Commit | Line | Data |
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c906108c | 1 | /* Memory-access and commands for "inferior" process, for GDB. |
990a07ab | 2 | |
28e7fd62 | 3 | Copyright (C) 1986-2013 Free Software Foundation, Inc. |
c906108c | 4 | |
c5aa993b | 5 | This file is part of GDB. |
c906108c | 6 | |
c5aa993b JM |
7 | This program is free software; you can redistribute it and/or modify |
8 | it under the terms of the GNU General Public License as published by | |
a9762ec7 | 9 | the Free Software Foundation; either version 3 of the License, or |
c5aa993b | 10 | (at your option) any later version. |
c906108c | 11 | |
c5aa993b JM |
12 | This program is distributed in the hope that it will be useful, |
13 | but WITHOUT ANY WARRANTY; without even the implied warranty of | |
14 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
15 | GNU General Public License for more details. | |
c906108c | 16 | |
c5aa993b | 17 | You should have received a copy of the GNU General Public License |
a9762ec7 | 18 | along with this program. If not, see <http://www.gnu.org/licenses/>. */ |
c906108c SS |
19 | |
20 | #include "defs.h" | |
5af949e3 | 21 | #include "arch-utils.h" |
c906108c SS |
22 | #include <signal.h> |
23 | #include "gdb_string.h" | |
24 | #include "symtab.h" | |
25 | #include "gdbtypes.h" | |
26 | #include "frame.h" | |
27 | #include "inferior.h" | |
28 | #include "environ.h" | |
29 | #include "value.h" | |
30 | #include "gdbcmd.h" | |
1adeb98a | 31 | #include "symfile.h" |
c906108c SS |
32 | #include "gdbcore.h" |
33 | #include "target.h" | |
34 | #include "language.h" | |
35 | #include "symfile.h" | |
36 | #include "objfiles.h" | |
c94fdfd0 | 37 | #include "completer.h" |
8b93c638 | 38 | #include "ui-out.h" |
6426a772 | 39 | #include "event-top.h" |
96baa820 | 40 | #include "parser-defs.h" |
36160dc4 | 41 | #include "regcache.h" |
f9418c0f | 42 | #include "reggroups.h" |
fe898f56 | 43 | #include "block.h" |
a77053c2 | 44 | #include "solib.h" |
f9418c0f | 45 | #include <ctype.h> |
92ad9cd9 | 46 | #include "gdb_assert.h" |
281b533b | 47 | #include "observer.h" |
424163ea | 48 | #include "target-descriptions.h" |
ad842144 | 49 | #include "user-regs.h" |
32c1e744 | 50 | #include "exceptions.h" |
700b53b1 | 51 | #include "cli/cli-decode.h" |
a0ef4274 | 52 | #include "gdbthread.h" |
79a45b7d | 53 | #include "valprint.h" |
edb3359d | 54 | #include "inline-frame.h" |
573cda03 | 55 | #include "tracepoint.h" |
09cee04b | 56 | #include "inf-loop.h" |
be34f849 | 57 | #include "continuations.h" |
f8eba3c6 | 58 | #include "linespec.h" |
d5551862 | 59 | |
a58dd373 EZ |
60 | /* Local functions: */ |
61 | ||
62 | static void nofp_registers_info (char *, int); | |
63 | ||
6a3a010b | 64 | static void print_return_value (struct value *function, |
c055b101 | 65 | struct type *value_type); |
11cf8741 | 66 | |
a14ed312 | 67 | static void until_next_command (int); |
c906108c | 68 | |
a14ed312 | 69 | static void until_command (char *, int); |
c906108c | 70 | |
a14ed312 | 71 | static void path_info (char *, int); |
c906108c | 72 | |
a14ed312 | 73 | static void path_command (char *, int); |
c906108c | 74 | |
a14ed312 | 75 | static void unset_command (char *, int); |
c906108c | 76 | |
a14ed312 | 77 | static void float_info (char *, int); |
c906108c | 78 | |
6ad8ae5c DJ |
79 | static void disconnect_command (char *, int); |
80 | ||
a14ed312 | 81 | static void unset_environment_command (char *, int); |
c906108c | 82 | |
a14ed312 | 83 | static void set_environment_command (char *, int); |
c906108c | 84 | |
a14ed312 | 85 | static void environment_info (char *, int); |
c906108c | 86 | |
a14ed312 | 87 | static void program_info (char *, int); |
c906108c | 88 | |
a14ed312 | 89 | static void finish_command (char *, int); |
c906108c | 90 | |
a14ed312 | 91 | static void signal_command (char *, int); |
c906108c | 92 | |
a14ed312 | 93 | static void jump_command (char *, int); |
c906108c | 94 | |
a14ed312 | 95 | static void step_1 (int, int, char *); |
3e43a32a MS |
96 | static void step_once (int skip_subroutines, int single_inst, |
97 | int count, int thread); | |
c906108c | 98 | |
a14ed312 | 99 | static void next_command (char *, int); |
c906108c | 100 | |
a14ed312 | 101 | static void step_command (char *, int); |
c906108c | 102 | |
a14ed312 | 103 | static void run_command (char *, int); |
c906108c | 104 | |
a14ed312 | 105 | static void run_no_args_command (char *args, int from_tty); |
392a587b | 106 | |
a14ed312 | 107 | static void go_command (char *line_no, int from_tty); |
392a587b | 108 | |
a14ed312 | 109 | static int strip_bg_char (char **); |
43ff13b4 | 110 | |
a14ed312 | 111 | void _initialize_infcmd (void); |
c906108c | 112 | |
c906108c | 113 | #define ERROR_NO_INFERIOR \ |
8a3fe4f8 | 114 | if (!target_has_execution) error (_("The program is not being run.")); |
c906108c | 115 | |
3e43a32a MS |
116 | /* Scratch area where string containing arguments to give to the |
117 | program will be stored by 'set args'. As soon as anything is | |
118 | stored, notice_args_set will move it into per-inferior storage. | |
1777feb0 | 119 | Arguments are separated by spaces. Empty string (pointer to '\0') |
3e43a32a | 120 | means no args. */ |
c906108c | 121 | |
3f81c18a | 122 | static char *inferior_args_scratch; |
c906108c | 123 | |
3f81c18a VP |
124 | /* Scratch area where 'set inferior-tty' will store user-provided value. |
125 | We'll immediate copy it into per-inferior storage. */ | |
552c04a7 | 126 | |
3f81c18a | 127 | static char *inferior_io_terminal_scratch; |
c906108c SS |
128 | |
129 | /* Pid of our debugged inferior, or 0 if no inferior now. | |
130 | Since various parts of infrun.c test this to see whether there is a program | |
131 | being debugged it should be nonzero (currently 3 is used) for remote | |
132 | debugging. */ | |
133 | ||
39f77062 | 134 | ptid_t inferior_ptid; |
c906108c | 135 | |
c906108c SS |
136 | /* Address at which inferior stopped. */ |
137 | ||
138 | CORE_ADDR stop_pc; | |
139 | ||
c906108c SS |
140 | /* Flag indicating that a command has proceeded the inferior past the |
141 | current breakpoint. */ | |
142 | ||
143 | int breakpoint_proceeded; | |
144 | ||
c906108c SS |
145 | /* Nonzero if stopped due to completion of a stack dummy routine. */ |
146 | ||
aa7d318d | 147 | enum stop_stack_kind stop_stack_dummy; |
c906108c SS |
148 | |
149 | /* Nonzero if stopped due to a random (unexpected) signal in inferior | |
150 | process. */ | |
151 | ||
152 | int stopped_by_random_signal; | |
153 | ||
c906108c | 154 | \f |
1777feb0 | 155 | /* Accessor routines. */ |
07091751 | 156 | |
3f81c18a VP |
157 | /* Set the io terminal for the current inferior. Ownership of |
158 | TERMINAL_NAME is not transferred. */ | |
159 | ||
3cb3b8df BR |
160 | void |
161 | set_inferior_io_terminal (const char *terminal_name) | |
162 | { | |
3f81c18a VP |
163 | xfree (current_inferior ()->terminal); |
164 | current_inferior ()->terminal = terminal_name ? xstrdup (terminal_name) : 0; | |
3cb3b8df BR |
165 | } |
166 | ||
167 | const char * | |
168 | get_inferior_io_terminal (void) | |
169 | { | |
3f81c18a VP |
170 | return current_inferior ()->terminal; |
171 | } | |
172 | ||
173 | static void | |
174 | set_inferior_tty_command (char *args, int from_tty, | |
175 | struct cmd_list_element *c) | |
176 | { | |
177 | /* CLI has assigned the user-provided value to inferior_io_terminal_scratch. | |
178 | Now route it to current inferior. */ | |
179 | set_inferior_io_terminal (inferior_io_terminal_scratch); | |
180 | } | |
181 | ||
182 | static void | |
183 | show_inferior_tty_command (struct ui_file *file, int from_tty, | |
184 | struct cmd_list_element *c, const char *value) | |
185 | { | |
186 | /* Note that we ignore the passed-in value in favor of computing it | |
187 | directly. */ | |
275f2e57 | 188 | const char *inferior_io_terminal = get_inferior_io_terminal (); |
abbb1732 | 189 | |
275f2e57 DJ |
190 | if (inferior_io_terminal == NULL) |
191 | inferior_io_terminal = ""; | |
3f81c18a | 192 | fprintf_filtered (gdb_stdout, |
275f2e57 DJ |
193 | _("Terminal for future runs of program being debugged " |
194 | "is \"%s\".\n"), inferior_io_terminal); | |
3cb3b8df BR |
195 | } |
196 | ||
07091751 FN |
197 | char * |
198 | get_inferior_args (void) | |
199 | { | |
3f81c18a | 200 | if (current_inferior ()->argc != 0) |
552c04a7 | 201 | { |
3f81c18a | 202 | char *n; |
552c04a7 | 203 | |
3f81c18a VP |
204 | n = construct_inferior_arguments (current_inferior ()->argc, |
205 | current_inferior ()->argv); | |
206 | set_inferior_args (n); | |
207 | xfree (n); | |
552c04a7 TT |
208 | } |
209 | ||
3f81c18a VP |
210 | if (current_inferior ()->args == NULL) |
211 | current_inferior ()->args = xstrdup (""); | |
552c04a7 | 212 | |
3f81c18a | 213 | return current_inferior ()->args; |
07091751 FN |
214 | } |
215 | ||
3f81c18a VP |
216 | /* Set the arguments for the current inferior. Ownership of |
217 | NEWARGS is not transferred. */ | |
218 | ||
219 | void | |
07091751 FN |
220 | set_inferior_args (char *newargs) |
221 | { | |
3f81c18a VP |
222 | xfree (current_inferior ()->args); |
223 | current_inferior ()->args = newargs ? xstrdup (newargs) : NULL; | |
224 | current_inferior ()->argc = 0; | |
225 | current_inferior ()->argv = 0; | |
07091751 | 226 | } |
c5aa993b | 227 | |
552c04a7 TT |
228 | void |
229 | set_inferior_args_vector (int argc, char **argv) | |
230 | { | |
3f81c18a VP |
231 | current_inferior ()->argc = argc; |
232 | current_inferior ()->argv = argv; | |
552c04a7 TT |
233 | } |
234 | ||
235 | /* Notice when `set args' is run. */ | |
236 | static void | |
3f81c18a | 237 | set_args_command (char *args, int from_tty, struct cmd_list_element *c) |
552c04a7 | 238 | { |
3f81c18a VP |
239 | /* CLI has assigned the user-provided value to inferior_args_scratch. |
240 | Now route it to current inferior. */ | |
241 | set_inferior_args (inferior_args_scratch); | |
552c04a7 TT |
242 | } |
243 | ||
244 | /* Notice when `show args' is run. */ | |
245 | static void | |
3f81c18a VP |
246 | show_args_command (struct ui_file *file, int from_tty, |
247 | struct cmd_list_element *c, const char *value) | |
552c04a7 | 248 | { |
258c00cc TT |
249 | /* Note that we ignore the passed-in value in favor of computing it |
250 | directly. */ | |
251 | deprecated_show_value_hack (file, from_tty, c, get_inferior_args ()); | |
552c04a7 TT |
252 | } |
253 | ||
c2a727fa TT |
254 | \f |
255 | /* Compute command-line string given argument vector. This does the | |
256 | same shell processing as fork_inferior. */ | |
c2a727fa | 257 | char * |
bd57a748 | 258 | construct_inferior_arguments (int argc, char **argv) |
c2a727fa TT |
259 | { |
260 | char *result; | |
261 | ||
262 | if (STARTUP_WITH_SHELL) | |
263 | { | |
5d60742e EZ |
264 | #ifdef __MINGW32__ |
265 | /* This holds all the characters considered special to the | |
266 | Windows shells. */ | |
267 | char *special = "\"!&*|[]{}<>?`~^=;, \t\n"; | |
268 | const char quote = '"'; | |
269 | #else | |
c2a727fa TT |
270 | /* This holds all the characters considered special to the |
271 | typical Unix shells. We include `^' because the SunOS | |
272 | /bin/sh treats it as a synonym for `|'. */ | |
5d60742e EZ |
273 | char *special = "\"!#$&*()\\|[]{}<>?'`~^; \t\n"; |
274 | const char quote = '\''; | |
275 | #endif | |
c2a727fa TT |
276 | int i; |
277 | int length = 0; | |
278 | char *out, *cp; | |
279 | ||
280 | /* We over-compute the size. It shouldn't matter. */ | |
281 | for (i = 0; i < argc; ++i) | |
c2226152 | 282 | length += 3 * strlen (argv[i]) + 1 + 2 * (argv[i][0] == '\0'); |
c2a727fa TT |
283 | |
284 | result = (char *) xmalloc (length); | |
285 | out = result; | |
286 | ||
287 | for (i = 0; i < argc; ++i) | |
288 | { | |
289 | if (i > 0) | |
290 | *out++ = ' '; | |
291 | ||
03c6228e AS |
292 | /* Need to handle empty arguments specially. */ |
293 | if (argv[i][0] == '\0') | |
c2a727fa | 294 | { |
5d60742e EZ |
295 | *out++ = quote; |
296 | *out++ = quote; | |
03c6228e AS |
297 | } |
298 | else | |
299 | { | |
5d60742e EZ |
300 | #ifdef __MINGW32__ |
301 | int quoted = 0; | |
302 | ||
303 | if (strpbrk (argv[i], special)) | |
304 | { | |
305 | quoted = 1; | |
306 | *out++ = quote; | |
307 | } | |
308 | #endif | |
03c6228e AS |
309 | for (cp = argv[i]; *cp; ++cp) |
310 | { | |
c2226152 AS |
311 | if (*cp == '\n') |
312 | { | |
313 | /* A newline cannot be quoted with a backslash (it | |
314 | just disappears), only by putting it inside | |
315 | quotes. */ | |
5d60742e | 316 | *out++ = quote; |
c2226152 | 317 | *out++ = '\n'; |
5d60742e | 318 | *out++ = quote; |
c2226152 AS |
319 | } |
320 | else | |
321 | { | |
5d60742e EZ |
322 | #ifdef __MINGW32__ |
323 | if (*cp == quote) | |
324 | #else | |
c2226152 | 325 | if (strchr (special, *cp) != NULL) |
5d60742e | 326 | #endif |
c2226152 AS |
327 | *out++ = '\\'; |
328 | *out++ = *cp; | |
329 | } | |
03c6228e | 330 | } |
5d60742e EZ |
331 | #ifdef __MINGW32__ |
332 | if (quoted) | |
333 | *out++ = quote; | |
334 | #endif | |
c2a727fa TT |
335 | } |
336 | } | |
337 | *out = '\0'; | |
338 | } | |
339 | else | |
340 | { | |
341 | /* In this case we can't handle arguments that contain spaces, | |
342 | tabs, or newlines -- see breakup_args(). */ | |
343 | int i; | |
344 | int length = 0; | |
345 | ||
346 | for (i = 0; i < argc; ++i) | |
347 | { | |
348 | char *cp = strchr (argv[i], ' '); | |
349 | if (cp == NULL) | |
350 | cp = strchr (argv[i], '\t'); | |
351 | if (cp == NULL) | |
352 | cp = strchr (argv[i], '\n'); | |
353 | if (cp != NULL) | |
3e43a32a MS |
354 | error (_("can't handle command-line " |
355 | "argument containing whitespace")); | |
c2a727fa TT |
356 | length += strlen (argv[i]) + 1; |
357 | } | |
358 | ||
359 | result = (char *) xmalloc (length); | |
360 | result[0] = '\0'; | |
361 | for (i = 0; i < argc; ++i) | |
362 | { | |
363 | if (i > 0) | |
364 | strcat (result, " "); | |
365 | strcat (result, argv[i]); | |
366 | } | |
367 | } | |
368 | ||
369 | return result; | |
370 | } | |
552c04a7 TT |
371 | \f |
372 | ||
43ff13b4 JM |
373 | /* This function detects whether or not a '&' character (indicating |
374 | background execution) has been added as *the last* of the arguments ARGS | |
1777feb0 MS |
375 | of a command. If it has, it removes it and returns 1. Otherwise it |
376 | does nothing and returns 0. */ | |
c5aa993b | 377 | static int |
fba45db2 | 378 | strip_bg_char (char **args) |
43ff13b4 JM |
379 | { |
380 | char *p = NULL; | |
c5aa993b | 381 | |
9846de1b | 382 | p = strchr (*args, '&'); |
c5aa993b | 383 | |
9846de1b | 384 | if (p) |
43ff13b4 JM |
385 | { |
386 | if (p == (*args + strlen (*args) - 1)) | |
387 | { | |
c5aa993b | 388 | if (strlen (*args) > 1) |
43ff13b4 JM |
389 | { |
390 | do | |
391 | p--; | |
392 | while (*p == ' ' || *p == '\t'); | |
393 | *(p + 1) = '\0'; | |
394 | } | |
395 | else | |
396 | *args = 0; | |
397 | return 1; | |
398 | } | |
399 | } | |
400 | return 0; | |
401 | } | |
402 | ||
281b533b DJ |
403 | /* Common actions to take after creating any sort of inferior, by any |
404 | means (running, attaching, connecting, et cetera). The target | |
405 | should be stopped. */ | |
406 | ||
407 | void | |
408 | post_create_inferior (struct target_ops *target, int from_tty) | |
409 | { | |
ce406537 PA |
410 | volatile struct gdb_exception ex; |
411 | ||
b79599ff DP |
412 | /* Be sure we own the terminal in case write operations are performed. */ |
413 | target_terminal_ours (); | |
414 | ||
424163ea DJ |
415 | /* If the target hasn't taken care of this already, do it now. |
416 | Targets which need to access registers during to_open, | |
417 | to_create_inferior, or to_attach should do it earlier; but many | |
418 | don't need to. */ | |
419 | target_find_description (); | |
420 | ||
ce406537 PA |
421 | /* Now that we know the register layout, retrieve current PC. But |
422 | if the PC is unavailable (e.g., we're opening a core file with | |
423 | missing registers info), ignore it. */ | |
424 | stop_pc = 0; | |
425 | TRY_CATCH (ex, RETURN_MASK_ERROR) | |
426 | { | |
427 | stop_pc = regcache_read_pc (get_current_regcache ()); | |
428 | } | |
429 | if (ex.reason < 0 && ex.error != NOT_AVAILABLE_ERROR) | |
430 | throw_exception (ex); | |
f698437e | 431 | |
50c71eaf PA |
432 | if (exec_bfd) |
433 | { | |
2eff07b3 PP |
434 | const unsigned solib_add_generation |
435 | = current_program_space->solib_add_generation; | |
436 | ||
9353355f DJ |
437 | /* Create the hooks to handle shared library load and unload |
438 | events. */ | |
439 | #ifdef SOLIB_CREATE_INFERIOR_HOOK | |
37706b70 | 440 | SOLIB_CREATE_INFERIOR_HOOK (PIDGET (inferior_ptid)); |
9353355f | 441 | #else |
268a4a75 JK |
442 | solib_create_inferior_hook (from_tty); |
443 | #endif | |
268a4a75 | 444 | |
2eff07b3 PP |
445 | if (current_program_space->solib_add_generation == solib_add_generation) |
446 | { | |
447 | /* The platform-specific hook should load initial shared libraries, | |
448 | but didn't. FROM_TTY will be incorrectly 0 but such solib | |
449 | targets should be fixed anyway. Call it only after the solib | |
450 | target has been initialized by solib_create_inferior_hook. */ | |
451 | ||
452 | if (info_verbose) | |
453 | warning (_("platform-specific solib_create_inferior_hook did " | |
454 | "not load initial shared libraries.")); | |
455 | ||
456 | /* If the solist is global across processes, there's no need to | |
457 | refetch it here. */ | |
f5656ead | 458 | if (!gdbarch_has_global_solist (target_gdbarch ())) |
2eff07b3 | 459 | { |
268a4a75 | 460 | #ifdef SOLIB_ADD |
2eff07b3 | 461 | SOLIB_ADD (NULL, 0, target, auto_solib_add); |
268a4a75 | 462 | #else |
2eff07b3 | 463 | solib_add (NULL, 0, target, auto_solib_add); |
9353355f | 464 | #endif |
2eff07b3 PP |
465 | } |
466 | } | |
9353355f DJ |
467 | } |
468 | ||
ea5d7a99 PM |
469 | /* If the user sets watchpoints before execution having started, |
470 | then she gets software watchpoints, because GDB can't know which | |
471 | target will end up being pushed, or if it supports hardware | |
472 | watchpoints or not. breakpoint_re_set takes care of promoting | |
473 | watchpoints to hardware watchpoints if possible, however, if this | |
474 | new inferior doesn't load shared libraries or we don't pull in | |
475 | symbols from any other source on this target/arch, | |
476 | breakpoint_re_set is never called. Call it now so that software | |
477 | watchpoints get a chance to be promoted to hardware watchpoints | |
478 | if the now pushed target supports hardware watchpoints. */ | |
479 | breakpoint_re_set (); | |
480 | ||
281b533b DJ |
481 | observer_notify_inferior_created (target, from_tty); |
482 | } | |
483 | ||
a4d5f2e0 JB |
484 | /* Kill the inferior if already running. This function is designed |
485 | to be called when we are about to start the execution of the program | |
486 | from the beginning. Ask the user to confirm that he wants to restart | |
487 | the program being debugged when FROM_TTY is non-null. */ | |
c906108c | 488 | |
8edfe269 | 489 | static void |
a4d5f2e0 JB |
490 | kill_if_already_running (int from_tty) |
491 | { | |
39f77062 | 492 | if (! ptid_equal (inferior_ptid, null_ptid) && target_has_execution) |
c906108c | 493 | { |
8edfe269 DJ |
494 | /* Bail out before killing the program if we will not be able to |
495 | restart it. */ | |
496 | target_require_runnable (); | |
497 | ||
adf40b2e | 498 | if (from_tty |
9e2f0ad4 HZ |
499 | && !query (_("The program being debugged has been started already.\n\ |
500 | Start it from the beginning? "))) | |
8a3fe4f8 | 501 | error (_("Program not restarted.")); |
c906108c | 502 | target_kill (); |
c906108c | 503 | } |
a4d5f2e0 JB |
504 | } |
505 | ||
1777feb0 | 506 | /* Implement the "run" command. If TBREAK_AT_MAIN is set, then insert |
f67a969f JB |
507 | a temporary breakpoint at the begining of the main program before |
508 | running the program. */ | |
509 | ||
a4d5f2e0 | 510 | static void |
f67a969f | 511 | run_command_1 (char *args, int from_tty, int tbreak_at_main) |
a4d5f2e0 JB |
512 | { |
513 | char *exec_file; | |
29f49a6a PA |
514 | struct cleanup *old_chain; |
515 | ptid_t ptid; | |
79a45e25 | 516 | struct ui_out *uiout = current_uiout; |
c906108c | 517 | |
a4d5f2e0 JB |
518 | dont_repeat (); |
519 | ||
520 | kill_if_already_running (from_tty); | |
3c35e65b UW |
521 | |
522 | init_wait_for_inferior (); | |
c906108c SS |
523 | clear_breakpoint_hit_counts (); |
524 | ||
fd79ecee DJ |
525 | /* Clean up any leftovers from other runs. Some other things from |
526 | this function should probably be moved into target_pre_inferior. */ | |
527 | target_pre_inferior (from_tty); | |
528 | ||
39ad761d JB |
529 | /* The comment here used to read, "The exec file is re-read every |
530 | time we do a generic_mourn_inferior, so we just have to worry | |
531 | about the symbol file." The `generic_mourn_inferior' function | |
532 | gets called whenever the program exits. However, suppose the | |
533 | program exits, and *then* the executable file changes? We need | |
534 | to check again here. Since reopen_exec_file doesn't do anything | |
535 | if the timestamp hasn't changed, I don't see the harm. */ | |
536 | reopen_exec_file (); | |
c906108c SS |
537 | reread_symbols (); |
538 | ||
f67a969f JB |
539 | /* Insert the temporary breakpoint if a location was specified. */ |
540 | if (tbreak_at_main) | |
541 | tbreak_command (main_name (), 0); | |
542 | ||
39ad761d JB |
543 | exec_file = (char *) get_exec_file (0); |
544 | ||
9908b566 VP |
545 | if (non_stop && !target_supports_non_stop ()) |
546 | error (_("The target does not support running in non-stop mode.")); | |
547 | ||
c906108c SS |
548 | /* We keep symbols from add-symbol-file, on the grounds that the |
549 | user might want to add some symbols before running the program | |
550 | (right?). But sometimes (dynamic loading where the user manually | |
551 | introduces the new symbols with add-symbol-file), the code which | |
552 | the symbols describe does not persist between runs. Currently | |
553 | the user has to manually nuke all symbols between runs if they | |
554 | want them to go away (PR 2207). This is probably reasonable. */ | |
555 | ||
43ff13b4 | 556 | if (!args) |
6426a772 | 557 | { |
362646f5 | 558 | if (target_can_async_p ()) |
6426a772 JM |
559 | async_disable_stdin (); |
560 | } | |
43ff13b4 | 561 | else |
c906108c | 562 | { |
43ff13b4 JM |
563 | int async_exec = strip_bg_char (&args); |
564 | ||
565 | /* If we get a request for running in the bg but the target | |
1777feb0 | 566 | doesn't support it, error out. */ |
362646f5 | 567 | if (async_exec && !target_can_async_p ()) |
8a3fe4f8 | 568 | error (_("Asynchronous execution not supported on this target.")); |
43ff13b4 JM |
569 | |
570 | /* If we don't get a request of running in the bg, then we need | |
1777feb0 | 571 | to simulate synchronous (fg) execution. */ |
362646f5 | 572 | if (!async_exec && target_can_async_p ()) |
43ff13b4 | 573 | { |
1777feb0 | 574 | /* Simulate synchronous execution. */ |
6426a772 | 575 | async_disable_stdin (); |
43ff13b4 JM |
576 | } |
577 | ||
1777feb0 | 578 | /* If there were other args, beside '&', process them. */ |
43ff13b4 | 579 | if (args) |
3f81c18a | 580 | set_inferior_args (args); |
c906108c SS |
581 | } |
582 | ||
583 | if (from_tty) | |
584 | { | |
8b93c638 JM |
585 | ui_out_field_string (uiout, NULL, "Starting program"); |
586 | ui_out_text (uiout, ": "); | |
587 | if (exec_file) | |
588 | ui_out_field_string (uiout, "execfile", exec_file); | |
589 | ui_out_spaces (uiout, 1); | |
552c04a7 TT |
590 | /* We call get_inferior_args() because we might need to compute |
591 | the value now. */ | |
592 | ui_out_field_string (uiout, "infargs", get_inferior_args ()); | |
8b93c638 JM |
593 | ui_out_text (uiout, "\n"); |
594 | ui_out_flush (uiout); | |
c906108c SS |
595 | } |
596 | ||
552c04a7 TT |
597 | /* We call get_inferior_args() because we might need to compute |
598 | the value now. */ | |
599 | target_create_inferior (exec_file, get_inferior_args (), | |
3e43a32a MS |
600 | environ_vector (current_inferior ()->environment), |
601 | from_tty); | |
281b533b | 602 | |
29f49a6a PA |
603 | /* We're starting off a new process. When we get out of here, in |
604 | non-stop mode, finish the state of all threads of that process, | |
605 | but leave other threads alone, as they may be stopped in internal | |
606 | events --- the frontend shouldn't see them as stopped. In | |
607 | all-stop, always finish the state of all threads, as we may be | |
608 | resuming more than just the new process. */ | |
609 | if (non_stop) | |
610 | ptid = pid_to_ptid (ptid_get_pid (inferior_ptid)); | |
611 | else | |
612 | ptid = minus_one_ptid; | |
613 | old_chain = make_cleanup (finish_thread_state_cleanup, &ptid); | |
614 | ||
de1b3c3d PA |
615 | /* Pass zero for FROM_TTY, because at this point the "run" command |
616 | has done its thing; now we are setting up the running program. */ | |
617 | post_create_inferior (¤t_target, 0); | |
281b533b | 618 | |
74d1f91e JK |
619 | /* Start the target running. Do not use -1 continuation as it would skip |
620 | breakpoint right at the entry point. */ | |
a493e3e2 | 621 | proceed (regcache_read_pc (get_current_regcache ()), GDB_SIGNAL_0, 0); |
c906108c | 622 | |
29f49a6a PA |
623 | /* Since there was no error, there's no need to finish the thread |
624 | states here. */ | |
625 | discard_cleanups (old_chain); | |
626 | } | |
c906108c | 627 | |
f67a969f JB |
628 | static void |
629 | run_command (char *args, int from_tty) | |
630 | { | |
631 | run_command_1 (args, from_tty, 0); | |
632 | } | |
633 | ||
c906108c | 634 | static void |
fba45db2 | 635 | run_no_args_command (char *args, int from_tty) |
c906108c | 636 | { |
3f81c18a | 637 | set_inferior_args (""); |
c906108c | 638 | } |
c906108c | 639 | \f |
c5aa993b | 640 | |
a4d5f2e0 JB |
641 | /* Start the execution of the program up until the beginning of the main |
642 | program. */ | |
643 | ||
644 | static void | |
645 | start_command (char *args, int from_tty) | |
646 | { | |
647 | /* Some languages such as Ada need to search inside the program | |
648 | minimal symbols for the location where to put the temporary | |
649 | breakpoint before starting. */ | |
650 | if (!have_minimal_symbols ()) | |
8a3fe4f8 | 651 | error (_("No symbol table loaded. Use the \"file\" command.")); |
a4d5f2e0 | 652 | |
f67a969f JB |
653 | /* Run the program until reaching the main procedure... */ |
654 | run_command_1 (args, from_tty, 1); | |
a4d5f2e0 JB |
655 | } |
656 | ||
8cae4b3f PA |
657 | static int |
658 | proceed_thread_callback (struct thread_info *thread, void *arg) | |
659 | { | |
74531fed PA |
660 | /* We go through all threads individually instead of compressing |
661 | into a single target `resume_all' request, because some threads | |
662 | may be stopped in internal breakpoints/events, or stopped waiting | |
663 | for its turn in the displaced stepping queue (that is, they are | |
664 | running && !executing). The target side has no idea about why | |
665 | the thread is stopped, so a `resume_all' command would resume too | |
666 | much. If/when GDB gains a way to tell the target `hold this | |
667 | thread stopped until I say otherwise', then we can optimize | |
668 | this. */ | |
4f8d22e3 | 669 | if (!is_stopped (thread->ptid)) |
8cae4b3f PA |
670 | return 0; |
671 | ||
dcf4fbde | 672 | switch_to_thread (thread->ptid); |
8cae4b3f | 673 | clear_proceed_status (); |
a493e3e2 | 674 | proceed ((CORE_ADDR) -1, GDB_SIGNAL_DEFAULT, 0); |
8cae4b3f PA |
675 | return 0; |
676 | } | |
677 | ||
70221824 | 678 | static void |
d729566a PA |
679 | ensure_valid_thread (void) |
680 | { | |
681 | if (ptid_equal (inferior_ptid, null_ptid) | |
682 | || is_exited (inferior_ptid)) | |
3e43a32a | 683 | error (_("Cannot execute this command without a live selected thread.")); |
d729566a PA |
684 | } |
685 | ||
573cda03 | 686 | /* If the user is looking at trace frames, any resumption of execution |
1777feb0 | 687 | is likely to mix up recorded and live target data. So simply |
573cda03 SS |
688 | disallow those commands. */ |
689 | ||
70221824 | 690 | static void |
573cda03 SS |
691 | ensure_not_tfind_mode (void) |
692 | { | |
693 | if (get_traceframe_number () >= 0) | |
3e43a32a | 694 | error (_("Cannot execute this command while looking at trace frames.")); |
573cda03 SS |
695 | } |
696 | ||
3d3fef6b YQ |
697 | /* Throw an error indicating the current thread is running. */ |
698 | ||
699 | static void | |
700 | error_is_running (void) | |
701 | { | |
702 | error (_("Cannot execute this command while " | |
703 | "the selected thread is running.")); | |
704 | } | |
705 | ||
706 | /* Calls error_is_running if the current thread is running. */ | |
707 | ||
708 | static void | |
709 | ensure_not_running (void) | |
710 | { | |
711 | if (is_running (inferior_ptid)) | |
712 | error_is_running (); | |
713 | } | |
714 | ||
77ebaa5a VP |
715 | void |
716 | continue_1 (int all_threads) | |
717 | { | |
3d488bfc | 718 | ERROR_NO_INFERIOR; |
573cda03 | 719 | ensure_not_tfind_mode (); |
3d488bfc | 720 | |
77ebaa5a VP |
721 | if (non_stop && all_threads) |
722 | { | |
723 | /* Don't error out if the current thread is running, because | |
abbb1732 | 724 | there may be other stopped threads. */ |
77ebaa5a VP |
725 | struct cleanup *old_chain; |
726 | ||
727 | /* Backup current thread and selected frame. */ | |
728 | old_chain = make_cleanup_restore_current_thread (); | |
729 | ||
730 | iterate_over_threads (proceed_thread_callback, NULL); | |
731 | ||
732 | /* Restore selected ptid. */ | |
733 | do_cleanups (old_chain); | |
734 | } | |
735 | else | |
736 | { | |
d729566a | 737 | ensure_valid_thread (); |
77ebaa5a VP |
738 | ensure_not_running (); |
739 | clear_proceed_status (); | |
a493e3e2 | 740 | proceed ((CORE_ADDR) -1, GDB_SIGNAL_DEFAULT, 0); |
77ebaa5a VP |
741 | } |
742 | } | |
743 | ||
8cae4b3f | 744 | /* continue [-a] [proceed-count] [&] */ |
1dd5fedc | 745 | static void |
8cae4b3f | 746 | continue_command (char *args, int from_tty) |
c906108c | 747 | { |
c5aa993b | 748 | int async_exec = 0; |
8cae4b3f | 749 | int all_threads = 0; |
c906108c SS |
750 | ERROR_NO_INFERIOR; |
751 | ||
1777feb0 | 752 | /* Find out whether we must run in the background. */ |
8cae4b3f PA |
753 | if (args != NULL) |
754 | async_exec = strip_bg_char (&args); | |
43ff13b4 JM |
755 | |
756 | /* If we must run in the background, but the target can't do it, | |
1777feb0 | 757 | error out. */ |
362646f5 | 758 | if (async_exec && !target_can_async_p ()) |
8a3fe4f8 | 759 | error (_("Asynchronous execution not supported on this target.")); |
43ff13b4 JM |
760 | |
761 | /* If we are not asked to run in the bg, then prepare to run in the | |
1777feb0 | 762 | foreground, synchronously. */ |
362646f5 | 763 | if (!async_exec && target_can_async_p ()) |
c5aa993b | 764 | { |
1777feb0 | 765 | /* Simulate synchronous execution. */ |
6426a772 | 766 | async_disable_stdin (); |
43ff13b4 | 767 | } |
c906108c | 768 | |
8cae4b3f PA |
769 | if (args != NULL) |
770 | { | |
771 | if (strncmp (args, "-a", sizeof ("-a") - 1) == 0) | |
772 | { | |
773 | all_threads = 1; | |
774 | args += sizeof ("-a") - 1; | |
775 | if (*args == '\0') | |
776 | args = NULL; | |
777 | } | |
778 | } | |
779 | ||
780 | if (!non_stop && all_threads) | |
781 | error (_("`-a' is meaningless in all-stop mode.")); | |
782 | ||
783 | if (args != NULL && all_threads) | |
3e43a32a MS |
784 | error (_("Can't resume all threads and specify " |
785 | "proceed count simultaneously.")); | |
8cae4b3f PA |
786 | |
787 | /* If we have an argument left, set proceed count of breakpoint we | |
788 | stopped at. */ | |
789 | if (args != NULL) | |
c906108c | 790 | { |
347bddb7 | 791 | bpstat bs = NULL; |
8671a17b PA |
792 | int num, stat; |
793 | int stopped = 0; | |
347bddb7 PA |
794 | struct thread_info *tp; |
795 | ||
796 | if (non_stop) | |
e09875d4 | 797 | tp = find_thread_ptid (inferior_ptid); |
347bddb7 PA |
798 | else |
799 | { | |
800 | ptid_t last_ptid; | |
801 | struct target_waitstatus ws; | |
802 | ||
803 | get_last_target_status (&last_ptid, &ws); | |
e09875d4 | 804 | tp = find_thread_ptid (last_ptid); |
347bddb7 PA |
805 | } |
806 | if (tp != NULL) | |
16c381f0 | 807 | bs = tp->control.stop_bpstat; |
8671a17b PA |
808 | |
809 | while ((stat = bpstat_num (&bs, &num)) != 0) | |
810 | if (stat > 0) | |
811 | { | |
812 | set_ignore_count (num, | |
8cae4b3f | 813 | parse_and_eval_long (args) - 1, |
8671a17b PA |
814 | from_tty); |
815 | /* set_ignore_count prints a message ending with a period. | |
816 | So print two spaces before "Continuing.". */ | |
817 | if (from_tty) | |
818 | printf_filtered (" "); | |
819 | stopped = 1; | |
820 | } | |
821 | ||
822 | if (!stopped && from_tty) | |
c906108c SS |
823 | { |
824 | printf_filtered | |
825 | ("Not stopped at any breakpoint; argument ignored.\n"); | |
826 | } | |
c906108c SS |
827 | } |
828 | ||
829 | if (from_tty) | |
a3f17187 | 830 | printf_filtered (_("Continuing.\n")); |
c906108c | 831 | |
77ebaa5a | 832 | continue_1 (all_threads); |
c906108c SS |
833 | } |
834 | \f | |
edb3359d DJ |
835 | /* Record the starting point of a "step" or "next" command. */ |
836 | ||
837 | static void | |
838 | set_step_frame (void) | |
839 | { | |
840 | struct symtab_and_line sal; | |
841 | ||
842 | find_frame_sal (get_current_frame (), &sal); | |
843 | set_step_info (get_current_frame (), sal); | |
844 | } | |
845 | ||
c906108c SS |
846 | /* Step until outside of current statement. */ |
847 | ||
c906108c | 848 | static void |
fba45db2 | 849 | step_command (char *count_string, int from_tty) |
c906108c SS |
850 | { |
851 | step_1 (0, 0, count_string); | |
852 | } | |
853 | ||
854 | /* Likewise, but skip over subroutine calls as if single instructions. */ | |
855 | ||
c906108c | 856 | static void |
fba45db2 | 857 | next_command (char *count_string, int from_tty) |
c906108c SS |
858 | { |
859 | step_1 (1, 0, count_string); | |
860 | } | |
861 | ||
862 | /* Likewise, but step only one instruction. */ | |
863 | ||
1dd5fedc | 864 | static void |
fba45db2 | 865 | stepi_command (char *count_string, int from_tty) |
c906108c SS |
866 | { |
867 | step_1 (0, 1, count_string); | |
868 | } | |
869 | ||
1dd5fedc | 870 | static void |
fba45db2 | 871 | nexti_command (char *count_string, int from_tty) |
c906108c SS |
872 | { |
873 | step_1 (1, 1, count_string); | |
874 | } | |
875 | ||
186c406b | 876 | void |
611c83ae | 877 | delete_longjmp_breakpoint_cleanup (void *arg) |
74b7792f | 878 | { |
611c83ae PA |
879 | int thread = * (int *) arg; |
880 | delete_longjmp_breakpoint (thread); | |
74b7792f AC |
881 | } |
882 | ||
c906108c | 883 | static void |
fba45db2 | 884 | step_1 (int skip_subroutines, int single_inst, char *count_string) |
c906108c | 885 | { |
52f0bd74 | 886 | int count = 1; |
f107f563 | 887 | struct cleanup *cleanups = make_cleanup (null_cleanup, NULL); |
43ff13b4 | 888 | int async_exec = 0; |
b3dc826b | 889 | int thread = -1; |
c5aa993b | 890 | |
c906108c | 891 | ERROR_NO_INFERIOR; |
573cda03 | 892 | ensure_not_tfind_mode (); |
d729566a | 893 | ensure_valid_thread (); |
94cc34af | 894 | ensure_not_running (); |
43ff13b4 JM |
895 | |
896 | if (count_string) | |
897 | async_exec = strip_bg_char (&count_string); | |
c5aa993b | 898 | |
43ff13b4 | 899 | /* If we get a request for running in the bg but the target |
1777feb0 | 900 | doesn't support it, error out. */ |
362646f5 | 901 | if (async_exec && !target_can_async_p ()) |
8a3fe4f8 | 902 | error (_("Asynchronous execution not supported on this target.")); |
43ff13b4 JM |
903 | |
904 | /* If we don't get a request of running in the bg, then we need | |
1777feb0 | 905 | to simulate synchronous (fg) execution. */ |
362646f5 | 906 | if (!async_exec && target_can_async_p ()) |
43ff13b4 | 907 | { |
1777feb0 | 908 | /* Simulate synchronous execution. */ |
6426a772 | 909 | async_disable_stdin (); |
43ff13b4 JM |
910 | } |
911 | ||
bb518678 | 912 | count = count_string ? parse_and_eval_long (count_string) : 1; |
c906108c | 913 | |
1777feb0 | 914 | if (!single_inst || skip_subroutines) /* Leave si command alone. */ |
c906108c | 915 | { |
186c406b TT |
916 | struct thread_info *tp = inferior_thread (); |
917 | ||
611c83ae | 918 | if (in_thread_list (inferior_ptid)) |
b3dc826b | 919 | thread = pid_to_thread_id (inferior_ptid); |
611c83ae | 920 | |
186c406b | 921 | set_longjmp_breakpoint (tp, get_frame_id (get_current_frame ())); |
611c83ae | 922 | |
b3dc826b | 923 | make_cleanup (delete_longjmp_breakpoint_cleanup, &thread); |
c2d11a7d JM |
924 | } |
925 | ||
37d94800 | 926 | /* In synchronous case, all is well; each step_once call will step once. */ |
362646f5 | 927 | if (!target_can_async_p ()) |
c2d11a7d JM |
928 | { |
929 | for (; count > 0; count--) | |
930 | { | |
37d94800 | 931 | step_once (skip_subroutines, single_inst, count, thread); |
c2d11a7d | 932 | |
751b8ce1 PA |
933 | if (!target_has_execution) |
934 | break; | |
c2d11a7d JM |
935 | else |
936 | { | |
751b8ce1 PA |
937 | struct thread_info *tp = inferior_thread (); |
938 | ||
939 | if (!tp->control.stop_step || !tp->step_multi) | |
940 | { | |
941 | /* If we stopped for some reason that is not stepping | |
942 | there are no further steps to make. */ | |
943 | tp->step_multi = 0; | |
944 | break; | |
945 | } | |
c2d11a7d | 946 | } |
c2d11a7d JM |
947 | } |
948 | ||
f107f563 | 949 | do_cleanups (cleanups); |
c2d11a7d | 950 | } |
c2d11a7d JM |
951 | else |
952 | { | |
37d94800 PA |
953 | /* In the case of an asynchronous target things get complicated; |
954 | do only one step for now, before returning control to the | |
955 | event loop. Let the continuation figure out how many other | |
956 | steps we need to do, and handle them one at the time, through | |
957 | step_once. */ | |
b3dc826b | 958 | step_once (skip_subroutines, single_inst, count, thread); |
37d94800 | 959 | |
611c83ae | 960 | /* We are running, and the continuation is installed. It will |
f107f563 VP |
961 | disable the longjmp breakpoint as appropriate. */ |
962 | discard_cleanups (cleanups); | |
c906108c | 963 | } |
c2d11a7d | 964 | } |
c906108c | 965 | |
bfec99b2 PA |
966 | struct step_1_continuation_args |
967 | { | |
968 | int count; | |
969 | int skip_subroutines; | |
970 | int single_inst; | |
971 | int thread; | |
972 | }; | |
973 | ||
c2d11a7d JM |
974 | /* Called after we are done with one step operation, to check whether |
975 | we need to step again, before we print the prompt and return control | |
1777feb0 MS |
976 | to the user. If count is > 1, we will need to do one more call to |
977 | proceed(), via step_once(). Basically it is like step_once and | |
978 | step_1_continuation are co-recursive. */ | |
c2d11a7d | 979 | static void |
fa4cd53f | 980 | step_1_continuation (void *args, int err) |
c2d11a7d | 981 | { |
bfec99b2 | 982 | struct step_1_continuation_args *a = args; |
f13468d9 | 983 | |
af679fd0 | 984 | if (target_has_execution) |
f13468d9 | 985 | { |
af679fd0 PA |
986 | struct thread_info *tp; |
987 | ||
988 | tp = inferior_thread (); | |
fa4cd53f PA |
989 | if (!err |
990 | && tp->step_multi && tp->control.stop_step) | |
af679fd0 PA |
991 | { |
992 | /* There are more steps to make, and we did stop due to | |
993 | ending a stepping range. Do another step. */ | |
37d94800 PA |
994 | step_once (a->skip_subroutines, a->single_inst, |
995 | a->count - 1, a->thread); | |
af679fd0 PA |
996 | return; |
997 | } | |
998 | tp->step_multi = 0; | |
f107f563 | 999 | } |
af679fd0 | 1000 | |
fa4cd53f PA |
1001 | /* We either hit an error, or stopped for some reason that is |
1002 | not stepping, or there are no further steps to make. | |
1003 | Cleanup. */ | |
af679fd0 PA |
1004 | if (!a->single_inst || a->skip_subroutines) |
1005 | delete_longjmp_breakpoint (a->thread); | |
c2d11a7d JM |
1006 | } |
1007 | ||
37d94800 PA |
1008 | /* Do just one step operation. This is useful to implement the 'step |
1009 | n' kind of commands. In case of asynchronous targets, we will have | |
1010 | to set up a continuation to be done after the target stops (after | |
1011 | this one step). For synch targets, the caller handles further | |
1012 | stepping. */ | |
1013 | ||
1014 | static void | |
611c83ae | 1015 | step_once (int skip_subroutines, int single_inst, int count, int thread) |
bfec99b2 | 1016 | { |
edb3359d | 1017 | struct frame_info *frame = get_current_frame (); |
c2d11a7d JM |
1018 | |
1019 | if (count > 0) | |
c906108c | 1020 | { |
4e1c45ea PA |
1021 | /* Don't assume THREAD is a valid thread id. It is set to -1 if |
1022 | the longjmp breakpoint was not required. Use the | |
1023 | INFERIOR_PTID thread instead, which is the same thread when | |
1024 | THREAD is set. */ | |
1025 | struct thread_info *tp = inferior_thread (); | |
abbb1732 | 1026 | |
c906108c | 1027 | clear_proceed_status (); |
edb3359d | 1028 | set_step_frame (); |
c906108c | 1029 | |
c5aa993b | 1030 | if (!single_inst) |
c906108c | 1031 | { |
1641cfcc PA |
1032 | CORE_ADDR pc; |
1033 | ||
edb3359d DJ |
1034 | /* Step at an inlined function behaves like "down". */ |
1035 | if (!skip_subroutines && !single_inst | |
1036 | && inline_skipped_frames (inferior_ptid)) | |
1037 | { | |
09cee04b PA |
1038 | ptid_t resume_ptid; |
1039 | ||
1040 | /* Pretend that we've ran. */ | |
1041 | resume_ptid = user_visible_resume_ptid (1); | |
1042 | set_running (resume_ptid, 1); | |
1043 | ||
edb3359d DJ |
1044 | step_into_inline_frame (inferior_ptid); |
1045 | if (count > 1) | |
1046 | step_once (skip_subroutines, single_inst, count - 1, thread); | |
1047 | else | |
09cee04b PA |
1048 | { |
1049 | /* Pretend that we've stopped. */ | |
1050 | normal_stop (); | |
1051 | ||
1052 | if (target_can_async_p ()) | |
1053 | inferior_event_handler (INF_EXEC_COMPLETE, NULL); | |
1054 | } | |
edb3359d DJ |
1055 | return; |
1056 | } | |
1057 | ||
1641cfcc PA |
1058 | pc = get_frame_pc (frame); |
1059 | find_pc_line_pc_range (pc, | |
16c381f0 JK |
1060 | &tp->control.step_range_start, |
1061 | &tp->control.step_range_end); | |
5fbbeb29 CF |
1062 | |
1063 | /* If we have no line info, switch to stepi mode. */ | |
16c381f0 JK |
1064 | if (tp->control.step_range_end == 0 && step_stop_if_no_debug) |
1065 | tp->control.step_range_start = tp->control.step_range_end = 1; | |
1066 | else if (tp->control.step_range_end == 0) | |
c906108c | 1067 | { |
2c02bd72 | 1068 | const char *name; |
abbb1732 | 1069 | |
1641cfcc | 1070 | if (find_pc_partial_function (pc, &name, |
16c381f0 JK |
1071 | &tp->control.step_range_start, |
1072 | &tp->control.step_range_end) == 0) | |
8a3fe4f8 | 1073 | error (_("Cannot find bounds of current function")); |
c906108c SS |
1074 | |
1075 | target_terminal_ours (); | |
3e43a32a MS |
1076 | printf_filtered (_("Single stepping until exit from function %s," |
1077 | "\nwhich has no line number information.\n"), | |
1078 | name); | |
c906108c SS |
1079 | } |
1080 | } | |
1081 | else | |
1082 | { | |
1083 | /* Say we are stepping, but stop after one insn whatever it does. */ | |
16c381f0 | 1084 | tp->control.step_range_start = tp->control.step_range_end = 1; |
c906108c SS |
1085 | if (!skip_subroutines) |
1086 | /* It is stepi. | |
1087 | Don't step over function calls, not even to functions lacking | |
1088 | line numbers. */ | |
16c381f0 | 1089 | tp->control.step_over_calls = STEP_OVER_NONE; |
c906108c SS |
1090 | } |
1091 | ||
1092 | if (skip_subroutines) | |
16c381f0 | 1093 | tp->control.step_over_calls = STEP_OVER_ALL; |
c906108c | 1094 | |
95e54da7 | 1095 | tp->step_multi = (count > 1); |
a493e3e2 | 1096 | proceed ((CORE_ADDR) -1, GDB_SIGNAL_DEFAULT, 1); |
bfec99b2 | 1097 | |
37d94800 PA |
1098 | /* For async targets, register a continuation to do any |
1099 | additional steps. For sync targets, the caller will handle | |
1100 | further stepping. */ | |
1101 | if (target_can_async_p ()) | |
1102 | { | |
1103 | struct step_1_continuation_args *args; | |
1104 | ||
1105 | args = xmalloc (sizeof (*args)); | |
1106 | args->skip_subroutines = skip_subroutines; | |
1107 | args->single_inst = single_inst; | |
1108 | args->count = count; | |
1109 | args->thread = thread; | |
1110 | ||
1111 | add_intermediate_continuation (tp, step_1_continuation, args, xfree); | |
1112 | } | |
c906108c | 1113 | } |
c906108c | 1114 | } |
c2d11a7d | 1115 | |
c906108c SS |
1116 | \f |
1117 | /* Continue program at specified address. */ | |
1118 | ||
1119 | static void | |
fba45db2 | 1120 | jump_command (char *arg, int from_tty) |
c906108c | 1121 | { |
5af949e3 | 1122 | struct gdbarch *gdbarch = get_current_arch (); |
52f0bd74 | 1123 | CORE_ADDR addr; |
c906108c SS |
1124 | struct symtabs_and_lines sals; |
1125 | struct symtab_and_line sal; | |
1126 | struct symbol *fn; | |
1127 | struct symbol *sfn; | |
43ff13b4 | 1128 | int async_exec = 0; |
c5aa993b | 1129 | |
c906108c | 1130 | ERROR_NO_INFERIOR; |
573cda03 | 1131 | ensure_not_tfind_mode (); |
d729566a | 1132 | ensure_valid_thread (); |
94cc34af | 1133 | ensure_not_running (); |
c906108c | 1134 | |
1777feb0 | 1135 | /* Find out whether we must run in the background. */ |
43ff13b4 JM |
1136 | if (arg != NULL) |
1137 | async_exec = strip_bg_char (&arg); | |
1138 | ||
1139 | /* If we must run in the background, but the target can't do it, | |
1777feb0 | 1140 | error out. */ |
362646f5 | 1141 | if (async_exec && !target_can_async_p ()) |
8a3fe4f8 | 1142 | error (_("Asynchronous execution not supported on this target.")); |
43ff13b4 | 1143 | |
c906108c | 1144 | if (!arg) |
e2e0b3e5 | 1145 | error_no_arg (_("starting address")); |
c906108c | 1146 | |
39cf75f7 | 1147 | sals = decode_line_with_last_displayed (arg, DECODE_LINE_FUNFIRSTLINE); |
c906108c SS |
1148 | if (sals.nelts != 1) |
1149 | { | |
8a3fe4f8 | 1150 | error (_("Unreasonable jump request")); |
c906108c SS |
1151 | } |
1152 | ||
1153 | sal = sals.sals[0]; | |
b8c9b27d | 1154 | xfree (sals.sals); |
c906108c SS |
1155 | |
1156 | if (sal.symtab == 0 && sal.pc == 0) | |
8a3fe4f8 | 1157 | error (_("No source file has been specified.")); |
c906108c | 1158 | |
1777feb0 | 1159 | resolve_sal_pc (&sal); /* May error out. */ |
c906108c | 1160 | |
1777feb0 | 1161 | /* See if we are trying to jump to another function. */ |
c906108c SS |
1162 | fn = get_frame_function (get_current_frame ()); |
1163 | sfn = find_pc_function (sal.pc); | |
1164 | if (fn != NULL && sfn != fn) | |
1165 | { | |
9e2f0ad4 | 1166 | if (!query (_("Line %d is not in `%s'. Jump anyway? "), sal.line, |
de5ad195 | 1167 | SYMBOL_PRINT_NAME (fn))) |
c906108c | 1168 | { |
8a3fe4f8 | 1169 | error (_("Not confirmed.")); |
c906108c SS |
1170 | /* NOTREACHED */ |
1171 | } | |
1172 | } | |
1173 | ||
c5aa993b | 1174 | if (sfn != NULL) |
c906108c SS |
1175 | { |
1176 | fixup_symbol_section (sfn, 0); | |
714835d5 UW |
1177 | if (section_is_overlay (SYMBOL_OBJ_SECTION (sfn)) && |
1178 | !section_is_mapped (SYMBOL_OBJ_SECTION (sfn))) | |
c906108c | 1179 | { |
3e43a32a MS |
1180 | if (!query (_("WARNING!!! Destination is in " |
1181 | "unmapped overlay! Jump anyway? "))) | |
c906108c | 1182 | { |
8a3fe4f8 | 1183 | error (_("Not confirmed.")); |
c906108c SS |
1184 | /* NOTREACHED */ |
1185 | } | |
1186 | } | |
1187 | } | |
1188 | ||
c906108c SS |
1189 | addr = sal.pc; |
1190 | ||
1191 | if (from_tty) | |
1192 | { | |
a3f17187 | 1193 | printf_filtered (_("Continuing at ")); |
5af949e3 | 1194 | fputs_filtered (paddress (gdbarch, addr), gdb_stdout); |
c906108c SS |
1195 | printf_filtered (".\n"); |
1196 | } | |
1197 | ||
89113898 | 1198 | /* If we are not asked to run in the bg, then prepare to run in the |
1777feb0 | 1199 | foreground, synchronously. */ |
89113898 PA |
1200 | if (!async_exec && target_can_async_p ()) |
1201 | { | |
1777feb0 | 1202 | /* Simulate synchronous execution. */ |
89113898 PA |
1203 | async_disable_stdin (); |
1204 | } | |
1205 | ||
c906108c | 1206 | clear_proceed_status (); |
a493e3e2 | 1207 | proceed (addr, GDB_SIGNAL_0, 0); |
c906108c | 1208 | } |
c906108c | 1209 | \f |
c5aa993b | 1210 | |
1777feb0 | 1211 | /* Go to line or address in current procedure. */ |
c906108c | 1212 | static void |
fba45db2 | 1213 | go_command (char *line_no, int from_tty) |
c906108c | 1214 | { |
c5aa993b | 1215 | if (line_no == (char *) NULL || !*line_no) |
f42429a6 | 1216 | printf_filtered (_("Usage: go <location>\n")); |
c906108c SS |
1217 | else |
1218 | { | |
b83266a0 SS |
1219 | tbreak_command (line_no, from_tty); |
1220 | jump_command (line_no, from_tty); | |
c906108c SS |
1221 | } |
1222 | } | |
c906108c | 1223 | \f |
c5aa993b | 1224 | |
c906108c SS |
1225 | /* Continue program giving it specified signal. */ |
1226 | ||
1227 | static void | |
fba45db2 | 1228 | signal_command (char *signum_exp, int from_tty) |
c906108c | 1229 | { |
2ea28649 | 1230 | enum gdb_signal oursig; |
32c1e744 | 1231 | int async_exec = 0; |
c906108c SS |
1232 | |
1233 | dont_repeat (); /* Too dangerous. */ | |
1234 | ERROR_NO_INFERIOR; | |
573cda03 | 1235 | ensure_not_tfind_mode (); |
d729566a | 1236 | ensure_valid_thread (); |
94cc34af | 1237 | ensure_not_running (); |
c906108c | 1238 | |
32c1e744 VP |
1239 | /* Find out whether we must run in the background. */ |
1240 | if (signum_exp != NULL) | |
1241 | async_exec = strip_bg_char (&signum_exp); | |
1242 | ||
1243 | /* If we must run in the background, but the target can't do it, | |
1244 | error out. */ | |
1245 | if (async_exec && !target_can_async_p ()) | |
1246 | error (_("Asynchronous execution not supported on this target.")); | |
1247 | ||
1248 | /* If we are not asked to run in the bg, then prepare to run in the | |
1249 | foreground, synchronously. */ | |
1250 | if (!async_exec && target_can_async_p ()) | |
1251 | { | |
1252 | /* Simulate synchronous execution. */ | |
1253 | async_disable_stdin (); | |
1254 | } | |
1255 | ||
c906108c | 1256 | if (!signum_exp) |
e2e0b3e5 | 1257 | error_no_arg (_("signal number")); |
c906108c SS |
1258 | |
1259 | /* It would be even slicker to make signal names be valid expressions, | |
1260 | (the type could be "enum $signal" or some such), then the user could | |
1261 | assign them to convenience variables. */ | |
2ea28649 | 1262 | oursig = gdb_signal_from_name (signum_exp); |
c906108c | 1263 | |
a493e3e2 | 1264 | if (oursig == GDB_SIGNAL_UNKNOWN) |
c906108c SS |
1265 | { |
1266 | /* No, try numeric. */ | |
bb518678 | 1267 | int num = parse_and_eval_long (signum_exp); |
c906108c SS |
1268 | |
1269 | if (num == 0) | |
a493e3e2 | 1270 | oursig = GDB_SIGNAL_0; |
c906108c | 1271 | else |
2ea28649 | 1272 | oursig = gdb_signal_from_command (num); |
c906108c SS |
1273 | } |
1274 | ||
1275 | if (from_tty) | |
1276 | { | |
a493e3e2 | 1277 | if (oursig == GDB_SIGNAL_0) |
a3f17187 | 1278 | printf_filtered (_("Continuing with no signal.\n")); |
c906108c | 1279 | else |
a3f17187 | 1280 | printf_filtered (_("Continuing with signal %s.\n"), |
2ea28649 | 1281 | gdb_signal_to_name (oursig)); |
c906108c SS |
1282 | } |
1283 | ||
1284 | clear_proceed_status (); | |
a12cc160 | 1285 | proceed ((CORE_ADDR) -1, oursig, 0); |
c906108c SS |
1286 | } |
1287 | ||
fa4cd53f PA |
1288 | /* Continuation args to be passed to the "until" command |
1289 | continuation. */ | |
1290 | struct until_next_continuation_args | |
1291 | { | |
1292 | /* The thread that was current when the command was executed. */ | |
1293 | int thread; | |
1294 | }; | |
1295 | ||
186c406b TT |
1296 | /* A continuation callback for until_next_command. */ |
1297 | ||
1298 | static void | |
fa4cd53f | 1299 | until_next_continuation (void *arg, int err) |
186c406b | 1300 | { |
fa4cd53f | 1301 | struct until_next_continuation_args *a = arg; |
186c406b | 1302 | |
fa4cd53f | 1303 | delete_longjmp_breakpoint (a->thread); |
186c406b TT |
1304 | } |
1305 | ||
c906108c SS |
1306 | /* Proceed until we reach a different source line with pc greater than |
1307 | our current one or exit the function. We skip calls in both cases. | |
1308 | ||
1309 | Note that eventually this command should probably be changed so | |
1310 | that only source lines are printed out when we hit the breakpoint | |
1311 | we set. This may involve changes to wait_for_inferior and the | |
1312 | proceed status code. */ | |
1313 | ||
c906108c | 1314 | static void |
fba45db2 | 1315 | until_next_command (int from_tty) |
c906108c SS |
1316 | { |
1317 | struct frame_info *frame; | |
1318 | CORE_ADDR pc; | |
1319 | struct symbol *func; | |
1320 | struct symtab_and_line sal; | |
4e1c45ea | 1321 | struct thread_info *tp = inferior_thread (); |
186c406b TT |
1322 | int thread = tp->num; |
1323 | struct cleanup *old_chain; | |
c5aa993b | 1324 | |
c906108c | 1325 | clear_proceed_status (); |
edb3359d | 1326 | set_step_frame (); |
c906108c SS |
1327 | |
1328 | frame = get_current_frame (); | |
1329 | ||
1330 | /* Step until either exited from this function or greater | |
1331 | than the current line (if in symbolic section) or pc (if | |
1777feb0 | 1332 | not). */ |
c906108c | 1333 | |
1c7819ef | 1334 | pc = get_frame_pc (frame); |
c906108c | 1335 | func = find_pc_function (pc); |
c5aa993b | 1336 | |
c906108c SS |
1337 | if (!func) |
1338 | { | |
1339 | struct minimal_symbol *msymbol = lookup_minimal_symbol_by_pc (pc); | |
c5aa993b | 1340 | |
c906108c | 1341 | if (msymbol == NULL) |
8a3fe4f8 | 1342 | error (_("Execution is not within a known function.")); |
c5aa993b | 1343 | |
16c381f0 JK |
1344 | tp->control.step_range_start = SYMBOL_VALUE_ADDRESS (msymbol); |
1345 | tp->control.step_range_end = pc; | |
c906108c SS |
1346 | } |
1347 | else | |
1348 | { | |
1349 | sal = find_pc_line (pc, 0); | |
c5aa993b | 1350 | |
16c381f0 JK |
1351 | tp->control.step_range_start = BLOCK_START (SYMBOL_BLOCK_VALUE (func)); |
1352 | tp->control.step_range_end = sal.end; | |
c906108c | 1353 | } |
c5aa993b | 1354 | |
16c381f0 | 1355 | tp->control.step_over_calls = STEP_OVER_ALL; |
c906108c | 1356 | |
af679fd0 | 1357 | tp->step_multi = 0; /* Only one call to proceed */ |
c5aa993b | 1358 | |
186c406b TT |
1359 | set_longjmp_breakpoint (tp, get_frame_id (frame)); |
1360 | old_chain = make_cleanup (delete_longjmp_breakpoint_cleanup, &thread); | |
1361 | ||
a493e3e2 | 1362 | proceed ((CORE_ADDR) -1, GDB_SIGNAL_DEFAULT, 1); |
186c406b TT |
1363 | |
1364 | if (target_can_async_p () && is_running (inferior_ptid)) | |
1365 | { | |
fa4cd53f PA |
1366 | struct until_next_continuation_args *cont_args; |
1367 | ||
186c406b | 1368 | discard_cleanups (old_chain); |
fa4cd53f PA |
1369 | cont_args = XNEW (struct until_next_continuation_args); |
1370 | cont_args->thread = inferior_thread ()->num; | |
1371 | ||
1372 | add_continuation (tp, until_next_continuation, cont_args, xfree); | |
186c406b TT |
1373 | } |
1374 | else | |
1375 | do_cleanups (old_chain); | |
c906108c SS |
1376 | } |
1377 | ||
c5aa993b | 1378 | static void |
fba45db2 | 1379 | until_command (char *arg, int from_tty) |
c906108c | 1380 | { |
43ff13b4 JM |
1381 | int async_exec = 0; |
1382 | ||
4247603b | 1383 | ERROR_NO_INFERIOR; |
573cda03 | 1384 | ensure_not_tfind_mode (); |
4247603b PA |
1385 | ensure_valid_thread (); |
1386 | ensure_not_running (); | |
573cda03 | 1387 | |
1777feb0 | 1388 | /* Find out whether we must run in the background. */ |
43ff13b4 JM |
1389 | if (arg != NULL) |
1390 | async_exec = strip_bg_char (&arg); | |
1391 | ||
1392 | /* If we must run in the background, but the target can't do it, | |
1777feb0 | 1393 | error out. */ |
362646f5 | 1394 | if (async_exec && !target_can_async_p ()) |
8a3fe4f8 | 1395 | error (_("Asynchronous execution not supported on this target.")); |
43ff13b4 JM |
1396 | |
1397 | /* If we are not asked to run in the bg, then prepare to run in the | |
1777feb0 | 1398 | foreground, synchronously. */ |
362646f5 | 1399 | if (!async_exec && target_can_async_p ()) |
c5aa993b | 1400 | { |
1777feb0 | 1401 | /* Simulate synchronous execution. */ |
6426a772 | 1402 | async_disable_stdin (); |
43ff13b4 JM |
1403 | } |
1404 | ||
c906108c | 1405 | if (arg) |
ae66c1fc | 1406 | until_break_command (arg, from_tty, 0); |
c906108c SS |
1407 | else |
1408 | until_next_command (from_tty); | |
1409 | } | |
ae66c1fc EZ |
1410 | |
1411 | static void | |
1412 | advance_command (char *arg, int from_tty) | |
1413 | { | |
1414 | int async_exec = 0; | |
1415 | ||
4247603b | 1416 | ERROR_NO_INFERIOR; |
573cda03 | 1417 | ensure_not_tfind_mode (); |
4247603b PA |
1418 | ensure_valid_thread (); |
1419 | ensure_not_running (); | |
573cda03 | 1420 | |
ae66c1fc | 1421 | if (arg == NULL) |
e2e0b3e5 | 1422 | error_no_arg (_("a location")); |
ae66c1fc EZ |
1423 | |
1424 | /* Find out whether we must run in the background. */ | |
1425 | if (arg != NULL) | |
1426 | async_exec = strip_bg_char (&arg); | |
1427 | ||
1428 | /* If we must run in the background, but the target can't do it, | |
1429 | error out. */ | |
362646f5 | 1430 | if (async_exec && !target_can_async_p ()) |
8a3fe4f8 | 1431 | error (_("Asynchronous execution not supported on this target.")); |
ae66c1fc EZ |
1432 | |
1433 | /* If we are not asked to run in the bg, then prepare to run in the | |
1434 | foreground, synchronously. */ | |
362646f5 | 1435 | if (!async_exec && target_can_async_p ()) |
ae66c1fc EZ |
1436 | { |
1437 | /* Simulate synchronous execution. */ | |
1438 | async_disable_stdin (); | |
1439 | } | |
1440 | ||
1441 | until_break_command (arg, from_tty, 1); | |
1442 | } | |
c906108c | 1443 | \f |
cc72b2a2 KP |
1444 | /* Return the value of the result of a function at the end of a 'finish' |
1445 | command/BP. */ | |
f941662f | 1446 | |
cc72b2a2 | 1447 | struct value * |
6a3a010b | 1448 | get_return_value (struct value *function, struct type *value_type) |
11cf8741 | 1449 | { |
cc72b2a2 KP |
1450 | struct regcache *stop_regs = stop_registers; |
1451 | struct gdbarch *gdbarch; | |
44e5158b | 1452 | struct value *value; |
79a45e25 | 1453 | struct ui_out *uiout = current_uiout; |
cc72b2a2 KP |
1454 | struct cleanup *cleanup = make_cleanup (null_cleanup, NULL); |
1455 | ||
1456 | /* If stop_registers were not saved, use the current registers. */ | |
1457 | if (!stop_regs) | |
1458 | { | |
1459 | stop_regs = regcache_dup (get_current_regcache ()); | |
1460 | cleanup = make_cleanup_regcache_xfree (stop_regs); | |
1461 | } | |
1462 | ||
1463 | gdbarch = get_regcache_arch (stop_regs); | |
44e5158b | 1464 | |
181fc57c | 1465 | CHECK_TYPEDEF (value_type); |
44e5158b | 1466 | gdb_assert (TYPE_CODE (value_type) != TYPE_CODE_VOID); |
11cf8741 | 1467 | |
92ad9cd9 AC |
1468 | /* FIXME: 2003-09-27: When returning from a nested inferior function |
1469 | call, it's possible (with no help from the architecture vector) | |
1470 | to locate and return/print a "struct return" value. This is just | |
7a9dd1b2 | 1471 | a more complicated case of what is already being done in the |
92ad9cd9 AC |
1472 | inferior function call code. In fact, when inferior function |
1473 | calls are made async, this will likely be made the norm. */ | |
31db7b6c | 1474 | |
6a3a010b | 1475 | switch (gdbarch_return_value (gdbarch, function, value_type, |
c055b101 | 1476 | NULL, NULL, NULL)) |
44e5158b | 1477 | { |
750eb019 AC |
1478 | case RETURN_VALUE_REGISTER_CONVENTION: |
1479 | case RETURN_VALUE_ABI_RETURNS_ADDRESS: | |
181fc57c | 1480 | case RETURN_VALUE_ABI_PRESERVES_ADDRESS: |
44e5158b | 1481 | value = allocate_value (value_type); |
6a3a010b | 1482 | gdbarch_return_value (gdbarch, function, value_type, stop_regs, |
990a07ab | 1483 | value_contents_raw (value), NULL); |
750eb019 AC |
1484 | break; |
1485 | case RETURN_VALUE_STRUCT_CONVENTION: | |
1486 | value = NULL; | |
1487 | break; | |
1488 | default: | |
e2e0b3e5 | 1489 | internal_error (__FILE__, __LINE__, _("bad switch")); |
44e5158b | 1490 | } |
bb472c1e | 1491 | |
cc72b2a2 KP |
1492 | do_cleanups (cleanup); |
1493 | ||
1494 | return value; | |
1495 | } | |
1496 | ||
1497 | /* Print the result of a function at the end of a 'finish' command. */ | |
1498 | ||
1499 | static void | |
6a3a010b | 1500 | print_return_value (struct value *function, struct type *value_type) |
cc72b2a2 | 1501 | { |
6a3a010b | 1502 | struct value *value = get_return_value (function, value_type); |
cc72b2a2 KP |
1503 | struct ui_out *uiout = current_uiout; |
1504 | ||
31db7b6c MK |
1505 | if (value) |
1506 | { | |
79a45b7d | 1507 | struct value_print_options opts; |
f99d8bf4 PA |
1508 | struct ui_file *stb; |
1509 | struct cleanup *old_chain; | |
79a45b7d | 1510 | |
31db7b6c | 1511 | /* Print it. */ |
f99d8bf4 PA |
1512 | stb = mem_fileopen (); |
1513 | old_chain = make_cleanup_ui_file_delete (stb); | |
31db7b6c MK |
1514 | ui_out_text (uiout, "Value returned is "); |
1515 | ui_out_field_fmt (uiout, "gdb-result-var", "$%d", | |
1516 | record_latest_value (value)); | |
1517 | ui_out_text (uiout, " = "); | |
79a45b7d | 1518 | get_raw_print_options (&opts); |
f99d8bf4 | 1519 | value_print (value, stb, &opts); |
31db7b6c MK |
1520 | ui_out_field_stream (uiout, "return-value", stb); |
1521 | ui_out_text (uiout, "\n"); | |
1d751abe | 1522 | do_cleanups (old_chain); |
31db7b6c MK |
1523 | } |
1524 | else | |
1525 | { | |
1526 | ui_out_text (uiout, "Value returned has type: "); | |
1d751abe PA |
1527 | ui_out_field_string (uiout, "return-type", TYPE_NAME (value_type)); |
1528 | ui_out_text (uiout, "."); | |
1529 | ui_out_text (uiout, " Cannot determine contents\n"); | |
31db7b6c | 1530 | } |
11cf8741 JM |
1531 | } |
1532 | ||
43ff13b4 | 1533 | /* Stuff that needs to be done by the finish command after the target |
f941662f MK |
1534 | has stopped. In asynchronous mode, we wait for the target to stop |
1535 | in the call to poll or select in the event loop, so it is | |
1536 | impossible to do all the stuff as part of the finish_command | |
1537 | function itself. The only chance we have to complete this command | |
1538 | is in fetch_inferior_event, which is called by the event loop as | |
fa4cd53f | 1539 | soon as it detects that the target has stopped. */ |
f941662f | 1540 | |
bfec99b2 | 1541 | struct finish_command_continuation_args |
43ff13b4 | 1542 | { |
fa4cd53f PA |
1543 | /* The thread that as current when the command was executed. */ |
1544 | int thread; | |
43ff13b4 | 1545 | struct breakpoint *breakpoint; |
bfec99b2 PA |
1546 | struct symbol *function; |
1547 | }; | |
c5aa993b | 1548 | |
bfec99b2 | 1549 | static void |
fa4cd53f | 1550 | finish_command_continuation (void *arg, int err) |
bfec99b2 PA |
1551 | { |
1552 | struct finish_command_continuation_args *a = arg; | |
347bddb7 | 1553 | |
fa4cd53f | 1554 | if (!err) |
43ff13b4 | 1555 | { |
fa4cd53f PA |
1556 | struct thread_info *tp = NULL; |
1557 | bpstat bs = NULL; | |
bfec99b2 | 1558 | |
fa4cd53f PA |
1559 | if (!ptid_equal (inferior_ptid, null_ptid) |
1560 | && target_has_execution | |
1561 | && is_stopped (inferior_ptid)) | |
1562 | { | |
1563 | tp = inferior_thread (); | |
1564 | bs = tp->control.stop_bpstat; | |
1565 | } | |
f5871ec0 | 1566 | |
fa4cd53f PA |
1567 | if (bpstat_find_breakpoint (bs, a->breakpoint) != NULL |
1568 | && a->function != NULL) | |
40c549d6 | 1569 | { |
fa4cd53f PA |
1570 | struct type *value_type; |
1571 | ||
1572 | value_type = TYPE_TARGET_TYPE (SYMBOL_TYPE (a->function)); | |
1573 | if (!value_type) | |
1574 | internal_error (__FILE__, __LINE__, | |
1575 | _("finish_command: function has no target type")); | |
40c549d6 | 1576 | |
fa4cd53f | 1577 | if (TYPE_CODE (value_type) != TYPE_CODE_VOID) |
40c549d6 | 1578 | { |
fa4cd53f | 1579 | volatile struct gdb_exception ex; |
6a3a010b | 1580 | struct value *func; |
fa4cd53f | 1581 | |
6a3a010b | 1582 | func = read_var_value (a->function, get_current_frame ()); |
fa4cd53f PA |
1583 | TRY_CATCH (ex, RETURN_MASK_ALL) |
1584 | { | |
1585 | /* print_return_value can throw an exception in some | |
1586 | circumstances. We need to catch this so that we still | |
1587 | delete the breakpoint. */ | |
6a3a010b | 1588 | print_return_value (func, value_type); |
fa4cd53f PA |
1589 | } |
1590 | if (ex.reason < 0) | |
1591 | exception_print (gdb_stdout, ex); | |
40c549d6 | 1592 | } |
40c549d6 | 1593 | } |
fa4cd53f PA |
1594 | |
1595 | /* We suppress normal call of normal_stop observer and do it | |
1596 | here so that the *stopped notification includes the return | |
1597 | value. */ | |
1598 | if (bs != NULL && tp->control.proceed_to_finish) | |
1599 | observer_notify_normal_stop (bs, 1 /* print frame */); | |
43ff13b4 | 1600 | } |
f941662f | 1601 | |
bfec99b2 | 1602 | delete_breakpoint (a->breakpoint); |
fa4cd53f | 1603 | delete_longjmp_breakpoint (a->thread); |
43ff13b4 JM |
1604 | } |
1605 | ||
604ead4a PA |
1606 | static void |
1607 | finish_command_continuation_free_arg (void *arg) | |
1608 | { | |
604ead4a PA |
1609 | xfree (arg); |
1610 | } | |
1611 | ||
b2175913 MS |
1612 | /* finish_backward -- helper function for finish_command. */ |
1613 | ||
1614 | static void | |
1615 | finish_backward (struct symbol *function) | |
1616 | { | |
1617 | struct symtab_and_line sal; | |
1618 | struct thread_info *tp = inferior_thread (); | |
1c7819ef | 1619 | CORE_ADDR pc; |
b2175913 | 1620 | CORE_ADDR func_addr; |
b2175913 | 1621 | |
1c7819ef PA |
1622 | pc = get_frame_pc (get_current_frame ()); |
1623 | ||
1624 | if (find_pc_partial_function (pc, NULL, &func_addr, NULL) == 0) | |
b2175913 MS |
1625 | internal_error (__FILE__, __LINE__, |
1626 | _("Finish: couldn't find function.")); | |
1627 | ||
1628 | sal = find_pc_line (func_addr, 0); | |
1629 | ||
9da8c2a0 | 1630 | tp->control.proceed_to_finish = 1; |
b2175913 MS |
1631 | /* Special case: if we're sitting at the function entry point, |
1632 | then all we need to do is take a reverse singlestep. We | |
1633 | don't need to set a breakpoint, and indeed it would do us | |
1634 | no good to do so. | |
1635 | ||
1636 | Note that this can only happen at frame #0, since there's | |
1637 | no way that a function up the stack can have a return address | |
1638 | that's equal to its entry point. */ | |
1639 | ||
1c7819ef | 1640 | if (sal.pc != pc) |
b2175913 | 1641 | { |
a6d9a66e UW |
1642 | struct frame_info *frame = get_selected_frame (NULL); |
1643 | struct gdbarch *gdbarch = get_frame_arch (frame); | |
9da8c2a0 PA |
1644 | struct symtab_and_line sr_sal; |
1645 | ||
1646 | /* Set a step-resume at the function's entry point. Once that's | |
1647 | hit, we'll do one more step backwards. */ | |
1648 | init_sal (&sr_sal); | |
1649 | sr_sal.pc = sal.pc; | |
1650 | sr_sal.pspace = get_frame_program_space (frame); | |
1651 | insert_step_resume_breakpoint_at_sal (gdbarch, | |
1652 | sr_sal, null_frame_id); | |
a6d9a66e | 1653 | |
a493e3e2 | 1654 | proceed ((CORE_ADDR) -1, GDB_SIGNAL_DEFAULT, 0); |
b2175913 MS |
1655 | } |
1656 | else | |
b2175913 | 1657 | { |
9da8c2a0 PA |
1658 | /* We're almost there -- we just need to back up by one more |
1659 | single-step. */ | |
16c381f0 | 1660 | tp->control.step_range_start = tp->control.step_range_end = 1; |
a493e3e2 | 1661 | proceed ((CORE_ADDR) -1, GDB_SIGNAL_DEFAULT, 1); |
b2175913 | 1662 | } |
b2175913 MS |
1663 | } |
1664 | ||
1665 | /* finish_forward -- helper function for finish_command. */ | |
1666 | ||
1667 | static void | |
1668 | finish_forward (struct symbol *function, struct frame_info *frame) | |
1669 | { | |
def166f6 | 1670 | struct frame_id frame_id = get_frame_id (frame); |
a6d9a66e | 1671 | struct gdbarch *gdbarch = get_frame_arch (frame); |
b2175913 MS |
1672 | struct symtab_and_line sal; |
1673 | struct thread_info *tp = inferior_thread (); | |
1674 | struct breakpoint *breakpoint; | |
1675 | struct cleanup *old_chain; | |
1676 | struct finish_command_continuation_args *cargs; | |
186c406b | 1677 | int thread = tp->num; |
b2175913 MS |
1678 | |
1679 | sal = find_pc_line (get_frame_pc (frame), 0); | |
1680 | sal.pc = get_frame_pc (frame); | |
1681 | ||
a6d9a66e UW |
1682 | breakpoint = set_momentary_breakpoint (gdbarch, sal, |
1683 | get_stack_frame_id (frame), | |
b2175913 MS |
1684 | bp_finish); |
1685 | ||
c70a6932 JK |
1686 | /* set_momentary_breakpoint invalidates FRAME. */ |
1687 | frame = NULL; | |
1688 | ||
b2175913 MS |
1689 | old_chain = make_cleanup_delete_breakpoint (breakpoint); |
1690 | ||
def166f6 | 1691 | set_longjmp_breakpoint (tp, frame_id); |
186c406b TT |
1692 | make_cleanup (delete_longjmp_breakpoint_cleanup, &thread); |
1693 | ||
16c381f0 JK |
1694 | /* We want stop_registers, please... */ |
1695 | tp->control.proceed_to_finish = 1; | |
b2175913 MS |
1696 | cargs = xmalloc (sizeof (*cargs)); |
1697 | ||
fa4cd53f | 1698 | cargs->thread = thread; |
b2175913 MS |
1699 | cargs->breakpoint = breakpoint; |
1700 | cargs->function = function; | |
1701 | add_continuation (tp, finish_command_continuation, cargs, | |
1702 | finish_command_continuation_free_arg); | |
a493e3e2 | 1703 | proceed ((CORE_ADDR) -1, GDB_SIGNAL_DEFAULT, 0); |
b2175913 MS |
1704 | |
1705 | discard_cleanups (old_chain); | |
1706 | if (!target_can_async_p ()) | |
fa4cd53f | 1707 | do_all_continuations (0); |
b2175913 MS |
1708 | } |
1709 | ||
f941662f MK |
1710 | /* "finish": Set a temporary breakpoint at the place the selected |
1711 | frame will return to, then continue. */ | |
c906108c SS |
1712 | |
1713 | static void | |
fba45db2 | 1714 | finish_command (char *arg, int from_tty) |
c906108c | 1715 | { |
52f0bd74 AC |
1716 | struct frame_info *frame; |
1717 | struct symbol *function; | |
43ff13b4 JM |
1718 | |
1719 | int async_exec = 0; | |
1720 | ||
4247603b | 1721 | ERROR_NO_INFERIOR; |
573cda03 | 1722 | ensure_not_tfind_mode (); |
4247603b PA |
1723 | ensure_valid_thread (); |
1724 | ensure_not_running (); | |
573cda03 | 1725 | |
f941662f | 1726 | /* Find out whether we must run in the background. */ |
43ff13b4 JM |
1727 | if (arg != NULL) |
1728 | async_exec = strip_bg_char (&arg); | |
1729 | ||
1730 | /* If we must run in the background, but the target can't do it, | |
f941662f | 1731 | error out. */ |
362646f5 | 1732 | if (async_exec && !target_can_async_p ()) |
8a3fe4f8 | 1733 | error (_("Asynchronous execution not supported on this target.")); |
43ff13b4 JM |
1734 | |
1735 | /* If we are not asked to run in the bg, then prepare to run in the | |
f941662f | 1736 | foreground, synchronously. */ |
362646f5 | 1737 | if (!async_exec && target_can_async_p ()) |
c5aa993b | 1738 | { |
f941662f | 1739 | /* Simulate synchronous execution. */ |
6426a772 | 1740 | async_disable_stdin (); |
43ff13b4 | 1741 | } |
c906108c SS |
1742 | |
1743 | if (arg) | |
8a3fe4f8 | 1744 | error (_("The \"finish\" command does not take any arguments.")); |
c906108c | 1745 | |
206415a3 | 1746 | frame = get_prev_frame (get_selected_frame (_("No selected frame."))); |
c906108c | 1747 | if (frame == 0) |
8a3fe4f8 | 1748 | error (_("\"finish\" not meaningful in the outermost frame.")); |
c906108c SS |
1749 | |
1750 | clear_proceed_status (); | |
1751 | ||
edb3359d DJ |
1752 | /* Finishing from an inline frame is completely different. We don't |
1753 | try to show the "return value" - no way to locate it. So we do | |
1754 | not need a completion. */ | |
1755 | if (get_frame_type (get_selected_frame (_("No selected frame."))) | |
1756 | == INLINE_FRAME) | |
1757 | { | |
1758 | /* Claim we are stepping in the calling frame. An empty step | |
1759 | range means that we will stop once we aren't in a function | |
1760 | called by that frame. We don't use the magic "1" value for | |
1761 | step_range_end, because then infrun will think this is nexti, | |
1762 | and not step over the rest of this inlined function call. */ | |
1763 | struct thread_info *tp = inferior_thread (); | |
1764 | struct symtab_and_line empty_sal; | |
abbb1732 | 1765 | |
edb3359d DJ |
1766 | init_sal (&empty_sal); |
1767 | set_step_info (frame, empty_sal); | |
16c381f0 JK |
1768 | tp->control.step_range_start = get_frame_pc (frame); |
1769 | tp->control.step_range_end = tp->control.step_range_start; | |
1770 | tp->control.step_over_calls = STEP_OVER_ALL; | |
edb3359d DJ |
1771 | |
1772 | /* Print info on the selected frame, including level number but not | |
1773 | source. */ | |
1774 | if (from_tty) | |
1775 | { | |
1776 | printf_filtered (_("Run till exit from ")); | |
1777 | print_stack_frame (get_selected_frame (NULL), 1, LOCATION); | |
1778 | } | |
1779 | ||
a493e3e2 | 1780 | proceed ((CORE_ADDR) -1, GDB_SIGNAL_DEFAULT, 1); |
edb3359d DJ |
1781 | return; |
1782 | } | |
1783 | ||
1ab3b62c JK |
1784 | /* Ignore TAILCALL_FRAME type frames, they were executed already before |
1785 | entering THISFRAME. */ | |
1786 | while (get_frame_type (frame) == TAILCALL_FRAME) | |
1787 | frame = get_prev_frame (frame); | |
1788 | ||
c906108c SS |
1789 | /* Find the function we will return from. */ |
1790 | ||
206415a3 | 1791 | function = find_pc_function (get_frame_pc (get_selected_frame (NULL))); |
c906108c | 1792 | |
f941662f MK |
1793 | /* Print info on the selected frame, including level number but not |
1794 | source. */ | |
c906108c SS |
1795 | if (from_tty) |
1796 | { | |
b2175913 MS |
1797 | if (execution_direction == EXEC_REVERSE) |
1798 | printf_filtered (_("Run back to call of ")); | |
1799 | else | |
1800 | printf_filtered (_("Run till exit from ")); | |
1801 | ||
b04f3ab4 | 1802 | print_stack_frame (get_selected_frame (NULL), 1, LOCATION); |
c906108c SS |
1803 | } |
1804 | ||
b2175913 MS |
1805 | if (execution_direction == EXEC_REVERSE) |
1806 | finish_backward (function); | |
1807 | else | |
1808 | finish_forward (function, frame); | |
c906108c SS |
1809 | } |
1810 | \f | |
f941662f | 1811 | |
c906108c | 1812 | static void |
fba45db2 | 1813 | program_info (char *args, int from_tty) |
c906108c | 1814 | { |
347bddb7 PA |
1815 | bpstat bs; |
1816 | int num, stat; | |
1817 | struct thread_info *tp; | |
1818 | ptid_t ptid; | |
c5aa993b | 1819 | |
c906108c SS |
1820 | if (!target_has_execution) |
1821 | { | |
a3f17187 | 1822 | printf_filtered (_("The program being debugged is not being run.\n")); |
c906108c SS |
1823 | return; |
1824 | } | |
1825 | ||
347bddb7 PA |
1826 | if (non_stop) |
1827 | ptid = inferior_ptid; | |
1828 | else | |
1829 | { | |
1830 | struct target_waitstatus ws; | |
abbb1732 | 1831 | |
347bddb7 PA |
1832 | get_last_target_status (&ptid, &ws); |
1833 | } | |
1834 | ||
1835 | if (ptid_equal (ptid, null_ptid) || is_exited (ptid)) | |
1836 | error (_("Invalid selected thread.")); | |
1837 | else if (is_running (ptid)) | |
1838 | error (_("Selected thread is running.")); | |
1839 | ||
e09875d4 | 1840 | tp = find_thread_ptid (ptid); |
16c381f0 | 1841 | bs = tp->control.stop_bpstat; |
347bddb7 PA |
1842 | stat = bpstat_num (&bs, &num); |
1843 | ||
c906108c | 1844 | target_files_info (); |
5af949e3 | 1845 | printf_filtered (_("Program stopped at %s.\n"), |
f5656ead | 1846 | paddress (target_gdbarch (), stop_pc)); |
16c381f0 | 1847 | if (tp->control.stop_step) |
a3f17187 | 1848 | printf_filtered (_("It stopped after being stepped.\n")); |
8671a17b | 1849 | else if (stat != 0) |
c906108c SS |
1850 | { |
1851 | /* There may be several breakpoints in the same place, so this | |
c5aa993b | 1852 | isn't as strange as it seems. */ |
8671a17b | 1853 | while (stat != 0) |
c906108c | 1854 | { |
8671a17b | 1855 | if (stat < 0) |
c906108c | 1856 | { |
3e43a32a MS |
1857 | printf_filtered (_("It stopped at a breakpoint " |
1858 | "that has since been deleted.\n")); | |
c906108c SS |
1859 | } |
1860 | else | |
a3f17187 | 1861 | printf_filtered (_("It stopped at breakpoint %d.\n"), num); |
8671a17b | 1862 | stat = bpstat_num (&bs, &num); |
c906108c SS |
1863 | } |
1864 | } | |
a493e3e2 | 1865 | else if (tp->suspend.stop_signal != GDB_SIGNAL_0) |
c906108c | 1866 | { |
a3f17187 | 1867 | printf_filtered (_("It stopped with signal %s, %s.\n"), |
2ea28649 PA |
1868 | gdb_signal_to_name (tp->suspend.stop_signal), |
1869 | gdb_signal_to_string (tp->suspend.stop_signal)); | |
c906108c SS |
1870 | } |
1871 | ||
1872 | if (!from_tty) | |
1873 | { | |
3e43a32a MS |
1874 | printf_filtered (_("Type \"info stack\" or \"info " |
1875 | "registers\" for more information.\n")); | |
c906108c SS |
1876 | } |
1877 | } | |
1878 | \f | |
1879 | static void | |
fba45db2 | 1880 | environment_info (char *var, int from_tty) |
c906108c SS |
1881 | { |
1882 | if (var) | |
1883 | { | |
3f81c18a | 1884 | char *val = get_in_environ (current_inferior ()->environment, var); |
abbb1732 | 1885 | |
c906108c SS |
1886 | if (val) |
1887 | { | |
1888 | puts_filtered (var); | |
1889 | puts_filtered (" = "); | |
1890 | puts_filtered (val); | |
1891 | puts_filtered ("\n"); | |
1892 | } | |
1893 | else | |
1894 | { | |
1895 | puts_filtered ("Environment variable \""); | |
1896 | puts_filtered (var); | |
1897 | puts_filtered ("\" not defined.\n"); | |
1898 | } | |
1899 | } | |
1900 | else | |
1901 | { | |
3f81c18a | 1902 | char **vector = environ_vector (current_inferior ()->environment); |
abbb1732 | 1903 | |
c906108c SS |
1904 | while (*vector) |
1905 | { | |
1906 | puts_filtered (*vector++); | |
1907 | puts_filtered ("\n"); | |
1908 | } | |
1909 | } | |
1910 | } | |
1911 | ||
1912 | static void | |
fba45db2 | 1913 | set_environment_command (char *arg, int from_tty) |
c906108c | 1914 | { |
52f0bd74 | 1915 | char *p, *val, *var; |
c906108c SS |
1916 | int nullset = 0; |
1917 | ||
1918 | if (arg == 0) | |
e2e0b3e5 | 1919 | error_no_arg (_("environment variable and value")); |
c906108c | 1920 | |
1777feb0 | 1921 | /* Find seperation between variable name and value. */ |
c906108c SS |
1922 | p = (char *) strchr (arg, '='); |
1923 | val = (char *) strchr (arg, ' '); | |
1924 | ||
1925 | if (p != 0 && val != 0) | |
1926 | { | |
1927 | /* We have both a space and an equals. If the space is before the | |
c5aa993b | 1928 | equals, walk forward over the spaces til we see a nonspace |
1777feb0 | 1929 | (possibly the equals). */ |
c906108c SS |
1930 | if (p > val) |
1931 | while (*val == ' ') | |
1932 | val++; | |
1933 | ||
1934 | /* Now if the = is after the char following the spaces, | |
c5aa993b | 1935 | take the char following the spaces. */ |
c906108c SS |
1936 | if (p > val) |
1937 | p = val - 1; | |
1938 | } | |
1939 | else if (val != 0 && p == 0) | |
1940 | p = val; | |
1941 | ||
1942 | if (p == arg) | |
e2e0b3e5 | 1943 | error_no_arg (_("environment variable to set")); |
c906108c SS |
1944 | |
1945 | if (p == 0 || p[1] == 0) | |
1946 | { | |
1947 | nullset = 1; | |
1948 | if (p == 0) | |
1777feb0 | 1949 | p = arg + strlen (arg); /* So that savestring below will work. */ |
c906108c SS |
1950 | } |
1951 | else | |
1952 | { | |
1777feb0 | 1953 | /* Not setting variable value to null. */ |
c906108c SS |
1954 | val = p + 1; |
1955 | while (*val == ' ' || *val == '\t') | |
1956 | val++; | |
1957 | } | |
1958 | ||
c5aa993b JM |
1959 | while (p != arg && (p[-1] == ' ' || p[-1] == '\t')) |
1960 | p--; | |
c906108c SS |
1961 | |
1962 | var = savestring (arg, p - arg); | |
1963 | if (nullset) | |
1964 | { | |
3e43a32a MS |
1965 | printf_filtered (_("Setting environment variable " |
1966 | "\"%s\" to null value.\n"), | |
a3f17187 | 1967 | var); |
3f81c18a | 1968 | set_in_environ (current_inferior ()->environment, var, ""); |
c906108c SS |
1969 | } |
1970 | else | |
3f81c18a | 1971 | set_in_environ (current_inferior ()->environment, var, val); |
b8c9b27d | 1972 | xfree (var); |
c906108c SS |
1973 | } |
1974 | ||
1975 | static void | |
fba45db2 | 1976 | unset_environment_command (char *var, int from_tty) |
c906108c SS |
1977 | { |
1978 | if (var == 0) | |
1979 | { | |
1980 | /* If there is no argument, delete all environment variables. | |
c5aa993b | 1981 | Ask for confirmation if reading from the terminal. */ |
e2e0b3e5 | 1982 | if (!from_tty || query (_("Delete all environment variables? "))) |
c906108c | 1983 | { |
3f81c18a VP |
1984 | free_environ (current_inferior ()->environment); |
1985 | current_inferior ()->environment = make_environ (); | |
c906108c SS |
1986 | } |
1987 | } | |
1988 | else | |
3f81c18a | 1989 | unset_in_environ (current_inferior ()->environment, var); |
c906108c SS |
1990 | } |
1991 | ||
1777feb0 | 1992 | /* Handle the execution path (PATH variable). */ |
c906108c SS |
1993 | |
1994 | static const char path_var_name[] = "PATH"; | |
1995 | ||
c906108c | 1996 | static void |
fba45db2 | 1997 | path_info (char *args, int from_tty) |
c906108c SS |
1998 | { |
1999 | puts_filtered ("Executable and object file path: "); | |
3e43a32a MS |
2000 | puts_filtered (get_in_environ (current_inferior ()->environment, |
2001 | path_var_name)); | |
c906108c SS |
2002 | puts_filtered ("\n"); |
2003 | } | |
2004 | ||
2005 | /* Add zero or more directories to the front of the execution path. */ | |
2006 | ||
2007 | static void | |
fba45db2 | 2008 | path_command (char *dirname, int from_tty) |
c906108c SS |
2009 | { |
2010 | char *exec_path; | |
2011 | char *env; | |
abbb1732 | 2012 | |
c906108c | 2013 | dont_repeat (); |
3f81c18a | 2014 | env = get_in_environ (current_inferior ()->environment, path_var_name); |
1777feb0 | 2015 | /* Can be null if path is not set. */ |
c906108c SS |
2016 | if (!env) |
2017 | env = ""; | |
4fcf66da | 2018 | exec_path = xstrdup (env); |
c906108c | 2019 | mod_path (dirname, &exec_path); |
3f81c18a | 2020 | set_in_environ (current_inferior ()->environment, path_var_name, exec_path); |
b8c9b27d | 2021 | xfree (exec_path); |
c906108c | 2022 | if (from_tty) |
c5aa993b | 2023 | path_info ((char *) NULL, from_tty); |
c906108c | 2024 | } |
c906108c | 2025 | \f |
c5aa993b | 2026 | |
1292279a PA |
2027 | /* Print out the register NAME with value VAL, to FILE, in the default |
2028 | fashion. */ | |
2029 | ||
2030 | static void | |
2031 | default_print_one_register_info (struct ui_file *file, | |
2032 | const char *name, | |
2033 | struct value *val) | |
2034 | { | |
2035 | struct type *regtype = value_type (val); | |
2036 | ||
2037 | fputs_filtered (name, file); | |
2038 | print_spaces_filtered (15 - strlen (name), file); | |
2039 | ||
2040 | if (!value_entirely_available (val)) | |
2041 | { | |
2042 | fprintf_filtered (file, "*value not available*\n"); | |
2043 | return; | |
2044 | } | |
2045 | ||
2046 | /* If virtual format is floating, print it that way, and in raw | |
2047 | hex. */ | |
2048 | if (TYPE_CODE (regtype) == TYPE_CODE_FLT | |
2049 | || TYPE_CODE (regtype) == TYPE_CODE_DECFLOAT) | |
2050 | { | |
2051 | int j; | |
2052 | struct value_print_options opts; | |
2053 | const gdb_byte *valaddr = value_contents_for_printing (val); | |
2054 | enum bfd_endian byte_order = gdbarch_byte_order (get_type_arch (regtype)); | |
2055 | ||
2056 | get_user_print_options (&opts); | |
2057 | opts.deref_ref = 1; | |
2058 | ||
2059 | val_print (regtype, | |
2060 | value_contents_for_printing (val), | |
2061 | value_embedded_offset (val), 0, | |
2062 | file, 0, val, &opts, current_language); | |
2063 | ||
2064 | fprintf_filtered (file, "\t(raw 0x"); | |
2065 | for (j = 0; j < TYPE_LENGTH (regtype); j++) | |
2066 | { | |
2067 | int idx; | |
2068 | ||
2069 | if (byte_order == BFD_ENDIAN_BIG) | |
2070 | idx = j; | |
2071 | else | |
2072 | idx = TYPE_LENGTH (regtype) - 1 - j; | |
2073 | fprintf_filtered (file, "%02x", (unsigned char) valaddr[idx]); | |
2074 | } | |
2075 | fprintf_filtered (file, ")"); | |
2076 | } | |
2077 | else | |
2078 | { | |
2079 | struct value_print_options opts; | |
2080 | ||
2081 | /* Print the register in hex. */ | |
2082 | get_formatted_print_options (&opts, 'x'); | |
2083 | opts.deref_ref = 1; | |
2084 | val_print (regtype, | |
2085 | value_contents_for_printing (val), | |
2086 | value_embedded_offset (val), 0, | |
2087 | file, 0, val, &opts, current_language); | |
2088 | /* If not a vector register, print it also according to its | |
2089 | natural format. */ | |
2090 | if (TYPE_VECTOR (regtype) == 0) | |
2091 | { | |
2092 | get_user_print_options (&opts); | |
2093 | opts.deref_ref = 1; | |
2094 | fprintf_filtered (file, "\t"); | |
2095 | val_print (regtype, | |
2096 | value_contents_for_printing (val), | |
2097 | value_embedded_offset (val), 0, | |
2098 | file, 0, val, &opts, current_language); | |
2099 | } | |
2100 | } | |
2101 | ||
2102 | fprintf_filtered (file, "\n"); | |
2103 | } | |
2104 | ||
1777feb0 | 2105 | /* Print out the machine register regnum. If regnum is -1, print all |
0ab7a791 AC |
2106 | registers (print_all == 1) or all non-float and non-vector |
2107 | registers (print_all == 0). | |
c906108c SS |
2108 | |
2109 | For most machines, having all_registers_info() print the | |
0ab7a791 AC |
2110 | register(s) one per line is good enough. If a different format is |
2111 | required, (eg, for MIPS or Pyramid 90x, which both have lots of | |
2112 | regs), or there is an existing convention for showing all the | |
2113 | registers, define the architecture method PRINT_REGISTERS_INFO to | |
2114 | provide that format. */ | |
c906108c | 2115 | |
666e11c5 | 2116 | void |
0ab7a791 AC |
2117 | default_print_registers_info (struct gdbarch *gdbarch, |
2118 | struct ui_file *file, | |
2119 | struct frame_info *frame, | |
2120 | int regnum, int print_all) | |
c906108c | 2121 | { |
0ab7a791 | 2122 | int i; |
a4bd449d UW |
2123 | const int numregs = gdbarch_num_regs (gdbarch) |
2124 | + gdbarch_num_pseudo_regs (gdbarch); | |
0ab7a791 | 2125 | |
c906108c SS |
2126 | for (i = 0; i < numregs; i++) |
2127 | { | |
29ec5263 PA |
2128 | struct type *regtype; |
2129 | struct value *val; | |
2130 | ||
4782dc19 AC |
2131 | /* Decide between printing all regs, non-float / vector regs, or |
2132 | specific reg. */ | |
c5aa993b JM |
2133 | if (regnum == -1) |
2134 | { | |
f9418c0f | 2135 | if (print_all) |
4782dc19 | 2136 | { |
f9418c0f | 2137 | if (!gdbarch_register_reggroup_p (gdbarch, i, all_reggroup)) |
4782dc19 | 2138 | continue; |
f9418c0f AC |
2139 | } |
2140 | else | |
2141 | { | |
2142 | if (!gdbarch_register_reggroup_p (gdbarch, i, general_reggroup)) | |
4782dc19 AC |
2143 | continue; |
2144 | } | |
c5aa993b JM |
2145 | } |
2146 | else | |
2147 | { | |
2148 | if (i != regnum) | |
2149 | continue; | |
2150 | } | |
c906108c SS |
2151 | |
2152 | /* If the register name is empty, it is undefined for this | |
c5aa993b | 2153 | processor, so don't display anything. */ |
a4bd449d UW |
2154 | if (gdbarch_register_name (gdbarch, i) == NULL |
2155 | || *(gdbarch_register_name (gdbarch, i)) == '\0') | |
c906108c SS |
2156 | continue; |
2157 | ||
29ec5263 PA |
2158 | regtype = register_type (gdbarch, i); |
2159 | val = allocate_value (regtype); | |
2160 | ||
c906108c | 2161 | /* Get the data in raw format. */ |
ca9d61b9 | 2162 | if (! deprecated_frame_register_read (frame, i, value_contents_raw (val))) |
1292279a | 2163 | mark_value_bytes_unavailable (val, 0, TYPE_LENGTH (value_type (val))); |
c906108c | 2164 | |
1292279a PA |
2165 | default_print_one_register_info (file, |
2166 | gdbarch_register_name (gdbarch, i), | |
2167 | val); | |
c906108c SS |
2168 | } |
2169 | } | |
c906108c | 2170 | |
c906108c | 2171 | void |
fba45db2 | 2172 | registers_info (char *addr_exp, int fpregs) |
c906108c | 2173 | { |
206415a3 | 2174 | struct frame_info *frame; |
a4bd449d | 2175 | struct gdbarch *gdbarch; |
c906108c SS |
2176 | |
2177 | if (!target_has_registers) | |
8a3fe4f8 | 2178 | error (_("The program has no registers now.")); |
206415a3 | 2179 | frame = get_selected_frame (NULL); |
a4bd449d | 2180 | gdbarch = get_frame_arch (frame); |
c906108c SS |
2181 | |
2182 | if (!addr_exp) | |
2183 | { | |
a4bd449d | 2184 | gdbarch_print_registers_info (gdbarch, gdb_stdout, |
206415a3 | 2185 | frame, -1, fpregs); |
c906108c SS |
2186 | return; |
2187 | } | |
2188 | ||
f9418c0f | 2189 | while (*addr_exp != '\0') |
c5aa993b | 2190 | { |
f9418c0f AC |
2191 | char *start; |
2192 | const char *end; | |
c906108c | 2193 | |
f9418c0f AC |
2194 | /* Keep skipping leading white space. */ |
2195 | if (isspace ((*addr_exp))) | |
2196 | { | |
2197 | addr_exp++; | |
2198 | continue; | |
2199 | } | |
c906108c | 2200 | |
f9418c0f AC |
2201 | /* Discard any leading ``$''. Check that there is something |
2202 | resembling a register following it. */ | |
2203 | if (addr_exp[0] == '$') | |
2204 | addr_exp++; | |
2205 | if (isspace ((*addr_exp)) || (*addr_exp) == '\0') | |
8a3fe4f8 | 2206 | error (_("Missing register name")); |
c906108c | 2207 | |
f9418c0f AC |
2208 | /* Find the start/end of this register name/num/group. */ |
2209 | start = addr_exp; | |
2210 | while ((*addr_exp) != '\0' && !isspace ((*addr_exp))) | |
2211 | addr_exp++; | |
2212 | end = addr_exp; | |
ad842144 | 2213 | |
f9418c0f AC |
2214 | /* Figure out what we've found and display it. */ |
2215 | ||
2216 | /* A register name? */ | |
2217 | { | |
029a67e4 | 2218 | int regnum = user_reg_map_name_to_regnum (gdbarch, start, end - start); |
abbb1732 | 2219 | |
f9418c0f AC |
2220 | if (regnum >= 0) |
2221 | { | |
ad842144 MR |
2222 | /* User registers lie completely outside of the range of |
2223 | normal registers. Catch them early so that the target | |
2224 | never sees them. */ | |
2225 | if (regnum >= gdbarch_num_regs (gdbarch) | |
2226 | + gdbarch_num_pseudo_regs (gdbarch)) | |
2227 | { | |
1292279a PA |
2228 | struct value *regval = value_of_user_reg (regnum, frame); |
2229 | const char *regname = user_reg_map_regnum_to_name (gdbarch, | |
2230 | regnum); | |
2231 | ||
2232 | /* Print in the same fashion | |
2233 | gdbarch_print_registers_info's default | |
2234 | implementation prints. */ | |
2235 | default_print_one_register_info (gdb_stdout, | |
2236 | regname, | |
2237 | regval); | |
ad842144 MR |
2238 | } |
2239 | else | |
2240 | gdbarch_print_registers_info (gdbarch, gdb_stdout, | |
2241 | frame, regnum, fpregs); | |
f9418c0f AC |
2242 | continue; |
2243 | } | |
2244 | } | |
ad842144 | 2245 | |
f9418c0f AC |
2246 | /* A register group? */ |
2247 | { | |
6c7d17ba | 2248 | struct reggroup *group; |
abbb1732 | 2249 | |
a4bd449d | 2250 | for (group = reggroup_next (gdbarch, NULL); |
6c7d17ba | 2251 | group != NULL; |
a4bd449d | 2252 | group = reggroup_next (gdbarch, group)) |
f9418c0f AC |
2253 | { |
2254 | /* Don't bother with a length check. Should the user | |
2255 | enter a short register group name, go with the first | |
2256 | group that matches. */ | |
6c7d17ba | 2257 | if (strncmp (start, reggroup_name (group), end - start) == 0) |
f9418c0f AC |
2258 | break; |
2259 | } | |
6c7d17ba | 2260 | if (group != NULL) |
f9418c0f AC |
2261 | { |
2262 | int regnum; | |
abbb1732 | 2263 | |
f57d151a | 2264 | for (regnum = 0; |
a4bd449d UW |
2265 | regnum < gdbarch_num_regs (gdbarch) |
2266 | + gdbarch_num_pseudo_regs (gdbarch); | |
f57d151a | 2267 | regnum++) |
f9418c0f | 2268 | { |
a4bd449d UW |
2269 | if (gdbarch_register_reggroup_p (gdbarch, regnum, group)) |
2270 | gdbarch_print_registers_info (gdbarch, | |
206415a3 | 2271 | gdb_stdout, frame, |
f9418c0f AC |
2272 | regnum, fpregs); |
2273 | } | |
2274 | continue; | |
2275 | } | |
2276 | } | |
c906108c | 2277 | |
f9418c0f | 2278 | /* Nothing matched. */ |
8a3fe4f8 | 2279 | error (_("Invalid register `%.*s'"), (int) (end - start), start); |
c5aa993b | 2280 | } |
c906108c SS |
2281 | } |
2282 | ||
1dd5fedc | 2283 | static void |
fba45db2 | 2284 | all_registers_info (char *addr_exp, int from_tty) |
c906108c SS |
2285 | { |
2286 | registers_info (addr_exp, 1); | |
2287 | } | |
2288 | ||
a58dd373 | 2289 | static void |
fba45db2 | 2290 | nofp_registers_info (char *addr_exp, int from_tty) |
c906108c SS |
2291 | { |
2292 | registers_info (addr_exp, 0); | |
2293 | } | |
e76f1f2e AC |
2294 | |
2295 | static void | |
d80b854b | 2296 | print_vector_info (struct ui_file *file, |
e76f1f2e AC |
2297 | struct frame_info *frame, const char *args) |
2298 | { | |
d80b854b UW |
2299 | struct gdbarch *gdbarch = get_frame_arch (frame); |
2300 | ||
e76f1f2e AC |
2301 | if (gdbarch_print_vector_info_p (gdbarch)) |
2302 | gdbarch_print_vector_info (gdbarch, file, frame, args); | |
2303 | else | |
2304 | { | |
2305 | int regnum; | |
2306 | int printed_something = 0; | |
ab4327e0 | 2307 | |
f57d151a | 2308 | for (regnum = 0; |
a4bd449d UW |
2309 | regnum < gdbarch_num_regs (gdbarch) |
2310 | + gdbarch_num_pseudo_regs (gdbarch); | |
f57d151a | 2311 | regnum++) |
e76f1f2e | 2312 | { |
f9418c0f | 2313 | if (gdbarch_register_reggroup_p (gdbarch, regnum, vector_reggroup)) |
e76f1f2e AC |
2314 | { |
2315 | printed_something = 1; | |
e76f1f2e | 2316 | gdbarch_print_registers_info (gdbarch, file, frame, regnum, 1); |
e76f1f2e AC |
2317 | } |
2318 | } | |
2319 | if (!printed_something) | |
2320 | fprintf_filtered (file, "No vector information\n"); | |
2321 | } | |
2322 | } | |
2323 | ||
2324 | static void | |
2325 | vector_info (char *args, int from_tty) | |
2326 | { | |
206415a3 DJ |
2327 | if (!target_has_registers) |
2328 | error (_("The program has no registers now.")); | |
2329 | ||
d80b854b | 2330 | print_vector_info (gdb_stdout, get_selected_frame (NULL), args); |
e76f1f2e | 2331 | } |
c906108c | 2332 | \f |
5fd62852 PA |
2333 | /* Kill the inferior process. Make us have no inferior. */ |
2334 | ||
2335 | static void | |
2336 | kill_command (char *arg, int from_tty) | |
2337 | { | |
2338 | /* FIXME: This should not really be inferior_ptid (or target_has_execution). | |
2339 | It should be a distinct flag that indicates that a target is active, cuz | |
1777feb0 | 2340 | some targets don't have processes! */ |
5fd62852 PA |
2341 | |
2342 | if (ptid_equal (inferior_ptid, null_ptid)) | |
2343 | error (_("The program is not being run.")); | |
2344 | if (!query (_("Kill the program being debugged? "))) | |
2345 | error (_("Not confirmed.")); | |
2346 | target_kill (); | |
2347 | ||
c35b1492 PA |
2348 | /* If we still have other inferiors to debug, then don't mess with |
2349 | with their threads. */ | |
2350 | if (!have_inferiors ()) | |
5fd62852 | 2351 | { |
1777feb0 | 2352 | init_thread_list (); /* Destroy thread info. */ |
5fd62852 PA |
2353 | |
2354 | /* Killing off the inferior can leave us with a core file. If | |
2355 | so, print the state we are left in. */ | |
2356 | if (target_has_stack) | |
2357 | { | |
2358 | printf_filtered (_("In %s,\n"), target_longname); | |
2359 | print_stack_frame (get_selected_frame (NULL), 1, SRC_AND_LOC); | |
2360 | } | |
2361 | } | |
2362 | bfd_cache_close_all (); | |
2363 | } | |
c5aa993b | 2364 | |
74531fed PA |
2365 | /* Used in `attach&' command. ARG is a point to an integer |
2366 | representing a process id. Proceed threads of this process iff | |
2367 | they stopped due to debugger request, and when they did, they | |
a493e3e2 | 2368 | reported a clean stop (GDB_SIGNAL_0). Do not proceed threads |
74531fed PA |
2369 | that have been explicitly been told to stop. */ |
2370 | ||
2371 | static int | |
2372 | proceed_after_attach_callback (struct thread_info *thread, | |
2373 | void *arg) | |
2374 | { | |
2375 | int pid = * (int *) arg; | |
2376 | ||
2377 | if (ptid_get_pid (thread->ptid) == pid | |
2378 | && !is_exited (thread->ptid) | |
2379 | && !is_executing (thread->ptid) | |
2380 | && !thread->stop_requested | |
a493e3e2 | 2381 | && thread->suspend.stop_signal == GDB_SIGNAL_0) |
74531fed PA |
2382 | { |
2383 | switch_to_thread (thread->ptid); | |
2384 | clear_proceed_status (); | |
a493e3e2 | 2385 | proceed ((CORE_ADDR) -1, GDB_SIGNAL_DEFAULT, 0); |
74531fed PA |
2386 | } |
2387 | ||
2388 | return 0; | |
2389 | } | |
2390 | ||
2391 | static void | |
2392 | proceed_after_attach (int pid) | |
2393 | { | |
2394 | /* Don't error out if the current thread is running, because | |
2395 | there may be other stopped threads. */ | |
2396 | struct cleanup *old_chain; | |
2397 | ||
2398 | /* Backup current thread and selected frame. */ | |
2399 | old_chain = make_cleanup_restore_current_thread (); | |
2400 | ||
2401 | iterate_over_threads (proceed_after_attach_callback, &pid); | |
2402 | ||
2403 | /* Restore selected ptid. */ | |
2404 | do_cleanups (old_chain); | |
2405 | } | |
2406 | ||
c906108c SS |
2407 | /* |
2408 | * TODO: | |
2409 | * Should save/restore the tty state since it might be that the | |
2410 | * program to be debugged was started on this tty and it wants | |
2411 | * the tty in some state other than what we want. If it's running | |
2412 | * on another terminal or without a terminal, then saving and | |
2413 | * restoring the tty state is a harmless no-op. | |
2414 | * This only needs to be done if we are attaching to a process. | |
2415 | */ | |
2416 | ||
1777feb0 | 2417 | /* attach_command -- |
c906108c SS |
2418 | takes a program started up outside of gdb and ``attaches'' to it. |
2419 | This stops it cold in its tracks and allows us to start debugging it. | |
2420 | and wait for the trace-trap that results from attaching. */ | |
2421 | ||
9356cf8d PA |
2422 | static void |
2423 | attach_command_post_wait (char *args, int from_tty, int async_exec) | |
2424 | { | |
2425 | char *exec_file; | |
2426 | char *full_exec_path = NULL; | |
d6b48e9c | 2427 | struct inferior *inferior; |
9356cf8d | 2428 | |
d6b48e9c | 2429 | inferior = current_inferior (); |
16c381f0 | 2430 | inferior->control.stop_soon = NO_STOP_QUIETLY; |
9356cf8d PA |
2431 | |
2432 | /* If no exec file is yet known, try to determine it from the | |
2433 | process itself. */ | |
2434 | exec_file = (char *) get_exec_file (0); | |
2435 | if (!exec_file) | |
2436 | { | |
2437 | exec_file = target_pid_to_exec_file (PIDGET (inferior_ptid)); | |
2438 | if (exec_file) | |
2439 | { | |
2440 | /* It's possible we don't have a full path, but rather just a | |
2441 | filename. Some targets, such as HP-UX, don't provide the | |
2442 | full path, sigh. | |
2443 | ||
2444 | Attempt to qualify the filename against the source path. | |
2445 | (If that fails, we'll just fall back on the original | |
1777feb0 MS |
2446 | filename. Not much more we can do...) */ |
2447 | ||
9356cf8d | 2448 | if (!source_full_path_of (exec_file, &full_exec_path)) |
1b36a34b | 2449 | full_exec_path = xstrdup (exec_file); |
9356cf8d PA |
2450 | |
2451 | exec_file_attach (full_exec_path, from_tty); | |
2452 | symbol_file_add_main (full_exec_path, from_tty); | |
2453 | } | |
2454 | } | |
2455 | else | |
2456 | { | |
2457 | reopen_exec_file (); | |
2458 | reread_symbols (); | |
2459 | } | |
2460 | ||
2461 | /* Take any necessary post-attaching actions for this platform. */ | |
2462 | target_post_attach (PIDGET (inferior_ptid)); | |
2463 | ||
2464 | post_create_inferior (¤t_target, from_tty); | |
2465 | ||
2466 | /* Install inferior's terminal modes. */ | |
2467 | target_terminal_inferior (); | |
2468 | ||
2469 | if (async_exec) | |
74531fed PA |
2470 | { |
2471 | /* The user requested an `attach&', so be sure to leave threads | |
2472 | that didn't get a signal running. */ | |
2473 | ||
2474 | /* Immediatelly resume all suspended threads of this inferior, | |
2475 | and this inferior only. This should have no effect on | |
2476 | already running threads. If a thread has been stopped with a | |
2477 | signal, leave it be. */ | |
2478 | if (non_stop) | |
2479 | proceed_after_attach (inferior->pid); | |
2480 | else | |
2481 | { | |
a493e3e2 | 2482 | if (inferior_thread ()->suspend.stop_signal == GDB_SIGNAL_0) |
74531fed PA |
2483 | { |
2484 | clear_proceed_status (); | |
a493e3e2 | 2485 | proceed ((CORE_ADDR) -1, GDB_SIGNAL_DEFAULT, 0); |
74531fed PA |
2486 | } |
2487 | } | |
2488 | } | |
9356cf8d PA |
2489 | else |
2490 | { | |
74531fed PA |
2491 | /* The user requested a plain `attach', so be sure to leave |
2492 | the inferior stopped. */ | |
2493 | ||
9356cf8d PA |
2494 | if (target_can_async_p ()) |
2495 | async_enable_stdin (); | |
74531fed PA |
2496 | |
2497 | /* At least the current thread is already stopped. */ | |
2498 | ||
2499 | /* In all-stop, by definition, all threads have to be already | |
2500 | stopped at this point. In non-stop, however, although the | |
2501 | selected thread is stopped, others may still be executing. | |
2502 | Be sure to explicitly stop all threads of the process. This | |
2503 | should have no effect on already stopped threads. */ | |
2504 | if (non_stop) | |
2505 | target_stop (pid_to_ptid (inferior->pid)); | |
2506 | ||
2507 | /* Tell the user/frontend where we're stopped. */ | |
9356cf8d PA |
2508 | normal_stop (); |
2509 | if (deprecated_attach_hook) | |
2510 | deprecated_attach_hook (); | |
2511 | } | |
2512 | } | |
2513 | ||
bfec99b2 | 2514 | struct attach_command_continuation_args |
9356cf8d PA |
2515 | { |
2516 | char *args; | |
2517 | int from_tty; | |
2518 | int async_exec; | |
bfec99b2 | 2519 | }; |
9356cf8d | 2520 | |
bfec99b2 | 2521 | static void |
fa4cd53f | 2522 | attach_command_continuation (void *args, int err) |
bfec99b2 PA |
2523 | { |
2524 | struct attach_command_continuation_args *a = args; | |
abbb1732 | 2525 | |
fa4cd53f PA |
2526 | if (err) |
2527 | return; | |
2528 | ||
bfec99b2 | 2529 | attach_command_post_wait (a->args, a->from_tty, a->async_exec); |
9356cf8d PA |
2530 | } |
2531 | ||
604ead4a PA |
2532 | static void |
2533 | attach_command_continuation_free_args (void *args) | |
2534 | { | |
2535 | struct attach_command_continuation_args *a = args; | |
abbb1732 | 2536 | |
604ead4a PA |
2537 | xfree (a->args); |
2538 | xfree (a); | |
2539 | } | |
2540 | ||
c906108c | 2541 | void |
fba45db2 | 2542 | attach_command (char *args, int from_tty) |
c906108c | 2543 | { |
9356cf8d | 2544 | int async_exec = 0; |
cb0362bb | 2545 | struct cleanup *back_to = make_cleanup (null_cleanup, NULL); |
c906108c | 2546 | |
c5aa993b | 2547 | dont_repeat (); /* Not for the faint of heart */ |
c906108c | 2548 | |
f5656ead | 2549 | if (gdbarch_has_global_solist (target_gdbarch ())) |
2567c7d9 PA |
2550 | /* Don't complain if all processes share the same symbol |
2551 | space. */ | |
8a305172 PA |
2552 | ; |
2553 | else if (target_has_execution) | |
c906108c | 2554 | { |
9e2f0ad4 | 2555 | if (query (_("A program is being debugged already. Kill it? "))) |
c906108c SS |
2556 | target_kill (); |
2557 | else | |
8a3fe4f8 | 2558 | error (_("Not killed.")); |
c906108c SS |
2559 | } |
2560 | ||
fd79ecee DJ |
2561 | /* Clean up any leftovers from other runs. Some other things from |
2562 | this function should probably be moved into target_pre_inferior. */ | |
2563 | target_pre_inferior (from_tty); | |
2564 | ||
9908b566 VP |
2565 | if (non_stop && !target_supports_non_stop ()) |
2566 | error (_("Cannot attach to this target in non-stop mode")); | |
2567 | ||
9356cf8d PA |
2568 | if (args) |
2569 | { | |
2570 | async_exec = strip_bg_char (&args); | |
2571 | ||
2572 | /* If we get a request for running in the bg but the target | |
1777feb0 | 2573 | doesn't support it, error out. */ |
9356cf8d PA |
2574 | if (async_exec && !target_can_async_p ()) |
2575 | error (_("Asynchronous execution not supported on this target.")); | |
2576 | } | |
2577 | ||
2578 | /* If we don't get a request of running in the bg, then we need | |
2579 | to simulate synchronous (fg) execution. */ | |
2580 | if (!async_exec && target_can_async_p ()) | |
2581 | { | |
1777feb0 | 2582 | /* Simulate synchronous execution. */ |
9356cf8d | 2583 | async_disable_stdin (); |
cb0362bb | 2584 | make_cleanup ((make_cleanup_ftype *)async_enable_stdin, NULL); |
9356cf8d PA |
2585 | } |
2586 | ||
c906108c SS |
2587 | target_attach (args, from_tty); |
2588 | ||
2589 | /* Set up the "saved terminal modes" of the inferior | |
2590 | based on what modes we are starting it with. */ | |
2591 | target_terminal_init (); | |
2592 | ||
c906108c SS |
2593 | /* Set up execution context to know that we should return from |
2594 | wait_for_inferior as soon as the target reports a stop. */ | |
2595 | init_wait_for_inferior (); | |
2596 | clear_proceed_status (); | |
c906108c | 2597 | |
74531fed PA |
2598 | if (non_stop) |
2599 | { | |
2600 | /* If we find that the current thread isn't stopped, explicitly | |
2601 | do so now, because we're going to install breakpoints and | |
2602 | poke at memory. */ | |
2603 | ||
2604 | if (async_exec) | |
2605 | /* The user requested an `attach&'; stop just one thread. */ | |
2606 | target_stop (inferior_ptid); | |
2607 | else | |
2608 | /* The user requested an `attach', so stop all threads of this | |
2609 | inferior. */ | |
2610 | target_stop (pid_to_ptid (ptid_get_pid (inferior_ptid))); | |
2611 | } | |
2612 | ||
dc177b7a PA |
2613 | /* Some system don't generate traps when attaching to inferior. |
2614 | E.g. Mach 3 or GNU hurd. */ | |
2615 | if (!target_attach_no_wait) | |
c5aa993b | 2616 | { |
d6b48e9c PA |
2617 | struct inferior *inferior = current_inferior (); |
2618 | ||
1777feb0 | 2619 | /* Careful here. See comments in inferior.h. Basically some |
dc177b7a PA |
2620 | OSes don't ignore SIGSTOPs on continue requests anymore. We |
2621 | need a way for handle_inferior_event to reset the stop_signal | |
2622 | variable after an attach, and this is what | |
2623 | STOP_QUIETLY_NO_SIGSTOP is for. */ | |
16c381f0 | 2624 | inferior->control.stop_soon = STOP_QUIETLY_NO_SIGSTOP; |
c5aa993b | 2625 | |
dc177b7a PA |
2626 | if (target_can_async_p ()) |
2627 | { | |
2628 | /* sync_execution mode. Wait for stop. */ | |
bfec99b2 PA |
2629 | struct attach_command_continuation_args *a; |
2630 | ||
2631 | a = xmalloc (sizeof (*a)); | |
2632 | a->args = xstrdup (args); | |
2633 | a->from_tty = from_tty; | |
2634 | a->async_exec = async_exec; | |
e0ba6746 PA |
2635 | add_inferior_continuation (attach_command_continuation, a, |
2636 | attach_command_continuation_free_args); | |
cb0362bb | 2637 | discard_cleanups (back_to); |
dc177b7a PA |
2638 | return; |
2639 | } | |
c906108c | 2640 | |
e4c8541f | 2641 | wait_for_inferior (); |
dc177b7a | 2642 | } |
6426a772 | 2643 | |
9356cf8d | 2644 | attach_command_post_wait (args, from_tty, async_exec); |
cb0362bb | 2645 | discard_cleanups (back_to); |
c906108c SS |
2646 | } |
2647 | ||
1941c569 PA |
2648 | /* We had just found out that the target was already attached to an |
2649 | inferior. PTID points at a thread of this new inferior, that is | |
2650 | the most likely to be stopped right now, but not necessarily so. | |
2651 | The new inferior is assumed to be already added to the inferior | |
2652 | list at this point. If LEAVE_RUNNING, then leave the threads of | |
2653 | this inferior running, except those we've explicitly seen reported | |
2654 | as stopped. */ | |
2655 | ||
2656 | void | |
2657 | notice_new_inferior (ptid_t ptid, int leave_running, int from_tty) | |
2658 | { | |
2659 | struct cleanup* old_chain; | |
2660 | int async_exec; | |
2661 | ||
2662 | old_chain = make_cleanup (null_cleanup, NULL); | |
2663 | ||
2664 | /* If in non-stop, leave threads as running as they were. If | |
2665 | they're stopped for some reason other than us telling it to, the | |
a493e3e2 | 2666 | target reports a signal != GDB_SIGNAL_0. We don't try to |
1941c569 PA |
2667 | resume threads with such a stop signal. */ |
2668 | async_exec = non_stop; | |
2669 | ||
2670 | if (!ptid_equal (inferior_ptid, null_ptid)) | |
2671 | make_cleanup_restore_current_thread (); | |
2672 | ||
2673 | switch_to_thread (ptid); | |
2674 | ||
2675 | /* When we "notice" a new inferior we need to do all the things we | |
2676 | would normally do if we had just attached to it. */ | |
2677 | ||
2678 | if (is_executing (inferior_ptid)) | |
2679 | { | |
2680 | struct inferior *inferior = current_inferior (); | |
2681 | ||
2682 | /* We're going to install breakpoints, and poke at memory, | |
2683 | ensure that the inferior is stopped for a moment while we do | |
2684 | that. */ | |
2685 | target_stop (inferior_ptid); | |
2686 | ||
16c381f0 | 2687 | inferior->control.stop_soon = STOP_QUIETLY_REMOTE; |
1941c569 PA |
2688 | |
2689 | /* Wait for stop before proceeding. */ | |
2690 | if (target_can_async_p ()) | |
2691 | { | |
2692 | struct attach_command_continuation_args *a; | |
2693 | ||
2694 | a = xmalloc (sizeof (*a)); | |
2695 | a->args = xstrdup (""); | |
2696 | a->from_tty = from_tty; | |
2697 | a->async_exec = async_exec; | |
2698 | add_inferior_continuation (attach_command_continuation, a, | |
2699 | attach_command_continuation_free_args); | |
2700 | ||
2701 | do_cleanups (old_chain); | |
2702 | return; | |
2703 | } | |
2704 | else | |
e4c8541f | 2705 | wait_for_inferior (); |
1941c569 PA |
2706 | } |
2707 | ||
2708 | async_exec = leave_running; | |
2709 | attach_command_post_wait ("" /* args */, from_tty, async_exec); | |
2710 | ||
2711 | do_cleanups (old_chain); | |
2712 | } | |
2713 | ||
c906108c SS |
2714 | /* |
2715 | * detach_command -- | |
2716 | * takes a program previously attached to and detaches it. | |
2717 | * The program resumes execution and will no longer stop | |
2718 | * on signals, etc. We better not have left any breakpoints | |
2719 | * in the program or it'll die when it hits one. For this | |
2720 | * to work, it may be necessary for the process to have been | |
2721 | * previously attached. It *might* work if the program was | |
2722 | * started via the normal ptrace (PTRACE_TRACEME). | |
2723 | */ | |
2724 | ||
6418d433 | 2725 | void |
fba45db2 | 2726 | detach_command (char *args, int from_tty) |
c906108c | 2727 | { |
1f5d0fc9 | 2728 | dont_repeat (); /* Not for the faint of heart. */ |
d729566a PA |
2729 | |
2730 | if (ptid_equal (inferior_ptid, null_ptid)) | |
2731 | error (_("The program is not being run.")); | |
2732 | ||
33da3f1c | 2733 | disconnect_tracing (from_tty); |
d5551862 | 2734 | |
c906108c | 2735 | target_detach (args, from_tty); |
50c71eaf PA |
2736 | |
2737 | /* If the solist is global across inferiors, don't clear it when we | |
2738 | detach from a single inferior. */ | |
f5656ead | 2739 | if (!gdbarch_has_global_solist (target_gdbarch ())) |
50c71eaf | 2740 | no_shared_libraries (NULL, from_tty); |
8a305172 | 2741 | |
c35b1492 PA |
2742 | /* If we still have inferiors to debug, then don't mess with their |
2743 | threads. */ | |
2744 | if (!have_inferiors ()) | |
8a305172 PA |
2745 | init_thread_list (); |
2746 | ||
9a4105ab AC |
2747 | if (deprecated_detach_hook) |
2748 | deprecated_detach_hook (); | |
c906108c SS |
2749 | } |
2750 | ||
6ad8ae5c DJ |
2751 | /* Disconnect from the current target without resuming it (leaving it |
2752 | waiting for a debugger). | |
2753 | ||
2754 | We'd better not have left any breakpoints in the program or the | |
2755 | next debugger will get confused. Currently only supported for some | |
2756 | remote targets, since the normal attach mechanisms don't work on | |
2757 | stopped processes on some native platforms (e.g. GNU/Linux). */ | |
2758 | ||
2759 | static void | |
2760 | disconnect_command (char *args, int from_tty) | |
2761 | { | |
1777feb0 | 2762 | dont_repeat (); /* Not for the faint of heart. */ |
d31647d2 | 2763 | disconnect_tracing (from_tty); |
6ad8ae5c | 2764 | target_disconnect (args, from_tty); |
e85a822c | 2765 | no_shared_libraries (NULL, from_tty); |
a0ef4274 | 2766 | init_thread_list (); |
9a4105ab AC |
2767 | if (deprecated_detach_hook) |
2768 | deprecated_detach_hook (); | |
6ad8ae5c DJ |
2769 | } |
2770 | ||
77ebaa5a VP |
2771 | void |
2772 | interrupt_target_1 (int all_threads) | |
2773 | { | |
2774 | ptid_t ptid; | |
abbb1732 | 2775 | |
77ebaa5a VP |
2776 | if (all_threads) |
2777 | ptid = minus_one_ptid; | |
2778 | else | |
2779 | ptid = inferior_ptid; | |
2780 | target_stop (ptid); | |
252fbfc8 PA |
2781 | |
2782 | /* Tag the thread as having been explicitly requested to stop, so | |
2783 | other parts of gdb know not to resume this thread automatically, | |
2784 | if it was stopped due to an internal event. Limit this to | |
2785 | non-stop mode, as when debugging a multi-threaded application in | |
2786 | all-stop mode, we will only get one stop event --- it's undefined | |
2787 | which thread will report the event. */ | |
2788 | if (non_stop) | |
2789 | set_stop_requested (ptid, 1); | |
77ebaa5a VP |
2790 | } |
2791 | ||
43ff13b4 | 2792 | /* Stop the execution of the target while running in async mode, in |
8cae4b3f PA |
2793 | the backgound. In all-stop, stop the whole process. In non-stop |
2794 | mode, stop the current thread only by default, or stop all threads | |
2795 | if the `-a' switch is used. */ | |
2796 | ||
2797 | /* interrupt [-a] */ | |
1dd5fedc | 2798 | static void |
fba45db2 | 2799 | interrupt_target_command (char *args, int from_tty) |
43ff13b4 | 2800 | { |
362646f5 | 2801 | if (target_can_async_p ()) |
43ff13b4 | 2802 | { |
8cae4b3f PA |
2803 | int all_threads = 0; |
2804 | ||
1777feb0 | 2805 | dont_repeat (); /* Not for the faint of heart. */ |
94cc34af | 2806 | |
8cae4b3f PA |
2807 | if (args != NULL |
2808 | && strncmp (args, "-a", sizeof ("-a") - 1) == 0) | |
2809 | all_threads = 1; | |
2810 | ||
2811 | if (!non_stop && all_threads) | |
2812 | error (_("-a is meaningless in all-stop mode.")); | |
2813 | ||
77ebaa5a | 2814 | interrupt_target_1 (all_threads); |
43ff13b4 JM |
2815 | } |
2816 | } | |
2817 | ||
c906108c | 2818 | static void |
d80b854b | 2819 | print_float_info (struct ui_file *file, |
23e3a7ac | 2820 | struct frame_info *frame, const char *args) |
c906108c | 2821 | { |
d80b854b UW |
2822 | struct gdbarch *gdbarch = get_frame_arch (frame); |
2823 | ||
23e3a7ac AC |
2824 | if (gdbarch_print_float_info_p (gdbarch)) |
2825 | gdbarch_print_float_info (gdbarch, file, frame, args); | |
2826 | else | |
2827 | { | |
23e3a7ac AC |
2828 | int regnum; |
2829 | int printed_something = 0; | |
ab4327e0 | 2830 | |
f57d151a | 2831 | for (regnum = 0; |
a4bd449d UW |
2832 | regnum < gdbarch_num_regs (gdbarch) |
2833 | + gdbarch_num_pseudo_regs (gdbarch); | |
f57d151a | 2834 | regnum++) |
23e3a7ac | 2835 | { |
f9418c0f | 2836 | if (gdbarch_register_reggroup_p (gdbarch, regnum, float_reggroup)) |
23e3a7ac AC |
2837 | { |
2838 | printed_something = 1; | |
23e3a7ac | 2839 | gdbarch_print_registers_info (gdbarch, file, frame, regnum, 1); |
23e3a7ac AC |
2840 | } |
2841 | } | |
2842 | if (!printed_something) | |
3e43a32a MS |
2843 | fprintf_filtered (file, "No floating-point info " |
2844 | "available for this processor.\n"); | |
23e3a7ac AC |
2845 | } |
2846 | } | |
2847 | ||
2848 | static void | |
2849 | float_info (char *args, int from_tty) | |
2850 | { | |
206415a3 DJ |
2851 | if (!target_has_registers) |
2852 | error (_("The program has no registers now.")); | |
2853 | ||
d80b854b | 2854 | print_float_info (gdb_stdout, get_selected_frame (NULL), args); |
c906108c SS |
2855 | } |
2856 | \f | |
c906108c | 2857 | static void |
fba45db2 | 2858 | unset_command (char *args, int from_tty) |
c906108c | 2859 | { |
3e43a32a MS |
2860 | printf_filtered (_("\"unset\" must be followed by the " |
2861 | "name of an unset subcommand.\n")); | |
c906108c SS |
2862 | help_list (unsetlist, "unset ", -1, gdb_stdout); |
2863 | } | |
2864 | ||
145b16a9 UW |
2865 | /* Implement `info proc' family of commands. */ |
2866 | ||
2867 | static void | |
2868 | info_proc_cmd_1 (char *args, enum info_proc_what what, int from_tty) | |
2869 | { | |
3030c96e UW |
2870 | struct gdbarch *gdbarch = get_current_arch (); |
2871 | ||
451b7c33 TT |
2872 | if (!target_info_proc (args, what)) |
2873 | { | |
2874 | if (gdbarch_info_proc_p (gdbarch)) | |
2875 | gdbarch_info_proc (gdbarch, args, what); | |
2876 | else | |
2877 | error (_("Not supported on this target.")); | |
2878 | } | |
145b16a9 UW |
2879 | } |
2880 | ||
2881 | /* Implement `info proc' when given without any futher parameters. */ | |
2882 | ||
2883 | static void | |
2884 | info_proc_cmd (char *args, int from_tty) | |
2885 | { | |
2886 | info_proc_cmd_1 (args, IP_MINIMAL, from_tty); | |
2887 | } | |
2888 | ||
2889 | /* Implement `info proc mappings'. */ | |
2890 | ||
2891 | static void | |
2892 | info_proc_cmd_mappings (char *args, int from_tty) | |
2893 | { | |
2894 | info_proc_cmd_1 (args, IP_MAPPINGS, from_tty); | |
2895 | } | |
2896 | ||
2897 | /* Implement `info proc stat'. */ | |
2898 | ||
2899 | static void | |
2900 | info_proc_cmd_stat (char *args, int from_tty) | |
2901 | { | |
2902 | info_proc_cmd_1 (args, IP_STAT, from_tty); | |
2903 | } | |
2904 | ||
2905 | /* Implement `info proc status'. */ | |
2906 | ||
2907 | static void | |
2908 | info_proc_cmd_status (char *args, int from_tty) | |
2909 | { | |
2910 | info_proc_cmd_1 (args, IP_STATUS, from_tty); | |
2911 | } | |
2912 | ||
2913 | /* Implement `info proc cwd'. */ | |
2914 | ||
2915 | static void | |
2916 | info_proc_cmd_cwd (char *args, int from_tty) | |
2917 | { | |
2918 | info_proc_cmd_1 (args, IP_CWD, from_tty); | |
2919 | } | |
2920 | ||
2921 | /* Implement `info proc cmdline'. */ | |
2922 | ||
2923 | static void | |
2924 | info_proc_cmd_cmdline (char *args, int from_tty) | |
2925 | { | |
2926 | info_proc_cmd_1 (args, IP_CMDLINE, from_tty); | |
2927 | } | |
2928 | ||
2929 | /* Implement `info proc exe'. */ | |
2930 | ||
2931 | static void | |
2932 | info_proc_cmd_exe (char *args, int from_tty) | |
2933 | { | |
2934 | info_proc_cmd_1 (args, IP_EXE, from_tty); | |
2935 | } | |
2936 | ||
2937 | /* Implement `info proc all'. */ | |
2938 | ||
2939 | static void | |
2940 | info_proc_cmd_all (char *args, int from_tty) | |
2941 | { | |
2942 | info_proc_cmd_1 (args, IP_ALL, from_tty); | |
2943 | } | |
2944 | ||
c906108c | 2945 | void |
fba45db2 | 2946 | _initialize_infcmd (void) |
c906108c | 2947 | { |
145b16a9 | 2948 | static struct cmd_list_element *info_proc_cmdlist; |
3cb3b8df | 2949 | struct cmd_list_element *c = NULL; |
6ace3df1 | 2950 | char *cmd_name; |
3cb3b8df | 2951 | |
1777feb0 | 2952 | /* Add the filename of the terminal connected to inferior I/O. */ |
3cb3b8df | 2953 | add_setshow_filename_cmd ("inferior-tty", class_run, |
3f81c18a | 2954 | &inferior_io_terminal_scratch, _("\ |
3cb3b8df BR |
2955 | Set terminal for future runs of program being debugged."), _("\ |
2956 | Show terminal for future runs of program being debugged."), _("\ | |
3f81c18a VP |
2957 | Usage: set inferior-tty /dev/pts/1"), |
2958 | set_inferior_tty_command, | |
2959 | show_inferior_tty_command, | |
2960 | &setlist, &showlist); | |
3cb3b8df | 2961 | add_com_alias ("tty", "set inferior-tty", class_alias, 0); |
c906108c | 2962 | |
6ace3df1 YQ |
2963 | cmd_name = "args"; |
2964 | add_setshow_string_noescape_cmd (cmd_name, class_run, | |
2965 | &inferior_args_scratch, _("\ | |
b4b4ac0b AC |
2966 | Set argument list to give program being debugged when it is started."), _("\ |
2967 | Show argument list to give program being debugged when it is started."), _("\ | |
2968 | Follow this command with any number of args, to be passed to the program."), | |
6ace3df1 YQ |
2969 | set_args_command, |
2970 | show_args_command, | |
2971 | &setlist, &showlist); | |
2972 | c = lookup_cmd (&cmd_name, setlist, "", -1, 1); | |
2973 | gdb_assert (c != NULL); | |
2974 | set_cmd_completer (c, filename_completer); | |
c906108c | 2975 | |
1a966eab AC |
2976 | c = add_cmd ("environment", no_class, environment_info, _("\ |
2977 | The environment to give the program, or one variable's value.\n\ | |
c906108c SS |
2978 | With an argument VAR, prints the value of environment variable VAR to\n\ |
2979 | give the program being debugged. With no arguments, prints the entire\n\ | |
1a966eab | 2980 | environment to be given to the program."), &showlist); |
5ba2abeb | 2981 | set_cmd_completer (c, noop_completer); |
c906108c SS |
2982 | |
2983 | add_prefix_cmd ("unset", no_class, unset_command, | |
1bedd215 | 2984 | _("Complement to certain \"set\" commands."), |
c906108c | 2985 | &unsetlist, "unset ", 0, &cmdlist); |
c5aa993b | 2986 | |
1a966eab AC |
2987 | c = add_cmd ("environment", class_run, unset_environment_command, _("\ |
2988 | Cancel environment variable VAR for the program.\n\ | |
2989 | This does not affect the program until the next \"run\" command."), | |
c5aa993b | 2990 | &unsetlist); |
5ba2abeb | 2991 | set_cmd_completer (c, noop_completer); |
c906108c | 2992 | |
1a966eab AC |
2993 | c = add_cmd ("environment", class_run, set_environment_command, _("\ |
2994 | Set environment variable value to give the program.\n\ | |
c906108c SS |
2995 | Arguments are VAR VALUE where VAR is variable name and VALUE is value.\n\ |
2996 | VALUES of environment variables are uninterpreted strings.\n\ | |
1a966eab | 2997 | This does not affect the program until the next \"run\" command."), |
c5aa993b | 2998 | &setlist); |
5ba2abeb | 2999 | set_cmd_completer (c, noop_completer); |
c5aa993b | 3000 | |
1bedd215 AC |
3001 | c = add_com ("path", class_files, path_command, _("\ |
3002 | Add directory DIR(s) to beginning of search path for object files.\n\ | |
c906108c SS |
3003 | $cwd in the path means the current working directory.\n\ |
3004 | This path is equivalent to the $PATH shell variable. It is a list of\n\ | |
3005 | directories, separated by colons. These directories are searched to find\n\ | |
3e43a32a MS |
3006 | fully linked executable files and separately compiled object files as \ |
3007 | needed.")); | |
5ba2abeb | 3008 | set_cmd_completer (c, filename_completer); |
c906108c | 3009 | |
1a966eab AC |
3010 | c = add_cmd ("paths", no_class, path_info, _("\ |
3011 | Current search path for finding object files.\n\ | |
c906108c SS |
3012 | $cwd in the path means the current working directory.\n\ |
3013 | This path is equivalent to the $PATH shell variable. It is a list of\n\ | |
3014 | directories, separated by colons. These directories are searched to find\n\ | |
3e43a32a MS |
3015 | fully linked executable files and separately compiled object files as \ |
3016 | needed."), | |
c906108c | 3017 | &showlist); |
5ba2abeb | 3018 | set_cmd_completer (c, noop_completer); |
c906108c | 3019 | |
2277426b PA |
3020 | add_prefix_cmd ("kill", class_run, kill_command, |
3021 | _("Kill execution of program being debugged."), | |
3022 | &killlist, "kill ", 0, &cmdlist); | |
5fd62852 | 3023 | |
1bedd215 AC |
3024 | add_com ("attach", class_run, attach_command, _("\ |
3025 | Attach to a process or file outside of GDB.\n\ | |
c906108c SS |
3026 | This command attaches to another target, of the same type as your last\n\ |
3027 | \"target\" command (\"info files\" will show your target stack).\n\ | |
3028 | The command may take as argument a process id or a device file.\n\ | |
3029 | For a process id, you must have permission to send the process a signal,\n\ | |
3030 | and it must have the same effective uid as the debugger.\n\ | |
3031 | When using \"attach\" with a process id, the debugger finds the\n\ | |
3032 | program running in the process, looking first in the current working\n\ | |
3033 | directory, or (if not found there) using the source file search path\n\ | |
3034 | (see the \"directory\" command). You can also use the \"file\" command\n\ | |
1bedd215 | 3035 | to specify the program, and to load its symbol table.")); |
c906108c | 3036 | |
f73adfeb | 3037 | add_prefix_cmd ("detach", class_run, detach_command, _("\ |
1bedd215 | 3038 | Detach a process or file previously attached.\n\ |
c906108c | 3039 | If a process, it is no longer traced, and it continues its execution. If\n\ |
f73adfeb AS |
3040 | you were debugging a file, the file is closed and gdb no longer accesses it."), |
3041 | &detachlist, "detach ", 0, &cmdlist); | |
c906108c | 3042 | |
1bedd215 AC |
3043 | add_com ("disconnect", class_run, disconnect_command, _("\ |
3044 | Disconnect from a target.\n\ | |
6ad8ae5c | 3045 | The target will wait for another debugger to connect. Not available for\n\ |
1bedd215 | 3046 | all targets.")); |
6ad8ae5c | 3047 | |
de0bea00 | 3048 | c = add_com ("signal", class_run, signal_command, _("\ |
486c7739 MF |
3049 | Continue program with the specified signal.\n\ |
3050 | Usage: signal SIGNAL\n\ | |
2edda2ff | 3051 | The SIGNAL argument is processed the same as the handle command.\n\ |
486c7739 MF |
3052 | \n\ |
3053 | An argument of \"0\" means continue the program without sending it a signal.\n\ | |
3054 | This is useful in cases where the program stopped because of a signal,\n\ | |
3055 | and you want to resume the program while discarding the signal.")); | |
de0bea00 | 3056 | set_cmd_completer (c, signal_completer); |
c906108c | 3057 | |
1bedd215 AC |
3058 | add_com ("stepi", class_run, stepi_command, _("\ |
3059 | Step one instruction exactly.\n\ | |
486c7739 MF |
3060 | Usage: stepi [N]\n\ |
3061 | Argument N means step N times (or till program stops for another \ | |
3e43a32a | 3062 | reason).")); |
c906108c SS |
3063 | add_com_alias ("si", "stepi", class_alias, 0); |
3064 | ||
1bedd215 AC |
3065 | add_com ("nexti", class_run, nexti_command, _("\ |
3066 | Step one instruction, but proceed through subroutine calls.\n\ | |
486c7739 MF |
3067 | Usage: nexti [N]\n\ |
3068 | Argument N means step N times (or till program stops for another \ | |
3e43a32a | 3069 | reason).")); |
c906108c SS |
3070 | add_com_alias ("ni", "nexti", class_alias, 0); |
3071 | ||
1bedd215 AC |
3072 | add_com ("finish", class_run, finish_command, _("\ |
3073 | Execute until selected stack frame returns.\n\ | |
486c7739 | 3074 | Usage: finish\n\ |
1bedd215 | 3075 | Upon return, the value returned is printed and put in the value history.")); |
0e479716 | 3076 | add_com_alias ("fin", "finish", class_run, 1); |
c906108c | 3077 | |
1bedd215 AC |
3078 | add_com ("next", class_run, next_command, _("\ |
3079 | Step program, proceeding through subroutine calls.\n\ | |
486c7739 MF |
3080 | Usage: next [N]\n\ |
3081 | Unlike \"step\", if the current source line calls a subroutine,\n\ | |
3082 | this command does not enter the subroutine, but instead steps over\n\ | |
dbf6a605 | 3083 | the call, in effect treating it as a single source line.")); |
c906108c SS |
3084 | add_com_alias ("n", "next", class_run, 1); |
3085 | if (xdb_commands) | |
c5aa993b | 3086 | add_com_alias ("S", "next", class_run, 1); |
c906108c | 3087 | |
1bedd215 AC |
3088 | add_com ("step", class_run, step_command, _("\ |
3089 | Step program until it reaches a different source line.\n\ | |
486c7739 MF |
3090 | Usage: step [N]\n\ |
3091 | Argument N means step N times (or till program stops for another \ | |
3e43a32a | 3092 | reason).")); |
c906108c SS |
3093 | add_com_alias ("s", "step", class_run, 1); |
3094 | ||
1bedd215 AC |
3095 | c = add_com ("until", class_run, until_command, _("\ |
3096 | Execute until the program reaches a source line greater than the current\n\ | |
3e43a32a MS |
3097 | or a specified location (same args as break command) within the current \ |
3098 | frame.")); | |
5ba2abeb | 3099 | set_cmd_completer (c, location_completer); |
c906108c | 3100 | add_com_alias ("u", "until", class_run, 1); |
c5aa993b | 3101 | |
1bedd215 | 3102 | c = add_com ("advance", class_run, advance_command, _("\ |
3e43a32a MS |
3103 | Continue the program up to the given location (same form as args for break \ |
3104 | command).\n\ | |
1bedd215 | 3105 | Execution will also stop upon exit from the current stack frame.")); |
ae66c1fc EZ |
3106 | set_cmd_completer (c, location_completer); |
3107 | ||
1bedd215 AC |
3108 | c = add_com ("jump", class_run, jump_command, _("\ |
3109 | Continue program being debugged at specified line or address.\n\ | |
486c7739 | 3110 | Usage: jump <location>\n\ |
c906108c | 3111 | Give as argument either LINENUM or *ADDR, where ADDR is an expression\n\ |
1bedd215 | 3112 | for an address to start at.")); |
5ba2abeb | 3113 | set_cmd_completer (c, location_completer); |
c1d780c2 | 3114 | add_com_alias ("j", "jump", class_run, 1); |
c906108c | 3115 | |
b83266a0 | 3116 | if (xdb_commands) |
c94fdfd0 | 3117 | { |
1bedd215 AC |
3118 | c = add_com ("go", class_run, go_command, _("\ |
3119 | Usage: go <location>\n\ | |
c906108c SS |
3120 | Continue program being debugged, stopping at specified line or \n\ |
3121 | address.\n\ | |
3122 | Give as argument either LINENUM or *ADDR, where ADDR is an \n\ | |
3123 | expression for an address to start at.\n\ | |
1bedd215 | 3124 | This command is a combination of tbreak and jump.")); |
5ba2abeb | 3125 | set_cmd_completer (c, location_completer); |
c94fdfd0 | 3126 | } |
b83266a0 | 3127 | |
c906108c | 3128 | if (xdb_commands) |
c5aa993b | 3129 | add_com_alias ("g", "go", class_run, 1); |
c906108c | 3130 | |
df983543 | 3131 | add_com ("continue", class_run, continue_command, _("\ |
1bedd215 | 3132 | Continue program being debugged, after signal or breakpoint.\n\ |
486c7739 | 3133 | Usage: continue [N]\n\ |
c906108c SS |
3134 | If proceeding from breakpoint, a number N may be used as an argument,\n\ |
3135 | which means to set the ignore count of that breakpoint to N - 1 (so that\n\ | |
8cae4b3f PA |
3136 | the breakpoint won't break until the Nth time it is reached).\n\ |
3137 | \n\ | |
3138 | If non-stop mode is enabled, continue only the current thread,\n\ | |
3139 | otherwise all the threads in the program are continued. To \n\ | |
3140 | continue all stopped threads in non-stop mode, use the -a option.\n\ | |
3141 | Specifying -a and an ignore count simultaneously is an error.")); | |
c906108c SS |
3142 | add_com_alias ("c", "cont", class_run, 1); |
3143 | add_com_alias ("fg", "cont", class_run, 1); | |
3144 | ||
1bedd215 AC |
3145 | c = add_com ("run", class_run, run_command, _("\ |
3146 | Start debugged program. You may specify arguments to give it.\n\ | |
c906108c | 3147 | Args may include \"*\", or \"[...]\"; they are expanded using \"sh\".\n\ |
3e43a32a MS |
3148 | Input and output redirection with \">\", \"<\", or \">>\" are also \ |
3149 | allowed.\n\n\ | |
3150 | With no arguments, uses arguments last specified (with \"run\" \ | |
3151 | or \"set args\").\n\ | |
c906108c | 3152 | To cancel previous arguments and run with no arguments,\n\ |
1bedd215 | 3153 | use \"set args\" without arguments.")); |
5ba2abeb | 3154 | set_cmd_completer (c, filename_completer); |
c906108c SS |
3155 | add_com_alias ("r", "run", class_run, 1); |
3156 | if (xdb_commands) | |
3157 | add_com ("R", class_run, run_no_args_command, | |
1bedd215 | 3158 | _("Start debugged program with no arguments.")); |
c906108c | 3159 | |
1bedd215 | 3160 | c = add_com ("start", class_run, start_command, _("\ |
a4d5f2e0 JB |
3161 | Run the debugged program until the beginning of the main procedure.\n\ |
3162 | You may specify arguments to give to your program, just as with the\n\ | |
1bedd215 | 3163 | \"run\" command.")); |
a4d5f2e0 JB |
3164 | set_cmd_completer (c, filename_completer); |
3165 | ||
df983543 MS |
3166 | add_com ("interrupt", class_run, interrupt_target_command, |
3167 | _("Interrupt the execution of the debugged program.\n\ | |
8cae4b3f PA |
3168 | If non-stop mode is enabled, interrupt only the current thread,\n\ |
3169 | otherwise all the threads in the program are stopped. To \n\ | |
3170 | interrupt all running threads in non-stop mode, use the -a option.")); | |
43ff13b4 | 3171 | |
1bedd215 AC |
3172 | add_info ("registers", nofp_registers_info, _("\ |
3173 | List of integer registers and their contents, for selected stack frame.\n\ | |
3174 | Register name as argument means describe only that register.")); | |
7194c49b | 3175 | add_info_alias ("r", "registers", 1); |
c906108c SS |
3176 | |
3177 | if (xdb_commands) | |
1bedd215 AC |
3178 | add_com ("lr", class_info, nofp_registers_info, _("\ |
3179 | List of integer registers and their contents, for selected stack frame.\n\ | |
3180 | Register name as argument means describe only that register.")); | |
3181 | add_info ("all-registers", all_registers_info, _("\ | |
3182 | List of all registers and their contents, for selected stack frame.\n\ | |
3183 | Register name as argument means describe only that register.")); | |
c906108c SS |
3184 | |
3185 | add_info ("program", program_info, | |
1bedd215 | 3186 | _("Execution status of the program.")); |
c906108c SS |
3187 | |
3188 | add_info ("float", float_info, | |
1bedd215 | 3189 | _("Print the status of the floating point unit\n")); |
c906108c | 3190 | |
e76f1f2e | 3191 | add_info ("vector", vector_info, |
1bedd215 | 3192 | _("Print the status of the vector unit\n")); |
145b16a9 UW |
3193 | |
3194 | add_prefix_cmd ("proc", class_info, info_proc_cmd, | |
3195 | _("\ | |
3196 | Show /proc process information about any running process.\n\ | |
3197 | Specify any process id, or use the program being debugged by default."), | |
3198 | &info_proc_cmdlist, "info proc ", | |
3199 | 1/*allow-unknown*/, &infolist); | |
3200 | ||
3201 | add_cmd ("mappings", class_info, info_proc_cmd_mappings, _("\ | |
3202 | List of mapped memory regions."), | |
3203 | &info_proc_cmdlist); | |
3204 | ||
3205 | add_cmd ("stat", class_info, info_proc_cmd_stat, _("\ | |
3206 | List process info from /proc/PID/stat."), | |
3207 | &info_proc_cmdlist); | |
3208 | ||
3209 | add_cmd ("status", class_info, info_proc_cmd_status, _("\ | |
3210 | List process info from /proc/PID/status."), | |
3211 | &info_proc_cmdlist); | |
3212 | ||
3213 | add_cmd ("cwd", class_info, info_proc_cmd_cwd, _("\ | |
3214 | List current working directory of the process."), | |
3215 | &info_proc_cmdlist); | |
3216 | ||
3217 | add_cmd ("cmdline", class_info, info_proc_cmd_cmdline, _("\ | |
3218 | List command line arguments of the process."), | |
3219 | &info_proc_cmdlist); | |
3220 | ||
3221 | add_cmd ("exe", class_info, info_proc_cmd_exe, _("\ | |
3222 | List absolute filename for executable of the process."), | |
3223 | &info_proc_cmdlist); | |
3224 | ||
3225 | add_cmd ("all", class_info, info_proc_cmd_all, _("\ | |
3226 | List all available /proc info."), | |
3227 | &info_proc_cmdlist); | |
c906108c | 3228 | } |