Commit | Line | Data |
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c906108c | 1 | /* Memory-access and commands for "inferior" process, for GDB. |
990a07ab | 2 | |
6aba47ca | 3 | Copyright (C) 1986, 1987, 1988, 1989, 1990, 1991, 1992, 1993, 1994, 1995, |
9b254dd1 | 4 | 1996, 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005, 2006, 2007, |
7b6bb8da | 5 | 2008, 2009, 2010, 2011 Free Software Foundation, Inc. |
c906108c | 6 | |
c5aa993b | 7 | This file is part of GDB. |
c906108c | 8 | |
c5aa993b JM |
9 | This program is free software; you can redistribute it and/or modify |
10 | it under the terms of the GNU General Public License as published by | |
a9762ec7 | 11 | the Free Software Foundation; either version 3 of the License, or |
c5aa993b | 12 | (at your option) any later version. |
c906108c | 13 | |
c5aa993b JM |
14 | This program is distributed in the hope that it will be useful, |
15 | but WITHOUT ANY WARRANTY; without even the implied warranty of | |
16 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
17 | GNU General Public License for more details. | |
c906108c | 18 | |
c5aa993b | 19 | You should have received a copy of the GNU General Public License |
a9762ec7 | 20 | along with this program. If not, see <http://www.gnu.org/licenses/>. */ |
c906108c SS |
21 | |
22 | #include "defs.h" | |
5af949e3 | 23 | #include "arch-utils.h" |
c906108c SS |
24 | #include <signal.h> |
25 | #include "gdb_string.h" | |
26 | #include "symtab.h" | |
27 | #include "gdbtypes.h" | |
28 | #include "frame.h" | |
29 | #include "inferior.h" | |
30 | #include "environ.h" | |
31 | #include "value.h" | |
32 | #include "gdbcmd.h" | |
1adeb98a | 33 | #include "symfile.h" |
c906108c SS |
34 | #include "gdbcore.h" |
35 | #include "target.h" | |
36 | #include "language.h" | |
37 | #include "symfile.h" | |
38 | #include "objfiles.h" | |
c94fdfd0 | 39 | #include "completer.h" |
8b93c638 | 40 | #include "ui-out.h" |
6426a772 | 41 | #include "event-top.h" |
96baa820 | 42 | #include "parser-defs.h" |
36160dc4 | 43 | #include "regcache.h" |
f9418c0f | 44 | #include "reggroups.h" |
fe898f56 | 45 | #include "block.h" |
a77053c2 | 46 | #include "solib.h" |
f9418c0f | 47 | #include <ctype.h> |
92ad9cd9 | 48 | #include "gdb_assert.h" |
281b533b | 49 | #include "observer.h" |
424163ea | 50 | #include "target-descriptions.h" |
ad842144 | 51 | #include "user-regs.h" |
32c1e744 | 52 | #include "exceptions.h" |
700b53b1 | 53 | #include "cli/cli-decode.h" |
a0ef4274 | 54 | #include "gdbthread.h" |
79a45b7d | 55 | #include "valprint.h" |
edb3359d | 56 | #include "inline-frame.h" |
573cda03 | 57 | #include "tracepoint.h" |
09cee04b | 58 | #include "inf-loop.h" |
d5551862 | 59 | |
a58dd373 | 60 | /* Functions exported for general use, in inferior.h: */ |
c906108c | 61 | |
a14ed312 | 62 | void all_registers_info (char *, int); |
c906108c | 63 | |
a14ed312 | 64 | void registers_info (char *, int); |
c906108c | 65 | |
a58dd373 EZ |
66 | void nexti_command (char *, int); |
67 | ||
68 | void stepi_command (char *, int); | |
c906108c | 69 | |
a14ed312 | 70 | void continue_command (char *, int); |
c906108c | 71 | |
a58dd373 EZ |
72 | void interrupt_target_command (char *args, int from_tty); |
73 | ||
74 | /* Local functions: */ | |
75 | ||
76 | static void nofp_registers_info (char *, int); | |
77 | ||
c055b101 CV |
78 | static void print_return_value (struct type *func_type, |
79 | struct type *value_type); | |
11cf8741 | 80 | |
a14ed312 | 81 | static void until_next_command (int); |
c906108c | 82 | |
a14ed312 | 83 | static void until_command (char *, int); |
c906108c | 84 | |
a14ed312 | 85 | static void path_info (char *, int); |
c906108c | 86 | |
a14ed312 | 87 | static void path_command (char *, int); |
c906108c | 88 | |
a14ed312 | 89 | static void unset_command (char *, int); |
c906108c | 90 | |
a14ed312 | 91 | static void float_info (char *, int); |
c906108c | 92 | |
6ad8ae5c DJ |
93 | static void disconnect_command (char *, int); |
94 | ||
a14ed312 | 95 | static void unset_environment_command (char *, int); |
c906108c | 96 | |
a14ed312 | 97 | static void set_environment_command (char *, int); |
c906108c | 98 | |
a14ed312 | 99 | static void environment_info (char *, int); |
c906108c | 100 | |
a14ed312 | 101 | static void program_info (char *, int); |
c906108c | 102 | |
a14ed312 | 103 | static void finish_command (char *, int); |
c906108c | 104 | |
a14ed312 | 105 | static void signal_command (char *, int); |
c906108c | 106 | |
a14ed312 | 107 | static void jump_command (char *, int); |
c906108c | 108 | |
a14ed312 | 109 | static void step_1 (int, int, char *); |
3e43a32a MS |
110 | static void step_once (int skip_subroutines, int single_inst, |
111 | int count, int thread); | |
c906108c | 112 | |
a14ed312 | 113 | static void next_command (char *, int); |
c906108c | 114 | |
a14ed312 | 115 | static void step_command (char *, int); |
c906108c | 116 | |
a14ed312 | 117 | static void run_command (char *, int); |
c906108c | 118 | |
a14ed312 | 119 | static void run_no_args_command (char *args, int from_tty); |
392a587b | 120 | |
a14ed312 | 121 | static void go_command (char *line_no, int from_tty); |
392a587b | 122 | |
a14ed312 | 123 | static int strip_bg_char (char **); |
43ff13b4 | 124 | |
a14ed312 | 125 | void _initialize_infcmd (void); |
c906108c | 126 | |
c906108c | 127 | #define ERROR_NO_INFERIOR \ |
8a3fe4f8 | 128 | if (!target_has_execution) error (_("The program is not being run.")); |
c906108c | 129 | |
3e43a32a MS |
130 | /* Scratch area where string containing arguments to give to the |
131 | program will be stored by 'set args'. As soon as anything is | |
132 | stored, notice_args_set will move it into per-inferior storage. | |
1777feb0 | 133 | Arguments are separated by spaces. Empty string (pointer to '\0') |
3e43a32a | 134 | means no args. */ |
c906108c | 135 | |
3f81c18a | 136 | static char *inferior_args_scratch; |
c906108c | 137 | |
3f81c18a VP |
138 | /* Scratch area where 'set inferior-tty' will store user-provided value. |
139 | We'll immediate copy it into per-inferior storage. */ | |
552c04a7 | 140 | |
3f81c18a | 141 | static char *inferior_io_terminal_scratch; |
c906108c SS |
142 | |
143 | /* Pid of our debugged inferior, or 0 if no inferior now. | |
144 | Since various parts of infrun.c test this to see whether there is a program | |
145 | being debugged it should be nonzero (currently 3 is used) for remote | |
146 | debugging. */ | |
147 | ||
39f77062 | 148 | ptid_t inferior_ptid; |
c906108c | 149 | |
c906108c SS |
150 | /* Address at which inferior stopped. */ |
151 | ||
152 | CORE_ADDR stop_pc; | |
153 | ||
c906108c SS |
154 | /* Flag indicating that a command has proceeded the inferior past the |
155 | current breakpoint. */ | |
156 | ||
157 | int breakpoint_proceeded; | |
158 | ||
c906108c SS |
159 | /* Nonzero if stopped due to completion of a stack dummy routine. */ |
160 | ||
aa7d318d | 161 | enum stop_stack_kind stop_stack_dummy; |
c906108c SS |
162 | |
163 | /* Nonzero if stopped due to a random (unexpected) signal in inferior | |
164 | process. */ | |
165 | ||
166 | int stopped_by_random_signal; | |
167 | ||
c906108c | 168 | \f |
1777feb0 | 169 | /* Accessor routines. */ |
07091751 | 170 | |
3f81c18a VP |
171 | /* Set the io terminal for the current inferior. Ownership of |
172 | TERMINAL_NAME is not transferred. */ | |
173 | ||
3cb3b8df BR |
174 | void |
175 | set_inferior_io_terminal (const char *terminal_name) | |
176 | { | |
3f81c18a VP |
177 | xfree (current_inferior ()->terminal); |
178 | current_inferior ()->terminal = terminal_name ? xstrdup (terminal_name) : 0; | |
3cb3b8df BR |
179 | } |
180 | ||
181 | const char * | |
182 | get_inferior_io_terminal (void) | |
183 | { | |
3f81c18a VP |
184 | return current_inferior ()->terminal; |
185 | } | |
186 | ||
187 | static void | |
188 | set_inferior_tty_command (char *args, int from_tty, | |
189 | struct cmd_list_element *c) | |
190 | { | |
191 | /* CLI has assigned the user-provided value to inferior_io_terminal_scratch. | |
192 | Now route it to current inferior. */ | |
193 | set_inferior_io_terminal (inferior_io_terminal_scratch); | |
194 | } | |
195 | ||
196 | static void | |
197 | show_inferior_tty_command (struct ui_file *file, int from_tty, | |
198 | struct cmd_list_element *c, const char *value) | |
199 | { | |
200 | /* Note that we ignore the passed-in value in favor of computing it | |
201 | directly. */ | |
275f2e57 | 202 | const char *inferior_io_terminal = get_inferior_io_terminal (); |
abbb1732 | 203 | |
275f2e57 DJ |
204 | if (inferior_io_terminal == NULL) |
205 | inferior_io_terminal = ""; | |
3f81c18a | 206 | fprintf_filtered (gdb_stdout, |
275f2e57 DJ |
207 | _("Terminal for future runs of program being debugged " |
208 | "is \"%s\".\n"), inferior_io_terminal); | |
3cb3b8df BR |
209 | } |
210 | ||
07091751 FN |
211 | char * |
212 | get_inferior_args (void) | |
213 | { | |
3f81c18a | 214 | if (current_inferior ()->argc != 0) |
552c04a7 | 215 | { |
3f81c18a | 216 | char *n; |
552c04a7 | 217 | |
3f81c18a VP |
218 | n = construct_inferior_arguments (current_inferior ()->argc, |
219 | current_inferior ()->argv); | |
220 | set_inferior_args (n); | |
221 | xfree (n); | |
552c04a7 TT |
222 | } |
223 | ||
3f81c18a VP |
224 | if (current_inferior ()->args == NULL) |
225 | current_inferior ()->args = xstrdup (""); | |
552c04a7 | 226 | |
3f81c18a | 227 | return current_inferior ()->args; |
07091751 FN |
228 | } |
229 | ||
3f81c18a VP |
230 | /* Set the arguments for the current inferior. Ownership of |
231 | NEWARGS is not transferred. */ | |
232 | ||
233 | void | |
07091751 FN |
234 | set_inferior_args (char *newargs) |
235 | { | |
3f81c18a VP |
236 | xfree (current_inferior ()->args); |
237 | current_inferior ()->args = newargs ? xstrdup (newargs) : NULL; | |
238 | current_inferior ()->argc = 0; | |
239 | current_inferior ()->argv = 0; | |
07091751 | 240 | } |
c5aa993b | 241 | |
552c04a7 TT |
242 | void |
243 | set_inferior_args_vector (int argc, char **argv) | |
244 | { | |
3f81c18a VP |
245 | current_inferior ()->argc = argc; |
246 | current_inferior ()->argv = argv; | |
552c04a7 TT |
247 | } |
248 | ||
249 | /* Notice when `set args' is run. */ | |
250 | static void | |
3f81c18a | 251 | set_args_command (char *args, int from_tty, struct cmd_list_element *c) |
552c04a7 | 252 | { |
3f81c18a VP |
253 | /* CLI has assigned the user-provided value to inferior_args_scratch. |
254 | Now route it to current inferior. */ | |
255 | set_inferior_args (inferior_args_scratch); | |
552c04a7 TT |
256 | } |
257 | ||
258 | /* Notice when `show args' is run. */ | |
259 | static void | |
3f81c18a VP |
260 | show_args_command (struct ui_file *file, int from_tty, |
261 | struct cmd_list_element *c, const char *value) | |
552c04a7 | 262 | { |
258c00cc TT |
263 | /* Note that we ignore the passed-in value in favor of computing it |
264 | directly. */ | |
265 | deprecated_show_value_hack (file, from_tty, c, get_inferior_args ()); | |
552c04a7 TT |
266 | } |
267 | ||
c2a727fa TT |
268 | \f |
269 | /* Compute command-line string given argument vector. This does the | |
270 | same shell processing as fork_inferior. */ | |
c2a727fa | 271 | char * |
bd57a748 | 272 | construct_inferior_arguments (int argc, char **argv) |
c2a727fa TT |
273 | { |
274 | char *result; | |
275 | ||
276 | if (STARTUP_WITH_SHELL) | |
277 | { | |
278 | /* This holds all the characters considered special to the | |
279 | typical Unix shells. We include `^' because the SunOS | |
280 | /bin/sh treats it as a synonym for `|'. */ | |
281 | char *special = "\"!#$&*()\\|[]{}<>?'\"`~^; \t\n"; | |
282 | int i; | |
283 | int length = 0; | |
284 | char *out, *cp; | |
285 | ||
286 | /* We over-compute the size. It shouldn't matter. */ | |
287 | for (i = 0; i < argc; ++i) | |
c2226152 | 288 | length += 3 * strlen (argv[i]) + 1 + 2 * (argv[i][0] == '\0'); |
c2a727fa TT |
289 | |
290 | result = (char *) xmalloc (length); | |
291 | out = result; | |
292 | ||
293 | for (i = 0; i < argc; ++i) | |
294 | { | |
295 | if (i > 0) | |
296 | *out++ = ' '; | |
297 | ||
03c6228e AS |
298 | /* Need to handle empty arguments specially. */ |
299 | if (argv[i][0] == '\0') | |
c2a727fa | 300 | { |
03c6228e AS |
301 | *out++ = '\''; |
302 | *out++ = '\''; | |
303 | } | |
304 | else | |
305 | { | |
306 | for (cp = argv[i]; *cp; ++cp) | |
307 | { | |
c2226152 AS |
308 | if (*cp == '\n') |
309 | { | |
310 | /* A newline cannot be quoted with a backslash (it | |
311 | just disappears), only by putting it inside | |
312 | quotes. */ | |
313 | *out++ = '\''; | |
314 | *out++ = '\n'; | |
315 | *out++ = '\''; | |
316 | } | |
317 | else | |
318 | { | |
319 | if (strchr (special, *cp) != NULL) | |
320 | *out++ = '\\'; | |
321 | *out++ = *cp; | |
322 | } | |
03c6228e | 323 | } |
c2a727fa TT |
324 | } |
325 | } | |
326 | *out = '\0'; | |
327 | } | |
328 | else | |
329 | { | |
330 | /* In this case we can't handle arguments that contain spaces, | |
331 | tabs, or newlines -- see breakup_args(). */ | |
332 | int i; | |
333 | int length = 0; | |
334 | ||
335 | for (i = 0; i < argc; ++i) | |
336 | { | |
337 | char *cp = strchr (argv[i], ' '); | |
338 | if (cp == NULL) | |
339 | cp = strchr (argv[i], '\t'); | |
340 | if (cp == NULL) | |
341 | cp = strchr (argv[i], '\n'); | |
342 | if (cp != NULL) | |
3e43a32a MS |
343 | error (_("can't handle command-line " |
344 | "argument containing whitespace")); | |
c2a727fa TT |
345 | length += strlen (argv[i]) + 1; |
346 | } | |
347 | ||
348 | result = (char *) xmalloc (length); | |
349 | result[0] = '\0'; | |
350 | for (i = 0; i < argc; ++i) | |
351 | { | |
352 | if (i > 0) | |
353 | strcat (result, " "); | |
354 | strcat (result, argv[i]); | |
355 | } | |
356 | } | |
357 | ||
358 | return result; | |
359 | } | |
552c04a7 TT |
360 | \f |
361 | ||
43ff13b4 JM |
362 | /* This function detects whether or not a '&' character (indicating |
363 | background execution) has been added as *the last* of the arguments ARGS | |
1777feb0 MS |
364 | of a command. If it has, it removes it and returns 1. Otherwise it |
365 | does nothing and returns 0. */ | |
c5aa993b | 366 | static int |
fba45db2 | 367 | strip_bg_char (char **args) |
43ff13b4 JM |
368 | { |
369 | char *p = NULL; | |
c5aa993b | 370 | |
9846de1b | 371 | p = strchr (*args, '&'); |
c5aa993b | 372 | |
9846de1b | 373 | if (p) |
43ff13b4 JM |
374 | { |
375 | if (p == (*args + strlen (*args) - 1)) | |
376 | { | |
c5aa993b | 377 | if (strlen (*args) > 1) |
43ff13b4 JM |
378 | { |
379 | do | |
380 | p--; | |
381 | while (*p == ' ' || *p == '\t'); | |
382 | *(p + 1) = '\0'; | |
383 | } | |
384 | else | |
385 | *args = 0; | |
386 | return 1; | |
387 | } | |
388 | } | |
389 | return 0; | |
390 | } | |
391 | ||
281b533b DJ |
392 | /* Common actions to take after creating any sort of inferior, by any |
393 | means (running, attaching, connecting, et cetera). The target | |
394 | should be stopped. */ | |
395 | ||
396 | void | |
397 | post_create_inferior (struct target_ops *target, int from_tty) | |
398 | { | |
ce406537 PA |
399 | volatile struct gdb_exception ex; |
400 | ||
b79599ff DP |
401 | /* Be sure we own the terminal in case write operations are performed. */ |
402 | target_terminal_ours (); | |
403 | ||
424163ea DJ |
404 | /* If the target hasn't taken care of this already, do it now. |
405 | Targets which need to access registers during to_open, | |
406 | to_create_inferior, or to_attach should do it earlier; but many | |
407 | don't need to. */ | |
408 | target_find_description (); | |
409 | ||
ce406537 PA |
410 | /* Now that we know the register layout, retrieve current PC. But |
411 | if the PC is unavailable (e.g., we're opening a core file with | |
412 | missing registers info), ignore it. */ | |
413 | stop_pc = 0; | |
414 | TRY_CATCH (ex, RETURN_MASK_ERROR) | |
415 | { | |
416 | stop_pc = regcache_read_pc (get_current_regcache ()); | |
417 | } | |
418 | if (ex.reason < 0 && ex.error != NOT_AVAILABLE_ERROR) | |
419 | throw_exception (ex); | |
f698437e | 420 | |
50c71eaf PA |
421 | if (exec_bfd) |
422 | { | |
9353355f DJ |
423 | /* Create the hooks to handle shared library load and unload |
424 | events. */ | |
425 | #ifdef SOLIB_CREATE_INFERIOR_HOOK | |
37706b70 | 426 | SOLIB_CREATE_INFERIOR_HOOK (PIDGET (inferior_ptid)); |
9353355f | 427 | #else |
268a4a75 JK |
428 | solib_create_inferior_hook (from_tty); |
429 | #endif | |
430 | } | |
431 | ||
432 | /* If the solist is global across processes, there's no need to | |
433 | refetch it here. */ | |
434 | if (exec_bfd && !gdbarch_has_global_solist (target_gdbarch)) | |
435 | { | |
436 | /* Sometimes the platform-specific hook loads initial shared | |
437 | libraries, and sometimes it doesn't. If it doesn't FROM_TTY will be | |
438 | incorrectly 0 but such solib targets should be fixed anyway. If we | |
439 | made all the inferior hook methods consistent, this call could be | |
440 | removed. Call it only after the solib target has been initialized by | |
441 | solib_create_inferior_hook. */ | |
442 | ||
443 | #ifdef SOLIB_ADD | |
444 | SOLIB_ADD (NULL, 0, target, auto_solib_add); | |
445 | #else | |
446 | solib_add (NULL, 0, target, auto_solib_add); | |
9353355f | 447 | #endif |
9353355f DJ |
448 | } |
449 | ||
ea5d7a99 PM |
450 | /* If the user sets watchpoints before execution having started, |
451 | then she gets software watchpoints, because GDB can't know which | |
452 | target will end up being pushed, or if it supports hardware | |
453 | watchpoints or not. breakpoint_re_set takes care of promoting | |
454 | watchpoints to hardware watchpoints if possible, however, if this | |
455 | new inferior doesn't load shared libraries or we don't pull in | |
456 | symbols from any other source on this target/arch, | |
457 | breakpoint_re_set is never called. Call it now so that software | |
458 | watchpoints get a chance to be promoted to hardware watchpoints | |
459 | if the now pushed target supports hardware watchpoints. */ | |
460 | breakpoint_re_set (); | |
461 | ||
281b533b DJ |
462 | observer_notify_inferior_created (target, from_tty); |
463 | } | |
464 | ||
a4d5f2e0 JB |
465 | /* Kill the inferior if already running. This function is designed |
466 | to be called when we are about to start the execution of the program | |
467 | from the beginning. Ask the user to confirm that he wants to restart | |
468 | the program being debugged when FROM_TTY is non-null. */ | |
c906108c | 469 | |
8edfe269 | 470 | static void |
a4d5f2e0 JB |
471 | kill_if_already_running (int from_tty) |
472 | { | |
39f77062 | 473 | if (! ptid_equal (inferior_ptid, null_ptid) && target_has_execution) |
c906108c | 474 | { |
8edfe269 DJ |
475 | /* Bail out before killing the program if we will not be able to |
476 | restart it. */ | |
477 | target_require_runnable (); | |
478 | ||
adf40b2e | 479 | if (from_tty |
9e2f0ad4 HZ |
480 | && !query (_("The program being debugged has been started already.\n\ |
481 | Start it from the beginning? "))) | |
8a3fe4f8 | 482 | error (_("Program not restarted.")); |
c906108c | 483 | target_kill (); |
c906108c | 484 | } |
a4d5f2e0 JB |
485 | } |
486 | ||
1777feb0 | 487 | /* Implement the "run" command. If TBREAK_AT_MAIN is set, then insert |
f67a969f JB |
488 | a temporary breakpoint at the begining of the main program before |
489 | running the program. */ | |
490 | ||
a4d5f2e0 | 491 | static void |
f67a969f | 492 | run_command_1 (char *args, int from_tty, int tbreak_at_main) |
a4d5f2e0 JB |
493 | { |
494 | char *exec_file; | |
29f49a6a PA |
495 | struct cleanup *old_chain; |
496 | ptid_t ptid; | |
c906108c | 497 | |
a4d5f2e0 JB |
498 | dont_repeat (); |
499 | ||
500 | kill_if_already_running (from_tty); | |
3c35e65b UW |
501 | |
502 | init_wait_for_inferior (); | |
c906108c SS |
503 | clear_breakpoint_hit_counts (); |
504 | ||
fd79ecee DJ |
505 | /* Clean up any leftovers from other runs. Some other things from |
506 | this function should probably be moved into target_pre_inferior. */ | |
507 | target_pre_inferior (from_tty); | |
508 | ||
39ad761d JB |
509 | /* The comment here used to read, "The exec file is re-read every |
510 | time we do a generic_mourn_inferior, so we just have to worry | |
511 | about the symbol file." The `generic_mourn_inferior' function | |
512 | gets called whenever the program exits. However, suppose the | |
513 | program exits, and *then* the executable file changes? We need | |
514 | to check again here. Since reopen_exec_file doesn't do anything | |
515 | if the timestamp hasn't changed, I don't see the harm. */ | |
516 | reopen_exec_file (); | |
c906108c SS |
517 | reread_symbols (); |
518 | ||
f67a969f JB |
519 | /* Insert the temporary breakpoint if a location was specified. */ |
520 | if (tbreak_at_main) | |
521 | tbreak_command (main_name (), 0); | |
522 | ||
39ad761d JB |
523 | exec_file = (char *) get_exec_file (0); |
524 | ||
9908b566 VP |
525 | if (non_stop && !target_supports_non_stop ()) |
526 | error (_("The target does not support running in non-stop mode.")); | |
527 | ||
c906108c SS |
528 | /* We keep symbols from add-symbol-file, on the grounds that the |
529 | user might want to add some symbols before running the program | |
530 | (right?). But sometimes (dynamic loading where the user manually | |
531 | introduces the new symbols with add-symbol-file), the code which | |
532 | the symbols describe does not persist between runs. Currently | |
533 | the user has to manually nuke all symbols between runs if they | |
534 | want them to go away (PR 2207). This is probably reasonable. */ | |
535 | ||
43ff13b4 | 536 | if (!args) |
6426a772 | 537 | { |
362646f5 | 538 | if (target_can_async_p ()) |
6426a772 JM |
539 | async_disable_stdin (); |
540 | } | |
43ff13b4 | 541 | else |
c906108c | 542 | { |
43ff13b4 JM |
543 | int async_exec = strip_bg_char (&args); |
544 | ||
545 | /* If we get a request for running in the bg but the target | |
1777feb0 | 546 | doesn't support it, error out. */ |
362646f5 | 547 | if (async_exec && !target_can_async_p ()) |
8a3fe4f8 | 548 | error (_("Asynchronous execution not supported on this target.")); |
43ff13b4 JM |
549 | |
550 | /* If we don't get a request of running in the bg, then we need | |
1777feb0 | 551 | to simulate synchronous (fg) execution. */ |
362646f5 | 552 | if (!async_exec && target_can_async_p ()) |
43ff13b4 | 553 | { |
1777feb0 | 554 | /* Simulate synchronous execution. */ |
6426a772 | 555 | async_disable_stdin (); |
43ff13b4 JM |
556 | } |
557 | ||
1777feb0 | 558 | /* If there were other args, beside '&', process them. */ |
43ff13b4 | 559 | if (args) |
3f81c18a | 560 | set_inferior_args (args); |
c906108c SS |
561 | } |
562 | ||
563 | if (from_tty) | |
564 | { | |
8b93c638 JM |
565 | ui_out_field_string (uiout, NULL, "Starting program"); |
566 | ui_out_text (uiout, ": "); | |
567 | if (exec_file) | |
568 | ui_out_field_string (uiout, "execfile", exec_file); | |
569 | ui_out_spaces (uiout, 1); | |
552c04a7 TT |
570 | /* We call get_inferior_args() because we might need to compute |
571 | the value now. */ | |
572 | ui_out_field_string (uiout, "infargs", get_inferior_args ()); | |
8b93c638 JM |
573 | ui_out_text (uiout, "\n"); |
574 | ui_out_flush (uiout); | |
c906108c SS |
575 | } |
576 | ||
552c04a7 TT |
577 | /* We call get_inferior_args() because we might need to compute |
578 | the value now. */ | |
579 | target_create_inferior (exec_file, get_inferior_args (), | |
3e43a32a MS |
580 | environ_vector (current_inferior ()->environment), |
581 | from_tty); | |
281b533b | 582 | |
29f49a6a PA |
583 | /* We're starting off a new process. When we get out of here, in |
584 | non-stop mode, finish the state of all threads of that process, | |
585 | but leave other threads alone, as they may be stopped in internal | |
586 | events --- the frontend shouldn't see them as stopped. In | |
587 | all-stop, always finish the state of all threads, as we may be | |
588 | resuming more than just the new process. */ | |
589 | if (non_stop) | |
590 | ptid = pid_to_ptid (ptid_get_pid (inferior_ptid)); | |
591 | else | |
592 | ptid = minus_one_ptid; | |
593 | old_chain = make_cleanup (finish_thread_state_cleanup, &ptid); | |
594 | ||
de1b3c3d PA |
595 | /* Pass zero for FROM_TTY, because at this point the "run" command |
596 | has done its thing; now we are setting up the running program. */ | |
597 | post_create_inferior (¤t_target, 0); | |
281b533b | 598 | |
74d1f91e JK |
599 | /* Start the target running. Do not use -1 continuation as it would skip |
600 | breakpoint right at the entry point. */ | |
601 | proceed (regcache_read_pc (get_current_regcache ()), TARGET_SIGNAL_0, 0); | |
c906108c | 602 | |
29f49a6a PA |
603 | /* Since there was no error, there's no need to finish the thread |
604 | states here. */ | |
605 | discard_cleanups (old_chain); | |
606 | } | |
c906108c | 607 | |
f67a969f JB |
608 | static void |
609 | run_command (char *args, int from_tty) | |
610 | { | |
611 | run_command_1 (args, from_tty, 0); | |
612 | } | |
613 | ||
c906108c | 614 | static void |
fba45db2 | 615 | run_no_args_command (char *args, int from_tty) |
c906108c | 616 | { |
3f81c18a | 617 | set_inferior_args (""); |
c906108c | 618 | } |
c906108c | 619 | \f |
c5aa993b | 620 | |
a4d5f2e0 JB |
621 | /* Start the execution of the program up until the beginning of the main |
622 | program. */ | |
623 | ||
624 | static void | |
625 | start_command (char *args, int from_tty) | |
626 | { | |
627 | /* Some languages such as Ada need to search inside the program | |
628 | minimal symbols for the location where to put the temporary | |
629 | breakpoint before starting. */ | |
630 | if (!have_minimal_symbols ()) | |
8a3fe4f8 | 631 | error (_("No symbol table loaded. Use the \"file\" command.")); |
a4d5f2e0 | 632 | |
f67a969f JB |
633 | /* Run the program until reaching the main procedure... */ |
634 | run_command_1 (args, from_tty, 1); | |
a4d5f2e0 JB |
635 | } |
636 | ||
8cae4b3f PA |
637 | static int |
638 | proceed_thread_callback (struct thread_info *thread, void *arg) | |
639 | { | |
74531fed PA |
640 | /* We go through all threads individually instead of compressing |
641 | into a single target `resume_all' request, because some threads | |
642 | may be stopped in internal breakpoints/events, or stopped waiting | |
643 | for its turn in the displaced stepping queue (that is, they are | |
644 | running && !executing). The target side has no idea about why | |
645 | the thread is stopped, so a `resume_all' command would resume too | |
646 | much. If/when GDB gains a way to tell the target `hold this | |
647 | thread stopped until I say otherwise', then we can optimize | |
648 | this. */ | |
4f8d22e3 | 649 | if (!is_stopped (thread->ptid)) |
8cae4b3f PA |
650 | return 0; |
651 | ||
dcf4fbde | 652 | switch_to_thread (thread->ptid); |
8cae4b3f PA |
653 | clear_proceed_status (); |
654 | proceed ((CORE_ADDR) -1, TARGET_SIGNAL_DEFAULT, 0); | |
655 | return 0; | |
656 | } | |
657 | ||
d729566a PA |
658 | void |
659 | ensure_valid_thread (void) | |
660 | { | |
661 | if (ptid_equal (inferior_ptid, null_ptid) | |
662 | || is_exited (inferior_ptid)) | |
3e43a32a | 663 | error (_("Cannot execute this command without a live selected thread.")); |
d729566a PA |
664 | } |
665 | ||
573cda03 | 666 | /* If the user is looking at trace frames, any resumption of execution |
1777feb0 | 667 | is likely to mix up recorded and live target data. So simply |
573cda03 SS |
668 | disallow those commands. */ |
669 | ||
670 | void | |
671 | ensure_not_tfind_mode (void) | |
672 | { | |
673 | if (get_traceframe_number () >= 0) | |
3e43a32a | 674 | error (_("Cannot execute this command while looking at trace frames.")); |
573cda03 SS |
675 | } |
676 | ||
77ebaa5a VP |
677 | void |
678 | continue_1 (int all_threads) | |
679 | { | |
3d488bfc | 680 | ERROR_NO_INFERIOR; |
573cda03 | 681 | ensure_not_tfind_mode (); |
3d488bfc | 682 | |
77ebaa5a VP |
683 | if (non_stop && all_threads) |
684 | { | |
685 | /* Don't error out if the current thread is running, because | |
abbb1732 | 686 | there may be other stopped threads. */ |
77ebaa5a VP |
687 | struct cleanup *old_chain; |
688 | ||
689 | /* Backup current thread and selected frame. */ | |
690 | old_chain = make_cleanup_restore_current_thread (); | |
691 | ||
692 | iterate_over_threads (proceed_thread_callback, NULL); | |
693 | ||
694 | /* Restore selected ptid. */ | |
695 | do_cleanups (old_chain); | |
696 | } | |
697 | else | |
698 | { | |
d729566a | 699 | ensure_valid_thread (); |
77ebaa5a VP |
700 | ensure_not_running (); |
701 | clear_proceed_status (); | |
702 | proceed ((CORE_ADDR) -1, TARGET_SIGNAL_DEFAULT, 0); | |
703 | } | |
704 | } | |
705 | ||
8cae4b3f | 706 | /* continue [-a] [proceed-count] [&] */ |
c906108c | 707 | void |
8cae4b3f | 708 | continue_command (char *args, int from_tty) |
c906108c | 709 | { |
c5aa993b | 710 | int async_exec = 0; |
8cae4b3f | 711 | int all_threads = 0; |
c906108c SS |
712 | ERROR_NO_INFERIOR; |
713 | ||
1777feb0 | 714 | /* Find out whether we must run in the background. */ |
8cae4b3f PA |
715 | if (args != NULL) |
716 | async_exec = strip_bg_char (&args); | |
43ff13b4 JM |
717 | |
718 | /* If we must run in the background, but the target can't do it, | |
1777feb0 | 719 | error out. */ |
362646f5 | 720 | if (async_exec && !target_can_async_p ()) |
8a3fe4f8 | 721 | error (_("Asynchronous execution not supported on this target.")); |
43ff13b4 JM |
722 | |
723 | /* If we are not asked to run in the bg, then prepare to run in the | |
1777feb0 | 724 | foreground, synchronously. */ |
362646f5 | 725 | if (!async_exec && target_can_async_p ()) |
c5aa993b | 726 | { |
1777feb0 | 727 | /* Simulate synchronous execution. */ |
6426a772 | 728 | async_disable_stdin (); |
43ff13b4 | 729 | } |
c906108c | 730 | |
8cae4b3f PA |
731 | if (args != NULL) |
732 | { | |
733 | if (strncmp (args, "-a", sizeof ("-a") - 1) == 0) | |
734 | { | |
735 | all_threads = 1; | |
736 | args += sizeof ("-a") - 1; | |
737 | if (*args == '\0') | |
738 | args = NULL; | |
739 | } | |
740 | } | |
741 | ||
742 | if (!non_stop && all_threads) | |
743 | error (_("`-a' is meaningless in all-stop mode.")); | |
744 | ||
745 | if (args != NULL && all_threads) | |
3e43a32a MS |
746 | error (_("Can't resume all threads and specify " |
747 | "proceed count simultaneously.")); | |
8cae4b3f PA |
748 | |
749 | /* If we have an argument left, set proceed count of breakpoint we | |
750 | stopped at. */ | |
751 | if (args != NULL) | |
c906108c | 752 | { |
347bddb7 | 753 | bpstat bs = NULL; |
8671a17b PA |
754 | int num, stat; |
755 | int stopped = 0; | |
347bddb7 PA |
756 | struct thread_info *tp; |
757 | ||
758 | if (non_stop) | |
e09875d4 | 759 | tp = find_thread_ptid (inferior_ptid); |
347bddb7 PA |
760 | else |
761 | { | |
762 | ptid_t last_ptid; | |
763 | struct target_waitstatus ws; | |
764 | ||
765 | get_last_target_status (&last_ptid, &ws); | |
e09875d4 | 766 | tp = find_thread_ptid (last_ptid); |
347bddb7 PA |
767 | } |
768 | if (tp != NULL) | |
16c381f0 | 769 | bs = tp->control.stop_bpstat; |
8671a17b PA |
770 | |
771 | while ((stat = bpstat_num (&bs, &num)) != 0) | |
772 | if (stat > 0) | |
773 | { | |
774 | set_ignore_count (num, | |
8cae4b3f | 775 | parse_and_eval_long (args) - 1, |
8671a17b PA |
776 | from_tty); |
777 | /* set_ignore_count prints a message ending with a period. | |
778 | So print two spaces before "Continuing.". */ | |
779 | if (from_tty) | |
780 | printf_filtered (" "); | |
781 | stopped = 1; | |
782 | } | |
783 | ||
784 | if (!stopped && from_tty) | |
c906108c SS |
785 | { |
786 | printf_filtered | |
787 | ("Not stopped at any breakpoint; argument ignored.\n"); | |
788 | } | |
c906108c SS |
789 | } |
790 | ||
791 | if (from_tty) | |
a3f17187 | 792 | printf_filtered (_("Continuing.\n")); |
c906108c | 793 | |
77ebaa5a | 794 | continue_1 (all_threads); |
c906108c SS |
795 | } |
796 | \f | |
edb3359d DJ |
797 | /* Record the starting point of a "step" or "next" command. */ |
798 | ||
799 | static void | |
800 | set_step_frame (void) | |
801 | { | |
802 | struct symtab_and_line sal; | |
803 | ||
804 | find_frame_sal (get_current_frame (), &sal); | |
805 | set_step_info (get_current_frame (), sal); | |
806 | } | |
807 | ||
c906108c SS |
808 | /* Step until outside of current statement. */ |
809 | ||
c906108c | 810 | static void |
fba45db2 | 811 | step_command (char *count_string, int from_tty) |
c906108c SS |
812 | { |
813 | step_1 (0, 0, count_string); | |
814 | } | |
815 | ||
816 | /* Likewise, but skip over subroutine calls as if single instructions. */ | |
817 | ||
c906108c | 818 | static void |
fba45db2 | 819 | next_command (char *count_string, int from_tty) |
c906108c SS |
820 | { |
821 | step_1 (1, 0, count_string); | |
822 | } | |
823 | ||
824 | /* Likewise, but step only one instruction. */ | |
825 | ||
c906108c | 826 | void |
fba45db2 | 827 | stepi_command (char *count_string, int from_tty) |
c906108c SS |
828 | { |
829 | step_1 (0, 1, count_string); | |
830 | } | |
831 | ||
c906108c | 832 | void |
fba45db2 | 833 | nexti_command (char *count_string, int from_tty) |
c906108c SS |
834 | { |
835 | step_1 (1, 1, count_string); | |
836 | } | |
837 | ||
186c406b | 838 | void |
611c83ae | 839 | delete_longjmp_breakpoint_cleanup (void *arg) |
74b7792f | 840 | { |
611c83ae PA |
841 | int thread = * (int *) arg; |
842 | delete_longjmp_breakpoint (thread); | |
74b7792f AC |
843 | } |
844 | ||
c906108c | 845 | static void |
fba45db2 | 846 | step_1 (int skip_subroutines, int single_inst, char *count_string) |
c906108c | 847 | { |
52f0bd74 | 848 | int count = 1; |
f107f563 | 849 | struct cleanup *cleanups = make_cleanup (null_cleanup, NULL); |
43ff13b4 | 850 | int async_exec = 0; |
b3dc826b | 851 | int thread = -1; |
c5aa993b | 852 | |
c906108c | 853 | ERROR_NO_INFERIOR; |
573cda03 | 854 | ensure_not_tfind_mode (); |
d729566a | 855 | ensure_valid_thread (); |
94cc34af | 856 | ensure_not_running (); |
43ff13b4 JM |
857 | |
858 | if (count_string) | |
859 | async_exec = strip_bg_char (&count_string); | |
c5aa993b | 860 | |
43ff13b4 | 861 | /* If we get a request for running in the bg but the target |
1777feb0 | 862 | doesn't support it, error out. */ |
362646f5 | 863 | if (async_exec && !target_can_async_p ()) |
8a3fe4f8 | 864 | error (_("Asynchronous execution not supported on this target.")); |
43ff13b4 JM |
865 | |
866 | /* If we don't get a request of running in the bg, then we need | |
1777feb0 | 867 | to simulate synchronous (fg) execution. */ |
362646f5 | 868 | if (!async_exec && target_can_async_p ()) |
43ff13b4 | 869 | { |
1777feb0 | 870 | /* Simulate synchronous execution. */ |
6426a772 | 871 | async_disable_stdin (); |
43ff13b4 JM |
872 | } |
873 | ||
bb518678 | 874 | count = count_string ? parse_and_eval_long (count_string) : 1; |
c906108c | 875 | |
1777feb0 | 876 | if (!single_inst || skip_subroutines) /* Leave si command alone. */ |
c906108c | 877 | { |
186c406b TT |
878 | struct thread_info *tp = inferior_thread (); |
879 | ||
611c83ae | 880 | if (in_thread_list (inferior_ptid)) |
b3dc826b | 881 | thread = pid_to_thread_id (inferior_ptid); |
611c83ae | 882 | |
186c406b | 883 | set_longjmp_breakpoint (tp, get_frame_id (get_current_frame ())); |
611c83ae | 884 | |
b3dc826b | 885 | make_cleanup (delete_longjmp_breakpoint_cleanup, &thread); |
c2d11a7d JM |
886 | } |
887 | ||
37d94800 | 888 | /* In synchronous case, all is well; each step_once call will step once. */ |
362646f5 | 889 | if (!target_can_async_p ()) |
c2d11a7d JM |
890 | { |
891 | for (; count > 0; count--) | |
892 | { | |
37d94800 | 893 | step_once (skip_subroutines, single_inst, count, thread); |
c2d11a7d | 894 | |
751b8ce1 PA |
895 | if (!target_has_execution) |
896 | break; | |
c2d11a7d JM |
897 | else |
898 | { | |
751b8ce1 PA |
899 | struct thread_info *tp = inferior_thread (); |
900 | ||
901 | if (!tp->control.stop_step || !tp->step_multi) | |
902 | { | |
903 | /* If we stopped for some reason that is not stepping | |
904 | there are no further steps to make. */ | |
905 | tp->step_multi = 0; | |
906 | break; | |
907 | } | |
c2d11a7d | 908 | } |
c2d11a7d JM |
909 | } |
910 | ||
f107f563 | 911 | do_cleanups (cleanups); |
c2d11a7d | 912 | } |
c2d11a7d JM |
913 | else |
914 | { | |
37d94800 PA |
915 | /* In the case of an asynchronous target things get complicated; |
916 | do only one step for now, before returning control to the | |
917 | event loop. Let the continuation figure out how many other | |
918 | steps we need to do, and handle them one at the time, through | |
919 | step_once. */ | |
b3dc826b | 920 | step_once (skip_subroutines, single_inst, count, thread); |
37d94800 | 921 | |
611c83ae | 922 | /* We are running, and the continuation is installed. It will |
f107f563 VP |
923 | disable the longjmp breakpoint as appropriate. */ |
924 | discard_cleanups (cleanups); | |
c906108c | 925 | } |
c2d11a7d | 926 | } |
c906108c | 927 | |
bfec99b2 PA |
928 | struct step_1_continuation_args |
929 | { | |
930 | int count; | |
931 | int skip_subroutines; | |
932 | int single_inst; | |
933 | int thread; | |
934 | }; | |
935 | ||
c2d11a7d JM |
936 | /* Called after we are done with one step operation, to check whether |
937 | we need to step again, before we print the prompt and return control | |
1777feb0 MS |
938 | to the user. If count is > 1, we will need to do one more call to |
939 | proceed(), via step_once(). Basically it is like step_once and | |
940 | step_1_continuation are co-recursive. */ | |
c2d11a7d | 941 | static void |
604ead4a | 942 | step_1_continuation (void *args) |
c2d11a7d | 943 | { |
bfec99b2 | 944 | struct step_1_continuation_args *a = args; |
f13468d9 | 945 | |
af679fd0 | 946 | if (target_has_execution) |
f13468d9 | 947 | { |
af679fd0 PA |
948 | struct thread_info *tp; |
949 | ||
950 | tp = inferior_thread (); | |
16c381f0 | 951 | if (tp->step_multi && tp->control.stop_step) |
af679fd0 PA |
952 | { |
953 | /* There are more steps to make, and we did stop due to | |
954 | ending a stepping range. Do another step. */ | |
37d94800 PA |
955 | step_once (a->skip_subroutines, a->single_inst, |
956 | a->count - 1, a->thread); | |
af679fd0 PA |
957 | return; |
958 | } | |
959 | tp->step_multi = 0; | |
f107f563 | 960 | } |
af679fd0 PA |
961 | |
962 | /* We either stopped for some reason that is not stepping, or there | |
963 | are no further steps to make. Cleanup. */ | |
964 | if (!a->single_inst || a->skip_subroutines) | |
965 | delete_longjmp_breakpoint (a->thread); | |
c2d11a7d JM |
966 | } |
967 | ||
37d94800 PA |
968 | /* Do just one step operation. This is useful to implement the 'step |
969 | n' kind of commands. In case of asynchronous targets, we will have | |
970 | to set up a continuation to be done after the target stops (after | |
971 | this one step). For synch targets, the caller handles further | |
972 | stepping. */ | |
973 | ||
974 | static void | |
611c83ae | 975 | step_once (int skip_subroutines, int single_inst, int count, int thread) |
bfec99b2 | 976 | { |
edb3359d | 977 | struct frame_info *frame = get_current_frame (); |
c2d11a7d JM |
978 | |
979 | if (count > 0) | |
c906108c | 980 | { |
4e1c45ea PA |
981 | /* Don't assume THREAD is a valid thread id. It is set to -1 if |
982 | the longjmp breakpoint was not required. Use the | |
983 | INFERIOR_PTID thread instead, which is the same thread when | |
984 | THREAD is set. */ | |
985 | struct thread_info *tp = inferior_thread (); | |
abbb1732 | 986 | |
c906108c | 987 | clear_proceed_status (); |
edb3359d | 988 | set_step_frame (); |
c906108c | 989 | |
c5aa993b | 990 | if (!single_inst) |
c906108c | 991 | { |
1641cfcc PA |
992 | CORE_ADDR pc; |
993 | ||
edb3359d DJ |
994 | /* Step at an inlined function behaves like "down". */ |
995 | if (!skip_subroutines && !single_inst | |
996 | && inline_skipped_frames (inferior_ptid)) | |
997 | { | |
09cee04b PA |
998 | ptid_t resume_ptid; |
999 | ||
1000 | /* Pretend that we've ran. */ | |
1001 | resume_ptid = user_visible_resume_ptid (1); | |
1002 | set_running (resume_ptid, 1); | |
1003 | ||
edb3359d DJ |
1004 | step_into_inline_frame (inferior_ptid); |
1005 | if (count > 1) | |
1006 | step_once (skip_subroutines, single_inst, count - 1, thread); | |
1007 | else | |
09cee04b PA |
1008 | { |
1009 | /* Pretend that we've stopped. */ | |
1010 | normal_stop (); | |
1011 | ||
1012 | if (target_can_async_p ()) | |
1013 | inferior_event_handler (INF_EXEC_COMPLETE, NULL); | |
1014 | } | |
edb3359d DJ |
1015 | return; |
1016 | } | |
1017 | ||
1641cfcc PA |
1018 | pc = get_frame_pc (frame); |
1019 | find_pc_line_pc_range (pc, | |
16c381f0 JK |
1020 | &tp->control.step_range_start, |
1021 | &tp->control.step_range_end); | |
5fbbeb29 CF |
1022 | |
1023 | /* If we have no line info, switch to stepi mode. */ | |
16c381f0 JK |
1024 | if (tp->control.step_range_end == 0 && step_stop_if_no_debug) |
1025 | tp->control.step_range_start = tp->control.step_range_end = 1; | |
1026 | else if (tp->control.step_range_end == 0) | |
c906108c SS |
1027 | { |
1028 | char *name; | |
abbb1732 | 1029 | |
1641cfcc | 1030 | if (find_pc_partial_function (pc, &name, |
16c381f0 JK |
1031 | &tp->control.step_range_start, |
1032 | &tp->control.step_range_end) == 0) | |
8a3fe4f8 | 1033 | error (_("Cannot find bounds of current function")); |
c906108c SS |
1034 | |
1035 | target_terminal_ours (); | |
3e43a32a MS |
1036 | printf_filtered (_("Single stepping until exit from function %s," |
1037 | "\nwhich has no line number information.\n"), | |
1038 | name); | |
c906108c SS |
1039 | } |
1040 | } | |
1041 | else | |
1042 | { | |
1043 | /* Say we are stepping, but stop after one insn whatever it does. */ | |
16c381f0 | 1044 | tp->control.step_range_start = tp->control.step_range_end = 1; |
c906108c SS |
1045 | if (!skip_subroutines) |
1046 | /* It is stepi. | |
1047 | Don't step over function calls, not even to functions lacking | |
1048 | line numbers. */ | |
16c381f0 | 1049 | tp->control.step_over_calls = STEP_OVER_NONE; |
c906108c SS |
1050 | } |
1051 | ||
1052 | if (skip_subroutines) | |
16c381f0 | 1053 | tp->control.step_over_calls = STEP_OVER_ALL; |
c906108c | 1054 | |
95e54da7 | 1055 | tp->step_multi = (count > 1); |
f107f563 | 1056 | proceed ((CORE_ADDR) -1, TARGET_SIGNAL_DEFAULT, 1); |
bfec99b2 | 1057 | |
37d94800 PA |
1058 | /* For async targets, register a continuation to do any |
1059 | additional steps. For sync targets, the caller will handle | |
1060 | further stepping. */ | |
1061 | if (target_can_async_p ()) | |
1062 | { | |
1063 | struct step_1_continuation_args *args; | |
1064 | ||
1065 | args = xmalloc (sizeof (*args)); | |
1066 | args->skip_subroutines = skip_subroutines; | |
1067 | args->single_inst = single_inst; | |
1068 | args->count = count; | |
1069 | args->thread = thread; | |
1070 | ||
1071 | add_intermediate_continuation (tp, step_1_continuation, args, xfree); | |
1072 | } | |
c906108c | 1073 | } |
c906108c | 1074 | } |
c2d11a7d | 1075 | |
c906108c SS |
1076 | \f |
1077 | /* Continue program at specified address. */ | |
1078 | ||
1079 | static void | |
fba45db2 | 1080 | jump_command (char *arg, int from_tty) |
c906108c | 1081 | { |
5af949e3 | 1082 | struct gdbarch *gdbarch = get_current_arch (); |
52f0bd74 | 1083 | CORE_ADDR addr; |
c906108c SS |
1084 | struct symtabs_and_lines sals; |
1085 | struct symtab_and_line sal; | |
1086 | struct symbol *fn; | |
1087 | struct symbol *sfn; | |
43ff13b4 | 1088 | int async_exec = 0; |
c5aa993b | 1089 | |
c906108c | 1090 | ERROR_NO_INFERIOR; |
573cda03 | 1091 | ensure_not_tfind_mode (); |
d729566a | 1092 | ensure_valid_thread (); |
94cc34af | 1093 | ensure_not_running (); |
c906108c | 1094 | |
1777feb0 | 1095 | /* Find out whether we must run in the background. */ |
43ff13b4 JM |
1096 | if (arg != NULL) |
1097 | async_exec = strip_bg_char (&arg); | |
1098 | ||
1099 | /* If we must run in the background, but the target can't do it, | |
1777feb0 | 1100 | error out. */ |
362646f5 | 1101 | if (async_exec && !target_can_async_p ()) |
8a3fe4f8 | 1102 | error (_("Asynchronous execution not supported on this target.")); |
43ff13b4 | 1103 | |
c906108c | 1104 | if (!arg) |
e2e0b3e5 | 1105 | error_no_arg (_("starting address")); |
c906108c SS |
1106 | |
1107 | sals = decode_line_spec_1 (arg, 1); | |
1108 | if (sals.nelts != 1) | |
1109 | { | |
8a3fe4f8 | 1110 | error (_("Unreasonable jump request")); |
c906108c SS |
1111 | } |
1112 | ||
1113 | sal = sals.sals[0]; | |
b8c9b27d | 1114 | xfree (sals.sals); |
c906108c SS |
1115 | |
1116 | if (sal.symtab == 0 && sal.pc == 0) | |
8a3fe4f8 | 1117 | error (_("No source file has been specified.")); |
c906108c | 1118 | |
1777feb0 | 1119 | resolve_sal_pc (&sal); /* May error out. */ |
c906108c | 1120 | |
1777feb0 | 1121 | /* See if we are trying to jump to another function. */ |
c906108c SS |
1122 | fn = get_frame_function (get_current_frame ()); |
1123 | sfn = find_pc_function (sal.pc); | |
1124 | if (fn != NULL && sfn != fn) | |
1125 | { | |
9e2f0ad4 | 1126 | if (!query (_("Line %d is not in `%s'. Jump anyway? "), sal.line, |
de5ad195 | 1127 | SYMBOL_PRINT_NAME (fn))) |
c906108c | 1128 | { |
8a3fe4f8 | 1129 | error (_("Not confirmed.")); |
c906108c SS |
1130 | /* NOTREACHED */ |
1131 | } | |
1132 | } | |
1133 | ||
c5aa993b | 1134 | if (sfn != NULL) |
c906108c SS |
1135 | { |
1136 | fixup_symbol_section (sfn, 0); | |
714835d5 UW |
1137 | if (section_is_overlay (SYMBOL_OBJ_SECTION (sfn)) && |
1138 | !section_is_mapped (SYMBOL_OBJ_SECTION (sfn))) | |
c906108c | 1139 | { |
3e43a32a MS |
1140 | if (!query (_("WARNING!!! Destination is in " |
1141 | "unmapped overlay! Jump anyway? "))) | |
c906108c | 1142 | { |
8a3fe4f8 | 1143 | error (_("Not confirmed.")); |
c906108c SS |
1144 | /* NOTREACHED */ |
1145 | } | |
1146 | } | |
1147 | } | |
1148 | ||
c906108c SS |
1149 | addr = sal.pc; |
1150 | ||
1151 | if (from_tty) | |
1152 | { | |
a3f17187 | 1153 | printf_filtered (_("Continuing at ")); |
5af949e3 | 1154 | fputs_filtered (paddress (gdbarch, addr), gdb_stdout); |
c906108c SS |
1155 | printf_filtered (".\n"); |
1156 | } | |
1157 | ||
89113898 | 1158 | /* If we are not asked to run in the bg, then prepare to run in the |
1777feb0 | 1159 | foreground, synchronously. */ |
89113898 PA |
1160 | if (!async_exec && target_can_async_p ()) |
1161 | { | |
1777feb0 | 1162 | /* Simulate synchronous execution. */ |
89113898 PA |
1163 | async_disable_stdin (); |
1164 | } | |
1165 | ||
c906108c SS |
1166 | clear_proceed_status (); |
1167 | proceed (addr, TARGET_SIGNAL_0, 0); | |
1168 | } | |
c906108c | 1169 | \f |
c5aa993b | 1170 | |
1777feb0 | 1171 | /* Go to line or address in current procedure. */ |
c906108c | 1172 | static void |
fba45db2 | 1173 | go_command (char *line_no, int from_tty) |
c906108c | 1174 | { |
c5aa993b | 1175 | if (line_no == (char *) NULL || !*line_no) |
f42429a6 | 1176 | printf_filtered (_("Usage: go <location>\n")); |
c906108c SS |
1177 | else |
1178 | { | |
b83266a0 SS |
1179 | tbreak_command (line_no, from_tty); |
1180 | jump_command (line_no, from_tty); | |
c906108c SS |
1181 | } |
1182 | } | |
c906108c | 1183 | \f |
c5aa993b | 1184 | |
c906108c SS |
1185 | /* Continue program giving it specified signal. */ |
1186 | ||
1187 | static void | |
fba45db2 | 1188 | signal_command (char *signum_exp, int from_tty) |
c906108c SS |
1189 | { |
1190 | enum target_signal oursig; | |
32c1e744 | 1191 | int async_exec = 0; |
c906108c SS |
1192 | |
1193 | dont_repeat (); /* Too dangerous. */ | |
1194 | ERROR_NO_INFERIOR; | |
573cda03 | 1195 | ensure_not_tfind_mode (); |
d729566a | 1196 | ensure_valid_thread (); |
94cc34af | 1197 | ensure_not_running (); |
c906108c | 1198 | |
32c1e744 VP |
1199 | /* Find out whether we must run in the background. */ |
1200 | if (signum_exp != NULL) | |
1201 | async_exec = strip_bg_char (&signum_exp); | |
1202 | ||
1203 | /* If we must run in the background, but the target can't do it, | |
1204 | error out. */ | |
1205 | if (async_exec && !target_can_async_p ()) | |
1206 | error (_("Asynchronous execution not supported on this target.")); | |
1207 | ||
1208 | /* If we are not asked to run in the bg, then prepare to run in the | |
1209 | foreground, synchronously. */ | |
1210 | if (!async_exec && target_can_async_p ()) | |
1211 | { | |
1212 | /* Simulate synchronous execution. */ | |
1213 | async_disable_stdin (); | |
1214 | } | |
1215 | ||
c906108c | 1216 | if (!signum_exp) |
e2e0b3e5 | 1217 | error_no_arg (_("signal number")); |
c906108c SS |
1218 | |
1219 | /* It would be even slicker to make signal names be valid expressions, | |
1220 | (the type could be "enum $signal" or some such), then the user could | |
1221 | assign them to convenience variables. */ | |
1222 | oursig = target_signal_from_name (signum_exp); | |
1223 | ||
1224 | if (oursig == TARGET_SIGNAL_UNKNOWN) | |
1225 | { | |
1226 | /* No, try numeric. */ | |
bb518678 | 1227 | int num = parse_and_eval_long (signum_exp); |
c906108c SS |
1228 | |
1229 | if (num == 0) | |
1230 | oursig = TARGET_SIGNAL_0; | |
1231 | else | |
1232 | oursig = target_signal_from_command (num); | |
1233 | } | |
1234 | ||
1235 | if (from_tty) | |
1236 | { | |
1237 | if (oursig == TARGET_SIGNAL_0) | |
a3f17187 | 1238 | printf_filtered (_("Continuing with no signal.\n")); |
c906108c | 1239 | else |
a3f17187 | 1240 | printf_filtered (_("Continuing with signal %s.\n"), |
c906108c SS |
1241 | target_signal_to_name (oursig)); |
1242 | } | |
1243 | ||
1244 | clear_proceed_status (); | |
a12cc160 | 1245 | proceed ((CORE_ADDR) -1, oursig, 0); |
c906108c SS |
1246 | } |
1247 | ||
186c406b TT |
1248 | /* A continuation callback for until_next_command. */ |
1249 | ||
1250 | static void | |
1251 | until_next_continuation (void *arg) | |
1252 | { | |
1253 | struct thread_info *tp = arg; | |
1254 | ||
1255 | delete_longjmp_breakpoint (tp->num); | |
1256 | } | |
1257 | ||
c906108c SS |
1258 | /* Proceed until we reach a different source line with pc greater than |
1259 | our current one or exit the function. We skip calls in both cases. | |
1260 | ||
1261 | Note that eventually this command should probably be changed so | |
1262 | that only source lines are printed out when we hit the breakpoint | |
1263 | we set. This may involve changes to wait_for_inferior and the | |
1264 | proceed status code. */ | |
1265 | ||
c906108c | 1266 | static void |
fba45db2 | 1267 | until_next_command (int from_tty) |
c906108c SS |
1268 | { |
1269 | struct frame_info *frame; | |
1270 | CORE_ADDR pc; | |
1271 | struct symbol *func; | |
1272 | struct symtab_and_line sal; | |
4e1c45ea | 1273 | struct thread_info *tp = inferior_thread (); |
186c406b TT |
1274 | int thread = tp->num; |
1275 | struct cleanup *old_chain; | |
c5aa993b | 1276 | |
c906108c | 1277 | clear_proceed_status (); |
edb3359d | 1278 | set_step_frame (); |
c906108c SS |
1279 | |
1280 | frame = get_current_frame (); | |
1281 | ||
1282 | /* Step until either exited from this function or greater | |
1283 | than the current line (if in symbolic section) or pc (if | |
1777feb0 | 1284 | not). */ |
c906108c | 1285 | |
1c7819ef | 1286 | pc = get_frame_pc (frame); |
c906108c | 1287 | func = find_pc_function (pc); |
c5aa993b | 1288 | |
c906108c SS |
1289 | if (!func) |
1290 | { | |
1291 | struct minimal_symbol *msymbol = lookup_minimal_symbol_by_pc (pc); | |
c5aa993b | 1292 | |
c906108c | 1293 | if (msymbol == NULL) |
8a3fe4f8 | 1294 | error (_("Execution is not within a known function.")); |
c5aa993b | 1295 | |
16c381f0 JK |
1296 | tp->control.step_range_start = SYMBOL_VALUE_ADDRESS (msymbol); |
1297 | tp->control.step_range_end = pc; | |
c906108c SS |
1298 | } |
1299 | else | |
1300 | { | |
1301 | sal = find_pc_line (pc, 0); | |
c5aa993b | 1302 | |
16c381f0 JK |
1303 | tp->control.step_range_start = BLOCK_START (SYMBOL_BLOCK_VALUE (func)); |
1304 | tp->control.step_range_end = sal.end; | |
c906108c | 1305 | } |
c5aa993b | 1306 | |
16c381f0 | 1307 | tp->control.step_over_calls = STEP_OVER_ALL; |
c906108c | 1308 | |
af679fd0 | 1309 | tp->step_multi = 0; /* Only one call to proceed */ |
c5aa993b | 1310 | |
186c406b TT |
1311 | set_longjmp_breakpoint (tp, get_frame_id (frame)); |
1312 | old_chain = make_cleanup (delete_longjmp_breakpoint_cleanup, &thread); | |
1313 | ||
2acceee2 | 1314 | proceed ((CORE_ADDR) -1, TARGET_SIGNAL_DEFAULT, 1); |
186c406b TT |
1315 | |
1316 | if (target_can_async_p () && is_running (inferior_ptid)) | |
1317 | { | |
1318 | discard_cleanups (old_chain); | |
1319 | add_continuation (tp, until_next_continuation, tp, NULL); | |
1320 | } | |
1321 | else | |
1322 | do_cleanups (old_chain); | |
c906108c SS |
1323 | } |
1324 | ||
c5aa993b | 1325 | static void |
fba45db2 | 1326 | until_command (char *arg, int from_tty) |
c906108c | 1327 | { |
43ff13b4 JM |
1328 | int async_exec = 0; |
1329 | ||
4247603b | 1330 | ERROR_NO_INFERIOR; |
573cda03 | 1331 | ensure_not_tfind_mode (); |
4247603b PA |
1332 | ensure_valid_thread (); |
1333 | ensure_not_running (); | |
573cda03 | 1334 | |
1777feb0 | 1335 | /* Find out whether we must run in the background. */ |
43ff13b4 JM |
1336 | if (arg != NULL) |
1337 | async_exec = strip_bg_char (&arg); | |
1338 | ||
1339 | /* If we must run in the background, but the target can't do it, | |
1777feb0 | 1340 | error out. */ |
362646f5 | 1341 | if (async_exec && !target_can_async_p ()) |
8a3fe4f8 | 1342 | error (_("Asynchronous execution not supported on this target.")); |
43ff13b4 JM |
1343 | |
1344 | /* If we are not asked to run in the bg, then prepare to run in the | |
1777feb0 | 1345 | foreground, synchronously. */ |
362646f5 | 1346 | if (!async_exec && target_can_async_p ()) |
c5aa993b | 1347 | { |
1777feb0 | 1348 | /* Simulate synchronous execution. */ |
6426a772 | 1349 | async_disable_stdin (); |
43ff13b4 JM |
1350 | } |
1351 | ||
c906108c | 1352 | if (arg) |
ae66c1fc | 1353 | until_break_command (arg, from_tty, 0); |
c906108c SS |
1354 | else |
1355 | until_next_command (from_tty); | |
1356 | } | |
ae66c1fc EZ |
1357 | |
1358 | static void | |
1359 | advance_command (char *arg, int from_tty) | |
1360 | { | |
1361 | int async_exec = 0; | |
1362 | ||
4247603b | 1363 | ERROR_NO_INFERIOR; |
573cda03 | 1364 | ensure_not_tfind_mode (); |
4247603b PA |
1365 | ensure_valid_thread (); |
1366 | ensure_not_running (); | |
573cda03 | 1367 | |
ae66c1fc | 1368 | if (arg == NULL) |
e2e0b3e5 | 1369 | error_no_arg (_("a location")); |
ae66c1fc EZ |
1370 | |
1371 | /* Find out whether we must run in the background. */ | |
1372 | if (arg != NULL) | |
1373 | async_exec = strip_bg_char (&arg); | |
1374 | ||
1375 | /* If we must run in the background, but the target can't do it, | |
1376 | error out. */ | |
362646f5 | 1377 | if (async_exec && !target_can_async_p ()) |
8a3fe4f8 | 1378 | error (_("Asynchronous execution not supported on this target.")); |
ae66c1fc EZ |
1379 | |
1380 | /* If we are not asked to run in the bg, then prepare to run in the | |
1381 | foreground, synchronously. */ | |
362646f5 | 1382 | if (!async_exec && target_can_async_p ()) |
ae66c1fc EZ |
1383 | { |
1384 | /* Simulate synchronous execution. */ | |
1385 | async_disable_stdin (); | |
1386 | } | |
1387 | ||
1388 | until_break_command (arg, from_tty, 1); | |
1389 | } | |
c906108c | 1390 | \f |
f941662f MK |
1391 | /* Print the result of a function at the end of a 'finish' command. */ |
1392 | ||
11cf8741 | 1393 | static void |
c055b101 | 1394 | print_return_value (struct type *func_type, struct type *value_type) |
11cf8741 | 1395 | { |
d80b854b | 1396 | struct gdbarch *gdbarch = get_regcache_arch (stop_registers); |
bb472c1e MK |
1397 | struct cleanup *old_chain; |
1398 | struct ui_stream *stb; | |
44e5158b AC |
1399 | struct value *value; |
1400 | ||
181fc57c | 1401 | CHECK_TYPEDEF (value_type); |
44e5158b | 1402 | gdb_assert (TYPE_CODE (value_type) != TYPE_CODE_VOID); |
11cf8741 | 1403 | |
92ad9cd9 AC |
1404 | /* FIXME: 2003-09-27: When returning from a nested inferior function |
1405 | call, it's possible (with no help from the architecture vector) | |
1406 | to locate and return/print a "struct return" value. This is just | |
7a9dd1b2 | 1407 | a more complicated case of what is already being done in the |
92ad9cd9 AC |
1408 | inferior function call code. In fact, when inferior function |
1409 | calls are made async, this will likely be made the norm. */ | |
31db7b6c | 1410 | |
c055b101 CV |
1411 | switch (gdbarch_return_value (gdbarch, func_type, value_type, |
1412 | NULL, NULL, NULL)) | |
44e5158b | 1413 | { |
750eb019 AC |
1414 | case RETURN_VALUE_REGISTER_CONVENTION: |
1415 | case RETURN_VALUE_ABI_RETURNS_ADDRESS: | |
181fc57c | 1416 | case RETURN_VALUE_ABI_PRESERVES_ADDRESS: |
44e5158b | 1417 | value = allocate_value (value_type); |
c055b101 | 1418 | gdbarch_return_value (gdbarch, func_type, value_type, stop_registers, |
990a07ab | 1419 | value_contents_raw (value), NULL); |
750eb019 AC |
1420 | break; |
1421 | case RETURN_VALUE_STRUCT_CONVENTION: | |
1422 | value = NULL; | |
1423 | break; | |
1424 | default: | |
e2e0b3e5 | 1425 | internal_error (__FILE__, __LINE__, _("bad switch")); |
44e5158b | 1426 | } |
bb472c1e | 1427 | |
31db7b6c MK |
1428 | if (value) |
1429 | { | |
79a45b7d TT |
1430 | struct value_print_options opts; |
1431 | ||
31db7b6c | 1432 | /* Print it. */ |
1d751abe PA |
1433 | stb = ui_out_stream_new (uiout); |
1434 | old_chain = make_cleanup_ui_out_stream_delete (stb); | |
31db7b6c MK |
1435 | ui_out_text (uiout, "Value returned is "); |
1436 | ui_out_field_fmt (uiout, "gdb-result-var", "$%d", | |
1437 | record_latest_value (value)); | |
1438 | ui_out_text (uiout, " = "); | |
79a45b7d TT |
1439 | get_raw_print_options (&opts); |
1440 | value_print (value, stb->stream, &opts); | |
31db7b6c MK |
1441 | ui_out_field_stream (uiout, "return-value", stb); |
1442 | ui_out_text (uiout, "\n"); | |
1d751abe | 1443 | do_cleanups (old_chain); |
31db7b6c MK |
1444 | } |
1445 | else | |
1446 | { | |
1447 | ui_out_text (uiout, "Value returned has type: "); | |
1d751abe PA |
1448 | ui_out_field_string (uiout, "return-type", TYPE_NAME (value_type)); |
1449 | ui_out_text (uiout, "."); | |
1450 | ui_out_text (uiout, " Cannot determine contents\n"); | |
31db7b6c | 1451 | } |
11cf8741 JM |
1452 | } |
1453 | ||
43ff13b4 | 1454 | /* Stuff that needs to be done by the finish command after the target |
f941662f MK |
1455 | has stopped. In asynchronous mode, we wait for the target to stop |
1456 | in the call to poll or select in the event loop, so it is | |
1457 | impossible to do all the stuff as part of the finish_command | |
1458 | function itself. The only chance we have to complete this command | |
1459 | is in fetch_inferior_event, which is called by the event loop as | |
1777feb0 | 1460 | soon as it detects that the target has stopped. This function is |
f941662f MK |
1461 | called via the cmd_continuation pointer. */ |
1462 | ||
bfec99b2 | 1463 | struct finish_command_continuation_args |
43ff13b4 | 1464 | { |
43ff13b4 | 1465 | struct breakpoint *breakpoint; |
bfec99b2 PA |
1466 | struct symbol *function; |
1467 | }; | |
c5aa993b | 1468 | |
bfec99b2 | 1469 | static void |
604ead4a | 1470 | finish_command_continuation (void *arg) |
bfec99b2 PA |
1471 | { |
1472 | struct finish_command_continuation_args *a = arg; | |
41d2bdb4 | 1473 | struct thread_info *tp = NULL; |
347bddb7 PA |
1474 | bpstat bs = NULL; |
1475 | ||
1476 | if (!ptid_equal (inferior_ptid, null_ptid) | |
1477 | && target_has_execution | |
1478 | && is_stopped (inferior_ptid)) | |
41d2bdb4 PA |
1479 | { |
1480 | tp = inferior_thread (); | |
16c381f0 | 1481 | bs = tp->control.stop_bpstat; |
41d2bdb4 | 1482 | } |
347bddb7 PA |
1483 | |
1484 | if (bpstat_find_breakpoint (bs, a->breakpoint) != NULL | |
604ead4a | 1485 | && a->function != NULL) |
43ff13b4 | 1486 | { |
604ead4a | 1487 | struct type *value_type; |
bfec99b2 | 1488 | |
604ead4a PA |
1489 | value_type = TYPE_TARGET_TYPE (SYMBOL_TYPE (a->function)); |
1490 | if (!value_type) | |
1491 | internal_error (__FILE__, __LINE__, | |
1492 | _("finish_command: function has no target type")); | |
f5871ec0 | 1493 | |
604ead4a | 1494 | if (TYPE_CODE (value_type) != TYPE_CODE_VOID) |
40c549d6 TT |
1495 | { |
1496 | volatile struct gdb_exception ex; | |
1497 | ||
1498 | TRY_CATCH (ex, RETURN_MASK_ALL) | |
1499 | { | |
1500 | /* print_return_value can throw an exception in some | |
1501 | circumstances. We need to catch this so that we still | |
1502 | delete the breakpoint. */ | |
1503 | print_return_value (SYMBOL_TYPE (a->function), value_type); | |
1504 | } | |
1505 | if (ex.reason < 0) | |
1506 | exception_print (gdb_stdout, ex); | |
1507 | } | |
43ff13b4 | 1508 | } |
f941662f | 1509 | |
604ead4a | 1510 | /* We suppress normal call of normal_stop observer and do it here so |
41d2bdb4 | 1511 | that the *stopped notification includes the return value. */ |
16c381f0 | 1512 | if (bs != NULL && tp->control.proceed_to_finish) |
41d2bdb4 | 1513 | observer_notify_normal_stop (bs, 1 /* print frame */); |
bfec99b2 | 1514 | delete_breakpoint (a->breakpoint); |
186c406b | 1515 | delete_longjmp_breakpoint (inferior_thread ()->num); |
43ff13b4 JM |
1516 | } |
1517 | ||
604ead4a PA |
1518 | static void |
1519 | finish_command_continuation_free_arg (void *arg) | |
1520 | { | |
604ead4a PA |
1521 | xfree (arg); |
1522 | } | |
1523 | ||
b2175913 MS |
1524 | /* finish_backward -- helper function for finish_command. */ |
1525 | ||
1526 | static void | |
1527 | finish_backward (struct symbol *function) | |
1528 | { | |
1529 | struct symtab_and_line sal; | |
1530 | struct thread_info *tp = inferior_thread (); | |
1531 | struct breakpoint *breakpoint; | |
1532 | struct cleanup *old_chain; | |
1c7819ef | 1533 | CORE_ADDR pc; |
b2175913 MS |
1534 | CORE_ADDR func_addr; |
1535 | int back_up; | |
1536 | ||
1c7819ef PA |
1537 | pc = get_frame_pc (get_current_frame ()); |
1538 | ||
1539 | if (find_pc_partial_function (pc, NULL, &func_addr, NULL) == 0) | |
b2175913 MS |
1540 | internal_error (__FILE__, __LINE__, |
1541 | _("Finish: couldn't find function.")); | |
1542 | ||
1543 | sal = find_pc_line (func_addr, 0); | |
1544 | ||
1545 | /* We don't need a return value. */ | |
16c381f0 | 1546 | tp->control.proceed_to_finish = 0; |
b2175913 MS |
1547 | /* Special case: if we're sitting at the function entry point, |
1548 | then all we need to do is take a reverse singlestep. We | |
1549 | don't need to set a breakpoint, and indeed it would do us | |
1550 | no good to do so. | |
1551 | ||
1552 | Note that this can only happen at frame #0, since there's | |
1553 | no way that a function up the stack can have a return address | |
1554 | that's equal to its entry point. */ | |
1555 | ||
1c7819ef | 1556 | if (sal.pc != pc) |
b2175913 | 1557 | { |
a6d9a66e UW |
1558 | struct frame_info *frame = get_selected_frame (NULL); |
1559 | struct gdbarch *gdbarch = get_frame_arch (frame); | |
1560 | ||
b2175913 MS |
1561 | /* Set breakpoint and continue. */ |
1562 | breakpoint = | |
a6d9a66e UW |
1563 | set_momentary_breakpoint (gdbarch, sal, |
1564 | get_stack_frame_id (frame), | |
b2175913 MS |
1565 | bp_breakpoint); |
1566 | /* Tell the breakpoint to keep quiet. We won't be done | |
1567 | until we've done another reverse single-step. */ | |
45a43567 | 1568 | breakpoint_set_silent (breakpoint, 1); |
b2175913 MS |
1569 | old_chain = make_cleanup_delete_breakpoint (breakpoint); |
1570 | proceed ((CORE_ADDR) -1, TARGET_SIGNAL_DEFAULT, 0); | |
1571 | /* We will be stopped when proceed returns. */ | |
16c381f0 JK |
1572 | back_up = (bpstat_find_breakpoint (tp->control.stop_bpstat, breakpoint) |
1573 | != NULL); | |
b2175913 MS |
1574 | do_cleanups (old_chain); |
1575 | } | |
1576 | else | |
1577 | back_up = 1; | |
1578 | if (back_up) | |
1579 | { | |
1580 | /* If in fact we hit the step-resume breakpoint (and not | |
1581 | some other breakpoint), then we're almost there -- | |
1582 | we just need to back up by one more single-step. */ | |
16c381f0 | 1583 | tp->control.step_range_start = tp->control.step_range_end = 1; |
b2175913 MS |
1584 | proceed ((CORE_ADDR) -1, TARGET_SIGNAL_DEFAULT, 1); |
1585 | } | |
1586 | return; | |
1587 | } | |
1588 | ||
1589 | /* finish_forward -- helper function for finish_command. */ | |
1590 | ||
1591 | static void | |
1592 | finish_forward (struct symbol *function, struct frame_info *frame) | |
1593 | { | |
a6d9a66e | 1594 | struct gdbarch *gdbarch = get_frame_arch (frame); |
b2175913 MS |
1595 | struct symtab_and_line sal; |
1596 | struct thread_info *tp = inferior_thread (); | |
1597 | struct breakpoint *breakpoint; | |
1598 | struct cleanup *old_chain; | |
1599 | struct finish_command_continuation_args *cargs; | |
186c406b | 1600 | int thread = tp->num; |
b2175913 MS |
1601 | |
1602 | sal = find_pc_line (get_frame_pc (frame), 0); | |
1603 | sal.pc = get_frame_pc (frame); | |
1604 | ||
a6d9a66e UW |
1605 | breakpoint = set_momentary_breakpoint (gdbarch, sal, |
1606 | get_stack_frame_id (frame), | |
b2175913 MS |
1607 | bp_finish); |
1608 | ||
1609 | old_chain = make_cleanup_delete_breakpoint (breakpoint); | |
1610 | ||
186c406b TT |
1611 | set_longjmp_breakpoint (tp, get_frame_id (frame)); |
1612 | make_cleanup (delete_longjmp_breakpoint_cleanup, &thread); | |
1613 | ||
16c381f0 JK |
1614 | /* We want stop_registers, please... */ |
1615 | tp->control.proceed_to_finish = 1; | |
b2175913 MS |
1616 | cargs = xmalloc (sizeof (*cargs)); |
1617 | ||
1618 | cargs->breakpoint = breakpoint; | |
1619 | cargs->function = function; | |
1620 | add_continuation (tp, finish_command_continuation, cargs, | |
1621 | finish_command_continuation_free_arg); | |
6c95b8df | 1622 | proceed ((CORE_ADDR) -1, TARGET_SIGNAL_DEFAULT, 0); |
b2175913 MS |
1623 | |
1624 | discard_cleanups (old_chain); | |
1625 | if (!target_can_async_p ()) | |
1626 | do_all_continuations (); | |
1627 | } | |
1628 | ||
f941662f MK |
1629 | /* "finish": Set a temporary breakpoint at the place the selected |
1630 | frame will return to, then continue. */ | |
c906108c SS |
1631 | |
1632 | static void | |
fba45db2 | 1633 | finish_command (char *arg, int from_tty) |
c906108c | 1634 | { |
52f0bd74 AC |
1635 | struct frame_info *frame; |
1636 | struct symbol *function; | |
43ff13b4 JM |
1637 | |
1638 | int async_exec = 0; | |
1639 | ||
4247603b | 1640 | ERROR_NO_INFERIOR; |
573cda03 | 1641 | ensure_not_tfind_mode (); |
4247603b PA |
1642 | ensure_valid_thread (); |
1643 | ensure_not_running (); | |
573cda03 | 1644 | |
f941662f | 1645 | /* Find out whether we must run in the background. */ |
43ff13b4 JM |
1646 | if (arg != NULL) |
1647 | async_exec = strip_bg_char (&arg); | |
1648 | ||
1649 | /* If we must run in the background, but the target can't do it, | |
f941662f | 1650 | error out. */ |
362646f5 | 1651 | if (async_exec && !target_can_async_p ()) |
8a3fe4f8 | 1652 | error (_("Asynchronous execution not supported on this target.")); |
43ff13b4 | 1653 | |
b2175913 MS |
1654 | /* Don't try to async in reverse. */ |
1655 | if (async_exec && execution_direction == EXEC_REVERSE) | |
1656 | error (_("Asynchronous 'finish' not supported in reverse.")); | |
1657 | ||
43ff13b4 | 1658 | /* If we are not asked to run in the bg, then prepare to run in the |
f941662f | 1659 | foreground, synchronously. */ |
362646f5 | 1660 | if (!async_exec && target_can_async_p ()) |
c5aa993b | 1661 | { |
f941662f | 1662 | /* Simulate synchronous execution. */ |
6426a772 | 1663 | async_disable_stdin (); |
43ff13b4 | 1664 | } |
c906108c SS |
1665 | |
1666 | if (arg) | |
8a3fe4f8 | 1667 | error (_("The \"finish\" command does not take any arguments.")); |
c906108c | 1668 | |
206415a3 | 1669 | frame = get_prev_frame (get_selected_frame (_("No selected frame."))); |
c906108c | 1670 | if (frame == 0) |
8a3fe4f8 | 1671 | error (_("\"finish\" not meaningful in the outermost frame.")); |
c906108c SS |
1672 | |
1673 | clear_proceed_status (); | |
1674 | ||
edb3359d DJ |
1675 | /* Finishing from an inline frame is completely different. We don't |
1676 | try to show the "return value" - no way to locate it. So we do | |
1677 | not need a completion. */ | |
1678 | if (get_frame_type (get_selected_frame (_("No selected frame."))) | |
1679 | == INLINE_FRAME) | |
1680 | { | |
1681 | /* Claim we are stepping in the calling frame. An empty step | |
1682 | range means that we will stop once we aren't in a function | |
1683 | called by that frame. We don't use the magic "1" value for | |
1684 | step_range_end, because then infrun will think this is nexti, | |
1685 | and not step over the rest of this inlined function call. */ | |
1686 | struct thread_info *tp = inferior_thread (); | |
1687 | struct symtab_and_line empty_sal; | |
abbb1732 | 1688 | |
edb3359d DJ |
1689 | init_sal (&empty_sal); |
1690 | set_step_info (frame, empty_sal); | |
16c381f0 JK |
1691 | tp->control.step_range_start = get_frame_pc (frame); |
1692 | tp->control.step_range_end = tp->control.step_range_start; | |
1693 | tp->control.step_over_calls = STEP_OVER_ALL; | |
edb3359d DJ |
1694 | |
1695 | /* Print info on the selected frame, including level number but not | |
1696 | source. */ | |
1697 | if (from_tty) | |
1698 | { | |
1699 | printf_filtered (_("Run till exit from ")); | |
1700 | print_stack_frame (get_selected_frame (NULL), 1, LOCATION); | |
1701 | } | |
1702 | ||
1703 | proceed ((CORE_ADDR) -1, TARGET_SIGNAL_DEFAULT, 1); | |
1704 | return; | |
1705 | } | |
1706 | ||
c906108c SS |
1707 | /* Find the function we will return from. */ |
1708 | ||
206415a3 | 1709 | function = find_pc_function (get_frame_pc (get_selected_frame (NULL))); |
c906108c | 1710 | |
f941662f MK |
1711 | /* Print info on the selected frame, including level number but not |
1712 | source. */ | |
c906108c SS |
1713 | if (from_tty) |
1714 | { | |
b2175913 MS |
1715 | if (execution_direction == EXEC_REVERSE) |
1716 | printf_filtered (_("Run back to call of ")); | |
1717 | else | |
1718 | printf_filtered (_("Run till exit from ")); | |
1719 | ||
b04f3ab4 | 1720 | print_stack_frame (get_selected_frame (NULL), 1, LOCATION); |
c906108c SS |
1721 | } |
1722 | ||
b2175913 MS |
1723 | if (execution_direction == EXEC_REVERSE) |
1724 | finish_backward (function); | |
1725 | else | |
1726 | finish_forward (function, frame); | |
c906108c SS |
1727 | } |
1728 | \f | |
f941662f | 1729 | |
c906108c | 1730 | static void |
fba45db2 | 1731 | program_info (char *args, int from_tty) |
c906108c | 1732 | { |
347bddb7 PA |
1733 | bpstat bs; |
1734 | int num, stat; | |
1735 | struct thread_info *tp; | |
1736 | ptid_t ptid; | |
c5aa993b | 1737 | |
c906108c SS |
1738 | if (!target_has_execution) |
1739 | { | |
a3f17187 | 1740 | printf_filtered (_("The program being debugged is not being run.\n")); |
c906108c SS |
1741 | return; |
1742 | } | |
1743 | ||
347bddb7 PA |
1744 | if (non_stop) |
1745 | ptid = inferior_ptid; | |
1746 | else | |
1747 | { | |
1748 | struct target_waitstatus ws; | |
abbb1732 | 1749 | |
347bddb7 PA |
1750 | get_last_target_status (&ptid, &ws); |
1751 | } | |
1752 | ||
1753 | if (ptid_equal (ptid, null_ptid) || is_exited (ptid)) | |
1754 | error (_("Invalid selected thread.")); | |
1755 | else if (is_running (ptid)) | |
1756 | error (_("Selected thread is running.")); | |
1757 | ||
e09875d4 | 1758 | tp = find_thread_ptid (ptid); |
16c381f0 | 1759 | bs = tp->control.stop_bpstat; |
347bddb7 PA |
1760 | stat = bpstat_num (&bs, &num); |
1761 | ||
c906108c | 1762 | target_files_info (); |
5af949e3 UW |
1763 | printf_filtered (_("Program stopped at %s.\n"), |
1764 | paddress (target_gdbarch, stop_pc)); | |
16c381f0 | 1765 | if (tp->control.stop_step) |
a3f17187 | 1766 | printf_filtered (_("It stopped after being stepped.\n")); |
8671a17b | 1767 | else if (stat != 0) |
c906108c SS |
1768 | { |
1769 | /* There may be several breakpoints in the same place, so this | |
c5aa993b | 1770 | isn't as strange as it seems. */ |
8671a17b | 1771 | while (stat != 0) |
c906108c | 1772 | { |
8671a17b | 1773 | if (stat < 0) |
c906108c | 1774 | { |
3e43a32a MS |
1775 | printf_filtered (_("It stopped at a breakpoint " |
1776 | "that has since been deleted.\n")); | |
c906108c SS |
1777 | } |
1778 | else | |
a3f17187 | 1779 | printf_filtered (_("It stopped at breakpoint %d.\n"), num); |
8671a17b | 1780 | stat = bpstat_num (&bs, &num); |
c906108c SS |
1781 | } |
1782 | } | |
16c381f0 | 1783 | else if (tp->suspend.stop_signal != TARGET_SIGNAL_0) |
c906108c | 1784 | { |
a3f17187 | 1785 | printf_filtered (_("It stopped with signal %s, %s.\n"), |
16c381f0 JK |
1786 | target_signal_to_name (tp->suspend.stop_signal), |
1787 | target_signal_to_string (tp->suspend.stop_signal)); | |
c906108c SS |
1788 | } |
1789 | ||
1790 | if (!from_tty) | |
1791 | { | |
3e43a32a MS |
1792 | printf_filtered (_("Type \"info stack\" or \"info " |
1793 | "registers\" for more information.\n")); | |
c906108c SS |
1794 | } |
1795 | } | |
1796 | \f | |
1797 | static void | |
fba45db2 | 1798 | environment_info (char *var, int from_tty) |
c906108c SS |
1799 | { |
1800 | if (var) | |
1801 | { | |
3f81c18a | 1802 | char *val = get_in_environ (current_inferior ()->environment, var); |
abbb1732 | 1803 | |
c906108c SS |
1804 | if (val) |
1805 | { | |
1806 | puts_filtered (var); | |
1807 | puts_filtered (" = "); | |
1808 | puts_filtered (val); | |
1809 | puts_filtered ("\n"); | |
1810 | } | |
1811 | else | |
1812 | { | |
1813 | puts_filtered ("Environment variable \""); | |
1814 | puts_filtered (var); | |
1815 | puts_filtered ("\" not defined.\n"); | |
1816 | } | |
1817 | } | |
1818 | else | |
1819 | { | |
3f81c18a | 1820 | char **vector = environ_vector (current_inferior ()->environment); |
abbb1732 | 1821 | |
c906108c SS |
1822 | while (*vector) |
1823 | { | |
1824 | puts_filtered (*vector++); | |
1825 | puts_filtered ("\n"); | |
1826 | } | |
1827 | } | |
1828 | } | |
1829 | ||
1830 | static void | |
fba45db2 | 1831 | set_environment_command (char *arg, int from_tty) |
c906108c | 1832 | { |
52f0bd74 | 1833 | char *p, *val, *var; |
c906108c SS |
1834 | int nullset = 0; |
1835 | ||
1836 | if (arg == 0) | |
e2e0b3e5 | 1837 | error_no_arg (_("environment variable and value")); |
c906108c | 1838 | |
1777feb0 | 1839 | /* Find seperation between variable name and value. */ |
c906108c SS |
1840 | p = (char *) strchr (arg, '='); |
1841 | val = (char *) strchr (arg, ' '); | |
1842 | ||
1843 | if (p != 0 && val != 0) | |
1844 | { | |
1845 | /* We have both a space and an equals. If the space is before the | |
c5aa993b | 1846 | equals, walk forward over the spaces til we see a nonspace |
1777feb0 | 1847 | (possibly the equals). */ |
c906108c SS |
1848 | if (p > val) |
1849 | while (*val == ' ') | |
1850 | val++; | |
1851 | ||
1852 | /* Now if the = is after the char following the spaces, | |
c5aa993b | 1853 | take the char following the spaces. */ |
c906108c SS |
1854 | if (p > val) |
1855 | p = val - 1; | |
1856 | } | |
1857 | else if (val != 0 && p == 0) | |
1858 | p = val; | |
1859 | ||
1860 | if (p == arg) | |
e2e0b3e5 | 1861 | error_no_arg (_("environment variable to set")); |
c906108c SS |
1862 | |
1863 | if (p == 0 || p[1] == 0) | |
1864 | { | |
1865 | nullset = 1; | |
1866 | if (p == 0) | |
1777feb0 | 1867 | p = arg + strlen (arg); /* So that savestring below will work. */ |
c906108c SS |
1868 | } |
1869 | else | |
1870 | { | |
1777feb0 | 1871 | /* Not setting variable value to null. */ |
c906108c SS |
1872 | val = p + 1; |
1873 | while (*val == ' ' || *val == '\t') | |
1874 | val++; | |
1875 | } | |
1876 | ||
c5aa993b JM |
1877 | while (p != arg && (p[-1] == ' ' || p[-1] == '\t')) |
1878 | p--; | |
c906108c SS |
1879 | |
1880 | var = savestring (arg, p - arg); | |
1881 | if (nullset) | |
1882 | { | |
3e43a32a MS |
1883 | printf_filtered (_("Setting environment variable " |
1884 | "\"%s\" to null value.\n"), | |
a3f17187 | 1885 | var); |
3f81c18a | 1886 | set_in_environ (current_inferior ()->environment, var, ""); |
c906108c SS |
1887 | } |
1888 | else | |
3f81c18a | 1889 | set_in_environ (current_inferior ()->environment, var, val); |
b8c9b27d | 1890 | xfree (var); |
c906108c SS |
1891 | } |
1892 | ||
1893 | static void | |
fba45db2 | 1894 | unset_environment_command (char *var, int from_tty) |
c906108c SS |
1895 | { |
1896 | if (var == 0) | |
1897 | { | |
1898 | /* If there is no argument, delete all environment variables. | |
c5aa993b | 1899 | Ask for confirmation if reading from the terminal. */ |
e2e0b3e5 | 1900 | if (!from_tty || query (_("Delete all environment variables? "))) |
c906108c | 1901 | { |
3f81c18a VP |
1902 | free_environ (current_inferior ()->environment); |
1903 | current_inferior ()->environment = make_environ (); | |
c906108c SS |
1904 | } |
1905 | } | |
1906 | else | |
3f81c18a | 1907 | unset_in_environ (current_inferior ()->environment, var); |
c906108c SS |
1908 | } |
1909 | ||
1777feb0 | 1910 | /* Handle the execution path (PATH variable). */ |
c906108c SS |
1911 | |
1912 | static const char path_var_name[] = "PATH"; | |
1913 | ||
c906108c | 1914 | static void |
fba45db2 | 1915 | path_info (char *args, int from_tty) |
c906108c SS |
1916 | { |
1917 | puts_filtered ("Executable and object file path: "); | |
3e43a32a MS |
1918 | puts_filtered (get_in_environ (current_inferior ()->environment, |
1919 | path_var_name)); | |
c906108c SS |
1920 | puts_filtered ("\n"); |
1921 | } | |
1922 | ||
1923 | /* Add zero or more directories to the front of the execution path. */ | |
1924 | ||
1925 | static void | |
fba45db2 | 1926 | path_command (char *dirname, int from_tty) |
c906108c SS |
1927 | { |
1928 | char *exec_path; | |
1929 | char *env; | |
abbb1732 | 1930 | |
c906108c | 1931 | dont_repeat (); |
3f81c18a | 1932 | env = get_in_environ (current_inferior ()->environment, path_var_name); |
1777feb0 | 1933 | /* Can be null if path is not set. */ |
c906108c SS |
1934 | if (!env) |
1935 | env = ""; | |
4fcf66da | 1936 | exec_path = xstrdup (env); |
c906108c | 1937 | mod_path (dirname, &exec_path); |
3f81c18a | 1938 | set_in_environ (current_inferior ()->environment, path_var_name, exec_path); |
b8c9b27d | 1939 | xfree (exec_path); |
c906108c | 1940 | if (from_tty) |
c5aa993b | 1941 | path_info ((char *) NULL, from_tty); |
c906108c | 1942 | } |
c906108c | 1943 | \f |
c5aa993b | 1944 | |
1777feb0 | 1945 | /* Print out the machine register regnum. If regnum is -1, print all |
0ab7a791 AC |
1946 | registers (print_all == 1) or all non-float and non-vector |
1947 | registers (print_all == 0). | |
c906108c SS |
1948 | |
1949 | For most machines, having all_registers_info() print the | |
0ab7a791 AC |
1950 | register(s) one per line is good enough. If a different format is |
1951 | required, (eg, for MIPS or Pyramid 90x, which both have lots of | |
1952 | regs), or there is an existing convention for showing all the | |
1953 | registers, define the architecture method PRINT_REGISTERS_INFO to | |
1954 | provide that format. */ | |
c906108c | 1955 | |
666e11c5 | 1956 | void |
0ab7a791 AC |
1957 | default_print_registers_info (struct gdbarch *gdbarch, |
1958 | struct ui_file *file, | |
1959 | struct frame_info *frame, | |
1960 | int regnum, int print_all) | |
c906108c | 1961 | { |
0ab7a791 | 1962 | int i; |
a4bd449d UW |
1963 | const int numregs = gdbarch_num_regs (gdbarch) |
1964 | + gdbarch_num_pseudo_regs (gdbarch); | |
0ab7a791 | 1965 | |
c906108c SS |
1966 | for (i = 0; i < numregs; i++) |
1967 | { | |
29ec5263 PA |
1968 | struct type *regtype; |
1969 | struct value *val; | |
1970 | ||
4782dc19 AC |
1971 | /* Decide between printing all regs, non-float / vector regs, or |
1972 | specific reg. */ | |
c5aa993b JM |
1973 | if (regnum == -1) |
1974 | { | |
f9418c0f | 1975 | if (print_all) |
4782dc19 | 1976 | { |
f9418c0f | 1977 | if (!gdbarch_register_reggroup_p (gdbarch, i, all_reggroup)) |
4782dc19 | 1978 | continue; |
f9418c0f AC |
1979 | } |
1980 | else | |
1981 | { | |
1982 | if (!gdbarch_register_reggroup_p (gdbarch, i, general_reggroup)) | |
4782dc19 AC |
1983 | continue; |
1984 | } | |
c5aa993b JM |
1985 | } |
1986 | else | |
1987 | { | |
1988 | if (i != regnum) | |
1989 | continue; | |
1990 | } | |
c906108c SS |
1991 | |
1992 | /* If the register name is empty, it is undefined for this | |
c5aa993b | 1993 | processor, so don't display anything. */ |
a4bd449d UW |
1994 | if (gdbarch_register_name (gdbarch, i) == NULL |
1995 | || *(gdbarch_register_name (gdbarch, i)) == '\0') | |
c906108c SS |
1996 | continue; |
1997 | ||
a4bd449d | 1998 | fputs_filtered (gdbarch_register_name (gdbarch, i), file); |
c9f4d572 | 1999 | print_spaces_filtered (15 - strlen (gdbarch_register_name |
a4bd449d | 2000 | (gdbarch, i)), file); |
c906108c | 2001 | |
29ec5263 PA |
2002 | regtype = register_type (gdbarch, i); |
2003 | val = allocate_value (regtype); | |
2004 | ||
c906108c | 2005 | /* Get the data in raw format. */ |
29ec5263 | 2006 | if (! frame_register_read (frame, i, value_contents_raw (val))) |
c906108c | 2007 | { |
0ab7a791 | 2008 | fprintf_filtered (file, "*value not available*\n"); |
c906108c SS |
2009 | continue; |
2010 | } | |
2011 | ||
0ab7a791 AC |
2012 | /* If virtual format is floating, print it that way, and in raw |
2013 | hex. */ | |
29ec5263 PA |
2014 | if (TYPE_CODE (regtype) == TYPE_CODE_FLT |
2015 | || TYPE_CODE (regtype) == TYPE_CODE_DECFLOAT) | |
c906108c | 2016 | { |
0ab7a791 | 2017 | int j; |
79a45b7d | 2018 | struct value_print_options opts; |
29ec5263 | 2019 | const gdb_byte *valaddr = value_contents_for_printing (val); |
c906108c | 2020 | |
79a45b7d TT |
2021 | get_user_print_options (&opts); |
2022 | opts.deref_ref = 1; | |
29ec5263 PA |
2023 | |
2024 | val_print (regtype, | |
2025 | value_contents_for_printing (val), | |
2026 | value_embedded_offset (val), 0, | |
2027 | file, 0, val, &opts, current_language); | |
c906108c | 2028 | |
0ab7a791 | 2029 | fprintf_filtered (file, "\t(raw 0x"); |
a4bd449d | 2030 | for (j = 0; j < register_size (gdbarch, i); j++) |
c906108c | 2031 | { |
0ab7a791 | 2032 | int idx; |
abbb1732 | 2033 | |
a4bd449d | 2034 | if (gdbarch_byte_order (gdbarch) == BFD_ENDIAN_BIG) |
0ab7a791 AC |
2035 | idx = j; |
2036 | else | |
a4bd449d | 2037 | idx = register_size (gdbarch, i) - 1 - j; |
29ec5263 | 2038 | fprintf_filtered (file, "%02x", (unsigned char) valaddr[idx]); |
c906108c | 2039 | } |
0ab7a791 | 2040 | fprintf_filtered (file, ")"); |
c906108c | 2041 | } |
c906108c SS |
2042 | else |
2043 | { | |
79a45b7d TT |
2044 | struct value_print_options opts; |
2045 | ||
ab4327e0 | 2046 | /* Print the register in hex. */ |
79a45b7d TT |
2047 | get_formatted_print_options (&opts, 'x'); |
2048 | opts.deref_ref = 1; | |
29ec5263 PA |
2049 | val_print (regtype, |
2050 | value_contents_for_printing (val), | |
2051 | value_embedded_offset (val), 0, | |
2052 | file, 0, val, &opts, current_language); | |
ab4327e0 EZ |
2053 | /* If not a vector register, print it also according to its |
2054 | natural format. */ | |
29ec5263 | 2055 | if (TYPE_VECTOR (regtype) == 0) |
ab4327e0 | 2056 | { |
79a45b7d TT |
2057 | get_user_print_options (&opts); |
2058 | opts.deref_ref = 1; | |
9d84ac84 | 2059 | fprintf_filtered (file, "\t"); |
29ec5263 PA |
2060 | val_print (regtype, |
2061 | value_contents_for_printing (val), | |
2062 | value_embedded_offset (val), 0, | |
2063 | file, 0, val, &opts, current_language); | |
ab4327e0 | 2064 | } |
c906108c SS |
2065 | } |
2066 | ||
0ab7a791 | 2067 | fprintf_filtered (file, "\n"); |
c906108c SS |
2068 | } |
2069 | } | |
c906108c | 2070 | |
c906108c | 2071 | void |
fba45db2 | 2072 | registers_info (char *addr_exp, int fpregs) |
c906108c | 2073 | { |
206415a3 | 2074 | struct frame_info *frame; |
a4bd449d | 2075 | struct gdbarch *gdbarch; |
c906108c SS |
2076 | |
2077 | if (!target_has_registers) | |
8a3fe4f8 | 2078 | error (_("The program has no registers now.")); |
206415a3 | 2079 | frame = get_selected_frame (NULL); |
a4bd449d | 2080 | gdbarch = get_frame_arch (frame); |
c906108c SS |
2081 | |
2082 | if (!addr_exp) | |
2083 | { | |
a4bd449d | 2084 | gdbarch_print_registers_info (gdbarch, gdb_stdout, |
206415a3 | 2085 | frame, -1, fpregs); |
c906108c SS |
2086 | return; |
2087 | } | |
2088 | ||
f9418c0f | 2089 | while (*addr_exp != '\0') |
c5aa993b | 2090 | { |
f9418c0f AC |
2091 | char *start; |
2092 | const char *end; | |
c906108c | 2093 | |
f9418c0f AC |
2094 | /* Keep skipping leading white space. */ |
2095 | if (isspace ((*addr_exp))) | |
2096 | { | |
2097 | addr_exp++; | |
2098 | continue; | |
2099 | } | |
c906108c | 2100 | |
f9418c0f AC |
2101 | /* Discard any leading ``$''. Check that there is something |
2102 | resembling a register following it. */ | |
2103 | if (addr_exp[0] == '$') | |
2104 | addr_exp++; | |
2105 | if (isspace ((*addr_exp)) || (*addr_exp) == '\0') | |
8a3fe4f8 | 2106 | error (_("Missing register name")); |
c906108c | 2107 | |
f9418c0f AC |
2108 | /* Find the start/end of this register name/num/group. */ |
2109 | start = addr_exp; | |
2110 | while ((*addr_exp) != '\0' && !isspace ((*addr_exp))) | |
2111 | addr_exp++; | |
2112 | end = addr_exp; | |
ad842144 | 2113 | |
f9418c0f AC |
2114 | /* Figure out what we've found and display it. */ |
2115 | ||
2116 | /* A register name? */ | |
2117 | { | |
029a67e4 | 2118 | int regnum = user_reg_map_name_to_regnum (gdbarch, start, end - start); |
abbb1732 | 2119 | |
f9418c0f AC |
2120 | if (regnum >= 0) |
2121 | { | |
ad842144 MR |
2122 | /* User registers lie completely outside of the range of |
2123 | normal registers. Catch them early so that the target | |
2124 | never sees them. */ | |
2125 | if (regnum >= gdbarch_num_regs (gdbarch) | |
2126 | + gdbarch_num_pseudo_regs (gdbarch)) | |
2127 | { | |
79a45b7d | 2128 | struct value_print_options opts; |
ad842144 MR |
2129 | struct value *val = value_of_user_reg (regnum, frame); |
2130 | ||
2131 | printf_filtered ("%s: ", start); | |
79a45b7d | 2132 | get_formatted_print_options (&opts, 'x'); |
ab2188aa PA |
2133 | val_print_scalar_formatted (check_typedef (value_type (val)), |
2134 | value_contents_for_printing (val), | |
2135 | value_embedded_offset (val), | |
2136 | val, | |
2137 | &opts, 0, gdb_stdout); | |
ad842144 MR |
2138 | printf_filtered ("\n"); |
2139 | } | |
2140 | else | |
2141 | gdbarch_print_registers_info (gdbarch, gdb_stdout, | |
2142 | frame, regnum, fpregs); | |
f9418c0f AC |
2143 | continue; |
2144 | } | |
2145 | } | |
ad842144 | 2146 | |
f9418c0f AC |
2147 | /* A register group? */ |
2148 | { | |
6c7d17ba | 2149 | struct reggroup *group; |
abbb1732 | 2150 | |
a4bd449d | 2151 | for (group = reggroup_next (gdbarch, NULL); |
6c7d17ba | 2152 | group != NULL; |
a4bd449d | 2153 | group = reggroup_next (gdbarch, group)) |
f9418c0f AC |
2154 | { |
2155 | /* Don't bother with a length check. Should the user | |
2156 | enter a short register group name, go with the first | |
2157 | group that matches. */ | |
6c7d17ba | 2158 | if (strncmp (start, reggroup_name (group), end - start) == 0) |
f9418c0f AC |
2159 | break; |
2160 | } | |
6c7d17ba | 2161 | if (group != NULL) |
f9418c0f AC |
2162 | { |
2163 | int regnum; | |
abbb1732 | 2164 | |
f57d151a | 2165 | for (regnum = 0; |
a4bd449d UW |
2166 | regnum < gdbarch_num_regs (gdbarch) |
2167 | + gdbarch_num_pseudo_regs (gdbarch); | |
f57d151a | 2168 | regnum++) |
f9418c0f | 2169 | { |
a4bd449d UW |
2170 | if (gdbarch_register_reggroup_p (gdbarch, regnum, group)) |
2171 | gdbarch_print_registers_info (gdbarch, | |
206415a3 | 2172 | gdb_stdout, frame, |
f9418c0f AC |
2173 | regnum, fpregs); |
2174 | } | |
2175 | continue; | |
2176 | } | |
2177 | } | |
c906108c | 2178 | |
f9418c0f | 2179 | /* Nothing matched. */ |
8a3fe4f8 | 2180 | error (_("Invalid register `%.*s'"), (int) (end - start), start); |
c5aa993b | 2181 | } |
c906108c SS |
2182 | } |
2183 | ||
2184 | void | |
fba45db2 | 2185 | all_registers_info (char *addr_exp, int from_tty) |
c906108c SS |
2186 | { |
2187 | registers_info (addr_exp, 1); | |
2188 | } | |
2189 | ||
a58dd373 | 2190 | static void |
fba45db2 | 2191 | nofp_registers_info (char *addr_exp, int from_tty) |
c906108c SS |
2192 | { |
2193 | registers_info (addr_exp, 0); | |
2194 | } | |
e76f1f2e AC |
2195 | |
2196 | static void | |
d80b854b | 2197 | print_vector_info (struct ui_file *file, |
e76f1f2e AC |
2198 | struct frame_info *frame, const char *args) |
2199 | { | |
d80b854b UW |
2200 | struct gdbarch *gdbarch = get_frame_arch (frame); |
2201 | ||
e76f1f2e AC |
2202 | if (gdbarch_print_vector_info_p (gdbarch)) |
2203 | gdbarch_print_vector_info (gdbarch, file, frame, args); | |
2204 | else | |
2205 | { | |
2206 | int regnum; | |
2207 | int printed_something = 0; | |
ab4327e0 | 2208 | |
f57d151a | 2209 | for (regnum = 0; |
a4bd449d UW |
2210 | regnum < gdbarch_num_regs (gdbarch) |
2211 | + gdbarch_num_pseudo_regs (gdbarch); | |
f57d151a | 2212 | regnum++) |
e76f1f2e | 2213 | { |
f9418c0f | 2214 | if (gdbarch_register_reggroup_p (gdbarch, regnum, vector_reggroup)) |
e76f1f2e AC |
2215 | { |
2216 | printed_something = 1; | |
e76f1f2e | 2217 | gdbarch_print_registers_info (gdbarch, file, frame, regnum, 1); |
e76f1f2e AC |
2218 | } |
2219 | } | |
2220 | if (!printed_something) | |
2221 | fprintf_filtered (file, "No vector information\n"); | |
2222 | } | |
2223 | } | |
2224 | ||
2225 | static void | |
2226 | vector_info (char *args, int from_tty) | |
2227 | { | |
206415a3 DJ |
2228 | if (!target_has_registers) |
2229 | error (_("The program has no registers now.")); | |
2230 | ||
d80b854b | 2231 | print_vector_info (gdb_stdout, get_selected_frame (NULL), args); |
e76f1f2e | 2232 | } |
c906108c | 2233 | \f |
5fd62852 PA |
2234 | /* Kill the inferior process. Make us have no inferior. */ |
2235 | ||
2236 | static void | |
2237 | kill_command (char *arg, int from_tty) | |
2238 | { | |
2239 | /* FIXME: This should not really be inferior_ptid (or target_has_execution). | |
2240 | It should be a distinct flag that indicates that a target is active, cuz | |
1777feb0 | 2241 | some targets don't have processes! */ |
5fd62852 PA |
2242 | |
2243 | if (ptid_equal (inferior_ptid, null_ptid)) | |
2244 | error (_("The program is not being run.")); | |
2245 | if (!query (_("Kill the program being debugged? "))) | |
2246 | error (_("Not confirmed.")); | |
2247 | target_kill (); | |
2248 | ||
c35b1492 PA |
2249 | /* If we still have other inferiors to debug, then don't mess with |
2250 | with their threads. */ | |
2251 | if (!have_inferiors ()) | |
5fd62852 | 2252 | { |
1777feb0 | 2253 | init_thread_list (); /* Destroy thread info. */ |
5fd62852 PA |
2254 | |
2255 | /* Killing off the inferior can leave us with a core file. If | |
2256 | so, print the state we are left in. */ | |
2257 | if (target_has_stack) | |
2258 | { | |
2259 | printf_filtered (_("In %s,\n"), target_longname); | |
2260 | print_stack_frame (get_selected_frame (NULL), 1, SRC_AND_LOC); | |
2261 | } | |
2262 | } | |
2263 | bfd_cache_close_all (); | |
2264 | } | |
c5aa993b | 2265 | |
74531fed PA |
2266 | /* Used in `attach&' command. ARG is a point to an integer |
2267 | representing a process id. Proceed threads of this process iff | |
2268 | they stopped due to debugger request, and when they did, they | |
2269 | reported a clean stop (TARGET_SIGNAL_0). Do not proceed threads | |
2270 | that have been explicitly been told to stop. */ | |
2271 | ||
2272 | static int | |
2273 | proceed_after_attach_callback (struct thread_info *thread, | |
2274 | void *arg) | |
2275 | { | |
2276 | int pid = * (int *) arg; | |
2277 | ||
2278 | if (ptid_get_pid (thread->ptid) == pid | |
2279 | && !is_exited (thread->ptid) | |
2280 | && !is_executing (thread->ptid) | |
2281 | && !thread->stop_requested | |
16c381f0 | 2282 | && thread->suspend.stop_signal == TARGET_SIGNAL_0) |
74531fed PA |
2283 | { |
2284 | switch_to_thread (thread->ptid); | |
2285 | clear_proceed_status (); | |
2286 | proceed ((CORE_ADDR) -1, TARGET_SIGNAL_DEFAULT, 0); | |
2287 | } | |
2288 | ||
2289 | return 0; | |
2290 | } | |
2291 | ||
2292 | static void | |
2293 | proceed_after_attach (int pid) | |
2294 | { | |
2295 | /* Don't error out if the current thread is running, because | |
2296 | there may be other stopped threads. */ | |
2297 | struct cleanup *old_chain; | |
2298 | ||
2299 | /* Backup current thread and selected frame. */ | |
2300 | old_chain = make_cleanup_restore_current_thread (); | |
2301 | ||
2302 | iterate_over_threads (proceed_after_attach_callback, &pid); | |
2303 | ||
2304 | /* Restore selected ptid. */ | |
2305 | do_cleanups (old_chain); | |
2306 | } | |
2307 | ||
c906108c SS |
2308 | /* |
2309 | * TODO: | |
2310 | * Should save/restore the tty state since it might be that the | |
2311 | * program to be debugged was started on this tty and it wants | |
2312 | * the tty in some state other than what we want. If it's running | |
2313 | * on another terminal or without a terminal, then saving and | |
2314 | * restoring the tty state is a harmless no-op. | |
2315 | * This only needs to be done if we are attaching to a process. | |
2316 | */ | |
2317 | ||
1777feb0 | 2318 | /* attach_command -- |
c906108c SS |
2319 | takes a program started up outside of gdb and ``attaches'' to it. |
2320 | This stops it cold in its tracks and allows us to start debugging it. | |
2321 | and wait for the trace-trap that results from attaching. */ | |
2322 | ||
9356cf8d PA |
2323 | static void |
2324 | attach_command_post_wait (char *args, int from_tty, int async_exec) | |
2325 | { | |
2326 | char *exec_file; | |
2327 | char *full_exec_path = NULL; | |
d6b48e9c | 2328 | struct inferior *inferior; |
9356cf8d | 2329 | |
d6b48e9c | 2330 | inferior = current_inferior (); |
16c381f0 | 2331 | inferior->control.stop_soon = NO_STOP_QUIETLY; |
9356cf8d PA |
2332 | |
2333 | /* If no exec file is yet known, try to determine it from the | |
2334 | process itself. */ | |
2335 | exec_file = (char *) get_exec_file (0); | |
2336 | if (!exec_file) | |
2337 | { | |
2338 | exec_file = target_pid_to_exec_file (PIDGET (inferior_ptid)); | |
2339 | if (exec_file) | |
2340 | { | |
2341 | /* It's possible we don't have a full path, but rather just a | |
2342 | filename. Some targets, such as HP-UX, don't provide the | |
2343 | full path, sigh. | |
2344 | ||
2345 | Attempt to qualify the filename against the source path. | |
2346 | (If that fails, we'll just fall back on the original | |
1777feb0 MS |
2347 | filename. Not much more we can do...) */ |
2348 | ||
9356cf8d | 2349 | if (!source_full_path_of (exec_file, &full_exec_path)) |
1b36a34b | 2350 | full_exec_path = xstrdup (exec_file); |
9356cf8d PA |
2351 | |
2352 | exec_file_attach (full_exec_path, from_tty); | |
2353 | symbol_file_add_main (full_exec_path, from_tty); | |
2354 | } | |
2355 | } | |
2356 | else | |
2357 | { | |
2358 | reopen_exec_file (); | |
2359 | reread_symbols (); | |
2360 | } | |
2361 | ||
2362 | /* Take any necessary post-attaching actions for this platform. */ | |
2363 | target_post_attach (PIDGET (inferior_ptid)); | |
2364 | ||
2365 | post_create_inferior (¤t_target, from_tty); | |
2366 | ||
2367 | /* Install inferior's terminal modes. */ | |
2368 | target_terminal_inferior (); | |
2369 | ||
2370 | if (async_exec) | |
74531fed PA |
2371 | { |
2372 | /* The user requested an `attach&', so be sure to leave threads | |
2373 | that didn't get a signal running. */ | |
2374 | ||
2375 | /* Immediatelly resume all suspended threads of this inferior, | |
2376 | and this inferior only. This should have no effect on | |
2377 | already running threads. If a thread has been stopped with a | |
2378 | signal, leave it be. */ | |
2379 | if (non_stop) | |
2380 | proceed_after_attach (inferior->pid); | |
2381 | else | |
2382 | { | |
16c381f0 | 2383 | if (inferior_thread ()->suspend.stop_signal == TARGET_SIGNAL_0) |
74531fed PA |
2384 | { |
2385 | clear_proceed_status (); | |
2386 | proceed ((CORE_ADDR) -1, TARGET_SIGNAL_DEFAULT, 0); | |
2387 | } | |
2388 | } | |
2389 | } | |
9356cf8d PA |
2390 | else |
2391 | { | |
74531fed PA |
2392 | /* The user requested a plain `attach', so be sure to leave |
2393 | the inferior stopped. */ | |
2394 | ||
9356cf8d PA |
2395 | if (target_can_async_p ()) |
2396 | async_enable_stdin (); | |
74531fed PA |
2397 | |
2398 | /* At least the current thread is already stopped. */ | |
2399 | ||
2400 | /* In all-stop, by definition, all threads have to be already | |
2401 | stopped at this point. In non-stop, however, although the | |
2402 | selected thread is stopped, others may still be executing. | |
2403 | Be sure to explicitly stop all threads of the process. This | |
2404 | should have no effect on already stopped threads. */ | |
2405 | if (non_stop) | |
2406 | target_stop (pid_to_ptid (inferior->pid)); | |
2407 | ||
2408 | /* Tell the user/frontend where we're stopped. */ | |
9356cf8d PA |
2409 | normal_stop (); |
2410 | if (deprecated_attach_hook) | |
2411 | deprecated_attach_hook (); | |
2412 | } | |
2413 | } | |
2414 | ||
bfec99b2 | 2415 | struct attach_command_continuation_args |
9356cf8d PA |
2416 | { |
2417 | char *args; | |
2418 | int from_tty; | |
2419 | int async_exec; | |
bfec99b2 | 2420 | }; |
9356cf8d | 2421 | |
bfec99b2 | 2422 | static void |
604ead4a | 2423 | attach_command_continuation (void *args) |
bfec99b2 PA |
2424 | { |
2425 | struct attach_command_continuation_args *a = args; | |
abbb1732 | 2426 | |
bfec99b2 | 2427 | attach_command_post_wait (a->args, a->from_tty, a->async_exec); |
9356cf8d PA |
2428 | } |
2429 | ||
604ead4a PA |
2430 | static void |
2431 | attach_command_continuation_free_args (void *args) | |
2432 | { | |
2433 | struct attach_command_continuation_args *a = args; | |
abbb1732 | 2434 | |
604ead4a PA |
2435 | xfree (a->args); |
2436 | xfree (a); | |
2437 | } | |
2438 | ||
c906108c | 2439 | void |
fba45db2 | 2440 | attach_command (char *args, int from_tty) |
c906108c | 2441 | { |
9356cf8d | 2442 | int async_exec = 0; |
cb0362bb | 2443 | struct cleanup *back_to = make_cleanup (null_cleanup, NULL); |
c906108c | 2444 | |
c5aa993b | 2445 | dont_repeat (); /* Not for the faint of heart */ |
c906108c | 2446 | |
2567c7d9 PA |
2447 | if (gdbarch_has_global_solist (target_gdbarch)) |
2448 | /* Don't complain if all processes share the same symbol | |
2449 | space. */ | |
8a305172 PA |
2450 | ; |
2451 | else if (target_has_execution) | |
c906108c | 2452 | { |
9e2f0ad4 | 2453 | if (query (_("A program is being debugged already. Kill it? "))) |
c906108c SS |
2454 | target_kill (); |
2455 | else | |
8a3fe4f8 | 2456 | error (_("Not killed.")); |
c906108c SS |
2457 | } |
2458 | ||
fd79ecee DJ |
2459 | /* Clean up any leftovers from other runs. Some other things from |
2460 | this function should probably be moved into target_pre_inferior. */ | |
2461 | target_pre_inferior (from_tty); | |
2462 | ||
9908b566 VP |
2463 | if (non_stop && !target_supports_non_stop ()) |
2464 | error (_("Cannot attach to this target in non-stop mode")); | |
2465 | ||
9356cf8d PA |
2466 | if (args) |
2467 | { | |
2468 | async_exec = strip_bg_char (&args); | |
2469 | ||
2470 | /* If we get a request for running in the bg but the target | |
1777feb0 | 2471 | doesn't support it, error out. */ |
9356cf8d PA |
2472 | if (async_exec && !target_can_async_p ()) |
2473 | error (_("Asynchronous execution not supported on this target.")); | |
2474 | } | |
2475 | ||
2476 | /* If we don't get a request of running in the bg, then we need | |
2477 | to simulate synchronous (fg) execution. */ | |
2478 | if (!async_exec && target_can_async_p ()) | |
2479 | { | |
1777feb0 | 2480 | /* Simulate synchronous execution. */ |
9356cf8d | 2481 | async_disable_stdin (); |
cb0362bb | 2482 | make_cleanup ((make_cleanup_ftype *)async_enable_stdin, NULL); |
9356cf8d PA |
2483 | } |
2484 | ||
c906108c SS |
2485 | target_attach (args, from_tty); |
2486 | ||
2487 | /* Set up the "saved terminal modes" of the inferior | |
2488 | based on what modes we are starting it with. */ | |
2489 | target_terminal_init (); | |
2490 | ||
c906108c SS |
2491 | /* Set up execution context to know that we should return from |
2492 | wait_for_inferior as soon as the target reports a stop. */ | |
2493 | init_wait_for_inferior (); | |
2494 | clear_proceed_status (); | |
c906108c | 2495 | |
74531fed PA |
2496 | if (non_stop) |
2497 | { | |
2498 | /* If we find that the current thread isn't stopped, explicitly | |
2499 | do so now, because we're going to install breakpoints and | |
2500 | poke at memory. */ | |
2501 | ||
2502 | if (async_exec) | |
2503 | /* The user requested an `attach&'; stop just one thread. */ | |
2504 | target_stop (inferior_ptid); | |
2505 | else | |
2506 | /* The user requested an `attach', so stop all threads of this | |
2507 | inferior. */ | |
2508 | target_stop (pid_to_ptid (ptid_get_pid (inferior_ptid))); | |
2509 | } | |
2510 | ||
dc177b7a PA |
2511 | /* Some system don't generate traps when attaching to inferior. |
2512 | E.g. Mach 3 or GNU hurd. */ | |
2513 | if (!target_attach_no_wait) | |
c5aa993b | 2514 | { |
d6b48e9c PA |
2515 | struct inferior *inferior = current_inferior (); |
2516 | ||
1777feb0 | 2517 | /* Careful here. See comments in inferior.h. Basically some |
dc177b7a PA |
2518 | OSes don't ignore SIGSTOPs on continue requests anymore. We |
2519 | need a way for handle_inferior_event to reset the stop_signal | |
2520 | variable after an attach, and this is what | |
2521 | STOP_QUIETLY_NO_SIGSTOP is for. */ | |
16c381f0 | 2522 | inferior->control.stop_soon = STOP_QUIETLY_NO_SIGSTOP; |
c5aa993b | 2523 | |
dc177b7a PA |
2524 | if (target_can_async_p ()) |
2525 | { | |
2526 | /* sync_execution mode. Wait for stop. */ | |
bfec99b2 PA |
2527 | struct attach_command_continuation_args *a; |
2528 | ||
2529 | a = xmalloc (sizeof (*a)); | |
2530 | a->args = xstrdup (args); | |
2531 | a->from_tty = from_tty; | |
2532 | a->async_exec = async_exec; | |
e0ba6746 PA |
2533 | add_inferior_continuation (attach_command_continuation, a, |
2534 | attach_command_continuation_free_args); | |
cb0362bb | 2535 | discard_cleanups (back_to); |
dc177b7a PA |
2536 | return; |
2537 | } | |
c906108c | 2538 | |
e4c8541f | 2539 | wait_for_inferior (); |
dc177b7a | 2540 | } |
6426a772 | 2541 | |
9356cf8d | 2542 | attach_command_post_wait (args, from_tty, async_exec); |
cb0362bb | 2543 | discard_cleanups (back_to); |
c906108c SS |
2544 | } |
2545 | ||
1941c569 PA |
2546 | /* We had just found out that the target was already attached to an |
2547 | inferior. PTID points at a thread of this new inferior, that is | |
2548 | the most likely to be stopped right now, but not necessarily so. | |
2549 | The new inferior is assumed to be already added to the inferior | |
2550 | list at this point. If LEAVE_RUNNING, then leave the threads of | |
2551 | this inferior running, except those we've explicitly seen reported | |
2552 | as stopped. */ | |
2553 | ||
2554 | void | |
2555 | notice_new_inferior (ptid_t ptid, int leave_running, int from_tty) | |
2556 | { | |
2557 | struct cleanup* old_chain; | |
2558 | int async_exec; | |
2559 | ||
2560 | old_chain = make_cleanup (null_cleanup, NULL); | |
2561 | ||
2562 | /* If in non-stop, leave threads as running as they were. If | |
2563 | they're stopped for some reason other than us telling it to, the | |
2564 | target reports a signal != TARGET_SIGNAL_0. We don't try to | |
2565 | resume threads with such a stop signal. */ | |
2566 | async_exec = non_stop; | |
2567 | ||
2568 | if (!ptid_equal (inferior_ptid, null_ptid)) | |
2569 | make_cleanup_restore_current_thread (); | |
2570 | ||
2571 | switch_to_thread (ptid); | |
2572 | ||
2573 | /* When we "notice" a new inferior we need to do all the things we | |
2574 | would normally do if we had just attached to it. */ | |
2575 | ||
2576 | if (is_executing (inferior_ptid)) | |
2577 | { | |
2578 | struct inferior *inferior = current_inferior (); | |
2579 | ||
2580 | /* We're going to install breakpoints, and poke at memory, | |
2581 | ensure that the inferior is stopped for a moment while we do | |
2582 | that. */ | |
2583 | target_stop (inferior_ptid); | |
2584 | ||
16c381f0 | 2585 | inferior->control.stop_soon = STOP_QUIETLY_REMOTE; |
1941c569 PA |
2586 | |
2587 | /* Wait for stop before proceeding. */ | |
2588 | if (target_can_async_p ()) | |
2589 | { | |
2590 | struct attach_command_continuation_args *a; | |
2591 | ||
2592 | a = xmalloc (sizeof (*a)); | |
2593 | a->args = xstrdup (""); | |
2594 | a->from_tty = from_tty; | |
2595 | a->async_exec = async_exec; | |
2596 | add_inferior_continuation (attach_command_continuation, a, | |
2597 | attach_command_continuation_free_args); | |
2598 | ||
2599 | do_cleanups (old_chain); | |
2600 | return; | |
2601 | } | |
2602 | else | |
e4c8541f | 2603 | wait_for_inferior (); |
1941c569 PA |
2604 | } |
2605 | ||
2606 | async_exec = leave_running; | |
2607 | attach_command_post_wait ("" /* args */, from_tty, async_exec); | |
2608 | ||
2609 | do_cleanups (old_chain); | |
2610 | } | |
2611 | ||
c906108c SS |
2612 | /* |
2613 | * detach_command -- | |
2614 | * takes a program previously attached to and detaches it. | |
2615 | * The program resumes execution and will no longer stop | |
2616 | * on signals, etc. We better not have left any breakpoints | |
2617 | * in the program or it'll die when it hits one. For this | |
2618 | * to work, it may be necessary for the process to have been | |
2619 | * previously attached. It *might* work if the program was | |
2620 | * started via the normal ptrace (PTRACE_TRACEME). | |
2621 | */ | |
2622 | ||
6418d433 | 2623 | void |
fba45db2 | 2624 | detach_command (char *args, int from_tty) |
c906108c | 2625 | { |
1f5d0fc9 | 2626 | dont_repeat (); /* Not for the faint of heart. */ |
d729566a PA |
2627 | |
2628 | if (ptid_equal (inferior_ptid, null_ptid)) | |
2629 | error (_("The program is not being run.")); | |
2630 | ||
33da3f1c | 2631 | disconnect_tracing (from_tty); |
d5551862 | 2632 | |
c906108c | 2633 | target_detach (args, from_tty); |
50c71eaf PA |
2634 | |
2635 | /* If the solist is global across inferiors, don't clear it when we | |
2636 | detach from a single inferior. */ | |
2637 | if (!gdbarch_has_global_solist (target_gdbarch)) | |
2638 | no_shared_libraries (NULL, from_tty); | |
8a305172 | 2639 | |
c35b1492 PA |
2640 | /* If we still have inferiors to debug, then don't mess with their |
2641 | threads. */ | |
2642 | if (!have_inferiors ()) | |
8a305172 PA |
2643 | init_thread_list (); |
2644 | ||
9a4105ab AC |
2645 | if (deprecated_detach_hook) |
2646 | deprecated_detach_hook (); | |
c906108c SS |
2647 | } |
2648 | ||
6ad8ae5c DJ |
2649 | /* Disconnect from the current target without resuming it (leaving it |
2650 | waiting for a debugger). | |
2651 | ||
2652 | We'd better not have left any breakpoints in the program or the | |
2653 | next debugger will get confused. Currently only supported for some | |
2654 | remote targets, since the normal attach mechanisms don't work on | |
2655 | stopped processes on some native platforms (e.g. GNU/Linux). */ | |
2656 | ||
2657 | static void | |
2658 | disconnect_command (char *args, int from_tty) | |
2659 | { | |
1777feb0 | 2660 | dont_repeat (); /* Not for the faint of heart. */ |
6ad8ae5c | 2661 | target_disconnect (args, from_tty); |
e85a822c | 2662 | no_shared_libraries (NULL, from_tty); |
a0ef4274 | 2663 | init_thread_list (); |
9a4105ab AC |
2664 | if (deprecated_detach_hook) |
2665 | deprecated_detach_hook (); | |
6ad8ae5c DJ |
2666 | } |
2667 | ||
77ebaa5a VP |
2668 | void |
2669 | interrupt_target_1 (int all_threads) | |
2670 | { | |
2671 | ptid_t ptid; | |
abbb1732 | 2672 | |
77ebaa5a VP |
2673 | if (all_threads) |
2674 | ptid = minus_one_ptid; | |
2675 | else | |
2676 | ptid = inferior_ptid; | |
2677 | target_stop (ptid); | |
252fbfc8 PA |
2678 | |
2679 | /* Tag the thread as having been explicitly requested to stop, so | |
2680 | other parts of gdb know not to resume this thread automatically, | |
2681 | if it was stopped due to an internal event. Limit this to | |
2682 | non-stop mode, as when debugging a multi-threaded application in | |
2683 | all-stop mode, we will only get one stop event --- it's undefined | |
2684 | which thread will report the event. */ | |
2685 | if (non_stop) | |
2686 | set_stop_requested (ptid, 1); | |
77ebaa5a VP |
2687 | } |
2688 | ||
43ff13b4 | 2689 | /* Stop the execution of the target while running in async mode, in |
8cae4b3f PA |
2690 | the backgound. In all-stop, stop the whole process. In non-stop |
2691 | mode, stop the current thread only by default, or stop all threads | |
2692 | if the `-a' switch is used. */ | |
2693 | ||
2694 | /* interrupt [-a] */ | |
8b93c638 | 2695 | void |
fba45db2 | 2696 | interrupt_target_command (char *args, int from_tty) |
43ff13b4 | 2697 | { |
362646f5 | 2698 | if (target_can_async_p ()) |
43ff13b4 | 2699 | { |
8cae4b3f PA |
2700 | int all_threads = 0; |
2701 | ||
1777feb0 | 2702 | dont_repeat (); /* Not for the faint of heart. */ |
94cc34af | 2703 | |
8cae4b3f PA |
2704 | if (args != NULL |
2705 | && strncmp (args, "-a", sizeof ("-a") - 1) == 0) | |
2706 | all_threads = 1; | |
2707 | ||
2708 | if (!non_stop && all_threads) | |
2709 | error (_("-a is meaningless in all-stop mode.")); | |
2710 | ||
77ebaa5a | 2711 | interrupt_target_1 (all_threads); |
43ff13b4 JM |
2712 | } |
2713 | } | |
2714 | ||
c906108c | 2715 | static void |
d80b854b | 2716 | print_float_info (struct ui_file *file, |
23e3a7ac | 2717 | struct frame_info *frame, const char *args) |
c906108c | 2718 | { |
d80b854b UW |
2719 | struct gdbarch *gdbarch = get_frame_arch (frame); |
2720 | ||
23e3a7ac AC |
2721 | if (gdbarch_print_float_info_p (gdbarch)) |
2722 | gdbarch_print_float_info (gdbarch, file, frame, args); | |
2723 | else | |
2724 | { | |
23e3a7ac AC |
2725 | int regnum; |
2726 | int printed_something = 0; | |
ab4327e0 | 2727 | |
f57d151a | 2728 | for (regnum = 0; |
a4bd449d UW |
2729 | regnum < gdbarch_num_regs (gdbarch) |
2730 | + gdbarch_num_pseudo_regs (gdbarch); | |
f57d151a | 2731 | regnum++) |
23e3a7ac | 2732 | { |
f9418c0f | 2733 | if (gdbarch_register_reggroup_p (gdbarch, regnum, float_reggroup)) |
23e3a7ac AC |
2734 | { |
2735 | printed_something = 1; | |
23e3a7ac | 2736 | gdbarch_print_registers_info (gdbarch, file, frame, regnum, 1); |
23e3a7ac AC |
2737 | } |
2738 | } | |
2739 | if (!printed_something) | |
3e43a32a MS |
2740 | fprintf_filtered (file, "No floating-point info " |
2741 | "available for this processor.\n"); | |
23e3a7ac AC |
2742 | } |
2743 | } | |
2744 | ||
2745 | static void | |
2746 | float_info (char *args, int from_tty) | |
2747 | { | |
206415a3 DJ |
2748 | if (!target_has_registers) |
2749 | error (_("The program has no registers now.")); | |
2750 | ||
d80b854b | 2751 | print_float_info (gdb_stdout, get_selected_frame (NULL), args); |
c906108c SS |
2752 | } |
2753 | \f | |
c906108c | 2754 | static void |
fba45db2 | 2755 | unset_command (char *args, int from_tty) |
c906108c | 2756 | { |
3e43a32a MS |
2757 | printf_filtered (_("\"unset\" must be followed by the " |
2758 | "name of an unset subcommand.\n")); | |
c906108c SS |
2759 | help_list (unsetlist, "unset ", -1, gdb_stdout); |
2760 | } | |
2761 | ||
2762 | void | |
fba45db2 | 2763 | _initialize_infcmd (void) |
c906108c | 2764 | { |
3cb3b8df BR |
2765 | struct cmd_list_element *c = NULL; |
2766 | ||
1777feb0 | 2767 | /* Add the filename of the terminal connected to inferior I/O. */ |
3cb3b8df | 2768 | add_setshow_filename_cmd ("inferior-tty", class_run, |
3f81c18a | 2769 | &inferior_io_terminal_scratch, _("\ |
3cb3b8df BR |
2770 | Set terminal for future runs of program being debugged."), _("\ |
2771 | Show terminal for future runs of program being debugged."), _("\ | |
3f81c18a VP |
2772 | Usage: set inferior-tty /dev/pts/1"), |
2773 | set_inferior_tty_command, | |
2774 | show_inferior_tty_command, | |
2775 | &setlist, &showlist); | |
3cb3b8df | 2776 | add_com_alias ("tty", "set inferior-tty", class_alias, 0); |
c906108c | 2777 | |
b4b4ac0b | 2778 | add_setshow_optional_filename_cmd ("args", class_run, |
3f81c18a | 2779 | &inferior_args_scratch, _("\ |
b4b4ac0b AC |
2780 | Set argument list to give program being debugged when it is started."), _("\ |
2781 | Show argument list to give program being debugged when it is started."), _("\ | |
2782 | Follow this command with any number of args, to be passed to the program."), | |
3f81c18a VP |
2783 | set_args_command, |
2784 | show_args_command, | |
b4b4ac0b | 2785 | &setlist, &showlist); |
c906108c | 2786 | |
1a966eab AC |
2787 | c = add_cmd ("environment", no_class, environment_info, _("\ |
2788 | The environment to give the program, or one variable's value.\n\ | |
c906108c SS |
2789 | With an argument VAR, prints the value of environment variable VAR to\n\ |
2790 | give the program being debugged. With no arguments, prints the entire\n\ | |
1a966eab | 2791 | environment to be given to the program."), &showlist); |
5ba2abeb | 2792 | set_cmd_completer (c, noop_completer); |
c906108c SS |
2793 | |
2794 | add_prefix_cmd ("unset", no_class, unset_command, | |
1bedd215 | 2795 | _("Complement to certain \"set\" commands."), |
c906108c | 2796 | &unsetlist, "unset ", 0, &cmdlist); |
c5aa993b | 2797 | |
1a966eab AC |
2798 | c = add_cmd ("environment", class_run, unset_environment_command, _("\ |
2799 | Cancel environment variable VAR for the program.\n\ | |
2800 | This does not affect the program until the next \"run\" command."), | |
c5aa993b | 2801 | &unsetlist); |
5ba2abeb | 2802 | set_cmd_completer (c, noop_completer); |
c906108c | 2803 | |
1a966eab AC |
2804 | c = add_cmd ("environment", class_run, set_environment_command, _("\ |
2805 | Set environment variable value to give the program.\n\ | |
c906108c SS |
2806 | Arguments are VAR VALUE where VAR is variable name and VALUE is value.\n\ |
2807 | VALUES of environment variables are uninterpreted strings.\n\ | |
1a966eab | 2808 | This does not affect the program until the next \"run\" command."), |
c5aa993b | 2809 | &setlist); |
5ba2abeb | 2810 | set_cmd_completer (c, noop_completer); |
c5aa993b | 2811 | |
1bedd215 AC |
2812 | c = add_com ("path", class_files, path_command, _("\ |
2813 | Add directory DIR(s) to beginning of search path for object files.\n\ | |
c906108c SS |
2814 | $cwd in the path means the current working directory.\n\ |
2815 | This path is equivalent to the $PATH shell variable. It is a list of\n\ | |
2816 | directories, separated by colons. These directories are searched to find\n\ | |
3e43a32a MS |
2817 | fully linked executable files and separately compiled object files as \ |
2818 | needed.")); | |
5ba2abeb | 2819 | set_cmd_completer (c, filename_completer); |
c906108c | 2820 | |
1a966eab AC |
2821 | c = add_cmd ("paths", no_class, path_info, _("\ |
2822 | Current search path for finding object files.\n\ | |
c906108c SS |
2823 | $cwd in the path means the current working directory.\n\ |
2824 | This path is equivalent to the $PATH shell variable. It is a list of\n\ | |
2825 | directories, separated by colons. These directories are searched to find\n\ | |
3e43a32a MS |
2826 | fully linked executable files and separately compiled object files as \ |
2827 | needed."), | |
c906108c | 2828 | &showlist); |
5ba2abeb | 2829 | set_cmd_completer (c, noop_completer); |
c906108c | 2830 | |
2277426b PA |
2831 | add_prefix_cmd ("kill", class_run, kill_command, |
2832 | _("Kill execution of program being debugged."), | |
2833 | &killlist, "kill ", 0, &cmdlist); | |
5fd62852 | 2834 | |
1bedd215 AC |
2835 | add_com ("attach", class_run, attach_command, _("\ |
2836 | Attach to a process or file outside of GDB.\n\ | |
c906108c SS |
2837 | This command attaches to another target, of the same type as your last\n\ |
2838 | \"target\" command (\"info files\" will show your target stack).\n\ | |
2839 | The command may take as argument a process id or a device file.\n\ | |
2840 | For a process id, you must have permission to send the process a signal,\n\ | |
2841 | and it must have the same effective uid as the debugger.\n\ | |
2842 | When using \"attach\" with a process id, the debugger finds the\n\ | |
2843 | program running in the process, looking first in the current working\n\ | |
2844 | directory, or (if not found there) using the source file search path\n\ | |
2845 | (see the \"directory\" command). You can also use the \"file\" command\n\ | |
1bedd215 | 2846 | to specify the program, and to load its symbol table.")); |
c906108c | 2847 | |
f73adfeb | 2848 | add_prefix_cmd ("detach", class_run, detach_command, _("\ |
1bedd215 | 2849 | Detach a process or file previously attached.\n\ |
c906108c | 2850 | If a process, it is no longer traced, and it continues its execution. If\n\ |
f73adfeb AS |
2851 | you were debugging a file, the file is closed and gdb no longer accesses it."), |
2852 | &detachlist, "detach ", 0, &cmdlist); | |
c906108c | 2853 | |
1bedd215 AC |
2854 | add_com ("disconnect", class_run, disconnect_command, _("\ |
2855 | Disconnect from a target.\n\ | |
6ad8ae5c | 2856 | The target will wait for another debugger to connect. Not available for\n\ |
1bedd215 | 2857 | all targets.")); |
6ad8ae5c | 2858 | |
1bedd215 AC |
2859 | add_com ("signal", class_run, signal_command, _("\ |
2860 | Continue program giving it signal specified by the argument.\n\ | |
2861 | An argument of \"0\" means continue program without giving it a signal.")); | |
c906108c | 2862 | |
1bedd215 AC |
2863 | add_com ("stepi", class_run, stepi_command, _("\ |
2864 | Step one instruction exactly.\n\ | |
3e43a32a MS |
2865 | Argument N means do this N times (or till program stops for another \ |
2866 | reason).")); | |
c906108c SS |
2867 | add_com_alias ("si", "stepi", class_alias, 0); |
2868 | ||
1bedd215 AC |
2869 | add_com ("nexti", class_run, nexti_command, _("\ |
2870 | Step one instruction, but proceed through subroutine calls.\n\ | |
3e43a32a MS |
2871 | Argument N means do this N times (or till program stops for another \ |
2872 | reason).")); | |
c906108c SS |
2873 | add_com_alias ("ni", "nexti", class_alias, 0); |
2874 | ||
1bedd215 AC |
2875 | add_com ("finish", class_run, finish_command, _("\ |
2876 | Execute until selected stack frame returns.\n\ | |
2877 | Upon return, the value returned is printed and put in the value history.")); | |
0e479716 | 2878 | add_com_alias ("fin", "finish", class_run, 1); |
c906108c | 2879 | |
1bedd215 AC |
2880 | add_com ("next", class_run, next_command, _("\ |
2881 | Step program, proceeding through subroutine calls.\n\ | |
c906108c SS |
2882 | Like the \"step\" command as long as subroutine calls do not happen;\n\ |
2883 | when they do, the call is treated as one instruction.\n\ | |
3e43a32a MS |
2884 | Argument N means do this N times (or till program stops for another \ |
2885 | reason).")); | |
c906108c SS |
2886 | add_com_alias ("n", "next", class_run, 1); |
2887 | if (xdb_commands) | |
c5aa993b | 2888 | add_com_alias ("S", "next", class_run, 1); |
c906108c | 2889 | |
1bedd215 AC |
2890 | add_com ("step", class_run, step_command, _("\ |
2891 | Step program until it reaches a different source line.\n\ | |
3e43a32a MS |
2892 | Argument N means do this N times (or till program stops for another \ |
2893 | reason).")); | |
c906108c SS |
2894 | add_com_alias ("s", "step", class_run, 1); |
2895 | ||
1bedd215 AC |
2896 | c = add_com ("until", class_run, until_command, _("\ |
2897 | Execute until the program reaches a source line greater than the current\n\ | |
3e43a32a MS |
2898 | or a specified location (same args as break command) within the current \ |
2899 | frame.")); | |
5ba2abeb | 2900 | set_cmd_completer (c, location_completer); |
c906108c | 2901 | add_com_alias ("u", "until", class_run, 1); |
c5aa993b | 2902 | |
1bedd215 | 2903 | c = add_com ("advance", class_run, advance_command, _("\ |
3e43a32a MS |
2904 | Continue the program up to the given location (same form as args for break \ |
2905 | command).\n\ | |
1bedd215 | 2906 | Execution will also stop upon exit from the current stack frame.")); |
ae66c1fc EZ |
2907 | set_cmd_completer (c, location_completer); |
2908 | ||
1bedd215 AC |
2909 | c = add_com ("jump", class_run, jump_command, _("\ |
2910 | Continue program being debugged at specified line or address.\n\ | |
c906108c | 2911 | Give as argument either LINENUM or *ADDR, where ADDR is an expression\n\ |
1bedd215 | 2912 | for an address to start at.")); |
5ba2abeb | 2913 | set_cmd_completer (c, location_completer); |
c906108c | 2914 | |
b83266a0 | 2915 | if (xdb_commands) |
c94fdfd0 | 2916 | { |
1bedd215 AC |
2917 | c = add_com ("go", class_run, go_command, _("\ |
2918 | Usage: go <location>\n\ | |
c906108c SS |
2919 | Continue program being debugged, stopping at specified line or \n\ |
2920 | address.\n\ | |
2921 | Give as argument either LINENUM or *ADDR, where ADDR is an \n\ | |
2922 | expression for an address to start at.\n\ | |
1bedd215 | 2923 | This command is a combination of tbreak and jump.")); |
5ba2abeb | 2924 | set_cmd_completer (c, location_completer); |
c94fdfd0 | 2925 | } |
b83266a0 | 2926 | |
c906108c | 2927 | if (xdb_commands) |
c5aa993b | 2928 | add_com_alias ("g", "go", class_run, 1); |
c906108c | 2929 | |
df983543 | 2930 | add_com ("continue", class_run, continue_command, _("\ |
1bedd215 | 2931 | Continue program being debugged, after signal or breakpoint.\n\ |
c906108c SS |
2932 | If proceeding from breakpoint, a number N may be used as an argument,\n\ |
2933 | which means to set the ignore count of that breakpoint to N - 1 (so that\n\ | |
8cae4b3f PA |
2934 | the breakpoint won't break until the Nth time it is reached).\n\ |
2935 | \n\ | |
2936 | If non-stop mode is enabled, continue only the current thread,\n\ | |
2937 | otherwise all the threads in the program are continued. To \n\ | |
2938 | continue all stopped threads in non-stop mode, use the -a option.\n\ | |
2939 | Specifying -a and an ignore count simultaneously is an error.")); | |
c906108c SS |
2940 | add_com_alias ("c", "cont", class_run, 1); |
2941 | add_com_alias ("fg", "cont", class_run, 1); | |
2942 | ||
1bedd215 AC |
2943 | c = add_com ("run", class_run, run_command, _("\ |
2944 | Start debugged program. You may specify arguments to give it.\n\ | |
c906108c | 2945 | Args may include \"*\", or \"[...]\"; they are expanded using \"sh\".\n\ |
3e43a32a MS |
2946 | Input and output redirection with \">\", \"<\", or \">>\" are also \ |
2947 | allowed.\n\n\ | |
2948 | With no arguments, uses arguments last specified (with \"run\" \ | |
2949 | or \"set args\").\n\ | |
c906108c | 2950 | To cancel previous arguments and run with no arguments,\n\ |
1bedd215 | 2951 | use \"set args\" without arguments.")); |
5ba2abeb | 2952 | set_cmd_completer (c, filename_completer); |
c906108c SS |
2953 | add_com_alias ("r", "run", class_run, 1); |
2954 | if (xdb_commands) | |
2955 | add_com ("R", class_run, run_no_args_command, | |
1bedd215 | 2956 | _("Start debugged program with no arguments.")); |
c906108c | 2957 | |
1bedd215 | 2958 | c = add_com ("start", class_run, start_command, _("\ |
a4d5f2e0 JB |
2959 | Run the debugged program until the beginning of the main procedure.\n\ |
2960 | You may specify arguments to give to your program, just as with the\n\ | |
1bedd215 | 2961 | \"run\" command.")); |
a4d5f2e0 JB |
2962 | set_cmd_completer (c, filename_completer); |
2963 | ||
df983543 MS |
2964 | add_com ("interrupt", class_run, interrupt_target_command, |
2965 | _("Interrupt the execution of the debugged program.\n\ | |
8cae4b3f PA |
2966 | If non-stop mode is enabled, interrupt only the current thread,\n\ |
2967 | otherwise all the threads in the program are stopped. To \n\ | |
2968 | interrupt all running threads in non-stop mode, use the -a option.")); | |
43ff13b4 | 2969 | |
1bedd215 AC |
2970 | add_info ("registers", nofp_registers_info, _("\ |
2971 | List of integer registers and their contents, for selected stack frame.\n\ | |
2972 | Register name as argument means describe only that register.")); | |
7194c49b | 2973 | add_info_alias ("r", "registers", 1); |
c906108c SS |
2974 | |
2975 | if (xdb_commands) | |
1bedd215 AC |
2976 | add_com ("lr", class_info, nofp_registers_info, _("\ |
2977 | List of integer registers and their contents, for selected stack frame.\n\ | |
2978 | Register name as argument means describe only that register.")); | |
2979 | add_info ("all-registers", all_registers_info, _("\ | |
2980 | List of all registers and their contents, for selected stack frame.\n\ | |
2981 | Register name as argument means describe only that register.")); | |
c906108c SS |
2982 | |
2983 | add_info ("program", program_info, | |
1bedd215 | 2984 | _("Execution status of the program.")); |
c906108c SS |
2985 | |
2986 | add_info ("float", float_info, | |
1bedd215 | 2987 | _("Print the status of the floating point unit\n")); |
c906108c | 2988 | |
e76f1f2e | 2989 | add_info ("vector", vector_info, |
1bedd215 | 2990 | _("Print the status of the vector unit\n")); |
c906108c | 2991 | } |