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" |
d5551862 | 58 | |
a58dd373 | 59 | /* Functions exported for general use, in inferior.h: */ |
c906108c | 60 | |
a14ed312 | 61 | void all_registers_info (char *, int); |
c906108c | 62 | |
a14ed312 | 63 | void registers_info (char *, int); |
c906108c | 64 | |
a58dd373 EZ |
65 | void nexti_command (char *, int); |
66 | ||
67 | void stepi_command (char *, int); | |
c906108c | 68 | |
a14ed312 | 69 | void continue_command (char *, int); |
c906108c | 70 | |
a58dd373 EZ |
71 | void interrupt_target_command (char *args, int from_tty); |
72 | ||
73 | /* Local functions: */ | |
74 | ||
75 | static void nofp_registers_info (char *, int); | |
76 | ||
c055b101 CV |
77 | static void print_return_value (struct type *func_type, |
78 | struct type *value_type); | |
11cf8741 | 79 | |
a14ed312 | 80 | static void until_next_command (int); |
c906108c | 81 | |
a14ed312 | 82 | static void until_command (char *, int); |
c906108c | 83 | |
a14ed312 | 84 | static void path_info (char *, int); |
c906108c | 85 | |
a14ed312 | 86 | static void path_command (char *, int); |
c906108c | 87 | |
a14ed312 | 88 | static void unset_command (char *, int); |
c906108c | 89 | |
a14ed312 | 90 | static void float_info (char *, int); |
c906108c | 91 | |
6ad8ae5c DJ |
92 | static void disconnect_command (char *, int); |
93 | ||
a14ed312 | 94 | static void unset_environment_command (char *, int); |
c906108c | 95 | |
a14ed312 | 96 | static void set_environment_command (char *, int); |
c906108c | 97 | |
a14ed312 | 98 | static void environment_info (char *, int); |
c906108c | 99 | |
a14ed312 | 100 | static void program_info (char *, int); |
c906108c | 101 | |
a14ed312 | 102 | static void finish_command (char *, int); |
c906108c | 103 | |
a14ed312 | 104 | static void signal_command (char *, int); |
c906108c | 105 | |
a14ed312 | 106 | static void jump_command (char *, int); |
c906108c | 107 | |
a14ed312 | 108 | static void step_1 (int, int, char *); |
3e43a32a MS |
109 | static void step_once (int skip_subroutines, int single_inst, |
110 | int count, int thread); | |
c906108c | 111 | |
a14ed312 | 112 | static void next_command (char *, int); |
c906108c | 113 | |
a14ed312 | 114 | static void step_command (char *, int); |
c906108c | 115 | |
a14ed312 | 116 | static void run_command (char *, int); |
c906108c | 117 | |
a14ed312 | 118 | static void run_no_args_command (char *args, int from_tty); |
392a587b | 119 | |
a14ed312 | 120 | static void go_command (char *line_no, int from_tty); |
392a587b | 121 | |
a14ed312 | 122 | static int strip_bg_char (char **); |
43ff13b4 | 123 | |
a14ed312 | 124 | void _initialize_infcmd (void); |
c906108c | 125 | |
c906108c | 126 | #define ERROR_NO_INFERIOR \ |
8a3fe4f8 | 127 | if (!target_has_execution) error (_("The program is not being run.")); |
c906108c | 128 | |
3e43a32a MS |
129 | /* Scratch area where string containing arguments to give to the |
130 | program will be stored by 'set args'. As soon as anything is | |
131 | stored, notice_args_set will move it into per-inferior storage. | |
1777feb0 | 132 | Arguments are separated by spaces. Empty string (pointer to '\0') |
3e43a32a | 133 | means no args. */ |
c906108c | 134 | |
3f81c18a | 135 | static char *inferior_args_scratch; |
c906108c | 136 | |
3f81c18a VP |
137 | /* Scratch area where 'set inferior-tty' will store user-provided value. |
138 | We'll immediate copy it into per-inferior storage. */ | |
552c04a7 | 139 | |
3f81c18a | 140 | static char *inferior_io_terminal_scratch; |
c906108c SS |
141 | |
142 | /* Pid of our debugged inferior, or 0 if no inferior now. | |
143 | Since various parts of infrun.c test this to see whether there is a program | |
144 | being debugged it should be nonzero (currently 3 is used) for remote | |
145 | debugging. */ | |
146 | ||
39f77062 | 147 | ptid_t inferior_ptid; |
c906108c | 148 | |
c906108c SS |
149 | /* Address at which inferior stopped. */ |
150 | ||
151 | CORE_ADDR stop_pc; | |
152 | ||
c906108c SS |
153 | /* Flag indicating that a command has proceeded the inferior past the |
154 | current breakpoint. */ | |
155 | ||
156 | int breakpoint_proceeded; | |
157 | ||
c906108c SS |
158 | /* Nonzero if stopped due to completion of a stack dummy routine. */ |
159 | ||
aa7d318d | 160 | enum stop_stack_kind stop_stack_dummy; |
c906108c SS |
161 | |
162 | /* Nonzero if stopped due to a random (unexpected) signal in inferior | |
163 | process. */ | |
164 | ||
165 | int stopped_by_random_signal; | |
166 | ||
c906108c | 167 | \f |
1777feb0 | 168 | /* Accessor routines. */ |
07091751 | 169 | |
3f81c18a VP |
170 | /* Set the io terminal for the current inferior. Ownership of |
171 | TERMINAL_NAME is not transferred. */ | |
172 | ||
3cb3b8df BR |
173 | void |
174 | set_inferior_io_terminal (const char *terminal_name) | |
175 | { | |
3f81c18a VP |
176 | xfree (current_inferior ()->terminal); |
177 | current_inferior ()->terminal = terminal_name ? xstrdup (terminal_name) : 0; | |
3cb3b8df BR |
178 | } |
179 | ||
180 | const char * | |
181 | get_inferior_io_terminal (void) | |
182 | { | |
3f81c18a VP |
183 | return current_inferior ()->terminal; |
184 | } | |
185 | ||
186 | static void | |
187 | set_inferior_tty_command (char *args, int from_tty, | |
188 | struct cmd_list_element *c) | |
189 | { | |
190 | /* CLI has assigned the user-provided value to inferior_io_terminal_scratch. | |
191 | Now route it to current inferior. */ | |
192 | set_inferior_io_terminal (inferior_io_terminal_scratch); | |
193 | } | |
194 | ||
195 | static void | |
196 | show_inferior_tty_command (struct ui_file *file, int from_tty, | |
197 | struct cmd_list_element *c, const char *value) | |
198 | { | |
199 | /* Note that we ignore the passed-in value in favor of computing it | |
200 | directly. */ | |
275f2e57 | 201 | const char *inferior_io_terminal = get_inferior_io_terminal (); |
abbb1732 | 202 | |
275f2e57 DJ |
203 | if (inferior_io_terminal == NULL) |
204 | inferior_io_terminal = ""; | |
3f81c18a | 205 | fprintf_filtered (gdb_stdout, |
275f2e57 DJ |
206 | _("Terminal for future runs of program being debugged " |
207 | "is \"%s\".\n"), inferior_io_terminal); | |
3cb3b8df BR |
208 | } |
209 | ||
07091751 FN |
210 | char * |
211 | get_inferior_args (void) | |
212 | { | |
3f81c18a | 213 | if (current_inferior ()->argc != 0) |
552c04a7 | 214 | { |
3f81c18a | 215 | char *n; |
552c04a7 | 216 | |
3f81c18a VP |
217 | n = construct_inferior_arguments (current_inferior ()->argc, |
218 | current_inferior ()->argv); | |
219 | set_inferior_args (n); | |
220 | xfree (n); | |
552c04a7 TT |
221 | } |
222 | ||
3f81c18a VP |
223 | if (current_inferior ()->args == NULL) |
224 | current_inferior ()->args = xstrdup (""); | |
552c04a7 | 225 | |
3f81c18a | 226 | return current_inferior ()->args; |
07091751 FN |
227 | } |
228 | ||
3f81c18a VP |
229 | /* Set the arguments for the current inferior. Ownership of |
230 | NEWARGS is not transferred. */ | |
231 | ||
232 | void | |
07091751 FN |
233 | set_inferior_args (char *newargs) |
234 | { | |
3f81c18a VP |
235 | xfree (current_inferior ()->args); |
236 | current_inferior ()->args = newargs ? xstrdup (newargs) : NULL; | |
237 | current_inferior ()->argc = 0; | |
238 | current_inferior ()->argv = 0; | |
07091751 | 239 | } |
c5aa993b | 240 | |
552c04a7 TT |
241 | void |
242 | set_inferior_args_vector (int argc, char **argv) | |
243 | { | |
3f81c18a VP |
244 | current_inferior ()->argc = argc; |
245 | current_inferior ()->argv = argv; | |
552c04a7 TT |
246 | } |
247 | ||
248 | /* Notice when `set args' is run. */ | |
249 | static void | |
3f81c18a | 250 | set_args_command (char *args, int from_tty, struct cmd_list_element *c) |
552c04a7 | 251 | { |
3f81c18a VP |
252 | /* CLI has assigned the user-provided value to inferior_args_scratch. |
253 | Now route it to current inferior. */ | |
254 | set_inferior_args (inferior_args_scratch); | |
552c04a7 TT |
255 | } |
256 | ||
257 | /* Notice when `show args' is run. */ | |
258 | static void | |
3f81c18a VP |
259 | show_args_command (struct ui_file *file, int from_tty, |
260 | struct cmd_list_element *c, const char *value) | |
552c04a7 | 261 | { |
258c00cc TT |
262 | /* Note that we ignore the passed-in value in favor of computing it |
263 | directly. */ | |
264 | deprecated_show_value_hack (file, from_tty, c, get_inferior_args ()); | |
552c04a7 TT |
265 | } |
266 | ||
c2a727fa TT |
267 | \f |
268 | /* Compute command-line string given argument vector. This does the | |
269 | same shell processing as fork_inferior. */ | |
c2a727fa | 270 | char * |
bd57a748 | 271 | construct_inferior_arguments (int argc, char **argv) |
c2a727fa TT |
272 | { |
273 | char *result; | |
274 | ||
275 | if (STARTUP_WITH_SHELL) | |
276 | { | |
277 | /* This holds all the characters considered special to the | |
278 | typical Unix shells. We include `^' because the SunOS | |
279 | /bin/sh treats it as a synonym for `|'. */ | |
280 | char *special = "\"!#$&*()\\|[]{}<>?'\"`~^; \t\n"; | |
281 | int i; | |
282 | int length = 0; | |
283 | char *out, *cp; | |
284 | ||
285 | /* We over-compute the size. It shouldn't matter. */ | |
286 | for (i = 0; i < argc; ++i) | |
c2226152 | 287 | length += 3 * strlen (argv[i]) + 1 + 2 * (argv[i][0] == '\0'); |
c2a727fa TT |
288 | |
289 | result = (char *) xmalloc (length); | |
290 | out = result; | |
291 | ||
292 | for (i = 0; i < argc; ++i) | |
293 | { | |
294 | if (i > 0) | |
295 | *out++ = ' '; | |
296 | ||
03c6228e AS |
297 | /* Need to handle empty arguments specially. */ |
298 | if (argv[i][0] == '\0') | |
c2a727fa | 299 | { |
03c6228e AS |
300 | *out++ = '\''; |
301 | *out++ = '\''; | |
302 | } | |
303 | else | |
304 | { | |
305 | for (cp = argv[i]; *cp; ++cp) | |
306 | { | |
c2226152 AS |
307 | if (*cp == '\n') |
308 | { | |
309 | /* A newline cannot be quoted with a backslash (it | |
310 | just disappears), only by putting it inside | |
311 | quotes. */ | |
312 | *out++ = '\''; | |
313 | *out++ = '\n'; | |
314 | *out++ = '\''; | |
315 | } | |
316 | else | |
317 | { | |
318 | if (strchr (special, *cp) != NULL) | |
319 | *out++ = '\\'; | |
320 | *out++ = *cp; | |
321 | } | |
03c6228e | 322 | } |
c2a727fa TT |
323 | } |
324 | } | |
325 | *out = '\0'; | |
326 | } | |
327 | else | |
328 | { | |
329 | /* In this case we can't handle arguments that contain spaces, | |
330 | tabs, or newlines -- see breakup_args(). */ | |
331 | int i; | |
332 | int length = 0; | |
333 | ||
334 | for (i = 0; i < argc; ++i) | |
335 | { | |
336 | char *cp = strchr (argv[i], ' '); | |
337 | if (cp == NULL) | |
338 | cp = strchr (argv[i], '\t'); | |
339 | if (cp == NULL) | |
340 | cp = strchr (argv[i], '\n'); | |
341 | if (cp != NULL) | |
3e43a32a MS |
342 | error (_("can't handle command-line " |
343 | "argument containing whitespace")); | |
c2a727fa TT |
344 | length += strlen (argv[i]) + 1; |
345 | } | |
346 | ||
347 | result = (char *) xmalloc (length); | |
348 | result[0] = '\0'; | |
349 | for (i = 0; i < argc; ++i) | |
350 | { | |
351 | if (i > 0) | |
352 | strcat (result, " "); | |
353 | strcat (result, argv[i]); | |
354 | } | |
355 | } | |
356 | ||
357 | return result; | |
358 | } | |
552c04a7 TT |
359 | \f |
360 | ||
43ff13b4 JM |
361 | /* This function detects whether or not a '&' character (indicating |
362 | background execution) has been added as *the last* of the arguments ARGS | |
1777feb0 MS |
363 | of a command. If it has, it removes it and returns 1. Otherwise it |
364 | does nothing and returns 0. */ | |
c5aa993b | 365 | static int |
fba45db2 | 366 | strip_bg_char (char **args) |
43ff13b4 JM |
367 | { |
368 | char *p = NULL; | |
c5aa993b | 369 | |
9846de1b | 370 | p = strchr (*args, '&'); |
c5aa993b | 371 | |
9846de1b | 372 | if (p) |
43ff13b4 JM |
373 | { |
374 | if (p == (*args + strlen (*args) - 1)) | |
375 | { | |
c5aa993b | 376 | if (strlen (*args) > 1) |
43ff13b4 JM |
377 | { |
378 | do | |
379 | p--; | |
380 | while (*p == ' ' || *p == '\t'); | |
381 | *(p + 1) = '\0'; | |
382 | } | |
383 | else | |
384 | *args = 0; | |
385 | return 1; | |
386 | } | |
387 | } | |
388 | return 0; | |
389 | } | |
390 | ||
281b533b DJ |
391 | /* Common actions to take after creating any sort of inferior, by any |
392 | means (running, attaching, connecting, et cetera). The target | |
393 | should be stopped. */ | |
394 | ||
395 | void | |
396 | post_create_inferior (struct target_ops *target, int from_tty) | |
397 | { | |
b79599ff DP |
398 | /* Be sure we own the terminal in case write operations are performed. */ |
399 | target_terminal_ours (); | |
400 | ||
424163ea DJ |
401 | /* If the target hasn't taken care of this already, do it now. |
402 | Targets which need to access registers during to_open, | |
403 | to_create_inferior, or to_attach should do it earlier; but many | |
404 | don't need to. */ | |
405 | target_find_description (); | |
406 | ||
f698437e | 407 | /* Now that we know the register layout, retrieve current PC. */ |
fb14de7b | 408 | stop_pc = regcache_read_pc (get_current_regcache ()); |
f698437e | 409 | |
50c71eaf PA |
410 | if (exec_bfd) |
411 | { | |
9353355f DJ |
412 | /* Create the hooks to handle shared library load and unload |
413 | events. */ | |
414 | #ifdef SOLIB_CREATE_INFERIOR_HOOK | |
37706b70 | 415 | SOLIB_CREATE_INFERIOR_HOOK (PIDGET (inferior_ptid)); |
9353355f | 416 | #else |
268a4a75 JK |
417 | solib_create_inferior_hook (from_tty); |
418 | #endif | |
419 | } | |
420 | ||
421 | /* If the solist is global across processes, there's no need to | |
422 | refetch it here. */ | |
423 | if (exec_bfd && !gdbarch_has_global_solist (target_gdbarch)) | |
424 | { | |
425 | /* Sometimes the platform-specific hook loads initial shared | |
426 | libraries, and sometimes it doesn't. If it doesn't FROM_TTY will be | |
427 | incorrectly 0 but such solib targets should be fixed anyway. If we | |
428 | made all the inferior hook methods consistent, this call could be | |
429 | removed. Call it only after the solib target has been initialized by | |
430 | solib_create_inferior_hook. */ | |
431 | ||
432 | #ifdef SOLIB_ADD | |
433 | SOLIB_ADD (NULL, 0, target, auto_solib_add); | |
434 | #else | |
435 | solib_add (NULL, 0, target, auto_solib_add); | |
9353355f | 436 | #endif |
9353355f DJ |
437 | } |
438 | ||
ea5d7a99 PM |
439 | /* If the user sets watchpoints before execution having started, |
440 | then she gets software watchpoints, because GDB can't know which | |
441 | target will end up being pushed, or if it supports hardware | |
442 | watchpoints or not. breakpoint_re_set takes care of promoting | |
443 | watchpoints to hardware watchpoints if possible, however, if this | |
444 | new inferior doesn't load shared libraries or we don't pull in | |
445 | symbols from any other source on this target/arch, | |
446 | breakpoint_re_set is never called. Call it now so that software | |
447 | watchpoints get a chance to be promoted to hardware watchpoints | |
448 | if the now pushed target supports hardware watchpoints. */ | |
449 | breakpoint_re_set (); | |
450 | ||
281b533b DJ |
451 | observer_notify_inferior_created (target, from_tty); |
452 | } | |
453 | ||
a4d5f2e0 JB |
454 | /* Kill the inferior if already running. This function is designed |
455 | to be called when we are about to start the execution of the program | |
456 | from the beginning. Ask the user to confirm that he wants to restart | |
457 | the program being debugged when FROM_TTY is non-null. */ | |
c906108c | 458 | |
8edfe269 | 459 | static void |
a4d5f2e0 JB |
460 | kill_if_already_running (int from_tty) |
461 | { | |
39f77062 | 462 | if (! ptid_equal (inferior_ptid, null_ptid) && target_has_execution) |
c906108c | 463 | { |
8edfe269 DJ |
464 | /* Bail out before killing the program if we will not be able to |
465 | restart it. */ | |
466 | target_require_runnable (); | |
467 | ||
adf40b2e | 468 | if (from_tty |
9e2f0ad4 HZ |
469 | && !query (_("The program being debugged has been started already.\n\ |
470 | Start it from the beginning? "))) | |
8a3fe4f8 | 471 | error (_("Program not restarted.")); |
c906108c | 472 | target_kill (); |
c906108c | 473 | } |
a4d5f2e0 JB |
474 | } |
475 | ||
1777feb0 | 476 | /* Implement the "run" command. If TBREAK_AT_MAIN is set, then insert |
f67a969f JB |
477 | a temporary breakpoint at the begining of the main program before |
478 | running the program. */ | |
479 | ||
a4d5f2e0 | 480 | static void |
f67a969f | 481 | run_command_1 (char *args, int from_tty, int tbreak_at_main) |
a4d5f2e0 JB |
482 | { |
483 | char *exec_file; | |
29f49a6a PA |
484 | struct cleanup *old_chain; |
485 | ptid_t ptid; | |
c906108c | 486 | |
a4d5f2e0 JB |
487 | dont_repeat (); |
488 | ||
489 | kill_if_already_running (from_tty); | |
3c35e65b UW |
490 | |
491 | init_wait_for_inferior (); | |
c906108c SS |
492 | clear_breakpoint_hit_counts (); |
493 | ||
fd79ecee DJ |
494 | /* Clean up any leftovers from other runs. Some other things from |
495 | this function should probably be moved into target_pre_inferior. */ | |
496 | target_pre_inferior (from_tty); | |
497 | ||
39ad761d JB |
498 | /* The comment here used to read, "The exec file is re-read every |
499 | time we do a generic_mourn_inferior, so we just have to worry | |
500 | about the symbol file." The `generic_mourn_inferior' function | |
501 | gets called whenever the program exits. However, suppose the | |
502 | program exits, and *then* the executable file changes? We need | |
503 | to check again here. Since reopen_exec_file doesn't do anything | |
504 | if the timestamp hasn't changed, I don't see the harm. */ | |
505 | reopen_exec_file (); | |
c906108c SS |
506 | reread_symbols (); |
507 | ||
f67a969f JB |
508 | /* Insert the temporary breakpoint if a location was specified. */ |
509 | if (tbreak_at_main) | |
510 | tbreak_command (main_name (), 0); | |
511 | ||
39ad761d JB |
512 | exec_file = (char *) get_exec_file (0); |
513 | ||
9908b566 VP |
514 | if (non_stop && !target_supports_non_stop ()) |
515 | error (_("The target does not support running in non-stop mode.")); | |
516 | ||
c906108c SS |
517 | /* We keep symbols from add-symbol-file, on the grounds that the |
518 | user might want to add some symbols before running the program | |
519 | (right?). But sometimes (dynamic loading where the user manually | |
520 | introduces the new symbols with add-symbol-file), the code which | |
521 | the symbols describe does not persist between runs. Currently | |
522 | the user has to manually nuke all symbols between runs if they | |
523 | want them to go away (PR 2207). This is probably reasonable. */ | |
524 | ||
43ff13b4 | 525 | if (!args) |
6426a772 | 526 | { |
362646f5 | 527 | if (target_can_async_p ()) |
6426a772 JM |
528 | async_disable_stdin (); |
529 | } | |
43ff13b4 | 530 | else |
c906108c | 531 | { |
43ff13b4 JM |
532 | int async_exec = strip_bg_char (&args); |
533 | ||
534 | /* If we get a request for running in the bg but the target | |
1777feb0 | 535 | doesn't support it, error out. */ |
362646f5 | 536 | if (async_exec && !target_can_async_p ()) |
8a3fe4f8 | 537 | error (_("Asynchronous execution not supported on this target.")); |
43ff13b4 JM |
538 | |
539 | /* If we don't get a request of running in the bg, then we need | |
1777feb0 | 540 | to simulate synchronous (fg) execution. */ |
362646f5 | 541 | if (!async_exec && target_can_async_p ()) |
43ff13b4 | 542 | { |
1777feb0 | 543 | /* Simulate synchronous execution. */ |
6426a772 | 544 | async_disable_stdin (); |
43ff13b4 JM |
545 | } |
546 | ||
1777feb0 | 547 | /* If there were other args, beside '&', process them. */ |
43ff13b4 | 548 | if (args) |
3f81c18a | 549 | set_inferior_args (args); |
c906108c SS |
550 | } |
551 | ||
552 | if (from_tty) | |
553 | { | |
8b93c638 JM |
554 | ui_out_field_string (uiout, NULL, "Starting program"); |
555 | ui_out_text (uiout, ": "); | |
556 | if (exec_file) | |
557 | ui_out_field_string (uiout, "execfile", exec_file); | |
558 | ui_out_spaces (uiout, 1); | |
552c04a7 TT |
559 | /* We call get_inferior_args() because we might need to compute |
560 | the value now. */ | |
561 | ui_out_field_string (uiout, "infargs", get_inferior_args ()); | |
8b93c638 JM |
562 | ui_out_text (uiout, "\n"); |
563 | ui_out_flush (uiout); | |
c906108c SS |
564 | } |
565 | ||
552c04a7 TT |
566 | /* We call get_inferior_args() because we might need to compute |
567 | the value now. */ | |
568 | target_create_inferior (exec_file, get_inferior_args (), | |
3e43a32a MS |
569 | environ_vector (current_inferior ()->environment), |
570 | from_tty); | |
281b533b | 571 | |
29f49a6a PA |
572 | /* We're starting off a new process. When we get out of here, in |
573 | non-stop mode, finish the state of all threads of that process, | |
574 | but leave other threads alone, as they may be stopped in internal | |
575 | events --- the frontend shouldn't see them as stopped. In | |
576 | all-stop, always finish the state of all threads, as we may be | |
577 | resuming more than just the new process. */ | |
578 | if (non_stop) | |
579 | ptid = pid_to_ptid (ptid_get_pid (inferior_ptid)); | |
580 | else | |
581 | ptid = minus_one_ptid; | |
582 | old_chain = make_cleanup (finish_thread_state_cleanup, &ptid); | |
583 | ||
de1b3c3d PA |
584 | /* Pass zero for FROM_TTY, because at this point the "run" command |
585 | has done its thing; now we are setting up the running program. */ | |
586 | post_create_inferior (¤t_target, 0); | |
281b533b | 587 | |
74d1f91e JK |
588 | /* Start the target running. Do not use -1 continuation as it would skip |
589 | breakpoint right at the entry point. */ | |
590 | proceed (regcache_read_pc (get_current_regcache ()), TARGET_SIGNAL_0, 0); | |
c906108c | 591 | |
29f49a6a PA |
592 | /* Since there was no error, there's no need to finish the thread |
593 | states here. */ | |
594 | discard_cleanups (old_chain); | |
595 | } | |
c906108c | 596 | |
f67a969f JB |
597 | static void |
598 | run_command (char *args, int from_tty) | |
599 | { | |
600 | run_command_1 (args, from_tty, 0); | |
601 | } | |
602 | ||
c906108c | 603 | static void |
fba45db2 | 604 | run_no_args_command (char *args, int from_tty) |
c906108c | 605 | { |
3f81c18a | 606 | set_inferior_args (""); |
c906108c | 607 | } |
c906108c | 608 | \f |
c5aa993b | 609 | |
a4d5f2e0 JB |
610 | /* Start the execution of the program up until the beginning of the main |
611 | program. */ | |
612 | ||
613 | static void | |
614 | start_command (char *args, int from_tty) | |
615 | { | |
616 | /* Some languages such as Ada need to search inside the program | |
617 | minimal symbols for the location where to put the temporary | |
618 | breakpoint before starting. */ | |
619 | if (!have_minimal_symbols ()) | |
8a3fe4f8 | 620 | error (_("No symbol table loaded. Use the \"file\" command.")); |
a4d5f2e0 | 621 | |
f67a969f JB |
622 | /* Run the program until reaching the main procedure... */ |
623 | run_command_1 (args, from_tty, 1); | |
a4d5f2e0 JB |
624 | } |
625 | ||
8cae4b3f PA |
626 | static int |
627 | proceed_thread_callback (struct thread_info *thread, void *arg) | |
628 | { | |
74531fed PA |
629 | /* We go through all threads individually instead of compressing |
630 | into a single target `resume_all' request, because some threads | |
631 | may be stopped in internal breakpoints/events, or stopped waiting | |
632 | for its turn in the displaced stepping queue (that is, they are | |
633 | running && !executing). The target side has no idea about why | |
634 | the thread is stopped, so a `resume_all' command would resume too | |
635 | much. If/when GDB gains a way to tell the target `hold this | |
636 | thread stopped until I say otherwise', then we can optimize | |
637 | this. */ | |
4f8d22e3 | 638 | if (!is_stopped (thread->ptid)) |
8cae4b3f PA |
639 | return 0; |
640 | ||
dcf4fbde | 641 | switch_to_thread (thread->ptid); |
8cae4b3f PA |
642 | clear_proceed_status (); |
643 | proceed ((CORE_ADDR) -1, TARGET_SIGNAL_DEFAULT, 0); | |
644 | return 0; | |
645 | } | |
646 | ||
d729566a PA |
647 | void |
648 | ensure_valid_thread (void) | |
649 | { | |
650 | if (ptid_equal (inferior_ptid, null_ptid) | |
651 | || is_exited (inferior_ptid)) | |
3e43a32a | 652 | error (_("Cannot execute this command without a live selected thread.")); |
d729566a PA |
653 | } |
654 | ||
573cda03 | 655 | /* If the user is looking at trace frames, any resumption of execution |
1777feb0 | 656 | is likely to mix up recorded and live target data. So simply |
573cda03 SS |
657 | disallow those commands. */ |
658 | ||
659 | void | |
660 | ensure_not_tfind_mode (void) | |
661 | { | |
662 | if (get_traceframe_number () >= 0) | |
3e43a32a | 663 | error (_("Cannot execute this command while looking at trace frames.")); |
573cda03 SS |
664 | } |
665 | ||
77ebaa5a VP |
666 | void |
667 | continue_1 (int all_threads) | |
668 | { | |
3d488bfc | 669 | ERROR_NO_INFERIOR; |
573cda03 | 670 | ensure_not_tfind_mode (); |
3d488bfc | 671 | |
77ebaa5a VP |
672 | if (non_stop && all_threads) |
673 | { | |
674 | /* Don't error out if the current thread is running, because | |
abbb1732 | 675 | there may be other stopped threads. */ |
77ebaa5a VP |
676 | struct cleanup *old_chain; |
677 | ||
678 | /* Backup current thread and selected frame. */ | |
679 | old_chain = make_cleanup_restore_current_thread (); | |
680 | ||
681 | iterate_over_threads (proceed_thread_callback, NULL); | |
682 | ||
683 | /* Restore selected ptid. */ | |
684 | do_cleanups (old_chain); | |
685 | } | |
686 | else | |
687 | { | |
d729566a | 688 | ensure_valid_thread (); |
77ebaa5a VP |
689 | ensure_not_running (); |
690 | clear_proceed_status (); | |
691 | proceed ((CORE_ADDR) -1, TARGET_SIGNAL_DEFAULT, 0); | |
692 | } | |
693 | } | |
694 | ||
8cae4b3f | 695 | /* continue [-a] [proceed-count] [&] */ |
c906108c | 696 | void |
8cae4b3f | 697 | continue_command (char *args, int from_tty) |
c906108c | 698 | { |
c5aa993b | 699 | int async_exec = 0; |
8cae4b3f | 700 | int all_threads = 0; |
c906108c SS |
701 | ERROR_NO_INFERIOR; |
702 | ||
1777feb0 | 703 | /* Find out whether we must run in the background. */ |
8cae4b3f PA |
704 | if (args != NULL) |
705 | async_exec = strip_bg_char (&args); | |
43ff13b4 JM |
706 | |
707 | /* If we must run in the background, but the target can't do it, | |
1777feb0 | 708 | error out. */ |
362646f5 | 709 | if (async_exec && !target_can_async_p ()) |
8a3fe4f8 | 710 | error (_("Asynchronous execution not supported on this target.")); |
43ff13b4 JM |
711 | |
712 | /* If we are not asked to run in the bg, then prepare to run in the | |
1777feb0 | 713 | foreground, synchronously. */ |
362646f5 | 714 | if (!async_exec && target_can_async_p ()) |
c5aa993b | 715 | { |
1777feb0 | 716 | /* Simulate synchronous execution. */ |
6426a772 | 717 | async_disable_stdin (); |
43ff13b4 | 718 | } |
c906108c | 719 | |
8cae4b3f PA |
720 | if (args != NULL) |
721 | { | |
722 | if (strncmp (args, "-a", sizeof ("-a") - 1) == 0) | |
723 | { | |
724 | all_threads = 1; | |
725 | args += sizeof ("-a") - 1; | |
726 | if (*args == '\0') | |
727 | args = NULL; | |
728 | } | |
729 | } | |
730 | ||
731 | if (!non_stop && all_threads) | |
732 | error (_("`-a' is meaningless in all-stop mode.")); | |
733 | ||
734 | if (args != NULL && all_threads) | |
3e43a32a MS |
735 | error (_("Can't resume all threads and specify " |
736 | "proceed count simultaneously.")); | |
8cae4b3f PA |
737 | |
738 | /* If we have an argument left, set proceed count of breakpoint we | |
739 | stopped at. */ | |
740 | if (args != NULL) | |
c906108c | 741 | { |
347bddb7 | 742 | bpstat bs = NULL; |
8671a17b PA |
743 | int num, stat; |
744 | int stopped = 0; | |
347bddb7 PA |
745 | struct thread_info *tp; |
746 | ||
747 | if (non_stop) | |
e09875d4 | 748 | tp = find_thread_ptid (inferior_ptid); |
347bddb7 PA |
749 | else |
750 | { | |
751 | ptid_t last_ptid; | |
752 | struct target_waitstatus ws; | |
753 | ||
754 | get_last_target_status (&last_ptid, &ws); | |
e09875d4 | 755 | tp = find_thread_ptid (last_ptid); |
347bddb7 PA |
756 | } |
757 | if (tp != NULL) | |
16c381f0 | 758 | bs = tp->control.stop_bpstat; |
8671a17b PA |
759 | |
760 | while ((stat = bpstat_num (&bs, &num)) != 0) | |
761 | if (stat > 0) | |
762 | { | |
763 | set_ignore_count (num, | |
8cae4b3f | 764 | parse_and_eval_long (args) - 1, |
8671a17b PA |
765 | from_tty); |
766 | /* set_ignore_count prints a message ending with a period. | |
767 | So print two spaces before "Continuing.". */ | |
768 | if (from_tty) | |
769 | printf_filtered (" "); | |
770 | stopped = 1; | |
771 | } | |
772 | ||
773 | if (!stopped && from_tty) | |
c906108c SS |
774 | { |
775 | printf_filtered | |
776 | ("Not stopped at any breakpoint; argument ignored.\n"); | |
777 | } | |
c906108c SS |
778 | } |
779 | ||
780 | if (from_tty) | |
a3f17187 | 781 | printf_filtered (_("Continuing.\n")); |
c906108c | 782 | |
77ebaa5a | 783 | continue_1 (all_threads); |
c906108c SS |
784 | } |
785 | \f | |
edb3359d DJ |
786 | /* Record the starting point of a "step" or "next" command. */ |
787 | ||
788 | static void | |
789 | set_step_frame (void) | |
790 | { | |
791 | struct symtab_and_line sal; | |
792 | ||
793 | find_frame_sal (get_current_frame (), &sal); | |
794 | set_step_info (get_current_frame (), sal); | |
795 | } | |
796 | ||
c906108c SS |
797 | /* Step until outside of current statement. */ |
798 | ||
c906108c | 799 | static void |
fba45db2 | 800 | step_command (char *count_string, int from_tty) |
c906108c SS |
801 | { |
802 | step_1 (0, 0, count_string); | |
803 | } | |
804 | ||
805 | /* Likewise, but skip over subroutine calls as if single instructions. */ | |
806 | ||
c906108c | 807 | static void |
fba45db2 | 808 | next_command (char *count_string, int from_tty) |
c906108c SS |
809 | { |
810 | step_1 (1, 0, count_string); | |
811 | } | |
812 | ||
813 | /* Likewise, but step only one instruction. */ | |
814 | ||
c906108c | 815 | void |
fba45db2 | 816 | stepi_command (char *count_string, int from_tty) |
c906108c SS |
817 | { |
818 | step_1 (0, 1, count_string); | |
819 | } | |
820 | ||
c906108c | 821 | void |
fba45db2 | 822 | nexti_command (char *count_string, int from_tty) |
c906108c SS |
823 | { |
824 | step_1 (1, 1, count_string); | |
825 | } | |
826 | ||
186c406b | 827 | void |
611c83ae | 828 | delete_longjmp_breakpoint_cleanup (void *arg) |
74b7792f | 829 | { |
611c83ae PA |
830 | int thread = * (int *) arg; |
831 | delete_longjmp_breakpoint (thread); | |
74b7792f AC |
832 | } |
833 | ||
c906108c | 834 | static void |
fba45db2 | 835 | step_1 (int skip_subroutines, int single_inst, char *count_string) |
c906108c | 836 | { |
52f0bd74 | 837 | int count = 1; |
f107f563 | 838 | struct cleanup *cleanups = make_cleanup (null_cleanup, NULL); |
43ff13b4 | 839 | int async_exec = 0; |
b3dc826b | 840 | int thread = -1; |
c5aa993b | 841 | |
c906108c | 842 | ERROR_NO_INFERIOR; |
573cda03 | 843 | ensure_not_tfind_mode (); |
d729566a | 844 | ensure_valid_thread (); |
94cc34af | 845 | ensure_not_running (); |
43ff13b4 JM |
846 | |
847 | if (count_string) | |
848 | async_exec = strip_bg_char (&count_string); | |
c5aa993b | 849 | |
43ff13b4 | 850 | /* If we get a request for running in the bg but the target |
1777feb0 | 851 | doesn't support it, error out. */ |
362646f5 | 852 | if (async_exec && !target_can_async_p ()) |
8a3fe4f8 | 853 | error (_("Asynchronous execution not supported on this target.")); |
43ff13b4 JM |
854 | |
855 | /* If we don't get a request of running in the bg, then we need | |
1777feb0 | 856 | to simulate synchronous (fg) execution. */ |
362646f5 | 857 | if (!async_exec && target_can_async_p ()) |
43ff13b4 | 858 | { |
1777feb0 | 859 | /* Simulate synchronous execution. */ |
6426a772 | 860 | async_disable_stdin (); |
43ff13b4 JM |
861 | } |
862 | ||
bb518678 | 863 | count = count_string ? parse_and_eval_long (count_string) : 1; |
c906108c | 864 | |
1777feb0 | 865 | if (!single_inst || skip_subroutines) /* Leave si command alone. */ |
c906108c | 866 | { |
186c406b TT |
867 | struct thread_info *tp = inferior_thread (); |
868 | ||
611c83ae | 869 | if (in_thread_list (inferior_ptid)) |
b3dc826b | 870 | thread = pid_to_thread_id (inferior_ptid); |
611c83ae | 871 | |
186c406b | 872 | set_longjmp_breakpoint (tp, get_frame_id (get_current_frame ())); |
611c83ae | 873 | |
b3dc826b | 874 | make_cleanup (delete_longjmp_breakpoint_cleanup, &thread); |
c2d11a7d JM |
875 | } |
876 | ||
37d94800 | 877 | /* In synchronous case, all is well; each step_once call will step once. */ |
362646f5 | 878 | if (!target_can_async_p ()) |
c2d11a7d JM |
879 | { |
880 | for (; count > 0; count--) | |
881 | { | |
37d94800 | 882 | struct thread_info *tp; |
abbb1732 | 883 | |
37d94800 | 884 | step_once (skip_subroutines, single_inst, count, thread); |
c2d11a7d | 885 | |
37d94800 PA |
886 | if (target_has_execution |
887 | && !ptid_equal (inferior_ptid, null_ptid)) | |
888 | tp = inferior_thread (); | |
c2d11a7d | 889 | else |
37d94800 PA |
890 | tp = NULL; |
891 | ||
16c381f0 | 892 | if (!tp || !tp->control.stop_step || !tp->step_multi) |
c2d11a7d | 893 | { |
37d94800 PA |
894 | /* If we stopped for some reason that is not stepping |
895 | there are no further steps to make. */ | |
896 | if (tp) | |
897 | tp->step_multi = 0; | |
898 | break; | |
c2d11a7d | 899 | } |
c2d11a7d JM |
900 | } |
901 | ||
f107f563 | 902 | do_cleanups (cleanups); |
c2d11a7d | 903 | } |
c2d11a7d JM |
904 | else |
905 | { | |
37d94800 PA |
906 | /* In the case of an asynchronous target things get complicated; |
907 | do only one step for now, before returning control to the | |
908 | event loop. Let the continuation figure out how many other | |
909 | steps we need to do, and handle them one at the time, through | |
910 | step_once. */ | |
b3dc826b | 911 | step_once (skip_subroutines, single_inst, count, thread); |
37d94800 | 912 | |
611c83ae | 913 | /* We are running, and the continuation is installed. It will |
f107f563 VP |
914 | disable the longjmp breakpoint as appropriate. */ |
915 | discard_cleanups (cleanups); | |
c906108c | 916 | } |
c2d11a7d | 917 | } |
c906108c | 918 | |
bfec99b2 PA |
919 | struct step_1_continuation_args |
920 | { | |
921 | int count; | |
922 | int skip_subroutines; | |
923 | int single_inst; | |
924 | int thread; | |
925 | }; | |
926 | ||
c2d11a7d JM |
927 | /* Called after we are done with one step operation, to check whether |
928 | we need to step again, before we print the prompt and return control | |
1777feb0 MS |
929 | to the user. If count is > 1, we will need to do one more call to |
930 | proceed(), via step_once(). Basically it is like step_once and | |
931 | step_1_continuation are co-recursive. */ | |
c2d11a7d | 932 | static void |
604ead4a | 933 | step_1_continuation (void *args) |
c2d11a7d | 934 | { |
bfec99b2 | 935 | struct step_1_continuation_args *a = args; |
f13468d9 | 936 | |
af679fd0 | 937 | if (target_has_execution) |
f13468d9 | 938 | { |
af679fd0 PA |
939 | struct thread_info *tp; |
940 | ||
941 | tp = inferior_thread (); | |
16c381f0 | 942 | if (tp->step_multi && tp->control.stop_step) |
af679fd0 PA |
943 | { |
944 | /* There are more steps to make, and we did stop due to | |
945 | ending a stepping range. Do another step. */ | |
37d94800 PA |
946 | step_once (a->skip_subroutines, a->single_inst, |
947 | a->count - 1, a->thread); | |
af679fd0 PA |
948 | return; |
949 | } | |
950 | tp->step_multi = 0; | |
f107f563 | 951 | } |
af679fd0 PA |
952 | |
953 | /* We either stopped for some reason that is not stepping, or there | |
954 | are no further steps to make. Cleanup. */ | |
955 | if (!a->single_inst || a->skip_subroutines) | |
956 | delete_longjmp_breakpoint (a->thread); | |
c2d11a7d JM |
957 | } |
958 | ||
37d94800 PA |
959 | /* Do just one step operation. This is useful to implement the 'step |
960 | n' kind of commands. In case of asynchronous targets, we will have | |
961 | to set up a continuation to be done after the target stops (after | |
962 | this one step). For synch targets, the caller handles further | |
963 | stepping. */ | |
964 | ||
965 | static void | |
611c83ae | 966 | step_once (int skip_subroutines, int single_inst, int count, int thread) |
bfec99b2 | 967 | { |
edb3359d | 968 | struct frame_info *frame = get_current_frame (); |
c2d11a7d JM |
969 | |
970 | if (count > 0) | |
c906108c | 971 | { |
4e1c45ea PA |
972 | /* Don't assume THREAD is a valid thread id. It is set to -1 if |
973 | the longjmp breakpoint was not required. Use the | |
974 | INFERIOR_PTID thread instead, which is the same thread when | |
975 | THREAD is set. */ | |
976 | struct thread_info *tp = inferior_thread (); | |
abbb1732 | 977 | |
c906108c | 978 | clear_proceed_status (); |
edb3359d | 979 | set_step_frame (); |
c906108c | 980 | |
c5aa993b | 981 | if (!single_inst) |
c906108c | 982 | { |
1641cfcc PA |
983 | CORE_ADDR pc; |
984 | ||
edb3359d DJ |
985 | /* Step at an inlined function behaves like "down". */ |
986 | if (!skip_subroutines && !single_inst | |
987 | && inline_skipped_frames (inferior_ptid)) | |
988 | { | |
989 | step_into_inline_frame (inferior_ptid); | |
990 | if (count > 1) | |
991 | step_once (skip_subroutines, single_inst, count - 1, thread); | |
992 | else | |
993 | /* Pretend that we've stopped. */ | |
994 | normal_stop (); | |
995 | return; | |
996 | } | |
997 | ||
1641cfcc PA |
998 | pc = get_frame_pc (frame); |
999 | find_pc_line_pc_range (pc, | |
16c381f0 JK |
1000 | &tp->control.step_range_start, |
1001 | &tp->control.step_range_end); | |
5fbbeb29 CF |
1002 | |
1003 | /* If we have no line info, switch to stepi mode. */ | |
16c381f0 JK |
1004 | if (tp->control.step_range_end == 0 && step_stop_if_no_debug) |
1005 | tp->control.step_range_start = tp->control.step_range_end = 1; | |
1006 | else if (tp->control.step_range_end == 0) | |
c906108c SS |
1007 | { |
1008 | char *name; | |
abbb1732 | 1009 | |
1641cfcc | 1010 | if (find_pc_partial_function (pc, &name, |
16c381f0 JK |
1011 | &tp->control.step_range_start, |
1012 | &tp->control.step_range_end) == 0) | |
8a3fe4f8 | 1013 | error (_("Cannot find bounds of current function")); |
c906108c SS |
1014 | |
1015 | target_terminal_ours (); | |
3e43a32a MS |
1016 | printf_filtered (_("Single stepping until exit from function %s," |
1017 | "\nwhich has no line number information.\n"), | |
1018 | name); | |
c906108c SS |
1019 | } |
1020 | } | |
1021 | else | |
1022 | { | |
1023 | /* Say we are stepping, but stop after one insn whatever it does. */ | |
16c381f0 | 1024 | tp->control.step_range_start = tp->control.step_range_end = 1; |
c906108c SS |
1025 | if (!skip_subroutines) |
1026 | /* It is stepi. | |
1027 | Don't step over function calls, not even to functions lacking | |
1028 | line numbers. */ | |
16c381f0 | 1029 | tp->control.step_over_calls = STEP_OVER_NONE; |
c906108c SS |
1030 | } |
1031 | ||
1032 | if (skip_subroutines) | |
16c381f0 | 1033 | tp->control.step_over_calls = STEP_OVER_ALL; |
c906108c | 1034 | |
95e54da7 | 1035 | tp->step_multi = (count > 1); |
f107f563 | 1036 | proceed ((CORE_ADDR) -1, TARGET_SIGNAL_DEFAULT, 1); |
bfec99b2 | 1037 | |
37d94800 PA |
1038 | /* For async targets, register a continuation to do any |
1039 | additional steps. For sync targets, the caller will handle | |
1040 | further stepping. */ | |
1041 | if (target_can_async_p ()) | |
1042 | { | |
1043 | struct step_1_continuation_args *args; | |
1044 | ||
1045 | args = xmalloc (sizeof (*args)); | |
1046 | args->skip_subroutines = skip_subroutines; | |
1047 | args->single_inst = single_inst; | |
1048 | args->count = count; | |
1049 | args->thread = thread; | |
1050 | ||
1051 | add_intermediate_continuation (tp, step_1_continuation, args, xfree); | |
1052 | } | |
c906108c | 1053 | } |
c906108c | 1054 | } |
c2d11a7d | 1055 | |
c906108c SS |
1056 | \f |
1057 | /* Continue program at specified address. */ | |
1058 | ||
1059 | static void | |
fba45db2 | 1060 | jump_command (char *arg, int from_tty) |
c906108c | 1061 | { |
5af949e3 | 1062 | struct gdbarch *gdbarch = get_current_arch (); |
52f0bd74 | 1063 | CORE_ADDR addr; |
c906108c SS |
1064 | struct symtabs_and_lines sals; |
1065 | struct symtab_and_line sal; | |
1066 | struct symbol *fn; | |
1067 | struct symbol *sfn; | |
43ff13b4 | 1068 | int async_exec = 0; |
c5aa993b | 1069 | |
c906108c | 1070 | ERROR_NO_INFERIOR; |
573cda03 | 1071 | ensure_not_tfind_mode (); |
d729566a | 1072 | ensure_valid_thread (); |
94cc34af | 1073 | ensure_not_running (); |
c906108c | 1074 | |
1777feb0 | 1075 | /* Find out whether we must run in the background. */ |
43ff13b4 JM |
1076 | if (arg != NULL) |
1077 | async_exec = strip_bg_char (&arg); | |
1078 | ||
1079 | /* If we must run in the background, but the target can't do it, | |
1777feb0 | 1080 | error out. */ |
362646f5 | 1081 | if (async_exec && !target_can_async_p ()) |
8a3fe4f8 | 1082 | error (_("Asynchronous execution not supported on this target.")); |
43ff13b4 | 1083 | |
c906108c | 1084 | if (!arg) |
e2e0b3e5 | 1085 | error_no_arg (_("starting address")); |
c906108c SS |
1086 | |
1087 | sals = decode_line_spec_1 (arg, 1); | |
1088 | if (sals.nelts != 1) | |
1089 | { | |
8a3fe4f8 | 1090 | error (_("Unreasonable jump request")); |
c906108c SS |
1091 | } |
1092 | ||
1093 | sal = sals.sals[0]; | |
b8c9b27d | 1094 | xfree (sals.sals); |
c906108c SS |
1095 | |
1096 | if (sal.symtab == 0 && sal.pc == 0) | |
8a3fe4f8 | 1097 | error (_("No source file has been specified.")); |
c906108c | 1098 | |
1777feb0 | 1099 | resolve_sal_pc (&sal); /* May error out. */ |
c906108c | 1100 | |
1777feb0 | 1101 | /* See if we are trying to jump to another function. */ |
c906108c SS |
1102 | fn = get_frame_function (get_current_frame ()); |
1103 | sfn = find_pc_function (sal.pc); | |
1104 | if (fn != NULL && sfn != fn) | |
1105 | { | |
9e2f0ad4 | 1106 | if (!query (_("Line %d is not in `%s'. Jump anyway? "), sal.line, |
de5ad195 | 1107 | SYMBOL_PRINT_NAME (fn))) |
c906108c | 1108 | { |
8a3fe4f8 | 1109 | error (_("Not confirmed.")); |
c906108c SS |
1110 | /* NOTREACHED */ |
1111 | } | |
1112 | } | |
1113 | ||
c5aa993b | 1114 | if (sfn != NULL) |
c906108c SS |
1115 | { |
1116 | fixup_symbol_section (sfn, 0); | |
714835d5 UW |
1117 | if (section_is_overlay (SYMBOL_OBJ_SECTION (sfn)) && |
1118 | !section_is_mapped (SYMBOL_OBJ_SECTION (sfn))) | |
c906108c | 1119 | { |
3e43a32a MS |
1120 | if (!query (_("WARNING!!! Destination is in " |
1121 | "unmapped overlay! Jump anyway? "))) | |
c906108c | 1122 | { |
8a3fe4f8 | 1123 | error (_("Not confirmed.")); |
c906108c SS |
1124 | /* NOTREACHED */ |
1125 | } | |
1126 | } | |
1127 | } | |
1128 | ||
c906108c SS |
1129 | addr = sal.pc; |
1130 | ||
1131 | if (from_tty) | |
1132 | { | |
a3f17187 | 1133 | printf_filtered (_("Continuing at ")); |
5af949e3 | 1134 | fputs_filtered (paddress (gdbarch, addr), gdb_stdout); |
c906108c SS |
1135 | printf_filtered (".\n"); |
1136 | } | |
1137 | ||
89113898 | 1138 | /* If we are not asked to run in the bg, then prepare to run in the |
1777feb0 | 1139 | foreground, synchronously. */ |
89113898 PA |
1140 | if (!async_exec && target_can_async_p ()) |
1141 | { | |
1777feb0 | 1142 | /* Simulate synchronous execution. */ |
89113898 PA |
1143 | async_disable_stdin (); |
1144 | } | |
1145 | ||
c906108c SS |
1146 | clear_proceed_status (); |
1147 | proceed (addr, TARGET_SIGNAL_0, 0); | |
1148 | } | |
c906108c | 1149 | \f |
c5aa993b | 1150 | |
1777feb0 | 1151 | /* Go to line or address in current procedure. */ |
c906108c | 1152 | static void |
fba45db2 | 1153 | go_command (char *line_no, int from_tty) |
c906108c | 1154 | { |
c5aa993b | 1155 | if (line_no == (char *) NULL || !*line_no) |
f42429a6 | 1156 | printf_filtered (_("Usage: go <location>\n")); |
c906108c SS |
1157 | else |
1158 | { | |
b83266a0 SS |
1159 | tbreak_command (line_no, from_tty); |
1160 | jump_command (line_no, from_tty); | |
c906108c SS |
1161 | } |
1162 | } | |
c906108c | 1163 | \f |
c5aa993b | 1164 | |
c906108c SS |
1165 | /* Continue program giving it specified signal. */ |
1166 | ||
1167 | static void | |
fba45db2 | 1168 | signal_command (char *signum_exp, int from_tty) |
c906108c SS |
1169 | { |
1170 | enum target_signal oursig; | |
32c1e744 | 1171 | int async_exec = 0; |
c906108c SS |
1172 | |
1173 | dont_repeat (); /* Too dangerous. */ | |
1174 | ERROR_NO_INFERIOR; | |
573cda03 | 1175 | ensure_not_tfind_mode (); |
d729566a | 1176 | ensure_valid_thread (); |
94cc34af | 1177 | ensure_not_running (); |
c906108c | 1178 | |
32c1e744 VP |
1179 | /* Find out whether we must run in the background. */ |
1180 | if (signum_exp != NULL) | |
1181 | async_exec = strip_bg_char (&signum_exp); | |
1182 | ||
1183 | /* If we must run in the background, but the target can't do it, | |
1184 | error out. */ | |
1185 | if (async_exec && !target_can_async_p ()) | |
1186 | error (_("Asynchronous execution not supported on this target.")); | |
1187 | ||
1188 | /* If we are not asked to run in the bg, then prepare to run in the | |
1189 | foreground, synchronously. */ | |
1190 | if (!async_exec && target_can_async_p ()) | |
1191 | { | |
1192 | /* Simulate synchronous execution. */ | |
1193 | async_disable_stdin (); | |
1194 | } | |
1195 | ||
c906108c | 1196 | if (!signum_exp) |
e2e0b3e5 | 1197 | error_no_arg (_("signal number")); |
c906108c SS |
1198 | |
1199 | /* It would be even slicker to make signal names be valid expressions, | |
1200 | (the type could be "enum $signal" or some such), then the user could | |
1201 | assign them to convenience variables. */ | |
1202 | oursig = target_signal_from_name (signum_exp); | |
1203 | ||
1204 | if (oursig == TARGET_SIGNAL_UNKNOWN) | |
1205 | { | |
1206 | /* No, try numeric. */ | |
bb518678 | 1207 | int num = parse_and_eval_long (signum_exp); |
c906108c SS |
1208 | |
1209 | if (num == 0) | |
1210 | oursig = TARGET_SIGNAL_0; | |
1211 | else | |
1212 | oursig = target_signal_from_command (num); | |
1213 | } | |
1214 | ||
1215 | if (from_tty) | |
1216 | { | |
1217 | if (oursig == TARGET_SIGNAL_0) | |
a3f17187 | 1218 | printf_filtered (_("Continuing with no signal.\n")); |
c906108c | 1219 | else |
a3f17187 | 1220 | printf_filtered (_("Continuing with signal %s.\n"), |
c906108c SS |
1221 | target_signal_to_name (oursig)); |
1222 | } | |
1223 | ||
1224 | clear_proceed_status (); | |
a12cc160 | 1225 | proceed ((CORE_ADDR) -1, oursig, 0); |
c906108c SS |
1226 | } |
1227 | ||
186c406b TT |
1228 | /* A continuation callback for until_next_command. */ |
1229 | ||
1230 | static void | |
1231 | until_next_continuation (void *arg) | |
1232 | { | |
1233 | struct thread_info *tp = arg; | |
1234 | ||
1235 | delete_longjmp_breakpoint (tp->num); | |
1236 | } | |
1237 | ||
c906108c SS |
1238 | /* Proceed until we reach a different source line with pc greater than |
1239 | our current one or exit the function. We skip calls in both cases. | |
1240 | ||
1241 | Note that eventually this command should probably be changed so | |
1242 | that only source lines are printed out when we hit the breakpoint | |
1243 | we set. This may involve changes to wait_for_inferior and the | |
1244 | proceed status code. */ | |
1245 | ||
c906108c | 1246 | static void |
fba45db2 | 1247 | until_next_command (int from_tty) |
c906108c SS |
1248 | { |
1249 | struct frame_info *frame; | |
1250 | CORE_ADDR pc; | |
1251 | struct symbol *func; | |
1252 | struct symtab_and_line sal; | |
4e1c45ea | 1253 | struct thread_info *tp = inferior_thread (); |
186c406b TT |
1254 | int thread = tp->num; |
1255 | struct cleanup *old_chain; | |
c5aa993b | 1256 | |
c906108c | 1257 | clear_proceed_status (); |
edb3359d | 1258 | set_step_frame (); |
c906108c SS |
1259 | |
1260 | frame = get_current_frame (); | |
1261 | ||
1262 | /* Step until either exited from this function or greater | |
1263 | than the current line (if in symbolic section) or pc (if | |
1777feb0 | 1264 | not). */ |
c906108c | 1265 | |
1c7819ef | 1266 | pc = get_frame_pc (frame); |
c906108c | 1267 | func = find_pc_function (pc); |
c5aa993b | 1268 | |
c906108c SS |
1269 | if (!func) |
1270 | { | |
1271 | struct minimal_symbol *msymbol = lookup_minimal_symbol_by_pc (pc); | |
c5aa993b | 1272 | |
c906108c | 1273 | if (msymbol == NULL) |
8a3fe4f8 | 1274 | error (_("Execution is not within a known function.")); |
c5aa993b | 1275 | |
16c381f0 JK |
1276 | tp->control.step_range_start = SYMBOL_VALUE_ADDRESS (msymbol); |
1277 | tp->control.step_range_end = pc; | |
c906108c SS |
1278 | } |
1279 | else | |
1280 | { | |
1281 | sal = find_pc_line (pc, 0); | |
c5aa993b | 1282 | |
16c381f0 JK |
1283 | tp->control.step_range_start = BLOCK_START (SYMBOL_BLOCK_VALUE (func)); |
1284 | tp->control.step_range_end = sal.end; | |
c906108c | 1285 | } |
c5aa993b | 1286 | |
16c381f0 | 1287 | tp->control.step_over_calls = STEP_OVER_ALL; |
c906108c | 1288 | |
af679fd0 | 1289 | tp->step_multi = 0; /* Only one call to proceed */ |
c5aa993b | 1290 | |
186c406b TT |
1291 | set_longjmp_breakpoint (tp, get_frame_id (frame)); |
1292 | old_chain = make_cleanup (delete_longjmp_breakpoint_cleanup, &thread); | |
1293 | ||
2acceee2 | 1294 | proceed ((CORE_ADDR) -1, TARGET_SIGNAL_DEFAULT, 1); |
186c406b TT |
1295 | |
1296 | if (target_can_async_p () && is_running (inferior_ptid)) | |
1297 | { | |
1298 | discard_cleanups (old_chain); | |
1299 | add_continuation (tp, until_next_continuation, tp, NULL); | |
1300 | } | |
1301 | else | |
1302 | do_cleanups (old_chain); | |
c906108c SS |
1303 | } |
1304 | ||
c5aa993b | 1305 | static void |
fba45db2 | 1306 | until_command (char *arg, int from_tty) |
c906108c | 1307 | { |
43ff13b4 JM |
1308 | int async_exec = 0; |
1309 | ||
4247603b | 1310 | ERROR_NO_INFERIOR; |
573cda03 | 1311 | ensure_not_tfind_mode (); |
4247603b PA |
1312 | ensure_valid_thread (); |
1313 | ensure_not_running (); | |
573cda03 | 1314 | |
1777feb0 | 1315 | /* Find out whether we must run in the background. */ |
43ff13b4 JM |
1316 | if (arg != NULL) |
1317 | async_exec = strip_bg_char (&arg); | |
1318 | ||
1319 | /* If we must run in the background, but the target can't do it, | |
1777feb0 | 1320 | error out. */ |
362646f5 | 1321 | if (async_exec && !target_can_async_p ()) |
8a3fe4f8 | 1322 | error (_("Asynchronous execution not supported on this target.")); |
43ff13b4 JM |
1323 | |
1324 | /* If we are not asked to run in the bg, then prepare to run in the | |
1777feb0 | 1325 | foreground, synchronously. */ |
362646f5 | 1326 | if (!async_exec && target_can_async_p ()) |
c5aa993b | 1327 | { |
1777feb0 | 1328 | /* Simulate synchronous execution. */ |
6426a772 | 1329 | async_disable_stdin (); |
43ff13b4 JM |
1330 | } |
1331 | ||
c906108c | 1332 | if (arg) |
ae66c1fc | 1333 | until_break_command (arg, from_tty, 0); |
c906108c SS |
1334 | else |
1335 | until_next_command (from_tty); | |
1336 | } | |
ae66c1fc EZ |
1337 | |
1338 | static void | |
1339 | advance_command (char *arg, int from_tty) | |
1340 | { | |
1341 | int async_exec = 0; | |
1342 | ||
4247603b | 1343 | ERROR_NO_INFERIOR; |
573cda03 | 1344 | ensure_not_tfind_mode (); |
4247603b PA |
1345 | ensure_valid_thread (); |
1346 | ensure_not_running (); | |
573cda03 | 1347 | |
ae66c1fc | 1348 | if (arg == NULL) |
e2e0b3e5 | 1349 | error_no_arg (_("a location")); |
ae66c1fc EZ |
1350 | |
1351 | /* Find out whether we must run in the background. */ | |
1352 | if (arg != NULL) | |
1353 | async_exec = strip_bg_char (&arg); | |
1354 | ||
1355 | /* If we must run in the background, but the target can't do it, | |
1356 | error out. */ | |
362646f5 | 1357 | if (async_exec && !target_can_async_p ()) |
8a3fe4f8 | 1358 | error (_("Asynchronous execution not supported on this target.")); |
ae66c1fc EZ |
1359 | |
1360 | /* If we are not asked to run in the bg, then prepare to run in the | |
1361 | foreground, synchronously. */ | |
362646f5 | 1362 | if (!async_exec && target_can_async_p ()) |
ae66c1fc EZ |
1363 | { |
1364 | /* Simulate synchronous execution. */ | |
1365 | async_disable_stdin (); | |
1366 | } | |
1367 | ||
1368 | until_break_command (arg, from_tty, 1); | |
1369 | } | |
c906108c | 1370 | \f |
f941662f MK |
1371 | /* Print the result of a function at the end of a 'finish' command. */ |
1372 | ||
11cf8741 | 1373 | static void |
c055b101 | 1374 | print_return_value (struct type *func_type, struct type *value_type) |
11cf8741 | 1375 | { |
d80b854b | 1376 | struct gdbarch *gdbarch = get_regcache_arch (stop_registers); |
bb472c1e MK |
1377 | struct cleanup *old_chain; |
1378 | struct ui_stream *stb; | |
44e5158b AC |
1379 | struct value *value; |
1380 | ||
181fc57c | 1381 | CHECK_TYPEDEF (value_type); |
44e5158b | 1382 | gdb_assert (TYPE_CODE (value_type) != TYPE_CODE_VOID); |
11cf8741 | 1383 | |
92ad9cd9 AC |
1384 | /* FIXME: 2003-09-27: When returning from a nested inferior function |
1385 | call, it's possible (with no help from the architecture vector) | |
1386 | to locate and return/print a "struct return" value. This is just | |
1387 | a more complicated case of what is already being done in in the | |
1388 | inferior function call code. In fact, when inferior function | |
1389 | calls are made async, this will likely be made the norm. */ | |
31db7b6c | 1390 | |
c055b101 CV |
1391 | switch (gdbarch_return_value (gdbarch, func_type, value_type, |
1392 | NULL, NULL, NULL)) | |
44e5158b | 1393 | { |
750eb019 AC |
1394 | case RETURN_VALUE_REGISTER_CONVENTION: |
1395 | case RETURN_VALUE_ABI_RETURNS_ADDRESS: | |
181fc57c | 1396 | case RETURN_VALUE_ABI_PRESERVES_ADDRESS: |
44e5158b | 1397 | value = allocate_value (value_type); |
c055b101 | 1398 | gdbarch_return_value (gdbarch, func_type, value_type, stop_registers, |
990a07ab | 1399 | value_contents_raw (value), NULL); |
750eb019 AC |
1400 | break; |
1401 | case RETURN_VALUE_STRUCT_CONVENTION: | |
1402 | value = NULL; | |
1403 | break; | |
1404 | default: | |
e2e0b3e5 | 1405 | internal_error (__FILE__, __LINE__, _("bad switch")); |
44e5158b | 1406 | } |
bb472c1e | 1407 | |
31db7b6c MK |
1408 | if (value) |
1409 | { | |
79a45b7d TT |
1410 | struct value_print_options opts; |
1411 | ||
31db7b6c | 1412 | /* Print it. */ |
1d751abe PA |
1413 | stb = ui_out_stream_new (uiout); |
1414 | old_chain = make_cleanup_ui_out_stream_delete (stb); | |
31db7b6c MK |
1415 | ui_out_text (uiout, "Value returned is "); |
1416 | ui_out_field_fmt (uiout, "gdb-result-var", "$%d", | |
1417 | record_latest_value (value)); | |
1418 | ui_out_text (uiout, " = "); | |
79a45b7d TT |
1419 | get_raw_print_options (&opts); |
1420 | value_print (value, stb->stream, &opts); | |
31db7b6c MK |
1421 | ui_out_field_stream (uiout, "return-value", stb); |
1422 | ui_out_text (uiout, "\n"); | |
1d751abe | 1423 | do_cleanups (old_chain); |
31db7b6c MK |
1424 | } |
1425 | else | |
1426 | { | |
1427 | ui_out_text (uiout, "Value returned has type: "); | |
1d751abe PA |
1428 | ui_out_field_string (uiout, "return-type", TYPE_NAME (value_type)); |
1429 | ui_out_text (uiout, "."); | |
1430 | ui_out_text (uiout, " Cannot determine contents\n"); | |
31db7b6c | 1431 | } |
11cf8741 JM |
1432 | } |
1433 | ||
43ff13b4 | 1434 | /* Stuff that needs to be done by the finish command after the target |
f941662f MK |
1435 | has stopped. In asynchronous mode, we wait for the target to stop |
1436 | in the call to poll or select in the event loop, so it is | |
1437 | impossible to do all the stuff as part of the finish_command | |
1438 | function itself. The only chance we have to complete this command | |
1439 | is in fetch_inferior_event, which is called by the event loop as | |
1777feb0 | 1440 | soon as it detects that the target has stopped. This function is |
f941662f MK |
1441 | called via the cmd_continuation pointer. */ |
1442 | ||
bfec99b2 | 1443 | struct finish_command_continuation_args |
43ff13b4 | 1444 | { |
43ff13b4 | 1445 | struct breakpoint *breakpoint; |
bfec99b2 PA |
1446 | struct symbol *function; |
1447 | }; | |
c5aa993b | 1448 | |
bfec99b2 | 1449 | static void |
604ead4a | 1450 | finish_command_continuation (void *arg) |
bfec99b2 PA |
1451 | { |
1452 | struct finish_command_continuation_args *a = arg; | |
41d2bdb4 | 1453 | struct thread_info *tp = NULL; |
347bddb7 PA |
1454 | bpstat bs = NULL; |
1455 | ||
1456 | if (!ptid_equal (inferior_ptid, null_ptid) | |
1457 | && target_has_execution | |
1458 | && is_stopped (inferior_ptid)) | |
41d2bdb4 PA |
1459 | { |
1460 | tp = inferior_thread (); | |
16c381f0 | 1461 | bs = tp->control.stop_bpstat; |
41d2bdb4 | 1462 | } |
347bddb7 PA |
1463 | |
1464 | if (bpstat_find_breakpoint (bs, a->breakpoint) != NULL | |
604ead4a | 1465 | && a->function != NULL) |
43ff13b4 | 1466 | { |
604ead4a | 1467 | struct type *value_type; |
bfec99b2 | 1468 | |
604ead4a PA |
1469 | value_type = TYPE_TARGET_TYPE (SYMBOL_TYPE (a->function)); |
1470 | if (!value_type) | |
1471 | internal_error (__FILE__, __LINE__, | |
1472 | _("finish_command: function has no target type")); | |
f5871ec0 | 1473 | |
604ead4a | 1474 | if (TYPE_CODE (value_type) != TYPE_CODE_VOID) |
40c549d6 TT |
1475 | { |
1476 | volatile struct gdb_exception ex; | |
1477 | ||
1478 | TRY_CATCH (ex, RETURN_MASK_ALL) | |
1479 | { | |
1480 | /* print_return_value can throw an exception in some | |
1481 | circumstances. We need to catch this so that we still | |
1482 | delete the breakpoint. */ | |
1483 | print_return_value (SYMBOL_TYPE (a->function), value_type); | |
1484 | } | |
1485 | if (ex.reason < 0) | |
1486 | exception_print (gdb_stdout, ex); | |
1487 | } | |
43ff13b4 | 1488 | } |
f941662f | 1489 | |
604ead4a | 1490 | /* We suppress normal call of normal_stop observer and do it here so |
41d2bdb4 | 1491 | that the *stopped notification includes the return value. */ |
16c381f0 | 1492 | if (bs != NULL && tp->control.proceed_to_finish) |
41d2bdb4 | 1493 | observer_notify_normal_stop (bs, 1 /* print frame */); |
bfec99b2 | 1494 | delete_breakpoint (a->breakpoint); |
186c406b | 1495 | delete_longjmp_breakpoint (inferior_thread ()->num); |
43ff13b4 JM |
1496 | } |
1497 | ||
604ead4a PA |
1498 | static void |
1499 | finish_command_continuation_free_arg (void *arg) | |
1500 | { | |
604ead4a PA |
1501 | xfree (arg); |
1502 | } | |
1503 | ||
b2175913 MS |
1504 | /* finish_backward -- helper function for finish_command. */ |
1505 | ||
1506 | static void | |
1507 | finish_backward (struct symbol *function) | |
1508 | { | |
1509 | struct symtab_and_line sal; | |
1510 | struct thread_info *tp = inferior_thread (); | |
1511 | struct breakpoint *breakpoint; | |
1512 | struct cleanup *old_chain; | |
1c7819ef | 1513 | CORE_ADDR pc; |
b2175913 MS |
1514 | CORE_ADDR func_addr; |
1515 | int back_up; | |
1516 | ||
1c7819ef PA |
1517 | pc = get_frame_pc (get_current_frame ()); |
1518 | ||
1519 | if (find_pc_partial_function (pc, NULL, &func_addr, NULL) == 0) | |
b2175913 MS |
1520 | internal_error (__FILE__, __LINE__, |
1521 | _("Finish: couldn't find function.")); | |
1522 | ||
1523 | sal = find_pc_line (func_addr, 0); | |
1524 | ||
1525 | /* We don't need a return value. */ | |
16c381f0 | 1526 | tp->control.proceed_to_finish = 0; |
b2175913 MS |
1527 | /* Special case: if we're sitting at the function entry point, |
1528 | then all we need to do is take a reverse singlestep. We | |
1529 | don't need to set a breakpoint, and indeed it would do us | |
1530 | no good to do so. | |
1531 | ||
1532 | Note that this can only happen at frame #0, since there's | |
1533 | no way that a function up the stack can have a return address | |
1534 | that's equal to its entry point. */ | |
1535 | ||
1c7819ef | 1536 | if (sal.pc != pc) |
b2175913 | 1537 | { |
a6d9a66e UW |
1538 | struct frame_info *frame = get_selected_frame (NULL); |
1539 | struct gdbarch *gdbarch = get_frame_arch (frame); | |
1540 | ||
b2175913 MS |
1541 | /* Set breakpoint and continue. */ |
1542 | breakpoint = | |
a6d9a66e UW |
1543 | set_momentary_breakpoint (gdbarch, sal, |
1544 | get_stack_frame_id (frame), | |
b2175913 MS |
1545 | bp_breakpoint); |
1546 | /* Tell the breakpoint to keep quiet. We won't be done | |
1547 | until we've done another reverse single-step. */ | |
1548 | make_breakpoint_silent (breakpoint); | |
1549 | old_chain = make_cleanup_delete_breakpoint (breakpoint); | |
1550 | proceed ((CORE_ADDR) -1, TARGET_SIGNAL_DEFAULT, 0); | |
1551 | /* We will be stopped when proceed returns. */ | |
16c381f0 JK |
1552 | back_up = (bpstat_find_breakpoint (tp->control.stop_bpstat, breakpoint) |
1553 | != NULL); | |
b2175913 MS |
1554 | do_cleanups (old_chain); |
1555 | } | |
1556 | else | |
1557 | back_up = 1; | |
1558 | if (back_up) | |
1559 | { | |
1560 | /* If in fact we hit the step-resume breakpoint (and not | |
1561 | some other breakpoint), then we're almost there -- | |
1562 | we just need to back up by one more single-step. */ | |
16c381f0 | 1563 | tp->control.step_range_start = tp->control.step_range_end = 1; |
b2175913 MS |
1564 | proceed ((CORE_ADDR) -1, TARGET_SIGNAL_DEFAULT, 1); |
1565 | } | |
1566 | return; | |
1567 | } | |
1568 | ||
1569 | /* finish_forward -- helper function for finish_command. */ | |
1570 | ||
1571 | static void | |
1572 | finish_forward (struct symbol *function, struct frame_info *frame) | |
1573 | { | |
a6d9a66e | 1574 | struct gdbarch *gdbarch = get_frame_arch (frame); |
b2175913 MS |
1575 | struct symtab_and_line sal; |
1576 | struct thread_info *tp = inferior_thread (); | |
1577 | struct breakpoint *breakpoint; | |
1578 | struct cleanup *old_chain; | |
1579 | struct finish_command_continuation_args *cargs; | |
186c406b | 1580 | int thread = tp->num; |
b2175913 MS |
1581 | |
1582 | sal = find_pc_line (get_frame_pc (frame), 0); | |
1583 | sal.pc = get_frame_pc (frame); | |
1584 | ||
a6d9a66e UW |
1585 | breakpoint = set_momentary_breakpoint (gdbarch, sal, |
1586 | get_stack_frame_id (frame), | |
b2175913 MS |
1587 | bp_finish); |
1588 | ||
1589 | old_chain = make_cleanup_delete_breakpoint (breakpoint); | |
1590 | ||
186c406b TT |
1591 | set_longjmp_breakpoint (tp, get_frame_id (frame)); |
1592 | make_cleanup (delete_longjmp_breakpoint_cleanup, &thread); | |
1593 | ||
16c381f0 JK |
1594 | /* We want stop_registers, please... */ |
1595 | tp->control.proceed_to_finish = 1; | |
b2175913 MS |
1596 | cargs = xmalloc (sizeof (*cargs)); |
1597 | ||
1598 | cargs->breakpoint = breakpoint; | |
1599 | cargs->function = function; | |
1600 | add_continuation (tp, finish_command_continuation, cargs, | |
1601 | finish_command_continuation_free_arg); | |
6c95b8df | 1602 | proceed ((CORE_ADDR) -1, TARGET_SIGNAL_DEFAULT, 0); |
b2175913 MS |
1603 | |
1604 | discard_cleanups (old_chain); | |
1605 | if (!target_can_async_p ()) | |
1606 | do_all_continuations (); | |
1607 | } | |
1608 | ||
f941662f MK |
1609 | /* "finish": Set a temporary breakpoint at the place the selected |
1610 | frame will return to, then continue. */ | |
c906108c SS |
1611 | |
1612 | static void | |
fba45db2 | 1613 | finish_command (char *arg, int from_tty) |
c906108c | 1614 | { |
52f0bd74 AC |
1615 | struct frame_info *frame; |
1616 | struct symbol *function; | |
43ff13b4 JM |
1617 | |
1618 | int async_exec = 0; | |
1619 | ||
4247603b | 1620 | ERROR_NO_INFERIOR; |
573cda03 | 1621 | ensure_not_tfind_mode (); |
4247603b PA |
1622 | ensure_valid_thread (); |
1623 | ensure_not_running (); | |
573cda03 | 1624 | |
f941662f | 1625 | /* Find out whether we must run in the background. */ |
43ff13b4 JM |
1626 | if (arg != NULL) |
1627 | async_exec = strip_bg_char (&arg); | |
1628 | ||
1629 | /* If we must run in the background, but the target can't do it, | |
f941662f | 1630 | error out. */ |
362646f5 | 1631 | if (async_exec && !target_can_async_p ()) |
8a3fe4f8 | 1632 | error (_("Asynchronous execution not supported on this target.")); |
43ff13b4 | 1633 | |
b2175913 MS |
1634 | /* Don't try to async in reverse. */ |
1635 | if (async_exec && execution_direction == EXEC_REVERSE) | |
1636 | error (_("Asynchronous 'finish' not supported in reverse.")); | |
1637 | ||
43ff13b4 | 1638 | /* If we are not asked to run in the bg, then prepare to run in the |
f941662f | 1639 | foreground, synchronously. */ |
362646f5 | 1640 | if (!async_exec && target_can_async_p ()) |
c5aa993b | 1641 | { |
f941662f | 1642 | /* Simulate synchronous execution. */ |
6426a772 | 1643 | async_disable_stdin (); |
43ff13b4 | 1644 | } |
c906108c SS |
1645 | |
1646 | if (arg) | |
8a3fe4f8 | 1647 | error (_("The \"finish\" command does not take any arguments.")); |
c906108c | 1648 | |
206415a3 | 1649 | frame = get_prev_frame (get_selected_frame (_("No selected frame."))); |
c906108c | 1650 | if (frame == 0) |
8a3fe4f8 | 1651 | error (_("\"finish\" not meaningful in the outermost frame.")); |
c906108c SS |
1652 | |
1653 | clear_proceed_status (); | |
1654 | ||
edb3359d DJ |
1655 | /* Finishing from an inline frame is completely different. We don't |
1656 | try to show the "return value" - no way to locate it. So we do | |
1657 | not need a completion. */ | |
1658 | if (get_frame_type (get_selected_frame (_("No selected frame."))) | |
1659 | == INLINE_FRAME) | |
1660 | { | |
1661 | /* Claim we are stepping in the calling frame. An empty step | |
1662 | range means that we will stop once we aren't in a function | |
1663 | called by that frame. We don't use the magic "1" value for | |
1664 | step_range_end, because then infrun will think this is nexti, | |
1665 | and not step over the rest of this inlined function call. */ | |
1666 | struct thread_info *tp = inferior_thread (); | |
1667 | struct symtab_and_line empty_sal; | |
abbb1732 | 1668 | |
edb3359d DJ |
1669 | init_sal (&empty_sal); |
1670 | set_step_info (frame, empty_sal); | |
16c381f0 JK |
1671 | tp->control.step_range_start = get_frame_pc (frame); |
1672 | tp->control.step_range_end = tp->control.step_range_start; | |
1673 | tp->control.step_over_calls = STEP_OVER_ALL; | |
edb3359d DJ |
1674 | |
1675 | /* Print info on the selected frame, including level number but not | |
1676 | source. */ | |
1677 | if (from_tty) | |
1678 | { | |
1679 | printf_filtered (_("Run till exit from ")); | |
1680 | print_stack_frame (get_selected_frame (NULL), 1, LOCATION); | |
1681 | } | |
1682 | ||
1683 | proceed ((CORE_ADDR) -1, TARGET_SIGNAL_DEFAULT, 1); | |
1684 | return; | |
1685 | } | |
1686 | ||
c906108c SS |
1687 | /* Find the function we will return from. */ |
1688 | ||
206415a3 | 1689 | function = find_pc_function (get_frame_pc (get_selected_frame (NULL))); |
c906108c | 1690 | |
f941662f MK |
1691 | /* Print info on the selected frame, including level number but not |
1692 | source. */ | |
c906108c SS |
1693 | if (from_tty) |
1694 | { | |
b2175913 MS |
1695 | if (execution_direction == EXEC_REVERSE) |
1696 | printf_filtered (_("Run back to call of ")); | |
1697 | else | |
1698 | printf_filtered (_("Run till exit from ")); | |
1699 | ||
b04f3ab4 | 1700 | print_stack_frame (get_selected_frame (NULL), 1, LOCATION); |
c906108c SS |
1701 | } |
1702 | ||
b2175913 MS |
1703 | if (execution_direction == EXEC_REVERSE) |
1704 | finish_backward (function); | |
1705 | else | |
1706 | finish_forward (function, frame); | |
c906108c SS |
1707 | } |
1708 | \f | |
f941662f | 1709 | |
c906108c | 1710 | static void |
fba45db2 | 1711 | program_info (char *args, int from_tty) |
c906108c | 1712 | { |
347bddb7 PA |
1713 | bpstat bs; |
1714 | int num, stat; | |
1715 | struct thread_info *tp; | |
1716 | ptid_t ptid; | |
c5aa993b | 1717 | |
c906108c SS |
1718 | if (!target_has_execution) |
1719 | { | |
a3f17187 | 1720 | printf_filtered (_("The program being debugged is not being run.\n")); |
c906108c SS |
1721 | return; |
1722 | } | |
1723 | ||
347bddb7 PA |
1724 | if (non_stop) |
1725 | ptid = inferior_ptid; | |
1726 | else | |
1727 | { | |
1728 | struct target_waitstatus ws; | |
abbb1732 | 1729 | |
347bddb7 PA |
1730 | get_last_target_status (&ptid, &ws); |
1731 | } | |
1732 | ||
1733 | if (ptid_equal (ptid, null_ptid) || is_exited (ptid)) | |
1734 | error (_("Invalid selected thread.")); | |
1735 | else if (is_running (ptid)) | |
1736 | error (_("Selected thread is running.")); | |
1737 | ||
e09875d4 | 1738 | tp = find_thread_ptid (ptid); |
16c381f0 | 1739 | bs = tp->control.stop_bpstat; |
347bddb7 PA |
1740 | stat = bpstat_num (&bs, &num); |
1741 | ||
c906108c | 1742 | target_files_info (); |
5af949e3 UW |
1743 | printf_filtered (_("Program stopped at %s.\n"), |
1744 | paddress (target_gdbarch, stop_pc)); | |
16c381f0 | 1745 | if (tp->control.stop_step) |
a3f17187 | 1746 | printf_filtered (_("It stopped after being stepped.\n")); |
8671a17b | 1747 | else if (stat != 0) |
c906108c SS |
1748 | { |
1749 | /* There may be several breakpoints in the same place, so this | |
c5aa993b | 1750 | isn't as strange as it seems. */ |
8671a17b | 1751 | while (stat != 0) |
c906108c | 1752 | { |
8671a17b | 1753 | if (stat < 0) |
c906108c | 1754 | { |
3e43a32a MS |
1755 | printf_filtered (_("It stopped at a breakpoint " |
1756 | "that has since been deleted.\n")); | |
c906108c SS |
1757 | } |
1758 | else | |
a3f17187 | 1759 | printf_filtered (_("It stopped at breakpoint %d.\n"), num); |
8671a17b | 1760 | stat = bpstat_num (&bs, &num); |
c906108c SS |
1761 | } |
1762 | } | |
16c381f0 | 1763 | else if (tp->suspend.stop_signal != TARGET_SIGNAL_0) |
c906108c | 1764 | { |
a3f17187 | 1765 | printf_filtered (_("It stopped with signal %s, %s.\n"), |
16c381f0 JK |
1766 | target_signal_to_name (tp->suspend.stop_signal), |
1767 | target_signal_to_string (tp->suspend.stop_signal)); | |
c906108c SS |
1768 | } |
1769 | ||
1770 | if (!from_tty) | |
1771 | { | |
3e43a32a MS |
1772 | printf_filtered (_("Type \"info stack\" or \"info " |
1773 | "registers\" for more information.\n")); | |
c906108c SS |
1774 | } |
1775 | } | |
1776 | \f | |
1777 | static void | |
fba45db2 | 1778 | environment_info (char *var, int from_tty) |
c906108c SS |
1779 | { |
1780 | if (var) | |
1781 | { | |
3f81c18a | 1782 | char *val = get_in_environ (current_inferior ()->environment, var); |
abbb1732 | 1783 | |
c906108c SS |
1784 | if (val) |
1785 | { | |
1786 | puts_filtered (var); | |
1787 | puts_filtered (" = "); | |
1788 | puts_filtered (val); | |
1789 | puts_filtered ("\n"); | |
1790 | } | |
1791 | else | |
1792 | { | |
1793 | puts_filtered ("Environment variable \""); | |
1794 | puts_filtered (var); | |
1795 | puts_filtered ("\" not defined.\n"); | |
1796 | } | |
1797 | } | |
1798 | else | |
1799 | { | |
3f81c18a | 1800 | char **vector = environ_vector (current_inferior ()->environment); |
abbb1732 | 1801 | |
c906108c SS |
1802 | while (*vector) |
1803 | { | |
1804 | puts_filtered (*vector++); | |
1805 | puts_filtered ("\n"); | |
1806 | } | |
1807 | } | |
1808 | } | |
1809 | ||
1810 | static void | |
fba45db2 | 1811 | set_environment_command (char *arg, int from_tty) |
c906108c | 1812 | { |
52f0bd74 | 1813 | char *p, *val, *var; |
c906108c SS |
1814 | int nullset = 0; |
1815 | ||
1816 | if (arg == 0) | |
e2e0b3e5 | 1817 | error_no_arg (_("environment variable and value")); |
c906108c | 1818 | |
1777feb0 | 1819 | /* Find seperation between variable name and value. */ |
c906108c SS |
1820 | p = (char *) strchr (arg, '='); |
1821 | val = (char *) strchr (arg, ' '); | |
1822 | ||
1823 | if (p != 0 && val != 0) | |
1824 | { | |
1825 | /* We have both a space and an equals. If the space is before the | |
c5aa993b | 1826 | equals, walk forward over the spaces til we see a nonspace |
1777feb0 | 1827 | (possibly the equals). */ |
c906108c SS |
1828 | if (p > val) |
1829 | while (*val == ' ') | |
1830 | val++; | |
1831 | ||
1832 | /* Now if the = is after the char following the spaces, | |
c5aa993b | 1833 | take the char following the spaces. */ |
c906108c SS |
1834 | if (p > val) |
1835 | p = val - 1; | |
1836 | } | |
1837 | else if (val != 0 && p == 0) | |
1838 | p = val; | |
1839 | ||
1840 | if (p == arg) | |
e2e0b3e5 | 1841 | error_no_arg (_("environment variable to set")); |
c906108c SS |
1842 | |
1843 | if (p == 0 || p[1] == 0) | |
1844 | { | |
1845 | nullset = 1; | |
1846 | if (p == 0) | |
1777feb0 | 1847 | p = arg + strlen (arg); /* So that savestring below will work. */ |
c906108c SS |
1848 | } |
1849 | else | |
1850 | { | |
1777feb0 | 1851 | /* Not setting variable value to null. */ |
c906108c SS |
1852 | val = p + 1; |
1853 | while (*val == ' ' || *val == '\t') | |
1854 | val++; | |
1855 | } | |
1856 | ||
c5aa993b JM |
1857 | while (p != arg && (p[-1] == ' ' || p[-1] == '\t')) |
1858 | p--; | |
c906108c SS |
1859 | |
1860 | var = savestring (arg, p - arg); | |
1861 | if (nullset) | |
1862 | { | |
3e43a32a MS |
1863 | printf_filtered (_("Setting environment variable " |
1864 | "\"%s\" to null value.\n"), | |
a3f17187 | 1865 | var); |
3f81c18a | 1866 | set_in_environ (current_inferior ()->environment, var, ""); |
c906108c SS |
1867 | } |
1868 | else | |
3f81c18a | 1869 | set_in_environ (current_inferior ()->environment, var, val); |
b8c9b27d | 1870 | xfree (var); |
c906108c SS |
1871 | } |
1872 | ||
1873 | static void | |
fba45db2 | 1874 | unset_environment_command (char *var, int from_tty) |
c906108c SS |
1875 | { |
1876 | if (var == 0) | |
1877 | { | |
1878 | /* If there is no argument, delete all environment variables. | |
c5aa993b | 1879 | Ask for confirmation if reading from the terminal. */ |
e2e0b3e5 | 1880 | if (!from_tty || query (_("Delete all environment variables? "))) |
c906108c | 1881 | { |
3f81c18a VP |
1882 | free_environ (current_inferior ()->environment); |
1883 | current_inferior ()->environment = make_environ (); | |
c906108c SS |
1884 | } |
1885 | } | |
1886 | else | |
3f81c18a | 1887 | unset_in_environ (current_inferior ()->environment, var); |
c906108c SS |
1888 | } |
1889 | ||
1777feb0 | 1890 | /* Handle the execution path (PATH variable). */ |
c906108c SS |
1891 | |
1892 | static const char path_var_name[] = "PATH"; | |
1893 | ||
c906108c | 1894 | static void |
fba45db2 | 1895 | path_info (char *args, int from_tty) |
c906108c SS |
1896 | { |
1897 | puts_filtered ("Executable and object file path: "); | |
3e43a32a MS |
1898 | puts_filtered (get_in_environ (current_inferior ()->environment, |
1899 | path_var_name)); | |
c906108c SS |
1900 | puts_filtered ("\n"); |
1901 | } | |
1902 | ||
1903 | /* Add zero or more directories to the front of the execution path. */ | |
1904 | ||
1905 | static void | |
fba45db2 | 1906 | path_command (char *dirname, int from_tty) |
c906108c SS |
1907 | { |
1908 | char *exec_path; | |
1909 | char *env; | |
abbb1732 | 1910 | |
c906108c | 1911 | dont_repeat (); |
3f81c18a | 1912 | env = get_in_environ (current_inferior ()->environment, path_var_name); |
1777feb0 | 1913 | /* Can be null if path is not set. */ |
c906108c SS |
1914 | if (!env) |
1915 | env = ""; | |
4fcf66da | 1916 | exec_path = xstrdup (env); |
c906108c | 1917 | mod_path (dirname, &exec_path); |
3f81c18a | 1918 | set_in_environ (current_inferior ()->environment, path_var_name, exec_path); |
b8c9b27d | 1919 | xfree (exec_path); |
c906108c | 1920 | if (from_tty) |
c5aa993b | 1921 | path_info ((char *) NULL, from_tty); |
c906108c | 1922 | } |
c906108c | 1923 | \f |
c5aa993b | 1924 | |
1777feb0 | 1925 | /* Print out the machine register regnum. If regnum is -1, print all |
0ab7a791 AC |
1926 | registers (print_all == 1) or all non-float and non-vector |
1927 | registers (print_all == 0). | |
c906108c SS |
1928 | |
1929 | For most machines, having all_registers_info() print the | |
0ab7a791 AC |
1930 | register(s) one per line is good enough. If a different format is |
1931 | required, (eg, for MIPS or Pyramid 90x, which both have lots of | |
1932 | regs), or there is an existing convention for showing all the | |
1933 | registers, define the architecture method PRINT_REGISTERS_INFO to | |
1934 | provide that format. */ | |
c906108c | 1935 | |
666e11c5 | 1936 | void |
0ab7a791 AC |
1937 | default_print_registers_info (struct gdbarch *gdbarch, |
1938 | struct ui_file *file, | |
1939 | struct frame_info *frame, | |
1940 | int regnum, int print_all) | |
c906108c | 1941 | { |
0ab7a791 | 1942 | int i; |
a4bd449d UW |
1943 | const int numregs = gdbarch_num_regs (gdbarch) |
1944 | + gdbarch_num_pseudo_regs (gdbarch); | |
0ab7a791 | 1945 | |
c906108c SS |
1946 | for (i = 0; i < numregs; i++) |
1947 | { | |
29ec5263 PA |
1948 | struct type *regtype; |
1949 | struct value *val; | |
1950 | ||
4782dc19 AC |
1951 | /* Decide between printing all regs, non-float / vector regs, or |
1952 | specific reg. */ | |
c5aa993b JM |
1953 | if (regnum == -1) |
1954 | { | |
f9418c0f | 1955 | if (print_all) |
4782dc19 | 1956 | { |
f9418c0f | 1957 | if (!gdbarch_register_reggroup_p (gdbarch, i, all_reggroup)) |
4782dc19 | 1958 | continue; |
f9418c0f AC |
1959 | } |
1960 | else | |
1961 | { | |
1962 | if (!gdbarch_register_reggroup_p (gdbarch, i, general_reggroup)) | |
4782dc19 AC |
1963 | continue; |
1964 | } | |
c5aa993b JM |
1965 | } |
1966 | else | |
1967 | { | |
1968 | if (i != regnum) | |
1969 | continue; | |
1970 | } | |
c906108c SS |
1971 | |
1972 | /* If the register name is empty, it is undefined for this | |
c5aa993b | 1973 | processor, so don't display anything. */ |
a4bd449d UW |
1974 | if (gdbarch_register_name (gdbarch, i) == NULL |
1975 | || *(gdbarch_register_name (gdbarch, i)) == '\0') | |
c906108c SS |
1976 | continue; |
1977 | ||
a4bd449d | 1978 | fputs_filtered (gdbarch_register_name (gdbarch, i), file); |
c9f4d572 | 1979 | print_spaces_filtered (15 - strlen (gdbarch_register_name |
a4bd449d | 1980 | (gdbarch, i)), file); |
c906108c | 1981 | |
29ec5263 PA |
1982 | regtype = register_type (gdbarch, i); |
1983 | val = allocate_value (regtype); | |
1984 | ||
c906108c | 1985 | /* Get the data in raw format. */ |
29ec5263 | 1986 | if (! frame_register_read (frame, i, value_contents_raw (val))) |
c906108c | 1987 | { |
0ab7a791 | 1988 | fprintf_filtered (file, "*value not available*\n"); |
c906108c SS |
1989 | continue; |
1990 | } | |
1991 | ||
0ab7a791 AC |
1992 | /* If virtual format is floating, print it that way, and in raw |
1993 | hex. */ | |
29ec5263 PA |
1994 | if (TYPE_CODE (regtype) == TYPE_CODE_FLT |
1995 | || TYPE_CODE (regtype) == TYPE_CODE_DECFLOAT) | |
c906108c | 1996 | { |
0ab7a791 | 1997 | int j; |
79a45b7d | 1998 | struct value_print_options opts; |
29ec5263 | 1999 | const gdb_byte *valaddr = value_contents_for_printing (val); |
c906108c | 2000 | |
79a45b7d TT |
2001 | get_user_print_options (&opts); |
2002 | opts.deref_ref = 1; | |
29ec5263 PA |
2003 | |
2004 | val_print (regtype, | |
2005 | value_contents_for_printing (val), | |
2006 | value_embedded_offset (val), 0, | |
2007 | file, 0, val, &opts, current_language); | |
c906108c | 2008 | |
0ab7a791 | 2009 | fprintf_filtered (file, "\t(raw 0x"); |
a4bd449d | 2010 | for (j = 0; j < register_size (gdbarch, i); j++) |
c906108c | 2011 | { |
0ab7a791 | 2012 | int idx; |
abbb1732 | 2013 | |
a4bd449d | 2014 | if (gdbarch_byte_order (gdbarch) == BFD_ENDIAN_BIG) |
0ab7a791 AC |
2015 | idx = j; |
2016 | else | |
a4bd449d | 2017 | idx = register_size (gdbarch, i) - 1 - j; |
29ec5263 | 2018 | fprintf_filtered (file, "%02x", (unsigned char) valaddr[idx]); |
c906108c | 2019 | } |
0ab7a791 | 2020 | fprintf_filtered (file, ")"); |
c906108c | 2021 | } |
c906108c SS |
2022 | else |
2023 | { | |
79a45b7d TT |
2024 | struct value_print_options opts; |
2025 | ||
ab4327e0 | 2026 | /* Print the register in hex. */ |
79a45b7d TT |
2027 | get_formatted_print_options (&opts, 'x'); |
2028 | opts.deref_ref = 1; | |
29ec5263 PA |
2029 | val_print (regtype, |
2030 | value_contents_for_printing (val), | |
2031 | value_embedded_offset (val), 0, | |
2032 | file, 0, val, &opts, current_language); | |
ab4327e0 EZ |
2033 | /* If not a vector register, print it also according to its |
2034 | natural format. */ | |
29ec5263 | 2035 | if (TYPE_VECTOR (regtype) == 0) |
ab4327e0 | 2036 | { |
79a45b7d TT |
2037 | get_user_print_options (&opts); |
2038 | opts.deref_ref = 1; | |
9d84ac84 | 2039 | fprintf_filtered (file, "\t"); |
29ec5263 PA |
2040 | val_print (regtype, |
2041 | value_contents_for_printing (val), | |
2042 | value_embedded_offset (val), 0, | |
2043 | file, 0, val, &opts, current_language); | |
ab4327e0 | 2044 | } |
c906108c SS |
2045 | } |
2046 | ||
0ab7a791 | 2047 | fprintf_filtered (file, "\n"); |
c906108c SS |
2048 | } |
2049 | } | |
c906108c | 2050 | |
c906108c | 2051 | void |
fba45db2 | 2052 | registers_info (char *addr_exp, int fpregs) |
c906108c | 2053 | { |
206415a3 | 2054 | struct frame_info *frame; |
a4bd449d | 2055 | struct gdbarch *gdbarch; |
c906108c SS |
2056 | |
2057 | if (!target_has_registers) | |
8a3fe4f8 | 2058 | error (_("The program has no registers now.")); |
206415a3 | 2059 | frame = get_selected_frame (NULL); |
a4bd449d | 2060 | gdbarch = get_frame_arch (frame); |
c906108c SS |
2061 | |
2062 | if (!addr_exp) | |
2063 | { | |
a4bd449d | 2064 | gdbarch_print_registers_info (gdbarch, gdb_stdout, |
206415a3 | 2065 | frame, -1, fpregs); |
c906108c SS |
2066 | return; |
2067 | } | |
2068 | ||
f9418c0f | 2069 | while (*addr_exp != '\0') |
c5aa993b | 2070 | { |
f9418c0f AC |
2071 | char *start; |
2072 | const char *end; | |
c906108c | 2073 | |
f9418c0f AC |
2074 | /* Keep skipping leading white space. */ |
2075 | if (isspace ((*addr_exp))) | |
2076 | { | |
2077 | addr_exp++; | |
2078 | continue; | |
2079 | } | |
c906108c | 2080 | |
f9418c0f AC |
2081 | /* Discard any leading ``$''. Check that there is something |
2082 | resembling a register following it. */ | |
2083 | if (addr_exp[0] == '$') | |
2084 | addr_exp++; | |
2085 | if (isspace ((*addr_exp)) || (*addr_exp) == '\0') | |
8a3fe4f8 | 2086 | error (_("Missing register name")); |
c906108c | 2087 | |
f9418c0f AC |
2088 | /* Find the start/end of this register name/num/group. */ |
2089 | start = addr_exp; | |
2090 | while ((*addr_exp) != '\0' && !isspace ((*addr_exp))) | |
2091 | addr_exp++; | |
2092 | end = addr_exp; | |
ad842144 | 2093 | |
f9418c0f AC |
2094 | /* Figure out what we've found and display it. */ |
2095 | ||
2096 | /* A register name? */ | |
2097 | { | |
029a67e4 | 2098 | int regnum = user_reg_map_name_to_regnum (gdbarch, start, end - start); |
abbb1732 | 2099 | |
f9418c0f AC |
2100 | if (regnum >= 0) |
2101 | { | |
ad842144 MR |
2102 | /* User registers lie completely outside of the range of |
2103 | normal registers. Catch them early so that the target | |
2104 | never sees them. */ | |
2105 | if (regnum >= gdbarch_num_regs (gdbarch) | |
2106 | + gdbarch_num_pseudo_regs (gdbarch)) | |
2107 | { | |
79a45b7d | 2108 | struct value_print_options opts; |
ad842144 MR |
2109 | struct value *val = value_of_user_reg (regnum, frame); |
2110 | ||
2111 | printf_filtered ("%s: ", start); | |
79a45b7d | 2112 | get_formatted_print_options (&opts, 'x'); |
ab2188aa PA |
2113 | val_print_scalar_formatted (check_typedef (value_type (val)), |
2114 | value_contents_for_printing (val), | |
2115 | value_embedded_offset (val), | |
2116 | val, | |
2117 | &opts, 0, gdb_stdout); | |
ad842144 MR |
2118 | printf_filtered ("\n"); |
2119 | } | |
2120 | else | |
2121 | gdbarch_print_registers_info (gdbarch, gdb_stdout, | |
2122 | frame, regnum, fpregs); | |
f9418c0f AC |
2123 | continue; |
2124 | } | |
2125 | } | |
ad842144 | 2126 | |
f9418c0f AC |
2127 | /* A register group? */ |
2128 | { | |
6c7d17ba | 2129 | struct reggroup *group; |
abbb1732 | 2130 | |
a4bd449d | 2131 | for (group = reggroup_next (gdbarch, NULL); |
6c7d17ba | 2132 | group != NULL; |
a4bd449d | 2133 | group = reggroup_next (gdbarch, group)) |
f9418c0f AC |
2134 | { |
2135 | /* Don't bother with a length check. Should the user | |
2136 | enter a short register group name, go with the first | |
2137 | group that matches. */ | |
6c7d17ba | 2138 | if (strncmp (start, reggroup_name (group), end - start) == 0) |
f9418c0f AC |
2139 | break; |
2140 | } | |
6c7d17ba | 2141 | if (group != NULL) |
f9418c0f AC |
2142 | { |
2143 | int regnum; | |
abbb1732 | 2144 | |
f57d151a | 2145 | for (regnum = 0; |
a4bd449d UW |
2146 | regnum < gdbarch_num_regs (gdbarch) |
2147 | + gdbarch_num_pseudo_regs (gdbarch); | |
f57d151a | 2148 | regnum++) |
f9418c0f | 2149 | { |
a4bd449d UW |
2150 | if (gdbarch_register_reggroup_p (gdbarch, regnum, group)) |
2151 | gdbarch_print_registers_info (gdbarch, | |
206415a3 | 2152 | gdb_stdout, frame, |
f9418c0f AC |
2153 | regnum, fpregs); |
2154 | } | |
2155 | continue; | |
2156 | } | |
2157 | } | |
c906108c | 2158 | |
f9418c0f | 2159 | /* Nothing matched. */ |
8a3fe4f8 | 2160 | error (_("Invalid register `%.*s'"), (int) (end - start), start); |
c5aa993b | 2161 | } |
c906108c SS |
2162 | } |
2163 | ||
2164 | void | |
fba45db2 | 2165 | all_registers_info (char *addr_exp, int from_tty) |
c906108c SS |
2166 | { |
2167 | registers_info (addr_exp, 1); | |
2168 | } | |
2169 | ||
a58dd373 | 2170 | static void |
fba45db2 | 2171 | nofp_registers_info (char *addr_exp, int from_tty) |
c906108c SS |
2172 | { |
2173 | registers_info (addr_exp, 0); | |
2174 | } | |
e76f1f2e AC |
2175 | |
2176 | static void | |
d80b854b | 2177 | print_vector_info (struct ui_file *file, |
e76f1f2e AC |
2178 | struct frame_info *frame, const char *args) |
2179 | { | |
d80b854b UW |
2180 | struct gdbarch *gdbarch = get_frame_arch (frame); |
2181 | ||
e76f1f2e AC |
2182 | if (gdbarch_print_vector_info_p (gdbarch)) |
2183 | gdbarch_print_vector_info (gdbarch, file, frame, args); | |
2184 | else | |
2185 | { | |
2186 | int regnum; | |
2187 | int printed_something = 0; | |
ab4327e0 | 2188 | |
f57d151a | 2189 | for (regnum = 0; |
a4bd449d UW |
2190 | regnum < gdbarch_num_regs (gdbarch) |
2191 | + gdbarch_num_pseudo_regs (gdbarch); | |
f57d151a | 2192 | regnum++) |
e76f1f2e | 2193 | { |
f9418c0f | 2194 | if (gdbarch_register_reggroup_p (gdbarch, regnum, vector_reggroup)) |
e76f1f2e AC |
2195 | { |
2196 | printed_something = 1; | |
e76f1f2e | 2197 | gdbarch_print_registers_info (gdbarch, file, frame, regnum, 1); |
e76f1f2e AC |
2198 | } |
2199 | } | |
2200 | if (!printed_something) | |
2201 | fprintf_filtered (file, "No vector information\n"); | |
2202 | } | |
2203 | } | |
2204 | ||
2205 | static void | |
2206 | vector_info (char *args, int from_tty) | |
2207 | { | |
206415a3 DJ |
2208 | if (!target_has_registers) |
2209 | error (_("The program has no registers now.")); | |
2210 | ||
d80b854b | 2211 | print_vector_info (gdb_stdout, get_selected_frame (NULL), args); |
e76f1f2e | 2212 | } |
c906108c | 2213 | \f |
5fd62852 PA |
2214 | /* Kill the inferior process. Make us have no inferior. */ |
2215 | ||
2216 | static void | |
2217 | kill_command (char *arg, int from_tty) | |
2218 | { | |
2219 | /* FIXME: This should not really be inferior_ptid (or target_has_execution). | |
2220 | It should be a distinct flag that indicates that a target is active, cuz | |
1777feb0 | 2221 | some targets don't have processes! */ |
5fd62852 PA |
2222 | |
2223 | if (ptid_equal (inferior_ptid, null_ptid)) | |
2224 | error (_("The program is not being run.")); | |
2225 | if (!query (_("Kill the program being debugged? "))) | |
2226 | error (_("Not confirmed.")); | |
2227 | target_kill (); | |
2228 | ||
c35b1492 PA |
2229 | /* If we still have other inferiors to debug, then don't mess with |
2230 | with their threads. */ | |
2231 | if (!have_inferiors ()) | |
5fd62852 | 2232 | { |
1777feb0 | 2233 | init_thread_list (); /* Destroy thread info. */ |
5fd62852 PA |
2234 | |
2235 | /* Killing off the inferior can leave us with a core file. If | |
2236 | so, print the state we are left in. */ | |
2237 | if (target_has_stack) | |
2238 | { | |
2239 | printf_filtered (_("In %s,\n"), target_longname); | |
2240 | print_stack_frame (get_selected_frame (NULL), 1, SRC_AND_LOC); | |
2241 | } | |
2242 | } | |
2243 | bfd_cache_close_all (); | |
2244 | } | |
c5aa993b | 2245 | |
74531fed PA |
2246 | /* Used in `attach&' command. ARG is a point to an integer |
2247 | representing a process id. Proceed threads of this process iff | |
2248 | they stopped due to debugger request, and when they did, they | |
2249 | reported a clean stop (TARGET_SIGNAL_0). Do not proceed threads | |
2250 | that have been explicitly been told to stop. */ | |
2251 | ||
2252 | static int | |
2253 | proceed_after_attach_callback (struct thread_info *thread, | |
2254 | void *arg) | |
2255 | { | |
2256 | int pid = * (int *) arg; | |
2257 | ||
2258 | if (ptid_get_pid (thread->ptid) == pid | |
2259 | && !is_exited (thread->ptid) | |
2260 | && !is_executing (thread->ptid) | |
2261 | && !thread->stop_requested | |
16c381f0 | 2262 | && thread->suspend.stop_signal == TARGET_SIGNAL_0) |
74531fed PA |
2263 | { |
2264 | switch_to_thread (thread->ptid); | |
2265 | clear_proceed_status (); | |
2266 | proceed ((CORE_ADDR) -1, TARGET_SIGNAL_DEFAULT, 0); | |
2267 | } | |
2268 | ||
2269 | return 0; | |
2270 | } | |
2271 | ||
2272 | static void | |
2273 | proceed_after_attach (int pid) | |
2274 | { | |
2275 | /* Don't error out if the current thread is running, because | |
2276 | there may be other stopped threads. */ | |
2277 | struct cleanup *old_chain; | |
2278 | ||
2279 | /* Backup current thread and selected frame. */ | |
2280 | old_chain = make_cleanup_restore_current_thread (); | |
2281 | ||
2282 | iterate_over_threads (proceed_after_attach_callback, &pid); | |
2283 | ||
2284 | /* Restore selected ptid. */ | |
2285 | do_cleanups (old_chain); | |
2286 | } | |
2287 | ||
c906108c SS |
2288 | /* |
2289 | * TODO: | |
2290 | * Should save/restore the tty state since it might be that the | |
2291 | * program to be debugged was started on this tty and it wants | |
2292 | * the tty in some state other than what we want. If it's running | |
2293 | * on another terminal or without a terminal, then saving and | |
2294 | * restoring the tty state is a harmless no-op. | |
2295 | * This only needs to be done if we are attaching to a process. | |
2296 | */ | |
2297 | ||
1777feb0 | 2298 | /* attach_command -- |
c906108c SS |
2299 | takes a program started up outside of gdb and ``attaches'' to it. |
2300 | This stops it cold in its tracks and allows us to start debugging it. | |
2301 | and wait for the trace-trap that results from attaching. */ | |
2302 | ||
9356cf8d PA |
2303 | static void |
2304 | attach_command_post_wait (char *args, int from_tty, int async_exec) | |
2305 | { | |
2306 | char *exec_file; | |
2307 | char *full_exec_path = NULL; | |
d6b48e9c | 2308 | struct inferior *inferior; |
9356cf8d | 2309 | |
d6b48e9c | 2310 | inferior = current_inferior (); |
16c381f0 | 2311 | inferior->control.stop_soon = NO_STOP_QUIETLY; |
9356cf8d PA |
2312 | |
2313 | /* If no exec file is yet known, try to determine it from the | |
2314 | process itself. */ | |
2315 | exec_file = (char *) get_exec_file (0); | |
2316 | if (!exec_file) | |
2317 | { | |
2318 | exec_file = target_pid_to_exec_file (PIDGET (inferior_ptid)); | |
2319 | if (exec_file) | |
2320 | { | |
2321 | /* It's possible we don't have a full path, but rather just a | |
2322 | filename. Some targets, such as HP-UX, don't provide the | |
2323 | full path, sigh. | |
2324 | ||
2325 | Attempt to qualify the filename against the source path. | |
2326 | (If that fails, we'll just fall back on the original | |
1777feb0 MS |
2327 | filename. Not much more we can do...) */ |
2328 | ||
9356cf8d | 2329 | if (!source_full_path_of (exec_file, &full_exec_path)) |
1b36a34b | 2330 | full_exec_path = xstrdup (exec_file); |
9356cf8d PA |
2331 | |
2332 | exec_file_attach (full_exec_path, from_tty); | |
2333 | symbol_file_add_main (full_exec_path, from_tty); | |
2334 | } | |
2335 | } | |
2336 | else | |
2337 | { | |
2338 | reopen_exec_file (); | |
2339 | reread_symbols (); | |
2340 | } | |
2341 | ||
2342 | /* Take any necessary post-attaching actions for this platform. */ | |
2343 | target_post_attach (PIDGET (inferior_ptid)); | |
2344 | ||
2345 | post_create_inferior (¤t_target, from_tty); | |
2346 | ||
2347 | /* Install inferior's terminal modes. */ | |
2348 | target_terminal_inferior (); | |
2349 | ||
2350 | if (async_exec) | |
74531fed PA |
2351 | { |
2352 | /* The user requested an `attach&', so be sure to leave threads | |
2353 | that didn't get a signal running. */ | |
2354 | ||
2355 | /* Immediatelly resume all suspended threads of this inferior, | |
2356 | and this inferior only. This should have no effect on | |
2357 | already running threads. If a thread has been stopped with a | |
2358 | signal, leave it be. */ | |
2359 | if (non_stop) | |
2360 | proceed_after_attach (inferior->pid); | |
2361 | else | |
2362 | { | |
16c381f0 | 2363 | if (inferior_thread ()->suspend.stop_signal == TARGET_SIGNAL_0) |
74531fed PA |
2364 | { |
2365 | clear_proceed_status (); | |
2366 | proceed ((CORE_ADDR) -1, TARGET_SIGNAL_DEFAULT, 0); | |
2367 | } | |
2368 | } | |
2369 | } | |
9356cf8d PA |
2370 | else |
2371 | { | |
74531fed PA |
2372 | /* The user requested a plain `attach', so be sure to leave |
2373 | the inferior stopped. */ | |
2374 | ||
9356cf8d PA |
2375 | if (target_can_async_p ()) |
2376 | async_enable_stdin (); | |
74531fed PA |
2377 | |
2378 | /* At least the current thread is already stopped. */ | |
2379 | ||
2380 | /* In all-stop, by definition, all threads have to be already | |
2381 | stopped at this point. In non-stop, however, although the | |
2382 | selected thread is stopped, others may still be executing. | |
2383 | Be sure to explicitly stop all threads of the process. This | |
2384 | should have no effect on already stopped threads. */ | |
2385 | if (non_stop) | |
2386 | target_stop (pid_to_ptid (inferior->pid)); | |
2387 | ||
2388 | /* Tell the user/frontend where we're stopped. */ | |
9356cf8d PA |
2389 | normal_stop (); |
2390 | if (deprecated_attach_hook) | |
2391 | deprecated_attach_hook (); | |
2392 | } | |
2393 | } | |
2394 | ||
bfec99b2 | 2395 | struct attach_command_continuation_args |
9356cf8d PA |
2396 | { |
2397 | char *args; | |
2398 | int from_tty; | |
2399 | int async_exec; | |
bfec99b2 | 2400 | }; |
9356cf8d | 2401 | |
bfec99b2 | 2402 | static void |
604ead4a | 2403 | attach_command_continuation (void *args) |
bfec99b2 PA |
2404 | { |
2405 | struct attach_command_continuation_args *a = args; | |
abbb1732 | 2406 | |
bfec99b2 | 2407 | attach_command_post_wait (a->args, a->from_tty, a->async_exec); |
9356cf8d PA |
2408 | } |
2409 | ||
604ead4a PA |
2410 | static void |
2411 | attach_command_continuation_free_args (void *args) | |
2412 | { | |
2413 | struct attach_command_continuation_args *a = args; | |
abbb1732 | 2414 | |
604ead4a PA |
2415 | xfree (a->args); |
2416 | xfree (a); | |
2417 | } | |
2418 | ||
c906108c | 2419 | void |
fba45db2 | 2420 | attach_command (char *args, int from_tty) |
c906108c | 2421 | { |
9356cf8d | 2422 | int async_exec = 0; |
cb0362bb | 2423 | struct cleanup *back_to = make_cleanup (null_cleanup, NULL); |
c906108c | 2424 | |
c5aa993b | 2425 | dont_repeat (); /* Not for the faint of heart */ |
c906108c | 2426 | |
2567c7d9 PA |
2427 | if (gdbarch_has_global_solist (target_gdbarch)) |
2428 | /* Don't complain if all processes share the same symbol | |
2429 | space. */ | |
8a305172 PA |
2430 | ; |
2431 | else if (target_has_execution) | |
c906108c | 2432 | { |
9e2f0ad4 | 2433 | if (query (_("A program is being debugged already. Kill it? "))) |
c906108c SS |
2434 | target_kill (); |
2435 | else | |
8a3fe4f8 | 2436 | error (_("Not killed.")); |
c906108c SS |
2437 | } |
2438 | ||
fd79ecee DJ |
2439 | /* Clean up any leftovers from other runs. Some other things from |
2440 | this function should probably be moved into target_pre_inferior. */ | |
2441 | target_pre_inferior (from_tty); | |
2442 | ||
9908b566 VP |
2443 | if (non_stop && !target_supports_non_stop ()) |
2444 | error (_("Cannot attach to this target in non-stop mode")); | |
2445 | ||
9356cf8d PA |
2446 | if (args) |
2447 | { | |
2448 | async_exec = strip_bg_char (&args); | |
2449 | ||
2450 | /* If we get a request for running in the bg but the target | |
1777feb0 | 2451 | doesn't support it, error out. */ |
9356cf8d PA |
2452 | if (async_exec && !target_can_async_p ()) |
2453 | error (_("Asynchronous execution not supported on this target.")); | |
2454 | } | |
2455 | ||
2456 | /* If we don't get a request of running in the bg, then we need | |
2457 | to simulate synchronous (fg) execution. */ | |
2458 | if (!async_exec && target_can_async_p ()) | |
2459 | { | |
1777feb0 | 2460 | /* Simulate synchronous execution. */ |
9356cf8d | 2461 | async_disable_stdin (); |
cb0362bb | 2462 | make_cleanup ((make_cleanup_ftype *)async_enable_stdin, NULL); |
9356cf8d PA |
2463 | } |
2464 | ||
c906108c SS |
2465 | target_attach (args, from_tty); |
2466 | ||
2467 | /* Set up the "saved terminal modes" of the inferior | |
2468 | based on what modes we are starting it with. */ | |
2469 | target_terminal_init (); | |
2470 | ||
c906108c SS |
2471 | /* Set up execution context to know that we should return from |
2472 | wait_for_inferior as soon as the target reports a stop. */ | |
2473 | init_wait_for_inferior (); | |
2474 | clear_proceed_status (); | |
c906108c | 2475 | |
74531fed PA |
2476 | if (non_stop) |
2477 | { | |
2478 | /* If we find that the current thread isn't stopped, explicitly | |
2479 | do so now, because we're going to install breakpoints and | |
2480 | poke at memory. */ | |
2481 | ||
2482 | if (async_exec) | |
2483 | /* The user requested an `attach&'; stop just one thread. */ | |
2484 | target_stop (inferior_ptid); | |
2485 | else | |
2486 | /* The user requested an `attach', so stop all threads of this | |
2487 | inferior. */ | |
2488 | target_stop (pid_to_ptid (ptid_get_pid (inferior_ptid))); | |
2489 | } | |
2490 | ||
dc177b7a PA |
2491 | /* Some system don't generate traps when attaching to inferior. |
2492 | E.g. Mach 3 or GNU hurd. */ | |
2493 | if (!target_attach_no_wait) | |
c5aa993b | 2494 | { |
d6b48e9c PA |
2495 | struct inferior *inferior = current_inferior (); |
2496 | ||
1777feb0 | 2497 | /* Careful here. See comments in inferior.h. Basically some |
dc177b7a PA |
2498 | OSes don't ignore SIGSTOPs on continue requests anymore. We |
2499 | need a way for handle_inferior_event to reset the stop_signal | |
2500 | variable after an attach, and this is what | |
2501 | STOP_QUIETLY_NO_SIGSTOP is for. */ | |
16c381f0 | 2502 | inferior->control.stop_soon = STOP_QUIETLY_NO_SIGSTOP; |
c5aa993b | 2503 | |
dc177b7a PA |
2504 | if (target_can_async_p ()) |
2505 | { | |
2506 | /* sync_execution mode. Wait for stop. */ | |
bfec99b2 PA |
2507 | struct attach_command_continuation_args *a; |
2508 | ||
2509 | a = xmalloc (sizeof (*a)); | |
2510 | a->args = xstrdup (args); | |
2511 | a->from_tty = from_tty; | |
2512 | a->async_exec = async_exec; | |
e0ba6746 PA |
2513 | add_inferior_continuation (attach_command_continuation, a, |
2514 | attach_command_continuation_free_args); | |
cb0362bb | 2515 | discard_cleanups (back_to); |
dc177b7a PA |
2516 | return; |
2517 | } | |
c906108c | 2518 | |
dc177b7a PA |
2519 | wait_for_inferior (0); |
2520 | } | |
6426a772 | 2521 | |
9356cf8d | 2522 | attach_command_post_wait (args, from_tty, async_exec); |
cb0362bb | 2523 | discard_cleanups (back_to); |
c906108c SS |
2524 | } |
2525 | ||
1941c569 PA |
2526 | /* We had just found out that the target was already attached to an |
2527 | inferior. PTID points at a thread of this new inferior, that is | |
2528 | the most likely to be stopped right now, but not necessarily so. | |
2529 | The new inferior is assumed to be already added to the inferior | |
2530 | list at this point. If LEAVE_RUNNING, then leave the threads of | |
2531 | this inferior running, except those we've explicitly seen reported | |
2532 | as stopped. */ | |
2533 | ||
2534 | void | |
2535 | notice_new_inferior (ptid_t ptid, int leave_running, int from_tty) | |
2536 | { | |
2537 | struct cleanup* old_chain; | |
2538 | int async_exec; | |
2539 | ||
2540 | old_chain = make_cleanup (null_cleanup, NULL); | |
2541 | ||
2542 | /* If in non-stop, leave threads as running as they were. If | |
2543 | they're stopped for some reason other than us telling it to, the | |
2544 | target reports a signal != TARGET_SIGNAL_0. We don't try to | |
2545 | resume threads with such a stop signal. */ | |
2546 | async_exec = non_stop; | |
2547 | ||
2548 | if (!ptid_equal (inferior_ptid, null_ptid)) | |
2549 | make_cleanup_restore_current_thread (); | |
2550 | ||
2551 | switch_to_thread (ptid); | |
2552 | ||
2553 | /* When we "notice" a new inferior we need to do all the things we | |
2554 | would normally do if we had just attached to it. */ | |
2555 | ||
2556 | if (is_executing (inferior_ptid)) | |
2557 | { | |
2558 | struct inferior *inferior = current_inferior (); | |
2559 | ||
2560 | /* We're going to install breakpoints, and poke at memory, | |
2561 | ensure that the inferior is stopped for a moment while we do | |
2562 | that. */ | |
2563 | target_stop (inferior_ptid); | |
2564 | ||
16c381f0 | 2565 | inferior->control.stop_soon = STOP_QUIETLY_REMOTE; |
1941c569 PA |
2566 | |
2567 | /* Wait for stop before proceeding. */ | |
2568 | if (target_can_async_p ()) | |
2569 | { | |
2570 | struct attach_command_continuation_args *a; | |
2571 | ||
2572 | a = xmalloc (sizeof (*a)); | |
2573 | a->args = xstrdup (""); | |
2574 | a->from_tty = from_tty; | |
2575 | a->async_exec = async_exec; | |
2576 | add_inferior_continuation (attach_command_continuation, a, | |
2577 | attach_command_continuation_free_args); | |
2578 | ||
2579 | do_cleanups (old_chain); | |
2580 | return; | |
2581 | } | |
2582 | else | |
2583 | wait_for_inferior (0); | |
2584 | } | |
2585 | ||
2586 | async_exec = leave_running; | |
2587 | attach_command_post_wait ("" /* args */, from_tty, async_exec); | |
2588 | ||
2589 | do_cleanups (old_chain); | |
2590 | } | |
2591 | ||
c906108c SS |
2592 | /* |
2593 | * detach_command -- | |
2594 | * takes a program previously attached to and detaches it. | |
2595 | * The program resumes execution and will no longer stop | |
2596 | * on signals, etc. We better not have left any breakpoints | |
2597 | * in the program or it'll die when it hits one. For this | |
2598 | * to work, it may be necessary for the process to have been | |
2599 | * previously attached. It *might* work if the program was | |
2600 | * started via the normal ptrace (PTRACE_TRACEME). | |
2601 | */ | |
2602 | ||
6418d433 | 2603 | void |
fba45db2 | 2604 | detach_command (char *args, int from_tty) |
c906108c | 2605 | { |
1f5d0fc9 | 2606 | dont_repeat (); /* Not for the faint of heart. */ |
d729566a PA |
2607 | |
2608 | if (ptid_equal (inferior_ptid, null_ptid)) | |
2609 | error (_("The program is not being run.")); | |
2610 | ||
33da3f1c | 2611 | disconnect_tracing (from_tty); |
d5551862 | 2612 | |
c906108c | 2613 | target_detach (args, from_tty); |
50c71eaf PA |
2614 | |
2615 | /* If the solist is global across inferiors, don't clear it when we | |
2616 | detach from a single inferior. */ | |
2617 | if (!gdbarch_has_global_solist (target_gdbarch)) | |
2618 | no_shared_libraries (NULL, from_tty); | |
8a305172 | 2619 | |
c35b1492 PA |
2620 | /* If we still have inferiors to debug, then don't mess with their |
2621 | threads. */ | |
2622 | if (!have_inferiors ()) | |
8a305172 PA |
2623 | init_thread_list (); |
2624 | ||
9a4105ab AC |
2625 | if (deprecated_detach_hook) |
2626 | deprecated_detach_hook (); | |
c906108c SS |
2627 | } |
2628 | ||
6ad8ae5c DJ |
2629 | /* Disconnect from the current target without resuming it (leaving it |
2630 | waiting for a debugger). | |
2631 | ||
2632 | We'd better not have left any breakpoints in the program or the | |
2633 | next debugger will get confused. Currently only supported for some | |
2634 | remote targets, since the normal attach mechanisms don't work on | |
2635 | stopped processes on some native platforms (e.g. GNU/Linux). */ | |
2636 | ||
2637 | static void | |
2638 | disconnect_command (char *args, int from_tty) | |
2639 | { | |
1777feb0 | 2640 | dont_repeat (); /* Not for the faint of heart. */ |
6ad8ae5c | 2641 | target_disconnect (args, from_tty); |
e85a822c | 2642 | no_shared_libraries (NULL, from_tty); |
a0ef4274 | 2643 | init_thread_list (); |
9a4105ab AC |
2644 | if (deprecated_detach_hook) |
2645 | deprecated_detach_hook (); | |
6ad8ae5c DJ |
2646 | } |
2647 | ||
77ebaa5a VP |
2648 | void |
2649 | interrupt_target_1 (int all_threads) | |
2650 | { | |
2651 | ptid_t ptid; | |
abbb1732 | 2652 | |
77ebaa5a VP |
2653 | if (all_threads) |
2654 | ptid = minus_one_ptid; | |
2655 | else | |
2656 | ptid = inferior_ptid; | |
2657 | target_stop (ptid); | |
252fbfc8 PA |
2658 | |
2659 | /* Tag the thread as having been explicitly requested to stop, so | |
2660 | other parts of gdb know not to resume this thread automatically, | |
2661 | if it was stopped due to an internal event. Limit this to | |
2662 | non-stop mode, as when debugging a multi-threaded application in | |
2663 | all-stop mode, we will only get one stop event --- it's undefined | |
2664 | which thread will report the event. */ | |
2665 | if (non_stop) | |
2666 | set_stop_requested (ptid, 1); | |
77ebaa5a VP |
2667 | } |
2668 | ||
43ff13b4 | 2669 | /* Stop the execution of the target while running in async mode, in |
8cae4b3f PA |
2670 | the backgound. In all-stop, stop the whole process. In non-stop |
2671 | mode, stop the current thread only by default, or stop all threads | |
2672 | if the `-a' switch is used. */ | |
2673 | ||
2674 | /* interrupt [-a] */ | |
8b93c638 | 2675 | void |
fba45db2 | 2676 | interrupt_target_command (char *args, int from_tty) |
43ff13b4 | 2677 | { |
362646f5 | 2678 | if (target_can_async_p ()) |
43ff13b4 | 2679 | { |
8cae4b3f PA |
2680 | int all_threads = 0; |
2681 | ||
1777feb0 | 2682 | dont_repeat (); /* Not for the faint of heart. */ |
94cc34af | 2683 | |
8cae4b3f PA |
2684 | if (args != NULL |
2685 | && strncmp (args, "-a", sizeof ("-a") - 1) == 0) | |
2686 | all_threads = 1; | |
2687 | ||
2688 | if (!non_stop && all_threads) | |
2689 | error (_("-a is meaningless in all-stop mode.")); | |
2690 | ||
77ebaa5a | 2691 | interrupt_target_1 (all_threads); |
43ff13b4 JM |
2692 | } |
2693 | } | |
2694 | ||
c906108c | 2695 | static void |
d80b854b | 2696 | print_float_info (struct ui_file *file, |
23e3a7ac | 2697 | struct frame_info *frame, const char *args) |
c906108c | 2698 | { |
d80b854b UW |
2699 | struct gdbarch *gdbarch = get_frame_arch (frame); |
2700 | ||
23e3a7ac AC |
2701 | if (gdbarch_print_float_info_p (gdbarch)) |
2702 | gdbarch_print_float_info (gdbarch, file, frame, args); | |
2703 | else | |
2704 | { | |
23e3a7ac AC |
2705 | int regnum; |
2706 | int printed_something = 0; | |
ab4327e0 | 2707 | |
f57d151a | 2708 | for (regnum = 0; |
a4bd449d UW |
2709 | regnum < gdbarch_num_regs (gdbarch) |
2710 | + gdbarch_num_pseudo_regs (gdbarch); | |
f57d151a | 2711 | regnum++) |
23e3a7ac | 2712 | { |
f9418c0f | 2713 | if (gdbarch_register_reggroup_p (gdbarch, regnum, float_reggroup)) |
23e3a7ac AC |
2714 | { |
2715 | printed_something = 1; | |
23e3a7ac | 2716 | gdbarch_print_registers_info (gdbarch, file, frame, regnum, 1); |
23e3a7ac AC |
2717 | } |
2718 | } | |
2719 | if (!printed_something) | |
3e43a32a MS |
2720 | fprintf_filtered (file, "No floating-point info " |
2721 | "available for this processor.\n"); | |
23e3a7ac AC |
2722 | } |
2723 | } | |
2724 | ||
2725 | static void | |
2726 | float_info (char *args, int from_tty) | |
2727 | { | |
206415a3 DJ |
2728 | if (!target_has_registers) |
2729 | error (_("The program has no registers now.")); | |
2730 | ||
d80b854b | 2731 | print_float_info (gdb_stdout, get_selected_frame (NULL), args); |
c906108c SS |
2732 | } |
2733 | \f | |
c906108c | 2734 | static void |
fba45db2 | 2735 | unset_command (char *args, int from_tty) |
c906108c | 2736 | { |
3e43a32a MS |
2737 | printf_filtered (_("\"unset\" must be followed by the " |
2738 | "name of an unset subcommand.\n")); | |
c906108c SS |
2739 | help_list (unsetlist, "unset ", -1, gdb_stdout); |
2740 | } | |
2741 | ||
2742 | void | |
fba45db2 | 2743 | _initialize_infcmd (void) |
c906108c | 2744 | { |
3cb3b8df BR |
2745 | struct cmd_list_element *c = NULL; |
2746 | ||
1777feb0 | 2747 | /* Add the filename of the terminal connected to inferior I/O. */ |
3cb3b8df | 2748 | add_setshow_filename_cmd ("inferior-tty", class_run, |
3f81c18a | 2749 | &inferior_io_terminal_scratch, _("\ |
3cb3b8df BR |
2750 | Set terminal for future runs of program being debugged."), _("\ |
2751 | Show terminal for future runs of program being debugged."), _("\ | |
3f81c18a VP |
2752 | Usage: set inferior-tty /dev/pts/1"), |
2753 | set_inferior_tty_command, | |
2754 | show_inferior_tty_command, | |
2755 | &setlist, &showlist); | |
3cb3b8df | 2756 | add_com_alias ("tty", "set inferior-tty", class_alias, 0); |
c906108c | 2757 | |
b4b4ac0b | 2758 | add_setshow_optional_filename_cmd ("args", class_run, |
3f81c18a | 2759 | &inferior_args_scratch, _("\ |
b4b4ac0b AC |
2760 | Set argument list to give program being debugged when it is started."), _("\ |
2761 | Show argument list to give program being debugged when it is started."), _("\ | |
2762 | Follow this command with any number of args, to be passed to the program."), | |
3f81c18a VP |
2763 | set_args_command, |
2764 | show_args_command, | |
b4b4ac0b | 2765 | &setlist, &showlist); |
c906108c | 2766 | |
1a966eab AC |
2767 | c = add_cmd ("environment", no_class, environment_info, _("\ |
2768 | The environment to give the program, or one variable's value.\n\ | |
c906108c SS |
2769 | With an argument VAR, prints the value of environment variable VAR to\n\ |
2770 | give the program being debugged. With no arguments, prints the entire\n\ | |
1a966eab | 2771 | environment to be given to the program."), &showlist); |
5ba2abeb | 2772 | set_cmd_completer (c, noop_completer); |
c906108c SS |
2773 | |
2774 | add_prefix_cmd ("unset", no_class, unset_command, | |
1bedd215 | 2775 | _("Complement to certain \"set\" commands."), |
c906108c | 2776 | &unsetlist, "unset ", 0, &cmdlist); |
c5aa993b | 2777 | |
1a966eab AC |
2778 | c = add_cmd ("environment", class_run, unset_environment_command, _("\ |
2779 | Cancel environment variable VAR for the program.\n\ | |
2780 | This does not affect the program until the next \"run\" command."), | |
c5aa993b | 2781 | &unsetlist); |
5ba2abeb | 2782 | set_cmd_completer (c, noop_completer); |
c906108c | 2783 | |
1a966eab AC |
2784 | c = add_cmd ("environment", class_run, set_environment_command, _("\ |
2785 | Set environment variable value to give the program.\n\ | |
c906108c SS |
2786 | Arguments are VAR VALUE where VAR is variable name and VALUE is value.\n\ |
2787 | VALUES of environment variables are uninterpreted strings.\n\ | |
1a966eab | 2788 | This does not affect the program until the next \"run\" command."), |
c5aa993b | 2789 | &setlist); |
5ba2abeb | 2790 | set_cmd_completer (c, noop_completer); |
c5aa993b | 2791 | |
1bedd215 AC |
2792 | c = add_com ("path", class_files, path_command, _("\ |
2793 | Add directory DIR(s) to beginning of search path for object files.\n\ | |
c906108c SS |
2794 | $cwd in the path means the current working directory.\n\ |
2795 | This path is equivalent to the $PATH shell variable. It is a list of\n\ | |
2796 | directories, separated by colons. These directories are searched to find\n\ | |
3e43a32a MS |
2797 | fully linked executable files and separately compiled object files as \ |
2798 | needed.")); | |
5ba2abeb | 2799 | set_cmd_completer (c, filename_completer); |
c906108c | 2800 | |
1a966eab AC |
2801 | c = add_cmd ("paths", no_class, path_info, _("\ |
2802 | Current search path for finding object files.\n\ | |
c906108c SS |
2803 | $cwd in the path means the current working directory.\n\ |
2804 | This path is equivalent to the $PATH shell variable. It is a list of\n\ | |
2805 | directories, separated by colons. These directories are searched to find\n\ | |
3e43a32a MS |
2806 | fully linked executable files and separately compiled object files as \ |
2807 | needed."), | |
c906108c | 2808 | &showlist); |
5ba2abeb | 2809 | set_cmd_completer (c, noop_completer); |
c906108c | 2810 | |
2277426b PA |
2811 | add_prefix_cmd ("kill", class_run, kill_command, |
2812 | _("Kill execution of program being debugged."), | |
2813 | &killlist, "kill ", 0, &cmdlist); | |
5fd62852 | 2814 | |
1bedd215 AC |
2815 | add_com ("attach", class_run, attach_command, _("\ |
2816 | Attach to a process or file outside of GDB.\n\ | |
c906108c SS |
2817 | This command attaches to another target, of the same type as your last\n\ |
2818 | \"target\" command (\"info files\" will show your target stack).\n\ | |
2819 | The command may take as argument a process id or a device file.\n\ | |
2820 | For a process id, you must have permission to send the process a signal,\n\ | |
2821 | and it must have the same effective uid as the debugger.\n\ | |
2822 | When using \"attach\" with a process id, the debugger finds the\n\ | |
2823 | program running in the process, looking first in the current working\n\ | |
2824 | directory, or (if not found there) using the source file search path\n\ | |
2825 | (see the \"directory\" command). You can also use the \"file\" command\n\ | |
1bedd215 | 2826 | to specify the program, and to load its symbol table.")); |
c906108c | 2827 | |
f73adfeb | 2828 | add_prefix_cmd ("detach", class_run, detach_command, _("\ |
1bedd215 | 2829 | Detach a process or file previously attached.\n\ |
c906108c | 2830 | If a process, it is no longer traced, and it continues its execution. If\n\ |
f73adfeb AS |
2831 | you were debugging a file, the file is closed and gdb no longer accesses it."), |
2832 | &detachlist, "detach ", 0, &cmdlist); | |
c906108c | 2833 | |
1bedd215 AC |
2834 | add_com ("disconnect", class_run, disconnect_command, _("\ |
2835 | Disconnect from a target.\n\ | |
6ad8ae5c | 2836 | The target will wait for another debugger to connect. Not available for\n\ |
1bedd215 | 2837 | all targets.")); |
6ad8ae5c | 2838 | |
1bedd215 AC |
2839 | add_com ("signal", class_run, signal_command, _("\ |
2840 | Continue program giving it signal specified by the argument.\n\ | |
2841 | An argument of \"0\" means continue program without giving it a signal.")); | |
c906108c | 2842 | |
1bedd215 AC |
2843 | add_com ("stepi", class_run, stepi_command, _("\ |
2844 | Step one instruction exactly.\n\ | |
3e43a32a MS |
2845 | Argument N means do this N times (or till program stops for another \ |
2846 | reason).")); | |
c906108c SS |
2847 | add_com_alias ("si", "stepi", class_alias, 0); |
2848 | ||
1bedd215 AC |
2849 | add_com ("nexti", class_run, nexti_command, _("\ |
2850 | Step one instruction, but proceed through subroutine calls.\n\ | |
3e43a32a MS |
2851 | Argument N means do this N times (or till program stops for another \ |
2852 | reason).")); | |
c906108c SS |
2853 | add_com_alias ("ni", "nexti", class_alias, 0); |
2854 | ||
1bedd215 AC |
2855 | add_com ("finish", class_run, finish_command, _("\ |
2856 | Execute until selected stack frame returns.\n\ | |
2857 | Upon return, the value returned is printed and put in the value history.")); | |
0e479716 | 2858 | add_com_alias ("fin", "finish", class_run, 1); |
c906108c | 2859 | |
1bedd215 AC |
2860 | add_com ("next", class_run, next_command, _("\ |
2861 | Step program, proceeding through subroutine calls.\n\ | |
c906108c SS |
2862 | Like the \"step\" command as long as subroutine calls do not happen;\n\ |
2863 | when they do, the call is treated as one instruction.\n\ | |
3e43a32a MS |
2864 | Argument N means do this N times (or till program stops for another \ |
2865 | reason).")); | |
c906108c SS |
2866 | add_com_alias ("n", "next", class_run, 1); |
2867 | if (xdb_commands) | |
c5aa993b | 2868 | add_com_alias ("S", "next", class_run, 1); |
c906108c | 2869 | |
1bedd215 AC |
2870 | add_com ("step", class_run, step_command, _("\ |
2871 | Step program until it reaches a different source line.\n\ | |
3e43a32a MS |
2872 | Argument N means do this N times (or till program stops for another \ |
2873 | reason).")); | |
c906108c SS |
2874 | add_com_alias ("s", "step", class_run, 1); |
2875 | ||
1bedd215 AC |
2876 | c = add_com ("until", class_run, until_command, _("\ |
2877 | Execute until the program reaches a source line greater than the current\n\ | |
3e43a32a MS |
2878 | or a specified location (same args as break command) within the current \ |
2879 | frame.")); | |
5ba2abeb | 2880 | set_cmd_completer (c, location_completer); |
c906108c | 2881 | add_com_alias ("u", "until", class_run, 1); |
c5aa993b | 2882 | |
1bedd215 | 2883 | c = add_com ("advance", class_run, advance_command, _("\ |
3e43a32a MS |
2884 | Continue the program up to the given location (same form as args for break \ |
2885 | command).\n\ | |
1bedd215 | 2886 | Execution will also stop upon exit from the current stack frame.")); |
ae66c1fc EZ |
2887 | set_cmd_completer (c, location_completer); |
2888 | ||
1bedd215 AC |
2889 | c = add_com ("jump", class_run, jump_command, _("\ |
2890 | Continue program being debugged at specified line or address.\n\ | |
c906108c | 2891 | Give as argument either LINENUM or *ADDR, where ADDR is an expression\n\ |
1bedd215 | 2892 | for an address to start at.")); |
5ba2abeb | 2893 | set_cmd_completer (c, location_completer); |
c906108c | 2894 | |
b83266a0 | 2895 | if (xdb_commands) |
c94fdfd0 | 2896 | { |
1bedd215 AC |
2897 | c = add_com ("go", class_run, go_command, _("\ |
2898 | Usage: go <location>\n\ | |
c906108c SS |
2899 | Continue program being debugged, stopping at specified line or \n\ |
2900 | address.\n\ | |
2901 | Give as argument either LINENUM or *ADDR, where ADDR is an \n\ | |
2902 | expression for an address to start at.\n\ | |
1bedd215 | 2903 | This command is a combination of tbreak and jump.")); |
5ba2abeb | 2904 | set_cmd_completer (c, location_completer); |
c94fdfd0 | 2905 | } |
b83266a0 | 2906 | |
c906108c | 2907 | if (xdb_commands) |
c5aa993b | 2908 | add_com_alias ("g", "go", class_run, 1); |
c906108c | 2909 | |
8cae4b3f | 2910 | c = add_com ("continue", class_run, continue_command, _("\ |
1bedd215 | 2911 | Continue program being debugged, after signal or breakpoint.\n\ |
c906108c SS |
2912 | If proceeding from breakpoint, a number N may be used as an argument,\n\ |
2913 | which means to set the ignore count of that breakpoint to N - 1 (so that\n\ | |
8cae4b3f PA |
2914 | the breakpoint won't break until the Nth time it is reached).\n\ |
2915 | \n\ | |
2916 | If non-stop mode is enabled, continue only the current thread,\n\ | |
2917 | otherwise all the threads in the program are continued. To \n\ | |
2918 | continue all stopped threads in non-stop mode, use the -a option.\n\ | |
2919 | Specifying -a and an ignore count simultaneously is an error.")); | |
c906108c SS |
2920 | add_com_alias ("c", "cont", class_run, 1); |
2921 | add_com_alias ("fg", "cont", class_run, 1); | |
2922 | ||
1bedd215 AC |
2923 | c = add_com ("run", class_run, run_command, _("\ |
2924 | Start debugged program. You may specify arguments to give it.\n\ | |
c906108c | 2925 | Args may include \"*\", or \"[...]\"; they are expanded using \"sh\".\n\ |
3e43a32a MS |
2926 | Input and output redirection with \">\", \"<\", or \">>\" are also \ |
2927 | allowed.\n\n\ | |
2928 | With no arguments, uses arguments last specified (with \"run\" \ | |
2929 | or \"set args\").\n\ | |
c906108c | 2930 | To cancel previous arguments and run with no arguments,\n\ |
1bedd215 | 2931 | use \"set args\" without arguments.")); |
5ba2abeb | 2932 | set_cmd_completer (c, filename_completer); |
c906108c SS |
2933 | add_com_alias ("r", "run", class_run, 1); |
2934 | if (xdb_commands) | |
2935 | add_com ("R", class_run, run_no_args_command, | |
1bedd215 | 2936 | _("Start debugged program with no arguments.")); |
c906108c | 2937 | |
1bedd215 | 2938 | c = add_com ("start", class_run, start_command, _("\ |
a4d5f2e0 JB |
2939 | Run the debugged program until the beginning of the main procedure.\n\ |
2940 | You may specify arguments to give to your program, just as with the\n\ | |
1bedd215 | 2941 | \"run\" command.")); |
a4d5f2e0 JB |
2942 | set_cmd_completer (c, filename_completer); |
2943 | ||
700b53b1 | 2944 | c = add_com ("interrupt", class_run, interrupt_target_command, |
8cae4b3f PA |
2945 | _("Interrupt the execution of the debugged program.\n\ |
2946 | If non-stop mode is enabled, interrupt only the current thread,\n\ | |
2947 | otherwise all the threads in the program are stopped. To \n\ | |
2948 | interrupt all running threads in non-stop mode, use the -a option.")); | |
43ff13b4 | 2949 | |
1bedd215 AC |
2950 | add_info ("registers", nofp_registers_info, _("\ |
2951 | List of integer registers and their contents, for selected stack frame.\n\ | |
2952 | Register name as argument means describe only that register.")); | |
7194c49b | 2953 | add_info_alias ("r", "registers", 1); |
c906108c SS |
2954 | |
2955 | if (xdb_commands) | |
1bedd215 AC |
2956 | add_com ("lr", class_info, nofp_registers_info, _("\ |
2957 | List of integer registers and their contents, for selected stack frame.\n\ | |
2958 | Register name as argument means describe only that register.")); | |
2959 | add_info ("all-registers", all_registers_info, _("\ | |
2960 | List of all registers and their contents, for selected stack frame.\n\ | |
2961 | Register name as argument means describe only that register.")); | |
c906108c SS |
2962 | |
2963 | add_info ("program", program_info, | |
1bedd215 | 2964 | _("Execution status of the program.")); |
c906108c SS |
2965 | |
2966 | add_info ("float", float_info, | |
1bedd215 | 2967 | _("Print the status of the floating point unit\n")); |
c906108c | 2968 | |
e76f1f2e | 2969 | add_info ("vector", vector_info, |
1bedd215 | 2970 | _("Print the status of the vector unit\n")); |
c906108c | 2971 | } |