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, |
4c38e0a4 | 5 | 2008, 2009, 2010 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 *); |
611c83ae | 109 | static void step_once (int skip_subroutines, int single_inst, int count, int thread); |
c906108c | 110 | |
a14ed312 | 111 | static void next_command (char *, int); |
c906108c | 112 | |
a14ed312 | 113 | static void step_command (char *, int); |
c906108c | 114 | |
a14ed312 | 115 | static void run_command (char *, int); |
c906108c | 116 | |
a14ed312 | 117 | static void run_no_args_command (char *args, int from_tty); |
392a587b | 118 | |
a14ed312 | 119 | static void go_command (char *line_no, int from_tty); |
392a587b | 120 | |
a14ed312 | 121 | static int strip_bg_char (char **); |
43ff13b4 | 122 | |
a14ed312 | 123 | void _initialize_infcmd (void); |
c906108c | 124 | |
c906108c | 125 | #define ERROR_NO_INFERIOR \ |
8a3fe4f8 | 126 | if (!target_has_execution) error (_("The program is not being run.")); |
c906108c | 127 | |
3f81c18a VP |
128 | /* Scratch area where string containing arguments to give to the program will be |
129 | stored by 'set args'. As soon as anything is stored, notice_args_set will | |
130 | move it into per-inferior storage. Arguments are separated by spaces. Empty | |
131 | string (pointer to '\0') means no args. */ | |
c906108c | 132 | |
3f81c18a | 133 | static char *inferior_args_scratch; |
c906108c | 134 | |
3f81c18a VP |
135 | /* Scratch area where 'set inferior-tty' will store user-provided value. |
136 | We'll immediate copy it into per-inferior storage. */ | |
552c04a7 | 137 | |
3f81c18a | 138 | static char *inferior_io_terminal_scratch; |
c906108c SS |
139 | |
140 | /* Pid of our debugged inferior, or 0 if no inferior now. | |
141 | Since various parts of infrun.c test this to see whether there is a program | |
142 | being debugged it should be nonzero (currently 3 is used) for remote | |
143 | debugging. */ | |
144 | ||
39f77062 | 145 | ptid_t inferior_ptid; |
c906108c | 146 | |
c906108c SS |
147 | /* Address at which inferior stopped. */ |
148 | ||
149 | CORE_ADDR stop_pc; | |
150 | ||
c906108c SS |
151 | /* Flag indicating that a command has proceeded the inferior past the |
152 | current breakpoint. */ | |
153 | ||
154 | int breakpoint_proceeded; | |
155 | ||
c906108c SS |
156 | /* Nonzero if stopped due to completion of a stack dummy routine. */ |
157 | ||
aa7d318d | 158 | enum stop_stack_kind stop_stack_dummy; |
c906108c SS |
159 | |
160 | /* Nonzero if stopped due to a random (unexpected) signal in inferior | |
161 | process. */ | |
162 | ||
163 | int stopped_by_random_signal; | |
164 | ||
c906108c | 165 | \f |
07091751 FN |
166 | /* Accessor routines. */ |
167 | ||
3f81c18a VP |
168 | /* Set the io terminal for the current inferior. Ownership of |
169 | TERMINAL_NAME is not transferred. */ | |
170 | ||
3cb3b8df BR |
171 | void |
172 | set_inferior_io_terminal (const char *terminal_name) | |
173 | { | |
3f81c18a VP |
174 | xfree (current_inferior ()->terminal); |
175 | current_inferior ()->terminal = terminal_name ? xstrdup (terminal_name) : 0; | |
3cb3b8df BR |
176 | } |
177 | ||
178 | const char * | |
179 | get_inferior_io_terminal (void) | |
180 | { | |
3f81c18a VP |
181 | return current_inferior ()->terminal; |
182 | } | |
183 | ||
184 | static void | |
185 | set_inferior_tty_command (char *args, int from_tty, | |
186 | struct cmd_list_element *c) | |
187 | { | |
188 | /* CLI has assigned the user-provided value to inferior_io_terminal_scratch. | |
189 | Now route it to current inferior. */ | |
190 | set_inferior_io_terminal (inferior_io_terminal_scratch); | |
191 | } | |
192 | ||
193 | static void | |
194 | show_inferior_tty_command (struct ui_file *file, int from_tty, | |
195 | struct cmd_list_element *c, const char *value) | |
196 | { | |
197 | /* Note that we ignore the passed-in value in favor of computing it | |
198 | directly. */ | |
275f2e57 | 199 | const char *inferior_io_terminal = get_inferior_io_terminal (); |
abbb1732 | 200 | |
275f2e57 DJ |
201 | if (inferior_io_terminal == NULL) |
202 | inferior_io_terminal = ""; | |
3f81c18a | 203 | fprintf_filtered (gdb_stdout, |
275f2e57 DJ |
204 | _("Terminal for future runs of program being debugged " |
205 | "is \"%s\".\n"), inferior_io_terminal); | |
3cb3b8df BR |
206 | } |
207 | ||
07091751 FN |
208 | char * |
209 | get_inferior_args (void) | |
210 | { | |
3f81c18a | 211 | if (current_inferior ()->argc != 0) |
552c04a7 | 212 | { |
3f81c18a | 213 | char *n; |
552c04a7 | 214 | |
3f81c18a VP |
215 | n = construct_inferior_arguments (current_inferior ()->argc, |
216 | current_inferior ()->argv); | |
217 | set_inferior_args (n); | |
218 | xfree (n); | |
552c04a7 TT |
219 | } |
220 | ||
3f81c18a VP |
221 | if (current_inferior ()->args == NULL) |
222 | current_inferior ()->args = xstrdup (""); | |
552c04a7 | 223 | |
3f81c18a | 224 | return current_inferior ()->args; |
07091751 FN |
225 | } |
226 | ||
3f81c18a VP |
227 | /* Set the arguments for the current inferior. Ownership of |
228 | NEWARGS is not transferred. */ | |
229 | ||
230 | void | |
07091751 FN |
231 | set_inferior_args (char *newargs) |
232 | { | |
3f81c18a VP |
233 | xfree (current_inferior ()->args); |
234 | current_inferior ()->args = newargs ? xstrdup (newargs) : NULL; | |
235 | current_inferior ()->argc = 0; | |
236 | current_inferior ()->argv = 0; | |
07091751 | 237 | } |
c5aa993b | 238 | |
552c04a7 TT |
239 | void |
240 | set_inferior_args_vector (int argc, char **argv) | |
241 | { | |
3f81c18a VP |
242 | current_inferior ()->argc = argc; |
243 | current_inferior ()->argv = argv; | |
552c04a7 TT |
244 | } |
245 | ||
246 | /* Notice when `set args' is run. */ | |
247 | static void | |
3f81c18a | 248 | set_args_command (char *args, int from_tty, struct cmd_list_element *c) |
552c04a7 | 249 | { |
3f81c18a VP |
250 | /* CLI has assigned the user-provided value to inferior_args_scratch. |
251 | Now route it to current inferior. */ | |
252 | set_inferior_args (inferior_args_scratch); | |
552c04a7 TT |
253 | } |
254 | ||
255 | /* Notice when `show args' is run. */ | |
256 | static void | |
3f81c18a VP |
257 | show_args_command (struct ui_file *file, int from_tty, |
258 | struct cmd_list_element *c, const char *value) | |
552c04a7 | 259 | { |
258c00cc TT |
260 | /* Note that we ignore the passed-in value in favor of computing it |
261 | directly. */ | |
262 | deprecated_show_value_hack (file, from_tty, c, get_inferior_args ()); | |
552c04a7 TT |
263 | } |
264 | ||
c2a727fa TT |
265 | \f |
266 | /* Compute command-line string given argument vector. This does the | |
267 | same shell processing as fork_inferior. */ | |
c2a727fa | 268 | char * |
bd57a748 | 269 | construct_inferior_arguments (int argc, char **argv) |
c2a727fa TT |
270 | { |
271 | char *result; | |
272 | ||
273 | if (STARTUP_WITH_SHELL) | |
274 | { | |
275 | /* This holds all the characters considered special to the | |
276 | typical Unix shells. We include `^' because the SunOS | |
277 | /bin/sh treats it as a synonym for `|'. */ | |
278 | char *special = "\"!#$&*()\\|[]{}<>?'\"`~^; \t\n"; | |
279 | int i; | |
280 | int length = 0; | |
281 | char *out, *cp; | |
282 | ||
283 | /* We over-compute the size. It shouldn't matter. */ | |
284 | for (i = 0; i < argc; ++i) | |
c2226152 | 285 | length += 3 * strlen (argv[i]) + 1 + 2 * (argv[i][0] == '\0'); |
c2a727fa TT |
286 | |
287 | result = (char *) xmalloc (length); | |
288 | out = result; | |
289 | ||
290 | for (i = 0; i < argc; ++i) | |
291 | { | |
292 | if (i > 0) | |
293 | *out++ = ' '; | |
294 | ||
03c6228e AS |
295 | /* Need to handle empty arguments specially. */ |
296 | if (argv[i][0] == '\0') | |
c2a727fa | 297 | { |
03c6228e AS |
298 | *out++ = '\''; |
299 | *out++ = '\''; | |
300 | } | |
301 | else | |
302 | { | |
303 | for (cp = argv[i]; *cp; ++cp) | |
304 | { | |
c2226152 AS |
305 | if (*cp == '\n') |
306 | { | |
307 | /* A newline cannot be quoted with a backslash (it | |
308 | just disappears), only by putting it inside | |
309 | quotes. */ | |
310 | *out++ = '\''; | |
311 | *out++ = '\n'; | |
312 | *out++ = '\''; | |
313 | } | |
314 | else | |
315 | { | |
316 | if (strchr (special, *cp) != NULL) | |
317 | *out++ = '\\'; | |
318 | *out++ = *cp; | |
319 | } | |
03c6228e | 320 | } |
c2a727fa TT |
321 | } |
322 | } | |
323 | *out = '\0'; | |
324 | } | |
325 | else | |
326 | { | |
327 | /* In this case we can't handle arguments that contain spaces, | |
328 | tabs, or newlines -- see breakup_args(). */ | |
329 | int i; | |
330 | int length = 0; | |
331 | ||
332 | for (i = 0; i < argc; ++i) | |
333 | { | |
334 | char *cp = strchr (argv[i], ' '); | |
335 | if (cp == NULL) | |
336 | cp = strchr (argv[i], '\t'); | |
337 | if (cp == NULL) | |
338 | cp = strchr (argv[i], '\n'); | |
339 | if (cp != NULL) | |
8a3fe4f8 | 340 | error (_("can't handle command-line argument containing whitespace")); |
c2a727fa TT |
341 | length += strlen (argv[i]) + 1; |
342 | } | |
343 | ||
344 | result = (char *) xmalloc (length); | |
345 | result[0] = '\0'; | |
346 | for (i = 0; i < argc; ++i) | |
347 | { | |
348 | if (i > 0) | |
349 | strcat (result, " "); | |
350 | strcat (result, argv[i]); | |
351 | } | |
352 | } | |
353 | ||
354 | return result; | |
355 | } | |
552c04a7 TT |
356 | \f |
357 | ||
43ff13b4 JM |
358 | /* This function detects whether or not a '&' character (indicating |
359 | background execution) has been added as *the last* of the arguments ARGS | |
360 | of a command. If it has, it removes it and returns 1. Otherwise it | |
361 | does nothing and returns 0. */ | |
c5aa993b | 362 | static int |
fba45db2 | 363 | strip_bg_char (char **args) |
43ff13b4 JM |
364 | { |
365 | char *p = NULL; | |
c5aa993b | 366 | |
9846de1b | 367 | p = strchr (*args, '&'); |
c5aa993b | 368 | |
9846de1b | 369 | if (p) |
43ff13b4 JM |
370 | { |
371 | if (p == (*args + strlen (*args) - 1)) | |
372 | { | |
c5aa993b | 373 | if (strlen (*args) > 1) |
43ff13b4 JM |
374 | { |
375 | do | |
376 | p--; | |
377 | while (*p == ' ' || *p == '\t'); | |
378 | *(p + 1) = '\0'; | |
379 | } | |
380 | else | |
381 | *args = 0; | |
382 | return 1; | |
383 | } | |
384 | } | |
385 | return 0; | |
386 | } | |
387 | ||
281b533b DJ |
388 | /* Common actions to take after creating any sort of inferior, by any |
389 | means (running, attaching, connecting, et cetera). The target | |
390 | should be stopped. */ | |
391 | ||
392 | void | |
393 | post_create_inferior (struct target_ops *target, int from_tty) | |
394 | { | |
b79599ff DP |
395 | /* Be sure we own the terminal in case write operations are performed. */ |
396 | target_terminal_ours (); | |
397 | ||
424163ea DJ |
398 | /* If the target hasn't taken care of this already, do it now. |
399 | Targets which need to access registers during to_open, | |
400 | to_create_inferior, or to_attach should do it earlier; but many | |
401 | don't need to. */ | |
402 | target_find_description (); | |
403 | ||
f698437e | 404 | /* Now that we know the register layout, retrieve current PC. */ |
fb14de7b | 405 | stop_pc = regcache_read_pc (get_current_regcache ()); |
f698437e | 406 | |
50c71eaf PA |
407 | if (exec_bfd) |
408 | { | |
9353355f DJ |
409 | /* Create the hooks to handle shared library load and unload |
410 | events. */ | |
411 | #ifdef SOLIB_CREATE_INFERIOR_HOOK | |
37706b70 | 412 | SOLIB_CREATE_INFERIOR_HOOK (PIDGET (inferior_ptid)); |
9353355f | 413 | #else |
268a4a75 JK |
414 | solib_create_inferior_hook (from_tty); |
415 | #endif | |
416 | } | |
417 | ||
418 | /* If the solist is global across processes, there's no need to | |
419 | refetch it here. */ | |
420 | if (exec_bfd && !gdbarch_has_global_solist (target_gdbarch)) | |
421 | { | |
422 | /* Sometimes the platform-specific hook loads initial shared | |
423 | libraries, and sometimes it doesn't. If it doesn't FROM_TTY will be | |
424 | incorrectly 0 but such solib targets should be fixed anyway. If we | |
425 | made all the inferior hook methods consistent, this call could be | |
426 | removed. Call it only after the solib target has been initialized by | |
427 | solib_create_inferior_hook. */ | |
428 | ||
429 | #ifdef SOLIB_ADD | |
430 | SOLIB_ADD (NULL, 0, target, auto_solib_add); | |
431 | #else | |
432 | solib_add (NULL, 0, target, auto_solib_add); | |
9353355f | 433 | #endif |
9353355f DJ |
434 | } |
435 | ||
ea5d7a99 PM |
436 | /* If the user sets watchpoints before execution having started, |
437 | then she gets software watchpoints, because GDB can't know which | |
438 | target will end up being pushed, or if it supports hardware | |
439 | watchpoints or not. breakpoint_re_set takes care of promoting | |
440 | watchpoints to hardware watchpoints if possible, however, if this | |
441 | new inferior doesn't load shared libraries or we don't pull in | |
442 | symbols from any other source on this target/arch, | |
443 | breakpoint_re_set is never called. Call it now so that software | |
444 | watchpoints get a chance to be promoted to hardware watchpoints | |
445 | if the now pushed target supports hardware watchpoints. */ | |
446 | breakpoint_re_set (); | |
447 | ||
281b533b DJ |
448 | observer_notify_inferior_created (target, from_tty); |
449 | } | |
450 | ||
a4d5f2e0 JB |
451 | /* Kill the inferior if already running. This function is designed |
452 | to be called when we are about to start the execution of the program | |
453 | from the beginning. Ask the user to confirm that he wants to restart | |
454 | the program being debugged when FROM_TTY is non-null. */ | |
c906108c | 455 | |
8edfe269 | 456 | static void |
a4d5f2e0 JB |
457 | kill_if_already_running (int from_tty) |
458 | { | |
39f77062 | 459 | if (! ptid_equal (inferior_ptid, null_ptid) && target_has_execution) |
c906108c | 460 | { |
8edfe269 DJ |
461 | /* Bail out before killing the program if we will not be able to |
462 | restart it. */ | |
463 | target_require_runnable (); | |
464 | ||
adf40b2e | 465 | if (from_tty |
9e2f0ad4 HZ |
466 | && !query (_("The program being debugged has been started already.\n\ |
467 | Start it from the beginning? "))) | |
8a3fe4f8 | 468 | error (_("Program not restarted.")); |
c906108c | 469 | target_kill (); |
c906108c | 470 | } |
a4d5f2e0 JB |
471 | } |
472 | ||
f67a969f JB |
473 | /* Implement the "run" command. If TBREAK_AT_MAIN is set, then insert |
474 | a temporary breakpoint at the begining of the main program before | |
475 | running the program. */ | |
476 | ||
a4d5f2e0 | 477 | static void |
f67a969f | 478 | run_command_1 (char *args, int from_tty, int tbreak_at_main) |
a4d5f2e0 JB |
479 | { |
480 | char *exec_file; | |
29f49a6a PA |
481 | struct cleanup *old_chain; |
482 | ptid_t ptid; | |
c906108c | 483 | |
a4d5f2e0 JB |
484 | dont_repeat (); |
485 | ||
486 | kill_if_already_running (from_tty); | |
3c35e65b UW |
487 | |
488 | init_wait_for_inferior (); | |
c906108c SS |
489 | clear_breakpoint_hit_counts (); |
490 | ||
fd79ecee DJ |
491 | /* Clean up any leftovers from other runs. Some other things from |
492 | this function should probably be moved into target_pre_inferior. */ | |
493 | target_pre_inferior (from_tty); | |
494 | ||
39ad761d JB |
495 | /* The comment here used to read, "The exec file is re-read every |
496 | time we do a generic_mourn_inferior, so we just have to worry | |
497 | about the symbol file." The `generic_mourn_inferior' function | |
498 | gets called whenever the program exits. However, suppose the | |
499 | program exits, and *then* the executable file changes? We need | |
500 | to check again here. Since reopen_exec_file doesn't do anything | |
501 | if the timestamp hasn't changed, I don't see the harm. */ | |
502 | reopen_exec_file (); | |
c906108c SS |
503 | reread_symbols (); |
504 | ||
f67a969f JB |
505 | /* Insert the temporary breakpoint if a location was specified. */ |
506 | if (tbreak_at_main) | |
507 | tbreak_command (main_name (), 0); | |
508 | ||
39ad761d JB |
509 | exec_file = (char *) get_exec_file (0); |
510 | ||
9908b566 VP |
511 | if (non_stop && !target_supports_non_stop ()) |
512 | error (_("The target does not support running in non-stop mode.")); | |
513 | ||
c906108c SS |
514 | /* We keep symbols from add-symbol-file, on the grounds that the |
515 | user might want to add some symbols before running the program | |
516 | (right?). But sometimes (dynamic loading where the user manually | |
517 | introduces the new symbols with add-symbol-file), the code which | |
518 | the symbols describe does not persist between runs. Currently | |
519 | the user has to manually nuke all symbols between runs if they | |
520 | want them to go away (PR 2207). This is probably reasonable. */ | |
521 | ||
43ff13b4 | 522 | if (!args) |
6426a772 | 523 | { |
362646f5 | 524 | if (target_can_async_p ()) |
6426a772 JM |
525 | async_disable_stdin (); |
526 | } | |
43ff13b4 | 527 | else |
c906108c | 528 | { |
43ff13b4 JM |
529 | int async_exec = strip_bg_char (&args); |
530 | ||
531 | /* If we get a request for running in the bg but the target | |
532 | doesn't support it, error out. */ | |
362646f5 | 533 | if (async_exec && !target_can_async_p ()) |
8a3fe4f8 | 534 | error (_("Asynchronous execution not supported on this target.")); |
43ff13b4 JM |
535 | |
536 | /* If we don't get a request of running in the bg, then we need | |
c5aa993b | 537 | to simulate synchronous (fg) execution. */ |
362646f5 | 538 | if (!async_exec && target_can_async_p ()) |
43ff13b4 JM |
539 | { |
540 | /* Simulate synchronous execution */ | |
6426a772 | 541 | async_disable_stdin (); |
43ff13b4 JM |
542 | } |
543 | ||
544 | /* If there were other args, beside '&', process them. */ | |
545 | if (args) | |
3f81c18a | 546 | set_inferior_args (args); |
c906108c SS |
547 | } |
548 | ||
549 | if (from_tty) | |
550 | { | |
8b93c638 JM |
551 | ui_out_field_string (uiout, NULL, "Starting program"); |
552 | ui_out_text (uiout, ": "); | |
553 | if (exec_file) | |
554 | ui_out_field_string (uiout, "execfile", exec_file); | |
555 | ui_out_spaces (uiout, 1); | |
552c04a7 TT |
556 | /* We call get_inferior_args() because we might need to compute |
557 | the value now. */ | |
558 | ui_out_field_string (uiout, "infargs", get_inferior_args ()); | |
8b93c638 JM |
559 | ui_out_text (uiout, "\n"); |
560 | ui_out_flush (uiout); | |
c906108c SS |
561 | } |
562 | ||
552c04a7 TT |
563 | /* We call get_inferior_args() because we might need to compute |
564 | the value now. */ | |
565 | target_create_inferior (exec_file, get_inferior_args (), | |
3f81c18a | 566 | environ_vector (current_inferior ()->environment), from_tty); |
281b533b | 567 | |
29f49a6a PA |
568 | /* We're starting off a new process. When we get out of here, in |
569 | non-stop mode, finish the state of all threads of that process, | |
570 | but leave other threads alone, as they may be stopped in internal | |
571 | events --- the frontend shouldn't see them as stopped. In | |
572 | all-stop, always finish the state of all threads, as we may be | |
573 | resuming more than just the new process. */ | |
574 | if (non_stop) | |
575 | ptid = pid_to_ptid (ptid_get_pid (inferior_ptid)); | |
576 | else | |
577 | ptid = minus_one_ptid; | |
578 | old_chain = make_cleanup (finish_thread_state_cleanup, &ptid); | |
579 | ||
de1b3c3d PA |
580 | /* Pass zero for FROM_TTY, because at this point the "run" command |
581 | has done its thing; now we are setting up the running program. */ | |
582 | post_create_inferior (¤t_target, 0); | |
281b533b | 583 | |
74d1f91e JK |
584 | /* Start the target running. Do not use -1 continuation as it would skip |
585 | breakpoint right at the entry point. */ | |
586 | proceed (regcache_read_pc (get_current_regcache ()), TARGET_SIGNAL_0, 0); | |
c906108c | 587 | |
29f49a6a PA |
588 | /* Since there was no error, there's no need to finish the thread |
589 | states here. */ | |
590 | discard_cleanups (old_chain); | |
591 | } | |
c906108c | 592 | |
f67a969f JB |
593 | static void |
594 | run_command (char *args, int from_tty) | |
595 | { | |
596 | run_command_1 (args, from_tty, 0); | |
597 | } | |
598 | ||
c906108c | 599 | static void |
fba45db2 | 600 | run_no_args_command (char *args, int from_tty) |
c906108c | 601 | { |
3f81c18a | 602 | set_inferior_args (""); |
c906108c | 603 | } |
c906108c | 604 | \f |
c5aa993b | 605 | |
a4d5f2e0 JB |
606 | /* Start the execution of the program up until the beginning of the main |
607 | program. */ | |
608 | ||
609 | static void | |
610 | start_command (char *args, int from_tty) | |
611 | { | |
612 | /* Some languages such as Ada need to search inside the program | |
613 | minimal symbols for the location where to put the temporary | |
614 | breakpoint before starting. */ | |
615 | if (!have_minimal_symbols ()) | |
8a3fe4f8 | 616 | error (_("No symbol table loaded. Use the \"file\" command.")); |
a4d5f2e0 | 617 | |
f67a969f JB |
618 | /* Run the program until reaching the main procedure... */ |
619 | run_command_1 (args, from_tty, 1); | |
a4d5f2e0 JB |
620 | } |
621 | ||
8cae4b3f PA |
622 | static int |
623 | proceed_thread_callback (struct thread_info *thread, void *arg) | |
624 | { | |
74531fed PA |
625 | /* We go through all threads individually instead of compressing |
626 | into a single target `resume_all' request, because some threads | |
627 | may be stopped in internal breakpoints/events, or stopped waiting | |
628 | for its turn in the displaced stepping queue (that is, they are | |
629 | running && !executing). The target side has no idea about why | |
630 | the thread is stopped, so a `resume_all' command would resume too | |
631 | much. If/when GDB gains a way to tell the target `hold this | |
632 | thread stopped until I say otherwise', then we can optimize | |
633 | this. */ | |
4f8d22e3 | 634 | if (!is_stopped (thread->ptid)) |
8cae4b3f PA |
635 | return 0; |
636 | ||
dcf4fbde | 637 | switch_to_thread (thread->ptid); |
8cae4b3f PA |
638 | clear_proceed_status (); |
639 | proceed ((CORE_ADDR) -1, TARGET_SIGNAL_DEFAULT, 0); | |
640 | return 0; | |
641 | } | |
642 | ||
d729566a PA |
643 | void |
644 | ensure_valid_thread (void) | |
645 | { | |
646 | if (ptid_equal (inferior_ptid, null_ptid) | |
647 | || is_exited (inferior_ptid)) | |
648 | error (_("\ | |
649 | Cannot execute this command without a live selected thread.")); | |
650 | } | |
651 | ||
573cda03 SS |
652 | /* If the user is looking at trace frames, any resumption of execution |
653 | is likely to mix up recorded and live target data. So simply | |
654 | disallow those commands. */ | |
655 | ||
656 | void | |
657 | ensure_not_tfind_mode (void) | |
658 | { | |
659 | if (get_traceframe_number () >= 0) | |
660 | error (_("\ | |
661 | Cannot execute this command while looking at trace frames.")); | |
662 | } | |
663 | ||
77ebaa5a VP |
664 | void |
665 | continue_1 (int all_threads) | |
666 | { | |
3d488bfc | 667 | ERROR_NO_INFERIOR; |
573cda03 | 668 | ensure_not_tfind_mode (); |
3d488bfc | 669 | |
77ebaa5a VP |
670 | if (non_stop && all_threads) |
671 | { | |
672 | /* Don't error out if the current thread is running, because | |
abbb1732 | 673 | there may be other stopped threads. */ |
77ebaa5a VP |
674 | struct cleanup *old_chain; |
675 | ||
676 | /* Backup current thread and selected frame. */ | |
677 | old_chain = make_cleanup_restore_current_thread (); | |
678 | ||
679 | iterate_over_threads (proceed_thread_callback, NULL); | |
680 | ||
681 | /* Restore selected ptid. */ | |
682 | do_cleanups (old_chain); | |
683 | } | |
684 | else | |
685 | { | |
d729566a | 686 | ensure_valid_thread (); |
77ebaa5a VP |
687 | ensure_not_running (); |
688 | clear_proceed_status (); | |
689 | proceed ((CORE_ADDR) -1, TARGET_SIGNAL_DEFAULT, 0); | |
690 | } | |
691 | } | |
692 | ||
8cae4b3f | 693 | /* continue [-a] [proceed-count] [&] */ |
c906108c | 694 | void |
8cae4b3f | 695 | continue_command (char *args, int from_tty) |
c906108c | 696 | { |
c5aa993b | 697 | int async_exec = 0; |
8cae4b3f | 698 | int all_threads = 0; |
c906108c SS |
699 | ERROR_NO_INFERIOR; |
700 | ||
43ff13b4 | 701 | /* Find out whether we must run in the background. */ |
8cae4b3f PA |
702 | if (args != NULL) |
703 | async_exec = strip_bg_char (&args); | |
43ff13b4 JM |
704 | |
705 | /* If we must run in the background, but the target can't do it, | |
706 | error out. */ | |
362646f5 | 707 | if (async_exec && !target_can_async_p ()) |
8a3fe4f8 | 708 | error (_("Asynchronous execution not supported on this target.")); |
43ff13b4 JM |
709 | |
710 | /* If we are not asked to run in the bg, then prepare to run in the | |
711 | foreground, synchronously. */ | |
362646f5 | 712 | if (!async_exec && target_can_async_p ()) |
c5aa993b | 713 | { |
43ff13b4 | 714 | /* Simulate synchronous execution */ |
6426a772 | 715 | async_disable_stdin (); |
43ff13b4 | 716 | } |
c906108c | 717 | |
8cae4b3f PA |
718 | if (args != NULL) |
719 | { | |
720 | if (strncmp (args, "-a", sizeof ("-a") - 1) == 0) | |
721 | { | |
722 | all_threads = 1; | |
723 | args += sizeof ("-a") - 1; | |
724 | if (*args == '\0') | |
725 | args = NULL; | |
726 | } | |
727 | } | |
728 | ||
729 | if (!non_stop && all_threads) | |
730 | error (_("`-a' is meaningless in all-stop mode.")); | |
731 | ||
732 | if (args != NULL && all_threads) | |
733 | error (_("\ | |
734 | Can't resume all threads and specify proceed count simultaneously.")); | |
735 | ||
736 | /* If we have an argument left, set proceed count of breakpoint we | |
737 | stopped at. */ | |
738 | if (args != NULL) | |
c906108c | 739 | { |
347bddb7 | 740 | bpstat bs = NULL; |
8671a17b PA |
741 | int num, stat; |
742 | int stopped = 0; | |
347bddb7 PA |
743 | struct thread_info *tp; |
744 | ||
745 | if (non_stop) | |
e09875d4 | 746 | tp = find_thread_ptid (inferior_ptid); |
347bddb7 PA |
747 | else |
748 | { | |
749 | ptid_t last_ptid; | |
750 | struct target_waitstatus ws; | |
751 | ||
752 | get_last_target_status (&last_ptid, &ws); | |
e09875d4 | 753 | tp = find_thread_ptid (last_ptid); |
347bddb7 PA |
754 | } |
755 | if (tp != NULL) | |
16c381f0 | 756 | bs = tp->control.stop_bpstat; |
8671a17b PA |
757 | |
758 | while ((stat = bpstat_num (&bs, &num)) != 0) | |
759 | if (stat > 0) | |
760 | { | |
761 | set_ignore_count (num, | |
8cae4b3f | 762 | parse_and_eval_long (args) - 1, |
8671a17b PA |
763 | from_tty); |
764 | /* set_ignore_count prints a message ending with a period. | |
765 | So print two spaces before "Continuing.". */ | |
766 | if (from_tty) | |
767 | printf_filtered (" "); | |
768 | stopped = 1; | |
769 | } | |
770 | ||
771 | if (!stopped && from_tty) | |
c906108c SS |
772 | { |
773 | printf_filtered | |
774 | ("Not stopped at any breakpoint; argument ignored.\n"); | |
775 | } | |
c906108c SS |
776 | } |
777 | ||
778 | if (from_tty) | |
a3f17187 | 779 | printf_filtered (_("Continuing.\n")); |
c906108c | 780 | |
77ebaa5a | 781 | continue_1 (all_threads); |
c906108c SS |
782 | } |
783 | \f | |
edb3359d DJ |
784 | /* Record the starting point of a "step" or "next" command. */ |
785 | ||
786 | static void | |
787 | set_step_frame (void) | |
788 | { | |
789 | struct symtab_and_line sal; | |
790 | ||
791 | find_frame_sal (get_current_frame (), &sal); | |
792 | set_step_info (get_current_frame (), sal); | |
793 | } | |
794 | ||
c906108c SS |
795 | /* Step until outside of current statement. */ |
796 | ||
c906108c | 797 | static void |
fba45db2 | 798 | step_command (char *count_string, int from_tty) |
c906108c SS |
799 | { |
800 | step_1 (0, 0, count_string); | |
801 | } | |
802 | ||
803 | /* Likewise, but skip over subroutine calls as if single instructions. */ | |
804 | ||
c906108c | 805 | static void |
fba45db2 | 806 | next_command (char *count_string, int from_tty) |
c906108c SS |
807 | { |
808 | step_1 (1, 0, count_string); | |
809 | } | |
810 | ||
811 | /* Likewise, but step only one instruction. */ | |
812 | ||
c906108c | 813 | void |
fba45db2 | 814 | stepi_command (char *count_string, int from_tty) |
c906108c SS |
815 | { |
816 | step_1 (0, 1, count_string); | |
817 | } | |
818 | ||
c906108c | 819 | void |
fba45db2 | 820 | nexti_command (char *count_string, int from_tty) |
c906108c SS |
821 | { |
822 | step_1 (1, 1, count_string); | |
823 | } | |
824 | ||
74b7792f | 825 | static void |
611c83ae | 826 | delete_longjmp_breakpoint_cleanup (void *arg) |
74b7792f | 827 | { |
611c83ae PA |
828 | int thread = * (int *) arg; |
829 | delete_longjmp_breakpoint (thread); | |
74b7792f AC |
830 | } |
831 | ||
c906108c | 832 | static void |
fba45db2 | 833 | step_1 (int skip_subroutines, int single_inst, char *count_string) |
c906108c | 834 | { |
52f0bd74 | 835 | int count = 1; |
f107f563 | 836 | struct cleanup *cleanups = make_cleanup (null_cleanup, NULL); |
43ff13b4 | 837 | int async_exec = 0; |
b3dc826b | 838 | int thread = -1; |
c5aa993b | 839 | |
c906108c | 840 | ERROR_NO_INFERIOR; |
573cda03 | 841 | ensure_not_tfind_mode (); |
d729566a | 842 | ensure_valid_thread (); |
94cc34af | 843 | ensure_not_running (); |
43ff13b4 JM |
844 | |
845 | if (count_string) | |
846 | async_exec = strip_bg_char (&count_string); | |
c5aa993b | 847 | |
43ff13b4 JM |
848 | /* If we get a request for running in the bg but the target |
849 | doesn't support it, error out. */ | |
362646f5 | 850 | if (async_exec && !target_can_async_p ()) |
8a3fe4f8 | 851 | error (_("Asynchronous execution not supported on this target.")); |
43ff13b4 JM |
852 | |
853 | /* If we don't get a request of running in the bg, then we need | |
854 | to simulate synchronous (fg) execution. */ | |
362646f5 | 855 | if (!async_exec && target_can_async_p ()) |
43ff13b4 JM |
856 | { |
857 | /* Simulate synchronous execution */ | |
6426a772 | 858 | async_disable_stdin (); |
43ff13b4 JM |
859 | } |
860 | ||
bb518678 | 861 | count = count_string ? parse_and_eval_long (count_string) : 1; |
c906108c | 862 | |
c5aa993b | 863 | if (!single_inst || skip_subroutines) /* leave si command alone */ |
c906108c | 864 | { |
611c83ae | 865 | if (in_thread_list (inferior_ptid)) |
b3dc826b | 866 | thread = pid_to_thread_id (inferior_ptid); |
611c83ae | 867 | |
0fd8e87f | 868 | set_longjmp_breakpoint (thread); |
611c83ae | 869 | |
b3dc826b | 870 | make_cleanup (delete_longjmp_breakpoint_cleanup, &thread); |
c2d11a7d JM |
871 | } |
872 | ||
37d94800 | 873 | /* In synchronous case, all is well; each step_once call will step once. */ |
362646f5 | 874 | if (!target_can_async_p ()) |
c2d11a7d JM |
875 | { |
876 | for (; count > 0; count--) | |
877 | { | |
37d94800 | 878 | struct thread_info *tp; |
abbb1732 | 879 | |
37d94800 | 880 | step_once (skip_subroutines, single_inst, count, thread); |
c2d11a7d | 881 | |
37d94800 PA |
882 | if (target_has_execution |
883 | && !ptid_equal (inferior_ptid, null_ptid)) | |
884 | tp = inferior_thread (); | |
c2d11a7d | 885 | else |
37d94800 PA |
886 | tp = NULL; |
887 | ||
16c381f0 | 888 | if (!tp || !tp->control.stop_step || !tp->step_multi) |
c2d11a7d | 889 | { |
37d94800 PA |
890 | /* If we stopped for some reason that is not stepping |
891 | there are no further steps to make. */ | |
892 | if (tp) | |
893 | tp->step_multi = 0; | |
894 | break; | |
c2d11a7d | 895 | } |
c2d11a7d JM |
896 | } |
897 | ||
f107f563 | 898 | do_cleanups (cleanups); |
c2d11a7d | 899 | } |
c2d11a7d JM |
900 | else |
901 | { | |
37d94800 PA |
902 | /* In the case of an asynchronous target things get complicated; |
903 | do only one step for now, before returning control to the | |
904 | event loop. Let the continuation figure out how many other | |
905 | steps we need to do, and handle them one at the time, through | |
906 | step_once. */ | |
b3dc826b | 907 | step_once (skip_subroutines, single_inst, count, thread); |
37d94800 | 908 | |
611c83ae | 909 | /* We are running, and the continuation is installed. It will |
f107f563 VP |
910 | disable the longjmp breakpoint as appropriate. */ |
911 | discard_cleanups (cleanups); | |
c906108c | 912 | } |
c2d11a7d | 913 | } |
c906108c | 914 | |
bfec99b2 PA |
915 | struct step_1_continuation_args |
916 | { | |
917 | int count; | |
918 | int skip_subroutines; | |
919 | int single_inst; | |
920 | int thread; | |
921 | }; | |
922 | ||
c2d11a7d JM |
923 | /* Called after we are done with one step operation, to check whether |
924 | we need to step again, before we print the prompt and return control | |
925 | to the user. If count is > 1, we will need to do one more call to | |
926 | proceed(), via step_once(). Basically it is like step_once and | |
927 | step_1_continuation are co-recursive. */ | |
928 | static void | |
604ead4a | 929 | step_1_continuation (void *args) |
c2d11a7d | 930 | { |
bfec99b2 | 931 | struct step_1_continuation_args *a = args; |
f13468d9 | 932 | |
af679fd0 | 933 | if (target_has_execution) |
f13468d9 | 934 | { |
af679fd0 PA |
935 | struct thread_info *tp; |
936 | ||
937 | tp = inferior_thread (); | |
16c381f0 | 938 | if (tp->step_multi && tp->control.stop_step) |
af679fd0 PA |
939 | { |
940 | /* There are more steps to make, and we did stop due to | |
941 | ending a stepping range. Do another step. */ | |
37d94800 PA |
942 | step_once (a->skip_subroutines, a->single_inst, |
943 | a->count - 1, a->thread); | |
af679fd0 PA |
944 | return; |
945 | } | |
946 | tp->step_multi = 0; | |
f107f563 | 947 | } |
af679fd0 PA |
948 | |
949 | /* We either stopped for some reason that is not stepping, or there | |
950 | are no further steps to make. Cleanup. */ | |
951 | if (!a->single_inst || a->skip_subroutines) | |
952 | delete_longjmp_breakpoint (a->thread); | |
c2d11a7d JM |
953 | } |
954 | ||
37d94800 PA |
955 | /* Do just one step operation. This is useful to implement the 'step |
956 | n' kind of commands. In case of asynchronous targets, we will have | |
957 | to set up a continuation to be done after the target stops (after | |
958 | this one step). For synch targets, the caller handles further | |
959 | stepping. */ | |
960 | ||
961 | static void | |
611c83ae | 962 | step_once (int skip_subroutines, int single_inst, int count, int thread) |
bfec99b2 | 963 | { |
edb3359d | 964 | struct frame_info *frame = get_current_frame (); |
c2d11a7d JM |
965 | |
966 | if (count > 0) | |
c906108c | 967 | { |
4e1c45ea PA |
968 | /* Don't assume THREAD is a valid thread id. It is set to -1 if |
969 | the longjmp breakpoint was not required. Use the | |
970 | INFERIOR_PTID thread instead, which is the same thread when | |
971 | THREAD is set. */ | |
972 | struct thread_info *tp = inferior_thread (); | |
abbb1732 | 973 | |
c906108c | 974 | clear_proceed_status (); |
edb3359d | 975 | set_step_frame (); |
c906108c | 976 | |
c5aa993b | 977 | if (!single_inst) |
c906108c | 978 | { |
1641cfcc PA |
979 | CORE_ADDR pc; |
980 | ||
edb3359d DJ |
981 | /* Step at an inlined function behaves like "down". */ |
982 | if (!skip_subroutines && !single_inst | |
983 | && inline_skipped_frames (inferior_ptid)) | |
984 | { | |
985 | step_into_inline_frame (inferior_ptid); | |
986 | if (count > 1) | |
987 | step_once (skip_subroutines, single_inst, count - 1, thread); | |
988 | else | |
989 | /* Pretend that we've stopped. */ | |
990 | normal_stop (); | |
991 | return; | |
992 | } | |
993 | ||
1641cfcc PA |
994 | pc = get_frame_pc (frame); |
995 | find_pc_line_pc_range (pc, | |
16c381f0 JK |
996 | &tp->control.step_range_start, |
997 | &tp->control.step_range_end); | |
5fbbeb29 CF |
998 | |
999 | /* If we have no line info, switch to stepi mode. */ | |
16c381f0 JK |
1000 | if (tp->control.step_range_end == 0 && step_stop_if_no_debug) |
1001 | tp->control.step_range_start = tp->control.step_range_end = 1; | |
1002 | else if (tp->control.step_range_end == 0) | |
c906108c SS |
1003 | { |
1004 | char *name; | |
abbb1732 | 1005 | |
1641cfcc | 1006 | if (find_pc_partial_function (pc, &name, |
16c381f0 JK |
1007 | &tp->control.step_range_start, |
1008 | &tp->control.step_range_end) == 0) | |
8a3fe4f8 | 1009 | error (_("Cannot find bounds of current function")); |
c906108c SS |
1010 | |
1011 | target_terminal_ours (); | |
a3f17187 | 1012 | printf_filtered (_("\ |
cce7e648 | 1013 | Single stepping until exit from function %s,\n\ |
a3f17187 | 1014 | which has no line number information.\n"), name); |
c906108c SS |
1015 | } |
1016 | } | |
1017 | else | |
1018 | { | |
1019 | /* Say we are stepping, but stop after one insn whatever it does. */ | |
16c381f0 | 1020 | tp->control.step_range_start = tp->control.step_range_end = 1; |
c906108c SS |
1021 | if (!skip_subroutines) |
1022 | /* It is stepi. | |
1023 | Don't step over function calls, not even to functions lacking | |
1024 | line numbers. */ | |
16c381f0 | 1025 | tp->control.step_over_calls = STEP_OVER_NONE; |
c906108c SS |
1026 | } |
1027 | ||
1028 | if (skip_subroutines) | |
16c381f0 | 1029 | tp->control.step_over_calls = STEP_OVER_ALL; |
c906108c | 1030 | |
95e54da7 | 1031 | tp->step_multi = (count > 1); |
f107f563 | 1032 | proceed ((CORE_ADDR) -1, TARGET_SIGNAL_DEFAULT, 1); |
bfec99b2 | 1033 | |
37d94800 PA |
1034 | /* For async targets, register a continuation to do any |
1035 | additional steps. For sync targets, the caller will handle | |
1036 | further stepping. */ | |
1037 | if (target_can_async_p ()) | |
1038 | { | |
1039 | struct step_1_continuation_args *args; | |
1040 | ||
1041 | args = xmalloc (sizeof (*args)); | |
1042 | args->skip_subroutines = skip_subroutines; | |
1043 | args->single_inst = single_inst; | |
1044 | args->count = count; | |
1045 | args->thread = thread; | |
1046 | ||
1047 | add_intermediate_continuation (tp, step_1_continuation, args, xfree); | |
1048 | } | |
c906108c | 1049 | } |
c906108c | 1050 | } |
c2d11a7d | 1051 | |
c906108c SS |
1052 | \f |
1053 | /* Continue program at specified address. */ | |
1054 | ||
1055 | static void | |
fba45db2 | 1056 | jump_command (char *arg, int from_tty) |
c906108c | 1057 | { |
5af949e3 | 1058 | struct gdbarch *gdbarch = get_current_arch (); |
52f0bd74 | 1059 | CORE_ADDR addr; |
c906108c SS |
1060 | struct symtabs_and_lines sals; |
1061 | struct symtab_and_line sal; | |
1062 | struct symbol *fn; | |
1063 | struct symbol *sfn; | |
43ff13b4 | 1064 | int async_exec = 0; |
c5aa993b | 1065 | |
c906108c | 1066 | ERROR_NO_INFERIOR; |
573cda03 | 1067 | ensure_not_tfind_mode (); |
d729566a | 1068 | ensure_valid_thread (); |
94cc34af | 1069 | ensure_not_running (); |
c906108c | 1070 | |
43ff13b4 JM |
1071 | /* Find out whether we must run in the background. */ |
1072 | if (arg != NULL) | |
1073 | async_exec = strip_bg_char (&arg); | |
1074 | ||
1075 | /* If we must run in the background, but the target can't do it, | |
1076 | error out. */ | |
362646f5 | 1077 | if (async_exec && !target_can_async_p ()) |
8a3fe4f8 | 1078 | error (_("Asynchronous execution not supported on this target.")); |
43ff13b4 | 1079 | |
c906108c | 1080 | if (!arg) |
e2e0b3e5 | 1081 | error_no_arg (_("starting address")); |
c906108c SS |
1082 | |
1083 | sals = decode_line_spec_1 (arg, 1); | |
1084 | if (sals.nelts != 1) | |
1085 | { | |
8a3fe4f8 | 1086 | error (_("Unreasonable jump request")); |
c906108c SS |
1087 | } |
1088 | ||
1089 | sal = sals.sals[0]; | |
b8c9b27d | 1090 | xfree (sals.sals); |
c906108c SS |
1091 | |
1092 | if (sal.symtab == 0 && sal.pc == 0) | |
8a3fe4f8 | 1093 | error (_("No source file has been specified.")); |
c906108c | 1094 | |
c5aa993b | 1095 | resolve_sal_pc (&sal); /* May error out */ |
c906108c SS |
1096 | |
1097 | /* See if we are trying to jump to another function. */ | |
1098 | fn = get_frame_function (get_current_frame ()); | |
1099 | sfn = find_pc_function (sal.pc); | |
1100 | if (fn != NULL && sfn != fn) | |
1101 | { | |
9e2f0ad4 | 1102 | if (!query (_("Line %d is not in `%s'. Jump anyway? "), sal.line, |
de5ad195 | 1103 | SYMBOL_PRINT_NAME (fn))) |
c906108c | 1104 | { |
8a3fe4f8 | 1105 | error (_("Not confirmed.")); |
c906108c SS |
1106 | /* NOTREACHED */ |
1107 | } | |
1108 | } | |
1109 | ||
c5aa993b | 1110 | if (sfn != NULL) |
c906108c SS |
1111 | { |
1112 | fixup_symbol_section (sfn, 0); | |
714835d5 UW |
1113 | if (section_is_overlay (SYMBOL_OBJ_SECTION (sfn)) && |
1114 | !section_is_mapped (SYMBOL_OBJ_SECTION (sfn))) | |
c906108c | 1115 | { |
9e2f0ad4 | 1116 | if (!query (_("WARNING!!! Destination is in unmapped overlay! Jump anyway? "))) |
c906108c | 1117 | { |
8a3fe4f8 | 1118 | error (_("Not confirmed.")); |
c906108c SS |
1119 | /* NOTREACHED */ |
1120 | } | |
1121 | } | |
1122 | } | |
1123 | ||
c906108c SS |
1124 | addr = sal.pc; |
1125 | ||
1126 | if (from_tty) | |
1127 | { | |
a3f17187 | 1128 | printf_filtered (_("Continuing at ")); |
5af949e3 | 1129 | fputs_filtered (paddress (gdbarch, addr), gdb_stdout); |
c906108c SS |
1130 | printf_filtered (".\n"); |
1131 | } | |
1132 | ||
89113898 PA |
1133 | /* If we are not asked to run in the bg, then prepare to run in the |
1134 | foreground, synchronously. */ | |
1135 | if (!async_exec && target_can_async_p ()) | |
1136 | { | |
1137 | /* Simulate synchronous execution */ | |
1138 | async_disable_stdin (); | |
1139 | } | |
1140 | ||
c906108c SS |
1141 | clear_proceed_status (); |
1142 | proceed (addr, TARGET_SIGNAL_0, 0); | |
1143 | } | |
c906108c | 1144 | \f |
c5aa993b | 1145 | |
c906108c SS |
1146 | /* Go to line or address in current procedure */ |
1147 | static void | |
fba45db2 | 1148 | go_command (char *line_no, int from_tty) |
c906108c | 1149 | { |
c5aa993b | 1150 | if (line_no == (char *) NULL || !*line_no) |
f42429a6 | 1151 | printf_filtered (_("Usage: go <location>\n")); |
c906108c SS |
1152 | else |
1153 | { | |
b83266a0 SS |
1154 | tbreak_command (line_no, from_tty); |
1155 | jump_command (line_no, from_tty); | |
c906108c SS |
1156 | } |
1157 | } | |
c906108c | 1158 | \f |
c5aa993b | 1159 | |
c906108c SS |
1160 | /* Continue program giving it specified signal. */ |
1161 | ||
1162 | static void | |
fba45db2 | 1163 | signal_command (char *signum_exp, int from_tty) |
c906108c SS |
1164 | { |
1165 | enum target_signal oursig; | |
32c1e744 | 1166 | int async_exec = 0; |
c906108c SS |
1167 | |
1168 | dont_repeat (); /* Too dangerous. */ | |
1169 | ERROR_NO_INFERIOR; | |
573cda03 | 1170 | ensure_not_tfind_mode (); |
d729566a | 1171 | ensure_valid_thread (); |
94cc34af | 1172 | ensure_not_running (); |
c906108c | 1173 | |
32c1e744 VP |
1174 | /* Find out whether we must run in the background. */ |
1175 | if (signum_exp != NULL) | |
1176 | async_exec = strip_bg_char (&signum_exp); | |
1177 | ||
1178 | /* If we must run in the background, but the target can't do it, | |
1179 | error out. */ | |
1180 | if (async_exec && !target_can_async_p ()) | |
1181 | error (_("Asynchronous execution not supported on this target.")); | |
1182 | ||
1183 | /* If we are not asked to run in the bg, then prepare to run in the | |
1184 | foreground, synchronously. */ | |
1185 | if (!async_exec && target_can_async_p ()) | |
1186 | { | |
1187 | /* Simulate synchronous execution. */ | |
1188 | async_disable_stdin (); | |
1189 | } | |
1190 | ||
c906108c | 1191 | if (!signum_exp) |
e2e0b3e5 | 1192 | error_no_arg (_("signal number")); |
c906108c SS |
1193 | |
1194 | /* It would be even slicker to make signal names be valid expressions, | |
1195 | (the type could be "enum $signal" or some such), then the user could | |
1196 | assign them to convenience variables. */ | |
1197 | oursig = target_signal_from_name (signum_exp); | |
1198 | ||
1199 | if (oursig == TARGET_SIGNAL_UNKNOWN) | |
1200 | { | |
1201 | /* No, try numeric. */ | |
bb518678 | 1202 | int num = parse_and_eval_long (signum_exp); |
c906108c SS |
1203 | |
1204 | if (num == 0) | |
1205 | oursig = TARGET_SIGNAL_0; | |
1206 | else | |
1207 | oursig = target_signal_from_command (num); | |
1208 | } | |
1209 | ||
1210 | if (from_tty) | |
1211 | { | |
1212 | if (oursig == TARGET_SIGNAL_0) | |
a3f17187 | 1213 | printf_filtered (_("Continuing with no signal.\n")); |
c906108c | 1214 | else |
a3f17187 | 1215 | printf_filtered (_("Continuing with signal %s.\n"), |
c906108c SS |
1216 | target_signal_to_name (oursig)); |
1217 | } | |
1218 | ||
1219 | clear_proceed_status (); | |
a12cc160 | 1220 | proceed ((CORE_ADDR) -1, oursig, 0); |
c906108c SS |
1221 | } |
1222 | ||
c906108c SS |
1223 | /* Proceed until we reach a different source line with pc greater than |
1224 | our current one or exit the function. We skip calls in both cases. | |
1225 | ||
1226 | Note that eventually this command should probably be changed so | |
1227 | that only source lines are printed out when we hit the breakpoint | |
1228 | we set. This may involve changes to wait_for_inferior and the | |
1229 | proceed status code. */ | |
1230 | ||
c906108c | 1231 | static void |
fba45db2 | 1232 | until_next_command (int from_tty) |
c906108c SS |
1233 | { |
1234 | struct frame_info *frame; | |
1235 | CORE_ADDR pc; | |
1236 | struct symbol *func; | |
1237 | struct symtab_and_line sal; | |
4e1c45ea | 1238 | struct thread_info *tp = inferior_thread (); |
c5aa993b | 1239 | |
c906108c | 1240 | clear_proceed_status (); |
edb3359d | 1241 | set_step_frame (); |
c906108c SS |
1242 | |
1243 | frame = get_current_frame (); | |
1244 | ||
1245 | /* Step until either exited from this function or greater | |
1246 | than the current line (if in symbolic section) or pc (if | |
1247 | not). */ | |
1248 | ||
1c7819ef | 1249 | pc = get_frame_pc (frame); |
c906108c | 1250 | func = find_pc_function (pc); |
c5aa993b | 1251 | |
c906108c SS |
1252 | if (!func) |
1253 | { | |
1254 | struct minimal_symbol *msymbol = lookup_minimal_symbol_by_pc (pc); | |
c5aa993b | 1255 | |
c906108c | 1256 | if (msymbol == NULL) |
8a3fe4f8 | 1257 | error (_("Execution is not within a known function.")); |
c5aa993b | 1258 | |
16c381f0 JK |
1259 | tp->control.step_range_start = SYMBOL_VALUE_ADDRESS (msymbol); |
1260 | tp->control.step_range_end = pc; | |
c906108c SS |
1261 | } |
1262 | else | |
1263 | { | |
1264 | sal = find_pc_line (pc, 0); | |
c5aa993b | 1265 | |
16c381f0 JK |
1266 | tp->control.step_range_start = BLOCK_START (SYMBOL_BLOCK_VALUE (func)); |
1267 | tp->control.step_range_end = sal.end; | |
c906108c | 1268 | } |
c5aa993b | 1269 | |
16c381f0 | 1270 | tp->control.step_over_calls = STEP_OVER_ALL; |
c906108c | 1271 | |
af679fd0 | 1272 | tp->step_multi = 0; /* Only one call to proceed */ |
c5aa993b | 1273 | |
2acceee2 | 1274 | proceed ((CORE_ADDR) -1, TARGET_SIGNAL_DEFAULT, 1); |
c906108c SS |
1275 | } |
1276 | ||
c5aa993b | 1277 | static void |
fba45db2 | 1278 | until_command (char *arg, int from_tty) |
c906108c | 1279 | { |
43ff13b4 JM |
1280 | int async_exec = 0; |
1281 | ||
4247603b | 1282 | ERROR_NO_INFERIOR; |
573cda03 | 1283 | ensure_not_tfind_mode (); |
4247603b PA |
1284 | ensure_valid_thread (); |
1285 | ensure_not_running (); | |
573cda03 | 1286 | |
43ff13b4 JM |
1287 | /* Find out whether we must run in the background. */ |
1288 | if (arg != NULL) | |
1289 | async_exec = strip_bg_char (&arg); | |
1290 | ||
1291 | /* If we must run in the background, but the target can't do it, | |
1292 | error out. */ | |
362646f5 | 1293 | if (async_exec && !target_can_async_p ()) |
8a3fe4f8 | 1294 | error (_("Asynchronous execution not supported on this target.")); |
43ff13b4 JM |
1295 | |
1296 | /* If we are not asked to run in the bg, then prepare to run in the | |
1297 | foreground, synchronously. */ | |
362646f5 | 1298 | if (!async_exec && target_can_async_p ()) |
c5aa993b | 1299 | { |
43ff13b4 | 1300 | /* Simulate synchronous execution */ |
6426a772 | 1301 | async_disable_stdin (); |
43ff13b4 JM |
1302 | } |
1303 | ||
c906108c | 1304 | if (arg) |
ae66c1fc | 1305 | until_break_command (arg, from_tty, 0); |
c906108c SS |
1306 | else |
1307 | until_next_command (from_tty); | |
1308 | } | |
ae66c1fc EZ |
1309 | |
1310 | static void | |
1311 | advance_command (char *arg, int from_tty) | |
1312 | { | |
1313 | int async_exec = 0; | |
1314 | ||
4247603b | 1315 | ERROR_NO_INFERIOR; |
573cda03 | 1316 | ensure_not_tfind_mode (); |
4247603b PA |
1317 | ensure_valid_thread (); |
1318 | ensure_not_running (); | |
573cda03 | 1319 | |
ae66c1fc | 1320 | if (arg == NULL) |
e2e0b3e5 | 1321 | error_no_arg (_("a location")); |
ae66c1fc EZ |
1322 | |
1323 | /* Find out whether we must run in the background. */ | |
1324 | if (arg != NULL) | |
1325 | async_exec = strip_bg_char (&arg); | |
1326 | ||
1327 | /* If we must run in the background, but the target can't do it, | |
1328 | error out. */ | |
362646f5 | 1329 | if (async_exec && !target_can_async_p ()) |
8a3fe4f8 | 1330 | error (_("Asynchronous execution not supported on this target.")); |
ae66c1fc EZ |
1331 | |
1332 | /* If we are not asked to run in the bg, then prepare to run in the | |
1333 | foreground, synchronously. */ | |
362646f5 | 1334 | if (!async_exec && target_can_async_p ()) |
ae66c1fc EZ |
1335 | { |
1336 | /* Simulate synchronous execution. */ | |
1337 | async_disable_stdin (); | |
1338 | } | |
1339 | ||
1340 | until_break_command (arg, from_tty, 1); | |
1341 | } | |
c906108c | 1342 | \f |
f941662f MK |
1343 | /* Print the result of a function at the end of a 'finish' command. */ |
1344 | ||
11cf8741 | 1345 | static void |
c055b101 | 1346 | print_return_value (struct type *func_type, struct type *value_type) |
11cf8741 | 1347 | { |
d80b854b | 1348 | struct gdbarch *gdbarch = get_regcache_arch (stop_registers); |
bb472c1e MK |
1349 | struct cleanup *old_chain; |
1350 | struct ui_stream *stb; | |
44e5158b AC |
1351 | struct value *value; |
1352 | ||
181fc57c | 1353 | CHECK_TYPEDEF (value_type); |
44e5158b | 1354 | gdb_assert (TYPE_CODE (value_type) != TYPE_CODE_VOID); |
11cf8741 | 1355 | |
92ad9cd9 AC |
1356 | /* FIXME: 2003-09-27: When returning from a nested inferior function |
1357 | call, it's possible (with no help from the architecture vector) | |
1358 | to locate and return/print a "struct return" value. This is just | |
1359 | a more complicated case of what is already being done in in the | |
1360 | inferior function call code. In fact, when inferior function | |
1361 | calls are made async, this will likely be made the norm. */ | |
31db7b6c | 1362 | |
c055b101 CV |
1363 | switch (gdbarch_return_value (gdbarch, func_type, value_type, |
1364 | NULL, NULL, NULL)) | |
44e5158b | 1365 | { |
750eb019 AC |
1366 | case RETURN_VALUE_REGISTER_CONVENTION: |
1367 | case RETURN_VALUE_ABI_RETURNS_ADDRESS: | |
181fc57c | 1368 | case RETURN_VALUE_ABI_PRESERVES_ADDRESS: |
44e5158b | 1369 | value = allocate_value (value_type); |
c055b101 | 1370 | gdbarch_return_value (gdbarch, func_type, value_type, stop_registers, |
990a07ab | 1371 | value_contents_raw (value), NULL); |
750eb019 AC |
1372 | break; |
1373 | case RETURN_VALUE_STRUCT_CONVENTION: | |
1374 | value = NULL; | |
1375 | break; | |
1376 | default: | |
e2e0b3e5 | 1377 | internal_error (__FILE__, __LINE__, _("bad switch")); |
44e5158b | 1378 | } |
bb472c1e | 1379 | |
31db7b6c MK |
1380 | if (value) |
1381 | { | |
79a45b7d TT |
1382 | struct value_print_options opts; |
1383 | ||
31db7b6c | 1384 | /* Print it. */ |
1d751abe PA |
1385 | stb = ui_out_stream_new (uiout); |
1386 | old_chain = make_cleanup_ui_out_stream_delete (stb); | |
31db7b6c MK |
1387 | ui_out_text (uiout, "Value returned is "); |
1388 | ui_out_field_fmt (uiout, "gdb-result-var", "$%d", | |
1389 | record_latest_value (value)); | |
1390 | ui_out_text (uiout, " = "); | |
79a45b7d TT |
1391 | get_raw_print_options (&opts); |
1392 | value_print (value, stb->stream, &opts); | |
31db7b6c MK |
1393 | ui_out_field_stream (uiout, "return-value", stb); |
1394 | ui_out_text (uiout, "\n"); | |
1d751abe | 1395 | do_cleanups (old_chain); |
31db7b6c MK |
1396 | } |
1397 | else | |
1398 | { | |
1399 | ui_out_text (uiout, "Value returned has type: "); | |
1d751abe PA |
1400 | ui_out_field_string (uiout, "return-type", TYPE_NAME (value_type)); |
1401 | ui_out_text (uiout, "."); | |
1402 | ui_out_text (uiout, " Cannot determine contents\n"); | |
31db7b6c | 1403 | } |
11cf8741 JM |
1404 | } |
1405 | ||
43ff13b4 | 1406 | /* Stuff that needs to be done by the finish command after the target |
f941662f MK |
1407 | has stopped. In asynchronous mode, we wait for the target to stop |
1408 | in the call to poll or select in the event loop, so it is | |
1409 | impossible to do all the stuff as part of the finish_command | |
1410 | function itself. The only chance we have to complete this command | |
1411 | is in fetch_inferior_event, which is called by the event loop as | |
1412 | soon as it detects that the target has stopped. This function is | |
1413 | called via the cmd_continuation pointer. */ | |
1414 | ||
bfec99b2 | 1415 | struct finish_command_continuation_args |
43ff13b4 | 1416 | { |
43ff13b4 | 1417 | struct breakpoint *breakpoint; |
bfec99b2 PA |
1418 | struct symbol *function; |
1419 | }; | |
c5aa993b | 1420 | |
bfec99b2 | 1421 | static void |
604ead4a | 1422 | finish_command_continuation (void *arg) |
bfec99b2 PA |
1423 | { |
1424 | struct finish_command_continuation_args *a = arg; | |
41d2bdb4 | 1425 | struct thread_info *tp = NULL; |
347bddb7 PA |
1426 | bpstat bs = NULL; |
1427 | ||
1428 | if (!ptid_equal (inferior_ptid, null_ptid) | |
1429 | && target_has_execution | |
1430 | && is_stopped (inferior_ptid)) | |
41d2bdb4 PA |
1431 | { |
1432 | tp = inferior_thread (); | |
16c381f0 | 1433 | bs = tp->control.stop_bpstat; |
41d2bdb4 | 1434 | } |
347bddb7 PA |
1435 | |
1436 | if (bpstat_find_breakpoint (bs, a->breakpoint) != NULL | |
604ead4a | 1437 | && a->function != NULL) |
43ff13b4 | 1438 | { |
604ead4a | 1439 | struct type *value_type; |
bfec99b2 | 1440 | |
604ead4a PA |
1441 | value_type = TYPE_TARGET_TYPE (SYMBOL_TYPE (a->function)); |
1442 | if (!value_type) | |
1443 | internal_error (__FILE__, __LINE__, | |
1444 | _("finish_command: function has no target type")); | |
f5871ec0 | 1445 | |
604ead4a | 1446 | if (TYPE_CODE (value_type) != TYPE_CODE_VOID) |
40c549d6 TT |
1447 | { |
1448 | volatile struct gdb_exception ex; | |
1449 | ||
1450 | TRY_CATCH (ex, RETURN_MASK_ALL) | |
1451 | { | |
1452 | /* print_return_value can throw an exception in some | |
1453 | circumstances. We need to catch this so that we still | |
1454 | delete the breakpoint. */ | |
1455 | print_return_value (SYMBOL_TYPE (a->function), value_type); | |
1456 | } | |
1457 | if (ex.reason < 0) | |
1458 | exception_print (gdb_stdout, ex); | |
1459 | } | |
43ff13b4 | 1460 | } |
f941662f | 1461 | |
604ead4a | 1462 | /* We suppress normal call of normal_stop observer and do it here so |
41d2bdb4 | 1463 | that the *stopped notification includes the return value. */ |
16c381f0 | 1464 | if (bs != NULL && tp->control.proceed_to_finish) |
41d2bdb4 | 1465 | observer_notify_normal_stop (bs, 1 /* print frame */); |
bfec99b2 | 1466 | delete_breakpoint (a->breakpoint); |
43ff13b4 JM |
1467 | } |
1468 | ||
604ead4a PA |
1469 | static void |
1470 | finish_command_continuation_free_arg (void *arg) | |
1471 | { | |
604ead4a PA |
1472 | xfree (arg); |
1473 | } | |
1474 | ||
b2175913 MS |
1475 | /* finish_backward -- helper function for finish_command. */ |
1476 | ||
1477 | static void | |
1478 | finish_backward (struct symbol *function) | |
1479 | { | |
1480 | struct symtab_and_line sal; | |
1481 | struct thread_info *tp = inferior_thread (); | |
1482 | struct breakpoint *breakpoint; | |
1483 | struct cleanup *old_chain; | |
1c7819ef | 1484 | CORE_ADDR pc; |
b2175913 MS |
1485 | CORE_ADDR func_addr; |
1486 | int back_up; | |
1487 | ||
1c7819ef PA |
1488 | pc = get_frame_pc (get_current_frame ()); |
1489 | ||
1490 | if (find_pc_partial_function (pc, NULL, &func_addr, NULL) == 0) | |
b2175913 MS |
1491 | internal_error (__FILE__, __LINE__, |
1492 | _("Finish: couldn't find function.")); | |
1493 | ||
1494 | sal = find_pc_line (func_addr, 0); | |
1495 | ||
1496 | /* We don't need a return value. */ | |
16c381f0 | 1497 | tp->control.proceed_to_finish = 0; |
b2175913 MS |
1498 | /* Special case: if we're sitting at the function entry point, |
1499 | then all we need to do is take a reverse singlestep. We | |
1500 | don't need to set a breakpoint, and indeed it would do us | |
1501 | no good to do so. | |
1502 | ||
1503 | Note that this can only happen at frame #0, since there's | |
1504 | no way that a function up the stack can have a return address | |
1505 | that's equal to its entry point. */ | |
1506 | ||
1c7819ef | 1507 | if (sal.pc != pc) |
b2175913 | 1508 | { |
a6d9a66e UW |
1509 | struct frame_info *frame = get_selected_frame (NULL); |
1510 | struct gdbarch *gdbarch = get_frame_arch (frame); | |
1511 | ||
b2175913 MS |
1512 | /* Set breakpoint and continue. */ |
1513 | breakpoint = | |
a6d9a66e UW |
1514 | set_momentary_breakpoint (gdbarch, sal, |
1515 | get_stack_frame_id (frame), | |
b2175913 MS |
1516 | bp_breakpoint); |
1517 | /* Tell the breakpoint to keep quiet. We won't be done | |
1518 | until we've done another reverse single-step. */ | |
1519 | make_breakpoint_silent (breakpoint); | |
1520 | old_chain = make_cleanup_delete_breakpoint (breakpoint); | |
1521 | proceed ((CORE_ADDR) -1, TARGET_SIGNAL_DEFAULT, 0); | |
1522 | /* We will be stopped when proceed returns. */ | |
16c381f0 JK |
1523 | back_up = (bpstat_find_breakpoint (tp->control.stop_bpstat, breakpoint) |
1524 | != NULL); | |
b2175913 MS |
1525 | do_cleanups (old_chain); |
1526 | } | |
1527 | else | |
1528 | back_up = 1; | |
1529 | if (back_up) | |
1530 | { | |
1531 | /* If in fact we hit the step-resume breakpoint (and not | |
1532 | some other breakpoint), then we're almost there -- | |
1533 | we just need to back up by one more single-step. */ | |
16c381f0 | 1534 | tp->control.step_range_start = tp->control.step_range_end = 1; |
b2175913 MS |
1535 | proceed ((CORE_ADDR) -1, TARGET_SIGNAL_DEFAULT, 1); |
1536 | } | |
1537 | return; | |
1538 | } | |
1539 | ||
1540 | /* finish_forward -- helper function for finish_command. */ | |
1541 | ||
1542 | static void | |
1543 | finish_forward (struct symbol *function, struct frame_info *frame) | |
1544 | { | |
a6d9a66e | 1545 | struct gdbarch *gdbarch = get_frame_arch (frame); |
b2175913 MS |
1546 | struct symtab_and_line sal; |
1547 | struct thread_info *tp = inferior_thread (); | |
1548 | struct breakpoint *breakpoint; | |
1549 | struct cleanup *old_chain; | |
1550 | struct finish_command_continuation_args *cargs; | |
1551 | ||
1552 | sal = find_pc_line (get_frame_pc (frame), 0); | |
1553 | sal.pc = get_frame_pc (frame); | |
1554 | ||
a6d9a66e UW |
1555 | breakpoint = set_momentary_breakpoint (gdbarch, sal, |
1556 | get_stack_frame_id (frame), | |
b2175913 MS |
1557 | bp_finish); |
1558 | ||
1559 | old_chain = make_cleanup_delete_breakpoint (breakpoint); | |
1560 | ||
16c381f0 JK |
1561 | /* We want stop_registers, please... */ |
1562 | tp->control.proceed_to_finish = 1; | |
b2175913 MS |
1563 | cargs = xmalloc (sizeof (*cargs)); |
1564 | ||
1565 | cargs->breakpoint = breakpoint; | |
1566 | cargs->function = function; | |
1567 | add_continuation (tp, finish_command_continuation, cargs, | |
1568 | finish_command_continuation_free_arg); | |
6c95b8df | 1569 | proceed ((CORE_ADDR) -1, TARGET_SIGNAL_DEFAULT, 0); |
b2175913 MS |
1570 | |
1571 | discard_cleanups (old_chain); | |
1572 | if (!target_can_async_p ()) | |
1573 | do_all_continuations (); | |
1574 | } | |
1575 | ||
f941662f MK |
1576 | /* "finish": Set a temporary breakpoint at the place the selected |
1577 | frame will return to, then continue. */ | |
c906108c SS |
1578 | |
1579 | static void | |
fba45db2 | 1580 | finish_command (char *arg, int from_tty) |
c906108c | 1581 | { |
52f0bd74 AC |
1582 | struct frame_info *frame; |
1583 | struct symbol *function; | |
43ff13b4 JM |
1584 | |
1585 | int async_exec = 0; | |
1586 | ||
4247603b | 1587 | ERROR_NO_INFERIOR; |
573cda03 | 1588 | ensure_not_tfind_mode (); |
4247603b PA |
1589 | ensure_valid_thread (); |
1590 | ensure_not_running (); | |
573cda03 | 1591 | |
f941662f | 1592 | /* Find out whether we must run in the background. */ |
43ff13b4 JM |
1593 | if (arg != NULL) |
1594 | async_exec = strip_bg_char (&arg); | |
1595 | ||
1596 | /* If we must run in the background, but the target can't do it, | |
f941662f | 1597 | error out. */ |
362646f5 | 1598 | if (async_exec && !target_can_async_p ()) |
8a3fe4f8 | 1599 | error (_("Asynchronous execution not supported on this target.")); |
43ff13b4 | 1600 | |
b2175913 MS |
1601 | /* Don't try to async in reverse. */ |
1602 | if (async_exec && execution_direction == EXEC_REVERSE) | |
1603 | error (_("Asynchronous 'finish' not supported in reverse.")); | |
1604 | ||
43ff13b4 | 1605 | /* If we are not asked to run in the bg, then prepare to run in the |
f941662f | 1606 | foreground, synchronously. */ |
362646f5 | 1607 | if (!async_exec && target_can_async_p ()) |
c5aa993b | 1608 | { |
f941662f | 1609 | /* Simulate synchronous execution. */ |
6426a772 | 1610 | async_disable_stdin (); |
43ff13b4 | 1611 | } |
c906108c SS |
1612 | |
1613 | if (arg) | |
8a3fe4f8 | 1614 | error (_("The \"finish\" command does not take any arguments.")); |
c906108c | 1615 | |
206415a3 | 1616 | frame = get_prev_frame (get_selected_frame (_("No selected frame."))); |
c906108c | 1617 | if (frame == 0) |
8a3fe4f8 | 1618 | error (_("\"finish\" not meaningful in the outermost frame.")); |
c906108c SS |
1619 | |
1620 | clear_proceed_status (); | |
1621 | ||
edb3359d DJ |
1622 | /* Finishing from an inline frame is completely different. We don't |
1623 | try to show the "return value" - no way to locate it. So we do | |
1624 | not need a completion. */ | |
1625 | if (get_frame_type (get_selected_frame (_("No selected frame."))) | |
1626 | == INLINE_FRAME) | |
1627 | { | |
1628 | /* Claim we are stepping in the calling frame. An empty step | |
1629 | range means that we will stop once we aren't in a function | |
1630 | called by that frame. We don't use the magic "1" value for | |
1631 | step_range_end, because then infrun will think this is nexti, | |
1632 | and not step over the rest of this inlined function call. */ | |
1633 | struct thread_info *tp = inferior_thread (); | |
1634 | struct symtab_and_line empty_sal; | |
abbb1732 | 1635 | |
edb3359d DJ |
1636 | init_sal (&empty_sal); |
1637 | set_step_info (frame, empty_sal); | |
16c381f0 JK |
1638 | tp->control.step_range_start = get_frame_pc (frame); |
1639 | tp->control.step_range_end = tp->control.step_range_start; | |
1640 | tp->control.step_over_calls = STEP_OVER_ALL; | |
edb3359d DJ |
1641 | |
1642 | /* Print info on the selected frame, including level number but not | |
1643 | source. */ | |
1644 | if (from_tty) | |
1645 | { | |
1646 | printf_filtered (_("Run till exit from ")); | |
1647 | print_stack_frame (get_selected_frame (NULL), 1, LOCATION); | |
1648 | } | |
1649 | ||
1650 | proceed ((CORE_ADDR) -1, TARGET_SIGNAL_DEFAULT, 1); | |
1651 | return; | |
1652 | } | |
1653 | ||
c906108c SS |
1654 | /* Find the function we will return from. */ |
1655 | ||
206415a3 | 1656 | function = find_pc_function (get_frame_pc (get_selected_frame (NULL))); |
c906108c | 1657 | |
f941662f MK |
1658 | /* Print info on the selected frame, including level number but not |
1659 | source. */ | |
c906108c SS |
1660 | if (from_tty) |
1661 | { | |
b2175913 MS |
1662 | if (execution_direction == EXEC_REVERSE) |
1663 | printf_filtered (_("Run back to call of ")); | |
1664 | else | |
1665 | printf_filtered (_("Run till exit from ")); | |
1666 | ||
b04f3ab4 | 1667 | print_stack_frame (get_selected_frame (NULL), 1, LOCATION); |
c906108c SS |
1668 | } |
1669 | ||
b2175913 MS |
1670 | if (execution_direction == EXEC_REVERSE) |
1671 | finish_backward (function); | |
1672 | else | |
1673 | finish_forward (function, frame); | |
c906108c SS |
1674 | } |
1675 | \f | |
f941662f | 1676 | |
c906108c | 1677 | static void |
fba45db2 | 1678 | program_info (char *args, int from_tty) |
c906108c | 1679 | { |
347bddb7 PA |
1680 | bpstat bs; |
1681 | int num, stat; | |
1682 | struct thread_info *tp; | |
1683 | ptid_t ptid; | |
c5aa993b | 1684 | |
c906108c SS |
1685 | if (!target_has_execution) |
1686 | { | |
a3f17187 | 1687 | printf_filtered (_("The program being debugged is not being run.\n")); |
c906108c SS |
1688 | return; |
1689 | } | |
1690 | ||
347bddb7 PA |
1691 | if (non_stop) |
1692 | ptid = inferior_ptid; | |
1693 | else | |
1694 | { | |
1695 | struct target_waitstatus ws; | |
abbb1732 | 1696 | |
347bddb7 PA |
1697 | get_last_target_status (&ptid, &ws); |
1698 | } | |
1699 | ||
1700 | if (ptid_equal (ptid, null_ptid) || is_exited (ptid)) | |
1701 | error (_("Invalid selected thread.")); | |
1702 | else if (is_running (ptid)) | |
1703 | error (_("Selected thread is running.")); | |
1704 | ||
e09875d4 | 1705 | tp = find_thread_ptid (ptid); |
16c381f0 | 1706 | bs = tp->control.stop_bpstat; |
347bddb7 PA |
1707 | stat = bpstat_num (&bs, &num); |
1708 | ||
c906108c | 1709 | target_files_info (); |
5af949e3 UW |
1710 | printf_filtered (_("Program stopped at %s.\n"), |
1711 | paddress (target_gdbarch, stop_pc)); | |
16c381f0 | 1712 | if (tp->control.stop_step) |
a3f17187 | 1713 | printf_filtered (_("It stopped after being stepped.\n")); |
8671a17b | 1714 | else if (stat != 0) |
c906108c SS |
1715 | { |
1716 | /* There may be several breakpoints in the same place, so this | |
c5aa993b | 1717 | isn't as strange as it seems. */ |
8671a17b | 1718 | while (stat != 0) |
c906108c | 1719 | { |
8671a17b | 1720 | if (stat < 0) |
c906108c | 1721 | { |
a3f17187 AC |
1722 | printf_filtered (_("\ |
1723 | It stopped at a breakpoint that has since been deleted.\n")); | |
c906108c SS |
1724 | } |
1725 | else | |
a3f17187 | 1726 | printf_filtered (_("It stopped at breakpoint %d.\n"), num); |
8671a17b | 1727 | stat = bpstat_num (&bs, &num); |
c906108c SS |
1728 | } |
1729 | } | |
16c381f0 | 1730 | else if (tp->suspend.stop_signal != TARGET_SIGNAL_0) |
c906108c | 1731 | { |
a3f17187 | 1732 | printf_filtered (_("It stopped with signal %s, %s.\n"), |
16c381f0 JK |
1733 | target_signal_to_name (tp->suspend.stop_signal), |
1734 | target_signal_to_string (tp->suspend.stop_signal)); | |
c906108c SS |
1735 | } |
1736 | ||
1737 | if (!from_tty) | |
1738 | { | |
a3f17187 AC |
1739 | printf_filtered (_("\ |
1740 | Type \"info stack\" or \"info registers\" for more information.\n")); | |
c906108c SS |
1741 | } |
1742 | } | |
1743 | \f | |
1744 | static void | |
fba45db2 | 1745 | environment_info (char *var, int from_tty) |
c906108c SS |
1746 | { |
1747 | if (var) | |
1748 | { | |
3f81c18a | 1749 | char *val = get_in_environ (current_inferior ()->environment, var); |
abbb1732 | 1750 | |
c906108c SS |
1751 | if (val) |
1752 | { | |
1753 | puts_filtered (var); | |
1754 | puts_filtered (" = "); | |
1755 | puts_filtered (val); | |
1756 | puts_filtered ("\n"); | |
1757 | } | |
1758 | else | |
1759 | { | |
1760 | puts_filtered ("Environment variable \""); | |
1761 | puts_filtered (var); | |
1762 | puts_filtered ("\" not defined.\n"); | |
1763 | } | |
1764 | } | |
1765 | else | |
1766 | { | |
3f81c18a | 1767 | char **vector = environ_vector (current_inferior ()->environment); |
abbb1732 | 1768 | |
c906108c SS |
1769 | while (*vector) |
1770 | { | |
1771 | puts_filtered (*vector++); | |
1772 | puts_filtered ("\n"); | |
1773 | } | |
1774 | } | |
1775 | } | |
1776 | ||
1777 | static void | |
fba45db2 | 1778 | set_environment_command (char *arg, int from_tty) |
c906108c | 1779 | { |
52f0bd74 | 1780 | char *p, *val, *var; |
c906108c SS |
1781 | int nullset = 0; |
1782 | ||
1783 | if (arg == 0) | |
e2e0b3e5 | 1784 | error_no_arg (_("environment variable and value")); |
c906108c SS |
1785 | |
1786 | /* Find seperation between variable name and value */ | |
1787 | p = (char *) strchr (arg, '='); | |
1788 | val = (char *) strchr (arg, ' '); | |
1789 | ||
1790 | if (p != 0 && val != 0) | |
1791 | { | |
1792 | /* We have both a space and an equals. If the space is before the | |
c5aa993b JM |
1793 | equals, walk forward over the spaces til we see a nonspace |
1794 | (possibly the equals). */ | |
c906108c SS |
1795 | if (p > val) |
1796 | while (*val == ' ') | |
1797 | val++; | |
1798 | ||
1799 | /* Now if the = is after the char following the spaces, | |
c5aa993b | 1800 | take the char following the spaces. */ |
c906108c SS |
1801 | if (p > val) |
1802 | p = val - 1; | |
1803 | } | |
1804 | else if (val != 0 && p == 0) | |
1805 | p = val; | |
1806 | ||
1807 | if (p == arg) | |
e2e0b3e5 | 1808 | error_no_arg (_("environment variable to set")); |
c906108c SS |
1809 | |
1810 | if (p == 0 || p[1] == 0) | |
1811 | { | |
1812 | nullset = 1; | |
1813 | if (p == 0) | |
1814 | p = arg + strlen (arg); /* So that savestring below will work */ | |
1815 | } | |
1816 | else | |
1817 | { | |
1818 | /* Not setting variable value to null */ | |
1819 | val = p + 1; | |
1820 | while (*val == ' ' || *val == '\t') | |
1821 | val++; | |
1822 | } | |
1823 | ||
c5aa993b JM |
1824 | while (p != arg && (p[-1] == ' ' || p[-1] == '\t')) |
1825 | p--; | |
c906108c SS |
1826 | |
1827 | var = savestring (arg, p - arg); | |
1828 | if (nullset) | |
1829 | { | |
a3f17187 AC |
1830 | printf_filtered (_("\ |
1831 | Setting environment variable \"%s\" to null value.\n"), | |
1832 | var); | |
3f81c18a | 1833 | set_in_environ (current_inferior ()->environment, var, ""); |
c906108c SS |
1834 | } |
1835 | else | |
3f81c18a | 1836 | set_in_environ (current_inferior ()->environment, var, val); |
b8c9b27d | 1837 | xfree (var); |
c906108c SS |
1838 | } |
1839 | ||
1840 | static void | |
fba45db2 | 1841 | unset_environment_command (char *var, int from_tty) |
c906108c SS |
1842 | { |
1843 | if (var == 0) | |
1844 | { | |
1845 | /* If there is no argument, delete all environment variables. | |
c5aa993b | 1846 | Ask for confirmation if reading from the terminal. */ |
e2e0b3e5 | 1847 | if (!from_tty || query (_("Delete all environment variables? "))) |
c906108c | 1848 | { |
3f81c18a VP |
1849 | free_environ (current_inferior ()->environment); |
1850 | current_inferior ()->environment = make_environ (); | |
c906108c SS |
1851 | } |
1852 | } | |
1853 | else | |
3f81c18a | 1854 | unset_in_environ (current_inferior ()->environment, var); |
c906108c SS |
1855 | } |
1856 | ||
1857 | /* Handle the execution path (PATH variable) */ | |
1858 | ||
1859 | static const char path_var_name[] = "PATH"; | |
1860 | ||
c906108c | 1861 | static void |
fba45db2 | 1862 | path_info (char *args, int from_tty) |
c906108c SS |
1863 | { |
1864 | puts_filtered ("Executable and object file path: "); | |
3f81c18a | 1865 | puts_filtered (get_in_environ (current_inferior ()->environment, path_var_name)); |
c906108c SS |
1866 | puts_filtered ("\n"); |
1867 | } | |
1868 | ||
1869 | /* Add zero or more directories to the front of the execution path. */ | |
1870 | ||
1871 | static void | |
fba45db2 | 1872 | path_command (char *dirname, int from_tty) |
c906108c SS |
1873 | { |
1874 | char *exec_path; | |
1875 | char *env; | |
abbb1732 | 1876 | |
c906108c | 1877 | dont_repeat (); |
3f81c18a | 1878 | env = get_in_environ (current_inferior ()->environment, path_var_name); |
c906108c SS |
1879 | /* Can be null if path is not set */ |
1880 | if (!env) | |
1881 | env = ""; | |
4fcf66da | 1882 | exec_path = xstrdup (env); |
c906108c | 1883 | mod_path (dirname, &exec_path); |
3f81c18a | 1884 | set_in_environ (current_inferior ()->environment, path_var_name, exec_path); |
b8c9b27d | 1885 | xfree (exec_path); |
c906108c | 1886 | if (from_tty) |
c5aa993b | 1887 | path_info ((char *) NULL, from_tty); |
c906108c | 1888 | } |
c906108c | 1889 | \f |
c5aa993b | 1890 | |
4782dc19 | 1891 | /* Print out the machine register regnum. If regnum is -1, print all |
0ab7a791 AC |
1892 | registers (print_all == 1) or all non-float and non-vector |
1893 | registers (print_all == 0). | |
c906108c SS |
1894 | |
1895 | For most machines, having all_registers_info() print the | |
0ab7a791 AC |
1896 | register(s) one per line is good enough. If a different format is |
1897 | required, (eg, for MIPS or Pyramid 90x, which both have lots of | |
1898 | regs), or there is an existing convention for showing all the | |
1899 | registers, define the architecture method PRINT_REGISTERS_INFO to | |
1900 | provide that format. */ | |
c906108c | 1901 | |
666e11c5 | 1902 | void |
0ab7a791 AC |
1903 | default_print_registers_info (struct gdbarch *gdbarch, |
1904 | struct ui_file *file, | |
1905 | struct frame_info *frame, | |
1906 | int regnum, int print_all) | |
c906108c | 1907 | { |
0ab7a791 | 1908 | int i; |
a4bd449d UW |
1909 | const int numregs = gdbarch_num_regs (gdbarch) |
1910 | + gdbarch_num_pseudo_regs (gdbarch); | |
10c42a71 | 1911 | gdb_byte buffer[MAX_REGISTER_SIZE]; |
0ab7a791 | 1912 | |
c906108c SS |
1913 | for (i = 0; i < numregs; i++) |
1914 | { | |
4782dc19 AC |
1915 | /* Decide between printing all regs, non-float / vector regs, or |
1916 | specific reg. */ | |
c5aa993b JM |
1917 | if (regnum == -1) |
1918 | { | |
f9418c0f | 1919 | if (print_all) |
4782dc19 | 1920 | { |
f9418c0f | 1921 | if (!gdbarch_register_reggroup_p (gdbarch, i, all_reggroup)) |
4782dc19 | 1922 | continue; |
f9418c0f AC |
1923 | } |
1924 | else | |
1925 | { | |
1926 | if (!gdbarch_register_reggroup_p (gdbarch, i, general_reggroup)) | |
4782dc19 AC |
1927 | continue; |
1928 | } | |
c5aa993b JM |
1929 | } |
1930 | else | |
1931 | { | |
1932 | if (i != regnum) | |
1933 | continue; | |
1934 | } | |
c906108c SS |
1935 | |
1936 | /* If the register name is empty, it is undefined for this | |
c5aa993b | 1937 | processor, so don't display anything. */ |
a4bd449d UW |
1938 | if (gdbarch_register_name (gdbarch, i) == NULL |
1939 | || *(gdbarch_register_name (gdbarch, i)) == '\0') | |
c906108c SS |
1940 | continue; |
1941 | ||
a4bd449d | 1942 | fputs_filtered (gdbarch_register_name (gdbarch, i), file); |
c9f4d572 | 1943 | print_spaces_filtered (15 - strlen (gdbarch_register_name |
a4bd449d | 1944 | (gdbarch, i)), file); |
c906108c SS |
1945 | |
1946 | /* Get the data in raw format. */ | |
9730f241 | 1947 | if (! frame_register_read (frame, i, buffer)) |
c906108c | 1948 | { |
0ab7a791 | 1949 | fprintf_filtered (file, "*value not available*\n"); |
c906108c SS |
1950 | continue; |
1951 | } | |
1952 | ||
0ab7a791 AC |
1953 | /* If virtual format is floating, print it that way, and in raw |
1954 | hex. */ | |
f949c649 TJB |
1955 | if (TYPE_CODE (register_type (gdbarch, i)) == TYPE_CODE_FLT |
1956 | || TYPE_CODE (register_type (gdbarch, i)) == TYPE_CODE_DECFLOAT) | |
c906108c | 1957 | { |
0ab7a791 | 1958 | int j; |
79a45b7d | 1959 | struct value_print_options opts; |
c906108c | 1960 | |
79a45b7d TT |
1961 | get_user_print_options (&opts); |
1962 | opts.deref_ref = 1; | |
a4bd449d | 1963 | val_print (register_type (gdbarch, i), buffer, 0, 0, |
0e03807e | 1964 | file, 0, NULL, &opts, current_language); |
c906108c | 1965 | |
0ab7a791 | 1966 | fprintf_filtered (file, "\t(raw 0x"); |
a4bd449d | 1967 | for (j = 0; j < register_size (gdbarch, i); j++) |
c906108c | 1968 | { |
0ab7a791 | 1969 | int idx; |
abbb1732 | 1970 | |
a4bd449d | 1971 | if (gdbarch_byte_order (gdbarch) == BFD_ENDIAN_BIG) |
0ab7a791 AC |
1972 | idx = j; |
1973 | else | |
a4bd449d | 1974 | idx = register_size (gdbarch, i) - 1 - j; |
9730f241 | 1975 | fprintf_filtered (file, "%02x", (unsigned char) buffer[idx]); |
c906108c | 1976 | } |
0ab7a791 | 1977 | fprintf_filtered (file, ")"); |
c906108c | 1978 | } |
c906108c SS |
1979 | else |
1980 | { | |
79a45b7d TT |
1981 | struct value_print_options opts; |
1982 | ||
ab4327e0 | 1983 | /* Print the register in hex. */ |
79a45b7d TT |
1984 | get_formatted_print_options (&opts, 'x'); |
1985 | opts.deref_ref = 1; | |
a4bd449d | 1986 | val_print (register_type (gdbarch, i), buffer, 0, 0, |
0e03807e | 1987 | file, 0, NULL, &opts, current_language); |
ab4327e0 EZ |
1988 | /* If not a vector register, print it also according to its |
1989 | natural format. */ | |
a4bd449d | 1990 | if (TYPE_VECTOR (register_type (gdbarch, i)) == 0) |
ab4327e0 | 1991 | { |
79a45b7d TT |
1992 | get_user_print_options (&opts); |
1993 | opts.deref_ref = 1; | |
9d84ac84 | 1994 | fprintf_filtered (file, "\t"); |
a4bd449d | 1995 | val_print (register_type (gdbarch, i), buffer, 0, 0, |
0e03807e | 1996 | file, 0, NULL, &opts, current_language); |
ab4327e0 | 1997 | } |
c906108c SS |
1998 | } |
1999 | ||
0ab7a791 | 2000 | fprintf_filtered (file, "\n"); |
c906108c SS |
2001 | } |
2002 | } | |
c906108c | 2003 | |
c906108c | 2004 | void |
fba45db2 | 2005 | registers_info (char *addr_exp, int fpregs) |
c906108c | 2006 | { |
206415a3 | 2007 | struct frame_info *frame; |
a4bd449d | 2008 | struct gdbarch *gdbarch; |
c906108c SS |
2009 | |
2010 | if (!target_has_registers) | |
8a3fe4f8 | 2011 | error (_("The program has no registers now.")); |
206415a3 | 2012 | frame = get_selected_frame (NULL); |
a4bd449d | 2013 | gdbarch = get_frame_arch (frame); |
c906108c SS |
2014 | |
2015 | if (!addr_exp) | |
2016 | { | |
a4bd449d | 2017 | gdbarch_print_registers_info (gdbarch, gdb_stdout, |
206415a3 | 2018 | frame, -1, fpregs); |
c906108c SS |
2019 | return; |
2020 | } | |
2021 | ||
f9418c0f | 2022 | while (*addr_exp != '\0') |
c5aa993b | 2023 | { |
f9418c0f AC |
2024 | char *start; |
2025 | const char *end; | |
c906108c | 2026 | |
f9418c0f AC |
2027 | /* Keep skipping leading white space. */ |
2028 | if (isspace ((*addr_exp))) | |
2029 | { | |
2030 | addr_exp++; | |
2031 | continue; | |
2032 | } | |
c906108c | 2033 | |
f9418c0f AC |
2034 | /* Discard any leading ``$''. Check that there is something |
2035 | resembling a register following it. */ | |
2036 | if (addr_exp[0] == '$') | |
2037 | addr_exp++; | |
2038 | if (isspace ((*addr_exp)) || (*addr_exp) == '\0') | |
8a3fe4f8 | 2039 | error (_("Missing register name")); |
c906108c | 2040 | |
f9418c0f AC |
2041 | /* Find the start/end of this register name/num/group. */ |
2042 | start = addr_exp; | |
2043 | while ((*addr_exp) != '\0' && !isspace ((*addr_exp))) | |
2044 | addr_exp++; | |
2045 | end = addr_exp; | |
ad842144 | 2046 | |
f9418c0f AC |
2047 | /* Figure out what we've found and display it. */ |
2048 | ||
2049 | /* A register name? */ | |
2050 | { | |
029a67e4 | 2051 | int regnum = user_reg_map_name_to_regnum (gdbarch, start, end - start); |
abbb1732 | 2052 | |
f9418c0f AC |
2053 | if (regnum >= 0) |
2054 | { | |
ad842144 MR |
2055 | /* User registers lie completely outside of the range of |
2056 | normal registers. Catch them early so that the target | |
2057 | never sees them. */ | |
2058 | if (regnum >= gdbarch_num_regs (gdbarch) | |
2059 | + gdbarch_num_pseudo_regs (gdbarch)) | |
2060 | { | |
79a45b7d | 2061 | struct value_print_options opts; |
ad842144 MR |
2062 | struct value *val = value_of_user_reg (regnum, frame); |
2063 | ||
2064 | printf_filtered ("%s: ", start); | |
79a45b7d | 2065 | get_formatted_print_options (&opts, 'x'); |
ad842144 MR |
2066 | print_scalar_formatted (value_contents (val), |
2067 | check_typedef (value_type (val)), | |
79a45b7d | 2068 | &opts, 0, gdb_stdout); |
ad842144 MR |
2069 | printf_filtered ("\n"); |
2070 | } | |
2071 | else | |
2072 | gdbarch_print_registers_info (gdbarch, gdb_stdout, | |
2073 | frame, regnum, fpregs); | |
f9418c0f AC |
2074 | continue; |
2075 | } | |
2076 | } | |
ad842144 | 2077 | |
f9418c0f AC |
2078 | /* A register group? */ |
2079 | { | |
6c7d17ba | 2080 | struct reggroup *group; |
abbb1732 | 2081 | |
a4bd449d | 2082 | for (group = reggroup_next (gdbarch, NULL); |
6c7d17ba | 2083 | group != NULL; |
a4bd449d | 2084 | group = reggroup_next (gdbarch, group)) |
f9418c0f AC |
2085 | { |
2086 | /* Don't bother with a length check. Should the user | |
2087 | enter a short register group name, go with the first | |
2088 | group that matches. */ | |
6c7d17ba | 2089 | if (strncmp (start, reggroup_name (group), end - start) == 0) |
f9418c0f AC |
2090 | break; |
2091 | } | |
6c7d17ba | 2092 | if (group != NULL) |
f9418c0f AC |
2093 | { |
2094 | int regnum; | |
abbb1732 | 2095 | |
f57d151a | 2096 | for (regnum = 0; |
a4bd449d UW |
2097 | regnum < gdbarch_num_regs (gdbarch) |
2098 | + gdbarch_num_pseudo_regs (gdbarch); | |
f57d151a | 2099 | regnum++) |
f9418c0f | 2100 | { |
a4bd449d UW |
2101 | if (gdbarch_register_reggroup_p (gdbarch, regnum, group)) |
2102 | gdbarch_print_registers_info (gdbarch, | |
206415a3 | 2103 | gdb_stdout, frame, |
f9418c0f AC |
2104 | regnum, fpregs); |
2105 | } | |
2106 | continue; | |
2107 | } | |
2108 | } | |
c906108c | 2109 | |
f9418c0f | 2110 | /* Nothing matched. */ |
8a3fe4f8 | 2111 | error (_("Invalid register `%.*s'"), (int) (end - start), start); |
c5aa993b | 2112 | } |
c906108c SS |
2113 | } |
2114 | ||
2115 | void | |
fba45db2 | 2116 | all_registers_info (char *addr_exp, int from_tty) |
c906108c SS |
2117 | { |
2118 | registers_info (addr_exp, 1); | |
2119 | } | |
2120 | ||
a58dd373 | 2121 | static void |
fba45db2 | 2122 | nofp_registers_info (char *addr_exp, int from_tty) |
c906108c SS |
2123 | { |
2124 | registers_info (addr_exp, 0); | |
2125 | } | |
e76f1f2e AC |
2126 | |
2127 | static void | |
d80b854b | 2128 | print_vector_info (struct ui_file *file, |
e76f1f2e AC |
2129 | struct frame_info *frame, const char *args) |
2130 | { | |
d80b854b UW |
2131 | struct gdbarch *gdbarch = get_frame_arch (frame); |
2132 | ||
e76f1f2e AC |
2133 | if (gdbarch_print_vector_info_p (gdbarch)) |
2134 | gdbarch_print_vector_info (gdbarch, file, frame, args); | |
2135 | else | |
2136 | { | |
2137 | int regnum; | |
2138 | int printed_something = 0; | |
ab4327e0 | 2139 | |
f57d151a | 2140 | for (regnum = 0; |
a4bd449d UW |
2141 | regnum < gdbarch_num_regs (gdbarch) |
2142 | + gdbarch_num_pseudo_regs (gdbarch); | |
f57d151a | 2143 | regnum++) |
e76f1f2e | 2144 | { |
f9418c0f | 2145 | if (gdbarch_register_reggroup_p (gdbarch, regnum, vector_reggroup)) |
e76f1f2e AC |
2146 | { |
2147 | printed_something = 1; | |
e76f1f2e | 2148 | gdbarch_print_registers_info (gdbarch, file, frame, regnum, 1); |
e76f1f2e AC |
2149 | } |
2150 | } | |
2151 | if (!printed_something) | |
2152 | fprintf_filtered (file, "No vector information\n"); | |
2153 | } | |
2154 | } | |
2155 | ||
2156 | static void | |
2157 | vector_info (char *args, int from_tty) | |
2158 | { | |
206415a3 DJ |
2159 | if (!target_has_registers) |
2160 | error (_("The program has no registers now.")); | |
2161 | ||
d80b854b | 2162 | print_vector_info (gdb_stdout, get_selected_frame (NULL), args); |
e76f1f2e | 2163 | } |
c906108c | 2164 | \f |
5fd62852 PA |
2165 | /* Kill the inferior process. Make us have no inferior. */ |
2166 | ||
2167 | static void | |
2168 | kill_command (char *arg, int from_tty) | |
2169 | { | |
2170 | /* FIXME: This should not really be inferior_ptid (or target_has_execution). | |
2171 | It should be a distinct flag that indicates that a target is active, cuz | |
2172 | some targets don't have processes! */ | |
2173 | ||
2174 | if (ptid_equal (inferior_ptid, null_ptid)) | |
2175 | error (_("The program is not being run.")); | |
2176 | if (!query (_("Kill the program being debugged? "))) | |
2177 | error (_("Not confirmed.")); | |
2178 | target_kill (); | |
2179 | ||
c35b1492 PA |
2180 | /* If we still have other inferiors to debug, then don't mess with |
2181 | with their threads. */ | |
2182 | if (!have_inferiors ()) | |
5fd62852 PA |
2183 | { |
2184 | init_thread_list (); /* Destroy thread info */ | |
2185 | ||
2186 | /* Killing off the inferior can leave us with a core file. If | |
2187 | so, print the state we are left in. */ | |
2188 | if (target_has_stack) | |
2189 | { | |
2190 | printf_filtered (_("In %s,\n"), target_longname); | |
2191 | print_stack_frame (get_selected_frame (NULL), 1, SRC_AND_LOC); | |
2192 | } | |
2193 | } | |
2194 | bfd_cache_close_all (); | |
2195 | } | |
c5aa993b | 2196 | |
74531fed PA |
2197 | /* Used in `attach&' command. ARG is a point to an integer |
2198 | representing a process id. Proceed threads of this process iff | |
2199 | they stopped due to debugger request, and when they did, they | |
2200 | reported a clean stop (TARGET_SIGNAL_0). Do not proceed threads | |
2201 | that have been explicitly been told to stop. */ | |
2202 | ||
2203 | static int | |
2204 | proceed_after_attach_callback (struct thread_info *thread, | |
2205 | void *arg) | |
2206 | { | |
2207 | int pid = * (int *) arg; | |
2208 | ||
2209 | if (ptid_get_pid (thread->ptid) == pid | |
2210 | && !is_exited (thread->ptid) | |
2211 | && !is_executing (thread->ptid) | |
2212 | && !thread->stop_requested | |
16c381f0 | 2213 | && thread->suspend.stop_signal == TARGET_SIGNAL_0) |
74531fed PA |
2214 | { |
2215 | switch_to_thread (thread->ptid); | |
2216 | clear_proceed_status (); | |
2217 | proceed ((CORE_ADDR) -1, TARGET_SIGNAL_DEFAULT, 0); | |
2218 | } | |
2219 | ||
2220 | return 0; | |
2221 | } | |
2222 | ||
2223 | static void | |
2224 | proceed_after_attach (int pid) | |
2225 | { | |
2226 | /* Don't error out if the current thread is running, because | |
2227 | there may be other stopped threads. */ | |
2228 | struct cleanup *old_chain; | |
2229 | ||
2230 | /* Backup current thread and selected frame. */ | |
2231 | old_chain = make_cleanup_restore_current_thread (); | |
2232 | ||
2233 | iterate_over_threads (proceed_after_attach_callback, &pid); | |
2234 | ||
2235 | /* Restore selected ptid. */ | |
2236 | do_cleanups (old_chain); | |
2237 | } | |
2238 | ||
c906108c SS |
2239 | /* |
2240 | * TODO: | |
2241 | * Should save/restore the tty state since it might be that the | |
2242 | * program to be debugged was started on this tty and it wants | |
2243 | * the tty in some state other than what we want. If it's running | |
2244 | * on another terminal or without a terminal, then saving and | |
2245 | * restoring the tty state is a harmless no-op. | |
2246 | * This only needs to be done if we are attaching to a process. | |
2247 | */ | |
2248 | ||
2249 | /* | |
2250 | attach_command -- | |
2251 | takes a program started up outside of gdb and ``attaches'' to it. | |
2252 | This stops it cold in its tracks and allows us to start debugging it. | |
2253 | and wait for the trace-trap that results from attaching. */ | |
2254 | ||
9356cf8d PA |
2255 | static void |
2256 | attach_command_post_wait (char *args, int from_tty, int async_exec) | |
2257 | { | |
2258 | char *exec_file; | |
2259 | char *full_exec_path = NULL; | |
d6b48e9c | 2260 | struct inferior *inferior; |
9356cf8d | 2261 | |
d6b48e9c | 2262 | inferior = current_inferior (); |
16c381f0 | 2263 | inferior->control.stop_soon = NO_STOP_QUIETLY; |
9356cf8d PA |
2264 | |
2265 | /* If no exec file is yet known, try to determine it from the | |
2266 | process itself. */ | |
2267 | exec_file = (char *) get_exec_file (0); | |
2268 | if (!exec_file) | |
2269 | { | |
2270 | exec_file = target_pid_to_exec_file (PIDGET (inferior_ptid)); | |
2271 | if (exec_file) | |
2272 | { | |
2273 | /* It's possible we don't have a full path, but rather just a | |
2274 | filename. Some targets, such as HP-UX, don't provide the | |
2275 | full path, sigh. | |
2276 | ||
2277 | Attempt to qualify the filename against the source path. | |
2278 | (If that fails, we'll just fall back on the original | |
2279 | filename. Not much more we can do...) | |
2280 | */ | |
2281 | if (!source_full_path_of (exec_file, &full_exec_path)) | |
1b36a34b | 2282 | full_exec_path = xstrdup (exec_file); |
9356cf8d PA |
2283 | |
2284 | exec_file_attach (full_exec_path, from_tty); | |
2285 | symbol_file_add_main (full_exec_path, from_tty); | |
2286 | } | |
2287 | } | |
2288 | else | |
2289 | { | |
2290 | reopen_exec_file (); | |
2291 | reread_symbols (); | |
2292 | } | |
2293 | ||
2294 | /* Take any necessary post-attaching actions for this platform. */ | |
2295 | target_post_attach (PIDGET (inferior_ptid)); | |
2296 | ||
2297 | post_create_inferior (¤t_target, from_tty); | |
2298 | ||
2299 | /* Install inferior's terminal modes. */ | |
2300 | target_terminal_inferior (); | |
2301 | ||
2302 | if (async_exec) | |
74531fed PA |
2303 | { |
2304 | /* The user requested an `attach&', so be sure to leave threads | |
2305 | that didn't get a signal running. */ | |
2306 | ||
2307 | /* Immediatelly resume all suspended threads of this inferior, | |
2308 | and this inferior only. This should have no effect on | |
2309 | already running threads. If a thread has been stopped with a | |
2310 | signal, leave it be. */ | |
2311 | if (non_stop) | |
2312 | proceed_after_attach (inferior->pid); | |
2313 | else | |
2314 | { | |
16c381f0 | 2315 | if (inferior_thread ()->suspend.stop_signal == TARGET_SIGNAL_0) |
74531fed PA |
2316 | { |
2317 | clear_proceed_status (); | |
2318 | proceed ((CORE_ADDR) -1, TARGET_SIGNAL_DEFAULT, 0); | |
2319 | } | |
2320 | } | |
2321 | } | |
9356cf8d PA |
2322 | else |
2323 | { | |
74531fed PA |
2324 | /* The user requested a plain `attach', so be sure to leave |
2325 | the inferior stopped. */ | |
2326 | ||
9356cf8d PA |
2327 | if (target_can_async_p ()) |
2328 | async_enable_stdin (); | |
74531fed PA |
2329 | |
2330 | /* At least the current thread is already stopped. */ | |
2331 | ||
2332 | /* In all-stop, by definition, all threads have to be already | |
2333 | stopped at this point. In non-stop, however, although the | |
2334 | selected thread is stopped, others may still be executing. | |
2335 | Be sure to explicitly stop all threads of the process. This | |
2336 | should have no effect on already stopped threads. */ | |
2337 | if (non_stop) | |
2338 | target_stop (pid_to_ptid (inferior->pid)); | |
2339 | ||
2340 | /* Tell the user/frontend where we're stopped. */ | |
9356cf8d PA |
2341 | normal_stop (); |
2342 | if (deprecated_attach_hook) | |
2343 | deprecated_attach_hook (); | |
2344 | } | |
2345 | } | |
2346 | ||
bfec99b2 | 2347 | struct attach_command_continuation_args |
9356cf8d PA |
2348 | { |
2349 | char *args; | |
2350 | int from_tty; | |
2351 | int async_exec; | |
bfec99b2 | 2352 | }; |
9356cf8d | 2353 | |
bfec99b2 | 2354 | static void |
604ead4a | 2355 | attach_command_continuation (void *args) |
bfec99b2 PA |
2356 | { |
2357 | struct attach_command_continuation_args *a = args; | |
abbb1732 | 2358 | |
bfec99b2 | 2359 | attach_command_post_wait (a->args, a->from_tty, a->async_exec); |
9356cf8d PA |
2360 | } |
2361 | ||
604ead4a PA |
2362 | static void |
2363 | attach_command_continuation_free_args (void *args) | |
2364 | { | |
2365 | struct attach_command_continuation_args *a = args; | |
abbb1732 | 2366 | |
604ead4a PA |
2367 | xfree (a->args); |
2368 | xfree (a); | |
2369 | } | |
2370 | ||
c906108c | 2371 | void |
fba45db2 | 2372 | attach_command (char *args, int from_tty) |
c906108c | 2373 | { |
9356cf8d | 2374 | int async_exec = 0; |
cb0362bb | 2375 | struct cleanup *back_to = make_cleanup (null_cleanup, NULL); |
c906108c | 2376 | |
c5aa993b | 2377 | dont_repeat (); /* Not for the faint of heart */ |
c906108c | 2378 | |
2567c7d9 PA |
2379 | if (gdbarch_has_global_solist (target_gdbarch)) |
2380 | /* Don't complain if all processes share the same symbol | |
2381 | space. */ | |
8a305172 PA |
2382 | ; |
2383 | else if (target_has_execution) | |
c906108c | 2384 | { |
9e2f0ad4 | 2385 | if (query (_("A program is being debugged already. Kill it? "))) |
c906108c SS |
2386 | target_kill (); |
2387 | else | |
8a3fe4f8 | 2388 | error (_("Not killed.")); |
c906108c SS |
2389 | } |
2390 | ||
fd79ecee DJ |
2391 | /* Clean up any leftovers from other runs. Some other things from |
2392 | this function should probably be moved into target_pre_inferior. */ | |
2393 | target_pre_inferior (from_tty); | |
2394 | ||
9908b566 VP |
2395 | if (non_stop && !target_supports_non_stop ()) |
2396 | error (_("Cannot attach to this target in non-stop mode")); | |
2397 | ||
9356cf8d PA |
2398 | if (args) |
2399 | { | |
2400 | async_exec = strip_bg_char (&args); | |
2401 | ||
2402 | /* If we get a request for running in the bg but the target | |
2403 | doesn't support it, error out. */ | |
2404 | if (async_exec && !target_can_async_p ()) | |
2405 | error (_("Asynchronous execution not supported on this target.")); | |
2406 | } | |
2407 | ||
2408 | /* If we don't get a request of running in the bg, then we need | |
2409 | to simulate synchronous (fg) execution. */ | |
2410 | if (!async_exec && target_can_async_p ()) | |
2411 | { | |
2412 | /* Simulate synchronous execution */ | |
2413 | async_disable_stdin (); | |
cb0362bb | 2414 | make_cleanup ((make_cleanup_ftype *)async_enable_stdin, NULL); |
9356cf8d PA |
2415 | } |
2416 | ||
c906108c SS |
2417 | target_attach (args, from_tty); |
2418 | ||
2419 | /* Set up the "saved terminal modes" of the inferior | |
2420 | based on what modes we are starting it with. */ | |
2421 | target_terminal_init (); | |
2422 | ||
c906108c SS |
2423 | /* Set up execution context to know that we should return from |
2424 | wait_for_inferior as soon as the target reports a stop. */ | |
2425 | init_wait_for_inferior (); | |
2426 | clear_proceed_status (); | |
c906108c | 2427 | |
74531fed PA |
2428 | if (non_stop) |
2429 | { | |
2430 | /* If we find that the current thread isn't stopped, explicitly | |
2431 | do so now, because we're going to install breakpoints and | |
2432 | poke at memory. */ | |
2433 | ||
2434 | if (async_exec) | |
2435 | /* The user requested an `attach&'; stop just one thread. */ | |
2436 | target_stop (inferior_ptid); | |
2437 | else | |
2438 | /* The user requested an `attach', so stop all threads of this | |
2439 | inferior. */ | |
2440 | target_stop (pid_to_ptid (ptid_get_pid (inferior_ptid))); | |
2441 | } | |
2442 | ||
dc177b7a PA |
2443 | /* Some system don't generate traps when attaching to inferior. |
2444 | E.g. Mach 3 or GNU hurd. */ | |
2445 | if (!target_attach_no_wait) | |
c5aa993b | 2446 | { |
d6b48e9c PA |
2447 | struct inferior *inferior = current_inferior (); |
2448 | ||
dc177b7a PA |
2449 | /* Careful here. See comments in inferior.h. Basically some |
2450 | OSes don't ignore SIGSTOPs on continue requests anymore. We | |
2451 | need a way for handle_inferior_event to reset the stop_signal | |
2452 | variable after an attach, and this is what | |
2453 | STOP_QUIETLY_NO_SIGSTOP is for. */ | |
16c381f0 | 2454 | inferior->control.stop_soon = STOP_QUIETLY_NO_SIGSTOP; |
c5aa993b | 2455 | |
dc177b7a PA |
2456 | if (target_can_async_p ()) |
2457 | { | |
2458 | /* sync_execution mode. Wait for stop. */ | |
bfec99b2 PA |
2459 | struct attach_command_continuation_args *a; |
2460 | ||
2461 | a = xmalloc (sizeof (*a)); | |
2462 | a->args = xstrdup (args); | |
2463 | a->from_tty = from_tty; | |
2464 | a->async_exec = async_exec; | |
e0ba6746 PA |
2465 | add_inferior_continuation (attach_command_continuation, a, |
2466 | attach_command_continuation_free_args); | |
cb0362bb | 2467 | discard_cleanups (back_to); |
dc177b7a PA |
2468 | return; |
2469 | } | |
c906108c | 2470 | |
dc177b7a PA |
2471 | wait_for_inferior (0); |
2472 | } | |
6426a772 | 2473 | |
9356cf8d | 2474 | attach_command_post_wait (args, from_tty, async_exec); |
cb0362bb | 2475 | discard_cleanups (back_to); |
c906108c SS |
2476 | } |
2477 | ||
1941c569 PA |
2478 | /* We had just found out that the target was already attached to an |
2479 | inferior. PTID points at a thread of this new inferior, that is | |
2480 | the most likely to be stopped right now, but not necessarily so. | |
2481 | The new inferior is assumed to be already added to the inferior | |
2482 | list at this point. If LEAVE_RUNNING, then leave the threads of | |
2483 | this inferior running, except those we've explicitly seen reported | |
2484 | as stopped. */ | |
2485 | ||
2486 | void | |
2487 | notice_new_inferior (ptid_t ptid, int leave_running, int from_tty) | |
2488 | { | |
2489 | struct cleanup* old_chain; | |
2490 | int async_exec; | |
2491 | ||
2492 | old_chain = make_cleanup (null_cleanup, NULL); | |
2493 | ||
2494 | /* If in non-stop, leave threads as running as they were. If | |
2495 | they're stopped for some reason other than us telling it to, the | |
2496 | target reports a signal != TARGET_SIGNAL_0. We don't try to | |
2497 | resume threads with such a stop signal. */ | |
2498 | async_exec = non_stop; | |
2499 | ||
2500 | if (!ptid_equal (inferior_ptid, null_ptid)) | |
2501 | make_cleanup_restore_current_thread (); | |
2502 | ||
2503 | switch_to_thread (ptid); | |
2504 | ||
2505 | /* When we "notice" a new inferior we need to do all the things we | |
2506 | would normally do if we had just attached to it. */ | |
2507 | ||
2508 | if (is_executing (inferior_ptid)) | |
2509 | { | |
2510 | struct inferior *inferior = current_inferior (); | |
2511 | ||
2512 | /* We're going to install breakpoints, and poke at memory, | |
2513 | ensure that the inferior is stopped for a moment while we do | |
2514 | that. */ | |
2515 | target_stop (inferior_ptid); | |
2516 | ||
16c381f0 | 2517 | inferior->control.stop_soon = STOP_QUIETLY_REMOTE; |
1941c569 PA |
2518 | |
2519 | /* Wait for stop before proceeding. */ | |
2520 | if (target_can_async_p ()) | |
2521 | { | |
2522 | struct attach_command_continuation_args *a; | |
2523 | ||
2524 | a = xmalloc (sizeof (*a)); | |
2525 | a->args = xstrdup (""); | |
2526 | a->from_tty = from_tty; | |
2527 | a->async_exec = async_exec; | |
2528 | add_inferior_continuation (attach_command_continuation, a, | |
2529 | attach_command_continuation_free_args); | |
2530 | ||
2531 | do_cleanups (old_chain); | |
2532 | return; | |
2533 | } | |
2534 | else | |
2535 | wait_for_inferior (0); | |
2536 | } | |
2537 | ||
2538 | async_exec = leave_running; | |
2539 | attach_command_post_wait ("" /* args */, from_tty, async_exec); | |
2540 | ||
2541 | do_cleanups (old_chain); | |
2542 | } | |
2543 | ||
c906108c SS |
2544 | /* |
2545 | * detach_command -- | |
2546 | * takes a program previously attached to and detaches it. | |
2547 | * The program resumes execution and will no longer stop | |
2548 | * on signals, etc. We better not have left any breakpoints | |
2549 | * in the program or it'll die when it hits one. For this | |
2550 | * to work, it may be necessary for the process to have been | |
2551 | * previously attached. It *might* work if the program was | |
2552 | * started via the normal ptrace (PTRACE_TRACEME). | |
2553 | */ | |
2554 | ||
6418d433 | 2555 | void |
fba45db2 | 2556 | detach_command (char *args, int from_tty) |
c906108c | 2557 | { |
1f5d0fc9 | 2558 | dont_repeat (); /* Not for the faint of heart. */ |
d729566a PA |
2559 | |
2560 | if (ptid_equal (inferior_ptid, null_ptid)) | |
2561 | error (_("The program is not being run.")); | |
2562 | ||
33da3f1c | 2563 | disconnect_tracing (from_tty); |
d5551862 | 2564 | |
c906108c | 2565 | target_detach (args, from_tty); |
50c71eaf PA |
2566 | |
2567 | /* If the solist is global across inferiors, don't clear it when we | |
2568 | detach from a single inferior. */ | |
2569 | if (!gdbarch_has_global_solist (target_gdbarch)) | |
2570 | no_shared_libraries (NULL, from_tty); | |
8a305172 | 2571 | |
c35b1492 PA |
2572 | /* If we still have inferiors to debug, then don't mess with their |
2573 | threads. */ | |
2574 | if (!have_inferiors ()) | |
8a305172 PA |
2575 | init_thread_list (); |
2576 | ||
9a4105ab AC |
2577 | if (deprecated_detach_hook) |
2578 | deprecated_detach_hook (); | |
c906108c SS |
2579 | } |
2580 | ||
6ad8ae5c DJ |
2581 | /* Disconnect from the current target without resuming it (leaving it |
2582 | waiting for a debugger). | |
2583 | ||
2584 | We'd better not have left any breakpoints in the program or the | |
2585 | next debugger will get confused. Currently only supported for some | |
2586 | remote targets, since the normal attach mechanisms don't work on | |
2587 | stopped processes on some native platforms (e.g. GNU/Linux). */ | |
2588 | ||
2589 | static void | |
2590 | disconnect_command (char *args, int from_tty) | |
2591 | { | |
2592 | dont_repeat (); /* Not for the faint of heart */ | |
2593 | target_disconnect (args, from_tty); | |
e85a822c | 2594 | no_shared_libraries (NULL, from_tty); |
a0ef4274 | 2595 | init_thread_list (); |
9a4105ab AC |
2596 | if (deprecated_detach_hook) |
2597 | deprecated_detach_hook (); | |
6ad8ae5c DJ |
2598 | } |
2599 | ||
77ebaa5a VP |
2600 | void |
2601 | interrupt_target_1 (int all_threads) | |
2602 | { | |
2603 | ptid_t ptid; | |
abbb1732 | 2604 | |
77ebaa5a VP |
2605 | if (all_threads) |
2606 | ptid = minus_one_ptid; | |
2607 | else | |
2608 | ptid = inferior_ptid; | |
2609 | target_stop (ptid); | |
252fbfc8 PA |
2610 | |
2611 | /* Tag the thread as having been explicitly requested to stop, so | |
2612 | other parts of gdb know not to resume this thread automatically, | |
2613 | if it was stopped due to an internal event. Limit this to | |
2614 | non-stop mode, as when debugging a multi-threaded application in | |
2615 | all-stop mode, we will only get one stop event --- it's undefined | |
2616 | which thread will report the event. */ | |
2617 | if (non_stop) | |
2618 | set_stop_requested (ptid, 1); | |
77ebaa5a VP |
2619 | } |
2620 | ||
43ff13b4 | 2621 | /* Stop the execution of the target while running in async mode, in |
8cae4b3f PA |
2622 | the backgound. In all-stop, stop the whole process. In non-stop |
2623 | mode, stop the current thread only by default, or stop all threads | |
2624 | if the `-a' switch is used. */ | |
2625 | ||
2626 | /* interrupt [-a] */ | |
8b93c638 | 2627 | void |
fba45db2 | 2628 | interrupt_target_command (char *args, int from_tty) |
43ff13b4 | 2629 | { |
362646f5 | 2630 | if (target_can_async_p ()) |
43ff13b4 | 2631 | { |
8cae4b3f PA |
2632 | int all_threads = 0; |
2633 | ||
c5aa993b | 2634 | dont_repeat (); /* Not for the faint of heart */ |
94cc34af | 2635 | |
8cae4b3f PA |
2636 | if (args != NULL |
2637 | && strncmp (args, "-a", sizeof ("-a") - 1) == 0) | |
2638 | all_threads = 1; | |
2639 | ||
2640 | if (!non_stop && all_threads) | |
2641 | error (_("-a is meaningless in all-stop mode.")); | |
2642 | ||
77ebaa5a | 2643 | interrupt_target_1 (all_threads); |
43ff13b4 JM |
2644 | } |
2645 | } | |
2646 | ||
c906108c | 2647 | static void |
d80b854b | 2648 | print_float_info (struct ui_file *file, |
23e3a7ac | 2649 | struct frame_info *frame, const char *args) |
c906108c | 2650 | { |
d80b854b UW |
2651 | struct gdbarch *gdbarch = get_frame_arch (frame); |
2652 | ||
23e3a7ac AC |
2653 | if (gdbarch_print_float_info_p (gdbarch)) |
2654 | gdbarch_print_float_info (gdbarch, file, frame, args); | |
2655 | else | |
2656 | { | |
23e3a7ac AC |
2657 | int regnum; |
2658 | int printed_something = 0; | |
ab4327e0 | 2659 | |
f57d151a | 2660 | for (regnum = 0; |
a4bd449d UW |
2661 | regnum < gdbarch_num_regs (gdbarch) |
2662 | + gdbarch_num_pseudo_regs (gdbarch); | |
f57d151a | 2663 | regnum++) |
23e3a7ac | 2664 | { |
f9418c0f | 2665 | if (gdbarch_register_reggroup_p (gdbarch, regnum, float_reggroup)) |
23e3a7ac AC |
2666 | { |
2667 | printed_something = 1; | |
23e3a7ac | 2668 | gdbarch_print_registers_info (gdbarch, file, frame, regnum, 1); |
23e3a7ac AC |
2669 | } |
2670 | } | |
2671 | if (!printed_something) | |
2672 | fprintf_filtered (file, "\ | |
2673 | No floating-point info available for this processor.\n"); | |
23e3a7ac AC |
2674 | } |
2675 | } | |
2676 | ||
2677 | static void | |
2678 | float_info (char *args, int from_tty) | |
2679 | { | |
206415a3 DJ |
2680 | if (!target_has_registers) |
2681 | error (_("The program has no registers now.")); | |
2682 | ||
d80b854b | 2683 | print_float_info (gdb_stdout, get_selected_frame (NULL), args); |
c906108c SS |
2684 | } |
2685 | \f | |
c906108c | 2686 | static void |
fba45db2 | 2687 | unset_command (char *args, int from_tty) |
c906108c | 2688 | { |
a3f17187 AC |
2689 | printf_filtered (_("\ |
2690 | \"unset\" must be followed by the name of an unset subcommand.\n")); | |
c906108c SS |
2691 | help_list (unsetlist, "unset ", -1, gdb_stdout); |
2692 | } | |
2693 | ||
2694 | void | |
fba45db2 | 2695 | _initialize_infcmd (void) |
c906108c | 2696 | { |
3cb3b8df BR |
2697 | struct cmd_list_element *c = NULL; |
2698 | ||
2699 | /* add the filename of the terminal connected to inferior I/O */ | |
2700 | add_setshow_filename_cmd ("inferior-tty", class_run, | |
3f81c18a | 2701 | &inferior_io_terminal_scratch, _("\ |
3cb3b8df BR |
2702 | Set terminal for future runs of program being debugged."), _("\ |
2703 | Show terminal for future runs of program being debugged."), _("\ | |
3f81c18a VP |
2704 | Usage: set inferior-tty /dev/pts/1"), |
2705 | set_inferior_tty_command, | |
2706 | show_inferior_tty_command, | |
2707 | &setlist, &showlist); | |
3cb3b8df | 2708 | add_com_alias ("tty", "set inferior-tty", class_alias, 0); |
c906108c | 2709 | |
b4b4ac0b | 2710 | add_setshow_optional_filename_cmd ("args", class_run, |
3f81c18a | 2711 | &inferior_args_scratch, _("\ |
b4b4ac0b AC |
2712 | Set argument list to give program being debugged when it is started."), _("\ |
2713 | Show argument list to give program being debugged when it is started."), _("\ | |
2714 | Follow this command with any number of args, to be passed to the program."), | |
3f81c18a VP |
2715 | set_args_command, |
2716 | show_args_command, | |
b4b4ac0b | 2717 | &setlist, &showlist); |
c906108c | 2718 | |
1a966eab AC |
2719 | c = add_cmd ("environment", no_class, environment_info, _("\ |
2720 | The environment to give the program, or one variable's value.\n\ | |
c906108c SS |
2721 | With an argument VAR, prints the value of environment variable VAR to\n\ |
2722 | give the program being debugged. With no arguments, prints the entire\n\ | |
1a966eab | 2723 | environment to be given to the program."), &showlist); |
5ba2abeb | 2724 | set_cmd_completer (c, noop_completer); |
c906108c SS |
2725 | |
2726 | add_prefix_cmd ("unset", no_class, unset_command, | |
1bedd215 | 2727 | _("Complement to certain \"set\" commands."), |
c906108c | 2728 | &unsetlist, "unset ", 0, &cmdlist); |
c5aa993b | 2729 | |
1a966eab AC |
2730 | c = add_cmd ("environment", class_run, unset_environment_command, _("\ |
2731 | Cancel environment variable VAR for the program.\n\ | |
2732 | This does not affect the program until the next \"run\" command."), | |
c5aa993b | 2733 | &unsetlist); |
5ba2abeb | 2734 | set_cmd_completer (c, noop_completer); |
c906108c | 2735 | |
1a966eab AC |
2736 | c = add_cmd ("environment", class_run, set_environment_command, _("\ |
2737 | Set environment variable value to give the program.\n\ | |
c906108c SS |
2738 | Arguments are VAR VALUE where VAR is variable name and VALUE is value.\n\ |
2739 | VALUES of environment variables are uninterpreted strings.\n\ | |
1a966eab | 2740 | This does not affect the program until the next \"run\" command."), |
c5aa993b | 2741 | &setlist); |
5ba2abeb | 2742 | set_cmd_completer (c, noop_completer); |
c5aa993b | 2743 | |
1bedd215 AC |
2744 | c = add_com ("path", class_files, path_command, _("\ |
2745 | Add directory DIR(s) to beginning of search path for object files.\n\ | |
c906108c SS |
2746 | $cwd in the path means the current working directory.\n\ |
2747 | This path is equivalent to the $PATH shell variable. It is a list of\n\ | |
2748 | directories, separated by colons. These directories are searched to find\n\ | |
1bedd215 | 2749 | fully linked executable files and separately compiled object files as needed.")); |
5ba2abeb | 2750 | set_cmd_completer (c, filename_completer); |
c906108c | 2751 | |
1a966eab AC |
2752 | c = add_cmd ("paths", no_class, path_info, _("\ |
2753 | Current search path for finding object files.\n\ | |
c906108c SS |
2754 | $cwd in the path means the current working directory.\n\ |
2755 | This path is equivalent to the $PATH shell variable. It is a list of\n\ | |
2756 | directories, separated by colons. These directories are searched to find\n\ | |
1a966eab | 2757 | fully linked executable files and separately compiled object files as needed."), |
c906108c | 2758 | &showlist); |
5ba2abeb | 2759 | set_cmd_completer (c, noop_completer); |
c906108c | 2760 | |
2277426b PA |
2761 | add_prefix_cmd ("kill", class_run, kill_command, |
2762 | _("Kill execution of program being debugged."), | |
2763 | &killlist, "kill ", 0, &cmdlist); | |
5fd62852 | 2764 | |
1bedd215 AC |
2765 | add_com ("attach", class_run, attach_command, _("\ |
2766 | Attach to a process or file outside of GDB.\n\ | |
c906108c SS |
2767 | This command attaches to another target, of the same type as your last\n\ |
2768 | \"target\" command (\"info files\" will show your target stack).\n\ | |
2769 | The command may take as argument a process id or a device file.\n\ | |
2770 | For a process id, you must have permission to send the process a signal,\n\ | |
2771 | and it must have the same effective uid as the debugger.\n\ | |
2772 | When using \"attach\" with a process id, the debugger finds the\n\ | |
2773 | program running in the process, looking first in the current working\n\ | |
2774 | directory, or (if not found there) using the source file search path\n\ | |
2775 | (see the \"directory\" command). You can also use the \"file\" command\n\ | |
1bedd215 | 2776 | to specify the program, and to load its symbol table.")); |
c906108c | 2777 | |
f73adfeb | 2778 | add_prefix_cmd ("detach", class_run, detach_command, _("\ |
1bedd215 | 2779 | Detach a process or file previously attached.\n\ |
c906108c | 2780 | If a process, it is no longer traced, and it continues its execution. If\n\ |
f73adfeb AS |
2781 | you were debugging a file, the file is closed and gdb no longer accesses it."), |
2782 | &detachlist, "detach ", 0, &cmdlist); | |
c906108c | 2783 | |
1bedd215 AC |
2784 | add_com ("disconnect", class_run, disconnect_command, _("\ |
2785 | Disconnect from a target.\n\ | |
6ad8ae5c | 2786 | The target will wait for another debugger to connect. Not available for\n\ |
1bedd215 | 2787 | all targets.")); |
6ad8ae5c | 2788 | |
1bedd215 AC |
2789 | add_com ("signal", class_run, signal_command, _("\ |
2790 | Continue program giving it signal specified by the argument.\n\ | |
2791 | An argument of \"0\" means continue program without giving it a signal.")); | |
c906108c | 2792 | |
1bedd215 AC |
2793 | add_com ("stepi", class_run, stepi_command, _("\ |
2794 | Step one instruction exactly.\n\ | |
2795 | Argument N means do this N times (or till program stops for another reason).")); | |
c906108c SS |
2796 | add_com_alias ("si", "stepi", class_alias, 0); |
2797 | ||
1bedd215 AC |
2798 | add_com ("nexti", class_run, nexti_command, _("\ |
2799 | Step one instruction, but proceed through subroutine calls.\n\ | |
2800 | Argument N means do this N times (or till program stops for another reason).")); | |
c906108c SS |
2801 | add_com_alias ("ni", "nexti", class_alias, 0); |
2802 | ||
1bedd215 AC |
2803 | add_com ("finish", class_run, finish_command, _("\ |
2804 | Execute until selected stack frame returns.\n\ | |
2805 | Upon return, the value returned is printed and put in the value history.")); | |
0e479716 | 2806 | add_com_alias ("fin", "finish", class_run, 1); |
c906108c | 2807 | |
1bedd215 AC |
2808 | add_com ("next", class_run, next_command, _("\ |
2809 | Step program, proceeding through subroutine calls.\n\ | |
c906108c SS |
2810 | Like the \"step\" command as long as subroutine calls do not happen;\n\ |
2811 | when they do, the call is treated as one instruction.\n\ | |
1bedd215 | 2812 | Argument N means do this N times (or till program stops for another reason).")); |
c906108c SS |
2813 | add_com_alias ("n", "next", class_run, 1); |
2814 | if (xdb_commands) | |
c5aa993b | 2815 | add_com_alias ("S", "next", class_run, 1); |
c906108c | 2816 | |
1bedd215 AC |
2817 | add_com ("step", class_run, step_command, _("\ |
2818 | Step program until it reaches a different source line.\n\ | |
2819 | Argument N means do this N times (or till program stops for another reason).")); | |
c906108c SS |
2820 | add_com_alias ("s", "step", class_run, 1); |
2821 | ||
1bedd215 AC |
2822 | c = add_com ("until", class_run, until_command, _("\ |
2823 | Execute until the program reaches a source line greater than the current\n\ | |
2824 | or a specified location (same args as break command) within the current frame.")); | |
5ba2abeb | 2825 | set_cmd_completer (c, location_completer); |
c906108c | 2826 | add_com_alias ("u", "until", class_run, 1); |
c5aa993b | 2827 | |
1bedd215 AC |
2828 | c = add_com ("advance", class_run, advance_command, _("\ |
2829 | Continue the program up to the given location (same form as args for break command).\n\ | |
2830 | Execution will also stop upon exit from the current stack frame.")); | |
ae66c1fc EZ |
2831 | set_cmd_completer (c, location_completer); |
2832 | ||
1bedd215 AC |
2833 | c = add_com ("jump", class_run, jump_command, _("\ |
2834 | Continue program being debugged at specified line or address.\n\ | |
c906108c | 2835 | Give as argument either LINENUM or *ADDR, where ADDR is an expression\n\ |
1bedd215 | 2836 | for an address to start at.")); |
5ba2abeb | 2837 | set_cmd_completer (c, location_completer); |
c906108c | 2838 | |
b83266a0 | 2839 | if (xdb_commands) |
c94fdfd0 | 2840 | { |
1bedd215 AC |
2841 | c = add_com ("go", class_run, go_command, _("\ |
2842 | Usage: go <location>\n\ | |
c906108c SS |
2843 | Continue program being debugged, stopping at specified line or \n\ |
2844 | address.\n\ | |
2845 | Give as argument either LINENUM or *ADDR, where ADDR is an \n\ | |
2846 | expression for an address to start at.\n\ | |
1bedd215 | 2847 | This command is a combination of tbreak and jump.")); |
5ba2abeb | 2848 | set_cmd_completer (c, location_completer); |
c94fdfd0 | 2849 | } |
b83266a0 | 2850 | |
c906108c | 2851 | if (xdb_commands) |
c5aa993b | 2852 | add_com_alias ("g", "go", class_run, 1); |
c906108c | 2853 | |
8cae4b3f | 2854 | c = add_com ("continue", class_run, continue_command, _("\ |
1bedd215 | 2855 | Continue program being debugged, after signal or breakpoint.\n\ |
c906108c SS |
2856 | If proceeding from breakpoint, a number N may be used as an argument,\n\ |
2857 | which means to set the ignore count of that breakpoint to N - 1 (so that\n\ | |
8cae4b3f PA |
2858 | the breakpoint won't break until the Nth time it is reached).\n\ |
2859 | \n\ | |
2860 | If non-stop mode is enabled, continue only the current thread,\n\ | |
2861 | otherwise all the threads in the program are continued. To \n\ | |
2862 | continue all stopped threads in non-stop mode, use the -a option.\n\ | |
2863 | Specifying -a and an ignore count simultaneously is an error.")); | |
c906108c SS |
2864 | add_com_alias ("c", "cont", class_run, 1); |
2865 | add_com_alias ("fg", "cont", class_run, 1); | |
2866 | ||
1bedd215 AC |
2867 | c = add_com ("run", class_run, run_command, _("\ |
2868 | Start debugged program. You may specify arguments to give it.\n\ | |
c906108c SS |
2869 | Args may include \"*\", or \"[...]\"; they are expanded using \"sh\".\n\ |
2870 | Input and output redirection with \">\", \"<\", or \">>\" are also allowed.\n\n\ | |
2871 | With no arguments, uses arguments last specified (with \"run\" or \"set args\").\n\ | |
2872 | To cancel previous arguments and run with no arguments,\n\ | |
1bedd215 | 2873 | use \"set args\" without arguments.")); |
5ba2abeb | 2874 | set_cmd_completer (c, filename_completer); |
c906108c SS |
2875 | add_com_alias ("r", "run", class_run, 1); |
2876 | if (xdb_commands) | |
2877 | add_com ("R", class_run, run_no_args_command, | |
1bedd215 | 2878 | _("Start debugged program with no arguments.")); |
c906108c | 2879 | |
1bedd215 | 2880 | c = add_com ("start", class_run, start_command, _("\ |
a4d5f2e0 JB |
2881 | Run the debugged program until the beginning of the main procedure.\n\ |
2882 | You may specify arguments to give to your program, just as with the\n\ | |
1bedd215 | 2883 | \"run\" command.")); |
a4d5f2e0 JB |
2884 | set_cmd_completer (c, filename_completer); |
2885 | ||
700b53b1 | 2886 | c = add_com ("interrupt", class_run, interrupt_target_command, |
8cae4b3f PA |
2887 | _("Interrupt the execution of the debugged program.\n\ |
2888 | If non-stop mode is enabled, interrupt only the current thread,\n\ | |
2889 | otherwise all the threads in the program are stopped. To \n\ | |
2890 | interrupt all running threads in non-stop mode, use the -a option.")); | |
43ff13b4 | 2891 | |
1bedd215 AC |
2892 | add_info ("registers", nofp_registers_info, _("\ |
2893 | List of integer registers and their contents, for selected stack frame.\n\ | |
2894 | Register name as argument means describe only that register.")); | |
7194c49b | 2895 | add_info_alias ("r", "registers", 1); |
c906108c SS |
2896 | |
2897 | if (xdb_commands) | |
1bedd215 AC |
2898 | add_com ("lr", class_info, nofp_registers_info, _("\ |
2899 | List of integer registers and their contents, for selected stack frame.\n\ | |
2900 | Register name as argument means describe only that register.")); | |
2901 | add_info ("all-registers", all_registers_info, _("\ | |
2902 | List of all registers and their contents, for selected stack frame.\n\ | |
2903 | Register name as argument means describe only that register.")); | |
c906108c SS |
2904 | |
2905 | add_info ("program", program_info, | |
1bedd215 | 2906 | _("Execution status of the program.")); |
c906108c SS |
2907 | |
2908 | add_info ("float", float_info, | |
1bedd215 | 2909 | _("Print the status of the floating point unit\n")); |
c906108c | 2910 | |
e76f1f2e | 2911 | add_info ("vector", vector_info, |
1bedd215 | 2912 | _("Print the status of the vector unit\n")); |
c906108c | 2913 | } |