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) | |
756 | bs = tp->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 | ||
888 | if (!tp || !tp->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 (); | |
414c69f7 | 938 | if (tp->step_multi && tp->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, | |
4e1c45ea | 996 | &tp->step_range_start, &tp->step_range_end); |
5fbbeb29 CF |
997 | |
998 | /* If we have no line info, switch to stepi mode. */ | |
4e1c45ea | 999 | if (tp->step_range_end == 0 && step_stop_if_no_debug) |
edb3359d | 1000 | tp->step_range_start = tp->step_range_end = 1; |
4e1c45ea | 1001 | else if (tp->step_range_end == 0) |
c906108c SS |
1002 | { |
1003 | char *name; | |
abbb1732 | 1004 | |
1641cfcc | 1005 | if (find_pc_partial_function (pc, &name, |
4e1c45ea PA |
1006 | &tp->step_range_start, |
1007 | &tp->step_range_end) == 0) | |
8a3fe4f8 | 1008 | error (_("Cannot find bounds of current function")); |
c906108c SS |
1009 | |
1010 | target_terminal_ours (); | |
a3f17187 | 1011 | printf_filtered (_("\ |
c906108c | 1012 | Single stepping until exit from function %s, \n\ |
a3f17187 | 1013 | which has no line number information.\n"), name); |
c906108c SS |
1014 | } |
1015 | } | |
1016 | else | |
1017 | { | |
1018 | /* Say we are stepping, but stop after one insn whatever it does. */ | |
4e1c45ea | 1019 | tp->step_range_start = tp->step_range_end = 1; |
c906108c SS |
1020 | if (!skip_subroutines) |
1021 | /* It is stepi. | |
1022 | Don't step over function calls, not even to functions lacking | |
1023 | line numbers. */ | |
078130d0 | 1024 | tp->step_over_calls = STEP_OVER_NONE; |
c906108c SS |
1025 | } |
1026 | ||
1027 | if (skip_subroutines) | |
078130d0 | 1028 | tp->step_over_calls = STEP_OVER_ALL; |
c906108c | 1029 | |
95e54da7 | 1030 | tp->step_multi = (count > 1); |
f107f563 | 1031 | proceed ((CORE_ADDR) -1, TARGET_SIGNAL_DEFAULT, 1); |
bfec99b2 | 1032 | |
37d94800 PA |
1033 | /* For async targets, register a continuation to do any |
1034 | additional steps. For sync targets, the caller will handle | |
1035 | further stepping. */ | |
1036 | if (target_can_async_p ()) | |
1037 | { | |
1038 | struct step_1_continuation_args *args; | |
1039 | ||
1040 | args = xmalloc (sizeof (*args)); | |
1041 | args->skip_subroutines = skip_subroutines; | |
1042 | args->single_inst = single_inst; | |
1043 | args->count = count; | |
1044 | args->thread = thread; | |
1045 | ||
1046 | add_intermediate_continuation (tp, step_1_continuation, args, xfree); | |
1047 | } | |
c906108c | 1048 | } |
c906108c | 1049 | } |
c2d11a7d | 1050 | |
c906108c SS |
1051 | \f |
1052 | /* Continue program at specified address. */ | |
1053 | ||
1054 | static void | |
fba45db2 | 1055 | jump_command (char *arg, int from_tty) |
c906108c | 1056 | { |
5af949e3 | 1057 | struct gdbarch *gdbarch = get_current_arch (); |
52f0bd74 | 1058 | CORE_ADDR addr; |
c906108c SS |
1059 | struct symtabs_and_lines sals; |
1060 | struct symtab_and_line sal; | |
1061 | struct symbol *fn; | |
1062 | struct symbol *sfn; | |
43ff13b4 | 1063 | int async_exec = 0; |
c5aa993b | 1064 | |
c906108c | 1065 | ERROR_NO_INFERIOR; |
573cda03 | 1066 | ensure_not_tfind_mode (); |
d729566a | 1067 | ensure_valid_thread (); |
94cc34af | 1068 | ensure_not_running (); |
c906108c | 1069 | |
43ff13b4 JM |
1070 | /* Find out whether we must run in the background. */ |
1071 | if (arg != NULL) | |
1072 | async_exec = strip_bg_char (&arg); | |
1073 | ||
1074 | /* If we must run in the background, but the target can't do it, | |
1075 | error out. */ | |
362646f5 | 1076 | if (async_exec && !target_can_async_p ()) |
8a3fe4f8 | 1077 | error (_("Asynchronous execution not supported on this target.")); |
43ff13b4 | 1078 | |
c906108c | 1079 | if (!arg) |
e2e0b3e5 | 1080 | error_no_arg (_("starting address")); |
c906108c SS |
1081 | |
1082 | sals = decode_line_spec_1 (arg, 1); | |
1083 | if (sals.nelts != 1) | |
1084 | { | |
8a3fe4f8 | 1085 | error (_("Unreasonable jump request")); |
c906108c SS |
1086 | } |
1087 | ||
1088 | sal = sals.sals[0]; | |
b8c9b27d | 1089 | xfree (sals.sals); |
c906108c SS |
1090 | |
1091 | if (sal.symtab == 0 && sal.pc == 0) | |
8a3fe4f8 | 1092 | error (_("No source file has been specified.")); |
c906108c | 1093 | |
c5aa993b | 1094 | resolve_sal_pc (&sal); /* May error out */ |
c906108c SS |
1095 | |
1096 | /* See if we are trying to jump to another function. */ | |
1097 | fn = get_frame_function (get_current_frame ()); | |
1098 | sfn = find_pc_function (sal.pc); | |
1099 | if (fn != NULL && sfn != fn) | |
1100 | { | |
9e2f0ad4 | 1101 | if (!query (_("Line %d is not in `%s'. Jump anyway? "), sal.line, |
de5ad195 | 1102 | SYMBOL_PRINT_NAME (fn))) |
c906108c | 1103 | { |
8a3fe4f8 | 1104 | error (_("Not confirmed.")); |
c906108c SS |
1105 | /* NOTREACHED */ |
1106 | } | |
1107 | } | |
1108 | ||
c5aa993b | 1109 | if (sfn != NULL) |
c906108c SS |
1110 | { |
1111 | fixup_symbol_section (sfn, 0); | |
714835d5 UW |
1112 | if (section_is_overlay (SYMBOL_OBJ_SECTION (sfn)) && |
1113 | !section_is_mapped (SYMBOL_OBJ_SECTION (sfn))) | |
c906108c | 1114 | { |
9e2f0ad4 | 1115 | if (!query (_("WARNING!!! Destination is in unmapped overlay! Jump anyway? "))) |
c906108c | 1116 | { |
8a3fe4f8 | 1117 | error (_("Not confirmed.")); |
c906108c SS |
1118 | /* NOTREACHED */ |
1119 | } | |
1120 | } | |
1121 | } | |
1122 | ||
c906108c SS |
1123 | addr = sal.pc; |
1124 | ||
1125 | if (from_tty) | |
1126 | { | |
a3f17187 | 1127 | printf_filtered (_("Continuing at ")); |
5af949e3 | 1128 | fputs_filtered (paddress (gdbarch, addr), gdb_stdout); |
c906108c SS |
1129 | printf_filtered (".\n"); |
1130 | } | |
1131 | ||
89113898 PA |
1132 | /* If we are not asked to run in the bg, then prepare to run in the |
1133 | foreground, synchronously. */ | |
1134 | if (!async_exec && target_can_async_p ()) | |
1135 | { | |
1136 | /* Simulate synchronous execution */ | |
1137 | async_disable_stdin (); | |
1138 | } | |
1139 | ||
c906108c SS |
1140 | clear_proceed_status (); |
1141 | proceed (addr, TARGET_SIGNAL_0, 0); | |
1142 | } | |
c906108c | 1143 | \f |
c5aa993b | 1144 | |
c906108c SS |
1145 | /* Go to line or address in current procedure */ |
1146 | static void | |
fba45db2 | 1147 | go_command (char *line_no, int from_tty) |
c906108c | 1148 | { |
c5aa993b | 1149 | if (line_no == (char *) NULL || !*line_no) |
f42429a6 | 1150 | printf_filtered (_("Usage: go <location>\n")); |
c906108c SS |
1151 | else |
1152 | { | |
b83266a0 SS |
1153 | tbreak_command (line_no, from_tty); |
1154 | jump_command (line_no, from_tty); | |
c906108c SS |
1155 | } |
1156 | } | |
c906108c | 1157 | \f |
c5aa993b | 1158 | |
c906108c SS |
1159 | /* Continue program giving it specified signal. */ |
1160 | ||
1161 | static void | |
fba45db2 | 1162 | signal_command (char *signum_exp, int from_tty) |
c906108c SS |
1163 | { |
1164 | enum target_signal oursig; | |
32c1e744 | 1165 | int async_exec = 0; |
c906108c SS |
1166 | |
1167 | dont_repeat (); /* Too dangerous. */ | |
1168 | ERROR_NO_INFERIOR; | |
573cda03 | 1169 | ensure_not_tfind_mode (); |
d729566a | 1170 | ensure_valid_thread (); |
94cc34af | 1171 | ensure_not_running (); |
c906108c | 1172 | |
32c1e744 VP |
1173 | /* Find out whether we must run in the background. */ |
1174 | if (signum_exp != NULL) | |
1175 | async_exec = strip_bg_char (&signum_exp); | |
1176 | ||
1177 | /* If we must run in the background, but the target can't do it, | |
1178 | error out. */ | |
1179 | if (async_exec && !target_can_async_p ()) | |
1180 | error (_("Asynchronous execution not supported on this target.")); | |
1181 | ||
1182 | /* If we are not asked to run in the bg, then prepare to run in the | |
1183 | foreground, synchronously. */ | |
1184 | if (!async_exec && target_can_async_p ()) | |
1185 | { | |
1186 | /* Simulate synchronous execution. */ | |
1187 | async_disable_stdin (); | |
1188 | } | |
1189 | ||
c906108c | 1190 | if (!signum_exp) |
e2e0b3e5 | 1191 | error_no_arg (_("signal number")); |
c906108c SS |
1192 | |
1193 | /* It would be even slicker to make signal names be valid expressions, | |
1194 | (the type could be "enum $signal" or some such), then the user could | |
1195 | assign them to convenience variables. */ | |
1196 | oursig = target_signal_from_name (signum_exp); | |
1197 | ||
1198 | if (oursig == TARGET_SIGNAL_UNKNOWN) | |
1199 | { | |
1200 | /* No, try numeric. */ | |
bb518678 | 1201 | int num = parse_and_eval_long (signum_exp); |
c906108c SS |
1202 | |
1203 | if (num == 0) | |
1204 | oursig = TARGET_SIGNAL_0; | |
1205 | else | |
1206 | oursig = target_signal_from_command (num); | |
1207 | } | |
1208 | ||
1209 | if (from_tty) | |
1210 | { | |
1211 | if (oursig == TARGET_SIGNAL_0) | |
a3f17187 | 1212 | printf_filtered (_("Continuing with no signal.\n")); |
c906108c | 1213 | else |
a3f17187 | 1214 | printf_filtered (_("Continuing with signal %s.\n"), |
c906108c SS |
1215 | target_signal_to_name (oursig)); |
1216 | } | |
1217 | ||
1218 | clear_proceed_status (); | |
a12cc160 | 1219 | proceed ((CORE_ADDR) -1, oursig, 0); |
c906108c SS |
1220 | } |
1221 | ||
c906108c SS |
1222 | /* Proceed until we reach a different source line with pc greater than |
1223 | our current one or exit the function. We skip calls in both cases. | |
1224 | ||
1225 | Note that eventually this command should probably be changed so | |
1226 | that only source lines are printed out when we hit the breakpoint | |
1227 | we set. This may involve changes to wait_for_inferior and the | |
1228 | proceed status code. */ | |
1229 | ||
c906108c | 1230 | static void |
fba45db2 | 1231 | until_next_command (int from_tty) |
c906108c SS |
1232 | { |
1233 | struct frame_info *frame; | |
1234 | CORE_ADDR pc; | |
1235 | struct symbol *func; | |
1236 | struct symtab_and_line sal; | |
4e1c45ea | 1237 | struct thread_info *tp = inferior_thread (); |
c5aa993b | 1238 | |
c906108c | 1239 | clear_proceed_status (); |
edb3359d | 1240 | set_step_frame (); |
c906108c SS |
1241 | |
1242 | frame = get_current_frame (); | |
1243 | ||
1244 | /* Step until either exited from this function or greater | |
1245 | than the current line (if in symbolic section) or pc (if | |
1246 | not). */ | |
1247 | ||
1c7819ef | 1248 | pc = get_frame_pc (frame); |
c906108c | 1249 | func = find_pc_function (pc); |
c5aa993b | 1250 | |
c906108c SS |
1251 | if (!func) |
1252 | { | |
1253 | struct minimal_symbol *msymbol = lookup_minimal_symbol_by_pc (pc); | |
c5aa993b | 1254 | |
c906108c | 1255 | if (msymbol == NULL) |
8a3fe4f8 | 1256 | error (_("Execution is not within a known function.")); |
c5aa993b | 1257 | |
4e1c45ea PA |
1258 | tp->step_range_start = SYMBOL_VALUE_ADDRESS (msymbol); |
1259 | tp->step_range_end = pc; | |
c906108c SS |
1260 | } |
1261 | else | |
1262 | { | |
1263 | sal = find_pc_line (pc, 0); | |
c5aa993b | 1264 | |
4e1c45ea PA |
1265 | tp->step_range_start = BLOCK_START (SYMBOL_BLOCK_VALUE (func)); |
1266 | tp->step_range_end = sal.end; | |
c906108c | 1267 | } |
c5aa993b | 1268 | |
078130d0 | 1269 | tp->step_over_calls = STEP_OVER_ALL; |
c906108c | 1270 | |
af679fd0 | 1271 | tp->step_multi = 0; /* Only one call to proceed */ |
c5aa993b | 1272 | |
2acceee2 | 1273 | proceed ((CORE_ADDR) -1, TARGET_SIGNAL_DEFAULT, 1); |
c906108c SS |
1274 | } |
1275 | ||
c5aa993b | 1276 | static void |
fba45db2 | 1277 | until_command (char *arg, int from_tty) |
c906108c | 1278 | { |
43ff13b4 JM |
1279 | int async_exec = 0; |
1280 | ||
4247603b | 1281 | ERROR_NO_INFERIOR; |
573cda03 | 1282 | ensure_not_tfind_mode (); |
4247603b PA |
1283 | ensure_valid_thread (); |
1284 | ensure_not_running (); | |
573cda03 | 1285 | |
43ff13b4 JM |
1286 | /* Find out whether we must run in the background. */ |
1287 | if (arg != NULL) | |
1288 | async_exec = strip_bg_char (&arg); | |
1289 | ||
1290 | /* If we must run in the background, but the target can't do it, | |
1291 | error out. */ | |
362646f5 | 1292 | if (async_exec && !target_can_async_p ()) |
8a3fe4f8 | 1293 | error (_("Asynchronous execution not supported on this target.")); |
43ff13b4 JM |
1294 | |
1295 | /* If we are not asked to run in the bg, then prepare to run in the | |
1296 | foreground, synchronously. */ | |
362646f5 | 1297 | if (!async_exec && target_can_async_p ()) |
c5aa993b | 1298 | { |
43ff13b4 | 1299 | /* Simulate synchronous execution */ |
6426a772 | 1300 | async_disable_stdin (); |
43ff13b4 JM |
1301 | } |
1302 | ||
c906108c | 1303 | if (arg) |
ae66c1fc | 1304 | until_break_command (arg, from_tty, 0); |
c906108c SS |
1305 | else |
1306 | until_next_command (from_tty); | |
1307 | } | |
ae66c1fc EZ |
1308 | |
1309 | static void | |
1310 | advance_command (char *arg, int from_tty) | |
1311 | { | |
1312 | int async_exec = 0; | |
1313 | ||
4247603b | 1314 | ERROR_NO_INFERIOR; |
573cda03 | 1315 | ensure_not_tfind_mode (); |
4247603b PA |
1316 | ensure_valid_thread (); |
1317 | ensure_not_running (); | |
573cda03 | 1318 | |
ae66c1fc | 1319 | if (arg == NULL) |
e2e0b3e5 | 1320 | error_no_arg (_("a location")); |
ae66c1fc EZ |
1321 | |
1322 | /* Find out whether we must run in the background. */ | |
1323 | if (arg != NULL) | |
1324 | async_exec = strip_bg_char (&arg); | |
1325 | ||
1326 | /* If we must run in the background, but the target can't do it, | |
1327 | error out. */ | |
362646f5 | 1328 | if (async_exec && !target_can_async_p ()) |
8a3fe4f8 | 1329 | error (_("Asynchronous execution not supported on this target.")); |
ae66c1fc EZ |
1330 | |
1331 | /* If we are not asked to run in the bg, then prepare to run in the | |
1332 | foreground, synchronously. */ | |
362646f5 | 1333 | if (!async_exec && target_can_async_p ()) |
ae66c1fc EZ |
1334 | { |
1335 | /* Simulate synchronous execution. */ | |
1336 | async_disable_stdin (); | |
1337 | } | |
1338 | ||
1339 | until_break_command (arg, from_tty, 1); | |
1340 | } | |
c906108c | 1341 | \f |
f941662f MK |
1342 | /* Print the result of a function at the end of a 'finish' command. */ |
1343 | ||
11cf8741 | 1344 | static void |
c055b101 | 1345 | print_return_value (struct type *func_type, struct type *value_type) |
11cf8741 | 1346 | { |
d80b854b | 1347 | struct gdbarch *gdbarch = get_regcache_arch (stop_registers); |
bb472c1e MK |
1348 | struct cleanup *old_chain; |
1349 | struct ui_stream *stb; | |
44e5158b AC |
1350 | struct value *value; |
1351 | ||
181fc57c | 1352 | CHECK_TYPEDEF (value_type); |
44e5158b | 1353 | gdb_assert (TYPE_CODE (value_type) != TYPE_CODE_VOID); |
11cf8741 | 1354 | |
92ad9cd9 AC |
1355 | /* FIXME: 2003-09-27: When returning from a nested inferior function |
1356 | call, it's possible (with no help from the architecture vector) | |
1357 | to locate and return/print a "struct return" value. This is just | |
1358 | a more complicated case of what is already being done in in the | |
1359 | inferior function call code. In fact, when inferior function | |
1360 | calls are made async, this will likely be made the norm. */ | |
31db7b6c | 1361 | |
c055b101 CV |
1362 | switch (gdbarch_return_value (gdbarch, func_type, value_type, |
1363 | NULL, NULL, NULL)) | |
44e5158b | 1364 | { |
750eb019 AC |
1365 | case RETURN_VALUE_REGISTER_CONVENTION: |
1366 | case RETURN_VALUE_ABI_RETURNS_ADDRESS: | |
181fc57c | 1367 | case RETURN_VALUE_ABI_PRESERVES_ADDRESS: |
44e5158b | 1368 | value = allocate_value (value_type); |
c055b101 | 1369 | gdbarch_return_value (gdbarch, func_type, value_type, stop_registers, |
990a07ab | 1370 | value_contents_raw (value), NULL); |
750eb019 AC |
1371 | break; |
1372 | case RETURN_VALUE_STRUCT_CONVENTION: | |
1373 | value = NULL; | |
1374 | break; | |
1375 | default: | |
e2e0b3e5 | 1376 | internal_error (__FILE__, __LINE__, _("bad switch")); |
44e5158b | 1377 | } |
bb472c1e | 1378 | |
31db7b6c MK |
1379 | if (value) |
1380 | { | |
79a45b7d TT |
1381 | struct value_print_options opts; |
1382 | ||
31db7b6c | 1383 | /* Print it. */ |
1d751abe PA |
1384 | stb = ui_out_stream_new (uiout); |
1385 | old_chain = make_cleanup_ui_out_stream_delete (stb); | |
31db7b6c MK |
1386 | ui_out_text (uiout, "Value returned is "); |
1387 | ui_out_field_fmt (uiout, "gdb-result-var", "$%d", | |
1388 | record_latest_value (value)); | |
1389 | ui_out_text (uiout, " = "); | |
79a45b7d TT |
1390 | get_raw_print_options (&opts); |
1391 | value_print (value, stb->stream, &opts); | |
31db7b6c MK |
1392 | ui_out_field_stream (uiout, "return-value", stb); |
1393 | ui_out_text (uiout, "\n"); | |
1d751abe | 1394 | do_cleanups (old_chain); |
31db7b6c MK |
1395 | } |
1396 | else | |
1397 | { | |
1398 | ui_out_text (uiout, "Value returned has type: "); | |
1d751abe PA |
1399 | ui_out_field_string (uiout, "return-type", TYPE_NAME (value_type)); |
1400 | ui_out_text (uiout, "."); | |
1401 | ui_out_text (uiout, " Cannot determine contents\n"); | |
31db7b6c | 1402 | } |
11cf8741 JM |
1403 | } |
1404 | ||
43ff13b4 | 1405 | /* Stuff that needs to be done by the finish command after the target |
f941662f MK |
1406 | has stopped. In asynchronous mode, we wait for the target to stop |
1407 | in the call to poll or select in the event loop, so it is | |
1408 | impossible to do all the stuff as part of the finish_command | |
1409 | function itself. The only chance we have to complete this command | |
1410 | is in fetch_inferior_event, which is called by the event loop as | |
1411 | soon as it detects that the target has stopped. This function is | |
1412 | called via the cmd_continuation pointer. */ | |
1413 | ||
bfec99b2 | 1414 | struct finish_command_continuation_args |
43ff13b4 | 1415 | { |
43ff13b4 | 1416 | struct breakpoint *breakpoint; |
bfec99b2 PA |
1417 | struct symbol *function; |
1418 | }; | |
c5aa993b | 1419 | |
bfec99b2 | 1420 | static void |
604ead4a | 1421 | finish_command_continuation (void *arg) |
bfec99b2 PA |
1422 | { |
1423 | struct finish_command_continuation_args *a = arg; | |
41d2bdb4 | 1424 | struct thread_info *tp = NULL; |
347bddb7 PA |
1425 | bpstat bs = NULL; |
1426 | ||
1427 | if (!ptid_equal (inferior_ptid, null_ptid) | |
1428 | && target_has_execution | |
1429 | && is_stopped (inferior_ptid)) | |
41d2bdb4 PA |
1430 | { |
1431 | tp = inferior_thread (); | |
1432 | bs = tp->stop_bpstat; | |
1433 | } | |
347bddb7 PA |
1434 | |
1435 | if (bpstat_find_breakpoint (bs, a->breakpoint) != NULL | |
604ead4a | 1436 | && a->function != NULL) |
43ff13b4 | 1437 | { |
604ead4a | 1438 | struct type *value_type; |
bfec99b2 | 1439 | |
604ead4a PA |
1440 | value_type = TYPE_TARGET_TYPE (SYMBOL_TYPE (a->function)); |
1441 | if (!value_type) | |
1442 | internal_error (__FILE__, __LINE__, | |
1443 | _("finish_command: function has no target type")); | |
f5871ec0 | 1444 | |
604ead4a | 1445 | if (TYPE_CODE (value_type) != TYPE_CODE_VOID) |
40c549d6 TT |
1446 | { |
1447 | volatile struct gdb_exception ex; | |
1448 | ||
1449 | TRY_CATCH (ex, RETURN_MASK_ALL) | |
1450 | { | |
1451 | /* print_return_value can throw an exception in some | |
1452 | circumstances. We need to catch this so that we still | |
1453 | delete the breakpoint. */ | |
1454 | print_return_value (SYMBOL_TYPE (a->function), value_type); | |
1455 | } | |
1456 | if (ex.reason < 0) | |
1457 | exception_print (gdb_stdout, ex); | |
1458 | } | |
43ff13b4 | 1459 | } |
f941662f | 1460 | |
604ead4a | 1461 | /* We suppress normal call of normal_stop observer and do it here so |
41d2bdb4 PA |
1462 | that the *stopped notification includes the return value. */ |
1463 | if (bs != NULL && tp->proceed_to_finish) | |
1464 | observer_notify_normal_stop (bs, 1 /* print frame */); | |
bfec99b2 | 1465 | delete_breakpoint (a->breakpoint); |
43ff13b4 JM |
1466 | } |
1467 | ||
604ead4a PA |
1468 | static void |
1469 | finish_command_continuation_free_arg (void *arg) | |
1470 | { | |
604ead4a PA |
1471 | xfree (arg); |
1472 | } | |
1473 | ||
b2175913 MS |
1474 | /* finish_backward -- helper function for finish_command. */ |
1475 | ||
1476 | static void | |
1477 | finish_backward (struct symbol *function) | |
1478 | { | |
1479 | struct symtab_and_line sal; | |
1480 | struct thread_info *tp = inferior_thread (); | |
1481 | struct breakpoint *breakpoint; | |
1482 | struct cleanup *old_chain; | |
1c7819ef | 1483 | CORE_ADDR pc; |
b2175913 MS |
1484 | CORE_ADDR func_addr; |
1485 | int back_up; | |
1486 | ||
1c7819ef PA |
1487 | pc = get_frame_pc (get_current_frame ()); |
1488 | ||
1489 | if (find_pc_partial_function (pc, NULL, &func_addr, NULL) == 0) | |
b2175913 MS |
1490 | internal_error (__FILE__, __LINE__, |
1491 | _("Finish: couldn't find function.")); | |
1492 | ||
1493 | sal = find_pc_line (func_addr, 0); | |
1494 | ||
1495 | /* We don't need a return value. */ | |
1496 | tp->proceed_to_finish = 0; | |
1497 | /* Special case: if we're sitting at the function entry point, | |
1498 | then all we need to do is take a reverse singlestep. We | |
1499 | don't need to set a breakpoint, and indeed it would do us | |
1500 | no good to do so. | |
1501 | ||
1502 | Note that this can only happen at frame #0, since there's | |
1503 | no way that a function up the stack can have a return address | |
1504 | that's equal to its entry point. */ | |
1505 | ||
1c7819ef | 1506 | if (sal.pc != pc) |
b2175913 | 1507 | { |
a6d9a66e UW |
1508 | struct frame_info *frame = get_selected_frame (NULL); |
1509 | struct gdbarch *gdbarch = get_frame_arch (frame); | |
1510 | ||
b2175913 MS |
1511 | /* Set breakpoint and continue. */ |
1512 | breakpoint = | |
a6d9a66e UW |
1513 | set_momentary_breakpoint (gdbarch, sal, |
1514 | get_stack_frame_id (frame), | |
b2175913 MS |
1515 | bp_breakpoint); |
1516 | /* Tell the breakpoint to keep quiet. We won't be done | |
1517 | until we've done another reverse single-step. */ | |
1518 | make_breakpoint_silent (breakpoint); | |
1519 | old_chain = make_cleanup_delete_breakpoint (breakpoint); | |
1520 | proceed ((CORE_ADDR) -1, TARGET_SIGNAL_DEFAULT, 0); | |
1521 | /* We will be stopped when proceed returns. */ | |
1522 | back_up = bpstat_find_breakpoint (tp->stop_bpstat, breakpoint) != NULL; | |
1523 | do_cleanups (old_chain); | |
1524 | } | |
1525 | else | |
1526 | back_up = 1; | |
1527 | if (back_up) | |
1528 | { | |
1529 | /* If in fact we hit the step-resume breakpoint (and not | |
1530 | some other breakpoint), then we're almost there -- | |
1531 | we just need to back up by one more single-step. */ | |
1532 | tp->step_range_start = tp->step_range_end = 1; | |
1533 | proceed ((CORE_ADDR) -1, TARGET_SIGNAL_DEFAULT, 1); | |
1534 | } | |
1535 | return; | |
1536 | } | |
1537 | ||
1538 | /* finish_forward -- helper function for finish_command. */ | |
1539 | ||
1540 | static void | |
1541 | finish_forward (struct symbol *function, struct frame_info *frame) | |
1542 | { | |
a6d9a66e | 1543 | struct gdbarch *gdbarch = get_frame_arch (frame); |
b2175913 MS |
1544 | struct symtab_and_line sal; |
1545 | struct thread_info *tp = inferior_thread (); | |
1546 | struct breakpoint *breakpoint; | |
1547 | struct cleanup *old_chain; | |
1548 | struct finish_command_continuation_args *cargs; | |
1549 | ||
1550 | sal = find_pc_line (get_frame_pc (frame), 0); | |
1551 | sal.pc = get_frame_pc (frame); | |
1552 | ||
a6d9a66e UW |
1553 | breakpoint = set_momentary_breakpoint (gdbarch, sal, |
1554 | get_stack_frame_id (frame), | |
b2175913 MS |
1555 | bp_finish); |
1556 | ||
1557 | old_chain = make_cleanup_delete_breakpoint (breakpoint); | |
1558 | ||
1559 | tp->proceed_to_finish = 1; /* We want stop_registers, please... */ | |
b2175913 MS |
1560 | cargs = xmalloc (sizeof (*cargs)); |
1561 | ||
1562 | cargs->breakpoint = breakpoint; | |
1563 | cargs->function = function; | |
1564 | add_continuation (tp, finish_command_continuation, cargs, | |
1565 | finish_command_continuation_free_arg); | |
6c95b8df | 1566 | proceed ((CORE_ADDR) -1, TARGET_SIGNAL_DEFAULT, 0); |
b2175913 MS |
1567 | |
1568 | discard_cleanups (old_chain); | |
1569 | if (!target_can_async_p ()) | |
1570 | do_all_continuations (); | |
1571 | } | |
1572 | ||
f941662f MK |
1573 | /* "finish": Set a temporary breakpoint at the place the selected |
1574 | frame will return to, then continue. */ | |
c906108c SS |
1575 | |
1576 | static void | |
fba45db2 | 1577 | finish_command (char *arg, int from_tty) |
c906108c | 1578 | { |
52f0bd74 AC |
1579 | struct frame_info *frame; |
1580 | struct symbol *function; | |
43ff13b4 JM |
1581 | |
1582 | int async_exec = 0; | |
1583 | ||
4247603b | 1584 | ERROR_NO_INFERIOR; |
573cda03 | 1585 | ensure_not_tfind_mode (); |
4247603b PA |
1586 | ensure_valid_thread (); |
1587 | ensure_not_running (); | |
573cda03 | 1588 | |
f941662f | 1589 | /* Find out whether we must run in the background. */ |
43ff13b4 JM |
1590 | if (arg != NULL) |
1591 | async_exec = strip_bg_char (&arg); | |
1592 | ||
1593 | /* If we must run in the background, but the target can't do it, | |
f941662f | 1594 | error out. */ |
362646f5 | 1595 | if (async_exec && !target_can_async_p ()) |
8a3fe4f8 | 1596 | error (_("Asynchronous execution not supported on this target.")); |
43ff13b4 | 1597 | |
b2175913 MS |
1598 | /* Don't try to async in reverse. */ |
1599 | if (async_exec && execution_direction == EXEC_REVERSE) | |
1600 | error (_("Asynchronous 'finish' not supported in reverse.")); | |
1601 | ||
43ff13b4 | 1602 | /* If we are not asked to run in the bg, then prepare to run in the |
f941662f | 1603 | foreground, synchronously. */ |
362646f5 | 1604 | if (!async_exec && target_can_async_p ()) |
c5aa993b | 1605 | { |
f941662f | 1606 | /* Simulate synchronous execution. */ |
6426a772 | 1607 | async_disable_stdin (); |
43ff13b4 | 1608 | } |
c906108c SS |
1609 | |
1610 | if (arg) | |
8a3fe4f8 | 1611 | error (_("The \"finish\" command does not take any arguments.")); |
c906108c | 1612 | |
206415a3 | 1613 | frame = get_prev_frame (get_selected_frame (_("No selected frame."))); |
c906108c | 1614 | if (frame == 0) |
8a3fe4f8 | 1615 | error (_("\"finish\" not meaningful in the outermost frame.")); |
c906108c SS |
1616 | |
1617 | clear_proceed_status (); | |
1618 | ||
edb3359d DJ |
1619 | /* Finishing from an inline frame is completely different. We don't |
1620 | try to show the "return value" - no way to locate it. So we do | |
1621 | not need a completion. */ | |
1622 | if (get_frame_type (get_selected_frame (_("No selected frame."))) | |
1623 | == INLINE_FRAME) | |
1624 | { | |
1625 | /* Claim we are stepping in the calling frame. An empty step | |
1626 | range means that we will stop once we aren't in a function | |
1627 | called by that frame. We don't use the magic "1" value for | |
1628 | step_range_end, because then infrun will think this is nexti, | |
1629 | and not step over the rest of this inlined function call. */ | |
1630 | struct thread_info *tp = inferior_thread (); | |
1631 | struct symtab_and_line empty_sal; | |
abbb1732 | 1632 | |
edb3359d DJ |
1633 | init_sal (&empty_sal); |
1634 | set_step_info (frame, empty_sal); | |
1635 | tp->step_range_start = tp->step_range_end = get_frame_pc (frame); | |
1636 | tp->step_over_calls = STEP_OVER_ALL; | |
1637 | ||
1638 | /* Print info on the selected frame, including level number but not | |
1639 | source. */ | |
1640 | if (from_tty) | |
1641 | { | |
1642 | printf_filtered (_("Run till exit from ")); | |
1643 | print_stack_frame (get_selected_frame (NULL), 1, LOCATION); | |
1644 | } | |
1645 | ||
1646 | proceed ((CORE_ADDR) -1, TARGET_SIGNAL_DEFAULT, 1); | |
1647 | return; | |
1648 | } | |
1649 | ||
c906108c SS |
1650 | /* Find the function we will return from. */ |
1651 | ||
206415a3 | 1652 | function = find_pc_function (get_frame_pc (get_selected_frame (NULL))); |
c906108c | 1653 | |
f941662f MK |
1654 | /* Print info on the selected frame, including level number but not |
1655 | source. */ | |
c906108c SS |
1656 | if (from_tty) |
1657 | { | |
b2175913 MS |
1658 | if (execution_direction == EXEC_REVERSE) |
1659 | printf_filtered (_("Run back to call of ")); | |
1660 | else | |
1661 | printf_filtered (_("Run till exit from ")); | |
1662 | ||
b04f3ab4 | 1663 | print_stack_frame (get_selected_frame (NULL), 1, LOCATION); |
c906108c SS |
1664 | } |
1665 | ||
b2175913 MS |
1666 | if (execution_direction == EXEC_REVERSE) |
1667 | finish_backward (function); | |
1668 | else | |
1669 | finish_forward (function, frame); | |
c906108c SS |
1670 | } |
1671 | \f | |
f941662f | 1672 | |
c906108c | 1673 | static void |
fba45db2 | 1674 | program_info (char *args, int from_tty) |
c906108c | 1675 | { |
347bddb7 PA |
1676 | bpstat bs; |
1677 | int num, stat; | |
1678 | struct thread_info *tp; | |
1679 | ptid_t ptid; | |
c5aa993b | 1680 | |
c906108c SS |
1681 | if (!target_has_execution) |
1682 | { | |
a3f17187 | 1683 | printf_filtered (_("The program being debugged is not being run.\n")); |
c906108c SS |
1684 | return; |
1685 | } | |
1686 | ||
347bddb7 PA |
1687 | if (non_stop) |
1688 | ptid = inferior_ptid; | |
1689 | else | |
1690 | { | |
1691 | struct target_waitstatus ws; | |
abbb1732 | 1692 | |
347bddb7 PA |
1693 | get_last_target_status (&ptid, &ws); |
1694 | } | |
1695 | ||
1696 | if (ptid_equal (ptid, null_ptid) || is_exited (ptid)) | |
1697 | error (_("Invalid selected thread.")); | |
1698 | else if (is_running (ptid)) | |
1699 | error (_("Selected thread is running.")); | |
1700 | ||
e09875d4 | 1701 | tp = find_thread_ptid (ptid); |
347bddb7 PA |
1702 | bs = tp->stop_bpstat; |
1703 | stat = bpstat_num (&bs, &num); | |
1704 | ||
c906108c | 1705 | target_files_info (); |
5af949e3 UW |
1706 | printf_filtered (_("Program stopped at %s.\n"), |
1707 | paddress (target_gdbarch, stop_pc)); | |
414c69f7 | 1708 | if (tp->stop_step) |
a3f17187 | 1709 | printf_filtered (_("It stopped after being stepped.\n")); |
8671a17b | 1710 | else if (stat != 0) |
c906108c SS |
1711 | { |
1712 | /* There may be several breakpoints in the same place, so this | |
c5aa993b | 1713 | isn't as strange as it seems. */ |
8671a17b | 1714 | while (stat != 0) |
c906108c | 1715 | { |
8671a17b | 1716 | if (stat < 0) |
c906108c | 1717 | { |
a3f17187 AC |
1718 | printf_filtered (_("\ |
1719 | It stopped at a breakpoint that has since been deleted.\n")); | |
c906108c SS |
1720 | } |
1721 | else | |
a3f17187 | 1722 | printf_filtered (_("It stopped at breakpoint %d.\n"), num); |
8671a17b | 1723 | stat = bpstat_num (&bs, &num); |
c906108c SS |
1724 | } |
1725 | } | |
2020b7ab | 1726 | else if (tp->stop_signal != TARGET_SIGNAL_0) |
c906108c | 1727 | { |
a3f17187 | 1728 | printf_filtered (_("It stopped with signal %s, %s.\n"), |
2020b7ab PA |
1729 | target_signal_to_name (tp->stop_signal), |
1730 | target_signal_to_string (tp->stop_signal)); | |
c906108c SS |
1731 | } |
1732 | ||
1733 | if (!from_tty) | |
1734 | { | |
a3f17187 AC |
1735 | printf_filtered (_("\ |
1736 | Type \"info stack\" or \"info registers\" for more information.\n")); | |
c906108c SS |
1737 | } |
1738 | } | |
1739 | \f | |
1740 | static void | |
fba45db2 | 1741 | environment_info (char *var, int from_tty) |
c906108c SS |
1742 | { |
1743 | if (var) | |
1744 | { | |
3f81c18a | 1745 | char *val = get_in_environ (current_inferior ()->environment, var); |
abbb1732 | 1746 | |
c906108c SS |
1747 | if (val) |
1748 | { | |
1749 | puts_filtered (var); | |
1750 | puts_filtered (" = "); | |
1751 | puts_filtered (val); | |
1752 | puts_filtered ("\n"); | |
1753 | } | |
1754 | else | |
1755 | { | |
1756 | puts_filtered ("Environment variable \""); | |
1757 | puts_filtered (var); | |
1758 | puts_filtered ("\" not defined.\n"); | |
1759 | } | |
1760 | } | |
1761 | else | |
1762 | { | |
3f81c18a | 1763 | char **vector = environ_vector (current_inferior ()->environment); |
abbb1732 | 1764 | |
c906108c SS |
1765 | while (*vector) |
1766 | { | |
1767 | puts_filtered (*vector++); | |
1768 | puts_filtered ("\n"); | |
1769 | } | |
1770 | } | |
1771 | } | |
1772 | ||
1773 | static void | |
fba45db2 | 1774 | set_environment_command (char *arg, int from_tty) |
c906108c | 1775 | { |
52f0bd74 | 1776 | char *p, *val, *var; |
c906108c SS |
1777 | int nullset = 0; |
1778 | ||
1779 | if (arg == 0) | |
e2e0b3e5 | 1780 | error_no_arg (_("environment variable and value")); |
c906108c SS |
1781 | |
1782 | /* Find seperation between variable name and value */ | |
1783 | p = (char *) strchr (arg, '='); | |
1784 | val = (char *) strchr (arg, ' '); | |
1785 | ||
1786 | if (p != 0 && val != 0) | |
1787 | { | |
1788 | /* We have both a space and an equals. If the space is before the | |
c5aa993b JM |
1789 | equals, walk forward over the spaces til we see a nonspace |
1790 | (possibly the equals). */ | |
c906108c SS |
1791 | if (p > val) |
1792 | while (*val == ' ') | |
1793 | val++; | |
1794 | ||
1795 | /* Now if the = is after the char following the spaces, | |
c5aa993b | 1796 | take the char following the spaces. */ |
c906108c SS |
1797 | if (p > val) |
1798 | p = val - 1; | |
1799 | } | |
1800 | else if (val != 0 && p == 0) | |
1801 | p = val; | |
1802 | ||
1803 | if (p == arg) | |
e2e0b3e5 | 1804 | error_no_arg (_("environment variable to set")); |
c906108c SS |
1805 | |
1806 | if (p == 0 || p[1] == 0) | |
1807 | { | |
1808 | nullset = 1; | |
1809 | if (p == 0) | |
1810 | p = arg + strlen (arg); /* So that savestring below will work */ | |
1811 | } | |
1812 | else | |
1813 | { | |
1814 | /* Not setting variable value to null */ | |
1815 | val = p + 1; | |
1816 | while (*val == ' ' || *val == '\t') | |
1817 | val++; | |
1818 | } | |
1819 | ||
c5aa993b JM |
1820 | while (p != arg && (p[-1] == ' ' || p[-1] == '\t')) |
1821 | p--; | |
c906108c SS |
1822 | |
1823 | var = savestring (arg, p - arg); | |
1824 | if (nullset) | |
1825 | { | |
a3f17187 AC |
1826 | printf_filtered (_("\ |
1827 | Setting environment variable \"%s\" to null value.\n"), | |
1828 | var); | |
3f81c18a | 1829 | set_in_environ (current_inferior ()->environment, var, ""); |
c906108c SS |
1830 | } |
1831 | else | |
3f81c18a | 1832 | set_in_environ (current_inferior ()->environment, var, val); |
b8c9b27d | 1833 | xfree (var); |
c906108c SS |
1834 | } |
1835 | ||
1836 | static void | |
fba45db2 | 1837 | unset_environment_command (char *var, int from_tty) |
c906108c SS |
1838 | { |
1839 | if (var == 0) | |
1840 | { | |
1841 | /* If there is no argument, delete all environment variables. | |
c5aa993b | 1842 | Ask for confirmation if reading from the terminal. */ |
e2e0b3e5 | 1843 | if (!from_tty || query (_("Delete all environment variables? "))) |
c906108c | 1844 | { |
3f81c18a VP |
1845 | free_environ (current_inferior ()->environment); |
1846 | current_inferior ()->environment = make_environ (); | |
c906108c SS |
1847 | } |
1848 | } | |
1849 | else | |
3f81c18a | 1850 | unset_in_environ (current_inferior ()->environment, var); |
c906108c SS |
1851 | } |
1852 | ||
1853 | /* Handle the execution path (PATH variable) */ | |
1854 | ||
1855 | static const char path_var_name[] = "PATH"; | |
1856 | ||
c906108c | 1857 | static void |
fba45db2 | 1858 | path_info (char *args, int from_tty) |
c906108c SS |
1859 | { |
1860 | puts_filtered ("Executable and object file path: "); | |
3f81c18a | 1861 | puts_filtered (get_in_environ (current_inferior ()->environment, path_var_name)); |
c906108c SS |
1862 | puts_filtered ("\n"); |
1863 | } | |
1864 | ||
1865 | /* Add zero or more directories to the front of the execution path. */ | |
1866 | ||
1867 | static void | |
fba45db2 | 1868 | path_command (char *dirname, int from_tty) |
c906108c SS |
1869 | { |
1870 | char *exec_path; | |
1871 | char *env; | |
abbb1732 | 1872 | |
c906108c | 1873 | dont_repeat (); |
3f81c18a | 1874 | env = get_in_environ (current_inferior ()->environment, path_var_name); |
c906108c SS |
1875 | /* Can be null if path is not set */ |
1876 | if (!env) | |
1877 | env = ""; | |
4fcf66da | 1878 | exec_path = xstrdup (env); |
c906108c | 1879 | mod_path (dirname, &exec_path); |
3f81c18a | 1880 | set_in_environ (current_inferior ()->environment, path_var_name, exec_path); |
b8c9b27d | 1881 | xfree (exec_path); |
c906108c | 1882 | if (from_tty) |
c5aa993b | 1883 | path_info ((char *) NULL, from_tty); |
c906108c | 1884 | } |
c906108c | 1885 | \f |
c5aa993b | 1886 | |
4782dc19 | 1887 | /* Print out the machine register regnum. If regnum is -1, print all |
0ab7a791 AC |
1888 | registers (print_all == 1) or all non-float and non-vector |
1889 | registers (print_all == 0). | |
c906108c SS |
1890 | |
1891 | For most machines, having all_registers_info() print the | |
0ab7a791 AC |
1892 | register(s) one per line is good enough. If a different format is |
1893 | required, (eg, for MIPS or Pyramid 90x, which both have lots of | |
1894 | regs), or there is an existing convention for showing all the | |
1895 | registers, define the architecture method PRINT_REGISTERS_INFO to | |
1896 | provide that format. */ | |
c906108c | 1897 | |
666e11c5 | 1898 | void |
0ab7a791 AC |
1899 | default_print_registers_info (struct gdbarch *gdbarch, |
1900 | struct ui_file *file, | |
1901 | struct frame_info *frame, | |
1902 | int regnum, int print_all) | |
c906108c | 1903 | { |
0ab7a791 | 1904 | int i; |
a4bd449d UW |
1905 | const int numregs = gdbarch_num_regs (gdbarch) |
1906 | + gdbarch_num_pseudo_regs (gdbarch); | |
10c42a71 | 1907 | gdb_byte buffer[MAX_REGISTER_SIZE]; |
0ab7a791 | 1908 | |
c906108c SS |
1909 | for (i = 0; i < numregs; i++) |
1910 | { | |
4782dc19 AC |
1911 | /* Decide between printing all regs, non-float / vector regs, or |
1912 | specific reg. */ | |
c5aa993b JM |
1913 | if (regnum == -1) |
1914 | { | |
f9418c0f | 1915 | if (print_all) |
4782dc19 | 1916 | { |
f9418c0f | 1917 | if (!gdbarch_register_reggroup_p (gdbarch, i, all_reggroup)) |
4782dc19 | 1918 | continue; |
f9418c0f AC |
1919 | } |
1920 | else | |
1921 | { | |
1922 | if (!gdbarch_register_reggroup_p (gdbarch, i, general_reggroup)) | |
4782dc19 AC |
1923 | continue; |
1924 | } | |
c5aa993b JM |
1925 | } |
1926 | else | |
1927 | { | |
1928 | if (i != regnum) | |
1929 | continue; | |
1930 | } | |
c906108c SS |
1931 | |
1932 | /* If the register name is empty, it is undefined for this | |
c5aa993b | 1933 | processor, so don't display anything. */ |
a4bd449d UW |
1934 | if (gdbarch_register_name (gdbarch, i) == NULL |
1935 | || *(gdbarch_register_name (gdbarch, i)) == '\0') | |
c906108c SS |
1936 | continue; |
1937 | ||
a4bd449d | 1938 | fputs_filtered (gdbarch_register_name (gdbarch, i), file); |
c9f4d572 | 1939 | print_spaces_filtered (15 - strlen (gdbarch_register_name |
a4bd449d | 1940 | (gdbarch, i)), file); |
c906108c SS |
1941 | |
1942 | /* Get the data in raw format. */ | |
9730f241 | 1943 | if (! frame_register_read (frame, i, buffer)) |
c906108c | 1944 | { |
0ab7a791 | 1945 | fprintf_filtered (file, "*value not available*\n"); |
c906108c SS |
1946 | continue; |
1947 | } | |
1948 | ||
0ab7a791 AC |
1949 | /* If virtual format is floating, print it that way, and in raw |
1950 | hex. */ | |
f949c649 TJB |
1951 | if (TYPE_CODE (register_type (gdbarch, i)) == TYPE_CODE_FLT |
1952 | || TYPE_CODE (register_type (gdbarch, i)) == TYPE_CODE_DECFLOAT) | |
c906108c | 1953 | { |
0ab7a791 | 1954 | int j; |
79a45b7d | 1955 | struct value_print_options opts; |
c906108c | 1956 | |
79a45b7d TT |
1957 | get_user_print_options (&opts); |
1958 | opts.deref_ref = 1; | |
a4bd449d | 1959 | val_print (register_type (gdbarch, i), buffer, 0, 0, |
79a45b7d | 1960 | file, 0, &opts, current_language); |
c906108c | 1961 | |
0ab7a791 | 1962 | fprintf_filtered (file, "\t(raw 0x"); |
a4bd449d | 1963 | for (j = 0; j < register_size (gdbarch, i); j++) |
c906108c | 1964 | { |
0ab7a791 | 1965 | int idx; |
abbb1732 | 1966 | |
a4bd449d | 1967 | if (gdbarch_byte_order (gdbarch) == BFD_ENDIAN_BIG) |
0ab7a791 AC |
1968 | idx = j; |
1969 | else | |
a4bd449d | 1970 | idx = register_size (gdbarch, i) - 1 - j; |
9730f241 | 1971 | fprintf_filtered (file, "%02x", (unsigned char) buffer[idx]); |
c906108c | 1972 | } |
0ab7a791 | 1973 | fprintf_filtered (file, ")"); |
c906108c | 1974 | } |
c906108c SS |
1975 | else |
1976 | { | |
79a45b7d TT |
1977 | struct value_print_options opts; |
1978 | ||
ab4327e0 | 1979 | /* Print the register in hex. */ |
79a45b7d TT |
1980 | get_formatted_print_options (&opts, 'x'); |
1981 | opts.deref_ref = 1; | |
a4bd449d | 1982 | val_print (register_type (gdbarch, i), buffer, 0, 0, |
79a45b7d TT |
1983 | file, 0, &opts, |
1984 | current_language); | |
ab4327e0 EZ |
1985 | /* If not a vector register, print it also according to its |
1986 | natural format. */ | |
a4bd449d | 1987 | if (TYPE_VECTOR (register_type (gdbarch, i)) == 0) |
ab4327e0 | 1988 | { |
79a45b7d TT |
1989 | get_user_print_options (&opts); |
1990 | opts.deref_ref = 1; | |
9d84ac84 | 1991 | fprintf_filtered (file, "\t"); |
a4bd449d | 1992 | val_print (register_type (gdbarch, i), buffer, 0, 0, |
79a45b7d | 1993 | file, 0, &opts, current_language); |
ab4327e0 | 1994 | } |
c906108c SS |
1995 | } |
1996 | ||
0ab7a791 | 1997 | fprintf_filtered (file, "\n"); |
c906108c SS |
1998 | } |
1999 | } | |
c906108c | 2000 | |
c906108c | 2001 | void |
fba45db2 | 2002 | registers_info (char *addr_exp, int fpregs) |
c906108c | 2003 | { |
206415a3 | 2004 | struct frame_info *frame; |
a4bd449d | 2005 | struct gdbarch *gdbarch; |
c906108c SS |
2006 | |
2007 | if (!target_has_registers) | |
8a3fe4f8 | 2008 | error (_("The program has no registers now.")); |
206415a3 | 2009 | frame = get_selected_frame (NULL); |
a4bd449d | 2010 | gdbarch = get_frame_arch (frame); |
c906108c SS |
2011 | |
2012 | if (!addr_exp) | |
2013 | { | |
a4bd449d | 2014 | gdbarch_print_registers_info (gdbarch, gdb_stdout, |
206415a3 | 2015 | frame, -1, fpregs); |
c906108c SS |
2016 | return; |
2017 | } | |
2018 | ||
f9418c0f | 2019 | while (*addr_exp != '\0') |
c5aa993b | 2020 | { |
f9418c0f AC |
2021 | char *start; |
2022 | const char *end; | |
c906108c | 2023 | |
f9418c0f AC |
2024 | /* Keep skipping leading white space. */ |
2025 | if (isspace ((*addr_exp))) | |
2026 | { | |
2027 | addr_exp++; | |
2028 | continue; | |
2029 | } | |
c906108c | 2030 | |
f9418c0f AC |
2031 | /* Discard any leading ``$''. Check that there is something |
2032 | resembling a register following it. */ | |
2033 | if (addr_exp[0] == '$') | |
2034 | addr_exp++; | |
2035 | if (isspace ((*addr_exp)) || (*addr_exp) == '\0') | |
8a3fe4f8 | 2036 | error (_("Missing register name")); |
c906108c | 2037 | |
f9418c0f AC |
2038 | /* Find the start/end of this register name/num/group. */ |
2039 | start = addr_exp; | |
2040 | while ((*addr_exp) != '\0' && !isspace ((*addr_exp))) | |
2041 | addr_exp++; | |
2042 | end = addr_exp; | |
ad842144 | 2043 | |
f9418c0f AC |
2044 | /* Figure out what we've found and display it. */ |
2045 | ||
2046 | /* A register name? */ | |
2047 | { | |
029a67e4 | 2048 | int regnum = user_reg_map_name_to_regnum (gdbarch, start, end - start); |
abbb1732 | 2049 | |
f9418c0f AC |
2050 | if (regnum >= 0) |
2051 | { | |
ad842144 MR |
2052 | /* User registers lie completely outside of the range of |
2053 | normal registers. Catch them early so that the target | |
2054 | never sees them. */ | |
2055 | if (regnum >= gdbarch_num_regs (gdbarch) | |
2056 | + gdbarch_num_pseudo_regs (gdbarch)) | |
2057 | { | |
79a45b7d | 2058 | struct value_print_options opts; |
ad842144 MR |
2059 | struct value *val = value_of_user_reg (regnum, frame); |
2060 | ||
2061 | printf_filtered ("%s: ", start); | |
79a45b7d | 2062 | get_formatted_print_options (&opts, 'x'); |
ad842144 MR |
2063 | print_scalar_formatted (value_contents (val), |
2064 | check_typedef (value_type (val)), | |
79a45b7d | 2065 | &opts, 0, gdb_stdout); |
ad842144 MR |
2066 | printf_filtered ("\n"); |
2067 | } | |
2068 | else | |
2069 | gdbarch_print_registers_info (gdbarch, gdb_stdout, | |
2070 | frame, regnum, fpregs); | |
f9418c0f AC |
2071 | continue; |
2072 | } | |
2073 | } | |
ad842144 | 2074 | |
f9418c0f AC |
2075 | /* A register group? */ |
2076 | { | |
6c7d17ba | 2077 | struct reggroup *group; |
abbb1732 | 2078 | |
a4bd449d | 2079 | for (group = reggroup_next (gdbarch, NULL); |
6c7d17ba | 2080 | group != NULL; |
a4bd449d | 2081 | group = reggroup_next (gdbarch, group)) |
f9418c0f AC |
2082 | { |
2083 | /* Don't bother with a length check. Should the user | |
2084 | enter a short register group name, go with the first | |
2085 | group that matches. */ | |
6c7d17ba | 2086 | if (strncmp (start, reggroup_name (group), end - start) == 0) |
f9418c0f AC |
2087 | break; |
2088 | } | |
6c7d17ba | 2089 | if (group != NULL) |
f9418c0f AC |
2090 | { |
2091 | int regnum; | |
abbb1732 | 2092 | |
f57d151a | 2093 | for (regnum = 0; |
a4bd449d UW |
2094 | regnum < gdbarch_num_regs (gdbarch) |
2095 | + gdbarch_num_pseudo_regs (gdbarch); | |
f57d151a | 2096 | regnum++) |
f9418c0f | 2097 | { |
a4bd449d UW |
2098 | if (gdbarch_register_reggroup_p (gdbarch, regnum, group)) |
2099 | gdbarch_print_registers_info (gdbarch, | |
206415a3 | 2100 | gdb_stdout, frame, |
f9418c0f AC |
2101 | regnum, fpregs); |
2102 | } | |
2103 | continue; | |
2104 | } | |
2105 | } | |
c906108c | 2106 | |
f9418c0f | 2107 | /* Nothing matched. */ |
8a3fe4f8 | 2108 | error (_("Invalid register `%.*s'"), (int) (end - start), start); |
c5aa993b | 2109 | } |
c906108c SS |
2110 | } |
2111 | ||
2112 | void | |
fba45db2 | 2113 | all_registers_info (char *addr_exp, int from_tty) |
c906108c SS |
2114 | { |
2115 | registers_info (addr_exp, 1); | |
2116 | } | |
2117 | ||
a58dd373 | 2118 | static void |
fba45db2 | 2119 | nofp_registers_info (char *addr_exp, int from_tty) |
c906108c SS |
2120 | { |
2121 | registers_info (addr_exp, 0); | |
2122 | } | |
e76f1f2e AC |
2123 | |
2124 | static void | |
d80b854b | 2125 | print_vector_info (struct ui_file *file, |
e76f1f2e AC |
2126 | struct frame_info *frame, const char *args) |
2127 | { | |
d80b854b UW |
2128 | struct gdbarch *gdbarch = get_frame_arch (frame); |
2129 | ||
e76f1f2e AC |
2130 | if (gdbarch_print_vector_info_p (gdbarch)) |
2131 | gdbarch_print_vector_info (gdbarch, file, frame, args); | |
2132 | else | |
2133 | { | |
2134 | int regnum; | |
2135 | int printed_something = 0; | |
ab4327e0 | 2136 | |
f57d151a | 2137 | for (regnum = 0; |
a4bd449d UW |
2138 | regnum < gdbarch_num_regs (gdbarch) |
2139 | + gdbarch_num_pseudo_regs (gdbarch); | |
f57d151a | 2140 | regnum++) |
e76f1f2e | 2141 | { |
f9418c0f | 2142 | if (gdbarch_register_reggroup_p (gdbarch, regnum, vector_reggroup)) |
e76f1f2e AC |
2143 | { |
2144 | printed_something = 1; | |
e76f1f2e | 2145 | gdbarch_print_registers_info (gdbarch, file, frame, regnum, 1); |
e76f1f2e AC |
2146 | } |
2147 | } | |
2148 | if (!printed_something) | |
2149 | fprintf_filtered (file, "No vector information\n"); | |
2150 | } | |
2151 | } | |
2152 | ||
2153 | static void | |
2154 | vector_info (char *args, int from_tty) | |
2155 | { | |
206415a3 DJ |
2156 | if (!target_has_registers) |
2157 | error (_("The program has no registers now.")); | |
2158 | ||
d80b854b | 2159 | print_vector_info (gdb_stdout, get_selected_frame (NULL), args); |
e76f1f2e | 2160 | } |
c906108c | 2161 | \f |
5fd62852 PA |
2162 | /* Kill the inferior process. Make us have no inferior. */ |
2163 | ||
2164 | static void | |
2165 | kill_command (char *arg, int from_tty) | |
2166 | { | |
2167 | /* FIXME: This should not really be inferior_ptid (or target_has_execution). | |
2168 | It should be a distinct flag that indicates that a target is active, cuz | |
2169 | some targets don't have processes! */ | |
2170 | ||
2171 | if (ptid_equal (inferior_ptid, null_ptid)) | |
2172 | error (_("The program is not being run.")); | |
2173 | if (!query (_("Kill the program being debugged? "))) | |
2174 | error (_("Not confirmed.")); | |
2175 | target_kill (); | |
2176 | ||
c35b1492 PA |
2177 | /* If we still have other inferiors to debug, then don't mess with |
2178 | with their threads. */ | |
2179 | if (!have_inferiors ()) | |
5fd62852 PA |
2180 | { |
2181 | init_thread_list (); /* Destroy thread info */ | |
2182 | ||
2183 | /* Killing off the inferior can leave us with a core file. If | |
2184 | so, print the state we are left in. */ | |
2185 | if (target_has_stack) | |
2186 | { | |
2187 | printf_filtered (_("In %s,\n"), target_longname); | |
2188 | print_stack_frame (get_selected_frame (NULL), 1, SRC_AND_LOC); | |
2189 | } | |
2190 | } | |
2191 | bfd_cache_close_all (); | |
2192 | } | |
c5aa993b | 2193 | |
74531fed PA |
2194 | /* Used in `attach&' command. ARG is a point to an integer |
2195 | representing a process id. Proceed threads of this process iff | |
2196 | they stopped due to debugger request, and when they did, they | |
2197 | reported a clean stop (TARGET_SIGNAL_0). Do not proceed threads | |
2198 | that have been explicitly been told to stop. */ | |
2199 | ||
2200 | static int | |
2201 | proceed_after_attach_callback (struct thread_info *thread, | |
2202 | void *arg) | |
2203 | { | |
2204 | int pid = * (int *) arg; | |
2205 | ||
2206 | if (ptid_get_pid (thread->ptid) == pid | |
2207 | && !is_exited (thread->ptid) | |
2208 | && !is_executing (thread->ptid) | |
2209 | && !thread->stop_requested | |
2210 | && thread->stop_signal == TARGET_SIGNAL_0) | |
2211 | { | |
2212 | switch_to_thread (thread->ptid); | |
2213 | clear_proceed_status (); | |
2214 | proceed ((CORE_ADDR) -1, TARGET_SIGNAL_DEFAULT, 0); | |
2215 | } | |
2216 | ||
2217 | return 0; | |
2218 | } | |
2219 | ||
2220 | static void | |
2221 | proceed_after_attach (int pid) | |
2222 | { | |
2223 | /* Don't error out if the current thread is running, because | |
2224 | there may be other stopped threads. */ | |
2225 | struct cleanup *old_chain; | |
2226 | ||
2227 | /* Backup current thread and selected frame. */ | |
2228 | old_chain = make_cleanup_restore_current_thread (); | |
2229 | ||
2230 | iterate_over_threads (proceed_after_attach_callback, &pid); | |
2231 | ||
2232 | /* Restore selected ptid. */ | |
2233 | do_cleanups (old_chain); | |
2234 | } | |
2235 | ||
c906108c SS |
2236 | /* |
2237 | * TODO: | |
2238 | * Should save/restore the tty state since it might be that the | |
2239 | * program to be debugged was started on this tty and it wants | |
2240 | * the tty in some state other than what we want. If it's running | |
2241 | * on another terminal or without a terminal, then saving and | |
2242 | * restoring the tty state is a harmless no-op. | |
2243 | * This only needs to be done if we are attaching to a process. | |
2244 | */ | |
2245 | ||
2246 | /* | |
2247 | attach_command -- | |
2248 | takes a program started up outside of gdb and ``attaches'' to it. | |
2249 | This stops it cold in its tracks and allows us to start debugging it. | |
2250 | and wait for the trace-trap that results from attaching. */ | |
2251 | ||
9356cf8d PA |
2252 | static void |
2253 | attach_command_post_wait (char *args, int from_tty, int async_exec) | |
2254 | { | |
2255 | char *exec_file; | |
2256 | char *full_exec_path = NULL; | |
d6b48e9c | 2257 | struct inferior *inferior; |
9356cf8d | 2258 | |
d6b48e9c PA |
2259 | inferior = current_inferior (); |
2260 | inferior->stop_soon = NO_STOP_QUIETLY; | |
9356cf8d PA |
2261 | |
2262 | /* If no exec file is yet known, try to determine it from the | |
2263 | process itself. */ | |
2264 | exec_file = (char *) get_exec_file (0); | |
2265 | if (!exec_file) | |
2266 | { | |
2267 | exec_file = target_pid_to_exec_file (PIDGET (inferior_ptid)); | |
2268 | if (exec_file) | |
2269 | { | |
2270 | /* It's possible we don't have a full path, but rather just a | |
2271 | filename. Some targets, such as HP-UX, don't provide the | |
2272 | full path, sigh. | |
2273 | ||
2274 | Attempt to qualify the filename against the source path. | |
2275 | (If that fails, we'll just fall back on the original | |
2276 | filename. Not much more we can do...) | |
2277 | */ | |
2278 | if (!source_full_path_of (exec_file, &full_exec_path)) | |
1b36a34b | 2279 | full_exec_path = xstrdup (exec_file); |
9356cf8d PA |
2280 | |
2281 | exec_file_attach (full_exec_path, from_tty); | |
2282 | symbol_file_add_main (full_exec_path, from_tty); | |
2283 | } | |
2284 | } | |
2285 | else | |
2286 | { | |
2287 | reopen_exec_file (); | |
2288 | reread_symbols (); | |
2289 | } | |
2290 | ||
2291 | /* Take any necessary post-attaching actions for this platform. */ | |
2292 | target_post_attach (PIDGET (inferior_ptid)); | |
2293 | ||
2294 | post_create_inferior (¤t_target, from_tty); | |
2295 | ||
2296 | /* Install inferior's terminal modes. */ | |
2297 | target_terminal_inferior (); | |
2298 | ||
2299 | if (async_exec) | |
74531fed PA |
2300 | { |
2301 | /* The user requested an `attach&', so be sure to leave threads | |
2302 | that didn't get a signal running. */ | |
2303 | ||
2304 | /* Immediatelly resume all suspended threads of this inferior, | |
2305 | and this inferior only. This should have no effect on | |
2306 | already running threads. If a thread has been stopped with a | |
2307 | signal, leave it be. */ | |
2308 | if (non_stop) | |
2309 | proceed_after_attach (inferior->pid); | |
2310 | else | |
2311 | { | |
2312 | if (inferior_thread ()->stop_signal == TARGET_SIGNAL_0) | |
2313 | { | |
2314 | clear_proceed_status (); | |
2315 | proceed ((CORE_ADDR) -1, TARGET_SIGNAL_DEFAULT, 0); | |
2316 | } | |
2317 | } | |
2318 | } | |
9356cf8d PA |
2319 | else |
2320 | { | |
74531fed PA |
2321 | /* The user requested a plain `attach', so be sure to leave |
2322 | the inferior stopped. */ | |
2323 | ||
9356cf8d PA |
2324 | if (target_can_async_p ()) |
2325 | async_enable_stdin (); | |
74531fed PA |
2326 | |
2327 | /* At least the current thread is already stopped. */ | |
2328 | ||
2329 | /* In all-stop, by definition, all threads have to be already | |
2330 | stopped at this point. In non-stop, however, although the | |
2331 | selected thread is stopped, others may still be executing. | |
2332 | Be sure to explicitly stop all threads of the process. This | |
2333 | should have no effect on already stopped threads. */ | |
2334 | if (non_stop) | |
2335 | target_stop (pid_to_ptid (inferior->pid)); | |
2336 | ||
2337 | /* Tell the user/frontend where we're stopped. */ | |
9356cf8d PA |
2338 | normal_stop (); |
2339 | if (deprecated_attach_hook) | |
2340 | deprecated_attach_hook (); | |
2341 | } | |
2342 | } | |
2343 | ||
bfec99b2 | 2344 | struct attach_command_continuation_args |
9356cf8d PA |
2345 | { |
2346 | char *args; | |
2347 | int from_tty; | |
2348 | int async_exec; | |
bfec99b2 | 2349 | }; |
9356cf8d | 2350 | |
bfec99b2 | 2351 | static void |
604ead4a | 2352 | attach_command_continuation (void *args) |
bfec99b2 PA |
2353 | { |
2354 | struct attach_command_continuation_args *a = args; | |
abbb1732 | 2355 | |
bfec99b2 | 2356 | attach_command_post_wait (a->args, a->from_tty, a->async_exec); |
9356cf8d PA |
2357 | } |
2358 | ||
604ead4a PA |
2359 | static void |
2360 | attach_command_continuation_free_args (void *args) | |
2361 | { | |
2362 | struct attach_command_continuation_args *a = args; | |
abbb1732 | 2363 | |
604ead4a PA |
2364 | xfree (a->args); |
2365 | xfree (a); | |
2366 | } | |
2367 | ||
c906108c | 2368 | void |
fba45db2 | 2369 | attach_command (char *args, int from_tty) |
c906108c | 2370 | { |
9356cf8d | 2371 | int async_exec = 0; |
cb0362bb | 2372 | struct cleanup *back_to = make_cleanup (null_cleanup, NULL); |
c906108c | 2373 | |
c5aa993b | 2374 | dont_repeat (); /* Not for the faint of heart */ |
c906108c | 2375 | |
2567c7d9 PA |
2376 | if (gdbarch_has_global_solist (target_gdbarch)) |
2377 | /* Don't complain if all processes share the same symbol | |
2378 | space. */ | |
8a305172 PA |
2379 | ; |
2380 | else if (target_has_execution) | |
c906108c | 2381 | { |
9e2f0ad4 | 2382 | if (query (_("A program is being debugged already. Kill it? "))) |
c906108c SS |
2383 | target_kill (); |
2384 | else | |
8a3fe4f8 | 2385 | error (_("Not killed.")); |
c906108c SS |
2386 | } |
2387 | ||
fd79ecee DJ |
2388 | /* Clean up any leftovers from other runs. Some other things from |
2389 | this function should probably be moved into target_pre_inferior. */ | |
2390 | target_pre_inferior (from_tty); | |
2391 | ||
9908b566 VP |
2392 | if (non_stop && !target_supports_non_stop ()) |
2393 | error (_("Cannot attach to this target in non-stop mode")); | |
2394 | ||
9356cf8d PA |
2395 | if (args) |
2396 | { | |
2397 | async_exec = strip_bg_char (&args); | |
2398 | ||
2399 | /* If we get a request for running in the bg but the target | |
2400 | doesn't support it, error out. */ | |
2401 | if (async_exec && !target_can_async_p ()) | |
2402 | error (_("Asynchronous execution not supported on this target.")); | |
2403 | } | |
2404 | ||
2405 | /* If we don't get a request of running in the bg, then we need | |
2406 | to simulate synchronous (fg) execution. */ | |
2407 | if (!async_exec && target_can_async_p ()) | |
2408 | { | |
2409 | /* Simulate synchronous execution */ | |
2410 | async_disable_stdin (); | |
cb0362bb | 2411 | make_cleanup ((make_cleanup_ftype *)async_enable_stdin, NULL); |
9356cf8d PA |
2412 | } |
2413 | ||
c906108c SS |
2414 | target_attach (args, from_tty); |
2415 | ||
2416 | /* Set up the "saved terminal modes" of the inferior | |
2417 | based on what modes we are starting it with. */ | |
2418 | target_terminal_init (); | |
2419 | ||
c906108c SS |
2420 | /* Set up execution context to know that we should return from |
2421 | wait_for_inferior as soon as the target reports a stop. */ | |
2422 | init_wait_for_inferior (); | |
2423 | clear_proceed_status (); | |
c906108c | 2424 | |
74531fed PA |
2425 | if (non_stop) |
2426 | { | |
2427 | /* If we find that the current thread isn't stopped, explicitly | |
2428 | do so now, because we're going to install breakpoints and | |
2429 | poke at memory. */ | |
2430 | ||
2431 | if (async_exec) | |
2432 | /* The user requested an `attach&'; stop just one thread. */ | |
2433 | target_stop (inferior_ptid); | |
2434 | else | |
2435 | /* The user requested an `attach', so stop all threads of this | |
2436 | inferior. */ | |
2437 | target_stop (pid_to_ptid (ptid_get_pid (inferior_ptid))); | |
2438 | } | |
2439 | ||
dc177b7a PA |
2440 | /* Some system don't generate traps when attaching to inferior. |
2441 | E.g. Mach 3 or GNU hurd. */ | |
2442 | if (!target_attach_no_wait) | |
c5aa993b | 2443 | { |
d6b48e9c PA |
2444 | struct inferior *inferior = current_inferior (); |
2445 | ||
dc177b7a PA |
2446 | /* Careful here. See comments in inferior.h. Basically some |
2447 | OSes don't ignore SIGSTOPs on continue requests anymore. We | |
2448 | need a way for handle_inferior_event to reset the stop_signal | |
2449 | variable after an attach, and this is what | |
2450 | STOP_QUIETLY_NO_SIGSTOP is for. */ | |
d6b48e9c | 2451 | inferior->stop_soon = STOP_QUIETLY_NO_SIGSTOP; |
c5aa993b | 2452 | |
dc177b7a PA |
2453 | if (target_can_async_p ()) |
2454 | { | |
2455 | /* sync_execution mode. Wait for stop. */ | |
bfec99b2 PA |
2456 | struct attach_command_continuation_args *a; |
2457 | ||
2458 | a = xmalloc (sizeof (*a)); | |
2459 | a->args = xstrdup (args); | |
2460 | a->from_tty = from_tty; | |
2461 | a->async_exec = async_exec; | |
e0ba6746 PA |
2462 | add_inferior_continuation (attach_command_continuation, a, |
2463 | attach_command_continuation_free_args); | |
cb0362bb | 2464 | discard_cleanups (back_to); |
dc177b7a PA |
2465 | return; |
2466 | } | |
c906108c | 2467 | |
dc177b7a PA |
2468 | wait_for_inferior (0); |
2469 | } | |
6426a772 | 2470 | |
9356cf8d | 2471 | attach_command_post_wait (args, from_tty, async_exec); |
cb0362bb | 2472 | discard_cleanups (back_to); |
c906108c SS |
2473 | } |
2474 | ||
1941c569 PA |
2475 | /* We had just found out that the target was already attached to an |
2476 | inferior. PTID points at a thread of this new inferior, that is | |
2477 | the most likely to be stopped right now, but not necessarily so. | |
2478 | The new inferior is assumed to be already added to the inferior | |
2479 | list at this point. If LEAVE_RUNNING, then leave the threads of | |
2480 | this inferior running, except those we've explicitly seen reported | |
2481 | as stopped. */ | |
2482 | ||
2483 | void | |
2484 | notice_new_inferior (ptid_t ptid, int leave_running, int from_tty) | |
2485 | { | |
2486 | struct cleanup* old_chain; | |
2487 | int async_exec; | |
2488 | ||
2489 | old_chain = make_cleanup (null_cleanup, NULL); | |
2490 | ||
2491 | /* If in non-stop, leave threads as running as they were. If | |
2492 | they're stopped for some reason other than us telling it to, the | |
2493 | target reports a signal != TARGET_SIGNAL_0. We don't try to | |
2494 | resume threads with such a stop signal. */ | |
2495 | async_exec = non_stop; | |
2496 | ||
2497 | if (!ptid_equal (inferior_ptid, null_ptid)) | |
2498 | make_cleanup_restore_current_thread (); | |
2499 | ||
2500 | switch_to_thread (ptid); | |
2501 | ||
2502 | /* When we "notice" a new inferior we need to do all the things we | |
2503 | would normally do if we had just attached to it. */ | |
2504 | ||
2505 | if (is_executing (inferior_ptid)) | |
2506 | { | |
2507 | struct inferior *inferior = current_inferior (); | |
2508 | ||
2509 | /* We're going to install breakpoints, and poke at memory, | |
2510 | ensure that the inferior is stopped for a moment while we do | |
2511 | that. */ | |
2512 | target_stop (inferior_ptid); | |
2513 | ||
2514 | inferior->stop_soon = STOP_QUIETLY_REMOTE; | |
2515 | ||
2516 | /* Wait for stop before proceeding. */ | |
2517 | if (target_can_async_p ()) | |
2518 | { | |
2519 | struct attach_command_continuation_args *a; | |
2520 | ||
2521 | a = xmalloc (sizeof (*a)); | |
2522 | a->args = xstrdup (""); | |
2523 | a->from_tty = from_tty; | |
2524 | a->async_exec = async_exec; | |
2525 | add_inferior_continuation (attach_command_continuation, a, | |
2526 | attach_command_continuation_free_args); | |
2527 | ||
2528 | do_cleanups (old_chain); | |
2529 | return; | |
2530 | } | |
2531 | else | |
2532 | wait_for_inferior (0); | |
2533 | } | |
2534 | ||
2535 | async_exec = leave_running; | |
2536 | attach_command_post_wait ("" /* args */, from_tty, async_exec); | |
2537 | ||
2538 | do_cleanups (old_chain); | |
2539 | } | |
2540 | ||
c906108c SS |
2541 | /* |
2542 | * detach_command -- | |
2543 | * takes a program previously attached to and detaches it. | |
2544 | * The program resumes execution and will no longer stop | |
2545 | * on signals, etc. We better not have left any breakpoints | |
2546 | * in the program or it'll die when it hits one. For this | |
2547 | * to work, it may be necessary for the process to have been | |
2548 | * previously attached. It *might* work if the program was | |
2549 | * started via the normal ptrace (PTRACE_TRACEME). | |
2550 | */ | |
2551 | ||
6418d433 | 2552 | void |
fba45db2 | 2553 | detach_command (char *args, int from_tty) |
c906108c | 2554 | { |
1f5d0fc9 | 2555 | dont_repeat (); /* Not for the faint of heart. */ |
d729566a PA |
2556 | |
2557 | if (ptid_equal (inferior_ptid, null_ptid)) | |
2558 | error (_("The program is not being run.")); | |
2559 | ||
33da3f1c | 2560 | disconnect_tracing (from_tty); |
d5551862 | 2561 | |
c906108c | 2562 | target_detach (args, from_tty); |
50c71eaf PA |
2563 | |
2564 | /* If the solist is global across inferiors, don't clear it when we | |
2565 | detach from a single inferior. */ | |
2566 | if (!gdbarch_has_global_solist (target_gdbarch)) | |
2567 | no_shared_libraries (NULL, from_tty); | |
8a305172 | 2568 | |
c35b1492 PA |
2569 | /* If we still have inferiors to debug, then don't mess with their |
2570 | threads. */ | |
2571 | if (!have_inferiors ()) | |
8a305172 PA |
2572 | init_thread_list (); |
2573 | ||
9a4105ab AC |
2574 | if (deprecated_detach_hook) |
2575 | deprecated_detach_hook (); | |
c906108c SS |
2576 | } |
2577 | ||
6ad8ae5c DJ |
2578 | /* Disconnect from the current target without resuming it (leaving it |
2579 | waiting for a debugger). | |
2580 | ||
2581 | We'd better not have left any breakpoints in the program or the | |
2582 | next debugger will get confused. Currently only supported for some | |
2583 | remote targets, since the normal attach mechanisms don't work on | |
2584 | stopped processes on some native platforms (e.g. GNU/Linux). */ | |
2585 | ||
2586 | static void | |
2587 | disconnect_command (char *args, int from_tty) | |
2588 | { | |
2589 | dont_repeat (); /* Not for the faint of heart */ | |
2590 | target_disconnect (args, from_tty); | |
e85a822c | 2591 | no_shared_libraries (NULL, from_tty); |
a0ef4274 | 2592 | init_thread_list (); |
9a4105ab AC |
2593 | if (deprecated_detach_hook) |
2594 | deprecated_detach_hook (); | |
6ad8ae5c DJ |
2595 | } |
2596 | ||
77ebaa5a VP |
2597 | void |
2598 | interrupt_target_1 (int all_threads) | |
2599 | { | |
2600 | ptid_t ptid; | |
abbb1732 | 2601 | |
77ebaa5a VP |
2602 | if (all_threads) |
2603 | ptid = minus_one_ptid; | |
2604 | else | |
2605 | ptid = inferior_ptid; | |
2606 | target_stop (ptid); | |
252fbfc8 PA |
2607 | |
2608 | /* Tag the thread as having been explicitly requested to stop, so | |
2609 | other parts of gdb know not to resume this thread automatically, | |
2610 | if it was stopped due to an internal event. Limit this to | |
2611 | non-stop mode, as when debugging a multi-threaded application in | |
2612 | all-stop mode, we will only get one stop event --- it's undefined | |
2613 | which thread will report the event. */ | |
2614 | if (non_stop) | |
2615 | set_stop_requested (ptid, 1); | |
77ebaa5a VP |
2616 | } |
2617 | ||
43ff13b4 | 2618 | /* Stop the execution of the target while running in async mode, in |
8cae4b3f PA |
2619 | the backgound. In all-stop, stop the whole process. In non-stop |
2620 | mode, stop the current thread only by default, or stop all threads | |
2621 | if the `-a' switch is used. */ | |
2622 | ||
2623 | /* interrupt [-a] */ | |
8b93c638 | 2624 | void |
fba45db2 | 2625 | interrupt_target_command (char *args, int from_tty) |
43ff13b4 | 2626 | { |
362646f5 | 2627 | if (target_can_async_p ()) |
43ff13b4 | 2628 | { |
8cae4b3f PA |
2629 | int all_threads = 0; |
2630 | ||
c5aa993b | 2631 | dont_repeat (); /* Not for the faint of heart */ |
94cc34af | 2632 | |
8cae4b3f PA |
2633 | if (args != NULL |
2634 | && strncmp (args, "-a", sizeof ("-a") - 1) == 0) | |
2635 | all_threads = 1; | |
2636 | ||
2637 | if (!non_stop && all_threads) | |
2638 | error (_("-a is meaningless in all-stop mode.")); | |
2639 | ||
77ebaa5a | 2640 | interrupt_target_1 (all_threads); |
43ff13b4 JM |
2641 | } |
2642 | } | |
2643 | ||
c906108c | 2644 | static void |
d80b854b | 2645 | print_float_info (struct ui_file *file, |
23e3a7ac | 2646 | struct frame_info *frame, const char *args) |
c906108c | 2647 | { |
d80b854b UW |
2648 | struct gdbarch *gdbarch = get_frame_arch (frame); |
2649 | ||
23e3a7ac AC |
2650 | if (gdbarch_print_float_info_p (gdbarch)) |
2651 | gdbarch_print_float_info (gdbarch, file, frame, args); | |
2652 | else | |
2653 | { | |
23e3a7ac AC |
2654 | int regnum; |
2655 | int printed_something = 0; | |
ab4327e0 | 2656 | |
f57d151a | 2657 | for (regnum = 0; |
a4bd449d UW |
2658 | regnum < gdbarch_num_regs (gdbarch) |
2659 | + gdbarch_num_pseudo_regs (gdbarch); | |
f57d151a | 2660 | regnum++) |
23e3a7ac | 2661 | { |
f9418c0f | 2662 | if (gdbarch_register_reggroup_p (gdbarch, regnum, float_reggroup)) |
23e3a7ac AC |
2663 | { |
2664 | printed_something = 1; | |
23e3a7ac | 2665 | gdbarch_print_registers_info (gdbarch, file, frame, regnum, 1); |
23e3a7ac AC |
2666 | } |
2667 | } | |
2668 | if (!printed_something) | |
2669 | fprintf_filtered (file, "\ | |
2670 | No floating-point info available for this processor.\n"); | |
23e3a7ac AC |
2671 | } |
2672 | } | |
2673 | ||
2674 | static void | |
2675 | float_info (char *args, int from_tty) | |
2676 | { | |
206415a3 DJ |
2677 | if (!target_has_registers) |
2678 | error (_("The program has no registers now.")); | |
2679 | ||
d80b854b | 2680 | print_float_info (gdb_stdout, get_selected_frame (NULL), args); |
c906108c SS |
2681 | } |
2682 | \f | |
c906108c | 2683 | static void |
fba45db2 | 2684 | unset_command (char *args, int from_tty) |
c906108c | 2685 | { |
a3f17187 AC |
2686 | printf_filtered (_("\ |
2687 | \"unset\" must be followed by the name of an unset subcommand.\n")); | |
c906108c SS |
2688 | help_list (unsetlist, "unset ", -1, gdb_stdout); |
2689 | } | |
2690 | ||
2691 | void | |
fba45db2 | 2692 | _initialize_infcmd (void) |
c906108c | 2693 | { |
3cb3b8df BR |
2694 | struct cmd_list_element *c = NULL; |
2695 | ||
2696 | /* add the filename of the terminal connected to inferior I/O */ | |
2697 | add_setshow_filename_cmd ("inferior-tty", class_run, | |
3f81c18a | 2698 | &inferior_io_terminal_scratch, _("\ |
3cb3b8df BR |
2699 | Set terminal for future runs of program being debugged."), _("\ |
2700 | Show terminal for future runs of program being debugged."), _("\ | |
3f81c18a VP |
2701 | Usage: set inferior-tty /dev/pts/1"), |
2702 | set_inferior_tty_command, | |
2703 | show_inferior_tty_command, | |
2704 | &setlist, &showlist); | |
3cb3b8df | 2705 | add_com_alias ("tty", "set inferior-tty", class_alias, 0); |
c906108c | 2706 | |
b4b4ac0b | 2707 | add_setshow_optional_filename_cmd ("args", class_run, |
3f81c18a | 2708 | &inferior_args_scratch, _("\ |
b4b4ac0b AC |
2709 | Set argument list to give program being debugged when it is started."), _("\ |
2710 | Show argument list to give program being debugged when it is started."), _("\ | |
2711 | Follow this command with any number of args, to be passed to the program."), | |
3f81c18a VP |
2712 | set_args_command, |
2713 | show_args_command, | |
b4b4ac0b | 2714 | &setlist, &showlist); |
c906108c | 2715 | |
1a966eab AC |
2716 | c = add_cmd ("environment", no_class, environment_info, _("\ |
2717 | The environment to give the program, or one variable's value.\n\ | |
c906108c SS |
2718 | With an argument VAR, prints the value of environment variable VAR to\n\ |
2719 | give the program being debugged. With no arguments, prints the entire\n\ | |
1a966eab | 2720 | environment to be given to the program."), &showlist); |
5ba2abeb | 2721 | set_cmd_completer (c, noop_completer); |
c906108c SS |
2722 | |
2723 | add_prefix_cmd ("unset", no_class, unset_command, | |
1bedd215 | 2724 | _("Complement to certain \"set\" commands."), |
c906108c | 2725 | &unsetlist, "unset ", 0, &cmdlist); |
c5aa993b | 2726 | |
1a966eab AC |
2727 | c = add_cmd ("environment", class_run, unset_environment_command, _("\ |
2728 | Cancel environment variable VAR for the program.\n\ | |
2729 | This does not affect the program until the next \"run\" command."), | |
c5aa993b | 2730 | &unsetlist); |
5ba2abeb | 2731 | set_cmd_completer (c, noop_completer); |
c906108c | 2732 | |
1a966eab AC |
2733 | c = add_cmd ("environment", class_run, set_environment_command, _("\ |
2734 | Set environment variable value to give the program.\n\ | |
c906108c SS |
2735 | Arguments are VAR VALUE where VAR is variable name and VALUE is value.\n\ |
2736 | VALUES of environment variables are uninterpreted strings.\n\ | |
1a966eab | 2737 | This does not affect the program until the next \"run\" command."), |
c5aa993b | 2738 | &setlist); |
5ba2abeb | 2739 | set_cmd_completer (c, noop_completer); |
c5aa993b | 2740 | |
1bedd215 AC |
2741 | c = add_com ("path", class_files, path_command, _("\ |
2742 | Add directory DIR(s) to beginning of search path for object files.\n\ | |
c906108c SS |
2743 | $cwd in the path means the current working directory.\n\ |
2744 | This path is equivalent to the $PATH shell variable. It is a list of\n\ | |
2745 | directories, separated by colons. These directories are searched to find\n\ | |
1bedd215 | 2746 | fully linked executable files and separately compiled object files as needed.")); |
5ba2abeb | 2747 | set_cmd_completer (c, filename_completer); |
c906108c | 2748 | |
1a966eab AC |
2749 | c = add_cmd ("paths", no_class, path_info, _("\ |
2750 | Current search path for finding object files.\n\ | |
c906108c SS |
2751 | $cwd in the path means the current working directory.\n\ |
2752 | This path is equivalent to the $PATH shell variable. It is a list of\n\ | |
2753 | directories, separated by colons. These directories are searched to find\n\ | |
1a966eab | 2754 | fully linked executable files and separately compiled object files as needed."), |
c906108c | 2755 | &showlist); |
5ba2abeb | 2756 | set_cmd_completer (c, noop_completer); |
c906108c | 2757 | |
2277426b PA |
2758 | add_prefix_cmd ("kill", class_run, kill_command, |
2759 | _("Kill execution of program being debugged."), | |
2760 | &killlist, "kill ", 0, &cmdlist); | |
5fd62852 | 2761 | |
1bedd215 AC |
2762 | add_com ("attach", class_run, attach_command, _("\ |
2763 | Attach to a process or file outside of GDB.\n\ | |
c906108c SS |
2764 | This command attaches to another target, of the same type as your last\n\ |
2765 | \"target\" command (\"info files\" will show your target stack).\n\ | |
2766 | The command may take as argument a process id or a device file.\n\ | |
2767 | For a process id, you must have permission to send the process a signal,\n\ | |
2768 | and it must have the same effective uid as the debugger.\n\ | |
2769 | When using \"attach\" with a process id, the debugger finds the\n\ | |
2770 | program running in the process, looking first in the current working\n\ | |
2771 | directory, or (if not found there) using the source file search path\n\ | |
2772 | (see the \"directory\" command). You can also use the \"file\" command\n\ | |
1bedd215 | 2773 | to specify the program, and to load its symbol table.")); |
c906108c | 2774 | |
f73adfeb | 2775 | add_prefix_cmd ("detach", class_run, detach_command, _("\ |
1bedd215 | 2776 | Detach a process or file previously attached.\n\ |
c906108c | 2777 | If a process, it is no longer traced, and it continues its execution. If\n\ |
f73adfeb AS |
2778 | you were debugging a file, the file is closed and gdb no longer accesses it."), |
2779 | &detachlist, "detach ", 0, &cmdlist); | |
c906108c | 2780 | |
1bedd215 AC |
2781 | add_com ("disconnect", class_run, disconnect_command, _("\ |
2782 | Disconnect from a target.\n\ | |
6ad8ae5c | 2783 | The target will wait for another debugger to connect. Not available for\n\ |
1bedd215 | 2784 | all targets.")); |
6ad8ae5c | 2785 | |
1bedd215 AC |
2786 | add_com ("signal", class_run, signal_command, _("\ |
2787 | Continue program giving it signal specified by the argument.\n\ | |
2788 | An argument of \"0\" means continue program without giving it a signal.")); | |
c906108c | 2789 | |
1bedd215 AC |
2790 | add_com ("stepi", class_run, stepi_command, _("\ |
2791 | Step one instruction exactly.\n\ | |
2792 | Argument N means do this N times (or till program stops for another reason).")); | |
c906108c SS |
2793 | add_com_alias ("si", "stepi", class_alias, 0); |
2794 | ||
1bedd215 AC |
2795 | add_com ("nexti", class_run, nexti_command, _("\ |
2796 | Step one instruction, but proceed through subroutine calls.\n\ | |
2797 | Argument N means do this N times (or till program stops for another reason).")); | |
c906108c SS |
2798 | add_com_alias ("ni", "nexti", class_alias, 0); |
2799 | ||
1bedd215 AC |
2800 | add_com ("finish", class_run, finish_command, _("\ |
2801 | Execute until selected stack frame returns.\n\ | |
2802 | Upon return, the value returned is printed and put in the value history.")); | |
0e479716 | 2803 | add_com_alias ("fin", "finish", class_run, 1); |
c906108c | 2804 | |
1bedd215 AC |
2805 | add_com ("next", class_run, next_command, _("\ |
2806 | Step program, proceeding through subroutine calls.\n\ | |
c906108c SS |
2807 | Like the \"step\" command as long as subroutine calls do not happen;\n\ |
2808 | when they do, the call is treated as one instruction.\n\ | |
1bedd215 | 2809 | Argument N means do this N times (or till program stops for another reason).")); |
c906108c SS |
2810 | add_com_alias ("n", "next", class_run, 1); |
2811 | if (xdb_commands) | |
c5aa993b | 2812 | add_com_alias ("S", "next", class_run, 1); |
c906108c | 2813 | |
1bedd215 AC |
2814 | add_com ("step", class_run, step_command, _("\ |
2815 | Step program until it reaches a different source line.\n\ | |
2816 | Argument N means do this N times (or till program stops for another reason).")); | |
c906108c SS |
2817 | add_com_alias ("s", "step", class_run, 1); |
2818 | ||
1bedd215 AC |
2819 | c = add_com ("until", class_run, until_command, _("\ |
2820 | Execute until the program reaches a source line greater than the current\n\ | |
2821 | or a specified location (same args as break command) within the current frame.")); | |
5ba2abeb | 2822 | set_cmd_completer (c, location_completer); |
c906108c | 2823 | add_com_alias ("u", "until", class_run, 1); |
c5aa993b | 2824 | |
1bedd215 AC |
2825 | c = add_com ("advance", class_run, advance_command, _("\ |
2826 | Continue the program up to the given location (same form as args for break command).\n\ | |
2827 | Execution will also stop upon exit from the current stack frame.")); | |
ae66c1fc EZ |
2828 | set_cmd_completer (c, location_completer); |
2829 | ||
1bedd215 AC |
2830 | c = add_com ("jump", class_run, jump_command, _("\ |
2831 | Continue program being debugged at specified line or address.\n\ | |
c906108c | 2832 | Give as argument either LINENUM or *ADDR, where ADDR is an expression\n\ |
1bedd215 | 2833 | for an address to start at.")); |
5ba2abeb | 2834 | set_cmd_completer (c, location_completer); |
c906108c | 2835 | |
b83266a0 | 2836 | if (xdb_commands) |
c94fdfd0 | 2837 | { |
1bedd215 AC |
2838 | c = add_com ("go", class_run, go_command, _("\ |
2839 | Usage: go <location>\n\ | |
c906108c SS |
2840 | Continue program being debugged, stopping at specified line or \n\ |
2841 | address.\n\ | |
2842 | Give as argument either LINENUM or *ADDR, where ADDR is an \n\ | |
2843 | expression for an address to start at.\n\ | |
1bedd215 | 2844 | This command is a combination of tbreak and jump.")); |
5ba2abeb | 2845 | set_cmd_completer (c, location_completer); |
c94fdfd0 | 2846 | } |
b83266a0 | 2847 | |
c906108c | 2848 | if (xdb_commands) |
c5aa993b | 2849 | add_com_alias ("g", "go", class_run, 1); |
c906108c | 2850 | |
8cae4b3f | 2851 | c = add_com ("continue", class_run, continue_command, _("\ |
1bedd215 | 2852 | Continue program being debugged, after signal or breakpoint.\n\ |
c906108c SS |
2853 | If proceeding from breakpoint, a number N may be used as an argument,\n\ |
2854 | which means to set the ignore count of that breakpoint to N - 1 (so that\n\ | |
8cae4b3f PA |
2855 | the breakpoint won't break until the Nth time it is reached).\n\ |
2856 | \n\ | |
2857 | If non-stop mode is enabled, continue only the current thread,\n\ | |
2858 | otherwise all the threads in the program are continued. To \n\ | |
2859 | continue all stopped threads in non-stop mode, use the -a option.\n\ | |
2860 | Specifying -a and an ignore count simultaneously is an error.")); | |
c906108c SS |
2861 | add_com_alias ("c", "cont", class_run, 1); |
2862 | add_com_alias ("fg", "cont", class_run, 1); | |
2863 | ||
1bedd215 AC |
2864 | c = add_com ("run", class_run, run_command, _("\ |
2865 | Start debugged program. You may specify arguments to give it.\n\ | |
c906108c SS |
2866 | Args may include \"*\", or \"[...]\"; they are expanded using \"sh\".\n\ |
2867 | Input and output redirection with \">\", \"<\", or \">>\" are also allowed.\n\n\ | |
2868 | With no arguments, uses arguments last specified (with \"run\" or \"set args\").\n\ | |
2869 | To cancel previous arguments and run with no arguments,\n\ | |
1bedd215 | 2870 | use \"set args\" without arguments.")); |
5ba2abeb | 2871 | set_cmd_completer (c, filename_completer); |
c906108c SS |
2872 | add_com_alias ("r", "run", class_run, 1); |
2873 | if (xdb_commands) | |
2874 | add_com ("R", class_run, run_no_args_command, | |
1bedd215 | 2875 | _("Start debugged program with no arguments.")); |
c906108c | 2876 | |
1bedd215 | 2877 | c = add_com ("start", class_run, start_command, _("\ |
a4d5f2e0 JB |
2878 | Run the debugged program until the beginning of the main procedure.\n\ |
2879 | You may specify arguments to give to your program, just as with the\n\ | |
1bedd215 | 2880 | \"run\" command.")); |
a4d5f2e0 JB |
2881 | set_cmd_completer (c, filename_completer); |
2882 | ||
700b53b1 | 2883 | c = add_com ("interrupt", class_run, interrupt_target_command, |
8cae4b3f PA |
2884 | _("Interrupt the execution of the debugged program.\n\ |
2885 | If non-stop mode is enabled, interrupt only the current thread,\n\ | |
2886 | otherwise all the threads in the program are stopped. To \n\ | |
2887 | interrupt all running threads in non-stop mode, use the -a option.")); | |
43ff13b4 | 2888 | |
1bedd215 AC |
2889 | add_info ("registers", nofp_registers_info, _("\ |
2890 | List of integer registers and their contents, for selected stack frame.\n\ | |
2891 | Register name as argument means describe only that register.")); | |
7194c49b | 2892 | add_info_alias ("r", "registers", 1); |
c906108c SS |
2893 | |
2894 | if (xdb_commands) | |
1bedd215 AC |
2895 | add_com ("lr", class_info, nofp_registers_info, _("\ |
2896 | List of integer registers and their contents, for selected stack frame.\n\ | |
2897 | Register name as argument means describe only that register.")); | |
2898 | add_info ("all-registers", all_registers_info, _("\ | |
2899 | List of all registers and their contents, for selected stack frame.\n\ | |
2900 | Register name as argument means describe only that register.")); | |
c906108c SS |
2901 | |
2902 | add_info ("program", program_info, | |
1bedd215 | 2903 | _("Execution status of the program.")); |
c906108c SS |
2904 | |
2905 | add_info ("float", float_info, | |
1bedd215 | 2906 | _("Print the status of the floating point unit\n")); |
c906108c | 2907 | |
e76f1f2e | 2908 | add_info ("vector", vector_info, |
1bedd215 | 2909 | _("Print the status of the vector unit\n")); |
c906108c | 2910 | } |