Commit | Line | Data |
---|---|---|
c906108c | 1 | /* Memory-access and commands for "inferior" process, for GDB. |
990a07ab | 2 | |
6aba47ca | 3 | Copyright (C) 1986, 1987, 1988, 1989, 1990, 1991, 1992, 1993, 1994, 1995, |
9b254dd1 | 4 | 1996, 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005, 2006, 2007, |
7b6bb8da | 5 | 2008, 2009, 2010, 2011 Free Software Foundation, Inc. |
c906108c | 6 | |
c5aa993b | 7 | This file is part of GDB. |
c906108c | 8 | |
c5aa993b JM |
9 | This program is free software; you can redistribute it and/or modify |
10 | it under the terms of the GNU General Public License as published by | |
a9762ec7 | 11 | the Free Software Foundation; either version 3 of the License, or |
c5aa993b | 12 | (at your option) any later version. |
c906108c | 13 | |
c5aa993b JM |
14 | This program is distributed in the hope that it will be useful, |
15 | but WITHOUT ANY WARRANTY; without even the implied warranty of | |
16 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
17 | GNU General Public License for more details. | |
c906108c | 18 | |
c5aa993b | 19 | You should have received a copy of the GNU General Public License |
a9762ec7 | 20 | along with this program. If not, see <http://www.gnu.org/licenses/>. */ |
c906108c SS |
21 | |
22 | #include "defs.h" | |
5af949e3 | 23 | #include "arch-utils.h" |
c906108c SS |
24 | #include <signal.h> |
25 | #include "gdb_string.h" | |
26 | #include "symtab.h" | |
27 | #include "gdbtypes.h" | |
28 | #include "frame.h" | |
29 | #include "inferior.h" | |
30 | #include "environ.h" | |
31 | #include "value.h" | |
32 | #include "gdbcmd.h" | |
1adeb98a | 33 | #include "symfile.h" |
c906108c SS |
34 | #include "gdbcore.h" |
35 | #include "target.h" | |
36 | #include "language.h" | |
37 | #include "symfile.h" | |
38 | #include "objfiles.h" | |
c94fdfd0 | 39 | #include "completer.h" |
8b93c638 | 40 | #include "ui-out.h" |
6426a772 | 41 | #include "event-top.h" |
96baa820 | 42 | #include "parser-defs.h" |
36160dc4 | 43 | #include "regcache.h" |
f9418c0f | 44 | #include "reggroups.h" |
fe898f56 | 45 | #include "block.h" |
a77053c2 | 46 | #include "solib.h" |
f9418c0f | 47 | #include <ctype.h> |
92ad9cd9 | 48 | #include "gdb_assert.h" |
281b533b | 49 | #include "observer.h" |
424163ea | 50 | #include "target-descriptions.h" |
ad842144 | 51 | #include "user-regs.h" |
32c1e744 | 52 | #include "exceptions.h" |
700b53b1 | 53 | #include "cli/cli-decode.h" |
a0ef4274 | 54 | #include "gdbthread.h" |
79a45b7d | 55 | #include "valprint.h" |
edb3359d | 56 | #include "inline-frame.h" |
573cda03 | 57 | #include "tracepoint.h" |
09cee04b | 58 | #include "inf-loop.h" |
be34f849 | 59 | #include "continuations.h" |
d5551862 | 60 | |
a58dd373 | 61 | /* Functions exported for general use, in inferior.h: */ |
c906108c | 62 | |
a14ed312 | 63 | void all_registers_info (char *, int); |
c906108c | 64 | |
a14ed312 | 65 | void registers_info (char *, int); |
c906108c | 66 | |
a58dd373 EZ |
67 | void nexti_command (char *, int); |
68 | ||
69 | void stepi_command (char *, int); | |
c906108c | 70 | |
a14ed312 | 71 | void continue_command (char *, int); |
c906108c | 72 | |
a58dd373 EZ |
73 | void interrupt_target_command (char *args, int from_tty); |
74 | ||
75 | /* Local functions: */ | |
76 | ||
77 | static void nofp_registers_info (char *, int); | |
78 | ||
c055b101 CV |
79 | static void print_return_value (struct type *func_type, |
80 | struct type *value_type); | |
11cf8741 | 81 | |
a14ed312 | 82 | static void until_next_command (int); |
c906108c | 83 | |
a14ed312 | 84 | static void until_command (char *, int); |
c906108c | 85 | |
a14ed312 | 86 | static void path_info (char *, int); |
c906108c | 87 | |
a14ed312 | 88 | static void path_command (char *, int); |
c906108c | 89 | |
a14ed312 | 90 | static void unset_command (char *, int); |
c906108c | 91 | |
a14ed312 | 92 | static void float_info (char *, int); |
c906108c | 93 | |
6ad8ae5c DJ |
94 | static void disconnect_command (char *, int); |
95 | ||
a14ed312 | 96 | static void unset_environment_command (char *, int); |
c906108c | 97 | |
a14ed312 | 98 | static void set_environment_command (char *, int); |
c906108c | 99 | |
a14ed312 | 100 | static void environment_info (char *, int); |
c906108c | 101 | |
a14ed312 | 102 | static void program_info (char *, int); |
c906108c | 103 | |
a14ed312 | 104 | static void finish_command (char *, int); |
c906108c | 105 | |
a14ed312 | 106 | static void signal_command (char *, int); |
c906108c | 107 | |
a14ed312 | 108 | static void jump_command (char *, int); |
c906108c | 109 | |
a14ed312 | 110 | static void step_1 (int, int, char *); |
3e43a32a MS |
111 | static void step_once (int skip_subroutines, int single_inst, |
112 | int count, int thread); | |
c906108c | 113 | |
a14ed312 | 114 | static void next_command (char *, int); |
c906108c | 115 | |
a14ed312 | 116 | static void step_command (char *, int); |
c906108c | 117 | |
a14ed312 | 118 | static void run_command (char *, int); |
c906108c | 119 | |
a14ed312 | 120 | static void run_no_args_command (char *args, int from_tty); |
392a587b | 121 | |
a14ed312 | 122 | static void go_command (char *line_no, int from_tty); |
392a587b | 123 | |
a14ed312 | 124 | static int strip_bg_char (char **); |
43ff13b4 | 125 | |
a14ed312 | 126 | void _initialize_infcmd (void); |
c906108c | 127 | |
c906108c | 128 | #define ERROR_NO_INFERIOR \ |
8a3fe4f8 | 129 | if (!target_has_execution) error (_("The program is not being run.")); |
c906108c | 130 | |
3e43a32a MS |
131 | /* Scratch area where string containing arguments to give to the |
132 | program will be stored by 'set args'. As soon as anything is | |
133 | stored, notice_args_set will move it into per-inferior storage. | |
1777feb0 | 134 | Arguments are separated by spaces. Empty string (pointer to '\0') |
3e43a32a | 135 | means no args. */ |
c906108c | 136 | |
3f81c18a | 137 | static char *inferior_args_scratch; |
c906108c | 138 | |
3f81c18a VP |
139 | /* Scratch area where 'set inferior-tty' will store user-provided value. |
140 | We'll immediate copy it into per-inferior storage. */ | |
552c04a7 | 141 | |
3f81c18a | 142 | static char *inferior_io_terminal_scratch; |
c906108c SS |
143 | |
144 | /* Pid of our debugged inferior, or 0 if no inferior now. | |
145 | Since various parts of infrun.c test this to see whether there is a program | |
146 | being debugged it should be nonzero (currently 3 is used) for remote | |
147 | debugging. */ | |
148 | ||
39f77062 | 149 | ptid_t inferior_ptid; |
c906108c | 150 | |
c906108c SS |
151 | /* Address at which inferior stopped. */ |
152 | ||
153 | CORE_ADDR stop_pc; | |
154 | ||
c906108c SS |
155 | /* Flag indicating that a command has proceeded the inferior past the |
156 | current breakpoint. */ | |
157 | ||
158 | int breakpoint_proceeded; | |
159 | ||
c906108c SS |
160 | /* Nonzero if stopped due to completion of a stack dummy routine. */ |
161 | ||
aa7d318d | 162 | enum stop_stack_kind stop_stack_dummy; |
c906108c SS |
163 | |
164 | /* Nonzero if stopped due to a random (unexpected) signal in inferior | |
165 | process. */ | |
166 | ||
167 | int stopped_by_random_signal; | |
168 | ||
c906108c | 169 | \f |
1777feb0 | 170 | /* Accessor routines. */ |
07091751 | 171 | |
3f81c18a VP |
172 | /* Set the io terminal for the current inferior. Ownership of |
173 | TERMINAL_NAME is not transferred. */ | |
174 | ||
3cb3b8df BR |
175 | void |
176 | set_inferior_io_terminal (const char *terminal_name) | |
177 | { | |
3f81c18a VP |
178 | xfree (current_inferior ()->terminal); |
179 | current_inferior ()->terminal = terminal_name ? xstrdup (terminal_name) : 0; | |
3cb3b8df BR |
180 | } |
181 | ||
182 | const char * | |
183 | get_inferior_io_terminal (void) | |
184 | { | |
3f81c18a VP |
185 | return current_inferior ()->terminal; |
186 | } | |
187 | ||
188 | static void | |
189 | set_inferior_tty_command (char *args, int from_tty, | |
190 | struct cmd_list_element *c) | |
191 | { | |
192 | /* CLI has assigned the user-provided value to inferior_io_terminal_scratch. | |
193 | Now route it to current inferior. */ | |
194 | set_inferior_io_terminal (inferior_io_terminal_scratch); | |
195 | } | |
196 | ||
197 | static void | |
198 | show_inferior_tty_command (struct ui_file *file, int from_tty, | |
199 | struct cmd_list_element *c, const char *value) | |
200 | { | |
201 | /* Note that we ignore the passed-in value in favor of computing it | |
202 | directly. */ | |
275f2e57 | 203 | const char *inferior_io_terminal = get_inferior_io_terminal (); |
abbb1732 | 204 | |
275f2e57 DJ |
205 | if (inferior_io_terminal == NULL) |
206 | inferior_io_terminal = ""; | |
3f81c18a | 207 | fprintf_filtered (gdb_stdout, |
275f2e57 DJ |
208 | _("Terminal for future runs of program being debugged " |
209 | "is \"%s\".\n"), inferior_io_terminal); | |
3cb3b8df BR |
210 | } |
211 | ||
07091751 FN |
212 | char * |
213 | get_inferior_args (void) | |
214 | { | |
3f81c18a | 215 | if (current_inferior ()->argc != 0) |
552c04a7 | 216 | { |
3f81c18a | 217 | char *n; |
552c04a7 | 218 | |
3f81c18a VP |
219 | n = construct_inferior_arguments (current_inferior ()->argc, |
220 | current_inferior ()->argv); | |
221 | set_inferior_args (n); | |
222 | xfree (n); | |
552c04a7 TT |
223 | } |
224 | ||
3f81c18a VP |
225 | if (current_inferior ()->args == NULL) |
226 | current_inferior ()->args = xstrdup (""); | |
552c04a7 | 227 | |
3f81c18a | 228 | return current_inferior ()->args; |
07091751 FN |
229 | } |
230 | ||
3f81c18a VP |
231 | /* Set the arguments for the current inferior. Ownership of |
232 | NEWARGS is not transferred. */ | |
233 | ||
234 | void | |
07091751 FN |
235 | set_inferior_args (char *newargs) |
236 | { | |
3f81c18a VP |
237 | xfree (current_inferior ()->args); |
238 | current_inferior ()->args = newargs ? xstrdup (newargs) : NULL; | |
239 | current_inferior ()->argc = 0; | |
240 | current_inferior ()->argv = 0; | |
07091751 | 241 | } |
c5aa993b | 242 | |
552c04a7 TT |
243 | void |
244 | set_inferior_args_vector (int argc, char **argv) | |
245 | { | |
3f81c18a VP |
246 | current_inferior ()->argc = argc; |
247 | current_inferior ()->argv = argv; | |
552c04a7 TT |
248 | } |
249 | ||
250 | /* Notice when `set args' is run. */ | |
251 | static void | |
3f81c18a | 252 | set_args_command (char *args, int from_tty, struct cmd_list_element *c) |
552c04a7 | 253 | { |
3f81c18a VP |
254 | /* CLI has assigned the user-provided value to inferior_args_scratch. |
255 | Now route it to current inferior. */ | |
256 | set_inferior_args (inferior_args_scratch); | |
552c04a7 TT |
257 | } |
258 | ||
259 | /* Notice when `show args' is run. */ | |
260 | static void | |
3f81c18a VP |
261 | show_args_command (struct ui_file *file, int from_tty, |
262 | struct cmd_list_element *c, const char *value) | |
552c04a7 | 263 | { |
258c00cc TT |
264 | /* Note that we ignore the passed-in value in favor of computing it |
265 | directly. */ | |
266 | deprecated_show_value_hack (file, from_tty, c, get_inferior_args ()); | |
552c04a7 TT |
267 | } |
268 | ||
c2a727fa TT |
269 | \f |
270 | /* Compute command-line string given argument vector. This does the | |
271 | same shell processing as fork_inferior. */ | |
c2a727fa | 272 | char * |
bd57a748 | 273 | construct_inferior_arguments (int argc, char **argv) |
c2a727fa TT |
274 | { |
275 | char *result; | |
276 | ||
277 | if (STARTUP_WITH_SHELL) | |
278 | { | |
279 | /* This holds all the characters considered special to the | |
280 | typical Unix shells. We include `^' because the SunOS | |
281 | /bin/sh treats it as a synonym for `|'. */ | |
282 | char *special = "\"!#$&*()\\|[]{}<>?'\"`~^; \t\n"; | |
283 | int i; | |
284 | int length = 0; | |
285 | char *out, *cp; | |
286 | ||
287 | /* We over-compute the size. It shouldn't matter. */ | |
288 | for (i = 0; i < argc; ++i) | |
c2226152 | 289 | length += 3 * strlen (argv[i]) + 1 + 2 * (argv[i][0] == '\0'); |
c2a727fa TT |
290 | |
291 | result = (char *) xmalloc (length); | |
292 | out = result; | |
293 | ||
294 | for (i = 0; i < argc; ++i) | |
295 | { | |
296 | if (i > 0) | |
297 | *out++ = ' '; | |
298 | ||
03c6228e AS |
299 | /* Need to handle empty arguments specially. */ |
300 | if (argv[i][0] == '\0') | |
c2a727fa | 301 | { |
03c6228e AS |
302 | *out++ = '\''; |
303 | *out++ = '\''; | |
304 | } | |
305 | else | |
306 | { | |
307 | for (cp = argv[i]; *cp; ++cp) | |
308 | { | |
c2226152 AS |
309 | if (*cp == '\n') |
310 | { | |
311 | /* A newline cannot be quoted with a backslash (it | |
312 | just disappears), only by putting it inside | |
313 | quotes. */ | |
314 | *out++ = '\''; | |
315 | *out++ = '\n'; | |
316 | *out++ = '\''; | |
317 | } | |
318 | else | |
319 | { | |
320 | if (strchr (special, *cp) != NULL) | |
321 | *out++ = '\\'; | |
322 | *out++ = *cp; | |
323 | } | |
03c6228e | 324 | } |
c2a727fa TT |
325 | } |
326 | } | |
327 | *out = '\0'; | |
328 | } | |
329 | else | |
330 | { | |
331 | /* In this case we can't handle arguments that contain spaces, | |
332 | tabs, or newlines -- see breakup_args(). */ | |
333 | int i; | |
334 | int length = 0; | |
335 | ||
336 | for (i = 0; i < argc; ++i) | |
337 | { | |
338 | char *cp = strchr (argv[i], ' '); | |
339 | if (cp == NULL) | |
340 | cp = strchr (argv[i], '\t'); | |
341 | if (cp == NULL) | |
342 | cp = strchr (argv[i], '\n'); | |
343 | if (cp != NULL) | |
3e43a32a MS |
344 | error (_("can't handle command-line " |
345 | "argument containing whitespace")); | |
c2a727fa TT |
346 | length += strlen (argv[i]) + 1; |
347 | } | |
348 | ||
349 | result = (char *) xmalloc (length); | |
350 | result[0] = '\0'; | |
351 | for (i = 0; i < argc; ++i) | |
352 | { | |
353 | if (i > 0) | |
354 | strcat (result, " "); | |
355 | strcat (result, argv[i]); | |
356 | } | |
357 | } | |
358 | ||
359 | return result; | |
360 | } | |
552c04a7 TT |
361 | \f |
362 | ||
43ff13b4 JM |
363 | /* This function detects whether or not a '&' character (indicating |
364 | background execution) has been added as *the last* of the arguments ARGS | |
1777feb0 MS |
365 | of a command. If it has, it removes it and returns 1. Otherwise it |
366 | does nothing and returns 0. */ | |
c5aa993b | 367 | static int |
fba45db2 | 368 | strip_bg_char (char **args) |
43ff13b4 JM |
369 | { |
370 | char *p = NULL; | |
c5aa993b | 371 | |
9846de1b | 372 | p = strchr (*args, '&'); |
c5aa993b | 373 | |
9846de1b | 374 | if (p) |
43ff13b4 JM |
375 | { |
376 | if (p == (*args + strlen (*args) - 1)) | |
377 | { | |
c5aa993b | 378 | if (strlen (*args) > 1) |
43ff13b4 JM |
379 | { |
380 | do | |
381 | p--; | |
382 | while (*p == ' ' || *p == '\t'); | |
383 | *(p + 1) = '\0'; | |
384 | } | |
385 | else | |
386 | *args = 0; | |
387 | return 1; | |
388 | } | |
389 | } | |
390 | return 0; | |
391 | } | |
392 | ||
281b533b DJ |
393 | /* Common actions to take after creating any sort of inferior, by any |
394 | means (running, attaching, connecting, et cetera). The target | |
395 | should be stopped. */ | |
396 | ||
397 | void | |
398 | post_create_inferior (struct target_ops *target, int from_tty) | |
399 | { | |
ce406537 PA |
400 | volatile struct gdb_exception ex; |
401 | ||
b79599ff DP |
402 | /* Be sure we own the terminal in case write operations are performed. */ |
403 | target_terminal_ours (); | |
404 | ||
424163ea DJ |
405 | /* If the target hasn't taken care of this already, do it now. |
406 | Targets which need to access registers during to_open, | |
407 | to_create_inferior, or to_attach should do it earlier; but many | |
408 | don't need to. */ | |
409 | target_find_description (); | |
410 | ||
ce406537 PA |
411 | /* Now that we know the register layout, retrieve current PC. But |
412 | if the PC is unavailable (e.g., we're opening a core file with | |
413 | missing registers info), ignore it. */ | |
414 | stop_pc = 0; | |
415 | TRY_CATCH (ex, RETURN_MASK_ERROR) | |
416 | { | |
417 | stop_pc = regcache_read_pc (get_current_regcache ()); | |
418 | } | |
419 | if (ex.reason < 0 && ex.error != NOT_AVAILABLE_ERROR) | |
420 | throw_exception (ex); | |
f698437e | 421 | |
50c71eaf PA |
422 | if (exec_bfd) |
423 | { | |
9353355f DJ |
424 | /* Create the hooks to handle shared library load and unload |
425 | events. */ | |
426 | #ifdef SOLIB_CREATE_INFERIOR_HOOK | |
37706b70 | 427 | SOLIB_CREATE_INFERIOR_HOOK (PIDGET (inferior_ptid)); |
9353355f | 428 | #else |
268a4a75 JK |
429 | solib_create_inferior_hook (from_tty); |
430 | #endif | |
431 | } | |
432 | ||
433 | /* If the solist is global across processes, there's no need to | |
434 | refetch it here. */ | |
435 | if (exec_bfd && !gdbarch_has_global_solist (target_gdbarch)) | |
436 | { | |
437 | /* Sometimes the platform-specific hook loads initial shared | |
438 | libraries, and sometimes it doesn't. If it doesn't FROM_TTY will be | |
439 | incorrectly 0 but such solib targets should be fixed anyway. If we | |
440 | made all the inferior hook methods consistent, this call could be | |
441 | removed. Call it only after the solib target has been initialized by | |
442 | solib_create_inferior_hook. */ | |
443 | ||
444 | #ifdef SOLIB_ADD | |
445 | SOLIB_ADD (NULL, 0, target, auto_solib_add); | |
446 | #else | |
447 | solib_add (NULL, 0, target, auto_solib_add); | |
9353355f | 448 | #endif |
9353355f DJ |
449 | } |
450 | ||
ea5d7a99 PM |
451 | /* If the user sets watchpoints before execution having started, |
452 | then she gets software watchpoints, because GDB can't know which | |
453 | target will end up being pushed, or if it supports hardware | |
454 | watchpoints or not. breakpoint_re_set takes care of promoting | |
455 | watchpoints to hardware watchpoints if possible, however, if this | |
456 | new inferior doesn't load shared libraries or we don't pull in | |
457 | symbols from any other source on this target/arch, | |
458 | breakpoint_re_set is never called. Call it now so that software | |
459 | watchpoints get a chance to be promoted to hardware watchpoints | |
460 | if the now pushed target supports hardware watchpoints. */ | |
461 | breakpoint_re_set (); | |
462 | ||
281b533b DJ |
463 | observer_notify_inferior_created (target, from_tty); |
464 | } | |
465 | ||
a4d5f2e0 JB |
466 | /* Kill the inferior if already running. This function is designed |
467 | to be called when we are about to start the execution of the program | |
468 | from the beginning. Ask the user to confirm that he wants to restart | |
469 | the program being debugged when FROM_TTY is non-null. */ | |
c906108c | 470 | |
8edfe269 | 471 | static void |
a4d5f2e0 JB |
472 | kill_if_already_running (int from_tty) |
473 | { | |
39f77062 | 474 | if (! ptid_equal (inferior_ptid, null_ptid) && target_has_execution) |
c906108c | 475 | { |
8edfe269 DJ |
476 | /* Bail out before killing the program if we will not be able to |
477 | restart it. */ | |
478 | target_require_runnable (); | |
479 | ||
adf40b2e | 480 | if (from_tty |
9e2f0ad4 HZ |
481 | && !query (_("The program being debugged has been started already.\n\ |
482 | Start it from the beginning? "))) | |
8a3fe4f8 | 483 | error (_("Program not restarted.")); |
c906108c | 484 | target_kill (); |
c906108c | 485 | } |
a4d5f2e0 JB |
486 | } |
487 | ||
1777feb0 | 488 | /* Implement the "run" command. If TBREAK_AT_MAIN is set, then insert |
f67a969f JB |
489 | a temporary breakpoint at the begining of the main program before |
490 | running the program. */ | |
491 | ||
a4d5f2e0 | 492 | static void |
f67a969f | 493 | run_command_1 (char *args, int from_tty, int tbreak_at_main) |
a4d5f2e0 JB |
494 | { |
495 | char *exec_file; | |
29f49a6a PA |
496 | struct cleanup *old_chain; |
497 | ptid_t ptid; | |
c906108c | 498 | |
a4d5f2e0 JB |
499 | dont_repeat (); |
500 | ||
501 | kill_if_already_running (from_tty); | |
3c35e65b UW |
502 | |
503 | init_wait_for_inferior (); | |
c906108c SS |
504 | clear_breakpoint_hit_counts (); |
505 | ||
fd79ecee DJ |
506 | /* Clean up any leftovers from other runs. Some other things from |
507 | this function should probably be moved into target_pre_inferior. */ | |
508 | target_pre_inferior (from_tty); | |
509 | ||
39ad761d JB |
510 | /* The comment here used to read, "The exec file is re-read every |
511 | time we do a generic_mourn_inferior, so we just have to worry | |
512 | about the symbol file." The `generic_mourn_inferior' function | |
513 | gets called whenever the program exits. However, suppose the | |
514 | program exits, and *then* the executable file changes? We need | |
515 | to check again here. Since reopen_exec_file doesn't do anything | |
516 | if the timestamp hasn't changed, I don't see the harm. */ | |
517 | reopen_exec_file (); | |
c906108c SS |
518 | reread_symbols (); |
519 | ||
f67a969f JB |
520 | /* Insert the temporary breakpoint if a location was specified. */ |
521 | if (tbreak_at_main) | |
522 | tbreak_command (main_name (), 0); | |
523 | ||
39ad761d JB |
524 | exec_file = (char *) get_exec_file (0); |
525 | ||
9908b566 VP |
526 | if (non_stop && !target_supports_non_stop ()) |
527 | error (_("The target does not support running in non-stop mode.")); | |
528 | ||
c906108c SS |
529 | /* We keep symbols from add-symbol-file, on the grounds that the |
530 | user might want to add some symbols before running the program | |
531 | (right?). But sometimes (dynamic loading where the user manually | |
532 | introduces the new symbols with add-symbol-file), the code which | |
533 | the symbols describe does not persist between runs. Currently | |
534 | the user has to manually nuke all symbols between runs if they | |
535 | want them to go away (PR 2207). This is probably reasonable. */ | |
536 | ||
43ff13b4 | 537 | if (!args) |
6426a772 | 538 | { |
362646f5 | 539 | if (target_can_async_p ()) |
6426a772 JM |
540 | async_disable_stdin (); |
541 | } | |
43ff13b4 | 542 | else |
c906108c | 543 | { |
43ff13b4 JM |
544 | int async_exec = strip_bg_char (&args); |
545 | ||
546 | /* If we get a request for running in the bg but the target | |
1777feb0 | 547 | doesn't support it, error out. */ |
362646f5 | 548 | if (async_exec && !target_can_async_p ()) |
8a3fe4f8 | 549 | error (_("Asynchronous execution not supported on this target.")); |
43ff13b4 JM |
550 | |
551 | /* If we don't get a request of running in the bg, then we need | |
1777feb0 | 552 | to simulate synchronous (fg) execution. */ |
362646f5 | 553 | if (!async_exec && target_can_async_p ()) |
43ff13b4 | 554 | { |
1777feb0 | 555 | /* Simulate synchronous execution. */ |
6426a772 | 556 | async_disable_stdin (); |
43ff13b4 JM |
557 | } |
558 | ||
1777feb0 | 559 | /* If there were other args, beside '&', process them. */ |
43ff13b4 | 560 | if (args) |
3f81c18a | 561 | set_inferior_args (args); |
c906108c SS |
562 | } |
563 | ||
564 | if (from_tty) | |
565 | { | |
8b93c638 JM |
566 | ui_out_field_string (uiout, NULL, "Starting program"); |
567 | ui_out_text (uiout, ": "); | |
568 | if (exec_file) | |
569 | ui_out_field_string (uiout, "execfile", exec_file); | |
570 | ui_out_spaces (uiout, 1); | |
552c04a7 TT |
571 | /* We call get_inferior_args() because we might need to compute |
572 | the value now. */ | |
573 | ui_out_field_string (uiout, "infargs", get_inferior_args ()); | |
8b93c638 JM |
574 | ui_out_text (uiout, "\n"); |
575 | ui_out_flush (uiout); | |
c906108c SS |
576 | } |
577 | ||
552c04a7 TT |
578 | /* We call get_inferior_args() because we might need to compute |
579 | the value now. */ | |
580 | target_create_inferior (exec_file, get_inferior_args (), | |
3e43a32a MS |
581 | environ_vector (current_inferior ()->environment), |
582 | from_tty); | |
281b533b | 583 | |
29f49a6a PA |
584 | /* We're starting off a new process. When we get out of here, in |
585 | non-stop mode, finish the state of all threads of that process, | |
586 | but leave other threads alone, as they may be stopped in internal | |
587 | events --- the frontend shouldn't see them as stopped. In | |
588 | all-stop, always finish the state of all threads, as we may be | |
589 | resuming more than just the new process. */ | |
590 | if (non_stop) | |
591 | ptid = pid_to_ptid (ptid_get_pid (inferior_ptid)); | |
592 | else | |
593 | ptid = minus_one_ptid; | |
594 | old_chain = make_cleanup (finish_thread_state_cleanup, &ptid); | |
595 | ||
de1b3c3d PA |
596 | /* Pass zero for FROM_TTY, because at this point the "run" command |
597 | has done its thing; now we are setting up the running program. */ | |
598 | post_create_inferior (¤t_target, 0); | |
281b533b | 599 | |
74d1f91e JK |
600 | /* Start the target running. Do not use -1 continuation as it would skip |
601 | breakpoint right at the entry point. */ | |
602 | proceed (regcache_read_pc (get_current_regcache ()), TARGET_SIGNAL_0, 0); | |
c906108c | 603 | |
29f49a6a PA |
604 | /* Since there was no error, there's no need to finish the thread |
605 | states here. */ | |
606 | discard_cleanups (old_chain); | |
607 | } | |
c906108c | 608 | |
f67a969f JB |
609 | static void |
610 | run_command (char *args, int from_tty) | |
611 | { | |
612 | run_command_1 (args, from_tty, 0); | |
613 | } | |
614 | ||
c906108c | 615 | static void |
fba45db2 | 616 | run_no_args_command (char *args, int from_tty) |
c906108c | 617 | { |
3f81c18a | 618 | set_inferior_args (""); |
c906108c | 619 | } |
c906108c | 620 | \f |
c5aa993b | 621 | |
a4d5f2e0 JB |
622 | /* Start the execution of the program up until the beginning of the main |
623 | program. */ | |
624 | ||
625 | static void | |
626 | start_command (char *args, int from_tty) | |
627 | { | |
628 | /* Some languages such as Ada need to search inside the program | |
629 | minimal symbols for the location where to put the temporary | |
630 | breakpoint before starting. */ | |
631 | if (!have_minimal_symbols ()) | |
8a3fe4f8 | 632 | error (_("No symbol table loaded. Use the \"file\" command.")); |
a4d5f2e0 | 633 | |
f67a969f JB |
634 | /* Run the program until reaching the main procedure... */ |
635 | run_command_1 (args, from_tty, 1); | |
a4d5f2e0 JB |
636 | } |
637 | ||
8cae4b3f PA |
638 | static int |
639 | proceed_thread_callback (struct thread_info *thread, void *arg) | |
640 | { | |
74531fed PA |
641 | /* We go through all threads individually instead of compressing |
642 | into a single target `resume_all' request, because some threads | |
643 | may be stopped in internal breakpoints/events, or stopped waiting | |
644 | for its turn in the displaced stepping queue (that is, they are | |
645 | running && !executing). The target side has no idea about why | |
646 | the thread is stopped, so a `resume_all' command would resume too | |
647 | much. If/when GDB gains a way to tell the target `hold this | |
648 | thread stopped until I say otherwise', then we can optimize | |
649 | this. */ | |
4f8d22e3 | 650 | if (!is_stopped (thread->ptid)) |
8cae4b3f PA |
651 | return 0; |
652 | ||
dcf4fbde | 653 | switch_to_thread (thread->ptid); |
8cae4b3f PA |
654 | clear_proceed_status (); |
655 | proceed ((CORE_ADDR) -1, TARGET_SIGNAL_DEFAULT, 0); | |
656 | return 0; | |
657 | } | |
658 | ||
d729566a PA |
659 | void |
660 | ensure_valid_thread (void) | |
661 | { | |
662 | if (ptid_equal (inferior_ptid, null_ptid) | |
663 | || is_exited (inferior_ptid)) | |
3e43a32a | 664 | error (_("Cannot execute this command without a live selected thread.")); |
d729566a PA |
665 | } |
666 | ||
573cda03 | 667 | /* If the user is looking at trace frames, any resumption of execution |
1777feb0 | 668 | is likely to mix up recorded and live target data. So simply |
573cda03 SS |
669 | disallow those commands. */ |
670 | ||
671 | void | |
672 | ensure_not_tfind_mode (void) | |
673 | { | |
674 | if (get_traceframe_number () >= 0) | |
3e43a32a | 675 | error (_("Cannot execute this command while looking at trace frames.")); |
573cda03 SS |
676 | } |
677 | ||
77ebaa5a VP |
678 | void |
679 | continue_1 (int all_threads) | |
680 | { | |
3d488bfc | 681 | ERROR_NO_INFERIOR; |
573cda03 | 682 | ensure_not_tfind_mode (); |
3d488bfc | 683 | |
77ebaa5a VP |
684 | if (non_stop && all_threads) |
685 | { | |
686 | /* Don't error out if the current thread is running, because | |
abbb1732 | 687 | there may be other stopped threads. */ |
77ebaa5a VP |
688 | struct cleanup *old_chain; |
689 | ||
690 | /* Backup current thread and selected frame. */ | |
691 | old_chain = make_cleanup_restore_current_thread (); | |
692 | ||
693 | iterate_over_threads (proceed_thread_callback, NULL); | |
694 | ||
695 | /* Restore selected ptid. */ | |
696 | do_cleanups (old_chain); | |
697 | } | |
698 | else | |
699 | { | |
d729566a | 700 | ensure_valid_thread (); |
77ebaa5a VP |
701 | ensure_not_running (); |
702 | clear_proceed_status (); | |
703 | proceed ((CORE_ADDR) -1, TARGET_SIGNAL_DEFAULT, 0); | |
704 | } | |
705 | } | |
706 | ||
8cae4b3f | 707 | /* continue [-a] [proceed-count] [&] */ |
c906108c | 708 | void |
8cae4b3f | 709 | continue_command (char *args, int from_tty) |
c906108c | 710 | { |
c5aa993b | 711 | int async_exec = 0; |
8cae4b3f | 712 | int all_threads = 0; |
c906108c SS |
713 | ERROR_NO_INFERIOR; |
714 | ||
1777feb0 | 715 | /* Find out whether we must run in the background. */ |
8cae4b3f PA |
716 | if (args != NULL) |
717 | async_exec = strip_bg_char (&args); | |
43ff13b4 JM |
718 | |
719 | /* If we must run in the background, but the target can't do it, | |
1777feb0 | 720 | error out. */ |
362646f5 | 721 | if (async_exec && !target_can_async_p ()) |
8a3fe4f8 | 722 | error (_("Asynchronous execution not supported on this target.")); |
43ff13b4 JM |
723 | |
724 | /* If we are not asked to run in the bg, then prepare to run in the | |
1777feb0 | 725 | foreground, synchronously. */ |
362646f5 | 726 | if (!async_exec && target_can_async_p ()) |
c5aa993b | 727 | { |
1777feb0 | 728 | /* Simulate synchronous execution. */ |
6426a772 | 729 | async_disable_stdin (); |
43ff13b4 | 730 | } |
c906108c | 731 | |
8cae4b3f PA |
732 | if (args != NULL) |
733 | { | |
734 | if (strncmp (args, "-a", sizeof ("-a") - 1) == 0) | |
735 | { | |
736 | all_threads = 1; | |
737 | args += sizeof ("-a") - 1; | |
738 | if (*args == '\0') | |
739 | args = NULL; | |
740 | } | |
741 | } | |
742 | ||
743 | if (!non_stop && all_threads) | |
744 | error (_("`-a' is meaningless in all-stop mode.")); | |
745 | ||
746 | if (args != NULL && all_threads) | |
3e43a32a MS |
747 | error (_("Can't resume all threads and specify " |
748 | "proceed count simultaneously.")); | |
8cae4b3f PA |
749 | |
750 | /* If we have an argument left, set proceed count of breakpoint we | |
751 | stopped at. */ | |
752 | if (args != NULL) | |
c906108c | 753 | { |
347bddb7 | 754 | bpstat bs = NULL; |
8671a17b PA |
755 | int num, stat; |
756 | int stopped = 0; | |
347bddb7 PA |
757 | struct thread_info *tp; |
758 | ||
759 | if (non_stop) | |
e09875d4 | 760 | tp = find_thread_ptid (inferior_ptid); |
347bddb7 PA |
761 | else |
762 | { | |
763 | ptid_t last_ptid; | |
764 | struct target_waitstatus ws; | |
765 | ||
766 | get_last_target_status (&last_ptid, &ws); | |
e09875d4 | 767 | tp = find_thread_ptid (last_ptid); |
347bddb7 PA |
768 | } |
769 | if (tp != NULL) | |
16c381f0 | 770 | bs = tp->control.stop_bpstat; |
8671a17b PA |
771 | |
772 | while ((stat = bpstat_num (&bs, &num)) != 0) | |
773 | if (stat > 0) | |
774 | { | |
775 | set_ignore_count (num, | |
8cae4b3f | 776 | parse_and_eval_long (args) - 1, |
8671a17b PA |
777 | from_tty); |
778 | /* set_ignore_count prints a message ending with a period. | |
779 | So print two spaces before "Continuing.". */ | |
780 | if (from_tty) | |
781 | printf_filtered (" "); | |
782 | stopped = 1; | |
783 | } | |
784 | ||
785 | if (!stopped && from_tty) | |
c906108c SS |
786 | { |
787 | printf_filtered | |
788 | ("Not stopped at any breakpoint; argument ignored.\n"); | |
789 | } | |
c906108c SS |
790 | } |
791 | ||
792 | if (from_tty) | |
a3f17187 | 793 | printf_filtered (_("Continuing.\n")); |
c906108c | 794 | |
77ebaa5a | 795 | continue_1 (all_threads); |
c906108c SS |
796 | } |
797 | \f | |
edb3359d DJ |
798 | /* Record the starting point of a "step" or "next" command. */ |
799 | ||
800 | static void | |
801 | set_step_frame (void) | |
802 | { | |
803 | struct symtab_and_line sal; | |
804 | ||
805 | find_frame_sal (get_current_frame (), &sal); | |
806 | set_step_info (get_current_frame (), sal); | |
807 | } | |
808 | ||
c906108c SS |
809 | /* Step until outside of current statement. */ |
810 | ||
c906108c | 811 | static void |
fba45db2 | 812 | step_command (char *count_string, int from_tty) |
c906108c SS |
813 | { |
814 | step_1 (0, 0, count_string); | |
815 | } | |
816 | ||
817 | /* Likewise, but skip over subroutine calls as if single instructions. */ | |
818 | ||
c906108c | 819 | static void |
fba45db2 | 820 | next_command (char *count_string, int from_tty) |
c906108c SS |
821 | { |
822 | step_1 (1, 0, count_string); | |
823 | } | |
824 | ||
825 | /* Likewise, but step only one instruction. */ | |
826 | ||
c906108c | 827 | void |
fba45db2 | 828 | stepi_command (char *count_string, int from_tty) |
c906108c SS |
829 | { |
830 | step_1 (0, 1, count_string); | |
831 | } | |
832 | ||
c906108c | 833 | void |
fba45db2 | 834 | nexti_command (char *count_string, int from_tty) |
c906108c SS |
835 | { |
836 | step_1 (1, 1, count_string); | |
837 | } | |
838 | ||
186c406b | 839 | void |
611c83ae | 840 | delete_longjmp_breakpoint_cleanup (void *arg) |
74b7792f | 841 | { |
611c83ae PA |
842 | int thread = * (int *) arg; |
843 | delete_longjmp_breakpoint (thread); | |
74b7792f AC |
844 | } |
845 | ||
c906108c | 846 | static void |
fba45db2 | 847 | step_1 (int skip_subroutines, int single_inst, char *count_string) |
c906108c | 848 | { |
52f0bd74 | 849 | int count = 1; |
f107f563 | 850 | struct cleanup *cleanups = make_cleanup (null_cleanup, NULL); |
43ff13b4 | 851 | int async_exec = 0; |
b3dc826b | 852 | int thread = -1; |
c5aa993b | 853 | |
c906108c | 854 | ERROR_NO_INFERIOR; |
573cda03 | 855 | ensure_not_tfind_mode (); |
d729566a | 856 | ensure_valid_thread (); |
94cc34af | 857 | ensure_not_running (); |
43ff13b4 JM |
858 | |
859 | if (count_string) | |
860 | async_exec = strip_bg_char (&count_string); | |
c5aa993b | 861 | |
43ff13b4 | 862 | /* If we get a request for running in the bg but the target |
1777feb0 | 863 | doesn't support it, error out. */ |
362646f5 | 864 | if (async_exec && !target_can_async_p ()) |
8a3fe4f8 | 865 | error (_("Asynchronous execution not supported on this target.")); |
43ff13b4 JM |
866 | |
867 | /* If we don't get a request of running in the bg, then we need | |
1777feb0 | 868 | to simulate synchronous (fg) execution. */ |
362646f5 | 869 | if (!async_exec && target_can_async_p ()) |
43ff13b4 | 870 | { |
1777feb0 | 871 | /* Simulate synchronous execution. */ |
6426a772 | 872 | async_disable_stdin (); |
43ff13b4 JM |
873 | } |
874 | ||
bb518678 | 875 | count = count_string ? parse_and_eval_long (count_string) : 1; |
c906108c | 876 | |
1777feb0 | 877 | if (!single_inst || skip_subroutines) /* Leave si command alone. */ |
c906108c | 878 | { |
186c406b TT |
879 | struct thread_info *tp = inferior_thread (); |
880 | ||
611c83ae | 881 | if (in_thread_list (inferior_ptid)) |
b3dc826b | 882 | thread = pid_to_thread_id (inferior_ptid); |
611c83ae | 883 | |
186c406b | 884 | set_longjmp_breakpoint (tp, get_frame_id (get_current_frame ())); |
611c83ae | 885 | |
b3dc826b | 886 | make_cleanup (delete_longjmp_breakpoint_cleanup, &thread); |
c2d11a7d JM |
887 | } |
888 | ||
37d94800 | 889 | /* In synchronous case, all is well; each step_once call will step once. */ |
362646f5 | 890 | if (!target_can_async_p ()) |
c2d11a7d JM |
891 | { |
892 | for (; count > 0; count--) | |
893 | { | |
37d94800 | 894 | step_once (skip_subroutines, single_inst, count, thread); |
c2d11a7d | 895 | |
751b8ce1 PA |
896 | if (!target_has_execution) |
897 | break; | |
c2d11a7d JM |
898 | else |
899 | { | |
751b8ce1 PA |
900 | struct thread_info *tp = inferior_thread (); |
901 | ||
902 | if (!tp->control.stop_step || !tp->step_multi) | |
903 | { | |
904 | /* If we stopped for some reason that is not stepping | |
905 | there are no further steps to make. */ | |
906 | tp->step_multi = 0; | |
907 | break; | |
908 | } | |
c2d11a7d | 909 | } |
c2d11a7d JM |
910 | } |
911 | ||
f107f563 | 912 | do_cleanups (cleanups); |
c2d11a7d | 913 | } |
c2d11a7d JM |
914 | else |
915 | { | |
37d94800 PA |
916 | /* In the case of an asynchronous target things get complicated; |
917 | do only one step for now, before returning control to the | |
918 | event loop. Let the continuation figure out how many other | |
919 | steps we need to do, and handle them one at the time, through | |
920 | step_once. */ | |
b3dc826b | 921 | step_once (skip_subroutines, single_inst, count, thread); |
37d94800 | 922 | |
611c83ae | 923 | /* We are running, and the continuation is installed. It will |
f107f563 VP |
924 | disable the longjmp breakpoint as appropriate. */ |
925 | discard_cleanups (cleanups); | |
c906108c | 926 | } |
c2d11a7d | 927 | } |
c906108c | 928 | |
bfec99b2 PA |
929 | struct step_1_continuation_args |
930 | { | |
931 | int count; | |
932 | int skip_subroutines; | |
933 | int single_inst; | |
934 | int thread; | |
935 | }; | |
936 | ||
c2d11a7d JM |
937 | /* Called after we are done with one step operation, to check whether |
938 | we need to step again, before we print the prompt and return control | |
1777feb0 MS |
939 | to the user. If count is > 1, we will need to do one more call to |
940 | proceed(), via step_once(). Basically it is like step_once and | |
941 | step_1_continuation are co-recursive. */ | |
c2d11a7d | 942 | static void |
fa4cd53f | 943 | step_1_continuation (void *args, int err) |
c2d11a7d | 944 | { |
bfec99b2 | 945 | struct step_1_continuation_args *a = args; |
f13468d9 | 946 | |
af679fd0 | 947 | if (target_has_execution) |
f13468d9 | 948 | { |
af679fd0 PA |
949 | struct thread_info *tp; |
950 | ||
951 | tp = inferior_thread (); | |
fa4cd53f PA |
952 | if (!err |
953 | && tp->step_multi && tp->control.stop_step) | |
af679fd0 PA |
954 | { |
955 | /* There are more steps to make, and we did stop due to | |
956 | ending a stepping range. Do another step. */ | |
37d94800 PA |
957 | step_once (a->skip_subroutines, a->single_inst, |
958 | a->count - 1, a->thread); | |
af679fd0 PA |
959 | return; |
960 | } | |
961 | tp->step_multi = 0; | |
f107f563 | 962 | } |
af679fd0 | 963 | |
fa4cd53f PA |
964 | /* We either hit an error, or stopped for some reason that is |
965 | not stepping, or there are no further steps to make. | |
966 | Cleanup. */ | |
af679fd0 PA |
967 | if (!a->single_inst || a->skip_subroutines) |
968 | delete_longjmp_breakpoint (a->thread); | |
c2d11a7d JM |
969 | } |
970 | ||
37d94800 PA |
971 | /* Do just one step operation. This is useful to implement the 'step |
972 | n' kind of commands. In case of asynchronous targets, we will have | |
973 | to set up a continuation to be done after the target stops (after | |
974 | this one step). For synch targets, the caller handles further | |
975 | stepping. */ | |
976 | ||
977 | static void | |
611c83ae | 978 | step_once (int skip_subroutines, int single_inst, int count, int thread) |
bfec99b2 | 979 | { |
edb3359d | 980 | struct frame_info *frame = get_current_frame (); |
c2d11a7d JM |
981 | |
982 | if (count > 0) | |
c906108c | 983 | { |
4e1c45ea PA |
984 | /* Don't assume THREAD is a valid thread id. It is set to -1 if |
985 | the longjmp breakpoint was not required. Use the | |
986 | INFERIOR_PTID thread instead, which is the same thread when | |
987 | THREAD is set. */ | |
988 | struct thread_info *tp = inferior_thread (); | |
abbb1732 | 989 | |
c906108c | 990 | clear_proceed_status (); |
edb3359d | 991 | set_step_frame (); |
c906108c | 992 | |
c5aa993b | 993 | if (!single_inst) |
c906108c | 994 | { |
1641cfcc PA |
995 | CORE_ADDR pc; |
996 | ||
edb3359d DJ |
997 | /* Step at an inlined function behaves like "down". */ |
998 | if (!skip_subroutines && !single_inst | |
999 | && inline_skipped_frames (inferior_ptid)) | |
1000 | { | |
09cee04b PA |
1001 | ptid_t resume_ptid; |
1002 | ||
1003 | /* Pretend that we've ran. */ | |
1004 | resume_ptid = user_visible_resume_ptid (1); | |
1005 | set_running (resume_ptid, 1); | |
1006 | ||
edb3359d DJ |
1007 | step_into_inline_frame (inferior_ptid); |
1008 | if (count > 1) | |
1009 | step_once (skip_subroutines, single_inst, count - 1, thread); | |
1010 | else | |
09cee04b PA |
1011 | { |
1012 | /* Pretend that we've stopped. */ | |
1013 | normal_stop (); | |
1014 | ||
1015 | if (target_can_async_p ()) | |
1016 | inferior_event_handler (INF_EXEC_COMPLETE, NULL); | |
1017 | } | |
edb3359d DJ |
1018 | return; |
1019 | } | |
1020 | ||
1641cfcc PA |
1021 | pc = get_frame_pc (frame); |
1022 | find_pc_line_pc_range (pc, | |
16c381f0 JK |
1023 | &tp->control.step_range_start, |
1024 | &tp->control.step_range_end); | |
5fbbeb29 CF |
1025 | |
1026 | /* If we have no line info, switch to stepi mode. */ | |
16c381f0 JK |
1027 | if (tp->control.step_range_end == 0 && step_stop_if_no_debug) |
1028 | tp->control.step_range_start = tp->control.step_range_end = 1; | |
1029 | else if (tp->control.step_range_end == 0) | |
c906108c SS |
1030 | { |
1031 | char *name; | |
abbb1732 | 1032 | |
1641cfcc | 1033 | if (find_pc_partial_function (pc, &name, |
16c381f0 JK |
1034 | &tp->control.step_range_start, |
1035 | &tp->control.step_range_end) == 0) | |
8a3fe4f8 | 1036 | error (_("Cannot find bounds of current function")); |
c906108c SS |
1037 | |
1038 | target_terminal_ours (); | |
3e43a32a MS |
1039 | printf_filtered (_("Single stepping until exit from function %s," |
1040 | "\nwhich has no line number information.\n"), | |
1041 | name); | |
c906108c SS |
1042 | } |
1043 | } | |
1044 | else | |
1045 | { | |
1046 | /* Say we are stepping, but stop after one insn whatever it does. */ | |
16c381f0 | 1047 | tp->control.step_range_start = tp->control.step_range_end = 1; |
c906108c SS |
1048 | if (!skip_subroutines) |
1049 | /* It is stepi. | |
1050 | Don't step over function calls, not even to functions lacking | |
1051 | line numbers. */ | |
16c381f0 | 1052 | tp->control.step_over_calls = STEP_OVER_NONE; |
c906108c SS |
1053 | } |
1054 | ||
1055 | if (skip_subroutines) | |
16c381f0 | 1056 | tp->control.step_over_calls = STEP_OVER_ALL; |
c906108c | 1057 | |
95e54da7 | 1058 | tp->step_multi = (count > 1); |
f107f563 | 1059 | proceed ((CORE_ADDR) -1, TARGET_SIGNAL_DEFAULT, 1); |
bfec99b2 | 1060 | |
37d94800 PA |
1061 | /* For async targets, register a continuation to do any |
1062 | additional steps. For sync targets, the caller will handle | |
1063 | further stepping. */ | |
1064 | if (target_can_async_p ()) | |
1065 | { | |
1066 | struct step_1_continuation_args *args; | |
1067 | ||
1068 | args = xmalloc (sizeof (*args)); | |
1069 | args->skip_subroutines = skip_subroutines; | |
1070 | args->single_inst = single_inst; | |
1071 | args->count = count; | |
1072 | args->thread = thread; | |
1073 | ||
1074 | add_intermediate_continuation (tp, step_1_continuation, args, xfree); | |
1075 | } | |
c906108c | 1076 | } |
c906108c | 1077 | } |
c2d11a7d | 1078 | |
c906108c SS |
1079 | \f |
1080 | /* Continue program at specified address. */ | |
1081 | ||
1082 | static void | |
fba45db2 | 1083 | jump_command (char *arg, int from_tty) |
c906108c | 1084 | { |
5af949e3 | 1085 | struct gdbarch *gdbarch = get_current_arch (); |
52f0bd74 | 1086 | CORE_ADDR addr; |
c906108c SS |
1087 | struct symtabs_and_lines sals; |
1088 | struct symtab_and_line sal; | |
1089 | struct symbol *fn; | |
1090 | struct symbol *sfn; | |
43ff13b4 | 1091 | int async_exec = 0; |
c5aa993b | 1092 | |
c906108c | 1093 | ERROR_NO_INFERIOR; |
573cda03 | 1094 | ensure_not_tfind_mode (); |
d729566a | 1095 | ensure_valid_thread (); |
94cc34af | 1096 | ensure_not_running (); |
c906108c | 1097 | |
1777feb0 | 1098 | /* Find out whether we must run in the background. */ |
43ff13b4 JM |
1099 | if (arg != NULL) |
1100 | async_exec = strip_bg_char (&arg); | |
1101 | ||
1102 | /* If we must run in the background, but the target can't do it, | |
1777feb0 | 1103 | error out. */ |
362646f5 | 1104 | if (async_exec && !target_can_async_p ()) |
8a3fe4f8 | 1105 | error (_("Asynchronous execution not supported on this target.")); |
43ff13b4 | 1106 | |
c906108c | 1107 | if (!arg) |
e2e0b3e5 | 1108 | error_no_arg (_("starting address")); |
c906108c SS |
1109 | |
1110 | sals = decode_line_spec_1 (arg, 1); | |
1111 | if (sals.nelts != 1) | |
1112 | { | |
8a3fe4f8 | 1113 | error (_("Unreasonable jump request")); |
c906108c SS |
1114 | } |
1115 | ||
1116 | sal = sals.sals[0]; | |
b8c9b27d | 1117 | xfree (sals.sals); |
c906108c SS |
1118 | |
1119 | if (sal.symtab == 0 && sal.pc == 0) | |
8a3fe4f8 | 1120 | error (_("No source file has been specified.")); |
c906108c | 1121 | |
1777feb0 | 1122 | resolve_sal_pc (&sal); /* May error out. */ |
c906108c | 1123 | |
1777feb0 | 1124 | /* See if we are trying to jump to another function. */ |
c906108c SS |
1125 | fn = get_frame_function (get_current_frame ()); |
1126 | sfn = find_pc_function (sal.pc); | |
1127 | if (fn != NULL && sfn != fn) | |
1128 | { | |
9e2f0ad4 | 1129 | if (!query (_("Line %d is not in `%s'. Jump anyway? "), sal.line, |
de5ad195 | 1130 | SYMBOL_PRINT_NAME (fn))) |
c906108c | 1131 | { |
8a3fe4f8 | 1132 | error (_("Not confirmed.")); |
c906108c SS |
1133 | /* NOTREACHED */ |
1134 | } | |
1135 | } | |
1136 | ||
c5aa993b | 1137 | if (sfn != NULL) |
c906108c SS |
1138 | { |
1139 | fixup_symbol_section (sfn, 0); | |
714835d5 UW |
1140 | if (section_is_overlay (SYMBOL_OBJ_SECTION (sfn)) && |
1141 | !section_is_mapped (SYMBOL_OBJ_SECTION (sfn))) | |
c906108c | 1142 | { |
3e43a32a MS |
1143 | if (!query (_("WARNING!!! Destination is in " |
1144 | "unmapped overlay! Jump anyway? "))) | |
c906108c | 1145 | { |
8a3fe4f8 | 1146 | error (_("Not confirmed.")); |
c906108c SS |
1147 | /* NOTREACHED */ |
1148 | } | |
1149 | } | |
1150 | } | |
1151 | ||
c906108c SS |
1152 | addr = sal.pc; |
1153 | ||
1154 | if (from_tty) | |
1155 | { | |
a3f17187 | 1156 | printf_filtered (_("Continuing at ")); |
5af949e3 | 1157 | fputs_filtered (paddress (gdbarch, addr), gdb_stdout); |
c906108c SS |
1158 | printf_filtered (".\n"); |
1159 | } | |
1160 | ||
89113898 | 1161 | /* If we are not asked to run in the bg, then prepare to run in the |
1777feb0 | 1162 | foreground, synchronously. */ |
89113898 PA |
1163 | if (!async_exec && target_can_async_p ()) |
1164 | { | |
1777feb0 | 1165 | /* Simulate synchronous execution. */ |
89113898 PA |
1166 | async_disable_stdin (); |
1167 | } | |
1168 | ||
c906108c SS |
1169 | clear_proceed_status (); |
1170 | proceed (addr, TARGET_SIGNAL_0, 0); | |
1171 | } | |
c906108c | 1172 | \f |
c5aa993b | 1173 | |
1777feb0 | 1174 | /* Go to line or address in current procedure. */ |
c906108c | 1175 | static void |
fba45db2 | 1176 | go_command (char *line_no, int from_tty) |
c906108c | 1177 | { |
c5aa993b | 1178 | if (line_no == (char *) NULL || !*line_no) |
f42429a6 | 1179 | printf_filtered (_("Usage: go <location>\n")); |
c906108c SS |
1180 | else |
1181 | { | |
b83266a0 SS |
1182 | tbreak_command (line_no, from_tty); |
1183 | jump_command (line_no, from_tty); | |
c906108c SS |
1184 | } |
1185 | } | |
c906108c | 1186 | \f |
c5aa993b | 1187 | |
c906108c SS |
1188 | /* Continue program giving it specified signal. */ |
1189 | ||
1190 | static void | |
fba45db2 | 1191 | signal_command (char *signum_exp, int from_tty) |
c906108c SS |
1192 | { |
1193 | enum target_signal oursig; | |
32c1e744 | 1194 | int async_exec = 0; |
c906108c SS |
1195 | |
1196 | dont_repeat (); /* Too dangerous. */ | |
1197 | ERROR_NO_INFERIOR; | |
573cda03 | 1198 | ensure_not_tfind_mode (); |
d729566a | 1199 | ensure_valid_thread (); |
94cc34af | 1200 | ensure_not_running (); |
c906108c | 1201 | |
32c1e744 VP |
1202 | /* Find out whether we must run in the background. */ |
1203 | if (signum_exp != NULL) | |
1204 | async_exec = strip_bg_char (&signum_exp); | |
1205 | ||
1206 | /* If we must run in the background, but the target can't do it, | |
1207 | error out. */ | |
1208 | if (async_exec && !target_can_async_p ()) | |
1209 | error (_("Asynchronous execution not supported on this target.")); | |
1210 | ||
1211 | /* If we are not asked to run in the bg, then prepare to run in the | |
1212 | foreground, synchronously. */ | |
1213 | if (!async_exec && target_can_async_p ()) | |
1214 | { | |
1215 | /* Simulate synchronous execution. */ | |
1216 | async_disable_stdin (); | |
1217 | } | |
1218 | ||
c906108c | 1219 | if (!signum_exp) |
e2e0b3e5 | 1220 | error_no_arg (_("signal number")); |
c906108c SS |
1221 | |
1222 | /* It would be even slicker to make signal names be valid expressions, | |
1223 | (the type could be "enum $signal" or some such), then the user could | |
1224 | assign them to convenience variables. */ | |
1225 | oursig = target_signal_from_name (signum_exp); | |
1226 | ||
1227 | if (oursig == TARGET_SIGNAL_UNKNOWN) | |
1228 | { | |
1229 | /* No, try numeric. */ | |
bb518678 | 1230 | int num = parse_and_eval_long (signum_exp); |
c906108c SS |
1231 | |
1232 | if (num == 0) | |
1233 | oursig = TARGET_SIGNAL_0; | |
1234 | else | |
1235 | oursig = target_signal_from_command (num); | |
1236 | } | |
1237 | ||
1238 | if (from_tty) | |
1239 | { | |
1240 | if (oursig == TARGET_SIGNAL_0) | |
a3f17187 | 1241 | printf_filtered (_("Continuing with no signal.\n")); |
c906108c | 1242 | else |
a3f17187 | 1243 | printf_filtered (_("Continuing with signal %s.\n"), |
c906108c SS |
1244 | target_signal_to_name (oursig)); |
1245 | } | |
1246 | ||
1247 | clear_proceed_status (); | |
a12cc160 | 1248 | proceed ((CORE_ADDR) -1, oursig, 0); |
c906108c SS |
1249 | } |
1250 | ||
fa4cd53f PA |
1251 | /* Continuation args to be passed to the "until" command |
1252 | continuation. */ | |
1253 | struct until_next_continuation_args | |
1254 | { | |
1255 | /* The thread that was current when the command was executed. */ | |
1256 | int thread; | |
1257 | }; | |
1258 | ||
186c406b TT |
1259 | /* A continuation callback for until_next_command. */ |
1260 | ||
1261 | static void | |
fa4cd53f | 1262 | until_next_continuation (void *arg, int err) |
186c406b | 1263 | { |
fa4cd53f | 1264 | struct until_next_continuation_args *a = arg; |
186c406b | 1265 | |
fa4cd53f | 1266 | delete_longjmp_breakpoint (a->thread); |
186c406b TT |
1267 | } |
1268 | ||
c906108c SS |
1269 | /* Proceed until we reach a different source line with pc greater than |
1270 | our current one or exit the function. We skip calls in both cases. | |
1271 | ||
1272 | Note that eventually this command should probably be changed so | |
1273 | that only source lines are printed out when we hit the breakpoint | |
1274 | we set. This may involve changes to wait_for_inferior and the | |
1275 | proceed status code. */ | |
1276 | ||
c906108c | 1277 | static void |
fba45db2 | 1278 | until_next_command (int from_tty) |
c906108c SS |
1279 | { |
1280 | struct frame_info *frame; | |
1281 | CORE_ADDR pc; | |
1282 | struct symbol *func; | |
1283 | struct symtab_and_line sal; | |
4e1c45ea | 1284 | struct thread_info *tp = inferior_thread (); |
186c406b TT |
1285 | int thread = tp->num; |
1286 | struct cleanup *old_chain; | |
c5aa993b | 1287 | |
c906108c | 1288 | clear_proceed_status (); |
edb3359d | 1289 | set_step_frame (); |
c906108c SS |
1290 | |
1291 | frame = get_current_frame (); | |
1292 | ||
1293 | /* Step until either exited from this function or greater | |
1294 | than the current line (if in symbolic section) or pc (if | |
1777feb0 | 1295 | not). */ |
c906108c | 1296 | |
1c7819ef | 1297 | pc = get_frame_pc (frame); |
c906108c | 1298 | func = find_pc_function (pc); |
c5aa993b | 1299 | |
c906108c SS |
1300 | if (!func) |
1301 | { | |
1302 | struct minimal_symbol *msymbol = lookup_minimal_symbol_by_pc (pc); | |
c5aa993b | 1303 | |
c906108c | 1304 | if (msymbol == NULL) |
8a3fe4f8 | 1305 | error (_("Execution is not within a known function.")); |
c5aa993b | 1306 | |
16c381f0 JK |
1307 | tp->control.step_range_start = SYMBOL_VALUE_ADDRESS (msymbol); |
1308 | tp->control.step_range_end = pc; | |
c906108c SS |
1309 | } |
1310 | else | |
1311 | { | |
1312 | sal = find_pc_line (pc, 0); | |
c5aa993b | 1313 | |
16c381f0 JK |
1314 | tp->control.step_range_start = BLOCK_START (SYMBOL_BLOCK_VALUE (func)); |
1315 | tp->control.step_range_end = sal.end; | |
c906108c | 1316 | } |
c5aa993b | 1317 | |
16c381f0 | 1318 | tp->control.step_over_calls = STEP_OVER_ALL; |
c906108c | 1319 | |
af679fd0 | 1320 | tp->step_multi = 0; /* Only one call to proceed */ |
c5aa993b | 1321 | |
186c406b TT |
1322 | set_longjmp_breakpoint (tp, get_frame_id (frame)); |
1323 | old_chain = make_cleanup (delete_longjmp_breakpoint_cleanup, &thread); | |
1324 | ||
2acceee2 | 1325 | proceed ((CORE_ADDR) -1, TARGET_SIGNAL_DEFAULT, 1); |
186c406b TT |
1326 | |
1327 | if (target_can_async_p () && is_running (inferior_ptid)) | |
1328 | { | |
fa4cd53f PA |
1329 | struct until_next_continuation_args *cont_args; |
1330 | ||
186c406b | 1331 | discard_cleanups (old_chain); |
fa4cd53f PA |
1332 | cont_args = XNEW (struct until_next_continuation_args); |
1333 | cont_args->thread = inferior_thread ()->num; | |
1334 | ||
1335 | add_continuation (tp, until_next_continuation, cont_args, xfree); | |
186c406b TT |
1336 | } |
1337 | else | |
1338 | do_cleanups (old_chain); | |
c906108c SS |
1339 | } |
1340 | ||
c5aa993b | 1341 | static void |
fba45db2 | 1342 | until_command (char *arg, int from_tty) |
c906108c | 1343 | { |
43ff13b4 JM |
1344 | int async_exec = 0; |
1345 | ||
4247603b | 1346 | ERROR_NO_INFERIOR; |
573cda03 | 1347 | ensure_not_tfind_mode (); |
4247603b PA |
1348 | ensure_valid_thread (); |
1349 | ensure_not_running (); | |
573cda03 | 1350 | |
1777feb0 | 1351 | /* Find out whether we must run in the background. */ |
43ff13b4 JM |
1352 | if (arg != NULL) |
1353 | async_exec = strip_bg_char (&arg); | |
1354 | ||
1355 | /* If we must run in the background, but the target can't do it, | |
1777feb0 | 1356 | error out. */ |
362646f5 | 1357 | if (async_exec && !target_can_async_p ()) |
8a3fe4f8 | 1358 | error (_("Asynchronous execution not supported on this target.")); |
43ff13b4 JM |
1359 | |
1360 | /* If we are not asked to run in the bg, then prepare to run in the | |
1777feb0 | 1361 | foreground, synchronously. */ |
362646f5 | 1362 | if (!async_exec && target_can_async_p ()) |
c5aa993b | 1363 | { |
1777feb0 | 1364 | /* Simulate synchronous execution. */ |
6426a772 | 1365 | async_disable_stdin (); |
43ff13b4 JM |
1366 | } |
1367 | ||
c906108c | 1368 | if (arg) |
ae66c1fc | 1369 | until_break_command (arg, from_tty, 0); |
c906108c SS |
1370 | else |
1371 | until_next_command (from_tty); | |
1372 | } | |
ae66c1fc EZ |
1373 | |
1374 | static void | |
1375 | advance_command (char *arg, int from_tty) | |
1376 | { | |
1377 | int async_exec = 0; | |
1378 | ||
4247603b | 1379 | ERROR_NO_INFERIOR; |
573cda03 | 1380 | ensure_not_tfind_mode (); |
4247603b PA |
1381 | ensure_valid_thread (); |
1382 | ensure_not_running (); | |
573cda03 | 1383 | |
ae66c1fc | 1384 | if (arg == NULL) |
e2e0b3e5 | 1385 | error_no_arg (_("a location")); |
ae66c1fc EZ |
1386 | |
1387 | /* Find out whether we must run in the background. */ | |
1388 | if (arg != NULL) | |
1389 | async_exec = strip_bg_char (&arg); | |
1390 | ||
1391 | /* If we must run in the background, but the target can't do it, | |
1392 | error out. */ | |
362646f5 | 1393 | if (async_exec && !target_can_async_p ()) |
8a3fe4f8 | 1394 | error (_("Asynchronous execution not supported on this target.")); |
ae66c1fc EZ |
1395 | |
1396 | /* If we are not asked to run in the bg, then prepare to run in the | |
1397 | foreground, synchronously. */ | |
362646f5 | 1398 | if (!async_exec && target_can_async_p ()) |
ae66c1fc EZ |
1399 | { |
1400 | /* Simulate synchronous execution. */ | |
1401 | async_disable_stdin (); | |
1402 | } | |
1403 | ||
1404 | until_break_command (arg, from_tty, 1); | |
1405 | } | |
c906108c | 1406 | \f |
f941662f MK |
1407 | /* Print the result of a function at the end of a 'finish' command. */ |
1408 | ||
11cf8741 | 1409 | static void |
c055b101 | 1410 | print_return_value (struct type *func_type, struct type *value_type) |
11cf8741 | 1411 | { |
d80b854b | 1412 | struct gdbarch *gdbarch = get_regcache_arch (stop_registers); |
bb472c1e MK |
1413 | struct cleanup *old_chain; |
1414 | struct ui_stream *stb; | |
44e5158b AC |
1415 | struct value *value; |
1416 | ||
181fc57c | 1417 | CHECK_TYPEDEF (value_type); |
44e5158b | 1418 | gdb_assert (TYPE_CODE (value_type) != TYPE_CODE_VOID); |
11cf8741 | 1419 | |
92ad9cd9 AC |
1420 | /* FIXME: 2003-09-27: When returning from a nested inferior function |
1421 | call, it's possible (with no help from the architecture vector) | |
1422 | to locate and return/print a "struct return" value. This is just | |
7a9dd1b2 | 1423 | a more complicated case of what is already being done in the |
92ad9cd9 AC |
1424 | inferior function call code. In fact, when inferior function |
1425 | calls are made async, this will likely be made the norm. */ | |
31db7b6c | 1426 | |
c055b101 CV |
1427 | switch (gdbarch_return_value (gdbarch, func_type, value_type, |
1428 | NULL, NULL, NULL)) | |
44e5158b | 1429 | { |
750eb019 AC |
1430 | case RETURN_VALUE_REGISTER_CONVENTION: |
1431 | case RETURN_VALUE_ABI_RETURNS_ADDRESS: | |
181fc57c | 1432 | case RETURN_VALUE_ABI_PRESERVES_ADDRESS: |
44e5158b | 1433 | value = allocate_value (value_type); |
c055b101 | 1434 | gdbarch_return_value (gdbarch, func_type, value_type, stop_registers, |
990a07ab | 1435 | value_contents_raw (value), NULL); |
750eb019 AC |
1436 | break; |
1437 | case RETURN_VALUE_STRUCT_CONVENTION: | |
1438 | value = NULL; | |
1439 | break; | |
1440 | default: | |
e2e0b3e5 | 1441 | internal_error (__FILE__, __LINE__, _("bad switch")); |
44e5158b | 1442 | } |
bb472c1e | 1443 | |
31db7b6c MK |
1444 | if (value) |
1445 | { | |
79a45b7d TT |
1446 | struct value_print_options opts; |
1447 | ||
31db7b6c | 1448 | /* Print it. */ |
1d751abe PA |
1449 | stb = ui_out_stream_new (uiout); |
1450 | old_chain = make_cleanup_ui_out_stream_delete (stb); | |
31db7b6c MK |
1451 | ui_out_text (uiout, "Value returned is "); |
1452 | ui_out_field_fmt (uiout, "gdb-result-var", "$%d", | |
1453 | record_latest_value (value)); | |
1454 | ui_out_text (uiout, " = "); | |
79a45b7d TT |
1455 | get_raw_print_options (&opts); |
1456 | value_print (value, stb->stream, &opts); | |
31db7b6c MK |
1457 | ui_out_field_stream (uiout, "return-value", stb); |
1458 | ui_out_text (uiout, "\n"); | |
1d751abe | 1459 | do_cleanups (old_chain); |
31db7b6c MK |
1460 | } |
1461 | else | |
1462 | { | |
1463 | ui_out_text (uiout, "Value returned has type: "); | |
1d751abe PA |
1464 | ui_out_field_string (uiout, "return-type", TYPE_NAME (value_type)); |
1465 | ui_out_text (uiout, "."); | |
1466 | ui_out_text (uiout, " Cannot determine contents\n"); | |
31db7b6c | 1467 | } |
11cf8741 JM |
1468 | } |
1469 | ||
43ff13b4 | 1470 | /* Stuff that needs to be done by the finish command after the target |
f941662f MK |
1471 | has stopped. In asynchronous mode, we wait for the target to stop |
1472 | in the call to poll or select in the event loop, so it is | |
1473 | impossible to do all the stuff as part of the finish_command | |
1474 | function itself. The only chance we have to complete this command | |
1475 | is in fetch_inferior_event, which is called by the event loop as | |
fa4cd53f | 1476 | soon as it detects that the target has stopped. */ |
f941662f | 1477 | |
bfec99b2 | 1478 | struct finish_command_continuation_args |
43ff13b4 | 1479 | { |
fa4cd53f PA |
1480 | /* The thread that as current when the command was executed. */ |
1481 | int thread; | |
43ff13b4 | 1482 | struct breakpoint *breakpoint; |
bfec99b2 PA |
1483 | struct symbol *function; |
1484 | }; | |
c5aa993b | 1485 | |
bfec99b2 | 1486 | static void |
fa4cd53f | 1487 | finish_command_continuation (void *arg, int err) |
bfec99b2 PA |
1488 | { |
1489 | struct finish_command_continuation_args *a = arg; | |
347bddb7 | 1490 | |
fa4cd53f | 1491 | if (!err) |
43ff13b4 | 1492 | { |
fa4cd53f PA |
1493 | struct thread_info *tp = NULL; |
1494 | bpstat bs = NULL; | |
bfec99b2 | 1495 | |
fa4cd53f PA |
1496 | if (!ptid_equal (inferior_ptid, null_ptid) |
1497 | && target_has_execution | |
1498 | && is_stopped (inferior_ptid)) | |
1499 | { | |
1500 | tp = inferior_thread (); | |
1501 | bs = tp->control.stop_bpstat; | |
1502 | } | |
f5871ec0 | 1503 | |
fa4cd53f PA |
1504 | if (bpstat_find_breakpoint (bs, a->breakpoint) != NULL |
1505 | && a->function != NULL) | |
40c549d6 | 1506 | { |
fa4cd53f PA |
1507 | struct type *value_type; |
1508 | ||
1509 | value_type = TYPE_TARGET_TYPE (SYMBOL_TYPE (a->function)); | |
1510 | if (!value_type) | |
1511 | internal_error (__FILE__, __LINE__, | |
1512 | _("finish_command: function has no target type")); | |
40c549d6 | 1513 | |
fa4cd53f | 1514 | if (TYPE_CODE (value_type) != TYPE_CODE_VOID) |
40c549d6 | 1515 | { |
fa4cd53f PA |
1516 | volatile struct gdb_exception ex; |
1517 | ||
1518 | TRY_CATCH (ex, RETURN_MASK_ALL) | |
1519 | { | |
1520 | /* print_return_value can throw an exception in some | |
1521 | circumstances. We need to catch this so that we still | |
1522 | delete the breakpoint. */ | |
1523 | print_return_value (SYMBOL_TYPE (a->function), value_type); | |
1524 | } | |
1525 | if (ex.reason < 0) | |
1526 | exception_print (gdb_stdout, ex); | |
40c549d6 | 1527 | } |
40c549d6 | 1528 | } |
fa4cd53f PA |
1529 | |
1530 | /* We suppress normal call of normal_stop observer and do it | |
1531 | here so that the *stopped notification includes the return | |
1532 | value. */ | |
1533 | if (bs != NULL && tp->control.proceed_to_finish) | |
1534 | observer_notify_normal_stop (bs, 1 /* print frame */); | |
43ff13b4 | 1535 | } |
f941662f | 1536 | |
bfec99b2 | 1537 | delete_breakpoint (a->breakpoint); |
fa4cd53f | 1538 | delete_longjmp_breakpoint (a->thread); |
43ff13b4 JM |
1539 | } |
1540 | ||
604ead4a PA |
1541 | static void |
1542 | finish_command_continuation_free_arg (void *arg) | |
1543 | { | |
604ead4a PA |
1544 | xfree (arg); |
1545 | } | |
1546 | ||
b2175913 MS |
1547 | /* finish_backward -- helper function for finish_command. */ |
1548 | ||
1549 | static void | |
1550 | finish_backward (struct symbol *function) | |
1551 | { | |
1552 | struct symtab_and_line sal; | |
1553 | struct thread_info *tp = inferior_thread (); | |
1c7819ef | 1554 | CORE_ADDR pc; |
b2175913 | 1555 | CORE_ADDR func_addr; |
b2175913 | 1556 | |
1c7819ef PA |
1557 | pc = get_frame_pc (get_current_frame ()); |
1558 | ||
1559 | if (find_pc_partial_function (pc, NULL, &func_addr, NULL) == 0) | |
b2175913 MS |
1560 | internal_error (__FILE__, __LINE__, |
1561 | _("Finish: couldn't find function.")); | |
1562 | ||
1563 | sal = find_pc_line (func_addr, 0); | |
1564 | ||
9da8c2a0 | 1565 | tp->control.proceed_to_finish = 1; |
b2175913 MS |
1566 | /* Special case: if we're sitting at the function entry point, |
1567 | then all we need to do is take a reverse singlestep. We | |
1568 | don't need to set a breakpoint, and indeed it would do us | |
1569 | no good to do so. | |
1570 | ||
1571 | Note that this can only happen at frame #0, since there's | |
1572 | no way that a function up the stack can have a return address | |
1573 | that's equal to its entry point. */ | |
1574 | ||
1c7819ef | 1575 | if (sal.pc != pc) |
b2175913 | 1576 | { |
a6d9a66e UW |
1577 | struct frame_info *frame = get_selected_frame (NULL); |
1578 | struct gdbarch *gdbarch = get_frame_arch (frame); | |
9da8c2a0 PA |
1579 | struct symtab_and_line sr_sal; |
1580 | ||
1581 | /* Set a step-resume at the function's entry point. Once that's | |
1582 | hit, we'll do one more step backwards. */ | |
1583 | init_sal (&sr_sal); | |
1584 | sr_sal.pc = sal.pc; | |
1585 | sr_sal.pspace = get_frame_program_space (frame); | |
1586 | insert_step_resume_breakpoint_at_sal (gdbarch, | |
1587 | sr_sal, null_frame_id); | |
a6d9a66e | 1588 | |
b2175913 | 1589 | proceed ((CORE_ADDR) -1, TARGET_SIGNAL_DEFAULT, 0); |
b2175913 MS |
1590 | } |
1591 | else | |
b2175913 | 1592 | { |
9da8c2a0 PA |
1593 | /* We're almost there -- we just need to back up by one more |
1594 | single-step. */ | |
16c381f0 | 1595 | tp->control.step_range_start = tp->control.step_range_end = 1; |
b2175913 MS |
1596 | proceed ((CORE_ADDR) -1, TARGET_SIGNAL_DEFAULT, 1); |
1597 | } | |
b2175913 MS |
1598 | } |
1599 | ||
1600 | /* finish_forward -- helper function for finish_command. */ | |
1601 | ||
1602 | static void | |
1603 | finish_forward (struct symbol *function, struct frame_info *frame) | |
1604 | { | |
a6d9a66e | 1605 | struct gdbarch *gdbarch = get_frame_arch (frame); |
b2175913 MS |
1606 | struct symtab_and_line sal; |
1607 | struct thread_info *tp = inferior_thread (); | |
1608 | struct breakpoint *breakpoint; | |
1609 | struct cleanup *old_chain; | |
1610 | struct finish_command_continuation_args *cargs; | |
186c406b | 1611 | int thread = tp->num; |
b2175913 MS |
1612 | |
1613 | sal = find_pc_line (get_frame_pc (frame), 0); | |
1614 | sal.pc = get_frame_pc (frame); | |
1615 | ||
a6d9a66e UW |
1616 | breakpoint = set_momentary_breakpoint (gdbarch, sal, |
1617 | get_stack_frame_id (frame), | |
b2175913 MS |
1618 | bp_finish); |
1619 | ||
1620 | old_chain = make_cleanup_delete_breakpoint (breakpoint); | |
1621 | ||
186c406b TT |
1622 | set_longjmp_breakpoint (tp, get_frame_id (frame)); |
1623 | make_cleanup (delete_longjmp_breakpoint_cleanup, &thread); | |
1624 | ||
16c381f0 JK |
1625 | /* We want stop_registers, please... */ |
1626 | tp->control.proceed_to_finish = 1; | |
b2175913 MS |
1627 | cargs = xmalloc (sizeof (*cargs)); |
1628 | ||
fa4cd53f | 1629 | cargs->thread = thread; |
b2175913 MS |
1630 | cargs->breakpoint = breakpoint; |
1631 | cargs->function = function; | |
1632 | add_continuation (tp, finish_command_continuation, cargs, | |
1633 | finish_command_continuation_free_arg); | |
6c95b8df | 1634 | proceed ((CORE_ADDR) -1, TARGET_SIGNAL_DEFAULT, 0); |
b2175913 MS |
1635 | |
1636 | discard_cleanups (old_chain); | |
1637 | if (!target_can_async_p ()) | |
fa4cd53f | 1638 | do_all_continuations (0); |
b2175913 MS |
1639 | } |
1640 | ||
f941662f MK |
1641 | /* "finish": Set a temporary breakpoint at the place the selected |
1642 | frame will return to, then continue. */ | |
c906108c SS |
1643 | |
1644 | static void | |
fba45db2 | 1645 | finish_command (char *arg, int from_tty) |
c906108c | 1646 | { |
52f0bd74 AC |
1647 | struct frame_info *frame; |
1648 | struct symbol *function; | |
43ff13b4 JM |
1649 | |
1650 | int async_exec = 0; | |
1651 | ||
4247603b | 1652 | ERROR_NO_INFERIOR; |
573cda03 | 1653 | ensure_not_tfind_mode (); |
4247603b PA |
1654 | ensure_valid_thread (); |
1655 | ensure_not_running (); | |
573cda03 | 1656 | |
f941662f | 1657 | /* Find out whether we must run in the background. */ |
43ff13b4 JM |
1658 | if (arg != NULL) |
1659 | async_exec = strip_bg_char (&arg); | |
1660 | ||
1661 | /* If we must run in the background, but the target can't do it, | |
f941662f | 1662 | error out. */ |
362646f5 | 1663 | if (async_exec && !target_can_async_p ()) |
8a3fe4f8 | 1664 | error (_("Asynchronous execution not supported on this target.")); |
43ff13b4 JM |
1665 | |
1666 | /* If we are not asked to run in the bg, then prepare to run in the | |
f941662f | 1667 | foreground, synchronously. */ |
362646f5 | 1668 | if (!async_exec && target_can_async_p ()) |
c5aa993b | 1669 | { |
f941662f | 1670 | /* Simulate synchronous execution. */ |
6426a772 | 1671 | async_disable_stdin (); |
43ff13b4 | 1672 | } |
c906108c SS |
1673 | |
1674 | if (arg) | |
8a3fe4f8 | 1675 | error (_("The \"finish\" command does not take any arguments.")); |
c906108c | 1676 | |
206415a3 | 1677 | frame = get_prev_frame (get_selected_frame (_("No selected frame."))); |
c906108c | 1678 | if (frame == 0) |
8a3fe4f8 | 1679 | error (_("\"finish\" not meaningful in the outermost frame.")); |
c906108c SS |
1680 | |
1681 | clear_proceed_status (); | |
1682 | ||
edb3359d DJ |
1683 | /* Finishing from an inline frame is completely different. We don't |
1684 | try to show the "return value" - no way to locate it. So we do | |
1685 | not need a completion. */ | |
1686 | if (get_frame_type (get_selected_frame (_("No selected frame."))) | |
1687 | == INLINE_FRAME) | |
1688 | { | |
1689 | /* Claim we are stepping in the calling frame. An empty step | |
1690 | range means that we will stop once we aren't in a function | |
1691 | called by that frame. We don't use the magic "1" value for | |
1692 | step_range_end, because then infrun will think this is nexti, | |
1693 | and not step over the rest of this inlined function call. */ | |
1694 | struct thread_info *tp = inferior_thread (); | |
1695 | struct symtab_and_line empty_sal; | |
abbb1732 | 1696 | |
edb3359d DJ |
1697 | init_sal (&empty_sal); |
1698 | set_step_info (frame, empty_sal); | |
16c381f0 JK |
1699 | tp->control.step_range_start = get_frame_pc (frame); |
1700 | tp->control.step_range_end = tp->control.step_range_start; | |
1701 | tp->control.step_over_calls = STEP_OVER_ALL; | |
edb3359d DJ |
1702 | |
1703 | /* Print info on the selected frame, including level number but not | |
1704 | source. */ | |
1705 | if (from_tty) | |
1706 | { | |
1707 | printf_filtered (_("Run till exit from ")); | |
1708 | print_stack_frame (get_selected_frame (NULL), 1, LOCATION); | |
1709 | } | |
1710 | ||
1711 | proceed ((CORE_ADDR) -1, TARGET_SIGNAL_DEFAULT, 1); | |
1712 | return; | |
1713 | } | |
1714 | ||
c906108c SS |
1715 | /* Find the function we will return from. */ |
1716 | ||
206415a3 | 1717 | function = find_pc_function (get_frame_pc (get_selected_frame (NULL))); |
c906108c | 1718 | |
f941662f MK |
1719 | /* Print info on the selected frame, including level number but not |
1720 | source. */ | |
c906108c SS |
1721 | if (from_tty) |
1722 | { | |
b2175913 MS |
1723 | if (execution_direction == EXEC_REVERSE) |
1724 | printf_filtered (_("Run back to call of ")); | |
1725 | else | |
1726 | printf_filtered (_("Run till exit from ")); | |
1727 | ||
b04f3ab4 | 1728 | print_stack_frame (get_selected_frame (NULL), 1, LOCATION); |
c906108c SS |
1729 | } |
1730 | ||
b2175913 MS |
1731 | if (execution_direction == EXEC_REVERSE) |
1732 | finish_backward (function); | |
1733 | else | |
1734 | finish_forward (function, frame); | |
c906108c SS |
1735 | } |
1736 | \f | |
f941662f | 1737 | |
c906108c | 1738 | static void |
fba45db2 | 1739 | program_info (char *args, int from_tty) |
c906108c | 1740 | { |
347bddb7 PA |
1741 | bpstat bs; |
1742 | int num, stat; | |
1743 | struct thread_info *tp; | |
1744 | ptid_t ptid; | |
c5aa993b | 1745 | |
c906108c SS |
1746 | if (!target_has_execution) |
1747 | { | |
a3f17187 | 1748 | printf_filtered (_("The program being debugged is not being run.\n")); |
c906108c SS |
1749 | return; |
1750 | } | |
1751 | ||
347bddb7 PA |
1752 | if (non_stop) |
1753 | ptid = inferior_ptid; | |
1754 | else | |
1755 | { | |
1756 | struct target_waitstatus ws; | |
abbb1732 | 1757 | |
347bddb7 PA |
1758 | get_last_target_status (&ptid, &ws); |
1759 | } | |
1760 | ||
1761 | if (ptid_equal (ptid, null_ptid) || is_exited (ptid)) | |
1762 | error (_("Invalid selected thread.")); | |
1763 | else if (is_running (ptid)) | |
1764 | error (_("Selected thread is running.")); | |
1765 | ||
e09875d4 | 1766 | tp = find_thread_ptid (ptid); |
16c381f0 | 1767 | bs = tp->control.stop_bpstat; |
347bddb7 PA |
1768 | stat = bpstat_num (&bs, &num); |
1769 | ||
c906108c | 1770 | target_files_info (); |
5af949e3 UW |
1771 | printf_filtered (_("Program stopped at %s.\n"), |
1772 | paddress (target_gdbarch, stop_pc)); | |
16c381f0 | 1773 | if (tp->control.stop_step) |
a3f17187 | 1774 | printf_filtered (_("It stopped after being stepped.\n")); |
8671a17b | 1775 | else if (stat != 0) |
c906108c SS |
1776 | { |
1777 | /* There may be several breakpoints in the same place, so this | |
c5aa993b | 1778 | isn't as strange as it seems. */ |
8671a17b | 1779 | while (stat != 0) |
c906108c | 1780 | { |
8671a17b | 1781 | if (stat < 0) |
c906108c | 1782 | { |
3e43a32a MS |
1783 | printf_filtered (_("It stopped at a breakpoint " |
1784 | "that has since been deleted.\n")); | |
c906108c SS |
1785 | } |
1786 | else | |
a3f17187 | 1787 | printf_filtered (_("It stopped at breakpoint %d.\n"), num); |
8671a17b | 1788 | stat = bpstat_num (&bs, &num); |
c906108c SS |
1789 | } |
1790 | } | |
16c381f0 | 1791 | else if (tp->suspend.stop_signal != TARGET_SIGNAL_0) |
c906108c | 1792 | { |
a3f17187 | 1793 | printf_filtered (_("It stopped with signal %s, %s.\n"), |
16c381f0 JK |
1794 | target_signal_to_name (tp->suspend.stop_signal), |
1795 | target_signal_to_string (tp->suspend.stop_signal)); | |
c906108c SS |
1796 | } |
1797 | ||
1798 | if (!from_tty) | |
1799 | { | |
3e43a32a MS |
1800 | printf_filtered (_("Type \"info stack\" or \"info " |
1801 | "registers\" for more information.\n")); | |
c906108c SS |
1802 | } |
1803 | } | |
1804 | \f | |
1805 | static void | |
fba45db2 | 1806 | environment_info (char *var, int from_tty) |
c906108c SS |
1807 | { |
1808 | if (var) | |
1809 | { | |
3f81c18a | 1810 | char *val = get_in_environ (current_inferior ()->environment, var); |
abbb1732 | 1811 | |
c906108c SS |
1812 | if (val) |
1813 | { | |
1814 | puts_filtered (var); | |
1815 | puts_filtered (" = "); | |
1816 | puts_filtered (val); | |
1817 | puts_filtered ("\n"); | |
1818 | } | |
1819 | else | |
1820 | { | |
1821 | puts_filtered ("Environment variable \""); | |
1822 | puts_filtered (var); | |
1823 | puts_filtered ("\" not defined.\n"); | |
1824 | } | |
1825 | } | |
1826 | else | |
1827 | { | |
3f81c18a | 1828 | char **vector = environ_vector (current_inferior ()->environment); |
abbb1732 | 1829 | |
c906108c SS |
1830 | while (*vector) |
1831 | { | |
1832 | puts_filtered (*vector++); | |
1833 | puts_filtered ("\n"); | |
1834 | } | |
1835 | } | |
1836 | } | |
1837 | ||
1838 | static void | |
fba45db2 | 1839 | set_environment_command (char *arg, int from_tty) |
c906108c | 1840 | { |
52f0bd74 | 1841 | char *p, *val, *var; |
c906108c SS |
1842 | int nullset = 0; |
1843 | ||
1844 | if (arg == 0) | |
e2e0b3e5 | 1845 | error_no_arg (_("environment variable and value")); |
c906108c | 1846 | |
1777feb0 | 1847 | /* Find seperation between variable name and value. */ |
c906108c SS |
1848 | p = (char *) strchr (arg, '='); |
1849 | val = (char *) strchr (arg, ' '); | |
1850 | ||
1851 | if (p != 0 && val != 0) | |
1852 | { | |
1853 | /* We have both a space and an equals. If the space is before the | |
c5aa993b | 1854 | equals, walk forward over the spaces til we see a nonspace |
1777feb0 | 1855 | (possibly the equals). */ |
c906108c SS |
1856 | if (p > val) |
1857 | while (*val == ' ') | |
1858 | val++; | |
1859 | ||
1860 | /* Now if the = is after the char following the spaces, | |
c5aa993b | 1861 | take the char following the spaces. */ |
c906108c SS |
1862 | if (p > val) |
1863 | p = val - 1; | |
1864 | } | |
1865 | else if (val != 0 && p == 0) | |
1866 | p = val; | |
1867 | ||
1868 | if (p == arg) | |
e2e0b3e5 | 1869 | error_no_arg (_("environment variable to set")); |
c906108c SS |
1870 | |
1871 | if (p == 0 || p[1] == 0) | |
1872 | { | |
1873 | nullset = 1; | |
1874 | if (p == 0) | |
1777feb0 | 1875 | p = arg + strlen (arg); /* So that savestring below will work. */ |
c906108c SS |
1876 | } |
1877 | else | |
1878 | { | |
1777feb0 | 1879 | /* Not setting variable value to null. */ |
c906108c SS |
1880 | val = p + 1; |
1881 | while (*val == ' ' || *val == '\t') | |
1882 | val++; | |
1883 | } | |
1884 | ||
c5aa993b JM |
1885 | while (p != arg && (p[-1] == ' ' || p[-1] == '\t')) |
1886 | p--; | |
c906108c SS |
1887 | |
1888 | var = savestring (arg, p - arg); | |
1889 | if (nullset) | |
1890 | { | |
3e43a32a MS |
1891 | printf_filtered (_("Setting environment variable " |
1892 | "\"%s\" to null value.\n"), | |
a3f17187 | 1893 | var); |
3f81c18a | 1894 | set_in_environ (current_inferior ()->environment, var, ""); |
c906108c SS |
1895 | } |
1896 | else | |
3f81c18a | 1897 | set_in_environ (current_inferior ()->environment, var, val); |
b8c9b27d | 1898 | xfree (var); |
c906108c SS |
1899 | } |
1900 | ||
1901 | static void | |
fba45db2 | 1902 | unset_environment_command (char *var, int from_tty) |
c906108c SS |
1903 | { |
1904 | if (var == 0) | |
1905 | { | |
1906 | /* If there is no argument, delete all environment variables. | |
c5aa993b | 1907 | Ask for confirmation if reading from the terminal. */ |
e2e0b3e5 | 1908 | if (!from_tty || query (_("Delete all environment variables? "))) |
c906108c | 1909 | { |
3f81c18a VP |
1910 | free_environ (current_inferior ()->environment); |
1911 | current_inferior ()->environment = make_environ (); | |
c906108c SS |
1912 | } |
1913 | } | |
1914 | else | |
3f81c18a | 1915 | unset_in_environ (current_inferior ()->environment, var); |
c906108c SS |
1916 | } |
1917 | ||
1777feb0 | 1918 | /* Handle the execution path (PATH variable). */ |
c906108c SS |
1919 | |
1920 | static const char path_var_name[] = "PATH"; | |
1921 | ||
c906108c | 1922 | static void |
fba45db2 | 1923 | path_info (char *args, int from_tty) |
c906108c SS |
1924 | { |
1925 | puts_filtered ("Executable and object file path: "); | |
3e43a32a MS |
1926 | puts_filtered (get_in_environ (current_inferior ()->environment, |
1927 | path_var_name)); | |
c906108c SS |
1928 | puts_filtered ("\n"); |
1929 | } | |
1930 | ||
1931 | /* Add zero or more directories to the front of the execution path. */ | |
1932 | ||
1933 | static void | |
fba45db2 | 1934 | path_command (char *dirname, int from_tty) |
c906108c SS |
1935 | { |
1936 | char *exec_path; | |
1937 | char *env; | |
abbb1732 | 1938 | |
c906108c | 1939 | dont_repeat (); |
3f81c18a | 1940 | env = get_in_environ (current_inferior ()->environment, path_var_name); |
1777feb0 | 1941 | /* Can be null if path is not set. */ |
c906108c SS |
1942 | if (!env) |
1943 | env = ""; | |
4fcf66da | 1944 | exec_path = xstrdup (env); |
c906108c | 1945 | mod_path (dirname, &exec_path); |
3f81c18a | 1946 | set_in_environ (current_inferior ()->environment, path_var_name, exec_path); |
b8c9b27d | 1947 | xfree (exec_path); |
c906108c | 1948 | if (from_tty) |
c5aa993b | 1949 | path_info ((char *) NULL, from_tty); |
c906108c | 1950 | } |
c906108c | 1951 | \f |
c5aa993b | 1952 | |
1777feb0 | 1953 | /* Print out the machine register regnum. If regnum is -1, print all |
0ab7a791 AC |
1954 | registers (print_all == 1) or all non-float and non-vector |
1955 | registers (print_all == 0). | |
c906108c SS |
1956 | |
1957 | For most machines, having all_registers_info() print the | |
0ab7a791 AC |
1958 | register(s) one per line is good enough. If a different format is |
1959 | required, (eg, for MIPS or Pyramid 90x, which both have lots of | |
1960 | regs), or there is an existing convention for showing all the | |
1961 | registers, define the architecture method PRINT_REGISTERS_INFO to | |
1962 | provide that format. */ | |
c906108c | 1963 | |
666e11c5 | 1964 | void |
0ab7a791 AC |
1965 | default_print_registers_info (struct gdbarch *gdbarch, |
1966 | struct ui_file *file, | |
1967 | struct frame_info *frame, | |
1968 | int regnum, int print_all) | |
c906108c | 1969 | { |
0ab7a791 | 1970 | int i; |
a4bd449d UW |
1971 | const int numregs = gdbarch_num_regs (gdbarch) |
1972 | + gdbarch_num_pseudo_regs (gdbarch); | |
0ab7a791 | 1973 | |
c906108c SS |
1974 | for (i = 0; i < numregs; i++) |
1975 | { | |
29ec5263 PA |
1976 | struct type *regtype; |
1977 | struct value *val; | |
1978 | ||
4782dc19 AC |
1979 | /* Decide between printing all regs, non-float / vector regs, or |
1980 | specific reg. */ | |
c5aa993b JM |
1981 | if (regnum == -1) |
1982 | { | |
f9418c0f | 1983 | if (print_all) |
4782dc19 | 1984 | { |
f9418c0f | 1985 | if (!gdbarch_register_reggroup_p (gdbarch, i, all_reggroup)) |
4782dc19 | 1986 | continue; |
f9418c0f AC |
1987 | } |
1988 | else | |
1989 | { | |
1990 | if (!gdbarch_register_reggroup_p (gdbarch, i, general_reggroup)) | |
4782dc19 AC |
1991 | continue; |
1992 | } | |
c5aa993b JM |
1993 | } |
1994 | else | |
1995 | { | |
1996 | if (i != regnum) | |
1997 | continue; | |
1998 | } | |
c906108c SS |
1999 | |
2000 | /* If the register name is empty, it is undefined for this | |
c5aa993b | 2001 | processor, so don't display anything. */ |
a4bd449d UW |
2002 | if (gdbarch_register_name (gdbarch, i) == NULL |
2003 | || *(gdbarch_register_name (gdbarch, i)) == '\0') | |
c906108c SS |
2004 | continue; |
2005 | ||
a4bd449d | 2006 | fputs_filtered (gdbarch_register_name (gdbarch, i), file); |
c9f4d572 | 2007 | print_spaces_filtered (15 - strlen (gdbarch_register_name |
a4bd449d | 2008 | (gdbarch, i)), file); |
c906108c | 2009 | |
29ec5263 PA |
2010 | regtype = register_type (gdbarch, i); |
2011 | val = allocate_value (regtype); | |
2012 | ||
c906108c | 2013 | /* Get the data in raw format. */ |
29ec5263 | 2014 | if (! frame_register_read (frame, i, value_contents_raw (val))) |
c906108c | 2015 | { |
0ab7a791 | 2016 | fprintf_filtered (file, "*value not available*\n"); |
c906108c SS |
2017 | continue; |
2018 | } | |
2019 | ||
0ab7a791 AC |
2020 | /* If virtual format is floating, print it that way, and in raw |
2021 | hex. */ | |
29ec5263 PA |
2022 | if (TYPE_CODE (regtype) == TYPE_CODE_FLT |
2023 | || TYPE_CODE (regtype) == TYPE_CODE_DECFLOAT) | |
c906108c | 2024 | { |
0ab7a791 | 2025 | int j; |
79a45b7d | 2026 | struct value_print_options opts; |
29ec5263 | 2027 | const gdb_byte *valaddr = value_contents_for_printing (val); |
c906108c | 2028 | |
79a45b7d TT |
2029 | get_user_print_options (&opts); |
2030 | opts.deref_ref = 1; | |
29ec5263 PA |
2031 | |
2032 | val_print (regtype, | |
2033 | value_contents_for_printing (val), | |
2034 | value_embedded_offset (val), 0, | |
2035 | file, 0, val, &opts, current_language); | |
c906108c | 2036 | |
0ab7a791 | 2037 | fprintf_filtered (file, "\t(raw 0x"); |
a4bd449d | 2038 | for (j = 0; j < register_size (gdbarch, i); j++) |
c906108c | 2039 | { |
0ab7a791 | 2040 | int idx; |
abbb1732 | 2041 | |
a4bd449d | 2042 | if (gdbarch_byte_order (gdbarch) == BFD_ENDIAN_BIG) |
0ab7a791 AC |
2043 | idx = j; |
2044 | else | |
a4bd449d | 2045 | idx = register_size (gdbarch, i) - 1 - j; |
29ec5263 | 2046 | fprintf_filtered (file, "%02x", (unsigned char) valaddr[idx]); |
c906108c | 2047 | } |
0ab7a791 | 2048 | fprintf_filtered (file, ")"); |
c906108c | 2049 | } |
c906108c SS |
2050 | else |
2051 | { | |
79a45b7d TT |
2052 | struct value_print_options opts; |
2053 | ||
ab4327e0 | 2054 | /* Print the register in hex. */ |
79a45b7d TT |
2055 | get_formatted_print_options (&opts, 'x'); |
2056 | opts.deref_ref = 1; | |
29ec5263 PA |
2057 | val_print (regtype, |
2058 | value_contents_for_printing (val), | |
2059 | value_embedded_offset (val), 0, | |
2060 | file, 0, val, &opts, current_language); | |
ab4327e0 EZ |
2061 | /* If not a vector register, print it also according to its |
2062 | natural format. */ | |
29ec5263 | 2063 | if (TYPE_VECTOR (regtype) == 0) |
ab4327e0 | 2064 | { |
79a45b7d TT |
2065 | get_user_print_options (&opts); |
2066 | opts.deref_ref = 1; | |
9d84ac84 | 2067 | fprintf_filtered (file, "\t"); |
29ec5263 PA |
2068 | val_print (regtype, |
2069 | value_contents_for_printing (val), | |
2070 | value_embedded_offset (val), 0, | |
2071 | file, 0, val, &opts, current_language); | |
ab4327e0 | 2072 | } |
c906108c SS |
2073 | } |
2074 | ||
0ab7a791 | 2075 | fprintf_filtered (file, "\n"); |
c906108c SS |
2076 | } |
2077 | } | |
c906108c | 2078 | |
c906108c | 2079 | void |
fba45db2 | 2080 | registers_info (char *addr_exp, int fpregs) |
c906108c | 2081 | { |
206415a3 | 2082 | struct frame_info *frame; |
a4bd449d | 2083 | struct gdbarch *gdbarch; |
c906108c SS |
2084 | |
2085 | if (!target_has_registers) | |
8a3fe4f8 | 2086 | error (_("The program has no registers now.")); |
206415a3 | 2087 | frame = get_selected_frame (NULL); |
a4bd449d | 2088 | gdbarch = get_frame_arch (frame); |
c906108c SS |
2089 | |
2090 | if (!addr_exp) | |
2091 | { | |
a4bd449d | 2092 | gdbarch_print_registers_info (gdbarch, gdb_stdout, |
206415a3 | 2093 | frame, -1, fpregs); |
c906108c SS |
2094 | return; |
2095 | } | |
2096 | ||
f9418c0f | 2097 | while (*addr_exp != '\0') |
c5aa993b | 2098 | { |
f9418c0f AC |
2099 | char *start; |
2100 | const char *end; | |
c906108c | 2101 | |
f9418c0f AC |
2102 | /* Keep skipping leading white space. */ |
2103 | if (isspace ((*addr_exp))) | |
2104 | { | |
2105 | addr_exp++; | |
2106 | continue; | |
2107 | } | |
c906108c | 2108 | |
f9418c0f AC |
2109 | /* Discard any leading ``$''. Check that there is something |
2110 | resembling a register following it. */ | |
2111 | if (addr_exp[0] == '$') | |
2112 | addr_exp++; | |
2113 | if (isspace ((*addr_exp)) || (*addr_exp) == '\0') | |
8a3fe4f8 | 2114 | error (_("Missing register name")); |
c906108c | 2115 | |
f9418c0f AC |
2116 | /* Find the start/end of this register name/num/group. */ |
2117 | start = addr_exp; | |
2118 | while ((*addr_exp) != '\0' && !isspace ((*addr_exp))) | |
2119 | addr_exp++; | |
2120 | end = addr_exp; | |
ad842144 | 2121 | |
f9418c0f AC |
2122 | /* Figure out what we've found and display it. */ |
2123 | ||
2124 | /* A register name? */ | |
2125 | { | |
029a67e4 | 2126 | int regnum = user_reg_map_name_to_regnum (gdbarch, start, end - start); |
abbb1732 | 2127 | |
f9418c0f AC |
2128 | if (regnum >= 0) |
2129 | { | |
ad842144 MR |
2130 | /* User registers lie completely outside of the range of |
2131 | normal registers. Catch them early so that the target | |
2132 | never sees them. */ | |
2133 | if (regnum >= gdbarch_num_regs (gdbarch) | |
2134 | + gdbarch_num_pseudo_regs (gdbarch)) | |
2135 | { | |
79a45b7d | 2136 | struct value_print_options opts; |
ad842144 MR |
2137 | struct value *val = value_of_user_reg (regnum, frame); |
2138 | ||
2139 | printf_filtered ("%s: ", start); | |
79a45b7d | 2140 | get_formatted_print_options (&opts, 'x'); |
ab2188aa PA |
2141 | val_print_scalar_formatted (check_typedef (value_type (val)), |
2142 | value_contents_for_printing (val), | |
2143 | value_embedded_offset (val), | |
2144 | val, | |
2145 | &opts, 0, gdb_stdout); | |
ad842144 MR |
2146 | printf_filtered ("\n"); |
2147 | } | |
2148 | else | |
2149 | gdbarch_print_registers_info (gdbarch, gdb_stdout, | |
2150 | frame, regnum, fpregs); | |
f9418c0f AC |
2151 | continue; |
2152 | } | |
2153 | } | |
ad842144 | 2154 | |
f9418c0f AC |
2155 | /* A register group? */ |
2156 | { | |
6c7d17ba | 2157 | struct reggroup *group; |
abbb1732 | 2158 | |
a4bd449d | 2159 | for (group = reggroup_next (gdbarch, NULL); |
6c7d17ba | 2160 | group != NULL; |
a4bd449d | 2161 | group = reggroup_next (gdbarch, group)) |
f9418c0f AC |
2162 | { |
2163 | /* Don't bother with a length check. Should the user | |
2164 | enter a short register group name, go with the first | |
2165 | group that matches. */ | |
6c7d17ba | 2166 | if (strncmp (start, reggroup_name (group), end - start) == 0) |
f9418c0f AC |
2167 | break; |
2168 | } | |
6c7d17ba | 2169 | if (group != NULL) |
f9418c0f AC |
2170 | { |
2171 | int regnum; | |
abbb1732 | 2172 | |
f57d151a | 2173 | for (regnum = 0; |
a4bd449d UW |
2174 | regnum < gdbarch_num_regs (gdbarch) |
2175 | + gdbarch_num_pseudo_regs (gdbarch); | |
f57d151a | 2176 | regnum++) |
f9418c0f | 2177 | { |
a4bd449d UW |
2178 | if (gdbarch_register_reggroup_p (gdbarch, regnum, group)) |
2179 | gdbarch_print_registers_info (gdbarch, | |
206415a3 | 2180 | gdb_stdout, frame, |
f9418c0f AC |
2181 | regnum, fpregs); |
2182 | } | |
2183 | continue; | |
2184 | } | |
2185 | } | |
c906108c | 2186 | |
f9418c0f | 2187 | /* Nothing matched. */ |
8a3fe4f8 | 2188 | error (_("Invalid register `%.*s'"), (int) (end - start), start); |
c5aa993b | 2189 | } |
c906108c SS |
2190 | } |
2191 | ||
2192 | void | |
fba45db2 | 2193 | all_registers_info (char *addr_exp, int from_tty) |
c906108c SS |
2194 | { |
2195 | registers_info (addr_exp, 1); | |
2196 | } | |
2197 | ||
a58dd373 | 2198 | static void |
fba45db2 | 2199 | nofp_registers_info (char *addr_exp, int from_tty) |
c906108c SS |
2200 | { |
2201 | registers_info (addr_exp, 0); | |
2202 | } | |
e76f1f2e AC |
2203 | |
2204 | static void | |
d80b854b | 2205 | print_vector_info (struct ui_file *file, |
e76f1f2e AC |
2206 | struct frame_info *frame, const char *args) |
2207 | { | |
d80b854b UW |
2208 | struct gdbarch *gdbarch = get_frame_arch (frame); |
2209 | ||
e76f1f2e AC |
2210 | if (gdbarch_print_vector_info_p (gdbarch)) |
2211 | gdbarch_print_vector_info (gdbarch, file, frame, args); | |
2212 | else | |
2213 | { | |
2214 | int regnum; | |
2215 | int printed_something = 0; | |
ab4327e0 | 2216 | |
f57d151a | 2217 | for (regnum = 0; |
a4bd449d UW |
2218 | regnum < gdbarch_num_regs (gdbarch) |
2219 | + gdbarch_num_pseudo_regs (gdbarch); | |
f57d151a | 2220 | regnum++) |
e76f1f2e | 2221 | { |
f9418c0f | 2222 | if (gdbarch_register_reggroup_p (gdbarch, regnum, vector_reggroup)) |
e76f1f2e AC |
2223 | { |
2224 | printed_something = 1; | |
e76f1f2e | 2225 | gdbarch_print_registers_info (gdbarch, file, frame, regnum, 1); |
e76f1f2e AC |
2226 | } |
2227 | } | |
2228 | if (!printed_something) | |
2229 | fprintf_filtered (file, "No vector information\n"); | |
2230 | } | |
2231 | } | |
2232 | ||
2233 | static void | |
2234 | vector_info (char *args, int from_tty) | |
2235 | { | |
206415a3 DJ |
2236 | if (!target_has_registers) |
2237 | error (_("The program has no registers now.")); | |
2238 | ||
d80b854b | 2239 | print_vector_info (gdb_stdout, get_selected_frame (NULL), args); |
e76f1f2e | 2240 | } |
c906108c | 2241 | \f |
5fd62852 PA |
2242 | /* Kill the inferior process. Make us have no inferior. */ |
2243 | ||
2244 | static void | |
2245 | kill_command (char *arg, int from_tty) | |
2246 | { | |
2247 | /* FIXME: This should not really be inferior_ptid (or target_has_execution). | |
2248 | It should be a distinct flag that indicates that a target is active, cuz | |
1777feb0 | 2249 | some targets don't have processes! */ |
5fd62852 PA |
2250 | |
2251 | if (ptid_equal (inferior_ptid, null_ptid)) | |
2252 | error (_("The program is not being run.")); | |
2253 | if (!query (_("Kill the program being debugged? "))) | |
2254 | error (_("Not confirmed.")); | |
2255 | target_kill (); | |
2256 | ||
c35b1492 PA |
2257 | /* If we still have other inferiors to debug, then don't mess with |
2258 | with their threads. */ | |
2259 | if (!have_inferiors ()) | |
5fd62852 | 2260 | { |
1777feb0 | 2261 | init_thread_list (); /* Destroy thread info. */ |
5fd62852 PA |
2262 | |
2263 | /* Killing off the inferior can leave us with a core file. If | |
2264 | so, print the state we are left in. */ | |
2265 | if (target_has_stack) | |
2266 | { | |
2267 | printf_filtered (_("In %s,\n"), target_longname); | |
2268 | print_stack_frame (get_selected_frame (NULL), 1, SRC_AND_LOC); | |
2269 | } | |
2270 | } | |
2271 | bfd_cache_close_all (); | |
2272 | } | |
c5aa993b | 2273 | |
74531fed PA |
2274 | /* Used in `attach&' command. ARG is a point to an integer |
2275 | representing a process id. Proceed threads of this process iff | |
2276 | they stopped due to debugger request, and when they did, they | |
2277 | reported a clean stop (TARGET_SIGNAL_0). Do not proceed threads | |
2278 | that have been explicitly been told to stop. */ | |
2279 | ||
2280 | static int | |
2281 | proceed_after_attach_callback (struct thread_info *thread, | |
2282 | void *arg) | |
2283 | { | |
2284 | int pid = * (int *) arg; | |
2285 | ||
2286 | if (ptid_get_pid (thread->ptid) == pid | |
2287 | && !is_exited (thread->ptid) | |
2288 | && !is_executing (thread->ptid) | |
2289 | && !thread->stop_requested | |
16c381f0 | 2290 | && thread->suspend.stop_signal == TARGET_SIGNAL_0) |
74531fed PA |
2291 | { |
2292 | switch_to_thread (thread->ptid); | |
2293 | clear_proceed_status (); | |
2294 | proceed ((CORE_ADDR) -1, TARGET_SIGNAL_DEFAULT, 0); | |
2295 | } | |
2296 | ||
2297 | return 0; | |
2298 | } | |
2299 | ||
2300 | static void | |
2301 | proceed_after_attach (int pid) | |
2302 | { | |
2303 | /* Don't error out if the current thread is running, because | |
2304 | there may be other stopped threads. */ | |
2305 | struct cleanup *old_chain; | |
2306 | ||
2307 | /* Backup current thread and selected frame. */ | |
2308 | old_chain = make_cleanup_restore_current_thread (); | |
2309 | ||
2310 | iterate_over_threads (proceed_after_attach_callback, &pid); | |
2311 | ||
2312 | /* Restore selected ptid. */ | |
2313 | do_cleanups (old_chain); | |
2314 | } | |
2315 | ||
c906108c SS |
2316 | /* |
2317 | * TODO: | |
2318 | * Should save/restore the tty state since it might be that the | |
2319 | * program to be debugged was started on this tty and it wants | |
2320 | * the tty in some state other than what we want. If it's running | |
2321 | * on another terminal or without a terminal, then saving and | |
2322 | * restoring the tty state is a harmless no-op. | |
2323 | * This only needs to be done if we are attaching to a process. | |
2324 | */ | |
2325 | ||
1777feb0 | 2326 | /* attach_command -- |
c906108c SS |
2327 | takes a program started up outside of gdb and ``attaches'' to it. |
2328 | This stops it cold in its tracks and allows us to start debugging it. | |
2329 | and wait for the trace-trap that results from attaching. */ | |
2330 | ||
9356cf8d PA |
2331 | static void |
2332 | attach_command_post_wait (char *args, int from_tty, int async_exec) | |
2333 | { | |
2334 | char *exec_file; | |
2335 | char *full_exec_path = NULL; | |
d6b48e9c | 2336 | struct inferior *inferior; |
9356cf8d | 2337 | |
d6b48e9c | 2338 | inferior = current_inferior (); |
16c381f0 | 2339 | inferior->control.stop_soon = NO_STOP_QUIETLY; |
9356cf8d PA |
2340 | |
2341 | /* If no exec file is yet known, try to determine it from the | |
2342 | process itself. */ | |
2343 | exec_file = (char *) get_exec_file (0); | |
2344 | if (!exec_file) | |
2345 | { | |
2346 | exec_file = target_pid_to_exec_file (PIDGET (inferior_ptid)); | |
2347 | if (exec_file) | |
2348 | { | |
2349 | /* It's possible we don't have a full path, but rather just a | |
2350 | filename. Some targets, such as HP-UX, don't provide the | |
2351 | full path, sigh. | |
2352 | ||
2353 | Attempt to qualify the filename against the source path. | |
2354 | (If that fails, we'll just fall back on the original | |
1777feb0 MS |
2355 | filename. Not much more we can do...) */ |
2356 | ||
9356cf8d | 2357 | if (!source_full_path_of (exec_file, &full_exec_path)) |
1b36a34b | 2358 | full_exec_path = xstrdup (exec_file); |
9356cf8d PA |
2359 | |
2360 | exec_file_attach (full_exec_path, from_tty); | |
2361 | symbol_file_add_main (full_exec_path, from_tty); | |
2362 | } | |
2363 | } | |
2364 | else | |
2365 | { | |
2366 | reopen_exec_file (); | |
2367 | reread_symbols (); | |
2368 | } | |
2369 | ||
2370 | /* Take any necessary post-attaching actions for this platform. */ | |
2371 | target_post_attach (PIDGET (inferior_ptid)); | |
2372 | ||
2373 | post_create_inferior (¤t_target, from_tty); | |
2374 | ||
2375 | /* Install inferior's terminal modes. */ | |
2376 | target_terminal_inferior (); | |
2377 | ||
2378 | if (async_exec) | |
74531fed PA |
2379 | { |
2380 | /* The user requested an `attach&', so be sure to leave threads | |
2381 | that didn't get a signal running. */ | |
2382 | ||
2383 | /* Immediatelly resume all suspended threads of this inferior, | |
2384 | and this inferior only. This should have no effect on | |
2385 | already running threads. If a thread has been stopped with a | |
2386 | signal, leave it be. */ | |
2387 | if (non_stop) | |
2388 | proceed_after_attach (inferior->pid); | |
2389 | else | |
2390 | { | |
16c381f0 | 2391 | if (inferior_thread ()->suspend.stop_signal == TARGET_SIGNAL_0) |
74531fed PA |
2392 | { |
2393 | clear_proceed_status (); | |
2394 | proceed ((CORE_ADDR) -1, TARGET_SIGNAL_DEFAULT, 0); | |
2395 | } | |
2396 | } | |
2397 | } | |
9356cf8d PA |
2398 | else |
2399 | { | |
74531fed PA |
2400 | /* The user requested a plain `attach', so be sure to leave |
2401 | the inferior stopped. */ | |
2402 | ||
9356cf8d PA |
2403 | if (target_can_async_p ()) |
2404 | async_enable_stdin (); | |
74531fed PA |
2405 | |
2406 | /* At least the current thread is already stopped. */ | |
2407 | ||
2408 | /* In all-stop, by definition, all threads have to be already | |
2409 | stopped at this point. In non-stop, however, although the | |
2410 | selected thread is stopped, others may still be executing. | |
2411 | Be sure to explicitly stop all threads of the process. This | |
2412 | should have no effect on already stopped threads. */ | |
2413 | if (non_stop) | |
2414 | target_stop (pid_to_ptid (inferior->pid)); | |
2415 | ||
2416 | /* Tell the user/frontend where we're stopped. */ | |
9356cf8d PA |
2417 | normal_stop (); |
2418 | if (deprecated_attach_hook) | |
2419 | deprecated_attach_hook (); | |
2420 | } | |
2421 | } | |
2422 | ||
bfec99b2 | 2423 | struct attach_command_continuation_args |
9356cf8d PA |
2424 | { |
2425 | char *args; | |
2426 | int from_tty; | |
2427 | int async_exec; | |
bfec99b2 | 2428 | }; |
9356cf8d | 2429 | |
bfec99b2 | 2430 | static void |
fa4cd53f | 2431 | attach_command_continuation (void *args, int err) |
bfec99b2 PA |
2432 | { |
2433 | struct attach_command_continuation_args *a = args; | |
abbb1732 | 2434 | |
fa4cd53f PA |
2435 | if (err) |
2436 | return; | |
2437 | ||
bfec99b2 | 2438 | attach_command_post_wait (a->args, a->from_tty, a->async_exec); |
9356cf8d PA |
2439 | } |
2440 | ||
604ead4a PA |
2441 | static void |
2442 | attach_command_continuation_free_args (void *args) | |
2443 | { | |
2444 | struct attach_command_continuation_args *a = args; | |
abbb1732 | 2445 | |
604ead4a PA |
2446 | xfree (a->args); |
2447 | xfree (a); | |
2448 | } | |
2449 | ||
c906108c | 2450 | void |
fba45db2 | 2451 | attach_command (char *args, int from_tty) |
c906108c | 2452 | { |
9356cf8d | 2453 | int async_exec = 0; |
cb0362bb | 2454 | struct cleanup *back_to = make_cleanup (null_cleanup, NULL); |
c906108c | 2455 | |
c5aa993b | 2456 | dont_repeat (); /* Not for the faint of heart */ |
c906108c | 2457 | |
2567c7d9 PA |
2458 | if (gdbarch_has_global_solist (target_gdbarch)) |
2459 | /* Don't complain if all processes share the same symbol | |
2460 | space. */ | |
8a305172 PA |
2461 | ; |
2462 | else if (target_has_execution) | |
c906108c | 2463 | { |
9e2f0ad4 | 2464 | if (query (_("A program is being debugged already. Kill it? "))) |
c906108c SS |
2465 | target_kill (); |
2466 | else | |
8a3fe4f8 | 2467 | error (_("Not killed.")); |
c906108c SS |
2468 | } |
2469 | ||
fd79ecee DJ |
2470 | /* Clean up any leftovers from other runs. Some other things from |
2471 | this function should probably be moved into target_pre_inferior. */ | |
2472 | target_pre_inferior (from_tty); | |
2473 | ||
9908b566 VP |
2474 | if (non_stop && !target_supports_non_stop ()) |
2475 | error (_("Cannot attach to this target in non-stop mode")); | |
2476 | ||
9356cf8d PA |
2477 | if (args) |
2478 | { | |
2479 | async_exec = strip_bg_char (&args); | |
2480 | ||
2481 | /* If we get a request for running in the bg but the target | |
1777feb0 | 2482 | doesn't support it, error out. */ |
9356cf8d PA |
2483 | if (async_exec && !target_can_async_p ()) |
2484 | error (_("Asynchronous execution not supported on this target.")); | |
2485 | } | |
2486 | ||
2487 | /* If we don't get a request of running in the bg, then we need | |
2488 | to simulate synchronous (fg) execution. */ | |
2489 | if (!async_exec && target_can_async_p ()) | |
2490 | { | |
1777feb0 | 2491 | /* Simulate synchronous execution. */ |
9356cf8d | 2492 | async_disable_stdin (); |
cb0362bb | 2493 | make_cleanup ((make_cleanup_ftype *)async_enable_stdin, NULL); |
9356cf8d PA |
2494 | } |
2495 | ||
c906108c SS |
2496 | target_attach (args, from_tty); |
2497 | ||
2498 | /* Set up the "saved terminal modes" of the inferior | |
2499 | based on what modes we are starting it with. */ | |
2500 | target_terminal_init (); | |
2501 | ||
c906108c SS |
2502 | /* Set up execution context to know that we should return from |
2503 | wait_for_inferior as soon as the target reports a stop. */ | |
2504 | init_wait_for_inferior (); | |
2505 | clear_proceed_status (); | |
c906108c | 2506 | |
74531fed PA |
2507 | if (non_stop) |
2508 | { | |
2509 | /* If we find that the current thread isn't stopped, explicitly | |
2510 | do so now, because we're going to install breakpoints and | |
2511 | poke at memory. */ | |
2512 | ||
2513 | if (async_exec) | |
2514 | /* The user requested an `attach&'; stop just one thread. */ | |
2515 | target_stop (inferior_ptid); | |
2516 | else | |
2517 | /* The user requested an `attach', so stop all threads of this | |
2518 | inferior. */ | |
2519 | target_stop (pid_to_ptid (ptid_get_pid (inferior_ptid))); | |
2520 | } | |
2521 | ||
dc177b7a PA |
2522 | /* Some system don't generate traps when attaching to inferior. |
2523 | E.g. Mach 3 or GNU hurd. */ | |
2524 | if (!target_attach_no_wait) | |
c5aa993b | 2525 | { |
d6b48e9c PA |
2526 | struct inferior *inferior = current_inferior (); |
2527 | ||
1777feb0 | 2528 | /* Careful here. See comments in inferior.h. Basically some |
dc177b7a PA |
2529 | OSes don't ignore SIGSTOPs on continue requests anymore. We |
2530 | need a way for handle_inferior_event to reset the stop_signal | |
2531 | variable after an attach, and this is what | |
2532 | STOP_QUIETLY_NO_SIGSTOP is for. */ | |
16c381f0 | 2533 | inferior->control.stop_soon = STOP_QUIETLY_NO_SIGSTOP; |
c5aa993b | 2534 | |
dc177b7a PA |
2535 | if (target_can_async_p ()) |
2536 | { | |
2537 | /* sync_execution mode. Wait for stop. */ | |
bfec99b2 PA |
2538 | struct attach_command_continuation_args *a; |
2539 | ||
2540 | a = xmalloc (sizeof (*a)); | |
2541 | a->args = xstrdup (args); | |
2542 | a->from_tty = from_tty; | |
2543 | a->async_exec = async_exec; | |
e0ba6746 PA |
2544 | add_inferior_continuation (attach_command_continuation, a, |
2545 | attach_command_continuation_free_args); | |
cb0362bb | 2546 | discard_cleanups (back_to); |
dc177b7a PA |
2547 | return; |
2548 | } | |
c906108c | 2549 | |
e4c8541f | 2550 | wait_for_inferior (); |
dc177b7a | 2551 | } |
6426a772 | 2552 | |
9356cf8d | 2553 | attach_command_post_wait (args, from_tty, async_exec); |
cb0362bb | 2554 | discard_cleanups (back_to); |
c906108c SS |
2555 | } |
2556 | ||
1941c569 PA |
2557 | /* We had just found out that the target was already attached to an |
2558 | inferior. PTID points at a thread of this new inferior, that is | |
2559 | the most likely to be stopped right now, but not necessarily so. | |
2560 | The new inferior is assumed to be already added to the inferior | |
2561 | list at this point. If LEAVE_RUNNING, then leave the threads of | |
2562 | this inferior running, except those we've explicitly seen reported | |
2563 | as stopped. */ | |
2564 | ||
2565 | void | |
2566 | notice_new_inferior (ptid_t ptid, int leave_running, int from_tty) | |
2567 | { | |
2568 | struct cleanup* old_chain; | |
2569 | int async_exec; | |
2570 | ||
2571 | old_chain = make_cleanup (null_cleanup, NULL); | |
2572 | ||
2573 | /* If in non-stop, leave threads as running as they were. If | |
2574 | they're stopped for some reason other than us telling it to, the | |
2575 | target reports a signal != TARGET_SIGNAL_0. We don't try to | |
2576 | resume threads with such a stop signal. */ | |
2577 | async_exec = non_stop; | |
2578 | ||
2579 | if (!ptid_equal (inferior_ptid, null_ptid)) | |
2580 | make_cleanup_restore_current_thread (); | |
2581 | ||
2582 | switch_to_thread (ptid); | |
2583 | ||
2584 | /* When we "notice" a new inferior we need to do all the things we | |
2585 | would normally do if we had just attached to it. */ | |
2586 | ||
2587 | if (is_executing (inferior_ptid)) | |
2588 | { | |
2589 | struct inferior *inferior = current_inferior (); | |
2590 | ||
2591 | /* We're going to install breakpoints, and poke at memory, | |
2592 | ensure that the inferior is stopped for a moment while we do | |
2593 | that. */ | |
2594 | target_stop (inferior_ptid); | |
2595 | ||
16c381f0 | 2596 | inferior->control.stop_soon = STOP_QUIETLY_REMOTE; |
1941c569 PA |
2597 | |
2598 | /* Wait for stop before proceeding. */ | |
2599 | if (target_can_async_p ()) | |
2600 | { | |
2601 | struct attach_command_continuation_args *a; | |
2602 | ||
2603 | a = xmalloc (sizeof (*a)); | |
2604 | a->args = xstrdup (""); | |
2605 | a->from_tty = from_tty; | |
2606 | a->async_exec = async_exec; | |
2607 | add_inferior_continuation (attach_command_continuation, a, | |
2608 | attach_command_continuation_free_args); | |
2609 | ||
2610 | do_cleanups (old_chain); | |
2611 | return; | |
2612 | } | |
2613 | else | |
e4c8541f | 2614 | wait_for_inferior (); |
1941c569 PA |
2615 | } |
2616 | ||
2617 | async_exec = leave_running; | |
2618 | attach_command_post_wait ("" /* args */, from_tty, async_exec); | |
2619 | ||
2620 | do_cleanups (old_chain); | |
2621 | } | |
2622 | ||
c906108c SS |
2623 | /* |
2624 | * detach_command -- | |
2625 | * takes a program previously attached to and detaches it. | |
2626 | * The program resumes execution and will no longer stop | |
2627 | * on signals, etc. We better not have left any breakpoints | |
2628 | * in the program or it'll die when it hits one. For this | |
2629 | * to work, it may be necessary for the process to have been | |
2630 | * previously attached. It *might* work if the program was | |
2631 | * started via the normal ptrace (PTRACE_TRACEME). | |
2632 | */ | |
2633 | ||
6418d433 | 2634 | void |
fba45db2 | 2635 | detach_command (char *args, int from_tty) |
c906108c | 2636 | { |
1f5d0fc9 | 2637 | dont_repeat (); /* Not for the faint of heart. */ |
d729566a PA |
2638 | |
2639 | if (ptid_equal (inferior_ptid, null_ptid)) | |
2640 | error (_("The program is not being run.")); | |
2641 | ||
33da3f1c | 2642 | disconnect_tracing (from_tty); |
d5551862 | 2643 | |
c906108c | 2644 | target_detach (args, from_tty); |
50c71eaf PA |
2645 | |
2646 | /* If the solist is global across inferiors, don't clear it when we | |
2647 | detach from a single inferior. */ | |
2648 | if (!gdbarch_has_global_solist (target_gdbarch)) | |
2649 | no_shared_libraries (NULL, from_tty); | |
8a305172 | 2650 | |
c35b1492 PA |
2651 | /* If we still have inferiors to debug, then don't mess with their |
2652 | threads. */ | |
2653 | if (!have_inferiors ()) | |
8a305172 PA |
2654 | init_thread_list (); |
2655 | ||
9a4105ab AC |
2656 | if (deprecated_detach_hook) |
2657 | deprecated_detach_hook (); | |
c906108c SS |
2658 | } |
2659 | ||
6ad8ae5c DJ |
2660 | /* Disconnect from the current target without resuming it (leaving it |
2661 | waiting for a debugger). | |
2662 | ||
2663 | We'd better not have left any breakpoints in the program or the | |
2664 | next debugger will get confused. Currently only supported for some | |
2665 | remote targets, since the normal attach mechanisms don't work on | |
2666 | stopped processes on some native platforms (e.g. GNU/Linux). */ | |
2667 | ||
2668 | static void | |
2669 | disconnect_command (char *args, int from_tty) | |
2670 | { | |
1777feb0 | 2671 | dont_repeat (); /* Not for the faint of heart. */ |
6ad8ae5c | 2672 | target_disconnect (args, from_tty); |
e85a822c | 2673 | no_shared_libraries (NULL, from_tty); |
a0ef4274 | 2674 | init_thread_list (); |
9a4105ab AC |
2675 | if (deprecated_detach_hook) |
2676 | deprecated_detach_hook (); | |
6ad8ae5c DJ |
2677 | } |
2678 | ||
77ebaa5a VP |
2679 | void |
2680 | interrupt_target_1 (int all_threads) | |
2681 | { | |
2682 | ptid_t ptid; | |
abbb1732 | 2683 | |
77ebaa5a VP |
2684 | if (all_threads) |
2685 | ptid = minus_one_ptid; | |
2686 | else | |
2687 | ptid = inferior_ptid; | |
2688 | target_stop (ptid); | |
252fbfc8 PA |
2689 | |
2690 | /* Tag the thread as having been explicitly requested to stop, so | |
2691 | other parts of gdb know not to resume this thread automatically, | |
2692 | if it was stopped due to an internal event. Limit this to | |
2693 | non-stop mode, as when debugging a multi-threaded application in | |
2694 | all-stop mode, we will only get one stop event --- it's undefined | |
2695 | which thread will report the event. */ | |
2696 | if (non_stop) | |
2697 | set_stop_requested (ptid, 1); | |
77ebaa5a VP |
2698 | } |
2699 | ||
43ff13b4 | 2700 | /* Stop the execution of the target while running in async mode, in |
8cae4b3f PA |
2701 | the backgound. In all-stop, stop the whole process. In non-stop |
2702 | mode, stop the current thread only by default, or stop all threads | |
2703 | if the `-a' switch is used. */ | |
2704 | ||
2705 | /* interrupt [-a] */ | |
8b93c638 | 2706 | void |
fba45db2 | 2707 | interrupt_target_command (char *args, int from_tty) |
43ff13b4 | 2708 | { |
362646f5 | 2709 | if (target_can_async_p ()) |
43ff13b4 | 2710 | { |
8cae4b3f PA |
2711 | int all_threads = 0; |
2712 | ||
1777feb0 | 2713 | dont_repeat (); /* Not for the faint of heart. */ |
94cc34af | 2714 | |
8cae4b3f PA |
2715 | if (args != NULL |
2716 | && strncmp (args, "-a", sizeof ("-a") - 1) == 0) | |
2717 | all_threads = 1; | |
2718 | ||
2719 | if (!non_stop && all_threads) | |
2720 | error (_("-a is meaningless in all-stop mode.")); | |
2721 | ||
77ebaa5a | 2722 | interrupt_target_1 (all_threads); |
43ff13b4 JM |
2723 | } |
2724 | } | |
2725 | ||
c906108c | 2726 | static void |
d80b854b | 2727 | print_float_info (struct ui_file *file, |
23e3a7ac | 2728 | struct frame_info *frame, const char *args) |
c906108c | 2729 | { |
d80b854b UW |
2730 | struct gdbarch *gdbarch = get_frame_arch (frame); |
2731 | ||
23e3a7ac AC |
2732 | if (gdbarch_print_float_info_p (gdbarch)) |
2733 | gdbarch_print_float_info (gdbarch, file, frame, args); | |
2734 | else | |
2735 | { | |
23e3a7ac AC |
2736 | int regnum; |
2737 | int printed_something = 0; | |
ab4327e0 | 2738 | |
f57d151a | 2739 | for (regnum = 0; |
a4bd449d UW |
2740 | regnum < gdbarch_num_regs (gdbarch) |
2741 | + gdbarch_num_pseudo_regs (gdbarch); | |
f57d151a | 2742 | regnum++) |
23e3a7ac | 2743 | { |
f9418c0f | 2744 | if (gdbarch_register_reggroup_p (gdbarch, regnum, float_reggroup)) |
23e3a7ac AC |
2745 | { |
2746 | printed_something = 1; | |
23e3a7ac | 2747 | gdbarch_print_registers_info (gdbarch, file, frame, regnum, 1); |
23e3a7ac AC |
2748 | } |
2749 | } | |
2750 | if (!printed_something) | |
3e43a32a MS |
2751 | fprintf_filtered (file, "No floating-point info " |
2752 | "available for this processor.\n"); | |
23e3a7ac AC |
2753 | } |
2754 | } | |
2755 | ||
2756 | static void | |
2757 | float_info (char *args, int from_tty) | |
2758 | { | |
206415a3 DJ |
2759 | if (!target_has_registers) |
2760 | error (_("The program has no registers now.")); | |
2761 | ||
d80b854b | 2762 | print_float_info (gdb_stdout, get_selected_frame (NULL), args); |
c906108c SS |
2763 | } |
2764 | \f | |
c906108c | 2765 | static void |
fba45db2 | 2766 | unset_command (char *args, int from_tty) |
c906108c | 2767 | { |
3e43a32a MS |
2768 | printf_filtered (_("\"unset\" must be followed by the " |
2769 | "name of an unset subcommand.\n")); | |
c906108c SS |
2770 | help_list (unsetlist, "unset ", -1, gdb_stdout); |
2771 | } | |
2772 | ||
2773 | void | |
fba45db2 | 2774 | _initialize_infcmd (void) |
c906108c | 2775 | { |
3cb3b8df BR |
2776 | struct cmd_list_element *c = NULL; |
2777 | ||
1777feb0 | 2778 | /* Add the filename of the terminal connected to inferior I/O. */ |
3cb3b8df | 2779 | add_setshow_filename_cmd ("inferior-tty", class_run, |
3f81c18a | 2780 | &inferior_io_terminal_scratch, _("\ |
3cb3b8df BR |
2781 | Set terminal for future runs of program being debugged."), _("\ |
2782 | Show terminal for future runs of program being debugged."), _("\ | |
3f81c18a VP |
2783 | Usage: set inferior-tty /dev/pts/1"), |
2784 | set_inferior_tty_command, | |
2785 | show_inferior_tty_command, | |
2786 | &setlist, &showlist); | |
3cb3b8df | 2787 | add_com_alias ("tty", "set inferior-tty", class_alias, 0); |
c906108c | 2788 | |
b4b4ac0b | 2789 | add_setshow_optional_filename_cmd ("args", class_run, |
3f81c18a | 2790 | &inferior_args_scratch, _("\ |
b4b4ac0b AC |
2791 | Set argument list to give program being debugged when it is started."), _("\ |
2792 | Show argument list to give program being debugged when it is started."), _("\ | |
2793 | Follow this command with any number of args, to be passed to the program."), | |
3f81c18a VP |
2794 | set_args_command, |
2795 | show_args_command, | |
b4b4ac0b | 2796 | &setlist, &showlist); |
c906108c | 2797 | |
1a966eab AC |
2798 | c = add_cmd ("environment", no_class, environment_info, _("\ |
2799 | The environment to give the program, or one variable's value.\n\ | |
c906108c SS |
2800 | With an argument VAR, prints the value of environment variable VAR to\n\ |
2801 | give the program being debugged. With no arguments, prints the entire\n\ | |
1a966eab | 2802 | environment to be given to the program."), &showlist); |
5ba2abeb | 2803 | set_cmd_completer (c, noop_completer); |
c906108c SS |
2804 | |
2805 | add_prefix_cmd ("unset", no_class, unset_command, | |
1bedd215 | 2806 | _("Complement to certain \"set\" commands."), |
c906108c | 2807 | &unsetlist, "unset ", 0, &cmdlist); |
c5aa993b | 2808 | |
1a966eab AC |
2809 | c = add_cmd ("environment", class_run, unset_environment_command, _("\ |
2810 | Cancel environment variable VAR for the program.\n\ | |
2811 | This does not affect the program until the next \"run\" command."), | |
c5aa993b | 2812 | &unsetlist); |
5ba2abeb | 2813 | set_cmd_completer (c, noop_completer); |
c906108c | 2814 | |
1a966eab AC |
2815 | c = add_cmd ("environment", class_run, set_environment_command, _("\ |
2816 | Set environment variable value to give the program.\n\ | |
c906108c SS |
2817 | Arguments are VAR VALUE where VAR is variable name and VALUE is value.\n\ |
2818 | VALUES of environment variables are uninterpreted strings.\n\ | |
1a966eab | 2819 | This does not affect the program until the next \"run\" command."), |
c5aa993b | 2820 | &setlist); |
5ba2abeb | 2821 | set_cmd_completer (c, noop_completer); |
c5aa993b | 2822 | |
1bedd215 AC |
2823 | c = add_com ("path", class_files, path_command, _("\ |
2824 | Add directory DIR(s) to beginning of search path for object files.\n\ | |
c906108c SS |
2825 | $cwd in the path means the current working directory.\n\ |
2826 | This path is equivalent to the $PATH shell variable. It is a list of\n\ | |
2827 | directories, separated by colons. These directories are searched to find\n\ | |
3e43a32a MS |
2828 | fully linked executable files and separately compiled object files as \ |
2829 | needed.")); | |
5ba2abeb | 2830 | set_cmd_completer (c, filename_completer); |
c906108c | 2831 | |
1a966eab AC |
2832 | c = add_cmd ("paths", no_class, path_info, _("\ |
2833 | Current search path for finding object files.\n\ | |
c906108c SS |
2834 | $cwd in the path means the current working directory.\n\ |
2835 | This path is equivalent to the $PATH shell variable. It is a list of\n\ | |
2836 | directories, separated by colons. These directories are searched to find\n\ | |
3e43a32a MS |
2837 | fully linked executable files and separately compiled object files as \ |
2838 | needed."), | |
c906108c | 2839 | &showlist); |
5ba2abeb | 2840 | set_cmd_completer (c, noop_completer); |
c906108c | 2841 | |
2277426b PA |
2842 | add_prefix_cmd ("kill", class_run, kill_command, |
2843 | _("Kill execution of program being debugged."), | |
2844 | &killlist, "kill ", 0, &cmdlist); | |
5fd62852 | 2845 | |
1bedd215 AC |
2846 | add_com ("attach", class_run, attach_command, _("\ |
2847 | Attach to a process or file outside of GDB.\n\ | |
c906108c SS |
2848 | This command attaches to another target, of the same type as your last\n\ |
2849 | \"target\" command (\"info files\" will show your target stack).\n\ | |
2850 | The command may take as argument a process id or a device file.\n\ | |
2851 | For a process id, you must have permission to send the process a signal,\n\ | |
2852 | and it must have the same effective uid as the debugger.\n\ | |
2853 | When using \"attach\" with a process id, the debugger finds the\n\ | |
2854 | program running in the process, looking first in the current working\n\ | |
2855 | directory, or (if not found there) using the source file search path\n\ | |
2856 | (see the \"directory\" command). You can also use the \"file\" command\n\ | |
1bedd215 | 2857 | to specify the program, and to load its symbol table.")); |
c906108c | 2858 | |
f73adfeb | 2859 | add_prefix_cmd ("detach", class_run, detach_command, _("\ |
1bedd215 | 2860 | Detach a process or file previously attached.\n\ |
c906108c | 2861 | If a process, it is no longer traced, and it continues its execution. If\n\ |
f73adfeb AS |
2862 | you were debugging a file, the file is closed and gdb no longer accesses it."), |
2863 | &detachlist, "detach ", 0, &cmdlist); | |
c906108c | 2864 | |
1bedd215 AC |
2865 | add_com ("disconnect", class_run, disconnect_command, _("\ |
2866 | Disconnect from a target.\n\ | |
6ad8ae5c | 2867 | The target will wait for another debugger to connect. Not available for\n\ |
1bedd215 | 2868 | all targets.")); |
6ad8ae5c | 2869 | |
1bedd215 AC |
2870 | add_com ("signal", class_run, signal_command, _("\ |
2871 | Continue program giving it signal specified by the argument.\n\ | |
2872 | An argument of \"0\" means continue program without giving it a signal.")); | |
c906108c | 2873 | |
1bedd215 AC |
2874 | add_com ("stepi", class_run, stepi_command, _("\ |
2875 | Step one instruction exactly.\n\ | |
3e43a32a MS |
2876 | Argument N means do this N times (or till program stops for another \ |
2877 | reason).")); | |
c906108c SS |
2878 | add_com_alias ("si", "stepi", class_alias, 0); |
2879 | ||
1bedd215 AC |
2880 | add_com ("nexti", class_run, nexti_command, _("\ |
2881 | Step one instruction, but proceed through subroutine calls.\n\ | |
3e43a32a MS |
2882 | Argument N means do this N times (or till program stops for another \ |
2883 | reason).")); | |
c906108c SS |
2884 | add_com_alias ("ni", "nexti", class_alias, 0); |
2885 | ||
1bedd215 AC |
2886 | add_com ("finish", class_run, finish_command, _("\ |
2887 | Execute until selected stack frame returns.\n\ | |
2888 | Upon return, the value returned is printed and put in the value history.")); | |
0e479716 | 2889 | add_com_alias ("fin", "finish", class_run, 1); |
c906108c | 2890 | |
1bedd215 AC |
2891 | add_com ("next", class_run, next_command, _("\ |
2892 | Step program, proceeding through subroutine calls.\n\ | |
c906108c SS |
2893 | Like the \"step\" command as long as subroutine calls do not happen;\n\ |
2894 | when they do, the call is treated as one instruction.\n\ | |
3e43a32a MS |
2895 | Argument N means do this N times (or till program stops for another \ |
2896 | reason).")); | |
c906108c SS |
2897 | add_com_alias ("n", "next", class_run, 1); |
2898 | if (xdb_commands) | |
c5aa993b | 2899 | add_com_alias ("S", "next", class_run, 1); |
c906108c | 2900 | |
1bedd215 AC |
2901 | add_com ("step", class_run, step_command, _("\ |
2902 | Step program until it reaches a different source line.\n\ | |
3e43a32a MS |
2903 | Argument N means do this N times (or till program stops for another \ |
2904 | reason).")); | |
c906108c SS |
2905 | add_com_alias ("s", "step", class_run, 1); |
2906 | ||
1bedd215 AC |
2907 | c = add_com ("until", class_run, until_command, _("\ |
2908 | Execute until the program reaches a source line greater than the current\n\ | |
3e43a32a MS |
2909 | or a specified location (same args as break command) within the current \ |
2910 | frame.")); | |
5ba2abeb | 2911 | set_cmd_completer (c, location_completer); |
c906108c | 2912 | add_com_alias ("u", "until", class_run, 1); |
c5aa993b | 2913 | |
1bedd215 | 2914 | c = add_com ("advance", class_run, advance_command, _("\ |
3e43a32a MS |
2915 | Continue the program up to the given location (same form as args for break \ |
2916 | command).\n\ | |
1bedd215 | 2917 | Execution will also stop upon exit from the current stack frame.")); |
ae66c1fc EZ |
2918 | set_cmd_completer (c, location_completer); |
2919 | ||
1bedd215 AC |
2920 | c = add_com ("jump", class_run, jump_command, _("\ |
2921 | Continue program being debugged at specified line or address.\n\ | |
c906108c | 2922 | Give as argument either LINENUM or *ADDR, where ADDR is an expression\n\ |
1bedd215 | 2923 | for an address to start at.")); |
5ba2abeb | 2924 | set_cmd_completer (c, location_completer); |
c906108c | 2925 | |
b83266a0 | 2926 | if (xdb_commands) |
c94fdfd0 | 2927 | { |
1bedd215 AC |
2928 | c = add_com ("go", class_run, go_command, _("\ |
2929 | Usage: go <location>\n\ | |
c906108c SS |
2930 | Continue program being debugged, stopping at specified line or \n\ |
2931 | address.\n\ | |
2932 | Give as argument either LINENUM or *ADDR, where ADDR is an \n\ | |
2933 | expression for an address to start at.\n\ | |
1bedd215 | 2934 | This command is a combination of tbreak and jump.")); |
5ba2abeb | 2935 | set_cmd_completer (c, location_completer); |
c94fdfd0 | 2936 | } |
b83266a0 | 2937 | |
c906108c | 2938 | if (xdb_commands) |
c5aa993b | 2939 | add_com_alias ("g", "go", class_run, 1); |
c906108c | 2940 | |
df983543 | 2941 | add_com ("continue", class_run, continue_command, _("\ |
1bedd215 | 2942 | Continue program being debugged, after signal or breakpoint.\n\ |
c906108c SS |
2943 | If proceeding from breakpoint, a number N may be used as an argument,\n\ |
2944 | which means to set the ignore count of that breakpoint to N - 1 (so that\n\ | |
8cae4b3f PA |
2945 | the breakpoint won't break until the Nth time it is reached).\n\ |
2946 | \n\ | |
2947 | If non-stop mode is enabled, continue only the current thread,\n\ | |
2948 | otherwise all the threads in the program are continued. To \n\ | |
2949 | continue all stopped threads in non-stop mode, use the -a option.\n\ | |
2950 | Specifying -a and an ignore count simultaneously is an error.")); | |
c906108c SS |
2951 | add_com_alias ("c", "cont", class_run, 1); |
2952 | add_com_alias ("fg", "cont", class_run, 1); | |
2953 | ||
1bedd215 AC |
2954 | c = add_com ("run", class_run, run_command, _("\ |
2955 | Start debugged program. You may specify arguments to give it.\n\ | |
c906108c | 2956 | Args may include \"*\", or \"[...]\"; they are expanded using \"sh\".\n\ |
3e43a32a MS |
2957 | Input and output redirection with \">\", \"<\", or \">>\" are also \ |
2958 | allowed.\n\n\ | |
2959 | With no arguments, uses arguments last specified (with \"run\" \ | |
2960 | or \"set args\").\n\ | |
c906108c | 2961 | To cancel previous arguments and run with no arguments,\n\ |
1bedd215 | 2962 | use \"set args\" without arguments.")); |
5ba2abeb | 2963 | set_cmd_completer (c, filename_completer); |
c906108c SS |
2964 | add_com_alias ("r", "run", class_run, 1); |
2965 | if (xdb_commands) | |
2966 | add_com ("R", class_run, run_no_args_command, | |
1bedd215 | 2967 | _("Start debugged program with no arguments.")); |
c906108c | 2968 | |
1bedd215 | 2969 | c = add_com ("start", class_run, start_command, _("\ |
a4d5f2e0 JB |
2970 | Run the debugged program until the beginning of the main procedure.\n\ |
2971 | You may specify arguments to give to your program, just as with the\n\ | |
1bedd215 | 2972 | \"run\" command.")); |
a4d5f2e0 JB |
2973 | set_cmd_completer (c, filename_completer); |
2974 | ||
df983543 MS |
2975 | add_com ("interrupt", class_run, interrupt_target_command, |
2976 | _("Interrupt the execution of the debugged program.\n\ | |
8cae4b3f PA |
2977 | If non-stop mode is enabled, interrupt only the current thread,\n\ |
2978 | otherwise all the threads in the program are stopped. To \n\ | |
2979 | interrupt all running threads in non-stop mode, use the -a option.")); | |
43ff13b4 | 2980 | |
1bedd215 AC |
2981 | add_info ("registers", nofp_registers_info, _("\ |
2982 | List of integer registers and their contents, for selected stack frame.\n\ | |
2983 | Register name as argument means describe only that register.")); | |
7194c49b | 2984 | add_info_alias ("r", "registers", 1); |
c906108c SS |
2985 | |
2986 | if (xdb_commands) | |
1bedd215 AC |
2987 | add_com ("lr", class_info, nofp_registers_info, _("\ |
2988 | List of integer registers and their contents, for selected stack frame.\n\ | |
2989 | Register name as argument means describe only that register.")); | |
2990 | add_info ("all-registers", all_registers_info, _("\ | |
2991 | List of all registers and their contents, for selected stack frame.\n\ | |
2992 | Register name as argument means describe only that register.")); | |
c906108c SS |
2993 | |
2994 | add_info ("program", program_info, | |
1bedd215 | 2995 | _("Execution status of the program.")); |
c906108c SS |
2996 | |
2997 | add_info ("float", float_info, | |
1bedd215 | 2998 | _("Print the status of the floating point unit\n")); |
c906108c | 2999 | |
e76f1f2e | 3000 | add_info ("vector", vector_info, |
1bedd215 | 3001 | _("Print the status of the vector unit\n")); |
c906108c | 3002 | } |