Commit | Line | Data |
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c906108c | 1 | /* Memory-access and commands for "inferior" process, for GDB. |
990a07ab | 2 | |
6aba47ca | 3 | Copyright (C) 1986, 1987, 1988, 1989, 1990, 1991, 1992, 1993, 1994, 1995, |
9b254dd1 DJ |
4 | 1996, 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005, 2006, 2007, |
5 | 2008 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" | |
23 | #include <signal.h> | |
24 | #include "gdb_string.h" | |
25 | #include "symtab.h" | |
26 | #include "gdbtypes.h" | |
27 | #include "frame.h" | |
28 | #include "inferior.h" | |
29 | #include "environ.h" | |
30 | #include "value.h" | |
31 | #include "gdbcmd.h" | |
1adeb98a | 32 | #include "symfile.h" |
c906108c SS |
33 | #include "gdbcore.h" |
34 | #include "target.h" | |
35 | #include "language.h" | |
36 | #include "symfile.h" | |
37 | #include "objfiles.h" | |
c94fdfd0 | 38 | #include "completer.h" |
8b93c638 | 39 | #include "ui-out.h" |
6426a772 | 40 | #include "event-top.h" |
96baa820 | 41 | #include "parser-defs.h" |
36160dc4 | 42 | #include "regcache.h" |
f9418c0f | 43 | #include "reggroups.h" |
fe898f56 | 44 | #include "block.h" |
a77053c2 | 45 | #include "solib.h" |
f9418c0f | 46 | #include <ctype.h> |
92ad9cd9 | 47 | #include "gdb_assert.h" |
281b533b | 48 | #include "observer.h" |
424163ea | 49 | #include "target-descriptions.h" |
ad842144 | 50 | #include "user-regs.h" |
32c1e744 | 51 | #include "exceptions.h" |
700b53b1 | 52 | #include "cli/cli-decode.h" |
a0ef4274 | 53 | #include "gdbthread.h" |
72cec141 | 54 | |
a58dd373 | 55 | /* Functions exported for general use, in inferior.h: */ |
c906108c | 56 | |
a14ed312 | 57 | void all_registers_info (char *, int); |
c906108c | 58 | |
a14ed312 | 59 | void registers_info (char *, int); |
c906108c | 60 | |
a58dd373 EZ |
61 | void nexti_command (char *, int); |
62 | ||
63 | void stepi_command (char *, int); | |
c906108c | 64 | |
a14ed312 | 65 | void continue_command (char *, int); |
c906108c | 66 | |
a58dd373 EZ |
67 | void interrupt_target_command (char *args, int from_tty); |
68 | ||
69 | /* Local functions: */ | |
70 | ||
71 | static void nofp_registers_info (char *, int); | |
72 | ||
c055b101 CV |
73 | static void print_return_value (struct type *func_type, |
74 | struct type *value_type); | |
11cf8741 | 75 | |
a14ed312 | 76 | static void until_next_command (int); |
c906108c | 77 | |
a14ed312 | 78 | static void until_command (char *, int); |
c906108c | 79 | |
a14ed312 | 80 | static void path_info (char *, int); |
c906108c | 81 | |
a14ed312 | 82 | static void path_command (char *, int); |
c906108c | 83 | |
a14ed312 | 84 | static void unset_command (char *, int); |
c906108c | 85 | |
a14ed312 | 86 | static void float_info (char *, int); |
c906108c | 87 | |
a14ed312 | 88 | static void detach_command (char *, int); |
c906108c | 89 | |
6ad8ae5c DJ |
90 | static void disconnect_command (char *, int); |
91 | ||
a14ed312 | 92 | static void unset_environment_command (char *, int); |
c906108c | 93 | |
a14ed312 | 94 | static void set_environment_command (char *, int); |
c906108c | 95 | |
a14ed312 | 96 | static void environment_info (char *, int); |
c906108c | 97 | |
a14ed312 | 98 | static void program_info (char *, int); |
c906108c | 99 | |
a14ed312 | 100 | static void finish_command (char *, int); |
c906108c | 101 | |
a14ed312 | 102 | static void signal_command (char *, int); |
c906108c | 103 | |
a14ed312 | 104 | static void jump_command (char *, int); |
c906108c | 105 | |
a14ed312 | 106 | static void step_1 (int, int, char *); |
611c83ae | 107 | static void step_once (int skip_subroutines, int single_inst, int count, int thread); |
c906108c | 108 | |
a14ed312 | 109 | static void next_command (char *, int); |
c906108c | 110 | |
a14ed312 | 111 | static void step_command (char *, int); |
c906108c | 112 | |
a14ed312 | 113 | static void run_command (char *, int); |
c906108c | 114 | |
a14ed312 | 115 | static void run_no_args_command (char *args, int from_tty); |
392a587b | 116 | |
a14ed312 | 117 | static void go_command (char *line_no, int from_tty); |
392a587b | 118 | |
a14ed312 | 119 | static int strip_bg_char (char **); |
43ff13b4 | 120 | |
a14ed312 | 121 | void _initialize_infcmd (void); |
c906108c SS |
122 | |
123 | #define GO_USAGE "Usage: go <location>\n" | |
124 | ||
c906108c | 125 | #define ERROR_NO_INFERIOR \ |
8a3fe4f8 | 126 | if (!target_has_execution) error (_("The program is not being run.")); |
c906108c SS |
127 | |
128 | /* String containing arguments to give to the program, separated by spaces. | |
129 | Empty string (pointer to '\0') means no args. */ | |
130 | ||
131 | static char *inferior_args; | |
132 | ||
552c04a7 TT |
133 | /* The inferior arguments as a vector. If INFERIOR_ARGC is nonzero, |
134 | then we must compute INFERIOR_ARGS from this (via the target). */ | |
135 | ||
136 | static int inferior_argc; | |
137 | static char **inferior_argv; | |
138 | ||
c906108c SS |
139 | /* File name for default use for standard in/out in the inferior. */ |
140 | ||
3cb3b8df | 141 | static char *inferior_io_terminal; |
c906108c SS |
142 | |
143 | /* Pid of our debugged inferior, or 0 if no inferior now. | |
144 | Since various parts of infrun.c test this to see whether there is a program | |
145 | being debugged it should be nonzero (currently 3 is used) for remote | |
146 | debugging. */ | |
147 | ||
39f77062 | 148 | ptid_t inferior_ptid; |
c906108c SS |
149 | |
150 | /* Last signal that the inferior received (why it stopped). */ | |
151 | ||
152 | enum target_signal stop_signal; | |
153 | ||
154 | /* Address at which inferior stopped. */ | |
155 | ||
156 | CORE_ADDR stop_pc; | |
157 | ||
c906108c SS |
158 | /* Flag indicating that a command has proceeded the inferior past the |
159 | current breakpoint. */ | |
160 | ||
161 | int breakpoint_proceeded; | |
162 | ||
163 | /* Nonzero if stopped due to a step command. */ | |
164 | ||
165 | int stop_step; | |
166 | ||
167 | /* Nonzero if stopped due to completion of a stack dummy routine. */ | |
168 | ||
169 | int stop_stack_dummy; | |
170 | ||
171 | /* Nonzero if stopped due to a random (unexpected) signal in inferior | |
172 | process. */ | |
173 | ||
174 | int stopped_by_random_signal; | |
175 | ||
c906108c SS |
176 | /* If stepping, nonzero means step count is > 1 |
177 | so don't print frame next time inferior stops | |
178 | if it stops due to stepping. */ | |
179 | ||
180 | int step_multi; | |
181 | ||
182 | /* Environment to use for running inferior, | |
183 | in format described in environ.h. */ | |
184 | ||
1bf1958d | 185 | struct gdb_environ *inferior_environ; |
f5871ec0 | 186 | |
8f6a8e84 VP |
187 | /* When set, no calls to target_resumed observer will be made. */ |
188 | int suppress_resume_observer = 0; | |
189 | /* When set, normal_stop will not call the normal_stop observer. */ | |
190 | int suppress_stop_observer = 0; | |
c906108c | 191 | \f |
07091751 FN |
192 | /* Accessor routines. */ |
193 | ||
3cb3b8df BR |
194 | void |
195 | set_inferior_io_terminal (const char *terminal_name) | |
196 | { | |
197 | if (inferior_io_terminal) | |
198 | xfree (inferior_io_terminal); | |
199 | ||
200 | if (!terminal_name) | |
201 | inferior_io_terminal = NULL; | |
202 | else | |
203 | inferior_io_terminal = savestring (terminal_name, strlen (terminal_name)); | |
204 | } | |
205 | ||
206 | const char * | |
207 | get_inferior_io_terminal (void) | |
208 | { | |
209 | return inferior_io_terminal; | |
210 | } | |
211 | ||
07091751 FN |
212 | char * |
213 | get_inferior_args (void) | |
214 | { | |
552c04a7 TT |
215 | if (inferior_argc != 0) |
216 | { | |
217 | char *n, *old; | |
218 | ||
219 | n = gdbarch_construct_inferior_arguments (current_gdbarch, | |
220 | inferior_argc, inferior_argv); | |
221 | old = set_inferior_args (n); | |
222 | xfree (old); | |
223 | } | |
224 | ||
225 | if (inferior_args == NULL) | |
226 | inferior_args = xstrdup (""); | |
227 | ||
07091751 FN |
228 | return inferior_args; |
229 | } | |
230 | ||
231 | char * | |
232 | set_inferior_args (char *newargs) | |
233 | { | |
234 | char *saved_args = inferior_args; | |
235 | ||
236 | inferior_args = newargs; | |
552c04a7 TT |
237 | inferior_argc = 0; |
238 | inferior_argv = 0; | |
07091751 FN |
239 | |
240 | return saved_args; | |
241 | } | |
c5aa993b | 242 | |
552c04a7 TT |
243 | void |
244 | set_inferior_args_vector (int argc, char **argv) | |
245 | { | |
246 | inferior_argc = argc; | |
247 | inferior_argv = argv; | |
248 | } | |
249 | ||
250 | /* Notice when `set args' is run. */ | |
251 | static void | |
252 | notice_args_set (char *args, int from_tty, struct cmd_list_element *c) | |
253 | { | |
254 | inferior_argc = 0; | |
255 | inferior_argv = 0; | |
256 | } | |
257 | ||
258 | /* Notice when `show args' is run. */ | |
259 | static void | |
b4b4ac0b AC |
260 | notice_args_read (struct ui_file *file, int from_tty, |
261 | struct cmd_list_element *c, const char *value) | |
552c04a7 | 262 | { |
258c00cc TT |
263 | /* Note that we ignore the passed-in value in favor of computing it |
264 | directly. */ | |
265 | deprecated_show_value_hack (file, from_tty, c, get_inferior_args ()); | |
552c04a7 TT |
266 | } |
267 | ||
c2a727fa TT |
268 | \f |
269 | /* Compute command-line string given argument vector. This does the | |
270 | same shell processing as fork_inferior. */ | |
c2a727fa TT |
271 | char * |
272 | construct_inferior_arguments (struct gdbarch *gdbarch, int argc, char **argv) | |
273 | { | |
274 | char *result; | |
275 | ||
276 | if (STARTUP_WITH_SHELL) | |
277 | { | |
278 | /* This holds all the characters considered special to the | |
279 | typical Unix shells. We include `^' because the SunOS | |
280 | /bin/sh treats it as a synonym for `|'. */ | |
281 | char *special = "\"!#$&*()\\|[]{}<>?'\"`~^; \t\n"; | |
282 | int i; | |
283 | int length = 0; | |
284 | char *out, *cp; | |
285 | ||
286 | /* We over-compute the size. It shouldn't matter. */ | |
287 | for (i = 0; i < argc; ++i) | |
03c6228e | 288 | length += 2 * strlen (argv[i]) + 1 + 2 * (argv[i][0] == '\0'); |
c2a727fa TT |
289 | |
290 | result = (char *) xmalloc (length); | |
291 | out = result; | |
292 | ||
293 | for (i = 0; i < argc; ++i) | |
294 | { | |
295 | if (i > 0) | |
296 | *out++ = ' '; | |
297 | ||
03c6228e AS |
298 | /* Need to handle empty arguments specially. */ |
299 | if (argv[i][0] == '\0') | |
c2a727fa | 300 | { |
03c6228e AS |
301 | *out++ = '\''; |
302 | *out++ = '\''; | |
303 | } | |
304 | else | |
305 | { | |
306 | for (cp = argv[i]; *cp; ++cp) | |
307 | { | |
308 | if (strchr (special, *cp) != NULL) | |
309 | *out++ = '\\'; | |
310 | *out++ = *cp; | |
311 | } | |
c2a727fa TT |
312 | } |
313 | } | |
314 | *out = '\0'; | |
315 | } | |
316 | else | |
317 | { | |
318 | /* In this case we can't handle arguments that contain spaces, | |
319 | tabs, or newlines -- see breakup_args(). */ | |
320 | int i; | |
321 | int length = 0; | |
322 | ||
323 | for (i = 0; i < argc; ++i) | |
324 | { | |
325 | char *cp = strchr (argv[i], ' '); | |
326 | if (cp == NULL) | |
327 | cp = strchr (argv[i], '\t'); | |
328 | if (cp == NULL) | |
329 | cp = strchr (argv[i], '\n'); | |
330 | if (cp != NULL) | |
8a3fe4f8 | 331 | error (_("can't handle command-line argument containing whitespace")); |
c2a727fa TT |
332 | length += strlen (argv[i]) + 1; |
333 | } | |
334 | ||
335 | result = (char *) xmalloc (length); | |
336 | result[0] = '\0'; | |
337 | for (i = 0; i < argc; ++i) | |
338 | { | |
339 | if (i > 0) | |
340 | strcat (result, " "); | |
341 | strcat (result, argv[i]); | |
342 | } | |
343 | } | |
344 | ||
345 | return result; | |
346 | } | |
552c04a7 TT |
347 | \f |
348 | ||
43ff13b4 JM |
349 | /* This function detects whether or not a '&' character (indicating |
350 | background execution) has been added as *the last* of the arguments ARGS | |
351 | of a command. If it has, it removes it and returns 1. Otherwise it | |
352 | does nothing and returns 0. */ | |
c5aa993b | 353 | static int |
fba45db2 | 354 | strip_bg_char (char **args) |
43ff13b4 JM |
355 | { |
356 | char *p = NULL; | |
c5aa993b | 357 | |
9846de1b | 358 | p = strchr (*args, '&'); |
c5aa993b | 359 | |
9846de1b | 360 | if (p) |
43ff13b4 JM |
361 | { |
362 | if (p == (*args + strlen (*args) - 1)) | |
363 | { | |
c5aa993b | 364 | if (strlen (*args) > 1) |
43ff13b4 JM |
365 | { |
366 | do | |
367 | p--; | |
368 | while (*p == ' ' || *p == '\t'); | |
369 | *(p + 1) = '\0'; | |
370 | } | |
371 | else | |
372 | *args = 0; | |
373 | return 1; | |
374 | } | |
375 | } | |
376 | return 0; | |
377 | } | |
378 | ||
c906108c | 379 | void |
fba45db2 | 380 | tty_command (char *file, int from_tty) |
c906108c SS |
381 | { |
382 | if (file == 0) | |
e2e0b3e5 | 383 | error_no_arg (_("terminal name for running target process")); |
c906108c | 384 | |
3cb3b8df | 385 | set_inferior_io_terminal (file); |
c906108c SS |
386 | } |
387 | ||
281b533b DJ |
388 | /* Common actions to take after creating any sort of inferior, by any |
389 | means (running, attaching, connecting, et cetera). The target | |
390 | should be stopped. */ | |
391 | ||
392 | void | |
393 | post_create_inferior (struct target_ops *target, int from_tty) | |
394 | { | |
b79599ff DP |
395 | /* Be sure we own the terminal in case write operations are performed. */ |
396 | target_terminal_ours (); | |
397 | ||
424163ea DJ |
398 | /* If the target hasn't taken care of this already, do it now. |
399 | Targets which need to access registers during to_open, | |
400 | to_create_inferior, or to_attach should do it earlier; but many | |
401 | don't need to. */ | |
402 | target_find_description (); | |
403 | ||
9353355f DJ |
404 | if (exec_bfd) |
405 | { | |
406 | /* Sometimes the platform-specific hook loads initial shared | |
407 | libraries, and sometimes it doesn't. Try to do so first, so | |
de1b3c3d PA |
408 | that we can add them with the correct value for FROM_TTY. |
409 | If we made all the inferior hook methods consistent, | |
410 | this call could be removed. */ | |
9353355f DJ |
411 | #ifdef SOLIB_ADD |
412 | SOLIB_ADD (NULL, from_tty, target, auto_solib_add); | |
413 | #else | |
414 | solib_add (NULL, from_tty, target, auto_solib_add); | |
415 | #endif | |
416 | ||
417 | /* Create the hooks to handle shared library load and unload | |
418 | events. */ | |
419 | #ifdef SOLIB_CREATE_INFERIOR_HOOK | |
37706b70 | 420 | SOLIB_CREATE_INFERIOR_HOOK (PIDGET (inferior_ptid)); |
9353355f DJ |
421 | #else |
422 | solib_create_inferior_hook (); | |
423 | #endif | |
9353355f DJ |
424 | } |
425 | ||
281b533b DJ |
426 | observer_notify_inferior_created (target, from_tty); |
427 | } | |
428 | ||
a4d5f2e0 JB |
429 | /* Kill the inferior if already running. This function is designed |
430 | to be called when we are about to start the execution of the program | |
431 | from the beginning. Ask the user to confirm that he wants to restart | |
432 | the program being debugged when FROM_TTY is non-null. */ | |
c906108c | 433 | |
8edfe269 | 434 | static void |
a4d5f2e0 JB |
435 | kill_if_already_running (int from_tty) |
436 | { | |
39f77062 | 437 | if (! ptid_equal (inferior_ptid, null_ptid) && target_has_execution) |
c906108c | 438 | { |
8edfe269 DJ |
439 | /* Bail out before killing the program if we will not be able to |
440 | restart it. */ | |
441 | target_require_runnable (); | |
442 | ||
adf40b2e JM |
443 | if (from_tty |
444 | && !query ("The program being debugged has been started already.\n\ | |
c906108c | 445 | Start it from the beginning? ")) |
8a3fe4f8 | 446 | error (_("Program not restarted.")); |
c906108c | 447 | target_kill (); |
e85a822c | 448 | no_shared_libraries (NULL, from_tty); |
c906108c SS |
449 | init_wait_for_inferior (); |
450 | } | |
a4d5f2e0 JB |
451 | } |
452 | ||
f67a969f JB |
453 | /* Implement the "run" command. If TBREAK_AT_MAIN is set, then insert |
454 | a temporary breakpoint at the begining of the main program before | |
455 | running the program. */ | |
456 | ||
a4d5f2e0 | 457 | static void |
f67a969f | 458 | run_command_1 (char *args, int from_tty, int tbreak_at_main) |
a4d5f2e0 JB |
459 | { |
460 | char *exec_file; | |
c906108c | 461 | |
a4d5f2e0 JB |
462 | dont_repeat (); |
463 | ||
464 | kill_if_already_running (from_tty); | |
c906108c SS |
465 | clear_breakpoint_hit_counts (); |
466 | ||
fd79ecee DJ |
467 | /* Clean up any leftovers from other runs. Some other things from |
468 | this function should probably be moved into target_pre_inferior. */ | |
469 | target_pre_inferior (from_tty); | |
470 | ||
39ad761d JB |
471 | /* The comment here used to read, "The exec file is re-read every |
472 | time we do a generic_mourn_inferior, so we just have to worry | |
473 | about the symbol file." The `generic_mourn_inferior' function | |
474 | gets called whenever the program exits. However, suppose the | |
475 | program exits, and *then* the executable file changes? We need | |
476 | to check again here. Since reopen_exec_file doesn't do anything | |
477 | if the timestamp hasn't changed, I don't see the harm. */ | |
478 | reopen_exec_file (); | |
c906108c SS |
479 | reread_symbols (); |
480 | ||
f67a969f JB |
481 | /* Insert the temporary breakpoint if a location was specified. */ |
482 | if (tbreak_at_main) | |
483 | tbreak_command (main_name (), 0); | |
484 | ||
39ad761d JB |
485 | exec_file = (char *) get_exec_file (0); |
486 | ||
9908b566 VP |
487 | if (non_stop && !target_supports_non_stop ()) |
488 | error (_("The target does not support running in non-stop mode.")); | |
489 | ||
c906108c SS |
490 | /* We keep symbols from add-symbol-file, on the grounds that the |
491 | user might want to add some symbols before running the program | |
492 | (right?). But sometimes (dynamic loading where the user manually | |
493 | introduces the new symbols with add-symbol-file), the code which | |
494 | the symbols describe does not persist between runs. Currently | |
495 | the user has to manually nuke all symbols between runs if they | |
496 | want them to go away (PR 2207). This is probably reasonable. */ | |
497 | ||
43ff13b4 | 498 | if (!args) |
6426a772 | 499 | { |
362646f5 | 500 | if (target_can_async_p ()) |
6426a772 JM |
501 | async_disable_stdin (); |
502 | } | |
43ff13b4 | 503 | else |
c906108c | 504 | { |
43ff13b4 JM |
505 | int async_exec = strip_bg_char (&args); |
506 | ||
507 | /* If we get a request for running in the bg but the target | |
508 | doesn't support it, error out. */ | |
362646f5 | 509 | if (async_exec && !target_can_async_p ()) |
8a3fe4f8 | 510 | error (_("Asynchronous execution not supported on this target.")); |
43ff13b4 JM |
511 | |
512 | /* If we don't get a request of running in the bg, then we need | |
c5aa993b | 513 | to simulate synchronous (fg) execution. */ |
362646f5 | 514 | if (!async_exec && target_can_async_p ()) |
43ff13b4 JM |
515 | { |
516 | /* Simulate synchronous execution */ | |
6426a772 | 517 | async_disable_stdin (); |
43ff13b4 JM |
518 | } |
519 | ||
520 | /* If there were other args, beside '&', process them. */ | |
521 | if (args) | |
522 | { | |
07091751 FN |
523 | char *old_args = set_inferior_args (xstrdup (args)); |
524 | xfree (old_args); | |
43ff13b4 | 525 | } |
c906108c SS |
526 | } |
527 | ||
528 | if (from_tty) | |
529 | { | |
8b93c638 JM |
530 | ui_out_field_string (uiout, NULL, "Starting program"); |
531 | ui_out_text (uiout, ": "); | |
532 | if (exec_file) | |
533 | ui_out_field_string (uiout, "execfile", exec_file); | |
534 | ui_out_spaces (uiout, 1); | |
552c04a7 TT |
535 | /* We call get_inferior_args() because we might need to compute |
536 | the value now. */ | |
537 | ui_out_field_string (uiout, "infargs", get_inferior_args ()); | |
8b93c638 JM |
538 | ui_out_text (uiout, "\n"); |
539 | ui_out_flush (uiout); | |
c906108c SS |
540 | } |
541 | ||
552c04a7 TT |
542 | /* We call get_inferior_args() because we might need to compute |
543 | the value now. */ | |
544 | target_create_inferior (exec_file, get_inferior_args (), | |
c27cda74 | 545 | environ_vector (inferior_environ), from_tty); |
281b533b | 546 | |
de1b3c3d PA |
547 | /* Pass zero for FROM_TTY, because at this point the "run" command |
548 | has done its thing; now we are setting up the running program. */ | |
549 | post_create_inferior (¤t_target, 0); | |
281b533b DJ |
550 | |
551 | /* Start the target running. */ | |
552 | proceed ((CORE_ADDR) -1, TARGET_SIGNAL_0, 0); | |
c906108c SS |
553 | } |
554 | ||
555 | ||
f67a969f JB |
556 | static void |
557 | run_command (char *args, int from_tty) | |
558 | { | |
559 | run_command_1 (args, from_tty, 0); | |
560 | } | |
561 | ||
c906108c | 562 | static void |
fba45db2 | 563 | run_no_args_command (char *args, int from_tty) |
c906108c | 564 | { |
07091751 FN |
565 | char *old_args = set_inferior_args (xstrdup ("")); |
566 | xfree (old_args); | |
c906108c | 567 | } |
c906108c | 568 | \f |
c5aa993b | 569 | |
a4d5f2e0 JB |
570 | /* Start the execution of the program up until the beginning of the main |
571 | program. */ | |
572 | ||
573 | static void | |
574 | start_command (char *args, int from_tty) | |
575 | { | |
576 | /* Some languages such as Ada need to search inside the program | |
577 | minimal symbols for the location where to put the temporary | |
578 | breakpoint before starting. */ | |
579 | if (!have_minimal_symbols ()) | |
8a3fe4f8 | 580 | error (_("No symbol table loaded. Use the \"file\" command.")); |
a4d5f2e0 | 581 | |
f67a969f JB |
582 | /* Run the program until reaching the main procedure... */ |
583 | run_command_1 (args, from_tty, 1); | |
a4d5f2e0 JB |
584 | } |
585 | ||
8cae4b3f PA |
586 | static int |
587 | proceed_thread_callback (struct thread_info *thread, void *arg) | |
588 | { | |
4f8d22e3 | 589 | if (!is_stopped (thread->ptid)) |
8cae4b3f PA |
590 | return 0; |
591 | ||
592 | context_switch_to (thread->ptid); | |
593 | clear_proceed_status (); | |
594 | proceed ((CORE_ADDR) -1, TARGET_SIGNAL_DEFAULT, 0); | |
595 | return 0; | |
596 | } | |
597 | ||
77ebaa5a VP |
598 | void |
599 | continue_1 (int all_threads) | |
600 | { | |
3d488bfc PA |
601 | ERROR_NO_INFERIOR; |
602 | ||
77ebaa5a VP |
603 | if (non_stop && all_threads) |
604 | { | |
605 | /* Don't error out if the current thread is running, because | |
606 | there may be other stopped threads. */ | |
607 | struct cleanup *old_chain; | |
608 | ||
609 | /* Backup current thread and selected frame. */ | |
610 | old_chain = make_cleanup_restore_current_thread (); | |
611 | ||
612 | iterate_over_threads (proceed_thread_callback, NULL); | |
613 | ||
614 | /* Restore selected ptid. */ | |
615 | do_cleanups (old_chain); | |
616 | } | |
617 | else | |
618 | { | |
619 | ensure_not_running (); | |
620 | clear_proceed_status (); | |
621 | proceed ((CORE_ADDR) -1, TARGET_SIGNAL_DEFAULT, 0); | |
622 | } | |
623 | } | |
624 | ||
8cae4b3f | 625 | /* continue [-a] [proceed-count] [&] */ |
c906108c | 626 | void |
8cae4b3f | 627 | continue_command (char *args, int from_tty) |
c906108c | 628 | { |
c5aa993b | 629 | int async_exec = 0; |
8cae4b3f | 630 | int all_threads = 0; |
c906108c SS |
631 | ERROR_NO_INFERIOR; |
632 | ||
43ff13b4 | 633 | /* Find out whether we must run in the background. */ |
8cae4b3f PA |
634 | if (args != NULL) |
635 | async_exec = strip_bg_char (&args); | |
43ff13b4 JM |
636 | |
637 | /* If we must run in the background, but the target can't do it, | |
638 | error out. */ | |
362646f5 | 639 | if (async_exec && !target_can_async_p ()) |
8a3fe4f8 | 640 | error (_("Asynchronous execution not supported on this target.")); |
43ff13b4 JM |
641 | |
642 | /* If we are not asked to run in the bg, then prepare to run in the | |
643 | foreground, synchronously. */ | |
362646f5 | 644 | if (!async_exec && target_can_async_p ()) |
c5aa993b | 645 | { |
43ff13b4 | 646 | /* Simulate synchronous execution */ |
6426a772 | 647 | async_disable_stdin (); |
43ff13b4 | 648 | } |
c906108c | 649 | |
8cae4b3f PA |
650 | if (args != NULL) |
651 | { | |
652 | if (strncmp (args, "-a", sizeof ("-a") - 1) == 0) | |
653 | { | |
654 | all_threads = 1; | |
655 | args += sizeof ("-a") - 1; | |
656 | if (*args == '\0') | |
657 | args = NULL; | |
658 | } | |
659 | } | |
660 | ||
661 | if (!non_stop && all_threads) | |
662 | error (_("`-a' is meaningless in all-stop mode.")); | |
663 | ||
664 | if (args != NULL && all_threads) | |
665 | error (_("\ | |
666 | Can't resume all threads and specify proceed count simultaneously.")); | |
667 | ||
668 | /* If we have an argument left, set proceed count of breakpoint we | |
669 | stopped at. */ | |
670 | if (args != NULL) | |
c906108c | 671 | { |
347bddb7 | 672 | bpstat bs = NULL; |
8671a17b PA |
673 | int num, stat; |
674 | int stopped = 0; | |
347bddb7 PA |
675 | struct thread_info *tp; |
676 | ||
677 | if (non_stop) | |
678 | tp = find_thread_pid (inferior_ptid); | |
679 | else | |
680 | { | |
681 | ptid_t last_ptid; | |
682 | struct target_waitstatus ws; | |
683 | ||
684 | get_last_target_status (&last_ptid, &ws); | |
685 | tp = find_thread_pid (last_ptid); | |
686 | } | |
687 | if (tp != NULL) | |
688 | bs = tp->stop_bpstat; | |
8671a17b PA |
689 | |
690 | while ((stat = bpstat_num (&bs, &num)) != 0) | |
691 | if (stat > 0) | |
692 | { | |
693 | set_ignore_count (num, | |
8cae4b3f | 694 | parse_and_eval_long (args) - 1, |
8671a17b PA |
695 | from_tty); |
696 | /* set_ignore_count prints a message ending with a period. | |
697 | So print two spaces before "Continuing.". */ | |
698 | if (from_tty) | |
699 | printf_filtered (" "); | |
700 | stopped = 1; | |
701 | } | |
702 | ||
703 | if (!stopped && from_tty) | |
c906108c SS |
704 | { |
705 | printf_filtered | |
706 | ("Not stopped at any breakpoint; argument ignored.\n"); | |
707 | } | |
c906108c SS |
708 | } |
709 | ||
710 | if (from_tty) | |
a3f17187 | 711 | printf_filtered (_("Continuing.\n")); |
c906108c | 712 | |
77ebaa5a | 713 | continue_1 (all_threads); |
c906108c SS |
714 | } |
715 | \f | |
716 | /* Step until outside of current statement. */ | |
717 | ||
c906108c | 718 | static void |
fba45db2 | 719 | step_command (char *count_string, int from_tty) |
c906108c SS |
720 | { |
721 | step_1 (0, 0, count_string); | |
722 | } | |
723 | ||
724 | /* Likewise, but skip over subroutine calls as if single instructions. */ | |
725 | ||
c906108c | 726 | static void |
fba45db2 | 727 | next_command (char *count_string, int from_tty) |
c906108c SS |
728 | { |
729 | step_1 (1, 0, count_string); | |
730 | } | |
731 | ||
732 | /* Likewise, but step only one instruction. */ | |
733 | ||
c906108c | 734 | void |
fba45db2 | 735 | stepi_command (char *count_string, int from_tty) |
c906108c SS |
736 | { |
737 | step_1 (0, 1, count_string); | |
738 | } | |
739 | ||
c906108c | 740 | void |
fba45db2 | 741 | nexti_command (char *count_string, int from_tty) |
c906108c SS |
742 | { |
743 | step_1 (1, 1, count_string); | |
744 | } | |
745 | ||
74b7792f | 746 | static void |
611c83ae | 747 | delete_longjmp_breakpoint_cleanup (void *arg) |
74b7792f | 748 | { |
611c83ae PA |
749 | int thread = * (int *) arg; |
750 | delete_longjmp_breakpoint (thread); | |
74b7792f AC |
751 | } |
752 | ||
c906108c | 753 | static void |
fba45db2 | 754 | step_1 (int skip_subroutines, int single_inst, char *count_string) |
c906108c | 755 | { |
52f0bd74 | 756 | int count = 1; |
c906108c | 757 | struct frame_info *frame; |
f107f563 | 758 | struct cleanup *cleanups = make_cleanup (null_cleanup, NULL); |
43ff13b4 | 759 | int async_exec = 0; |
b3dc826b | 760 | int thread = -1; |
c5aa993b | 761 | |
c906108c | 762 | ERROR_NO_INFERIOR; |
94cc34af | 763 | ensure_not_running (); |
43ff13b4 JM |
764 | |
765 | if (count_string) | |
766 | async_exec = strip_bg_char (&count_string); | |
c5aa993b | 767 | |
43ff13b4 JM |
768 | /* If we get a request for running in the bg but the target |
769 | doesn't support it, error out. */ | |
362646f5 | 770 | if (async_exec && !target_can_async_p ()) |
8a3fe4f8 | 771 | error (_("Asynchronous execution not supported on this target.")); |
43ff13b4 JM |
772 | |
773 | /* If we don't get a request of running in the bg, then we need | |
774 | to simulate synchronous (fg) execution. */ | |
362646f5 | 775 | if (!async_exec && target_can_async_p ()) |
43ff13b4 JM |
776 | { |
777 | /* Simulate synchronous execution */ | |
6426a772 | 778 | async_disable_stdin (); |
43ff13b4 JM |
779 | } |
780 | ||
bb518678 | 781 | count = count_string ? parse_and_eval_long (count_string) : 1; |
c906108c | 782 | |
c5aa993b | 783 | if (!single_inst || skip_subroutines) /* leave si command alone */ |
c906108c | 784 | { |
611c83ae | 785 | if (in_thread_list (inferior_ptid)) |
b3dc826b | 786 | thread = pid_to_thread_id (inferior_ptid); |
611c83ae PA |
787 | |
788 | set_longjmp_breakpoint (); | |
789 | ||
b3dc826b | 790 | make_cleanup (delete_longjmp_breakpoint_cleanup, &thread); |
c2d11a7d JM |
791 | } |
792 | ||
793 | /* In synchronous case, all is well, just use the regular for loop. */ | |
362646f5 | 794 | if (!target_can_async_p ()) |
c2d11a7d JM |
795 | { |
796 | for (; count > 0; count--) | |
797 | { | |
4e1c45ea | 798 | struct thread_info *tp = inferior_thread (); |
c2d11a7d JM |
799 | clear_proceed_status (); |
800 | ||
801 | frame = get_current_frame (); | |
4e1c45ea | 802 | tp->step_frame_id = get_frame_id (frame); |
c2d11a7d JM |
803 | |
804 | if (!single_inst) | |
805 | { | |
4e1c45ea PA |
806 | find_pc_line_pc_range (stop_pc, |
807 | &tp->step_range_start, &tp->step_range_end); | |
808 | if (tp->step_range_end == 0) | |
c2d11a7d JM |
809 | { |
810 | char *name; | |
4e1c45ea PA |
811 | if (find_pc_partial_function (stop_pc, &name, |
812 | &tp->step_range_start, | |
813 | &tp->step_range_end) == 0) | |
8a3fe4f8 | 814 | error (_("Cannot find bounds of current function")); |
c2d11a7d JM |
815 | |
816 | target_terminal_ours (); | |
a3f17187 | 817 | printf_filtered (_("\ |
c2d11a7d | 818 | Single stepping until exit from function %s, \n\ |
a3f17187 | 819 | which has no line number information.\n"), name); |
c2d11a7d JM |
820 | } |
821 | } | |
822 | else | |
823 | { | |
824 | /* Say we are stepping, but stop after one insn whatever it does. */ | |
4e1c45ea | 825 | tp->step_range_start = tp->step_range_end = 1; |
c2d11a7d JM |
826 | if (!skip_subroutines) |
827 | /* It is stepi. | |
828 | Don't step over function calls, not even to functions lacking | |
829 | line numbers. */ | |
078130d0 | 830 | tp->step_over_calls = STEP_OVER_NONE; |
c2d11a7d JM |
831 | } |
832 | ||
833 | if (skip_subroutines) | |
078130d0 | 834 | tp->step_over_calls = STEP_OVER_ALL; |
c2d11a7d JM |
835 | |
836 | step_multi = (count > 1); | |
837 | proceed ((CORE_ADDR) -1, TARGET_SIGNAL_DEFAULT, 1); | |
838 | ||
839 | if (!stop_step) | |
840 | break; | |
c2d11a7d JM |
841 | } |
842 | ||
f107f563 | 843 | do_cleanups (cleanups); |
c2d11a7d JM |
844 | return; |
845 | } | |
846 | /* In case of asynchronous target things get complicated, do only | |
847 | one step for now, before returning control to the event loop. Let | |
848 | the continuation figure out how many other steps we need to do, | |
849 | and handle them one at the time, through step_once(). */ | |
850 | else | |
851 | { | |
b3dc826b | 852 | step_once (skip_subroutines, single_inst, count, thread); |
611c83ae | 853 | /* We are running, and the continuation is installed. It will |
f107f563 VP |
854 | disable the longjmp breakpoint as appropriate. */ |
855 | discard_cleanups (cleanups); | |
c906108c | 856 | } |
c2d11a7d | 857 | } |
c906108c | 858 | |
bfec99b2 PA |
859 | struct step_1_continuation_args |
860 | { | |
861 | int count; | |
862 | int skip_subroutines; | |
863 | int single_inst; | |
864 | int thread; | |
865 | }; | |
866 | ||
c2d11a7d JM |
867 | /* Called after we are done with one step operation, to check whether |
868 | we need to step again, before we print the prompt and return control | |
869 | to the user. If count is > 1, we will need to do one more call to | |
870 | proceed(), via step_once(). Basically it is like step_once and | |
871 | step_1_continuation are co-recursive. */ | |
872 | static void | |
604ead4a | 873 | step_1_continuation (void *args) |
c2d11a7d | 874 | { |
bfec99b2 | 875 | struct step_1_continuation_args *a = args; |
f13468d9 | 876 | |
604ead4a | 877 | if (!step_multi || !stop_step) |
f13468d9 | 878 | { |
604ead4a PA |
879 | /* If we stopped for some reason that is not stepping there are |
880 | no further steps to make. Cleanup. */ | |
bfec99b2 PA |
881 | if (!a->single_inst || a->skip_subroutines) |
882 | delete_longjmp_breakpoint (a->thread); | |
f13468d9 | 883 | step_multi = 0; |
f107f563 | 884 | } |
f13468d9 | 885 | else |
bfec99b2 | 886 | step_once (a->skip_subroutines, a->single_inst, a->count - 1, a->thread); |
c2d11a7d JM |
887 | } |
888 | ||
889 | /* Do just one step operation. If count >1 we will have to set up a | |
890 | continuation to be done after the target stops (after this one | |
891 | step). This is useful to implement the 'step n' kind of commands, in | |
892 | case of asynchronous targets. We had to split step_1 into two parts, | |
893 | one to be done before proceed() and one afterwards. This function is | |
894 | called in case of step n with n>1, after the first step operation has | |
895 | been completed.*/ | |
896 | static void | |
611c83ae | 897 | step_once (int skip_subroutines, int single_inst, int count, int thread) |
bfec99b2 | 898 | { |
0d06e24b | 899 | struct frame_info *frame; |
bfec99b2 | 900 | struct step_1_continuation_args *args; |
c2d11a7d JM |
901 | |
902 | if (count > 0) | |
c906108c | 903 | { |
4e1c45ea PA |
904 | /* Don't assume THREAD is a valid thread id. It is set to -1 if |
905 | the longjmp breakpoint was not required. Use the | |
906 | INFERIOR_PTID thread instead, which is the same thread when | |
907 | THREAD is set. */ | |
908 | struct thread_info *tp = inferior_thread (); | |
c906108c SS |
909 | clear_proceed_status (); |
910 | ||
911 | frame = get_current_frame (); | |
c5aa993b | 912 | if (!frame) /* Avoid coredump here. Why tho? */ |
8a3fe4f8 | 913 | error (_("No current frame")); |
4e1c45ea | 914 | tp->step_frame_id = get_frame_id (frame); |
c906108c | 915 | |
c5aa993b | 916 | if (!single_inst) |
c906108c | 917 | { |
4e1c45ea PA |
918 | find_pc_line_pc_range (stop_pc, |
919 | &tp->step_range_start, &tp->step_range_end); | |
5fbbeb29 CF |
920 | |
921 | /* If we have no line info, switch to stepi mode. */ | |
4e1c45ea | 922 | if (tp->step_range_end == 0 && step_stop_if_no_debug) |
5fbbeb29 | 923 | { |
4e1c45ea | 924 | tp->step_range_start = tp->step_range_end = 1; |
5fbbeb29 | 925 | } |
4e1c45ea | 926 | else if (tp->step_range_end == 0) |
c906108c SS |
927 | { |
928 | char *name; | |
4e1c45ea PA |
929 | if (find_pc_partial_function (stop_pc, &name, |
930 | &tp->step_range_start, | |
931 | &tp->step_range_end) == 0) | |
8a3fe4f8 | 932 | error (_("Cannot find bounds of current function")); |
c906108c SS |
933 | |
934 | target_terminal_ours (); | |
a3f17187 | 935 | printf_filtered (_("\ |
c906108c | 936 | Single stepping until exit from function %s, \n\ |
a3f17187 | 937 | which has no line number information.\n"), name); |
c906108c SS |
938 | } |
939 | } | |
940 | else | |
941 | { | |
942 | /* Say we are stepping, but stop after one insn whatever it does. */ | |
4e1c45ea | 943 | tp->step_range_start = tp->step_range_end = 1; |
c906108c SS |
944 | if (!skip_subroutines) |
945 | /* It is stepi. | |
946 | Don't step over function calls, not even to functions lacking | |
947 | line numbers. */ | |
078130d0 | 948 | tp->step_over_calls = STEP_OVER_NONE; |
c906108c SS |
949 | } |
950 | ||
951 | if (skip_subroutines) | |
078130d0 | 952 | tp->step_over_calls = STEP_OVER_ALL; |
c906108c SS |
953 | |
954 | step_multi = (count > 1); | |
f107f563 | 955 | proceed ((CORE_ADDR) -1, TARGET_SIGNAL_DEFAULT, 1); |
bfec99b2 PA |
956 | |
957 | args = xmalloc (sizeof (*args)); | |
958 | args->skip_subroutines = skip_subroutines; | |
959 | args->single_inst = single_inst; | |
960 | args->count = count; | |
961 | args->thread = thread; | |
604ead4a | 962 | add_intermediate_continuation (step_1_continuation, args, xfree); |
c906108c | 963 | } |
c906108c | 964 | } |
c2d11a7d | 965 | |
c906108c SS |
966 | \f |
967 | /* Continue program at specified address. */ | |
968 | ||
969 | static void | |
fba45db2 | 970 | jump_command (char *arg, int from_tty) |
c906108c | 971 | { |
52f0bd74 | 972 | CORE_ADDR addr; |
c906108c SS |
973 | struct symtabs_and_lines sals; |
974 | struct symtab_and_line sal; | |
975 | struct symbol *fn; | |
976 | struct symbol *sfn; | |
43ff13b4 | 977 | int async_exec = 0; |
c5aa993b | 978 | |
c906108c | 979 | ERROR_NO_INFERIOR; |
94cc34af | 980 | ensure_not_running (); |
c906108c | 981 | |
43ff13b4 JM |
982 | /* Find out whether we must run in the background. */ |
983 | if (arg != NULL) | |
984 | async_exec = strip_bg_char (&arg); | |
985 | ||
986 | /* If we must run in the background, but the target can't do it, | |
987 | error out. */ | |
362646f5 | 988 | if (async_exec && !target_can_async_p ()) |
8a3fe4f8 | 989 | error (_("Asynchronous execution not supported on this target.")); |
43ff13b4 | 990 | |
c906108c | 991 | if (!arg) |
e2e0b3e5 | 992 | error_no_arg (_("starting address")); |
c906108c SS |
993 | |
994 | sals = decode_line_spec_1 (arg, 1); | |
995 | if (sals.nelts != 1) | |
996 | { | |
8a3fe4f8 | 997 | error (_("Unreasonable jump request")); |
c906108c SS |
998 | } |
999 | ||
1000 | sal = sals.sals[0]; | |
b8c9b27d | 1001 | xfree (sals.sals); |
c906108c SS |
1002 | |
1003 | if (sal.symtab == 0 && sal.pc == 0) | |
8a3fe4f8 | 1004 | error (_("No source file has been specified.")); |
c906108c | 1005 | |
c5aa993b | 1006 | resolve_sal_pc (&sal); /* May error out */ |
c906108c SS |
1007 | |
1008 | /* See if we are trying to jump to another function. */ | |
1009 | fn = get_frame_function (get_current_frame ()); | |
1010 | sfn = find_pc_function (sal.pc); | |
1011 | if (fn != NULL && sfn != fn) | |
1012 | { | |
1013 | if (!query ("Line %d is not in `%s'. Jump anyway? ", sal.line, | |
de5ad195 | 1014 | SYMBOL_PRINT_NAME (fn))) |
c906108c | 1015 | { |
8a3fe4f8 | 1016 | error (_("Not confirmed.")); |
c906108c SS |
1017 | /* NOTREACHED */ |
1018 | } | |
1019 | } | |
1020 | ||
c5aa993b | 1021 | if (sfn != NULL) |
c906108c SS |
1022 | { |
1023 | fixup_symbol_section (sfn, 0); | |
714835d5 UW |
1024 | if (section_is_overlay (SYMBOL_OBJ_SECTION (sfn)) && |
1025 | !section_is_mapped (SYMBOL_OBJ_SECTION (sfn))) | |
c906108c SS |
1026 | { |
1027 | if (!query ("WARNING!!! Destination is in unmapped overlay! Jump anyway? ")) | |
1028 | { | |
8a3fe4f8 | 1029 | error (_("Not confirmed.")); |
c906108c SS |
1030 | /* NOTREACHED */ |
1031 | } | |
1032 | } | |
1033 | } | |
1034 | ||
c906108c SS |
1035 | addr = sal.pc; |
1036 | ||
1037 | if (from_tty) | |
1038 | { | |
a3f17187 | 1039 | printf_filtered (_("Continuing at ")); |
ed49a04f | 1040 | fputs_filtered (paddress (addr), gdb_stdout); |
c906108c SS |
1041 | printf_filtered (".\n"); |
1042 | } | |
1043 | ||
89113898 PA |
1044 | /* If we are not asked to run in the bg, then prepare to run in the |
1045 | foreground, synchronously. */ | |
1046 | if (!async_exec && target_can_async_p ()) | |
1047 | { | |
1048 | /* Simulate synchronous execution */ | |
1049 | async_disable_stdin (); | |
1050 | } | |
1051 | ||
c906108c SS |
1052 | clear_proceed_status (); |
1053 | proceed (addr, TARGET_SIGNAL_0, 0); | |
1054 | } | |
c906108c | 1055 | \f |
c5aa993b | 1056 | |
c906108c SS |
1057 | /* Go to line or address in current procedure */ |
1058 | static void | |
fba45db2 | 1059 | go_command (char *line_no, int from_tty) |
c906108c | 1060 | { |
c5aa993b | 1061 | if (line_no == (char *) NULL || !*line_no) |
b83266a0 | 1062 | printf_filtered (GO_USAGE); |
c906108c SS |
1063 | else |
1064 | { | |
b83266a0 SS |
1065 | tbreak_command (line_no, from_tty); |
1066 | jump_command (line_no, from_tty); | |
c906108c SS |
1067 | } |
1068 | } | |
c906108c | 1069 | \f |
c5aa993b | 1070 | |
c906108c SS |
1071 | /* Continue program giving it specified signal. */ |
1072 | ||
1073 | static void | |
fba45db2 | 1074 | signal_command (char *signum_exp, int from_tty) |
c906108c SS |
1075 | { |
1076 | enum target_signal oursig; | |
32c1e744 | 1077 | int async_exec = 0; |
c906108c SS |
1078 | |
1079 | dont_repeat (); /* Too dangerous. */ | |
1080 | ERROR_NO_INFERIOR; | |
94cc34af | 1081 | ensure_not_running (); |
c906108c | 1082 | |
32c1e744 VP |
1083 | /* Find out whether we must run in the background. */ |
1084 | if (signum_exp != NULL) | |
1085 | async_exec = strip_bg_char (&signum_exp); | |
1086 | ||
1087 | /* If we must run in the background, but the target can't do it, | |
1088 | error out. */ | |
1089 | if (async_exec && !target_can_async_p ()) | |
1090 | error (_("Asynchronous execution not supported on this target.")); | |
1091 | ||
1092 | /* If we are not asked to run in the bg, then prepare to run in the | |
1093 | foreground, synchronously. */ | |
1094 | if (!async_exec && target_can_async_p ()) | |
1095 | { | |
1096 | /* Simulate synchronous execution. */ | |
1097 | async_disable_stdin (); | |
1098 | } | |
1099 | ||
c906108c | 1100 | if (!signum_exp) |
e2e0b3e5 | 1101 | error_no_arg (_("signal number")); |
c906108c SS |
1102 | |
1103 | /* It would be even slicker to make signal names be valid expressions, | |
1104 | (the type could be "enum $signal" or some such), then the user could | |
1105 | assign them to convenience variables. */ | |
1106 | oursig = target_signal_from_name (signum_exp); | |
1107 | ||
1108 | if (oursig == TARGET_SIGNAL_UNKNOWN) | |
1109 | { | |
1110 | /* No, try numeric. */ | |
bb518678 | 1111 | int num = parse_and_eval_long (signum_exp); |
c906108c SS |
1112 | |
1113 | if (num == 0) | |
1114 | oursig = TARGET_SIGNAL_0; | |
1115 | else | |
1116 | oursig = target_signal_from_command (num); | |
1117 | } | |
1118 | ||
1119 | if (from_tty) | |
1120 | { | |
1121 | if (oursig == TARGET_SIGNAL_0) | |
a3f17187 | 1122 | printf_filtered (_("Continuing with no signal.\n")); |
c906108c | 1123 | else |
a3f17187 | 1124 | printf_filtered (_("Continuing with signal %s.\n"), |
c906108c SS |
1125 | target_signal_to_name (oursig)); |
1126 | } | |
1127 | ||
1128 | clear_proceed_status (); | |
1129 | /* "signal 0" should not get stuck if we are stopped at a breakpoint. | |
1130 | FIXME: Neither should "signal foo" but when I tried passing | |
1131 | (CORE_ADDR)-1 unconditionally I got a testsuite failure which I haven't | |
1132 | tried to track down yet. */ | |
2acceee2 | 1133 | proceed (oursig == TARGET_SIGNAL_0 ? (CORE_ADDR) -1 : stop_pc, oursig, 0); |
c906108c SS |
1134 | } |
1135 | ||
c906108c SS |
1136 | /* Proceed until we reach a different source line with pc greater than |
1137 | our current one or exit the function. We skip calls in both cases. | |
1138 | ||
1139 | Note that eventually this command should probably be changed so | |
1140 | that only source lines are printed out when we hit the breakpoint | |
1141 | we set. This may involve changes to wait_for_inferior and the | |
1142 | proceed status code. */ | |
1143 | ||
c906108c | 1144 | static void |
fba45db2 | 1145 | until_next_command (int from_tty) |
c906108c SS |
1146 | { |
1147 | struct frame_info *frame; | |
1148 | CORE_ADDR pc; | |
1149 | struct symbol *func; | |
1150 | struct symtab_and_line sal; | |
4e1c45ea | 1151 | struct thread_info *tp = inferior_thread (); |
c5aa993b | 1152 | |
c906108c SS |
1153 | clear_proceed_status (); |
1154 | ||
1155 | frame = get_current_frame (); | |
1156 | ||
1157 | /* Step until either exited from this function or greater | |
1158 | than the current line (if in symbolic section) or pc (if | |
1159 | not). */ | |
1160 | ||
1161 | pc = read_pc (); | |
1162 | func = find_pc_function (pc); | |
c5aa993b | 1163 | |
c906108c SS |
1164 | if (!func) |
1165 | { | |
1166 | struct minimal_symbol *msymbol = lookup_minimal_symbol_by_pc (pc); | |
c5aa993b | 1167 | |
c906108c | 1168 | if (msymbol == NULL) |
8a3fe4f8 | 1169 | error (_("Execution is not within a known function.")); |
c5aa993b | 1170 | |
4e1c45ea PA |
1171 | tp->step_range_start = SYMBOL_VALUE_ADDRESS (msymbol); |
1172 | tp->step_range_end = pc; | |
c906108c SS |
1173 | } |
1174 | else | |
1175 | { | |
1176 | sal = find_pc_line (pc, 0); | |
c5aa993b | 1177 | |
4e1c45ea PA |
1178 | tp->step_range_start = BLOCK_START (SYMBOL_BLOCK_VALUE (func)); |
1179 | tp->step_range_end = sal.end; | |
c906108c | 1180 | } |
c5aa993b | 1181 | |
078130d0 | 1182 | tp->step_over_calls = STEP_OVER_ALL; |
4e1c45ea | 1183 | tp->step_frame_id = get_frame_id (frame); |
c906108c SS |
1184 | |
1185 | step_multi = 0; /* Only one call to proceed */ | |
c5aa993b | 1186 | |
2acceee2 | 1187 | proceed ((CORE_ADDR) -1, TARGET_SIGNAL_DEFAULT, 1); |
c906108c SS |
1188 | } |
1189 | ||
c5aa993b | 1190 | static void |
fba45db2 | 1191 | until_command (char *arg, int from_tty) |
c906108c | 1192 | { |
43ff13b4 JM |
1193 | int async_exec = 0; |
1194 | ||
c906108c | 1195 | if (!target_has_execution) |
8a3fe4f8 | 1196 | error (_("The program is not running.")); |
43ff13b4 JM |
1197 | |
1198 | /* Find out whether we must run in the background. */ | |
1199 | if (arg != NULL) | |
1200 | async_exec = strip_bg_char (&arg); | |
1201 | ||
1202 | /* If we must run in the background, but the target can't do it, | |
1203 | error out. */ | |
362646f5 | 1204 | if (async_exec && !target_can_async_p ()) |
8a3fe4f8 | 1205 | error (_("Asynchronous execution not supported on this target.")); |
43ff13b4 JM |
1206 | |
1207 | /* If we are not asked to run in the bg, then prepare to run in the | |
1208 | foreground, synchronously. */ | |
362646f5 | 1209 | if (!async_exec && target_can_async_p ()) |
c5aa993b | 1210 | { |
43ff13b4 | 1211 | /* Simulate synchronous execution */ |
6426a772 | 1212 | async_disable_stdin (); |
43ff13b4 JM |
1213 | } |
1214 | ||
c906108c | 1215 | if (arg) |
ae66c1fc | 1216 | until_break_command (arg, from_tty, 0); |
c906108c SS |
1217 | else |
1218 | until_next_command (from_tty); | |
1219 | } | |
ae66c1fc EZ |
1220 | |
1221 | static void | |
1222 | advance_command (char *arg, int from_tty) | |
1223 | { | |
1224 | int async_exec = 0; | |
1225 | ||
1226 | if (!target_has_execution) | |
8a3fe4f8 | 1227 | error (_("The program is not running.")); |
ae66c1fc EZ |
1228 | |
1229 | if (arg == NULL) | |
e2e0b3e5 | 1230 | error_no_arg (_("a location")); |
ae66c1fc EZ |
1231 | |
1232 | /* Find out whether we must run in the background. */ | |
1233 | if (arg != NULL) | |
1234 | async_exec = strip_bg_char (&arg); | |
1235 | ||
1236 | /* If we must run in the background, but the target can't do it, | |
1237 | error out. */ | |
362646f5 | 1238 | if (async_exec && !target_can_async_p ()) |
8a3fe4f8 | 1239 | error (_("Asynchronous execution not supported on this target.")); |
ae66c1fc EZ |
1240 | |
1241 | /* If we are not asked to run in the bg, then prepare to run in the | |
1242 | foreground, synchronously. */ | |
362646f5 | 1243 | if (!async_exec && target_can_async_p ()) |
ae66c1fc EZ |
1244 | { |
1245 | /* Simulate synchronous execution. */ | |
1246 | async_disable_stdin (); | |
1247 | } | |
1248 | ||
1249 | until_break_command (arg, from_tty, 1); | |
1250 | } | |
c906108c | 1251 | \f |
f941662f MK |
1252 | /* Print the result of a function at the end of a 'finish' command. */ |
1253 | ||
11cf8741 | 1254 | static void |
c055b101 | 1255 | print_return_value (struct type *func_type, struct type *value_type) |
11cf8741 | 1256 | { |
31db7b6c | 1257 | struct gdbarch *gdbarch = current_gdbarch; |
bb472c1e MK |
1258 | struct cleanup *old_chain; |
1259 | struct ui_stream *stb; | |
44e5158b AC |
1260 | struct value *value; |
1261 | ||
181fc57c | 1262 | CHECK_TYPEDEF (value_type); |
44e5158b | 1263 | gdb_assert (TYPE_CODE (value_type) != TYPE_CODE_VOID); |
11cf8741 | 1264 | |
92ad9cd9 AC |
1265 | /* FIXME: 2003-09-27: When returning from a nested inferior function |
1266 | call, it's possible (with no help from the architecture vector) | |
1267 | to locate and return/print a "struct return" value. This is just | |
1268 | a more complicated case of what is already being done in in the | |
1269 | inferior function call code. In fact, when inferior function | |
1270 | calls are made async, this will likely be made the norm. */ | |
31db7b6c | 1271 | |
c055b101 CV |
1272 | switch (gdbarch_return_value (gdbarch, func_type, value_type, |
1273 | NULL, NULL, NULL)) | |
44e5158b | 1274 | { |
750eb019 AC |
1275 | case RETURN_VALUE_REGISTER_CONVENTION: |
1276 | case RETURN_VALUE_ABI_RETURNS_ADDRESS: | |
181fc57c | 1277 | case RETURN_VALUE_ABI_PRESERVES_ADDRESS: |
44e5158b | 1278 | value = allocate_value (value_type); |
c055b101 | 1279 | gdbarch_return_value (gdbarch, func_type, value_type, stop_registers, |
990a07ab | 1280 | value_contents_raw (value), NULL); |
750eb019 AC |
1281 | break; |
1282 | case RETURN_VALUE_STRUCT_CONVENTION: | |
1283 | value = NULL; | |
1284 | break; | |
1285 | default: | |
e2e0b3e5 | 1286 | internal_error (__FILE__, __LINE__, _("bad switch")); |
44e5158b | 1287 | } |
bb472c1e | 1288 | |
31db7b6c MK |
1289 | if (value) |
1290 | { | |
1291 | /* Print it. */ | |
1d751abe PA |
1292 | stb = ui_out_stream_new (uiout); |
1293 | old_chain = make_cleanup_ui_out_stream_delete (stb); | |
31db7b6c MK |
1294 | ui_out_text (uiout, "Value returned is "); |
1295 | ui_out_field_fmt (uiout, "gdb-result-var", "$%d", | |
1296 | record_latest_value (value)); | |
1297 | ui_out_text (uiout, " = "); | |
1298 | value_print (value, stb->stream, 0, Val_no_prettyprint); | |
1299 | ui_out_field_stream (uiout, "return-value", stb); | |
1300 | ui_out_text (uiout, "\n"); | |
1d751abe | 1301 | do_cleanups (old_chain); |
31db7b6c MK |
1302 | } |
1303 | else | |
1304 | { | |
1305 | ui_out_text (uiout, "Value returned has type: "); | |
1d751abe PA |
1306 | ui_out_field_string (uiout, "return-type", TYPE_NAME (value_type)); |
1307 | ui_out_text (uiout, "."); | |
1308 | ui_out_text (uiout, " Cannot determine contents\n"); | |
31db7b6c | 1309 | } |
11cf8741 JM |
1310 | } |
1311 | ||
43ff13b4 | 1312 | /* Stuff that needs to be done by the finish command after the target |
f941662f MK |
1313 | has stopped. In asynchronous mode, we wait for the target to stop |
1314 | in the call to poll or select in the event loop, so it is | |
1315 | impossible to do all the stuff as part of the finish_command | |
1316 | function itself. The only chance we have to complete this command | |
1317 | is in fetch_inferior_event, which is called by the event loop as | |
1318 | soon as it detects that the target has stopped. This function is | |
1319 | called via the cmd_continuation pointer. */ | |
1320 | ||
bfec99b2 | 1321 | struct finish_command_continuation_args |
43ff13b4 | 1322 | { |
43ff13b4 | 1323 | struct breakpoint *breakpoint; |
bfec99b2 PA |
1324 | struct symbol *function; |
1325 | }; | |
c5aa993b | 1326 | |
bfec99b2 | 1327 | static void |
604ead4a | 1328 | finish_command_continuation (void *arg) |
bfec99b2 PA |
1329 | { |
1330 | struct finish_command_continuation_args *a = arg; | |
43ff13b4 | 1331 | |
347bddb7 PA |
1332 | bpstat bs = NULL; |
1333 | ||
1334 | if (!ptid_equal (inferior_ptid, null_ptid) | |
1335 | && target_has_execution | |
1336 | && is_stopped (inferior_ptid)) | |
1337 | bs = inferior_thread ()->stop_bpstat; | |
1338 | ||
1339 | if (bpstat_find_breakpoint (bs, a->breakpoint) != NULL | |
604ead4a | 1340 | && a->function != NULL) |
43ff13b4 | 1341 | { |
604ead4a | 1342 | struct type *value_type; |
bfec99b2 | 1343 | |
604ead4a PA |
1344 | value_type = TYPE_TARGET_TYPE (SYMBOL_TYPE (a->function)); |
1345 | if (!value_type) | |
1346 | internal_error (__FILE__, __LINE__, | |
1347 | _("finish_command: function has no target type")); | |
f5871ec0 | 1348 | |
604ead4a PA |
1349 | if (TYPE_CODE (value_type) != TYPE_CODE_VOID) |
1350 | print_return_value (SYMBOL_TYPE (a->function), value_type); | |
43ff13b4 | 1351 | } |
f941662f | 1352 | |
604ead4a PA |
1353 | /* We suppress normal call of normal_stop observer and do it here so |
1354 | that that *stopped notification includes the return value. */ | |
1355 | /* NOTE: This is broken in non-stop mode. There is no guarantee the | |
1356 | next stop will be in the same thread that we started doing a | |
1357 | finish on. This suppressing (or some other replacement means) | |
1358 | should be a thread property. */ | |
347bddb7 | 1359 | observer_notify_normal_stop (bs); |
8f6a8e84 | 1360 | suppress_stop_observer = 0; |
bfec99b2 | 1361 | delete_breakpoint (a->breakpoint); |
43ff13b4 JM |
1362 | } |
1363 | ||
604ead4a PA |
1364 | static void |
1365 | finish_command_continuation_free_arg (void *arg) | |
1366 | { | |
1367 | /* NOTE: See finish_command_continuation. This would go away, if | |
1368 | this suppressing is made a thread property. */ | |
1369 | suppress_stop_observer = 0; | |
1370 | xfree (arg); | |
1371 | } | |
1372 | ||
f941662f MK |
1373 | /* "finish": Set a temporary breakpoint at the place the selected |
1374 | frame will return to, then continue. */ | |
c906108c SS |
1375 | |
1376 | static void | |
fba45db2 | 1377 | finish_command (char *arg, int from_tty) |
c906108c SS |
1378 | { |
1379 | struct symtab_and_line sal; | |
52f0bd74 AC |
1380 | struct frame_info *frame; |
1381 | struct symbol *function; | |
c906108c SS |
1382 | struct breakpoint *breakpoint; |
1383 | struct cleanup *old_chain; | |
bfec99b2 | 1384 | struct finish_command_continuation_args *cargs; |
32400beb | 1385 | struct thread_info *tp; |
43ff13b4 JM |
1386 | |
1387 | int async_exec = 0; | |
1388 | ||
f941662f | 1389 | /* Find out whether we must run in the background. */ |
43ff13b4 JM |
1390 | if (arg != NULL) |
1391 | async_exec = strip_bg_char (&arg); | |
1392 | ||
1393 | /* If we must run in the background, but the target can't do it, | |
f941662f | 1394 | error out. */ |
362646f5 | 1395 | if (async_exec && !target_can_async_p ()) |
8a3fe4f8 | 1396 | error (_("Asynchronous execution not supported on this target.")); |
43ff13b4 JM |
1397 | |
1398 | /* If we are not asked to run in the bg, then prepare to run in the | |
f941662f | 1399 | foreground, synchronously. */ |
362646f5 | 1400 | if (!async_exec && target_can_async_p ()) |
c5aa993b | 1401 | { |
f941662f | 1402 | /* Simulate synchronous execution. */ |
6426a772 | 1403 | async_disable_stdin (); |
43ff13b4 | 1404 | } |
c906108c SS |
1405 | |
1406 | if (arg) | |
8a3fe4f8 | 1407 | error (_("The \"finish\" command does not take any arguments.")); |
c906108c | 1408 | if (!target_has_execution) |
8a3fe4f8 | 1409 | error (_("The program is not running.")); |
c906108c | 1410 | |
206415a3 | 1411 | frame = get_prev_frame (get_selected_frame (_("No selected frame."))); |
c906108c | 1412 | if (frame == 0) |
8a3fe4f8 | 1413 | error (_("\"finish\" not meaningful in the outermost frame.")); |
c906108c | 1414 | |
32400beb PA |
1415 | tp = inferior_thread (); |
1416 | ||
c906108c SS |
1417 | clear_proceed_status (); |
1418 | ||
bdd78e62 AC |
1419 | sal = find_pc_line (get_frame_pc (frame), 0); |
1420 | sal.pc = get_frame_pc (frame); | |
c906108c | 1421 | |
818dd999 | 1422 | breakpoint = set_momentary_breakpoint (sal, get_frame_id (frame), bp_finish); |
c906108c | 1423 | |
f107f563 | 1424 | old_chain = make_cleanup_delete_breakpoint (breakpoint); |
c906108c SS |
1425 | |
1426 | /* Find the function we will return from. */ | |
1427 | ||
206415a3 | 1428 | function = find_pc_function (get_frame_pc (get_selected_frame (NULL))); |
c906108c | 1429 | |
f941662f MK |
1430 | /* Print info on the selected frame, including level number but not |
1431 | source. */ | |
c906108c SS |
1432 | if (from_tty) |
1433 | { | |
a3f17187 | 1434 | printf_filtered (_("Run till exit from ")); |
b04f3ab4 | 1435 | print_stack_frame (get_selected_frame (NULL), 1, LOCATION); |
c906108c SS |
1436 | } |
1437 | ||
32400beb | 1438 | tp->proceed_to_finish = 1; /* We want stop_registers, please... */ |
8f6a8e84 VP |
1439 | make_cleanup_restore_integer (&suppress_stop_observer); |
1440 | suppress_stop_observer = 1; | |
32c1e744 VP |
1441 | proceed ((CORE_ADDR) -1, TARGET_SIGNAL_DEFAULT, 0); |
1442 | ||
bfec99b2 PA |
1443 | cargs = xmalloc (sizeof (*cargs)); |
1444 | ||
1445 | cargs->breakpoint = breakpoint; | |
1446 | cargs->function = function; | |
604ead4a PA |
1447 | add_continuation (finish_command_continuation, cargs, |
1448 | finish_command_continuation_free_arg); | |
bfec99b2 | 1449 | |
f107f563 | 1450 | discard_cleanups (old_chain); |
362646f5 | 1451 | if (!target_can_async_p ()) |
604ead4a | 1452 | do_all_continuations (); |
c906108c SS |
1453 | } |
1454 | \f | |
f941662f | 1455 | |
c906108c | 1456 | static void |
fba45db2 | 1457 | program_info (char *args, int from_tty) |
c906108c | 1458 | { |
347bddb7 PA |
1459 | bpstat bs; |
1460 | int num, stat; | |
1461 | struct thread_info *tp; | |
1462 | ptid_t ptid; | |
c5aa993b | 1463 | |
c906108c SS |
1464 | if (!target_has_execution) |
1465 | { | |
a3f17187 | 1466 | printf_filtered (_("The program being debugged is not being run.\n")); |
c906108c SS |
1467 | return; |
1468 | } | |
1469 | ||
347bddb7 PA |
1470 | if (non_stop) |
1471 | ptid = inferior_ptid; | |
1472 | else | |
1473 | { | |
1474 | struct target_waitstatus ws; | |
1475 | get_last_target_status (&ptid, &ws); | |
1476 | } | |
1477 | ||
1478 | if (ptid_equal (ptid, null_ptid) || is_exited (ptid)) | |
1479 | error (_("Invalid selected thread.")); | |
1480 | else if (is_running (ptid)) | |
1481 | error (_("Selected thread is running.")); | |
1482 | ||
1483 | tp = find_thread_pid (ptid); | |
1484 | bs = tp->stop_bpstat; | |
1485 | stat = bpstat_num (&bs, &num); | |
1486 | ||
c906108c | 1487 | target_files_info (); |
a3f17187 | 1488 | printf_filtered (_("Program stopped at %s.\n"), |
bb599908 | 1489 | hex_string ((unsigned long) stop_pc)); |
c906108c | 1490 | if (stop_step) |
a3f17187 | 1491 | printf_filtered (_("It stopped after being stepped.\n")); |
8671a17b | 1492 | else if (stat != 0) |
c906108c SS |
1493 | { |
1494 | /* There may be several breakpoints in the same place, so this | |
c5aa993b | 1495 | isn't as strange as it seems. */ |
8671a17b | 1496 | while (stat != 0) |
c906108c | 1497 | { |
8671a17b | 1498 | if (stat < 0) |
c906108c | 1499 | { |
a3f17187 AC |
1500 | printf_filtered (_("\ |
1501 | It stopped at a breakpoint that has since been deleted.\n")); | |
c906108c SS |
1502 | } |
1503 | else | |
a3f17187 | 1504 | printf_filtered (_("It stopped at breakpoint %d.\n"), num); |
8671a17b | 1505 | stat = bpstat_num (&bs, &num); |
c906108c SS |
1506 | } |
1507 | } | |
1508 | else if (stop_signal != TARGET_SIGNAL_0) | |
1509 | { | |
a3f17187 | 1510 | printf_filtered (_("It stopped with signal %s, %s.\n"), |
c906108c SS |
1511 | target_signal_to_name (stop_signal), |
1512 | target_signal_to_string (stop_signal)); | |
1513 | } | |
1514 | ||
1515 | if (!from_tty) | |
1516 | { | |
a3f17187 AC |
1517 | printf_filtered (_("\ |
1518 | Type \"info stack\" or \"info registers\" for more information.\n")); | |
c906108c SS |
1519 | } |
1520 | } | |
1521 | \f | |
1522 | static void | |
fba45db2 | 1523 | environment_info (char *var, int from_tty) |
c906108c SS |
1524 | { |
1525 | if (var) | |
1526 | { | |
aa1ee363 | 1527 | char *val = get_in_environ (inferior_environ, var); |
c906108c SS |
1528 | if (val) |
1529 | { | |
1530 | puts_filtered (var); | |
1531 | puts_filtered (" = "); | |
1532 | puts_filtered (val); | |
1533 | puts_filtered ("\n"); | |
1534 | } | |
1535 | else | |
1536 | { | |
1537 | puts_filtered ("Environment variable \""); | |
1538 | puts_filtered (var); | |
1539 | puts_filtered ("\" not defined.\n"); | |
1540 | } | |
1541 | } | |
1542 | else | |
1543 | { | |
aa1ee363 | 1544 | char **vector = environ_vector (inferior_environ); |
c906108c SS |
1545 | while (*vector) |
1546 | { | |
1547 | puts_filtered (*vector++); | |
1548 | puts_filtered ("\n"); | |
1549 | } | |
1550 | } | |
1551 | } | |
1552 | ||
1553 | static void | |
fba45db2 | 1554 | set_environment_command (char *arg, int from_tty) |
c906108c | 1555 | { |
52f0bd74 | 1556 | char *p, *val, *var; |
c906108c SS |
1557 | int nullset = 0; |
1558 | ||
1559 | if (arg == 0) | |
e2e0b3e5 | 1560 | error_no_arg (_("environment variable and value")); |
c906108c SS |
1561 | |
1562 | /* Find seperation between variable name and value */ | |
1563 | p = (char *) strchr (arg, '='); | |
1564 | val = (char *) strchr (arg, ' '); | |
1565 | ||
1566 | if (p != 0 && val != 0) | |
1567 | { | |
1568 | /* We have both a space and an equals. If the space is before the | |
c5aa993b JM |
1569 | equals, walk forward over the spaces til we see a nonspace |
1570 | (possibly the equals). */ | |
c906108c SS |
1571 | if (p > val) |
1572 | while (*val == ' ') | |
1573 | val++; | |
1574 | ||
1575 | /* Now if the = is after the char following the spaces, | |
c5aa993b | 1576 | take the char following the spaces. */ |
c906108c SS |
1577 | if (p > val) |
1578 | p = val - 1; | |
1579 | } | |
1580 | else if (val != 0 && p == 0) | |
1581 | p = val; | |
1582 | ||
1583 | if (p == arg) | |
e2e0b3e5 | 1584 | error_no_arg (_("environment variable to set")); |
c906108c SS |
1585 | |
1586 | if (p == 0 || p[1] == 0) | |
1587 | { | |
1588 | nullset = 1; | |
1589 | if (p == 0) | |
1590 | p = arg + strlen (arg); /* So that savestring below will work */ | |
1591 | } | |
1592 | else | |
1593 | { | |
1594 | /* Not setting variable value to null */ | |
1595 | val = p + 1; | |
1596 | while (*val == ' ' || *val == '\t') | |
1597 | val++; | |
1598 | } | |
1599 | ||
c5aa993b JM |
1600 | while (p != arg && (p[-1] == ' ' || p[-1] == '\t')) |
1601 | p--; | |
c906108c SS |
1602 | |
1603 | var = savestring (arg, p - arg); | |
1604 | if (nullset) | |
1605 | { | |
a3f17187 AC |
1606 | printf_filtered (_("\ |
1607 | Setting environment variable \"%s\" to null value.\n"), | |
1608 | var); | |
c906108c SS |
1609 | set_in_environ (inferior_environ, var, ""); |
1610 | } | |
1611 | else | |
1612 | set_in_environ (inferior_environ, var, val); | |
b8c9b27d | 1613 | xfree (var); |
c906108c SS |
1614 | } |
1615 | ||
1616 | static void | |
fba45db2 | 1617 | unset_environment_command (char *var, int from_tty) |
c906108c SS |
1618 | { |
1619 | if (var == 0) | |
1620 | { | |
1621 | /* If there is no argument, delete all environment variables. | |
c5aa993b | 1622 | Ask for confirmation if reading from the terminal. */ |
e2e0b3e5 | 1623 | if (!from_tty || query (_("Delete all environment variables? "))) |
c906108c SS |
1624 | { |
1625 | free_environ (inferior_environ); | |
1626 | inferior_environ = make_environ (); | |
1627 | } | |
1628 | } | |
1629 | else | |
1630 | unset_in_environ (inferior_environ, var); | |
1631 | } | |
1632 | ||
1633 | /* Handle the execution path (PATH variable) */ | |
1634 | ||
1635 | static const char path_var_name[] = "PATH"; | |
1636 | ||
c906108c | 1637 | static void |
fba45db2 | 1638 | path_info (char *args, int from_tty) |
c906108c SS |
1639 | { |
1640 | puts_filtered ("Executable and object file path: "); | |
1641 | puts_filtered (get_in_environ (inferior_environ, path_var_name)); | |
1642 | puts_filtered ("\n"); | |
1643 | } | |
1644 | ||
1645 | /* Add zero or more directories to the front of the execution path. */ | |
1646 | ||
1647 | static void | |
fba45db2 | 1648 | path_command (char *dirname, int from_tty) |
c906108c SS |
1649 | { |
1650 | char *exec_path; | |
1651 | char *env; | |
1652 | dont_repeat (); | |
1653 | env = get_in_environ (inferior_environ, path_var_name); | |
1654 | /* Can be null if path is not set */ | |
1655 | if (!env) | |
1656 | env = ""; | |
4fcf66da | 1657 | exec_path = xstrdup (env); |
c906108c SS |
1658 | mod_path (dirname, &exec_path); |
1659 | set_in_environ (inferior_environ, path_var_name, exec_path); | |
b8c9b27d | 1660 | xfree (exec_path); |
c906108c | 1661 | if (from_tty) |
c5aa993b | 1662 | path_info ((char *) NULL, from_tty); |
c906108c | 1663 | } |
c906108c | 1664 | \f |
c5aa993b | 1665 | |
4782dc19 | 1666 | /* Print out the machine register regnum. If regnum is -1, print all |
0ab7a791 AC |
1667 | registers (print_all == 1) or all non-float and non-vector |
1668 | registers (print_all == 0). | |
c906108c SS |
1669 | |
1670 | For most machines, having all_registers_info() print the | |
0ab7a791 AC |
1671 | register(s) one per line is good enough. If a different format is |
1672 | required, (eg, for MIPS or Pyramid 90x, which both have lots of | |
1673 | regs), or there is an existing convention for showing all the | |
1674 | registers, define the architecture method PRINT_REGISTERS_INFO to | |
1675 | provide that format. */ | |
c906108c | 1676 | |
666e11c5 | 1677 | void |
0ab7a791 AC |
1678 | default_print_registers_info (struct gdbarch *gdbarch, |
1679 | struct ui_file *file, | |
1680 | struct frame_info *frame, | |
1681 | int regnum, int print_all) | |
c906108c | 1682 | { |
0ab7a791 | 1683 | int i; |
a4bd449d UW |
1684 | const int numregs = gdbarch_num_regs (gdbarch) |
1685 | + gdbarch_num_pseudo_regs (gdbarch); | |
10c42a71 | 1686 | gdb_byte buffer[MAX_REGISTER_SIZE]; |
0ab7a791 | 1687 | |
c906108c SS |
1688 | for (i = 0; i < numregs; i++) |
1689 | { | |
4782dc19 AC |
1690 | /* Decide between printing all regs, non-float / vector regs, or |
1691 | specific reg. */ | |
c5aa993b JM |
1692 | if (regnum == -1) |
1693 | { | |
f9418c0f | 1694 | if (print_all) |
4782dc19 | 1695 | { |
f9418c0f | 1696 | if (!gdbarch_register_reggroup_p (gdbarch, i, all_reggroup)) |
4782dc19 | 1697 | continue; |
f9418c0f AC |
1698 | } |
1699 | else | |
1700 | { | |
1701 | if (!gdbarch_register_reggroup_p (gdbarch, i, general_reggroup)) | |
4782dc19 AC |
1702 | continue; |
1703 | } | |
c5aa993b JM |
1704 | } |
1705 | else | |
1706 | { | |
1707 | if (i != regnum) | |
1708 | continue; | |
1709 | } | |
c906108c SS |
1710 | |
1711 | /* If the register name is empty, it is undefined for this | |
c5aa993b | 1712 | processor, so don't display anything. */ |
a4bd449d UW |
1713 | if (gdbarch_register_name (gdbarch, i) == NULL |
1714 | || *(gdbarch_register_name (gdbarch, i)) == '\0') | |
c906108c SS |
1715 | continue; |
1716 | ||
a4bd449d | 1717 | fputs_filtered (gdbarch_register_name (gdbarch, i), file); |
c9f4d572 | 1718 | print_spaces_filtered (15 - strlen (gdbarch_register_name |
a4bd449d | 1719 | (gdbarch, i)), file); |
c906108c SS |
1720 | |
1721 | /* Get the data in raw format. */ | |
9730f241 | 1722 | if (! frame_register_read (frame, i, buffer)) |
c906108c | 1723 | { |
0ab7a791 | 1724 | fprintf_filtered (file, "*value not available*\n"); |
c906108c SS |
1725 | continue; |
1726 | } | |
1727 | ||
0ab7a791 AC |
1728 | /* If virtual format is floating, print it that way, and in raw |
1729 | hex. */ | |
f949c649 TJB |
1730 | if (TYPE_CODE (register_type (gdbarch, i)) == TYPE_CODE_FLT |
1731 | || TYPE_CODE (register_type (gdbarch, i)) == TYPE_CODE_DECFLOAT) | |
c906108c | 1732 | { |
0ab7a791 | 1733 | int j; |
c906108c | 1734 | |
a4bd449d | 1735 | val_print (register_type (gdbarch, i), buffer, 0, 0, |
d8ca156b | 1736 | file, 0, 1, 0, Val_pretty_default, current_language); |
c906108c | 1737 | |
0ab7a791 | 1738 | fprintf_filtered (file, "\t(raw 0x"); |
a4bd449d | 1739 | for (j = 0; j < register_size (gdbarch, i); j++) |
c906108c | 1740 | { |
0ab7a791 | 1741 | int idx; |
a4bd449d | 1742 | if (gdbarch_byte_order (gdbarch) == BFD_ENDIAN_BIG) |
0ab7a791 AC |
1743 | idx = j; |
1744 | else | |
a4bd449d | 1745 | idx = register_size (gdbarch, i) - 1 - j; |
9730f241 | 1746 | fprintf_filtered (file, "%02x", (unsigned char) buffer[idx]); |
c906108c | 1747 | } |
0ab7a791 | 1748 | fprintf_filtered (file, ")"); |
c906108c | 1749 | } |
c906108c SS |
1750 | else |
1751 | { | |
ab4327e0 | 1752 | /* Print the register in hex. */ |
a4bd449d | 1753 | val_print (register_type (gdbarch, i), buffer, 0, 0, |
d8ca156b | 1754 | file, 'x', 1, 0, Val_pretty_default, current_language); |
ab4327e0 EZ |
1755 | /* If not a vector register, print it also according to its |
1756 | natural format. */ | |
a4bd449d | 1757 | if (TYPE_VECTOR (register_type (gdbarch, i)) == 0) |
ab4327e0 | 1758 | { |
9d84ac84 | 1759 | fprintf_filtered (file, "\t"); |
a4bd449d | 1760 | val_print (register_type (gdbarch, i), buffer, 0, 0, |
d8ca156b | 1761 | file, 0, 1, 0, Val_pretty_default, current_language); |
ab4327e0 | 1762 | } |
c906108c SS |
1763 | } |
1764 | ||
0ab7a791 | 1765 | fprintf_filtered (file, "\n"); |
c906108c SS |
1766 | } |
1767 | } | |
c906108c | 1768 | |
c906108c | 1769 | void |
fba45db2 | 1770 | registers_info (char *addr_exp, int fpregs) |
c906108c | 1771 | { |
206415a3 | 1772 | struct frame_info *frame; |
a4bd449d | 1773 | struct gdbarch *gdbarch; |
c906108c | 1774 | int regnum, numregs; |
52f0bd74 | 1775 | char *end; |
c906108c SS |
1776 | |
1777 | if (!target_has_registers) | |
8a3fe4f8 | 1778 | error (_("The program has no registers now.")); |
206415a3 | 1779 | frame = get_selected_frame (NULL); |
a4bd449d | 1780 | gdbarch = get_frame_arch (frame); |
c906108c SS |
1781 | |
1782 | if (!addr_exp) | |
1783 | { | |
a4bd449d | 1784 | gdbarch_print_registers_info (gdbarch, gdb_stdout, |
206415a3 | 1785 | frame, -1, fpregs); |
c906108c SS |
1786 | return; |
1787 | } | |
1788 | ||
f9418c0f | 1789 | while (*addr_exp != '\0') |
c5aa993b | 1790 | { |
f9418c0f AC |
1791 | char *start; |
1792 | const char *end; | |
c906108c | 1793 | |
f9418c0f AC |
1794 | /* Keep skipping leading white space. */ |
1795 | if (isspace ((*addr_exp))) | |
1796 | { | |
1797 | addr_exp++; | |
1798 | continue; | |
1799 | } | |
c906108c | 1800 | |
f9418c0f AC |
1801 | /* Discard any leading ``$''. Check that there is something |
1802 | resembling a register following it. */ | |
1803 | if (addr_exp[0] == '$') | |
1804 | addr_exp++; | |
1805 | if (isspace ((*addr_exp)) || (*addr_exp) == '\0') | |
8a3fe4f8 | 1806 | error (_("Missing register name")); |
c906108c | 1807 | |
f9418c0f AC |
1808 | /* Find the start/end of this register name/num/group. */ |
1809 | start = addr_exp; | |
1810 | while ((*addr_exp) != '\0' && !isspace ((*addr_exp))) | |
1811 | addr_exp++; | |
1812 | end = addr_exp; | |
ad842144 | 1813 | |
f9418c0f AC |
1814 | /* Figure out what we've found and display it. */ |
1815 | ||
1816 | /* A register name? */ | |
1817 | { | |
029a67e4 | 1818 | int regnum = user_reg_map_name_to_regnum (gdbarch, start, end - start); |
f9418c0f AC |
1819 | if (regnum >= 0) |
1820 | { | |
ad842144 MR |
1821 | /* User registers lie completely outside of the range of |
1822 | normal registers. Catch them early so that the target | |
1823 | never sees them. */ | |
1824 | if (regnum >= gdbarch_num_regs (gdbarch) | |
1825 | + gdbarch_num_pseudo_regs (gdbarch)) | |
1826 | { | |
1827 | struct value *val = value_of_user_reg (regnum, frame); | |
1828 | ||
1829 | printf_filtered ("%s: ", start); | |
1830 | print_scalar_formatted (value_contents (val), | |
1831 | check_typedef (value_type (val)), | |
1832 | 'x', 0, gdb_stdout); | |
1833 | printf_filtered ("\n"); | |
1834 | } | |
1835 | else | |
1836 | gdbarch_print_registers_info (gdbarch, gdb_stdout, | |
1837 | frame, regnum, fpregs); | |
f9418c0f AC |
1838 | continue; |
1839 | } | |
1840 | } | |
ad842144 | 1841 | |
f9418c0f AC |
1842 | /* A register number? (how portable is this one?). */ |
1843 | { | |
1844 | char *endptr; | |
1845 | int regnum = strtol (start, &endptr, 0); | |
1846 | if (endptr == end | |
1847 | && regnum >= 0 | |
a4bd449d UW |
1848 | && regnum < gdbarch_num_regs (gdbarch) |
1849 | + gdbarch_num_pseudo_regs (gdbarch)) | |
f9418c0f | 1850 | { |
a4bd449d | 1851 | gdbarch_print_registers_info (gdbarch, gdb_stdout, |
206415a3 | 1852 | frame, regnum, fpregs); |
f9418c0f AC |
1853 | continue; |
1854 | } | |
1855 | } | |
1856 | ||
1857 | /* A register group? */ | |
1858 | { | |
6c7d17ba | 1859 | struct reggroup *group; |
a4bd449d | 1860 | for (group = reggroup_next (gdbarch, NULL); |
6c7d17ba | 1861 | group != NULL; |
a4bd449d | 1862 | group = reggroup_next (gdbarch, group)) |
f9418c0f AC |
1863 | { |
1864 | /* Don't bother with a length check. Should the user | |
1865 | enter a short register group name, go with the first | |
1866 | group that matches. */ | |
6c7d17ba | 1867 | if (strncmp (start, reggroup_name (group), end - start) == 0) |
f9418c0f AC |
1868 | break; |
1869 | } | |
6c7d17ba | 1870 | if (group != NULL) |
f9418c0f AC |
1871 | { |
1872 | int regnum; | |
f57d151a | 1873 | for (regnum = 0; |
a4bd449d UW |
1874 | regnum < gdbarch_num_regs (gdbarch) |
1875 | + gdbarch_num_pseudo_regs (gdbarch); | |
f57d151a | 1876 | regnum++) |
f9418c0f | 1877 | { |
a4bd449d UW |
1878 | if (gdbarch_register_reggroup_p (gdbarch, regnum, group)) |
1879 | gdbarch_print_registers_info (gdbarch, | |
206415a3 | 1880 | gdb_stdout, frame, |
f9418c0f AC |
1881 | regnum, fpregs); |
1882 | } | |
1883 | continue; | |
1884 | } | |
1885 | } | |
c906108c | 1886 | |
f9418c0f | 1887 | /* Nothing matched. */ |
8a3fe4f8 | 1888 | error (_("Invalid register `%.*s'"), (int) (end - start), start); |
c5aa993b | 1889 | } |
c906108c SS |
1890 | } |
1891 | ||
1892 | void | |
fba45db2 | 1893 | all_registers_info (char *addr_exp, int from_tty) |
c906108c SS |
1894 | { |
1895 | registers_info (addr_exp, 1); | |
1896 | } | |
1897 | ||
a58dd373 | 1898 | static void |
fba45db2 | 1899 | nofp_registers_info (char *addr_exp, int from_tty) |
c906108c SS |
1900 | { |
1901 | registers_info (addr_exp, 0); | |
1902 | } | |
e76f1f2e AC |
1903 | |
1904 | static void | |
1905 | print_vector_info (struct gdbarch *gdbarch, struct ui_file *file, | |
1906 | struct frame_info *frame, const char *args) | |
1907 | { | |
1908 | if (gdbarch_print_vector_info_p (gdbarch)) | |
1909 | gdbarch_print_vector_info (gdbarch, file, frame, args); | |
1910 | else | |
1911 | { | |
1912 | int regnum; | |
1913 | int printed_something = 0; | |
ab4327e0 | 1914 | |
f57d151a | 1915 | for (regnum = 0; |
a4bd449d UW |
1916 | regnum < gdbarch_num_regs (gdbarch) |
1917 | + gdbarch_num_pseudo_regs (gdbarch); | |
f57d151a | 1918 | regnum++) |
e76f1f2e | 1919 | { |
f9418c0f | 1920 | if (gdbarch_register_reggroup_p (gdbarch, regnum, vector_reggroup)) |
e76f1f2e AC |
1921 | { |
1922 | printed_something = 1; | |
e76f1f2e | 1923 | gdbarch_print_registers_info (gdbarch, file, frame, regnum, 1); |
e76f1f2e AC |
1924 | } |
1925 | } | |
1926 | if (!printed_something) | |
1927 | fprintf_filtered (file, "No vector information\n"); | |
1928 | } | |
1929 | } | |
1930 | ||
1931 | static void | |
1932 | vector_info (char *args, int from_tty) | |
1933 | { | |
206415a3 DJ |
1934 | if (!target_has_registers) |
1935 | error (_("The program has no registers now.")); | |
1936 | ||
1937 | print_vector_info (current_gdbarch, gdb_stdout, | |
1938 | get_selected_frame (NULL), args); | |
e76f1f2e | 1939 | } |
c906108c | 1940 | \f |
c5aa993b | 1941 | |
c906108c SS |
1942 | /* |
1943 | * TODO: | |
1944 | * Should save/restore the tty state since it might be that the | |
1945 | * program to be debugged was started on this tty and it wants | |
1946 | * the tty in some state other than what we want. If it's running | |
1947 | * on another terminal or without a terminal, then saving and | |
1948 | * restoring the tty state is a harmless no-op. | |
1949 | * This only needs to be done if we are attaching to a process. | |
1950 | */ | |
1951 | ||
1952 | /* | |
1953 | attach_command -- | |
1954 | takes a program started up outside of gdb and ``attaches'' to it. | |
1955 | This stops it cold in its tracks and allows us to start debugging it. | |
1956 | and wait for the trace-trap that results from attaching. */ | |
1957 | ||
9356cf8d PA |
1958 | static void |
1959 | attach_command_post_wait (char *args, int from_tty, int async_exec) | |
1960 | { | |
1961 | char *exec_file; | |
1962 | char *full_exec_path = NULL; | |
1963 | ||
1964 | stop_soon = NO_STOP_QUIETLY; | |
1965 | ||
1966 | /* If no exec file is yet known, try to determine it from the | |
1967 | process itself. */ | |
1968 | exec_file = (char *) get_exec_file (0); | |
1969 | if (!exec_file) | |
1970 | { | |
1971 | exec_file = target_pid_to_exec_file (PIDGET (inferior_ptid)); | |
1972 | if (exec_file) | |
1973 | { | |
1974 | /* It's possible we don't have a full path, but rather just a | |
1975 | filename. Some targets, such as HP-UX, don't provide the | |
1976 | full path, sigh. | |
1977 | ||
1978 | Attempt to qualify the filename against the source path. | |
1979 | (If that fails, we'll just fall back on the original | |
1980 | filename. Not much more we can do...) | |
1981 | */ | |
1982 | if (!source_full_path_of (exec_file, &full_exec_path)) | |
1983 | full_exec_path = savestring (exec_file, strlen (exec_file)); | |
1984 | ||
1985 | exec_file_attach (full_exec_path, from_tty); | |
1986 | symbol_file_add_main (full_exec_path, from_tty); | |
1987 | } | |
1988 | } | |
1989 | else | |
1990 | { | |
1991 | reopen_exec_file (); | |
1992 | reread_symbols (); | |
1993 | } | |
1994 | ||
1995 | /* Take any necessary post-attaching actions for this platform. */ | |
1996 | target_post_attach (PIDGET (inferior_ptid)); | |
1997 | ||
1998 | post_create_inferior (¤t_target, from_tty); | |
1999 | ||
2000 | /* Install inferior's terminal modes. */ | |
2001 | target_terminal_inferior (); | |
2002 | ||
2003 | if (async_exec) | |
2004 | proceed ((CORE_ADDR) -1, TARGET_SIGNAL_0, 0); | |
2005 | else | |
2006 | { | |
2007 | if (target_can_async_p ()) | |
2008 | async_enable_stdin (); | |
2009 | normal_stop (); | |
2010 | if (deprecated_attach_hook) | |
2011 | deprecated_attach_hook (); | |
2012 | } | |
2013 | } | |
2014 | ||
bfec99b2 | 2015 | struct attach_command_continuation_args |
9356cf8d PA |
2016 | { |
2017 | char *args; | |
2018 | int from_tty; | |
2019 | int async_exec; | |
bfec99b2 | 2020 | }; |
9356cf8d | 2021 | |
bfec99b2 | 2022 | static void |
604ead4a | 2023 | attach_command_continuation (void *args) |
bfec99b2 PA |
2024 | { |
2025 | struct attach_command_continuation_args *a = args; | |
2026 | attach_command_post_wait (a->args, a->from_tty, a->async_exec); | |
9356cf8d PA |
2027 | } |
2028 | ||
604ead4a PA |
2029 | static void |
2030 | attach_command_continuation_free_args (void *args) | |
2031 | { | |
2032 | struct attach_command_continuation_args *a = args; | |
2033 | xfree (a->args); | |
2034 | xfree (a); | |
2035 | } | |
2036 | ||
c906108c | 2037 | void |
fba45db2 | 2038 | attach_command (char *args, int from_tty) |
c906108c | 2039 | { |
c5aa993b JM |
2040 | char *exec_file; |
2041 | char *full_exec_path = NULL; | |
9356cf8d | 2042 | int async_exec = 0; |
c906108c | 2043 | |
c5aa993b | 2044 | dont_repeat (); /* Not for the faint of heart */ |
c906108c SS |
2045 | |
2046 | if (target_has_execution) | |
2047 | { | |
2048 | if (query ("A program is being debugged already. Kill it? ")) | |
2049 | target_kill (); | |
2050 | else | |
8a3fe4f8 | 2051 | error (_("Not killed.")); |
c906108c SS |
2052 | } |
2053 | ||
fd79ecee DJ |
2054 | /* Clean up any leftovers from other runs. Some other things from |
2055 | this function should probably be moved into target_pre_inferior. */ | |
2056 | target_pre_inferior (from_tty); | |
2057 | ||
9908b566 VP |
2058 | if (non_stop && !target_supports_non_stop ()) |
2059 | error (_("Cannot attach to this target in non-stop mode")); | |
2060 | ||
9356cf8d PA |
2061 | if (args) |
2062 | { | |
2063 | async_exec = strip_bg_char (&args); | |
2064 | ||
2065 | /* If we get a request for running in the bg but the target | |
2066 | doesn't support it, error out. */ | |
2067 | if (async_exec && !target_can_async_p ()) | |
2068 | error (_("Asynchronous execution not supported on this target.")); | |
2069 | } | |
2070 | ||
2071 | /* If we don't get a request of running in the bg, then we need | |
2072 | to simulate synchronous (fg) execution. */ | |
2073 | if (!async_exec && target_can_async_p ()) | |
2074 | { | |
2075 | /* Simulate synchronous execution */ | |
2076 | async_disable_stdin (); | |
2077 | } | |
2078 | ||
c906108c SS |
2079 | target_attach (args, from_tty); |
2080 | ||
2081 | /* Set up the "saved terminal modes" of the inferior | |
2082 | based on what modes we are starting it with. */ | |
2083 | target_terminal_init (); | |
2084 | ||
c906108c SS |
2085 | /* Set up execution context to know that we should return from |
2086 | wait_for_inferior as soon as the target reports a stop. */ | |
2087 | init_wait_for_inferior (); | |
2088 | clear_proceed_status (); | |
c906108c | 2089 | |
dc177b7a PA |
2090 | /* Some system don't generate traps when attaching to inferior. |
2091 | E.g. Mach 3 or GNU hurd. */ | |
2092 | if (!target_attach_no_wait) | |
c5aa993b | 2093 | { |
dc177b7a PA |
2094 | /* Careful here. See comments in inferior.h. Basically some |
2095 | OSes don't ignore SIGSTOPs on continue requests anymore. We | |
2096 | need a way for handle_inferior_event to reset the stop_signal | |
2097 | variable after an attach, and this is what | |
2098 | STOP_QUIETLY_NO_SIGSTOP is for. */ | |
2099 | stop_soon = STOP_QUIETLY_NO_SIGSTOP; | |
c5aa993b | 2100 | |
dc177b7a PA |
2101 | if (target_can_async_p ()) |
2102 | { | |
2103 | /* sync_execution mode. Wait for stop. */ | |
bfec99b2 PA |
2104 | struct attach_command_continuation_args *a; |
2105 | ||
2106 | a = xmalloc (sizeof (*a)); | |
2107 | a->args = xstrdup (args); | |
2108 | a->from_tty = from_tty; | |
2109 | a->async_exec = async_exec; | |
604ead4a PA |
2110 | add_continuation (attach_command_continuation, a, |
2111 | attach_command_continuation_free_args); | |
dc177b7a PA |
2112 | return; |
2113 | } | |
c906108c | 2114 | |
dc177b7a PA |
2115 | wait_for_inferior (0); |
2116 | } | |
6426a772 | 2117 | |
9356cf8d | 2118 | attach_command_post_wait (args, from_tty, async_exec); |
c906108c SS |
2119 | } |
2120 | ||
2121 | /* | |
2122 | * detach_command -- | |
2123 | * takes a program previously attached to and detaches it. | |
2124 | * The program resumes execution and will no longer stop | |
2125 | * on signals, etc. We better not have left any breakpoints | |
2126 | * in the program or it'll die when it hits one. For this | |
2127 | * to work, it may be necessary for the process to have been | |
2128 | * previously attached. It *might* work if the program was | |
2129 | * started via the normal ptrace (PTRACE_TRACEME). | |
2130 | */ | |
2131 | ||
2132 | static void | |
fba45db2 | 2133 | detach_command (char *args, int from_tty) |
c906108c | 2134 | { |
1f5d0fc9 | 2135 | dont_repeat (); /* Not for the faint of heart. */ |
c906108c | 2136 | target_detach (args, from_tty); |
e85a822c | 2137 | no_shared_libraries (NULL, from_tty); |
a0ef4274 | 2138 | init_thread_list (); |
9a4105ab AC |
2139 | if (deprecated_detach_hook) |
2140 | deprecated_detach_hook (); | |
c906108c SS |
2141 | } |
2142 | ||
6ad8ae5c DJ |
2143 | /* Disconnect from the current target without resuming it (leaving it |
2144 | waiting for a debugger). | |
2145 | ||
2146 | We'd better not have left any breakpoints in the program or the | |
2147 | next debugger will get confused. Currently only supported for some | |
2148 | remote targets, since the normal attach mechanisms don't work on | |
2149 | stopped processes on some native platforms (e.g. GNU/Linux). */ | |
2150 | ||
2151 | static void | |
2152 | disconnect_command (char *args, int from_tty) | |
2153 | { | |
2154 | dont_repeat (); /* Not for the faint of heart */ | |
2155 | target_disconnect (args, from_tty); | |
e85a822c | 2156 | no_shared_libraries (NULL, from_tty); |
a0ef4274 | 2157 | init_thread_list (); |
9a4105ab AC |
2158 | if (deprecated_detach_hook) |
2159 | deprecated_detach_hook (); | |
6ad8ae5c DJ |
2160 | } |
2161 | ||
77ebaa5a VP |
2162 | void |
2163 | interrupt_target_1 (int all_threads) | |
2164 | { | |
2165 | ptid_t ptid; | |
2166 | if (all_threads) | |
2167 | ptid = minus_one_ptid; | |
2168 | else | |
2169 | ptid = inferior_ptid; | |
2170 | target_stop (ptid); | |
2171 | } | |
2172 | ||
43ff13b4 | 2173 | /* Stop the execution of the target while running in async mode, in |
8cae4b3f PA |
2174 | the backgound. In all-stop, stop the whole process. In non-stop |
2175 | mode, stop the current thread only by default, or stop all threads | |
2176 | if the `-a' switch is used. */ | |
2177 | ||
2178 | /* interrupt [-a] */ | |
8b93c638 | 2179 | void |
fba45db2 | 2180 | interrupt_target_command (char *args, int from_tty) |
43ff13b4 | 2181 | { |
362646f5 | 2182 | if (target_can_async_p ()) |
43ff13b4 | 2183 | { |
8cae4b3f PA |
2184 | int all_threads = 0; |
2185 | ||
c5aa993b | 2186 | dont_repeat (); /* Not for the faint of heart */ |
94cc34af | 2187 | |
8cae4b3f PA |
2188 | if (args != NULL |
2189 | && strncmp (args, "-a", sizeof ("-a") - 1) == 0) | |
2190 | all_threads = 1; | |
2191 | ||
2192 | if (!non_stop && all_threads) | |
2193 | error (_("-a is meaningless in all-stop mode.")); | |
2194 | ||
77ebaa5a | 2195 | interrupt_target_1 (all_threads); |
43ff13b4 JM |
2196 | } |
2197 | } | |
2198 | ||
c906108c | 2199 | static void |
23e3a7ac AC |
2200 | print_float_info (struct gdbarch *gdbarch, struct ui_file *file, |
2201 | struct frame_info *frame, const char *args) | |
c906108c | 2202 | { |
23e3a7ac AC |
2203 | if (gdbarch_print_float_info_p (gdbarch)) |
2204 | gdbarch_print_float_info (gdbarch, file, frame, args); | |
2205 | else | |
2206 | { | |
23e3a7ac AC |
2207 | int regnum; |
2208 | int printed_something = 0; | |
ab4327e0 | 2209 | |
f57d151a | 2210 | for (regnum = 0; |
a4bd449d UW |
2211 | regnum < gdbarch_num_regs (gdbarch) |
2212 | + gdbarch_num_pseudo_regs (gdbarch); | |
f57d151a | 2213 | regnum++) |
23e3a7ac | 2214 | { |
f9418c0f | 2215 | if (gdbarch_register_reggroup_p (gdbarch, regnum, float_reggroup)) |
23e3a7ac AC |
2216 | { |
2217 | printed_something = 1; | |
23e3a7ac | 2218 | gdbarch_print_registers_info (gdbarch, file, frame, regnum, 1); |
23e3a7ac AC |
2219 | } |
2220 | } | |
2221 | if (!printed_something) | |
2222 | fprintf_filtered (file, "\ | |
2223 | No floating-point info available for this processor.\n"); | |
23e3a7ac AC |
2224 | } |
2225 | } | |
2226 | ||
2227 | static void | |
2228 | float_info (char *args, int from_tty) | |
2229 | { | |
206415a3 DJ |
2230 | if (!target_has_registers) |
2231 | error (_("The program has no registers now.")); | |
2232 | ||
1f5d0fc9 | 2233 | print_float_info (current_gdbarch, gdb_stdout, |
206415a3 | 2234 | get_selected_frame (NULL), args); |
c906108c SS |
2235 | } |
2236 | \f | |
c906108c | 2237 | static void |
fba45db2 | 2238 | unset_command (char *args, int from_tty) |
c906108c | 2239 | { |
a3f17187 AC |
2240 | printf_filtered (_("\ |
2241 | \"unset\" must be followed by the name of an unset subcommand.\n")); | |
c906108c SS |
2242 | help_list (unsetlist, "unset ", -1, gdb_stdout); |
2243 | } | |
2244 | ||
2245 | void | |
fba45db2 | 2246 | _initialize_infcmd (void) |
c906108c | 2247 | { |
3cb3b8df BR |
2248 | struct cmd_list_element *c = NULL; |
2249 | ||
2250 | /* add the filename of the terminal connected to inferior I/O */ | |
2251 | add_setshow_filename_cmd ("inferior-tty", class_run, | |
2252 | &inferior_io_terminal, _("\ | |
2253 | Set terminal for future runs of program being debugged."), _("\ | |
2254 | Show terminal for future runs of program being debugged."), _("\ | |
2255 | Usage: set inferior-tty /dev/pts/1"), NULL, NULL, &setlist, &showlist); | |
2256 | add_com_alias ("tty", "set inferior-tty", class_alias, 0); | |
c906108c | 2257 | |
b4b4ac0b AC |
2258 | add_setshow_optional_filename_cmd ("args", class_run, |
2259 | &inferior_args, _("\ | |
2260 | Set argument list to give program being debugged when it is started."), _("\ | |
2261 | Show argument list to give program being debugged when it is started."), _("\ | |
2262 | Follow this command with any number of args, to be passed to the program."), | |
2263 | notice_args_set, | |
2264 | notice_args_read, | |
2265 | &setlist, &showlist); | |
c906108c | 2266 | |
1a966eab AC |
2267 | c = add_cmd ("environment", no_class, environment_info, _("\ |
2268 | The environment to give the program, or one variable's value.\n\ | |
c906108c SS |
2269 | With an argument VAR, prints the value of environment variable VAR to\n\ |
2270 | give the program being debugged. With no arguments, prints the entire\n\ | |
1a966eab | 2271 | environment to be given to the program."), &showlist); |
5ba2abeb | 2272 | set_cmd_completer (c, noop_completer); |
c906108c SS |
2273 | |
2274 | add_prefix_cmd ("unset", no_class, unset_command, | |
1bedd215 | 2275 | _("Complement to certain \"set\" commands."), |
c906108c | 2276 | &unsetlist, "unset ", 0, &cmdlist); |
c5aa993b | 2277 | |
1a966eab AC |
2278 | c = add_cmd ("environment", class_run, unset_environment_command, _("\ |
2279 | Cancel environment variable VAR for the program.\n\ | |
2280 | This does not affect the program until the next \"run\" command."), | |
c5aa993b | 2281 | &unsetlist); |
5ba2abeb | 2282 | set_cmd_completer (c, noop_completer); |
c906108c | 2283 | |
1a966eab AC |
2284 | c = add_cmd ("environment", class_run, set_environment_command, _("\ |
2285 | Set environment variable value to give the program.\n\ | |
c906108c SS |
2286 | Arguments are VAR VALUE where VAR is variable name and VALUE is value.\n\ |
2287 | VALUES of environment variables are uninterpreted strings.\n\ | |
1a966eab | 2288 | This does not affect the program until the next \"run\" command."), |
c5aa993b | 2289 | &setlist); |
5ba2abeb | 2290 | set_cmd_completer (c, noop_completer); |
c5aa993b | 2291 | |
1bedd215 AC |
2292 | c = add_com ("path", class_files, path_command, _("\ |
2293 | Add directory DIR(s) to beginning of search path for object files.\n\ | |
c906108c SS |
2294 | $cwd in the path means the current working directory.\n\ |
2295 | This path is equivalent to the $PATH shell variable. It is a list of\n\ | |
2296 | directories, separated by colons. These directories are searched to find\n\ | |
1bedd215 | 2297 | fully linked executable files and separately compiled object files as needed.")); |
5ba2abeb | 2298 | set_cmd_completer (c, filename_completer); |
c906108c | 2299 | |
1a966eab AC |
2300 | c = add_cmd ("paths", no_class, path_info, _("\ |
2301 | Current search path for finding object files.\n\ | |
c906108c SS |
2302 | $cwd in the path means the current working directory.\n\ |
2303 | This path is equivalent to the $PATH shell variable. It is a list of\n\ | |
2304 | directories, separated by colons. These directories are searched to find\n\ | |
1a966eab | 2305 | fully linked executable files and separately compiled object files as needed."), |
c906108c | 2306 | &showlist); |
5ba2abeb | 2307 | set_cmd_completer (c, noop_completer); |
c906108c | 2308 | |
1bedd215 AC |
2309 | add_com ("attach", class_run, attach_command, _("\ |
2310 | Attach to a process or file outside of GDB.\n\ | |
c906108c SS |
2311 | This command attaches to another target, of the same type as your last\n\ |
2312 | \"target\" command (\"info files\" will show your target stack).\n\ | |
2313 | The command may take as argument a process id or a device file.\n\ | |
2314 | For a process id, you must have permission to send the process a signal,\n\ | |
2315 | and it must have the same effective uid as the debugger.\n\ | |
2316 | When using \"attach\" with a process id, the debugger finds the\n\ | |
2317 | program running in the process, looking first in the current working\n\ | |
2318 | directory, or (if not found there) using the source file search path\n\ | |
2319 | (see the \"directory\" command). You can also use the \"file\" command\n\ | |
1bedd215 | 2320 | to specify the program, and to load its symbol table.")); |
c906108c | 2321 | |
f73adfeb | 2322 | add_prefix_cmd ("detach", class_run, detach_command, _("\ |
1bedd215 | 2323 | Detach a process or file previously attached.\n\ |
c906108c | 2324 | If a process, it is no longer traced, and it continues its execution. If\n\ |
f73adfeb AS |
2325 | you were debugging a file, the file is closed and gdb no longer accesses it."), |
2326 | &detachlist, "detach ", 0, &cmdlist); | |
c906108c | 2327 | |
1bedd215 AC |
2328 | add_com ("disconnect", class_run, disconnect_command, _("\ |
2329 | Disconnect from a target.\n\ | |
6ad8ae5c | 2330 | The target will wait for another debugger to connect. Not available for\n\ |
1bedd215 | 2331 | all targets.")); |
6ad8ae5c | 2332 | |
1bedd215 AC |
2333 | add_com ("signal", class_run, signal_command, _("\ |
2334 | Continue program giving it signal specified by the argument.\n\ | |
2335 | An argument of \"0\" means continue program without giving it a signal.")); | |
c906108c | 2336 | |
1bedd215 AC |
2337 | add_com ("stepi", class_run, stepi_command, _("\ |
2338 | Step one instruction exactly.\n\ | |
2339 | Argument N means do this N times (or till program stops for another reason).")); | |
c906108c SS |
2340 | add_com_alias ("si", "stepi", class_alias, 0); |
2341 | ||
1bedd215 AC |
2342 | add_com ("nexti", class_run, nexti_command, _("\ |
2343 | Step one instruction, but proceed through subroutine calls.\n\ | |
2344 | Argument N means do this N times (or till program stops for another reason).")); | |
c906108c SS |
2345 | add_com_alias ("ni", "nexti", class_alias, 0); |
2346 | ||
1bedd215 AC |
2347 | add_com ("finish", class_run, finish_command, _("\ |
2348 | Execute until selected stack frame returns.\n\ | |
2349 | Upon return, the value returned is printed and put in the value history.")); | |
0e479716 | 2350 | add_com_alias ("fin", "finish", class_run, 1); |
c906108c | 2351 | |
1bedd215 AC |
2352 | add_com ("next", class_run, next_command, _("\ |
2353 | Step program, proceeding through subroutine calls.\n\ | |
c906108c SS |
2354 | Like the \"step\" command as long as subroutine calls do not happen;\n\ |
2355 | when they do, the call is treated as one instruction.\n\ | |
1bedd215 | 2356 | Argument N means do this N times (or till program stops for another reason).")); |
c906108c SS |
2357 | add_com_alias ("n", "next", class_run, 1); |
2358 | if (xdb_commands) | |
c5aa993b | 2359 | add_com_alias ("S", "next", class_run, 1); |
c906108c | 2360 | |
1bedd215 AC |
2361 | add_com ("step", class_run, step_command, _("\ |
2362 | Step program until it reaches a different source line.\n\ | |
2363 | Argument N means do this N times (or till program stops for another reason).")); | |
c906108c SS |
2364 | add_com_alias ("s", "step", class_run, 1); |
2365 | ||
1bedd215 AC |
2366 | c = add_com ("until", class_run, until_command, _("\ |
2367 | Execute until the program reaches a source line greater than the current\n\ | |
2368 | or a specified location (same args as break command) within the current frame.")); | |
5ba2abeb | 2369 | set_cmd_completer (c, location_completer); |
c906108c | 2370 | add_com_alias ("u", "until", class_run, 1); |
c5aa993b | 2371 | |
1bedd215 AC |
2372 | c = add_com ("advance", class_run, advance_command, _("\ |
2373 | Continue the program up to the given location (same form as args for break command).\n\ | |
2374 | Execution will also stop upon exit from the current stack frame.")); | |
ae66c1fc EZ |
2375 | set_cmd_completer (c, location_completer); |
2376 | ||
1bedd215 AC |
2377 | c = add_com ("jump", class_run, jump_command, _("\ |
2378 | Continue program being debugged at specified line or address.\n\ | |
c906108c | 2379 | Give as argument either LINENUM or *ADDR, where ADDR is an expression\n\ |
1bedd215 | 2380 | for an address to start at.")); |
5ba2abeb | 2381 | set_cmd_completer (c, location_completer); |
c906108c | 2382 | |
b83266a0 | 2383 | if (xdb_commands) |
c94fdfd0 | 2384 | { |
1bedd215 AC |
2385 | c = add_com ("go", class_run, go_command, _("\ |
2386 | Usage: go <location>\n\ | |
c906108c SS |
2387 | Continue program being debugged, stopping at specified line or \n\ |
2388 | address.\n\ | |
2389 | Give as argument either LINENUM or *ADDR, where ADDR is an \n\ | |
2390 | expression for an address to start at.\n\ | |
1bedd215 | 2391 | This command is a combination of tbreak and jump.")); |
5ba2abeb | 2392 | set_cmd_completer (c, location_completer); |
c94fdfd0 | 2393 | } |
b83266a0 | 2394 | |
c906108c | 2395 | if (xdb_commands) |
c5aa993b | 2396 | add_com_alias ("g", "go", class_run, 1); |
c906108c | 2397 | |
8cae4b3f | 2398 | c = add_com ("continue", class_run, continue_command, _("\ |
1bedd215 | 2399 | Continue program being debugged, after signal or breakpoint.\n\ |
c906108c SS |
2400 | If proceeding from breakpoint, a number N may be used as an argument,\n\ |
2401 | which means to set the ignore count of that breakpoint to N - 1 (so that\n\ | |
8cae4b3f PA |
2402 | the breakpoint won't break until the Nth time it is reached).\n\ |
2403 | \n\ | |
2404 | If non-stop mode is enabled, continue only the current thread,\n\ | |
2405 | otherwise all the threads in the program are continued. To \n\ | |
2406 | continue all stopped threads in non-stop mode, use the -a option.\n\ | |
2407 | Specifying -a and an ignore count simultaneously is an error.")); | |
c906108c SS |
2408 | add_com_alias ("c", "cont", class_run, 1); |
2409 | add_com_alias ("fg", "cont", class_run, 1); | |
2410 | ||
1bedd215 AC |
2411 | c = add_com ("run", class_run, run_command, _("\ |
2412 | Start debugged program. You may specify arguments to give it.\n\ | |
c906108c SS |
2413 | Args may include \"*\", or \"[...]\"; they are expanded using \"sh\".\n\ |
2414 | Input and output redirection with \">\", \"<\", or \">>\" are also allowed.\n\n\ | |
2415 | With no arguments, uses arguments last specified (with \"run\" or \"set args\").\n\ | |
2416 | To cancel previous arguments and run with no arguments,\n\ | |
1bedd215 | 2417 | use \"set args\" without arguments.")); |
5ba2abeb | 2418 | set_cmd_completer (c, filename_completer); |
c906108c SS |
2419 | add_com_alias ("r", "run", class_run, 1); |
2420 | if (xdb_commands) | |
2421 | add_com ("R", class_run, run_no_args_command, | |
1bedd215 | 2422 | _("Start debugged program with no arguments.")); |
c906108c | 2423 | |
1bedd215 | 2424 | c = add_com ("start", class_run, start_command, _("\ |
a4d5f2e0 JB |
2425 | Run the debugged program until the beginning of the main procedure.\n\ |
2426 | You may specify arguments to give to your program, just as with the\n\ | |
1bedd215 | 2427 | \"run\" command.")); |
a4d5f2e0 JB |
2428 | set_cmd_completer (c, filename_completer); |
2429 | ||
700b53b1 | 2430 | c = add_com ("interrupt", class_run, interrupt_target_command, |
8cae4b3f PA |
2431 | _("Interrupt the execution of the debugged program.\n\ |
2432 | If non-stop mode is enabled, interrupt only the current thread,\n\ | |
2433 | otherwise all the threads in the program are stopped. To \n\ | |
2434 | interrupt all running threads in non-stop mode, use the -a option.")); | |
43ff13b4 | 2435 | |
1bedd215 AC |
2436 | add_info ("registers", nofp_registers_info, _("\ |
2437 | List of integer registers and their contents, for selected stack frame.\n\ | |
2438 | Register name as argument means describe only that register.")); | |
7194c49b | 2439 | add_info_alias ("r", "registers", 1); |
c906108c SS |
2440 | |
2441 | if (xdb_commands) | |
1bedd215 AC |
2442 | add_com ("lr", class_info, nofp_registers_info, _("\ |
2443 | List of integer registers and their contents, for selected stack frame.\n\ | |
2444 | Register name as argument means describe only that register.")); | |
2445 | add_info ("all-registers", all_registers_info, _("\ | |
2446 | List of all registers and their contents, for selected stack frame.\n\ | |
2447 | Register name as argument means describe only that register.")); | |
c906108c SS |
2448 | |
2449 | add_info ("program", program_info, | |
1bedd215 | 2450 | _("Execution status of the program.")); |
c906108c SS |
2451 | |
2452 | add_info ("float", float_info, | |
1bedd215 | 2453 | _("Print the status of the floating point unit\n")); |
c906108c | 2454 | |
e76f1f2e | 2455 | add_info ("vector", vector_info, |
1bedd215 | 2456 | _("Print the status of the vector unit\n")); |
e76f1f2e | 2457 | |
c906108c SS |
2458 | inferior_environ = make_environ (); |
2459 | init_environ (inferior_environ); | |
2460 | } |