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 | ||
158 | /* Chain containing status of breakpoint(s) that we have stopped at. */ | |
159 | ||
160 | bpstat stop_bpstat; | |
161 | ||
162 | /* Flag indicating that a command has proceeded the inferior past the | |
163 | current breakpoint. */ | |
164 | ||
165 | int breakpoint_proceeded; | |
166 | ||
167 | /* Nonzero if stopped due to a step command. */ | |
168 | ||
169 | int stop_step; | |
170 | ||
171 | /* Nonzero if stopped due to completion of a stack dummy routine. */ | |
172 | ||
173 | int stop_stack_dummy; | |
174 | ||
175 | /* Nonzero if stopped due to a random (unexpected) signal in inferior | |
176 | process. */ | |
177 | ||
178 | int stopped_by_random_signal; | |
179 | ||
180 | /* Range to single step within. | |
181 | If this is nonzero, respond to a single-step signal | |
182 | by continuing to step if the pc is in this range. */ | |
183 | ||
c5aa993b JM |
184 | CORE_ADDR step_range_start; /* Inclusive */ |
185 | CORE_ADDR step_range_end; /* Exclusive */ | |
c906108c SS |
186 | |
187 | /* Stack frame address as of when stepping command was issued. | |
188 | This is how we know when we step into a subroutine call, | |
189 | and how to set the frame for the breakpoint used to step out. */ | |
190 | ||
aa0cd9c1 | 191 | struct frame_id step_frame_id; |
c906108c | 192 | |
5fbbeb29 | 193 | enum step_over_calls_kind step_over_calls; |
c906108c SS |
194 | |
195 | /* If stepping, nonzero means step count is > 1 | |
196 | so don't print frame next time inferior stops | |
197 | if it stops due to stepping. */ | |
198 | ||
199 | int step_multi; | |
200 | ||
201 | /* Environment to use for running inferior, | |
202 | in format described in environ.h. */ | |
203 | ||
1bf1958d | 204 | struct gdb_environ *inferior_environ; |
f5871ec0 | 205 | |
8f6a8e84 VP |
206 | /* When set, no calls to target_resumed observer will be made. */ |
207 | int suppress_resume_observer = 0; | |
208 | /* When set, normal_stop will not call the normal_stop observer. */ | |
209 | int suppress_stop_observer = 0; | |
c906108c | 210 | \f |
07091751 FN |
211 | /* Accessor routines. */ |
212 | ||
3cb3b8df BR |
213 | void |
214 | set_inferior_io_terminal (const char *terminal_name) | |
215 | { | |
216 | if (inferior_io_terminal) | |
217 | xfree (inferior_io_terminal); | |
218 | ||
219 | if (!terminal_name) | |
220 | inferior_io_terminal = NULL; | |
221 | else | |
222 | inferior_io_terminal = savestring (terminal_name, strlen (terminal_name)); | |
223 | } | |
224 | ||
225 | const char * | |
226 | get_inferior_io_terminal (void) | |
227 | { | |
228 | return inferior_io_terminal; | |
229 | } | |
230 | ||
07091751 FN |
231 | char * |
232 | get_inferior_args (void) | |
233 | { | |
552c04a7 TT |
234 | if (inferior_argc != 0) |
235 | { | |
236 | char *n, *old; | |
237 | ||
238 | n = gdbarch_construct_inferior_arguments (current_gdbarch, | |
239 | inferior_argc, inferior_argv); | |
240 | old = set_inferior_args (n); | |
241 | xfree (old); | |
242 | } | |
243 | ||
244 | if (inferior_args == NULL) | |
245 | inferior_args = xstrdup (""); | |
246 | ||
07091751 FN |
247 | return inferior_args; |
248 | } | |
249 | ||
250 | char * | |
251 | set_inferior_args (char *newargs) | |
252 | { | |
253 | char *saved_args = inferior_args; | |
254 | ||
255 | inferior_args = newargs; | |
552c04a7 TT |
256 | inferior_argc = 0; |
257 | inferior_argv = 0; | |
07091751 FN |
258 | |
259 | return saved_args; | |
260 | } | |
c5aa993b | 261 | |
552c04a7 TT |
262 | void |
263 | set_inferior_args_vector (int argc, char **argv) | |
264 | { | |
265 | inferior_argc = argc; | |
266 | inferior_argv = argv; | |
267 | } | |
268 | ||
269 | /* Notice when `set args' is run. */ | |
270 | static void | |
271 | notice_args_set (char *args, int from_tty, struct cmd_list_element *c) | |
272 | { | |
273 | inferior_argc = 0; | |
274 | inferior_argv = 0; | |
275 | } | |
276 | ||
277 | /* Notice when `show args' is run. */ | |
278 | static void | |
b4b4ac0b AC |
279 | notice_args_read (struct ui_file *file, int from_tty, |
280 | struct cmd_list_element *c, const char *value) | |
552c04a7 | 281 | { |
258c00cc TT |
282 | /* Note that we ignore the passed-in value in favor of computing it |
283 | directly. */ | |
284 | deprecated_show_value_hack (file, from_tty, c, get_inferior_args ()); | |
552c04a7 TT |
285 | } |
286 | ||
c2a727fa TT |
287 | \f |
288 | /* Compute command-line string given argument vector. This does the | |
289 | same shell processing as fork_inferior. */ | |
c2a727fa TT |
290 | char * |
291 | construct_inferior_arguments (struct gdbarch *gdbarch, int argc, char **argv) | |
292 | { | |
293 | char *result; | |
294 | ||
295 | if (STARTUP_WITH_SHELL) | |
296 | { | |
297 | /* This holds all the characters considered special to the | |
298 | typical Unix shells. We include `^' because the SunOS | |
299 | /bin/sh treats it as a synonym for `|'. */ | |
300 | char *special = "\"!#$&*()\\|[]{}<>?'\"`~^; \t\n"; | |
301 | int i; | |
302 | int length = 0; | |
303 | char *out, *cp; | |
304 | ||
305 | /* We over-compute the size. It shouldn't matter. */ | |
306 | for (i = 0; i < argc; ++i) | |
03c6228e | 307 | length += 2 * strlen (argv[i]) + 1 + 2 * (argv[i][0] == '\0'); |
c2a727fa TT |
308 | |
309 | result = (char *) xmalloc (length); | |
310 | out = result; | |
311 | ||
312 | for (i = 0; i < argc; ++i) | |
313 | { | |
314 | if (i > 0) | |
315 | *out++ = ' '; | |
316 | ||
03c6228e AS |
317 | /* Need to handle empty arguments specially. */ |
318 | if (argv[i][0] == '\0') | |
c2a727fa | 319 | { |
03c6228e AS |
320 | *out++ = '\''; |
321 | *out++ = '\''; | |
322 | } | |
323 | else | |
324 | { | |
325 | for (cp = argv[i]; *cp; ++cp) | |
326 | { | |
327 | if (strchr (special, *cp) != NULL) | |
328 | *out++ = '\\'; | |
329 | *out++ = *cp; | |
330 | } | |
c2a727fa TT |
331 | } |
332 | } | |
333 | *out = '\0'; | |
334 | } | |
335 | else | |
336 | { | |
337 | /* In this case we can't handle arguments that contain spaces, | |
338 | tabs, or newlines -- see breakup_args(). */ | |
339 | int i; | |
340 | int length = 0; | |
341 | ||
342 | for (i = 0; i < argc; ++i) | |
343 | { | |
344 | char *cp = strchr (argv[i], ' '); | |
345 | if (cp == NULL) | |
346 | cp = strchr (argv[i], '\t'); | |
347 | if (cp == NULL) | |
348 | cp = strchr (argv[i], '\n'); | |
349 | if (cp != NULL) | |
8a3fe4f8 | 350 | error (_("can't handle command-line argument containing whitespace")); |
c2a727fa TT |
351 | length += strlen (argv[i]) + 1; |
352 | } | |
353 | ||
354 | result = (char *) xmalloc (length); | |
355 | result[0] = '\0'; | |
356 | for (i = 0; i < argc; ++i) | |
357 | { | |
358 | if (i > 0) | |
359 | strcat (result, " "); | |
360 | strcat (result, argv[i]); | |
361 | } | |
362 | } | |
363 | ||
364 | return result; | |
365 | } | |
552c04a7 TT |
366 | \f |
367 | ||
43ff13b4 JM |
368 | /* This function detects whether or not a '&' character (indicating |
369 | background execution) has been added as *the last* of the arguments ARGS | |
370 | of a command. If it has, it removes it and returns 1. Otherwise it | |
371 | does nothing and returns 0. */ | |
c5aa993b | 372 | static int |
fba45db2 | 373 | strip_bg_char (char **args) |
43ff13b4 JM |
374 | { |
375 | char *p = NULL; | |
c5aa993b | 376 | |
9846de1b | 377 | p = strchr (*args, '&'); |
c5aa993b | 378 | |
9846de1b | 379 | if (p) |
43ff13b4 JM |
380 | { |
381 | if (p == (*args + strlen (*args) - 1)) | |
382 | { | |
c5aa993b | 383 | if (strlen (*args) > 1) |
43ff13b4 JM |
384 | { |
385 | do | |
386 | p--; | |
387 | while (*p == ' ' || *p == '\t'); | |
388 | *(p + 1) = '\0'; | |
389 | } | |
390 | else | |
391 | *args = 0; | |
392 | return 1; | |
393 | } | |
394 | } | |
395 | return 0; | |
396 | } | |
397 | ||
c906108c | 398 | void |
fba45db2 | 399 | tty_command (char *file, int from_tty) |
c906108c SS |
400 | { |
401 | if (file == 0) | |
e2e0b3e5 | 402 | error_no_arg (_("terminal name for running target process")); |
c906108c | 403 | |
3cb3b8df | 404 | set_inferior_io_terminal (file); |
c906108c SS |
405 | } |
406 | ||
281b533b DJ |
407 | /* Common actions to take after creating any sort of inferior, by any |
408 | means (running, attaching, connecting, et cetera). The target | |
409 | should be stopped. */ | |
410 | ||
411 | void | |
412 | post_create_inferior (struct target_ops *target, int from_tty) | |
413 | { | |
b79599ff DP |
414 | /* Be sure we own the terminal in case write operations are performed. */ |
415 | target_terminal_ours (); | |
416 | ||
424163ea DJ |
417 | /* If the target hasn't taken care of this already, do it now. |
418 | Targets which need to access registers during to_open, | |
419 | to_create_inferior, or to_attach should do it earlier; but many | |
420 | don't need to. */ | |
421 | target_find_description (); | |
422 | ||
9353355f DJ |
423 | if (exec_bfd) |
424 | { | |
425 | /* Sometimes the platform-specific hook loads initial shared | |
426 | libraries, and sometimes it doesn't. Try to do so first, so | |
de1b3c3d PA |
427 | that we can add them with the correct value for FROM_TTY. |
428 | If we made all the inferior hook methods consistent, | |
429 | this call could be removed. */ | |
9353355f DJ |
430 | #ifdef SOLIB_ADD |
431 | SOLIB_ADD (NULL, from_tty, target, auto_solib_add); | |
432 | #else | |
433 | solib_add (NULL, from_tty, target, auto_solib_add); | |
434 | #endif | |
435 | ||
436 | /* Create the hooks to handle shared library load and unload | |
437 | events. */ | |
438 | #ifdef SOLIB_CREATE_INFERIOR_HOOK | |
37706b70 | 439 | SOLIB_CREATE_INFERIOR_HOOK (PIDGET (inferior_ptid)); |
9353355f DJ |
440 | #else |
441 | solib_create_inferior_hook (); | |
442 | #endif | |
9353355f DJ |
443 | } |
444 | ||
281b533b DJ |
445 | observer_notify_inferior_created (target, from_tty); |
446 | } | |
447 | ||
a4d5f2e0 JB |
448 | /* Kill the inferior if already running. This function is designed |
449 | to be called when we are about to start the execution of the program | |
450 | from the beginning. Ask the user to confirm that he wants to restart | |
451 | the program being debugged when FROM_TTY is non-null. */ | |
c906108c | 452 | |
8edfe269 | 453 | static void |
a4d5f2e0 JB |
454 | kill_if_already_running (int from_tty) |
455 | { | |
39f77062 | 456 | if (! ptid_equal (inferior_ptid, null_ptid) && target_has_execution) |
c906108c | 457 | { |
8edfe269 DJ |
458 | /* Bail out before killing the program if we will not be able to |
459 | restart it. */ | |
460 | target_require_runnable (); | |
461 | ||
adf40b2e JM |
462 | if (from_tty |
463 | && !query ("The program being debugged has been started already.\n\ | |
c906108c | 464 | Start it from the beginning? ")) |
8a3fe4f8 | 465 | error (_("Program not restarted.")); |
c906108c | 466 | target_kill (); |
e85a822c | 467 | no_shared_libraries (NULL, from_tty); |
c906108c SS |
468 | init_wait_for_inferior (); |
469 | } | |
a4d5f2e0 JB |
470 | } |
471 | ||
f67a969f JB |
472 | /* Implement the "run" command. If TBREAK_AT_MAIN is set, then insert |
473 | a temporary breakpoint at the begining of the main program before | |
474 | running the program. */ | |
475 | ||
a4d5f2e0 | 476 | static void |
f67a969f | 477 | run_command_1 (char *args, int from_tty, int tbreak_at_main) |
a4d5f2e0 JB |
478 | { |
479 | char *exec_file; | |
c906108c | 480 | |
a4d5f2e0 JB |
481 | dont_repeat (); |
482 | ||
483 | kill_if_already_running (from_tty); | |
c906108c SS |
484 | clear_breakpoint_hit_counts (); |
485 | ||
fd79ecee DJ |
486 | /* Clean up any leftovers from other runs. Some other things from |
487 | this function should probably be moved into target_pre_inferior. */ | |
488 | target_pre_inferior (from_tty); | |
489 | ||
c906108c SS |
490 | /* Purge old solib objfiles. */ |
491 | objfile_purge_solibs (); | |
492 | ||
615b9dba | 493 | clear_solib (); |
c906108c | 494 | |
39ad761d JB |
495 | /* The comment here used to read, "The exec file is re-read every |
496 | time we do a generic_mourn_inferior, so we just have to worry | |
497 | about the symbol file." The `generic_mourn_inferior' function | |
498 | gets called whenever the program exits. However, suppose the | |
499 | program exits, and *then* the executable file changes? We need | |
500 | to check again here. Since reopen_exec_file doesn't do anything | |
501 | if the timestamp hasn't changed, I don't see the harm. */ | |
502 | reopen_exec_file (); | |
c906108c SS |
503 | reread_symbols (); |
504 | ||
f67a969f JB |
505 | /* Insert the temporary breakpoint if a location was specified. */ |
506 | if (tbreak_at_main) | |
507 | tbreak_command (main_name (), 0); | |
508 | ||
39ad761d JB |
509 | exec_file = (char *) get_exec_file (0); |
510 | ||
c906108c SS |
511 | /* We keep symbols from add-symbol-file, on the grounds that the |
512 | user might want to add some symbols before running the program | |
513 | (right?). But sometimes (dynamic loading where the user manually | |
514 | introduces the new symbols with add-symbol-file), the code which | |
515 | the symbols describe does not persist between runs. Currently | |
516 | the user has to manually nuke all symbols between runs if they | |
517 | want them to go away (PR 2207). This is probably reasonable. */ | |
518 | ||
43ff13b4 | 519 | if (!args) |
6426a772 | 520 | { |
362646f5 | 521 | if (target_can_async_p ()) |
6426a772 JM |
522 | async_disable_stdin (); |
523 | } | |
43ff13b4 | 524 | else |
c906108c | 525 | { |
43ff13b4 JM |
526 | int async_exec = strip_bg_char (&args); |
527 | ||
528 | /* If we get a request for running in the bg but the target | |
529 | doesn't support it, error out. */ | |
362646f5 | 530 | if (async_exec && !target_can_async_p ()) |
8a3fe4f8 | 531 | error (_("Asynchronous execution not supported on this target.")); |
43ff13b4 JM |
532 | |
533 | /* If we don't get a request of running in the bg, then we need | |
c5aa993b | 534 | to simulate synchronous (fg) execution. */ |
362646f5 | 535 | if (!async_exec && target_can_async_p ()) |
43ff13b4 JM |
536 | { |
537 | /* Simulate synchronous execution */ | |
6426a772 | 538 | async_disable_stdin (); |
43ff13b4 JM |
539 | } |
540 | ||
541 | /* If there were other args, beside '&', process them. */ | |
542 | if (args) | |
543 | { | |
07091751 FN |
544 | char *old_args = set_inferior_args (xstrdup (args)); |
545 | xfree (old_args); | |
43ff13b4 | 546 | } |
c906108c SS |
547 | } |
548 | ||
549 | if (from_tty) | |
550 | { | |
8b93c638 JM |
551 | ui_out_field_string (uiout, NULL, "Starting program"); |
552 | ui_out_text (uiout, ": "); | |
553 | if (exec_file) | |
554 | ui_out_field_string (uiout, "execfile", exec_file); | |
555 | ui_out_spaces (uiout, 1); | |
552c04a7 TT |
556 | /* We call get_inferior_args() because we might need to compute |
557 | the value now. */ | |
558 | ui_out_field_string (uiout, "infargs", get_inferior_args ()); | |
8b93c638 JM |
559 | ui_out_text (uiout, "\n"); |
560 | ui_out_flush (uiout); | |
c906108c SS |
561 | } |
562 | ||
552c04a7 TT |
563 | /* We call get_inferior_args() because we might need to compute |
564 | the value now. */ | |
565 | target_create_inferior (exec_file, get_inferior_args (), | |
c27cda74 | 566 | environ_vector (inferior_environ), from_tty); |
281b533b | 567 | |
de1b3c3d PA |
568 | /* Pass zero for FROM_TTY, because at this point the "run" command |
569 | has done its thing; now we are setting up the running program. */ | |
570 | post_create_inferior (¤t_target, 0); | |
281b533b DJ |
571 | |
572 | /* Start the target running. */ | |
573 | proceed ((CORE_ADDR) -1, TARGET_SIGNAL_0, 0); | |
c906108c SS |
574 | } |
575 | ||
576 | ||
f67a969f JB |
577 | static void |
578 | run_command (char *args, int from_tty) | |
579 | { | |
580 | run_command_1 (args, from_tty, 0); | |
581 | } | |
582 | ||
c906108c | 583 | static void |
fba45db2 | 584 | run_no_args_command (char *args, int from_tty) |
c906108c | 585 | { |
07091751 FN |
586 | char *old_args = set_inferior_args (xstrdup ("")); |
587 | xfree (old_args); | |
c906108c | 588 | } |
c906108c | 589 | \f |
c5aa993b | 590 | |
a4d5f2e0 JB |
591 | /* Start the execution of the program up until the beginning of the main |
592 | program. */ | |
593 | ||
594 | static void | |
595 | start_command (char *args, int from_tty) | |
596 | { | |
597 | /* Some languages such as Ada need to search inside the program | |
598 | minimal symbols for the location where to put the temporary | |
599 | breakpoint before starting. */ | |
600 | if (!have_minimal_symbols ()) | |
8a3fe4f8 | 601 | error (_("No symbol table loaded. Use the \"file\" command.")); |
a4d5f2e0 | 602 | |
f67a969f JB |
603 | /* Run the program until reaching the main procedure... */ |
604 | run_command_1 (args, from_tty, 1); | |
a4d5f2e0 JB |
605 | } |
606 | ||
8cae4b3f PA |
607 | static int |
608 | proceed_thread_callback (struct thread_info *thread, void *arg) | |
609 | { | |
4f8d22e3 | 610 | if (!is_stopped (thread->ptid)) |
8cae4b3f PA |
611 | return 0; |
612 | ||
613 | context_switch_to (thread->ptid); | |
614 | clear_proceed_status (); | |
615 | proceed ((CORE_ADDR) -1, TARGET_SIGNAL_DEFAULT, 0); | |
616 | return 0; | |
617 | } | |
618 | ||
77ebaa5a VP |
619 | void |
620 | continue_1 (int all_threads) | |
621 | { | |
622 | if (non_stop && all_threads) | |
623 | { | |
624 | /* Don't error out if the current thread is running, because | |
625 | there may be other stopped threads. */ | |
626 | struct cleanup *old_chain; | |
627 | ||
628 | /* Backup current thread and selected frame. */ | |
629 | old_chain = make_cleanup_restore_current_thread (); | |
630 | ||
631 | iterate_over_threads (proceed_thread_callback, NULL); | |
632 | ||
633 | /* Restore selected ptid. */ | |
634 | do_cleanups (old_chain); | |
635 | } | |
636 | else | |
637 | { | |
638 | ensure_not_running (); | |
639 | clear_proceed_status (); | |
640 | proceed ((CORE_ADDR) -1, TARGET_SIGNAL_DEFAULT, 0); | |
641 | } | |
642 | } | |
643 | ||
8cae4b3f | 644 | /* continue [-a] [proceed-count] [&] */ |
c906108c | 645 | void |
8cae4b3f | 646 | continue_command (char *args, int from_tty) |
c906108c | 647 | { |
c5aa993b | 648 | int async_exec = 0; |
8cae4b3f | 649 | int all_threads = 0; |
c906108c SS |
650 | ERROR_NO_INFERIOR; |
651 | ||
43ff13b4 | 652 | /* Find out whether we must run in the background. */ |
8cae4b3f PA |
653 | if (args != NULL) |
654 | async_exec = strip_bg_char (&args); | |
43ff13b4 JM |
655 | |
656 | /* If we must run in the background, but the target can't do it, | |
657 | error out. */ | |
362646f5 | 658 | if (async_exec && !target_can_async_p ()) |
8a3fe4f8 | 659 | error (_("Asynchronous execution not supported on this target.")); |
43ff13b4 JM |
660 | |
661 | /* If we are not asked to run in the bg, then prepare to run in the | |
662 | foreground, synchronously. */ | |
362646f5 | 663 | if (!async_exec && target_can_async_p ()) |
c5aa993b | 664 | { |
43ff13b4 | 665 | /* Simulate synchronous execution */ |
6426a772 | 666 | async_disable_stdin (); |
43ff13b4 | 667 | } |
c906108c | 668 | |
8cae4b3f PA |
669 | if (args != NULL) |
670 | { | |
671 | if (strncmp (args, "-a", sizeof ("-a") - 1) == 0) | |
672 | { | |
673 | all_threads = 1; | |
674 | args += sizeof ("-a") - 1; | |
675 | if (*args == '\0') | |
676 | args = NULL; | |
677 | } | |
678 | } | |
679 | ||
680 | if (!non_stop && all_threads) | |
681 | error (_("`-a' is meaningless in all-stop mode.")); | |
682 | ||
683 | if (args != NULL && all_threads) | |
684 | error (_("\ | |
685 | Can't resume all threads and specify proceed count simultaneously.")); | |
686 | ||
687 | /* If we have an argument left, set proceed count of breakpoint we | |
688 | stopped at. */ | |
689 | if (args != NULL) | |
c906108c SS |
690 | { |
691 | bpstat bs = stop_bpstat; | |
8671a17b PA |
692 | int num, stat; |
693 | int stopped = 0; | |
694 | ||
695 | while ((stat = bpstat_num (&bs, &num)) != 0) | |
696 | if (stat > 0) | |
697 | { | |
698 | set_ignore_count (num, | |
8cae4b3f | 699 | parse_and_eval_long (args) - 1, |
8671a17b PA |
700 | from_tty); |
701 | /* set_ignore_count prints a message ending with a period. | |
702 | So print two spaces before "Continuing.". */ | |
703 | if (from_tty) | |
704 | printf_filtered (" "); | |
705 | stopped = 1; | |
706 | } | |
707 | ||
708 | if (!stopped && from_tty) | |
c906108c SS |
709 | { |
710 | printf_filtered | |
711 | ("Not stopped at any breakpoint; argument ignored.\n"); | |
712 | } | |
c906108c SS |
713 | } |
714 | ||
715 | if (from_tty) | |
a3f17187 | 716 | printf_filtered (_("Continuing.\n")); |
c906108c | 717 | |
77ebaa5a | 718 | continue_1 (all_threads); |
c906108c SS |
719 | } |
720 | \f | |
721 | /* Step until outside of current statement. */ | |
722 | ||
c906108c | 723 | static void |
fba45db2 | 724 | step_command (char *count_string, int from_tty) |
c906108c SS |
725 | { |
726 | step_1 (0, 0, count_string); | |
727 | } | |
728 | ||
729 | /* Likewise, but skip over subroutine calls as if single instructions. */ | |
730 | ||
c906108c | 731 | static void |
fba45db2 | 732 | next_command (char *count_string, int from_tty) |
c906108c SS |
733 | { |
734 | step_1 (1, 0, count_string); | |
735 | } | |
736 | ||
737 | /* Likewise, but step only one instruction. */ | |
738 | ||
c906108c | 739 | void |
fba45db2 | 740 | stepi_command (char *count_string, int from_tty) |
c906108c SS |
741 | { |
742 | step_1 (0, 1, count_string); | |
743 | } | |
744 | ||
c906108c | 745 | void |
fba45db2 | 746 | nexti_command (char *count_string, int from_tty) |
c906108c SS |
747 | { |
748 | step_1 (1, 1, count_string); | |
749 | } | |
750 | ||
74b7792f | 751 | static void |
611c83ae | 752 | delete_longjmp_breakpoint_cleanup (void *arg) |
74b7792f | 753 | { |
611c83ae PA |
754 | int thread = * (int *) arg; |
755 | delete_longjmp_breakpoint (thread); | |
74b7792f AC |
756 | } |
757 | ||
c906108c | 758 | static void |
fba45db2 | 759 | step_1 (int skip_subroutines, int single_inst, char *count_string) |
c906108c | 760 | { |
52f0bd74 | 761 | int count = 1; |
c906108c | 762 | struct frame_info *frame; |
f107f563 | 763 | struct cleanup *cleanups = make_cleanup (null_cleanup, NULL); |
43ff13b4 | 764 | int async_exec = 0; |
b3dc826b | 765 | int thread = -1; |
c5aa993b | 766 | |
c906108c | 767 | ERROR_NO_INFERIOR; |
94cc34af | 768 | ensure_not_running (); |
43ff13b4 JM |
769 | |
770 | if (count_string) | |
771 | async_exec = strip_bg_char (&count_string); | |
c5aa993b | 772 | |
43ff13b4 JM |
773 | /* If we get a request for running in the bg but the target |
774 | doesn't support it, error out. */ | |
362646f5 | 775 | if (async_exec && !target_can_async_p ()) |
8a3fe4f8 | 776 | error (_("Asynchronous execution not supported on this target.")); |
43ff13b4 JM |
777 | |
778 | /* If we don't get a request of running in the bg, then we need | |
779 | to simulate synchronous (fg) execution. */ | |
362646f5 | 780 | if (!async_exec && target_can_async_p ()) |
43ff13b4 JM |
781 | { |
782 | /* Simulate synchronous execution */ | |
6426a772 | 783 | async_disable_stdin (); |
43ff13b4 JM |
784 | } |
785 | ||
bb518678 | 786 | count = count_string ? parse_and_eval_long (count_string) : 1; |
c906108c | 787 | |
c5aa993b | 788 | if (!single_inst || skip_subroutines) /* leave si command alone */ |
c906108c | 789 | { |
611c83ae | 790 | if (in_thread_list (inferior_ptid)) |
b3dc826b | 791 | thread = pid_to_thread_id (inferior_ptid); |
611c83ae PA |
792 | |
793 | set_longjmp_breakpoint (); | |
794 | ||
b3dc826b | 795 | make_cleanup (delete_longjmp_breakpoint_cleanup, &thread); |
c2d11a7d JM |
796 | } |
797 | ||
798 | /* In synchronous case, all is well, just use the regular for loop. */ | |
362646f5 | 799 | if (!target_can_async_p ()) |
c2d11a7d JM |
800 | { |
801 | for (; count > 0; count--) | |
802 | { | |
803 | clear_proceed_status (); | |
804 | ||
805 | frame = get_current_frame (); | |
806 | if (!frame) /* Avoid coredump here. Why tho? */ | |
8a3fe4f8 | 807 | error (_("No current frame")); |
aa0cd9c1 | 808 | step_frame_id = get_frame_id (frame); |
c2d11a7d JM |
809 | |
810 | if (!single_inst) | |
811 | { | |
812 | find_pc_line_pc_range (stop_pc, &step_range_start, &step_range_end); | |
813 | if (step_range_end == 0) | |
814 | { | |
815 | char *name; | |
816 | if (find_pc_partial_function (stop_pc, &name, &step_range_start, | |
817 | &step_range_end) == 0) | |
8a3fe4f8 | 818 | error (_("Cannot find bounds of current function")); |
c2d11a7d JM |
819 | |
820 | target_terminal_ours (); | |
a3f17187 | 821 | printf_filtered (_("\ |
c2d11a7d | 822 | Single stepping until exit from function %s, \n\ |
a3f17187 | 823 | which has no line number information.\n"), name); |
c2d11a7d JM |
824 | } |
825 | } | |
826 | else | |
827 | { | |
828 | /* Say we are stepping, but stop after one insn whatever it does. */ | |
829 | step_range_start = step_range_end = 1; | |
830 | if (!skip_subroutines) | |
831 | /* It is stepi. | |
832 | Don't step over function calls, not even to functions lacking | |
833 | line numbers. */ | |
5fbbeb29 | 834 | step_over_calls = STEP_OVER_NONE; |
c2d11a7d JM |
835 | } |
836 | ||
837 | if (skip_subroutines) | |
5fbbeb29 | 838 | step_over_calls = STEP_OVER_ALL; |
c2d11a7d JM |
839 | |
840 | step_multi = (count > 1); | |
841 | proceed ((CORE_ADDR) -1, TARGET_SIGNAL_DEFAULT, 1); | |
842 | ||
843 | if (!stop_step) | |
844 | break; | |
c2d11a7d JM |
845 | } |
846 | ||
f107f563 | 847 | do_cleanups (cleanups); |
c2d11a7d JM |
848 | return; |
849 | } | |
850 | /* In case of asynchronous target things get complicated, do only | |
851 | one step for now, before returning control to the event loop. Let | |
852 | the continuation figure out how many other steps we need to do, | |
853 | and handle them one at the time, through step_once(). */ | |
854 | else | |
855 | { | |
b3dc826b | 856 | step_once (skip_subroutines, single_inst, count, thread); |
611c83ae | 857 | /* We are running, and the continuation is installed. It will |
f107f563 VP |
858 | disable the longjmp breakpoint as appropriate. */ |
859 | discard_cleanups (cleanups); | |
c906108c | 860 | } |
c2d11a7d | 861 | } |
c906108c | 862 | |
bfec99b2 PA |
863 | struct step_1_continuation_args |
864 | { | |
865 | int count; | |
866 | int skip_subroutines; | |
867 | int single_inst; | |
868 | int thread; | |
869 | }; | |
870 | ||
c2d11a7d JM |
871 | /* Called after we are done with one step operation, to check whether |
872 | we need to step again, before we print the prompt and return control | |
873 | to the user. If count is > 1, we will need to do one more call to | |
874 | proceed(), via step_once(). Basically it is like step_once and | |
875 | step_1_continuation are co-recursive. */ | |
876 | static void | |
604ead4a | 877 | step_1_continuation (void *args) |
c2d11a7d | 878 | { |
bfec99b2 | 879 | struct step_1_continuation_args *a = args; |
f13468d9 | 880 | |
604ead4a | 881 | if (!step_multi || !stop_step) |
f13468d9 | 882 | { |
604ead4a PA |
883 | /* If we stopped for some reason that is not stepping there are |
884 | no further steps to make. Cleanup. */ | |
bfec99b2 PA |
885 | if (!a->single_inst || a->skip_subroutines) |
886 | delete_longjmp_breakpoint (a->thread); | |
f13468d9 | 887 | step_multi = 0; |
f107f563 | 888 | } |
f13468d9 | 889 | else |
bfec99b2 | 890 | step_once (a->skip_subroutines, a->single_inst, a->count - 1, a->thread); |
c2d11a7d JM |
891 | } |
892 | ||
893 | /* Do just one step operation. If count >1 we will have to set up a | |
894 | continuation to be done after the target stops (after this one | |
895 | step). This is useful to implement the 'step n' kind of commands, in | |
896 | case of asynchronous targets. We had to split step_1 into two parts, | |
897 | one to be done before proceed() and one afterwards. This function is | |
898 | called in case of step n with n>1, after the first step operation has | |
899 | been completed.*/ | |
900 | static void | |
611c83ae | 901 | step_once (int skip_subroutines, int single_inst, int count, int thread) |
bfec99b2 | 902 | { |
0d06e24b | 903 | struct frame_info *frame; |
bfec99b2 | 904 | struct step_1_continuation_args *args; |
c2d11a7d JM |
905 | |
906 | if (count > 0) | |
c906108c SS |
907 | { |
908 | clear_proceed_status (); | |
909 | ||
910 | frame = get_current_frame (); | |
c5aa993b | 911 | if (!frame) /* Avoid coredump here. Why tho? */ |
8a3fe4f8 | 912 | error (_("No current frame")); |
aa0cd9c1 | 913 | step_frame_id = get_frame_id (frame); |
c906108c | 914 | |
c5aa993b | 915 | if (!single_inst) |
c906108c SS |
916 | { |
917 | find_pc_line_pc_range (stop_pc, &step_range_start, &step_range_end); | |
5fbbeb29 CF |
918 | |
919 | /* If we have no line info, switch to stepi mode. */ | |
920 | if (step_range_end == 0 && step_stop_if_no_debug) | |
921 | { | |
922 | step_range_start = step_range_end = 1; | |
923 | } | |
924 | else if (step_range_end == 0) | |
c906108c SS |
925 | { |
926 | char *name; | |
927 | if (find_pc_partial_function (stop_pc, &name, &step_range_start, | |
928 | &step_range_end) == 0) | |
8a3fe4f8 | 929 | error (_("Cannot find bounds of current function")); |
c906108c SS |
930 | |
931 | target_terminal_ours (); | |
a3f17187 | 932 | printf_filtered (_("\ |
c906108c | 933 | Single stepping until exit from function %s, \n\ |
a3f17187 | 934 | which has no line number information.\n"), name); |
c906108c SS |
935 | } |
936 | } | |
937 | else | |
938 | { | |
939 | /* Say we are stepping, but stop after one insn whatever it does. */ | |
940 | step_range_start = step_range_end = 1; | |
941 | if (!skip_subroutines) | |
942 | /* It is stepi. | |
943 | Don't step over function calls, not even to functions lacking | |
944 | line numbers. */ | |
5fbbeb29 | 945 | step_over_calls = STEP_OVER_NONE; |
c906108c SS |
946 | } |
947 | ||
948 | if (skip_subroutines) | |
5fbbeb29 | 949 | step_over_calls = STEP_OVER_ALL; |
c906108c SS |
950 | |
951 | step_multi = (count > 1); | |
f107f563 | 952 | proceed ((CORE_ADDR) -1, TARGET_SIGNAL_DEFAULT, 1); |
bfec99b2 PA |
953 | |
954 | args = xmalloc (sizeof (*args)); | |
955 | args->skip_subroutines = skip_subroutines; | |
956 | args->single_inst = single_inst; | |
957 | args->count = count; | |
958 | args->thread = thread; | |
604ead4a | 959 | add_intermediate_continuation (step_1_continuation, args, xfree); |
c906108c | 960 | } |
c906108c | 961 | } |
c2d11a7d | 962 | |
c906108c SS |
963 | \f |
964 | /* Continue program at specified address. */ | |
965 | ||
966 | static void | |
fba45db2 | 967 | jump_command (char *arg, int from_tty) |
c906108c | 968 | { |
52f0bd74 | 969 | CORE_ADDR addr; |
c906108c SS |
970 | struct symtabs_and_lines sals; |
971 | struct symtab_and_line sal; | |
972 | struct symbol *fn; | |
973 | struct symbol *sfn; | |
43ff13b4 | 974 | int async_exec = 0; |
c5aa993b | 975 | |
c906108c | 976 | ERROR_NO_INFERIOR; |
94cc34af | 977 | ensure_not_running (); |
c906108c | 978 | |
43ff13b4 JM |
979 | /* Find out whether we must run in the background. */ |
980 | if (arg != NULL) | |
981 | async_exec = strip_bg_char (&arg); | |
982 | ||
983 | /* If we must run in the background, but the target can't do it, | |
984 | error out. */ | |
362646f5 | 985 | if (async_exec && !target_can_async_p ()) |
8a3fe4f8 | 986 | error (_("Asynchronous execution not supported on this target.")); |
43ff13b4 | 987 | |
c906108c | 988 | if (!arg) |
e2e0b3e5 | 989 | error_no_arg (_("starting address")); |
c906108c SS |
990 | |
991 | sals = decode_line_spec_1 (arg, 1); | |
992 | if (sals.nelts != 1) | |
993 | { | |
8a3fe4f8 | 994 | error (_("Unreasonable jump request")); |
c906108c SS |
995 | } |
996 | ||
997 | sal = sals.sals[0]; | |
b8c9b27d | 998 | xfree (sals.sals); |
c906108c SS |
999 | |
1000 | if (sal.symtab == 0 && sal.pc == 0) | |
8a3fe4f8 | 1001 | error (_("No source file has been specified.")); |
c906108c | 1002 | |
c5aa993b | 1003 | resolve_sal_pc (&sal); /* May error out */ |
c906108c SS |
1004 | |
1005 | /* See if we are trying to jump to another function. */ | |
1006 | fn = get_frame_function (get_current_frame ()); | |
1007 | sfn = find_pc_function (sal.pc); | |
1008 | if (fn != NULL && sfn != fn) | |
1009 | { | |
1010 | if (!query ("Line %d is not in `%s'. Jump anyway? ", sal.line, | |
de5ad195 | 1011 | SYMBOL_PRINT_NAME (fn))) |
c906108c | 1012 | { |
8a3fe4f8 | 1013 | error (_("Not confirmed.")); |
c906108c SS |
1014 | /* NOTREACHED */ |
1015 | } | |
1016 | } | |
1017 | ||
c5aa993b | 1018 | if (sfn != NULL) |
c906108c SS |
1019 | { |
1020 | fixup_symbol_section (sfn, 0); | |
c5aa993b | 1021 | if (section_is_overlay (SYMBOL_BFD_SECTION (sfn)) && |
c906108c SS |
1022 | !section_is_mapped (SYMBOL_BFD_SECTION (sfn))) |
1023 | { | |
1024 | if (!query ("WARNING!!! Destination is in unmapped overlay! Jump anyway? ")) | |
1025 | { | |
8a3fe4f8 | 1026 | error (_("Not confirmed.")); |
c906108c SS |
1027 | /* NOTREACHED */ |
1028 | } | |
1029 | } | |
1030 | } | |
1031 | ||
c906108c SS |
1032 | addr = sal.pc; |
1033 | ||
1034 | if (from_tty) | |
1035 | { | |
a3f17187 | 1036 | printf_filtered (_("Continuing at ")); |
ed49a04f | 1037 | fputs_filtered (paddress (addr), gdb_stdout); |
c906108c SS |
1038 | printf_filtered (".\n"); |
1039 | } | |
1040 | ||
89113898 PA |
1041 | /* If we are not asked to run in the bg, then prepare to run in the |
1042 | foreground, synchronously. */ | |
1043 | if (!async_exec && target_can_async_p ()) | |
1044 | { | |
1045 | /* Simulate synchronous execution */ | |
1046 | async_disable_stdin (); | |
1047 | } | |
1048 | ||
c906108c SS |
1049 | clear_proceed_status (); |
1050 | proceed (addr, TARGET_SIGNAL_0, 0); | |
1051 | } | |
c906108c | 1052 | \f |
c5aa993b | 1053 | |
c906108c SS |
1054 | /* Go to line or address in current procedure */ |
1055 | static void | |
fba45db2 | 1056 | go_command (char *line_no, int from_tty) |
c906108c | 1057 | { |
c5aa993b | 1058 | if (line_no == (char *) NULL || !*line_no) |
b83266a0 | 1059 | printf_filtered (GO_USAGE); |
c906108c SS |
1060 | else |
1061 | { | |
b83266a0 SS |
1062 | tbreak_command (line_no, from_tty); |
1063 | jump_command (line_no, from_tty); | |
c906108c SS |
1064 | } |
1065 | } | |
c906108c | 1066 | \f |
c5aa993b | 1067 | |
c906108c SS |
1068 | /* Continue program giving it specified signal. */ |
1069 | ||
1070 | static void | |
fba45db2 | 1071 | signal_command (char *signum_exp, int from_tty) |
c906108c SS |
1072 | { |
1073 | enum target_signal oursig; | |
32c1e744 | 1074 | int async_exec = 0; |
c906108c SS |
1075 | |
1076 | dont_repeat (); /* Too dangerous. */ | |
1077 | ERROR_NO_INFERIOR; | |
94cc34af | 1078 | ensure_not_running (); |
c906108c | 1079 | |
32c1e744 VP |
1080 | /* Find out whether we must run in the background. */ |
1081 | if (signum_exp != NULL) | |
1082 | async_exec = strip_bg_char (&signum_exp); | |
1083 | ||
1084 | /* If we must run in the background, but the target can't do it, | |
1085 | error out. */ | |
1086 | if (async_exec && !target_can_async_p ()) | |
1087 | error (_("Asynchronous execution not supported on this target.")); | |
1088 | ||
1089 | /* If we are not asked to run in the bg, then prepare to run in the | |
1090 | foreground, synchronously. */ | |
1091 | if (!async_exec && target_can_async_p ()) | |
1092 | { | |
1093 | /* Simulate synchronous execution. */ | |
1094 | async_disable_stdin (); | |
1095 | } | |
1096 | ||
c906108c | 1097 | if (!signum_exp) |
e2e0b3e5 | 1098 | error_no_arg (_("signal number")); |
c906108c SS |
1099 | |
1100 | /* It would be even slicker to make signal names be valid expressions, | |
1101 | (the type could be "enum $signal" or some such), then the user could | |
1102 | assign them to convenience variables. */ | |
1103 | oursig = target_signal_from_name (signum_exp); | |
1104 | ||
1105 | if (oursig == TARGET_SIGNAL_UNKNOWN) | |
1106 | { | |
1107 | /* No, try numeric. */ | |
bb518678 | 1108 | int num = parse_and_eval_long (signum_exp); |
c906108c SS |
1109 | |
1110 | if (num == 0) | |
1111 | oursig = TARGET_SIGNAL_0; | |
1112 | else | |
1113 | oursig = target_signal_from_command (num); | |
1114 | } | |
1115 | ||
1116 | if (from_tty) | |
1117 | { | |
1118 | if (oursig == TARGET_SIGNAL_0) | |
a3f17187 | 1119 | printf_filtered (_("Continuing with no signal.\n")); |
c906108c | 1120 | else |
a3f17187 | 1121 | printf_filtered (_("Continuing with signal %s.\n"), |
c906108c SS |
1122 | target_signal_to_name (oursig)); |
1123 | } | |
1124 | ||
1125 | clear_proceed_status (); | |
1126 | /* "signal 0" should not get stuck if we are stopped at a breakpoint. | |
1127 | FIXME: Neither should "signal foo" but when I tried passing | |
1128 | (CORE_ADDR)-1 unconditionally I got a testsuite failure which I haven't | |
1129 | tried to track down yet. */ | |
2acceee2 | 1130 | proceed (oursig == TARGET_SIGNAL_0 ? (CORE_ADDR) -1 : stop_pc, oursig, 0); |
c906108c SS |
1131 | } |
1132 | ||
c906108c SS |
1133 | /* Proceed until we reach a different source line with pc greater than |
1134 | our current one or exit the function. We skip calls in both cases. | |
1135 | ||
1136 | Note that eventually this command should probably be changed so | |
1137 | that only source lines are printed out when we hit the breakpoint | |
1138 | we set. This may involve changes to wait_for_inferior and the | |
1139 | proceed status code. */ | |
1140 | ||
c906108c | 1141 | static void |
fba45db2 | 1142 | until_next_command (int from_tty) |
c906108c SS |
1143 | { |
1144 | struct frame_info *frame; | |
1145 | CORE_ADDR pc; | |
1146 | struct symbol *func; | |
1147 | struct symtab_and_line sal; | |
c5aa993b | 1148 | |
c906108c SS |
1149 | clear_proceed_status (); |
1150 | ||
1151 | frame = get_current_frame (); | |
1152 | ||
1153 | /* Step until either exited from this function or greater | |
1154 | than the current line (if in symbolic section) or pc (if | |
1155 | not). */ | |
1156 | ||
1157 | pc = read_pc (); | |
1158 | func = find_pc_function (pc); | |
c5aa993b | 1159 | |
c906108c SS |
1160 | if (!func) |
1161 | { | |
1162 | struct minimal_symbol *msymbol = lookup_minimal_symbol_by_pc (pc); | |
c5aa993b | 1163 | |
c906108c | 1164 | if (msymbol == NULL) |
8a3fe4f8 | 1165 | error (_("Execution is not within a known function.")); |
c5aa993b | 1166 | |
c906108c SS |
1167 | step_range_start = SYMBOL_VALUE_ADDRESS (msymbol); |
1168 | step_range_end = pc; | |
1169 | } | |
1170 | else | |
1171 | { | |
1172 | sal = find_pc_line (pc, 0); | |
c5aa993b | 1173 | |
c906108c SS |
1174 | step_range_start = BLOCK_START (SYMBOL_BLOCK_VALUE (func)); |
1175 | step_range_end = sal.end; | |
1176 | } | |
c5aa993b | 1177 | |
5fbbeb29 | 1178 | step_over_calls = STEP_OVER_ALL; |
aa0cd9c1 | 1179 | step_frame_id = get_frame_id (frame); |
c906108c SS |
1180 | |
1181 | step_multi = 0; /* Only one call to proceed */ | |
c5aa993b | 1182 | |
2acceee2 | 1183 | proceed ((CORE_ADDR) -1, TARGET_SIGNAL_DEFAULT, 1); |
c906108c SS |
1184 | } |
1185 | ||
c5aa993b | 1186 | static void |
fba45db2 | 1187 | until_command (char *arg, int from_tty) |
c906108c | 1188 | { |
43ff13b4 JM |
1189 | int async_exec = 0; |
1190 | ||
c906108c | 1191 | if (!target_has_execution) |
8a3fe4f8 | 1192 | error (_("The program is not running.")); |
43ff13b4 JM |
1193 | |
1194 | /* Find out whether we must run in the background. */ | |
1195 | if (arg != NULL) | |
1196 | async_exec = strip_bg_char (&arg); | |
1197 | ||
1198 | /* If we must run in the background, but the target can't do it, | |
1199 | error out. */ | |
362646f5 | 1200 | if (async_exec && !target_can_async_p ()) |
8a3fe4f8 | 1201 | error (_("Asynchronous execution not supported on this target.")); |
43ff13b4 JM |
1202 | |
1203 | /* If we are not asked to run in the bg, then prepare to run in the | |
1204 | foreground, synchronously. */ | |
362646f5 | 1205 | if (!async_exec && target_can_async_p ()) |
c5aa993b | 1206 | { |
43ff13b4 | 1207 | /* Simulate synchronous execution */ |
6426a772 | 1208 | async_disable_stdin (); |
43ff13b4 JM |
1209 | } |
1210 | ||
c906108c | 1211 | if (arg) |
ae66c1fc | 1212 | until_break_command (arg, from_tty, 0); |
c906108c SS |
1213 | else |
1214 | until_next_command (from_tty); | |
1215 | } | |
ae66c1fc EZ |
1216 | |
1217 | static void | |
1218 | advance_command (char *arg, int from_tty) | |
1219 | { | |
1220 | int async_exec = 0; | |
1221 | ||
1222 | if (!target_has_execution) | |
8a3fe4f8 | 1223 | error (_("The program is not running.")); |
ae66c1fc EZ |
1224 | |
1225 | if (arg == NULL) | |
e2e0b3e5 | 1226 | error_no_arg (_("a location")); |
ae66c1fc EZ |
1227 | |
1228 | /* Find out whether we must run in the background. */ | |
1229 | if (arg != NULL) | |
1230 | async_exec = strip_bg_char (&arg); | |
1231 | ||
1232 | /* If we must run in the background, but the target can't do it, | |
1233 | error out. */ | |
362646f5 | 1234 | if (async_exec && !target_can_async_p ()) |
8a3fe4f8 | 1235 | error (_("Asynchronous execution not supported on this target.")); |
ae66c1fc EZ |
1236 | |
1237 | /* If we are not asked to run in the bg, then prepare to run in the | |
1238 | foreground, synchronously. */ | |
362646f5 | 1239 | if (!async_exec && target_can_async_p ()) |
ae66c1fc EZ |
1240 | { |
1241 | /* Simulate synchronous execution. */ | |
1242 | async_disable_stdin (); | |
1243 | } | |
1244 | ||
1245 | until_break_command (arg, from_tty, 1); | |
1246 | } | |
c906108c | 1247 | \f |
f941662f MK |
1248 | /* Print the result of a function at the end of a 'finish' command. */ |
1249 | ||
11cf8741 | 1250 | static void |
c055b101 | 1251 | print_return_value (struct type *func_type, struct type *value_type) |
11cf8741 | 1252 | { |
31db7b6c | 1253 | struct gdbarch *gdbarch = current_gdbarch; |
bb472c1e MK |
1254 | struct cleanup *old_chain; |
1255 | struct ui_stream *stb; | |
44e5158b AC |
1256 | struct value *value; |
1257 | ||
181fc57c | 1258 | CHECK_TYPEDEF (value_type); |
44e5158b | 1259 | gdb_assert (TYPE_CODE (value_type) != TYPE_CODE_VOID); |
11cf8741 | 1260 | |
92ad9cd9 AC |
1261 | /* FIXME: 2003-09-27: When returning from a nested inferior function |
1262 | call, it's possible (with no help from the architecture vector) | |
1263 | to locate and return/print a "struct return" value. This is just | |
1264 | a more complicated case of what is already being done in in the | |
1265 | inferior function call code. In fact, when inferior function | |
1266 | calls are made async, this will likely be made the norm. */ | |
31db7b6c | 1267 | |
c055b101 CV |
1268 | switch (gdbarch_return_value (gdbarch, func_type, value_type, |
1269 | NULL, NULL, NULL)) | |
44e5158b | 1270 | { |
750eb019 AC |
1271 | case RETURN_VALUE_REGISTER_CONVENTION: |
1272 | case RETURN_VALUE_ABI_RETURNS_ADDRESS: | |
181fc57c | 1273 | case RETURN_VALUE_ABI_PRESERVES_ADDRESS: |
44e5158b | 1274 | value = allocate_value (value_type); |
c055b101 | 1275 | gdbarch_return_value (gdbarch, func_type, value_type, stop_registers, |
990a07ab | 1276 | value_contents_raw (value), NULL); |
750eb019 AC |
1277 | break; |
1278 | case RETURN_VALUE_STRUCT_CONVENTION: | |
1279 | value = NULL; | |
1280 | break; | |
1281 | default: | |
e2e0b3e5 | 1282 | internal_error (__FILE__, __LINE__, _("bad switch")); |
44e5158b | 1283 | } |
bb472c1e | 1284 | |
31db7b6c MK |
1285 | if (value) |
1286 | { | |
1287 | /* Print it. */ | |
1d751abe PA |
1288 | stb = ui_out_stream_new (uiout); |
1289 | old_chain = make_cleanup_ui_out_stream_delete (stb); | |
31db7b6c MK |
1290 | ui_out_text (uiout, "Value returned is "); |
1291 | ui_out_field_fmt (uiout, "gdb-result-var", "$%d", | |
1292 | record_latest_value (value)); | |
1293 | ui_out_text (uiout, " = "); | |
1294 | value_print (value, stb->stream, 0, Val_no_prettyprint); | |
1295 | ui_out_field_stream (uiout, "return-value", stb); | |
1296 | ui_out_text (uiout, "\n"); | |
1d751abe | 1297 | do_cleanups (old_chain); |
31db7b6c MK |
1298 | } |
1299 | else | |
1300 | { | |
1301 | ui_out_text (uiout, "Value returned has type: "); | |
1d751abe PA |
1302 | ui_out_field_string (uiout, "return-type", TYPE_NAME (value_type)); |
1303 | ui_out_text (uiout, "."); | |
1304 | ui_out_text (uiout, " Cannot determine contents\n"); | |
31db7b6c | 1305 | } |
11cf8741 JM |
1306 | } |
1307 | ||
43ff13b4 | 1308 | /* Stuff that needs to be done by the finish command after the target |
f941662f MK |
1309 | has stopped. In asynchronous mode, we wait for the target to stop |
1310 | in the call to poll or select in the event loop, so it is | |
1311 | impossible to do all the stuff as part of the finish_command | |
1312 | function itself. The only chance we have to complete this command | |
1313 | is in fetch_inferior_event, which is called by the event loop as | |
1314 | soon as it detects that the target has stopped. This function is | |
1315 | called via the cmd_continuation pointer. */ | |
1316 | ||
bfec99b2 | 1317 | struct finish_command_continuation_args |
43ff13b4 | 1318 | { |
43ff13b4 | 1319 | struct breakpoint *breakpoint; |
bfec99b2 PA |
1320 | struct symbol *function; |
1321 | }; | |
c5aa993b | 1322 | |
bfec99b2 | 1323 | static void |
604ead4a | 1324 | finish_command_continuation (void *arg) |
bfec99b2 PA |
1325 | { |
1326 | struct finish_command_continuation_args *a = arg; | |
43ff13b4 | 1327 | |
604ead4a PA |
1328 | if (bpstat_find_breakpoint (stop_bpstat, a->breakpoint) != NULL |
1329 | && a->function != NULL) | |
43ff13b4 | 1330 | { |
604ead4a | 1331 | struct type *value_type; |
bfec99b2 | 1332 | |
604ead4a PA |
1333 | value_type = TYPE_TARGET_TYPE (SYMBOL_TYPE (a->function)); |
1334 | if (!value_type) | |
1335 | internal_error (__FILE__, __LINE__, | |
1336 | _("finish_command: function has no target type")); | |
f5871ec0 | 1337 | |
604ead4a PA |
1338 | if (TYPE_CODE (value_type) != TYPE_CODE_VOID) |
1339 | print_return_value (SYMBOL_TYPE (a->function), value_type); | |
43ff13b4 | 1340 | } |
f941662f | 1341 | |
604ead4a PA |
1342 | /* We suppress normal call of normal_stop observer and do it here so |
1343 | that that *stopped notification includes the return value. */ | |
1344 | /* NOTE: This is broken in non-stop mode. There is no guarantee the | |
1345 | next stop will be in the same thread that we started doing a | |
1346 | finish on. This suppressing (or some other replacement means) | |
1347 | should be a thread property. */ | |
1348 | observer_notify_normal_stop (stop_bpstat); | |
8f6a8e84 | 1349 | suppress_stop_observer = 0; |
bfec99b2 | 1350 | delete_breakpoint (a->breakpoint); |
43ff13b4 JM |
1351 | } |
1352 | ||
604ead4a PA |
1353 | static void |
1354 | finish_command_continuation_free_arg (void *arg) | |
1355 | { | |
1356 | /* NOTE: See finish_command_continuation. This would go away, if | |
1357 | this suppressing is made a thread property. */ | |
1358 | suppress_stop_observer = 0; | |
1359 | xfree (arg); | |
1360 | } | |
1361 | ||
f941662f MK |
1362 | /* "finish": Set a temporary breakpoint at the place the selected |
1363 | frame will return to, then continue. */ | |
c906108c SS |
1364 | |
1365 | static void | |
fba45db2 | 1366 | finish_command (char *arg, int from_tty) |
c906108c SS |
1367 | { |
1368 | struct symtab_and_line sal; | |
52f0bd74 AC |
1369 | struct frame_info *frame; |
1370 | struct symbol *function; | |
c906108c SS |
1371 | struct breakpoint *breakpoint; |
1372 | struct cleanup *old_chain; | |
bfec99b2 | 1373 | struct finish_command_continuation_args *cargs; |
43ff13b4 JM |
1374 | |
1375 | int async_exec = 0; | |
1376 | ||
f941662f | 1377 | /* Find out whether we must run in the background. */ |
43ff13b4 JM |
1378 | if (arg != NULL) |
1379 | async_exec = strip_bg_char (&arg); | |
1380 | ||
1381 | /* If we must run in the background, but the target can't do it, | |
f941662f | 1382 | error out. */ |
362646f5 | 1383 | if (async_exec && !target_can_async_p ()) |
8a3fe4f8 | 1384 | error (_("Asynchronous execution not supported on this target.")); |
43ff13b4 JM |
1385 | |
1386 | /* If we are not asked to run in the bg, then prepare to run in the | |
f941662f | 1387 | foreground, synchronously. */ |
362646f5 | 1388 | if (!async_exec && target_can_async_p ()) |
c5aa993b | 1389 | { |
f941662f | 1390 | /* Simulate synchronous execution. */ |
6426a772 | 1391 | async_disable_stdin (); |
43ff13b4 | 1392 | } |
c906108c SS |
1393 | |
1394 | if (arg) | |
8a3fe4f8 | 1395 | error (_("The \"finish\" command does not take any arguments.")); |
c906108c | 1396 | if (!target_has_execution) |
8a3fe4f8 | 1397 | error (_("The program is not running.")); |
c906108c | 1398 | |
206415a3 | 1399 | frame = get_prev_frame (get_selected_frame (_("No selected frame."))); |
c906108c | 1400 | if (frame == 0) |
8a3fe4f8 | 1401 | error (_("\"finish\" not meaningful in the outermost frame.")); |
c906108c SS |
1402 | |
1403 | clear_proceed_status (); | |
1404 | ||
bdd78e62 AC |
1405 | sal = find_pc_line (get_frame_pc (frame), 0); |
1406 | sal.pc = get_frame_pc (frame); | |
c906108c | 1407 | |
818dd999 | 1408 | breakpoint = set_momentary_breakpoint (sal, get_frame_id (frame), bp_finish); |
c906108c | 1409 | |
f107f563 | 1410 | old_chain = make_cleanup_delete_breakpoint (breakpoint); |
c906108c SS |
1411 | |
1412 | /* Find the function we will return from. */ | |
1413 | ||
206415a3 | 1414 | function = find_pc_function (get_frame_pc (get_selected_frame (NULL))); |
c906108c | 1415 | |
f941662f MK |
1416 | /* Print info on the selected frame, including level number but not |
1417 | source. */ | |
c906108c SS |
1418 | if (from_tty) |
1419 | { | |
a3f17187 | 1420 | printf_filtered (_("Run till exit from ")); |
b04f3ab4 | 1421 | print_stack_frame (get_selected_frame (NULL), 1, LOCATION); |
c906108c SS |
1422 | } |
1423 | ||
32c1e744 | 1424 | proceed_to_finish = 1; /* We want stop_registers, please... */ |
8f6a8e84 VP |
1425 | make_cleanup_restore_integer (&suppress_stop_observer); |
1426 | suppress_stop_observer = 1; | |
32c1e744 VP |
1427 | proceed ((CORE_ADDR) -1, TARGET_SIGNAL_DEFAULT, 0); |
1428 | ||
bfec99b2 PA |
1429 | cargs = xmalloc (sizeof (*cargs)); |
1430 | ||
1431 | cargs->breakpoint = breakpoint; | |
1432 | cargs->function = function; | |
604ead4a PA |
1433 | add_continuation (finish_command_continuation, cargs, |
1434 | finish_command_continuation_free_arg); | |
bfec99b2 | 1435 | |
f107f563 | 1436 | discard_cleanups (old_chain); |
362646f5 | 1437 | if (!target_can_async_p ()) |
604ead4a | 1438 | do_all_continuations (); |
c906108c SS |
1439 | } |
1440 | \f | |
f941662f | 1441 | |
c906108c | 1442 | static void |
fba45db2 | 1443 | program_info (char *args, int from_tty) |
c906108c SS |
1444 | { |
1445 | bpstat bs = stop_bpstat; | |
8671a17b PA |
1446 | int num; |
1447 | int stat = bpstat_num (&bs, &num); | |
c5aa993b | 1448 | |
c906108c SS |
1449 | if (!target_has_execution) |
1450 | { | |
a3f17187 | 1451 | printf_filtered (_("The program being debugged is not being run.\n")); |
c906108c SS |
1452 | return; |
1453 | } | |
1454 | ||
1455 | target_files_info (); | |
a3f17187 | 1456 | printf_filtered (_("Program stopped at %s.\n"), |
bb599908 | 1457 | hex_string ((unsigned long) stop_pc)); |
c906108c | 1458 | if (stop_step) |
a3f17187 | 1459 | printf_filtered (_("It stopped after being stepped.\n")); |
8671a17b | 1460 | else if (stat != 0) |
c906108c SS |
1461 | { |
1462 | /* There may be several breakpoints in the same place, so this | |
c5aa993b | 1463 | isn't as strange as it seems. */ |
8671a17b | 1464 | while (stat != 0) |
c906108c | 1465 | { |
8671a17b | 1466 | if (stat < 0) |
c906108c | 1467 | { |
a3f17187 AC |
1468 | printf_filtered (_("\ |
1469 | It stopped at a breakpoint that has since been deleted.\n")); | |
c906108c SS |
1470 | } |
1471 | else | |
a3f17187 | 1472 | printf_filtered (_("It stopped at breakpoint %d.\n"), num); |
8671a17b | 1473 | stat = bpstat_num (&bs, &num); |
c906108c SS |
1474 | } |
1475 | } | |
1476 | else if (stop_signal != TARGET_SIGNAL_0) | |
1477 | { | |
a3f17187 | 1478 | printf_filtered (_("It stopped with signal %s, %s.\n"), |
c906108c SS |
1479 | target_signal_to_name (stop_signal), |
1480 | target_signal_to_string (stop_signal)); | |
1481 | } | |
1482 | ||
1483 | if (!from_tty) | |
1484 | { | |
a3f17187 AC |
1485 | printf_filtered (_("\ |
1486 | Type \"info stack\" or \"info registers\" for more information.\n")); | |
c906108c SS |
1487 | } |
1488 | } | |
1489 | \f | |
1490 | static void | |
fba45db2 | 1491 | environment_info (char *var, int from_tty) |
c906108c SS |
1492 | { |
1493 | if (var) | |
1494 | { | |
aa1ee363 | 1495 | char *val = get_in_environ (inferior_environ, var); |
c906108c SS |
1496 | if (val) |
1497 | { | |
1498 | puts_filtered (var); | |
1499 | puts_filtered (" = "); | |
1500 | puts_filtered (val); | |
1501 | puts_filtered ("\n"); | |
1502 | } | |
1503 | else | |
1504 | { | |
1505 | puts_filtered ("Environment variable \""); | |
1506 | puts_filtered (var); | |
1507 | puts_filtered ("\" not defined.\n"); | |
1508 | } | |
1509 | } | |
1510 | else | |
1511 | { | |
aa1ee363 | 1512 | char **vector = environ_vector (inferior_environ); |
c906108c SS |
1513 | while (*vector) |
1514 | { | |
1515 | puts_filtered (*vector++); | |
1516 | puts_filtered ("\n"); | |
1517 | } | |
1518 | } | |
1519 | } | |
1520 | ||
1521 | static void | |
fba45db2 | 1522 | set_environment_command (char *arg, int from_tty) |
c906108c | 1523 | { |
52f0bd74 | 1524 | char *p, *val, *var; |
c906108c SS |
1525 | int nullset = 0; |
1526 | ||
1527 | if (arg == 0) | |
e2e0b3e5 | 1528 | error_no_arg (_("environment variable and value")); |
c906108c SS |
1529 | |
1530 | /* Find seperation between variable name and value */ | |
1531 | p = (char *) strchr (arg, '='); | |
1532 | val = (char *) strchr (arg, ' '); | |
1533 | ||
1534 | if (p != 0 && val != 0) | |
1535 | { | |
1536 | /* We have both a space and an equals. If the space is before the | |
c5aa993b JM |
1537 | equals, walk forward over the spaces til we see a nonspace |
1538 | (possibly the equals). */ | |
c906108c SS |
1539 | if (p > val) |
1540 | while (*val == ' ') | |
1541 | val++; | |
1542 | ||
1543 | /* Now if the = is after the char following the spaces, | |
c5aa993b | 1544 | take the char following the spaces. */ |
c906108c SS |
1545 | if (p > val) |
1546 | p = val - 1; | |
1547 | } | |
1548 | else if (val != 0 && p == 0) | |
1549 | p = val; | |
1550 | ||
1551 | if (p == arg) | |
e2e0b3e5 | 1552 | error_no_arg (_("environment variable to set")); |
c906108c SS |
1553 | |
1554 | if (p == 0 || p[1] == 0) | |
1555 | { | |
1556 | nullset = 1; | |
1557 | if (p == 0) | |
1558 | p = arg + strlen (arg); /* So that savestring below will work */ | |
1559 | } | |
1560 | else | |
1561 | { | |
1562 | /* Not setting variable value to null */ | |
1563 | val = p + 1; | |
1564 | while (*val == ' ' || *val == '\t') | |
1565 | val++; | |
1566 | } | |
1567 | ||
c5aa993b JM |
1568 | while (p != arg && (p[-1] == ' ' || p[-1] == '\t')) |
1569 | p--; | |
c906108c SS |
1570 | |
1571 | var = savestring (arg, p - arg); | |
1572 | if (nullset) | |
1573 | { | |
a3f17187 AC |
1574 | printf_filtered (_("\ |
1575 | Setting environment variable \"%s\" to null value.\n"), | |
1576 | var); | |
c906108c SS |
1577 | set_in_environ (inferior_environ, var, ""); |
1578 | } | |
1579 | else | |
1580 | set_in_environ (inferior_environ, var, val); | |
b8c9b27d | 1581 | xfree (var); |
c906108c SS |
1582 | } |
1583 | ||
1584 | static void | |
fba45db2 | 1585 | unset_environment_command (char *var, int from_tty) |
c906108c SS |
1586 | { |
1587 | if (var == 0) | |
1588 | { | |
1589 | /* If there is no argument, delete all environment variables. | |
c5aa993b | 1590 | Ask for confirmation if reading from the terminal. */ |
e2e0b3e5 | 1591 | if (!from_tty || query (_("Delete all environment variables? "))) |
c906108c SS |
1592 | { |
1593 | free_environ (inferior_environ); | |
1594 | inferior_environ = make_environ (); | |
1595 | } | |
1596 | } | |
1597 | else | |
1598 | unset_in_environ (inferior_environ, var); | |
1599 | } | |
1600 | ||
1601 | /* Handle the execution path (PATH variable) */ | |
1602 | ||
1603 | static const char path_var_name[] = "PATH"; | |
1604 | ||
c906108c | 1605 | static void |
fba45db2 | 1606 | path_info (char *args, int from_tty) |
c906108c SS |
1607 | { |
1608 | puts_filtered ("Executable and object file path: "); | |
1609 | puts_filtered (get_in_environ (inferior_environ, path_var_name)); | |
1610 | puts_filtered ("\n"); | |
1611 | } | |
1612 | ||
1613 | /* Add zero or more directories to the front of the execution path. */ | |
1614 | ||
1615 | static void | |
fba45db2 | 1616 | path_command (char *dirname, int from_tty) |
c906108c SS |
1617 | { |
1618 | char *exec_path; | |
1619 | char *env; | |
1620 | dont_repeat (); | |
1621 | env = get_in_environ (inferior_environ, path_var_name); | |
1622 | /* Can be null if path is not set */ | |
1623 | if (!env) | |
1624 | env = ""; | |
4fcf66da | 1625 | exec_path = xstrdup (env); |
c906108c SS |
1626 | mod_path (dirname, &exec_path); |
1627 | set_in_environ (inferior_environ, path_var_name, exec_path); | |
b8c9b27d | 1628 | xfree (exec_path); |
c906108c | 1629 | if (from_tty) |
c5aa993b | 1630 | path_info ((char *) NULL, from_tty); |
c906108c | 1631 | } |
c906108c | 1632 | \f |
c5aa993b | 1633 | |
4782dc19 | 1634 | /* Print out the machine register regnum. If regnum is -1, print all |
0ab7a791 AC |
1635 | registers (print_all == 1) or all non-float and non-vector |
1636 | registers (print_all == 0). | |
c906108c SS |
1637 | |
1638 | For most machines, having all_registers_info() print the | |
0ab7a791 AC |
1639 | register(s) one per line is good enough. If a different format is |
1640 | required, (eg, for MIPS or Pyramid 90x, which both have lots of | |
1641 | regs), or there is an existing convention for showing all the | |
1642 | registers, define the architecture method PRINT_REGISTERS_INFO to | |
1643 | provide that format. */ | |
c906108c | 1644 | |
666e11c5 | 1645 | void |
0ab7a791 AC |
1646 | default_print_registers_info (struct gdbarch *gdbarch, |
1647 | struct ui_file *file, | |
1648 | struct frame_info *frame, | |
1649 | int regnum, int print_all) | |
c906108c | 1650 | { |
0ab7a791 | 1651 | int i; |
a4bd449d UW |
1652 | const int numregs = gdbarch_num_regs (gdbarch) |
1653 | + gdbarch_num_pseudo_regs (gdbarch); | |
10c42a71 | 1654 | gdb_byte buffer[MAX_REGISTER_SIZE]; |
0ab7a791 | 1655 | |
c906108c SS |
1656 | for (i = 0; i < numregs; i++) |
1657 | { | |
4782dc19 AC |
1658 | /* Decide between printing all regs, non-float / vector regs, or |
1659 | specific reg. */ | |
c5aa993b JM |
1660 | if (regnum == -1) |
1661 | { | |
f9418c0f | 1662 | if (print_all) |
4782dc19 | 1663 | { |
f9418c0f | 1664 | if (!gdbarch_register_reggroup_p (gdbarch, i, all_reggroup)) |
4782dc19 | 1665 | continue; |
f9418c0f AC |
1666 | } |
1667 | else | |
1668 | { | |
1669 | if (!gdbarch_register_reggroup_p (gdbarch, i, general_reggroup)) | |
4782dc19 AC |
1670 | continue; |
1671 | } | |
c5aa993b JM |
1672 | } |
1673 | else | |
1674 | { | |
1675 | if (i != regnum) | |
1676 | continue; | |
1677 | } | |
c906108c SS |
1678 | |
1679 | /* If the register name is empty, it is undefined for this | |
c5aa993b | 1680 | processor, so don't display anything. */ |
a4bd449d UW |
1681 | if (gdbarch_register_name (gdbarch, i) == NULL |
1682 | || *(gdbarch_register_name (gdbarch, i)) == '\0') | |
c906108c SS |
1683 | continue; |
1684 | ||
a4bd449d | 1685 | fputs_filtered (gdbarch_register_name (gdbarch, i), file); |
c9f4d572 | 1686 | print_spaces_filtered (15 - strlen (gdbarch_register_name |
a4bd449d | 1687 | (gdbarch, i)), file); |
c906108c SS |
1688 | |
1689 | /* Get the data in raw format. */ | |
9730f241 | 1690 | if (! frame_register_read (frame, i, buffer)) |
c906108c | 1691 | { |
0ab7a791 | 1692 | fprintf_filtered (file, "*value not available*\n"); |
c906108c SS |
1693 | continue; |
1694 | } | |
1695 | ||
0ab7a791 AC |
1696 | /* If virtual format is floating, print it that way, and in raw |
1697 | hex. */ | |
f949c649 TJB |
1698 | if (TYPE_CODE (register_type (gdbarch, i)) == TYPE_CODE_FLT |
1699 | || TYPE_CODE (register_type (gdbarch, i)) == TYPE_CODE_DECFLOAT) | |
c906108c | 1700 | { |
0ab7a791 | 1701 | int j; |
c906108c | 1702 | |
a4bd449d | 1703 | val_print (register_type (gdbarch, i), buffer, 0, 0, |
d8ca156b | 1704 | file, 0, 1, 0, Val_pretty_default, current_language); |
c906108c | 1705 | |
0ab7a791 | 1706 | fprintf_filtered (file, "\t(raw 0x"); |
a4bd449d | 1707 | for (j = 0; j < register_size (gdbarch, i); j++) |
c906108c | 1708 | { |
0ab7a791 | 1709 | int idx; |
a4bd449d | 1710 | if (gdbarch_byte_order (gdbarch) == BFD_ENDIAN_BIG) |
0ab7a791 AC |
1711 | idx = j; |
1712 | else | |
a4bd449d | 1713 | idx = register_size (gdbarch, i) - 1 - j; |
9730f241 | 1714 | fprintf_filtered (file, "%02x", (unsigned char) buffer[idx]); |
c906108c | 1715 | } |
0ab7a791 | 1716 | fprintf_filtered (file, ")"); |
c906108c | 1717 | } |
c906108c SS |
1718 | else |
1719 | { | |
ab4327e0 | 1720 | /* Print the register in hex. */ |
a4bd449d | 1721 | val_print (register_type (gdbarch, i), buffer, 0, 0, |
d8ca156b | 1722 | file, 'x', 1, 0, Val_pretty_default, current_language); |
ab4327e0 EZ |
1723 | /* If not a vector register, print it also according to its |
1724 | natural format. */ | |
a4bd449d | 1725 | if (TYPE_VECTOR (register_type (gdbarch, i)) == 0) |
ab4327e0 | 1726 | { |
9d84ac84 | 1727 | fprintf_filtered (file, "\t"); |
a4bd449d | 1728 | val_print (register_type (gdbarch, i), buffer, 0, 0, |
d8ca156b | 1729 | file, 0, 1, 0, Val_pretty_default, current_language); |
ab4327e0 | 1730 | } |
c906108c SS |
1731 | } |
1732 | ||
0ab7a791 | 1733 | fprintf_filtered (file, "\n"); |
c906108c SS |
1734 | } |
1735 | } | |
c906108c | 1736 | |
c906108c | 1737 | void |
fba45db2 | 1738 | registers_info (char *addr_exp, int fpregs) |
c906108c | 1739 | { |
206415a3 | 1740 | struct frame_info *frame; |
a4bd449d | 1741 | struct gdbarch *gdbarch; |
c906108c | 1742 | int regnum, numregs; |
52f0bd74 | 1743 | char *end; |
c906108c SS |
1744 | |
1745 | if (!target_has_registers) | |
8a3fe4f8 | 1746 | error (_("The program has no registers now.")); |
206415a3 | 1747 | frame = get_selected_frame (NULL); |
a4bd449d | 1748 | gdbarch = get_frame_arch (frame); |
c906108c SS |
1749 | |
1750 | if (!addr_exp) | |
1751 | { | |
a4bd449d | 1752 | gdbarch_print_registers_info (gdbarch, gdb_stdout, |
206415a3 | 1753 | frame, -1, fpregs); |
c906108c SS |
1754 | return; |
1755 | } | |
1756 | ||
f9418c0f | 1757 | while (*addr_exp != '\0') |
c5aa993b | 1758 | { |
f9418c0f AC |
1759 | char *start; |
1760 | const char *end; | |
c906108c | 1761 | |
f9418c0f AC |
1762 | /* Keep skipping leading white space. */ |
1763 | if (isspace ((*addr_exp))) | |
1764 | { | |
1765 | addr_exp++; | |
1766 | continue; | |
1767 | } | |
c906108c | 1768 | |
f9418c0f AC |
1769 | /* Discard any leading ``$''. Check that there is something |
1770 | resembling a register following it. */ | |
1771 | if (addr_exp[0] == '$') | |
1772 | addr_exp++; | |
1773 | if (isspace ((*addr_exp)) || (*addr_exp) == '\0') | |
8a3fe4f8 | 1774 | error (_("Missing register name")); |
c906108c | 1775 | |
f9418c0f AC |
1776 | /* Find the start/end of this register name/num/group. */ |
1777 | start = addr_exp; | |
1778 | while ((*addr_exp) != '\0' && !isspace ((*addr_exp))) | |
1779 | addr_exp++; | |
1780 | end = addr_exp; | |
ad842144 | 1781 | |
f9418c0f AC |
1782 | /* Figure out what we've found and display it. */ |
1783 | ||
1784 | /* A register name? */ | |
1785 | { | |
ad842144 | 1786 | int regnum = frame_map_name_to_regnum (frame, start, end - start); |
f9418c0f AC |
1787 | if (regnum >= 0) |
1788 | { | |
ad842144 MR |
1789 | /* User registers lie completely outside of the range of |
1790 | normal registers. Catch them early so that the target | |
1791 | never sees them. */ | |
1792 | if (regnum >= gdbarch_num_regs (gdbarch) | |
1793 | + gdbarch_num_pseudo_regs (gdbarch)) | |
1794 | { | |
1795 | struct value *val = value_of_user_reg (regnum, frame); | |
1796 | ||
1797 | printf_filtered ("%s: ", start); | |
1798 | print_scalar_formatted (value_contents (val), | |
1799 | check_typedef (value_type (val)), | |
1800 | 'x', 0, gdb_stdout); | |
1801 | printf_filtered ("\n"); | |
1802 | } | |
1803 | else | |
1804 | gdbarch_print_registers_info (gdbarch, gdb_stdout, | |
1805 | frame, regnum, fpregs); | |
f9418c0f AC |
1806 | continue; |
1807 | } | |
1808 | } | |
ad842144 | 1809 | |
f9418c0f AC |
1810 | /* A register number? (how portable is this one?). */ |
1811 | { | |
1812 | char *endptr; | |
1813 | int regnum = strtol (start, &endptr, 0); | |
1814 | if (endptr == end | |
1815 | && regnum >= 0 | |
a4bd449d UW |
1816 | && regnum < gdbarch_num_regs (gdbarch) |
1817 | + gdbarch_num_pseudo_regs (gdbarch)) | |
f9418c0f | 1818 | { |
a4bd449d | 1819 | gdbarch_print_registers_info (gdbarch, gdb_stdout, |
206415a3 | 1820 | frame, regnum, fpregs); |
f9418c0f AC |
1821 | continue; |
1822 | } | |
1823 | } | |
1824 | ||
1825 | /* A register group? */ | |
1826 | { | |
6c7d17ba | 1827 | struct reggroup *group; |
a4bd449d | 1828 | for (group = reggroup_next (gdbarch, NULL); |
6c7d17ba | 1829 | group != NULL; |
a4bd449d | 1830 | group = reggroup_next (gdbarch, group)) |
f9418c0f AC |
1831 | { |
1832 | /* Don't bother with a length check. Should the user | |
1833 | enter a short register group name, go with the first | |
1834 | group that matches. */ | |
6c7d17ba | 1835 | if (strncmp (start, reggroup_name (group), end - start) == 0) |
f9418c0f AC |
1836 | break; |
1837 | } | |
6c7d17ba | 1838 | if (group != NULL) |
f9418c0f AC |
1839 | { |
1840 | int regnum; | |
f57d151a | 1841 | for (regnum = 0; |
a4bd449d UW |
1842 | regnum < gdbarch_num_regs (gdbarch) |
1843 | + gdbarch_num_pseudo_regs (gdbarch); | |
f57d151a | 1844 | regnum++) |
f9418c0f | 1845 | { |
a4bd449d UW |
1846 | if (gdbarch_register_reggroup_p (gdbarch, regnum, group)) |
1847 | gdbarch_print_registers_info (gdbarch, | |
206415a3 | 1848 | gdb_stdout, frame, |
f9418c0f AC |
1849 | regnum, fpregs); |
1850 | } | |
1851 | continue; | |
1852 | } | |
1853 | } | |
c906108c | 1854 | |
f9418c0f | 1855 | /* Nothing matched. */ |
8a3fe4f8 | 1856 | error (_("Invalid register `%.*s'"), (int) (end - start), start); |
c5aa993b | 1857 | } |
c906108c SS |
1858 | } |
1859 | ||
1860 | void | |
fba45db2 | 1861 | all_registers_info (char *addr_exp, int from_tty) |
c906108c SS |
1862 | { |
1863 | registers_info (addr_exp, 1); | |
1864 | } | |
1865 | ||
a58dd373 | 1866 | static void |
fba45db2 | 1867 | nofp_registers_info (char *addr_exp, int from_tty) |
c906108c SS |
1868 | { |
1869 | registers_info (addr_exp, 0); | |
1870 | } | |
e76f1f2e AC |
1871 | |
1872 | static void | |
1873 | print_vector_info (struct gdbarch *gdbarch, struct ui_file *file, | |
1874 | struct frame_info *frame, const char *args) | |
1875 | { | |
1876 | if (gdbarch_print_vector_info_p (gdbarch)) | |
1877 | gdbarch_print_vector_info (gdbarch, file, frame, args); | |
1878 | else | |
1879 | { | |
1880 | int regnum; | |
1881 | int printed_something = 0; | |
ab4327e0 | 1882 | |
f57d151a | 1883 | for (regnum = 0; |
a4bd449d UW |
1884 | regnum < gdbarch_num_regs (gdbarch) |
1885 | + gdbarch_num_pseudo_regs (gdbarch); | |
f57d151a | 1886 | regnum++) |
e76f1f2e | 1887 | { |
f9418c0f | 1888 | if (gdbarch_register_reggroup_p (gdbarch, regnum, vector_reggroup)) |
e76f1f2e AC |
1889 | { |
1890 | printed_something = 1; | |
e76f1f2e | 1891 | gdbarch_print_registers_info (gdbarch, file, frame, regnum, 1); |
e76f1f2e AC |
1892 | } |
1893 | } | |
1894 | if (!printed_something) | |
1895 | fprintf_filtered (file, "No vector information\n"); | |
1896 | } | |
1897 | } | |
1898 | ||
1899 | static void | |
1900 | vector_info (char *args, int from_tty) | |
1901 | { | |
206415a3 DJ |
1902 | if (!target_has_registers) |
1903 | error (_("The program has no registers now.")); | |
1904 | ||
1905 | print_vector_info (current_gdbarch, gdb_stdout, | |
1906 | get_selected_frame (NULL), args); | |
e76f1f2e | 1907 | } |
c906108c | 1908 | \f |
c5aa993b | 1909 | |
c906108c SS |
1910 | /* |
1911 | * TODO: | |
1912 | * Should save/restore the tty state since it might be that the | |
1913 | * program to be debugged was started on this tty and it wants | |
1914 | * the tty in some state other than what we want. If it's running | |
1915 | * on another terminal or without a terminal, then saving and | |
1916 | * restoring the tty state is a harmless no-op. | |
1917 | * This only needs to be done if we are attaching to a process. | |
1918 | */ | |
1919 | ||
1920 | /* | |
1921 | attach_command -- | |
1922 | takes a program started up outside of gdb and ``attaches'' to it. | |
1923 | This stops it cold in its tracks and allows us to start debugging it. | |
1924 | and wait for the trace-trap that results from attaching. */ | |
1925 | ||
9356cf8d PA |
1926 | static void |
1927 | attach_command_post_wait (char *args, int from_tty, int async_exec) | |
1928 | { | |
1929 | char *exec_file; | |
1930 | char *full_exec_path = NULL; | |
1931 | ||
1932 | stop_soon = NO_STOP_QUIETLY; | |
1933 | ||
1934 | /* If no exec file is yet known, try to determine it from the | |
1935 | process itself. */ | |
1936 | exec_file = (char *) get_exec_file (0); | |
1937 | if (!exec_file) | |
1938 | { | |
1939 | exec_file = target_pid_to_exec_file (PIDGET (inferior_ptid)); | |
1940 | if (exec_file) | |
1941 | { | |
1942 | /* It's possible we don't have a full path, but rather just a | |
1943 | filename. Some targets, such as HP-UX, don't provide the | |
1944 | full path, sigh. | |
1945 | ||
1946 | Attempt to qualify the filename against the source path. | |
1947 | (If that fails, we'll just fall back on the original | |
1948 | filename. Not much more we can do...) | |
1949 | */ | |
1950 | if (!source_full_path_of (exec_file, &full_exec_path)) | |
1951 | full_exec_path = savestring (exec_file, strlen (exec_file)); | |
1952 | ||
1953 | exec_file_attach (full_exec_path, from_tty); | |
1954 | symbol_file_add_main (full_exec_path, from_tty); | |
1955 | } | |
1956 | } | |
1957 | else | |
1958 | { | |
1959 | reopen_exec_file (); | |
1960 | reread_symbols (); | |
1961 | } | |
1962 | ||
1963 | /* Take any necessary post-attaching actions for this platform. */ | |
1964 | target_post_attach (PIDGET (inferior_ptid)); | |
1965 | ||
1966 | post_create_inferior (¤t_target, from_tty); | |
1967 | ||
1968 | /* Install inferior's terminal modes. */ | |
1969 | target_terminal_inferior (); | |
1970 | ||
1971 | if (async_exec) | |
1972 | proceed ((CORE_ADDR) -1, TARGET_SIGNAL_0, 0); | |
1973 | else | |
1974 | { | |
1975 | if (target_can_async_p ()) | |
1976 | async_enable_stdin (); | |
1977 | normal_stop (); | |
1978 | if (deprecated_attach_hook) | |
1979 | deprecated_attach_hook (); | |
1980 | } | |
1981 | } | |
1982 | ||
bfec99b2 | 1983 | struct attach_command_continuation_args |
9356cf8d PA |
1984 | { |
1985 | char *args; | |
1986 | int from_tty; | |
1987 | int async_exec; | |
bfec99b2 | 1988 | }; |
9356cf8d | 1989 | |
bfec99b2 | 1990 | static void |
604ead4a | 1991 | attach_command_continuation (void *args) |
bfec99b2 PA |
1992 | { |
1993 | struct attach_command_continuation_args *a = args; | |
1994 | attach_command_post_wait (a->args, a->from_tty, a->async_exec); | |
9356cf8d PA |
1995 | } |
1996 | ||
604ead4a PA |
1997 | static void |
1998 | attach_command_continuation_free_args (void *args) | |
1999 | { | |
2000 | struct attach_command_continuation_args *a = args; | |
2001 | xfree (a->args); | |
2002 | xfree (a); | |
2003 | } | |
2004 | ||
c906108c | 2005 | void |
fba45db2 | 2006 | attach_command (char *args, int from_tty) |
c906108c | 2007 | { |
c5aa993b JM |
2008 | char *exec_file; |
2009 | char *full_exec_path = NULL; | |
9356cf8d | 2010 | int async_exec = 0; |
c906108c | 2011 | |
c5aa993b | 2012 | dont_repeat (); /* Not for the faint of heart */ |
c906108c SS |
2013 | |
2014 | if (target_has_execution) | |
2015 | { | |
2016 | if (query ("A program is being debugged already. Kill it? ")) | |
2017 | target_kill (); | |
2018 | else | |
8a3fe4f8 | 2019 | error (_("Not killed.")); |
c906108c SS |
2020 | } |
2021 | ||
fd79ecee DJ |
2022 | /* Clean up any leftovers from other runs. Some other things from |
2023 | this function should probably be moved into target_pre_inferior. */ | |
2024 | target_pre_inferior (from_tty); | |
2025 | ||
4bcff7eb CV |
2026 | /* Clear out solib state. Otherwise the solib state of the previous |
2027 | inferior might have survived and is entirely wrong for the new | |
155bd5d1 AC |
2028 | target. This has been observed on GNU/Linux using glibc 2.3. How |
2029 | to reproduce: | |
4bcff7eb CV |
2030 | |
2031 | bash$ ./foo& | |
2032 | [1] 4711 | |
2033 | bash$ ./foo& | |
2034 | [1] 4712 | |
2035 | bash$ gdb ./foo | |
2036 | [...] | |
2037 | (gdb) attach 4711 | |
2038 | (gdb) detach | |
2039 | (gdb) attach 4712 | |
2040 | Cannot access memory at address 0xdeadbeef | |
2041 | */ | |
7a72d44c | 2042 | clear_solib (); |
4bcff7eb | 2043 | |
9356cf8d PA |
2044 | if (args) |
2045 | { | |
2046 | async_exec = strip_bg_char (&args); | |
2047 | ||
2048 | /* If we get a request for running in the bg but the target | |
2049 | doesn't support it, error out. */ | |
2050 | if (async_exec && !target_can_async_p ()) | |
2051 | error (_("Asynchronous execution not supported on this target.")); | |
2052 | } | |
2053 | ||
2054 | /* If we don't get a request of running in the bg, then we need | |
2055 | to simulate synchronous (fg) execution. */ | |
2056 | if (!async_exec && target_can_async_p ()) | |
2057 | { | |
2058 | /* Simulate synchronous execution */ | |
2059 | async_disable_stdin (); | |
2060 | } | |
2061 | ||
c906108c SS |
2062 | target_attach (args, from_tty); |
2063 | ||
2064 | /* Set up the "saved terminal modes" of the inferior | |
2065 | based on what modes we are starting it with. */ | |
2066 | target_terminal_init (); | |
2067 | ||
c906108c SS |
2068 | /* Set up execution context to know that we should return from |
2069 | wait_for_inferior as soon as the target reports a stop. */ | |
2070 | init_wait_for_inferior (); | |
2071 | clear_proceed_status (); | |
c906108c | 2072 | |
dc177b7a PA |
2073 | /* Some system don't generate traps when attaching to inferior. |
2074 | E.g. Mach 3 or GNU hurd. */ | |
2075 | if (!target_attach_no_wait) | |
c5aa993b | 2076 | { |
dc177b7a PA |
2077 | /* Careful here. See comments in inferior.h. Basically some |
2078 | OSes don't ignore SIGSTOPs on continue requests anymore. We | |
2079 | need a way for handle_inferior_event to reset the stop_signal | |
2080 | variable after an attach, and this is what | |
2081 | STOP_QUIETLY_NO_SIGSTOP is for. */ | |
2082 | stop_soon = STOP_QUIETLY_NO_SIGSTOP; | |
c5aa993b | 2083 | |
dc177b7a PA |
2084 | if (target_can_async_p ()) |
2085 | { | |
2086 | /* sync_execution mode. Wait for stop. */ | |
bfec99b2 PA |
2087 | struct attach_command_continuation_args *a; |
2088 | ||
2089 | a = xmalloc (sizeof (*a)); | |
2090 | a->args = xstrdup (args); | |
2091 | a->from_tty = from_tty; | |
2092 | a->async_exec = async_exec; | |
604ead4a PA |
2093 | add_continuation (attach_command_continuation, a, |
2094 | attach_command_continuation_free_args); | |
dc177b7a PA |
2095 | return; |
2096 | } | |
c906108c | 2097 | |
dc177b7a PA |
2098 | wait_for_inferior (0); |
2099 | } | |
6426a772 | 2100 | |
9356cf8d | 2101 | attach_command_post_wait (args, from_tty, async_exec); |
c906108c SS |
2102 | } |
2103 | ||
2104 | /* | |
2105 | * detach_command -- | |
2106 | * takes a program previously attached to and detaches it. | |
2107 | * The program resumes execution and will no longer stop | |
2108 | * on signals, etc. We better not have left any breakpoints | |
2109 | * in the program or it'll die when it hits one. For this | |
2110 | * to work, it may be necessary for the process to have been | |
2111 | * previously attached. It *might* work if the program was | |
2112 | * started via the normal ptrace (PTRACE_TRACEME). | |
2113 | */ | |
2114 | ||
2115 | static void | |
fba45db2 | 2116 | detach_command (char *args, int from_tty) |
c906108c | 2117 | { |
1f5d0fc9 | 2118 | dont_repeat (); /* Not for the faint of heart. */ |
c906108c | 2119 | target_detach (args, from_tty); |
e85a822c | 2120 | no_shared_libraries (NULL, from_tty); |
a0ef4274 | 2121 | init_thread_list (); |
9a4105ab AC |
2122 | if (deprecated_detach_hook) |
2123 | deprecated_detach_hook (); | |
c906108c SS |
2124 | } |
2125 | ||
6ad8ae5c DJ |
2126 | /* Disconnect from the current target without resuming it (leaving it |
2127 | waiting for a debugger). | |
2128 | ||
2129 | We'd better not have left any breakpoints in the program or the | |
2130 | next debugger will get confused. Currently only supported for some | |
2131 | remote targets, since the normal attach mechanisms don't work on | |
2132 | stopped processes on some native platforms (e.g. GNU/Linux). */ | |
2133 | ||
2134 | static void | |
2135 | disconnect_command (char *args, int from_tty) | |
2136 | { | |
2137 | dont_repeat (); /* Not for the faint of heart */ | |
2138 | target_disconnect (args, from_tty); | |
e85a822c | 2139 | no_shared_libraries (NULL, from_tty); |
a0ef4274 | 2140 | init_thread_list (); |
9a4105ab AC |
2141 | if (deprecated_detach_hook) |
2142 | deprecated_detach_hook (); | |
6ad8ae5c DJ |
2143 | } |
2144 | ||
77ebaa5a VP |
2145 | void |
2146 | interrupt_target_1 (int all_threads) | |
2147 | { | |
2148 | ptid_t ptid; | |
2149 | if (all_threads) | |
2150 | ptid = minus_one_ptid; | |
2151 | else | |
2152 | ptid = inferior_ptid; | |
2153 | target_stop (ptid); | |
2154 | } | |
2155 | ||
43ff13b4 | 2156 | /* Stop the execution of the target while running in async mode, in |
8cae4b3f PA |
2157 | the backgound. In all-stop, stop the whole process. In non-stop |
2158 | mode, stop the current thread only by default, or stop all threads | |
2159 | if the `-a' switch is used. */ | |
2160 | ||
2161 | /* interrupt [-a] */ | |
8b93c638 | 2162 | void |
fba45db2 | 2163 | interrupt_target_command (char *args, int from_tty) |
43ff13b4 | 2164 | { |
362646f5 | 2165 | if (target_can_async_p ()) |
43ff13b4 | 2166 | { |
8cae4b3f PA |
2167 | int all_threads = 0; |
2168 | ||
c5aa993b | 2169 | dont_repeat (); /* Not for the faint of heart */ |
94cc34af | 2170 | |
8cae4b3f PA |
2171 | if (args != NULL |
2172 | && strncmp (args, "-a", sizeof ("-a") - 1) == 0) | |
2173 | all_threads = 1; | |
2174 | ||
2175 | if (!non_stop && all_threads) | |
2176 | error (_("-a is meaningless in all-stop mode.")); | |
2177 | ||
77ebaa5a | 2178 | interrupt_target_1 (all_threads); |
43ff13b4 JM |
2179 | } |
2180 | } | |
2181 | ||
c906108c | 2182 | static void |
23e3a7ac AC |
2183 | print_float_info (struct gdbarch *gdbarch, struct ui_file *file, |
2184 | struct frame_info *frame, const char *args) | |
c906108c | 2185 | { |
23e3a7ac AC |
2186 | if (gdbarch_print_float_info_p (gdbarch)) |
2187 | gdbarch_print_float_info (gdbarch, file, frame, args); | |
2188 | else | |
2189 | { | |
23e3a7ac AC |
2190 | int regnum; |
2191 | int printed_something = 0; | |
ab4327e0 | 2192 | |
f57d151a | 2193 | for (regnum = 0; |
a4bd449d UW |
2194 | regnum < gdbarch_num_regs (gdbarch) |
2195 | + gdbarch_num_pseudo_regs (gdbarch); | |
f57d151a | 2196 | regnum++) |
23e3a7ac | 2197 | { |
f9418c0f | 2198 | if (gdbarch_register_reggroup_p (gdbarch, regnum, float_reggroup)) |
23e3a7ac AC |
2199 | { |
2200 | printed_something = 1; | |
23e3a7ac | 2201 | gdbarch_print_registers_info (gdbarch, file, frame, regnum, 1); |
23e3a7ac AC |
2202 | } |
2203 | } | |
2204 | if (!printed_something) | |
2205 | fprintf_filtered (file, "\ | |
2206 | No floating-point info available for this processor.\n"); | |
23e3a7ac AC |
2207 | } |
2208 | } | |
2209 | ||
2210 | static void | |
2211 | float_info (char *args, int from_tty) | |
2212 | { | |
206415a3 DJ |
2213 | if (!target_has_registers) |
2214 | error (_("The program has no registers now.")); | |
2215 | ||
1f5d0fc9 | 2216 | print_float_info (current_gdbarch, gdb_stdout, |
206415a3 | 2217 | get_selected_frame (NULL), args); |
c906108c SS |
2218 | } |
2219 | \f | |
c906108c | 2220 | static void |
fba45db2 | 2221 | unset_command (char *args, int from_tty) |
c906108c | 2222 | { |
a3f17187 AC |
2223 | printf_filtered (_("\ |
2224 | \"unset\" must be followed by the name of an unset subcommand.\n")); | |
c906108c SS |
2225 | help_list (unsetlist, "unset ", -1, gdb_stdout); |
2226 | } | |
2227 | ||
2228 | void | |
fba45db2 | 2229 | _initialize_infcmd (void) |
c906108c | 2230 | { |
3cb3b8df BR |
2231 | struct cmd_list_element *c = NULL; |
2232 | ||
2233 | /* add the filename of the terminal connected to inferior I/O */ | |
2234 | add_setshow_filename_cmd ("inferior-tty", class_run, | |
2235 | &inferior_io_terminal, _("\ | |
2236 | Set terminal for future runs of program being debugged."), _("\ | |
2237 | Show terminal for future runs of program being debugged."), _("\ | |
2238 | Usage: set inferior-tty /dev/pts/1"), NULL, NULL, &setlist, &showlist); | |
2239 | add_com_alias ("tty", "set inferior-tty", class_alias, 0); | |
c906108c | 2240 | |
b4b4ac0b AC |
2241 | add_setshow_optional_filename_cmd ("args", class_run, |
2242 | &inferior_args, _("\ | |
2243 | Set argument list to give program being debugged when it is started."), _("\ | |
2244 | Show argument list to give program being debugged when it is started."), _("\ | |
2245 | Follow this command with any number of args, to be passed to the program."), | |
2246 | notice_args_set, | |
2247 | notice_args_read, | |
2248 | &setlist, &showlist); | |
c906108c | 2249 | |
1a966eab AC |
2250 | c = add_cmd ("environment", no_class, environment_info, _("\ |
2251 | The environment to give the program, or one variable's value.\n\ | |
c906108c SS |
2252 | With an argument VAR, prints the value of environment variable VAR to\n\ |
2253 | give the program being debugged. With no arguments, prints the entire\n\ | |
1a966eab | 2254 | environment to be given to the program."), &showlist); |
5ba2abeb | 2255 | set_cmd_completer (c, noop_completer); |
c906108c SS |
2256 | |
2257 | add_prefix_cmd ("unset", no_class, unset_command, | |
1bedd215 | 2258 | _("Complement to certain \"set\" commands."), |
c906108c | 2259 | &unsetlist, "unset ", 0, &cmdlist); |
c5aa993b | 2260 | |
1a966eab AC |
2261 | c = add_cmd ("environment", class_run, unset_environment_command, _("\ |
2262 | Cancel environment variable VAR for the program.\n\ | |
2263 | This does not affect the program until the next \"run\" command."), | |
c5aa993b | 2264 | &unsetlist); |
5ba2abeb | 2265 | set_cmd_completer (c, noop_completer); |
c906108c | 2266 | |
1a966eab AC |
2267 | c = add_cmd ("environment", class_run, set_environment_command, _("\ |
2268 | Set environment variable value to give the program.\n\ | |
c906108c SS |
2269 | Arguments are VAR VALUE where VAR is variable name and VALUE is value.\n\ |
2270 | VALUES of environment variables are uninterpreted strings.\n\ | |
1a966eab | 2271 | This does not affect the program until the next \"run\" command."), |
c5aa993b | 2272 | &setlist); |
5ba2abeb | 2273 | set_cmd_completer (c, noop_completer); |
c5aa993b | 2274 | |
1bedd215 AC |
2275 | c = add_com ("path", class_files, path_command, _("\ |
2276 | Add directory DIR(s) to beginning of search path for object files.\n\ | |
c906108c SS |
2277 | $cwd in the path means the current working directory.\n\ |
2278 | This path is equivalent to the $PATH shell variable. It is a list of\n\ | |
2279 | directories, separated by colons. These directories are searched to find\n\ | |
1bedd215 | 2280 | fully linked executable files and separately compiled object files as needed.")); |
5ba2abeb | 2281 | set_cmd_completer (c, filename_completer); |
c906108c | 2282 | |
1a966eab AC |
2283 | c = add_cmd ("paths", no_class, path_info, _("\ |
2284 | Current search path for finding object files.\n\ | |
c906108c SS |
2285 | $cwd in the path means the current working directory.\n\ |
2286 | This path is equivalent to the $PATH shell variable. It is a list of\n\ | |
2287 | directories, separated by colons. These directories are searched to find\n\ | |
1a966eab | 2288 | fully linked executable files and separately compiled object files as needed."), |
c906108c | 2289 | &showlist); |
5ba2abeb | 2290 | set_cmd_completer (c, noop_completer); |
c906108c | 2291 | |
1bedd215 AC |
2292 | add_com ("attach", class_run, attach_command, _("\ |
2293 | Attach to a process or file outside of GDB.\n\ | |
c906108c SS |
2294 | This command attaches to another target, of the same type as your last\n\ |
2295 | \"target\" command (\"info files\" will show your target stack).\n\ | |
2296 | The command may take as argument a process id or a device file.\n\ | |
2297 | For a process id, you must have permission to send the process a signal,\n\ | |
2298 | and it must have the same effective uid as the debugger.\n\ | |
2299 | When using \"attach\" with a process id, the debugger finds the\n\ | |
2300 | program running in the process, looking first in the current working\n\ | |
2301 | directory, or (if not found there) using the source file search path\n\ | |
2302 | (see the \"directory\" command). You can also use the \"file\" command\n\ | |
1bedd215 | 2303 | to specify the program, and to load its symbol table.")); |
c906108c | 2304 | |
f73adfeb | 2305 | add_prefix_cmd ("detach", class_run, detach_command, _("\ |
1bedd215 | 2306 | Detach a process or file previously attached.\n\ |
c906108c | 2307 | If a process, it is no longer traced, and it continues its execution. If\n\ |
f73adfeb AS |
2308 | you were debugging a file, the file is closed and gdb no longer accesses it."), |
2309 | &detachlist, "detach ", 0, &cmdlist); | |
c906108c | 2310 | |
1bedd215 AC |
2311 | add_com ("disconnect", class_run, disconnect_command, _("\ |
2312 | Disconnect from a target.\n\ | |
6ad8ae5c | 2313 | The target will wait for another debugger to connect. Not available for\n\ |
1bedd215 | 2314 | all targets.")); |
6ad8ae5c | 2315 | |
1bedd215 AC |
2316 | add_com ("signal", class_run, signal_command, _("\ |
2317 | Continue program giving it signal specified by the argument.\n\ | |
2318 | An argument of \"0\" means continue program without giving it a signal.")); | |
c906108c | 2319 | |
1bedd215 AC |
2320 | add_com ("stepi", class_run, stepi_command, _("\ |
2321 | Step one instruction exactly.\n\ | |
2322 | Argument N means do this N times (or till program stops for another reason).")); | |
c906108c SS |
2323 | add_com_alias ("si", "stepi", class_alias, 0); |
2324 | ||
1bedd215 AC |
2325 | add_com ("nexti", class_run, nexti_command, _("\ |
2326 | Step one instruction, but proceed through subroutine calls.\n\ | |
2327 | Argument N means do this N times (or till program stops for another reason).")); | |
c906108c SS |
2328 | add_com_alias ("ni", "nexti", class_alias, 0); |
2329 | ||
1bedd215 AC |
2330 | add_com ("finish", class_run, finish_command, _("\ |
2331 | Execute until selected stack frame returns.\n\ | |
2332 | Upon return, the value returned is printed and put in the value history.")); | |
0e479716 | 2333 | add_com_alias ("fin", "finish", class_run, 1); |
c906108c | 2334 | |
1bedd215 AC |
2335 | add_com ("next", class_run, next_command, _("\ |
2336 | Step program, proceeding through subroutine calls.\n\ | |
c906108c SS |
2337 | Like the \"step\" command as long as subroutine calls do not happen;\n\ |
2338 | when they do, the call is treated as one instruction.\n\ | |
1bedd215 | 2339 | Argument N means do this N times (or till program stops for another reason).")); |
c906108c SS |
2340 | add_com_alias ("n", "next", class_run, 1); |
2341 | if (xdb_commands) | |
c5aa993b | 2342 | add_com_alias ("S", "next", class_run, 1); |
c906108c | 2343 | |
1bedd215 AC |
2344 | add_com ("step", class_run, step_command, _("\ |
2345 | Step program until it reaches a different source line.\n\ | |
2346 | Argument N means do this N times (or till program stops for another reason).")); | |
c906108c SS |
2347 | add_com_alias ("s", "step", class_run, 1); |
2348 | ||
1bedd215 AC |
2349 | c = add_com ("until", class_run, until_command, _("\ |
2350 | Execute until the program reaches a source line greater than the current\n\ | |
2351 | or a specified location (same args as break command) within the current frame.")); | |
5ba2abeb | 2352 | set_cmd_completer (c, location_completer); |
c906108c | 2353 | add_com_alias ("u", "until", class_run, 1); |
c5aa993b | 2354 | |
1bedd215 AC |
2355 | c = add_com ("advance", class_run, advance_command, _("\ |
2356 | Continue the program up to the given location (same form as args for break command).\n\ | |
2357 | Execution will also stop upon exit from the current stack frame.")); | |
ae66c1fc EZ |
2358 | set_cmd_completer (c, location_completer); |
2359 | ||
1bedd215 AC |
2360 | c = add_com ("jump", class_run, jump_command, _("\ |
2361 | Continue program being debugged at specified line or address.\n\ | |
c906108c | 2362 | Give as argument either LINENUM or *ADDR, where ADDR is an expression\n\ |
1bedd215 | 2363 | for an address to start at.")); |
5ba2abeb | 2364 | set_cmd_completer (c, location_completer); |
c906108c | 2365 | |
b83266a0 | 2366 | if (xdb_commands) |
c94fdfd0 | 2367 | { |
1bedd215 AC |
2368 | c = add_com ("go", class_run, go_command, _("\ |
2369 | Usage: go <location>\n\ | |
c906108c SS |
2370 | Continue program being debugged, stopping at specified line or \n\ |
2371 | address.\n\ | |
2372 | Give as argument either LINENUM or *ADDR, where ADDR is an \n\ | |
2373 | expression for an address to start at.\n\ | |
1bedd215 | 2374 | This command is a combination of tbreak and jump.")); |
5ba2abeb | 2375 | set_cmd_completer (c, location_completer); |
c94fdfd0 | 2376 | } |
b83266a0 | 2377 | |
c906108c | 2378 | if (xdb_commands) |
c5aa993b | 2379 | add_com_alias ("g", "go", class_run, 1); |
c906108c | 2380 | |
8cae4b3f | 2381 | c = add_com ("continue", class_run, continue_command, _("\ |
1bedd215 | 2382 | Continue program being debugged, after signal or breakpoint.\n\ |
c906108c SS |
2383 | If proceeding from breakpoint, a number N may be used as an argument,\n\ |
2384 | which means to set the ignore count of that breakpoint to N - 1 (so that\n\ | |
8cae4b3f PA |
2385 | the breakpoint won't break until the Nth time it is reached).\n\ |
2386 | \n\ | |
2387 | If non-stop mode is enabled, continue only the current thread,\n\ | |
2388 | otherwise all the threads in the program are continued. To \n\ | |
2389 | continue all stopped threads in non-stop mode, use the -a option.\n\ | |
2390 | Specifying -a and an ignore count simultaneously is an error.")); | |
c906108c SS |
2391 | add_com_alias ("c", "cont", class_run, 1); |
2392 | add_com_alias ("fg", "cont", class_run, 1); | |
8cae4b3f | 2393 | set_cmd_async_ok (c); |
c906108c | 2394 | |
1bedd215 AC |
2395 | c = add_com ("run", class_run, run_command, _("\ |
2396 | Start debugged program. You may specify arguments to give it.\n\ | |
c906108c SS |
2397 | Args may include \"*\", or \"[...]\"; they are expanded using \"sh\".\n\ |
2398 | Input and output redirection with \">\", \"<\", or \">>\" are also allowed.\n\n\ | |
2399 | With no arguments, uses arguments last specified (with \"run\" or \"set args\").\n\ | |
2400 | To cancel previous arguments and run with no arguments,\n\ | |
1bedd215 | 2401 | use \"set args\" without arguments.")); |
5ba2abeb | 2402 | set_cmd_completer (c, filename_completer); |
c906108c SS |
2403 | add_com_alias ("r", "run", class_run, 1); |
2404 | if (xdb_commands) | |
2405 | add_com ("R", class_run, run_no_args_command, | |
1bedd215 | 2406 | _("Start debugged program with no arguments.")); |
c906108c | 2407 | |
1bedd215 | 2408 | c = add_com ("start", class_run, start_command, _("\ |
a4d5f2e0 JB |
2409 | Run the debugged program until the beginning of the main procedure.\n\ |
2410 | You may specify arguments to give to your program, just as with the\n\ | |
1bedd215 | 2411 | \"run\" command.")); |
a4d5f2e0 JB |
2412 | set_cmd_completer (c, filename_completer); |
2413 | ||
700b53b1 | 2414 | c = add_com ("interrupt", class_run, interrupt_target_command, |
8cae4b3f PA |
2415 | _("Interrupt the execution of the debugged program.\n\ |
2416 | If non-stop mode is enabled, interrupt only the current thread,\n\ | |
2417 | otherwise all the threads in the program are stopped. To \n\ | |
2418 | interrupt all running threads in non-stop mode, use the -a option.")); | |
700b53b1 | 2419 | set_cmd_async_ok (c); |
43ff13b4 | 2420 | |
1bedd215 AC |
2421 | add_info ("registers", nofp_registers_info, _("\ |
2422 | List of integer registers and their contents, for selected stack frame.\n\ | |
2423 | Register name as argument means describe only that register.")); | |
7194c49b | 2424 | add_info_alias ("r", "registers", 1); |
c906108c SS |
2425 | |
2426 | if (xdb_commands) | |
1bedd215 AC |
2427 | add_com ("lr", class_info, nofp_registers_info, _("\ |
2428 | List of integer registers and their contents, for selected stack frame.\n\ | |
2429 | Register name as argument means describe only that register.")); | |
2430 | add_info ("all-registers", all_registers_info, _("\ | |
2431 | List of all registers and their contents, for selected stack frame.\n\ | |
2432 | Register name as argument means describe only that register.")); | |
c906108c SS |
2433 | |
2434 | add_info ("program", program_info, | |
1bedd215 | 2435 | _("Execution status of the program.")); |
c906108c SS |
2436 | |
2437 | add_info ("float", float_info, | |
1bedd215 | 2438 | _("Print the status of the floating point unit\n")); |
c906108c | 2439 | |
e76f1f2e | 2440 | add_info ("vector", vector_info, |
1bedd215 | 2441 | _("Print the status of the vector unit\n")); |
e76f1f2e | 2442 | |
c906108c SS |
2443 | inferior_environ = make_environ (); |
2444 | init_environ (inferior_environ); | |
2445 | } |