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 | |
f107f563 VP |
76 | static void finish_command_continuation (struct continuation_arg *, |
77 | int error_p); | |
43ff13b4 | 78 | |
a14ed312 | 79 | static void until_next_command (int); |
c906108c | 80 | |
a14ed312 | 81 | static void until_command (char *, int); |
c906108c | 82 | |
a14ed312 | 83 | static void path_info (char *, int); |
c906108c | 84 | |
a14ed312 | 85 | static void path_command (char *, int); |
c906108c | 86 | |
a14ed312 | 87 | static void unset_command (char *, int); |
c906108c | 88 | |
a14ed312 | 89 | static void float_info (char *, int); |
c906108c | 90 | |
a14ed312 | 91 | static void detach_command (char *, int); |
c906108c | 92 | |
6ad8ae5c DJ |
93 | static void disconnect_command (char *, int); |
94 | ||
a14ed312 | 95 | static void unset_environment_command (char *, int); |
c906108c | 96 | |
a14ed312 | 97 | static void set_environment_command (char *, int); |
c906108c | 98 | |
a14ed312 | 99 | static void environment_info (char *, int); |
c906108c | 100 | |
a14ed312 | 101 | static void program_info (char *, int); |
c906108c | 102 | |
a14ed312 | 103 | static void finish_command (char *, int); |
c906108c | 104 | |
a14ed312 | 105 | static void signal_command (char *, int); |
c906108c | 106 | |
a14ed312 | 107 | static void jump_command (char *, int); |
c906108c | 108 | |
a14ed312 | 109 | static void step_1 (int, int, char *); |
611c83ae | 110 | static void step_once (int skip_subroutines, int single_inst, int count, int thread); |
f107f563 | 111 | static void step_1_continuation (struct continuation_arg *arg, int error_p); |
c906108c | 112 | |
a14ed312 | 113 | static void next_command (char *, int); |
c906108c | 114 | |
a14ed312 | 115 | static void step_command (char *, int); |
c906108c | 116 | |
a14ed312 | 117 | static void run_command (char *, int); |
c906108c | 118 | |
a14ed312 | 119 | static void run_no_args_command (char *args, int from_tty); |
392a587b | 120 | |
a14ed312 | 121 | static void go_command (char *line_no, int from_tty); |
392a587b | 122 | |
a14ed312 | 123 | static int strip_bg_char (char **); |
43ff13b4 | 124 | |
a14ed312 | 125 | void _initialize_infcmd (void); |
c906108c SS |
126 | |
127 | #define GO_USAGE "Usage: go <location>\n" | |
128 | ||
c906108c | 129 | #define ERROR_NO_INFERIOR \ |
8a3fe4f8 | 130 | if (!target_has_execution) error (_("The program is not being run.")); |
c906108c SS |
131 | |
132 | /* String containing arguments to give to the program, separated by spaces. | |
133 | Empty string (pointer to '\0') means no args. */ | |
134 | ||
135 | static char *inferior_args; | |
136 | ||
552c04a7 TT |
137 | /* The inferior arguments as a vector. If INFERIOR_ARGC is nonzero, |
138 | then we must compute INFERIOR_ARGS from this (via the target). */ | |
139 | ||
140 | static int inferior_argc; | |
141 | static char **inferior_argv; | |
142 | ||
c906108c SS |
143 | /* File name for default use for standard in/out in the inferior. */ |
144 | ||
3cb3b8df | 145 | static char *inferior_io_terminal; |
c906108c SS |
146 | |
147 | /* Pid of our debugged inferior, or 0 if no inferior now. | |
148 | Since various parts of infrun.c test this to see whether there is a program | |
149 | being debugged it should be nonzero (currently 3 is used) for remote | |
150 | debugging. */ | |
151 | ||
39f77062 | 152 | ptid_t inferior_ptid; |
c906108c SS |
153 | |
154 | /* Last signal that the inferior received (why it stopped). */ | |
155 | ||
156 | enum target_signal stop_signal; | |
157 | ||
158 | /* Address at which inferior stopped. */ | |
159 | ||
160 | CORE_ADDR stop_pc; | |
161 | ||
162 | /* Chain containing status of breakpoint(s) that we have stopped at. */ | |
163 | ||
164 | bpstat stop_bpstat; | |
165 | ||
166 | /* Flag indicating that a command has proceeded the inferior past the | |
167 | current breakpoint. */ | |
168 | ||
169 | int breakpoint_proceeded; | |
170 | ||
171 | /* Nonzero if stopped due to a step command. */ | |
172 | ||
173 | int stop_step; | |
174 | ||
175 | /* Nonzero if stopped due to completion of a stack dummy routine. */ | |
176 | ||
177 | int stop_stack_dummy; | |
178 | ||
179 | /* Nonzero if stopped due to a random (unexpected) signal in inferior | |
180 | process. */ | |
181 | ||
182 | int stopped_by_random_signal; | |
183 | ||
184 | /* Range to single step within. | |
185 | If this is nonzero, respond to a single-step signal | |
186 | by continuing to step if the pc is in this range. */ | |
187 | ||
c5aa993b JM |
188 | CORE_ADDR step_range_start; /* Inclusive */ |
189 | CORE_ADDR step_range_end; /* Exclusive */ | |
c906108c SS |
190 | |
191 | /* Stack frame address as of when stepping command was issued. | |
192 | This is how we know when we step into a subroutine call, | |
193 | and how to set the frame for the breakpoint used to step out. */ | |
194 | ||
aa0cd9c1 | 195 | struct frame_id step_frame_id; |
c906108c | 196 | |
5fbbeb29 | 197 | enum step_over_calls_kind step_over_calls; |
c906108c SS |
198 | |
199 | /* If stepping, nonzero means step count is > 1 | |
200 | so don't print frame next time inferior stops | |
201 | if it stops due to stepping. */ | |
202 | ||
203 | int step_multi; | |
204 | ||
205 | /* Environment to use for running inferior, | |
206 | in format described in environ.h. */ | |
207 | ||
1bf1958d | 208 | struct gdb_environ *inferior_environ; |
f5871ec0 | 209 | |
8f6a8e84 VP |
210 | /* When set, no calls to target_resumed observer will be made. */ |
211 | int suppress_resume_observer = 0; | |
212 | /* When set, normal_stop will not call the normal_stop observer. */ | |
213 | int suppress_stop_observer = 0; | |
c906108c | 214 | \f |
07091751 FN |
215 | /* Accessor routines. */ |
216 | ||
3cb3b8df BR |
217 | void |
218 | set_inferior_io_terminal (const char *terminal_name) | |
219 | { | |
220 | if (inferior_io_terminal) | |
221 | xfree (inferior_io_terminal); | |
222 | ||
223 | if (!terminal_name) | |
224 | inferior_io_terminal = NULL; | |
225 | else | |
226 | inferior_io_terminal = savestring (terminal_name, strlen (terminal_name)); | |
227 | } | |
228 | ||
229 | const char * | |
230 | get_inferior_io_terminal (void) | |
231 | { | |
232 | return inferior_io_terminal; | |
233 | } | |
234 | ||
07091751 FN |
235 | char * |
236 | get_inferior_args (void) | |
237 | { | |
552c04a7 TT |
238 | if (inferior_argc != 0) |
239 | { | |
240 | char *n, *old; | |
241 | ||
242 | n = gdbarch_construct_inferior_arguments (current_gdbarch, | |
243 | inferior_argc, inferior_argv); | |
244 | old = set_inferior_args (n); | |
245 | xfree (old); | |
246 | } | |
247 | ||
248 | if (inferior_args == NULL) | |
249 | inferior_args = xstrdup (""); | |
250 | ||
07091751 FN |
251 | return inferior_args; |
252 | } | |
253 | ||
254 | char * | |
255 | set_inferior_args (char *newargs) | |
256 | { | |
257 | char *saved_args = inferior_args; | |
258 | ||
259 | inferior_args = newargs; | |
552c04a7 TT |
260 | inferior_argc = 0; |
261 | inferior_argv = 0; | |
07091751 FN |
262 | |
263 | return saved_args; | |
264 | } | |
c5aa993b | 265 | |
552c04a7 TT |
266 | void |
267 | set_inferior_args_vector (int argc, char **argv) | |
268 | { | |
269 | inferior_argc = argc; | |
270 | inferior_argv = argv; | |
271 | } | |
272 | ||
273 | /* Notice when `set args' is run. */ | |
274 | static void | |
275 | notice_args_set (char *args, int from_tty, struct cmd_list_element *c) | |
276 | { | |
277 | inferior_argc = 0; | |
278 | inferior_argv = 0; | |
279 | } | |
280 | ||
281 | /* Notice when `show args' is run. */ | |
282 | static void | |
b4b4ac0b AC |
283 | notice_args_read (struct ui_file *file, int from_tty, |
284 | struct cmd_list_element *c, const char *value) | |
552c04a7 | 285 | { |
258c00cc TT |
286 | /* Note that we ignore the passed-in value in favor of computing it |
287 | directly. */ | |
288 | deprecated_show_value_hack (file, from_tty, c, get_inferior_args ()); | |
552c04a7 TT |
289 | } |
290 | ||
c2a727fa TT |
291 | \f |
292 | /* Compute command-line string given argument vector. This does the | |
293 | same shell processing as fork_inferior. */ | |
c2a727fa TT |
294 | char * |
295 | construct_inferior_arguments (struct gdbarch *gdbarch, int argc, char **argv) | |
296 | { | |
297 | char *result; | |
298 | ||
299 | if (STARTUP_WITH_SHELL) | |
300 | { | |
301 | /* This holds all the characters considered special to the | |
302 | typical Unix shells. We include `^' because the SunOS | |
303 | /bin/sh treats it as a synonym for `|'. */ | |
304 | char *special = "\"!#$&*()\\|[]{}<>?'\"`~^; \t\n"; | |
305 | int i; | |
306 | int length = 0; | |
307 | char *out, *cp; | |
308 | ||
309 | /* We over-compute the size. It shouldn't matter. */ | |
310 | for (i = 0; i < argc; ++i) | |
03c6228e | 311 | length += 2 * strlen (argv[i]) + 1 + 2 * (argv[i][0] == '\0'); |
c2a727fa TT |
312 | |
313 | result = (char *) xmalloc (length); | |
314 | out = result; | |
315 | ||
316 | for (i = 0; i < argc; ++i) | |
317 | { | |
318 | if (i > 0) | |
319 | *out++ = ' '; | |
320 | ||
03c6228e AS |
321 | /* Need to handle empty arguments specially. */ |
322 | if (argv[i][0] == '\0') | |
c2a727fa | 323 | { |
03c6228e AS |
324 | *out++ = '\''; |
325 | *out++ = '\''; | |
326 | } | |
327 | else | |
328 | { | |
329 | for (cp = argv[i]; *cp; ++cp) | |
330 | { | |
331 | if (strchr (special, *cp) != NULL) | |
332 | *out++ = '\\'; | |
333 | *out++ = *cp; | |
334 | } | |
c2a727fa TT |
335 | } |
336 | } | |
337 | *out = '\0'; | |
338 | } | |
339 | else | |
340 | { | |
341 | /* In this case we can't handle arguments that contain spaces, | |
342 | tabs, or newlines -- see breakup_args(). */ | |
343 | int i; | |
344 | int length = 0; | |
345 | ||
346 | for (i = 0; i < argc; ++i) | |
347 | { | |
348 | char *cp = strchr (argv[i], ' '); | |
349 | if (cp == NULL) | |
350 | cp = strchr (argv[i], '\t'); | |
351 | if (cp == NULL) | |
352 | cp = strchr (argv[i], '\n'); | |
353 | if (cp != NULL) | |
8a3fe4f8 | 354 | error (_("can't handle command-line argument containing whitespace")); |
c2a727fa TT |
355 | length += strlen (argv[i]) + 1; |
356 | } | |
357 | ||
358 | result = (char *) xmalloc (length); | |
359 | result[0] = '\0'; | |
360 | for (i = 0; i < argc; ++i) | |
361 | { | |
362 | if (i > 0) | |
363 | strcat (result, " "); | |
364 | strcat (result, argv[i]); | |
365 | } | |
366 | } | |
367 | ||
368 | return result; | |
369 | } | |
552c04a7 TT |
370 | \f |
371 | ||
43ff13b4 JM |
372 | /* This function detects whether or not a '&' character (indicating |
373 | background execution) has been added as *the last* of the arguments ARGS | |
374 | of a command. If it has, it removes it and returns 1. Otherwise it | |
375 | does nothing and returns 0. */ | |
c5aa993b | 376 | static int |
fba45db2 | 377 | strip_bg_char (char **args) |
43ff13b4 JM |
378 | { |
379 | char *p = NULL; | |
c5aa993b | 380 | |
9846de1b | 381 | p = strchr (*args, '&'); |
c5aa993b | 382 | |
9846de1b | 383 | if (p) |
43ff13b4 JM |
384 | { |
385 | if (p == (*args + strlen (*args) - 1)) | |
386 | { | |
c5aa993b | 387 | if (strlen (*args) > 1) |
43ff13b4 JM |
388 | { |
389 | do | |
390 | p--; | |
391 | while (*p == ' ' || *p == '\t'); | |
392 | *(p + 1) = '\0'; | |
393 | } | |
394 | else | |
395 | *args = 0; | |
396 | return 1; | |
397 | } | |
398 | } | |
399 | return 0; | |
400 | } | |
401 | ||
c906108c | 402 | void |
fba45db2 | 403 | tty_command (char *file, int from_tty) |
c906108c SS |
404 | { |
405 | if (file == 0) | |
e2e0b3e5 | 406 | error_no_arg (_("terminal name for running target process")); |
c906108c | 407 | |
3cb3b8df | 408 | set_inferior_io_terminal (file); |
c906108c SS |
409 | } |
410 | ||
281b533b DJ |
411 | /* Common actions to take after creating any sort of inferior, by any |
412 | means (running, attaching, connecting, et cetera). The target | |
413 | should be stopped. */ | |
414 | ||
415 | void | |
416 | post_create_inferior (struct target_ops *target, int from_tty) | |
417 | { | |
b79599ff DP |
418 | /* Be sure we own the terminal in case write operations are performed. */ |
419 | target_terminal_ours (); | |
420 | ||
424163ea DJ |
421 | /* If the target hasn't taken care of this already, do it now. |
422 | Targets which need to access registers during to_open, | |
423 | to_create_inferior, or to_attach should do it earlier; but many | |
424 | don't need to. */ | |
425 | target_find_description (); | |
426 | ||
9353355f DJ |
427 | if (exec_bfd) |
428 | { | |
429 | /* Sometimes the platform-specific hook loads initial shared | |
430 | libraries, and sometimes it doesn't. Try to do so first, so | |
de1b3c3d PA |
431 | that we can add them with the correct value for FROM_TTY. |
432 | If we made all the inferior hook methods consistent, | |
433 | this call could be removed. */ | |
9353355f DJ |
434 | #ifdef SOLIB_ADD |
435 | SOLIB_ADD (NULL, from_tty, target, auto_solib_add); | |
436 | #else | |
437 | solib_add (NULL, from_tty, target, auto_solib_add); | |
438 | #endif | |
439 | ||
440 | /* Create the hooks to handle shared library load and unload | |
441 | events. */ | |
442 | #ifdef SOLIB_CREATE_INFERIOR_HOOK | |
37706b70 | 443 | SOLIB_CREATE_INFERIOR_HOOK (PIDGET (inferior_ptid)); |
9353355f DJ |
444 | #else |
445 | solib_create_inferior_hook (); | |
446 | #endif | |
9353355f DJ |
447 | } |
448 | ||
281b533b DJ |
449 | observer_notify_inferior_created (target, from_tty); |
450 | } | |
451 | ||
a4d5f2e0 JB |
452 | /* Kill the inferior if already running. This function is designed |
453 | to be called when we are about to start the execution of the program | |
454 | from the beginning. Ask the user to confirm that he wants to restart | |
455 | the program being debugged when FROM_TTY is non-null. */ | |
c906108c | 456 | |
8edfe269 | 457 | static void |
a4d5f2e0 JB |
458 | kill_if_already_running (int from_tty) |
459 | { | |
39f77062 | 460 | if (! ptid_equal (inferior_ptid, null_ptid) && target_has_execution) |
c906108c | 461 | { |
8edfe269 DJ |
462 | /* Bail out before killing the program if we will not be able to |
463 | restart it. */ | |
464 | target_require_runnable (); | |
465 | ||
adf40b2e JM |
466 | if (from_tty |
467 | && !query ("The program being debugged has been started already.\n\ | |
c906108c | 468 | Start it from the beginning? ")) |
8a3fe4f8 | 469 | error (_("Program not restarted.")); |
c906108c | 470 | target_kill (); |
e85a822c | 471 | no_shared_libraries (NULL, from_tty); |
c906108c SS |
472 | init_wait_for_inferior (); |
473 | } | |
a4d5f2e0 JB |
474 | } |
475 | ||
f67a969f JB |
476 | /* Implement the "run" command. If TBREAK_AT_MAIN is set, then insert |
477 | a temporary breakpoint at the begining of the main program before | |
478 | running the program. */ | |
479 | ||
a4d5f2e0 | 480 | static void |
f67a969f | 481 | run_command_1 (char *args, int from_tty, int tbreak_at_main) |
a4d5f2e0 JB |
482 | { |
483 | char *exec_file; | |
c906108c | 484 | |
a4d5f2e0 JB |
485 | dont_repeat (); |
486 | ||
487 | kill_if_already_running (from_tty); | |
c906108c SS |
488 | clear_breakpoint_hit_counts (); |
489 | ||
fd79ecee DJ |
490 | /* Clean up any leftovers from other runs. Some other things from |
491 | this function should probably be moved into target_pre_inferior. */ | |
492 | target_pre_inferior (from_tty); | |
493 | ||
c906108c SS |
494 | /* Purge old solib objfiles. */ |
495 | objfile_purge_solibs (); | |
496 | ||
615b9dba | 497 | clear_solib (); |
c906108c | 498 | |
39ad761d JB |
499 | /* The comment here used to read, "The exec file is re-read every |
500 | time we do a generic_mourn_inferior, so we just have to worry | |
501 | about the symbol file." The `generic_mourn_inferior' function | |
502 | gets called whenever the program exits. However, suppose the | |
503 | program exits, and *then* the executable file changes? We need | |
504 | to check again here. Since reopen_exec_file doesn't do anything | |
505 | if the timestamp hasn't changed, I don't see the harm. */ | |
506 | reopen_exec_file (); | |
c906108c SS |
507 | reread_symbols (); |
508 | ||
f67a969f JB |
509 | /* Insert the temporary breakpoint if a location was specified. */ |
510 | if (tbreak_at_main) | |
511 | tbreak_command (main_name (), 0); | |
512 | ||
39ad761d JB |
513 | exec_file = (char *) get_exec_file (0); |
514 | ||
c906108c SS |
515 | /* We keep symbols from add-symbol-file, on the grounds that the |
516 | user might want to add some symbols before running the program | |
517 | (right?). But sometimes (dynamic loading where the user manually | |
518 | introduces the new symbols with add-symbol-file), the code which | |
519 | the symbols describe does not persist between runs. Currently | |
520 | the user has to manually nuke all symbols between runs if they | |
521 | want them to go away (PR 2207). This is probably reasonable. */ | |
522 | ||
43ff13b4 | 523 | if (!args) |
6426a772 | 524 | { |
362646f5 | 525 | if (target_can_async_p ()) |
6426a772 JM |
526 | async_disable_stdin (); |
527 | } | |
43ff13b4 | 528 | else |
c906108c | 529 | { |
43ff13b4 JM |
530 | int async_exec = strip_bg_char (&args); |
531 | ||
532 | /* If we get a request for running in the bg but the target | |
533 | doesn't support it, error out. */ | |
362646f5 | 534 | if (async_exec && !target_can_async_p ()) |
8a3fe4f8 | 535 | error (_("Asynchronous execution not supported on this target.")); |
43ff13b4 JM |
536 | |
537 | /* If we don't get a request of running in the bg, then we need | |
c5aa993b | 538 | to simulate synchronous (fg) execution. */ |
362646f5 | 539 | if (!async_exec && target_can_async_p ()) |
43ff13b4 JM |
540 | { |
541 | /* Simulate synchronous execution */ | |
6426a772 | 542 | async_disable_stdin (); |
43ff13b4 JM |
543 | } |
544 | ||
545 | /* If there were other args, beside '&', process them. */ | |
546 | if (args) | |
547 | { | |
07091751 FN |
548 | char *old_args = set_inferior_args (xstrdup (args)); |
549 | xfree (old_args); | |
43ff13b4 | 550 | } |
c906108c SS |
551 | } |
552 | ||
553 | if (from_tty) | |
554 | { | |
8b93c638 JM |
555 | ui_out_field_string (uiout, NULL, "Starting program"); |
556 | ui_out_text (uiout, ": "); | |
557 | if (exec_file) | |
558 | ui_out_field_string (uiout, "execfile", exec_file); | |
559 | ui_out_spaces (uiout, 1); | |
552c04a7 TT |
560 | /* We call get_inferior_args() because we might need to compute |
561 | the value now. */ | |
562 | ui_out_field_string (uiout, "infargs", get_inferior_args ()); | |
8b93c638 JM |
563 | ui_out_text (uiout, "\n"); |
564 | ui_out_flush (uiout); | |
c906108c SS |
565 | } |
566 | ||
552c04a7 TT |
567 | /* We call get_inferior_args() because we might need to compute |
568 | the value now. */ | |
569 | target_create_inferior (exec_file, get_inferior_args (), | |
c27cda74 | 570 | environ_vector (inferior_environ), from_tty); |
281b533b | 571 | |
de1b3c3d PA |
572 | /* Pass zero for FROM_TTY, because at this point the "run" command |
573 | has done its thing; now we are setting up the running program. */ | |
574 | post_create_inferior (¤t_target, 0); | |
281b533b DJ |
575 | |
576 | /* Start the target running. */ | |
577 | proceed ((CORE_ADDR) -1, TARGET_SIGNAL_0, 0); | |
c906108c SS |
578 | } |
579 | ||
580 | ||
f67a969f JB |
581 | static void |
582 | run_command (char *args, int from_tty) | |
583 | { | |
584 | run_command_1 (args, from_tty, 0); | |
585 | } | |
586 | ||
c906108c | 587 | static void |
fba45db2 | 588 | run_no_args_command (char *args, int from_tty) |
c906108c | 589 | { |
07091751 FN |
590 | char *old_args = set_inferior_args (xstrdup ("")); |
591 | xfree (old_args); | |
c906108c | 592 | } |
c906108c | 593 | \f |
c5aa993b | 594 | |
a4d5f2e0 JB |
595 | /* Start the execution of the program up until the beginning of the main |
596 | program. */ | |
597 | ||
598 | static void | |
599 | start_command (char *args, int from_tty) | |
600 | { | |
601 | /* Some languages such as Ada need to search inside the program | |
602 | minimal symbols for the location where to put the temporary | |
603 | breakpoint before starting. */ | |
604 | if (!have_minimal_symbols ()) | |
8a3fe4f8 | 605 | error (_("No symbol table loaded. Use the \"file\" command.")); |
a4d5f2e0 | 606 | |
f67a969f JB |
607 | /* Run the program until reaching the main procedure... */ |
608 | run_command_1 (args, from_tty, 1); | |
a4d5f2e0 JB |
609 | } |
610 | ||
8cae4b3f PA |
611 | static int |
612 | proceed_thread_callback (struct thread_info *thread, void *arg) | |
613 | { | |
4f8d22e3 | 614 | if (!is_stopped (thread->ptid)) |
8cae4b3f PA |
615 | return 0; |
616 | ||
617 | context_switch_to (thread->ptid); | |
618 | clear_proceed_status (); | |
619 | proceed ((CORE_ADDR) -1, TARGET_SIGNAL_DEFAULT, 0); | |
620 | return 0; | |
621 | } | |
622 | ||
623 | /* continue [-a] [proceed-count] [&] */ | |
c906108c | 624 | void |
8cae4b3f | 625 | continue_command (char *args, int from_tty) |
c906108c | 626 | { |
c5aa993b | 627 | int async_exec = 0; |
8cae4b3f | 628 | int all_threads = 0; |
c906108c SS |
629 | ERROR_NO_INFERIOR; |
630 | ||
43ff13b4 | 631 | /* Find out whether we must run in the background. */ |
8cae4b3f PA |
632 | if (args != NULL) |
633 | async_exec = strip_bg_char (&args); | |
43ff13b4 JM |
634 | |
635 | /* If we must run in the background, but the target can't do it, | |
636 | error out. */ | |
362646f5 | 637 | if (async_exec && !target_can_async_p ()) |
8a3fe4f8 | 638 | error (_("Asynchronous execution not supported on this target.")); |
43ff13b4 JM |
639 | |
640 | /* If we are not asked to run in the bg, then prepare to run in the | |
641 | foreground, synchronously. */ | |
362646f5 | 642 | if (!async_exec && target_can_async_p ()) |
c5aa993b | 643 | { |
43ff13b4 | 644 | /* Simulate synchronous execution */ |
6426a772 | 645 | async_disable_stdin (); |
43ff13b4 | 646 | } |
c906108c | 647 | |
8cae4b3f PA |
648 | if (args != NULL) |
649 | { | |
650 | if (strncmp (args, "-a", sizeof ("-a") - 1) == 0) | |
651 | { | |
652 | all_threads = 1; | |
653 | args += sizeof ("-a") - 1; | |
654 | if (*args == '\0') | |
655 | args = NULL; | |
656 | } | |
657 | } | |
658 | ||
659 | if (!non_stop && all_threads) | |
660 | error (_("`-a' is meaningless in all-stop mode.")); | |
661 | ||
662 | if (args != NULL && all_threads) | |
663 | error (_("\ | |
664 | Can't resume all threads and specify proceed count simultaneously.")); | |
665 | ||
666 | /* If we have an argument left, set proceed count of breakpoint we | |
667 | stopped at. */ | |
668 | if (args != NULL) | |
c906108c SS |
669 | { |
670 | bpstat bs = stop_bpstat; | |
8671a17b PA |
671 | int num, stat; |
672 | int stopped = 0; | |
673 | ||
674 | while ((stat = bpstat_num (&bs, &num)) != 0) | |
675 | if (stat > 0) | |
676 | { | |
677 | set_ignore_count (num, | |
8cae4b3f | 678 | parse_and_eval_long (args) - 1, |
8671a17b PA |
679 | from_tty); |
680 | /* set_ignore_count prints a message ending with a period. | |
681 | So print two spaces before "Continuing.". */ | |
682 | if (from_tty) | |
683 | printf_filtered (" "); | |
684 | stopped = 1; | |
685 | } | |
686 | ||
687 | if (!stopped && from_tty) | |
c906108c SS |
688 | { |
689 | printf_filtered | |
690 | ("Not stopped at any breakpoint; argument ignored.\n"); | |
691 | } | |
c906108c SS |
692 | } |
693 | ||
694 | if (from_tty) | |
a3f17187 | 695 | printf_filtered (_("Continuing.\n")); |
c906108c | 696 | |
8cae4b3f PA |
697 | if (non_stop && all_threads) |
698 | { | |
8cae4b3f PA |
699 | /* Don't error out if the current thread is running, because |
700 | there may be other stopped threads. */ | |
4f8d22e3 | 701 | struct cleanup *old_chain; |
8cae4b3f PA |
702 | |
703 | /* Backup current thread and selected frame. */ | |
4f8d22e3 | 704 | old_chain = make_cleanup_restore_current_thread (); |
8cae4b3f | 705 | |
8cae4b3f PA |
706 | iterate_over_threads (proceed_thread_callback, NULL); |
707 | ||
708 | /* Restore selected ptid. */ | |
709 | do_cleanups (old_chain); | |
710 | } | |
711 | else | |
712 | { | |
713 | ensure_not_running (); | |
714 | clear_proceed_status (); | |
715 | proceed ((CORE_ADDR) -1, TARGET_SIGNAL_DEFAULT, 0); | |
716 | } | |
c906108c SS |
717 | } |
718 | \f | |
719 | /* Step until outside of current statement. */ | |
720 | ||
c906108c | 721 | static void |
fba45db2 | 722 | step_command (char *count_string, int from_tty) |
c906108c SS |
723 | { |
724 | step_1 (0, 0, count_string); | |
725 | } | |
726 | ||
727 | /* Likewise, but skip over subroutine calls as if single instructions. */ | |
728 | ||
c906108c | 729 | static void |
fba45db2 | 730 | next_command (char *count_string, int from_tty) |
c906108c SS |
731 | { |
732 | step_1 (1, 0, count_string); | |
733 | } | |
734 | ||
735 | /* Likewise, but step only one instruction. */ | |
736 | ||
c906108c | 737 | void |
fba45db2 | 738 | stepi_command (char *count_string, int from_tty) |
c906108c SS |
739 | { |
740 | step_1 (0, 1, count_string); | |
741 | } | |
742 | ||
c906108c | 743 | void |
fba45db2 | 744 | nexti_command (char *count_string, int from_tty) |
c906108c SS |
745 | { |
746 | step_1 (1, 1, count_string); | |
747 | } | |
748 | ||
74b7792f | 749 | static void |
611c83ae | 750 | delete_longjmp_breakpoint_cleanup (void *arg) |
74b7792f | 751 | { |
611c83ae PA |
752 | int thread = * (int *) arg; |
753 | delete_longjmp_breakpoint (thread); | |
74b7792f AC |
754 | } |
755 | ||
c906108c | 756 | static void |
fba45db2 | 757 | step_1 (int skip_subroutines, int single_inst, char *count_string) |
c906108c | 758 | { |
52f0bd74 | 759 | int count = 1; |
c906108c | 760 | struct frame_info *frame; |
f107f563 | 761 | struct cleanup *cleanups = make_cleanup (null_cleanup, NULL); |
43ff13b4 | 762 | int async_exec = 0; |
b3dc826b | 763 | int thread = -1; |
c5aa993b | 764 | |
c906108c | 765 | ERROR_NO_INFERIOR; |
94cc34af | 766 | ensure_not_running (); |
43ff13b4 JM |
767 | |
768 | if (count_string) | |
769 | async_exec = strip_bg_char (&count_string); | |
c5aa993b | 770 | |
43ff13b4 JM |
771 | /* If we get a request for running in the bg but the target |
772 | doesn't support it, error out. */ | |
362646f5 | 773 | if (async_exec && !target_can_async_p ()) |
8a3fe4f8 | 774 | error (_("Asynchronous execution not supported on this target.")); |
43ff13b4 JM |
775 | |
776 | /* If we don't get a request of running in the bg, then we need | |
777 | to simulate synchronous (fg) execution. */ | |
362646f5 | 778 | if (!async_exec && target_can_async_p ()) |
43ff13b4 JM |
779 | { |
780 | /* Simulate synchronous execution */ | |
6426a772 | 781 | async_disable_stdin (); |
43ff13b4 JM |
782 | } |
783 | ||
bb518678 | 784 | count = count_string ? parse_and_eval_long (count_string) : 1; |
c906108c | 785 | |
c5aa993b | 786 | if (!single_inst || skip_subroutines) /* leave si command alone */ |
c906108c | 787 | { |
611c83ae | 788 | if (in_thread_list (inferior_ptid)) |
b3dc826b | 789 | thread = pid_to_thread_id (inferior_ptid); |
611c83ae PA |
790 | |
791 | set_longjmp_breakpoint (); | |
792 | ||
b3dc826b | 793 | make_cleanup (delete_longjmp_breakpoint_cleanup, &thread); |
c2d11a7d JM |
794 | } |
795 | ||
796 | /* In synchronous case, all is well, just use the regular for loop. */ | |
362646f5 | 797 | if (!target_can_async_p ()) |
c2d11a7d JM |
798 | { |
799 | for (; count > 0; count--) | |
800 | { | |
801 | clear_proceed_status (); | |
802 | ||
803 | frame = get_current_frame (); | |
804 | if (!frame) /* Avoid coredump here. Why tho? */ | |
8a3fe4f8 | 805 | error (_("No current frame")); |
aa0cd9c1 | 806 | step_frame_id = get_frame_id (frame); |
c2d11a7d JM |
807 | |
808 | if (!single_inst) | |
809 | { | |
810 | find_pc_line_pc_range (stop_pc, &step_range_start, &step_range_end); | |
811 | if (step_range_end == 0) | |
812 | { | |
813 | char *name; | |
814 | if (find_pc_partial_function (stop_pc, &name, &step_range_start, | |
815 | &step_range_end) == 0) | |
8a3fe4f8 | 816 | error (_("Cannot find bounds of current function")); |
c2d11a7d JM |
817 | |
818 | target_terminal_ours (); | |
a3f17187 | 819 | printf_filtered (_("\ |
c2d11a7d | 820 | Single stepping until exit from function %s, \n\ |
a3f17187 | 821 | which has no line number information.\n"), name); |
c2d11a7d JM |
822 | } |
823 | } | |
824 | else | |
825 | { | |
826 | /* Say we are stepping, but stop after one insn whatever it does. */ | |
827 | step_range_start = step_range_end = 1; | |
828 | if (!skip_subroutines) | |
829 | /* It is stepi. | |
830 | Don't step over function calls, not even to functions lacking | |
831 | line numbers. */ | |
5fbbeb29 | 832 | step_over_calls = STEP_OVER_NONE; |
c2d11a7d JM |
833 | } |
834 | ||
835 | if (skip_subroutines) | |
5fbbeb29 | 836 | step_over_calls = STEP_OVER_ALL; |
c2d11a7d JM |
837 | |
838 | step_multi = (count > 1); | |
839 | proceed ((CORE_ADDR) -1, TARGET_SIGNAL_DEFAULT, 1); | |
840 | ||
841 | if (!stop_step) | |
842 | break; | |
c2d11a7d JM |
843 | } |
844 | ||
f107f563 | 845 | do_cleanups (cleanups); |
c2d11a7d JM |
846 | return; |
847 | } | |
848 | /* In case of asynchronous target things get complicated, do only | |
849 | one step for now, before returning control to the event loop. Let | |
850 | the continuation figure out how many other steps we need to do, | |
851 | and handle them one at the time, through step_once(). */ | |
852 | else | |
853 | { | |
b3dc826b | 854 | step_once (skip_subroutines, single_inst, count, thread); |
611c83ae | 855 | /* We are running, and the continuation is installed. It will |
f107f563 VP |
856 | disable the longjmp breakpoint as appropriate. */ |
857 | discard_cleanups (cleanups); | |
c906108c | 858 | } |
c2d11a7d | 859 | } |
c906108c | 860 | |
c2d11a7d JM |
861 | /* Called after we are done with one step operation, to check whether |
862 | we need to step again, before we print the prompt and return control | |
863 | to the user. If count is > 1, we will need to do one more call to | |
864 | proceed(), via step_once(). Basically it is like step_once and | |
865 | step_1_continuation are co-recursive. */ | |
866 | static void | |
f107f563 | 867 | step_1_continuation (struct continuation_arg *arg, int error_p) |
c2d11a7d | 868 | { |
f13468d9 VP |
869 | int count; |
870 | int skip_subroutines; | |
871 | int single_inst; | |
611c83ae | 872 | int thread; |
f107f563 | 873 | |
f13468d9 VP |
874 | skip_subroutines = arg->data.integer; |
875 | single_inst = arg->next->data.integer; | |
876 | count = arg->next->next->data.integer; | |
611c83ae | 877 | thread = arg->next->next->next->data.integer; |
f13468d9 VP |
878 | |
879 | if (error_p || !step_multi || !stop_step) | |
880 | { | |
881 | /* We either hit an error, or stopped for some reason | |
882 | that is not stepping, or there are no further steps | |
883 | to make. Cleanup. */ | |
884 | if (!single_inst || skip_subroutines) | |
611c83ae | 885 | delete_longjmp_breakpoint (thread); |
f13468d9 | 886 | step_multi = 0; |
f107f563 | 887 | } |
f13468d9 | 888 | else |
611c83ae | 889 | step_once (skip_subroutines, single_inst, count - 1, thread); |
c2d11a7d JM |
890 | } |
891 | ||
892 | /* Do just one step operation. If count >1 we will have to set up a | |
893 | continuation to be done after the target stops (after this one | |
894 | step). This is useful to implement the 'step n' kind of commands, in | |
895 | case of asynchronous targets. We had to split step_1 into two parts, | |
896 | one to be done before proceed() and one afterwards. This function is | |
897 | called in case of step n with n>1, after the first step operation has | |
898 | been completed.*/ | |
899 | static void | |
611c83ae | 900 | step_once (int skip_subroutines, int single_inst, int count, int thread) |
c2d11a7d | 901 | { |
0d06e24b JM |
902 | struct continuation_arg *arg1; |
903 | struct continuation_arg *arg2; | |
904 | struct continuation_arg *arg3; | |
611c83ae | 905 | struct continuation_arg *arg4; |
0d06e24b | 906 | struct frame_info *frame; |
c2d11a7d JM |
907 | |
908 | if (count > 0) | |
c906108c SS |
909 | { |
910 | clear_proceed_status (); | |
911 | ||
912 | frame = get_current_frame (); | |
c5aa993b | 913 | if (!frame) /* Avoid coredump here. Why tho? */ |
8a3fe4f8 | 914 | error (_("No current frame")); |
aa0cd9c1 | 915 | step_frame_id = get_frame_id (frame); |
c906108c | 916 | |
c5aa993b | 917 | if (!single_inst) |
c906108c SS |
918 | { |
919 | find_pc_line_pc_range (stop_pc, &step_range_start, &step_range_end); | |
5fbbeb29 CF |
920 | |
921 | /* If we have no line info, switch to stepi mode. */ | |
922 | if (step_range_end == 0 && step_stop_if_no_debug) | |
923 | { | |
924 | step_range_start = step_range_end = 1; | |
925 | } | |
926 | else if (step_range_end == 0) | |
c906108c SS |
927 | { |
928 | char *name; | |
929 | if (find_pc_partial_function (stop_pc, &name, &step_range_start, | |
930 | &step_range_end) == 0) | |
8a3fe4f8 | 931 | error (_("Cannot find bounds of current function")); |
c906108c SS |
932 | |
933 | target_terminal_ours (); | |
a3f17187 | 934 | printf_filtered (_("\ |
c906108c | 935 | Single stepping until exit from function %s, \n\ |
a3f17187 | 936 | which has no line number information.\n"), name); |
c906108c SS |
937 | } |
938 | } | |
939 | else | |
940 | { | |
941 | /* Say we are stepping, but stop after one insn whatever it does. */ | |
942 | step_range_start = step_range_end = 1; | |
943 | if (!skip_subroutines) | |
944 | /* It is stepi. | |
945 | Don't step over function calls, not even to functions lacking | |
946 | line numbers. */ | |
5fbbeb29 | 947 | step_over_calls = STEP_OVER_NONE; |
c906108c SS |
948 | } |
949 | ||
950 | if (skip_subroutines) | |
5fbbeb29 | 951 | step_over_calls = STEP_OVER_ALL; |
c906108c SS |
952 | |
953 | step_multi = (count > 1); | |
f107f563 | 954 | proceed ((CORE_ADDR) -1, TARGET_SIGNAL_DEFAULT, 1); |
c2d11a7d JM |
955 | arg1 = |
956 | (struct continuation_arg *) xmalloc (sizeof (struct continuation_arg)); | |
957 | arg2 = | |
958 | (struct continuation_arg *) xmalloc (sizeof (struct continuation_arg)); | |
959 | arg3 = | |
960 | (struct continuation_arg *) xmalloc (sizeof (struct continuation_arg)); | |
611c83ae PA |
961 | arg4 = |
962 | (struct continuation_arg *) xmalloc (sizeof (struct continuation_arg)); | |
c2d11a7d | 963 | arg1->next = arg2; |
57e687d9 | 964 | arg1->data.integer = skip_subroutines; |
c2d11a7d | 965 | arg2->next = arg3; |
57e687d9 | 966 | arg2->data.integer = single_inst; |
611c83ae | 967 | arg3->next = arg4; |
57e687d9 | 968 | arg3->data.integer = count; |
611c83ae PA |
969 | arg4->next = NULL; |
970 | arg4->data.integer = thread; | |
c2d11a7d | 971 | add_intermediate_continuation (step_1_continuation, arg1); |
c906108c | 972 | } |
c906108c | 973 | } |
c2d11a7d | 974 | |
c906108c SS |
975 | \f |
976 | /* Continue program at specified address. */ | |
977 | ||
978 | static void | |
fba45db2 | 979 | jump_command (char *arg, int from_tty) |
c906108c | 980 | { |
52f0bd74 | 981 | CORE_ADDR addr; |
c906108c SS |
982 | struct symtabs_and_lines sals; |
983 | struct symtab_and_line sal; | |
984 | struct symbol *fn; | |
985 | struct symbol *sfn; | |
43ff13b4 | 986 | int async_exec = 0; |
c5aa993b | 987 | |
c906108c | 988 | ERROR_NO_INFERIOR; |
94cc34af | 989 | ensure_not_running (); |
c906108c | 990 | |
43ff13b4 JM |
991 | /* Find out whether we must run in the background. */ |
992 | if (arg != NULL) | |
993 | async_exec = strip_bg_char (&arg); | |
994 | ||
995 | /* If we must run in the background, but the target can't do it, | |
996 | error out. */ | |
362646f5 | 997 | if (async_exec && !target_can_async_p ()) |
8a3fe4f8 | 998 | error (_("Asynchronous execution not supported on this target.")); |
43ff13b4 | 999 | |
c906108c | 1000 | if (!arg) |
e2e0b3e5 | 1001 | error_no_arg (_("starting address")); |
c906108c SS |
1002 | |
1003 | sals = decode_line_spec_1 (arg, 1); | |
1004 | if (sals.nelts != 1) | |
1005 | { | |
8a3fe4f8 | 1006 | error (_("Unreasonable jump request")); |
c906108c SS |
1007 | } |
1008 | ||
1009 | sal = sals.sals[0]; | |
b8c9b27d | 1010 | xfree (sals.sals); |
c906108c SS |
1011 | |
1012 | if (sal.symtab == 0 && sal.pc == 0) | |
8a3fe4f8 | 1013 | error (_("No source file has been specified.")); |
c906108c | 1014 | |
c5aa993b | 1015 | resolve_sal_pc (&sal); /* May error out */ |
c906108c SS |
1016 | |
1017 | /* See if we are trying to jump to another function. */ | |
1018 | fn = get_frame_function (get_current_frame ()); | |
1019 | sfn = find_pc_function (sal.pc); | |
1020 | if (fn != NULL && sfn != fn) | |
1021 | { | |
1022 | if (!query ("Line %d is not in `%s'. Jump anyway? ", sal.line, | |
de5ad195 | 1023 | SYMBOL_PRINT_NAME (fn))) |
c906108c | 1024 | { |
8a3fe4f8 | 1025 | error (_("Not confirmed.")); |
c906108c SS |
1026 | /* NOTREACHED */ |
1027 | } | |
1028 | } | |
1029 | ||
c5aa993b | 1030 | if (sfn != NULL) |
c906108c SS |
1031 | { |
1032 | fixup_symbol_section (sfn, 0); | |
c5aa993b | 1033 | if (section_is_overlay (SYMBOL_BFD_SECTION (sfn)) && |
c906108c SS |
1034 | !section_is_mapped (SYMBOL_BFD_SECTION (sfn))) |
1035 | { | |
1036 | if (!query ("WARNING!!! Destination is in unmapped overlay! Jump anyway? ")) | |
1037 | { | |
8a3fe4f8 | 1038 | error (_("Not confirmed.")); |
c906108c SS |
1039 | /* NOTREACHED */ |
1040 | } | |
1041 | } | |
1042 | } | |
1043 | ||
c906108c SS |
1044 | addr = sal.pc; |
1045 | ||
1046 | if (from_tty) | |
1047 | { | |
a3f17187 | 1048 | printf_filtered (_("Continuing at ")); |
ed49a04f | 1049 | fputs_filtered (paddress (addr), gdb_stdout); |
c906108c SS |
1050 | printf_filtered (".\n"); |
1051 | } | |
1052 | ||
89113898 PA |
1053 | /* If we are not asked to run in the bg, then prepare to run in the |
1054 | foreground, synchronously. */ | |
1055 | if (!async_exec && target_can_async_p ()) | |
1056 | { | |
1057 | /* Simulate synchronous execution */ | |
1058 | async_disable_stdin (); | |
1059 | } | |
1060 | ||
c906108c SS |
1061 | clear_proceed_status (); |
1062 | proceed (addr, TARGET_SIGNAL_0, 0); | |
1063 | } | |
c906108c | 1064 | \f |
c5aa993b | 1065 | |
c906108c SS |
1066 | /* Go to line or address in current procedure */ |
1067 | static void | |
fba45db2 | 1068 | go_command (char *line_no, int from_tty) |
c906108c | 1069 | { |
c5aa993b | 1070 | if (line_no == (char *) NULL || !*line_no) |
b83266a0 | 1071 | printf_filtered (GO_USAGE); |
c906108c SS |
1072 | else |
1073 | { | |
b83266a0 SS |
1074 | tbreak_command (line_no, from_tty); |
1075 | jump_command (line_no, from_tty); | |
c906108c SS |
1076 | } |
1077 | } | |
c906108c | 1078 | \f |
c5aa993b | 1079 | |
c906108c SS |
1080 | /* Continue program giving it specified signal. */ |
1081 | ||
1082 | static void | |
fba45db2 | 1083 | signal_command (char *signum_exp, int from_tty) |
c906108c SS |
1084 | { |
1085 | enum target_signal oursig; | |
32c1e744 | 1086 | int async_exec = 0; |
c906108c SS |
1087 | |
1088 | dont_repeat (); /* Too dangerous. */ | |
1089 | ERROR_NO_INFERIOR; | |
94cc34af | 1090 | ensure_not_running (); |
c906108c | 1091 | |
32c1e744 VP |
1092 | /* Find out whether we must run in the background. */ |
1093 | if (signum_exp != NULL) | |
1094 | async_exec = strip_bg_char (&signum_exp); | |
1095 | ||
1096 | /* If we must run in the background, but the target can't do it, | |
1097 | error out. */ | |
1098 | if (async_exec && !target_can_async_p ()) | |
1099 | error (_("Asynchronous execution not supported on this target.")); | |
1100 | ||
1101 | /* If we are not asked to run in the bg, then prepare to run in the | |
1102 | foreground, synchronously. */ | |
1103 | if (!async_exec && target_can_async_p ()) | |
1104 | { | |
1105 | /* Simulate synchronous execution. */ | |
1106 | async_disable_stdin (); | |
1107 | } | |
1108 | ||
c906108c | 1109 | if (!signum_exp) |
e2e0b3e5 | 1110 | error_no_arg (_("signal number")); |
c906108c SS |
1111 | |
1112 | /* It would be even slicker to make signal names be valid expressions, | |
1113 | (the type could be "enum $signal" or some such), then the user could | |
1114 | assign them to convenience variables. */ | |
1115 | oursig = target_signal_from_name (signum_exp); | |
1116 | ||
1117 | if (oursig == TARGET_SIGNAL_UNKNOWN) | |
1118 | { | |
1119 | /* No, try numeric. */ | |
bb518678 | 1120 | int num = parse_and_eval_long (signum_exp); |
c906108c SS |
1121 | |
1122 | if (num == 0) | |
1123 | oursig = TARGET_SIGNAL_0; | |
1124 | else | |
1125 | oursig = target_signal_from_command (num); | |
1126 | } | |
1127 | ||
1128 | if (from_tty) | |
1129 | { | |
1130 | if (oursig == TARGET_SIGNAL_0) | |
a3f17187 | 1131 | printf_filtered (_("Continuing with no signal.\n")); |
c906108c | 1132 | else |
a3f17187 | 1133 | printf_filtered (_("Continuing with signal %s.\n"), |
c906108c SS |
1134 | target_signal_to_name (oursig)); |
1135 | } | |
1136 | ||
1137 | clear_proceed_status (); | |
1138 | /* "signal 0" should not get stuck if we are stopped at a breakpoint. | |
1139 | FIXME: Neither should "signal foo" but when I tried passing | |
1140 | (CORE_ADDR)-1 unconditionally I got a testsuite failure which I haven't | |
1141 | tried to track down yet. */ | |
2acceee2 | 1142 | proceed (oursig == TARGET_SIGNAL_0 ? (CORE_ADDR) -1 : stop_pc, oursig, 0); |
c906108c SS |
1143 | } |
1144 | ||
c906108c SS |
1145 | /* Proceed until we reach a different source line with pc greater than |
1146 | our current one or exit the function. We skip calls in both cases. | |
1147 | ||
1148 | Note that eventually this command should probably be changed so | |
1149 | that only source lines are printed out when we hit the breakpoint | |
1150 | we set. This may involve changes to wait_for_inferior and the | |
1151 | proceed status code. */ | |
1152 | ||
c906108c | 1153 | static void |
fba45db2 | 1154 | until_next_command (int from_tty) |
c906108c SS |
1155 | { |
1156 | struct frame_info *frame; | |
1157 | CORE_ADDR pc; | |
1158 | struct symbol *func; | |
1159 | struct symtab_and_line sal; | |
c5aa993b | 1160 | |
c906108c SS |
1161 | clear_proceed_status (); |
1162 | ||
1163 | frame = get_current_frame (); | |
1164 | ||
1165 | /* Step until either exited from this function or greater | |
1166 | than the current line (if in symbolic section) or pc (if | |
1167 | not). */ | |
1168 | ||
1169 | pc = read_pc (); | |
1170 | func = find_pc_function (pc); | |
c5aa993b | 1171 | |
c906108c SS |
1172 | if (!func) |
1173 | { | |
1174 | struct minimal_symbol *msymbol = lookup_minimal_symbol_by_pc (pc); | |
c5aa993b | 1175 | |
c906108c | 1176 | if (msymbol == NULL) |
8a3fe4f8 | 1177 | error (_("Execution is not within a known function.")); |
c5aa993b | 1178 | |
c906108c SS |
1179 | step_range_start = SYMBOL_VALUE_ADDRESS (msymbol); |
1180 | step_range_end = pc; | |
1181 | } | |
1182 | else | |
1183 | { | |
1184 | sal = find_pc_line (pc, 0); | |
c5aa993b | 1185 | |
c906108c SS |
1186 | step_range_start = BLOCK_START (SYMBOL_BLOCK_VALUE (func)); |
1187 | step_range_end = sal.end; | |
1188 | } | |
c5aa993b | 1189 | |
5fbbeb29 | 1190 | step_over_calls = STEP_OVER_ALL; |
aa0cd9c1 | 1191 | step_frame_id = get_frame_id (frame); |
c906108c SS |
1192 | |
1193 | step_multi = 0; /* Only one call to proceed */ | |
c5aa993b | 1194 | |
2acceee2 | 1195 | proceed ((CORE_ADDR) -1, TARGET_SIGNAL_DEFAULT, 1); |
c906108c SS |
1196 | } |
1197 | ||
c5aa993b | 1198 | static void |
fba45db2 | 1199 | until_command (char *arg, int from_tty) |
c906108c | 1200 | { |
43ff13b4 JM |
1201 | int async_exec = 0; |
1202 | ||
c906108c | 1203 | if (!target_has_execution) |
8a3fe4f8 | 1204 | error (_("The program is not running.")); |
43ff13b4 JM |
1205 | |
1206 | /* Find out whether we must run in the background. */ | |
1207 | if (arg != NULL) | |
1208 | async_exec = strip_bg_char (&arg); | |
1209 | ||
1210 | /* If we must run in the background, but the target can't do it, | |
1211 | error out. */ | |
362646f5 | 1212 | if (async_exec && !target_can_async_p ()) |
8a3fe4f8 | 1213 | error (_("Asynchronous execution not supported on this target.")); |
43ff13b4 JM |
1214 | |
1215 | /* If we are not asked to run in the bg, then prepare to run in the | |
1216 | foreground, synchronously. */ | |
362646f5 | 1217 | if (!async_exec && target_can_async_p ()) |
c5aa993b | 1218 | { |
43ff13b4 | 1219 | /* Simulate synchronous execution */ |
6426a772 | 1220 | async_disable_stdin (); |
43ff13b4 JM |
1221 | } |
1222 | ||
c906108c | 1223 | if (arg) |
ae66c1fc | 1224 | until_break_command (arg, from_tty, 0); |
c906108c SS |
1225 | else |
1226 | until_next_command (from_tty); | |
1227 | } | |
ae66c1fc EZ |
1228 | |
1229 | static void | |
1230 | advance_command (char *arg, int from_tty) | |
1231 | { | |
1232 | int async_exec = 0; | |
1233 | ||
1234 | if (!target_has_execution) | |
8a3fe4f8 | 1235 | error (_("The program is not running.")); |
ae66c1fc EZ |
1236 | |
1237 | if (arg == NULL) | |
e2e0b3e5 | 1238 | error_no_arg (_("a location")); |
ae66c1fc EZ |
1239 | |
1240 | /* Find out whether we must run in the background. */ | |
1241 | if (arg != NULL) | |
1242 | async_exec = strip_bg_char (&arg); | |
1243 | ||
1244 | /* If we must run in the background, but the target can't do it, | |
1245 | error out. */ | |
362646f5 | 1246 | if (async_exec && !target_can_async_p ()) |
8a3fe4f8 | 1247 | error (_("Asynchronous execution not supported on this target.")); |
ae66c1fc EZ |
1248 | |
1249 | /* If we are not asked to run in the bg, then prepare to run in the | |
1250 | foreground, synchronously. */ | |
362646f5 | 1251 | if (!async_exec && target_can_async_p ()) |
ae66c1fc EZ |
1252 | { |
1253 | /* Simulate synchronous execution. */ | |
1254 | async_disable_stdin (); | |
1255 | } | |
1256 | ||
1257 | until_break_command (arg, from_tty, 1); | |
1258 | } | |
c906108c | 1259 | \f |
f941662f MK |
1260 | /* Print the result of a function at the end of a 'finish' command. */ |
1261 | ||
11cf8741 | 1262 | static void |
c055b101 | 1263 | print_return_value (struct type *func_type, struct type *value_type) |
11cf8741 | 1264 | { |
31db7b6c | 1265 | struct gdbarch *gdbarch = current_gdbarch; |
bb472c1e MK |
1266 | struct cleanup *old_chain; |
1267 | struct ui_stream *stb; | |
44e5158b AC |
1268 | struct value *value; |
1269 | ||
181fc57c | 1270 | CHECK_TYPEDEF (value_type); |
44e5158b | 1271 | gdb_assert (TYPE_CODE (value_type) != TYPE_CODE_VOID); |
11cf8741 | 1272 | |
92ad9cd9 AC |
1273 | /* FIXME: 2003-09-27: When returning from a nested inferior function |
1274 | call, it's possible (with no help from the architecture vector) | |
1275 | to locate and return/print a "struct return" value. This is just | |
1276 | a more complicated case of what is already being done in in the | |
1277 | inferior function call code. In fact, when inferior function | |
1278 | calls are made async, this will likely be made the norm. */ | |
31db7b6c | 1279 | |
c055b101 CV |
1280 | switch (gdbarch_return_value (gdbarch, func_type, value_type, |
1281 | NULL, NULL, NULL)) | |
44e5158b | 1282 | { |
750eb019 AC |
1283 | case RETURN_VALUE_REGISTER_CONVENTION: |
1284 | case RETURN_VALUE_ABI_RETURNS_ADDRESS: | |
181fc57c | 1285 | case RETURN_VALUE_ABI_PRESERVES_ADDRESS: |
44e5158b | 1286 | value = allocate_value (value_type); |
c055b101 | 1287 | gdbarch_return_value (gdbarch, func_type, value_type, stop_registers, |
990a07ab | 1288 | value_contents_raw (value), NULL); |
750eb019 AC |
1289 | break; |
1290 | case RETURN_VALUE_STRUCT_CONVENTION: | |
1291 | value = NULL; | |
1292 | break; | |
1293 | default: | |
e2e0b3e5 | 1294 | internal_error (__FILE__, __LINE__, _("bad switch")); |
44e5158b | 1295 | } |
bb472c1e | 1296 | |
31db7b6c MK |
1297 | if (value) |
1298 | { | |
1299 | /* Print it. */ | |
1d751abe PA |
1300 | stb = ui_out_stream_new (uiout); |
1301 | old_chain = make_cleanup_ui_out_stream_delete (stb); | |
31db7b6c MK |
1302 | ui_out_text (uiout, "Value returned is "); |
1303 | ui_out_field_fmt (uiout, "gdb-result-var", "$%d", | |
1304 | record_latest_value (value)); | |
1305 | ui_out_text (uiout, " = "); | |
1306 | value_print (value, stb->stream, 0, Val_no_prettyprint); | |
1307 | ui_out_field_stream (uiout, "return-value", stb); | |
1308 | ui_out_text (uiout, "\n"); | |
1d751abe | 1309 | do_cleanups (old_chain); |
31db7b6c MK |
1310 | } |
1311 | else | |
1312 | { | |
1313 | ui_out_text (uiout, "Value returned has type: "); | |
1d751abe PA |
1314 | ui_out_field_string (uiout, "return-type", TYPE_NAME (value_type)); |
1315 | ui_out_text (uiout, "."); | |
1316 | ui_out_text (uiout, " Cannot determine contents\n"); | |
31db7b6c | 1317 | } |
11cf8741 JM |
1318 | } |
1319 | ||
43ff13b4 | 1320 | /* Stuff that needs to be done by the finish command after the target |
f941662f MK |
1321 | has stopped. In asynchronous mode, we wait for the target to stop |
1322 | in the call to poll or select in the event loop, so it is | |
1323 | impossible to do all the stuff as part of the finish_command | |
1324 | function itself. The only chance we have to complete this command | |
1325 | is in fetch_inferior_event, which is called by the event loop as | |
1326 | soon as it detects that the target has stopped. This function is | |
1327 | called via the cmd_continuation pointer. */ | |
1328 | ||
1329 | static void | |
f107f563 | 1330 | finish_command_continuation (struct continuation_arg *arg, int error_p) |
43ff13b4 | 1331 | { |
52f0bd74 | 1332 | struct symbol *function; |
43ff13b4 | 1333 | struct breakpoint *breakpoint; |
0d06e24b | 1334 | struct cleanup *cleanups; |
c5aa993b | 1335 | |
57e687d9 | 1336 | breakpoint = (struct breakpoint *) arg->data.pointer; |
f941662f | 1337 | function = (struct symbol *) arg->next->data.pointer; |
43ff13b4 | 1338 | |
f107f563 | 1339 | if (!error_p) |
43ff13b4 | 1340 | { |
f107f563 VP |
1341 | if (bpstat_find_breakpoint (stop_bpstat, breakpoint) != NULL |
1342 | && function != NULL) | |
1343 | { | |
1344 | struct type *value_type; | |
1345 | ||
1346 | value_type = TYPE_TARGET_TYPE (SYMBOL_TYPE (function)); | |
1347 | if (!value_type) | |
1348 | internal_error (__FILE__, __LINE__, | |
1349 | _("finish_command: function has no target type")); | |
1350 | ||
1351 | if (TYPE_CODE (value_type) != TYPE_CODE_VOID) | |
1352 | print_return_value (SYMBOL_TYPE (function), value_type); | |
1353 | } | |
f5871ec0 VP |
1354 | |
1355 | /* We suppress normal call of normal_stop observer and do it here so that | |
1356 | that *stopped notification includes the return value. */ | |
1357 | observer_notify_normal_stop (stop_bpstat); | |
43ff13b4 | 1358 | } |
f941662f | 1359 | |
8f6a8e84 | 1360 | suppress_stop_observer = 0; |
f107f563 | 1361 | delete_breakpoint (breakpoint); |
43ff13b4 JM |
1362 | } |
1363 | ||
f941662f MK |
1364 | /* "finish": Set a temporary breakpoint at the place the selected |
1365 | frame will return to, then continue. */ | |
c906108c SS |
1366 | |
1367 | static void | |
fba45db2 | 1368 | finish_command (char *arg, int from_tty) |
c906108c SS |
1369 | { |
1370 | struct symtab_and_line sal; | |
52f0bd74 AC |
1371 | struct frame_info *frame; |
1372 | struct symbol *function; | |
c906108c SS |
1373 | struct breakpoint *breakpoint; |
1374 | struct cleanup *old_chain; | |
0d06e24b | 1375 | struct continuation_arg *arg1, *arg2, *arg3; |
43ff13b4 JM |
1376 | |
1377 | int async_exec = 0; | |
1378 | ||
f941662f | 1379 | /* Find out whether we must run in the background. */ |
43ff13b4 JM |
1380 | if (arg != NULL) |
1381 | async_exec = strip_bg_char (&arg); | |
1382 | ||
1383 | /* If we must run in the background, but the target can't do it, | |
f941662f | 1384 | error out. */ |
362646f5 | 1385 | if (async_exec && !target_can_async_p ()) |
8a3fe4f8 | 1386 | error (_("Asynchronous execution not supported on this target.")); |
43ff13b4 JM |
1387 | |
1388 | /* If we are not asked to run in the bg, then prepare to run in the | |
f941662f | 1389 | foreground, synchronously. */ |
362646f5 | 1390 | if (!async_exec && target_can_async_p ()) |
c5aa993b | 1391 | { |
f941662f | 1392 | /* Simulate synchronous execution. */ |
6426a772 | 1393 | async_disable_stdin (); |
43ff13b4 | 1394 | } |
c906108c SS |
1395 | |
1396 | if (arg) | |
8a3fe4f8 | 1397 | error (_("The \"finish\" command does not take any arguments.")); |
c906108c | 1398 | if (!target_has_execution) |
8a3fe4f8 | 1399 | error (_("The program is not running.")); |
c906108c | 1400 | |
206415a3 | 1401 | frame = get_prev_frame (get_selected_frame (_("No selected frame."))); |
c906108c | 1402 | if (frame == 0) |
8a3fe4f8 | 1403 | error (_("\"finish\" not meaningful in the outermost frame.")); |
c906108c SS |
1404 | |
1405 | clear_proceed_status (); | |
1406 | ||
bdd78e62 AC |
1407 | sal = find_pc_line (get_frame_pc (frame), 0); |
1408 | sal.pc = get_frame_pc (frame); | |
c906108c | 1409 | |
818dd999 | 1410 | breakpoint = set_momentary_breakpoint (sal, get_frame_id (frame), bp_finish); |
c906108c | 1411 | |
f107f563 | 1412 | old_chain = make_cleanup_delete_breakpoint (breakpoint); |
c906108c SS |
1413 | |
1414 | /* Find the function we will return from. */ | |
1415 | ||
206415a3 | 1416 | function = find_pc_function (get_frame_pc (get_selected_frame (NULL))); |
c906108c | 1417 | |
f941662f MK |
1418 | /* Print info on the selected frame, including level number but not |
1419 | source. */ | |
c906108c SS |
1420 | if (from_tty) |
1421 | { | |
a3f17187 | 1422 | printf_filtered (_("Run till exit from ")); |
b04f3ab4 | 1423 | print_stack_frame (get_selected_frame (NULL), 1, LOCATION); |
c906108c SS |
1424 | } |
1425 | ||
32c1e744 | 1426 | proceed_to_finish = 1; /* We want stop_registers, please... */ |
8f6a8e84 VP |
1427 | make_cleanup_restore_integer (&suppress_stop_observer); |
1428 | suppress_stop_observer = 1; | |
32c1e744 VP |
1429 | proceed ((CORE_ADDR) -1, TARGET_SIGNAL_DEFAULT, 0); |
1430 | ||
f107f563 VP |
1431 | arg1 = |
1432 | (struct continuation_arg *) xmalloc (sizeof (struct continuation_arg)); | |
1433 | arg2 = | |
1434 | (struct continuation_arg *) xmalloc (sizeof (struct continuation_arg)); | |
f107f563 | 1435 | arg1->next = arg2; |
3d3191a6 | 1436 | arg2->next = NULL; |
f107f563 VP |
1437 | arg1->data.pointer = breakpoint; |
1438 | arg2->data.pointer = function; | |
f107f563 | 1439 | add_continuation (finish_command_continuation, arg1); |
f7f9a841 | 1440 | |
f107f563 | 1441 | discard_cleanups (old_chain); |
362646f5 | 1442 | if (!target_can_async_p ()) |
f107f563 | 1443 | do_all_continuations (0); |
c906108c SS |
1444 | } |
1445 | \f | |
f941662f | 1446 | |
c906108c | 1447 | static void |
fba45db2 | 1448 | program_info (char *args, int from_tty) |
c906108c SS |
1449 | { |
1450 | bpstat bs = stop_bpstat; | |
8671a17b PA |
1451 | int num; |
1452 | int stat = bpstat_num (&bs, &num); | |
c5aa993b | 1453 | |
c906108c SS |
1454 | if (!target_has_execution) |
1455 | { | |
a3f17187 | 1456 | printf_filtered (_("The program being debugged is not being run.\n")); |
c906108c SS |
1457 | return; |
1458 | } | |
1459 | ||
1460 | target_files_info (); | |
a3f17187 | 1461 | printf_filtered (_("Program stopped at %s.\n"), |
bb599908 | 1462 | hex_string ((unsigned long) stop_pc)); |
c906108c | 1463 | if (stop_step) |
a3f17187 | 1464 | printf_filtered (_("It stopped after being stepped.\n")); |
8671a17b | 1465 | else if (stat != 0) |
c906108c SS |
1466 | { |
1467 | /* There may be several breakpoints in the same place, so this | |
c5aa993b | 1468 | isn't as strange as it seems. */ |
8671a17b | 1469 | while (stat != 0) |
c906108c | 1470 | { |
8671a17b | 1471 | if (stat < 0) |
c906108c | 1472 | { |
a3f17187 AC |
1473 | printf_filtered (_("\ |
1474 | It stopped at a breakpoint that has since been deleted.\n")); | |
c906108c SS |
1475 | } |
1476 | else | |
a3f17187 | 1477 | printf_filtered (_("It stopped at breakpoint %d.\n"), num); |
8671a17b | 1478 | stat = bpstat_num (&bs, &num); |
c906108c SS |
1479 | } |
1480 | } | |
1481 | else if (stop_signal != TARGET_SIGNAL_0) | |
1482 | { | |
a3f17187 | 1483 | printf_filtered (_("It stopped with signal %s, %s.\n"), |
c906108c SS |
1484 | target_signal_to_name (stop_signal), |
1485 | target_signal_to_string (stop_signal)); | |
1486 | } | |
1487 | ||
1488 | if (!from_tty) | |
1489 | { | |
a3f17187 AC |
1490 | printf_filtered (_("\ |
1491 | Type \"info stack\" or \"info registers\" for more information.\n")); | |
c906108c SS |
1492 | } |
1493 | } | |
1494 | \f | |
1495 | static void | |
fba45db2 | 1496 | environment_info (char *var, int from_tty) |
c906108c SS |
1497 | { |
1498 | if (var) | |
1499 | { | |
aa1ee363 | 1500 | char *val = get_in_environ (inferior_environ, var); |
c906108c SS |
1501 | if (val) |
1502 | { | |
1503 | puts_filtered (var); | |
1504 | puts_filtered (" = "); | |
1505 | puts_filtered (val); | |
1506 | puts_filtered ("\n"); | |
1507 | } | |
1508 | else | |
1509 | { | |
1510 | puts_filtered ("Environment variable \""); | |
1511 | puts_filtered (var); | |
1512 | puts_filtered ("\" not defined.\n"); | |
1513 | } | |
1514 | } | |
1515 | else | |
1516 | { | |
aa1ee363 | 1517 | char **vector = environ_vector (inferior_environ); |
c906108c SS |
1518 | while (*vector) |
1519 | { | |
1520 | puts_filtered (*vector++); | |
1521 | puts_filtered ("\n"); | |
1522 | } | |
1523 | } | |
1524 | } | |
1525 | ||
1526 | static void | |
fba45db2 | 1527 | set_environment_command (char *arg, int from_tty) |
c906108c | 1528 | { |
52f0bd74 | 1529 | char *p, *val, *var; |
c906108c SS |
1530 | int nullset = 0; |
1531 | ||
1532 | if (arg == 0) | |
e2e0b3e5 | 1533 | error_no_arg (_("environment variable and value")); |
c906108c SS |
1534 | |
1535 | /* Find seperation between variable name and value */ | |
1536 | p = (char *) strchr (arg, '='); | |
1537 | val = (char *) strchr (arg, ' '); | |
1538 | ||
1539 | if (p != 0 && val != 0) | |
1540 | { | |
1541 | /* We have both a space and an equals. If the space is before the | |
c5aa993b JM |
1542 | equals, walk forward over the spaces til we see a nonspace |
1543 | (possibly the equals). */ | |
c906108c SS |
1544 | if (p > val) |
1545 | while (*val == ' ') | |
1546 | val++; | |
1547 | ||
1548 | /* Now if the = is after the char following the spaces, | |
c5aa993b | 1549 | take the char following the spaces. */ |
c906108c SS |
1550 | if (p > val) |
1551 | p = val - 1; | |
1552 | } | |
1553 | else if (val != 0 && p == 0) | |
1554 | p = val; | |
1555 | ||
1556 | if (p == arg) | |
e2e0b3e5 | 1557 | error_no_arg (_("environment variable to set")); |
c906108c SS |
1558 | |
1559 | if (p == 0 || p[1] == 0) | |
1560 | { | |
1561 | nullset = 1; | |
1562 | if (p == 0) | |
1563 | p = arg + strlen (arg); /* So that savestring below will work */ | |
1564 | } | |
1565 | else | |
1566 | { | |
1567 | /* Not setting variable value to null */ | |
1568 | val = p + 1; | |
1569 | while (*val == ' ' || *val == '\t') | |
1570 | val++; | |
1571 | } | |
1572 | ||
c5aa993b JM |
1573 | while (p != arg && (p[-1] == ' ' || p[-1] == '\t')) |
1574 | p--; | |
c906108c SS |
1575 | |
1576 | var = savestring (arg, p - arg); | |
1577 | if (nullset) | |
1578 | { | |
a3f17187 AC |
1579 | printf_filtered (_("\ |
1580 | Setting environment variable \"%s\" to null value.\n"), | |
1581 | var); | |
c906108c SS |
1582 | set_in_environ (inferior_environ, var, ""); |
1583 | } | |
1584 | else | |
1585 | set_in_environ (inferior_environ, var, val); | |
b8c9b27d | 1586 | xfree (var); |
c906108c SS |
1587 | } |
1588 | ||
1589 | static void | |
fba45db2 | 1590 | unset_environment_command (char *var, int from_tty) |
c906108c SS |
1591 | { |
1592 | if (var == 0) | |
1593 | { | |
1594 | /* If there is no argument, delete all environment variables. | |
c5aa993b | 1595 | Ask for confirmation if reading from the terminal. */ |
e2e0b3e5 | 1596 | if (!from_tty || query (_("Delete all environment variables? "))) |
c906108c SS |
1597 | { |
1598 | free_environ (inferior_environ); | |
1599 | inferior_environ = make_environ (); | |
1600 | } | |
1601 | } | |
1602 | else | |
1603 | unset_in_environ (inferior_environ, var); | |
1604 | } | |
1605 | ||
1606 | /* Handle the execution path (PATH variable) */ | |
1607 | ||
1608 | static const char path_var_name[] = "PATH"; | |
1609 | ||
c906108c | 1610 | static void |
fba45db2 | 1611 | path_info (char *args, int from_tty) |
c906108c SS |
1612 | { |
1613 | puts_filtered ("Executable and object file path: "); | |
1614 | puts_filtered (get_in_environ (inferior_environ, path_var_name)); | |
1615 | puts_filtered ("\n"); | |
1616 | } | |
1617 | ||
1618 | /* Add zero or more directories to the front of the execution path. */ | |
1619 | ||
1620 | static void | |
fba45db2 | 1621 | path_command (char *dirname, int from_tty) |
c906108c SS |
1622 | { |
1623 | char *exec_path; | |
1624 | char *env; | |
1625 | dont_repeat (); | |
1626 | env = get_in_environ (inferior_environ, path_var_name); | |
1627 | /* Can be null if path is not set */ | |
1628 | if (!env) | |
1629 | env = ""; | |
4fcf66da | 1630 | exec_path = xstrdup (env); |
c906108c SS |
1631 | mod_path (dirname, &exec_path); |
1632 | set_in_environ (inferior_environ, path_var_name, exec_path); | |
b8c9b27d | 1633 | xfree (exec_path); |
c906108c | 1634 | if (from_tty) |
c5aa993b | 1635 | path_info ((char *) NULL, from_tty); |
c906108c | 1636 | } |
c906108c | 1637 | \f |
c5aa993b | 1638 | |
4782dc19 | 1639 | /* Print out the machine register regnum. If regnum is -1, print all |
0ab7a791 AC |
1640 | registers (print_all == 1) or all non-float and non-vector |
1641 | registers (print_all == 0). | |
c906108c SS |
1642 | |
1643 | For most machines, having all_registers_info() print the | |
0ab7a791 AC |
1644 | register(s) one per line is good enough. If a different format is |
1645 | required, (eg, for MIPS or Pyramid 90x, which both have lots of | |
1646 | regs), or there is an existing convention for showing all the | |
1647 | registers, define the architecture method PRINT_REGISTERS_INFO to | |
1648 | provide that format. */ | |
c906108c | 1649 | |
666e11c5 | 1650 | void |
0ab7a791 AC |
1651 | default_print_registers_info (struct gdbarch *gdbarch, |
1652 | struct ui_file *file, | |
1653 | struct frame_info *frame, | |
1654 | int regnum, int print_all) | |
c906108c | 1655 | { |
0ab7a791 | 1656 | int i; |
a4bd449d UW |
1657 | const int numregs = gdbarch_num_regs (gdbarch) |
1658 | + gdbarch_num_pseudo_regs (gdbarch); | |
10c42a71 | 1659 | gdb_byte buffer[MAX_REGISTER_SIZE]; |
0ab7a791 | 1660 | |
c906108c SS |
1661 | for (i = 0; i < numregs; i++) |
1662 | { | |
4782dc19 AC |
1663 | /* Decide between printing all regs, non-float / vector regs, or |
1664 | specific reg. */ | |
c5aa993b JM |
1665 | if (regnum == -1) |
1666 | { | |
f9418c0f | 1667 | if (print_all) |
4782dc19 | 1668 | { |
f9418c0f | 1669 | if (!gdbarch_register_reggroup_p (gdbarch, i, all_reggroup)) |
4782dc19 | 1670 | continue; |
f9418c0f AC |
1671 | } |
1672 | else | |
1673 | { | |
1674 | if (!gdbarch_register_reggroup_p (gdbarch, i, general_reggroup)) | |
4782dc19 AC |
1675 | continue; |
1676 | } | |
c5aa993b JM |
1677 | } |
1678 | else | |
1679 | { | |
1680 | if (i != regnum) | |
1681 | continue; | |
1682 | } | |
c906108c SS |
1683 | |
1684 | /* If the register name is empty, it is undefined for this | |
c5aa993b | 1685 | processor, so don't display anything. */ |
a4bd449d UW |
1686 | if (gdbarch_register_name (gdbarch, i) == NULL |
1687 | || *(gdbarch_register_name (gdbarch, i)) == '\0') | |
c906108c SS |
1688 | continue; |
1689 | ||
a4bd449d | 1690 | fputs_filtered (gdbarch_register_name (gdbarch, i), file); |
c9f4d572 | 1691 | print_spaces_filtered (15 - strlen (gdbarch_register_name |
a4bd449d | 1692 | (gdbarch, i)), file); |
c906108c SS |
1693 | |
1694 | /* Get the data in raw format. */ | |
9730f241 | 1695 | if (! frame_register_read (frame, i, buffer)) |
c906108c | 1696 | { |
0ab7a791 | 1697 | fprintf_filtered (file, "*value not available*\n"); |
c906108c SS |
1698 | continue; |
1699 | } | |
1700 | ||
0ab7a791 AC |
1701 | /* If virtual format is floating, print it that way, and in raw |
1702 | hex. */ | |
f949c649 TJB |
1703 | if (TYPE_CODE (register_type (gdbarch, i)) == TYPE_CODE_FLT |
1704 | || TYPE_CODE (register_type (gdbarch, i)) == TYPE_CODE_DECFLOAT) | |
c906108c | 1705 | { |
0ab7a791 | 1706 | int j; |
c906108c | 1707 | |
a4bd449d | 1708 | val_print (register_type (gdbarch, i), buffer, 0, 0, |
d8ca156b | 1709 | file, 0, 1, 0, Val_pretty_default, current_language); |
c906108c | 1710 | |
0ab7a791 | 1711 | fprintf_filtered (file, "\t(raw 0x"); |
a4bd449d | 1712 | for (j = 0; j < register_size (gdbarch, i); j++) |
c906108c | 1713 | { |
0ab7a791 | 1714 | int idx; |
a4bd449d | 1715 | if (gdbarch_byte_order (gdbarch) == BFD_ENDIAN_BIG) |
0ab7a791 AC |
1716 | idx = j; |
1717 | else | |
a4bd449d | 1718 | idx = register_size (gdbarch, i) - 1 - j; |
9730f241 | 1719 | fprintf_filtered (file, "%02x", (unsigned char) buffer[idx]); |
c906108c | 1720 | } |
0ab7a791 | 1721 | fprintf_filtered (file, ")"); |
c906108c | 1722 | } |
c906108c SS |
1723 | else |
1724 | { | |
ab4327e0 | 1725 | /* Print the register in hex. */ |
a4bd449d | 1726 | val_print (register_type (gdbarch, i), buffer, 0, 0, |
d8ca156b | 1727 | file, 'x', 1, 0, Val_pretty_default, current_language); |
ab4327e0 EZ |
1728 | /* If not a vector register, print it also according to its |
1729 | natural format. */ | |
a4bd449d | 1730 | if (TYPE_VECTOR (register_type (gdbarch, i)) == 0) |
ab4327e0 | 1731 | { |
9d84ac84 | 1732 | fprintf_filtered (file, "\t"); |
a4bd449d | 1733 | val_print (register_type (gdbarch, i), buffer, 0, 0, |
d8ca156b | 1734 | file, 0, 1, 0, Val_pretty_default, current_language); |
ab4327e0 | 1735 | } |
c906108c SS |
1736 | } |
1737 | ||
0ab7a791 | 1738 | fprintf_filtered (file, "\n"); |
c906108c SS |
1739 | } |
1740 | } | |
c906108c | 1741 | |
c906108c | 1742 | void |
fba45db2 | 1743 | registers_info (char *addr_exp, int fpregs) |
c906108c | 1744 | { |
206415a3 | 1745 | struct frame_info *frame; |
a4bd449d | 1746 | struct gdbarch *gdbarch; |
c906108c | 1747 | int regnum, numregs; |
52f0bd74 | 1748 | char *end; |
c906108c SS |
1749 | |
1750 | if (!target_has_registers) | |
8a3fe4f8 | 1751 | error (_("The program has no registers now.")); |
206415a3 | 1752 | frame = get_selected_frame (NULL); |
a4bd449d | 1753 | gdbarch = get_frame_arch (frame); |
c906108c SS |
1754 | |
1755 | if (!addr_exp) | |
1756 | { | |
a4bd449d | 1757 | gdbarch_print_registers_info (gdbarch, gdb_stdout, |
206415a3 | 1758 | frame, -1, fpregs); |
c906108c SS |
1759 | return; |
1760 | } | |
1761 | ||
f9418c0f | 1762 | while (*addr_exp != '\0') |
c5aa993b | 1763 | { |
f9418c0f AC |
1764 | char *start; |
1765 | const char *end; | |
c906108c | 1766 | |
f9418c0f AC |
1767 | /* Keep skipping leading white space. */ |
1768 | if (isspace ((*addr_exp))) | |
1769 | { | |
1770 | addr_exp++; | |
1771 | continue; | |
1772 | } | |
c906108c | 1773 | |
f9418c0f AC |
1774 | /* Discard any leading ``$''. Check that there is something |
1775 | resembling a register following it. */ | |
1776 | if (addr_exp[0] == '$') | |
1777 | addr_exp++; | |
1778 | if (isspace ((*addr_exp)) || (*addr_exp) == '\0') | |
8a3fe4f8 | 1779 | error (_("Missing register name")); |
c906108c | 1780 | |
f9418c0f AC |
1781 | /* Find the start/end of this register name/num/group. */ |
1782 | start = addr_exp; | |
1783 | while ((*addr_exp) != '\0' && !isspace ((*addr_exp))) | |
1784 | addr_exp++; | |
1785 | end = addr_exp; | |
ad842144 | 1786 | |
f9418c0f AC |
1787 | /* Figure out what we've found and display it. */ |
1788 | ||
1789 | /* A register name? */ | |
1790 | { | |
ad842144 | 1791 | int regnum = frame_map_name_to_regnum (frame, start, end - start); |
f9418c0f AC |
1792 | if (regnum >= 0) |
1793 | { | |
ad842144 MR |
1794 | /* User registers lie completely outside of the range of |
1795 | normal registers. Catch them early so that the target | |
1796 | never sees them. */ | |
1797 | if (regnum >= gdbarch_num_regs (gdbarch) | |
1798 | + gdbarch_num_pseudo_regs (gdbarch)) | |
1799 | { | |
1800 | struct value *val = value_of_user_reg (regnum, frame); | |
1801 | ||
1802 | printf_filtered ("%s: ", start); | |
1803 | print_scalar_formatted (value_contents (val), | |
1804 | check_typedef (value_type (val)), | |
1805 | 'x', 0, gdb_stdout); | |
1806 | printf_filtered ("\n"); | |
1807 | } | |
1808 | else | |
1809 | gdbarch_print_registers_info (gdbarch, gdb_stdout, | |
1810 | frame, regnum, fpregs); | |
f9418c0f AC |
1811 | continue; |
1812 | } | |
1813 | } | |
ad842144 | 1814 | |
f9418c0f AC |
1815 | /* A register number? (how portable is this one?). */ |
1816 | { | |
1817 | char *endptr; | |
1818 | int regnum = strtol (start, &endptr, 0); | |
1819 | if (endptr == end | |
1820 | && regnum >= 0 | |
a4bd449d UW |
1821 | && regnum < gdbarch_num_regs (gdbarch) |
1822 | + gdbarch_num_pseudo_regs (gdbarch)) | |
f9418c0f | 1823 | { |
a4bd449d | 1824 | gdbarch_print_registers_info (gdbarch, gdb_stdout, |
206415a3 | 1825 | frame, regnum, fpregs); |
f9418c0f AC |
1826 | continue; |
1827 | } | |
1828 | } | |
1829 | ||
1830 | /* A register group? */ | |
1831 | { | |
6c7d17ba | 1832 | struct reggroup *group; |
a4bd449d | 1833 | for (group = reggroup_next (gdbarch, NULL); |
6c7d17ba | 1834 | group != NULL; |
a4bd449d | 1835 | group = reggroup_next (gdbarch, group)) |
f9418c0f AC |
1836 | { |
1837 | /* Don't bother with a length check. Should the user | |
1838 | enter a short register group name, go with the first | |
1839 | group that matches. */ | |
6c7d17ba | 1840 | if (strncmp (start, reggroup_name (group), end - start) == 0) |
f9418c0f AC |
1841 | break; |
1842 | } | |
6c7d17ba | 1843 | if (group != NULL) |
f9418c0f AC |
1844 | { |
1845 | int regnum; | |
f57d151a | 1846 | for (regnum = 0; |
a4bd449d UW |
1847 | regnum < gdbarch_num_regs (gdbarch) |
1848 | + gdbarch_num_pseudo_regs (gdbarch); | |
f57d151a | 1849 | regnum++) |
f9418c0f | 1850 | { |
a4bd449d UW |
1851 | if (gdbarch_register_reggroup_p (gdbarch, regnum, group)) |
1852 | gdbarch_print_registers_info (gdbarch, | |
206415a3 | 1853 | gdb_stdout, frame, |
f9418c0f AC |
1854 | regnum, fpregs); |
1855 | } | |
1856 | continue; | |
1857 | } | |
1858 | } | |
c906108c | 1859 | |
f9418c0f | 1860 | /* Nothing matched. */ |
8a3fe4f8 | 1861 | error (_("Invalid register `%.*s'"), (int) (end - start), start); |
c5aa993b | 1862 | } |
c906108c SS |
1863 | } |
1864 | ||
1865 | void | |
fba45db2 | 1866 | all_registers_info (char *addr_exp, int from_tty) |
c906108c SS |
1867 | { |
1868 | registers_info (addr_exp, 1); | |
1869 | } | |
1870 | ||
a58dd373 | 1871 | static void |
fba45db2 | 1872 | nofp_registers_info (char *addr_exp, int from_tty) |
c906108c SS |
1873 | { |
1874 | registers_info (addr_exp, 0); | |
1875 | } | |
e76f1f2e AC |
1876 | |
1877 | static void | |
1878 | print_vector_info (struct gdbarch *gdbarch, struct ui_file *file, | |
1879 | struct frame_info *frame, const char *args) | |
1880 | { | |
1881 | if (gdbarch_print_vector_info_p (gdbarch)) | |
1882 | gdbarch_print_vector_info (gdbarch, file, frame, args); | |
1883 | else | |
1884 | { | |
1885 | int regnum; | |
1886 | int printed_something = 0; | |
ab4327e0 | 1887 | |
f57d151a | 1888 | for (regnum = 0; |
a4bd449d UW |
1889 | regnum < gdbarch_num_regs (gdbarch) |
1890 | + gdbarch_num_pseudo_regs (gdbarch); | |
f57d151a | 1891 | regnum++) |
e76f1f2e | 1892 | { |
f9418c0f | 1893 | if (gdbarch_register_reggroup_p (gdbarch, regnum, vector_reggroup)) |
e76f1f2e AC |
1894 | { |
1895 | printed_something = 1; | |
e76f1f2e | 1896 | gdbarch_print_registers_info (gdbarch, file, frame, regnum, 1); |
e76f1f2e AC |
1897 | } |
1898 | } | |
1899 | if (!printed_something) | |
1900 | fprintf_filtered (file, "No vector information\n"); | |
1901 | } | |
1902 | } | |
1903 | ||
1904 | static void | |
1905 | vector_info (char *args, int from_tty) | |
1906 | { | |
206415a3 DJ |
1907 | if (!target_has_registers) |
1908 | error (_("The program has no registers now.")); | |
1909 | ||
1910 | print_vector_info (current_gdbarch, gdb_stdout, | |
1911 | get_selected_frame (NULL), args); | |
e76f1f2e | 1912 | } |
c906108c | 1913 | \f |
c5aa993b | 1914 | |
c906108c SS |
1915 | /* |
1916 | * TODO: | |
1917 | * Should save/restore the tty state since it might be that the | |
1918 | * program to be debugged was started on this tty and it wants | |
1919 | * the tty in some state other than what we want. If it's running | |
1920 | * on another terminal or without a terminal, then saving and | |
1921 | * restoring the tty state is a harmless no-op. | |
1922 | * This only needs to be done if we are attaching to a process. | |
1923 | */ | |
1924 | ||
1925 | /* | |
1926 | attach_command -- | |
1927 | takes a program started up outside of gdb and ``attaches'' to it. | |
1928 | This stops it cold in its tracks and allows us to start debugging it. | |
1929 | and wait for the trace-trap that results from attaching. */ | |
1930 | ||
9356cf8d PA |
1931 | static void |
1932 | attach_command_post_wait (char *args, int from_tty, int async_exec) | |
1933 | { | |
1934 | char *exec_file; | |
1935 | char *full_exec_path = NULL; | |
1936 | ||
1937 | stop_soon = NO_STOP_QUIETLY; | |
1938 | ||
1939 | /* If no exec file is yet known, try to determine it from the | |
1940 | process itself. */ | |
1941 | exec_file = (char *) get_exec_file (0); | |
1942 | if (!exec_file) | |
1943 | { | |
1944 | exec_file = target_pid_to_exec_file (PIDGET (inferior_ptid)); | |
1945 | if (exec_file) | |
1946 | { | |
1947 | /* It's possible we don't have a full path, but rather just a | |
1948 | filename. Some targets, such as HP-UX, don't provide the | |
1949 | full path, sigh. | |
1950 | ||
1951 | Attempt to qualify the filename against the source path. | |
1952 | (If that fails, we'll just fall back on the original | |
1953 | filename. Not much more we can do...) | |
1954 | */ | |
1955 | if (!source_full_path_of (exec_file, &full_exec_path)) | |
1956 | full_exec_path = savestring (exec_file, strlen (exec_file)); | |
1957 | ||
1958 | exec_file_attach (full_exec_path, from_tty); | |
1959 | symbol_file_add_main (full_exec_path, from_tty); | |
1960 | } | |
1961 | } | |
1962 | else | |
1963 | { | |
1964 | reopen_exec_file (); | |
1965 | reread_symbols (); | |
1966 | } | |
1967 | ||
1968 | /* Take any necessary post-attaching actions for this platform. */ | |
1969 | target_post_attach (PIDGET (inferior_ptid)); | |
1970 | ||
1971 | post_create_inferior (¤t_target, from_tty); | |
1972 | ||
1973 | /* Install inferior's terminal modes. */ | |
1974 | target_terminal_inferior (); | |
1975 | ||
1976 | if (async_exec) | |
1977 | proceed ((CORE_ADDR) -1, TARGET_SIGNAL_0, 0); | |
1978 | else | |
1979 | { | |
1980 | if (target_can_async_p ()) | |
1981 | async_enable_stdin (); | |
1982 | normal_stop (); | |
1983 | if (deprecated_attach_hook) | |
1984 | deprecated_attach_hook (); | |
1985 | } | |
1986 | } | |
1987 | ||
1988 | static void | |
f107f563 | 1989 | attach_command_continuation (struct continuation_arg *arg, int error_p) |
9356cf8d PA |
1990 | { |
1991 | char *args; | |
1992 | int from_tty; | |
1993 | int async_exec; | |
1994 | ||
1995 | args = (char *) arg->data.pointer; | |
1996 | from_tty = arg->next->data.integer; | |
1997 | async_exec = arg->next->next->data.integer; | |
1998 | ||
1999 | attach_command_post_wait (args, from_tty, async_exec); | |
2000 | } | |
2001 | ||
c906108c | 2002 | void |
fba45db2 | 2003 | attach_command (char *args, int from_tty) |
c906108c | 2004 | { |
c5aa993b JM |
2005 | char *exec_file; |
2006 | char *full_exec_path = NULL; | |
9356cf8d | 2007 | int async_exec = 0; |
c906108c | 2008 | |
c5aa993b | 2009 | dont_repeat (); /* Not for the faint of heart */ |
c906108c SS |
2010 | |
2011 | if (target_has_execution) | |
2012 | { | |
2013 | if (query ("A program is being debugged already. Kill it? ")) | |
2014 | target_kill (); | |
2015 | else | |
8a3fe4f8 | 2016 | error (_("Not killed.")); |
c906108c SS |
2017 | } |
2018 | ||
fd79ecee DJ |
2019 | /* Clean up any leftovers from other runs. Some other things from |
2020 | this function should probably be moved into target_pre_inferior. */ | |
2021 | target_pre_inferior (from_tty); | |
2022 | ||
4bcff7eb CV |
2023 | /* Clear out solib state. Otherwise the solib state of the previous |
2024 | inferior might have survived and is entirely wrong for the new | |
155bd5d1 AC |
2025 | target. This has been observed on GNU/Linux using glibc 2.3. How |
2026 | to reproduce: | |
4bcff7eb CV |
2027 | |
2028 | bash$ ./foo& | |
2029 | [1] 4711 | |
2030 | bash$ ./foo& | |
2031 | [1] 4712 | |
2032 | bash$ gdb ./foo | |
2033 | [...] | |
2034 | (gdb) attach 4711 | |
2035 | (gdb) detach | |
2036 | (gdb) attach 4712 | |
2037 | Cannot access memory at address 0xdeadbeef | |
2038 | */ | |
7a72d44c | 2039 | clear_solib (); |
4bcff7eb | 2040 | |
9356cf8d PA |
2041 | if (args) |
2042 | { | |
2043 | async_exec = strip_bg_char (&args); | |
2044 | ||
2045 | /* If we get a request for running in the bg but the target | |
2046 | doesn't support it, error out. */ | |
2047 | if (async_exec && !target_can_async_p ()) | |
2048 | error (_("Asynchronous execution not supported on this target.")); | |
2049 | } | |
2050 | ||
2051 | /* If we don't get a request of running in the bg, then we need | |
2052 | to simulate synchronous (fg) execution. */ | |
2053 | if (!async_exec && target_can_async_p ()) | |
2054 | { | |
2055 | /* Simulate synchronous execution */ | |
2056 | async_disable_stdin (); | |
2057 | } | |
2058 | ||
c906108c SS |
2059 | target_attach (args, from_tty); |
2060 | ||
2061 | /* Set up the "saved terminal modes" of the inferior | |
2062 | based on what modes we are starting it with. */ | |
2063 | target_terminal_init (); | |
2064 | ||
c906108c SS |
2065 | /* Set up execution context to know that we should return from |
2066 | wait_for_inferior as soon as the target reports a stop. */ | |
2067 | init_wait_for_inferior (); | |
2068 | clear_proceed_status (); | |
c906108c | 2069 | |
dc177b7a PA |
2070 | /* Some system don't generate traps when attaching to inferior. |
2071 | E.g. Mach 3 or GNU hurd. */ | |
2072 | if (!target_attach_no_wait) | |
c5aa993b | 2073 | { |
dc177b7a PA |
2074 | /* Careful here. See comments in inferior.h. Basically some |
2075 | OSes don't ignore SIGSTOPs on continue requests anymore. We | |
2076 | need a way for handle_inferior_event to reset the stop_signal | |
2077 | variable after an attach, and this is what | |
2078 | STOP_QUIETLY_NO_SIGSTOP is for. */ | |
2079 | stop_soon = STOP_QUIETLY_NO_SIGSTOP; | |
c5aa993b | 2080 | |
dc177b7a PA |
2081 | if (target_can_async_p ()) |
2082 | { | |
2083 | /* sync_execution mode. Wait for stop. */ | |
2084 | struct continuation_arg *arg1, *arg2, *arg3; | |
2085 | ||
2086 | arg1 = | |
2087 | (struct continuation_arg *) xmalloc (sizeof (struct continuation_arg)); | |
2088 | arg2 = | |
2089 | (struct continuation_arg *) xmalloc (sizeof (struct continuation_arg)); | |
2090 | arg3 = | |
2091 | (struct continuation_arg *) xmalloc (sizeof (struct continuation_arg)); | |
2092 | arg1->next = arg2; | |
2093 | arg2->next = arg3; | |
2094 | arg3->next = NULL; | |
2095 | arg1->data.pointer = args; | |
2096 | arg2->data.integer = from_tty; | |
2097 | arg3->data.integer = async_exec; | |
2098 | add_continuation (attach_command_continuation, arg1); | |
2099 | return; | |
2100 | } | |
c906108c | 2101 | |
dc177b7a PA |
2102 | wait_for_inferior (0); |
2103 | } | |
6426a772 | 2104 | |
9356cf8d | 2105 | attach_command_post_wait (args, from_tty, async_exec); |
c906108c SS |
2106 | } |
2107 | ||
2108 | /* | |
2109 | * detach_command -- | |
2110 | * takes a program previously attached to and detaches it. | |
2111 | * The program resumes execution and will no longer stop | |
2112 | * on signals, etc. We better not have left any breakpoints | |
2113 | * in the program or it'll die when it hits one. For this | |
2114 | * to work, it may be necessary for the process to have been | |
2115 | * previously attached. It *might* work if the program was | |
2116 | * started via the normal ptrace (PTRACE_TRACEME). | |
2117 | */ | |
2118 | ||
2119 | static void | |
fba45db2 | 2120 | detach_command (char *args, int from_tty) |
c906108c | 2121 | { |
1f5d0fc9 | 2122 | dont_repeat (); /* Not for the faint of heart. */ |
c906108c | 2123 | target_detach (args, from_tty); |
e85a822c | 2124 | no_shared_libraries (NULL, from_tty); |
a0ef4274 | 2125 | init_thread_list (); |
9a4105ab AC |
2126 | if (deprecated_detach_hook) |
2127 | deprecated_detach_hook (); | |
c906108c SS |
2128 | } |
2129 | ||
6ad8ae5c DJ |
2130 | /* Disconnect from the current target without resuming it (leaving it |
2131 | waiting for a debugger). | |
2132 | ||
2133 | We'd better not have left any breakpoints in the program or the | |
2134 | next debugger will get confused. Currently only supported for some | |
2135 | remote targets, since the normal attach mechanisms don't work on | |
2136 | stopped processes on some native platforms (e.g. GNU/Linux). */ | |
2137 | ||
2138 | static void | |
2139 | disconnect_command (char *args, int from_tty) | |
2140 | { | |
2141 | dont_repeat (); /* Not for the faint of heart */ | |
2142 | target_disconnect (args, from_tty); | |
e85a822c | 2143 | no_shared_libraries (NULL, from_tty); |
a0ef4274 | 2144 | init_thread_list (); |
9a4105ab AC |
2145 | if (deprecated_detach_hook) |
2146 | deprecated_detach_hook (); | |
6ad8ae5c DJ |
2147 | } |
2148 | ||
43ff13b4 | 2149 | /* Stop the execution of the target while running in async mode, in |
8cae4b3f PA |
2150 | the backgound. In all-stop, stop the whole process. In non-stop |
2151 | mode, stop the current thread only by default, or stop all threads | |
2152 | if the `-a' switch is used. */ | |
2153 | ||
2154 | /* interrupt [-a] */ | |
8b93c638 | 2155 | void |
fba45db2 | 2156 | interrupt_target_command (char *args, int from_tty) |
43ff13b4 | 2157 | { |
362646f5 | 2158 | if (target_can_async_p ()) |
43ff13b4 | 2159 | { |
8cae4b3f PA |
2160 | ptid_t ptid; |
2161 | int all_threads = 0; | |
2162 | ||
c5aa993b | 2163 | dont_repeat (); /* Not for the faint of heart */ |
94cc34af | 2164 | |
8cae4b3f PA |
2165 | if (args != NULL |
2166 | && strncmp (args, "-a", sizeof ("-a") - 1) == 0) | |
2167 | all_threads = 1; | |
2168 | ||
2169 | if (!non_stop && all_threads) | |
2170 | error (_("-a is meaningless in all-stop mode.")); | |
2171 | ||
2172 | if (all_threads) | |
2173 | ptid = minus_one_ptid; | |
2174 | else | |
2175 | ptid = inferior_ptid; | |
2176 | ||
2177 | target_stop (ptid); | |
43ff13b4 JM |
2178 | } |
2179 | } | |
2180 | ||
c906108c | 2181 | static void |
23e3a7ac AC |
2182 | print_float_info (struct gdbarch *gdbarch, struct ui_file *file, |
2183 | struct frame_info *frame, const char *args) | |
c906108c | 2184 | { |
23e3a7ac AC |
2185 | if (gdbarch_print_float_info_p (gdbarch)) |
2186 | gdbarch_print_float_info (gdbarch, file, frame, args); | |
2187 | else | |
2188 | { | |
23e3a7ac AC |
2189 | int regnum; |
2190 | int printed_something = 0; | |
ab4327e0 | 2191 | |
f57d151a | 2192 | for (regnum = 0; |
a4bd449d UW |
2193 | regnum < gdbarch_num_regs (gdbarch) |
2194 | + gdbarch_num_pseudo_regs (gdbarch); | |
f57d151a | 2195 | regnum++) |
23e3a7ac | 2196 | { |
f9418c0f | 2197 | if (gdbarch_register_reggroup_p (gdbarch, regnum, float_reggroup)) |
23e3a7ac AC |
2198 | { |
2199 | printed_something = 1; | |
23e3a7ac | 2200 | gdbarch_print_registers_info (gdbarch, file, frame, regnum, 1); |
23e3a7ac AC |
2201 | } |
2202 | } | |
2203 | if (!printed_something) | |
2204 | fprintf_filtered (file, "\ | |
2205 | No floating-point info available for this processor.\n"); | |
23e3a7ac AC |
2206 | } |
2207 | } | |
2208 | ||
2209 | static void | |
2210 | float_info (char *args, int from_tty) | |
2211 | { | |
206415a3 DJ |
2212 | if (!target_has_registers) |
2213 | error (_("The program has no registers now.")); | |
2214 | ||
1f5d0fc9 | 2215 | print_float_info (current_gdbarch, gdb_stdout, |
206415a3 | 2216 | get_selected_frame (NULL), args); |
c906108c SS |
2217 | } |
2218 | \f | |
c906108c | 2219 | static void |
fba45db2 | 2220 | unset_command (char *args, int from_tty) |
c906108c | 2221 | { |
a3f17187 AC |
2222 | printf_filtered (_("\ |
2223 | \"unset\" must be followed by the name of an unset subcommand.\n")); | |
c906108c SS |
2224 | help_list (unsetlist, "unset ", -1, gdb_stdout); |
2225 | } | |
2226 | ||
2227 | void | |
fba45db2 | 2228 | _initialize_infcmd (void) |
c906108c | 2229 | { |
3cb3b8df BR |
2230 | struct cmd_list_element *c = NULL; |
2231 | ||
2232 | /* add the filename of the terminal connected to inferior I/O */ | |
2233 | add_setshow_filename_cmd ("inferior-tty", class_run, | |
2234 | &inferior_io_terminal, _("\ | |
2235 | Set terminal for future runs of program being debugged."), _("\ | |
2236 | Show terminal for future runs of program being debugged."), _("\ | |
2237 | Usage: set inferior-tty /dev/pts/1"), NULL, NULL, &setlist, &showlist); | |
2238 | add_com_alias ("tty", "set inferior-tty", class_alias, 0); | |
c906108c | 2239 | |
b4b4ac0b AC |
2240 | add_setshow_optional_filename_cmd ("args", class_run, |
2241 | &inferior_args, _("\ | |
2242 | Set argument list to give program being debugged when it is started."), _("\ | |
2243 | Show argument list to give program being debugged when it is started."), _("\ | |
2244 | Follow this command with any number of args, to be passed to the program."), | |
2245 | notice_args_set, | |
2246 | notice_args_read, | |
2247 | &setlist, &showlist); | |
c906108c | 2248 | |
1a966eab AC |
2249 | c = add_cmd ("environment", no_class, environment_info, _("\ |
2250 | The environment to give the program, or one variable's value.\n\ | |
c906108c SS |
2251 | With an argument VAR, prints the value of environment variable VAR to\n\ |
2252 | give the program being debugged. With no arguments, prints the entire\n\ | |
1a966eab | 2253 | environment to be given to the program."), &showlist); |
5ba2abeb | 2254 | set_cmd_completer (c, noop_completer); |
c906108c SS |
2255 | |
2256 | add_prefix_cmd ("unset", no_class, unset_command, | |
1bedd215 | 2257 | _("Complement to certain \"set\" commands."), |
c906108c | 2258 | &unsetlist, "unset ", 0, &cmdlist); |
c5aa993b | 2259 | |
1a966eab AC |
2260 | c = add_cmd ("environment", class_run, unset_environment_command, _("\ |
2261 | Cancel environment variable VAR for the program.\n\ | |
2262 | This does not affect the program until the next \"run\" command."), | |
c5aa993b | 2263 | &unsetlist); |
5ba2abeb | 2264 | set_cmd_completer (c, noop_completer); |
c906108c | 2265 | |
1a966eab AC |
2266 | c = add_cmd ("environment", class_run, set_environment_command, _("\ |
2267 | Set environment variable value to give the program.\n\ | |
c906108c SS |
2268 | Arguments are VAR VALUE where VAR is variable name and VALUE is value.\n\ |
2269 | VALUES of environment variables are uninterpreted strings.\n\ | |
1a966eab | 2270 | This does not affect the program until the next \"run\" command."), |
c5aa993b | 2271 | &setlist); |
5ba2abeb | 2272 | set_cmd_completer (c, noop_completer); |
c5aa993b | 2273 | |
1bedd215 AC |
2274 | c = add_com ("path", class_files, path_command, _("\ |
2275 | Add directory DIR(s) to beginning of search path for object files.\n\ | |
c906108c SS |
2276 | $cwd in the path means the current working directory.\n\ |
2277 | This path is equivalent to the $PATH shell variable. It is a list of\n\ | |
2278 | directories, separated by colons. These directories are searched to find\n\ | |
1bedd215 | 2279 | fully linked executable files and separately compiled object files as needed.")); |
5ba2abeb | 2280 | set_cmd_completer (c, filename_completer); |
c906108c | 2281 | |
1a966eab AC |
2282 | c = add_cmd ("paths", no_class, path_info, _("\ |
2283 | Current search path for finding object files.\n\ | |
c906108c SS |
2284 | $cwd in the path means the current working directory.\n\ |
2285 | This path is equivalent to the $PATH shell variable. It is a list of\n\ | |
2286 | directories, separated by colons. These directories are searched to find\n\ | |
1a966eab | 2287 | fully linked executable files and separately compiled object files as needed."), |
c906108c | 2288 | &showlist); |
5ba2abeb | 2289 | set_cmd_completer (c, noop_completer); |
c906108c | 2290 | |
1bedd215 AC |
2291 | add_com ("attach", class_run, attach_command, _("\ |
2292 | Attach to a process or file outside of GDB.\n\ | |
c906108c SS |
2293 | This command attaches to another target, of the same type as your last\n\ |
2294 | \"target\" command (\"info files\" will show your target stack).\n\ | |
2295 | The command may take as argument a process id or a device file.\n\ | |
2296 | For a process id, you must have permission to send the process a signal,\n\ | |
2297 | and it must have the same effective uid as the debugger.\n\ | |
2298 | When using \"attach\" with a process id, the debugger finds the\n\ | |
2299 | program running in the process, looking first in the current working\n\ | |
2300 | directory, or (if not found there) using the source file search path\n\ | |
2301 | (see the \"directory\" command). You can also use the \"file\" command\n\ | |
1bedd215 | 2302 | to specify the program, and to load its symbol table.")); |
c906108c | 2303 | |
f73adfeb | 2304 | add_prefix_cmd ("detach", class_run, detach_command, _("\ |
1bedd215 | 2305 | Detach a process or file previously attached.\n\ |
c906108c | 2306 | If a process, it is no longer traced, and it continues its execution. If\n\ |
f73adfeb AS |
2307 | you were debugging a file, the file is closed and gdb no longer accesses it."), |
2308 | &detachlist, "detach ", 0, &cmdlist); | |
c906108c | 2309 | |
1bedd215 AC |
2310 | add_com ("disconnect", class_run, disconnect_command, _("\ |
2311 | Disconnect from a target.\n\ | |
6ad8ae5c | 2312 | The target will wait for another debugger to connect. Not available for\n\ |
1bedd215 | 2313 | all targets.")); |
6ad8ae5c | 2314 | |
1bedd215 AC |
2315 | add_com ("signal", class_run, signal_command, _("\ |
2316 | Continue program giving it signal specified by the argument.\n\ | |
2317 | An argument of \"0\" means continue program without giving it a signal.")); | |
c906108c | 2318 | |
1bedd215 AC |
2319 | add_com ("stepi", class_run, stepi_command, _("\ |
2320 | Step one instruction exactly.\n\ | |
2321 | Argument N means do this N times (or till program stops for another reason).")); | |
c906108c SS |
2322 | add_com_alias ("si", "stepi", class_alias, 0); |
2323 | ||
1bedd215 AC |
2324 | add_com ("nexti", class_run, nexti_command, _("\ |
2325 | Step one instruction, but proceed through subroutine calls.\n\ | |
2326 | Argument N means do this N times (or till program stops for another reason).")); | |
c906108c SS |
2327 | add_com_alias ("ni", "nexti", class_alias, 0); |
2328 | ||
1bedd215 AC |
2329 | add_com ("finish", class_run, finish_command, _("\ |
2330 | Execute until selected stack frame returns.\n\ | |
2331 | Upon return, the value returned is printed and put in the value history.")); | |
0e479716 | 2332 | add_com_alias ("fin", "finish", class_run, 1); |
c906108c | 2333 | |
1bedd215 AC |
2334 | add_com ("next", class_run, next_command, _("\ |
2335 | Step program, proceeding through subroutine calls.\n\ | |
c906108c SS |
2336 | Like the \"step\" command as long as subroutine calls do not happen;\n\ |
2337 | when they do, the call is treated as one instruction.\n\ | |
1bedd215 | 2338 | Argument N means do this N times (or till program stops for another reason).")); |
c906108c SS |
2339 | add_com_alias ("n", "next", class_run, 1); |
2340 | if (xdb_commands) | |
c5aa993b | 2341 | add_com_alias ("S", "next", class_run, 1); |
c906108c | 2342 | |
1bedd215 AC |
2343 | add_com ("step", class_run, step_command, _("\ |
2344 | Step program until it reaches a different source line.\n\ | |
2345 | Argument N means do this N times (or till program stops for another reason).")); | |
c906108c SS |
2346 | add_com_alias ("s", "step", class_run, 1); |
2347 | ||
1bedd215 AC |
2348 | c = add_com ("until", class_run, until_command, _("\ |
2349 | Execute until the program reaches a source line greater than the current\n\ | |
2350 | or a specified location (same args as break command) within the current frame.")); | |
5ba2abeb | 2351 | set_cmd_completer (c, location_completer); |
c906108c | 2352 | add_com_alias ("u", "until", class_run, 1); |
c5aa993b | 2353 | |
1bedd215 AC |
2354 | c = add_com ("advance", class_run, advance_command, _("\ |
2355 | Continue the program up to the given location (same form as args for break command).\n\ | |
2356 | Execution will also stop upon exit from the current stack frame.")); | |
ae66c1fc EZ |
2357 | set_cmd_completer (c, location_completer); |
2358 | ||
1bedd215 AC |
2359 | c = add_com ("jump", class_run, jump_command, _("\ |
2360 | Continue program being debugged at specified line or address.\n\ | |
c906108c | 2361 | Give as argument either LINENUM or *ADDR, where ADDR is an expression\n\ |
1bedd215 | 2362 | for an address to start at.")); |
5ba2abeb | 2363 | set_cmd_completer (c, location_completer); |
c906108c | 2364 | |
b83266a0 | 2365 | if (xdb_commands) |
c94fdfd0 | 2366 | { |
1bedd215 AC |
2367 | c = add_com ("go", class_run, go_command, _("\ |
2368 | Usage: go <location>\n\ | |
c906108c SS |
2369 | Continue program being debugged, stopping at specified line or \n\ |
2370 | address.\n\ | |
2371 | Give as argument either LINENUM or *ADDR, where ADDR is an \n\ | |
2372 | expression for an address to start at.\n\ | |
1bedd215 | 2373 | This command is a combination of tbreak and jump.")); |
5ba2abeb | 2374 | set_cmd_completer (c, location_completer); |
c94fdfd0 | 2375 | } |
b83266a0 | 2376 | |
c906108c | 2377 | if (xdb_commands) |
c5aa993b | 2378 | add_com_alias ("g", "go", class_run, 1); |
c906108c | 2379 | |
8cae4b3f | 2380 | c = add_com ("continue", class_run, continue_command, _("\ |
1bedd215 | 2381 | Continue program being debugged, after signal or breakpoint.\n\ |
c906108c SS |
2382 | If proceeding from breakpoint, a number N may be used as an argument,\n\ |
2383 | which means to set the ignore count of that breakpoint to N - 1 (so that\n\ | |
8cae4b3f PA |
2384 | the breakpoint won't break until the Nth time it is reached).\n\ |
2385 | \n\ | |
2386 | If non-stop mode is enabled, continue only the current thread,\n\ | |
2387 | otherwise all the threads in the program are continued. To \n\ | |
2388 | continue all stopped threads in non-stop mode, use the -a option.\n\ | |
2389 | Specifying -a and an ignore count simultaneously is an error.")); | |
c906108c SS |
2390 | add_com_alias ("c", "cont", class_run, 1); |
2391 | add_com_alias ("fg", "cont", class_run, 1); | |
8cae4b3f | 2392 | set_cmd_async_ok (c); |
c906108c | 2393 | |
1bedd215 AC |
2394 | c = add_com ("run", class_run, run_command, _("\ |
2395 | Start debugged program. You may specify arguments to give it.\n\ | |
c906108c SS |
2396 | Args may include \"*\", or \"[...]\"; they are expanded using \"sh\".\n\ |
2397 | Input and output redirection with \">\", \"<\", or \">>\" are also allowed.\n\n\ | |
2398 | With no arguments, uses arguments last specified (with \"run\" or \"set args\").\n\ | |
2399 | To cancel previous arguments and run with no arguments,\n\ | |
1bedd215 | 2400 | use \"set args\" without arguments.")); |
5ba2abeb | 2401 | set_cmd_completer (c, filename_completer); |
c906108c SS |
2402 | add_com_alias ("r", "run", class_run, 1); |
2403 | if (xdb_commands) | |
2404 | add_com ("R", class_run, run_no_args_command, | |
1bedd215 | 2405 | _("Start debugged program with no arguments.")); |
c906108c | 2406 | |
1bedd215 | 2407 | c = add_com ("start", class_run, start_command, _("\ |
a4d5f2e0 JB |
2408 | Run the debugged program until the beginning of the main procedure.\n\ |
2409 | You may specify arguments to give to your program, just as with the\n\ | |
1bedd215 | 2410 | \"run\" command.")); |
a4d5f2e0 JB |
2411 | set_cmd_completer (c, filename_completer); |
2412 | ||
700b53b1 | 2413 | c = add_com ("interrupt", class_run, interrupt_target_command, |
8cae4b3f PA |
2414 | _("Interrupt the execution of the debugged program.\n\ |
2415 | If non-stop mode is enabled, interrupt only the current thread,\n\ | |
2416 | otherwise all the threads in the program are stopped. To \n\ | |
2417 | interrupt all running threads in non-stop mode, use the -a option.")); | |
700b53b1 | 2418 | set_cmd_async_ok (c); |
43ff13b4 | 2419 | |
1bedd215 AC |
2420 | add_info ("registers", nofp_registers_info, _("\ |
2421 | List of integer registers and their contents, for selected stack frame.\n\ | |
2422 | Register name as argument means describe only that register.")); | |
7194c49b | 2423 | add_info_alias ("r", "registers", 1); |
c906108c SS |
2424 | |
2425 | if (xdb_commands) | |
1bedd215 AC |
2426 | add_com ("lr", class_info, nofp_registers_info, _("\ |
2427 | List of integer registers and their contents, for selected stack frame.\n\ | |
2428 | Register name as argument means describe only that register.")); | |
2429 | add_info ("all-registers", all_registers_info, _("\ | |
2430 | List of all registers and their contents, for selected stack frame.\n\ | |
2431 | Register name as argument means describe only that register.")); | |
c906108c SS |
2432 | |
2433 | add_info ("program", program_info, | |
1bedd215 | 2434 | _("Execution status of the program.")); |
c906108c SS |
2435 | |
2436 | add_info ("float", float_info, | |
1bedd215 | 2437 | _("Print the status of the floating point unit\n")); |
c906108c | 2438 | |
e76f1f2e | 2439 | add_info ("vector", vector_info, |
1bedd215 | 2440 | _("Print the status of the vector unit\n")); |
e76f1f2e | 2441 | |
c906108c SS |
2442 | inferior_environ = make_environ (); |
2443 | init_environ (inferior_environ); | |
2444 | } |