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" |
72cec141 | 53 | |
a58dd373 | 54 | /* Functions exported for general use, in inferior.h: */ |
c906108c | 55 | |
a14ed312 | 56 | void all_registers_info (char *, int); |
c906108c | 57 | |
a14ed312 | 58 | void registers_info (char *, int); |
c906108c | 59 | |
a58dd373 EZ |
60 | void nexti_command (char *, int); |
61 | ||
62 | void stepi_command (char *, int); | |
c906108c | 63 | |
a14ed312 | 64 | void continue_command (char *, int); |
c906108c | 65 | |
a58dd373 EZ |
66 | void interrupt_target_command (char *args, int from_tty); |
67 | ||
68 | /* Local functions: */ | |
69 | ||
70 | static void nofp_registers_info (char *, int); | |
71 | ||
c055b101 CV |
72 | static void print_return_value (struct type *func_type, |
73 | struct type *value_type); | |
11cf8741 | 74 | |
a14ed312 | 75 | static void finish_command_continuation (struct continuation_arg *); |
43ff13b4 | 76 | |
a14ed312 | 77 | static void until_next_command (int); |
c906108c | 78 | |
a14ed312 | 79 | static void until_command (char *, int); |
c906108c | 80 | |
a14ed312 | 81 | static void path_info (char *, int); |
c906108c | 82 | |
a14ed312 | 83 | static void path_command (char *, int); |
c906108c | 84 | |
a14ed312 | 85 | static void unset_command (char *, int); |
c906108c | 86 | |
a14ed312 | 87 | static void float_info (char *, int); |
c906108c | 88 | |
a14ed312 | 89 | static void detach_command (char *, int); |
c906108c | 90 | |
6ad8ae5c DJ |
91 | static void disconnect_command (char *, int); |
92 | ||
a14ed312 | 93 | static void unset_environment_command (char *, int); |
c906108c | 94 | |
a14ed312 | 95 | static void set_environment_command (char *, int); |
c906108c | 96 | |
a14ed312 | 97 | static void environment_info (char *, int); |
c906108c | 98 | |
a14ed312 | 99 | static void program_info (char *, int); |
c906108c | 100 | |
a14ed312 | 101 | static void finish_command (char *, int); |
c906108c | 102 | |
a14ed312 | 103 | static void signal_command (char *, int); |
c906108c | 104 | |
a14ed312 | 105 | static void jump_command (char *, int); |
c906108c | 106 | |
a14ed312 | 107 | static void step_1 (int, int, char *); |
c2d11a7d JM |
108 | static void step_once (int skip_subroutines, int single_inst, int count); |
109 | static void step_1_continuation (struct continuation_arg *arg); | |
c906108c | 110 | |
a14ed312 | 111 | static void next_command (char *, int); |
c906108c | 112 | |
a14ed312 | 113 | static void step_command (char *, int); |
c906108c | 114 | |
a14ed312 | 115 | static void run_command (char *, int); |
c906108c | 116 | |
a14ed312 | 117 | static void run_no_args_command (char *args, int from_tty); |
392a587b | 118 | |
a14ed312 | 119 | static void go_command (char *line_no, int from_tty); |
392a587b | 120 | |
a14ed312 | 121 | static int strip_bg_char (char **); |
43ff13b4 | 122 | |
a14ed312 | 123 | void _initialize_infcmd (void); |
c906108c SS |
124 | |
125 | #define GO_USAGE "Usage: go <location>\n" | |
126 | ||
c906108c | 127 | #define ERROR_NO_INFERIOR \ |
8a3fe4f8 | 128 | if (!target_has_execution) error (_("The program is not being run.")); |
c906108c SS |
129 | |
130 | /* String containing arguments to give to the program, separated by spaces. | |
131 | Empty string (pointer to '\0') means no args. */ | |
132 | ||
133 | static char *inferior_args; | |
134 | ||
552c04a7 TT |
135 | /* The inferior arguments as a vector. If INFERIOR_ARGC is nonzero, |
136 | then we must compute INFERIOR_ARGS from this (via the target). */ | |
137 | ||
138 | static int inferior_argc; | |
139 | static char **inferior_argv; | |
140 | ||
c906108c SS |
141 | /* File name for default use for standard in/out in the inferior. */ |
142 | ||
3cb3b8df | 143 | static char *inferior_io_terminal; |
c906108c SS |
144 | |
145 | /* Pid of our debugged inferior, or 0 if no inferior now. | |
146 | Since various parts of infrun.c test this to see whether there is a program | |
147 | being debugged it should be nonzero (currently 3 is used) for remote | |
148 | debugging. */ | |
149 | ||
39f77062 | 150 | ptid_t inferior_ptid; |
c906108c SS |
151 | |
152 | /* Last signal that the inferior received (why it stopped). */ | |
153 | ||
154 | enum target_signal stop_signal; | |
155 | ||
156 | /* Address at which inferior stopped. */ | |
157 | ||
158 | CORE_ADDR stop_pc; | |
159 | ||
160 | /* Chain containing status of breakpoint(s) that we have stopped at. */ | |
161 | ||
162 | bpstat stop_bpstat; | |
163 | ||
164 | /* Flag indicating that a command has proceeded the inferior past the | |
165 | current breakpoint. */ | |
166 | ||
167 | int breakpoint_proceeded; | |
168 | ||
169 | /* Nonzero if stopped due to a step command. */ | |
170 | ||
171 | int stop_step; | |
172 | ||
173 | /* Nonzero if stopped due to completion of a stack dummy routine. */ | |
174 | ||
175 | int stop_stack_dummy; | |
176 | ||
177 | /* Nonzero if stopped due to a random (unexpected) signal in inferior | |
178 | process. */ | |
179 | ||
180 | int stopped_by_random_signal; | |
181 | ||
182 | /* Range to single step within. | |
183 | If this is nonzero, respond to a single-step signal | |
184 | by continuing to step if the pc is in this range. */ | |
185 | ||
c5aa993b JM |
186 | CORE_ADDR step_range_start; /* Inclusive */ |
187 | CORE_ADDR step_range_end; /* Exclusive */ | |
c906108c SS |
188 | |
189 | /* Stack frame address as of when stepping command was issued. | |
190 | This is how we know when we step into a subroutine call, | |
191 | and how to set the frame for the breakpoint used to step out. */ | |
192 | ||
aa0cd9c1 | 193 | struct frame_id step_frame_id; |
c906108c | 194 | |
5fbbeb29 | 195 | enum step_over_calls_kind step_over_calls; |
c906108c SS |
196 | |
197 | /* If stepping, nonzero means step count is > 1 | |
198 | so don't print frame next time inferior stops | |
199 | if it stops due to stepping. */ | |
200 | ||
201 | int step_multi; | |
202 | ||
203 | /* Environment to use for running inferior, | |
204 | in format described in environ.h. */ | |
205 | ||
1bf1958d | 206 | struct gdb_environ *inferior_environ; |
c906108c | 207 | \f |
07091751 FN |
208 | /* Accessor routines. */ |
209 | ||
3cb3b8df BR |
210 | void |
211 | set_inferior_io_terminal (const char *terminal_name) | |
212 | { | |
213 | if (inferior_io_terminal) | |
214 | xfree (inferior_io_terminal); | |
215 | ||
216 | if (!terminal_name) | |
217 | inferior_io_terminal = NULL; | |
218 | else | |
219 | inferior_io_terminal = savestring (terminal_name, strlen (terminal_name)); | |
220 | } | |
221 | ||
222 | const char * | |
223 | get_inferior_io_terminal (void) | |
224 | { | |
225 | return inferior_io_terminal; | |
226 | } | |
227 | ||
07091751 FN |
228 | char * |
229 | get_inferior_args (void) | |
230 | { | |
552c04a7 TT |
231 | if (inferior_argc != 0) |
232 | { | |
233 | char *n, *old; | |
234 | ||
235 | n = gdbarch_construct_inferior_arguments (current_gdbarch, | |
236 | inferior_argc, inferior_argv); | |
237 | old = set_inferior_args (n); | |
238 | xfree (old); | |
239 | } | |
240 | ||
241 | if (inferior_args == NULL) | |
242 | inferior_args = xstrdup (""); | |
243 | ||
07091751 FN |
244 | return inferior_args; |
245 | } | |
246 | ||
247 | char * | |
248 | set_inferior_args (char *newargs) | |
249 | { | |
250 | char *saved_args = inferior_args; | |
251 | ||
252 | inferior_args = newargs; | |
552c04a7 TT |
253 | inferior_argc = 0; |
254 | inferior_argv = 0; | |
07091751 FN |
255 | |
256 | return saved_args; | |
257 | } | |
c5aa993b | 258 | |
552c04a7 TT |
259 | void |
260 | set_inferior_args_vector (int argc, char **argv) | |
261 | { | |
262 | inferior_argc = argc; | |
263 | inferior_argv = argv; | |
264 | } | |
265 | ||
266 | /* Notice when `set args' is run. */ | |
267 | static void | |
268 | notice_args_set (char *args, int from_tty, struct cmd_list_element *c) | |
269 | { | |
270 | inferior_argc = 0; | |
271 | inferior_argv = 0; | |
272 | } | |
273 | ||
274 | /* Notice when `show args' is run. */ | |
275 | static void | |
b4b4ac0b AC |
276 | notice_args_read (struct ui_file *file, int from_tty, |
277 | struct cmd_list_element *c, const char *value) | |
552c04a7 | 278 | { |
258c00cc TT |
279 | /* Note that we ignore the passed-in value in favor of computing it |
280 | directly. */ | |
281 | deprecated_show_value_hack (file, from_tty, c, get_inferior_args ()); | |
552c04a7 TT |
282 | } |
283 | ||
c2a727fa TT |
284 | \f |
285 | /* Compute command-line string given argument vector. This does the | |
286 | same shell processing as fork_inferior. */ | |
c2a727fa TT |
287 | char * |
288 | construct_inferior_arguments (struct gdbarch *gdbarch, int argc, char **argv) | |
289 | { | |
290 | char *result; | |
291 | ||
292 | if (STARTUP_WITH_SHELL) | |
293 | { | |
294 | /* This holds all the characters considered special to the | |
295 | typical Unix shells. We include `^' because the SunOS | |
296 | /bin/sh treats it as a synonym for `|'. */ | |
297 | char *special = "\"!#$&*()\\|[]{}<>?'\"`~^; \t\n"; | |
298 | int i; | |
299 | int length = 0; | |
300 | char *out, *cp; | |
301 | ||
302 | /* We over-compute the size. It shouldn't matter. */ | |
303 | for (i = 0; i < argc; ++i) | |
03c6228e | 304 | length += 2 * strlen (argv[i]) + 1 + 2 * (argv[i][0] == '\0'); |
c2a727fa TT |
305 | |
306 | result = (char *) xmalloc (length); | |
307 | out = result; | |
308 | ||
309 | for (i = 0; i < argc; ++i) | |
310 | { | |
311 | if (i > 0) | |
312 | *out++ = ' '; | |
313 | ||
03c6228e AS |
314 | /* Need to handle empty arguments specially. */ |
315 | if (argv[i][0] == '\0') | |
c2a727fa | 316 | { |
03c6228e AS |
317 | *out++ = '\''; |
318 | *out++ = '\''; | |
319 | } | |
320 | else | |
321 | { | |
322 | for (cp = argv[i]; *cp; ++cp) | |
323 | { | |
324 | if (strchr (special, *cp) != NULL) | |
325 | *out++ = '\\'; | |
326 | *out++ = *cp; | |
327 | } | |
c2a727fa TT |
328 | } |
329 | } | |
330 | *out = '\0'; | |
331 | } | |
332 | else | |
333 | { | |
334 | /* In this case we can't handle arguments that contain spaces, | |
335 | tabs, or newlines -- see breakup_args(). */ | |
336 | int i; | |
337 | int length = 0; | |
338 | ||
339 | for (i = 0; i < argc; ++i) | |
340 | { | |
341 | char *cp = strchr (argv[i], ' '); | |
342 | if (cp == NULL) | |
343 | cp = strchr (argv[i], '\t'); | |
344 | if (cp == NULL) | |
345 | cp = strchr (argv[i], '\n'); | |
346 | if (cp != NULL) | |
8a3fe4f8 | 347 | error (_("can't handle command-line argument containing whitespace")); |
c2a727fa TT |
348 | length += strlen (argv[i]) + 1; |
349 | } | |
350 | ||
351 | result = (char *) xmalloc (length); | |
352 | result[0] = '\0'; | |
353 | for (i = 0; i < argc; ++i) | |
354 | { | |
355 | if (i > 0) | |
356 | strcat (result, " "); | |
357 | strcat (result, argv[i]); | |
358 | } | |
359 | } | |
360 | ||
361 | return result; | |
362 | } | |
552c04a7 TT |
363 | \f |
364 | ||
43ff13b4 JM |
365 | /* This function detects whether or not a '&' character (indicating |
366 | background execution) has been added as *the last* of the arguments ARGS | |
367 | of a command. If it has, it removes it and returns 1. Otherwise it | |
368 | does nothing and returns 0. */ | |
c5aa993b | 369 | static int |
fba45db2 | 370 | strip_bg_char (char **args) |
43ff13b4 JM |
371 | { |
372 | char *p = NULL; | |
c5aa993b | 373 | |
9846de1b | 374 | p = strchr (*args, '&'); |
c5aa993b | 375 | |
9846de1b | 376 | if (p) |
43ff13b4 JM |
377 | { |
378 | if (p == (*args + strlen (*args) - 1)) | |
379 | { | |
c5aa993b | 380 | if (strlen (*args) > 1) |
43ff13b4 JM |
381 | { |
382 | do | |
383 | p--; | |
384 | while (*p == ' ' || *p == '\t'); | |
385 | *(p + 1) = '\0'; | |
386 | } | |
387 | else | |
388 | *args = 0; | |
389 | return 1; | |
390 | } | |
391 | } | |
392 | return 0; | |
393 | } | |
394 | ||
c906108c | 395 | void |
fba45db2 | 396 | tty_command (char *file, int from_tty) |
c906108c SS |
397 | { |
398 | if (file == 0) | |
e2e0b3e5 | 399 | error_no_arg (_("terminal name for running target process")); |
c906108c | 400 | |
3cb3b8df | 401 | set_inferior_io_terminal (file); |
c906108c SS |
402 | } |
403 | ||
281b533b DJ |
404 | /* Common actions to take after creating any sort of inferior, by any |
405 | means (running, attaching, connecting, et cetera). The target | |
406 | should be stopped. */ | |
407 | ||
408 | void | |
409 | post_create_inferior (struct target_ops *target, int from_tty) | |
410 | { | |
b79599ff DP |
411 | /* Be sure we own the terminal in case write operations are performed. */ |
412 | target_terminal_ours (); | |
413 | ||
424163ea DJ |
414 | /* If the target hasn't taken care of this already, do it now. |
415 | Targets which need to access registers during to_open, | |
416 | to_create_inferior, or to_attach should do it earlier; but many | |
417 | don't need to. */ | |
418 | target_find_description (); | |
419 | ||
9353355f DJ |
420 | if (exec_bfd) |
421 | { | |
422 | /* Sometimes the platform-specific hook loads initial shared | |
423 | libraries, and sometimes it doesn't. Try to do so first, so | |
de1b3c3d PA |
424 | that we can add them with the correct value for FROM_TTY. |
425 | If we made all the inferior hook methods consistent, | |
426 | this call could be removed. */ | |
9353355f DJ |
427 | #ifdef SOLIB_ADD |
428 | SOLIB_ADD (NULL, from_tty, target, auto_solib_add); | |
429 | #else | |
430 | solib_add (NULL, from_tty, target, auto_solib_add); | |
431 | #endif | |
432 | ||
433 | /* Create the hooks to handle shared library load and unload | |
434 | events. */ | |
435 | #ifdef SOLIB_CREATE_INFERIOR_HOOK | |
37706b70 | 436 | SOLIB_CREATE_INFERIOR_HOOK (PIDGET (inferior_ptid)); |
9353355f DJ |
437 | #else |
438 | solib_create_inferior_hook (); | |
439 | #endif | |
9353355f DJ |
440 | } |
441 | ||
281b533b DJ |
442 | observer_notify_inferior_created (target, from_tty); |
443 | } | |
444 | ||
a4d5f2e0 JB |
445 | /* Kill the inferior if already running. This function is designed |
446 | to be called when we are about to start the execution of the program | |
447 | from the beginning. Ask the user to confirm that he wants to restart | |
448 | the program being debugged when FROM_TTY is non-null. */ | |
c906108c | 449 | |
8edfe269 | 450 | static void |
a4d5f2e0 JB |
451 | kill_if_already_running (int from_tty) |
452 | { | |
39f77062 | 453 | if (! ptid_equal (inferior_ptid, null_ptid) && target_has_execution) |
c906108c | 454 | { |
8edfe269 DJ |
455 | /* Bail out before killing the program if we will not be able to |
456 | restart it. */ | |
457 | target_require_runnable (); | |
458 | ||
adf40b2e JM |
459 | if (from_tty |
460 | && !query ("The program being debugged has been started already.\n\ | |
c906108c | 461 | Start it from the beginning? ")) |
8a3fe4f8 | 462 | error (_("Program not restarted.")); |
c906108c | 463 | target_kill (); |
e85a822c | 464 | no_shared_libraries (NULL, from_tty); |
c906108c SS |
465 | init_wait_for_inferior (); |
466 | } | |
a4d5f2e0 JB |
467 | } |
468 | ||
f67a969f JB |
469 | /* Implement the "run" command. If TBREAK_AT_MAIN is set, then insert |
470 | a temporary breakpoint at the begining of the main program before | |
471 | running the program. */ | |
472 | ||
a4d5f2e0 | 473 | static void |
f67a969f | 474 | run_command_1 (char *args, int from_tty, int tbreak_at_main) |
a4d5f2e0 JB |
475 | { |
476 | char *exec_file; | |
c906108c | 477 | |
a4d5f2e0 JB |
478 | dont_repeat (); |
479 | ||
480 | kill_if_already_running (from_tty); | |
c906108c SS |
481 | clear_breakpoint_hit_counts (); |
482 | ||
fd79ecee DJ |
483 | /* Clean up any leftovers from other runs. Some other things from |
484 | this function should probably be moved into target_pre_inferior. */ | |
485 | target_pre_inferior (from_tty); | |
486 | ||
c906108c SS |
487 | /* Purge old solib objfiles. */ |
488 | objfile_purge_solibs (); | |
489 | ||
615b9dba | 490 | clear_solib (); |
c906108c | 491 | |
39ad761d JB |
492 | /* The comment here used to read, "The exec file is re-read every |
493 | time we do a generic_mourn_inferior, so we just have to worry | |
494 | about the symbol file." The `generic_mourn_inferior' function | |
495 | gets called whenever the program exits. However, suppose the | |
496 | program exits, and *then* the executable file changes? We need | |
497 | to check again here. Since reopen_exec_file doesn't do anything | |
498 | if the timestamp hasn't changed, I don't see the harm. */ | |
499 | reopen_exec_file (); | |
c906108c SS |
500 | reread_symbols (); |
501 | ||
f67a969f JB |
502 | /* Insert the temporary breakpoint if a location was specified. */ |
503 | if (tbreak_at_main) | |
504 | tbreak_command (main_name (), 0); | |
505 | ||
39ad761d JB |
506 | exec_file = (char *) get_exec_file (0); |
507 | ||
c906108c SS |
508 | /* We keep symbols from add-symbol-file, on the grounds that the |
509 | user might want to add some symbols before running the program | |
510 | (right?). But sometimes (dynamic loading where the user manually | |
511 | introduces the new symbols with add-symbol-file), the code which | |
512 | the symbols describe does not persist between runs. Currently | |
513 | the user has to manually nuke all symbols between runs if they | |
514 | want them to go away (PR 2207). This is probably reasonable. */ | |
515 | ||
43ff13b4 | 516 | if (!args) |
6426a772 | 517 | { |
362646f5 | 518 | if (target_can_async_p ()) |
6426a772 JM |
519 | async_disable_stdin (); |
520 | } | |
43ff13b4 | 521 | else |
c906108c | 522 | { |
43ff13b4 JM |
523 | int async_exec = strip_bg_char (&args); |
524 | ||
525 | /* If we get a request for running in the bg but the target | |
526 | doesn't support it, error out. */ | |
362646f5 | 527 | if (async_exec && !target_can_async_p ()) |
8a3fe4f8 | 528 | error (_("Asynchronous execution not supported on this target.")); |
43ff13b4 JM |
529 | |
530 | /* If we don't get a request of running in the bg, then we need | |
c5aa993b | 531 | to simulate synchronous (fg) execution. */ |
362646f5 | 532 | if (!async_exec && target_can_async_p ()) |
43ff13b4 JM |
533 | { |
534 | /* Simulate synchronous execution */ | |
6426a772 | 535 | async_disable_stdin (); |
43ff13b4 JM |
536 | } |
537 | ||
538 | /* If there were other args, beside '&', process them. */ | |
539 | if (args) | |
540 | { | |
07091751 FN |
541 | char *old_args = set_inferior_args (xstrdup (args)); |
542 | xfree (old_args); | |
43ff13b4 | 543 | } |
c906108c SS |
544 | } |
545 | ||
546 | if (from_tty) | |
547 | { | |
8b93c638 JM |
548 | ui_out_field_string (uiout, NULL, "Starting program"); |
549 | ui_out_text (uiout, ": "); | |
550 | if (exec_file) | |
551 | ui_out_field_string (uiout, "execfile", exec_file); | |
552 | ui_out_spaces (uiout, 1); | |
552c04a7 TT |
553 | /* We call get_inferior_args() because we might need to compute |
554 | the value now. */ | |
555 | ui_out_field_string (uiout, "infargs", get_inferior_args ()); | |
8b93c638 JM |
556 | ui_out_text (uiout, "\n"); |
557 | ui_out_flush (uiout); | |
c906108c SS |
558 | } |
559 | ||
552c04a7 TT |
560 | /* We call get_inferior_args() because we might need to compute |
561 | the value now. */ | |
562 | target_create_inferior (exec_file, get_inferior_args (), | |
c27cda74 | 563 | environ_vector (inferior_environ), from_tty); |
281b533b | 564 | |
de1b3c3d PA |
565 | /* Pass zero for FROM_TTY, because at this point the "run" command |
566 | has done its thing; now we are setting up the running program. */ | |
567 | post_create_inferior (¤t_target, 0); | |
281b533b DJ |
568 | |
569 | /* Start the target running. */ | |
570 | proceed ((CORE_ADDR) -1, TARGET_SIGNAL_0, 0); | |
c906108c SS |
571 | } |
572 | ||
573 | ||
f67a969f JB |
574 | static void |
575 | run_command (char *args, int from_tty) | |
576 | { | |
577 | run_command_1 (args, from_tty, 0); | |
578 | } | |
579 | ||
c906108c | 580 | static void |
fba45db2 | 581 | run_no_args_command (char *args, int from_tty) |
c906108c | 582 | { |
07091751 FN |
583 | char *old_args = set_inferior_args (xstrdup ("")); |
584 | xfree (old_args); | |
c906108c | 585 | } |
c906108c | 586 | \f |
c5aa993b | 587 | |
a4d5f2e0 JB |
588 | /* Start the execution of the program up until the beginning of the main |
589 | program. */ | |
590 | ||
591 | static void | |
592 | start_command (char *args, int from_tty) | |
593 | { | |
594 | /* Some languages such as Ada need to search inside the program | |
595 | minimal symbols for the location where to put the temporary | |
596 | breakpoint before starting. */ | |
597 | if (!have_minimal_symbols ()) | |
8a3fe4f8 | 598 | error (_("No symbol table loaded. Use the \"file\" command.")); |
a4d5f2e0 | 599 | |
f67a969f JB |
600 | /* Run the program until reaching the main procedure... */ |
601 | run_command_1 (args, from_tty, 1); | |
a4d5f2e0 JB |
602 | } |
603 | ||
c906108c | 604 | void |
fba45db2 | 605 | continue_command (char *proc_count_exp, int from_tty) |
c906108c | 606 | { |
c5aa993b | 607 | int async_exec = 0; |
c906108c SS |
608 | ERROR_NO_INFERIOR; |
609 | ||
43ff13b4 JM |
610 | /* Find out whether we must run in the background. */ |
611 | if (proc_count_exp != NULL) | |
612 | async_exec = strip_bg_char (&proc_count_exp); | |
613 | ||
614 | /* If we must run in the background, but the target can't do it, | |
615 | error out. */ | |
362646f5 | 616 | if (async_exec && !target_can_async_p ()) |
8a3fe4f8 | 617 | error (_("Asynchronous execution not supported on this target.")); |
43ff13b4 JM |
618 | |
619 | /* If we are not asked to run in the bg, then prepare to run in the | |
620 | foreground, synchronously. */ | |
362646f5 | 621 | if (!async_exec && target_can_async_p ()) |
c5aa993b | 622 | { |
43ff13b4 | 623 | /* Simulate synchronous execution */ |
6426a772 | 624 | async_disable_stdin (); |
43ff13b4 | 625 | } |
c906108c | 626 | |
43ff13b4 JM |
627 | /* If have argument (besides '&'), set proceed count of breakpoint |
628 | we stopped at. */ | |
c906108c SS |
629 | if (proc_count_exp != NULL) |
630 | { | |
631 | bpstat bs = stop_bpstat; | |
8671a17b PA |
632 | int num, stat; |
633 | int stopped = 0; | |
634 | ||
635 | while ((stat = bpstat_num (&bs, &num)) != 0) | |
636 | if (stat > 0) | |
637 | { | |
638 | set_ignore_count (num, | |
639 | parse_and_eval_long (proc_count_exp) - 1, | |
640 | from_tty); | |
641 | /* set_ignore_count prints a message ending with a period. | |
642 | So print two spaces before "Continuing.". */ | |
643 | if (from_tty) | |
644 | printf_filtered (" "); | |
645 | stopped = 1; | |
646 | } | |
647 | ||
648 | if (!stopped && from_tty) | |
c906108c SS |
649 | { |
650 | printf_filtered | |
651 | ("Not stopped at any breakpoint; argument ignored.\n"); | |
652 | } | |
c906108c SS |
653 | } |
654 | ||
655 | if (from_tty) | |
a3f17187 | 656 | printf_filtered (_("Continuing.\n")); |
c906108c SS |
657 | |
658 | clear_proceed_status (); | |
659 | ||
2acceee2 | 660 | proceed ((CORE_ADDR) -1, TARGET_SIGNAL_DEFAULT, 0); |
c906108c SS |
661 | } |
662 | \f | |
663 | /* Step until outside of current statement. */ | |
664 | ||
c906108c | 665 | static void |
fba45db2 | 666 | step_command (char *count_string, int from_tty) |
c906108c SS |
667 | { |
668 | step_1 (0, 0, count_string); | |
669 | } | |
670 | ||
671 | /* Likewise, but skip over subroutine calls as if single instructions. */ | |
672 | ||
c906108c | 673 | static void |
fba45db2 | 674 | next_command (char *count_string, int from_tty) |
c906108c SS |
675 | { |
676 | step_1 (1, 0, count_string); | |
677 | } | |
678 | ||
679 | /* Likewise, but step only one instruction. */ | |
680 | ||
c906108c | 681 | void |
fba45db2 | 682 | stepi_command (char *count_string, int from_tty) |
c906108c SS |
683 | { |
684 | step_1 (0, 1, count_string); | |
685 | } | |
686 | ||
c906108c | 687 | void |
fba45db2 | 688 | nexti_command (char *count_string, int from_tty) |
c906108c SS |
689 | { |
690 | step_1 (1, 1, count_string); | |
691 | } | |
692 | ||
74b7792f AC |
693 | static void |
694 | disable_longjmp_breakpoint_cleanup (void *ignore) | |
695 | { | |
696 | disable_longjmp_breakpoint (); | |
697 | } | |
698 | ||
c906108c | 699 | static void |
fba45db2 | 700 | step_1 (int skip_subroutines, int single_inst, char *count_string) |
c906108c | 701 | { |
52f0bd74 | 702 | int count = 1; |
c906108c SS |
703 | struct frame_info *frame; |
704 | struct cleanup *cleanups = 0; | |
43ff13b4 | 705 | int async_exec = 0; |
c5aa993b | 706 | |
c906108c | 707 | ERROR_NO_INFERIOR; |
43ff13b4 JM |
708 | |
709 | if (count_string) | |
710 | async_exec = strip_bg_char (&count_string); | |
c5aa993b | 711 | |
43ff13b4 JM |
712 | /* If we get a request for running in the bg but the target |
713 | doesn't support it, error out. */ | |
362646f5 | 714 | if (async_exec && !target_can_async_p ()) |
8a3fe4f8 | 715 | error (_("Asynchronous execution not supported on this target.")); |
43ff13b4 JM |
716 | |
717 | /* If we don't get a request of running in the bg, then we need | |
718 | to simulate synchronous (fg) execution. */ | |
362646f5 | 719 | if (!async_exec && target_can_async_p ()) |
43ff13b4 JM |
720 | { |
721 | /* Simulate synchronous execution */ | |
6426a772 | 722 | async_disable_stdin (); |
43ff13b4 JM |
723 | } |
724 | ||
bb518678 | 725 | count = count_string ? parse_and_eval_long (count_string) : 1; |
c906108c | 726 | |
c5aa993b | 727 | if (!single_inst || skip_subroutines) /* leave si command alone */ |
c906108c | 728 | { |
c5aa993b | 729 | enable_longjmp_breakpoint (); |
362646f5 | 730 | if (!target_can_async_p ()) |
74b7792f | 731 | cleanups = make_cleanup (disable_longjmp_breakpoint_cleanup, 0 /*ignore*/); |
c2d11a7d | 732 | else |
74b7792f | 733 | make_exec_cleanup (disable_longjmp_breakpoint_cleanup, 0 /*ignore*/); |
c2d11a7d JM |
734 | } |
735 | ||
736 | /* In synchronous case, all is well, just use the regular for loop. */ | |
362646f5 | 737 | if (!target_can_async_p ()) |
c2d11a7d JM |
738 | { |
739 | for (; count > 0; count--) | |
740 | { | |
741 | clear_proceed_status (); | |
742 | ||
743 | frame = get_current_frame (); | |
744 | if (!frame) /* Avoid coredump here. Why tho? */ | |
8a3fe4f8 | 745 | error (_("No current frame")); |
aa0cd9c1 | 746 | step_frame_id = get_frame_id (frame); |
c2d11a7d JM |
747 | |
748 | if (!single_inst) | |
749 | { | |
750 | find_pc_line_pc_range (stop_pc, &step_range_start, &step_range_end); | |
751 | if (step_range_end == 0) | |
752 | { | |
753 | char *name; | |
754 | if (find_pc_partial_function (stop_pc, &name, &step_range_start, | |
755 | &step_range_end) == 0) | |
8a3fe4f8 | 756 | error (_("Cannot find bounds of current function")); |
c2d11a7d JM |
757 | |
758 | target_terminal_ours (); | |
a3f17187 | 759 | printf_filtered (_("\ |
c2d11a7d | 760 | Single stepping until exit from function %s, \n\ |
a3f17187 | 761 | which has no line number information.\n"), name); |
c2d11a7d JM |
762 | } |
763 | } | |
764 | else | |
765 | { | |
766 | /* Say we are stepping, but stop after one insn whatever it does. */ | |
767 | step_range_start = step_range_end = 1; | |
768 | if (!skip_subroutines) | |
769 | /* It is stepi. | |
770 | Don't step over function calls, not even to functions lacking | |
771 | line numbers. */ | |
5fbbeb29 | 772 | step_over_calls = STEP_OVER_NONE; |
c2d11a7d JM |
773 | } |
774 | ||
775 | if (skip_subroutines) | |
5fbbeb29 | 776 | step_over_calls = STEP_OVER_ALL; |
c2d11a7d JM |
777 | |
778 | step_multi = (count > 1); | |
779 | proceed ((CORE_ADDR) -1, TARGET_SIGNAL_DEFAULT, 1); | |
780 | ||
781 | if (!stop_step) | |
782 | break; | |
c2d11a7d JM |
783 | } |
784 | ||
785 | if (!single_inst || skip_subroutines) | |
786 | do_cleanups (cleanups); | |
787 | return; | |
788 | } | |
789 | /* In case of asynchronous target things get complicated, do only | |
790 | one step for now, before returning control to the event loop. Let | |
791 | the continuation figure out how many other steps we need to do, | |
792 | and handle them one at the time, through step_once(). */ | |
793 | else | |
794 | { | |
362646f5 | 795 | if (target_can_async_p ()) |
c2d11a7d | 796 | step_once (skip_subroutines, single_inst, count); |
c906108c | 797 | } |
c2d11a7d | 798 | } |
c906108c | 799 | |
c2d11a7d JM |
800 | /* Called after we are done with one step operation, to check whether |
801 | we need to step again, before we print the prompt and return control | |
802 | to the user. If count is > 1, we will need to do one more call to | |
803 | proceed(), via step_once(). Basically it is like step_once and | |
804 | step_1_continuation are co-recursive. */ | |
805 | static void | |
fba45db2 | 806 | step_1_continuation (struct continuation_arg *arg) |
c2d11a7d | 807 | { |
57e687d9 MS |
808 | int count; |
809 | int skip_subroutines; | |
810 | int single_inst; | |
811 | ||
812 | skip_subroutines = arg->data.integer; | |
813 | single_inst = arg->next->data.integer; | |
814 | count = arg->next->next->data.integer; | |
815 | ||
816 | if (stop_step) | |
e74f0f02 | 817 | step_once (skip_subroutines, single_inst, count - 1); |
57e687d9 MS |
818 | else |
819 | if (!single_inst || skip_subroutines) | |
820 | do_exec_cleanups (ALL_CLEANUPS); | |
c2d11a7d JM |
821 | } |
822 | ||
823 | /* Do just one step operation. If count >1 we will have to set up a | |
824 | continuation to be done after the target stops (after this one | |
825 | step). This is useful to implement the 'step n' kind of commands, in | |
826 | case of asynchronous targets. We had to split step_1 into two parts, | |
827 | one to be done before proceed() and one afterwards. This function is | |
828 | called in case of step n with n>1, after the first step operation has | |
829 | been completed.*/ | |
830 | static void | |
0d06e24b | 831 | step_once (int skip_subroutines, int single_inst, int count) |
c2d11a7d | 832 | { |
0d06e24b JM |
833 | struct continuation_arg *arg1; |
834 | struct continuation_arg *arg2; | |
835 | struct continuation_arg *arg3; | |
836 | struct frame_info *frame; | |
c2d11a7d JM |
837 | |
838 | if (count > 0) | |
c906108c SS |
839 | { |
840 | clear_proceed_status (); | |
841 | ||
842 | frame = get_current_frame (); | |
c5aa993b | 843 | if (!frame) /* Avoid coredump here. Why tho? */ |
8a3fe4f8 | 844 | error (_("No current frame")); |
aa0cd9c1 | 845 | step_frame_id = get_frame_id (frame); |
c906108c | 846 | |
c5aa993b | 847 | if (!single_inst) |
c906108c SS |
848 | { |
849 | find_pc_line_pc_range (stop_pc, &step_range_start, &step_range_end); | |
5fbbeb29 CF |
850 | |
851 | /* If we have no line info, switch to stepi mode. */ | |
852 | if (step_range_end == 0 && step_stop_if_no_debug) | |
853 | { | |
854 | step_range_start = step_range_end = 1; | |
855 | } | |
856 | else if (step_range_end == 0) | |
c906108c SS |
857 | { |
858 | char *name; | |
859 | if (find_pc_partial_function (stop_pc, &name, &step_range_start, | |
860 | &step_range_end) == 0) | |
8a3fe4f8 | 861 | error (_("Cannot find bounds of current function")); |
c906108c SS |
862 | |
863 | target_terminal_ours (); | |
a3f17187 | 864 | printf_filtered (_("\ |
c906108c | 865 | Single stepping until exit from function %s, \n\ |
a3f17187 | 866 | which has no line number information.\n"), name); |
c906108c SS |
867 | } |
868 | } | |
869 | else | |
870 | { | |
871 | /* Say we are stepping, but stop after one insn whatever it does. */ | |
872 | step_range_start = step_range_end = 1; | |
873 | if (!skip_subroutines) | |
874 | /* It is stepi. | |
875 | Don't step over function calls, not even to functions lacking | |
876 | line numbers. */ | |
5fbbeb29 | 877 | step_over_calls = STEP_OVER_NONE; |
c906108c SS |
878 | } |
879 | ||
880 | if (skip_subroutines) | |
5fbbeb29 | 881 | step_over_calls = STEP_OVER_ALL; |
c906108c SS |
882 | |
883 | step_multi = (count > 1); | |
c2d11a7d JM |
884 | arg1 = |
885 | (struct continuation_arg *) xmalloc (sizeof (struct continuation_arg)); | |
886 | arg2 = | |
887 | (struct continuation_arg *) xmalloc (sizeof (struct continuation_arg)); | |
888 | arg3 = | |
889 | (struct continuation_arg *) xmalloc (sizeof (struct continuation_arg)); | |
890 | arg1->next = arg2; | |
57e687d9 | 891 | arg1->data.integer = skip_subroutines; |
c2d11a7d | 892 | arg2->next = arg3; |
57e687d9 | 893 | arg2->data.integer = single_inst; |
c2d11a7d | 894 | arg3->next = NULL; |
57e687d9 | 895 | arg3->data.integer = count; |
c2d11a7d | 896 | add_intermediate_continuation (step_1_continuation, arg1); |
2acceee2 | 897 | proceed ((CORE_ADDR) -1, TARGET_SIGNAL_DEFAULT, 1); |
c906108c | 898 | } |
c906108c | 899 | } |
c2d11a7d | 900 | |
c906108c SS |
901 | \f |
902 | /* Continue program at specified address. */ | |
903 | ||
904 | static void | |
fba45db2 | 905 | jump_command (char *arg, int from_tty) |
c906108c | 906 | { |
52f0bd74 | 907 | CORE_ADDR addr; |
c906108c SS |
908 | struct symtabs_and_lines sals; |
909 | struct symtab_and_line sal; | |
910 | struct symbol *fn; | |
911 | struct symbol *sfn; | |
43ff13b4 | 912 | int async_exec = 0; |
c5aa993b | 913 | |
c906108c SS |
914 | ERROR_NO_INFERIOR; |
915 | ||
43ff13b4 JM |
916 | /* Find out whether we must run in the background. */ |
917 | if (arg != NULL) | |
918 | async_exec = strip_bg_char (&arg); | |
919 | ||
920 | /* If we must run in the background, but the target can't do it, | |
921 | error out. */ | |
362646f5 | 922 | if (async_exec && !target_can_async_p ()) |
8a3fe4f8 | 923 | error (_("Asynchronous execution not supported on this target.")); |
43ff13b4 | 924 | |
c906108c | 925 | if (!arg) |
e2e0b3e5 | 926 | error_no_arg (_("starting address")); |
c906108c SS |
927 | |
928 | sals = decode_line_spec_1 (arg, 1); | |
929 | if (sals.nelts != 1) | |
930 | { | |
8a3fe4f8 | 931 | error (_("Unreasonable jump request")); |
c906108c SS |
932 | } |
933 | ||
934 | sal = sals.sals[0]; | |
b8c9b27d | 935 | xfree (sals.sals); |
c906108c SS |
936 | |
937 | if (sal.symtab == 0 && sal.pc == 0) | |
8a3fe4f8 | 938 | error (_("No source file has been specified.")); |
c906108c | 939 | |
c5aa993b | 940 | resolve_sal_pc (&sal); /* May error out */ |
c906108c SS |
941 | |
942 | /* See if we are trying to jump to another function. */ | |
943 | fn = get_frame_function (get_current_frame ()); | |
944 | sfn = find_pc_function (sal.pc); | |
945 | if (fn != NULL && sfn != fn) | |
946 | { | |
947 | if (!query ("Line %d is not in `%s'. Jump anyway? ", sal.line, | |
de5ad195 | 948 | SYMBOL_PRINT_NAME (fn))) |
c906108c | 949 | { |
8a3fe4f8 | 950 | error (_("Not confirmed.")); |
c906108c SS |
951 | /* NOTREACHED */ |
952 | } | |
953 | } | |
954 | ||
c5aa993b | 955 | if (sfn != NULL) |
c906108c SS |
956 | { |
957 | fixup_symbol_section (sfn, 0); | |
c5aa993b | 958 | if (section_is_overlay (SYMBOL_BFD_SECTION (sfn)) && |
c906108c SS |
959 | !section_is_mapped (SYMBOL_BFD_SECTION (sfn))) |
960 | { | |
961 | if (!query ("WARNING!!! Destination is in unmapped overlay! Jump anyway? ")) | |
962 | { | |
8a3fe4f8 | 963 | error (_("Not confirmed.")); |
c906108c SS |
964 | /* NOTREACHED */ |
965 | } | |
966 | } | |
967 | } | |
968 | ||
c906108c SS |
969 | addr = sal.pc; |
970 | ||
971 | if (from_tty) | |
972 | { | |
a3f17187 | 973 | printf_filtered (_("Continuing at ")); |
ed49a04f | 974 | fputs_filtered (paddress (addr), gdb_stdout); |
c906108c SS |
975 | printf_filtered (".\n"); |
976 | } | |
977 | ||
89113898 PA |
978 | /* If we are not asked to run in the bg, then prepare to run in the |
979 | foreground, synchronously. */ | |
980 | if (!async_exec && target_can_async_p ()) | |
981 | { | |
982 | /* Simulate synchronous execution */ | |
983 | async_disable_stdin (); | |
984 | } | |
985 | ||
c906108c SS |
986 | clear_proceed_status (); |
987 | proceed (addr, TARGET_SIGNAL_0, 0); | |
988 | } | |
c906108c | 989 | \f |
c5aa993b | 990 | |
c906108c SS |
991 | /* Go to line or address in current procedure */ |
992 | static void | |
fba45db2 | 993 | go_command (char *line_no, int from_tty) |
c906108c | 994 | { |
c5aa993b | 995 | if (line_no == (char *) NULL || !*line_no) |
b83266a0 | 996 | printf_filtered (GO_USAGE); |
c906108c SS |
997 | else |
998 | { | |
b83266a0 SS |
999 | tbreak_command (line_no, from_tty); |
1000 | jump_command (line_no, from_tty); | |
c906108c SS |
1001 | } |
1002 | } | |
c906108c | 1003 | \f |
c5aa993b | 1004 | |
c906108c SS |
1005 | /* Continue program giving it specified signal. */ |
1006 | ||
1007 | static void | |
fba45db2 | 1008 | signal_command (char *signum_exp, int from_tty) |
c906108c SS |
1009 | { |
1010 | enum target_signal oursig; | |
32c1e744 | 1011 | int async_exec = 0; |
c906108c SS |
1012 | |
1013 | dont_repeat (); /* Too dangerous. */ | |
1014 | ERROR_NO_INFERIOR; | |
1015 | ||
32c1e744 VP |
1016 | /* Find out whether we must run in the background. */ |
1017 | if (signum_exp != NULL) | |
1018 | async_exec = strip_bg_char (&signum_exp); | |
1019 | ||
1020 | /* If we must run in the background, but the target can't do it, | |
1021 | error out. */ | |
1022 | if (async_exec && !target_can_async_p ()) | |
1023 | error (_("Asynchronous execution not supported on this target.")); | |
1024 | ||
1025 | /* If we are not asked to run in the bg, then prepare to run in the | |
1026 | foreground, synchronously. */ | |
1027 | if (!async_exec && target_can_async_p ()) | |
1028 | { | |
1029 | /* Simulate synchronous execution. */ | |
1030 | async_disable_stdin (); | |
1031 | } | |
1032 | ||
c906108c | 1033 | if (!signum_exp) |
e2e0b3e5 | 1034 | error_no_arg (_("signal number")); |
c906108c SS |
1035 | |
1036 | /* It would be even slicker to make signal names be valid expressions, | |
1037 | (the type could be "enum $signal" or some such), then the user could | |
1038 | assign them to convenience variables. */ | |
1039 | oursig = target_signal_from_name (signum_exp); | |
1040 | ||
1041 | if (oursig == TARGET_SIGNAL_UNKNOWN) | |
1042 | { | |
1043 | /* No, try numeric. */ | |
bb518678 | 1044 | int num = parse_and_eval_long (signum_exp); |
c906108c SS |
1045 | |
1046 | if (num == 0) | |
1047 | oursig = TARGET_SIGNAL_0; | |
1048 | else | |
1049 | oursig = target_signal_from_command (num); | |
1050 | } | |
1051 | ||
1052 | if (from_tty) | |
1053 | { | |
1054 | if (oursig == TARGET_SIGNAL_0) | |
a3f17187 | 1055 | printf_filtered (_("Continuing with no signal.\n")); |
c906108c | 1056 | else |
a3f17187 | 1057 | printf_filtered (_("Continuing with signal %s.\n"), |
c906108c SS |
1058 | target_signal_to_name (oursig)); |
1059 | } | |
1060 | ||
1061 | clear_proceed_status (); | |
1062 | /* "signal 0" should not get stuck if we are stopped at a breakpoint. | |
1063 | FIXME: Neither should "signal foo" but when I tried passing | |
1064 | (CORE_ADDR)-1 unconditionally I got a testsuite failure which I haven't | |
1065 | tried to track down yet. */ | |
2acceee2 | 1066 | proceed (oursig == TARGET_SIGNAL_0 ? (CORE_ADDR) -1 : stop_pc, oursig, 0); |
c906108c SS |
1067 | } |
1068 | ||
c906108c SS |
1069 | /* Proceed until we reach a different source line with pc greater than |
1070 | our current one or exit the function. We skip calls in both cases. | |
1071 | ||
1072 | Note that eventually this command should probably be changed so | |
1073 | that only source lines are printed out when we hit the breakpoint | |
1074 | we set. This may involve changes to wait_for_inferior and the | |
1075 | proceed status code. */ | |
1076 | ||
c906108c | 1077 | static void |
fba45db2 | 1078 | until_next_command (int from_tty) |
c906108c SS |
1079 | { |
1080 | struct frame_info *frame; | |
1081 | CORE_ADDR pc; | |
1082 | struct symbol *func; | |
1083 | struct symtab_and_line sal; | |
c5aa993b | 1084 | |
c906108c SS |
1085 | clear_proceed_status (); |
1086 | ||
1087 | frame = get_current_frame (); | |
1088 | ||
1089 | /* Step until either exited from this function or greater | |
1090 | than the current line (if in symbolic section) or pc (if | |
1091 | not). */ | |
1092 | ||
1093 | pc = read_pc (); | |
1094 | func = find_pc_function (pc); | |
c5aa993b | 1095 | |
c906108c SS |
1096 | if (!func) |
1097 | { | |
1098 | struct minimal_symbol *msymbol = lookup_minimal_symbol_by_pc (pc); | |
c5aa993b | 1099 | |
c906108c | 1100 | if (msymbol == NULL) |
8a3fe4f8 | 1101 | error (_("Execution is not within a known function.")); |
c5aa993b | 1102 | |
c906108c SS |
1103 | step_range_start = SYMBOL_VALUE_ADDRESS (msymbol); |
1104 | step_range_end = pc; | |
1105 | } | |
1106 | else | |
1107 | { | |
1108 | sal = find_pc_line (pc, 0); | |
c5aa993b | 1109 | |
c906108c SS |
1110 | step_range_start = BLOCK_START (SYMBOL_BLOCK_VALUE (func)); |
1111 | step_range_end = sal.end; | |
1112 | } | |
c5aa993b | 1113 | |
5fbbeb29 | 1114 | step_over_calls = STEP_OVER_ALL; |
aa0cd9c1 | 1115 | step_frame_id = get_frame_id (frame); |
c906108c SS |
1116 | |
1117 | step_multi = 0; /* Only one call to proceed */ | |
c5aa993b | 1118 | |
2acceee2 | 1119 | proceed ((CORE_ADDR) -1, TARGET_SIGNAL_DEFAULT, 1); |
c906108c SS |
1120 | } |
1121 | ||
c5aa993b | 1122 | static void |
fba45db2 | 1123 | until_command (char *arg, int from_tty) |
c906108c | 1124 | { |
43ff13b4 JM |
1125 | int async_exec = 0; |
1126 | ||
c906108c | 1127 | if (!target_has_execution) |
8a3fe4f8 | 1128 | error (_("The program is not running.")); |
43ff13b4 JM |
1129 | |
1130 | /* Find out whether we must run in the background. */ | |
1131 | if (arg != NULL) | |
1132 | async_exec = strip_bg_char (&arg); | |
1133 | ||
1134 | /* If we must run in the background, but the target can't do it, | |
1135 | error out. */ | |
362646f5 | 1136 | if (async_exec && !target_can_async_p ()) |
8a3fe4f8 | 1137 | error (_("Asynchronous execution not supported on this target.")); |
43ff13b4 JM |
1138 | |
1139 | /* If we are not asked to run in the bg, then prepare to run in the | |
1140 | foreground, synchronously. */ | |
362646f5 | 1141 | if (!async_exec && target_can_async_p ()) |
c5aa993b | 1142 | { |
43ff13b4 | 1143 | /* Simulate synchronous execution */ |
6426a772 | 1144 | async_disable_stdin (); |
43ff13b4 JM |
1145 | } |
1146 | ||
c906108c | 1147 | if (arg) |
ae66c1fc | 1148 | until_break_command (arg, from_tty, 0); |
c906108c SS |
1149 | else |
1150 | until_next_command (from_tty); | |
1151 | } | |
ae66c1fc EZ |
1152 | |
1153 | static void | |
1154 | advance_command (char *arg, int from_tty) | |
1155 | { | |
1156 | int async_exec = 0; | |
1157 | ||
1158 | if (!target_has_execution) | |
8a3fe4f8 | 1159 | error (_("The program is not running.")); |
ae66c1fc EZ |
1160 | |
1161 | if (arg == NULL) | |
e2e0b3e5 | 1162 | error_no_arg (_("a location")); |
ae66c1fc EZ |
1163 | |
1164 | /* Find out whether we must run in the background. */ | |
1165 | if (arg != NULL) | |
1166 | async_exec = strip_bg_char (&arg); | |
1167 | ||
1168 | /* If we must run in the background, but the target can't do it, | |
1169 | error out. */ | |
362646f5 | 1170 | if (async_exec && !target_can_async_p ()) |
8a3fe4f8 | 1171 | error (_("Asynchronous execution not supported on this target.")); |
ae66c1fc EZ |
1172 | |
1173 | /* If we are not asked to run in the bg, then prepare to run in the | |
1174 | foreground, synchronously. */ | |
362646f5 | 1175 | if (!async_exec && target_can_async_p ()) |
ae66c1fc EZ |
1176 | { |
1177 | /* Simulate synchronous execution. */ | |
1178 | async_disable_stdin (); | |
1179 | } | |
1180 | ||
1181 | until_break_command (arg, from_tty, 1); | |
1182 | } | |
c906108c | 1183 | \f |
f941662f MK |
1184 | /* Print the result of a function at the end of a 'finish' command. */ |
1185 | ||
11cf8741 | 1186 | static void |
c055b101 | 1187 | print_return_value (struct type *func_type, struct type *value_type) |
11cf8741 | 1188 | { |
31db7b6c | 1189 | struct gdbarch *gdbarch = current_gdbarch; |
bb472c1e MK |
1190 | struct cleanup *old_chain; |
1191 | struct ui_stream *stb; | |
44e5158b AC |
1192 | struct value *value; |
1193 | ||
181fc57c | 1194 | CHECK_TYPEDEF (value_type); |
44e5158b | 1195 | gdb_assert (TYPE_CODE (value_type) != TYPE_CODE_VOID); |
11cf8741 | 1196 | |
92ad9cd9 AC |
1197 | /* FIXME: 2003-09-27: When returning from a nested inferior function |
1198 | call, it's possible (with no help from the architecture vector) | |
1199 | to locate and return/print a "struct return" value. This is just | |
1200 | a more complicated case of what is already being done in in the | |
1201 | inferior function call code. In fact, when inferior function | |
1202 | calls are made async, this will likely be made the norm. */ | |
31db7b6c | 1203 | |
c055b101 CV |
1204 | switch (gdbarch_return_value (gdbarch, func_type, value_type, |
1205 | NULL, NULL, NULL)) | |
44e5158b | 1206 | { |
750eb019 AC |
1207 | case RETURN_VALUE_REGISTER_CONVENTION: |
1208 | case RETURN_VALUE_ABI_RETURNS_ADDRESS: | |
181fc57c | 1209 | case RETURN_VALUE_ABI_PRESERVES_ADDRESS: |
44e5158b | 1210 | value = allocate_value (value_type); |
c055b101 | 1211 | gdbarch_return_value (gdbarch, func_type, value_type, stop_registers, |
990a07ab | 1212 | value_contents_raw (value), NULL); |
750eb019 AC |
1213 | break; |
1214 | case RETURN_VALUE_STRUCT_CONVENTION: | |
1215 | value = NULL; | |
1216 | break; | |
1217 | default: | |
e2e0b3e5 | 1218 | internal_error (__FILE__, __LINE__, _("bad switch")); |
44e5158b | 1219 | } |
bb472c1e | 1220 | |
31db7b6c MK |
1221 | if (value) |
1222 | { | |
1223 | /* Print it. */ | |
1d751abe PA |
1224 | stb = ui_out_stream_new (uiout); |
1225 | old_chain = make_cleanup_ui_out_stream_delete (stb); | |
31db7b6c MK |
1226 | ui_out_text (uiout, "Value returned is "); |
1227 | ui_out_field_fmt (uiout, "gdb-result-var", "$%d", | |
1228 | record_latest_value (value)); | |
1229 | ui_out_text (uiout, " = "); | |
1230 | value_print (value, stb->stream, 0, Val_no_prettyprint); | |
1231 | ui_out_field_stream (uiout, "return-value", stb); | |
1232 | ui_out_text (uiout, "\n"); | |
1d751abe | 1233 | do_cleanups (old_chain); |
31db7b6c MK |
1234 | } |
1235 | else | |
1236 | { | |
1237 | ui_out_text (uiout, "Value returned has type: "); | |
1d751abe PA |
1238 | ui_out_field_string (uiout, "return-type", TYPE_NAME (value_type)); |
1239 | ui_out_text (uiout, "."); | |
1240 | ui_out_text (uiout, " Cannot determine contents\n"); | |
31db7b6c | 1241 | } |
11cf8741 JM |
1242 | } |
1243 | ||
43ff13b4 | 1244 | /* Stuff that needs to be done by the finish command after the target |
f941662f MK |
1245 | has stopped. In asynchronous mode, we wait for the target to stop |
1246 | in the call to poll or select in the event loop, so it is | |
1247 | impossible to do all the stuff as part of the finish_command | |
1248 | function itself. The only chance we have to complete this command | |
1249 | is in fetch_inferior_event, which is called by the event loop as | |
1250 | soon as it detects that the target has stopped. This function is | |
1251 | called via the cmd_continuation pointer. */ | |
1252 | ||
1253 | static void | |
fba45db2 | 1254 | finish_command_continuation (struct continuation_arg *arg) |
43ff13b4 | 1255 | { |
52f0bd74 | 1256 | struct symbol *function; |
43ff13b4 | 1257 | struct breakpoint *breakpoint; |
0d06e24b | 1258 | struct cleanup *cleanups; |
c5aa993b | 1259 | |
57e687d9 | 1260 | breakpoint = (struct breakpoint *) arg->data.pointer; |
f941662f MK |
1261 | function = (struct symbol *) arg->next->data.pointer; |
1262 | cleanups = (struct cleanup *) arg->next->next->data.pointer; | |
43ff13b4 | 1263 | |
c5aa993b | 1264 | if (bpstat_find_breakpoint (stop_bpstat, breakpoint) != NULL |
f941662f | 1265 | && function != NULL) |
43ff13b4 JM |
1266 | { |
1267 | struct type *value_type; | |
43ff13b4 JM |
1268 | |
1269 | value_type = TYPE_TARGET_TYPE (SYMBOL_TYPE (function)); | |
1270 | if (!value_type) | |
8e65ff28 | 1271 | internal_error (__FILE__, __LINE__, |
e2e0b3e5 | 1272 | _("finish_command: function has no target type")); |
c5aa993b | 1273 | |
8f536afe | 1274 | if (TYPE_CODE (value_type) != TYPE_CODE_VOID) |
c055b101 | 1275 | print_return_value (SYMBOL_TYPE (function), value_type); |
43ff13b4 | 1276 | } |
f941662f | 1277 | |
0d06e24b | 1278 | do_exec_cleanups (cleanups); |
43ff13b4 JM |
1279 | } |
1280 | ||
f941662f MK |
1281 | /* "finish": Set a temporary breakpoint at the place the selected |
1282 | frame will return to, then continue. */ | |
c906108c SS |
1283 | |
1284 | static void | |
fba45db2 | 1285 | finish_command (char *arg, int from_tty) |
c906108c SS |
1286 | { |
1287 | struct symtab_and_line sal; | |
52f0bd74 AC |
1288 | struct frame_info *frame; |
1289 | struct symbol *function; | |
c906108c SS |
1290 | struct breakpoint *breakpoint; |
1291 | struct cleanup *old_chain; | |
0d06e24b | 1292 | struct continuation_arg *arg1, *arg2, *arg3; |
43ff13b4 JM |
1293 | |
1294 | int async_exec = 0; | |
1295 | ||
f941662f | 1296 | /* Find out whether we must run in the background. */ |
43ff13b4 JM |
1297 | if (arg != NULL) |
1298 | async_exec = strip_bg_char (&arg); | |
1299 | ||
1300 | /* If we must run in the background, but the target can't do it, | |
f941662f | 1301 | error out. */ |
362646f5 | 1302 | if (async_exec && !target_can_async_p ()) |
8a3fe4f8 | 1303 | error (_("Asynchronous execution not supported on this target.")); |
43ff13b4 JM |
1304 | |
1305 | /* If we are not asked to run in the bg, then prepare to run in the | |
f941662f | 1306 | foreground, synchronously. */ |
362646f5 | 1307 | if (!async_exec && target_can_async_p ()) |
c5aa993b | 1308 | { |
f941662f | 1309 | /* Simulate synchronous execution. */ |
6426a772 | 1310 | async_disable_stdin (); |
43ff13b4 | 1311 | } |
c906108c SS |
1312 | |
1313 | if (arg) | |
8a3fe4f8 | 1314 | error (_("The \"finish\" command does not take any arguments.")); |
c906108c | 1315 | if (!target_has_execution) |
8a3fe4f8 | 1316 | error (_("The program is not running.")); |
c906108c | 1317 | |
206415a3 | 1318 | frame = get_prev_frame (get_selected_frame (_("No selected frame."))); |
c906108c | 1319 | if (frame == 0) |
8a3fe4f8 | 1320 | error (_("\"finish\" not meaningful in the outermost frame.")); |
c906108c SS |
1321 | |
1322 | clear_proceed_status (); | |
1323 | ||
bdd78e62 AC |
1324 | sal = find_pc_line (get_frame_pc (frame), 0); |
1325 | sal.pc = get_frame_pc (frame); | |
c906108c | 1326 | |
818dd999 | 1327 | breakpoint = set_momentary_breakpoint (sal, get_frame_id (frame), bp_finish); |
c906108c | 1328 | |
362646f5 | 1329 | if (!target_can_async_p ()) |
4d6140d9 | 1330 | old_chain = make_cleanup_delete_breakpoint (breakpoint); |
43ff13b4 | 1331 | else |
4d6140d9 | 1332 | old_chain = make_exec_cleanup_delete_breakpoint (breakpoint); |
c906108c SS |
1333 | |
1334 | /* Find the function we will return from. */ | |
1335 | ||
206415a3 | 1336 | function = find_pc_function (get_frame_pc (get_selected_frame (NULL))); |
c906108c | 1337 | |
f941662f MK |
1338 | /* Print info on the selected frame, including level number but not |
1339 | source. */ | |
c906108c SS |
1340 | if (from_tty) |
1341 | { | |
a3f17187 | 1342 | printf_filtered (_("Run till exit from ")); |
b04f3ab4 | 1343 | print_stack_frame (get_selected_frame (NULL), 1, LOCATION); |
c906108c SS |
1344 | } |
1345 | ||
32c1e744 VP |
1346 | proceed_to_finish = 1; /* We want stop_registers, please... */ |
1347 | proceed ((CORE_ADDR) -1, TARGET_SIGNAL_DEFAULT, 0); | |
1348 | ||
43ff13b4 JM |
1349 | /* If running asynchronously and the target support asynchronous |
1350 | execution, set things up for the rest of the finish command to be | |
1351 | completed later on, when gdb has detected that the target has | |
32c1e744 VP |
1352 | stopped, in fetch_inferior_event. |
1353 | Setup it only after proceed, so that if proceed throws, we don't | |
1354 | set continuation. */ | |
362646f5 | 1355 | if (target_can_async_p ()) |
43ff13b4 | 1356 | { |
c5aa993b | 1357 | arg1 = |
43ff13b4 | 1358 | (struct continuation_arg *) xmalloc (sizeof (struct continuation_arg)); |
c5aa993b | 1359 | arg2 = |
43ff13b4 | 1360 | (struct continuation_arg *) xmalloc (sizeof (struct continuation_arg)); |
0d06e24b JM |
1361 | arg3 = |
1362 | (struct continuation_arg *) xmalloc (sizeof (struct continuation_arg)); | |
43ff13b4 | 1363 | arg1->next = arg2; |
0d06e24b JM |
1364 | arg2->next = arg3; |
1365 | arg3->next = NULL; | |
57e687d9 MS |
1366 | arg1->data.pointer = breakpoint; |
1367 | arg2->data.pointer = function; | |
1368 | arg3->data.pointer = old_chain; | |
43ff13b4 JM |
1369 | add_continuation (finish_command_continuation, arg1); |
1370 | } | |
1371 | ||
43ff13b4 | 1372 | /* Do this only if not running asynchronously or if the target |
f941662f MK |
1373 | cannot do async execution. Otherwise, complete this command when |
1374 | the target actually stops, in fetch_inferior_event. */ | |
362646f5 | 1375 | if (!target_can_async_p ()) |
c5aa993b | 1376 | { |
f941662f | 1377 | /* Did we stop at our breakpoint? */ |
c5aa993b | 1378 | if (bpstat_find_breakpoint (stop_bpstat, breakpoint) != NULL |
f941662f | 1379 | && function != NULL) |
c5aa993b JM |
1380 | { |
1381 | struct type *value_type; | |
c5aa993b JM |
1382 | |
1383 | value_type = TYPE_TARGET_TYPE (SYMBOL_TYPE (function)); | |
1384 | if (!value_type) | |
8e65ff28 | 1385 | internal_error (__FILE__, __LINE__, |
e2e0b3e5 | 1386 | _("finish_command: function has no target type")); |
c5aa993b | 1387 | |
8f536afe | 1388 | if (TYPE_CODE (value_type) != TYPE_CODE_VOID) |
c055b101 | 1389 | print_return_value (SYMBOL_TYPE (function), value_type); |
c5aa993b | 1390 | } |
f941662f | 1391 | |
c5aa993b JM |
1392 | do_cleanups (old_chain); |
1393 | } | |
c906108c SS |
1394 | } |
1395 | \f | |
f941662f | 1396 | |
c906108c | 1397 | static void |
fba45db2 | 1398 | program_info (char *args, int from_tty) |
c906108c SS |
1399 | { |
1400 | bpstat bs = stop_bpstat; | |
8671a17b PA |
1401 | int num; |
1402 | int stat = bpstat_num (&bs, &num); | |
c5aa993b | 1403 | |
c906108c SS |
1404 | if (!target_has_execution) |
1405 | { | |
a3f17187 | 1406 | printf_filtered (_("The program being debugged is not being run.\n")); |
c906108c SS |
1407 | return; |
1408 | } | |
1409 | ||
1410 | target_files_info (); | |
a3f17187 | 1411 | printf_filtered (_("Program stopped at %s.\n"), |
bb599908 | 1412 | hex_string ((unsigned long) stop_pc)); |
c906108c | 1413 | if (stop_step) |
a3f17187 | 1414 | printf_filtered (_("It stopped after being stepped.\n")); |
8671a17b | 1415 | else if (stat != 0) |
c906108c SS |
1416 | { |
1417 | /* There may be several breakpoints in the same place, so this | |
c5aa993b | 1418 | isn't as strange as it seems. */ |
8671a17b | 1419 | while (stat != 0) |
c906108c | 1420 | { |
8671a17b | 1421 | if (stat < 0) |
c906108c | 1422 | { |
a3f17187 AC |
1423 | printf_filtered (_("\ |
1424 | It stopped at a breakpoint that has since been deleted.\n")); | |
c906108c SS |
1425 | } |
1426 | else | |
a3f17187 | 1427 | printf_filtered (_("It stopped at breakpoint %d.\n"), num); |
8671a17b | 1428 | stat = bpstat_num (&bs, &num); |
c906108c SS |
1429 | } |
1430 | } | |
1431 | else if (stop_signal != TARGET_SIGNAL_0) | |
1432 | { | |
a3f17187 | 1433 | printf_filtered (_("It stopped with signal %s, %s.\n"), |
c906108c SS |
1434 | target_signal_to_name (stop_signal), |
1435 | target_signal_to_string (stop_signal)); | |
1436 | } | |
1437 | ||
1438 | if (!from_tty) | |
1439 | { | |
a3f17187 AC |
1440 | printf_filtered (_("\ |
1441 | Type \"info stack\" or \"info registers\" for more information.\n")); | |
c906108c SS |
1442 | } |
1443 | } | |
1444 | \f | |
1445 | static void | |
fba45db2 | 1446 | environment_info (char *var, int from_tty) |
c906108c SS |
1447 | { |
1448 | if (var) | |
1449 | { | |
aa1ee363 | 1450 | char *val = get_in_environ (inferior_environ, var); |
c906108c SS |
1451 | if (val) |
1452 | { | |
1453 | puts_filtered (var); | |
1454 | puts_filtered (" = "); | |
1455 | puts_filtered (val); | |
1456 | puts_filtered ("\n"); | |
1457 | } | |
1458 | else | |
1459 | { | |
1460 | puts_filtered ("Environment variable \""); | |
1461 | puts_filtered (var); | |
1462 | puts_filtered ("\" not defined.\n"); | |
1463 | } | |
1464 | } | |
1465 | else | |
1466 | { | |
aa1ee363 | 1467 | char **vector = environ_vector (inferior_environ); |
c906108c SS |
1468 | while (*vector) |
1469 | { | |
1470 | puts_filtered (*vector++); | |
1471 | puts_filtered ("\n"); | |
1472 | } | |
1473 | } | |
1474 | } | |
1475 | ||
1476 | static void | |
fba45db2 | 1477 | set_environment_command (char *arg, int from_tty) |
c906108c | 1478 | { |
52f0bd74 | 1479 | char *p, *val, *var; |
c906108c SS |
1480 | int nullset = 0; |
1481 | ||
1482 | if (arg == 0) | |
e2e0b3e5 | 1483 | error_no_arg (_("environment variable and value")); |
c906108c SS |
1484 | |
1485 | /* Find seperation between variable name and value */ | |
1486 | p = (char *) strchr (arg, '='); | |
1487 | val = (char *) strchr (arg, ' '); | |
1488 | ||
1489 | if (p != 0 && val != 0) | |
1490 | { | |
1491 | /* We have both a space and an equals. If the space is before the | |
c5aa993b JM |
1492 | equals, walk forward over the spaces til we see a nonspace |
1493 | (possibly the equals). */ | |
c906108c SS |
1494 | if (p > val) |
1495 | while (*val == ' ') | |
1496 | val++; | |
1497 | ||
1498 | /* Now if the = is after the char following the spaces, | |
c5aa993b | 1499 | take the char following the spaces. */ |
c906108c SS |
1500 | if (p > val) |
1501 | p = val - 1; | |
1502 | } | |
1503 | else if (val != 0 && p == 0) | |
1504 | p = val; | |
1505 | ||
1506 | if (p == arg) | |
e2e0b3e5 | 1507 | error_no_arg (_("environment variable to set")); |
c906108c SS |
1508 | |
1509 | if (p == 0 || p[1] == 0) | |
1510 | { | |
1511 | nullset = 1; | |
1512 | if (p == 0) | |
1513 | p = arg + strlen (arg); /* So that savestring below will work */ | |
1514 | } | |
1515 | else | |
1516 | { | |
1517 | /* Not setting variable value to null */ | |
1518 | val = p + 1; | |
1519 | while (*val == ' ' || *val == '\t') | |
1520 | val++; | |
1521 | } | |
1522 | ||
c5aa993b JM |
1523 | while (p != arg && (p[-1] == ' ' || p[-1] == '\t')) |
1524 | p--; | |
c906108c SS |
1525 | |
1526 | var = savestring (arg, p - arg); | |
1527 | if (nullset) | |
1528 | { | |
a3f17187 AC |
1529 | printf_filtered (_("\ |
1530 | Setting environment variable \"%s\" to null value.\n"), | |
1531 | var); | |
c906108c SS |
1532 | set_in_environ (inferior_environ, var, ""); |
1533 | } | |
1534 | else | |
1535 | set_in_environ (inferior_environ, var, val); | |
b8c9b27d | 1536 | xfree (var); |
c906108c SS |
1537 | } |
1538 | ||
1539 | static void | |
fba45db2 | 1540 | unset_environment_command (char *var, int from_tty) |
c906108c SS |
1541 | { |
1542 | if (var == 0) | |
1543 | { | |
1544 | /* If there is no argument, delete all environment variables. | |
c5aa993b | 1545 | Ask for confirmation if reading from the terminal. */ |
e2e0b3e5 | 1546 | if (!from_tty || query (_("Delete all environment variables? "))) |
c906108c SS |
1547 | { |
1548 | free_environ (inferior_environ); | |
1549 | inferior_environ = make_environ (); | |
1550 | } | |
1551 | } | |
1552 | else | |
1553 | unset_in_environ (inferior_environ, var); | |
1554 | } | |
1555 | ||
1556 | /* Handle the execution path (PATH variable) */ | |
1557 | ||
1558 | static const char path_var_name[] = "PATH"; | |
1559 | ||
c906108c | 1560 | static void |
fba45db2 | 1561 | path_info (char *args, int from_tty) |
c906108c SS |
1562 | { |
1563 | puts_filtered ("Executable and object file path: "); | |
1564 | puts_filtered (get_in_environ (inferior_environ, path_var_name)); | |
1565 | puts_filtered ("\n"); | |
1566 | } | |
1567 | ||
1568 | /* Add zero or more directories to the front of the execution path. */ | |
1569 | ||
1570 | static void | |
fba45db2 | 1571 | path_command (char *dirname, int from_tty) |
c906108c SS |
1572 | { |
1573 | char *exec_path; | |
1574 | char *env; | |
1575 | dont_repeat (); | |
1576 | env = get_in_environ (inferior_environ, path_var_name); | |
1577 | /* Can be null if path is not set */ | |
1578 | if (!env) | |
1579 | env = ""; | |
4fcf66da | 1580 | exec_path = xstrdup (env); |
c906108c SS |
1581 | mod_path (dirname, &exec_path); |
1582 | set_in_environ (inferior_environ, path_var_name, exec_path); | |
b8c9b27d | 1583 | xfree (exec_path); |
c906108c | 1584 | if (from_tty) |
c5aa993b | 1585 | path_info ((char *) NULL, from_tty); |
c906108c | 1586 | } |
c906108c | 1587 | \f |
c5aa993b | 1588 | |
4782dc19 | 1589 | /* Print out the machine register regnum. If regnum is -1, print all |
0ab7a791 AC |
1590 | registers (print_all == 1) or all non-float and non-vector |
1591 | registers (print_all == 0). | |
c906108c SS |
1592 | |
1593 | For most machines, having all_registers_info() print the | |
0ab7a791 AC |
1594 | register(s) one per line is good enough. If a different format is |
1595 | required, (eg, for MIPS or Pyramid 90x, which both have lots of | |
1596 | regs), or there is an existing convention for showing all the | |
1597 | registers, define the architecture method PRINT_REGISTERS_INFO to | |
1598 | provide that format. */ | |
c906108c | 1599 | |
666e11c5 | 1600 | void |
0ab7a791 AC |
1601 | default_print_registers_info (struct gdbarch *gdbarch, |
1602 | struct ui_file *file, | |
1603 | struct frame_info *frame, | |
1604 | int regnum, int print_all) | |
c906108c | 1605 | { |
0ab7a791 | 1606 | int i; |
a4bd449d UW |
1607 | const int numregs = gdbarch_num_regs (gdbarch) |
1608 | + gdbarch_num_pseudo_regs (gdbarch); | |
10c42a71 | 1609 | gdb_byte buffer[MAX_REGISTER_SIZE]; |
0ab7a791 | 1610 | |
c906108c SS |
1611 | for (i = 0; i < numregs; i++) |
1612 | { | |
4782dc19 AC |
1613 | /* Decide between printing all regs, non-float / vector regs, or |
1614 | specific reg. */ | |
c5aa993b JM |
1615 | if (regnum == -1) |
1616 | { | |
f9418c0f | 1617 | if (print_all) |
4782dc19 | 1618 | { |
f9418c0f | 1619 | if (!gdbarch_register_reggroup_p (gdbarch, i, all_reggroup)) |
4782dc19 | 1620 | continue; |
f9418c0f AC |
1621 | } |
1622 | else | |
1623 | { | |
1624 | if (!gdbarch_register_reggroup_p (gdbarch, i, general_reggroup)) | |
4782dc19 AC |
1625 | continue; |
1626 | } | |
c5aa993b JM |
1627 | } |
1628 | else | |
1629 | { | |
1630 | if (i != regnum) | |
1631 | continue; | |
1632 | } | |
c906108c SS |
1633 | |
1634 | /* If the register name is empty, it is undefined for this | |
c5aa993b | 1635 | processor, so don't display anything. */ |
a4bd449d UW |
1636 | if (gdbarch_register_name (gdbarch, i) == NULL |
1637 | || *(gdbarch_register_name (gdbarch, i)) == '\0') | |
c906108c SS |
1638 | continue; |
1639 | ||
a4bd449d | 1640 | fputs_filtered (gdbarch_register_name (gdbarch, i), file); |
c9f4d572 | 1641 | print_spaces_filtered (15 - strlen (gdbarch_register_name |
a4bd449d | 1642 | (gdbarch, i)), file); |
c906108c SS |
1643 | |
1644 | /* Get the data in raw format. */ | |
9730f241 | 1645 | if (! frame_register_read (frame, i, buffer)) |
c906108c | 1646 | { |
0ab7a791 | 1647 | fprintf_filtered (file, "*value not available*\n"); |
c906108c SS |
1648 | continue; |
1649 | } | |
1650 | ||
0ab7a791 AC |
1651 | /* If virtual format is floating, print it that way, and in raw |
1652 | hex. */ | |
f949c649 TJB |
1653 | if (TYPE_CODE (register_type (gdbarch, i)) == TYPE_CODE_FLT |
1654 | || TYPE_CODE (register_type (gdbarch, i)) == TYPE_CODE_DECFLOAT) | |
c906108c | 1655 | { |
0ab7a791 | 1656 | int j; |
c906108c | 1657 | |
a4bd449d | 1658 | val_print (register_type (gdbarch, i), buffer, 0, 0, |
0ab7a791 | 1659 | file, 0, 1, 0, Val_pretty_default); |
c906108c | 1660 | |
0ab7a791 | 1661 | fprintf_filtered (file, "\t(raw 0x"); |
a4bd449d | 1662 | for (j = 0; j < register_size (gdbarch, i); j++) |
c906108c | 1663 | { |
0ab7a791 | 1664 | int idx; |
a4bd449d | 1665 | if (gdbarch_byte_order (gdbarch) == BFD_ENDIAN_BIG) |
0ab7a791 AC |
1666 | idx = j; |
1667 | else | |
a4bd449d | 1668 | idx = register_size (gdbarch, i) - 1 - j; |
9730f241 | 1669 | fprintf_filtered (file, "%02x", (unsigned char) buffer[idx]); |
c906108c | 1670 | } |
0ab7a791 | 1671 | fprintf_filtered (file, ")"); |
c906108c | 1672 | } |
c906108c SS |
1673 | else |
1674 | { | |
ab4327e0 | 1675 | /* Print the register in hex. */ |
a4bd449d | 1676 | val_print (register_type (gdbarch, i), buffer, 0, 0, |
9d84ac84 | 1677 | file, 'x', 1, 0, Val_pretty_default); |
ab4327e0 EZ |
1678 | /* If not a vector register, print it also according to its |
1679 | natural format. */ | |
a4bd449d | 1680 | if (TYPE_VECTOR (register_type (gdbarch, i)) == 0) |
ab4327e0 | 1681 | { |
9d84ac84 | 1682 | fprintf_filtered (file, "\t"); |
a4bd449d | 1683 | val_print (register_type (gdbarch, i), buffer, 0, 0, |
9d84ac84 | 1684 | file, 0, 1, 0, Val_pretty_default); |
ab4327e0 | 1685 | } |
c906108c SS |
1686 | } |
1687 | ||
0ab7a791 | 1688 | fprintf_filtered (file, "\n"); |
c906108c SS |
1689 | } |
1690 | } | |
c906108c | 1691 | |
c906108c | 1692 | void |
fba45db2 | 1693 | registers_info (char *addr_exp, int fpregs) |
c906108c | 1694 | { |
206415a3 | 1695 | struct frame_info *frame; |
a4bd449d | 1696 | struct gdbarch *gdbarch; |
c906108c | 1697 | int regnum, numregs; |
52f0bd74 | 1698 | char *end; |
c906108c SS |
1699 | |
1700 | if (!target_has_registers) | |
8a3fe4f8 | 1701 | error (_("The program has no registers now.")); |
206415a3 | 1702 | frame = get_selected_frame (NULL); |
a4bd449d | 1703 | gdbarch = get_frame_arch (frame); |
c906108c SS |
1704 | |
1705 | if (!addr_exp) | |
1706 | { | |
a4bd449d | 1707 | gdbarch_print_registers_info (gdbarch, gdb_stdout, |
206415a3 | 1708 | frame, -1, fpregs); |
c906108c SS |
1709 | return; |
1710 | } | |
1711 | ||
f9418c0f | 1712 | while (*addr_exp != '\0') |
c5aa993b | 1713 | { |
f9418c0f AC |
1714 | char *start; |
1715 | const char *end; | |
c906108c | 1716 | |
f9418c0f AC |
1717 | /* Keep skipping leading white space. */ |
1718 | if (isspace ((*addr_exp))) | |
1719 | { | |
1720 | addr_exp++; | |
1721 | continue; | |
1722 | } | |
c906108c | 1723 | |
f9418c0f AC |
1724 | /* Discard any leading ``$''. Check that there is something |
1725 | resembling a register following it. */ | |
1726 | if (addr_exp[0] == '$') | |
1727 | addr_exp++; | |
1728 | if (isspace ((*addr_exp)) || (*addr_exp) == '\0') | |
8a3fe4f8 | 1729 | error (_("Missing register name")); |
c906108c | 1730 | |
f9418c0f AC |
1731 | /* Find the start/end of this register name/num/group. */ |
1732 | start = addr_exp; | |
1733 | while ((*addr_exp) != '\0' && !isspace ((*addr_exp))) | |
1734 | addr_exp++; | |
1735 | end = addr_exp; | |
ad842144 | 1736 | |
f9418c0f AC |
1737 | /* Figure out what we've found and display it. */ |
1738 | ||
1739 | /* A register name? */ | |
1740 | { | |
ad842144 | 1741 | int regnum = frame_map_name_to_regnum (frame, start, end - start); |
f9418c0f AC |
1742 | if (regnum >= 0) |
1743 | { | |
ad842144 MR |
1744 | /* User registers lie completely outside of the range of |
1745 | normal registers. Catch them early so that the target | |
1746 | never sees them. */ | |
1747 | if (regnum >= gdbarch_num_regs (gdbarch) | |
1748 | + gdbarch_num_pseudo_regs (gdbarch)) | |
1749 | { | |
1750 | struct value *val = value_of_user_reg (regnum, frame); | |
1751 | ||
1752 | printf_filtered ("%s: ", start); | |
1753 | print_scalar_formatted (value_contents (val), | |
1754 | check_typedef (value_type (val)), | |
1755 | 'x', 0, gdb_stdout); | |
1756 | printf_filtered ("\n"); | |
1757 | } | |
1758 | else | |
1759 | gdbarch_print_registers_info (gdbarch, gdb_stdout, | |
1760 | frame, regnum, fpregs); | |
f9418c0f AC |
1761 | continue; |
1762 | } | |
1763 | } | |
ad842144 | 1764 | |
f9418c0f AC |
1765 | /* A register number? (how portable is this one?). */ |
1766 | { | |
1767 | char *endptr; | |
1768 | int regnum = strtol (start, &endptr, 0); | |
1769 | if (endptr == end | |
1770 | && regnum >= 0 | |
a4bd449d UW |
1771 | && regnum < gdbarch_num_regs (gdbarch) |
1772 | + gdbarch_num_pseudo_regs (gdbarch)) | |
f9418c0f | 1773 | { |
a4bd449d | 1774 | gdbarch_print_registers_info (gdbarch, gdb_stdout, |
206415a3 | 1775 | frame, regnum, fpregs); |
f9418c0f AC |
1776 | continue; |
1777 | } | |
1778 | } | |
1779 | ||
1780 | /* A register group? */ | |
1781 | { | |
6c7d17ba | 1782 | struct reggroup *group; |
a4bd449d | 1783 | for (group = reggroup_next (gdbarch, NULL); |
6c7d17ba | 1784 | group != NULL; |
a4bd449d | 1785 | group = reggroup_next (gdbarch, group)) |
f9418c0f AC |
1786 | { |
1787 | /* Don't bother with a length check. Should the user | |
1788 | enter a short register group name, go with the first | |
1789 | group that matches. */ | |
6c7d17ba | 1790 | if (strncmp (start, reggroup_name (group), end - start) == 0) |
f9418c0f AC |
1791 | break; |
1792 | } | |
6c7d17ba | 1793 | if (group != NULL) |
f9418c0f AC |
1794 | { |
1795 | int regnum; | |
f57d151a | 1796 | for (regnum = 0; |
a4bd449d UW |
1797 | regnum < gdbarch_num_regs (gdbarch) |
1798 | + gdbarch_num_pseudo_regs (gdbarch); | |
f57d151a | 1799 | regnum++) |
f9418c0f | 1800 | { |
a4bd449d UW |
1801 | if (gdbarch_register_reggroup_p (gdbarch, regnum, group)) |
1802 | gdbarch_print_registers_info (gdbarch, | |
206415a3 | 1803 | gdb_stdout, frame, |
f9418c0f AC |
1804 | regnum, fpregs); |
1805 | } | |
1806 | continue; | |
1807 | } | |
1808 | } | |
c906108c | 1809 | |
f9418c0f | 1810 | /* Nothing matched. */ |
8a3fe4f8 | 1811 | error (_("Invalid register `%.*s'"), (int) (end - start), start); |
c5aa993b | 1812 | } |
c906108c SS |
1813 | } |
1814 | ||
1815 | void | |
fba45db2 | 1816 | all_registers_info (char *addr_exp, int from_tty) |
c906108c SS |
1817 | { |
1818 | registers_info (addr_exp, 1); | |
1819 | } | |
1820 | ||
a58dd373 | 1821 | static void |
fba45db2 | 1822 | nofp_registers_info (char *addr_exp, int from_tty) |
c906108c SS |
1823 | { |
1824 | registers_info (addr_exp, 0); | |
1825 | } | |
e76f1f2e AC |
1826 | |
1827 | static void | |
1828 | print_vector_info (struct gdbarch *gdbarch, struct ui_file *file, | |
1829 | struct frame_info *frame, const char *args) | |
1830 | { | |
1831 | if (gdbarch_print_vector_info_p (gdbarch)) | |
1832 | gdbarch_print_vector_info (gdbarch, file, frame, args); | |
1833 | else | |
1834 | { | |
1835 | int regnum; | |
1836 | int printed_something = 0; | |
ab4327e0 | 1837 | |
f57d151a | 1838 | for (regnum = 0; |
a4bd449d UW |
1839 | regnum < gdbarch_num_regs (gdbarch) |
1840 | + gdbarch_num_pseudo_regs (gdbarch); | |
f57d151a | 1841 | regnum++) |
e76f1f2e | 1842 | { |
f9418c0f | 1843 | if (gdbarch_register_reggroup_p (gdbarch, regnum, vector_reggroup)) |
e76f1f2e AC |
1844 | { |
1845 | printed_something = 1; | |
e76f1f2e | 1846 | gdbarch_print_registers_info (gdbarch, file, frame, regnum, 1); |
e76f1f2e AC |
1847 | } |
1848 | } | |
1849 | if (!printed_something) | |
1850 | fprintf_filtered (file, "No vector information\n"); | |
1851 | } | |
1852 | } | |
1853 | ||
1854 | static void | |
1855 | vector_info (char *args, int from_tty) | |
1856 | { | |
206415a3 DJ |
1857 | if (!target_has_registers) |
1858 | error (_("The program has no registers now.")); | |
1859 | ||
1860 | print_vector_info (current_gdbarch, gdb_stdout, | |
1861 | get_selected_frame (NULL), args); | |
e76f1f2e | 1862 | } |
c906108c | 1863 | \f |
c5aa993b | 1864 | |
c906108c SS |
1865 | /* |
1866 | * TODO: | |
1867 | * Should save/restore the tty state since it might be that the | |
1868 | * program to be debugged was started on this tty and it wants | |
1869 | * the tty in some state other than what we want. If it's running | |
1870 | * on another terminal or without a terminal, then saving and | |
1871 | * restoring the tty state is a harmless no-op. | |
1872 | * This only needs to be done if we are attaching to a process. | |
1873 | */ | |
1874 | ||
1875 | /* | |
1876 | attach_command -- | |
1877 | takes a program started up outside of gdb and ``attaches'' to it. | |
1878 | This stops it cold in its tracks and allows us to start debugging it. | |
1879 | and wait for the trace-trap that results from attaching. */ | |
1880 | ||
9356cf8d PA |
1881 | static void |
1882 | attach_command_post_wait (char *args, int from_tty, int async_exec) | |
1883 | { | |
1884 | char *exec_file; | |
1885 | char *full_exec_path = NULL; | |
1886 | ||
1887 | stop_soon = NO_STOP_QUIETLY; | |
1888 | ||
1889 | /* If no exec file is yet known, try to determine it from the | |
1890 | process itself. */ | |
1891 | exec_file = (char *) get_exec_file (0); | |
1892 | if (!exec_file) | |
1893 | { | |
1894 | exec_file = target_pid_to_exec_file (PIDGET (inferior_ptid)); | |
1895 | if (exec_file) | |
1896 | { | |
1897 | /* It's possible we don't have a full path, but rather just a | |
1898 | filename. Some targets, such as HP-UX, don't provide the | |
1899 | full path, sigh. | |
1900 | ||
1901 | Attempt to qualify the filename against the source path. | |
1902 | (If that fails, we'll just fall back on the original | |
1903 | filename. Not much more we can do...) | |
1904 | */ | |
1905 | if (!source_full_path_of (exec_file, &full_exec_path)) | |
1906 | full_exec_path = savestring (exec_file, strlen (exec_file)); | |
1907 | ||
1908 | exec_file_attach (full_exec_path, from_tty); | |
1909 | symbol_file_add_main (full_exec_path, from_tty); | |
1910 | } | |
1911 | } | |
1912 | else | |
1913 | { | |
1914 | reopen_exec_file (); | |
1915 | reread_symbols (); | |
1916 | } | |
1917 | ||
1918 | /* Take any necessary post-attaching actions for this platform. */ | |
1919 | target_post_attach (PIDGET (inferior_ptid)); | |
1920 | ||
1921 | post_create_inferior (¤t_target, from_tty); | |
1922 | ||
1923 | /* Install inferior's terminal modes. */ | |
1924 | target_terminal_inferior (); | |
1925 | ||
1926 | if (async_exec) | |
1927 | proceed ((CORE_ADDR) -1, TARGET_SIGNAL_0, 0); | |
1928 | else | |
1929 | { | |
1930 | if (target_can_async_p ()) | |
1931 | async_enable_stdin (); | |
1932 | normal_stop (); | |
1933 | if (deprecated_attach_hook) | |
1934 | deprecated_attach_hook (); | |
1935 | } | |
1936 | } | |
1937 | ||
1938 | static void | |
1939 | attach_command_continuation (struct continuation_arg *arg) | |
1940 | { | |
1941 | char *args; | |
1942 | int from_tty; | |
1943 | int async_exec; | |
1944 | ||
1945 | args = (char *) arg->data.pointer; | |
1946 | from_tty = arg->next->data.integer; | |
1947 | async_exec = arg->next->next->data.integer; | |
1948 | ||
1949 | attach_command_post_wait (args, from_tty, async_exec); | |
1950 | } | |
1951 | ||
c906108c | 1952 | void |
fba45db2 | 1953 | attach_command (char *args, int from_tty) |
c906108c | 1954 | { |
c5aa993b JM |
1955 | char *exec_file; |
1956 | char *full_exec_path = NULL; | |
9356cf8d | 1957 | int async_exec = 0; |
c906108c | 1958 | |
c5aa993b | 1959 | dont_repeat (); /* Not for the faint of heart */ |
c906108c SS |
1960 | |
1961 | if (target_has_execution) | |
1962 | { | |
1963 | if (query ("A program is being debugged already. Kill it? ")) | |
1964 | target_kill (); | |
1965 | else | |
8a3fe4f8 | 1966 | error (_("Not killed.")); |
c906108c SS |
1967 | } |
1968 | ||
fd79ecee DJ |
1969 | /* Clean up any leftovers from other runs. Some other things from |
1970 | this function should probably be moved into target_pre_inferior. */ | |
1971 | target_pre_inferior (from_tty); | |
1972 | ||
4bcff7eb CV |
1973 | /* Clear out solib state. Otherwise the solib state of the previous |
1974 | inferior might have survived and is entirely wrong for the new | |
155bd5d1 AC |
1975 | target. This has been observed on GNU/Linux using glibc 2.3. How |
1976 | to reproduce: | |
4bcff7eb CV |
1977 | |
1978 | bash$ ./foo& | |
1979 | [1] 4711 | |
1980 | bash$ ./foo& | |
1981 | [1] 4712 | |
1982 | bash$ gdb ./foo | |
1983 | [...] | |
1984 | (gdb) attach 4711 | |
1985 | (gdb) detach | |
1986 | (gdb) attach 4712 | |
1987 | Cannot access memory at address 0xdeadbeef | |
1988 | */ | |
7a72d44c | 1989 | clear_solib (); |
4bcff7eb | 1990 | |
9356cf8d PA |
1991 | if (args) |
1992 | { | |
1993 | async_exec = strip_bg_char (&args); | |
1994 | ||
1995 | /* If we get a request for running in the bg but the target | |
1996 | doesn't support it, error out. */ | |
1997 | if (async_exec && !target_can_async_p ()) | |
1998 | error (_("Asynchronous execution not supported on this target.")); | |
1999 | } | |
2000 | ||
2001 | /* If we don't get a request of running in the bg, then we need | |
2002 | to simulate synchronous (fg) execution. */ | |
2003 | if (!async_exec && target_can_async_p ()) | |
2004 | { | |
2005 | /* Simulate synchronous execution */ | |
2006 | async_disable_stdin (); | |
2007 | } | |
2008 | ||
c906108c SS |
2009 | target_attach (args, from_tty); |
2010 | ||
2011 | /* Set up the "saved terminal modes" of the inferior | |
2012 | based on what modes we are starting it with. */ | |
2013 | target_terminal_init (); | |
2014 | ||
c906108c SS |
2015 | /* Set up execution context to know that we should return from |
2016 | wait_for_inferior as soon as the target reports a stop. */ | |
2017 | init_wait_for_inferior (); | |
2018 | clear_proceed_status (); | |
c906108c SS |
2019 | |
2020 | /* No traps are generated when attaching to inferior under Mach 3 | |
2021 | or GNU hurd. */ | |
2022 | #ifndef ATTACH_NO_WAIT | |
c54cfec8 EZ |
2023 | /* Careful here. See comments in inferior.h. Basically some OSes |
2024 | don't ignore SIGSTOPs on continue requests anymore. We need a | |
2025 | way for handle_inferior_event to reset the stop_signal variable | |
2026 | after an attach, and this is what STOP_QUIETLY_NO_SIGSTOP is for. */ | |
c0236d92 | 2027 | stop_soon = STOP_QUIETLY_NO_SIGSTOP; |
c906108c | 2028 | |
9356cf8d | 2029 | if (target_can_async_p ()) |
c5aa993b | 2030 | { |
9356cf8d PA |
2031 | /* sync_execution mode. Wait for stop. */ |
2032 | struct continuation_arg *arg1, *arg2, *arg3; | |
c5aa993b | 2033 | |
9356cf8d PA |
2034 | arg1 = |
2035 | (struct continuation_arg *) xmalloc (sizeof (struct continuation_arg)); | |
2036 | arg2 = | |
2037 | (struct continuation_arg *) xmalloc (sizeof (struct continuation_arg)); | |
2038 | arg3 = | |
2039 | (struct continuation_arg *) xmalloc (sizeof (struct continuation_arg)); | |
2040 | arg1->next = arg2; | |
2041 | arg2->next = arg3; | |
2042 | arg3->next = NULL; | |
2043 | arg1->data.pointer = args; | |
2044 | arg2->data.integer = from_tty; | |
2045 | arg3->data.integer = async_exec; | |
2046 | add_continuation (attach_command_continuation, arg1); | |
2047 | return; | |
63ed89b4 | 2048 | } |
c906108c | 2049 | |
9356cf8d PA |
2050 | wait_for_inferior (0); |
2051 | #endif | |
6426a772 | 2052 | |
9356cf8d | 2053 | attach_command_post_wait (args, from_tty, async_exec); |
c906108c SS |
2054 | } |
2055 | ||
2056 | /* | |
2057 | * detach_command -- | |
2058 | * takes a program previously attached to and detaches it. | |
2059 | * The program resumes execution and will no longer stop | |
2060 | * on signals, etc. We better not have left any breakpoints | |
2061 | * in the program or it'll die when it hits one. For this | |
2062 | * to work, it may be necessary for the process to have been | |
2063 | * previously attached. It *might* work if the program was | |
2064 | * started via the normal ptrace (PTRACE_TRACEME). | |
2065 | */ | |
2066 | ||
2067 | static void | |
fba45db2 | 2068 | detach_command (char *args, int from_tty) |
c906108c | 2069 | { |
1f5d0fc9 | 2070 | dont_repeat (); /* Not for the faint of heart. */ |
c906108c | 2071 | target_detach (args, from_tty); |
e85a822c | 2072 | no_shared_libraries (NULL, from_tty); |
9a4105ab AC |
2073 | if (deprecated_detach_hook) |
2074 | deprecated_detach_hook (); | |
c906108c SS |
2075 | } |
2076 | ||
6ad8ae5c DJ |
2077 | /* Disconnect from the current target without resuming it (leaving it |
2078 | waiting for a debugger). | |
2079 | ||
2080 | We'd better not have left any breakpoints in the program or the | |
2081 | next debugger will get confused. Currently only supported for some | |
2082 | remote targets, since the normal attach mechanisms don't work on | |
2083 | stopped processes on some native platforms (e.g. GNU/Linux). */ | |
2084 | ||
2085 | static void | |
2086 | disconnect_command (char *args, int from_tty) | |
2087 | { | |
2088 | dont_repeat (); /* Not for the faint of heart */ | |
2089 | target_disconnect (args, from_tty); | |
e85a822c | 2090 | no_shared_libraries (NULL, from_tty); |
9a4105ab AC |
2091 | if (deprecated_detach_hook) |
2092 | deprecated_detach_hook (); | |
6ad8ae5c DJ |
2093 | } |
2094 | ||
43ff13b4 JM |
2095 | /* Stop the execution of the target while running in async mode, in |
2096 | the backgound. */ | |
8b93c638 | 2097 | void |
fba45db2 | 2098 | interrupt_target_command (char *args, int from_tty) |
43ff13b4 | 2099 | { |
362646f5 | 2100 | if (target_can_async_p ()) |
43ff13b4 | 2101 | { |
c5aa993b | 2102 | dont_repeat (); /* Not for the faint of heart */ |
43ff13b4 JM |
2103 | target_stop (); |
2104 | } | |
2105 | } | |
2106 | ||
c906108c | 2107 | static void |
23e3a7ac AC |
2108 | print_float_info (struct gdbarch *gdbarch, struct ui_file *file, |
2109 | struct frame_info *frame, const char *args) | |
c906108c | 2110 | { |
23e3a7ac AC |
2111 | if (gdbarch_print_float_info_p (gdbarch)) |
2112 | gdbarch_print_float_info (gdbarch, file, frame, args); | |
2113 | else | |
2114 | { | |
23e3a7ac AC |
2115 | int regnum; |
2116 | int printed_something = 0; | |
ab4327e0 | 2117 | |
f57d151a | 2118 | for (regnum = 0; |
a4bd449d UW |
2119 | regnum < gdbarch_num_regs (gdbarch) |
2120 | + gdbarch_num_pseudo_regs (gdbarch); | |
f57d151a | 2121 | regnum++) |
23e3a7ac | 2122 | { |
f9418c0f | 2123 | if (gdbarch_register_reggroup_p (gdbarch, regnum, float_reggroup)) |
23e3a7ac AC |
2124 | { |
2125 | printed_something = 1; | |
23e3a7ac | 2126 | gdbarch_print_registers_info (gdbarch, file, frame, regnum, 1); |
23e3a7ac AC |
2127 | } |
2128 | } | |
2129 | if (!printed_something) | |
2130 | fprintf_filtered (file, "\ | |
2131 | No floating-point info available for this processor.\n"); | |
23e3a7ac AC |
2132 | } |
2133 | } | |
2134 | ||
2135 | static void | |
2136 | float_info (char *args, int from_tty) | |
2137 | { | |
206415a3 DJ |
2138 | if (!target_has_registers) |
2139 | error (_("The program has no registers now.")); | |
2140 | ||
1f5d0fc9 | 2141 | print_float_info (current_gdbarch, gdb_stdout, |
206415a3 | 2142 | get_selected_frame (NULL), args); |
c906108c SS |
2143 | } |
2144 | \f | |
c906108c | 2145 | static void |
fba45db2 | 2146 | unset_command (char *args, int from_tty) |
c906108c | 2147 | { |
a3f17187 AC |
2148 | printf_filtered (_("\ |
2149 | \"unset\" must be followed by the name of an unset subcommand.\n")); | |
c906108c SS |
2150 | help_list (unsetlist, "unset ", -1, gdb_stdout); |
2151 | } | |
2152 | ||
2153 | void | |
fba45db2 | 2154 | _initialize_infcmd (void) |
c906108c | 2155 | { |
3cb3b8df BR |
2156 | struct cmd_list_element *c = NULL; |
2157 | ||
2158 | /* add the filename of the terminal connected to inferior I/O */ | |
2159 | add_setshow_filename_cmd ("inferior-tty", class_run, | |
2160 | &inferior_io_terminal, _("\ | |
2161 | Set terminal for future runs of program being debugged."), _("\ | |
2162 | Show terminal for future runs of program being debugged."), _("\ | |
2163 | Usage: set inferior-tty /dev/pts/1"), NULL, NULL, &setlist, &showlist); | |
2164 | add_com_alias ("tty", "set inferior-tty", class_alias, 0); | |
c906108c | 2165 | |
b4b4ac0b AC |
2166 | add_setshow_optional_filename_cmd ("args", class_run, |
2167 | &inferior_args, _("\ | |
2168 | Set argument list to give program being debugged when it is started."), _("\ | |
2169 | Show argument list to give program being debugged when it is started."), _("\ | |
2170 | Follow this command with any number of args, to be passed to the program."), | |
2171 | notice_args_set, | |
2172 | notice_args_read, | |
2173 | &setlist, &showlist); | |
c906108c | 2174 | |
1a966eab AC |
2175 | c = add_cmd ("environment", no_class, environment_info, _("\ |
2176 | The environment to give the program, or one variable's value.\n\ | |
c906108c SS |
2177 | With an argument VAR, prints the value of environment variable VAR to\n\ |
2178 | give the program being debugged. With no arguments, prints the entire\n\ | |
1a966eab | 2179 | environment to be given to the program."), &showlist); |
5ba2abeb | 2180 | set_cmd_completer (c, noop_completer); |
c906108c SS |
2181 | |
2182 | add_prefix_cmd ("unset", no_class, unset_command, | |
1bedd215 | 2183 | _("Complement to certain \"set\" commands."), |
c906108c | 2184 | &unsetlist, "unset ", 0, &cmdlist); |
c5aa993b | 2185 | |
1a966eab AC |
2186 | c = add_cmd ("environment", class_run, unset_environment_command, _("\ |
2187 | Cancel environment variable VAR for the program.\n\ | |
2188 | This does not affect the program until the next \"run\" command."), | |
c5aa993b | 2189 | &unsetlist); |
5ba2abeb | 2190 | set_cmd_completer (c, noop_completer); |
c906108c | 2191 | |
1a966eab AC |
2192 | c = add_cmd ("environment", class_run, set_environment_command, _("\ |
2193 | Set environment variable value to give the program.\n\ | |
c906108c SS |
2194 | Arguments are VAR VALUE where VAR is variable name and VALUE is value.\n\ |
2195 | VALUES of environment variables are uninterpreted strings.\n\ | |
1a966eab | 2196 | This does not affect the program until the next \"run\" command."), |
c5aa993b | 2197 | &setlist); |
5ba2abeb | 2198 | set_cmd_completer (c, noop_completer); |
c5aa993b | 2199 | |
1bedd215 AC |
2200 | c = add_com ("path", class_files, path_command, _("\ |
2201 | Add directory DIR(s) to beginning of search path for object files.\n\ | |
c906108c SS |
2202 | $cwd in the path means the current working directory.\n\ |
2203 | This path is equivalent to the $PATH shell variable. It is a list of\n\ | |
2204 | directories, separated by colons. These directories are searched to find\n\ | |
1bedd215 | 2205 | fully linked executable files and separately compiled object files as needed.")); |
5ba2abeb | 2206 | set_cmd_completer (c, filename_completer); |
c906108c | 2207 | |
1a966eab AC |
2208 | c = add_cmd ("paths", no_class, path_info, _("\ |
2209 | Current search path for finding object files.\n\ | |
c906108c SS |
2210 | $cwd in the path means the current working directory.\n\ |
2211 | This path is equivalent to the $PATH shell variable. It is a list of\n\ | |
2212 | directories, separated by colons. These directories are searched to find\n\ | |
1a966eab | 2213 | fully linked executable files and separately compiled object files as needed."), |
c906108c | 2214 | &showlist); |
5ba2abeb | 2215 | set_cmd_completer (c, noop_completer); |
c906108c | 2216 | |
1bedd215 AC |
2217 | add_com ("attach", class_run, attach_command, _("\ |
2218 | Attach to a process or file outside of GDB.\n\ | |
c906108c SS |
2219 | This command attaches to another target, of the same type as your last\n\ |
2220 | \"target\" command (\"info files\" will show your target stack).\n\ | |
2221 | The command may take as argument a process id or a device file.\n\ | |
2222 | For a process id, you must have permission to send the process a signal,\n\ | |
2223 | and it must have the same effective uid as the debugger.\n\ | |
2224 | When using \"attach\" with a process id, the debugger finds the\n\ | |
2225 | program running in the process, looking first in the current working\n\ | |
2226 | directory, or (if not found there) using the source file search path\n\ | |
2227 | (see the \"directory\" command). You can also use the \"file\" command\n\ | |
1bedd215 | 2228 | to specify the program, and to load its symbol table.")); |
c906108c | 2229 | |
f73adfeb | 2230 | add_prefix_cmd ("detach", class_run, detach_command, _("\ |
1bedd215 | 2231 | Detach a process or file previously attached.\n\ |
c906108c | 2232 | If a process, it is no longer traced, and it continues its execution. If\n\ |
f73adfeb AS |
2233 | you were debugging a file, the file is closed and gdb no longer accesses it."), |
2234 | &detachlist, "detach ", 0, &cmdlist); | |
c906108c | 2235 | |
1bedd215 AC |
2236 | add_com ("disconnect", class_run, disconnect_command, _("\ |
2237 | Disconnect from a target.\n\ | |
6ad8ae5c | 2238 | The target will wait for another debugger to connect. Not available for\n\ |
1bedd215 | 2239 | all targets.")); |
6ad8ae5c | 2240 | |
1bedd215 AC |
2241 | add_com ("signal", class_run, signal_command, _("\ |
2242 | Continue program giving it signal specified by the argument.\n\ | |
2243 | An argument of \"0\" means continue program without giving it a signal.")); | |
c906108c | 2244 | |
1bedd215 AC |
2245 | add_com ("stepi", class_run, stepi_command, _("\ |
2246 | Step one instruction exactly.\n\ | |
2247 | Argument N means do this N times (or till program stops for another reason).")); | |
c906108c SS |
2248 | add_com_alias ("si", "stepi", class_alias, 0); |
2249 | ||
1bedd215 AC |
2250 | add_com ("nexti", class_run, nexti_command, _("\ |
2251 | Step one instruction, but proceed through subroutine calls.\n\ | |
2252 | Argument N means do this N times (or till program stops for another reason).")); | |
c906108c SS |
2253 | add_com_alias ("ni", "nexti", class_alias, 0); |
2254 | ||
1bedd215 AC |
2255 | add_com ("finish", class_run, finish_command, _("\ |
2256 | Execute until selected stack frame returns.\n\ | |
2257 | Upon return, the value returned is printed and put in the value history.")); | |
c906108c | 2258 | |
1bedd215 AC |
2259 | add_com ("next", class_run, next_command, _("\ |
2260 | Step program, proceeding through subroutine calls.\n\ | |
c906108c SS |
2261 | Like the \"step\" command as long as subroutine calls do not happen;\n\ |
2262 | when they do, the call is treated as one instruction.\n\ | |
1bedd215 | 2263 | Argument N means do this N times (or till program stops for another reason).")); |
c906108c SS |
2264 | add_com_alias ("n", "next", class_run, 1); |
2265 | if (xdb_commands) | |
c5aa993b | 2266 | add_com_alias ("S", "next", class_run, 1); |
c906108c | 2267 | |
1bedd215 AC |
2268 | add_com ("step", class_run, step_command, _("\ |
2269 | Step program until it reaches a different source line.\n\ | |
2270 | Argument N means do this N times (or till program stops for another reason).")); | |
c906108c SS |
2271 | add_com_alias ("s", "step", class_run, 1); |
2272 | ||
1bedd215 AC |
2273 | c = add_com ("until", class_run, until_command, _("\ |
2274 | Execute until the program reaches a source line greater than the current\n\ | |
2275 | or a specified location (same args as break command) within the current frame.")); | |
5ba2abeb | 2276 | set_cmd_completer (c, location_completer); |
c906108c | 2277 | add_com_alias ("u", "until", class_run, 1); |
c5aa993b | 2278 | |
1bedd215 AC |
2279 | c = add_com ("advance", class_run, advance_command, _("\ |
2280 | Continue the program up to the given location (same form as args for break command).\n\ | |
2281 | Execution will also stop upon exit from the current stack frame.")); | |
ae66c1fc EZ |
2282 | set_cmd_completer (c, location_completer); |
2283 | ||
1bedd215 AC |
2284 | c = add_com ("jump", class_run, jump_command, _("\ |
2285 | Continue program being debugged at specified line or address.\n\ | |
c906108c | 2286 | Give as argument either LINENUM or *ADDR, where ADDR is an expression\n\ |
1bedd215 | 2287 | for an address to start at.")); |
5ba2abeb | 2288 | set_cmd_completer (c, location_completer); |
c906108c | 2289 | |
b83266a0 | 2290 | if (xdb_commands) |
c94fdfd0 | 2291 | { |
1bedd215 AC |
2292 | c = add_com ("go", class_run, go_command, _("\ |
2293 | Usage: go <location>\n\ | |
c906108c SS |
2294 | Continue program being debugged, stopping at specified line or \n\ |
2295 | address.\n\ | |
2296 | Give as argument either LINENUM or *ADDR, where ADDR is an \n\ | |
2297 | expression for an address to start at.\n\ | |
1bedd215 | 2298 | This command is a combination of tbreak and jump.")); |
5ba2abeb | 2299 | set_cmd_completer (c, location_completer); |
c94fdfd0 | 2300 | } |
b83266a0 | 2301 | |
c906108c | 2302 | if (xdb_commands) |
c5aa993b | 2303 | add_com_alias ("g", "go", class_run, 1); |
c906108c | 2304 | |
1bedd215 AC |
2305 | add_com ("continue", class_run, continue_command, _("\ |
2306 | Continue program being debugged, after signal or breakpoint.\n\ | |
c906108c SS |
2307 | If proceeding from breakpoint, a number N may be used as an argument,\n\ |
2308 | which means to set the ignore count of that breakpoint to N - 1 (so that\n\ | |
1bedd215 | 2309 | the breakpoint won't break until the Nth time it is reached).")); |
c906108c SS |
2310 | add_com_alias ("c", "cont", class_run, 1); |
2311 | add_com_alias ("fg", "cont", class_run, 1); | |
2312 | ||
1bedd215 AC |
2313 | c = add_com ("run", class_run, run_command, _("\ |
2314 | Start debugged program. You may specify arguments to give it.\n\ | |
c906108c SS |
2315 | Args may include \"*\", or \"[...]\"; they are expanded using \"sh\".\n\ |
2316 | Input and output redirection with \">\", \"<\", or \">>\" are also allowed.\n\n\ | |
2317 | With no arguments, uses arguments last specified (with \"run\" or \"set args\").\n\ | |
2318 | To cancel previous arguments and run with no arguments,\n\ | |
1bedd215 | 2319 | use \"set args\" without arguments.")); |
5ba2abeb | 2320 | set_cmd_completer (c, filename_completer); |
c906108c SS |
2321 | add_com_alias ("r", "run", class_run, 1); |
2322 | if (xdb_commands) | |
2323 | add_com ("R", class_run, run_no_args_command, | |
1bedd215 | 2324 | _("Start debugged program with no arguments.")); |
c906108c | 2325 | |
1bedd215 | 2326 | c = add_com ("start", class_run, start_command, _("\ |
a4d5f2e0 JB |
2327 | Run the debugged program until the beginning of the main procedure.\n\ |
2328 | You may specify arguments to give to your program, just as with the\n\ | |
1bedd215 | 2329 | \"run\" command.")); |
a4d5f2e0 JB |
2330 | set_cmd_completer (c, filename_completer); |
2331 | ||
700b53b1 TT |
2332 | c = add_com ("interrupt", class_run, interrupt_target_command, |
2333 | _("Interrupt the execution of the debugged program.")); | |
2334 | set_cmd_async_ok (c); | |
43ff13b4 | 2335 | |
1bedd215 AC |
2336 | add_info ("registers", nofp_registers_info, _("\ |
2337 | List of integer registers and their contents, for selected stack frame.\n\ | |
2338 | Register name as argument means describe only that register.")); | |
7194c49b | 2339 | add_info_alias ("r", "registers", 1); |
c906108c SS |
2340 | |
2341 | if (xdb_commands) | |
1bedd215 AC |
2342 | add_com ("lr", class_info, nofp_registers_info, _("\ |
2343 | List of integer registers and their contents, for selected stack frame.\n\ | |
2344 | Register name as argument means describe only that register.")); | |
2345 | add_info ("all-registers", all_registers_info, _("\ | |
2346 | List of all registers and their contents, for selected stack frame.\n\ | |
2347 | Register name as argument means describe only that register.")); | |
c906108c SS |
2348 | |
2349 | add_info ("program", program_info, | |
1bedd215 | 2350 | _("Execution status of the program.")); |
c906108c SS |
2351 | |
2352 | add_info ("float", float_info, | |
1bedd215 | 2353 | _("Print the status of the floating point unit\n")); |
c906108c | 2354 | |
e76f1f2e | 2355 | add_info ("vector", vector_info, |
1bedd215 | 2356 | _("Print the status of the vector unit\n")); |
e76f1f2e | 2357 | |
c906108c SS |
2358 | inferior_environ = make_environ (); |
2359 | init_environ (inferior_environ); | |
2360 | } |