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