Commit | Line | Data |
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c906108c | 1 | /* Memory-access and commands for "inferior" process, for GDB. |
990a07ab | 2 | |
6aba47ca | 3 | Copyright (C) 1986, 1987, 1988, 1989, 1990, 1991, 1992, 1993, 1994, 1995, |
9b254dd1 DJ |
4 | 1996, 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005, 2006, 2007, |
5 | 2008 Free Software Foundation, Inc. | |
c906108c | 6 | |
c5aa993b | 7 | This file is part of GDB. |
c906108c | 8 | |
c5aa993b JM |
9 | This program is free software; you can redistribute it and/or modify |
10 | it under the terms of the GNU General Public License as published by | |
a9762ec7 | 11 | the Free Software Foundation; either version 3 of the License, or |
c5aa993b | 12 | (at your option) any later version. |
c906108c | 13 | |
c5aa993b JM |
14 | This program is distributed in the hope that it will be useful, |
15 | but WITHOUT ANY WARRANTY; without even the implied warranty of | |
16 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
17 | GNU General Public License for more details. | |
c906108c | 18 | |
c5aa993b | 19 | You should have received a copy of the GNU General Public License |
a9762ec7 | 20 | along with this program. If not, see <http://www.gnu.org/licenses/>. */ |
c906108c SS |
21 | |
22 | #include "defs.h" | |
23 | #include <signal.h> | |
24 | #include "gdb_string.h" | |
25 | #include "symtab.h" | |
26 | #include "gdbtypes.h" | |
27 | #include "frame.h" | |
28 | #include "inferior.h" | |
29 | #include "environ.h" | |
30 | #include "value.h" | |
31 | #include "gdbcmd.h" | |
1adeb98a | 32 | #include "symfile.h" |
c906108c SS |
33 | #include "gdbcore.h" |
34 | #include "target.h" | |
35 | #include "language.h" | |
36 | #include "symfile.h" | |
37 | #include "objfiles.h" | |
c94fdfd0 | 38 | #include "completer.h" |
8b93c638 | 39 | #include "ui-out.h" |
6426a772 | 40 | #include "event-top.h" |
96baa820 | 41 | #include "parser-defs.h" |
36160dc4 | 42 | #include "regcache.h" |
f9418c0f | 43 | #include "reggroups.h" |
fe898f56 | 44 | #include "block.h" |
a77053c2 | 45 | #include "solib.h" |
f9418c0f | 46 | #include <ctype.h> |
92ad9cd9 | 47 | #include "gdb_assert.h" |
281b533b | 48 | #include "observer.h" |
424163ea | 49 | #include "target-descriptions.h" |
ad842144 | 50 | #include "user-regs.h" |
32c1e744 | 51 | #include "exceptions.h" |
700b53b1 | 52 | #include "cli/cli-decode.h" |
a0ef4274 | 53 | #include "gdbthread.h" |
72cec141 | 54 | |
a58dd373 | 55 | /* Functions exported for general use, in inferior.h: */ |
c906108c | 56 | |
a14ed312 | 57 | void all_registers_info (char *, int); |
c906108c | 58 | |
a14ed312 | 59 | void registers_info (char *, int); |
c906108c | 60 | |
a58dd373 EZ |
61 | void nexti_command (char *, int); |
62 | ||
63 | void stepi_command (char *, int); | |
c906108c | 64 | |
a14ed312 | 65 | void continue_command (char *, int); |
c906108c | 66 | |
a58dd373 EZ |
67 | void interrupt_target_command (char *args, int from_tty); |
68 | ||
69 | /* Local functions: */ | |
70 | ||
71 | static void nofp_registers_info (char *, int); | |
72 | ||
c055b101 CV |
73 | static void print_return_value (struct type *func_type, |
74 | struct type *value_type); | |
11cf8741 | 75 | |
f107f563 VP |
76 | static void finish_command_continuation (struct continuation_arg *, |
77 | int error_p); | |
43ff13b4 | 78 | |
a14ed312 | 79 | static void until_next_command (int); |
c906108c | 80 | |
a14ed312 | 81 | static void until_command (char *, int); |
c906108c | 82 | |
a14ed312 | 83 | static void path_info (char *, int); |
c906108c | 84 | |
a14ed312 | 85 | static void path_command (char *, int); |
c906108c | 86 | |
a14ed312 | 87 | static void unset_command (char *, int); |
c906108c | 88 | |
a14ed312 | 89 | static void float_info (char *, int); |
c906108c | 90 | |
a14ed312 | 91 | static void detach_command (char *, int); |
c906108c | 92 | |
6ad8ae5c DJ |
93 | static void disconnect_command (char *, int); |
94 | ||
a14ed312 | 95 | static void unset_environment_command (char *, int); |
c906108c | 96 | |
a14ed312 | 97 | static void set_environment_command (char *, int); |
c906108c | 98 | |
a14ed312 | 99 | static void environment_info (char *, int); |
c906108c | 100 | |
a14ed312 | 101 | static void program_info (char *, int); |
c906108c | 102 | |
a14ed312 | 103 | static void finish_command (char *, int); |
c906108c | 104 | |
a14ed312 | 105 | static void signal_command (char *, int); |
c906108c | 106 | |
a14ed312 | 107 | static void jump_command (char *, int); |
c906108c | 108 | |
a14ed312 | 109 | static void step_1 (int, int, char *); |
611c83ae | 110 | static void step_once (int skip_subroutines, int single_inst, int count, int thread); |
f107f563 | 111 | static void step_1_continuation (struct continuation_arg *arg, int error_p); |
c906108c | 112 | |
a14ed312 | 113 | static void next_command (char *, int); |
c906108c | 114 | |
a14ed312 | 115 | static void step_command (char *, int); |
c906108c | 116 | |
a14ed312 | 117 | static void run_command (char *, int); |
c906108c | 118 | |
a14ed312 | 119 | static void run_no_args_command (char *args, int from_tty); |
392a587b | 120 | |
a14ed312 | 121 | static void go_command (char *line_no, int from_tty); |
392a587b | 122 | |
a14ed312 | 123 | static int strip_bg_char (char **); |
43ff13b4 | 124 | |
a14ed312 | 125 | void _initialize_infcmd (void); |
c906108c SS |
126 | |
127 | #define GO_USAGE "Usage: go <location>\n" | |
128 | ||
c906108c | 129 | #define ERROR_NO_INFERIOR \ |
8a3fe4f8 | 130 | if (!target_has_execution) error (_("The program is not being run.")); |
c906108c SS |
131 | |
132 | /* String containing arguments to give to the program, separated by spaces. | |
133 | Empty string (pointer to '\0') means no args. */ | |
134 | ||
135 | static char *inferior_args; | |
136 | ||
552c04a7 TT |
137 | /* The inferior arguments as a vector. If INFERIOR_ARGC is nonzero, |
138 | then we must compute INFERIOR_ARGS from this (via the target). */ | |
139 | ||
140 | static int inferior_argc; | |
141 | static char **inferior_argv; | |
142 | ||
c906108c SS |
143 | /* File name for default use for standard in/out in the inferior. */ |
144 | ||
3cb3b8df | 145 | static char *inferior_io_terminal; |
c906108c SS |
146 | |
147 | /* Pid of our debugged inferior, or 0 if no inferior now. | |
148 | Since various parts of infrun.c test this to see whether there is a program | |
149 | being debugged it should be nonzero (currently 3 is used) for remote | |
150 | debugging. */ | |
151 | ||
39f77062 | 152 | ptid_t inferior_ptid; |
c906108c SS |
153 | |
154 | /* Last signal that the inferior received (why it stopped). */ | |
155 | ||
156 | enum target_signal stop_signal; | |
157 | ||
158 | /* Address at which inferior stopped. */ | |
159 | ||
160 | CORE_ADDR stop_pc; | |
161 | ||
162 | /* Chain containing status of breakpoint(s) that we have stopped at. */ | |
163 | ||
164 | bpstat stop_bpstat; | |
165 | ||
166 | /* Flag indicating that a command has proceeded the inferior past the | |
167 | current breakpoint. */ | |
168 | ||
169 | int breakpoint_proceeded; | |
170 | ||
171 | /* Nonzero if stopped due to a step command. */ | |
172 | ||
173 | int stop_step; | |
174 | ||
175 | /* Nonzero if stopped due to completion of a stack dummy routine. */ | |
176 | ||
177 | int stop_stack_dummy; | |
178 | ||
179 | /* Nonzero if stopped due to a random (unexpected) signal in inferior | |
180 | process. */ | |
181 | ||
182 | int stopped_by_random_signal; | |
183 | ||
184 | /* Range to single step within. | |
185 | If this is nonzero, respond to a single-step signal | |
186 | by continuing to step if the pc is in this range. */ | |
187 | ||
c5aa993b JM |
188 | CORE_ADDR step_range_start; /* Inclusive */ |
189 | CORE_ADDR step_range_end; /* Exclusive */ | |
c906108c SS |
190 | |
191 | /* Stack frame address as of when stepping command was issued. | |
192 | This is how we know when we step into a subroutine call, | |
193 | and how to set the frame for the breakpoint used to step out. */ | |
194 | ||
aa0cd9c1 | 195 | struct frame_id step_frame_id; |
c906108c | 196 | |
5fbbeb29 | 197 | enum step_over_calls_kind step_over_calls; |
c906108c SS |
198 | |
199 | /* If stepping, nonzero means step count is > 1 | |
200 | so don't print frame next time inferior stops | |
201 | if it stops due to stepping. */ | |
202 | ||
203 | int step_multi; | |
204 | ||
205 | /* Environment to use for running inferior, | |
206 | in format described in environ.h. */ | |
207 | ||
1bf1958d | 208 | struct gdb_environ *inferior_environ; |
c906108c | 209 | \f |
07091751 FN |
210 | /* Accessor routines. */ |
211 | ||
3cb3b8df BR |
212 | void |
213 | set_inferior_io_terminal (const char *terminal_name) | |
214 | { | |
215 | if (inferior_io_terminal) | |
216 | xfree (inferior_io_terminal); | |
217 | ||
218 | if (!terminal_name) | |
219 | inferior_io_terminal = NULL; | |
220 | else | |
221 | inferior_io_terminal = savestring (terminal_name, strlen (terminal_name)); | |
222 | } | |
223 | ||
224 | const char * | |
225 | get_inferior_io_terminal (void) | |
226 | { | |
227 | return inferior_io_terminal; | |
228 | } | |
229 | ||
07091751 FN |
230 | char * |
231 | get_inferior_args (void) | |
232 | { | |
552c04a7 TT |
233 | if (inferior_argc != 0) |
234 | { | |
235 | char *n, *old; | |
236 | ||
237 | n = gdbarch_construct_inferior_arguments (current_gdbarch, | |
238 | inferior_argc, inferior_argv); | |
239 | old = set_inferior_args (n); | |
240 | xfree (old); | |
241 | } | |
242 | ||
243 | if (inferior_args == NULL) | |
244 | inferior_args = xstrdup (""); | |
245 | ||
07091751 FN |
246 | return inferior_args; |
247 | } | |
248 | ||
249 | char * | |
250 | set_inferior_args (char *newargs) | |
251 | { | |
252 | char *saved_args = inferior_args; | |
253 | ||
254 | inferior_args = newargs; | |
552c04a7 TT |
255 | inferior_argc = 0; |
256 | inferior_argv = 0; | |
07091751 FN |
257 | |
258 | return saved_args; | |
259 | } | |
c5aa993b | 260 | |
552c04a7 TT |
261 | void |
262 | set_inferior_args_vector (int argc, char **argv) | |
263 | { | |
264 | inferior_argc = argc; | |
265 | inferior_argv = argv; | |
266 | } | |
267 | ||
268 | /* Notice when `set args' is run. */ | |
269 | static void | |
270 | notice_args_set (char *args, int from_tty, struct cmd_list_element *c) | |
271 | { | |
272 | inferior_argc = 0; | |
273 | inferior_argv = 0; | |
274 | } | |
275 | ||
276 | /* Notice when `show args' is run. */ | |
277 | static void | |
b4b4ac0b AC |
278 | notice_args_read (struct ui_file *file, int from_tty, |
279 | struct cmd_list_element *c, const char *value) | |
552c04a7 | 280 | { |
258c00cc TT |
281 | /* Note that we ignore the passed-in value in favor of computing it |
282 | directly. */ | |
283 | deprecated_show_value_hack (file, from_tty, c, get_inferior_args ()); | |
552c04a7 TT |
284 | } |
285 | ||
c2a727fa TT |
286 | \f |
287 | /* Compute command-line string given argument vector. This does the | |
288 | same shell processing as fork_inferior. */ | |
c2a727fa TT |
289 | char * |
290 | construct_inferior_arguments (struct gdbarch *gdbarch, int argc, char **argv) | |
291 | { | |
292 | char *result; | |
293 | ||
294 | if (STARTUP_WITH_SHELL) | |
295 | { | |
296 | /* This holds all the characters considered special to the | |
297 | typical Unix shells. We include `^' because the SunOS | |
298 | /bin/sh treats it as a synonym for `|'. */ | |
299 | char *special = "\"!#$&*()\\|[]{}<>?'\"`~^; \t\n"; | |
300 | int i; | |
301 | int length = 0; | |
302 | char *out, *cp; | |
303 | ||
304 | /* We over-compute the size. It shouldn't matter. */ | |
305 | for (i = 0; i < argc; ++i) | |
03c6228e | 306 | length += 2 * strlen (argv[i]) + 1 + 2 * (argv[i][0] == '\0'); |
c2a727fa TT |
307 | |
308 | result = (char *) xmalloc (length); | |
309 | out = result; | |
310 | ||
311 | for (i = 0; i < argc; ++i) | |
312 | { | |
313 | if (i > 0) | |
314 | *out++ = ' '; | |
315 | ||
03c6228e AS |
316 | /* Need to handle empty arguments specially. */ |
317 | if (argv[i][0] == '\0') | |
c2a727fa | 318 | { |
03c6228e AS |
319 | *out++ = '\''; |
320 | *out++ = '\''; | |
321 | } | |
322 | else | |
323 | { | |
324 | for (cp = argv[i]; *cp; ++cp) | |
325 | { | |
326 | if (strchr (special, *cp) != NULL) | |
327 | *out++ = '\\'; | |
328 | *out++ = *cp; | |
329 | } | |
c2a727fa TT |
330 | } |
331 | } | |
332 | *out = '\0'; | |
333 | } | |
334 | else | |
335 | { | |
336 | /* In this case we can't handle arguments that contain spaces, | |
337 | tabs, or newlines -- see breakup_args(). */ | |
338 | int i; | |
339 | int length = 0; | |
340 | ||
341 | for (i = 0; i < argc; ++i) | |
342 | { | |
343 | char *cp = strchr (argv[i], ' '); | |
344 | if (cp == NULL) | |
345 | cp = strchr (argv[i], '\t'); | |
346 | if (cp == NULL) | |
347 | cp = strchr (argv[i], '\n'); | |
348 | if (cp != NULL) | |
8a3fe4f8 | 349 | error (_("can't handle command-line argument containing whitespace")); |
c2a727fa TT |
350 | length += strlen (argv[i]) + 1; |
351 | } | |
352 | ||
353 | result = (char *) xmalloc (length); | |
354 | result[0] = '\0'; | |
355 | for (i = 0; i < argc; ++i) | |
356 | { | |
357 | if (i > 0) | |
358 | strcat (result, " "); | |
359 | strcat (result, argv[i]); | |
360 | } | |
361 | } | |
362 | ||
363 | return result; | |
364 | } | |
552c04a7 TT |
365 | \f |
366 | ||
43ff13b4 JM |
367 | /* This function detects whether or not a '&' character (indicating |
368 | background execution) has been added as *the last* of the arguments ARGS | |
369 | of a command. If it has, it removes it and returns 1. Otherwise it | |
370 | does nothing and returns 0. */ | |
c5aa993b | 371 | static int |
fba45db2 | 372 | strip_bg_char (char **args) |
43ff13b4 JM |
373 | { |
374 | char *p = NULL; | |
c5aa993b | 375 | |
9846de1b | 376 | p = strchr (*args, '&'); |
c5aa993b | 377 | |
9846de1b | 378 | if (p) |
43ff13b4 JM |
379 | { |
380 | if (p == (*args + strlen (*args) - 1)) | |
381 | { | |
c5aa993b | 382 | if (strlen (*args) > 1) |
43ff13b4 JM |
383 | { |
384 | do | |
385 | p--; | |
386 | while (*p == ' ' || *p == '\t'); | |
387 | *(p + 1) = '\0'; | |
388 | } | |
389 | else | |
390 | *args = 0; | |
391 | return 1; | |
392 | } | |
393 | } | |
394 | return 0; | |
395 | } | |
396 | ||
c906108c | 397 | void |
fba45db2 | 398 | tty_command (char *file, int from_tty) |
c906108c SS |
399 | { |
400 | if (file == 0) | |
e2e0b3e5 | 401 | error_no_arg (_("terminal name for running target process")); |
c906108c | 402 | |
3cb3b8df | 403 | set_inferior_io_terminal (file); |
c906108c SS |
404 | } |
405 | ||
281b533b DJ |
406 | /* Common actions to take after creating any sort of inferior, by any |
407 | means (running, attaching, connecting, et cetera). The target | |
408 | should be stopped. */ | |
409 | ||
410 | void | |
411 | post_create_inferior (struct target_ops *target, int from_tty) | |
412 | { | |
b79599ff DP |
413 | /* Be sure we own the terminal in case write operations are performed. */ |
414 | target_terminal_ours (); | |
415 | ||
424163ea DJ |
416 | /* If the target hasn't taken care of this already, do it now. |
417 | Targets which need to access registers during to_open, | |
418 | to_create_inferior, or to_attach should do it earlier; but many | |
419 | don't need to. */ | |
420 | target_find_description (); | |
421 | ||
9353355f DJ |
422 | if (exec_bfd) |
423 | { | |
424 | /* Sometimes the platform-specific hook loads initial shared | |
425 | libraries, and sometimes it doesn't. Try to do so first, so | |
de1b3c3d PA |
426 | that we can add them with the correct value for FROM_TTY. |
427 | If we made all the inferior hook methods consistent, | |
428 | this call could be removed. */ | |
9353355f DJ |
429 | #ifdef SOLIB_ADD |
430 | SOLIB_ADD (NULL, from_tty, target, auto_solib_add); | |
431 | #else | |
432 | solib_add (NULL, from_tty, target, auto_solib_add); | |
433 | #endif | |
434 | ||
435 | /* Create the hooks to handle shared library load and unload | |
436 | events. */ | |
437 | #ifdef SOLIB_CREATE_INFERIOR_HOOK | |
37706b70 | 438 | SOLIB_CREATE_INFERIOR_HOOK (PIDGET (inferior_ptid)); |
9353355f DJ |
439 | #else |
440 | solib_create_inferior_hook (); | |
441 | #endif | |
9353355f DJ |
442 | } |
443 | ||
281b533b DJ |
444 | observer_notify_inferior_created (target, from_tty); |
445 | } | |
446 | ||
a4d5f2e0 JB |
447 | /* Kill the inferior if already running. This function is designed |
448 | to be called when we are about to start the execution of the program | |
449 | from the beginning. Ask the user to confirm that he wants to restart | |
450 | the program being debugged when FROM_TTY is non-null. */ | |
c906108c | 451 | |
8edfe269 | 452 | static void |
a4d5f2e0 JB |
453 | kill_if_already_running (int from_tty) |
454 | { | |
39f77062 | 455 | if (! ptid_equal (inferior_ptid, null_ptid) && target_has_execution) |
c906108c | 456 | { |
8edfe269 DJ |
457 | /* Bail out before killing the program if we will not be able to |
458 | restart it. */ | |
459 | target_require_runnable (); | |
460 | ||
adf40b2e JM |
461 | if (from_tty |
462 | && !query ("The program being debugged has been started already.\n\ | |
c906108c | 463 | Start it from the beginning? ")) |
8a3fe4f8 | 464 | error (_("Program not restarted.")); |
c906108c | 465 | target_kill (); |
e85a822c | 466 | no_shared_libraries (NULL, from_tty); |
c906108c SS |
467 | init_wait_for_inferior (); |
468 | } | |
a4d5f2e0 JB |
469 | } |
470 | ||
f67a969f JB |
471 | /* Implement the "run" command. If TBREAK_AT_MAIN is set, then insert |
472 | a temporary breakpoint at the begining of the main program before | |
473 | running the program. */ | |
474 | ||
a4d5f2e0 | 475 | static void |
f67a969f | 476 | run_command_1 (char *args, int from_tty, int tbreak_at_main) |
a4d5f2e0 JB |
477 | { |
478 | char *exec_file; | |
c906108c | 479 | |
a4d5f2e0 JB |
480 | dont_repeat (); |
481 | ||
482 | kill_if_already_running (from_tty); | |
c906108c SS |
483 | clear_breakpoint_hit_counts (); |
484 | ||
fd79ecee DJ |
485 | /* Clean up any leftovers from other runs. Some other things from |
486 | this function should probably be moved into target_pre_inferior. */ | |
487 | target_pre_inferior (from_tty); | |
488 | ||
c906108c SS |
489 | /* Purge old solib objfiles. */ |
490 | objfile_purge_solibs (); | |
491 | ||
615b9dba | 492 | clear_solib (); |
c906108c | 493 | |
39ad761d JB |
494 | /* The comment here used to read, "The exec file is re-read every |
495 | time we do a generic_mourn_inferior, so we just have to worry | |
496 | about the symbol file." The `generic_mourn_inferior' function | |
497 | gets called whenever the program exits. However, suppose the | |
498 | program exits, and *then* the executable file changes? We need | |
499 | to check again here. Since reopen_exec_file doesn't do anything | |
500 | if the timestamp hasn't changed, I don't see the harm. */ | |
501 | reopen_exec_file (); | |
c906108c SS |
502 | reread_symbols (); |
503 | ||
f67a969f JB |
504 | /* Insert the temporary breakpoint if a location was specified. */ |
505 | if (tbreak_at_main) | |
506 | tbreak_command (main_name (), 0); | |
507 | ||
39ad761d JB |
508 | exec_file = (char *) get_exec_file (0); |
509 | ||
c906108c SS |
510 | /* We keep symbols from add-symbol-file, on the grounds that the |
511 | user might want to add some symbols before running the program | |
512 | (right?). But sometimes (dynamic loading where the user manually | |
513 | introduces the new symbols with add-symbol-file), the code which | |
514 | the symbols describe does not persist between runs. Currently | |
515 | the user has to manually nuke all symbols between runs if they | |
516 | want them to go away (PR 2207). This is probably reasonable. */ | |
517 | ||
43ff13b4 | 518 | if (!args) |
6426a772 | 519 | { |
362646f5 | 520 | if (target_can_async_p ()) |
6426a772 JM |
521 | async_disable_stdin (); |
522 | } | |
43ff13b4 | 523 | else |
c906108c | 524 | { |
43ff13b4 JM |
525 | int async_exec = strip_bg_char (&args); |
526 | ||
527 | /* If we get a request for running in the bg but the target | |
528 | doesn't support it, error out. */ | |
362646f5 | 529 | if (async_exec && !target_can_async_p ()) |
8a3fe4f8 | 530 | error (_("Asynchronous execution not supported on this target.")); |
43ff13b4 JM |
531 | |
532 | /* If we don't get a request of running in the bg, then we need | |
c5aa993b | 533 | to simulate synchronous (fg) execution. */ |
362646f5 | 534 | if (!async_exec && target_can_async_p ()) |
43ff13b4 JM |
535 | { |
536 | /* Simulate synchronous execution */ | |
6426a772 | 537 | async_disable_stdin (); |
43ff13b4 JM |
538 | } |
539 | ||
540 | /* If there were other args, beside '&', process them. */ | |
541 | if (args) | |
542 | { | |
07091751 FN |
543 | char *old_args = set_inferior_args (xstrdup (args)); |
544 | xfree (old_args); | |
43ff13b4 | 545 | } |
c906108c SS |
546 | } |
547 | ||
548 | if (from_tty) | |
549 | { | |
8b93c638 JM |
550 | ui_out_field_string (uiout, NULL, "Starting program"); |
551 | ui_out_text (uiout, ": "); | |
552 | if (exec_file) | |
553 | ui_out_field_string (uiout, "execfile", exec_file); | |
554 | ui_out_spaces (uiout, 1); | |
552c04a7 TT |
555 | /* We call get_inferior_args() because we might need to compute |
556 | the value now. */ | |
557 | ui_out_field_string (uiout, "infargs", get_inferior_args ()); | |
8b93c638 JM |
558 | ui_out_text (uiout, "\n"); |
559 | ui_out_flush (uiout); | |
c906108c SS |
560 | } |
561 | ||
552c04a7 TT |
562 | /* We call get_inferior_args() because we might need to compute |
563 | the value now. */ | |
564 | target_create_inferior (exec_file, get_inferior_args (), | |
c27cda74 | 565 | environ_vector (inferior_environ), from_tty); |
281b533b | 566 | |
de1b3c3d PA |
567 | /* Pass zero for FROM_TTY, because at this point the "run" command |
568 | has done its thing; now we are setting up the running program. */ | |
569 | post_create_inferior (¤t_target, 0); | |
281b533b DJ |
570 | |
571 | /* Start the target running. */ | |
572 | proceed ((CORE_ADDR) -1, TARGET_SIGNAL_0, 0); | |
c906108c SS |
573 | } |
574 | ||
575 | ||
f67a969f JB |
576 | static void |
577 | run_command (char *args, int from_tty) | |
578 | { | |
579 | run_command_1 (args, from_tty, 0); | |
580 | } | |
581 | ||
c906108c | 582 | static void |
fba45db2 | 583 | run_no_args_command (char *args, int from_tty) |
c906108c | 584 | { |
07091751 FN |
585 | char *old_args = set_inferior_args (xstrdup ("")); |
586 | xfree (old_args); | |
c906108c | 587 | } |
c906108c | 588 | \f |
c5aa993b | 589 | |
a4d5f2e0 JB |
590 | /* Start the execution of the program up until the beginning of the main |
591 | program. */ | |
592 | ||
593 | static void | |
594 | start_command (char *args, int from_tty) | |
595 | { | |
596 | /* Some languages such as Ada need to search inside the program | |
597 | minimal symbols for the location where to put the temporary | |
598 | breakpoint before starting. */ | |
599 | if (!have_minimal_symbols ()) | |
8a3fe4f8 | 600 | error (_("No symbol table loaded. Use the \"file\" command.")); |
a4d5f2e0 | 601 | |
f67a969f JB |
602 | /* Run the program until reaching the main procedure... */ |
603 | run_command_1 (args, from_tty, 1); | |
a4d5f2e0 JB |
604 | } |
605 | ||
c906108c | 606 | void |
fba45db2 | 607 | continue_command (char *proc_count_exp, int from_tty) |
c906108c | 608 | { |
c5aa993b | 609 | int async_exec = 0; |
c906108c SS |
610 | ERROR_NO_INFERIOR; |
611 | ||
43ff13b4 JM |
612 | /* Find out whether we must run in the background. */ |
613 | if (proc_count_exp != NULL) | |
614 | async_exec = strip_bg_char (&proc_count_exp); | |
615 | ||
616 | /* If we must run in the background, but the target can't do it, | |
617 | error out. */ | |
362646f5 | 618 | if (async_exec && !target_can_async_p ()) |
8a3fe4f8 | 619 | error (_("Asynchronous execution not supported on this target.")); |
43ff13b4 JM |
620 | |
621 | /* If we are not asked to run in the bg, then prepare to run in the | |
622 | foreground, synchronously. */ | |
362646f5 | 623 | if (!async_exec && target_can_async_p ()) |
c5aa993b | 624 | { |
43ff13b4 | 625 | /* Simulate synchronous execution */ |
6426a772 | 626 | async_disable_stdin (); |
43ff13b4 | 627 | } |
c906108c | 628 | |
43ff13b4 JM |
629 | /* If have argument (besides '&'), set proceed count of breakpoint |
630 | we stopped at. */ | |
c906108c SS |
631 | if (proc_count_exp != NULL) |
632 | { | |
633 | bpstat bs = stop_bpstat; | |
8671a17b PA |
634 | int num, stat; |
635 | int stopped = 0; | |
636 | ||
637 | while ((stat = bpstat_num (&bs, &num)) != 0) | |
638 | if (stat > 0) | |
639 | { | |
640 | set_ignore_count (num, | |
641 | parse_and_eval_long (proc_count_exp) - 1, | |
642 | from_tty); | |
643 | /* set_ignore_count prints a message ending with a period. | |
644 | So print two spaces before "Continuing.". */ | |
645 | if (from_tty) | |
646 | printf_filtered (" "); | |
647 | stopped = 1; | |
648 | } | |
649 | ||
650 | if (!stopped && from_tty) | |
c906108c SS |
651 | { |
652 | printf_filtered | |
653 | ("Not stopped at any breakpoint; argument ignored.\n"); | |
654 | } | |
c906108c SS |
655 | } |
656 | ||
657 | if (from_tty) | |
a3f17187 | 658 | printf_filtered (_("Continuing.\n")); |
c906108c SS |
659 | |
660 | clear_proceed_status (); | |
661 | ||
2acceee2 | 662 | proceed ((CORE_ADDR) -1, TARGET_SIGNAL_DEFAULT, 0); |
c906108c SS |
663 | } |
664 | \f | |
665 | /* Step until outside of current statement. */ | |
666 | ||
c906108c | 667 | static void |
fba45db2 | 668 | step_command (char *count_string, int from_tty) |
c906108c SS |
669 | { |
670 | step_1 (0, 0, count_string); | |
671 | } | |
672 | ||
673 | /* Likewise, but skip over subroutine calls as if single instructions. */ | |
674 | ||
c906108c | 675 | static void |
fba45db2 | 676 | next_command (char *count_string, int from_tty) |
c906108c SS |
677 | { |
678 | step_1 (1, 0, count_string); | |
679 | } | |
680 | ||
681 | /* Likewise, but step only one instruction. */ | |
682 | ||
c906108c | 683 | void |
fba45db2 | 684 | stepi_command (char *count_string, int from_tty) |
c906108c SS |
685 | { |
686 | step_1 (0, 1, count_string); | |
687 | } | |
688 | ||
c906108c | 689 | void |
fba45db2 | 690 | nexti_command (char *count_string, int from_tty) |
c906108c SS |
691 | { |
692 | step_1 (1, 1, count_string); | |
693 | } | |
694 | ||
74b7792f | 695 | static void |
611c83ae | 696 | delete_longjmp_breakpoint_cleanup (void *arg) |
74b7792f | 697 | { |
611c83ae PA |
698 | int thread = * (int *) arg; |
699 | delete_longjmp_breakpoint (thread); | |
74b7792f AC |
700 | } |
701 | ||
c906108c | 702 | static void |
fba45db2 | 703 | step_1 (int skip_subroutines, int single_inst, char *count_string) |
c906108c | 704 | { |
52f0bd74 | 705 | int count = 1; |
c906108c | 706 | struct frame_info *frame; |
f107f563 | 707 | struct cleanup *cleanups = make_cleanup (null_cleanup, NULL); |
43ff13b4 | 708 | int async_exec = 0; |
b3dc826b | 709 | int thread = -1; |
c5aa993b | 710 | |
c906108c | 711 | ERROR_NO_INFERIOR; |
43ff13b4 JM |
712 | |
713 | if (count_string) | |
714 | async_exec = strip_bg_char (&count_string); | |
c5aa993b | 715 | |
43ff13b4 JM |
716 | /* If we get a request for running in the bg but the target |
717 | doesn't support it, error out. */ | |
362646f5 | 718 | if (async_exec && !target_can_async_p ()) |
8a3fe4f8 | 719 | error (_("Asynchronous execution not supported on this target.")); |
43ff13b4 JM |
720 | |
721 | /* If we don't get a request of running in the bg, then we need | |
722 | to simulate synchronous (fg) execution. */ | |
362646f5 | 723 | if (!async_exec && target_can_async_p ()) |
43ff13b4 JM |
724 | { |
725 | /* Simulate synchronous execution */ | |
6426a772 | 726 | async_disable_stdin (); |
43ff13b4 JM |
727 | } |
728 | ||
bb518678 | 729 | count = count_string ? parse_and_eval_long (count_string) : 1; |
c906108c | 730 | |
c5aa993b | 731 | if (!single_inst || skip_subroutines) /* leave si command alone */ |
c906108c | 732 | { |
611c83ae | 733 | if (in_thread_list (inferior_ptid)) |
b3dc826b | 734 | thread = pid_to_thread_id (inferior_ptid); |
611c83ae PA |
735 | |
736 | set_longjmp_breakpoint (); | |
737 | ||
b3dc826b | 738 | make_cleanup (delete_longjmp_breakpoint_cleanup, &thread); |
c2d11a7d JM |
739 | } |
740 | ||
741 | /* In synchronous case, all is well, just use the regular for loop. */ | |
362646f5 | 742 | if (!target_can_async_p ()) |
c2d11a7d JM |
743 | { |
744 | for (; count > 0; count--) | |
745 | { | |
746 | clear_proceed_status (); | |
747 | ||
748 | frame = get_current_frame (); | |
749 | if (!frame) /* Avoid coredump here. Why tho? */ | |
8a3fe4f8 | 750 | error (_("No current frame")); |
aa0cd9c1 | 751 | step_frame_id = get_frame_id (frame); |
c2d11a7d JM |
752 | |
753 | if (!single_inst) | |
754 | { | |
755 | find_pc_line_pc_range (stop_pc, &step_range_start, &step_range_end); | |
756 | if (step_range_end == 0) | |
757 | { | |
758 | char *name; | |
759 | if (find_pc_partial_function (stop_pc, &name, &step_range_start, | |
760 | &step_range_end) == 0) | |
8a3fe4f8 | 761 | error (_("Cannot find bounds of current function")); |
c2d11a7d JM |
762 | |
763 | target_terminal_ours (); | |
a3f17187 | 764 | printf_filtered (_("\ |
c2d11a7d | 765 | Single stepping until exit from function %s, \n\ |
a3f17187 | 766 | which has no line number information.\n"), name); |
c2d11a7d JM |
767 | } |
768 | } | |
769 | else | |
770 | { | |
771 | /* Say we are stepping, but stop after one insn whatever it does. */ | |
772 | step_range_start = step_range_end = 1; | |
773 | if (!skip_subroutines) | |
774 | /* It is stepi. | |
775 | Don't step over function calls, not even to functions lacking | |
776 | line numbers. */ | |
5fbbeb29 | 777 | step_over_calls = STEP_OVER_NONE; |
c2d11a7d JM |
778 | } |
779 | ||
780 | if (skip_subroutines) | |
5fbbeb29 | 781 | step_over_calls = STEP_OVER_ALL; |
c2d11a7d JM |
782 | |
783 | step_multi = (count > 1); | |
784 | proceed ((CORE_ADDR) -1, TARGET_SIGNAL_DEFAULT, 1); | |
785 | ||
786 | if (!stop_step) | |
787 | break; | |
c2d11a7d JM |
788 | } |
789 | ||
f107f563 | 790 | do_cleanups (cleanups); |
c2d11a7d JM |
791 | return; |
792 | } | |
793 | /* In case of asynchronous target things get complicated, do only | |
794 | one step for now, before returning control to the event loop. Let | |
795 | the continuation figure out how many other steps we need to do, | |
796 | and handle them one at the time, through step_once(). */ | |
797 | else | |
798 | { | |
b3dc826b | 799 | step_once (skip_subroutines, single_inst, count, thread); |
611c83ae | 800 | /* We are running, and the continuation is installed. It will |
f107f563 VP |
801 | disable the longjmp breakpoint as appropriate. */ |
802 | discard_cleanups (cleanups); | |
c906108c | 803 | } |
c2d11a7d | 804 | } |
c906108c | 805 | |
c2d11a7d JM |
806 | /* Called after we are done with one step operation, to check whether |
807 | we need to step again, before we print the prompt and return control | |
808 | to the user. If count is > 1, we will need to do one more call to | |
809 | proceed(), via step_once(). Basically it is like step_once and | |
810 | step_1_continuation are co-recursive. */ | |
811 | static void | |
f107f563 | 812 | step_1_continuation (struct continuation_arg *arg, int error_p) |
c2d11a7d | 813 | { |
f13468d9 VP |
814 | int count; |
815 | int skip_subroutines; | |
816 | int single_inst; | |
611c83ae | 817 | int thread; |
f107f563 | 818 | |
f13468d9 VP |
819 | skip_subroutines = arg->data.integer; |
820 | single_inst = arg->next->data.integer; | |
821 | count = arg->next->next->data.integer; | |
611c83ae | 822 | thread = arg->next->next->next->data.integer; |
f13468d9 VP |
823 | |
824 | if (error_p || !step_multi || !stop_step) | |
825 | { | |
826 | /* We either hit an error, or stopped for some reason | |
827 | that is not stepping, or there are no further steps | |
828 | to make. Cleanup. */ | |
829 | if (!single_inst || skip_subroutines) | |
611c83ae | 830 | delete_longjmp_breakpoint (thread); |
f13468d9 | 831 | step_multi = 0; |
f107f563 | 832 | } |
f13468d9 | 833 | else |
611c83ae | 834 | step_once (skip_subroutines, single_inst, count - 1, thread); |
c2d11a7d JM |
835 | } |
836 | ||
837 | /* Do just one step operation. If count >1 we will have to set up a | |
838 | continuation to be done after the target stops (after this one | |
839 | step). This is useful to implement the 'step n' kind of commands, in | |
840 | case of asynchronous targets. We had to split step_1 into two parts, | |
841 | one to be done before proceed() and one afterwards. This function is | |
842 | called in case of step n with n>1, after the first step operation has | |
843 | been completed.*/ | |
844 | static void | |
611c83ae | 845 | step_once (int skip_subroutines, int single_inst, int count, int thread) |
c2d11a7d | 846 | { |
0d06e24b JM |
847 | struct continuation_arg *arg1; |
848 | struct continuation_arg *arg2; | |
849 | struct continuation_arg *arg3; | |
611c83ae | 850 | struct continuation_arg *arg4; |
0d06e24b | 851 | struct frame_info *frame; |
c2d11a7d JM |
852 | |
853 | if (count > 0) | |
c906108c SS |
854 | { |
855 | clear_proceed_status (); | |
856 | ||
857 | frame = get_current_frame (); | |
c5aa993b | 858 | if (!frame) /* Avoid coredump here. Why tho? */ |
8a3fe4f8 | 859 | error (_("No current frame")); |
aa0cd9c1 | 860 | step_frame_id = get_frame_id (frame); |
c906108c | 861 | |
c5aa993b | 862 | if (!single_inst) |
c906108c SS |
863 | { |
864 | find_pc_line_pc_range (stop_pc, &step_range_start, &step_range_end); | |
5fbbeb29 CF |
865 | |
866 | /* If we have no line info, switch to stepi mode. */ | |
867 | if (step_range_end == 0 && step_stop_if_no_debug) | |
868 | { | |
869 | step_range_start = step_range_end = 1; | |
870 | } | |
871 | else if (step_range_end == 0) | |
c906108c SS |
872 | { |
873 | char *name; | |
874 | if (find_pc_partial_function (stop_pc, &name, &step_range_start, | |
875 | &step_range_end) == 0) | |
8a3fe4f8 | 876 | error (_("Cannot find bounds of current function")); |
c906108c SS |
877 | |
878 | target_terminal_ours (); | |
a3f17187 | 879 | printf_filtered (_("\ |
c906108c | 880 | Single stepping until exit from function %s, \n\ |
a3f17187 | 881 | which has no line number information.\n"), name); |
c906108c SS |
882 | } |
883 | } | |
884 | else | |
885 | { | |
886 | /* Say we are stepping, but stop after one insn whatever it does. */ | |
887 | step_range_start = step_range_end = 1; | |
888 | if (!skip_subroutines) | |
889 | /* It is stepi. | |
890 | Don't step over function calls, not even to functions lacking | |
891 | line numbers. */ | |
5fbbeb29 | 892 | step_over_calls = STEP_OVER_NONE; |
c906108c SS |
893 | } |
894 | ||
895 | if (skip_subroutines) | |
5fbbeb29 | 896 | step_over_calls = STEP_OVER_ALL; |
c906108c SS |
897 | |
898 | step_multi = (count > 1); | |
f107f563 | 899 | proceed ((CORE_ADDR) -1, TARGET_SIGNAL_DEFAULT, 1); |
c2d11a7d JM |
900 | arg1 = |
901 | (struct continuation_arg *) xmalloc (sizeof (struct continuation_arg)); | |
902 | arg2 = | |
903 | (struct continuation_arg *) xmalloc (sizeof (struct continuation_arg)); | |
904 | arg3 = | |
905 | (struct continuation_arg *) xmalloc (sizeof (struct continuation_arg)); | |
611c83ae PA |
906 | arg4 = |
907 | (struct continuation_arg *) xmalloc (sizeof (struct continuation_arg)); | |
c2d11a7d | 908 | arg1->next = arg2; |
57e687d9 | 909 | arg1->data.integer = skip_subroutines; |
c2d11a7d | 910 | arg2->next = arg3; |
57e687d9 | 911 | arg2->data.integer = single_inst; |
611c83ae | 912 | arg3->next = arg4; |
57e687d9 | 913 | arg3->data.integer = count; |
611c83ae PA |
914 | arg4->next = NULL; |
915 | arg4->data.integer = thread; | |
c2d11a7d | 916 | add_intermediate_continuation (step_1_continuation, arg1); |
c906108c | 917 | } |
c906108c | 918 | } |
c2d11a7d | 919 | |
c906108c SS |
920 | \f |
921 | /* Continue program at specified address. */ | |
922 | ||
923 | static void | |
fba45db2 | 924 | jump_command (char *arg, int from_tty) |
c906108c | 925 | { |
52f0bd74 | 926 | CORE_ADDR addr; |
c906108c SS |
927 | struct symtabs_and_lines sals; |
928 | struct symtab_and_line sal; | |
929 | struct symbol *fn; | |
930 | struct symbol *sfn; | |
43ff13b4 | 931 | int async_exec = 0; |
c5aa993b | 932 | |
c906108c SS |
933 | ERROR_NO_INFERIOR; |
934 | ||
43ff13b4 JM |
935 | /* Find out whether we must run in the background. */ |
936 | if (arg != NULL) | |
937 | async_exec = strip_bg_char (&arg); | |
938 | ||
939 | /* If we must run in the background, but the target can't do it, | |
940 | error out. */ | |
362646f5 | 941 | if (async_exec && !target_can_async_p ()) |
8a3fe4f8 | 942 | error (_("Asynchronous execution not supported on this target.")); |
43ff13b4 | 943 | |
c906108c | 944 | if (!arg) |
e2e0b3e5 | 945 | error_no_arg (_("starting address")); |
c906108c SS |
946 | |
947 | sals = decode_line_spec_1 (arg, 1); | |
948 | if (sals.nelts != 1) | |
949 | { | |
8a3fe4f8 | 950 | error (_("Unreasonable jump request")); |
c906108c SS |
951 | } |
952 | ||
953 | sal = sals.sals[0]; | |
b8c9b27d | 954 | xfree (sals.sals); |
c906108c SS |
955 | |
956 | if (sal.symtab == 0 && sal.pc == 0) | |
8a3fe4f8 | 957 | error (_("No source file has been specified.")); |
c906108c | 958 | |
c5aa993b | 959 | resolve_sal_pc (&sal); /* May error out */ |
c906108c SS |
960 | |
961 | /* See if we are trying to jump to another function. */ | |
962 | fn = get_frame_function (get_current_frame ()); | |
963 | sfn = find_pc_function (sal.pc); | |
964 | if (fn != NULL && sfn != fn) | |
965 | { | |
966 | if (!query ("Line %d is not in `%s'. Jump anyway? ", sal.line, | |
de5ad195 | 967 | SYMBOL_PRINT_NAME (fn))) |
c906108c | 968 | { |
8a3fe4f8 | 969 | error (_("Not confirmed.")); |
c906108c SS |
970 | /* NOTREACHED */ |
971 | } | |
972 | } | |
973 | ||
c5aa993b | 974 | if (sfn != NULL) |
c906108c SS |
975 | { |
976 | fixup_symbol_section (sfn, 0); | |
c5aa993b | 977 | if (section_is_overlay (SYMBOL_BFD_SECTION (sfn)) && |
c906108c SS |
978 | !section_is_mapped (SYMBOL_BFD_SECTION (sfn))) |
979 | { | |
980 | if (!query ("WARNING!!! Destination is in unmapped overlay! Jump anyway? ")) | |
981 | { | |
8a3fe4f8 | 982 | error (_("Not confirmed.")); |
c906108c SS |
983 | /* NOTREACHED */ |
984 | } | |
985 | } | |
986 | } | |
987 | ||
c906108c SS |
988 | addr = sal.pc; |
989 | ||
990 | if (from_tty) | |
991 | { | |
a3f17187 | 992 | printf_filtered (_("Continuing at ")); |
ed49a04f | 993 | fputs_filtered (paddress (addr), gdb_stdout); |
c906108c SS |
994 | printf_filtered (".\n"); |
995 | } | |
996 | ||
89113898 PA |
997 | /* If we are not asked to run in the bg, then prepare to run in the |
998 | foreground, synchronously. */ | |
999 | if (!async_exec && target_can_async_p ()) | |
1000 | { | |
1001 | /* Simulate synchronous execution */ | |
1002 | async_disable_stdin (); | |
1003 | } | |
1004 | ||
c906108c SS |
1005 | clear_proceed_status (); |
1006 | proceed (addr, TARGET_SIGNAL_0, 0); | |
1007 | } | |
c906108c | 1008 | \f |
c5aa993b | 1009 | |
c906108c SS |
1010 | /* Go to line or address in current procedure */ |
1011 | static void | |
fba45db2 | 1012 | go_command (char *line_no, int from_tty) |
c906108c | 1013 | { |
c5aa993b | 1014 | if (line_no == (char *) NULL || !*line_no) |
b83266a0 | 1015 | printf_filtered (GO_USAGE); |
c906108c SS |
1016 | else |
1017 | { | |
b83266a0 SS |
1018 | tbreak_command (line_no, from_tty); |
1019 | jump_command (line_no, from_tty); | |
c906108c SS |
1020 | } |
1021 | } | |
c906108c | 1022 | \f |
c5aa993b | 1023 | |
c906108c SS |
1024 | /* Continue program giving it specified signal. */ |
1025 | ||
1026 | static void | |
fba45db2 | 1027 | signal_command (char *signum_exp, int from_tty) |
c906108c SS |
1028 | { |
1029 | enum target_signal oursig; | |
32c1e744 | 1030 | int async_exec = 0; |
c906108c SS |
1031 | |
1032 | dont_repeat (); /* Too dangerous. */ | |
1033 | ERROR_NO_INFERIOR; | |
1034 | ||
32c1e744 VP |
1035 | /* Find out whether we must run in the background. */ |
1036 | if (signum_exp != NULL) | |
1037 | async_exec = strip_bg_char (&signum_exp); | |
1038 | ||
1039 | /* If we must run in the background, but the target can't do it, | |
1040 | error out. */ | |
1041 | if (async_exec && !target_can_async_p ()) | |
1042 | error (_("Asynchronous execution not supported on this target.")); | |
1043 | ||
1044 | /* If we are not asked to run in the bg, then prepare to run in the | |
1045 | foreground, synchronously. */ | |
1046 | if (!async_exec && target_can_async_p ()) | |
1047 | { | |
1048 | /* Simulate synchronous execution. */ | |
1049 | async_disable_stdin (); | |
1050 | } | |
1051 | ||
c906108c | 1052 | if (!signum_exp) |
e2e0b3e5 | 1053 | error_no_arg (_("signal number")); |
c906108c SS |
1054 | |
1055 | /* It would be even slicker to make signal names be valid expressions, | |
1056 | (the type could be "enum $signal" or some such), then the user could | |
1057 | assign them to convenience variables. */ | |
1058 | oursig = target_signal_from_name (signum_exp); | |
1059 | ||
1060 | if (oursig == TARGET_SIGNAL_UNKNOWN) | |
1061 | { | |
1062 | /* No, try numeric. */ | |
bb518678 | 1063 | int num = parse_and_eval_long (signum_exp); |
c906108c SS |
1064 | |
1065 | if (num == 0) | |
1066 | oursig = TARGET_SIGNAL_0; | |
1067 | else | |
1068 | oursig = target_signal_from_command (num); | |
1069 | } | |
1070 | ||
1071 | if (from_tty) | |
1072 | { | |
1073 | if (oursig == TARGET_SIGNAL_0) | |
a3f17187 | 1074 | printf_filtered (_("Continuing with no signal.\n")); |
c906108c | 1075 | else |
a3f17187 | 1076 | printf_filtered (_("Continuing with signal %s.\n"), |
c906108c SS |
1077 | target_signal_to_name (oursig)); |
1078 | } | |
1079 | ||
1080 | clear_proceed_status (); | |
1081 | /* "signal 0" should not get stuck if we are stopped at a breakpoint. | |
1082 | FIXME: Neither should "signal foo" but when I tried passing | |
1083 | (CORE_ADDR)-1 unconditionally I got a testsuite failure which I haven't | |
1084 | tried to track down yet. */ | |
2acceee2 | 1085 | proceed (oursig == TARGET_SIGNAL_0 ? (CORE_ADDR) -1 : stop_pc, oursig, 0); |
c906108c SS |
1086 | } |
1087 | ||
c906108c SS |
1088 | /* Proceed until we reach a different source line with pc greater than |
1089 | our current one or exit the function. We skip calls in both cases. | |
1090 | ||
1091 | Note that eventually this command should probably be changed so | |
1092 | that only source lines are printed out when we hit the breakpoint | |
1093 | we set. This may involve changes to wait_for_inferior and the | |
1094 | proceed status code. */ | |
1095 | ||
c906108c | 1096 | static void |
fba45db2 | 1097 | until_next_command (int from_tty) |
c906108c SS |
1098 | { |
1099 | struct frame_info *frame; | |
1100 | CORE_ADDR pc; | |
1101 | struct symbol *func; | |
1102 | struct symtab_and_line sal; | |
c5aa993b | 1103 | |
c906108c SS |
1104 | clear_proceed_status (); |
1105 | ||
1106 | frame = get_current_frame (); | |
1107 | ||
1108 | /* Step until either exited from this function or greater | |
1109 | than the current line (if in symbolic section) or pc (if | |
1110 | not). */ | |
1111 | ||
1112 | pc = read_pc (); | |
1113 | func = find_pc_function (pc); | |
c5aa993b | 1114 | |
c906108c SS |
1115 | if (!func) |
1116 | { | |
1117 | struct minimal_symbol *msymbol = lookup_minimal_symbol_by_pc (pc); | |
c5aa993b | 1118 | |
c906108c | 1119 | if (msymbol == NULL) |
8a3fe4f8 | 1120 | error (_("Execution is not within a known function.")); |
c5aa993b | 1121 | |
c906108c SS |
1122 | step_range_start = SYMBOL_VALUE_ADDRESS (msymbol); |
1123 | step_range_end = pc; | |
1124 | } | |
1125 | else | |
1126 | { | |
1127 | sal = find_pc_line (pc, 0); | |
c5aa993b | 1128 | |
c906108c SS |
1129 | step_range_start = BLOCK_START (SYMBOL_BLOCK_VALUE (func)); |
1130 | step_range_end = sal.end; | |
1131 | } | |
c5aa993b | 1132 | |
5fbbeb29 | 1133 | step_over_calls = STEP_OVER_ALL; |
aa0cd9c1 | 1134 | step_frame_id = get_frame_id (frame); |
c906108c SS |
1135 | |
1136 | step_multi = 0; /* Only one call to proceed */ | |
c5aa993b | 1137 | |
2acceee2 | 1138 | proceed ((CORE_ADDR) -1, TARGET_SIGNAL_DEFAULT, 1); |
c906108c SS |
1139 | } |
1140 | ||
c5aa993b | 1141 | static void |
fba45db2 | 1142 | until_command (char *arg, int from_tty) |
c906108c | 1143 | { |
43ff13b4 JM |
1144 | int async_exec = 0; |
1145 | ||
c906108c | 1146 | if (!target_has_execution) |
8a3fe4f8 | 1147 | error (_("The program is not running.")); |
43ff13b4 JM |
1148 | |
1149 | /* Find out whether we must run in the background. */ | |
1150 | if (arg != NULL) | |
1151 | async_exec = strip_bg_char (&arg); | |
1152 | ||
1153 | /* If we must run in the background, but the target can't do it, | |
1154 | error out. */ | |
362646f5 | 1155 | if (async_exec && !target_can_async_p ()) |
8a3fe4f8 | 1156 | error (_("Asynchronous execution not supported on this target.")); |
43ff13b4 JM |
1157 | |
1158 | /* If we are not asked to run in the bg, then prepare to run in the | |
1159 | foreground, synchronously. */ | |
362646f5 | 1160 | if (!async_exec && target_can_async_p ()) |
c5aa993b | 1161 | { |
43ff13b4 | 1162 | /* Simulate synchronous execution */ |
6426a772 | 1163 | async_disable_stdin (); |
43ff13b4 JM |
1164 | } |
1165 | ||
c906108c | 1166 | if (arg) |
ae66c1fc | 1167 | until_break_command (arg, from_tty, 0); |
c906108c SS |
1168 | else |
1169 | until_next_command (from_tty); | |
1170 | } | |
ae66c1fc EZ |
1171 | |
1172 | static void | |
1173 | advance_command (char *arg, int from_tty) | |
1174 | { | |
1175 | int async_exec = 0; | |
1176 | ||
1177 | if (!target_has_execution) | |
8a3fe4f8 | 1178 | error (_("The program is not running.")); |
ae66c1fc EZ |
1179 | |
1180 | if (arg == NULL) | |
e2e0b3e5 | 1181 | error_no_arg (_("a location")); |
ae66c1fc EZ |
1182 | |
1183 | /* Find out whether we must run in the background. */ | |
1184 | if (arg != NULL) | |
1185 | async_exec = strip_bg_char (&arg); | |
1186 | ||
1187 | /* If we must run in the background, but the target can't do it, | |
1188 | error out. */ | |
362646f5 | 1189 | if (async_exec && !target_can_async_p ()) |
8a3fe4f8 | 1190 | error (_("Asynchronous execution not supported on this target.")); |
ae66c1fc EZ |
1191 | |
1192 | /* If we are not asked to run in the bg, then prepare to run in the | |
1193 | foreground, synchronously. */ | |
362646f5 | 1194 | if (!async_exec && target_can_async_p ()) |
ae66c1fc EZ |
1195 | { |
1196 | /* Simulate synchronous execution. */ | |
1197 | async_disable_stdin (); | |
1198 | } | |
1199 | ||
1200 | until_break_command (arg, from_tty, 1); | |
1201 | } | |
c906108c | 1202 | \f |
f941662f MK |
1203 | /* Print the result of a function at the end of a 'finish' command. */ |
1204 | ||
11cf8741 | 1205 | static void |
c055b101 | 1206 | print_return_value (struct type *func_type, struct type *value_type) |
11cf8741 | 1207 | { |
31db7b6c | 1208 | struct gdbarch *gdbarch = current_gdbarch; |
bb472c1e MK |
1209 | struct cleanup *old_chain; |
1210 | struct ui_stream *stb; | |
44e5158b AC |
1211 | struct value *value; |
1212 | ||
181fc57c | 1213 | CHECK_TYPEDEF (value_type); |
44e5158b | 1214 | gdb_assert (TYPE_CODE (value_type) != TYPE_CODE_VOID); |
11cf8741 | 1215 | |
92ad9cd9 AC |
1216 | /* FIXME: 2003-09-27: When returning from a nested inferior function |
1217 | call, it's possible (with no help from the architecture vector) | |
1218 | to locate and return/print a "struct return" value. This is just | |
1219 | a more complicated case of what is already being done in in the | |
1220 | inferior function call code. In fact, when inferior function | |
1221 | calls are made async, this will likely be made the norm. */ | |
31db7b6c | 1222 | |
c055b101 CV |
1223 | switch (gdbarch_return_value (gdbarch, func_type, value_type, |
1224 | NULL, NULL, NULL)) | |
44e5158b | 1225 | { |
750eb019 AC |
1226 | case RETURN_VALUE_REGISTER_CONVENTION: |
1227 | case RETURN_VALUE_ABI_RETURNS_ADDRESS: | |
181fc57c | 1228 | case RETURN_VALUE_ABI_PRESERVES_ADDRESS: |
44e5158b | 1229 | value = allocate_value (value_type); |
c055b101 | 1230 | gdbarch_return_value (gdbarch, func_type, value_type, stop_registers, |
990a07ab | 1231 | value_contents_raw (value), NULL); |
750eb019 AC |
1232 | break; |
1233 | case RETURN_VALUE_STRUCT_CONVENTION: | |
1234 | value = NULL; | |
1235 | break; | |
1236 | default: | |
e2e0b3e5 | 1237 | internal_error (__FILE__, __LINE__, _("bad switch")); |
44e5158b | 1238 | } |
bb472c1e | 1239 | |
31db7b6c MK |
1240 | if (value) |
1241 | { | |
1242 | /* Print it. */ | |
1d751abe PA |
1243 | stb = ui_out_stream_new (uiout); |
1244 | old_chain = make_cleanup_ui_out_stream_delete (stb); | |
31db7b6c MK |
1245 | ui_out_text (uiout, "Value returned is "); |
1246 | ui_out_field_fmt (uiout, "gdb-result-var", "$%d", | |
1247 | record_latest_value (value)); | |
1248 | ui_out_text (uiout, " = "); | |
1249 | value_print (value, stb->stream, 0, Val_no_prettyprint); | |
1250 | ui_out_field_stream (uiout, "return-value", stb); | |
1251 | ui_out_text (uiout, "\n"); | |
1d751abe | 1252 | do_cleanups (old_chain); |
31db7b6c MK |
1253 | } |
1254 | else | |
1255 | { | |
1256 | ui_out_text (uiout, "Value returned has type: "); | |
1d751abe PA |
1257 | ui_out_field_string (uiout, "return-type", TYPE_NAME (value_type)); |
1258 | ui_out_text (uiout, "."); | |
1259 | ui_out_text (uiout, " Cannot determine contents\n"); | |
31db7b6c | 1260 | } |
11cf8741 JM |
1261 | } |
1262 | ||
43ff13b4 | 1263 | /* Stuff that needs to be done by the finish command after the target |
f941662f MK |
1264 | has stopped. In asynchronous mode, we wait for the target to stop |
1265 | in the call to poll or select in the event loop, so it is | |
1266 | impossible to do all the stuff as part of the finish_command | |
1267 | function itself. The only chance we have to complete this command | |
1268 | is in fetch_inferior_event, which is called by the event loop as | |
1269 | soon as it detects that the target has stopped. This function is | |
1270 | called via the cmd_continuation pointer. */ | |
1271 | ||
1272 | static void | |
f107f563 | 1273 | finish_command_continuation (struct continuation_arg *arg, int error_p) |
43ff13b4 | 1274 | { |
52f0bd74 | 1275 | struct symbol *function; |
43ff13b4 | 1276 | struct breakpoint *breakpoint; |
0d06e24b | 1277 | struct cleanup *cleanups; |
c5aa993b | 1278 | |
57e687d9 | 1279 | breakpoint = (struct breakpoint *) arg->data.pointer; |
f941662f MK |
1280 | function = (struct symbol *) arg->next->data.pointer; |
1281 | cleanups = (struct cleanup *) arg->next->next->data.pointer; | |
43ff13b4 | 1282 | |
f107f563 | 1283 | if (!error_p) |
43ff13b4 | 1284 | { |
f107f563 VP |
1285 | if (bpstat_find_breakpoint (stop_bpstat, breakpoint) != NULL |
1286 | && function != NULL) | |
1287 | { | |
1288 | struct type *value_type; | |
1289 | ||
1290 | value_type = TYPE_TARGET_TYPE (SYMBOL_TYPE (function)); | |
1291 | if (!value_type) | |
1292 | internal_error (__FILE__, __LINE__, | |
1293 | _("finish_command: function has no target type")); | |
1294 | ||
1295 | if (TYPE_CODE (value_type) != TYPE_CODE_VOID) | |
1296 | print_return_value (SYMBOL_TYPE (function), value_type); | |
1297 | } | |
43ff13b4 | 1298 | } |
f941662f | 1299 | |
f107f563 | 1300 | delete_breakpoint (breakpoint); |
43ff13b4 JM |
1301 | } |
1302 | ||
f941662f MK |
1303 | /* "finish": Set a temporary breakpoint at the place the selected |
1304 | frame will return to, then continue. */ | |
c906108c SS |
1305 | |
1306 | static void | |
fba45db2 | 1307 | finish_command (char *arg, int from_tty) |
c906108c SS |
1308 | { |
1309 | struct symtab_and_line sal; | |
52f0bd74 AC |
1310 | struct frame_info *frame; |
1311 | struct symbol *function; | |
c906108c SS |
1312 | struct breakpoint *breakpoint; |
1313 | struct cleanup *old_chain; | |
0d06e24b | 1314 | struct continuation_arg *arg1, *arg2, *arg3; |
43ff13b4 JM |
1315 | |
1316 | int async_exec = 0; | |
1317 | ||
f941662f | 1318 | /* Find out whether we must run in the background. */ |
43ff13b4 JM |
1319 | if (arg != NULL) |
1320 | async_exec = strip_bg_char (&arg); | |
1321 | ||
1322 | /* If we must run in the background, but the target can't do it, | |
f941662f | 1323 | error out. */ |
362646f5 | 1324 | if (async_exec && !target_can_async_p ()) |
8a3fe4f8 | 1325 | error (_("Asynchronous execution not supported on this target.")); |
43ff13b4 JM |
1326 | |
1327 | /* If we are not asked to run in the bg, then prepare to run in the | |
f941662f | 1328 | foreground, synchronously. */ |
362646f5 | 1329 | if (!async_exec && target_can_async_p ()) |
c5aa993b | 1330 | { |
f941662f | 1331 | /* Simulate synchronous execution. */ |
6426a772 | 1332 | async_disable_stdin (); |
43ff13b4 | 1333 | } |
c906108c SS |
1334 | |
1335 | if (arg) | |
8a3fe4f8 | 1336 | error (_("The \"finish\" command does not take any arguments.")); |
c906108c | 1337 | if (!target_has_execution) |
8a3fe4f8 | 1338 | error (_("The program is not running.")); |
c906108c | 1339 | |
206415a3 | 1340 | frame = get_prev_frame (get_selected_frame (_("No selected frame."))); |
c906108c | 1341 | if (frame == 0) |
8a3fe4f8 | 1342 | error (_("\"finish\" not meaningful in the outermost frame.")); |
c906108c SS |
1343 | |
1344 | clear_proceed_status (); | |
1345 | ||
bdd78e62 AC |
1346 | sal = find_pc_line (get_frame_pc (frame), 0); |
1347 | sal.pc = get_frame_pc (frame); | |
c906108c | 1348 | |
818dd999 | 1349 | breakpoint = set_momentary_breakpoint (sal, get_frame_id (frame), bp_finish); |
c906108c | 1350 | |
f107f563 | 1351 | old_chain = make_cleanup_delete_breakpoint (breakpoint); |
c906108c SS |
1352 | |
1353 | /* Find the function we will return from. */ | |
1354 | ||
206415a3 | 1355 | function = find_pc_function (get_frame_pc (get_selected_frame (NULL))); |
c906108c | 1356 | |
f941662f MK |
1357 | /* Print info on the selected frame, including level number but not |
1358 | source. */ | |
c906108c SS |
1359 | if (from_tty) |
1360 | { | |
a3f17187 | 1361 | printf_filtered (_("Run till exit from ")); |
b04f3ab4 | 1362 | print_stack_frame (get_selected_frame (NULL), 1, LOCATION); |
c906108c SS |
1363 | } |
1364 | ||
32c1e744 VP |
1365 | proceed_to_finish = 1; /* We want stop_registers, please... */ |
1366 | proceed ((CORE_ADDR) -1, TARGET_SIGNAL_DEFAULT, 0); | |
1367 | ||
f107f563 VP |
1368 | arg1 = |
1369 | (struct continuation_arg *) xmalloc (sizeof (struct continuation_arg)); | |
1370 | arg2 = | |
1371 | (struct continuation_arg *) xmalloc (sizeof (struct continuation_arg)); | |
1372 | arg3 = | |
1373 | (struct continuation_arg *) xmalloc (sizeof (struct continuation_arg)); | |
1374 | arg1->next = arg2; | |
1375 | arg2->next = arg3; | |
1376 | arg3->next = NULL; | |
1377 | arg1->data.pointer = breakpoint; | |
1378 | arg2->data.pointer = function; | |
1379 | arg3->data.pointer = old_chain; | |
1380 | add_continuation (finish_command_continuation, arg1); | |
43ff13b4 | 1381 | |
43ff13b4 | 1382 | /* Do this only if not running asynchronously or if the target |
f941662f MK |
1383 | cannot do async execution. Otherwise, complete this command when |
1384 | the target actually stops, in fetch_inferior_event. */ | |
f107f563 | 1385 | discard_cleanups (old_chain); |
362646f5 | 1386 | if (!target_can_async_p ()) |
f107f563 | 1387 | do_all_continuations (0); |
c906108c SS |
1388 | } |
1389 | \f | |
f941662f | 1390 | |
c906108c | 1391 | static void |
fba45db2 | 1392 | program_info (char *args, int from_tty) |
c906108c SS |
1393 | { |
1394 | bpstat bs = stop_bpstat; | |
8671a17b PA |
1395 | int num; |
1396 | int stat = bpstat_num (&bs, &num); | |
c5aa993b | 1397 | |
c906108c SS |
1398 | if (!target_has_execution) |
1399 | { | |
a3f17187 | 1400 | printf_filtered (_("The program being debugged is not being run.\n")); |
c906108c SS |
1401 | return; |
1402 | } | |
1403 | ||
1404 | target_files_info (); | |
a3f17187 | 1405 | printf_filtered (_("Program stopped at %s.\n"), |
bb599908 | 1406 | hex_string ((unsigned long) stop_pc)); |
c906108c | 1407 | if (stop_step) |
a3f17187 | 1408 | printf_filtered (_("It stopped after being stepped.\n")); |
8671a17b | 1409 | else if (stat != 0) |
c906108c SS |
1410 | { |
1411 | /* There may be several breakpoints in the same place, so this | |
c5aa993b | 1412 | isn't as strange as it seems. */ |
8671a17b | 1413 | while (stat != 0) |
c906108c | 1414 | { |
8671a17b | 1415 | if (stat < 0) |
c906108c | 1416 | { |
a3f17187 AC |
1417 | printf_filtered (_("\ |
1418 | It stopped at a breakpoint that has since been deleted.\n")); | |
c906108c SS |
1419 | } |
1420 | else | |
a3f17187 | 1421 | printf_filtered (_("It stopped at breakpoint %d.\n"), num); |
8671a17b | 1422 | stat = bpstat_num (&bs, &num); |
c906108c SS |
1423 | } |
1424 | } | |
1425 | else if (stop_signal != TARGET_SIGNAL_0) | |
1426 | { | |
a3f17187 | 1427 | printf_filtered (_("It stopped with signal %s, %s.\n"), |
c906108c SS |
1428 | target_signal_to_name (stop_signal), |
1429 | target_signal_to_string (stop_signal)); | |
1430 | } | |
1431 | ||
1432 | if (!from_tty) | |
1433 | { | |
a3f17187 AC |
1434 | printf_filtered (_("\ |
1435 | Type \"info stack\" or \"info registers\" for more information.\n")); | |
c906108c SS |
1436 | } |
1437 | } | |
1438 | \f | |
1439 | static void | |
fba45db2 | 1440 | environment_info (char *var, int from_tty) |
c906108c SS |
1441 | { |
1442 | if (var) | |
1443 | { | |
aa1ee363 | 1444 | char *val = get_in_environ (inferior_environ, var); |
c906108c SS |
1445 | if (val) |
1446 | { | |
1447 | puts_filtered (var); | |
1448 | puts_filtered (" = "); | |
1449 | puts_filtered (val); | |
1450 | puts_filtered ("\n"); | |
1451 | } | |
1452 | else | |
1453 | { | |
1454 | puts_filtered ("Environment variable \""); | |
1455 | puts_filtered (var); | |
1456 | puts_filtered ("\" not defined.\n"); | |
1457 | } | |
1458 | } | |
1459 | else | |
1460 | { | |
aa1ee363 | 1461 | char **vector = environ_vector (inferior_environ); |
c906108c SS |
1462 | while (*vector) |
1463 | { | |
1464 | puts_filtered (*vector++); | |
1465 | puts_filtered ("\n"); | |
1466 | } | |
1467 | } | |
1468 | } | |
1469 | ||
1470 | static void | |
fba45db2 | 1471 | set_environment_command (char *arg, int from_tty) |
c906108c | 1472 | { |
52f0bd74 | 1473 | char *p, *val, *var; |
c906108c SS |
1474 | int nullset = 0; |
1475 | ||
1476 | if (arg == 0) | |
e2e0b3e5 | 1477 | error_no_arg (_("environment variable and value")); |
c906108c SS |
1478 | |
1479 | /* Find seperation between variable name and value */ | |
1480 | p = (char *) strchr (arg, '='); | |
1481 | val = (char *) strchr (arg, ' '); | |
1482 | ||
1483 | if (p != 0 && val != 0) | |
1484 | { | |
1485 | /* We have both a space and an equals. If the space is before the | |
c5aa993b JM |
1486 | equals, walk forward over the spaces til we see a nonspace |
1487 | (possibly the equals). */ | |
c906108c SS |
1488 | if (p > val) |
1489 | while (*val == ' ') | |
1490 | val++; | |
1491 | ||
1492 | /* Now if the = is after the char following the spaces, | |
c5aa993b | 1493 | take the char following the spaces. */ |
c906108c SS |
1494 | if (p > val) |
1495 | p = val - 1; | |
1496 | } | |
1497 | else if (val != 0 && p == 0) | |
1498 | p = val; | |
1499 | ||
1500 | if (p == arg) | |
e2e0b3e5 | 1501 | error_no_arg (_("environment variable to set")); |
c906108c SS |
1502 | |
1503 | if (p == 0 || p[1] == 0) | |
1504 | { | |
1505 | nullset = 1; | |
1506 | if (p == 0) | |
1507 | p = arg + strlen (arg); /* So that savestring below will work */ | |
1508 | } | |
1509 | else | |
1510 | { | |
1511 | /* Not setting variable value to null */ | |
1512 | val = p + 1; | |
1513 | while (*val == ' ' || *val == '\t') | |
1514 | val++; | |
1515 | } | |
1516 | ||
c5aa993b JM |
1517 | while (p != arg && (p[-1] == ' ' || p[-1] == '\t')) |
1518 | p--; | |
c906108c SS |
1519 | |
1520 | var = savestring (arg, p - arg); | |
1521 | if (nullset) | |
1522 | { | |
a3f17187 AC |
1523 | printf_filtered (_("\ |
1524 | Setting environment variable \"%s\" to null value.\n"), | |
1525 | var); | |
c906108c SS |
1526 | set_in_environ (inferior_environ, var, ""); |
1527 | } | |
1528 | else | |
1529 | set_in_environ (inferior_environ, var, val); | |
b8c9b27d | 1530 | xfree (var); |
c906108c SS |
1531 | } |
1532 | ||
1533 | static void | |
fba45db2 | 1534 | unset_environment_command (char *var, int from_tty) |
c906108c SS |
1535 | { |
1536 | if (var == 0) | |
1537 | { | |
1538 | /* If there is no argument, delete all environment variables. | |
c5aa993b | 1539 | Ask for confirmation if reading from the terminal. */ |
e2e0b3e5 | 1540 | if (!from_tty || query (_("Delete all environment variables? "))) |
c906108c SS |
1541 | { |
1542 | free_environ (inferior_environ); | |
1543 | inferior_environ = make_environ (); | |
1544 | } | |
1545 | } | |
1546 | else | |
1547 | unset_in_environ (inferior_environ, var); | |
1548 | } | |
1549 | ||
1550 | /* Handle the execution path (PATH variable) */ | |
1551 | ||
1552 | static const char path_var_name[] = "PATH"; | |
1553 | ||
c906108c | 1554 | static void |
fba45db2 | 1555 | path_info (char *args, int from_tty) |
c906108c SS |
1556 | { |
1557 | puts_filtered ("Executable and object file path: "); | |
1558 | puts_filtered (get_in_environ (inferior_environ, path_var_name)); | |
1559 | puts_filtered ("\n"); | |
1560 | } | |
1561 | ||
1562 | /* Add zero or more directories to the front of the execution path. */ | |
1563 | ||
1564 | static void | |
fba45db2 | 1565 | path_command (char *dirname, int from_tty) |
c906108c SS |
1566 | { |
1567 | char *exec_path; | |
1568 | char *env; | |
1569 | dont_repeat (); | |
1570 | env = get_in_environ (inferior_environ, path_var_name); | |
1571 | /* Can be null if path is not set */ | |
1572 | if (!env) | |
1573 | env = ""; | |
4fcf66da | 1574 | exec_path = xstrdup (env); |
c906108c SS |
1575 | mod_path (dirname, &exec_path); |
1576 | set_in_environ (inferior_environ, path_var_name, exec_path); | |
b8c9b27d | 1577 | xfree (exec_path); |
c906108c | 1578 | if (from_tty) |
c5aa993b | 1579 | path_info ((char *) NULL, from_tty); |
c906108c | 1580 | } |
c906108c | 1581 | \f |
c5aa993b | 1582 | |
4782dc19 | 1583 | /* Print out the machine register regnum. If regnum is -1, print all |
0ab7a791 AC |
1584 | registers (print_all == 1) or all non-float and non-vector |
1585 | registers (print_all == 0). | |
c906108c SS |
1586 | |
1587 | For most machines, having all_registers_info() print the | |
0ab7a791 AC |
1588 | register(s) one per line is good enough. If a different format is |
1589 | required, (eg, for MIPS or Pyramid 90x, which both have lots of | |
1590 | regs), or there is an existing convention for showing all the | |
1591 | registers, define the architecture method PRINT_REGISTERS_INFO to | |
1592 | provide that format. */ | |
c906108c | 1593 | |
666e11c5 | 1594 | void |
0ab7a791 AC |
1595 | default_print_registers_info (struct gdbarch *gdbarch, |
1596 | struct ui_file *file, | |
1597 | struct frame_info *frame, | |
1598 | int regnum, int print_all) | |
c906108c | 1599 | { |
0ab7a791 | 1600 | int i; |
a4bd449d UW |
1601 | const int numregs = gdbarch_num_regs (gdbarch) |
1602 | + gdbarch_num_pseudo_regs (gdbarch); | |
10c42a71 | 1603 | gdb_byte buffer[MAX_REGISTER_SIZE]; |
0ab7a791 | 1604 | |
c906108c SS |
1605 | for (i = 0; i < numregs; i++) |
1606 | { | |
4782dc19 AC |
1607 | /* Decide between printing all regs, non-float / vector regs, or |
1608 | specific reg. */ | |
c5aa993b JM |
1609 | if (regnum == -1) |
1610 | { | |
f9418c0f | 1611 | if (print_all) |
4782dc19 | 1612 | { |
f9418c0f | 1613 | if (!gdbarch_register_reggroup_p (gdbarch, i, all_reggroup)) |
4782dc19 | 1614 | continue; |
f9418c0f AC |
1615 | } |
1616 | else | |
1617 | { | |
1618 | if (!gdbarch_register_reggroup_p (gdbarch, i, general_reggroup)) | |
4782dc19 AC |
1619 | continue; |
1620 | } | |
c5aa993b JM |
1621 | } |
1622 | else | |
1623 | { | |
1624 | if (i != regnum) | |
1625 | continue; | |
1626 | } | |
c906108c SS |
1627 | |
1628 | /* If the register name is empty, it is undefined for this | |
c5aa993b | 1629 | processor, so don't display anything. */ |
a4bd449d UW |
1630 | if (gdbarch_register_name (gdbarch, i) == NULL |
1631 | || *(gdbarch_register_name (gdbarch, i)) == '\0') | |
c906108c SS |
1632 | continue; |
1633 | ||
a4bd449d | 1634 | fputs_filtered (gdbarch_register_name (gdbarch, i), file); |
c9f4d572 | 1635 | print_spaces_filtered (15 - strlen (gdbarch_register_name |
a4bd449d | 1636 | (gdbarch, i)), file); |
c906108c SS |
1637 | |
1638 | /* Get the data in raw format. */ | |
9730f241 | 1639 | if (! frame_register_read (frame, i, buffer)) |
c906108c | 1640 | { |
0ab7a791 | 1641 | fprintf_filtered (file, "*value not available*\n"); |
c906108c SS |
1642 | continue; |
1643 | } | |
1644 | ||
0ab7a791 AC |
1645 | /* If virtual format is floating, print it that way, and in raw |
1646 | hex. */ | |
f949c649 TJB |
1647 | if (TYPE_CODE (register_type (gdbarch, i)) == TYPE_CODE_FLT |
1648 | || TYPE_CODE (register_type (gdbarch, i)) == TYPE_CODE_DECFLOAT) | |
c906108c | 1649 | { |
0ab7a791 | 1650 | int j; |
c906108c | 1651 | |
a4bd449d | 1652 | val_print (register_type (gdbarch, i), buffer, 0, 0, |
d8ca156b | 1653 | file, 0, 1, 0, Val_pretty_default, current_language); |
c906108c | 1654 | |
0ab7a791 | 1655 | fprintf_filtered (file, "\t(raw 0x"); |
a4bd449d | 1656 | for (j = 0; j < register_size (gdbarch, i); j++) |
c906108c | 1657 | { |
0ab7a791 | 1658 | int idx; |
a4bd449d | 1659 | if (gdbarch_byte_order (gdbarch) == BFD_ENDIAN_BIG) |
0ab7a791 AC |
1660 | idx = j; |
1661 | else | |
a4bd449d | 1662 | idx = register_size (gdbarch, i) - 1 - j; |
9730f241 | 1663 | fprintf_filtered (file, "%02x", (unsigned char) buffer[idx]); |
c906108c | 1664 | } |
0ab7a791 | 1665 | fprintf_filtered (file, ")"); |
c906108c | 1666 | } |
c906108c SS |
1667 | else |
1668 | { | |
ab4327e0 | 1669 | /* Print the register in hex. */ |
a4bd449d | 1670 | val_print (register_type (gdbarch, i), buffer, 0, 0, |
d8ca156b | 1671 | file, 'x', 1, 0, Val_pretty_default, current_language); |
ab4327e0 EZ |
1672 | /* If not a vector register, print it also according to its |
1673 | natural format. */ | |
a4bd449d | 1674 | if (TYPE_VECTOR (register_type (gdbarch, i)) == 0) |
ab4327e0 | 1675 | { |
9d84ac84 | 1676 | fprintf_filtered (file, "\t"); |
a4bd449d | 1677 | val_print (register_type (gdbarch, i), buffer, 0, 0, |
d8ca156b | 1678 | file, 0, 1, 0, Val_pretty_default, current_language); |
ab4327e0 | 1679 | } |
c906108c SS |
1680 | } |
1681 | ||
0ab7a791 | 1682 | fprintf_filtered (file, "\n"); |
c906108c SS |
1683 | } |
1684 | } | |
c906108c | 1685 | |
c906108c | 1686 | void |
fba45db2 | 1687 | registers_info (char *addr_exp, int fpregs) |
c906108c | 1688 | { |
206415a3 | 1689 | struct frame_info *frame; |
a4bd449d | 1690 | struct gdbarch *gdbarch; |
c906108c | 1691 | int regnum, numregs; |
52f0bd74 | 1692 | char *end; |
c906108c SS |
1693 | |
1694 | if (!target_has_registers) | |
8a3fe4f8 | 1695 | error (_("The program has no registers now.")); |
206415a3 | 1696 | frame = get_selected_frame (NULL); |
a4bd449d | 1697 | gdbarch = get_frame_arch (frame); |
c906108c SS |
1698 | |
1699 | if (!addr_exp) | |
1700 | { | |
a4bd449d | 1701 | gdbarch_print_registers_info (gdbarch, gdb_stdout, |
206415a3 | 1702 | frame, -1, fpregs); |
c906108c SS |
1703 | return; |
1704 | } | |
1705 | ||
f9418c0f | 1706 | while (*addr_exp != '\0') |
c5aa993b | 1707 | { |
f9418c0f AC |
1708 | char *start; |
1709 | const char *end; | |
c906108c | 1710 | |
f9418c0f AC |
1711 | /* Keep skipping leading white space. */ |
1712 | if (isspace ((*addr_exp))) | |
1713 | { | |
1714 | addr_exp++; | |
1715 | continue; | |
1716 | } | |
c906108c | 1717 | |
f9418c0f AC |
1718 | /* Discard any leading ``$''. Check that there is something |
1719 | resembling a register following it. */ | |
1720 | if (addr_exp[0] == '$') | |
1721 | addr_exp++; | |
1722 | if (isspace ((*addr_exp)) || (*addr_exp) == '\0') | |
8a3fe4f8 | 1723 | error (_("Missing register name")); |
c906108c | 1724 | |
f9418c0f AC |
1725 | /* Find the start/end of this register name/num/group. */ |
1726 | start = addr_exp; | |
1727 | while ((*addr_exp) != '\0' && !isspace ((*addr_exp))) | |
1728 | addr_exp++; | |
1729 | end = addr_exp; | |
ad842144 | 1730 | |
f9418c0f AC |
1731 | /* Figure out what we've found and display it. */ |
1732 | ||
1733 | /* A register name? */ | |
1734 | { | |
ad842144 | 1735 | int regnum = frame_map_name_to_regnum (frame, start, end - start); |
f9418c0f AC |
1736 | if (regnum >= 0) |
1737 | { | |
ad842144 MR |
1738 | /* User registers lie completely outside of the range of |
1739 | normal registers. Catch them early so that the target | |
1740 | never sees them. */ | |
1741 | if (regnum >= gdbarch_num_regs (gdbarch) | |
1742 | + gdbarch_num_pseudo_regs (gdbarch)) | |
1743 | { | |
1744 | struct value *val = value_of_user_reg (regnum, frame); | |
1745 | ||
1746 | printf_filtered ("%s: ", start); | |
1747 | print_scalar_formatted (value_contents (val), | |
1748 | check_typedef (value_type (val)), | |
1749 | 'x', 0, gdb_stdout); | |
1750 | printf_filtered ("\n"); | |
1751 | } | |
1752 | else | |
1753 | gdbarch_print_registers_info (gdbarch, gdb_stdout, | |
1754 | frame, regnum, fpregs); | |
f9418c0f AC |
1755 | continue; |
1756 | } | |
1757 | } | |
ad842144 | 1758 | |
f9418c0f AC |
1759 | /* A register number? (how portable is this one?). */ |
1760 | { | |
1761 | char *endptr; | |
1762 | int regnum = strtol (start, &endptr, 0); | |
1763 | if (endptr == end | |
1764 | && regnum >= 0 | |
a4bd449d UW |
1765 | && regnum < gdbarch_num_regs (gdbarch) |
1766 | + gdbarch_num_pseudo_regs (gdbarch)) | |
f9418c0f | 1767 | { |
a4bd449d | 1768 | gdbarch_print_registers_info (gdbarch, gdb_stdout, |
206415a3 | 1769 | frame, regnum, fpregs); |
f9418c0f AC |
1770 | continue; |
1771 | } | |
1772 | } | |
1773 | ||
1774 | /* A register group? */ | |
1775 | { | |
6c7d17ba | 1776 | struct reggroup *group; |
a4bd449d | 1777 | for (group = reggroup_next (gdbarch, NULL); |
6c7d17ba | 1778 | group != NULL; |
a4bd449d | 1779 | group = reggroup_next (gdbarch, group)) |
f9418c0f AC |
1780 | { |
1781 | /* Don't bother with a length check. Should the user | |
1782 | enter a short register group name, go with the first | |
1783 | group that matches. */ | |
6c7d17ba | 1784 | if (strncmp (start, reggroup_name (group), end - start) == 0) |
f9418c0f AC |
1785 | break; |
1786 | } | |
6c7d17ba | 1787 | if (group != NULL) |
f9418c0f AC |
1788 | { |
1789 | int regnum; | |
f57d151a | 1790 | for (regnum = 0; |
a4bd449d UW |
1791 | regnum < gdbarch_num_regs (gdbarch) |
1792 | + gdbarch_num_pseudo_regs (gdbarch); | |
f57d151a | 1793 | regnum++) |
f9418c0f | 1794 | { |
a4bd449d UW |
1795 | if (gdbarch_register_reggroup_p (gdbarch, regnum, group)) |
1796 | gdbarch_print_registers_info (gdbarch, | |
206415a3 | 1797 | gdb_stdout, frame, |
f9418c0f AC |
1798 | regnum, fpregs); |
1799 | } | |
1800 | continue; | |
1801 | } | |
1802 | } | |
c906108c | 1803 | |
f9418c0f | 1804 | /* Nothing matched. */ |
8a3fe4f8 | 1805 | error (_("Invalid register `%.*s'"), (int) (end - start), start); |
c5aa993b | 1806 | } |
c906108c SS |
1807 | } |
1808 | ||
1809 | void | |
fba45db2 | 1810 | all_registers_info (char *addr_exp, int from_tty) |
c906108c SS |
1811 | { |
1812 | registers_info (addr_exp, 1); | |
1813 | } | |
1814 | ||
a58dd373 | 1815 | static void |
fba45db2 | 1816 | nofp_registers_info (char *addr_exp, int from_tty) |
c906108c SS |
1817 | { |
1818 | registers_info (addr_exp, 0); | |
1819 | } | |
e76f1f2e AC |
1820 | |
1821 | static void | |
1822 | print_vector_info (struct gdbarch *gdbarch, struct ui_file *file, | |
1823 | struct frame_info *frame, const char *args) | |
1824 | { | |
1825 | if (gdbarch_print_vector_info_p (gdbarch)) | |
1826 | gdbarch_print_vector_info (gdbarch, file, frame, args); | |
1827 | else | |
1828 | { | |
1829 | int regnum; | |
1830 | int printed_something = 0; | |
ab4327e0 | 1831 | |
f57d151a | 1832 | for (regnum = 0; |
a4bd449d UW |
1833 | regnum < gdbarch_num_regs (gdbarch) |
1834 | + gdbarch_num_pseudo_regs (gdbarch); | |
f57d151a | 1835 | regnum++) |
e76f1f2e | 1836 | { |
f9418c0f | 1837 | if (gdbarch_register_reggroup_p (gdbarch, regnum, vector_reggroup)) |
e76f1f2e AC |
1838 | { |
1839 | printed_something = 1; | |
e76f1f2e | 1840 | gdbarch_print_registers_info (gdbarch, file, frame, regnum, 1); |
e76f1f2e AC |
1841 | } |
1842 | } | |
1843 | if (!printed_something) | |
1844 | fprintf_filtered (file, "No vector information\n"); | |
1845 | } | |
1846 | } | |
1847 | ||
1848 | static void | |
1849 | vector_info (char *args, int from_tty) | |
1850 | { | |
206415a3 DJ |
1851 | if (!target_has_registers) |
1852 | error (_("The program has no registers now.")); | |
1853 | ||
1854 | print_vector_info (current_gdbarch, gdb_stdout, | |
1855 | get_selected_frame (NULL), args); | |
e76f1f2e | 1856 | } |
c906108c | 1857 | \f |
c5aa993b | 1858 | |
c906108c SS |
1859 | /* |
1860 | * TODO: | |
1861 | * Should save/restore the tty state since it might be that the | |
1862 | * program to be debugged was started on this tty and it wants | |
1863 | * the tty in some state other than what we want. If it's running | |
1864 | * on another terminal or without a terminal, then saving and | |
1865 | * restoring the tty state is a harmless no-op. | |
1866 | * This only needs to be done if we are attaching to a process. | |
1867 | */ | |
1868 | ||
1869 | /* | |
1870 | attach_command -- | |
1871 | takes a program started up outside of gdb and ``attaches'' to it. | |
1872 | This stops it cold in its tracks and allows us to start debugging it. | |
1873 | and wait for the trace-trap that results from attaching. */ | |
1874 | ||
9356cf8d PA |
1875 | static void |
1876 | attach_command_post_wait (char *args, int from_tty, int async_exec) | |
1877 | { | |
1878 | char *exec_file; | |
1879 | char *full_exec_path = NULL; | |
1880 | ||
1881 | stop_soon = NO_STOP_QUIETLY; | |
1882 | ||
1883 | /* If no exec file is yet known, try to determine it from the | |
1884 | process itself. */ | |
1885 | exec_file = (char *) get_exec_file (0); | |
1886 | if (!exec_file) | |
1887 | { | |
1888 | exec_file = target_pid_to_exec_file (PIDGET (inferior_ptid)); | |
1889 | if (exec_file) | |
1890 | { | |
1891 | /* It's possible we don't have a full path, but rather just a | |
1892 | filename. Some targets, such as HP-UX, don't provide the | |
1893 | full path, sigh. | |
1894 | ||
1895 | Attempt to qualify the filename against the source path. | |
1896 | (If that fails, we'll just fall back on the original | |
1897 | filename. Not much more we can do...) | |
1898 | */ | |
1899 | if (!source_full_path_of (exec_file, &full_exec_path)) | |
1900 | full_exec_path = savestring (exec_file, strlen (exec_file)); | |
1901 | ||
1902 | exec_file_attach (full_exec_path, from_tty); | |
1903 | symbol_file_add_main (full_exec_path, from_tty); | |
1904 | } | |
1905 | } | |
1906 | else | |
1907 | { | |
1908 | reopen_exec_file (); | |
1909 | reread_symbols (); | |
1910 | } | |
1911 | ||
1912 | /* Take any necessary post-attaching actions for this platform. */ | |
1913 | target_post_attach (PIDGET (inferior_ptid)); | |
1914 | ||
1915 | post_create_inferior (¤t_target, from_tty); | |
1916 | ||
1917 | /* Install inferior's terminal modes. */ | |
1918 | target_terminal_inferior (); | |
1919 | ||
1920 | if (async_exec) | |
1921 | proceed ((CORE_ADDR) -1, TARGET_SIGNAL_0, 0); | |
1922 | else | |
1923 | { | |
1924 | if (target_can_async_p ()) | |
1925 | async_enable_stdin (); | |
1926 | normal_stop (); | |
1927 | if (deprecated_attach_hook) | |
1928 | deprecated_attach_hook (); | |
1929 | } | |
1930 | } | |
1931 | ||
1932 | static void | |
f107f563 | 1933 | attach_command_continuation (struct continuation_arg *arg, int error_p) |
9356cf8d PA |
1934 | { |
1935 | char *args; | |
1936 | int from_tty; | |
1937 | int async_exec; | |
1938 | ||
1939 | args = (char *) arg->data.pointer; | |
1940 | from_tty = arg->next->data.integer; | |
1941 | async_exec = arg->next->next->data.integer; | |
1942 | ||
1943 | attach_command_post_wait (args, from_tty, async_exec); | |
1944 | } | |
1945 | ||
c906108c | 1946 | void |
fba45db2 | 1947 | attach_command (char *args, int from_tty) |
c906108c | 1948 | { |
c5aa993b JM |
1949 | char *exec_file; |
1950 | char *full_exec_path = NULL; | |
9356cf8d | 1951 | int async_exec = 0; |
c906108c | 1952 | |
c5aa993b | 1953 | dont_repeat (); /* Not for the faint of heart */ |
c906108c SS |
1954 | |
1955 | if (target_has_execution) | |
1956 | { | |
1957 | if (query ("A program is being debugged already. Kill it? ")) | |
1958 | target_kill (); | |
1959 | else | |
8a3fe4f8 | 1960 | error (_("Not killed.")); |
c906108c SS |
1961 | } |
1962 | ||
fd79ecee DJ |
1963 | /* Clean up any leftovers from other runs. Some other things from |
1964 | this function should probably be moved into target_pre_inferior. */ | |
1965 | target_pre_inferior (from_tty); | |
1966 | ||
4bcff7eb CV |
1967 | /* Clear out solib state. Otherwise the solib state of the previous |
1968 | inferior might have survived and is entirely wrong for the new | |
155bd5d1 AC |
1969 | target. This has been observed on GNU/Linux using glibc 2.3. How |
1970 | to reproduce: | |
4bcff7eb CV |
1971 | |
1972 | bash$ ./foo& | |
1973 | [1] 4711 | |
1974 | bash$ ./foo& | |
1975 | [1] 4712 | |
1976 | bash$ gdb ./foo | |
1977 | [...] | |
1978 | (gdb) attach 4711 | |
1979 | (gdb) detach | |
1980 | (gdb) attach 4712 | |
1981 | Cannot access memory at address 0xdeadbeef | |
1982 | */ | |
7a72d44c | 1983 | clear_solib (); |
4bcff7eb | 1984 | |
9356cf8d PA |
1985 | if (args) |
1986 | { | |
1987 | async_exec = strip_bg_char (&args); | |
1988 | ||
1989 | /* If we get a request for running in the bg but the target | |
1990 | doesn't support it, error out. */ | |
1991 | if (async_exec && !target_can_async_p ()) | |
1992 | error (_("Asynchronous execution not supported on this target.")); | |
1993 | } | |
1994 | ||
1995 | /* If we don't get a request of running in the bg, then we need | |
1996 | to simulate synchronous (fg) execution. */ | |
1997 | if (!async_exec && target_can_async_p ()) | |
1998 | { | |
1999 | /* Simulate synchronous execution */ | |
2000 | async_disable_stdin (); | |
2001 | } | |
2002 | ||
c906108c SS |
2003 | target_attach (args, from_tty); |
2004 | ||
2005 | /* Set up the "saved terminal modes" of the inferior | |
2006 | based on what modes we are starting it with. */ | |
2007 | target_terminal_init (); | |
2008 | ||
c906108c SS |
2009 | /* Set up execution context to know that we should return from |
2010 | wait_for_inferior as soon as the target reports a stop. */ | |
2011 | init_wait_for_inferior (); | |
2012 | clear_proceed_status (); | |
c906108c SS |
2013 | |
2014 | /* No traps are generated when attaching to inferior under Mach 3 | |
2015 | or GNU hurd. */ | |
2016 | #ifndef ATTACH_NO_WAIT | |
c54cfec8 EZ |
2017 | /* Careful here. See comments in inferior.h. Basically some OSes |
2018 | don't ignore SIGSTOPs on continue requests anymore. We need a | |
2019 | way for handle_inferior_event to reset the stop_signal variable | |
2020 | after an attach, and this is what STOP_QUIETLY_NO_SIGSTOP is for. */ | |
c0236d92 | 2021 | stop_soon = STOP_QUIETLY_NO_SIGSTOP; |
c906108c | 2022 | |
9356cf8d | 2023 | if (target_can_async_p ()) |
c5aa993b | 2024 | { |
9356cf8d PA |
2025 | /* sync_execution mode. Wait for stop. */ |
2026 | struct continuation_arg *arg1, *arg2, *arg3; | |
c5aa993b | 2027 | |
9356cf8d PA |
2028 | arg1 = |
2029 | (struct continuation_arg *) xmalloc (sizeof (struct continuation_arg)); | |
2030 | arg2 = | |
2031 | (struct continuation_arg *) xmalloc (sizeof (struct continuation_arg)); | |
2032 | arg3 = | |
2033 | (struct continuation_arg *) xmalloc (sizeof (struct continuation_arg)); | |
2034 | arg1->next = arg2; | |
2035 | arg2->next = arg3; | |
2036 | arg3->next = NULL; | |
2037 | arg1->data.pointer = args; | |
2038 | arg2->data.integer = from_tty; | |
2039 | arg3->data.integer = async_exec; | |
2040 | add_continuation (attach_command_continuation, arg1); | |
2041 | return; | |
63ed89b4 | 2042 | } |
c906108c | 2043 | |
9356cf8d PA |
2044 | wait_for_inferior (0); |
2045 | #endif | |
6426a772 | 2046 | |
9356cf8d | 2047 | attach_command_post_wait (args, from_tty, async_exec); |
c906108c SS |
2048 | } |
2049 | ||
2050 | /* | |
2051 | * detach_command -- | |
2052 | * takes a program previously attached to and detaches it. | |
2053 | * The program resumes execution and will no longer stop | |
2054 | * on signals, etc. We better not have left any breakpoints | |
2055 | * in the program or it'll die when it hits one. For this | |
2056 | * to work, it may be necessary for the process to have been | |
2057 | * previously attached. It *might* work if the program was | |
2058 | * started via the normal ptrace (PTRACE_TRACEME). | |
2059 | */ | |
2060 | ||
2061 | static void | |
fba45db2 | 2062 | detach_command (char *args, int from_tty) |
c906108c | 2063 | { |
1f5d0fc9 | 2064 | dont_repeat (); /* Not for the faint of heart. */ |
c906108c | 2065 | target_detach (args, from_tty); |
e85a822c | 2066 | no_shared_libraries (NULL, from_tty); |
a0ef4274 | 2067 | init_thread_list (); |
9a4105ab AC |
2068 | if (deprecated_detach_hook) |
2069 | deprecated_detach_hook (); | |
c906108c SS |
2070 | } |
2071 | ||
6ad8ae5c DJ |
2072 | /* Disconnect from the current target without resuming it (leaving it |
2073 | waiting for a debugger). | |
2074 | ||
2075 | We'd better not have left any breakpoints in the program or the | |
2076 | next debugger will get confused. Currently only supported for some | |
2077 | remote targets, since the normal attach mechanisms don't work on | |
2078 | stopped processes on some native platforms (e.g. GNU/Linux). */ | |
2079 | ||
2080 | static void | |
2081 | disconnect_command (char *args, int from_tty) | |
2082 | { | |
2083 | dont_repeat (); /* Not for the faint of heart */ | |
2084 | target_disconnect (args, from_tty); | |
e85a822c | 2085 | no_shared_libraries (NULL, from_tty); |
a0ef4274 | 2086 | init_thread_list (); |
9a4105ab AC |
2087 | if (deprecated_detach_hook) |
2088 | deprecated_detach_hook (); | |
6ad8ae5c DJ |
2089 | } |
2090 | ||
43ff13b4 JM |
2091 | /* Stop the execution of the target while running in async mode, in |
2092 | the backgound. */ | |
8b93c638 | 2093 | void |
fba45db2 | 2094 | interrupt_target_command (char *args, int from_tty) |
43ff13b4 | 2095 | { |
362646f5 | 2096 | if (target_can_async_p ()) |
43ff13b4 | 2097 | { |
c5aa993b | 2098 | dont_repeat (); /* Not for the faint of heart */ |
43ff13b4 JM |
2099 | target_stop (); |
2100 | } | |
2101 | } | |
2102 | ||
c906108c | 2103 | static void |
23e3a7ac AC |
2104 | print_float_info (struct gdbarch *gdbarch, struct ui_file *file, |
2105 | struct frame_info *frame, const char *args) | |
c906108c | 2106 | { |
23e3a7ac AC |
2107 | if (gdbarch_print_float_info_p (gdbarch)) |
2108 | gdbarch_print_float_info (gdbarch, file, frame, args); | |
2109 | else | |
2110 | { | |
23e3a7ac AC |
2111 | int regnum; |
2112 | int printed_something = 0; | |
ab4327e0 | 2113 | |
f57d151a | 2114 | for (regnum = 0; |
a4bd449d UW |
2115 | regnum < gdbarch_num_regs (gdbarch) |
2116 | + gdbarch_num_pseudo_regs (gdbarch); | |
f57d151a | 2117 | regnum++) |
23e3a7ac | 2118 | { |
f9418c0f | 2119 | if (gdbarch_register_reggroup_p (gdbarch, regnum, float_reggroup)) |
23e3a7ac AC |
2120 | { |
2121 | printed_something = 1; | |
23e3a7ac | 2122 | gdbarch_print_registers_info (gdbarch, file, frame, regnum, 1); |
23e3a7ac AC |
2123 | } |
2124 | } | |
2125 | if (!printed_something) | |
2126 | fprintf_filtered (file, "\ | |
2127 | No floating-point info available for this processor.\n"); | |
23e3a7ac AC |
2128 | } |
2129 | } | |
2130 | ||
2131 | static void | |
2132 | float_info (char *args, int from_tty) | |
2133 | { | |
206415a3 DJ |
2134 | if (!target_has_registers) |
2135 | error (_("The program has no registers now.")); | |
2136 | ||
1f5d0fc9 | 2137 | print_float_info (current_gdbarch, gdb_stdout, |
206415a3 | 2138 | get_selected_frame (NULL), args); |
c906108c SS |
2139 | } |
2140 | \f | |
c906108c | 2141 | static void |
fba45db2 | 2142 | unset_command (char *args, int from_tty) |
c906108c | 2143 | { |
a3f17187 AC |
2144 | printf_filtered (_("\ |
2145 | \"unset\" must be followed by the name of an unset subcommand.\n")); | |
c906108c SS |
2146 | help_list (unsetlist, "unset ", -1, gdb_stdout); |
2147 | } | |
2148 | ||
2149 | void | |
fba45db2 | 2150 | _initialize_infcmd (void) |
c906108c | 2151 | { |
3cb3b8df BR |
2152 | struct cmd_list_element *c = NULL; |
2153 | ||
2154 | /* add the filename of the terminal connected to inferior I/O */ | |
2155 | add_setshow_filename_cmd ("inferior-tty", class_run, | |
2156 | &inferior_io_terminal, _("\ | |
2157 | Set terminal for future runs of program being debugged."), _("\ | |
2158 | Show terminal for future runs of program being debugged."), _("\ | |
2159 | Usage: set inferior-tty /dev/pts/1"), NULL, NULL, &setlist, &showlist); | |
2160 | add_com_alias ("tty", "set inferior-tty", class_alias, 0); | |
c906108c | 2161 | |
b4b4ac0b AC |
2162 | add_setshow_optional_filename_cmd ("args", class_run, |
2163 | &inferior_args, _("\ | |
2164 | Set argument list to give program being debugged when it is started."), _("\ | |
2165 | Show argument list to give program being debugged when it is started."), _("\ | |
2166 | Follow this command with any number of args, to be passed to the program."), | |
2167 | notice_args_set, | |
2168 | notice_args_read, | |
2169 | &setlist, &showlist); | |
c906108c | 2170 | |
1a966eab AC |
2171 | c = add_cmd ("environment", no_class, environment_info, _("\ |
2172 | The environment to give the program, or one variable's value.\n\ | |
c906108c SS |
2173 | With an argument VAR, prints the value of environment variable VAR to\n\ |
2174 | give the program being debugged. With no arguments, prints the entire\n\ | |
1a966eab | 2175 | environment to be given to the program."), &showlist); |
5ba2abeb | 2176 | set_cmd_completer (c, noop_completer); |
c906108c SS |
2177 | |
2178 | add_prefix_cmd ("unset", no_class, unset_command, | |
1bedd215 | 2179 | _("Complement to certain \"set\" commands."), |
c906108c | 2180 | &unsetlist, "unset ", 0, &cmdlist); |
c5aa993b | 2181 | |
1a966eab AC |
2182 | c = add_cmd ("environment", class_run, unset_environment_command, _("\ |
2183 | Cancel environment variable VAR for the program.\n\ | |
2184 | This does not affect the program until the next \"run\" command."), | |
c5aa993b | 2185 | &unsetlist); |
5ba2abeb | 2186 | set_cmd_completer (c, noop_completer); |
c906108c | 2187 | |
1a966eab AC |
2188 | c = add_cmd ("environment", class_run, set_environment_command, _("\ |
2189 | Set environment variable value to give the program.\n\ | |
c906108c SS |
2190 | Arguments are VAR VALUE where VAR is variable name and VALUE is value.\n\ |
2191 | VALUES of environment variables are uninterpreted strings.\n\ | |
1a966eab | 2192 | This does not affect the program until the next \"run\" command."), |
c5aa993b | 2193 | &setlist); |
5ba2abeb | 2194 | set_cmd_completer (c, noop_completer); |
c5aa993b | 2195 | |
1bedd215 AC |
2196 | c = add_com ("path", class_files, path_command, _("\ |
2197 | Add directory DIR(s) to beginning of search path for object files.\n\ | |
c906108c SS |
2198 | $cwd in the path means the current working directory.\n\ |
2199 | This path is equivalent to the $PATH shell variable. It is a list of\n\ | |
2200 | directories, separated by colons. These directories are searched to find\n\ | |
1bedd215 | 2201 | fully linked executable files and separately compiled object files as needed.")); |
5ba2abeb | 2202 | set_cmd_completer (c, filename_completer); |
c906108c | 2203 | |
1a966eab AC |
2204 | c = add_cmd ("paths", no_class, path_info, _("\ |
2205 | Current search path for finding object files.\n\ | |
c906108c SS |
2206 | $cwd in the path means the current working directory.\n\ |
2207 | This path is equivalent to the $PATH shell variable. It is a list of\n\ | |
2208 | directories, separated by colons. These directories are searched to find\n\ | |
1a966eab | 2209 | fully linked executable files and separately compiled object files as needed."), |
c906108c | 2210 | &showlist); |
5ba2abeb | 2211 | set_cmd_completer (c, noop_completer); |
c906108c | 2212 | |
1bedd215 AC |
2213 | add_com ("attach", class_run, attach_command, _("\ |
2214 | Attach to a process or file outside of GDB.\n\ | |
c906108c SS |
2215 | This command attaches to another target, of the same type as your last\n\ |
2216 | \"target\" command (\"info files\" will show your target stack).\n\ | |
2217 | The command may take as argument a process id or a device file.\n\ | |
2218 | For a process id, you must have permission to send the process a signal,\n\ | |
2219 | and it must have the same effective uid as the debugger.\n\ | |
2220 | When using \"attach\" with a process id, the debugger finds the\n\ | |
2221 | program running in the process, looking first in the current working\n\ | |
2222 | directory, or (if not found there) using the source file search path\n\ | |
2223 | (see the \"directory\" command). You can also use the \"file\" command\n\ | |
1bedd215 | 2224 | to specify the program, and to load its symbol table.")); |
c906108c | 2225 | |
f73adfeb | 2226 | add_prefix_cmd ("detach", class_run, detach_command, _("\ |
1bedd215 | 2227 | Detach a process or file previously attached.\n\ |
c906108c | 2228 | If a process, it is no longer traced, and it continues its execution. If\n\ |
f73adfeb AS |
2229 | you were debugging a file, the file is closed and gdb no longer accesses it."), |
2230 | &detachlist, "detach ", 0, &cmdlist); | |
c906108c | 2231 | |
1bedd215 AC |
2232 | add_com ("disconnect", class_run, disconnect_command, _("\ |
2233 | Disconnect from a target.\n\ | |
6ad8ae5c | 2234 | The target will wait for another debugger to connect. Not available for\n\ |
1bedd215 | 2235 | all targets.")); |
6ad8ae5c | 2236 | |
1bedd215 AC |
2237 | add_com ("signal", class_run, signal_command, _("\ |
2238 | Continue program giving it signal specified by the argument.\n\ | |
2239 | An argument of \"0\" means continue program without giving it a signal.")); | |
c906108c | 2240 | |
1bedd215 AC |
2241 | add_com ("stepi", class_run, stepi_command, _("\ |
2242 | Step one instruction exactly.\n\ | |
2243 | Argument N means do this N times (or till program stops for another reason).")); | |
c906108c SS |
2244 | add_com_alias ("si", "stepi", class_alias, 0); |
2245 | ||
1bedd215 AC |
2246 | add_com ("nexti", class_run, nexti_command, _("\ |
2247 | Step one instruction, but proceed through subroutine calls.\n\ | |
2248 | Argument N means do this N times (or till program stops for another reason).")); | |
c906108c SS |
2249 | add_com_alias ("ni", "nexti", class_alias, 0); |
2250 | ||
1bedd215 AC |
2251 | add_com ("finish", class_run, finish_command, _("\ |
2252 | Execute until selected stack frame returns.\n\ | |
2253 | Upon return, the value returned is printed and put in the value history.")); | |
0e479716 | 2254 | add_com_alias ("fin", "finish", class_run, 1); |
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 | ||
700b53b1 TT |
2329 | c = add_com ("interrupt", class_run, interrupt_target_command, |
2330 | _("Interrupt the execution of the debugged program.")); | |
2331 | set_cmd_async_ok (c); | |
43ff13b4 | 2332 | |
1bedd215 AC |
2333 | add_info ("registers", nofp_registers_info, _("\ |
2334 | List of integer registers and their contents, for selected stack frame.\n\ | |
2335 | Register name as argument means describe only that register.")); | |
7194c49b | 2336 | add_info_alias ("r", "registers", 1); |
c906108c SS |
2337 | |
2338 | if (xdb_commands) | |
1bedd215 AC |
2339 | add_com ("lr", class_info, nofp_registers_info, _("\ |
2340 | List of integer registers and their contents, for selected stack frame.\n\ | |
2341 | Register name as argument means describe only that register.")); | |
2342 | add_info ("all-registers", all_registers_info, _("\ | |
2343 | List of all registers and their contents, for selected stack frame.\n\ | |
2344 | Register name as argument means describe only that register.")); | |
c906108c SS |
2345 | |
2346 | add_info ("program", program_info, | |
1bedd215 | 2347 | _("Execution status of the program.")); |
c906108c SS |
2348 | |
2349 | add_info ("float", float_info, | |
1bedd215 | 2350 | _("Print the status of the floating point unit\n")); |
c906108c | 2351 | |
e76f1f2e | 2352 | add_info ("vector", vector_info, |
1bedd215 | 2353 | _("Print the status of the vector unit\n")); |
e76f1f2e | 2354 | |
c906108c SS |
2355 | inferior_environ = make_environ (); |
2356 | init_environ (inferior_environ); | |
2357 | } |