Commit | Line | Data |
---|---|---|
ee0613d1 JG |
1 | /* Memory-access and commands for "inferior" (child) process, for GDB. |
2 | Copyright 1986, 1987, 1988, 1989, 1991, 1992 Free Software Foundation, Inc. | |
bd5635a1 RP |
3 | |
4 | This file is part of GDB. | |
5 | ||
ee0613d1 | 6 | This program is free software; you can redistribute it and/or modify |
bd5635a1 | 7 | it under the terms of the GNU General Public License as published by |
ee0613d1 JG |
8 | the Free Software Foundation; either version 2 of the License, or |
9 | (at your option) any later version. | |
bd5635a1 | 10 | |
ee0613d1 | 11 | This program is distributed in the hope that it will be useful, |
bd5635a1 RP |
12 | but WITHOUT ANY WARRANTY; without even the implied warranty of |
13 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
14 | GNU General Public License for more details. | |
15 | ||
16 | You should have received a copy of the GNU General Public License | |
ee0613d1 JG |
17 | along with this program; if not, write to the Free Software |
18 | Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. */ | |
bd5635a1 | 19 | |
1304f099 | 20 | #include "defs.h" |
bd5635a1 RP |
21 | #include <signal.h> |
22 | #include <sys/param.h> | |
23 | #include <string.h> | |
bd5635a1 | 24 | #include "symtab.h" |
1304f099 | 25 | #include "gdbtypes.h" |
bd5635a1 RP |
26 | #include "frame.h" |
27 | #include "inferior.h" | |
28 | #include "environ.h" | |
29 | #include "value.h" | |
30 | #include "gdbcmd.h" | |
31 | #include "gdbcore.h" | |
32 | #include "target.h" | |
33 | ||
1304f099 JG |
34 | static void |
35 | continue_command PARAMS ((char *, int)); | |
36 | ||
37 | static void | |
38 | until_next_command PARAMS ((int)); | |
39 | ||
40 | static void | |
41 | until_command PARAMS ((char *, int)); | |
42 | ||
43 | static void | |
44 | path_info PARAMS ((char *, int)); | |
45 | ||
46 | static void | |
47 | path_command PARAMS ((char *, int)); | |
48 | ||
49 | static void | |
50 | unset_command PARAMS ((char *, int)); | |
51 | ||
52 | static void | |
53 | float_info PARAMS ((char *, int)); | |
54 | ||
55 | static void | |
56 | detach_command PARAMS ((char *, int)); | |
57 | ||
58 | static void | |
59 | nofp_registers_info PARAMS ((char *, int)); | |
60 | ||
61 | static void | |
62 | all_registers_info PARAMS ((char *, int)); | |
63 | ||
64 | static void | |
65 | registers_info PARAMS ((char *, int)); | |
66 | ||
67 | static void | |
68 | do_registers_info PARAMS ((int, int)); | |
69 | ||
70 | static void | |
71 | unset_environment_command PARAMS ((char *, int)); | |
72 | ||
73 | static void | |
74 | set_environment_command PARAMS ((char *, int)); | |
75 | ||
76 | static void | |
77 | environment_info PARAMS ((char *, int)); | |
78 | ||
79 | static void | |
80 | program_info PARAMS ((char *, int)); | |
81 | ||
82 | static void | |
83 | finish_command PARAMS ((char *, int)); | |
84 | ||
85 | static void | |
86 | signal_command PARAMS ((char *, int)); | |
87 | ||
88 | static void | |
89 | jump_command PARAMS ((char *, int)); | |
90 | ||
91 | static void | |
92 | step_1 PARAMS ((int, int, char *)); | |
93 | ||
94 | static void | |
95 | nexti_command PARAMS ((char *, int)); | |
bd5635a1 | 96 | |
1304f099 JG |
97 | static void |
98 | stepi_command PARAMS ((char *, int)); | |
99 | ||
100 | static void | |
101 | next_command PARAMS ((char *, int)); | |
102 | ||
103 | static void | |
104 | step_command PARAMS ((char *, int)); | |
105 | ||
106 | static void | |
107 | run_command PARAMS ((char *, int)); | |
bd5635a1 RP |
108 | |
109 | #define ERROR_NO_INFERIOR \ | |
110 | if (!target_has_execution) error ("The program is not being run."); | |
111 | ||
112 | /* String containing arguments to give to the program, separated by spaces. | |
113 | Empty string (pointer to '\0') means no args. */ | |
114 | ||
115 | static char *inferior_args; | |
116 | ||
117 | /* File name for default use for standard in/out in the inferior. */ | |
118 | ||
119 | char *inferior_io_terminal; | |
120 | ||
121 | /* Pid of our debugged inferior, or 0 if no inferior now. | |
122 | Since various parts of infrun.c test this to see whether there is a program | |
123 | being debugged it should be nonzero (currently 3 is used) for remote | |
124 | debugging. */ | |
125 | ||
126 | int inferior_pid; | |
127 | ||
128 | /* Last signal that the inferior received (why it stopped). */ | |
129 | ||
130 | int stop_signal; | |
131 | ||
132 | /* Address at which inferior stopped. */ | |
133 | ||
134 | CORE_ADDR stop_pc; | |
135 | ||
136 | /* Stack frame when program stopped. */ | |
137 | ||
138 | FRAME_ADDR stop_frame_address; | |
139 | ||
140 | /* Chain containing status of breakpoint(s) that we have stopped at. */ | |
141 | ||
142 | bpstat stop_bpstat; | |
143 | ||
144 | /* Flag indicating that a command has proceeded the inferior past the | |
145 | current breakpoint. */ | |
146 | ||
147 | int breakpoint_proceeded; | |
148 | ||
149 | /* Nonzero if stopped due to a step command. */ | |
150 | ||
151 | int stop_step; | |
152 | ||
153 | /* Nonzero if stopped due to completion of a stack dummy routine. */ | |
154 | ||
155 | int stop_stack_dummy; | |
156 | ||
157 | /* Nonzero if stopped due to a random (unexpected) signal in inferior | |
158 | process. */ | |
159 | ||
160 | int stopped_by_random_signal; | |
161 | ||
162 | /* Range to single step within. | |
163 | If this is nonzero, respond to a single-step signal | |
164 | by continuing to step if the pc is in this range. */ | |
165 | ||
166 | CORE_ADDR step_range_start; /* Inclusive */ | |
167 | CORE_ADDR step_range_end; /* Exclusive */ | |
168 | ||
169 | /* Stack frame address as of when stepping command was issued. | |
170 | This is how we know when we step into a subroutine call, | |
171 | and how to set the frame for the breakpoint used to step out. */ | |
172 | ||
173 | FRAME_ADDR step_frame_address; | |
174 | ||
175 | /* 1 means step over all subroutine calls. | |
176 | -1 means step over calls to undebuggable functions. */ | |
177 | ||
178 | int step_over_calls; | |
179 | ||
180 | /* If stepping, nonzero means step count is > 1 | |
181 | so don't print frame next time inferior stops | |
182 | if it stops due to stepping. */ | |
183 | ||
184 | int step_multi; | |
185 | ||
186 | /* Environment to use for running inferior, | |
187 | in format described in environ.h. */ | |
188 | ||
189 | struct environ *inferior_environ; | |
190 | ||
bd5635a1 | 191 | \f |
e1ce8aa5 | 192 | /* ARGSUSED */ |
bd5635a1 RP |
193 | void |
194 | tty_command (file, from_tty) | |
195 | char *file; | |
196 | int from_tty; | |
197 | { | |
198 | if (file == 0) | |
199 | error_no_arg ("terminal name for running target process"); | |
200 | ||
201 | inferior_io_terminal = savestring (file, strlen (file)); | |
202 | } | |
203 | ||
204 | static void | |
205 | run_command (args, from_tty) | |
206 | char *args; | |
207 | int from_tty; | |
208 | { | |
209 | char *exec_file; | |
210 | ||
211 | dont_repeat (); | |
212 | ||
213 | if (inferior_pid) | |
214 | { | |
215 | if ( | |
216 | !query ("The program being debugged has been started already.\n\ | |
217 | Start it from the beginning? ")) | |
218 | error ("Program not restarted."); | |
ee0613d1 | 219 | target_kill (); |
bd5635a1 RP |
220 | } |
221 | ||
222 | exec_file = (char *) get_exec_file (0); | |
223 | ||
1304f099 | 224 | /* The exec file is re-read every time we do a generic_mourn_inferior, so |
bd5635a1 RP |
225 | we just have to worry about the symbol file. */ |
226 | reread_symbols (); | |
227 | ||
228 | if (args) | |
229 | { | |
230 | char *cmd; | |
ee0613d1 | 231 | cmd = concat ("set args ", args, NULL); |
bd5635a1 RP |
232 | make_cleanup (free, cmd); |
233 | execute_command (cmd, from_tty); | |
234 | } | |
235 | ||
236 | if (from_tty) | |
237 | { | |
1304f099 | 238 | printf_filtered ("Starting program: %s %s\n", |
bd5635a1 RP |
239 | exec_file? exec_file: "", inferior_args); |
240 | fflush (stdout); | |
241 | } | |
242 | ||
243 | target_create_inferior (exec_file, inferior_args, | |
244 | environ_vector (inferior_environ)); | |
245 | } | |
246 | \f | |
1304f099 | 247 | static void |
bd5635a1 RP |
248 | continue_command (proc_count_exp, from_tty) |
249 | char *proc_count_exp; | |
250 | int from_tty; | |
251 | { | |
252 | ERROR_NO_INFERIOR; | |
253 | ||
254 | /* If have argument, set proceed count of breakpoint we stopped at. */ | |
255 | ||
256 | if (proc_count_exp != NULL) | |
257 | { | |
258 | bpstat bs = stop_bpstat; | |
259 | int num = bpstat_num (&bs); | |
260 | if (num == 0 && from_tty) | |
261 | { | |
262 | printf_filtered | |
263 | ("Not stopped at any breakpoint; argument ignored.\n"); | |
264 | } | |
265 | while (num != 0) | |
266 | { | |
267 | set_ignore_count (num, | |
268 | parse_and_eval_address (proc_count_exp) - 1, | |
269 | from_tty); | |
270 | /* set_ignore_count prints a message ending with a period. | |
271 | So print two spaces before "Continuing.". */ | |
272 | if (from_tty) | |
1304f099 | 273 | printf_filtered (" "); |
bd5635a1 RP |
274 | num = bpstat_num (&bs); |
275 | } | |
276 | } | |
277 | ||
278 | if (from_tty) | |
1304f099 | 279 | printf_filtered ("Continuing.\n"); |
bd5635a1 RP |
280 | |
281 | clear_proceed_status (); | |
282 | ||
283 | proceed ((CORE_ADDR) -1, -1, 0); | |
284 | } | |
285 | \f | |
286 | /* Step until outside of current statement. */ | |
bd5635a1 | 287 | |
e1ce8aa5 | 288 | /* ARGSUSED */ |
bd5635a1 RP |
289 | static void |
290 | step_command (count_string, from_tty) | |
1304f099 | 291 | char *count_string; |
bd5635a1 RP |
292 | int from_tty; |
293 | { | |
294 | step_1 (0, 0, count_string); | |
295 | } | |
296 | ||
297 | /* Likewise, but skip over subroutine calls as if single instructions. */ | |
298 | ||
e1ce8aa5 | 299 | /* ARGSUSED */ |
bd5635a1 RP |
300 | static void |
301 | next_command (count_string, from_tty) | |
1304f099 | 302 | char *count_string; |
bd5635a1 RP |
303 | int from_tty; |
304 | { | |
305 | step_1 (1, 0, count_string); | |
306 | } | |
307 | ||
308 | /* Likewise, but step only one instruction. */ | |
309 | ||
e1ce8aa5 | 310 | /* ARGSUSED */ |
bd5635a1 RP |
311 | static void |
312 | stepi_command (count_string, from_tty) | |
1304f099 | 313 | char *count_string; |
bd5635a1 RP |
314 | int from_tty; |
315 | { | |
316 | step_1 (0, 1, count_string); | |
317 | } | |
318 | ||
e1ce8aa5 | 319 | /* ARGSUSED */ |
bd5635a1 RP |
320 | static void |
321 | nexti_command (count_string, from_tty) | |
1304f099 | 322 | char *count_string; |
bd5635a1 RP |
323 | int from_tty; |
324 | { | |
325 | step_1 (1, 1, count_string); | |
326 | } | |
327 | ||
328 | static void | |
329 | step_1 (skip_subroutines, single_inst, count_string) | |
330 | int skip_subroutines; | |
331 | int single_inst; | |
332 | char *count_string; | |
333 | { | |
334 | register int count = 1; | |
335 | FRAME fr; | |
1304f099 | 336 | struct cleanup *cleanups = 0; |
bd5635a1 RP |
337 | |
338 | ERROR_NO_INFERIOR; | |
339 | count = count_string ? parse_and_eval_address (count_string) : 1; | |
340 | ||
1304f099 JG |
341 | if (!single_inst || skip_subroutines) /* leave si command alone */ |
342 | { | |
343 | enable_longjmp_breakpoint(); | |
344 | cleanups = make_cleanup(disable_longjmp_breakpoint, 0); | |
345 | } | |
346 | ||
bd5635a1 RP |
347 | for (; count > 0; count--) |
348 | { | |
349 | clear_proceed_status (); | |
350 | ||
bd5635a1 RP |
351 | fr = get_current_frame (); |
352 | if (!fr) /* Avoid coredump here. Why tho? */ | |
353 | error ("No current frame"); | |
354 | step_frame_address = FRAME_FP (fr); | |
355 | ||
356 | if (! single_inst) | |
357 | { | |
358 | find_pc_line_pc_range (stop_pc, &step_range_start, &step_range_end); | |
359 | if (step_range_end == 0) | |
360 | { | |
1304f099 | 361 | struct minimal_symbol *msymbol; |
bd5635a1 | 362 | |
1304f099 | 363 | msymbol = lookup_minimal_symbol_by_pc (stop_pc); |
bd5635a1 | 364 | target_terminal_ours (); |
1304f099 | 365 | printf_filtered ("Current function has no line number information.\n"); |
bd5635a1 RP |
366 | fflush (stdout); |
367 | ||
368 | /* No info or after _etext ("Can't happen") */ | |
1304f099 | 369 | if (msymbol == NULL || (msymbol + 1) -> name == NULL) |
bd5635a1 RP |
370 | error ("No data available on pc function."); |
371 | ||
1304f099 | 372 | printf_filtered ("Single stepping until function exit.\n"); |
bd5635a1 RP |
373 | fflush (stdout); |
374 | ||
1304f099 JG |
375 | step_range_start = msymbol -> address; |
376 | step_range_end = (msymbol + 1) -> address; | |
bd5635a1 RP |
377 | } |
378 | } | |
379 | else | |
380 | { | |
381 | /* Say we are stepping, but stop after one insn whatever it does. | |
382 | Don't step through subroutine calls even to undebuggable | |
383 | functions. */ | |
384 | step_range_start = step_range_end = 1; | |
385 | if (!skip_subroutines) | |
386 | step_over_calls = 0; | |
387 | } | |
388 | ||
389 | if (skip_subroutines) | |
390 | step_over_calls = 1; | |
391 | ||
392 | step_multi = (count > 1); | |
393 | proceed ((CORE_ADDR) -1, -1, 1); | |
394 | if (! stop_step) | |
395 | break; | |
396 | #if defined (SHIFT_INST_REGS) | |
397 | write_register (NNPC_REGNUM, read_register (NPC_REGNUM)); | |
398 | write_register (NPC_REGNUM, read_register (PC_REGNUM)); | |
399 | #endif | |
400 | } | |
1304f099 JG |
401 | |
402 | if (!single_inst || skip_subroutines) | |
403 | do_cleanups(cleanups); | |
bd5635a1 RP |
404 | } |
405 | \f | |
406 | /* Continue program at specified address. */ | |
407 | ||
408 | static void | |
409 | jump_command (arg, from_tty) | |
410 | char *arg; | |
411 | int from_tty; | |
412 | { | |
413 | register CORE_ADDR addr; | |
414 | struct symtabs_and_lines sals; | |
415 | struct symtab_and_line sal; | |
416 | ||
417 | ERROR_NO_INFERIOR; | |
418 | ||
419 | if (!arg) | |
420 | error_no_arg ("starting address"); | |
421 | ||
422 | sals = decode_line_spec_1 (arg, 1); | |
423 | if (sals.nelts != 1) | |
424 | { | |
425 | error ("Unreasonable jump request"); | |
426 | } | |
427 | ||
428 | sal = sals.sals[0]; | |
1304f099 | 429 | free ((PTR)sals.sals); |
bd5635a1 RP |
430 | |
431 | if (sal.symtab == 0 && sal.pc == 0) | |
432 | error ("No source file has been specified."); | |
433 | ||
ee0613d1 | 434 | resolve_sal_pc (&sal); /* May error out */ |
bd5635a1 RP |
435 | |
436 | { | |
437 | struct symbol *fn = get_frame_function (get_current_frame ()); | |
438 | struct symbol *sfn = find_pc_function (sal.pc); | |
439 | if (fn != 0 && sfn != fn | |
440 | && ! query ("Line %d is not in `%s'. Jump anyway? ", | |
441 | sal.line, SYMBOL_NAME (fn))) | |
442 | error ("Not confirmed."); | |
443 | } | |
444 | ||
bd5635a1 RP |
445 | addr = ADDR_BITS_SET (sal.pc); |
446 | ||
447 | if (from_tty) | |
1304f099 | 448 | printf_filtered ("Continuing at %s.\n", local_hex_string(addr)); |
bd5635a1 RP |
449 | |
450 | clear_proceed_status (); | |
451 | proceed (addr, 0, 0); | |
452 | } | |
453 | ||
454 | /* Continue program giving it specified signal. */ | |
455 | ||
456 | static void | |
457 | signal_command (signum_exp, from_tty) | |
458 | char *signum_exp; | |
459 | int from_tty; | |
460 | { | |
461 | register int signum; | |
462 | ||
463 | dont_repeat (); /* Too dangerous. */ | |
464 | ERROR_NO_INFERIOR; | |
465 | ||
466 | if (!signum_exp) | |
467 | error_no_arg ("signal number"); | |
468 | ||
469 | signum = parse_and_eval_address (signum_exp); | |
470 | ||
471 | if (from_tty) | |
1304f099 | 472 | printf_filtered ("Continuing with signal %d.\n", signum); |
bd5635a1 RP |
473 | |
474 | clear_proceed_status (); | |
475 | proceed (stop_pc, signum, 0); | |
476 | } | |
477 | ||
478 | /* Execute a "stack dummy", a piece of code stored in the stack | |
479 | by the debugger to be executed in the inferior. | |
480 | ||
481 | To call: first, do PUSH_DUMMY_FRAME. | |
482 | Then push the contents of the dummy. It should end with a breakpoint insn. | |
483 | Then call here, passing address at which to start the dummy. | |
484 | ||
485 | The contents of all registers are saved before the dummy frame is popped | |
486 | and copied into the buffer BUFFER. | |
487 | ||
488 | The dummy's frame is automatically popped whenever that break is hit. | |
489 | If that is the first time the program stops, run_stack_dummy | |
490 | returns to its caller with that frame already gone. | |
491 | Otherwise, the caller never gets returned to. */ | |
492 | ||
ee0613d1 | 493 | /* DEBUG HOOK: 4 => return instead of letting the stack dummy run. */ |
bd5635a1 RP |
494 | |
495 | static int stack_dummy_testing = 0; | |
496 | ||
497 | void | |
498 | run_stack_dummy (addr, buffer) | |
499 | CORE_ADDR addr; | |
500 | char buffer[REGISTER_BYTES]; | |
501 | { | |
502 | /* Now proceed, having reached the desired place. */ | |
503 | clear_proceed_status (); | |
504 | if (stack_dummy_testing & 4) | |
505 | { | |
506 | POP_FRAME; | |
507 | return; | |
508 | } | |
509 | proceed_to_finish = 1; /* We want stop_registers, please... */ | |
510 | proceed (addr, 0, 0); | |
511 | ||
512 | if (!stop_stack_dummy) | |
513 | /* This used to say | |
514 | "Cannot continue previously requested operation". */ | |
515 | error ("\ | |
516 | The program being debugged stopped while in a function called from GDB.\n\ | |
517 | The expression which contained the function call has been discarded."); | |
518 | ||
519 | /* On return, the stack dummy has been popped already. */ | |
520 | ||
521 | bcopy (stop_registers, buffer, sizeof stop_registers); | |
522 | } | |
523 | \f | |
524 | /* Proceed until we reach a different source line with pc greater than | |
525 | our current one or exit the function. We skip calls in both cases. | |
526 | ||
527 | Note that eventually this command should probably be changed so | |
528 | that only source lines are printed out when we hit the breakpoint | |
529 | we set. I'm going to postpone this until after a hopeful rewrite | |
530 | of wait_for_inferior and the proceed status code. -- randy */ | |
531 | ||
e1ce8aa5 | 532 | /* ARGSUSED */ |
1304f099 | 533 | static void |
bd5635a1 RP |
534 | until_next_command (from_tty) |
535 | int from_tty; | |
536 | { | |
537 | FRAME frame; | |
538 | CORE_ADDR pc; | |
539 | struct symbol *func; | |
540 | struct symtab_and_line sal; | |
541 | ||
542 | clear_proceed_status (); | |
543 | ||
544 | frame = get_current_frame (); | |
545 | ||
546 | /* Step until either exited from this function or greater | |
547 | than the current line (if in symbolic section) or pc (if | |
548 | not). */ | |
549 | ||
550 | pc = read_pc (); | |
551 | func = find_pc_function (pc); | |
552 | ||
553 | if (!func) | |
554 | { | |
1304f099 | 555 | struct minimal_symbol *msymbol = lookup_minimal_symbol_by_pc (pc); |
bd5635a1 | 556 | |
1304f099 | 557 | if (msymbol == NULL) |
bd5635a1 RP |
558 | error ("Execution is not within a known function."); |
559 | ||
1304f099 | 560 | step_range_start = msymbol -> address; |
bd5635a1 RP |
561 | step_range_end = pc; |
562 | } | |
563 | else | |
564 | { | |
565 | sal = find_pc_line (pc, 0); | |
566 | ||
567 | step_range_start = BLOCK_START (SYMBOL_BLOCK_VALUE (func)); | |
568 | step_range_end = sal.end; | |
569 | } | |
570 | ||
571 | step_over_calls = 1; | |
572 | step_frame_address = FRAME_FP (frame); | |
573 | ||
574 | step_multi = 0; /* Only one call to proceed */ | |
575 | ||
576 | proceed ((CORE_ADDR) -1, -1, 1); | |
577 | } | |
578 | ||
1304f099 | 579 | static void |
bd5635a1 RP |
580 | until_command (arg, from_tty) |
581 | char *arg; | |
582 | int from_tty; | |
583 | { | |
584 | if (!target_has_execution) | |
585 | error ("The program is not running."); | |
586 | if (arg) | |
587 | until_break_command (arg, from_tty); | |
588 | else | |
589 | until_next_command (from_tty); | |
590 | } | |
591 | \f | |
592 | /* "finish": Set a temporary breakpoint at the place | |
593 | the selected frame will return to, then continue. */ | |
594 | ||
595 | static void | |
596 | finish_command (arg, from_tty) | |
597 | char *arg; | |
598 | int from_tty; | |
599 | { | |
600 | struct symtab_and_line sal; | |
601 | register FRAME frame; | |
602 | struct frame_info *fi; | |
603 | register struct symbol *function; | |
1304f099 JG |
604 | struct breakpoint *breakpoint; |
605 | struct cleanup *old_chain; | |
bd5635a1 RP |
606 | |
607 | if (arg) | |
608 | error ("The \"finish\" command does not take any arguments."); | |
609 | if (!target_has_execution) | |
610 | error ("The program is not running."); | |
777bef06 JK |
611 | if (selected_frame == NULL) |
612 | error ("No selected frame."); | |
bd5635a1 RP |
613 | |
614 | frame = get_prev_frame (selected_frame); | |
615 | if (frame == 0) | |
616 | error ("\"finish\" not meaningful in the outermost frame."); | |
617 | ||
618 | clear_proceed_status (); | |
619 | ||
620 | fi = get_frame_info (frame); | |
621 | sal = find_pc_line (fi->pc, 0); | |
622 | sal.pc = fi->pc; | |
1304f099 JG |
623 | |
624 | breakpoint = set_momentary_breakpoint (sal, frame, bp_finish); | |
625 | ||
626 | old_chain = make_cleanup(delete_breakpoint, breakpoint); | |
bd5635a1 RP |
627 | |
628 | /* Find the function we will return from. */ | |
629 | ||
630 | fi = get_frame_info (selected_frame); | |
631 | function = find_pc_function (fi->pc); | |
632 | ||
ee0613d1 JG |
633 | /* Print info on the selected frame, including level number |
634 | but not source. */ | |
bd5635a1 RP |
635 | if (from_tty) |
636 | { | |
ee0613d1 JG |
637 | printf_filtered ("Run till exit from "); |
638 | print_stack_frame (selected_frame, selected_frame_level, 0); | |
bd5635a1 RP |
639 | } |
640 | ||
641 | proceed_to_finish = 1; /* We want stop_registers, please... */ | |
642 | proceed ((CORE_ADDR) -1, -1, 0); | |
643 | ||
1304f099 JG |
644 | /* Did we stop at our breakpoint? */ |
645 | if (bpstat_find_breakpoint(stop_bpstat, breakpoint) != NULL | |
646 | && function != 0) | |
bd5635a1 RP |
647 | { |
648 | struct type *value_type; | |
649 | register value val; | |
650 | CORE_ADDR funcaddr; | |
651 | ||
652 | value_type = TYPE_TARGET_TYPE (SYMBOL_TYPE (function)); | |
653 | if (!value_type) | |
654 | fatal ("internal: finish_command: function has no target type"); | |
655 | ||
656 | if (TYPE_CODE (value_type) == TYPE_CODE_VOID) | |
657 | return; | |
658 | ||
659 | funcaddr = BLOCK_START (SYMBOL_BLOCK_VALUE (function)); | |
660 | ||
661 | val = value_being_returned (value_type, stop_registers, | |
662 | using_struct_return (value_of_variable (function), | |
663 | funcaddr, | |
664 | value_type, | |
665 | BLOCK_GCC_COMPILED (SYMBOL_BLOCK_VALUE (function)))); | |
666 | ||
ee0613d1 | 667 | printf_filtered ("Value returned is $%d = ", record_latest_value (val)); |
bd5635a1 | 668 | value_print (val, stdout, 0, Val_no_prettyprint); |
ee0613d1 | 669 | printf_filtered ("\n"); |
bd5635a1 | 670 | } |
1304f099 | 671 | do_cleanups(old_chain); |
bd5635a1 RP |
672 | } |
673 | \f | |
e1ce8aa5 | 674 | /* ARGSUSED */ |
bd5635a1 RP |
675 | static void |
676 | program_info (args, from_tty) | |
677 | char *args; | |
678 | int from_tty; | |
679 | { | |
680 | bpstat bs = stop_bpstat; | |
681 | int num = bpstat_num (&bs); | |
682 | ||
683 | if (!target_has_execution) | |
684 | { | |
1304f099 | 685 | printf_filtered ("The program being debugged is not being run.\n"); |
bd5635a1 RP |
686 | return; |
687 | } | |
688 | ||
689 | target_files_info (); | |
1304f099 | 690 | printf_filtered ("Program stopped at %s.\n", local_hex_string(stop_pc)); |
bd5635a1 | 691 | if (stop_step) |
1304f099 | 692 | printf_filtered ("It stopped after being stepped.\n"); |
bd5635a1 RP |
693 | else if (num != 0) |
694 | { | |
695 | /* There may be several breakpoints in the same place, so this | |
696 | isn't as strange as it seems. */ | |
697 | while (num != 0) | |
698 | { | |
699 | if (num < 0) | |
1304f099 | 700 | printf_filtered ("It stopped at a breakpoint that has since been deleted.\n"); |
bd5635a1 | 701 | else |
1304f099 | 702 | printf_filtered ("It stopped at breakpoint %d.\n", num); |
bd5635a1 RP |
703 | num = bpstat_num (&bs); |
704 | } | |
705 | } | |
706 | else if (stop_signal) { | |
707 | #ifdef PRINT_RANDOM_SIGNAL | |
708 | PRINT_RANDOM_SIGNAL (stop_signal); | |
709 | #else | |
1304f099 JG |
710 | printf_filtered ("It stopped with signal %d (%s).\n", |
711 | stop_signal, safe_strsignal (stop_signal)); | |
bd5635a1 RP |
712 | #endif |
713 | } | |
714 | ||
715 | if (!from_tty) | |
1304f099 | 716 | printf_filtered ("Type \"info stack\" or \"info registers\" for more information.\n"); |
bd5635a1 RP |
717 | } |
718 | \f | |
719 | static void | |
1304f099 | 720 | environment_info (var, from_tty) |
bd5635a1 | 721 | char *var; |
1304f099 | 722 | int from_tty; |
bd5635a1 RP |
723 | { |
724 | if (var) | |
725 | { | |
726 | register char *val = get_in_environ (inferior_environ, var); | |
727 | if (val) | |
1304f099 | 728 | printf_filtered ("%s = %s\n", var, val); |
bd5635a1 | 729 | else |
1304f099 | 730 | printf_filtered ("Environment variable \"%s\" not defined.\n", var); |
bd5635a1 RP |
731 | } |
732 | else | |
733 | { | |
734 | register char **vector = environ_vector (inferior_environ); | |
735 | while (*vector) | |
1304f099 | 736 | printf_filtered ("%s\n", *vector++); |
bd5635a1 RP |
737 | } |
738 | } | |
739 | ||
740 | static void | |
1304f099 | 741 | set_environment_command (arg, from_tty) |
bd5635a1 | 742 | char *arg; |
1304f099 | 743 | int from_tty; |
bd5635a1 RP |
744 | { |
745 | register char *p, *val, *var; | |
746 | int nullset = 0; | |
747 | ||
748 | if (arg == 0) | |
749 | error_no_arg ("environment variable and value"); | |
750 | ||
751 | /* Find seperation between variable name and value */ | |
752 | p = (char *) strchr (arg, '='); | |
753 | val = (char *) strchr (arg, ' '); | |
754 | ||
755 | if (p != 0 && val != 0) | |
756 | { | |
757 | /* We have both a space and an equals. If the space is before the | |
758 | equals and the only thing between the two is more space, use | |
759 | the equals */ | |
760 | if (p > val) | |
761 | while (*val == ' ') | |
762 | val++; | |
763 | ||
764 | /* Take the smaller of the two. If there was space before the | |
765 | "=", they will be the same right now. */ | |
766 | p = arg + min (p - arg, val - arg); | |
767 | } | |
768 | else if (val != 0 && p == 0) | |
769 | p = val; | |
770 | ||
771 | if (p == arg) | |
772 | error_no_arg ("environment variable to set"); | |
773 | ||
774 | if (p == 0 || p[1] == 0) | |
775 | { | |
776 | nullset = 1; | |
777 | if (p == 0) | |
778 | p = arg + strlen (arg); /* So that savestring below will work */ | |
779 | } | |
780 | else | |
781 | { | |
782 | /* Not setting variable value to null */ | |
783 | val = p + 1; | |
784 | while (*val == ' ' || *val == '\t') | |
785 | val++; | |
786 | } | |
787 | ||
788 | while (p != arg && (p[-1] == ' ' || p[-1] == '\t')) p--; | |
789 | ||
790 | var = savestring (arg, p - arg); | |
791 | if (nullset) | |
792 | { | |
1304f099 | 793 | printf_filtered ("Setting environment variable \"%s\" to null value.\n", var); |
bd5635a1 RP |
794 | set_in_environ (inferior_environ, var, ""); |
795 | } | |
796 | else | |
797 | set_in_environ (inferior_environ, var, val); | |
798 | free (var); | |
799 | } | |
800 | ||
801 | static void | |
802 | unset_environment_command (var, from_tty) | |
803 | char *var; | |
804 | int from_tty; | |
805 | { | |
806 | if (var == 0) | |
807 | { | |
808 | /* If there is no argument, delete all environment variables. | |
809 | Ask for confirmation if reading from the terminal. */ | |
810 | if (!from_tty || query ("Delete all environment variables? ")) | |
811 | { | |
812 | free_environ (inferior_environ); | |
813 | inferior_environ = make_environ (); | |
814 | } | |
815 | } | |
816 | else | |
817 | unset_in_environ (inferior_environ, var); | |
818 | } | |
819 | ||
820 | /* Handle the execution path (PATH variable) */ | |
821 | ||
822 | const static char path_var_name[] = "PATH"; | |
823 | ||
e1ce8aa5 | 824 | /* ARGSUSED */ |
1304f099 | 825 | static void |
bd5635a1 RP |
826 | path_info (args, from_tty) |
827 | char *args; | |
828 | int from_tty; | |
829 | { | |
1304f099 | 830 | printf_filtered ("Executable and object file path: %s\n", |
bd5635a1 RP |
831 | get_in_environ (inferior_environ, path_var_name)); |
832 | } | |
833 | ||
834 | /* Add zero or more directories to the front of the execution path. */ | |
835 | ||
1304f099 | 836 | static void |
bd5635a1 RP |
837 | path_command (dirname, from_tty) |
838 | char *dirname; | |
839 | int from_tty; | |
840 | { | |
841 | char *exec_path; | |
842 | ||
843 | dont_repeat (); | |
844 | exec_path = strsave (get_in_environ (inferior_environ, path_var_name)); | |
e1ce8aa5 | 845 | mod_path (dirname, &exec_path); |
bd5635a1 RP |
846 | set_in_environ (inferior_environ, path_var_name, exec_path); |
847 | free (exec_path); | |
848 | if (from_tty) | |
e1ce8aa5 | 849 | path_info ((char *)NULL, from_tty); |
bd5635a1 RP |
850 | } |
851 | \f | |
852 | CORE_ADDR | |
853 | read_pc () | |
854 | { | |
855 | return ADDR_BITS_REMOVE ((CORE_ADDR) read_register (PC_REGNUM)); | |
856 | } | |
857 | ||
858 | void | |
859 | write_pc (val) | |
860 | CORE_ADDR val; | |
861 | { | |
862 | write_register (PC_REGNUM, (long) val); | |
863 | #ifdef NPC_REGNUM | |
864 | write_register (NPC_REGNUM, (long) val+4); | |
865 | #endif | |
866 | pc_changed = 0; | |
867 | } | |
868 | ||
1304f099 | 869 | const char * const reg_names[] = REGISTER_NAMES; |
bd5635a1 RP |
870 | |
871 | /* Print out the machine register regnum. If regnum is -1, | |
ee0613d1 JG |
872 | print all registers (fpregs == 1) or all non-float registers |
873 | (fpregs == 0). | |
874 | ||
bd5635a1 RP |
875 | For most machines, having all_registers_info() print the |
876 | register(s) one per line is good enough. If a different format | |
ee0613d1 | 877 | is required, (eg, for MIPS or Pyramid 90x, which both have |
bd5635a1 | 878 | lots of regs), or there is an existing convention for showing |
ee0613d1 | 879 | all the registers, define the macro DO_REGISTERS_INFO(regnum, fp) |
bd5635a1 | 880 | to provide that format. */ |
ee0613d1 | 881 | |
bd5635a1 | 882 | #if !defined (DO_REGISTERS_INFO) |
ee0613d1 JG |
883 | #define DO_REGISTERS_INFO(regnum, fp) do_registers_info(regnum, fp) |
884 | static void | |
885 | do_registers_info (regnum, fpregs) | |
bd5635a1 | 886 | int regnum; |
ee0613d1 | 887 | int fpregs; |
bd5635a1 RP |
888 | { |
889 | register int i; | |
890 | ||
bd5635a1 RP |
891 | for (i = 0; i < NUM_REGS; i++) |
892 | { | |
893 | char raw_buffer[MAX_REGISTER_RAW_SIZE]; | |
894 | char virtual_buffer[MAX_REGISTER_VIRTUAL_SIZE]; | |
895 | ||
ee0613d1 JG |
896 | /* Decide between printing all regs, nonfloat regs, or specific reg. */ |
897 | if (regnum == -1) { | |
898 | if (TYPE_CODE (REGISTER_VIRTUAL_TYPE (i)) == TYPE_CODE_FLT && !fpregs) | |
899 | continue; | |
900 | } else { | |
901 | if (i != regnum) | |
902 | continue; | |
903 | } | |
bd5635a1 RP |
904 | |
905 | fputs_filtered (reg_names[i], stdout); | |
906 | print_spaces_filtered (15 - strlen (reg_names[i]), stdout); | |
907 | ||
908 | /* Get the data in raw format, then convert also to virtual format. */ | |
909 | if (read_relative_register_raw_bytes (i, raw_buffer)) | |
910 | { | |
911 | printf_filtered ("Invalid register contents\n"); | |
912 | continue; | |
913 | } | |
914 | ||
915 | target_convert_to_virtual (i, raw_buffer, virtual_buffer); | |
916 | ||
917 | /* If virtual format is floating, print it that way, and in raw hex. */ | |
918 | if (TYPE_CODE (REGISTER_VIRTUAL_TYPE (i)) == TYPE_CODE_FLT | |
919 | && ! INVALID_FLOAT (virtual_buffer, REGISTER_VIRTUAL_SIZE (i))) | |
920 | { | |
921 | register int j; | |
922 | ||
923 | val_print (REGISTER_VIRTUAL_TYPE (i), virtual_buffer, 0, | |
924 | stdout, 0, 1, 0, Val_pretty_default); | |
925 | ||
926 | printf_filtered ("\t(raw 0x"); | |
927 | for (j = 0; j < REGISTER_RAW_SIZE (i); j++) | |
928 | printf_filtered ("%02x", (unsigned char)raw_buffer[j]); | |
929 | printf_filtered (")"); | |
930 | } | |
931 | ||
932 | /* FIXME! val_print probably can handle all of these cases now... */ | |
933 | ||
934 | /* Else if virtual format is too long for printf, | |
935 | print in hex a byte at a time. */ | |
936 | else if (REGISTER_VIRTUAL_SIZE (i) > sizeof (long)) | |
937 | { | |
938 | register int j; | |
939 | printf_filtered ("0x"); | |
940 | for (j = 0; j < REGISTER_VIRTUAL_SIZE (i); j++) | |
941 | printf_filtered ("%02x", (unsigned char)virtual_buffer[j]); | |
942 | } | |
943 | /* Else print as integer in hex and in decimal. */ | |
944 | else | |
945 | { | |
946 | val_print (REGISTER_VIRTUAL_TYPE (i), raw_buffer, 0, | |
947 | stdout, 'x', 1, 0, Val_pretty_default); | |
948 | printf_filtered ("\t"); | |
949 | val_print (REGISTER_VIRTUAL_TYPE (i), raw_buffer, 0, | |
950 | stdout, 0, 1, 0, Val_pretty_default); | |
951 | } | |
952 | ||
953 | /* The SPARC wants to print even-numbered float regs as doubles | |
954 | in addition to printing them as floats. */ | |
955 | #ifdef PRINT_REGISTER_HOOK | |
956 | PRINT_REGISTER_HOOK (i); | |
957 | #endif | |
958 | ||
959 | printf_filtered ("\n"); | |
960 | } | |
961 | } | |
962 | #endif /* no DO_REGISTERS_INFO. */ | |
963 | ||
964 | static void | |
ee0613d1 | 965 | registers_info (addr_exp, fpregs) |
bd5635a1 | 966 | char *addr_exp; |
ee0613d1 | 967 | int fpregs; |
bd5635a1 RP |
968 | { |
969 | int regnum; | |
970 | ||
971 | if (!target_has_registers) | |
972 | error ("The program has no registers now."); | |
973 | ||
974 | if (addr_exp) | |
975 | { | |
976 | if (*addr_exp >= '0' && *addr_exp <= '9') | |
977 | regnum = atoi (addr_exp); | |
978 | else | |
979 | { | |
980 | register char *p = addr_exp; | |
981 | if (p[0] == '$') | |
982 | p++; | |
983 | for (regnum = 0; regnum < NUM_REGS; regnum++) | |
984 | if (!strcmp (p, reg_names[regnum])) | |
985 | break; | |
986 | if (regnum == NUM_REGS) | |
987 | error ("%s: invalid register name.", addr_exp); | |
988 | } | |
989 | } | |
990 | else | |
991 | regnum = -1; | |
992 | ||
ee0613d1 JG |
993 | DO_REGISTERS_INFO(regnum, fpregs); |
994 | } | |
995 | ||
996 | static void | |
1304f099 | 997 | all_registers_info (addr_exp, from_tty) |
ee0613d1 | 998 | char *addr_exp; |
1304f099 | 999 | int from_tty; |
ee0613d1 JG |
1000 | { |
1001 | registers_info (addr_exp, 1); | |
1002 | } | |
1003 | ||
1004 | static void | |
1304f099 | 1005 | nofp_registers_info (addr_exp, from_tty) |
ee0613d1 | 1006 | char *addr_exp; |
1304f099 | 1007 | int from_tty; |
ee0613d1 JG |
1008 | { |
1009 | registers_info (addr_exp, 0); | |
bd5635a1 RP |
1010 | } |
1011 | \f | |
1012 | /* | |
1013 | * TODO: | |
1014 | * Should save/restore the tty state since it might be that the | |
1015 | * program to be debugged was started on this tty and it wants | |
1016 | * the tty in some state other than what we want. If it's running | |
1017 | * on another terminal or without a terminal, then saving and | |
1018 | * restoring the tty state is a harmless no-op. | |
1019 | * This only needs to be done if we are attaching to a process. | |
1020 | */ | |
1021 | ||
1022 | /* | |
1023 | * attach_command -- | |
1024 | * takes a program started up outside of gdb and ``attaches'' to it. | |
1025 | * This stops it cold in its tracks and allows us to start tracing it. | |
1026 | * For this to work, we must be able to send the process a | |
1027 | * signal and we must have the same effective uid as the program. | |
1028 | */ | |
1029 | void | |
1030 | attach_command (args, from_tty) | |
1031 | char *args; | |
1032 | int from_tty; | |
1033 | { | |
f266e564 | 1034 | dont_repeat (); /* Not for the faint of heart */ |
bd5635a1 RP |
1035 | target_attach (args, from_tty); |
1036 | } | |
1037 | ||
1038 | /* | |
1039 | * detach_command -- | |
1040 | * takes a program previously attached to and detaches it. | |
1041 | * The program resumes execution and will no longer stop | |
1042 | * on signals, etc. We better not have left any breakpoints | |
1043 | * in the program or it'll die when it hits one. For this | |
1044 | * to work, it may be necessary for the process to have been | |
1045 | * previously attached. It *might* work if the program was | |
1046 | * started via the normal ptrace (PTRACE_TRACEME). | |
1047 | */ | |
1048 | ||
1049 | static void | |
1050 | detach_command (args, from_tty) | |
1051 | char *args; | |
1052 | int from_tty; | |
1053 | { | |
f266e564 | 1054 | dont_repeat (); /* Not for the faint of heart */ |
bd5635a1 RP |
1055 | target_detach (args, from_tty); |
1056 | } | |
1057 | ||
1058 | /* ARGSUSED */ | |
1059 | static void | |
1304f099 | 1060 | float_info (addr_exp, from_tty) |
bd5635a1 | 1061 | char *addr_exp; |
1304f099 | 1062 | int from_tty; |
bd5635a1 RP |
1063 | { |
1064 | #ifdef FLOAT_INFO | |
1065 | FLOAT_INFO; | |
1066 | #else | |
1304f099 | 1067 | printf_filtered ("No floating point info available for this processor.\n"); |
bd5635a1 RP |
1068 | #endif |
1069 | } | |
1070 | \f | |
f266e564 JK |
1071 | struct cmd_list_element *unsetlist = NULL; |
1072 | ||
1073 | /* ARGSUSED */ | |
1074 | static void | |
1075 | unset_command (args, from_tty) | |
1076 | char *args; | |
1077 | int from_tty; | |
1078 | { | |
1304f099 | 1079 | printf_filtered ("\"unset\" must be followed by the name of an unset subcommand.\n"); |
f266e564 JK |
1080 | help_list (unsetlist, "unset ", -1, stdout); |
1081 | } | |
1082 | ||
bd5635a1 RP |
1083 | void |
1084 | _initialize_infcmd () | |
1085 | { | |
1086 | struct cmd_list_element *c; | |
1087 | ||
1088 | add_com ("tty", class_run, tty_command, | |
1089 | "Set terminal for future runs of program being debugged."); | |
1090 | ||
1091 | add_show_from_set | |
1092 | (add_set_cmd ("args", class_run, var_string_noescape, (char *)&inferior_args, | |
1093 | ||
1094 | "Set arguments to give program being debugged when it is started.\n\ | |
1095 | Follow this command with any number of args, to be passed to the program.", | |
1096 | &setlist), | |
1097 | &showlist); | |
1098 | ||
1099 | c = add_cmd | |
1100 | ("environment", no_class, environment_info, | |
1101 | "The environment to give the program, or one variable's value.\n\ | |
1102 | With an argument VAR, prints the value of environment variable VAR to\n\ | |
1103 | give the program being debugged. With no arguments, prints the entire\n\ | |
1104 | environment to be given to the program.", &showlist); | |
1105 | c->completer = noop_completer; | |
1106 | ||
f266e564 JK |
1107 | add_prefix_cmd ("unset", no_class, unset_command, |
1108 | "Complement to certain \"set\" commands", | |
1109 | &unsetlist, "unset ", 0, &cmdlist); | |
1110 | ||
bd5635a1 RP |
1111 | c = add_cmd ("environment", class_run, unset_environment_command, |
1112 | "Cancel environment variable VAR for the program.\n\ | |
1113 | This does not affect the program until the next \"run\" command.", | |
f266e564 | 1114 | &unsetlist); |
bd5635a1 RP |
1115 | c->completer = noop_completer; |
1116 | ||
1117 | c = add_cmd ("environment", class_run, set_environment_command, | |
1118 | "Set environment variable value to give the program.\n\ | |
1119 | Arguments are VAR VALUE where VAR is variable name and VALUE is value.\n\ | |
1120 | VALUES of environment variables are uninterpreted strings.\n\ | |
1121 | This does not affect the program until the next \"run\" command.", | |
1122 | &setlist); | |
1123 | c->completer = noop_completer; | |
1124 | ||
1125 | add_com ("path", class_files, path_command, | |
1126 | "Add directory DIR(s) to beginning of search path for object files.\n\ | |
1127 | $cwd in the path means the current working directory.\n\ | |
1128 | This path is equivalent to the $PATH shell variable. It is a list of\n\ | |
1129 | directories, separated by colons. These directories are searched to find\n\ | |
1130 | fully linked executable files and separately compiled object files as needed."); | |
1131 | ||
ee0613d1 | 1132 | c = add_cmd ("paths", no_class, path_info, |
bd5635a1 RP |
1133 | "Current search path for finding object files.\n\ |
1134 | $cwd in the path means the current working directory.\n\ | |
1135 | This path is equivalent to the $PATH shell variable. It is a list of\n\ | |
1136 | directories, separated by colons. These directories are searched to find\n\ | |
ee0613d1 JG |
1137 | fully linked executable files and separately compiled object files as needed.", &showlist); |
1138 | c->completer = noop_completer; | |
bd5635a1 RP |
1139 | |
1140 | add_com ("attach", class_run, attach_command, | |
1141 | "Attach to a process or file outside of GDB.\n\ | |
1142 | This command attaches to another target, of the same type as your last\n\ | |
1143 | `target' command (`info files' will show your target stack).\n\ | |
1144 | The command may take as argument a process id or a device file.\n\ | |
1145 | For a process id, you must have permission to send the process a signal,\n\ | |
1146 | and it must have the same effective uid as the debugger.\n\ | |
1147 | When using \"attach\", you should use the \"file\" command to specify\n\ | |
1148 | the program running in the process, and to load its symbol table."); | |
1149 | ||
1150 | add_com ("detach", class_run, detach_command, | |
1151 | "Detach a process or file previously attached.\n\ | |
1152 | If a process, it is no longer traced, and it continues its execution. If you\n\ | |
1153 | were debugging a file, the file is closed and gdb no longer accesses it."); | |
1154 | ||
1155 | add_com ("signal", class_run, signal_command, | |
1156 | "Continue program giving it signal number SIGNUMBER."); | |
1157 | ||
1158 | add_com ("stepi", class_run, stepi_command, | |
1159 | "Step one instruction exactly.\n\ | |
1160 | Argument N means do this N times (or till program stops for another reason)."); | |
1161 | add_com_alias ("si", "stepi", class_alias, 0); | |
1162 | ||
1163 | add_com ("nexti", class_run, nexti_command, | |
1164 | "Step one instruction, but proceed through subroutine calls.\n\ | |
1165 | Argument N means do this N times (or till program stops for another reason)."); | |
1166 | add_com_alias ("ni", "nexti", class_alias, 0); | |
1167 | ||
1168 | add_com ("finish", class_run, finish_command, | |
1169 | "Execute until selected stack frame returns.\n\ | |
1170 | Upon return, the value returned is printed and put in the value history."); | |
1171 | ||
1172 | add_com ("next", class_run, next_command, | |
1173 | "Step program, proceeding through subroutine calls.\n\ | |
1174 | Like the \"step\" command as long as subroutine calls do not happen;\n\ | |
1175 | when they do, the call is treated as one instruction.\n\ | |
1176 | Argument N means do this N times (or till program stops for another reason)."); | |
1177 | add_com_alias ("n", "next", class_run, 1); | |
1178 | ||
1179 | add_com ("step", class_run, step_command, | |
1180 | "Step program until it reaches a different source line.\n\ | |
1181 | Argument N means do this N times (or till program stops for another reason)."); | |
1182 | add_com_alias ("s", "step", class_run, 1); | |
1183 | ||
1184 | add_com ("until", class_run, until_command, | |
1185 | "Execute until the program reaches a source line greater than the current\n\ | |
1186 | or a specified line or address or function (same args as break command).\n\ | |
1187 | Execution will also stop upon exit from the current stack frame."); | |
1188 | add_com_alias ("u", "until", class_run, 1); | |
1189 | ||
1190 | add_com ("jump", class_run, jump_command, | |
1191 | "Continue program being debugged at specified line or address.\n\ | |
1192 | Give as argument either LINENUM or *ADDR, where ADDR is an expression\n\ | |
1193 | for an address to start at."); | |
1194 | ||
1195 | add_com ("continue", class_run, continue_command, | |
1196 | "Continue program being debugged, after signal or breakpoint.\n\ | |
1197 | If proceeding from breakpoint, a number N may be used as an argument:\n\ | |
1198 | then the same breakpoint won't break until the Nth time it is reached."); | |
1199 | add_com_alias ("c", "cont", class_run, 1); | |
1200 | add_com_alias ("fg", "cont", class_run, 1); | |
1201 | ||
1202 | add_com ("run", class_run, run_command, | |
1203 | "Start debugged program. You may specify arguments to give it.\n\ | |
1204 | Args may include \"*\", or \"[...]\"; they are expanded using \"sh\".\n\ | |
1205 | Input and output redirection with \">\", \"<\", or \">>\" are also allowed.\n\n\ | |
1206 | With no arguments, uses arguments last specified (with \"run\" or \"set args\".\n\ | |
1207 | To cancel previous arguments and run with no arguments,\n\ | |
1208 | use \"set args\" without arguments."); | |
1209 | add_com_alias ("r", "run", class_run, 1); | |
1210 | ||
ee0613d1 JG |
1211 | add_info ("registers", nofp_registers_info, |
1212 | "List of integer registers and their contents, for selected stack frame.\n\ | |
1213 | Register name as argument means describe only that register."); | |
1214 | ||
1215 | add_info ("all-registers", all_registers_info, | |
1216 | "List of all registers and their contents, for selected stack frame.\n\ | |
bd5635a1 RP |
1217 | Register name as argument means describe only that register."); |
1218 | ||
1219 | add_info ("program", program_info, | |
1220 | "Execution status of the program."); | |
1221 | ||
1222 | add_info ("float", float_info, | |
1223 | "Print the status of the floating point unit\n"); | |
1224 | ||
1225 | inferior_args = savestring ("", 1); /* Initially no args */ | |
1226 | inferior_environ = make_environ (); | |
1227 | init_environ (inferior_environ); | |
1228 | } |