Commit | Line | Data |
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3b55fbe3 | 1 | /* Memory-access and commands for "inferior" process, for GDB. |
ee0613d1 | 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" | |
f6c4bf1a | 33 | #include "language.h" |
bd5635a1 | 34 | |
3b55fbe3 | 35 | static void continue_command PARAMS ((char *, int)); |
1304f099 | 36 | |
3b55fbe3 | 37 | static void until_next_command PARAMS ((int)); |
1304f099 | 38 | |
3b55fbe3 | 39 | static void until_command PARAMS ((char *, int)); |
1304f099 | 40 | |
3b55fbe3 | 41 | static void path_info PARAMS ((char *, int)); |
1304f099 | 42 | |
3b55fbe3 | 43 | static void path_command PARAMS ((char *, int)); |
1304f099 | 44 | |
3b55fbe3 | 45 | static void unset_command PARAMS ((char *, int)); |
1304f099 | 46 | |
3b55fbe3 | 47 | static void float_info PARAMS ((char *, int)); |
1304f099 | 48 | |
3b55fbe3 | 49 | static void detach_command PARAMS ((char *, int)); |
1304f099 | 50 | |
3b55fbe3 | 51 | static void nofp_registers_info PARAMS ((char *, int)); |
1304f099 | 52 | |
3b55fbe3 | 53 | static void all_registers_info PARAMS ((char *, int)); |
1304f099 | 54 | |
3b55fbe3 | 55 | static void registers_info PARAMS ((char *, int)); |
1304f099 | 56 | |
3b55fbe3 | 57 | static void do_registers_info PARAMS ((int, int)); |
1304f099 | 58 | |
3b55fbe3 | 59 | static void unset_environment_command PARAMS ((char *, int)); |
1304f099 | 60 | |
3b55fbe3 | 61 | static void set_environment_command PARAMS ((char *, int)); |
1304f099 | 62 | |
3b55fbe3 | 63 | static void environment_info PARAMS ((char *, int)); |
1304f099 | 64 | |
3b55fbe3 | 65 | static void program_info PARAMS ((char *, int)); |
1304f099 | 66 | |
3b55fbe3 | 67 | static void finish_command PARAMS ((char *, int)); |
1304f099 | 68 | |
3b55fbe3 | 69 | static void signal_command PARAMS ((char *, int)); |
1304f099 | 70 | |
3b55fbe3 | 71 | static void jump_command PARAMS ((char *, int)); |
1304f099 | 72 | |
3b55fbe3 | 73 | static void step_1 PARAMS ((int, int, char *)); |
1304f099 | 74 | |
3b55fbe3 | 75 | static void nexti_command PARAMS ((char *, int)); |
bd5635a1 | 76 | |
3b55fbe3 | 77 | static void stepi_command PARAMS ((char *, int)); |
1304f099 | 78 | |
3b55fbe3 | 79 | static void next_command PARAMS ((char *, int)); |
1304f099 | 80 | |
3b55fbe3 | 81 | static void step_command PARAMS ((char *, int)); |
1304f099 | 82 | |
3b55fbe3 | 83 | static void run_command PARAMS ((char *, int)); |
bd5635a1 RP |
84 | |
85 | #define ERROR_NO_INFERIOR \ | |
86 | if (!target_has_execution) error ("The program is not being run."); | |
87 | ||
88 | /* String containing arguments to give to the program, separated by spaces. | |
89 | Empty string (pointer to '\0') means no args. */ | |
90 | ||
91 | static char *inferior_args; | |
92 | ||
93 | /* File name for default use for standard in/out in the inferior. */ | |
94 | ||
95 | char *inferior_io_terminal; | |
96 | ||
97 | /* Pid of our debugged inferior, or 0 if no inferior now. | |
98 | Since various parts of infrun.c test this to see whether there is a program | |
99 | being debugged it should be nonzero (currently 3 is used) for remote | |
100 | debugging. */ | |
101 | ||
102 | int inferior_pid; | |
103 | ||
104 | /* Last signal that the inferior received (why it stopped). */ | |
105 | ||
67ac9759 | 106 | enum target_signal stop_signal; |
bd5635a1 RP |
107 | |
108 | /* Address at which inferior stopped. */ | |
109 | ||
110 | CORE_ADDR stop_pc; | |
111 | ||
bd5635a1 RP |
112 | /* Chain containing status of breakpoint(s) that we have stopped at. */ |
113 | ||
114 | bpstat stop_bpstat; | |
115 | ||
116 | /* Flag indicating that a command has proceeded the inferior past the | |
117 | current breakpoint. */ | |
118 | ||
119 | int breakpoint_proceeded; | |
120 | ||
121 | /* Nonzero if stopped due to a step command. */ | |
122 | ||
123 | int stop_step; | |
124 | ||
125 | /* Nonzero if stopped due to completion of a stack dummy routine. */ | |
126 | ||
127 | int stop_stack_dummy; | |
128 | ||
129 | /* Nonzero if stopped due to a random (unexpected) signal in inferior | |
130 | process. */ | |
131 | ||
132 | int stopped_by_random_signal; | |
133 | ||
134 | /* Range to single step within. | |
135 | If this is nonzero, respond to a single-step signal | |
136 | by continuing to step if the pc is in this range. */ | |
137 | ||
138 | CORE_ADDR step_range_start; /* Inclusive */ | |
139 | CORE_ADDR step_range_end; /* Exclusive */ | |
140 | ||
141 | /* Stack frame address as of when stepping command was issued. | |
142 | This is how we know when we step into a subroutine call, | |
143 | and how to set the frame for the breakpoint used to step out. */ | |
144 | ||
3b55fbe3 | 145 | CORE_ADDR step_frame_address; |
bd5635a1 | 146 | |
16726dd1 JK |
147 | /* Our notion of the current stack pointer. */ |
148 | ||
149 | CORE_ADDR step_sp; | |
150 | ||
bd5635a1 | 151 | /* 1 means step over all subroutine calls. |
b5a3d2aa | 152 | 0 means don't step over calls (used by stepi). |
bd5635a1 RP |
153 | -1 means step over calls to undebuggable functions. */ |
154 | ||
155 | int step_over_calls; | |
156 | ||
157 | /* If stepping, nonzero means step count is > 1 | |
158 | so don't print frame next time inferior stops | |
159 | if it stops due to stepping. */ | |
160 | ||
161 | int step_multi; | |
162 | ||
163 | /* Environment to use for running inferior, | |
164 | in format described in environ.h. */ | |
165 | ||
166 | struct environ *inferior_environ; | |
167 | ||
bd5635a1 | 168 | \f |
e1ce8aa5 | 169 | /* ARGSUSED */ |
bd5635a1 RP |
170 | void |
171 | tty_command (file, from_tty) | |
172 | char *file; | |
173 | int from_tty; | |
174 | { | |
175 | if (file == 0) | |
176 | error_no_arg ("terminal name for running target process"); | |
177 | ||
178 | inferior_io_terminal = savestring (file, strlen (file)); | |
179 | } | |
180 | ||
181 | static void | |
182 | run_command (args, from_tty) | |
183 | char *args; | |
184 | int from_tty; | |
185 | { | |
186 | char *exec_file; | |
187 | ||
188 | dont_repeat (); | |
189 | ||
190 | if (inferior_pid) | |
191 | { | |
192 | if ( | |
193 | !query ("The program being debugged has been started already.\n\ | |
194 | Start it from the beginning? ")) | |
195 | error ("Program not restarted."); | |
ee0613d1 | 196 | target_kill (); |
bd5635a1 RP |
197 | } |
198 | ||
9f577285 SS |
199 | clear_breakpoint_hit_counts (); |
200 | ||
bd5635a1 RP |
201 | exec_file = (char *) get_exec_file (0); |
202 | ||
1304f099 | 203 | /* The exec file is re-read every time we do a generic_mourn_inferior, so |
bd5635a1 RP |
204 | we just have to worry about the symbol file. */ |
205 | reread_symbols (); | |
206 | ||
f6c4bf1a JK |
207 | /* We keep symbols from add-symbol-file, on the grounds that the |
208 | user might want to add some symbols before running the program | |
209 | (right?). But sometimes (dynamic loading where the user manually | |
210 | introduces the new symbols with add-symbol-file), the code which | |
211 | the symbols describe does not persist between runs. Currently | |
212 | the user has to manually nuke all symbols between runs if they | |
213 | want them to go away (PR 2207). This is probably reasonable. */ | |
214 | ||
bd5635a1 RP |
215 | if (args) |
216 | { | |
217 | char *cmd; | |
ee0613d1 | 218 | cmd = concat ("set args ", args, NULL); |
bd5635a1 RP |
219 | make_cleanup (free, cmd); |
220 | execute_command (cmd, from_tty); | |
221 | } | |
222 | ||
223 | if (from_tty) | |
224 | { | |
b5a3d2aa SG |
225 | puts_filtered("Starting program: "); |
226 | if (exec_file) | |
227 | puts_filtered(exec_file); | |
228 | puts_filtered(" "); | |
229 | puts_filtered(inferior_args); | |
230 | puts_filtered("\n"); | |
199b2450 | 231 | gdb_flush (gdb_stdout); |
bd5635a1 RP |
232 | } |
233 | ||
234 | target_create_inferior (exec_file, inferior_args, | |
235 | environ_vector (inferior_environ)); | |
236 | } | |
237 | \f | |
1304f099 | 238 | static void |
bd5635a1 RP |
239 | continue_command (proc_count_exp, from_tty) |
240 | char *proc_count_exp; | |
241 | int from_tty; | |
242 | { | |
243 | ERROR_NO_INFERIOR; | |
244 | ||
245 | /* If have argument, set proceed count of breakpoint we stopped at. */ | |
246 | ||
247 | if (proc_count_exp != NULL) | |
248 | { | |
249 | bpstat bs = stop_bpstat; | |
250 | int num = bpstat_num (&bs); | |
251 | if (num == 0 && from_tty) | |
252 | { | |
253 | printf_filtered | |
254 | ("Not stopped at any breakpoint; argument ignored.\n"); | |
255 | } | |
256 | while (num != 0) | |
257 | { | |
258 | set_ignore_count (num, | |
259 | parse_and_eval_address (proc_count_exp) - 1, | |
260 | from_tty); | |
261 | /* set_ignore_count prints a message ending with a period. | |
262 | So print two spaces before "Continuing.". */ | |
263 | if (from_tty) | |
1304f099 | 264 | printf_filtered (" "); |
bd5635a1 RP |
265 | num = bpstat_num (&bs); |
266 | } | |
267 | } | |
268 | ||
269 | if (from_tty) | |
1304f099 | 270 | printf_filtered ("Continuing.\n"); |
bd5635a1 RP |
271 | |
272 | clear_proceed_status (); | |
273 | ||
c6e0f918 | 274 | proceed ((CORE_ADDR) -1, TARGET_SIGNAL_DEFAULT, 0); |
bd5635a1 RP |
275 | } |
276 | \f | |
277 | /* Step until outside of current statement. */ | |
bd5635a1 | 278 | |
e1ce8aa5 | 279 | /* ARGSUSED */ |
bd5635a1 RP |
280 | static void |
281 | step_command (count_string, from_tty) | |
1304f099 | 282 | char *count_string; |
bd5635a1 RP |
283 | int from_tty; |
284 | { | |
285 | step_1 (0, 0, count_string); | |
286 | } | |
287 | ||
288 | /* Likewise, but skip over subroutine calls as if single instructions. */ | |
289 | ||
e1ce8aa5 | 290 | /* ARGSUSED */ |
bd5635a1 RP |
291 | static void |
292 | next_command (count_string, from_tty) | |
1304f099 | 293 | char *count_string; |
bd5635a1 RP |
294 | int from_tty; |
295 | { | |
296 | step_1 (1, 0, count_string); | |
297 | } | |
298 | ||
299 | /* Likewise, but step only one instruction. */ | |
300 | ||
e1ce8aa5 | 301 | /* ARGSUSED */ |
bd5635a1 RP |
302 | static void |
303 | stepi_command (count_string, from_tty) | |
1304f099 | 304 | char *count_string; |
bd5635a1 RP |
305 | int from_tty; |
306 | { | |
307 | step_1 (0, 1, count_string); | |
308 | } | |
309 | ||
e1ce8aa5 | 310 | /* ARGSUSED */ |
bd5635a1 RP |
311 | static void |
312 | nexti_command (count_string, from_tty) | |
1304f099 | 313 | char *count_string; |
bd5635a1 RP |
314 | int from_tty; |
315 | { | |
316 | step_1 (1, 1, count_string); | |
317 | } | |
318 | ||
319 | static void | |
320 | step_1 (skip_subroutines, single_inst, count_string) | |
321 | int skip_subroutines; | |
322 | int single_inst; | |
323 | char *count_string; | |
324 | { | |
325 | register int count = 1; | |
3b55fbe3 | 326 | struct frame_info *frame; |
1304f099 | 327 | struct cleanup *cleanups = 0; |
bd5635a1 RP |
328 | |
329 | ERROR_NO_INFERIOR; | |
330 | count = count_string ? parse_and_eval_address (count_string) : 1; | |
331 | ||
1304f099 JG |
332 | if (!single_inst || skip_subroutines) /* leave si command alone */ |
333 | { | |
334 | enable_longjmp_breakpoint(); | |
335 | cleanups = make_cleanup(disable_longjmp_breakpoint, 0); | |
336 | } | |
337 | ||
bd5635a1 RP |
338 | for (; count > 0; count--) |
339 | { | |
340 | clear_proceed_status (); | |
341 | ||
3b55fbe3 JK |
342 | frame = get_current_frame (); |
343 | if (!frame) /* Avoid coredump here. Why tho? */ | |
bd5635a1 | 344 | error ("No current frame"); |
3b55fbe3 | 345 | step_frame_address = FRAME_FP (frame); |
16726dd1 | 346 | step_sp = read_sp (); |
bd5635a1 RP |
347 | |
348 | if (! single_inst) | |
349 | { | |
350 | find_pc_line_pc_range (stop_pc, &step_range_start, &step_range_end); | |
351 | if (step_range_end == 0) | |
352 | { | |
860a1754 JK |
353 | char *name; |
354 | if (find_pc_partial_function (stop_pc, &name, &step_range_start, | |
355 | &step_range_end) == 0) | |
356 | error ("Cannot find bounds of current function"); | |
bd5635a1 | 357 | |
bd5635a1 | 358 | target_terminal_ours (); |
860a1754 JK |
359 | printf_filtered ("\ |
360 | Single stepping until exit from function %s, \n\ | |
361 | which has no line number information.\n", name); | |
199b2450 | 362 | gdb_flush (gdb_stdout); |
bd5635a1 RP |
363 | } |
364 | } | |
365 | else | |
366 | { | |
fe675038 | 367 | /* Say we are stepping, but stop after one insn whatever it does. */ |
bd5635a1 RP |
368 | step_range_start = step_range_end = 1; |
369 | if (!skip_subroutines) | |
fe675038 JK |
370 | /* It is stepi. |
371 | Don't step over function calls, not even to functions lacking | |
372 | line numbers. */ | |
bd5635a1 RP |
373 | step_over_calls = 0; |
374 | } | |
375 | ||
376 | if (skip_subroutines) | |
377 | step_over_calls = 1; | |
378 | ||
379 | step_multi = (count > 1); | |
c6e0f918 | 380 | proceed ((CORE_ADDR) -1, TARGET_SIGNAL_DEFAULT, 1); |
bd5635a1 RP |
381 | if (! stop_step) |
382 | break; | |
5573d7d4 JK |
383 | |
384 | /* FIXME: On nexti, this may have already been done (when we hit the | |
385 | step resume break, I think). Probably this should be moved to | |
386 | wait_for_inferior (near the top). */ | |
bd5635a1 | 387 | #if defined (SHIFT_INST_REGS) |
07a5991a | 388 | SHIFT_INST_REGS(); |
bd5635a1 RP |
389 | #endif |
390 | } | |
1304f099 JG |
391 | |
392 | if (!single_inst || skip_subroutines) | |
393 | do_cleanups(cleanups); | |
bd5635a1 RP |
394 | } |
395 | \f | |
396 | /* Continue program at specified address. */ | |
397 | ||
398 | static void | |
399 | jump_command (arg, from_tty) | |
400 | char *arg; | |
401 | int from_tty; | |
402 | { | |
403 | register CORE_ADDR addr; | |
404 | struct symtabs_and_lines sals; | |
405 | struct symtab_and_line sal; | |
b4fde6fa FF |
406 | struct symbol *fn; |
407 | struct symbol *sfn; | |
bd5635a1 RP |
408 | |
409 | ERROR_NO_INFERIOR; | |
410 | ||
411 | if (!arg) | |
412 | error_no_arg ("starting address"); | |
413 | ||
414 | sals = decode_line_spec_1 (arg, 1); | |
415 | if (sals.nelts != 1) | |
416 | { | |
417 | error ("Unreasonable jump request"); | |
418 | } | |
419 | ||
420 | sal = sals.sals[0]; | |
1304f099 | 421 | free ((PTR)sals.sals); |
bd5635a1 RP |
422 | |
423 | if (sal.symtab == 0 && sal.pc == 0) | |
424 | error ("No source file has been specified."); | |
425 | ||
ee0613d1 | 426 | resolve_sal_pc (&sal); /* May error out */ |
bd5635a1 | 427 | |
b4fde6fa FF |
428 | /* See if we are trying to jump to another function. */ |
429 | fn = get_frame_function (get_current_frame ()); | |
430 | sfn = find_pc_function (sal.pc); | |
431 | if (fn != NULL && sfn != fn) | |
432 | { | |
2e4964ad FF |
433 | if (!query ("Line %d is not in `%s'. Jump anyway? ", sal.line, |
434 | SYMBOL_SOURCE_NAME (fn))) | |
b4fde6fa FF |
435 | { |
436 | error ("Not confirmed."); | |
437 | /* NOTREACHED */ | |
438 | } | |
b4fde6fa | 439 | } |
bd5635a1 | 440 | |
5573d7d4 | 441 | addr = sal.pc; |
bd5635a1 RP |
442 | |
443 | if (from_tty) | |
9f577285 SS |
444 | { |
445 | printf_filtered ("Continuing at "); | |
446 | print_address_numeric (addr, 1, gdb_stdout); | |
447 | printf_filtered (".\n"); | |
448 | } | |
bd5635a1 RP |
449 | |
450 | clear_proceed_status (); | |
67ac9759 | 451 | proceed (addr, TARGET_SIGNAL_0, 0); |
bd5635a1 RP |
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 | { | |
67ac9759 | 461 | enum target_signal oursig; |
bd5635a1 RP |
462 | |
463 | dont_repeat (); /* Too dangerous. */ | |
464 | ERROR_NO_INFERIOR; | |
465 | ||
466 | if (!signum_exp) | |
467 | error_no_arg ("signal number"); | |
468 | ||
de6a2704 JK |
469 | /* It would be even slicker to make signal names be valid expressions, |
470 | (the type could be "enum $signal" or some such), then the user could | |
471 | assign them to convenience variables. */ | |
67ac9759 | 472 | oursig = target_signal_from_name (signum_exp); |
de6a2704 | 473 | |
67ac9759 JK |
474 | if (oursig == TARGET_SIGNAL_UNKNOWN) |
475 | { | |
3b55fbe3 JK |
476 | /* No, try numeric. */ |
477 | oursig = | |
478 | target_signal_from_command (parse_and_eval_address (signum_exp)); | |
67ac9759 | 479 | } |
bd5635a1 RP |
480 | |
481 | if (from_tty) | |
de6a2704 | 482 | { |
67ac9759 JK |
483 | if (oursig == TARGET_SIGNAL_0) |
484 | printf_filtered ("Continuing with no signal.\n"); | |
de6a2704 | 485 | else |
67ac9759 JK |
486 | printf_filtered ("Continuing with signal %s.\n", |
487 | target_signal_to_name (oursig)); | |
de6a2704 | 488 | } |
bd5635a1 RP |
489 | |
490 | clear_proceed_status (); | |
67ac9759 | 491 | proceed (stop_pc, oursig, 0); |
bd5635a1 RP |
492 | } |
493 | ||
84d59861 JK |
494 | /* Call breakpoint_auto_delete on the current contents of the bpstat |
495 | pointed to by arg (which is really a bpstat *). */ | |
496 | void | |
497 | breakpoint_auto_delete_contents (arg) | |
498 | PTR arg; | |
499 | { | |
500 | breakpoint_auto_delete (*(bpstat *)arg); | |
501 | } | |
502 | ||
bd5635a1 RP |
503 | /* Execute a "stack dummy", a piece of code stored in the stack |
504 | by the debugger to be executed in the inferior. | |
505 | ||
506 | To call: first, do PUSH_DUMMY_FRAME. | |
507 | Then push the contents of the dummy. It should end with a breakpoint insn. | |
508 | Then call here, passing address at which to start the dummy. | |
509 | ||
510 | The contents of all registers are saved before the dummy frame is popped | |
511 | and copied into the buffer BUFFER. | |
512 | ||
513 | The dummy's frame is automatically popped whenever that break is hit. | |
514 | If that is the first time the program stops, run_stack_dummy | |
860a1754 JK |
515 | returns to its caller with that frame already gone and returns 0. |
516 | Otherwise, run_stack-dummy returns 1 (the frame will eventually be popped | |
517 | when we do hit that breakpoint). */ | |
bd5635a1 | 518 | |
ee0613d1 | 519 | /* DEBUG HOOK: 4 => return instead of letting the stack dummy run. */ |
bd5635a1 RP |
520 | |
521 | static int stack_dummy_testing = 0; | |
522 | ||
860a1754 JK |
523 | int |
524 | run_stack_dummy (addr, buffer) | |
bd5635a1 RP |
525 | CORE_ADDR addr; |
526 | char buffer[REGISTER_BYTES]; | |
527 | { | |
84d59861 JK |
528 | struct cleanup *old_cleanups = make_cleanup (null_cleanup, 0); |
529 | ||
bd5635a1 RP |
530 | /* Now proceed, having reached the desired place. */ |
531 | clear_proceed_status (); | |
532 | if (stack_dummy_testing & 4) | |
533 | { | |
534 | POP_FRAME; | |
37c99ddb | 535 | return(0); |
bd5635a1 | 536 | } |
84d59861 JK |
537 | #ifdef CALL_DUMMY_BREAKPOINT_OFFSET |
538 | { | |
539 | struct breakpoint *bpt; | |
540 | struct symtab_and_line sal; | |
541 | ||
f6c4bf1a | 542 | #if CALL_DUMMY_LOCATION != AT_ENTRY_POINT |
84d59861 | 543 | sal.pc = addr - CALL_DUMMY_START_OFFSET + CALL_DUMMY_BREAKPOINT_OFFSET; |
f6c4bf1a | 544 | #else |
9f577285 | 545 | sal.pc = CALL_DUMMY_ADDRESS (); |
f6c4bf1a | 546 | #endif |
84d59861 JK |
547 | sal.symtab = NULL; |
548 | sal.line = 0; | |
549 | ||
f6c4bf1a JK |
550 | /* Set up a FRAME for the dummy frame so we can pass it to |
551 | set_momentary_breakpoint. We need to give the breakpoint a | |
552 | frame in case there is only one copy of the dummy (e.g. | |
553 | CALL_DUMMY_LOCATION == AFTER_TEXT_END). */ | |
554 | flush_cached_frames (); | |
3b55fbe3 | 555 | set_current_frame (create_new_frame (read_fp (), sal.pc)); |
f6c4bf1a | 556 | |
84d59861 JK |
557 | /* If defined, CALL_DUMMY_BREAKPOINT_OFFSET is where we need to put |
558 | a breakpoint instruction. If not, the call dummy already has the | |
559 | breakpoint instruction in it. | |
560 | ||
561 | addr is the address of the call dummy plus the CALL_DUMMY_START_OFFSET, | |
562 | so we need to subtract the CALL_DUMMY_START_OFFSET. */ | |
563 | bpt = set_momentary_breakpoint (sal, | |
f6c4bf1a | 564 | get_current_frame (), |
84d59861 JK |
565 | bp_call_dummy); |
566 | bpt->disposition = delete; | |
567 | ||
568 | /* If all error()s out of proceed ended up calling normal_stop (and | |
569 | perhaps they should; it already does in the special case of error | |
570 | out of resume()), then we wouldn't need this. */ | |
571 | make_cleanup (breakpoint_auto_delete_contents, &stop_bpstat); | |
572 | } | |
573 | #endif /* CALL_DUMMY_BREAKPOINT_OFFSET. */ | |
574 | ||
bd5635a1 | 575 | proceed_to_finish = 1; /* We want stop_registers, please... */ |
67ac9759 | 576 | proceed (addr, TARGET_SIGNAL_0, 0); |
bd5635a1 | 577 | |
84d59861 JK |
578 | discard_cleanups (old_cleanups); |
579 | ||
bd5635a1 | 580 | if (!stop_stack_dummy) |
860a1754 | 581 | return 1; |
bd5635a1 RP |
582 | |
583 | /* On return, the stack dummy has been popped already. */ | |
584 | ||
4ed3a9ea | 585 | memcpy (buffer, stop_registers, sizeof stop_registers); |
860a1754 | 586 | return 0; |
bd5635a1 RP |
587 | } |
588 | \f | |
589 | /* Proceed until we reach a different source line with pc greater than | |
590 | our current one or exit the function. We skip calls in both cases. | |
591 | ||
592 | Note that eventually this command should probably be changed so | |
593 | that only source lines are printed out when we hit the breakpoint | |
c6e0f918 JK |
594 | we set. This may involve changes to wait_for_inferior and the |
595 | proceed status code. */ | |
bd5635a1 | 596 | |
e1ce8aa5 | 597 | /* ARGSUSED */ |
1304f099 | 598 | static void |
bd5635a1 RP |
599 | until_next_command (from_tty) |
600 | int from_tty; | |
601 | { | |
3b55fbe3 | 602 | struct frame_info *frame; |
bd5635a1 RP |
603 | CORE_ADDR pc; |
604 | struct symbol *func; | |
605 | struct symtab_and_line sal; | |
606 | ||
607 | clear_proceed_status (); | |
608 | ||
609 | frame = get_current_frame (); | |
610 | ||
611 | /* Step until either exited from this function or greater | |
612 | than the current line (if in symbolic section) or pc (if | |
613 | not). */ | |
614 | ||
615 | pc = read_pc (); | |
616 | func = find_pc_function (pc); | |
617 | ||
618 | if (!func) | |
619 | { | |
1304f099 | 620 | struct minimal_symbol *msymbol = lookup_minimal_symbol_by_pc (pc); |
bd5635a1 | 621 | |
1304f099 | 622 | if (msymbol == NULL) |
bd5635a1 RP |
623 | error ("Execution is not within a known function."); |
624 | ||
2e4964ad | 625 | step_range_start = SYMBOL_VALUE_ADDRESS (msymbol); |
bd5635a1 RP |
626 | step_range_end = pc; |
627 | } | |
628 | else | |
629 | { | |
630 | sal = find_pc_line (pc, 0); | |
631 | ||
632 | step_range_start = BLOCK_START (SYMBOL_BLOCK_VALUE (func)); | |
633 | step_range_end = sal.end; | |
634 | } | |
635 | ||
636 | step_over_calls = 1; | |
637 | step_frame_address = FRAME_FP (frame); | |
16726dd1 JK |
638 | step_sp = read_sp (); |
639 | ||
bd5635a1 RP |
640 | step_multi = 0; /* Only one call to proceed */ |
641 | ||
c6e0f918 | 642 | proceed ((CORE_ADDR) -1, TARGET_SIGNAL_DEFAULT, 1); |
bd5635a1 RP |
643 | } |
644 | ||
1304f099 | 645 | static void |
bd5635a1 RP |
646 | until_command (arg, from_tty) |
647 | char *arg; | |
648 | int from_tty; | |
649 | { | |
650 | if (!target_has_execution) | |
651 | error ("The program is not running."); | |
652 | if (arg) | |
653 | until_break_command (arg, from_tty); | |
654 | else | |
655 | until_next_command (from_tty); | |
656 | } | |
657 | \f | |
658 | /* "finish": Set a temporary breakpoint at the place | |
659 | the selected frame will return to, then continue. */ | |
660 | ||
661 | static void | |
662 | finish_command (arg, from_tty) | |
663 | char *arg; | |
664 | int from_tty; | |
665 | { | |
666 | struct symtab_and_line sal; | |
3b55fbe3 | 667 | register struct frame_info *frame; |
bd5635a1 | 668 | register struct symbol *function; |
1304f099 JG |
669 | struct breakpoint *breakpoint; |
670 | struct cleanup *old_chain; | |
bd5635a1 RP |
671 | |
672 | if (arg) | |
673 | error ("The \"finish\" command does not take any arguments."); | |
674 | if (!target_has_execution) | |
675 | error ("The program is not running."); | |
777bef06 JK |
676 | if (selected_frame == NULL) |
677 | error ("No selected frame."); | |
bd5635a1 RP |
678 | |
679 | frame = get_prev_frame (selected_frame); | |
680 | if (frame == 0) | |
681 | error ("\"finish\" not meaningful in the outermost frame."); | |
682 | ||
683 | clear_proceed_status (); | |
684 | ||
3b55fbe3 JK |
685 | sal = find_pc_line (frame->pc, 0); |
686 | sal.pc = frame->pc; | |
1304f099 JG |
687 | |
688 | breakpoint = set_momentary_breakpoint (sal, frame, bp_finish); | |
689 | ||
690 | old_chain = make_cleanup(delete_breakpoint, breakpoint); | |
bd5635a1 RP |
691 | |
692 | /* Find the function we will return from. */ | |
693 | ||
3b55fbe3 | 694 | function = find_pc_function (selected_frame->pc); |
bd5635a1 | 695 | |
ee0613d1 JG |
696 | /* Print info on the selected frame, including level number |
697 | but not source. */ | |
bd5635a1 RP |
698 | if (from_tty) |
699 | { | |
ee0613d1 JG |
700 | printf_filtered ("Run till exit from "); |
701 | print_stack_frame (selected_frame, selected_frame_level, 0); | |
bd5635a1 RP |
702 | } |
703 | ||
704 | proceed_to_finish = 1; /* We want stop_registers, please... */ | |
c6e0f918 | 705 | proceed ((CORE_ADDR) -1, TARGET_SIGNAL_DEFAULT, 0); |
bd5635a1 | 706 | |
1304f099 JG |
707 | /* Did we stop at our breakpoint? */ |
708 | if (bpstat_find_breakpoint(stop_bpstat, breakpoint) != NULL | |
709 | && function != 0) | |
bd5635a1 RP |
710 | { |
711 | struct type *value_type; | |
9f577285 | 712 | register value_ptr val; |
bd5635a1 RP |
713 | CORE_ADDR funcaddr; |
714 | ||
715 | value_type = TYPE_TARGET_TYPE (SYMBOL_TYPE (function)); | |
716 | if (!value_type) | |
717 | fatal ("internal: finish_command: function has no target type"); | |
718 | ||
719 | if (TYPE_CODE (value_type) == TYPE_CODE_VOID) | |
720 | return; | |
721 | ||
722 | funcaddr = BLOCK_START (SYMBOL_BLOCK_VALUE (function)); | |
723 | ||
724 | val = value_being_returned (value_type, stop_registers, | |
860a1754 | 725 | using_struct_return (value_of_variable (function, NULL), |
bd5635a1 RP |
726 | funcaddr, |
727 | value_type, | |
728 | BLOCK_GCC_COMPILED (SYMBOL_BLOCK_VALUE (function)))); | |
729 | ||
ee0613d1 | 730 | printf_filtered ("Value returned is $%d = ", record_latest_value (val)); |
199b2450 | 731 | value_print (val, gdb_stdout, 0, Val_no_prettyprint); |
ee0613d1 | 732 | printf_filtered ("\n"); |
bd5635a1 | 733 | } |
1304f099 | 734 | do_cleanups(old_chain); |
bd5635a1 RP |
735 | } |
736 | \f | |
e1ce8aa5 | 737 | /* ARGSUSED */ |
bd5635a1 RP |
738 | static void |
739 | program_info (args, from_tty) | |
740 | char *args; | |
741 | int from_tty; | |
742 | { | |
743 | bpstat bs = stop_bpstat; | |
744 | int num = bpstat_num (&bs); | |
745 | ||
746 | if (!target_has_execution) | |
747 | { | |
1304f099 | 748 | printf_filtered ("The program being debugged is not being run.\n"); |
bd5635a1 RP |
749 | return; |
750 | } | |
751 | ||
752 | target_files_info (); | |
5573d7d4 JK |
753 | printf_filtered ("Program stopped at %s.\n", |
754 | local_hex_string((unsigned long) stop_pc)); | |
bd5635a1 | 755 | if (stop_step) |
1304f099 | 756 | printf_filtered ("It stopped after being stepped.\n"); |
bd5635a1 RP |
757 | else if (num != 0) |
758 | { | |
759 | /* There may be several breakpoints in the same place, so this | |
760 | isn't as strange as it seems. */ | |
761 | while (num != 0) | |
762 | { | |
763 | if (num < 0) | |
1304f099 | 764 | printf_filtered ("It stopped at a breakpoint that has since been deleted.\n"); |
bd5635a1 | 765 | else |
1304f099 | 766 | printf_filtered ("It stopped at breakpoint %d.\n", num); |
bd5635a1 RP |
767 | num = bpstat_num (&bs); |
768 | } | |
769 | } | |
67ac9759 | 770 | else if (stop_signal != TARGET_SIGNAL_0) |
de6a2704 | 771 | { |
67ac9759 JK |
772 | printf_filtered ("It stopped with signal %s, %s.\n", |
773 | target_signal_to_name (stop_signal), | |
774 | target_signal_to_string (stop_signal)); | |
775 | } | |
bd5635a1 RP |
776 | |
777 | if (!from_tty) | |
1304f099 | 778 | printf_filtered ("Type \"info stack\" or \"info registers\" for more information.\n"); |
bd5635a1 RP |
779 | } |
780 | \f | |
781 | static void | |
1304f099 | 782 | environment_info (var, from_tty) |
bd5635a1 | 783 | char *var; |
1304f099 | 784 | int from_tty; |
bd5635a1 RP |
785 | { |
786 | if (var) | |
787 | { | |
788 | register char *val = get_in_environ (inferior_environ, var); | |
789 | if (val) | |
631f7a9f JG |
790 | { |
791 | puts_filtered (var); | |
792 | puts_filtered (" = "); | |
793 | puts_filtered (val); | |
794 | puts_filtered ("\n"); | |
795 | } | |
bd5635a1 | 796 | else |
631f7a9f JG |
797 | { |
798 | puts_filtered ("Environment variable \""); | |
799 | puts_filtered (var); | |
800 | puts_filtered ("\" not defined.\n"); | |
801 | } | |
bd5635a1 RP |
802 | } |
803 | else | |
804 | { | |
805 | register char **vector = environ_vector (inferior_environ); | |
806 | while (*vector) | |
631f7a9f JG |
807 | { |
808 | puts_filtered (*vector++); | |
809 | puts_filtered ("\n"); | |
810 | } | |
bd5635a1 RP |
811 | } |
812 | } | |
813 | ||
814 | static void | |
1304f099 | 815 | set_environment_command (arg, from_tty) |
bd5635a1 | 816 | char *arg; |
1304f099 | 817 | int from_tty; |
bd5635a1 RP |
818 | { |
819 | register char *p, *val, *var; | |
820 | int nullset = 0; | |
821 | ||
822 | if (arg == 0) | |
823 | error_no_arg ("environment variable and value"); | |
824 | ||
825 | /* Find seperation between variable name and value */ | |
826 | p = (char *) strchr (arg, '='); | |
827 | val = (char *) strchr (arg, ' '); | |
828 | ||
829 | if (p != 0 && val != 0) | |
830 | { | |
831 | /* We have both a space and an equals. If the space is before the | |
631f7a9f JG |
832 | equals, walk forward over the spaces til we see a nonspace |
833 | (possibly the equals). */ | |
bd5635a1 RP |
834 | if (p > val) |
835 | while (*val == ' ') | |
836 | val++; | |
837 | ||
631f7a9f JG |
838 | /* Now if the = is after the char following the spaces, |
839 | take the char following the spaces. */ | |
840 | if (p > val) | |
b5a3d2aa | 841 | p = val - 1; |
bd5635a1 RP |
842 | } |
843 | else if (val != 0 && p == 0) | |
844 | p = val; | |
845 | ||
846 | if (p == arg) | |
847 | error_no_arg ("environment variable to set"); | |
848 | ||
849 | if (p == 0 || p[1] == 0) | |
850 | { | |
851 | nullset = 1; | |
852 | if (p == 0) | |
853 | p = arg + strlen (arg); /* So that savestring below will work */ | |
854 | } | |
855 | else | |
856 | { | |
857 | /* Not setting variable value to null */ | |
858 | val = p + 1; | |
859 | while (*val == ' ' || *val == '\t') | |
860 | val++; | |
861 | } | |
862 | ||
863 | while (p != arg && (p[-1] == ' ' || p[-1] == '\t')) p--; | |
864 | ||
865 | var = savestring (arg, p - arg); | |
866 | if (nullset) | |
867 | { | |
1304f099 | 868 | printf_filtered ("Setting environment variable \"%s\" to null value.\n", var); |
bd5635a1 RP |
869 | set_in_environ (inferior_environ, var, ""); |
870 | } | |
871 | else | |
872 | set_in_environ (inferior_environ, var, val); | |
873 | free (var); | |
874 | } | |
875 | ||
876 | static void | |
877 | unset_environment_command (var, from_tty) | |
878 | char *var; | |
879 | int from_tty; | |
880 | { | |
881 | if (var == 0) | |
882 | { | |
883 | /* If there is no argument, delete all environment variables. | |
884 | Ask for confirmation if reading from the terminal. */ | |
885 | if (!from_tty || query ("Delete all environment variables? ")) | |
886 | { | |
887 | free_environ (inferior_environ); | |
888 | inferior_environ = make_environ (); | |
889 | } | |
890 | } | |
891 | else | |
892 | unset_in_environ (inferior_environ, var); | |
893 | } | |
894 | ||
895 | /* Handle the execution path (PATH variable) */ | |
896 | ||
a8a69e63 | 897 | static const char path_var_name[] = "PATH"; |
bd5635a1 | 898 | |
e1ce8aa5 | 899 | /* ARGSUSED */ |
1304f099 | 900 | static void |
bd5635a1 RP |
901 | path_info (args, from_tty) |
902 | char *args; | |
903 | int from_tty; | |
904 | { | |
b5a3d2aa SG |
905 | puts_filtered ("Executable and object file path: "); |
906 | puts_filtered (get_in_environ (inferior_environ, path_var_name)); | |
907 | puts_filtered ("\n"); | |
bd5635a1 RP |
908 | } |
909 | ||
910 | /* Add zero or more directories to the front of the execution path. */ | |
911 | ||
1304f099 | 912 | static void |
bd5635a1 RP |
913 | path_command (dirname, from_tty) |
914 | char *dirname; | |
915 | int from_tty; | |
916 | { | |
917 | char *exec_path; | |
918 | ||
919 | dont_repeat (); | |
920 | exec_path = strsave (get_in_environ (inferior_environ, path_var_name)); | |
e1ce8aa5 | 921 | mod_path (dirname, &exec_path); |
bd5635a1 RP |
922 | set_in_environ (inferior_environ, path_var_name, exec_path); |
923 | free (exec_path); | |
924 | if (from_tty) | |
e1ce8aa5 | 925 | path_info ((char *)NULL, from_tty); |
bd5635a1 RP |
926 | } |
927 | \f | |
3b55fbe3 JK |
928 | /* The array of register names. */ |
929 | ||
930 | char *reg_names[] = REGISTER_NAMES; | |
bd5635a1 RP |
931 | |
932 | /* Print out the machine register regnum. If regnum is -1, | |
ee0613d1 JG |
933 | print all registers (fpregs == 1) or all non-float registers |
934 | (fpregs == 0). | |
935 | ||
bd5635a1 RP |
936 | For most machines, having all_registers_info() print the |
937 | register(s) one per line is good enough. If a different format | |
ee0613d1 | 938 | is required, (eg, for MIPS or Pyramid 90x, which both have |
bd5635a1 | 939 | lots of regs), or there is an existing convention for showing |
ee0613d1 | 940 | all the registers, define the macro DO_REGISTERS_INFO(regnum, fp) |
bd5635a1 | 941 | to provide that format. */ |
ee0613d1 | 942 | |
bd5635a1 | 943 | #if !defined (DO_REGISTERS_INFO) |
16726dd1 | 944 | |
ee0613d1 | 945 | #define DO_REGISTERS_INFO(regnum, fp) do_registers_info(regnum, fp) |
16726dd1 | 946 | |
ee0613d1 JG |
947 | static void |
948 | do_registers_info (regnum, fpregs) | |
bd5635a1 | 949 | int regnum; |
ee0613d1 | 950 | int fpregs; |
bd5635a1 RP |
951 | { |
952 | register int i; | |
16726dd1 | 953 | int numregs = ARCH_NUM_REGS; |
bd5635a1 | 954 | |
16726dd1 | 955 | for (i = 0; i < numregs; i++) |
bd5635a1 RP |
956 | { |
957 | char raw_buffer[MAX_REGISTER_RAW_SIZE]; | |
958 | char virtual_buffer[MAX_REGISTER_VIRTUAL_SIZE]; | |
959 | ||
ee0613d1 JG |
960 | /* Decide between printing all regs, nonfloat regs, or specific reg. */ |
961 | if (regnum == -1) { | |
962 | if (TYPE_CODE (REGISTER_VIRTUAL_TYPE (i)) == TYPE_CODE_FLT && !fpregs) | |
963 | continue; | |
964 | } else { | |
965 | if (i != regnum) | |
966 | continue; | |
967 | } | |
bd5635a1 | 968 | |
199b2450 TL |
969 | fputs_filtered (reg_names[i], gdb_stdout); |
970 | print_spaces_filtered (15 - strlen (reg_names[i]), gdb_stdout); | |
bd5635a1 | 971 | |
67ac9759 | 972 | /* Get the data in raw format. */ |
bd5635a1 RP |
973 | if (read_relative_register_raw_bytes (i, raw_buffer)) |
974 | { | |
975 | printf_filtered ("Invalid register contents\n"); | |
976 | continue; | |
977 | } | |
67ac9759 JK |
978 | |
979 | /* Convert raw data to virtual format if necessary. */ | |
980 | #ifdef REGISTER_CONVERTIBLE | |
981 | if (REGISTER_CONVERTIBLE (i)) | |
982 | { | |
983 | REGISTER_CONVERT_TO_VIRTUAL (i, REGISTER_VIRTUAL_TYPE (i), | |
984 | raw_buffer, virtual_buffer); | |
985 | } | |
986 | else | |
987 | #endif | |
988 | memcpy (virtual_buffer, raw_buffer, | |
989 | REGISTER_VIRTUAL_SIZE (i)); | |
bd5635a1 RP |
990 | |
991 | /* If virtual format is floating, print it that way, and in raw hex. */ | |
16726dd1 | 992 | if (TYPE_CODE (REGISTER_VIRTUAL_TYPE (i)) == TYPE_CODE_FLT) |
bd5635a1 RP |
993 | { |
994 | register int j; | |
995 | ||
16726dd1 JK |
996 | #ifdef INVALID_FLOAT |
997 | if (INVALID_FLOAT (virtual_buffer, REGISTER_VIRTUAL_SIZE (i))) | |
998 | printf_filtered ("<invalid float>"); | |
999 | else | |
1000 | #endif | |
1001 | val_print (REGISTER_VIRTUAL_TYPE (i), virtual_buffer, 0, | |
1002 | gdb_stdout, 0, 1, 0, Val_pretty_default); | |
bd5635a1 RP |
1003 | |
1004 | printf_filtered ("\t(raw 0x"); | |
1005 | for (j = 0; j < REGISTER_RAW_SIZE (i); j++) | |
1006 | printf_filtered ("%02x", (unsigned char)raw_buffer[j]); | |
1007 | printf_filtered (")"); | |
1008 | } | |
1009 | ||
1010 | /* FIXME! val_print probably can handle all of these cases now... */ | |
1011 | ||
1012 | /* Else if virtual format is too long for printf, | |
1013 | print in hex a byte at a time. */ | |
1014 | else if (REGISTER_VIRTUAL_SIZE (i) > sizeof (long)) | |
1015 | { | |
1016 | register int j; | |
1017 | printf_filtered ("0x"); | |
1018 | for (j = 0; j < REGISTER_VIRTUAL_SIZE (i); j++) | |
1019 | printf_filtered ("%02x", (unsigned char)virtual_buffer[j]); | |
1020 | } | |
1021 | /* Else print as integer in hex and in decimal. */ | |
1022 | else | |
1023 | { | |
1024 | val_print (REGISTER_VIRTUAL_TYPE (i), raw_buffer, 0, | |
199b2450 | 1025 | gdb_stdout, 'x', 1, 0, Val_pretty_default); |
bd5635a1 RP |
1026 | printf_filtered ("\t"); |
1027 | val_print (REGISTER_VIRTUAL_TYPE (i), raw_buffer, 0, | |
199b2450 | 1028 | gdb_stdout, 0, 1, 0, Val_pretty_default); |
bd5635a1 RP |
1029 | } |
1030 | ||
1031 | /* The SPARC wants to print even-numbered float regs as doubles | |
1032 | in addition to printing them as floats. */ | |
1033 | #ifdef PRINT_REGISTER_HOOK | |
1034 | PRINT_REGISTER_HOOK (i); | |
1035 | #endif | |
1036 | ||
1037 | printf_filtered ("\n"); | |
1038 | } | |
1039 | } | |
1040 | #endif /* no DO_REGISTERS_INFO. */ | |
1041 | ||
1042 | static void | |
ee0613d1 | 1043 | registers_info (addr_exp, fpregs) |
bd5635a1 | 1044 | char *addr_exp; |
ee0613d1 | 1045 | int fpregs; |
bd5635a1 | 1046 | { |
16726dd1 | 1047 | int regnum, numregs; |
b5a3d2aa | 1048 | register char *end; |
bd5635a1 RP |
1049 | |
1050 | if (!target_has_registers) | |
1051 | error ("The program has no registers now."); | |
1052 | ||
b5a3d2aa | 1053 | if (!addr_exp) |
bd5635a1 | 1054 | { |
b5a3d2aa SG |
1055 | DO_REGISTERS_INFO(-1, fpregs); |
1056 | return; | |
bd5635a1 | 1057 | } |
bd5635a1 | 1058 | |
b5a3d2aa SG |
1059 | do |
1060 | { | |
1061 | if (addr_exp[0] == '$') | |
1062 | addr_exp++; | |
1063 | end = addr_exp; | |
1064 | while (*end != '\0' && *end != ' ' && *end != '\t') | |
1065 | ++end; | |
16726dd1 JK |
1066 | numregs = ARCH_NUM_REGS; |
1067 | for (regnum = 0; regnum < numregs; regnum++) | |
b5a3d2aa SG |
1068 | if (!strncmp (addr_exp, reg_names[regnum], end - addr_exp) |
1069 | && strlen (reg_names[regnum]) == end - addr_exp) | |
1070 | goto found; | |
1071 | if (*addr_exp >= '0' && *addr_exp <= '9') | |
1072 | regnum = atoi (addr_exp); /* Take a number */ | |
16726dd1 | 1073 | if (regnum >= numregs) /* Bad name, or bad number */ |
b5a3d2aa SG |
1074 | error ("%.*s: invalid register", end - addr_exp, addr_exp); |
1075 | ||
1076 | found: | |
1077 | DO_REGISTERS_INFO(regnum, fpregs); | |
1078 | ||
1079 | addr_exp = end; | |
1080 | while (*addr_exp == ' ' || *addr_exp == '\t') | |
1081 | ++addr_exp; | |
1082 | } while (*addr_exp != '\0'); | |
ee0613d1 JG |
1083 | } |
1084 | ||
1085 | static void | |
1304f099 | 1086 | all_registers_info (addr_exp, from_tty) |
ee0613d1 | 1087 | char *addr_exp; |
1304f099 | 1088 | int from_tty; |
ee0613d1 JG |
1089 | { |
1090 | registers_info (addr_exp, 1); | |
1091 | } | |
1092 | ||
1093 | static void | |
1304f099 | 1094 | nofp_registers_info (addr_exp, from_tty) |
ee0613d1 | 1095 | char *addr_exp; |
1304f099 | 1096 | int from_tty; |
ee0613d1 JG |
1097 | { |
1098 | registers_info (addr_exp, 0); | |
bd5635a1 RP |
1099 | } |
1100 | \f | |
1101 | /* | |
1102 | * TODO: | |
1103 | * Should save/restore the tty state since it might be that the | |
1104 | * program to be debugged was started on this tty and it wants | |
1105 | * the tty in some state other than what we want. If it's running | |
1106 | * on another terminal or without a terminal, then saving and | |
1107 | * restoring the tty state is a harmless no-op. | |
1108 | * This only needs to be done if we are attaching to a process. | |
1109 | */ | |
1110 | ||
1111 | /* | |
b5a3d2aa SG |
1112 | attach_command -- |
1113 | takes a program started up outside of gdb and ``attaches'' to it. | |
1114 | This stops it cold in its tracks and allows us to start debugging it. | |
1115 | and wait for the trace-trap that results from attaching. */ | |
1116 | ||
bd5635a1 RP |
1117 | void |
1118 | attach_command (args, from_tty) | |
1119 | char *args; | |
1120 | int from_tty; | |
1121 | { | |
f266e564 | 1122 | dont_repeat (); /* Not for the faint of heart */ |
b5a3d2aa SG |
1123 | |
1124 | if (target_has_execution) | |
1125 | { | |
1126 | if (query ("A program is being debugged already. Kill it? ")) | |
1127 | target_kill (); | |
1128 | else | |
b1b4a89e | 1129 | error ("Not killed."); |
b5a3d2aa SG |
1130 | } |
1131 | ||
bd5635a1 | 1132 | target_attach (args, from_tty); |
b5a3d2aa SG |
1133 | |
1134 | /* Set up the "saved terminal modes" of the inferior | |
1135 | based on what modes we are starting it with. */ | |
1136 | target_terminal_init (); | |
1137 | ||
1138 | /* Install inferior's terminal modes. */ | |
1139 | target_terminal_inferior (); | |
1140 | ||
1141 | /* Set up execution context to know that we should return from | |
1142 | wait_for_inferior as soon as the target reports a stop. */ | |
1143 | init_wait_for_inferior (); | |
1144 | clear_proceed_status (); | |
1145 | stop_soon_quietly = 1; | |
1146 | ||
9f577285 SS |
1147 | #ifndef MACH |
1148 | /* Mach 3 does not generate any traps when attaching to inferior, | |
1149 | and to set up frames we can do this. */ | |
1150 | ||
b5a3d2aa | 1151 | wait_for_inferior (); |
9f577285 | 1152 | #endif |
b5a3d2aa SG |
1153 | |
1154 | #ifdef SOLIB_ADD | |
1155 | /* Add shared library symbols from the newly attached process, if any. */ | |
1156 | SOLIB_ADD ((char *)0, from_tty, (struct target_ops *)0); | |
1157 | #endif | |
1158 | ||
1159 | normal_stop (); | |
bd5635a1 RP |
1160 | } |
1161 | ||
1162 | /* | |
1163 | * detach_command -- | |
1164 | * takes a program previously attached to and detaches it. | |
1165 | * The program resumes execution and will no longer stop | |
1166 | * on signals, etc. We better not have left any breakpoints | |
1167 | * in the program or it'll die when it hits one. For this | |
1168 | * to work, it may be necessary for the process to have been | |
1169 | * previously attached. It *might* work if the program was | |
1170 | * started via the normal ptrace (PTRACE_TRACEME). | |
1171 | */ | |
1172 | ||
1173 | static void | |
1174 | detach_command (args, from_tty) | |
1175 | char *args; | |
1176 | int from_tty; | |
1177 | { | |
f266e564 | 1178 | dont_repeat (); /* Not for the faint of heart */ |
bd5635a1 RP |
1179 | target_detach (args, from_tty); |
1180 | } | |
1181 | ||
1182 | /* ARGSUSED */ | |
1183 | static void | |
1304f099 | 1184 | float_info (addr_exp, from_tty) |
bd5635a1 | 1185 | char *addr_exp; |
1304f099 | 1186 | int from_tty; |
bd5635a1 RP |
1187 | { |
1188 | #ifdef FLOAT_INFO | |
1189 | FLOAT_INFO; | |
1190 | #else | |
1304f099 | 1191 | printf_filtered ("No floating point info available for this processor.\n"); |
bd5635a1 RP |
1192 | #endif |
1193 | } | |
1194 | \f | |
f266e564 JK |
1195 | /* ARGSUSED */ |
1196 | static void | |
1197 | unset_command (args, from_tty) | |
1198 | char *args; | |
1199 | int from_tty; | |
1200 | { | |
1304f099 | 1201 | printf_filtered ("\"unset\" must be followed by the name of an unset subcommand.\n"); |
199b2450 | 1202 | help_list (unsetlist, "unset ", -1, gdb_stdout); |
f266e564 JK |
1203 | } |
1204 | ||
bd5635a1 RP |
1205 | void |
1206 | _initialize_infcmd () | |
1207 | { | |
1208 | struct cmd_list_element *c; | |
1209 | ||
1210 | add_com ("tty", class_run, tty_command, | |
1211 | "Set terminal for future runs of program being debugged."); | |
1212 | ||
1213 | add_show_from_set | |
1214 | (add_set_cmd ("args", class_run, var_string_noescape, (char *)&inferior_args, | |
1215 | ||
1216 | "Set arguments to give program being debugged when it is started.\n\ | |
1217 | Follow this command with any number of args, to be passed to the program.", | |
1218 | &setlist), | |
1219 | &showlist); | |
1220 | ||
1221 | c = add_cmd | |
1222 | ("environment", no_class, environment_info, | |
1223 | "The environment to give the program, or one variable's value.\n\ | |
1224 | With an argument VAR, prints the value of environment variable VAR to\n\ | |
1225 | give the program being debugged. With no arguments, prints the entire\n\ | |
1226 | environment to be given to the program.", &showlist); | |
1227 | c->completer = noop_completer; | |
1228 | ||
f266e564 JK |
1229 | add_prefix_cmd ("unset", no_class, unset_command, |
1230 | "Complement to certain \"set\" commands", | |
1231 | &unsetlist, "unset ", 0, &cmdlist); | |
1232 | ||
bd5635a1 RP |
1233 | c = add_cmd ("environment", class_run, unset_environment_command, |
1234 | "Cancel environment variable VAR for the program.\n\ | |
1235 | This does not affect the program until the next \"run\" command.", | |
f266e564 | 1236 | &unsetlist); |
bd5635a1 RP |
1237 | c->completer = noop_completer; |
1238 | ||
1239 | c = add_cmd ("environment", class_run, set_environment_command, | |
1240 | "Set environment variable value to give the program.\n\ | |
1241 | Arguments are VAR VALUE where VAR is variable name and VALUE is value.\n\ | |
1242 | VALUES of environment variables are uninterpreted strings.\n\ | |
1243 | This does not affect the program until the next \"run\" command.", | |
1244 | &setlist); | |
1245 | c->completer = noop_completer; | |
1246 | ||
1247 | add_com ("path", class_files, path_command, | |
1248 | "Add directory DIR(s) to beginning of search path for object files.\n\ | |
1249 | $cwd in the path means the current working directory.\n\ | |
1250 | This path is equivalent to the $PATH shell variable. It is a list of\n\ | |
1251 | directories, separated by colons. These directories are searched to find\n\ | |
1252 | fully linked executable files and separately compiled object files as needed."); | |
1253 | ||
ee0613d1 | 1254 | c = add_cmd ("paths", no_class, path_info, |
bd5635a1 RP |
1255 | "Current search path for finding object files.\n\ |
1256 | $cwd in the path means the current working directory.\n\ | |
1257 | This path is equivalent to the $PATH shell variable. It is a list of\n\ | |
1258 | directories, separated by colons. These directories are searched to find\n\ | |
ee0613d1 JG |
1259 | fully linked executable files and separately compiled object files as needed.", &showlist); |
1260 | c->completer = noop_completer; | |
bd5635a1 RP |
1261 | |
1262 | add_com ("attach", class_run, attach_command, | |
1263 | "Attach to a process or file outside of GDB.\n\ | |
1264 | This command attaches to another target, of the same type as your last\n\ | |
1265 | `target' command (`info files' will show your target stack).\n\ | |
1266 | The command may take as argument a process id or a device file.\n\ | |
1267 | For a process id, you must have permission to send the process a signal,\n\ | |
1268 | and it must have the same effective uid as the debugger.\n\ | |
1269 | When using \"attach\", you should use the \"file\" command to specify\n\ | |
1270 | the program running in the process, and to load its symbol table."); | |
1271 | ||
1272 | add_com ("detach", class_run, detach_command, | |
1273 | "Detach a process or file previously attached.\n\ | |
1274 | If a process, it is no longer traced, and it continues its execution. If you\n\ | |
1275 | were debugging a file, the file is closed and gdb no longer accesses it."); | |
1276 | ||
1277 | add_com ("signal", class_run, signal_command, | |
3b55fbe3 JK |
1278 | "Continue program giving it signal specified by the argument.\n\ |
1279 | An argument of \"0\" means continue program without giving it a signal."); | |
bd5635a1 RP |
1280 | |
1281 | add_com ("stepi", class_run, stepi_command, | |
1282 | "Step one instruction exactly.\n\ | |
1283 | Argument N means do this N times (or till program stops for another reason)."); | |
1284 | add_com_alias ("si", "stepi", class_alias, 0); | |
1285 | ||
1286 | add_com ("nexti", class_run, nexti_command, | |
1287 | "Step one instruction, but proceed through subroutine calls.\n\ | |
1288 | Argument N means do this N times (or till program stops for another reason)."); | |
1289 | add_com_alias ("ni", "nexti", class_alias, 0); | |
1290 | ||
1291 | add_com ("finish", class_run, finish_command, | |
1292 | "Execute until selected stack frame returns.\n\ | |
1293 | Upon return, the value returned is printed and put in the value history."); | |
1294 | ||
1295 | add_com ("next", class_run, next_command, | |
1296 | "Step program, proceeding through subroutine calls.\n\ | |
1297 | Like the \"step\" command as long as subroutine calls do not happen;\n\ | |
1298 | when they do, the call is treated as one instruction.\n\ | |
1299 | Argument N means do this N times (or till program stops for another reason)."); | |
1300 | add_com_alias ("n", "next", class_run, 1); | |
1301 | ||
1302 | add_com ("step", class_run, step_command, | |
1303 | "Step program until it reaches a different source line.\n\ | |
1304 | Argument N means do this N times (or till program stops for another reason)."); | |
1305 | add_com_alias ("s", "step", class_run, 1); | |
1306 | ||
1307 | add_com ("until", class_run, until_command, | |
1308 | "Execute until the program reaches a source line greater than the current\n\ | |
1309 | or a specified line or address or function (same args as break command).\n\ | |
1310 | Execution will also stop upon exit from the current stack frame."); | |
1311 | add_com_alias ("u", "until", class_run, 1); | |
1312 | ||
1313 | add_com ("jump", class_run, jump_command, | |
1314 | "Continue program being debugged at specified line or address.\n\ | |
1315 | Give as argument either LINENUM or *ADDR, where ADDR is an expression\n\ | |
1316 | for an address to start at."); | |
1317 | ||
1318 | add_com ("continue", class_run, continue_command, | |
1319 | "Continue program being debugged, after signal or breakpoint.\n\ | |
de6a2704 JK |
1320 | If proceeding from breakpoint, a number N may be used as an argument,\n\ |
1321 | which means to set the ignore count of that breakpoint to N - 1 (so that\n\ | |
1322 | the breakpoint won't break until the Nth time it is reached)."); | |
bd5635a1 RP |
1323 | add_com_alias ("c", "cont", class_run, 1); |
1324 | add_com_alias ("fg", "cont", class_run, 1); | |
1325 | ||
1326 | add_com ("run", class_run, run_command, | |
1327 | "Start debugged program. You may specify arguments to give it.\n\ | |
1328 | Args may include \"*\", or \"[...]\"; they are expanded using \"sh\".\n\ | |
1329 | Input and output redirection with \">\", \"<\", or \">>\" are also allowed.\n\n\ | |
b4fde6fa | 1330 | With no arguments, uses arguments last specified (with \"run\" or \"set args\").\n\ |
bd5635a1 RP |
1331 | To cancel previous arguments and run with no arguments,\n\ |
1332 | use \"set args\" without arguments."); | |
1333 | add_com_alias ("r", "run", class_run, 1); | |
1334 | ||
ee0613d1 JG |
1335 | add_info ("registers", nofp_registers_info, |
1336 | "List of integer registers and their contents, for selected stack frame.\n\ | |
1337 | Register name as argument means describe only that register."); | |
1338 | ||
1339 | add_info ("all-registers", all_registers_info, | |
1340 | "List of all registers and their contents, for selected stack frame.\n\ | |
bd5635a1 RP |
1341 | Register name as argument means describe only that register."); |
1342 | ||
1343 | add_info ("program", program_info, | |
1344 | "Execution status of the program."); | |
1345 | ||
1346 | add_info ("float", float_info, | |
1347 | "Print the status of the floating point unit\n"); | |
1348 | ||
1349 | inferior_args = savestring ("", 1); /* Initially no args */ | |
1350 | inferior_environ = make_environ (); | |
1351 | init_environ (inferior_environ); | |
1352 | } |