clang -cc1 -cc1 -triple amd64-unknown-openbsd7.0 -analyze -disable-free -disable-llvm-verifier -discard-value-names -main-file-name cli-cmds.c -analyzer-store=region -analyzer-opt-analyze-nested-blocks -analyzer-checker=core -analyzer-checker=apiModeling -analyzer-checker=unix -analyzer-checker=deadcode -analyzer-checker=security.insecureAPI.UncheckedReturn -analyzer-checker=security.insecureAPI.getpw -analyzer-checker=security.insecureAPI.gets -analyzer-checker=security.insecureAPI.mktemp -analyzer-checker=security.insecureAPI.mkstemp -analyzer-checker=security.insecureAPI.vfork -analyzer-checker=nullability.NullPassedToNonnull -analyzer-checker=nullability.NullReturnedFromNonnull -analyzer-output plist -w -setup-static-analyzer -mrelocation-model pic -pic-level 1 -pic-is-pie -mframe-pointer=all -relaxed-aliasing -fno-rounding-math -mconstructor-aliases -munwind-tables -target-cpu x86-64 -target-feature +retpoline-indirect-calls -target-feature +retpoline-indirect-branches -tune-cpu generic -debugger-tuning=gdb -fcoverage-compilation-dir=/usr/src/gnu/usr.bin/binutils/obj/gdb -resource-dir /usr/local/lib/clang/13.0.0 -D PIE_DEFAULT=1 -I . -I /usr/src/gnu/usr.bin/binutils/gdb -I /usr/src/gnu/usr.bin/binutils/gdb/config -D LOCALEDIR="/usr/share/locale" -D HAVE_CONFIG_H -I /usr/src/gnu/usr.bin/binutils/gdb/../include/opcode -I ../bfd -I /usr/src/gnu/usr.bin/binutils/gdb/../bfd -I /usr/src/gnu/usr.bin/binutils/gdb/../include -I ../intl -I /usr/src/gnu/usr.bin/binutils/gdb/../intl -D MI_OUT=1 -D TUI=1 -internal-isystem /usr/local/lib/clang/13.0.0/include -internal-externc-isystem /usr/include -O2 -fdebug-compilation-dir=/usr/src/gnu/usr.bin/binutils/obj/gdb -ferror-limit 19 -fwrapv -D_RET_PROTECTOR -ret-protector -fgnuc-version=4.2.1 -fcommon -vectorize-loops -vectorize-slp -fno-builtin-malloc -fno-builtin-calloc -fno-builtin-realloc -fno-builtin-valloc -fno-builtin-free -fno-builtin-strdup -fno-builtin-strndup -analyzer-output=html -faddrsig -D__GCC_HAVE_DWARF2_CFI_ASM=1 -o /home/ben/Projects/vmm/scan-build/2022-01-12-194120-40624-1 -x c /usr/src/gnu/usr.bin/binutils/gdb/cli/cli-cmds.c
1 | |
2 | |
3 | |
4 | |
5 | |
6 | |
7 | |
8 | |
9 | |
10 | |
11 | |
12 | |
13 | |
14 | |
15 | |
16 | |
17 | |
18 | |
19 | |
20 | |
21 | |
22 | #include "defs.h" |
23 | #include "readline/readline.h" |
24 | #include "readline/tilde.h" |
25 | #include "completer.h" |
26 | #include "target.h" /* For baud_rate, remote_debug and remote_timeout */ |
27 | #include "gdb_wait.h" /* For shell escape implementation */ |
28 | #include "gdb_regex.h" /* Used by apropos_command */ |
29 | #include "gdb_string.h" |
30 | #include "gdb_vfork.h" |
31 | #include "linespec.h" |
32 | #include "expression.h" |
33 | #include "frame.h" |
34 | #include "value.h" |
35 | #include "language.h" |
36 | #include "filenames.h" /* for DOSish file names */ |
37 | #include "objfiles.h" |
38 | #include "source.h" |
39 | #include "disasm.h" |
40 | |
41 | #include "ui-out.h" |
42 | |
43 | #include "top.h" |
44 | #include "cli/cli-decode.h" |
45 | #include "cli/cli-script.h" |
46 | #include "cli/cli-setshow.h" |
47 | #include "cli/cli-cmds.h" |
48 | |
49 | #ifdef TUI |
50 | #include "tui/tui.h" /* For tui_active et.al. */ |
51 | #endif |
52 | |
53 | #ifndef GDBINIT_FILENAME |
54 | #define GDBINIT_FILENAME ".gdbinit" |
55 | #endif |
56 | |
57 | |
58 | |
59 | static void complete_command (char *, int); |
60 | |
61 | static void echo_command (char *, int); |
62 | |
63 | static void pwd_command (char *, int); |
64 | |
65 | static void show_version (char *, int); |
66 | |
67 | static void help_command (char *, int); |
68 | |
69 | static void show_command (char *, int); |
70 | |
71 | static void info_command (char *, int); |
72 | |
73 | static void show_debug (char *, int); |
74 | |
75 | static void set_debug (char *, int); |
76 | |
77 | static void show_user (char *, int); |
78 | |
79 | static void make_command (char *, int); |
80 | |
81 | static void shell_escape (char *, int); |
82 | |
83 | static void edit_command (char *, int); |
84 | |
85 | static void list_command (char *, int); |
86 | |
87 | void apropos_command (char *, int); |
88 | |
89 | |
90 | |
91 | static void ambiguous_line_spec (struct symtabs_and_lines *); |
92 |
|
93 | |
94 | int max_user_call_depth; |
95 | |
96 | |
97 | |
98 | |
99 | |
100 | struct cmd_list_element *cmdlist; |
101 | |
102 | |
103 | |
104 | struct cmd_list_element *infolist; |
105 | |
106 | |
107 | |
108 | struct cmd_list_element *enablelist; |
109 | |
110 | |
111 | |
112 | struct cmd_list_element *disablelist; |
113 | |
114 | |
115 | |
116 | struct cmd_list_element *togglelist; |
117 | |
118 | |
119 | |
120 | struct cmd_list_element *stoplist; |
121 | |
122 | |
123 | |
124 | struct cmd_list_element *deletelist; |
125 | |
126 | |
127 | |
128 | struct cmd_list_element *enablebreaklist; |
129 | |
130 | |
131 | |
132 | struct cmd_list_element *setlist; |
133 | |
134 | |
135 | |
136 | struct cmd_list_element *unsetlist; |
137 | |
138 | |
139 | |
140 | struct cmd_list_element *showlist; |
141 | |
142 | |
143 | |
144 | struct cmd_list_element *sethistlist; |
145 | |
146 | |
147 | |
148 | struct cmd_list_element *showhistlist; |
149 | |
150 | |
151 | |
152 | struct cmd_list_element *unsethistlist; |
153 | |
154 | |
155 | |
156 | struct cmd_list_element *maintenancelist; |
157 | |
158 | |
159 | |
160 | struct cmd_list_element *maintenanceinfolist; |
161 | |
162 | |
163 | |
164 | struct cmd_list_element *maintenanceprintlist; |
165 | |
166 | struct cmd_list_element *setprintlist; |
167 | |
168 | struct cmd_list_element *showprintlist; |
169 | |
170 | struct cmd_list_element *setdebuglist; |
171 | |
172 | struct cmd_list_element *showdebuglist; |
173 | |
174 | struct cmd_list_element *setchecklist; |
175 | |
176 | struct cmd_list_element *showchecklist; |
177 |
|
178 | |
179 | |
180 | |
181 | void |
182 | error_no_arg (char *why) |
183 | { |
184 | error ("Argument required (%s).", why); |
185 | } |
186 | |
187 | |
188 | |
189 | |
190 | static void |
191 | info_command (char *arg, int from_tty) |
192 | { |
193 | printf_unfiltered ("\"info\" must be followed by the name of an info command.\n"); |
194 | help_list (infolist, "info ", -1, gdb_stdout); |
195 | } |
196 | |
197 | |
198 | |
199 | static void |
200 | show_command (char *arg, int from_tty) |
201 | { |
202 | cmd_show_list (showlist, from_tty, ""); |
203 | } |
204 |
|
205 | |
206 | |
207 | |
208 | static void |
209 | help_command (char *command, int from_tty) |
210 | { |
211 | help_cmd (command, gdb_stdout); |
212 | } |
213 |
|
214 | |
215 | static int |
216 | compare_strings (const void *arg1, const void *arg2) |
217 | { |
218 | const char **s1 = (const char **) arg1; |
219 | const char **s2 = (const char **) arg2; |
220 | return strcmp (*s1, *s2); |
221 | } |
222 | |
223 | |
224 | |
225 | static void |
226 | complete_command (char *arg, int from_tty) |
227 | { |
228 | int i; |
229 | int argpoint; |
230 | char **completions, *point, *arg_prefix; |
231 | |
232 | dont_repeat (); |
233 | |
234 | if (arg == NULL) |
235 | arg = ""; |
236 | argpoint = strlen (arg); |
237 | |
238 | |
239 | |
240 | |
241 | |
242 | point = arg + argpoint; |
243 | while (point > arg) |
244 | { |
245 | if (strchr (rl_completer_word_break_characters, point[-1]) != 0) |
246 | break; |
247 | point--; |
248 | } |
249 | |
250 | arg_prefix = alloca (point - arg + 1); |
251 | memcpy (arg_prefix, arg, point - arg); |
252 | arg_prefix[point - arg] = 0; |
253 | |
254 | completions = complete_line (point, arg, argpoint); |
255 | |
256 | if (completions) |
257 | { |
258 | int item, size; |
259 | |
260 | for (size = 0; completions[size]; ++size) |
261 | ; |
262 | qsort (completions, size, sizeof (char *), compare_strings); |
263 | |
264 | |
265 | |
266 | item = 0; |
267 | while (item < size) |
268 | { |
269 | int next_item; |
270 | printf_unfiltered ("%s%s\n", arg_prefix, completions[item]); |
271 | next_item = item + 1; |
272 | while (next_item < size |
273 | && ! strcmp (completions[item], completions[next_item])) |
274 | { |
275 | xfree (completions[next_item]); |
276 | ++next_item; |
277 | } |
278 | |
279 | xfree (completions[item]); |
280 | item = next_item; |
281 | } |
282 | |
283 | xfree (completions); |
284 | } |
285 | } |
286 | |
287 | int |
288 | is_complete_command (struct cmd_list_element *c) |
289 | { |
290 | return cmd_cfunc_eq (c, complete_command); |
291 | } |
292 | |
293 | static void |
294 | show_version (char *args, int from_tty) |
295 | { |
296 | immediate_quit++; |
297 | print_gdb_version (gdb_stdout); |
298 | printf_filtered ("\n"); |
299 | immediate_quit--; |
300 | } |
301 | |
302 | |
303 | |
304 | void |
305 | quit_command (char *args, int from_tty) |
306 | { |
307 | if (!quit_confirm ()) |
308 | error ("Not confirmed."); |
309 | quit_force (args, from_tty); |
310 | } |
311 | |
312 | static void |
313 | pwd_command (char *args, int from_tty) |
314 | { |
315 | if (args) |
316 | error ("The \"pwd\" command does not take an argument: %s", args); |
317 | getcwd (gdb_dirbuf, sizeof (gdb_dirbuf)); |
318 | |
319 | if (strcmp (gdb_dirbuf, current_directory) != 0) |
320 | printf_unfiltered ("Working directory %s\n (canonically %s).\n", |
321 | current_directory, gdb_dirbuf); |
322 | else |
323 | printf_unfiltered ("Working directory %s.\n", current_directory); |
324 | } |
325 | |
326 | void |
327 | cd_command (char *dir, int from_tty) |
328 | { |
329 | int len; |
330 | |
331 | int found_real_path; |
332 | char *p; |
333 | |
334 | |
335 | |
336 | dont_repeat (); |
337 | |
338 | if (dir == 0) |
339 | error_no_arg ("new working directory"); |
340 | |
341 | dir = tilde_expand (dir); |
342 | make_cleanup (xfree, dir); |
343 | |
344 | if (chdir (dir) < 0) |
345 | perror_with_name (dir); |
346 | |
347 | #ifdef HAVE_DOS_BASED_FILE_SYSTEM |
348 | |
349 | |
350 | |
351 | dir = getcwd (gdb_dirbuf, sizeof (gdb_dirbuf)); |
352 | #endif |
353 | |
354 | len = strlen (dir); |
355 | if (IS_DIR_SEPARATOR (dir[len - 1])) |
356 | { |
357 | |
358 | |
359 | if (!(len == 1) |
360 | #ifdef HAVE_DOS_BASED_FILE_SYSTEM |
361 | && !(len == 3 && dir[1] == ':') |
362 | #endif |
363 | ) |
364 | len--; |
365 | } |
366 | |
367 | dir = savestring (dir, len); |
368 | if (IS_ABSOLUTE_PATH (dir)) |
369 | current_directory = dir; |
370 | else |
371 | { |
372 | if (IS_DIR_SEPARATOR (current_directory[strlen (current_directory) - 1])) |
373 | current_directory = concat (current_directory, dir, NULL); |
374 | else |
375 | current_directory = concat (current_directory, SLASH_STRING, dir, NULL); |
376 | xfree (dir); |
377 | } |
378 | |
379 | |
380 | |
381 | found_real_path = 0; |
382 | for (p = current_directory; *p;) |
383 | { |
384 | if (IS_DIR_SEPARATOR (p[0]) && p[1] == '.' |
385 | && (p[2] == 0 || IS_DIR_SEPARATOR (p[2]))) |
386 | strcpy (p, p + 2); |
387 | else if (IS_DIR_SEPARATOR (p[0]) && p[1] == '.' && p[2] == '.' |
388 | && (p[3] == 0 || IS_DIR_SEPARATOR (p[3]))) |
389 | { |
390 | if (found_real_path) |
391 | { |
392 | |
393 | |
394 | char *q = p; |
395 | while (q != current_directory && !IS_DIR_SEPARATOR (q[-1])) |
396 | --q; |
397 | |
398 | if (q == current_directory) |
399 | |
400 | |
401 | ++p; |
402 | else |
403 | { |
404 | strcpy (q - 1, p + 3); |
405 | p = q - 1; |
406 | } |
407 | } |
408 | else |
409 | |
410 | |
411 | p += 3; |
412 | } |
413 | else |
414 | { |
415 | found_real_path = 1; |
416 | ++p; |
417 | } |
418 | } |
419 | |
420 | forget_cached_source_info (); |
421 | |
422 | if (from_tty) |
423 | pwd_command ((char *) 0, 1); |
424 | } |
425 |
|
426 | void |
427 | source_command (char *args, int from_tty) |
428 | { |
429 | FILE *stream; |
430 | struct cleanup *old_cleanups; |
431 | char *file = args; |
432 | |
433 | if (file == NULL) |
434 | { |
435 | error ("source command requires pathname of file to source."); |
436 | } |
437 | |
438 | file = tilde_expand (file); |
439 | old_cleanups = make_cleanup (xfree, file); |
440 | |
441 | stream = fopen (file, FOPEN_RT); |
442 | if (!stream) |
443 | { |
444 | if (from_tty) |
445 | perror_with_name (file); |
446 | else |
447 | return; |
448 | } |
449 | |
450 | script_from_file (stream, file); |
451 | |
452 | do_cleanups (old_cleanups); |
453 | } |
454 | |
455 | static void |
456 | echo_command (char *text, int from_tty) |
457 | { |
458 | char *p = text; |
459 | int c; |
460 | |
461 | if (text) |
462 | while ((c = *p++) != '\0') |
463 | { |
464 | if (c == '\\') |
465 | { |
466 | |
467 | |
468 | if (*p == 0) |
469 | return; |
470 | |
471 | c = parse_escape (&p); |
472 | if (c >= 0) |
473 | printf_filtered ("%c", c); |
474 | } |
475 | else |
476 | printf_filtered ("%c", c); |
477 | } |
478 | |
479 | |
480 | wrap_here (""); |
481 | gdb_flush (gdb_stdout); |
482 | } |
483 | |
484 | static void |
485 | shell_escape (char *arg, int from_tty) |
486 | { |
487 | #ifdef CANT_FORK |
488 | |
489 | |
490 | int rc = system (arg ? arg : ""); |
491 | |
492 | if (!arg) |
493 | arg = "inferior shell"; |
494 | |
495 | if (rc == -1) |
496 | { |
497 | fprintf_unfiltered (gdb_stderr, "Cannot execute %s: %s\n", arg, |
498 | safe_strerror (errno)); |
499 | gdb_flush (gdb_stderr); |
500 | } |
501 | else if (rc) |
502 | { |
503 | fprintf_unfiltered (gdb_stderr, "%s exited with status %d\n", arg, rc); |
504 | gdb_flush (gdb_stderr); |
505 | } |
506 | #ifdef GLOBAL_CURDIR |
507 | |
508 | |
509 | chdir (current_directory); |
510 | #endif |
511 | #else /* Can fork. */ |
512 | int rc, status, pid; |
513 | |
514 | if ((pid = vfork ()) == 0) |
515 | { |
516 | char *p, *user_shell; |
517 | |
518 | if ((user_shell = (char *) getenv ("SHELL")) == NULL) |
519 | user_shell = "/bin/sh"; |
520 | |
521 | |
522 | if ((p = strrchr (user_shell, '/')) == NULL) |
523 | p = user_shell; |
524 | else |
525 | p++; |
526 | |
527 | if (!arg) |
528 | execl (user_shell, p, (char *) 0); |
529 | else |
530 | execl (user_shell, p, "-c", arg, (char *) 0); |
531 | |
532 | fprintf_unfiltered (gdb_stderr, "Cannot execute %s: %s\n", user_shell, |
533 | safe_strerror (errno)); |
534 | gdb_flush (gdb_stderr); |
535 | _exit (0177); |
536 | } |
537 | |
538 | if (pid != -1) |
539 | while ((rc = wait (&status)) != pid && rc != -1) |
540 | ; |
541 | else |
542 | error ("Fork failed"); |
543 | #endif /* Can fork. */ |
544 | } |
545 | |
546 | static void |
547 | edit_command (char *arg, int from_tty) |
548 | { |
549 | struct symtabs_and_lines sals; |
550 | struct symtab_and_line sal; |
551 | struct symbol *sym; |
552 | char *arg1; |
553 | int cmdlen, log10; |
554 | unsigned m; |
555 | char *editor; |
556 | char *p; |
557 | |
558 | |
559 | if (arg == 0) |
560 | { |
561 | set_default_source_symtab_and_line (); |
562 | sal = get_current_source_symtab_and_line (); |
563 | } |
564 | |
565 | |
566 | |
567 | if (arg == 0) |
568 | { |
569 | if (sal.symtab == 0) |
570 | error ("No default source file yet."); |
571 | sal.line += get_lines_to_list () / 2; |
572 | } |
573 | else |
574 | { |
575 | |
576 | |
577 | |
578 | arg1 = arg; |
579 | sals = decode_line_1 (&arg1, 0, 0, 0, 0, 0); |
580 | |
581 | if (! sals.nelts) return; |
582 | if (sals.nelts > 1) { |
583 | ambiguous_line_spec (&sals); |
584 | xfree (sals.sals); |
585 | return; |
586 | } |
587 | |
588 | sal = sals.sals[0]; |
589 | xfree (sals.sals); |
590 | |
591 | if (*arg1) |
592 | error ("Junk at end of line specification."); |
593 | |
594 | |
595 | |
596 | |
597 | |
598 | if (*arg == '*') |
599 | { |
600 | if (sal.symtab == 0) |
601 | |
602 | error ("No source file for address %s.", |
603 | hex_string ((unsigned long) sal.pc)); |
604 | sym = find_pc_function (sal.pc); |
605 | if (sym) |
606 | { |
607 | print_address_numeric (sal.pc, 1, gdb_stdout); |
608 | printf_filtered (" is in "); |
609 | fputs_filtered (SYMBOL_PRINT_NAME (sym), gdb_stdout); |
610 | printf_filtered (" (%s:%d).\n", sal.symtab->filename, sal.line); |
611 | } |
612 | else |
613 | { |
614 | print_address_numeric (sal.pc, 1, gdb_stdout); |
615 | printf_filtered (" is at %s:%d.\n", |
616 | sal.symtab->filename, sal.line); |
617 | } |
618 | } |
619 | |
620 | |
621 | |
622 | |
623 | if (sal.symtab == 0) |
624 | error ("No line number known for %s.", arg); |
625 | } |
626 | |
627 | if ((editor = (char *) getenv ("EDITOR")) == NULL) |
628 | editor = "/bin/ex"; |
629 | |
630 | |
631 | for(log10=32, m=0x80000000; !(sal.line & m) && log10>0; log10--, m=m>>1); |
632 | log10 = 1 + (int)((log10 + (0 == ((m-1) & sal.line)))/3.32192809); |
633 | |
634 | cmdlen = strlen(editor) + 1 |
635 | + (NULL == sal.symtab->dirname ? 0 : strlen(sal.symtab->dirname) + 1) |
636 | + (NULL == sal.symtab->filename? 0 : strlen(sal.symtab->filename)+ 1) |
637 | + log10 + 2; |
638 | |
639 | p = xmalloc(cmdlen); |
640 | sprintf(p,"%s +%d %s%s",editor,sal.line, |
641 | (NULL == sal.symtab->dirname ? "./" : |
642 | (NULL != sal.symtab->filename && *(sal.symtab->filename) != '/') ? |
643 | sal.symtab->dirname : ""), |
644 | (NULL == sal.symtab->filename ? "unknown" : sal.symtab->filename) |
645 | ); |
646 | shell_escape(p, from_tty); |
647 | |
648 | xfree(p); |
649 | } |
650 | |
651 | static void |
652 | list_command (char *arg, int from_tty) |
653 | { |
654 | struct symtabs_and_lines sals, sals_end; |
655 | struct symtab_and_line sal, sal_end, cursal; |
656 | struct symbol *sym; |
657 | char *arg1; |
658 | int no_end = 1; |
659 | int dummy_end = 0; |
660 | int dummy_beg = 0; |
661 | int linenum_beg = 0; |
662 | char *p; |
663 | |
664 | |
665 | if (arg == 0 || arg[0] == '+' || arg[0] == '-') |
| 1 | Assuming 'arg' is not equal to null | |
|
| 2 | | Assuming the condition is false | |
|
| 3 | | Assuming the condition is false | |
|
| |
666 | { |
667 | set_default_source_symtab_and_line (); |
668 | cursal = get_current_source_symtab_and_line (); |
669 | } |
670 | |
671 | |
672 | |
673 | if (arg == 0 || strcmp (arg, "+") == 0) |
| 5 | | Assuming the condition is false | |
|
| |
674 | { |
675 | print_source_lines (cursal.symtab, cursal.line, |
676 | cursal.line + get_lines_to_list (), 0); |
677 | return; |
678 | } |
679 | |
680 | |
681 | if (strcmp (arg, "-") == 0) |
| 7 | | Assuming the condition is false | |
|
| |
682 | { |
683 | print_source_lines (cursal.symtab, |
684 | max (get_first_line_listed () - get_lines_to_list (), 1), |
685 | get_first_line_listed (), 0); |
686 | return; |
687 | } |
688 | |
689 | |
690 | |
691 | |
692 | |
693 | |
694 | |
695 | if (!have_full_symbols () && !have_partial_symbols ()) |
| 9 | | Assuming the condition is false | |
|
696 | error ("No symbol table is loaded. Use the \"file\" command."); |
697 | |
698 | arg1 = arg; |
699 | if (*arg1 == ',') |
| 10 | | Assuming the condition is true | |
|
| |
700 | dummy_beg = 1; |
701 | else |
702 | { |
703 | sals = decode_line_1 (&arg1, 0, 0, 0, 0, 0); |
704 | |
705 | if (!sals.nelts) |
706 | return; |
707 | if (sals.nelts > 1) |
708 | { |
709 | ambiguous_line_spec (&sals); |
710 | xfree (sals.sals); |
711 | return; |
712 | } |
713 | |
714 | sal = sals.sals[0]; |
715 | xfree (sals.sals); |
716 | } |
717 | |
718 | |
719 | |
720 | for (p = arg; p != arg1 && *p >= '0' && *p <= '9'; p++); |
721 | linenum_beg = (p == arg1); |
722 | |
723 | while (*arg1 == ' ' || *arg1 == '\t') |
| 12 | | Loop condition is false. Execution continues on line 725 | |
|
724 | arg1++; |
725 | if (*arg1 == ',') |
| |
726 | { |
727 | no_end = 0; |
728 | arg1++; |
729 | while (*arg1 == ' ' || *arg1 == '\t') |
| 14 | | Assuming the condition is false | |
|
| 15 | | Assuming the condition is false | |
|
| 16 | | Loop condition is false. Execution continues on line 731 | |
|
730 | arg1++; |
731 | if (*arg1 == 0) |
| 17 | | Assuming the condition is false | |
|
| |
732 | dummy_end = 1; |
733 | else |
734 | { |
735 | if (dummy_beg) |
| |
736 | sals_end = decode_line_1 (&arg1, 0, 0, 0, 0, 0); |
737 | else |
738 | sals_end = decode_line_1 (&arg1, 0, sal.symtab, sal.line, 0, 0); |
739 | if (sals_end.nelts == 0) |
| 20 | | Assuming field 'nelts' is not equal to 0 | |
|
| |
740 | return; |
741 | if (sals_end.nelts > 1) |
| 22 | | Assuming field 'nelts' is <= 1 | |
|
| |
742 | { |
743 | ambiguous_line_spec (&sals_end); |
744 | xfree (sals_end.sals); |
745 | return; |
746 | } |
747 | sal_end = sals_end.sals[0]; |
748 | xfree (sals_end.sals); |
749 | } |
750 | } |
751 | |
752 | if (*arg1) |
| 24 | | Assuming the condition is false | |
|
| |
753 | error ("Junk at end of line specification."); |
754 | |
755 | if (!no_end && !dummy_beg && !dummy_end |
756 | && sal.symtab != sal_end.symtab) |
757 | error ("Specified start and end are in different files."); |
758 | if (dummy_beg && dummy_end) |
| |
759 | error ("Two empty args do not say what lines to list."); |
760 | |
761 | |
762 | |
763 | |
764 | |
765 | if (*arg == '*') |
| 27 | | Assuming the condition is true | |
|
| |
766 | { |
767 | if (sal.symtab == 0) |
| 29 | | The left operand of '==' is a garbage value |
|
768 | |
769 | error ("No source file for address %s.", |
770 | hex_string ((unsigned long) sal.pc)); |
771 | sym = find_pc_function (sal.pc); |
772 | if (sym) |
773 | { |
774 | print_address_numeric (sal.pc, 1, gdb_stdout); |
775 | printf_filtered (" is in "); |
776 | fputs_filtered (SYMBOL_PRINT_NAME (sym), gdb_stdout); |
777 | printf_filtered (" (%s:%d).\n", sal.symtab->filename, sal.line); |
778 | } |
779 | else |
780 | { |
781 | print_address_numeric (sal.pc, 1, gdb_stdout); |
782 | printf_filtered (" is at %s:%d.\n", |
783 | sal.symtab->filename, sal.line); |
784 | } |
785 | } |
786 | |
787 | |
788 | |
789 | |
790 | |
791 | if (!linenum_beg && sal.symtab == 0) |
792 | error ("No line number known for %s.", arg); |
793 | |
794 | |
795 | |
796 | |
797 | if (from_tty) |
798 | *arg = 0; |
799 | |
800 | if (dummy_beg && sal_end.symtab == 0) |
801 | error ("No default source file yet. Do \"help list\"."); |
802 | if (dummy_beg) |
803 | print_source_lines (sal_end.symtab, |
804 | max (sal_end.line - (get_lines_to_list () - 1), 1), |
805 | sal_end.line + 1, 0); |
806 | else if (sal.symtab == 0) |
807 | error ("No default source file yet. Do \"help list\"."); |
808 | else if (no_end) |
809 | { |
810 | int first_line = sal.line - get_lines_to_list () / 2; |
811 | |
812 | if (first_line < 1) first_line = 1; |
813 | |
814 | print_source_lines (sal.symtab, |
815 | first_line, |
816 | first_line + get_lines_to_list (), |
817 | 0); |
818 | } |
819 | else |
820 | print_source_lines (sal.symtab, sal.line, |
821 | (dummy_end |
822 | ? sal.line + get_lines_to_list () |
823 | : sal_end.line + 1), |
824 | 0); |
825 | } |
826 | |
827 | |
828 | |
829 | |
830 | |
831 | |
832 | |
833 | |
834 | static void |
835 | disassemble_command (char *arg, int from_tty) |
836 | { |
837 | CORE_ADDR low, high; |
838 | char *name; |
839 | CORE_ADDR pc, pc_masked; |
840 | char *space_index; |
841 | #if 0 |
842 | asection *section; |
843 | #endif |
844 | |
845 | name = NULL; |
846 | if (!arg) |
847 | { |
848 | if (!deprecated_selected_frame) |
849 | error ("No frame selected.\n"); |
850 | |
851 | pc = get_frame_pc (deprecated_selected_frame); |
852 | if (find_pc_partial_function (pc, &name, &low, &high) == 0) |
853 | error ("No function contains program counter for selected frame.\n"); |
854 | #if defined(TUI) |
855 | |
856 | |
857 | if (tui_active) |
858 | |
859 | low = tui_get_low_disassembly_address (low, pc); |
860 | #endif |
861 | low += DEPRECATED_FUNCTION_START_OFFSET; |
862 | } |
863 | else if (!(space_index = (char *) strchr (arg, ' '))) |
864 | { |
865 | |
866 | pc = parse_and_eval_address (arg); |
867 | if (find_pc_partial_function (pc, &name, &low, &high) == 0) |
868 | error ("No function contains specified address.\n"); |
869 | #if defined(TUI) |
870 | |
871 | |
872 | if (tui_active) |
873 | |
874 | low = tui_get_low_disassembly_address (low, pc); |
875 | #endif |
876 | low += DEPRECATED_FUNCTION_START_OFFSET; |
877 | } |
878 | else |
879 | { |
880 | |
881 | *space_index = '\0'; |
882 | low = parse_and_eval_address (arg); |
883 | high = parse_and_eval_address (space_index + 1); |
884 | } |
885 | |
886 | #if defined(TUI) |
887 | if (!tui_is_window_visible (DISASSEM_WIN)) |
888 | #endif |
889 | { |
890 | printf_filtered ("Dump of assembler code "); |
891 | if (name != NULL) |
892 | { |
893 | printf_filtered ("for function %s:\n", name); |
894 | } |
895 | else |
896 | { |
897 | printf_filtered ("from "); |
898 | print_address_numeric (low, 1, gdb_stdout); |
899 | printf_filtered (" to "); |
900 | print_address_numeric (high, 1, gdb_stdout); |
901 | printf_filtered (":\n"); |
902 | } |
903 | |
904 | |
905 | gdb_disassembly (uiout, 0, 0, 0, -1, low, high); |
906 | |
907 | printf_filtered ("End of assembler dump.\n"); |
908 | gdb_flush (gdb_stdout); |
909 | } |
910 | #if defined(TUI) |
911 | else |
912 | { |
913 | tui_show_assembly (low); |
914 | } |
915 | #endif |
916 | } |
917 | |
918 | static void |
919 | make_command (char *arg, int from_tty) |
920 | { |
921 | char *p; |
922 | |
923 | if (arg == 0) |
924 | p = "make"; |
925 | else |
926 | { |
927 | p = xmalloc (sizeof ("make ") + strlen (arg)); |
928 | strcpy (p, "make "); |
929 | strcpy (p + sizeof ("make ") - 1, arg); |
930 | } |
931 | |
932 | shell_escape (p, from_tty); |
933 | } |
934 | |
935 | static void |
936 | show_user (char *args, int from_tty) |
937 | { |
938 | struct cmd_list_element *c; |
939 | extern struct cmd_list_element *cmdlist; |
940 | |
941 | if (args) |
942 | { |
943 | c = lookup_cmd (&args, cmdlist, "", 0, 1); |
944 | if (c->class != class_user) |
945 | error ("Not a user command."); |
946 | show_user_1 (c, gdb_stdout); |
947 | } |
948 | else |
949 | { |
950 | for (c = cmdlist; c; c = c->next) |
951 | { |
952 | if (c->class == class_user) |
953 | show_user_1 (c, gdb_stdout); |
954 | } |
955 | } |
956 | } |
957 | |
958 | |
959 | |
960 | |
961 | void |
962 | apropos_command (char *searchstr, int from_tty) |
963 | { |
964 | extern struct cmd_list_element *cmdlist; |
965 | regex_t pattern; |
966 | char *pattern_fastmap; |
967 | char errorbuffer[512]; |
968 | pattern_fastmap = xcalloc (256, sizeof (char)); |
969 | if (searchstr == NULL) |
970 | error("REGEXP string is empty"); |
971 | |
972 | if (regcomp(&pattern,searchstr,REG_ICASE) == 0) |
973 | { |
974 | pattern.fastmap=pattern_fastmap; |
975 | re_compile_fastmap(&pattern); |
976 | apropos_cmd (gdb_stdout,cmdlist,&pattern,""); |
977 | } |
978 | else |
979 | { |
980 | regerror(regcomp(&pattern,searchstr,REG_ICASE),NULL,errorbuffer,512); |
981 | error("Error in regular expression:%s",errorbuffer); |
982 | } |
983 | xfree (pattern_fastmap); |
984 | } |
985 |
|
986 | |
987 | |
988 | |
989 | |
990 | |
991 | static void |
992 | ambiguous_line_spec (struct symtabs_and_lines *sals) |
993 | { |
994 | int i; |
995 | |
996 | for (i = 0; i < sals->nelts; ++i) |
997 | printf_filtered ("file: \"%s\", line number: %d\n", |
998 | sals->sals[i].symtab->filename, sals->sals[i].line); |
999 | } |
1000 | |
1001 | static void |
1002 | set_debug (char *arg, int from_tty) |
1003 | { |
1004 | printf_unfiltered ("\"set debug\" must be followed by the name of a print subcommand.\n"); |
1005 | help_list (setdebuglist, "set debug ", -1, gdb_stdout); |
1006 | } |
1007 | |
1008 | static void |
1009 | show_debug (char *args, int from_tty) |
1010 | { |
1011 | cmd_show_list (showdebuglist, from_tty, ""); |
1012 | } |
1013 | |
1014 | void |
1015 | init_cmd_lists (void) |
1016 | { |
1017 | max_user_call_depth = 1024; |
1018 | |
1019 | cmdlist = NULL; |
1020 | infolist = NULL; |
1021 | enablelist = NULL; |
1022 | disablelist = NULL; |
1023 | togglelist = NULL; |
1024 | stoplist = NULL; |
1025 | deletelist = NULL; |
1026 | enablebreaklist = NULL; |
1027 | setlist = NULL; |
1028 | unsetlist = NULL; |
1029 | showlist = NULL; |
1030 | sethistlist = NULL; |
1031 | showhistlist = NULL; |
1032 | unsethistlist = NULL; |
1033 | maintenancelist = NULL; |
1034 | maintenanceinfolist = NULL; |
1035 | maintenanceprintlist = NULL; |
1036 | setprintlist = NULL; |
1037 | showprintlist = NULL; |
1038 | setchecklist = NULL; |
1039 | showchecklist = NULL; |
1040 | } |
1041 | |
1042 |
|
1043 | void |
1044 | init_cli_cmds (void) |
1045 | { |
1046 | struct cmd_list_element *c; |
1047 | |
1048 | |
1049 | |
1050 | |
1051 | add_cmd ("internals", class_maintenance, NULL, |
1052 | "Maintenance commands.\n\ |
1053 | Some gdb commands are provided just for use by gdb maintainers.\n\ |
1054 | These commands are subject to frequent change, and may not be as\n\ |
1055 | well documented as user commands.", |
1056 | &cmdlist); |
1057 | add_cmd ("obscure", class_obscure, NULL, "Obscure features.", &cmdlist); |
1058 | add_cmd ("aliases", class_alias, NULL, "Aliases of other commands.", &cmdlist); |
1059 | add_cmd ("user-defined", class_user, NULL, "User-defined commands.\n\ |
1060 | The commands in this class are those defined by the user.\n\ |
1061 | Use the \"define\" command to define a command.", &cmdlist); |
1062 | add_cmd ("support", class_support, NULL, "Support facilities.", &cmdlist); |
1063 | if (!dbx_commands) |
1064 | add_cmd ("status", class_info, NULL, "Status inquiries.", &cmdlist); |
1065 | add_cmd ("files", class_files, NULL, "Specifying and examining files.", &cmdlist); |
1066 | add_cmd ("breakpoints", class_breakpoint, NULL, "Making program stop at certain points.", &cmdlist); |
1067 | add_cmd ("data", class_vars, NULL, "Examining data.", &cmdlist); |
1068 | add_cmd ("stack", class_stack, NULL, "Examining the stack.\n\ |
1069 | The stack is made up of stack frames. Gdb assigns numbers to stack frames\n\ |
1070 | counting from zero for the innermost (currently executing) frame.\n\n\ |
1071 | At any time gdb identifies one frame as the \"selected\" frame.\n\ |
1072 | Variable lookups are done with respect to the selected frame.\n\ |
1073 | When the program being debugged stops, gdb selects the innermost frame.\n\ |
1074 | The commands below can be used to select other frames by number or address.", |
1075 | &cmdlist); |
1076 | add_cmd ("running", class_run, NULL, "Running the program.", &cmdlist); |
1077 | |
1078 | |
1079 | |
1080 | add_com ("pwd", class_files, pwd_command, |
1081 | "Print working directory. This is used for your program as well."); |
1082 | c = add_cmd ("cd", class_files, cd_command, |
1083 | "Set working directory to DIR for debugger and program being debugged.\n\ |
1084 | The change does not take effect for the program being debugged\n\ |
1085 | until the next time it is started.", &cmdlist); |
1086 | set_cmd_completer (c, filename_completer); |
1087 | |
1088 | add_com ("echo", class_support, echo_command, |
1089 | "Print a constant string. Give string as argument.\n\ |
1090 | C escape sequences may be used in the argument.\n\ |
1091 | No newline is added at the end of the argument;\n\ |
1092 | use \"\\n\" if you want a newline to be printed.\n\ |
1093 | Since leading and trailing whitespace are ignored in command arguments,\n\ |
1094 | if you want to print some you must use \"\\\" before leading whitespace\n\ |
1095 | to be printed or after trailing whitespace."); |
1096 | add_com ("document", class_support, document_command, |
1097 | "Document a user-defined command.\n\ |
1098 | Give command name as argument. Give documentation on following lines.\n\ |
1099 | End with a line of just \"end\"."); |
1100 | add_com ("define", class_support, define_command, |
1101 | "Define a new command name. Command name is argument.\n\ |
1102 | Definition appears on following lines, one command per line.\n\ |
1103 | End with a line of just \"end\".\n\ |
1104 | Use the \"document\" command to give documentation for the new command.\n\ |
1105 | Commands defined in this way may have up to ten arguments."); |
1106 | |
1107 | c = add_cmd ("source", class_support, source_command, |
1108 | "Read commands from a file named FILE.\n\ |
1109 | Note that the file \"" GDBINIT_FILENAME "\" is read automatically in this way\n\ |
1110 | when gdb is started.", &cmdlist); |
1111 | set_cmd_completer (c, filename_completer); |
1112 | |
1113 | add_com ("quit", class_support, quit_command, "Exit gdb."); |
1114 | c = add_com ("help", class_support, help_command, "Print list of commands."); |
1115 | set_cmd_completer (c, command_completer); |
1116 | add_com_alias ("q", "quit", class_support, 1); |
1117 | add_com_alias ("h", "help", class_support, 1); |
1118 | |
1119 | c = add_set_cmd ("verbose", class_support, var_boolean, (char *) &info_verbose, |
1120 | "Set ", |
1121 | &setlist), |
1122 | deprecated_add_show_from_set (c, &showlist); |
1123 | set_cmd_sfunc (c, set_verbose); |
1124 | set_verbose (NULL, 0, c); |
1125 | |
1126 | add_prefix_cmd ("history", class_support, set_history, |
1127 | "Generic command for setting command history parameters.", |
1128 | &sethistlist, "set history ", 0, &setlist); |
1129 | add_prefix_cmd ("history", class_support, show_history, |
1130 | "Generic command for showing command history parameters.", |
1131 | &showhistlist, "show history ", 0, &showlist); |
1132 | |
1133 | deprecated_add_show_from_set |
1134 | (add_set_cmd ("expansion", no_class, var_boolean, (char *) &history_expansion_p, |
1135 | "Set history expansion on command input.\n\ |
1136 | Without an argument, history expansion is enabled.", &sethistlist), |
1137 | &showhistlist); |
1138 | |
1139 | add_prefix_cmd ("info", class_info, info_command, |
1140 | "Generic command for showing things about the program being debugged.", |
1141 | &infolist, "info ", 0, &cmdlist); |
1142 | add_com_alias ("i", "info", class_info, 1); |
1143 | |
1144 | add_com ("complete", class_obscure, complete_command, |
1145 | "List the completions for the rest of the line as a command."); |
1146 | |
1147 | add_prefix_cmd ("show", class_info, show_command, |
1148 | "Generic command for showing things about the debugger.", |
1149 | &showlist, "show ", 0, &cmdlist); |
1150 | |
1151 | add_info ("set", show_command, "Show all GDB settings."); |
1152 | |
1153 | add_cmd ("commands", no_class, show_commands, |
1154 | "Show the history of commands you typed.\n\ |
1155 | You can supply a command number to start with, or a `+' to start after\n\ |
1156 | the previous command number shown.", |
1157 | &showlist); |
1158 | |
1159 | add_cmd ("version", no_class, show_version, |
1160 | "Show what version of GDB this is.", &showlist); |
1161 | |
1162 | add_com ("while", class_support, while_command, |
1163 | "Execute nested commands WHILE the conditional expression is non zero.\n\ |
1164 | The conditional expression must follow the word `while' and must in turn be\n\ |
1165 | followed by a new line. The nested commands must be entered one per line,\n\ |
1166 | and should be terminated by the word `end'."); |
1167 | |
1168 | add_com ("if", class_support, if_command, |
1169 | "Execute nested commands once IF the conditional expression is non zero.\n\ |
1170 | The conditional expression must follow the word `if' and must in turn be\n\ |
1171 | followed by a new line. The nested commands must be entered one per line,\n\ |
1172 | and should be terminated by the word 'else' or `end'. If an else clause\n\ |
1173 | is used, the same rules apply to its nested commands as to the first ones."); |
1174 | |
1175 | |
1176 | |
1177 | deprecated_add_show_from_set |
1178 | (add_set_cmd ("remotebaud", no_class, |
1179 | var_zinteger, (char *) &baud_rate, |
1180 | "Set baud rate for remote serial I/O.\n\ |
1181 | This value is used to set the speed of the serial port when debugging\n\ |
1182 | using remote targets.", &setlist), |
1183 | &showlist); |
1184 | |
1185 | c = add_set_cmd ("remotedebug", no_class, var_zinteger, |
1186 | (char *) &remote_debug, |
1187 | "Set debugging of remote protocol.\n\ |
1188 | When enabled, each packet sent or received with the remote target\n\ |
1189 | is displayed.", &setlist); |
1190 | deprecate_cmd (c, "set debug remote"); |
1191 | deprecate_cmd (deprecated_add_show_from_set (c, &showlist), |
1192 | "show debug remote"); |
1193 | |
1194 | deprecated_add_show_from_set |
1195 | (add_set_cmd ("remote", no_class, var_zinteger, |
1196 | (char *) &remote_debug, |
1197 | "Set debugging of remote protocol.\n\ |
1198 | When enabled, each packet sent or received with the remote target\n\ |
1199 | is displayed.", &setdebuglist), |
1200 | &showdebuglist); |
1201 | |
1202 | deprecated_add_show_from_set |
1203 | (add_set_cmd ("remotetimeout", no_class, var_integer, (char *) &remote_timeout, |
1204 | "Set timeout limit to wait for target to respond.\n\ |
1205 | This value is used to set the time limit for gdb to wait for a response\n\ |
1206 | from the target.", &setlist), |
1207 | &showlist); |
1208 | |
1209 | add_prefix_cmd ("debug", no_class, set_debug, |
1210 | "Generic command for setting gdb debugging flags", |
1211 | &setdebuglist, "set debug ", 0, &setlist); |
1212 | |
1213 | add_prefix_cmd ("debug", no_class, show_debug, |
1214 | "Generic command for showing gdb debugging flags", |
1215 | &showdebuglist, "show debug ", 0, &showlist); |
1216 | |
1217 | c = add_com ("shell", class_support, shell_escape, |
1218 | "Execute the rest of the line as a shell command.\n\ |
1219 | With no arguments, run an inferior shell."); |
1220 | set_cmd_completer (c, filename_completer); |
1221 | |
1222 | c = add_com ("edit", class_files, edit_command, |
1223 | concat ("Edit specified file or function.\n\ |
1224 | With no argument, edits file containing most recent line listed.\n\ |
1225 | ", "\ |
1226 | Editing targets can be specified in these ways:\n\ |
1227 | FILE:LINENUM, to edit at that line in that file,\n\ |
1228 | FUNCTION, to edit at the beginning of that function,\n\ |
1229 | FILE:FUNCTION, to distinguish among like-named static functions.\n\ |
1230 | *ADDRESS, to edit at the line containing that address.\n\ |
1231 | Uses EDITOR environment variable contents as editor (or ex as default).",NULL)); |
1232 | |
1233 | c->completer = location_completer; |
1234 | |
1235 | add_com ("list", class_files, list_command, |
1236 | concat ("List specified function or line.\n\ |
1237 | With no argument, lists ten more lines after or around previous listing.\n\ |
1238 | \"list -\" lists the ten lines before a previous ten-line listing.\n\ |
1239 | One argument specifies a line, and ten lines are listed around that line.\n\ |
1240 | Two arguments with comma between specify starting and ending lines to list.\n\ |
1241 | ", "\ |
1242 | Lines can be specified in these ways:\n\ |
1243 | LINENUM, to list around that line in current file,\n\ |
1244 | FILE:LINENUM, to list around that line in that file,\n\ |
1245 | FUNCTION, to list around beginning of that function,\n\ |
1246 | FILE:FUNCTION, to distinguish among like-named static functions.\n\ |
1247 | *ADDRESS, to list around the line containing that address.\n\ |
1248 | With two args if one is empty it stands for ten lines away from the other arg.", NULL)); |
1249 | |
1250 | if (!xdb_commands) |
1251 | add_com_alias ("l", "list", class_files, 1); |
1252 | else |
1253 | add_com_alias ("v", "list", class_files, 1); |
1254 | |
1255 | if (dbx_commands) |
1256 | add_com_alias ("file", "list", class_files, 1); |
1257 | |
1258 | c = add_com ("disassemble", class_vars, disassemble_command, |
1259 | "Disassemble a specified section of memory.\n\ |
1260 | Default is the function surrounding the pc of the selected frame.\n\ |
1261 | With a single argument, the function surrounding that address is dumped.\n\ |
1262 | Two arguments are taken as a range of memory to dump."); |
1263 | set_cmd_completer (c, location_completer); |
1264 | if (xdb_commands) |
1265 | add_com_alias ("va", "disassemble", class_xdb, 0); |
1266 | |
1267 | |
1268 | |
1269 | |
1270 | |
1271 | |
1272 | |
1273 | if (xdb_commands) |
1274 | add_com_alias ("!", "shell", class_support, 0); |
1275 | |
1276 | c = add_com ("make", class_support, make_command, |
1277 | "Run the ``make'' program using the rest of the line as arguments."); |
1278 | set_cmd_completer (c, filename_completer); |
1279 | add_cmd ("user", no_class, show_user, |
1280 | "Show definitions of user defined commands.\n\ |
1281 | Argument is the name of the user defined command.\n\ |
1282 | With no argument, show definitions of all user defined commands.", &showlist); |
1283 | add_com ("apropos", class_support, apropos_command, "Search for commands matching a REGEXP"); |
1284 | |
1285 | deprecated_add_show_from_set |
1286 | (add_set_cmd ("max-user-call-depth", no_class, var_integer, |
1287 | (char *) &max_user_call_depth, |
1288 | "Set the max call depth for user-defined commands.\n", |
1289 | &setlist), |
1290 | &showlist); |
1291 | } |