Commit | Line | Data |
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c906108c SS |
1 | /* Support for GDB maintenance commands. |
2 | Copyright 1992, 1993, 1994 Free Software Foundation, Inc. | |
3 | Written by Fred Fish at Cygnus Support. | |
4 | ||
c5aa993b | 5 | This file is part of GDB. |
c906108c | 6 | |
c5aa993b JM |
7 | This program is free software; you can redistribute it and/or modify |
8 | it under the terms of the GNU General Public License as published by | |
9 | the Free Software Foundation; either version 2 of the License, or | |
10 | (at your option) any later version. | |
c906108c | 11 | |
c5aa993b JM |
12 | This program is distributed in the hope that it will be useful, |
13 | but WITHOUT ANY WARRANTY; without even the implied warranty of | |
14 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
15 | GNU General Public License for more details. | |
c906108c | 16 | |
c5aa993b JM |
17 | You should have received a copy of the GNU General Public License |
18 | along with this program; if not, write to the Free Software | |
19 | Foundation, Inc., 59 Temple Place - Suite 330, | |
20 | Boston, MA 02111-1307, USA. */ | |
c906108c SS |
21 | |
22 | ||
23 | #include "defs.h" | |
c906108c SS |
24 | #include <ctype.h> |
25 | #include <signal.h> | |
26 | #include "command.h" | |
27 | #include "gdbcmd.h" | |
28 | #include "symtab.h" | |
29 | #include "gdbtypes.h" | |
30 | #include "demangle.h" | |
31 | #include "gdbcore.h" | |
c5aa993b | 32 | #include "expression.h" /* For language.h */ |
c906108c SS |
33 | #include "language.h" |
34 | #include "symfile.h" | |
35 | #include "objfiles.h" | |
36 | #include "value.h" | |
37 | ||
38 | #ifdef HAVE_UNISTD_H | |
39 | #include <unistd.h> | |
40 | #endif | |
41 | ||
392a587b JM |
42 | extern void _initialize_maint_cmds PARAMS ((void)); |
43 | ||
c906108c SS |
44 | static void maintenance_command PARAMS ((char *, int)); |
45 | ||
46 | static void maintenance_dump_me PARAMS ((char *, int)); | |
47 | ||
7be570e7 JM |
48 | static void maintenance_internal_error PARAMS ((char *args, int from_tty)); |
49 | ||
c906108c SS |
50 | static void maintenance_demangle PARAMS ((char *, int)); |
51 | ||
52 | static void maintenance_time_display PARAMS ((char *, int)); | |
53 | ||
54 | static void maintenance_space_display PARAMS ((char *, int)); | |
55 | ||
56 | static void maintenance_info_command PARAMS ((char *, int)); | |
57 | ||
58 | static void print_section_table PARAMS ((bfd *, asection *, PTR)); | |
59 | ||
60 | static void maintenance_info_sections PARAMS ((char *, int)); | |
61 | ||
62 | static void maintenance_print_command PARAMS ((char *, int)); | |
63 | ||
64 | /* Set this to the maximum number of seconds to wait instead of waiting forever | |
65 | in target_wait(). If this timer times out, then it generates an error and | |
66 | the command is aborted. This replaces most of the need for timeouts in the | |
67 | GDB test suite, and makes it possible to distinguish between a hung target | |
68 | and one with slow communications. */ | |
69 | ||
70 | int watchdog = 0; | |
71 | ||
72 | /* | |
73 | ||
c5aa993b | 74 | LOCAL FUNCTION |
c906108c | 75 | |
c5aa993b | 76 | maintenance_command -- access the maintenance subcommands |
c906108c | 77 | |
c5aa993b | 78 | SYNOPSIS |
c906108c | 79 | |
c5aa993b | 80 | void maintenance_command (char *args, int from_tty) |
c906108c | 81 | |
c5aa993b | 82 | DESCRIPTION |
c906108c | 83 | |
c5aa993b | 84 | */ |
c906108c SS |
85 | |
86 | static void | |
87 | maintenance_command (args, from_tty) | |
88 | char *args; | |
89 | int from_tty; | |
90 | { | |
91 | printf_unfiltered ("\"maintenance\" must be followed by the name of a maintenance command.\n"); | |
92 | help_list (maintenancelist, "maintenance ", -1, gdb_stdout); | |
93 | } | |
94 | ||
95 | #ifndef _WIN32 | |
96 | /* ARGSUSED */ | |
97 | static void | |
98 | maintenance_dump_me (args, from_tty) | |
99 | char *args; | |
100 | int from_tty; | |
101 | { | |
102 | if (query ("Should GDB dump core? ")) | |
103 | { | |
7be570e7 JM |
104 | #ifdef __DJGPP__ |
105 | /* SIGQUIT by default is ignored, so use SIGABRT instead. */ | |
106 | signal (SIGABRT, SIG_DFL); | |
107 | kill (getpid (), SIGABRT); | |
108 | #else | |
c906108c SS |
109 | signal (SIGQUIT, SIG_DFL); |
110 | kill (getpid (), SIGQUIT); | |
7be570e7 | 111 | #endif |
c906108c SS |
112 | } |
113 | } | |
114 | #endif | |
115 | ||
7be570e7 JM |
116 | /* Stimulate the internal error mechanism that GDB uses when an |
117 | internal problem is detected. Allows testing of the mechanism. | |
118 | Also useful when the user wants to drop a core file but not exit | |
119 | GDB. */ | |
120 | ||
121 | static void | |
122 | maintenance_internal_error (char *args, int from_tty) | |
123 | { | |
124 | internal_error ("internal maintenance"); | |
125 | } | |
126 | ||
c906108c | 127 | /* Someday we should allow demangling for things other than just |
c5aa993b JM |
128 | explicit strings. For example, we might want to be able to |
129 | specify the address of a string in either GDB's process space | |
130 | or the debuggee's process space, and have gdb fetch and demangle | |
131 | that string. If we have a char* pointer "ptr" that points to | |
132 | a string, we might want to be able to given just the name and | |
133 | have GDB demangle and print what it points to, etc. (FIXME) */ | |
c906108c SS |
134 | |
135 | static void | |
136 | maintenance_demangle (args, from_tty) | |
137 | char *args; | |
138 | int from_tty; | |
139 | { | |
140 | char *demangled; | |
141 | ||
142 | if (args == NULL || *args == '\0') | |
143 | { | |
144 | printf_unfiltered ("\"maintenance demangle\" takes an argument to demangle.\n"); | |
145 | } | |
146 | else | |
147 | { | |
148 | demangled = cplus_demangle (args, DMGL_ANSI | DMGL_PARAMS); | |
149 | if (demangled != NULL) | |
150 | { | |
151 | printf_unfiltered ("%s\n", demangled); | |
152 | free (demangled); | |
153 | } | |
154 | else | |
155 | { | |
156 | printf_unfiltered ("Can't demangle \"%s\"\n", args); | |
157 | } | |
158 | } | |
159 | } | |
160 | ||
161 | static void | |
162 | maintenance_time_display (args, from_tty) | |
163 | char *args; | |
164 | int from_tty; | |
165 | { | |
166 | extern int display_time; | |
167 | ||
168 | if (args == NULL || *args == '\0') | |
169 | printf_unfiltered ("\"maintenance time\" takes a numeric argument.\n"); | |
170 | else | |
171 | display_time = strtol (args, NULL, 10); | |
172 | } | |
173 | ||
174 | static void | |
175 | maintenance_space_display (args, from_tty) | |
176 | char *args; | |
177 | int from_tty; | |
178 | { | |
179 | extern int display_space; | |
180 | ||
181 | if (args == NULL || *args == '\0') | |
182 | printf_unfiltered ("\"maintenance space\" takes a numeric argument.\n"); | |
183 | else | |
184 | display_space = strtol (args, NULL, 10); | |
185 | } | |
186 | ||
187 | /* The "maintenance info" command is defined as a prefix, with allow_unknown 0. | |
188 | Therefore, its own definition is called only for "maintenance info" with | |
189 | no args. */ | |
190 | ||
191 | /* ARGSUSED */ | |
192 | static void | |
193 | maintenance_info_command (arg, from_tty) | |
194 | char *arg; | |
195 | int from_tty; | |
196 | { | |
197 | printf_unfiltered ("\"maintenance info\" must be followed by the name of an info command.\n"); | |
198 | help_list (maintenanceinfolist, "maintenance info ", -1, gdb_stdout); | |
199 | } | |
200 | ||
201 | static void | |
202 | print_section_table (abfd, asect, ignore) | |
203 | bfd *abfd; | |
204 | asection *asect; | |
205 | PTR ignore; | |
206 | { | |
207 | flagword flags; | |
208 | ||
209 | flags = bfd_get_section_flags (abfd, asect); | |
210 | ||
211 | /* FIXME-32x64: Need print_address_numeric with field width. */ | |
212 | printf_filtered (" %s", | |
213 | local_hex_string_custom | |
c5aa993b | 214 | ((unsigned long) bfd_section_vma (abfd, asect), "08l")); |
c906108c SS |
215 | printf_filtered ("->%s", |
216 | local_hex_string_custom | |
c5aa993b JM |
217 | ((unsigned long) (bfd_section_vma (abfd, asect) |
218 | + bfd_section_size (abfd, asect)), | |
219 | "08l")); | |
c906108c SS |
220 | printf_filtered (" at %s", |
221 | local_hex_string_custom | |
c5aa993b | 222 | ((unsigned long) asect->filepos, "08l")); |
c906108c SS |
223 | printf_filtered (": %s", bfd_section_name (abfd, asect)); |
224 | ||
225 | if (flags & SEC_ALLOC) | |
226 | printf_filtered (" ALLOC"); | |
227 | if (flags & SEC_LOAD) | |
228 | printf_filtered (" LOAD"); | |
229 | if (flags & SEC_RELOC) | |
230 | printf_filtered (" RELOC"); | |
231 | if (flags & SEC_READONLY) | |
232 | printf_filtered (" READONLY"); | |
233 | if (flags & SEC_CODE) | |
234 | printf_filtered (" CODE"); | |
235 | if (flags & SEC_DATA) | |
236 | printf_filtered (" DATA"); | |
237 | if (flags & SEC_ROM) | |
238 | printf_filtered (" ROM"); | |
239 | if (flags & SEC_CONSTRUCTOR) | |
240 | printf_filtered (" CONSTRUCTOR"); | |
241 | if (flags & SEC_HAS_CONTENTS) | |
242 | printf_filtered (" HAS_CONTENTS"); | |
243 | if (flags & SEC_NEVER_LOAD) | |
244 | printf_filtered (" NEVER_LOAD"); | |
245 | if (flags & SEC_COFF_SHARED_LIBRARY) | |
246 | printf_filtered (" COFF_SHARED_LIBRARY"); | |
247 | if (flags & SEC_IS_COMMON) | |
248 | printf_filtered (" IS_COMMON"); | |
249 | ||
250 | printf_filtered ("\n"); | |
251 | } | |
252 | ||
253 | /* ARGSUSED */ | |
254 | static void | |
255 | maintenance_info_sections (arg, from_tty) | |
256 | char *arg; | |
257 | int from_tty; | |
258 | { | |
259 | if (exec_bfd) | |
260 | { | |
261 | printf_filtered ("Exec file:\n"); | |
c5aa993b | 262 | printf_filtered (" `%s', ", bfd_get_filename (exec_bfd)); |
c906108c | 263 | wrap_here (" "); |
c5aa993b JM |
264 | printf_filtered ("file type %s.\n", bfd_get_target (exec_bfd)); |
265 | bfd_map_over_sections (exec_bfd, print_section_table, 0); | |
c906108c SS |
266 | } |
267 | ||
268 | if (core_bfd) | |
269 | { | |
270 | printf_filtered ("Core file:\n"); | |
c5aa993b | 271 | printf_filtered (" `%s', ", bfd_get_filename (core_bfd)); |
c906108c | 272 | wrap_here (" "); |
c5aa993b JM |
273 | printf_filtered ("file type %s.\n", bfd_get_target (core_bfd)); |
274 | bfd_map_over_sections (core_bfd, print_section_table, 0); | |
c906108c SS |
275 | } |
276 | } | |
277 | ||
278 | /* ARGSUSED */ | |
279 | void | |
280 | maintenance_print_statistics (args, from_tty) | |
281 | char *args; | |
282 | int from_tty; | |
283 | { | |
284 | print_objfile_statistics (); | |
285 | print_symbol_bcache_statistics (); | |
286 | } | |
287 | ||
288 | /* The "maintenance print" command is defined as a prefix, with allow_unknown | |
289 | 0. Therefore, its own definition is called only for "maintenance print" | |
290 | with no args. */ | |
291 | ||
292 | /* ARGSUSED */ | |
293 | static void | |
294 | maintenance_print_command (arg, from_tty) | |
295 | char *arg; | |
296 | int from_tty; | |
297 | { | |
298 | printf_unfiltered ("\"maintenance print\" must be followed by the name of a print command.\n"); | |
299 | help_list (maintenanceprintlist, "maintenance print ", -1, gdb_stdout); | |
300 | } | |
301 | ||
302 | /* The "maintenance translate-address" command converts a section and address | |
303 | to a symbol. This can be called in two ways: | |
c5aa993b JM |
304 | maintenance translate-address <secname> <addr> |
305 | or maintenance translate-address <addr> | |
306 | */ | |
c906108c SS |
307 | |
308 | static void | |
309 | maintenance_translate_address (arg, from_tty) | |
310 | char *arg; | |
311 | int from_tty; | |
312 | { | |
313 | CORE_ADDR address; | |
314 | asection *sect; | |
315 | char *p; | |
316 | struct minimal_symbol *sym; | |
317 | struct objfile *objfile; | |
318 | ||
319 | if (arg == NULL || *arg == 0) | |
320 | error ("requires argument (address or section + address)"); | |
321 | ||
322 | sect = NULL; | |
323 | p = arg; | |
324 | ||
325 | if (!isdigit (*p)) | |
326 | { /* See if we have a valid section name */ | |
c5aa993b | 327 | while (*p && !isspace (*p)) /* Find end of section name */ |
c906108c SS |
328 | p++; |
329 | if (*p == '\000') /* End of command? */ | |
330 | error ("Need to specify <section-name> and <address>"); | |
331 | *p++ = '\000'; | |
c5aa993b JM |
332 | while (isspace (*p)) |
333 | p++; /* Skip whitespace */ | |
c906108c SS |
334 | |
335 | ALL_OBJFILES (objfile) | |
c5aa993b JM |
336 | { |
337 | sect = bfd_get_section_by_name (objfile->obfd, arg); | |
338 | if (sect != NULL) | |
339 | break; | |
340 | } | |
c906108c SS |
341 | |
342 | if (!sect) | |
343 | error ("Unknown section %s.", arg); | |
344 | } | |
345 | ||
346 | address = parse_and_eval_address (p); | |
347 | ||
348 | if (sect) | |
349 | sym = lookup_minimal_symbol_by_pc_section (address, sect); | |
350 | else | |
351 | sym = lookup_minimal_symbol_by_pc (address); | |
352 | ||
353 | if (sym) | |
c5aa993b JM |
354 | printf_filtered ("%s+%u\n", |
355 | SYMBOL_SOURCE_NAME (sym), | |
c906108c SS |
356 | address - SYMBOL_VALUE_ADDRESS (sym)); |
357 | else if (sect) | |
358 | printf_filtered ("no symbol at %s:0x%08x\n", sect->name, address); | |
359 | else | |
360 | printf_filtered ("no symbol at 0x%08x\n", address); | |
361 | ||
362 | return; | |
363 | } | |
364 | ||
c906108c SS |
365 | void |
366 | _initialize_maint_cmds () | |
367 | { | |
c906108c SS |
368 | add_prefix_cmd ("maintenance", class_maintenance, maintenance_command, |
369 | "Commands for use by GDB maintainers.\n\ | |
370 | Includes commands to dump specific internal GDB structures in\n\ | |
371 | a human readable form, to cause GDB to deliberately dump core,\n\ | |
372 | to test internal functions such as the C++ demangler, etc.", | |
373 | &maintenancelist, "maintenance ", 0, | |
374 | &cmdlist); | |
375 | ||
376 | add_com_alias ("mt", "maintenance", class_maintenance, 1); | |
377 | ||
378 | add_prefix_cmd ("info", class_maintenance, maintenance_info_command, | |
c5aa993b | 379 | "Commands for showing internal info about the program being debugged.", |
c906108c SS |
380 | &maintenanceinfolist, "maintenance info ", 0, |
381 | &maintenancelist); | |
382 | ||
383 | add_cmd ("sections", class_maintenance, maintenance_info_sections, | |
384 | "List the BFD sections of the exec and core files.", | |
385 | &maintenanceinfolist); | |
386 | ||
387 | add_prefix_cmd ("print", class_maintenance, maintenance_print_command, | |
388 | "Maintenance command for printing GDB internal state.", | |
389 | &maintenanceprintlist, "maintenance print ", 0, | |
390 | &maintenancelist); | |
391 | ||
392 | #ifndef _WIN32 | |
393 | add_cmd ("dump-me", class_maintenance, maintenance_dump_me, | |
394 | "Get fatal error; make debugger dump its core.\n\ | |
395 | GDB sets it's handling of SIGQUIT back to SIG_DFL and then sends\n\ | |
396 | itself a SIGQUIT signal.", | |
397 | &maintenancelist); | |
398 | #endif | |
399 | ||
7be570e7 JM |
400 | add_cmd ("internal-error", class_maintenance, maintenance_internal_error, |
401 | "Give GDB an internal error.\n\ | |
402 | Cause GDB to behave as if an internal error was detected.", | |
403 | &maintenancelist); | |
404 | ||
c906108c SS |
405 | add_cmd ("demangle", class_maintenance, maintenance_demangle, |
406 | "Demangle a C++ mangled name.\n\ | |
407 | Call internal GDB demangler routine to demangle a C++ link name\n\ | |
408 | and prints the result.", | |
409 | &maintenancelist); | |
410 | ||
411 | add_cmd ("time", class_maintenance, maintenance_time_display, | |
412 | "Set the display of time usage.\n\ | |
413 | If nonzero, will cause the execution time for each command to be\n\ | |
414 | displayed, following the command's output.", | |
415 | &maintenancelist); | |
416 | ||
417 | add_cmd ("space", class_maintenance, maintenance_space_display, | |
418 | "Set the display of space usage.\n\ | |
419 | If nonzero, will cause the execution space for each command to be\n\ | |
420 | displayed, following the command's output.", | |
421 | &maintenancelist); | |
422 | ||
423 | add_cmd ("type", class_maintenance, maintenance_print_type, | |
424 | "Print a type chain for a given symbol.\n\ | |
425 | For each node in a type chain, print the raw data for each member of\n\ | |
426 | the type structure, and the interpretation of the data.", | |
427 | &maintenanceprintlist); | |
428 | ||
429 | add_cmd ("symbols", class_maintenance, maintenance_print_symbols, | |
430 | "Print dump of current symbol definitions.\n\ | |
431 | Entries in the full symbol table are dumped to file OUTFILE.\n\ | |
432 | If a SOURCE file is specified, dump only that file's symbols.", | |
433 | &maintenanceprintlist); | |
434 | ||
435 | add_cmd ("msymbols", class_maintenance, maintenance_print_msymbols, | |
436 | "Print dump of current minimal symbol definitions.\n\ | |
437 | Entries in the minimal symbol table are dumped to file OUTFILE.\n\ | |
438 | If a SOURCE file is specified, dump only that file's minimal symbols.", | |
439 | &maintenanceprintlist); | |
440 | ||
441 | add_cmd ("psymbols", class_maintenance, maintenance_print_psymbols, | |
442 | "Print dump of current partial symbol definitions.\n\ | |
443 | Entries in the partial symbol table are dumped to file OUTFILE.\n\ | |
444 | If a SOURCE file is specified, dump only that file's partial symbols.", | |
445 | &maintenanceprintlist); | |
446 | ||
447 | add_cmd ("objfiles", class_maintenance, maintenance_print_objfiles, | |
448 | "Print dump of current object file definitions.", | |
449 | &maintenanceprintlist); | |
450 | ||
451 | add_cmd ("statistics", class_maintenance, maintenance_print_statistics, | |
452 | "Print statistics about internal gdb state.", | |
453 | &maintenanceprintlist); | |
454 | ||
455 | add_cmd ("check-symtabs", class_maintenance, maintenance_check_symtabs, | |
456 | "Check consistency of psymtabs and symtabs.", | |
457 | &maintenancelist); | |
458 | ||
459 | add_cmd ("translate-address", class_maintenance, maintenance_translate_address, | |
460 | "Translate a section name and address to a symbol.", | |
461 | &maintenancelist); | |
462 | ||
463 | add_show_from_set ( | |
c5aa993b JM |
464 | add_set_cmd ("watchdog", class_maintenance, var_zinteger, (char *) &watchdog, |
465 | "Set watchdog timer.\n\ | |
c906108c SS |
466 | When non-zero, this timeout is used instead of waiting forever for a target to\n\ |
467 | finish a low-level step or continue operation. If the specified amount of time\n\ | |
468 | passes without a response from the target, an error occurs.", &setlist), | |
c5aa993b | 469 | &showlist); |
c906108c | 470 | } |