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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 | ||
392a587b JM |
38 | extern void _initialize_maint_cmds PARAMS ((void)); |
39 | ||
c906108c SS |
40 | static void maintenance_command PARAMS ((char *, int)); |
41 | ||
42 | static void maintenance_dump_me PARAMS ((char *, int)); | |
43 | ||
7be570e7 JM |
44 | static void maintenance_internal_error PARAMS ((char *args, int from_tty)); |
45 | ||
c906108c SS |
46 | static void maintenance_demangle PARAMS ((char *, int)); |
47 | ||
48 | static void maintenance_time_display PARAMS ((char *, int)); | |
49 | ||
50 | static void maintenance_space_display PARAMS ((char *, int)); | |
51 | ||
52 | static void maintenance_info_command PARAMS ((char *, int)); | |
53 | ||
54 | static void print_section_table PARAMS ((bfd *, asection *, PTR)); | |
55 | ||
56 | static void maintenance_info_sections PARAMS ((char *, int)); | |
57 | ||
58 | static void maintenance_print_command PARAMS ((char *, int)); | |
59 | ||
60 | /* Set this to the maximum number of seconds to wait instead of waiting forever | |
61 | in target_wait(). If this timer times out, then it generates an error and | |
62 | the command is aborted. This replaces most of the need for timeouts in the | |
63 | GDB test suite, and makes it possible to distinguish between a hung target | |
64 | and one with slow communications. */ | |
65 | ||
66 | int watchdog = 0; | |
67 | ||
68 | /* | |
69 | ||
c5aa993b | 70 | LOCAL FUNCTION |
c906108c | 71 | |
c5aa993b | 72 | maintenance_command -- access the maintenance subcommands |
c906108c | 73 | |
c5aa993b | 74 | SYNOPSIS |
c906108c | 75 | |
c5aa993b | 76 | void maintenance_command (char *args, int from_tty) |
c906108c | 77 | |
c5aa993b | 78 | DESCRIPTION |
c906108c | 79 | |
c5aa993b | 80 | */ |
c906108c SS |
81 | |
82 | static void | |
83 | maintenance_command (args, from_tty) | |
84 | char *args; | |
85 | int from_tty; | |
86 | { | |
87 | printf_unfiltered ("\"maintenance\" must be followed by the name of a maintenance command.\n"); | |
88 | help_list (maintenancelist, "maintenance ", -1, gdb_stdout); | |
89 | } | |
90 | ||
91 | #ifndef _WIN32 | |
92 | /* ARGSUSED */ | |
93 | static void | |
94 | maintenance_dump_me (args, from_tty) | |
95 | char *args; | |
96 | int from_tty; | |
97 | { | |
98 | if (query ("Should GDB dump core? ")) | |
99 | { | |
7be570e7 JM |
100 | #ifdef __DJGPP__ |
101 | /* SIGQUIT by default is ignored, so use SIGABRT instead. */ | |
102 | signal (SIGABRT, SIG_DFL); | |
103 | kill (getpid (), SIGABRT); | |
104 | #else | |
c906108c SS |
105 | signal (SIGQUIT, SIG_DFL); |
106 | kill (getpid (), SIGQUIT); | |
7be570e7 | 107 | #endif |
c906108c SS |
108 | } |
109 | } | |
110 | #endif | |
111 | ||
7be570e7 JM |
112 | /* Stimulate the internal error mechanism that GDB uses when an |
113 | internal problem is detected. Allows testing of the mechanism. | |
114 | Also useful when the user wants to drop a core file but not exit | |
115 | GDB. */ | |
116 | ||
117 | static void | |
118 | maintenance_internal_error (char *args, int from_tty) | |
119 | { | |
120 | internal_error ("internal maintenance"); | |
121 | } | |
122 | ||
c906108c | 123 | /* Someday we should allow demangling for things other than just |
c5aa993b JM |
124 | explicit strings. For example, we might want to be able to |
125 | specify the address of a string in either GDB's process space | |
126 | or the debuggee's process space, and have gdb fetch and demangle | |
127 | that string. If we have a char* pointer "ptr" that points to | |
128 | a string, we might want to be able to given just the name and | |
129 | have GDB demangle and print what it points to, etc. (FIXME) */ | |
c906108c SS |
130 | |
131 | static void | |
132 | maintenance_demangle (args, from_tty) | |
133 | char *args; | |
134 | int from_tty; | |
135 | { | |
136 | char *demangled; | |
137 | ||
138 | if (args == NULL || *args == '\0') | |
139 | { | |
140 | printf_unfiltered ("\"maintenance demangle\" takes an argument to demangle.\n"); | |
141 | } | |
142 | else | |
143 | { | |
144 | demangled = cplus_demangle (args, DMGL_ANSI | DMGL_PARAMS); | |
145 | if (demangled != NULL) | |
146 | { | |
147 | printf_unfiltered ("%s\n", demangled); | |
148 | free (demangled); | |
149 | } | |
150 | else | |
151 | { | |
152 | printf_unfiltered ("Can't demangle \"%s\"\n", args); | |
153 | } | |
154 | } | |
155 | } | |
156 | ||
157 | static void | |
158 | maintenance_time_display (args, from_tty) | |
159 | char *args; | |
160 | int from_tty; | |
161 | { | |
162 | extern int display_time; | |
163 | ||
164 | if (args == NULL || *args == '\0') | |
165 | printf_unfiltered ("\"maintenance time\" takes a numeric argument.\n"); | |
166 | else | |
167 | display_time = strtol (args, NULL, 10); | |
168 | } | |
169 | ||
170 | static void | |
171 | maintenance_space_display (args, from_tty) | |
172 | char *args; | |
173 | int from_tty; | |
174 | { | |
175 | extern int display_space; | |
176 | ||
177 | if (args == NULL || *args == '\0') | |
178 | printf_unfiltered ("\"maintenance space\" takes a numeric argument.\n"); | |
179 | else | |
180 | display_space = strtol (args, NULL, 10); | |
181 | } | |
182 | ||
183 | /* The "maintenance info" command is defined as a prefix, with allow_unknown 0. | |
184 | Therefore, its own definition is called only for "maintenance info" with | |
185 | no args. */ | |
186 | ||
187 | /* ARGSUSED */ | |
188 | static void | |
189 | maintenance_info_command (arg, from_tty) | |
190 | char *arg; | |
191 | int from_tty; | |
192 | { | |
193 | printf_unfiltered ("\"maintenance info\" must be followed by the name of an info command.\n"); | |
194 | help_list (maintenanceinfolist, "maintenance info ", -1, gdb_stdout); | |
195 | } | |
196 | ||
197 | static void | |
198 | print_section_table (abfd, asect, ignore) | |
199 | bfd *abfd; | |
200 | asection *asect; | |
201 | PTR ignore; | |
202 | { | |
203 | flagword flags; | |
204 | ||
205 | flags = bfd_get_section_flags (abfd, asect); | |
206 | ||
207 | /* FIXME-32x64: Need print_address_numeric with field width. */ | |
208 | printf_filtered (" %s", | |
209 | local_hex_string_custom | |
c5aa993b | 210 | ((unsigned long) bfd_section_vma (abfd, asect), "08l")); |
c906108c SS |
211 | printf_filtered ("->%s", |
212 | local_hex_string_custom | |
c5aa993b JM |
213 | ((unsigned long) (bfd_section_vma (abfd, asect) |
214 | + bfd_section_size (abfd, asect)), | |
215 | "08l")); | |
c906108c SS |
216 | printf_filtered (" at %s", |
217 | local_hex_string_custom | |
c5aa993b | 218 | ((unsigned long) asect->filepos, "08l")); |
c906108c SS |
219 | printf_filtered (": %s", bfd_section_name (abfd, asect)); |
220 | ||
221 | if (flags & SEC_ALLOC) | |
222 | printf_filtered (" ALLOC"); | |
223 | if (flags & SEC_LOAD) | |
224 | printf_filtered (" LOAD"); | |
225 | if (flags & SEC_RELOC) | |
226 | printf_filtered (" RELOC"); | |
227 | if (flags & SEC_READONLY) | |
228 | printf_filtered (" READONLY"); | |
229 | if (flags & SEC_CODE) | |
230 | printf_filtered (" CODE"); | |
231 | if (flags & SEC_DATA) | |
232 | printf_filtered (" DATA"); | |
233 | if (flags & SEC_ROM) | |
234 | printf_filtered (" ROM"); | |
235 | if (flags & SEC_CONSTRUCTOR) | |
236 | printf_filtered (" CONSTRUCTOR"); | |
237 | if (flags & SEC_HAS_CONTENTS) | |
238 | printf_filtered (" HAS_CONTENTS"); | |
239 | if (flags & SEC_NEVER_LOAD) | |
240 | printf_filtered (" NEVER_LOAD"); | |
241 | if (flags & SEC_COFF_SHARED_LIBRARY) | |
242 | printf_filtered (" COFF_SHARED_LIBRARY"); | |
243 | if (flags & SEC_IS_COMMON) | |
244 | printf_filtered (" IS_COMMON"); | |
245 | ||
246 | printf_filtered ("\n"); | |
247 | } | |
248 | ||
249 | /* ARGSUSED */ | |
250 | static void | |
251 | maintenance_info_sections (arg, from_tty) | |
252 | char *arg; | |
253 | int from_tty; | |
254 | { | |
255 | if (exec_bfd) | |
256 | { | |
257 | printf_filtered ("Exec file:\n"); | |
c5aa993b | 258 | printf_filtered (" `%s', ", bfd_get_filename (exec_bfd)); |
c906108c | 259 | wrap_here (" "); |
c5aa993b JM |
260 | printf_filtered ("file type %s.\n", bfd_get_target (exec_bfd)); |
261 | bfd_map_over_sections (exec_bfd, print_section_table, 0); | |
c906108c SS |
262 | } |
263 | ||
264 | if (core_bfd) | |
265 | { | |
266 | printf_filtered ("Core file:\n"); | |
c5aa993b | 267 | printf_filtered (" `%s', ", bfd_get_filename (core_bfd)); |
c906108c | 268 | wrap_here (" "); |
c5aa993b JM |
269 | printf_filtered ("file type %s.\n", bfd_get_target (core_bfd)); |
270 | bfd_map_over_sections (core_bfd, print_section_table, 0); | |
c906108c SS |
271 | } |
272 | } | |
273 | ||
274 | /* ARGSUSED */ | |
275 | void | |
276 | maintenance_print_statistics (args, from_tty) | |
277 | char *args; | |
278 | int from_tty; | |
279 | { | |
280 | print_objfile_statistics (); | |
281 | print_symbol_bcache_statistics (); | |
282 | } | |
283 | ||
284 | /* The "maintenance print" command is defined as a prefix, with allow_unknown | |
285 | 0. Therefore, its own definition is called only for "maintenance print" | |
286 | with no args. */ | |
287 | ||
288 | /* ARGSUSED */ | |
289 | static void | |
290 | maintenance_print_command (arg, from_tty) | |
291 | char *arg; | |
292 | int from_tty; | |
293 | { | |
294 | printf_unfiltered ("\"maintenance print\" must be followed by the name of a print command.\n"); | |
295 | help_list (maintenanceprintlist, "maintenance print ", -1, gdb_stdout); | |
296 | } | |
297 | ||
298 | /* The "maintenance translate-address" command converts a section and address | |
299 | to a symbol. This can be called in two ways: | |
c5aa993b JM |
300 | maintenance translate-address <secname> <addr> |
301 | or maintenance translate-address <addr> | |
302 | */ | |
c906108c SS |
303 | |
304 | static void | |
305 | maintenance_translate_address (arg, from_tty) | |
306 | char *arg; | |
307 | int from_tty; | |
308 | { | |
309 | CORE_ADDR address; | |
310 | asection *sect; | |
311 | char *p; | |
312 | struct minimal_symbol *sym; | |
313 | struct objfile *objfile; | |
314 | ||
315 | if (arg == NULL || *arg == 0) | |
316 | error ("requires argument (address or section + address)"); | |
317 | ||
318 | sect = NULL; | |
319 | p = arg; | |
320 | ||
321 | if (!isdigit (*p)) | |
322 | { /* See if we have a valid section name */ | |
c5aa993b | 323 | while (*p && !isspace (*p)) /* Find end of section name */ |
c906108c SS |
324 | p++; |
325 | if (*p == '\000') /* End of command? */ | |
326 | error ("Need to specify <section-name> and <address>"); | |
327 | *p++ = '\000'; | |
c5aa993b JM |
328 | while (isspace (*p)) |
329 | p++; /* Skip whitespace */ | |
c906108c SS |
330 | |
331 | ALL_OBJFILES (objfile) | |
c5aa993b JM |
332 | { |
333 | sect = bfd_get_section_by_name (objfile->obfd, arg); | |
334 | if (sect != NULL) | |
335 | break; | |
336 | } | |
c906108c SS |
337 | |
338 | if (!sect) | |
339 | error ("Unknown section %s.", arg); | |
340 | } | |
341 | ||
342 | address = parse_and_eval_address (p); | |
343 | ||
344 | if (sect) | |
345 | sym = lookup_minimal_symbol_by_pc_section (address, sect); | |
346 | else | |
347 | sym = lookup_minimal_symbol_by_pc (address); | |
348 | ||
349 | if (sym) | |
d4f3574e | 350 | printf_filtered ("%s+%s\n", |
c5aa993b | 351 | SYMBOL_SOURCE_NAME (sym), |
d4f3574e | 352 | paddr_u (address - SYMBOL_VALUE_ADDRESS (sym))); |
c906108c | 353 | else if (sect) |
d4f3574e | 354 | printf_filtered ("no symbol at %s:0x%s\n", sect->name, paddr (address)); |
c906108c | 355 | else |
d4f3574e | 356 | printf_filtered ("no symbol at 0x%s\n", paddr (address)); |
c906108c SS |
357 | |
358 | return; | |
359 | } | |
360 | ||
c906108c SS |
361 | void |
362 | _initialize_maint_cmds () | |
363 | { | |
c906108c SS |
364 | add_prefix_cmd ("maintenance", class_maintenance, maintenance_command, |
365 | "Commands for use by GDB maintainers.\n\ | |
366 | Includes commands to dump specific internal GDB structures in\n\ | |
367 | a human readable form, to cause GDB to deliberately dump core,\n\ | |
368 | to test internal functions such as the C++ demangler, etc.", | |
369 | &maintenancelist, "maintenance ", 0, | |
370 | &cmdlist); | |
371 | ||
372 | add_com_alias ("mt", "maintenance", class_maintenance, 1); | |
373 | ||
374 | add_prefix_cmd ("info", class_maintenance, maintenance_info_command, | |
c5aa993b | 375 | "Commands for showing internal info about the program being debugged.", |
c906108c SS |
376 | &maintenanceinfolist, "maintenance info ", 0, |
377 | &maintenancelist); | |
378 | ||
379 | add_cmd ("sections", class_maintenance, maintenance_info_sections, | |
380 | "List the BFD sections of the exec and core files.", | |
381 | &maintenanceinfolist); | |
382 | ||
383 | add_prefix_cmd ("print", class_maintenance, maintenance_print_command, | |
384 | "Maintenance command for printing GDB internal state.", | |
385 | &maintenanceprintlist, "maintenance print ", 0, | |
386 | &maintenancelist); | |
387 | ||
388 | #ifndef _WIN32 | |
389 | add_cmd ("dump-me", class_maintenance, maintenance_dump_me, | |
390 | "Get fatal error; make debugger dump its core.\n\ | |
391 | GDB sets it's handling of SIGQUIT back to SIG_DFL and then sends\n\ | |
392 | itself a SIGQUIT signal.", | |
393 | &maintenancelist); | |
394 | #endif | |
395 | ||
7be570e7 JM |
396 | add_cmd ("internal-error", class_maintenance, maintenance_internal_error, |
397 | "Give GDB an internal error.\n\ | |
398 | Cause GDB to behave as if an internal error was detected.", | |
399 | &maintenancelist); | |
400 | ||
c906108c SS |
401 | add_cmd ("demangle", class_maintenance, maintenance_demangle, |
402 | "Demangle a C++ mangled name.\n\ | |
403 | Call internal GDB demangler routine to demangle a C++ link name\n\ | |
404 | and prints the result.", | |
405 | &maintenancelist); | |
406 | ||
407 | add_cmd ("time", class_maintenance, maintenance_time_display, | |
408 | "Set the display of time usage.\n\ | |
409 | If nonzero, will cause the execution time for each command to be\n\ | |
410 | displayed, following the command's output.", | |
411 | &maintenancelist); | |
412 | ||
413 | add_cmd ("space", class_maintenance, maintenance_space_display, | |
414 | "Set the display of space usage.\n\ | |
415 | If nonzero, will cause the execution space for each command to be\n\ | |
416 | displayed, following the command's output.", | |
417 | &maintenancelist); | |
418 | ||
419 | add_cmd ("type", class_maintenance, maintenance_print_type, | |
420 | "Print a type chain for a given symbol.\n\ | |
421 | For each node in a type chain, print the raw data for each member of\n\ | |
422 | the type structure, and the interpretation of the data.", | |
423 | &maintenanceprintlist); | |
424 | ||
425 | add_cmd ("symbols", class_maintenance, maintenance_print_symbols, | |
426 | "Print dump of current symbol definitions.\n\ | |
427 | Entries in the full symbol table are dumped to file OUTFILE.\n\ | |
428 | If a SOURCE file is specified, dump only that file's symbols.", | |
429 | &maintenanceprintlist); | |
430 | ||
431 | add_cmd ("msymbols", class_maintenance, maintenance_print_msymbols, | |
432 | "Print dump of current minimal symbol definitions.\n\ | |
433 | Entries in the minimal symbol table are dumped to file OUTFILE.\n\ | |
434 | If a SOURCE file is specified, dump only that file's minimal symbols.", | |
435 | &maintenanceprintlist); | |
436 | ||
437 | add_cmd ("psymbols", class_maintenance, maintenance_print_psymbols, | |
438 | "Print dump of current partial symbol definitions.\n\ | |
439 | Entries in the partial symbol table are dumped to file OUTFILE.\n\ | |
440 | If a SOURCE file is specified, dump only that file's partial symbols.", | |
441 | &maintenanceprintlist); | |
442 | ||
443 | add_cmd ("objfiles", class_maintenance, maintenance_print_objfiles, | |
444 | "Print dump of current object file definitions.", | |
445 | &maintenanceprintlist); | |
446 | ||
447 | add_cmd ("statistics", class_maintenance, maintenance_print_statistics, | |
448 | "Print statistics about internal gdb state.", | |
449 | &maintenanceprintlist); | |
450 | ||
451 | add_cmd ("check-symtabs", class_maintenance, maintenance_check_symtabs, | |
452 | "Check consistency of psymtabs and symtabs.", | |
453 | &maintenancelist); | |
454 | ||
455 | add_cmd ("translate-address", class_maintenance, maintenance_translate_address, | |
456 | "Translate a section name and address to a symbol.", | |
457 | &maintenancelist); | |
458 | ||
459 | add_show_from_set ( | |
c5aa993b JM |
460 | add_set_cmd ("watchdog", class_maintenance, var_zinteger, (char *) &watchdog, |
461 | "Set watchdog timer.\n\ | |
c906108c SS |
462 | When non-zero, this timeout is used instead of waiting forever for a target to\n\ |
463 | finish a low-level step or continue operation. If the specified amount of time\n\ | |
464 | passes without a response from the target, an error occurs.", &setlist), | |
c5aa993b | 465 | &showlist); |
c906108c | 466 | } |