1 /* Support for GDB maintenance commands.
2 Copyright 1992, 1993, 1994 Free Software Foundation, Inc.
3 Written by Fred Fish at Cygnus Support.
5 This file is part of GDB.
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.
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.
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. */
32 #include "expression.h" /* For language.h */
38 extern void _initialize_maint_cmds (void);
40 static void maintenance_command (char *, int);
42 static void maintenance_dump_me (char *, int);
44 static void maintenance_internal_error (char *args, int from_tty);
46 static void maintenance_demangle (char *, int);
48 static void maintenance_time_display (char *, int);
50 static void maintenance_space_display (char *, int);
52 static void maintenance_info_command (char *, int);
54 static void print_section_table (bfd *, asection *, PTR);
56 static void maintenance_info_sections (char *, int);
58 static void maintenance_print_command (char *, int);
60 static void maintenance_do_deprecate (char *, int);
62 /* Set this to the maximum number of seconds to wait instead of waiting forever
63 in target_wait(). If this timer times out, then it generates an error and
64 the command is aborted. This replaces most of the need for timeouts in the
65 GDB test suite, and makes it possible to distinguish between a hung target
66 and one with slow communications. */
74 maintenance_command -- access the maintenance subcommands
78 void maintenance_command (char *args, int from_tty)
85 maintenance_command (char *args, int from_tty)
87 printf_unfiltered ("\"maintenance\" must be followed by the name of a maintenance command.\n");
88 help_list (maintenancelist, "maintenance ", -1, gdb_stdout);
94 maintenance_dump_me (char *args, int from_tty)
96 if (query ("Should GDB dump core? "))
99 /* SIGQUIT by default is ignored, so use SIGABRT instead. */
100 signal (SIGABRT, SIG_DFL);
101 kill (getpid (), SIGABRT);
103 signal (SIGQUIT, SIG_DFL);
104 kill (getpid (), SIGQUIT);
110 /* Stimulate the internal error mechanism that GDB uses when an
111 internal problem is detected. Allows testing of the mechanism.
112 Also useful when the user wants to drop a core file but not exit
116 maintenance_internal_error (char *args, int from_tty)
118 internal_error ("internal maintenance");
121 /* Someday we should allow demangling for things other than just
122 explicit strings. For example, we might want to be able to specify
123 the address of a string in either GDB's process space or the
124 debuggee's process space, and have gdb fetch and demangle that
125 string. If we have a char* pointer "ptr" that points to a string,
126 we might want to be able to given just the name and have GDB
127 demangle and print what it points to, etc. (FIXME) */
130 maintenance_demangle (char *args, int from_tty)
134 if (args == NULL || *args == '\0')
136 printf_unfiltered ("\"maintenance demangle\" takes an argument to demangle.\n");
140 demangled = cplus_demangle (args, DMGL_ANSI | DMGL_PARAMS);
141 if (demangled != NULL)
143 printf_unfiltered ("%s\n", demangled);
148 printf_unfiltered ("Can't demangle \"%s\"\n", args);
154 maintenance_time_display (char *args, int from_tty)
156 extern int display_time;
158 if (args == NULL || *args == '\0')
159 printf_unfiltered ("\"maintenance time\" takes a numeric argument.\n");
161 display_time = strtol (args, NULL, 10);
165 maintenance_space_display (char *args, int from_tty)
167 extern int display_space;
169 if (args == NULL || *args == '\0')
170 printf_unfiltered ("\"maintenance space\" takes a numeric argument.\n");
172 display_space = strtol (args, NULL, 10);
175 /* The "maintenance info" command is defined as a prefix, with
176 allow_unknown 0. Therefore, its own definition is called only for
177 "maintenance info" with no args. */
181 maintenance_info_command (char *arg, int from_tty)
183 printf_unfiltered ("\"maintenance info\" must be followed by the name of an info command.\n");
184 help_list (maintenanceinfolist, "maintenance info ", -1, gdb_stdout);
188 print_section_table (bfd *abfd, asection *asect, PTR ignore)
192 flags = bfd_get_section_flags (abfd, asect);
194 /* FIXME-32x64: Need print_address_numeric with field width. */
195 printf_filtered (" %s",
196 local_hex_string_custom
197 ((unsigned long) bfd_section_vma (abfd, asect), "08l"));
198 printf_filtered ("->%s",
199 local_hex_string_custom
200 ((unsigned long) (bfd_section_vma (abfd, asect)
201 + bfd_section_size (abfd, asect)),
203 printf_filtered (" at %s",
204 local_hex_string_custom
205 ((unsigned long) asect->filepos, "08l"));
206 printf_filtered (": %s", bfd_section_name (abfd, asect));
208 if (flags & SEC_ALLOC)
209 printf_filtered (" ALLOC");
210 if (flags & SEC_LOAD)
211 printf_filtered (" LOAD");
212 if (flags & SEC_RELOC)
213 printf_filtered (" RELOC");
214 if (flags & SEC_READONLY)
215 printf_filtered (" READONLY");
216 if (flags & SEC_CODE)
217 printf_filtered (" CODE");
218 if (flags & SEC_DATA)
219 printf_filtered (" DATA");
221 printf_filtered (" ROM");
222 if (flags & SEC_CONSTRUCTOR)
223 printf_filtered (" CONSTRUCTOR");
224 if (flags & SEC_HAS_CONTENTS)
225 printf_filtered (" HAS_CONTENTS");
226 if (flags & SEC_NEVER_LOAD)
227 printf_filtered (" NEVER_LOAD");
228 if (flags & SEC_COFF_SHARED_LIBRARY)
229 printf_filtered (" COFF_SHARED_LIBRARY");
230 if (flags & SEC_IS_COMMON)
231 printf_filtered (" IS_COMMON");
233 printf_filtered ("\n");
238 maintenance_info_sections (char *arg, int from_tty)
242 printf_filtered ("Exec file:\n");
243 printf_filtered (" `%s', ", bfd_get_filename (exec_bfd));
245 printf_filtered ("file type %s.\n", bfd_get_target (exec_bfd));
246 bfd_map_over_sections (exec_bfd, print_section_table, 0);
251 printf_filtered ("Core file:\n");
252 printf_filtered (" `%s', ", bfd_get_filename (core_bfd));
254 printf_filtered ("file type %s.\n", bfd_get_target (core_bfd));
255 bfd_map_over_sections (core_bfd, print_section_table, 0);
261 maintenance_print_statistics (char *args, int from_tty)
263 print_objfile_statistics ();
264 print_symbol_bcache_statistics ();
268 maintenance_print_architecture (char *args, int from_tty)
271 gdbarch_dump (current_gdbarch, gdb_stdout);
274 struct ui_file *file = gdb_fopen (args, "w");
276 perror_with_name ("maintenance print architecture");
277 gdbarch_dump (current_gdbarch, file);
278 ui_file_delete (file);
282 /* The "maintenance print" command is defined as a prefix, with
283 allow_unknown 0. Therefore, its own definition is called only for
284 "maintenance print" with no args. */
288 maintenance_print_command (char *arg, int from_tty)
290 printf_unfiltered ("\"maintenance print\" must be followed by the name of a print command.\n");
291 help_list (maintenanceprintlist, "maintenance print ", -1, gdb_stdout);
294 /* The "maintenance translate-address" command converts a section and address
295 to a symbol. This can be called in two ways:
296 maintenance translate-address <secname> <addr>
297 or maintenance translate-address <addr>
301 maintenance_translate_address (char *arg, int from_tty)
306 struct minimal_symbol *sym;
307 struct objfile *objfile;
309 if (arg == NULL || *arg == 0)
310 error ("requires argument (address or section + address)");
316 { /* See if we have a valid section name */
317 while (*p && !isspace (*p)) /* Find end of section name */
319 if (*p == '\000') /* End of command? */
320 error ("Need to specify <section-name> and <address>");
323 p++; /* Skip whitespace */
325 ALL_OBJFILES (objfile)
327 sect = bfd_get_section_by_name (objfile->obfd, arg);
333 error ("Unknown section %s.", arg);
336 address = parse_and_eval_address (p);
339 sym = lookup_minimal_symbol_by_pc_section (address, sect);
341 sym = lookup_minimal_symbol_by_pc (address);
344 printf_filtered ("%s+%s\n",
345 SYMBOL_SOURCE_NAME (sym),
346 paddr_u (address - SYMBOL_VALUE_ADDRESS (sym)));
348 printf_filtered ("no symbol at %s:0x%s\n", sect->name, paddr (address));
350 printf_filtered ("no symbol at 0x%s\n", paddr (address));
356 /* When a comamnd is deprecated the user will be warned the first time
357 the command is used. If possible, a replacement will be
361 maintenance_deprecate (char *args, int from_tty)
363 if (args == NULL || *args == '\0')
365 printf_unfiltered ("\"maintenance deprecate\" takes an argument, \n\
366 the command you want to deprecate, and optionally the replacement command \n\
367 enclosed in quotes.\n");
370 maintenance_do_deprecate (args, 1);
376 maintenance_undeprecate (char *args, int from_tty)
378 if (args == NULL || *args == '\0')
380 printf_unfiltered ("\"maintenance undeprecate\" takes an argument, \n\
381 the command you want to undeprecate.\n");
384 maintenance_do_deprecate (args, 0);
388 /* You really shouldn't be using this. It is just for the testsuite.
389 Rather, you should use deprecate_cmd() when the command is created
390 in _initialize_blah().
392 This function deprecates a command and optionally assigns it a
396 maintenance_do_deprecate (char *text, int deprecate)
399 struct cmd_list_element *alias = NULL;
400 struct cmd_list_element *prefix_cmd = NULL;
401 struct cmd_list_element *cmd = NULL;
403 char *start_ptr = NULL;
404 char *end_ptr = NULL;
406 char *replacement = NULL;
411 if (!lookup_cmd_composition (text, &alias, &prefix_cmd, &cmd))
413 printf_filtered ("Can't find command '%s' to deprecate.\n", text);
419 /* look for a replacement command */
420 start_ptr = strchr (text, '\"');
421 if (start_ptr != NULL)
424 end_ptr = strrchr (start_ptr, '\"');
427 len = end_ptr - start_ptr;
428 start_ptr[len] = '\0';
429 replacement = xstrdup (start_ptr);
434 if (!start_ptr || !end_ptr)
438 /* If they used an alias, we only want to deprecate the alias.
440 Note the MALLOCED_REPLACEMENT test. If the command's replacement
441 string was allocated at compile time we don't want to free the
446 if (alias->flags & MALLOCED_REPLACEMENT)
447 free (alias->replacement);
450 alias->flags |= (DEPRECATED_WARN_USER | CMD_DEPRECATED);
452 alias->flags &= ~(DEPRECATED_WARN_USER | CMD_DEPRECATED);
453 alias->replacement = replacement;
454 alias->flags |= MALLOCED_REPLACEMENT;
459 if (cmd->flags & MALLOCED_REPLACEMENT)
460 free (cmd->replacement);
463 cmd->flags |= (DEPRECATED_WARN_USER | CMD_DEPRECATED);
465 cmd->flags &= ~(DEPRECATED_WARN_USER | CMD_DEPRECATED);
466 cmd->replacement = replacement;
467 cmd->flags |= MALLOCED_REPLACEMENT;
474 _initialize_maint_cmds (void)
476 add_prefix_cmd ("maintenance", class_maintenance, maintenance_command,
477 "Commands for use by GDB maintainers.\n\
478 Includes commands to dump specific internal GDB structures in\n\
479 a human readable form, to cause GDB to deliberately dump core,\n\
480 to test internal functions such as the C++ demangler, etc.",
481 &maintenancelist, "maintenance ", 0,
484 add_com_alias ("mt", "maintenance", class_maintenance, 1);
486 add_prefix_cmd ("info", class_maintenance, maintenance_info_command,
487 "Commands for showing internal info about the program being debugged.",
488 &maintenanceinfolist, "maintenance info ", 0,
490 add_alias_cmd ("i", "info", class_maintenance, 1, &maintenancelist);
492 add_cmd ("sections", class_maintenance, maintenance_info_sections,
493 "List the BFD sections of the exec and core files.",
494 &maintenanceinfolist);
496 add_prefix_cmd ("print", class_maintenance, maintenance_print_command,
497 "Maintenance command for printing GDB internal state.",
498 &maintenanceprintlist, "maintenance print ", 0,
502 add_cmd ("dump-me", class_maintenance, maintenance_dump_me,
503 "Get fatal error; make debugger dump its core.\n\
504 GDB sets it's handling of SIGQUIT back to SIG_DFL and then sends\n\
505 itself a SIGQUIT signal.",
509 add_cmd ("internal-error", class_maintenance, maintenance_internal_error,
510 "Give GDB an internal error.\n\
511 Cause GDB to behave as if an internal error was detected.",
514 add_cmd ("demangle", class_maintenance, maintenance_demangle,
515 "Demangle a C++ mangled name.\n\
516 Call internal GDB demangler routine to demangle a C++ link name\n\
517 and prints the result.",
520 add_cmd ("time", class_maintenance, maintenance_time_display,
521 "Set the display of time usage.\n\
522 If nonzero, will cause the execution time for each command to be\n\
523 displayed, following the command's output.",
526 add_cmd ("space", class_maintenance, maintenance_space_display,
527 "Set the display of space usage.\n\
528 If nonzero, will cause the execution space for each command to be\n\
529 displayed, following the command's output.",
532 add_cmd ("type", class_maintenance, maintenance_print_type,
533 "Print a type chain for a given symbol.\n\
534 For each node in a type chain, print the raw data for each member of\n\
535 the type structure, and the interpretation of the data.",
536 &maintenanceprintlist);
538 add_cmd ("symbols", class_maintenance, maintenance_print_symbols,
539 "Print dump of current symbol definitions.\n\
540 Entries in the full symbol table are dumped to file OUTFILE.\n\
541 If a SOURCE file is specified, dump only that file's symbols.",
542 &maintenanceprintlist);
544 add_cmd ("msymbols", class_maintenance, maintenance_print_msymbols,
545 "Print dump of current minimal symbol definitions.\n\
546 Entries in the minimal symbol table are dumped to file OUTFILE.\n\
547 If a SOURCE file is specified, dump only that file's minimal symbols.",
548 &maintenanceprintlist);
550 add_cmd ("psymbols", class_maintenance, maintenance_print_psymbols,
551 "Print dump of current partial symbol definitions.\n\
552 Entries in the partial symbol table are dumped to file OUTFILE.\n\
553 If a SOURCE file is specified, dump only that file's partial symbols.",
554 &maintenanceprintlist);
556 add_cmd ("objfiles", class_maintenance, maintenance_print_objfiles,
557 "Print dump of current object file definitions.",
558 &maintenanceprintlist);
560 add_cmd ("statistics", class_maintenance, maintenance_print_statistics,
561 "Print statistics about internal gdb state.",
562 &maintenanceprintlist);
564 add_cmd ("architecture", class_maintenance, maintenance_print_architecture,
565 "Print the internal architecture configuration.\
566 Takes an optional file parameter.",
567 &maintenanceprintlist);
569 add_cmd ("check-symtabs", class_maintenance, maintenance_check_symtabs,
570 "Check consistency of psymtabs and symtabs.",
573 add_cmd ("translate-address", class_maintenance, maintenance_translate_address,
574 "Translate a section name and address to a symbol.",
577 add_cmd ("deprecate", class_maintenance, maintenance_deprecate,
578 "Deprecate a command. Note that this is just in here so the \n\
579 testsuite can check the comamnd deprecator. You probably shouldn't use this,\n\
580 rather you should use the C function deprecate_cmd(). If you decide you \n\
581 want to use it: maintenance deprecate 'commandname' \"replacement\". The \n\
582 replacement is optional.", &maintenancelist);
584 add_cmd ("undeprecate", class_maintenance, maintenance_undeprecate,
585 "Undeprecate a command. Note that this is just in here so the \n\
586 testsuite can check the comamnd deprecator. You probably shouldn't use this,\n\
587 If you decide you want to use it: maintenance undeprecate 'commandname'",
591 add_set_cmd ("watchdog", class_maintenance, var_zinteger, (char *) &watchdog,
592 "Set watchdog timer.\n\
593 When non-zero, this timeout is used instead of waiting forever for a target to\n\
594 finish a low-level step or continue operation. If the specified amount of time\n\
595 passes without a response from the target, an error occurs.", &setlist),