1 /* Support for GDB maintenance commands.
2 Copyright 1992, 1993, 1994, 1995, 1996, 1997, 1999, 2000, 2001
3 Free Software Foundation, Inc.
4 Written by Fred Fish at Cygnus Support.
6 This file is part of GDB.
8 This program is free software; you can redistribute it and/or modify
9 it under the terms of the GNU General Public License as published by
10 the Free Software Foundation; either version 2 of the License, or
11 (at your option) any later version.
13 This program is distributed in the hope that it will be useful,
14 but WITHOUT ANY WARRANTY; without even the implied warranty of
15 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
16 GNU General Public License for more details.
18 You should have received a copy of the GNU General Public License
19 along with this program; if not, write to the Free Software
20 Foundation, Inc., 59 Temple Place - Suite 330,
21 Boston, MA 02111-1307, USA. */
33 #include "expression.h" /* For language.h */
39 extern void _initialize_maint_cmds (void);
41 static void maintenance_command (char *, int);
43 static void maintenance_dump_me (char *, int);
45 static void maintenance_internal_error (char *args, int from_tty);
47 static void maintenance_demangle (char *, int);
49 static void maintenance_time_display (char *, int);
51 static void maintenance_space_display (char *, int);
53 static void maintenance_info_command (char *, int);
55 static void print_section_table (bfd *, asection *, PTR);
57 static void maintenance_info_sections (char *, int);
59 static void maintenance_print_command (char *, int);
61 static void maintenance_do_deprecate (char *, int);
63 /* Set this to the maximum number of seconds to wait instead of waiting forever
64 in target_wait(). If this timer times out, then it generates an error and
65 the command is aborted. This replaces most of the need for timeouts in the
66 GDB test suite, and makes it possible to distinguish between a hung target
67 and one with slow communications. */
75 maintenance_command -- access the maintenance subcommands
79 void maintenance_command (char *args, int from_tty)
86 maintenance_command (char *args, int from_tty)
88 printf_unfiltered ("\"maintenance\" must be followed by the name of a maintenance command.\n");
89 help_list (maintenancelist, "maintenance ", -1, gdb_stdout);
95 maintenance_dump_me (char *args, int from_tty)
97 if (query ("Should GDB dump core? "))
100 /* SIGQUIT by default is ignored, so use SIGABRT instead. */
101 signal (SIGABRT, SIG_DFL);
102 kill (getpid (), SIGABRT);
104 signal (SIGQUIT, SIG_DFL);
105 kill (getpid (), SIGQUIT);
111 /* Stimulate the internal error mechanism that GDB uses when an
112 internal problem is detected. Allows testing of the mechanism.
113 Also useful when the user wants to drop a core file but not exit
117 maintenance_internal_error (char *args, int from_tty)
119 internal_error (__FILE__, __LINE__,
120 "internal maintenance");
123 /* Someday we should allow demangling for things other than just
124 explicit strings. For example, we might want to be able to specify
125 the address of a string in either GDB's process space or the
126 debuggee's process space, and have gdb fetch and demangle that
127 string. If we have a char* pointer "ptr" that points to a string,
128 we might want to be able to given just the name and have GDB
129 demangle and print what it points to, etc. (FIXME) */
132 maintenance_demangle (char *args, int from_tty)
136 if (args == NULL || *args == '\0')
138 printf_unfiltered ("\"maintenance demangle\" takes an argument to demangle.\n");
142 demangled = cplus_demangle (args, DMGL_ANSI | DMGL_PARAMS);
143 if (demangled != NULL)
145 printf_unfiltered ("%s\n", demangled);
150 printf_unfiltered ("Can't demangle \"%s\"\n", args);
156 maintenance_time_display (char *args, int from_tty)
158 extern int display_time;
160 if (args == NULL || *args == '\0')
161 printf_unfiltered ("\"maintenance time\" takes a numeric argument.\n");
163 display_time = strtol (args, NULL, 10);
167 maintenance_space_display (char *args, int from_tty)
169 extern int display_space;
171 if (args == NULL || *args == '\0')
172 printf_unfiltered ("\"maintenance space\" takes a numeric argument.\n");
174 display_space = strtol (args, NULL, 10);
177 /* The "maintenance info" command is defined as a prefix, with
178 allow_unknown 0. Therefore, its own definition is called only for
179 "maintenance info" with no args. */
183 maintenance_info_command (char *arg, int from_tty)
185 printf_unfiltered ("\"maintenance info\" must be followed by the name of an info command.\n");
186 help_list (maintenanceinfolist, "maintenance info ", -1, gdb_stdout);
190 print_section_table (bfd *abfd, asection *asect, PTR ignore)
194 flags = bfd_get_section_flags (abfd, asect);
196 /* FIXME-32x64: Need print_address_numeric with field width. */
197 printf_filtered (" %s",
198 local_hex_string_custom
199 ((unsigned long) bfd_section_vma (abfd, asect), "08l"));
200 printf_filtered ("->%s",
201 local_hex_string_custom
202 ((unsigned long) (bfd_section_vma (abfd, asect)
203 + bfd_section_size (abfd, asect)),
205 printf_filtered (" at %s",
206 local_hex_string_custom
207 ((unsigned long) asect->filepos, "08l"));
208 printf_filtered (": %s", bfd_section_name (abfd, asect));
210 if (flags & SEC_ALLOC)
211 printf_filtered (" ALLOC");
212 if (flags & SEC_LOAD)
213 printf_filtered (" LOAD");
214 if (flags & SEC_RELOC)
215 printf_filtered (" RELOC");
216 if (flags & SEC_READONLY)
217 printf_filtered (" READONLY");
218 if (flags & SEC_CODE)
219 printf_filtered (" CODE");
220 if (flags & SEC_DATA)
221 printf_filtered (" DATA");
223 printf_filtered (" ROM");
224 if (flags & SEC_CONSTRUCTOR)
225 printf_filtered (" CONSTRUCTOR");
226 if (flags & SEC_HAS_CONTENTS)
227 printf_filtered (" HAS_CONTENTS");
228 if (flags & SEC_NEVER_LOAD)
229 printf_filtered (" NEVER_LOAD");
230 if (flags & SEC_COFF_SHARED_LIBRARY)
231 printf_filtered (" COFF_SHARED_LIBRARY");
232 if (flags & SEC_IS_COMMON)
233 printf_filtered (" IS_COMMON");
235 printf_filtered ("\n");
240 maintenance_info_sections (char *arg, int from_tty)
244 printf_filtered ("Exec file:\n");
245 printf_filtered (" `%s', ", bfd_get_filename (exec_bfd));
247 printf_filtered ("file type %s.\n", bfd_get_target (exec_bfd));
248 bfd_map_over_sections (exec_bfd, print_section_table, 0);
253 printf_filtered ("Core file:\n");
254 printf_filtered (" `%s', ", bfd_get_filename (core_bfd));
256 printf_filtered ("file type %s.\n", bfd_get_target (core_bfd));
257 bfd_map_over_sections (core_bfd, print_section_table, 0);
263 maintenance_print_statistics (char *args, int from_tty)
265 print_objfile_statistics ();
266 print_symbol_bcache_statistics ();
270 maintenance_print_architecture (char *args, int from_tty)
273 gdbarch_dump (current_gdbarch, gdb_stdout);
276 struct ui_file *file = gdb_fopen (args, "w");
278 perror_with_name ("maintenance print architecture");
279 gdbarch_dump (current_gdbarch, file);
280 ui_file_delete (file);
284 /* The "maintenance print" command is defined as a prefix, with
285 allow_unknown 0. Therefore, its own definition is called only for
286 "maintenance print" with no args. */
290 maintenance_print_command (char *arg, int from_tty)
292 printf_unfiltered ("\"maintenance print\" must be followed by the name of a print command.\n");
293 help_list (maintenanceprintlist, "maintenance print ", -1, gdb_stdout);
296 /* The "maintenance translate-address" command converts a section and address
297 to a symbol. This can be called in two ways:
298 maintenance translate-address <secname> <addr>
299 or maintenance translate-address <addr>
303 maintenance_translate_address (char *arg, int from_tty)
308 struct minimal_symbol *sym;
309 struct objfile *objfile;
311 if (arg == NULL || *arg == 0)
312 error ("requires argument (address or section + address)");
318 { /* See if we have a valid section name */
319 while (*p && !isspace (*p)) /* Find end of section name */
321 if (*p == '\000') /* End of command? */
322 error ("Need to specify <section-name> and <address>");
325 p++; /* Skip whitespace */
327 ALL_OBJFILES (objfile)
329 sect = bfd_get_section_by_name (objfile->obfd, arg);
335 error ("Unknown section %s.", arg);
338 address = parse_and_eval_address (p);
341 sym = lookup_minimal_symbol_by_pc_section (address, sect);
343 sym = lookup_minimal_symbol_by_pc (address);
346 printf_filtered ("%s+%s\n",
347 SYMBOL_SOURCE_NAME (sym),
348 paddr_u (address - SYMBOL_VALUE_ADDRESS (sym)));
350 printf_filtered ("no symbol at %s:0x%s\n", sect->name, paddr (address));
352 printf_filtered ("no symbol at 0x%s\n", paddr (address));
358 /* When a command is deprecated the user will be warned the first time
359 the command is used. If possible, a replacement will be
363 maintenance_deprecate (char *args, int from_tty)
365 if (args == NULL || *args == '\0')
367 printf_unfiltered ("\"maintenance deprecate\" takes an argument, \n\
368 the command you want to deprecate, and optionally the replacement command \n\
369 enclosed in quotes.\n");
372 maintenance_do_deprecate (args, 1);
378 maintenance_undeprecate (char *args, int from_tty)
380 if (args == NULL || *args == '\0')
382 printf_unfiltered ("\"maintenance undeprecate\" takes an argument, \n\
383 the command you want to undeprecate.\n");
386 maintenance_do_deprecate (args, 0);
390 /* You really shouldn't be using this. It is just for the testsuite.
391 Rather, you should use deprecate_cmd() when the command is created
392 in _initialize_blah().
394 This function deprecates a command and optionally assigns it a
398 maintenance_do_deprecate (char *text, int deprecate)
401 struct cmd_list_element *alias = NULL;
402 struct cmd_list_element *prefix_cmd = NULL;
403 struct cmd_list_element *cmd = NULL;
405 char *start_ptr = NULL;
406 char *end_ptr = NULL;
408 char *replacement = NULL;
413 if (!lookup_cmd_composition (text, &alias, &prefix_cmd, &cmd))
415 printf_filtered ("Can't find command '%s' to deprecate.\n", text);
421 /* look for a replacement command */
422 start_ptr = strchr (text, '\"');
423 if (start_ptr != NULL)
426 end_ptr = strrchr (start_ptr, '\"');
429 len = end_ptr - start_ptr;
430 start_ptr[len] = '\0';
431 replacement = xstrdup (start_ptr);
436 if (!start_ptr || !end_ptr)
440 /* If they used an alias, we only want to deprecate the alias.
442 Note the MALLOCED_REPLACEMENT test. If the command's replacement
443 string was allocated at compile time we don't want to free the
448 if (alias->flags & MALLOCED_REPLACEMENT)
449 xfree (alias->replacement);
452 alias->flags |= (DEPRECATED_WARN_USER | CMD_DEPRECATED);
454 alias->flags &= ~(DEPRECATED_WARN_USER | CMD_DEPRECATED);
455 alias->replacement = replacement;
456 alias->flags |= MALLOCED_REPLACEMENT;
461 if (cmd->flags & MALLOCED_REPLACEMENT)
462 xfree (cmd->replacement);
465 cmd->flags |= (DEPRECATED_WARN_USER | CMD_DEPRECATED);
467 cmd->flags &= ~(DEPRECATED_WARN_USER | CMD_DEPRECATED);
468 cmd->replacement = replacement;
469 cmd->flags |= MALLOCED_REPLACEMENT;
474 /* Maintenance set/show framework. */
476 static struct cmd_list_element *maintenance_set_cmdlist;
477 static struct cmd_list_element *maintenance_show_cmdlist;
480 maintenance_set_cmd (char *args, int from_tty)
482 printf_unfiltered ("\"maintenance set\" must be followed by the name of a set command.\n");
483 help_list (maintenance_set_cmdlist, "maintenance set ", -1, gdb_stdout);
487 maintenance_show_cmd (char *args, int from_tty)
489 cmd_show_list (maintenance_show_cmdlist, from_tty, "");
493 /* Profiling support. */
495 static int maintenance_profile_p;
498 maintenance_set_profile_cmd (char *args, int from_tty, struct cmd_list_element *c)
500 maintenance_profile_p = 0;
501 warning ("\"maintenance set profile\" command not supported.\n");
506 _initialize_maint_cmds (void)
508 struct cmd_list_element *tmpcmd;
510 add_prefix_cmd ("maintenance", class_maintenance, maintenance_command,
511 "Commands for use by GDB maintainers.\n\
512 Includes commands to dump specific internal GDB structures in\n\
513 a human readable form, to cause GDB to deliberately dump core,\n\
514 to test internal functions such as the C++ demangler, etc.",
515 &maintenancelist, "maintenance ", 0,
518 add_com_alias ("mt", "maintenance", class_maintenance, 1);
520 add_prefix_cmd ("info", class_maintenance, maintenance_info_command,
521 "Commands for showing internal info about the program being debugged.",
522 &maintenanceinfolist, "maintenance info ", 0,
524 add_alias_cmd ("i", "info", class_maintenance, 1, &maintenancelist);
526 add_cmd ("sections", class_maintenance, maintenance_info_sections,
527 "List the BFD sections of the exec and core files.",
528 &maintenanceinfolist);
530 add_prefix_cmd ("print", class_maintenance, maintenance_print_command,
531 "Maintenance command for printing GDB internal state.",
532 &maintenanceprintlist, "maintenance print ", 0,
535 add_prefix_cmd ("set", class_maintenance, maintenance_set_cmd, "\
536 Set GDB internal variables used by the GDB maintainer.\n\
537 Configure variables internal to GDB that aid in GDB's maintenance",
538 &maintenance_set_cmdlist, "maintenance set ",
542 add_prefix_cmd ("show", class_maintenance, maintenance_show_cmd, "\
543 Show GDB internal variables used by the GDB maintainer.\n\
544 Configure variables internal to GDB that aid in GDB's maintenance",
545 &maintenance_show_cmdlist, "maintenance show ",
550 add_cmd ("dump-me", class_maintenance, maintenance_dump_me,
551 "Get fatal error; make debugger dump its core.\n\
552 GDB sets it's handling of SIGQUIT back to SIG_DFL and then sends\n\
553 itself a SIGQUIT signal.",
557 add_cmd ("internal-error", class_maintenance, maintenance_internal_error,
558 "Give GDB an internal error.\n\
559 Cause GDB to behave as if an internal error was detected.",
562 add_cmd ("demangle", class_maintenance, maintenance_demangle,
563 "Demangle a C++ mangled name.\n\
564 Call internal GDB demangler routine to demangle a C++ link name\n\
565 and prints the result.",
568 add_cmd ("time", class_maintenance, maintenance_time_display,
569 "Set the display of time usage.\n\
570 If nonzero, will cause the execution time for each command to be\n\
571 displayed, following the command's output.",
574 add_cmd ("space", class_maintenance, maintenance_space_display,
575 "Set the display of space usage.\n\
576 If nonzero, will cause the execution space for each command to be\n\
577 displayed, following the command's output.",
580 add_cmd ("type", class_maintenance, maintenance_print_type,
581 "Print a type chain for a given symbol.\n\
582 For each node in a type chain, print the raw data for each member of\n\
583 the type structure, and the interpretation of the data.",
584 &maintenanceprintlist);
586 add_cmd ("symbols", class_maintenance, maintenance_print_symbols,
587 "Print dump of current symbol definitions.\n\
588 Entries in the full symbol table are dumped to file OUTFILE.\n\
589 If a SOURCE file is specified, dump only that file's symbols.",
590 &maintenanceprintlist);
592 add_cmd ("msymbols", class_maintenance, maintenance_print_msymbols,
593 "Print dump of current minimal symbol definitions.\n\
594 Entries in the minimal symbol table are dumped to file OUTFILE.\n\
595 If a SOURCE file is specified, dump only that file's minimal symbols.",
596 &maintenanceprintlist);
598 add_cmd ("psymbols", class_maintenance, maintenance_print_psymbols,
599 "Print dump of current partial symbol definitions.\n\
600 Entries in the partial symbol table are dumped to file OUTFILE.\n\
601 If a SOURCE file is specified, dump only that file's partial symbols.",
602 &maintenanceprintlist);
604 add_cmd ("objfiles", class_maintenance, maintenance_print_objfiles,
605 "Print dump of current object file definitions.",
606 &maintenanceprintlist);
608 add_cmd ("statistics", class_maintenance, maintenance_print_statistics,
609 "Print statistics about internal gdb state.",
610 &maintenanceprintlist);
612 add_cmd ("architecture", class_maintenance, maintenance_print_architecture,
613 "Print the internal architecture configuration.\
614 Takes an optional file parameter.",
615 &maintenanceprintlist);
617 add_cmd ("check-symtabs", class_maintenance, maintenance_check_symtabs,
618 "Check consistency of psymtabs and symtabs.",
621 add_cmd ("translate-address", class_maintenance, maintenance_translate_address,
622 "Translate a section name and address to a symbol.",
625 add_cmd ("deprecate", class_maintenance, maintenance_deprecate,
626 "Deprecate a command. Note that this is just in here so the \n\
627 testsuite can check the comamnd deprecator. You probably shouldn't use this,\n\
628 rather you should use the C function deprecate_cmd(). If you decide you \n\
629 want to use it: maintenance deprecate 'commandname' \"replacement\". The \n\
630 replacement is optional.", &maintenancelist);
632 add_cmd ("undeprecate", class_maintenance, maintenance_undeprecate,
633 "Undeprecate a command. Note that this is just in here so the \n\
634 testsuite can check the comamnd deprecator. You probably shouldn't use this,\n\
635 If you decide you want to use it: maintenance undeprecate 'commandname'",
639 add_set_cmd ("watchdog", class_maintenance, var_zinteger, (char *) &watchdog,
640 "Set watchdog timer.\n\
641 When non-zero, this timeout is used instead of waiting forever for a target to\n\
642 finish a low-level step or continue operation. If the specified amount of time\n\
643 passes without a response from the target, an error occurs.", &setlist),
648 /* FIXME: cagney/2001-09-24: A patch introducing a
649 add_set_boolean_cmd() is pending, the below should probably use
650 it. A patch implementing profiling is pending, this just sets up
652 tmpcmd = add_set_cmd ("profile", class_maintenance,
653 var_boolean, &maintenance_profile_p,
654 "Set internal profiling.\n\
655 When enabled GDB is profiled.",
656 &maintenance_set_cmdlist);
657 tmpcmd->function.sfunc = maintenance_set_profile_cmd;
658 add_show_from_set (tmpcmd, &maintenance_show_cmdlist);