| /* Support for GDB maintenance commands. |
| Copyright 1992, 1993, 1994 Free Software Foundation, Inc. |
| Written by Fred Fish at Cygnus Support. |
| |
| This file is part of GDB. |
| |
| This program is free software; you can redistribute it and/or modify |
| it under the terms of the GNU General Public License as published by |
| the Free Software Foundation; either version 2 of the License, or |
| (at your option) any later version. |
| |
| This program is distributed in the hope that it will be useful, |
| but WITHOUT ANY WARRANTY; without even the implied warranty of |
| MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| GNU General Public License for more details. |
| |
| You should have received a copy of the GNU General Public License |
| along with this program; if not, write to the Free Software |
| Foundation, Inc., 59 Temple Place - Suite 330, |
| Boston, MA 02111-1307, USA. */ |
| |
| |
| #include "defs.h" |
| #include <ctype.h> |
| #include <signal.h> |
| #include "command.h" |
| #include "gdbcmd.h" |
| #include "symtab.h" |
| #include "gdbtypes.h" |
| #include "demangle.h" |
| #include "gdbcore.h" |
| #include "expression.h" /* For language.h */ |
| #include "language.h" |
| #include "symfile.h" |
| #include "objfiles.h" |
| #include "value.h" |
| |
| extern void _initialize_maint_cmds PARAMS ((void)); |
| |
| static void maintenance_command PARAMS ((char *, int)); |
| |
| static void maintenance_dump_me PARAMS ((char *, int)); |
| |
| static void maintenance_internal_error PARAMS ((char *args, int from_tty)); |
| |
| static void maintenance_demangle PARAMS ((char *, int)); |
| |
| static void maintenance_time_display PARAMS ((char *, int)); |
| |
| static void maintenance_space_display PARAMS ((char *, int)); |
| |
| static void maintenance_info_command PARAMS ((char *, int)); |
| |
| static void print_section_table PARAMS ((bfd *, asection *, PTR)); |
| |
| static void maintenance_info_sections PARAMS ((char *, int)); |
| |
| static void maintenance_print_command PARAMS ((char *, int)); |
| |
| /* Set this to the maximum number of seconds to wait instead of waiting forever |
| in target_wait(). If this timer times out, then it generates an error and |
| the command is aborted. This replaces most of the need for timeouts in the |
| GDB test suite, and makes it possible to distinguish between a hung target |
| and one with slow communications. */ |
| |
| int watchdog = 0; |
| |
| /* |
| |
| LOCAL FUNCTION |
| |
| maintenance_command -- access the maintenance subcommands |
| |
| SYNOPSIS |
| |
| void maintenance_command (char *args, int from_tty) |
| |
| DESCRIPTION |
| |
| */ |
| |
| static void |
| maintenance_command (args, from_tty) |
| char *args; |
| int from_tty; |
| { |
| printf_unfiltered ("\"maintenance\" must be followed by the name of a maintenance command.\n"); |
| help_list (maintenancelist, "maintenance ", -1, gdb_stdout); |
| } |
| |
| #ifndef _WIN32 |
| /* ARGSUSED */ |
| static void |
| maintenance_dump_me (args, from_tty) |
| char *args; |
| int from_tty; |
| { |
| if (query ("Should GDB dump core? ")) |
| { |
| #ifdef __DJGPP__ |
| /* SIGQUIT by default is ignored, so use SIGABRT instead. */ |
| signal (SIGABRT, SIG_DFL); |
| kill (getpid (), SIGABRT); |
| #else |
| signal (SIGQUIT, SIG_DFL); |
| kill (getpid (), SIGQUIT); |
| #endif |
| } |
| } |
| #endif |
| |
| /* Stimulate the internal error mechanism that GDB uses when an |
| internal problem is detected. Allows testing of the mechanism. |
| Also useful when the user wants to drop a core file but not exit |
| GDB. */ |
| |
| static void |
| maintenance_internal_error (char *args, int from_tty) |
| { |
| internal_error ("internal maintenance"); |
| } |
| |
| /* Someday we should allow demangling for things other than just |
| explicit strings. For example, we might want to be able to |
| specify the address of a string in either GDB's process space |
| or the debuggee's process space, and have gdb fetch and demangle |
| that string. If we have a char* pointer "ptr" that points to |
| a string, we might want to be able to given just the name and |
| have GDB demangle and print what it points to, etc. (FIXME) */ |
| |
| static void |
| maintenance_demangle (args, from_tty) |
| char *args; |
| int from_tty; |
| { |
| char *demangled; |
| |
| if (args == NULL || *args == '\0') |
| { |
| printf_unfiltered ("\"maintenance demangle\" takes an argument to demangle.\n"); |
| } |
| else |
| { |
| demangled = cplus_demangle (args, DMGL_ANSI | DMGL_PARAMS); |
| if (demangled != NULL) |
| { |
| printf_unfiltered ("%s\n", demangled); |
| free (demangled); |
| } |
| else |
| { |
| printf_unfiltered ("Can't demangle \"%s\"\n", args); |
| } |
| } |
| } |
| |
| static void |
| maintenance_time_display (args, from_tty) |
| char *args; |
| int from_tty; |
| { |
| extern int display_time; |
| |
| if (args == NULL || *args == '\0') |
| printf_unfiltered ("\"maintenance time\" takes a numeric argument.\n"); |
| else |
| display_time = strtol (args, NULL, 10); |
| } |
| |
| static void |
| maintenance_space_display (args, from_tty) |
| char *args; |
| int from_tty; |
| { |
| extern int display_space; |
| |
| if (args == NULL || *args == '\0') |
| printf_unfiltered ("\"maintenance space\" takes a numeric argument.\n"); |
| else |
| display_space = strtol (args, NULL, 10); |
| } |
| |
| /* The "maintenance info" command is defined as a prefix, with allow_unknown 0. |
| Therefore, its own definition is called only for "maintenance info" with |
| no args. */ |
| |
| /* ARGSUSED */ |
| static void |
| maintenance_info_command (arg, from_tty) |
| char *arg; |
| int from_tty; |
| { |
| printf_unfiltered ("\"maintenance info\" must be followed by the name of an info command.\n"); |
| help_list (maintenanceinfolist, "maintenance info ", -1, gdb_stdout); |
| } |
| |
| static void |
| print_section_table (abfd, asect, ignore) |
| bfd *abfd; |
| asection *asect; |
| PTR ignore; |
| { |
| flagword flags; |
| |
| flags = bfd_get_section_flags (abfd, asect); |
| |
| /* FIXME-32x64: Need print_address_numeric with field width. */ |
| printf_filtered (" %s", |
| local_hex_string_custom |
| ((unsigned long) bfd_section_vma (abfd, asect), "08l")); |
| printf_filtered ("->%s", |
| local_hex_string_custom |
| ((unsigned long) (bfd_section_vma (abfd, asect) |
| + bfd_section_size (abfd, asect)), |
| "08l")); |
| printf_filtered (" at %s", |
| local_hex_string_custom |
| ((unsigned long) asect->filepos, "08l")); |
| printf_filtered (": %s", bfd_section_name (abfd, asect)); |
| |
| if (flags & SEC_ALLOC) |
| printf_filtered (" ALLOC"); |
| if (flags & SEC_LOAD) |
| printf_filtered (" LOAD"); |
| if (flags & SEC_RELOC) |
| printf_filtered (" RELOC"); |
| if (flags & SEC_READONLY) |
| printf_filtered (" READONLY"); |
| if (flags & SEC_CODE) |
| printf_filtered (" CODE"); |
| if (flags & SEC_DATA) |
| printf_filtered (" DATA"); |
| if (flags & SEC_ROM) |
| printf_filtered (" ROM"); |
| if (flags & SEC_CONSTRUCTOR) |
| printf_filtered (" CONSTRUCTOR"); |
| if (flags & SEC_HAS_CONTENTS) |
| printf_filtered (" HAS_CONTENTS"); |
| if (flags & SEC_NEVER_LOAD) |
| printf_filtered (" NEVER_LOAD"); |
| if (flags & SEC_COFF_SHARED_LIBRARY) |
| printf_filtered (" COFF_SHARED_LIBRARY"); |
| if (flags & SEC_IS_COMMON) |
| printf_filtered (" IS_COMMON"); |
| |
| printf_filtered ("\n"); |
| } |
| |
| /* ARGSUSED */ |
| static void |
| maintenance_info_sections (arg, from_tty) |
| char *arg; |
| int from_tty; |
| { |
| if (exec_bfd) |
| { |
| printf_filtered ("Exec file:\n"); |
| printf_filtered (" `%s', ", bfd_get_filename (exec_bfd)); |
| wrap_here (" "); |
| printf_filtered ("file type %s.\n", bfd_get_target (exec_bfd)); |
| bfd_map_over_sections (exec_bfd, print_section_table, 0); |
| } |
| |
| if (core_bfd) |
| { |
| printf_filtered ("Core file:\n"); |
| printf_filtered (" `%s', ", bfd_get_filename (core_bfd)); |
| wrap_here (" "); |
| printf_filtered ("file type %s.\n", bfd_get_target (core_bfd)); |
| bfd_map_over_sections (core_bfd, print_section_table, 0); |
| } |
| } |
| |
| /* ARGSUSED */ |
| void |
| maintenance_print_statistics (args, from_tty) |
| char *args; |
| int from_tty; |
| { |
| print_objfile_statistics (); |
| print_symbol_bcache_statistics (); |
| } |
| |
| /* The "maintenance print" command is defined as a prefix, with allow_unknown |
| 0. Therefore, its own definition is called only for "maintenance print" |
| with no args. */ |
| |
| /* ARGSUSED */ |
| static void |
| maintenance_print_command (arg, from_tty) |
| char *arg; |
| int from_tty; |
| { |
| printf_unfiltered ("\"maintenance print\" must be followed by the name of a print command.\n"); |
| help_list (maintenanceprintlist, "maintenance print ", -1, gdb_stdout); |
| } |
| |
| /* The "maintenance translate-address" command converts a section and address |
| to a symbol. This can be called in two ways: |
| maintenance translate-address <secname> <addr> |
| or maintenance translate-address <addr> |
| */ |
| |
| static void |
| maintenance_translate_address (arg, from_tty) |
| char *arg; |
| int from_tty; |
| { |
| CORE_ADDR address; |
| asection *sect; |
| char *p; |
| struct minimal_symbol *sym; |
| struct objfile *objfile; |
| |
| if (arg == NULL || *arg == 0) |
| error ("requires argument (address or section + address)"); |
| |
| sect = NULL; |
| p = arg; |
| |
| if (!isdigit (*p)) |
| { /* See if we have a valid section name */ |
| while (*p && !isspace (*p)) /* Find end of section name */ |
| p++; |
| if (*p == '\000') /* End of command? */ |
| error ("Need to specify <section-name> and <address>"); |
| *p++ = '\000'; |
| while (isspace (*p)) |
| p++; /* Skip whitespace */ |
| |
| ALL_OBJFILES (objfile) |
| { |
| sect = bfd_get_section_by_name (objfile->obfd, arg); |
| if (sect != NULL) |
| break; |
| } |
| |
| if (!sect) |
| error ("Unknown section %s.", arg); |
| } |
| |
| address = parse_and_eval_address (p); |
| |
| if (sect) |
| sym = lookup_minimal_symbol_by_pc_section (address, sect); |
| else |
| sym = lookup_minimal_symbol_by_pc (address); |
| |
| if (sym) |
| printf_filtered ("%s+%s\n", |
| SYMBOL_SOURCE_NAME (sym), |
| paddr_u (address - SYMBOL_VALUE_ADDRESS (sym))); |
| else if (sect) |
| printf_filtered ("no symbol at %s:0x%s\n", sect->name, paddr (address)); |
| else |
| printf_filtered ("no symbol at 0x%s\n", paddr (address)); |
| |
| return; |
| } |
| |
| void |
| _initialize_maint_cmds () |
| { |
| add_prefix_cmd ("maintenance", class_maintenance, maintenance_command, |
| "Commands for use by GDB maintainers.\n\ |
| Includes commands to dump specific internal GDB structures in\n\ |
| a human readable form, to cause GDB to deliberately dump core,\n\ |
| to test internal functions such as the C++ demangler, etc.", |
| &maintenancelist, "maintenance ", 0, |
| &cmdlist); |
| |
| add_com_alias ("mt", "maintenance", class_maintenance, 1); |
| |
| add_prefix_cmd ("info", class_maintenance, maintenance_info_command, |
| "Commands for showing internal info about the program being debugged.", |
| &maintenanceinfolist, "maintenance info ", 0, |
| &maintenancelist); |
| |
| add_cmd ("sections", class_maintenance, maintenance_info_sections, |
| "List the BFD sections of the exec and core files.", |
| &maintenanceinfolist); |
| |
| add_prefix_cmd ("print", class_maintenance, maintenance_print_command, |
| "Maintenance command for printing GDB internal state.", |
| &maintenanceprintlist, "maintenance print ", 0, |
| &maintenancelist); |
| |
| #ifndef _WIN32 |
| add_cmd ("dump-me", class_maintenance, maintenance_dump_me, |
| "Get fatal error; make debugger dump its core.\n\ |
| GDB sets it's handling of SIGQUIT back to SIG_DFL and then sends\n\ |
| itself a SIGQUIT signal.", |
| &maintenancelist); |
| #endif |
| |
| add_cmd ("internal-error", class_maintenance, maintenance_internal_error, |
| "Give GDB an internal error.\n\ |
| Cause GDB to behave as if an internal error was detected.", |
| &maintenancelist); |
| |
| add_cmd ("demangle", class_maintenance, maintenance_demangle, |
| "Demangle a C++ mangled name.\n\ |
| Call internal GDB demangler routine to demangle a C++ link name\n\ |
| and prints the result.", |
| &maintenancelist); |
| |
| add_cmd ("time", class_maintenance, maintenance_time_display, |
| "Set the display of time usage.\n\ |
| If nonzero, will cause the execution time for each command to be\n\ |
| displayed, following the command's output.", |
| &maintenancelist); |
| |
| add_cmd ("space", class_maintenance, maintenance_space_display, |
| "Set the display of space usage.\n\ |
| If nonzero, will cause the execution space for each command to be\n\ |
| displayed, following the command's output.", |
| &maintenancelist); |
| |
| add_cmd ("type", class_maintenance, maintenance_print_type, |
| "Print a type chain for a given symbol.\n\ |
| For each node in a type chain, print the raw data for each member of\n\ |
| the type structure, and the interpretation of the data.", |
| &maintenanceprintlist); |
| |
| add_cmd ("symbols", class_maintenance, maintenance_print_symbols, |
| "Print dump of current symbol definitions.\n\ |
| Entries in the full symbol table are dumped to file OUTFILE.\n\ |
| If a SOURCE file is specified, dump only that file's symbols.", |
| &maintenanceprintlist); |
| |
| add_cmd ("msymbols", class_maintenance, maintenance_print_msymbols, |
| "Print dump of current minimal symbol definitions.\n\ |
| Entries in the minimal symbol table are dumped to file OUTFILE.\n\ |
| If a SOURCE file is specified, dump only that file's minimal symbols.", |
| &maintenanceprintlist); |
| |
| add_cmd ("psymbols", class_maintenance, maintenance_print_psymbols, |
| "Print dump of current partial symbol definitions.\n\ |
| Entries in the partial symbol table are dumped to file OUTFILE.\n\ |
| If a SOURCE file is specified, dump only that file's partial symbols.", |
| &maintenanceprintlist); |
| |
| add_cmd ("objfiles", class_maintenance, maintenance_print_objfiles, |
| "Print dump of current object file definitions.", |
| &maintenanceprintlist); |
| |
| add_cmd ("statistics", class_maintenance, maintenance_print_statistics, |
| "Print statistics about internal gdb state.", |
| &maintenanceprintlist); |
| |
| add_cmd ("check-symtabs", class_maintenance, maintenance_check_symtabs, |
| "Check consistency of psymtabs and symtabs.", |
| &maintenancelist); |
| |
| add_cmd ("translate-address", class_maintenance, maintenance_translate_address, |
| "Translate a section name and address to a symbol.", |
| &maintenancelist); |
| |
| add_show_from_set ( |
| add_set_cmd ("watchdog", class_maintenance, var_zinteger, (char *) &watchdog, |
| "Set watchdog timer.\n\ |
| When non-zero, this timeout is used instead of waiting forever for a target to\n\ |
| finish a low-level step or continue operation. If the specified amount of time\n\ |
| passes without a response from the target, an error occurs.", &setlist), |
| &showlist); |
| } |