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authorStan Shebs <shebs@codesourcery.com>1999-04-16 01:35:26 +0000
committerStan Shebs <shebs@codesourcery.com>1999-04-16 01:35:26 +0000
commitc906108c21474dfb4ed285bcc0ac6fe02cd400cc (patch)
treea0015aa5cedc19ccbab307251353a41722a3ae13 /gdb/maint.c
parentcd946cff9ede3f30935803403f06f6ed30cad136 (diff)
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Initial creation of sourceware repositorygdb-4_18-branchpoint
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+/* 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"
+
+#if MAINTENANCE_CMDS /* Entire rest of file goes away if not including maint cmds */
+
+#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"
+
+#ifdef HAVE_UNISTD_H
+#include <unistd.h>
+#endif
+
+static void maintenance_command PARAMS ((char *, int));
+
+static void maintenance_dump_me PARAMS ((char *, int));
+
+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? "))
+ {
+ signal (SIGQUIT, SIG_DFL);
+ kill (getpid (), SIGQUIT);
+ }
+}
+#endif
+
+/* 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+%u\n",
+ SYMBOL_SOURCE_NAME (sym),
+ address - SYMBOL_VALUE_ADDRESS (sym));
+ else if (sect)
+ printf_filtered ("no symbol at %s:0x%08x\n", sect->name, address);
+ else
+ printf_filtered ("no symbol at 0x%08x\n", address);
+
+ return;
+}
+
+#endif /* MAINTENANCE_CMDS */
+
+void
+_initialize_maint_cmds ()
+{
+#if MAINTENANCE_CMDS /* Entire file goes away if not including 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 ("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);
+#endif /* MAINTENANCE_CMDS */
+}