/* Top level for GDB, the GNU debugger.
- Copyright (C) 1986, 1987 Free Software Foundation, Inc.
+ Copyright (C) 1986, 1987, 1988, 1989, 1990 Free Software Foundation, Inc.
-GDB is distributed in the hope that it will be useful, but WITHOUT ANY
-WARRANTY. No author or distributor accepts responsibility to anyone
-for the consequences of using it or for whether it serves any
-particular purpose or works at all, unless he says so in writing.
-Refer to the GDB General Public License for full details.
+This file is part of GDB.
-Everyone is granted permission to copy, modify and redistribute GDB,
-but only under the conditions described in the GDB General Public
-License. A copy of this license is supposed to have been given to you
-along with GDB so you can know your rights and responsibilities. It
-should be in a file named COPYING. Among other things, the copyright
-notice and this notice must be preserved on all copies.
+GDB 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 1, or (at your option)
+any later version.
-In other words, go ahead and share GDB, but don't try to stop
-anyone else from sharing it farther. Help stamp out software hoarding!
-*/
+GDB 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 GDB; see the file COPYING. If not, write to
+the Free Software Foundation, 675 Mass Ave, Cambridge, MA 02139, USA. */
+
+#include <stdio.h>
+int fclose ();
+#include "defs.h"
+#include "gdbcmd.h"
+#include "param.h"
+#include "symtab.h"
+#include "inferior.h"
+#include "signals.h"
+#include "target.h"
+#include "breakpoint.h"
+
+#include <getopt.h>
+#include <readline/readline.h>
+#include <readline/history.h>
+
+/* readline defines this. */
+#undef savestring
+
+#ifdef USG
#include <sys/types.h>
+#include <unistd.h>
+#endif
+
+#include <string.h>
#include <sys/file.h>
-#include <stdio.h>
#include <setjmp.h>
-#include <signal.h>
#include <sys/param.h>
-#include "defs.h"
-#include "command.h"
-#include "param.h"
+#include <sys/stat.h>
#ifdef SET_STACK_LIMIT_HUGE
#include <sys/time.h>
#include <sys/resource.h>
+#include <ctype.h>
+
+int original_stack_limit;
+#endif
+
+
+/* If this definition isn't overridden by the header files, assume
+ that isatty and fileno exist on this system. */
+#ifndef ISATTY
+#define ISATTY(FP) (isatty (fileno (FP)))
+#endif
+
+/* Initialization file name for gdb. This is overridden in some configs. */
+
+#ifndef GDBINIT_FILENAME
+#define GDBINIT_FILENAME ".gdbinit"
#endif
+char gdbinit[] = GDBINIT_FILENAME;
+
+#define ALL_CLEANUPS ((struct cleanup *)0)
/* Version number of GDB, as a string. */
extern char *version;
+/* Flag for whether we want all the "from_tty" gubbish printed. */
+
+int caution = 1; /* Default is yes, sigh. */
+
+/*
+ * Define all cmd_list_element's
+ */
+
/* Chain containing all defined commands. */
struct cmd_list_element *cmdlist;
struct cmd_list_element *infolist;
+/* Chain containing all defined enable subcommands. */
+
+struct cmd_list_element *enablelist;
+
+/* Chain containing all defined disable subcommands. */
+
+struct cmd_list_element *disablelist;
+
+/* Chain containing all defined delete subcommands. */
+
+struct cmd_list_element *deletelist;
+
+/* Chain containing all defined "enable breakpoint" subcommands. */
+
+struct cmd_list_element *enablebreaklist;
+
+/* Chain containing all defined set subcommands */
+
+struct cmd_list_element *setlist;
+
+/* Chain containing all defined show subcommands. */
+struct cmd_list_element *showlist;
+
+/* Chain containing all defined \"set history\". */
+
+struct cmd_list_element *sethistlist;
+
+/* Chain containing all defined \"show history\". */
+struct cmd_list_element *showhistlist;
+
+/* Chain containing all defined \"unset history\". */
+
+struct cmd_list_element *unsethistlist;
+
/* stdio stream that command input is being read from. */
FILE *instream;
-/* Nonzero if we should refrain from using an X window. */
+/* Current working directory. */
+
+char *current_directory;
-int inhibit_windows = 0;
+/* The directory name is actually stored here (usually). */
+static char dirbuf[MAXPATHLEN];
/* Function to call before reading a command, if nonzero.
The function receives two args: an input stream,
void (*window_hook) ();
+extern int frame_file_full_name;
+int epoch_interface;
+int xgdb_verbose;
+
+/* The external commands we call... */
+extern void init_source_path ();
+extern void directory_command ();
+extern void exec_file_command ();
+extern void symbol_file_command ();
+extern void core_file_command ();
+extern void tty_command ();
+
+extern void help_list ();
+extern void initialize_all_files ();
+extern void init_malloc ();
+
+/* Forward declarations for this file */
void free_command_lines ();
-char *read_line ();
+char *gdb_readline ();
+char *command_line_input ();
static void initialize_main ();
+static void initialize_cmd_lists ();
+static void init_signals ();
+static void quit_command ();
void command_loop ();
static void source_command ();
-void print_gdb_version ();
+static void print_gdb_version ();
+static void float_handler ();
+static void cd_command ();
+static void read_command_file ();
+
+char *getenv ();
/* gdb prints this when reading a command interactively */
static char *prompt;
allocated for it so far. */
char *line;
-int linesize;
+int linesize = 100;
+
+/* Baud rate specified for talking to serial target systems. Default
+ is left as a zero pointer, so targets can choose their own defaults. */
+
+char *baud_rate;
+/* Signal to catch ^Z typed while reading a command: SIGTSTP or SIGCONT. */
+
+#ifndef STOP_SIGNAL
+#ifdef SIGTSTP
+#define STOP_SIGNAL SIGTSTP
+#endif
+#endif
+
+/* Some System V have job control but not sigsetmask(). */
+#if !defined (HAVE_SIGSETMASK)
+#define HAVE_SIGSETMASK !defined (USG)
+#endif
+
+#if !HAVE_SIGSETMASK
+#define sigsetmask(n)
+#endif
+\f
/* This is how `error' returns to command level. */
jmp_buf to_top_level;
+void
return_to_top_level ()
{
quit_flag = 0;
immediate_quit = 0;
- clear_breakpoint_commands ();
+ bpstat_clear_actions(stop_bpstat); /* Clear queued breakpoint commands */
clear_momentary_breakpoints ();
- do_cleanups (0);
+ disable_current_display ();
+ do_cleanups (ALL_CLEANUPS);
longjmp (to_top_level, 1);
}
+
+/* Call FUNC with arg ARGS, catching any errors.
+ If there is no error, return the value returned by FUNC.
+ If there is an error, return zero after printing ERRSTRING
+ (which is in addition to the specific error message already printed). */
+
+int
+catch_errors (func, args, errstring)
+ int (*func) ();
+ int args;
+ char *errstring;
+{
+ jmp_buf saved;
+ int val;
+ struct cleanup *saved_cleanup_chain;
+
+ saved_cleanup_chain = save_cleanups ();
+
+ bcopy (to_top_level, saved, sizeof (jmp_buf));
+
+ if (setjmp (to_top_level) == 0)
+ val = (*func) (args);
+ else
+ {
+ if (errstring)
+ fprintf (stderr, "%s\n", errstring);
+ val = 0;
+ }
+
+ restore_cleanups (saved_cleanup_chain);
+
+ bcopy (saved, to_top_level, sizeof (jmp_buf));
+ return val;
+}
+
+/* Handler for SIGHUP. */
+
+static void
+disconnect ()
+{
+ kill_inferior_fast ();
+ signal (SIGHUP, SIG_DFL);
+ kill (getpid (), SIGHUP);
+}
\f
-main (argc, argv, envp)
+/* Clean up on error during a "source" command (or execution of a
+ user-defined command). */
+
+static void
+source_cleanup (stream)
+ FILE *stream;
+{
+ /* Restore the previous input stream. */
+ instream = stream;
+}
+
+/* Read commands from STREAM. */
+static void
+read_command_file (stream)
+ FILE *stream;
+{
+ struct cleanup *cleanups;
+
+ cleanups = make_cleanup (source_cleanup, instream);
+ instream = stream;
+ command_loop ();
+ do_cleanups (cleanups);
+}
+\f
+int
+main (argc, argv)
int argc;
char **argv;
- char **envp;
{
- extern void request_quit ();
int count;
- int inhibit_gdbinit = 0;
- int quiet = 0;
- int batch = 0;
+ static int inhibit_gdbinit = 0;
+ static int quiet = 0;
+ static int batch = 0;
+
+ /* Pointers to various arguments from command line. */
+ char *symarg = NULL;
+ char *execarg = NULL;
+ char *corearg = NULL;
+ char *cdarg = NULL;
+ char *ttyarg = NULL;
+
+ /* Pointers to all arguments of +command option. */
+ char **cmdarg;
+ /* Allocated size of cmdarg. */
+ int cmdsize;
+ /* Number of elements of cmdarg used. */
+ int ncmd;
+
+ /* Indices of all arguments of +directory option. */
+ char **dirarg;
+ /* Allocated size. */
+ int dirsize;
+ /* Number of elements used. */
+ int ndir;
+
register int i;
+ /* This needs to happen before the first use of malloc. */
+ init_malloc ();
+
+#if defined (ALIGN_STACK_ON_STARTUP)
+ i = (int) &count & 0x3;
+ if (i != 0)
+ alloca (4 - i);
+#endif
+
+ cmdsize = 1;
+ cmdarg = (char **) xmalloc (cmdsize * sizeof (*cmdarg));
+ ncmd = 0;
+ dirsize = 1;
+ dirarg = (char **) xmalloc (dirsize * sizeof (*dirarg));
+ ndir = 0;
+
quit_flag = 0;
- linesize = 100;
line = (char *) xmalloc (linesize);
+ line[0] = '\0'; /* Terminate saved (now empty) cmd line */
instream = stdin;
+ getwd (dirbuf);
+ current_directory = dirbuf;
+
#ifdef SET_STACK_LIMIT_HUGE
{
struct rlimit rlim;
/* Set the stack limit huge so that alloca (particularly stringtab
* in dbxread.c) does not fail. */
getrlimit (RLIMIT_STACK, &rlim);
+ original_stack_limit = rlim.rlim_cur;
rlim.rlim_cur = rlim.rlim_max;
setrlimit (RLIMIT_STACK, &rlim);
}
#endif /* SET_STACK_LIMIT_HUGE */
- /* Look for flag arguments. */
+ /* Parse arguments and options. */
+ {
+ int c;
+ static int print_help;
+ /* When var field is 0, use flag field to record the equivalent
+ short option (or arbitrary numbers starting at 10 for those
+ with no equivalent). */
+ static struct option long_options[] =
+ {
+ {"quiet", 0, &quiet, 1},
+ {"nx", 0, &inhibit_gdbinit, 1},
+ {"batch", 0, &batch, 1},
+ {"epoch", 0, &epoch_interface, 1},
+ {"fullname", 0, &frame_file_full_name, 1},
+ {"help", 0, &print_help, 1},
+ {"se", 1, 0, 10},
+ {"symbols", 1, 0, 's'},
+ {"s", 1, 0, 's'},
+ {"exec", 1, 0, 'e'},
+ {"core", 1, 0, 'c'},
+ {"c", 1, 0, 'c'},
+ {"command", 1, 0, 'x'},
+ {"x", 1, 0, 'x'},
+ {"directory", 1, 0, 'd'},
+ {"cd", 1, 0, 11},
+ {"tty", 1, 0, 't'},
+ {"b", 1, 0, 'b'},
+/* Allow machine descriptions to add more options... */
+#ifdef ADDITIONAL_OPTIONS
+ ADDITIONAL_OPTIONS
+#endif
+ };
+
+ while (1)
+ {
+ c = getopt_long_only (argc, argv, "",
+ long_options, &option_index);
+ if (c == EOF)
+ break;
- for (i = 1; i < argc; i++)
- {
- if (!strcmp (argv[i], "-q") || !strcmp (argv[i], "-quiet"))
- quiet = 1;
- else if (!strcmp (argv[i], "-nx"))
- inhibit_gdbinit = 1;
- else if (!strcmp (argv[i], "-nw"))
- inhibit_windows = 1;
- else if (!strcmp (argv[i], "-batch"))
- batch = 1, quiet = 1;
- else if (argv[i][0] == '-')
- i++;
- }
+ /* Long option that takes an argument. */
+ if (c == 0 && long_options[option_index].flag == 0)
+ c = long_options[option_index].val;
+
+ switch (c)
+ {
+ case 0:
+ /* Long option that just sets a flag. */
+ break;
+ case 10:
+ symarg = optarg;
+ execarg = optarg;
+ break;
+ case 11:
+ cdarg = optarg;
+ break;
+ case 's':
+ symarg = optarg;
+ break;
+ case 'e':
+ execarg = optarg;
+ break;
+ case 'c':
+ corearg = optarg;
+ break;
+ case 'x':
+ cmdarg[ncmd++] = optarg;
+ if (ncmd >= cmdsize)
+ {
+ cmdsize *= 2;
+ cmdarg = (char **) xrealloc ((char *)cmdarg,
+ cmdsize * sizeof (*cmdarg));
+ }
+ break;
+ case 'd':
+ dirarg[ndir++] = optarg;
+ if (ndir >= dirsize)
+ {
+ dirsize *= 2;
+ dirarg = (char **) xrealloc ((char *)dirarg,
+ dirsize * sizeof (*dirarg));
+ }
+ break;
+ case 't':
+ ttyarg = optarg;
+ break;
+ case 'q':
+ quiet = 1;
+ break;
+ case 'b':
+ baud_rate = optarg;
+ break;
+#ifdef ADDITIONAL_OPTION_CASES
+ ADDITIONAL_OPTION_CASES
+#endif
+ case '?':
+ fprintf (stderr,
+ "Use `%s +help' for a complete list of options.\n",
+ argv[0]);
+ exit (1);
+ }
+
+ }
+ if (print_help)
+ {
+ fputs ("\
+This is GDB, the GNU debugger. Use the command\n\
+ gdb [options] [executable [core-file]]\n\
+to enter the debugger.\n\
+\n\
+Options available are:\n\
+ -help Print this message.\n\
+ -quiet Do not print version number on startup.\n\
+ -fullname Output information used by emacs-GDB interface.\n\
+ -epoch Output information used by epoch emacs-GDB interface.\n\
+ -batch Exit after processing options.\n\
+ -nx Do not read .gdbinit file.\n\
+ -tty=TTY Use TTY for input/output by the program being debugged.\n\
+ -cd=DIR Change current directory to DIR.\n\
+ -directory=DIR Search for source files in DIR.\n\
+ -command=FILE Execute GDB commands from FILE.\n\
+ -symbols=SYMFILE Read symbols from SYMFILE.\n\
+ -exec=EXECFILE Use EXECFILE as the executable.\n\
+ -se=FILE Use FILE as symbol file and executable file.\n\
+ -core=COREFILE Analyze the core dump COREFILE.\n\
+ -b BAUDRATE Set serial port baud rate used for remote debugging\n\
+", stderr);
+#ifdef ADDITIONAL_OPTION_HELP
+ fputs (ADDITIONAL_OPTION_HELP, stderr);
+#endif
+ fputs ("\n\
+For more information, type \"help\" from within GDB, or consult the\n\
+GDB manual (available as on-line info or a printed manual).\n", stderr);
+ /* Exiting after printing this message seems like
+ the most useful thing to do. */
+ exit (0);
+ }
+
+ /* OK, that's all the options. The other arguments are filenames. */
+ count = 0;
+ for (; optind < argc; optind++)
+ switch (++count)
+ {
+ case 1:
+ symarg = argv[optind];
+ execarg = argv[optind];
+ break;
+ case 2:
+ corearg = argv[optind];
+ break;
+ case 3:
+ fprintf (stderr,
+ "Excess command line arguments ignored. (%s%s)\n",
+ argv[optind], (optind == argc - 1) ? "" : " ...");
+ break;
+ }
+ if (batch)
+ quiet = 1;
+ }
/* Run the init function of each source file */
+ initialize_cmd_lists (); /* This needs to be done first */
initialize_all_files ();
initialize_main (); /* But that omits this file! Do it now */
-
- signal (SIGINT, request_quit);
- signal (SIGQUIT, SIG_IGN);
+ init_signals ();
if (!quiet)
- print_gdb_version ();
-
- /* Process the command line arguments. */
+ {
+ /* Print all the junk in one place, with a blank line after it
+ to separate it from important stuff like "no such file".
+ Also, we skip most of the noise, like Emacs, if started with
+ a file name rather than with no arguments. */
+ if (execarg == 0) {
+ print_gdb_version (1);
+ printf ("Type \"help\" for a list of commands.\n\n");
+ }
+ }
- count = 0;
- for (i = 1; i < argc; i++)
+ /* Now perform all the actions indicated by the arguments. */
+ if (cdarg != NULL)
{
- register char *arg = argv[i];
- /* Args starting with - say what to do with the following arg
- as a filename. */
- if (arg[0] == '-')
+ if (!setjmp (to_top_level))
{
- extern void exec_file_command (), symbol_file_command ();
- extern void core_file_command (), directory_command ();
- extern void tty_command ();
+ cd_command (cdarg, 0);
+ init_source_path ();
+ }
+ }
+ do_cleanups (ALL_CLEANUPS);
- if (!strcmp (arg, "-q") || !strcmp (arg, "-nx")
- || !strcmp (arg, "quiet") || !strcmp (arg, "-batch"))
- /* Already processed above */
- continue;
+ for (i = 0; i < ndir; i++)
+ if (!setjmp (to_top_level))
+ directory_command (dirarg[i], 0);
+ free (dirarg);
+ do_cleanups (ALL_CLEANUPS);
- if (++i == argc)
- fprintf (stderr, "No argument follows \"%s\".\n", arg);
- if (!setjmp (to_top_level))
- {
- /* -s foo: get syms from foo. -e foo: execute foo.
- -se foo: do both with foo. -c foo: use foo as core dump. */
- if (!strcmp (arg, "-se"))
- {
- exec_file_command (argv[i], !batch);
- symbol_file_command (argv[i], !batch);
- }
- else if (!strcmp (arg, "-s") || !strcmp (arg, "-symbols"))
- symbol_file_command (argv[i], !batch);
- else if (!strcmp (arg, "-e") || !strcmp (arg, "-exec"))
- exec_file_command (argv[i], !batch);
- else if (!strcmp (arg, "-c") || !strcmp (arg, "-core"))
- core_file_command (argv[i], !batch);
- /* -x foo: execute commands from foo. */
- else if (!strcmp (arg, "-x") || !strcmp (arg, "-command")
- || !strcmp (arg, "-commands"))
- source_command (argv[i]);
- /* -d foo: add directory `foo' to source-file directory
- search-list */
- else if (!strcmp (arg, "-d") || !strcmp (arg, "-dir")
- || !strcmp (arg, "-directory"))
- directory_command (argv[i], 0);
- /* -t /def/ttyp1: use /dev/ttyp1 for inferior I/O. */
- else if (!strcmp (arg, "-t") || !strcmp (arg, "-tty"))
- tty_command (argv[i], 0);
- else
- error ("Unknown command-line switch: \"%s\"\n", arg);
- }
- }
- else
+ if (execarg != NULL
+ && symarg != NULL
+ && strcmp (execarg, symarg) == 0)
+ {
+ /* The exec file and the symbol-file are the same. If we can't open
+ it, better only print one error message. */
+ if (!setjmp (to_top_level))
{
- /* Args not thus accounted for
- are treated as, first, the symbol/executable file
- and, second, the core dump file. */
- count++;
- if (!setjmp (to_top_level))
- switch (count)
- {
- case 1:
- exec_file_command (arg, !batch);
- symbol_file_command (arg, !batch);
- break;
-
- case 2:
- core_file_command (arg, !batch);
- break;
-
- case 3:
- fprintf (stderr, "Excess command line args ignored. (%s%s)\n",
- arg, (i == argc - 1) ? "" : " ...");
- }
+ exec_file_command (execarg, !batch);
+ symbol_file_command (symarg, !batch);
}
}
-
- /* Read init file, if it exists in home directory */
- if (getenv ("HOME"))
+ else
{
- char *s;
- s = (char *) xmalloc (strlen (getenv ("HOME")) + 10);
- strcpy (s, getenv ("HOME"));
- strcat (s, "/.gdbinit");
- if (!inhibit_gdbinit && access (s, R_OK) == 0)
+ if (execarg != NULL)
if (!setjmp (to_top_level))
- source_command (s);
+ exec_file_command (execarg, !batch);
+ if (symarg != NULL)
+ if (!setjmp (to_top_level))
+ symbol_file_command (symarg, !batch);
}
+ do_cleanups (ALL_CLEANUPS);
+
+ if (corearg != NULL)
+ if (!setjmp (to_top_level))
+ core_file_command (corearg, !batch);
+ else if (!setjmp (to_top_level))
+ attach_command (corearg, !batch);
+ do_cleanups (ALL_CLEANUPS);
+
+ if (ttyarg != NULL)
+ if (!setjmp (to_top_level))
+ tty_command (ttyarg, !batch);
+ do_cleanups (ALL_CLEANUPS);
+
+#ifdef ADDITIONAL_OPTION_HANDLER
+ ADDITIONAL_OPTION_HANDLER;
+#endif
+
+ {
+ struct stat homebuf, cwdbuf;
+ char *homedir, *homeinit;
+
+ /* Read init file, if it exists in home directory */
+ homedir = getenv ("HOME");
+ if (homedir)
+ {
+ homeinit = (char *) alloca (strlen (getenv ("HOME")) +
+ strlen (gdbinit) + 10);
+ strcpy (homeinit, getenv ("HOME"));
+ strcat (homeinit, "/");
+ strcat (homeinit, gdbinit);
+ if (!inhibit_gdbinit && access (homeinit, R_OK) == 0)
+ if (!setjmp (to_top_level))
+ source_command (homeinit, 0);
+ do_cleanups (ALL_CLEANUPS);
+
+ /* Do stats; no need to do them elsewhere since we'll only
+ need them if homedir is set. Make sure that they are
+ zero in case one of them fails (this guarantees that they
+ won't match if either exists). */
+
+ bzero (&homebuf, sizeof (struct stat));
+ bzero (&cwdbuf, sizeof (struct stat));
+
+ stat (homeinit, &homebuf);
+ stat (gdbinit, &cwdbuf); /* We'll only need this if
+ homedir was set. */
+ }
+
+ /* Read the input file in the current directory, *if* it isn't
+ the same file (it should exist, also). */
+
+ if (!homedir
+ || bcmp ((char *) &homebuf,
+ (char *) &cwdbuf,
+ sizeof (struct stat)))
+ if (!inhibit_gdbinit && access (gdbinit, R_OK) == 0)
+ if (!setjmp (to_top_level))
+ source_command (gdbinit, 0);
+ do_cleanups (ALL_CLEANUPS);
+ }
- /* Read init file, if it exists in current directory. */
- if (!inhibit_gdbinit && access (".gdbinit", R_OK) == 0)
+ for (i = 0; i < ncmd; i++)
if (!setjmp (to_top_level))
- source_command (".gdbinit");
+ {
+ if (cmdarg[i][0] == '-' && cmdarg[i][1] == '\0')
+ read_command_file (stdin);
+ else
+ source_command (cmdarg[i], !batch);
+ do_cleanups (ALL_CLEANUPS);
+ }
+ free (cmdarg);
if (batch)
- fatal ("Attempt to read commands from stdin in batch mode.");
+ {
+ /* We have hit the end of the batch file. */
+ exit (0);
+ }
- if (!quiet)
- printf ("Type \"help\" for a list of commands.\n");
+ /* Do any host- or target-specific hacks. This is used for i960 targets
+ to force the user to set a nindy target and spec its parameters. */
+
+#ifdef BEFORE_MAIN_LOOP_HOOK
+ BEFORE_MAIN_LOOP_HOOK;
+#endif
/* The command loop. */
while (1)
{
if (!setjmp (to_top_level))
- command_loop ();
- clearerr (stdin); /* Don't get hung if C-d is typed. */
+ {
+ do_cleanups (ALL_CLEANUPS); /* Do complete cleanup */
+ command_loop ();
+ quit_command ((char *)0, instream == stdin);
+ }
}
+ /* No exit -- exit is through quit_command. */
}
/* Execute the line P as a command.
register struct command_line *cmdlines;
free_all_values ();
+
+ /* This can happen when command_line_input hits end of file. */
+ if (p == NULL)
+ return;
+
while (*p == ' ' || *p == '\t') p++;
if (*p)
{
- c = lookup_cmd (&p, cmdlist, "", 0);
- if (c->function == 0)
- error ("That is not a command, just a help topic.");
- else if (c->class == (int) class_user)
+ char *arg;
+
+ c = lookup_cmd (&p, cmdlist, "", 0, 1);
+ /* Pass null arg rather than an empty one. */
+ arg = *p ? p : 0;
+ if (c->class == class_user)
{
+ struct cleanup *old_chain;
+
if (*p)
- error ("User-defined commands cannot take command-line arguments: \"%s\"",
- p);
- cmdlines = (struct command_line *) c->function;
- if (cmdlines == (struct command_line *) 0)
+ error ("User-defined commands cannot take arguments.");
+ cmdlines = c->user_commands;
+ if (cmdlines == 0)
/* Null command */
return;
+
+ /* Set the instream to 0, indicating execution of a
+ user-defined function. */
+ old_chain = make_cleanup (source_cleanup, instream);
+ instream = (FILE *) 0;
while (cmdlines)
{
execute_command (cmdlines->line, 0);
cmdlines = cmdlines->next;
}
+ do_cleanups (old_chain);
}
+ else if (c->type == set_cmd || c->type == show_cmd)
+ do_setshow_command (arg, from_tty & caution, c);
+ else if (c->function == NO_FUNCTION)
+ error ("That is not a command, just a help topic.");
else
- /* Pass null arg rather than an empty one. */
- (*c->function) (*p ? p : 0, from_tty);
+ (*c->function) (arg, from_tty & caution);
}
}
-static void
-do_nothing ()
+/* ARGSUSED */
+void
+command_loop_marker (foo)
+ int foo;
{
}
/* Read commands from `instream' and execute them
- until end of file. */
+ until end of file or error reading instream. */
void
command_loop ()
{
struct cleanup *old_chain;
+ char *command;
+ int stdin_is_tty = ISATTY (stdin);
+
while (!feof (instream))
{
- if (instream == stdin)
- printf ("%s", prompt);
- fflush (stdout);
-
if (window_hook && instream == stdin)
(*window_hook) (instream, prompt);
quit_flag = 0;
- old_chain = make_cleanup (do_nothing, 0);
- execute_command (read_line (instream == stdin), instream == stdin);
+ if (instream == stdin && stdin_is_tty)
+ reinitialize_more_filter ();
+ old_chain = make_cleanup (command_loop_marker, 0);
+ command = command_line_input (instream == stdin ? prompt : 0,
+ instream == stdin);
+ if (command == 0)
+ return;
+ execute_command (command, instream == stdin);
/* Do any commands attached to breakpoint we stopped at. */
- do_breakpoint_commands ();
+ bpstat_do_actions (&stop_bpstat);
do_cleanups (old_chain);
}
}
-\f
+\f
+/* Commands call this if they do not want to be repeated by null lines. */
+
+void
+dont_repeat ()
+{
+ /* If we aren't reading from standard input, we are saving the last
+ thing read from stdin in line and don't want to delete it. Null lines
+ won't repeat here in any case. */
+ if (instream == stdin)
+ *line = 0;
+}
+\f
+/* Read a line from the stream "instream" without command line editing.
+
+ It prints PRROMPT once at the start.
+
+ If RETURN_RESULT is set it allocates
+ space for whatever the user types and returns the result.
+ If not, it just discards what the user types and returns a garbage
+ non-NULL value.
+
+ No matter what return_result is, a NULL return means end of file. */
+char *
+gdb_readline (prrompt, return_result)
+ char *prrompt;
+ int return_result;
+{
+ int c;
+ char *result;
+ int input_index = 0;
+ int result_size = 80;
+
+ if (prrompt)
+ {
+ printf (prrompt);
+ fflush (stdout);
+ }
+
+ if (return_result)
+ result = (char *) xmalloc (result_size);
+
+ while (1)
+ {
+ /* Read from stdin if we are executing a user defined command.
+ This is the right thing for prompt_for_continue, at least. */
+ c = fgetc (instream ? instream : stdin);
+ if (c == EOF || c == '\n')
+ break;
+ if (return_result)
+ {
+ result[input_index++] = c;
+ while (input_index >= result_size)
+ {
+ result_size *= 2;
+ result = (char *) xrealloc (result, result_size);
+ }
+ }
+ }
+
+ if (c == EOF)
+ {
+ if (return_result)
+ free (result);
+ return NULL;
+ }
+
+ if (return_result)
+ {
+ result[input_index++] = '\0';
+ return result;
+ }
+ else
+ /* Return any old non-NULL pointer. */
+ return (char *) "non-NULL";
+}
+
+/* Declaration for fancy readline with command line editing. */
+char *readline ();
+
+/* Variables which control command line editing and history
+ substitution. These variables are given default values at the end
+ of this file. */
+static int command_editing_p;
+static int history_expansion_p;
+static int write_history_p;
+static int history_size;
+static char *history_filename;
+
+/* Variables which are necessary for fancy command line editing. */
+char *gdb_completer_word_break_characters =
+ " \t\n!@#$%^&*()-+=|~`}{[]\"';:?/>.<,";
+
+/* Functions that are used as part of the fancy command line editing. */
+
+/* This can be used for functions which don't want to complete on symbols
+ but don't want to complete on anything else either. */
+/* ARGSUSED */
+char **
+noop_completer (text)
+ char *text;
+{
+ return NULL;
+}
+
+/* Generate symbol names one by one for the completer. If STATE is
+ zero, then we need to initialize, otherwise the initialization has
+ already taken place. TEXT is what we expect the symbol to start
+ with. RL_LINE_BUFFER is available to be looked at; it contains the
+ entire text of the line. RL_POINT is the offset in that line of
+ the cursor. You should pretend that the line ends at RL_POINT.
+ The result is NULL if there are no more completions, else a char
+ string which is a possible completion. */
+char *
+symbol_completion_function (text, state)
+ char *text;
+ int state;
+{
+ static char **list = (char **)NULL;
+ static int index;
+ char *output;
+ extern char *rl_line_buffer;
+ extern int rl_point;
+ char *tmp_command, *p;
+ struct cmd_list_element *c, *result_list;
+
+ if (!state)
+ {
+ /* Free the storage used by LIST, but not by the strings inside. This is
+ because rl_complete_internal () frees the strings. */
+ if (list)
+ free (list);
+ list = 0;
+ index = 0;
+
+ /* Decide whether to complete on a list of gdb commands or on
+ symbols. */
+ tmp_command = (char *) alloca (rl_point + 1);
+ p = tmp_command;
+
+ strncpy (tmp_command, rl_line_buffer, rl_point);
+ tmp_command[rl_point] = '\0';
+
+ if (rl_point == 0)
+ {
+ /* An empty line we want to consider ambiguous; that is,
+ it could be any command. */
+ c = (struct cmd_list_element *) -1;
+ result_list = 0;
+ }
+ else
+ c = lookup_cmd_1 (&p, cmdlist, &result_list, 1);
+
+ /* Move p up to the next interesting thing. */
+ while (*p == ' ' || *p == '\t')
+ p++;
+
+ if (!c)
+ /* He's typed something unrecognizable. Sigh. */
+ list = (char **) 0;
+ else if (c == (struct cmd_list_element *) -1)
+ {
+ /* If we didn't recognize everything up to the thing that
+ needs completing, and we don't know what command it is
+ yet, we are in trouble. Part of the trouble might be
+ that the list of delimiters used by readline includes
+ '-', which we use in commands. Check for this. */
+ if (p + strlen(text) != tmp_command + rl_point) {
+ if (tmp_command[rl_point - strlen(text) - 1] == '-')
+ text = p;
+ else {
+ /* This really should not produce an error. Better would
+ be to pretend to hit RETURN here; this would produce a
+ response like "Ambiguous command: foo, foobar, etc",
+ and leave the line available for re-entry with ^P. Instead,
+ this error blows away the user's typed input without
+ any way to get it back. */
+ error (" Unrecognized command.");
+ }
+ }
+
+ /* He's typed something ambiguous. This is easier. */
+ if (result_list)
+ list = complete_on_cmdlist (*result_list->prefixlist, text);
+ else
+ list = complete_on_cmdlist (cmdlist, text);
+ }
+ else
+ {
+ /* If we've gotten this far, gdb has recognized a full
+ command. There are several possibilities:
+
+ 1) We need to complete on the command.
+ 2) We need to complete on the possibilities coming after
+ the command.
+ 2) We need to complete the text of what comes after the
+ command. */
+
+ if (!*p && *text)
+ /* Always (might be longer versions of thie command). */
+ list = complete_on_cmdlist (result_list, text);
+ else if (!*p && !*text)
+ {
+ if (c->prefixlist)
+ list = complete_on_cmdlist (*c->prefixlist, "");
+ else
+ list = (*c->completer) ("");
+ }
+ else
+ {
+ if (c->prefixlist && !c->allow_unknown)
+ {
+#if 0
+ /* Something like "info adsfkdj". But error() is not
+ the proper response; just return no completions
+ instead. */
+ *p = '\0';
+ error ("\"%s\" command requires a subcommand.",
+ tmp_command);
+#else
+ list = NULL;
+#endif
+ }
+ else
+ list = (*c->completer) (text);
+ }
+ }
+ }
+
+ /* If the debugged program wasn't compiled with symbols, or if we're
+ clearly completing on a command and no command matches, return
+ NULL. */
+ if (!list)
+ return ((char *)NULL);
+
+ output = list[index];
+ if (output)
+ index++;
+
+ return (output);
+}
+\f
+#ifdef STOP_SIGNAL
+static void
+stop_sig ()
+{
+#if STOP_SIGNAL == SIGTSTP
+ signal (SIGTSTP, SIG_DFL);
+ sigsetmask (0);
+ kill (getpid (), SIGTSTP);
+ signal (SIGTSTP, stop_sig);
+#else
+ signal (STOP_SIGNAL, stop_sig);
+#endif
+ printf ("%s", prompt);
+ fflush (stdout);
+
+ /* Forget about any previous command -- null line now will do nothing. */
+ dont_repeat ();
+}
+#endif /* STOP_SIGNAL */
+
+#if 0
+Writing the history file upon a terminating signal is not useful,
+ because the info is rarely relevant and is in the core dump anyway.
+ It is an annoyance to have the file cluttering up the place.
+/* The list of signals that would terminate us if not caught.
+ We catch them, but just so that we can write the history file,
+ and so forth. */
+int terminating_signals[] = {
+ SIGHUP, SIGINT, SIGILL, SIGTRAP, SIGIOT,
+ SIGEMT, SIGFPE, SIGKILL, SIGBUS, SIGSEGV, SIGSYS,
+ SIGPIPE, SIGALRM, SIGTERM,
+#ifdef SIGXCPU
+ SIGXCPU,
+#endif
+#ifdef SIGXFSZ
+ SIGXFSZ,
+#endif
+#ifdef SIGVTALRM
+ SIGVTALRM,
+#endif
+#ifdef SIGPROF
+ SIGPROF,
+#endif
+#ifdef SIGLOST
+ SIGLOST,
+#endif
+#ifdef SIGUSR1
+ SIGUSR1, SIGUSR2
+#endif
+ };
+
+#define TERMSIGS_LENGTH (sizeof (terminating_signals) / sizeof (int))
+
+static void
+catch_termination (sig)
+ int sig;
+{
+ /* We are probably here because GDB has a bug. Write out the history
+ so that we might have a better chance of reproducing it. */
+ /* Tell the user what we are doing so he can delete the file if
+ it is unwanted. */
+ write_history (history_filename);
+ printf ("\n%s written.\n", history_filename);
+ signal (sig, SIG_DFL);
+ kill (getpid (), sig);
+}
+#endif
+
+/* Initialize signal handlers. */
+static void
+do_nothing ()
+{
+}
+
static void
-stop_sig ()
+init_signals ()
{
- signal (SIGTSTP, SIG_DFL);
- sigsetmask (0);
- kill (getpid (), SIGTSTP);
- signal (SIGTSTP, stop_sig);
- printf ("%s", prompt);
- fflush (stdout);
+ extern void request_quit ();
+#if 0
+ register int i;
- /* Forget about any previous command -- null line now will do nothing. */
- *line = 0;
-}
+ for (i = 0; i < TERMSIGS_LENGTH; i++)
+ signal (terminating_signals[i], catch_termination);
+#endif
-/* Commands call this if they do not want to be repeated by null lines. */
+ signal (SIGINT, request_quit);
-void
-dont_repeat ()
-{
- *line = 0;
+ /* If we initialize SIGQUIT to SIG_IGN, then the SIG_IGN will get
+ passed to the inferior, which we don't want. It would be
+ possible to do a "signal (SIGQUIT, SIG_DFL)" after we fork, but
+ on BSD4.3 systems using vfork, that will (apparently) affect the
+ GDB process as well as the inferior (the signal handling tables
+ being shared between the two, apparently). Since we establish
+ a handler for SIGQUIT, when we call exec it will set the signal
+ to SIG_DFL for us. */
+ signal (SIGQUIT, do_nothing);
+ if (signal (SIGHUP, do_nothing) != SIG_IGN)
+ signal (SIGHUP, disconnect);
+ signal (SIGFPE, float_handler);
}
-
+\f
/* Read one line from the command input stream `instream'
- into the buffer `line' (whose current length is `linesize').
+ into the local static buffer `linebuffer' (whose current length
+ is `linelength').
The buffer is made bigger as necessary.
- Returns the address of the start of the line. */
+ Returns the address of the start of the line.
+
+ NULL is returned for end of file.
+
+ *If* the instream == stdin & stdin is a terminal, the line read
+ is copied into the file line saver (global var char *line,
+ length linesize) so that it can be duplicated.
+
+ This routine either uses fancy command line editing or
+ simple input as the user has requested. */
char *
-read_line (repeat)
+command_line_input (prrompt, repeat)
+ char *prrompt;
int repeat;
{
- register char *p = line;
- register char *p1;
+ static char *linebuffer = 0;
+ static int linelength = 0;
+ register char *p;
+ char *p1;
+ char *rl;
+ char *local_prompt = prrompt;
register int c;
char *nline;
+ char got_eof = 0;
+
+ if (linebuffer == 0)
+ {
+ linelength = 80;
+ linebuffer = (char *) xmalloc (linelength);
+ }
+
+ p = linebuffer;
/* Control-C quits instantly if typed while in this loop
since it should not wait until the user types a newline. */
immediate_quit++;
- signal (SIGTSTP, stop_sig);
+#ifdef STOP_SIGNAL
+ signal (STOP_SIGNAL, stop_sig);
+#endif
while (1)
{
- c = fgetc (instream);
- if (c == -1 || c == '\n')
- break;
- if (p - line == linesize - 1)
+ /* Don't use fancy stuff if not talking to stdin. */
+ if (command_editing_p && instream == stdin
+ && ISATTY (instream))
+ rl = readline (local_prompt);
+ else
+ rl = gdb_readline (local_prompt, 1);
+
+ if (!rl || rl == (char *) EOF)
{
- linesize *= 2;
- nline = (char *) xrealloc (line, linesize);
- p += nline - line;
- line = nline;
+ got_eof = 1;
+ break;
}
- *p++ = c;
- }
+ if (strlen(rl) + 1 + (p - linebuffer) > linelength)
+ {
+ linelength = strlen(rl) + 1 + (p - linebuffer);
+ nline = (char *) xrealloc (linebuffer, linelength);
+ p += nline - linebuffer;
+ linebuffer = nline;
+ }
+ p1 = rl;
+ /* Copy line. Don't copy null at end. (Leaves line alone
+ if this was just a newline) */
+ while (*p1)
+ *p++ = *p1++;
+ free (rl); /* Allocated in readline. */
+
+ if (p == linebuffer || *(p - 1) != '\\')
+ break;
+
+ p--; /* Put on top of '\'. */
+ local_prompt = (char *) 0;
+ }
+
+#ifdef STOP_SIGNAL
signal (SIGTSTP, SIG_DFL);
+#endif
immediate_quit--;
- /* If we just got an empty line, and that is supposed
- to repeat the previous command, leave the last input unchanged. */
- if (p == line && repeat)
- return line;
+ if (got_eof)
+ return NULL;
+
+ /* Do history expansion if that is wished. */
+ if (history_expansion_p && instream == stdin
+ && ISATTY (instream))
+ {
+ char *history_value;
+ int expanded;
+
+ *p = '\0'; /* Insert null now. */
+ expanded = history_expand (linebuffer, &history_value);
+ if (expanded)
+ {
+ /* Print the changes. */
+ printf ("%s\n", history_value);
+
+ /* If there was an error, call this function again. */
+ if (expanded < 0)
+ {
+ free (history_value);
+ return command_line_input (prrompt, repeat);
+ }
+ if (strlen (history_value) > linelength)
+ {
+ linelength = strlen (history_value) + 1;
+ linebuffer = (char *) xrealloc (linebuffer, linelength);
+ }
+ strcpy (linebuffer, history_value);
+ p = linebuffer + strlen(linebuffer);
+ free (history_value);
+ }
+ }
- /* If line is a comment, clear it out. */
- p1 = line;
- while ((c = *p1) == ' ' || c == '\t') p1++;
- if (c == '#')
- p = line;
+ /* If we just got an empty line, and that is supposed
+ to repeat the previous command, return the value in the
+ global buffer. */
+ if (repeat)
+ {
+ if (p == linebuffer)
+ return line;
+ p1 = linebuffer;
+ while (*p1 == ' ' || *p1 == '\t')
+ p1++;
+ if (!*p1)
+ return line;
+ }
*p = 0;
- return line;
+ /* Add line to history if appropriate. */
+ if (instream == stdin
+ && ISATTY (stdin) && *linebuffer)
+ add_history (linebuffer);
+
+ /* Note: lines consisting soley of comments are added to the command
+ history. This is useful when you type a command, and then
+ realize you don't want to execute it quite yet. You can comment
+ out the command and then later fetch it from the value history
+ and remove the '#'. The kill ring is probably better, but some
+ people are in the habit of commenting things out. */
+ p1 = linebuffer;
+ while ((c = *p1++) != '\0')
+ {
+ if (c == '"')
+ while ((c = *p1++) != '"')
+ {
+ /* Make sure an escaped '"' doesn't make us think the string
+ is ended. */
+ if (c == '\\')
+ parse_escape (&p1);
+ if (c == '\0')
+ break;
+ }
+ else if (c == '\'')
+ while ((c = *p1++) != '\'')
+ {
+ /* Make sure an escaped '\'' doesn't make us think the string
+ is ended. */
+ if (c == '\\')
+ parse_escape (&p1);
+ if (c == '\0')
+ break;
+ }
+ else if (c == '#')
+ {
+ /* Found a comment. */
+ p1[-1] = '\0';
+ break;
+ }
+ }
+
+ /* Save into global buffer if appropriate. */
+ if (repeat)
+ {
+ if (linelength > linesize)
+ {
+ line = xrealloc (line, linelength);
+ linesize = linelength;
+ }
+ strcpy (line, linebuffer);
+ return line;
+ }
+
+ return linebuffer;
}
\f
/* Read lines from the input stream
while (1)
{
dont_repeat ();
- p = read_line (1);
+ p = command_line_input (0, instream == stdin);
+ if (p == NULL)
+ /* Treat end of file like "end". */
+ break;
+
/* Remove leading and trailing blanks. */
while (*p == ' ' || *p == '\t') p++;
p1 = p + strlen (p);
void (*fun) ();
char *doc;
{
- add_cmd (name, 0, fun, doc, &infolist);
+ add_cmd (name, no_class, fun, doc, &infolist);
}
/* Add an alias to the list of info subcommands. */
/* The "info" command is defined as a prefix, with allow_unknown = 0.
Therefore, its own definition is called only for "info" with no args. */
+/* ARGSUSED */
static void
-info_command ()
+info_command (arg, from_tty)
+ char *arg;
+ int from_tty;
{
printf ("\"info\" must be followed by the name of an info command.\n");
- help_cmd (0, infolist, "info ", -1, stdout);
+ help_list (infolist, "info ", -1, stdout);
+}
+
+/* The "show" command with no arguments shows all the settings. */
+
+/* ARGSUSED */
+static void
+show_command (arg, from_tty)
+ char *arg;
+ int from_tty;
+{
+ cmd_show_list (showlist, from_tty, "");
}
\f
/* Add an element to the list of commands. */
void
add_com (name, class, fun, doc)
char *name;
- int class;
+ enum command_class class;
void (*fun) ();
char *doc;
{
add_com_alias (name, oldname, class, abbrev_flag)
char *name;
char *oldname;
- int class;
+ enum command_class class;
int abbrev_flag;
{
add_alias_cmd (name, oldname, class, abbrev_flag, &cmdlist);
error ("Argument required (%s).", why);
}
+/* ARGSUSED */
static void
help_command (command, from_tty)
char *command;
int from_tty; /* Ignored */
{
- help_cmd (command, cmdlist, "", -2, stdout);
+ help_cmd (command, stdout);
}
\f
static void
{
if (!(*p >= 'A' && *p <= 'Z')
&& !(*p >= 'a' && *p <= 'z')
- && !(*p >= '1' && *p <= '9')
+ && !(*p >= '0' && *p <= '9')
&& *p != '-')
error ("Junk in argument list: \"%s\"", p);
p++;
int from_tty;
{
register struct command_line *cmds;
- register struct cmd_list_element *c;
+ register struct cmd_list_element *c, *newc;
char *tem = comname;
+ extern void not_just_help_class_command ();
validate_comname (comname);
- c = lookup_cmd (&tem, cmdlist, "", -1);
+ c = lookup_cmd (&tem, cmdlist, "", -1, 1);
if (c)
{
- if (c->class == (int) class_user || c->class == (int) class_alias)
+ if (c->class == class_user || c->class == class_alias)
tem = "Redefine command \"%s\"? ";
else
tem = "Really redefine built-in command \"%s\"? ";
}
if (from_tty)
- printf ("Type commands for definition of \"%s\".\n\
+ {
+ printf ("Type commands for definition of \"%s\".\n\
End with a line saying just \"end\".\n", comname);
-
+ fflush (stdout);
+ }
comname = savestring (comname, strlen (comname));
cmds = read_command_lines ();
- if (c && c->class == (int) class_user)
- free_command_lines (&c->function);
+ if (c && c->class == class_user)
+ free_command_lines (&c->user_commands);
- add_com (comname, class_user, cmds,
- (c && c->class == (int) class_user)
- ? c->doc : savestring ("User-defined.", 13));
+ newc = add_cmd (comname, class_user, not_just_help_class_command,
+ (c && c->class == class_user)
+ ? c->doc : savestring ("User-defined.", 13), &cmdlist);
+ newc->user_commands = cmds;
}
static void
validate_comname (comname);
- c = lookup_cmd (&tem, cmdlist, "", 0);
+ c = lookup_cmd (&tem, cmdlist, "", 0, 1);
- if (c->class != (int) class_user)
+ if (c->class != class_user)
error ("Command \"%s\" is built-in.", comname);
if (from_tty)
}
\f
static void
-copying_info ()
-{
- immediate_quit++;
- printf (" GDB GENERAL PUBLIC LICENSE\n\
-\n\
- Copyright (C) 1986 Richard M. Stallman\n\
- Everyone is permitted to copy and distribute verbatim copies\n\
- of this license, but changing it is not allowed.\n\
-\n\
- The license agreements of most software companies keep you at the\n\
-mercy of those companies. By contrast, our general public license is\n\
-intended to give everyone the right to share GDB. To make sure that\n\
-you get the rights we want you to have, we need to make restrictions\n\
-that forbid anyone to deny you these rights or to ask you to surrender\n\
-the rights. Hence this license agreement.\n\
-\n\
- Specifically, we want to make sure that you have the right to give\n\
-away copies of GDB, that you receive source code or else can get it\n\
-if you want it, that you can change GDB or use pieces of it in new\n\
-free programs, and that you know you can do these things.\n\
---Type Return to print more--");
- fflush (stdout);
- read_line ();
-
- printf ("\
- To make sure that everyone has such rights, we have to forbid you to\n\
-deprive anyone else of these rights. For example, if you distribute\n\
-copies of GDB, you must give the recipients all the rights that you\n\
-have. You must make sure that they, too, receive or can get the\n\
-source code. And you must tell them their rights.\n\
-\n\
- Also, for our own protection, we must make certain that everyone\n\
-finds out that there is no warranty for GDB. If GDB is modified by\n\
-someone else and passed on, we want its recipients to know that what\n\
-they have is not what we distributed, so that any problems introduced\n\
-by others will not reflect on our reputation.\n\
-\n\
- Therefore we (Richard Stallman and the Free Software Foundation,\n\
-Inc.) make the following terms which say what you must do to be\n\
-allowed to distribute or change GDB.\n\
---Type Return to print more--");
- fflush (stdout);
- read_line ();
-
- printf ("\
- COPYING POLICIES\n\
-\n\
- 1. You may copy and distribute verbatim copies of GDB source code as\n\
-you receive it, in any medium, provided that you conspicuously and\n\
-appropriately publish on each copy a valid copyright notice \"Copyright\n\
-\(C) 1987 Free Software Foundation, Inc.\" (or with the year updated if\n\
-that is appropriate); keep intact the notices on all files that refer\n\
-to this License Agreement and to the absence of any warranty; and give\n\
-any other recipients of the GDB program a copy of this License\n\
-Agreement along with the program. You may charge a distribution fee\n\
-for the physical act of transferring a copy.\n\
-\n\
- 2. You may modify your copy or copies of GDB or any portion of it,\n\
-and copy and distribute such modifications under the terms of\n\
-Paragraph 1 above, provided that you also do the following:\n\
-\n\
- a) cause the modified files to carry prominent notices stating\n\
- that you changed the files and the date of any change; and\n\
---Type Return to print more--");
- fflush (stdout);
- read_line ();
-
- printf ("\
- b) cause the whole of any work that you distribute or publish,\n\
- that in whole or in part contains or is a derivative of GDB\n\
- or any part thereof, to be licensed to all third parties on terms\n\
- identical to those contained in this License Agreement (except that\n\
- you may choose to grant more extensive warranty protection to third\n\
- parties, at your option).\n\
-\n");
- printf ("\
- c) if the modified program serves as a debugger, cause it\n\
- when started running in the simplest and usual way, to print\n\
- an announcement including a valid copyright notice\n\
- \"Copyright (C) 1987 Free Software Foundation, Inc.\" (or with\n\
- the year updated if appropriate), saying that there\n\
- is no warranty (or else, saying that you provide\n\
- a warranty) and that users may redistribute the program under\n\
- these conditions, and telling the user how to view a copy of\n\
- this License Agreement.\n\
-\n\
- d) You may charge a distribution fee for the physical act of\n\
- transferring a copy, and you may at your option offer warranty\n\
- protection in exchange for a fee.\n\
---Type Return to print more--");
- fflush (stdout);
- read_line ();
-
- printf ("\
- 3. You may copy and distribute GDB or any portion of it in\n\
-compiled, executable or object code form under the terms of Paragraphs\n\
-1 and 2 above provided that you do the following:\n\
-\n\
- a) cause each such copy to be accompanied by the\n\
- corresponding machine-readable source code, which must\n\
- be distributed under the terms of Paragraphs 1 and 2 above; or,\n\
-\n\
- b) cause each such copy to be accompanied by a\n\
- written offer, with no time limit, to give any third party\n\
- free (except for a nominal shipping charge) a machine readable\n\
- copy of the corresponding source code, to be distributed\n\
- under the terms of Paragraphs 1 and 2 above; or,\n\n");
-
- printf ("\
- c) in the case of a recipient of GDB in compiled, executable\n\
- or object code form (without the corresponding source code) you\n\
- shall cause copies you distribute to be accompanied by a copy\n\
- of the written offer of source code which you received along\n\
- with the copy you received.\n\
---Type Return to print more--");
- fflush (stdout);
- read_line ();
-
- printf ("\
- 4. You may not copy, sublicense, distribute or transfer GDB\n\
-except as expressly provided under this License Agreement. Any attempt\n\
-otherwise to copy, sublicense, distribute or transfer GDB is void and\n\
-your rights to use the program under this License agreement shall be\n\
-automatically terminated. However, parties who have received computer\n\
-software programs from you with this License Agreement will not have\n\
-their licenses terminated so long as such parties remain in full compliance.\n\
-\n\
- 5. If you wish to incorporate parts of GDB into other free\n\
-programs whose distribution conditions are different, write to the Free\n\
-Software Foundation at 675 Mass Ave, Cambridge, MA 02139. We have not yet\n\
-worked out a simple rule that can be stated here, but we will often permit\n\
-this. We will be guided by the two goals of preserving the free status of\n\
-all derivatives of our free software and of promoting the sharing and reuse\n\
-of software.\n\
-\n\
-In other words, go ahead and share GDB, but don't try to stop\n\
-anyone else from sharing it farther. Help stamp out software hoarding!\n\
-");
- immediate_quit--;
-}
-
-static void
-warranty_info ()
-{
- immediate_quit++;
- printf (" NO WARRANTY\n\
-\n\
- BECAUSE GDB IS LICENSED FREE OF CHARGE, WE PROVIDE ABSOLUTELY NO\n\
-WARRANTY, TO THE EXTENT PERMITTED BY APPLICABLE STATE LAW. EXCEPT\n\
-WHEN OTHERWISE STATED IN WRITING, FREE SOFTWARE FOUNDATION, INC,\n\
-RICHARD M. STALLMAN AND/OR OTHER PARTIES PROVIDE GDB \"AS IS\" WITHOUT\n\
-WARRANTY OF ANY KIND, EITHER EXPRESSED OR IMPLIED, INCLUDING, BUT NOT\n\
-LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR\n\
-A PARTICULAR PURPOSE. THE ENTIRE RISK AS TO THE QUALITY AND\n\
-PERFORMANCE OF GDB IS WITH YOU. SHOULD GDB PROVE DEFECTIVE, YOU\n\
-ASSUME THE COST OF ALL NECESSARY SERVICING, REPAIR OR CORRECTION.\n\n");
-
- printf ("\
- IN NO EVENT UNLESS REQUIRED BY APPLICABLE LAW WILL RICHARD M.\n\
-STALLMAN, THE FREE SOFTWARE FOUNDATION, INC., AND/OR ANY OTHER PARTY\n\
-WHO MAY MODIFY AND REDISTRIBUTE GDB, BE LIABLE TO\n\
-YOU FOR DAMAGES, INCLUDING ANY LOST PROFITS, LOST MONIES, OR OTHER\n\
-SPECIAL, INCIDENTAL OR CONSEQUENTIAL DAMAGES ARISING OUT OF THE USE OR\n\
-INABILITY TO USE (INCLUDING BUT NOT LIMITED TO LOSS OF DATA OR DATA\n\
-BEING RENDERED INACCURATE OR LOSSES SUSTAINED BY THIRD PARTIES OR A\n\
-FAILURE OF THE PROGRAM TO OPERATE WITH ANY OTHER PROGRAMS) GDB, EVEN\n\
-IF YOU HAVE BEEN ADVISED OF THE POSSIBILITY OF SUCH DAMAGES, OR FOR\n\
-ANY CLAIM BY ANY OTHER PARTY.\n");
- immediate_quit--;
-}
-\f
-static void
-print_gdb_version ()
+print_gdb_version (shout)
+ int shout;
{
- printf ("GDB %s, Copyright (C) 1987 Free Software Foundation, Inc.\n\
+ printf ("GDB %s, Copyright (C) 1991 Free Software Foundation, Inc.\n",
+ version);
+ if (shout)
+ printf ("\
There is ABSOLUTELY NO WARRANTY for GDB; type \"info warranty\" for details.\n\
GDB is free software and you are welcome to distribute copies of it\n\
- under certain conditions; type \"info copying\" to see the conditions.\n",
- version);
+ under certain conditions; type \"info copying\" to see the conditions.\n");
}
+/* ARGSUSED */
static void
-version_info ()
+show_version (args, from_tty)
+ char *args;
+ int from_tty;
{
immediate_quit++;
- print_gdb_version ();
+ print_gdb_version (0);
immediate_quit--;
}
\f
-static void
-set_prompt_command (text)
- char *text;
-{
- char *p, *q;
- register int c;
- char *new;
+/* xgdb calls this to reprint the usual GDB prompt. */
- if (text == 0)
- error_no_arg ("string to which to set prompt");
-
- new = (char *) xmalloc (strlen (text) + 2);
- p = text; q = new;
- while (c = *p++)
- {
- if (c == '\\')
- {
- /* \ at end of argument is used after spaces
- so they won't be lost. */
- if (*p == 0)
- break;
- c = parse_escape (&p);
- if (c == 0)
- break; /* C loses */
- else if (c > 0)
- *q++ = c;
- }
- else
- *q++ = c;
- }
- if (*(p - 1) != '\\')
- *q++ = ' ';
- *q++ = '\0';
- new = (char *) xrealloc (new, q - new);
- free (prompt);
- prompt = new;
+void
+print_prompt ()
+{
+ printf ("%s", prompt);
+ fflush (stdout);
}
\f
static void
-quit_command ()
+quit_command (args, from_tty)
+ char *args;
+ int from_tty;
{
- if (have_inferior_p ())
+ if (inferior_pid != 0 && target_has_execution)
{
if (query ("The program is running. Quit anyway? "))
{
- /* Prevent any warning message from reopen_exec_file, in case
- we have a core file that's inconsistent with the exec file. */
- exec_file_command (0, 0);
- kill_inferior ();
+ target_kill (args, from_tty);
}
else
error ("Not confirmed.");
}
+ /* Save the history information if it is appropriate to do so. */
+ if (write_history_p && history_filename)
+ write_history (history_filename);
exit (0);
}
int
input_from_terminal_p ()
{
- return instream == stdin;
+ return (instream == stdin) & caution;
}
\f
+/* ARGSUSED */
static void
-pwd_command (arg, from_tty)
- char *arg;
+pwd_command (args, from_tty)
+ char *args;
int from_tty;
{
- char buf[MAXPATHLEN];
- if (arg) error ("The \"pwd\" command does not take an argument: %s", arg);
- printf ("Working directory %s.\n", getwd (buf));
+ if (args) error ("The \"pwd\" command does not take an argument: %s", args);
+ getwd (dirbuf);
+
+ if (strcmp (dirbuf, current_directory))
+ printf ("Working directory %s\n (canonically %s).\n",
+ current_directory, dirbuf);
+ else
+ printf ("Working directory %s.\n", current_directory);
}
static void
char *dir;
int from_tty;
{
+ int len;
+ int change;
+
+ /* If the new directory is absolute, repeat is a no-op; if relative,
+ repeat might be useful but is more likely to be a mistake. */
+ dont_repeat ();
+
if (dir == 0)
error_no_arg ("new working directory");
+ dir = tilde_expand (dir);
+ make_cleanup (free, dir);
+
+ len = strlen (dir);
+ dir = savestring (dir, len - (len > 1 && dir[len-1] == '/'));
+ if (dir[0] == '/')
+ current_directory = dir;
+ else
+ {
+ current_directory = concat (current_directory, "/", dir);
+ free (dir);
+ }
+
+ /* Now simplify any occurrences of `.' and `..' in the pathname. */
+
+ change = 1;
+ while (change)
+ {
+ char *p;
+ change = 0;
+
+ for (p = current_directory; *p;)
+ {
+ if (!strncmp (p, "/./", 2)
+ && (p[2] == 0 || p[2] == '/'))
+ strcpy (p, p + 2);
+ else if (!strncmp (p, "/..", 3)
+ && (p[3] == 0 || p[3] == '/')
+ && p != current_directory)
+ {
+ char *q = p;
+ while (q != current_directory && q[-1] != '/') q--;
+ if (q != current_directory)
+ {
+ strcpy (q-1, p+3);
+ p = q-1;
+ }
+ }
+ else p++;
+ }
+ }
+
if (chdir (dir) < 0)
perror_with_name (dir);
+
+ forget_cached_source_info ();
+
if (from_tty)
pwd_command ((char *) 0, 1);
}
-
\f
-/* Clean up on error during a "source" command.
- Close the file opened by the command
- and restore the previous input stream. */
-
-static void
-source_cleanup (stream)
- FILE *stream;
-{
- fclose (instream);
- instream = stream;
-}
-
+/* ARGSUSED */
static void
-source_command (file)
- char *file;
+source_command (args, from_tty)
+ char *args;
+ int from_tty;
{
FILE *stream;
struct cleanup *cleanups;
+ char *file = args;
if (file == 0)
- error_no_arg ("file to read commands from");
+ /* Let source without arguments read .gdbinit. */
+ file = gdbinit;
+
+ file = tilde_expand (file);
+ make_cleanup (free, file);
stream = fopen (file, "r");
if (stream == 0)
perror_with_name (file);
- cleanups = make_cleanup (source_cleanup, instream);
-
- instream = stream;
+ cleanups = make_cleanup (fclose, stream);
- command_loop ();
+ read_command_file (stream);
do_cleanups (cleanups);
}
+/* ARGSUSED */
static void
-echo_command (text)
+echo_command (text, from_tty)
char *text;
+ int from_tty;
{
char *p = text;
register int c;
else
fputc (c, stdout);
}
+ fflush (stdout);
}
+/* ARGSUSED */
static void
-dump_me_command ()
+dump_me_command (args, from_tty)
+ char *args;
+ int from_tty;
{
if (query ("Should GDB dump core? "))
{
kill (getpid (), SIGQUIT);
}
}
+\f
+/* Functions to manipulate command line editing control variables. */
+
+/* Number of commands to print in each call to show_commands. */
+#define Hist_print 10
+static void
+show_commands (args, from_tty)
+ char *args;
+ int from_tty;
+{
+ /* Index for history commands. Relative to history_base. */
+ int offset;
+
+ /* Number of the history entry which we are planning to display next.
+ Relative to history_base. */
+ static int num = 0;
+
+ /* The first command in the history which doesn't exist (i.e. one more
+ than the number of the last command). Relative to history_base. */
+ int hist_len;
+
+ struct _hist_entry *history_get();
+ extern int history_base;
+
+#if 0
+ /* This is all reported by individual "show" commands. */
+ printf_filtered ("Interactive command editing is %s.\n",
+ command_editing_p ? "on" : "off");
+
+ printf_filtered ("History expansion of command input is %s.\n",
+ history_expansion_p ? "on" : "off");
+ printf_filtered ("Writing of a history record upon exit is %s.\n",
+ write_history_p ? "enabled" : "disabled");
+ printf_filtered ("The size of the history list (number of stored commands) is %d.\n",
+ history_size);
+ printf_filtered ("The name of the history record is \"%s\".\n\n",
+ history_filename ? history_filename : "");
+#endif /* 0 */
+
+ /* Print out some of the commands from the command history. */
+ /* First determine the length of the history list. */
+ hist_len = history_size;
+ for (offset = 0; offset < history_size; offset++)
+ {
+ if (!history_get (history_base + offset))
+ {
+ hist_len = offset;
+ break;
+ }
+ }
+
+ if (args)
+ {
+ if (args[0] == '+' && args[1] == '\0')
+ /* "info editing +" should print from the stored position. */
+ ;
+ else
+ /* "info editing <exp>" should print around command number <exp>. */
+ num = (parse_and_eval_address (args) - history_base) - Hist_print / 2;
+ }
+ /* "info editing" means print the last Hist_print commands. */
+ else
+ {
+ num = hist_len - Hist_print;
+ }
+
+ if (num < 0)
+ num = 0;
+
+ /* If there are at least Hist_print commands, we want to display the last
+ Hist_print rather than, say, the last 6. */
+ if (hist_len - num < Hist_print)
+ {
+ num = hist_len - Hist_print;
+ if (num < 0)
+ num = 0;
+ }
+
+#if 0
+ /* No need for a header now that "info editing" only prints one thing. */
+ if (num == hist_len - Hist_print)
+ printf_filtered ("The list of the last %d commands is:\n\n", Hist_print);
+ else
+ printf_filtered ("Some of the stored commands are:\n\n");
+#endif /* 0 */
+
+ for (offset = num; offset < num + Hist_print && offset < hist_len; offset++)
+ {
+ printf_filtered ("%5d %s\n", history_base + offset,
+ (history_get (history_base + offset))->line);
+ }
+
+ /* The next command we want to display is the next one that we haven't
+ displayed yet. */
+ num += Hist_print;
+
+ /* If the user repeats this command with return, it should do what
+ "info editing +" does. This is unnecessary if arg is null,
+ because "info editing +" is not useful after "info editing". */
+ if (from_tty && args)
+ {
+ args[0] = '+';
+ args[1] = '\0';
+ }
+}
+
+/* Called by do_setshow_command. */
+/* ARGSUSED */
+static void
+set_history_size_command (args, from_tty, c)
+ char *args;
+ int from_tty;
+ struct cmd_list_element *c;
+{
+ if (history_size == UINT_MAX)
+ unstifle_history ();
+ else
+ stifle_history (history_size);
+}
+
+/* ARGSUSED */
+static void
+set_history (args, from_tty)
+ char *args;
+ int from_tty;
+{
+ printf ("\"set history\" must be followed by the name of a history subcommand.\n");
+ help_list (sethistlist, "set history ", -1, stdout);
+}
+
+/* ARGSUSED */
+static void
+show_history (args, from_tty)
+ char *args;
+ int from_tty;
+{
+ cmd_show_list (showhistlist, from_tty, "");
+}
+
+int info_verbose = 0; /* Default verbose msgs off */
+
+/* Called by do_setshow_command. An elaborate joke. */
+/* ARGSUSED */
+static void
+set_verbose (args, from_tty, c)
+ char *args;
+ int from_tty;
+ struct cmd_list_element *c;
+{
+ char *cmdname = "verbose";
+ struct cmd_list_element *showcmd;
+
+ showcmd = lookup_cmd_1 (&cmdname, showlist, NULL, 1);
+
+ if (info_verbose)
+ {
+ c->doc = "Set verbose printing of informational messages.";
+ showcmd->doc = "Show verbose printing of informational messages.";
+ }
+ else
+ {
+ c->doc = "Set verbosity.";
+ showcmd->doc = "Show verbosity.";
+ }
+}
+
+static void
+float_handler ()
+{
+ /* This message is based on ANSI C, section 4.7. Note that integer
+ divide by zero causes this, so "float" is a misnomer. */
+ error ("Erroneous arithmetic operation.");
+}
+
+/* Return whether we are running a batch file or from terminal. */
+int
+batch_mode ()
+{
+ return !(instream == stdin && ISATTY (stdin));
+}
\f
+static void
+initialize_cmd_lists ()
+{
+ cmdlist = (struct cmd_list_element *) 0;
+ infolist = (struct cmd_list_element *) 0;
+ enablelist = (struct cmd_list_element *) 0;
+ disablelist = (struct cmd_list_element *) 0;
+ deletelist = (struct cmd_list_element *) 0;
+ enablebreaklist = (struct cmd_list_element *) 0;
+ setlist = (struct cmd_list_element *) 0;
+ showlist = NULL;
+ sethistlist = (struct cmd_list_element *) 0;
+ showhistlist = NULL;
+ unsethistlist = (struct cmd_list_element *) 0;
+}
+
static void
initialize_main ()
{
+ struct cmd_list_element *c;
+
+ char *tmpenv;
+
+#ifdef DEFAULT_PROMPT
+ prompt = savestring (DEFAULT_PROMPT, strlen(DEFAULT_PROMPT));
+#else
prompt = savestring ("(gdb) ", 6);
+#endif
+
+ /* Set the important stuff up for command editing. */
+ command_editing_p = 1;
+ history_expansion_p = 0;
+ write_history_p = 0;
+
+ if (tmpenv = getenv ("HISTSIZE"))
+ history_size = atoi (tmpenv);
+ else
+ history_size = 256;
+
+ stifle_history (history_size);
+
+ if (tmpenv = getenv ("GDBHISTFILE"))
+ history_filename = savestring (tmpenv, strlen(tmpenv));
+ else
+ /* We include the current directory so that if the user changes
+ directories the file written will be the same as the one
+ that was read. */
+ history_filename = concat (current_directory, "/.gdb_history", "");
+
+ read_history (history_filename);
+
+ /* Setup important stuff for command line editing. */
+ rl_completion_entry_function = (int (*)()) symbol_completion_function;
+ rl_completer_word_break_characters = gdb_completer_word_break_characters;
+ rl_readline_name = "gdb";
/* Define the classes of commands.
They will appear in the help list in the reverse of this order. */
- add_cmd ("obscure", class_obscure, 0, "Obscure features.", &cmdlist);
- add_cmd ("alias", class_alias, 0, "Aliases of other commands.", &cmdlist);
- add_cmd ("user", class_user, 0, "User-defined commands.\n\
+ add_cmd ("obscure", class_obscure, NO_FUNCTION, "Obscure features.", &cmdlist);
+ add_cmd ("aliases", class_alias, NO_FUNCTION, "Aliases of other commands.", &cmdlist);
+ add_cmd ("user-defined", class_user, NO_FUNCTION, "User-defined commands.\n\
The commands in this class are those defined by the user.\n\
Use the \"define\" command to define a command.", &cmdlist);
- add_cmd ("support", class_support, 0, "Support facilities.", &cmdlist);
- add_cmd ("status", class_info, 0, "Status inquiries.", &cmdlist);
- add_cmd ("files", class_files, 0, "Specifying and examining files.", &cmdlist);
- add_cmd ("breakpoints", class_breakpoint, 0, "Making program stop at certain points.", &cmdlist);
- add_cmd ("data", class_vars, 0, "Examining data.", &cmdlist);
- add_cmd ("stack", class_stack, 0, "Examining the stack.\n\
+ add_cmd ("support", class_support, NO_FUNCTION, "Support facilities.", &cmdlist);
+ add_cmd ("status", class_info, NO_FUNCTION, "Status inquiries.", &cmdlist);
+ add_cmd ("files", class_files, NO_FUNCTION, "Specifying and examining files.", &cmdlist);
+ add_cmd ("breakpoints", class_breakpoint, NO_FUNCTION, "Making program stop at certain points.", &cmdlist);
+ add_cmd ("data", class_vars, NO_FUNCTION, "Examining data.", &cmdlist);
+ add_cmd ("stack", class_stack, NO_FUNCTION, "Examining the stack.\n\
The stack is made up of stack frames. Gdb assigns numbers to stack frames\n\
counting from zero for the innermost (currently executing) frame.\n\n\
At any time gdb identifies one frame as the \"selected\" frame.\n\
When the program being debugged stops, gdb selects the innermost frame.\n\
The commands below can be used to select other frames by number or address.",
&cmdlist);
- add_cmd ("running", class_run, 0, "Running the program.", &cmdlist);
+ add_cmd ("running", class_run, NO_FUNCTION, "Running the program.", &cmdlist);
add_com ("pwd", class_files, pwd_command,
"Print working directory. This is used for your program as well.");
The change does not take effect for the program being debugged\n\
until the next time it is started.");
- add_com ("set-prompt", class_support, set_prompt_command,
- "Change gdb's prompt from the default of \"(gdb)\"");
+ add_show_from_set
+ (add_set_cmd ("prompt", class_support, var_string, (char *)&prompt,
+ "Set gdb's prompt",
+ &setlist),
+ &showlist);
+
add_com ("echo", class_support, echo_command,
"Print a constant string. Give string as argument.\n\
C escape sequences may be used in the argument.\n\
Use the \"document\" command to give documentation for the new command.\n\
Commands defined in this way do not take arguments.");
+#ifdef __STDC__
+ add_com ("source", class_support, source_command,
+ "Read commands from a file named FILE.\n\
+Note that the file \"" GDBINIT_FILENAME "\" is read automatically in this way\n\
+when gdb is started.");
+#else
+ /* Punt file name, we can't help it easily. */
add_com ("source", class_support, source_command,
"Read commands from a file named FILE.\n\
Note that the file \".gdbinit\" is read automatically in this way\n\
when gdb is started.");
+#endif
+
add_com ("quit", class_support, quit_command, "Exit gdb.");
add_com ("help", class_support, help_command, "Print list of commands.");
add_com_alias ("q", "quit", class_support, 1);
add_com_alias ("h", "help", class_support, 1);
+
+ c = add_set_cmd ("verbose", class_support, var_boolean, (char *)&info_verbose,
+ "Set ",
+ &setlist),
+ add_show_from_set (c, &showlist);
+ c->function = set_verbose;
+ set_verbose (NULL, 0, c);
+
add_com ("dump-me", class_obscure, dump_me_command,
"Get fatal error; make debugger dump its core.");
+ add_show_from_set
+ (add_set_cmd ("editing", class_support, var_boolean, (char *)&command_editing_p,
+ "Set command line editing.\n\
+Use \"on\" to enable to enable the editing, and \"off\" to disable it.\n\
+Without an argument, command line editing is enabled.", &setlist),
+ &showlist);
+
+ add_prefix_cmd ("history", class_support, set_history,
+ "Generic command for setting command history parameters.",
+ &sethistlist, "set history ", 0, &setlist);
+ add_prefix_cmd ("history", class_support, show_history,
+ "Generic command for showing command history parameters.",
+ &showhistlist, "show history ", 0, &showlist);
+
+ add_show_from_set
+ (add_set_cmd ("expansion", no_class, var_boolean, (char *)&history_expansion_p,
+ "Set history expansion on command input.\n\
+Without an argument, history expansion is enabled.", &sethistlist),
+ &showhistlist);
+
+ add_show_from_set
+ (add_set_cmd ("save", no_class, var_boolean, (char *)&write_history_p,
+ "Set saving of the history record on exit.\n\
+Use \"on\" to enable to enable the saving, and \"off\" to disable it.\n\
+Without an argument, saving is enabled.", &sethistlist),
+ &showhistlist);
+
+ c = add_set_cmd ("size", no_class, var_uinteger, (char *)&history_size,
+ "Set the size of the command history, \n\
+ie. the number of previous commands to keep a record of.", &sethistlist);
+ add_show_from_set (c, &showhistlist);
+ c->function = set_history_size_command;
+
+ add_show_from_set
+ (add_set_cmd ("filename", no_class, var_filename, (char *)&history_filename,
+ "Set the filename in which to record the command history\n\
+ (the list of previous commands of which a record is kept).", &sethistlist),
+ &showhistlist);
+
+ add_show_from_set
+ (add_set_cmd ("confirm", class_support, var_boolean,
+ (char *)&caution,
+ "Set whether to confirm potentially dangerous operations.",
+ &setlist),
+ &showlist);
+
add_prefix_cmd ("info", class_info, info_command,
"Generic command for printing status.",
&infolist, "info ", 0, &cmdlist);
add_com_alias ("i", "info", class_info, 1);
- add_info ("copying", copying_info, "Conditions for redistributing copies of GDB.");
- add_info ("warranty", warranty_info, "Various kinds of warranty you do not have.");
- add_info ("version", version_info, "Report what version of GDB this is.");
+ add_prefix_cmd ("show", class_info, show_command,
+ "Generic command for showing things set with \"set\".",
+ &showlist, "show ", 0, &cmdlist);
+ /* Another way to get at the same thing. */
+ add_info ("set", show_command, "Show all GDB settings.");
+
+ add_cmd ("commands", no_class, show_commands, "Status of command editor.",
+ &showlist);
+
+ add_cmd ("version", no_class, show_version,
+ "Report what version of GDB this is.", &showlist);
}
projects / deliverable / binutils-gdb.git / blobdiff