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- /* Fully extensible Emacs, running on Unix, intended for GNU.
- Copyright (C) 1992, 1993 Free Software Foundation, Inc.
-
- This file is part of GNU Emacs.
-
- GNU Emacs 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, or (at your option)
- any later version.
-
- GNU Emacs 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 GNU Emacs; see the file COPYING. If not, write to
- the Free Software Foundation, 675 Mass Ave, Cambridge, MA 02139, USA. */
-
- #include "config.h"
- #include "lisp.h"
-
- #include <signal.h>
- #include <sys/signal.h>
- #include <errno.h>
-
- #include <stdio.h>
-
- #include <sys/types.h>
- #include <sys/file.h>
- #include <sys/stat.h>
-
- #ifdef VMS
- #include <ssdef.h>
- #endif
-
- #ifdef USG5
- #include <fcntl.h>
- #endif
-
- #ifdef BSD
- #include <sys/ioctl.h>
- #endif
-
- #ifdef APOLLO
- #ifndef APOLLO_SR10
- #include <default_acl.h>
- #endif
- #endif
-
- #ifdef RUNNABLE_TEMACS
- #include <setjmp.h>
- #endif
-
- #include "commands.h"
-
- #ifndef O_RDWR
- #define O_RDWR 2
- #endif
-
- #define PRIO_PROCESS 0
-
- /* Command line args from shell, as list of strings */
- Lisp_Object Vcommand_line_args;
-
- /* Set nonzero after Emacs has started up the first time.
- Prevents reinitialization of the Lisp world and keymaps
- on subsequent starts. */
- int initialized;
-
- /* Variable whose value is symbol giving operating system type */
- Lisp_Object Vsystem_type;
-
- extern Lisp_Object Vtop_level;
-
- /* Variable holding the name used to invoke emacs, and the full path
- used to get to the actual exec file. */
- Lisp_Object Vinvocation_name, Vexecution_path;
-
- /* If non-zero, emacs should not attempt to use an window-specific code,
- but instead should use the virtual terminal under which it was started */
- int inhibit_window_system;
-
- /* An address near the bottom of the stack.
- Tells GC how to save a copy of the stack. */
- char *stack_bottom;
-
- #ifdef HAVE_X_WINDOWS
- extern Lisp_Object Vwindow_system;
- #endif /* HAVE_X_WINDOWS */
-
- #ifdef USG_SHARED_LIBRARIES
- /* If nonzero, this is the place to put the end of the writable segment
- at startup. */
-
- unsigned int bss_end = 0;
- #endif
-
- /* Nonzero means running Emacs without interactive terminal. */
-
- int noninteractive;
-
- /* Value of Lisp variable `noninteractive'.
- Normally same as C variable `noninteractive'
- but nothing terrible happens if user sets this one. */
-
- int noninteractive1;
-
- /* Signal code for the fatal signal that was received */
- static int fatal_error_code;
-
- /* Nonzero if handling a fatal error already */
- static int fatal_error_in_progress;
-
- extern void reset_sys_modes (void);
-
- extern void report_pure_usage (void);
-
- #ifdef subprocesses
- extern void kill_buffer_processes (Lisp_Object buffer);
- #endif
-
- /* Handle bus errors, illegal instruction, etc. */
- SIGTYPE
- fatal_error_signal (sig)
- int sig;
- {
- #ifdef BSD
- int tpgrp;
- #endif /* BSD */
-
- fatal_error_code = sig;
- signal (sig, SIG_DFL);
-
- /* If fatal error occurs in code below, avoid infinite recursion. */
- if (fatal_error_in_progress)
- kill (getpid (), fatal_error_code);
-
- fatal_error_in_progress = 1;
-
- /* If we are controlling the terminal, reset terminal modes */
- #ifdef BSD
- if (ioctl(0, TIOCGPGRP, &tpgrp) == 0
- && tpgrp == getpgrp (0))
- #endif /* BSD */
- {
- reset_sys_modes ();
- if (sig != SIGTERM)
- fprintf (stderr, "Fatal error (%d).", sig);
- }
-
- /* Clean up */
- #ifdef subprocesses
- kill_buffer_processes (Qnil);
- #endif
- Fdo_auto_save (Qt);
-
- #ifdef CLASH_DETECTION
- unlock_all_files ();
- #endif /* CLASH_DETECTION */
-
- #ifdef VMS
- kill_vms_processes ();
- LIB$STOP (SS$_ABORT);
- #else
- /* Signal the same code; this time it will really be fatal. */
- kill (getpid (), fatal_error_code);
- #endif /* not VMS */
- }
-
- /* Code for dealing with Lisp access to the Unix command line */
-
- static void
- init_cmdargs (argc, argv, skip_args)
- int argc;
- char **argv;
- int skip_args;
- {
- register int i;
-
- Vcommand_line_args = Qnil;
-
- for (i = argc - 1; i >= 0; i--)
- {
- if (i == 0 || i > skip_args)
- Vcommand_line_args
- = Fcons (build_string (argv[i]), Vcommand_line_args);
- }
- }
-
- /* DOT_FOUND_IN_SEARCH becomes non-zero when find_user_command ()
- encounters a `.' as the directory pathname while scanning the
- list of possible pathnames; i.e., if `.' comes before the directory
- containing the file of interest. */
- static int dot_found_in_search;
-
- #define savestring(x) ((char *)(strcpy ((char *)xmalloc (1 + strlen (x)), (x))))
-
- #define u_mode_bits(x) (((x) & 0000700) >> 6)
- #define g_mode_bits(x) (((x) & 0000070) >> 3)
- #define o_mode_bits(x) (((x) & 0000007) >> 0)
- #define X_BIT(x) (x & 1)
-
- /* Non-zero if the last call to executable_file () found
- the file, but stated that it wasn't executable. */
- static int file_exists_p;
-
- static int
- group_member (gid)
- int gid;
- {
- return ((gid == getgid ()) || (gid == getegid ()));
- }
-
- /* Return non-zero if FILE is an executable file, otherwise 0.
- Note that this function is the definition of what an
- executable file is; do not change this unless YOU know
- what an executable file is. */
- static int
- executable_file (file)
- char *file;
- {
- struct stat finfo;
- static int user_id = -1;
-
- /* If the file doesn't exist, or is a directory, then we are
- not interested. */
- file_exists_p = !stat (file, &finfo);
-
- #ifndef S_ISDIR
- #define S_ISDIR(mode) (((mode) & S_IFMT) == S_IFDIR)
- #endif
-
- if (!file_exists_p || S_ISDIR (finfo.st_mode))
- return (0);
-
- /* By definition, the only other criteria is that the file has
- an execute bit set that we can use. */
- if (user_id == -1)
- user_id = geteuid ();
-
- /* Root only requires execute permission for any of owner, group or
- others to be able to exec a file. */
- if (user_id == 0)
- {
- int bits;
-
- bits = (u_mode_bits (finfo.st_mode) |
- g_mode_bits (finfo.st_mode) |
- o_mode_bits (finfo.st_mode));
-
- return (X_BIT (bits));
- }
-
- /* If we are the owner of the file, the owner execute bit applies. */
- if (user_id == finfo.st_uid)
- return (X_BIT (u_mode_bits (finfo.st_mode)));
-
- /* If we are in the owning group, the group permissions apply. */
- if (group_member (finfo.st_gid))
- return (X_BIT (g_mode_bits (finfo.st_mode)));
-
- /* If `others' have execute permission to the file, then so do we,
- since we are also `others'. */
- return (X_BIT (o_mode_bits (finfo.st_mode)));
- }
-
- /* Return 1 if PATH1 and PATH2 are the same file. This is kind of
- expensive. If non-NULL STP1 and STP2 point to stat structures
- corresponding to PATH1 and PATH2, respectively. */
- static int
- same_file (path1, path2, stp1, stp2)
- char *path1, *path2;
- struct stat *stp1, *stp2;
- {
- struct stat st1, st2;
-
- if (stp1 == 0)
- {
- if (stat (path1, &st1) != 0)
- return (0);
- stp1 = &st1;
- }
-
- if (stp2 == 0)
- {
- if (stat (path2, &st2) != 0)
- return (0);
- stp2 = &st2;
- }
-
- return ((stp1->st_dev == stp2->st_dev) && (stp1->st_ino == stp2->st_ino));
- }
-
- /* Return 1 if STRING is an absolute program name; it is absolute if it
- contains any slashes. This is used to decide whether or not to look
- up through $PATH. */
- static int
- absolute_program (string)
- char *string;
- {
- return ((char *)strchr (string, '/') != 0);
- }
-
- /* Given a string containing units of information separated by colons,
- return the next one pointed to by INDEX, or NULL if there are no more.
- Advance INDEX to the character after the colon. */
- static char *
- extract_colon_unit (string, index)
- char *string;
- int *index;
- {
- int i, start;
-
- i = *index;
-
- if (!string || (i >= strlen (string)))
- return 0;
-
- /*
- * Each call to this routine leaves the index pointing at a colon if there
- * is more to the path. If i is > 0, then increment past the `:'. (If i
- * is 0, then the path has a leading colon. If this is not done, the
- * second call to this routine will always return NULL, which will be
- * translated to `.', even if `.' is not in the path. Trailing colons
- * are handled OK by the `else' part of the if statement; it returns a null
- * string for the last component of a path with a trailing colon, and the
- * routines that call this will translate that to `.'.
- */
-
- if (i && string[i] == ':')
- i++;
-
- start = i;
-
- while (string[i] && string[i] != ':') i++;
-
- *index = i;
-
- if (i == start)
- {
- if (!string[i])
- return 0;
-
- (*index)++;
-
- return (savestring (""));
- }
- else
- {
- char *value;
-
- value = (char *)xmalloc (1 + (i - start));
- strncpy (value, &string[start], (i - start));
- value [i - start] = '\0';
-
- return (value);
- }
- }
-
- static char *
- find_executable_name ()
- {
- extern char *getenv ();
- struct Lisp_String *lname = XSTRING (Fcar (Vcommand_line_args));
- int name_len = lname->size;
- char *path_list = getenv ("PATH");
- int must_be_executable = 1;
- extern int file_exists_p;
- char *full_path;
- char *path;
- int path_index = 0;
- struct stat dot_stat_buf;
- char *name = (char *) alloca (name_len + 1);
- memcpy (name, lname->data, name_len);
- name[name_len] = 0;
-
- /* We haven't started looking, so we certainly haven't seen
- a `.' as the directory path yet. */
- dot_found_in_search = 0;
-
- if (absolute_program (name))
- {
- full_path = (char *)xmalloc (1 + name_len);
- strcpy (full_path, name);
-
- if (executable_file (full_path) || file_exists_p)
- {
- return (full_path);
- }
- else
- {
- xfree (full_path);
- return 0;
- }
- }
-
- stat (".", &dot_stat_buf); /* should set in get_working_directory */
-
- while (path_list && path_list[path_index])
- {
- path = extract_colon_unit (path_list, &path_index);
- if (!path || !*path)
- {
- if (path)
- xfree (path);
- path = savestring ("."); /* by definition. */
- }
-
- /* Remember the location of "." in the path, in all its forms (as long as
- they begin with a `.', e.g. `./.') */
- if ((*path == '.') && same_file (".", path, &dot_stat_buf, (struct stat *) 0))
- dot_found_in_search = 1;
-
- full_path = (char *)xmalloc (2 + strlen (path) + name_len);
- sprintf (full_path, "%s/%s", path, name);
- xfree (path);
-
- if (executable_file (full_path) ||
- (!must_be_executable && file_exists_p))
- {
- return (full_path);
- }
- else
- xfree (full_path);
- }
-
- return 0;
- }
-
- #ifdef NeXT
- int malloc_cookie;
- #endif
-
- extern void init_alloc_once (void);
- extern void init_obarray (void);
- extern void init_eval_once (void);
- extern void init_syntax_once (void);
- extern void init_casetab_once (void);
- extern void init_buffer_once (void);
- extern void init_minibuf_once (void);
- extern void init_window_once (void);
-
- extern void init_alloc (void);
- #ifdef MAINTAIN_ENVIRONMENT
- extern void init_environ (void);
- #endif
- extern void init_eval (void);
- extern void init_data (void);
- extern void init_lread (void);
- extern void init_cmdargs ();
- extern void init_buffer (void);
- #ifdef VMS
- extern void init_vms_input (void);
- #endif /* VMS */
- extern void init_display (void);
- extern void init_keyboard (void);
- extern void init_callproc (void);
- #ifdef VMS
- extern void init_vmsproc (void);
- #endif /* VMS */
- extern void init_sys_modes (void);
- extern void init_xdisp (void);
- extern void init_macros (void);
- extern void init_editfns (void);
- #ifdef LISP_FLOAT_TYPE
- extern void init_floatfns (void);
- #endif
- #ifdef VMS
- extern void init_vmsfns (void);
- #endif /* VMS */
- #ifdef subprocesses
- extern void init_process (void);
- #endif /* subprocesses */
-
- extern void syms_of_data (void);
- extern void syms_of_alloc (void);
- #ifdef MAINTAIN_ENVIRONMENT
- extern void syms_of_environ (void);
- #endif /* MAINTAIN_ENVIRONMENT */
- extern void syms_of_lread (void);
- extern void syms_of_print (void);
- extern void syms_of_eval (void);
- extern void syms_of_fns (void);
- #ifdef LISP_FLOAT_TYPE
- extern void syms_of_floatfns (void);
- #endif
- extern void syms_of_elhash (void);
- extern void syms_of_abbrev (void);
- extern void syms_of_buffer (void);
- extern void syms_of_bytecode (void);
- extern void syms_of_callint (void);
- extern void syms_of_casefiddle (void);
- extern void syms_of_casetab (void);
- extern void syms_of_callproc (void);
- extern void syms_of_cmds (void);
- #ifndef NO_DIR_LIBRARY
- extern void syms_of_dired (void);
- #endif /* not NO_DIR_LIBRARY */
- extern void syms_of_display (void);
- extern void syms_of_doc (void);
- extern void syms_of_editfns (void);
- extern void syms_of_fileio (void);
- #ifdef CLASH_DETECTION
- extern void syms_of_filelock (void);
- #endif /* CLASH_DETECTION */
- extern void syms_of_indent (void);
- extern void syms_of_keyboard (void);
- extern void syms_of_keymap (void);
- extern void syms_of_macros (void);
- extern void syms_of_marker (void);
- extern void syms_of_minibuf (void);
- extern void syms_of_mocklisp (void);
- #ifdef subprocesses
- extern void syms_of_process (void);
- #endif /* subprocesses */
- extern void syms_of_search (void);
- #ifdef MULTI_SCREEN
- extern void syms_of_screen (void);
- #endif
- extern void syms_of_extents (void);
- extern void syms_of_syntax (void);
- extern void syms_of_undo (void);
- #ifdef VMS
- extern void syms_of_vmsproc (void);
- #endif /* VMS */
- extern void syms_of_window (void);
- extern void syms_of_xdisp (void);
- #ifdef HAVE_X_WINDOWS
- extern void syms_of_xfns (void);
- extern void syms_of_xselect (void);
- extern void syms_of_menubar (void);
- #endif /* HAVE_X_WINDOWS */
- extern void syms_of_faces (void);
- extern void syms_of_events (void);
- extern void syms_of_event_alloc (void);
- extern void syms_of_event_stream (void);
- extern void syms_of_font_lock (void);
- #ifdef ENERGIZE
- extern void syms_of_editorside (void);
- #endif
- #ifdef EMACS_BTL
- extern void syms_of_cadillac_btl_emacs (void);
- #endif
- extern void keys_of_keymap (void);
-
- static void syms_of_emacs (void);
-
- #ifndef SYSTEM_MALLOC
- extern void malloc_init ();
- #endif
-
- extern void malloc_warning ();
-
- #ifdef BSD
- extern pid_t setpgrp ();
- #endif
-
- #ifdef RUN_TIME_REMAP
- extern int run_time_remap ();
- #endif
-
- /* ARGSUSED */
- #ifdef RUNNABLE_TEMACS
- static int main_1 (argc, argv, envp)
- #else
- int main (argc, argv, envp)
- #endif
- int argc;
- char **argv;
- char **envp;
- {
- char stack_bottom_variable;
- int skip_args = 0;
- extern int errno;
- extern sys_nerr;
- extern char *sys_errlist[];
-
- #ifdef NeXT
- /* this helps out unexNeXT.c */
- if (initialized)
- if (malloc_jumpstart (malloc_cookie) != 0)
- printf ("malloc jumpstart failed!\n");
- #endif
-
- #ifdef FREE_CHECKING
- init_free_hook ();
- #endif
-
- #ifdef VMS
- #ifdef LINK_CRTL_SHARE
- #ifdef SHAREABLE_LIB_BUG
- extern noshare char **environ;
- #endif /* SHAREABLE_LIB_BUG */
- #endif /* LINK_CRTL_SHARE */
-
- /* If -map specified, map the data file in */
- if (argc > 2 && ! strcmp (argv[1], "-map"))
- {
- skip_args = 2;
- mapin_data (argv[2]);
- }
-
- #ifdef LINK_CRTL_SHARE
- #ifdef SHAREABLE_LIB_BUG
- /* Bletcherous shared libraries! */
- if (!stdin)
- stdin = fdopen (0, "r");
- if (!stdout)
- stdout = fdopen (1, "w");
- if (!stderr)
- stderr = fdopen (2, "w");
- if (!environ)
- environ = envp;
- #endif /* SHAREABLE_LIB_BUG */
- #endif /* LINK_CRTL_SHARE */
- #endif /* VMS */
-
- /* Record (approximately) where the stack begins. */
- stack_bottom = &stack_bottom_variable;
-
- #ifdef RUN_TIME_REMAP
- if (initialized)
- run_time_remap (argv[0]);
- #endif
-
- #ifdef USG_SHARED_LIBRARIES
- if (bss_end)
- brk (bss_end);
- #endif
-
- clearerr (stdin);
- #ifdef BSD
- setpgrp (0, getpid ());
- #endif
-
- #ifdef APOLLO
- #ifndef APOLLO_SR10
- /* If USE_DOMAIN_ACLS environment variable exists,
- use ACLs rather than UNIX modes. */
- if (egetenv ("USE_DOMAIN_ACLS"))
- default_acl (USE_DEFACL);
- #endif
- #endif /* APOLLO */
-
- #ifndef SYSTEM_MALLOC
- if (! initialized)
- malloc_init (0, malloc_warning);
- #endif /* not SYSTEM_MALLOC */
-
- #ifdef HIGHPRI
- setpriority (PRIO_PROCESS, getpid (), HIGHPRI);
- setuid (getuid ());
- #endif /* HIGHPRI */
-
- #ifdef BSD
- /* interrupt_input has trouble if we aren't in a separate process group. */
- setpgrp (getpid (), getpid ());
- #endif
-
- inhibit_window_system = 0;
-
- /* Handle the -t switch, which specifies filename to use as terminal */
- if (skip_args + 2 < argc && !strcmp (argv[skip_args + 1], "-t"))
- {
- int result;
- char *name, *ttyname ();
-
- skip_args += 2;
- close (0);
- close (1);
- result = open (argv[skip_args], O_RDWR, 2 );
- if (result < 0)
- {
- char *errstring;
-
- if (errno >= 0 && errno < sys_nerr)
- errstring = sys_errlist[errno];
- else
- errstring = "undocumented error code";
- fprintf (stderr, "emacs: %s: %s\n", argv[skip_args], errstring);
- exit (1);
- }
- dup (0);
- if (! isatty (0))
- {
- fprintf (stderr, "emacs: %s: not a tty\n", argv[skip_args]);
- exit (1);
- }
-
- name = ttyname (0);
- fprintf (stderr, "Using %s\n", name);
- #if 0
- fprintf (stderr, "Using %s\n", argv[skip_args]);
- #endif
- #ifdef HAVE_X_WINDOWS
- inhibit_window_system = 1; /* -t => -nw */
- #endif
- }
-
- if (skip_args + 1 < argc
- && (!strcmp (argv[skip_args + 1], "-nw")))
- {
- skip_args += 1;
- inhibit_window_system = 1;
- }
-
- /* Handle the -batch switch, which means don't do interactive display. */
- noninteractive = 0;
- if (skip_args + 1 < argc && !strcmp (argv[skip_args + 1], "-batch"))
- {
- skip_args += 1;
- noninteractive = 1;
- }
-
- /* Partially handle the -version and -help switches: they imply -batch,
- but are not removed from the list.
- */
- if (skip_args + 1 < argc &&
- (!strcmp (argv[skip_args + 1], "-version") ||
- !strcmp (argv[skip_args + 1], "-help")))
- noninteractive = 1;
-
- if (
- #ifndef CANNOT_DUMP
- ! noninteractive || initialized
- #else
- 1
- #endif
- )
- {
- /* Don't catch these signals in batch mode if not initialized.
- On some machines, this sets static data that would make
- signal fail to work right when the dumped Emacs is run. */
- signal (SIGHUP, fatal_error_signal);
- signal (SIGQUIT, fatal_error_signal);
- signal (SIGILL, fatal_error_signal);
- signal (SIGTRAP, fatal_error_signal);
- signal (SIGIOT, fatal_error_signal);
- #ifdef SIGEMT
- signal (SIGEMT, fatal_error_signal);
- #endif
- signal (SIGFPE, fatal_error_signal);
- signal (SIGBUS, fatal_error_signal);
- signal (SIGSEGV, fatal_error_signal);
- signal (SIGSYS, fatal_error_signal);
- signal (SIGTERM, fatal_error_signal);
- #ifdef SIGXCPU
- signal (SIGXCPU, fatal_error_signal);
- #endif
- #ifdef SIGXFSZ
- signal (SIGXFSZ, fatal_error_signal);
- #endif /* SIGXFSZ */
-
- #ifdef IBMAIX
- signal (SIGDANGER, fatal_error_signal);
- signal (20, fatal_error_signal);
- signal (21, fatal_error_signal);
- signal (22, fatal_error_signal);
- signal (23, fatal_error_signal);
- signal (24, fatal_error_signal);
- signal (SIGAIO, fatal_error_signal);
- signal (SIGPTY, fatal_error_signal);
- signal (SIGIOINT, fatal_error_signal);
- signal (SIGGRANT, fatal_error_signal);
- signal (SIGRETRACT, fatal_error_signal);
- signal (SIGSOUND, fatal_error_signal);
- signal (SIGMSG, fatal_error_signal);
- #endif
- }
-
- noninteractive1 = noninteractive;
-
- /* Perform basic initializations (not merely interning symbols) */
-
- if (!initialized)
- {
- init_alloc_once ();
- init_obarray ();
- init_eval_once ();
- init_syntax_once (); /* Create standard syntax table.
- Must be done before init_buffer */
- init_casetab_once ();
- init_buffer_once (); /* Create buffer table and some buffers */
- init_minibuf_once (); /* Create list of minibuffers.
- Must precede init_window_once */
- init_window_once (); /* Init the window system */
- }
-
- init_alloc ();
- #ifdef MAINTAIN_ENVIRONMENT
- init_environ ();
- #endif
- init_eval ();
- init_data ();
- init_lread ();
-
- init_cmdargs (argc, argv, skip_args); /* Create list Vcommand_line_args */
- init_buffer (); /* Init default directory of main buffer */
- if (!noninteractive)
- {
- #ifdef VMS
- init_vms_input ();/* init_display calls get_screen_size, that needs this */
- #endif /* VMS */
- init_display (); /* Determine terminal type. init_sys_modes uses results */
- }
- init_keyboard (); /* This too must precede init_sys_modes */
- init_callproc (); /* And this too. */
- #ifdef VMS
- init_vmsproc (); /* And this too. */
- #endif /* VMS */
- init_sys_modes (); /* Init system terminal modes (RAW or CBREAK, etc.) */
- init_xdisp ();
- init_macros ();
- init_editfns ();
- #ifdef LISP_FLOAT_TYPE
- init_floatfns ();
- #endif
- #ifdef VMS
- init_vmsfns ();
- #endif /* VMS */
- #ifdef subprocesses
- init_process ();
- #endif /* subprocesses */
-
- /* Intern the names of all standard functions and variables; define standard keys */
-
- if (!initialized)
- {
- /* The basic levels of Lisp must come first */
- /* And data must come first of all
- for the sake of symbols like error-message */
- syms_of_data ();
- syms_of_alloc ();
- #ifdef MAINTAIN_ENVIRONMENT
- syms_of_environ ();
- #endif /* MAINTAIN_ENVIRONMENT */
- syms_of_lread ();
- syms_of_print ();
- syms_of_eval ();
- syms_of_fns ();
- #ifdef LISP_FLOAT_TYPE
- syms_of_floatfns ();
- #endif
-
- syms_of_elhash (); /* This has to be before any keymaps are made */
-
- syms_of_abbrev ();
- syms_of_buffer ();
- syms_of_bytecode ();
- syms_of_callint ();
- syms_of_casefiddle ();
- syms_of_casetab ();
- syms_of_callproc ();
- syms_of_cmds ();
- #ifndef NO_DIR_LIBRARY
- syms_of_dired ();
- #endif /* not NO_DIR_LIBRARY */
- syms_of_display ();
- syms_of_doc ();
- syms_of_editfns ();
- syms_of_emacs ();
- syms_of_fileio ();
- #ifdef CLASH_DETECTION
- syms_of_filelock ();
- #endif /* CLASH_DETECTION */
- syms_of_indent ();
- syms_of_keyboard ();
- syms_of_keymap ();
- syms_of_macros ();
- syms_of_marker ();
- syms_of_minibuf ();
- syms_of_mocklisp ();
- #ifdef subprocesses
- syms_of_process ();
- #endif /* subprocesses */
- syms_of_search ();
- #ifdef MULTI_SCREEN
- syms_of_screen ();
- #endif
- syms_of_extents ();
- syms_of_syntax ();
- syms_of_undo ();
- #ifdef VMS
- syms_of_vmsproc ();
- #endif /* VMS */
- syms_of_window ();
- syms_of_xdisp ();
- #ifdef HAVE_X_WINDOWS
- syms_of_xfns ();
- syms_of_xselect ();
- syms_of_menubar ();
- #endif /* HAVE_X_WINDOWS */
- syms_of_faces ();
- syms_of_events ();
- syms_of_event_alloc ();
- syms_of_event_stream ();
- syms_of_font_lock ();
-
- #ifdef SYMS_SYSTEM
- SYMS_SYSTEM;
- #endif
-
- #ifdef SYMS_MACHINE
- SYMS_MACHINE;
- #endif
-
- #ifdef EMACS_BTL
- syms_of_cadillac_btl_emacs (); /* #### rename me */
- #endif
-
- #ifdef ENERGIZE
- syms_of_editorside ();
- #endif
-
- #ifdef FREE_CHECKING
- syms_of_free_hook();
- #endif
- keys_of_keymap ();
- }
-
- if (!initialized)
- {
- /* Handle -l loadup-and-dump, args passed by Makefile. */
- if (argc > 2 + skip_args && !strcmp (argv[1 + skip_args], "-l"))
- Vtop_level = Fcons (intern ("load"),
- Fcons (build_string (argv[2 + skip_args]), Qnil));
- #ifdef CANNOT_DUMP
- /* Unless next switch is -nl, load "loadup.el" first thing. */
- if (!(argc > 1 + skip_args && !strcmp (argv[1 + skip_args], "-nl")))
- Vtop_level = Fcons (intern ("load"),
- Fcons (build_string ("loadup.el"), Qnil));
- #endif /* CANNOT_DUMP */
- }
-
- initialized = 1;
-
- /* try really hard to get the actually pathname of the exec file we
- are running */
- {
- Lisp_Object full_program_name;
- char *progname = find_executable_name ();
- full_program_name = (progname
- ? Fexpand_file_name (build_string (progname), Qnil)
- : Fcar (Vcommand_line_args));
- xfree (progname);
-
- Vexecution_path = full_program_name;
- Vinvocation_name = Ffile_name_nondirectory (full_program_name);
- }
-
- #ifdef HAVE_TZSETWALL
- {
- /* fix for bug where emacs always thinks that it is in the
- timezone wherein it was dumped
- */
- extern void tzsetwall ();
- tzsetwall ();
- }
- #endif
-
- /* Enter editor command loop. This never returns. */
- Frecursive_edit ();
- /* NOTREACHED */
- return -1;
- }
-
- #ifdef RUNNABLE_TEMACS
-
- static jmp_buf run_temacs_catch;
- static char *run_temacs_argv[100];
- static char run_temacs_args[1000];
- static int run_temacs_argc; /* -1 if dump_emacs or run_emacs_from_temacs */
-
- extern char **environ;
-
- /* ARGSUSED */
- int
- main (argc, argv, envp)
- int argc;
- char **argv;
- char **envp;
- {
- if (!initialized)
- {
- run_temacs_argc = 0;
- if (! _setjmp (run_temacs_catch))
- main_1 (argc, argv, envp);
- /* run-emacs-from-temacs called */
- argc = run_temacs_argc;
- run_temacs_argc = 0;
- argv = run_temacs_argv;
- envp = environ;
- }
- run_temacs_argc = -1;
- return main_1 (argc, argv, envp);
- }
-
- DEFUN ("run-emacs-from-temacs",
- Frun_emacs_from_temacs, Srun_emacs_from_temacs, 0, MANY, 0,
- "Do not call this. It will reinitialize your Emacs. You'll be sorry.")
- /* If this function is called from startup.el, it will be possible to run
- temacs as an editor, instead of having to dump an emacs and then run that
- (when debugging emacs itself, this can be much faster.)
- This will "restart" emacs with the specified command-line arguments.
- */
- (int nargs, Lisp_Object *args)
- {
- extern char **environ;
- extern int gc_in_progress, waiting_for_input;
- int ac;
- int namesize;
-
- if (gc_in_progress) abort ();
-
- if (run_temacs_argc < 0)
- error ("I've lost my temacs-hood.");
-
- namesize = XSTRING (Vexecution_path)->size + 1;
- if (namesize >= sizeof (run_temacs_args))
- error ("execution-path string is too long");
- if (nargs >= (sizeof (run_temacs_argv) / sizeof (run_temacs_argv [0])))
- error ("too many args");
- memcpy (run_temacs_args, (char *) XSTRING (Vexecution_path)->data, namesize);
- run_temacs_argv [0] = run_temacs_args;
- for (ac = 0; ac < nargs; ac++)
- {
- int s;
- CHECK_STRING (args[ac], ac);
- s = XSTRING (args[ac])->size + 1;
- if (s + namesize > sizeof (run_temacs_args))
- error ("lose lose");
- memcpy (run_temacs_args + namesize, XSTRING (args[ac])->data, s);
- run_temacs_argv [ac + 1] = run_temacs_args + namesize;
- namesize += s;
- }
- run_temacs_argv [nargs + 1] = 0;
- unbind_to (0, Qnil); /* this closes loadup.el */
- waiting_for_input = 0;
- Vpurify_flag = Qnil;
- run_temacs_argc = nargs + 1;
- report_pure_usage ();
- _longjmp (run_temacs_catch, 1);
- return Qnil; /* not reached; warning suppression */
- }
-
- #endif /* RUNNABLE_TEMACS */
-
-
- DEFUN ("kill-emacs", Fkill_emacs, Skill_emacs, 0, 1, "P",
- "Exit the Emacs job and kill it. Ask for confirmation, without argument.\n\
- If ARG is an integer, return ARG as the exit program code.\n\
- If ARG is a string, stuff it as keyboard input.\n\n\
- The value of `kill-emacs-hook', if not void,\n\
- is a list of functions (of no args),\n\
- all of which are called before Emacs is actually killed.")
- (arg)
- Lisp_Object arg;
- {
- struct gcpro gcpro1;
-
- GCPRO1 (arg);
-
- if (feof (stdin))
- arg = Qt;
-
- if (!NILP (Vrun_hooks) && !noninteractive)
- call1 (Vrun_hooks, intern ("kill-emacs-hook"));
-
- #ifdef subprocesses
- kill_buffer_processes (Qnil);
- #endif /* subprocesses */
-
- #ifdef VMS
- kill_vms_processes ();
- #endif /* VMS */
-
- Fdo_auto_save (Qt);
-
- #ifdef CLASH_DETECTION
- unlock_all_files ();
- #endif /* CLASH_DETECTION */
-
- fflush (stdout);
- reset_sys_modes ();
-
- #ifdef HAVE_X_WINDOWS
- if (!noninteractive && EQ (Vwindow_system, intern ("x")))
- Fx_close_current_connection ();
- #endif /* HAVE_X_WINDOWS */
-
- UNGCPRO;
-
- /* Is it really necessary to do this deassign
- when we are going to exit anyway? */
- /* #ifdef VMS
- stop_vms_input ();
- #endif */
- stuff_buffered_input (arg);
- exit ((FIXNUMP (arg)) ? XINT (arg)
- #ifdef VMS
- : 1
- #else
- : 0
- #endif
- );
- /* NOTREACHED */
- return Qnil; /* I'm sick of the compiler warning */
- }
-
- #ifndef CANNOT_DUMP
- /* Nothing like this can be implemented on an Apollo.
- What a loss! */
-
- DEFUN ("dump-emacs", Fdump_emacs, Sdump_emacs, 2, 2, 0,
- "Dump current state of Emacs into executable file FILENAME.\n\
- Take symbols from SYMFILE (presumably the file you executed to run Emacs).\n\
- This is used in the file `loadup.el' when building Emacs.\n\
- \n\
- Bind `command-line-processed' to nil before dumping,\n\
- if you want the dumped Emacs to process its command line\n\
- and announce itself normally when it is run.")
- (intoname, symname)
- Lisp_Object intoname, symname;
- {
- register unsigned char *a_name = 0;
- extern char my_edata;
- Lisp_Object tem;
-
- #ifdef FREE_CHECKING
- Freally_free (Qnil);
-
- /* When we're dumping, we can't use the debugging free() */
-
- disable_free_hook ();
- #endif
-
- CHECK_STRING (intoname, 0);
- intoname = Fexpand_file_name (intoname, Qnil);
- if (!NILP (symname))
- {
- CHECK_STRING (symname, 0);
- if (XSTRING (symname)->size)
- {
- symname = Fexpand_file_name (symname, Qnil);
- a_name = XSTRING (symname)->data;
- }
- }
-
- tem = Vpurify_flag;
- Vpurify_flag = Qnil;
-
- report_pure_usage ();
- fflush (stdout);
- #ifdef VMS
- mapout_data (XSTRING (intoname)->data);
- #else
- /* Tell malloc where start of impure now is */
- /* Also arrange for warnings when nearly out of space. */
- #ifndef SYSTEM_MALLOC
- malloc_init (&my_edata, malloc_warning);
- #endif
- unexec (XSTRING (intoname)->data, a_name, &my_edata, 0, 0);
- #endif /* not VMS */
-
- Vpurify_flag = tem;
-
- return Qnil;
- }
-
- #endif /* not CANNOT_DUMP */
-
- #ifdef VMS
- #define SEPCHAR ','
- #else
- #define SEPCHAR ':'
- #endif
-
- Lisp_Object
- decode_env_path (evarname, defalt)
- const char *evarname, *defalt;
- {
- register const char *path;
- register const char *p;
-
- Lisp_Object lpath;
-
- path = (char *) egetenv (evarname);
- if (!path)
- path = defalt;
- lpath = Qnil;
- while (1)
- {
- p = strchr (path, SEPCHAR);
- if (!p) p = path + strlen (path);
- lpath = Fcons (p - path ? make_string (path, p - path) : Qnil,
- lpath);
- if (*p)
- path = p + 1;
- else
- break;
- }
- return Fnreverse (lpath);
- }
-
- DEFUN ("noninteractive", Fnoninteractive, Snoninteractive, 0, 0, 0,
- "Non-nil return value means Emacs is running without interactive terminal.")
- ()
- {
- return ((noninteractive) ? Qt : Qnil);
- }
-
- static void
- syms_of_emacs ()
- {
- #ifndef CANNOT_DUMP
- defsubr (&Sdump_emacs);
- #endif /* not CANNOT_DUMP */
-
- #ifdef RUNNABLE_TEMACS
- defsubr (&Srun_emacs_from_temacs);
- #endif
-
- defsubr (&Skill_emacs);
- defsubr (&Snoninteractive);
-
- DEFVAR_LISP ("command-line-args", &Vcommand_line_args,
- "Args passed by shell to Emacs, as a list of strings.");
-
- DEFVAR_LISP ("invocation-name", &Vinvocation_name,
- "Name of file used to invoke editing session.\n\
- This is the same as `(file-name-nondirectory execution-path)'.");
-
- DEFVAR_LISP ("execution-path", &Vexecution_path,
- "Pathname of executable emacs program now running.");
-
- DEFVAR_LISP ("system-type", &Vsystem_type,
- "Value is symbol indicating type of operating system you are using.");
- Vsystem_type = intern (SYSTEM_TYPE);
-
- DEFVAR_BOOL ("noninteractive", &noninteractive1,
- "Non-nil means Emacs is running without interactive terminal.");
- }
-