1 /* Fully extensible Emacs, running on Unix, intended for GNU.
2 Copyright (C) 1985,86,87,93,94,95,97,98,1999 Free Software Foundation, Inc.
4 This file is part of GNU Emacs.
6 GNU Emacs is free software; you can redistribute it and/or modify
7 it under the terms of the GNU General Public License as published by
8 the Free Software Foundation; either version 2, or (at your option)
11 GNU Emacs is distributed in the hope that it will be useful,
12 but WITHOUT ANY WARRANTY; without even the implied warranty of
13 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
14 GNU General Public License for more details.
16 You should have received a copy of the GNU General Public License
17 along with GNU Emacs; see the file COPYING. If not, write to
18 the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
19 Boston, MA 02111-1307, USA. */
27 #include <sys/types.h>
39 #include <sys/ioctl.h>
44 #include "intervals.h"
48 #include "blockinput.h"
49 #include "syssignal.h"
51 #include "termhooks.h"
60 #include <sys/resource.h>
68 #if !defined (USG) || defined (BSD_PGRPS)
70 #define setpgrp setpgid
74 extern void malloc_warning
P_ ((char *));
75 extern void set_time_zone_rule
P_ ((char *));
76 extern char *index
P_ ((const char *, int));
78 /* Make these values available in GDB, which doesn't see macros. */
80 EMACS_INT gdb_valbits
= VALBITS
;
81 EMACS_INT gdb_gctypebits
= GCTYPEBITS
;
82 EMACS_INT gdb_emacs_intbits
= sizeof (EMACS_INT
) * BITS_PER_CHAR
;
84 EMACS_INT gdb_data_seg_bits
= DATA_SEG_BITS
;
86 EMACS_INT gdb_data_seg_bits
= 0;
88 EMACS_INT PVEC_FLAG
= PSEUDOVECTOR_FLAG
;
90 /* Command line args from shell, as list of strings */
91 Lisp_Object Vcommand_line_args
;
93 /* The name under which Emacs was invoked, with any leading directory
95 Lisp_Object Vinvocation_name
;
97 /* The directory name from which Emacs was invoked. */
98 Lisp_Object Vinvocation_directory
;
100 /* The directory name in which to find subdirs such as lisp and etc.
101 nil means get them only from PATH_LOADSEARCH. */
102 Lisp_Object Vinstallation_directory
;
104 /* Hook run by `kill-emacs' before it does really anything. */
105 Lisp_Object Vkill_emacs_hook
;
108 /* Hooks for signal USR1 and USR2 handing */
109 Lisp_Object Vsignal_USR1_hook
;
111 Lisp_Object Vsignal_USR2_hook
;
115 /* Search path separator. */
116 Lisp_Object Vpath_separator
;
118 /* Set nonzero after Emacs has started up the first time.
119 Prevents reinitialization of the Lisp world and keymaps
120 on subsequent starts. */
123 #ifdef DOUG_LEA_MALLOC
124 /* Preserves a pointer to the memory allocated that copies that
125 static data inside glibc's malloc. */
126 void *malloc_state_ptr
;
127 /* From glibc, a routine that returns a copy of the malloc internal state. */
128 extern void *malloc_get_state ();
129 /* From glibc, a routine that overwrites the malloc internal state. */
130 extern void malloc_set_state ();
131 /* Non-zero if the MALLOC_CHECK_ enviroment variable was set while
132 dumping. Used to work around a bug in glibc's malloc. */
133 int malloc_using_checking
;
136 /* Variable whose value is symbol giving operating system type. */
137 Lisp_Object Vsystem_type
;
139 /* Variable whose value is string giving configuration built for. */
140 Lisp_Object Vsystem_configuration
;
142 /* Variable whose value is string giving configuration options,
143 for use when reporting bugs. */
144 Lisp_Object Vsystem_configuration_options
;
146 Lisp_Object Qfile_name_handler_alist
;
148 /* Current and previous system locales for messages and time. */
149 Lisp_Object Vsystem_messages_locale
;
150 Lisp_Object Vprevious_system_messages_locale
;
151 Lisp_Object Vsystem_time_locale
;
152 Lisp_Object Vprevious_system_time_locale
;
154 /* If non-zero, emacs should not attempt to use an window-specific code,
155 but instead should use the virtual terminal under which it was started */
156 int inhibit_window_system
;
158 /* If nonzero, set Emacs to run at this priority. This is also used
159 in child_setup and sys_suspend to make sure subshells run at normal
160 priority; Those functions have their own extern declaration. */
163 /* If non-zero a filter or a sentinel is running. Tested to save the match
164 data on the first attempt to change it inside asynchronous code. */
165 int running_asynch_code
;
169 extern int inherited_pgroup
;
172 #ifdef HAVE_X_WINDOWS
173 /* If non-zero, -d was specified, meaning we're using some window system. */
177 /* An address near the bottom of the stack.
178 Tells GC how to save a copy of the stack. */
181 #ifdef HAVE_WINDOW_SYSTEM
182 extern Lisp_Object Vwindow_system
;
183 #endif /* HAVE_WINDOW_SYSTEM */
185 extern Lisp_Object Vauto_save_list_file_name
;
187 #ifdef USG_SHARED_LIBRARIES
188 /* If nonzero, this is the place to put the end of the writable segment
191 unsigned int bss_end
= 0;
194 /* Nonzero means running Emacs without interactive terminal. */
198 /* Value of Lisp variable `noninteractive'.
199 Normally same as C variable `noninteractive'
200 but nothing terrible happens if user sets this one. */
204 /* Save argv and argc. */
208 static void sort_args ();
209 void syms_of_emacs ();
212 Usage: %s [OPTION-OR-FILENAME]...\n\
214 Run Emacs, the extensible, customizable, self-documenting real-time\n\
215 display editor. The recommended way to start Emacs for normal editing\n\
216 is with no options at all.\n\
218 Run M-x info RET m emacs RET m command arguments RET inside Emacs to\n\
219 read the main documentation for these command-line arguments.\n\
221 Initialization options:\n\
223 --batch do not do interactive display; implies -q\n\
224 --debug-init enable Emacs Lisp debugger during init file\n\
225 --help display this help message and exit\n\
226 --multibyte, --no-unibyte run Emacs in multibyte mode\n\
227 --no-init-file, -q load neither ~/.emacs nor default.el\n\
228 --no-shared-memory, -nl do not use shared memory\n\
229 --no-site-file do not load site-start.el\n\
230 --no-windows, -nw don't communicate with X, ignoring $DISPLAY\n\
231 --terminal, -t DEVICE use DEVICE for terminal I/O\n\
232 --unibyte, --no-multibyte run Emacs in unibyte mode\n\
233 --user, -u USER load ~USER/.emacs instead of your own\n\
234 --version display version information and exit\n\
238 FILE visit FILE using find-file\n\
239 +LINENUM FILE visit FILE using find-file, then go to line LINENUM\n\
240 --directory, -L DIR add DIR to variable load-path\n\
241 --eval EXPR evaluate Emacs Lisp expression EXPR\n\
242 --execute EXPR evaluate Emacs Lisp expression EXPR\n\
243 --find-file FILE visit FILE\n\
244 --funcall, -f FUNC call Emacs function FUNC with no arguments\n\
245 --insert FILE insert contents of FILE into current buffer\n\
246 --kill exit without asking for confirmation\n\
247 --load, -l FILE load FILE of Emacs Lisp code using the load function\n\
248 --visit FILE visit FILE\n\
254 --background-color, -bg COLOR window background color\n\
255 --border-color, -bd COLOR main border color\n\
256 --border-width, -bw WIDTH width of main border\n\
257 --cursor-color, -cr COLOR color of the Emacs cursor indicating point\n\
258 --display, -d DISPLAY use X server DISPLAY\n\
259 --font, -fn FONT default font; must be fixed-widthp\n\
260 --foreground-color, -fg COLOR window foreground color\n\
261 --geometry, -g GEOMETRY window geometry\n\
262 --iconic start Emacs in iconified state\n\
263 --icon-type, -i use picture of gnu for Emacs icon\n\
264 --internal-border, -ib WIDTH width between text and main border\n\
265 --line-spacing, -lsp PIXELS additional space to put between lines\n\
266 --mouse-color, -ms COLOR mouse cursor color in Emacs window\n\
267 --name NAME title of main Emacs window\n\
268 --reverse-video, -r, -rv switch foreground and background\n\
269 --title, -T, -wn, TITLE title for Emacs windows\n\
270 --vertical-scroll-bars, -vb enable vertical scroll bars\n\
271 --xrm XRESOURCES set additional X resources\n\
273 You can generally also specify long option names with a single -; for\n\
274 example, -batch as well as --batch. You can use any unambiguous\n\
275 abbreviation for a --option.\n\
277 Various environment variables and window system resources also affect\n\
278 Emacs' operation. See the main documentation.\n\
280 Report bugs to bug-gnu-emacs@gnu.org. First, please see the Bugs\n\
281 section of the Emacs manual or the file BUGS.\n"
284 /* Signal code for the fatal signal that was received */
285 int fatal_error_code
;
287 /* Nonzero if handling a fatal error already */
288 int fatal_error_in_progress
;
292 handle_USR1_signal (sig
)
295 struct input_event buf
;
297 bzero (&buf
, sizeof buf
);
298 buf
.kind
= USER_SIGNAL_EVENT
;
299 buf
.frame_or_window
= selected_frame
;
301 kbd_buffer_store_event (&buf
);
307 handle_USR2_signal (sig
)
310 struct input_event buf
;
312 bzero (&buf
, sizeof buf
);
313 buf
.kind
= USER_SIGNAL_EVENT
;
315 buf
.frame_or_window
= selected_frame
;
317 kbd_buffer_store_event (&buf
);
321 /* Handle bus errors, invalid instruction, etc. */
323 fatal_error_signal (sig
)
326 fatal_error_code
= sig
;
327 signal (sig
, SIG_DFL
);
329 TOTALLY_UNBLOCK_INPUT
;
331 /* If fatal error occurs in code below, avoid infinite recursion. */
332 if (! fatal_error_in_progress
)
334 fatal_error_in_progress
= 1;
336 shut_down_emacs (sig
, 0, Qnil
);
340 LIB$
STOP (SS$_ABORT
);
342 /* Signal the same code; this time it will really be fatal.
343 Remember that since we're in a signal handler, the signal we're
344 going to send is probably blocked, so we have to unblock it if we
345 want to really receive it. */
347 sigunblock (sigmask (fatal_error_code
));
349 kill (getpid (), fatal_error_code
);
355 /* Handler for SIGDANGER. */
357 memory_warning_signal (sig
)
360 signal (sig
, memory_warning_signal
);
362 malloc_warning ("Operating system warns that virtual memory is running low.\n");
364 /* It might be unsafe to call do_auto_save now. */
365 force_auto_save_soon ();
369 /* We define abort, rather than using it from the library,
370 so that GDB can return from a breakpoint here.
371 MSDOS has its own definition on msdos.c */
373 #if ! defined (DOS_NT) && ! defined (NO_ABORT)
375 #ifndef ABORT_RETURN_TYPE
376 #define ABORT_RETURN_TYPE void
382 kill (getpid (), SIGABRT
);
383 /* This shouldn't be executed, but it prevents a warning. */
389 /* Code for dealing with Lisp access to the Unix command line */
392 init_cmdargs (argc
, argv
, skip_args
)
398 Lisp_Object name
, dir
, tem
;
399 int count
= specpdl_ptr
- specpdl
;
400 Lisp_Object raw_name
;
405 raw_name
= build_string (argv
[0]);
407 /* Add /: to the front of the name
408 if it would otherwise be treated as magic. */
409 tem
= Ffind_file_name_handler (raw_name
, Qt
);
411 raw_name
= concat2 (build_string ("/:"), raw_name
);
413 Vinvocation_name
= Ffile_name_nondirectory (raw_name
);
414 Vinvocation_directory
= Ffile_name_directory (raw_name
);
416 /* If we got no directory in argv[0], search PATH to find where
417 Emacs actually came from. */
418 if (NILP (Vinvocation_directory
))
421 int yes
= openp (Vexec_path
, Vinvocation_name
,
422 EXEC_SUFFIXES
, &found
, 1);
425 /* Add /: to the front of the name
426 if it would otherwise be treated as magic. */
427 tem
= Ffind_file_name_handler (found
, Qt
);
429 found
= concat2 (build_string ("/:"), found
);
430 Vinvocation_directory
= Ffile_name_directory (found
);
434 if (!NILP (Vinvocation_directory
)
435 && NILP (Ffile_name_absolute_p (Vinvocation_directory
)))
436 /* Emacs was started with relative path, like ./emacs.
438 Vinvocation_directory
= Fexpand_file_name (Vinvocation_directory
, Qnil
);
440 Vinstallation_directory
= Qnil
;
442 if (!NILP (Vinvocation_directory
))
444 dir
= Vinvocation_directory
;
445 name
= Fexpand_file_name (Vinvocation_name
, dir
);
448 Lisp_Object tem
, lib_src_exists
;
449 Lisp_Object etc_exists
, info_exists
;
451 /* See if dir contains subdirs for use by Emacs.
452 Check for the ones that would exist in a build directory,
453 not including lisp and info. */
454 tem
= Fexpand_file_name (build_string ("lib-src"), dir
);
455 lib_src_exists
= Ffile_exists_p (tem
);
458 /* MSDOS installations frequently remove lib-src, but we still
459 must set installation-directory, or else info won't find
460 its files (it uses the value of installation-directory). */
461 tem
= Fexpand_file_name (build_string ("info"), dir
);
462 info_exists
= Ffile_exists_p (tem
);
467 if (!NILP (lib_src_exists
) || !NILP (info_exists
))
469 tem
= Fexpand_file_name (build_string ("etc"), dir
);
470 etc_exists
= Ffile_exists_p (tem
);
471 if (!NILP (etc_exists
))
473 Vinstallation_directory
474 = Ffile_name_as_directory (dir
);
479 /* See if dir's parent contains those subdirs. */
480 tem
= Fexpand_file_name (build_string ("../lib-src"), dir
);
481 lib_src_exists
= Ffile_exists_p (tem
);
485 /* See the MSDOS commentary above. */
486 tem
= Fexpand_file_name (build_string ("../info"), dir
);
487 info_exists
= Ffile_exists_p (tem
);
492 if (!NILP (lib_src_exists
) || !NILP (info_exists
))
494 tem
= Fexpand_file_name (build_string ("../etc"), dir
);
495 etc_exists
= Ffile_exists_p (tem
);
496 if (!NILP (etc_exists
))
498 tem
= Fexpand_file_name (build_string (".."), dir
);
499 Vinstallation_directory
500 = Ffile_name_as_directory (tem
);
505 /* If the Emacs executable is actually a link,
506 next try the dir that the link points into. */
507 tem
= Ffile_symlink_p (name
);
510 name
= Fexpand_file_name (tem
, dir
);
511 dir
= Ffile_name_directory (name
);
518 Vcommand_line_args
= Qnil
;
520 for (i
= argc
- 1; i
>= 0; i
--)
522 if (i
== 0 || i
> skip_args
)
524 = Fcons (build_string (argv
[i
]), Vcommand_line_args
);
527 unbind_to (count
, Qnil
);
530 DEFUN ("invocation-name", Finvocation_name
, Sinvocation_name
, 0, 0, 0,
531 "Return the program name that was used to run Emacs.\n\
532 Any directory names are omitted.")
535 return Fcopy_sequence (Vinvocation_name
);
538 DEFUN ("invocation-directory", Finvocation_directory
, Sinvocation_directory
,
540 "Return the directory name in which the Emacs executable was located")
543 return Fcopy_sequence (Vinvocation_directory
);
548 #ifdef LINK_CRTL_SHARE
549 #ifdef SHARABLE_LIB_BUG
550 extern noshare
char **environ
;
551 #endif /* SHARABLE_LIB_BUG */
552 #endif /* LINK_CRTL_SHARE */
556 /* A valid but unlikely value for the TZ environment value.
557 It is OK (though a bit slower) if the user actually chooses this value. */
558 static char dump_tz
[] = "UtC0";
561 #ifndef ORDINARY_LINK
562 /* We don't include crtbegin.o and crtend.o in the link,
563 so these functions and variables might be missed.
564 Provide dummy definitions to avoid error.
565 (We don't have any real constructors or destructors.) */
567 #ifndef GCC_CTORS_IN_LIBC
568 void __do_global_ctors ()
570 void __do_global_ctors_aux ()
572 void __do_global_dtors ()
574 /* Linux has a bug in its library; avoid an error. */
576 char * __CTOR_LIST__
[2] = { (char *) (-1), 0 };
578 char * __DTOR_LIST__
[2] = { (char *) (-1), 0 };
579 #endif /* GCC_CTORS_IN_LIBC */
582 #endif /* __GNUC__ */
583 #endif /* ORDINARY_LINK */
585 /* Test whether the next argument in ARGV matches SSTR or a prefix of
586 LSTR (at least MINLEN characters). If so, then if VALPTR is non-null
587 (the argument is supposed to have a value) store in *VALPTR either
588 the next argument or the portion of this one after the equal sign.
589 ARGV is read starting at position *SKIPPTR; this index is advanced
590 by the number of arguments used.
592 Too bad we can't just use getopt for all of this, but we don't have
593 enough information to do it right. */
596 argmatch (argv
, argc
, sstr
, lstr
, minlen
, valptr
, skipptr
)
609 /* Don't access argv[argc]; give up in advance. */
610 if (argc
<= *skipptr
+ 1)
613 arg
= argv
[*skipptr
+1];
616 if (strcmp (arg
, sstr
) == 0)
620 *valptr
= argv
[*skipptr
+2];
627 arglen
= (valptr
!= NULL
&& (p
= index (arg
, '=')) != NULL
628 ? p
- arg
: strlen (arg
));
629 if (lstr
== 0 || arglen
< minlen
|| strncmp (arg
, lstr
, arglen
) != 0)
631 else if (valptr
== NULL
)
642 else if (argv
[*skipptr
+2] != NULL
)
644 *valptr
= argv
[*skipptr
+2];
654 #ifdef DOUG_LEA_MALLOC
656 /* malloc can be invoked even before main (e.g. by the dynamic
657 linker), so the dumped malloc state must be restored as early as
658 possible using this special hook. */
661 malloc_initialize_hook ()
663 extern char **environ
;
667 if (!malloc_using_checking
)
668 /* Work around a bug in glibc's malloc. MALLOC_CHECK_ must be
669 ignored if the heap to be restored was constructed without
670 malloc checking. Can't use unsetenv, since that calls malloc. */
674 for (p
= environ
; *p
; p
++)
675 if (strncmp (*p
, "MALLOC_CHECK_=", 14) == 0)
684 malloc_set_state (malloc_state_ptr
);
685 free (malloc_state_ptr
);
688 malloc_using_checking
= getenv ("MALLOC_CHECK_") != NULL
;
691 void (*__malloc_initialize_hook
) () = malloc_initialize_hook
;
693 #endif /* DOUG_LEA_MALLOC */
697 main (argc
, argv
, envp
)
705 char stack_bottom_variable
;
706 int do_initial_setlocale
;
710 #ifdef HAVE_SETRLIMIT
716 extern Lisp_Object
*stack_base
;
720 #ifdef LINUX_SBRK_BUG
724 #ifdef RUN_TIME_REMAP
726 run_time_remap (argv
[0]);
729 sort_args (argc
, argv
);
731 while (argv
[argc
]) argc
++;
733 if (argmatch (argv
, argc
, "-version", "--version", 3, NULL
, &skip_args
)
734 /* We don't know the version number unless this is a dumped Emacs.
735 So ignore --version otherwise. */
739 tem
= Fsymbol_value (intern ("emacs-version"));
742 fprintf (stderr
, "Invalid value of `emacs-version'\n");
747 printf ("GNU Emacs %s\n", XSTRING (tem
)->data
);
748 printf ("Copyright (C) 1999 Free Software Foundation, Inc.\n");
749 printf ("GNU Emacs comes with ABSOLUTELY NO WARRANTY.\n");
750 printf ("You may redistribute copies of Emacs\n");
751 printf ("under the terms of the GNU General Public License.\n");
752 printf ("For more information about these matters, ");
753 printf ("see the file named COPYING.\n");
758 /* Map in shared memory, if we are using that. */
760 if (argmatch (argv
, argc
, "-nl", "--no-shared-memory", 6, NULL
, &skip_args
))
763 /* The shared memory was just restored, which clobbered this. */
769 /* The shared memory was just restored, which clobbered this. */
776 extern int malloc_cookie
;
777 /* This helps out unexnext.c. */
779 if (malloc_jumpstart (malloc_cookie
) != 0)
780 printf ("malloc jumpstart failed!\n");
785 /* If -map specified, map the data file in */
788 if (argmatch (argv
, argc
, "-map", "--map-data", 3, &mapin_file
, &skip_args
))
792 #ifdef LINK_CRTL_SHARE
793 #ifdef SHARABLE_LIB_BUG
794 /* Bletcherous shared libraries! */
796 stdin
= fdopen (0, "r");
798 stdout
= fdopen (1, "w");
800 stderr
= fdopen (2, "w");
803 #endif /* SHARABLE_LIB_BUG */
804 #endif /* LINK_CRTL_SHARE */
807 #if defined (HAVE_SETRLIMIT) && defined (RLIMIT_STACK)
808 /* Extend the stack space available.
809 Don't do that if dumping, since some systems (e.g. DJGPP)
810 might define a smaller stack limit at that time. */
813 && (!noninteractive
|| initialized
)
815 && !getrlimit (RLIMIT_STACK
, &rlim
))
818 extern int re_max_failures
;
819 /* Approximate the amount regex.c needs per unit of re_max_failures. */
820 int ratio
= 20 * sizeof (char *);
821 /* Then add 33% to cover the size of the smaller stacks that regex.c
822 successively allocates and discards, on its way to the maximum. */
824 /* Add in some extra to cover
825 what we're likely to use for other reasons. */
826 newlim
= re_max_failures
* ratio
+ 200000;
828 /* NetBSD (at least NetBSD 1.2G and former) has a bug in its
829 stack allocation routine for new process that the allocation
830 fails if stack limit is not on page boundary. So, round up the
831 new limit to page boundary. */
832 newlim
= (newlim
+ getpagesize () - 1) / getpagesize () * getpagesize();
834 if (newlim
> rlim
.rlim_max
)
836 newlim
= rlim
.rlim_max
;
837 /* Don't let regex.c overflow the stack we have. */
838 re_max_failures
= (newlim
- 200000) / ratio
;
840 if (rlim
.rlim_cur
< newlim
)
841 rlim
.rlim_cur
= newlim
;
843 setrlimit (RLIMIT_STACK
, &rlim
);
845 #endif /* HAVE_SETRLIMIT and RLIMIT_STACK */
847 /* Record (approximately) where the stack begins. */
848 stack_bottom
= &stack_bottom_variable
;
850 #ifdef USG_SHARED_LIBRARIES
852 brk ((void *)bss_end
);
857 #ifndef SYSTEM_MALLOC
858 /* Arrange to get warning messages as memory fills up. */
859 memory_warnings (0, malloc_warning
);
861 /* Call malloc at least once, to run the initial __malloc_hook.
862 Also call realloc and free for consistency. */
863 free (realloc (malloc (4), 4));
865 /* Arrange to disable interrupt input inside malloc etc. */
866 uninterrupt_malloc ();
867 #endif /* not SYSTEM_MALLOC */
870 /* We do all file input/output as binary files. When we need to translate
871 newlines, we do that manually. */
875 if (!isatty (fileno (stdin
)))
876 setmode (fileno (stdin
), O_BINARY
);
877 if (!isatty (fileno (stdout
)))
880 setmode (fileno (stdout
), O_BINARY
);
882 #else /* not __DJGPP__ >= 2 */
883 (stdin
)->_flag
&= ~_IOTEXT
;
884 (stdout
)->_flag
&= ~_IOTEXT
;
885 (stderr
)->_flag
&= ~_IOTEXT
;
886 #endif /* not __DJGPP__ >= 2 */
889 #ifdef SET_EMACS_PRIORITY
891 nice (emacs_priority
);
893 #endif /* SET_EMACS_PRIORITY */
895 /* Skip initial setlocale if LC_ALL is "C", as it's not needed in that case.
896 The build procedure uses this while dumping, to ensure that the
897 dumped Emacs does not have its system locale tables initialized,
898 as that might cause screwups when the dumped Emacs starts up. */
900 char *lc_all
= getenv ("LC_ALL");
901 do_initial_setlocale
= ! lc_all
|| strcmp (lc_all
, "C");
904 /* Set locale now, so that initial error messages are localized properly.
905 fixup_locale must wait until later, since it builds strings. */
906 if (do_initial_setlocale
)
907 setlocale (LC_ALL
, "");
909 #ifdef EXTRA_INITIALIZE
913 inhibit_window_system
= 0;
915 /* Handle the -t switch, which specifies filename to use as terminal */
919 if (argmatch (argv
, argc
, "-t", "--terminal", 4, &term
, &skip_args
))
924 result
= emacs_open (term
, O_RDWR
, 0);
927 char *errstring
= strerror (errno
);
928 fprintf (stderr
, "emacs: %s: %s\n", term
, errstring
);
934 fprintf (stderr
, "emacs: %s: not a tty\n", term
);
937 fprintf (stderr
, "Using %s\n", term
);
938 #ifdef HAVE_WINDOW_SYSTEM
939 inhibit_window_system
= 1; /* -t => -nw */
946 if (argmatch (argv
, argc
, "-nw", "--no-windows", 6, NULL
, &skip_args
))
947 inhibit_window_system
= 1;
949 /* Handle the -batch switch, which means don't do interactive display. */
951 if (argmatch (argv
, argc
, "-batch", "--batch", 5, NULL
, &skip_args
))
954 /* Handle the --help option, which gives a usage message.. */
955 if (argmatch (argv
, argc
, "-help", "--help", 3, NULL
, &skip_args
))
957 printf (USAGE1
, argv
[0]);
962 if (! noninteractive
)
967 inherited_pgroup
= EMACS_GETPGRP (0);
968 setpgrp (0, getpid ());
971 #if defined (USG5) && defined (INTERRUPT_INPUT)
979 /* Don't catch SIGHUP if dumping. */
986 sigblock (sigmask (SIGHUP
));
987 /* In --batch mode, don't catch SIGHUP if already ignored.
988 That makes nohup work. */
990 || signal (SIGHUP
, SIG_IGN
) != SIG_IGN
)
991 signal (SIGHUP
, fatal_error_signal
);
992 sigunblock (sigmask (SIGHUP
));
997 ! noninteractive
|| initialized
1003 /* Don't catch these signals in batch mode if dumping.
1004 On some machines, this sets static data that would make
1005 signal fail to work right when the dumped Emacs is run. */
1006 signal (SIGQUIT
, fatal_error_signal
);
1007 signal (SIGILL
, fatal_error_signal
);
1008 signal (SIGTRAP
, fatal_error_signal
);
1010 signal (SIGUSR1
, handle_USR1_signal
);
1012 signal (SIGUSR2
, handle_USR2_signal
);
1016 signal (SIGABRT
, fatal_error_signal
);
1019 signal (SIGHWE
, fatal_error_signal
);
1022 signal (SIGPRE
, fatal_error_signal
);
1025 signal (SIGORE
, fatal_error_signal
);
1028 signal (SIGUME
, fatal_error_signal
);
1031 signal (SIGDLK
, fatal_error_signal
);
1034 signal (SIGCPULIM
, fatal_error_signal
);
1037 /* This is missing on some systems - OS/2, for example. */
1038 signal (SIGIOT
, fatal_error_signal
);
1041 signal (SIGEMT
, fatal_error_signal
);
1043 signal (SIGFPE
, fatal_error_signal
);
1045 signal (SIGBUS
, fatal_error_signal
);
1047 signal (SIGSEGV
, fatal_error_signal
);
1049 signal (SIGSYS
, fatal_error_signal
);
1051 signal (SIGTERM
, fatal_error_signal
);
1053 signal (SIGXCPU
, fatal_error_signal
);
1056 signal (SIGXFSZ
, fatal_error_signal
);
1057 #endif /* SIGXFSZ */
1060 /* This just means available memory is getting low. */
1061 signal (SIGDANGER
, memory_warning_signal
);
1065 /* 20 is SIGCHLD, 21 is SIGTTIN, 22 is SIGTTOU. */
1066 signal (SIGXCPU
, fatal_error_signal
);
1068 signal (SIGIOINT
, fatal_error_signal
);
1070 signal (SIGGRANT
, fatal_error_signal
);
1071 signal (SIGRETRACT
, fatal_error_signal
);
1072 signal (SIGSOUND
, fatal_error_signal
);
1073 signal (SIGMSG
, fatal_error_signal
);
1077 noninteractive1
= noninteractive
;
1079 /* Perform basic initializations (not merely interning symbols) */
1086 init_charset_once ();
1087 init_coding_once ();
1088 init_syntax_once (); /* Create standard syntax table. */
1089 init_category_once (); /* Create standard category table. */
1090 /* Must be done before init_buffer */
1091 init_casetab_once ();
1092 init_buffer_once (); /* Create buffer table and some buffers */
1093 init_minibuf_once (); /* Create list of minibuffers */
1094 /* Must precede init_window_once */
1096 /* Call syms_of_xfaces before init_window_once because that
1097 function creates Vterminal_frame. Termcap frames now use
1098 faces, and the face implementation uses some symbols as
1101 /* Call syms_of_keyboard before init_window_once because
1102 keyboard sets up symbols that include some face names that
1103 the X support will want to use. This can happen when
1104 CANNOT_DUMP is defined. */
1105 syms_of_keyboard ();
1107 init_window_once (); /* Init the window system */
1108 init_fileio_once (); /* Must precede any path manipulation. */
1113 if (do_initial_setlocale
)
1116 Vsystem_messages_locale
= Vprevious_system_messages_locale
;
1117 Vsystem_time_locale
= Vprevious_system_time_locale
;
1123 #ifdef CLASH_DETECTION
1127 running_asynch_code
= 0;
1129 /* Handle --unibyte and the EMACS_UNIBYTE envvar,
1130 but not while dumping. */
1133 ! noninteractive
|| initialized
1139 int inhibit_unibyte
= 0;
1141 /* --multibyte overrides EMACS_UNIBYTE. */
1142 if (argmatch (argv
, argc
, "-no-unibyte", "--no-unibyte", 4, NULL
, &skip_args
)
1143 || argmatch (argv
, argc
, "-multibyte", "--multibyte", 4, NULL
, &skip_args
))
1144 inhibit_unibyte
= 1;
1146 /* --unibyte requests that we set up to do everything with single-byte
1147 buffers and strings. We need to handle this before calling
1148 init_lread, init_editfns and other places that generate Lisp strings
1149 from text in the environment. */
1150 /* Actually this shouldn't be needed as of 20.4 in a generally
1151 unibyte environment. As handa says, environment values
1152 aren't now decoded; also existing buffers are now made
1153 unibyte during startup if .emacs sets unibyte. Tested with
1154 8-bit data in environment variables and /etc/passwd, setting
1155 unibyte and Latin-1 in .emacs. -- Dave Love */
1156 if (argmatch (argv
, argc
, "-unibyte", "--unibyte", 4, NULL
, &skip_args
)
1157 || argmatch (argv
, argc
, "-no-multibyte", "--no-multibyte", 4, NULL
, &skip_args
)
1158 || (getenv ("EMACS_UNIBYTE") && !inhibit_unibyte
))
1160 Lisp_Object old_log_max
;
1161 Lisp_Object symbol
, tail
;
1163 symbol
= intern ("default-enable-multibyte-characters");
1164 Fset (symbol
, Qnil
);
1168 /* Erase pre-dump messages in *Messages* now so no abort. */
1169 old_log_max
= Vmessage_log_max
;
1170 XSETFASTINT (Vmessage_log_max
, 0);
1171 message_dolog ("", 0, 1, 0);
1172 Vmessage_log_max
= old_log_max
;
1175 for (tail
= Vbuffer_alist
; CONSP (tail
);
1180 buffer
= Fcdr (XCAR (tail
));
1181 /* Verify that all buffers are empty now, as they
1183 if (BUF_Z (XBUFFER (buffer
)) > BUF_BEG (XBUFFER (buffer
)))
1185 /* It is safe to do this crudely in an empty buffer. */
1186 XBUFFER (buffer
)->enable_multibyte_characters
= Qnil
;
1192 = argmatch (argv
, argc
, "-nl", "--no-loadup", 6, NULL
, &skip_args
);
1195 #ifdef HAVE_X_WINDOWS
1196 /* Stupid kludge to catch command-line display spec. We can't
1197 handle this argument entirely in window system dependent code
1198 because we don't even know which window system dependent code
1199 to run until we've recognized this argument. */
1201 char *displayname
= 0;
1202 int count_before
= skip_args
;
1204 /* Skip any number of -d options, but only use the last one. */
1207 int count_before_this
= skip_args
;
1209 if (argmatch (argv
, argc
, "-d", "--display", 3, &displayname
, &skip_args
))
1211 else if (argmatch (argv
, argc
, "-display", 0, 3, &displayname
, &skip_args
))
1216 count_before
= count_before_this
;
1219 /* If we have the form --display=NAME,
1220 convert it into -d name.
1221 This requires inserting a new element into argv. */
1222 if (displayname
!= 0 && skip_args
- count_before
== 1)
1224 char **new = (char **) xmalloc (sizeof (char *) * (argc
+ 2));
1227 for (j
= 0; j
< count_before
+ 1; j
++)
1229 new[count_before
+ 1] = "-d";
1230 new[count_before
+ 2] = displayname
;
1231 for (j
= count_before
+ 2; j
<argc
; j
++)
1232 new[j
+ 1] = argv
[j
];
1236 /* Change --display to -d, when its arg is separate. */
1237 else if (displayname
!= 0 && skip_args
> count_before
1238 && argv
[count_before
+ 1][1] == '-')
1239 argv
[count_before
+ 1] = "-d";
1241 /* Don't actually discard this arg. */
1242 skip_args
= count_before
;
1246 /* argmatch must not be used after here,
1247 except when bulding temacs
1248 because the -d argument has not been skipped in skip_args. */
1251 /* Call early 'cause init_environment needs it. */
1253 /* Set defaults for several environment variables. */
1255 init_environment (argc
, argv
, skip_args
);
1261 /* Initialize environment from registry settings. */
1262 init_environment (argv
);
1263 init_ntproc (); /* must precede init_editfns */
1266 /* egetenv is a pretty low-level facility, which may get called in
1267 many circumstances; it seems flimsy to put off initializing it
1268 until calling init_callproc. */
1269 set_process_environment ();
1270 /* AIX crashes are reported in system versions 3.2.3 and 3.2.4
1271 if this is not done. Do it after set_process_environment so that we
1272 don't pollute Vprocess_environment. */
1273 /* Setting LANG here will defeat the startup locale processing... */
1278 init_buffer (); /* Init default directory of main buffer */
1280 init_callproc_1 (); /* Must precede init_cmdargs and init_sys_modes. */
1281 init_cmdargs (argc
, argv
, skip_args
); /* Must precede init_lread. */
1285 /* Erase any pre-dump messages in the message log, to avoid confusion */
1286 Lisp_Object old_log_max
;
1287 old_log_max
= Vmessage_log_max
;
1288 XSETFASTINT (Vmessage_log_max
, 0);
1289 message_dolog ("", 0, 1, 0);
1290 Vmessage_log_max
= old_log_max
;
1293 init_callproc (); /* Must follow init_cmdargs but not init_sys_modes. */
1296 /* Intern the names of all standard functions and variables;
1297 define standard keys. */
1301 /* The basic levels of Lisp must come first */
1302 /* And data must come first of all
1303 for the sake of symbols like error-message */
1310 syms_of_floatfns ();
1314 syms_of_bytecode ();
1316 syms_of_casefiddle ();
1318 syms_of_callproc ();
1319 syms_of_category ();
1323 #ifndef NO_DIR_LIBRARY
1325 #endif /* not NO_DIR_LIBRARY */
1331 syms_of_coding (); /* This should be after syms_of_fileio. */
1332 #ifdef CLASH_DETECTION
1333 syms_of_filelock ();
1334 #endif /* CLASH_DETECTION */
1341 syms_of_mocklisp ();
1352 syms_of_textprop ();
1353 syms_of_composite ();
1359 #endif /* WINDOWSNT */
1362 #ifdef HAVE_X_WINDOWS
1369 #endif /* HAVE_X_WINDOWS */
1378 syms_of_w32select ();
1381 #endif /* HAVE_NTGUI */
1391 keys_of_casefiddle ();
1394 keys_of_keyboard ();
1402 if (!noninteractive
)
1405 init_vms_input ();/* init_display calls get_frame_size, that needs this */
1407 init_display (); /* Determine terminal type. init_sys_modes uses results */
1409 init_keyboard (); /* This too must precede init_sys_modes */
1411 init_vmsproc (); /* And this too. */
1413 init_sys_modes (); /* Init system terminal modes (RAW or CBREAK, etc.) */
1414 #ifdef HAVE_X_WINDOWS
1416 #endif /* HAVE_X_WINDOWS */
1434 /* Handle -l loadup, args passed by Makefile. */
1435 if (argmatch (argv
, argc
, "-l", "--load", 3, &file
, &skip_args
))
1436 Vtop_level
= Fcons (intern ("load"),
1437 Fcons (build_string (file
), Qnil
));
1439 /* Unless next switch is -nl, load "loadup.el" first thing. */
1441 Vtop_level
= Fcons (intern ("load"),
1442 Fcons (build_string ("loadup.el"), Qnil
));
1443 #endif /* CANNOT_DUMP */
1450 /* If the execution TZ happens to be the same as the dump TZ,
1451 change it to some other value and then change it back,
1452 to force the underlying implementation to reload the TZ info.
1453 This is needed on implementations that load TZ info from files,
1454 since the TZ file contents may differ between dump and execution. */
1455 char *tz
= getenv ("TZ");
1456 if (tz
&& !strcmp (tz
, dump_tz
))
1466 /* Gerd Moellmann <gerd@acm.org> says this makes profiling work on
1467 FreeBSD. It might work on some other systems too.
1468 Give it a try and tell me if it works on your system. */
1469 #if defined (__FreeBSD__) || defined (__linux)
1473 extern void _mcleanup ();
1475 extern void safe_bcopy ();
1476 extern void dump_opcode_frequencies ();
1479 /* This uses safe_bcopy because that function comes first in the
1480 Emacs executable. It might be better to use something that
1481 gives the start of the text segment, but start_of_text is not
1482 defined on all systems now. */
1483 monstartup (safe_bcopy
, &etext
);
1492 #ifdef LOCALTIME_CACHE
1493 /* Some versions of localtime have a bug. They cache the value of the time
1494 zone rather than looking it up every time. Since localtime() is
1495 called to bolt the undumping time into the undumped emacs, this
1496 results in localtime ignoring the TZ environment variable.
1497 This flushes the new TZ value into localtime. */
1499 #endif /* defined (LOCALTIME_CACHE) */
1501 /* Enter editor command loop. This never returns. */
1506 /* Sort the args so we can find the most important ones
1507 at the beginning of argv. */
1509 /* First, here's a table of all the standard options. */
1511 struct standard_args
1519 struct standard_args standard_args
[] =
1521 { "-version", "--version", 150, 0 },
1523 { "-nl", "--no-shared-memory", 140, 0 },
1526 { "-map", "--map-data", 130, 0 },
1528 { "-t", "--terminal", 120, 1 },
1529 { "-nw", "--no-windows", 110, 0 },
1530 { "-batch", "--batch", 100, 0 },
1531 { "-help", "--help", 90, 0 },
1532 { "-no-unibyte", "--no-unibyte", 83, 0 },
1533 { "-multibyte", "--multibyte", 82, 0 },
1534 { "-unibyte", "--unibyte", 81, 0 },
1535 { "-no-multibyte", "--no-multibyte", 80, 0 },
1537 { "-nl", "--no-loadup", 70, 0 },
1539 /* -d must come last before the options handled in startup.el. */
1540 { "-d", "--display", 60, 1 },
1541 { "-display", 0, 60, 1 },
1542 /* Now for the options handled in startup.el. */
1543 { "-q", "--no-init-file", 50, 0 },
1544 { "-no-init-file", 0, 50, 0 },
1545 { "-no-site-file", "--no-site-file", 40, 0 },
1546 { "-u", "--user", 30, 1 },
1547 { "-user", 0, 30, 1 },
1548 { "-debug-init", "--debug-init", 20, 0 },
1549 { "-i", "--icon-type", 15, 0 },
1550 { "-itype", 0, 15, 0 },
1551 { "-iconic", "--iconic", 15, 0 },
1552 { "-bg", "--background-color", 10, 1 },
1553 { "-background", 0, 10, 1 },
1554 { "-fg", "--foreground-color", 10, 1 },
1555 { "-foreground", 0, 10, 1 },
1556 { "-bd", "--border-color", 10, 1 },
1557 { "-bw", "--border-width", 10, 1 },
1558 { "-ib", "--internal-border", 10, 1 },
1559 { "-ms", "--mouse-color", 10, 1 },
1560 { "-cr", "--cursor-color", 10, 1 },
1561 { "-fn", "--font", 10, 1 },
1562 { "-font", 0, 10, 1 },
1563 { "-g", "--geometry", 10, 1 },
1564 { "-geometry", 0, 10, 1 },
1565 { "-T", "--title", 10, 1 },
1566 { "-title", 0, 10, 1 },
1567 { "-name", "--name", 10, 1 },
1568 { "-xrm", "--xrm", 10, 1 },
1569 { "-r", "--reverse-video", 5, 0 },
1571 { "-reverse", 0, 5, 0 },
1572 { "-hb", "--horizontal-scroll-bars", 5, 0 },
1573 { "-vb", "--vertical-scroll-bars", 5, 0 },
1574 /* These have the same priority as ordinary file name args,
1575 so they are not reordered with respect to those. */
1576 { "-L", "--directory", 0, 1 },
1577 { "-directory", 0, 0, 1 },
1578 { "-l", "--load", 0, 1 },
1579 { "-load", 0, 0, 1 },
1580 { "-f", "--funcall", 0, 1 },
1581 { "-funcall", 0, 0, 1 },
1582 { "-eval", "--eval", 0, 1 },
1583 { "-execute", "--execute", 0, 1 },
1584 { "-find-file", "--find-file", 0, 1 },
1585 { "-visit", "--visit", 0, 1 },
1586 { "-file", "--file", 0, 1 },
1587 { "-insert", "--insert", 0, 1 },
1588 /* This should be processed after ordinary file name args and the like. */
1589 { "-kill", "--kill", -10, 0 },
1592 /* Reorder the elements of ARGV (assumed to have ARGC elements)
1593 so that the highest priority ones come first.
1594 Do not change the order of elements of equal priority.
1595 If an option takes an argument, keep it and its argument together.
1597 If an option that takes no argument appears more
1598 than once, eliminate all but one copy of it. */
1601 sort_args (argc
, argv
)
1605 char **new = (char **) xmalloc (sizeof (char *) * argc
);
1606 /* For each element of argv,
1607 the corresponding element of options is:
1608 0 for an option that takes no arguments,
1609 1 for an option that takes one argument, etc.
1610 -1 for an ordinary non-option argument. */
1611 int *options
= (int *) xmalloc (sizeof (int) * argc
);
1612 int *priority
= (int *) xmalloc (sizeof (int) * argc
);
1614 int incoming_used
= 1;
1618 /* Categorize all the options,
1619 and figure out which argv elts are option arguments. */
1620 for (from
= 1; from
< argc
; from
++)
1624 if (argv
[from
][0] == '-')
1629 /* If we have found "--", don't consider
1630 any more arguments as options. */
1631 if (argv
[from
][1] == '-' && argv
[from
][2] == 0)
1633 /* Leave the "--", and everything following it, at the end. */
1634 for (; from
< argc
; from
++)
1636 priority
[from
] = -100;
1642 /* Look for a match with a known old-fashioned option. */
1643 for (i
= 0; i
< sizeof (standard_args
) / sizeof (standard_args
[0]); i
++)
1644 if (!strcmp (argv
[from
], standard_args
[i
].name
))
1646 options
[from
] = standard_args
[i
].nargs
;
1647 priority
[from
] = standard_args
[i
].priority
;
1648 if (from
+ standard_args
[i
].nargs
>= argc
)
1649 fatal ("Option `%s' requires an argument\n", argv
[from
]);
1650 from
+= standard_args
[i
].nargs
;
1654 /* Look for a match with a known long option.
1655 MATCH is -1 if no match so far, -2 if two or more matches so far,
1656 >= 0 (the table index of the match) if just one match so far. */
1657 if (argv
[from
][1] == '-')
1660 thislen
= strlen (argv
[from
]);
1661 equals
= index (argv
[from
], '=');
1663 thislen
= equals
- argv
[from
];
1666 i
< sizeof (standard_args
) / sizeof (standard_args
[0]); i
++)
1667 if (standard_args
[i
].longname
1668 && !strncmp (argv
[from
], standard_args
[i
].longname
,
1677 /* If we found exactly one match, use that. */
1680 options
[from
] = standard_args
[match
].nargs
;
1681 priority
[from
] = standard_args
[match
].priority
;
1682 /* If --OPTION=VALUE syntax is used,
1683 this option uses just one argv element. */
1686 if (from
+ options
[from
] >= argc
)
1687 fatal ("Option `%s' requires an argument\n", argv
[from
]);
1688 from
+= options
[from
];
1695 /* Copy the arguments, in order of decreasing priority, to NEW. */
1697 while (incoming_used
< argc
)
1700 int best_priority
= -9999;
1702 /* Find the highest priority remaining option.
1703 If several have equal priority, take the first of them. */
1704 for (from
= 1; from
< argc
; from
++)
1706 if (argv
[from
] != 0 && priority
[from
] > best_priority
)
1708 best_priority
= priority
[from
];
1711 /* Skip option arguments--they are tied to the options. */
1712 if (options
[from
] > 0)
1713 from
+= options
[from
];
1719 /* Copy the highest priority remaining option, with its args, to NEW.
1720 Unless it is a duplicate of the previous one. */
1721 if (! (options
[best
] == 0
1722 && ! strcmp (new[to
- 1], argv
[best
])))
1724 new[to
++] = argv
[best
];
1725 for (i
= 0; i
< options
[best
]; i
++)
1726 new[to
++] = argv
[best
+ i
+ 1];
1729 incoming_used
+= 1 + (options
[best
] > 0 ? options
[best
] : 0);
1731 /* Clear out this option in ARGV. */
1733 for (i
= 0; i
< options
[best
]; i
++)
1734 argv
[best
+ i
+ 1] = 0;
1737 /* If duplicate options were deleted, fill up extra space with null ptrs. */
1741 bcopy (new, argv
, sizeof (char *) * argc
);
1748 DEFUN ("kill-emacs", Fkill_emacs
, Skill_emacs
, 0, 1, "P",
1749 "Exit the Emacs job and kill it.\n\
1750 If ARG is an integer, return ARG as the exit program code.\n\
1751 If ARG is a string, stuff it as keyboard input.\n\n\
1752 The value of `kill-emacs-hook', if not void,\n\
1753 is a list of functions (of no args),\n\
1754 all of which are called before Emacs is actually killed.")
1758 struct gcpro gcpro1
;
1765 if (!NILP (Vrun_hooks
) && !noninteractive
)
1766 call1 (Vrun_hooks
, intern ("kill-emacs-hook"));
1770 /* Is it really necessary to do this deassign
1771 when we are going to exit anyway? */
1776 shut_down_emacs (0, 0, STRINGP (arg
) ? arg
: Qnil
);
1778 /* If we have an auto-save list file,
1779 kill it because we are exiting Emacs deliberately (not crashing).
1780 Do it after shut_down_emacs, which does an auto-save. */
1781 if (STRINGP (Vauto_save_list_file_name
))
1782 unlink (XSTRING (Vauto_save_list_file_name
)->data
);
1784 exit (INTEGERP (arg
) ? XINT (arg
)
1795 /* Perform an orderly shutdown of Emacs. Autosave any modified
1796 buffers, kill any child processes, clean up the terminal modes (if
1797 we're in the foreground), and other stuff like that. Don't perform
1798 any redisplay; this may be called when Emacs is shutting down in
1799 the background, or after its X connection has died.
1801 If SIG is a signal number, print a message for it.
1803 This is called by fatal signal handlers, X protocol error handlers,
1807 shut_down_emacs (sig
, no_x
, stuff
)
1811 /* Prevent running of hooks from now on. */
1814 /* If we are controlling the terminal, reset terminal modes */
1815 #ifdef EMACS_HAVE_TTY_PGRP
1817 int pgrp
= EMACS_GETPGRP (0);
1820 if (EMACS_GET_TTY_PGRP (0, &tpgrp
) != -1
1825 if (sig
&& sig
!= SIGTERM
)
1826 fprintf (stderr
, "Fatal error (%d).", sig
);
1834 stuff_buffered_input (stuff
);
1836 kill_buffer_processes (Qnil
);
1837 Fdo_auto_save (Qt
, Qnil
);
1839 #ifdef CLASH_DETECTION
1840 unlock_all_files ();
1844 kill_vms_processes ();
1847 #if 0 /* This triggers a bug in XCloseDisplay and is not needed. */
1848 #ifdef HAVE_X_WINDOWS
1849 /* It's not safe to call intern here. Maybe we are crashing. */
1850 if (!noninteractive
&& SYMBOLP (Vwindow_system
)
1851 && XSYMBOL (Vwindow_system
)->name
->size
== 1
1852 && XSYMBOL (Vwindow_system
)->name
->data
[0] == 'x'
1854 Fx_close_current_connection ();
1855 #endif /* HAVE_X_WINDOWS */
1859 /* There is a tendency for a SIGIO signal to arrive within exit,
1860 and cause a SIGHUP because the input descriptor is already closed. */
1862 signal (SIGIO
, SIG_IGN
);
1869 check_glyph_memory ();
1870 check_message_stack ();
1883 DEFUN ("dump-emacs-data", Fdump_emacs_data
, Sdump_emacs_data
, 1, 1, 0,
1884 "Dump current state of Emacs into data file FILENAME.\n\
1885 This function exists on systems that use HAVE_SHM.")
1887 Lisp_Object filename
;
1889 extern char my_edata
[];
1892 CHECK_STRING (filename
, 0);
1893 filename
= Fexpand_file_name (filename
, Qnil
);
1896 Vpurify_flag
= Qnil
;
1899 /* Tell malloc where start of impure now is */
1900 /* Also arrange for warnings when nearly out of space. */
1901 #ifndef SYSTEM_MALLOC
1902 memory_warnings (my_edata
, malloc_warning
);
1904 map_out_data (XSTRING (filename
)->data
);
1911 #else /* not HAVE_SHM */
1913 DEFUN ("dump-emacs", Fdump_emacs
, Sdump_emacs
, 2, 2, 0,
1914 "Dump current state of Emacs into executable file FILENAME.\n\
1915 Take symbols from SYMFILE (presumably the file you executed to run Emacs).\n\
1916 This is used in the file `loadup.el' when building Emacs.\n\
1918 You must run Emacs in batch mode in order to dump it.")
1920 Lisp_Object filename
, symfile
;
1922 extern char my_edata
[];
1925 int count
= specpdl_ptr
- specpdl
;
1927 if (! noninteractive
)
1928 error ("Dumping Emacs works only in batch mode");
1930 /* Bind `command-line-processed' to nil before dumping,
1931 so that the dumped Emacs will process its command line
1932 and set up to work with X windows if appropriate. */
1933 symbol
= intern ("command-line-process");
1934 specbind (symbol
, Qnil
);
1936 CHECK_STRING (filename
, 0);
1937 filename
= Fexpand_file_name (filename
, Qnil
);
1938 if (!NILP (symfile
))
1940 CHECK_STRING (symfile
, 0);
1941 if (XSTRING (symfile
)->size
)
1942 symfile
= Fexpand_file_name (symfile
, Qnil
);
1946 Vpurify_flag
= Qnil
;
1949 set_time_zone_rule (dump_tz
);
1950 #ifndef LOCALTIME_CACHE
1951 /* Force a tz reload, since set_time_zone_rule doesn't. */
1958 mapout_data (XSTRING (filename
)->data
);
1960 /* Tell malloc where start of impure now is */
1961 /* Also arrange for warnings when nearly out of space. */
1962 #ifndef SYSTEM_MALLOC
1964 /* On Windows, this was done before dumping, and that once suffices.
1965 Meanwhile, my_edata is not valid on Windows. */
1966 memory_warnings (my_edata
, malloc_warning
);
1967 #endif /* not WINDOWSNT */
1969 #ifdef DOUG_LEA_MALLOC
1970 malloc_state_ptr
= malloc_get_state ();
1972 unexec (XSTRING (filename
)->data
,
1973 !NILP (symfile
) ? XSTRING (symfile
)->data
: 0, my_edata
, 0, 0);
1974 #ifdef DOUG_LEA_MALLOC
1975 free (malloc_state_ptr
);
1977 #endif /* not VMS */
1981 return unbind_to (count
, Qnil
);
1984 #endif /* not HAVE_SHM */
1986 #endif /* not CANNOT_DUMP */
1989 /* Recover from setlocale (LC_ALL, ""). */
1993 /* The Emacs Lisp reader needs LC_NUMERIC to be "C",
1994 so that numbers are read and printed properly for Emacs Lisp. */
1995 setlocale (LC_NUMERIC
, "C");
1998 /* Set system locale CATEGORY, with previous locale *PLOCALE, to
2001 synchronize_locale (category
, plocale
, desired_locale
)
2003 Lisp_Object
*plocale
;
2004 Lisp_Object desired_locale
;
2006 if (! EQ (*plocale
, desired_locale
))
2008 *plocale
= desired_locale
;
2009 setlocale (category
, (STRINGP (desired_locale
)
2010 ? (char *)(XSTRING (desired_locale
)->data
)
2015 /* Set system time locale to match Vsystem_time_locale, if possible. */
2017 synchronize_system_time_locale ()
2019 synchronize_locale (LC_TIME
, &Vprevious_system_time_locale
,
2020 Vsystem_time_locale
);
2023 /* Set system messages locale to match Vsystem_messages_locale, if
2026 synchronize_system_messages_locale ()
2029 synchronize_locale (LC_MESSAGES
, &Vprevious_system_messages_locale
,
2030 Vsystem_messages_locale
);
2033 #endif /* HAVE_SETLOCALE */
2040 decode_env_path (evarname
, defalt
)
2041 char *evarname
, *defalt
;
2043 register char *path
, *p
;
2044 Lisp_Object lpath
, element
, tem
;
2046 /* It's okay to use getenv here, because this function is only used
2047 to initialize variables when Emacs starts up, and isn't called
2050 path
= (char *) getenv (evarname
);
2056 /* Ensure values from the environment use the proper directory separator. */
2059 p
= alloca (strlen (path
) + 1);
2063 if ('/' == DIRECTORY_SEP
)
2064 dostounix_filename (path
);
2066 unixtodos_filename (path
);
2072 p
= index (path
, SEPCHAR
);
2073 if (!p
) p
= path
+ strlen (path
);
2074 element
= (p
- path
? make_string (path
, p
- path
)
2075 : build_string ("."));
2077 /* Add /: to the front of the name
2078 if it would otherwise be treated as magic. */
2079 tem
= Ffind_file_name_handler (element
, Qt
);
2081 element
= concat2 (build_string ("/:"), element
);
2083 lpath
= Fcons (element
, lpath
);
2089 return Fnreverse (lpath
);
2095 Qfile_name_handler_alist
= intern ("file-name-handler-alist");
2096 staticpro (&Qfile_name_handler_alist
);
2100 defsubr (&Sdump_emacs_data
);
2102 defsubr (&Sdump_emacs
);
2106 defsubr (&Skill_emacs
);
2108 defsubr (&Sinvocation_name
);
2109 defsubr (&Sinvocation_directory
);
2111 DEFVAR_LISP ("command-line-args", &Vcommand_line_args
,
2112 "Args passed by shell to Emacs, as a list of strings.");
2114 DEFVAR_LISP ("system-type", &Vsystem_type
,
2115 "Value is symbol indicating type of operating system you are using.");
2116 Vsystem_type
= intern (SYSTEM_TYPE
);
2118 DEFVAR_LISP ("system-configuration", &Vsystem_configuration
,
2119 "Value is string indicating configuration Emacs was built for.");
2120 Vsystem_configuration
= build_string (EMACS_CONFIGURATION
);
2122 DEFVAR_LISP ("system-configuration-options", &Vsystem_configuration_options
,
2123 "String containing the configuration options Emacs was built with.");
2124 Vsystem_configuration_options
= build_string (EMACS_CONFIG_OPTIONS
);
2126 DEFVAR_BOOL ("noninteractive", &noninteractive1
,
2127 "Non-nil means Emacs is running without interactive terminal.");
2129 DEFVAR_LISP ("kill-emacs-hook", &Vkill_emacs_hook
,
2130 "Hook to be run whenever kill-emacs is called.\n\
2131 Since kill-emacs may be invoked when the terminal is disconnected (or\n\
2132 in other similar situations), functions placed on this hook should not\n\
2133 expect to be able to interact with the user. To ask for confirmation,\n\
2134 see `kill-emacs-query-functions' instead.");
2135 Vkill_emacs_hook
= Qnil
;
2138 DEFVAR_LISP ("signal-USR1-hook", &Vsignal_USR1_hook
,
2139 "Hook to be run whenever emacs receives a USR1 signal");
2140 Vsignal_USR1_hook
= Qnil
;
2142 DEFVAR_LISP ("signal-USR2-hook", &Vsignal_USR2_hook
,
2143 "Hook to be run whenever emacs receives a USR2 signal");
2144 Vsignal_USR2_hook
= Qnil
;
2149 DEFVAR_INT ("emacs-priority", &emacs_priority
,
2150 "Priority for Emacs to run at.\n\
2151 This value is effective only if set before Emacs is dumped,\n\
2152 and only if the Emacs executable is installed with setuid to permit\n\
2153 it to change priority. (Emacs sets its uid back to the real uid.)\n\
2154 Currently, you need to define SET_EMACS_PRIORITY in `config.h'\n\
2155 before you compile Emacs, to enable the code for this feature.");
2158 DEFVAR_LISP ("path-separator", &Vpath_separator
,
2159 "The directory separator in search paths, as a string.");
2162 Vpath_separator
= make_string (&c
, 1);
2165 DEFVAR_LISP ("invocation-name", &Vinvocation_name
,
2166 "The program name that was used to run Emacs.\n\
2167 Any directory names are omitted.");
2169 DEFVAR_LISP ("invocation-directory", &Vinvocation_directory
,
2170 "The directory in which the Emacs executable was found, to run it.\n\
2171 The value is nil if that directory's name is not known.");
2173 DEFVAR_LISP ("installation-directory", &Vinstallation_directory
,
2174 "A directory within which to look for the `lib-src' and `etc' directories.\n\
2175 This is non-nil when we can't find those directories in their standard\n\
2176 installed locations, but we can find them\n\
2177 near where the Emacs executable was found.");
2178 Vinstallation_directory
= Qnil
;
2180 DEFVAR_LISP ("system-messages-locale", &Vsystem_messages_locale
,
2181 "System locale for messages.");
2182 Vsystem_messages_locale
= Qnil
;
2184 DEFVAR_LISP ("previous-system-messages-locale",
2185 &Vprevious_system_messages_locale
,
2186 "Most recently used system locale for messages.");
2187 Vprevious_system_messages_locale
= Qnil
;
2189 DEFVAR_LISP ("system-time-locale", &Vsystem_time_locale
,
2190 "System locale for time.");
2191 Vsystem_time_locale
= Qnil
;
2193 DEFVAR_LISP ("previous-system-time-locale", &Vprevious_system_time_locale
,
2194 "Most recently used system locale for time.");
2195 Vprevious_system_time_locale
= Qnil
;