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 ()
664 extern char **environ
;
669 if (!malloc_using_checking
)
670 /* Work around a bug in glibc's malloc. MALLOC_CHECK_ must be
671 ignored if the heap to be restored was constructed without
672 malloc checking. Can't use unsetenv, since that calls malloc. */
676 for (p
= environ
; *p
; p
++)
677 if (strncmp (*p
, "MALLOC_CHECK_=", 14) == 0)
686 malloc_set_state (malloc_state_ptr
);
687 free (malloc_state_ptr
);
690 malloc_using_checking
= getenv ("MALLOC_CHECK_") != NULL
;
693 void (*__malloc_initialize_hook
) () = malloc_initialize_hook
;
695 #endif /* DOUG_LEA_MALLOC */
699 main (argc
, argv
, envp
)
707 char stack_bottom_variable
;
708 int do_initial_setlocale
;
714 #ifdef HAVE_SETRLIMIT
720 extern Lisp_Object
*stack_base
;
724 #ifdef LINUX_SBRK_BUG
728 #ifdef RUN_TIME_REMAP
730 run_time_remap (argv
[0]);
733 sort_args (argc
, argv
);
735 while (argv
[argc
]) argc
++;
737 if (argmatch (argv
, argc
, "-version", "--version", 3, NULL
, &skip_args
)
738 /* We don't know the version number unless this is a dumped Emacs.
739 So ignore --version otherwise. */
743 tem
= Fsymbol_value (intern ("emacs-version"));
746 fprintf (stderr
, "Invalid value of `emacs-version'\n");
751 printf ("GNU Emacs %s\n", XSTRING (tem
)->data
);
752 printf ("Copyright (C) 1999 Free Software Foundation, Inc.\n");
753 printf ("GNU Emacs comes with ABSOLUTELY NO WARRANTY.\n");
754 printf ("You may redistribute copies of Emacs\n");
755 printf ("under the terms of the GNU General Public License.\n");
756 printf ("For more information about these matters, ");
757 printf ("see the file named COPYING.\n");
762 /* Map in shared memory, if we are using that. */
764 if (argmatch (argv
, argc
, "-nl", "--no-shared-memory", 6, NULL
, &skip_args
))
767 /* The shared memory was just restored, which clobbered this. */
773 /* The shared memory was just restored, which clobbered this. */
780 extern int malloc_cookie
;
781 /* This helps out unexnext.c. */
783 if (malloc_jumpstart (malloc_cookie
) != 0)
784 printf ("malloc jumpstart failed!\n");
789 /* If -map specified, map the data file in */
792 if (argmatch (argv
, argc
, "-map", "--map-data", 3, &mapin_file
, &skip_args
))
796 #ifdef LINK_CRTL_SHARE
797 #ifdef SHARABLE_LIB_BUG
798 /* Bletcherous shared libraries! */
800 stdin
= fdopen (0, "r");
802 stdout
= fdopen (1, "w");
804 stderr
= fdopen (2, "w");
807 #endif /* SHARABLE_LIB_BUG */
808 #endif /* LINK_CRTL_SHARE */
811 #if defined (HAVE_SETRLIMIT) && defined (RLIMIT_STACK)
812 /* Extend the stack space available.
813 Don't do that if dumping, since some systems (e.g. DJGPP)
814 might define a smaller stack limit at that time. */
817 && (!noninteractive
|| initialized
)
819 && !getrlimit (RLIMIT_STACK
, &rlim
))
822 extern int re_max_failures
;
823 /* Approximate the amount regex.c needs per unit of re_max_failures. */
824 int ratio
= 20 * sizeof (char *);
825 /* Then add 33% to cover the size of the smaller stacks that regex.c
826 successively allocates and discards, on its way to the maximum. */
828 /* Add in some extra to cover
829 what we're likely to use for other reasons. */
830 newlim
= re_max_failures
* ratio
+ 200000;
832 /* NetBSD (at least NetBSD 1.2G and former) has a bug in its
833 stack allocation routine for new process that the allocation
834 fails if stack limit is not on page boundary. So, round up the
835 new limit to page boundary. */
836 newlim
= (newlim
+ getpagesize () - 1) / getpagesize () * getpagesize();
838 if (newlim
> rlim
.rlim_max
)
840 newlim
= rlim
.rlim_max
;
841 /* Don't let regex.c overflow the stack we have. */
842 re_max_failures
= (newlim
- 200000) / ratio
;
844 if (rlim
.rlim_cur
< newlim
)
845 rlim
.rlim_cur
= newlim
;
847 setrlimit (RLIMIT_STACK
, &rlim
);
849 #endif /* HAVE_SETRLIMIT and RLIMIT_STACK */
851 /* Record (approximately) where the stack begins. */
852 stack_bottom
= &stack_bottom_variable
;
854 #ifdef USG_SHARED_LIBRARIES
856 brk ((void *)bss_end
);
861 #ifndef SYSTEM_MALLOC
862 /* Arrange to get warning messages as memory fills up. */
863 memory_warnings (0, malloc_warning
);
865 /* Call malloc at least once, to run the initial __malloc_hook.
866 Also call realloc and free for consistency. */
867 free (realloc (malloc (4), 4));
869 /* Arrange to disable interrupt input inside malloc etc. */
870 uninterrupt_malloc ();
871 #endif /* not SYSTEM_MALLOC */
874 /* We do all file input/output as binary files. When we need to translate
875 newlines, we do that manually. */
879 if (!isatty (fileno (stdin
)))
880 setmode (fileno (stdin
), O_BINARY
);
881 if (!isatty (fileno (stdout
)))
884 setmode (fileno (stdout
), O_BINARY
);
886 #else /* not __DJGPP__ >= 2 */
887 (stdin
)->_flag
&= ~_IOTEXT
;
888 (stdout
)->_flag
&= ~_IOTEXT
;
889 (stderr
)->_flag
&= ~_IOTEXT
;
890 #endif /* not __DJGPP__ >= 2 */
893 #ifdef SET_EMACS_PRIORITY
895 nice (emacs_priority
);
897 #endif /* SET_EMACS_PRIORITY */
899 /* Skip initial setlocale if LC_ALL is "C", as it's not needed in that case.
900 The build procedure uses this while dumping, to ensure that the
901 dumped Emacs does not have its system locale tables initialized,
902 as that might cause screwups when the dumped Emacs starts up. */
904 char *lc_all
= getenv ("LC_ALL");
905 do_initial_setlocale
= ! lc_all
|| strcmp (lc_all
, "C");
908 /* Set locale now, so that initial error messages are localized properly.
909 fixup_locale must wait until later, since it builds strings. */
910 if (do_initial_setlocale
)
911 setlocale (LC_ALL
, "");
913 #ifdef EXTRA_INITIALIZE
917 inhibit_window_system
= 0;
919 /* Handle the -t switch, which specifies filename to use as terminal */
923 if (argmatch (argv
, argc
, "-t", "--terminal", 4, &term
, &skip_args
))
928 result
= emacs_open (term
, O_RDWR
, 0);
931 char *errstring
= strerror (errno
);
932 fprintf (stderr
, "emacs: %s: %s\n", term
, errstring
);
938 fprintf (stderr
, "emacs: %s: not a tty\n", term
);
941 fprintf (stderr
, "Using %s\n", term
);
942 #ifdef HAVE_WINDOW_SYSTEM
943 inhibit_window_system
= 1; /* -t => -nw */
950 if (argmatch (argv
, argc
, "-nw", "--no-windows", 6, NULL
, &skip_args
))
951 inhibit_window_system
= 1;
953 /* Handle the -batch switch, which means don't do interactive display. */
955 if (argmatch (argv
, argc
, "-batch", "--batch", 5, NULL
, &skip_args
))
958 /* Handle the --help option, which gives a usage message.. */
959 if (argmatch (argv
, argc
, "-help", "--help", 3, NULL
, &skip_args
))
961 printf (USAGE1
, argv
[0]);
966 if (! noninteractive
)
971 inherited_pgroup
= EMACS_GETPGRP (0);
972 setpgrp (0, getpid ());
975 #if defined (USG5) && defined (INTERRUPT_INPUT)
983 /* Don't catch SIGHUP if dumping. */
990 sigblock (sigmask (SIGHUP
));
991 /* In --batch mode, don't catch SIGHUP if already ignored.
992 That makes nohup work. */
994 || signal (SIGHUP
, SIG_IGN
) != SIG_IGN
)
995 signal (SIGHUP
, fatal_error_signal
);
996 sigunblock (sigmask (SIGHUP
));
1001 ! noninteractive
|| initialized
1007 /* Don't catch these signals in batch mode if dumping.
1008 On some machines, this sets static data that would make
1009 signal fail to work right when the dumped Emacs is run. */
1010 signal (SIGQUIT
, fatal_error_signal
);
1011 signal (SIGILL
, fatal_error_signal
);
1012 signal (SIGTRAP
, fatal_error_signal
);
1014 signal (SIGUSR1
, handle_USR1_signal
);
1016 signal (SIGUSR2
, handle_USR2_signal
);
1020 signal (SIGABRT
, fatal_error_signal
);
1023 signal (SIGHWE
, fatal_error_signal
);
1026 signal (SIGPRE
, fatal_error_signal
);
1029 signal (SIGORE
, fatal_error_signal
);
1032 signal (SIGUME
, fatal_error_signal
);
1035 signal (SIGDLK
, fatal_error_signal
);
1038 signal (SIGCPULIM
, fatal_error_signal
);
1041 /* This is missing on some systems - OS/2, for example. */
1042 signal (SIGIOT
, fatal_error_signal
);
1045 signal (SIGEMT
, fatal_error_signal
);
1047 signal (SIGFPE
, fatal_error_signal
);
1049 signal (SIGBUS
, fatal_error_signal
);
1051 signal (SIGSEGV
, fatal_error_signal
);
1053 signal (SIGSYS
, fatal_error_signal
);
1055 signal (SIGTERM
, fatal_error_signal
);
1057 signal (SIGXCPU
, fatal_error_signal
);
1060 signal (SIGXFSZ
, fatal_error_signal
);
1061 #endif /* SIGXFSZ */
1064 /* This just means available memory is getting low. */
1065 signal (SIGDANGER
, memory_warning_signal
);
1069 /* 20 is SIGCHLD, 21 is SIGTTIN, 22 is SIGTTOU. */
1070 signal (SIGXCPU
, fatal_error_signal
);
1072 signal (SIGIOINT
, fatal_error_signal
);
1074 signal (SIGGRANT
, fatal_error_signal
);
1075 signal (SIGRETRACT
, fatal_error_signal
);
1076 signal (SIGSOUND
, fatal_error_signal
);
1077 signal (SIGMSG
, fatal_error_signal
);
1081 noninteractive1
= noninteractive
;
1083 /* Perform basic initializations (not merely interning symbols) */
1090 init_charset_once ();
1091 init_coding_once ();
1092 init_syntax_once (); /* Create standard syntax table. */
1093 init_category_once (); /* Create standard category table. */
1094 /* Must be done before init_buffer */
1095 init_casetab_once ();
1096 init_buffer_once (); /* Create buffer table and some buffers */
1097 init_minibuf_once (); /* Create list of minibuffers */
1098 /* Must precede init_window_once */
1100 /* Call syms_of_xfaces before init_window_once because that
1101 function creates Vterminal_frame. Termcap frames now use
1102 faces, and the face implementation uses some symbols as
1105 /* Call syms_of_keyboard before init_window_once because
1106 keyboard sets up symbols that include some face names that
1107 the X support will want to use. This can happen when
1108 CANNOT_DUMP is defined. */
1109 syms_of_keyboard ();
1111 init_window_once (); /* Init the window system */
1112 init_fileio_once (); /* Must precede any path manipulation. */
1117 if (do_initial_setlocale
)
1120 Vsystem_messages_locale
= Vprevious_system_messages_locale
;
1121 Vsystem_time_locale
= Vprevious_system_time_locale
;
1126 #ifdef CLASH_DETECTION
1130 running_asynch_code
= 0;
1132 /* Handle --unibyte and the EMACS_UNIBYTE envvar,
1133 but not while dumping. */
1136 ! noninteractive
|| initialized
1142 int inhibit_unibyte
= 0;
1144 /* --multibyte overrides EMACS_UNIBYTE. */
1145 if (argmatch (argv
, argc
, "-no-unibyte", "--no-unibyte", 4, NULL
, &skip_args
)
1146 || argmatch (argv
, argc
, "-multibyte", "--multibyte", 4, NULL
, &skip_args
))
1147 inhibit_unibyte
= 1;
1149 /* --unibyte requests that we set up to do everything with single-byte
1150 buffers and strings. We need to handle this before calling
1151 init_lread, init_editfns and other places that generate Lisp strings
1152 from text in the environment. */
1153 /* Actually this shouldn't be needed as of 20.4 in a generally
1154 unibyte environment. As handa says, environment values
1155 aren't now decoded; also existing buffers are now made
1156 unibyte during startup if .emacs sets unibyte. Tested with
1157 8-bit data in environment variables and /etc/passwd, setting
1158 unibyte and Latin-1 in .emacs. -- Dave Love */
1159 if (argmatch (argv
, argc
, "-unibyte", "--unibyte", 4, NULL
, &skip_args
)
1160 || argmatch (argv
, argc
, "-no-multibyte", "--no-multibyte", 4, NULL
, &skip_args
)
1161 || (getenv ("EMACS_UNIBYTE") && !inhibit_unibyte
))
1163 Lisp_Object old_log_max
;
1164 Lisp_Object symbol
, tail
;
1166 symbol
= intern ("default-enable-multibyte-characters");
1167 Fset (symbol
, Qnil
);
1171 /* Erase pre-dump messages in *Messages* now so no abort. */
1172 old_log_max
= Vmessage_log_max
;
1173 XSETFASTINT (Vmessage_log_max
, 0);
1174 message_dolog ("", 0, 1, 0);
1175 Vmessage_log_max
= old_log_max
;
1178 for (tail
= Vbuffer_alist
; CONSP (tail
);
1183 buffer
= Fcdr (XCAR (tail
));
1184 /* Verify that all buffers are empty now, as they
1186 if (BUF_Z (XBUFFER (buffer
)) > BUF_BEG (XBUFFER (buffer
)))
1188 /* It is safe to do this crudely in an empty buffer. */
1189 XBUFFER (buffer
)->enable_multibyte_characters
= Qnil
;
1195 = argmatch (argv
, argc
, "-nl", "--no-loadup", 6, NULL
, &skip_args
);
1198 #ifdef HAVE_X_WINDOWS
1199 /* Stupid kludge to catch command-line display spec. We can't
1200 handle this argument entirely in window system dependent code
1201 because we don't even know which window system dependent code
1202 to run until we've recognized this argument. */
1204 char *displayname
= 0;
1205 int count_before
= skip_args
;
1207 /* Skip any number of -d options, but only use the last one. */
1210 int count_before_this
= skip_args
;
1212 if (argmatch (argv
, argc
, "-d", "--display", 3, &displayname
, &skip_args
))
1214 else if (argmatch (argv
, argc
, "-display", 0, 3, &displayname
, &skip_args
))
1219 count_before
= count_before_this
;
1222 /* If we have the form --display=NAME,
1223 convert it into -d name.
1224 This requires inserting a new element into argv. */
1225 if (displayname
!= 0 && skip_args
- count_before
== 1)
1227 char **new = (char **) xmalloc (sizeof (char *) * (argc
+ 2));
1230 for (j
= 0; j
< count_before
+ 1; j
++)
1232 new[count_before
+ 1] = "-d";
1233 new[count_before
+ 2] = displayname
;
1234 for (j
= count_before
+ 2; j
<argc
; j
++)
1235 new[j
+ 1] = argv
[j
];
1239 /* Change --display to -d, when its arg is separate. */
1240 else if (displayname
!= 0 && skip_args
> count_before
1241 && argv
[count_before
+ 1][1] == '-')
1242 argv
[count_before
+ 1] = "-d";
1244 /* Don't actually discard this arg. */
1245 skip_args
= count_before
;
1249 /* argmatch must not be used after here,
1250 except when bulding temacs
1251 because the -d argument has not been skipped in skip_args. */
1254 /* Call early 'cause init_environment needs it. */
1256 /* Set defaults for several environment variables. */
1258 init_environment (argc
, argv
, skip_args
);
1264 /* Initialize environment from registry settings. */
1265 init_environment (argv
);
1266 init_ntproc (); /* must precede init_editfns */
1269 /* egetenv is a pretty low-level facility, which may get called in
1270 many circumstances; it seems flimsy to put off initializing it
1271 until calling init_callproc. */
1272 set_process_environment ();
1273 /* AIX crashes are reported in system versions 3.2.3 and 3.2.4
1274 if this is not done. Do it after set_process_environment so that we
1275 don't pollute Vprocess_environment. */
1276 /* Setting LANG here will defeat the startup locale processing... */
1281 init_buffer (); /* Init default directory of main buffer */
1283 init_callproc_1 (); /* Must precede init_cmdargs and init_sys_modes. */
1284 init_cmdargs (argc
, argv
, skip_args
); /* Must precede init_lread. */
1288 /* Erase any pre-dump messages in the message log, to avoid confusion */
1289 Lisp_Object old_log_max
;
1290 old_log_max
= Vmessage_log_max
;
1291 XSETFASTINT (Vmessage_log_max
, 0);
1292 message_dolog ("", 0, 1, 0);
1293 Vmessage_log_max
= old_log_max
;
1296 init_callproc (); /* Must follow init_cmdargs but not init_sys_modes. */
1299 /* Intern the names of all standard functions and variables;
1300 define standard keys. */
1304 /* The basic levels of Lisp must come first */
1305 /* And data must come first of all
1306 for the sake of symbols like error-message */
1313 syms_of_floatfns ();
1317 syms_of_bytecode ();
1319 syms_of_casefiddle ();
1321 syms_of_callproc ();
1322 syms_of_category ();
1326 #ifndef NO_DIR_LIBRARY
1328 #endif /* not NO_DIR_LIBRARY */
1334 syms_of_coding (); /* This should be after syms_of_fileio. */
1335 #ifdef CLASH_DETECTION
1336 syms_of_filelock ();
1337 #endif /* CLASH_DETECTION */
1344 syms_of_mocklisp ();
1355 syms_of_textprop ();
1356 syms_of_composite ();
1362 #endif /* WINDOWSNT */
1365 #ifdef HAVE_X_WINDOWS
1372 #endif /* HAVE_X_WINDOWS */
1381 syms_of_w32select ();
1384 #endif /* HAVE_NTGUI */
1394 keys_of_casefiddle ();
1397 keys_of_keyboard ();
1405 if (!noninteractive
)
1408 init_vms_input ();/* init_display calls get_frame_size, that needs this */
1410 init_display (); /* Determine terminal type. init_sys_modes uses results */
1412 init_keyboard (); /* This too must precede init_sys_modes */
1414 init_vmsproc (); /* And this too. */
1416 init_sys_modes (); /* Init system terminal modes (RAW or CBREAK, etc.) */
1417 #ifdef HAVE_X_WINDOWS
1419 #endif /* HAVE_X_WINDOWS */
1437 /* Handle -l loadup, args passed by Makefile. */
1438 if (argmatch (argv
, argc
, "-l", "--load", 3, &file
, &skip_args
))
1439 Vtop_level
= Fcons (intern ("load"),
1440 Fcons (build_string (file
), Qnil
));
1442 /* Unless next switch is -nl, load "loadup.el" first thing. */
1444 Vtop_level
= Fcons (intern ("load"),
1445 Fcons (build_string ("loadup.el"), Qnil
));
1446 #endif /* CANNOT_DUMP */
1453 /* If the execution TZ happens to be the same as the dump TZ,
1454 change it to some other value and then change it back,
1455 to force the underlying implementation to reload the TZ info.
1456 This is needed on implementations that load TZ info from files,
1457 since the TZ file contents may differ between dump and execution. */
1458 char *tz
= getenv ("TZ");
1459 if (tz
&& !strcmp (tz
, dump_tz
))
1469 /* Gerd Moellmann <gerd@acm.org> says this makes profiling work on
1470 FreeBSD. It might work on some other systems too.
1471 Give it a try and tell me if it works on your system. */
1472 #if defined (__FreeBSD__) || defined (__linux)
1476 extern void _mcleanup ();
1478 extern void safe_bcopy ();
1479 extern void dump_opcode_frequencies ();
1482 /* This uses safe_bcopy because that function comes first in the
1483 Emacs executable. It might be better to use something that
1484 gives the start of the text segment, but start_of_text is not
1485 defined on all systems now. */
1486 monstartup (safe_bcopy
, &etext
);
1495 #ifdef LOCALTIME_CACHE
1496 /* Some versions of localtime have a bug. They cache the value of the time
1497 zone rather than looking it up every time. Since localtime() is
1498 called to bolt the undumping time into the undumped emacs, this
1499 results in localtime ignoring the TZ environment variable.
1500 This flushes the new TZ value into localtime. */
1502 #endif /* defined (LOCALTIME_CACHE) */
1504 /* Enter editor command loop. This never returns. */
1509 /* Sort the args so we can find the most important ones
1510 at the beginning of argv. */
1512 /* First, here's a table of all the standard options. */
1514 struct standard_args
1522 struct standard_args standard_args
[] =
1524 { "-version", "--version", 150, 0 },
1526 { "-nl", "--no-shared-memory", 140, 0 },
1529 { "-map", "--map-data", 130, 0 },
1531 { "-t", "--terminal", 120, 1 },
1532 { "-nw", "--no-windows", 110, 0 },
1533 { "-batch", "--batch", 100, 0 },
1534 { "-help", "--help", 90, 0 },
1535 { "-no-unibyte", "--no-unibyte", 83, 0 },
1536 { "-multibyte", "--multibyte", 82, 0 },
1537 { "-unibyte", "--unibyte", 81, 0 },
1538 { "-no-multibyte", "--no-multibyte", 80, 0 },
1540 { "-nl", "--no-loadup", 70, 0 },
1542 /* -d must come last before the options handled in startup.el. */
1543 { "-d", "--display", 60, 1 },
1544 { "-display", 0, 60, 1 },
1545 /* Now for the options handled in startup.el. */
1546 { "-q", "--no-init-file", 50, 0 },
1547 { "-no-init-file", 0, 50, 0 },
1548 { "-no-site-file", "--no-site-file", 40, 0 },
1549 { "-u", "--user", 30, 1 },
1550 { "-user", 0, 30, 1 },
1551 { "-debug-init", "--debug-init", 20, 0 },
1552 { "-i", "--icon-type", 15, 0 },
1553 { "-itype", 0, 15, 0 },
1554 { "-iconic", "--iconic", 15, 0 },
1555 { "-bg", "--background-color", 10, 1 },
1556 { "-background", 0, 10, 1 },
1557 { "-fg", "--foreground-color", 10, 1 },
1558 { "-foreground", 0, 10, 1 },
1559 { "-bd", "--border-color", 10, 1 },
1560 { "-bw", "--border-width", 10, 1 },
1561 { "-ib", "--internal-border", 10, 1 },
1562 { "-ms", "--mouse-color", 10, 1 },
1563 { "-cr", "--cursor-color", 10, 1 },
1564 { "-fn", "--font", 10, 1 },
1565 { "-font", 0, 10, 1 },
1566 { "-g", "--geometry", 10, 1 },
1567 { "-geometry", 0, 10, 1 },
1568 { "-T", "--title", 10, 1 },
1569 { "-title", 0, 10, 1 },
1570 { "-name", "--name", 10, 1 },
1571 { "-xrm", "--xrm", 10, 1 },
1572 { "-r", "--reverse-video", 5, 0 },
1574 { "-reverse", 0, 5, 0 },
1575 { "-hb", "--horizontal-scroll-bars", 5, 0 },
1576 { "-vb", "--vertical-scroll-bars", 5, 0 },
1577 /* These have the same priority as ordinary file name args,
1578 so they are not reordered with respect to those. */
1579 { "-L", "--directory", 0, 1 },
1580 { "-directory", 0, 0, 1 },
1581 { "-l", "--load", 0, 1 },
1582 { "-load", 0, 0, 1 },
1583 { "-f", "--funcall", 0, 1 },
1584 { "-funcall", 0, 0, 1 },
1585 { "-eval", "--eval", 0, 1 },
1586 { "-execute", "--execute", 0, 1 },
1587 { "-find-file", "--find-file", 0, 1 },
1588 { "-visit", "--visit", 0, 1 },
1589 { "-file", "--file", 0, 1 },
1590 { "-insert", "--insert", 0, 1 },
1591 /* This should be processed after ordinary file name args and the like. */
1592 { "-kill", "--kill", -10, 0 },
1595 /* Reorder the elements of ARGV (assumed to have ARGC elements)
1596 so that the highest priority ones come first.
1597 Do not change the order of elements of equal priority.
1598 If an option takes an argument, keep it and its argument together.
1600 If an option that takes no argument appears more
1601 than once, eliminate all but one copy of it. */
1604 sort_args (argc
, argv
)
1608 char **new = (char **) xmalloc (sizeof (char *) * argc
);
1609 /* For each element of argv,
1610 the corresponding element of options is:
1611 0 for an option that takes no arguments,
1612 1 for an option that takes one argument, etc.
1613 -1 for an ordinary non-option argument. */
1614 int *options
= (int *) xmalloc (sizeof (int) * argc
);
1615 int *priority
= (int *) xmalloc (sizeof (int) * argc
);
1617 int incoming_used
= 1;
1621 /* Categorize all the options,
1622 and figure out which argv elts are option arguments. */
1623 for (from
= 1; from
< argc
; from
++)
1627 if (argv
[from
][0] == '-')
1632 /* If we have found "--", don't consider
1633 any more arguments as options. */
1634 if (argv
[from
][1] == '-' && argv
[from
][2] == 0)
1636 /* Leave the "--", and everything following it, at the end. */
1637 for (; from
< argc
; from
++)
1639 priority
[from
] = -100;
1645 /* Look for a match with a known old-fashioned option. */
1646 for (i
= 0; i
< sizeof (standard_args
) / sizeof (standard_args
[0]); i
++)
1647 if (!strcmp (argv
[from
], standard_args
[i
].name
))
1649 options
[from
] = standard_args
[i
].nargs
;
1650 priority
[from
] = standard_args
[i
].priority
;
1651 if (from
+ standard_args
[i
].nargs
>= argc
)
1652 fatal ("Option `%s' requires an argument\n", argv
[from
]);
1653 from
+= standard_args
[i
].nargs
;
1657 /* Look for a match with a known long option.
1658 MATCH is -1 if no match so far, -2 if two or more matches so far,
1659 >= 0 (the table index of the match) if just one match so far. */
1660 if (argv
[from
][1] == '-')
1663 thislen
= strlen (argv
[from
]);
1664 equals
= index (argv
[from
], '=');
1666 thislen
= equals
- argv
[from
];
1669 i
< sizeof (standard_args
) / sizeof (standard_args
[0]); i
++)
1670 if (standard_args
[i
].longname
1671 && !strncmp (argv
[from
], standard_args
[i
].longname
,
1680 /* If we found exactly one match, use that. */
1683 options
[from
] = standard_args
[match
].nargs
;
1684 priority
[from
] = standard_args
[match
].priority
;
1685 /* If --OPTION=VALUE syntax is used,
1686 this option uses just one argv element. */
1689 if (from
+ options
[from
] >= argc
)
1690 fatal ("Option `%s' requires an argument\n", argv
[from
]);
1691 from
+= options
[from
];
1698 /* Copy the arguments, in order of decreasing priority, to NEW. */
1700 while (incoming_used
< argc
)
1703 int best_priority
= -9999;
1705 /* Find the highest priority remaining option.
1706 If several have equal priority, take the first of them. */
1707 for (from
= 1; from
< argc
; from
++)
1709 if (argv
[from
] != 0 && priority
[from
] > best_priority
)
1711 best_priority
= priority
[from
];
1714 /* Skip option arguments--they are tied to the options. */
1715 if (options
[from
] > 0)
1716 from
+= options
[from
];
1722 /* Copy the highest priority remaining option, with its args, to NEW.
1723 Unless it is a duplicate of the previous one. */
1724 if (! (options
[best
] == 0
1725 && ! strcmp (new[to
- 1], argv
[best
])))
1727 new[to
++] = argv
[best
];
1728 for (i
= 0; i
< options
[best
]; i
++)
1729 new[to
++] = argv
[best
+ i
+ 1];
1732 incoming_used
+= 1 + (options
[best
] > 0 ? options
[best
] : 0);
1734 /* Clear out this option in ARGV. */
1736 for (i
= 0; i
< options
[best
]; i
++)
1737 argv
[best
+ i
+ 1] = 0;
1740 /* If duplicate options were deleted, fill up extra space with null ptrs. */
1744 bcopy (new, argv
, sizeof (char *) * argc
);
1751 DEFUN ("kill-emacs", Fkill_emacs
, Skill_emacs
, 0, 1, "P",
1752 "Exit the Emacs job and kill it.\n\
1753 If ARG is an integer, return ARG as the exit program code.\n\
1754 If ARG is a string, stuff it as keyboard input.\n\n\
1755 The value of `kill-emacs-hook', if not void,\n\
1756 is a list of functions (of no args),\n\
1757 all of which are called before Emacs is actually killed.")
1761 struct gcpro gcpro1
;
1768 if (!NILP (Vrun_hooks
) && !noninteractive
)
1769 call1 (Vrun_hooks
, intern ("kill-emacs-hook"));
1773 /* Is it really necessary to do this deassign
1774 when we are going to exit anyway? */
1779 shut_down_emacs (0, 0, STRINGP (arg
) ? arg
: Qnil
);
1781 /* If we have an auto-save list file,
1782 kill it because we are exiting Emacs deliberately (not crashing).
1783 Do it after shut_down_emacs, which does an auto-save. */
1784 if (STRINGP (Vauto_save_list_file_name
))
1785 unlink (XSTRING (Vauto_save_list_file_name
)->data
);
1787 exit (INTEGERP (arg
) ? XINT (arg
)
1798 /* Perform an orderly shutdown of Emacs. Autosave any modified
1799 buffers, kill any child processes, clean up the terminal modes (if
1800 we're in the foreground), and other stuff like that. Don't perform
1801 any redisplay; this may be called when Emacs is shutting down in
1802 the background, or after its X connection has died.
1804 If SIG is a signal number, print a message for it.
1806 This is called by fatal signal handlers, X protocol error handlers,
1810 shut_down_emacs (sig
, no_x
, stuff
)
1814 /* Prevent running of hooks from now on. */
1817 /* If we are controlling the terminal, reset terminal modes */
1818 #ifdef EMACS_HAVE_TTY_PGRP
1820 int pgrp
= EMACS_GETPGRP (0);
1823 if (EMACS_GET_TTY_PGRP (0, &tpgrp
) != -1
1828 if (sig
&& sig
!= SIGTERM
)
1829 fprintf (stderr
, "Fatal error (%d).", sig
);
1837 stuff_buffered_input (stuff
);
1839 kill_buffer_processes (Qnil
);
1840 Fdo_auto_save (Qt
, Qnil
);
1842 #ifdef CLASH_DETECTION
1843 unlock_all_files ();
1847 kill_vms_processes ();
1850 #if 0 /* This triggers a bug in XCloseDisplay and is not needed. */
1851 #ifdef HAVE_X_WINDOWS
1852 /* It's not safe to call intern here. Maybe we are crashing. */
1853 if (!noninteractive
&& SYMBOLP (Vwindow_system
)
1854 && XSYMBOL (Vwindow_system
)->name
->size
== 1
1855 && XSYMBOL (Vwindow_system
)->name
->data
[0] == 'x'
1857 Fx_close_current_connection ();
1858 #endif /* HAVE_X_WINDOWS */
1862 /* There is a tendency for a SIGIO signal to arrive within exit,
1863 and cause a SIGHUP because the input descriptor is already closed. */
1865 signal (SIGIO
, SIG_IGN
);
1872 check_glyph_memory ();
1873 check_message_stack ();
1886 DEFUN ("dump-emacs-data", Fdump_emacs_data
, Sdump_emacs_data
, 1, 1, 0,
1887 "Dump current state of Emacs into data file FILENAME.\n\
1888 This function exists on systems that use HAVE_SHM.")
1890 Lisp_Object filename
;
1892 extern char my_edata
[];
1895 CHECK_STRING (filename
, 0);
1896 filename
= Fexpand_file_name (filename
, Qnil
);
1899 Vpurify_flag
= Qnil
;
1902 /* Tell malloc where start of impure now is */
1903 /* Also arrange for warnings when nearly out of space. */
1904 #ifndef SYSTEM_MALLOC
1905 memory_warnings (my_edata
, malloc_warning
);
1907 map_out_data (XSTRING (filename
)->data
);
1914 #else /* not HAVE_SHM */
1916 DEFUN ("dump-emacs", Fdump_emacs
, Sdump_emacs
, 2, 2, 0,
1917 "Dump current state of Emacs into executable file FILENAME.\n\
1918 Take symbols from SYMFILE (presumably the file you executed to run Emacs).\n\
1919 This is used in the file `loadup.el' when building Emacs.\n\
1921 You must run Emacs in batch mode in order to dump it.")
1923 Lisp_Object filename
, symfile
;
1925 extern char my_edata
[];
1928 int count
= specpdl_ptr
- specpdl
;
1930 if (! noninteractive
)
1931 error ("Dumping Emacs works only in batch mode");
1933 /* Bind `command-line-processed' to nil before dumping,
1934 so that the dumped Emacs will process its command line
1935 and set up to work with X windows if appropriate. */
1936 symbol
= intern ("command-line-process");
1937 specbind (symbol
, Qnil
);
1939 CHECK_STRING (filename
, 0);
1940 filename
= Fexpand_file_name (filename
, Qnil
);
1941 if (!NILP (symfile
))
1943 CHECK_STRING (symfile
, 0);
1944 if (XSTRING (symfile
)->size
)
1945 symfile
= Fexpand_file_name (symfile
, Qnil
);
1949 Vpurify_flag
= Qnil
;
1952 set_time_zone_rule (dump_tz
);
1953 #ifndef LOCALTIME_CACHE
1954 /* Force a tz reload, since set_time_zone_rule doesn't. */
1961 mapout_data (XSTRING (filename
)->data
);
1963 /* Tell malloc where start of impure now is */
1964 /* Also arrange for warnings when nearly out of space. */
1965 #ifndef SYSTEM_MALLOC
1967 /* On Windows, this was done before dumping, and that once suffices.
1968 Meanwhile, my_edata is not valid on Windows. */
1969 memory_warnings (my_edata
, malloc_warning
);
1970 #endif /* not WINDOWSNT */
1972 #ifdef DOUG_LEA_MALLOC
1973 malloc_state_ptr
= malloc_get_state ();
1975 unexec (XSTRING (filename
)->data
,
1976 !NILP (symfile
) ? XSTRING (symfile
)->data
: 0, my_edata
, 0, 0);
1977 #ifdef DOUG_LEA_MALLOC
1978 free (malloc_state_ptr
);
1980 #endif /* not VMS */
1984 return unbind_to (count
, Qnil
);
1987 #endif /* not HAVE_SHM */
1989 #endif /* not CANNOT_DUMP */
1992 /* Recover from setlocale (LC_ALL, ""). */
1996 /* The Emacs Lisp reader needs LC_NUMERIC to be "C",
1997 so that numbers are read and printed properly for Emacs Lisp. */
1998 setlocale (LC_NUMERIC
, "C");
2001 /* Set system locale CATEGORY, with previous locale *PLOCALE, to
2004 synchronize_locale (category
, plocale
, desired_locale
)
2006 Lisp_Object
*plocale
;
2007 Lisp_Object desired_locale
;
2009 if (! EQ (*plocale
, desired_locale
))
2011 *plocale
= desired_locale
;
2012 setlocale (category
, (STRINGP (desired_locale
)
2013 ? (char *)(XSTRING (desired_locale
)->data
)
2018 /* Set system time locale to match Vsystem_time_locale, if possible. */
2020 synchronize_system_time_locale ()
2022 synchronize_locale (LC_TIME
, &Vprevious_system_time_locale
,
2023 Vsystem_time_locale
);
2026 /* Set system messages locale to match Vsystem_messages_locale, if
2029 synchronize_system_messages_locale ()
2032 synchronize_locale (LC_MESSAGES
, &Vprevious_system_messages_locale
,
2033 Vsystem_messages_locale
);
2036 #endif /* HAVE_SETLOCALE */
2043 decode_env_path (evarname
, defalt
)
2044 char *evarname
, *defalt
;
2046 register char *path
, *p
;
2047 Lisp_Object lpath
, element
, tem
;
2049 /* It's okay to use getenv here, because this function is only used
2050 to initialize variables when Emacs starts up, and isn't called
2053 path
= (char *) getenv (evarname
);
2059 /* Ensure values from the environment use the proper directory separator. */
2062 p
= alloca (strlen (path
) + 1);
2066 if ('/' == DIRECTORY_SEP
)
2067 dostounix_filename (path
);
2069 unixtodos_filename (path
);
2075 p
= index (path
, SEPCHAR
);
2076 if (!p
) p
= path
+ strlen (path
);
2077 element
= (p
- path
? make_string (path
, p
- path
)
2078 : build_string ("."));
2080 /* Add /: to the front of the name
2081 if it would otherwise be treated as magic. */
2082 tem
= Ffind_file_name_handler (element
, Qt
);
2084 element
= concat2 (build_string ("/:"), element
);
2086 lpath
= Fcons (element
, lpath
);
2092 return Fnreverse (lpath
);
2098 Qfile_name_handler_alist
= intern ("file-name-handler-alist");
2099 staticpro (&Qfile_name_handler_alist
);
2103 defsubr (&Sdump_emacs_data
);
2105 defsubr (&Sdump_emacs
);
2109 defsubr (&Skill_emacs
);
2111 defsubr (&Sinvocation_name
);
2112 defsubr (&Sinvocation_directory
);
2114 DEFVAR_LISP ("command-line-args", &Vcommand_line_args
,
2115 "Args passed by shell to Emacs, as a list of strings.");
2117 DEFVAR_LISP ("system-type", &Vsystem_type
,
2118 "Value is symbol indicating type of operating system you are using.");
2119 Vsystem_type
= intern (SYSTEM_TYPE
);
2121 DEFVAR_LISP ("system-configuration", &Vsystem_configuration
,
2122 "Value is string indicating configuration Emacs was built for.");
2123 Vsystem_configuration
= build_string (EMACS_CONFIGURATION
);
2125 DEFVAR_LISP ("system-configuration-options", &Vsystem_configuration_options
,
2126 "String containing the configuration options Emacs was built with.");
2127 Vsystem_configuration_options
= build_string (EMACS_CONFIG_OPTIONS
);
2129 DEFVAR_BOOL ("noninteractive", &noninteractive1
,
2130 "Non-nil means Emacs is running without interactive terminal.");
2132 DEFVAR_LISP ("kill-emacs-hook", &Vkill_emacs_hook
,
2133 "Hook to be run whenever kill-emacs is called.\n\
2134 Since kill-emacs may be invoked when the terminal is disconnected (or\n\
2135 in other similar situations), functions placed on this hook should not\n\
2136 expect to be able to interact with the user. To ask for confirmation,\n\
2137 see `kill-emacs-query-functions' instead.");
2138 Vkill_emacs_hook
= Qnil
;
2141 DEFVAR_LISP ("signal-USR1-hook", &Vsignal_USR1_hook
,
2142 "Hook to be run whenever emacs receives a USR1 signal");
2143 Vsignal_USR1_hook
= Qnil
;
2145 DEFVAR_LISP ("signal-USR2-hook", &Vsignal_USR2_hook
,
2146 "Hook to be run whenever emacs receives a USR2 signal");
2147 Vsignal_USR2_hook
= Qnil
;
2152 DEFVAR_INT ("emacs-priority", &emacs_priority
,
2153 "Priority for Emacs to run at.\n\
2154 This value is effective only if set before Emacs is dumped,\n\
2155 and only if the Emacs executable is installed with setuid to permit\n\
2156 it to change priority. (Emacs sets its uid back to the real uid.)\n\
2157 Currently, you need to define SET_EMACS_PRIORITY in `config.h'\n\
2158 before you compile Emacs, to enable the code for this feature.");
2161 DEFVAR_LISP ("path-separator", &Vpath_separator
,
2162 "The directory separator in search paths, as a string.");
2165 Vpath_separator
= make_string (&c
, 1);
2168 DEFVAR_LISP ("invocation-name", &Vinvocation_name
,
2169 "The program name that was used to run Emacs.\n\
2170 Any directory names are omitted.");
2172 DEFVAR_LISP ("invocation-directory", &Vinvocation_directory
,
2173 "The directory in which the Emacs executable was found, to run it.\n\
2174 The value is nil if that directory's name is not known.");
2176 DEFVAR_LISP ("installation-directory", &Vinstallation_directory
,
2177 "A directory within which to look for the `lib-src' and `etc' directories.\n\
2178 This is non-nil when we can't find those directories in their standard\n\
2179 installed locations, but we can find them\n\
2180 near where the Emacs executable was found.");
2181 Vinstallation_directory
= Qnil
;
2183 DEFVAR_LISP ("system-messages-locale", &Vsystem_messages_locale
,
2184 "System locale for messages.");
2185 Vsystem_messages_locale
= Qnil
;
2187 DEFVAR_LISP ("previous-system-messages-locale",
2188 &Vprevious_system_messages_locale
,
2189 "Most recently used system locale for messages.");
2190 Vprevious_system_messages_locale
= Qnil
;
2192 DEFVAR_LISP ("system-time-locale", &Vsystem_time_locale
,
2193 "System locale for time.");
2194 Vsystem_time_locale
= Qnil
;
2196 DEFVAR_LISP ("previous-system-time-locale", &Vprevious_system_time_locale
,
2197 "Most recently used system locale for time.");
2198 Vprevious_system_time_locale
= Qnil
;