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>
67 extern void malloc_warning ();
68 extern void set_time_zone_rule ();
69 extern char *index ();
71 /* Make these values available in GDB, which doesn't see macros. */
73 EMACS_INT gdb_valbits
= VALBITS
;
74 EMACS_INT gdb_gctypebits
= GCTYPEBITS
;
75 EMACS_INT gdb_emacs_intbits
= sizeof (EMACS_INT
) * BITS_PER_CHAR
;
77 EMACS_INT gdb_data_seg_bits
= DATA_SEG_BITS
;
79 EMACS_INT gdb_data_seg_bits
= 0;
81 EMACS_INT PVEC_FLAG
= PSEUDOVECTOR_FLAG
;
83 /* Command line args from shell, as list of strings */
84 Lisp_Object Vcommand_line_args
;
86 /* The name under which Emacs was invoked, with any leading directory
88 Lisp_Object Vinvocation_name
;
90 /* The directory name from which Emacs was invoked. */
91 Lisp_Object Vinvocation_directory
;
93 /* The directory name in which to find subdirs such as lisp and etc.
94 nil means get them only from PATH_LOADSEARCH. */
95 Lisp_Object Vinstallation_directory
;
97 /* Hook run by `kill-emacs' before it does really anything. */
98 Lisp_Object Vkill_emacs_hook
;
101 /* Hooks for signal USR1 and USR2 handing */
102 Lisp_Object Vsignal_USR1_hook
;
104 Lisp_Object Vsignal_USR2_hook
;
108 /* Search path separator. */
109 Lisp_Object Vpath_separator
;
111 /* Set nonzero after Emacs has started up the first time.
112 Prevents reinitialization of the Lisp world and keymaps
113 on subsequent starts. */
116 #ifdef DOUG_LEA_MALLOC
117 /* Preserves a pointer to the memory allocated that copies that
118 static data inside glibc's malloc. */
119 void *malloc_state_ptr
;
120 /* From glibc, a routine that returns a copy of the malloc internal state. */
121 extern void *malloc_get_state ();
122 /* From glibc, a routine that overwrites the malloc internal state. */
123 extern void malloc_set_state ();
124 /* Non-zero if the MALLOC_CHECK_ enviroment variable was set while
125 dumping. Used to work around a bug in glibc's malloc. */
126 int malloc_using_checking
;
129 /* Variable whose value is symbol giving operating system type. */
130 Lisp_Object Vsystem_type
;
132 /* Variable whose value is string giving configuration built for. */
133 Lisp_Object Vsystem_configuration
;
135 /* Variable whose value is string giving configuration options,
136 for use when reporting bugs. */
137 Lisp_Object Vsystem_configuration_options
;
139 Lisp_Object Qfile_name_handler_alist
;
141 /* Current and previous system locales for messages and time. */
142 Lisp_Object Vsystem_messages_locale
;
143 Lisp_Object Vprevious_system_messages_locale
;
144 Lisp_Object Vsystem_time_locale
;
145 Lisp_Object Vprevious_system_time_locale
;
147 /* If non-zero, emacs should not attempt to use an window-specific code,
148 but instead should use the virtual terminal under which it was started */
149 int inhibit_window_system
;
151 /* If nonzero, set Emacs to run at this priority. This is also used
152 in child_setup and sys_suspend to make sure subshells run at normal
153 priority; Those functions have their own extern declaration. */
156 /* If non-zero a filter or a sentinel is running. Tested to save the match
157 data on the first attempt to change it inside asynchronous code. */
158 int running_asynch_code
;
162 extern int inherited_pgroup
;
165 #ifdef HAVE_X_WINDOWS
166 /* If non-zero, -d was specified, meaning we're using some window system. */
170 /* An address near the bottom of the stack.
171 Tells GC how to save a copy of the stack. */
174 #ifdef HAVE_WINDOW_SYSTEM
175 extern Lisp_Object Vwindow_system
;
176 #endif /* HAVE_WINDOW_SYSTEM */
178 extern Lisp_Object Vauto_save_list_file_name
;
180 #ifdef USG_SHARED_LIBRARIES
181 /* If nonzero, this is the place to put the end of the writable segment
184 unsigned int bss_end
= 0;
187 /* Nonzero means running Emacs without interactive terminal. */
191 /* Value of Lisp variable `noninteractive'.
192 Normally same as C variable `noninteractive'
193 but nothing terrible happens if user sets this one. */
197 /* Save argv and argc. */
201 static void sort_args ();
202 void syms_of_emacs ();
205 Usage: %s [OPTION-OR-FILENAME]...\n\
207 Run Emacs, the extensible, customizable, self-documenting real-time\n\
208 display editor. The recommended way to start Emacs for normal editing\n\
209 is with no options at all.\n\
211 Run M-x info RET m emacs RET m command arguments RET inside Emacs to\n\
212 read the main documentation for these command-line arguments.\n\
214 Initialization options:\n\
216 --batch do not do interactive display; implies -q\n\
217 --debug-init enable Emacs Lisp debugger during init file\n\
218 --help display this help message and exit\n\
219 --multibyte, --no-unibyte run Emacs in multibyte mode\n\
220 --no-init-file, -q load neither ~/.emacs nor default.el\n\
221 --no-shared-memory, -nl do not use shared memory\n\
222 --no-site-file do not load site-start.el\n\
223 --no-windows, -nw don't communicate with X, ignoring $DISPLAY\n\
224 --terminal, -t DEVICE use DEVICE for terminal I/O\n\
225 --unibyte, --no-multibyte run Emacs in unibyte mode\n\
226 --user, -u USER load ~USER/.emacs instead of your own\n\
227 --version display version information and exit\n\
231 FILE visit FILE using find-file\n\
232 +LINENUM FILE visit FILE using find-file, then go to line LINENUM\n\
233 --directory, -L DIR add DIR to variable load-path\n\
234 --eval EXPR evaluate Emacs Lisp expression EXPR\n\
235 --execute EXPR evaluate Emacs Lisp expression EXPR\n\
236 --find-file FILE visit FILE\n\
237 --funcall, -f FUNC call Emacs function FUNC with no arguments\n\
238 --insert FILE insert contents of FILE into current buffer\n\
239 --kill exit without asking for confirmation\n\
240 --load, -l FILE load FILE of Emacs Lisp code using the load function\n\
241 --visit FILE visit FILE\n\
245 --background-color, -bg COLOR window background color\n\
246 --border-color, -bd COLOR main border color\n\
247 --border-width, -bw WIDTH width of main border\n\
248 --cursor-color, -cr COLOR color of the Emacs cursor indicating point\n\
249 --display, -d DISPLAY use X server DISPLAY\n\
250 --font, -fn FONT default font; must be fixed-widthp\n\
251 --foreground-color, -fg COLOR window foreground color\n\
252 --geometry, -g GEOMETRY window geometry\n\
253 --iconic start Emacs in iconified state\n\
254 --icon-type, -i use picture of gnu for Emacs icon\n\
255 --internal-border, -ib WIDTH width between text and main border\n\
256 --mouse-color, -ms COLOR mouse cursor color in Emacs window\n\
257 --name NAME title of main Emacs window\n\
258 --reverse-video, -r, -rv switch foreground and background\n\
259 --title, -T, -wn, TITLE title for Emacs windows\n\
260 --vertical-scroll-bars, -vb enable vertical scroll bars\n\
261 --xrm XRESOURCES set additional X resources\n\
263 You can generally also specify long option names with a single -; for\n\
264 example, -batch as well as --batch. You can use any unambiguous\n\
265 abbreviation for a --option.\n\
267 Various environment variables and window system resources also affect\n\
268 Emacs' operation. See the main documentation.\n\
270 Report bugs to bug-gnu-emacs@gnu.org. First, please see the Bugs\n\
271 section of the Emacs manual or the file BUGS.\n"
274 /* Signal code for the fatal signal that was received */
275 int fatal_error_code
;
277 /* Nonzero if handling a fatal error already */
278 int fatal_error_in_progress
;
282 handle_USR1_signal (sig
)
285 struct input_event buf
;
287 buf
.kind
= user_signal
;
289 buf
.frame_or_window
= selected_frame
;
293 kbd_buffer_store_event (&buf
);
299 handle_USR2_signal (sig
)
302 struct input_event buf
;
304 buf
.kind
= user_signal
;
306 buf
.frame_or_window
= selected_frame
;
310 kbd_buffer_store_event (&buf
);
314 /* Handle bus errors, illegal instruction, etc. */
316 fatal_error_signal (sig
)
319 fatal_error_code
= sig
;
320 signal (sig
, SIG_DFL
);
322 TOTALLY_UNBLOCK_INPUT
;
324 /* If fatal error occurs in code below, avoid infinite recursion. */
325 if (! fatal_error_in_progress
)
327 fatal_error_in_progress
= 1;
329 shut_down_emacs (sig
, 0, Qnil
);
333 LIB$
STOP (SS$_ABORT
);
335 /* Signal the same code; this time it will really be fatal.
336 Remember that since we're in a signal handler, the signal we're
337 going to send is probably blocked, so we have to unblock it if we
338 want to really receive it. */
340 sigunblock (sigmask (fatal_error_code
));
342 kill (getpid (), fatal_error_code
);
348 /* Handler for SIGDANGER. */
350 memory_warning_signal (sig
)
353 signal (sig
, memory_warning_signal
);
355 malloc_warning ("Operating system warns that virtual memory is running low.\n");
357 /* It might be unsafe to call do_auto_save now. */
358 force_auto_save_soon ();
362 /* We define abort, rather than using it from the library,
363 so that GDB can return from a breakpoint here.
364 MSDOS has its own definition on msdos.c */
366 #if ! defined (DOS_NT) && ! defined (NO_ABORT)
368 #ifndef ABORT_RETURN_TYPE
369 #define ABORT_RETURN_TYPE void
375 kill (getpid (), SIGABRT
);
376 /* This shouldn't be executed, but it prevents a warning. */
382 /* Code for dealing with Lisp access to the Unix command line */
385 init_cmdargs (argc
, argv
, skip_args
)
391 Lisp_Object name
, dir
, tem
;
392 int count
= specpdl_ptr
- specpdl
;
393 Lisp_Object raw_name
;
398 raw_name
= build_string (argv
[0]);
400 /* Add /: to the front of the name
401 if it would otherwise be treated as magic. */
402 tem
= Ffind_file_name_handler (raw_name
, Qt
);
404 raw_name
= concat2 (build_string ("/:"), raw_name
);
406 Vinvocation_name
= Ffile_name_nondirectory (raw_name
);
407 Vinvocation_directory
= Ffile_name_directory (raw_name
);
409 /* If we got no directory in argv[0], search PATH to find where
410 Emacs actually came from. */
411 if (NILP (Vinvocation_directory
))
414 int yes
= openp (Vexec_path
, Vinvocation_name
,
415 EXEC_SUFFIXES
, &found
, 1);
418 /* Add /: to the front of the name
419 if it would otherwise be treated as magic. */
420 tem
= Ffind_file_name_handler (found
, Qt
);
422 found
= concat2 (build_string ("/:"), found
);
423 Vinvocation_directory
= Ffile_name_directory (found
);
427 if (!NILP (Vinvocation_directory
)
428 && NILP (Ffile_name_absolute_p (Vinvocation_directory
)))
429 /* Emacs was started with relative path, like ./emacs.
431 Vinvocation_directory
= Fexpand_file_name (Vinvocation_directory
, Qnil
);
433 Vinstallation_directory
= Qnil
;
435 if (!NILP (Vinvocation_directory
))
437 dir
= Vinvocation_directory
;
438 name
= Fexpand_file_name (Vinvocation_name
, dir
);
441 Lisp_Object tem
, lib_src_exists
;
442 Lisp_Object etc_exists
, info_exists
;
444 /* See if dir contains subdirs for use by Emacs.
445 Check for the ones that would exist in a build directory,
446 not including lisp and info. */
447 tem
= Fexpand_file_name (build_string ("lib-src"), dir
);
448 lib_src_exists
= Ffile_exists_p (tem
);
451 /* MSDOS installations frequently remove lib-src, but we still
452 must set installation-directory, or else info won't find
453 its files (it uses the value of installation-directory). */
454 tem
= Fexpand_file_name (build_string ("info"), dir
);
455 info_exists
= Ffile_exists_p (tem
);
460 if (!NILP (lib_src_exists
) || !NILP (info_exists
))
462 tem
= Fexpand_file_name (build_string ("etc"), dir
);
463 etc_exists
= Ffile_exists_p (tem
);
464 if (!NILP (etc_exists
))
466 Vinstallation_directory
467 = Ffile_name_as_directory (dir
);
472 /* See if dir's parent contains those subdirs. */
473 tem
= Fexpand_file_name (build_string ("../lib-src"), dir
);
474 lib_src_exists
= Ffile_exists_p (tem
);
478 /* See the MSDOS commentary above. */
479 tem
= Fexpand_file_name (build_string ("../info"), dir
);
480 info_exists
= Ffile_exists_p (tem
);
485 if (!NILP (lib_src_exists
) || !NILP (info_exists
))
487 tem
= Fexpand_file_name (build_string ("../etc"), dir
);
488 etc_exists
= Ffile_exists_p (tem
);
489 if (!NILP (etc_exists
))
491 tem
= Fexpand_file_name (build_string (".."), dir
);
492 Vinstallation_directory
493 = Ffile_name_as_directory (tem
);
498 /* If the Emacs executable is actually a link,
499 next try the dir that the link points into. */
500 tem
= Ffile_symlink_p (name
);
503 name
= Fexpand_file_name (tem
, dir
);
504 dir
= Ffile_name_directory (name
);
511 Vcommand_line_args
= Qnil
;
513 for (i
= argc
- 1; i
>= 0; i
--)
515 if (i
== 0 || i
> skip_args
)
517 = Fcons (build_string (argv
[i
]), Vcommand_line_args
);
520 unbind_to (count
, Qnil
);
523 DEFUN ("invocation-name", Finvocation_name
, Sinvocation_name
, 0, 0, 0,
524 "Return the program name that was used to run Emacs.\n\
525 Any directory names are omitted.")
528 return Fcopy_sequence (Vinvocation_name
);
531 DEFUN ("invocation-directory", Finvocation_directory
, Sinvocation_directory
,
533 "Return the directory name in which the Emacs executable was located")
536 return Fcopy_sequence (Vinvocation_directory
);
541 #ifdef LINK_CRTL_SHARE
542 #ifdef SHARABLE_LIB_BUG
543 extern noshare
char **environ
;
544 #endif /* SHARABLE_LIB_BUG */
545 #endif /* LINK_CRTL_SHARE */
549 /* A valid but unlikely value for the TZ environment value.
550 It is OK (though a bit slower) if the user actually chooses this value. */
551 static char dump_tz
[] = "UtC0";
554 #ifndef ORDINARY_LINK
555 /* We don't include crtbegin.o and crtend.o in the link,
556 so these functions and variables might be missed.
557 Provide dummy definitions to avoid error.
558 (We don't have any real constructors or destructors.) */
560 #ifndef GCC_CTORS_IN_LIBC
561 void __do_global_ctors ()
563 void __do_global_ctors_aux ()
565 void __do_global_dtors ()
567 /* Linux has a bug in its library; avoid an error. */
569 char * __CTOR_LIST__
[2] = { (char *) (-1), 0 };
571 char * __DTOR_LIST__
[2] = { (char *) (-1), 0 };
572 #endif /* GCC_CTORS_IN_LIBC */
575 #endif /* __GNUC__ */
576 #endif /* ORDINARY_LINK */
578 /* Test whether the next argument in ARGV matches SSTR or a prefix of
579 LSTR (at least MINLEN characters). If so, then if VALPTR is non-null
580 (the argument is supposed to have a value) store in *VALPTR either
581 the next argument or the portion of this one after the equal sign.
582 ARGV is read starting at position *SKIPPTR; this index is advanced
583 by the number of arguments used.
585 Too bad we can't just use getopt for all of this, but we don't have
586 enough information to do it right. */
589 argmatch (argv
, argc
, sstr
, lstr
, minlen
, valptr
, skipptr
)
602 /* Don't access argv[argc]; give up in advance. */
603 if (argc
<= *skipptr
+ 1)
606 arg
= argv
[*skipptr
+1];
609 if (strcmp (arg
, sstr
) == 0)
613 *valptr
= argv
[*skipptr
+2];
620 arglen
= (valptr
!= NULL
&& (p
= index (arg
, '=')) != NULL
621 ? p
- arg
: strlen (arg
));
622 if (lstr
== 0 || arglen
< minlen
|| strncmp (arg
, lstr
, arglen
) != 0)
624 else if (valptr
== NULL
)
635 else if (argv
[*skipptr
+2] != NULL
)
637 *valptr
= argv
[*skipptr
+2];
647 #ifdef DOUG_LEA_MALLOC
649 /* malloc can be invoked even before main (e.g. by the dynamic
650 linker), so the dumped malloc state must be restored as early as
651 possible using this special hook. */
654 malloc_initialize_hook ()
656 extern char **environ
;
660 if (!malloc_using_checking
)
661 /* Work around a bug in glibc's malloc. MALLOC_CHECK_ must be
662 ignored if the heap to be restored was constructed without
663 malloc checking. Can't use unsetenv, since that calls malloc. */
667 for (p
= environ
; *p
; p
++)
668 if (strncmp (*p
, "MALLOC_CHECK_=", 14) == 0)
677 malloc_set_state (malloc_state_ptr
);
678 free (malloc_state_ptr
);
681 malloc_using_checking
= getenv ("MALLOC_CHECK_") != NULL
;
684 void (*__malloc_initialize_hook
) () = malloc_initialize_hook
;
686 #endif /* DOUG_LEA_MALLOC */
690 main (argc
, argv
, envp
)
695 char stack_bottom_variable
;
696 int do_initial_setlocale
;
700 #ifdef HAVE_SETRLIMIT
705 #ifdef LINUX_SBRK_BUG
709 #ifdef RUN_TIME_REMAP
711 run_time_remap (argv
[0]);
714 sort_args (argc
, argv
);
716 while (argv
[argc
]) argc
++;
718 if (argmatch (argv
, argc
, "-version", "--version", 3, NULL
, &skip_args
)
719 /* We don't know the version number unless this is a dumped Emacs.
720 So ignore --version otherwise. */
724 tem
= Fsymbol_value (intern ("emacs-version"));
727 fprintf (stderr
, "Invalid value of `emacs-version'\n");
732 printf ("GNU Emacs %s\n", XSTRING (tem
)->data
);
733 printf ("Copyright (C) 1999 Free Software Foundation, Inc.\n");
734 printf ("GNU Emacs comes with ABSOLUTELY NO WARRANTY.\n");
735 printf ("You may redistribute copies of Emacs\n");
736 printf ("under the terms of the GNU General Public License.\n");
737 printf ("For more information about these matters, ");
738 printf ("see the file named COPYING.\n");
743 /* Map in shared memory, if we are using that. */
745 if (argmatch (argv
, argc
, "-nl", "--no-shared-memory", 6, NULL
, &skip_args
))
748 /* The shared memory was just restored, which clobbered this. */
754 /* The shared memory was just restored, which clobbered this. */
761 extern int malloc_cookie
;
762 /* This helps out unexnext.c. */
764 if (malloc_jumpstart (malloc_cookie
) != 0)
765 printf ("malloc jumpstart failed!\n");
770 /* If -map specified, map the data file in */
773 if (argmatch (argv
, argc
, "-map", "--map-data", 3, &mapin_file
, &skip_args
))
777 #ifdef LINK_CRTL_SHARE
778 #ifdef SHARABLE_LIB_BUG
779 /* Bletcherous shared libraries! */
781 stdin
= fdopen (0, "r");
783 stdout
= fdopen (1, "w");
785 stderr
= fdopen (2, "w");
788 #endif /* SHARABLE_LIB_BUG */
789 #endif /* LINK_CRTL_SHARE */
792 #if defined (HAVE_SETRLIMIT) && defined (RLIMIT_STACK)
793 /* Extend the stack space available.
794 Don't do that if dumping, since some systems (e.g. DJGPP)
795 might define a smaller stack limit at that time. */
798 && (!noninteractive
|| initialized
)
800 && !getrlimit (RLIMIT_STACK
, &rlim
))
803 extern int re_max_failures
;
804 /* Approximate the amount regex.c needs per unit of re_max_failures. */
805 int ratio
= 20 * sizeof (char *);
806 /* Then add 33% to cover the size of the smaller stacks that regex.c
807 successively allocates and discards, on its way to the maximum. */
809 /* Add in some extra to cover
810 what we're likely to use for other reasons. */
811 newlim
= re_max_failures
* ratio
+ 200000;
813 /* NetBSD (at least NetBSD 1.2G and former) has a bug in its
814 stack allocation routine for new process that the allocation
815 fails if stack limit is not on page boundary. So, round up the
816 new limit to page boundary. */
817 newlim
= (newlim
+ getpagesize () - 1) / getpagesize () * getpagesize();
819 if (newlim
> rlim
.rlim_max
)
821 newlim
= rlim
.rlim_max
;
822 /* Don't let regex.c overflow the stack we have. */
823 re_max_failures
= (newlim
- 200000) / ratio
;
825 if (rlim
.rlim_cur
< newlim
)
826 rlim
.rlim_cur
= newlim
;
828 setrlimit (RLIMIT_STACK
, &rlim
);
830 #endif /* HAVE_SETRLIMIT and RLIMIT_STACK */
832 /* Record (approximately) where the stack begins. */
833 stack_bottom
= &stack_bottom_variable
;
835 #ifdef USG_SHARED_LIBRARIES
837 brk ((void *)bss_end
);
842 #ifndef SYSTEM_MALLOC
843 /* Arrange to get warning messages as memory fills up. */
844 memory_warnings (0, malloc_warning
);
846 /* Call malloc at least once, to run the initial __malloc_hook.
847 Also call realloc and free for consistency. */
848 free (realloc (malloc (4), 4));
850 /* Arrange to disable interrupt input inside malloc etc. */
851 uninterrupt_malloc ();
852 #endif /* not SYSTEM_MALLOC */
855 /* We do all file input/output as binary files. When we need to translate
856 newlines, we do that manually. */
860 if (!isatty (fileno (stdin
)))
861 setmode (fileno (stdin
), O_BINARY
);
862 if (!isatty (fileno (stdout
)))
865 setmode (fileno (stdout
), O_BINARY
);
867 #else /* not __DJGPP__ >= 2 */
868 (stdin
)->_flag
&= ~_IOTEXT
;
869 (stdout
)->_flag
&= ~_IOTEXT
;
870 (stderr
)->_flag
&= ~_IOTEXT
;
871 #endif /* not __DJGPP__ >= 2 */
874 #ifdef SET_EMACS_PRIORITY
876 nice (emacs_priority
);
878 #endif /* SET_EMACS_PRIORITY */
880 /* Skip initial setlocale if LC_ALL is "C", as it's not needed in that case.
881 The build procedure uses this while dumping, to ensure that the
882 dumped Emacs does not have its system locale tables initialized,
883 as that might cause screwups when the dumped Emacs starts up. */
885 char *lc_all
= getenv ("LC_ALL");
886 do_initial_setlocale
= ! lc_all
|| strcmp (lc_all
, "C");
889 /* Set locale now, so that initial error messages are localized properly.
890 fixup_locale must wait until later, since it builds strings. */
891 if (do_initial_setlocale
)
892 setlocale (LC_ALL
, "");
894 #ifdef EXTRA_INITIALIZE
898 inhibit_window_system
= 0;
900 /* Handle the -t switch, which specifies filename to use as terminal */
904 if (argmatch (argv
, argc
, "-t", "--terminal", 4, &term
, &skip_args
))
909 result
= emacs_open (term
, O_RDWR
, 0);
912 char *errstring
= strerror (errno
);
913 fprintf (stderr
, "emacs: %s: %s\n", term
, errstring
);
919 fprintf (stderr
, "emacs: %s: not a tty\n", term
);
922 fprintf (stderr
, "Using %s\n", term
);
923 #ifdef HAVE_WINDOW_SYSTEM
924 inhibit_window_system
= 1; /* -t => -nw */
931 if (argmatch (argv
, argc
, "-nw", "--no-windows", 6, NULL
, &skip_args
))
932 inhibit_window_system
= 1;
934 /* Handle the -batch switch, which means don't do interactive display. */
936 if (argmatch (argv
, argc
, "-batch", "--batch", 5, NULL
, &skip_args
))
939 /* Handle the --help option, which gives a usage message.. */
940 if (argmatch (argv
, argc
, "-help", "--help", 3, NULL
, &skip_args
))
942 printf (USAGE
, argv
[0]);
946 if (! noninteractive
)
951 inherited_pgroup
= EMACS_GETPGRP (0);
952 setpgrp (0, getpid ());
955 #if defined (USG5) && defined (INTERRUPT_INPUT)
963 /* Don't catch SIGHUP if dumping. */
970 sigblock (sigmask (SIGHUP
));
971 /* In --batch mode, don't catch SIGHUP if already ignored.
972 That makes nohup work. */
974 || signal (SIGHUP
, SIG_IGN
) != SIG_IGN
)
975 signal (SIGHUP
, fatal_error_signal
);
976 sigunblock (sigmask (SIGHUP
));
981 ! noninteractive
|| initialized
987 /* Don't catch these signals in batch mode if dumping.
988 On some machines, this sets static data that would make
989 signal fail to work right when the dumped Emacs is run. */
990 signal (SIGQUIT
, fatal_error_signal
);
991 signal (SIGILL
, fatal_error_signal
);
992 signal (SIGTRAP
, fatal_error_signal
);
994 signal (SIGUSR1
, handle_USR1_signal
);
996 signal (SIGUSR2
, handle_USR2_signal
);
1000 signal (SIGABRT
, fatal_error_signal
);
1003 signal (SIGHWE
, fatal_error_signal
);
1006 signal (SIGPRE
, fatal_error_signal
);
1009 signal (SIGORE
, fatal_error_signal
);
1012 signal (SIGUME
, fatal_error_signal
);
1015 signal (SIGDLK
, fatal_error_signal
);
1018 signal (SIGCPULIM
, fatal_error_signal
);
1021 /* This is missing on some systems - OS/2, for example. */
1022 signal (SIGIOT
, fatal_error_signal
);
1025 signal (SIGEMT
, fatal_error_signal
);
1027 signal (SIGFPE
, fatal_error_signal
);
1029 signal (SIGBUS
, fatal_error_signal
);
1031 signal (SIGSEGV
, fatal_error_signal
);
1033 signal (SIGSYS
, fatal_error_signal
);
1035 signal (SIGTERM
, fatal_error_signal
);
1037 signal (SIGXCPU
, fatal_error_signal
);
1040 signal (SIGXFSZ
, fatal_error_signal
);
1041 #endif /* SIGXFSZ */
1044 /* This just means available memory is getting low. */
1045 signal (SIGDANGER
, memory_warning_signal
);
1049 /* 20 is SIGCHLD, 21 is SIGTTIN, 22 is SIGTTOU. */
1050 signal (SIGXCPU
, fatal_error_signal
);
1052 signal (SIGIOINT
, fatal_error_signal
);
1054 signal (SIGGRANT
, fatal_error_signal
);
1055 signal (SIGRETRACT
, fatal_error_signal
);
1056 signal (SIGSOUND
, fatal_error_signal
);
1057 signal (SIGMSG
, fatal_error_signal
);
1061 noninteractive1
= noninteractive
;
1063 /* Perform basic initializations (not merely interning symbols) */
1070 init_charset_once ();
1071 init_coding_once ();
1072 init_syntax_once (); /* Create standard syntax table. */
1073 init_category_once (); /* Create standard category table. */
1074 /* Must be done before init_buffer */
1075 init_casetab_once ();
1076 init_buffer_once (); /* Create buffer table and some buffers */
1077 init_minibuf_once (); /* Create list of minibuffers */
1078 /* Must precede init_window_once */
1080 /* Call syms_of_xfaces before init_window_once because that
1081 function creates Vterminal_frame. Termcap frames now use
1082 faces, and the face implementation uses some symbols as
1088 init_window_once (); /* Init the window system */
1089 init_fileio_once (); /* Must precede any path manipulation. */
1094 if (do_initial_setlocale
)
1097 Vsystem_messages_locale
= Vprevious_system_messages_locale
;
1098 Vsystem_time_locale
= Vprevious_system_time_locale
;
1104 #ifdef CLASH_DETECTION
1108 running_asynch_code
= 0;
1110 /* Handle --unibyte and the EMACS_UNIBYTE envvar,
1111 but not while dumping. */
1114 ! noninteractive
|| initialized
1120 int inhibit_unibyte
= 0;
1122 /* --multibyte overrides EMACS_UNIBYTE. */
1123 if (argmatch (argv
, argc
, "-no-unibyte", "--no-unibyte", 4, NULL
, &skip_args
)
1124 || argmatch (argv
, argc
, "-multibyte", "--multibyte", 4, NULL
, &skip_args
))
1125 inhibit_unibyte
= 1;
1127 /* --unibyte requests that we set up to do everything with single-byte
1128 buffers and strings. We need to handle this before calling
1129 init_lread, init_editfns and other places that generate Lisp strings
1130 from text in the environment. */
1131 /* Actually this shouldn't be needed as of 20.4 in a generally
1132 unibyte environment. As handa says, environment values
1133 aren't now decoded; also existing buffers are now made
1134 unibyte during startup if .emacs sets unibyte. Tested with
1135 8-bit data in environment variables and /etc/passwd, setting
1136 unibyte and Latin-1 in .emacs. -- Dave Love */
1137 if (argmatch (argv
, argc
, "-unibyte", "--unibyte", 4, NULL
, &skip_args
)
1138 || argmatch (argv
, argc
, "-no-multibyte", "--no-multibyte", 4, NULL
, &skip_args
)
1139 || (getenv ("EMACS_UNIBYTE") && !inhibit_unibyte
))
1141 Lisp_Object old_log_max
;
1142 Lisp_Object symbol
, tail
;
1144 symbol
= intern ("default-enable-multibyte-characters");
1145 Fset (symbol
, Qnil
);
1149 /* Erase pre-dump messages in *Messages* now so no abort. */
1150 old_log_max
= Vmessage_log_max
;
1151 XSETFASTINT (Vmessage_log_max
, 0);
1152 message_dolog ("", 0, 1, 0);
1153 Vmessage_log_max
= old_log_max
;
1156 for (tail
= Vbuffer_alist
; CONSP (tail
);
1161 buffer
= Fcdr (XCAR (tail
));
1162 /* Verify that all buffers are empty now, as they
1164 if (BUF_Z (XBUFFER (buffer
)) > BUF_BEG (XBUFFER (buffer
)))
1166 /* It is safe to do this crudely in an empty buffer. */
1167 XBUFFER (buffer
)->enable_multibyte_characters
= Qnil
;
1173 = !argmatch (argv
, argc
, "-nl", "--no-loadup", 6, NULL
, &skip_args
);
1176 #ifdef HAVE_X_WINDOWS
1177 /* Stupid kludge to catch command-line display spec. We can't
1178 handle this argument entirely in window system dependent code
1179 because we don't even know which window system dependent code
1180 to run until we've recognized this argument. */
1182 char *displayname
= 0;
1183 int count_before
= skip_args
;
1185 /* Skip any number of -d options, but only use the last one. */
1188 int count_before_this
= skip_args
;
1190 if (argmatch (argv
, argc
, "-d", "--display", 3, &displayname
, &skip_args
))
1192 else if (argmatch (argv
, argc
, "-display", 0, 3, &displayname
, &skip_args
))
1197 count_before
= count_before_this
;
1200 /* If we have the form --display=NAME,
1201 convert it into -d name.
1202 This requires inserting a new element into argv. */
1203 if (displayname
!= 0 && skip_args
- count_before
== 1)
1205 char **new = (char **) xmalloc (sizeof (char *) * (argc
+ 2));
1208 for (j
= 0; j
< count_before
+ 1; j
++)
1210 new[count_before
+ 1] = "-d";
1211 new[count_before
+ 2] = displayname
;
1212 for (j
= count_before
+ 2; j
<argc
; j
++)
1213 new[j
+ 1] = argv
[j
];
1217 /* Change --display to -d, when its arg is separate. */
1218 else if (displayname
!= 0 && skip_args
> count_before
1219 && argv
[count_before
+ 1][1] == '-')
1220 argv
[count_before
+ 1] = "-d";
1222 /* Don't actually discard this arg. */
1223 skip_args
= count_before
;
1227 /* argmatch must not be used after here,
1228 except when bulding temacs
1229 because the -d argument has not been skipped in skip_args. */
1232 /* Call early 'cause init_environment needs it. */
1234 /* Set defaults for several environment variables. */
1236 init_environment (argc
, argv
, skip_args
);
1242 /* Initialize environment from registry settings. */
1243 init_environment (argv
);
1244 init_ntproc (); /* must precede init_editfns */
1247 /* egetenv is a pretty low-level facility, which may get called in
1248 many circumstances; it seems flimsy to put off initializing it
1249 until calling init_callproc. */
1250 set_process_environment ();
1251 /* AIX crashes are reported in system versions 3.2.3 and 3.2.4
1252 if this is not done. Do it after set_process_environment so that we
1253 don't pollute Vprocess_environment. */
1254 /* Setting LANG here will defeat the startup locale processing... */
1259 init_buffer (); /* Init default directory of main buffer */
1261 init_callproc_1 (); /* Must precede init_cmdargs and init_sys_modes. */
1262 init_cmdargs (argc
, argv
, skip_args
); /* Must precede init_lread. */
1266 /* Erase any pre-dump messages in the message log, to avoid confusion */
1267 Lisp_Object old_log_max
;
1268 old_log_max
= Vmessage_log_max
;
1269 XSETFASTINT (Vmessage_log_max
, 0);
1270 message_dolog ("", 0, 1, 0);
1271 Vmessage_log_max
= old_log_max
;
1274 init_callproc (); /* Must follow init_cmdargs but not init_sys_modes. */
1277 /* Intern the names of all standard functions and variables;
1278 define standard keys. */
1282 /* The basic levels of Lisp must come first */
1283 /* And data must come first of all
1284 for the sake of symbols like error-message */
1291 syms_of_floatfns ();
1295 syms_of_bytecode ();
1297 syms_of_casefiddle ();
1299 syms_of_callproc ();
1300 syms_of_category ();
1304 #ifndef NO_DIR_LIBRARY
1306 #endif /* not NO_DIR_LIBRARY */
1312 syms_of_coding (); /* This should be after syms_of_fileio. */
1313 #ifdef CLASH_DETECTION
1314 syms_of_filelock ();
1315 #endif /* CLASH_DETECTION */
1318 syms_of_keyboard ();
1323 syms_of_mocklisp ();
1334 syms_of_textprop ();
1335 syms_of_composite ();
1341 #endif /* WINDOWSNT */
1344 #ifdef HAVE_X_WINDOWS
1351 #endif /* HAVE_X_WINDOWS */
1360 syms_of_w32faces ();
1361 syms_of_w32select ();
1364 #endif /* HAVE_NTGUI */
1374 keys_of_casefiddle ();
1377 keys_of_keyboard ();
1385 if (!noninteractive
)
1388 init_vms_input ();/* init_display calls get_frame_size, that needs this */
1390 init_display (); /* Determine terminal type. init_sys_modes uses results */
1392 init_keyboard (); /* This too must precede init_sys_modes */
1394 init_vmsproc (); /* And this too. */
1396 init_sys_modes (); /* Init system terminal modes (RAW or CBREAK, etc.) */
1397 #ifdef HAVE_X_WINDOWS
1399 #endif /* HAVE_X_WINDOWS */
1404 #ifdef LISP_FLOAT_TYPE
1418 /* Handle -l loadup, args passed by Makefile. */
1419 if (argmatch (argv
, argc
, "-l", "--load", 3, &file
, &skip_args
))
1420 Vtop_level
= Fcons (intern ("load"),
1421 Fcons (build_string (file
), Qnil
));
1423 /* Unless next switch is -nl, load "loadup.el" first thing. */
1425 Vtop_level
= Fcons (intern ("load"),
1426 Fcons (build_string ("loadup.el"), Qnil
));
1427 #endif /* CANNOT_DUMP */
1434 /* If the execution TZ happens to be the same as the dump TZ,
1435 change it to some other value and then change it back,
1436 to force the underlying implementation to reload the TZ info.
1437 This is needed on implementations that load TZ info from files,
1438 since the TZ file contents may differ between dump and execution. */
1439 char *tz
= getenv ("TZ");
1440 if (tz
&& !strcmp (tz
, dump_tz
))
1450 /* Gerd Moellmann <gerd@acm.org> says this makes profiling work on
1451 FreeBSD. It might work on some other systems too.
1452 Give it a try and tell me if it works on your system. */
1453 #if defined (__FreeBSD__) || defined (__linux)
1457 extern void _mcleanup ();
1459 extern void safe_bcopy ();
1460 extern void dump_opcode_frequencies ();
1463 // atexit (dump_opcode_frequencies);
1464 /* This uses safe_bcopy because that function comes first in the
1465 Emacs executable. It might be better to use something that
1466 gives the start of the text segment, but start_of_text is not
1467 defined on all systems now. */
1468 monstartup (safe_bcopy
, &etext
);
1477 #ifdef LOCALTIME_CACHE
1478 /* Some versions of localtime have a bug. They cache the value of the time
1479 zone rather than looking it up every time. Since localtime() is
1480 called to bolt the undumping time into the undumped emacs, this
1481 results in localtime ignoring the TZ environment variable.
1482 This flushes the new TZ value into localtime. */
1484 #endif /* defined (LOCALTIME_CACHE) */
1486 /* Enter editor command loop. This never returns. */
1491 /* Sort the args so we can find the most important ones
1492 at the beginning of argv. */
1494 /* First, here's a table of all the standard options. */
1496 struct standard_args
1504 struct standard_args standard_args
[] =
1506 { "-version", "--version", 150, 0 },
1508 { "-nl", "--no-shared-memory", 140, 0 },
1511 { "-map", "--map-data", 130, 0 },
1513 { "-t", "--terminal", 120, 1 },
1514 { "-nw", "--no-windows", 110, 0 },
1515 { "-batch", "--batch", 100, 0 },
1516 { "-help", "--help", 90, 0 },
1517 { "-no-unibyte", "--no-unibyte", 83, 0 },
1518 { "-multibyte", "--multibyte", 82, 0 },
1519 { "-unibyte", "--unibyte", 81, 0 },
1520 { "-no-multibyte", "--no-multibyte", 80, 0 },
1522 { "-nl", "--no-loadup", 70, 0 },
1524 /* -d must come last before the options handled in startup.el. */
1525 { "-d", "--display", 60, 1 },
1526 { "-display", 0, 60, 1 },
1527 /* Now for the options handled in startup.el. */
1528 { "-q", "--no-init-file", 50, 0 },
1529 { "-no-init-file", 0, 50, 0 },
1530 { "-no-site-file", "--no-site-file", 40, 0 },
1531 { "-u", "--user", 30, 1 },
1532 { "-user", 0, 30, 1 },
1533 { "-debug-init", "--debug-init", 20, 0 },
1534 { "-i", "--icon-type", 15, 0 },
1535 { "-itype", 0, 15, 0 },
1536 { "-iconic", "--iconic", 15, 0 },
1537 { "-bg", "--background-color", 10, 1 },
1538 { "-background", 0, 10, 1 },
1539 { "-fg", "--foreground-color", 10, 1 },
1540 { "-foreground", 0, 10, 1 },
1541 { "-bd", "--border-color", 10, 1 },
1542 { "-bw", "--border-width", 10, 1 },
1543 { "-ib", "--internal-border", 10, 1 },
1544 { "-ms", "--mouse-color", 10, 1 },
1545 { "-cr", "--cursor-color", 10, 1 },
1546 { "-fn", "--font", 10, 1 },
1547 { "-font", 0, 10, 1 },
1548 { "-g", "--geometry", 10, 1 },
1549 { "-geometry", 0, 10, 1 },
1550 { "-T", "--title", 10, 1 },
1551 { "-title", 0, 10, 1 },
1552 { "-name", "--name", 10, 1 },
1553 { "-xrm", "--xrm", 10, 1 },
1554 { "-r", "--reverse-video", 5, 0 },
1556 { "-reverse", 0, 5, 0 },
1557 { "-hb", "--horizontal-scroll-bars", 5, 0 },
1558 { "-vb", "--vertical-scroll-bars", 5, 0 },
1559 /* These have the same priority as ordinary file name args,
1560 so they are not reordered with respect to those. */
1561 { "-L", "--directory", 0, 1 },
1562 { "-directory", 0, 0, 1 },
1563 { "-l", "--load", 0, 1 },
1564 { "-load", 0, 0, 1 },
1565 { "-f", "--funcall", 0, 1 },
1566 { "-funcall", 0, 0, 1 },
1567 { "-eval", "--eval", 0, 1 },
1568 { "-execute", "--execute", 0, 1 },
1569 { "-find-file", "--find-file", 0, 1 },
1570 { "-visit", "--visit", 0, 1 },
1571 { "-file", "--file", 0, 1 },
1572 { "-insert", "--insert", 0, 1 },
1573 /* This should be processed after ordinary file name args and the like. */
1574 { "-kill", "--kill", -10, 0 },
1577 /* Reorder the elements of ARGV (assumed to have ARGC elements)
1578 so that the highest priority ones come first.
1579 Do not change the order of elements of equal priority.
1580 If an option takes an argument, keep it and its argument together.
1582 If an option that takes no argument appears more
1583 than once, eliminate all but one copy of it. */
1586 sort_args (argc
, argv
)
1590 char **new = (char **) xmalloc (sizeof (char *) * argc
);
1591 /* For each element of argv,
1592 the corresponding element of options is:
1593 0 for an option that takes no arguments,
1594 1 for an option that takes one argument, etc.
1595 -1 for an ordinary non-option argument. */
1596 int *options
= (int *) xmalloc (sizeof (int) * argc
);
1597 int *priority
= (int *) xmalloc (sizeof (int) * argc
);
1599 int incoming_used
= 1;
1603 /* Categorize all the options,
1604 and figure out which argv elts are option arguments. */
1605 for (from
= 1; from
< argc
; from
++)
1609 if (argv
[from
][0] == '-')
1614 /* If we have found "--", don't consider
1615 any more arguments as options. */
1616 if (argv
[from
][1] == '-' && argv
[from
][2] == 0)
1618 /* Leave the "--", and everything following it, at the end. */
1619 for (; from
< argc
; from
++)
1621 priority
[from
] = -100;
1627 /* Look for a match with a known old-fashioned option. */
1628 for (i
= 0; i
< sizeof (standard_args
) / sizeof (standard_args
[0]); i
++)
1629 if (!strcmp (argv
[from
], standard_args
[i
].name
))
1631 options
[from
] = standard_args
[i
].nargs
;
1632 priority
[from
] = standard_args
[i
].priority
;
1633 if (from
+ standard_args
[i
].nargs
>= argc
)
1634 fatal ("Option `%s' requires an argument\n", argv
[from
]);
1635 from
+= standard_args
[i
].nargs
;
1639 /* Look for a match with a known long option.
1640 MATCH is -1 if no match so far, -2 if two or more matches so far,
1641 >= 0 (the table index of the match) if just one match so far. */
1642 if (argv
[from
][1] == '-')
1645 thislen
= strlen (argv
[from
]);
1646 equals
= index (argv
[from
], '=');
1648 thislen
= equals
- argv
[from
];
1651 i
< sizeof (standard_args
) / sizeof (standard_args
[0]); i
++)
1652 if (standard_args
[i
].longname
1653 && !strncmp (argv
[from
], standard_args
[i
].longname
,
1662 /* If we found exactly one match, use that. */
1665 options
[from
] = standard_args
[match
].nargs
;
1666 priority
[from
] = standard_args
[match
].priority
;
1667 /* If --OPTION=VALUE syntax is used,
1668 this option uses just one argv element. */
1671 if (from
+ options
[from
] >= argc
)
1672 fatal ("Option `%s' requires an argument\n", argv
[from
]);
1673 from
+= options
[from
];
1680 /* Copy the arguments, in order of decreasing priority, to NEW. */
1682 while (incoming_used
< argc
)
1685 int best_priority
= -9999;
1687 /* Find the highest priority remaining option.
1688 If several have equal priority, take the first of them. */
1689 for (from
= 1; from
< argc
; from
++)
1691 if (argv
[from
] != 0 && priority
[from
] > best_priority
)
1693 best_priority
= priority
[from
];
1696 /* Skip option arguments--they are tied to the options. */
1697 if (options
[from
] > 0)
1698 from
+= options
[from
];
1704 /* Copy the highest priority remaining option, with its args, to NEW.
1705 Unless it is a duplicate of the previous one. */
1706 if (! (options
[best
] == 0
1707 && ! strcmp (new[to
- 1], argv
[best
])))
1709 new[to
++] = argv
[best
];
1710 for (i
= 0; i
< options
[best
]; i
++)
1711 new[to
++] = argv
[best
+ i
+ 1];
1714 incoming_used
+= 1 + (options
[best
] > 0 ? options
[best
] : 0);
1716 /* Clear out this option in ARGV. */
1718 for (i
= 0; i
< options
[best
]; i
++)
1719 argv
[best
+ i
+ 1] = 0;
1722 /* If duplicate options were deleted, fill up extra space with null ptrs. */
1726 bcopy (new, argv
, sizeof (char *) * argc
);
1733 DEFUN ("kill-emacs", Fkill_emacs
, Skill_emacs
, 0, 1, "P",
1734 "Exit the Emacs job and kill it.\n\
1735 If ARG is an integer, return ARG as the exit program code.\n\
1736 If ARG is a string, stuff it as keyboard input.\n\n\
1737 The value of `kill-emacs-hook', if not void,\n\
1738 is a list of functions (of no args),\n\
1739 all of which are called before Emacs is actually killed.")
1743 struct gcpro gcpro1
;
1750 if (!NILP (Vrun_hooks
) && !noninteractive
)
1751 call1 (Vrun_hooks
, intern ("kill-emacs-hook"));
1755 /* Is it really necessary to do this deassign
1756 when we are going to exit anyway? */
1761 shut_down_emacs (0, 0, STRINGP (arg
) ? arg
: Qnil
);
1763 /* If we have an auto-save list file,
1764 kill it because we are exiting Emacs deliberately (not crashing).
1765 Do it after shut_down_emacs, which does an auto-save. */
1766 if (STRINGP (Vauto_save_list_file_name
))
1767 unlink (XSTRING (Vauto_save_list_file_name
)->data
);
1769 exit (INTEGERP (arg
) ? XINT (arg
)
1780 /* Perform an orderly shutdown of Emacs. Autosave any modified
1781 buffers, kill any child processes, clean up the terminal modes (if
1782 we're in the foreground), and other stuff like that. Don't perform
1783 any redisplay; this may be called when Emacs is shutting down in
1784 the background, or after its X connection has died.
1786 If SIG is a signal number, print a message for it.
1788 This is called by fatal signal handlers, X protocol error handlers,
1792 shut_down_emacs (sig
, no_x
, stuff
)
1796 /* Prevent running of hooks from now on. */
1799 /* If we are controlling the terminal, reset terminal modes */
1800 #ifdef EMACS_HAVE_TTY_PGRP
1802 int pgrp
= EMACS_GETPGRP (0);
1805 if (EMACS_GET_TTY_PGRP (0, &tpgrp
) != -1
1810 if (sig
&& sig
!= SIGTERM
)
1811 fprintf (stderr
, "Fatal error (%d).", sig
);
1819 stuff_buffered_input (stuff
);
1821 kill_buffer_processes (Qnil
);
1822 Fdo_auto_save (Qt
, Qnil
);
1824 #ifdef CLASH_DETECTION
1825 unlock_all_files ();
1829 kill_vms_processes ();
1832 #if 0 /* This triggers a bug in XCloseDisplay and is not needed. */
1833 #ifdef HAVE_X_WINDOWS
1834 /* It's not safe to call intern here. Maybe we are crashing. */
1835 if (!noninteractive
&& SYMBOLP (Vwindow_system
)
1836 && XSYMBOL (Vwindow_system
)->name
->size
== 1
1837 && XSYMBOL (Vwindow_system
)->name
->data
[0] == 'x'
1839 Fx_close_current_connection ();
1840 #endif /* HAVE_X_WINDOWS */
1844 /* There is a tendency for a SIGIO signal to arrive within exit,
1845 and cause a SIGHUP because the input descriptor is already closed. */
1847 signal (SIGIO
, SIG_IGN
);
1854 check_glyph_memory ();
1855 check_message_stack ();
1868 DEFUN ("dump-emacs-data", Fdump_emacs_data
, Sdump_emacs_data
, 1, 1, 0,
1869 "Dump current state of Emacs into data file FILENAME.\n\
1870 This function exists on systems that use HAVE_SHM.")
1872 Lisp_Object filename
;
1874 extern char my_edata
[];
1877 CHECK_STRING (filename
, 0);
1878 filename
= Fexpand_file_name (filename
, Qnil
);
1881 Vpurify_flag
= Qnil
;
1884 /* Tell malloc where start of impure now is */
1885 /* Also arrange for warnings when nearly out of space. */
1886 #ifndef SYSTEM_MALLOC
1887 memory_warnings (my_edata
, malloc_warning
);
1889 map_out_data (XSTRING (filename
)->data
);
1896 #else /* not HAVE_SHM */
1898 DEFUN ("dump-emacs", Fdump_emacs
, Sdump_emacs
, 2, 2, 0,
1899 "Dump current state of Emacs into executable file FILENAME.\n\
1900 Take symbols from SYMFILE (presumably the file you executed to run Emacs).\n\
1901 This is used in the file `loadup.el' when building Emacs.\n\
1903 You must run Emacs in batch mode in order to dump it.")
1905 Lisp_Object filename
, symfile
;
1907 extern char my_edata
[];
1910 int count
= specpdl_ptr
- specpdl
;
1912 if (! noninteractive
)
1913 error ("Dumping Emacs works only in batch mode");
1915 /* Bind `command-line-processed' to nil before dumping,
1916 so that the dumped Emacs will process its command line
1917 and set up to work with X windows if appropriate. */
1918 symbol
= intern ("command-line-process");
1919 specbind (symbol
, Qnil
);
1921 CHECK_STRING (filename
, 0);
1922 filename
= Fexpand_file_name (filename
, Qnil
);
1923 if (!NILP (symfile
))
1925 CHECK_STRING (symfile
, 0);
1926 if (XSTRING (symfile
)->size
)
1927 symfile
= Fexpand_file_name (symfile
, Qnil
);
1931 Vpurify_flag
= Qnil
;
1934 set_time_zone_rule (dump_tz
);
1935 #ifndef LOCALTIME_CACHE
1936 /* Force a tz reload, since set_time_zone_rule doesn't. */
1943 mapout_data (XSTRING (filename
)->data
);
1945 /* Tell malloc where start of impure now is */
1946 /* Also arrange for warnings when nearly out of space. */
1947 #ifndef SYSTEM_MALLOC
1949 /* On Windows, this was done before dumping, and that once suffices.
1950 Meanwhile, my_edata is not valid on Windows. */
1951 memory_warnings (my_edata
, malloc_warning
);
1952 #endif /* not WINDOWSNT */
1954 #ifdef DOUG_LEA_MALLOC
1955 malloc_state_ptr
= malloc_get_state ();
1957 unexec (XSTRING (filename
)->data
,
1958 !NILP (symfile
) ? XSTRING (symfile
)->data
: 0, my_edata
, 0, 0);
1959 #ifdef DOUG_LEA_MALLOC
1960 free (malloc_state_ptr
);
1962 #endif /* not VMS */
1966 return unbind_to (count
, Qnil
);
1969 #endif /* not HAVE_SHM */
1971 #endif /* not CANNOT_DUMP */
1974 /* Recover from setlocale (LC_ALL, ""). */
1978 /* The Emacs Lisp reader needs LC_NUMERIC to be "C",
1979 so that numbers are read and printed properly for Emacs Lisp. */
1980 setlocale (LC_NUMERIC
, "C");
1983 /* Set system locale CATEGORY, with previous locale *PLOCALE, to
1986 synchronize_locale (category
, plocale
, desired_locale
)
1988 Lisp_Object
*plocale
;
1989 Lisp_Object desired_locale
;
1991 if (! EQ (*plocale
, desired_locale
))
1993 *plocale
= desired_locale
;
1994 setlocale (category
, (STRINGP (desired_locale
)
1995 ? (char *)(XSTRING (desired_locale
)->data
)
2000 /* Set system time locale to match Vsystem_time_locale, if possible. */
2002 synchronize_system_time_locale ()
2004 synchronize_locale (LC_TIME
, &Vprevious_system_time_locale
,
2005 Vsystem_time_locale
);
2008 /* Set system messages locale to match Vsystem_messages_locale, if
2011 synchronize_system_messages_locale ()
2014 synchronize_locale (LC_MESSAGES
, &Vprevious_system_messages_locale
,
2015 Vsystem_messages_locale
);
2018 #endif /* HAVE_SETLOCALE */
2025 decode_env_path (evarname
, defalt
)
2026 char *evarname
, *defalt
;
2028 register char *path
, *p
;
2029 Lisp_Object lpath
, element
, tem
;
2031 /* It's okay to use getenv here, because this function is only used
2032 to initialize variables when Emacs starts up, and isn't called
2035 path
= (char *) getenv (evarname
);
2041 /* Ensure values from the environment use the proper directory separator. */
2044 p
= alloca (strlen (path
) + 1);
2048 if ('/' == DIRECTORY_SEP
)
2049 dostounix_filename (path
);
2051 unixtodos_filename (path
);
2057 p
= index (path
, SEPCHAR
);
2058 if (!p
) p
= path
+ strlen (path
);
2059 element
= (p
- path
? make_string (path
, p
- path
)
2060 : build_string ("."));
2062 /* Add /: to the front of the name
2063 if it would otherwise be treated as magic. */
2064 tem
= Ffind_file_name_handler (element
, Qt
);
2066 element
= concat2 (build_string ("/:"), element
);
2068 lpath
= Fcons (element
, lpath
);
2074 return Fnreverse (lpath
);
2080 Qfile_name_handler_alist
= intern ("file-name-handler-alist");
2081 staticpro (&Qfile_name_handler_alist
);
2085 defsubr (&Sdump_emacs_data
);
2087 defsubr (&Sdump_emacs
);
2091 defsubr (&Skill_emacs
);
2093 defsubr (&Sinvocation_name
);
2094 defsubr (&Sinvocation_directory
);
2096 DEFVAR_LISP ("command-line-args", &Vcommand_line_args
,
2097 "Args passed by shell to Emacs, as a list of strings.");
2099 DEFVAR_LISP ("system-type", &Vsystem_type
,
2100 "Value is symbol indicating type of operating system you are using.");
2101 Vsystem_type
= intern (SYSTEM_TYPE
);
2103 DEFVAR_LISP ("system-configuration", &Vsystem_configuration
,
2104 "Value is string indicating configuration Emacs was built for.");
2105 Vsystem_configuration
= build_string (EMACS_CONFIGURATION
);
2107 DEFVAR_LISP ("system-configuration-options", &Vsystem_configuration_options
,
2108 "String containing the configuration options Emacs was built with.");
2109 Vsystem_configuration_options
= build_string (EMACS_CONFIG_OPTIONS
);
2111 DEFVAR_BOOL ("noninteractive", &noninteractive1
,
2112 "Non-nil means Emacs is running without interactive terminal.");
2114 DEFVAR_LISP ("kill-emacs-hook", &Vkill_emacs_hook
,
2115 "Hook to be run whenever kill-emacs is called.\n\
2116 Since kill-emacs may be invoked when the terminal is disconnected (or\n\
2117 in other similar situations), functions placed on this hook should not\n\
2118 expect to be able to interact with the user. To ask for confirmation,\n\
2119 see `kill-emacs-query-functions' instead.");
2120 Vkill_emacs_hook
= Qnil
;
2123 DEFVAR_LISP ("signal-USR1-hook", &Vsignal_USR1_hook
,
2124 "Hook to be run whenever emacs receives a USR1 signal");
2125 Vsignal_USR1_hook
= Qnil
;
2127 DEFVAR_LISP ("signal-USR2-hook", &Vsignal_USR2_hook
,
2128 "Hook to be run whenever emacs receives a USR2 signal");
2129 Vsignal_USR2_hook
= Qnil
;
2134 DEFVAR_INT ("emacs-priority", &emacs_priority
,
2135 "Priority for Emacs to run at.\n\
2136 This value is effective only if set before Emacs is dumped,\n\
2137 and only if the Emacs executable is installed with setuid to permit\n\
2138 it to change priority. (Emacs sets its uid back to the real uid.)\n\
2139 Currently, you need to define SET_EMACS_PRIORITY in `config.h'\n\
2140 before you compile Emacs, to enable the code for this feature.");
2143 DEFVAR_LISP ("path-separator", &Vpath_separator
,
2144 "The directory separator in search paths, as a string.");
2147 Vpath_separator
= make_string (&c
, 1);
2150 DEFVAR_LISP ("invocation-name", &Vinvocation_name
,
2151 "The program name that was used to run Emacs.\n\
2152 Any directory names are omitted.");
2154 DEFVAR_LISP ("invocation-directory", &Vinvocation_directory
,
2155 "The directory in which the Emacs executable was found, to run it.\n\
2156 The value is nil if that directory's name is not known.");
2158 DEFVAR_LISP ("installation-directory", &Vinstallation_directory
,
2159 "A directory within which to look for the `lib-src' and `etc' directories.\n\
2160 This is non-nil when we can't find those directories in their standard\n\
2161 installed locations, but we can find them\n\
2162 near where the Emacs executable was found.");
2163 Vinstallation_directory
= Qnil
;
2165 DEFVAR_LISP ("system-messages-locale", &Vsystem_messages_locale
,
2166 "System locale for messages.");
2167 Vsystem_messages_locale
= Qnil
;
2169 DEFVAR_LISP ("previous-system-messages-locale",
2170 &Vprevious_system_messages_locale
,
2171 "Most recently used system locale for messages.");
2172 Vprevious_system_messages_locale
= Qnil
;
2174 DEFVAR_LISP ("system-time-locale", &Vsystem_time_locale
,
2175 "System locale for time.");
2176 Vsystem_time_locale
= Qnil
;
2178 DEFVAR_LISP ("previous-system-time-locale", &Vprevious_system_time_locale
,
2179 "Most recently used system locale for time.");
2180 Vprevious_system_time_locale
= Qnil
;