1 /* Fully extensible Emacs, running on Unix, intended for GNU.
2 Copyright (C) 1985,86,87,93,94,95,97,98,1999,2001
3 Free Software Foundation, Inc.
5 This file is part of GNU Emacs.
7 GNU Emacs is free software; you can redistribute it and/or modify
8 it under the terms of the GNU General Public License as published by
9 the Free Software Foundation; either version 2, or (at your option)
12 GNU Emacs is distributed in the hope that it will be useful,
13 but WITHOUT ANY WARRANTY; without even the implied warranty of
14 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
15 GNU General Public License for more details.
17 You should have received a copy of the GNU General Public License
18 along with GNU Emacs; see the file COPYING. If not, write to
19 the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
20 Boston, MA 02111-1307, USA. */
28 #include <sys/types.h>
40 #include <sys/ioctl.h>
45 #include "intervals.h"
49 #include "blockinput.h"
50 #include "syssignal.h"
52 #include "termhooks.h"
62 #include <sys/resource.h>
70 #if !defined (USG) || defined (BSD_PGRPS)
72 #define setpgrp setpgid
76 extern void malloc_warning
P_ ((char *));
77 extern void set_time_zone_rule
P_ ((char *));
79 extern char *index
P_ ((const char *, int));
82 /* Make these values available in GDB, which doesn't see macros. */
84 EMACS_INT gdb_valbits
= VALBITS
;
85 EMACS_INT gdb_gctypebits
= GCTYPEBITS
;
86 EMACS_INT gdb_emacs_intbits
= sizeof (EMACS_INT
) * BITS_PER_CHAR
;
88 EMACS_INT gdb_data_seg_bits
= DATA_SEG_BITS
;
90 EMACS_INT gdb_data_seg_bits
= 0;
92 EMACS_INT PVEC_FLAG
= PSEUDOVECTOR_FLAG
;
94 /* Command line args from shell, as list of strings. */
95 Lisp_Object Vcommand_line_args
;
97 /* The name under which Emacs was invoked, with any leading directory
99 Lisp_Object Vinvocation_name
;
101 /* The directory name from which Emacs was invoked. */
102 Lisp_Object Vinvocation_directory
;
104 /* The directory name in which to find subdirs such as lisp and etc.
105 nil means get them only from PATH_LOADSEARCH. */
106 Lisp_Object Vinstallation_directory
;
108 /* Hook run by `kill-emacs' before it does really anything. */
109 Lisp_Object Vkill_emacs_hook
;
111 /* An empty lisp string. To avoid having to build any other. */
112 Lisp_Object empty_string
;
115 /* Hooks for signal USR1 and USR2 handling. */
116 Lisp_Object Vsignal_USR1_hook
;
118 Lisp_Object Vsignal_USR2_hook
;
122 /* Search path separator. */
123 Lisp_Object Vpath_separator
;
125 /* Set nonzero after Emacs has started up the first time.
126 Prevents reinitialization of the Lisp world and keymaps
127 on subsequent starts. */
130 #ifdef DOUG_LEA_MALLOC
131 /* Preserves a pointer to the memory allocated that copies that
132 static data inside glibc's malloc. */
133 void *malloc_state_ptr
;
134 /* From glibc, a routine that returns a copy of the malloc internal state. */
135 extern void *malloc_get_state ();
136 /* From glibc, a routine that overwrites the malloc internal state. */
137 extern void malloc_set_state ();
138 /* Non-zero if the MALLOC_CHECK_ enviroment variable was set while
139 dumping. Used to work around a bug in glibc's malloc. */
140 int malloc_using_checking
;
143 /* Variable whose value is symbol giving operating system type. */
144 Lisp_Object Vsystem_type
;
146 /* Variable whose value is string giving configuration built for. */
147 Lisp_Object Vsystem_configuration
;
149 /* Variable whose value is string giving configuration options,
150 for use when reporting bugs. */
151 Lisp_Object Vsystem_configuration_options
;
153 Lisp_Object Qfile_name_handler_alist
;
155 /* Current and previous system locales for messages and time. */
156 Lisp_Object Vsystem_messages_locale
;
157 Lisp_Object Vprevious_system_messages_locale
;
158 Lisp_Object Vsystem_time_locale
;
159 Lisp_Object Vprevious_system_time_locale
;
161 /* If non-zero, emacs should not attempt to use an window-specific code,
162 but instead should use the virtual terminal under which it was started. */
163 int inhibit_window_system
;
165 /* If nonzero, set Emacs to run at this priority. This is also used
166 in child_setup and sys_suspend to make sure subshells run at normal
167 priority; those functions have their own extern declaration. */
170 /* If non-zero, a filter or a sentinel is running. Tested to save the match
171 data on the first attempt to change it inside asynchronous code. */
172 int running_asynch_code
;
176 extern int inherited_pgroup
;
179 #ifdef HAVE_X_WINDOWS
180 /* If non-zero, -d was specified, meaning we're using some window system. */
184 /* An address near the bottom of the stack.
185 Tells GC how to save a copy of the stack. */
188 #ifdef HAVE_WINDOW_SYSTEM
189 extern Lisp_Object Vwindow_system
;
190 #endif /* HAVE_WINDOW_SYSTEM */
192 extern Lisp_Object Vauto_save_list_file_name
;
194 #ifdef USG_SHARED_LIBRARIES
195 /* If nonzero, this is the place to put the end of the writable segment
198 unsigned int bss_end
= 0;
201 /* Nonzero means running Emacs without interactive terminal. */
205 /* Value of Lisp variable `noninteractive'.
206 Normally same as C variable `noninteractive'
207 but nothing terrible happens if user sets this one. */
211 /* Save argv and argc. */
215 static void sort_args ();
216 void syms_of_emacs ();
219 Usage: %s [OPTION-OR-FILENAME]...\n\
221 Run Emacs, the extensible, customizable, self-documenting real-time\n\
222 display editor. The recommended way to start Emacs for normal editing\n\
223 is with no options at all.\n\
225 Run M-x info RET m emacs RET m command arguments RET inside Emacs to\n\
226 read the main documentation for these command-line arguments.\n\
228 Initialization options:\n\
230 --batch do not do interactive display; implies -q\n\
231 --debug-init enable Emacs Lisp debugger during init file\n\
232 --help display this help message and exit\n\
233 --multibyte, --no-unibyte run Emacs in multibyte mode\n\
234 --no-init-file, -q load neither ~/.emacs nor default.el\n\
235 --no-shared-memory, -nl do not use shared memory\n\
236 --no-site-file do not load site-start.el\n\
237 --no-windows, -nw don't communicate with X, ignoring $DISPLAY\n\
238 --terminal, -t DEVICE use DEVICE for terminal I/O\n\
239 --unibyte, --no-multibyte run Emacs in unibyte mode\n\
240 --user, -u USER load ~USER/.emacs instead of your own\n\
241 --version display version information and exit\n\
245 FILE visit FILE using find-file\n\
246 +LINE FILE visit FILE using find-file, then go to line LINE\n\
247 +LINE:COLUMN FILE visit FILE using find-file, then go to line LINE,\n\
249 --directory, -L DIR add DIR to variable load-path\n\
250 --eval EXPR evaluate Emacs Lisp expression EXPR\n\
251 --execute EXPR evaluate Emacs Lisp expression EXPR\n\
252 --find-file FILE visit FILE\n\
253 --funcall, -f FUNC call Emacs function FUNC with no arguments\n\
254 --insert FILE insert contents of FILE into current buffer\n\
255 --kill exit without asking for confirmation\n\
256 --load, -l FILE load FILE of Emacs Lisp code using the load function\n\
257 --visit FILE visit FILE\n\
263 --background-color, -bg COLOR window background color\n\
264 --border-color, -bd COLOR main border color\n\
265 --border-width, -bw WIDTH width of main border\n\
266 --cursor-color, -cr COLOR color of the Emacs cursor indicating point\n\
267 --display, -d DISPLAY use X server DISPLAY\n\
268 --font, -fn FONT default font; must be fixed-width\n\
269 --foreground-color, -fg COLOR window foreground color\n\
270 --geometry, -g GEOMETRY window geometry\n\
271 --iconic start Emacs in iconified state\n\
272 --icon-type, -i use picture of gnu for Emacs icon\n\
273 --internal-border, -ib WIDTH width between text and main border\n\
274 --line-spacing, -lsp PIXELS additional space to put between lines\n\
275 --mouse-color, -ms COLOR mouse cursor color in Emacs window\n\
276 --name NAME title of main Emacs window\n\
277 --reverse-video, -r, -rv switch foreground and background\n\
278 --title, -T, -wn TITLE title for Emacs windows\n\
279 --vertical-scroll-bars, -vb enable vertical scroll bars\n\
280 --xrm XRESOURCES set additional X resources\n\
282 You can generally also specify long option names with a single -; for\n\
283 example, -batch as well as --batch. You can use any unambiguous\n\
284 abbreviation for a --option.\n\
286 Various environment variables and window system resources also affect\n\
287 Emacs' operation. See the main documentation.\n\
291 Report bugs to %s. First, please see the Bugs\n\
292 section of the Emacs manual or the file BUGS.\n"
295 /* Signal code for the fatal signal that was received. */
296 int fatal_error_code
;
298 /* Nonzero if handling a fatal error already. */
299 int fatal_error_in_progress
;
301 /* If non-null, call this function from fatal_error_signal before
302 committing suicide. */
304 void (*fatal_error_signal_hook
) P_ ((void));
309 handle_USR1_signal (sig
)
312 struct input_event buf
;
314 bzero (&buf
, sizeof buf
);
315 buf
.kind
= USER_SIGNAL_EVENT
;
316 buf
.frame_or_window
= selected_frame
;
318 kbd_buffer_store_event (&buf
);
324 handle_USR2_signal (sig
)
327 struct input_event buf
;
329 bzero (&buf
, sizeof buf
);
330 buf
.kind
= USER_SIGNAL_EVENT
;
332 buf
.frame_or_window
= selected_frame
;
334 kbd_buffer_store_event (&buf
);
338 /* Handle bus errors, invalid instruction, etc. */
340 fatal_error_signal (sig
)
343 fatal_error_code
= sig
;
344 signal (sig
, SIG_DFL
);
346 TOTALLY_UNBLOCK_INPUT
;
348 /* If fatal error occurs in code below, avoid infinite recursion. */
349 if (! fatal_error_in_progress
)
351 fatal_error_in_progress
= 1;
353 shut_down_emacs (sig
, 0, Qnil
);
357 LIB$
STOP (SS$_ABORT
);
359 /* Signal the same code; this time it will really be fatal.
360 Remember that since we're in a signal handler, the signal we're
361 going to send is probably blocked, so we have to unblock it if we
362 want to really receive it. */
364 sigunblock (sigmask (fatal_error_code
));
367 if (fatal_error_signal_hook
)
368 fatal_error_signal_hook ();
370 kill (getpid (), fatal_error_code
);
376 /* Handler for SIGDANGER. */
378 memory_warning_signal (sig
)
381 signal (sig
, memory_warning_signal
);
383 malloc_warning ("Operating system warns that virtual memory is running low.\n");
385 /* It might be unsafe to call do_auto_save now. */
386 force_auto_save_soon ();
390 /* We define abort, rather than using it from the library,
391 so that GDB can return from a breakpoint here.
392 MSDOS has its own definition in msdos.c. */
394 #if ! defined (DOS_NT) && ! defined (NO_ABORT)
396 #ifndef ABORT_RETURN_TYPE
397 #define ABORT_RETURN_TYPE void
403 kill (getpid (), SIGABRT
);
404 /* This shouldn't be executed, but it prevents a warning. */
410 /* Code for dealing with Lisp access to the Unix command line. */
413 init_cmdargs (argc
, argv
, skip_args
)
419 Lisp_Object name
, dir
, tem
;
420 int count
= specpdl_ptr
- specpdl
;
421 Lisp_Object raw_name
;
426 raw_name
= build_string (argv
[0]);
428 /* Add /: to the front of the name
429 if it would otherwise be treated as magic. */
430 tem
= Ffind_file_name_handler (raw_name
, Qt
);
432 raw_name
= concat2 (build_string ("/:"), raw_name
);
434 Vinvocation_name
= Ffile_name_nondirectory (raw_name
);
435 Vinvocation_directory
= Ffile_name_directory (raw_name
);
437 /* If we got no directory in argv[0], search PATH to find where
438 Emacs actually came from. */
439 if (NILP (Vinvocation_directory
))
442 int yes
= openp (Vexec_path
, Vinvocation_name
,
443 Vexec_suffixes
, &found
, 1);
446 /* Add /: to the front of the name
447 if it would otherwise be treated as magic. */
448 tem
= Ffind_file_name_handler (found
, Qt
);
450 found
= concat2 (build_string ("/:"), found
);
451 Vinvocation_directory
= Ffile_name_directory (found
);
455 if (!NILP (Vinvocation_directory
)
456 && NILP (Ffile_name_absolute_p (Vinvocation_directory
)))
457 /* Emacs was started with relative path, like ./emacs.
459 Vinvocation_directory
= Fexpand_file_name (Vinvocation_directory
, Qnil
);
461 Vinstallation_directory
= Qnil
;
463 if (!NILP (Vinvocation_directory
))
465 dir
= Vinvocation_directory
;
466 name
= Fexpand_file_name (Vinvocation_name
, dir
);
469 Lisp_Object tem
, lib_src_exists
;
470 Lisp_Object etc_exists
, info_exists
;
472 /* See if dir contains subdirs for use by Emacs.
473 Check for the ones that would exist in a build directory,
474 not including lisp and info. */
475 tem
= Fexpand_file_name (build_string ("lib-src"), dir
);
476 lib_src_exists
= Ffile_exists_p (tem
);
479 /* MSDOS installations frequently remove lib-src, but we still
480 must set installation-directory, or else info won't find
481 its files (it uses the value of installation-directory). */
482 tem
= Fexpand_file_name (build_string ("info"), dir
);
483 info_exists
= Ffile_exists_p (tem
);
488 if (!NILP (lib_src_exists
) || !NILP (info_exists
))
490 tem
= Fexpand_file_name (build_string ("etc"), dir
);
491 etc_exists
= Ffile_exists_p (tem
);
492 if (!NILP (etc_exists
))
494 Vinstallation_directory
495 = Ffile_name_as_directory (dir
);
500 /* See if dir's parent contains those subdirs. */
501 tem
= Fexpand_file_name (build_string ("../lib-src"), dir
);
502 lib_src_exists
= Ffile_exists_p (tem
);
506 /* See the MSDOS commentary above. */
507 tem
= Fexpand_file_name (build_string ("../info"), dir
);
508 info_exists
= Ffile_exists_p (tem
);
513 if (!NILP (lib_src_exists
) || !NILP (info_exists
))
515 tem
= Fexpand_file_name (build_string ("../etc"), dir
);
516 etc_exists
= Ffile_exists_p (tem
);
517 if (!NILP (etc_exists
))
519 tem
= Fexpand_file_name (build_string (".."), dir
);
520 Vinstallation_directory
521 = Ffile_name_as_directory (tem
);
526 /* If the Emacs executable is actually a link,
527 next try the dir that the link points into. */
528 tem
= Ffile_symlink_p (name
);
531 name
= Fexpand_file_name (tem
, dir
);
532 dir
= Ffile_name_directory (name
);
539 Vcommand_line_args
= Qnil
;
541 for (i
= argc
- 1; i
>= 0; i
--)
543 if (i
== 0 || i
> skip_args
)
545 = Fcons (build_string (argv
[i
]), Vcommand_line_args
);
548 unbind_to (count
, Qnil
);
551 DEFUN ("invocation-name", Finvocation_name
, Sinvocation_name
, 0, 0, 0,
552 doc
: /* Return the program name that was used to run Emacs.
553 Any directory names are omitted. */)
556 return Fcopy_sequence (Vinvocation_name
);
559 DEFUN ("invocation-directory", Finvocation_directory
, Sinvocation_directory
,
561 doc
: /* Return the directory name in which the Emacs executable was located. */)
564 return Fcopy_sequence (Vinvocation_directory
);
569 #ifdef LINK_CRTL_SHARE
570 #ifdef SHARABLE_LIB_BUG
571 extern noshare
char **environ
;
572 #endif /* SHARABLE_LIB_BUG */
573 #endif /* LINK_CRTL_SHARE */
577 /* A valid but unlikely value for the TZ environment value.
578 It is OK (though a bit slower) if the user actually chooses this value. */
579 static char dump_tz
[] = "UtC0";
582 #ifndef ORDINARY_LINK
583 /* We don't include crtbegin.o and crtend.o in the link,
584 so these functions and variables might be missed.
585 Provide dummy definitions to avoid error.
586 (We don't have any real constructors or destructors.) */
588 #ifndef GCC_CTORS_IN_LIBC
589 void __do_global_ctors ()
591 void __do_global_ctors_aux ()
593 void __do_global_dtors ()
595 /* Linux has a bug in its library; avoid an error. */
597 char * __CTOR_LIST__
[2] = { (char *) (-1), 0 };
599 char * __DTOR_LIST__
[2] = { (char *) (-1), 0 };
600 #endif /* GCC_CTORS_IN_LIBC */
603 #endif /* __GNUC__ */
604 #endif /* ORDINARY_LINK */
606 /* Test whether the next argument in ARGV matches SSTR or a prefix of
607 LSTR (at least MINLEN characters). If so, then if VALPTR is non-null
608 (the argument is supposed to have a value) store in *VALPTR either
609 the next argument or the portion of this one after the equal sign.
610 ARGV is read starting at position *SKIPPTR; this index is advanced
611 by the number of arguments used.
613 Too bad we can't just use getopt for all of this, but we don't have
614 enough information to do it right. */
617 argmatch (argv
, argc
, sstr
, lstr
, minlen
, valptr
, skipptr
)
630 /* Don't access argv[argc]; give up in advance. */
631 if (argc
<= *skipptr
+ 1)
634 arg
= argv
[*skipptr
+1];
637 if (strcmp (arg
, sstr
) == 0)
641 *valptr
= argv
[*skipptr
+2];
648 arglen
= (valptr
!= NULL
&& (p
= index (arg
, '=')) != NULL
649 ? p
- arg
: strlen (arg
));
650 if (lstr
== 0 || arglen
< minlen
|| strncmp (arg
, lstr
, arglen
) != 0)
652 else if (valptr
== NULL
)
663 else if (argv
[*skipptr
+2] != NULL
)
665 *valptr
= argv
[*skipptr
+2];
675 #ifdef DOUG_LEA_MALLOC
677 /* malloc can be invoked even before main (e.g. by the dynamic
678 linker), so the dumped malloc state must be restored as early as
679 possible using this special hook. */
682 malloc_initialize_hook ()
685 extern char **environ
;
690 if (!malloc_using_checking
)
691 /* Work around a bug in glibc's malloc. MALLOC_CHECK_ must be
692 ignored if the heap to be restored was constructed without
693 malloc checking. Can't use unsetenv, since that calls malloc. */
697 for (p
= environ
; p
&& *p
; p
++)
698 if (strncmp (*p
, "MALLOC_CHECK_=", 14) == 0)
707 malloc_set_state (malloc_state_ptr
);
708 free (malloc_state_ptr
);
711 malloc_using_checking
= getenv ("MALLOC_CHECK_") != NULL
;
714 void (*__malloc_initialize_hook
) () = malloc_initialize_hook
;
716 #endif /* DOUG_LEA_MALLOC */
719 #define REPORT_EMACS_BUG_ADDRESS "bug-gnu-emacs@gnu.org"
720 #define REPORT_EMACS_BUG_PRETEST_ADDRESS "emacs-pretest-bug@gnu.org"
722 /* This function is used to determine an address to which bug report should
725 char *bug_reporting_address ()
731 temp
= Fsymbol_value (intern ("emacs-version"));
733 /* When `emacs-version' is invalid, use normal address. */
735 return REPORT_EMACS_BUG_ADDRESS
;
737 string
= XSTRING (temp
)->data
;
742 } while (string
++,*string
);
744 /* When `emacs-version' has at least three dots, it is development or
745 pretest version of Emacs. */
746 return (count
>=3) ? REPORT_EMACS_BUG_PRETEST_ADDRESS
: REPORT_EMACS_BUG_ADDRESS
;
752 main (argc
, argv
, envp
)
760 char stack_bottom_variable
;
761 int do_initial_setlocale
;
766 #ifdef HAVE_SETRLIMIT
772 extern Lisp_Object
*stack_base
;
776 #ifdef LINUX_SBRK_BUG
780 #ifdef RUN_TIME_REMAP
782 run_time_remap (argv
[0]);
785 sort_args (argc
, argv
);
787 while (argv
[argc
]) argc
++;
789 if (argmatch (argv
, argc
, "-version", "--version", 3, NULL
, &skip_args
)
790 /* We don't know the version number unless this is a dumped Emacs.
791 So ignore --version otherwise. */
795 tem
= Fsymbol_value (intern ("emacs-version"));
798 fprintf (stderr
, "Invalid value of `emacs-version'\n");
803 printf ("GNU Emacs %s\n", XSTRING (tem
)->data
);
804 printf ("Copyright (C) 2001 Free Software Foundation, Inc.\n");
805 printf ("GNU Emacs comes with ABSOLUTELY NO WARRANTY.\n");
806 printf ("You may redistribute copies of Emacs\n");
807 printf ("under the terms of the GNU General Public License.\n");
808 printf ("For more information about these matters, ");
809 printf ("see the file named COPYING.\n");
814 /* Map in shared memory, if we are using that. */
816 if (argmatch (argv
, argc
, "-nl", "--no-shared-memory", 6, NULL
, &skip_args
))
819 /* The shared memory was just restored, which clobbered this. */
825 /* The shared memory was just restored, which clobbered this. */
832 extern int malloc_cookie
;
833 /* This helps out unexnext.c. */
835 if (malloc_jumpstart (malloc_cookie
) != 0)
836 printf ("malloc jumpstart failed!\n");
841 /* If -map specified, map the data file in. */
844 if (argmatch (argv
, argc
, "-map", "--map-data", 3, &mapin_file
, &skip_args
))
848 #ifdef LINK_CRTL_SHARE
849 #ifdef SHARABLE_LIB_BUG
850 /* Bletcherous shared libraries! */
852 stdin
= fdopen (0, "r");
854 stdout
= fdopen (1, "w");
856 stderr
= fdopen (2, "w");
859 #endif /* SHARABLE_LIB_BUG */
860 #endif /* LINK_CRTL_SHARE */
863 #if defined (HAVE_SETRLIMIT) && defined (RLIMIT_STACK)
864 /* Extend the stack space available.
865 Don't do that if dumping, since some systems (e.g. DJGPP)
866 might define a smaller stack limit at that time. */
869 && (!noninteractive
|| initialized
)
871 && !getrlimit (RLIMIT_STACK
, &rlim
))
874 extern int re_max_failures
;
875 /* Approximate the amount regex.c needs per unit of re_max_failures. */
876 int ratio
= 20 * sizeof (char *);
877 /* Then add 33% to cover the size of the smaller stacks that regex.c
878 successively allocates and discards, on its way to the maximum. */
880 /* Add in some extra to cover
881 what we're likely to use for other reasons. */
882 newlim
= re_max_failures
* ratio
+ 200000;
884 /* NetBSD (at least NetBSD 1.2G and former) has a bug in its
885 stack allocation routine for new process that the allocation
886 fails if stack limit is not on page boundary. So, round up the
887 new limit to page boundary. */
888 newlim
= (newlim
+ getpagesize () - 1) / getpagesize () * getpagesize();
890 if (newlim
> rlim
.rlim_max
)
892 newlim
= rlim
.rlim_max
;
893 /* Don't let regex.c overflow the stack we have. */
894 re_max_failures
= (newlim
- 200000) / ratio
;
896 if (rlim
.rlim_cur
< newlim
)
897 rlim
.rlim_cur
= newlim
;
899 setrlimit (RLIMIT_STACK
, &rlim
);
901 #endif /* HAVE_SETRLIMIT and RLIMIT_STACK */
903 /* Record (approximately) where the stack begins. */
904 stack_bottom
= &stack_bottom_variable
;
906 #ifdef USG_SHARED_LIBRARIES
908 brk ((void *)bss_end
);
913 #ifndef SYSTEM_MALLOC
914 /* Arrange to get warning messages as memory fills up. */
915 memory_warnings (0, malloc_warning
);
917 /* Call malloc at least once, to run the initial __malloc_hook.
918 Also call realloc and free for consistency. */
919 free (realloc (malloc (4), 4));
921 /* Arrange to disable interrupt input inside malloc etc. */
922 uninterrupt_malloc ();
923 #endif /* not SYSTEM_MALLOC */
926 /* We do all file input/output as binary files. When we need to translate
927 newlines, we do that manually. */
931 if (!isatty (fileno (stdin
)))
932 setmode (fileno (stdin
), O_BINARY
);
933 if (!isatty (fileno (stdout
)))
936 setmode (fileno (stdout
), O_BINARY
);
938 #else /* not __DJGPP__ >= 2 */
939 (stdin
)->_flag
&= ~_IOTEXT
;
940 (stdout
)->_flag
&= ~_IOTEXT
;
941 (stderr
)->_flag
&= ~_IOTEXT
;
942 #endif /* not __DJGPP__ >= 2 */
945 #ifdef SET_EMACS_PRIORITY
947 nice (emacs_priority
);
949 #endif /* SET_EMACS_PRIORITY */
951 /* Skip initial setlocale if LC_ALL is "C", as it's not needed in that case.
952 The build procedure uses this while dumping, to ensure that the
953 dumped Emacs does not have its system locale tables initialized,
954 as that might cause screwups when the dumped Emacs starts up. */
956 char *lc_all
= getenv ("LC_ALL");
957 do_initial_setlocale
= ! lc_all
|| strcmp (lc_all
, "C");
960 /* Set locale now, so that initial error messages are localized properly.
961 fixup_locale must wait until later, since it builds strings. */
962 if (do_initial_setlocale
)
963 setlocale (LC_ALL
, "");
965 #ifdef EXTRA_INITIALIZE
969 inhibit_window_system
= 0;
971 /* Handle the -t switch, which specifies filename to use as terminal. */
975 if (argmatch (argv
, argc
, "-t", "--terminal", 4, &term
, &skip_args
))
980 result
= emacs_open (term
, O_RDWR
, 0);
983 char *errstring
= strerror (errno
);
984 fprintf (stderr
, "%s: %s: %s\n", argv
[0], term
, errstring
);
990 fprintf (stderr
, "%s: %s: not a tty\n", argv
[0], term
);
993 fprintf (stderr
, "Using %s\n", term
);
994 #ifdef HAVE_WINDOW_SYSTEM
995 inhibit_window_system
= 1; /* -t => -nw */
1002 if (argmatch (argv
, argc
, "-nw", "--no-windows", 6, NULL
, &skip_args
))
1003 inhibit_window_system
= 1;
1005 /* Handle the -batch switch, which means don't do interactive display. */
1007 if (argmatch (argv
, argc
, "-batch", "--batch", 5, NULL
, &skip_args
))
1010 /* Handle the --help option, which gives a usage message. */
1011 if (argmatch (argv
, argc
, "-help", "--help", 3, NULL
, &skip_args
))
1013 printf (USAGE1
, argv
[0]);
1015 printf (USAGE3
, bug_reporting_address());
1019 if (! noninteractive
)
1024 inherited_pgroup
= EMACS_GETPGRP (0);
1025 setpgrp (0, getpid ());
1028 #if defined (USG5) && defined (INTERRUPT_INPUT)
1036 /* Don't catch SIGHUP if dumping. */
1043 sigblock (sigmask (SIGHUP
));
1044 /* In --batch mode, don't catch SIGHUP if already ignored.
1045 That makes nohup work. */
1046 if (! noninteractive
1047 || signal (SIGHUP
, SIG_IGN
) != SIG_IGN
)
1048 signal (SIGHUP
, fatal_error_signal
);
1049 sigunblock (sigmask (SIGHUP
));
1054 ! noninteractive
|| initialized
1060 /* Don't catch these signals in batch mode if dumping.
1061 On some machines, this sets static data that would make
1062 signal fail to work right when the dumped Emacs is run. */
1063 signal (SIGQUIT
, fatal_error_signal
);
1064 signal (SIGILL
, fatal_error_signal
);
1065 signal (SIGTRAP
, fatal_error_signal
);
1067 signal (SIGUSR1
, handle_USR1_signal
);
1069 signal (SIGUSR2
, handle_USR2_signal
);
1073 signal (SIGABRT
, fatal_error_signal
);
1076 signal (SIGHWE
, fatal_error_signal
);
1079 signal (SIGPRE
, fatal_error_signal
);
1082 signal (SIGORE
, fatal_error_signal
);
1085 signal (SIGUME
, fatal_error_signal
);
1088 signal (SIGDLK
, fatal_error_signal
);
1091 signal (SIGCPULIM
, fatal_error_signal
);
1094 /* This is missing on some systems - OS/2, for example. */
1095 signal (SIGIOT
, fatal_error_signal
);
1098 signal (SIGEMT
, fatal_error_signal
);
1100 signal (SIGFPE
, fatal_error_signal
);
1102 signal (SIGBUS
, fatal_error_signal
);
1104 signal (SIGSEGV
, fatal_error_signal
);
1106 signal (SIGSYS
, fatal_error_signal
);
1108 signal (SIGTERM
, fatal_error_signal
);
1110 signal (SIGXCPU
, fatal_error_signal
);
1113 signal (SIGXFSZ
, fatal_error_signal
);
1114 #endif /* SIGXFSZ */
1117 /* This just means available memory is getting low. */
1118 signal (SIGDANGER
, memory_warning_signal
);
1122 /* 20 is SIGCHLD, 21 is SIGTTIN, 22 is SIGTTOU. */
1123 signal (SIGXCPU
, fatal_error_signal
);
1125 signal (SIGIOINT
, fatal_error_signal
);
1127 signal (SIGGRANT
, fatal_error_signal
);
1128 signal (SIGRETRACT
, fatal_error_signal
);
1129 signal (SIGSOUND
, fatal_error_signal
);
1130 signal (SIGMSG
, fatal_error_signal
);
1134 noninteractive1
= noninteractive
;
1136 /* Perform basic initializations (not merely interning symbols). */
1143 init_charset_once ();
1144 init_coding_once ();
1145 init_syntax_once (); /* Create standard syntax table. */
1146 init_category_once (); /* Create standard category table. */
1147 /* Must be done before init_buffer. */
1148 init_casetab_once ();
1149 init_buffer_once (); /* Create buffer table and some buffers. */
1150 init_minibuf_once (); /* Create list of minibuffers. */
1151 /* Must precede init_window_once. */
1153 /* Call syms_of_xfaces before init_window_once because that
1154 function creates Vterminal_frame. Termcap frames now use
1155 faces, and the face implementation uses some symbols as
1158 /* Call syms_of_keyboard before init_window_once because
1159 keyboard sets up symbols that include some face names that
1160 the X support will want to use. This can happen when
1161 CANNOT_DUMP is defined. */
1162 syms_of_keyboard ();
1165 /* init_window_once calls make_terminal_frame which on Mac OS
1166 creates a full-fledge output_mac type frame. This does not
1167 work correctly before syms_of_textprop, syms_of_macfns,
1168 syms_of_ccl, syms_of_fontset, syms_of_xterm, syms_of_search,
1169 syms_of_frame, x_term_init, and init_keyboard have already
1171 syms_of_textprop ();
1185 init_window_once (); /* Init the window system. */
1186 init_fileio_once (); /* Must precede any path manipulation. */
1191 if (do_initial_setlocale
)
1194 Vsystem_messages_locale
= Vprevious_system_messages_locale
;
1195 Vsystem_time_locale
= Vprevious_system_time_locale
;
1200 #ifdef CLASH_DETECTION
1204 running_asynch_code
= 0;
1206 /* Handle --unibyte and the EMACS_UNIBYTE envvar,
1207 but not while dumping. */
1210 ! noninteractive
|| initialized
1216 int inhibit_unibyte
= 0;
1218 /* --multibyte overrides EMACS_UNIBYTE. */
1219 if (argmatch (argv
, argc
, "-no-unibyte", "--no-unibyte", 4, NULL
, &skip_args
)
1220 || argmatch (argv
, argc
, "-multibyte", "--multibyte", 4, NULL
, &skip_args
))
1221 inhibit_unibyte
= 1;
1223 /* --unibyte requests that we set up to do everything with single-byte
1224 buffers and strings. We need to handle this before calling
1225 init_lread, init_editfns and other places that generate Lisp strings
1226 from text in the environment. */
1227 /* Actually this shouldn't be needed as of 20.4 in a generally
1228 unibyte environment. As handa says, environment values
1229 aren't now decoded; also existing buffers are now made
1230 unibyte during startup if .emacs sets unibyte. Tested with
1231 8-bit data in environment variables and /etc/passwd, setting
1232 unibyte and Latin-1 in .emacs. -- Dave Love */
1233 if (argmatch (argv
, argc
, "-unibyte", "--unibyte", 4, NULL
, &skip_args
)
1234 || argmatch (argv
, argc
, "-no-multibyte", "--no-multibyte", 4, NULL
, &skip_args
)
1235 || (getenv ("EMACS_UNIBYTE") && !inhibit_unibyte
))
1237 Lisp_Object old_log_max
;
1238 Lisp_Object symbol
, tail
;
1240 symbol
= intern ("default-enable-multibyte-characters");
1241 Fset (symbol
, Qnil
);
1245 /* Erase pre-dump messages in *Messages* now so no abort. */
1246 old_log_max
= Vmessage_log_max
;
1247 XSETFASTINT (Vmessage_log_max
, 0);
1248 message_dolog ("", 0, 1, 0);
1249 Vmessage_log_max
= old_log_max
;
1252 for (tail
= Vbuffer_alist
; CONSP (tail
);
1257 buffer
= Fcdr (XCAR (tail
));
1258 /* Verify that all buffers are empty now, as they
1260 if (BUF_Z (XBUFFER (buffer
)) > BUF_BEG (XBUFFER (buffer
)))
1262 /* It is safe to do this crudely in an empty buffer. */
1263 XBUFFER (buffer
)->enable_multibyte_characters
= Qnil
;
1269 = argmatch (argv
, argc
, "-nl", "--no-loadup", 6, NULL
, &skip_args
);
1272 #ifdef HAVE_X_WINDOWS
1273 /* Stupid kludge to catch command-line display spec. We can't
1274 handle this argument entirely in window system dependent code
1275 because we don't even know which window system dependent code
1276 to run until we've recognized this argument. */
1278 char *displayname
= 0;
1279 int count_before
= skip_args
;
1281 /* Skip any number of -d options, but only use the last one. */
1284 int count_before_this
= skip_args
;
1286 if (argmatch (argv
, argc
, "-d", "--display", 3, &displayname
, &skip_args
))
1288 else if (argmatch (argv
, argc
, "-display", 0, 3, &displayname
, &skip_args
))
1293 count_before
= count_before_this
;
1296 /* If we have the form --display=NAME,
1297 convert it into -d name.
1298 This requires inserting a new element into argv. */
1299 if (displayname
!= 0 && skip_args
- count_before
== 1)
1301 char **new = (char **) xmalloc (sizeof (char *) * (argc
+ 2));
1304 for (j
= 0; j
< count_before
+ 1; j
++)
1306 new[count_before
+ 1] = "-d";
1307 new[count_before
+ 2] = displayname
;
1308 for (j
= count_before
+ 2; j
<argc
; j
++)
1309 new[j
+ 1] = argv
[j
];
1313 /* Change --display to -d, when its arg is separate. */
1314 else if (displayname
!= 0 && skip_args
> count_before
1315 && argv
[count_before
+ 1][1] == '-')
1316 argv
[count_before
+ 1] = "-d";
1318 /* Don't actually discard this arg. */
1319 skip_args
= count_before
;
1323 /* argmatch must not be used after here,
1324 except when bulding temacs
1325 because the -d argument has not been skipped in skip_args. */
1328 /* Call early 'cause init_environment needs it. */
1330 /* Set defaults for several environment variables. */
1332 init_environment (argc
, argv
, skip_args
);
1338 /* Initialize environment from registry settings. */
1339 init_environment (argv
);
1340 init_ntproc (); /* must precede init_editfns. */
1343 /* egetenv is a pretty low-level facility, which may get called in
1344 many circumstances; it seems flimsy to put off initializing it
1345 until calling init_callproc. */
1346 set_process_environment ();
1347 /* AIX crashes are reported in system versions 3.2.3 and 3.2.4
1348 if this is not done. Do it after set_process_environment so that we
1349 don't pollute Vprocess_environment. */
1350 /* Setting LANG here will defeat the startup locale processing... */
1355 init_buffer (); /* Init default directory of main buffer. */
1357 init_callproc_1 (); /* Must precede init_cmdargs and init_sys_modes. */
1358 init_cmdargs (argc
, argv
, skip_args
); /* Must precede init_lread. */
1362 /* Erase any pre-dump messages in the message log, to avoid confusion. */
1363 Lisp_Object old_log_max
;
1364 old_log_max
= Vmessage_log_max
;
1365 XSETFASTINT (Vmessage_log_max
, 0);
1366 message_dolog ("", 0, 1, 0);
1367 Vmessage_log_max
= old_log_max
;
1370 init_callproc (); /* Must follow init_cmdargs but not init_sys_modes. */
1373 /* Intern the names of all standard functions and variables;
1374 define standard keys. */
1378 /* The basic levels of Lisp must come first. */
1379 /* And data must come first of all
1380 for the sake of symbols like error-message. */
1382 /* Called before init_window_once for Mac OS. */
1390 syms_of_floatfns ();
1394 syms_of_bytecode ();
1396 syms_of_casefiddle ();
1398 syms_of_callproc ();
1399 syms_of_category ();
1401 /* Called before init_window_once for Mac OS. */
1406 #ifndef NO_DIR_LIBRARY
1408 #endif /* not NO_DIR_LIBRARY */
1414 syms_of_coding (); /* This should be after syms_of_fileio. */
1415 #ifdef CLASH_DETECTION
1416 syms_of_filelock ();
1417 #endif /* CLASH_DETECTION */
1424 syms_of_mocklisp ();
1427 /* Called before init_window_once for Mac OS. */
1438 /* Called before init_window_once for Mac OS. */
1439 syms_of_textprop ();
1441 syms_of_composite ();
1447 #endif /* WINDOWSNT */
1450 #ifdef HAVE_X_WINDOWS
1457 #endif /* HAVE_X_WINDOWS */
1468 syms_of_w32select ();
1471 #endif /* HAVE_NTGUI */
1481 keys_of_casefiddle ();
1484 keys_of_keyboard ();
1491 if (!noninteractive
)
1494 init_vms_input ();/* init_display calls get_frame_size, that needs this. */
1496 init_display (); /* Determine terminal type. init_sys_modes uses results. */
1499 /* Called before init_window_once for Mac OS. */
1500 init_keyboard (); /* This too must precede init_sys_modes. */
1503 init_vmsproc (); /* And this too. */
1505 init_sys_modes (); /* Init system terminal modes (RAW or CBREAK, etc.). */
1506 #ifdef HAVE_X_WINDOWS
1508 #endif /* HAVE_X_WINDOWS */
1526 /* Handle -l loadup, args passed by Makefile. */
1527 if (argmatch (argv
, argc
, "-l", "--load", 3, &file
, &skip_args
))
1528 Vtop_level
= Fcons (intern ("load"),
1529 Fcons (build_string (file
), Qnil
));
1531 /* Unless next switch is -nl, load "loadup.el" first thing. */
1533 Vtop_level
= Fcons (intern ("load"),
1534 Fcons (build_string ("loadup.el"), Qnil
));
1535 #endif /* CANNOT_DUMP */
1542 /* If the execution TZ happens to be the same as the dump TZ,
1543 change it to some other value and then change it back,
1544 to force the underlying implementation to reload the TZ info.
1545 This is needed on implementations that load TZ info from files,
1546 since the TZ file contents may differ between dump and execution. */
1547 char *tz
= getenv ("TZ");
1548 if (tz
&& !strcmp (tz
, dump_tz
))
1558 /* Set up for profiling. This is known to work on FreeBSD and
1559 GNU/Linux. It might work on some other systems too. Give it a
1560 try and tell us if it works on your system. To compile for
1561 profiling use something like `make CFLAGS="-pg -g -O -DPROFILING=1'. */
1562 #if defined (__FreeBSD__) || defined (__linux)
1566 extern void _mcleanup ();
1568 extern void safe_bcopy ();
1569 extern void dump_opcode_frequencies ();
1572 /* This uses safe_bcopy because that function comes first in the
1573 Emacs executable. It might be better to use something that
1574 gives the start of the text segment, but start_of_text is not
1575 defined on all systems now. */
1576 monstartup (safe_bcopy
, &etext
);
1585 #ifdef LOCALTIME_CACHE
1586 /* Some versions of localtime have a bug. They cache the value of the time
1587 zone rather than looking it up every time. Since localtime() is
1588 called to bolt the undumping time into the undumped emacs, this
1589 results in localtime ignoring the TZ environment variable.
1590 This flushes the new TZ value into localtime. */
1592 #endif /* defined (LOCALTIME_CACHE) */
1594 /* Enter editor command loop. This never returns. */
1600 /* Sort the args so we can find the most important ones
1601 at the beginning of argv. */
1603 /* First, here's a table of all the standard options. */
1605 struct standard_args
1613 struct standard_args standard_args
[] =
1615 { "-version", "--version", 150, 0 },
1617 { "-nl", "--no-shared-memory", 140, 0 },
1620 { "-map", "--map-data", 130, 0 },
1622 { "-t", "--terminal", 120, 1 },
1623 { "-nw", "--no-windows", 110, 0 },
1624 { "-batch", "--batch", 100, 0 },
1625 { "-help", "--help", 90, 0 },
1626 { "-no-unibyte", "--no-unibyte", 83, 0 },
1627 { "-multibyte", "--multibyte", 82, 0 },
1628 { "-unibyte", "--unibyte", 81, 0 },
1629 { "-no-multibyte", "--no-multibyte", 80, 0 },
1631 { "-nl", "--no-loadup", 70, 0 },
1633 /* -d must come last before the options handled in startup.el. */
1634 { "-d", "--display", 60, 1 },
1635 { "-display", 0, 60, 1 },
1636 /* Now for the options handled in startup.el. */
1637 { "-q", "--no-init-file", 50, 0 },
1638 { "-no-init-file", 0, 50, 0 },
1639 { "-no-site-file", "--no-site-file", 40, 0 },
1640 { "-u", "--user", 30, 1 },
1641 { "-user", 0, 30, 1 },
1642 { "-debug-init", "--debug-init", 20, 0 },
1643 { "-i", "--icon-type", 15, 0 },
1644 { "-itype", 0, 15, 0 },
1645 { "-iconic", "--iconic", 15, 0 },
1646 { "-bg", "--background-color", 10, 1 },
1647 { "-background", 0, 10, 1 },
1648 { "-fg", "--foreground-color", 10, 1 },
1649 { "-foreground", 0, 10, 1 },
1650 { "-bd", "--border-color", 10, 1 },
1651 { "-bw", "--border-width", 10, 1 },
1652 { "-ib", "--internal-border", 10, 1 },
1653 { "-ms", "--mouse-color", 10, 1 },
1654 { "-cr", "--cursor-color", 10, 1 },
1655 { "-fn", "--font", 10, 1 },
1656 { "-font", 0, 10, 1 },
1657 { "-g", "--geometry", 10, 1 },
1658 { "-geometry", 0, 10, 1 },
1659 { "-T", "--title", 10, 1 },
1660 { "-title", 0, 10, 1 },
1661 { "-name", "--name", 10, 1 },
1662 { "-xrm", "--xrm", 10, 1 },
1663 { "-r", "--reverse-video", 5, 0 },
1665 { "-reverse", 0, 5, 0 },
1666 { "-hb", "--horizontal-scroll-bars", 5, 0 },
1667 { "-vb", "--vertical-scroll-bars", 5, 0 },
1668 /* These have the same priority as ordinary file name args,
1669 so they are not reordered with respect to those. */
1670 { "-L", "--directory", 0, 1 },
1671 { "-directory", 0, 0, 1 },
1672 { "-l", "--load", 0, 1 },
1673 { "-load", 0, 0, 1 },
1674 { "-f", "--funcall", 0, 1 },
1675 { "-funcall", 0, 0, 1 },
1676 { "-eval", "--eval", 0, 1 },
1677 { "-execute", "--execute", 0, 1 },
1678 { "-find-file", "--find-file", 0, 1 },
1679 { "-visit", "--visit", 0, 1 },
1680 { "-file", "--file", 0, 1 },
1681 { "-insert", "--insert", 0, 1 },
1682 /* This should be processed after ordinary file name args and the like. */
1683 { "-kill", "--kill", -10, 0 },
1686 /* Reorder the elements of ARGV (assumed to have ARGC elements)
1687 so that the highest priority ones come first.
1688 Do not change the order of elements of equal priority.
1689 If an option takes an argument, keep it and its argument together.
1691 If an option that takes no argument appears more
1692 than once, eliminate all but one copy of it. */
1695 sort_args (argc
, argv
)
1699 char **new = (char **) xmalloc (sizeof (char *) * argc
);
1700 /* For each element of argv,
1701 the corresponding element of options is:
1702 0 for an option that takes no arguments,
1703 1 for an option that takes one argument, etc.
1704 -1 for an ordinary non-option argument. */
1705 int *options
= (int *) xmalloc (sizeof (int) * argc
);
1706 int *priority
= (int *) xmalloc (sizeof (int) * argc
);
1708 int incoming_used
= 1;
1712 /* Categorize all the options,
1713 and figure out which argv elts are option arguments. */
1714 for (from
= 1; from
< argc
; from
++)
1718 if (argv
[from
][0] == '-')
1723 /* If we have found "--", don't consider
1724 any more arguments as options. */
1725 if (argv
[from
][1] == '-' && argv
[from
][2] == 0)
1727 /* Leave the "--", and everything following it, at the end. */
1728 for (; from
< argc
; from
++)
1730 priority
[from
] = -100;
1736 /* Look for a match with a known old-fashioned option. */
1737 for (i
= 0; i
< sizeof (standard_args
) / sizeof (standard_args
[0]); i
++)
1738 if (!strcmp (argv
[from
], standard_args
[i
].name
))
1740 options
[from
] = standard_args
[i
].nargs
;
1741 priority
[from
] = standard_args
[i
].priority
;
1742 if (from
+ standard_args
[i
].nargs
>= argc
)
1743 fatal ("Option `%s' requires an argument\n", argv
[from
]);
1744 from
+= standard_args
[i
].nargs
;
1748 /* Look for a match with a known long option.
1749 MATCH is -1 if no match so far, -2 if two or more matches so far,
1750 >= 0 (the table index of the match) if just one match so far. */
1751 if (argv
[from
][1] == '-')
1754 thislen
= strlen (argv
[from
]);
1755 equals
= index (argv
[from
], '=');
1757 thislen
= equals
- argv
[from
];
1760 i
< sizeof (standard_args
) / sizeof (standard_args
[0]); i
++)
1761 if (standard_args
[i
].longname
1762 && !strncmp (argv
[from
], standard_args
[i
].longname
,
1771 /* If we found exactly one match, use that. */
1774 options
[from
] = standard_args
[match
].nargs
;
1775 priority
[from
] = standard_args
[match
].priority
;
1776 /* If --OPTION=VALUE syntax is used,
1777 this option uses just one argv element. */
1780 if (from
+ options
[from
] >= argc
)
1781 fatal ("Option `%s' requires an argument\n", argv
[from
]);
1782 from
+= options
[from
];
1789 /* Copy the arguments, in order of decreasing priority, to NEW. */
1791 while (incoming_used
< argc
)
1794 int best_priority
= -9999;
1796 /* Find the highest priority remaining option.
1797 If several have equal priority, take the first of them. */
1798 for (from
= 1; from
< argc
; from
++)
1800 if (argv
[from
] != 0 && priority
[from
] > best_priority
)
1802 best_priority
= priority
[from
];
1805 /* Skip option arguments--they are tied to the options. */
1806 if (options
[from
] > 0)
1807 from
+= options
[from
];
1813 /* Copy the highest priority remaining option, with its args, to NEW.
1814 Unless it is a duplicate of the previous one. */
1815 if (! (options
[best
] == 0
1816 && ! strcmp (new[to
- 1], argv
[best
])))
1818 new[to
++] = argv
[best
];
1819 for (i
= 0; i
< options
[best
]; i
++)
1820 new[to
++] = argv
[best
+ i
+ 1];
1823 incoming_used
+= 1 + (options
[best
] > 0 ? options
[best
] : 0);
1825 /* Clear out this option in ARGV. */
1827 for (i
= 0; i
< options
[best
]; i
++)
1828 argv
[best
+ i
+ 1] = 0;
1831 /* If duplicate options were deleted, fill up extra space with null ptrs. */
1835 bcopy (new, argv
, sizeof (char *) * argc
);
1842 DEFUN ("kill-emacs", Fkill_emacs
, Skill_emacs
, 0, 1, "P",
1843 doc
: /* Exit the Emacs job and kill it.
1844 If ARG is an integer, return ARG as the exit program code.
1845 If ARG is a string, stuff it as keyboard input.
1847 The value of `kill-emacs-hook', if not void,
1848 is a list of functions (of no args),
1849 all of which are called before Emacs is actually killed. */)
1853 struct gcpro gcpro1
;
1860 if (!NILP (Vrun_hooks
) && !noninteractive
)
1861 call1 (Vrun_hooks
, intern ("kill-emacs-hook"));
1865 /* Is it really necessary to do this deassign
1866 when we are going to exit anyway? */
1871 shut_down_emacs (0, 0, STRINGP (arg
) ? arg
: Qnil
);
1873 /* If we have an auto-save list file,
1874 kill it because we are exiting Emacs deliberately (not crashing).
1875 Do it after shut_down_emacs, which does an auto-save. */
1876 if (STRINGP (Vauto_save_list_file_name
))
1877 unlink (XSTRING (Vauto_save_list_file_name
)->data
);
1879 exit (INTEGERP (arg
) ? XINT (arg
)
1890 /* Perform an orderly shutdown of Emacs. Autosave any modified
1891 buffers, kill any child processes, clean up the terminal modes (if
1892 we're in the foreground), and other stuff like that. Don't perform
1893 any redisplay; this may be called when Emacs is shutting down in
1894 the background, or after its X connection has died.
1896 If SIG is a signal number, print a message for it.
1898 This is called by fatal signal handlers, X protocol error handlers,
1902 shut_down_emacs (sig
, no_x
, stuff
)
1906 /* Prevent running of hooks from now on. */
1909 /* If we are controlling the terminal, reset terminal modes. */
1910 #ifdef EMACS_HAVE_TTY_PGRP
1912 int pgrp
= EMACS_GETPGRP (0);
1915 if (EMACS_GET_TTY_PGRP (0, &tpgrp
) != -1
1920 if (sig
&& sig
!= SIGTERM
)
1921 fprintf (stderr
, "Fatal error (%d).", sig
);
1929 stuff_buffered_input (stuff
);
1931 kill_buffer_processes (Qnil
);
1932 Fdo_auto_save (Qt
, Qnil
);
1934 #ifdef CLASH_DETECTION
1935 unlock_all_files ();
1939 kill_vms_processes ();
1942 #if 0 /* This triggers a bug in XCloseDisplay and is not needed. */
1943 #ifdef HAVE_X_WINDOWS
1944 /* It's not safe to call intern here. Maybe we are crashing. */
1945 if (!noninteractive
&& SYMBOLP (Vwindow_system
)
1946 && XSYMBOL (Vwindow_system
)->name
->size
== 1
1947 && XSYMBOL (Vwindow_system
)->name
->data
[0] == 'x'
1949 Fx_close_current_connection ();
1950 #endif /* HAVE_X_WINDOWS */
1954 /* There is a tendency for a SIGIO signal to arrive within exit,
1955 and cause a SIGHUP because the input descriptor is already closed. */
1957 signal (SIGIO
, SIG_IGN
);
1964 /* Do this only if terminating normally, we want glyph matrices
1965 etc. in a core dump. */
1966 if (sig
== 0 || sig
== SIGTERM
)
1968 check_glyph_memory ();
1969 check_message_stack ();
1983 DEFUN ("dump-emacs-data", Fdump_emacs_data
, Sdump_emacs_data
, 1, 1, 0,
1984 doc
: /* Dump current state of Emacs into data file FILENAME.
1985 This function exists on systems that use HAVE_SHM. */)
1987 Lisp_Object filename
;
1989 extern char my_edata
[];
1993 CHECK_STRING (filename
, 0);
1994 filename
= Fexpand_file_name (filename
, Qnil
);
1997 Vpurify_flag
= Qnil
;
2000 /* Tell malloc where start of impure now is. */
2001 /* Also arrange for warnings when nearly out of space. */
2002 #ifndef SYSTEM_MALLOC
2003 memory_warnings (my_edata
, malloc_warning
);
2005 map_out_data (XSTRING (filename
)->data
);
2012 #else /* not HAVE_SHM */
2014 DEFUN ("dump-emacs", Fdump_emacs
, Sdump_emacs
, 2, 2, 0,
2015 doc
: /* Dump current state of Emacs into executable file FILENAME.
2016 Take symbols from SYMFILE (presumably the file you executed to run Emacs).
2017 This is used in the file `loadup.el' when building Emacs.
2019 You must run Emacs in batch mode in order to dump it. */)
2021 Lisp_Object filename
, symfile
;
2023 extern char my_edata
[];
2026 int count
= BINDING_STACK_SIZE ();
2030 if (! noninteractive
)
2031 error ("Dumping Emacs works only in batch mode");
2033 /* Bind `command-line-processed' to nil before dumping,
2034 so that the dumped Emacs will process its command line
2035 and set up to work with X windows if appropriate. */
2036 symbol
= intern ("command-line-process");
2037 specbind (symbol
, Qnil
);
2039 CHECK_STRING (filename
, 0);
2040 filename
= Fexpand_file_name (filename
, Qnil
);
2041 if (!NILP (symfile
))
2043 CHECK_STRING (symfile
, 0);
2044 if (XSTRING (symfile
)->size
)
2045 symfile
= Fexpand_file_name (symfile
, Qnil
);
2049 Vpurify_flag
= Qnil
;
2052 set_time_zone_rule (dump_tz
);
2053 #ifndef LOCALTIME_CACHE
2054 /* Force a tz reload, since set_time_zone_rule doesn't. */
2061 mapout_data (XSTRING (filename
)->data
);
2063 /* Tell malloc where start of impure now is. */
2064 /* Also arrange for warnings when nearly out of space. */
2065 #ifndef SYSTEM_MALLOC
2067 /* On Windows, this was done before dumping, and that once suffices.
2068 Meanwhile, my_edata is not valid on Windows. */
2069 memory_warnings (my_edata
, malloc_warning
);
2070 #endif /* not WINDOWSNT */
2072 #ifdef DOUG_LEA_MALLOC
2073 malloc_state_ptr
= malloc_get_state ();
2076 #ifdef USE_MMAP_FOR_BUFFERS
2079 unexec (XSTRING (filename
)->data
,
2080 !NILP (symfile
) ? XSTRING (symfile
)->data
: 0, my_edata
, 0, 0);
2081 #ifdef USE_MMAP_FOR_BUFFERS
2084 #ifdef DOUG_LEA_MALLOC
2085 free (malloc_state_ptr
);
2087 #endif /* not VMS */
2091 return unbind_to (count
, Qnil
);
2094 #endif /* not HAVE_SHM */
2096 #endif /* not CANNOT_DUMP */
2099 /* Recover from setlocale (LC_ALL, ""). */
2103 /* The Emacs Lisp reader needs LC_NUMERIC to be "C",
2104 so that numbers are read and printed properly for Emacs Lisp. */
2105 setlocale (LC_NUMERIC
, "C");
2108 /* Set system locale CATEGORY, with previous locale *PLOCALE, to
2111 synchronize_locale (category
, plocale
, desired_locale
)
2113 Lisp_Object
*plocale
;
2114 Lisp_Object desired_locale
;
2116 if (! EQ (*plocale
, desired_locale
))
2118 *plocale
= desired_locale
;
2119 setlocale (category
, (STRINGP (desired_locale
)
2120 ? (char *)(XSTRING (desired_locale
)->data
)
2125 /* Set system time locale to match Vsystem_time_locale, if possible. */
2127 synchronize_system_time_locale ()
2129 synchronize_locale (LC_TIME
, &Vprevious_system_time_locale
,
2130 Vsystem_time_locale
);
2133 /* Set system messages locale to match Vsystem_messages_locale, if
2136 synchronize_system_messages_locale ()
2139 synchronize_locale (LC_MESSAGES
, &Vprevious_system_messages_locale
,
2140 Vsystem_messages_locale
);
2143 #endif /* HAVE_SETLOCALE */
2150 decode_env_path (evarname
, defalt
)
2151 char *evarname
, *defalt
;
2153 register char *path
, *p
;
2154 Lisp_Object lpath
, element
, tem
;
2156 /* It's okay to use getenv here, because this function is only used
2157 to initialize variables when Emacs starts up, and isn't called
2160 path
= (char *) getenv (evarname
);
2166 /* Ensure values from the environment use the proper directory separator. */
2169 p
= alloca (strlen (path
) + 1);
2173 if ('/' == DIRECTORY_SEP
)
2174 dostounix_filename (path
);
2176 unixtodos_filename (path
);
2182 p
= index (path
, SEPCHAR
);
2183 if (!p
) p
= path
+ strlen (path
);
2184 element
= (p
- path
? make_string (path
, p
- path
)
2185 : build_string ("."));
2187 /* Add /: to the front of the name
2188 if it would otherwise be treated as magic. */
2189 tem
= Ffind_file_name_handler (element
, Qt
);
2191 element
= concat2 (build_string ("/:"), element
);
2193 lpath
= Fcons (element
, lpath
);
2199 return Fnreverse (lpath
);
2205 Qfile_name_handler_alist
= intern ("file-name-handler-alist");
2206 staticpro (&Qfile_name_handler_alist
);
2210 defsubr (&Sdump_emacs_data
);
2212 defsubr (&Sdump_emacs
);
2216 defsubr (&Skill_emacs
);
2218 defsubr (&Sinvocation_name
);
2219 defsubr (&Sinvocation_directory
);
2221 DEFVAR_LISP ("command-line-args", &Vcommand_line_args
,
2222 doc
: /* Args passed by shell to Emacs, as a list of strings. */);
2224 DEFVAR_LISP ("system-type", &Vsystem_type
,
2225 doc
: /* Value is symbol indicating type of operating system you are using. */);
2226 Vsystem_type
= intern (SYSTEM_TYPE
);
2228 DEFVAR_LISP ("system-configuration", &Vsystem_configuration
,
2229 doc
: /* Value is string indicating configuration Emacs was built for.
2230 On MS-Windows, the value reflects the OS flavor and version on which
2231 Emacs is running. */);
2232 Vsystem_configuration
= build_string (EMACS_CONFIGURATION
);
2234 DEFVAR_LISP ("system-configuration-options", &Vsystem_configuration_options
,
2235 doc
: /* String containing the configuration options Emacs was built with. */);
2236 Vsystem_configuration_options
= build_string (EMACS_CONFIG_OPTIONS
);
2238 DEFVAR_BOOL ("noninteractive", &noninteractive1
,
2239 doc
: /* Non-nil means Emacs is running without interactive terminal. */);
2241 DEFVAR_LISP ("kill-emacs-hook", &Vkill_emacs_hook
,
2242 doc
: /* Hook to be run whenever kill-emacs is called.
2243 Since kill-emacs may be invoked when the terminal is disconnected (or
2244 in other similar situations), functions placed on this hook should not
2245 expect to be able to interact with the user. To ask for confirmation,
2246 see `kill-emacs-query-functions' instead. */);
2247 Vkill_emacs_hook
= Qnil
;
2249 empty_string
= build_string ("");
2250 staticpro (&empty_string
);
2253 DEFVAR_LISP ("signal-USR1-hook", &Vsignal_USR1_hook
,
2254 doc
: /* Hook to be run whenever emacs receives a USR1 signal. */);
2255 Vsignal_USR1_hook
= Qnil
;
2257 DEFVAR_LISP ("signal-USR2-hook", &Vsignal_USR2_hook
,
2258 doc
: /* Hook to be run whenever emacs receives a USR2 signal. */);
2259 Vsignal_USR2_hook
= Qnil
;
2264 DEFVAR_INT ("emacs-priority", &emacs_priority
,
2265 doc
: /* Priority for Emacs to run at.
2266 This value is effective only if set before Emacs is dumped,
2267 and only if the Emacs executable is installed with setuid to permit
2268 it to change priority. (Emacs sets its uid back to the real uid.)
2269 Currently, you need to define SET_EMACS_PRIORITY in `config.h'
2270 before you compile Emacs, to enable the code for this feature. */);
2273 DEFVAR_LISP ("path-separator", &Vpath_separator
,
2274 doc
: /* The directory separator in search paths, as a string. */);
2277 Vpath_separator
= make_string (&c
, 1);
2280 DEFVAR_LISP ("invocation-name", &Vinvocation_name
,
2281 doc
: /* The program name that was used to run Emacs.
2282 Any directory names are omitted. */);
2284 DEFVAR_LISP ("invocation-directory", &Vinvocation_directory
,
2285 doc
: /* The directory in which the Emacs executable was found, to run it.
2286 The value is nil if that directory's name is not known. */);
2288 DEFVAR_LISP ("installation-directory", &Vinstallation_directory
,
2289 doc
: /* A directory within which to look for the `lib-src' and `etc' directories.
2290 This is non-nil when we can't find those directories in their standard
2291 installed locations, but we can find them
2292 near where the Emacs executable was found. */);
2293 Vinstallation_directory
= Qnil
;
2295 DEFVAR_LISP ("system-messages-locale", &Vsystem_messages_locale
,
2296 doc
: /* System locale for messages. */);
2297 Vsystem_messages_locale
= Qnil
;
2299 DEFVAR_LISP ("previous-system-messages-locale",
2300 &Vprevious_system_messages_locale
,
2301 doc
: /* Most recently used system locale for messages. */);
2302 Vprevious_system_messages_locale
= Qnil
;
2304 DEFVAR_LISP ("system-time-locale", &Vsystem_time_locale
,
2305 doc
: /* System locale for time. */);
2306 Vsystem_time_locale
= Qnil
;
2308 DEFVAR_LISP ("previous-system-time-locale", &Vprevious_system_time_locale
,
2309 doc
: /* Most recently used system locale for time. */);
2310 Vprevious_system_time_locale
= Qnil
;