1 /* Fully extensible Emacs, running on Unix, intended for GNU.
2 Copyright (C) 1985,86,87,93,94,95,97,98,1999,2001,02,03,2004
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>
49 #include "intervals.h"
54 #include "blockinput.h"
55 #include "syssignal.h"
57 #include "termhooks.h"
67 #include <sys/resource.h>
75 #if !defined (USG) || defined (BSD_PGRPS)
77 #define setpgrp setpgid
81 extern void malloc_warning
P_ ((char *));
82 extern void set_time_zone_rule
P_ ((char *));
84 extern char *index
P_ ((const char *, int));
87 /* Make these values available in GDB, which doesn't see macros. */
95 int gdb_use_union
= 0;
97 int gdb_use_union
= 1;
99 EMACS_INT gdb_valbits
= VALBITS
;
100 EMACS_INT gdb_gctypebits
= GCTYPEBITS
;
102 EMACS_INT gdb_data_seg_bits
= DATA_SEG_BITS
;
104 EMACS_INT gdb_data_seg_bits
= 0;
106 EMACS_INT PVEC_FLAG
= PSEUDOVECTOR_FLAG
;
108 /* Command line args from shell, as list of strings. */
109 Lisp_Object Vcommand_line_args
;
111 /* The name under which Emacs was invoked, with any leading directory
113 Lisp_Object Vinvocation_name
;
115 /* The directory name from which Emacs was invoked. */
116 Lisp_Object Vinvocation_directory
;
118 /* The directory name in which to find subdirs such as lisp and etc.
119 nil means get them only from PATH_LOADSEARCH. */
120 Lisp_Object Vinstallation_directory
;
122 /* Hook run by `kill-emacs' before it does really anything. */
123 Lisp_Object Vkill_emacs_hook
;
125 /* An empty lisp string. To avoid having to build any other. */
126 Lisp_Object empty_string
;
129 /* Hooks for signal USR1 and USR2 handling. */
130 Lisp_Object Vsignal_USR1_hook
;
132 Lisp_Object Vsignal_USR2_hook
;
136 /* Search path separator. */
137 Lisp_Object Vpath_separator
;
139 /* Set nonzero after Emacs has started up the first time.
140 Prevents reinitialization of the Lisp world and keymaps
141 on subsequent starts. */
144 #ifdef DOUG_LEA_MALLOC
145 /* Preserves a pointer to the memory allocated that copies that
146 static data inside glibc's malloc. */
147 void *malloc_state_ptr
;
148 /* From glibc, a routine that returns a copy of the malloc internal state. */
149 extern void *malloc_get_state ();
150 /* From glibc, a routine that overwrites the malloc internal state. */
151 extern void malloc_set_state ();
152 /* Non-zero if the MALLOC_CHECK_ enviroment variable was set while
153 dumping. Used to work around a bug in glibc's malloc. */
154 int malloc_using_checking
;
157 /* Variable whose value is symbol giving operating system type. */
158 Lisp_Object Vsystem_type
;
160 /* Variable whose value is string giving configuration built for. */
161 Lisp_Object Vsystem_configuration
;
163 /* Variable whose value is string giving configuration options,
164 for use when reporting bugs. */
165 Lisp_Object Vsystem_configuration_options
;
167 Lisp_Object Qfile_name_handler_alist
;
169 /* Current and previous system locales for messages and time. */
170 Lisp_Object Vsystem_messages_locale
;
171 Lisp_Object Vprevious_system_messages_locale
;
172 Lisp_Object Vsystem_time_locale
;
173 Lisp_Object Vprevious_system_time_locale
;
175 /* If non-zero, emacs should not attempt to use a window-specific code,
176 but instead should use the virtual terminal under which it was started. */
177 int inhibit_window_system
;
179 /* If nonzero, set Emacs to run at this priority. This is also used
180 in child_setup and sys_suspend to make sure subshells run at normal
181 priority; those functions have their own extern declaration. */
182 EMACS_INT emacs_priority
;
184 /* If non-zero, a filter or a sentinel is running. Tested to save the match
185 data on the first attempt to change it inside asynchronous code. */
186 int running_asynch_code
;
190 extern int inherited_pgroup
;
193 #ifdef HAVE_X_WINDOWS
194 /* If non-zero, -d was specified, meaning we're using some window system. */
198 /* An address near the bottom of the stack.
199 Tells GC how to save a copy of the stack. */
202 #ifdef HAVE_WINDOW_SYSTEM
203 extern Lisp_Object Vwindow_system
;
204 #endif /* HAVE_WINDOW_SYSTEM */
206 extern Lisp_Object Vauto_save_list_file_name
;
208 #ifdef USG_SHARED_LIBRARIES
209 /* If nonzero, this is the place to put the end of the writable segment
212 unsigned int bss_end
= 0;
215 /* Nonzero means running Emacs without interactive terminal. */
219 /* Value of Lisp variable `noninteractive'.
220 Normally same as C variable `noninteractive'
221 but nothing terrible happens if user sets this one. */
225 /* Save argv and argc. */
229 static void sort_args ();
230 void syms_of_emacs ();
232 /* MSVC needs each string be shorter than 2048 bytes, so the usage
233 strings below are split to not overflow this limit. */
235 Usage: %s [OPTION-OR-FILENAME]...\n\
237 Run Emacs, the extensible, customizable, self-documenting real-time\n\
238 display editor. The recommended way to start Emacs for normal editing\n\
239 is with no options at all.\n\
241 Run M-x info RET m emacs RET m command arguments RET inside Emacs to\n\
242 read the main documentation for these command-line arguments.\n\
244 Initialization options:\n\
246 --batch do not do interactive display; implies -q\n\
247 --debug-init enable Emacs Lisp debugger for init file\n\
248 --display, -d DISPLAY use X server DISPLAY\n\
249 --multibyte, --no-unibyte inhibit the effect of EMACS_UNIBYTE\n\
250 --no-desktop do not load a saved desktop\n\
251 --no-init-file, -q load neither ~/.emacs nor default.el\n\
252 --no-shared-memory, -nl do not use shared memory\n\
253 --no-site-file do not load site-start.el\n\
254 --no-splash do not display a splash screen on startup\n\
255 --no-window-system, -nw don't communicate with X, ignoring $DISPLAY\n\
256 --script FILE run FILE as an Emacs Lisp script\n\
257 --terminal, -t DEVICE use DEVICE for terminal I/O\n\
258 --unibyte, --no-multibyte run Emacs in unibyte mode\n\
259 --user, -u USER load ~USER/.emacs instead of your own\n\
265 FILE visit FILE using find-file\n\
266 +LINE FILE visit FILE using find-file, then go to line LINE\n\
267 +LINE:COLUMN FILE visit FILE using find-file, then go to line LINE,\n\
269 --directory, -L DIR add DIR to variable load-path\n\
270 --eval EXPR evaluate Emacs Lisp expression EXPR\n\
271 --execute EXPR evaluate Emacs Lisp expression EXPR\n\
272 --file FILE visit FILE using find-file\n\
273 --find-file FILE visit FILE using find-file\n\
274 --funcall, -f FUNC call Emacs Lisp function FUNC with no arguments\n\
275 --insert FILE insert contents of FILE into current buffer\n\
276 --kill exit without asking for confirmation\n\
277 --load, -l FILE load Emacs Lisp FILE using the load function\n\
278 --visit FILE visit FILE using find-file\n\
284 --background-color, -bg COLOR window background color\n\
285 --border-color, -bd COLOR main border color\n\
286 --border-width, -bw WIDTH width of main border\n\
287 --color MODE color mode for character terminals;\n\
288 MODE defaults to `auto', and can also\n\
289 be `never', `auto', `always',\n\
290 or a mode name like `ansi8'\n\
291 --cursor-color, -cr COLOR color of the Emacs cursor indicating point\n\
292 --font, -fn FONT default font; must be fixed-width\n\
293 --foreground-color, -fg COLOR window foreground color\n\
294 --fullheight, -fh make the first frame high as the screen\n\
295 --fullscreen, -fs make first frame fullscreen\n\
296 --fullwidth, -fw make the first frame wide as the screen\n\
297 --geometry, -g GEOMETRY window geometry\n\
298 --horizontal-scroll-bars, -hb enable horizontal scroll bars\n\
299 --icon-type, -i use picture of gnu for Emacs icon\n\
300 --iconic start Emacs in iconified state\n\
301 --internal-border, -ib WIDTH width between text and main border\n\
302 --line-spacing, -lsp PIXELS additional space to put between lines\n\
303 --mouse-color, -ms COLOR mouse cursor color in Emacs window\n\
304 --name NAME title for initial Emacs frame\n\
305 --reverse-video, -r, -rv switch foreground and background\n\
306 --title, -T TITLE title for initial Emacs frame\n\
307 --vertical-scroll-bars, -vb enable vertical scroll bars\n\
308 --xrm XRESOURCES set additional X resources\n\
309 --help display this help and exit\n\
310 --version output version information and exit\n\
312 You can generally also specify long option names with a single -; for\n\
313 example, -batch as well as --batch. You can use any unambiguous\n\
314 abbreviation for a --option.\n\
316 Various environment variables and window system resources also affect\n\
317 Emacs' operation. See the main documentation.\n\
321 Report bugs to %s. First, please see the Bugs\n\
322 section of the Emacs manual or the file BUGS.\n"
325 /* Signal code for the fatal signal that was received. */
326 int fatal_error_code
;
328 /* Nonzero if handling a fatal error already. */
329 int fatal_error_in_progress
;
331 /* If non-null, call this function from fatal_error_signal before
332 committing suicide. */
334 void (*fatal_error_signal_hook
) P_ ((void));
339 handle_USR1_signal (sig
)
342 struct input_event buf
;
344 bzero (&buf
, sizeof buf
);
345 buf
.kind
= USER_SIGNAL_EVENT
;
346 buf
.frame_or_window
= selected_frame
;
348 kbd_buffer_store_event (&buf
);
354 handle_USR2_signal (sig
)
357 struct input_event buf
;
359 bzero (&buf
, sizeof buf
);
360 buf
.kind
= USER_SIGNAL_EVENT
;
362 buf
.frame_or_window
= selected_frame
;
364 kbd_buffer_store_event (&buf
);
368 /* Handle bus errors, invalid instruction, etc. */
370 fatal_error_signal (sig
)
373 fatal_error_code
= sig
;
374 signal (sig
, SIG_DFL
);
376 TOTALLY_UNBLOCK_INPUT
;
378 /* If fatal error occurs in code below, avoid infinite recursion. */
379 if (! fatal_error_in_progress
)
381 fatal_error_in_progress
= 1;
383 shut_down_emacs (sig
, 0, Qnil
);
387 LIB$
STOP (SS$_ABORT
);
389 /* Signal the same code; this time it will really be fatal.
390 Remember that since we're in a signal handler, the signal we're
391 going to send is probably blocked, so we have to unblock it if we
392 want to really receive it. */
394 sigunblock (sigmask (fatal_error_code
));
397 if (fatal_error_signal_hook
)
398 fatal_error_signal_hook ();
400 kill (getpid (), fatal_error_code
);
406 /* Handler for SIGDANGER. */
408 memory_warning_signal (sig
)
411 signal (sig
, memory_warning_signal
);
413 malloc_warning ("Operating system warns that virtual memory is running low.\n");
415 /* It might be unsafe to call do_auto_save now. */
416 force_auto_save_soon ();
420 /* We define abort, rather than using it from the library,
421 so that GDB can return from a breakpoint here.
422 MSDOS has its own definition in msdos.c. */
424 #if ! defined (DOS_NT) && ! defined (NO_ABORT)
426 #ifndef ABORT_RETURN_TYPE
427 #define ABORT_RETURN_TYPE void
433 kill (getpid (), SIGABRT
);
434 /* This shouldn't be executed, but it prevents a warning. */
440 /* Code for dealing with Lisp access to the Unix command line. */
443 init_cmdargs (argc
, argv
, skip_args
)
449 Lisp_Object name
, dir
, tem
;
450 int count
= SPECPDL_INDEX ();
451 Lisp_Object raw_name
;
456 raw_name
= build_string (argv
[0]);
458 /* Add /: to the front of the name
459 if it would otherwise be treated as magic. */
460 tem
= Ffind_file_name_handler (raw_name
, Qt
);
462 raw_name
= concat2 (build_string ("/:"), raw_name
);
464 Vinvocation_name
= Ffile_name_nondirectory (raw_name
);
465 Vinvocation_directory
= Ffile_name_directory (raw_name
);
467 /* If we got no directory in argv[0], search PATH to find where
468 Emacs actually came from. */
469 if (NILP (Vinvocation_directory
))
472 int yes
= openp (Vexec_path
, Vinvocation_name
,
473 Vexec_suffixes
, &found
, make_number (X_OK
));
476 /* Add /: to the front of the name
477 if it would otherwise be treated as magic. */
478 tem
= Ffind_file_name_handler (found
, Qt
);
480 found
= concat2 (build_string ("/:"), found
);
481 Vinvocation_directory
= Ffile_name_directory (found
);
485 if (!NILP (Vinvocation_directory
)
486 && NILP (Ffile_name_absolute_p (Vinvocation_directory
)))
487 /* Emacs was started with relative path, like ./emacs.
489 Vinvocation_directory
= Fexpand_file_name (Vinvocation_directory
, Qnil
);
491 Vinstallation_directory
= Qnil
;
493 if (!NILP (Vinvocation_directory
))
495 dir
= Vinvocation_directory
;
496 name
= Fexpand_file_name (Vinvocation_name
, dir
);
499 Lisp_Object tem
, lib_src_exists
;
500 Lisp_Object etc_exists
, info_exists
;
502 /* See if dir contains subdirs for use by Emacs.
503 Check for the ones that would exist in a build directory,
504 not including lisp and info. */
505 tem
= Fexpand_file_name (build_string ("lib-src"), dir
);
506 lib_src_exists
= Ffile_exists_p (tem
);
509 /* MSDOS installations frequently remove lib-src, but we still
510 must set installation-directory, or else info won't find
511 its files (it uses the value of installation-directory). */
512 tem
= Fexpand_file_name (build_string ("info"), dir
);
513 info_exists
= Ffile_exists_p (tem
);
518 if (!NILP (lib_src_exists
) || !NILP (info_exists
))
520 tem
= Fexpand_file_name (build_string ("etc"), dir
);
521 etc_exists
= Ffile_exists_p (tem
);
522 if (!NILP (etc_exists
))
524 Vinstallation_directory
525 = Ffile_name_as_directory (dir
);
530 /* See if dir's parent contains those subdirs. */
531 tem
= Fexpand_file_name (build_string ("../lib-src"), dir
);
532 lib_src_exists
= Ffile_exists_p (tem
);
536 /* See the MSDOS commentary above. */
537 tem
= Fexpand_file_name (build_string ("../info"), dir
);
538 info_exists
= Ffile_exists_p (tem
);
543 if (!NILP (lib_src_exists
) || !NILP (info_exists
))
545 tem
= Fexpand_file_name (build_string ("../etc"), dir
);
546 etc_exists
= Ffile_exists_p (tem
);
547 if (!NILP (etc_exists
))
549 tem
= Fexpand_file_name (build_string (".."), dir
);
550 Vinstallation_directory
551 = Ffile_name_as_directory (tem
);
556 /* If the Emacs executable is actually a link,
557 next try the dir that the link points into. */
558 tem
= Ffile_symlink_p (name
);
561 name
= Fexpand_file_name (tem
, dir
);
562 dir
= Ffile_name_directory (name
);
569 Vcommand_line_args
= Qnil
;
571 for (i
= argc
- 1; i
>= 0; i
--)
573 if (i
== 0 || i
> skip_args
)
575 = Fcons (build_string (argv
[i
]), Vcommand_line_args
);
578 unbind_to (count
, Qnil
);
581 DEFUN ("invocation-name", Finvocation_name
, Sinvocation_name
, 0, 0, 0,
582 doc
: /* Return the program name that was used to run Emacs.
583 Any directory names are omitted. */)
586 return Fcopy_sequence (Vinvocation_name
);
589 DEFUN ("invocation-directory", Finvocation_directory
, Sinvocation_directory
,
591 doc
: /* Return the directory name in which the Emacs executable was located. */)
594 return Fcopy_sequence (Vinvocation_directory
);
599 #ifdef LINK_CRTL_SHARE
600 #ifdef SHARABLE_LIB_BUG
601 extern noshare
char **environ
;
602 #endif /* SHARABLE_LIB_BUG */
603 #endif /* LINK_CRTL_SHARE */
607 /* A valid but unlikely value for the TZ environment value.
608 It is OK (though a bit slower) if the user actually chooses this value. */
609 static char dump_tz
[] = "UtC0";
612 #ifndef ORDINARY_LINK
613 /* We don't include crtbegin.o and crtend.o in the link,
614 so these functions and variables might be missed.
615 Provide dummy definitions to avoid error.
616 (We don't have any real constructors or destructors.) */
618 #ifndef GCC_CTORS_IN_LIBC
619 void __do_global_ctors ()
621 void __do_global_ctors_aux ()
623 void __do_global_dtors ()
625 /* GNU/Linux has a bug in its library; avoid an error. */
627 char * __CTOR_LIST__
[2] = { (char *) (-1), 0 };
629 char * __DTOR_LIST__
[2] = { (char *) (-1), 0 };
630 #endif /* GCC_CTORS_IN_LIBC */
633 #endif /* __GNUC__ */
634 #endif /* ORDINARY_LINK */
636 /* Test whether the next argument in ARGV matches SSTR or a prefix of
637 LSTR (at least MINLEN characters). If so, then if VALPTR is non-null
638 (the argument is supposed to have a value) store in *VALPTR either
639 the next argument or the portion of this one after the equal sign.
640 ARGV is read starting at position *SKIPPTR; this index is advanced
641 by the number of arguments used.
643 Too bad we can't just use getopt for all of this, but we don't have
644 enough information to do it right. */
647 argmatch (argv
, argc
, sstr
, lstr
, minlen
, valptr
, skipptr
)
660 /* Don't access argv[argc]; give up in advance. */
661 if (argc
<= *skipptr
+ 1)
664 arg
= argv
[*skipptr
+1];
667 if (strcmp (arg
, sstr
) == 0)
671 *valptr
= argv
[*skipptr
+2];
678 arglen
= (valptr
!= NULL
&& (p
= index (arg
, '=')) != NULL
679 ? p
- arg
: strlen (arg
));
680 if (lstr
== 0 || arglen
< minlen
|| strncmp (arg
, lstr
, arglen
) != 0)
682 else if (valptr
== NULL
)
693 else if (argv
[*skipptr
+2] != NULL
)
695 *valptr
= argv
[*skipptr
+2];
705 #ifdef DOUG_LEA_MALLOC
707 /* malloc can be invoked even before main (e.g. by the dynamic
708 linker), so the dumped malloc state must be restored as early as
709 possible using this special hook. */
712 malloc_initialize_hook ()
715 extern char **environ
;
720 if (!malloc_using_checking
)
721 /* Work around a bug in glibc's malloc. MALLOC_CHECK_ must be
722 ignored if the heap to be restored was constructed without
723 malloc checking. Can't use unsetenv, since that calls malloc. */
727 for (p
= environ
; p
&& *p
; p
++)
728 if (strncmp (*p
, "MALLOC_CHECK_=", 14) == 0)
737 malloc_set_state (malloc_state_ptr
);
738 free (malloc_state_ptr
);
741 malloc_using_checking
= getenv ("MALLOC_CHECK_") != NULL
;
744 void (*__malloc_initialize_hook
) () = malloc_initialize_hook
;
746 #endif /* DOUG_LEA_MALLOC */
749 #define REPORT_EMACS_BUG_ADDRESS "bug-gnu-emacs@gnu.org"
750 #define REPORT_EMACS_BUG_PRETEST_ADDRESS "emacs-pretest-bug@gnu.org"
752 /* This function is used to determine an address to which bug report should
756 bug_reporting_address ()
762 temp
= Fsymbol_value (intern ("emacs-version"));
764 /* When `emacs-version' is invalid, use normal address. */
766 return REPORT_EMACS_BUG_ADDRESS
;
768 string
= SDATA (temp
);
770 /* Count dots in `emacs-version'. */
778 /* When `emacs-version' has at least three dots, it is development or
779 pretest version of Emacs. */
780 return count
>= 3 ? REPORT_EMACS_BUG_PRETEST_ADDRESS
: REPORT_EMACS_BUG_ADDRESS
;
800 char stack_bottom_variable
;
801 int do_initial_setlocale
;
806 #ifdef HAVE_SETRLIMIT
813 extern Lisp_Object
*stack_base
;
817 #ifdef LINUX_SBRK_BUG
821 #ifdef RUN_TIME_REMAP
823 run_time_remap (argv
[0]);
828 unexec_init_emacs_zone ();
831 sort_args (argc
, argv
);
833 while (argv
[argc
]) argc
++;
835 if (argmatch (argv
, argc
, "-version", "--version", 3, NULL
, &skip_args
)
836 /* We don't know the version number unless this is a dumped Emacs.
837 So ignore --version otherwise. */
841 tem
= Fsymbol_value (intern ("emacs-version"));
844 fprintf (stderr
, "Invalid value of `emacs-version'\n");
849 printf ("GNU Emacs %s\n", SDATA (tem
));
850 printf ("Copyright (C) 2002 Free Software Foundation, Inc.\n");
851 printf ("GNU Emacs comes with ABSOLUTELY NO WARRANTY.\n");
852 printf ("You may redistribute copies of Emacs\n");
853 printf ("under the terms of the GNU General Public License.\n");
854 printf ("For more information about these matters, ");
855 printf ("see the file named COPYING.\n");
860 /* Map in shared memory, if we are using that. */
862 if (argmatch (argv
, argc
, "-nl", "--no-shared-memory", 6, NULL
, &skip_args
))
865 /* The shared memory was just restored, which clobbered this. */
871 /* The shared memory was just restored, which clobbered this. */
878 extern int malloc_cookie
;
879 /* This helps out unexnext.c. */
881 if (malloc_jumpstart (malloc_cookie
) != 0)
882 printf ("malloc jumpstart failed!\n");
887 /* Skip process serial number passed in the form -psn_x_y as
888 command-line argument. */
889 if (argc
> skip_args
+ 1 && strncmp (argv
[skip_args
+1], "-psn_", 5) == 0)
894 /* If -map specified, map the data file in. */
897 if (argmatch (argv
, argc
, "-map", "--map-data", 3, &mapin_file
, &skip_args
))
901 #ifdef LINK_CRTL_SHARE
902 #ifdef SHARABLE_LIB_BUG
903 /* Bletcherous shared libraries! */
905 stdin
= fdopen (0, "r");
907 stdout
= fdopen (1, "w");
909 stderr
= fdopen (2, "w");
912 #endif /* SHARABLE_LIB_BUG */
913 #endif /* LINK_CRTL_SHARE */
916 #if defined (HAVE_SETRLIMIT) && defined (RLIMIT_STACK)
917 /* Extend the stack space available.
918 Don't do that if dumping, since some systems (e.g. DJGPP)
919 might define a smaller stack limit at that time. */
922 && (!noninteractive
|| initialized
)
924 && !getrlimit (RLIMIT_STACK
, &rlim
))
927 extern int re_max_failures
;
928 /* Approximate the amount regex.c needs per unit of re_max_failures. */
929 int ratio
= 20 * sizeof (char *);
930 /* Then add 33% to cover the size of the smaller stacks that regex.c
931 successively allocates and discards, on its way to the maximum. */
933 /* Add in some extra to cover
934 what we're likely to use for other reasons. */
935 newlim
= re_max_failures
* ratio
+ 200000;
937 /* NetBSD (at least NetBSD 1.2G and former) has a bug in its
938 stack allocation routine for new process that the allocation
939 fails if stack limit is not on page boundary. So, round up the
940 new limit to page boundary. */
941 newlim
= (newlim
+ getpagesize () - 1) / getpagesize () * getpagesize();
943 if (newlim
> rlim
.rlim_max
)
945 newlim
= rlim
.rlim_max
;
946 /* Don't let regex.c overflow the stack we have. */
947 re_max_failures
= (newlim
- 200000) / ratio
;
949 if (rlim
.rlim_cur
< newlim
)
950 rlim
.rlim_cur
= newlim
;
952 setrlimit (RLIMIT_STACK
, &rlim
);
954 #endif /* HAVE_SETRLIMIT and RLIMIT_STACK */
956 /* Record (approximately) where the stack begins. */
957 stack_bottom
= &stack_bottom_variable
;
959 #ifdef USG_SHARED_LIBRARIES
961 brk ((void *)bss_end
);
966 #ifndef SYSTEM_MALLOC
967 /* Arrange to get warning messages as memory fills up. */
968 memory_warnings (0, malloc_warning
);
970 /* Call malloc at least once, to run the initial __malloc_hook.
971 Also call realloc and free for consistency. */
972 free (realloc (malloc (4), 4));
974 /* Arrange to disable interrupt input inside malloc etc. */
975 uninterrupt_malloc ();
976 #endif /* not SYSTEM_MALLOC */
978 #if defined (MSDOS) || defined (WINDOWSNT)
979 /* We do all file input/output as binary files. When we need to translate
980 newlines, we do that manually. */
982 #endif /* MSDOS || WINDOWSNT */
986 if (!isatty (fileno (stdin
)))
987 setmode (fileno (stdin
), O_BINARY
);
988 if (!isatty (fileno (stdout
)))
991 setmode (fileno (stdout
), O_BINARY
);
993 #else /* not __DJGPP__ >= 2 */
994 (stdin
)->_flag
&= ~_IOTEXT
;
995 (stdout
)->_flag
&= ~_IOTEXT
;
996 (stderr
)->_flag
&= ~_IOTEXT
;
997 #endif /* not __DJGPP__ >= 2 */
1000 #ifdef SET_EMACS_PRIORITY
1002 nice (emacs_priority
);
1004 #endif /* SET_EMACS_PRIORITY */
1006 /* Skip initial setlocale if LC_ALL is "C", as it's not needed in that case.
1007 The build procedure uses this while dumping, to ensure that the
1008 dumped Emacs does not have its system locale tables initialized,
1009 as that might cause screwups when the dumped Emacs starts up. */
1011 char *lc_all
= getenv ("LC_ALL");
1012 do_initial_setlocale
= ! lc_all
|| strcmp (lc_all
, "C");
1015 /* Set locale now, so that initial error messages are localized properly.
1016 fixup_locale must wait until later, since it builds strings. */
1017 if (do_initial_setlocale
)
1018 setlocale (LC_ALL
, "");
1020 #ifdef EXTRA_INITIALIZE
1024 inhibit_window_system
= 0;
1026 /* Handle the -t switch, which specifies filename to use as terminal. */
1030 if (argmatch (argv
, argc
, "-t", "--terminal", 4, &term
, &skip_args
))
1035 result
= emacs_open (term
, O_RDWR
, 0);
1038 char *errstring
= strerror (errno
);
1039 fprintf (stderr
, "%s: %s: %s\n", argv
[0], term
, errstring
);
1045 fprintf (stderr
, "%s: %s: not a tty\n", argv
[0], term
);
1048 fprintf (stderr
, "Using %s\n", term
);
1049 #ifdef HAVE_WINDOW_SYSTEM
1050 inhibit_window_system
= 1; /* -t => -nw */
1057 /* Command line option --no-windows is deprecated and thus not mentioned
1058 in the manual and usage informations. */
1059 if (argmatch (argv
, argc
, "-nw", "--no-window-system", 6, NULL
, &skip_args
)
1060 || argmatch (argv
, argc
, "-nw", "--no-windows", 6, NULL
, &skip_args
))
1061 inhibit_window_system
= 1;
1063 /* Handle the -batch switch, which means don't do interactive display. */
1065 if (argmatch (argv
, argc
, "-batch", "--batch", 5, NULL
, &skip_args
))
1067 if (argmatch (argv
, argc
, "-script", "--script", 3, &junk
, &skip_args
))
1069 noninteractive
= 1; /* Set batch mode. */
1070 /* Convert --script to -l, un-skip it, and sort again so that -l will be
1071 handled in proper sequence. */
1072 argv
[skip_args
- 1] = "-l";
1074 sort_args (argc
, argv
);
1077 /* Handle the --help option, which gives a usage message. */
1078 if (argmatch (argv
, argc
, "-help", "--help", 3, NULL
, &skip_args
))
1080 printf (USAGE1
, argv
[0], USAGE2
);
1082 printf (USAGE4
, bug_reporting_address ());
1086 if (! noninteractive
)
1091 inherited_pgroup
= EMACS_GETPGRP (0);
1092 setpgrp (0, getpid ());
1095 #if defined (USG5) && defined (INTERRUPT_INPUT)
1103 /* Don't catch SIGHUP if dumping. */
1110 sigblock (sigmask (SIGHUP
));
1111 /* In --batch mode, don't catch SIGHUP if already ignored.
1112 That makes nohup work. */
1113 if (! noninteractive
1114 || signal (SIGHUP
, SIG_IGN
) != SIG_IGN
)
1115 signal (SIGHUP
, fatal_error_signal
);
1116 sigunblock (sigmask (SIGHUP
));
1121 ! noninteractive
|| initialized
1127 /* Don't catch these signals in batch mode if dumping.
1128 On some machines, this sets static data that would make
1129 signal fail to work right when the dumped Emacs is run. */
1130 signal (SIGQUIT
, fatal_error_signal
);
1131 signal (SIGILL
, fatal_error_signal
);
1132 signal (SIGTRAP
, fatal_error_signal
);
1134 signal (SIGUSR1
, handle_USR1_signal
);
1136 signal (SIGUSR2
, handle_USR2_signal
);
1140 signal (SIGABRT
, fatal_error_signal
);
1143 signal (SIGHWE
, fatal_error_signal
);
1146 signal (SIGPRE
, fatal_error_signal
);
1149 signal (SIGORE
, fatal_error_signal
);
1152 signal (SIGUME
, fatal_error_signal
);
1155 signal (SIGDLK
, fatal_error_signal
);
1158 signal (SIGCPULIM
, fatal_error_signal
);
1161 /* This is missing on some systems - OS/2, for example. */
1162 signal (SIGIOT
, fatal_error_signal
);
1165 signal (SIGEMT
, fatal_error_signal
);
1167 signal (SIGFPE
, fatal_error_signal
);
1169 signal (SIGBUS
, fatal_error_signal
);
1171 signal (SIGSEGV
, fatal_error_signal
);
1173 signal (SIGSYS
, fatal_error_signal
);
1175 signal (SIGTERM
, fatal_error_signal
);
1177 signal (SIGXCPU
, fatal_error_signal
);
1180 signal (SIGXFSZ
, fatal_error_signal
);
1181 #endif /* SIGXFSZ */
1184 /* This just means available memory is getting low. */
1185 signal (SIGDANGER
, memory_warning_signal
);
1189 /* 20 is SIGCHLD, 21 is SIGTTIN, 22 is SIGTTOU. */
1190 signal (SIGXCPU
, fatal_error_signal
);
1192 signal (SIGIOINT
, fatal_error_signal
);
1194 signal (SIGGRANT
, fatal_error_signal
);
1195 signal (SIGRETRACT
, fatal_error_signal
);
1196 signal (SIGSOUND
, fatal_error_signal
);
1197 signal (SIGMSG
, fatal_error_signal
);
1201 noninteractive1
= noninteractive
;
1203 /* Perform basic initializations (not merely interning symbols). */
1210 init_charset_once ();
1211 init_coding_once ();
1212 init_syntax_once (); /* Create standard syntax table. */
1213 init_category_once (); /* Create standard category table. */
1214 /* Must be done before init_buffer. */
1215 init_casetab_once ();
1216 init_buffer_once (); /* Create buffer table and some buffers. */
1217 init_minibuf_once (); /* Create list of minibuffers. */
1218 /* Must precede init_window_once. */
1220 /* Call syms_of_xfaces before init_window_once because that
1221 function creates Vterminal_frame. Termcap frames now use
1222 faces, and the face implementation uses some symbols as
1225 /* Call syms_of_keyboard before init_window_once because
1226 keyboard sets up symbols that include some face names that
1227 the X support will want to use. This can happen when
1228 CANNOT_DUMP is defined. */
1229 syms_of_keyboard ();
1232 /* init_window_once calls make_terminal_frame which on Mac OS
1233 creates a full-fledge output_mac type frame. This does not
1234 work correctly before syms_of_textprop, syms_of_macfns,
1235 syms_of_ccl, syms_of_fontset, syms_of_xterm, syms_of_search,
1236 syms_of_frame, mac_initialize, and init_keyboard have already
1238 syms_of_textprop ();
1252 init_window_once (); /* Init the window system. */
1253 init_fileio_once (); /* Must precede any path manipulation. */
1254 #ifdef HAVE_WINDOW_SYSTEM
1255 init_fringe_once (); /* Swap bitmaps if necessary. */
1256 #endif /* HAVE_WINDOW_SYSTEM */
1261 if (do_initial_setlocale
)
1264 Vsystem_messages_locale
= Vprevious_system_messages_locale
;
1265 Vsystem_time_locale
= Vprevious_system_time_locale
;
1270 #ifdef CLASH_DETECTION
1274 running_asynch_code
= 0;
1276 /* Handle --unibyte and the EMACS_UNIBYTE envvar,
1277 but not while dumping. */
1280 int inhibit_unibyte
= 0;
1282 /* --multibyte overrides EMACS_UNIBYTE. */
1283 if (argmatch (argv
, argc
, "-no-unibyte", "--no-unibyte", 4, NULL
, &skip_args
)
1284 || argmatch (argv
, argc
, "-multibyte", "--multibyte", 4, NULL
, &skip_args
)
1285 /* Ignore EMACS_UNIBYTE before dumping. */
1286 || (!initialized
&& noninteractive
))
1287 inhibit_unibyte
= 1;
1289 /* --unibyte requests that we set up to do everything with single-byte
1290 buffers and strings. We need to handle this before calling
1291 init_lread, init_editfns and other places that generate Lisp strings
1292 from text in the environment. */
1293 /* Actually this shouldn't be needed as of 20.4 in a generally
1294 unibyte environment. As handa says, environment values
1295 aren't now decoded; also existing buffers are now made
1296 unibyte during startup if .emacs sets unibyte. Tested with
1297 8-bit data in environment variables and /etc/passwd, setting
1298 unibyte and Latin-1 in .emacs. -- Dave Love */
1299 if (argmatch (argv
, argc
, "-unibyte", "--unibyte", 4, NULL
, &skip_args
)
1300 || argmatch (argv
, argc
, "-no-multibyte", "--no-multibyte", 4, NULL
, &skip_args
)
1301 || (getenv ("EMACS_UNIBYTE") && !inhibit_unibyte
))
1303 Lisp_Object old_log_max
;
1304 Lisp_Object symbol
, tail
;
1306 symbol
= intern ("default-enable-multibyte-characters");
1307 Fset (symbol
, Qnil
);
1311 /* Erase pre-dump messages in *Messages* now so no abort. */
1312 old_log_max
= Vmessage_log_max
;
1313 XSETFASTINT (Vmessage_log_max
, 0);
1314 message_dolog ("", 0, 1, 0);
1315 Vmessage_log_max
= old_log_max
;
1318 for (tail
= Vbuffer_alist
; CONSP (tail
);
1323 buffer
= Fcdr (XCAR (tail
));
1324 /* Verify that all buffers are empty now, as they
1326 if (BUF_Z (XBUFFER (buffer
)) > BUF_BEG (XBUFFER (buffer
)))
1328 /* It is safe to do this crudely in an empty buffer. */
1329 XBUFFER (buffer
)->enable_multibyte_characters
= Qnil
;
1335 = argmatch (argv
, argc
, "-nl", "--no-loadup", 6, NULL
, &skip_args
);
1338 #ifdef HAVE_X_WINDOWS
1339 /* Stupid kludge to catch command-line display spec. We can't
1340 handle this argument entirely in window system dependent code
1341 because we don't even know which window system dependent code
1342 to run until we've recognized this argument. */
1344 char *displayname
= 0;
1345 int count_before
= skip_args
;
1347 /* Skip any number of -d options, but only use the last one. */
1350 int count_before_this
= skip_args
;
1352 if (argmatch (argv
, argc
, "-d", "--display", 3, &displayname
, &skip_args
))
1354 else if (argmatch (argv
, argc
, "-display", 0, 3, &displayname
, &skip_args
))
1359 count_before
= count_before_this
;
1362 /* If we have the form --display=NAME,
1363 convert it into -d name.
1364 This requires inserting a new element into argv. */
1365 if (displayname
!= 0 && skip_args
- count_before
== 1)
1367 char **new = (char **) xmalloc (sizeof (char *) * (argc
+ 2));
1370 for (j
= 0; j
< count_before
+ 1; j
++)
1372 new[count_before
+ 1] = "-d";
1373 new[count_before
+ 2] = displayname
;
1374 for (j
= count_before
+ 2; j
<argc
; j
++)
1375 new[j
+ 1] = argv
[j
];
1379 /* Change --display to -d, when its arg is separate. */
1380 else if (displayname
!= 0 && skip_args
> count_before
1381 && argv
[count_before
+ 1][1] == '-')
1382 argv
[count_before
+ 1] = "-d";
1384 /* Don't actually discard this arg. */
1385 skip_args
= count_before
;
1389 /* argmatch must not be used after here,
1390 except when bulding temacs
1391 because the -d argument has not been skipped in skip_args. */
1394 /* Call early 'cause init_environment needs it. */
1396 /* Set defaults for several environment variables. */
1398 init_environment (argc
, argv
, skip_args
);
1405 /* Initialize environment from registry settings. */
1406 init_environment (argv
);
1407 init_ntproc (); /* must precede init_editfns. */
1412 init_mac_osx_environment ();
1415 /* egetenv is a pretty low-level facility, which may get called in
1416 many circumstances; it seems flimsy to put off initializing it
1417 until calling init_callproc. */
1418 set_process_environment ();
1419 /* AIX crashes are reported in system versions 3.2.3 and 3.2.4
1420 if this is not done. Do it after set_process_environment so that we
1421 don't pollute Vprocess_environment. */
1422 /* Setting LANG here will defeat the startup locale processing... */
1427 init_buffer (); /* Init default directory of main buffer. */
1429 init_callproc_1 (); /* Must precede init_cmdargs and init_sys_modes. */
1430 init_cmdargs (argc
, argv
, skip_args
); /* Must precede init_lread. */
1434 /* Erase any pre-dump messages in the message log, to avoid confusion. */
1435 Lisp_Object old_log_max
;
1436 old_log_max
= Vmessage_log_max
;
1437 XSETFASTINT (Vmessage_log_max
, 0);
1438 message_dolog ("", 0, 1, 0);
1439 Vmessage_log_max
= old_log_max
;
1442 init_callproc (); /* Must follow init_cmdargs but not init_sys_modes. */
1445 /* Intern the names of all standard functions and variables;
1446 define standard keys. */
1450 /* The basic levels of Lisp must come first. */
1451 /* And data must come first of all
1452 for the sake of symbols like error-message. */
1454 /* Called before init_window_once for Mac OS Classic. */
1462 syms_of_floatfns ();
1466 syms_of_bytecode ();
1468 syms_of_casefiddle ();
1470 syms_of_callproc ();
1471 syms_of_category ();
1473 /* Called before init_window_once for Mac OS Classic. */
1478 #ifndef NO_DIR_LIBRARY
1480 #endif /* not NO_DIR_LIBRARY */
1486 syms_of_coding (); /* This should be after syms_of_fileio. */
1487 #ifdef CLASH_DETECTION
1488 syms_of_filelock ();
1489 #endif /* CLASH_DETECTION */
1498 /* Called before init_window_once for Mac OS Classic. */
1509 /* Called before init_window_once for Mac OS Classic. */
1510 syms_of_textprop ();
1512 syms_of_composite ();
1518 #endif /* WINDOWSNT */
1521 #ifdef HAVE_WINDOW_SYSTEM
1524 #endif /* HAVE_WINDOW_SYSTEM */
1525 #ifdef HAVE_X_WINDOWS
1535 #endif /* HAVE_X_WINDOWS */
1540 /* Called before init_window_once for Mac OS Classic. */
1549 syms_of_w32select ();
1552 #endif /* HAVE_NTGUI */
1559 #endif /* HAVE_CARBON */
1569 keys_of_casefiddle ();
1572 keys_of_keyboard ();
1580 Initialization that must be done even if the global variable
1581 initialized is non zero
1584 globals_of_w32fns ();
1585 globals_of_w32menu ();
1586 #endif /* end #ifdef HAVE_NTGUI */
1589 if (!noninteractive
)
1592 init_vms_input ();/* init_display calls get_frame_size, that needs this. */
1594 init_display (); /* Determine terminal type. init_sys_modes uses results. */
1597 /* Called before init_window_once for Mac OS Classic. */
1598 init_keyboard (); /* This too must precede init_sys_modes. */
1601 init_vmsproc (); /* And this too. */
1603 init_sys_modes (); /* Init system terminal modes (RAW or CBREAK, etc.). */
1606 #ifdef HAVE_WINDOW_SYSTEM
1609 #endif /* HAVE_WINDOW_SYSTEM */
1625 /* Handle -l loadup, args passed by Makefile. */
1626 if (argmatch (argv
, argc
, "-l", "--load", 3, &file
, &skip_args
))
1627 Vtop_level
= Fcons (intern ("load"),
1628 Fcons (build_string (file
), Qnil
));
1629 /* Unless next switch is -nl, load "loadup.el" first thing. */
1631 Vtop_level
= Fcons (intern ("load"),
1632 Fcons (build_string ("loadup.el"), Qnil
));
1639 /* If the execution TZ happens to be the same as the dump TZ,
1640 change it to some other value and then change it back,
1641 to force the underlying implementation to reload the TZ info.
1642 This is needed on implementations that load TZ info from files,
1643 since the TZ file contents may differ between dump and execution. */
1644 char *tz
= getenv ("TZ");
1645 if (tz
&& !strcmp (tz
, dump_tz
))
1655 /* Set up for profiling. This is known to work on FreeBSD and
1656 GNU/Linux. It might work on some other systems too. Give it a
1657 try and tell us if it works on your system. To compile for
1658 profiling use something like `make CFLAGS="-pg -g -O -DPROFILING=1'. */
1659 #if defined (__FreeBSD__) || defined (__linux)
1663 extern void _mcleanup ();
1665 extern void safe_bcopy ();
1666 extern void dump_opcode_frequencies ();
1669 /* This uses safe_bcopy because that function comes first in the
1670 Emacs executable. It might be better to use something that
1671 gives the start of the text segment, but start_of_text is not
1672 defined on all systems now. */
1673 monstartup (safe_bcopy
, &etext
);
1682 #ifdef LOCALTIME_CACHE
1683 /* Some versions of localtime have a bug. They cache the value of the time
1684 zone rather than looking it up every time. Since localtime() is
1685 called to bolt the undumping time into the undumped emacs, this
1686 results in localtime ignoring the TZ environment variable.
1687 This flushes the new TZ value into localtime. */
1689 #endif /* defined (LOCALTIME_CACHE) */
1691 /* Enter editor command loop. This never returns. */
1697 /* Sort the args so we can find the most important ones
1698 at the beginning of argv. */
1700 /* First, here's a table of all the standard options. */
1702 struct standard_args
1710 struct standard_args standard_args
[] =
1712 { "-version", "--version", 150, 0 },
1714 { "-nl", "--no-shared-memory", 140, 0 },
1717 { "-map", "--map-data", 130, 0 },
1719 { "-t", "--terminal", 120, 1 },
1720 { "-nw", "--no-window-system", 110, 0 },
1721 { "-nw", "--no-windows", 110, 0 },
1722 { "-batch", "--batch", 100, 0 },
1723 { "-script", "--script", 100, 1 },
1724 { "-help", "--help", 90, 0 },
1725 { "-no-unibyte", "--no-unibyte", 83, 0 },
1726 { "-multibyte", "--multibyte", 82, 0 },
1727 { "-unibyte", "--unibyte", 81, 0 },
1728 { "-no-multibyte", "--no-multibyte", 80, 0 },
1729 { "-nl", "--no-loadup", 70, 0 },
1730 /* -d must come last before the options handled in startup.el. */
1731 { "-d", "--display", 60, 1 },
1732 { "-display", 0, 60, 1 },
1733 /* Now for the options handled in startup.el. */
1734 { "-q", "--no-init-file", 50, 0 },
1735 { "-no-init-file", 0, 50, 0 },
1736 { "-no-site-file", "--no-site-file", 40, 0 },
1737 { "-no-splash", "--no-splash", 40, 0 },
1738 { "-u", "--user", 30, 1 },
1739 { "-user", 0, 30, 1 },
1740 { "-debug-init", "--debug-init", 20, 0 },
1741 { "-i", "--icon-type", 15, 0 },
1742 { "-itype", 0, 15, 0 },
1743 { "-iconic", "--iconic", 15, 0 },
1744 { "-bg", "--background-color", 10, 1 },
1745 { "-background", 0, 10, 1 },
1746 { "-fg", "--foreground-color", 10, 1 },
1747 { "-foreground", 0, 10, 1 },
1748 { "-bd", "--border-color", 10, 1 },
1749 { "-bw", "--border-width", 10, 1 },
1750 { "-ib", "--internal-border", 10, 1 },
1751 { "-ms", "--mouse-color", 10, 1 },
1752 { "-cr", "--cursor-color", 10, 1 },
1753 { "-fn", "--font", 10, 1 },
1754 { "-font", 0, 10, 1 },
1755 { "-fs", "--fullscreen", 10, 0 },
1756 { "-fw", "--fullwidth", 10, 0 },
1757 { "-fh", "--fullheight", 10, 0 },
1758 { "-g", "--geometry", 10, 1 },
1759 { "-geometry", 0, 10, 1 },
1760 { "-T", "--title", 10, 1 },
1761 { "-title", 0, 10, 1 },
1762 { "-name", "--name", 10, 1 },
1763 { "-xrm", "--xrm", 10, 1 },
1764 { "-r", "--reverse-video", 5, 0 },
1766 { "-reverse", 0, 5, 0 },
1767 { "-hb", "--horizontal-scroll-bars", 5, 0 },
1768 { "-vb", "--vertical-scroll-bars", 5, 0 },
1769 { "-color", "--color", 5, 0},
1770 /* These have the same priority as ordinary file name args,
1771 so they are not reordered with respect to those. */
1772 { "-L", "--directory", 0, 1 },
1773 { "-directory", 0, 0, 1 },
1774 { "-l", "--load", 0, 1 },
1775 { "-load", 0, 0, 1 },
1776 { "-f", "--funcall", 0, 1 },
1777 { "-funcall", 0, 0, 1 },
1778 { "-eval", "--eval", 0, 1 },
1779 { "-execute", "--execute", 0, 1 },
1780 { "-find-file", "--find-file", 0, 1 },
1781 { "-visit", "--visit", 0, 1 },
1782 { "-file", "--file", 0, 1 },
1783 { "-insert", "--insert", 0, 1 },
1784 /* This should be processed after ordinary file name args and the like. */
1785 { "-kill", "--kill", -10, 0 },
1788 /* Reorder the elements of ARGV (assumed to have ARGC elements)
1789 so that the highest priority ones come first.
1790 Do not change the order of elements of equal priority.
1791 If an option takes an argument, keep it and its argument together.
1793 If an option that takes no argument appears more
1794 than once, eliminate all but one copy of it. */
1797 sort_args (argc
, argv
)
1801 char **new = (char **) xmalloc (sizeof (char *) * argc
);
1802 /* For each element of argv,
1803 the corresponding element of options is:
1804 0 for an option that takes no arguments,
1805 1 for an option that takes one argument, etc.
1806 -1 for an ordinary non-option argument. */
1807 int *options
= (int *) xmalloc (sizeof (int) * argc
);
1808 int *priority
= (int *) xmalloc (sizeof (int) * argc
);
1810 int incoming_used
= 1;
1814 /* Categorize all the options,
1815 and figure out which argv elts are option arguments. */
1816 for (from
= 1; from
< argc
; from
++)
1820 if (argv
[from
][0] == '-')
1825 /* If we have found "--", don't consider
1826 any more arguments as options. */
1827 if (argv
[from
][1] == '-' && argv
[from
][2] == 0)
1829 /* Leave the "--", and everything following it, at the end. */
1830 for (; from
< argc
; from
++)
1832 priority
[from
] = -100;
1838 /* Look for a match with a known old-fashioned option. */
1839 for (i
= 0; i
< sizeof (standard_args
) / sizeof (standard_args
[0]); i
++)
1840 if (!strcmp (argv
[from
], standard_args
[i
].name
))
1842 options
[from
] = standard_args
[i
].nargs
;
1843 priority
[from
] = standard_args
[i
].priority
;
1844 if (from
+ standard_args
[i
].nargs
>= argc
)
1845 fatal ("Option `%s' requires an argument\n", argv
[from
]);
1846 from
+= standard_args
[i
].nargs
;
1850 /* Look for a match with a known long option.
1851 MATCH is -1 if no match so far, -2 if two or more matches so far,
1852 >= 0 (the table index of the match) if just one match so far. */
1853 if (argv
[from
][1] == '-')
1856 thislen
= strlen (argv
[from
]);
1857 equals
= index (argv
[from
], '=');
1859 thislen
= equals
- argv
[from
];
1862 i
< sizeof (standard_args
) / sizeof (standard_args
[0]); i
++)
1863 if (standard_args
[i
].longname
1864 && !strncmp (argv
[from
], standard_args
[i
].longname
,
1873 /* If we found exactly one match, use that. */
1876 options
[from
] = standard_args
[match
].nargs
;
1877 priority
[from
] = standard_args
[match
].priority
;
1878 /* If --OPTION=VALUE syntax is used,
1879 this option uses just one argv element. */
1882 if (from
+ options
[from
] >= argc
)
1883 fatal ("Option `%s' requires an argument\n", argv
[from
]);
1884 from
+= options
[from
];
1891 /* Copy the arguments, in order of decreasing priority, to NEW. */
1893 while (incoming_used
< argc
)
1896 int best_priority
= -9999;
1898 /* Find the highest priority remaining option.
1899 If several have equal priority, take the first of them. */
1900 for (from
= 1; from
< argc
; from
++)
1902 if (argv
[from
] != 0 && priority
[from
] > best_priority
)
1904 best_priority
= priority
[from
];
1907 /* Skip option arguments--they are tied to the options. */
1908 if (options
[from
] > 0)
1909 from
+= options
[from
];
1915 /* Copy the highest priority remaining option, with its args, to NEW.
1916 Unless it is a duplicate of the previous one. */
1917 if (! (options
[best
] == 0
1918 && ! strcmp (new[to
- 1], argv
[best
])))
1920 new[to
++] = argv
[best
];
1921 for (i
= 0; i
< options
[best
]; i
++)
1922 new[to
++] = argv
[best
+ i
+ 1];
1925 incoming_used
+= 1 + (options
[best
] > 0 ? options
[best
] : 0);
1927 /* Clear out this option in ARGV. */
1929 for (i
= 0; i
< options
[best
]; i
++)
1930 argv
[best
+ i
+ 1] = 0;
1933 /* If duplicate options were deleted, fill up extra space with null ptrs. */
1937 bcopy (new, argv
, sizeof (char *) * argc
);
1944 DEFUN ("kill-emacs", Fkill_emacs
, Skill_emacs
, 0, 1, "P",
1945 doc
: /* Exit the Emacs job and kill it.
1946 If ARG is an integer, return ARG as the exit program code.
1947 If ARG is a string, stuff it as keyboard input.
1949 The value of `kill-emacs-hook', if not void,
1950 is a list of functions (of no args),
1951 all of which are called before Emacs is actually killed. */)
1955 struct gcpro gcpro1
;
1962 if (!NILP (Vrun_hooks
) && !noninteractive
)
1963 call1 (Vrun_hooks
, intern ("kill-emacs-hook"));
1967 /* Is it really necessary to do this deassign
1968 when we are going to exit anyway? */
1973 shut_down_emacs (0, 0, STRINGP (arg
) ? arg
: Qnil
);
1975 /* If we have an auto-save list file,
1976 kill it because we are exiting Emacs deliberately (not crashing).
1977 Do it after shut_down_emacs, which does an auto-save. */
1978 if (STRINGP (Vauto_save_list_file_name
))
1979 unlink (SDATA (Vauto_save_list_file_name
));
1981 exit (INTEGERP (arg
) ? XINT (arg
)
1992 /* Perform an orderly shutdown of Emacs. Autosave any modified
1993 buffers, kill any child processes, clean up the terminal modes (if
1994 we're in the foreground), and other stuff like that. Don't perform
1995 any redisplay; this may be called when Emacs is shutting down in
1996 the background, or after its X connection has died.
1998 If SIG is a signal number, print a message for it.
2000 This is called by fatal signal handlers, X protocol error handlers,
2004 shut_down_emacs (sig
, no_x
, stuff
)
2008 /* Prevent running of hooks from now on. */
2011 /* If we are controlling the terminal, reset terminal modes. */
2012 #ifdef EMACS_HAVE_TTY_PGRP
2014 int pgrp
= EMACS_GETPGRP (0);
2017 if (EMACS_GET_TTY_PGRP (0, &tpgrp
) != -1
2022 if (sig
&& sig
!= SIGTERM
)
2023 fprintf (stderr
, "Fatal error (%d)", sig
);
2031 stuff_buffered_input (stuff
);
2033 kill_buffer_processes (Qnil
);
2034 Fdo_auto_save (Qt
, Qnil
);
2036 #ifdef CLASH_DETECTION
2037 unlock_all_files ();
2041 kill_vms_processes ();
2044 #if 0 /* This triggers a bug in XCloseDisplay and is not needed. */
2045 #ifdef HAVE_X_WINDOWS
2046 /* It's not safe to call intern here. Maybe we are crashing. */
2047 if (!noninteractive
&& SYMBOLP (Vwindow_system
)
2048 && SCHARS (SYMBOL_NAME (Vwindow_system
)) == 1
2049 && SREF (SYMBOL_NAME (Vwindow_system
), 0) == 'x'
2051 Fx_close_current_connection ();
2052 #endif /* HAVE_X_WINDOWS */
2056 /* There is a tendency for a SIGIO signal to arrive within exit,
2057 and cause a SIGHUP because the input descriptor is already closed. */
2059 signal (SIGIO
, SIG_IGN
);
2066 /* Do this only if terminating normally, we want glyph matrices
2067 etc. in a core dump. */
2068 if (sig
== 0 || sig
== SIGTERM
)
2070 check_glyph_memory ();
2071 check_message_stack ();
2085 DEFUN ("dump-emacs-data", Fdump_emacs_data
, Sdump_emacs_data
, 1, 1, 0,
2086 doc
: /* Dump current state of Emacs into data file FILENAME.
2087 This function exists on systems that use HAVE_SHM. */)
2089 Lisp_Object filename
;
2091 extern char my_edata
[];
2095 CHECK_STRING (filename
);
2096 filename
= Fexpand_file_name (filename
, Qnil
);
2099 Vpurify_flag
= Qnil
;
2102 /* Tell malloc where start of impure now is. */
2103 /* Also arrange for warnings when nearly out of space. */
2104 #ifndef SYSTEM_MALLOC
2105 memory_warnings (my_edata
, malloc_warning
);
2107 map_out_data (SDATA (filename
));
2114 #else /* not HAVE_SHM */
2116 DEFUN ("dump-emacs", Fdump_emacs
, Sdump_emacs
, 2, 2, 0,
2117 doc
: /* Dump current state of Emacs into executable file FILENAME.
2118 Take symbols from SYMFILE (presumably the file you executed to run Emacs).
2119 This is used in the file `loadup.el' when building Emacs.
2121 You must run Emacs in batch mode in order to dump it. */)
2123 Lisp_Object filename
, symfile
;
2125 extern char my_edata
[];
2128 int count
= SPECPDL_INDEX ();
2132 if (! noninteractive
)
2133 error ("Dumping Emacs works only in batch mode");
2135 /* Bind `command-line-processed' to nil before dumping,
2136 so that the dumped Emacs will process its command line
2137 and set up to work with X windows if appropriate. */
2138 symbol
= intern ("command-line-processed");
2139 specbind (symbol
, Qnil
);
2141 CHECK_STRING (filename
);
2142 filename
= Fexpand_file_name (filename
, Qnil
);
2143 if (!NILP (symfile
))
2145 CHECK_STRING (symfile
);
2146 if (SCHARS (symfile
))
2147 symfile
= Fexpand_file_name (symfile
, Qnil
);
2151 Vpurify_flag
= Qnil
;
2154 set_time_zone_rule (dump_tz
);
2155 #ifndef LOCALTIME_CACHE
2156 /* Force a tz reload, since set_time_zone_rule doesn't. */
2163 mapout_data (SDATA (filename
));
2165 /* Tell malloc where start of impure now is. */
2166 /* Also arrange for warnings when nearly out of space. */
2167 #ifndef SYSTEM_MALLOC
2169 /* On Windows, this was done before dumping, and that once suffices.
2170 Meanwhile, my_edata is not valid on Windows. */
2171 memory_warnings (my_edata
, malloc_warning
);
2172 #endif /* not WINDOWSNT */
2174 #ifdef DOUG_LEA_MALLOC
2175 malloc_state_ptr
= malloc_get_state ();
2178 #ifdef USE_MMAP_FOR_BUFFERS
2181 unexec (SDATA (filename
),
2182 !NILP (symfile
) ? SDATA (symfile
) : 0, my_edata
, 0, 0);
2183 #ifdef USE_MMAP_FOR_BUFFERS
2186 #ifdef DOUG_LEA_MALLOC
2187 free (malloc_state_ptr
);
2189 #endif /* not VMS */
2193 return unbind_to (count
, Qnil
);
2196 #endif /* not HAVE_SHM */
2198 #endif /* not CANNOT_DUMP */
2201 /* Recover from setlocale (LC_ALL, ""). */
2205 /* The Emacs Lisp reader needs LC_NUMERIC to be "C",
2206 so that numbers are read and printed properly for Emacs Lisp. */
2207 setlocale (LC_NUMERIC
, "C");
2210 /* Set system locale CATEGORY, with previous locale *PLOCALE, to
2213 synchronize_locale (category
, plocale
, desired_locale
)
2215 Lisp_Object
*plocale
;
2216 Lisp_Object desired_locale
;
2218 if (! EQ (*plocale
, desired_locale
))
2220 *plocale
= desired_locale
;
2221 setlocale (category
, (STRINGP (desired_locale
)
2222 ? (char *)(SDATA (desired_locale
))
2227 /* Set system time locale to match Vsystem_time_locale, if possible. */
2229 synchronize_system_time_locale ()
2231 synchronize_locale (LC_TIME
, &Vprevious_system_time_locale
,
2232 Vsystem_time_locale
);
2235 /* Set system messages locale to match Vsystem_messages_locale, if
2238 synchronize_system_messages_locale ()
2241 synchronize_locale (LC_MESSAGES
, &Vprevious_system_messages_locale
,
2242 Vsystem_messages_locale
);
2245 #endif /* HAVE_SETLOCALE */
2252 decode_env_path (evarname
, defalt
)
2253 char *evarname
, *defalt
;
2255 register char *path
, *p
;
2256 Lisp_Object lpath
, element
, tem
;
2258 /* It's okay to use getenv here, because this function is only used
2259 to initialize variables when Emacs starts up, and isn't called
2262 path
= (char *) getenv (evarname
);
2268 /* Ensure values from the environment use the proper directory separator. */
2271 p
= alloca (strlen (path
) + 1);
2275 if ('/' == DIRECTORY_SEP
)
2276 dostounix_filename (path
);
2278 unixtodos_filename (path
);
2284 p
= index (path
, SEPCHAR
);
2285 if (!p
) p
= path
+ strlen (path
);
2286 element
= (p
- path
? make_string (path
, p
- path
)
2287 : build_string ("."));
2289 /* Add /: to the front of the name
2290 if it would otherwise be treated as magic. */
2291 tem
= Ffind_file_name_handler (element
, Qt
);
2293 /* However, if the handler says "I'm safe",
2294 don't bother adding /:. */
2298 prop
= Fget (tem
, intern ("safe-magic"));
2304 element
= concat2 (build_string ("/:"), element
);
2306 lpath
= Fcons (element
, lpath
);
2312 return Fnreverse (lpath
);
2318 Qfile_name_handler_alist
= intern ("file-name-handler-alist");
2319 staticpro (&Qfile_name_handler_alist
);
2323 defsubr (&Sdump_emacs_data
);
2325 defsubr (&Sdump_emacs
);
2329 defsubr (&Skill_emacs
);
2331 defsubr (&Sinvocation_name
);
2332 defsubr (&Sinvocation_directory
);
2334 DEFVAR_LISP ("command-line-args", &Vcommand_line_args
,
2335 doc
: /* Args passed by shell to Emacs, as a list of strings.
2336 Many arguments are deleted from the list as they are processed. */);
2338 DEFVAR_LISP ("system-type", &Vsystem_type
,
2339 doc
: /* Value is symbol indicating type of operating system you are using. */);
2340 Vsystem_type
= intern (SYSTEM_TYPE
);
2342 DEFVAR_LISP ("system-configuration", &Vsystem_configuration
,
2343 doc
: /* Value is string indicating configuration Emacs was built for.
2344 On MS-Windows, the value reflects the OS flavor and version on which
2345 Emacs is running. */);
2346 Vsystem_configuration
= build_string (EMACS_CONFIGURATION
);
2348 DEFVAR_LISP ("system-configuration-options", &Vsystem_configuration_options
,
2349 doc
: /* String containing the configuration options Emacs was built with. */);
2350 Vsystem_configuration_options
= build_string (EMACS_CONFIG_OPTIONS
);
2352 DEFVAR_BOOL ("noninteractive", &noninteractive1
,
2353 doc
: /* Non-nil means Emacs is running without interactive terminal. */);
2355 DEFVAR_LISP ("kill-emacs-hook", &Vkill_emacs_hook
,
2356 doc
: /* Hook to be run when kill-emacs is called.
2357 Since `kill-emacs' may be invoked when the terminal is disconnected (or
2358 in other similar situations), functions placed on this hook should not
2359 expect to be able to interact with the user. To ask for confirmation,
2360 see `kill-emacs-query-functions' instead.
2362 The hook is not run in batch mode, i.e., if `noninteractive' is non-nil. */);
2363 Vkill_emacs_hook
= Qnil
;
2365 empty_string
= build_string ("");
2366 staticpro (&empty_string
);
2369 DEFVAR_LISP ("signal-USR1-hook", &Vsignal_USR1_hook
,
2370 doc
: /* Hook to be run whenever emacs receives a USR1 signal. */);
2371 Vsignal_USR1_hook
= Qnil
;
2373 DEFVAR_LISP ("signal-USR2-hook", &Vsignal_USR2_hook
,
2374 doc
: /* Hook to be run whenever emacs receives a USR2 signal. */);
2375 Vsignal_USR2_hook
= Qnil
;
2380 DEFVAR_INT ("emacs-priority", &emacs_priority
,
2381 doc
: /* Priority for Emacs to run at.
2382 This value is effective only if set before Emacs is dumped,
2383 and only if the Emacs executable is installed with setuid to permit
2384 it to change priority. (Emacs sets its uid back to the real uid.)
2385 Currently, you need to define SET_EMACS_PRIORITY in `config.h'
2386 before you compile Emacs, to enable the code for this feature. */);
2389 DEFVAR_LISP ("path-separator", &Vpath_separator
,
2390 doc
: /* The directory separator in search paths, as a string. */);
2393 Vpath_separator
= make_string (&c
, 1);
2396 DEFVAR_LISP ("invocation-name", &Vinvocation_name
,
2397 doc
: /* The program name that was used to run Emacs.
2398 Any directory names are omitted. */);
2400 DEFVAR_LISP ("invocation-directory", &Vinvocation_directory
,
2401 doc
: /* The directory in which the Emacs executable was found, to run it.
2402 The value is nil if that directory's name is not known. */);
2404 DEFVAR_LISP ("installation-directory", &Vinstallation_directory
,
2405 doc
: /* A directory within which to look for the `lib-src' and `etc' directories.
2406 This is non-nil when we can't find those directories in their standard
2407 installed locations, but we can find them
2408 near where the Emacs executable was found. */);
2409 Vinstallation_directory
= Qnil
;
2411 DEFVAR_LISP ("system-messages-locale", &Vsystem_messages_locale
,
2412 doc
: /* System locale for messages. */);
2413 Vsystem_messages_locale
= Qnil
;
2415 DEFVAR_LISP ("previous-system-messages-locale",
2416 &Vprevious_system_messages_locale
,
2417 doc
: /* Most recently used system locale for messages. */);
2418 Vprevious_system_messages_locale
= Qnil
;
2420 DEFVAR_LISP ("system-time-locale", &Vsystem_time_locale
,
2421 doc
: /* System locale for time. */);
2422 Vsystem_time_locale
= Qnil
;
2424 DEFVAR_LISP ("previous-system-time-locale", &Vprevious_system_time_locale
,
2425 doc
: /* Most recently used system locale for time. */);
2426 Vprevious_system_time_locale
= Qnil
;
2429 /* arch-tag: 7bfd356a-c720-4612-8ab6-aa4222931c2e
2430 (do not change this comment) */