1 /* Fully extensible Emacs, running on Unix, intended for GNU.
2 Copyright (C) 1985,86,87,93,94,95,97,98,1999,2001,02,2003
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. */
89 EMACS_INT gdb_valbits
= VALBITS
;
90 EMACS_INT gdb_gctypebits
= GCTYPEBITS
;
91 EMACS_INT gdb_emacs_intbits
= sizeof (EMACS_INT
) * BITS_PER_CHAR
;
93 EMACS_INT gdb_data_seg_bits
= DATA_SEG_BITS
;
95 EMACS_INT gdb_data_seg_bits
= 0;
97 EMACS_INT PVEC_FLAG
= PSEUDOVECTOR_FLAG
;
99 /* Command line args from shell, as list of strings. */
100 Lisp_Object Vcommand_line_args
;
102 /* The name under which Emacs was invoked, with any leading directory
104 Lisp_Object Vinvocation_name
;
106 /* The directory name from which Emacs was invoked. */
107 Lisp_Object Vinvocation_directory
;
109 /* The directory name in which to find subdirs such as lisp and etc.
110 nil means get them only from PATH_LOADSEARCH. */
111 Lisp_Object Vinstallation_directory
;
113 /* Hook run by `kill-emacs' before it does really anything. */
114 Lisp_Object Vkill_emacs_hook
;
116 /* An empty lisp string. To avoid having to build any other. */
117 Lisp_Object empty_string
;
120 /* Hooks for signal USR1 and USR2 handling. */
121 Lisp_Object Vsignal_USR1_hook
;
123 Lisp_Object Vsignal_USR2_hook
;
127 /* Search path separator. */
128 Lisp_Object Vpath_separator
;
130 /* Set nonzero after Emacs has started up the first time.
131 Prevents reinitialization of the Lisp world and keymaps
132 on subsequent starts. */
135 #ifdef DOUG_LEA_MALLOC
136 /* Preserves a pointer to the memory allocated that copies that
137 static data inside glibc's malloc. */
138 void *malloc_state_ptr
;
139 /* From glibc, a routine that returns a copy of the malloc internal state. */
140 extern void *malloc_get_state ();
141 /* From glibc, a routine that overwrites the malloc internal state. */
142 extern void malloc_set_state ();
143 /* Non-zero if the MALLOC_CHECK_ enviroment variable was set while
144 dumping. Used to work around a bug in glibc's malloc. */
145 int malloc_using_checking
;
148 /* Variable whose value is symbol giving operating system type. */
149 Lisp_Object Vsystem_type
;
151 /* Variable whose value is string giving configuration built for. */
152 Lisp_Object Vsystem_configuration
;
154 /* Variable whose value is string giving configuration options,
155 for use when reporting bugs. */
156 Lisp_Object Vsystem_configuration_options
;
158 Lisp_Object Qfile_name_handler_alist
;
160 /* Current and previous system locales for messages and time. */
161 Lisp_Object Vsystem_messages_locale
;
162 Lisp_Object Vprevious_system_messages_locale
;
163 Lisp_Object Vsystem_time_locale
;
164 Lisp_Object Vprevious_system_time_locale
;
166 /* If non-zero, emacs should not attempt to use a window-specific code,
167 but instead should use the virtual terminal under which it was started. */
168 int inhibit_window_system
;
170 /* If nonzero, set Emacs to run at this priority. This is also used
171 in child_setup and sys_suspend to make sure subshells run at normal
172 priority; those functions have their own extern declaration. */
173 EMACS_INT emacs_priority
;
175 /* If non-zero, a filter or a sentinel is running. Tested to save the match
176 data on the first attempt to change it inside asynchronous code. */
177 int running_asynch_code
;
181 extern int inherited_pgroup
;
184 #ifdef HAVE_X_WINDOWS
185 /* If non-zero, -d was specified, meaning we're using some window system. */
189 /* An address near the bottom of the stack.
190 Tells GC how to save a copy of the stack. */
193 #ifdef HAVE_WINDOW_SYSTEM
194 extern Lisp_Object Vwindow_system
;
195 #endif /* HAVE_WINDOW_SYSTEM */
197 extern Lisp_Object Vauto_save_list_file_name
;
199 #ifdef USG_SHARED_LIBRARIES
200 /* If nonzero, this is the place to put the end of the writable segment
203 unsigned int bss_end
= 0;
206 /* Nonzero means running Emacs without interactive terminal. */
210 /* Value of Lisp variable `noninteractive'.
211 Normally same as C variable `noninteractive'
212 but nothing terrible happens if user sets this one. */
216 /* Save argv and argc. */
220 static void sort_args ();
221 void syms_of_emacs ();
223 /* MSVC needs each string be shorter than 2048 bytes, so the usage
224 strings below are split to not overflow this limit. */
226 Usage: %s [OPTION-OR-FILENAME]...\n\
228 Run Emacs, the extensible, customizable, self-documenting real-time\n\
229 display editor. The recommended way to start Emacs for normal editing\n\
230 is with no options at all.\n\
232 Run M-x info RET m emacs RET m command arguments RET inside Emacs to\n\
233 read the main documentation for these command-line arguments.\n\
235 Initialization options:\n\
237 --batch do not do interactive display; implies -q\n\
238 --debug-init enable Emacs Lisp debugger for init file\n\
239 --display, -d DISPLAY use X server DISPLAY\n\
240 --multibyte, --no-unibyte inhibit the effect of EMACS_UNIBYTE\n\
241 --no-desktop do not load a saved desktop\n\
242 --no-init-file, -q load neither ~/.emacs nor default.el\n\
243 --no-shared-memory, -nl do not use shared memory\n\
244 --no-site-file do not load site-start.el\n\
245 --no-splash do not display a splash screen on startup\n\
246 --no-window-system, -nw don't communicate with X, ignoring $DISPLAY\n\
247 --script FILE run FILE as an Emacs Lisp script\n\
248 --terminal, -t DEVICE use DEVICE for terminal I/O\n\
249 --unibyte, --no-multibyte run Emacs in unibyte mode\n\
250 --user, -u USER load ~USER/.emacs instead of your own\n\
256 FILE visit FILE using find-file\n\
257 +LINE FILE visit FILE using find-file, then go to line LINE\n\
258 +LINE:COLUMN FILE visit FILE using find-file, then go to line LINE,\n\
260 --directory, -L DIR add DIR to variable load-path\n\
261 --eval EXPR evaluate Emacs Lisp expression EXPR\n\
262 --execute EXPR evaluate Emacs Lisp expression EXPR\n\
263 --file FILE visit FILE using find-file\n\
264 --find-file FILE visit FILE using find-file\n\
265 --funcall, -f FUNC call Emacs Lisp function FUNC with no arguments\n\
266 --insert FILE insert contents of FILE into current buffer\n\
267 --kill exit without asking for confirmation\n\
268 --load, -l FILE load Emacs Lisp FILE using the load function\n\
269 --visit FILE visit FILE using find-file\n\
275 --background-color, -bg COLOR window background color\n\
276 --border-color, -bd COLOR main border color\n\
277 --border-width, -bw WIDTH width of main border\n\
278 --color MODE color mode for character terminals;\n\
279 MODE defaults to `auto', and can also\n\
280 be `never', `auto', `always',\n\
281 or a mode name like `ansi8'\n\
282 --cursor-color, -cr COLOR color of the Emacs cursor indicating point\n\
283 --font, -fn FONT default font; must be fixed-width\n\
284 --foreground-color, -fg COLOR window foreground color\n\
285 --fullheight, -fh make the first frame high as the screen\n\
286 --fullscreen, -fs make first frame fullscreen\n\
287 --fullwidth, -fw make the first frame wide as the screen\n\
288 --geometry, -g GEOMETRY window geometry\n\
289 --horizontal-scroll-bars, -hb enable horizontal scroll bars\n\
290 --icon-type, -i use picture of gnu for Emacs icon\n\
291 --iconic start Emacs in iconified state\n\
292 --internal-border, -ib WIDTH width between text and main border\n\
293 --line-spacing, -lsp PIXELS additional space to put between lines\n\
294 --mouse-color, -ms COLOR mouse cursor color in Emacs window\n\
295 --name NAME title for initial Emacs frame\n\
296 --reverse-video, -r, -rv switch foreground and background\n\
297 --title, -T TITLE title for initial Emacs frame\n\
298 --vertical-scroll-bars, -vb enable vertical scroll bars\n\
299 --xrm XRESOURCES set additional X resources\n\
300 --help display this help and exit\n\
301 --version output version information and exit\n\
303 You can generally also specify long option names with a single -; for\n\
304 example, -batch as well as --batch. You can use any unambiguous\n\
305 abbreviation for a --option.\n\
307 Various environment variables and window system resources also affect\n\
308 Emacs' operation. See the main documentation.\n\
312 Report bugs to %s. First, please see the Bugs\n\
313 section of the Emacs manual or the file BUGS.\n"
316 /* Signal code for the fatal signal that was received. */
317 int fatal_error_code
;
319 /* Nonzero if handling a fatal error already. */
320 int fatal_error_in_progress
;
322 /* If non-null, call this function from fatal_error_signal before
323 committing suicide. */
325 void (*fatal_error_signal_hook
) P_ ((void));
330 handle_USR1_signal (sig
)
333 struct input_event buf
;
335 bzero (&buf
, sizeof buf
);
336 buf
.kind
= USER_SIGNAL_EVENT
;
337 buf
.frame_or_window
= selected_frame
;
339 kbd_buffer_store_event (&buf
);
345 handle_USR2_signal (sig
)
348 struct input_event buf
;
350 bzero (&buf
, sizeof buf
);
351 buf
.kind
= USER_SIGNAL_EVENT
;
353 buf
.frame_or_window
= selected_frame
;
355 kbd_buffer_store_event (&buf
);
359 /* Handle bus errors, invalid instruction, etc. */
361 fatal_error_signal (sig
)
364 fatal_error_code
= sig
;
365 signal (sig
, SIG_DFL
);
367 TOTALLY_UNBLOCK_INPUT
;
369 /* If fatal error occurs in code below, avoid infinite recursion. */
370 if (! fatal_error_in_progress
)
372 fatal_error_in_progress
= 1;
374 shut_down_emacs (sig
, 0, Qnil
);
378 LIB$
STOP (SS$_ABORT
);
380 /* Signal the same code; this time it will really be fatal.
381 Remember that since we're in a signal handler, the signal we're
382 going to send is probably blocked, so we have to unblock it if we
383 want to really receive it. */
385 sigunblock (sigmask (fatal_error_code
));
388 if (fatal_error_signal_hook
)
389 fatal_error_signal_hook ();
391 kill (getpid (), fatal_error_code
);
397 /* Handler for SIGDANGER. */
399 memory_warning_signal (sig
)
402 signal (sig
, memory_warning_signal
);
404 malloc_warning ("Operating system warns that virtual memory is running low.\n");
406 /* It might be unsafe to call do_auto_save now. */
407 force_auto_save_soon ();
411 /* We define abort, rather than using it from the library,
412 so that GDB can return from a breakpoint here.
413 MSDOS has its own definition in msdos.c. */
415 #if ! defined (DOS_NT) && ! defined (NO_ABORT)
417 #ifndef ABORT_RETURN_TYPE
418 #define ABORT_RETURN_TYPE void
424 kill (getpid (), SIGABRT
);
425 /* This shouldn't be executed, but it prevents a warning. */
431 /* Code for dealing with Lisp access to the Unix command line. */
434 init_cmdargs (argc
, argv
, skip_args
)
440 Lisp_Object name
, dir
, tem
;
441 int count
= SPECPDL_INDEX ();
442 Lisp_Object raw_name
;
447 raw_name
= build_string (argv
[0]);
449 /* Add /: to the front of the name
450 if it would otherwise be treated as magic. */
451 tem
= Ffind_file_name_handler (raw_name
, Qt
);
453 raw_name
= concat2 (build_string ("/:"), raw_name
);
455 Vinvocation_name
= Ffile_name_nondirectory (raw_name
);
456 Vinvocation_directory
= Ffile_name_directory (raw_name
);
458 /* If we got no directory in argv[0], search PATH to find where
459 Emacs actually came from. */
460 if (NILP (Vinvocation_directory
))
463 int yes
= openp (Vexec_path
, Vinvocation_name
,
464 Vexec_suffixes
, &found
, make_number (X_OK
));
467 /* Add /: to the front of the name
468 if it would otherwise be treated as magic. */
469 tem
= Ffind_file_name_handler (found
, Qt
);
471 found
= concat2 (build_string ("/:"), found
);
472 Vinvocation_directory
= Ffile_name_directory (found
);
476 if (!NILP (Vinvocation_directory
)
477 && NILP (Ffile_name_absolute_p (Vinvocation_directory
)))
478 /* Emacs was started with relative path, like ./emacs.
480 Vinvocation_directory
= Fexpand_file_name (Vinvocation_directory
, Qnil
);
482 Vinstallation_directory
= Qnil
;
484 if (!NILP (Vinvocation_directory
))
486 dir
= Vinvocation_directory
;
487 name
= Fexpand_file_name (Vinvocation_name
, dir
);
490 Lisp_Object tem
, lib_src_exists
;
491 Lisp_Object etc_exists
, info_exists
;
493 /* See if dir contains subdirs for use by Emacs.
494 Check for the ones that would exist in a build directory,
495 not including lisp and info. */
496 tem
= Fexpand_file_name (build_string ("lib-src"), dir
);
497 lib_src_exists
= Ffile_exists_p (tem
);
500 /* MSDOS installations frequently remove lib-src, but we still
501 must set installation-directory, or else info won't find
502 its files (it uses the value of installation-directory). */
503 tem
= Fexpand_file_name (build_string ("info"), dir
);
504 info_exists
= Ffile_exists_p (tem
);
509 if (!NILP (lib_src_exists
) || !NILP (info_exists
))
511 tem
= Fexpand_file_name (build_string ("etc"), dir
);
512 etc_exists
= Ffile_exists_p (tem
);
513 if (!NILP (etc_exists
))
515 Vinstallation_directory
516 = Ffile_name_as_directory (dir
);
521 /* See if dir's parent contains those subdirs. */
522 tem
= Fexpand_file_name (build_string ("../lib-src"), dir
);
523 lib_src_exists
= Ffile_exists_p (tem
);
527 /* See the MSDOS commentary above. */
528 tem
= Fexpand_file_name (build_string ("../info"), dir
);
529 info_exists
= Ffile_exists_p (tem
);
534 if (!NILP (lib_src_exists
) || !NILP (info_exists
))
536 tem
= Fexpand_file_name (build_string ("../etc"), dir
);
537 etc_exists
= Ffile_exists_p (tem
);
538 if (!NILP (etc_exists
))
540 tem
= Fexpand_file_name (build_string (".."), dir
);
541 Vinstallation_directory
542 = Ffile_name_as_directory (tem
);
547 /* If the Emacs executable is actually a link,
548 next try the dir that the link points into. */
549 tem
= Ffile_symlink_p (name
);
552 name
= Fexpand_file_name (tem
, dir
);
553 dir
= Ffile_name_directory (name
);
560 Vcommand_line_args
= Qnil
;
562 for (i
= argc
- 1; i
>= 0; i
--)
564 if (i
== 0 || i
> skip_args
)
566 = Fcons (build_string (argv
[i
]), Vcommand_line_args
);
569 unbind_to (count
, Qnil
);
572 DEFUN ("invocation-name", Finvocation_name
, Sinvocation_name
, 0, 0, 0,
573 doc
: /* Return the program name that was used to run Emacs.
574 Any directory names are omitted. */)
577 return Fcopy_sequence (Vinvocation_name
);
580 DEFUN ("invocation-directory", Finvocation_directory
, Sinvocation_directory
,
582 doc
: /* Return the directory name in which the Emacs executable was located. */)
585 return Fcopy_sequence (Vinvocation_directory
);
590 #ifdef LINK_CRTL_SHARE
591 #ifdef SHARABLE_LIB_BUG
592 extern noshare
char **environ
;
593 #endif /* SHARABLE_LIB_BUG */
594 #endif /* LINK_CRTL_SHARE */
598 /* A valid but unlikely value for the TZ environment value.
599 It is OK (though a bit slower) if the user actually chooses this value. */
600 static char dump_tz
[] = "UtC0";
603 #ifndef ORDINARY_LINK
604 /* We don't include crtbegin.o and crtend.o in the link,
605 so these functions and variables might be missed.
606 Provide dummy definitions to avoid error.
607 (We don't have any real constructors or destructors.) */
609 #ifndef GCC_CTORS_IN_LIBC
610 void __do_global_ctors ()
612 void __do_global_ctors_aux ()
614 void __do_global_dtors ()
616 /* GNU/Linux has a bug in its library; avoid an error. */
618 char * __CTOR_LIST__
[2] = { (char *) (-1), 0 };
620 char * __DTOR_LIST__
[2] = { (char *) (-1), 0 };
621 #endif /* GCC_CTORS_IN_LIBC */
624 #endif /* __GNUC__ */
625 #endif /* ORDINARY_LINK */
627 /* Test whether the next argument in ARGV matches SSTR or a prefix of
628 LSTR (at least MINLEN characters). If so, then if VALPTR is non-null
629 (the argument is supposed to have a value) store in *VALPTR either
630 the next argument or the portion of this one after the equal sign.
631 ARGV is read starting at position *SKIPPTR; this index is advanced
632 by the number of arguments used.
634 Too bad we can't just use getopt for all of this, but we don't have
635 enough information to do it right. */
638 argmatch (argv
, argc
, sstr
, lstr
, minlen
, valptr
, skipptr
)
651 /* Don't access argv[argc]; give up in advance. */
652 if (argc
<= *skipptr
+ 1)
655 arg
= argv
[*skipptr
+1];
658 if (strcmp (arg
, sstr
) == 0)
662 *valptr
= argv
[*skipptr
+2];
669 arglen
= (valptr
!= NULL
&& (p
= index (arg
, '=')) != NULL
670 ? p
- arg
: strlen (arg
));
671 if (lstr
== 0 || arglen
< minlen
|| strncmp (arg
, lstr
, arglen
) != 0)
673 else if (valptr
== NULL
)
684 else if (argv
[*skipptr
+2] != NULL
)
686 *valptr
= argv
[*skipptr
+2];
696 #ifdef DOUG_LEA_MALLOC
698 /* malloc can be invoked even before main (e.g. by the dynamic
699 linker), so the dumped malloc state must be restored as early as
700 possible using this special hook. */
703 malloc_initialize_hook ()
706 extern char **environ
;
711 if (!malloc_using_checking
)
712 /* Work around a bug in glibc's malloc. MALLOC_CHECK_ must be
713 ignored if the heap to be restored was constructed without
714 malloc checking. Can't use unsetenv, since that calls malloc. */
718 for (p
= environ
; p
&& *p
; p
++)
719 if (strncmp (*p
, "MALLOC_CHECK_=", 14) == 0)
728 malloc_set_state (malloc_state_ptr
);
729 free (malloc_state_ptr
);
732 malloc_using_checking
= getenv ("MALLOC_CHECK_") != NULL
;
735 void (*__malloc_initialize_hook
) () = malloc_initialize_hook
;
737 #endif /* DOUG_LEA_MALLOC */
740 #define REPORT_EMACS_BUG_ADDRESS "bug-gnu-emacs@gnu.org"
741 #define REPORT_EMACS_BUG_PRETEST_ADDRESS "emacs-pretest-bug@gnu.org"
743 /* This function is used to determine an address to which bug report should
747 bug_reporting_address ()
753 temp
= Fsymbol_value (intern ("emacs-version"));
755 /* When `emacs-version' is invalid, use normal address. */
757 return REPORT_EMACS_BUG_ADDRESS
;
759 string
= SDATA (temp
);
761 /* Count dots in `emacs-version'. */
769 /* When `emacs-version' has at least three dots, it is development or
770 pretest version of Emacs. */
771 return count
>= 3 ? REPORT_EMACS_BUG_PRETEST_ADDRESS
: REPORT_EMACS_BUG_ADDRESS
;
791 char stack_bottom_variable
;
792 int do_initial_setlocale
;
797 #ifdef HAVE_SETRLIMIT
804 extern Lisp_Object
*stack_base
;
808 #ifdef LINUX_SBRK_BUG
812 #ifdef RUN_TIME_REMAP
814 run_time_remap (argv
[0]);
819 unexec_init_emacs_zone ();
822 sort_args (argc
, argv
);
824 while (argv
[argc
]) argc
++;
826 if (argmatch (argv
, argc
, "-version", "--version", 3, NULL
, &skip_args
)
827 /* We don't know the version number unless this is a dumped Emacs.
828 So ignore --version otherwise. */
832 tem
= Fsymbol_value (intern ("emacs-version"));
835 fprintf (stderr
, "Invalid value of `emacs-version'\n");
840 printf ("GNU Emacs %s\n", SDATA (tem
));
841 printf ("Copyright (C) 2002 Free Software Foundation, Inc.\n");
842 printf ("GNU Emacs comes with ABSOLUTELY NO WARRANTY.\n");
843 printf ("You may redistribute copies of Emacs\n");
844 printf ("under the terms of the GNU General Public License.\n");
845 printf ("For more information about these matters, ");
846 printf ("see the file named COPYING.\n");
851 /* Map in shared memory, if we are using that. */
853 if (argmatch (argv
, argc
, "-nl", "--no-shared-memory", 6, NULL
, &skip_args
))
856 /* The shared memory was just restored, which clobbered this. */
862 /* The shared memory was just restored, which clobbered this. */
869 extern int malloc_cookie
;
870 /* This helps out unexnext.c. */
872 if (malloc_jumpstart (malloc_cookie
) != 0)
873 printf ("malloc jumpstart failed!\n");
878 /* Skip process serial number passed in the form -psn_x_y as
879 command-line argument. */
880 if (argc
> skip_args
+ 1 && strncmp (argv
[skip_args
+1], "-psn_", 5) == 0)
885 /* If -map specified, map the data file in. */
888 if (argmatch (argv
, argc
, "-map", "--map-data", 3, &mapin_file
, &skip_args
))
892 #ifdef LINK_CRTL_SHARE
893 #ifdef SHARABLE_LIB_BUG
894 /* Bletcherous shared libraries! */
896 stdin
= fdopen (0, "r");
898 stdout
= fdopen (1, "w");
900 stderr
= fdopen (2, "w");
903 #endif /* SHARABLE_LIB_BUG */
904 #endif /* LINK_CRTL_SHARE */
907 #if defined (HAVE_SETRLIMIT) && defined (RLIMIT_STACK)
908 /* Extend the stack space available.
909 Don't do that if dumping, since some systems (e.g. DJGPP)
910 might define a smaller stack limit at that time. */
913 && (!noninteractive
|| initialized
)
915 && !getrlimit (RLIMIT_STACK
, &rlim
))
918 extern int re_max_failures
;
919 /* Approximate the amount regex.c needs per unit of re_max_failures. */
920 int ratio
= 20 * sizeof (char *);
921 /* Then add 33% to cover the size of the smaller stacks that regex.c
922 successively allocates and discards, on its way to the maximum. */
924 /* Add in some extra to cover
925 what we're likely to use for other reasons. */
926 newlim
= re_max_failures
* ratio
+ 200000;
928 /* NetBSD (at least NetBSD 1.2G and former) has a bug in its
929 stack allocation routine for new process that the allocation
930 fails if stack limit is not on page boundary. So, round up the
931 new limit to page boundary. */
932 newlim
= (newlim
+ getpagesize () - 1) / getpagesize () * getpagesize();
934 if (newlim
> rlim
.rlim_max
)
936 newlim
= rlim
.rlim_max
;
937 /* Don't let regex.c overflow the stack we have. */
938 re_max_failures
= (newlim
- 200000) / ratio
;
940 if (rlim
.rlim_cur
< newlim
)
941 rlim
.rlim_cur
= newlim
;
943 setrlimit (RLIMIT_STACK
, &rlim
);
945 #endif /* HAVE_SETRLIMIT and RLIMIT_STACK */
947 /* Record (approximately) where the stack begins. */
948 stack_bottom
= &stack_bottom_variable
;
950 #ifdef USG_SHARED_LIBRARIES
952 brk ((void *)bss_end
);
957 #ifndef SYSTEM_MALLOC
958 /* Arrange to get warning messages as memory fills up. */
959 memory_warnings (0, malloc_warning
);
961 /* Call malloc at least once, to run the initial __malloc_hook.
962 Also call realloc and free for consistency. */
963 free (realloc (malloc (4), 4));
965 /* Arrange to disable interrupt input inside malloc etc. */
966 uninterrupt_malloc ();
967 #endif /* not SYSTEM_MALLOC */
969 #if defined (MSDOS) || defined (WINDOWSNT)
970 /* We do all file input/output as binary files. When we need to translate
971 newlines, we do that manually. */
973 #endif /* MSDOS || WINDOWSNT */
977 if (!isatty (fileno (stdin
)))
978 setmode (fileno (stdin
), O_BINARY
);
979 if (!isatty (fileno (stdout
)))
982 setmode (fileno (stdout
), O_BINARY
);
984 #else /* not __DJGPP__ >= 2 */
985 (stdin
)->_flag
&= ~_IOTEXT
;
986 (stdout
)->_flag
&= ~_IOTEXT
;
987 (stderr
)->_flag
&= ~_IOTEXT
;
988 #endif /* not __DJGPP__ >= 2 */
991 #ifdef SET_EMACS_PRIORITY
993 nice (emacs_priority
);
995 #endif /* SET_EMACS_PRIORITY */
997 /* Skip initial setlocale if LC_ALL is "C", as it's not needed in that case.
998 The build procedure uses this while dumping, to ensure that the
999 dumped Emacs does not have its system locale tables initialized,
1000 as that might cause screwups when the dumped Emacs starts up. */
1002 char *lc_all
= getenv ("LC_ALL");
1003 do_initial_setlocale
= ! lc_all
|| strcmp (lc_all
, "C");
1006 /* Set locale now, so that initial error messages are localized properly.
1007 fixup_locale must wait until later, since it builds strings. */
1008 if (do_initial_setlocale
)
1009 setlocale (LC_ALL
, "");
1011 #ifdef EXTRA_INITIALIZE
1015 inhibit_window_system
= 0;
1017 /* Handle the -t switch, which specifies filename to use as terminal. */
1021 if (argmatch (argv
, argc
, "-t", "--terminal", 4, &term
, &skip_args
))
1026 result
= emacs_open (term
, O_RDWR
, 0);
1029 char *errstring
= strerror (errno
);
1030 fprintf (stderr
, "%s: %s: %s\n", argv
[0], term
, errstring
);
1036 fprintf (stderr
, "%s: %s: not a tty\n", argv
[0], term
);
1039 fprintf (stderr
, "Using %s\n", term
);
1040 #ifdef HAVE_WINDOW_SYSTEM
1041 inhibit_window_system
= 1; /* -t => -nw */
1048 /* Command line option --no-windows is deprecated and thus not mentioned
1049 in the manual and usage informations. */
1050 if (argmatch (argv
, argc
, "-nw", "--no-window-system", 6, NULL
, &skip_args
)
1051 || argmatch (argv
, argc
, "-nw", "--no-windows", 6, NULL
, &skip_args
))
1052 inhibit_window_system
= 1;
1054 /* Handle the -batch switch, which means don't do interactive display. */
1056 if (argmatch (argv
, argc
, "-batch", "--batch", 5, NULL
, &skip_args
))
1058 if (argmatch (argv
, argc
, "-script", "--script", 3, &junk
, &skip_args
))
1060 noninteractive
= 1; /* Set batch mode. */
1061 /* Convert --script to -l, un-skip it, and sort again so that -l will be
1062 handled in proper sequence. */
1063 argv
[skip_args
- 1] = "-l";
1065 sort_args (argc
, argv
);
1068 /* Handle the --help option, which gives a usage message. */
1069 if (argmatch (argv
, argc
, "-help", "--help", 3, NULL
, &skip_args
))
1071 printf (USAGE1
, argv
[0], USAGE2
);
1073 printf (USAGE4
, bug_reporting_address ());
1077 if (! noninteractive
)
1082 inherited_pgroup
= EMACS_GETPGRP (0);
1083 setpgrp (0, getpid ());
1086 #if defined (USG5) && defined (INTERRUPT_INPUT)
1094 /* Don't catch SIGHUP if dumping. */
1101 sigblock (sigmask (SIGHUP
));
1102 /* In --batch mode, don't catch SIGHUP if already ignored.
1103 That makes nohup work. */
1104 if (! noninteractive
1105 || signal (SIGHUP
, SIG_IGN
) != SIG_IGN
)
1106 signal (SIGHUP
, fatal_error_signal
);
1107 sigunblock (sigmask (SIGHUP
));
1112 ! noninteractive
|| initialized
1118 /* Don't catch these signals in batch mode if dumping.
1119 On some machines, this sets static data that would make
1120 signal fail to work right when the dumped Emacs is run. */
1121 signal (SIGQUIT
, fatal_error_signal
);
1122 signal (SIGILL
, fatal_error_signal
);
1123 signal (SIGTRAP
, fatal_error_signal
);
1125 signal (SIGUSR1
, handle_USR1_signal
);
1127 signal (SIGUSR2
, handle_USR2_signal
);
1131 signal (SIGABRT
, fatal_error_signal
);
1134 signal (SIGHWE
, fatal_error_signal
);
1137 signal (SIGPRE
, fatal_error_signal
);
1140 signal (SIGORE
, fatal_error_signal
);
1143 signal (SIGUME
, fatal_error_signal
);
1146 signal (SIGDLK
, fatal_error_signal
);
1149 signal (SIGCPULIM
, fatal_error_signal
);
1152 /* This is missing on some systems - OS/2, for example. */
1153 signal (SIGIOT
, fatal_error_signal
);
1156 signal (SIGEMT
, fatal_error_signal
);
1158 signal (SIGFPE
, fatal_error_signal
);
1160 signal (SIGBUS
, fatal_error_signal
);
1162 signal (SIGSEGV
, fatal_error_signal
);
1164 signal (SIGSYS
, fatal_error_signal
);
1166 signal (SIGTERM
, fatal_error_signal
);
1168 signal (SIGXCPU
, fatal_error_signal
);
1171 signal (SIGXFSZ
, fatal_error_signal
);
1172 #endif /* SIGXFSZ */
1175 /* This just means available memory is getting low. */
1176 signal (SIGDANGER
, memory_warning_signal
);
1180 /* 20 is SIGCHLD, 21 is SIGTTIN, 22 is SIGTTOU. */
1181 signal (SIGXCPU
, fatal_error_signal
);
1183 signal (SIGIOINT
, fatal_error_signal
);
1185 signal (SIGGRANT
, fatal_error_signal
);
1186 signal (SIGRETRACT
, fatal_error_signal
);
1187 signal (SIGSOUND
, fatal_error_signal
);
1188 signal (SIGMSG
, fatal_error_signal
);
1192 noninteractive1
= noninteractive
;
1194 /* Perform basic initializations (not merely interning symbols). */
1201 init_charset_once ();
1202 init_coding_once ();
1203 init_syntax_once (); /* Create standard syntax table. */
1204 init_category_once (); /* Create standard category table. */
1205 /* Must be done before init_buffer. */
1206 init_casetab_once ();
1207 init_buffer_once (); /* Create buffer table and some buffers. */
1208 init_minibuf_once (); /* Create list of minibuffers. */
1209 /* Must precede init_window_once. */
1211 /* Call syms_of_xfaces before init_window_once because that
1212 function creates Vterminal_frame. Termcap frames now use
1213 faces, and the face implementation uses some symbols as
1216 /* Call syms_of_keyboard before init_window_once because
1217 keyboard sets up symbols that include some face names that
1218 the X support will want to use. This can happen when
1219 CANNOT_DUMP is defined. */
1220 syms_of_keyboard ();
1223 /* init_window_once calls make_terminal_frame which on Mac OS
1224 creates a full-fledge output_mac type frame. This does not
1225 work correctly before syms_of_textprop, syms_of_macfns,
1226 syms_of_ccl, syms_of_fontset, syms_of_xterm, syms_of_search,
1227 syms_of_frame, mac_initialize, and init_keyboard have already
1229 syms_of_textprop ();
1243 init_window_once (); /* Init the window system. */
1244 init_fileio_once (); /* Must precede any path manipulation. */
1245 #ifdef HAVE_WINDOW_SYSTEM
1246 init_fringe_once (); /* Swap bitmaps if necessary. */
1247 #endif /* HAVE_WINDOW_SYSTEM */
1252 if (do_initial_setlocale
)
1255 Vsystem_messages_locale
= Vprevious_system_messages_locale
;
1256 Vsystem_time_locale
= Vprevious_system_time_locale
;
1261 #ifdef CLASH_DETECTION
1265 running_asynch_code
= 0;
1267 /* Handle --unibyte and the EMACS_UNIBYTE envvar,
1268 but not while dumping. */
1271 int inhibit_unibyte
= 0;
1273 /* --multibyte overrides EMACS_UNIBYTE. */
1274 if (argmatch (argv
, argc
, "-no-unibyte", "--no-unibyte", 4, NULL
, &skip_args
)
1275 || argmatch (argv
, argc
, "-multibyte", "--multibyte", 4, NULL
, &skip_args
)
1276 /* Ignore EMACS_UNIBYTE before dumping. */
1277 || (!initialized
&& noninteractive
))
1278 inhibit_unibyte
= 1;
1280 /* --unibyte requests that we set up to do everything with single-byte
1281 buffers and strings. We need to handle this before calling
1282 init_lread, init_editfns and other places that generate Lisp strings
1283 from text in the environment. */
1284 /* Actually this shouldn't be needed as of 20.4 in a generally
1285 unibyte environment. As handa says, environment values
1286 aren't now decoded; also existing buffers are now made
1287 unibyte during startup if .emacs sets unibyte. Tested with
1288 8-bit data in environment variables and /etc/passwd, setting
1289 unibyte and Latin-1 in .emacs. -- Dave Love */
1290 if (argmatch (argv
, argc
, "-unibyte", "--unibyte", 4, NULL
, &skip_args
)
1291 || argmatch (argv
, argc
, "-no-multibyte", "--no-multibyte", 4, NULL
, &skip_args
)
1292 || (getenv ("EMACS_UNIBYTE") && !inhibit_unibyte
))
1294 Lisp_Object old_log_max
;
1295 Lisp_Object symbol
, tail
;
1297 symbol
= intern ("default-enable-multibyte-characters");
1298 Fset (symbol
, Qnil
);
1302 /* Erase pre-dump messages in *Messages* now so no abort. */
1303 old_log_max
= Vmessage_log_max
;
1304 XSETFASTINT (Vmessage_log_max
, 0);
1305 message_dolog ("", 0, 1, 0);
1306 Vmessage_log_max
= old_log_max
;
1309 for (tail
= Vbuffer_alist
; CONSP (tail
);
1314 buffer
= Fcdr (XCAR (tail
));
1315 /* Verify that all buffers are empty now, as they
1317 if (BUF_Z (XBUFFER (buffer
)) > BUF_BEG (XBUFFER (buffer
)))
1319 /* It is safe to do this crudely in an empty buffer. */
1320 XBUFFER (buffer
)->enable_multibyte_characters
= Qnil
;
1326 = argmatch (argv
, argc
, "-nl", "--no-loadup", 6, NULL
, &skip_args
);
1329 #ifdef HAVE_X_WINDOWS
1330 /* Stupid kludge to catch command-line display spec. We can't
1331 handle this argument entirely in window system dependent code
1332 because we don't even know which window system dependent code
1333 to run until we've recognized this argument. */
1335 char *displayname
= 0;
1336 int count_before
= skip_args
;
1338 /* Skip any number of -d options, but only use the last one. */
1341 int count_before_this
= skip_args
;
1343 if (argmatch (argv
, argc
, "-d", "--display", 3, &displayname
, &skip_args
))
1345 else if (argmatch (argv
, argc
, "-display", 0, 3, &displayname
, &skip_args
))
1350 count_before
= count_before_this
;
1353 /* If we have the form --display=NAME,
1354 convert it into -d name.
1355 This requires inserting a new element into argv. */
1356 if (displayname
!= 0 && skip_args
- count_before
== 1)
1358 char **new = (char **) xmalloc (sizeof (char *) * (argc
+ 2));
1361 for (j
= 0; j
< count_before
+ 1; j
++)
1363 new[count_before
+ 1] = "-d";
1364 new[count_before
+ 2] = displayname
;
1365 for (j
= count_before
+ 2; j
<argc
; j
++)
1366 new[j
+ 1] = argv
[j
];
1370 /* Change --display to -d, when its arg is separate. */
1371 else if (displayname
!= 0 && skip_args
> count_before
1372 && argv
[count_before
+ 1][1] == '-')
1373 argv
[count_before
+ 1] = "-d";
1375 /* Don't actually discard this arg. */
1376 skip_args
= count_before
;
1380 /* argmatch must not be used after here,
1381 except when bulding temacs
1382 because the -d argument has not been skipped in skip_args. */
1385 /* Call early 'cause init_environment needs it. */
1387 /* Set defaults for several environment variables. */
1389 init_environment (argc
, argv
, skip_args
);
1396 /* Initialize environment from registry settings. */
1397 init_environment (argv
);
1398 init_ntproc (); /* must precede init_editfns. */
1403 init_mac_osx_environment ();
1406 /* egetenv is a pretty low-level facility, which may get called in
1407 many circumstances; it seems flimsy to put off initializing it
1408 until calling init_callproc. */
1409 set_process_environment ();
1410 /* AIX crashes are reported in system versions 3.2.3 and 3.2.4
1411 if this is not done. Do it after set_process_environment so that we
1412 don't pollute Vprocess_environment. */
1413 /* Setting LANG here will defeat the startup locale processing... */
1418 init_buffer (); /* Init default directory of main buffer. */
1420 init_callproc_1 (); /* Must precede init_cmdargs and init_sys_modes. */
1421 init_cmdargs (argc
, argv
, skip_args
); /* Must precede init_lread. */
1425 /* Erase any pre-dump messages in the message log, to avoid confusion. */
1426 Lisp_Object old_log_max
;
1427 old_log_max
= Vmessage_log_max
;
1428 XSETFASTINT (Vmessage_log_max
, 0);
1429 message_dolog ("", 0, 1, 0);
1430 Vmessage_log_max
= old_log_max
;
1433 init_callproc (); /* Must follow init_cmdargs but not init_sys_modes. */
1436 /* Intern the names of all standard functions and variables;
1437 define standard keys. */
1441 /* The basic levels of Lisp must come first. */
1442 /* And data must come first of all
1443 for the sake of symbols like error-message. */
1445 /* Called before init_window_once for Mac OS Classic. */
1453 syms_of_floatfns ();
1457 syms_of_bytecode ();
1459 syms_of_casefiddle ();
1461 syms_of_callproc ();
1462 syms_of_category ();
1464 /* Called before init_window_once for Mac OS Classic. */
1469 #ifndef NO_DIR_LIBRARY
1471 #endif /* not NO_DIR_LIBRARY */
1477 syms_of_coding (); /* This should be after syms_of_fileio. */
1478 #ifdef CLASH_DETECTION
1479 syms_of_filelock ();
1480 #endif /* CLASH_DETECTION */
1489 /* Called before init_window_once for Mac OS Classic. */
1500 /* Called before init_window_once for Mac OS Classic. */
1501 syms_of_textprop ();
1503 syms_of_composite ();
1509 #endif /* WINDOWSNT */
1512 #ifdef HAVE_WINDOW_SYSTEM
1515 #endif /* HAVE_WINDOW_SYSTEM */
1516 #ifdef HAVE_X_WINDOWS
1526 #endif /* HAVE_X_WINDOWS */
1531 /* Called before init_window_once for Mac OS Classic. */
1540 syms_of_w32select ();
1543 #endif /* HAVE_NTGUI */
1550 #endif /* HAVE_CARBON */
1560 keys_of_casefiddle ();
1563 keys_of_keyboard ();
1571 Initialization that must be done even if the global variable
1572 initialized is non zero
1575 globals_of_w32fns ();
1576 globals_of_w32menu ();
1577 #endif /* end #ifdef HAVE_NTGUI */
1580 if (!noninteractive
)
1583 init_vms_input ();/* init_display calls get_frame_size, that needs this. */
1585 init_display (); /* Determine terminal type. init_sys_modes uses results. */
1588 /* Called before init_window_once for Mac OS Classic. */
1589 init_keyboard (); /* This too must precede init_sys_modes. */
1592 init_vmsproc (); /* And this too. */
1594 init_sys_modes (); /* Init system terminal modes (RAW or CBREAK, etc.). */
1597 #ifdef HAVE_WINDOW_SYSTEM
1600 #endif /* HAVE_WINDOW_SYSTEM */
1616 /* Handle -l loadup, args passed by Makefile. */
1617 if (argmatch (argv
, argc
, "-l", "--load", 3, &file
, &skip_args
))
1618 Vtop_level
= Fcons (intern ("load"),
1619 Fcons (build_string (file
), Qnil
));
1620 /* Unless next switch is -nl, load "loadup.el" first thing. */
1622 Vtop_level
= Fcons (intern ("load"),
1623 Fcons (build_string ("loadup.el"), Qnil
));
1630 /* If the execution TZ happens to be the same as the dump TZ,
1631 change it to some other value and then change it back,
1632 to force the underlying implementation to reload the TZ info.
1633 This is needed on implementations that load TZ info from files,
1634 since the TZ file contents may differ between dump and execution. */
1635 char *tz
= getenv ("TZ");
1636 if (tz
&& !strcmp (tz
, dump_tz
))
1646 /* Set up for profiling. This is known to work on FreeBSD and
1647 GNU/Linux. It might work on some other systems too. Give it a
1648 try and tell us if it works on your system. To compile for
1649 profiling use something like `make CFLAGS="-pg -g -O -DPROFILING=1'. */
1650 #if defined (__FreeBSD__) || defined (__linux)
1654 extern void _mcleanup ();
1656 extern void safe_bcopy ();
1657 extern void dump_opcode_frequencies ();
1660 /* This uses safe_bcopy because that function comes first in the
1661 Emacs executable. It might be better to use something that
1662 gives the start of the text segment, but start_of_text is not
1663 defined on all systems now. */
1664 monstartup (safe_bcopy
, &etext
);
1673 #ifdef LOCALTIME_CACHE
1674 /* Some versions of localtime have a bug. They cache the value of the time
1675 zone rather than looking it up every time. Since localtime() is
1676 called to bolt the undumping time into the undumped emacs, this
1677 results in localtime ignoring the TZ environment variable.
1678 This flushes the new TZ value into localtime. */
1680 #endif /* defined (LOCALTIME_CACHE) */
1682 /* Enter editor command loop. This never returns. */
1688 /* Sort the args so we can find the most important ones
1689 at the beginning of argv. */
1691 /* First, here's a table of all the standard options. */
1693 struct standard_args
1701 struct standard_args standard_args
[] =
1703 { "-version", "--version", 150, 0 },
1705 { "-nl", "--no-shared-memory", 140, 0 },
1708 { "-map", "--map-data", 130, 0 },
1710 { "-t", "--terminal", 120, 1 },
1711 { "-nw", "--no-window-system", 110, 0 },
1712 { "-nw", "--no-windows", 110, 0 },
1713 { "-batch", "--batch", 100, 0 },
1714 { "-script", "--script", 100, 1 },
1715 { "-help", "--help", 90, 0 },
1716 { "-no-unibyte", "--no-unibyte", 83, 0 },
1717 { "-multibyte", "--multibyte", 82, 0 },
1718 { "-unibyte", "--unibyte", 81, 0 },
1719 { "-no-multibyte", "--no-multibyte", 80, 0 },
1720 { "-nl", "--no-loadup", 70, 0 },
1721 /* -d must come last before the options handled in startup.el. */
1722 { "-d", "--display", 60, 1 },
1723 { "-display", 0, 60, 1 },
1724 /* Now for the options handled in startup.el. */
1725 { "-q", "--no-init-file", 50, 0 },
1726 { "-no-init-file", 0, 50, 0 },
1727 { "-no-site-file", "--no-site-file", 40, 0 },
1728 { "-no-splash", "--no-splash", 40, 0 },
1729 { "-u", "--user", 30, 1 },
1730 { "-user", 0, 30, 1 },
1731 { "-debug-init", "--debug-init", 20, 0 },
1732 { "-i", "--icon-type", 15, 0 },
1733 { "-itype", 0, 15, 0 },
1734 { "-iconic", "--iconic", 15, 0 },
1735 { "-bg", "--background-color", 10, 1 },
1736 { "-background", 0, 10, 1 },
1737 { "-fg", "--foreground-color", 10, 1 },
1738 { "-foreground", 0, 10, 1 },
1739 { "-bd", "--border-color", 10, 1 },
1740 { "-bw", "--border-width", 10, 1 },
1741 { "-ib", "--internal-border", 10, 1 },
1742 { "-ms", "--mouse-color", 10, 1 },
1743 { "-cr", "--cursor-color", 10, 1 },
1744 { "-fn", "--font", 10, 1 },
1745 { "-font", 0, 10, 1 },
1746 { "-fs", "--fullscreen", 10, 0 },
1747 { "-fw", "--fullwidth", 10, 0 },
1748 { "-fh", "--fullheight", 10, 0 },
1749 { "-g", "--geometry", 10, 1 },
1750 { "-geometry", 0, 10, 1 },
1751 { "-T", "--title", 10, 1 },
1752 { "-title", 0, 10, 1 },
1753 { "-name", "--name", 10, 1 },
1754 { "-xrm", "--xrm", 10, 1 },
1755 { "-r", "--reverse-video", 5, 0 },
1757 { "-reverse", 0, 5, 0 },
1758 { "-hb", "--horizontal-scroll-bars", 5, 0 },
1759 { "-vb", "--vertical-scroll-bars", 5, 0 },
1760 { "-color", "--color", 5, 0},
1761 /* These have the same priority as ordinary file name args,
1762 so they are not reordered with respect to those. */
1763 { "-L", "--directory", 0, 1 },
1764 { "-directory", 0, 0, 1 },
1765 { "-l", "--load", 0, 1 },
1766 { "-load", 0, 0, 1 },
1767 { "-f", "--funcall", 0, 1 },
1768 { "-funcall", 0, 0, 1 },
1769 { "-eval", "--eval", 0, 1 },
1770 { "-execute", "--execute", 0, 1 },
1771 { "-find-file", "--find-file", 0, 1 },
1772 { "-visit", "--visit", 0, 1 },
1773 { "-file", "--file", 0, 1 },
1774 { "-insert", "--insert", 0, 1 },
1775 /* This should be processed after ordinary file name args and the like. */
1776 { "-kill", "--kill", -10, 0 },
1779 /* Reorder the elements of ARGV (assumed to have ARGC elements)
1780 so that the highest priority ones come first.
1781 Do not change the order of elements of equal priority.
1782 If an option takes an argument, keep it and its argument together.
1784 If an option that takes no argument appears more
1785 than once, eliminate all but one copy of it. */
1788 sort_args (argc
, argv
)
1792 char **new = (char **) xmalloc (sizeof (char *) * argc
);
1793 /* For each element of argv,
1794 the corresponding element of options is:
1795 0 for an option that takes no arguments,
1796 1 for an option that takes one argument, etc.
1797 -1 for an ordinary non-option argument. */
1798 int *options
= (int *) xmalloc (sizeof (int) * argc
);
1799 int *priority
= (int *) xmalloc (sizeof (int) * argc
);
1801 int incoming_used
= 1;
1805 /* Categorize all the options,
1806 and figure out which argv elts are option arguments. */
1807 for (from
= 1; from
< argc
; from
++)
1811 if (argv
[from
][0] == '-')
1816 /* If we have found "--", don't consider
1817 any more arguments as options. */
1818 if (argv
[from
][1] == '-' && argv
[from
][2] == 0)
1820 /* Leave the "--", and everything following it, at the end. */
1821 for (; from
< argc
; from
++)
1823 priority
[from
] = -100;
1829 /* Look for a match with a known old-fashioned option. */
1830 for (i
= 0; i
< sizeof (standard_args
) / sizeof (standard_args
[0]); i
++)
1831 if (!strcmp (argv
[from
], standard_args
[i
].name
))
1833 options
[from
] = standard_args
[i
].nargs
;
1834 priority
[from
] = standard_args
[i
].priority
;
1835 if (from
+ standard_args
[i
].nargs
>= argc
)
1836 fatal ("Option `%s' requires an argument\n", argv
[from
]);
1837 from
+= standard_args
[i
].nargs
;
1841 /* Look for a match with a known long option.
1842 MATCH is -1 if no match so far, -2 if two or more matches so far,
1843 >= 0 (the table index of the match) if just one match so far. */
1844 if (argv
[from
][1] == '-')
1847 thislen
= strlen (argv
[from
]);
1848 equals
= index (argv
[from
], '=');
1850 thislen
= equals
- argv
[from
];
1853 i
< sizeof (standard_args
) / sizeof (standard_args
[0]); i
++)
1854 if (standard_args
[i
].longname
1855 && !strncmp (argv
[from
], standard_args
[i
].longname
,
1864 /* If we found exactly one match, use that. */
1867 options
[from
] = standard_args
[match
].nargs
;
1868 priority
[from
] = standard_args
[match
].priority
;
1869 /* If --OPTION=VALUE syntax is used,
1870 this option uses just one argv element. */
1873 if (from
+ options
[from
] >= argc
)
1874 fatal ("Option `%s' requires an argument\n", argv
[from
]);
1875 from
+= options
[from
];
1882 /* Copy the arguments, in order of decreasing priority, to NEW. */
1884 while (incoming_used
< argc
)
1887 int best_priority
= -9999;
1889 /* Find the highest priority remaining option.
1890 If several have equal priority, take the first of them. */
1891 for (from
= 1; from
< argc
; from
++)
1893 if (argv
[from
] != 0 && priority
[from
] > best_priority
)
1895 best_priority
= priority
[from
];
1898 /* Skip option arguments--they are tied to the options. */
1899 if (options
[from
] > 0)
1900 from
+= options
[from
];
1906 /* Copy the highest priority remaining option, with its args, to NEW.
1907 Unless it is a duplicate of the previous one. */
1908 if (! (options
[best
] == 0
1909 && ! strcmp (new[to
- 1], argv
[best
])))
1911 new[to
++] = argv
[best
];
1912 for (i
= 0; i
< options
[best
]; i
++)
1913 new[to
++] = argv
[best
+ i
+ 1];
1916 incoming_used
+= 1 + (options
[best
] > 0 ? options
[best
] : 0);
1918 /* Clear out this option in ARGV. */
1920 for (i
= 0; i
< options
[best
]; i
++)
1921 argv
[best
+ i
+ 1] = 0;
1924 /* If duplicate options were deleted, fill up extra space with null ptrs. */
1928 bcopy (new, argv
, sizeof (char *) * argc
);
1935 DEFUN ("kill-emacs", Fkill_emacs
, Skill_emacs
, 0, 1, "P",
1936 doc
: /* Exit the Emacs job and kill it.
1937 If ARG is an integer, return ARG as the exit program code.
1938 If ARG is a string, stuff it as keyboard input.
1940 The value of `kill-emacs-hook', if not void,
1941 is a list of functions (of no args),
1942 all of which are called before Emacs is actually killed. */)
1946 struct gcpro gcpro1
;
1953 if (!NILP (Vrun_hooks
) && !noninteractive
)
1954 call1 (Vrun_hooks
, intern ("kill-emacs-hook"));
1958 /* Is it really necessary to do this deassign
1959 when we are going to exit anyway? */
1964 shut_down_emacs (0, 0, STRINGP (arg
) ? arg
: Qnil
);
1966 /* If we have an auto-save list file,
1967 kill it because we are exiting Emacs deliberately (not crashing).
1968 Do it after shut_down_emacs, which does an auto-save. */
1969 if (STRINGP (Vauto_save_list_file_name
))
1970 unlink (SDATA (Vauto_save_list_file_name
));
1972 exit (INTEGERP (arg
) ? XINT (arg
)
1983 /* Perform an orderly shutdown of Emacs. Autosave any modified
1984 buffers, kill any child processes, clean up the terminal modes (if
1985 we're in the foreground), and other stuff like that. Don't perform
1986 any redisplay; this may be called when Emacs is shutting down in
1987 the background, or after its X connection has died.
1989 If SIG is a signal number, print a message for it.
1991 This is called by fatal signal handlers, X protocol error handlers,
1995 shut_down_emacs (sig
, no_x
, stuff
)
1999 /* Prevent running of hooks from now on. */
2002 /* If we are controlling the terminal, reset terminal modes. */
2003 #ifdef EMACS_HAVE_TTY_PGRP
2005 int pgrp
= EMACS_GETPGRP (0);
2008 if (EMACS_GET_TTY_PGRP (0, &tpgrp
) != -1
2013 if (sig
&& sig
!= SIGTERM
)
2014 fprintf (stderr
, "Fatal error (%d)", sig
);
2022 stuff_buffered_input (stuff
);
2024 kill_buffer_processes (Qnil
);
2025 Fdo_auto_save (Qt
, Qnil
);
2027 #ifdef CLASH_DETECTION
2028 unlock_all_files ();
2032 kill_vms_processes ();
2035 #if 0 /* This triggers a bug in XCloseDisplay and is not needed. */
2036 #ifdef HAVE_X_WINDOWS
2037 /* It's not safe to call intern here. Maybe we are crashing. */
2038 if (!noninteractive
&& SYMBOLP (Vwindow_system
)
2039 && SCHARS (SYMBOL_NAME (Vwindow_system
)) == 1
2040 && SREF (SYMBOL_NAME (Vwindow_system
), 0) == 'x'
2042 Fx_close_current_connection ();
2043 #endif /* HAVE_X_WINDOWS */
2047 /* There is a tendency for a SIGIO signal to arrive within exit,
2048 and cause a SIGHUP because the input descriptor is already closed. */
2050 signal (SIGIO
, SIG_IGN
);
2057 /* Do this only if terminating normally, we want glyph matrices
2058 etc. in a core dump. */
2059 if (sig
== 0 || sig
== SIGTERM
)
2061 check_glyph_memory ();
2062 check_message_stack ();
2076 DEFUN ("dump-emacs-data", Fdump_emacs_data
, Sdump_emacs_data
, 1, 1, 0,
2077 doc
: /* Dump current state of Emacs into data file FILENAME.
2078 This function exists on systems that use HAVE_SHM. */)
2080 Lisp_Object filename
;
2082 extern char my_edata
[];
2086 CHECK_STRING (filename
);
2087 filename
= Fexpand_file_name (filename
, Qnil
);
2090 Vpurify_flag
= Qnil
;
2093 /* Tell malloc where start of impure now is. */
2094 /* Also arrange for warnings when nearly out of space. */
2095 #ifndef SYSTEM_MALLOC
2096 memory_warnings (my_edata
, malloc_warning
);
2098 map_out_data (SDATA (filename
));
2105 #else /* not HAVE_SHM */
2107 DEFUN ("dump-emacs", Fdump_emacs
, Sdump_emacs
, 2, 2, 0,
2108 doc
: /* Dump current state of Emacs into executable file FILENAME.
2109 Take symbols from SYMFILE (presumably the file you executed to run Emacs).
2110 This is used in the file `loadup.el' when building Emacs.
2112 You must run Emacs in batch mode in order to dump it. */)
2114 Lisp_Object filename
, symfile
;
2116 extern char my_edata
[];
2119 int count
= SPECPDL_INDEX ();
2123 if (! noninteractive
)
2124 error ("Dumping Emacs works only in batch mode");
2126 /* Bind `command-line-processed' to nil before dumping,
2127 so that the dumped Emacs will process its command line
2128 and set up to work with X windows if appropriate. */
2129 symbol
= intern ("command-line-processed");
2130 specbind (symbol
, Qnil
);
2132 CHECK_STRING (filename
);
2133 filename
= Fexpand_file_name (filename
, Qnil
);
2134 if (!NILP (symfile
))
2136 CHECK_STRING (symfile
);
2137 if (SCHARS (symfile
))
2138 symfile
= Fexpand_file_name (symfile
, Qnil
);
2142 Vpurify_flag
= Qnil
;
2145 set_time_zone_rule (dump_tz
);
2146 #ifndef LOCALTIME_CACHE
2147 /* Force a tz reload, since set_time_zone_rule doesn't. */
2154 mapout_data (SDATA (filename
));
2156 /* Tell malloc where start of impure now is. */
2157 /* Also arrange for warnings when nearly out of space. */
2158 #ifndef SYSTEM_MALLOC
2160 /* On Windows, this was done before dumping, and that once suffices.
2161 Meanwhile, my_edata is not valid on Windows. */
2162 memory_warnings (my_edata
, malloc_warning
);
2163 #endif /* not WINDOWSNT */
2165 #ifdef DOUG_LEA_MALLOC
2166 malloc_state_ptr
= malloc_get_state ();
2169 #ifdef USE_MMAP_FOR_BUFFERS
2172 unexec (SDATA (filename
),
2173 !NILP (symfile
) ? SDATA (symfile
) : 0, my_edata
, 0, 0);
2174 #ifdef USE_MMAP_FOR_BUFFERS
2177 #ifdef DOUG_LEA_MALLOC
2178 free (malloc_state_ptr
);
2180 #endif /* not VMS */
2184 return unbind_to (count
, Qnil
);
2187 #endif /* not HAVE_SHM */
2189 #endif /* not CANNOT_DUMP */
2192 /* Recover from setlocale (LC_ALL, ""). */
2196 /* The Emacs Lisp reader needs LC_NUMERIC to be "C",
2197 so that numbers are read and printed properly for Emacs Lisp. */
2198 setlocale (LC_NUMERIC
, "C");
2201 /* Set system locale CATEGORY, with previous locale *PLOCALE, to
2204 synchronize_locale (category
, plocale
, desired_locale
)
2206 Lisp_Object
*plocale
;
2207 Lisp_Object desired_locale
;
2209 if (! EQ (*plocale
, desired_locale
))
2211 *plocale
= desired_locale
;
2212 setlocale (category
, (STRINGP (desired_locale
)
2213 ? (char *)(SDATA (desired_locale
))
2218 /* Set system time locale to match Vsystem_time_locale, if possible. */
2220 synchronize_system_time_locale ()
2222 synchronize_locale (LC_TIME
, &Vprevious_system_time_locale
,
2223 Vsystem_time_locale
);
2226 /* Set system messages locale to match Vsystem_messages_locale, if
2229 synchronize_system_messages_locale ()
2232 synchronize_locale (LC_MESSAGES
, &Vprevious_system_messages_locale
,
2233 Vsystem_messages_locale
);
2236 #endif /* HAVE_SETLOCALE */
2243 decode_env_path (evarname
, defalt
)
2244 char *evarname
, *defalt
;
2246 register char *path
, *p
;
2247 Lisp_Object lpath
, element
, tem
;
2249 /* It's okay to use getenv here, because this function is only used
2250 to initialize variables when Emacs starts up, and isn't called
2253 path
= (char *) getenv (evarname
);
2259 /* Ensure values from the environment use the proper directory separator. */
2262 p
= alloca (strlen (path
) + 1);
2266 if ('/' == DIRECTORY_SEP
)
2267 dostounix_filename (path
);
2269 unixtodos_filename (path
);
2275 p
= index (path
, SEPCHAR
);
2276 if (!p
) p
= path
+ strlen (path
);
2277 element
= (p
- path
? make_string (path
, p
- path
)
2278 : build_string ("."));
2280 /* Add /: to the front of the name
2281 if it would otherwise be treated as magic. */
2282 tem
= Ffind_file_name_handler (element
, Qt
);
2284 /* However, if the handler says "I'm safe",
2285 don't bother adding /:. */
2289 prop
= Fget (tem
, intern ("safe-magic"));
2295 element
= concat2 (build_string ("/:"), element
);
2297 lpath
= Fcons (element
, lpath
);
2303 return Fnreverse (lpath
);
2309 Qfile_name_handler_alist
= intern ("file-name-handler-alist");
2310 staticpro (&Qfile_name_handler_alist
);
2314 defsubr (&Sdump_emacs_data
);
2316 defsubr (&Sdump_emacs
);
2320 defsubr (&Skill_emacs
);
2322 defsubr (&Sinvocation_name
);
2323 defsubr (&Sinvocation_directory
);
2325 DEFVAR_LISP ("command-line-args", &Vcommand_line_args
,
2326 doc
: /* Args passed by shell to Emacs, as a list of strings.
2327 Many arguments are deleted from the list as they are processed. */);
2329 DEFVAR_LISP ("system-type", &Vsystem_type
,
2330 doc
: /* Value is symbol indicating type of operating system you are using. */);
2331 Vsystem_type
= intern (SYSTEM_TYPE
);
2333 DEFVAR_LISP ("system-configuration", &Vsystem_configuration
,
2334 doc
: /* Value is string indicating configuration Emacs was built for.
2335 On MS-Windows, the value reflects the OS flavor and version on which
2336 Emacs is running. */);
2337 Vsystem_configuration
= build_string (EMACS_CONFIGURATION
);
2339 DEFVAR_LISP ("system-configuration-options", &Vsystem_configuration_options
,
2340 doc
: /* String containing the configuration options Emacs was built with. */);
2341 Vsystem_configuration_options
= build_string (EMACS_CONFIG_OPTIONS
);
2343 DEFVAR_BOOL ("noninteractive", &noninteractive1
,
2344 doc
: /* Non-nil means Emacs is running without interactive terminal. */);
2346 DEFVAR_LISP ("kill-emacs-hook", &Vkill_emacs_hook
,
2347 doc
: /* Hook to be run when kill-emacs is called.
2348 Since `kill-emacs' may be invoked when the terminal is disconnected (or
2349 in other similar situations), functions placed on this hook should not
2350 expect to be able to interact with the user. To ask for confirmation,
2351 see `kill-emacs-query-functions' instead.
2353 The hook is not run in batch mode, i.e., if `noninteractive' is non-nil. */);
2354 Vkill_emacs_hook
= Qnil
;
2356 empty_string
= build_string ("");
2357 staticpro (&empty_string
);
2360 DEFVAR_LISP ("signal-USR1-hook", &Vsignal_USR1_hook
,
2361 doc
: /* Hook to be run whenever emacs receives a USR1 signal. */);
2362 Vsignal_USR1_hook
= Qnil
;
2364 DEFVAR_LISP ("signal-USR2-hook", &Vsignal_USR2_hook
,
2365 doc
: /* Hook to be run whenever emacs receives a USR2 signal. */);
2366 Vsignal_USR2_hook
= Qnil
;
2371 DEFVAR_INT ("emacs-priority", &emacs_priority
,
2372 doc
: /* Priority for Emacs to run at.
2373 This value is effective only if set before Emacs is dumped,
2374 and only if the Emacs executable is installed with setuid to permit
2375 it to change priority. (Emacs sets its uid back to the real uid.)
2376 Currently, you need to define SET_EMACS_PRIORITY in `config.h'
2377 before you compile Emacs, to enable the code for this feature. */);
2380 DEFVAR_LISP ("path-separator", &Vpath_separator
,
2381 doc
: /* The directory separator in search paths, as a string. */);
2384 Vpath_separator
= make_string (&c
, 1);
2387 DEFVAR_LISP ("invocation-name", &Vinvocation_name
,
2388 doc
: /* The program name that was used to run Emacs.
2389 Any directory names are omitted. */);
2391 DEFVAR_LISP ("invocation-directory", &Vinvocation_directory
,
2392 doc
: /* The directory in which the Emacs executable was found, to run it.
2393 The value is nil if that directory's name is not known. */);
2395 DEFVAR_LISP ("installation-directory", &Vinstallation_directory
,
2396 doc
: /* A directory within which to look for the `lib-src' and `etc' directories.
2397 This is non-nil when we can't find those directories in their standard
2398 installed locations, but we can find them
2399 near where the Emacs executable was found. */);
2400 Vinstallation_directory
= Qnil
;
2402 DEFVAR_LISP ("system-messages-locale", &Vsystem_messages_locale
,
2403 doc
: /* System locale for messages. */);
2404 Vsystem_messages_locale
= Qnil
;
2406 DEFVAR_LISP ("previous-system-messages-locale",
2407 &Vprevious_system_messages_locale
,
2408 doc
: /* Most recently used system locale for messages. */);
2409 Vprevious_system_messages_locale
= Qnil
;
2411 DEFVAR_LISP ("system-time-locale", &Vsystem_time_locale
,
2412 doc
: /* System locale for time. */);
2413 Vsystem_time_locale
= Qnil
;
2415 DEFVAR_LISP ("previous-system-time-locale", &Vprevious_system_time_locale
,
2416 doc
: /* Most recently used system locale for time. */);
2417 Vprevious_system_time_locale
= Qnil
;
2420 /* arch-tag: 7bfd356a-c720-4612-8ab6-aa4222931c2e
2421 (do not change this comment) */