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"
58 #include "termhooks.h"
68 #include <sys/resource.h>
76 #if !defined (USG) || defined (BSD_PGRPS)
78 #define setpgrp setpgid
82 extern void malloc_warning
P_ ((char *));
83 extern void set_time_zone_rule
P_ ((char *));
85 extern char *index
P_ ((const char *, int));
88 /* Make these values available in GDB, which doesn't see macros. */
96 int gdb_use_union
= 0;
98 int gdb_use_union
= 1;
100 EMACS_INT gdb_valbits
= VALBITS
;
101 EMACS_INT gdb_gctypebits
= GCTYPEBITS
;
103 EMACS_INT gdb_data_seg_bits
= DATA_SEG_BITS
;
105 EMACS_INT gdb_data_seg_bits
= 0;
107 EMACS_INT PVEC_FLAG
= PSEUDOVECTOR_FLAG
;
108 EMACS_INT gdb_array_mark_flag
= ARRAY_MARK_FLAG
;
110 /* Command line args from shell, as list of strings. */
111 Lisp_Object Vcommand_line_args
;
113 /* The name under which Emacs was invoked, with any leading directory
115 Lisp_Object Vinvocation_name
;
117 /* The directory name from which Emacs was invoked. */
118 Lisp_Object Vinvocation_directory
;
120 /* The directory name in which to find subdirs such as lisp and etc.
121 nil means get them only from PATH_LOADSEARCH. */
122 Lisp_Object Vinstallation_directory
;
124 /* Hook run by `kill-emacs' before it does really anything. */
125 Lisp_Object Vkill_emacs_hook
;
127 /* An empty lisp string. To avoid having to build any other. */
128 Lisp_Object empty_string
;
130 /* Search path separator. */
131 Lisp_Object Vpath_separator
;
133 /* Set nonzero after Emacs has started up the first time.
134 Prevents reinitialization of the Lisp world and keymaps
135 on subsequent starts. */
138 #ifdef DOUG_LEA_MALLOC
139 /* Preserves a pointer to the memory allocated that copies that
140 static data inside glibc's malloc. */
141 void *malloc_state_ptr
;
142 /* From glibc, a routine that returns a copy of the malloc internal state. */
143 extern void *malloc_get_state ();
144 /* From glibc, a routine that overwrites the malloc internal state. */
145 extern void malloc_set_state ();
146 /* Non-zero if the MALLOC_CHECK_ enviroment variable was set while
147 dumping. Used to work around a bug in glibc's malloc. */
148 int malloc_using_checking
;
151 /* Variable whose value is symbol giving operating system type. */
152 Lisp_Object Vsystem_type
;
154 /* Variable whose value is string giving configuration built for. */
155 Lisp_Object Vsystem_configuration
;
157 /* Variable whose value is string giving configuration options,
158 for use when reporting bugs. */
159 Lisp_Object Vsystem_configuration_options
;
161 Lisp_Object Qfile_name_handler_alist
;
163 /* Current and previous system locales for messages and time. */
164 Lisp_Object Vsystem_messages_locale
;
165 Lisp_Object Vprevious_system_messages_locale
;
166 Lisp_Object Vsystem_time_locale
;
167 Lisp_Object Vprevious_system_time_locale
;
169 /* If non-zero, emacs should not attempt to use a window-specific code,
170 but instead should use the virtual terminal under which it was started. */
171 int inhibit_window_system
;
173 /* If nonzero, set Emacs to run at this priority. This is also used
174 in child_setup and sys_suspend to make sure subshells run at normal
175 priority; those functions have their own extern declaration. */
176 EMACS_INT emacs_priority
;
178 /* If non-zero, a filter or a sentinel is running. Tested to save the match
179 data on the first attempt to change it inside asynchronous code. */
180 int running_asynch_code
;
184 extern int inherited_pgroup
;
187 #ifdef HAVE_X_WINDOWS
188 /* If non-zero, -d was specified, meaning we're using some window system. */
192 /* An address near the bottom of the stack.
193 Tells GC how to save a copy of the stack. */
196 #ifdef HAVE_WINDOW_SYSTEM
197 extern Lisp_Object Vinitial_window_system
;
198 #endif /* HAVE_WINDOW_SYSTEM */
200 extern Lisp_Object Vauto_save_list_file_name
;
202 extern Lisp_Object Vinhibit_redisplay
;
204 #ifdef USG_SHARED_LIBRARIES
205 /* If nonzero, this is the place to put the end of the writable segment
208 unsigned int bss_end
= 0;
211 /* Nonzero means running Emacs without interactive terminal. */
215 /* Value of Lisp variable `noninteractive'.
216 Normally same as C variable `noninteractive'
217 but nothing terrible happens if user sets this one. */
221 /* Save argv and argc. */
225 static void sort_args ();
226 void syms_of_emacs ();
228 /* MSVC needs each string be shorter than 2048 bytes, so the usage
229 strings below are split to not overflow this limit. */
231 Usage: %s [OPTION-OR-FILENAME]...\n\
233 Run Emacs, the extensible, customizable, self-documenting real-time\n\
234 display editor. The recommended way to start Emacs for normal editing\n\
235 is with no options at all.\n\
237 Run M-x info RET m emacs RET m command arguments RET inside Emacs to\n\
238 read the main documentation for these command-line arguments.\n\
240 Initialization options:\n\
242 --batch do not do interactive display; implies -q\n\
243 --debug-init enable Emacs Lisp debugger for init file\n\
244 --display, -d DISPLAY use X server DISPLAY\n\
245 --multibyte, --no-unibyte inhibit the effect of EMACS_UNIBYTE\n\
246 --no-desktop do not load a saved desktop\n\
247 --no-init-file, -q load neither ~/.emacs nor default.el\n\
248 --no-shared-memory, -nl do not use shared memory\n\
249 --no-site-file do not load site-start.el\n\
250 --no-splash do not display a splash screen on startup\n\
251 --no-window-system, -nw don't communicate with X, ignoring $DISPLAY\n\
252 --script FILE run FILE as an Emacs Lisp script\n\
253 --terminal, -t DEVICE use DEVICE for terminal I/O\n\
254 --unibyte, --no-multibyte run Emacs in unibyte mode\n\
255 --user, -u USER load ~USER/.emacs instead of your own\n\
261 FILE visit FILE using find-file\n\
262 +LINE FILE visit FILE using find-file, then go to line LINE\n\
263 +LINE:COLUMN FILE visit FILE using find-file, then go to line LINE,\n\
265 --directory, -L DIR add DIR to variable load-path\n\
266 --eval EXPR evaluate Emacs Lisp expression EXPR\n\
267 --execute EXPR evaluate Emacs Lisp expression EXPR\n\
268 --file FILE visit FILE using find-file\n\
269 --find-file FILE visit FILE using find-file\n\
270 --funcall, -f FUNC call Emacs Lisp function FUNC with no arguments\n\
271 --insert FILE insert contents of FILE into current buffer\n\
272 --kill exit without asking for confirmation\n\
273 --load, -l FILE load Emacs Lisp FILE using the load function\n\
274 --visit FILE visit FILE using find-file\n\
280 --background-color, -bg COLOR window background color\n\
281 --border-color, -bd COLOR main border color\n\
282 --border-width, -bw WIDTH width of main border\n\
283 --color MODE color mode for character terminals;\n\
284 MODE defaults to `auto', and can also\n\
285 be `never', `auto', `always',\n\
286 or a mode name like `ansi8'\n\
287 --cursor-color, -cr COLOR color of the Emacs cursor indicating point\n\
288 --font, -fn FONT default font; must be fixed-width\n\
289 --foreground-color, -fg COLOR window foreground color\n\
290 --fullheight, -fh make the first frame high as the screen\n\
291 --fullscreen, -fs make first frame fullscreen\n\
292 --fullwidth, -fw make the first frame wide as the screen\n\
293 --geometry, -g GEOMETRY window geometry\n\
294 --horizontal-scroll-bars, -hb enable horizontal scroll bars\n\
295 --icon-type, -i use picture of gnu for Emacs icon\n\
296 --iconic start Emacs in iconified state\n\
297 --internal-border, -ib WIDTH width between text and main border\n\
298 --line-spacing, -lsp PIXELS additional space to put between lines\n\
299 --mouse-color, -ms COLOR mouse cursor color in Emacs window\n\
300 --name NAME title for initial Emacs frame\n\
301 --reverse-video, -r, -rv switch foreground and background\n\
302 --title, -T TITLE title for initial Emacs frame\n\
303 --vertical-scroll-bars, -vb enable vertical scroll bars\n\
304 --xrm XRESOURCES set additional X resources\n\
305 --help display this help and exit\n\
306 --version output version information and exit\n\
308 You can generally also specify long option names with a single -; for\n\
309 example, -batch as well as --batch. You can use any unambiguous\n\
310 abbreviation for a --option.\n\
312 Various environment variables and window system resources also affect\n\
313 Emacs' operation. See the main documentation.\n\
317 Report bugs to %s. First, please see the Bugs\n\
318 section of the Emacs manual or the file BUGS.\n"
321 /* Signal code for the fatal signal that was received. */
322 int fatal_error_code
;
324 /* Nonzero if handling a fatal error already. */
325 int fatal_error_in_progress
;
327 /* If non-null, call this function from fatal_error_signal before
328 committing suicide. */
330 void (*fatal_error_signal_hook
) P_ ((void));
335 handle_USR1_signal (sig
)
338 struct input_event buf
;
340 bzero (&buf
, sizeof buf
);
341 buf
.kind
= USER_SIGNAL_EVENT
;
342 buf
.frame_or_window
= selected_frame
;
344 kbd_buffer_store_event (&buf
);
350 handle_USR2_signal (sig
)
353 struct input_event buf
;
355 bzero (&buf
, sizeof buf
);
356 buf
.kind
= USER_SIGNAL_EVENT
;
358 buf
.frame_or_window
= selected_frame
;
360 kbd_buffer_store_event (&buf
);
364 /* Handle bus errors, invalid instruction, etc. */
366 fatal_error_signal (sig
)
369 fatal_error_code
= sig
;
370 signal (sig
, SIG_DFL
);
372 TOTALLY_UNBLOCK_INPUT
;
374 /* If fatal error occurs in code below, avoid infinite recursion. */
375 if (! fatal_error_in_progress
)
377 fatal_error_in_progress
= 1;
379 shut_down_emacs (sig
, 0, Qnil
);
383 LIB$
STOP (SS$_ABORT
);
385 /* Signal the same code; this time it will really be fatal.
386 Remember that since we're in a signal handler, the signal we're
387 going to send is probably blocked, so we have to unblock it if we
388 want to really receive it. */
390 sigunblock (sigmask (fatal_error_code
));
393 if (fatal_error_signal_hook
)
394 fatal_error_signal_hook ();
396 kill (getpid (), fatal_error_code
);
402 /* Handler for SIGDANGER. */
404 memory_warning_signal (sig
)
407 signal (sig
, memory_warning_signal
);
409 malloc_warning ("Operating system warns that virtual memory is running low.\n");
411 /* It might be unsafe to call do_auto_save now. */
412 force_auto_save_soon ();
416 /* We define abort, rather than using it from the library,
417 so that GDB can return from a breakpoint here.
418 MSDOS has its own definition in msdos.c. */
420 #if ! defined (DOS_NT) && ! defined (NO_ABORT)
422 #ifndef ABORT_RETURN_TYPE
423 #define ABORT_RETURN_TYPE void
429 kill (getpid (), SIGABRT
);
430 /* This shouldn't be executed, but it prevents a warning. */
436 /* Code for dealing with Lisp access to the Unix command line. */
439 init_cmdargs (argc
, argv
, skip_args
)
445 Lisp_Object name
, dir
, tem
;
446 int count
= SPECPDL_INDEX ();
447 Lisp_Object raw_name
;
452 raw_name
= build_string (argv
[0]);
454 /* Add /: to the front of the name
455 if it would otherwise be treated as magic. */
456 tem
= Ffind_file_name_handler (raw_name
, Qt
);
458 raw_name
= concat2 (build_string ("/:"), raw_name
);
460 Vinvocation_name
= Ffile_name_nondirectory (raw_name
);
461 Vinvocation_directory
= Ffile_name_directory (raw_name
);
463 /* If we got no directory in argv[0], search PATH to find where
464 Emacs actually came from. */
465 if (NILP (Vinvocation_directory
))
468 int yes
= openp (Vexec_path
, Vinvocation_name
,
469 Vexec_suffixes
, &found
, make_number (X_OK
));
472 /* Add /: to the front of the name
473 if it would otherwise be treated as magic. */
474 tem
= Ffind_file_name_handler (found
, Qt
);
476 found
= concat2 (build_string ("/:"), found
);
477 Vinvocation_directory
= Ffile_name_directory (found
);
481 if (!NILP (Vinvocation_directory
)
482 && NILP (Ffile_name_absolute_p (Vinvocation_directory
)))
483 /* Emacs was started with relative path, like ./emacs.
485 Vinvocation_directory
= Fexpand_file_name (Vinvocation_directory
, Qnil
);
487 Vinstallation_directory
= Qnil
;
489 if (!NILP (Vinvocation_directory
))
491 dir
= Vinvocation_directory
;
492 name
= Fexpand_file_name (Vinvocation_name
, dir
);
495 Lisp_Object tem
, lib_src_exists
;
496 Lisp_Object etc_exists
, info_exists
;
498 /* See if dir contains subdirs for use by Emacs.
499 Check for the ones that would exist in a build directory,
500 not including lisp and info. */
501 tem
= Fexpand_file_name (build_string ("lib-src"), dir
);
502 lib_src_exists
= Ffile_exists_p (tem
);
505 /* MSDOS installations frequently remove lib-src, but we still
506 must set installation-directory, or else info won't find
507 its files (it uses the value of installation-directory). */
508 tem
= Fexpand_file_name (build_string ("info"), dir
);
509 info_exists
= Ffile_exists_p (tem
);
514 if (!NILP (lib_src_exists
) || !NILP (info_exists
))
516 tem
= Fexpand_file_name (build_string ("etc"), dir
);
517 etc_exists
= Ffile_exists_p (tem
);
518 if (!NILP (etc_exists
))
520 Vinstallation_directory
521 = Ffile_name_as_directory (dir
);
526 /* See if dir's parent contains those subdirs. */
527 tem
= Fexpand_file_name (build_string ("../lib-src"), dir
);
528 lib_src_exists
= Ffile_exists_p (tem
);
532 /* See the MSDOS commentary above. */
533 tem
= Fexpand_file_name (build_string ("../info"), dir
);
534 info_exists
= Ffile_exists_p (tem
);
539 if (!NILP (lib_src_exists
) || !NILP (info_exists
))
541 tem
= Fexpand_file_name (build_string ("../etc"), dir
);
542 etc_exists
= Ffile_exists_p (tem
);
543 if (!NILP (etc_exists
))
545 tem
= Fexpand_file_name (build_string (".."), dir
);
546 Vinstallation_directory
547 = Ffile_name_as_directory (tem
);
552 /* If the Emacs executable is actually a link,
553 next try the dir that the link points into. */
554 tem
= Ffile_symlink_p (name
);
557 name
= Fexpand_file_name (tem
, dir
);
558 dir
= Ffile_name_directory (name
);
565 Vcommand_line_args
= Qnil
;
567 for (i
= argc
- 1; i
>= 0; i
--)
569 if (i
== 0 || i
> skip_args
)
571 = Fcons (build_string (argv
[i
]), Vcommand_line_args
);
574 unbind_to (count
, Qnil
);
577 DEFUN ("invocation-name", Finvocation_name
, Sinvocation_name
, 0, 0, 0,
578 doc
: /* Return the program name that was used to run Emacs.
579 Any directory names are omitted. */)
582 return Fcopy_sequence (Vinvocation_name
);
585 DEFUN ("invocation-directory", Finvocation_directory
, Sinvocation_directory
,
587 doc
: /* Return the directory name in which the Emacs executable was located. */)
590 return Fcopy_sequence (Vinvocation_directory
);
595 #ifdef LINK_CRTL_SHARE
596 #ifdef SHARABLE_LIB_BUG
597 extern noshare
char **environ
;
598 #endif /* SHARABLE_LIB_BUG */
599 #endif /* LINK_CRTL_SHARE */
603 /* A valid but unlikely value for the TZ environment value.
604 It is OK (though a bit slower) if the user actually chooses this value. */
605 static char dump_tz
[] = "UtC0";
608 #ifndef ORDINARY_LINK
609 /* We don't include crtbegin.o and crtend.o in the link,
610 so these functions and variables might be missed.
611 Provide dummy definitions to avoid error.
612 (We don't have any real constructors or destructors.) */
614 #ifndef GCC_CTORS_IN_LIBC
615 void __do_global_ctors ()
617 void __do_global_ctors_aux ()
619 void __do_global_dtors ()
621 /* GNU/Linux has a bug in its library; avoid an error. */
623 char * __CTOR_LIST__
[2] = { (char *) (-1), 0 };
625 char * __DTOR_LIST__
[2] = { (char *) (-1), 0 };
626 #endif /* GCC_CTORS_IN_LIBC */
629 #endif /* __GNUC__ */
630 #endif /* ORDINARY_LINK */
632 /* Test whether the next argument in ARGV matches SSTR or a prefix of
633 LSTR (at least MINLEN characters). If so, then if VALPTR is non-null
634 (the argument is supposed to have a value) store in *VALPTR either
635 the next argument or the portion of this one after the equal sign.
636 ARGV is read starting at position *SKIPPTR; this index is advanced
637 by the number of arguments used.
639 Too bad we can't just use getopt for all of this, but we don't have
640 enough information to do it right. */
643 argmatch (argv
, argc
, sstr
, lstr
, minlen
, valptr
, skipptr
)
656 /* Don't access argv[argc]; give up in advance. */
657 if (argc
<= *skipptr
+ 1)
660 arg
= argv
[*skipptr
+1];
663 if (strcmp (arg
, sstr
) == 0)
667 *valptr
= argv
[*skipptr
+2];
674 arglen
= (valptr
!= NULL
&& (p
= index (arg
, '=')) != NULL
675 ? p
- arg
: strlen (arg
));
676 if (lstr
== 0 || arglen
< minlen
|| strncmp (arg
, lstr
, arglen
) != 0)
678 else if (valptr
== NULL
)
689 else if (argv
[*skipptr
+2] != NULL
)
691 *valptr
= argv
[*skipptr
+2];
701 #ifdef DOUG_LEA_MALLOC
703 /* malloc can be invoked even before main (e.g. by the dynamic
704 linker), so the dumped malloc state must be restored as early as
705 possible using this special hook. */
708 malloc_initialize_hook ()
711 extern char **environ
;
716 if (!malloc_using_checking
)
717 /* Work around a bug in glibc's malloc. MALLOC_CHECK_ must be
718 ignored if the heap to be restored was constructed without
719 malloc checking. Can't use unsetenv, since that calls malloc. */
723 for (p
= environ
; p
&& *p
; p
++)
724 if (strncmp (*p
, "MALLOC_CHECK_=", 14) == 0)
733 malloc_set_state (malloc_state_ptr
);
734 free (malloc_state_ptr
);
737 malloc_using_checking
= getenv ("MALLOC_CHECK_") != NULL
;
740 void (*__malloc_initialize_hook
) () = malloc_initialize_hook
;
742 #endif /* DOUG_LEA_MALLOC */
745 #define REPORT_EMACS_BUG_ADDRESS "bug-gnu-emacs@gnu.org"
746 #define REPORT_EMACS_BUG_PRETEST_ADDRESS "emacs-pretest-bug@gnu.org"
748 /* This function is used to determine an address to which bug report should
752 bug_reporting_address ()
758 temp
= Fsymbol_value (intern ("emacs-version"));
760 /* When `emacs-version' is invalid, use normal address. */
762 return REPORT_EMACS_BUG_ADDRESS
;
764 string
= SDATA (temp
);
766 /* Count dots in `emacs-version'. */
774 /* When `emacs-version' has at least three dots, it is development or
775 pretest version of Emacs. */
776 return count
>= 3 ? REPORT_EMACS_BUG_PRETEST_ADDRESS
: REPORT_EMACS_BUG_ADDRESS
;
796 char stack_bottom_variable
;
797 int do_initial_setlocale
;
802 #ifdef HAVE_SETRLIMIT
809 extern Lisp_Object
*stack_base
;
813 #ifdef LINUX_SBRK_BUG
817 #ifdef RUN_TIME_REMAP
819 run_time_remap (argv
[0]);
824 unexec_init_emacs_zone ();
827 sort_args (argc
, argv
);
829 while (argv
[argc
]) argc
++;
831 if (argmatch (argv
, argc
, "-version", "--version", 3, NULL
, &skip_args
)
832 /* We don't know the version number unless this is a dumped Emacs.
833 So ignore --version otherwise. */
837 tem
= Fsymbol_value (intern ("emacs-version"));
840 fprintf (stderr
, "Invalid value of `emacs-version'\n");
845 printf ("GNU Emacs %s\n", SDATA (tem
));
846 printf ("Copyright (C) 2004 Free Software Foundation, Inc.\n");
847 printf ("GNU Emacs comes with ABSOLUTELY NO WARRANTY.\n");
848 printf ("You may redistribute copies of Emacs\n");
849 printf ("under the terms of the GNU General Public License.\n");
850 printf ("For more information about these matters, ");
851 printf ("see the file named COPYING.\n");
856 /* Map in shared memory, if we are using that. */
858 if (argmatch (argv
, argc
, "-nl", "--no-shared-memory", 6, NULL
, &skip_args
))
861 /* The shared memory was just restored, which clobbered this. */
867 /* The shared memory was just restored, which clobbered this. */
874 extern int malloc_cookie
;
875 /* This helps out unexnext.c. */
877 if (malloc_jumpstart (malloc_cookie
) != 0)
878 printf ("malloc jumpstart failed!\n");
883 /* Skip process serial number passed in the form -psn_x_y as
884 command-line argument. */
885 if (argc
> skip_args
+ 1 && strncmp (argv
[skip_args
+1], "-psn_", 5) == 0)
890 /* If -map specified, map the data file in. */
893 if (argmatch (argv
, argc
, "-map", "--map-data", 3, &file
, &skip_args
))
897 #ifdef LINK_CRTL_SHARE
898 #ifdef SHARABLE_LIB_BUG
899 /* Bletcherous shared libraries! */
901 stdin
= fdopen (0, "r");
903 stdout
= fdopen (1, "w");
905 stderr
= fdopen (2, "w");
908 #endif /* SHARABLE_LIB_BUG */
909 #endif /* LINK_CRTL_SHARE */
912 #if defined (HAVE_SETRLIMIT) && defined (RLIMIT_STACK)
913 /* Extend the stack space available.
914 Don't do that if dumping, since some systems (e.g. DJGPP)
915 might define a smaller stack limit at that time. */
918 && (!noninteractive
|| initialized
)
920 && !getrlimit (RLIMIT_STACK
, &rlim
))
923 extern int re_max_failures
;
924 /* Approximate the amount regex.c needs per unit of re_max_failures. */
925 int ratio
= 20 * sizeof (char *);
926 /* Then add 33% to cover the size of the smaller stacks that regex.c
927 successively allocates and discards, on its way to the maximum. */
929 /* Add in some extra to cover
930 what we're likely to use for other reasons. */
931 newlim
= re_max_failures
* ratio
+ 200000;
933 /* NetBSD (at least NetBSD 1.2G and former) has a bug in its
934 stack allocation routine for new process that the allocation
935 fails if stack limit is not on page boundary. So, round up the
936 new limit to page boundary. */
937 newlim
= (newlim
+ getpagesize () - 1) / getpagesize () * getpagesize();
939 if (newlim
> rlim
.rlim_max
)
941 newlim
= rlim
.rlim_max
;
942 /* Don't let regex.c overflow the stack we have. */
943 re_max_failures
= (newlim
- 200000) / ratio
;
945 if (rlim
.rlim_cur
< newlim
)
946 rlim
.rlim_cur
= newlim
;
948 setrlimit (RLIMIT_STACK
, &rlim
);
950 #endif /* HAVE_SETRLIMIT and RLIMIT_STACK */
952 /* Record (approximately) where the stack begins. */
953 stack_bottom
= &stack_bottom_variable
;
955 #ifdef USG_SHARED_LIBRARIES
957 brk ((void *)bss_end
);
962 #ifndef SYSTEM_MALLOC
963 /* Arrange to get warning messages as memory fills up. */
964 memory_warnings (0, malloc_warning
);
966 /* Call malloc at least once, to run the initial __malloc_hook.
967 Also call realloc and free for consistency. */
968 free (realloc (malloc (4), 4));
970 /* Arrange to disable interrupt input inside malloc etc. */
971 uninterrupt_malloc ();
972 #endif /* not SYSTEM_MALLOC */
974 #if defined (MSDOS) || defined (WINDOWSNT)
975 /* We do all file input/output as binary files. When we need to translate
976 newlines, we do that manually. */
978 #endif /* MSDOS || WINDOWSNT */
982 if (!isatty (fileno (stdin
)))
983 setmode (fileno (stdin
), O_BINARY
);
984 if (!isatty (fileno (stdout
)))
987 setmode (fileno (stdout
), O_BINARY
);
989 #else /* not __DJGPP__ >= 2 */
990 (stdin
)->_flag
&= ~_IOTEXT
;
991 (stdout
)->_flag
&= ~_IOTEXT
;
992 (stderr
)->_flag
&= ~_IOTEXT
;
993 #endif /* not __DJGPP__ >= 2 */
996 #ifdef SET_EMACS_PRIORITY
998 nice (emacs_priority
);
1000 #endif /* SET_EMACS_PRIORITY */
1002 /* Skip initial setlocale if LC_ALL is "C", as it's not needed in that case.
1003 The build procedure uses this while dumping, to ensure that the
1004 dumped Emacs does not have its system locale tables initialized,
1005 as that might cause screwups when the dumped Emacs starts up. */
1007 char *lc_all
= getenv ("LC_ALL");
1008 do_initial_setlocale
= ! lc_all
|| strcmp (lc_all
, "C");
1011 /* Set locale now, so that initial error messages are localized properly.
1012 fixup_locale must wait until later, since it builds strings. */
1013 if (do_initial_setlocale
)
1014 setlocale (LC_ALL
, "");
1016 #ifdef EXTRA_INITIALIZE
1020 inhibit_window_system
= 0;
1022 /* Handle the -t switch, which specifies filename to use as terminal. */
1026 if (argmatch (argv
, argc
, "-t", "--terminal", 4, &term
, &skip_args
))
1031 result
= emacs_open (term
, O_RDWR
, 0);
1034 char *errstring
= strerror (errno
);
1035 fprintf (stderr
, "%s: %s: %s\n", argv
[0], term
, errstring
);
1041 fprintf (stderr
, "%s: %s: not a tty\n", argv
[0], term
);
1044 fprintf (stderr
, "Using %s\n", term
);
1045 #ifdef HAVE_WINDOW_SYSTEM
1046 inhibit_window_system
= 1; /* -t => -nw */
1053 /* Command line option --no-windows is deprecated and thus not mentioned
1054 in the manual and usage informations. */
1055 if (argmatch (argv
, argc
, "-nw", "--no-window-system", 6, NULL
, &skip_args
)
1056 || argmatch (argv
, argc
, "-nw", "--no-windows", 6, NULL
, &skip_args
))
1057 inhibit_window_system
= 1;
1059 /* Handle the -batch switch, which means don't do interactive display. */
1061 if (argmatch (argv
, argc
, "-batch", "--batch", 5, NULL
, &skip_args
))
1063 if (argmatch (argv
, argc
, "-script", "--script", 3, &junk
, &skip_args
))
1065 noninteractive
= 1; /* Set batch mode. */
1066 /* Convert --script to -l, un-skip it, and sort again so that -l will be
1067 handled in proper sequence. */
1068 argv
[skip_args
- 1] = "-l";
1070 sort_args (argc
, argv
);
1073 /* Handle the --help option, which gives a usage message. */
1074 if (argmatch (argv
, argc
, "-help", "--help", 3, NULL
, &skip_args
))
1076 printf (USAGE1
, argv
[0], USAGE2
);
1078 printf (USAGE4
, bug_reporting_address ());
1082 if (! noninteractive
)
1087 inherited_pgroup
= EMACS_GETPGRP (0);
1088 setpgrp (0, getpid ());
1091 #if defined (USG5) && defined (INTERRUPT_INPUT)
1099 /* Don't catch SIGHUP if dumping. */
1106 sigblock (sigmask (SIGHUP
));
1107 /* In --batch mode, don't catch SIGHUP if already ignored.
1108 That makes nohup work. */
1109 if (! noninteractive
1110 || signal (SIGHUP
, SIG_IGN
) != SIG_IGN
)
1111 signal (SIGHUP
, fatal_error_signal
);
1112 sigunblock (sigmask (SIGHUP
));
1117 ! noninteractive
|| initialized
1123 /* Don't catch these signals in batch mode if dumping.
1124 On some machines, this sets static data that would make
1125 signal fail to work right when the dumped Emacs is run. */
1126 signal (SIGQUIT
, fatal_error_signal
);
1127 signal (SIGILL
, fatal_error_signal
);
1128 signal (SIGTRAP
, fatal_error_signal
);
1130 signal (SIGUSR1
, handle_USR1_signal
);
1132 signal (SIGUSR2
, handle_USR2_signal
);
1136 signal (SIGABRT
, fatal_error_signal
);
1139 signal (SIGHWE
, fatal_error_signal
);
1142 signal (SIGPRE
, fatal_error_signal
);
1145 signal (SIGORE
, fatal_error_signal
);
1148 signal (SIGUME
, fatal_error_signal
);
1151 signal (SIGDLK
, fatal_error_signal
);
1154 signal (SIGCPULIM
, fatal_error_signal
);
1157 /* This is missing on some systems - OS/2, for example. */
1158 signal (SIGIOT
, fatal_error_signal
);
1161 signal (SIGEMT
, fatal_error_signal
);
1163 signal (SIGFPE
, fatal_error_signal
);
1165 signal (SIGBUS
, fatal_error_signal
);
1167 signal (SIGSEGV
, fatal_error_signal
);
1169 signal (SIGSYS
, fatal_error_signal
);
1171 signal (SIGTERM
, fatal_error_signal
);
1173 signal (SIGXCPU
, fatal_error_signal
);
1176 signal (SIGXFSZ
, fatal_error_signal
);
1177 #endif /* SIGXFSZ */
1180 /* This just means available memory is getting low. */
1181 signal (SIGDANGER
, memory_warning_signal
);
1185 /* 20 is SIGCHLD, 21 is SIGTTIN, 22 is SIGTTOU. */
1186 signal (SIGXCPU
, fatal_error_signal
);
1188 signal (SIGIOINT
, fatal_error_signal
);
1190 signal (SIGGRANT
, fatal_error_signal
);
1191 signal (SIGRETRACT
, fatal_error_signal
);
1192 signal (SIGSOUND
, fatal_error_signal
);
1193 signal (SIGMSG
, fatal_error_signal
);
1197 noninteractive1
= noninteractive
;
1199 /* Perform basic initializations (not merely interning symbols). */
1206 init_charset_once ();
1207 init_coding_once ();
1208 init_syntax_once (); /* Create standard syntax table. */
1209 init_category_once (); /* Create standard category table. */
1210 /* Must be done before init_buffer. */
1211 init_casetab_once ();
1212 init_buffer_once (); /* Create buffer table and some buffers. */
1213 init_minibuf_once (); /* Create list of minibuffers. */
1214 /* Must precede init_window_once. */
1216 /* Call syms_of_xfaces before init_window_once because that
1217 function creates Vterminal_frame. Termcap frames now use
1218 faces, and the face implementation uses some symbols as
1221 /* Call syms_of_keyboard before init_window_once because
1222 keyboard sets up symbols that include some face names that
1223 the X support will want to use. This can happen when
1224 CANNOT_DUMP is defined. */
1225 syms_of_keyboard ();
1228 /* init_window_once calls make_terminal_frame which on Mac OS
1229 creates a full-fledge output_mac type frame. This does not
1230 work correctly before syms_of_textprop, syms_of_macfns,
1231 syms_of_ccl, syms_of_fontset, syms_of_xterm, syms_of_search,
1232 syms_of_frame, mac_initialize, and init_keyboard have already
1234 syms_of_textprop ();
1248 init_window_once (); /* Init the window system. */
1249 init_fileio_once (); /* Must precede any path manipulation. */
1250 #ifdef HAVE_WINDOW_SYSTEM
1251 init_fringe_once (); /* Swap bitmaps if necessary. */
1252 #endif /* HAVE_WINDOW_SYSTEM */
1257 if (do_initial_setlocale
)
1260 Vsystem_messages_locale
= Vprevious_system_messages_locale
;
1261 Vsystem_time_locale
= Vprevious_system_time_locale
;
1266 #ifdef CLASH_DETECTION
1270 running_asynch_code
= 0;
1272 /* Handle --unibyte and the EMACS_UNIBYTE envvar,
1273 but not while dumping. */
1276 int inhibit_unibyte
= 0;
1278 /* --multibyte overrides EMACS_UNIBYTE. */
1279 if (argmatch (argv
, argc
, "-no-unibyte", "--no-unibyte", 4, NULL
, &skip_args
)
1280 || argmatch (argv
, argc
, "-multibyte", "--multibyte", 4, NULL
, &skip_args
)
1281 /* Ignore EMACS_UNIBYTE before dumping. */
1282 || (!initialized
&& noninteractive
))
1283 inhibit_unibyte
= 1;
1285 /* --unibyte requests that we set up to do everything with single-byte
1286 buffers and strings. We need to handle this before calling
1287 init_lread, init_editfns and other places that generate Lisp strings
1288 from text in the environment. */
1289 /* Actually this shouldn't be needed as of 20.4 in a generally
1290 unibyte environment. As handa says, environment values
1291 aren't now decoded; also existing buffers are now made
1292 unibyte during startup if .emacs sets unibyte. Tested with
1293 8-bit data in environment variables and /etc/passwd, setting
1294 unibyte and Latin-1 in .emacs. -- Dave Love */
1295 if (argmatch (argv
, argc
, "-unibyte", "--unibyte", 4, NULL
, &skip_args
)
1296 || argmatch (argv
, argc
, "-no-multibyte", "--no-multibyte", 4, NULL
, &skip_args
)
1297 || (getenv ("EMACS_UNIBYTE") && !inhibit_unibyte
))
1299 Lisp_Object old_log_max
;
1300 Lisp_Object symbol
, tail
;
1302 symbol
= intern ("default-enable-multibyte-characters");
1303 Fset (symbol
, Qnil
);
1307 /* Erase pre-dump messages in *Messages* now so no abort. */
1308 old_log_max
= Vmessage_log_max
;
1309 XSETFASTINT (Vmessage_log_max
, 0);
1310 message_dolog ("", 0, 1, 0);
1311 Vmessage_log_max
= old_log_max
;
1314 for (tail
= Vbuffer_alist
; CONSP (tail
);
1319 buffer
= Fcdr (XCAR (tail
));
1320 /* Verify that all buffers are empty now, as they
1322 if (BUF_Z (XBUFFER (buffer
)) > BUF_BEG (XBUFFER (buffer
)))
1324 /* It is safe to do this crudely in an empty buffer. */
1325 XBUFFER (buffer
)->enable_multibyte_characters
= Qnil
;
1331 = argmatch (argv
, argc
, "-nl", "--no-loadup", 6, NULL
, &skip_args
);
1334 #ifdef HAVE_X_WINDOWS
1335 /* Stupid kludge to catch command-line display spec. We can't
1336 handle this argument entirely in window system dependent code
1337 because we don't even know which window system dependent code
1338 to run until we've recognized this argument. */
1340 char *displayname
= 0;
1341 int count_before
= skip_args
;
1343 /* Skip any number of -d options, but only use the last one. */
1346 int count_before_this
= skip_args
;
1348 if (argmatch (argv
, argc
, "-d", "--display", 3, &displayname
, &skip_args
))
1350 else if (argmatch (argv
, argc
, "-display", 0, 3, &displayname
, &skip_args
))
1355 count_before
= count_before_this
;
1358 /* If we have the form --display=NAME,
1359 convert it into -d name.
1360 This requires inserting a new element into argv. */
1361 if (displayname
!= 0 && skip_args
- count_before
== 1)
1363 char **new = (char **) xmalloc (sizeof (char *) * (argc
+ 2));
1366 for (j
= 0; j
< count_before
+ 1; j
++)
1368 new[count_before
+ 1] = "-d";
1369 new[count_before
+ 2] = displayname
;
1370 for (j
= count_before
+ 2; j
<argc
; j
++)
1371 new[j
+ 1] = argv
[j
];
1375 /* Change --display to -d, when its arg is separate. */
1376 else if (displayname
!= 0 && skip_args
> count_before
1377 && argv
[count_before
+ 1][1] == '-')
1378 argv
[count_before
+ 1] = "-d";
1380 /* Don't actually discard this arg. */
1381 skip_args
= count_before
;
1385 /* argmatch must not be used after here,
1386 except when bulding temacs
1387 because the -d argument has not been skipped in skip_args. */
1390 /* Call early 'cause init_environment needs it. */
1392 /* Set defaults for several environment variables. */
1394 init_environment (argc
, argv
, skip_args
);
1401 /* Initialize environment from registry settings. */
1402 init_environment (argv
);
1403 init_ntproc (); /* must precede init_editfns. */
1408 init_mac_osx_environment ();
1411 /* egetenv is a pretty low-level facility, which may get called in
1412 many circumstances; it seems flimsy to put off initializing it
1413 until calling init_callproc. */
1414 set_process_environment ();
1415 /* AIX crashes are reported in system versions 3.2.3 and 3.2.4
1416 if this is not done. Do it after set_process_environment so that we
1417 don't pollute Vprocess_environment. */
1418 /* Setting LANG here will defeat the startup locale processing... */
1423 init_buffer (); /* Init default directory of main buffer. */
1425 init_callproc_1 (); /* Must precede init_cmdargs and init_sys_modes. */
1426 init_cmdargs (argc
, argv
, skip_args
); /* Must precede init_lread. */
1430 /* Erase any pre-dump messages in the message log, to avoid confusion. */
1431 Lisp_Object old_log_max
;
1432 old_log_max
= Vmessage_log_max
;
1433 XSETFASTINT (Vmessage_log_max
, 0);
1434 message_dolog ("", 0, 1, 0);
1435 Vmessage_log_max
= old_log_max
;
1438 init_callproc (); /* Must follow init_cmdargs but not init_sys_modes. */
1441 /* Intern the names of all standard functions and variables;
1442 define standard keys. */
1446 /* The basic levels of Lisp must come first. */
1447 /* And data must come first of all
1448 for the sake of symbols like error-message. */
1450 /* Called before init_window_once for Mac OS Classic. */
1458 syms_of_floatfns ();
1462 syms_of_bytecode ();
1464 syms_of_casefiddle ();
1466 syms_of_callproc ();
1467 syms_of_category ();
1469 /* Called before init_window_once for Mac OS Classic. */
1474 #ifndef NO_DIR_LIBRARY
1476 #endif /* not NO_DIR_LIBRARY */
1482 syms_of_coding (); /* This should be after syms_of_fileio. */
1483 #ifdef CLASH_DETECTION
1484 syms_of_filelock ();
1485 #endif /* CLASH_DETECTION */
1494 /* Called before init_window_once for Mac OS Classic. */
1505 /* Called before init_window_once for Mac OS Classic. */
1506 syms_of_textprop ();
1508 syms_of_composite ();
1514 #endif /* WINDOWSNT */
1517 #ifdef HAVE_WINDOW_SYSTEM
1520 #endif /* HAVE_WINDOW_SYSTEM */
1521 #ifdef HAVE_X_WINDOWS
1531 #endif /* HAVE_X_WINDOWS */
1536 /* Called before init_window_once for Mac OS Classic. */
1545 syms_of_w32select ();
1548 #endif /* HAVE_NTGUI */
1555 #endif /* HAVE_CARBON */
1565 keys_of_casefiddle ();
1568 keys_of_keyboard ();
1576 Initialization that must be done even if the global variable
1577 initialized is non zero
1580 globals_of_w32fns ();
1581 globals_of_w32menu ();
1582 #endif /* end #ifdef HAVE_NTGUI */
1585 init_process (); /* init_display uses add_keyboard_wait_descriptor. */
1587 /* Called before init_window_once for Mac OS Classic. */
1588 init_keyboard (); /* This too must precede init_sys_modes. */
1591 init_vmsproc (); /* And this too. */
1593 if (!noninteractive
)
1596 init_vms_input ();/* init_display calls get_tty_size, that needs this. */
1598 init_display (); /* Determine terminal type. Calls init_sys_modes. */
1602 #ifdef HAVE_WINDOW_SYSTEM
1605 #endif /* HAVE_WINDOW_SYSTEM */
1620 /* Handle -l loadup, args passed by Makefile. */
1621 if (argmatch (argv
, argc
, "-l", "--load", 3, &file
, &skip_args
))
1622 Vtop_level
= Fcons (intern ("load"),
1623 Fcons (build_string (file
), Qnil
));
1624 /* Unless next switch is -nl, load "loadup.el" first thing. */
1626 Vtop_level
= Fcons (intern ("load"),
1627 Fcons (build_string ("loadup.el"), Qnil
));
1634 /* If the execution TZ happens to be the same as the dump TZ,
1635 change it to some other value and then change it back,
1636 to force the underlying implementation to reload the TZ info.
1637 This is needed on implementations that load TZ info from files,
1638 since the TZ file contents may differ between dump and execution. */
1639 char *tz
= getenv ("TZ");
1640 if (tz
&& !strcmp (tz
, dump_tz
))
1650 /* Set up for profiling. This is known to work on FreeBSD and
1651 GNU/Linux. It might work on some other systems too. Give it a
1652 try and tell us if it works on your system. To compile for
1653 profiling use something like `make CFLAGS="-pg -g -O -DPROFILING=1'. */
1654 #if defined (__FreeBSD__) || defined (__linux)
1658 extern void _mcleanup ();
1660 extern void safe_bcopy ();
1661 extern void dump_opcode_frequencies ();
1664 /* This uses safe_bcopy because that function comes first in the
1665 Emacs executable. It might be better to use something that
1666 gives the start of the text segment, but start_of_text is not
1667 defined on all systems now. */
1668 monstartup (safe_bcopy
, &etext
);
1677 #ifdef LOCALTIME_CACHE
1678 /* Some versions of localtime have a bug. They cache the value of the time
1679 zone rather than looking it up every time. Since localtime() is
1680 called to bolt the undumping time into the undumped emacs, this
1681 results in localtime ignoring the TZ environment variable.
1682 This flushes the new TZ value into localtime. */
1684 #endif /* defined (LOCALTIME_CACHE) */
1686 /* Enter editor command loop. This never returns. */
1692 /* Sort the args so we can find the most important ones
1693 at the beginning of argv. */
1695 /* First, here's a table of all the standard options. */
1697 struct standard_args
1705 struct standard_args standard_args
[] =
1707 { "-version", "--version", 150, 0 },
1709 { "-nl", "--no-shared-memory", 140, 0 },
1712 { "-map", "--map-data", 130, 0 },
1714 { "-t", "--terminal", 120, 1 },
1715 { "-nw", "--no-window-system", 110, 0 },
1716 { "-nw", "--no-windows", 110, 0 },
1717 { "-batch", "--batch", 100, 0 },
1718 { "-script", "--script", 100, 1 },
1719 { "-help", "--help", 90, 0 },
1720 { "-no-unibyte", "--no-unibyte", 83, 0 },
1721 { "-multibyte", "--multibyte", 82, 0 },
1722 { "-unibyte", "--unibyte", 81, 0 },
1723 { "-no-multibyte", "--no-multibyte", 80, 0 },
1724 { "-nl", "--no-loadup", 70, 0 },
1725 /* -d must come last before the options handled in startup.el. */
1726 { "-d", "--display", 60, 1 },
1727 { "-display", 0, 60, 1 },
1728 /* Now for the options handled in startup.el. */
1729 { "-q", "--no-init-file", 50, 0 },
1730 { "-no-init-file", 0, 50, 0 },
1731 { "-no-site-file", "--no-site-file", 40, 0 },
1732 { "-no-splash", "--no-splash", 40, 0 },
1733 { "-u", "--user", 30, 1 },
1734 { "-user", 0, 30, 1 },
1735 { "-debug-init", "--debug-init", 20, 0 },
1736 { "-i", "--icon-type", 15, 0 },
1737 { "-itype", 0, 15, 0 },
1738 { "-iconic", "--iconic", 15, 0 },
1739 { "-bg", "--background-color", 10, 1 },
1740 { "-background", 0, 10, 1 },
1741 { "-fg", "--foreground-color", 10, 1 },
1742 { "-foreground", 0, 10, 1 },
1743 { "-bd", "--border-color", 10, 1 },
1744 { "-bw", "--border-width", 10, 1 },
1745 { "-ib", "--internal-border", 10, 1 },
1746 { "-ms", "--mouse-color", 10, 1 },
1747 { "-cr", "--cursor-color", 10, 1 },
1748 { "-fn", "--font", 10, 1 },
1749 { "-font", 0, 10, 1 },
1750 { "-fs", "--fullscreen", 10, 0 },
1751 { "-fw", "--fullwidth", 10, 0 },
1752 { "-fh", "--fullheight", 10, 0 },
1753 { "-g", "--geometry", 10, 1 },
1754 { "-geometry", 0, 10, 1 },
1755 { "-T", "--title", 10, 1 },
1756 { "-title", 0, 10, 1 },
1757 { "-name", "--name", 10, 1 },
1758 { "-xrm", "--xrm", 10, 1 },
1759 { "-r", "--reverse-video", 5, 0 },
1761 { "-reverse", 0, 5, 0 },
1762 { "-hb", "--horizontal-scroll-bars", 5, 0 },
1763 { "-vb", "--vertical-scroll-bars", 5, 0 },
1764 { "-color", "--color", 5, 0},
1765 /* These have the same priority as ordinary file name args,
1766 so they are not reordered with respect to those. */
1767 { "-L", "--directory", 0, 1 },
1768 { "-directory", 0, 0, 1 },
1769 { "-l", "--load", 0, 1 },
1770 { "-load", 0, 0, 1 },
1771 { "-f", "--funcall", 0, 1 },
1772 { "-funcall", 0, 0, 1 },
1773 { "-eval", "--eval", 0, 1 },
1774 { "-execute", "--execute", 0, 1 },
1775 { "-find-file", "--find-file", 0, 1 },
1776 { "-visit", "--visit", 0, 1 },
1777 { "-file", "--file", 0, 1 },
1778 { "-insert", "--insert", 0, 1 },
1779 /* This should be processed after ordinary file name args and the like. */
1780 { "-kill", "--kill", -10, 0 },
1783 /* Reorder the elements of ARGV (assumed to have ARGC elements)
1784 so that the highest priority ones come first.
1785 Do not change the order of elements of equal priority.
1786 If an option takes an argument, keep it and its argument together.
1788 If an option that takes no argument appears more
1789 than once, eliminate all but one copy of it. */
1792 sort_args (argc
, argv
)
1796 char **new = (char **) xmalloc (sizeof (char *) * argc
);
1797 /* For each element of argv,
1798 the corresponding element of options is:
1799 0 for an option that takes no arguments,
1800 1 for an option that takes one argument, etc.
1801 -1 for an ordinary non-option argument. */
1802 int *options
= (int *) xmalloc (sizeof (int) * argc
);
1803 int *priority
= (int *) xmalloc (sizeof (int) * argc
);
1805 int incoming_used
= 1;
1809 /* Categorize all the options,
1810 and figure out which argv elts are option arguments. */
1811 for (from
= 1; from
< argc
; from
++)
1815 if (argv
[from
][0] == '-')
1820 /* If we have found "--", don't consider
1821 any more arguments as options. */
1822 if (argv
[from
][1] == '-' && argv
[from
][2] == 0)
1824 /* Leave the "--", and everything following it, at the end. */
1825 for (; from
< argc
; from
++)
1827 priority
[from
] = -100;
1833 /* Look for a match with a known old-fashioned option. */
1834 for (i
= 0; i
< sizeof (standard_args
) / sizeof (standard_args
[0]); i
++)
1835 if (!strcmp (argv
[from
], standard_args
[i
].name
))
1837 options
[from
] = standard_args
[i
].nargs
;
1838 priority
[from
] = standard_args
[i
].priority
;
1839 if (from
+ standard_args
[i
].nargs
>= argc
)
1840 fatal ("Option `%s' requires an argument\n", argv
[from
]);
1841 from
+= standard_args
[i
].nargs
;
1845 /* Look for a match with a known long option.
1846 MATCH is -1 if no match so far, -2 if two or more matches so far,
1847 >= 0 (the table index of the match) if just one match so far. */
1848 if (argv
[from
][1] == '-')
1851 thislen
= strlen (argv
[from
]);
1852 equals
= index (argv
[from
], '=');
1854 thislen
= equals
- argv
[from
];
1857 i
< sizeof (standard_args
) / sizeof (standard_args
[0]); i
++)
1858 if (standard_args
[i
].longname
1859 && !strncmp (argv
[from
], standard_args
[i
].longname
,
1868 /* If we found exactly one match, use that. */
1871 options
[from
] = standard_args
[match
].nargs
;
1872 priority
[from
] = standard_args
[match
].priority
;
1873 /* If --OPTION=VALUE syntax is used,
1874 this option uses just one argv element. */
1877 if (from
+ options
[from
] >= argc
)
1878 fatal ("Option `%s' requires an argument\n", argv
[from
]);
1879 from
+= options
[from
];
1886 /* Copy the arguments, in order of decreasing priority, to NEW. */
1888 while (incoming_used
< argc
)
1891 int best_priority
= -9999;
1893 /* Find the highest priority remaining option.
1894 If several have equal priority, take the first of them. */
1895 for (from
= 1; from
< argc
; from
++)
1897 if (argv
[from
] != 0 && priority
[from
] > best_priority
)
1899 best_priority
= priority
[from
];
1902 /* Skip option arguments--they are tied to the options. */
1903 if (options
[from
] > 0)
1904 from
+= options
[from
];
1910 /* Copy the highest priority remaining option, with its args, to NEW.
1911 Unless it is a duplicate of the previous one. */
1912 if (! (options
[best
] == 0
1913 && ! strcmp (new[to
- 1], argv
[best
])))
1915 new[to
++] = argv
[best
];
1916 for (i
= 0; i
< options
[best
]; i
++)
1917 new[to
++] = argv
[best
+ i
+ 1];
1920 incoming_used
+= 1 + (options
[best
] > 0 ? options
[best
] : 0);
1922 /* Clear out this option in ARGV. */
1924 for (i
= 0; i
< options
[best
]; i
++)
1925 argv
[best
+ i
+ 1] = 0;
1928 /* If duplicate options were deleted, fill up extra space with null ptrs. */
1932 bcopy (new, argv
, sizeof (char *) * argc
);
1939 DEFUN ("kill-emacs", Fkill_emacs
, Skill_emacs
, 0, 1, "P",
1940 doc
: /* Exit the Emacs job and kill it.
1941 If ARG is an integer, return ARG as the exit program code.
1942 If ARG is a string, stuff it as keyboard input.
1944 The value of `kill-emacs-hook', if not void,
1945 is a list of functions (of no args),
1946 all of which are called before Emacs is actually killed. */)
1950 struct gcpro gcpro1
;
1957 if (!NILP (Vrun_hooks
) && !noninteractive
)
1958 call1 (Vrun_hooks
, intern ("kill-emacs-hook"));
1962 /* Is it really necessary to do this deassign
1963 when we are going to exit anyway? */
1968 shut_down_emacs (0, 0, STRINGP (arg
) ? arg
: Qnil
);
1970 /* If we have an auto-save list file,
1971 kill it because we are exiting Emacs deliberately (not crashing).
1972 Do it after shut_down_emacs, which does an auto-save. */
1973 if (STRINGP (Vauto_save_list_file_name
))
1974 unlink (SDATA (Vauto_save_list_file_name
));
1976 exit (INTEGERP (arg
) ? XINT (arg
)
1987 /* Perform an orderly shutdown of Emacs. Autosave any modified
1988 buffers, kill any child processes, clean up the terminal modes (if
1989 we're in the foreground), and other stuff like that. Don't perform
1990 any redisplay; this may be called when Emacs is shutting down in
1991 the background, or after its X connection has died.
1993 If SIG is a signal number, print a message for it.
1995 This is called by fatal signal handlers, X protocol error handlers,
1999 shut_down_emacs (sig
, no_x
, stuff
)
2003 /* Prevent running of hooks from now on. */
2006 /* Don't update display from now on. */
2007 Vinhibit_redisplay
= Qt
;
2009 /* If we are controlling the terminal, reset terminal modes. */
2010 #ifdef EMACS_HAVE_TTY_PGRP
2012 int pgrp
= EMACS_GETPGRP (0);
2015 if (EMACS_GET_TTY_PGRP (0, &tpgrp
) != -1
2018 reset_all_sys_modes ();
2019 if (sig
&& sig
!= SIGTERM
)
2020 fprintf (stderr
, "Fatal error (%d)", sig
);
2025 reset_all_sys_modes ();
2028 stuff_buffered_input (stuff
);
2030 kill_buffer_processes (Qnil
);
2031 Fdo_auto_save (Qt
, Qnil
);
2033 #ifdef CLASH_DETECTION
2034 unlock_all_files ();
2038 kill_vms_processes ();
2041 #if 0 /* This triggers a bug in XCloseDisplay and is not needed. */
2042 #ifdef HAVE_X_WINDOWS
2043 /* It's not safe to call intern here. Maybe we are crashing. */
2044 if (!noninteractive
&& SYMBOLP (Vinitial_window_system
)
2045 && SCHARS (SYMBOL_NAME (Vinitial_window_system
)) == 1
2046 && SREF (SYMBOL_NAME (Vinitial_window_system
), 0) == 'x'
2048 Fx_close_current_connection ();
2049 #endif /* HAVE_X_WINDOWS */
2053 /* There is a tendency for a SIGIO signal to arrive within exit,
2054 and cause a SIGHUP because the input descriptor is already closed. */
2056 signal (SIGIO
, SIG_IGN
);
2063 /* Do this only if terminating normally, we want glyph matrices
2064 etc. in a core dump. */
2065 if (sig
== 0 || sig
== SIGTERM
)
2067 check_glyph_memory ();
2068 check_message_stack ();
2082 DEFUN ("dump-emacs-data", Fdump_emacs_data
, Sdump_emacs_data
, 1, 1, 0,
2083 doc
: /* Dump current state of Emacs into data file FILENAME.
2084 This function exists on systems that use HAVE_SHM. */)
2086 Lisp_Object filename
;
2088 extern char my_edata
[];
2092 CHECK_STRING (filename
);
2093 filename
= Fexpand_file_name (filename
, Qnil
);
2096 Vpurify_flag
= Qnil
;
2099 /* Tell malloc where start of impure now is. */
2100 /* Also arrange for warnings when nearly out of space. */
2101 #ifndef SYSTEM_MALLOC
2102 memory_warnings (my_edata
, malloc_warning
);
2104 map_out_data (SDATA (filename
));
2111 #else /* not HAVE_SHM */
2113 DEFUN ("dump-emacs", Fdump_emacs
, Sdump_emacs
, 2, 2, 0,
2114 doc
: /* Dump current state of Emacs into executable file FILENAME.
2115 Take symbols from SYMFILE (presumably the file you executed to run Emacs).
2116 This is used in the file `loadup.el' when building Emacs.
2118 You must run Emacs in batch mode in order to dump it. */)
2120 Lisp_Object filename
, symfile
;
2122 extern char my_edata
[];
2125 int count
= SPECPDL_INDEX ();
2129 if (! noninteractive
)
2130 error ("Dumping Emacs works only in batch mode");
2132 /* Bind `command-line-processed' to nil before dumping,
2133 so that the dumped Emacs will process its command line
2134 and set up to work with X windows if appropriate. */
2135 symbol
= intern ("command-line-processed");
2136 specbind (symbol
, Qnil
);
2138 CHECK_STRING (filename
);
2139 filename
= Fexpand_file_name (filename
, Qnil
);
2140 if (!NILP (symfile
))
2142 CHECK_STRING (symfile
);
2143 if (SCHARS (symfile
))
2144 symfile
= Fexpand_file_name (symfile
, Qnil
);
2148 Vpurify_flag
= Qnil
;
2151 set_time_zone_rule (dump_tz
);
2152 #ifndef LOCALTIME_CACHE
2153 /* Force a tz reload, since set_time_zone_rule doesn't. */
2160 mapout_data (SDATA (filename
));
2162 /* Tell malloc where start of impure now is. */
2163 /* Also arrange for warnings when nearly out of space. */
2164 #ifndef SYSTEM_MALLOC
2166 /* On Windows, this was done before dumping, and that once suffices.
2167 Meanwhile, my_edata is not valid on Windows. */
2168 memory_warnings (my_edata
, malloc_warning
);
2169 #endif /* not WINDOWSNT */
2171 #ifdef DOUG_LEA_MALLOC
2172 malloc_state_ptr
= malloc_get_state ();
2175 #ifdef USE_MMAP_FOR_BUFFERS
2178 unexec (SDATA (filename
),
2179 !NILP (symfile
) ? SDATA (symfile
) : 0, my_edata
, 0, 0);
2180 #ifdef USE_MMAP_FOR_BUFFERS
2183 #ifdef DOUG_LEA_MALLOC
2184 free (malloc_state_ptr
);
2186 #endif /* not VMS */
2190 return unbind_to (count
, Qnil
);
2193 #endif /* not HAVE_SHM */
2195 #endif /* not CANNOT_DUMP */
2198 /* Recover from setlocale (LC_ALL, ""). */
2202 /* The Emacs Lisp reader needs LC_NUMERIC to be "C",
2203 so that numbers are read and printed properly for Emacs Lisp. */
2204 setlocale (LC_NUMERIC
, "C");
2207 /* Set system locale CATEGORY, with previous locale *PLOCALE, to
2210 synchronize_locale (category
, plocale
, desired_locale
)
2212 Lisp_Object
*plocale
;
2213 Lisp_Object desired_locale
;
2215 if (! EQ (*plocale
, desired_locale
))
2217 *plocale
= desired_locale
;
2218 setlocale (category
, (STRINGP (desired_locale
)
2219 ? (char *)(SDATA (desired_locale
))
2224 /* Set system time locale to match Vsystem_time_locale, if possible. */
2226 synchronize_system_time_locale ()
2228 synchronize_locale (LC_TIME
, &Vprevious_system_time_locale
,
2229 Vsystem_time_locale
);
2232 /* Set system messages locale to match Vsystem_messages_locale, if
2235 synchronize_system_messages_locale ()
2238 synchronize_locale (LC_MESSAGES
, &Vprevious_system_messages_locale
,
2239 Vsystem_messages_locale
);
2242 #endif /* HAVE_SETLOCALE */
2249 decode_env_path (evarname
, defalt
)
2250 char *evarname
, *defalt
;
2252 register char *path
, *p
;
2253 Lisp_Object lpath
, element
, tem
;
2255 /* It's okay to use getenv here, because this function is only used
2256 to initialize variables when Emacs starts up, and isn't called
2259 path
= (char *) getenv (evarname
);
2265 /* Ensure values from the environment use the proper directory separator. */
2268 p
= alloca (strlen (path
) + 1);
2272 if ('/' == DIRECTORY_SEP
)
2273 dostounix_filename (path
);
2275 unixtodos_filename (path
);
2281 p
= index (path
, SEPCHAR
);
2282 if (!p
) p
= path
+ strlen (path
);
2283 element
= (p
- path
? make_string (path
, p
- path
)
2284 : build_string ("."));
2286 /* Add /: to the front of the name
2287 if it would otherwise be treated as magic. */
2288 tem
= Ffind_file_name_handler (element
, Qt
);
2290 /* However, if the handler says "I'm safe",
2291 don't bother adding /:. */
2295 prop
= Fget (tem
, intern ("safe-magic"));
2301 element
= concat2 (build_string ("/:"), element
);
2303 lpath
= Fcons (element
, lpath
);
2309 return Fnreverse (lpath
);
2315 Qfile_name_handler_alist
= intern ("file-name-handler-alist");
2316 staticpro (&Qfile_name_handler_alist
);
2320 defsubr (&Sdump_emacs_data
);
2322 defsubr (&Sdump_emacs
);
2326 defsubr (&Skill_emacs
);
2328 defsubr (&Sinvocation_name
);
2329 defsubr (&Sinvocation_directory
);
2331 DEFVAR_LISP ("command-line-args", &Vcommand_line_args
,
2332 doc
: /* Args passed by shell to Emacs, as a list of strings.
2333 Many arguments are deleted from the list as they are processed. */);
2335 DEFVAR_LISP ("system-type", &Vsystem_type
,
2336 doc
: /* Value is symbol indicating type of operating system you are using. */);
2337 Vsystem_type
= intern (SYSTEM_TYPE
);
2339 DEFVAR_LISP ("system-configuration", &Vsystem_configuration
,
2340 doc
: /* Value is string indicating configuration Emacs was built for.
2341 On MS-Windows, the value reflects the OS flavor and version on which
2342 Emacs is running. */);
2343 Vsystem_configuration
= build_string (EMACS_CONFIGURATION
);
2345 DEFVAR_LISP ("system-configuration-options", &Vsystem_configuration_options
,
2346 doc
: /* String containing the configuration options Emacs was built with. */);
2347 Vsystem_configuration_options
= build_string (EMACS_CONFIG_OPTIONS
);
2349 DEFVAR_BOOL ("noninteractive", &noninteractive1
,
2350 doc
: /* Non-nil means Emacs is running without interactive terminal. */);
2352 DEFVAR_LISP ("kill-emacs-hook", &Vkill_emacs_hook
,
2353 doc
: /* Hook to be run when kill-emacs is called.
2354 Since `kill-emacs' may be invoked when the terminal is disconnected (or
2355 in other similar situations), functions placed on this hook should not
2356 expect to be able to interact with the user. To ask for confirmation,
2357 see `kill-emacs-query-functions' instead.
2359 The hook is not run in batch mode, i.e., if `noninteractive' is non-nil. */);
2360 Vkill_emacs_hook
= Qnil
;
2362 empty_string
= build_string ("");
2363 staticpro (&empty_string
);
2365 DEFVAR_INT ("emacs-priority", &emacs_priority
,
2366 doc
: /* Priority for Emacs to run at.
2367 This value is effective only if set before Emacs is dumped,
2368 and only if the Emacs executable is installed with setuid to permit
2369 it to change priority. (Emacs sets its uid back to the real uid.)
2370 Currently, you need to define SET_EMACS_PRIORITY in `config.h'
2371 before you compile Emacs, to enable the code for this feature. */);
2374 DEFVAR_LISP ("path-separator", &Vpath_separator
,
2375 doc
: /* The directory separator in search paths, as a string. */);
2378 Vpath_separator
= make_string (&c
, 1);
2381 DEFVAR_LISP ("invocation-name", &Vinvocation_name
,
2382 doc
: /* The program name that was used to run Emacs.
2383 Any directory names are omitted. */);
2385 DEFVAR_LISP ("invocation-directory", &Vinvocation_directory
,
2386 doc
: /* The directory in which the Emacs executable was found, to run it.
2387 The value is nil if that directory's name is not known. */);
2389 DEFVAR_LISP ("installation-directory", &Vinstallation_directory
,
2390 doc
: /* A directory within which to look for the `lib-src' and `etc' directories.
2391 This is non-nil when we can't find those directories in their standard
2392 installed locations, but we can find them
2393 near where the Emacs executable was found. */);
2394 Vinstallation_directory
= Qnil
;
2396 DEFVAR_LISP ("system-messages-locale", &Vsystem_messages_locale
,
2397 doc
: /* System locale for messages. */);
2398 Vsystem_messages_locale
= Qnil
;
2400 DEFVAR_LISP ("previous-system-messages-locale",
2401 &Vprevious_system_messages_locale
,
2402 doc
: /* Most recently used system locale for messages. */);
2403 Vprevious_system_messages_locale
= Qnil
;
2405 DEFVAR_LISP ("system-time-locale", &Vsystem_time_locale
,
2406 doc
: /* System locale for time. */);
2407 Vsystem_time_locale
= Qnil
;
2409 DEFVAR_LISP ("previous-system-time-locale", &Vprevious_system_time_locale
,
2410 doc
: /* Most recently used system locale for time. */);
2411 Vprevious_system_time_locale
= Qnil
;
2414 /* arch-tag: 7bfd356a-c720-4612-8ab6-aa4222931c2e
2415 (do not change this comment) */