1 /* Fully extensible Emacs, running on Unix, intended for GNU.
2 Copyright (C) 1985, 1986, 1987, 1993, 1994, 1995, 1997, 1998, 1999,
3 2001, 2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009,
4 2010 Free Software Foundation, Inc.
6 This file is part of GNU Emacs.
8 GNU Emacs is free software: you can redistribute it and/or modify
9 it under the terms of the GNU General Public License as published by
10 the Free Software Foundation, either version 3 of the License, or
11 (at your option) any later version.
13 GNU Emacs is distributed in the hope that it will be useful,
14 but WITHOUT ANY WARRANTY; without even the implied warranty of
15 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
16 GNU General Public License for more details.
18 You should have received a copy of the GNU General Public License
19 along with GNU Emacs. If not, see <http://www.gnu.org/licenses/>. */
27 #include <sys/types.h>
35 #ifdef HAVE_SYS_IOCTL_H
36 #include <sys/ioctl.h>
41 #include <windows.h> /* just for w32.h */
43 #include "w32heap.h" /* for prototype of sbrk */
46 #ifdef NS_IMPL_GNUSTEP
47 /* At least under Debian, GSConfig is in a subdirectory. --Stef */
48 #include <GNUstepBase/GSConfig.h>
53 #include "intervals.h"
58 #include "blockinput.h"
59 #include "syssignal.h"
62 #include "termhooks.h"
76 #include <sys/resource.h>
79 #ifdef HAVE_PERSONALITY_LINUX32
80 #include <sys/personality.h>
90 #define setpgrp setpgid
94 static const char emacs_copyright
[] = "Copyright (C) 2010 Free Software Foundation, Inc.";
95 static const char emacs_version
[] = "24.0.50";
97 /* Make these values available in GDB, which doesn't see macros. */
104 #ifndef USE_LISP_UNION_TYPE
105 int gdb_use_union
= 0;
107 int gdb_use_union
= 1;
109 EMACS_INT gdb_valbits
= VALBITS
;
110 EMACS_INT gdb_gctypebits
= GCTYPEBITS
;
111 #if defined (DATA_SEG_BITS) && ! defined (USE_LSB_TAG)
112 EMACS_INT gdb_data_seg_bits
= DATA_SEG_BITS
;
114 EMACS_INT gdb_data_seg_bits
= 0;
116 EMACS_INT PVEC_FLAG
= PSEUDOVECTOR_FLAG
;
117 EMACS_INT gdb_array_mark_flag
= ARRAY_MARK_FLAG
;
118 /* GDB might say "No enum type named pvec_type" if we don't have at
119 least one symbol with that type, and then xbacktrace could fail. */
120 enum pvec_type gdb_pvec_type
= PVEC_TYPE_MASK
;
122 /* Command line args from shell, as list of strings. */
123 Lisp_Object Vcommand_line_args
;
125 /* The name under which Emacs was invoked, with any leading directory
127 Lisp_Object Vinvocation_name
;
129 /* The directory name from which Emacs was invoked. */
130 Lisp_Object Vinvocation_directory
;
132 /* The directory name in which to find subdirs such as lisp and etc.
133 nil means get them only from PATH_LOADSEARCH. */
134 Lisp_Object Vinstallation_directory
;
136 /* The values of `current-time' before and after Emacs initialization. */
137 Lisp_Object Vbefore_init_time
, Vafter_init_time
;
139 /* Hook run by `kill-emacs' before it does really anything. */
140 Lisp_Object Vkill_emacs_hook
;
142 /* Empty lisp strings. To avoid having to build any others. */
143 Lisp_Object empty_unibyte_string
, empty_multibyte_string
;
145 /* Search path separator. */
146 Lisp_Object Vpath_separator
;
148 /* Set nonzero after Emacs has started up the first time.
149 Prevents reinitialization of the Lisp world and keymaps
150 on subsequent starts. */
153 #ifdef DOUG_LEA_MALLOC
154 /* Preserves a pointer to the memory allocated that copies that
155 static data inside glibc's malloc. */
156 void *malloc_state_ptr
;
157 /* From glibc, a routine that returns a copy of the malloc internal state. */
158 extern void *malloc_get_state (void);
159 /* From glibc, a routine that overwrites the malloc internal state. */
160 extern int malloc_set_state (void*);
161 /* Non-zero if the MALLOC_CHECK_ environment variable was set while
162 dumping. Used to work around a bug in glibc's malloc. */
163 int malloc_using_checking
;
166 /* Variable whose value is symbol giving operating system type. */
167 Lisp_Object Vsystem_type
;
169 /* Variable whose value is string giving configuration built for. */
170 Lisp_Object Vsystem_configuration
;
172 /* Variable whose value is string giving configuration options,
173 for use when reporting bugs. */
174 Lisp_Object Vsystem_configuration_options
;
176 Lisp_Object Qfile_name_handler_alist
;
178 /* Current and previous system locales for messages and time. */
179 Lisp_Object Vsystem_messages_locale
;
180 Lisp_Object Vprevious_system_messages_locale
;
181 Lisp_Object Vsystem_time_locale
;
182 Lisp_Object Vprevious_system_time_locale
;
184 /* Copyright and version info. The version number may be updated by
186 Lisp_Object Vemacs_copyright
, Vemacs_version
;
188 /* If non-zero, emacs should not attempt to use a window-specific code,
189 but instead should use the virtual terminal under which it was started. */
190 int inhibit_window_system
;
192 /* If nonzero, set Emacs to run at this priority. This is also used
193 in child_setup and sys_suspend to make sure subshells run at normal
194 priority; those functions have their own extern declaration. */
195 EMACS_INT emacs_priority
;
197 /* If non-zero, a filter or a sentinel is running. Tested to save the match
198 data on the first attempt to change it inside asynchronous code. */
199 int running_asynch_code
;
201 #if defined(HAVE_X_WINDOWS) || defined(HAVE_NS)
202 /* If non-zero, -d was specified, meaning we're using some window system. */
206 /* An address near the bottom of the stack.
207 Tells GC how to save a copy of the stack. */
210 /* The address where the heap starts (from the first sbrk (0) call). */
211 static void *my_heap_start
;
213 /* The gap between BSS end and heap start as far as we can tell. */
214 static unsigned long heap_bss_diff
;
216 /* If the gap between BSS end and heap start is larger than this
217 output a warning in dump-emacs. */
218 #define MAX_HEAP_BSS_DIFF (1024*1024)
220 /* Nonzero means running Emacs without interactive terminal. */
224 /* Value of Lisp variable `noninteractive'.
225 Normally same as C variable `noninteractive'
226 but nothing terrible happens if user sets this one. */
230 /* Nonzero means Emacs was run in --quick mode. */
231 int inhibit_x_resources
;
233 /* Name for the server started by the daemon.*/
234 static char *daemon_name
;
236 /* Pipe used to send exit notification to the daemon parent at
240 /* Save argv and argc. */
244 static void sort_args (int argc
, char **argv
);
245 void syms_of_emacs (void);
247 /* MSVC needs each string be shorter than 2048 bytes, so the usage
248 strings below are split to not overflow this limit. */
250 Usage: %s [OPTION-OR-FILENAME]...\n\
252 Run Emacs, the extensible, customizable, self-documenting real-time\n\
253 display editor. The recommended way to start Emacs for normal editing\n\
254 is with no options at all.\n\
256 Run M-x info RET m emacs RET m emacs invocation RET inside Emacs to\n\
257 read the main documentation for these command-line arguments.\n\
259 Initialization options:\n\
261 --batch do not do interactive display; implies -q\n\
262 --chdir DIR change to directory DIR\n\
263 --daemon start a server in the background\n\
264 --debug-init enable Emacs Lisp debugger for init file\n\
265 --display, -d DISPLAY use X server DISPLAY\n\
266 --no-desktop do not load a saved desktop\n\
267 --no-init-file, -q load neither ~/.emacs nor default.el\n\
268 --no-shared-memory, -nl do not use shared memory\n\
269 --no-site-file do not load site-start.el\n\
270 --no-splash do not display a splash screen on startup\n\
271 --no-window-system, -nw do not communicate with X, ignoring $DISPLAY\n\
272 --quick, -Q equivalent to -q --no-site-file --no-splash\n\
273 --script FILE run FILE as an Emacs Lisp script\n\
274 --terminal, -t DEVICE use DEVICE for terminal I/O\n\
275 --user, -u USER load ~USER/.emacs instead of your own\n\
281 FILE visit FILE using find-file\n\
282 +LINE go to line LINE in next FILE\n\
283 +LINE:COLUMN go to line LINE, column COLUMN, in next FILE\n\
284 --directory, -L DIR add DIR to variable load-path\n\
285 --eval EXPR evaluate Emacs Lisp expression EXPR\n\
286 --execute EXPR evaluate Emacs Lisp expression EXPR\n\
287 --file FILE visit FILE using find-file\n\
288 --find-file FILE visit FILE using find-file\n\
289 --funcall, -f FUNC call Emacs Lisp function FUNC with no arguments\n\
290 --insert FILE insert contents of FILE into current buffer\n\
291 --kill exit without asking for confirmation\n\
292 --load, -l FILE load Emacs Lisp FILE using the load function\n\
293 --visit FILE visit FILE using find-file\n\
299 --background-color, -bg COLOR window background color\n\
300 --basic-display, -D disable many display features;\n\
301 used for debugging Emacs\n\
302 --border-color, -bd COLOR main border color\n\
303 --border-width, -bw WIDTH width of main border\n\
304 --color, --color=MODE override color mode for character terminals;\n\
305 MODE defaults to `auto', and can also\n\
306 be `never', `auto', `always',\n\
307 or a mode name like `ansi8'\n\
308 --cursor-color, -cr COLOR color of the Emacs cursor indicating point\n\
309 --font, -fn FONT default font; must be fixed-width\n\
310 --foreground-color, -fg COLOR window foreground color\n\
311 --fullheight, -fh make the first frame high as the screen\n\
312 --fullscreen, -fs make first frame fullscreen\n\
313 --fullwidth, -fw make the first frame wide as the screen\n\
314 --maximized, -mm make the first frame maximized\n\
315 --geometry, -g GEOMETRY window geometry\n\
316 --no-bitmap-icon, -nbi do not use picture of gnu for Emacs icon\n\
317 --iconic start Emacs in iconified state\n\
318 --internal-border, -ib WIDTH width between text and main border\n\
319 --line-spacing, -lsp PIXELS additional space to put between lines\n\
320 --mouse-color, -ms COLOR mouse cursor color in Emacs window\n\
321 --name NAME title for initial Emacs frame\n\
322 --no-blinking-cursor, -nbc disable blinking cursor\n\
323 --reverse-video, -r, -rv switch foreground and background\n\
324 --title, -T TITLE title for initial Emacs frame\n\
325 --vertical-scroll-bars, -vb enable vertical scroll bars\n\
326 --xrm XRESOURCES set additional X resources\n\
327 --parent-id XID set parent window\n\
328 --help display this help and exit\n\
329 --version output version information and exit\n\
333 You can generally also specify long option names with a single -; for\n\
334 example, -batch as well as --batch. You can use any unambiguous\n\
335 abbreviation for a --option.\n\
337 Various environment variables and window system resources also affect\n\
338 Emacs' operation. See the main documentation.\n\
340 Report bugs to bug-gnu-emacs@gnu.org. First, please see the Bugs\n\
341 section of the Emacs manual or the file BUGS.\n"
344 /* Signal code for the fatal signal that was received. */
345 int fatal_error_code
;
347 /* Nonzero if handling a fatal error already. */
348 int fatal_error_in_progress
;
350 /* If non-null, call this function from fatal_error_signal before
351 committing suicide. */
353 void (*fatal_error_signal_hook
) (void);
355 #ifdef FORWARD_SIGNAL_TO_MAIN_THREAD
356 /* When compiled with GTK and running under Gnome,
357 multiple threads may be created. Keep track of our main
358 thread to make sure signals are delivered to it (see syssignal.h). */
360 pthread_t main_thread
;
364 /* Handle bus errors, invalid instruction, etc. */
366 fatal_error_signal (int sig
)
368 SIGNAL_THREAD_CHECK (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 if (sig
== SIGTERM
|| sig
== SIGHUP
)
380 Fkill_emacs (make_number (sig
));
382 shut_down_emacs (sig
, 0, Qnil
);
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
);
401 /* Handler for SIGDANGER. */
403 memory_warning_signal (sig
)
406 signal (sig
, memory_warning_signal
);
407 SIGNAL_THREAD_CHECK (sig
);
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)
425 kill (getpid (), SIGABRT
);
426 /* This shouldn't be executed, but it prevents a warning. */
432 /* Code for dealing with Lisp access to the Unix command line. */
435 init_cmdargs (int argc
, char **argv
, int skip_args
)
438 Lisp_Object name
, dir
, tem
;
439 int count
= SPECPDL_INDEX ();
440 Lisp_Object raw_name
;
445 raw_name
= build_string (argv
[0]);
447 /* Add /: to the front of the name
448 if it would otherwise be treated as magic. */
449 tem
= Ffind_file_name_handler (raw_name
, Qt
);
451 raw_name
= concat2 (build_string ("/:"), raw_name
);
453 Vinvocation_name
= Ffile_name_nondirectory (raw_name
);
454 Vinvocation_directory
= Ffile_name_directory (raw_name
);
456 /* If we got no directory in argv[0], search PATH to find where
457 Emacs actually came from. */
458 if (NILP (Vinvocation_directory
))
461 int yes
= openp (Vexec_path
, Vinvocation_name
,
462 Vexec_suffixes
, &found
, make_number (X_OK
));
465 /* Add /: to the front of the name
466 if it would otherwise be treated as magic. */
467 tem
= Ffind_file_name_handler (found
, Qt
);
469 found
= concat2 (build_string ("/:"), found
);
470 Vinvocation_directory
= Ffile_name_directory (found
);
474 if (!NILP (Vinvocation_directory
)
475 && NILP (Ffile_name_absolute_p (Vinvocation_directory
)))
476 /* Emacs was started with relative path, like ./emacs.
478 Vinvocation_directory
= Fexpand_file_name (Vinvocation_directory
, Qnil
);
480 Vinstallation_directory
= Qnil
;
482 if (!NILP (Vinvocation_directory
))
484 dir
= Vinvocation_directory
;
485 name
= Fexpand_file_name (Vinvocation_name
, dir
);
488 Lisp_Object tem
, lib_src_exists
;
489 Lisp_Object etc_exists
, info_exists
;
491 /* See if dir contains subdirs for use by Emacs.
492 Check for the ones that would exist in a build directory,
493 not including lisp and info. */
494 tem
= Fexpand_file_name (build_string ("lib-src"), dir
);
495 lib_src_exists
= Ffile_exists_p (tem
);
498 /* MSDOS installations frequently remove lib-src, but we still
499 must set installation-directory, or else info won't find
500 its files (it uses the value of installation-directory). */
501 tem
= Fexpand_file_name (build_string ("info"), dir
);
502 info_exists
= Ffile_exists_p (tem
);
507 if (!NILP (lib_src_exists
) || !NILP (info_exists
))
509 tem
= Fexpand_file_name (build_string ("etc"), dir
);
510 etc_exists
= Ffile_exists_p (tem
);
511 if (!NILP (etc_exists
))
513 Vinstallation_directory
514 = Ffile_name_as_directory (dir
);
519 /* See if dir's parent contains those subdirs. */
520 tem
= Fexpand_file_name (build_string ("../lib-src"), dir
);
521 lib_src_exists
= Ffile_exists_p (tem
);
525 /* See the MSDOS commentary above. */
526 tem
= Fexpand_file_name (build_string ("../info"), dir
);
527 info_exists
= Ffile_exists_p (tem
);
532 if (!NILP (lib_src_exists
) || !NILP (info_exists
))
534 tem
= Fexpand_file_name (build_string ("../etc"), dir
);
535 etc_exists
= Ffile_exists_p (tem
);
536 if (!NILP (etc_exists
))
538 tem
= Fexpand_file_name (build_string (".."), dir
);
539 Vinstallation_directory
540 = Ffile_name_as_directory (tem
);
545 /* If the Emacs executable is actually a link,
546 next try the dir that the link points into. */
547 tem
= Ffile_symlink_p (name
);
550 name
= Fexpand_file_name (tem
, dir
);
551 dir
= Ffile_name_directory (name
);
558 Vcommand_line_args
= Qnil
;
560 for (i
= argc
- 1; i
>= 0; i
--)
562 if (i
== 0 || i
> skip_args
)
563 /* For the moment, we keep arguments as is in unibyte strings.
564 They are decoded in the function command-line after we know
565 locale-coding-system. */
567 = Fcons (make_unibyte_string (argv
[i
], strlen (argv
[i
])),
571 unbind_to (count
, Qnil
);
574 DEFUN ("invocation-name", Finvocation_name
, Sinvocation_name
, 0, 0, 0,
575 doc
: /* Return the program name that was used to run Emacs.
576 Any directory names are omitted. */)
579 return Fcopy_sequence (Vinvocation_name
);
582 DEFUN ("invocation-directory", Finvocation_directory
, Sinvocation_directory
,
584 doc
: /* Return the directory name in which the Emacs executable was located. */)
587 return Fcopy_sequence (Vinvocation_directory
);
592 /* A valid but unlikely value for the TZ environment value.
593 It is OK (though a bit slower) if the user actually chooses this value. */
594 static char dump_tz
[] = "UtC0";
597 #ifndef ORDINARY_LINK
598 /* We don't include crtbegin.o and crtend.o in the link,
599 so these functions and variables might be missed.
600 Provide dummy definitions to avoid error.
601 (We don't have any real constructors or destructors.) */
603 #ifndef GCC_CTORS_IN_LIBC
604 void __do_global_ctors (void)
606 void __do_global_ctors_aux (void)
608 void __do_global_dtors (void)
610 /* GNU/Linux has a bug in its library; avoid an error. */
612 char * __CTOR_LIST__
[2] = { (char *) (-1), 0 };
614 char * __DTOR_LIST__
[2] = { (char *) (-1), 0 };
615 #endif /* GCC_CTORS_IN_LIBC */
618 #endif /* __GNUC__ */
619 #endif /* ORDINARY_LINK */
621 /* Test whether the next argument in ARGV matches SSTR or a prefix of
622 LSTR (at least MINLEN characters). If so, then if VALPTR is non-null
623 (the argument is supposed to have a value) store in *VALPTR either
624 the next argument or the portion of this one after the equal sign.
625 ARGV is read starting at position *SKIPPTR; this index is advanced
626 by the number of arguments used.
628 Too bad we can't just use getopt for all of this, but we don't have
629 enough information to do it right. */
632 argmatch (char **argv
, int argc
, char *sstr
, char *lstr
, int minlen
, char **valptr
, int *skipptr
)
638 /* Don't access argv[argc]; give up in advance. */
639 if (argc
<= *skipptr
+ 1)
642 arg
= argv
[*skipptr
+1];
645 if (strcmp (arg
, sstr
) == 0)
649 *valptr
= argv
[*skipptr
+2];
656 arglen
= (valptr
!= NULL
&& (p
= strchr (arg
, '=')) != NULL
657 ? p
- arg
: strlen (arg
));
658 if (lstr
== 0 || arglen
< minlen
|| strncmp (arg
, lstr
, arglen
) != 0)
660 else if (valptr
== NULL
)
671 else if (argv
[*skipptr
+2] != NULL
)
673 *valptr
= argv
[*skipptr
+2];
683 #ifdef DOUG_LEA_MALLOC
685 /* malloc can be invoked even before main (e.g. by the dynamic
686 linker), so the dumped malloc state must be restored as early as
687 possible using this special hook. */
690 malloc_initialize_hook (void)
693 extern char **environ
;
698 if (!malloc_using_checking
)
699 /* Work around a bug in glibc's malloc. MALLOC_CHECK_ must be
700 ignored if the heap to be restored was constructed without
701 malloc checking. Can't use unsetenv, since that calls malloc. */
705 for (p
= environ
; p
&& *p
; p
++)
706 if (strncmp (*p
, "MALLOC_CHECK_=", 14) == 0)
715 malloc_set_state (malloc_state_ptr
);
716 #ifndef XMALLOC_OVERRUN_CHECK
717 free (malloc_state_ptr
);
722 if (my_heap_start
== 0)
723 my_heap_start
= sbrk (0);
724 malloc_using_checking
= getenv ("MALLOC_CHECK_") != NULL
;
728 void (*__malloc_initialize_hook
) (void) = malloc_initialize_hook
;
730 #endif /* DOUG_LEA_MALLOC */
735 main (int argc
, char **argv
)
740 char stack_bottom_variable
;
741 int do_initial_setlocale
;
743 #ifdef HAVE_SETRLIMIT
758 #if defined (USE_GTK) && defined (G_SLICE_ALWAYS_MALLOC)
759 /* This is used by the Cygwin build. */
760 setenv ("G_SLICE", "always-malloc", 1);
765 extern char my_endbss
[];
766 extern char *my_endbss_static
;
768 if (my_heap_start
== 0)
769 my_heap_start
= sbrk (0);
771 heap_bss_diff
= (char *)my_heap_start
- max (my_endbss
, my_endbss_static
);
774 #ifdef RUN_TIME_REMAP
776 run_time_remap (argv
[0]);
779 /* If using unexmacosx.c (set by s/darwin.h), we must do this. */
782 unexec_init_emacs_zone ();
785 sort_args (argc
, argv
);
787 while (argv
[argc
]) argc
++;
789 if (argmatch (argv
, argc
, "-version", "--version", 3, NULL
, &skip_args
))
791 const char *version
, *copyright
;
794 Lisp_Object tem
, tem2
;
795 tem
= Fsymbol_value (intern_c_string ("emacs-version"));
796 tem2
= Fsymbol_value (intern_c_string ("emacs-copyright"));
799 fprintf (stderr
, "Invalid value of `emacs-version'\n");
804 fprintf (stderr
, "Invalid value of `emacs-copyright'\n");
809 version
= SDATA (tem
);
810 copyright
= SDATA (tem2
);
815 version
= emacs_version
;
816 copyright
= emacs_copyright
;
818 printf ("GNU Emacs %s\n", version
);
819 printf ("%s\n", copyright
);
820 printf ("GNU Emacs comes with ABSOLUTELY NO WARRANTY.\n");
821 printf ("You may redistribute copies of Emacs\n");
822 printf ("under the terms of the GNU General Public License.\n");
823 printf ("For more information about these matters, ");
824 printf ("see the file named COPYING.\n");
827 if (argmatch (argv
, argc
, "-chdir", "--chdir", 2, &ch_to_dir
, &skip_args
))
828 if (chdir (ch_to_dir
) == -1)
830 fprintf (stderr
, "%s: Can't chdir to %s: %s\n",
831 argv
[0], ch_to_dir
, strerror (errno
));
836 #ifdef HAVE_PERSONALITY_LINUX32
838 && (strcmp (argv
[argc
-1], "dump") == 0
839 || strcmp (argv
[argc
-1], "bootstrap") == 0)
840 && ! getenv ("EMACS_HEAP_EXEC"))
842 /* Set this so we only do this once. */
843 putenv("EMACS_HEAP_EXEC=true");
845 /* A flag to turn off address randomization which is introduced
846 in linux kernel shipped with fedora core 4 */
847 #define ADD_NO_RANDOMIZE 0x0040000
848 personality (PER_LINUX32
| ADD_NO_RANDOMIZE
);
849 #undef ADD_NO_RANDOMIZE
851 execvp (argv
[0], argv
);
853 /* If the exec fails, try to dump anyway. */
856 #endif /* HAVE_PERSONALITY_LINUX32 */
858 #if defined (HAVE_SETRLIMIT) && defined (RLIMIT_STACK)
859 /* Extend the stack space available.
860 Don't do that if dumping, since some systems (e.g. DJGPP)
861 might define a smaller stack limit at that time. */
864 && (!noninteractive
|| initialized
)
866 && !getrlimit (RLIMIT_STACK
, &rlim
))
869 extern size_t re_max_failures
;
870 /* Approximate the amount regex.c needs per unit of re_max_failures. */
871 int ratio
= 20 * sizeof (char *);
872 /* Then add 33% to cover the size of the smaller stacks that regex.c
873 successively allocates and discards, on its way to the maximum. */
875 /* Add in some extra to cover
876 what we're likely to use for other reasons. */
877 newlim
= re_max_failures
* ratio
+ 200000;
879 /* NetBSD (at least NetBSD 1.2G and former) has a bug in its
880 stack allocation routine for new process that the allocation
881 fails if stack limit is not on page boundary. So, round up the
882 new limit to page boundary. */
883 newlim
= (newlim
+ getpagesize () - 1) / getpagesize () * getpagesize();
885 if (newlim
> rlim
.rlim_max
)
887 newlim
= rlim
.rlim_max
;
888 /* Don't let regex.c overflow the stack we have. */
889 re_max_failures
= (newlim
- 200000) / ratio
;
891 if (rlim
.rlim_cur
< newlim
)
892 rlim
.rlim_cur
= newlim
;
894 setrlimit (RLIMIT_STACK
, &rlim
);
896 #endif /* HAVE_SETRLIMIT and RLIMIT_STACK */
898 /* Record (approximately) where the stack begins. */
899 stack_bottom
= &stack_bottom_variable
;
903 #ifndef SYSTEM_MALLOC
904 /* Arrange to get warning messages as memory fills up. */
905 memory_warnings (0, malloc_warning
);
907 /* Call malloc at least once, to run the initial __malloc_hook.
908 Also call realloc and free for consistency. */
909 free (realloc (malloc (4), 4));
912 /* Arrange to disable interrupt input inside malloc etc. */
913 uninterrupt_malloc ();
914 # endif /* not SYNC_INPUT */
915 #endif /* not SYSTEM_MALLOC */
917 #ifdef FORWARD_SIGNAL_TO_MAIN_THREAD
918 main_thread
= pthread_self ();
919 #endif /* FORWARD_SIGNAL_TO_MAIN_THREAD */
921 #if defined (MSDOS) || defined (WINDOWSNT)
922 /* We do all file input/output as binary files. When we need to translate
923 newlines, we do that manually. */
925 #endif /* MSDOS || WINDOWSNT */
928 if (!isatty (fileno (stdin
)))
929 setmode (fileno (stdin
), O_BINARY
);
930 if (!isatty (fileno (stdout
)))
933 setmode (fileno (stdout
), O_BINARY
);
937 /* Skip initial setlocale if LC_ALL is "C", as it's not needed in that case.
938 The build procedure uses this while dumping, to ensure that the
939 dumped Emacs does not have its system locale tables initialized,
940 as that might cause screwups when the dumped Emacs starts up. */
942 char *lc_all
= getenv ("LC_ALL");
943 do_initial_setlocale
= ! lc_all
|| strcmp (lc_all
, "C");
946 /* Set locale now, so that initial error messages are localized properly.
947 fixup_locale must wait until later, since it builds strings. */
948 if (do_initial_setlocale
)
949 setlocale (LC_ALL
, "");
951 inhibit_window_system
= 0;
953 /* Handle the -t switch, which specifies filename to use as terminal. */
957 if (argmatch (argv
, argc
, "-t", "--terminal", 4, &term
, &skip_args
))
962 result
= emacs_open (term
, O_RDWR
, 0);
965 char *errstring
= strerror (errno
);
966 fprintf (stderr
, "%s: %s: %s\n", argv
[0], term
, errstring
);
972 fprintf (stderr
, "%s: %s: not a tty\n", argv
[0], term
);
975 fprintf (stderr
, "Using %s\n", term
);
976 #ifdef HAVE_WINDOW_SYSTEM
977 inhibit_window_system
= 1; /* -t => -nw */
984 /* Command line option --no-windows is deprecated and thus not mentioned
985 in the manual and usage informations. */
986 if (argmatch (argv
, argc
, "-nw", "--no-window-system", 6, NULL
, &skip_args
)
987 || argmatch (argv
, argc
, "-nw", "--no-windows", 6, NULL
, &skip_args
))
988 inhibit_window_system
= 1;
990 /* Handle the -batch switch, which means don't do interactive display. */
992 if (argmatch (argv
, argc
, "-batch", "--batch", 5, NULL
, &skip_args
))
995 Vundo_outer_limit
= Qnil
;
997 if (argmatch (argv
, argc
, "-script", "--script", 3, &junk
, &skip_args
))
999 noninteractive
= 1; /* Set batch mode. */
1000 /* Convert --script to -scriptload, un-skip it, and sort again
1001 so that it will be handled in proper sequence. */
1002 /* FIXME broken for --script=FILE - is that supposed to work? */
1003 argv
[skip_args
- 1] = "-scriptload";
1005 sort_args (argc
, argv
);
1008 /* Handle the --help option, which gives a usage message. */
1009 if (argmatch (argv
, argc
, "-help", "--help", 3, NULL
, &skip_args
))
1011 printf (USAGE1
, argv
[0], USAGE2
);
1017 if (argmatch (argv
, argc
, "-daemon", "--daemon", 5, NULL
, &skip_args
)
1018 || argmatch (argv
, argc
, "-daemon", "--daemon", 5, &dname_arg
, &skip_args
))
1023 /* Start as a daemon: fork a new child process which will run the
1024 rest of the initialization code, then exit.
1026 Detaching a daemon requires the following steps:
1030 - close the tty file-descriptors
1032 We only want to do the last 2 steps once the daemon is ready to
1033 serve requests, i.e. after loading .emacs (initialization).
1034 OTOH initialization may start subprocesses (e.g. ispell) and these
1035 should be run from the proper process (the one that will end up
1036 running as daemon) and with the proper "session id" in order for
1037 them to keep working after detaching, so fork and setsid need to be
1038 performed before initialization.
1040 We want to avoid exiting before the server socket is ready, so
1041 use a pipe for synchronization. The parent waits for the child
1042 to close its end of the pipe (using `daemon-initialized')
1044 if (pipe (daemon_pipe
) == -1)
1046 fprintf (stderr
, "Cannot pipe!\n");
1050 #ifndef NS_IMPL_COCOA
1052 #else /* NS_IMPL_COCOA */
1053 /* Under Cocoa we must do fork+exec as CoreFoundation lib fails in
1054 forked process: http://developer.apple.com/ReleaseNotes/
1055 CoreFoundation/CoreFoundation.html)
1056 We mark being in the exec'd process by a daemon name argument of
1057 form "--daemon=\nFD0,FD1\nNAME" where FD are the pipe file descriptors,
1058 NAME is the original daemon name, if any. */
1059 if (!dname_arg
|| !strchr (dname_arg
, '\n'))
1060 f
= fork (); /* in orig */
1062 f
= 0; /* in exec'd */
1063 #endif /* NS_IMPL_COCOA */
1069 /* Close unused writing end of the pipe. */
1070 close (daemon_pipe
[1]);
1072 /* Just wait for the child to close its end of the pipe. */
1075 retval
= read (daemon_pipe
[0], &buf
, 1);
1077 while (retval
== -1 && errno
== EINTR
);
1081 fprintf (stderr
, "Error reading status from child\n");
1084 else if (retval
== 0)
1086 fprintf (stderr
, "Error: server did not start correctly\n");
1090 close (daemon_pipe
[0]);
1095 fprintf (stderr
, "Cannot fork!\n");
1099 #ifdef NS_IMPL_COCOA
1101 /* In orig process, forked as child, OR in exec'd. */
1102 if (!dname_arg
|| !strchr (dname_arg
, '\n'))
1103 { /* In orig, child: now exec w/special daemon name. */
1106 if (dname_arg
&& strlen (dname_arg
) > 70)
1108 fprintf (stderr
, "daemon: child name too long\n");
1112 sprintf (fdStr
, "--daemon=\n%d,%d\n%s", daemon_pipe
[0],
1113 daemon_pipe
[1], dname_arg
? dname_arg
: "");
1114 argv
[skip_args
] = fdStr
;
1116 execv (argv
[0], argv
);
1117 fprintf (stderr
, "emacs daemon: exec failed: %d\n", errno
);
1121 /* In exec'd: parse special dname into pipe and name info. */
1122 if (!dname_arg
|| !strchr (dname_arg
, '\n')
1123 || strlen (dname_arg
) < 1 || strlen (dname_arg
) > 70)
1125 fprintf (stderr
, "emacs daemon: daemon name absent or too long\n");
1128 dname_arg2
[0] = '\0';
1129 sscanf (dname_arg
, "\n%d,%d\n%s", &(daemon_pipe
[0]), &(daemon_pipe
[1]),
1131 dname_arg
= strlen (dname_arg2
) ? dname_arg2
: NULL
;
1133 #endif /* NS_IMPL_COCOA */
1136 daemon_name
= xstrdup (dname_arg
);
1137 /* Close unused reading end of the pipe. */
1138 close (daemon_pipe
[0]);
1139 /* Make sure that the used end of the pipe is closed on exec, so
1140 that it is not accessible to programs started from .emacs. */
1141 fcntl (daemon_pipe
[1], F_SETFD
, FD_CLOEXEC
);
1147 fprintf (stderr
, "This platform does not support the -daemon flag.\n");
1152 if (! noninteractive
)
1154 #if defined (USG5) && defined (INTERRUPT_INPUT)
1157 #if defined (HAVE_GTK_AND_PTHREAD) && !defined (SYSTEM_MALLOC) && !defined (DOUG_LEA_MALLOC)
1159 extern void malloc_enable_thread (void);
1161 malloc_enable_thread ();
1168 /* Don't catch SIGHUP if dumping. */
1175 sigblock (sigmask (SIGHUP
));
1176 /* In --batch mode, don't catch SIGHUP if already ignored.
1177 That makes nohup work. */
1178 if (! noninteractive
1179 || signal (SIGHUP
, SIG_IGN
) != SIG_IGN
)
1180 signal (SIGHUP
, fatal_error_signal
);
1181 sigunblock (sigmask (SIGHUP
));
1186 ! noninteractive
|| initialized
1192 /* Don't catch these signals in batch mode if dumping.
1193 On some machines, this sets static data that would make
1194 signal fail to work right when the dumped Emacs is run. */
1195 signal (SIGQUIT
, fatal_error_signal
);
1196 signal (SIGILL
, fatal_error_signal
);
1197 signal (SIGTRAP
, fatal_error_signal
);
1199 add_user_signal (SIGUSR1
, "sigusr1");
1202 add_user_signal (SIGUSR2
, "sigusr2");
1205 signal (SIGABRT
, fatal_error_signal
);
1208 signal (SIGHWE
, fatal_error_signal
);
1211 signal (SIGPRE
, fatal_error_signal
);
1214 signal (SIGORE
, fatal_error_signal
);
1217 signal (SIGUME
, fatal_error_signal
);
1220 signal (SIGDLK
, fatal_error_signal
);
1223 signal (SIGCPULIM
, fatal_error_signal
);
1226 /* This is missing on some systems - OS/2, for example. */
1227 signal (SIGIOT
, fatal_error_signal
);
1230 signal (SIGEMT
, fatal_error_signal
);
1232 signal (SIGFPE
, fatal_error_signal
);
1234 signal (SIGBUS
, fatal_error_signal
);
1236 signal (SIGSEGV
, fatal_error_signal
);
1238 signal (SIGSYS
, fatal_error_signal
);
1240 signal (SIGTERM
, fatal_error_signal
);
1242 signal (SIGXCPU
, fatal_error_signal
);
1245 signal (SIGXFSZ
, fatal_error_signal
);
1246 #endif /* SIGXFSZ */
1249 /* This just means available memory is getting low. */
1250 signal (SIGDANGER
, memory_warning_signal
);
1254 /* 20 is SIGCHLD, 21 is SIGTTIN, 22 is SIGTTOU. */
1255 signal (SIGXCPU
, fatal_error_signal
);
1256 signal (SIGIOINT
, fatal_error_signal
);
1257 signal (SIGGRANT
, fatal_error_signal
);
1258 signal (SIGRETRACT
, fatal_error_signal
);
1259 signal (SIGSOUND
, fatal_error_signal
);
1260 signal (SIGMSG
, fatal_error_signal
);
1264 noninteractive1
= noninteractive
;
1266 /* Perform basic initializations (not merely interning symbols). */
1273 init_character_once ();
1274 init_charset_once ();
1275 init_coding_once ();
1276 init_syntax_once (); /* Create standard syntax table. */
1277 init_category_once (); /* Create standard category table. */
1278 /* Must be done before init_buffer. */
1279 init_casetab_once ();
1280 init_buffer_once (); /* Create buffer table and some buffers. */
1281 init_minibuf_once (); /* Create list of minibuffers. */
1282 /* Must precede init_window_once. */
1284 /* Call syms_of_xfaces before init_window_once because that
1285 function creates Vterminal_frame. Termcap frames now use
1286 faces, and the face implementation uses some symbols as
1289 /* XXX syms_of_keyboard uses some symbols in keymap.c. It would
1290 be better to arrange things not to have this dependency. */
1292 /* Call syms_of_keyboard before init_window_once because
1293 keyboard sets up symbols that include some face names that
1294 the X support will want to use. This can happen when
1295 CANNOT_DUMP is defined. */
1296 syms_of_keyboard ();
1298 /* Called before syms_of_fileio, because it sets up Qerror_condition. */
1301 /* Before syms_of_coding to initialize Vgc_cons_threshold. */
1303 /* Before syms_of_coding because it initializes Qcharsetp. */
1305 /* Before init_window_once, because it sets up the
1306 Vcoding_system_hash_table. */
1307 syms_of_coding (); /* This should be after syms_of_fileio. */
1309 init_window_once (); /* Init the window system. */
1310 #ifdef HAVE_WINDOW_SYSTEM
1311 init_fringe_once (); /* Swap bitmaps if necessary. */
1312 #endif /* HAVE_WINDOW_SYSTEM */
1317 if (do_initial_setlocale
)
1320 Vsystem_messages_locale
= Vprevious_system_messages_locale
;
1321 Vsystem_time_locale
= Vprevious_system_time_locale
;
1326 #ifdef CLASH_DETECTION
1330 running_asynch_code
= 0;
1332 /* Handle --unibyte and the EMACS_UNIBYTE envvar,
1333 but not while dumping. */
1336 int inhibit_unibyte
= 0;
1338 /* --multibyte overrides EMACS_UNIBYTE. */
1339 if (argmatch (argv
, argc
, "-no-unibyte", "--no-unibyte", 4, NULL
, &skip_args
)
1340 || argmatch (argv
, argc
, "-multibyte", "--multibyte", 4, NULL
, &skip_args
)
1341 /* Ignore EMACS_UNIBYTE before dumping. */
1342 || (!initialized
&& noninteractive
))
1343 inhibit_unibyte
= 1;
1345 /* --unibyte requests that we set up to do everything with single-byte
1346 buffers and strings. We need to handle this before calling
1347 init_lread, init_editfns and other places that generate Lisp strings
1348 from text in the environment. */
1349 /* Actually this shouldn't be needed as of 20.4 in a generally
1350 unibyte environment. As handa says, environment values
1351 aren't now decoded; also existing buffers are now made
1352 unibyte during startup if .emacs sets unibyte. Tested with
1353 8-bit data in environment variables and /etc/passwd, setting
1354 unibyte and Latin-1 in .emacs. -- Dave Love */
1355 if (argmatch (argv
, argc
, "-unibyte", "--unibyte", 4, NULL
, &skip_args
)
1356 || argmatch (argv
, argc
, "-no-multibyte", "--no-multibyte", 4, NULL
, &skip_args
)
1357 || (getenv ("EMACS_UNIBYTE") && !inhibit_unibyte
))
1359 Lisp_Object old_log_max
;
1360 Lisp_Object symbol
, tail
;
1362 symbol
= intern_c_string ("enable-multibyte-characters");
1363 Fset_default (symbol
, Qnil
);
1367 /* Erase pre-dump messages in *Messages* now so no abort. */
1368 old_log_max
= Vmessage_log_max
;
1369 XSETFASTINT (Vmessage_log_max
, 0);
1370 message_dolog ("", 0, 1, 0);
1371 Vmessage_log_max
= old_log_max
;
1374 for (tail
= Vbuffer_alist
; CONSP (tail
);
1379 buffer
= Fcdr (XCAR (tail
));
1380 /* Make a multibyte buffer unibyte. */
1381 if (BUF_Z_BYTE (XBUFFER (buffer
)) > BUF_Z (XBUFFER (buffer
)))
1383 struct buffer
*current
= current_buffer
;
1385 set_buffer_temp (XBUFFER (buffer
));
1386 Fset_buffer_multibyte (Qnil
);
1387 set_buffer_temp (current
);
1390 message ("Warning: unibyte sessions are obsolete and will disappear");
1395 = argmatch (argv
, argc
, "-nl", "--no-loadup", 6, NULL
, &skip_args
);
1398 ns_alloc_autorelease_pool();
1399 if (!noninteractive
)
1401 #ifdef NS_IMPL_COCOA
1402 if (skip_args
< argc
)
1404 if (!strncmp(argv
[skip_args
], "-psn", 4))
1407 chdir (getenv ("HOME"));
1409 else if (skip_args
+1 < argc
&& !strncmp(argv
[skip_args
+1], "-psn", 4))
1412 chdir (getenv ("HOME"));
1417 #endif /* HAVE_NS */
1419 #ifdef HAVE_X_WINDOWS
1420 /* Stupid kludge to catch command-line display spec. We can't
1421 handle this argument entirely in window system dependent code
1422 because we don't even know which window system dependent code
1423 to run until we've recognized this argument. */
1425 char *displayname
= 0;
1426 int count_before
= skip_args
;
1428 /* Skip any number of -d options, but only use the last one. */
1431 int count_before_this
= skip_args
;
1433 if (argmatch (argv
, argc
, "-d", "--display", 3, &displayname
, &skip_args
))
1435 else if (argmatch (argv
, argc
, "-display", 0, 3, &displayname
, &skip_args
))
1440 count_before
= count_before_this
;
1443 /* If we have the form --display=NAME,
1444 convert it into -d name.
1445 This requires inserting a new element into argv. */
1446 if (displayname
!= 0 && skip_args
- count_before
== 1)
1448 char **new = (char **) xmalloc (sizeof (char *) * (argc
+ 2));
1451 for (j
= 0; j
< count_before
+ 1; j
++)
1453 new[count_before
+ 1] = "-d";
1454 new[count_before
+ 2] = displayname
;
1455 for (j
= count_before
+ 2; j
<argc
; j
++)
1456 new[j
+ 1] = argv
[j
];
1460 /* Change --display to -d, when its arg is separate. */
1461 else if (displayname
!= 0 && skip_args
> count_before
1462 && argv
[count_before
+ 1][1] == '-')
1463 argv
[count_before
+ 1] = "-d";
1465 /* Don't actually discard this arg. */
1466 skip_args
= count_before
;
1470 /* argmatch must not be used after here,
1471 except when bulding temacs
1472 because the -d argument has not been skipped in skip_args. */
1475 /* Call early 'cause init_environment needs it. */
1477 /* Set defaults for several environment variables. */
1479 init_environment (argc
, argv
, skip_args
);
1486 /* Initialize environment from registry settings. */
1487 init_environment (argv
);
1488 init_ntproc (); /* must precede init_editfns. */
1498 /* Initialize and GC-protect Vinitial_environment and
1499 Vprocess_environment before set_initial_environment fills them
1502 syms_of_callproc ();
1503 /* egetenv is a pretty low-level facility, which may get called in
1504 many circumstances; it seems flimsy to put off initializing it
1505 until calling init_callproc. */
1506 set_initial_environment ();
1507 /* AIX crashes are reported in system versions 3.2.3 and 3.2.4
1508 if this is not done. Do it after set_global_environment so that we
1509 don't pollute Vglobal_environment. */
1510 /* Setting LANG here will defeat the startup locale processing... */
1515 init_buffer (); /* Init default directory of main buffer. */
1517 init_callproc_1 (); /* Must precede init_cmdargs and init_sys_modes. */
1518 init_cmdargs (argc
, argv
, skip_args
); /* Must precede init_lread. */
1522 /* Erase any pre-dump messages in the message log, to avoid confusion. */
1523 Lisp_Object old_log_max
;
1524 old_log_max
= Vmessage_log_max
;
1525 XSETFASTINT (Vmessage_log_max
, 0);
1526 message_dolog ("", 0, 1, 0);
1527 Vmessage_log_max
= old_log_max
;
1530 init_callproc (); /* Must follow init_cmdargs but not init_sys_modes. */
1533 /* Intern the names of all standard functions and variables;
1534 define standard keys. */
1538 /* The basic levels of Lisp must come first. Note that
1539 syms_of_data and some others have already been called. */
1545 syms_of_floatfns ();
1548 syms_of_bytecode ();
1550 syms_of_casefiddle ();
1552 syms_of_category ();
1554 syms_of_character ();
1561 #ifdef CLASH_DETECTION
1562 syms_of_filelock ();
1563 #endif /* CLASH_DETECTION */
1566 /* syms_of_keymap (); */
1574 syms_of_terminal ();
1580 syms_of_textprop ();
1581 syms_of_composite ();
1584 #endif /* WINDOWSNT */
1588 #ifdef HAVE_WINDOW_SYSTEM
1591 #endif /* HAVE_WINDOW_SYSTEM */
1592 #ifdef HAVE_X_WINDOWS
1597 syms_of_xsettings ();
1604 #endif /* HAVE_X_WINDOWS */
1611 syms_of_w32select ();
1614 #endif /* HAVE_NTGUI */
1620 syms_of_win16select();
1627 syms_of_nsselect ();
1629 #endif /* HAVE_NS */
1632 syms_of_dbusbind ();
1633 #endif /* HAVE_DBUS */
1637 #endif /* WINDOWSNT */
1639 keys_of_casefiddle ();
1642 keys_of_keyboard ();
1648 /* Initialization that must be done even if the global variable
1649 initialized is non zero. */
1651 globals_of_w32fns ();
1652 globals_of_w32menu ();
1653 globals_of_w32select ();
1654 #endif /* HAVE_NTGUI */
1659 init_editfns (); /* init_process uses Voperating_system_release. */
1660 init_process (); /* init_display uses add_keyboard_wait_descriptor. */
1661 init_keyboard (); /* This too must precede init_sys_modes. */
1662 if (!noninteractive
)
1663 init_display (); /* Determine terminal type. Calls init_sys_modes. */
1666 #ifdef HAVE_WINDOW_SYSTEM
1669 #endif /* HAVE_WINDOW_SYSTEM */
1681 /* Handle -l loadup, args passed by Makefile. */
1682 if (argmatch (argv
, argc
, "-l", "--load", 3, &file
, &skip_args
))
1683 Vtop_level
= Fcons (intern_c_string ("load"),
1684 Fcons (build_string (file
), Qnil
));
1685 /* Unless next switch is -nl, load "loadup.el" first thing. */
1687 Vtop_level
= Fcons (intern_c_string ("load"),
1688 Fcons (build_string ("loadup.el"), Qnil
));
1695 /* If the execution TZ happens to be the same as the dump TZ,
1696 change it to some other value and then change it back,
1697 to force the underlying implementation to reload the TZ info.
1698 This is needed on implementations that load TZ info from files,
1699 since the TZ file contents may differ between dump and execution. */
1700 char *tz
= getenv ("TZ");
1701 if (tz
&& !strcmp (tz
, dump_tz
))
1711 /* Set up for profiling. This is known to work on FreeBSD,
1712 GNU/Linux and MinGW. It might work on some other systems too.
1713 Give it a try and tell us if it works on your system. To compile
1714 for profiling, use the configure option --enable-profiling. */
1715 #if defined (__FreeBSD__) || defined (GNU_LINUX) || defined(__MINGW32__)
1719 extern void _mcleanup ();
1721 extern unsigned char etext
asm ("etext");
1725 #ifdef HAVE___EXECUTABLE_START
1726 /* This symbol is defined by GNU ld to the start of the text
1728 extern char __executable_start
[];
1730 extern void safe_bcopy ();
1734 #ifdef HAVE___EXECUTABLE_START
1735 monstartup (__executable_start
, &etext
);
1737 /* This uses safe_bcopy because that function comes first in the
1738 Emacs executable. It might be better to use something that
1739 gives the start of the text segment, but start_of_text is not
1740 defined on all systems now. */
1741 /* FIXME: Does not work on architectures with function
1743 monstartup (safe_bcopy
, &etext
);
1753 #ifdef LOCALTIME_CACHE
1754 /* Some versions of localtime have a bug. They cache the value of the time
1755 zone rather than looking it up every time. Since localtime() is
1756 called to bolt the undumping time into the undumped emacs, this
1757 results in localtime ignoring the TZ environment variable.
1758 This flushes the new TZ value into localtime. */
1760 #endif /* defined (LOCALTIME_CACHE) */
1762 /* Enter editor command loop. This never returns. */
1768 /* Sort the args so we can find the most important ones
1769 at the beginning of argv. */
1771 /* First, here's a table of all the standard options. */
1773 struct standard_args
1776 const char *longname
;
1781 const struct standard_args standard_args
[] =
1783 { "-version", "--version", 150, 0 },
1784 { "-chdir", "--chdir", 130, 1 },
1785 { "-t", "--terminal", 120, 1 },
1786 { "-nw", "--no-window-system", 110, 0 },
1787 { "-nw", "--no-windows", 110, 0 },
1788 { "-batch", "--batch", 100, 0 },
1789 { "-script", "--script", 100, 1 },
1790 { "-daemon", "--daemon", 99, 0 },
1791 { "-help", "--help", 90, 0 },
1792 { "-no-unibyte", "--no-unibyte", 83, 0 },
1793 { "-multibyte", "--multibyte", 82, 0 },
1794 { "-unibyte", "--unibyte", 81, 0 },
1795 { "-no-multibyte", "--no-multibyte", 80, 0 },
1796 { "-nl", "--no-loadup", 70, 0 },
1797 /* -d must come last before the options handled in startup.el. */
1798 { "-d", "--display", 60, 1 },
1799 { "-display", 0, 60, 1 },
1800 /* Now for the options handled in `command-line' (startup.el). */
1801 { "-Q", "--quick", 55, 0 },
1802 { "-quick", 0, 55, 0 },
1803 { "-q", "--no-init-file", 50, 0 },
1804 { "-no-init-file", 0, 50, 0 },
1805 { "-no-site-file", "--no-site-file", 40, 0 },
1806 { "-u", "--user", 30, 1 },
1807 { "-user", 0, 30, 1 },
1808 { "-debug-init", "--debug-init", 20, 0 },
1809 { "-iconic", "--iconic", 15, 0 },
1810 { "-D", "--basic-display", 12, 0},
1811 { "-basic-display", 0, 12, 0},
1812 { "-nbc", "--no-blinking-cursor", 12, 0 },
1813 /* Now for the options handled in `command-line-1' (startup.el). */
1814 { "-nbi", "--no-bitmap-icon", 10, 0 },
1815 { "-bg", "--background-color", 10, 1 },
1816 { "-background", 0, 10, 1 },
1817 { "-fg", "--foreground-color", 10, 1 },
1818 { "-foreground", 0, 10, 1 },
1819 { "-bd", "--border-color", 10, 1 },
1820 { "-bw", "--border-width", 10, 1 },
1821 { "-ib", "--internal-border", 10, 1 },
1822 { "-ms", "--mouse-color", 10, 1 },
1823 { "-cr", "--cursor-color", 10, 1 },
1824 { "-fn", "--font", 10, 1 },
1825 { "-font", 0, 10, 1 },
1826 { "-fs", "--fullscreen", 10, 0 },
1827 { "-fw", "--fullwidth", 10, 0 },
1828 { "-fh", "--fullheight", 10, 0 },
1829 { "-mm", "--maximized", 10, 0 },
1830 { "-g", "--geometry", 10, 1 },
1831 { "-geometry", 0, 10, 1 },
1832 { "-T", "--title", 10, 1 },
1833 { "-title", 0, 10, 1 },
1834 { "-name", "--name", 10, 1 },
1835 { "-xrm", "--xrm", 10, 1 },
1836 { "-parent-id", "--parent-id", 10, 1 },
1837 { "-r", "--reverse-video", 5, 0 },
1839 { "-reverse", 0, 5, 0 },
1840 { "-hb", "--horizontal-scroll-bars", 5, 0 },
1841 { "-vb", "--vertical-scroll-bars", 5, 0 },
1842 { "-color", "--color", 5, 0},
1843 { "-no-splash", "--no-splash", 3, 0 },
1844 { "-no-desktop", "--no-desktop", 3, 0 },
1846 { "-NSAutoLaunch", 0, 5, 1 },
1847 { "-NXAutoLaunch", 0, 5, 1 },
1848 { "-disable-font-backend", "--disable-font-backend", 65, 0 },
1849 { "-_NSMachLaunch", 0, 85, 1 },
1850 { "-MachLaunch", 0, 85, 1 },
1851 { "-macosx", 0, 85, 0 },
1852 { "-NSHost", 0, 85, 1 },
1854 /* These have the same priority as ordinary file name args,
1855 so they are not reordered with respect to those. */
1856 { "-L", "--directory", 0, 1 },
1857 { "-directory", 0, 0, 1 },
1858 { "-l", "--load", 0, 1 },
1859 { "-load", 0, 0, 1 },
1860 /* This has no longname, because using --scriptload confuses sort_args,
1861 because then the --script long option seems to match twice; ie
1862 you can't have a long option which is a prefix of another long
1863 option. In any case, this is entirely an internal option. */
1864 { "-scriptload", NULL
, 0, 1 },
1865 { "-f", "--funcall", 0, 1 },
1866 { "-funcall", 0, 0, 1 },
1867 { "-eval", "--eval", 0, 1 },
1868 { "-execute", "--execute", 0, 1 },
1869 { "-find-file", "--find-file", 0, 1 },
1870 { "-visit", "--visit", 0, 1 },
1871 { "-file", "--file", 0, 1 },
1872 { "-insert", "--insert", 0, 1 },
1874 { "-NXOpen", 0, 0, 1 },
1875 { "-NXOpenTemp", 0, 0, 1 },
1876 { "-NSOpen", 0, 0, 1 },
1877 { "-NSOpenTemp", 0, 0, 1 },
1878 { "-GSFilePath", 0, 0, 1 },
1880 /* This should be processed after ordinary file name args and the like. */
1881 { "-kill", "--kill", -10, 0 },
1884 /* Reorder the elements of ARGV (assumed to have ARGC elements)
1885 so that the highest priority ones come first.
1886 Do not change the order of elements of equal priority.
1887 If an option takes an argument, keep it and its argument together.
1889 If an option that takes no argument appears more
1890 than once, eliminate all but one copy of it. */
1893 sort_args (int argc
, char **argv
)
1895 char **new = (char **) xmalloc (sizeof (char *) * argc
);
1896 /* For each element of argv,
1897 the corresponding element of options is:
1898 0 for an option that takes no arguments,
1899 1 for an option that takes one argument, etc.
1900 -1 for an ordinary non-option argument. */
1901 int *options
= (int *) xmalloc (sizeof (int) * argc
);
1902 int *priority
= (int *) xmalloc (sizeof (int) * argc
);
1904 int incoming_used
= 1;
1908 /* Categorize all the options,
1909 and figure out which argv elts are option arguments. */
1910 for (from
= 1; from
< argc
; from
++)
1914 if (argv
[from
][0] == '-')
1919 /* If we have found "--", don't consider
1920 any more arguments as options. */
1921 if (argv
[from
][1] == '-' && argv
[from
][2] == 0)
1923 /* Leave the "--", and everything following it, at the end. */
1924 for (; from
< argc
; from
++)
1926 priority
[from
] = -100;
1932 /* Look for a match with a known old-fashioned option. */
1933 for (i
= 0; i
< sizeof (standard_args
) / sizeof (standard_args
[0]); i
++)
1934 if (!strcmp (argv
[from
], standard_args
[i
].name
))
1936 options
[from
] = standard_args
[i
].nargs
;
1937 priority
[from
] = standard_args
[i
].priority
;
1938 if (from
+ standard_args
[i
].nargs
>= argc
)
1939 fatal ("Option `%s' requires an argument\n", argv
[from
]);
1940 from
+= standard_args
[i
].nargs
;
1944 /* Look for a match with a known long option.
1945 MATCH is -1 if no match so far, -2 if two or more matches so far,
1946 >= 0 (the table index of the match) if just one match so far. */
1947 if (argv
[from
][1] == '-')
1950 thislen
= strlen (argv
[from
]);
1951 equals
= strchr (argv
[from
], '=');
1953 thislen
= equals
- argv
[from
];
1956 i
< sizeof (standard_args
) / sizeof (standard_args
[0]); i
++)
1957 if (standard_args
[i
].longname
1958 && !strncmp (argv
[from
], standard_args
[i
].longname
,
1967 /* If we found exactly one match, use that. */
1970 options
[from
] = standard_args
[match
].nargs
;
1971 priority
[from
] = standard_args
[match
].priority
;
1972 /* If --OPTION=VALUE syntax is used,
1973 this option uses just one argv element. */
1976 if (from
+ options
[from
] >= argc
)
1977 fatal ("Option `%s' requires an argument\n", argv
[from
]);
1978 from
+= options
[from
];
1980 /* FIXME When match < 0, shouldn't there be some error,
1981 or at least indication to the user that there was a
1988 /* Copy the arguments, in order of decreasing priority, to NEW. */
1990 while (incoming_used
< argc
)
1993 int best_priority
= -9999;
1995 /* Find the highest priority remaining option.
1996 If several have equal priority, take the first of them. */
1997 for (from
= 1; from
< argc
; from
++)
1999 if (argv
[from
] != 0 && priority
[from
] > best_priority
)
2001 best_priority
= priority
[from
];
2004 /* Skip option arguments--they are tied to the options. */
2005 if (options
[from
] > 0)
2006 from
+= options
[from
];
2012 /* Copy the highest priority remaining option, with its args, to NEW.
2013 Unless it is a duplicate of the previous one. */
2014 if (! (options
[best
] == 0
2015 && ! strcmp (new[to
- 1], argv
[best
])))
2017 new[to
++] = argv
[best
];
2018 for (i
= 0; i
< options
[best
]; i
++)
2019 new[to
++] = argv
[best
+ i
+ 1];
2022 incoming_used
+= 1 + (options
[best
] > 0 ? options
[best
] : 0);
2024 /* Clear out this option in ARGV. */
2026 for (i
= 0; i
< options
[best
]; i
++)
2027 argv
[best
+ i
+ 1] = 0;
2030 /* If duplicate options were deleted, fill up extra space with null ptrs. */
2034 memcpy (argv
, new, sizeof (char *) * argc
);
2041 DEFUN ("kill-emacs", Fkill_emacs
, Skill_emacs
, 0, 1, "P",
2042 doc
: /* Exit the Emacs job and kill it.
2043 If ARG is an integer, return ARG as the exit program code.
2044 If ARG is a string, stuff it as keyboard input.
2046 The value of `kill-emacs-hook', if not void,
2047 is a list of functions (of no args),
2048 all of which are called before Emacs is actually killed. */)
2051 struct gcpro gcpro1
;
2058 if (!NILP (Vrun_hooks
) && !noninteractive
)
2059 call1 (Vrun_hooks
, intern ("kill-emacs-hook"));
2063 shut_down_emacs (0, 0, STRINGP (arg
) ? arg
: Qnil
);
2065 /* If we have an auto-save list file,
2066 kill it because we are exiting Emacs deliberately (not crashing).
2067 Do it after shut_down_emacs, which does an auto-save. */
2068 if (STRINGP (Vauto_save_list_file_name
))
2069 unlink (SDATA (Vauto_save_list_file_name
));
2071 exit (INTEGERP (arg
) ? XINT (arg
) : EXIT_SUCCESS
);
2075 /* Perform an orderly shutdown of Emacs. Autosave any modified
2076 buffers, kill any child processes, clean up the terminal modes (if
2077 we're in the foreground), and other stuff like that. Don't perform
2078 any redisplay; this may be called when Emacs is shutting down in
2079 the background, or after its X connection has died.
2081 If SIG is a signal number, print a message for it.
2083 This is called by fatal signal handlers, X protocol error handlers,
2087 shut_down_emacs (int sig
, int no_x
, Lisp_Object stuff
)
2089 /* Prevent running of hooks from now on. */
2092 /* Don't update display from now on. */
2093 Vinhibit_redisplay
= Qt
;
2095 /* If we are controlling the terminal, reset terminal modes. */
2096 #ifdef EMACS_HAVE_TTY_PGRP
2098 int pgrp
= EMACS_GETPGRP (0);
2101 if (EMACS_GET_TTY_PGRP (0, &tpgrp
) != -1
2104 reset_all_sys_modes ();
2105 if (sig
&& sig
!= SIGTERM
)
2106 fprintf (stderr
, "Fatal error (%d)", sig
);
2111 reset_all_sys_modes ();
2114 stuff_buffered_input (stuff
);
2116 inhibit_sentinels
= 1;
2117 kill_buffer_processes (Qnil
);
2118 Fdo_auto_save (Qt
, Qnil
);
2120 #ifdef CLASH_DETECTION
2121 unlock_all_files ();
2124 #if 0 /* This triggers a bug in XCloseDisplay and is not needed. */
2125 #ifdef HAVE_X_WINDOWS
2126 /* It's not safe to call intern here. Maybe we are crashing. */
2127 if (!noninteractive
&& SYMBOLP (Vinitial_window_system
)
2128 && SCHARS (SYMBOL_NAME (Vinitial_window_system
)) == 1
2129 && SREF (SYMBOL_NAME (Vinitial_window_system
), 0) == 'x'
2131 Fx_close_current_connection ();
2132 #endif /* HAVE_X_WINDOWS */
2136 /* There is a tendency for a SIGIO signal to arrive within exit,
2137 and cause a SIGHUP because the input descriptor is already closed. */
2139 signal (SIGIO
, SIG_IGN
);
2146 /* Do this only if terminating normally, we want glyph matrices
2147 etc. in a core dump. */
2148 if (sig
== 0 || sig
== SIGTERM
)
2150 check_glyph_memory ();
2151 check_message_stack ();
2159 ns_term_shutdown (sig
);
2167 DEFUN ("dump-emacs", Fdump_emacs
, Sdump_emacs
, 2, 2, 0,
2168 doc
: /* Dump current state of Emacs into executable file FILENAME.
2169 Take symbols from SYMFILE (presumably the file you executed to run Emacs).
2170 This is used in the file `loadup.el' when building Emacs.
2172 You must run Emacs in batch mode in order to dump it. */)
2173 (Lisp_Object filename
, Lisp_Object symfile
)
2175 extern char my_edata
[];
2178 int count
= SPECPDL_INDEX ();
2182 if (! noninteractive
)
2183 error ("Dumping Emacs works only in batch mode");
2186 if (heap_bss_diff
> MAX_HEAP_BSS_DIFF
)
2188 fprintf (stderr
, "**************************************************\n");
2189 fprintf (stderr
, "Warning: Your system has a gap between BSS and the\n");
2190 fprintf (stderr
, "heap (%lu bytes). This usually means that exec-shield\n",
2192 fprintf (stderr
, "or something similar is in effect. The dump may\n");
2193 fprintf (stderr
, "fail because of this. See the section about\n");
2194 fprintf (stderr
, "exec-shield in etc/PROBLEMS for more information.\n");
2195 fprintf (stderr
, "**************************************************\n");
2197 #endif /* GNU_LINUX */
2199 /* Bind `command-line-processed' to nil before dumping,
2200 so that the dumped Emacs will process its command line
2201 and set up to work with X windows if appropriate. */
2202 symbol
= intern ("command-line-processed");
2203 specbind (symbol
, Qnil
);
2205 CHECK_STRING (filename
);
2206 filename
= Fexpand_file_name (filename
, Qnil
);
2207 if (!NILP (symfile
))
2209 CHECK_STRING (symfile
);
2210 if (SCHARS (symfile
))
2211 symfile
= Fexpand_file_name (symfile
, Qnil
);
2215 Vpurify_flag
= Qnil
;
2218 set_time_zone_rule (dump_tz
);
2219 #ifndef LOCALTIME_CACHE
2220 /* Force a tz reload, since set_time_zone_rule doesn't. */
2226 /* Tell malloc where start of impure now is. */
2227 /* Also arrange for warnings when nearly out of space. */
2228 #ifndef SYSTEM_MALLOC
2230 /* On Windows, this was done before dumping, and that once suffices.
2231 Meanwhile, my_edata is not valid on Windows. */
2232 memory_warnings (my_edata
, malloc_warning
);
2233 #endif /* not WINDOWSNT */
2235 #if !defined (SYSTEM_MALLOC) && defined (HAVE_GTK_AND_PTHREAD) && !defined SYNC_INPUT
2236 /* Pthread may call malloc before main, and then we will get an endless
2237 loop, because pthread_self (see alloc.c) calls malloc the first time
2238 it is called on some systems. */
2239 reset_malloc_hooks ();
2241 #ifdef DOUG_LEA_MALLOC
2242 malloc_state_ptr
= malloc_get_state ();
2245 #ifdef USE_MMAP_FOR_BUFFERS
2248 unexec (SDATA (filename
),
2249 !NILP (symfile
) ? SDATA (symfile
) : 0, my_edata
, 0, 0);
2250 #ifdef USE_MMAP_FOR_BUFFERS
2253 #ifdef DOUG_LEA_MALLOC
2254 free (malloc_state_ptr
);
2259 return unbind_to (count
, Qnil
);
2262 #endif /* not CANNOT_DUMP */
2265 /* Recover from setlocale (LC_ALL, ""). */
2269 /* The Emacs Lisp reader needs LC_NUMERIC to be "C",
2270 so that numbers are read and printed properly for Emacs Lisp. */
2271 setlocale (LC_NUMERIC
, "C");
2274 /* Set system locale CATEGORY, with previous locale *PLOCALE, to
2277 synchronize_locale (int category
, Lisp_Object
*plocale
, Lisp_Object desired_locale
)
2279 if (! EQ (*plocale
, desired_locale
))
2281 *plocale
= desired_locale
;
2282 setlocale (category
, (STRINGP (desired_locale
)
2283 ? (char *) SDATA (desired_locale
)
2288 /* Set system time locale to match Vsystem_time_locale, if possible. */
2290 synchronize_system_time_locale (void)
2292 synchronize_locale (LC_TIME
, &Vprevious_system_time_locale
,
2293 Vsystem_time_locale
);
2296 /* Set system messages locale to match Vsystem_messages_locale, if
2299 synchronize_system_messages_locale (void)
2302 synchronize_locale (LC_MESSAGES
, &Vprevious_system_messages_locale
,
2303 Vsystem_messages_locale
);
2306 #endif /* HAVE_SETLOCALE */
2313 decode_env_path (const char *evarname
, const char *defalt
)
2315 const char *path
, *p
;
2316 Lisp_Object lpath
, element
, tem
;
2318 /* It's okay to use getenv here, because this function is only used
2319 to initialize variables when Emacs starts up, and isn't called
2322 path
= getenv (evarname
);
2328 /* Ensure values from the environment use the proper directory separator. */
2331 char *path_copy
= alloca (strlen (path
) + 1);
2332 strcpy (path_copy
, path
);
2333 dostounix_filename (path_copy
);
2340 p
= strchr (path
, SEPCHAR
);
2342 p
= path
+ strlen (path
);
2343 element
= (p
- path
? make_string (path
, p
- path
)
2344 : build_string ("."));
2346 /* Add /: to the front of the name
2347 if it would otherwise be treated as magic. */
2348 tem
= Ffind_file_name_handler (element
, Qt
);
2350 /* However, if the handler says "I'm safe",
2351 don't bother adding /:. */
2355 prop
= Fget (tem
, intern ("safe-magic"));
2361 element
= concat2 (build_string ("/:"), element
);
2363 lpath
= Fcons (element
, lpath
);
2369 return Fnreverse (lpath
);
2372 DEFUN ("daemonp", Fdaemonp
, Sdaemonp
, 0, 0, 0,
2373 doc
: /* Return non-nil if the current emacs process is a daemon.
2374 If the daemon was given a name argument, return that name. */)
2379 return build_string (daemon_name
);
2386 DEFUN ("daemon-initialized", Fdaemon_initialized
, Sdaemon_initialized
, 0, 0, 0,
2387 doc
: /* Mark the Emacs daemon as being initialized.
2388 This finishes the daemonization process by doing the other half of detaching
2389 from the parent process and its tty file descriptors. */)
2395 error ("This function can only be called if emacs is run as a daemon");
2397 if (daemon_pipe
[1] < 0)
2398 error ("The daemon has already been initialized");
2400 if (NILP (Vafter_init_time
))
2401 error ("This function can only be called after loading the init files");
2403 /* Get rid of stdin, stdout and stderr. */
2404 nfd
= open ("/dev/null", O_RDWR
);
2410 /* Closing the pipe will notify the parent that it can exit.
2411 FIXME: In case some other process inherited the pipe, closing it here
2412 won't notify the parent because it's still open elsewhere, so we
2413 additionally send a byte, just to make sure the parent really exits.
2414 Instead, we should probably close the pipe in start-process and
2415 call-process to make sure the pipe is never inherited by
2417 write (daemon_pipe
[1], "\n", 1);
2418 close (daemon_pipe
[1]);
2419 /* Set it to an invalid value so we know we've already run this function. */
2420 daemon_pipe
[1] = -1;
2425 syms_of_emacs (void)
2427 Qfile_name_handler_alist
= intern_c_string ("file-name-handler-alist");
2428 staticpro (&Qfile_name_handler_alist
);
2431 defsubr (&Sdump_emacs
);
2434 defsubr (&Skill_emacs
);
2436 defsubr (&Sinvocation_name
);
2437 defsubr (&Sinvocation_directory
);
2438 defsubr (&Sdaemonp
);
2439 defsubr (&Sdaemon_initialized
);
2441 DEFVAR_LISP ("command-line-args", &Vcommand_line_args
,
2442 doc
: /* Args passed by shell to Emacs, as a list of strings.
2443 Many arguments are deleted from the list as they are processed. */);
2445 DEFVAR_LISP ("system-type", &Vsystem_type
,
2446 doc
: /* The value is a symbol indicating the type of operating system you are using.
2448 `gnu' compiled for a GNU Hurd system.
2449 `gnu/linux' compiled for a GNU/Linux system.
2450 `gnu/kfreebsd' compiled for a GNU system with a FreeBSD kernel.
2451 `darwin' compiled for Darwin (GNU-Darwin, Mac OS X, ...).
2452 `ms-dos' compiled as an MS-DOS application.
2453 `windows-nt' compiled as a native W32 application.
2454 `cygwin' compiled using the Cygwin library.
2455 Anything else (in Emacs 23.1, the possibilities are: aix, berkeley-unix,
2456 hpux, irix, lynxos 3.0.1, usg-unix-v) indicates some sort of Unix system. */);
2457 Vsystem_type
= intern_c_string (SYSTEM_TYPE
);
2459 DEFVAR_LISP ("system-configuration", &Vsystem_configuration
,
2460 doc
: /* Value is string indicating configuration Emacs was built for.
2461 On MS-Windows, the value reflects the OS flavor and version on which
2462 Emacs is running. */);
2463 Vsystem_configuration
= build_string (EMACS_CONFIGURATION
);
2465 DEFVAR_LISP ("system-configuration-options", &Vsystem_configuration_options
,
2466 doc
: /* String containing the configuration options Emacs was built with. */);
2467 Vsystem_configuration_options
= build_string (EMACS_CONFIG_OPTIONS
);
2469 DEFVAR_BOOL ("noninteractive", &noninteractive1
,
2470 doc
: /* Non-nil means Emacs is running without interactive terminal. */);
2472 DEFVAR_LISP ("kill-emacs-hook", &Vkill_emacs_hook
,
2473 doc
: /* Hook to be run when `kill-emacs' is called.
2474 Since `kill-emacs' may be invoked when the terminal is disconnected (or
2475 in other similar situations), functions placed on this hook should not
2476 expect to be able to interact with the user. To ask for confirmation,
2477 see `kill-emacs-query-functions' instead.
2479 The hook is not run in batch mode, i.e., if `noninteractive' is non-nil. */);
2480 Vkill_emacs_hook
= Qnil
;
2482 DEFVAR_INT ("emacs-priority", &emacs_priority
,
2483 doc
: /* Priority for Emacs to run at.
2484 This value is effective only if set before Emacs is dumped,
2485 and only if the Emacs executable is installed with setuid to permit
2486 it to change priority. (Emacs sets its uid back to the real uid.)
2487 Currently, you need to define SET_EMACS_PRIORITY in `config.h'
2488 before you compile Emacs, to enable the code for this feature. */);
2491 DEFVAR_LISP ("path-separator", &Vpath_separator
,
2492 doc
: /* String containing the character that separates directories in
2493 search paths, such as PATH and other similar environment variables. */);
2496 Vpath_separator
= make_string (&c
, 1);
2499 DEFVAR_LISP ("invocation-name", &Vinvocation_name
,
2500 doc
: /* The program name that was used to run Emacs.
2501 Any directory names are omitted. */);
2503 DEFVAR_LISP ("invocation-directory", &Vinvocation_directory
,
2504 doc
: /* The directory in which the Emacs executable was found, to run it.
2505 The value is nil if that directory's name is not known. */);
2507 DEFVAR_LISP ("installation-directory", &Vinstallation_directory
,
2508 doc
: /* A directory within which to look for the `lib-src' and `etc' directories.
2509 This is non-nil when we can't find those directories in their standard
2510 installed locations, but we can find them near where the Emacs executable
2512 Vinstallation_directory
= Qnil
;
2514 DEFVAR_LISP ("system-messages-locale", &Vsystem_messages_locale
,
2515 doc
: /* System locale for messages. */);
2516 Vsystem_messages_locale
= Qnil
;
2518 DEFVAR_LISP ("previous-system-messages-locale",
2519 &Vprevious_system_messages_locale
,
2520 doc
: /* Most recently used system locale for messages. */);
2521 Vprevious_system_messages_locale
= Qnil
;
2523 DEFVAR_LISP ("system-time-locale", &Vsystem_time_locale
,
2524 doc
: /* System locale for time. */);
2525 Vsystem_time_locale
= Qnil
;
2527 DEFVAR_LISP ("previous-system-time-locale", &Vprevious_system_time_locale
,
2528 doc
: /* Most recently used system locale for time. */);
2529 Vprevious_system_time_locale
= Qnil
;
2531 DEFVAR_LISP ("before-init-time", &Vbefore_init_time
,
2532 doc
: /* Value of `current-time' before Emacs begins initialization. */);
2533 Vbefore_init_time
= Qnil
;
2535 DEFVAR_LISP ("after-init-time", &Vafter_init_time
,
2536 doc
: /* Value of `current-time' after loading the init files.
2537 This is nil during initialization. */);
2538 Vafter_init_time
= Qnil
;
2540 DEFVAR_BOOL ("inhibit-x-resources", &inhibit_x_resources
,
2541 doc
: /* If non-nil, X resources, Windows Registry settings, and NS defaults are not used. */);
2542 inhibit_x_resources
= 0;
2544 DEFVAR_LISP ("emacs-copyright", &Vemacs_copyright
,
2545 doc
: /* Short copyright string for this version of Emacs. */);
2546 Vemacs_copyright
= build_string (emacs_copyright
);
2548 DEFVAR_LISP ("emacs-version", &Vemacs_version
,
2549 doc
: /* Version numbers of this version of Emacs. */);
2550 Vemacs_version
= build_string (emacs_version
);
2552 /* Make sure IS_DAEMON starts up as false. */
2556 /* arch-tag: 7bfd356a-c720-4612-8ab6-aa4222931c2e
2557 (do not change this comment) */