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"
72 #include <sys/resource.h>
75 #ifdef HAVE_PERSONALITY_LINUX32
76 #include <sys/personality.h>
86 #define setpgrp setpgid
90 extern void malloc_warning
P_ ((char *));
91 extern void set_time_zone_rule
P_ ((char *));
93 extern char *index
P_ ((const char *, int));
96 /* Make these values available in GDB, which doesn't see macros. */
103 #ifndef USE_LISP_UNION_TYPE
104 int gdb_use_union
= 0;
106 int gdb_use_union
= 1;
108 EMACS_INT gdb_valbits
= VALBITS
;
109 EMACS_INT gdb_gctypebits
= GCTYPEBITS
;
110 #if defined (DATA_SEG_BITS) && ! defined (USE_LSB_TAG)
111 EMACS_INT gdb_data_seg_bits
= DATA_SEG_BITS
;
113 EMACS_INT gdb_data_seg_bits
= 0;
115 EMACS_INT PVEC_FLAG
= PSEUDOVECTOR_FLAG
;
116 EMACS_INT gdb_array_mark_flag
= ARRAY_MARK_FLAG
;
117 /* GDB might say "No enum type named pvec_type" if we don't have at
118 least one symbol with that type, and then xbacktrace could fail. */
119 enum pvec_type gdb_pvec_type
= PVEC_TYPE_MASK
;
121 /* Command line args from shell, as list of strings. */
122 Lisp_Object Vcommand_line_args
;
124 /* The name under which Emacs was invoked, with any leading directory
126 Lisp_Object Vinvocation_name
;
128 /* The directory name from which Emacs was invoked. */
129 Lisp_Object Vinvocation_directory
;
131 /* The directory name in which to find subdirs such as lisp and etc.
132 nil means get them only from PATH_LOADSEARCH. */
133 Lisp_Object Vinstallation_directory
;
135 /* The values of `current-time' before and after Emacs initialization. */
136 Lisp_Object Vbefore_init_time
, Vafter_init_time
;
138 /* Hook run by `kill-emacs' before it does really anything. */
139 Lisp_Object Vkill_emacs_hook
;
141 /* Empty lisp strings. To avoid having to build any others. */
142 Lisp_Object empty_unibyte_string
, empty_multibyte_string
;
144 /* Search path separator. */
145 Lisp_Object Vpath_separator
;
147 /* Set nonzero after Emacs has started up the first time.
148 Prevents reinitialization of the Lisp world and keymaps
149 on subsequent starts. */
152 #ifdef DOUG_LEA_MALLOC
153 /* Preserves a pointer to the memory allocated that copies that
154 static data inside glibc's malloc. */
155 void *malloc_state_ptr
;
156 /* From glibc, a routine that returns a copy of the malloc internal state. */
157 extern void *malloc_get_state ();
158 /* From glibc, a routine that overwrites the malloc internal state. */
159 extern int malloc_set_state ();
160 /* Non-zero if the MALLOC_CHECK_ environment variable was set while
161 dumping. Used to work around a bug in glibc's malloc. */
162 int malloc_using_checking
;
165 /* Variable whose value is symbol giving operating system type. */
166 Lisp_Object Vsystem_type
;
168 /* Variable whose value is string giving configuration built for. */
169 Lisp_Object Vsystem_configuration
;
171 /* Variable whose value is string giving configuration options,
172 for use when reporting bugs. */
173 Lisp_Object Vsystem_configuration_options
;
175 Lisp_Object Qfile_name_handler_alist
;
177 /* Current and previous system locales for messages and time. */
178 Lisp_Object Vsystem_messages_locale
;
179 Lisp_Object Vprevious_system_messages_locale
;
180 Lisp_Object Vsystem_time_locale
;
181 Lisp_Object Vprevious_system_time_locale
;
183 /* If non-zero, emacs should not attempt to use a window-specific code,
184 but instead should use the virtual terminal under which it was started. */
185 int inhibit_window_system
;
187 /* If nonzero, set Emacs to run at this priority. This is also used
188 in child_setup and sys_suspend to make sure subshells run at normal
189 priority; those functions have their own extern declaration. */
190 EMACS_INT emacs_priority
;
192 /* If non-zero, a filter or a sentinel is running. Tested to save the match
193 data on the first attempt to change it inside asynchronous code. */
194 int running_asynch_code
;
196 #if defined(HAVE_X_WINDOWS) || defined(HAVE_NS)
197 /* If non-zero, -d was specified, meaning we're using some window system. */
201 /* An address near the bottom of the stack.
202 Tells GC how to save a copy of the stack. */
205 /* The address where the heap starts (from the first sbrk (0) call). */
206 static void *my_heap_start
;
208 /* The gap between BSS end and heap start as far as we can tell. */
209 static unsigned long heap_bss_diff
;
211 /* If the gap between BSS end and heap start is larger than this
212 output a warning in dump-emacs. */
213 #define MAX_HEAP_BSS_DIFF (1024*1024)
216 #ifdef HAVE_WINDOW_SYSTEM
217 extern Lisp_Object Vinitial_window_system
;
218 #endif /* HAVE_WINDOW_SYSTEM */
220 extern Lisp_Object Vauto_save_list_file_name
;
222 extern Lisp_Object Vinhibit_redisplay
;
224 /* Nonzero means running Emacs without interactive terminal. */
228 /* Value of Lisp variable `noninteractive'.
229 Normally same as C variable `noninteractive'
230 but nothing terrible happens if user sets this one. */
234 /* Nonzero means Emacs was run in --quick mode. */
235 int inhibit_x_resources
;
237 /* Name for the server started by the daemon.*/
238 static char *daemon_name
;
240 /* Pipe used to send exit notification to the daemon parent at
244 /* Save argv and argc. */
248 static void sort_args ();
249 void syms_of_emacs ();
251 /* MSVC needs each string be shorter than 2048 bytes, so the usage
252 strings below are split to not overflow this limit. */
254 Usage: %s [OPTION-OR-FILENAME]...\n\
256 Run Emacs, the extensible, customizable, self-documenting real-time\n\
257 display editor. The recommended way to start Emacs for normal editing\n\
258 is with no options at all.\n\
260 Run M-x info RET m emacs RET m emacs invocation RET inside Emacs to\n\
261 read the main documentation for these command-line arguments.\n\
263 Initialization options:\n\
265 --batch do not do interactive display; implies -q\n\
266 --chdir DIR change to directory DIR\n\
267 --daemon start a server in the background\n\
268 --debug-init enable Emacs Lisp debugger for init file\n\
269 --display, -d DISPLAY use X server DISPLAY\n\
270 --no-desktop do not load a saved desktop\n\
271 --no-init-file, -q load neither ~/.emacs nor default.el\n\
272 --no-shared-memory, -nl do not use shared memory\n\
273 --no-site-file do not load site-start.el\n\
274 --no-splash do not display a splash screen on startup\n\
275 --no-window-system, -nw do not communicate with X, ignoring $DISPLAY\n\
276 --quick, -Q equivalent to -q --no-site-file --no-splash\n\
277 --script FILE run FILE as an Emacs Lisp script\n\
278 --terminal, -t DEVICE use DEVICE for terminal I/O\n\
279 --user, -u USER load ~USER/.emacs instead of your own\n\
285 FILE visit FILE using find-file\n\
286 +LINE go to line LINE in next FILE\n\
287 +LINE:COLUMN go to line LINE, column COLUMN, in next FILE\n\
288 --directory, -L DIR add DIR to variable load-path\n\
289 --eval EXPR evaluate Emacs Lisp expression EXPR\n\
290 --execute EXPR evaluate Emacs Lisp expression EXPR\n\
291 --file FILE visit FILE using find-file\n\
292 --find-file FILE visit FILE using find-file\n\
293 --funcall, -f FUNC call Emacs Lisp function FUNC with no arguments\n\
294 --insert FILE insert contents of FILE into current buffer\n\
295 --kill exit without asking for confirmation\n\
296 --load, -l FILE load Emacs Lisp FILE using the load function\n\
297 --visit FILE visit FILE using find-file\n\
303 --background-color, -bg COLOR window background color\n\
304 --basic-display, -D disable many display features;\n\
305 used for debugging Emacs\n\
306 --border-color, -bd COLOR main border color\n\
307 --border-width, -bw WIDTH width of main border\n\
308 --color, --color=MODE override color mode for character terminals;\n\
309 MODE defaults to `auto', and can also\n\
310 be `never', `auto', `always',\n\
311 or a mode name like `ansi8'\n\
312 --cursor-color, -cr COLOR color of the Emacs cursor indicating point\n\
313 --font, -fn FONT default font; must be fixed-width\n\
314 --foreground-color, -fg COLOR window foreground color\n\
315 --fullheight, -fh make the first frame high as the screen\n\
316 --fullscreen, -fs make first frame fullscreen\n\
317 --fullwidth, -fw make the first frame wide as the screen\n\
318 --maximized, -mm make the first frame maximized\n\
319 --geometry, -g GEOMETRY window geometry\n\
320 --no-bitmap-icon, -nbi do not use picture of gnu for Emacs icon\n\
321 --iconic start Emacs in iconified state\n\
322 --internal-border, -ib WIDTH width between text and main border\n\
323 --line-spacing, -lsp PIXELS additional space to put between lines\n\
324 --mouse-color, -ms COLOR mouse cursor color in Emacs window\n\
325 --name NAME title for initial Emacs frame\n\
326 --no-blinking-cursor, -nbc disable blinking cursor\n\
327 --reverse-video, -r, -rv switch foreground and background\n\
328 --title, -T TITLE title for initial Emacs frame\n\
329 --vertical-scroll-bars, -vb enable vertical scroll bars\n\
330 --xrm XRESOURCES set additional X resources\n\
331 --parent-id XID set parent window\n\
332 --help display this help and exit\n\
333 --version output version information and exit\n\
337 You can generally also specify long option names with a single -; for\n\
338 example, -batch as well as --batch. You can use any unambiguous\n\
339 abbreviation for a --option.\n\
341 Various environment variables and window system resources also affect\n\
342 Emacs' operation. See the main documentation.\n\
344 Report bugs to bug-gnu-emacs@gnu.org. First, please see the Bugs\n\
345 section of the Emacs manual or the file BUGS.\n"
348 /* Signal code for the fatal signal that was received. */
349 int fatal_error_code
;
351 /* Nonzero if handling a fatal error already. */
352 int fatal_error_in_progress
;
354 /* If non-null, call this function from fatal_error_signal before
355 committing suicide. */
357 void (*fatal_error_signal_hook
) P_ ((void));
359 #ifdef FORWARD_SIGNAL_TO_MAIN_THREAD
360 /* When compiled with GTK and running under Gnome,
361 multiple threads may be created. Keep track of our main
362 thread to make sure signals are delivered to it (see syssignal.h). */
364 pthread_t main_thread
;
368 /* Handle bus errors, invalid instruction, etc. */
370 fatal_error_signal (sig
)
373 SIGNAL_THREAD_CHECK (sig
);
374 fatal_error_code
= sig
;
375 signal (sig
, SIG_DFL
);
377 TOTALLY_UNBLOCK_INPUT
;
379 /* If fatal error occurs in code below, avoid infinite recursion. */
380 if (! fatal_error_in_progress
)
382 fatal_error_in_progress
= 1;
384 if (sig
== SIGTERM
|| sig
== SIGHUP
)
385 Fkill_emacs (make_number (sig
));
387 shut_down_emacs (sig
, 0, Qnil
);
390 /* Signal the same code; this time it will really be fatal.
391 Remember that since we're in a signal handler, the signal we're
392 going to send is probably blocked, so we have to unblock it if we
393 want to really receive it. */
395 sigunblock (sigmask (fatal_error_code
));
398 if (fatal_error_signal_hook
)
399 fatal_error_signal_hook ();
401 kill (getpid (), fatal_error_code
);
406 /* Handler for SIGDANGER. */
408 memory_warning_signal (sig
)
411 signal (sig
, memory_warning_signal
);
412 SIGNAL_THREAD_CHECK (sig
);
414 malloc_warning ("Operating system warns that virtual memory is running low.\n");
416 /* It might be unsafe to call do_auto_save now. */
417 force_auto_save_soon ();
421 /* We define abort, rather than using it from the library,
422 so that GDB can return from a breakpoint here.
423 MSDOS has its own definition in msdos.c. */
425 #if ! defined (DOS_NT) && ! defined (NO_ABORT)
430 kill (getpid (), SIGABRT
);
431 /* This shouldn't be executed, but it prevents a warning. */
437 /* Code for dealing with Lisp access to the Unix command line. */
440 init_cmdargs (argc
, argv
, skip_args
)
446 Lisp_Object name
, dir
, tem
;
447 int count
= SPECPDL_INDEX ();
448 Lisp_Object raw_name
;
453 raw_name
= build_string (argv
[0]);
455 /* Add /: to the front of the name
456 if it would otherwise be treated as magic. */
457 tem
= Ffind_file_name_handler (raw_name
, Qt
);
459 raw_name
= concat2 (build_string ("/:"), raw_name
);
461 Vinvocation_name
= Ffile_name_nondirectory (raw_name
);
462 Vinvocation_directory
= Ffile_name_directory (raw_name
);
464 /* If we got no directory in argv[0], search PATH to find where
465 Emacs actually came from. */
466 if (NILP (Vinvocation_directory
))
469 int yes
= openp (Vexec_path
, Vinvocation_name
,
470 Vexec_suffixes
, &found
, make_number (X_OK
));
473 /* Add /: to the front of the name
474 if it would otherwise be treated as magic. */
475 tem
= Ffind_file_name_handler (found
, Qt
);
477 found
= concat2 (build_string ("/:"), found
);
478 Vinvocation_directory
= Ffile_name_directory (found
);
482 if (!NILP (Vinvocation_directory
)
483 && NILP (Ffile_name_absolute_p (Vinvocation_directory
)))
484 /* Emacs was started with relative path, like ./emacs.
486 Vinvocation_directory
= Fexpand_file_name (Vinvocation_directory
, Qnil
);
488 Vinstallation_directory
= Qnil
;
490 if (!NILP (Vinvocation_directory
))
492 dir
= Vinvocation_directory
;
493 name
= Fexpand_file_name (Vinvocation_name
, dir
);
496 Lisp_Object tem
, lib_src_exists
;
497 Lisp_Object etc_exists
, info_exists
;
499 /* See if dir contains subdirs for use by Emacs.
500 Check for the ones that would exist in a build directory,
501 not including lisp and info. */
502 tem
= Fexpand_file_name (build_string ("lib-src"), dir
);
503 lib_src_exists
= Ffile_exists_p (tem
);
506 /* MSDOS installations frequently remove lib-src, but we still
507 must set installation-directory, or else info won't find
508 its files (it uses the value of installation-directory). */
509 tem
= Fexpand_file_name (build_string ("info"), dir
);
510 info_exists
= Ffile_exists_p (tem
);
515 if (!NILP (lib_src_exists
) || !NILP (info_exists
))
517 tem
= Fexpand_file_name (build_string ("etc"), dir
);
518 etc_exists
= Ffile_exists_p (tem
);
519 if (!NILP (etc_exists
))
521 Vinstallation_directory
522 = Ffile_name_as_directory (dir
);
527 /* See if dir's parent contains those subdirs. */
528 tem
= Fexpand_file_name (build_string ("../lib-src"), dir
);
529 lib_src_exists
= Ffile_exists_p (tem
);
533 /* See the MSDOS commentary above. */
534 tem
= Fexpand_file_name (build_string ("../info"), dir
);
535 info_exists
= Ffile_exists_p (tem
);
540 if (!NILP (lib_src_exists
) || !NILP (info_exists
))
542 tem
= Fexpand_file_name (build_string ("../etc"), dir
);
543 etc_exists
= Ffile_exists_p (tem
);
544 if (!NILP (etc_exists
))
546 tem
= Fexpand_file_name (build_string (".."), dir
);
547 Vinstallation_directory
548 = Ffile_name_as_directory (tem
);
553 /* If the Emacs executable is actually a link,
554 next try the dir that the link points into. */
555 tem
= Ffile_symlink_p (name
);
558 name
= Fexpand_file_name (tem
, dir
);
559 dir
= Ffile_name_directory (name
);
566 Vcommand_line_args
= Qnil
;
568 for (i
= argc
- 1; i
>= 0; i
--)
570 if (i
== 0 || i
> skip_args
)
571 /* For the moment, we keep arguments as is in unibyte strings.
572 They are decoded in the function command-line after we know
573 locale-coding-system. */
575 = Fcons (make_unibyte_string (argv
[i
], strlen (argv
[i
])),
579 unbind_to (count
, Qnil
);
582 DEFUN ("invocation-name", Finvocation_name
, Sinvocation_name
, 0, 0, 0,
583 doc
: /* Return the program name that was used to run Emacs.
584 Any directory names are omitted. */)
587 return Fcopy_sequence (Vinvocation_name
);
590 DEFUN ("invocation-directory", Finvocation_directory
, Sinvocation_directory
,
592 doc
: /* Return the directory name in which the Emacs executable was located. */)
595 return Fcopy_sequence (Vinvocation_directory
);
600 /* A valid but unlikely value for the TZ environment value.
601 It is OK (though a bit slower) if the user actually chooses this value. */
602 static char dump_tz
[] = "UtC0";
605 #ifndef ORDINARY_LINK
606 /* We don't include crtbegin.o and crtend.o in the link,
607 so these functions and variables might be missed.
608 Provide dummy definitions to avoid error.
609 (We don't have any real constructors or destructors.) */
611 #ifndef GCC_CTORS_IN_LIBC
612 void __do_global_ctors ()
614 void __do_global_ctors_aux ()
616 void __do_global_dtors ()
618 /* GNU/Linux has a bug in its library; avoid an error. */
620 char * __CTOR_LIST__
[2] = { (char *) (-1), 0 };
622 char * __DTOR_LIST__
[2] = { (char *) (-1), 0 };
623 #endif /* GCC_CTORS_IN_LIBC */
626 #endif /* __GNUC__ */
627 #endif /* ORDINARY_LINK */
629 /* Test whether the next argument in ARGV matches SSTR or a prefix of
630 LSTR (at least MINLEN characters). If so, then if VALPTR is non-null
631 (the argument is supposed to have a value) store in *VALPTR either
632 the next argument or the portion of this one after the equal sign.
633 ARGV is read starting at position *SKIPPTR; this index is advanced
634 by the number of arguments used.
636 Too bad we can't just use getopt for all of this, but we don't have
637 enough information to do it right. */
640 argmatch (argv
, argc
, sstr
, lstr
, minlen
, valptr
, skipptr
)
653 /* Don't access argv[argc]; give up in advance. */
654 if (argc
<= *skipptr
+ 1)
657 arg
= argv
[*skipptr
+1];
660 if (strcmp (arg
, sstr
) == 0)
664 *valptr
= argv
[*skipptr
+2];
671 arglen
= (valptr
!= NULL
&& (p
= index (arg
, '=')) != NULL
672 ? p
- arg
: strlen (arg
));
673 if (lstr
== 0 || arglen
< minlen
|| strncmp (arg
, lstr
, arglen
) != 0)
675 else if (valptr
== NULL
)
686 else if (argv
[*skipptr
+2] != NULL
)
688 *valptr
= argv
[*skipptr
+2];
698 #ifdef DOUG_LEA_MALLOC
700 /* malloc can be invoked even before main (e.g. by the dynamic
701 linker), so the dumped malloc state must be restored as early as
702 possible using this special hook. */
705 malloc_initialize_hook ()
708 extern char **environ
;
713 if (!malloc_using_checking
)
714 /* Work around a bug in glibc's malloc. MALLOC_CHECK_ must be
715 ignored if the heap to be restored was constructed without
716 malloc checking. Can't use unsetenv, since that calls malloc. */
720 for (p
= environ
; p
&& *p
; p
++)
721 if (strncmp (*p
, "MALLOC_CHECK_=", 14) == 0)
730 malloc_set_state (malloc_state_ptr
);
731 #ifndef XMALLOC_OVERRUN_CHECK
732 free (malloc_state_ptr
);
737 if (my_heap_start
== 0)
738 my_heap_start
= sbrk (0);
739 malloc_using_checking
= getenv ("MALLOC_CHECK_") != NULL
;
743 void (*__malloc_initialize_hook
) () = malloc_initialize_hook
;
745 #endif /* DOUG_LEA_MALLOC */
750 main (int argc
, char **argv
)
755 char stack_bottom_variable
;
756 int do_initial_setlocale
;
758 #ifdef HAVE_SETRLIMIT
770 extern Lisp_Object
*stack_base
;
774 #if defined (USE_GTK) && defined (G_SLICE_ALWAYS_MALLOC)
775 /* This is used by the Cygwin build. */
776 setenv ("G_SLICE", "always-malloc", 1);
781 extern char my_endbss
[];
782 extern char *my_endbss_static
;
784 if (my_heap_start
== 0)
785 my_heap_start
= sbrk (0);
787 heap_bss_diff
= (char *)my_heap_start
- max (my_endbss
, my_endbss_static
);
790 #ifdef RUN_TIME_REMAP
792 run_time_remap (argv
[0]);
795 /* If using unexmacosx.c (set by s/darwin.h), we must do this. */
798 unexec_init_emacs_zone ();
801 sort_args (argc
, argv
);
803 while (argv
[argc
]) argc
++;
805 if (argmatch (argv
, argc
, "-version", "--version", 3, NULL
, &skip_args
)
806 /* We don't know the version number unless this is a dumped Emacs.
807 So ignore --version otherwise. */
810 Lisp_Object tem
, tem2
;
811 tem
= Fsymbol_value (intern_c_string ("emacs-version"));
812 tem2
= Fsymbol_value (intern_c_string ("emacs-copyright"));
815 fprintf (stderr
, "Invalid value of `emacs-version'\n");
820 fprintf (stderr
, "Invalid value of `emacs-copyright'\n");
825 printf ("GNU Emacs %s\n", SDATA (tem
));
826 printf ("%s\n", SDATA(tem2
));
827 printf ("GNU Emacs comes with ABSOLUTELY NO WARRANTY.\n");
828 printf ("You may redistribute copies of Emacs\n");
829 printf ("under the terms of the GNU General Public License.\n");
830 printf ("For more information about these matters, ");
831 printf ("see the file named COPYING.\n");
835 if (argmatch (argv
, argc
, "-chdir", "--chdir", 2, &ch_to_dir
, &skip_args
))
836 if (chdir (ch_to_dir
) == -1)
838 fprintf (stderr
, "%s: Can't chdir to %s: %s\n",
839 argv
[0], ch_to_dir
, strerror (errno
));
844 #ifdef HAVE_PERSONALITY_LINUX32
846 && (strcmp (argv
[argc
-1], "dump") == 0
847 || strcmp (argv
[argc
-1], "bootstrap") == 0)
848 && ! getenv ("EMACS_HEAP_EXEC"))
850 /* Set this so we only do this once. */
851 putenv("EMACS_HEAP_EXEC=true");
853 /* A flag to turn off address randomization which is introduced
854 in linux kernel shipped with fedora core 4 */
855 #define ADD_NO_RANDOMIZE 0x0040000
856 personality (PER_LINUX32
| ADD_NO_RANDOMIZE
);
857 #undef ADD_NO_RANDOMIZE
859 execvp (argv
[0], argv
);
861 /* If the exec fails, try to dump anyway. */
864 #endif /* HAVE_PERSONALITY_LINUX32 */
867 /* Map in shared memory, if we are using that. */
869 if (argmatch (argv
, argc
, "-nl", "--no-shared-memory", 6, NULL
, &skip_args
))
872 /* The shared memory was just restored, which clobbered this. */
878 /* The shared memory was just restored, which clobbered this. */
883 #if defined (HAVE_SETRLIMIT) && defined (RLIMIT_STACK)
884 /* Extend the stack space available.
885 Don't do that if dumping, since some systems (e.g. DJGPP)
886 might define a smaller stack limit at that time. */
889 && (!noninteractive
|| initialized
)
891 && !getrlimit (RLIMIT_STACK
, &rlim
))
894 extern size_t re_max_failures
;
895 /* Approximate the amount regex.c needs per unit of re_max_failures. */
896 int ratio
= 20 * sizeof (char *);
897 /* Then add 33% to cover the size of the smaller stacks that regex.c
898 successively allocates and discards, on its way to the maximum. */
900 /* Add in some extra to cover
901 what we're likely to use for other reasons. */
902 newlim
= re_max_failures
* ratio
+ 200000;
904 /* NetBSD (at least NetBSD 1.2G and former) has a bug in its
905 stack allocation routine for new process that the allocation
906 fails if stack limit is not on page boundary. So, round up the
907 new limit to page boundary. */
908 newlim
= (newlim
+ getpagesize () - 1) / getpagesize () * getpagesize();
910 if (newlim
> rlim
.rlim_max
)
912 newlim
= rlim
.rlim_max
;
913 /* Don't let regex.c overflow the stack we have. */
914 re_max_failures
= (newlim
- 200000) / ratio
;
916 if (rlim
.rlim_cur
< newlim
)
917 rlim
.rlim_cur
= newlim
;
919 setrlimit (RLIMIT_STACK
, &rlim
);
921 #endif /* HAVE_SETRLIMIT and RLIMIT_STACK */
923 /* Record (approximately) where the stack begins. */
924 stack_bottom
= &stack_bottom_variable
;
928 #ifndef SYSTEM_MALLOC
929 /* Arrange to get warning messages as memory fills up. */
930 memory_warnings (0, malloc_warning
);
932 /* Call malloc at least once, to run the initial __malloc_hook.
933 Also call realloc and free for consistency. */
934 free (realloc (malloc (4), 4));
937 /* Arrange to disable interrupt input inside malloc etc. */
938 uninterrupt_malloc ();
939 # endif /* not SYNC_INPUT */
940 #endif /* not SYSTEM_MALLOC */
942 #ifdef FORWARD_SIGNAL_TO_MAIN_THREAD
943 main_thread
= pthread_self ();
944 #endif /* FORWARD_SIGNAL_TO_MAIN_THREAD */
946 #if defined (MSDOS) || defined (WINDOWSNT)
947 /* We do all file input/output as binary files. When we need to translate
948 newlines, we do that manually. */
950 #endif /* MSDOS || WINDOWSNT */
953 if (!isatty (fileno (stdin
)))
954 setmode (fileno (stdin
), O_BINARY
);
955 if (!isatty (fileno (stdout
)))
958 setmode (fileno (stdout
), O_BINARY
);
962 #ifdef SET_EMACS_PRIORITY
964 nice (emacs_priority
);
966 #endif /* SET_EMACS_PRIORITY */
968 /* Skip initial setlocale if LC_ALL is "C", as it's not needed in that case.
969 The build procedure uses this while dumping, to ensure that the
970 dumped Emacs does not have its system locale tables initialized,
971 as that might cause screwups when the dumped Emacs starts up. */
973 char *lc_all
= getenv ("LC_ALL");
974 do_initial_setlocale
= ! lc_all
|| strcmp (lc_all
, "C");
977 /* Set locale now, so that initial error messages are localized properly.
978 fixup_locale must wait until later, since it builds strings. */
979 if (do_initial_setlocale
)
980 setlocale (LC_ALL
, "");
982 inhibit_window_system
= 0;
984 /* Handle the -t switch, which specifies filename to use as terminal. */
988 if (argmatch (argv
, argc
, "-t", "--terminal", 4, &term
, &skip_args
))
993 result
= emacs_open (term
, O_RDWR
, 0);
996 char *errstring
= strerror (errno
);
997 fprintf (stderr
, "%s: %s: %s\n", argv
[0], term
, errstring
);
1003 fprintf (stderr
, "%s: %s: not a tty\n", argv
[0], term
);
1006 fprintf (stderr
, "Using %s\n", term
);
1007 #ifdef HAVE_WINDOW_SYSTEM
1008 inhibit_window_system
= 1; /* -t => -nw */
1015 /* Command line option --no-windows is deprecated and thus not mentioned
1016 in the manual and usage informations. */
1017 if (argmatch (argv
, argc
, "-nw", "--no-window-system", 6, NULL
, &skip_args
)
1018 || argmatch (argv
, argc
, "-nw", "--no-windows", 6, NULL
, &skip_args
))
1019 inhibit_window_system
= 1;
1021 /* Handle the -batch switch, which means don't do interactive display. */
1023 if (argmatch (argv
, argc
, "-batch", "--batch", 5, NULL
, &skip_args
))
1026 Vundo_outer_limit
= Qnil
;
1028 if (argmatch (argv
, argc
, "-script", "--script", 3, &junk
, &skip_args
))
1030 noninteractive
= 1; /* Set batch mode. */
1031 /* Convert --script to -scriptload, un-skip it, and sort again
1032 so that it will be handled in proper sequence. */
1033 /* FIXME broken for --script=FILE - is that supposed to work? */
1034 argv
[skip_args
- 1] = "-scriptload";
1036 sort_args (argc
, argv
);
1039 /* Handle the --help option, which gives a usage message. */
1040 if (argmatch (argv
, argc
, "-help", "--help", 3, NULL
, &skip_args
))
1042 printf (USAGE1
, argv
[0], USAGE2
);
1048 if (argmatch (argv
, argc
, "-daemon", "--daemon", 5, NULL
, &skip_args
)
1049 || argmatch (argv
, argc
, "-daemon", "--daemon", 5, &dname_arg
, &skip_args
))
1054 /* Start as a daemon: fork a new child process which will run the
1055 rest of the initialization code, then exit.
1057 Detaching a daemon requires the following steps:
1061 - close the tty file-descriptors
1063 We only want to do the last 2 steps once the daemon is ready to
1064 serve requests, i.e. after loading .emacs (initialization).
1065 OTOH initialization may start subprocesses (e.g. ispell) and these
1066 should be run from the proper process (the one that will end up
1067 running as daemon) and with the proper "session id" in order for
1068 them to keep working after detaching, so fork and setsid need to be
1069 performed before initialization.
1071 We want to avoid exiting before the server socket is ready, so
1072 use a pipe for synchronization. The parent waits for the child
1073 to close its end of the pipe (using `daemon-initialized')
1075 if (pipe (daemon_pipe
) == -1)
1077 fprintf (stderr
, "Cannot pipe!\n");
1081 #ifndef NS_IMPL_COCOA
1083 #else /* NS_IMPL_COCOA */
1084 /* Under Cocoa we must do fork+exec as CoreFoundation lib fails in
1085 forked process: http://developer.apple.com/ReleaseNotes/
1086 CoreFoundation/CoreFoundation.html)
1087 We mark being in the exec'd process by a daemon name argument of
1088 form "--daemon=\nFD0,FD1\nNAME" where FD are the pipe file descriptors,
1089 NAME is the original daemon name, if any. */
1090 if (!dname_arg
|| !strchr (dname_arg
, '\n'))
1091 f
= fork (); /* in orig */
1093 f
= 0; /* in exec'd */
1094 #endif /* NS_IMPL_COCOA */
1100 /* Close unused writing end of the pipe. */
1101 close (daemon_pipe
[1]);
1103 /* Just wait for the child to close its end of the pipe. */
1106 retval
= read (daemon_pipe
[0], &buf
, 1);
1108 while (retval
== -1 && errno
== EINTR
);
1112 fprintf (stderr
, "Error reading status from child\n");
1115 else if (retval
== 0)
1117 fprintf (stderr
, "Error: server did not start correctly\n");
1121 close (daemon_pipe
[0]);
1126 fprintf (stderr
, "Cannot fork!\n");
1130 #ifdef NS_IMPL_COCOA
1132 /* In orig process, forked as child, OR in exec'd. */
1133 if (!dname_arg
|| !strchr (dname_arg
, '\n'))
1134 { /* In orig, child: now exec w/special daemon name. */
1137 if (dname_arg
&& strlen (dname_arg
) > 70)
1139 fprintf (stderr
, "daemon: child name too long\n");
1143 sprintf (fdStr
, "--daemon=\n%d,%d\n%s", daemon_pipe
[0],
1144 daemon_pipe
[1], dname_arg
? dname_arg
: "");
1145 argv
[skip_args
] = fdStr
;
1147 execv (argv
[0], argv
);
1148 fprintf (stderr
, "emacs daemon: exec failed: %d\n", errno
);
1152 /* In exec'd: parse special dname into pipe and name info. */
1153 if (!dname_arg
|| !strchr (dname_arg
, '\n')
1154 || strlen (dname_arg
) < 1 || strlen (dname_arg
) > 70)
1156 fprintf (stderr
, "emacs daemon: daemon name absent or too long\n");
1159 dname_arg2
[0] = '\0';
1160 sscanf (dname_arg
, "\n%d,%d\n%s", &(daemon_pipe
[0]), &(daemon_pipe
[1]),
1162 dname_arg
= strlen (dname_arg2
) ? dname_arg2
: NULL
;
1164 #endif /* NS_IMPL_COCOA */
1167 daemon_name
= xstrdup (dname_arg
);
1168 /* Close unused reading end of the pipe. */
1169 close (daemon_pipe
[0]);
1170 /* Make sure that the used end of the pipe is closed on exec, so
1171 that it is not accessible to programs started from .emacs. */
1172 fcntl (daemon_pipe
[1], F_SETFD
, FD_CLOEXEC
);
1178 fprintf (stderr
, "This platform does not support the -daemon flag.\n");
1183 if (! noninteractive
)
1185 #if defined (USG5) && defined (INTERRUPT_INPUT)
1188 #if defined (HAVE_GTK_AND_PTHREAD) && !defined (SYSTEM_MALLOC) && !defined (DOUG_LEA_MALLOC)
1190 extern void malloc_enable_thread
P_ ((void));
1192 malloc_enable_thread ();
1199 /* Don't catch SIGHUP if dumping. */
1206 sigblock (sigmask (SIGHUP
));
1207 /* In --batch mode, don't catch SIGHUP if already ignored.
1208 That makes nohup work. */
1209 if (! noninteractive
1210 || signal (SIGHUP
, SIG_IGN
) != SIG_IGN
)
1211 signal (SIGHUP
, fatal_error_signal
);
1212 sigunblock (sigmask (SIGHUP
));
1217 ! noninteractive
|| initialized
1223 /* Don't catch these signals in batch mode if dumping.
1224 On some machines, this sets static data that would make
1225 signal fail to work right when the dumped Emacs is run. */
1226 signal (SIGQUIT
, fatal_error_signal
);
1227 signal (SIGILL
, fatal_error_signal
);
1228 signal (SIGTRAP
, fatal_error_signal
);
1230 add_user_signal (SIGUSR1
, "sigusr1");
1233 add_user_signal (SIGUSR2
, "sigusr2");
1236 signal (SIGABRT
, fatal_error_signal
);
1239 signal (SIGHWE
, fatal_error_signal
);
1242 signal (SIGPRE
, fatal_error_signal
);
1245 signal (SIGORE
, fatal_error_signal
);
1248 signal (SIGUME
, fatal_error_signal
);
1251 signal (SIGDLK
, fatal_error_signal
);
1254 signal (SIGCPULIM
, fatal_error_signal
);
1257 /* This is missing on some systems - OS/2, for example. */
1258 signal (SIGIOT
, fatal_error_signal
);
1261 signal (SIGEMT
, fatal_error_signal
);
1263 signal (SIGFPE
, fatal_error_signal
);
1265 signal (SIGBUS
, fatal_error_signal
);
1267 signal (SIGSEGV
, fatal_error_signal
);
1269 signal (SIGSYS
, fatal_error_signal
);
1271 signal (SIGTERM
, fatal_error_signal
);
1273 signal (SIGXCPU
, fatal_error_signal
);
1276 signal (SIGXFSZ
, fatal_error_signal
);
1277 #endif /* SIGXFSZ */
1280 /* This just means available memory is getting low. */
1281 signal (SIGDANGER
, memory_warning_signal
);
1285 /* 20 is SIGCHLD, 21 is SIGTTIN, 22 is SIGTTOU. */
1286 signal (SIGXCPU
, fatal_error_signal
);
1288 signal (SIGIOINT
, fatal_error_signal
);
1290 signal (SIGGRANT
, fatal_error_signal
);
1291 signal (SIGRETRACT
, fatal_error_signal
);
1292 signal (SIGSOUND
, fatal_error_signal
);
1293 signal (SIGMSG
, fatal_error_signal
);
1297 noninteractive1
= noninteractive
;
1299 /* Perform basic initializations (not merely interning symbols). */
1306 init_character_once ();
1307 init_charset_once ();
1308 init_coding_once ();
1309 init_syntax_once (); /* Create standard syntax table. */
1310 init_category_once (); /* Create standard category table. */
1311 /* Must be done before init_buffer. */
1312 init_casetab_once ();
1313 init_buffer_once (); /* Create buffer table and some buffers. */
1314 init_minibuf_once (); /* Create list of minibuffers. */
1315 /* Must precede init_window_once. */
1317 /* Call syms_of_xfaces before init_window_once because that
1318 function creates Vterminal_frame. Termcap frames now use
1319 faces, and the face implementation uses some symbols as
1322 /* XXX syms_of_keyboard uses some symbols in keymap.c. It would
1323 be better to arrange things not to have this dependency. */
1325 /* Call syms_of_keyboard before init_window_once because
1326 keyboard sets up symbols that include some face names that
1327 the X support will want to use. This can happen when
1328 CANNOT_DUMP is defined. */
1329 syms_of_keyboard ();
1331 /* Called before syms_of_fileio, because it sets up Qerror_condition. */
1334 /* Before syms_of_coding to initialize Vgc_cons_threshold. */
1336 /* Before syms_of_coding because it initializes Qcharsetp. */
1338 /* Before init_window_once, because it sets up the
1339 Vcoding_system_hash_table. */
1340 syms_of_coding (); /* This should be after syms_of_fileio. */
1342 init_window_once (); /* Init the window system. */
1343 #ifdef HAVE_WINDOW_SYSTEM
1344 init_fringe_once (); /* Swap bitmaps if necessary. */
1345 #endif /* HAVE_WINDOW_SYSTEM */
1350 if (do_initial_setlocale
)
1353 Vsystem_messages_locale
= Vprevious_system_messages_locale
;
1354 Vsystem_time_locale
= Vprevious_system_time_locale
;
1359 #ifdef CLASH_DETECTION
1363 running_asynch_code
= 0;
1365 /* Handle --unibyte and the EMACS_UNIBYTE envvar,
1366 but not while dumping. */
1369 int inhibit_unibyte
= 0;
1371 /* --multibyte overrides EMACS_UNIBYTE. */
1372 if (argmatch (argv
, argc
, "-no-unibyte", "--no-unibyte", 4, NULL
, &skip_args
)
1373 || argmatch (argv
, argc
, "-multibyte", "--multibyte", 4, NULL
, &skip_args
)
1374 /* Ignore EMACS_UNIBYTE before dumping. */
1375 || (!initialized
&& noninteractive
))
1376 inhibit_unibyte
= 1;
1378 /* --unibyte requests that we set up to do everything with single-byte
1379 buffers and strings. We need to handle this before calling
1380 init_lread, init_editfns and other places that generate Lisp strings
1381 from text in the environment. */
1382 /* Actually this shouldn't be needed as of 20.4 in a generally
1383 unibyte environment. As handa says, environment values
1384 aren't now decoded; also existing buffers are now made
1385 unibyte during startup if .emacs sets unibyte. Tested with
1386 8-bit data in environment variables and /etc/passwd, setting
1387 unibyte and Latin-1 in .emacs. -- Dave Love */
1388 if (argmatch (argv
, argc
, "-unibyte", "--unibyte", 4, NULL
, &skip_args
)
1389 || argmatch (argv
, argc
, "-no-multibyte", "--no-multibyte", 4, NULL
, &skip_args
)
1390 || (getenv ("EMACS_UNIBYTE") && !inhibit_unibyte
))
1392 Lisp_Object old_log_max
;
1393 Lisp_Object symbol
, tail
;
1395 symbol
= intern_c_string ("enable-multibyte-characters");
1396 Fset_default (symbol
, Qnil
);
1400 /* Erase pre-dump messages in *Messages* now so no abort. */
1401 old_log_max
= Vmessage_log_max
;
1402 XSETFASTINT (Vmessage_log_max
, 0);
1403 message_dolog ("", 0, 1, 0);
1404 Vmessage_log_max
= old_log_max
;
1407 for (tail
= Vbuffer_alist
; CONSP (tail
);
1412 buffer
= Fcdr (XCAR (tail
));
1413 /* Make a multibyte buffer unibyte. */
1414 if (BUF_Z_BYTE (XBUFFER (buffer
)) > BUF_Z (XBUFFER (buffer
)))
1416 struct buffer
*current
= current_buffer
;
1418 set_buffer_temp (XBUFFER (buffer
));
1419 Fset_buffer_multibyte (Qnil
);
1420 set_buffer_temp (current
);
1423 message ("Warning: unibyte sessions are obsolete and will disappear");
1428 = argmatch (argv
, argc
, "-nl", "--no-loadup", 6, NULL
, &skip_args
);
1431 ns_alloc_autorelease_pool();
1432 if (!noninteractive
)
1434 #ifdef NS_IMPL_COCOA
1435 if (skip_args
< argc
)
1437 if (!strncmp(argv
[skip_args
], "-psn", 4))
1440 chdir (getenv ("HOME"));
1442 else if (skip_args
+1 < argc
&& !strncmp(argv
[skip_args
+1], "-psn", 4))
1445 chdir (getenv ("HOME"));
1450 #endif /* HAVE_NS */
1452 #ifdef HAVE_X_WINDOWS
1453 /* Stupid kludge to catch command-line display spec. We can't
1454 handle this argument entirely in window system dependent code
1455 because we don't even know which window system dependent code
1456 to run until we've recognized this argument. */
1458 char *displayname
= 0;
1459 int count_before
= skip_args
;
1461 /* Skip any number of -d options, but only use the last one. */
1464 int count_before_this
= skip_args
;
1466 if (argmatch (argv
, argc
, "-d", "--display", 3, &displayname
, &skip_args
))
1468 else if (argmatch (argv
, argc
, "-display", 0, 3, &displayname
, &skip_args
))
1473 count_before
= count_before_this
;
1476 /* If we have the form --display=NAME,
1477 convert it into -d name.
1478 This requires inserting a new element into argv. */
1479 if (displayname
!= 0 && skip_args
- count_before
== 1)
1481 char **new = (char **) xmalloc (sizeof (char *) * (argc
+ 2));
1484 for (j
= 0; j
< count_before
+ 1; j
++)
1486 new[count_before
+ 1] = "-d";
1487 new[count_before
+ 2] = displayname
;
1488 for (j
= count_before
+ 2; j
<argc
; j
++)
1489 new[j
+ 1] = argv
[j
];
1493 /* Change --display to -d, when its arg is separate. */
1494 else if (displayname
!= 0 && skip_args
> count_before
1495 && argv
[count_before
+ 1][1] == '-')
1496 argv
[count_before
+ 1] = "-d";
1498 /* Don't actually discard this arg. */
1499 skip_args
= count_before
;
1503 /* argmatch must not be used after here,
1504 except when bulding temacs
1505 because the -d argument has not been skipped in skip_args. */
1508 /* Call early 'cause init_environment needs it. */
1510 /* Set defaults for several environment variables. */
1512 init_environment (argc
, argv
, skip_args
);
1519 /* Initialize environment from registry settings. */
1520 init_environment (argv
);
1521 init_ntproc (); /* must precede init_editfns. */
1531 /* egetenv is a pretty low-level facility, which may get called in
1532 many circumstances; it seems flimsy to put off initializing it
1533 until calling init_callproc. */
1534 set_initial_environment ();
1535 /* AIX crashes are reported in system versions 3.2.3 and 3.2.4
1536 if this is not done. Do it after set_global_environment so that we
1537 don't pollute Vglobal_environment. */
1538 /* Setting LANG here will defeat the startup locale processing... */
1543 init_buffer (); /* Init default directory of main buffer. */
1545 init_callproc_1 (); /* Must precede init_cmdargs and init_sys_modes. */
1546 init_cmdargs (argc
, argv
, skip_args
); /* Must precede init_lread. */
1550 /* Erase any pre-dump messages in the message log, to avoid confusion. */
1551 Lisp_Object old_log_max
;
1552 old_log_max
= Vmessage_log_max
;
1553 XSETFASTINT (Vmessage_log_max
, 0);
1554 message_dolog ("", 0, 1, 0);
1555 Vmessage_log_max
= old_log_max
;
1558 init_callproc (); /* Must follow init_cmdargs but not init_sys_modes. */
1561 /* Intern the names of all standard functions and variables;
1562 define standard keys. */
1566 /* The basic levels of Lisp must come first. Note that
1567 syms_of_data and some others have already been called. */
1573 syms_of_floatfns ();
1576 syms_of_bytecode ();
1578 syms_of_casefiddle ();
1580 syms_of_callproc ();
1581 syms_of_category ();
1583 syms_of_character ();
1590 #ifdef CLASH_DETECTION
1591 syms_of_filelock ();
1592 #endif /* CLASH_DETECTION */
1595 /* syms_of_keymap (); */
1603 syms_of_terminal ();
1609 syms_of_textprop ();
1610 syms_of_composite ();
1613 #endif /* WINDOWSNT */
1617 #ifdef HAVE_WINDOW_SYSTEM
1620 #endif /* HAVE_WINDOW_SYSTEM */
1621 #ifdef HAVE_X_WINDOWS
1626 syms_of_xsettings ();
1633 #endif /* HAVE_X_WINDOWS */
1640 syms_of_w32select ();
1643 #endif /* HAVE_NTGUI */
1653 syms_of_nsselect ();
1655 #endif /* HAVE_NS */
1658 syms_of_dbusbind ();
1659 #endif /* HAVE_DBUS */
1669 keys_of_casefiddle ();
1672 keys_of_keyboard ();
1678 /* Initialization that must be done even if the global variable
1679 initialized is non zero. */
1681 globals_of_w32fns ();
1682 globals_of_w32menu ();
1683 globals_of_w32select ();
1684 #endif /* HAVE_NTGUI */
1689 init_editfns (); /* init_process uses Voperating_system_release. */
1690 init_process (); /* init_display uses add_keyboard_wait_descriptor. */
1691 init_keyboard (); /* This too must precede init_sys_modes. */
1692 if (!noninteractive
)
1693 init_display (); /* Determine terminal type. Calls init_sys_modes. */
1696 #ifdef HAVE_WINDOW_SYSTEM
1699 #endif /* HAVE_WINDOW_SYSTEM */
1711 /* Handle -l loadup, args passed by Makefile. */
1712 if (argmatch (argv
, argc
, "-l", "--load", 3, &file
, &skip_args
))
1713 Vtop_level
= Fcons (intern_c_string ("load"),
1714 Fcons (build_string (file
), Qnil
));
1715 /* Unless next switch is -nl, load "loadup.el" first thing. */
1717 Vtop_level
= Fcons (intern_c_string ("load"),
1718 Fcons (build_string ("loadup.el"), Qnil
));
1725 /* If the execution TZ happens to be the same as the dump TZ,
1726 change it to some other value and then change it back,
1727 to force the underlying implementation to reload the TZ info.
1728 This is needed on implementations that load TZ info from files,
1729 since the TZ file contents may differ between dump and execution. */
1730 char *tz
= getenv ("TZ");
1731 if (tz
&& !strcmp (tz
, dump_tz
))
1741 /* Set up for profiling. This is known to work on FreeBSD,
1742 GNU/Linux and MinGW. It might work on some other systems too.
1743 Give it a try and tell us if it works on your system. To compile
1744 for profiling, use the configure option --enable-profiling. */
1745 #if defined (__FreeBSD__) || defined (GNU_LINUX) || defined(__MINGW32__)
1749 extern void _mcleanup ();
1751 extern unsigned char etext
asm ("etext");
1755 extern void safe_bcopy ();
1756 extern void dump_opcode_frequencies ();
1759 /* This uses safe_bcopy because that function comes first in the
1760 Emacs executable. It might be better to use something that
1761 gives the start of the text segment, but start_of_text is not
1762 defined on all systems now. */
1763 monstartup (safe_bcopy
, &etext
);
1772 #ifdef LOCALTIME_CACHE
1773 /* Some versions of localtime have a bug. They cache the value of the time
1774 zone rather than looking it up every time. Since localtime() is
1775 called to bolt the undumping time into the undumped emacs, this
1776 results in localtime ignoring the TZ environment variable.
1777 This flushes the new TZ value into localtime. */
1779 #endif /* defined (LOCALTIME_CACHE) */
1781 /* Enter editor command loop. This never returns. */
1787 /* Sort the args so we can find the most important ones
1788 at the beginning of argv. */
1790 /* First, here's a table of all the standard options. */
1792 struct standard_args
1795 const char *longname
;
1800 const struct standard_args standard_args
[] =
1802 { "-version", "--version", 150, 0 },
1803 { "-chdir", "--chdir", 130, 1 },
1804 { "-t", "--terminal", 120, 1 },
1805 { "-nw", "--no-window-system", 110, 0 },
1806 { "-nw", "--no-windows", 110, 0 },
1807 { "-batch", "--batch", 100, 0 },
1808 { "-script", "--script", 100, 1 },
1809 { "-daemon", "--daemon", 99, 0 },
1810 { "-help", "--help", 90, 0 },
1811 { "-no-unibyte", "--no-unibyte", 83, 0 },
1812 { "-multibyte", "--multibyte", 82, 0 },
1813 { "-unibyte", "--unibyte", 81, 0 },
1814 { "-no-multibyte", "--no-multibyte", 80, 0 },
1815 { "-nl", "--no-loadup", 70, 0 },
1816 /* -d must come last before the options handled in startup.el. */
1817 { "-d", "--display", 60, 1 },
1818 { "-display", 0, 60, 1 },
1819 /* Now for the options handled in `command-line' (startup.el). */
1820 { "-Q", "--quick", 55, 0 },
1821 { "-quick", 0, 55, 0 },
1822 { "-q", "--no-init-file", 50, 0 },
1823 { "-no-init-file", 0, 50, 0 },
1824 { "-no-site-file", "--no-site-file", 40, 0 },
1825 { "-u", "--user", 30, 1 },
1826 { "-user", 0, 30, 1 },
1827 { "-debug-init", "--debug-init", 20, 0 },
1828 { "-iconic", "--iconic", 15, 0 },
1829 { "-D", "--basic-display", 12, 0},
1830 { "-basic-display", 0, 12, 0},
1831 { "-nbc", "--no-blinking-cursor", 12, 0 },
1832 /* Now for the options handled in `command-line-1' (startup.el). */
1833 { "-nbi", "--no-bitmap-icon", 10, 0 },
1834 { "-bg", "--background-color", 10, 1 },
1835 { "-background", 0, 10, 1 },
1836 { "-fg", "--foreground-color", 10, 1 },
1837 { "-foreground", 0, 10, 1 },
1838 { "-bd", "--border-color", 10, 1 },
1839 { "-bw", "--border-width", 10, 1 },
1840 { "-ib", "--internal-border", 10, 1 },
1841 { "-ms", "--mouse-color", 10, 1 },
1842 { "-cr", "--cursor-color", 10, 1 },
1843 { "-fn", "--font", 10, 1 },
1844 { "-font", 0, 10, 1 },
1845 { "-fs", "--fullscreen", 10, 0 },
1846 { "-fw", "--fullwidth", 10, 0 },
1847 { "-fh", "--fullheight", 10, 0 },
1848 { "-mm", "--maximized", 10, 0 },
1849 { "-g", "--geometry", 10, 1 },
1850 { "-geometry", 0, 10, 1 },
1851 { "-T", "--title", 10, 1 },
1852 { "-title", 0, 10, 1 },
1853 { "-name", "--name", 10, 1 },
1854 { "-xrm", "--xrm", 10, 1 },
1855 { "-parent-id", "--parent-id", 10, 1 },
1856 { "-r", "--reverse-video", 5, 0 },
1858 { "-reverse", 0, 5, 0 },
1859 { "-hb", "--horizontal-scroll-bars", 5, 0 },
1860 { "-vb", "--vertical-scroll-bars", 5, 0 },
1861 { "-color", "--color", 5, 0},
1862 { "-no-splash", "--no-splash", 3, 0 },
1863 { "-no-desktop", "--no-desktop", 3, 0 },
1865 { "-NSAutoLaunch", 0, 5, 1 },
1866 { "-NXAutoLaunch", 0, 5, 1 },
1867 { "-disable-font-backend", "--disable-font-backend", 65, 0 },
1868 { "-_NSMachLaunch", 0, 85, 1 },
1869 { "-MachLaunch", 0, 85, 1 },
1870 { "-macosx", 0, 85, 0 },
1871 { "-NSHost", 0, 85, 1 },
1873 /* These have the same priority as ordinary file name args,
1874 so they are not reordered with respect to those. */
1875 { "-L", "--directory", 0, 1 },
1876 { "-directory", 0, 0, 1 },
1877 { "-l", "--load", 0, 1 },
1878 { "-load", 0, 0, 1 },
1879 /* This has no longname, because using --scriptload confuses sort_args,
1880 because then the --script long option seems to match twice; ie
1881 you can't have a long option which is a prefix of another long
1882 option. In any case, this is entirely an internal option. */
1883 { "-scriptload", NULL
, 0, 1 },
1884 { "-f", "--funcall", 0, 1 },
1885 { "-funcall", 0, 0, 1 },
1886 { "-eval", "--eval", 0, 1 },
1887 { "-execute", "--execute", 0, 1 },
1888 { "-find-file", "--find-file", 0, 1 },
1889 { "-visit", "--visit", 0, 1 },
1890 { "-file", "--file", 0, 1 },
1891 { "-insert", "--insert", 0, 1 },
1893 { "-NXOpen", 0, 0, 1 },
1894 { "-NXOpenTemp", 0, 0, 1 },
1895 { "-NSOpen", 0, 0, 1 },
1896 { "-NSOpenTemp", 0, 0, 1 },
1897 { "-GSFilePath", 0, 0, 1 },
1899 /* This should be processed after ordinary file name args and the like. */
1900 { "-kill", "--kill", -10, 0 },
1903 /* Reorder the elements of ARGV (assumed to have ARGC elements)
1904 so that the highest priority ones come first.
1905 Do not change the order of elements of equal priority.
1906 If an option takes an argument, keep it and its argument together.
1908 If an option that takes no argument appears more
1909 than once, eliminate all but one copy of it. */
1912 sort_args (argc
, argv
)
1916 char **new = (char **) xmalloc (sizeof (char *) * argc
);
1917 /* For each element of argv,
1918 the corresponding element of options is:
1919 0 for an option that takes no arguments,
1920 1 for an option that takes one argument, etc.
1921 -1 for an ordinary non-option argument. */
1922 int *options
= (int *) xmalloc (sizeof (int) * argc
);
1923 int *priority
= (int *) xmalloc (sizeof (int) * argc
);
1925 int incoming_used
= 1;
1929 /* Categorize all the options,
1930 and figure out which argv elts are option arguments. */
1931 for (from
= 1; from
< argc
; from
++)
1935 if (argv
[from
][0] == '-')
1940 /* If we have found "--", don't consider
1941 any more arguments as options. */
1942 if (argv
[from
][1] == '-' && argv
[from
][2] == 0)
1944 /* Leave the "--", and everything following it, at the end. */
1945 for (; from
< argc
; from
++)
1947 priority
[from
] = -100;
1953 /* Look for a match with a known old-fashioned option. */
1954 for (i
= 0; i
< sizeof (standard_args
) / sizeof (standard_args
[0]); i
++)
1955 if (!strcmp (argv
[from
], standard_args
[i
].name
))
1957 options
[from
] = standard_args
[i
].nargs
;
1958 priority
[from
] = standard_args
[i
].priority
;
1959 if (from
+ standard_args
[i
].nargs
>= argc
)
1960 fatal ("Option `%s' requires an argument\n", argv
[from
]);
1961 from
+= standard_args
[i
].nargs
;
1965 /* Look for a match with a known long option.
1966 MATCH is -1 if no match so far, -2 if two or more matches so far,
1967 >= 0 (the table index of the match) if just one match so far. */
1968 if (argv
[from
][1] == '-')
1971 thislen
= strlen (argv
[from
]);
1972 equals
= index (argv
[from
], '=');
1974 thislen
= equals
- argv
[from
];
1977 i
< sizeof (standard_args
) / sizeof (standard_args
[0]); i
++)
1978 if (standard_args
[i
].longname
1979 && !strncmp (argv
[from
], standard_args
[i
].longname
,
1988 /* If we found exactly one match, use that. */
1991 options
[from
] = standard_args
[match
].nargs
;
1992 priority
[from
] = standard_args
[match
].priority
;
1993 /* If --OPTION=VALUE syntax is used,
1994 this option uses just one argv element. */
1997 if (from
+ options
[from
] >= argc
)
1998 fatal ("Option `%s' requires an argument\n", argv
[from
]);
1999 from
+= options
[from
];
2001 /* FIXME When match < 0, shouldn't there be some error,
2002 or at least indication to the user that there was a
2009 /* Copy the arguments, in order of decreasing priority, to NEW. */
2011 while (incoming_used
< argc
)
2014 int best_priority
= -9999;
2016 /* Find the highest priority remaining option.
2017 If several have equal priority, take the first of them. */
2018 for (from
= 1; from
< argc
; from
++)
2020 if (argv
[from
] != 0 && priority
[from
] > best_priority
)
2022 best_priority
= priority
[from
];
2025 /* Skip option arguments--they are tied to the options. */
2026 if (options
[from
] > 0)
2027 from
+= options
[from
];
2033 /* Copy the highest priority remaining option, with its args, to NEW.
2034 Unless it is a duplicate of the previous one. */
2035 if (! (options
[best
] == 0
2036 && ! strcmp (new[to
- 1], argv
[best
])))
2038 new[to
++] = argv
[best
];
2039 for (i
= 0; i
< options
[best
]; i
++)
2040 new[to
++] = argv
[best
+ i
+ 1];
2043 incoming_used
+= 1 + (options
[best
] > 0 ? options
[best
] : 0);
2045 /* Clear out this option in ARGV. */
2047 for (i
= 0; i
< options
[best
]; i
++)
2048 argv
[best
+ i
+ 1] = 0;
2051 /* If duplicate options were deleted, fill up extra space with null ptrs. */
2055 bcopy (new, argv
, sizeof (char *) * argc
);
2062 DEFUN ("kill-emacs", Fkill_emacs
, Skill_emacs
, 0, 1, "P",
2063 doc
: /* Exit the Emacs job and kill it.
2064 If ARG is an integer, return ARG as the exit program code.
2065 If ARG is a string, stuff it as keyboard input.
2067 The value of `kill-emacs-hook', if not void,
2068 is a list of functions (of no args),
2069 all of which are called before Emacs is actually killed. */)
2073 struct gcpro gcpro1
;
2080 if (!NILP (Vrun_hooks
) && !noninteractive
)
2081 call1 (Vrun_hooks
, intern ("kill-emacs-hook"));
2085 shut_down_emacs (0, 0, STRINGP (arg
) ? arg
: Qnil
);
2087 /* If we have an auto-save list file,
2088 kill it because we are exiting Emacs deliberately (not crashing).
2089 Do it after shut_down_emacs, which does an auto-save. */
2090 if (STRINGP (Vauto_save_list_file_name
))
2091 unlink (SDATA (Vauto_save_list_file_name
));
2093 exit (INTEGERP (arg
) ? XINT (arg
) : EXIT_SUCCESS
);
2099 /* Perform an orderly shutdown of Emacs. Autosave any modified
2100 buffers, kill any child processes, clean up the terminal modes (if
2101 we're in the foreground), and other stuff like that. Don't perform
2102 any redisplay; this may be called when Emacs is shutting down in
2103 the background, or after its X connection has died.
2105 If SIG is a signal number, print a message for it.
2107 This is called by fatal signal handlers, X protocol error handlers,
2111 shut_down_emacs (sig
, no_x
, stuff
)
2115 /* Prevent running of hooks from now on. */
2118 /* Don't update display from now on. */
2119 Vinhibit_redisplay
= Qt
;
2121 /* If we are controlling the terminal, reset terminal modes. */
2122 #ifdef EMACS_HAVE_TTY_PGRP
2124 int pgrp
= EMACS_GETPGRP (0);
2127 if (EMACS_GET_TTY_PGRP (0, &tpgrp
) != -1
2130 reset_all_sys_modes ();
2131 if (sig
&& sig
!= SIGTERM
)
2132 fprintf (stderr
, "Fatal error (%d)", sig
);
2137 reset_all_sys_modes ();
2140 stuff_buffered_input (stuff
);
2143 inhibit_sentinels
= 1;
2145 kill_buffer_processes (Qnil
);
2146 Fdo_auto_save (Qt
, Qnil
);
2148 #ifdef CLASH_DETECTION
2149 unlock_all_files ();
2152 #if 0 /* This triggers a bug in XCloseDisplay and is not needed. */
2153 #ifdef HAVE_X_WINDOWS
2154 /* It's not safe to call intern here. Maybe we are crashing. */
2155 if (!noninteractive
&& SYMBOLP (Vinitial_window_system
)
2156 && SCHARS (SYMBOL_NAME (Vinitial_window_system
)) == 1
2157 && SREF (SYMBOL_NAME (Vinitial_window_system
), 0) == 'x'
2159 Fx_close_current_connection ();
2160 #endif /* HAVE_X_WINDOWS */
2164 /* There is a tendency for a SIGIO signal to arrive within exit,
2165 and cause a SIGHUP because the input descriptor is already closed. */
2167 signal (SIGIO
, SIG_IGN
);
2174 /* Do this only if terminating normally, we want glyph matrices
2175 etc. in a core dump. */
2176 if (sig
== 0 || sig
== SIGTERM
)
2178 check_glyph_memory ();
2179 check_message_stack ();
2187 ns_term_shutdown (sig
);
2195 DEFUN ("dump-emacs", Fdump_emacs
, Sdump_emacs
, 2, 2, 0,
2196 doc
: /* Dump current state of Emacs into executable file FILENAME.
2197 Take symbols from SYMFILE (presumably the file you executed to run Emacs).
2198 This is used in the file `loadup.el' when building Emacs.
2200 You must run Emacs in batch mode in order to dump it. */)
2202 Lisp_Object filename
, symfile
;
2204 extern char my_edata
[];
2207 int count
= SPECPDL_INDEX ();
2211 if (! noninteractive
)
2212 error ("Dumping Emacs works only in batch mode");
2215 if (heap_bss_diff
> MAX_HEAP_BSS_DIFF
)
2217 fprintf (stderr
, "**************************************************\n");
2218 fprintf (stderr
, "Warning: Your system has a gap between BSS and the\n");
2219 fprintf (stderr
, "heap (%lu bytes). This usually means that exec-shield\n",
2221 fprintf (stderr
, "or something similar is in effect. The dump may\n");
2222 fprintf (stderr
, "fail because of this. See the section about\n");
2223 fprintf (stderr
, "exec-shield in etc/PROBLEMS for more information.\n");
2224 fprintf (stderr
, "**************************************************\n");
2226 #endif /* GNU_LINUX */
2228 /* Bind `command-line-processed' to nil before dumping,
2229 so that the dumped Emacs will process its command line
2230 and set up to work with X windows if appropriate. */
2231 symbol
= intern ("command-line-processed");
2232 specbind (symbol
, Qnil
);
2234 CHECK_STRING (filename
);
2235 filename
= Fexpand_file_name (filename
, Qnil
);
2236 if (!NILP (symfile
))
2238 CHECK_STRING (symfile
);
2239 if (SCHARS (symfile
))
2240 symfile
= Fexpand_file_name (symfile
, Qnil
);
2244 Vpurify_flag
= Qnil
;
2247 set_time_zone_rule (dump_tz
);
2248 #ifndef LOCALTIME_CACHE
2249 /* Force a tz reload, since set_time_zone_rule doesn't. */
2255 /* Tell malloc where start of impure now is. */
2256 /* Also arrange for warnings when nearly out of space. */
2257 #ifndef SYSTEM_MALLOC
2259 /* On Windows, this was done before dumping, and that once suffices.
2260 Meanwhile, my_edata is not valid on Windows. */
2261 memory_warnings (my_edata
, malloc_warning
);
2262 #endif /* not WINDOWSNT */
2264 #if !defined (SYSTEM_MALLOC) && defined (HAVE_GTK_AND_PTHREAD) && !defined SYNC_INPUT
2265 /* Pthread may call malloc before main, and then we will get an endless
2266 loop, because pthread_self (see alloc.c) calls malloc the first time
2267 it is called on some systems. */
2268 reset_malloc_hooks ();
2270 #ifdef DOUG_LEA_MALLOC
2271 malloc_state_ptr
= malloc_get_state ();
2274 #ifdef USE_MMAP_FOR_BUFFERS
2277 unexec (SDATA (filename
),
2278 !NILP (symfile
) ? SDATA (symfile
) : 0, my_edata
, 0, 0);
2279 #ifdef USE_MMAP_FOR_BUFFERS
2282 #ifdef DOUG_LEA_MALLOC
2283 free (malloc_state_ptr
);
2288 return unbind_to (count
, Qnil
);
2291 #endif /* not CANNOT_DUMP */
2294 /* Recover from setlocale (LC_ALL, ""). */
2298 /* The Emacs Lisp reader needs LC_NUMERIC to be "C",
2299 so that numbers are read and printed properly for Emacs Lisp. */
2300 setlocale (LC_NUMERIC
, "C");
2303 /* Set system locale CATEGORY, with previous locale *PLOCALE, to
2306 synchronize_locale (category
, plocale
, desired_locale
)
2308 Lisp_Object
*plocale
;
2309 Lisp_Object desired_locale
;
2311 if (! EQ (*plocale
, desired_locale
))
2313 *plocale
= desired_locale
;
2314 setlocale (category
, (STRINGP (desired_locale
)
2315 ? (char *) SDATA (desired_locale
)
2320 /* Set system time locale to match Vsystem_time_locale, if possible. */
2322 synchronize_system_time_locale ()
2324 synchronize_locale (LC_TIME
, &Vprevious_system_time_locale
,
2325 Vsystem_time_locale
);
2328 /* Set system messages locale to match Vsystem_messages_locale, if
2331 synchronize_system_messages_locale ()
2334 synchronize_locale (LC_MESSAGES
, &Vprevious_system_messages_locale
,
2335 Vsystem_messages_locale
);
2338 #endif /* HAVE_SETLOCALE */
2345 decode_env_path (evarname
, defalt
)
2346 char *evarname
, *defalt
;
2348 register char *path
, *p
;
2349 Lisp_Object lpath
, element
, tem
;
2351 /* It's okay to use getenv here, because this function is only used
2352 to initialize variables when Emacs starts up, and isn't called
2355 path
= (char *) getenv (evarname
);
2361 /* Ensure values from the environment use the proper directory separator. */
2364 p
= alloca (strlen (path
) + 1);
2368 if ('/' == DIRECTORY_SEP
)
2369 dostounix_filename (path
);
2371 unixtodos_filename (path
);
2377 p
= index (path
, SEPCHAR
);
2378 if (!p
) p
= path
+ strlen (path
);
2379 element
= (p
- path
? make_string (path
, p
- path
)
2380 : build_string ("."));
2382 /* Add /: to the front of the name
2383 if it would otherwise be treated as magic. */
2384 tem
= Ffind_file_name_handler (element
, Qt
);
2386 /* However, if the handler says "I'm safe",
2387 don't bother adding /:. */
2391 prop
= Fget (tem
, intern ("safe-magic"));
2397 element
= concat2 (build_string ("/:"), element
);
2399 lpath
= Fcons (element
, lpath
);
2405 return Fnreverse (lpath
);
2408 DEFUN ("daemonp", Fdaemonp
, Sdaemonp
, 0, 0, 0,
2409 doc
: /* Return non-nil if the current emacs process is a daemon.
2410 If the daemon was given a name argument, return that name. */)
2415 return build_string (daemon_name
);
2422 DEFUN ("daemon-initialized", Fdaemon_initialized
, Sdaemon_initialized
, 0, 0, 0,
2423 doc
: /* Mark the Emacs daemon as being initialized.
2424 This finishes the daemonization process by doing the other half of detaching
2425 from the parent process and its tty file descriptors. */)
2431 error ("This function can only be called if emacs is run as a daemon");
2433 if (daemon_pipe
[1] < 0)
2434 error ("The daemon has already been initialized");
2436 if (NILP (Vafter_init_time
))
2437 error ("This function can only be called after loading the init files");
2439 /* Get rid of stdin, stdout and stderr. */
2440 nfd
= open ("/dev/null", O_RDWR
);
2446 /* Closing the pipe will notify the parent that it can exit.
2447 FIXME: In case some other process inherited the pipe, closing it here
2448 won't notify the parent because it's still open elsewhere, so we
2449 additionally send a byte, just to make sure the parent really exits.
2450 Instead, we should probably close the pipe in start-process and
2451 call-process to make sure the pipe is never inherited by
2453 write (daemon_pipe
[1], "\n", 1);
2454 close (daemon_pipe
[1]);
2455 /* Set it to an invalid value so we know we've already run this function. */
2456 daemon_pipe
[1] = -1;
2463 Qfile_name_handler_alist
= intern_c_string ("file-name-handler-alist");
2464 staticpro (&Qfile_name_handler_alist
);
2467 defsubr (&Sdump_emacs
);
2470 defsubr (&Skill_emacs
);
2472 defsubr (&Sinvocation_name
);
2473 defsubr (&Sinvocation_directory
);
2474 defsubr (&Sdaemonp
);
2475 defsubr (&Sdaemon_initialized
);
2477 DEFVAR_LISP ("command-line-args", &Vcommand_line_args
,
2478 doc
: /* Args passed by shell to Emacs, as a list of strings.
2479 Many arguments are deleted from the list as they are processed. */);
2481 DEFVAR_LISP ("system-type", &Vsystem_type
,
2482 doc
: /* The value is a symbol indicating the type of operating system you are using.
2484 `gnu' compiled for a GNU Hurd system.
2485 `gnu/linux' compiled for a GNU/Linux system.
2486 `gnu/kfreebsd' compiled for a GNU system with a FreeBSD kernel.
2487 `darwin' compiled for Darwin (GNU-Darwin, Mac OS X, ...).
2488 `ms-dos' compiled as an MS-DOS application.
2489 `windows-nt' compiled as a native W32 application.
2490 `cygwin' compiled using the Cygwin library.
2491 Anything else (in Emacs 23.1, the possibilities are: aix, berkeley-unix,
2492 hpux, irix, lynxos 3.0.1, usg-unix-v) indicates some sort of Unix system. */);
2493 Vsystem_type
= intern_c_string (SYSTEM_TYPE
);
2495 DEFVAR_LISP ("system-configuration", &Vsystem_configuration
,
2496 doc
: /* Value is string indicating configuration Emacs was built for.
2497 On MS-Windows, the value reflects the OS flavor and version on which
2498 Emacs is running. */);
2499 Vsystem_configuration
= build_string (EMACS_CONFIGURATION
);
2501 DEFVAR_LISP ("system-configuration-options", &Vsystem_configuration_options
,
2502 doc
: /* String containing the configuration options Emacs was built with. */);
2503 Vsystem_configuration_options
= build_string (EMACS_CONFIG_OPTIONS
);
2505 DEFVAR_BOOL ("noninteractive", &noninteractive1
,
2506 doc
: /* Non-nil means Emacs is running without interactive terminal. */);
2508 DEFVAR_LISP ("kill-emacs-hook", &Vkill_emacs_hook
,
2509 doc
: /* Hook to be run when `kill-emacs' is called.
2510 Since `kill-emacs' may be invoked when the terminal is disconnected (or
2511 in other similar situations), functions placed on this hook should not
2512 expect to be able to interact with the user. To ask for confirmation,
2513 see `kill-emacs-query-functions' instead.
2515 The hook is not run in batch mode, i.e., if `noninteractive' is non-nil. */);
2516 Vkill_emacs_hook
= Qnil
;
2518 DEFVAR_INT ("emacs-priority", &emacs_priority
,
2519 doc
: /* Priority for Emacs to run at.
2520 This value is effective only if set before Emacs is dumped,
2521 and only if the Emacs executable is installed with setuid to permit
2522 it to change priority. (Emacs sets its uid back to the real uid.)
2523 Currently, you need to define SET_EMACS_PRIORITY in `config.h'
2524 before you compile Emacs, to enable the code for this feature. */);
2527 DEFVAR_LISP ("path-separator", &Vpath_separator
,
2528 doc
: /* String containing the character that separates directories in
2529 search paths, such as PATH and other similar environment variables. */);
2532 Vpath_separator
= make_string (&c
, 1);
2535 DEFVAR_LISP ("invocation-name", &Vinvocation_name
,
2536 doc
: /* The program name that was used to run Emacs.
2537 Any directory names are omitted. */);
2539 DEFVAR_LISP ("invocation-directory", &Vinvocation_directory
,
2540 doc
: /* The directory in which the Emacs executable was found, to run it.
2541 The value is nil if that directory's name is not known. */);
2543 DEFVAR_LISP ("installation-directory", &Vinstallation_directory
,
2544 doc
: /* A directory within which to look for the `lib-src' and `etc' directories.
2545 This is non-nil when we can't find those directories in their standard
2546 installed locations, but we can find them near where the Emacs executable
2548 Vinstallation_directory
= Qnil
;
2550 DEFVAR_LISP ("system-messages-locale", &Vsystem_messages_locale
,
2551 doc
: /* System locale for messages. */);
2552 Vsystem_messages_locale
= Qnil
;
2554 DEFVAR_LISP ("previous-system-messages-locale",
2555 &Vprevious_system_messages_locale
,
2556 doc
: /* Most recently used system locale for messages. */);
2557 Vprevious_system_messages_locale
= Qnil
;
2559 DEFVAR_LISP ("system-time-locale", &Vsystem_time_locale
,
2560 doc
: /* System locale for time. */);
2561 Vsystem_time_locale
= Qnil
;
2563 DEFVAR_LISP ("previous-system-time-locale", &Vprevious_system_time_locale
,
2564 doc
: /* Most recently used system locale for time. */);
2565 Vprevious_system_time_locale
= Qnil
;
2567 DEFVAR_LISP ("before-init-time", &Vbefore_init_time
,
2568 doc
: /* Value of `current-time' before Emacs begins initialization. */);
2569 Vbefore_init_time
= Qnil
;
2571 DEFVAR_LISP ("after-init-time", &Vafter_init_time
,
2572 doc
: /* Value of `current-time' after loading the init files.
2573 This is nil during initialization. */);
2574 Vafter_init_time
= Qnil
;
2576 DEFVAR_BOOL ("inhibit-x-resources", &inhibit_x_resources
,
2577 doc
: /* If non-nil, X resources, Windows Registry settings, and NS defaults are not used. */);
2578 inhibit_x_resources
= 0;
2580 /* Make sure IS_DAEMON starts up as false. */
2584 /* arch-tag: 7bfd356a-c720-4612-8ab6-aa4222931c2e
2585 (do not change this comment) */