1 /* Fully extensible Emacs, running on Unix, intended for GNU.
3 Copyright (C) 1985-1987, 1993-1995, 1997-1999, 2001-2014
4 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/>. */
21 #define INLINE EXTERN_INLINE
27 #include <sys/types.h>
32 #include <close-stream.h>
39 #include <sys/socket.h>
45 #if defined WINDOWSNT || defined HAVE_NTGUI
46 #include "w32select.h"
48 #include "w32common.h"
55 #ifdef HAVE_WINDOW_SYSTEM
57 #endif /* HAVE_WINDOW_SYSTEM */
59 #ifdef NS_IMPL_GNUSTEP
60 /* At least under Debian, GSConfig is in a subdirectory. --Stef */
61 #include <GNUstepBase/GSConfig.h>
65 #include "intervals.h"
66 #include "character.h"
72 #include "blockinput.h"
73 #include "syssignal.h"
76 #include "termhooks.h"
81 #include "composite.h"
82 #include "dispextern.h"
84 #include "sysselect.h"
91 #if (defined PROFILING \
92 && (defined __FreeBSD__ || defined GNU_LINUX || defined __MINGW32__))
93 # include <sys/gmon.h>
94 extern void moncontrol (int mode
);
101 #ifdef HAVE_SETRLIMIT
102 #include <sys/time.h>
103 #include <sys/resource.h>
106 #ifdef HAVE_PERSONALITY_LINUX32
107 #include <sys/personality.h>
110 Lisp_Object symbol_module
;
111 Lisp_Object function_module
;
112 Lisp_Object plist_module
;
114 static const char emacs_version
[] = PACKAGE_VERSION
;
115 static const char emacs_copyright
[] = COPYRIGHT
;
116 static const char emacs_bugreport
[] = PACKAGE_BUGREPORT
;
118 /* Empty lisp strings. To avoid having to build any others. */
119 Lisp_Object empty_unibyte_string
, empty_multibyte_string
;
122 /* Cache for externally loaded libraries. */
123 Lisp_Object Vlibrary_cache
;
126 /* Set after Emacs has started up the first time.
127 Prevents reinitialization of the Lisp world and keymaps
128 on subsequent starts. */
131 /* Set to true if this instance of Emacs might dump. */
135 extern void unexec_init_emacs_zone (void);
138 #ifdef DOUG_LEA_MALLOC
139 /* Preserves a pointer to the memory allocated that copies that
140 static data inside glibc's malloc. */
141 static void *malloc_state_ptr
;
142 /* From glibc, a routine that returns a copy of the malloc internal state. */
143 extern void *malloc_get_state (void);
144 /* From glibc, a routine that overwrites the malloc internal state. */
145 extern int malloc_set_state (void *);
146 /* True if the MALLOC_CHECK_ environment variable was set while
147 dumping. Used to work around a bug in glibc's malloc. */
148 static bool malloc_using_checking
;
149 #elif defined HAVE_PTHREAD && !defined SYSTEM_MALLOC
150 extern void malloc_enable_thread (void);
153 Lisp_Object Qfile_name_handler_alist
;
155 Lisp_Object Qrisky_local_variable
;
157 Lisp_Object Qkill_emacs
;
158 static Lisp_Object Qkill_emacs_hook
;
160 /* If true, Emacs should not attempt to use a window-specific code,
161 but instead should use the virtual terminal under which it was started. */
162 bool inhibit_window_system
;
164 /* If true, a filter or a sentinel is running. Tested to save the match
165 data on the first attempt to change it inside asynchronous code. */
166 bool running_asynch_code
;
168 #if defined (HAVE_X_WINDOWS) || defined (HAVE_NS)
169 /* If true, -d was specified, meaning we're using some window system. */
173 #if defined (DOUG_LEA_MALLOC) || defined (GNU_LINUX)
174 /* The address where the heap starts (from the first sbrk (0) call). */
175 static void *my_heap_start
;
179 /* The gap between BSS end and heap start as far as we can tell. */
180 static uprintmax_t heap_bss_diff
;
183 /* To run as a daemon under Cocoa or Windows, we must do a fork+exec,
186 On Cocoa, CoreFoundation lib fails in forked process:
187 http://developer.apple.com/ReleaseNotes/
188 CoreFoundation/CoreFoundation.html)
190 On Windows, a Cygwin fork child cannot access the USER subsystem.
192 We mark being in the exec'd process by a daemon name argument of
193 form "--daemon=\nFD0,FD1\nNAME" where FD are the pipe file descriptors,
194 NAME is the original daemon name, if any. */
195 #if defined NS_IMPL_COCOA || (defined HAVE_NTGUI && defined CYGWIN)
196 # define DAEMON_MUST_EXEC
199 /* True means running Emacs without interactive terminal. */
202 /* True means remove site-lisp directories from load-path. */
205 /* Name for the server started by the daemon.*/
206 static char *daemon_name
;
208 /* Pipe used to send exit notification to the daemon parent at
212 /* Save argv and argc. */
216 static void sort_args (int argc
, char **argv
);
217 static void syms_of_emacs (void);
219 /* C99 needs each string to be at most 4095 characters, and the usage
220 strings below are split to not overflow this limit. */
221 static char const *const usage_message
[] =
224 Run Emacs, the extensible, customizable, self-documenting real-time\n\
225 display editor. The recommended way to start Emacs for normal editing\n\
226 is with no options at all.\n\
228 Run M-x info RET m emacs RET m emacs invocation RET inside Emacs to\n\
229 read the main documentation for these command-line arguments.\n\
231 Initialization options:\n\
235 --batch do not do interactive display; implies -q\n\
236 --chdir DIR change to directory DIR\n\
237 --daemon start a server in the background\n\
238 --debug-init enable Emacs Lisp debugger for init file\n\
239 --display, -d DISPLAY use X server DISPLAY\n\
242 --no-desktop do not load a saved desktop\n\
243 --no-init-file, -q load neither ~/.emacs nor default.el\n\
244 --no-shared-memory, -nl do not use shared memory\n\
245 --no-site-file do not load site-start.el\n\
246 --no-site-lisp, -nsl do not add site-lisp directories to load-path\n\
247 --no-splash do not display a splash screen on startup\n\
248 --no-window-system, -nw do not communicate with X, ignoring $DISPLAY\n\
251 --quick, -Q equivalent to:\n\
252 -q --no-site-file --no-site-lisp --no-splash\n\
253 --script FILE run FILE as an Emacs Lisp script\n\
254 --terminal, -t DEVICE use DEVICE for terminal I/O\n\
255 --user, -u USER load ~USER/.emacs instead of your own\n\
261 FILE visit FILE using find-file\n\
262 +LINE go to line LINE in next FILE\n\
263 +LINE:COLUMN go to line LINE, column COLUMN, in next FILE\n\
264 --directory, -L DIR prepend DIR to load-path (with :DIR, append DIR)\n\
265 --eval EXPR evaluate Emacs Lisp expression EXPR\n\
266 --execute EXPR evaluate Emacs Lisp expression EXPR\n\
269 --file FILE visit FILE using find-file\n\
270 --find-file FILE visit FILE using find-file\n\
271 --funcall, -f FUNC call Emacs Lisp function FUNC with no arguments\n\
272 --insert FILE insert contents of FILE into current buffer\n\
273 --kill exit without asking for confirmation\n\
274 --load, -l FILE load Emacs Lisp FILE using the load function\n\
275 --visit FILE visit FILE using find-file\n\
281 --background-color, -bg COLOR window background color\n\
282 --basic-display, -D disable many display features;\n\
283 used for debugging Emacs\n\
284 --border-color, -bd COLOR main border color\n\
285 --border-width, -bw WIDTH width of main border\n\
288 --color, --color=MODE override color mode for character terminals;\n\
289 MODE defaults to `auto', and\n\
290 can also be `never', `always',\n\
291 or a mode name like `ansi8'\n\
292 --cursor-color, -cr COLOR color of the Emacs cursor indicating point\n\
293 --font, -fn FONT default font; must be fixed-width\n\
294 --foreground-color, -fg COLOR window foreground color\n\
297 --fullheight, -fh make the first frame high as the screen\n\
298 --fullscreen, -fs make the first frame fullscreen\n\
299 --fullwidth, -fw make the first frame wide as the screen\n\
300 --maximized, -mm make the first frame maximized\n\
301 --geometry, -g GEOMETRY window geometry\n\
304 --no-bitmap-icon, -nbi do not use picture of gnu for Emacs icon\n\
305 --iconic start Emacs in iconified state\n\
306 --internal-border, -ib WIDTH width between text and main border\n\
307 --line-spacing, -lsp PIXELS additional space to put between lines\n\
308 --mouse-color, -ms COLOR mouse cursor color in Emacs window\n\
309 --name NAME title for initial Emacs frame\n\
312 --no-blinking-cursor, -nbc disable blinking cursor\n\
313 --reverse-video, -r, -rv switch foreground and background\n\
314 --title, -T TITLE title for initial Emacs frame\n\
315 --vertical-scroll-bars, -vb enable vertical scroll bars\n\
316 --xrm XRESOURCES set additional X resources\n\
317 --parent-id XID set parent window\n\
318 --help display this help and exit\n\
319 --version output version information and exit\n\
323 You can generally also specify long option names with a single -; for\n\
324 example, -batch as well as --batch. You can use any unambiguous\n\
325 abbreviation for a --option.\n\
327 Various environment variables and window system resources also affect\n\
328 the operation of Emacs. See the main documentation.\n\
330 Report bugs to " PACKAGE_BUGREPORT
". First, please see the Bugs\n\
331 section of the Emacs manual or the file BUGS.\n"
335 /* True if handling a fatal error already. */
336 bool fatal_error_in_progress
;
339 /* NS autrelease pool, for memory management. */
340 static void *ns_pool
;
345 setlocale (int cat
, char const *locale
)
352 /* Report a fatal error due to signal SIG, output a backtrace of at
353 most BACKTRACE_LIMIT lines, and exit. */
355 terminate_due_to_signal (int sig
, int backtrace_limit
)
357 signal (sig
, SIG_DFL
);
358 totally_unblock_input ();
360 /* If fatal error occurs in code below, avoid infinite recursion. */
361 if (! fatal_error_in_progress
)
363 fatal_error_in_progress
= 1;
365 if (sig
== SIGTERM
|| sig
== SIGHUP
|| sig
== SIGINT
)
366 Fkill_emacs (make_number (sig
));
368 shut_down_emacs (sig
, Qnil
);
369 emacs_backtrace (backtrace_limit
);
372 /* Signal the same code; this time it will really be fatal.
373 Since we're in a signal handler, the signal is blocked, so we
374 have to unblock it if we want to really receive it. */
378 sigemptyset (&unblocked
);
379 sigaddset (&unblocked
, sig
);
380 pthread_sigmask (SIG_UNBLOCK
, &unblocked
, 0);
386 /* This shouldn't be executed, but it prevents a warning. */
390 /* Code for dealing with Lisp access to the Unix command line. */
393 init_cmdargs (int argc
, char **argv
, int skip_args
, char *original_pwd
)
396 Lisp_Object name
, dir
, handler
;
398 Lisp_Object raw_name
;
404 /* Must use argv[0] converted to UTF-8, as it begets many standard
405 file and directory names. */
407 char argv0
[MAX_UTF8_PATH
];
409 if (filename_from_ansi (argv
[0], argv0
) == 0)
410 raw_name
= build_unibyte_string (argv0
);
412 raw_name
= build_unibyte_string (argv
[0]);
415 raw_name
= build_unibyte_string (argv
[0]);
418 /* Add /: to the front of the name
419 if it would otherwise be treated as magic. */
420 handler
= Ffind_file_name_handler (raw_name
, Qt
);
421 if (! NILP (handler
))
422 raw_name
= concat2 (build_string ("/:"), raw_name
);
424 Vinvocation_name
= Ffile_name_nondirectory (raw_name
);
425 Vinvocation_directory
= Ffile_name_directory (raw_name
);
427 /* If we got no directory in argv[0], search PATH to find where
428 Emacs actually came from. */
429 if (NILP (Vinvocation_directory
))
432 int yes
= openp (Vexec_path
, Vinvocation_name
,
433 Vexec_suffixes
, &found
, make_number (X_OK
), false);
436 /* Add /: to the front of the name
437 if it would otherwise be treated as magic. */
438 handler
= Ffind_file_name_handler (found
, Qt
);
439 if (! NILP (handler
))
440 found
= concat2 (build_string ("/:"), found
);
441 Vinvocation_directory
= Ffile_name_directory (found
);
445 if (!NILP (Vinvocation_directory
)
446 && NILP (Ffile_name_absolute_p (Vinvocation_directory
)))
447 /* Emacs was started with relative path, like ./emacs.
451 original_pwd
? build_unibyte_string (original_pwd
) : Qnil
;
453 Vinvocation_directory
= Fexpand_file_name (Vinvocation_directory
, odir
);
456 Vinstallation_directory
= Qnil
;
458 if (!NILP (Vinvocation_directory
))
460 dir
= Vinvocation_directory
;
462 /* If we are running from the build directory, set DIR to the
463 src subdirectory of the Emacs tree, like on Posix
465 if (SBYTES (dir
) > sizeof ("/i386/") - 1
466 && 0 == strcmp (SSDATA (dir
) + SBYTES (dir
) - sizeof ("/i386/") + 1,
468 dir
= Fexpand_file_name (build_string ("../.."), dir
);
469 #else /* !WINDOWSNT */
471 name
= Fexpand_file_name (Vinvocation_name
, dir
);
474 Lisp_Object tem
, lib_src_exists
;
475 Lisp_Object etc_exists
, info_exists
;
477 /* See if dir contains subdirs for use by Emacs.
478 Check for the ones that would exist in a build directory,
479 not including lisp and info. */
480 tem
= Fexpand_file_name (build_string ("lib-src"), dir
);
481 lib_src_exists
= Ffile_exists_p (tem
);
484 /* MSDOS installations frequently remove lib-src, but we still
485 must set installation-directory, or else info won't find
486 its files (it uses the value of installation-directory). */
487 tem
= Fexpand_file_name (build_string ("info"), dir
);
488 info_exists
= Ffile_exists_p (tem
);
493 if (!NILP (lib_src_exists
) || !NILP (info_exists
))
495 tem
= Fexpand_file_name (build_string ("etc"), dir
);
496 etc_exists
= Ffile_exists_p (tem
);
497 if (!NILP (etc_exists
))
499 Vinstallation_directory
500 = Ffile_name_as_directory (dir
);
505 /* See if dir's parent contains those subdirs. */
506 tem
= Fexpand_file_name (build_string ("../lib-src"), dir
);
507 lib_src_exists
= Ffile_exists_p (tem
);
511 /* See the MSDOS commentary above. */
512 tem
= Fexpand_file_name (build_string ("../info"), dir
);
513 info_exists
= Ffile_exists_p (tem
);
518 if (!NILP (lib_src_exists
) || !NILP (info_exists
))
520 tem
= Fexpand_file_name (build_string ("../etc"), dir
);
521 etc_exists
= Ffile_exists_p (tem
);
522 if (!NILP (etc_exists
))
524 tem
= Fexpand_file_name (build_string (".."), dir
);
525 Vinstallation_directory
526 = Ffile_name_as_directory (tem
);
531 /* If the Emacs executable is actually a link,
532 next try the dir that the link points into. */
533 tem
= Ffile_symlink_p (name
);
536 name
= Fexpand_file_name (tem
, dir
);
537 dir
= Ffile_name_directory (name
);
544 Vcommand_line_args
= Qnil
;
546 for (i
= argc
- 1; i
>= 0; i
--)
548 if (i
== 0 || i
> skip_args
)
549 /* For the moment, we keep arguments as is in unibyte strings.
550 They are decoded in the function command-line after we know
551 locale-coding-system. */
553 = Fcons (build_unibyte_string (argv
[i
]), Vcommand_line_args
);
559 DEFUN ("invocation-name", Finvocation_name
, Sinvocation_name
, 0, 0, 0,
560 doc
: /* Return the program name that was used to run Emacs.
561 Any directory names are omitted. */)
564 return Fcopy_sequence (Vinvocation_name
);
567 DEFUN ("invocation-directory", Finvocation_directory
, Sinvocation_directory
,
569 doc
: /* Return the directory name in which the Emacs executable was located. */)
572 return Fcopy_sequence (Vinvocation_directory
);
577 /* A valid but unlikely value for the TZ environment value.
578 It is OK (though a bit slower) if the user actually chooses this value. */
579 static char const dump_tz
[] = "UtC0";
582 /* Test whether the next argument in ARGV matches SSTR or a prefix of
583 LSTR (at least MINLEN characters). If so, then if VALPTR is non-null
584 (the argument is supposed to have a value) store in *VALPTR either
585 the next argument or the portion of this one after the equal sign.
586 ARGV is read starting at position *SKIPPTR; this index is advanced
587 by the number of arguments used.
589 Too bad we can't just use getopt for all of this, but we don't have
590 enough information to do it right. */
593 argmatch (char **argv
, int argc
, const char *sstr
, const char *lstr
,
594 int minlen
, char **valptr
, int *skipptr
)
600 /* Don't access argv[argc]; give up in advance. */
601 if (argc
<= *skipptr
+ 1)
604 arg
= argv
[*skipptr
+1];
607 if (strcmp (arg
, sstr
) == 0)
611 *valptr
= argv
[*skipptr
+2];
618 arglen
= (valptr
!= NULL
&& (p
= strchr (arg
, '=')) != NULL
619 ? p
- arg
: strlen (arg
));
620 if (lstr
== 0 || arglen
< minlen
|| strncmp (arg
, lstr
, arglen
) != 0)
622 else if (valptr
== NULL
)
633 else if (argv
[*skipptr
+2] != NULL
)
635 *valptr
= argv
[*skipptr
+2];
645 #ifdef DOUG_LEA_MALLOC
647 /* malloc can be invoked even before main (e.g. by the dynamic
648 linker), so the dumped malloc state must be restored as early as
649 possible using this special hook. */
652 malloc_initialize_hook (void)
656 if (!malloc_using_checking
)
657 /* Work around a bug in glibc's malloc. MALLOC_CHECK_ must be
658 ignored if the heap to be restored was constructed without
659 malloc checking. Can't use unsetenv, since that calls malloc. */
663 for (p
= environ
; p
&& *p
; p
++)
664 if (strncmp (*p
, "MALLOC_CHECK_=", 14) == 0)
673 malloc_set_state (malloc_state_ptr
);
674 free (malloc_state_ptr
);
678 if (my_heap_start
== 0)
679 my_heap_start
= sbrk (0);
680 malloc_using_checking
= getenv ("MALLOC_CHECK_") != NULL
;
684 void (*__malloc_initialize_hook
) (void) EXTERNALLY_VISIBLE
= malloc_initialize_hook
;
686 #endif /* DOUG_LEA_MALLOC */
688 /* Close standard output and standard error, reporting any write
689 errors as best we can. This is intended for use with atexit. */
691 close_output_streams (void)
693 if (close_stream (stdout
) != 0)
695 emacs_perror ("Write error to standard output");
696 _exit (EXIT_FAILURE
);
699 if (close_stream (stderr
) != 0)
700 _exit (EXIT_FAILURE
);
704 string_from_scheme (Lisp_Object scheme_string
)
707 char *c_string
= scm_to_utf8_stringn (scheme_string
, &nbytes
);
708 return make_string_from_bytes (c_string
,
709 scm_c_string_length (scheme_string
),
713 Lisp_Object xsymbol_fn
;
714 Lisp_Object symbol_function_fn
;
716 static int main2 (void *, int, char **);
719 main (int argc
, char **argv
)
721 scm_boot_guile (argc
, argv
, main2
, NULL
);
726 main2 (void *ignore
, int argc
, char **argv
)
728 bool do_initial_setlocale
;
731 #ifdef HAVE_SETRLIMIT
737 #ifdef DAEMON_MUST_EXEC
742 /* If we use --chdir, this records the original directory. */
743 char *original_pwd
= 0;
745 #ifdef G_SLICE_ALWAYS_MALLOC
746 /* This is used by the Cygwin build. It's not needed starting with
747 cygwin-1.7.24, but it doesn't do any harm. */
748 xputenv ("G_SLICE=always-malloc");
752 might_dump
= !initialized
;
758 extern char my_endbss
[];
759 extern char *my_endbss_static
;
761 if (my_heap_start
== 0)
762 my_heap_start
= sbrk (0);
764 heap_bss_diff
= (char *)my_heap_start
- max (my_endbss
, my_endbss_static
);
768 #if defined WINDOWSNT || defined HAVE_NTGUI
769 /* Set global variables used to detect Windows version. Do this as
770 early as possible. (unexw32.c calls this function as well, but
771 the additional call here is harmless.) */
772 cache_system_info ();
774 /* On Windows 9X, we have to load UNICOWS.DLL as early as possible,
775 to have non-stub implementations of APIs we need to convert file
776 names between UTF-8 and the system's ANSI codepage. */
777 maybe_load_unicows_dll ();
781 #ifdef RUN_TIME_REMAP
783 run_time_remap (argv
[0]);
786 /* If using unexmacosx.c (set by s/darwin.h), we must do this. */
789 unexec_init_emacs_zone ();
792 atexit (close_output_streams
);
794 sort_args (argc
, argv
);
796 while (argv
[argc
]) argc
++;
798 if (argmatch (argv
, argc
, "-version", "--version", 3, NULL
, &skip_args
))
800 const char *version
, *copyright
;
803 Lisp_Object tem
, tem2
;
804 tem
= Fsymbol_value (intern_c_string ("emacs-version"));
805 tem2
= Fsymbol_value (intern_c_string ("emacs-copyright"));
808 fprintf (stderr
, "Invalid value of `emacs-version'\n");
813 fprintf (stderr
, "Invalid value of `emacs-copyright'\n");
818 version
= SSDATA (tem
);
819 copyright
= SSDATA (tem2
);
824 version
= emacs_version
;
825 copyright
= emacs_copyright
;
827 printf ("GNU Emacs %s\n", version
);
828 printf ("%s\n", copyright
);
829 printf ("GNU Emacs comes with ABSOLUTELY NO WARRANTY.\n");
830 printf ("You may redistribute copies of Emacs\n");
831 printf ("under the terms of the GNU General Public License.\n");
832 printf ("For more information about these matters, ");
833 printf ("see the file named COPYING.\n");
837 if (argmatch (argv
, argc
, "-chdir", "--chdir", 4, &ch_to_dir
, &skip_args
))
840 /* argv[] array is kept in its original ANSI codepage encoding,
841 we need to convert to UTF-8, for chdir to work. */
842 char newdir
[MAX_UTF8_PATH
];
844 filename_from_ansi (ch_to_dir
, newdir
);
847 original_pwd
= get_current_dir_name ();
848 if (chdir (ch_to_dir
) != 0)
850 fprintf (stderr
, "%s: Can't chdir to %s: %s\n",
851 argv
[0], ch_to_dir
, strerror (errno
));
856 dumping
= !initialized
&& (strcmp (argv
[argc
- 1], "dump") == 0
857 || strcmp (argv
[argc
- 1], "bootstrap") == 0);
859 #ifdef HAVE_PERSONALITY_LINUX32
860 if (dumping
&& ! getenv ("EMACS_HEAP_EXEC"))
862 /* Set this so we only do this once. */
863 xputenv ("EMACS_HEAP_EXEC=true");
865 /* A flag to turn off address randomization which is introduced
866 in linux kernel shipped with fedora core 4 */
867 #define ADD_NO_RANDOMIZE 0x0040000
868 personality (PER_LINUX32
| ADD_NO_RANDOMIZE
);
869 #undef ADD_NO_RANDOMIZE
871 execvp (argv
[0], argv
);
873 /* If the exec fails, try to dump anyway. */
874 emacs_perror (argv
[0]);
876 #endif /* HAVE_PERSONALITY_LINUX32 */
878 #if defined (HAVE_SETRLIMIT) && defined (RLIMIT_STACK)
879 /* Extend the stack space available.
880 Don't do that if dumping, since some systems (e.g. DJGPP)
881 might define a smaller stack limit at that time. */
884 && (!noninteractive
|| initialized
)
886 && !getrlimit (RLIMIT_STACK
, &rlim
))
889 extern size_t re_max_failures
;
890 /* Approximate the amount regex.c needs per unit of re_max_failures. */
891 int ratio
= 20 * sizeof (char *);
892 /* Then add 33% to cover the size of the smaller stacks that regex.c
893 successively allocates and discards, on its way to the maximum. */
895 /* Add in some extra to cover
896 what we're likely to use for other reasons. */
897 newlim
= re_max_failures
* ratio
+ 200000;
899 /* NetBSD (at least NetBSD 1.2G and former) has a bug in its
900 stack allocation routine for new process that the allocation
901 fails if stack limit is not on page boundary. So, round up the
902 new limit to page boundary. */
903 newlim
= (newlim
+ getpagesize () - 1) / getpagesize () * getpagesize ();
905 if (newlim
> rlim
.rlim_max
)
907 newlim
= rlim
.rlim_max
;
908 /* Don't let regex.c overflow the stack we have. */
909 re_max_failures
= (newlim
- 200000) / ratio
;
911 if (rlim
.rlim_cur
< newlim
)
912 rlim
.rlim_cur
= newlim
;
914 setrlimit (RLIMIT_STACK
, &rlim
);
916 #endif /* HAVE_SETRLIMIT and RLIMIT_STACK */
920 #ifndef SYSTEM_MALLOC
921 /* Arrange to get warning messages as memory fills up. */
922 memory_warnings (0, malloc_warning
);
924 /* Call malloc at least once, to run malloc_initialize_hook.
925 Also call realloc and free for consistency. */
926 free (realloc (malloc (4), 4));
928 #endif /* not SYSTEM_MALLOC */
930 #if defined (MSDOS) || defined (WINDOWSNT)
931 /* We do all file input/output as binary files. When we need to translate
932 newlines, we do that manually. */
934 #endif /* MSDOS || WINDOWSNT */
937 if (!isatty (fileno (stdin
)))
938 setmode (fileno (stdin
), O_BINARY
);
939 if (!isatty (fileno (stdout
)))
942 setmode (fileno (stdout
), O_BINARY
);
946 /* Skip initial setlocale if LC_ALL is "C", as it's not needed in that case.
947 The build procedure uses this while dumping, to ensure that the
948 dumped Emacs does not have its system locale tables initialized,
949 as that might cause screwups when the dumped Emacs starts up. */
951 char *lc_all
= getenv ("LC_ALL");
952 do_initial_setlocale
= ! lc_all
|| strcmp (lc_all
, "C");
955 /* Set locale now, so that initial error messages are localized properly.
956 fixup_locale must wait until later, since it builds strings. */
957 if (do_initial_setlocale
)
958 setlocale (LC_ALL
, "");
960 inhibit_window_system
= 0;
962 /* Handle the -t switch, which specifies filename to use as terminal. */
966 if (argmatch (argv
, argc
, "-t", "--terminal", 4, &term
, &skip_args
))
971 result
= emacs_open (term
, O_RDWR
, 0);
972 if (result
< 0 || fcntl (0, F_DUPFD_CLOEXEC
, 1) < 0)
974 char *errstring
= strerror (errno
);
975 fprintf (stderr
, "%s: %s: %s\n", argv
[0], term
, errstring
);
980 fprintf (stderr
, "%s: %s: not a tty\n", argv
[0], term
);
983 fprintf (stderr
, "Using %s\n", term
);
984 #ifdef HAVE_WINDOW_SYSTEM
985 inhibit_window_system
= 1; /* -t => -nw */
992 /* Command line option --no-windows is deprecated and thus not mentioned
993 in the manual and usage information. */
994 if (argmatch (argv
, argc
, "-nw", "--no-window-system", 6, NULL
, &skip_args
)
995 || argmatch (argv
, argc
, "-nw", "--no-windows", 6, NULL
, &skip_args
))
996 inhibit_window_system
= 1;
998 /* Handle the -batch switch, which means don't do interactive display. */
1000 if (argmatch (argv
, argc
, "-batch", "--batch", 5, NULL
, &skip_args
))
1003 Vundo_outer_limit
= Qnil
;
1005 if (argmatch (argv
, argc
, "-script", "--script", 3, &junk
, &skip_args
))
1007 noninteractive
= 1; /* Set batch mode. */
1008 /* Convert --script to -scriptload, un-skip it, and sort again
1009 so that it will be handled in proper sequence. */
1010 /* FIXME broken for --script=FILE - is that supposed to work? */
1011 argv
[skip_args
- 1] = (char *) "-scriptload";
1013 sort_args (argc
, argv
);
1016 /* Handle the --help option, which gives a usage message. */
1017 if (argmatch (argv
, argc
, "-help", "--help", 3, NULL
, &skip_args
))
1020 printf ("Usage: %s [OPTION-OR-FILENAME]...\n", argv
[0]);
1021 for (i
= 0; i
< ARRAYELTS (usage_message
); i
++)
1022 fputs (usage_message
[i
], stdout
);
1026 /* Make sure IS_DAEMON starts up as false. */
1029 if (argmatch (argv
, argc
, "-daemon", "--daemon", 5, NULL
, &skip_args
)
1030 || argmatch (argv
, argc
, "-daemon", "--daemon", 5, &dname_arg
, &skip_args
))
1035 /* Start as a daemon: fork a new child process which will run the
1036 rest of the initialization code, then exit.
1038 Detaching a daemon requires the following steps:
1042 - close the tty file-descriptors
1044 We only want to do the last 2 steps once the daemon is ready to
1045 serve requests, i.e. after loading .emacs (initialization).
1046 OTOH initialization may start subprocesses (e.g. ispell) and these
1047 should be run from the proper process (the one that will end up
1048 running as daemon) and with the proper "session id" in order for
1049 them to keep working after detaching, so fork and setsid need to be
1050 performed before initialization.
1052 We want to avoid exiting before the server socket is ready, so
1053 use a pipe for synchronization. The parent waits for the child
1054 to close its end of the pipe (using `daemon-initialized')
1056 if (emacs_pipe (daemon_pipe
) != 0)
1058 fprintf (stderr
, "Cannot pipe!\n");
1062 #ifndef DAEMON_MUST_EXEC
1064 fprintf (stderr
, "\nWarning: due to a long standing Gtk+ bug\nhttp://bugzilla.gnome.org/show_bug.cgi?id=85715\n\
1065 Emacs might crash when run in daemon mode and the X11 connection is unexpectedly lost.\n\
1066 Using an Emacs configured with --with-x-toolkit=lucid does not have this problem.\n");
1067 #endif /* USE_GTK */
1069 #else /* DAEMON_MUST_EXEC */
1070 if (!dname_arg
|| !strchr (dname_arg
, '\n'))
1071 f
= fork (); /* in orig */
1073 f
= 0; /* in exec'd */
1074 #endif /* !DAEMON_MUST_EXEC */
1080 /* Close unused writing end of the pipe. */
1081 emacs_close (daemon_pipe
[1]);
1083 /* Just wait for the child to close its end of the pipe. */
1086 retval
= read (daemon_pipe
[0], &buf
, 1);
1088 while (retval
== -1 && errno
== EINTR
);
1092 fprintf (stderr
, "Error reading status from child\n");
1095 else if (retval
== 0)
1097 fprintf (stderr
, "Error: server did not start correctly\n");
1101 emacs_close (daemon_pipe
[0]);
1106 emacs_perror ("fork");
1107 exit (EXIT_CANCELED
);
1110 #ifdef DAEMON_MUST_EXEC
1112 /* In orig process, forked as child, OR in exec'd. */
1113 if (!dname_arg
|| !strchr (dname_arg
, '\n'))
1114 { /* In orig, child: now exec w/special daemon name. */
1117 snprintf (fdStr
, sizeof fdStr
,
1118 "--daemon=\n%d,%d\n%s", daemon_pipe
[0],
1119 daemon_pipe
[1], dname_arg
? dname_arg
: "");
1121 if (! (0 <= fdStrlen
&& fdStrlen
< sizeof fdStr
))
1123 fprintf (stderr
, "daemon: child name too long\n");
1124 exit (EXIT_CANNOT_INVOKE
);
1127 argv
[skip_args
] = fdStr
;
1129 fcntl (daemon_pipe
[0], F_SETFD
, 0);
1130 fcntl (daemon_pipe
[1], F_SETFD
, 0);
1131 execvp (argv
[0], argv
);
1132 emacs_perror (argv
[0]);
1133 exit (errno
== ENOENT
? EXIT_ENOENT
: EXIT_CANNOT_INVOKE
);
1136 /* In exec'd: parse special dname into pipe and name info. */
1137 if (!dname_arg
|| !strchr (dname_arg
, '\n')
1138 || strlen (dname_arg
) < 1 || strlen (dname_arg
) > 70)
1140 fprintf (stderr
, "emacs daemon: daemon name absent or too long\n");
1141 exit (EXIT_CANNOT_INVOKE
);
1143 dname_arg2
[0] = '\0';
1144 sscanf (dname_arg
, "\n%d,%d\n%s", &(daemon_pipe
[0]), &(daemon_pipe
[1]),
1146 dname_arg
= *dname_arg2
? dname_arg2
: NULL
;
1147 fcntl (daemon_pipe
[1], F_SETFD
, FD_CLOEXEC
);
1149 #endif /* DAEMON_MUST_EXEC */
1152 daemon_name
= xstrdup (dname_arg
);
1153 /* Close unused reading end of the pipe. */
1154 emacs_close (daemon_pipe
[0]);
1158 fprintf (stderr
, "This platform does not support the -daemon flag.\n");
1163 #if defined HAVE_PTHREAD && !defined SYSTEM_MALLOC && !defined DOUG_LEA_MALLOC
1164 # ifndef CANNOT_DUMP
1165 /* Do not make gmalloc thread-safe when creating bootstrap-emacs, as
1166 that causes an infinite recursive loop with FreeBSD. But do make
1167 it thread-safe when creating emacs, otherwise bootstrap-emacs
1168 fails on Cygwin. See Bug#14569. */
1169 if (!noninteractive
|| initialized
)
1171 malloc_enable_thread ();
1174 init_signals (dumping
);
1176 noninteractive1
= noninteractive
;
1178 /* Perform basic initializations (not merely interning symbols). */
1182 /* scm_c_module_define (scm_c_resolve_module ("language elisp lexer"), */
1183 /* "make-lisp-string", */
1184 /* scm_c_make_gsubr ("make-lisp-string", 1, 0, 0, */
1185 /* string_from_scheme)); */
1186 (void *) scm_c_resolve_module ("language elisp spec");
1187 symbol_module
= scm_c_resolve_module ("elisp-symbols");
1188 function_module
= scm_c_resolve_module ("elisp-functions");
1189 plist_module
= scm_c_resolve_module ("elisp-plists");
1190 scm_set_current_module (scm_c_resolve_module ("guile-user"));
1194 scm_c_module_define (scm_c_resolve_module ("language elisp runtime"),
1196 scm_c_make_gsubr ("make-lisp-string", 1, 0, 0,
1197 string_from_scheme
));
1198 scm_c_module_define (scm_c_resolve_module ("language elisp runtime"),
1200 scm_c_make_gsubr ("stringp", 1, 0, 0, Fstringp
));
1202 xsymbol_fn
= scm_c_public_ref ("language elisp runtime", "symbol-desc");
1203 symbol_function_fn
= scm_c_public_ref ("language elisp runtime", "symbol-function");
1209 init_charset_once ();
1210 init_coding_once ();
1211 init_syntax_once (); /* Create standard syntax table. */
1212 init_category_once (); /* Create standard category table. */
1213 init_casetab_once (); /* Must be done before init_buffer_once. */
1214 init_buffer_once (); /* Create buffer table and some buffers. */
1215 init_minibuf_once (); /* Create list of minibuffers. */
1216 /* Must precede init_window_once. */
1218 /* Called before syms_of_fileio, because it sets up
1219 Qerror_condition. Called before other symbol-initialization
1220 functions because it sets up symbols used by defsubr. */
1223 scm_call_7 (scm_c_public_ref ("language elisp runtime", "emacs!"),
1224 SYMBOL_FUNCTION (intern ("symbol-value")),
1225 SYMBOL_FUNCTION (intern ("set")),
1226 SYMBOL_FUNCTION (intern ("boundp")),
1227 SYMBOL_FUNCTION (intern ("default-value")),
1228 SYMBOL_FUNCTION (intern ("set-default")),
1229 SYMBOL_FUNCTION (intern ("default-boundp")),
1230 SYMBOL_FUNCTION (intern ("bind-symbol")));
1232 /* Call syms_of_xfaces before init_window_once because that
1233 function creates Vterminal_frame. Termcap frames now use
1234 faces, and the face implementation uses some symbols as
1237 /* XXX syms_of_keyboard uses some symbols in keymap.c. It would
1238 be better to arrange things not to have this dependency. */
1240 /* Call syms_of_keyboard before init_window_once because
1241 keyboard sets up symbols that include some face names that
1242 the X support will want to use. This can happen when
1243 CANNOT_DUMP is defined. */
1244 syms_of_keyboard ();
1246 syms_of_fns (); /* Before syms_of_charset which uses hashtables. */
1248 /* Before syms_of_coding to initialize Vgc_cons_threshold. */
1250 /* May call Ffuncall and so GC, thus the latter should be initialized. */
1252 /* Before syms_of_coding because it initializes Qcharsetp. */
1254 /* Before init_window_once, because it sets up the
1255 Vcoding_system_hash_table. */
1256 syms_of_coding (); /* This should be after syms_of_fileio. */
1258 init_window_once (); /* Init the window system. */
1259 #ifdef HAVE_WINDOW_SYSTEM
1260 init_fringe_once (); /* Swap bitmaps if necessary. */
1261 #endif /* HAVE_WINDOW_SYSTEM */
1266 if (do_initial_setlocale
)
1269 Vsystem_messages_locale
= Vprevious_system_messages_locale
;
1270 Vsystem_time_locale
= Vprevious_system_time_locale
;
1275 running_asynch_code
= 0;
1279 = argmatch (argv
, argc
, "-nl", "--no-loadup", 6, NULL
, &skip_args
);
1282 = argmatch (argv
, argc
, "-nsl", "--no-site-lisp", 11, NULL
, &skip_args
);
1285 ns_pool
= ns_alloc_autorelease_pool ();
1286 #ifdef NS_IMPL_GNUSTEP
1287 /* GNUstep stupidly resets our locale settings after we made them. */
1291 if (!noninteractive
)
1293 #ifdef NS_IMPL_COCOA
1294 /* Started from GUI? */
1295 /* FIXME: Do the right thing if getenv returns NULL, or if
1297 if (! inhibit_window_system
&& ! isatty (0))
1298 chdir (getenv ("HOME"));
1299 if (skip_args
< argc
)
1301 if (!strncmp (argv
[skip_args
], "-psn", 4))
1304 chdir (getenv ("HOME"));
1306 else if (skip_args
+1 < argc
&& !strncmp (argv
[skip_args
+1], "-psn", 4))
1309 chdir (getenv ("HOME"));
1314 #endif /* HAVE_NS */
1316 #ifdef HAVE_X_WINDOWS
1317 /* Stupid kludge to catch command-line display spec. We can't
1318 handle this argument entirely in window system dependent code
1319 because we don't even know which window system dependent code
1320 to run until we've recognized this argument. */
1322 char *displayname
= 0;
1323 int count_before
= skip_args
;
1325 /* Skip any number of -d options, but only use the last one. */
1328 int count_before_this
= skip_args
;
1330 if (argmatch (argv
, argc
, "-d", "--display", 3, &displayname
, &skip_args
))
1332 else if (argmatch (argv
, argc
, "-display", 0, 3, &displayname
, &skip_args
))
1337 count_before
= count_before_this
;
1340 /* If we have the form --display=NAME,
1341 convert it into -d name.
1342 This requires inserting a new element into argv. */
1343 if (displayname
&& count_before
< skip_args
)
1345 if (skip_args
== count_before
+ 1)
1347 memmove (argv
+ count_before
+ 3, argv
+ count_before
+ 2,
1348 (argc
- (count_before
+ 2)) * sizeof *argv
);
1349 argv
[count_before
+ 2] = displayname
;
1352 argv
[count_before
+ 1] = (char *) "-d";
1357 if (argmatch (argv
, argc
, "-Q", "--quick", 3, NULL
, &skip_args
)
1358 || argmatch (argv
, argc
, "-quick", 0, 2, NULL
, &skip_args
))
1362 /* Don't actually discard this arg. */
1363 skip_args
= count_before
;
1365 #else /* !HAVE_X_WINDOWS */
1368 int count_before
= skip_args
;
1370 if (argmatch (argv
, argc
, "-Q", "--quick", 3, NULL
, &skip_args
)
1371 || argmatch (argv
, argc
, "-quick", 0, 2, NULL
, &skip_args
))
1374 skip_args
= count_before
;
1378 /* argmatch must not be used after here,
1379 except when building temacs
1380 because the -d argument has not been skipped in skip_args. */
1383 /* Call early 'cause init_environment needs it. */
1385 /* Set defaults for several environment variables. */
1387 init_environment (argc
, argv
, skip_args
);
1392 #ifdef HAVE_GFILENOTIFY
1393 globals_of_gfilenotify ();
1398 #ifdef HAVE_W32NOTIFY
1399 globals_of_w32notify ();
1401 /* Initialize environment from registry settings. */
1402 init_environment (argv
);
1403 init_ntproc (dumping
); /* must precede init_editfns. */
1406 /* Initialize and GC-protect Vinitial_environment and
1407 Vprocess_environment before set_initial_environment fills them
1410 syms_of_callproc ();
1411 /* egetenv is a pretty low-level facility, which may get called in
1412 many circumstances; it seems flimsy to put off initializing it
1413 until calling init_callproc. Do not do it when dumping. */
1415 set_initial_environment ();
1417 /* AIX crashes are reported in system versions 3.2.3 and 3.2.4
1418 if this is not done. Do it after set_global_environment so that we
1419 don't pollute Vglobal_environment. */
1420 /* Setting LANG here will defeat the startup locale processing... */
1425 /* Init buffer storage and default directory of main buffer. */
1426 init_buffer (initialized
);
1428 init_callproc_1 (); /* Must precede init_cmdargs and init_sys_modes. */
1430 /* Must precede init_lread. */
1431 init_cmdargs (argc
, argv
, skip_args
, original_pwd
);
1435 /* Erase any pre-dump messages in the message log, to avoid confusion. */
1436 Lisp_Object old_log_max
;
1437 old_log_max
= Vmessage_log_max
;
1438 XSETFASTINT (Vmessage_log_max
, 0);
1439 message_dolog ("", 0, 1, 0);
1440 Vmessage_log_max
= old_log_max
;
1443 init_callproc (); /* Must follow init_cmdargs but not init_sys_modes. */
1447 /* Check to see if Emacs has been installed correctly. */
1448 check_windows_init_file ();
1451 /* Intern the names of all standard functions and variables;
1452 define standard keys. */
1456 /* The basic levels of Lisp must come first. Note that
1457 syms_of_data and some others have already been called. */
1462 syms_of_floatfns ();
1466 syms_of_casefiddle ();
1468 syms_of_category ();
1470 syms_of_character ();
1477 syms_of_filelock ();
1480 /* syms_of_keymap (); */
1488 syms_of_terminal ();
1494 syms_of_textprop ();
1495 syms_of_composite ();
1498 #endif /* WINDOWSNT */
1505 #ifdef HAVE_WINDOW_SYSTEM
1508 #endif /* HAVE_WINDOW_SYSTEM */
1509 #ifdef HAVE_X_WINDOWS
1514 syms_of_xsettings ();
1521 #endif /* HAVE_X_WINDOWS */
1528 syms_of_decompress ();
1538 #endif /* HAVE_NTGUI */
1540 #if defined WINDOWSNT || defined HAVE_NTGUI
1541 syms_of_w32select ();
1548 syms_of_win16select ();
1555 syms_of_nsselect ();
1557 #endif /* HAVE_NS */
1563 #ifdef HAVE_GFILENOTIFY
1564 syms_of_gfilenotify ();
1565 #endif /* HAVE_GFILENOTIFY */
1569 #endif /* HAVE_INOTIFY */
1572 syms_of_dbusbind ();
1573 #endif /* HAVE_DBUS */
1577 #ifdef HAVE_W32NOTIFY
1578 syms_of_w32notify ();
1579 #endif /* HAVE_W32NOTIFY */
1580 #endif /* WINDOWSNT */
1582 keys_of_casefiddle ();
1585 keys_of_keyboard ();
1591 /* Initialization that must be done even if the global variable
1592 initialized is non zero. */
1594 globals_of_w32font ();
1595 globals_of_w32fns ();
1596 globals_of_w32menu ();
1597 #endif /* HAVE_NTGUI */
1599 #if defined WINDOWSNT || defined HAVE_NTGUI
1600 globals_of_w32select ();
1606 init_editfns (); /* init_process_emacs uses Voperating_system_release. */
1607 init_process_emacs (); /* init_display uses add_keyboard_wait_descriptor. */
1608 init_keyboard (); /* This too must precede init_sys_modes. */
1609 if (!noninteractive
)
1610 init_display (); /* Determine terminal type. Calls init_sys_modes. */
1613 init_crit (); /* w32notify.c needs this in batch mode. */
1614 #endif /* HAVE_W32NOTIFY */
1616 #ifdef HAVE_WINDOW_SYSTEM
1618 #endif /* HAVE_WINDOW_SYSTEM */
1626 /* Handle -l loadup, args passed by Makefile. */
1627 if (argmatch (argv
, argc
, "-l", "--load", 3, &file
, &skip_args
))
1630 char file_utf8
[MAX_UTF8_PATH
];
1632 if (filename_from_ansi (file
, file_utf8
) == 0)
1635 Vtop_level
= list2 (intern_c_string ("load"),
1636 build_unibyte_string (file
));
1638 /* Unless next switch is -nl, load "loadup.el" first thing. */
1640 Vtop_level
= list2 (intern_c_string ("load"),
1641 build_string ("loadup.el"));
1648 /* If the execution TZ happens to be the same as the dump TZ,
1649 change it to some other value and then change it back,
1650 to force the underlying implementation to reload the TZ info.
1651 This is needed on implementations that load TZ info from files,
1652 since the TZ file contents may differ between dump and execution. */
1653 char *tz
= getenv ("TZ");
1654 if (tz
&& !strcmp (tz
, dump_tz
))
1664 /* Set up for profiling. This is known to work on FreeBSD,
1665 GNU/Linux and MinGW. It might work on some other systems too.
1666 Give it a try and tell us if it works on your system. To compile
1667 for profiling, use the configure option --enable-profiling. */
1668 #if defined (__FreeBSD__) || defined (GNU_LINUX) || defined (__MINGW32__)
1673 extern unsigned char etext
asm ("etext");
1679 monstartup ((uintptr_t) __executable_start
, (uintptr_t) &etext
);
1688 #ifdef LOCALTIME_CACHE
1689 /* Some versions of localtime have a bug. They cache the value of the time
1690 zone rather than looking it up every time. Since localtime() is
1691 called to bolt the undumping time into the undumped emacs, this
1692 results in localtime ignoring the TZ environment variable.
1693 This flushes the new TZ value into localtime. */
1695 #endif /* defined (LOCALTIME_CACHE) */
1697 /* Enter editor command loop. This never returns. */
1703 /* Sort the args so we can find the most important ones
1704 at the beginning of argv. */
1706 /* First, here's a table of all the standard options. */
1708 struct standard_args
1711 const char *longname
;
1716 static const struct standard_args standard_args
[] =
1718 { "-version", "--version", 150, 0 },
1719 { "-chdir", "--chdir", 130, 1 },
1720 { "-t", "--terminal", 120, 1 },
1721 { "-nw", "--no-window-system", 110, 0 },
1722 { "-nw", "--no-windows", 110, 0 },
1723 { "-batch", "--batch", 100, 0 },
1724 { "-script", "--script", 100, 1 },
1725 { "-daemon", "--daemon", 99, 0 },
1726 { "-help", "--help", 90, 0 },
1727 { "-nl", "--no-loadup", 70, 0 },
1728 { "-nsl", "--no-site-lisp", 65, 0 },
1729 /* -d must come last before the options handled in startup.el. */
1730 { "-d", "--display", 60, 1 },
1731 { "-display", 0, 60, 1 },
1732 /* Now for the options handled in `command-line' (startup.el). */
1733 /* (Note that to imply -nsl, -Q is partially handled here.) */
1734 { "-Q", "--quick", 55, 0 },
1735 { "-quick", 0, 55, 0 },
1736 { "-q", "--no-init-file", 50, 0 },
1737 { "-no-init-file", 0, 50, 0 },
1738 { "-no-site-file", "--no-site-file", 40, 0 },
1739 { "-u", "--user", 30, 1 },
1740 { "-user", 0, 30, 1 },
1741 { "-debug-init", "--debug-init", 20, 0 },
1742 { "-iconic", "--iconic", 15, 0 },
1743 { "-D", "--basic-display", 12, 0},
1744 { "-basic-display", 0, 12, 0},
1745 { "-nbc", "--no-blinking-cursor", 12, 0 },
1746 /* Now for the options handled in `command-line-1' (startup.el). */
1747 { "-nbi", "--no-bitmap-icon", 10, 0 },
1748 { "-bg", "--background-color", 10, 1 },
1749 { "-background", 0, 10, 1 },
1750 { "-fg", "--foreground-color", 10, 1 },
1751 { "-foreground", 0, 10, 1 },
1752 { "-bd", "--border-color", 10, 1 },
1753 { "-bw", "--border-width", 10, 1 },
1754 { "-ib", "--internal-border", 10, 1 },
1755 { "-ms", "--mouse-color", 10, 1 },
1756 { "-cr", "--cursor-color", 10, 1 },
1757 { "-fn", "--font", 10, 1 },
1758 { "-font", 0, 10, 1 },
1759 { "-fs", "--fullscreen", 10, 0 },
1760 { "-fw", "--fullwidth", 10, 0 },
1761 { "-fh", "--fullheight", 10, 0 },
1762 { "-mm", "--maximized", 10, 0 },
1763 { "-g", "--geometry", 10, 1 },
1764 { "-geometry", 0, 10, 1 },
1765 { "-T", "--title", 10, 1 },
1766 { "-title", 0, 10, 1 },
1767 { "-name", "--name", 10, 1 },
1768 { "-xrm", "--xrm", 10, 1 },
1769 { "-parent-id", "--parent-id", 10, 1 },
1770 { "-r", "--reverse-video", 5, 0 },
1772 { "-reverse", 0, 5, 0 },
1773 { "-hb", "--horizontal-scroll-bars", 5, 0 },
1774 { "-vb", "--vertical-scroll-bars", 5, 0 },
1775 { "-color", "--color", 5, 0},
1776 { "-no-splash", "--no-splash", 3, 0 },
1777 { "-no-desktop", "--no-desktop", 3, 0 },
1779 { "-NSAutoLaunch", 0, 5, 1 },
1780 { "-NXAutoLaunch", 0, 5, 1 },
1781 { "-_NSMachLaunch", 0, 85, 1 },
1782 { "-MachLaunch", 0, 85, 1 },
1783 { "-macosx", 0, 85, 0 },
1784 { "-NSHost", 0, 85, 1 },
1786 /* These have the same priority as ordinary file name args,
1787 so they are not reordered with respect to those. */
1788 { "-L", "--directory", 0, 1 },
1789 { "-directory", 0, 0, 1 },
1790 { "-l", "--load", 0, 1 },
1791 { "-load", 0, 0, 1 },
1792 /* This has no longname, because using --scriptload confuses sort_args,
1793 because then the --script long option seems to match twice; ie
1794 you can't have a long option which is a prefix of another long
1795 option. In any case, this is entirely an internal option. */
1796 { "-scriptload", NULL
, 0, 1 },
1797 { "-f", "--funcall", 0, 1 },
1798 { "-funcall", 0, 0, 1 },
1799 { "-eval", "--eval", 0, 1 },
1800 { "-execute", "--execute", 0, 1 },
1801 { "-find-file", "--find-file", 0, 1 },
1802 { "-visit", "--visit", 0, 1 },
1803 { "-file", "--file", 0, 1 },
1804 { "-insert", "--insert", 0, 1 },
1806 { "-NXOpen", 0, 0, 1 },
1807 { "-NXOpenTemp", 0, 0, 1 },
1808 { "-NSOpen", 0, 0, 1 },
1809 { "-NSOpenTemp", 0, 0, 1 },
1810 { "-GSFilePath", 0, 0, 1 },
1812 /* This should be processed after ordinary file name args and the like. */
1813 { "-kill", "--kill", -10, 0 },
1816 /* Reorder the elements of ARGV (assumed to have ARGC elements)
1817 so that the highest priority ones come first.
1818 Do not change the order of elements of equal priority.
1819 If an option takes an argument, keep it and its argument together.
1821 If an option that takes no argument appears more
1822 than once, eliminate all but one copy of it. */
1825 sort_args (int argc
, char **argv
)
1827 char **new = xmalloc (argc
* sizeof *new);
1828 /* For each element of argv,
1829 the corresponding element of options is:
1830 0 for an option that takes no arguments,
1831 1 for an option that takes one argument, etc.
1832 -1 for an ordinary non-option argument. */
1833 int *options
= xnmalloc_atomic (argc
, sizeof *options
);
1834 int *priority
= xnmalloc_atomic (argc
, sizeof *priority
);
1836 int incoming_used
= 1;
1840 /* Categorize all the options,
1841 and figure out which argv elts are option arguments. */
1842 for (from
= 1; from
< argc
; from
++)
1846 if (argv
[from
][0] == '-')
1850 /* If we have found "--", don't consider
1851 any more arguments as options. */
1852 if (argv
[from
][1] == '-' && argv
[from
][2] == 0)
1854 /* Leave the "--", and everything following it, at the end. */
1855 for (; from
< argc
; from
++)
1857 priority
[from
] = -100;
1863 /* Look for a match with a known old-fashioned option. */
1864 for (i
= 0; i
< ARRAYELTS (standard_args
); i
++)
1865 if (!strcmp (argv
[from
], standard_args
[i
].name
))
1867 options
[from
] = standard_args
[i
].nargs
;
1868 priority
[from
] = standard_args
[i
].priority
;
1869 if (from
+ standard_args
[i
].nargs
>= argc
)
1870 fatal ("Option `%s' requires an argument\n", argv
[from
]);
1871 from
+= standard_args
[i
].nargs
;
1875 /* Look for a match with a known long option.
1876 MATCH is -1 if no match so far, -2 if two or more matches so far,
1877 >= 0 (the table index of the match) if just one match so far. */
1878 if (argv
[from
][1] == '-')
1880 char const *equals
= strchr (argv
[from
], '=');
1882 equals
? equals
- argv
[from
] : strlen (argv
[from
]);
1886 for (i
= 0; i
< ARRAYELTS (standard_args
); i
++)
1887 if (standard_args
[i
].longname
1888 && !strncmp (argv
[from
], standard_args
[i
].longname
,
1897 /* If we found exactly one match, use that. */
1900 options
[from
] = standard_args
[match
].nargs
;
1901 priority
[from
] = standard_args
[match
].priority
;
1902 /* If --OPTION=VALUE syntax is used,
1903 this option uses just one argv element. */
1906 if (from
+ options
[from
] >= argc
)
1907 fatal ("Option `%s' requires an argument\n", argv
[from
]);
1908 from
+= options
[from
];
1910 /* FIXME When match < 0, shouldn't there be some error,
1911 or at least indication to the user that there was a
1918 /* Copy the arguments, in order of decreasing priority, to NEW. */
1920 while (incoming_used
< argc
)
1923 int best_priority
= -9999;
1925 /* Find the highest priority remaining option.
1926 If several have equal priority, take the first of them. */
1927 for (from
= 1; from
< argc
; from
++)
1929 if (argv
[from
] != 0 && priority
[from
] > best_priority
)
1931 best_priority
= priority
[from
];
1934 /* Skip option arguments--they are tied to the options. */
1935 if (options
[from
] > 0)
1936 from
+= options
[from
];
1942 /* Copy the highest priority remaining option, with its args, to NEW.
1943 Unless it is a duplicate of the previous one. */
1944 if (! (options
[best
] == 0
1945 && ! strcmp (new[to
- 1], argv
[best
])))
1947 new[to
++] = argv
[best
];
1948 for (i
= 0; i
< options
[best
]; i
++)
1949 new[to
++] = argv
[best
+ i
+ 1];
1952 incoming_used
+= 1 + (options
[best
] > 0 ? options
[best
] : 0);
1954 /* Clear out this option in ARGV. */
1956 for (i
= 0; i
< options
[best
]; i
++)
1957 argv
[best
+ i
+ 1] = 0;
1960 /* If duplicate options were deleted, fill up extra space with null ptrs. */
1964 memcpy (argv
, new, sizeof (char *) * argc
);
1971 DEFUN ("kill-emacs", Fkill_emacs
, Skill_emacs
, 0, 1, "P",
1972 doc
: /* Exit the Emacs job and kill it.
1973 If ARG is an integer, return ARG as the exit program code.
1974 If ARG is a string, stuff it as keyboard input.
1976 This function is called upon receipt of the signals SIGTERM
1977 or SIGHUP, and upon SIGINT in batch mode.
1979 The value of `kill-emacs-hook', if not void,
1980 is a list of functions (of no args),
1981 all of which are called before Emacs is actually killed. */)
1984 struct gcpro gcpro1
;
1992 /* Fsignal calls emacs_abort () if it sees that waiting_for_input is
1994 waiting_for_input
= 0;
1995 Frun_hooks (1, &Qkill_emacs_hook
);
1998 #ifdef HAVE_X_WINDOWS
1999 /* Transfer any clipboards we own to the clipboard manager. */
2000 x_clipboard_manager_save_all ();
2003 shut_down_emacs (0, STRINGP (arg
) ? arg
: Qnil
);
2006 ns_release_autorelease_pool (ns_pool
);
2009 /* If we have an auto-save list file,
2010 kill it because we are exiting Emacs deliberately (not crashing).
2011 Do it after shut_down_emacs, which does an auto-save. */
2012 if (STRINGP (Vauto_save_list_file_name
))
2014 Lisp_Object listfile
;
2015 listfile
= Fexpand_file_name (Vauto_save_list_file_name
, Qnil
);
2016 unlink (SSDATA (listfile
));
2020 exit_code
= (XINT (arg
) < 0
2021 ? XINT (arg
) | INT_MIN
2022 : XINT (arg
) & INT_MAX
);
2024 exit_code
= EXIT_SUCCESS
;
2029 /* Perform an orderly shutdown of Emacs. Autosave any modified
2030 buffers, kill any child processes, clean up the terminal modes (if
2031 we're in the foreground), and other stuff like that. Don't perform
2032 any redisplay; this may be called when Emacs is shutting down in
2033 the background, or after its X connection has died.
2035 If SIG is a signal number, print a message for it.
2037 This is called by fatal signal handlers, X protocol error handlers,
2041 shut_down_emacs (int sig
, Lisp_Object stuff
)
2043 /* Prevent running of hooks from now on. */
2046 /* Don't update display from now on. */
2047 Vinhibit_redisplay
= Qt
;
2049 /* If we are controlling the terminal, reset terminal modes. */
2052 pid_t pgrp
= getpgrp ();
2053 pid_t tpgrp
= tcgetpgrp (0);
2054 if ((tpgrp
!= -1) && tpgrp
== pgrp
)
2056 reset_all_sys_modes ();
2057 if (sig
&& sig
!= SIGTERM
)
2059 static char const format
[] = "Fatal error %d: ";
2060 char buf
[sizeof format
- 2 + INT_STRLEN_BOUND (int)];
2061 int buflen
= sprintf (buf
, format
, sig
);
2062 char const *sig_desc
= safe_strsignal (sig
);
2063 emacs_write (STDERR_FILENO
, buf
, buflen
);
2064 emacs_write (STDERR_FILENO
, sig_desc
, strlen (sig_desc
));
2070 reset_all_sys_modes ();
2073 stuff_buffered_input (stuff
);
2075 inhibit_sentinels
= 1;
2076 kill_buffer_processes (Qnil
);
2077 Fdo_auto_save (Qt
, Qnil
);
2079 unlock_all_files ();
2081 /* There is a tendency for a SIGIO signal to arrive within exit,
2082 and cause a SIGHUP because the input descriptor is already closed. */
2085 /* Do this only if terminating normally, we want glyph matrices
2086 etc. in a core dump. */
2087 if (sig
== 0 || sig
== SIGTERM
)
2089 check_glyph_memory ();
2090 check_message_stack ();
2098 ns_term_shutdown (sig
);
2102 xml_cleanup_parser ();
2116 DEFUN ("dump-emacs", Fdump_emacs
, Sdump_emacs
, 2, 2, 0,
2117 doc
: /* Dump current state of Emacs into executable file FILENAME.
2118 Take symbols from SYMFILE (presumably the file you executed to run Emacs).
2119 This is used in the file `loadup.el' when building Emacs.
2121 You must run Emacs in batch mode in order to dump it. */)
2122 (Lisp_Object filename
, Lisp_Object symfile
)
2130 if (! noninteractive
)
2131 error ("Dumping Emacs works only in batch mode");
2134 error ("Emacs can be dumped only once");
2138 /* Warn if the gap between BSS end and heap start is larger than this. */
2139 # define MAX_HEAP_BSS_DIFF (1024*1024)
2141 if (heap_bss_diff
> MAX_HEAP_BSS_DIFF
)
2143 fprintf (stderr
, "**************************************************\n");
2144 fprintf (stderr
, "Warning: Your system has a gap between BSS and the\n");
2145 fprintf (stderr
, "heap (%"pMu
" bytes). This usually means that exec-shield\n",
2147 fprintf (stderr
, "or something similar is in effect. The dump may\n");
2148 fprintf (stderr
, "fail because of this. See the section about\n");
2149 fprintf (stderr
, "exec-shield in etc/PROBLEMS for more information.\n");
2150 fprintf (stderr
, "**************************************************\n");
2152 #endif /* GNU_LINUX */
2154 /* Bind `command-line-processed' to nil before dumping,
2155 so that the dumped Emacs will process its command line
2156 and set up to work with X windows if appropriate. */
2157 symbol
= intern ("command-line-processed");
2158 specbind (symbol
, Qnil
);
2160 CHECK_STRING (filename
);
2161 filename
= Fexpand_file_name (filename
, Qnil
);
2162 filename
= ENCODE_FILE (filename
);
2163 if (!NILP (symfile
))
2165 CHECK_STRING (symfile
);
2166 if (SCHARS (symfile
))
2168 symfile
= Fexpand_file_name (symfile
, Qnil
);
2169 symfile
= ENCODE_FILE (symfile
);
2174 Vpurify_flag
= Qnil
;
2177 set_time_zone_rule (dump_tz
);
2178 #ifndef LOCALTIME_CACHE
2179 /* Force a tz reload, since set_time_zone_rule doesn't. */
2185 /* Tell malloc where start of impure now is. */
2186 /* Also arrange for warnings when nearly out of space. */
2187 #ifndef SYSTEM_MALLOC
2189 /* On Windows, this was done before dumping, and that once suffices.
2190 Meanwhile, my_edata is not valid on Windows. */
2192 extern char my_edata
[];
2193 memory_warnings (my_edata
, malloc_warning
);
2195 #endif /* not WINDOWSNT */
2196 #endif /* not SYSTEM_MALLOC */
2197 #ifdef DOUG_LEA_MALLOC
2198 malloc_state_ptr
= malloc_get_state ();
2201 unexec (SSDATA (filename
), !NILP (symfile
) ? SSDATA (symfile
) : 0);
2203 #ifdef DOUG_LEA_MALLOC
2204 free (malloc_state_ptr
);
2208 Vlibrary_cache
= Qnil
;
2210 #ifdef HAVE_WINDOW_SYSTEM
2211 reset_image_types ();
2220 #endif /* not CANNOT_DUMP */
2223 /* Recover from setlocale (LC_ALL, ""). */
2227 /* The Emacs Lisp reader needs LC_NUMERIC to be "C",
2228 so that numbers are read and printed properly for Emacs Lisp. */
2229 setlocale (LC_NUMERIC
, "C");
2232 /* Set system locale CATEGORY, with previous locale *PLOCALE, to
2235 synchronize_locale (int category
, Lisp_Object
*plocale
, Lisp_Object desired_locale
)
2237 if (! EQ (*plocale
, desired_locale
))
2239 *plocale
= desired_locale
;
2240 setlocale (category
, (STRINGP (desired_locale
)
2241 ? SSDATA (desired_locale
)
2246 /* Set system time locale to match Vsystem_time_locale, if possible. */
2248 synchronize_system_time_locale (void)
2250 synchronize_locale (LC_TIME
, &Vprevious_system_time_locale
,
2251 Vsystem_time_locale
);
2254 /* Set system messages locale to match Vsystem_messages_locale, if
2257 synchronize_system_messages_locale (void)
2260 synchronize_locale (LC_MESSAGES
, &Vprevious_system_messages_locale
,
2261 Vsystem_messages_locale
);
2264 #endif /* HAVE_SETLOCALE */
2268 decode_env_path (const char *evarname
, const char *defalt
, bool empty
)
2270 const char *path
, *p
;
2271 Lisp_Object lpath
, element
, tem
;
2272 /* Default is to use "." for empty path elements.
2273 But if argument EMPTY is true, use nil instead. */
2274 Lisp_Object empty_element
= empty
? Qnil
: build_string (".");
2277 static const char *emacs_dir_env
= "%emacs_dir%/";
2278 const size_t emacs_dir_len
= strlen (emacs_dir_env
);
2279 const char *edir
= egetenv ("emacs_dir");
2280 char emacs_dir
[MAX_UTF8_PATH
];
2282 /* egetenv looks in process-environment, which holds the variables
2283 in their original system-locale encoding. We need emacs_dir to
2286 filename_from_ansi (edir
, emacs_dir
);
2289 /* It's okay to use getenv here, because this function is only used
2290 to initialize variables when Emacs starts up, and isn't called
2293 path
= getenv (evarname
);
2304 /* Ensure values from the environment use the proper directory separator. */
2310 char *path_utf8
, *q
, *d
;
2313 /* Convert each element of PATH to UTF-8. */
2314 p
= path_copy
= alloca (strlen (path
) + 1);
2315 strcpy (path_copy
, path
);
2316 d
= path_utf8
= alloca (4 * strlen (path
) + 1);
2319 q
= _mbschr (p
, SEPCHAR
);
2322 cnv_result
= filename_from_ansi (p
, d
);
2327 /* If conversion of this PATH elements fails, make sure
2328 destination pointer will stay put, thus effectively
2329 ignoring the offending element. */
2330 if (cnv_result
== 0)
2336 else if (cnv_result
!= 0 && d
> path_utf8
)
2337 d
[-1] = '\0'; /* remove last semi-colon and null-terminate PATH */
2339 path_copy
= path_utf8
;
2341 path_copy
= alloca (strlen (path
) + 1);
2342 strcpy (path_copy
, path
);
2344 dostounix_filename (path_copy
);
2351 p
= strchr (path
, SEPCHAR
);
2353 p
= path
+ strlen (path
);
2354 element
= (p
- path
? make_unibyte_string (path
, p
- path
)
2356 if (! NILP (element
))
2359 /* Relative file names in the default path are interpreted as
2360 being relative to $emacs_dir. */
2361 if (edir
&& defaulted
2362 && strncmp (path
, emacs_dir_env
, emacs_dir_len
) == 0)
2363 element
= Fexpand_file_name (Fsubstring
2365 make_number (emacs_dir_len
),
2367 build_unibyte_string (emacs_dir
));
2370 /* Add /: to the front of the name
2371 if it would otherwise be treated as magic. */
2372 tem
= Ffind_file_name_handler (element
, Qt
);
2374 /* However, if the handler says "I'm safe",
2375 don't bother adding /:. */
2379 prop
= Fget (tem
, intern ("safe-magic"));
2385 element
= concat2 (build_string ("/:"), element
);
2386 } /* !NILP (element) */
2388 lpath
= Fcons (element
, lpath
);
2394 return Fnreverse (lpath
);
2397 DEFUN ("daemonp", Fdaemonp
, Sdaemonp
, 0, 0, 0,
2398 doc
: /* Return non-nil if the current emacs process is a daemon.
2399 If the daemon was given a name argument, return that name. */)
2404 return build_string (daemon_name
);
2411 DEFUN ("daemon-initialized", Fdaemon_initialized
, Sdaemon_initialized
, 0, 0, 0,
2412 doc
: /* Mark the Emacs daemon as being initialized.
2413 This finishes the daemonization process by doing the other half of detaching
2414 from the parent process and its tty file descriptors. */)
2421 error ("This function can only be called if emacs is run as a daemon");
2423 if (daemon_pipe
[1] < 0)
2424 error ("The daemon has already been initialized");
2426 if (NILP (Vafter_init_time
))
2427 error ("This function can only be called after loading the init files");
2429 /* Get rid of stdin, stdout and stderr. */
2430 nfd
= emacs_open ("/dev/null", O_RDWR
, 0);
2432 err
|= dup2 (nfd
, 0) < 0;
2433 err
|= dup2 (nfd
, 1) < 0;
2434 err
|= dup2 (nfd
, 2) < 0;
2435 err
|= emacs_close (nfd
) != 0;
2437 /* Closing the pipe will notify the parent that it can exit.
2438 FIXME: In case some other process inherited the pipe, closing it here
2439 won't notify the parent because it's still open elsewhere, so we
2440 additionally send a byte, just to make sure the parent really exits.
2441 Instead, we should probably close the pipe in start-process and
2442 call-process to make sure the pipe is never inherited by
2444 err
|= write (daemon_pipe
[1], "\n", 1) < 0;
2445 err
|= emacs_close (daemon_pipe
[1]) != 0;
2446 /* Set it to an invalid value so we know we've already run this function. */
2447 daemon_pipe
[1] = -1;
2450 error ("I/O error during daemon initialization");
2455 syms_of_emacs (void)
2459 DEFSYM (Qfile_name_handler_alist
, "file-name-handler-alist");
2460 DEFSYM (Qrisky_local_variable
, "risky-local-variable");
2461 DEFSYM (Qkill_emacs
, "kill-emacs");
2462 DEFSYM (Qkill_emacs_hook
, "kill-emacs-hook");
2464 DEFVAR_LISP ("command-line-args", Vcommand_line_args
,
2465 doc
: /* Args passed by shell to Emacs, as a list of strings.
2466 Many arguments are deleted from the list as they are processed. */);
2468 DEFVAR_LISP ("system-type", Vsystem_type
,
2469 doc
: /* The value is a symbol indicating the type of operating system you are using.
2471 `gnu' compiled for a GNU Hurd system.
2472 `gnu/linux' compiled for a GNU/Linux system.
2473 `gnu/kfreebsd' compiled for a GNU system with a FreeBSD kernel.
2474 `darwin' compiled for Darwin (GNU-Darwin, Mac OS X, ...).
2475 `ms-dos' compiled as an MS-DOS application.
2476 `windows-nt' compiled as a native W32 application.
2477 `cygwin' compiled using the Cygwin library.
2478 Anything else (in Emacs 24.1, the possibilities are: aix, berkeley-unix,
2479 hpux, irix, usg-unix-v) indicates some sort of Unix system. */);
2480 Vsystem_type
= intern_c_string (SYSTEM_TYPE
);
2481 /* See configure.ac (and config.nt) for the possible SYSTEM_TYPEs. */
2483 DEFVAR_LISP ("system-configuration", Vsystem_configuration
,
2484 doc
: /* Value is string indicating configuration Emacs was built for.
2485 On MS-Windows, the value reflects the OS flavor and version on which
2486 Emacs is running. */);
2487 Vsystem_configuration
= build_string (EMACS_CONFIGURATION
);
2489 DEFVAR_LISP ("system-configuration-options", Vsystem_configuration_options
,
2490 doc
: /* String containing the configuration options Emacs was built with. */);
2491 Vsystem_configuration_options
= build_string (EMACS_CONFIG_OPTIONS
);
2493 DEFVAR_LISP ("system-configuration-features", Vsystem_configuration_features
,
2494 doc
: /* String listing some of the main features this Emacs was compiled with.
2495 An element of the form \"FOO\" generally means that HAVE_FOO was
2496 defined during the build. */);
2497 Vsystem_configuration_features
= build_string (EMACS_CONFIG_FEATURES
);
2499 DEFVAR_BOOL ("noninteractive", noninteractive1
,
2500 doc
: /* Non-nil means Emacs is running without interactive terminal. */);
2502 DEFVAR_LISP ("kill-emacs-hook", Vkill_emacs_hook
,
2503 doc
: /* Hook run when `kill-emacs' is called.
2504 Since `kill-emacs' may be invoked when the terminal is disconnected (or
2505 in other similar situations), functions placed on this hook should not
2506 expect to be able to interact with the user. To ask for confirmation,
2507 see `kill-emacs-query-functions' instead.
2509 Before Emacs 24.1, the hook was not run in batch mode, i.e., if
2510 `noninteractive' was non-nil. */);
2511 Vkill_emacs_hook
= Qnil
;
2513 DEFVAR_LISP ("path-separator", Vpath_separator
,
2514 doc
: /* String containing the character that separates directories in
2515 search paths, such as PATH and other similar environment variables. */);
2518 Vpath_separator
= make_string (&c
, 1);
2521 DEFVAR_LISP ("invocation-name", Vinvocation_name
,
2522 doc
: /* The program name that was used to run Emacs.
2523 Any directory names are omitted. */);
2525 DEFVAR_LISP ("invocation-directory", Vinvocation_directory
,
2526 doc
: /* The directory in which the Emacs executable was found, to run it.
2527 The value is nil if that directory's name is not known. */);
2529 DEFVAR_LISP ("installation-directory", Vinstallation_directory
,
2530 doc
: /* A directory within which to look for the `lib-src' and `etc' directories.
2531 In an installed Emacs, this is normally nil. It is non-nil if
2532 both `lib-src' (on MS-DOS, `info') and `etc' directories are found
2533 within the variable `invocation-directory' or its parent. For example,
2534 this is the case when running an uninstalled Emacs executable from its
2535 build directory. */);
2536 Vinstallation_directory
= Qnil
;
2538 DEFVAR_LISP ("system-messages-locale", Vsystem_messages_locale
,
2539 doc
: /* System locale for messages. */);
2540 Vsystem_messages_locale
= Qnil
;
2542 DEFVAR_LISP ("previous-system-messages-locale",
2543 Vprevious_system_messages_locale
,
2544 doc
: /* Most recently used system locale for messages. */);
2545 Vprevious_system_messages_locale
= Qnil
;
2547 DEFVAR_LISP ("system-time-locale", Vsystem_time_locale
,
2548 doc
: /* System locale for time. */);
2549 Vsystem_time_locale
= Qnil
;
2551 DEFVAR_LISP ("previous-system-time-locale", Vprevious_system_time_locale
,
2552 doc
: /* Most recently used system locale for time. */);
2553 Vprevious_system_time_locale
= Qnil
;
2555 DEFVAR_LISP ("before-init-time", Vbefore_init_time
,
2556 doc
: /* Value of `current-time' before Emacs begins initialization. */);
2557 Vbefore_init_time
= Qnil
;
2559 DEFVAR_LISP ("after-init-time", Vafter_init_time
,
2560 doc
: /* Value of `current-time' after loading the init files.
2561 This is nil during initialization. */);
2562 Vafter_init_time
= Qnil
;
2564 DEFVAR_BOOL ("inhibit-x-resources", inhibit_x_resources
,
2565 doc
: /* If non-nil, X resources, Windows Registry settings, and NS defaults are not used. */);
2566 inhibit_x_resources
= 0;
2568 DEFVAR_LISP ("emacs-copyright", Vemacs_copyright
,
2569 doc
: /* Short copyright string for this version of Emacs. */);
2570 Vemacs_copyright
= build_string (emacs_copyright
);
2572 DEFVAR_LISP ("emacs-version", Vemacs_version
,
2573 doc
: /* Version numbers of this version of Emacs. */);
2574 Vemacs_version
= build_string (emacs_version
);
2576 DEFVAR_LISP ("report-emacs-bug-address", Vreport_emacs_bug_address
,
2577 doc
: /* Address of mailing list for GNU Emacs bugs. */);
2578 Vreport_emacs_bug_address
= build_string (emacs_bugreport
);
2580 DEFVAR_LISP ("dynamic-library-alist", Vdynamic_library_alist
,
2581 doc
: /* Alist of dynamic libraries vs external files implementing them.
2582 Each element is a list (LIBRARY FILE...), where the car is a symbol
2583 representing a supported external library, and the rest are strings giving
2584 alternate filenames for that library.
2586 Emacs tries to load the library from the files in the order they appear on
2587 the list; if none is loaded, the running session of Emacs won't have access
2590 Note that image types `pbm' and `xbm' do not need entries in this variable
2591 because they do not depend on external libraries and are always available.
2593 Also note that this is not a generic facility for accessing external
2594 libraries; only those already known by Emacs will be loaded. */);
2595 Vdynamic_library_alist
= Qnil
;
2596 Fput (intern_c_string ("dynamic-library-alist"), Qrisky_local_variable
, Qt
);
2599 Vlibrary_cache
= Qnil
;
2600 staticpro (&Vlibrary_cache
);