1 /* Fully extensible Emacs, running on Unix, intended for GNU.
3 Copyright (C) 1985-1987, 1993-1995, 1997-1999, 2001-2016 Free Software
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 (at
11 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
28 #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"
56 #include <binary-io.h>
59 #ifdef HAVE_LIBSYSTEMD
60 # include <systemd/sd-daemon.h>
61 # include <sys/socket.h>
64 #ifdef HAVE_WINDOW_SYSTEM
66 #endif /* HAVE_WINDOW_SYSTEM */
69 #include "intervals.h"
70 #include "character.h"
75 #include "blockinput.h"
76 #include "syssignal.h"
79 #include "termhooks.h"
84 #include "composite.h"
85 #include "dispextern.h"
89 #include "sysselect.h"
95 #if (defined PROFILING \
96 && (defined __FreeBSD__ || defined GNU_LINUX || defined __MINGW32__))
97 # include <sys/gmon.h>
98 extern void moncontrol (int mode
);
101 #ifdef HAVE_SETLOCALE
109 #ifdef HAVE_SETRLIMIT
110 #include <sys/time.h>
111 #include <sys/resource.h>
114 #ifdef HAVE_PERSONALITY_LINUX32
115 #include <sys/personality.h>
118 static const char emacs_version
[] = PACKAGE_VERSION
;
119 static const char emacs_copyright
[] = COPYRIGHT
;
120 static const char emacs_bugreport
[] = PACKAGE_BUGREPORT
;
122 /* Empty lisp strings. To avoid having to build any others. */
123 Lisp_Object empty_unibyte_string
, empty_multibyte_string
;
126 /* Cache for externally loaded libraries. */
127 Lisp_Object Vlibrary_cache
;
130 /* Set after Emacs has started up the first time.
131 Prevents reinitialization of the Lisp world and keymaps
132 on subsequent starts. */
135 /* Set to true if this instance of Emacs might dump. */
136 #ifndef DOUG_LEA_MALLOC
142 extern void unexec_init_emacs_zone (void);
145 /* If true, Emacs should not attempt to use a window-specific code,
146 but instead should use the virtual terminal under which it was started. */
147 bool inhibit_window_system
;
149 /* If true, a filter or a sentinel is running. Tested to save the match
150 data on the first attempt to change it inside asynchronous code. */
151 bool running_asynch_code
;
153 #if defined (HAVE_X_WINDOWS) || defined (HAVE_NS)
154 /* If true, -d was specified, meaning we're using some window system. */
158 /* An address near the bottom of the stack.
159 Tells GC how to save a copy of the stack. */
163 /* The gap between BSS end and heap start as far as we can tell. */
164 static uprintmax_t heap_bss_diff
;
167 /* To run as a daemon under Cocoa or Windows, we must do a fork+exec,
170 On Cocoa, CoreFoundation lib fails in forked process:
171 http://developer.apple.com/ReleaseNotes/
172 CoreFoundation/CoreFoundation.html)
174 On Windows, a Cygwin fork child cannot access the USER subsystem.
176 We mark being in the exec'd process by a daemon name argument of
177 form "--daemon=\nFD0,FD1\nNAME" where FD are the pipe file descriptors,
178 NAME is the original daemon name, if any. */
179 #if defined NS_IMPL_COCOA || (defined HAVE_NTGUI && defined CYGWIN)
180 # define DAEMON_MUST_EXEC
183 /* True means running Emacs without interactive terminal. */
186 /* True means remove site-lisp directories from load-path. */
189 /* True means put details like time stamps into builds. */
192 /* Name for the server started by the daemon.*/
193 static char *daemon_name
;
196 /* Pipe used to send exit notification to the daemon parent at
200 HANDLE w32_daemon_event
;
203 /* Save argv and argc. */
207 static void sort_args (int argc
, char **argv
);
208 static void syms_of_emacs (void);
210 /* C99 needs each string to be at most 4095 characters, and the usage
211 strings below are split to not overflow this limit. */
212 static char const *const usage_message
[] =
215 Run Emacs, the extensible, customizable, self-documenting real-time\n\
216 display editor. The recommended way to start Emacs for normal editing\n\
217 is with no options at all.\n\
219 Run M-x info RET m emacs RET m emacs invocation RET inside Emacs to\n\
220 read the main documentation for these command-line arguments.\n\
222 Initialization options:\n\
226 --batch do not do interactive display; implies -q\n\
227 --chdir DIR change to directory DIR\n\
228 --daemon start a server in the background\n\
229 --debug-init enable Emacs Lisp debugger for init file\n\
230 --display, -d DISPLAY use X server DISPLAY\n\
233 --no-build-details do not add build details such as time stamps\n\
234 --no-desktop do not load a saved desktop\n\
235 --no-init-file, -q load neither ~/.emacs nor default.el\n\
236 --no-loadup, -nl do not load loadup.el into bare Emacs\n\
237 --no-site-file do not load site-start.el\n\
238 --no-x-resources do not load X resources\n\
239 --no-site-lisp, -nsl do not add site-lisp directories to load-path\n\
240 --no-splash do not display a splash screen on startup\n\
241 --no-window-system, -nw do not communicate with X, ignoring $DISPLAY\n\
244 --quick, -Q equivalent to:\n\
245 -q --no-site-file --no-site-lisp --no-splash\n\
247 --script FILE run FILE as an Emacs Lisp script\n\
248 --terminal, -t DEVICE use DEVICE for terminal I/O\n\
249 --user, -u USER load ~USER/.emacs instead of your own\n\
255 FILE visit FILE using find-file\n\
256 +LINE go to line LINE in next FILE\n\
257 +LINE:COLUMN go to line LINE, column COLUMN, in next FILE\n\
258 --directory, -L DIR prepend DIR to load-path (with :DIR, append DIR)\n\
259 --eval EXPR evaluate Emacs Lisp expression EXPR\n\
260 --execute EXPR evaluate Emacs Lisp expression EXPR\n\
263 --file FILE visit FILE using find-file\n\
264 --find-file FILE visit FILE using find-file\n\
265 --funcall, -f FUNC call Emacs Lisp function FUNC with no arguments\n\
266 --insert FILE insert contents of FILE into current buffer\n\
267 --kill exit without asking for confirmation\n\
268 --load, -l FILE load Emacs Lisp FILE using the load function\n\
269 --visit FILE visit FILE using find-file\n\
275 --background-color, -bg COLOR window background color\n\
276 --basic-display, -D disable many display features;\n\
277 used for debugging Emacs\n\
278 --border-color, -bd COLOR main border color\n\
279 --border-width, -bw WIDTH width of main border\n\
282 --color, --color=MODE override color mode for character terminals;\n\
283 MODE defaults to `auto', and\n\
284 can also be `never', `always',\n\
285 or a mode name like `ansi8'\n\
286 --cursor-color, -cr COLOR color of the Emacs cursor indicating point\n\
287 --font, -fn FONT default font; must be fixed-width\n\
288 --foreground-color, -fg COLOR window foreground color\n\
291 --fullheight, -fh make the first frame high as the screen\n\
292 --fullscreen, -fs make the first frame fullscreen\n\
293 --fullwidth, -fw make the first frame wide as the screen\n\
294 --maximized, -mm make the first frame maximized\n\
295 --geometry, -g GEOMETRY window geometry\n\
298 --no-bitmap-icon, -nbi do not use picture of gnu for Emacs icon\n\
299 --iconic start Emacs in iconified state\n\
300 --internal-border, -ib WIDTH width between text and main border\n\
301 --line-spacing, -lsp PIXELS additional space to put between lines\n\
302 --mouse-color, -ms COLOR mouse cursor color in Emacs window\n\
303 --name NAME title for initial Emacs frame\n\
306 --no-blinking-cursor, -nbc disable blinking cursor\n\
307 --reverse-video, -r, -rv switch foreground and background\n\
308 --title, -T TITLE title for initial Emacs frame\n\
309 --vertical-scroll-bars, -vb enable vertical scroll bars\n\
310 --xrm XRESOURCES set additional X resources\n\
311 --parent-id XID set parent window\n\
312 --help display this help and exit\n\
313 --version output version information and exit\n\
317 You can generally also specify long option names with a single -; for\n\
318 example, -batch as well as --batch. You can use any unambiguous\n\
319 abbreviation for a --option.\n\
321 Various environment variables and window system resources also affect\n\
322 the operation of Emacs. See the main documentation.\n\
324 Report bugs to " PACKAGE_BUGREPORT
". First, please see the Bugs\n\
325 section of the Emacs manual or the file BUGS.\n"
329 /* True if handling a fatal error already. */
330 bool fatal_error_in_progress
;
333 /* NS autrelease pool, for memory management. */
334 static void *ns_pool
;
339 setlocale (int cat
, char const *locale
)
345 /* True if the current system locale uses UTF-8 encoding. */
351 mbstate_t mbs
= { 0 };
352 return mbrtowc (&wc
, "\xc4\x80", 2, &mbs
) == 2 && wc
== 0x100;
359 /* Report a fatal error due to signal SIG, output a backtrace of at
360 most BACKTRACE_LIMIT lines, and exit. */
362 terminate_due_to_signal (int sig
, int backtrace_limit
)
364 signal (sig
, SIG_DFL
);
366 if (attempt_orderly_shutdown_on_fatal_signal
)
368 /* If fatal error occurs in code below, avoid infinite recursion. */
369 if (! fatal_error_in_progress
)
371 fatal_error_in_progress
= 1;
373 totally_unblock_input ();
374 if (sig
== SIGTERM
|| sig
== SIGHUP
|| sig
== SIGINT
)
375 Fkill_emacs (make_number (sig
));
377 shut_down_emacs (sig
, Qnil
);
378 emacs_backtrace (backtrace_limit
);
382 /* Signal the same code; this time it will really be fatal.
383 Since we're in a signal handler, the signal is blocked, so we
384 have to unblock it if we want to really receive it. */
388 sigemptyset (&unblocked
);
389 sigaddset (&unblocked
, sig
);
390 pthread_sigmask (SIG_UNBLOCK
, &unblocked
, 0);
396 /* This shouldn't be executed, but it prevents a warning. */
400 /* Code for dealing with Lisp access to the Unix command line. */
403 init_cmdargs (int argc
, char **argv
, int skip_args
, char *original_pwd
)
406 Lisp_Object name
, dir
, handler
;
407 ptrdiff_t count
= SPECPDL_INDEX ();
408 Lisp_Object raw_name
;
409 AUTO_STRING (slash_colon
, "/:");
415 /* Must use argv[0] converted to UTF-8, as it begets many standard
416 file and directory names. */
418 char argv0
[MAX_UTF8_PATH
];
420 if (filename_from_ansi (argv
[0], argv0
) == 0)
421 raw_name
= build_unibyte_string (argv0
);
423 raw_name
= build_unibyte_string (argv
[0]);
426 raw_name
= build_unibyte_string (argv
[0]);
429 /* Add /: to the front of the name
430 if it would otherwise be treated as magic. */
431 handler
= Ffind_file_name_handler (raw_name
, Qt
);
432 if (! NILP (handler
))
433 raw_name
= concat2 (slash_colon
, raw_name
);
435 Vinvocation_name
= Ffile_name_nondirectory (raw_name
);
436 Vinvocation_directory
= Ffile_name_directory (raw_name
);
438 /* If we got no directory in argv[0], search PATH to find where
439 Emacs actually came from. */
440 if (NILP (Vinvocation_directory
))
443 int yes
= openp (Vexec_path
, Vinvocation_name
,
444 Vexec_suffixes
, &found
, make_number (X_OK
), false);
447 /* Add /: to the front of the name
448 if it would otherwise be treated as magic. */
449 handler
= Ffind_file_name_handler (found
, Qt
);
450 if (! NILP (handler
))
451 found
= concat2 (slash_colon
, found
);
452 Vinvocation_directory
= Ffile_name_directory (found
);
456 if (!NILP (Vinvocation_directory
)
457 && NILP (Ffile_name_absolute_p (Vinvocation_directory
)))
458 /* Emacs was started with relative path, like ./emacs.
462 original_pwd
? build_unibyte_string (original_pwd
) : Qnil
;
464 Vinvocation_directory
= Fexpand_file_name (Vinvocation_directory
, odir
);
467 Vinstallation_directory
= Qnil
;
469 if (!NILP (Vinvocation_directory
))
471 dir
= Vinvocation_directory
;
473 /* If we are running from the build directory, set DIR to the
474 src subdirectory of the Emacs tree, like on Posix
476 if (SBYTES (dir
) > sizeof ("/i386/") - 1
477 && 0 == strcmp (SSDATA (dir
) + SBYTES (dir
) - sizeof ("/i386/") + 1,
479 dir
= Fexpand_file_name (build_string ("../.."), dir
);
480 #else /* !WINDOWSNT */
482 name
= Fexpand_file_name (Vinvocation_name
, dir
);
485 Lisp_Object tem
, lib_src_exists
;
486 Lisp_Object etc_exists
, info_exists
;
488 /* See if dir contains subdirs for use by Emacs.
489 Check for the ones that would exist in a build directory,
490 not including lisp and info. */
491 tem
= Fexpand_file_name (build_string ("lib-src"), dir
);
492 lib_src_exists
= Ffile_exists_p (tem
);
495 /* MSDOS installations frequently remove lib-src, but we still
496 must set installation-directory, or else info won't find
497 its files (it uses the value of installation-directory). */
498 tem
= Fexpand_file_name (build_string ("info"), dir
);
499 info_exists
= Ffile_exists_p (tem
);
504 if (!NILP (lib_src_exists
) || !NILP (info_exists
))
506 tem
= Fexpand_file_name (build_string ("etc"), dir
);
507 etc_exists
= Ffile_exists_p (tem
);
508 if (!NILP (etc_exists
))
510 Vinstallation_directory
511 = Ffile_name_as_directory (dir
);
516 /* See if dir's parent contains those subdirs. */
517 tem
= Fexpand_file_name (build_string ("../lib-src"), dir
);
518 lib_src_exists
= Ffile_exists_p (tem
);
522 /* See the MSDOS commentary above. */
523 tem
= Fexpand_file_name (build_string ("../info"), dir
);
524 info_exists
= Ffile_exists_p (tem
);
529 if (!NILP (lib_src_exists
) || !NILP (info_exists
))
531 tem
= Fexpand_file_name (build_string ("../etc"), dir
);
532 etc_exists
= Ffile_exists_p (tem
);
533 if (!NILP (etc_exists
))
535 tem
= Fexpand_file_name (build_string (".."), dir
);
536 Vinstallation_directory
537 = Ffile_name_as_directory (tem
);
542 /* If the Emacs executable is actually a link,
543 next try the dir that the link points into. */
544 tem
= Ffile_symlink_p (name
);
547 name
= Fexpand_file_name (tem
, dir
);
548 dir
= Ffile_name_directory (name
);
555 Vcommand_line_args
= Qnil
;
557 for (i
= argc
- 1; i
>= 0; i
--)
559 if (i
== 0 || i
> skip_args
)
560 /* For the moment, we keep arguments as is in unibyte strings.
561 They are decoded in the function command-line after we know
562 locale-coding-system. */
564 = Fcons (build_unibyte_string (argv
[i
]), Vcommand_line_args
);
567 unbind_to (count
, Qnil
);
570 DEFUN ("invocation-name", Finvocation_name
, Sinvocation_name
, 0, 0, 0,
571 doc
: /* Return the program name that was used to run Emacs.
572 Any directory names are omitted. */)
575 return Fcopy_sequence (Vinvocation_name
);
578 DEFUN ("invocation-directory", Finvocation_directory
, Sinvocation_directory
,
580 doc
: /* Return the directory name in which the Emacs executable was located. */)
583 return Fcopy_sequence (Vinvocation_directory
);
587 /* Test whether the next argument in ARGV matches SSTR or a prefix of
588 LSTR (at least MINLEN characters). If so, then if VALPTR is non-null
589 (the argument is supposed to have a value) store in *VALPTR either
590 the next argument or the portion of this one after the equal sign.
591 ARGV is read starting at position *SKIPPTR; this index is advanced
592 by the number of arguments used.
594 Too bad we can't just use getopt for all of this, but we don't have
595 enough information to do it right. */
598 argmatch (char **argv
, int argc
, const char *sstr
, const char *lstr
,
599 int minlen
, char **valptr
, int *skipptr
)
605 /* Don't access argv[argc]; give up in advance. */
606 if (argc
<= *skipptr
+ 1)
609 arg
= argv
[*skipptr
+1];
612 if (strcmp (arg
, sstr
) == 0)
616 *valptr
= argv
[*skipptr
+2];
623 arglen
= (valptr
!= NULL
&& (p
= strchr (arg
, '=')) != NULL
624 ? p
- arg
: strlen (arg
));
625 if (lstr
== 0 || arglen
< minlen
|| strncmp (arg
, lstr
, arglen
) != 0)
627 else if (valptr
== NULL
)
638 else if (argv
[*skipptr
+2] != NULL
)
640 *valptr
= argv
[*skipptr
+2];
650 /* Close standard output and standard error, reporting any write
651 errors as best we can. This is intended for use with atexit. */
653 close_output_streams (void)
655 if (close_stream (stdout
) != 0)
657 emacs_perror ("Write error to standard output");
658 _exit (EXIT_FAILURE
);
661 if (close_stream (stderr
) != 0)
662 _exit (EXIT_FAILURE
);
667 main (int argc
, char **argv
)
670 char stack_bottom_variable
;
671 bool do_initial_setlocale
;
674 #ifdef HAVE_SETRLIMIT
680 #ifdef DAEMON_MUST_EXEC
685 /* If we use --chdir, this records the original directory. */
686 char *original_pwd
= 0;
691 might_dump
= !initialized
;
697 char *heap_start
= my_heap_start ();
698 heap_bss_diff
= heap_start
- max (my_endbss
, my_endbss_static
);
702 #if defined WINDOWSNT || defined HAVE_NTGUI
703 /* Set global variables used to detect Windows version. Do this as
704 early as possible. (unexw32.c calls this function as well, but
705 the additional call here is harmless.) */
706 cache_system_info ();
708 /* On Windows 9X, we have to load UNICOWS.DLL as early as possible,
709 to have non-stub implementations of APIs we need to convert file
710 names between UTF-8 and the system's ANSI codepage. */
711 maybe_load_unicows_dll ();
713 /* This has to be done before module_init is called below, so that
714 the latter could use the thread ID of the main thread. */
715 w32_init_main_thread ();
718 #ifdef RUN_TIME_REMAP
720 run_time_remap (argv
[0]);
723 /* If using unexmacosx.c (set by s/darwin.h), we must do this. */
726 unexec_init_emacs_zone ();
729 init_standard_fds ();
730 atexit (close_output_streams
);
736 sort_args (argc
, argv
);
738 while (argv
[argc
]) argc
++;
740 if (argmatch (argv
, argc
, "-version", "--version", 3, NULL
, &skip_args
))
742 const char *version
, *copyright
;
745 Lisp_Object tem
, tem2
;
746 tem
= Fsymbol_value (intern_c_string ("emacs-version"));
747 tem2
= Fsymbol_value (intern_c_string ("emacs-copyright"));
750 fprintf (stderr
, "Invalid value of 'emacs-version'\n");
755 fprintf (stderr
, "Invalid value of 'emacs-copyright'\n");
760 version
= SSDATA (tem
);
761 copyright
= SSDATA (tem2
);
766 version
= emacs_version
;
767 copyright
= emacs_copyright
;
769 printf ("%s %s\n", PACKAGE_NAME
, version
);
770 printf ("%s\n", copyright
);
771 printf ("%s comes with ABSOLUTELY NO WARRANTY.\n", PACKAGE_NAME
);
772 printf ("You may redistribute copies of %s\n", PACKAGE_NAME
);
773 printf ("under the terms of the GNU General Public License.\n");
774 printf ("For more information about these matters, ");
775 printf ("see the file named COPYING.\n");
779 if (argmatch (argv
, argc
, "-chdir", "--chdir", 4, &ch_to_dir
, &skip_args
))
782 /* argv[] array is kept in its original ANSI codepage encoding,
783 we need to convert to UTF-8, for chdir to work. */
784 char newdir
[MAX_UTF8_PATH
];
786 filename_from_ansi (ch_to_dir
, newdir
);
789 original_pwd
= emacs_get_current_dir_name ();
790 if (chdir (ch_to_dir
) != 0)
792 fprintf (stderr
, "%s: Can't chdir to %s: %s\n",
793 argv
[0], ch_to_dir
, strerror (errno
));
798 dumping
= !initialized
&& (strcmp (argv
[argc
- 1], "dump") == 0
799 || strcmp (argv
[argc
- 1], "bootstrap") == 0);
801 #ifdef HAVE_PERSONALITY_LINUX32
802 if (dumping
&& ! getenv ("EMACS_HEAP_EXEC"))
804 /* Set this so we only do this once. */
805 xputenv ("EMACS_HEAP_EXEC=true");
807 /* A flag to turn off address randomization which is introduced
808 in linux kernel shipped with fedora core 4 */
809 #define ADD_NO_RANDOMIZE 0x0040000
810 personality (PER_LINUX32
| ADD_NO_RANDOMIZE
);
811 #undef ADD_NO_RANDOMIZE
813 execvp (argv
[0], argv
);
815 /* If the exec fails, try to dump anyway. */
816 emacs_perror (argv
[0]);
818 #endif /* HAVE_PERSONALITY_LINUX32 */
820 #if defined (HAVE_SETRLIMIT) && defined (RLIMIT_STACK) && !defined (CYGWIN)
821 /* Extend the stack space available. Don't do that if dumping,
822 since some systems (e.g. DJGPP) might define a smaller stack
823 limit at that time. And it's not needed on Cygwin, since emacs
824 is built with an 8MB stack. Moreover, the setrlimit call can
825 cause problems on Cygwin
826 (https://www.cygwin.com/ml/cygwin/2015-07/msg00096.html). */
829 && (!noninteractive
|| initialized
)
831 && !getrlimit (RLIMIT_STACK
, &rlim
))
834 /* Approximate the amount regex.c needs per unit of re_max_failures. */
835 int ratio
= 20 * sizeof (char *);
836 /* Then add 33% to cover the size of the smaller stacks that regex.c
837 successively allocates and discards, on its way to the maximum. */
839 /* Add in some extra to cover
840 what we're likely to use for other reasons. */
841 newlim
= re_max_failures
* ratio
+ 200000;
843 /* NetBSD (at least NetBSD 1.2G and former) has a bug in its
844 stack allocation routine for new process that the allocation
845 fails if stack limit is not on page boundary. So, round up the
846 new limit to page boundary. */
847 newlim
= (newlim
+ getpagesize () - 1) / getpagesize () * getpagesize ();
849 if (newlim
> rlim
.rlim_max
)
851 newlim
= rlim
.rlim_max
;
852 /* Don't let regex.c overflow the stack we have. */
853 re_max_failures
= (newlim
- 200000) / ratio
;
855 if (rlim
.rlim_cur
< newlim
)
856 rlim
.rlim_cur
= newlim
;
858 setrlimit (RLIMIT_STACK
, &rlim
);
860 #endif /* HAVE_SETRLIMIT and RLIMIT_STACK and not CYGWIN */
862 /* Record (approximately) where the stack begins. */
863 stack_bottom
= &stack_bottom_variable
;
867 emacs_backtrace (-1);
869 #if !defined SYSTEM_MALLOC && !defined HYBRID_MALLOC
870 /* Arrange to get warning messages as memory fills up. */
871 memory_warnings (0, malloc_warning
);
873 /* Call malloc at least once, to run malloc_initialize_hook.
874 Also call realloc and free for consistency. */
875 free (realloc (malloc (4), 4));
877 #endif /* not SYSTEM_MALLOC and not HYBRID_MALLOC */
880 SET_BINARY (fileno (stdin
));
882 SET_BINARY (fileno (stdout
));
885 /* Skip initial setlocale if LC_ALL is "C", as it's not needed in that case.
886 The build procedure uses this while dumping, to ensure that the
887 dumped Emacs does not have its system locale tables initialized,
888 as that might cause screwups when the dumped Emacs starts up. */
890 char *lc_all
= getenv ("LC_ALL");
891 do_initial_setlocale
= ! lc_all
|| strcmp (lc_all
, "C");
894 /* Set locale now, so that initial error messages are localized properly.
895 fixup_locale must wait until later, since it builds strings. */
896 if (do_initial_setlocale
)
897 setlocale (LC_ALL
, "");
898 text_quoting_flag
= using_utf8 ();
900 inhibit_window_system
= 0;
902 /* Handle the -t switch, which specifies filename to use as terminal. */
906 if (argmatch (argv
, argc
, "-t", "--terminal", 4, &term
, &skip_args
))
908 emacs_close (STDIN_FILENO
);
909 emacs_close (STDOUT_FILENO
);
910 int result
= emacs_open (term
, O_RDWR
, 0);
911 if (result
!= STDIN_FILENO
912 || (fcntl (STDIN_FILENO
, F_DUPFD_CLOEXEC
, STDOUT_FILENO
)
915 char *errstring
= strerror (errno
);
916 fprintf (stderr
, "%s: %s: %s\n", argv
[0], term
, errstring
);
919 if (! isatty (STDIN_FILENO
))
921 fprintf (stderr
, "%s: %s: not a tty\n", argv
[0], term
);
924 fprintf (stderr
, "Using %s\n", term
);
925 #ifdef HAVE_WINDOW_SYSTEM
926 inhibit_window_system
= true; /* -t => -nw */
933 /* Command line option --no-windows is deprecated and thus not mentioned
934 in the manual and usage information. */
935 if (argmatch (argv
, argc
, "-nw", "--no-window-system", 6, NULL
, &skip_args
)
936 || argmatch (argv
, argc
, "-nw", "--no-windows", 6, NULL
, &skip_args
))
937 inhibit_window_system
= 1;
939 /* Handle the -batch switch, which means don't do interactive display. */
941 if (argmatch (argv
, argc
, "-batch", "--batch", 5, NULL
, &skip_args
))
944 Vundo_outer_limit
= Qnil
;
946 if (argmatch (argv
, argc
, "-script", "--script", 3, &junk
, &skip_args
))
948 noninteractive
= 1; /* Set batch mode. */
949 /* Convert --script to -scriptload, un-skip it, and sort again
950 so that it will be handled in proper sequence. */
951 /* FIXME broken for --script=FILE - is that supposed to work? */
952 argv
[skip_args
- 1] = (char *) "-scriptload";
954 sort_args (argc
, argv
);
957 /* Handle the --help option, which gives a usage message. */
958 if (argmatch (argv
, argc
, "-help", "--help", 3, NULL
, &skip_args
))
961 printf ("Usage: %s [OPTION-OR-FILENAME]...\n", argv
[0]);
962 for (i
= 0; i
< ARRAYELTS (usage_message
); i
++)
963 fputs (usage_message
[i
], stdout
);
968 /* Make sure IS_DAEMON starts up as false. */
971 w32_daemon_event
= NULL
;
977 if (argmatch (argv
, argc
, "-daemon", "--daemon", 5, NULL
, &skip_args
)
978 || argmatch (argv
, argc
, "-daemon", "--daemon", 5, &dname_arg
, &skip_args
))
983 /* Start as a daemon: fork a new child process which will run the
984 rest of the initialization code, then exit.
986 Detaching a daemon requires the following steps:
990 - close the tty file-descriptors
992 We only want to do the last 2 steps once the daemon is ready to
993 serve requests, i.e. after loading .emacs (initialization).
994 OTOH initialization may start subprocesses (e.g. ispell) and these
995 should be run from the proper process (the one that will end up
996 running as daemon) and with the proper "session id" in order for
997 them to keep working after detaching, so fork and setsid need to be
998 performed before initialization.
1000 We want to avoid exiting before the server socket is ready, so
1001 use a pipe for synchronization. The parent waits for the child
1002 to close its end of the pipe (using `daemon-initialized')
1004 if (emacs_pipe (daemon_pipe
) != 0)
1006 fprintf (stderr
, "Cannot pipe!\n");
1010 #ifdef HAVE_LIBSYSTEMD
1011 /* Read the number of sockets passed through by systemd. */
1012 int systemd_socket
= sd_listen_fds (1);
1014 if (systemd_socket
> 1)
1017 "Warning: systemd passed more than one socket to Emacs.\n"
1018 "Try 'Accept=false' in the Emacs socket unit file.\n"));
1019 else if (systemd_socket
== 1
1020 && (0 < sd_is_socket (SD_LISTEN_FDS_START
,
1021 AF_UNSPEC
, SOCK_STREAM
, 1)))
1022 sockfd
= SD_LISTEN_FDS_START
;
1023 #endif /* HAVE_LIBSYSTEMD */
1025 #ifndef DAEMON_MUST_EXEC
1027 fprintf (stderr
, "\nWarning: due to a long standing Gtk+ bug\nhttp://bugzilla.gnome.org/show_bug.cgi?id=85715\n\
1028 Emacs might crash when run in daemon mode and the X11 connection is unexpectedly lost.\n\
1029 Using an Emacs configured with --with-x-toolkit=lucid does not have this problem.\n");
1030 #endif /* USE_GTK */
1032 #else /* DAEMON_MUST_EXEC */
1033 if (!dname_arg
|| !strchr (dname_arg
, '\n'))
1034 f
= fork (); /* in orig */
1036 f
= 0; /* in exec'd */
1037 #endif /* !DAEMON_MUST_EXEC */
1043 /* Close unused writing end of the pipe. */
1044 emacs_close (daemon_pipe
[1]);
1046 /* Just wait for the child to close its end of the pipe. */
1049 retval
= read (daemon_pipe
[0], &buf
, 1);
1051 while (retval
== -1 && errno
== EINTR
);
1055 fprintf (stderr
, "Error reading status from child\n");
1058 else if (retval
== 0)
1060 fprintf (stderr
, "Error: server did not start correctly\n");
1064 emacs_close (daemon_pipe
[0]);
1069 emacs_perror ("fork");
1070 exit (EXIT_CANCELED
);
1073 #ifdef DAEMON_MUST_EXEC
1075 /* In orig process, forked as child, OR in exec'd. */
1076 if (!dname_arg
|| !strchr (dname_arg
, '\n'))
1077 { /* In orig, child: now exec w/special daemon name. */
1080 snprintf (fdStr
, sizeof fdStr
,
1081 "--daemon=\n%d,%d\n%s", daemon_pipe
[0],
1082 daemon_pipe
[1], dname_arg
? dname_arg
: "");
1084 if (! (0 <= fdStrlen
&& fdStrlen
< sizeof fdStr
))
1086 fprintf (stderr
, "daemon: child name too long\n");
1087 exit (EXIT_CANNOT_INVOKE
);
1090 argv
[skip_args
] = fdStr
;
1092 fcntl (daemon_pipe
[0], F_SETFD
, 0);
1093 fcntl (daemon_pipe
[1], F_SETFD
, 0);
1094 execvp (argv
[0], argv
);
1095 emacs_perror (argv
[0]);
1096 exit (errno
== ENOENT
? EXIT_ENOENT
: EXIT_CANNOT_INVOKE
);
1099 /* In exec'd: parse special dname into pipe and name info. */
1100 if (!dname_arg
|| !strchr (dname_arg
, '\n')
1101 || strlen (dname_arg
) < 1 || strlen (dname_arg
) > 70)
1103 fprintf (stderr
, "emacs daemon: daemon name absent or too long\n");
1104 exit (EXIT_CANNOT_INVOKE
);
1106 dname_arg2
[0] = '\0';
1107 sscanf (dname_arg
, "\n%d,%d\n%s", &(daemon_pipe
[0]), &(daemon_pipe
[1]),
1109 dname_arg
= *dname_arg2
? dname_arg2
: NULL
;
1110 fcntl (daemon_pipe
[1], F_SETFD
, FD_CLOEXEC
);
1112 #endif /* DAEMON_MUST_EXEC */
1114 /* Close unused reading end of the pipe. */
1115 emacs_close (daemon_pipe
[0]);
1118 #elif defined(WINDOWSNT)
1119 /* Indicate that we want daemon mode. */
1120 w32_daemon_event
= CreateEvent (NULL
, TRUE
, FALSE
, W32_DAEMON_EVENT
);
1121 if (w32_daemon_event
== NULL
)
1123 fprintf (stderr
, "Couldn't create MS-Windows event for daemon: %s\n",
1128 fprintf (stderr
, "This platform does not support the -daemon flag.\n");
1132 daemon_name
= xstrdup (dname_arg
);
1135 #if defined HAVE_PTHREAD && !defined SYSTEM_MALLOC \
1136 && !defined DOUG_LEA_MALLOC && !defined HYBRID_MALLOC
1137 # ifndef CANNOT_DUMP
1138 /* Do not make gmalloc thread-safe when creating bootstrap-emacs, as
1139 that causes an infinite recursive loop with FreeBSD. See
1140 Bug#14569. The part of this bug involving Cygwin is no longer
1141 relevant, now that Cygwin defines HYBRID_MALLOC. */
1142 if (!noninteractive
|| initialized
)
1144 malloc_enable_thread ();
1147 init_signals (dumping
);
1149 noninteractive1
= noninteractive
;
1151 /* Perform basic initializations (not merely interning symbols). */
1158 init_charset_once ();
1159 init_coding_once ();
1160 init_syntax_once (); /* Create standard syntax table. */
1161 init_category_once (); /* Create standard category table. */
1162 init_casetab_once (); /* Must be done before init_buffer_once. */
1163 init_buffer_once (); /* Create buffer table and some buffers. */
1164 init_minibuf_once (); /* Create list of minibuffers. */
1165 /* Must precede init_window_once. */
1167 /* Call syms_of_xfaces before init_window_once because that
1168 function creates Vterminal_frame. Termcap frames now use
1169 faces, and the face implementation uses some symbols as
1172 /* XXX syms_of_keyboard uses some symbols in keymap.c. It would
1173 be better to arrange things not to have this dependency. */
1175 /* Call syms_of_keyboard before init_window_once because
1176 keyboard sets up symbols that include some face names that
1177 the X support will want to use. This can happen when
1178 CANNOT_DUMP is defined. */
1179 syms_of_keyboard ();
1181 /* Called before syms_of_fileio, because it sets up Qerror_condition. */
1183 syms_of_fns (); /* Before syms_of_charset which uses hashtables. */
1185 /* Before syms_of_coding to initialize Vgc_cons_threshold. */
1187 /* May call Ffuncall and so GC, thus the latter should be initialized. */
1189 /* Before syms_of_coding because it initializes Qcharsetp. */
1191 /* Before init_window_once, because it sets up the
1192 Vcoding_system_hash_table. */
1193 syms_of_coding (); /* This should be after syms_of_fileio. */
1195 init_window_once (); /* Init the window system. */
1196 #ifdef HAVE_WINDOW_SYSTEM
1197 init_fringe_once (); /* Swap bitmaps if necessary. */
1198 #endif /* HAVE_WINDOW_SYSTEM */
1203 if (do_initial_setlocale
)
1206 Vsystem_messages_locale
= Vprevious_system_messages_locale
;
1207 Vsystem_time_locale
= Vprevious_system_time_locale
;
1212 running_asynch_code
= 0;
1216 = argmatch (argv
, argc
, "-nl", "--no-loadup", 6, NULL
, &skip_args
);
1219 = argmatch (argv
, argc
, "-nsl", "--no-site-lisp", 11, NULL
, &skip_args
);
1221 build_details
= ! argmatch (argv
, argc
, "-no-build-details",
1222 "--no-build-details", 7, NULL
, &skip_args
);
1225 ns_pool
= ns_alloc_autorelease_pool ();
1226 #ifdef NS_IMPL_GNUSTEP
1227 /* GNUstep stupidly resets our locale settings after we made them. */
1231 if (!noninteractive
)
1233 #ifdef NS_IMPL_COCOA
1234 /* Started from GUI? */
1235 /* FIXME: Do the right thing if getenv returns NULL, or if
1237 if (! inhibit_window_system
&& ! isatty (STDIN_FILENO
) && ! ch_to_dir
)
1238 chdir (getenv ("HOME"));
1239 if (skip_args
< argc
)
1241 if (!strncmp (argv
[skip_args
], "-psn", 4))
1244 if (! ch_to_dir
) chdir (getenv ("HOME"));
1246 else if (skip_args
+1 < argc
&& !strncmp (argv
[skip_args
+1], "-psn", 4))
1249 if (! ch_to_dir
) chdir (getenv ("HOME"));
1254 #endif /* HAVE_NS */
1256 #ifdef HAVE_X_WINDOWS
1257 /* Stupid kludge to catch command-line display spec. We can't
1258 handle this argument entirely in window system dependent code
1259 because we don't even know which window system dependent code
1260 to run until we've recognized this argument. */
1262 char *displayname
= 0;
1263 int count_before
= skip_args
;
1265 /* Skip any number of -d options, but only use the last one. */
1268 int count_before_this
= skip_args
;
1270 if (argmatch (argv
, argc
, "-d", "--display", 3, &displayname
, &skip_args
))
1272 else if (argmatch (argv
, argc
, "-display", 0, 3, &displayname
, &skip_args
))
1277 count_before
= count_before_this
;
1280 /* If we have the form --display=NAME,
1281 convert it into -d name.
1282 This requires inserting a new element into argv. */
1283 if (displayname
&& count_before
< skip_args
)
1285 if (skip_args
== count_before
+ 1)
1287 memmove (argv
+ count_before
+ 3, argv
+ count_before
+ 2,
1288 (argc
- (count_before
+ 2)) * sizeof *argv
);
1289 argv
[count_before
+ 2] = displayname
;
1292 argv
[count_before
+ 1] = (char *) "-d";
1297 if (argmatch (argv
, argc
, "-Q", "--quick", 3, NULL
, &skip_args
)
1298 || argmatch (argv
, argc
, "-quick", 0, 2, NULL
, &skip_args
))
1302 /* Don't actually discard this arg. */
1303 skip_args
= count_before
;
1305 #else /* !HAVE_X_WINDOWS */
1308 int count_before
= skip_args
;
1310 if (argmatch (argv
, argc
, "-Q", "--quick", 3, NULL
, &skip_args
)
1311 || argmatch (argv
, argc
, "-quick", 0, 2, NULL
, &skip_args
))
1314 skip_args
= count_before
;
1318 /* argmatch must not be used after here,
1319 except when building temacs
1320 because the -d argument has not been skipped in skip_args. */
1323 /* Call early 'cause init_environment needs it. */
1325 /* Set defaults for several environment variables. */
1327 init_environment (argc
, argv
, skip_args
);
1333 globals_of_kqueue ();
1336 #ifdef HAVE_GFILENOTIFY
1337 globals_of_gfilenotify ();
1342 #ifdef HAVE_W32NOTIFY
1343 globals_of_w32notify ();
1345 /* Initialize environment from registry settings. */
1346 init_environment (argv
);
1347 init_ntproc (dumping
); /* must precede init_editfns. */
1351 /* Initialize the locale from user defaults. */
1355 /* Initialize and GC-protect Vinitial_environment and
1356 Vprocess_environment before set_initial_environment fills them
1359 syms_of_callproc ();
1360 /* egetenv is a pretty low-level facility, which may get called in
1361 many circumstances; it seems flimsy to put off initializing it
1362 until calling init_callproc. Do not do it when dumping. */
1364 set_initial_environment ();
1366 /* AIX crashes are reported in system versions 3.2.3 and 3.2.4
1367 if this is not done. Do it after set_global_environment so that we
1368 don't pollute Vglobal_environment. */
1369 /* Setting LANG here will defeat the startup locale processing... */
1374 /* Init buffer storage and default directory of main buffer. */
1375 init_buffer (initialized
);
1377 init_callproc_1 (); /* Must precede init_cmdargs and init_sys_modes. */
1379 /* Must precede init_lread. */
1380 init_cmdargs (argc
, argv
, skip_args
, original_pwd
);
1384 /* Erase any pre-dump messages in the message log, to avoid confusion. */
1385 Lisp_Object old_log_max
;
1386 old_log_max
= Vmessage_log_max
;
1387 XSETFASTINT (Vmessage_log_max
, 0);
1388 message_dolog ("", 0, 1, 0);
1389 Vmessage_log_max
= old_log_max
;
1392 init_callproc (); /* Must follow init_cmdargs but not init_sys_modes. */
1396 /* Check to see if Emacs has been installed correctly. */
1397 check_windows_init_file ();
1400 /* Intern the names of all standard functions and variables;
1401 define standard keys. */
1405 /* The basic levels of Lisp must come first. Note that
1406 syms_of_data and some others have already been called. */
1411 syms_of_floatfns ();
1414 syms_of_bytecode ();
1416 syms_of_casefiddle ();
1418 syms_of_category ();
1420 syms_of_character ();
1427 syms_of_filelock ();
1430 /* syms_of_keymap (); */
1438 syms_of_terminal ();
1449 syms_of_textprop ();
1450 syms_of_composite ();
1453 #endif /* WINDOWSNT */
1460 #ifdef HAVE_WINDOW_SYSTEM
1463 #endif /* HAVE_WINDOW_SYSTEM */
1464 #ifdef HAVE_X_WINDOWS
1470 syms_of_xsettings ();
1477 #endif /* HAVE_X_WINDOWS */
1484 syms_of_decompress ();
1494 #endif /* HAVE_NTGUI */
1496 #if defined WINDOWSNT || defined HAVE_NTGUI
1497 syms_of_w32select ();
1504 syms_of_win16select ();
1511 syms_of_nsselect ();
1513 #endif /* HAVE_NS */
1519 #endif /* HAVE_INOTIFY */
1523 #endif /* HAVE_KQUEUE */
1525 #ifdef HAVE_GFILENOTIFY
1526 syms_of_gfilenotify ();
1527 #endif /* HAVE_GFILENOTIFY */
1530 syms_of_dbusbind ();
1531 #endif /* HAVE_DBUS */
1535 #ifdef HAVE_W32NOTIFY
1536 syms_of_w32notify ();
1537 #endif /* HAVE_W32NOTIFY */
1538 #endif /* WINDOWSNT */
1540 syms_of_profiler ();
1542 keys_of_casefiddle ();
1545 keys_of_keyboard ();
1551 /* Initialization that must be done even if the global variable
1552 initialized is non zero. */
1554 globals_of_w32font ();
1555 globals_of_w32fns ();
1556 globals_of_w32menu ();
1557 #endif /* HAVE_NTGUI */
1559 #if defined WINDOWSNT || defined HAVE_NTGUI
1560 globals_of_w32select ();
1566 /* This calls putenv and so must precede init_process_emacs. Also,
1567 it sets Voperating_system_release, which init_process_emacs uses. */
1568 init_editfns (dumping
);
1570 /* These two call putenv. */
1578 /* This can create a thread that may call getenv, so it must follow
1579 all calls to putenv and setenv. Also, this sets up
1580 add_keyboard_wait_descriptor, which init_display uses. */
1581 init_process_emacs (sockfd
);
1583 init_keyboard (); /* This too must precede init_sys_modes. */
1584 if (!noninteractive
)
1585 init_display (); /* Determine terminal type. Calls init_sys_modes. */
1588 init_crit (); /* w32notify.c needs this in batch mode. */
1589 #endif /* HAVE_W32NOTIFY */
1591 #ifdef HAVE_WINDOW_SYSTEM
1593 #endif /* HAVE_WINDOW_SYSTEM */
1601 /* Handle -l loadup, args passed by Makefile. */
1602 if (argmatch (argv
, argc
, "-l", "--load", 3, &file
, &skip_args
))
1605 char file_utf8
[MAX_UTF8_PATH
];
1607 if (filename_from_ansi (file
, file_utf8
) == 0)
1610 Vtop_level
= list2 (Qload
, build_unibyte_string (file
));
1612 /* Unless next switch is -nl, load "loadup.el" first thing. */
1614 Vtop_level
= list2 (Qload
, build_string ("loadup.el"));
1617 /* Set up for profiling. This is known to work on FreeBSD,
1618 GNU/Linux and MinGW. It might work on some other systems too.
1619 Give it a try and tell us if it works on your system. To compile
1620 for profiling, use the configure option --enable-profiling. */
1621 #if defined (__FreeBSD__) || defined (GNU_LINUX) || defined (__MINGW32__)
1626 extern unsigned char etext
asm ("etext");
1632 monstartup ((uintptr_t) __executable_start
, (uintptr_t) &etext
);
1641 /* Enter editor command loop. This never returns. */
1647 /* Sort the args so we can find the most important ones
1648 at the beginning of argv. */
1650 /* First, here's a table of all the standard options. */
1652 struct standard_args
1655 const char *longname
;
1660 static const struct standard_args standard_args
[] =
1662 { "-version", "--version", 150, 0 },
1663 { "-chdir", "--chdir", 130, 1 },
1664 { "-t", "--terminal", 120, 1 },
1665 { "-nw", "--no-window-system", 110, 0 },
1666 { "-nw", "--no-windows", 110, 0 },
1667 { "-batch", "--batch", 100, 0 },
1668 { "-script", "--script", 100, 1 },
1669 { "-daemon", "--daemon", 99, 0 },
1670 { "-help", "--help", 90, 0 },
1671 { "-nl", "--no-loadup", 70, 0 },
1672 { "-nsl", "--no-site-lisp", 65, 0 },
1673 { "-no-build-details", "--no-build-details", 63, 0 },
1674 /* -d must come last before the options handled in startup.el. */
1675 { "-d", "--display", 60, 1 },
1676 { "-display", 0, 60, 1 },
1677 /* Now for the options handled in `command-line' (startup.el). */
1678 /* (Note that to imply -nsl, -Q is partially handled here.) */
1679 { "-Q", "--quick", 55, 0 },
1680 { "-quick", 0, 55, 0 },
1681 { "-q", "--no-init-file", 50, 0 },
1682 { "-no-init-file", 0, 50, 0 },
1683 { "-no-x-resources", "--no-x-resources", 40, 0 },
1684 { "-no-site-file", "--no-site-file", 40, 0 },
1685 { "-u", "--user", 30, 1 },
1686 { "-user", 0, 30, 1 },
1687 { "-debug-init", "--debug-init", 20, 0 },
1688 { "-iconic", "--iconic", 15, 0 },
1689 { "-D", "--basic-display", 12, 0},
1690 { "-basic-display", 0, 12, 0},
1691 { "-nbc", "--no-blinking-cursor", 12, 0 },
1692 /* Now for the options handled in `command-line-1' (startup.el). */
1693 { "-nbi", "--no-bitmap-icon", 10, 0 },
1694 { "-bg", "--background-color", 10, 1 },
1695 { "-background", 0, 10, 1 },
1696 { "-fg", "--foreground-color", 10, 1 },
1697 { "-foreground", 0, 10, 1 },
1698 { "-bd", "--border-color", 10, 1 },
1699 { "-bw", "--border-width", 10, 1 },
1700 { "-ib", "--internal-border", 10, 1 },
1701 { "-ms", "--mouse-color", 10, 1 },
1702 { "-cr", "--cursor-color", 10, 1 },
1703 { "-fn", "--font", 10, 1 },
1704 { "-font", 0, 10, 1 },
1705 { "-fs", "--fullscreen", 10, 0 },
1706 { "-fw", "--fullwidth", 10, 0 },
1707 { "-fh", "--fullheight", 10, 0 },
1708 { "-mm", "--maximized", 10, 0 },
1709 { "-g", "--geometry", 10, 1 },
1710 { "-geometry", 0, 10, 1 },
1711 { "-T", "--title", 10, 1 },
1712 { "-title", 0, 10, 1 },
1713 { "-name", "--name", 10, 1 },
1714 { "-xrm", "--xrm", 10, 1 },
1715 { "-parent-id", "--parent-id", 10, 1 },
1716 { "-r", "--reverse-video", 5, 0 },
1718 { "-reverse", 0, 5, 0 },
1719 { "-hb", "--horizontal-scroll-bars", 5, 0 },
1720 { "-vb", "--vertical-scroll-bars", 5, 0 },
1721 { "-color", "--color", 5, 0},
1722 { "-no-splash", "--no-splash", 3, 0 },
1723 { "-no-desktop", "--no-desktop", 3, 0 },
1725 { "-NSAutoLaunch", 0, 5, 1 },
1726 { "-NXAutoLaunch", 0, 5, 1 },
1727 { "-_NSMachLaunch", 0, 85, 1 },
1728 { "-MachLaunch", 0, 85, 1 },
1729 { "-macosx", 0, 85, 0 },
1730 { "-NSHost", 0, 85, 1 },
1732 /* These have the same priority as ordinary file name args,
1733 so they are not reordered with respect to those. */
1734 { "-L", "--directory", 0, 1 },
1735 { "-directory", 0, 0, 1 },
1736 { "-l", "--load", 0, 1 },
1737 { "-load", 0, 0, 1 },
1738 /* This has no longname, because using --scriptload confuses sort_args,
1739 because then the --script long option seems to match twice; ie
1740 you can't have a long option which is a prefix of another long
1741 option. In any case, this is entirely an internal option. */
1742 { "-scriptload", NULL
, 0, 1 },
1743 { "-f", "--funcall", 0, 1 },
1744 { "-funcall", 0, 0, 1 },
1745 { "-eval", "--eval", 0, 1 },
1746 { "-execute", "--execute", 0, 1 },
1747 { "-find-file", "--find-file", 0, 1 },
1748 { "-visit", "--visit", 0, 1 },
1749 { "-file", "--file", 0, 1 },
1750 { "-insert", "--insert", 0, 1 },
1752 { "-NXOpen", 0, 0, 1 },
1753 { "-NXOpenTemp", 0, 0, 1 },
1754 { "-NSOpen", 0, 0, 1 },
1755 { "-NSOpenTemp", 0, 0, 1 },
1756 { "-GSFilePath", 0, 0, 1 },
1758 /* This should be processed after ordinary file name args and the like. */
1759 { "-kill", "--kill", -10, 0 },
1762 /* Reorder the elements of ARGV (assumed to have ARGC elements)
1763 so that the highest priority ones come first.
1764 Do not change the order of elements of equal priority.
1765 If an option takes an argument, keep it and its argument together.
1767 If an option that takes no argument appears more
1768 than once, eliminate all but one copy of it. */
1771 sort_args (int argc
, char **argv
)
1773 char **new = xmalloc (argc
* sizeof *new);
1774 /* For each element of argv,
1775 the corresponding element of options is:
1776 0 for an option that takes no arguments,
1777 1 for an option that takes one argument, etc.
1778 -1 for an ordinary non-option argument. */
1779 int *options
= xnmalloc (argc
, sizeof *options
);
1780 int *priority
= xnmalloc (argc
, sizeof *priority
);
1782 int incoming_used
= 1;
1786 /* Categorize all the options,
1787 and figure out which argv elts are option arguments. */
1788 for (from
= 1; from
< argc
; from
++)
1792 if (argv
[from
][0] == '-')
1796 /* If we have found "--", don't consider
1797 any more arguments as options. */
1798 if (argv
[from
][1] == '-' && argv
[from
][2] == 0)
1800 /* Leave the "--", and everything following it, at the end. */
1801 for (; from
< argc
; from
++)
1803 priority
[from
] = -100;
1809 /* Look for a match with a known old-fashioned option. */
1810 for (i
= 0; i
< ARRAYELTS (standard_args
); i
++)
1811 if (!strcmp (argv
[from
], standard_args
[i
].name
))
1813 options
[from
] = standard_args
[i
].nargs
;
1814 priority
[from
] = standard_args
[i
].priority
;
1815 if (from
+ standard_args
[i
].nargs
>= argc
)
1816 fatal ("Option '%s' requires an argument\n", argv
[from
]);
1817 from
+= standard_args
[i
].nargs
;
1821 /* Look for a match with a known long option.
1822 MATCH is -1 if no match so far, -2 if two or more matches so far,
1823 >= 0 (the table index of the match) if just one match so far. */
1824 if (argv
[from
][1] == '-')
1826 char const *equals
= strchr (argv
[from
], '=');
1828 equals
? equals
- argv
[from
] : strlen (argv
[from
]);
1832 for (i
= 0; i
< ARRAYELTS (standard_args
); i
++)
1833 if (standard_args
[i
].longname
1834 && !strncmp (argv
[from
], standard_args
[i
].longname
,
1843 /* If we found exactly one match, use that. */
1846 options
[from
] = standard_args
[match
].nargs
;
1847 priority
[from
] = standard_args
[match
].priority
;
1848 /* If --OPTION=VALUE syntax is used,
1849 this option uses just one argv element. */
1852 if (from
+ options
[from
] >= argc
)
1853 fatal ("Option '%s' requires an argument\n", argv
[from
]);
1854 from
+= options
[from
];
1856 /* FIXME When match < 0, shouldn't there be some error,
1857 or at least indication to the user that there was a
1864 /* Copy the arguments, in order of decreasing priority, to NEW. */
1866 while (incoming_used
< argc
)
1869 int best_priority
= -9999;
1871 /* Find the highest priority remaining option.
1872 If several have equal priority, take the first of them. */
1873 for (from
= 1; from
< argc
; from
++)
1875 if (argv
[from
] != 0 && priority
[from
] > best_priority
)
1877 best_priority
= priority
[from
];
1880 /* Skip option arguments--they are tied to the options. */
1881 if (options
[from
] > 0)
1882 from
+= options
[from
];
1888 /* Copy the highest priority remaining option, with its args, to NEW.
1889 Unless it is a duplicate of the previous one. */
1890 if (! (options
[best
] == 0
1891 && ! strcmp (new[to
- 1], argv
[best
])))
1893 new[to
++] = argv
[best
];
1894 for (i
= 0; i
< options
[best
]; i
++)
1895 new[to
++] = argv
[best
+ i
+ 1];
1898 incoming_used
+= 1 + (options
[best
] > 0 ? options
[best
] : 0);
1900 /* Clear out this option in ARGV. */
1902 for (i
= 0; i
< options
[best
]; i
++)
1903 argv
[best
+ i
+ 1] = 0;
1906 /* If duplicate options were deleted, fill up extra space with null ptrs. */
1910 memcpy (argv
, new, sizeof (char *) * argc
);
1917 DEFUN ("kill-emacs", Fkill_emacs
, Skill_emacs
, 0, 1, "P",
1918 doc
: /* Exit the Emacs job and kill it.
1919 If ARG is an integer, return ARG as the exit program code.
1920 If ARG is a string, stuff it as keyboard input.
1922 This function is called upon receipt of the signals SIGTERM
1923 or SIGHUP, and upon SIGINT in batch mode.
1925 The value of `kill-emacs-hook', if not void,
1926 is a list of functions (of no args),
1927 all of which are called before Emacs is actually killed. */
1928 attributes
: noreturn
)
1933 /* Fsignal calls emacs_abort () if it sees that waiting_for_input is
1935 waiting_for_input
= 0;
1936 run_hook (Qkill_emacs_hook
);
1938 #ifdef HAVE_X_WINDOWS
1939 /* Transfer any clipboards we own to the clipboard manager. */
1940 x_clipboard_manager_save_all ();
1943 shut_down_emacs (0, (STRINGP (arg
) && !feof (stdin
)) ? arg
: Qnil
);
1946 ns_release_autorelease_pool (ns_pool
);
1949 /* If we have an auto-save list file,
1950 kill it because we are exiting Emacs deliberately (not crashing).
1951 Do it after shut_down_emacs, which does an auto-save. */
1952 if (STRINGP (Vauto_save_list_file_name
))
1954 Lisp_Object listfile
;
1955 listfile
= Fexpand_file_name (Vauto_save_list_file_name
, Qnil
);
1956 unlink (SSDATA (listfile
));
1960 exit_code
= (XINT (arg
) < 0
1961 ? XINT (arg
) | INT_MIN
1962 : XINT (arg
) & INT_MAX
);
1964 exit_code
= EXIT_SUCCESS
;
1969 /* Perform an orderly shutdown of Emacs. Autosave any modified
1970 buffers, kill any child processes, clean up the terminal modes (if
1971 we're in the foreground), and other stuff like that. Don't perform
1972 any redisplay; this may be called when Emacs is shutting down in
1973 the background, or after its X connection has died.
1975 If SIG is a signal number, print a message for it.
1977 This is called by fatal signal handlers, X protocol error handlers,
1981 shut_down_emacs (int sig
, Lisp_Object stuff
)
1983 /* Prevent running of hooks from now on. */
1986 /* Don't update display from now on. */
1987 Vinhibit_redisplay
= Qt
;
1989 /* If we are controlling the terminal, reset terminal modes. */
1992 pid_t pgrp
= getpgrp ();
1993 pid_t tpgrp
= tcgetpgrp (0);
1994 if ((tpgrp
!= -1) && tpgrp
== pgrp
)
1996 reset_all_sys_modes ();
1997 if (sig
&& sig
!= SIGTERM
)
1999 static char const format
[] = "Fatal error %d: ";
2000 char buf
[sizeof format
- 2 + INT_STRLEN_BOUND (int)];
2001 int buflen
= sprintf (buf
, format
, sig
);
2002 char const *sig_desc
= safe_strsignal (sig
);
2003 emacs_write (STDERR_FILENO
, buf
, buflen
);
2004 emacs_write (STDERR_FILENO
, sig_desc
, strlen (sig_desc
));
2010 reset_all_sys_modes ();
2013 stuff_buffered_input (stuff
);
2015 inhibit_sentinels
= 1;
2016 kill_buffer_processes (Qnil
);
2017 Fdo_auto_save (Qt
, Qnil
);
2019 unlock_all_files ();
2021 /* There is a tendency for a SIGIO signal to arrive within exit,
2022 and cause a SIGHUP because the input descriptor is already closed. */
2025 /* Do this only if terminating normally, we want glyph matrices
2026 etc. in a core dump. */
2027 if (sig
== 0 || sig
== SIGTERM
)
2029 check_glyph_memory ();
2030 check_message_stack ();
2038 ns_term_shutdown (sig
);
2042 xml_cleanup_parser ();
2056 DEFUN ("dump-emacs", Fdump_emacs
, Sdump_emacs
, 2, 2, 0,
2057 doc
: /* Dump current state of Emacs into executable file FILENAME.
2058 Take symbols from SYMFILE (presumably the file you executed to run Emacs).
2059 This is used in the file `loadup.el' when building Emacs.
2061 You must run Emacs in batch mode in order to dump it. */)
2062 (Lisp_Object filename
, Lisp_Object symfile
)
2066 ptrdiff_t count
= SPECPDL_INDEX ();
2070 if (! noninteractive
)
2071 error ("Dumping Emacs works only in batch mode");
2074 error ("Emacs can be dumped only once");
2078 /* Warn if the gap between BSS end and heap start is larger than this. */
2079 # define MAX_HEAP_BSS_DIFF (1024*1024)
2081 if (heap_bss_diff
> MAX_HEAP_BSS_DIFF
)
2083 fprintf (stderr
, "**************************************************\n");
2084 fprintf (stderr
, "Warning: Your system has a gap between BSS and the\n");
2085 fprintf (stderr
, "heap (%"pMu
" bytes). This usually means that exec-shield\n",
2087 fprintf (stderr
, "or something similar is in effect. The dump may\n");
2088 fprintf (stderr
, "fail because of this. See the section about\n");
2089 fprintf (stderr
, "exec-shield in etc/PROBLEMS for more information.\n");
2090 fprintf (stderr
, "**************************************************\n");
2092 #endif /* GNU_LINUX */
2094 /* Bind `command-line-processed' to nil before dumping,
2095 so that the dumped Emacs will process its command line
2096 and set up to work with X windows if appropriate. */
2097 symbol
= intern ("command-line-processed");
2098 specbind (symbol
, Qnil
);
2100 CHECK_STRING (filename
);
2101 filename
= Fexpand_file_name (filename
, Qnil
);
2102 filename
= ENCODE_FILE (filename
);
2103 if (!NILP (symfile
))
2105 CHECK_STRING (symfile
);
2106 if (SCHARS (symfile
))
2108 symfile
= Fexpand_file_name (symfile
, Qnil
);
2109 symfile
= ENCODE_FILE (symfile
);
2114 Vpurify_flag
= Qnil
;
2116 #ifdef HYBRID_MALLOC
2118 static char const fmt
[] = "%d of %d static heap bytes used";
2119 char buf
[sizeof fmt
+ 2 * (INT_STRLEN_BOUND (int) - 2)];
2120 int max_usage
= max_bss_sbrk_ptr
- bss_sbrk_buffer
;
2121 sprintf (buf
, fmt
, max_usage
, STATIC_HEAP_SIZE
);
2122 /* Don't log messages, because at this point buffers cannot be created. */
2123 message1_nolog (buf
);
2128 /* Tell malloc where start of impure now is. */
2129 /* Also arrange for warnings when nearly out of space. */
2130 #if !defined SYSTEM_MALLOC && !defined HYBRID_MALLOC
2132 /* On Windows, this was done before dumping, and that once suffices.
2133 Meanwhile, my_edata is not valid on Windows. */
2134 memory_warnings (my_edata
, malloc_warning
);
2135 #endif /* not WINDOWSNT */
2136 #endif /* not SYSTEM_MALLOC and not HYBRID_MALLOC */
2138 alloc_unexec_pre ();
2140 unexec (SSDATA (filename
), !NILP (symfile
) ? SSDATA (symfile
) : 0);
2142 alloc_unexec_post ();
2145 Vlibrary_cache
= Qnil
;
2147 #ifdef HAVE_WINDOW_SYSTEM
2148 reset_image_types ();
2153 return unbind_to (count
, Qnil
);
2156 #endif /* not CANNOT_DUMP */
2159 /* Recover from setlocale (LC_ALL, ""). */
2163 /* The Emacs Lisp reader needs LC_NUMERIC to be "C",
2164 so that numbers are read and printed properly for Emacs Lisp. */
2165 setlocale (LC_NUMERIC
, "C");
2168 /* Set system locale CATEGORY, with previous locale *PLOCALE, to
2171 synchronize_locale (int category
, Lisp_Object
*plocale
, Lisp_Object desired_locale
)
2173 if (! EQ (*plocale
, desired_locale
))
2175 *plocale
= desired_locale
;
2177 /* Changing categories like LC_TIME usually requires specifying
2178 an encoding suitable for the new locale, but MS-Windows's
2179 'setlocale' will only switch the encoding when LC_ALL is
2180 specified. So we ignore CATEGORY, use LC_ALL instead, and
2181 then restore LC_NUMERIC to "C", so reading and printing
2182 numbers is unaffected. */
2183 setlocale (LC_ALL
, (STRINGP (desired_locale
)
2184 ? SSDATA (desired_locale
)
2187 #else /* !WINDOWSNT */
2188 setlocale (category
, (STRINGP (desired_locale
)
2189 ? SSDATA (desired_locale
)
2191 #endif /* !WINDOWSNT */
2195 /* Set system time locale to match Vsystem_time_locale, if possible. */
2197 synchronize_system_time_locale (void)
2199 synchronize_locale (LC_TIME
, &Vprevious_system_time_locale
,
2200 Vsystem_time_locale
);
2203 /* Set system messages locale to match Vsystem_messages_locale, if
2206 synchronize_system_messages_locale (void)
2209 synchronize_locale (LC_MESSAGES
, &Vprevious_system_messages_locale
,
2210 Vsystem_messages_locale
);
2213 #endif /* HAVE_SETLOCALE */
2217 decode_env_path (const char *evarname
, const char *defalt
, bool empty
)
2219 const char *path
, *p
;
2220 Lisp_Object lpath
, element
, tem
;
2221 /* Default is to use "." for empty path elements.
2222 But if argument EMPTY is true, use nil instead. */
2223 Lisp_Object empty_element
= empty
? Qnil
: build_string (".");
2226 static const char *emacs_dir_env
= "%emacs_dir%/";
2227 const size_t emacs_dir_len
= strlen (emacs_dir_env
);
2228 const char *edir
= egetenv ("emacs_dir");
2229 char emacs_dir
[MAX_UTF8_PATH
];
2231 /* egetenv looks in process-environment, which holds the variables
2232 in their original system-locale encoding. We need emacs_dir to
2235 filename_from_ansi (edir
, emacs_dir
);
2238 /* It's okay to use getenv here, because this function is only used
2239 to initialize variables when Emacs starts up, and isn't called
2242 path
= getenv (evarname
);
2253 /* Ensure values from the environment use the proper directory separator. */
2259 char *path_utf8
, *q
, *d
;
2262 /* Convert each element of PATH to UTF-8. */
2263 p
= path_copy
= alloca (strlen (path
) + 1);
2264 strcpy (path_copy
, path
);
2265 d
= path_utf8
= alloca (4 * strlen (path
) + 1);
2268 q
= _mbschr (p
, SEPCHAR
);
2271 cnv_result
= filename_from_ansi (p
, d
);
2276 /* If conversion of this PATH elements fails, make sure
2277 destination pointer will stay put, thus effectively
2278 ignoring the offending element. */
2279 if (cnv_result
== 0)
2285 else if (cnv_result
!= 0 && d
> path_utf8
)
2286 d
[-1] = '\0'; /* remove last semi-colon and null-terminate PATH */
2288 path_copy
= path_utf8
;
2290 path_copy
= alloca (strlen (path
) + 1);
2291 strcpy (path_copy
, path
);
2293 dostounix_filename (path_copy
);
2300 p
= strchr (path
, SEPCHAR
);
2302 p
= path
+ strlen (path
);
2303 element
= ((p
- path
) ? make_unibyte_string (path
, p
- path
)
2305 if (! NILP (element
))
2308 /* Relative file names in the default path are interpreted as
2309 being relative to $emacs_dir. */
2310 if (edir
&& defaulted
2311 && strncmp (path
, emacs_dir_env
, emacs_dir_len
) == 0)
2312 element
= Fexpand_file_name (Fsubstring
2314 make_number (emacs_dir_len
),
2316 build_unibyte_string (emacs_dir
));
2319 /* Add /: to the front of the name
2320 if it would otherwise be treated as magic. */
2321 tem
= Ffind_file_name_handler (element
, Qt
);
2323 /* However, if the handler says "I'm safe",
2324 don't bother adding /:. */
2328 prop
= Fget (tem
, intern ("safe-magic"));
2335 AUTO_STRING (slash_colon
, "/:");
2336 element
= concat2 (slash_colon
, element
);
2338 } /* !NILP (element) */
2340 lpath
= Fcons (element
, lpath
);
2346 return Fnreverse (lpath
);
2349 DEFUN ("daemonp", Fdaemonp
, Sdaemonp
, 0, 0, 0,
2350 doc
: /* Return non-nil if the current emacs process is a daemon.
2351 If the daemon was given a name argument, return that name. */)
2356 return build_string (daemon_name
);
2363 DEFUN ("daemon-initialized", Fdaemon_initialized
, Sdaemon_initialized
, 0, 0, 0,
2364 doc
: /* Mark the Emacs daemon as being initialized.
2365 This finishes the daemonization process by doing the other half of detaching
2366 from the parent process and its tty file descriptors. */)
2372 error ("This function can only be called if emacs is run as a daemon");
2374 if (!DAEMON_RUNNING
)
2375 error ("The daemon has already been initialized");
2377 if (NILP (Vafter_init_time
))
2378 error ("This function can only be called after loading the init files");
2382 /* Get rid of stdin, stdout and stderr. */
2383 nfd
= emacs_open ("/dev/null", O_RDWR
, 0);
2385 err
|= dup2 (nfd
, STDIN_FILENO
) < 0;
2386 err
|= dup2 (nfd
, STDOUT_FILENO
) < 0;
2387 err
|= dup2 (nfd
, STDERR_FILENO
) < 0;
2388 err
|= emacs_close (nfd
) != 0;
2390 /* Closing the pipe will notify the parent that it can exit.
2391 FIXME: In case some other process inherited the pipe, closing it here
2392 won't notify the parent because it's still open elsewhere, so we
2393 additionally send a byte, just to make sure the parent really exits.
2394 Instead, we should probably close the pipe in start-process and
2395 call-process to make sure the pipe is never inherited by
2397 err
|= write (daemon_pipe
[1], "\n", 1) < 0;
2398 err
|= emacs_close (daemon_pipe
[1]) != 0;
2399 /* Set it to an invalid value so we know we've already run this function. */
2400 daemon_pipe
[1] = -1;
2401 #else /* WINDOWSNT */
2402 /* Signal the waiting emacsclient process. */
2403 err
|= SetEvent (w32_daemon_event
) == 0;
2404 err
|= CloseHandle (w32_daemon_event
) == 0;
2405 /* Set it to an invalid value so we know we've already run this function. */
2406 w32_daemon_event
= INVALID_HANDLE_VALUE
;
2410 error ("I/O error during daemon initialization");
2415 syms_of_emacs (void)
2417 DEFSYM (Qfile_name_handler_alist
, "file-name-handler-alist");
2418 DEFSYM (Qrisky_local_variable
, "risky-local-variable");
2419 DEFSYM (Qkill_emacs
, "kill-emacs");
2420 DEFSYM (Qkill_emacs_hook
, "kill-emacs-hook");
2423 defsubr (&Sdump_emacs
);
2426 defsubr (&Skill_emacs
);
2428 defsubr (&Sinvocation_name
);
2429 defsubr (&Sinvocation_directory
);
2430 defsubr (&Sdaemonp
);
2431 defsubr (&Sdaemon_initialized
);
2433 DEFVAR_LISP ("command-line-args", Vcommand_line_args
,
2434 doc
: /* Args passed by shell to Emacs, as a list of strings.
2435 Many arguments are deleted from the list as they are processed. */);
2437 DEFVAR_LISP ("system-type", Vsystem_type
,
2438 doc
: /* The value is a symbol indicating the type of operating system you are using.
2440 `gnu' compiled for a GNU Hurd system.
2441 `gnu/linux' compiled for a GNU/Linux system.
2442 `gnu/kfreebsd' compiled for a GNU system with a FreeBSD kernel.
2443 `darwin' compiled for Darwin (GNU-Darwin, Mac OS X, ...).
2444 `ms-dos' compiled as an MS-DOS application.
2445 `windows-nt' compiled as a native W32 application.
2446 `cygwin' compiled using the Cygwin library.
2447 Anything else (in Emacs 26, the possibilities are: aix, berkeley-unix,
2448 hpux, usg-unix-v) indicates some sort of Unix system. */);
2449 Vsystem_type
= intern_c_string (SYSTEM_TYPE
);
2450 /* See configure.ac for the possible SYSTEM_TYPEs. */
2452 DEFVAR_LISP ("system-configuration", Vsystem_configuration
,
2453 doc
: /* Value is string indicating configuration Emacs was built for. */);
2454 Vsystem_configuration
= build_string (EMACS_CONFIGURATION
);
2456 DEFVAR_LISP ("system-configuration-options", Vsystem_configuration_options
,
2457 doc
: /* String containing the configuration options Emacs was built with. */);
2458 Vsystem_configuration_options
= build_string (EMACS_CONFIG_OPTIONS
);
2460 DEFVAR_LISP ("system-configuration-features", Vsystem_configuration_features
,
2461 doc
: /* String listing some of the main features this Emacs was compiled with.
2462 An element of the form \"FOO\" generally means that HAVE_FOO was
2463 defined during the build.
2465 This is mainly intended for diagnostic purposes in bug reports.
2466 Don't rely on it for testing whether a feature you want to use is available. */);
2467 Vsystem_configuration_features
= build_string (EMACS_CONFIG_FEATURES
);
2469 DEFVAR_BOOL ("noninteractive", noninteractive1
,
2470 doc
: /* Non-nil means Emacs is running without interactive terminal. */);
2472 DEFVAR_LISP ("kill-emacs-hook", Vkill_emacs_hook
,
2473 doc
: /* Hook run when `kill-emacs' is called.
2474 Since `kill-emacs' may be invoked when the terminal is disconnected (or
2475 in other similar situations), functions placed on this hook should not
2476 expect to be able to interact with the user. To ask for confirmation,
2477 see `kill-emacs-query-functions' instead.
2479 Before Emacs 24.1, the hook was not run in batch mode, i.e., if
2480 `noninteractive' was non-nil. */);
2481 Vkill_emacs_hook
= Qnil
;
2483 DEFVAR_LISP ("path-separator", Vpath_separator
,
2484 doc
: /* String containing the character that separates directories in
2485 search paths, such as PATH and other similar environment variables. */);
2488 Vpath_separator
= make_string (&c
, 1);
2491 DEFVAR_LISP ("invocation-name", Vinvocation_name
,
2492 doc
: /* The program name that was used to run Emacs.
2493 Any directory names are omitted. */);
2495 DEFVAR_LISP ("invocation-directory", Vinvocation_directory
,
2496 doc
: /* The directory in which the Emacs executable was found, to run it.
2497 The value is nil if that directory's name is not known. */);
2499 DEFVAR_LISP ("installation-directory", Vinstallation_directory
,
2500 doc
: /* A directory within which to look for the `lib-src' and `etc' directories.
2501 In an installed Emacs, this is normally nil. It is non-nil if
2502 both `lib-src' (on MS-DOS, `info') and `etc' directories are found
2503 within the variable `invocation-directory' or its parent. For example,
2504 this is the case when running an uninstalled Emacs executable from its
2505 build directory. */);
2506 Vinstallation_directory
= Qnil
;
2508 DEFVAR_LISP ("system-messages-locale", Vsystem_messages_locale
,
2509 doc
: /* System locale for messages. */);
2510 Vsystem_messages_locale
= Qnil
;
2512 DEFVAR_LISP ("previous-system-messages-locale",
2513 Vprevious_system_messages_locale
,
2514 doc
: /* Most recently used system locale for messages. */);
2515 Vprevious_system_messages_locale
= Qnil
;
2517 DEFVAR_LISP ("system-time-locale", Vsystem_time_locale
,
2518 doc
: /* System locale for time. */);
2519 Vsystem_time_locale
= Qnil
;
2521 DEFVAR_LISP ("previous-system-time-locale", Vprevious_system_time_locale
,
2522 doc
: /* Most recently used system locale for time. */);
2523 Vprevious_system_time_locale
= Qnil
;
2525 DEFVAR_LISP ("before-init-time", Vbefore_init_time
,
2526 doc
: /* Value of `current-time' before Emacs begins initialization. */);
2527 Vbefore_init_time
= Qnil
;
2529 DEFVAR_LISP ("after-init-time", Vafter_init_time
,
2530 doc
: /* Value of `current-time' after loading the init files.
2531 This is nil during initialization. */);
2532 Vafter_init_time
= Qnil
;
2534 DEFVAR_BOOL ("inhibit-x-resources", inhibit_x_resources
,
2535 doc
: /* If non-nil, X resources, Windows Registry settings, and NS defaults are not used. */);
2536 inhibit_x_resources
= 0;
2538 DEFVAR_LISP ("emacs-copyright", Vemacs_copyright
,
2539 doc
: /* Short copyright string for this version of Emacs. */);
2540 Vemacs_copyright
= build_string (emacs_copyright
);
2542 DEFVAR_LISP ("emacs-version", Vemacs_version
,
2543 doc
: /* Version numbers of this version of Emacs. */);
2544 Vemacs_version
= build_string (emacs_version
);
2546 DEFVAR_LISP ("report-emacs-bug-address", Vreport_emacs_bug_address
,
2547 doc
: /* Address of mailing list for GNU Emacs bugs. */);
2548 Vreport_emacs_bug_address
= build_string (emacs_bugreport
);
2550 DEFVAR_LISP ("dynamic-library-alist", Vdynamic_library_alist
,
2551 doc
: /* Alist of dynamic libraries vs external files implementing them.
2552 Each element is a list (LIBRARY FILE...), where the car is a symbol
2553 representing a supported external library, and the rest are strings giving
2554 alternate filenames for that library.
2556 Emacs tries to load the library from the files in the order they appear on
2557 the list; if none is loaded, the running session of Emacs won't have access
2560 Note that image types `pbm' and `xbm' do not need entries in this variable
2561 because they do not depend on external libraries and are always available.
2563 Also note that this is not a generic facility for accessing external
2564 libraries; only those already known by Emacs will be loaded. */);
2565 Vdynamic_library_alist
= Qnil
;
2566 Fput (intern_c_string ("dynamic-library-alist"), Qrisky_local_variable
, Qt
);
2569 Vlibrary_cache
= Qnil
;
2570 staticpro (&Vlibrary_cache
);