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>
62 #endif /* HAVE_LIBSYSTEMD */
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
684 #ifdef HAVE_LIBSYSTEMD
688 /* If we use --chdir, this records the original directory. */
689 char *original_pwd
= 0;
694 might_dump
= !initialized
;
700 char *heap_start
= my_heap_start ();
701 heap_bss_diff
= heap_start
- max (my_endbss
, my_endbss_static
);
705 #if defined WINDOWSNT || defined HAVE_NTGUI
706 /* Set global variables used to detect Windows version. Do this as
707 early as possible. (unexw32.c calls this function as well, but
708 the additional call here is harmless.) */
709 cache_system_info ();
711 /* On Windows 9X, we have to load UNICOWS.DLL as early as possible,
712 to have non-stub implementations of APIs we need to convert file
713 names between UTF-8 and the system's ANSI codepage. */
714 maybe_load_unicows_dll ();
716 /* This has to be done before module_init is called below, so that
717 the latter could use the thread ID of the main thread. */
718 w32_init_main_thread ();
721 #ifdef RUN_TIME_REMAP
723 run_time_remap (argv
[0]);
726 /* If using unexmacosx.c (set by s/darwin.h), we must do this. */
729 unexec_init_emacs_zone ();
732 init_standard_fds ();
733 atexit (close_output_streams
);
739 sort_args (argc
, argv
);
741 while (argv
[argc
]) argc
++;
743 if (argmatch (argv
, argc
, "-version", "--version", 3, NULL
, &skip_args
))
745 const char *version
, *copyright
;
748 Lisp_Object tem
, tem2
;
749 tem
= Fsymbol_value (intern_c_string ("emacs-version"));
750 tem2
= Fsymbol_value (intern_c_string ("emacs-copyright"));
753 fprintf (stderr
, "Invalid value of 'emacs-version'\n");
758 fprintf (stderr
, "Invalid value of 'emacs-copyright'\n");
763 version
= SSDATA (tem
);
764 copyright
= SSDATA (tem2
);
769 version
= emacs_version
;
770 copyright
= emacs_copyright
;
772 printf ("%s %s\n", PACKAGE_NAME
, version
);
773 printf ("%s\n", copyright
);
774 printf ("%s comes with ABSOLUTELY NO WARRANTY.\n", PACKAGE_NAME
);
775 printf ("You may redistribute copies of %s\n", PACKAGE_NAME
);
776 printf ("under the terms of the GNU General Public License.\n");
777 printf ("For more information about these matters, ");
778 printf ("see the file named COPYING.\n");
782 if (argmatch (argv
, argc
, "-chdir", "--chdir", 4, &ch_to_dir
, &skip_args
))
785 /* argv[] array is kept in its original ANSI codepage encoding,
786 we need to convert to UTF-8, for chdir to work. */
787 char newdir
[MAX_UTF8_PATH
];
789 filename_from_ansi (ch_to_dir
, newdir
);
792 original_pwd
= emacs_get_current_dir_name ();
793 if (chdir (ch_to_dir
) != 0)
795 fprintf (stderr
, "%s: Can't chdir to %s: %s\n",
796 argv
[0], ch_to_dir
, strerror (errno
));
801 dumping
= !initialized
&& (strcmp (argv
[argc
- 1], "dump") == 0
802 || strcmp (argv
[argc
- 1], "bootstrap") == 0);
804 #ifdef HAVE_PERSONALITY_LINUX32
805 if (dumping
&& ! getenv ("EMACS_HEAP_EXEC"))
807 /* Set this so we only do this once. */
808 xputenv ("EMACS_HEAP_EXEC=true");
810 /* A flag to turn off address randomization which is introduced
811 in linux kernel shipped with fedora core 4 */
812 #define ADD_NO_RANDOMIZE 0x0040000
813 personality (PER_LINUX32
| ADD_NO_RANDOMIZE
);
814 #undef ADD_NO_RANDOMIZE
816 execvp (argv
[0], argv
);
818 /* If the exec fails, try to dump anyway. */
819 emacs_perror (argv
[0]);
821 #endif /* HAVE_PERSONALITY_LINUX32 */
823 #if defined (HAVE_SETRLIMIT) && defined (RLIMIT_STACK) && !defined (CYGWIN)
824 /* Extend the stack space available. Don't do that if dumping,
825 since some systems (e.g. DJGPP) might define a smaller stack
826 limit at that time. And it's not needed on Cygwin, since emacs
827 is built with an 8MB stack. Moreover, the setrlimit call can
828 cause problems on Cygwin
829 (https://www.cygwin.com/ml/cygwin/2015-07/msg00096.html). */
832 && (!noninteractive
|| initialized
)
834 && !getrlimit (RLIMIT_STACK
, &rlim
))
837 /* Approximate the amount regex.c needs per unit of re_max_failures. */
838 int ratio
= 20 * sizeof (char *);
839 /* Then add 33% to cover the size of the smaller stacks that regex.c
840 successively allocates and discards, on its way to the maximum. */
842 /* Add in some extra to cover
843 what we're likely to use for other reasons. */
844 newlim
= re_max_failures
* ratio
+ 200000;
846 /* NetBSD (at least NetBSD 1.2G and former) has a bug in its
847 stack allocation routine for new process that the allocation
848 fails if stack limit is not on page boundary. So, round up the
849 new limit to page boundary. */
850 newlim
= (newlim
+ getpagesize () - 1) / getpagesize () * getpagesize ();
852 if (newlim
> rlim
.rlim_max
)
854 newlim
= rlim
.rlim_max
;
855 /* Don't let regex.c overflow the stack we have. */
856 re_max_failures
= (newlim
- 200000) / ratio
;
858 if (rlim
.rlim_cur
< newlim
)
859 rlim
.rlim_cur
= newlim
;
861 setrlimit (RLIMIT_STACK
, &rlim
);
863 #endif /* HAVE_SETRLIMIT and RLIMIT_STACK and not CYGWIN */
865 /* Record (approximately) where the stack begins. */
866 stack_bottom
= &stack_bottom_variable
;
870 emacs_backtrace (-1);
872 #if !defined SYSTEM_MALLOC && !defined HYBRID_MALLOC
873 /* Arrange to get warning messages as memory fills up. */
874 memory_warnings (0, malloc_warning
);
876 /* Call malloc at least once, to run malloc_initialize_hook.
877 Also call realloc and free for consistency. */
878 free (realloc (malloc (4), 4));
880 #endif /* not SYSTEM_MALLOC and not HYBRID_MALLOC */
883 SET_BINARY (fileno (stdin
));
885 SET_BINARY (fileno (stdout
));
888 /* Skip initial setlocale if LC_ALL is "C", as it's not needed in that case.
889 The build procedure uses this while dumping, to ensure that the
890 dumped Emacs does not have its system locale tables initialized,
891 as that might cause screwups when the dumped Emacs starts up. */
893 char *lc_all
= getenv ("LC_ALL");
894 do_initial_setlocale
= ! lc_all
|| strcmp (lc_all
, "C");
897 /* Set locale now, so that initial error messages are localized properly.
898 fixup_locale must wait until later, since it builds strings. */
899 if (do_initial_setlocale
)
900 setlocale (LC_ALL
, "");
901 text_quoting_flag
= using_utf8 ();
903 inhibit_window_system
= 0;
905 /* Handle the -t switch, which specifies filename to use as terminal. */
909 if (argmatch (argv
, argc
, "-t", "--terminal", 4, &term
, &skip_args
))
911 emacs_close (STDIN_FILENO
);
912 emacs_close (STDOUT_FILENO
);
913 int result
= emacs_open (term
, O_RDWR
, 0);
914 if (result
!= STDIN_FILENO
915 || (fcntl (STDIN_FILENO
, F_DUPFD_CLOEXEC
, STDOUT_FILENO
)
918 char *errstring
= strerror (errno
);
919 fprintf (stderr
, "%s: %s: %s\n", argv
[0], term
, errstring
);
922 if (! isatty (STDIN_FILENO
))
924 fprintf (stderr
, "%s: %s: not a tty\n", argv
[0], term
);
927 fprintf (stderr
, "Using %s\n", term
);
928 #ifdef HAVE_WINDOW_SYSTEM
929 inhibit_window_system
= true; /* -t => -nw */
936 /* Command line option --no-windows is deprecated and thus not mentioned
937 in the manual and usage information. */
938 if (argmatch (argv
, argc
, "-nw", "--no-window-system", 6, NULL
, &skip_args
)
939 || argmatch (argv
, argc
, "-nw", "--no-windows", 6, NULL
, &skip_args
))
940 inhibit_window_system
= 1;
942 /* Handle the -batch switch, which means don't do interactive display. */
944 if (argmatch (argv
, argc
, "-batch", "--batch", 5, NULL
, &skip_args
))
947 Vundo_outer_limit
= Qnil
;
949 if (argmatch (argv
, argc
, "-script", "--script", 3, &junk
, &skip_args
))
951 noninteractive
= 1; /* Set batch mode. */
952 /* Convert --script to -scriptload, un-skip it, and sort again
953 so that it will be handled in proper sequence. */
954 /* FIXME broken for --script=FILE - is that supposed to work? */
955 argv
[skip_args
- 1] = (char *) "-scriptload";
957 sort_args (argc
, argv
);
960 /* Handle the --help option, which gives a usage message. */
961 if (argmatch (argv
, argc
, "-help", "--help", 3, NULL
, &skip_args
))
964 printf ("Usage: %s [OPTION-OR-FILENAME]...\n", argv
[0]);
965 for (i
= 0; i
< ARRAYELTS (usage_message
); i
++)
966 fputs (usage_message
[i
], stdout
);
971 /* Make sure IS_DAEMON starts up as false. */
974 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 systemd_socket
= sd_listen_fds(1);
1014 if (systemd_socket
> 1)
1015 fprintf (stderr
, "\nWarning: systemd has passed more than one socket to the Emacs process.\n\
1016 Try adding 'Accept=false' in the Emacs socket unit file.\n");
1018 else if (systemd_socket
== 1 &&
1019 sd_is_socket (SD_LISTEN_FDS_START
,
1020 AF_UNSPEC
, SOCK_STREAM
, 1) >= 0)
1021 set_external_socket_descriptor (SD_LISTEN_FDS_START
);
1022 #endif /* HAVE_LIBSYSTEMD */
1024 #ifndef DAEMON_MUST_EXEC
1026 fprintf (stderr
, "\nWarning: due to a long standing Gtk+ bug\nhttp://bugzilla.gnome.org/show_bug.cgi?id=85715\n\
1027 Emacs might crash when run in daemon mode and the X11 connection is unexpectedly lost.\n\
1028 Using an Emacs configured with --with-x-toolkit=lucid does not have this problem.\n");
1029 #endif /* USE_GTK */
1031 #else /* DAEMON_MUST_EXEC */
1032 if (!dname_arg
|| !strchr (dname_arg
, '\n'))
1033 f
= fork (); /* in orig */
1035 f
= 0; /* in exec'd */
1036 #endif /* !DAEMON_MUST_EXEC */
1042 /* Close unused writing end of the pipe. */
1043 emacs_close (daemon_pipe
[1]);
1045 /* Just wait for the child to close its end of the pipe. */
1048 retval
= read (daemon_pipe
[0], &buf
, 1);
1050 while (retval
== -1 && errno
== EINTR
);
1054 fprintf (stderr
, "Error reading status from child\n");
1057 else if (retval
== 0)
1059 fprintf (stderr
, "Error: server did not start correctly\n");
1063 emacs_close (daemon_pipe
[0]);
1068 emacs_perror ("fork");
1069 exit (EXIT_CANCELED
);
1072 #ifdef DAEMON_MUST_EXEC
1074 /* In orig process, forked as child, OR in exec'd. */
1075 if (!dname_arg
|| !strchr (dname_arg
, '\n'))
1076 { /* In orig, child: now exec w/special daemon name. */
1079 snprintf (fdStr
, sizeof fdStr
,
1080 "--daemon=\n%d,%d\n%s", daemon_pipe
[0],
1081 daemon_pipe
[1], dname_arg
? dname_arg
: "");
1083 if (! (0 <= fdStrlen
&& fdStrlen
< sizeof fdStr
))
1085 fprintf (stderr
, "daemon: child name too long\n");
1086 exit (EXIT_CANNOT_INVOKE
);
1089 argv
[skip_args
] = fdStr
;
1091 fcntl (daemon_pipe
[0], F_SETFD
, 0);
1092 fcntl (daemon_pipe
[1], F_SETFD
, 0);
1093 execvp (argv
[0], argv
);
1094 emacs_perror (argv
[0]);
1095 exit (errno
== ENOENT
? EXIT_ENOENT
: EXIT_CANNOT_INVOKE
);
1098 /* In exec'd: parse special dname into pipe and name info. */
1099 if (!dname_arg
|| !strchr (dname_arg
, '\n')
1100 || strlen (dname_arg
) < 1 || strlen (dname_arg
) > 70)
1102 fprintf (stderr
, "emacs daemon: daemon name absent or too long\n");
1103 exit (EXIT_CANNOT_INVOKE
);
1105 dname_arg2
[0] = '\0';
1106 sscanf (dname_arg
, "\n%d,%d\n%s", &(daemon_pipe
[0]), &(daemon_pipe
[1]),
1108 dname_arg
= *dname_arg2
? dname_arg2
: NULL
;
1109 fcntl (daemon_pipe
[1], F_SETFD
, FD_CLOEXEC
);
1111 #endif /* DAEMON_MUST_EXEC */
1113 /* Close unused reading end of the pipe. */
1114 emacs_close (daemon_pipe
[0]);
1117 #elif defined(WINDOWSNT)
1118 /* Indicate that we want daemon mode. */
1119 w32_daemon_event
= CreateEvent (NULL
, TRUE
, FALSE
, W32_DAEMON_EVENT
);
1120 if (w32_daemon_event
== NULL
)
1122 fprintf (stderr
, "Couldn't create MS-Windows event for daemon: %s\n",
1127 fprintf (stderr
, "This platform does not support the -daemon flag.\n");
1131 daemon_name
= xstrdup (dname_arg
);
1134 #if defined HAVE_PTHREAD && !defined SYSTEM_MALLOC \
1135 && !defined DOUG_LEA_MALLOC && !defined HYBRID_MALLOC
1136 # ifndef CANNOT_DUMP
1137 /* Do not make gmalloc thread-safe when creating bootstrap-emacs, as
1138 that causes an infinite recursive loop with FreeBSD. See
1139 Bug#14569. The part of this bug involving Cygwin is no longer
1140 relevant, now that Cygwin defines HYBRID_MALLOC. */
1141 if (!noninteractive
|| initialized
)
1143 malloc_enable_thread ();
1146 init_signals (dumping
);
1148 noninteractive1
= noninteractive
;
1150 /* Perform basic initializations (not merely interning symbols). */
1157 init_charset_once ();
1158 init_coding_once ();
1159 init_syntax_once (); /* Create standard syntax table. */
1160 init_category_once (); /* Create standard category table. */
1161 init_casetab_once (); /* Must be done before init_buffer_once. */
1162 init_buffer_once (); /* Create buffer table and some buffers. */
1163 init_minibuf_once (); /* Create list of minibuffers. */
1164 /* Must precede init_window_once. */
1166 /* Call syms_of_xfaces before init_window_once because that
1167 function creates Vterminal_frame. Termcap frames now use
1168 faces, and the face implementation uses some symbols as
1171 /* XXX syms_of_keyboard uses some symbols in keymap.c. It would
1172 be better to arrange things not to have this dependency. */
1174 /* Call syms_of_keyboard before init_window_once because
1175 keyboard sets up symbols that include some face names that
1176 the X support will want to use. This can happen when
1177 CANNOT_DUMP is defined. */
1178 syms_of_keyboard ();
1180 /* Called before syms_of_fileio, because it sets up Qerror_condition. */
1182 syms_of_fns (); /* Before syms_of_charset which uses hashtables. */
1184 /* Before syms_of_coding to initialize Vgc_cons_threshold. */
1186 /* May call Ffuncall and so GC, thus the latter should be initialized. */
1188 /* Before syms_of_coding because it initializes Qcharsetp. */
1190 /* Before init_window_once, because it sets up the
1191 Vcoding_system_hash_table. */
1192 syms_of_coding (); /* This should be after syms_of_fileio. */
1194 init_window_once (); /* Init the window system. */
1195 #ifdef HAVE_WINDOW_SYSTEM
1196 init_fringe_once (); /* Swap bitmaps if necessary. */
1197 #endif /* HAVE_WINDOW_SYSTEM */
1202 if (do_initial_setlocale
)
1205 Vsystem_messages_locale
= Vprevious_system_messages_locale
;
1206 Vsystem_time_locale
= Vprevious_system_time_locale
;
1211 running_asynch_code
= 0;
1215 = argmatch (argv
, argc
, "-nl", "--no-loadup", 6, NULL
, &skip_args
);
1218 = argmatch (argv
, argc
, "-nsl", "--no-site-lisp", 11, NULL
, &skip_args
);
1220 build_details
= ! argmatch (argv
, argc
, "-no-build-details",
1221 "--no-build-details", 7, NULL
, &skip_args
);
1224 ns_pool
= ns_alloc_autorelease_pool ();
1225 #ifdef NS_IMPL_GNUSTEP
1226 /* GNUstep stupidly resets our locale settings after we made them. */
1230 if (!noninteractive
)
1232 #ifdef NS_IMPL_COCOA
1233 /* Started from GUI? */
1234 /* FIXME: Do the right thing if getenv returns NULL, or if
1236 if (! inhibit_window_system
&& ! isatty (STDIN_FILENO
) && ! ch_to_dir
)
1237 chdir (getenv ("HOME"));
1238 if (skip_args
< argc
)
1240 if (!strncmp (argv
[skip_args
], "-psn", 4))
1243 if (! ch_to_dir
) chdir (getenv ("HOME"));
1245 else if (skip_args
+1 < argc
&& !strncmp (argv
[skip_args
+1], "-psn", 4))
1248 if (! ch_to_dir
) chdir (getenv ("HOME"));
1253 #endif /* HAVE_NS */
1255 #ifdef HAVE_X_WINDOWS
1256 /* Stupid kludge to catch command-line display spec. We can't
1257 handle this argument entirely in window system dependent code
1258 because we don't even know which window system dependent code
1259 to run until we've recognized this argument. */
1261 char *displayname
= 0;
1262 int count_before
= skip_args
;
1264 /* Skip any number of -d options, but only use the last one. */
1267 int count_before_this
= skip_args
;
1269 if (argmatch (argv
, argc
, "-d", "--display", 3, &displayname
, &skip_args
))
1271 else if (argmatch (argv
, argc
, "-display", 0, 3, &displayname
, &skip_args
))
1276 count_before
= count_before_this
;
1279 /* If we have the form --display=NAME,
1280 convert it into -d name.
1281 This requires inserting a new element into argv. */
1282 if (displayname
&& count_before
< skip_args
)
1284 if (skip_args
== count_before
+ 1)
1286 memmove (argv
+ count_before
+ 3, argv
+ count_before
+ 2,
1287 (argc
- (count_before
+ 2)) * sizeof *argv
);
1288 argv
[count_before
+ 2] = displayname
;
1291 argv
[count_before
+ 1] = (char *) "-d";
1296 if (argmatch (argv
, argc
, "-Q", "--quick", 3, NULL
, &skip_args
)
1297 || argmatch (argv
, argc
, "-quick", 0, 2, NULL
, &skip_args
))
1301 /* Don't actually discard this arg. */
1302 skip_args
= count_before
;
1304 #else /* !HAVE_X_WINDOWS */
1307 int count_before
= skip_args
;
1309 if (argmatch (argv
, argc
, "-Q", "--quick", 3, NULL
, &skip_args
)
1310 || argmatch (argv
, argc
, "-quick", 0, 2, NULL
, &skip_args
))
1313 skip_args
= count_before
;
1317 /* argmatch must not be used after here,
1318 except when building temacs
1319 because the -d argument has not been skipped in skip_args. */
1322 /* Call early 'cause init_environment needs it. */
1324 /* Set defaults for several environment variables. */
1326 init_environment (argc
, argv
, skip_args
);
1332 globals_of_kqueue ();
1335 #ifdef HAVE_GFILENOTIFY
1336 globals_of_gfilenotify ();
1341 #ifdef HAVE_W32NOTIFY
1342 globals_of_w32notify ();
1344 /* Initialize environment from registry settings. */
1345 init_environment (argv
);
1346 init_ntproc (dumping
); /* must precede init_editfns. */
1350 /* Initialize the locale from user defaults. */
1354 /* Initialize and GC-protect Vinitial_environment and
1355 Vprocess_environment before set_initial_environment fills them
1358 syms_of_callproc ();
1359 /* egetenv is a pretty low-level facility, which may get called in
1360 many circumstances; it seems flimsy to put off initializing it
1361 until calling init_callproc. Do not do it when dumping. */
1363 set_initial_environment ();
1365 /* AIX crashes are reported in system versions 3.2.3 and 3.2.4
1366 if this is not done. Do it after set_global_environment so that we
1367 don't pollute Vglobal_environment. */
1368 /* Setting LANG here will defeat the startup locale processing... */
1373 /* Init buffer storage and default directory of main buffer. */
1374 init_buffer (initialized
);
1376 init_callproc_1 (); /* Must precede init_cmdargs and init_sys_modes. */
1378 /* Must precede init_lread. */
1379 init_cmdargs (argc
, argv
, skip_args
, original_pwd
);
1383 /* Erase any pre-dump messages in the message log, to avoid confusion. */
1384 Lisp_Object old_log_max
;
1385 old_log_max
= Vmessage_log_max
;
1386 XSETFASTINT (Vmessage_log_max
, 0);
1387 message_dolog ("", 0, 1, 0);
1388 Vmessage_log_max
= old_log_max
;
1391 init_callproc (); /* Must follow init_cmdargs but not init_sys_modes. */
1395 /* Check to see if Emacs has been installed correctly. */
1396 check_windows_init_file ();
1399 /* Intern the names of all standard functions and variables;
1400 define standard keys. */
1404 /* The basic levels of Lisp must come first. Note that
1405 syms_of_data and some others have already been called. */
1410 syms_of_floatfns ();
1413 syms_of_bytecode ();
1415 syms_of_casefiddle ();
1417 syms_of_category ();
1419 syms_of_character ();
1426 syms_of_filelock ();
1429 /* syms_of_keymap (); */
1437 syms_of_terminal ();
1448 syms_of_textprop ();
1449 syms_of_composite ();
1452 #endif /* WINDOWSNT */
1459 #ifdef HAVE_WINDOW_SYSTEM
1462 #endif /* HAVE_WINDOW_SYSTEM */
1463 #ifdef HAVE_X_WINDOWS
1469 syms_of_xsettings ();
1476 #endif /* HAVE_X_WINDOWS */
1483 syms_of_decompress ();
1493 #endif /* HAVE_NTGUI */
1495 #if defined WINDOWSNT || defined HAVE_NTGUI
1496 syms_of_w32select ();
1503 syms_of_win16select ();
1510 syms_of_nsselect ();
1512 #endif /* HAVE_NS */
1518 #endif /* HAVE_INOTIFY */
1522 #endif /* HAVE_KQUEUE */
1524 #ifdef HAVE_GFILENOTIFY
1525 syms_of_gfilenotify ();
1526 #endif /* HAVE_GFILENOTIFY */
1529 syms_of_dbusbind ();
1530 #endif /* HAVE_DBUS */
1534 #ifdef HAVE_W32NOTIFY
1535 syms_of_w32notify ();
1536 #endif /* HAVE_W32NOTIFY */
1537 #endif /* WINDOWSNT */
1539 syms_of_profiler ();
1541 keys_of_casefiddle ();
1544 keys_of_keyboard ();
1550 /* Initialization that must be done even if the global variable
1551 initialized is non zero. */
1553 globals_of_w32font ();
1554 globals_of_w32fns ();
1555 globals_of_w32menu ();
1556 #endif /* HAVE_NTGUI */
1558 #if defined WINDOWSNT || defined HAVE_NTGUI
1559 globals_of_w32select ();
1565 /* This calls putenv and so must precede init_process_emacs. Also,
1566 it sets Voperating_system_release, which init_process_emacs uses. */
1567 init_editfns (dumping
);
1569 /* These two call putenv. */
1577 /* This can create a thread that may call getenv, so it must follow
1578 all calls to putenv and setenv. Also, this sets up
1579 add_keyboard_wait_descriptor, which init_display uses. */
1580 init_process_emacs ();
1582 init_keyboard (); /* This too must precede init_sys_modes. */
1583 if (!noninteractive
)
1584 init_display (); /* Determine terminal type. Calls init_sys_modes. */
1587 init_crit (); /* w32notify.c needs this in batch mode. */
1588 #endif /* HAVE_W32NOTIFY */
1590 #ifdef HAVE_WINDOW_SYSTEM
1592 #endif /* HAVE_WINDOW_SYSTEM */
1600 /* Handle -l loadup, args passed by Makefile. */
1601 if (argmatch (argv
, argc
, "-l", "--load", 3, &file
, &skip_args
))
1604 char file_utf8
[MAX_UTF8_PATH
];
1606 if (filename_from_ansi (file
, file_utf8
) == 0)
1609 Vtop_level
= list2 (Qload
, build_unibyte_string (file
));
1611 /* Unless next switch is -nl, load "loadup.el" first thing. */
1613 Vtop_level
= list2 (Qload
, build_string ("loadup.el"));
1616 /* Set up for profiling. This is known to work on FreeBSD,
1617 GNU/Linux and MinGW. It might work on some other systems too.
1618 Give it a try and tell us if it works on your system. To compile
1619 for profiling, use the configure option --enable-profiling. */
1620 #if defined (__FreeBSD__) || defined (GNU_LINUX) || defined (__MINGW32__)
1625 extern unsigned char etext
asm ("etext");
1631 monstartup ((uintptr_t) __executable_start
, (uintptr_t) &etext
);
1640 /* Enter editor command loop. This never returns. */
1646 /* Sort the args so we can find the most important ones
1647 at the beginning of argv. */
1649 /* First, here's a table of all the standard options. */
1651 struct standard_args
1654 const char *longname
;
1659 static const struct standard_args standard_args
[] =
1661 { "-version", "--version", 150, 0 },
1662 { "-chdir", "--chdir", 130, 1 },
1663 { "-t", "--terminal", 120, 1 },
1664 { "-nw", "--no-window-system", 110, 0 },
1665 { "-nw", "--no-windows", 110, 0 },
1666 { "-batch", "--batch", 100, 0 },
1667 { "-script", "--script", 100, 1 },
1668 { "-daemon", "--daemon", 99, 0 },
1669 { "-help", "--help", 90, 0 },
1670 { "-nl", "--no-loadup", 70, 0 },
1671 { "-nsl", "--no-site-lisp", 65, 0 },
1672 { "-no-build-details", "--no-build-details", 63, 0 },
1673 /* -d must come last before the options handled in startup.el. */
1674 { "-d", "--display", 60, 1 },
1675 { "-display", 0, 60, 1 },
1676 /* Now for the options handled in `command-line' (startup.el). */
1677 /* (Note that to imply -nsl, -Q is partially handled here.) */
1678 { "-Q", "--quick", 55, 0 },
1679 { "-quick", 0, 55, 0 },
1680 { "-q", "--no-init-file", 50, 0 },
1681 { "-no-init-file", 0, 50, 0 },
1682 { "-no-x-resources", "--no-x-resources", 40, 0 },
1683 { "-no-site-file", "--no-site-file", 40, 0 },
1684 { "-u", "--user", 30, 1 },
1685 { "-user", 0, 30, 1 },
1686 { "-debug-init", "--debug-init", 20, 0 },
1687 { "-iconic", "--iconic", 15, 0 },
1688 { "-D", "--basic-display", 12, 0},
1689 { "-basic-display", 0, 12, 0},
1690 { "-nbc", "--no-blinking-cursor", 12, 0 },
1691 /* Now for the options handled in `command-line-1' (startup.el). */
1692 { "-nbi", "--no-bitmap-icon", 10, 0 },
1693 { "-bg", "--background-color", 10, 1 },
1694 { "-background", 0, 10, 1 },
1695 { "-fg", "--foreground-color", 10, 1 },
1696 { "-foreground", 0, 10, 1 },
1697 { "-bd", "--border-color", 10, 1 },
1698 { "-bw", "--border-width", 10, 1 },
1699 { "-ib", "--internal-border", 10, 1 },
1700 { "-ms", "--mouse-color", 10, 1 },
1701 { "-cr", "--cursor-color", 10, 1 },
1702 { "-fn", "--font", 10, 1 },
1703 { "-font", 0, 10, 1 },
1704 { "-fs", "--fullscreen", 10, 0 },
1705 { "-fw", "--fullwidth", 10, 0 },
1706 { "-fh", "--fullheight", 10, 0 },
1707 { "-mm", "--maximized", 10, 0 },
1708 { "-g", "--geometry", 10, 1 },
1709 { "-geometry", 0, 10, 1 },
1710 { "-T", "--title", 10, 1 },
1711 { "-title", 0, 10, 1 },
1712 { "-name", "--name", 10, 1 },
1713 { "-xrm", "--xrm", 10, 1 },
1714 { "-parent-id", "--parent-id", 10, 1 },
1715 { "-r", "--reverse-video", 5, 0 },
1717 { "-reverse", 0, 5, 0 },
1718 { "-hb", "--horizontal-scroll-bars", 5, 0 },
1719 { "-vb", "--vertical-scroll-bars", 5, 0 },
1720 { "-color", "--color", 5, 0},
1721 { "-no-splash", "--no-splash", 3, 0 },
1722 { "-no-desktop", "--no-desktop", 3, 0 },
1724 { "-NSAutoLaunch", 0, 5, 1 },
1725 { "-NXAutoLaunch", 0, 5, 1 },
1726 { "-_NSMachLaunch", 0, 85, 1 },
1727 { "-MachLaunch", 0, 85, 1 },
1728 { "-macosx", 0, 85, 0 },
1729 { "-NSHost", 0, 85, 1 },
1731 /* These have the same priority as ordinary file name args,
1732 so they are not reordered with respect to those. */
1733 { "-L", "--directory", 0, 1 },
1734 { "-directory", 0, 0, 1 },
1735 { "-l", "--load", 0, 1 },
1736 { "-load", 0, 0, 1 },
1737 /* This has no longname, because using --scriptload confuses sort_args,
1738 because then the --script long option seems to match twice; ie
1739 you can't have a long option which is a prefix of another long
1740 option. In any case, this is entirely an internal option. */
1741 { "-scriptload", NULL
, 0, 1 },
1742 { "-f", "--funcall", 0, 1 },
1743 { "-funcall", 0, 0, 1 },
1744 { "-eval", "--eval", 0, 1 },
1745 { "-execute", "--execute", 0, 1 },
1746 { "-find-file", "--find-file", 0, 1 },
1747 { "-visit", "--visit", 0, 1 },
1748 { "-file", "--file", 0, 1 },
1749 { "-insert", "--insert", 0, 1 },
1751 { "-NXOpen", 0, 0, 1 },
1752 { "-NXOpenTemp", 0, 0, 1 },
1753 { "-NSOpen", 0, 0, 1 },
1754 { "-NSOpenTemp", 0, 0, 1 },
1755 { "-GSFilePath", 0, 0, 1 },
1757 /* This should be processed after ordinary file name args and the like. */
1758 { "-kill", "--kill", -10, 0 },
1761 /* Reorder the elements of ARGV (assumed to have ARGC elements)
1762 so that the highest priority ones come first.
1763 Do not change the order of elements of equal priority.
1764 If an option takes an argument, keep it and its argument together.
1766 If an option that takes no argument appears more
1767 than once, eliminate all but one copy of it. */
1770 sort_args (int argc
, char **argv
)
1772 char **new = xmalloc (argc
* sizeof *new);
1773 /* For each element of argv,
1774 the corresponding element of options is:
1775 0 for an option that takes no arguments,
1776 1 for an option that takes one argument, etc.
1777 -1 for an ordinary non-option argument. */
1778 int *options
= xnmalloc (argc
, sizeof *options
);
1779 int *priority
= xnmalloc (argc
, sizeof *priority
);
1781 int incoming_used
= 1;
1785 /* Categorize all the options,
1786 and figure out which argv elts are option arguments. */
1787 for (from
= 1; from
< argc
; from
++)
1791 if (argv
[from
][0] == '-')
1795 /* If we have found "--", don't consider
1796 any more arguments as options. */
1797 if (argv
[from
][1] == '-' && argv
[from
][2] == 0)
1799 /* Leave the "--", and everything following it, at the end. */
1800 for (; from
< argc
; from
++)
1802 priority
[from
] = -100;
1808 /* Look for a match with a known old-fashioned option. */
1809 for (i
= 0; i
< ARRAYELTS (standard_args
); i
++)
1810 if (!strcmp (argv
[from
], standard_args
[i
].name
))
1812 options
[from
] = standard_args
[i
].nargs
;
1813 priority
[from
] = standard_args
[i
].priority
;
1814 if (from
+ standard_args
[i
].nargs
>= argc
)
1815 fatal ("Option '%s' requires an argument\n", argv
[from
]);
1816 from
+= standard_args
[i
].nargs
;
1820 /* Look for a match with a known long option.
1821 MATCH is -1 if no match so far, -2 if two or more matches so far,
1822 >= 0 (the table index of the match) if just one match so far. */
1823 if (argv
[from
][1] == '-')
1825 char const *equals
= strchr (argv
[from
], '=');
1827 equals
? equals
- argv
[from
] : strlen (argv
[from
]);
1831 for (i
= 0; i
< ARRAYELTS (standard_args
); i
++)
1832 if (standard_args
[i
].longname
1833 && !strncmp (argv
[from
], standard_args
[i
].longname
,
1842 /* If we found exactly one match, use that. */
1845 options
[from
] = standard_args
[match
].nargs
;
1846 priority
[from
] = standard_args
[match
].priority
;
1847 /* If --OPTION=VALUE syntax is used,
1848 this option uses just one argv element. */
1851 if (from
+ options
[from
] >= argc
)
1852 fatal ("Option '%s' requires an argument\n", argv
[from
]);
1853 from
+= options
[from
];
1855 /* FIXME When match < 0, shouldn't there be some error,
1856 or at least indication to the user that there was a
1863 /* Copy the arguments, in order of decreasing priority, to NEW. */
1865 while (incoming_used
< argc
)
1868 int best_priority
= -9999;
1870 /* Find the highest priority remaining option.
1871 If several have equal priority, take the first of them. */
1872 for (from
= 1; from
< argc
; from
++)
1874 if (argv
[from
] != 0 && priority
[from
] > best_priority
)
1876 best_priority
= priority
[from
];
1879 /* Skip option arguments--they are tied to the options. */
1880 if (options
[from
] > 0)
1881 from
+= options
[from
];
1887 /* Copy the highest priority remaining option, with its args, to NEW.
1888 Unless it is a duplicate of the previous one. */
1889 if (! (options
[best
] == 0
1890 && ! strcmp (new[to
- 1], argv
[best
])))
1892 new[to
++] = argv
[best
];
1893 for (i
= 0; i
< options
[best
]; i
++)
1894 new[to
++] = argv
[best
+ i
+ 1];
1897 incoming_used
+= 1 + (options
[best
] > 0 ? options
[best
] : 0);
1899 /* Clear out this option in ARGV. */
1901 for (i
= 0; i
< options
[best
]; i
++)
1902 argv
[best
+ i
+ 1] = 0;
1905 /* If duplicate options were deleted, fill up extra space with null ptrs. */
1909 memcpy (argv
, new, sizeof (char *) * argc
);
1916 DEFUN ("kill-emacs", Fkill_emacs
, Skill_emacs
, 0, 1, "P",
1917 doc
: /* Exit the Emacs job and kill it.
1918 If ARG is an integer, return ARG as the exit program code.
1919 If ARG is a string, stuff it as keyboard input.
1921 This function is called upon receipt of the signals SIGTERM
1922 or SIGHUP, and upon SIGINT in batch mode.
1924 The value of `kill-emacs-hook', if not void,
1925 is a list of functions (of no args),
1926 all of which are called before Emacs is actually killed. */
1927 attributes
: noreturn
)
1932 /* Fsignal calls emacs_abort () if it sees that waiting_for_input is
1934 waiting_for_input
= 0;
1935 run_hook (Qkill_emacs_hook
);
1937 #ifdef HAVE_X_WINDOWS
1938 /* Transfer any clipboards we own to the clipboard manager. */
1939 x_clipboard_manager_save_all ();
1942 shut_down_emacs (0, (STRINGP (arg
) && !feof (stdin
)) ? arg
: Qnil
);
1945 ns_release_autorelease_pool (ns_pool
);
1948 /* If we have an auto-save list file,
1949 kill it because we are exiting Emacs deliberately (not crashing).
1950 Do it after shut_down_emacs, which does an auto-save. */
1951 if (STRINGP (Vauto_save_list_file_name
))
1953 Lisp_Object listfile
;
1954 listfile
= Fexpand_file_name (Vauto_save_list_file_name
, Qnil
);
1955 unlink (SSDATA (listfile
));
1959 exit_code
= (XINT (arg
) < 0
1960 ? XINT (arg
) | INT_MIN
1961 : XINT (arg
) & INT_MAX
);
1963 exit_code
= EXIT_SUCCESS
;
1968 /* Perform an orderly shutdown of Emacs. Autosave any modified
1969 buffers, kill any child processes, clean up the terminal modes (if
1970 we're in the foreground), and other stuff like that. Don't perform
1971 any redisplay; this may be called when Emacs is shutting down in
1972 the background, or after its X connection has died.
1974 If SIG is a signal number, print a message for it.
1976 This is called by fatal signal handlers, X protocol error handlers,
1980 shut_down_emacs (int sig
, Lisp_Object stuff
)
1982 /* Prevent running of hooks from now on. */
1985 /* Don't update display from now on. */
1986 Vinhibit_redisplay
= Qt
;
1988 /* If we are controlling the terminal, reset terminal modes. */
1991 pid_t pgrp
= getpgrp ();
1992 pid_t tpgrp
= tcgetpgrp (0);
1993 if ((tpgrp
!= -1) && tpgrp
== pgrp
)
1995 reset_all_sys_modes ();
1996 if (sig
&& sig
!= SIGTERM
)
1998 static char const format
[] = "Fatal error %d: ";
1999 char buf
[sizeof format
- 2 + INT_STRLEN_BOUND (int)];
2000 int buflen
= sprintf (buf
, format
, sig
);
2001 char const *sig_desc
= safe_strsignal (sig
);
2002 emacs_write (STDERR_FILENO
, buf
, buflen
);
2003 emacs_write (STDERR_FILENO
, sig_desc
, strlen (sig_desc
));
2009 reset_all_sys_modes ();
2012 stuff_buffered_input (stuff
);
2014 inhibit_sentinels
= 1;
2015 kill_buffer_processes (Qnil
);
2016 Fdo_auto_save (Qt
, Qnil
);
2018 unlock_all_files ();
2020 /* There is a tendency for a SIGIO signal to arrive within exit,
2021 and cause a SIGHUP because the input descriptor is already closed. */
2024 /* Do this only if terminating normally, we want glyph matrices
2025 etc. in a core dump. */
2026 if (sig
== 0 || sig
== SIGTERM
)
2028 check_glyph_memory ();
2029 check_message_stack ();
2037 ns_term_shutdown (sig
);
2041 xml_cleanup_parser ();
2055 DEFUN ("dump-emacs", Fdump_emacs
, Sdump_emacs
, 2, 2, 0,
2056 doc
: /* Dump current state of Emacs into executable file FILENAME.
2057 Take symbols from SYMFILE (presumably the file you executed to run Emacs).
2058 This is used in the file `loadup.el' when building Emacs.
2060 You must run Emacs in batch mode in order to dump it. */)
2061 (Lisp_Object filename
, Lisp_Object symfile
)
2065 ptrdiff_t count
= SPECPDL_INDEX ();
2069 if (! noninteractive
)
2070 error ("Dumping Emacs works only in batch mode");
2073 error ("Emacs can be dumped only once");
2077 /* Warn if the gap between BSS end and heap start is larger than this. */
2078 # define MAX_HEAP_BSS_DIFF (1024*1024)
2080 if (heap_bss_diff
> MAX_HEAP_BSS_DIFF
)
2082 fprintf (stderr
, "**************************************************\n");
2083 fprintf (stderr
, "Warning: Your system has a gap between BSS and the\n");
2084 fprintf (stderr
, "heap (%"pMu
" bytes). This usually means that exec-shield\n",
2086 fprintf (stderr
, "or something similar is in effect. The dump may\n");
2087 fprintf (stderr
, "fail because of this. See the section about\n");
2088 fprintf (stderr
, "exec-shield in etc/PROBLEMS for more information.\n");
2089 fprintf (stderr
, "**************************************************\n");
2091 #endif /* GNU_LINUX */
2093 /* Bind `command-line-processed' to nil before dumping,
2094 so that the dumped Emacs will process its command line
2095 and set up to work with X windows if appropriate. */
2096 symbol
= intern ("command-line-processed");
2097 specbind (symbol
, Qnil
);
2099 CHECK_STRING (filename
);
2100 filename
= Fexpand_file_name (filename
, Qnil
);
2101 filename
= ENCODE_FILE (filename
);
2102 if (!NILP (symfile
))
2104 CHECK_STRING (symfile
);
2105 if (SCHARS (symfile
))
2107 symfile
= Fexpand_file_name (symfile
, Qnil
);
2108 symfile
= ENCODE_FILE (symfile
);
2113 Vpurify_flag
= Qnil
;
2115 #ifdef HYBRID_MALLOC
2117 static char const fmt
[] = "%d of %d static heap bytes used";
2118 char buf
[sizeof fmt
+ 2 * (INT_STRLEN_BOUND (int) - 2)];
2119 int max_usage
= max_bss_sbrk_ptr
- bss_sbrk_buffer
;
2120 sprintf (buf
, fmt
, max_usage
, STATIC_HEAP_SIZE
);
2121 /* Don't log messages, because at this point buffers cannot be created. */
2122 message1_nolog (buf
);
2127 /* Tell malloc where start of impure now is. */
2128 /* Also arrange for warnings when nearly out of space. */
2129 #if !defined SYSTEM_MALLOC && !defined HYBRID_MALLOC
2131 /* On Windows, this was done before dumping, and that once suffices.
2132 Meanwhile, my_edata is not valid on Windows. */
2133 memory_warnings (my_edata
, malloc_warning
);
2134 #endif /* not WINDOWSNT */
2135 #endif /* not SYSTEM_MALLOC and not HYBRID_MALLOC */
2137 alloc_unexec_pre ();
2139 unexec (SSDATA (filename
), !NILP (symfile
) ? SSDATA (symfile
) : 0);
2141 alloc_unexec_post ();
2144 Vlibrary_cache
= Qnil
;
2146 #ifdef HAVE_WINDOW_SYSTEM
2147 reset_image_types ();
2152 return unbind_to (count
, Qnil
);
2155 #endif /* not CANNOT_DUMP */
2158 /* Recover from setlocale (LC_ALL, ""). */
2162 /* The Emacs Lisp reader needs LC_NUMERIC to be "C",
2163 so that numbers are read and printed properly for Emacs Lisp. */
2164 setlocale (LC_NUMERIC
, "C");
2167 /* Set system locale CATEGORY, with previous locale *PLOCALE, to
2170 synchronize_locale (int category
, Lisp_Object
*plocale
, Lisp_Object desired_locale
)
2172 if (! EQ (*plocale
, desired_locale
))
2174 *plocale
= desired_locale
;
2176 /* Changing categories like LC_TIME usually requires specifying
2177 an encoding suitable for the new locale, but MS-Windows's
2178 'setlocale' will only switch the encoding when LC_ALL is
2179 specified. So we ignore CATEGORY, use LC_ALL instead, and
2180 then restore LC_NUMERIC to "C", so reading and printing
2181 numbers is unaffected. */
2182 setlocale (LC_ALL
, (STRINGP (desired_locale
)
2183 ? SSDATA (desired_locale
)
2186 #else /* !WINDOWSNT */
2187 setlocale (category
, (STRINGP (desired_locale
)
2188 ? SSDATA (desired_locale
)
2190 #endif /* !WINDOWSNT */
2194 /* Set system time locale to match Vsystem_time_locale, if possible. */
2196 synchronize_system_time_locale (void)
2198 synchronize_locale (LC_TIME
, &Vprevious_system_time_locale
,
2199 Vsystem_time_locale
);
2202 /* Set system messages locale to match Vsystem_messages_locale, if
2205 synchronize_system_messages_locale (void)
2208 synchronize_locale (LC_MESSAGES
, &Vprevious_system_messages_locale
,
2209 Vsystem_messages_locale
);
2212 #endif /* HAVE_SETLOCALE */
2216 decode_env_path (const char *evarname
, const char *defalt
, bool empty
)
2218 const char *path
, *p
;
2219 Lisp_Object lpath
, element
, tem
;
2220 /* Default is to use "." for empty path elements.
2221 But if argument EMPTY is true, use nil instead. */
2222 Lisp_Object empty_element
= empty
? Qnil
: build_string (".");
2225 static const char *emacs_dir_env
= "%emacs_dir%/";
2226 const size_t emacs_dir_len
= strlen (emacs_dir_env
);
2227 const char *edir
= egetenv ("emacs_dir");
2228 char emacs_dir
[MAX_UTF8_PATH
];
2230 /* egetenv looks in process-environment, which holds the variables
2231 in their original system-locale encoding. We need emacs_dir to
2234 filename_from_ansi (edir
, emacs_dir
);
2237 /* It's okay to use getenv here, because this function is only used
2238 to initialize variables when Emacs starts up, and isn't called
2241 path
= getenv (evarname
);
2252 /* Ensure values from the environment use the proper directory separator. */
2258 char *path_utf8
, *q
, *d
;
2261 /* Convert each element of PATH to UTF-8. */
2262 p
= path_copy
= alloca (strlen (path
) + 1);
2263 strcpy (path_copy
, path
);
2264 d
= path_utf8
= alloca (4 * strlen (path
) + 1);
2267 q
= _mbschr (p
, SEPCHAR
);
2270 cnv_result
= filename_from_ansi (p
, d
);
2275 /* If conversion of this PATH elements fails, make sure
2276 destination pointer will stay put, thus effectively
2277 ignoring the offending element. */
2278 if (cnv_result
== 0)
2284 else if (cnv_result
!= 0 && d
> path_utf8
)
2285 d
[-1] = '\0'; /* remove last semi-colon and null-terminate PATH */
2287 path_copy
= path_utf8
;
2289 path_copy
= alloca (strlen (path
) + 1);
2290 strcpy (path_copy
, path
);
2292 dostounix_filename (path_copy
);
2299 p
= strchr (path
, SEPCHAR
);
2301 p
= path
+ strlen (path
);
2302 element
= ((p
- path
) ? make_unibyte_string (path
, p
- path
)
2304 if (! NILP (element
))
2307 /* Relative file names in the default path are interpreted as
2308 being relative to $emacs_dir. */
2309 if (edir
&& defaulted
2310 && strncmp (path
, emacs_dir_env
, emacs_dir_len
) == 0)
2311 element
= Fexpand_file_name (Fsubstring
2313 make_number (emacs_dir_len
),
2315 build_unibyte_string (emacs_dir
));
2318 /* Add /: to the front of the name
2319 if it would otherwise be treated as magic. */
2320 tem
= Ffind_file_name_handler (element
, Qt
);
2322 /* However, if the handler says "I'm safe",
2323 don't bother adding /:. */
2327 prop
= Fget (tem
, intern ("safe-magic"));
2334 AUTO_STRING (slash_colon
, "/:");
2335 element
= concat2 (slash_colon
, element
);
2337 } /* !NILP (element) */
2339 lpath
= Fcons (element
, lpath
);
2345 return Fnreverse (lpath
);
2348 DEFUN ("daemonp", Fdaemonp
, Sdaemonp
, 0, 0, 0,
2349 doc
: /* Return non-nil if the current emacs process is a daemon.
2350 If the daemon was given a name argument, return that name. */)
2355 return build_string (daemon_name
);
2362 DEFUN ("daemon-initialized", Fdaemon_initialized
, Sdaemon_initialized
, 0, 0, 0,
2363 doc
: /* Mark the Emacs daemon as being initialized.
2364 This finishes the daemonization process by doing the other half of detaching
2365 from the parent process and its tty file descriptors. */)
2371 error ("This function can only be called if emacs is run as a daemon");
2373 if (!DAEMON_RUNNING
)
2374 error ("The daemon has already been initialized");
2376 if (NILP (Vafter_init_time
))
2377 error ("This function can only be called after loading the init files");
2381 /* Get rid of stdin, stdout and stderr. */
2382 nfd
= emacs_open ("/dev/null", O_RDWR
, 0);
2384 err
|= dup2 (nfd
, STDIN_FILENO
) < 0;
2385 err
|= dup2 (nfd
, STDOUT_FILENO
) < 0;
2386 err
|= dup2 (nfd
, STDERR_FILENO
) < 0;
2387 err
|= emacs_close (nfd
) != 0;
2389 /* Closing the pipe will notify the parent that it can exit.
2390 FIXME: In case some other process inherited the pipe, closing it here
2391 won't notify the parent because it's still open elsewhere, so we
2392 additionally send a byte, just to make sure the parent really exits.
2393 Instead, we should probably close the pipe in start-process and
2394 call-process to make sure the pipe is never inherited by
2396 err
|= write (daemon_pipe
[1], "\n", 1) < 0;
2397 err
|= emacs_close (daemon_pipe
[1]) != 0;
2398 /* Set it to an invalid value so we know we've already run this function. */
2399 daemon_pipe
[1] = -1;
2400 #else /* WINDOWSNT */
2401 /* Signal the waiting emacsclient process. */
2402 err
|= SetEvent (w32_daemon_event
) == 0;
2403 err
|= CloseHandle (w32_daemon_event
) == 0;
2404 /* Set it to an invalid value so we know we've already run this function. */
2405 w32_daemon_event
= INVALID_HANDLE_VALUE
;
2409 error ("I/O error during daemon initialization");
2414 syms_of_emacs (void)
2416 DEFSYM (Qfile_name_handler_alist
, "file-name-handler-alist");
2417 DEFSYM (Qrisky_local_variable
, "risky-local-variable");
2418 DEFSYM (Qkill_emacs
, "kill-emacs");
2419 DEFSYM (Qkill_emacs_hook
, "kill-emacs-hook");
2422 defsubr (&Sdump_emacs
);
2425 defsubr (&Skill_emacs
);
2427 defsubr (&Sinvocation_name
);
2428 defsubr (&Sinvocation_directory
);
2429 defsubr (&Sdaemonp
);
2430 defsubr (&Sdaemon_initialized
);
2432 DEFVAR_LISP ("command-line-args", Vcommand_line_args
,
2433 doc
: /* Args passed by shell to Emacs, as a list of strings.
2434 Many arguments are deleted from the list as they are processed. */);
2436 DEFVAR_LISP ("system-type", Vsystem_type
,
2437 doc
: /* The value is a symbol indicating the type of operating system you are using.
2439 `gnu' compiled for a GNU Hurd system.
2440 `gnu/linux' compiled for a GNU/Linux system.
2441 `gnu/kfreebsd' compiled for a GNU system with a FreeBSD kernel.
2442 `darwin' compiled for Darwin (GNU-Darwin, Mac OS X, ...).
2443 `ms-dos' compiled as an MS-DOS application.
2444 `windows-nt' compiled as a native W32 application.
2445 `cygwin' compiled using the Cygwin library.
2446 Anything else (in Emacs 26, the possibilities are: aix, berkeley-unix,
2447 hpux, usg-unix-v) indicates some sort of Unix system. */);
2448 Vsystem_type
= intern_c_string (SYSTEM_TYPE
);
2449 /* See configure.ac for the possible SYSTEM_TYPEs. */
2451 DEFVAR_LISP ("system-configuration", Vsystem_configuration
,
2452 doc
: /* Value is string indicating configuration Emacs was built for. */);
2453 Vsystem_configuration
= build_string (EMACS_CONFIGURATION
);
2455 DEFVAR_LISP ("system-configuration-options", Vsystem_configuration_options
,
2456 doc
: /* String containing the configuration options Emacs was built with. */);
2457 Vsystem_configuration_options
= build_string (EMACS_CONFIG_OPTIONS
);
2459 DEFVAR_LISP ("system-configuration-features", Vsystem_configuration_features
,
2460 doc
: /* String listing some of the main features this Emacs was compiled with.
2461 An element of the form \"FOO\" generally means that HAVE_FOO was
2462 defined during the build.
2464 This is mainly intended for diagnostic purposes in bug reports.
2465 Don't rely on it for testing whether a feature you want to use is available. */);
2466 Vsystem_configuration_features
= build_string (EMACS_CONFIG_FEATURES
);
2468 DEFVAR_BOOL ("noninteractive", noninteractive1
,
2469 doc
: /* Non-nil means Emacs is running without interactive terminal. */);
2471 DEFVAR_LISP ("kill-emacs-hook", Vkill_emacs_hook
,
2472 doc
: /* Hook run when `kill-emacs' is called.
2473 Since `kill-emacs' may be invoked when the terminal is disconnected (or
2474 in other similar situations), functions placed on this hook should not
2475 expect to be able to interact with the user. To ask for confirmation,
2476 see `kill-emacs-query-functions' instead.
2478 Before Emacs 24.1, the hook was not run in batch mode, i.e., if
2479 `noninteractive' was non-nil. */);
2480 Vkill_emacs_hook
= Qnil
;
2482 DEFVAR_LISP ("path-separator", Vpath_separator
,
2483 doc
: /* String containing the character that separates directories in
2484 search paths, such as PATH and other similar environment variables. */);
2487 Vpath_separator
= make_string (&c
, 1);
2490 DEFVAR_LISP ("invocation-name", Vinvocation_name
,
2491 doc
: /* The program name that was used to run Emacs.
2492 Any directory names are omitted. */);
2494 DEFVAR_LISP ("invocation-directory", Vinvocation_directory
,
2495 doc
: /* The directory in which the Emacs executable was found, to run it.
2496 The value is nil if that directory's name is not known. */);
2498 DEFVAR_LISP ("installation-directory", Vinstallation_directory
,
2499 doc
: /* A directory within which to look for the `lib-src' and `etc' directories.
2500 In an installed Emacs, this is normally nil. It is non-nil if
2501 both `lib-src' (on MS-DOS, `info') and `etc' directories are found
2502 within the variable `invocation-directory' or its parent. For example,
2503 this is the case when running an uninstalled Emacs executable from its
2504 build directory. */);
2505 Vinstallation_directory
= Qnil
;
2507 DEFVAR_LISP ("system-messages-locale", Vsystem_messages_locale
,
2508 doc
: /* System locale for messages. */);
2509 Vsystem_messages_locale
= Qnil
;
2511 DEFVAR_LISP ("previous-system-messages-locale",
2512 Vprevious_system_messages_locale
,
2513 doc
: /* Most recently used system locale for messages. */);
2514 Vprevious_system_messages_locale
= Qnil
;
2516 DEFVAR_LISP ("system-time-locale", Vsystem_time_locale
,
2517 doc
: /* System locale for time. */);
2518 Vsystem_time_locale
= Qnil
;
2520 DEFVAR_LISP ("previous-system-time-locale", Vprevious_system_time_locale
,
2521 doc
: /* Most recently used system locale for time. */);
2522 Vprevious_system_time_locale
= Qnil
;
2524 DEFVAR_LISP ("before-init-time", Vbefore_init_time
,
2525 doc
: /* Value of `current-time' before Emacs begins initialization. */);
2526 Vbefore_init_time
= Qnil
;
2528 DEFVAR_LISP ("after-init-time", Vafter_init_time
,
2529 doc
: /* Value of `current-time' after loading the init files.
2530 This is nil during initialization. */);
2531 Vafter_init_time
= Qnil
;
2533 DEFVAR_BOOL ("inhibit-x-resources", inhibit_x_resources
,
2534 doc
: /* If non-nil, X resources, Windows Registry settings, and NS defaults are not used. */);
2535 inhibit_x_resources
= 0;
2537 DEFVAR_LISP ("emacs-copyright", Vemacs_copyright
,
2538 doc
: /* Short copyright string for this version of Emacs. */);
2539 Vemacs_copyright
= build_string (emacs_copyright
);
2541 DEFVAR_LISP ("emacs-version", Vemacs_version
,
2542 doc
: /* Version numbers of this version of Emacs. */);
2543 Vemacs_version
= build_string (emacs_version
);
2545 DEFVAR_LISP ("report-emacs-bug-address", Vreport_emacs_bug_address
,
2546 doc
: /* Address of mailing list for GNU Emacs bugs. */);
2547 Vreport_emacs_bug_address
= build_string (emacs_bugreport
);
2549 DEFVAR_LISP ("dynamic-library-alist", Vdynamic_library_alist
,
2550 doc
: /* Alist of dynamic libraries vs external files implementing them.
2551 Each element is a list (LIBRARY FILE...), where the car is a symbol
2552 representing a supported external library, and the rest are strings giving
2553 alternate filenames for that library.
2555 Emacs tries to load the library from the files in the order they appear on
2556 the list; if none is loaded, the running session of Emacs won't have access
2559 Note that image types `pbm' and `xbm' do not need entries in this variable
2560 because they do not depend on external libraries and are always available.
2562 Also note that this is not a generic facility for accessing external
2563 libraries; only those already known by Emacs will be loaded. */);
2564 Vdynamic_library_alist
= Qnil
;
2565 Fput (intern_c_string ("dynamic-library-alist"), Qrisky_local_variable
, Qt
);
2568 Vlibrary_cache
= Qnil
;
2569 staticpro (&Vlibrary_cache
);