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
29 #include <sys/types.h>
33 #include <close-stream.h>
40 #include <sys/socket.h>
46 #if defined WINDOWSNT || defined HAVE_NTGUI
47 #include "w32select.h"
49 #include "w32common.h"
57 #include <binary-io.h>
61 #ifdef HAVE_LIBSYSTEMD
62 # include <systemd/sd-daemon.h>
63 # include <sys/socket.h>
66 #ifdef HAVE_WINDOW_SYSTEM
68 #endif /* HAVE_WINDOW_SYSTEM */
70 #include "intervals.h"
71 #include "character.h"
76 #include "blockinput.h"
77 #include "syssignal.h"
80 #include "termhooks.h"
85 #include "composite.h"
86 #include "dispextern.h"
90 #include "sysselect.h"
94 #include "getpagesize.h"
97 #if (defined PROFILING \
98 && (defined __FreeBSD__ || defined GNU_LINUX || defined __MINGW32__))
99 # include <sys/gmon.h>
100 extern void moncontrol (int mode
);
103 #ifdef HAVE_SETLOCALE
111 #ifdef HAVE_SETRLIMIT
112 #include <sys/time.h>
113 #include <sys/resource.h>
116 static const char emacs_version
[] = PACKAGE_VERSION
;
117 static const char emacs_copyright
[] = COPYRIGHT
;
118 static const char emacs_bugreport
[] = PACKAGE_BUGREPORT
;
120 /* Empty lisp strings. To avoid having to build any others. */
121 Lisp_Object empty_unibyte_string
, empty_multibyte_string
;
124 /* Cache for externally loaded libraries. */
125 Lisp_Object Vlibrary_cache
;
128 /* Set after Emacs has started up the first time.
129 Prevents reinitialization of the Lisp world and keymaps
130 on subsequent starts. */
133 /* Set to true if this instance of Emacs might dump. */
134 #ifndef DOUG_LEA_MALLOC
140 extern void unexec_init_emacs_zone (void);
143 /* If true, Emacs should not attempt to use a window-specific code,
144 but instead should use the virtual terminal under which it was started. */
145 bool inhibit_window_system
;
147 /* If true, a filter or a sentinel is running. Tested to save the match
148 data on the first attempt to change it inside asynchronous code. */
149 bool running_asynch_code
;
151 #if defined (HAVE_X_WINDOWS) || defined (HAVE_NS)
152 /* If true, -d was specified, meaning we're using some window system. */
156 /* An address near the bottom of the stack.
157 Tells GC how to save a copy of the stack. */
161 /* The gap between BSS end and heap start as far as we can tell. */
162 static uprintmax_t heap_bss_diff
;
165 /* To run as a daemon under Cocoa or Windows, we must do a fork+exec,
168 On Cocoa, CoreFoundation lib fails in forked process:
169 http://developer.apple.com/ReleaseNotes/
170 CoreFoundation/CoreFoundation.html)
172 On Windows, a Cygwin fork child cannot access the USER subsystem.
174 We mark being in the exec'd process by a daemon name argument of
175 form "--daemon=\nFD0,FD1\nNAME" where FD are the pipe file descriptors,
176 NAME is the original daemon name, if any. */
177 #if defined NS_IMPL_COCOA || (defined HAVE_NTGUI && defined CYGWIN)
178 # define DAEMON_MUST_EXEC
181 /* True means running Emacs without interactive terminal. */
184 /* True means remove site-lisp directories from load-path. */
187 /* True means put details like time stamps into builds. */
190 /* Name for the server started by the daemon.*/
191 static char *daemon_name
;
194 /* Pipe used to send exit notification to the daemon parent at
198 HANDLE w32_daemon_event
;
201 /* Save argv and argc. */
205 static void sort_args (int argc
, char **argv
);
206 static void syms_of_emacs (void);
208 /* C99 needs each string to be at most 4095 characters, and the usage
209 strings below are split to not overflow this limit. */
210 static char const *const usage_message
[] =
213 Run Emacs, the extensible, customizable, self-documenting real-time\n\
214 display editor. The recommended way to start Emacs for normal editing\n\
215 is with no options at all.\n\
217 Run M-x info RET m emacs RET m emacs invocation RET inside Emacs to\n\
218 read the main documentation for these command-line arguments.\n\
220 Initialization options:\n\
224 --batch do not do interactive display; implies -q\n\
225 --chdir DIR change to directory DIR\n\
226 --daemon start a server in the background\n\
227 --debug-init enable Emacs Lisp debugger for init file\n\
228 --display, -d DISPLAY use X server DISPLAY\n\
231 --no-build-details do not add build details such as time stamps\n\
232 --no-desktop do not load a saved desktop\n\
233 --no-init-file, -q load neither ~/.emacs nor default.el\n\
234 --no-loadup, -nl do not load loadup.el into bare Emacs\n\
235 --no-site-file do not load site-start.el\n\
236 --no-x-resources do not load X resources\n\
237 --no-site-lisp, -nsl do not add site-lisp directories to load-path\n\
238 --no-splash do not display a splash screen on startup\n\
239 --no-window-system, -nw do not communicate with X, ignoring $DISPLAY\n\
242 --quick, -Q equivalent to:\n\
243 -q --no-site-file --no-site-lisp --no-splash\n\
245 --script FILE run FILE as an Emacs Lisp script\n\
246 --terminal, -t DEVICE use DEVICE for terminal I/O\n\
247 --user, -u USER load ~USER/.emacs instead of your own\n\
253 FILE visit FILE using find-file\n\
254 +LINE go to line LINE in next FILE\n\
255 +LINE:COLUMN go to line LINE, column COLUMN, in next FILE\n\
256 --directory, -L DIR prepend DIR to load-path (with :DIR, append DIR)\n\
257 --eval EXPR evaluate Emacs Lisp expression EXPR\n\
258 --execute EXPR evaluate Emacs Lisp expression EXPR\n\
261 --file FILE visit FILE using find-file\n\
262 --find-file FILE visit FILE using find-file\n\
263 --funcall, -f FUNC call Emacs Lisp function FUNC with no arguments\n\
264 --insert FILE insert contents of FILE into current buffer\n\
265 --kill exit without asking for confirmation\n\
266 --load, -l FILE load Emacs Lisp FILE using the load function\n\
267 --visit FILE visit FILE using find-file\n\
273 --background-color, -bg COLOR window background color\n\
274 --basic-display, -D disable many display features;\n\
275 used for debugging Emacs\n\
276 --border-color, -bd COLOR main border color\n\
277 --border-width, -bw WIDTH width of main border\n\
280 --color, --color=MODE override color mode for character terminals;\n\
281 MODE defaults to `auto', and\n\
282 can also be `never', `always',\n\
283 or a mode name like `ansi8'\n\
284 --cursor-color, -cr COLOR color of the Emacs cursor indicating point\n\
285 --font, -fn FONT default font; must be fixed-width\n\
286 --foreground-color, -fg COLOR window foreground color\n\
289 --fullheight, -fh make the first frame high as the screen\n\
290 --fullscreen, -fs make the first frame fullscreen\n\
291 --fullwidth, -fw make the first frame wide as the screen\n\
292 --maximized, -mm make the first frame maximized\n\
293 --geometry, -g GEOMETRY window geometry\n\
296 --no-bitmap-icon, -nbi do not use picture of gnu for Emacs icon\n\
297 --iconic start Emacs in iconified state\n\
298 --internal-border, -ib WIDTH width between text and main border\n\
299 --line-spacing, -lsp PIXELS additional space to put between lines\n\
300 --mouse-color, -ms COLOR mouse cursor color in Emacs window\n\
301 --name NAME title for initial Emacs frame\n\
304 --no-blinking-cursor, -nbc disable blinking cursor\n\
305 --reverse-video, -r, -rv switch foreground and background\n\
306 --title, -T TITLE title for initial Emacs frame\n\
307 --vertical-scroll-bars, -vb enable vertical scroll bars\n\
308 --xrm XRESOURCES set additional X resources\n\
309 --parent-id XID set parent window\n\
310 --help display this help and exit\n\
311 --version output version information and exit\n\
315 You can generally also specify long option names with a single -; for\n\
316 example, -batch as well as --batch. You can use any unambiguous\n\
317 abbreviation for a --option.\n\
319 Various environment variables and window system resources also affect\n\
320 the operation of Emacs. See the main documentation.\n\
322 Report bugs to " PACKAGE_BUGREPORT
". First, please see the Bugs\n\
323 section of the Emacs manual or the file BUGS.\n"
327 /* True if handling a fatal error already. */
328 bool fatal_error_in_progress
;
331 /* NS autrelease pool, for memory management. */
332 static void *ns_pool
;
337 setlocale (int cat
, char const *locale
)
343 /* True if the current system locale uses UTF-8 encoding. */
349 mbstate_t mbs
= { 0 };
350 return mbrtowc (&wc
, "\xc4\x80", 2, &mbs
) == 2 && wc
== 0x100;
357 /* Report a fatal error due to signal SIG, output a backtrace of at
358 most BACKTRACE_LIMIT lines, and exit. */
360 terminate_due_to_signal (int sig
, int backtrace_limit
)
362 signal (sig
, SIG_DFL
);
364 if (attempt_orderly_shutdown_on_fatal_signal
)
366 /* If fatal error occurs in code below, avoid infinite recursion. */
367 if (! fatal_error_in_progress
)
369 fatal_error_in_progress
= 1;
371 totally_unblock_input ();
372 if (sig
== SIGTERM
|| sig
== SIGHUP
|| sig
== SIGINT
)
373 Fkill_emacs (make_number (sig
));
375 shut_down_emacs (sig
, Qnil
);
376 emacs_backtrace (backtrace_limit
);
380 /* Signal the same code; this time it will really be fatal.
381 Since we're in a signal handler, the signal is blocked, so we
382 have to unblock it if we want to really receive it. */
386 sigemptyset (&unblocked
);
387 sigaddset (&unblocked
, sig
);
388 pthread_sigmask (SIG_UNBLOCK
, &unblocked
, 0);
394 /* This shouldn't be executed, but it prevents a warning. */
398 /* Code for dealing with Lisp access to the Unix command line. */
401 init_cmdargs (int argc
, char **argv
, int skip_args
, char *original_pwd
)
404 Lisp_Object name
, dir
, handler
;
405 ptrdiff_t count
= SPECPDL_INDEX ();
406 Lisp_Object raw_name
;
407 AUTO_STRING (slash_colon
, "/:");
413 /* Must use argv[0] converted to UTF-8, as it begets many standard
414 file and directory names. */
416 char argv0
[MAX_UTF8_PATH
];
418 if (filename_from_ansi (argv
[0], argv0
) == 0)
419 raw_name
= build_unibyte_string (argv0
);
421 raw_name
= build_unibyte_string (argv
[0]);
424 raw_name
= build_unibyte_string (argv
[0]);
427 /* Add /: to the front of the name
428 if it would otherwise be treated as magic. */
429 handler
= Ffind_file_name_handler (raw_name
, Qt
);
430 if (! NILP (handler
))
431 raw_name
= concat2 (slash_colon
, raw_name
);
433 Vinvocation_name
= Ffile_name_nondirectory (raw_name
);
434 Vinvocation_directory
= Ffile_name_directory (raw_name
);
436 /* If we got no directory in argv[0], search PATH to find where
437 Emacs actually came from. */
438 if (NILP (Vinvocation_directory
))
441 int yes
= openp (Vexec_path
, Vinvocation_name
,
442 Vexec_suffixes
, &found
, make_number (X_OK
), false);
445 /* Add /: to the front of the name
446 if it would otherwise be treated as magic. */
447 handler
= Ffind_file_name_handler (found
, Qt
);
448 if (! NILP (handler
))
449 found
= concat2 (slash_colon
, found
);
450 Vinvocation_directory
= Ffile_name_directory (found
);
454 if (!NILP (Vinvocation_directory
)
455 && NILP (Ffile_name_absolute_p (Vinvocation_directory
)))
456 /* Emacs was started with relative path, like ./emacs.
460 original_pwd
? build_unibyte_string (original_pwd
) : Qnil
;
462 Vinvocation_directory
= Fexpand_file_name (Vinvocation_directory
, odir
);
465 Vinstallation_directory
= Qnil
;
467 if (!NILP (Vinvocation_directory
))
469 dir
= Vinvocation_directory
;
471 /* If we are running from the build directory, set DIR to the
472 src subdirectory of the Emacs tree, like on Posix
474 if (SBYTES (dir
) > sizeof ("/i386/") - 1
475 && 0 == strcmp (SSDATA (dir
) + SBYTES (dir
) - sizeof ("/i386/") + 1,
477 dir
= Fexpand_file_name (build_string ("../.."), dir
);
478 #else /* !WINDOWSNT */
480 name
= Fexpand_file_name (Vinvocation_name
, dir
);
483 Lisp_Object tem
, lib_src_exists
;
484 Lisp_Object etc_exists
, info_exists
;
486 /* See if dir contains subdirs for use by Emacs.
487 Check for the ones that would exist in a build directory,
488 not including lisp and info. */
489 tem
= Fexpand_file_name (build_string ("lib-src"), dir
);
490 lib_src_exists
= Ffile_exists_p (tem
);
493 /* MSDOS installations frequently remove lib-src, but we still
494 must set installation-directory, or else info won't find
495 its files (it uses the value of installation-directory). */
496 tem
= Fexpand_file_name (build_string ("info"), dir
);
497 info_exists
= Ffile_exists_p (tem
);
502 if (!NILP (lib_src_exists
) || !NILP (info_exists
))
504 tem
= Fexpand_file_name (build_string ("etc"), dir
);
505 etc_exists
= Ffile_exists_p (tem
);
506 if (!NILP (etc_exists
))
508 Vinstallation_directory
509 = Ffile_name_as_directory (dir
);
514 /* See if dir's parent contains those subdirs. */
515 tem
= Fexpand_file_name (build_string ("../lib-src"), dir
);
516 lib_src_exists
= Ffile_exists_p (tem
);
520 /* See the MSDOS commentary above. */
521 tem
= Fexpand_file_name (build_string ("../info"), dir
);
522 info_exists
= Ffile_exists_p (tem
);
527 if (!NILP (lib_src_exists
) || !NILP (info_exists
))
529 tem
= Fexpand_file_name (build_string ("../etc"), dir
);
530 etc_exists
= Ffile_exists_p (tem
);
531 if (!NILP (etc_exists
))
533 tem
= Fexpand_file_name (build_string (".."), dir
);
534 Vinstallation_directory
535 = Ffile_name_as_directory (tem
);
540 /* If the Emacs executable is actually a link,
541 next try the dir that the link points into. */
542 tem
= Ffile_symlink_p (name
);
545 name
= Fexpand_file_name (tem
, dir
);
546 dir
= Ffile_name_directory (name
);
553 Vcommand_line_args
= Qnil
;
555 for (i
= argc
- 1; i
>= 0; i
--)
557 if (i
== 0 || i
> skip_args
)
558 /* For the moment, we keep arguments as is in unibyte strings.
559 They are decoded in the function command-line after we know
560 locale-coding-system. */
562 = Fcons (build_unibyte_string (argv
[i
]), Vcommand_line_args
);
565 unbind_to (count
, Qnil
);
568 DEFUN ("invocation-name", Finvocation_name
, Sinvocation_name
, 0, 0, 0,
569 doc
: /* Return the program name that was used to run Emacs.
570 Any directory names are omitted. */)
573 return Fcopy_sequence (Vinvocation_name
);
576 DEFUN ("invocation-directory", Finvocation_directory
, Sinvocation_directory
,
578 doc
: /* Return the directory name in which the Emacs executable was located. */)
581 return Fcopy_sequence (Vinvocation_directory
);
585 /* Test whether the next argument in ARGV matches SSTR or a prefix of
586 LSTR (at least MINLEN characters). If so, then if VALPTR is non-null
587 (the argument is supposed to have a value) store in *VALPTR either
588 the next argument or the portion of this one after the equal sign.
589 ARGV is read starting at position *SKIPPTR; this index is advanced
590 by the number of arguments used.
592 Too bad we can't just use getopt for all of this, but we don't have
593 enough information to do it right. */
596 argmatch (char **argv
, int argc
, const char *sstr
, const char *lstr
,
597 int minlen
, char **valptr
, int *skipptr
)
603 /* Don't access argv[argc]; give up in advance. */
604 if (argc
<= *skipptr
+ 1)
607 arg
= argv
[*skipptr
+1];
610 if (strcmp (arg
, sstr
) == 0)
614 *valptr
= argv
[*skipptr
+2];
621 arglen
= (valptr
!= NULL
&& (p
= strchr (arg
, '=')) != NULL
622 ? p
- arg
: strlen (arg
));
623 if (lstr
== 0 || arglen
< minlen
|| strncmp (arg
, lstr
, arglen
) != 0)
625 else if (valptr
== NULL
)
636 else if (argv
[*skipptr
+2] != NULL
)
638 *valptr
= argv
[*skipptr
+2];
648 /* Close standard output and standard error, reporting any write
649 errors as best we can. This is intended for use with atexit. */
651 close_output_streams (void)
653 if (close_stream (stdout
) != 0)
655 emacs_perror ("Write error to standard output");
656 _exit (EXIT_FAILURE
);
659 if (close_stream (stderr
) != 0)
660 _exit (EXIT_FAILURE
);
665 main (int argc
, char **argv
)
668 char stack_bottom_variable
;
669 bool do_initial_setlocale
;
672 bool no_loadup
= false;
675 #ifdef DAEMON_MUST_EXEC
680 /* If we use --chdir, this records the original directory. */
681 char *original_pwd
= 0;
685 dumping
= !initialized
&& (strcmp (argv
[argc
- 1], "dump") == 0
686 || strcmp (argv
[argc
- 1], "bootstrap") == 0);
688 /* True if address randomization interferes with memory allocation. */
690 bool disable_aslr
= true;
692 bool disable_aslr
= dumping
;
695 if (disable_aslr
&& disable_address_randomization ())
697 /* Set this so the personality will be reverted before execs
699 xputenv ("EMACS_HEAP_EXEC=true");
701 /* Address randomization was enabled, but is now disabled.
702 Re-execute Emacs to get a clean slate. */
703 execvp (argv
[0], argv
);
705 /* If the exec fails, warn and then try anyway. */
710 might_dump
= !initialized
;
716 char *heap_start
= my_heap_start ();
717 heap_bss_diff
= heap_start
- max (my_endbss
, my_endbss_static
);
721 #if defined WINDOWSNT || defined HAVE_NTGUI
722 /* Set global variables used to detect Windows version. Do this as
723 early as possible. (unexw32.c calls this function as well, but
724 the additional call here is harmless.) */
725 cache_system_info ();
727 /* On Windows 9X, we have to load UNICOWS.DLL as early as possible,
728 to have non-stub implementations of APIs we need to convert file
729 names between UTF-8 and the system's ANSI codepage. */
730 maybe_load_unicows_dll ();
732 /* This has to be done before module_init is called below, so that
733 the latter could use the thread ID of the main thread. */
734 w32_init_main_thread ();
737 #ifdef RUN_TIME_REMAP
739 run_time_remap (argv
[0]);
742 /* If using unexmacosx.c (set by s/darwin.h), we must do this. */
745 unexec_init_emacs_zone ();
748 init_standard_fds ();
749 atexit (close_output_streams
);
755 sort_args (argc
, argv
);
757 while (argv
[argc
]) argc
++;
759 if (argmatch (argv
, argc
, "-version", "--version", 3, NULL
, &skip_args
))
761 const char *version
, *copyright
;
764 Lisp_Object tem
, tem2
;
765 tem
= Fsymbol_value (intern_c_string ("emacs-version"));
766 tem2
= Fsymbol_value (intern_c_string ("emacs-copyright"));
769 fprintf (stderr
, "Invalid value of 'emacs-version'\n");
774 fprintf (stderr
, "Invalid value of 'emacs-copyright'\n");
779 version
= SSDATA (tem
);
780 copyright
= SSDATA (tem2
);
785 version
= emacs_version
;
786 copyright
= emacs_copyright
;
788 printf ("%s %s\n", PACKAGE_NAME
, version
);
789 printf ("%s\n", copyright
);
790 printf ("%s comes with ABSOLUTELY NO WARRANTY.\n", PACKAGE_NAME
);
791 printf ("You may redistribute copies of %s\n", PACKAGE_NAME
);
792 printf ("under the terms of the GNU General Public License.\n");
793 printf ("For more information about these matters, ");
794 printf ("see the file named COPYING.\n");
798 if (argmatch (argv
, argc
, "-chdir", "--chdir", 4, &ch_to_dir
, &skip_args
))
801 /* argv[] array is kept in its original ANSI codepage encoding,
802 we need to convert to UTF-8, for chdir to work. */
803 char newdir
[MAX_UTF8_PATH
];
805 filename_from_ansi (ch_to_dir
, newdir
);
808 original_pwd
= emacs_get_current_dir_name ();
809 if (chdir (ch_to_dir
) != 0)
811 fprintf (stderr
, "%s: Can't chdir to %s: %s\n",
812 argv
[0], ch_to_dir
, strerror (errno
));
817 #if defined (HAVE_SETRLIMIT) && defined (RLIMIT_STACK) && !defined (CYGWIN)
818 /* Extend the stack space available. Don't do that if dumping,
819 since some systems (e.g. DJGPP) might define a smaller stack
820 limit at that time. And it's not needed on Cygwin, since emacs
821 is built with an 8MB stack. Moreover, the setrlimit call can
822 cause problems on Cygwin
823 (https://www.cygwin.com/ml/cygwin/2015-07/msg00096.html). */
825 if (getrlimit (RLIMIT_STACK
, &rlim
) == 0
826 && 0 <= rlim
.rlim_cur
&& rlim
.rlim_cur
<= LONG_MAX
)
828 long lim
= rlim
.rlim_cur
;
830 /* Approximate the amount regex.c needs per unit of
831 re_max_failures, then add 33% to cover the size of the
832 smaller stacks that regex.c successively allocates and
833 discards on its way to the maximum. */
834 int ratio
= 20 * sizeof (char *);
837 /* Extra space to cover what we're likely to use for other reasons. */
840 bool try_to_grow_stack
= true;
842 try_to_grow_stack
= !noninteractive
|| initialized
;
845 if (try_to_grow_stack
)
847 long newlim
= re_max_failures
* ratio
+ extra
;
849 /* Round the new limit to a page boundary; this is needed
850 for Darwin kernel 15.4.0 (see Bug#23622) and perhaps
851 other systems. Do not shrink the stack and do not exceed
852 rlim_max. Don't worry about exact values of
853 RLIM_INFINITY etc. since in practice when they are
854 nonnegative they are so large that the code does the
855 right thing anyway. */
856 long pagesize
= getpagesize ();
857 newlim
+= pagesize
- 1;
858 if (0 <= rlim
.rlim_max
&& rlim
.rlim_max
< newlim
)
859 newlim
= rlim
.rlim_max
;
860 newlim
-= newlim
% pagesize
;
862 if (pagesize
<= newlim
- lim
)
864 rlim
.rlim_cur
= newlim
;
865 if (setrlimit (RLIMIT_STACK
, &rlim
) == 0)
870 /* Don't let regex.c overflow the stack. */
871 re_max_failures
= lim
< extra
? 0 : min (lim
- extra
, SIZE_MAX
) / ratio
;
873 #endif /* HAVE_SETRLIMIT and RLIMIT_STACK and not CYGWIN */
875 /* Record (approximately) where the stack begins. */
876 stack_bottom
= &stack_bottom_variable
;
880 emacs_backtrace (-1);
882 #if !defined SYSTEM_MALLOC && !defined HYBRID_MALLOC
883 /* Arrange to get warning messages as memory fills up. */
884 memory_warnings (0, malloc_warning
);
886 /* Call malloc at least once, to run malloc_initialize_hook.
887 Also call realloc and free for consistency. */
888 free (realloc (malloc (4), 4));
890 #endif /* not SYSTEM_MALLOC and not HYBRID_MALLOC */
893 SET_BINARY (fileno (stdin
));
895 SET_BINARY (fileno (stdout
));
898 /* Skip initial setlocale if LC_ALL is "C", as it's not needed in that case.
899 The build procedure uses this while dumping, to ensure that the
900 dumped Emacs does not have its system locale tables initialized,
901 as that might cause screwups when the dumped Emacs starts up. */
903 char *lc_all
= getenv ("LC_ALL");
904 do_initial_setlocale
= ! lc_all
|| strcmp (lc_all
, "C");
907 /* Set locale now, so that initial error messages are localized properly.
908 fixup_locale must wait until later, since it builds strings. */
909 if (do_initial_setlocale
)
910 setlocale (LC_ALL
, "");
911 text_quoting_flag
= using_utf8 ();
913 inhibit_window_system
= 0;
915 /* Handle the -t switch, which specifies filename to use as terminal. */
919 if (argmatch (argv
, argc
, "-t", "--terminal", 4, &term
, &skip_args
))
921 emacs_close (STDIN_FILENO
);
922 emacs_close (STDOUT_FILENO
);
923 int result
= emacs_open (term
, O_RDWR
, 0);
924 if (result
!= STDIN_FILENO
925 || (fcntl (STDIN_FILENO
, F_DUPFD_CLOEXEC
, STDOUT_FILENO
)
928 char *errstring
= strerror (errno
);
929 fprintf (stderr
, "%s: %s: %s\n", argv
[0], term
, errstring
);
932 if (! isatty (STDIN_FILENO
))
934 fprintf (stderr
, "%s: %s: not a tty\n", argv
[0], term
);
937 fprintf (stderr
, "Using %s\n", term
);
938 #ifdef HAVE_WINDOW_SYSTEM
939 inhibit_window_system
= true; /* -t => -nw */
946 /* Command line option --no-windows is deprecated and thus not mentioned
947 in the manual and usage information. */
948 if (argmatch (argv
, argc
, "-nw", "--no-window-system", 6, NULL
, &skip_args
)
949 || argmatch (argv
, argc
, "-nw", "--no-windows", 6, NULL
, &skip_args
))
950 inhibit_window_system
= 1;
952 /* Handle the -batch switch, which means don't do interactive display. */
954 if (argmatch (argv
, argc
, "-batch", "--batch", 5, NULL
, &skip_args
))
957 Vundo_outer_limit
= Qnil
;
959 if (argmatch (argv
, argc
, "-script", "--script", 3, &junk
, &skip_args
))
961 noninteractive
= 1; /* Set batch mode. */
962 /* Convert --script to -scriptload, un-skip it, and sort again
963 so that it will be handled in proper sequence. */
964 /* FIXME broken for --script=FILE - is that supposed to work? */
965 argv
[skip_args
- 1] = (char *) "-scriptload";
967 sort_args (argc
, argv
);
970 /* Handle the --help option, which gives a usage message. */
971 if (argmatch (argv
, argc
, "-help", "--help", 3, NULL
, &skip_args
))
974 printf ("Usage: %s [OPTION-OR-FILENAME]...\n", argv
[0]);
975 for (i
= 0; i
< ARRAYELTS (usage_message
); i
++)
976 fputs (usage_message
[i
], stdout
);
981 /* Make sure IS_DAEMON starts up as false. */
984 w32_daemon_event
= NULL
;
990 if (argmatch (argv
, argc
, "-daemon", "--daemon", 5, NULL
, &skip_args
)
991 || argmatch (argv
, argc
, "-daemon", "--daemon", 5, &dname_arg
, &skip_args
))
996 /* Start as a daemon: fork a new child process which will run the
997 rest of the initialization code, then exit.
999 Detaching a daemon requires the following steps:
1003 - close the tty file-descriptors
1005 We only want to do the last 2 steps once the daemon is ready to
1006 serve requests, i.e. after loading .emacs (initialization).
1007 OTOH initialization may start subprocesses (e.g. ispell) and these
1008 should be run from the proper process (the one that will end up
1009 running as daemon) and with the proper "session id" in order for
1010 them to keep working after detaching, so fork and setsid need to be
1011 performed before initialization.
1013 We want to avoid exiting before the server socket is ready, so
1014 use a pipe for synchronization. The parent waits for the child
1015 to close its end of the pipe (using `daemon-initialized')
1017 if (emacs_pipe (daemon_pipe
) != 0)
1019 fprintf (stderr
, "Cannot pipe!\n");
1023 #ifdef HAVE_LIBSYSTEMD
1024 /* Read the number of sockets passed through by systemd. */
1025 int systemd_socket
= sd_listen_fds (1);
1027 if (systemd_socket
> 1)
1030 "Warning: systemd passed more than one socket to Emacs.\n"
1031 "Try 'Accept=false' in the Emacs socket unit file.\n"));
1032 else if (systemd_socket
== 1
1033 && (0 < sd_is_socket (SD_LISTEN_FDS_START
,
1034 AF_UNSPEC
, SOCK_STREAM
, 1)))
1035 sockfd
= SD_LISTEN_FDS_START
;
1036 #endif /* HAVE_LIBSYSTEMD */
1038 #ifndef DAEMON_MUST_EXEC
1040 fprintf (stderr
, "\nWarning: due to a long standing Gtk+ bug\nhttp://bugzilla.gnome.org/show_bug.cgi?id=85715\n\
1041 Emacs might crash when run in daemon mode and the X11 connection is unexpectedly lost.\n\
1042 Using an Emacs configured with --with-x-toolkit=lucid does not have this problem.\n");
1043 #endif /* USE_GTK */
1045 #else /* DAEMON_MUST_EXEC */
1046 if (!dname_arg
|| !strchr (dname_arg
, '\n'))
1047 f
= fork (); /* in orig */
1049 f
= 0; /* in exec'd */
1050 #endif /* !DAEMON_MUST_EXEC */
1056 /* Close unused writing end of the pipe. */
1057 emacs_close (daemon_pipe
[1]);
1059 /* Just wait for the child to close its end of the pipe. */
1062 retval
= read (daemon_pipe
[0], &buf
, 1);
1064 while (retval
== -1 && errno
== EINTR
);
1068 fprintf (stderr
, "Error reading status from child\n");
1071 else if (retval
== 0)
1073 fprintf (stderr
, "Error: server did not start correctly\n");
1077 emacs_close (daemon_pipe
[0]);
1082 emacs_perror ("fork");
1083 exit (EXIT_CANCELED
);
1086 #ifdef DAEMON_MUST_EXEC
1088 /* In orig process, forked as child, OR in exec'd. */
1089 if (!dname_arg
|| !strchr (dname_arg
, '\n'))
1090 { /* In orig, child: now exec w/special daemon name. */
1093 snprintf (fdStr
, sizeof fdStr
,
1094 "--daemon=\n%d,%d\n%s", daemon_pipe
[0],
1095 daemon_pipe
[1], dname_arg
? dname_arg
: "");
1097 if (! (0 <= fdStrlen
&& fdStrlen
< sizeof fdStr
))
1099 fprintf (stderr
, "daemon: child name too long\n");
1100 exit (EXIT_CANNOT_INVOKE
);
1103 argv
[skip_args
] = fdStr
;
1105 fcntl (daemon_pipe
[0], F_SETFD
, 0);
1106 fcntl (daemon_pipe
[1], F_SETFD
, 0);
1107 execvp (argv
[0], argv
);
1108 emacs_perror (argv
[0]);
1109 exit (errno
== ENOENT
? EXIT_ENOENT
: EXIT_CANNOT_INVOKE
);
1112 /* In exec'd: parse special dname into pipe and name info. */
1113 if (!dname_arg
|| !strchr (dname_arg
, '\n')
1114 || strlen (dname_arg
) < 1 || strlen (dname_arg
) > 70)
1116 fprintf (stderr
, "emacs daemon: daemon name absent or too long\n");
1117 exit (EXIT_CANNOT_INVOKE
);
1119 dname_arg2
[0] = '\0';
1120 sscanf (dname_arg
, "\n%d,%d\n%s", &(daemon_pipe
[0]), &(daemon_pipe
[1]),
1122 dname_arg
= *dname_arg2
? dname_arg2
: NULL
;
1123 fcntl (daemon_pipe
[1], F_SETFD
, FD_CLOEXEC
);
1125 #endif /* DAEMON_MUST_EXEC */
1127 /* Close unused reading end of the pipe. */
1128 emacs_close (daemon_pipe
[0]);
1131 #elif defined(WINDOWSNT)
1132 /* Indicate that we want daemon mode. */
1133 w32_daemon_event
= CreateEvent (NULL
, TRUE
, FALSE
, W32_DAEMON_EVENT
);
1134 if (w32_daemon_event
== NULL
)
1136 fprintf (stderr
, "Couldn't create MS-Windows event for daemon: %s\n",
1141 fprintf (stderr
, "This platform does not support the -daemon flag.\n");
1145 daemon_name
= xstrdup (dname_arg
);
1148 #if defined HAVE_PTHREAD && !defined SYSTEM_MALLOC \
1149 && !defined DOUG_LEA_MALLOC && !defined HYBRID_MALLOC
1150 # ifndef CANNOT_DUMP
1151 /* Do not make gmalloc thread-safe when creating bootstrap-emacs, as
1152 that causes an infinite recursive loop with FreeBSD. See
1153 Bug#14569. The part of this bug involving Cygwin is no longer
1154 relevant, now that Cygwin defines HYBRID_MALLOC. */
1155 if (!noninteractive
|| initialized
)
1157 malloc_enable_thread ();
1160 init_signals (dumping
);
1162 noninteractive1
= noninteractive
;
1164 /* Perform basic initializations (not merely interning symbols). */
1171 init_charset_once ();
1172 init_coding_once ();
1173 init_syntax_once (); /* Create standard syntax table. */
1174 init_category_once (); /* Create standard category table. */
1175 init_casetab_once (); /* Must be done before init_buffer_once. */
1176 init_buffer_once (); /* Create buffer table and some buffers. */
1177 init_minibuf_once (); /* Create list of minibuffers. */
1178 /* Must precede init_window_once. */
1180 /* Call syms_of_xfaces before init_window_once because that
1181 function creates Vterminal_frame. Termcap frames now use
1182 faces, and the face implementation uses some symbols as
1185 /* XXX syms_of_keyboard uses some symbols in keymap.c. It would
1186 be better to arrange things not to have this dependency. */
1188 /* Call syms_of_keyboard before init_window_once because
1189 keyboard sets up symbols that include some face names that
1190 the X support will want to use. This can happen when
1191 CANNOT_DUMP is defined. */
1192 syms_of_keyboard ();
1194 /* Called before syms_of_fileio, because it sets up Qerror_condition. */
1196 syms_of_fns (); /* Before syms_of_charset which uses hashtables. */
1198 /* Before syms_of_coding to initialize Vgc_cons_threshold. */
1200 /* May call Ffuncall and so GC, thus the latter should be initialized. */
1202 /* Before syms_of_coding because it initializes Qcharsetp. */
1204 /* Before init_window_once, because it sets up the
1205 Vcoding_system_hash_table. */
1206 syms_of_coding (); /* This should be after syms_of_fileio. */
1208 init_window_once (); /* Init the window system. */
1209 #ifdef HAVE_WINDOW_SYSTEM
1210 init_fringe_once (); /* Swap bitmaps if necessary. */
1211 #endif /* HAVE_WINDOW_SYSTEM */
1216 if (do_initial_setlocale
)
1219 Vsystem_messages_locale
= Vprevious_system_messages_locale
;
1220 Vsystem_time_locale
= Vprevious_system_time_locale
;
1225 running_asynch_code
= 0;
1229 = argmatch (argv
, argc
, "-nl", "--no-loadup", 6, NULL
, &skip_args
);
1232 = argmatch (argv
, argc
, "-nsl", "--no-site-lisp", 11, NULL
, &skip_args
);
1234 build_details
= ! argmatch (argv
, argc
, "-no-build-details",
1235 "--no-build-details", 7, NULL
, &skip_args
);
1238 ns_pool
= ns_alloc_autorelease_pool ();
1239 #ifdef NS_IMPL_GNUSTEP
1240 /* GNUstep stupidly resets our locale settings after we made them. */
1244 if (!noninteractive
)
1246 #ifdef NS_IMPL_COCOA
1247 /* Started from GUI? */
1248 /* FIXME: Do the right thing if getenv returns NULL, or if
1250 if (! inhibit_window_system
&& ! isatty (STDIN_FILENO
) && ! ch_to_dir
)
1251 chdir (getenv ("HOME"));
1252 if (skip_args
< argc
)
1254 if (!strncmp (argv
[skip_args
], "-psn", 4))
1257 if (! ch_to_dir
) chdir (getenv ("HOME"));
1259 else if (skip_args
+1 < argc
&& !strncmp (argv
[skip_args
+1], "-psn", 4))
1262 if (! ch_to_dir
) chdir (getenv ("HOME"));
1267 #endif /* HAVE_NS */
1269 #ifdef HAVE_X_WINDOWS
1270 /* Stupid kludge to catch command-line display spec. We can't
1271 handle this argument entirely in window system dependent code
1272 because we don't even know which window system dependent code
1273 to run until we've recognized this argument. */
1275 char *displayname
= 0;
1276 int count_before
= skip_args
;
1278 /* Skip any number of -d options, but only use the last one. */
1281 int count_before_this
= skip_args
;
1283 if (argmatch (argv
, argc
, "-d", "--display", 3, &displayname
, &skip_args
))
1285 else if (argmatch (argv
, argc
, "-display", 0, 3, &displayname
, &skip_args
))
1290 count_before
= count_before_this
;
1293 /* If we have the form --display=NAME,
1294 convert it into -d name.
1295 This requires inserting a new element into argv. */
1296 if (displayname
&& count_before
< skip_args
)
1298 if (skip_args
== count_before
+ 1)
1300 memmove (argv
+ count_before
+ 3, argv
+ count_before
+ 2,
1301 (argc
- (count_before
+ 2)) * sizeof *argv
);
1302 argv
[count_before
+ 2] = displayname
;
1305 argv
[count_before
+ 1] = (char *) "-d";
1310 if (argmatch (argv
, argc
, "-Q", "--quick", 3, NULL
, &skip_args
)
1311 || argmatch (argv
, argc
, "-quick", 0, 2, NULL
, &skip_args
))
1315 /* Don't actually discard this arg. */
1316 skip_args
= count_before
;
1318 #else /* !HAVE_X_WINDOWS */
1321 int count_before
= skip_args
;
1323 if (argmatch (argv
, argc
, "-Q", "--quick", 3, NULL
, &skip_args
)
1324 || argmatch (argv
, argc
, "-quick", 0, 2, NULL
, &skip_args
))
1327 skip_args
= count_before
;
1331 /* argmatch must not be used after here,
1332 except when building temacs
1333 because the -d argument has not been skipped in skip_args. */
1336 /* Call early 'cause init_environment needs it. */
1338 /* Set defaults for several environment variables. */
1340 init_environment (argc
, argv
, skip_args
);
1346 globals_of_kqueue ();
1349 #ifdef HAVE_GFILENOTIFY
1350 globals_of_gfilenotify ();
1354 /* Initialize the locale from user defaults. */
1358 /* Initialize and GC-protect Vinitial_environment and
1359 Vprocess_environment before set_initial_environment fills them
1362 syms_of_callproc ();
1363 /* egetenv is a pretty low-level facility, which may get called in
1364 many circumstances; it seems flimsy to put off initializing it
1365 until calling init_callproc. Do not do it when dumping. */
1367 set_initial_environment ();
1371 #ifdef HAVE_W32NOTIFY
1372 globals_of_w32notify ();
1374 /* Initialize environment from registry settings. Make sure to do
1375 this only after calling set_initial_environment so that
1376 Vinitial_environment and Vprocess_environment will contain only
1377 variables from the parent process without modifications from
1379 init_environment (argv
);
1380 init_ntproc (dumping
); /* must precede init_editfns. */
1383 /* AIX crashes are reported in system versions 3.2.3 and 3.2.4
1384 if this is not done. Do it after set_global_environment so that we
1385 don't pollute Vglobal_environment. */
1386 /* Setting LANG here will defeat the startup locale processing... */
1391 /* Init buffer storage and default directory of main buffer. */
1392 init_buffer (initialized
);
1394 init_callproc_1 (); /* Must precede init_cmdargs and init_sys_modes. */
1396 /* Must precede init_lread. */
1397 init_cmdargs (argc
, argv
, skip_args
, original_pwd
);
1401 /* Erase any pre-dump messages in the message log, to avoid confusion. */
1402 Lisp_Object old_log_max
;
1403 old_log_max
= Vmessage_log_max
;
1404 XSETFASTINT (Vmessage_log_max
, 0);
1405 message_dolog ("", 0, 1, 0);
1406 Vmessage_log_max
= old_log_max
;
1409 init_callproc (); /* Must follow init_cmdargs but not init_sys_modes. */
1413 /* Check to see if Emacs has been installed correctly. */
1414 check_windows_init_file ();
1417 /* Intern the names of all standard functions and variables;
1418 define standard keys. */
1422 /* The basic levels of Lisp must come first. Note that
1423 syms_of_data and some others have already been called. */
1428 syms_of_floatfns ();
1431 syms_of_bytecode ();
1433 syms_of_casefiddle ();
1435 syms_of_category ();
1437 syms_of_character ();
1444 syms_of_filelock ();
1447 /* syms_of_keymap (); */
1455 syms_of_terminal ();
1466 syms_of_textprop ();
1467 syms_of_composite ();
1470 #endif /* WINDOWSNT */
1477 #ifdef HAVE_WINDOW_SYSTEM
1480 #endif /* HAVE_WINDOW_SYSTEM */
1481 #ifdef HAVE_X_WINDOWS
1487 syms_of_xsettings ();
1494 #endif /* HAVE_X_WINDOWS */
1501 syms_of_decompress ();
1511 #endif /* HAVE_NTGUI */
1513 #if defined WINDOWSNT || defined HAVE_NTGUI
1514 syms_of_w32select ();
1521 syms_of_win16select ();
1528 syms_of_nsselect ();
1530 #endif /* HAVE_NS */
1536 #endif /* HAVE_INOTIFY */
1540 #endif /* HAVE_KQUEUE */
1542 #ifdef HAVE_GFILENOTIFY
1543 syms_of_gfilenotify ();
1544 #endif /* HAVE_GFILENOTIFY */
1547 syms_of_dbusbind ();
1548 #endif /* HAVE_DBUS */
1552 #ifdef HAVE_W32NOTIFY
1553 syms_of_w32notify ();
1554 #endif /* HAVE_W32NOTIFY */
1555 #endif /* WINDOWSNT */
1557 syms_of_profiler ();
1559 keys_of_casefiddle ();
1562 keys_of_keyboard ();
1568 /* Initialization that must be done even if the global variable
1569 initialized is non zero. */
1571 globals_of_w32font ();
1572 globals_of_w32fns ();
1573 globals_of_w32menu ();
1574 #endif /* HAVE_NTGUI */
1576 #if defined WINDOWSNT || defined HAVE_NTGUI
1577 globals_of_w32select ();
1583 /* This calls putenv and so must precede init_process_emacs. Also,
1584 it sets Voperating_system_release, which init_process_emacs uses. */
1585 init_editfns (dumping
);
1587 /* These two call putenv. */
1595 /* This can create a thread that may call getenv, so it must follow
1596 all calls to putenv and setenv. Also, this sets up
1597 add_keyboard_wait_descriptor, which init_display uses. */
1598 init_process_emacs (sockfd
);
1600 init_keyboard (); /* This too must precede init_sys_modes. */
1601 if (!noninteractive
)
1602 init_display (); /* Determine terminal type. Calls init_sys_modes. */
1605 init_crit (); /* w32notify.c needs this in batch mode. */
1606 #endif /* HAVE_W32NOTIFY */
1608 #ifdef HAVE_WINDOW_SYSTEM
1610 #endif /* HAVE_WINDOW_SYSTEM */
1618 /* Handle -l loadup, args passed by Makefile. */
1619 if (argmatch (argv
, argc
, "-l", "--load", 3, &file
, &skip_args
))
1622 char file_utf8
[MAX_UTF8_PATH
];
1624 if (filename_from_ansi (file
, file_utf8
) == 0)
1627 Vtop_level
= list2 (Qload
, build_unibyte_string (file
));
1629 /* Unless next switch is -nl, load "loadup.el" first thing. */
1631 Vtop_level
= list2 (Qload
, build_string ("loadup.el"));
1634 /* Set up for profiling. This is known to work on FreeBSD,
1635 GNU/Linux and MinGW. It might work on some other systems too.
1636 Give it a try and tell us if it works on your system. To compile
1637 for profiling, use the configure option --enable-profiling. */
1638 #if defined (__FreeBSD__) || defined (GNU_LINUX) || defined (__MINGW32__)
1643 extern unsigned char etext
asm ("etext");
1649 monstartup ((uintptr_t) __executable_start
, (uintptr_t) &etext
);
1658 /* Enter editor command loop. This never returns. */
1664 /* Sort the args so we can find the most important ones
1665 at the beginning of argv. */
1667 /* First, here's a table of all the standard options. */
1669 struct standard_args
1672 const char *longname
;
1677 static const struct standard_args standard_args
[] =
1679 { "-version", "--version", 150, 0 },
1680 { "-chdir", "--chdir", 130, 1 },
1681 { "-t", "--terminal", 120, 1 },
1682 { "-nw", "--no-window-system", 110, 0 },
1683 { "-nw", "--no-windows", 110, 0 },
1684 { "-batch", "--batch", 100, 0 },
1685 { "-script", "--script", 100, 1 },
1686 { "-daemon", "--daemon", 99, 0 },
1687 { "-help", "--help", 90, 0 },
1688 { "-nl", "--no-loadup", 70, 0 },
1689 { "-nsl", "--no-site-lisp", 65, 0 },
1690 { "-no-build-details", "--no-build-details", 63, 0 },
1691 /* -d must come last before the options handled in startup.el. */
1692 { "-d", "--display", 60, 1 },
1693 { "-display", 0, 60, 1 },
1694 /* Now for the options handled in `command-line' (startup.el). */
1695 /* (Note that to imply -nsl, -Q is partially handled here.) */
1696 { "-Q", "--quick", 55, 0 },
1697 { "-quick", 0, 55, 0 },
1698 { "-q", "--no-init-file", 50, 0 },
1699 { "-no-init-file", 0, 50, 0 },
1700 { "-no-x-resources", "--no-x-resources", 40, 0 },
1701 { "-no-site-file", "--no-site-file", 40, 0 },
1702 { "-u", "--user", 30, 1 },
1703 { "-user", 0, 30, 1 },
1704 { "-debug-init", "--debug-init", 20, 0 },
1705 { "-iconic", "--iconic", 15, 0 },
1706 { "-D", "--basic-display", 12, 0},
1707 { "-basic-display", 0, 12, 0},
1708 { "-nbc", "--no-blinking-cursor", 12, 0 },
1709 /* Now for the options handled in `command-line-1' (startup.el). */
1710 { "-nbi", "--no-bitmap-icon", 10, 0 },
1711 { "-bg", "--background-color", 10, 1 },
1712 { "-background", 0, 10, 1 },
1713 { "-fg", "--foreground-color", 10, 1 },
1714 { "-foreground", 0, 10, 1 },
1715 { "-bd", "--border-color", 10, 1 },
1716 { "-bw", "--border-width", 10, 1 },
1717 { "-ib", "--internal-border", 10, 1 },
1718 { "-ms", "--mouse-color", 10, 1 },
1719 { "-cr", "--cursor-color", 10, 1 },
1720 { "-fn", "--font", 10, 1 },
1721 { "-font", 0, 10, 1 },
1722 { "-fs", "--fullscreen", 10, 0 },
1723 { "-fw", "--fullwidth", 10, 0 },
1724 { "-fh", "--fullheight", 10, 0 },
1725 { "-mm", "--maximized", 10, 0 },
1726 { "-g", "--geometry", 10, 1 },
1727 { "-geometry", 0, 10, 1 },
1728 { "-T", "--title", 10, 1 },
1729 { "-title", 0, 10, 1 },
1730 { "-name", "--name", 10, 1 },
1731 { "-xrm", "--xrm", 10, 1 },
1732 { "-parent-id", "--parent-id", 10, 1 },
1733 { "-r", "--reverse-video", 5, 0 },
1735 { "-reverse", 0, 5, 0 },
1736 { "-hb", "--horizontal-scroll-bars", 5, 0 },
1737 { "-vb", "--vertical-scroll-bars", 5, 0 },
1738 { "-color", "--color", 5, 0},
1739 { "-no-splash", "--no-splash", 3, 0 },
1740 { "-no-desktop", "--no-desktop", 3, 0 },
1742 { "-NSAutoLaunch", 0, 5, 1 },
1743 { "-NXAutoLaunch", 0, 5, 1 },
1744 { "-_NSMachLaunch", 0, 85, 1 },
1745 { "-MachLaunch", 0, 85, 1 },
1746 { "-macosx", 0, 85, 0 },
1747 { "-NSHost", 0, 85, 1 },
1749 /* These have the same priority as ordinary file name args,
1750 so they are not reordered with respect to those. */
1751 { "-L", "--directory", 0, 1 },
1752 { "-directory", 0, 0, 1 },
1753 { "-l", "--load", 0, 1 },
1754 { "-load", 0, 0, 1 },
1755 /* This has no longname, because using --scriptload confuses sort_args,
1756 because then the --script long option seems to match twice; ie
1757 you can't have a long option which is a prefix of another long
1758 option. In any case, this is entirely an internal option. */
1759 { "-scriptload", NULL
, 0, 1 },
1760 { "-f", "--funcall", 0, 1 },
1761 { "-funcall", 0, 0, 1 },
1762 { "-eval", "--eval", 0, 1 },
1763 { "-execute", "--execute", 0, 1 },
1764 { "-find-file", "--find-file", 0, 1 },
1765 { "-visit", "--visit", 0, 1 },
1766 { "-file", "--file", 0, 1 },
1767 { "-insert", "--insert", 0, 1 },
1769 { "-NXOpen", 0, 0, 1 },
1770 { "-NXOpenTemp", 0, 0, 1 },
1771 { "-NSOpen", 0, 0, 1 },
1772 { "-NSOpenTemp", 0, 0, 1 },
1773 { "-GSFilePath", 0, 0, 1 },
1775 /* This should be processed after ordinary file name args and the like. */
1776 { "-kill", "--kill", -10, 0 },
1779 /* Reorder the elements of ARGV (assumed to have ARGC elements)
1780 so that the highest priority ones come first.
1781 Do not change the order of elements of equal priority.
1782 If an option takes an argument, keep it and its argument together.
1784 If an option that takes no argument appears more
1785 than once, eliminate all but one copy of it. */
1788 sort_args (int argc
, char **argv
)
1790 char **new = xmalloc (argc
* sizeof *new);
1791 /* For each element of argv,
1792 the corresponding element of options is:
1793 0 for an option that takes no arguments,
1794 1 for an option that takes one argument, etc.
1795 -1 for an ordinary non-option argument. */
1796 int *options
= xnmalloc (argc
, sizeof *options
);
1797 int *priority
= xnmalloc (argc
, sizeof *priority
);
1799 int incoming_used
= 1;
1803 /* Categorize all the options,
1804 and figure out which argv elts are option arguments. */
1805 for (from
= 1; from
< argc
; from
++)
1809 if (argv
[from
][0] == '-')
1813 /* If we have found "--", don't consider
1814 any more arguments as options. */
1815 if (argv
[from
][1] == '-' && argv
[from
][2] == 0)
1817 /* Leave the "--", and everything following it, at the end. */
1818 for (; from
< argc
; from
++)
1820 priority
[from
] = -100;
1826 /* Look for a match with a known old-fashioned option. */
1827 for (i
= 0; i
< ARRAYELTS (standard_args
); i
++)
1828 if (!strcmp (argv
[from
], standard_args
[i
].name
))
1830 options
[from
] = standard_args
[i
].nargs
;
1831 priority
[from
] = standard_args
[i
].priority
;
1832 if (from
+ standard_args
[i
].nargs
>= argc
)
1833 fatal ("Option '%s' requires an argument\n", argv
[from
]);
1834 from
+= standard_args
[i
].nargs
;
1838 /* Look for a match with a known long option.
1839 MATCH is -1 if no match so far, -2 if two or more matches so far,
1840 >= 0 (the table index of the match) if just one match so far. */
1841 if (argv
[from
][1] == '-')
1843 char const *equals
= strchr (argv
[from
], '=');
1845 equals
? equals
- argv
[from
] : strlen (argv
[from
]);
1849 for (i
= 0; i
< ARRAYELTS (standard_args
); i
++)
1850 if (standard_args
[i
].longname
1851 && !strncmp (argv
[from
], standard_args
[i
].longname
,
1860 /* If we found exactly one match, use that. */
1863 options
[from
] = standard_args
[match
].nargs
;
1864 priority
[from
] = standard_args
[match
].priority
;
1865 /* If --OPTION=VALUE syntax is used,
1866 this option uses just one argv element. */
1869 if (from
+ options
[from
] >= argc
)
1870 fatal ("Option '%s' requires an argument\n", argv
[from
]);
1871 from
+= options
[from
];
1873 /* FIXME When match < 0, shouldn't there be some error,
1874 or at least indication to the user that there was a
1881 /* Copy the arguments, in order of decreasing priority, to NEW. */
1883 while (incoming_used
< argc
)
1886 int best_priority
= -9999;
1888 /* Find the highest priority remaining option.
1889 If several have equal priority, take the first of them. */
1890 for (from
= 1; from
< argc
; from
++)
1892 if (argv
[from
] != 0 && priority
[from
] > best_priority
)
1894 best_priority
= priority
[from
];
1897 /* Skip option arguments--they are tied to the options. */
1898 if (options
[from
] > 0)
1899 from
+= options
[from
];
1905 /* Copy the highest priority remaining option, with its args, to NEW.
1906 Unless it is a duplicate of the previous one. */
1907 if (! (options
[best
] == 0
1908 && ! strcmp (new[to
- 1], argv
[best
])))
1910 new[to
++] = argv
[best
];
1911 for (i
= 0; i
< options
[best
]; i
++)
1912 new[to
++] = argv
[best
+ i
+ 1];
1915 incoming_used
+= 1 + (options
[best
] > 0 ? options
[best
] : 0);
1917 /* Clear out this option in ARGV. */
1919 for (i
= 0; i
< options
[best
]; i
++)
1920 argv
[best
+ i
+ 1] = 0;
1923 /* If duplicate options were deleted, fill up extra space with null ptrs. */
1927 memcpy (argv
, new, sizeof (char *) * argc
);
1934 DEFUN ("kill-emacs", Fkill_emacs
, Skill_emacs
, 0, 1, "P",
1935 doc
: /* Exit the Emacs job and kill it.
1936 If ARG is an integer, return ARG as the exit program code.
1937 If ARG is a string, stuff it as keyboard input.
1939 This function is called upon receipt of the signals SIGTERM
1940 or SIGHUP, and upon SIGINT in batch mode.
1942 The value of `kill-emacs-hook', if not void,
1943 is a list of functions (of no args),
1944 all of which are called before Emacs is actually killed. */
1945 attributes
: noreturn
)
1950 /* Fsignal calls emacs_abort () if it sees that waiting_for_input is
1952 waiting_for_input
= 0;
1953 run_hook (Qkill_emacs_hook
);
1955 #ifdef HAVE_X_WINDOWS
1956 /* Transfer any clipboards we own to the clipboard manager. */
1957 x_clipboard_manager_save_all ();
1960 shut_down_emacs (0, (STRINGP (arg
) && !feof (stdin
)) ? arg
: Qnil
);
1963 ns_release_autorelease_pool (ns_pool
);
1966 /* If we have an auto-save list file,
1967 kill it because we are exiting Emacs deliberately (not crashing).
1968 Do it after shut_down_emacs, which does an auto-save. */
1969 if (STRINGP (Vauto_save_list_file_name
))
1971 Lisp_Object listfile
;
1972 listfile
= Fexpand_file_name (Vauto_save_list_file_name
, Qnil
);
1973 unlink (SSDATA (listfile
));
1977 exit_code
= (XINT (arg
) < 0
1978 ? XINT (arg
) | INT_MIN
1979 : XINT (arg
) & INT_MAX
);
1981 exit_code
= EXIT_SUCCESS
;
1986 /* Perform an orderly shutdown of Emacs. Autosave any modified
1987 buffers, kill any child processes, clean up the terminal modes (if
1988 we're in the foreground), and other stuff like that. Don't perform
1989 any redisplay; this may be called when Emacs is shutting down in
1990 the background, or after its X connection has died.
1992 If SIG is a signal number, print a message for it.
1994 This is called by fatal signal handlers, X protocol error handlers,
1998 shut_down_emacs (int sig
, Lisp_Object stuff
)
2000 /* Prevent running of hooks from now on. */
2003 /* Don't update display from now on. */
2004 Vinhibit_redisplay
= Qt
;
2006 /* If we are controlling the terminal, reset terminal modes. */
2009 pid_t pgrp
= getpgrp ();
2010 pid_t tpgrp
= tcgetpgrp (0);
2011 if ((tpgrp
!= -1) && tpgrp
== pgrp
)
2013 reset_all_sys_modes ();
2014 if (sig
&& sig
!= SIGTERM
)
2016 static char const format
[] = "Fatal error %d: ";
2017 char buf
[sizeof format
- 2 + INT_STRLEN_BOUND (int)];
2018 int buflen
= sprintf (buf
, format
, sig
);
2019 char const *sig_desc
= safe_strsignal (sig
);
2020 emacs_write (STDERR_FILENO
, buf
, buflen
);
2021 emacs_write (STDERR_FILENO
, sig_desc
, strlen (sig_desc
));
2027 reset_all_sys_modes ();
2030 stuff_buffered_input (stuff
);
2032 inhibit_sentinels
= 1;
2033 kill_buffer_processes (Qnil
);
2034 Fdo_auto_save (Qt
, Qnil
);
2036 unlock_all_files ();
2038 /* There is a tendency for a SIGIO signal to arrive within exit,
2039 and cause a SIGHUP because the input descriptor is already closed. */
2042 /* Do this only if terminating normally, we want glyph matrices
2043 etc. in a core dump. */
2044 if (sig
== 0 || sig
== SIGTERM
)
2046 check_glyph_memory ();
2047 check_message_stack ();
2055 ns_term_shutdown (sig
);
2059 xml_cleanup_parser ();
2073 DEFUN ("dump-emacs", Fdump_emacs
, Sdump_emacs
, 2, 2, 0,
2074 doc
: /* Dump current state of Emacs into executable file FILENAME.
2075 Take symbols from SYMFILE (presumably the file you executed to run Emacs).
2076 This is used in the file `loadup.el' when building Emacs.
2078 You must run Emacs in batch mode in order to dump it. */)
2079 (Lisp_Object filename
, Lisp_Object symfile
)
2083 ptrdiff_t count
= SPECPDL_INDEX ();
2087 if (! noninteractive
)
2088 error ("Dumping Emacs works only in batch mode");
2091 error ("Emacs can be dumped only once");
2095 /* Warn if the gap between BSS end and heap start is larger than this. */
2096 # define MAX_HEAP_BSS_DIFF (1024*1024)
2098 if (heap_bss_diff
> MAX_HEAP_BSS_DIFF
)
2100 fprintf (stderr
, "**************************************************\n");
2101 fprintf (stderr
, "Warning: Your system has a gap between BSS and the\n");
2102 fprintf (stderr
, "heap (%"pMu
" bytes). This usually means that exec-shield\n",
2104 fprintf (stderr
, "or something similar is in effect. The dump may\n");
2105 fprintf (stderr
, "fail because of this. See the section about\n");
2106 fprintf (stderr
, "exec-shield in etc/PROBLEMS for more information.\n");
2107 fprintf (stderr
, "**************************************************\n");
2109 #endif /* GNU_LINUX */
2111 /* Bind `command-line-processed' to nil before dumping,
2112 so that the dumped Emacs will process its command line
2113 and set up to work with X windows if appropriate. */
2114 symbol
= intern ("command-line-processed");
2115 specbind (symbol
, Qnil
);
2117 CHECK_STRING (filename
);
2118 filename
= Fexpand_file_name (filename
, Qnil
);
2119 filename
= ENCODE_FILE (filename
);
2120 if (!NILP (symfile
))
2122 CHECK_STRING (symfile
);
2123 if (SCHARS (symfile
))
2125 symfile
= Fexpand_file_name (symfile
, Qnil
);
2126 symfile
= ENCODE_FILE (symfile
);
2131 Vpurify_flag
= Qnil
;
2133 #ifdef HYBRID_MALLOC
2135 static char const fmt
[] = "%d of %d static heap bytes used";
2136 char buf
[sizeof fmt
+ 2 * (INT_STRLEN_BOUND (int) - 2)];
2137 int max_usage
= max_bss_sbrk_ptr
- bss_sbrk_buffer
;
2138 sprintf (buf
, fmt
, max_usage
, STATIC_HEAP_SIZE
);
2139 /* Don't log messages, because at this point buffers cannot be created. */
2140 message1_nolog (buf
);
2145 /* Tell malloc where start of impure now is. */
2146 /* Also arrange for warnings when nearly out of space. */
2147 #if !defined SYSTEM_MALLOC && !defined HYBRID_MALLOC
2149 /* On Windows, this was done before dumping, and that once suffices.
2150 Meanwhile, my_edata is not valid on Windows. */
2151 memory_warnings (my_edata
, malloc_warning
);
2152 #endif /* not WINDOWSNT */
2153 #endif /* not SYSTEM_MALLOC and not HYBRID_MALLOC */
2155 alloc_unexec_pre ();
2157 unexec (SSDATA (filename
), !NILP (symfile
) ? SSDATA (symfile
) : 0);
2159 alloc_unexec_post ();
2162 Vlibrary_cache
= Qnil
;
2164 #ifdef HAVE_WINDOW_SYSTEM
2165 reset_image_types ();
2170 return unbind_to (count
, Qnil
);
2173 #endif /* not CANNOT_DUMP */
2176 /* Recover from setlocale (LC_ALL, ""). */
2180 /* The Emacs Lisp reader needs LC_NUMERIC to be "C",
2181 so that numbers are read and printed properly for Emacs Lisp. */
2182 setlocale (LC_NUMERIC
, "C");
2185 /* Set system locale CATEGORY, with previous locale *PLOCALE, to
2188 synchronize_locale (int category
, Lisp_Object
*plocale
, Lisp_Object desired_locale
)
2190 if (! EQ (*plocale
, desired_locale
))
2192 *plocale
= desired_locale
;
2194 /* Changing categories like LC_TIME usually requires specifying
2195 an encoding suitable for the new locale, but MS-Windows's
2196 'setlocale' will only switch the encoding when LC_ALL is
2197 specified. So we ignore CATEGORY, use LC_ALL instead, and
2198 then restore LC_NUMERIC to "C", so reading and printing
2199 numbers is unaffected. */
2200 setlocale (LC_ALL
, (STRINGP (desired_locale
)
2201 ? SSDATA (desired_locale
)
2204 #else /* !WINDOWSNT */
2205 setlocale (category
, (STRINGP (desired_locale
)
2206 ? SSDATA (desired_locale
)
2208 #endif /* !WINDOWSNT */
2212 /* Set system time locale to match Vsystem_time_locale, if possible. */
2214 synchronize_system_time_locale (void)
2216 synchronize_locale (LC_TIME
, &Vprevious_system_time_locale
,
2217 Vsystem_time_locale
);
2220 /* Set system messages locale to match Vsystem_messages_locale, if
2223 synchronize_system_messages_locale (void)
2226 synchronize_locale (LC_MESSAGES
, &Vprevious_system_messages_locale
,
2227 Vsystem_messages_locale
);
2230 #endif /* HAVE_SETLOCALE */
2232 /* Return a diagnostic string for ERROR_NUMBER, in the wording
2233 and encoding appropriate for the current locale. */
2235 emacs_strerror (int error_number
)
2237 synchronize_system_messages_locale ();
2238 return strerror (error_number
);
2243 decode_env_path (const char *evarname
, const char *defalt
, bool empty
)
2245 const char *path
, *p
;
2246 Lisp_Object lpath
, element
, tem
;
2247 /* Default is to use "." for empty path elements.
2248 But if argument EMPTY is true, use nil instead. */
2249 Lisp_Object empty_element
= empty
? Qnil
: build_string (".");
2252 static const char *emacs_dir_env
= "%emacs_dir%/";
2253 const size_t emacs_dir_len
= strlen (emacs_dir_env
);
2254 const char *edir
= egetenv ("emacs_dir");
2255 char emacs_dir
[MAX_UTF8_PATH
];
2257 /* egetenv looks in process-environment, which holds the variables
2258 in their original system-locale encoding. We need emacs_dir to
2261 filename_from_ansi (edir
, emacs_dir
);
2264 /* It's okay to use getenv here, because this function is only used
2265 to initialize variables when Emacs starts up, and isn't called
2268 path
= getenv (evarname
);
2279 /* Ensure values from the environment use the proper directory separator. */
2285 char *path_utf8
, *q
, *d
;
2288 /* Convert each element of PATH to UTF-8. */
2289 p
= path_copy
= alloca (strlen (path
) + 1);
2290 strcpy (path_copy
, path
);
2291 d
= path_utf8
= alloca (4 * strlen (path
) + 1);
2294 q
= _mbschr (p
, SEPCHAR
);
2297 cnv_result
= filename_from_ansi (p
, d
);
2302 /* If conversion of this PATH elements fails, make sure
2303 destination pointer will stay put, thus effectively
2304 ignoring the offending element. */
2305 if (cnv_result
== 0)
2311 else if (cnv_result
!= 0 && d
> path_utf8
)
2312 d
[-1] = '\0'; /* remove last semi-colon and null-terminate PATH */
2314 path_copy
= path_utf8
;
2316 path_copy
= alloca (strlen (path
) + 1);
2317 strcpy (path_copy
, path
);
2319 dostounix_filename (path_copy
);
2326 p
= strchr (path
, SEPCHAR
);
2328 p
= path
+ strlen (path
);
2329 element
= ((p
- path
) ? make_unibyte_string (path
, p
- path
)
2331 if (! NILP (element
))
2334 /* Relative file names in the default path are interpreted as
2335 being relative to $emacs_dir. */
2336 if (edir
&& defaulted
2337 && strncmp (path
, emacs_dir_env
, emacs_dir_len
) == 0)
2338 element
= Fexpand_file_name (Fsubstring
2340 make_number (emacs_dir_len
),
2342 build_unibyte_string (emacs_dir
));
2345 /* Add /: to the front of the name
2346 if it would otherwise be treated as magic. */
2347 tem
= Ffind_file_name_handler (element
, Qt
);
2349 /* However, if the handler says "I'm safe",
2350 don't bother adding /:. */
2354 prop
= Fget (tem
, intern ("safe-magic"));
2361 AUTO_STRING (slash_colon
, "/:");
2362 element
= concat2 (slash_colon
, element
);
2364 } /* !NILP (element) */
2366 lpath
= Fcons (element
, lpath
);
2372 return Fnreverse (lpath
);
2375 DEFUN ("daemonp", Fdaemonp
, Sdaemonp
, 0, 0, 0,
2376 doc
: /* Return non-nil if the current emacs process is a daemon.
2377 If the daemon was given a name argument, return that name. */)
2382 return build_string (daemon_name
);
2389 DEFUN ("daemon-initialized", Fdaemon_initialized
, Sdaemon_initialized
, 0, 0, 0,
2390 doc
: /* Mark the Emacs daemon as being initialized.
2391 This finishes the daemonization process by doing the other half of detaching
2392 from the parent process and its tty file descriptors. */)
2398 error ("This function can only be called if emacs is run as a daemon");
2400 if (!DAEMON_RUNNING
)
2401 error ("The daemon has already been initialized");
2403 if (NILP (Vafter_init_time
))
2404 error ("This function can only be called after loading the init files");
2408 /* Get rid of stdin, stdout and stderr. */
2409 nfd
= emacs_open ("/dev/null", O_RDWR
, 0);
2411 err
|= dup2 (nfd
, STDIN_FILENO
) < 0;
2412 err
|= dup2 (nfd
, STDOUT_FILENO
) < 0;
2413 err
|= dup2 (nfd
, STDERR_FILENO
) < 0;
2414 err
|= emacs_close (nfd
) != 0;
2416 /* Closing the pipe will notify the parent that it can exit.
2417 FIXME: In case some other process inherited the pipe, closing it here
2418 won't notify the parent because it's still open elsewhere, so we
2419 additionally send a byte, just to make sure the parent really exits.
2420 Instead, we should probably close the pipe in start-process and
2421 call-process to make sure the pipe is never inherited by
2423 err
|= write (daemon_pipe
[1], "\n", 1) < 0;
2424 err
|= emacs_close (daemon_pipe
[1]) != 0;
2425 /* Set it to an invalid value so we know we've already run this function. */
2426 daemon_pipe
[1] = -1;
2427 #else /* WINDOWSNT */
2428 /* Signal the waiting emacsclient process. */
2429 err
|= SetEvent (w32_daemon_event
) == 0;
2430 err
|= CloseHandle (w32_daemon_event
) == 0;
2431 /* Set it to an invalid value so we know we've already run this function. */
2432 w32_daemon_event
= INVALID_HANDLE_VALUE
;
2436 error ("I/O error during daemon initialization");
2441 syms_of_emacs (void)
2443 DEFSYM (Qfile_name_handler_alist
, "file-name-handler-alist");
2444 DEFSYM (Qrisky_local_variable
, "risky-local-variable");
2445 DEFSYM (Qkill_emacs
, "kill-emacs");
2446 DEFSYM (Qkill_emacs_hook
, "kill-emacs-hook");
2449 defsubr (&Sdump_emacs
);
2452 defsubr (&Skill_emacs
);
2454 defsubr (&Sinvocation_name
);
2455 defsubr (&Sinvocation_directory
);
2456 defsubr (&Sdaemonp
);
2457 defsubr (&Sdaemon_initialized
);
2459 DEFVAR_LISP ("command-line-args", Vcommand_line_args
,
2460 doc
: /* Args passed by shell to Emacs, as a list of strings.
2461 Many arguments are deleted from the list as they are processed. */);
2463 DEFVAR_LISP ("system-type", Vsystem_type
,
2464 doc
: /* The value is a symbol indicating the type of operating system you are using.
2466 `gnu' compiled for a GNU Hurd system.
2467 `gnu/linux' compiled for a GNU/Linux system.
2468 `gnu/kfreebsd' compiled for a GNU system with a FreeBSD kernel.
2469 `darwin' compiled for Darwin (GNU-Darwin, Mac OS X, ...).
2470 `ms-dos' compiled as an MS-DOS application.
2471 `windows-nt' compiled as a native W32 application.
2472 `cygwin' compiled using the Cygwin library.
2473 Anything else (in Emacs 26, the possibilities are: aix, berkeley-unix,
2474 hpux, usg-unix-v) indicates some sort of Unix system. */);
2475 Vsystem_type
= intern_c_string (SYSTEM_TYPE
);
2476 /* See configure.ac for the possible SYSTEM_TYPEs. */
2478 DEFVAR_LISP ("system-configuration", Vsystem_configuration
,
2479 doc
: /* Value is string indicating configuration Emacs was built for. */);
2480 Vsystem_configuration
= build_string (EMACS_CONFIGURATION
);
2482 DEFVAR_LISP ("system-configuration-options", Vsystem_configuration_options
,
2483 doc
: /* String containing the configuration options Emacs was built with. */);
2484 Vsystem_configuration_options
= build_string (EMACS_CONFIG_OPTIONS
);
2486 DEFVAR_LISP ("system-configuration-features", Vsystem_configuration_features
,
2487 doc
: /* String listing some of the main features this Emacs was compiled with.
2488 An element of the form \"FOO\" generally means that HAVE_FOO was
2489 defined during the build.
2491 This is mainly intended for diagnostic purposes in bug reports.
2492 Don't rely on it for testing whether a feature you want to use is available. */);
2493 Vsystem_configuration_features
= build_string (EMACS_CONFIG_FEATURES
);
2495 DEFVAR_BOOL ("noninteractive", noninteractive1
,
2496 doc
: /* Non-nil means Emacs is running without interactive terminal. */);
2498 DEFVAR_LISP ("kill-emacs-hook", Vkill_emacs_hook
,
2499 doc
: /* Hook run when `kill-emacs' is called.
2500 Since `kill-emacs' may be invoked when the terminal is disconnected (or
2501 in other similar situations), functions placed on this hook should not
2502 expect to be able to interact with the user. To ask for confirmation,
2503 see `kill-emacs-query-functions' instead.
2505 Before Emacs 24.1, the hook was not run in batch mode, i.e., if
2506 `noninteractive' was non-nil. */);
2507 Vkill_emacs_hook
= Qnil
;
2509 DEFVAR_LISP ("path-separator", Vpath_separator
,
2510 doc
: /* String containing the character that separates directories in
2511 search paths, such as PATH and other similar environment variables. */);
2514 Vpath_separator
= make_string (&c
, 1);
2517 DEFVAR_LISP ("invocation-name", Vinvocation_name
,
2518 doc
: /* The program name that was used to run Emacs.
2519 Any directory names are omitted. */);
2521 DEFVAR_LISP ("invocation-directory", Vinvocation_directory
,
2522 doc
: /* The directory in which the Emacs executable was found, to run it.
2523 The value is nil if that directory's name is not known. */);
2525 DEFVAR_LISP ("installation-directory", Vinstallation_directory
,
2526 doc
: /* A directory within which to look for the `lib-src' and `etc' directories.
2527 In an installed Emacs, this is normally nil. It is non-nil if
2528 both `lib-src' (on MS-DOS, `info') and `etc' directories are found
2529 within the variable `invocation-directory' or its parent. For example,
2530 this is the case when running an uninstalled Emacs executable from its
2531 build directory. */);
2532 Vinstallation_directory
= Qnil
;
2534 DEFVAR_LISP ("system-messages-locale", Vsystem_messages_locale
,
2535 doc
: /* System locale for messages. */);
2536 Vsystem_messages_locale
= Qnil
;
2538 DEFVAR_LISP ("previous-system-messages-locale",
2539 Vprevious_system_messages_locale
,
2540 doc
: /* Most recently used system locale for messages. */);
2541 Vprevious_system_messages_locale
= Qnil
;
2543 DEFVAR_LISP ("system-time-locale", Vsystem_time_locale
,
2544 doc
: /* System locale for time. */);
2545 Vsystem_time_locale
= Qnil
;
2547 DEFVAR_LISP ("previous-system-time-locale", Vprevious_system_time_locale
,
2548 doc
: /* Most recently used system locale for time. */);
2549 Vprevious_system_time_locale
= Qnil
;
2551 DEFVAR_LISP ("before-init-time", Vbefore_init_time
,
2552 doc
: /* Value of `current-time' before Emacs begins initialization. */);
2553 Vbefore_init_time
= Qnil
;
2555 DEFVAR_LISP ("after-init-time", Vafter_init_time
,
2556 doc
: /* Value of `current-time' after loading the init files.
2557 This is nil during initialization. */);
2558 Vafter_init_time
= Qnil
;
2560 DEFVAR_BOOL ("inhibit-x-resources", inhibit_x_resources
,
2561 doc
: /* If non-nil, X resources, Windows Registry settings, and NS defaults are not used. */);
2562 inhibit_x_resources
= 0;
2564 DEFVAR_LISP ("emacs-copyright", Vemacs_copyright
,
2565 doc
: /* Short copyright string for this version of Emacs. */);
2566 Vemacs_copyright
= build_string (emacs_copyright
);
2568 DEFVAR_LISP ("emacs-version", Vemacs_version
,
2569 doc
: /* Version numbers of this version of Emacs. */);
2570 Vemacs_version
= build_string (emacs_version
);
2572 DEFVAR_LISP ("report-emacs-bug-address", Vreport_emacs_bug_address
,
2573 doc
: /* Address of mailing list for GNU Emacs bugs. */);
2574 Vreport_emacs_bug_address
= build_string (emacs_bugreport
);
2576 DEFVAR_LISP ("dynamic-library-alist", Vdynamic_library_alist
,
2577 doc
: /* Alist of dynamic libraries vs external files implementing them.
2578 Each element is a list (LIBRARY FILE...), where the car is a symbol
2579 representing a supported external library, and the rest are strings giving
2580 alternate filenames for that library.
2582 Emacs tries to load the library from the files in the order they appear on
2583 the list; if none is loaded, the running session of Emacs won't have access
2586 Note that image types `pbm' and `xbm' do not need entries in this variable
2587 because they do not depend on external libraries and are always available.
2589 Also note that this is not a generic facility for accessing external
2590 libraries; only those already known by Emacs will be loaded. */);
2591 Vdynamic_library_alist
= Qnil
;
2592 Fput (intern_c_string ("dynamic-library-alist"), Qrisky_local_variable
, Qt
);
2595 Vlibrary_cache
= Qnil
;
2596 staticpro (&Vlibrary_cache
);