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>
60 #ifdef HAVE_LIBSYSTEMD
61 # include <systemd/sd-daemon.h>
62 # include <sys/socket.h>
65 #ifdef HAVE_WINDOW_SYSTEM
67 #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"
93 #include "getpagesize.h"
96 #if (defined PROFILING \
97 && (defined __FreeBSD__ || defined GNU_LINUX || defined __MINGW32__))
98 # include <sys/gmon.h>
99 extern void moncontrol (int mode
);
102 #ifdef HAVE_SETLOCALE
110 #ifdef HAVE_SETRLIMIT
111 #include <sys/time.h>
112 #include <sys/resource.h>
115 static const char emacs_version
[] = PACKAGE_VERSION
;
116 static const char emacs_copyright
[] = COPYRIGHT
;
117 static const char emacs_bugreport
[] = PACKAGE_BUGREPORT
;
119 /* Empty lisp strings. To avoid having to build any others. */
120 Lisp_Object empty_unibyte_string
, empty_multibyte_string
;
123 /* Cache for externally loaded libraries. */
124 Lisp_Object Vlibrary_cache
;
127 /* Set after Emacs has started up the first time.
128 Prevents reinitialization of the Lisp world and keymaps
129 on subsequent starts. */
132 /* Set to true if this instance of Emacs might dump. */
133 #ifndef DOUG_LEA_MALLOC
139 extern void unexec_init_emacs_zone (void);
142 /* If true, Emacs should not attempt to use a window-specific code,
143 but instead should use the virtual terminal under which it was started. */
144 bool inhibit_window_system
;
146 /* If true, a filter or a sentinel is running. Tested to save the match
147 data on the first attempt to change it inside asynchronous code. */
148 bool running_asynch_code
;
150 #if defined (HAVE_X_WINDOWS) || defined (HAVE_NS)
151 /* If true, -d was specified, meaning we're using some window system. */
155 /* An address near the bottom of the stack.
156 Tells GC how to save a copy of the stack. */
160 /* The gap between BSS end and heap start as far as we can tell. */
161 static uprintmax_t heap_bss_diff
;
164 /* To run as a daemon under Cocoa or Windows, we must do a fork+exec,
167 On Cocoa, CoreFoundation lib fails in forked process:
168 http://developer.apple.com/ReleaseNotes/
169 CoreFoundation/CoreFoundation.html)
171 On Windows, a Cygwin fork child cannot access the USER subsystem.
173 We mark being in the exec'd process by a daemon name argument of
174 form "--daemon=\nFD0,FD1\nNAME" where FD are the pipe file descriptors,
175 NAME is the original daemon name, if any. */
176 #if defined NS_IMPL_COCOA || (defined HAVE_NTGUI && defined CYGWIN)
177 # define DAEMON_MUST_EXEC
180 /* True means running Emacs without interactive terminal. */
183 /* True means remove site-lisp directories from load-path. */
186 /* True means put details like time stamps into builds. */
189 /* Name for the server started by the daemon.*/
190 static char *daemon_name
;
193 /* Pipe used to send exit notification to the daemon parent at
197 HANDLE w32_daemon_event
;
200 /* Save argv and argc. */
204 static void sort_args (int argc
, char **argv
);
205 static void syms_of_emacs (void);
207 /* C99 needs each string to be at most 4095 characters, and the usage
208 strings below are split to not overflow this limit. */
209 static char const *const usage_message
[] =
212 Run Emacs, the extensible, customizable, self-documenting real-time\n\
213 display editor. The recommended way to start Emacs for normal editing\n\
214 is with no options at all.\n\
216 Run M-x info RET m emacs RET m emacs invocation RET inside Emacs to\n\
217 read the main documentation for these command-line arguments.\n\
219 Initialization options:\n\
223 --batch do not do interactive display; implies -q\n\
224 --chdir DIR change to directory DIR\n\
225 --daemon start a server in the background\n\
226 --debug-init enable Emacs Lisp debugger for init file\n\
227 --display, -d DISPLAY use X server DISPLAY\n\
230 --no-build-details do not add build details such as time stamps\n\
231 --no-desktop do not load a saved desktop\n\
232 --no-init-file, -q load neither ~/.emacs nor default.el\n\
233 --no-loadup, -nl do not load loadup.el into bare Emacs\n\
234 --no-site-file do not load site-start.el\n\
235 --no-x-resources do not load X resources\n\
236 --no-site-lisp, -nsl do not add site-lisp directories to load-path\n\
237 --no-splash do not display a splash screen on startup\n\
238 --no-window-system, -nw do not communicate with X, ignoring $DISPLAY\n\
241 --quick, -Q equivalent to:\n\
242 -q --no-site-file --no-site-lisp --no-splash\n\
244 --script FILE run FILE as an Emacs Lisp script\n\
245 --terminal, -t DEVICE use DEVICE for terminal I/O\n\
246 --user, -u USER load ~USER/.emacs instead of your own\n\
252 FILE visit FILE using find-file\n\
253 +LINE go to line LINE in next FILE\n\
254 +LINE:COLUMN go to line LINE, column COLUMN, in next FILE\n\
255 --directory, -L DIR prepend DIR to load-path (with :DIR, append DIR)\n\
256 --eval EXPR evaluate Emacs Lisp expression EXPR\n\
257 --execute EXPR evaluate Emacs Lisp expression EXPR\n\
260 --file FILE visit FILE using find-file\n\
261 --find-file FILE visit FILE using find-file\n\
262 --funcall, -f FUNC call Emacs Lisp function FUNC with no arguments\n\
263 --insert FILE insert contents of FILE into current buffer\n\
264 --kill exit without asking for confirmation\n\
265 --load, -l FILE load Emacs Lisp FILE using the load function\n\
266 --visit FILE visit FILE using find-file\n\
272 --background-color, -bg COLOR window background color\n\
273 --basic-display, -D disable many display features;\n\
274 used for debugging Emacs\n\
275 --border-color, -bd COLOR main border color\n\
276 --border-width, -bw WIDTH width of main border\n\
279 --color, --color=MODE override color mode for character terminals;\n\
280 MODE defaults to `auto', and\n\
281 can also be `never', `always',\n\
282 or a mode name like `ansi8'\n\
283 --cursor-color, -cr COLOR color of the Emacs cursor indicating point\n\
284 --font, -fn FONT default font; must be fixed-width\n\
285 --foreground-color, -fg COLOR window foreground color\n\
288 --fullheight, -fh make the first frame high as the screen\n\
289 --fullscreen, -fs make the first frame fullscreen\n\
290 --fullwidth, -fw make the first frame wide as the screen\n\
291 --maximized, -mm make the first frame maximized\n\
292 --geometry, -g GEOMETRY window geometry\n\
295 --no-bitmap-icon, -nbi do not use picture of gnu for Emacs icon\n\
296 --iconic start Emacs in iconified state\n\
297 --internal-border, -ib WIDTH width between text and main border\n\
298 --line-spacing, -lsp PIXELS additional space to put between lines\n\
299 --mouse-color, -ms COLOR mouse cursor color in Emacs window\n\
300 --name NAME title for initial Emacs frame\n\
303 --no-blinking-cursor, -nbc disable blinking cursor\n\
304 --reverse-video, -r, -rv switch foreground and background\n\
305 --title, -T TITLE title for initial Emacs frame\n\
306 --vertical-scroll-bars, -vb enable vertical scroll bars\n\
307 --xrm XRESOURCES set additional X resources\n\
308 --parent-id XID set parent window\n\
309 --help display this help and exit\n\
310 --version output version information and exit\n\
314 You can generally also specify long option names with a single -; for\n\
315 example, -batch as well as --batch. You can use any unambiguous\n\
316 abbreviation for a --option.\n\
318 Various environment variables and window system resources also affect\n\
319 the operation of Emacs. See the main documentation.\n\
321 Report bugs to " PACKAGE_BUGREPORT
". First, please see the Bugs\n\
322 section of the Emacs manual or the file BUGS.\n"
326 /* True if handling a fatal error already. */
327 bool fatal_error_in_progress
;
330 /* NS autrelease pool, for memory management. */
331 static void *ns_pool
;
336 setlocale (int cat
, char const *locale
)
342 /* True if the current system locale uses UTF-8 encoding. */
348 mbstate_t mbs
= { 0 };
349 return mbrtowc (&wc
, "\xc4\x80", 2, &mbs
) == 2 && wc
== 0x100;
356 /* Report a fatal error due to signal SIG, output a backtrace of at
357 most BACKTRACE_LIMIT lines, and exit. */
359 terminate_due_to_signal (int sig
, int backtrace_limit
)
361 signal (sig
, SIG_DFL
);
363 if (attempt_orderly_shutdown_on_fatal_signal
)
365 /* If fatal error occurs in code below, avoid infinite recursion. */
366 if (! fatal_error_in_progress
)
368 fatal_error_in_progress
= 1;
370 totally_unblock_input ();
371 if (sig
== SIGTERM
|| sig
== SIGHUP
|| sig
== SIGINT
)
372 Fkill_emacs (make_number (sig
));
374 shut_down_emacs (sig
, Qnil
);
375 emacs_backtrace (backtrace_limit
);
379 /* Signal the same code; this time it will really be fatal.
380 Since we're in a signal handler, the signal is blocked, so we
381 have to unblock it if we want to really receive it. */
385 sigemptyset (&unblocked
);
386 sigaddset (&unblocked
, sig
);
387 pthread_sigmask (SIG_UNBLOCK
, &unblocked
, 0);
393 /* This shouldn't be executed, but it prevents a warning. */
397 /* Code for dealing with Lisp access to the Unix command line. */
400 init_cmdargs (int argc
, char **argv
, int skip_args
, char *original_pwd
)
403 Lisp_Object name
, dir
, handler
;
404 ptrdiff_t count
= SPECPDL_INDEX ();
405 Lisp_Object raw_name
;
406 AUTO_STRING (slash_colon
, "/:");
412 /* Must use argv[0] converted to UTF-8, as it begets many standard
413 file and directory names. */
415 char argv0
[MAX_UTF8_PATH
];
417 if (filename_from_ansi (argv
[0], argv0
) == 0)
418 raw_name
= build_unibyte_string (argv0
);
420 raw_name
= build_unibyte_string (argv
[0]);
423 raw_name
= build_unibyte_string (argv
[0]);
426 /* Add /: to the front of the name
427 if it would otherwise be treated as magic. */
428 handler
= Ffind_file_name_handler (raw_name
, Qt
);
429 if (! NILP (handler
))
430 raw_name
= concat2 (slash_colon
, raw_name
);
432 Vinvocation_name
= Ffile_name_nondirectory (raw_name
);
433 Vinvocation_directory
= Ffile_name_directory (raw_name
);
435 /* If we got no directory in argv[0], search PATH to find where
436 Emacs actually came from. */
437 if (NILP (Vinvocation_directory
))
440 int yes
= openp (Vexec_path
, Vinvocation_name
,
441 Vexec_suffixes
, &found
, make_number (X_OK
), false);
444 /* Add /: to the front of the name
445 if it would otherwise be treated as magic. */
446 handler
= Ffind_file_name_handler (found
, Qt
);
447 if (! NILP (handler
))
448 found
= concat2 (slash_colon
, found
);
449 Vinvocation_directory
= Ffile_name_directory (found
);
453 if (!NILP (Vinvocation_directory
)
454 && NILP (Ffile_name_absolute_p (Vinvocation_directory
)))
455 /* Emacs was started with relative path, like ./emacs.
459 original_pwd
? build_unibyte_string (original_pwd
) : Qnil
;
461 Vinvocation_directory
= Fexpand_file_name (Vinvocation_directory
, odir
);
464 Vinstallation_directory
= Qnil
;
466 if (!NILP (Vinvocation_directory
))
468 dir
= Vinvocation_directory
;
470 /* If we are running from the build directory, set DIR to the
471 src subdirectory of the Emacs tree, like on Posix
473 if (SBYTES (dir
) > sizeof ("/i386/") - 1
474 && 0 == strcmp (SSDATA (dir
) + SBYTES (dir
) - sizeof ("/i386/") + 1,
476 dir
= Fexpand_file_name (build_string ("../.."), dir
);
477 #else /* !WINDOWSNT */
479 name
= Fexpand_file_name (Vinvocation_name
, dir
);
482 Lisp_Object tem
, lib_src_exists
;
483 Lisp_Object etc_exists
, info_exists
;
485 /* See if dir contains subdirs for use by Emacs.
486 Check for the ones that would exist in a build directory,
487 not including lisp and info. */
488 tem
= Fexpand_file_name (build_string ("lib-src"), dir
);
489 lib_src_exists
= Ffile_exists_p (tem
);
492 /* MSDOS installations frequently remove lib-src, but we still
493 must set installation-directory, or else info won't find
494 its files (it uses the value of installation-directory). */
495 tem
= Fexpand_file_name (build_string ("info"), dir
);
496 info_exists
= Ffile_exists_p (tem
);
501 if (!NILP (lib_src_exists
) || !NILP (info_exists
))
503 tem
= Fexpand_file_name (build_string ("etc"), dir
);
504 etc_exists
= Ffile_exists_p (tem
);
505 if (!NILP (etc_exists
))
507 Vinstallation_directory
508 = Ffile_name_as_directory (dir
);
513 /* See if dir's parent contains those subdirs. */
514 tem
= Fexpand_file_name (build_string ("../lib-src"), dir
);
515 lib_src_exists
= Ffile_exists_p (tem
);
519 /* See the MSDOS commentary above. */
520 tem
= Fexpand_file_name (build_string ("../info"), dir
);
521 info_exists
= Ffile_exists_p (tem
);
526 if (!NILP (lib_src_exists
) || !NILP (info_exists
))
528 tem
= Fexpand_file_name (build_string ("../etc"), dir
);
529 etc_exists
= Ffile_exists_p (tem
);
530 if (!NILP (etc_exists
))
532 tem
= Fexpand_file_name (build_string (".."), dir
);
533 Vinstallation_directory
534 = Ffile_name_as_directory (tem
);
539 /* If the Emacs executable is actually a link,
540 next try the dir that the link points into. */
541 tem
= Ffile_symlink_p (name
);
544 name
= Fexpand_file_name (tem
, dir
);
545 dir
= Ffile_name_directory (name
);
552 Vcommand_line_args
= Qnil
;
554 for (i
= argc
- 1; i
>= 0; i
--)
556 if (i
== 0 || i
> skip_args
)
557 /* For the moment, we keep arguments as is in unibyte strings.
558 They are decoded in the function command-line after we know
559 locale-coding-system. */
561 = Fcons (build_unibyte_string (argv
[i
]), Vcommand_line_args
);
564 unbind_to (count
, Qnil
);
567 DEFUN ("invocation-name", Finvocation_name
, Sinvocation_name
, 0, 0, 0,
568 doc
: /* Return the program name that was used to run Emacs.
569 Any directory names are omitted. */)
572 return Fcopy_sequence (Vinvocation_name
);
575 DEFUN ("invocation-directory", Finvocation_directory
, Sinvocation_directory
,
577 doc
: /* Return the directory name in which the Emacs executable was located. */)
580 return Fcopy_sequence (Vinvocation_directory
);
584 /* Test whether the next argument in ARGV matches SSTR or a prefix of
585 LSTR (at least MINLEN characters). If so, then if VALPTR is non-null
586 (the argument is supposed to have a value) store in *VALPTR either
587 the next argument or the portion of this one after the equal sign.
588 ARGV is read starting at position *SKIPPTR; this index is advanced
589 by the number of arguments used.
591 Too bad we can't just use getopt for all of this, but we don't have
592 enough information to do it right. */
595 argmatch (char **argv
, int argc
, const char *sstr
, const char *lstr
,
596 int minlen
, char **valptr
, int *skipptr
)
602 /* Don't access argv[argc]; give up in advance. */
603 if (argc
<= *skipptr
+ 1)
606 arg
= argv
[*skipptr
+1];
609 if (strcmp (arg
, sstr
) == 0)
613 *valptr
= argv
[*skipptr
+2];
620 arglen
= (valptr
!= NULL
&& (p
= strchr (arg
, '=')) != NULL
621 ? p
- arg
: strlen (arg
));
622 if (lstr
== 0 || arglen
< minlen
|| strncmp (arg
, lstr
, arglen
) != 0)
624 else if (valptr
== NULL
)
635 else if (argv
[*skipptr
+2] != NULL
)
637 *valptr
= argv
[*skipptr
+2];
647 /* Close standard output and standard error, reporting any write
648 errors as best we can. This is intended for use with atexit. */
650 close_output_streams (void)
652 if (close_stream (stdout
) != 0)
654 emacs_perror ("Write error to standard output");
655 _exit (EXIT_FAILURE
);
658 if (close_stream (stderr
) != 0)
659 _exit (EXIT_FAILURE
);
664 main (int argc
, char **argv
)
667 char stack_bottom_variable
;
668 bool do_initial_setlocale
;
671 bool no_loadup
= false;
674 #ifdef DAEMON_MUST_EXEC
679 /* If we use --chdir, this records the original directory. */
680 char *original_pwd
= 0;
684 dumping
= !initialized
&& (strcmp (argv
[argc
- 1], "dump") == 0
685 || strcmp (argv
[argc
- 1], "bootstrap") == 0);
687 /* True if address randomization interferes with memory allocation. */
689 bool disable_aslr
= true;
691 bool disable_aslr
= dumping
;
694 if (disable_aslr
&& disable_address_randomization ())
696 /* Set this so the personality will be reverted before execs
698 xputenv ("EMACS_HEAP_EXEC=true");
700 /* Address randomization was enabled, but is now disabled.
701 Re-execute Emacs to get a clean slate. */
702 execvp (argv
[0], argv
);
704 /* If the exec fails, warn and then try anyway. */
709 might_dump
= !initialized
;
715 char *heap_start
= my_heap_start ();
716 heap_bss_diff
= heap_start
- max (my_endbss
, my_endbss_static
);
720 #if defined WINDOWSNT || defined HAVE_NTGUI
721 /* Set global variables used to detect Windows version. Do this as
722 early as possible. (unexw32.c calls this function as well, but
723 the additional call here is harmless.) */
724 cache_system_info ();
726 /* On Windows 9X, we have to load UNICOWS.DLL as early as possible,
727 to have non-stub implementations of APIs we need to convert file
728 names between UTF-8 and the system's ANSI codepage. */
729 maybe_load_unicows_dll ();
731 /* This has to be done before module_init is called below, so that
732 the latter could use the thread ID of the main thread. */
733 w32_init_main_thread ();
736 #ifdef RUN_TIME_REMAP
738 run_time_remap (argv
[0]);
741 /* If using unexmacosx.c (set by s/darwin.h), we must do this. */
744 unexec_init_emacs_zone ();
747 init_standard_fds ();
748 atexit (close_output_streams
);
754 sort_args (argc
, argv
);
756 while (argv
[argc
]) argc
++;
758 if (argmatch (argv
, argc
, "-version", "--version", 3, NULL
, &skip_args
))
760 const char *version
, *copyright
;
763 Lisp_Object tem
, tem2
;
764 tem
= Fsymbol_value (intern_c_string ("emacs-version"));
765 tem2
= Fsymbol_value (intern_c_string ("emacs-copyright"));
768 fprintf (stderr
, "Invalid value of 'emacs-version'\n");
773 fprintf (stderr
, "Invalid value of 'emacs-copyright'\n");
778 version
= SSDATA (tem
);
779 copyright
= SSDATA (tem2
);
784 version
= emacs_version
;
785 copyright
= emacs_copyright
;
787 printf ("%s %s\n", PACKAGE_NAME
, version
);
788 printf ("%s\n", copyright
);
789 printf ("%s comes with ABSOLUTELY NO WARRANTY.\n", PACKAGE_NAME
);
790 printf ("You may redistribute copies of %s\n", PACKAGE_NAME
);
791 printf ("under the terms of the GNU General Public License.\n");
792 printf ("For more information about these matters, ");
793 printf ("see the file named COPYING.\n");
797 if (argmatch (argv
, argc
, "-chdir", "--chdir", 4, &ch_to_dir
, &skip_args
))
800 /* argv[] array is kept in its original ANSI codepage encoding,
801 we need to convert to UTF-8, for chdir to work. */
802 char newdir
[MAX_UTF8_PATH
];
804 filename_from_ansi (ch_to_dir
, newdir
);
807 original_pwd
= emacs_get_current_dir_name ();
808 if (chdir (ch_to_dir
) != 0)
810 fprintf (stderr
, "%s: Can't chdir to %s: %s\n",
811 argv
[0], ch_to_dir
, strerror (errno
));
816 #if defined (HAVE_SETRLIMIT) && defined (RLIMIT_STACK) && !defined (CYGWIN)
817 /* Extend the stack space available. Don't do that if dumping,
818 since some systems (e.g. DJGPP) might define a smaller stack
819 limit at that time. And it's not needed on Cygwin, since emacs
820 is built with an 8MB stack. Moreover, the setrlimit call can
821 cause problems on Cygwin
822 (https://www.cygwin.com/ml/cygwin/2015-07/msg00096.html). */
824 if (getrlimit (RLIMIT_STACK
, &rlim
) == 0
825 && 0 <= rlim
.rlim_cur
&& rlim
.rlim_cur
<= LONG_MAX
)
827 long lim
= rlim
.rlim_cur
;
829 /* Approximate the amount regex.c needs per unit of
830 re_max_failures, then add 33% to cover the size of the
831 smaller stacks that regex.c successively allocates and
832 discards on its way to the maximum. */
833 int ratio
= 20 * sizeof (char *);
836 /* Extra space to cover what we're likely to use for other reasons. */
839 bool try_to_grow_stack
= true;
841 try_to_grow_stack
= !noninteractive
|| initialized
;
844 if (try_to_grow_stack
)
846 long newlim
= re_max_failures
* ratio
+ extra
;
848 /* Round the new limit to a page boundary; this is needed
849 for Darwin kernel 15.4.0 (see Bug#23622) and perhaps
850 other systems. Do not shrink the stack and do not exceed
851 rlim_max. Don't worry about exact values of
852 RLIM_INFINITY etc. since in practice when they are
853 nonnegative they are so large that the code does the
854 right thing anyway. */
855 long pagesize
= getpagesize ();
856 newlim
+= pagesize
- 1;
857 if (0 <= rlim
.rlim_max
&& rlim
.rlim_max
< newlim
)
858 newlim
= rlim
.rlim_max
;
859 newlim
-= newlim
% pagesize
;
861 if (pagesize
<= newlim
- lim
)
863 rlim
.rlim_cur
= newlim
;
864 if (setrlimit (RLIMIT_STACK
, &rlim
) == 0)
869 /* Don't let regex.c overflow the stack. */
870 re_max_failures
= lim
< extra
? 0 : min (lim
- extra
, SIZE_MAX
) / ratio
;
872 #endif /* HAVE_SETRLIMIT and RLIMIT_STACK and not CYGWIN */
874 /* Record (approximately) where the stack begins. */
875 stack_bottom
= &stack_bottom_variable
;
879 emacs_backtrace (-1);
881 #if !defined SYSTEM_MALLOC && !defined HYBRID_MALLOC
882 /* Arrange to get warning messages as memory fills up. */
883 memory_warnings (0, malloc_warning
);
885 /* Call malloc at least once, to run malloc_initialize_hook.
886 Also call realloc and free for consistency. */
887 free (realloc (malloc (4), 4));
889 #endif /* not SYSTEM_MALLOC and not HYBRID_MALLOC */
892 SET_BINARY (fileno (stdin
));
894 SET_BINARY (fileno (stdout
));
897 /* Skip initial setlocale if LC_ALL is "C", as it's not needed in that case.
898 The build procedure uses this while dumping, to ensure that the
899 dumped Emacs does not have its system locale tables initialized,
900 as that might cause screwups when the dumped Emacs starts up. */
902 char *lc_all
= getenv ("LC_ALL");
903 do_initial_setlocale
= ! lc_all
|| strcmp (lc_all
, "C");
906 /* Set locale now, so that initial error messages are localized properly.
907 fixup_locale must wait until later, since it builds strings. */
908 if (do_initial_setlocale
)
909 setlocale (LC_ALL
, "");
910 text_quoting_flag
= using_utf8 ();
912 inhibit_window_system
= 0;
914 /* Handle the -t switch, which specifies filename to use as terminal. */
918 if (argmatch (argv
, argc
, "-t", "--terminal", 4, &term
, &skip_args
))
920 emacs_close (STDIN_FILENO
);
921 emacs_close (STDOUT_FILENO
);
922 int result
= emacs_open (term
, O_RDWR
, 0);
923 if (result
!= STDIN_FILENO
924 || (fcntl (STDIN_FILENO
, F_DUPFD_CLOEXEC
, STDOUT_FILENO
)
927 char *errstring
= strerror (errno
);
928 fprintf (stderr
, "%s: %s: %s\n", argv
[0], term
, errstring
);
931 if (! isatty (STDIN_FILENO
))
933 fprintf (stderr
, "%s: %s: not a tty\n", argv
[0], term
);
936 fprintf (stderr
, "Using %s\n", term
);
937 #ifdef HAVE_WINDOW_SYSTEM
938 inhibit_window_system
= true; /* -t => -nw */
945 /* Command line option --no-windows is deprecated and thus not mentioned
946 in the manual and usage information. */
947 if (argmatch (argv
, argc
, "-nw", "--no-window-system", 6, NULL
, &skip_args
)
948 || argmatch (argv
, argc
, "-nw", "--no-windows", 6, NULL
, &skip_args
))
949 inhibit_window_system
= 1;
951 /* Handle the -batch switch, which means don't do interactive display. */
953 if (argmatch (argv
, argc
, "-batch", "--batch", 5, NULL
, &skip_args
))
956 Vundo_outer_limit
= Qnil
;
958 if (argmatch (argv
, argc
, "-script", "--script", 3, &junk
, &skip_args
))
960 noninteractive
= 1; /* Set batch mode. */
961 /* Convert --script to -scriptload, un-skip it, and sort again
962 so that it will be handled in proper sequence. */
963 /* FIXME broken for --script=FILE - is that supposed to work? */
964 argv
[skip_args
- 1] = (char *) "-scriptload";
966 sort_args (argc
, argv
);
969 /* Handle the --help option, which gives a usage message. */
970 if (argmatch (argv
, argc
, "-help", "--help", 3, NULL
, &skip_args
))
973 printf ("Usage: %s [OPTION-OR-FILENAME]...\n", argv
[0]);
974 for (i
= 0; i
< ARRAYELTS (usage_message
); i
++)
975 fputs (usage_message
[i
], stdout
);
980 /* Make sure IS_DAEMON starts up as false. */
983 w32_daemon_event
= NULL
;
989 if (argmatch (argv
, argc
, "-daemon", "--daemon", 5, NULL
, &skip_args
)
990 || argmatch (argv
, argc
, "-daemon", "--daemon", 5, &dname_arg
, &skip_args
))
995 /* Start as a daemon: fork a new child process which will run the
996 rest of the initialization code, then exit.
998 Detaching a daemon requires the following steps:
1002 - close the tty file-descriptors
1004 We only want to do the last 2 steps once the daemon is ready to
1005 serve requests, i.e. after loading .emacs (initialization).
1006 OTOH initialization may start subprocesses (e.g. ispell) and these
1007 should be run from the proper process (the one that will end up
1008 running as daemon) and with the proper "session id" in order for
1009 them to keep working after detaching, so fork and setsid need to be
1010 performed before initialization.
1012 We want to avoid exiting before the server socket is ready, so
1013 use a pipe for synchronization. The parent waits for the child
1014 to close its end of the pipe (using `daemon-initialized')
1016 if (emacs_pipe (daemon_pipe
) != 0)
1018 fprintf (stderr
, "Cannot pipe!\n");
1022 #ifdef HAVE_LIBSYSTEMD
1023 /* Read the number of sockets passed through by systemd. */
1024 int systemd_socket
= sd_listen_fds (1);
1026 if (systemd_socket
> 1)
1029 "Warning: systemd passed more than one socket to Emacs.\n"
1030 "Try 'Accept=false' in the Emacs socket unit file.\n"));
1031 else if (systemd_socket
== 1
1032 && (0 < sd_is_socket (SD_LISTEN_FDS_START
,
1033 AF_UNSPEC
, SOCK_STREAM
, 1)))
1034 sockfd
= SD_LISTEN_FDS_START
;
1035 #endif /* HAVE_LIBSYSTEMD */
1037 #ifndef DAEMON_MUST_EXEC
1039 fprintf (stderr
, "\nWarning: due to a long standing Gtk+ bug\nhttp://bugzilla.gnome.org/show_bug.cgi?id=85715\n\
1040 Emacs might crash when run in daemon mode and the X11 connection is unexpectedly lost.\n\
1041 Using an Emacs configured with --with-x-toolkit=lucid does not have this problem.\n");
1042 #endif /* USE_GTK */
1044 #else /* DAEMON_MUST_EXEC */
1045 if (!dname_arg
|| !strchr (dname_arg
, '\n'))
1046 f
= fork (); /* in orig */
1048 f
= 0; /* in exec'd */
1049 #endif /* !DAEMON_MUST_EXEC */
1055 /* Close unused writing end of the pipe. */
1056 emacs_close (daemon_pipe
[1]);
1058 /* Just wait for the child to close its end of the pipe. */
1061 retval
= read (daemon_pipe
[0], &buf
, 1);
1063 while (retval
== -1 && errno
== EINTR
);
1067 fprintf (stderr
, "Error reading status from child\n");
1070 else if (retval
== 0)
1072 fprintf (stderr
, "Error: server did not start correctly\n");
1076 emacs_close (daemon_pipe
[0]);
1081 emacs_perror ("fork");
1082 exit (EXIT_CANCELED
);
1085 #ifdef DAEMON_MUST_EXEC
1087 /* In orig process, forked as child, OR in exec'd. */
1088 if (!dname_arg
|| !strchr (dname_arg
, '\n'))
1089 { /* In orig, child: now exec w/special daemon name. */
1092 snprintf (fdStr
, sizeof fdStr
,
1093 "--daemon=\n%d,%d\n%s", daemon_pipe
[0],
1094 daemon_pipe
[1], dname_arg
? dname_arg
: "");
1096 if (! (0 <= fdStrlen
&& fdStrlen
< sizeof fdStr
))
1098 fprintf (stderr
, "daemon: child name too long\n");
1099 exit (EXIT_CANNOT_INVOKE
);
1102 argv
[skip_args
] = fdStr
;
1104 fcntl (daemon_pipe
[0], F_SETFD
, 0);
1105 fcntl (daemon_pipe
[1], F_SETFD
, 0);
1106 execvp (argv
[0], argv
);
1107 emacs_perror (argv
[0]);
1108 exit (errno
== ENOENT
? EXIT_ENOENT
: EXIT_CANNOT_INVOKE
);
1111 /* In exec'd: parse special dname into pipe and name info. */
1112 if (!dname_arg
|| !strchr (dname_arg
, '\n')
1113 || strlen (dname_arg
) < 1 || strlen (dname_arg
) > 70)
1115 fprintf (stderr
, "emacs daemon: daemon name absent or too long\n");
1116 exit (EXIT_CANNOT_INVOKE
);
1118 dname_arg2
[0] = '\0';
1119 sscanf (dname_arg
, "\n%d,%d\n%s", &(daemon_pipe
[0]), &(daemon_pipe
[1]),
1121 dname_arg
= *dname_arg2
? dname_arg2
: NULL
;
1122 fcntl (daemon_pipe
[1], F_SETFD
, FD_CLOEXEC
);
1124 #endif /* DAEMON_MUST_EXEC */
1126 /* Close unused reading end of the pipe. */
1127 emacs_close (daemon_pipe
[0]);
1130 #elif defined(WINDOWSNT)
1131 /* Indicate that we want daemon mode. */
1132 w32_daemon_event
= CreateEvent (NULL
, TRUE
, FALSE
, W32_DAEMON_EVENT
);
1133 if (w32_daemon_event
== NULL
)
1135 fprintf (stderr
, "Couldn't create MS-Windows event for daemon: %s\n",
1140 fprintf (stderr
, "This platform does not support the -daemon flag.\n");
1144 daemon_name
= xstrdup (dname_arg
);
1147 #if defined HAVE_PTHREAD && !defined SYSTEM_MALLOC \
1148 && !defined DOUG_LEA_MALLOC && !defined HYBRID_MALLOC
1149 # ifndef CANNOT_DUMP
1150 /* Do not make gmalloc thread-safe when creating bootstrap-emacs, as
1151 that causes an infinite recursive loop with FreeBSD. See
1152 Bug#14569. The part of this bug involving Cygwin is no longer
1153 relevant, now that Cygwin defines HYBRID_MALLOC. */
1154 if (!noninteractive
|| initialized
)
1156 malloc_enable_thread ();
1159 init_signals (dumping
);
1161 noninteractive1
= noninteractive
;
1163 /* Perform basic initializations (not merely interning symbols). */
1170 init_charset_once ();
1171 init_coding_once ();
1172 init_syntax_once (); /* Create standard syntax table. */
1173 init_category_once (); /* Create standard category table. */
1174 init_casetab_once (); /* Must be done before init_buffer_once. */
1175 init_buffer_once (); /* Create buffer table and some buffers. */
1176 init_minibuf_once (); /* Create list of minibuffers. */
1177 /* Must precede init_window_once. */
1179 /* Call syms_of_xfaces before init_window_once because that
1180 function creates Vterminal_frame. Termcap frames now use
1181 faces, and the face implementation uses some symbols as
1184 /* XXX syms_of_keyboard uses some symbols in keymap.c. It would
1185 be better to arrange things not to have this dependency. */
1187 /* Call syms_of_keyboard before init_window_once because
1188 keyboard sets up symbols that include some face names that
1189 the X support will want to use. This can happen when
1190 CANNOT_DUMP is defined. */
1191 syms_of_keyboard ();
1193 /* Called before syms_of_fileio, because it sets up Qerror_condition. */
1195 syms_of_fns (); /* Before syms_of_charset which uses hashtables. */
1197 /* Before syms_of_coding to initialize Vgc_cons_threshold. */
1199 /* May call Ffuncall and so GC, thus the latter should be initialized. */
1201 /* Before syms_of_coding because it initializes Qcharsetp. */
1203 /* Before init_window_once, because it sets up the
1204 Vcoding_system_hash_table. */
1205 syms_of_coding (); /* This should be after syms_of_fileio. */
1207 init_window_once (); /* Init the window system. */
1208 #ifdef HAVE_WINDOW_SYSTEM
1209 init_fringe_once (); /* Swap bitmaps if necessary. */
1210 #endif /* HAVE_WINDOW_SYSTEM */
1215 if (do_initial_setlocale
)
1218 Vsystem_messages_locale
= Vprevious_system_messages_locale
;
1219 Vsystem_time_locale
= Vprevious_system_time_locale
;
1224 running_asynch_code
= 0;
1228 = argmatch (argv
, argc
, "-nl", "--no-loadup", 6, NULL
, &skip_args
);
1231 = argmatch (argv
, argc
, "-nsl", "--no-site-lisp", 11, NULL
, &skip_args
);
1233 build_details
= ! argmatch (argv
, argc
, "-no-build-details",
1234 "--no-build-details", 7, NULL
, &skip_args
);
1237 ns_pool
= ns_alloc_autorelease_pool ();
1238 #ifdef NS_IMPL_GNUSTEP
1239 /* GNUstep stupidly resets our locale settings after we made them. */
1243 if (!noninteractive
)
1245 #ifdef NS_IMPL_COCOA
1246 /* Started from GUI? */
1247 /* FIXME: Do the right thing if getenv returns NULL, or if
1249 if (! inhibit_window_system
&& ! isatty (STDIN_FILENO
) && ! ch_to_dir
)
1250 chdir (getenv ("HOME"));
1251 if (skip_args
< argc
)
1253 if (!strncmp (argv
[skip_args
], "-psn", 4))
1256 if (! ch_to_dir
) chdir (getenv ("HOME"));
1258 else if (skip_args
+1 < argc
&& !strncmp (argv
[skip_args
+1], "-psn", 4))
1261 if (! ch_to_dir
) chdir (getenv ("HOME"));
1266 #endif /* HAVE_NS */
1268 #ifdef HAVE_X_WINDOWS
1269 /* Stupid kludge to catch command-line display spec. We can't
1270 handle this argument entirely in window system dependent code
1271 because we don't even know which window system dependent code
1272 to run until we've recognized this argument. */
1274 char *displayname
= 0;
1275 int count_before
= skip_args
;
1277 /* Skip any number of -d options, but only use the last one. */
1280 int count_before_this
= skip_args
;
1282 if (argmatch (argv
, argc
, "-d", "--display", 3, &displayname
, &skip_args
))
1284 else if (argmatch (argv
, argc
, "-display", 0, 3, &displayname
, &skip_args
))
1289 count_before
= count_before_this
;
1292 /* If we have the form --display=NAME,
1293 convert it into -d name.
1294 This requires inserting a new element into argv. */
1295 if (displayname
&& count_before
< skip_args
)
1297 if (skip_args
== count_before
+ 1)
1299 memmove (argv
+ count_before
+ 3, argv
+ count_before
+ 2,
1300 (argc
- (count_before
+ 2)) * sizeof *argv
);
1301 argv
[count_before
+ 2] = displayname
;
1304 argv
[count_before
+ 1] = (char *) "-d";
1309 if (argmatch (argv
, argc
, "-Q", "--quick", 3, NULL
, &skip_args
)
1310 || argmatch (argv
, argc
, "-quick", 0, 2, NULL
, &skip_args
))
1314 /* Don't actually discard this arg. */
1315 skip_args
= count_before
;
1317 #else /* !HAVE_X_WINDOWS */
1320 int count_before
= skip_args
;
1322 if (argmatch (argv
, argc
, "-Q", "--quick", 3, NULL
, &skip_args
)
1323 || argmatch (argv
, argc
, "-quick", 0, 2, NULL
, &skip_args
))
1326 skip_args
= count_before
;
1330 /* argmatch must not be used after here,
1331 except when building temacs
1332 because the -d argument has not been skipped in skip_args. */
1335 /* Call early 'cause init_environment needs it. */
1337 /* Set defaults for several environment variables. */
1339 init_environment (argc
, argv
, skip_args
);
1345 globals_of_kqueue ();
1348 #ifdef HAVE_GFILENOTIFY
1349 globals_of_gfilenotify ();
1353 /* Initialize the locale from user defaults. */
1357 /* Initialize and GC-protect Vinitial_environment and
1358 Vprocess_environment before set_initial_environment fills them
1361 syms_of_callproc ();
1362 /* egetenv is a pretty low-level facility, which may get called in
1363 many circumstances; it seems flimsy to put off initializing it
1364 until calling init_callproc. Do not do it when dumping. */
1366 set_initial_environment ();
1370 #ifdef HAVE_W32NOTIFY
1371 globals_of_w32notify ();
1373 /* Initialize environment from registry settings. Make sure to do
1374 this only after calling set_initial_environment so that
1375 Vinitial_environment and Vprocess_environment will contain only
1376 variables from the parent process without modifications from
1378 init_environment (argv
);
1379 init_ntproc (dumping
); /* must precede init_editfns. */
1382 /* AIX crashes are reported in system versions 3.2.3 and 3.2.4
1383 if this is not done. Do it after set_global_environment so that we
1384 don't pollute Vglobal_environment. */
1385 /* Setting LANG here will defeat the startup locale processing... */
1390 /* Init buffer storage and default directory of main buffer. */
1391 init_buffer (initialized
);
1393 init_callproc_1 (); /* Must precede init_cmdargs and init_sys_modes. */
1395 /* Must precede init_lread. */
1396 init_cmdargs (argc
, argv
, skip_args
, original_pwd
);
1400 /* Erase any pre-dump messages in the message log, to avoid confusion. */
1401 Lisp_Object old_log_max
;
1402 old_log_max
= Vmessage_log_max
;
1403 XSETFASTINT (Vmessage_log_max
, 0);
1404 message_dolog ("", 0, 1, 0);
1405 Vmessage_log_max
= old_log_max
;
1408 init_callproc (); /* Must follow init_cmdargs but not init_sys_modes. */
1412 /* Check to see if Emacs has been installed correctly. */
1413 check_windows_init_file ();
1416 /* Intern the names of all standard functions and variables;
1417 define standard keys. */
1421 /* The basic levels of Lisp must come first. Note that
1422 syms_of_data and some others have already been called. */
1427 syms_of_floatfns ();
1430 syms_of_bytecode ();
1432 syms_of_casefiddle ();
1434 syms_of_category ();
1436 syms_of_character ();
1443 syms_of_filelock ();
1446 /* syms_of_keymap (); */
1454 syms_of_terminal ();
1465 syms_of_textprop ();
1466 syms_of_composite ();
1469 #endif /* WINDOWSNT */
1476 #ifdef HAVE_WINDOW_SYSTEM
1479 #endif /* HAVE_WINDOW_SYSTEM */
1480 #ifdef HAVE_X_WINDOWS
1486 syms_of_xsettings ();
1493 #endif /* HAVE_X_WINDOWS */
1500 syms_of_decompress ();
1510 #endif /* HAVE_NTGUI */
1512 #if defined WINDOWSNT || defined HAVE_NTGUI
1513 syms_of_w32select ();
1520 syms_of_win16select ();
1527 syms_of_nsselect ();
1529 #endif /* HAVE_NS */
1535 #endif /* HAVE_INOTIFY */
1539 #endif /* HAVE_KQUEUE */
1541 #ifdef HAVE_GFILENOTIFY
1542 syms_of_gfilenotify ();
1543 #endif /* HAVE_GFILENOTIFY */
1546 syms_of_dbusbind ();
1547 #endif /* HAVE_DBUS */
1551 #ifdef HAVE_W32NOTIFY
1552 syms_of_w32notify ();
1553 #endif /* HAVE_W32NOTIFY */
1554 #endif /* WINDOWSNT */
1556 syms_of_profiler ();
1558 keys_of_casefiddle ();
1561 keys_of_keyboard ();
1567 /* Initialization that must be done even if the global variable
1568 initialized is non zero. */
1570 globals_of_w32font ();
1571 globals_of_w32fns ();
1572 globals_of_w32menu ();
1573 #endif /* HAVE_NTGUI */
1575 #if defined WINDOWSNT || defined HAVE_NTGUI
1576 globals_of_w32select ();
1582 /* This calls putenv and so must precede init_process_emacs. Also,
1583 it sets Voperating_system_release, which init_process_emacs uses. */
1584 init_editfns (dumping
);
1586 /* These two call putenv. */
1594 /* This can create a thread that may call getenv, so it must follow
1595 all calls to putenv and setenv. Also, this sets up
1596 add_keyboard_wait_descriptor, which init_display uses. */
1597 init_process_emacs (sockfd
);
1599 init_keyboard (); /* This too must precede init_sys_modes. */
1600 if (!noninteractive
)
1601 init_display (); /* Determine terminal type. Calls init_sys_modes. */
1604 init_crit (); /* w32notify.c needs this in batch mode. */
1605 #endif /* HAVE_W32NOTIFY */
1607 #ifdef HAVE_WINDOW_SYSTEM
1609 #endif /* HAVE_WINDOW_SYSTEM */
1617 /* Handle -l loadup, args passed by Makefile. */
1618 if (argmatch (argv
, argc
, "-l", "--load", 3, &file
, &skip_args
))
1621 char file_utf8
[MAX_UTF8_PATH
];
1623 if (filename_from_ansi (file
, file_utf8
) == 0)
1626 Vtop_level
= list2 (Qload
, build_unibyte_string (file
));
1628 /* Unless next switch is -nl, load "loadup.el" first thing. */
1630 Vtop_level
= list2 (Qload
, build_string ("loadup.el"));
1633 /* Set up for profiling. This is known to work on FreeBSD,
1634 GNU/Linux and MinGW. It might work on some other systems too.
1635 Give it a try and tell us if it works on your system. To compile
1636 for profiling, use the configure option --enable-profiling. */
1637 #if defined (__FreeBSD__) || defined (GNU_LINUX) || defined (__MINGW32__)
1642 extern unsigned char etext
asm ("etext");
1648 monstartup ((uintptr_t) __executable_start
, (uintptr_t) &etext
);
1657 /* Enter editor command loop. This never returns. */
1663 /* Sort the args so we can find the most important ones
1664 at the beginning of argv. */
1666 /* First, here's a table of all the standard options. */
1668 struct standard_args
1671 const char *longname
;
1676 static const struct standard_args standard_args
[] =
1678 { "-version", "--version", 150, 0 },
1679 { "-chdir", "--chdir", 130, 1 },
1680 { "-t", "--terminal", 120, 1 },
1681 { "-nw", "--no-window-system", 110, 0 },
1682 { "-nw", "--no-windows", 110, 0 },
1683 { "-batch", "--batch", 100, 0 },
1684 { "-script", "--script", 100, 1 },
1685 { "-daemon", "--daemon", 99, 0 },
1686 { "-help", "--help", 90, 0 },
1687 { "-nl", "--no-loadup", 70, 0 },
1688 { "-nsl", "--no-site-lisp", 65, 0 },
1689 { "-no-build-details", "--no-build-details", 63, 0 },
1690 /* -d must come last before the options handled in startup.el. */
1691 { "-d", "--display", 60, 1 },
1692 { "-display", 0, 60, 1 },
1693 /* Now for the options handled in `command-line' (startup.el). */
1694 /* (Note that to imply -nsl, -Q is partially handled here.) */
1695 { "-Q", "--quick", 55, 0 },
1696 { "-quick", 0, 55, 0 },
1697 { "-q", "--no-init-file", 50, 0 },
1698 { "-no-init-file", 0, 50, 0 },
1699 { "-no-x-resources", "--no-x-resources", 40, 0 },
1700 { "-no-site-file", "--no-site-file", 40, 0 },
1701 { "-u", "--user", 30, 1 },
1702 { "-user", 0, 30, 1 },
1703 { "-debug-init", "--debug-init", 20, 0 },
1704 { "-iconic", "--iconic", 15, 0 },
1705 { "-D", "--basic-display", 12, 0},
1706 { "-basic-display", 0, 12, 0},
1707 { "-nbc", "--no-blinking-cursor", 12, 0 },
1708 /* Now for the options handled in `command-line-1' (startup.el). */
1709 { "-nbi", "--no-bitmap-icon", 10, 0 },
1710 { "-bg", "--background-color", 10, 1 },
1711 { "-background", 0, 10, 1 },
1712 { "-fg", "--foreground-color", 10, 1 },
1713 { "-foreground", 0, 10, 1 },
1714 { "-bd", "--border-color", 10, 1 },
1715 { "-bw", "--border-width", 10, 1 },
1716 { "-ib", "--internal-border", 10, 1 },
1717 { "-ms", "--mouse-color", 10, 1 },
1718 { "-cr", "--cursor-color", 10, 1 },
1719 { "-fn", "--font", 10, 1 },
1720 { "-font", 0, 10, 1 },
1721 { "-fs", "--fullscreen", 10, 0 },
1722 { "-fw", "--fullwidth", 10, 0 },
1723 { "-fh", "--fullheight", 10, 0 },
1724 { "-mm", "--maximized", 10, 0 },
1725 { "-g", "--geometry", 10, 1 },
1726 { "-geometry", 0, 10, 1 },
1727 { "-T", "--title", 10, 1 },
1728 { "-title", 0, 10, 1 },
1729 { "-name", "--name", 10, 1 },
1730 { "-xrm", "--xrm", 10, 1 },
1731 { "-parent-id", "--parent-id", 10, 1 },
1732 { "-r", "--reverse-video", 5, 0 },
1734 { "-reverse", 0, 5, 0 },
1735 { "-hb", "--horizontal-scroll-bars", 5, 0 },
1736 { "-vb", "--vertical-scroll-bars", 5, 0 },
1737 { "-color", "--color", 5, 0},
1738 { "-no-splash", "--no-splash", 3, 0 },
1739 { "-no-desktop", "--no-desktop", 3, 0 },
1741 { "-NSAutoLaunch", 0, 5, 1 },
1742 { "-NXAutoLaunch", 0, 5, 1 },
1743 { "-_NSMachLaunch", 0, 85, 1 },
1744 { "-MachLaunch", 0, 85, 1 },
1745 { "-macosx", 0, 85, 0 },
1746 { "-NSHost", 0, 85, 1 },
1748 /* These have the same priority as ordinary file name args,
1749 so they are not reordered with respect to those. */
1750 { "-L", "--directory", 0, 1 },
1751 { "-directory", 0, 0, 1 },
1752 { "-l", "--load", 0, 1 },
1753 { "-load", 0, 0, 1 },
1754 /* This has no longname, because using --scriptload confuses sort_args,
1755 because then the --script long option seems to match twice; ie
1756 you can't have a long option which is a prefix of another long
1757 option. In any case, this is entirely an internal option. */
1758 { "-scriptload", NULL
, 0, 1 },
1759 { "-f", "--funcall", 0, 1 },
1760 { "-funcall", 0, 0, 1 },
1761 { "-eval", "--eval", 0, 1 },
1762 { "-execute", "--execute", 0, 1 },
1763 { "-find-file", "--find-file", 0, 1 },
1764 { "-visit", "--visit", 0, 1 },
1765 { "-file", "--file", 0, 1 },
1766 { "-insert", "--insert", 0, 1 },
1768 { "-NXOpen", 0, 0, 1 },
1769 { "-NXOpenTemp", 0, 0, 1 },
1770 { "-NSOpen", 0, 0, 1 },
1771 { "-NSOpenTemp", 0, 0, 1 },
1772 { "-GSFilePath", 0, 0, 1 },
1774 /* This should be processed after ordinary file name args and the like. */
1775 { "-kill", "--kill", -10, 0 },
1778 /* Reorder the elements of ARGV (assumed to have ARGC elements)
1779 so that the highest priority ones come first.
1780 Do not change the order of elements of equal priority.
1781 If an option takes an argument, keep it and its argument together.
1783 If an option that takes no argument appears more
1784 than once, eliminate all but one copy of it. */
1787 sort_args (int argc
, char **argv
)
1789 char **new = xmalloc (argc
* sizeof *new);
1790 /* For each element of argv,
1791 the corresponding element of options is:
1792 0 for an option that takes no arguments,
1793 1 for an option that takes one argument, etc.
1794 -1 for an ordinary non-option argument. */
1795 int *options
= xnmalloc (argc
, sizeof *options
);
1796 int *priority
= xnmalloc (argc
, sizeof *priority
);
1798 int incoming_used
= 1;
1802 /* Categorize all the options,
1803 and figure out which argv elts are option arguments. */
1804 for (from
= 1; from
< argc
; from
++)
1808 if (argv
[from
][0] == '-')
1812 /* If we have found "--", don't consider
1813 any more arguments as options. */
1814 if (argv
[from
][1] == '-' && argv
[from
][2] == 0)
1816 /* Leave the "--", and everything following it, at the end. */
1817 for (; from
< argc
; from
++)
1819 priority
[from
] = -100;
1825 /* Look for a match with a known old-fashioned option. */
1826 for (i
= 0; i
< ARRAYELTS (standard_args
); i
++)
1827 if (!strcmp (argv
[from
], standard_args
[i
].name
))
1829 options
[from
] = standard_args
[i
].nargs
;
1830 priority
[from
] = standard_args
[i
].priority
;
1831 if (from
+ standard_args
[i
].nargs
>= argc
)
1832 fatal ("Option '%s' requires an argument\n", argv
[from
]);
1833 from
+= standard_args
[i
].nargs
;
1837 /* Look for a match with a known long option.
1838 MATCH is -1 if no match so far, -2 if two or more matches so far,
1839 >= 0 (the table index of the match) if just one match so far. */
1840 if (argv
[from
][1] == '-')
1842 char const *equals
= strchr (argv
[from
], '=');
1844 equals
? equals
- argv
[from
] : strlen (argv
[from
]);
1848 for (i
= 0; i
< ARRAYELTS (standard_args
); i
++)
1849 if (standard_args
[i
].longname
1850 && !strncmp (argv
[from
], standard_args
[i
].longname
,
1859 /* If we found exactly one match, use that. */
1862 options
[from
] = standard_args
[match
].nargs
;
1863 priority
[from
] = standard_args
[match
].priority
;
1864 /* If --OPTION=VALUE syntax is used,
1865 this option uses just one argv element. */
1868 if (from
+ options
[from
] >= argc
)
1869 fatal ("Option '%s' requires an argument\n", argv
[from
]);
1870 from
+= options
[from
];
1872 /* FIXME When match < 0, shouldn't there be some error,
1873 or at least indication to the user that there was a
1880 /* Copy the arguments, in order of decreasing priority, to NEW. */
1882 while (incoming_used
< argc
)
1885 int best_priority
= -9999;
1887 /* Find the highest priority remaining option.
1888 If several have equal priority, take the first of them. */
1889 for (from
= 1; from
< argc
; from
++)
1891 if (argv
[from
] != 0 && priority
[from
] > best_priority
)
1893 best_priority
= priority
[from
];
1896 /* Skip option arguments--they are tied to the options. */
1897 if (options
[from
] > 0)
1898 from
+= options
[from
];
1904 /* Copy the highest priority remaining option, with its args, to NEW.
1905 Unless it is a duplicate of the previous one. */
1906 if (! (options
[best
] == 0
1907 && ! strcmp (new[to
- 1], argv
[best
])))
1909 new[to
++] = argv
[best
];
1910 for (i
= 0; i
< options
[best
]; i
++)
1911 new[to
++] = argv
[best
+ i
+ 1];
1914 incoming_used
+= 1 + (options
[best
] > 0 ? options
[best
] : 0);
1916 /* Clear out this option in ARGV. */
1918 for (i
= 0; i
< options
[best
]; i
++)
1919 argv
[best
+ i
+ 1] = 0;
1922 /* If duplicate options were deleted, fill up extra space with null ptrs. */
1926 memcpy (argv
, new, sizeof (char *) * argc
);
1933 DEFUN ("kill-emacs", Fkill_emacs
, Skill_emacs
, 0, 1, "P",
1934 doc
: /* Exit the Emacs job and kill it.
1935 If ARG is an integer, return ARG as the exit program code.
1936 If ARG is a string, stuff it as keyboard input.
1938 This function is called upon receipt of the signals SIGTERM
1939 or SIGHUP, and upon SIGINT in batch mode.
1941 The value of `kill-emacs-hook', if not void,
1942 is a list of functions (of no args),
1943 all of which are called before Emacs is actually killed. */
1944 attributes
: noreturn
)
1949 /* Fsignal calls emacs_abort () if it sees that waiting_for_input is
1951 waiting_for_input
= 0;
1952 run_hook (Qkill_emacs_hook
);
1954 #ifdef HAVE_X_WINDOWS
1955 /* Transfer any clipboards we own to the clipboard manager. */
1956 x_clipboard_manager_save_all ();
1959 shut_down_emacs (0, (STRINGP (arg
) && !feof (stdin
)) ? arg
: Qnil
);
1962 ns_release_autorelease_pool (ns_pool
);
1965 /* If we have an auto-save list file,
1966 kill it because we are exiting Emacs deliberately (not crashing).
1967 Do it after shut_down_emacs, which does an auto-save. */
1968 if (STRINGP (Vauto_save_list_file_name
))
1970 Lisp_Object listfile
;
1971 listfile
= Fexpand_file_name (Vauto_save_list_file_name
, Qnil
);
1972 unlink (SSDATA (listfile
));
1976 exit_code
= (XINT (arg
) < 0
1977 ? XINT (arg
) | INT_MIN
1978 : XINT (arg
) & INT_MAX
);
1980 exit_code
= EXIT_SUCCESS
;
1985 /* Perform an orderly shutdown of Emacs. Autosave any modified
1986 buffers, kill any child processes, clean up the terminal modes (if
1987 we're in the foreground), and other stuff like that. Don't perform
1988 any redisplay; this may be called when Emacs is shutting down in
1989 the background, or after its X connection has died.
1991 If SIG is a signal number, print a message for it.
1993 This is called by fatal signal handlers, X protocol error handlers,
1997 shut_down_emacs (int sig
, Lisp_Object stuff
)
1999 /* Prevent running of hooks from now on. */
2002 /* Don't update display from now on. */
2003 Vinhibit_redisplay
= Qt
;
2005 /* If we are controlling the terminal, reset terminal modes. */
2008 pid_t pgrp
= getpgrp ();
2009 pid_t tpgrp
= tcgetpgrp (0);
2010 if ((tpgrp
!= -1) && tpgrp
== pgrp
)
2012 reset_all_sys_modes ();
2013 if (sig
&& sig
!= SIGTERM
)
2015 static char const format
[] = "Fatal error %d: ";
2016 char buf
[sizeof format
- 2 + INT_STRLEN_BOUND (int)];
2017 int buflen
= sprintf (buf
, format
, sig
);
2018 char const *sig_desc
= safe_strsignal (sig
);
2019 emacs_write (STDERR_FILENO
, buf
, buflen
);
2020 emacs_write (STDERR_FILENO
, sig_desc
, strlen (sig_desc
));
2026 reset_all_sys_modes ();
2029 stuff_buffered_input (stuff
);
2031 inhibit_sentinels
= 1;
2032 kill_buffer_processes (Qnil
);
2033 Fdo_auto_save (Qt
, Qnil
);
2035 unlock_all_files ();
2037 /* There is a tendency for a SIGIO signal to arrive within exit,
2038 and cause a SIGHUP because the input descriptor is already closed. */
2041 /* Do this only if terminating normally, we want glyph matrices
2042 etc. in a core dump. */
2043 if (sig
== 0 || sig
== SIGTERM
)
2045 check_glyph_memory ();
2046 check_message_stack ();
2054 ns_term_shutdown (sig
);
2058 xml_cleanup_parser ();
2072 DEFUN ("dump-emacs", Fdump_emacs
, Sdump_emacs
, 2, 2, 0,
2073 doc
: /* Dump current state of Emacs into executable file FILENAME.
2074 Take symbols from SYMFILE (presumably the file you executed to run Emacs).
2075 This is used in the file `loadup.el' when building Emacs.
2077 You must run Emacs in batch mode in order to dump it. */)
2078 (Lisp_Object filename
, Lisp_Object symfile
)
2082 ptrdiff_t count
= SPECPDL_INDEX ();
2086 if (! noninteractive
)
2087 error ("Dumping Emacs works only in batch mode");
2090 error ("Emacs can be dumped only once");
2094 /* Warn if the gap between BSS end and heap start is larger than this. */
2095 # define MAX_HEAP_BSS_DIFF (1024*1024)
2097 if (heap_bss_diff
> MAX_HEAP_BSS_DIFF
)
2099 fprintf (stderr
, "**************************************************\n");
2100 fprintf (stderr
, "Warning: Your system has a gap between BSS and the\n");
2101 fprintf (stderr
, "heap (%"pMu
" bytes). This usually means that exec-shield\n",
2103 fprintf (stderr
, "or something similar is in effect. The dump may\n");
2104 fprintf (stderr
, "fail because of this. See the section about\n");
2105 fprintf (stderr
, "exec-shield in etc/PROBLEMS for more information.\n");
2106 fprintf (stderr
, "**************************************************\n");
2108 #endif /* GNU_LINUX */
2110 /* Bind `command-line-processed' to nil before dumping,
2111 so that the dumped Emacs will process its command line
2112 and set up to work with X windows if appropriate. */
2113 symbol
= intern ("command-line-processed");
2114 specbind (symbol
, Qnil
);
2116 CHECK_STRING (filename
);
2117 filename
= Fexpand_file_name (filename
, Qnil
);
2118 filename
= ENCODE_FILE (filename
);
2119 if (!NILP (symfile
))
2121 CHECK_STRING (symfile
);
2122 if (SCHARS (symfile
))
2124 symfile
= Fexpand_file_name (symfile
, Qnil
);
2125 symfile
= ENCODE_FILE (symfile
);
2130 Vpurify_flag
= Qnil
;
2132 #ifdef HYBRID_MALLOC
2134 static char const fmt
[] = "%d of %d static heap bytes used";
2135 char buf
[sizeof fmt
+ 2 * (INT_STRLEN_BOUND (int) - 2)];
2136 int max_usage
= max_bss_sbrk_ptr
- bss_sbrk_buffer
;
2137 sprintf (buf
, fmt
, max_usage
, STATIC_HEAP_SIZE
);
2138 /* Don't log messages, because at this point buffers cannot be created. */
2139 message1_nolog (buf
);
2144 /* Tell malloc where start of impure now is. */
2145 /* Also arrange for warnings when nearly out of space. */
2146 #if !defined SYSTEM_MALLOC && !defined HYBRID_MALLOC
2148 /* On Windows, this was done before dumping, and that once suffices.
2149 Meanwhile, my_edata is not valid on Windows. */
2150 memory_warnings (my_edata
, malloc_warning
);
2151 #endif /* not WINDOWSNT */
2152 #endif /* not SYSTEM_MALLOC and not HYBRID_MALLOC */
2154 alloc_unexec_pre ();
2156 unexec (SSDATA (filename
), !NILP (symfile
) ? SSDATA (symfile
) : 0);
2158 alloc_unexec_post ();
2161 Vlibrary_cache
= Qnil
;
2163 #ifdef HAVE_WINDOW_SYSTEM
2164 reset_image_types ();
2169 return unbind_to (count
, Qnil
);
2172 #endif /* not CANNOT_DUMP */
2175 /* Recover from setlocale (LC_ALL, ""). */
2179 /* The Emacs Lisp reader needs LC_NUMERIC to be "C",
2180 so that numbers are read and printed properly for Emacs Lisp. */
2181 setlocale (LC_NUMERIC
, "C");
2184 /* Set system locale CATEGORY, with previous locale *PLOCALE, to
2187 synchronize_locale (int category
, Lisp_Object
*plocale
, Lisp_Object desired_locale
)
2189 if (! EQ (*plocale
, desired_locale
))
2191 *plocale
= desired_locale
;
2193 /* Changing categories like LC_TIME usually requires specifying
2194 an encoding suitable for the new locale, but MS-Windows's
2195 'setlocale' will only switch the encoding when LC_ALL is
2196 specified. So we ignore CATEGORY, use LC_ALL instead, and
2197 then restore LC_NUMERIC to "C", so reading and printing
2198 numbers is unaffected. */
2199 setlocale (LC_ALL
, (STRINGP (desired_locale
)
2200 ? SSDATA (desired_locale
)
2203 #else /* !WINDOWSNT */
2204 setlocale (category
, (STRINGP (desired_locale
)
2205 ? SSDATA (desired_locale
)
2207 #endif /* !WINDOWSNT */
2211 /* Set system time locale to match Vsystem_time_locale, if possible. */
2213 synchronize_system_time_locale (void)
2215 synchronize_locale (LC_TIME
, &Vprevious_system_time_locale
,
2216 Vsystem_time_locale
);
2219 /* Set system messages locale to match Vsystem_messages_locale, if
2222 synchronize_system_messages_locale (void)
2225 synchronize_locale (LC_MESSAGES
, &Vprevious_system_messages_locale
,
2226 Vsystem_messages_locale
);
2229 #endif /* HAVE_SETLOCALE */
2231 /* Return a diagnostic string for ERROR_NUMBER, in the wording
2232 and encoding appropriate for the current locale. */
2234 emacs_strerror (int error_number
)
2236 synchronize_system_messages_locale ();
2237 return strerror (error_number
);
2242 decode_env_path (const char *evarname
, const char *defalt
, bool empty
)
2244 const char *path
, *p
;
2245 Lisp_Object lpath
, element
, tem
;
2246 /* Default is to use "." for empty path elements.
2247 But if argument EMPTY is true, use nil instead. */
2248 Lisp_Object empty_element
= empty
? Qnil
: build_string (".");
2251 static const char *emacs_dir_env
= "%emacs_dir%/";
2252 const size_t emacs_dir_len
= strlen (emacs_dir_env
);
2253 const char *edir
= egetenv ("emacs_dir");
2254 char emacs_dir
[MAX_UTF8_PATH
];
2256 /* egetenv looks in process-environment, which holds the variables
2257 in their original system-locale encoding. We need emacs_dir to
2260 filename_from_ansi (edir
, emacs_dir
);
2263 /* It's okay to use getenv here, because this function is only used
2264 to initialize variables when Emacs starts up, and isn't called
2267 path
= getenv (evarname
);
2278 /* Ensure values from the environment use the proper directory separator. */
2284 char *path_utf8
, *q
, *d
;
2287 /* Convert each element of PATH to UTF-8. */
2288 p
= path_copy
= alloca (strlen (path
) + 1);
2289 strcpy (path_copy
, path
);
2290 d
= path_utf8
= alloca (4 * strlen (path
) + 1);
2293 q
= _mbschr (p
, SEPCHAR
);
2296 cnv_result
= filename_from_ansi (p
, d
);
2301 /* If conversion of this PATH elements fails, make sure
2302 destination pointer will stay put, thus effectively
2303 ignoring the offending element. */
2304 if (cnv_result
== 0)
2310 else if (cnv_result
!= 0 && d
> path_utf8
)
2311 d
[-1] = '\0'; /* remove last semi-colon and null-terminate PATH */
2313 path_copy
= path_utf8
;
2315 path_copy
= alloca (strlen (path
) + 1);
2316 strcpy (path_copy
, path
);
2318 dostounix_filename (path_copy
);
2325 p
= strchr (path
, SEPCHAR
);
2327 p
= path
+ strlen (path
);
2328 element
= ((p
- path
) ? make_unibyte_string (path
, p
- path
)
2330 if (! NILP (element
))
2333 /* Relative file names in the default path are interpreted as
2334 being relative to $emacs_dir. */
2335 if (edir
&& defaulted
2336 && strncmp (path
, emacs_dir_env
, emacs_dir_len
) == 0)
2337 element
= Fexpand_file_name (Fsubstring
2339 make_number (emacs_dir_len
),
2341 build_unibyte_string (emacs_dir
));
2344 /* Add /: to the front of the name
2345 if it would otherwise be treated as magic. */
2346 tem
= Ffind_file_name_handler (element
, Qt
);
2348 /* However, if the handler says "I'm safe",
2349 don't bother adding /:. */
2353 prop
= Fget (tem
, intern ("safe-magic"));
2360 AUTO_STRING (slash_colon
, "/:");
2361 element
= concat2 (slash_colon
, element
);
2363 } /* !NILP (element) */
2365 lpath
= Fcons (element
, lpath
);
2371 return Fnreverse (lpath
);
2374 DEFUN ("daemonp", Fdaemonp
, Sdaemonp
, 0, 0, 0,
2375 doc
: /* Return non-nil if the current emacs process is a daemon.
2376 If the daemon was given a name argument, return that name. */)
2381 return build_string (daemon_name
);
2388 DEFUN ("daemon-initialized", Fdaemon_initialized
, Sdaemon_initialized
, 0, 0, 0,
2389 doc
: /* Mark the Emacs daemon as being initialized.
2390 This finishes the daemonization process by doing the other half of detaching
2391 from the parent process and its tty file descriptors. */)
2397 error ("This function can only be called if emacs is run as a daemon");
2399 if (!DAEMON_RUNNING
)
2400 error ("The daemon has already been initialized");
2402 if (NILP (Vafter_init_time
))
2403 error ("This function can only be called after loading the init files");
2407 /* Get rid of stdin, stdout and stderr. */
2408 nfd
= emacs_open ("/dev/null", O_RDWR
, 0);
2410 err
|= dup2 (nfd
, STDIN_FILENO
) < 0;
2411 err
|= dup2 (nfd
, STDOUT_FILENO
) < 0;
2412 err
|= dup2 (nfd
, STDERR_FILENO
) < 0;
2413 err
|= emacs_close (nfd
) != 0;
2415 /* Closing the pipe will notify the parent that it can exit.
2416 FIXME: In case some other process inherited the pipe, closing it here
2417 won't notify the parent because it's still open elsewhere, so we
2418 additionally send a byte, just to make sure the parent really exits.
2419 Instead, we should probably close the pipe in start-process and
2420 call-process to make sure the pipe is never inherited by
2422 err
|= write (daemon_pipe
[1], "\n", 1) < 0;
2423 err
|= emacs_close (daemon_pipe
[1]) != 0;
2424 /* Set it to an invalid value so we know we've already run this function. */
2425 daemon_pipe
[1] = -1;
2426 #else /* WINDOWSNT */
2427 /* Signal the waiting emacsclient process. */
2428 err
|= SetEvent (w32_daemon_event
) == 0;
2429 err
|= CloseHandle (w32_daemon_event
) == 0;
2430 /* Set it to an invalid value so we know we've already run this function. */
2431 w32_daemon_event
= INVALID_HANDLE_VALUE
;
2435 error ("I/O error during daemon initialization");
2440 syms_of_emacs (void)
2442 DEFSYM (Qfile_name_handler_alist
, "file-name-handler-alist");
2443 DEFSYM (Qrisky_local_variable
, "risky-local-variable");
2444 DEFSYM (Qkill_emacs
, "kill-emacs");
2445 DEFSYM (Qkill_emacs_hook
, "kill-emacs-hook");
2448 defsubr (&Sdump_emacs
);
2451 defsubr (&Skill_emacs
);
2453 defsubr (&Sinvocation_name
);
2454 defsubr (&Sinvocation_directory
);
2455 defsubr (&Sdaemonp
);
2456 defsubr (&Sdaemon_initialized
);
2458 DEFVAR_LISP ("command-line-args", Vcommand_line_args
,
2459 doc
: /* Args passed by shell to Emacs, as a list of strings.
2460 Many arguments are deleted from the list as they are processed. */);
2462 DEFVAR_LISP ("system-type", Vsystem_type
,
2463 doc
: /* The value is a symbol indicating the type of operating system you are using.
2465 `gnu' compiled for a GNU Hurd system.
2466 `gnu/linux' compiled for a GNU/Linux system.
2467 `gnu/kfreebsd' compiled for a GNU system with a FreeBSD kernel.
2468 `darwin' compiled for Darwin (GNU-Darwin, Mac OS X, ...).
2469 `ms-dos' compiled as an MS-DOS application.
2470 `windows-nt' compiled as a native W32 application.
2471 `cygwin' compiled using the Cygwin library.
2472 Anything else (in Emacs 26, the possibilities are: aix, berkeley-unix,
2473 hpux, usg-unix-v) indicates some sort of Unix system. */);
2474 Vsystem_type
= intern_c_string (SYSTEM_TYPE
);
2475 /* See configure.ac for the possible SYSTEM_TYPEs. */
2477 DEFVAR_LISP ("system-configuration", Vsystem_configuration
,
2478 doc
: /* Value is string indicating configuration Emacs was built for. */);
2479 Vsystem_configuration
= build_string (EMACS_CONFIGURATION
);
2481 DEFVAR_LISP ("system-configuration-options", Vsystem_configuration_options
,
2482 doc
: /* String containing the configuration options Emacs was built with. */);
2483 Vsystem_configuration_options
= build_string (EMACS_CONFIG_OPTIONS
);
2485 DEFVAR_LISP ("system-configuration-features", Vsystem_configuration_features
,
2486 doc
: /* String listing some of the main features this Emacs was compiled with.
2487 An element of the form \"FOO\" generally means that HAVE_FOO was
2488 defined during the build.
2490 This is mainly intended for diagnostic purposes in bug reports.
2491 Don't rely on it for testing whether a feature you want to use is available. */);
2492 Vsystem_configuration_features
= build_string (EMACS_CONFIG_FEATURES
);
2494 DEFVAR_BOOL ("noninteractive", noninteractive1
,
2495 doc
: /* Non-nil means Emacs is running without interactive terminal. */);
2497 DEFVAR_LISP ("kill-emacs-hook", Vkill_emacs_hook
,
2498 doc
: /* Hook run when `kill-emacs' is called.
2499 Since `kill-emacs' may be invoked when the terminal is disconnected (or
2500 in other similar situations), functions placed on this hook should not
2501 expect to be able to interact with the user. To ask for confirmation,
2502 see `kill-emacs-query-functions' instead.
2504 Before Emacs 24.1, the hook was not run in batch mode, i.e., if
2505 `noninteractive' was non-nil. */);
2506 Vkill_emacs_hook
= Qnil
;
2508 DEFVAR_LISP ("path-separator", Vpath_separator
,
2509 doc
: /* String containing the character that separates directories in
2510 search paths, such as PATH and other similar environment variables. */);
2513 Vpath_separator
= make_string (&c
, 1);
2516 DEFVAR_LISP ("invocation-name", Vinvocation_name
,
2517 doc
: /* The program name that was used to run Emacs.
2518 Any directory names are omitted. */);
2520 DEFVAR_LISP ("invocation-directory", Vinvocation_directory
,
2521 doc
: /* The directory in which the Emacs executable was found, to run it.
2522 The value is nil if that directory's name is not known. */);
2524 DEFVAR_LISP ("installation-directory", Vinstallation_directory
,
2525 doc
: /* A directory within which to look for the `lib-src' and `etc' directories.
2526 In an installed Emacs, this is normally nil. It is non-nil if
2527 both `lib-src' (on MS-DOS, `info') and `etc' directories are found
2528 within the variable `invocation-directory' or its parent. For example,
2529 this is the case when running an uninstalled Emacs executable from its
2530 build directory. */);
2531 Vinstallation_directory
= Qnil
;
2533 DEFVAR_LISP ("system-messages-locale", Vsystem_messages_locale
,
2534 doc
: /* System locale for messages. */);
2535 Vsystem_messages_locale
= Qnil
;
2537 DEFVAR_LISP ("previous-system-messages-locale",
2538 Vprevious_system_messages_locale
,
2539 doc
: /* Most recently used system locale for messages. */);
2540 Vprevious_system_messages_locale
= Qnil
;
2542 DEFVAR_LISP ("system-time-locale", Vsystem_time_locale
,
2543 doc
: /* System locale for time. */);
2544 Vsystem_time_locale
= Qnil
;
2546 DEFVAR_LISP ("previous-system-time-locale", Vprevious_system_time_locale
,
2547 doc
: /* Most recently used system locale for time. */);
2548 Vprevious_system_time_locale
= Qnil
;
2550 DEFVAR_LISP ("before-init-time", Vbefore_init_time
,
2551 doc
: /* Value of `current-time' before Emacs begins initialization. */);
2552 Vbefore_init_time
= Qnil
;
2554 DEFVAR_LISP ("after-init-time", Vafter_init_time
,
2555 doc
: /* Value of `current-time' after loading the init files.
2556 This is nil during initialization. */);
2557 Vafter_init_time
= Qnil
;
2559 DEFVAR_BOOL ("inhibit-x-resources", inhibit_x_resources
,
2560 doc
: /* If non-nil, X resources, Windows Registry settings, and NS defaults are not used. */);
2561 inhibit_x_resources
= 0;
2563 DEFVAR_LISP ("emacs-copyright", Vemacs_copyright
,
2564 doc
: /* Short copyright string for this version of Emacs. */);
2565 Vemacs_copyright
= build_string (emacs_copyright
);
2567 DEFVAR_LISP ("emacs-version", Vemacs_version
,
2568 doc
: /* Version numbers of this version of Emacs. */);
2569 Vemacs_version
= build_string (emacs_version
);
2571 DEFVAR_LISP ("report-emacs-bug-address", Vreport_emacs_bug_address
,
2572 doc
: /* Address of mailing list for GNU Emacs bugs. */);
2573 Vreport_emacs_bug_address
= build_string (emacs_bugreport
);
2575 DEFVAR_LISP ("dynamic-library-alist", Vdynamic_library_alist
,
2576 doc
: /* Alist of dynamic libraries vs external files implementing them.
2577 Each element is a list (LIBRARY FILE...), where the car is a symbol
2578 representing a supported external library, and the rest are strings giving
2579 alternate filenames for that library.
2581 Emacs tries to load the library from the files in the order they appear on
2582 the list; if none is loaded, the running session of Emacs won't have access
2585 Note that image types `pbm' and `xbm' do not need entries in this variable
2586 because they do not depend on external libraries and are always available.
2588 Also note that this is not a generic facility for accessing external
2589 libraries; only those already known by Emacs will be loaded. */);
2590 Vdynamic_library_alist
= Qnil
;
2591 Fput (intern_c_string ("dynamic-library-alist"), Qrisky_local_variable
, Qt
);
2594 Vlibrary_cache
= Qnil
;
2595 staticpro (&Vlibrary_cache
);