1 /* Fully extensible Emacs, running on Unix, intended for GNU.
3 Copyright (C) 1985-1987, 1993-1995, 1997-1999, 2001-2015 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
11 (at your option) any later version.
13 GNU Emacs is distributed in the hope that it will be useful,
14 but WITHOUT ANY WARRANTY; without even the implied warranty of
15 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
16 GNU General Public License for more details.
18 You should have received a copy of the GNU General Public License
19 along with GNU Emacs. If not, see <http://www.gnu.org/licenses/>. */
21 #define INLINE EXTERN_INLINE
27 #include <sys/types.h>
31 #include <close-stream.h>
38 #include <sys/socket.h>
44 #if defined WINDOWSNT || defined HAVE_NTGUI
45 #include "w32select.h"
47 #include "w32common.h"
55 #include <binary-io.h>
58 #ifdef HAVE_WINDOW_SYSTEM
60 #endif /* HAVE_WINDOW_SYSTEM */
63 #include "intervals.h"
64 #include "character.h"
70 #include "blockinput.h"
71 #include "syssignal.h"
74 #include "termhooks.h"
79 #include "composite.h"
80 #include "dispextern.h"
83 #include "sysselect.h"
88 #if (defined PROFILING \
89 && (defined __FreeBSD__ || defined GNU_LINUX || defined __MINGW32__))
90 # include <sys/gmon.h>
91 extern void moncontrol (int mode
);
102 #ifdef HAVE_SETRLIMIT
103 #include <sys/time.h>
104 #include <sys/resource.h>
107 #ifdef HAVE_PERSONALITY_LINUX32
108 #include <sys/personality.h>
111 static const char emacs_version
[] = PACKAGE_VERSION
;
112 static const char emacs_copyright
[] = COPYRIGHT
;
113 static const char emacs_bugreport
[] = PACKAGE_BUGREPORT
;
115 /* Empty lisp strings. To avoid having to build any others. */
116 Lisp_Object empty_unibyte_string
, empty_multibyte_string
;
119 /* Cache for externally loaded libraries. */
120 Lisp_Object Vlibrary_cache
;
123 /* Set after Emacs has started up the first time.
124 Prevents reinitialization of the Lisp world and keymaps
125 on subsequent starts. */
128 /* Set to true if this instance of Emacs might dump. */
132 extern void unexec_init_emacs_zone (void);
135 #ifdef DOUG_LEA_MALLOC
136 /* Preserves a pointer to the memory allocated that copies that
137 static data inside glibc's malloc. */
138 static void *malloc_state_ptr
;
139 /* From glibc, a routine that returns a copy of the malloc internal state. */
140 extern void *malloc_get_state (void);
141 /* From glibc, a routine that overwrites the malloc internal state. */
142 extern int malloc_set_state (void *);
143 /* True if the MALLOC_CHECK_ environment variable was set while
144 dumping. Used to work around a bug in glibc's malloc. */
145 static bool malloc_using_checking
;
146 #elif defined HAVE_PTHREAD && !defined SYSTEM_MALLOC && !defined HYBRID_MALLOC
147 extern void malloc_enable_thread (void);
150 /* If true, Emacs should not attempt to use a window-specific code,
151 but instead should use the virtual terminal under which it was started. */
152 bool inhibit_window_system
;
154 /* If true, a filter or a sentinel is running. Tested to save the match
155 data on the first attempt to change it inside asynchronous code. */
156 bool running_asynch_code
;
158 #if defined (HAVE_X_WINDOWS) || defined (HAVE_NS)
159 /* If true, -d was specified, meaning we're using some window system. */
163 /* An address near the bottom of the stack.
164 Tells GC how to save a copy of the stack. */
167 #if defined (DOUG_LEA_MALLOC) || defined (GNU_LINUX)
168 /* The address where the heap starts (from the first sbrk (0) call). */
169 static void *my_heap_start
;
173 /* The gap between BSS end and heap start as far as we can tell. */
174 static uprintmax_t heap_bss_diff
;
177 /* To run as a daemon under Cocoa or Windows, we must do a fork+exec,
180 On Cocoa, CoreFoundation lib fails in forked process:
181 http://developer.apple.com/ReleaseNotes/
182 CoreFoundation/CoreFoundation.html)
184 On Windows, a Cygwin fork child cannot access the USER subsystem.
186 We mark being in the exec'd process by a daemon name argument of
187 form "--daemon=\nFD0,FD1\nNAME" where FD are the pipe file descriptors,
188 NAME is the original daemon name, if any. */
189 #if defined NS_IMPL_COCOA || (defined HAVE_NTGUI && defined CYGWIN)
190 # define DAEMON_MUST_EXEC
193 /* True means running Emacs without interactive terminal. */
196 /* True means remove site-lisp directories from load-path. */
199 /* Name for the server started by the daemon.*/
200 static char *daemon_name
;
203 /* Pipe used to send exit notification to the daemon parent at
207 HANDLE w32_daemon_event
;
210 /* Save argv and argc. */
214 static void sort_args (int argc
, char **argv
);
215 static void syms_of_emacs (void);
217 /* C99 needs each string to be at most 4095 characters, and the usage
218 strings below are split to not overflow this limit. */
219 static char const *const usage_message
[] =
222 Run Emacs, the extensible, customizable, self-documenting real-time\n\
223 display editor. The recommended way to start Emacs for normal editing\n\
224 is with no options at all.\n\
226 Run M-x info RET m emacs RET m emacs invocation RET inside Emacs to\n\
227 read the main documentation for these command-line arguments.\n\
229 Initialization options:\n\
233 --batch do not do interactive display; implies -q\n\
234 --chdir DIR change to directory DIR\n\
235 --daemon start a server in the background\n\
236 --debug-init enable Emacs Lisp debugger for init file\n\
237 --display, -d DISPLAY use X server DISPLAY\n\
240 --no-desktop do not load a saved desktop\n\
241 --no-init-file, -q load neither ~/.emacs nor default.el\n\
242 --no-loadup, -nl do not load loadup.el into bare Emacs\n\
243 --no-site-file do not load site-start.el\n\
244 --no-x-resources do not load X resources\n\
245 --no-site-lisp, -nsl do not add site-lisp directories to load-path\n\
246 --no-splash do not display a splash screen on startup\n\
247 --no-window-system, -nw do not communicate with X, ignoring $DISPLAY\n\
250 --quick, -Q equivalent to:\n\
251 -q --no-site-file --no-site-lisp --no-splash\n\
253 --script FILE run FILE as an Emacs Lisp script\n\
254 --terminal, -t DEVICE use DEVICE for terminal I/O\n\
255 --user, -u USER load ~USER/.emacs instead of your own\n\
261 FILE visit FILE using find-file\n\
262 +LINE go to line LINE in next FILE\n\
263 +LINE:COLUMN go to line LINE, column COLUMN, in next FILE\n\
264 --directory, -L DIR prepend DIR to load-path (with :DIR, append DIR)\n\
265 --eval EXPR evaluate Emacs Lisp expression EXPR\n\
266 --execute EXPR evaluate Emacs Lisp expression EXPR\n\
269 --file FILE visit FILE using find-file\n\
270 --find-file FILE visit FILE using find-file\n\
271 --funcall, -f FUNC call Emacs Lisp function FUNC with no arguments\n\
272 --insert FILE insert contents of FILE into current buffer\n\
273 --kill exit without asking for confirmation\n\
274 --load, -l FILE load Emacs Lisp FILE using the load function\n\
275 --visit FILE visit FILE using find-file\n\
281 --background-color, -bg COLOR window background color\n\
282 --basic-display, -D disable many display features;\n\
283 used for debugging Emacs\n\
284 --border-color, -bd COLOR main border color\n\
285 --border-width, -bw WIDTH width of main border\n\
288 --color, --color=MODE override color mode for character terminals;\n\
289 MODE defaults to `auto', and\n\
290 can also be `never', `always',\n\
291 or a mode name like `ansi8'\n\
292 --cursor-color, -cr COLOR color of the Emacs cursor indicating point\n\
293 --font, -fn FONT default font; must be fixed-width\n\
294 --foreground-color, -fg COLOR window foreground color\n\
297 --fullheight, -fh make the first frame high as the screen\n\
298 --fullscreen, -fs make the first frame fullscreen\n\
299 --fullwidth, -fw make the first frame wide as the screen\n\
300 --maximized, -mm make the first frame maximized\n\
301 --geometry, -g GEOMETRY window geometry\n\
304 --no-bitmap-icon, -nbi do not use picture of gnu for Emacs icon\n\
305 --iconic start Emacs in iconified state\n\
306 --internal-border, -ib WIDTH width between text and main border\n\
307 --line-spacing, -lsp PIXELS additional space to put between lines\n\
308 --mouse-color, -ms COLOR mouse cursor color in Emacs window\n\
309 --name NAME title for initial Emacs frame\n\
312 --no-blinking-cursor, -nbc disable blinking cursor\n\
313 --reverse-video, -r, -rv switch foreground and background\n\
314 --title, -T TITLE title for initial Emacs frame\n\
315 --vertical-scroll-bars, -vb enable vertical scroll bars\n\
316 --xrm XRESOURCES set additional X resources\n\
317 --parent-id XID set parent window\n\
318 --help display this help and exit\n\
319 --version output version information and exit\n\
323 You can generally also specify long option names with a single -; for\n\
324 example, -batch as well as --batch. You can use any unambiguous\n\
325 abbreviation for a --option.\n\
327 Various environment variables and window system resources also affect\n\
328 the operation of Emacs. See the main documentation.\n\
330 Report bugs to " PACKAGE_BUGREPORT
". First, please see the Bugs\n\
331 section of the Emacs manual or the file BUGS.\n"
335 /* True if handling a fatal error already. */
336 bool fatal_error_in_progress
;
339 /* NS autrelease pool, for memory management. */
340 static void *ns_pool
;
345 setlocale (int cat
, char const *locale
)
351 /* True if the current system locale uses UTF-8 encoding. */
357 mbstate_t mbs
= { 0 };
358 return mbrtowc (&wc
, "\xc4\x80", 2, &mbs
) == 2 && wc
== 0x100;
365 /* Report a fatal error due to signal SIG, output a backtrace of at
366 most BACKTRACE_LIMIT lines, and exit. */
368 terminate_due_to_signal (int sig
, int backtrace_limit
)
370 signal (sig
, SIG_DFL
);
372 /* If fatal error occurs in code below, avoid infinite recursion. */
373 if (! fatal_error_in_progress
)
375 fatal_error_in_progress
= 1;
377 totally_unblock_input ();
378 if (sig
== SIGTERM
|| sig
== SIGHUP
|| sig
== SIGINT
)
379 Fkill_emacs (make_number (sig
));
381 shut_down_emacs (sig
, Qnil
);
382 emacs_backtrace (backtrace_limit
);
385 /* Signal the same code; this time it will really be fatal.
386 Since we're in a signal handler, the signal is blocked, so we
387 have to unblock it if we want to really receive it. */
391 sigemptyset (&unblocked
);
392 sigaddset (&unblocked
, sig
);
393 pthread_sigmask (SIG_UNBLOCK
, &unblocked
, 0);
399 /* This shouldn't be executed, but it prevents a warning. */
403 /* Code for dealing with Lisp access to the Unix command line. */
406 init_cmdargs (int argc
, char **argv
, int skip_args
, char *original_pwd
)
409 Lisp_Object name
, dir
, handler
;
410 ptrdiff_t count
= SPECPDL_INDEX ();
411 Lisp_Object raw_name
;
412 AUTO_STRING (slash_colon
, "/:");
418 /* Must use argv[0] converted to UTF-8, as it begets many standard
419 file and directory names. */
421 char argv0
[MAX_UTF8_PATH
];
423 if (filename_from_ansi (argv
[0], argv0
) == 0)
424 raw_name
= build_unibyte_string (argv0
);
426 raw_name
= build_unibyte_string (argv
[0]);
429 raw_name
= build_unibyte_string (argv
[0]);
432 /* Add /: to the front of the name
433 if it would otherwise be treated as magic. */
434 handler
= Ffind_file_name_handler (raw_name
, Qt
);
435 if (! NILP (handler
))
436 raw_name
= concat2 (slash_colon
, raw_name
);
438 Vinvocation_name
= Ffile_name_nondirectory (raw_name
);
439 Vinvocation_directory
= Ffile_name_directory (raw_name
);
441 /* If we got no directory in argv[0], search PATH to find where
442 Emacs actually came from. */
443 if (NILP (Vinvocation_directory
))
446 int yes
= openp (Vexec_path
, Vinvocation_name
,
447 Vexec_suffixes
, &found
, make_number (X_OK
), false);
450 /* Add /: to the front of the name
451 if it would otherwise be treated as magic. */
452 handler
= Ffind_file_name_handler (found
, Qt
);
453 if (! NILP (handler
))
454 found
= concat2 (slash_colon
, found
);
455 Vinvocation_directory
= Ffile_name_directory (found
);
459 if (!NILP (Vinvocation_directory
)
460 && NILP (Ffile_name_absolute_p (Vinvocation_directory
)))
461 /* Emacs was started with relative path, like ./emacs.
465 original_pwd
? build_unibyte_string (original_pwd
) : Qnil
;
467 Vinvocation_directory
= Fexpand_file_name (Vinvocation_directory
, odir
);
470 Vinstallation_directory
= Qnil
;
472 if (!NILP (Vinvocation_directory
))
474 dir
= Vinvocation_directory
;
476 /* If we are running from the build directory, set DIR to the
477 src subdirectory of the Emacs tree, like on Posix
479 if (SBYTES (dir
) > sizeof ("/i386/") - 1
480 && 0 == strcmp (SSDATA (dir
) + SBYTES (dir
) - sizeof ("/i386/") + 1,
482 dir
= Fexpand_file_name (build_string ("../.."), dir
);
483 #else /* !WINDOWSNT */
485 name
= Fexpand_file_name (Vinvocation_name
, dir
);
488 Lisp_Object tem
, lib_src_exists
;
489 Lisp_Object etc_exists
, info_exists
;
491 /* See if dir contains subdirs for use by Emacs.
492 Check for the ones that would exist in a build directory,
493 not including lisp and info. */
494 tem
= Fexpand_file_name (build_string ("lib-src"), dir
);
495 lib_src_exists
= Ffile_exists_p (tem
);
498 /* MSDOS installations frequently remove lib-src, but we still
499 must set installation-directory, or else info won't find
500 its files (it uses the value of installation-directory). */
501 tem
= Fexpand_file_name (build_string ("info"), dir
);
502 info_exists
= Ffile_exists_p (tem
);
507 if (!NILP (lib_src_exists
) || !NILP (info_exists
))
509 tem
= Fexpand_file_name (build_string ("etc"), dir
);
510 etc_exists
= Ffile_exists_p (tem
);
511 if (!NILP (etc_exists
))
513 Vinstallation_directory
514 = Ffile_name_as_directory (dir
);
519 /* See if dir's parent contains those subdirs. */
520 tem
= Fexpand_file_name (build_string ("../lib-src"), dir
);
521 lib_src_exists
= Ffile_exists_p (tem
);
525 /* See the MSDOS commentary above. */
526 tem
= Fexpand_file_name (build_string ("../info"), dir
);
527 info_exists
= Ffile_exists_p (tem
);
532 if (!NILP (lib_src_exists
) || !NILP (info_exists
))
534 tem
= Fexpand_file_name (build_string ("../etc"), dir
);
535 etc_exists
= Ffile_exists_p (tem
);
536 if (!NILP (etc_exists
))
538 tem
= Fexpand_file_name (build_string (".."), dir
);
539 Vinstallation_directory
540 = Ffile_name_as_directory (tem
);
545 /* If the Emacs executable is actually a link,
546 next try the dir that the link points into. */
547 tem
= Ffile_symlink_p (name
);
550 name
= Fexpand_file_name (tem
, dir
);
551 dir
= Ffile_name_directory (name
);
558 Vcommand_line_args
= Qnil
;
560 for (i
= argc
- 1; i
>= 0; i
--)
562 if (i
== 0 || i
> skip_args
)
563 /* For the moment, we keep arguments as is in unibyte strings.
564 They are decoded in the function command-line after we know
565 locale-coding-system. */
567 = Fcons (build_unibyte_string (argv
[i
]), Vcommand_line_args
);
570 unbind_to (count
, Qnil
);
573 DEFUN ("invocation-name", Finvocation_name
, Sinvocation_name
, 0, 0, 0,
574 doc
: /* Return the program name that was used to run Emacs.
575 Any directory names are omitted. */)
578 return Fcopy_sequence (Vinvocation_name
);
581 DEFUN ("invocation-directory", Finvocation_directory
, Sinvocation_directory
,
583 doc
: /* Return the directory name in which the Emacs executable was located. */)
586 return Fcopy_sequence (Vinvocation_directory
);
590 /* Test whether the next argument in ARGV matches SSTR or a prefix of
591 LSTR (at least MINLEN characters). If so, then if VALPTR is non-null
592 (the argument is supposed to have a value) store in *VALPTR either
593 the next argument or the portion of this one after the equal sign.
594 ARGV is read starting at position *SKIPPTR; this index is advanced
595 by the number of arguments used.
597 Too bad we can't just use getopt for all of this, but we don't have
598 enough information to do it right. */
601 argmatch (char **argv
, int argc
, const char *sstr
, const char *lstr
,
602 int minlen
, char **valptr
, int *skipptr
)
608 /* Don't access argv[argc]; give up in advance. */
609 if (argc
<= *skipptr
+ 1)
612 arg
= argv
[*skipptr
+1];
615 if (strcmp (arg
, sstr
) == 0)
619 *valptr
= argv
[*skipptr
+2];
626 arglen
= (valptr
!= NULL
&& (p
= strchr (arg
, '=')) != NULL
627 ? p
- arg
: strlen (arg
));
628 if (lstr
== 0 || arglen
< minlen
|| strncmp (arg
, lstr
, arglen
) != 0)
630 else if (valptr
== NULL
)
641 else if (argv
[*skipptr
+2] != NULL
)
643 *valptr
= argv
[*skipptr
+2];
653 #ifdef DOUG_LEA_MALLOC
655 /* malloc can be invoked even before main (e.g. by the dynamic
656 linker), so the dumped malloc state must be restored as early as
657 possible using this special hook. */
660 malloc_initialize_hook (void)
664 if (!malloc_using_checking
)
665 /* Work around a bug in glibc's malloc. MALLOC_CHECK_ must be
666 ignored if the heap to be restored was constructed without
667 malloc checking. Can't use unsetenv, since that calls malloc. */
671 for (p
= environ
; p
&& *p
; p
++)
672 if (strncmp (*p
, "MALLOC_CHECK_=", 14) == 0)
681 malloc_set_state (malloc_state_ptr
);
682 #ifndef XMALLOC_OVERRUN_CHECK
683 free (malloc_state_ptr
);
688 if (my_heap_start
== 0)
689 my_heap_start
= sbrk (0);
690 malloc_using_checking
= getenv ("MALLOC_CHECK_") != NULL
;
694 void (*__malloc_initialize_hook
) (void) EXTERNALLY_VISIBLE
= malloc_initialize_hook
;
696 #endif /* DOUG_LEA_MALLOC */
698 /* Close standard output and standard error, reporting any write
699 errors as best we can. This is intended for use with atexit. */
701 close_output_streams (void)
703 if (close_stream (stdout
) != 0)
705 emacs_perror ("Write error to standard output");
706 _exit (EXIT_FAILURE
);
709 if (close_stream (stderr
) != 0)
710 _exit (EXIT_FAILURE
);
715 main (int argc
, char **argv
)
720 char stack_bottom_variable
;
721 bool do_initial_setlocale
;
724 #ifdef HAVE_SETRLIMIT
730 #ifdef DAEMON_MUST_EXEC
735 /* If we use --chdir, this records the original directory. */
736 char *original_pwd
= 0;
743 might_dump
= !initialized
;
749 if (my_heap_start
== 0)
750 my_heap_start
= sbrk (0);
752 heap_bss_diff
= (char *)my_heap_start
- max (my_endbss
, my_endbss_static
);
756 #if defined WINDOWSNT || defined HAVE_NTGUI
757 /* Set global variables used to detect Windows version. Do this as
758 early as possible. (unexw32.c calls this function as well, but
759 the additional call here is harmless.) */
760 cache_system_info ();
762 /* On Windows 9X, we have to load UNICOWS.DLL as early as possible,
763 to have non-stub implementations of APIs we need to convert file
764 names between UTF-8 and the system's ANSI codepage. */
765 maybe_load_unicows_dll ();
769 #ifdef RUN_TIME_REMAP
771 run_time_remap (argv
[0]);
774 /* If using unexmacosx.c (set by s/darwin.h), we must do this. */
777 unexec_init_emacs_zone ();
780 atexit (close_output_streams
);
782 sort_args (argc
, argv
);
784 while (argv
[argc
]) argc
++;
786 if (argmatch (argv
, argc
, "-version", "--version", 3, NULL
, &skip_args
))
788 const char *version
, *copyright
;
791 Lisp_Object tem
, tem2
;
792 tem
= Fsymbol_value (intern_c_string ("emacs-version"));
793 tem2
= Fsymbol_value (intern_c_string ("emacs-copyright"));
796 fprintf (stderr
, "Invalid value of 'emacs-version'\n");
801 fprintf (stderr
, "Invalid value of 'emacs-copyright'\n");
806 version
= SSDATA (tem
);
807 copyright
= SSDATA (tem2
);
812 version
= emacs_version
;
813 copyright
= emacs_copyright
;
815 printf ("%s %s\n", PACKAGE_NAME
, version
);
816 printf ("%s\n", copyright
);
817 printf ("%s comes with ABSOLUTELY NO WARRANTY.\n", PACKAGE_NAME
);
818 printf ("You may redistribute copies of %s\n", PACKAGE_NAME
);
819 printf ("under the terms of the GNU General Public License.\n");
820 printf ("For more information about these matters, ");
821 printf ("see the file named COPYING.\n");
825 if (argmatch (argv
, argc
, "-chdir", "--chdir", 4, &ch_to_dir
, &skip_args
))
828 /* argv[] array is kept in its original ANSI codepage encoding,
829 we need to convert to UTF-8, for chdir to work. */
830 char newdir
[MAX_UTF8_PATH
];
832 filename_from_ansi (ch_to_dir
, newdir
);
835 original_pwd
= get_current_dir_name ();
836 if (chdir (ch_to_dir
) != 0)
838 fprintf (stderr
, "%s: Can't chdir to %s: %s\n",
839 argv
[0], ch_to_dir
, strerror (errno
));
844 dumping
= !initialized
&& (strcmp (argv
[argc
- 1], "dump") == 0
845 || strcmp (argv
[argc
- 1], "bootstrap") == 0);
847 #ifdef HAVE_PERSONALITY_LINUX32
848 if (dumping
&& ! getenv ("EMACS_HEAP_EXEC"))
850 /* Set this so we only do this once. */
851 xputenv ("EMACS_HEAP_EXEC=true");
853 /* A flag to turn off address randomization which is introduced
854 in linux kernel shipped with fedora core 4 */
855 #define ADD_NO_RANDOMIZE 0x0040000
856 personality (PER_LINUX32
| ADD_NO_RANDOMIZE
);
857 #undef ADD_NO_RANDOMIZE
859 execvp (argv
[0], argv
);
861 /* If the exec fails, try to dump anyway. */
862 emacs_perror (argv
[0]);
864 #endif /* HAVE_PERSONALITY_LINUX32 */
866 #if defined (HAVE_SETRLIMIT) && defined (RLIMIT_STACK) && !defined (CYGWIN)
867 /* Extend the stack space available. Don't do that if dumping,
868 since some systems (e.g. DJGPP) might define a smaller stack
869 limit at that time. And it's not needed on Cygwin, since emacs
870 is built with an 8MB stack. Moreover, the setrlimit call can
871 cause problems on Cygwin
872 (https://www.cygwin.com/ml/cygwin/2015-07/msg00096.html). */
875 && (!noninteractive
|| initialized
)
877 && !getrlimit (RLIMIT_STACK
, &rlim
))
880 /* Approximate the amount regex.c needs per unit of re_max_failures. */
881 int ratio
= 20 * sizeof (char *);
882 /* Then add 33% to cover the size of the smaller stacks that regex.c
883 successively allocates and discards, on its way to the maximum. */
885 /* Add in some extra to cover
886 what we're likely to use for other reasons. */
887 newlim
= re_max_failures
* ratio
+ 200000;
889 /* NetBSD (at least NetBSD 1.2G and former) has a bug in its
890 stack allocation routine for new process that the allocation
891 fails if stack limit is not on page boundary. So, round up the
892 new limit to page boundary. */
893 newlim
= (newlim
+ getpagesize () - 1) / getpagesize () * getpagesize ();
895 if (newlim
> rlim
.rlim_max
)
897 newlim
= rlim
.rlim_max
;
898 /* Don't let regex.c overflow the stack we have. */
899 re_max_failures
= (newlim
- 200000) / ratio
;
901 if (rlim
.rlim_cur
< newlim
)
902 rlim
.rlim_cur
= newlim
;
904 setrlimit (RLIMIT_STACK
, &rlim
);
906 #endif /* HAVE_SETRLIMIT and RLIMIT_STACK and not CYGWIN */
908 /* Record (approximately) where the stack begins. */
909 stack_bottom
= &stack_bottom_variable
;
913 emacs_backtrace (-1);
915 #if !defined SYSTEM_MALLOC && !defined HYBRID_MALLOC
916 /* Arrange to get warning messages as memory fills up. */
917 memory_warnings (0, malloc_warning
);
919 /* Call malloc at least once, to run malloc_initialize_hook.
920 Also call realloc and free for consistency. */
921 free (realloc (malloc (4), 4));
923 #endif /* not SYSTEM_MALLOC and not HYBRID_MALLOC */
926 SET_BINARY (fileno (stdin
));
928 SET_BINARY (fileno (stdout
));
931 /* Skip initial setlocale if LC_ALL is "C", as it's not needed in that case.
932 The build procedure uses this while dumping, to ensure that the
933 dumped Emacs does not have its system locale tables initialized,
934 as that might cause screwups when the dumped Emacs starts up. */
936 char *lc_all
= getenv ("LC_ALL");
937 do_initial_setlocale
= ! lc_all
|| strcmp (lc_all
, "C");
940 /* Set locale now, so that initial error messages are localized properly.
941 fixup_locale must wait until later, since it builds strings. */
942 if (do_initial_setlocale
)
943 setlocale (LC_ALL
, "");
944 text_quoting_flag
= using_utf8 ();
946 inhibit_window_system
= 0;
948 /* Handle the -t switch, which specifies filename to use as terminal. */
952 if (argmatch (argv
, argc
, "-t", "--terminal", 4, &term
, &skip_args
))
957 result
= emacs_open (term
, O_RDWR
, 0);
958 if (result
< 0 || fcntl (0, F_DUPFD_CLOEXEC
, 1) < 0)
960 char *errstring
= strerror (errno
);
961 fprintf (stderr
, "%s: %s: %s\n", argv
[0], term
, errstring
);
966 fprintf (stderr
, "%s: %s: not a tty\n", argv
[0], term
);
969 fprintf (stderr
, "Using %s\n", term
);
970 #ifdef HAVE_WINDOW_SYSTEM
971 inhibit_window_system
= 1; /* -t => -nw */
978 /* Command line option --no-windows is deprecated and thus not mentioned
979 in the manual and usage information. */
980 if (argmatch (argv
, argc
, "-nw", "--no-window-system", 6, NULL
, &skip_args
)
981 || argmatch (argv
, argc
, "-nw", "--no-windows", 6, NULL
, &skip_args
))
982 inhibit_window_system
= 1;
984 /* Handle the -batch switch, which means don't do interactive display. */
986 if (argmatch (argv
, argc
, "-batch", "--batch", 5, NULL
, &skip_args
))
989 Vundo_outer_limit
= Qnil
;
991 if (argmatch (argv
, argc
, "-script", "--script", 3, &junk
, &skip_args
))
993 noninteractive
= 1; /* Set batch mode. */
994 /* Convert --script to -scriptload, un-skip it, and sort again
995 so that it will be handled in proper sequence. */
996 /* FIXME broken for --script=FILE - is that supposed to work? */
997 argv
[skip_args
- 1] = (char *) "-scriptload";
999 sort_args (argc
, argv
);
1002 /* Handle the --help option, which gives a usage message. */
1003 if (argmatch (argv
, argc
, "-help", "--help", 3, NULL
, &skip_args
))
1006 printf ("Usage: %s [OPTION-OR-FILENAME]...\n", argv
[0]);
1007 for (i
= 0; i
< ARRAYELTS (usage_message
); i
++)
1008 fputs (usage_message
[i
], stdout
);
1013 /* Make sure IS_DAEMON starts up as false. */
1016 w32_daemon_event
= NULL
;
1019 if (argmatch (argv
, argc
, "-daemon", "--daemon", 5, NULL
, &skip_args
)
1020 || argmatch (argv
, argc
, "-daemon", "--daemon", 5, &dname_arg
, &skip_args
))
1025 /* Start as a daemon: fork a new child process which will run the
1026 rest of the initialization code, then exit.
1028 Detaching a daemon requires the following steps:
1032 - close the tty file-descriptors
1034 We only want to do the last 2 steps once the daemon is ready to
1035 serve requests, i.e. after loading .emacs (initialization).
1036 OTOH initialization may start subprocesses (e.g. ispell) and these
1037 should be run from the proper process (the one that will end up
1038 running as daemon) and with the proper "session id" in order for
1039 them to keep working after detaching, so fork and setsid need to be
1040 performed before initialization.
1042 We want to avoid exiting before the server socket is ready, so
1043 use a pipe for synchronization. The parent waits for the child
1044 to close its end of the pipe (using `daemon-initialized')
1046 if (emacs_pipe (daemon_pipe
) != 0)
1048 fprintf (stderr
, "Cannot pipe!\n");
1052 #ifndef DAEMON_MUST_EXEC
1054 fprintf (stderr
, "\nWarning: due to a long standing Gtk+ bug\nhttp://bugzilla.gnome.org/show_bug.cgi?id=85715\n\
1055 Emacs might crash when run in daemon mode and the X11 connection is unexpectedly lost.\n\
1056 Using an Emacs configured with --with-x-toolkit=lucid does not have this problem.\n");
1057 #endif /* USE_GTK */
1059 #else /* DAEMON_MUST_EXEC */
1060 if (!dname_arg
|| !strchr (dname_arg
, '\n'))
1061 f
= fork (); /* in orig */
1063 f
= 0; /* in exec'd */
1064 #endif /* !DAEMON_MUST_EXEC */
1070 /* Close unused writing end of the pipe. */
1071 emacs_close (daemon_pipe
[1]);
1073 /* Just wait for the child to close its end of the pipe. */
1076 retval
= read (daemon_pipe
[0], &buf
, 1);
1078 while (retval
== -1 && errno
== EINTR
);
1082 fprintf (stderr
, "Error reading status from child\n");
1085 else if (retval
== 0)
1087 fprintf (stderr
, "Error: server did not start correctly\n");
1091 emacs_close (daemon_pipe
[0]);
1096 emacs_perror ("fork");
1097 exit (EXIT_CANCELED
);
1100 #ifdef DAEMON_MUST_EXEC
1102 /* In orig process, forked as child, OR in exec'd. */
1103 if (!dname_arg
|| !strchr (dname_arg
, '\n'))
1104 { /* In orig, child: now exec w/special daemon name. */
1107 snprintf (fdStr
, sizeof fdStr
,
1108 "--daemon=\n%d,%d\n%s", daemon_pipe
[0],
1109 daemon_pipe
[1], dname_arg
? dname_arg
: "");
1111 if (! (0 <= fdStrlen
&& fdStrlen
< sizeof fdStr
))
1113 fprintf (stderr
, "daemon: child name too long\n");
1114 exit (EXIT_CANNOT_INVOKE
);
1117 argv
[skip_args
] = fdStr
;
1119 fcntl (daemon_pipe
[0], F_SETFD
, 0);
1120 fcntl (daemon_pipe
[1], F_SETFD
, 0);
1121 execvp (argv
[0], argv
);
1122 emacs_perror (argv
[0]);
1123 exit (errno
== ENOENT
? EXIT_ENOENT
: EXIT_CANNOT_INVOKE
);
1126 /* In exec'd: parse special dname into pipe and name info. */
1127 if (!dname_arg
|| !strchr (dname_arg
, '\n')
1128 || strlen (dname_arg
) < 1 || strlen (dname_arg
) > 70)
1130 fprintf (stderr
, "emacs daemon: daemon name absent or too long\n");
1131 exit (EXIT_CANNOT_INVOKE
);
1133 dname_arg2
[0] = '\0';
1134 sscanf (dname_arg
, "\n%d,%d\n%s", &(daemon_pipe
[0]), &(daemon_pipe
[1]),
1136 dname_arg
= *dname_arg2
? dname_arg2
: NULL
;
1137 fcntl (daemon_pipe
[1], F_SETFD
, FD_CLOEXEC
);
1139 #endif /* DAEMON_MUST_EXEC */
1141 /* Close unused reading end of the pipe. */
1142 emacs_close (daemon_pipe
[0]);
1145 #elif defined(WINDOWSNT)
1146 /* Indicate that we want daemon mode. */
1147 w32_daemon_event
= CreateEvent (NULL
, TRUE
, FALSE
, W32_DAEMON_EVENT
);
1148 if (w32_daemon_event
== NULL
)
1150 fprintf (stderr
, "Couldn't create MS-Windows event for daemon: %s\n",
1155 fprintf (stderr
, "This platform does not support the -daemon flag.\n");
1159 daemon_name
= xstrdup (dname_arg
);
1162 #if defined HAVE_PTHREAD && !defined SYSTEM_MALLOC \
1163 && !defined DOUG_LEA_MALLOC && !defined HYBRID_MALLOC
1164 # ifndef CANNOT_DUMP
1165 /* Do not make gmalloc thread-safe when creating bootstrap-emacs, as
1166 that causes an infinite recursive loop with FreeBSD. See
1167 Bug#14569. The part of this bug involving Cygwin is no longer
1168 relevant, now that Cygwin defines HYBRID_MALLOC. */
1169 if (!noninteractive
|| initialized
)
1171 malloc_enable_thread ();
1174 init_signals (dumping
);
1176 noninteractive1
= noninteractive
;
1178 /* Perform basic initializations (not merely interning symbols). */
1185 init_charset_once ();
1186 init_coding_once ();
1187 init_syntax_once (); /* Create standard syntax table. */
1188 init_category_once (); /* Create standard category table. */
1189 init_casetab_once (); /* Must be done before init_buffer_once. */
1190 init_buffer_once (); /* Create buffer table and some buffers. */
1191 init_minibuf_once (); /* Create list of minibuffers. */
1192 /* Must precede init_window_once. */
1194 /* Call syms_of_xfaces before init_window_once because that
1195 function creates Vterminal_frame. Termcap frames now use
1196 faces, and the face implementation uses some symbols as
1199 /* XXX syms_of_keyboard uses some symbols in keymap.c. It would
1200 be better to arrange things not to have this dependency. */
1202 /* Call syms_of_keyboard before init_window_once because
1203 keyboard sets up symbols that include some face names that
1204 the X support will want to use. This can happen when
1205 CANNOT_DUMP is defined. */
1206 syms_of_keyboard ();
1208 /* Called before syms_of_fileio, because it sets up Qerror_condition. */
1210 syms_of_fns (); /* Before syms_of_charset which uses hashtables. */
1212 /* Before syms_of_coding to initialize Vgc_cons_threshold. */
1214 /* May call Ffuncall and so GC, thus the latter should be initialized. */
1216 /* Before syms_of_coding because it initializes Qcharsetp. */
1218 /* Before init_window_once, because it sets up the
1219 Vcoding_system_hash_table. */
1220 syms_of_coding (); /* This should be after syms_of_fileio. */
1222 init_window_once (); /* Init the window system. */
1223 #ifdef HAVE_WINDOW_SYSTEM
1224 init_fringe_once (); /* Swap bitmaps if necessary. */
1225 #endif /* HAVE_WINDOW_SYSTEM */
1230 if (do_initial_setlocale
)
1233 Vsystem_messages_locale
= Vprevious_system_messages_locale
;
1234 Vsystem_time_locale
= Vprevious_system_time_locale
;
1239 running_asynch_code
= 0;
1243 = argmatch (argv
, argc
, "-nl", "--no-loadup", 6, NULL
, &skip_args
);
1246 = argmatch (argv
, argc
, "-nsl", "--no-site-lisp", 11, NULL
, &skip_args
);
1249 ns_pool
= ns_alloc_autorelease_pool ();
1250 #ifdef NS_IMPL_GNUSTEP
1251 /* GNUstep stupidly resets our locale settings after we made them. */
1255 if (!noninteractive
)
1257 #ifdef NS_IMPL_COCOA
1258 /* Started from GUI? */
1259 /* FIXME: Do the right thing if getenv returns NULL, or if
1261 if (! inhibit_window_system
&& ! isatty (0) && ! ch_to_dir
)
1262 chdir (getenv ("HOME"));
1263 if (skip_args
< argc
)
1265 if (!strncmp (argv
[skip_args
], "-psn", 4))
1268 if (! ch_to_dir
) chdir (getenv ("HOME"));
1270 else if (skip_args
+1 < argc
&& !strncmp (argv
[skip_args
+1], "-psn", 4))
1273 if (! ch_to_dir
) chdir (getenv ("HOME"));
1278 #endif /* HAVE_NS */
1280 #ifdef HAVE_X_WINDOWS
1281 /* Stupid kludge to catch command-line display spec. We can't
1282 handle this argument entirely in window system dependent code
1283 because we don't even know which window system dependent code
1284 to run until we've recognized this argument. */
1286 char *displayname
= 0;
1287 int count_before
= skip_args
;
1289 /* Skip any number of -d options, but only use the last one. */
1292 int count_before_this
= skip_args
;
1294 if (argmatch (argv
, argc
, "-d", "--display", 3, &displayname
, &skip_args
))
1296 else if (argmatch (argv
, argc
, "-display", 0, 3, &displayname
, &skip_args
))
1301 count_before
= count_before_this
;
1304 /* If we have the form --display=NAME,
1305 convert it into -d name.
1306 This requires inserting a new element into argv. */
1307 if (displayname
&& count_before
< skip_args
)
1309 if (skip_args
== count_before
+ 1)
1311 memmove (argv
+ count_before
+ 3, argv
+ count_before
+ 2,
1312 (argc
- (count_before
+ 2)) * sizeof *argv
);
1313 argv
[count_before
+ 2] = displayname
;
1316 argv
[count_before
+ 1] = (char *) "-d";
1321 if (argmatch (argv
, argc
, "-Q", "--quick", 3, NULL
, &skip_args
)
1322 || argmatch (argv
, argc
, "-quick", 0, 2, NULL
, &skip_args
))
1326 /* Don't actually discard this arg. */
1327 skip_args
= count_before
;
1329 #else /* !HAVE_X_WINDOWS */
1332 int count_before
= skip_args
;
1334 if (argmatch (argv
, argc
, "-Q", "--quick", 3, NULL
, &skip_args
)
1335 || argmatch (argv
, argc
, "-quick", 0, 2, NULL
, &skip_args
))
1338 skip_args
= count_before
;
1342 /* argmatch must not be used after here,
1343 except when building temacs
1344 because the -d argument has not been skipped in skip_args. */
1347 /* Call early 'cause init_environment needs it. */
1349 /* Set defaults for several environment variables. */
1351 init_environment (argc
, argv
, skip_args
);
1356 #ifdef HAVE_GFILENOTIFY
1357 globals_of_gfilenotify ();
1362 #ifdef HAVE_W32NOTIFY
1363 globals_of_w32notify ();
1365 /* Initialize environment from registry settings. */
1366 init_environment (argv
);
1367 init_ntproc (dumping
); /* must precede init_editfns. */
1370 /* Initialize and GC-protect Vinitial_environment and
1371 Vprocess_environment before set_initial_environment fills them
1374 syms_of_callproc ();
1375 /* egetenv is a pretty low-level facility, which may get called in
1376 many circumstances; it seems flimsy to put off initializing it
1377 until calling init_callproc. Do not do it when dumping. */
1379 set_initial_environment ();
1381 /* AIX crashes are reported in system versions 3.2.3 and 3.2.4
1382 if this is not done. Do it after set_global_environment so that we
1383 don't pollute Vglobal_environment. */
1384 /* Setting LANG here will defeat the startup locale processing... */
1389 /* Init buffer storage and default directory of main buffer. */
1390 init_buffer (initialized
);
1392 init_callproc_1 (); /* Must precede init_cmdargs and init_sys_modes. */
1394 /* Must precede init_lread. */
1395 init_cmdargs (argc
, argv
, skip_args
, original_pwd
);
1399 /* Erase any pre-dump messages in the message log, to avoid confusion. */
1400 Lisp_Object old_log_max
;
1401 old_log_max
= Vmessage_log_max
;
1402 XSETFASTINT (Vmessage_log_max
, 0);
1403 message_dolog ("", 0, 1, 0);
1404 Vmessage_log_max
= old_log_max
;
1407 init_callproc (); /* Must follow init_cmdargs but not init_sys_modes. */
1411 /* Check to see if Emacs has been installed correctly. */
1412 check_windows_init_file ();
1415 /* Intern the names of all standard functions and variables;
1416 define standard keys. */
1420 /* The basic levels of Lisp must come first. Note that
1421 syms_of_data and some others have already been called. */
1426 syms_of_floatfns ();
1429 syms_of_bytecode ();
1431 syms_of_casefiddle ();
1433 syms_of_category ();
1435 syms_of_character ();
1442 syms_of_filelock ();
1445 /* syms_of_keymap (); */
1453 syms_of_terminal ();
1459 syms_of_textprop ();
1460 syms_of_composite ();
1463 #endif /* WINDOWSNT */
1470 #ifdef HAVE_WINDOW_SYSTEM
1473 #endif /* HAVE_WINDOW_SYSTEM */
1474 #ifdef HAVE_X_WINDOWS
1479 syms_of_xsettings ();
1486 #endif /* HAVE_X_WINDOWS */
1493 syms_of_decompress ();
1503 #endif /* HAVE_NTGUI */
1505 #if defined WINDOWSNT || defined HAVE_NTGUI
1506 syms_of_w32select ();
1513 syms_of_win16select ();
1520 syms_of_nsselect ();
1522 #endif /* HAVE_NS */
1526 #ifdef HAVE_GFILENOTIFY
1527 syms_of_gfilenotify ();
1528 #endif /* HAVE_GFILENOTIFY */
1532 #endif /* HAVE_INOTIFY */
1535 syms_of_dbusbind ();
1536 #endif /* HAVE_DBUS */
1540 #ifdef HAVE_W32NOTIFY
1541 syms_of_w32notify ();
1542 #endif /* HAVE_W32NOTIFY */
1543 #endif /* WINDOWSNT */
1545 syms_of_profiler ();
1547 keys_of_casefiddle ();
1550 keys_of_keyboard ();
1556 /* Initialization that must be done even if the global variable
1557 initialized is non zero. */
1559 globals_of_w32font ();
1560 globals_of_w32fns ();
1561 globals_of_w32menu ();
1562 #endif /* HAVE_NTGUI */
1564 #if defined WINDOWSNT || defined HAVE_NTGUI
1565 globals_of_w32select ();
1571 /* This calls putenv and so must precede init_process_emacs. Also,
1572 it sets Voperating_system_release, which init_process_emacs uses. */
1573 init_editfns (dumping
);
1575 /* These two call putenv. */
1583 /* This can create a thread that may call getenv, so it must follow
1584 all calls to putenv and setenv. Also, this sets up
1585 add_keyboard_wait_descriptor, which init_display uses. */
1586 init_process_emacs ();
1588 init_keyboard (); /* This too must precede init_sys_modes. */
1589 if (!noninteractive
)
1590 init_display (); /* Determine terminal type. Calls init_sys_modes. */
1593 init_crit (); /* w32notify.c needs this in batch mode. */
1594 #endif /* HAVE_W32NOTIFY */
1596 #ifdef HAVE_WINDOW_SYSTEM
1598 #endif /* HAVE_WINDOW_SYSTEM */
1606 /* Handle -l loadup, args passed by Makefile. */
1607 if (argmatch (argv
, argc
, "-l", "--load", 3, &file
, &skip_args
))
1610 char file_utf8
[MAX_UTF8_PATH
];
1612 if (filename_from_ansi (file
, file_utf8
) == 0)
1615 Vtop_level
= list2 (Qload
, build_unibyte_string (file
));
1617 /* Unless next switch is -nl, load "loadup.el" first thing. */
1619 Vtop_level
= list2 (Qload
, build_string ("loadup.el"));
1622 /* Set up for profiling. This is known to work on FreeBSD,
1623 GNU/Linux and MinGW. It might work on some other systems too.
1624 Give it a try and tell us if it works on your system. To compile
1625 for profiling, use the configure option --enable-profiling. */
1626 #if defined (__FreeBSD__) || defined (GNU_LINUX) || defined (__MINGW32__)
1631 extern unsigned char etext
asm ("etext");
1637 monstartup ((uintptr_t) __executable_start
, (uintptr_t) &etext
);
1646 /* Enter editor command loop. This never returns. */
1652 /* Sort the args so we can find the most important ones
1653 at the beginning of argv. */
1655 /* First, here's a table of all the standard options. */
1657 struct standard_args
1660 const char *longname
;
1665 static const struct standard_args standard_args
[] =
1667 { "-version", "--version", 150, 0 },
1668 { "-chdir", "--chdir", 130, 1 },
1669 { "-t", "--terminal", 120, 1 },
1670 { "-nw", "--no-window-system", 110, 0 },
1671 { "-nw", "--no-windows", 110, 0 },
1672 { "-batch", "--batch", 100, 0 },
1673 { "-script", "--script", 100, 1 },
1674 { "-daemon", "--daemon", 99, 0 },
1675 { "-help", "--help", 90, 0 },
1676 { "-nl", "--no-loadup", 70, 0 },
1677 { "-nsl", "--no-site-lisp", 65, 0 },
1678 /* -d must come last before the options handled in startup.el. */
1679 { "-d", "--display", 60, 1 },
1680 { "-display", 0, 60, 1 },
1681 /* Now for the options handled in `command-line' (startup.el). */
1682 /* (Note that to imply -nsl, -Q is partially handled here.) */
1683 { "-Q", "--quick", 55, 0 },
1684 { "-quick", 0, 55, 0 },
1685 { "-q", "--no-init-file", 50, 0 },
1686 { "-no-init-file", 0, 50, 0 },
1687 { "-no-x-resources", "--no-x-resources", 40, 0 },
1688 { "-no-site-file", "--no-site-file", 40, 0 },
1689 { "-u", "--user", 30, 1 },
1690 { "-user", 0, 30, 1 },
1691 { "-debug-init", "--debug-init", 20, 0 },
1692 { "-iconic", "--iconic", 15, 0 },
1693 { "-D", "--basic-display", 12, 0},
1694 { "-basic-display", 0, 12, 0},
1695 { "-nbc", "--no-blinking-cursor", 12, 0 },
1696 /* Now for the options handled in `command-line-1' (startup.el). */
1697 { "-nbi", "--no-bitmap-icon", 10, 0 },
1698 { "-bg", "--background-color", 10, 1 },
1699 { "-background", 0, 10, 1 },
1700 { "-fg", "--foreground-color", 10, 1 },
1701 { "-foreground", 0, 10, 1 },
1702 { "-bd", "--border-color", 10, 1 },
1703 { "-bw", "--border-width", 10, 1 },
1704 { "-ib", "--internal-border", 10, 1 },
1705 { "-ms", "--mouse-color", 10, 1 },
1706 { "-cr", "--cursor-color", 10, 1 },
1707 { "-fn", "--font", 10, 1 },
1708 { "-font", 0, 10, 1 },
1709 { "-fs", "--fullscreen", 10, 0 },
1710 { "-fw", "--fullwidth", 10, 0 },
1711 { "-fh", "--fullheight", 10, 0 },
1712 { "-mm", "--maximized", 10, 0 },
1713 { "-g", "--geometry", 10, 1 },
1714 { "-geometry", 0, 10, 1 },
1715 { "-T", "--title", 10, 1 },
1716 { "-title", 0, 10, 1 },
1717 { "-name", "--name", 10, 1 },
1718 { "-xrm", "--xrm", 10, 1 },
1719 { "-parent-id", "--parent-id", 10, 1 },
1720 { "-r", "--reverse-video", 5, 0 },
1722 { "-reverse", 0, 5, 0 },
1723 { "-hb", "--horizontal-scroll-bars", 5, 0 },
1724 { "-vb", "--vertical-scroll-bars", 5, 0 },
1725 { "-color", "--color", 5, 0},
1726 { "-no-splash", "--no-splash", 3, 0 },
1727 { "-no-desktop", "--no-desktop", 3, 0 },
1729 { "-NSAutoLaunch", 0, 5, 1 },
1730 { "-NXAutoLaunch", 0, 5, 1 },
1731 { "-_NSMachLaunch", 0, 85, 1 },
1732 { "-MachLaunch", 0, 85, 1 },
1733 { "-macosx", 0, 85, 0 },
1734 { "-NSHost", 0, 85, 1 },
1736 /* These have the same priority as ordinary file name args,
1737 so they are not reordered with respect to those. */
1738 { "-L", "--directory", 0, 1 },
1739 { "-directory", 0, 0, 1 },
1740 { "-l", "--load", 0, 1 },
1741 { "-load", 0, 0, 1 },
1742 /* This has no longname, because using --scriptload confuses sort_args,
1743 because then the --script long option seems to match twice; ie
1744 you can't have a long option which is a prefix of another long
1745 option. In any case, this is entirely an internal option. */
1746 { "-scriptload", NULL
, 0, 1 },
1747 { "-f", "--funcall", 0, 1 },
1748 { "-funcall", 0, 0, 1 },
1749 { "-eval", "--eval", 0, 1 },
1750 { "-execute", "--execute", 0, 1 },
1751 { "-find-file", "--find-file", 0, 1 },
1752 { "-visit", "--visit", 0, 1 },
1753 { "-file", "--file", 0, 1 },
1754 { "-insert", "--insert", 0, 1 },
1756 { "-NXOpen", 0, 0, 1 },
1757 { "-NXOpenTemp", 0, 0, 1 },
1758 { "-NSOpen", 0, 0, 1 },
1759 { "-NSOpenTemp", 0, 0, 1 },
1760 { "-GSFilePath", 0, 0, 1 },
1762 /* This should be processed after ordinary file name args and the like. */
1763 { "-kill", "--kill", -10, 0 },
1766 /* Reorder the elements of ARGV (assumed to have ARGC elements)
1767 so that the highest priority ones come first.
1768 Do not change the order of elements of equal priority.
1769 If an option takes an argument, keep it and its argument together.
1771 If an option that takes no argument appears more
1772 than once, eliminate all but one copy of it. */
1775 sort_args (int argc
, char **argv
)
1777 char **new = xmalloc (argc
* sizeof *new);
1778 /* For each element of argv,
1779 the corresponding element of options is:
1780 0 for an option that takes no arguments,
1781 1 for an option that takes one argument, etc.
1782 -1 for an ordinary non-option argument. */
1783 int *options
= xnmalloc (argc
, sizeof *options
);
1784 int *priority
= xnmalloc (argc
, sizeof *priority
);
1786 int incoming_used
= 1;
1790 /* Categorize all the options,
1791 and figure out which argv elts are option arguments. */
1792 for (from
= 1; from
< argc
; from
++)
1796 if (argv
[from
][0] == '-')
1800 /* If we have found "--", don't consider
1801 any more arguments as options. */
1802 if (argv
[from
][1] == '-' && argv
[from
][2] == 0)
1804 /* Leave the "--", and everything following it, at the end. */
1805 for (; from
< argc
; from
++)
1807 priority
[from
] = -100;
1813 /* Look for a match with a known old-fashioned option. */
1814 for (i
= 0; i
< ARRAYELTS (standard_args
); i
++)
1815 if (!strcmp (argv
[from
], standard_args
[i
].name
))
1817 options
[from
] = standard_args
[i
].nargs
;
1818 priority
[from
] = standard_args
[i
].priority
;
1819 if (from
+ standard_args
[i
].nargs
>= argc
)
1820 fatal ("Option '%s' requires an argument\n", argv
[from
]);
1821 from
+= standard_args
[i
].nargs
;
1825 /* Look for a match with a known long option.
1826 MATCH is -1 if no match so far, -2 if two or more matches so far,
1827 >= 0 (the table index of the match) if just one match so far. */
1828 if (argv
[from
][1] == '-')
1830 char const *equals
= strchr (argv
[from
], '=');
1832 equals
? equals
- argv
[from
] : strlen (argv
[from
]);
1836 for (i
= 0; i
< ARRAYELTS (standard_args
); i
++)
1837 if (standard_args
[i
].longname
1838 && !strncmp (argv
[from
], standard_args
[i
].longname
,
1847 /* If we found exactly one match, use that. */
1850 options
[from
] = standard_args
[match
].nargs
;
1851 priority
[from
] = standard_args
[match
].priority
;
1852 /* If --OPTION=VALUE syntax is used,
1853 this option uses just one argv element. */
1856 if (from
+ options
[from
] >= argc
)
1857 fatal ("Option '%s' requires an argument\n", argv
[from
]);
1858 from
+= options
[from
];
1860 /* FIXME When match < 0, shouldn't there be some error,
1861 or at least indication to the user that there was a
1868 /* Copy the arguments, in order of decreasing priority, to NEW. */
1870 while (incoming_used
< argc
)
1873 int best_priority
= -9999;
1875 /* Find the highest priority remaining option.
1876 If several have equal priority, take the first of them. */
1877 for (from
= 1; from
< argc
; from
++)
1879 if (argv
[from
] != 0 && priority
[from
] > best_priority
)
1881 best_priority
= priority
[from
];
1884 /* Skip option arguments--they are tied to the options. */
1885 if (options
[from
] > 0)
1886 from
+= options
[from
];
1892 /* Copy the highest priority remaining option, with its args, to NEW.
1893 Unless it is a duplicate of the previous one. */
1894 if (! (options
[best
] == 0
1895 && ! strcmp (new[to
- 1], argv
[best
])))
1897 new[to
++] = argv
[best
];
1898 for (i
= 0; i
< options
[best
]; i
++)
1899 new[to
++] = argv
[best
+ i
+ 1];
1902 incoming_used
+= 1 + (options
[best
] > 0 ? options
[best
] : 0);
1904 /* Clear out this option in ARGV. */
1906 for (i
= 0; i
< options
[best
]; i
++)
1907 argv
[best
+ i
+ 1] = 0;
1910 /* If duplicate options were deleted, fill up extra space with null ptrs. */
1914 memcpy (argv
, new, sizeof (char *) * argc
);
1921 DEFUN ("kill-emacs", Fkill_emacs
, Skill_emacs
, 0, 1, "P",
1922 doc
: /* Exit the Emacs job and kill it.
1923 If ARG is an integer, return ARG as the exit program code.
1924 If ARG is a string, stuff it as keyboard input.
1926 This function is called upon receipt of the signals SIGTERM
1927 or SIGHUP, and upon SIGINT in batch mode.
1929 The value of `kill-emacs-hook', if not void,
1930 is a list of functions (of no args),
1931 all of which are called before Emacs is actually killed. */
1932 attributes
: noreturn
)
1935 struct gcpro gcpro1
;
1940 /* Fsignal calls emacs_abort () if it sees that waiting_for_input is
1942 waiting_for_input
= 0;
1943 run_hook (Qkill_emacs_hook
);
1946 #ifdef HAVE_X_WINDOWS
1947 /* Transfer any clipboards we own to the clipboard manager. */
1948 x_clipboard_manager_save_all ();
1951 shut_down_emacs (0, (STRINGP (arg
) && !feof (stdin
)) ? arg
: Qnil
);
1954 ns_release_autorelease_pool (ns_pool
);
1957 /* If we have an auto-save list file,
1958 kill it because we are exiting Emacs deliberately (not crashing).
1959 Do it after shut_down_emacs, which does an auto-save. */
1960 if (STRINGP (Vauto_save_list_file_name
))
1962 Lisp_Object listfile
;
1963 listfile
= Fexpand_file_name (Vauto_save_list_file_name
, Qnil
);
1964 unlink (SSDATA (listfile
));
1968 exit_code
= (XINT (arg
) < 0
1969 ? XINT (arg
) | INT_MIN
1970 : XINT (arg
) & INT_MAX
);
1972 exit_code
= EXIT_SUCCESS
;
1977 /* Perform an orderly shutdown of Emacs. Autosave any modified
1978 buffers, kill any child processes, clean up the terminal modes (if
1979 we're in the foreground), and other stuff like that. Don't perform
1980 any redisplay; this may be called when Emacs is shutting down in
1981 the background, or after its X connection has died.
1983 If SIG is a signal number, print a message for it.
1985 This is called by fatal signal handlers, X protocol error handlers,
1989 shut_down_emacs (int sig
, Lisp_Object stuff
)
1991 /* Prevent running of hooks from now on. */
1994 /* Don't update display from now on. */
1995 Vinhibit_redisplay
= Qt
;
1997 /* If we are controlling the terminal, reset terminal modes. */
2000 pid_t pgrp
= getpgrp ();
2001 pid_t tpgrp
= tcgetpgrp (0);
2002 if ((tpgrp
!= -1) && tpgrp
== pgrp
)
2004 reset_all_sys_modes ();
2005 if (sig
&& sig
!= SIGTERM
)
2007 static char const format
[] = "Fatal error %d: ";
2008 char buf
[sizeof format
- 2 + INT_STRLEN_BOUND (int)];
2009 int buflen
= sprintf (buf
, format
, sig
);
2010 char const *sig_desc
= safe_strsignal (sig
);
2011 emacs_write (STDERR_FILENO
, buf
, buflen
);
2012 emacs_write (STDERR_FILENO
, sig_desc
, strlen (sig_desc
));
2018 reset_all_sys_modes ();
2021 stuff_buffered_input (stuff
);
2023 inhibit_sentinels
= 1;
2024 kill_buffer_processes (Qnil
);
2025 Fdo_auto_save (Qt
, Qnil
);
2027 unlock_all_files ();
2029 /* There is a tendency for a SIGIO signal to arrive within exit,
2030 and cause a SIGHUP because the input descriptor is already closed. */
2033 /* Do this only if terminating normally, we want glyph matrices
2034 etc. in a core dump. */
2035 if (sig
== 0 || sig
== SIGTERM
)
2037 check_glyph_memory ();
2038 check_message_stack ();
2046 ns_term_shutdown (sig
);
2050 xml_cleanup_parser ();
2064 DEFUN ("dump-emacs", Fdump_emacs
, Sdump_emacs
, 2, 2, 0,
2065 doc
: /* Dump current state of Emacs into executable file FILENAME.
2066 Take symbols from SYMFILE (presumably the file you executed to run Emacs).
2067 This is used in the file `loadup.el' when building Emacs.
2069 You must run Emacs in batch mode in order to dump it. */)
2070 (Lisp_Object filename
, Lisp_Object symfile
)
2074 ptrdiff_t count
= SPECPDL_INDEX ();
2078 if (! noninteractive
)
2079 error ("Dumping Emacs works only in batch mode");
2082 error ("Emacs can be dumped only once");
2086 /* Warn if the gap between BSS end and heap start is larger than this. */
2087 # define MAX_HEAP_BSS_DIFF (1024*1024)
2089 if (heap_bss_diff
> MAX_HEAP_BSS_DIFF
)
2091 fprintf (stderr
, "**************************************************\n");
2092 fprintf (stderr
, "Warning: Your system has a gap between BSS and the\n");
2093 fprintf (stderr
, "heap (%"pMu
" bytes). This usually means that exec-shield\n",
2095 fprintf (stderr
, "or something similar is in effect. The dump may\n");
2096 fprintf (stderr
, "fail because of this. See the section about\n");
2097 fprintf (stderr
, "exec-shield in etc/PROBLEMS for more information.\n");
2098 fprintf (stderr
, "**************************************************\n");
2100 #endif /* GNU_LINUX */
2102 /* Bind `command-line-processed' to nil before dumping,
2103 so that the dumped Emacs will process its command line
2104 and set up to work with X windows if appropriate. */
2105 symbol
= intern ("command-line-processed");
2106 specbind (symbol
, Qnil
);
2108 CHECK_STRING (filename
);
2109 filename
= Fexpand_file_name (filename
, Qnil
);
2110 filename
= ENCODE_FILE (filename
);
2111 if (!NILP (symfile
))
2113 CHECK_STRING (symfile
);
2114 if (SCHARS (symfile
))
2116 symfile
= Fexpand_file_name (symfile
, Qnil
);
2117 symfile
= ENCODE_FILE (symfile
);
2122 Vpurify_flag
= Qnil
;
2125 /* Tell malloc where start of impure now is. */
2126 /* Also arrange for warnings when nearly out of space. */
2127 #if !defined SYSTEM_MALLOC && !defined HYBRID_MALLOC
2129 /* On Windows, this was done before dumping, and that once suffices.
2130 Meanwhile, my_edata is not valid on Windows. */
2131 memory_warnings (my_edata
, malloc_warning
);
2132 #endif /* not WINDOWSNT */
2133 #endif /* not SYSTEM_MALLOC and not HYBRID_MALLOC */
2134 #ifdef DOUG_LEA_MALLOC
2135 malloc_state_ptr
= malloc_get_state ();
2138 unexec (SSDATA (filename
), !NILP (symfile
) ? SSDATA (symfile
) : 0);
2140 #ifdef DOUG_LEA_MALLOC
2141 free (malloc_state_ptr
);
2145 Vlibrary_cache
= Qnil
;
2147 #ifdef HAVE_WINDOW_SYSTEM
2148 reset_image_types ();
2153 return unbind_to (count
, Qnil
);
2156 #endif /* not CANNOT_DUMP */
2159 /* Recover from setlocale (LC_ALL, ""). */
2163 /* The Emacs Lisp reader needs LC_NUMERIC to be "C",
2164 so that numbers are read and printed properly for Emacs Lisp. */
2165 setlocale (LC_NUMERIC
, "C");
2168 /* Set system locale CATEGORY, with previous locale *PLOCALE, to
2171 synchronize_locale (int category
, Lisp_Object
*plocale
, Lisp_Object desired_locale
)
2173 if (! EQ (*plocale
, desired_locale
))
2175 *plocale
= desired_locale
;
2177 /* Changing categories like LC_TIME usually requires to specify
2178 an encoding suitable for the new locale, but MS-Windows's
2179 'setlocale' will only switch the encoding when LC_ALL is
2180 specified. So we ignore CATEGORY, use LC_ALL instead, and
2181 then restore LC_NUMERIC to "C", so reading and printing
2182 numbers is unaffected. */
2183 setlocale (LC_ALL
, (STRINGP (desired_locale
)
2184 ? SSDATA (desired_locale
)
2187 #else /* !WINDOWSNT */
2188 setlocale (category
, (STRINGP (desired_locale
)
2189 ? SSDATA (desired_locale
)
2191 #endif /* !WINDOWSNT */
2195 /* Set system time locale to match Vsystem_time_locale, if possible. */
2197 synchronize_system_time_locale (void)
2199 synchronize_locale (LC_TIME
, &Vprevious_system_time_locale
,
2200 Vsystem_time_locale
);
2203 /* Set system messages locale to match Vsystem_messages_locale, if
2206 synchronize_system_messages_locale (void)
2209 synchronize_locale (LC_MESSAGES
, &Vprevious_system_messages_locale
,
2210 Vsystem_messages_locale
);
2213 #endif /* HAVE_SETLOCALE */
2217 decode_env_path (const char *evarname
, const char *defalt
, bool empty
)
2219 const char *path
, *p
;
2220 Lisp_Object lpath
, element
, tem
;
2221 /* Default is to use "." for empty path elements.
2222 But if argument EMPTY is true, use nil instead. */
2223 Lisp_Object empty_element
= empty
? Qnil
: build_string (".");
2226 static const char *emacs_dir_env
= "%emacs_dir%/";
2227 const size_t emacs_dir_len
= strlen (emacs_dir_env
);
2228 const char *edir
= egetenv ("emacs_dir");
2229 char emacs_dir
[MAX_UTF8_PATH
];
2231 /* egetenv looks in process-environment, which holds the variables
2232 in their original system-locale encoding. We need emacs_dir to
2235 filename_from_ansi (edir
, emacs_dir
);
2238 /* It's okay to use getenv here, because this function is only used
2239 to initialize variables when Emacs starts up, and isn't called
2242 path
= getenv (evarname
);
2253 /* Ensure values from the environment use the proper directory separator. */
2259 char *path_utf8
, *q
, *d
;
2262 /* Convert each element of PATH to UTF-8. */
2263 p
= path_copy
= alloca (strlen (path
) + 1);
2264 strcpy (path_copy
, path
);
2265 d
= path_utf8
= alloca (4 * strlen (path
) + 1);
2268 q
= _mbschr (p
, SEPCHAR
);
2271 cnv_result
= filename_from_ansi (p
, d
);
2276 /* If conversion of this PATH elements fails, make sure
2277 destination pointer will stay put, thus effectively
2278 ignoring the offending element. */
2279 if (cnv_result
== 0)
2285 else if (cnv_result
!= 0 && d
> path_utf8
)
2286 d
[-1] = '\0'; /* remove last semi-colon and null-terminate PATH */
2288 path_copy
= path_utf8
;
2290 path_copy
= alloca (strlen (path
) + 1);
2291 strcpy (path_copy
, path
);
2293 dostounix_filename (path_copy
);
2300 p
= strchr (path
, SEPCHAR
);
2302 p
= path
+ strlen (path
);
2303 element
= ((p
- path
) ? make_unibyte_string (path
, p
- path
)
2305 if (! NILP (element
))
2308 /* Relative file names in the default path are interpreted as
2309 being relative to $emacs_dir. */
2310 if (edir
&& defaulted
2311 && strncmp (path
, emacs_dir_env
, emacs_dir_len
) == 0)
2312 element
= Fexpand_file_name (Fsubstring
2314 make_number (emacs_dir_len
),
2316 build_unibyte_string (emacs_dir
));
2319 /* Add /: to the front of the name
2320 if it would otherwise be treated as magic. */
2321 tem
= Ffind_file_name_handler (element
, Qt
);
2323 /* However, if the handler says "I'm safe",
2324 don't bother adding /:. */
2328 prop
= Fget (tem
, intern ("safe-magic"));
2335 AUTO_STRING (slash_colon
, "/:");
2336 element
= concat2 (slash_colon
, element
);
2338 } /* !NILP (element) */
2340 lpath
= Fcons (element
, lpath
);
2346 return Fnreverse (lpath
);
2349 DEFUN ("daemonp", Fdaemonp
, Sdaemonp
, 0, 0, 0,
2350 doc
: /* Return non-nil if the current emacs process is a daemon.
2351 If the daemon was given a name argument, return that name. */)
2356 return build_string (daemon_name
);
2363 DEFUN ("daemon-initialized", Fdaemon_initialized
, Sdaemon_initialized
, 0, 0, 0,
2364 doc
: /* Mark the Emacs daemon as being initialized.
2365 This finishes the daemonization process by doing the other half of detaching
2366 from the parent process and its tty file descriptors. */)
2372 error ("This function can only be called if emacs is run as a daemon");
2374 if (!DAEMON_RUNNING
)
2375 error ("The daemon has already been initialized");
2377 if (NILP (Vafter_init_time
))
2378 error ("This function can only be called after loading the init files");
2382 /* Get rid of stdin, stdout and stderr. */
2383 nfd
= emacs_open ("/dev/null", O_RDWR
, 0);
2385 err
|= dup2 (nfd
, 0) < 0;
2386 err
|= dup2 (nfd
, 1) < 0;
2387 err
|= dup2 (nfd
, 2) < 0;
2388 err
|= emacs_close (nfd
) != 0;
2390 /* Closing the pipe will notify the parent that it can exit.
2391 FIXME: In case some other process inherited the pipe, closing it here
2392 won't notify the parent because it's still open elsewhere, so we
2393 additionally send a byte, just to make sure the parent really exits.
2394 Instead, we should probably close the pipe in start-process and
2395 call-process to make sure the pipe is never inherited by
2397 err
|= write (daemon_pipe
[1], "\n", 1) < 0;
2398 err
|= emacs_close (daemon_pipe
[1]) != 0;
2399 /* Set it to an invalid value so we know we've already run this function. */
2400 daemon_pipe
[1] = -1;
2401 #else /* WINDOWSNT */
2402 /* Signal the waiting emacsclient process. */
2403 err
|= SetEvent (w32_daemon_event
) == 0;
2404 err
|= CloseHandle (w32_daemon_event
) == 0;
2405 /* Set it to an invalid value so we know we've already run this function. */
2406 w32_daemon_event
= INVALID_HANDLE_VALUE
;
2410 error ("I/O error during daemon initialization");
2415 syms_of_emacs (void)
2417 DEFSYM (Qfile_name_handler_alist
, "file-name-handler-alist");
2418 DEFSYM (Qrisky_local_variable
, "risky-local-variable");
2419 DEFSYM (Qkill_emacs
, "kill-emacs");
2420 DEFSYM (Qkill_emacs_hook
, "kill-emacs-hook");
2423 defsubr (&Sdump_emacs
);
2426 defsubr (&Skill_emacs
);
2428 defsubr (&Sinvocation_name
);
2429 defsubr (&Sinvocation_directory
);
2430 defsubr (&Sdaemonp
);
2431 defsubr (&Sdaemon_initialized
);
2433 DEFVAR_LISP ("command-line-args", Vcommand_line_args
,
2434 doc
: /* Args passed by shell to Emacs, as a list of strings.
2435 Many arguments are deleted from the list as they are processed. */);
2437 DEFVAR_LISP ("system-type", Vsystem_type
,
2438 doc
: /* The value is a symbol indicating the type of operating system you are using.
2440 `gnu' compiled for a GNU Hurd system.
2441 `gnu/linux' compiled for a GNU/Linux system.
2442 `gnu/kfreebsd' compiled for a GNU system with a FreeBSD kernel.
2443 `darwin' compiled for Darwin (GNU-Darwin, Mac OS X, ...).
2444 `ms-dos' compiled as an MS-DOS application.
2445 `windows-nt' compiled as a native W32 application.
2446 `cygwin' compiled using the Cygwin library.
2447 Anything else (in Emacs 24.1, the possibilities are: aix, berkeley-unix,
2448 hpux, irix, usg-unix-v) indicates some sort of Unix system. */);
2449 Vsystem_type
= intern_c_string (SYSTEM_TYPE
);
2450 /* See configure.ac for the possible SYSTEM_TYPEs. */
2452 DEFVAR_LISP ("system-configuration", Vsystem_configuration
,
2453 doc
: /* Value is string indicating configuration Emacs was built for. */);
2454 Vsystem_configuration
= build_string (EMACS_CONFIGURATION
);
2456 DEFVAR_LISP ("system-configuration-options", Vsystem_configuration_options
,
2457 doc
: /* String containing the configuration options Emacs was built with. */);
2458 Vsystem_configuration_options
= build_string (EMACS_CONFIG_OPTIONS
);
2460 DEFVAR_LISP ("system-configuration-features", Vsystem_configuration_features
,
2461 doc
: /* String listing some of the main features this Emacs was compiled with.
2462 An element of the form \"FOO\" generally means that HAVE_FOO was
2463 defined during the build.
2465 This is mainly intended for diagnostic purposes in bug reports.
2466 Don't rely on it for testing whether a feature you want to use is available. */);
2467 Vsystem_configuration_features
= build_string (EMACS_CONFIG_FEATURES
);
2469 DEFVAR_BOOL ("noninteractive", noninteractive1
,
2470 doc
: /* Non-nil means Emacs is running without interactive terminal. */);
2472 DEFVAR_LISP ("kill-emacs-hook", Vkill_emacs_hook
,
2473 doc
: /* Hook run when `kill-emacs' is called.
2474 Since `kill-emacs' may be invoked when the terminal is disconnected (or
2475 in other similar situations), functions placed on this hook should not
2476 expect to be able to interact with the user. To ask for confirmation,
2477 see `kill-emacs-query-functions' instead.
2479 Before Emacs 24.1, the hook was not run in batch mode, i.e., if
2480 `noninteractive' was non-nil. */);
2481 Vkill_emacs_hook
= Qnil
;
2483 DEFVAR_LISP ("path-separator", Vpath_separator
,
2484 doc
: /* String containing the character that separates directories in
2485 search paths, such as PATH and other similar environment variables. */);
2488 Vpath_separator
= make_string (&c
, 1);
2491 DEFVAR_LISP ("invocation-name", Vinvocation_name
,
2492 doc
: /* The program name that was used to run Emacs.
2493 Any directory names are omitted. */);
2495 DEFVAR_LISP ("invocation-directory", Vinvocation_directory
,
2496 doc
: /* The directory in which the Emacs executable was found, to run it.
2497 The value is nil if that directory's name is not known. */);
2499 DEFVAR_LISP ("installation-directory", Vinstallation_directory
,
2500 doc
: /* A directory within which to look for the `lib-src' and `etc' directories.
2501 In an installed Emacs, this is normally nil. It is non-nil if
2502 both `lib-src' (on MS-DOS, `info') and `etc' directories are found
2503 within the variable `invocation-directory' or its parent. For example,
2504 this is the case when running an uninstalled Emacs executable from its
2505 build directory. */);
2506 Vinstallation_directory
= Qnil
;
2508 DEFVAR_LISP ("system-messages-locale", Vsystem_messages_locale
,
2509 doc
: /* System locale for messages. */);
2510 Vsystem_messages_locale
= Qnil
;
2512 DEFVAR_LISP ("previous-system-messages-locale",
2513 Vprevious_system_messages_locale
,
2514 doc
: /* Most recently used system locale for messages. */);
2515 Vprevious_system_messages_locale
= Qnil
;
2517 DEFVAR_LISP ("system-time-locale", Vsystem_time_locale
,
2518 doc
: /* System locale for time. */);
2519 Vsystem_time_locale
= Qnil
;
2521 DEFVAR_LISP ("previous-system-time-locale", Vprevious_system_time_locale
,
2522 doc
: /* Most recently used system locale for time. */);
2523 Vprevious_system_time_locale
= Qnil
;
2525 DEFVAR_LISP ("before-init-time", Vbefore_init_time
,
2526 doc
: /* Value of `current-time' before Emacs begins initialization. */);
2527 Vbefore_init_time
= Qnil
;
2529 DEFVAR_LISP ("after-init-time", Vafter_init_time
,
2530 doc
: /* Value of `current-time' after loading the init files.
2531 This is nil during initialization. */);
2532 Vafter_init_time
= Qnil
;
2534 DEFVAR_BOOL ("inhibit-x-resources", inhibit_x_resources
,
2535 doc
: /* If non-nil, X resources, Windows Registry settings, and NS defaults are not used. */);
2536 inhibit_x_resources
= 0;
2538 DEFVAR_LISP ("emacs-copyright", Vemacs_copyright
,
2539 doc
: /* Short copyright string for this version of Emacs. */);
2540 Vemacs_copyright
= build_string (emacs_copyright
);
2542 DEFVAR_LISP ("emacs-version", Vemacs_version
,
2543 doc
: /* Version numbers of this version of Emacs. */);
2544 Vemacs_version
= build_string (emacs_version
);
2546 DEFVAR_LISP ("report-emacs-bug-address", Vreport_emacs_bug_address
,
2547 doc
: /* Address of mailing list for GNU Emacs bugs. */);
2548 Vreport_emacs_bug_address
= build_string (emacs_bugreport
);
2550 DEFVAR_LISP ("dynamic-library-alist", Vdynamic_library_alist
,
2551 doc
: /* Alist of dynamic libraries vs external files implementing them.
2552 Each element is a list (LIBRARY FILE...), where the car is a symbol
2553 representing a supported external library, and the rest are strings giving
2554 alternate filenames for that library.
2556 Emacs tries to load the library from the files in the order they appear on
2557 the list; if none is loaded, the running session of Emacs won't have access
2560 Note that image types `pbm' and `xbm' do not need entries in this variable
2561 because they do not depend on external libraries and are always available.
2563 Also note that this is not a generic facility for accessing external
2564 libraries; only those already known by Emacs will be loaded. */);
2565 Vdynamic_library_alist
= Qnil
;
2566 Fput (intern_c_string ("dynamic-library-alist"), Qrisky_local_variable
, Qt
);
2569 Vlibrary_cache
= Qnil
;
2570 staticpro (&Vlibrary_cache
);