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
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
28 #include <sys/types.h>
32 #include <close-stream.h>
39 #include <sys/socket.h>
45 #if defined WINDOWSNT || defined HAVE_NTGUI
46 #include "w32select.h"
48 #include "w32common.h"
56 #include <binary-io.h>
59 #ifdef HAVE_WINDOW_SYSTEM
61 #endif /* HAVE_WINDOW_SYSTEM */
64 #include "intervals.h"
65 #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"
89 #if (defined PROFILING \
90 && (defined __FreeBSD__ || defined GNU_LINUX || defined __MINGW32__))
91 # include <sys/gmon.h>
92 extern void moncontrol (int mode
);
103 #ifdef HAVE_SETRLIMIT
104 #include <sys/time.h>
105 #include <sys/resource.h>
108 #ifdef HAVE_PERSONALITY_LINUX32
109 #include <sys/personality.h>
112 static const char emacs_version
[] = PACKAGE_VERSION
;
113 static const char emacs_copyright
[] = COPYRIGHT
;
114 static const char emacs_bugreport
[] = PACKAGE_BUGREPORT
;
116 /* Empty lisp strings. To avoid having to build any others. */
117 Lisp_Object empty_unibyte_string
, empty_multibyte_string
;
120 /* Cache for externally loaded libraries. */
121 Lisp_Object Vlibrary_cache
;
124 /* Set after Emacs has started up the first time.
125 Prevents reinitialization of the Lisp world and keymaps
126 on subsequent starts. */
129 /* Set to true if this instance of Emacs might dump. */
133 extern void unexec_init_emacs_zone (void);
136 #ifdef DOUG_LEA_MALLOC
137 /* Preserves a pointer to the memory allocated that copies that
138 static data inside glibc's malloc. */
139 static void *malloc_state_ptr
;
140 /* From glibc, a routine that returns a copy of the malloc internal state. */
141 extern void *malloc_get_state (void);
142 /* From glibc, a routine that overwrites the malloc internal state. */
143 extern int malloc_set_state (void *);
144 /* True if the MALLOC_CHECK_ environment variable was set while
145 dumping. Used to work around a bug in glibc's malloc. */
146 static bool malloc_using_checking
;
147 #elif defined HAVE_PTHREAD && !defined SYSTEM_MALLOC && !defined HYBRID_MALLOC
148 extern void malloc_enable_thread (void);
151 /* If true, Emacs should not attempt to use a window-specific code,
152 but instead should use the virtual terminal under which it was started. */
153 bool inhibit_window_system
;
155 /* If true, a filter or a sentinel is running. Tested to save the match
156 data on the first attempt to change it inside asynchronous code. */
157 bool running_asynch_code
;
159 #if defined (HAVE_X_WINDOWS) || defined (HAVE_NS)
160 /* If true, -d was specified, meaning we're using some window system. */
164 /* An address near the bottom of the stack.
165 Tells GC how to save a copy of the stack. */
168 #if defined (DOUG_LEA_MALLOC) || defined (GNU_LINUX)
169 /* The address where the heap starts (from the first sbrk (0) call). */
170 static void *my_heap_start
;
174 /* The gap between BSS end and heap start as far as we can tell. */
175 static uprintmax_t heap_bss_diff
;
178 /* To run as a daemon under Cocoa or Windows, we must do a fork+exec,
181 On Cocoa, CoreFoundation lib fails in forked process:
182 http://developer.apple.com/ReleaseNotes/
183 CoreFoundation/CoreFoundation.html)
185 On Windows, a Cygwin fork child cannot access the USER subsystem.
187 We mark being in the exec'd process by a daemon name argument of
188 form "--daemon=\nFD0,FD1\nNAME" where FD are the pipe file descriptors,
189 NAME is the original daemon name, if any. */
190 #if defined NS_IMPL_COCOA || (defined HAVE_NTGUI && defined CYGWIN)
191 # define DAEMON_MUST_EXEC
194 /* True means running Emacs without interactive terminal. */
197 /* True means remove site-lisp directories from load-path. */
200 /* Name for the server started by the daemon.*/
201 static char *daemon_name
;
204 /* Pipe used to send exit notification to the daemon parent at
208 HANDLE w32_daemon_event
;
211 /* Save argv and argc. */
215 static void sort_args (int argc
, char **argv
);
216 static void syms_of_emacs (void);
218 /* C99 needs each string to be at most 4095 characters, and the usage
219 strings below are split to not overflow this limit. */
220 static char const *const usage_message
[] =
223 Run Emacs, the extensible, customizable, self-documenting real-time\n\
224 display editor. The recommended way to start Emacs for normal editing\n\
225 is with no options at all.\n\
227 Run M-x info RET m emacs RET m emacs invocation RET inside Emacs to\n\
228 read the main documentation for these command-line arguments.\n\
230 Initialization options:\n\
234 --batch do not do interactive display; implies -q\n\
235 --chdir DIR change to directory DIR\n\
236 --daemon start a server in the background\n\
237 --debug-init enable Emacs Lisp debugger for init file\n\
238 --display, -d DISPLAY use X server DISPLAY\n\
241 --no-desktop do not load a saved desktop\n\
242 --no-init-file, -q load neither ~/.emacs nor default.el\n\
243 --no-loadup, -nl do not load loadup.el into bare Emacs\n\
244 --no-site-file do not load site-start.el\n\
245 --no-x-resources do not load X resources\n\
246 --no-site-lisp, -nsl do not add site-lisp directories to load-path\n\
247 --no-splash do not display a splash screen on startup\n\
248 --no-window-system, -nw do not communicate with X, ignoring $DISPLAY\n\
251 --quick, -Q equivalent to:\n\
252 -q --no-site-file --no-site-lisp --no-splash\n\
254 --script FILE run FILE as an Emacs Lisp script\n\
255 --terminal, -t DEVICE use DEVICE for terminal I/O\n\
256 --user, -u USER load ~USER/.emacs instead of your own\n\
262 FILE visit FILE using find-file\n\
263 +LINE go to line LINE in next FILE\n\
264 +LINE:COLUMN go to line LINE, column COLUMN, in next FILE\n\
265 --directory, -L DIR prepend DIR to load-path (with :DIR, append DIR)\n\
266 --eval EXPR evaluate Emacs Lisp expression EXPR\n\
267 --execute EXPR evaluate Emacs Lisp expression EXPR\n\
270 --file FILE visit FILE using find-file\n\
271 --find-file FILE visit FILE using find-file\n\
272 --funcall, -f FUNC call Emacs Lisp function FUNC with no arguments\n\
273 --insert FILE insert contents of FILE into current buffer\n\
274 --kill exit without asking for confirmation\n\
275 --load, -l FILE load Emacs Lisp FILE using the load function\n\
276 --visit FILE visit FILE using find-file\n\
282 --background-color, -bg COLOR window background color\n\
283 --basic-display, -D disable many display features;\n\
284 used for debugging Emacs\n\
285 --border-color, -bd COLOR main border color\n\
286 --border-width, -bw WIDTH width of main border\n\
289 --color, --color=MODE override color mode for character terminals;\n\
290 MODE defaults to `auto', and\n\
291 can also be `never', `always',\n\
292 or a mode name like `ansi8'\n\
293 --cursor-color, -cr COLOR color of the Emacs cursor indicating point\n\
294 --font, -fn FONT default font; must be fixed-width\n\
295 --foreground-color, -fg COLOR window foreground color\n\
298 --fullheight, -fh make the first frame high as the screen\n\
299 --fullscreen, -fs make the first frame fullscreen\n\
300 --fullwidth, -fw make the first frame wide as the screen\n\
301 --maximized, -mm make the first frame maximized\n\
302 --geometry, -g GEOMETRY window geometry\n\
305 --no-bitmap-icon, -nbi do not use picture of gnu for Emacs icon\n\
306 --iconic start Emacs in iconified state\n\
307 --internal-border, -ib WIDTH width between text and main border\n\
308 --line-spacing, -lsp PIXELS additional space to put between lines\n\
309 --mouse-color, -ms COLOR mouse cursor color in Emacs window\n\
310 --name NAME title for initial Emacs frame\n\
313 --no-blinking-cursor, -nbc disable blinking cursor\n\
314 --reverse-video, -r, -rv switch foreground and background\n\
315 --title, -T TITLE title for initial Emacs frame\n\
316 --vertical-scroll-bars, -vb enable vertical scroll bars\n\
317 --xrm XRESOURCES set additional X resources\n\
318 --parent-id XID set parent window\n\
319 --help display this help and exit\n\
320 --version output version information and exit\n\
324 You can generally also specify long option names with a single -; for\n\
325 example, -batch as well as --batch. You can use any unambiguous\n\
326 abbreviation for a --option.\n\
328 Various environment variables and window system resources also affect\n\
329 the operation of Emacs. See the main documentation.\n\
331 Report bugs to " PACKAGE_BUGREPORT
". First, please see the Bugs\n\
332 section of the Emacs manual or the file BUGS.\n"
336 /* True if handling a fatal error already. */
337 bool fatal_error_in_progress
;
340 /* NS autrelease pool, for memory management. */
341 static void *ns_pool
;
346 setlocale (int cat
, char const *locale
)
352 /* True if the current system locale uses UTF-8 encoding. */
358 mbstate_t mbs
= { 0 };
359 return mbrtowc (&wc
, "\xc4\x80", 2, &mbs
) == 2 && wc
== 0x100;
366 /* Report a fatal error due to signal SIG, output a backtrace of at
367 most BACKTRACE_LIMIT lines, and exit. */
369 terminate_due_to_signal (int sig
, int backtrace_limit
)
371 signal (sig
, SIG_DFL
);
373 /* If fatal error occurs in code below, avoid infinite recursion. */
374 if (! fatal_error_in_progress
)
376 fatal_error_in_progress
= 1;
378 totally_unblock_input ();
379 if (sig
== SIGTERM
|| sig
== SIGHUP
|| sig
== SIGINT
)
380 Fkill_emacs (make_number (sig
));
382 shut_down_emacs (sig
, Qnil
);
383 emacs_backtrace (backtrace_limit
);
386 /* Signal the same code; this time it will really be fatal.
387 Since we're in a signal handler, the signal is blocked, so we
388 have to unblock it if we want to really receive it. */
392 sigemptyset (&unblocked
);
393 sigaddset (&unblocked
, sig
);
394 pthread_sigmask (SIG_UNBLOCK
, &unblocked
, 0);
400 /* This shouldn't be executed, but it prevents a warning. */
404 /* Code for dealing with Lisp access to the Unix command line. */
407 init_cmdargs (int argc
, char **argv
, int skip_args
, char *original_pwd
)
410 Lisp_Object name
, dir
, handler
;
411 ptrdiff_t count
= SPECPDL_INDEX ();
412 Lisp_Object raw_name
;
413 AUTO_STRING (slash_colon
, "/:");
419 /* Must use argv[0] converted to UTF-8, as it begets many standard
420 file and directory names. */
422 char argv0
[MAX_UTF8_PATH
];
424 if (filename_from_ansi (argv
[0], argv0
) == 0)
425 raw_name
= build_unibyte_string (argv0
);
427 raw_name
= build_unibyte_string (argv
[0]);
430 raw_name
= build_unibyte_string (argv
[0]);
433 /* Add /: to the front of the name
434 if it would otherwise be treated as magic. */
435 handler
= Ffind_file_name_handler (raw_name
, Qt
);
436 if (! NILP (handler
))
437 raw_name
= concat2 (slash_colon
, raw_name
);
439 Vinvocation_name
= Ffile_name_nondirectory (raw_name
);
440 Vinvocation_directory
= Ffile_name_directory (raw_name
);
442 /* If we got no directory in argv[0], search PATH to find where
443 Emacs actually came from. */
444 if (NILP (Vinvocation_directory
))
447 int yes
= openp (Vexec_path
, Vinvocation_name
,
448 Vexec_suffixes
, &found
, make_number (X_OK
), false);
451 /* Add /: to the front of the name
452 if it would otherwise be treated as magic. */
453 handler
= Ffind_file_name_handler (found
, Qt
);
454 if (! NILP (handler
))
455 found
= concat2 (slash_colon
, found
);
456 Vinvocation_directory
= Ffile_name_directory (found
);
460 if (!NILP (Vinvocation_directory
)
461 && NILP (Ffile_name_absolute_p (Vinvocation_directory
)))
462 /* Emacs was started with relative path, like ./emacs.
466 original_pwd
? build_unibyte_string (original_pwd
) : Qnil
;
468 Vinvocation_directory
= Fexpand_file_name (Vinvocation_directory
, odir
);
471 Vinstallation_directory
= Qnil
;
473 if (!NILP (Vinvocation_directory
))
475 dir
= Vinvocation_directory
;
477 /* If we are running from the build directory, set DIR to the
478 src subdirectory of the Emacs tree, like on Posix
480 if (SBYTES (dir
) > sizeof ("/i386/") - 1
481 && 0 == strcmp (SSDATA (dir
) + SBYTES (dir
) - sizeof ("/i386/") + 1,
483 dir
= Fexpand_file_name (build_string ("../.."), dir
);
484 #else /* !WINDOWSNT */
486 name
= Fexpand_file_name (Vinvocation_name
, dir
);
489 Lisp_Object tem
, lib_src_exists
;
490 Lisp_Object etc_exists
, info_exists
;
492 /* See if dir contains subdirs for use by Emacs.
493 Check for the ones that would exist in a build directory,
494 not including lisp and info. */
495 tem
= Fexpand_file_name (build_string ("lib-src"), dir
);
496 lib_src_exists
= Ffile_exists_p (tem
);
499 /* MSDOS installations frequently remove lib-src, but we still
500 must set installation-directory, or else info won't find
501 its files (it uses the value of installation-directory). */
502 tem
= Fexpand_file_name (build_string ("info"), dir
);
503 info_exists
= Ffile_exists_p (tem
);
508 if (!NILP (lib_src_exists
) || !NILP (info_exists
))
510 tem
= Fexpand_file_name (build_string ("etc"), dir
);
511 etc_exists
= Ffile_exists_p (tem
);
512 if (!NILP (etc_exists
))
514 Vinstallation_directory
515 = Ffile_name_as_directory (dir
);
520 /* See if dir's parent contains those subdirs. */
521 tem
= Fexpand_file_name (build_string ("../lib-src"), dir
);
522 lib_src_exists
= Ffile_exists_p (tem
);
526 /* See the MSDOS commentary above. */
527 tem
= Fexpand_file_name (build_string ("../info"), dir
);
528 info_exists
= Ffile_exists_p (tem
);
533 if (!NILP (lib_src_exists
) || !NILP (info_exists
))
535 tem
= Fexpand_file_name (build_string ("../etc"), dir
);
536 etc_exists
= Ffile_exists_p (tem
);
537 if (!NILP (etc_exists
))
539 tem
= Fexpand_file_name (build_string (".."), dir
);
540 Vinstallation_directory
541 = Ffile_name_as_directory (tem
);
546 /* If the Emacs executable is actually a link,
547 next try the dir that the link points into. */
548 tem
= Ffile_symlink_p (name
);
551 name
= Fexpand_file_name (tem
, dir
);
552 dir
= Ffile_name_directory (name
);
559 Vcommand_line_args
= Qnil
;
561 for (i
= argc
- 1; i
>= 0; i
--)
563 if (i
== 0 || i
> skip_args
)
564 /* For the moment, we keep arguments as is in unibyte strings.
565 They are decoded in the function command-line after we know
566 locale-coding-system. */
568 = Fcons (build_unibyte_string (argv
[i
]), Vcommand_line_args
);
571 unbind_to (count
, Qnil
);
574 DEFUN ("invocation-name", Finvocation_name
, Sinvocation_name
, 0, 0, 0,
575 doc
: /* Return the program name that was used to run Emacs.
576 Any directory names are omitted. */)
579 return Fcopy_sequence (Vinvocation_name
);
582 DEFUN ("invocation-directory", Finvocation_directory
, Sinvocation_directory
,
584 doc
: /* Return the directory name in which the Emacs executable was located. */)
587 return Fcopy_sequence (Vinvocation_directory
);
591 /* Test whether the next argument in ARGV matches SSTR or a prefix of
592 LSTR (at least MINLEN characters). If so, then if VALPTR is non-null
593 (the argument is supposed to have a value) store in *VALPTR either
594 the next argument or the portion of this one after the equal sign.
595 ARGV is read starting at position *SKIPPTR; this index is advanced
596 by the number of arguments used.
598 Too bad we can't just use getopt for all of this, but we don't have
599 enough information to do it right. */
602 argmatch (char **argv
, int argc
, const char *sstr
, const char *lstr
,
603 int minlen
, char **valptr
, int *skipptr
)
609 /* Don't access argv[argc]; give up in advance. */
610 if (argc
<= *skipptr
+ 1)
613 arg
= argv
[*skipptr
+1];
616 if (strcmp (arg
, sstr
) == 0)
620 *valptr
= argv
[*skipptr
+2];
627 arglen
= (valptr
!= NULL
&& (p
= strchr (arg
, '=')) != NULL
628 ? p
- arg
: strlen (arg
));
629 if (lstr
== 0 || arglen
< minlen
|| strncmp (arg
, lstr
, arglen
) != 0)
631 else if (valptr
== NULL
)
642 else if (argv
[*skipptr
+2] != NULL
)
644 *valptr
= argv
[*skipptr
+2];
654 #ifdef DOUG_LEA_MALLOC
656 /* malloc can be invoked even before main (e.g. by the dynamic
657 linker), so the dumped malloc state must be restored as early as
658 possible using this special hook. */
661 malloc_initialize_hook (void)
665 if (!malloc_using_checking
)
666 /* Work around a bug in glibc's malloc. MALLOC_CHECK_ must be
667 ignored if the heap to be restored was constructed without
668 malloc checking. Can't use unsetenv, since that calls malloc. */
672 for (p
= environ
; p
&& *p
; p
++)
673 if (strncmp (*p
, "MALLOC_CHECK_=", 14) == 0)
682 malloc_set_state (malloc_state_ptr
);
683 #ifndef XMALLOC_OVERRUN_CHECK
684 free (malloc_state_ptr
);
689 if (my_heap_start
== 0)
690 my_heap_start
= sbrk (0);
691 malloc_using_checking
= getenv ("MALLOC_CHECK_") != NULL
;
695 void (*__malloc_initialize_hook
) (void) EXTERNALLY_VISIBLE
= malloc_initialize_hook
;
697 #endif /* DOUG_LEA_MALLOC */
699 /* Close standard output and standard error, reporting any write
700 errors as best we can. This is intended for use with atexit. */
702 close_output_streams (void)
704 if (close_stream (stdout
) != 0)
706 emacs_perror ("Write error to standard output");
707 _exit (EXIT_FAILURE
);
710 if (close_stream (stderr
) != 0)
711 _exit (EXIT_FAILURE
);
716 main (int argc
, char **argv
)
719 char stack_bottom_variable
;
720 bool do_initial_setlocale
;
723 #ifdef HAVE_SETRLIMIT
729 #ifdef DAEMON_MUST_EXEC
734 /* If we use --chdir, this records the original directory. */
735 char *original_pwd
= 0;
740 might_dump
= !initialized
;
746 if (my_heap_start
== 0)
747 my_heap_start
= sbrk (0);
749 heap_bss_diff
= (char *)my_heap_start
- max (my_endbss
, my_endbss_static
);
753 #if defined WINDOWSNT || defined HAVE_NTGUI
754 /* Set global variables used to detect Windows version. Do this as
755 early as possible. (unexw32.c calls this function as well, but
756 the additional call here is harmless.) */
757 cache_system_info ();
759 /* On Windows 9X, we have to load UNICOWS.DLL as early as possible,
760 to have non-stub implementations of APIs we need to convert file
761 names between UTF-8 and the system's ANSI codepage. */
762 maybe_load_unicows_dll ();
764 /* This has to be done before module_init is called below, so that
765 the latter could use the thread ID of the main thread. */
766 w32_init_main_thread ();
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
);
786 sort_args (argc
, argv
);
788 while (argv
[argc
]) argc
++;
790 if (argmatch (argv
, argc
, "-version", "--version", 3, NULL
, &skip_args
))
792 const char *version
, *copyright
;
795 Lisp_Object tem
, tem2
;
796 tem
= Fsymbol_value (intern_c_string ("emacs-version"));
797 tem2
= Fsymbol_value (intern_c_string ("emacs-copyright"));
800 fprintf (stderr
, "Invalid value of 'emacs-version'\n");
805 fprintf (stderr
, "Invalid value of 'emacs-copyright'\n");
810 version
= SSDATA (tem
);
811 copyright
= SSDATA (tem2
);
816 version
= emacs_version
;
817 copyright
= emacs_copyright
;
819 printf ("%s %s\n", PACKAGE_NAME
, version
);
820 printf ("%s\n", copyright
);
821 printf ("%s comes with ABSOLUTELY NO WARRANTY.\n", PACKAGE_NAME
);
822 printf ("You may redistribute copies of %s\n", PACKAGE_NAME
);
823 printf ("under the terms of the GNU General Public License.\n");
824 printf ("For more information about these matters, ");
825 printf ("see the file named COPYING.\n");
829 if (argmatch (argv
, argc
, "-chdir", "--chdir", 4, &ch_to_dir
, &skip_args
))
832 /* argv[] array is kept in its original ANSI codepage encoding,
833 we need to convert to UTF-8, for chdir to work. */
834 char newdir
[MAX_UTF8_PATH
];
836 filename_from_ansi (ch_to_dir
, newdir
);
839 original_pwd
= get_current_dir_name ();
840 if (chdir (ch_to_dir
) != 0)
842 fprintf (stderr
, "%s: Can't chdir to %s: %s\n",
843 argv
[0], ch_to_dir
, strerror (errno
));
848 dumping
= !initialized
&& (strcmp (argv
[argc
- 1], "dump") == 0
849 || strcmp (argv
[argc
- 1], "bootstrap") == 0);
851 #ifdef HAVE_PERSONALITY_LINUX32
852 if (dumping
&& ! getenv ("EMACS_HEAP_EXEC"))
854 /* Set this so we only do this once. */
855 xputenv ("EMACS_HEAP_EXEC=true");
857 /* A flag to turn off address randomization which is introduced
858 in linux kernel shipped with fedora core 4 */
859 #define ADD_NO_RANDOMIZE 0x0040000
860 personality (PER_LINUX32
| ADD_NO_RANDOMIZE
);
861 #undef ADD_NO_RANDOMIZE
863 execvp (argv
[0], argv
);
865 /* If the exec fails, try to dump anyway. */
866 emacs_perror (argv
[0]);
868 #endif /* HAVE_PERSONALITY_LINUX32 */
870 #if defined (HAVE_SETRLIMIT) && defined (RLIMIT_STACK) && !defined (CYGWIN)
871 /* Extend the stack space available. Don't do that if dumping,
872 since some systems (e.g. DJGPP) might define a smaller stack
873 limit at that time. And it's not needed on Cygwin, since emacs
874 is built with an 8MB stack. Moreover, the setrlimit call can
875 cause problems on Cygwin
876 (https://www.cygwin.com/ml/cygwin/2015-07/msg00096.html). */
879 && (!noninteractive
|| initialized
)
881 && !getrlimit (RLIMIT_STACK
, &rlim
))
884 /* Approximate the amount regex.c needs per unit of re_max_failures. */
885 int ratio
= 20 * sizeof (char *);
886 /* Then add 33% to cover the size of the smaller stacks that regex.c
887 successively allocates and discards, on its way to the maximum. */
889 /* Add in some extra to cover
890 what we're likely to use for other reasons. */
891 newlim
= re_max_failures
* ratio
+ 200000;
893 /* NetBSD (at least NetBSD 1.2G and former) has a bug in its
894 stack allocation routine for new process that the allocation
895 fails if stack limit is not on page boundary. So, round up the
896 new limit to page boundary. */
897 newlim
= (newlim
+ getpagesize () - 1) / getpagesize () * getpagesize ();
899 if (newlim
> rlim
.rlim_max
)
901 newlim
= rlim
.rlim_max
;
902 /* Don't let regex.c overflow the stack we have. */
903 re_max_failures
= (newlim
- 200000) / ratio
;
905 if (rlim
.rlim_cur
< newlim
)
906 rlim
.rlim_cur
= newlim
;
908 setrlimit (RLIMIT_STACK
, &rlim
);
910 #endif /* HAVE_SETRLIMIT and RLIMIT_STACK and not CYGWIN */
912 /* Record (approximately) where the stack begins. */
913 stack_bottom
= &stack_bottom_variable
;
917 emacs_backtrace (-1);
919 #if !defined SYSTEM_MALLOC && !defined HYBRID_MALLOC
920 /* Arrange to get warning messages as memory fills up. */
921 memory_warnings (0, malloc_warning
);
923 /* Call malloc at least once, to run malloc_initialize_hook.
924 Also call realloc and free for consistency. */
925 free (realloc (malloc (4), 4));
927 #endif /* not SYSTEM_MALLOC and not HYBRID_MALLOC */
930 SET_BINARY (fileno (stdin
));
932 SET_BINARY (fileno (stdout
));
935 /* Skip initial setlocale if LC_ALL is "C", as it's not needed in that case.
936 The build procedure uses this while dumping, to ensure that the
937 dumped Emacs does not have its system locale tables initialized,
938 as that might cause screwups when the dumped Emacs starts up. */
940 char *lc_all
= getenv ("LC_ALL");
941 do_initial_setlocale
= ! lc_all
|| strcmp (lc_all
, "C");
944 /* Set locale now, so that initial error messages are localized properly.
945 fixup_locale must wait until later, since it builds strings. */
946 if (do_initial_setlocale
)
947 setlocale (LC_ALL
, "");
948 text_quoting_flag
= using_utf8 ();
950 inhibit_window_system
= 0;
952 /* Handle the -t switch, which specifies filename to use as terminal. */
956 if (argmatch (argv
, argc
, "-t", "--terminal", 4, &term
, &skip_args
))
961 result
= emacs_open (term
, O_RDWR
, 0);
962 if (result
< 0 || fcntl (0, F_DUPFD_CLOEXEC
, 1) < 0)
964 char *errstring
= strerror (errno
);
965 fprintf (stderr
, "%s: %s: %s\n", argv
[0], term
, errstring
);
970 fprintf (stderr
, "%s: %s: not a tty\n", argv
[0], term
);
973 fprintf (stderr
, "Using %s\n", term
);
974 #ifdef HAVE_WINDOW_SYSTEM
975 inhibit_window_system
= 1; /* -t => -nw */
982 /* Command line option --no-windows is deprecated and thus not mentioned
983 in the manual and usage information. */
984 if (argmatch (argv
, argc
, "-nw", "--no-window-system", 6, NULL
, &skip_args
)
985 || argmatch (argv
, argc
, "-nw", "--no-windows", 6, NULL
, &skip_args
))
986 inhibit_window_system
= 1;
988 /* Handle the -batch switch, which means don't do interactive display. */
990 if (argmatch (argv
, argc
, "-batch", "--batch", 5, NULL
, &skip_args
))
993 Vundo_outer_limit
= Qnil
;
995 if (argmatch (argv
, argc
, "-script", "--script", 3, &junk
, &skip_args
))
997 noninteractive
= 1; /* Set batch mode. */
998 /* Convert --script to -scriptload, un-skip it, and sort again
999 so that it will be handled in proper sequence. */
1000 /* FIXME broken for --script=FILE - is that supposed to work? */
1001 argv
[skip_args
- 1] = (char *) "-scriptload";
1003 sort_args (argc
, argv
);
1006 /* Handle the --help option, which gives a usage message. */
1007 if (argmatch (argv
, argc
, "-help", "--help", 3, NULL
, &skip_args
))
1010 printf ("Usage: %s [OPTION-OR-FILENAME]...\n", argv
[0]);
1011 for (i
= 0; i
< ARRAYELTS (usage_message
); i
++)
1012 fputs (usage_message
[i
], stdout
);
1017 /* Make sure IS_DAEMON starts up as false. */
1020 w32_daemon_event
= NULL
;
1023 if (argmatch (argv
, argc
, "-daemon", "--daemon", 5, NULL
, &skip_args
)
1024 || argmatch (argv
, argc
, "-daemon", "--daemon", 5, &dname_arg
, &skip_args
))
1029 /* Start as a daemon: fork a new child process which will run the
1030 rest of the initialization code, then exit.
1032 Detaching a daemon requires the following steps:
1036 - close the tty file-descriptors
1038 We only want to do the last 2 steps once the daemon is ready to
1039 serve requests, i.e. after loading .emacs (initialization).
1040 OTOH initialization may start subprocesses (e.g. ispell) and these
1041 should be run from the proper process (the one that will end up
1042 running as daemon) and with the proper "session id" in order for
1043 them to keep working after detaching, so fork and setsid need to be
1044 performed before initialization.
1046 We want to avoid exiting before the server socket is ready, so
1047 use a pipe for synchronization. The parent waits for the child
1048 to close its end of the pipe (using `daemon-initialized')
1050 if (emacs_pipe (daemon_pipe
) != 0)
1052 fprintf (stderr
, "Cannot pipe!\n");
1056 #ifndef DAEMON_MUST_EXEC
1058 fprintf (stderr
, "\nWarning: due to a long standing Gtk+ bug\nhttp://bugzilla.gnome.org/show_bug.cgi?id=85715\n\
1059 Emacs might crash when run in daemon mode and the X11 connection is unexpectedly lost.\n\
1060 Using an Emacs configured with --with-x-toolkit=lucid does not have this problem.\n");
1061 #endif /* USE_GTK */
1063 #else /* DAEMON_MUST_EXEC */
1064 if (!dname_arg
|| !strchr (dname_arg
, '\n'))
1065 f
= fork (); /* in orig */
1067 f
= 0; /* in exec'd */
1068 #endif /* !DAEMON_MUST_EXEC */
1074 /* Close unused writing end of the pipe. */
1075 emacs_close (daemon_pipe
[1]);
1077 /* Just wait for the child to close its end of the pipe. */
1080 retval
= read (daemon_pipe
[0], &buf
, 1);
1082 while (retval
== -1 && errno
== EINTR
);
1086 fprintf (stderr
, "Error reading status from child\n");
1089 else if (retval
== 0)
1091 fprintf (stderr
, "Error: server did not start correctly\n");
1095 emacs_close (daemon_pipe
[0]);
1100 emacs_perror ("fork");
1101 exit (EXIT_CANCELED
);
1104 #ifdef DAEMON_MUST_EXEC
1106 /* In orig process, forked as child, OR in exec'd. */
1107 if (!dname_arg
|| !strchr (dname_arg
, '\n'))
1108 { /* In orig, child: now exec w/special daemon name. */
1111 snprintf (fdStr
, sizeof fdStr
,
1112 "--daemon=\n%d,%d\n%s", daemon_pipe
[0],
1113 daemon_pipe
[1], dname_arg
? dname_arg
: "");
1115 if (! (0 <= fdStrlen
&& fdStrlen
< sizeof fdStr
))
1117 fprintf (stderr
, "daemon: child name too long\n");
1118 exit (EXIT_CANNOT_INVOKE
);
1121 argv
[skip_args
] = fdStr
;
1123 fcntl (daemon_pipe
[0], F_SETFD
, 0);
1124 fcntl (daemon_pipe
[1], F_SETFD
, 0);
1125 execvp (argv
[0], argv
);
1126 emacs_perror (argv
[0]);
1127 exit (errno
== ENOENT
? EXIT_ENOENT
: EXIT_CANNOT_INVOKE
);
1130 /* In exec'd: parse special dname into pipe and name info. */
1131 if (!dname_arg
|| !strchr (dname_arg
, '\n')
1132 || strlen (dname_arg
) < 1 || strlen (dname_arg
) > 70)
1134 fprintf (stderr
, "emacs daemon: daemon name absent or too long\n");
1135 exit (EXIT_CANNOT_INVOKE
);
1137 dname_arg2
[0] = '\0';
1138 sscanf (dname_arg
, "\n%d,%d\n%s", &(daemon_pipe
[0]), &(daemon_pipe
[1]),
1140 dname_arg
= *dname_arg2
? dname_arg2
: NULL
;
1141 fcntl (daemon_pipe
[1], F_SETFD
, FD_CLOEXEC
);
1143 #endif /* DAEMON_MUST_EXEC */
1145 /* Close unused reading end of the pipe. */
1146 emacs_close (daemon_pipe
[0]);
1149 #elif defined(WINDOWSNT)
1150 /* Indicate that we want daemon mode. */
1151 w32_daemon_event
= CreateEvent (NULL
, TRUE
, FALSE
, W32_DAEMON_EVENT
);
1152 if (w32_daemon_event
== NULL
)
1154 fprintf (stderr
, "Couldn't create MS-Windows event for daemon: %s\n",
1159 fprintf (stderr
, "This platform does not support the -daemon flag.\n");
1163 daemon_name
= xstrdup (dname_arg
);
1166 #if defined HAVE_PTHREAD && !defined SYSTEM_MALLOC \
1167 && !defined DOUG_LEA_MALLOC && !defined HYBRID_MALLOC
1168 # ifndef CANNOT_DUMP
1169 /* Do not make gmalloc thread-safe when creating bootstrap-emacs, as
1170 that causes an infinite recursive loop with FreeBSD. See
1171 Bug#14569. The part of this bug involving Cygwin is no longer
1172 relevant, now that Cygwin defines HYBRID_MALLOC. */
1173 if (!noninteractive
|| initialized
)
1175 malloc_enable_thread ();
1178 init_signals (dumping
);
1180 noninteractive1
= noninteractive
;
1182 /* Perform basic initializations (not merely interning symbols). */
1189 init_charset_once ();
1190 init_coding_once ();
1191 init_syntax_once (); /* Create standard syntax table. */
1192 init_category_once (); /* Create standard category table. */
1193 init_casetab_once (); /* Must be done before init_buffer_once. */
1194 init_buffer_once (); /* Create buffer table and some buffers. */
1195 init_minibuf_once (); /* Create list of minibuffers. */
1196 /* Must precede init_window_once. */
1198 /* Call syms_of_xfaces before init_window_once because that
1199 function creates Vterminal_frame. Termcap frames now use
1200 faces, and the face implementation uses some symbols as
1203 /* XXX syms_of_keyboard uses some symbols in keymap.c. It would
1204 be better to arrange things not to have this dependency. */
1206 /* Call syms_of_keyboard before init_window_once because
1207 keyboard sets up symbols that include some face names that
1208 the X support will want to use. This can happen when
1209 CANNOT_DUMP is defined. */
1210 syms_of_keyboard ();
1212 /* Called before syms_of_fileio, because it sets up Qerror_condition. */
1214 syms_of_fns (); /* Before syms_of_charset which uses hashtables. */
1216 /* Before syms_of_coding to initialize Vgc_cons_threshold. */
1218 /* May call Ffuncall and so GC, thus the latter should be initialized. */
1220 /* Before syms_of_coding because it initializes Qcharsetp. */
1222 /* Before init_window_once, because it sets up the
1223 Vcoding_system_hash_table. */
1224 syms_of_coding (); /* This should be after syms_of_fileio. */
1226 init_window_once (); /* Init the window system. */
1227 #ifdef HAVE_WINDOW_SYSTEM
1228 init_fringe_once (); /* Swap bitmaps if necessary. */
1229 #endif /* HAVE_WINDOW_SYSTEM */
1234 if (do_initial_setlocale
)
1237 Vsystem_messages_locale
= Vprevious_system_messages_locale
;
1238 Vsystem_time_locale
= Vprevious_system_time_locale
;
1243 running_asynch_code
= 0;
1247 = argmatch (argv
, argc
, "-nl", "--no-loadup", 6, NULL
, &skip_args
);
1250 = argmatch (argv
, argc
, "-nsl", "--no-site-lisp", 11, NULL
, &skip_args
);
1253 ns_pool
= ns_alloc_autorelease_pool ();
1254 #ifdef NS_IMPL_GNUSTEP
1255 /* GNUstep stupidly resets our locale settings after we made them. */
1259 if (!noninteractive
)
1261 #ifdef NS_IMPL_COCOA
1262 /* Started from GUI? */
1263 /* FIXME: Do the right thing if getenv returns NULL, or if
1265 if (! inhibit_window_system
&& ! isatty (0) && ! ch_to_dir
)
1266 chdir (getenv ("HOME"));
1267 if (skip_args
< argc
)
1269 if (!strncmp (argv
[skip_args
], "-psn", 4))
1272 if (! ch_to_dir
) chdir (getenv ("HOME"));
1274 else if (skip_args
+1 < argc
&& !strncmp (argv
[skip_args
+1], "-psn", 4))
1277 if (! ch_to_dir
) chdir (getenv ("HOME"));
1282 #endif /* HAVE_NS */
1284 #ifdef HAVE_X_WINDOWS
1285 /* Stupid kludge to catch command-line display spec. We can't
1286 handle this argument entirely in window system dependent code
1287 because we don't even know which window system dependent code
1288 to run until we've recognized this argument. */
1290 char *displayname
= 0;
1291 int count_before
= skip_args
;
1293 /* Skip any number of -d options, but only use the last one. */
1296 int count_before_this
= skip_args
;
1298 if (argmatch (argv
, argc
, "-d", "--display", 3, &displayname
, &skip_args
))
1300 else if (argmatch (argv
, argc
, "-display", 0, 3, &displayname
, &skip_args
))
1305 count_before
= count_before_this
;
1308 /* If we have the form --display=NAME,
1309 convert it into -d name.
1310 This requires inserting a new element into argv. */
1311 if (displayname
&& count_before
< skip_args
)
1313 if (skip_args
== count_before
+ 1)
1315 memmove (argv
+ count_before
+ 3, argv
+ count_before
+ 2,
1316 (argc
- (count_before
+ 2)) * sizeof *argv
);
1317 argv
[count_before
+ 2] = displayname
;
1320 argv
[count_before
+ 1] = (char *) "-d";
1325 if (argmatch (argv
, argc
, "-Q", "--quick", 3, NULL
, &skip_args
)
1326 || argmatch (argv
, argc
, "-quick", 0, 2, NULL
, &skip_args
))
1330 /* Don't actually discard this arg. */
1331 skip_args
= count_before
;
1333 #else /* !HAVE_X_WINDOWS */
1336 int count_before
= skip_args
;
1338 if (argmatch (argv
, argc
, "-Q", "--quick", 3, NULL
, &skip_args
)
1339 || argmatch (argv
, argc
, "-quick", 0, 2, NULL
, &skip_args
))
1342 skip_args
= count_before
;
1346 /* argmatch must not be used after here,
1347 except when building temacs
1348 because the -d argument has not been skipped in skip_args. */
1351 /* Call early 'cause init_environment needs it. */
1353 /* Set defaults for several environment variables. */
1355 init_environment (argc
, argv
, skip_args
);
1361 globals_of_kqueue ();
1364 #ifdef HAVE_GFILENOTIFY
1365 globals_of_gfilenotify ();
1370 #ifdef HAVE_W32NOTIFY
1371 globals_of_w32notify ();
1373 /* Initialize environment from registry settings. */
1374 init_environment (argv
);
1375 init_ntproc (dumping
); /* must precede init_editfns. */
1378 /* Initialize and GC-protect Vinitial_environment and
1379 Vprocess_environment before set_initial_environment fills them
1382 syms_of_callproc ();
1383 /* egetenv is a pretty low-level facility, which may get called in
1384 many circumstances; it seems flimsy to put off initializing it
1385 until calling init_callproc. Do not do it when dumping. */
1387 set_initial_environment ();
1389 /* AIX crashes are reported in system versions 3.2.3 and 3.2.4
1390 if this is not done. Do it after set_global_environment so that we
1391 don't pollute Vglobal_environment. */
1392 /* Setting LANG here will defeat the startup locale processing... */
1397 /* Init buffer storage and default directory of main buffer. */
1398 init_buffer (initialized
);
1400 init_callproc_1 (); /* Must precede init_cmdargs and init_sys_modes. */
1402 /* Must precede init_lread. */
1403 init_cmdargs (argc
, argv
, skip_args
, original_pwd
);
1407 /* Erase any pre-dump messages in the message log, to avoid confusion. */
1408 Lisp_Object old_log_max
;
1409 old_log_max
= Vmessage_log_max
;
1410 XSETFASTINT (Vmessage_log_max
, 0);
1411 message_dolog ("", 0, 1, 0);
1412 Vmessage_log_max
= old_log_max
;
1415 init_callproc (); /* Must follow init_cmdargs but not init_sys_modes. */
1419 /* Check to see if Emacs has been installed correctly. */
1420 check_windows_init_file ();
1423 /* Intern the names of all standard functions and variables;
1424 define standard keys. */
1428 /* The basic levels of Lisp must come first. Note that
1429 syms_of_data and some others have already been called. */
1434 syms_of_floatfns ();
1437 syms_of_bytecode ();
1439 syms_of_casefiddle ();
1441 syms_of_category ();
1443 syms_of_character ();
1450 syms_of_filelock ();
1453 /* syms_of_keymap (); */
1461 syms_of_terminal ();
1472 syms_of_textprop ();
1473 syms_of_composite ();
1476 #endif /* WINDOWSNT */
1483 #ifdef HAVE_WINDOW_SYSTEM
1486 #endif /* HAVE_WINDOW_SYSTEM */
1487 #ifdef HAVE_X_WINDOWS
1493 syms_of_xsettings ();
1500 #endif /* HAVE_X_WINDOWS */
1507 syms_of_decompress ();
1517 #endif /* HAVE_NTGUI */
1519 #if defined WINDOWSNT || defined HAVE_NTGUI
1520 syms_of_w32select ();
1527 syms_of_win16select ();
1534 syms_of_nsselect ();
1536 #endif /* HAVE_NS */
1542 #endif /* HAVE_INOTIFY */
1546 #endif /* HAVE_KQUEUE */
1548 #ifdef HAVE_GFILENOTIFY
1549 syms_of_gfilenotify ();
1550 #endif /* HAVE_GFILENOTIFY */
1553 syms_of_dbusbind ();
1554 #endif /* HAVE_DBUS */
1558 #ifdef HAVE_W32NOTIFY
1559 syms_of_w32notify ();
1560 #endif /* HAVE_W32NOTIFY */
1561 #endif /* WINDOWSNT */
1563 syms_of_profiler ();
1565 keys_of_casefiddle ();
1568 keys_of_keyboard ();
1574 /* Initialization that must be done even if the global variable
1575 initialized is non zero. */
1577 globals_of_w32font ();
1578 globals_of_w32fns ();
1579 globals_of_w32menu ();
1580 #endif /* HAVE_NTGUI */
1582 #if defined WINDOWSNT || defined HAVE_NTGUI
1583 globals_of_w32select ();
1589 /* This calls putenv and so must precede init_process_emacs. Also,
1590 it sets Voperating_system_release, which init_process_emacs uses. */
1591 init_editfns (dumping
);
1593 /* These two call putenv. */
1601 /* This can create a thread that may call getenv, so it must follow
1602 all calls to putenv and setenv. Also, this sets up
1603 add_keyboard_wait_descriptor, which init_display uses. */
1604 init_process_emacs ();
1606 init_keyboard (); /* This too must precede init_sys_modes. */
1607 if (!noninteractive
)
1608 init_display (); /* Determine terminal type. Calls init_sys_modes. */
1611 init_crit (); /* w32notify.c needs this in batch mode. */
1612 #endif /* HAVE_W32NOTIFY */
1614 #ifdef HAVE_WINDOW_SYSTEM
1616 #endif /* HAVE_WINDOW_SYSTEM */
1624 /* Handle -l loadup, args passed by Makefile. */
1625 if (argmatch (argv
, argc
, "-l", "--load", 3, &file
, &skip_args
))
1628 char file_utf8
[MAX_UTF8_PATH
];
1630 if (filename_from_ansi (file
, file_utf8
) == 0)
1633 Vtop_level
= list2 (Qload
, build_unibyte_string (file
));
1635 /* Unless next switch is -nl, load "loadup.el" first thing. */
1637 Vtop_level
= list2 (Qload
, build_string ("loadup.el"));
1640 /* Set up for profiling. This is known to work on FreeBSD,
1641 GNU/Linux and MinGW. It might work on some other systems too.
1642 Give it a try and tell us if it works on your system. To compile
1643 for profiling, use the configure option --enable-profiling. */
1644 #if defined (__FreeBSD__) || defined (GNU_LINUX) || defined (__MINGW32__)
1649 extern unsigned char etext
asm ("etext");
1655 monstartup ((uintptr_t) __executable_start
, (uintptr_t) &etext
);
1664 /* Enter editor command loop. This never returns. */
1670 /* Sort the args so we can find the most important ones
1671 at the beginning of argv. */
1673 /* First, here's a table of all the standard options. */
1675 struct standard_args
1678 const char *longname
;
1683 static const struct standard_args standard_args
[] =
1685 { "-version", "--version", 150, 0 },
1686 { "-chdir", "--chdir", 130, 1 },
1687 { "-t", "--terminal", 120, 1 },
1688 { "-nw", "--no-window-system", 110, 0 },
1689 { "-nw", "--no-windows", 110, 0 },
1690 { "-batch", "--batch", 100, 0 },
1691 { "-script", "--script", 100, 1 },
1692 { "-daemon", "--daemon", 99, 0 },
1693 { "-help", "--help", 90, 0 },
1694 { "-nl", "--no-loadup", 70, 0 },
1695 { "-nsl", "--no-site-lisp", 65, 0 },
1696 /* -d must come last before the options handled in startup.el. */
1697 { "-d", "--display", 60, 1 },
1698 { "-display", 0, 60, 1 },
1699 /* Now for the options handled in `command-line' (startup.el). */
1700 /* (Note that to imply -nsl, -Q is partially handled here.) */
1701 { "-Q", "--quick", 55, 0 },
1702 { "-quick", 0, 55, 0 },
1703 { "-q", "--no-init-file", 50, 0 },
1704 { "-no-init-file", 0, 50, 0 },
1705 { "-no-x-resources", "--no-x-resources", 40, 0 },
1706 { "-no-site-file", "--no-site-file", 40, 0 },
1707 { "-u", "--user", 30, 1 },
1708 { "-user", 0, 30, 1 },
1709 { "-debug-init", "--debug-init", 20, 0 },
1710 { "-iconic", "--iconic", 15, 0 },
1711 { "-D", "--basic-display", 12, 0},
1712 { "-basic-display", 0, 12, 0},
1713 { "-nbc", "--no-blinking-cursor", 12, 0 },
1714 /* Now for the options handled in `command-line-1' (startup.el). */
1715 { "-nbi", "--no-bitmap-icon", 10, 0 },
1716 { "-bg", "--background-color", 10, 1 },
1717 { "-background", 0, 10, 1 },
1718 { "-fg", "--foreground-color", 10, 1 },
1719 { "-foreground", 0, 10, 1 },
1720 { "-bd", "--border-color", 10, 1 },
1721 { "-bw", "--border-width", 10, 1 },
1722 { "-ib", "--internal-border", 10, 1 },
1723 { "-ms", "--mouse-color", 10, 1 },
1724 { "-cr", "--cursor-color", 10, 1 },
1725 { "-fn", "--font", 10, 1 },
1726 { "-font", 0, 10, 1 },
1727 { "-fs", "--fullscreen", 10, 0 },
1728 { "-fw", "--fullwidth", 10, 0 },
1729 { "-fh", "--fullheight", 10, 0 },
1730 { "-mm", "--maximized", 10, 0 },
1731 { "-g", "--geometry", 10, 1 },
1732 { "-geometry", 0, 10, 1 },
1733 { "-T", "--title", 10, 1 },
1734 { "-title", 0, 10, 1 },
1735 { "-name", "--name", 10, 1 },
1736 { "-xrm", "--xrm", 10, 1 },
1737 { "-parent-id", "--parent-id", 10, 1 },
1738 { "-r", "--reverse-video", 5, 0 },
1740 { "-reverse", 0, 5, 0 },
1741 { "-hb", "--horizontal-scroll-bars", 5, 0 },
1742 { "-vb", "--vertical-scroll-bars", 5, 0 },
1743 { "-color", "--color", 5, 0},
1744 { "-no-splash", "--no-splash", 3, 0 },
1745 { "-no-desktop", "--no-desktop", 3, 0 },
1747 { "-NSAutoLaunch", 0, 5, 1 },
1748 { "-NXAutoLaunch", 0, 5, 1 },
1749 { "-_NSMachLaunch", 0, 85, 1 },
1750 { "-MachLaunch", 0, 85, 1 },
1751 { "-macosx", 0, 85, 0 },
1752 { "-NSHost", 0, 85, 1 },
1754 /* These have the same priority as ordinary file name args,
1755 so they are not reordered with respect to those. */
1756 { "-L", "--directory", 0, 1 },
1757 { "-directory", 0, 0, 1 },
1758 { "-l", "--load", 0, 1 },
1759 { "-load", 0, 0, 1 },
1760 /* This has no longname, because using --scriptload confuses sort_args,
1761 because then the --script long option seems to match twice; ie
1762 you can't have a long option which is a prefix of another long
1763 option. In any case, this is entirely an internal option. */
1764 { "-scriptload", NULL
, 0, 1 },
1765 { "-f", "--funcall", 0, 1 },
1766 { "-funcall", 0, 0, 1 },
1767 { "-eval", "--eval", 0, 1 },
1768 { "-execute", "--execute", 0, 1 },
1769 { "-find-file", "--find-file", 0, 1 },
1770 { "-visit", "--visit", 0, 1 },
1771 { "-file", "--file", 0, 1 },
1772 { "-insert", "--insert", 0, 1 },
1774 { "-NXOpen", 0, 0, 1 },
1775 { "-NXOpenTemp", 0, 0, 1 },
1776 { "-NSOpen", 0, 0, 1 },
1777 { "-NSOpenTemp", 0, 0, 1 },
1778 { "-GSFilePath", 0, 0, 1 },
1780 /* This should be processed after ordinary file name args and the like. */
1781 { "-kill", "--kill", -10, 0 },
1784 /* Reorder the elements of ARGV (assumed to have ARGC elements)
1785 so that the highest priority ones come first.
1786 Do not change the order of elements of equal priority.
1787 If an option takes an argument, keep it and its argument together.
1789 If an option that takes no argument appears more
1790 than once, eliminate all but one copy of it. */
1793 sort_args (int argc
, char **argv
)
1795 char **new = xmalloc (argc
* sizeof *new);
1796 /* For each element of argv,
1797 the corresponding element of options is:
1798 0 for an option that takes no arguments,
1799 1 for an option that takes one argument, etc.
1800 -1 for an ordinary non-option argument. */
1801 int *options
= xnmalloc (argc
, sizeof *options
);
1802 int *priority
= xnmalloc (argc
, sizeof *priority
);
1804 int incoming_used
= 1;
1808 /* Categorize all the options,
1809 and figure out which argv elts are option arguments. */
1810 for (from
= 1; from
< argc
; from
++)
1814 if (argv
[from
][0] == '-')
1818 /* If we have found "--", don't consider
1819 any more arguments as options. */
1820 if (argv
[from
][1] == '-' && argv
[from
][2] == 0)
1822 /* Leave the "--", and everything following it, at the end. */
1823 for (; from
< argc
; from
++)
1825 priority
[from
] = -100;
1831 /* Look for a match with a known old-fashioned option. */
1832 for (i
= 0; i
< ARRAYELTS (standard_args
); i
++)
1833 if (!strcmp (argv
[from
], standard_args
[i
].name
))
1835 options
[from
] = standard_args
[i
].nargs
;
1836 priority
[from
] = standard_args
[i
].priority
;
1837 if (from
+ standard_args
[i
].nargs
>= argc
)
1838 fatal ("Option '%s' requires an argument\n", argv
[from
]);
1839 from
+= standard_args
[i
].nargs
;
1843 /* Look for a match with a known long option.
1844 MATCH is -1 if no match so far, -2 if two or more matches so far,
1845 >= 0 (the table index of the match) if just one match so far. */
1846 if (argv
[from
][1] == '-')
1848 char const *equals
= strchr (argv
[from
], '=');
1850 equals
? equals
- argv
[from
] : strlen (argv
[from
]);
1854 for (i
= 0; i
< ARRAYELTS (standard_args
); i
++)
1855 if (standard_args
[i
].longname
1856 && !strncmp (argv
[from
], standard_args
[i
].longname
,
1865 /* If we found exactly one match, use that. */
1868 options
[from
] = standard_args
[match
].nargs
;
1869 priority
[from
] = standard_args
[match
].priority
;
1870 /* If --OPTION=VALUE syntax is used,
1871 this option uses just one argv element. */
1874 if (from
+ options
[from
] >= argc
)
1875 fatal ("Option '%s' requires an argument\n", argv
[from
]);
1876 from
+= options
[from
];
1878 /* FIXME When match < 0, shouldn't there be some error,
1879 or at least indication to the user that there was a
1886 /* Copy the arguments, in order of decreasing priority, to NEW. */
1888 while (incoming_used
< argc
)
1891 int best_priority
= -9999;
1893 /* Find the highest priority remaining option.
1894 If several have equal priority, take the first of them. */
1895 for (from
= 1; from
< argc
; from
++)
1897 if (argv
[from
] != 0 && priority
[from
] > best_priority
)
1899 best_priority
= priority
[from
];
1902 /* Skip option arguments--they are tied to the options. */
1903 if (options
[from
] > 0)
1904 from
+= options
[from
];
1910 /* Copy the highest priority remaining option, with its args, to NEW.
1911 Unless it is a duplicate of the previous one. */
1912 if (! (options
[best
] == 0
1913 && ! strcmp (new[to
- 1], argv
[best
])))
1915 new[to
++] = argv
[best
];
1916 for (i
= 0; i
< options
[best
]; i
++)
1917 new[to
++] = argv
[best
+ i
+ 1];
1920 incoming_used
+= 1 + (options
[best
] > 0 ? options
[best
] : 0);
1922 /* Clear out this option in ARGV. */
1924 for (i
= 0; i
< options
[best
]; i
++)
1925 argv
[best
+ i
+ 1] = 0;
1928 /* If duplicate options were deleted, fill up extra space with null ptrs. */
1932 memcpy (argv
, new, sizeof (char *) * argc
);
1939 DEFUN ("kill-emacs", Fkill_emacs
, Skill_emacs
, 0, 1, "P",
1940 doc
: /* Exit the Emacs job and kill it.
1941 If ARG is an integer, return ARG as the exit program code.
1942 If ARG is a string, stuff it as keyboard input.
1944 This function is called upon receipt of the signals SIGTERM
1945 or SIGHUP, and upon SIGINT in batch mode.
1947 The value of `kill-emacs-hook', if not void,
1948 is a list of functions (of no args),
1949 all of which are called before Emacs is actually killed. */
1950 attributes
: noreturn
)
1955 /* Fsignal calls emacs_abort () if it sees that waiting_for_input is
1957 waiting_for_input
= 0;
1958 run_hook (Qkill_emacs_hook
);
1960 #ifdef HAVE_X_WINDOWS
1961 /* Transfer any clipboards we own to the clipboard manager. */
1962 x_clipboard_manager_save_all ();
1965 shut_down_emacs (0, (STRINGP (arg
) && !feof (stdin
)) ? arg
: Qnil
);
1968 ns_release_autorelease_pool (ns_pool
);
1971 /* If we have an auto-save list file,
1972 kill it because we are exiting Emacs deliberately (not crashing).
1973 Do it after shut_down_emacs, which does an auto-save. */
1974 if (STRINGP (Vauto_save_list_file_name
))
1976 Lisp_Object listfile
;
1977 listfile
= Fexpand_file_name (Vauto_save_list_file_name
, Qnil
);
1978 unlink (SSDATA (listfile
));
1982 exit_code
= (XINT (arg
) < 0
1983 ? XINT (arg
) | INT_MIN
1984 : XINT (arg
) & INT_MAX
);
1986 exit_code
= EXIT_SUCCESS
;
1991 /* Perform an orderly shutdown of Emacs. Autosave any modified
1992 buffers, kill any child processes, clean up the terminal modes (if
1993 we're in the foreground), and other stuff like that. Don't perform
1994 any redisplay; this may be called when Emacs is shutting down in
1995 the background, or after its X connection has died.
1997 If SIG is a signal number, print a message for it.
1999 This is called by fatal signal handlers, X protocol error handlers,
2003 shut_down_emacs (int sig
, Lisp_Object stuff
)
2005 /* Prevent running of hooks from now on. */
2008 /* Don't update display from now on. */
2009 Vinhibit_redisplay
= Qt
;
2011 /* If we are controlling the terminal, reset terminal modes. */
2014 pid_t pgrp
= getpgrp ();
2015 pid_t tpgrp
= tcgetpgrp (0);
2016 if ((tpgrp
!= -1) && tpgrp
== pgrp
)
2018 reset_all_sys_modes ();
2019 if (sig
&& sig
!= SIGTERM
)
2021 static char const format
[] = "Fatal error %d: ";
2022 char buf
[sizeof format
- 2 + INT_STRLEN_BOUND (int)];
2023 int buflen
= sprintf (buf
, format
, sig
);
2024 char const *sig_desc
= safe_strsignal (sig
);
2025 emacs_write (STDERR_FILENO
, buf
, buflen
);
2026 emacs_write (STDERR_FILENO
, sig_desc
, strlen (sig_desc
));
2032 reset_all_sys_modes ();
2035 stuff_buffered_input (stuff
);
2037 inhibit_sentinels
= 1;
2038 kill_buffer_processes (Qnil
);
2039 Fdo_auto_save (Qt
, Qnil
);
2041 unlock_all_files ();
2043 /* There is a tendency for a SIGIO signal to arrive within exit,
2044 and cause a SIGHUP because the input descriptor is already closed. */
2047 /* Do this only if terminating normally, we want glyph matrices
2048 etc. in a core dump. */
2049 if (sig
== 0 || sig
== SIGTERM
)
2051 check_glyph_memory ();
2052 check_message_stack ();
2060 ns_term_shutdown (sig
);
2064 xml_cleanup_parser ();
2078 DEFUN ("dump-emacs", Fdump_emacs
, Sdump_emacs
, 2, 2, 0,
2079 doc
: /* Dump current state of Emacs into executable file FILENAME.
2080 Take symbols from SYMFILE (presumably the file you executed to run Emacs).
2081 This is used in the file `loadup.el' when building Emacs.
2083 You must run Emacs in batch mode in order to dump it. */)
2084 (Lisp_Object filename
, Lisp_Object symfile
)
2088 ptrdiff_t count
= SPECPDL_INDEX ();
2092 if (! noninteractive
)
2093 error ("Dumping Emacs works only in batch mode");
2096 error ("Emacs can be dumped only once");
2100 /* Warn if the gap between BSS end and heap start is larger than this. */
2101 # define MAX_HEAP_BSS_DIFF (1024*1024)
2103 if (heap_bss_diff
> MAX_HEAP_BSS_DIFF
)
2105 fprintf (stderr
, "**************************************************\n");
2106 fprintf (stderr
, "Warning: Your system has a gap between BSS and the\n");
2107 fprintf (stderr
, "heap (%"pMu
" bytes). This usually means that exec-shield\n",
2109 fprintf (stderr
, "or something similar is in effect. The dump may\n");
2110 fprintf (stderr
, "fail because of this. See the section about\n");
2111 fprintf (stderr
, "exec-shield in etc/PROBLEMS for more information.\n");
2112 fprintf (stderr
, "**************************************************\n");
2114 #endif /* GNU_LINUX */
2116 /* Bind `command-line-processed' to nil before dumping,
2117 so that the dumped Emacs will process its command line
2118 and set up to work with X windows if appropriate. */
2119 symbol
= intern ("command-line-processed");
2120 specbind (symbol
, Qnil
);
2122 CHECK_STRING (filename
);
2123 filename
= Fexpand_file_name (filename
, Qnil
);
2124 filename
= ENCODE_FILE (filename
);
2125 if (!NILP (symfile
))
2127 CHECK_STRING (symfile
);
2128 if (SCHARS (symfile
))
2130 symfile
= Fexpand_file_name (symfile
, Qnil
);
2131 symfile
= ENCODE_FILE (symfile
);
2136 Vpurify_flag
= Qnil
;
2139 /* Tell malloc where start of impure now is. */
2140 /* Also arrange for warnings when nearly out of space. */
2141 #if !defined SYSTEM_MALLOC && !defined HYBRID_MALLOC
2143 /* On Windows, this was done before dumping, and that once suffices.
2144 Meanwhile, my_edata is not valid on Windows. */
2145 memory_warnings (my_edata
, malloc_warning
);
2146 #endif /* not WINDOWSNT */
2147 #endif /* not SYSTEM_MALLOC and not HYBRID_MALLOC */
2148 #ifdef DOUG_LEA_MALLOC
2149 malloc_state_ptr
= malloc_get_state ();
2152 unexec (SSDATA (filename
), !NILP (symfile
) ? SSDATA (symfile
) : 0);
2154 #ifdef DOUG_LEA_MALLOC
2155 free (malloc_state_ptr
);
2159 Vlibrary_cache
= Qnil
;
2161 #ifdef HAVE_WINDOW_SYSTEM
2162 reset_image_types ();
2167 return unbind_to (count
, Qnil
);
2170 #endif /* not CANNOT_DUMP */
2173 /* Recover from setlocale (LC_ALL, ""). */
2177 /* The Emacs Lisp reader needs LC_NUMERIC to be "C",
2178 so that numbers are read and printed properly for Emacs Lisp. */
2179 setlocale (LC_NUMERIC
, "C");
2182 /* Set system locale CATEGORY, with previous locale *PLOCALE, to
2185 synchronize_locale (int category
, Lisp_Object
*plocale
, Lisp_Object desired_locale
)
2187 if (! EQ (*plocale
, desired_locale
))
2189 *plocale
= desired_locale
;
2191 /* Changing categories like LC_TIME usually requires to specify
2192 an encoding suitable for the new locale, but MS-Windows's
2193 'setlocale' will only switch the encoding when LC_ALL is
2194 specified. So we ignore CATEGORY, use LC_ALL instead, and
2195 then restore LC_NUMERIC to "C", so reading and printing
2196 numbers is unaffected. */
2197 setlocale (LC_ALL
, (STRINGP (desired_locale
)
2198 ? SSDATA (desired_locale
)
2201 #else /* !WINDOWSNT */
2202 setlocale (category
, (STRINGP (desired_locale
)
2203 ? SSDATA (desired_locale
)
2205 #endif /* !WINDOWSNT */
2209 /* Set system time locale to match Vsystem_time_locale, if possible. */
2211 synchronize_system_time_locale (void)
2213 synchronize_locale (LC_TIME
, &Vprevious_system_time_locale
,
2214 Vsystem_time_locale
);
2217 /* Set system messages locale to match Vsystem_messages_locale, if
2220 synchronize_system_messages_locale (void)
2223 synchronize_locale (LC_MESSAGES
, &Vprevious_system_messages_locale
,
2224 Vsystem_messages_locale
);
2227 #endif /* HAVE_SETLOCALE */
2231 decode_env_path (const char *evarname
, const char *defalt
, bool empty
)
2233 const char *path
, *p
;
2234 Lisp_Object lpath
, element
, tem
;
2235 /* Default is to use "." for empty path elements.
2236 But if argument EMPTY is true, use nil instead. */
2237 Lisp_Object empty_element
= empty
? Qnil
: build_string (".");
2240 static const char *emacs_dir_env
= "%emacs_dir%/";
2241 const size_t emacs_dir_len
= strlen (emacs_dir_env
);
2242 const char *edir
= egetenv ("emacs_dir");
2243 char emacs_dir
[MAX_UTF8_PATH
];
2245 /* egetenv looks in process-environment, which holds the variables
2246 in their original system-locale encoding. We need emacs_dir to
2249 filename_from_ansi (edir
, emacs_dir
);
2252 /* It's okay to use getenv here, because this function is only used
2253 to initialize variables when Emacs starts up, and isn't called
2256 path
= getenv (evarname
);
2267 /* Ensure values from the environment use the proper directory separator. */
2273 char *path_utf8
, *q
, *d
;
2276 /* Convert each element of PATH to UTF-8. */
2277 p
= path_copy
= alloca (strlen (path
) + 1);
2278 strcpy (path_copy
, path
);
2279 d
= path_utf8
= alloca (4 * strlen (path
) + 1);
2282 q
= _mbschr (p
, SEPCHAR
);
2285 cnv_result
= filename_from_ansi (p
, d
);
2290 /* If conversion of this PATH elements fails, make sure
2291 destination pointer will stay put, thus effectively
2292 ignoring the offending element. */
2293 if (cnv_result
== 0)
2299 else if (cnv_result
!= 0 && d
> path_utf8
)
2300 d
[-1] = '\0'; /* remove last semi-colon and null-terminate PATH */
2302 path_copy
= path_utf8
;
2304 path_copy
= alloca (strlen (path
) + 1);
2305 strcpy (path_copy
, path
);
2307 dostounix_filename (path_copy
);
2314 p
= strchr (path
, SEPCHAR
);
2316 p
= path
+ strlen (path
);
2317 element
= ((p
- path
) ? make_unibyte_string (path
, p
- path
)
2319 if (! NILP (element
))
2322 /* Relative file names in the default path are interpreted as
2323 being relative to $emacs_dir. */
2324 if (edir
&& defaulted
2325 && strncmp (path
, emacs_dir_env
, emacs_dir_len
) == 0)
2326 element
= Fexpand_file_name (Fsubstring
2328 make_number (emacs_dir_len
),
2330 build_unibyte_string (emacs_dir
));
2333 /* Add /: to the front of the name
2334 if it would otherwise be treated as magic. */
2335 tem
= Ffind_file_name_handler (element
, Qt
);
2337 /* However, if the handler says "I'm safe",
2338 don't bother adding /:. */
2342 prop
= Fget (tem
, intern ("safe-magic"));
2349 AUTO_STRING (slash_colon
, "/:");
2350 element
= concat2 (slash_colon
, element
);
2352 } /* !NILP (element) */
2354 lpath
= Fcons (element
, lpath
);
2360 return Fnreverse (lpath
);
2363 DEFUN ("daemonp", Fdaemonp
, Sdaemonp
, 0, 0, 0,
2364 doc
: /* Return non-nil if the current emacs process is a daemon.
2365 If the daemon was given a name argument, return that name. */)
2370 return build_string (daemon_name
);
2377 DEFUN ("daemon-initialized", Fdaemon_initialized
, Sdaemon_initialized
, 0, 0, 0,
2378 doc
: /* Mark the Emacs daemon as being initialized.
2379 This finishes the daemonization process by doing the other half of detaching
2380 from the parent process and its tty file descriptors. */)
2386 error ("This function can only be called if emacs is run as a daemon");
2388 if (!DAEMON_RUNNING
)
2389 error ("The daemon has already been initialized");
2391 if (NILP (Vafter_init_time
))
2392 error ("This function can only be called after loading the init files");
2396 /* Get rid of stdin, stdout and stderr. */
2397 nfd
= emacs_open ("/dev/null", O_RDWR
, 0);
2399 err
|= dup2 (nfd
, 0) < 0;
2400 err
|= dup2 (nfd
, 1) < 0;
2401 err
|= dup2 (nfd
, 2) < 0;
2402 err
|= emacs_close (nfd
) != 0;
2404 /* Closing the pipe will notify the parent that it can exit.
2405 FIXME: In case some other process inherited the pipe, closing it here
2406 won't notify the parent because it's still open elsewhere, so we
2407 additionally send a byte, just to make sure the parent really exits.
2408 Instead, we should probably close the pipe in start-process and
2409 call-process to make sure the pipe is never inherited by
2411 err
|= write (daemon_pipe
[1], "\n", 1) < 0;
2412 err
|= emacs_close (daemon_pipe
[1]) != 0;
2413 /* Set it to an invalid value so we know we've already run this function. */
2414 daemon_pipe
[1] = -1;
2415 #else /* WINDOWSNT */
2416 /* Signal the waiting emacsclient process. */
2417 err
|= SetEvent (w32_daemon_event
) == 0;
2418 err
|= CloseHandle (w32_daemon_event
) == 0;
2419 /* Set it to an invalid value so we know we've already run this function. */
2420 w32_daemon_event
= INVALID_HANDLE_VALUE
;
2424 error ("I/O error during daemon initialization");
2429 syms_of_emacs (void)
2431 DEFSYM (Qfile_name_handler_alist
, "file-name-handler-alist");
2432 DEFSYM (Qrisky_local_variable
, "risky-local-variable");
2433 DEFSYM (Qkill_emacs
, "kill-emacs");
2434 DEFSYM (Qkill_emacs_hook
, "kill-emacs-hook");
2437 defsubr (&Sdump_emacs
);
2440 defsubr (&Skill_emacs
);
2442 defsubr (&Sinvocation_name
);
2443 defsubr (&Sinvocation_directory
);
2444 defsubr (&Sdaemonp
);
2445 defsubr (&Sdaemon_initialized
);
2447 DEFVAR_LISP ("command-line-args", Vcommand_line_args
,
2448 doc
: /* Args passed by shell to Emacs, as a list of strings.
2449 Many arguments are deleted from the list as they are processed. */);
2451 DEFVAR_LISP ("system-type", Vsystem_type
,
2452 doc
: /* The value is a symbol indicating the type of operating system you are using.
2454 `gnu' compiled for a GNU Hurd system.
2455 `gnu/linux' compiled for a GNU/Linux system.
2456 `gnu/kfreebsd' compiled for a GNU system with a FreeBSD kernel.
2457 `darwin' compiled for Darwin (GNU-Darwin, Mac OS X, ...).
2458 `ms-dos' compiled as an MS-DOS application.
2459 `windows-nt' compiled as a native W32 application.
2460 `cygwin' compiled using the Cygwin library.
2461 Anything else (in Emacs 24.1, the possibilities are: aix, berkeley-unix,
2462 hpux, irix, usg-unix-v) indicates some sort of Unix system. */);
2463 Vsystem_type
= intern_c_string (SYSTEM_TYPE
);
2464 /* See configure.ac for the possible SYSTEM_TYPEs. */
2466 DEFVAR_LISP ("system-configuration", Vsystem_configuration
,
2467 doc
: /* Value is string indicating configuration Emacs was built for. */);
2468 Vsystem_configuration
= build_string (EMACS_CONFIGURATION
);
2470 DEFVAR_LISP ("system-configuration-options", Vsystem_configuration_options
,
2471 doc
: /* String containing the configuration options Emacs was built with. */);
2472 Vsystem_configuration_options
= build_string (EMACS_CONFIG_OPTIONS
);
2474 DEFVAR_LISP ("system-configuration-features", Vsystem_configuration_features
,
2475 doc
: /* String listing some of the main features this Emacs was compiled with.
2476 An element of the form \"FOO\" generally means that HAVE_FOO was
2477 defined during the build.
2479 This is mainly intended for diagnostic purposes in bug reports.
2480 Don't rely on it for testing whether a feature you want to use is available. */);
2481 Vsystem_configuration_features
= build_string (EMACS_CONFIG_FEATURES
);
2483 DEFVAR_BOOL ("noninteractive", noninteractive1
,
2484 doc
: /* Non-nil means Emacs is running without interactive terminal. */);
2486 DEFVAR_LISP ("kill-emacs-hook", Vkill_emacs_hook
,
2487 doc
: /* Hook run when `kill-emacs' is called.
2488 Since `kill-emacs' may be invoked when the terminal is disconnected (or
2489 in other similar situations), functions placed on this hook should not
2490 expect to be able to interact with the user. To ask for confirmation,
2491 see `kill-emacs-query-functions' instead.
2493 Before Emacs 24.1, the hook was not run in batch mode, i.e., if
2494 `noninteractive' was non-nil. */);
2495 Vkill_emacs_hook
= Qnil
;
2497 DEFVAR_LISP ("path-separator", Vpath_separator
,
2498 doc
: /* String containing the character that separates directories in
2499 search paths, such as PATH and other similar environment variables. */);
2502 Vpath_separator
= make_string (&c
, 1);
2505 DEFVAR_LISP ("invocation-name", Vinvocation_name
,
2506 doc
: /* The program name that was used to run Emacs.
2507 Any directory names are omitted. */);
2509 DEFVAR_LISP ("invocation-directory", Vinvocation_directory
,
2510 doc
: /* The directory in which the Emacs executable was found, to run it.
2511 The value is nil if that directory's name is not known. */);
2513 DEFVAR_LISP ("installation-directory", Vinstallation_directory
,
2514 doc
: /* A directory within which to look for the `lib-src' and `etc' directories.
2515 In an installed Emacs, this is normally nil. It is non-nil if
2516 both `lib-src' (on MS-DOS, `info') and `etc' directories are found
2517 within the variable `invocation-directory' or its parent. For example,
2518 this is the case when running an uninstalled Emacs executable from its
2519 build directory. */);
2520 Vinstallation_directory
= Qnil
;
2522 DEFVAR_LISP ("system-messages-locale", Vsystem_messages_locale
,
2523 doc
: /* System locale for messages. */);
2524 Vsystem_messages_locale
= Qnil
;
2526 DEFVAR_LISP ("previous-system-messages-locale",
2527 Vprevious_system_messages_locale
,
2528 doc
: /* Most recently used system locale for messages. */);
2529 Vprevious_system_messages_locale
= Qnil
;
2531 DEFVAR_LISP ("system-time-locale", Vsystem_time_locale
,
2532 doc
: /* System locale for time. */);
2533 Vsystem_time_locale
= Qnil
;
2535 DEFVAR_LISP ("previous-system-time-locale", Vprevious_system_time_locale
,
2536 doc
: /* Most recently used system locale for time. */);
2537 Vprevious_system_time_locale
= Qnil
;
2539 DEFVAR_LISP ("before-init-time", Vbefore_init_time
,
2540 doc
: /* Value of `current-time' before Emacs begins initialization. */);
2541 Vbefore_init_time
= Qnil
;
2543 DEFVAR_LISP ("after-init-time", Vafter_init_time
,
2544 doc
: /* Value of `current-time' after loading the init files.
2545 This is nil during initialization. */);
2546 Vafter_init_time
= Qnil
;
2548 DEFVAR_BOOL ("inhibit-x-resources", inhibit_x_resources
,
2549 doc
: /* If non-nil, X resources, Windows Registry settings, and NS defaults are not used. */);
2550 inhibit_x_resources
= 0;
2552 DEFVAR_LISP ("emacs-copyright", Vemacs_copyright
,
2553 doc
: /* Short copyright string for this version of Emacs. */);
2554 Vemacs_copyright
= build_string (emacs_copyright
);
2556 DEFVAR_LISP ("emacs-version", Vemacs_version
,
2557 doc
: /* Version numbers of this version of Emacs. */);
2558 Vemacs_version
= build_string (emacs_version
);
2560 DEFVAR_LISP ("report-emacs-bug-address", Vreport_emacs_bug_address
,
2561 doc
: /* Address of mailing list for GNU Emacs bugs. */);
2562 Vreport_emacs_bug_address
= build_string (emacs_bugreport
);
2564 DEFVAR_LISP ("dynamic-library-alist", Vdynamic_library_alist
,
2565 doc
: /* Alist of dynamic libraries vs external files implementing them.
2566 Each element is a list (LIBRARY FILE...), where the car is a symbol
2567 representing a supported external library, and the rest are strings giving
2568 alternate filenames for that library.
2570 Emacs tries to load the library from the files in the order they appear on
2571 the list; if none is loaded, the running session of Emacs won't have access
2574 Note that image types `pbm' and `xbm' do not need entries in this variable
2575 because they do not depend on external libraries and are always available.
2577 Also note that this is not a generic facility for accessing external
2578 libraries; only those already known by Emacs will be loaded. */);
2579 Vdynamic_library_alist
= Qnil
;
2580 Fput (intern_c_string ("dynamic-library-alist"), Qrisky_local_variable
, Qt
);
2583 Vlibrary_cache
= Qnil
;
2584 staticpro (&Vlibrary_cache
);