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"
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 ();
766 #ifdef RUN_TIME_REMAP
768 run_time_remap (argv
[0]);
771 /* If using unexmacosx.c (set by s/darwin.h), we must do this. */
774 unexec_init_emacs_zone ();
777 atexit (close_output_streams
);
779 sort_args (argc
, argv
);
781 while (argv
[argc
]) argc
++;
783 if (argmatch (argv
, argc
, "-version", "--version", 3, NULL
, &skip_args
))
785 const char *version
, *copyright
;
788 Lisp_Object tem
, tem2
;
789 tem
= Fsymbol_value (intern_c_string ("emacs-version"));
790 tem2
= Fsymbol_value (intern_c_string ("emacs-copyright"));
793 fprintf (stderr
, "Invalid value of 'emacs-version'\n");
798 fprintf (stderr
, "Invalid value of 'emacs-copyright'\n");
803 version
= SSDATA (tem
);
804 copyright
= SSDATA (tem2
);
809 version
= emacs_version
;
810 copyright
= emacs_copyright
;
812 printf ("%s %s\n", PACKAGE_NAME
, version
);
813 printf ("%s\n", copyright
);
814 printf ("%s comes with ABSOLUTELY NO WARRANTY.\n", PACKAGE_NAME
);
815 printf ("You may redistribute copies of %s\n", PACKAGE_NAME
);
816 printf ("under the terms of the GNU General Public License.\n");
817 printf ("For more information about these matters, ");
818 printf ("see the file named COPYING.\n");
822 if (argmatch (argv
, argc
, "-chdir", "--chdir", 4, &ch_to_dir
, &skip_args
))
825 /* argv[] array is kept in its original ANSI codepage encoding,
826 we need to convert to UTF-8, for chdir to work. */
827 char newdir
[MAX_UTF8_PATH
];
829 filename_from_ansi (ch_to_dir
, newdir
);
832 original_pwd
= get_current_dir_name ();
833 if (chdir (ch_to_dir
) != 0)
835 fprintf (stderr
, "%s: Can't chdir to %s: %s\n",
836 argv
[0], ch_to_dir
, strerror (errno
));
841 dumping
= !initialized
&& (strcmp (argv
[argc
- 1], "dump") == 0
842 || strcmp (argv
[argc
- 1], "bootstrap") == 0);
844 #ifdef HAVE_PERSONALITY_LINUX32
845 if (dumping
&& ! getenv ("EMACS_HEAP_EXEC"))
847 /* Set this so we only do this once. */
848 xputenv ("EMACS_HEAP_EXEC=true");
850 /* A flag to turn off address randomization which is introduced
851 in linux kernel shipped with fedora core 4 */
852 #define ADD_NO_RANDOMIZE 0x0040000
853 personality (PER_LINUX32
| ADD_NO_RANDOMIZE
);
854 #undef ADD_NO_RANDOMIZE
856 execvp (argv
[0], argv
);
858 /* If the exec fails, try to dump anyway. */
859 emacs_perror (argv
[0]);
861 #endif /* HAVE_PERSONALITY_LINUX32 */
863 #if defined (HAVE_SETRLIMIT) && defined (RLIMIT_STACK) && !defined (CYGWIN)
864 /* Extend the stack space available. Don't do that if dumping,
865 since some systems (e.g. DJGPP) might define a smaller stack
866 limit at that time. And it's not needed on Cygwin, since emacs
867 is built with an 8MB stack. Moreover, the setrlimit call can
868 cause problems on Cygwin
869 (https://www.cygwin.com/ml/cygwin/2015-07/msg00096.html). */
872 && (!noninteractive
|| initialized
)
874 && !getrlimit (RLIMIT_STACK
, &rlim
))
877 /* Approximate the amount regex.c needs per unit of re_max_failures. */
878 int ratio
= 20 * sizeof (char *);
879 /* Then add 33% to cover the size of the smaller stacks that regex.c
880 successively allocates and discards, on its way to the maximum. */
882 /* Add in some extra to cover
883 what we're likely to use for other reasons. */
884 newlim
= re_max_failures
* ratio
+ 200000;
886 /* NetBSD (at least NetBSD 1.2G and former) has a bug in its
887 stack allocation routine for new process that the allocation
888 fails if stack limit is not on page boundary. So, round up the
889 new limit to page boundary. */
890 newlim
= (newlim
+ getpagesize () - 1) / getpagesize () * getpagesize ();
892 if (newlim
> rlim
.rlim_max
)
894 newlim
= rlim
.rlim_max
;
895 /* Don't let regex.c overflow the stack we have. */
896 re_max_failures
= (newlim
- 200000) / ratio
;
898 if (rlim
.rlim_cur
< newlim
)
899 rlim
.rlim_cur
= newlim
;
901 setrlimit (RLIMIT_STACK
, &rlim
);
903 #endif /* HAVE_SETRLIMIT and RLIMIT_STACK and not CYGWIN */
905 /* Record (approximately) where the stack begins. */
906 stack_bottom
= &stack_bottom_variable
;
910 emacs_backtrace (-1);
912 #if !defined SYSTEM_MALLOC && !defined HYBRID_MALLOC
913 /* Arrange to get warning messages as memory fills up. */
914 memory_warnings (0, malloc_warning
);
916 /* Call malloc at least once, to run malloc_initialize_hook.
917 Also call realloc and free for consistency. */
918 free (realloc (malloc (4), 4));
920 #endif /* not SYSTEM_MALLOC and not HYBRID_MALLOC */
923 SET_BINARY (fileno (stdin
));
925 SET_BINARY (fileno (stdout
));
928 /* Skip initial setlocale if LC_ALL is "C", as it's not needed in that case.
929 The build procedure uses this while dumping, to ensure that the
930 dumped Emacs does not have its system locale tables initialized,
931 as that might cause screwups when the dumped Emacs starts up. */
933 char *lc_all
= getenv ("LC_ALL");
934 do_initial_setlocale
= ! lc_all
|| strcmp (lc_all
, "C");
937 /* Set locale now, so that initial error messages are localized properly.
938 fixup_locale must wait until later, since it builds strings. */
939 if (do_initial_setlocale
)
940 setlocale (LC_ALL
, "");
941 text_quoting_flag
= using_utf8 ();
943 inhibit_window_system
= 0;
945 /* Handle the -t switch, which specifies filename to use as terminal. */
949 if (argmatch (argv
, argc
, "-t", "--terminal", 4, &term
, &skip_args
))
954 result
= emacs_open (term
, O_RDWR
, 0);
955 if (result
< 0 || fcntl (0, F_DUPFD_CLOEXEC
, 1) < 0)
957 char *errstring
= strerror (errno
);
958 fprintf (stderr
, "%s: %s: %s\n", argv
[0], term
, errstring
);
963 fprintf (stderr
, "%s: %s: not a tty\n", argv
[0], term
);
966 fprintf (stderr
, "Using %s\n", term
);
967 #ifdef HAVE_WINDOW_SYSTEM
968 inhibit_window_system
= 1; /* -t => -nw */
975 /* Command line option --no-windows is deprecated and thus not mentioned
976 in the manual and usage information. */
977 if (argmatch (argv
, argc
, "-nw", "--no-window-system", 6, NULL
, &skip_args
)
978 || argmatch (argv
, argc
, "-nw", "--no-windows", 6, NULL
, &skip_args
))
979 inhibit_window_system
= 1;
981 /* Handle the -batch switch, which means don't do interactive display. */
983 if (argmatch (argv
, argc
, "-batch", "--batch", 5, NULL
, &skip_args
))
986 Vundo_outer_limit
= Qnil
;
988 if (argmatch (argv
, argc
, "-script", "--script", 3, &junk
, &skip_args
))
990 noninteractive
= 1; /* Set batch mode. */
991 /* Convert --script to -scriptload, un-skip it, and sort again
992 so that it will be handled in proper sequence. */
993 /* FIXME broken for --script=FILE - is that supposed to work? */
994 argv
[skip_args
- 1] = (char *) "-scriptload";
996 sort_args (argc
, argv
);
999 /* Handle the --help option, which gives a usage message. */
1000 if (argmatch (argv
, argc
, "-help", "--help", 3, NULL
, &skip_args
))
1003 printf ("Usage: %s [OPTION-OR-FILENAME]...\n", argv
[0]);
1004 for (i
= 0; i
< ARRAYELTS (usage_message
); i
++)
1005 fputs (usage_message
[i
], stdout
);
1010 /* Make sure IS_DAEMON starts up as false. */
1013 w32_daemon_event
= NULL
;
1016 if (argmatch (argv
, argc
, "-daemon", "--daemon", 5, NULL
, &skip_args
)
1017 || argmatch (argv
, argc
, "-daemon", "--daemon", 5, &dname_arg
, &skip_args
))
1022 /* Start as a daemon: fork a new child process which will run the
1023 rest of the initialization code, then exit.
1025 Detaching a daemon requires the following steps:
1029 - close the tty file-descriptors
1031 We only want to do the last 2 steps once the daemon is ready to
1032 serve requests, i.e. after loading .emacs (initialization).
1033 OTOH initialization may start subprocesses (e.g. ispell) and these
1034 should be run from the proper process (the one that will end up
1035 running as daemon) and with the proper "session id" in order for
1036 them to keep working after detaching, so fork and setsid need to be
1037 performed before initialization.
1039 We want to avoid exiting before the server socket is ready, so
1040 use a pipe for synchronization. The parent waits for the child
1041 to close its end of the pipe (using `daemon-initialized')
1043 if (emacs_pipe (daemon_pipe
) != 0)
1045 fprintf (stderr
, "Cannot pipe!\n");
1049 #ifndef DAEMON_MUST_EXEC
1051 fprintf (stderr
, "\nWarning: due to a long standing Gtk+ bug\nhttp://bugzilla.gnome.org/show_bug.cgi?id=85715\n\
1052 Emacs might crash when run in daemon mode and the X11 connection is unexpectedly lost.\n\
1053 Using an Emacs configured with --with-x-toolkit=lucid does not have this problem.\n");
1054 #endif /* USE_GTK */
1056 #else /* DAEMON_MUST_EXEC */
1057 if (!dname_arg
|| !strchr (dname_arg
, '\n'))
1058 f
= fork (); /* in orig */
1060 f
= 0; /* in exec'd */
1061 #endif /* !DAEMON_MUST_EXEC */
1067 /* Close unused writing end of the pipe. */
1068 emacs_close (daemon_pipe
[1]);
1070 /* Just wait for the child to close its end of the pipe. */
1073 retval
= read (daemon_pipe
[0], &buf
, 1);
1075 while (retval
== -1 && errno
== EINTR
);
1079 fprintf (stderr
, "Error reading status from child\n");
1082 else if (retval
== 0)
1084 fprintf (stderr
, "Error: server did not start correctly\n");
1088 emacs_close (daemon_pipe
[0]);
1093 emacs_perror ("fork");
1094 exit (EXIT_CANCELED
);
1097 #ifdef DAEMON_MUST_EXEC
1099 /* In orig process, forked as child, OR in exec'd. */
1100 if (!dname_arg
|| !strchr (dname_arg
, '\n'))
1101 { /* In orig, child: now exec w/special daemon name. */
1104 snprintf (fdStr
, sizeof fdStr
,
1105 "--daemon=\n%d,%d\n%s", daemon_pipe
[0],
1106 daemon_pipe
[1], dname_arg
? dname_arg
: "");
1108 if (! (0 <= fdStrlen
&& fdStrlen
< sizeof fdStr
))
1110 fprintf (stderr
, "daemon: child name too long\n");
1111 exit (EXIT_CANNOT_INVOKE
);
1114 argv
[skip_args
] = fdStr
;
1116 fcntl (daemon_pipe
[0], F_SETFD
, 0);
1117 fcntl (daemon_pipe
[1], F_SETFD
, 0);
1118 execvp (argv
[0], argv
);
1119 emacs_perror (argv
[0]);
1120 exit (errno
== ENOENT
? EXIT_ENOENT
: EXIT_CANNOT_INVOKE
);
1123 /* In exec'd: parse special dname into pipe and name info. */
1124 if (!dname_arg
|| !strchr (dname_arg
, '\n')
1125 || strlen (dname_arg
) < 1 || strlen (dname_arg
) > 70)
1127 fprintf (stderr
, "emacs daemon: daemon name absent or too long\n");
1128 exit (EXIT_CANNOT_INVOKE
);
1130 dname_arg2
[0] = '\0';
1131 sscanf (dname_arg
, "\n%d,%d\n%s", &(daemon_pipe
[0]), &(daemon_pipe
[1]),
1133 dname_arg
= *dname_arg2
? dname_arg2
: NULL
;
1134 fcntl (daemon_pipe
[1], F_SETFD
, FD_CLOEXEC
);
1136 #endif /* DAEMON_MUST_EXEC */
1138 /* Close unused reading end of the pipe. */
1139 emacs_close (daemon_pipe
[0]);
1142 #elif defined(WINDOWSNT)
1143 /* Indicate that we want daemon mode. */
1144 w32_daemon_event
= CreateEvent (NULL
, TRUE
, FALSE
, W32_DAEMON_EVENT
);
1145 if (w32_daemon_event
== NULL
)
1147 fprintf (stderr
, "Couldn't create MS-Windows event for daemon: %s\n",
1152 fprintf (stderr
, "This platform does not support the -daemon flag.\n");
1156 daemon_name
= xstrdup (dname_arg
);
1159 #if defined HAVE_PTHREAD && !defined SYSTEM_MALLOC \
1160 && !defined DOUG_LEA_MALLOC && !defined HYBRID_MALLOC
1161 # ifndef CANNOT_DUMP
1162 /* Do not make gmalloc thread-safe when creating bootstrap-emacs, as
1163 that causes an infinite recursive loop with FreeBSD. See
1164 Bug#14569. The part of this bug involving Cygwin is no longer
1165 relevant, now that Cygwin defines HYBRID_MALLOC. */
1166 if (!noninteractive
|| initialized
)
1168 malloc_enable_thread ();
1171 init_signals (dumping
);
1173 noninteractive1
= noninteractive
;
1175 /* Perform basic initializations (not merely interning symbols). */
1182 init_charset_once ();
1183 init_coding_once ();
1184 init_syntax_once (); /* Create standard syntax table. */
1185 init_category_once (); /* Create standard category table. */
1186 init_casetab_once (); /* Must be done before init_buffer_once. */
1187 init_buffer_once (); /* Create buffer table and some buffers. */
1188 init_minibuf_once (); /* Create list of minibuffers. */
1189 /* Must precede init_window_once. */
1191 /* Call syms_of_xfaces before init_window_once because that
1192 function creates Vterminal_frame. Termcap frames now use
1193 faces, and the face implementation uses some symbols as
1196 /* XXX syms_of_keyboard uses some symbols in keymap.c. It would
1197 be better to arrange things not to have this dependency. */
1199 /* Call syms_of_keyboard before init_window_once because
1200 keyboard sets up symbols that include some face names that
1201 the X support will want to use. This can happen when
1202 CANNOT_DUMP is defined. */
1203 syms_of_keyboard ();
1205 /* Called before syms_of_fileio, because it sets up Qerror_condition. */
1207 syms_of_fns (); /* Before syms_of_charset which uses hashtables. */
1209 /* Before syms_of_coding to initialize Vgc_cons_threshold. */
1211 /* May call Ffuncall and so GC, thus the latter should be initialized. */
1213 /* Before syms_of_coding because it initializes Qcharsetp. */
1215 /* Before init_window_once, because it sets up the
1216 Vcoding_system_hash_table. */
1217 syms_of_coding (); /* This should be after syms_of_fileio. */
1219 init_window_once (); /* Init the window system. */
1220 #ifdef HAVE_WINDOW_SYSTEM
1221 init_fringe_once (); /* Swap bitmaps if necessary. */
1222 #endif /* HAVE_WINDOW_SYSTEM */
1227 if (do_initial_setlocale
)
1230 Vsystem_messages_locale
= Vprevious_system_messages_locale
;
1231 Vsystem_time_locale
= Vprevious_system_time_locale
;
1236 running_asynch_code
= 0;
1240 = argmatch (argv
, argc
, "-nl", "--no-loadup", 6, NULL
, &skip_args
);
1243 = argmatch (argv
, argc
, "-nsl", "--no-site-lisp", 11, NULL
, &skip_args
);
1246 ns_pool
= ns_alloc_autorelease_pool ();
1247 #ifdef NS_IMPL_GNUSTEP
1248 /* GNUstep stupidly resets our locale settings after we made them. */
1252 if (!noninteractive
)
1254 #ifdef NS_IMPL_COCOA
1255 /* Started from GUI? */
1256 /* FIXME: Do the right thing if getenv returns NULL, or if
1258 if (! inhibit_window_system
&& ! isatty (0) && ! ch_to_dir
)
1259 chdir (getenv ("HOME"));
1260 if (skip_args
< argc
)
1262 if (!strncmp (argv
[skip_args
], "-psn", 4))
1265 if (! ch_to_dir
) chdir (getenv ("HOME"));
1267 else if (skip_args
+1 < argc
&& !strncmp (argv
[skip_args
+1], "-psn", 4))
1270 if (! ch_to_dir
) chdir (getenv ("HOME"));
1275 #endif /* HAVE_NS */
1277 #ifdef HAVE_X_WINDOWS
1278 /* Stupid kludge to catch command-line display spec. We can't
1279 handle this argument entirely in window system dependent code
1280 because we don't even know which window system dependent code
1281 to run until we've recognized this argument. */
1283 char *displayname
= 0;
1284 int count_before
= skip_args
;
1286 /* Skip any number of -d options, but only use the last one. */
1289 int count_before_this
= skip_args
;
1291 if (argmatch (argv
, argc
, "-d", "--display", 3, &displayname
, &skip_args
))
1293 else if (argmatch (argv
, argc
, "-display", 0, 3, &displayname
, &skip_args
))
1298 count_before
= count_before_this
;
1301 /* If we have the form --display=NAME,
1302 convert it into -d name.
1303 This requires inserting a new element into argv. */
1304 if (displayname
&& count_before
< skip_args
)
1306 if (skip_args
== count_before
+ 1)
1308 memmove (argv
+ count_before
+ 3, argv
+ count_before
+ 2,
1309 (argc
- (count_before
+ 2)) * sizeof *argv
);
1310 argv
[count_before
+ 2] = displayname
;
1313 argv
[count_before
+ 1] = (char *) "-d";
1318 if (argmatch (argv
, argc
, "-Q", "--quick", 3, NULL
, &skip_args
)
1319 || argmatch (argv
, argc
, "-quick", 0, 2, NULL
, &skip_args
))
1323 /* Don't actually discard this arg. */
1324 skip_args
= count_before
;
1326 #else /* !HAVE_X_WINDOWS */
1329 int count_before
= skip_args
;
1331 if (argmatch (argv
, argc
, "-Q", "--quick", 3, NULL
, &skip_args
)
1332 || argmatch (argv
, argc
, "-quick", 0, 2, NULL
, &skip_args
))
1335 skip_args
= count_before
;
1339 /* argmatch must not be used after here,
1340 except when building temacs
1341 because the -d argument has not been skipped in skip_args. */
1344 /* Call early 'cause init_environment needs it. */
1346 /* Set defaults for several environment variables. */
1348 init_environment (argc
, argv
, skip_args
);
1353 #ifdef HAVE_GFILENOTIFY
1354 globals_of_gfilenotify ();
1359 #ifdef HAVE_W32NOTIFY
1360 globals_of_w32notify ();
1362 /* Initialize environment from registry settings. */
1363 init_environment (argv
);
1364 init_ntproc (dumping
); /* must precede init_editfns. */
1367 /* Initialize and GC-protect Vinitial_environment and
1368 Vprocess_environment before set_initial_environment fills them
1371 syms_of_callproc ();
1372 /* egetenv is a pretty low-level facility, which may get called in
1373 many circumstances; it seems flimsy to put off initializing it
1374 until calling init_callproc. Do not do it when dumping. */
1376 set_initial_environment ();
1378 /* AIX crashes are reported in system versions 3.2.3 and 3.2.4
1379 if this is not done. Do it after set_global_environment so that we
1380 don't pollute Vglobal_environment. */
1381 /* Setting LANG here will defeat the startup locale processing... */
1386 /* Init buffer storage and default directory of main buffer. */
1387 init_buffer (initialized
);
1389 init_callproc_1 (); /* Must precede init_cmdargs and init_sys_modes. */
1391 /* Must precede init_lread. */
1392 init_cmdargs (argc
, argv
, skip_args
, original_pwd
);
1396 /* Erase any pre-dump messages in the message log, to avoid confusion. */
1397 Lisp_Object old_log_max
;
1398 old_log_max
= Vmessage_log_max
;
1399 XSETFASTINT (Vmessage_log_max
, 0);
1400 message_dolog ("", 0, 1, 0);
1401 Vmessage_log_max
= old_log_max
;
1404 init_callproc (); /* Must follow init_cmdargs but not init_sys_modes. */
1408 /* Check to see if Emacs has been installed correctly. */
1409 check_windows_init_file ();
1412 /* Intern the names of all standard functions and variables;
1413 define standard keys. */
1417 /* The basic levels of Lisp must come first. Note that
1418 syms_of_data and some others have already been called. */
1423 syms_of_floatfns ();
1426 syms_of_bytecode ();
1428 syms_of_casefiddle ();
1430 syms_of_category ();
1432 syms_of_character ();
1439 syms_of_filelock ();
1442 /* syms_of_keymap (); */
1450 syms_of_terminal ();
1456 syms_of_textprop ();
1457 syms_of_composite ();
1460 #endif /* WINDOWSNT */
1467 #ifdef HAVE_WINDOW_SYSTEM
1470 #endif /* HAVE_WINDOW_SYSTEM */
1471 #ifdef HAVE_X_WINDOWS
1476 syms_of_xsettings ();
1483 #endif /* HAVE_X_WINDOWS */
1490 syms_of_decompress ();
1500 #endif /* HAVE_NTGUI */
1502 #if defined WINDOWSNT || defined HAVE_NTGUI
1503 syms_of_w32select ();
1510 syms_of_win16select ();
1517 syms_of_nsselect ();
1519 #endif /* HAVE_NS */
1523 #ifdef HAVE_GFILENOTIFY
1524 syms_of_gfilenotify ();
1525 #endif /* HAVE_GFILENOTIFY */
1529 #endif /* HAVE_INOTIFY */
1532 syms_of_dbusbind ();
1533 #endif /* HAVE_DBUS */
1537 #ifdef HAVE_W32NOTIFY
1538 syms_of_w32notify ();
1539 #endif /* HAVE_W32NOTIFY */
1540 #endif /* WINDOWSNT */
1542 syms_of_profiler ();
1544 keys_of_casefiddle ();
1547 keys_of_keyboard ();
1553 /* Initialization that must be done even if the global variable
1554 initialized is non zero. */
1556 globals_of_w32font ();
1557 globals_of_w32fns ();
1558 globals_of_w32menu ();
1559 #endif /* HAVE_NTGUI */
1561 #if defined WINDOWSNT || defined HAVE_NTGUI
1562 globals_of_w32select ();
1568 /* This calls putenv and so must precede init_process_emacs. Also,
1569 it sets Voperating_system_release, which init_process_emacs uses. */
1570 init_editfns (dumping
);
1572 /* These two call putenv. */
1580 /* This can create a thread that may call getenv, so it must follow
1581 all calls to putenv and setenv. Also, this sets up
1582 add_keyboard_wait_descriptor, which init_display uses. */
1583 init_process_emacs ();
1585 init_keyboard (); /* This too must precede init_sys_modes. */
1586 if (!noninteractive
)
1587 init_display (); /* Determine terminal type. Calls init_sys_modes. */
1590 init_crit (); /* w32notify.c needs this in batch mode. */
1591 #endif /* HAVE_W32NOTIFY */
1593 #ifdef HAVE_WINDOW_SYSTEM
1595 #endif /* HAVE_WINDOW_SYSTEM */
1603 /* Handle -l loadup, args passed by Makefile. */
1604 if (argmatch (argv
, argc
, "-l", "--load", 3, &file
, &skip_args
))
1607 char file_utf8
[MAX_UTF8_PATH
];
1609 if (filename_from_ansi (file
, file_utf8
) == 0)
1612 Vtop_level
= list2 (Qload
, build_unibyte_string (file
));
1614 /* Unless next switch is -nl, load "loadup.el" first thing. */
1616 Vtop_level
= list2 (Qload
, build_string ("loadup.el"));
1619 /* Set up for profiling. This is known to work on FreeBSD,
1620 GNU/Linux and MinGW. It might work on some other systems too.
1621 Give it a try and tell us if it works on your system. To compile
1622 for profiling, use the configure option --enable-profiling. */
1623 #if defined (__FreeBSD__) || defined (GNU_LINUX) || defined (__MINGW32__)
1628 extern unsigned char etext
asm ("etext");
1634 monstartup ((uintptr_t) __executable_start
, (uintptr_t) &etext
);
1643 /* Enter editor command loop. This never returns. */
1649 /* Sort the args so we can find the most important ones
1650 at the beginning of argv. */
1652 /* First, here's a table of all the standard options. */
1654 struct standard_args
1657 const char *longname
;
1662 static const struct standard_args standard_args
[] =
1664 { "-version", "--version", 150, 0 },
1665 { "-chdir", "--chdir", 130, 1 },
1666 { "-t", "--terminal", 120, 1 },
1667 { "-nw", "--no-window-system", 110, 0 },
1668 { "-nw", "--no-windows", 110, 0 },
1669 { "-batch", "--batch", 100, 0 },
1670 { "-script", "--script", 100, 1 },
1671 { "-daemon", "--daemon", 99, 0 },
1672 { "-help", "--help", 90, 0 },
1673 { "-nl", "--no-loadup", 70, 0 },
1674 { "-nsl", "--no-site-lisp", 65, 0 },
1675 /* -d must come last before the options handled in startup.el. */
1676 { "-d", "--display", 60, 1 },
1677 { "-display", 0, 60, 1 },
1678 /* Now for the options handled in `command-line' (startup.el). */
1679 /* (Note that to imply -nsl, -Q is partially handled here.) */
1680 { "-Q", "--quick", 55, 0 },
1681 { "-quick", 0, 55, 0 },
1682 { "-q", "--no-init-file", 50, 0 },
1683 { "-no-init-file", 0, 50, 0 },
1684 { "-no-x-resources", "--no-x-resources", 40, 0 },
1685 { "-no-site-file", "--no-site-file", 40, 0 },
1686 { "-u", "--user", 30, 1 },
1687 { "-user", 0, 30, 1 },
1688 { "-debug-init", "--debug-init", 20, 0 },
1689 { "-iconic", "--iconic", 15, 0 },
1690 { "-D", "--basic-display", 12, 0},
1691 { "-basic-display", 0, 12, 0},
1692 { "-nbc", "--no-blinking-cursor", 12, 0 },
1693 /* Now for the options handled in `command-line-1' (startup.el). */
1694 { "-nbi", "--no-bitmap-icon", 10, 0 },
1695 { "-bg", "--background-color", 10, 1 },
1696 { "-background", 0, 10, 1 },
1697 { "-fg", "--foreground-color", 10, 1 },
1698 { "-foreground", 0, 10, 1 },
1699 { "-bd", "--border-color", 10, 1 },
1700 { "-bw", "--border-width", 10, 1 },
1701 { "-ib", "--internal-border", 10, 1 },
1702 { "-ms", "--mouse-color", 10, 1 },
1703 { "-cr", "--cursor-color", 10, 1 },
1704 { "-fn", "--font", 10, 1 },
1705 { "-font", 0, 10, 1 },
1706 { "-fs", "--fullscreen", 10, 0 },
1707 { "-fw", "--fullwidth", 10, 0 },
1708 { "-fh", "--fullheight", 10, 0 },
1709 { "-mm", "--maximized", 10, 0 },
1710 { "-g", "--geometry", 10, 1 },
1711 { "-geometry", 0, 10, 1 },
1712 { "-T", "--title", 10, 1 },
1713 { "-title", 0, 10, 1 },
1714 { "-name", "--name", 10, 1 },
1715 { "-xrm", "--xrm", 10, 1 },
1716 { "-parent-id", "--parent-id", 10, 1 },
1717 { "-r", "--reverse-video", 5, 0 },
1719 { "-reverse", 0, 5, 0 },
1720 { "-hb", "--horizontal-scroll-bars", 5, 0 },
1721 { "-vb", "--vertical-scroll-bars", 5, 0 },
1722 { "-color", "--color", 5, 0},
1723 { "-no-splash", "--no-splash", 3, 0 },
1724 { "-no-desktop", "--no-desktop", 3, 0 },
1726 { "-NSAutoLaunch", 0, 5, 1 },
1727 { "-NXAutoLaunch", 0, 5, 1 },
1728 { "-_NSMachLaunch", 0, 85, 1 },
1729 { "-MachLaunch", 0, 85, 1 },
1730 { "-macosx", 0, 85, 0 },
1731 { "-NSHost", 0, 85, 1 },
1733 /* These have the same priority as ordinary file name args,
1734 so they are not reordered with respect to those. */
1735 { "-L", "--directory", 0, 1 },
1736 { "-directory", 0, 0, 1 },
1737 { "-l", "--load", 0, 1 },
1738 { "-load", 0, 0, 1 },
1739 /* This has no longname, because using --scriptload confuses sort_args,
1740 because then the --script long option seems to match twice; ie
1741 you can't have a long option which is a prefix of another long
1742 option. In any case, this is entirely an internal option. */
1743 { "-scriptload", NULL
, 0, 1 },
1744 { "-f", "--funcall", 0, 1 },
1745 { "-funcall", 0, 0, 1 },
1746 { "-eval", "--eval", 0, 1 },
1747 { "-execute", "--execute", 0, 1 },
1748 { "-find-file", "--find-file", 0, 1 },
1749 { "-visit", "--visit", 0, 1 },
1750 { "-file", "--file", 0, 1 },
1751 { "-insert", "--insert", 0, 1 },
1753 { "-NXOpen", 0, 0, 1 },
1754 { "-NXOpenTemp", 0, 0, 1 },
1755 { "-NSOpen", 0, 0, 1 },
1756 { "-NSOpenTemp", 0, 0, 1 },
1757 { "-GSFilePath", 0, 0, 1 },
1759 /* This should be processed after ordinary file name args and the like. */
1760 { "-kill", "--kill", -10, 0 },
1763 /* Reorder the elements of ARGV (assumed to have ARGC elements)
1764 so that the highest priority ones come first.
1765 Do not change the order of elements of equal priority.
1766 If an option takes an argument, keep it and its argument together.
1768 If an option that takes no argument appears more
1769 than once, eliminate all but one copy of it. */
1772 sort_args (int argc
, char **argv
)
1774 char **new = xmalloc (argc
* sizeof *new);
1775 /* For each element of argv,
1776 the corresponding element of options is:
1777 0 for an option that takes no arguments,
1778 1 for an option that takes one argument, etc.
1779 -1 for an ordinary non-option argument. */
1780 int *options
= xnmalloc (argc
, sizeof *options
);
1781 int *priority
= xnmalloc (argc
, sizeof *priority
);
1783 int incoming_used
= 1;
1787 /* Categorize all the options,
1788 and figure out which argv elts are option arguments. */
1789 for (from
= 1; from
< argc
; from
++)
1793 if (argv
[from
][0] == '-')
1797 /* If we have found "--", don't consider
1798 any more arguments as options. */
1799 if (argv
[from
][1] == '-' && argv
[from
][2] == 0)
1801 /* Leave the "--", and everything following it, at the end. */
1802 for (; from
< argc
; from
++)
1804 priority
[from
] = -100;
1810 /* Look for a match with a known old-fashioned option. */
1811 for (i
= 0; i
< ARRAYELTS (standard_args
); i
++)
1812 if (!strcmp (argv
[from
], standard_args
[i
].name
))
1814 options
[from
] = standard_args
[i
].nargs
;
1815 priority
[from
] = standard_args
[i
].priority
;
1816 if (from
+ standard_args
[i
].nargs
>= argc
)
1817 fatal ("Option '%s' requires an argument\n", argv
[from
]);
1818 from
+= standard_args
[i
].nargs
;
1822 /* Look for a match with a known long option.
1823 MATCH is -1 if no match so far, -2 if two or more matches so far,
1824 >= 0 (the table index of the match) if just one match so far. */
1825 if (argv
[from
][1] == '-')
1827 char const *equals
= strchr (argv
[from
], '=');
1829 equals
? equals
- argv
[from
] : strlen (argv
[from
]);
1833 for (i
= 0; i
< ARRAYELTS (standard_args
); i
++)
1834 if (standard_args
[i
].longname
1835 && !strncmp (argv
[from
], standard_args
[i
].longname
,
1844 /* If we found exactly one match, use that. */
1847 options
[from
] = standard_args
[match
].nargs
;
1848 priority
[from
] = standard_args
[match
].priority
;
1849 /* If --OPTION=VALUE syntax is used,
1850 this option uses just one argv element. */
1853 if (from
+ options
[from
] >= argc
)
1854 fatal ("Option '%s' requires an argument\n", argv
[from
]);
1855 from
+= options
[from
];
1857 /* FIXME When match < 0, shouldn't there be some error,
1858 or at least indication to the user that there was a
1865 /* Copy the arguments, in order of decreasing priority, to NEW. */
1867 while (incoming_used
< argc
)
1870 int best_priority
= -9999;
1872 /* Find the highest priority remaining option.
1873 If several have equal priority, take the first of them. */
1874 for (from
= 1; from
< argc
; from
++)
1876 if (argv
[from
] != 0 && priority
[from
] > best_priority
)
1878 best_priority
= priority
[from
];
1881 /* Skip option arguments--they are tied to the options. */
1882 if (options
[from
] > 0)
1883 from
+= options
[from
];
1889 /* Copy the highest priority remaining option, with its args, to NEW.
1890 Unless it is a duplicate of the previous one. */
1891 if (! (options
[best
] == 0
1892 && ! strcmp (new[to
- 1], argv
[best
])))
1894 new[to
++] = argv
[best
];
1895 for (i
= 0; i
< options
[best
]; i
++)
1896 new[to
++] = argv
[best
+ i
+ 1];
1899 incoming_used
+= 1 + (options
[best
] > 0 ? options
[best
] : 0);
1901 /* Clear out this option in ARGV. */
1903 for (i
= 0; i
< options
[best
]; i
++)
1904 argv
[best
+ i
+ 1] = 0;
1907 /* If duplicate options were deleted, fill up extra space with null ptrs. */
1911 memcpy (argv
, new, sizeof (char *) * argc
);
1918 DEFUN ("kill-emacs", Fkill_emacs
, Skill_emacs
, 0, 1, "P",
1919 doc
: /* Exit the Emacs job and kill it.
1920 If ARG is an integer, return ARG as the exit program code.
1921 If ARG is a string, stuff it as keyboard input.
1923 This function is called upon receipt of the signals SIGTERM
1924 or SIGHUP, and upon SIGINT in batch mode.
1926 The value of `kill-emacs-hook', if not void,
1927 is a list of functions (of no args),
1928 all of which are called before Emacs is actually killed. */
1929 attributes
: noreturn
)
1934 /* Fsignal calls emacs_abort () if it sees that waiting_for_input is
1936 waiting_for_input
= 0;
1937 run_hook (Qkill_emacs_hook
);
1939 #ifdef HAVE_X_WINDOWS
1940 /* Transfer any clipboards we own to the clipboard manager. */
1941 x_clipboard_manager_save_all ();
1944 shut_down_emacs (0, (STRINGP (arg
) && !feof (stdin
)) ? arg
: Qnil
);
1947 ns_release_autorelease_pool (ns_pool
);
1950 /* If we have an auto-save list file,
1951 kill it because we are exiting Emacs deliberately (not crashing).
1952 Do it after shut_down_emacs, which does an auto-save. */
1953 if (STRINGP (Vauto_save_list_file_name
))
1955 Lisp_Object listfile
;
1956 listfile
= Fexpand_file_name (Vauto_save_list_file_name
, Qnil
);
1957 unlink (SSDATA (listfile
));
1961 exit_code
= (XINT (arg
) < 0
1962 ? XINT (arg
) | INT_MIN
1963 : XINT (arg
) & INT_MAX
);
1965 exit_code
= EXIT_SUCCESS
;
1970 /* Perform an orderly shutdown of Emacs. Autosave any modified
1971 buffers, kill any child processes, clean up the terminal modes (if
1972 we're in the foreground), and other stuff like that. Don't perform
1973 any redisplay; this may be called when Emacs is shutting down in
1974 the background, or after its X connection has died.
1976 If SIG is a signal number, print a message for it.
1978 This is called by fatal signal handlers, X protocol error handlers,
1982 shut_down_emacs (int sig
, Lisp_Object stuff
)
1984 /* Prevent running of hooks from now on. */
1987 /* Don't update display from now on. */
1988 Vinhibit_redisplay
= Qt
;
1990 /* If we are controlling the terminal, reset terminal modes. */
1993 pid_t pgrp
= getpgrp ();
1994 pid_t tpgrp
= tcgetpgrp (0);
1995 if ((tpgrp
!= -1) && tpgrp
== pgrp
)
1997 reset_all_sys_modes ();
1998 if (sig
&& sig
!= SIGTERM
)
2000 static char const format
[] = "Fatal error %d: ";
2001 char buf
[sizeof format
- 2 + INT_STRLEN_BOUND (int)];
2002 int buflen
= sprintf (buf
, format
, sig
);
2003 char const *sig_desc
= safe_strsignal (sig
);
2004 emacs_write (STDERR_FILENO
, buf
, buflen
);
2005 emacs_write (STDERR_FILENO
, sig_desc
, strlen (sig_desc
));
2011 reset_all_sys_modes ();
2014 stuff_buffered_input (stuff
);
2016 inhibit_sentinels
= 1;
2017 kill_buffer_processes (Qnil
);
2018 Fdo_auto_save (Qt
, Qnil
);
2020 unlock_all_files ();
2022 /* There is a tendency for a SIGIO signal to arrive within exit,
2023 and cause a SIGHUP because the input descriptor is already closed. */
2026 /* Do this only if terminating normally, we want glyph matrices
2027 etc. in a core dump. */
2028 if (sig
== 0 || sig
== SIGTERM
)
2030 check_glyph_memory ();
2031 check_message_stack ();
2039 ns_term_shutdown (sig
);
2043 xml_cleanup_parser ();
2057 DEFUN ("dump-emacs", Fdump_emacs
, Sdump_emacs
, 2, 2, 0,
2058 doc
: /* Dump current state of Emacs into executable file FILENAME.
2059 Take symbols from SYMFILE (presumably the file you executed to run Emacs).
2060 This is used in the file `loadup.el' when building Emacs.
2062 You must run Emacs in batch mode in order to dump it. */)
2063 (Lisp_Object filename
, Lisp_Object symfile
)
2067 ptrdiff_t count
= SPECPDL_INDEX ();
2071 if (! noninteractive
)
2072 error ("Dumping Emacs works only in batch mode");
2075 error ("Emacs can be dumped only once");
2079 /* Warn if the gap between BSS end and heap start is larger than this. */
2080 # define MAX_HEAP_BSS_DIFF (1024*1024)
2082 if (heap_bss_diff
> MAX_HEAP_BSS_DIFF
)
2084 fprintf (stderr
, "**************************************************\n");
2085 fprintf (stderr
, "Warning: Your system has a gap between BSS and the\n");
2086 fprintf (stderr
, "heap (%"pMu
" bytes). This usually means that exec-shield\n",
2088 fprintf (stderr
, "or something similar is in effect. The dump may\n");
2089 fprintf (stderr
, "fail because of this. See the section about\n");
2090 fprintf (stderr
, "exec-shield in etc/PROBLEMS for more information.\n");
2091 fprintf (stderr
, "**************************************************\n");
2093 #endif /* GNU_LINUX */
2095 /* Bind `command-line-processed' to nil before dumping,
2096 so that the dumped Emacs will process its command line
2097 and set up to work with X windows if appropriate. */
2098 symbol
= intern ("command-line-processed");
2099 specbind (symbol
, Qnil
);
2101 CHECK_STRING (filename
);
2102 filename
= Fexpand_file_name (filename
, Qnil
);
2103 filename
= ENCODE_FILE (filename
);
2104 if (!NILP (symfile
))
2106 CHECK_STRING (symfile
);
2107 if (SCHARS (symfile
))
2109 symfile
= Fexpand_file_name (symfile
, Qnil
);
2110 symfile
= ENCODE_FILE (symfile
);
2115 Vpurify_flag
= Qnil
;
2118 /* Tell malloc where start of impure now is. */
2119 /* Also arrange for warnings when nearly out of space. */
2120 #if !defined SYSTEM_MALLOC && !defined HYBRID_MALLOC
2122 /* On Windows, this was done before dumping, and that once suffices.
2123 Meanwhile, my_edata is not valid on Windows. */
2124 memory_warnings (my_edata
, malloc_warning
);
2125 #endif /* not WINDOWSNT */
2126 #endif /* not SYSTEM_MALLOC and not HYBRID_MALLOC */
2127 #ifdef DOUG_LEA_MALLOC
2128 malloc_state_ptr
= malloc_get_state ();
2131 unexec (SSDATA (filename
), !NILP (symfile
) ? SSDATA (symfile
) : 0);
2133 #ifdef DOUG_LEA_MALLOC
2134 free (malloc_state_ptr
);
2138 Vlibrary_cache
= Qnil
;
2140 #ifdef HAVE_WINDOW_SYSTEM
2141 reset_image_types ();
2146 return unbind_to (count
, Qnil
);
2149 #endif /* not CANNOT_DUMP */
2152 /* Recover from setlocale (LC_ALL, ""). */
2156 /* The Emacs Lisp reader needs LC_NUMERIC to be "C",
2157 so that numbers are read and printed properly for Emacs Lisp. */
2158 setlocale (LC_NUMERIC
, "C");
2161 /* Set system locale CATEGORY, with previous locale *PLOCALE, to
2164 synchronize_locale (int category
, Lisp_Object
*plocale
, Lisp_Object desired_locale
)
2166 if (! EQ (*plocale
, desired_locale
))
2168 *plocale
= desired_locale
;
2170 /* Changing categories like LC_TIME usually requires to specify
2171 an encoding suitable for the new locale, but MS-Windows's
2172 'setlocale' will only switch the encoding when LC_ALL is
2173 specified. So we ignore CATEGORY, use LC_ALL instead, and
2174 then restore LC_NUMERIC to "C", so reading and printing
2175 numbers is unaffected. */
2176 setlocale (LC_ALL
, (STRINGP (desired_locale
)
2177 ? SSDATA (desired_locale
)
2180 #else /* !WINDOWSNT */
2181 setlocale (category
, (STRINGP (desired_locale
)
2182 ? SSDATA (desired_locale
)
2184 #endif /* !WINDOWSNT */
2188 /* Set system time locale to match Vsystem_time_locale, if possible. */
2190 synchronize_system_time_locale (void)
2192 synchronize_locale (LC_TIME
, &Vprevious_system_time_locale
,
2193 Vsystem_time_locale
);
2196 /* Set system messages locale to match Vsystem_messages_locale, if
2199 synchronize_system_messages_locale (void)
2202 synchronize_locale (LC_MESSAGES
, &Vprevious_system_messages_locale
,
2203 Vsystem_messages_locale
);
2206 #endif /* HAVE_SETLOCALE */
2210 decode_env_path (const char *evarname
, const char *defalt
, bool empty
)
2212 const char *path
, *p
;
2213 Lisp_Object lpath
, element
, tem
;
2214 /* Default is to use "." for empty path elements.
2215 But if argument EMPTY is true, use nil instead. */
2216 Lisp_Object empty_element
= empty
? Qnil
: build_string (".");
2219 static const char *emacs_dir_env
= "%emacs_dir%/";
2220 const size_t emacs_dir_len
= strlen (emacs_dir_env
);
2221 const char *edir
= egetenv ("emacs_dir");
2222 char emacs_dir
[MAX_UTF8_PATH
];
2224 /* egetenv looks in process-environment, which holds the variables
2225 in their original system-locale encoding. We need emacs_dir to
2228 filename_from_ansi (edir
, emacs_dir
);
2231 /* It's okay to use getenv here, because this function is only used
2232 to initialize variables when Emacs starts up, and isn't called
2235 path
= getenv (evarname
);
2246 /* Ensure values from the environment use the proper directory separator. */
2252 char *path_utf8
, *q
, *d
;
2255 /* Convert each element of PATH to UTF-8. */
2256 p
= path_copy
= alloca (strlen (path
) + 1);
2257 strcpy (path_copy
, path
);
2258 d
= path_utf8
= alloca (4 * strlen (path
) + 1);
2261 q
= _mbschr (p
, SEPCHAR
);
2264 cnv_result
= filename_from_ansi (p
, d
);
2269 /* If conversion of this PATH elements fails, make sure
2270 destination pointer will stay put, thus effectively
2271 ignoring the offending element. */
2272 if (cnv_result
== 0)
2278 else if (cnv_result
!= 0 && d
> path_utf8
)
2279 d
[-1] = '\0'; /* remove last semi-colon and null-terminate PATH */
2281 path_copy
= path_utf8
;
2283 path_copy
= alloca (strlen (path
) + 1);
2284 strcpy (path_copy
, path
);
2286 dostounix_filename (path_copy
);
2293 p
= strchr (path
, SEPCHAR
);
2295 p
= path
+ strlen (path
);
2296 element
= ((p
- path
) ? make_unibyte_string (path
, p
- path
)
2298 if (! NILP (element
))
2301 /* Relative file names in the default path are interpreted as
2302 being relative to $emacs_dir. */
2303 if (edir
&& defaulted
2304 && strncmp (path
, emacs_dir_env
, emacs_dir_len
) == 0)
2305 element
= Fexpand_file_name (Fsubstring
2307 make_number (emacs_dir_len
),
2309 build_unibyte_string (emacs_dir
));
2312 /* Add /: to the front of the name
2313 if it would otherwise be treated as magic. */
2314 tem
= Ffind_file_name_handler (element
, Qt
);
2316 /* However, if the handler says "I'm safe",
2317 don't bother adding /:. */
2321 prop
= Fget (tem
, intern ("safe-magic"));
2328 AUTO_STRING (slash_colon
, "/:");
2329 element
= concat2 (slash_colon
, element
);
2331 } /* !NILP (element) */
2333 lpath
= Fcons (element
, lpath
);
2339 return Fnreverse (lpath
);
2342 DEFUN ("daemonp", Fdaemonp
, Sdaemonp
, 0, 0, 0,
2343 doc
: /* Return non-nil if the current emacs process is a daemon.
2344 If the daemon was given a name argument, return that name. */)
2349 return build_string (daemon_name
);
2356 DEFUN ("daemon-initialized", Fdaemon_initialized
, Sdaemon_initialized
, 0, 0, 0,
2357 doc
: /* Mark the Emacs daemon as being initialized.
2358 This finishes the daemonization process by doing the other half of detaching
2359 from the parent process and its tty file descriptors. */)
2365 error ("This function can only be called if emacs is run as a daemon");
2367 if (!DAEMON_RUNNING
)
2368 error ("The daemon has already been initialized");
2370 if (NILP (Vafter_init_time
))
2371 error ("This function can only be called after loading the init files");
2375 /* Get rid of stdin, stdout and stderr. */
2376 nfd
= emacs_open ("/dev/null", O_RDWR
, 0);
2378 err
|= dup2 (nfd
, 0) < 0;
2379 err
|= dup2 (nfd
, 1) < 0;
2380 err
|= dup2 (nfd
, 2) < 0;
2381 err
|= emacs_close (nfd
) != 0;
2383 /* Closing the pipe will notify the parent that it can exit.
2384 FIXME: In case some other process inherited the pipe, closing it here
2385 won't notify the parent because it's still open elsewhere, so we
2386 additionally send a byte, just to make sure the parent really exits.
2387 Instead, we should probably close the pipe in start-process and
2388 call-process to make sure the pipe is never inherited by
2390 err
|= write (daemon_pipe
[1], "\n", 1) < 0;
2391 err
|= emacs_close (daemon_pipe
[1]) != 0;
2392 /* Set it to an invalid value so we know we've already run this function. */
2393 daemon_pipe
[1] = -1;
2394 #else /* WINDOWSNT */
2395 /* Signal the waiting emacsclient process. */
2396 err
|= SetEvent (w32_daemon_event
) == 0;
2397 err
|= CloseHandle (w32_daemon_event
) == 0;
2398 /* Set it to an invalid value so we know we've already run this function. */
2399 w32_daemon_event
= INVALID_HANDLE_VALUE
;
2403 error ("I/O error during daemon initialization");
2408 syms_of_emacs (void)
2410 DEFSYM (Qfile_name_handler_alist
, "file-name-handler-alist");
2411 DEFSYM (Qrisky_local_variable
, "risky-local-variable");
2412 DEFSYM (Qkill_emacs
, "kill-emacs");
2413 DEFSYM (Qkill_emacs_hook
, "kill-emacs-hook");
2416 defsubr (&Sdump_emacs
);
2419 defsubr (&Skill_emacs
);
2421 defsubr (&Sinvocation_name
);
2422 defsubr (&Sinvocation_directory
);
2423 defsubr (&Sdaemonp
);
2424 defsubr (&Sdaemon_initialized
);
2426 DEFVAR_LISP ("command-line-args", Vcommand_line_args
,
2427 doc
: /* Args passed by shell to Emacs, as a list of strings.
2428 Many arguments are deleted from the list as they are processed. */);
2430 DEFVAR_LISP ("system-type", Vsystem_type
,
2431 doc
: /* The value is a symbol indicating the type of operating system you are using.
2433 `gnu' compiled for a GNU Hurd system.
2434 `gnu/linux' compiled for a GNU/Linux system.
2435 `gnu/kfreebsd' compiled for a GNU system with a FreeBSD kernel.
2436 `darwin' compiled for Darwin (GNU-Darwin, Mac OS X, ...).
2437 `ms-dos' compiled as an MS-DOS application.
2438 `windows-nt' compiled as a native W32 application.
2439 `cygwin' compiled using the Cygwin library.
2440 Anything else (in Emacs 24.1, the possibilities are: aix, berkeley-unix,
2441 hpux, irix, usg-unix-v) indicates some sort of Unix system. */);
2442 Vsystem_type
= intern_c_string (SYSTEM_TYPE
);
2443 /* See configure.ac for the possible SYSTEM_TYPEs. */
2445 DEFVAR_LISP ("system-configuration", Vsystem_configuration
,
2446 doc
: /* Value is string indicating configuration Emacs was built for. */);
2447 Vsystem_configuration
= build_string (EMACS_CONFIGURATION
);
2449 DEFVAR_LISP ("system-configuration-options", Vsystem_configuration_options
,
2450 doc
: /* String containing the configuration options Emacs was built with. */);
2451 Vsystem_configuration_options
= build_string (EMACS_CONFIG_OPTIONS
);
2453 DEFVAR_LISP ("system-configuration-features", Vsystem_configuration_features
,
2454 doc
: /* String listing some of the main features this Emacs was compiled with.
2455 An element of the form \"FOO\" generally means that HAVE_FOO was
2456 defined during the build.
2458 This is mainly intended for diagnostic purposes in bug reports.
2459 Don't rely on it for testing whether a feature you want to use is available. */);
2460 Vsystem_configuration_features
= build_string (EMACS_CONFIG_FEATURES
);
2462 DEFVAR_BOOL ("noninteractive", noninteractive1
,
2463 doc
: /* Non-nil means Emacs is running without interactive terminal. */);
2465 DEFVAR_LISP ("kill-emacs-hook", Vkill_emacs_hook
,
2466 doc
: /* Hook run when `kill-emacs' is called.
2467 Since `kill-emacs' may be invoked when the terminal is disconnected (or
2468 in other similar situations), functions placed on this hook should not
2469 expect to be able to interact with the user. To ask for confirmation,
2470 see `kill-emacs-query-functions' instead.
2472 Before Emacs 24.1, the hook was not run in batch mode, i.e., if
2473 `noninteractive' was non-nil. */);
2474 Vkill_emacs_hook
= Qnil
;
2476 DEFVAR_LISP ("path-separator", Vpath_separator
,
2477 doc
: /* String containing the character that separates directories in
2478 search paths, such as PATH and other similar environment variables. */);
2481 Vpath_separator
= make_string (&c
, 1);
2484 DEFVAR_LISP ("invocation-name", Vinvocation_name
,
2485 doc
: /* The program name that was used to run Emacs.
2486 Any directory names are omitted. */);
2488 DEFVAR_LISP ("invocation-directory", Vinvocation_directory
,
2489 doc
: /* The directory in which the Emacs executable was found, to run it.
2490 The value is nil if that directory's name is not known. */);
2492 DEFVAR_LISP ("installation-directory", Vinstallation_directory
,
2493 doc
: /* A directory within which to look for the `lib-src' and `etc' directories.
2494 In an installed Emacs, this is normally nil. It is non-nil if
2495 both `lib-src' (on MS-DOS, `info') and `etc' directories are found
2496 within the variable `invocation-directory' or its parent. For example,
2497 this is the case when running an uninstalled Emacs executable from its
2498 build directory. */);
2499 Vinstallation_directory
= Qnil
;
2501 DEFVAR_LISP ("system-messages-locale", Vsystem_messages_locale
,
2502 doc
: /* System locale for messages. */);
2503 Vsystem_messages_locale
= Qnil
;
2505 DEFVAR_LISP ("previous-system-messages-locale",
2506 Vprevious_system_messages_locale
,
2507 doc
: /* Most recently used system locale for messages. */);
2508 Vprevious_system_messages_locale
= Qnil
;
2510 DEFVAR_LISP ("system-time-locale", Vsystem_time_locale
,
2511 doc
: /* System locale for time. */);
2512 Vsystem_time_locale
= Qnil
;
2514 DEFVAR_LISP ("previous-system-time-locale", Vprevious_system_time_locale
,
2515 doc
: /* Most recently used system locale for time. */);
2516 Vprevious_system_time_locale
= Qnil
;
2518 DEFVAR_LISP ("before-init-time", Vbefore_init_time
,
2519 doc
: /* Value of `current-time' before Emacs begins initialization. */);
2520 Vbefore_init_time
= Qnil
;
2522 DEFVAR_LISP ("after-init-time", Vafter_init_time
,
2523 doc
: /* Value of `current-time' after loading the init files.
2524 This is nil during initialization. */);
2525 Vafter_init_time
= Qnil
;
2527 DEFVAR_BOOL ("inhibit-x-resources", inhibit_x_resources
,
2528 doc
: /* If non-nil, X resources, Windows Registry settings, and NS defaults are not used. */);
2529 inhibit_x_resources
= 0;
2531 DEFVAR_LISP ("emacs-copyright", Vemacs_copyright
,
2532 doc
: /* Short copyright string for this version of Emacs. */);
2533 Vemacs_copyright
= build_string (emacs_copyright
);
2535 DEFVAR_LISP ("emacs-version", Vemacs_version
,
2536 doc
: /* Version numbers of this version of Emacs. */);
2537 Vemacs_version
= build_string (emacs_version
);
2539 DEFVAR_LISP ("report-emacs-bug-address", Vreport_emacs_bug_address
,
2540 doc
: /* Address of mailing list for GNU Emacs bugs. */);
2541 Vreport_emacs_bug_address
= build_string (emacs_bugreport
);
2543 DEFVAR_LISP ("dynamic-library-alist", Vdynamic_library_alist
,
2544 doc
: /* Alist of dynamic libraries vs external files implementing them.
2545 Each element is a list (LIBRARY FILE...), where the car is a symbol
2546 representing a supported external library, and the rest are strings giving
2547 alternate filenames for that library.
2549 Emacs tries to load the library from the files in the order they appear on
2550 the list; if none is loaded, the running session of Emacs won't have access
2553 Note that image types `pbm' and `xbm' do not need entries in this variable
2554 because they do not depend on external libraries and are always available.
2556 Also note that this is not a generic facility for accessing external
2557 libraries; only those already known by Emacs will be loaded. */);
2558 Vdynamic_library_alist
= Qnil
;
2559 Fput (intern_c_string ("dynamic-library-alist"), Qrisky_local_variable
, Qt
);
2562 Vlibrary_cache
= Qnil
;
2563 staticpro (&Vlibrary_cache
);