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
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 ();
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
);
783 sort_args (argc
, argv
);
785 while (argv
[argc
]) argc
++;
787 if (argmatch (argv
, argc
, "-version", "--version", 3, NULL
, &skip_args
))
789 const char *version
, *copyright
;
792 Lisp_Object tem
, tem2
;
793 tem
= Fsymbol_value (intern_c_string ("emacs-version"));
794 tem2
= Fsymbol_value (intern_c_string ("emacs-copyright"));
797 fprintf (stderr
, "Invalid value of 'emacs-version'\n");
802 fprintf (stderr
, "Invalid value of 'emacs-copyright'\n");
807 version
= SSDATA (tem
);
808 copyright
= SSDATA (tem2
);
813 version
= emacs_version
;
814 copyright
= emacs_copyright
;
816 printf ("%s %s\n", PACKAGE_NAME
, version
);
817 printf ("%s\n", copyright
);
818 printf ("%s comes with ABSOLUTELY NO WARRANTY.\n", PACKAGE_NAME
);
819 printf ("You may redistribute copies of %s\n", PACKAGE_NAME
);
820 printf ("under the terms of the GNU General Public License.\n");
821 printf ("For more information about these matters, ");
822 printf ("see the file named COPYING.\n");
826 if (argmatch (argv
, argc
, "-chdir", "--chdir", 4, &ch_to_dir
, &skip_args
))
829 /* argv[] array is kept in its original ANSI codepage encoding,
830 we need to convert to UTF-8, for chdir to work. */
831 char newdir
[MAX_UTF8_PATH
];
833 filename_from_ansi (ch_to_dir
, newdir
);
836 original_pwd
= get_current_dir_name ();
837 if (chdir (ch_to_dir
) != 0)
839 fprintf (stderr
, "%s: Can't chdir to %s: %s\n",
840 argv
[0], ch_to_dir
, strerror (errno
));
845 dumping
= !initialized
&& (strcmp (argv
[argc
- 1], "dump") == 0
846 || strcmp (argv
[argc
- 1], "bootstrap") == 0);
848 #ifdef HAVE_PERSONALITY_LINUX32
849 if (dumping
&& ! getenv ("EMACS_HEAP_EXEC"))
851 /* Set this so we only do this once. */
852 xputenv ("EMACS_HEAP_EXEC=true");
854 /* A flag to turn off address randomization which is introduced
855 in linux kernel shipped with fedora core 4 */
856 #define ADD_NO_RANDOMIZE 0x0040000
857 personality (PER_LINUX32
| ADD_NO_RANDOMIZE
);
858 #undef ADD_NO_RANDOMIZE
860 execvp (argv
[0], argv
);
862 /* If the exec fails, try to dump anyway. */
863 emacs_perror (argv
[0]);
865 #endif /* HAVE_PERSONALITY_LINUX32 */
867 #if defined (HAVE_SETRLIMIT) && defined (RLIMIT_STACK) && !defined (CYGWIN)
868 /* Extend the stack space available. Don't do that if dumping,
869 since some systems (e.g. DJGPP) might define a smaller stack
870 limit at that time. And it's not needed on Cygwin, since emacs
871 is built with an 8MB stack. Moreover, the setrlimit call can
872 cause problems on Cygwin
873 (https://www.cygwin.com/ml/cygwin/2015-07/msg00096.html). */
876 && (!noninteractive
|| initialized
)
878 && !getrlimit (RLIMIT_STACK
, &rlim
))
881 /* Approximate the amount regex.c needs per unit of re_max_failures. */
882 int ratio
= 20 * sizeof (char *);
883 /* Then add 33% to cover the size of the smaller stacks that regex.c
884 successively allocates and discards, on its way to the maximum. */
886 /* Add in some extra to cover
887 what we're likely to use for other reasons. */
888 newlim
= re_max_failures
* ratio
+ 200000;
890 /* NetBSD (at least NetBSD 1.2G and former) has a bug in its
891 stack allocation routine for new process that the allocation
892 fails if stack limit is not on page boundary. So, round up the
893 new limit to page boundary. */
894 newlim
= (newlim
+ getpagesize () - 1) / getpagesize () * getpagesize ();
896 if (newlim
> rlim
.rlim_max
)
898 newlim
= rlim
.rlim_max
;
899 /* Don't let regex.c overflow the stack we have. */
900 re_max_failures
= (newlim
- 200000) / ratio
;
902 if (rlim
.rlim_cur
< newlim
)
903 rlim
.rlim_cur
= newlim
;
905 setrlimit (RLIMIT_STACK
, &rlim
);
907 #endif /* HAVE_SETRLIMIT and RLIMIT_STACK and not CYGWIN */
909 /* Record (approximately) where the stack begins. */
910 stack_bottom
= &stack_bottom_variable
;
914 emacs_backtrace (-1);
916 #if !defined SYSTEM_MALLOC && !defined HYBRID_MALLOC
917 /* Arrange to get warning messages as memory fills up. */
918 memory_warnings (0, malloc_warning
);
920 /* Call malloc at least once, to run malloc_initialize_hook.
921 Also call realloc and free for consistency. */
922 free (realloc (malloc (4), 4));
924 #endif /* not SYSTEM_MALLOC and not HYBRID_MALLOC */
927 SET_BINARY (fileno (stdin
));
929 SET_BINARY (fileno (stdout
));
932 /* Skip initial setlocale if LC_ALL is "C", as it's not needed in that case.
933 The build procedure uses this while dumping, to ensure that the
934 dumped Emacs does not have its system locale tables initialized,
935 as that might cause screwups when the dumped Emacs starts up. */
937 char *lc_all
= getenv ("LC_ALL");
938 do_initial_setlocale
= ! lc_all
|| strcmp (lc_all
, "C");
941 /* Set locale now, so that initial error messages are localized properly.
942 fixup_locale must wait until later, since it builds strings. */
943 if (do_initial_setlocale
)
944 setlocale (LC_ALL
, "");
945 text_quoting_flag
= using_utf8 ();
947 inhibit_window_system
= 0;
949 /* Handle the -t switch, which specifies filename to use as terminal. */
953 if (argmatch (argv
, argc
, "-t", "--terminal", 4, &term
, &skip_args
))
958 result
= emacs_open (term
, O_RDWR
, 0);
959 if (result
< 0 || fcntl (0, F_DUPFD_CLOEXEC
, 1) < 0)
961 char *errstring
= strerror (errno
);
962 fprintf (stderr
, "%s: %s: %s\n", argv
[0], term
, errstring
);
967 fprintf (stderr
, "%s: %s: not a tty\n", argv
[0], term
);
970 fprintf (stderr
, "Using %s\n", term
);
971 #ifdef HAVE_WINDOW_SYSTEM
972 inhibit_window_system
= 1; /* -t => -nw */
979 /* Command line option --no-windows is deprecated and thus not mentioned
980 in the manual and usage information. */
981 if (argmatch (argv
, argc
, "-nw", "--no-window-system", 6, NULL
, &skip_args
)
982 || argmatch (argv
, argc
, "-nw", "--no-windows", 6, NULL
, &skip_args
))
983 inhibit_window_system
= 1;
985 /* Handle the -batch switch, which means don't do interactive display. */
987 if (argmatch (argv
, argc
, "-batch", "--batch", 5, NULL
, &skip_args
))
990 Vundo_outer_limit
= Qnil
;
992 if (argmatch (argv
, argc
, "-script", "--script", 3, &junk
, &skip_args
))
994 noninteractive
= 1; /* Set batch mode. */
995 /* Convert --script to -scriptload, un-skip it, and sort again
996 so that it will be handled in proper sequence. */
997 /* FIXME broken for --script=FILE - is that supposed to work? */
998 argv
[skip_args
- 1] = (char *) "-scriptload";
1000 sort_args (argc
, argv
);
1003 /* Handle the --help option, which gives a usage message. */
1004 if (argmatch (argv
, argc
, "-help", "--help", 3, NULL
, &skip_args
))
1007 printf ("Usage: %s [OPTION-OR-FILENAME]...\n", argv
[0]);
1008 for (i
= 0; i
< ARRAYELTS (usage_message
); i
++)
1009 fputs (usage_message
[i
], stdout
);
1014 /* Make sure IS_DAEMON starts up as false. */
1017 w32_daemon_event
= NULL
;
1020 if (argmatch (argv
, argc
, "-daemon", "--daemon", 5, NULL
, &skip_args
)
1021 || argmatch (argv
, argc
, "-daemon", "--daemon", 5, &dname_arg
, &skip_args
))
1026 /* Start as a daemon: fork a new child process which will run the
1027 rest of the initialization code, then exit.
1029 Detaching a daemon requires the following steps:
1033 - close the tty file-descriptors
1035 We only want to do the last 2 steps once the daemon is ready to
1036 serve requests, i.e. after loading .emacs (initialization).
1037 OTOH initialization may start subprocesses (e.g. ispell) and these
1038 should be run from the proper process (the one that will end up
1039 running as daemon) and with the proper "session id" in order for
1040 them to keep working after detaching, so fork and setsid need to be
1041 performed before initialization.
1043 We want to avoid exiting before the server socket is ready, so
1044 use a pipe for synchronization. The parent waits for the child
1045 to close its end of the pipe (using `daemon-initialized')
1047 if (emacs_pipe (daemon_pipe
) != 0)
1049 fprintf (stderr
, "Cannot pipe!\n");
1053 #ifndef DAEMON_MUST_EXEC
1055 fprintf (stderr
, "\nWarning: due to a long standing Gtk+ bug\nhttp://bugzilla.gnome.org/show_bug.cgi?id=85715\n\
1056 Emacs might crash when run in daemon mode and the X11 connection is unexpectedly lost.\n\
1057 Using an Emacs configured with --with-x-toolkit=lucid does not have this problem.\n");
1058 #endif /* USE_GTK */
1060 #else /* DAEMON_MUST_EXEC */
1061 if (!dname_arg
|| !strchr (dname_arg
, '\n'))
1062 f
= fork (); /* in orig */
1064 f
= 0; /* in exec'd */
1065 #endif /* !DAEMON_MUST_EXEC */
1071 /* Close unused writing end of the pipe. */
1072 emacs_close (daemon_pipe
[1]);
1074 /* Just wait for the child to close its end of the pipe. */
1077 retval
= read (daemon_pipe
[0], &buf
, 1);
1079 while (retval
== -1 && errno
== EINTR
);
1083 fprintf (stderr
, "Error reading status from child\n");
1086 else if (retval
== 0)
1088 fprintf (stderr
, "Error: server did not start correctly\n");
1092 emacs_close (daemon_pipe
[0]);
1097 emacs_perror ("fork");
1098 exit (EXIT_CANCELED
);
1101 #ifdef DAEMON_MUST_EXEC
1103 /* In orig process, forked as child, OR in exec'd. */
1104 if (!dname_arg
|| !strchr (dname_arg
, '\n'))
1105 { /* In orig, child: now exec w/special daemon name. */
1108 snprintf (fdStr
, sizeof fdStr
,
1109 "--daemon=\n%d,%d\n%s", daemon_pipe
[0],
1110 daemon_pipe
[1], dname_arg
? dname_arg
: "");
1112 if (! (0 <= fdStrlen
&& fdStrlen
< sizeof fdStr
))
1114 fprintf (stderr
, "daemon: child name too long\n");
1115 exit (EXIT_CANNOT_INVOKE
);
1118 argv
[skip_args
] = fdStr
;
1120 fcntl (daemon_pipe
[0], F_SETFD
, 0);
1121 fcntl (daemon_pipe
[1], F_SETFD
, 0);
1122 execvp (argv
[0], argv
);
1123 emacs_perror (argv
[0]);
1124 exit (errno
== ENOENT
? EXIT_ENOENT
: EXIT_CANNOT_INVOKE
);
1127 /* In exec'd: parse special dname into pipe and name info. */
1128 if (!dname_arg
|| !strchr (dname_arg
, '\n')
1129 || strlen (dname_arg
) < 1 || strlen (dname_arg
) > 70)
1131 fprintf (stderr
, "emacs daemon: daemon name absent or too long\n");
1132 exit (EXIT_CANNOT_INVOKE
);
1134 dname_arg2
[0] = '\0';
1135 sscanf (dname_arg
, "\n%d,%d\n%s", &(daemon_pipe
[0]), &(daemon_pipe
[1]),
1137 dname_arg
= *dname_arg2
? dname_arg2
: NULL
;
1138 fcntl (daemon_pipe
[1], F_SETFD
, FD_CLOEXEC
);
1140 #endif /* DAEMON_MUST_EXEC */
1142 /* Close unused reading end of the pipe. */
1143 emacs_close (daemon_pipe
[0]);
1146 #elif defined(WINDOWSNT)
1147 /* Indicate that we want daemon mode. */
1148 w32_daemon_event
= CreateEvent (NULL
, TRUE
, FALSE
, W32_DAEMON_EVENT
);
1149 if (w32_daemon_event
== NULL
)
1151 fprintf (stderr
, "Couldn't create MS-Windows event for daemon: %s\n",
1156 fprintf (stderr
, "This platform does not support the -daemon flag.\n");
1160 daemon_name
= xstrdup (dname_arg
);
1163 #if defined HAVE_PTHREAD && !defined SYSTEM_MALLOC \
1164 && !defined DOUG_LEA_MALLOC && !defined HYBRID_MALLOC
1165 # ifndef CANNOT_DUMP
1166 /* Do not make gmalloc thread-safe when creating bootstrap-emacs, as
1167 that causes an infinite recursive loop with FreeBSD. See
1168 Bug#14569. The part of this bug involving Cygwin is no longer
1169 relevant, now that Cygwin defines HYBRID_MALLOC. */
1170 if (!noninteractive
|| initialized
)
1172 malloc_enable_thread ();
1175 init_signals (dumping
);
1177 noninteractive1
= noninteractive
;
1179 /* Perform basic initializations (not merely interning symbols). */
1186 init_charset_once ();
1187 init_coding_once ();
1188 init_syntax_once (); /* Create standard syntax table. */
1189 init_category_once (); /* Create standard category table. */
1190 init_casetab_once (); /* Must be done before init_buffer_once. */
1191 init_buffer_once (); /* Create buffer table and some buffers. */
1192 init_minibuf_once (); /* Create list of minibuffers. */
1193 /* Must precede init_window_once. */
1195 /* Call syms_of_xfaces before init_window_once because that
1196 function creates Vterminal_frame. Termcap frames now use
1197 faces, and the face implementation uses some symbols as
1200 /* XXX syms_of_keyboard uses some symbols in keymap.c. It would
1201 be better to arrange things not to have this dependency. */
1203 /* Call syms_of_keyboard before init_window_once because
1204 keyboard sets up symbols that include some face names that
1205 the X support will want to use. This can happen when
1206 CANNOT_DUMP is defined. */
1207 syms_of_keyboard ();
1209 /* Called before syms_of_fileio, because it sets up Qerror_condition. */
1211 syms_of_fns (); /* Before syms_of_charset which uses hashtables. */
1213 /* Before syms_of_coding to initialize Vgc_cons_threshold. */
1215 /* May call Ffuncall and so GC, thus the latter should be initialized. */
1217 /* Before syms_of_coding because it initializes Qcharsetp. */
1219 /* Before init_window_once, because it sets up the
1220 Vcoding_system_hash_table. */
1221 syms_of_coding (); /* This should be after syms_of_fileio. */
1223 init_window_once (); /* Init the window system. */
1224 #ifdef HAVE_WINDOW_SYSTEM
1225 init_fringe_once (); /* Swap bitmaps if necessary. */
1226 #endif /* HAVE_WINDOW_SYSTEM */
1231 if (do_initial_setlocale
)
1234 Vsystem_messages_locale
= Vprevious_system_messages_locale
;
1235 Vsystem_time_locale
= Vprevious_system_time_locale
;
1240 running_asynch_code
= 0;
1244 = argmatch (argv
, argc
, "-nl", "--no-loadup", 6, NULL
, &skip_args
);
1247 = argmatch (argv
, argc
, "-nsl", "--no-site-lisp", 11, NULL
, &skip_args
);
1250 ns_pool
= ns_alloc_autorelease_pool ();
1251 #ifdef NS_IMPL_GNUSTEP
1252 /* GNUstep stupidly resets our locale settings after we made them. */
1256 if (!noninteractive
)
1258 #ifdef NS_IMPL_COCOA
1259 /* Started from GUI? */
1260 /* FIXME: Do the right thing if getenv returns NULL, or if
1262 if (! inhibit_window_system
&& ! isatty (0) && ! ch_to_dir
)
1263 chdir (getenv ("HOME"));
1264 if (skip_args
< argc
)
1266 if (!strncmp (argv
[skip_args
], "-psn", 4))
1269 if (! ch_to_dir
) chdir (getenv ("HOME"));
1271 else if (skip_args
+1 < argc
&& !strncmp (argv
[skip_args
+1], "-psn", 4))
1274 if (! ch_to_dir
) chdir (getenv ("HOME"));
1279 #endif /* HAVE_NS */
1281 #ifdef HAVE_X_WINDOWS
1282 /* Stupid kludge to catch command-line display spec. We can't
1283 handle this argument entirely in window system dependent code
1284 because we don't even know which window system dependent code
1285 to run until we've recognized this argument. */
1287 char *displayname
= 0;
1288 int count_before
= skip_args
;
1290 /* Skip any number of -d options, but only use the last one. */
1293 int count_before_this
= skip_args
;
1295 if (argmatch (argv
, argc
, "-d", "--display", 3, &displayname
, &skip_args
))
1297 else if (argmatch (argv
, argc
, "-display", 0, 3, &displayname
, &skip_args
))
1302 count_before
= count_before_this
;
1305 /* If we have the form --display=NAME,
1306 convert it into -d name.
1307 This requires inserting a new element into argv. */
1308 if (displayname
&& count_before
< skip_args
)
1310 if (skip_args
== count_before
+ 1)
1312 memmove (argv
+ count_before
+ 3, argv
+ count_before
+ 2,
1313 (argc
- (count_before
+ 2)) * sizeof *argv
);
1314 argv
[count_before
+ 2] = displayname
;
1317 argv
[count_before
+ 1] = (char *) "-d";
1322 if (argmatch (argv
, argc
, "-Q", "--quick", 3, NULL
, &skip_args
)
1323 || argmatch (argv
, argc
, "-quick", 0, 2, NULL
, &skip_args
))
1327 /* Don't actually discard this arg. */
1328 skip_args
= count_before
;
1330 #else /* !HAVE_X_WINDOWS */
1333 int count_before
= skip_args
;
1335 if (argmatch (argv
, argc
, "-Q", "--quick", 3, NULL
, &skip_args
)
1336 || argmatch (argv
, argc
, "-quick", 0, 2, NULL
, &skip_args
))
1339 skip_args
= count_before
;
1343 /* argmatch must not be used after here,
1344 except when building temacs
1345 because the -d argument has not been skipped in skip_args. */
1348 /* Call early 'cause init_environment needs it. */
1350 /* Set defaults for several environment variables. */
1352 init_environment (argc
, argv
, skip_args
);
1357 #ifdef HAVE_GFILENOTIFY
1358 globals_of_gfilenotify ();
1363 #ifdef HAVE_W32NOTIFY
1364 globals_of_w32notify ();
1366 /* Initialize environment from registry settings. */
1367 init_environment (argv
);
1368 init_ntproc (dumping
); /* must precede init_editfns. */
1371 /* Initialize and GC-protect Vinitial_environment and
1372 Vprocess_environment before set_initial_environment fills them
1375 syms_of_callproc ();
1376 /* egetenv is a pretty low-level facility, which may get called in
1377 many circumstances; it seems flimsy to put off initializing it
1378 until calling init_callproc. Do not do it when dumping. */
1380 set_initial_environment ();
1382 /* AIX crashes are reported in system versions 3.2.3 and 3.2.4
1383 if this is not done. Do it after set_global_environment so that we
1384 don't pollute Vglobal_environment. */
1385 /* Setting LANG here will defeat the startup locale processing... */
1390 /* Init buffer storage and default directory of main buffer. */
1391 init_buffer (initialized
);
1393 init_callproc_1 (); /* Must precede init_cmdargs and init_sys_modes. */
1395 /* Must precede init_lread. */
1396 init_cmdargs (argc
, argv
, skip_args
, original_pwd
);
1400 /* Erase any pre-dump messages in the message log, to avoid confusion. */
1401 Lisp_Object old_log_max
;
1402 old_log_max
= Vmessage_log_max
;
1403 XSETFASTINT (Vmessage_log_max
, 0);
1404 message_dolog ("", 0, 1, 0);
1405 Vmessage_log_max
= old_log_max
;
1408 init_callproc (); /* Must follow init_cmdargs but not init_sys_modes. */
1412 /* Check to see if Emacs has been installed correctly. */
1413 check_windows_init_file ();
1416 /* Intern the names of all standard functions and variables;
1417 define standard keys. */
1421 /* The basic levels of Lisp must come first. Note that
1422 syms_of_data and some others have already been called. */
1427 syms_of_floatfns ();
1430 syms_of_bytecode ();
1432 syms_of_casefiddle ();
1434 syms_of_category ();
1436 syms_of_character ();
1443 syms_of_filelock ();
1446 /* syms_of_keymap (); */
1454 syms_of_terminal ();
1465 syms_of_textprop ();
1466 syms_of_composite ();
1469 #endif /* WINDOWSNT */
1476 #ifdef HAVE_WINDOW_SYSTEM
1479 #endif /* HAVE_WINDOW_SYSTEM */
1480 #ifdef HAVE_X_WINDOWS
1485 syms_of_xsettings ();
1492 #endif /* HAVE_X_WINDOWS */
1499 syms_of_decompress ();
1509 #endif /* HAVE_NTGUI */
1511 #if defined WINDOWSNT || defined HAVE_NTGUI
1512 syms_of_w32select ();
1519 syms_of_win16select ();
1526 syms_of_nsselect ();
1528 #endif /* HAVE_NS */
1532 #ifdef HAVE_GFILENOTIFY
1533 syms_of_gfilenotify ();
1534 #endif /* HAVE_GFILENOTIFY */
1538 #endif /* HAVE_INOTIFY */
1541 syms_of_dbusbind ();
1542 #endif /* HAVE_DBUS */
1546 #ifdef HAVE_W32NOTIFY
1547 syms_of_w32notify ();
1548 #endif /* HAVE_W32NOTIFY */
1549 #endif /* WINDOWSNT */
1551 syms_of_profiler ();
1553 keys_of_casefiddle ();
1556 keys_of_keyboard ();
1562 /* Initialization that must be done even if the global variable
1563 initialized is non zero. */
1565 globals_of_w32font ();
1566 globals_of_w32fns ();
1567 globals_of_w32menu ();
1568 #endif /* HAVE_NTGUI */
1570 #if defined WINDOWSNT || defined HAVE_NTGUI
1571 globals_of_w32select ();
1577 /* This calls putenv and so must precede init_process_emacs. Also,
1578 it sets Voperating_system_release, which init_process_emacs uses. */
1579 init_editfns (dumping
);
1581 /* These two call putenv. */
1589 /* This can create a thread that may call getenv, so it must follow
1590 all calls to putenv and setenv. Also, this sets up
1591 add_keyboard_wait_descriptor, which init_display uses. */
1592 init_process_emacs ();
1594 init_keyboard (); /* This too must precede init_sys_modes. */
1595 if (!noninteractive
)
1596 init_display (); /* Determine terminal type. Calls init_sys_modes. */
1599 init_crit (); /* w32notify.c needs this in batch mode. */
1600 #endif /* HAVE_W32NOTIFY */
1602 #ifdef HAVE_WINDOW_SYSTEM
1604 #endif /* HAVE_WINDOW_SYSTEM */
1612 /* Handle -l loadup, args passed by Makefile. */
1613 if (argmatch (argv
, argc
, "-l", "--load", 3, &file
, &skip_args
))
1616 char file_utf8
[MAX_UTF8_PATH
];
1618 if (filename_from_ansi (file
, file_utf8
) == 0)
1621 Vtop_level
= list2 (Qload
, build_unibyte_string (file
));
1623 /* Unless next switch is -nl, load "loadup.el" first thing. */
1625 Vtop_level
= list2 (Qload
, build_string ("loadup.el"));
1628 /* Set up for profiling. This is known to work on FreeBSD,
1629 GNU/Linux and MinGW. It might work on some other systems too.
1630 Give it a try and tell us if it works on your system. To compile
1631 for profiling, use the configure option --enable-profiling. */
1632 #if defined (__FreeBSD__) || defined (GNU_LINUX) || defined (__MINGW32__)
1637 extern unsigned char etext
asm ("etext");
1643 monstartup ((uintptr_t) __executable_start
, (uintptr_t) &etext
);
1652 /* Enter editor command loop. This never returns. */
1658 /* Sort the args so we can find the most important ones
1659 at the beginning of argv. */
1661 /* First, here's a table of all the standard options. */
1663 struct standard_args
1666 const char *longname
;
1671 static const struct standard_args standard_args
[] =
1673 { "-version", "--version", 150, 0 },
1674 { "-chdir", "--chdir", 130, 1 },
1675 { "-t", "--terminal", 120, 1 },
1676 { "-nw", "--no-window-system", 110, 0 },
1677 { "-nw", "--no-windows", 110, 0 },
1678 { "-batch", "--batch", 100, 0 },
1679 { "-script", "--script", 100, 1 },
1680 { "-daemon", "--daemon", 99, 0 },
1681 { "-help", "--help", 90, 0 },
1682 { "-nl", "--no-loadup", 70, 0 },
1683 { "-nsl", "--no-site-lisp", 65, 0 },
1684 /* -d must come last before the options handled in startup.el. */
1685 { "-d", "--display", 60, 1 },
1686 { "-display", 0, 60, 1 },
1687 /* Now for the options handled in `command-line' (startup.el). */
1688 /* (Note that to imply -nsl, -Q is partially handled here.) */
1689 { "-Q", "--quick", 55, 0 },
1690 { "-quick", 0, 55, 0 },
1691 { "-q", "--no-init-file", 50, 0 },
1692 { "-no-init-file", 0, 50, 0 },
1693 { "-no-x-resources", "--no-x-resources", 40, 0 },
1694 { "-no-site-file", "--no-site-file", 40, 0 },
1695 { "-u", "--user", 30, 1 },
1696 { "-user", 0, 30, 1 },
1697 { "-debug-init", "--debug-init", 20, 0 },
1698 { "-iconic", "--iconic", 15, 0 },
1699 { "-D", "--basic-display", 12, 0},
1700 { "-basic-display", 0, 12, 0},
1701 { "-nbc", "--no-blinking-cursor", 12, 0 },
1702 /* Now for the options handled in `command-line-1' (startup.el). */
1703 { "-nbi", "--no-bitmap-icon", 10, 0 },
1704 { "-bg", "--background-color", 10, 1 },
1705 { "-background", 0, 10, 1 },
1706 { "-fg", "--foreground-color", 10, 1 },
1707 { "-foreground", 0, 10, 1 },
1708 { "-bd", "--border-color", 10, 1 },
1709 { "-bw", "--border-width", 10, 1 },
1710 { "-ib", "--internal-border", 10, 1 },
1711 { "-ms", "--mouse-color", 10, 1 },
1712 { "-cr", "--cursor-color", 10, 1 },
1713 { "-fn", "--font", 10, 1 },
1714 { "-font", 0, 10, 1 },
1715 { "-fs", "--fullscreen", 10, 0 },
1716 { "-fw", "--fullwidth", 10, 0 },
1717 { "-fh", "--fullheight", 10, 0 },
1718 { "-mm", "--maximized", 10, 0 },
1719 { "-g", "--geometry", 10, 1 },
1720 { "-geometry", 0, 10, 1 },
1721 { "-T", "--title", 10, 1 },
1722 { "-title", 0, 10, 1 },
1723 { "-name", "--name", 10, 1 },
1724 { "-xrm", "--xrm", 10, 1 },
1725 { "-parent-id", "--parent-id", 10, 1 },
1726 { "-r", "--reverse-video", 5, 0 },
1728 { "-reverse", 0, 5, 0 },
1729 { "-hb", "--horizontal-scroll-bars", 5, 0 },
1730 { "-vb", "--vertical-scroll-bars", 5, 0 },
1731 { "-color", "--color", 5, 0},
1732 { "-no-splash", "--no-splash", 3, 0 },
1733 { "-no-desktop", "--no-desktop", 3, 0 },
1735 { "-NSAutoLaunch", 0, 5, 1 },
1736 { "-NXAutoLaunch", 0, 5, 1 },
1737 { "-_NSMachLaunch", 0, 85, 1 },
1738 { "-MachLaunch", 0, 85, 1 },
1739 { "-macosx", 0, 85, 0 },
1740 { "-NSHost", 0, 85, 1 },
1742 /* These have the same priority as ordinary file name args,
1743 so they are not reordered with respect to those. */
1744 { "-L", "--directory", 0, 1 },
1745 { "-directory", 0, 0, 1 },
1746 { "-l", "--load", 0, 1 },
1747 { "-load", 0, 0, 1 },
1748 /* This has no longname, because using --scriptload confuses sort_args,
1749 because then the --script long option seems to match twice; ie
1750 you can't have a long option which is a prefix of another long
1751 option. In any case, this is entirely an internal option. */
1752 { "-scriptload", NULL
, 0, 1 },
1753 { "-f", "--funcall", 0, 1 },
1754 { "-funcall", 0, 0, 1 },
1755 { "-eval", "--eval", 0, 1 },
1756 { "-execute", "--execute", 0, 1 },
1757 { "-find-file", "--find-file", 0, 1 },
1758 { "-visit", "--visit", 0, 1 },
1759 { "-file", "--file", 0, 1 },
1760 { "-insert", "--insert", 0, 1 },
1762 { "-NXOpen", 0, 0, 1 },
1763 { "-NXOpenTemp", 0, 0, 1 },
1764 { "-NSOpen", 0, 0, 1 },
1765 { "-NSOpenTemp", 0, 0, 1 },
1766 { "-GSFilePath", 0, 0, 1 },
1768 /* This should be processed after ordinary file name args and the like. */
1769 { "-kill", "--kill", -10, 0 },
1772 /* Reorder the elements of ARGV (assumed to have ARGC elements)
1773 so that the highest priority ones come first.
1774 Do not change the order of elements of equal priority.
1775 If an option takes an argument, keep it and its argument together.
1777 If an option that takes no argument appears more
1778 than once, eliminate all but one copy of it. */
1781 sort_args (int argc
, char **argv
)
1783 char **new = xmalloc (argc
* sizeof *new);
1784 /* For each element of argv,
1785 the corresponding element of options is:
1786 0 for an option that takes no arguments,
1787 1 for an option that takes one argument, etc.
1788 -1 for an ordinary non-option argument. */
1789 int *options
= xnmalloc (argc
, sizeof *options
);
1790 int *priority
= xnmalloc (argc
, sizeof *priority
);
1792 int incoming_used
= 1;
1796 /* Categorize all the options,
1797 and figure out which argv elts are option arguments. */
1798 for (from
= 1; from
< argc
; from
++)
1802 if (argv
[from
][0] == '-')
1806 /* If we have found "--", don't consider
1807 any more arguments as options. */
1808 if (argv
[from
][1] == '-' && argv
[from
][2] == 0)
1810 /* Leave the "--", and everything following it, at the end. */
1811 for (; from
< argc
; from
++)
1813 priority
[from
] = -100;
1819 /* Look for a match with a known old-fashioned option. */
1820 for (i
= 0; i
< ARRAYELTS (standard_args
); i
++)
1821 if (!strcmp (argv
[from
], standard_args
[i
].name
))
1823 options
[from
] = standard_args
[i
].nargs
;
1824 priority
[from
] = standard_args
[i
].priority
;
1825 if (from
+ standard_args
[i
].nargs
>= argc
)
1826 fatal ("Option '%s' requires an argument\n", argv
[from
]);
1827 from
+= standard_args
[i
].nargs
;
1831 /* Look for a match with a known long option.
1832 MATCH is -1 if no match so far, -2 if two or more matches so far,
1833 >= 0 (the table index of the match) if just one match so far. */
1834 if (argv
[from
][1] == '-')
1836 char const *equals
= strchr (argv
[from
], '=');
1838 equals
? equals
- argv
[from
] : strlen (argv
[from
]);
1842 for (i
= 0; i
< ARRAYELTS (standard_args
); i
++)
1843 if (standard_args
[i
].longname
1844 && !strncmp (argv
[from
], standard_args
[i
].longname
,
1853 /* If we found exactly one match, use that. */
1856 options
[from
] = standard_args
[match
].nargs
;
1857 priority
[from
] = standard_args
[match
].priority
;
1858 /* If --OPTION=VALUE syntax is used,
1859 this option uses just one argv element. */
1862 if (from
+ options
[from
] >= argc
)
1863 fatal ("Option '%s' requires an argument\n", argv
[from
]);
1864 from
+= options
[from
];
1866 /* FIXME When match < 0, shouldn't there be some error,
1867 or at least indication to the user that there was a
1874 /* Copy the arguments, in order of decreasing priority, to NEW. */
1876 while (incoming_used
< argc
)
1879 int best_priority
= -9999;
1881 /* Find the highest priority remaining option.
1882 If several have equal priority, take the first of them. */
1883 for (from
= 1; from
< argc
; from
++)
1885 if (argv
[from
] != 0 && priority
[from
] > best_priority
)
1887 best_priority
= priority
[from
];
1890 /* Skip option arguments--they are tied to the options. */
1891 if (options
[from
] > 0)
1892 from
+= options
[from
];
1898 /* Copy the highest priority remaining option, with its args, to NEW.
1899 Unless it is a duplicate of the previous one. */
1900 if (! (options
[best
] == 0
1901 && ! strcmp (new[to
- 1], argv
[best
])))
1903 new[to
++] = argv
[best
];
1904 for (i
= 0; i
< options
[best
]; i
++)
1905 new[to
++] = argv
[best
+ i
+ 1];
1908 incoming_used
+= 1 + (options
[best
] > 0 ? options
[best
] : 0);
1910 /* Clear out this option in ARGV. */
1912 for (i
= 0; i
< options
[best
]; i
++)
1913 argv
[best
+ i
+ 1] = 0;
1916 /* If duplicate options were deleted, fill up extra space with null ptrs. */
1920 memcpy (argv
, new, sizeof (char *) * argc
);
1927 DEFUN ("kill-emacs", Fkill_emacs
, Skill_emacs
, 0, 1, "P",
1928 doc
: /* Exit the Emacs job and kill it.
1929 If ARG is an integer, return ARG as the exit program code.
1930 If ARG is a string, stuff it as keyboard input.
1932 This function is called upon receipt of the signals SIGTERM
1933 or SIGHUP, and upon SIGINT in batch mode.
1935 The value of `kill-emacs-hook', if not void,
1936 is a list of functions (of no args),
1937 all of which are called before Emacs is actually killed. */
1938 attributes
: noreturn
)
1943 /* Fsignal calls emacs_abort () if it sees that waiting_for_input is
1945 waiting_for_input
= 0;
1946 run_hook (Qkill_emacs_hook
);
1948 #ifdef HAVE_X_WINDOWS
1949 /* Transfer any clipboards we own to the clipboard manager. */
1950 x_clipboard_manager_save_all ();
1953 shut_down_emacs (0, (STRINGP (arg
) && !feof (stdin
)) ? arg
: Qnil
);
1956 ns_release_autorelease_pool (ns_pool
);
1959 /* If we have an auto-save list file,
1960 kill it because we are exiting Emacs deliberately (not crashing).
1961 Do it after shut_down_emacs, which does an auto-save. */
1962 if (STRINGP (Vauto_save_list_file_name
))
1964 Lisp_Object listfile
;
1965 listfile
= Fexpand_file_name (Vauto_save_list_file_name
, Qnil
);
1966 unlink (SSDATA (listfile
));
1970 exit_code
= (XINT (arg
) < 0
1971 ? XINT (arg
) | INT_MIN
1972 : XINT (arg
) & INT_MAX
);
1974 exit_code
= EXIT_SUCCESS
;
1979 /* Perform an orderly shutdown of Emacs. Autosave any modified
1980 buffers, kill any child processes, clean up the terminal modes (if
1981 we're in the foreground), and other stuff like that. Don't perform
1982 any redisplay; this may be called when Emacs is shutting down in
1983 the background, or after its X connection has died.
1985 If SIG is a signal number, print a message for it.
1987 This is called by fatal signal handlers, X protocol error handlers,
1991 shut_down_emacs (int sig
, Lisp_Object stuff
)
1993 /* Prevent running of hooks from now on. */
1996 /* Don't update display from now on. */
1997 Vinhibit_redisplay
= Qt
;
1999 /* If we are controlling the terminal, reset terminal modes. */
2002 pid_t pgrp
= getpgrp ();
2003 pid_t tpgrp
= tcgetpgrp (0);
2004 if ((tpgrp
!= -1) && tpgrp
== pgrp
)
2006 reset_all_sys_modes ();
2007 if (sig
&& sig
!= SIGTERM
)
2009 static char const format
[] = "Fatal error %d: ";
2010 char buf
[sizeof format
- 2 + INT_STRLEN_BOUND (int)];
2011 int buflen
= sprintf (buf
, format
, sig
);
2012 char const *sig_desc
= safe_strsignal (sig
);
2013 emacs_write (STDERR_FILENO
, buf
, buflen
);
2014 emacs_write (STDERR_FILENO
, sig_desc
, strlen (sig_desc
));
2020 reset_all_sys_modes ();
2023 stuff_buffered_input (stuff
);
2025 inhibit_sentinels
= 1;
2026 kill_buffer_processes (Qnil
);
2027 Fdo_auto_save (Qt
, Qnil
);
2029 unlock_all_files ();
2031 /* There is a tendency for a SIGIO signal to arrive within exit,
2032 and cause a SIGHUP because the input descriptor is already closed. */
2035 /* Do this only if terminating normally, we want glyph matrices
2036 etc. in a core dump. */
2037 if (sig
== 0 || sig
== SIGTERM
)
2039 check_glyph_memory ();
2040 check_message_stack ();
2048 ns_term_shutdown (sig
);
2052 xml_cleanup_parser ();
2066 DEFUN ("dump-emacs", Fdump_emacs
, Sdump_emacs
, 2, 2, 0,
2067 doc
: /* Dump current state of Emacs into executable file FILENAME.
2068 Take symbols from SYMFILE (presumably the file you executed to run Emacs).
2069 This is used in the file `loadup.el' when building Emacs.
2071 You must run Emacs in batch mode in order to dump it. */)
2072 (Lisp_Object filename
, Lisp_Object symfile
)
2076 ptrdiff_t count
= SPECPDL_INDEX ();
2080 if (! noninteractive
)
2081 error ("Dumping Emacs works only in batch mode");
2084 error ("Emacs can be dumped only once");
2088 /* Warn if the gap between BSS end and heap start is larger than this. */
2089 # define MAX_HEAP_BSS_DIFF (1024*1024)
2091 if (heap_bss_diff
> MAX_HEAP_BSS_DIFF
)
2093 fprintf (stderr
, "**************************************************\n");
2094 fprintf (stderr
, "Warning: Your system has a gap between BSS and the\n");
2095 fprintf (stderr
, "heap (%"pMu
" bytes). This usually means that exec-shield\n",
2097 fprintf (stderr
, "or something similar is in effect. The dump may\n");
2098 fprintf (stderr
, "fail because of this. See the section about\n");
2099 fprintf (stderr
, "exec-shield in etc/PROBLEMS for more information.\n");
2100 fprintf (stderr
, "**************************************************\n");
2102 #endif /* GNU_LINUX */
2104 /* Bind `command-line-processed' to nil before dumping,
2105 so that the dumped Emacs will process its command line
2106 and set up to work with X windows if appropriate. */
2107 symbol
= intern ("command-line-processed");
2108 specbind (symbol
, Qnil
);
2110 CHECK_STRING (filename
);
2111 filename
= Fexpand_file_name (filename
, Qnil
);
2112 filename
= ENCODE_FILE (filename
);
2113 if (!NILP (symfile
))
2115 CHECK_STRING (symfile
);
2116 if (SCHARS (symfile
))
2118 symfile
= Fexpand_file_name (symfile
, Qnil
);
2119 symfile
= ENCODE_FILE (symfile
);
2124 Vpurify_flag
= Qnil
;
2127 /* Tell malloc where start of impure now is. */
2128 /* Also arrange for warnings when nearly out of space. */
2129 #if !defined SYSTEM_MALLOC && !defined HYBRID_MALLOC
2131 /* On Windows, this was done before dumping, and that once suffices.
2132 Meanwhile, my_edata is not valid on Windows. */
2133 memory_warnings (my_edata
, malloc_warning
);
2134 #endif /* not WINDOWSNT */
2135 #endif /* not SYSTEM_MALLOC and not HYBRID_MALLOC */
2136 #ifdef DOUG_LEA_MALLOC
2137 malloc_state_ptr
= malloc_get_state ();
2140 unexec (SSDATA (filename
), !NILP (symfile
) ? SSDATA (symfile
) : 0);
2142 #ifdef DOUG_LEA_MALLOC
2143 free (malloc_state_ptr
);
2147 Vlibrary_cache
= Qnil
;
2149 #ifdef HAVE_WINDOW_SYSTEM
2150 reset_image_types ();
2155 return unbind_to (count
, Qnil
);
2158 #endif /* not CANNOT_DUMP */
2161 /* Recover from setlocale (LC_ALL, ""). */
2165 /* The Emacs Lisp reader needs LC_NUMERIC to be "C",
2166 so that numbers are read and printed properly for Emacs Lisp. */
2167 setlocale (LC_NUMERIC
, "C");
2170 /* Set system locale CATEGORY, with previous locale *PLOCALE, to
2173 synchronize_locale (int category
, Lisp_Object
*plocale
, Lisp_Object desired_locale
)
2175 if (! EQ (*plocale
, desired_locale
))
2177 *plocale
= desired_locale
;
2179 /* Changing categories like LC_TIME usually requires to specify
2180 an encoding suitable for the new locale, but MS-Windows's
2181 'setlocale' will only switch the encoding when LC_ALL is
2182 specified. So we ignore CATEGORY, use LC_ALL instead, and
2183 then restore LC_NUMERIC to "C", so reading and printing
2184 numbers is unaffected. */
2185 setlocale (LC_ALL
, (STRINGP (desired_locale
)
2186 ? SSDATA (desired_locale
)
2189 #else /* !WINDOWSNT */
2190 setlocale (category
, (STRINGP (desired_locale
)
2191 ? SSDATA (desired_locale
)
2193 #endif /* !WINDOWSNT */
2197 /* Set system time locale to match Vsystem_time_locale, if possible. */
2199 synchronize_system_time_locale (void)
2201 synchronize_locale (LC_TIME
, &Vprevious_system_time_locale
,
2202 Vsystem_time_locale
);
2205 /* Set system messages locale to match Vsystem_messages_locale, if
2208 synchronize_system_messages_locale (void)
2211 synchronize_locale (LC_MESSAGES
, &Vprevious_system_messages_locale
,
2212 Vsystem_messages_locale
);
2215 #endif /* HAVE_SETLOCALE */
2219 decode_env_path (const char *evarname
, const char *defalt
, bool empty
)
2221 const char *path
, *p
;
2222 Lisp_Object lpath
, element
, tem
;
2223 /* Default is to use "." for empty path elements.
2224 But if argument EMPTY is true, use nil instead. */
2225 Lisp_Object empty_element
= empty
? Qnil
: build_string (".");
2228 static const char *emacs_dir_env
= "%emacs_dir%/";
2229 const size_t emacs_dir_len
= strlen (emacs_dir_env
);
2230 const char *edir
= egetenv ("emacs_dir");
2231 char emacs_dir
[MAX_UTF8_PATH
];
2233 /* egetenv looks in process-environment, which holds the variables
2234 in their original system-locale encoding. We need emacs_dir to
2237 filename_from_ansi (edir
, emacs_dir
);
2240 /* It's okay to use getenv here, because this function is only used
2241 to initialize variables when Emacs starts up, and isn't called
2244 path
= getenv (evarname
);
2255 /* Ensure values from the environment use the proper directory separator. */
2261 char *path_utf8
, *q
, *d
;
2264 /* Convert each element of PATH to UTF-8. */
2265 p
= path_copy
= alloca (strlen (path
) + 1);
2266 strcpy (path_copy
, path
);
2267 d
= path_utf8
= alloca (4 * strlen (path
) + 1);
2270 q
= _mbschr (p
, SEPCHAR
);
2273 cnv_result
= filename_from_ansi (p
, d
);
2278 /* If conversion of this PATH elements fails, make sure
2279 destination pointer will stay put, thus effectively
2280 ignoring the offending element. */
2281 if (cnv_result
== 0)
2287 else if (cnv_result
!= 0 && d
> path_utf8
)
2288 d
[-1] = '\0'; /* remove last semi-colon and null-terminate PATH */
2290 path_copy
= path_utf8
;
2292 path_copy
= alloca (strlen (path
) + 1);
2293 strcpy (path_copy
, path
);
2295 dostounix_filename (path_copy
);
2302 p
= strchr (path
, SEPCHAR
);
2304 p
= path
+ strlen (path
);
2305 element
= ((p
- path
) ? make_unibyte_string (path
, p
- path
)
2307 if (! NILP (element
))
2310 /* Relative file names in the default path are interpreted as
2311 being relative to $emacs_dir. */
2312 if (edir
&& defaulted
2313 && strncmp (path
, emacs_dir_env
, emacs_dir_len
) == 0)
2314 element
= Fexpand_file_name (Fsubstring
2316 make_number (emacs_dir_len
),
2318 build_unibyte_string (emacs_dir
));
2321 /* Add /: to the front of the name
2322 if it would otherwise be treated as magic. */
2323 tem
= Ffind_file_name_handler (element
, Qt
);
2325 /* However, if the handler says "I'm safe",
2326 don't bother adding /:. */
2330 prop
= Fget (tem
, intern ("safe-magic"));
2337 AUTO_STRING (slash_colon
, "/:");
2338 element
= concat2 (slash_colon
, element
);
2340 } /* !NILP (element) */
2342 lpath
= Fcons (element
, lpath
);
2348 return Fnreverse (lpath
);
2351 DEFUN ("daemonp", Fdaemonp
, Sdaemonp
, 0, 0, 0,
2352 doc
: /* Return non-nil if the current emacs process is a daemon.
2353 If the daemon was given a name argument, return that name. */)
2358 return build_string (daemon_name
);
2365 DEFUN ("daemon-initialized", Fdaemon_initialized
, Sdaemon_initialized
, 0, 0, 0,
2366 doc
: /* Mark the Emacs daemon as being initialized.
2367 This finishes the daemonization process by doing the other half of detaching
2368 from the parent process and its tty file descriptors. */)
2374 error ("This function can only be called if emacs is run as a daemon");
2376 if (!DAEMON_RUNNING
)
2377 error ("The daemon has already been initialized");
2379 if (NILP (Vafter_init_time
))
2380 error ("This function can only be called after loading the init files");
2384 /* Get rid of stdin, stdout and stderr. */
2385 nfd
= emacs_open ("/dev/null", O_RDWR
, 0);
2387 err
|= dup2 (nfd
, 0) < 0;
2388 err
|= dup2 (nfd
, 1) < 0;
2389 err
|= dup2 (nfd
, 2) < 0;
2390 err
|= emacs_close (nfd
) != 0;
2392 /* Closing the pipe will notify the parent that it can exit.
2393 FIXME: In case some other process inherited the pipe, closing it here
2394 won't notify the parent because it's still open elsewhere, so we
2395 additionally send a byte, just to make sure the parent really exits.
2396 Instead, we should probably close the pipe in start-process and
2397 call-process to make sure the pipe is never inherited by
2399 err
|= write (daemon_pipe
[1], "\n", 1) < 0;
2400 err
|= emacs_close (daemon_pipe
[1]) != 0;
2401 /* Set it to an invalid value so we know we've already run this function. */
2402 daemon_pipe
[1] = -1;
2403 #else /* WINDOWSNT */
2404 /* Signal the waiting emacsclient process. */
2405 err
|= SetEvent (w32_daemon_event
) == 0;
2406 err
|= CloseHandle (w32_daemon_event
) == 0;
2407 /* Set it to an invalid value so we know we've already run this function. */
2408 w32_daemon_event
= INVALID_HANDLE_VALUE
;
2412 error ("I/O error during daemon initialization");
2417 syms_of_emacs (void)
2419 DEFSYM (Qfile_name_handler_alist
, "file-name-handler-alist");
2420 DEFSYM (Qrisky_local_variable
, "risky-local-variable");
2421 DEFSYM (Qkill_emacs
, "kill-emacs");
2422 DEFSYM (Qkill_emacs_hook
, "kill-emacs-hook");
2425 defsubr (&Sdump_emacs
);
2428 defsubr (&Skill_emacs
);
2430 defsubr (&Sinvocation_name
);
2431 defsubr (&Sinvocation_directory
);
2432 defsubr (&Sdaemonp
);
2433 defsubr (&Sdaemon_initialized
);
2435 DEFVAR_LISP ("command-line-args", Vcommand_line_args
,
2436 doc
: /* Args passed by shell to Emacs, as a list of strings.
2437 Many arguments are deleted from the list as they are processed. */);
2439 DEFVAR_LISP ("system-type", Vsystem_type
,
2440 doc
: /* The value is a symbol indicating the type of operating system you are using.
2442 `gnu' compiled for a GNU Hurd system.
2443 `gnu/linux' compiled for a GNU/Linux system.
2444 `gnu/kfreebsd' compiled for a GNU system with a FreeBSD kernel.
2445 `darwin' compiled for Darwin (GNU-Darwin, Mac OS X, ...).
2446 `ms-dos' compiled as an MS-DOS application.
2447 `windows-nt' compiled as a native W32 application.
2448 `cygwin' compiled using the Cygwin library.
2449 Anything else (in Emacs 24.1, the possibilities are: aix, berkeley-unix,
2450 hpux, irix, usg-unix-v) indicates some sort of Unix system. */);
2451 Vsystem_type
= intern_c_string (SYSTEM_TYPE
);
2452 /* See configure.ac for the possible SYSTEM_TYPEs. */
2454 DEFVAR_LISP ("system-configuration", Vsystem_configuration
,
2455 doc
: /* Value is string indicating configuration Emacs was built for. */);
2456 Vsystem_configuration
= build_string (EMACS_CONFIGURATION
);
2458 DEFVAR_LISP ("system-configuration-options", Vsystem_configuration_options
,
2459 doc
: /* String containing the configuration options Emacs was built with. */);
2460 Vsystem_configuration_options
= build_string (EMACS_CONFIG_OPTIONS
);
2462 DEFVAR_LISP ("system-configuration-features", Vsystem_configuration_features
,
2463 doc
: /* String listing some of the main features this Emacs was compiled with.
2464 An element of the form \"FOO\" generally means that HAVE_FOO was
2465 defined during the build.
2467 This is mainly intended for diagnostic purposes in bug reports.
2468 Don't rely on it for testing whether a feature you want to use is available. */);
2469 Vsystem_configuration_features
= build_string (EMACS_CONFIG_FEATURES
);
2471 DEFVAR_BOOL ("noninteractive", noninteractive1
,
2472 doc
: /* Non-nil means Emacs is running without interactive terminal. */);
2474 DEFVAR_LISP ("kill-emacs-hook", Vkill_emacs_hook
,
2475 doc
: /* Hook run when `kill-emacs' is called.
2476 Since `kill-emacs' may be invoked when the terminal is disconnected (or
2477 in other similar situations), functions placed on this hook should not
2478 expect to be able to interact with the user. To ask for confirmation,
2479 see `kill-emacs-query-functions' instead.
2481 Before Emacs 24.1, the hook was not run in batch mode, i.e., if
2482 `noninteractive' was non-nil. */);
2483 Vkill_emacs_hook
= Qnil
;
2485 DEFVAR_LISP ("path-separator", Vpath_separator
,
2486 doc
: /* String containing the character that separates directories in
2487 search paths, such as PATH and other similar environment variables. */);
2490 Vpath_separator
= make_string (&c
, 1);
2493 DEFVAR_LISP ("invocation-name", Vinvocation_name
,
2494 doc
: /* The program name that was used to run Emacs.
2495 Any directory names are omitted. */);
2497 DEFVAR_LISP ("invocation-directory", Vinvocation_directory
,
2498 doc
: /* The directory in which the Emacs executable was found, to run it.
2499 The value is nil if that directory's name is not known. */);
2501 DEFVAR_LISP ("installation-directory", Vinstallation_directory
,
2502 doc
: /* A directory within which to look for the `lib-src' and `etc' directories.
2503 In an installed Emacs, this is normally nil. It is non-nil if
2504 both `lib-src' (on MS-DOS, `info') and `etc' directories are found
2505 within the variable `invocation-directory' or its parent. For example,
2506 this is the case when running an uninstalled Emacs executable from its
2507 build directory. */);
2508 Vinstallation_directory
= Qnil
;
2510 DEFVAR_LISP ("system-messages-locale", Vsystem_messages_locale
,
2511 doc
: /* System locale for messages. */);
2512 Vsystem_messages_locale
= Qnil
;
2514 DEFVAR_LISP ("previous-system-messages-locale",
2515 Vprevious_system_messages_locale
,
2516 doc
: /* Most recently used system locale for messages. */);
2517 Vprevious_system_messages_locale
= Qnil
;
2519 DEFVAR_LISP ("system-time-locale", Vsystem_time_locale
,
2520 doc
: /* System locale for time. */);
2521 Vsystem_time_locale
= Qnil
;
2523 DEFVAR_LISP ("previous-system-time-locale", Vprevious_system_time_locale
,
2524 doc
: /* Most recently used system locale for time. */);
2525 Vprevious_system_time_locale
= Qnil
;
2527 DEFVAR_LISP ("before-init-time", Vbefore_init_time
,
2528 doc
: /* Value of `current-time' before Emacs begins initialization. */);
2529 Vbefore_init_time
= Qnil
;
2531 DEFVAR_LISP ("after-init-time", Vafter_init_time
,
2532 doc
: /* Value of `current-time' after loading the init files.
2533 This is nil during initialization. */);
2534 Vafter_init_time
= Qnil
;
2536 DEFVAR_BOOL ("inhibit-x-resources", inhibit_x_resources
,
2537 doc
: /* If non-nil, X resources, Windows Registry settings, and NS defaults are not used. */);
2538 inhibit_x_resources
= 0;
2540 DEFVAR_LISP ("emacs-copyright", Vemacs_copyright
,
2541 doc
: /* Short copyright string for this version of Emacs. */);
2542 Vemacs_copyright
= build_string (emacs_copyright
);
2544 DEFVAR_LISP ("emacs-version", Vemacs_version
,
2545 doc
: /* Version numbers of this version of Emacs. */);
2546 Vemacs_version
= build_string (emacs_version
);
2548 DEFVAR_LISP ("report-emacs-bug-address", Vreport_emacs_bug_address
,
2549 doc
: /* Address of mailing list for GNU Emacs bugs. */);
2550 Vreport_emacs_bug_address
= build_string (emacs_bugreport
);
2552 DEFVAR_LISP ("dynamic-library-alist", Vdynamic_library_alist
,
2553 doc
: /* Alist of dynamic libraries vs external files implementing them.
2554 Each element is a list (LIBRARY FILE...), where the car is a symbol
2555 representing a supported external library, and the rest are strings giving
2556 alternate filenames for that library.
2558 Emacs tries to load the library from the files in the order they appear on
2559 the list; if none is loaded, the running session of Emacs won't have access
2562 Note that image types `pbm' and `xbm' do not need entries in this variable
2563 because they do not depend on external libraries and are always available.
2565 Also note that this is not a generic facility for accessing external
2566 libraries; only those already known by Emacs will be loaded. */);
2567 Vdynamic_library_alist
= Qnil
;
2568 Fput (intern_c_string ("dynamic-library-alist"), Qrisky_local_variable
, Qt
);
2571 Vlibrary_cache
= Qnil
;
2572 staticpro (&Vlibrary_cache
);