1 /* Fully extensible Emacs, running on Unix, intended for GNU.
3 Copyright (C) 1985-1987, 1993-1995, 1997-1999, 2001-2016 Free Software
6 This file is part of GNU Emacs.
8 GNU Emacs is free software: you can redistribute it and/or modify
9 it under the terms of the GNU General Public License as published by
10 the Free Software Foundation, either version 3 of the License, or
11 (at your option) any later version.
13 GNU Emacs is distributed in the hope that it will be useful,
14 but WITHOUT ANY WARRANTY; without even the implied warranty of
15 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
16 GNU General Public License for more details.
18 You should have received a copy of the GNU General Public License
19 along with GNU Emacs. If not, see <http://www.gnu.org/licenses/>. */
21 #define INLINE EXTERN_INLINE
28 #include <sys/types.h>
32 #include <close-stream.h>
39 #include <sys/socket.h>
45 #if defined WINDOWSNT || defined HAVE_NTGUI
46 #include "w32select.h"
48 #include "w32common.h"
56 #include <binary-io.h>
59 #ifdef HAVE_WINDOW_SYSTEM
61 #endif /* HAVE_WINDOW_SYSTEM */
64 #include "intervals.h"
65 #include "character.h"
73 #include "blockinput.h"
74 #include "syssignal.h"
77 #include "termhooks.h"
82 #include "composite.h"
83 #include "dispextern.h"
86 #include "sysselect.h"
92 #if (defined PROFILING \
93 && (defined __FreeBSD__ || defined GNU_LINUX || defined __MINGW32__))
94 # include <sys/gmon.h>
95 extern void moncontrol (int mode
);
106 #ifdef HAVE_SETRLIMIT
107 #include <sys/time.h>
108 #include <sys/resource.h>
111 #ifdef HAVE_PERSONALITY_LINUX32
112 #include <sys/personality.h>
115 static const char emacs_version
[] = PACKAGE_VERSION
;
116 static const char emacs_copyright
[] = COPYRIGHT
;
117 static const char emacs_bugreport
[] = PACKAGE_BUGREPORT
;
119 /* Empty lisp strings. To avoid having to build any others. */
120 Lisp_Object empty_unibyte_string
, empty_multibyte_string
;
123 /* Cache for externally loaded libraries. */
124 Lisp_Object Vlibrary_cache
;
127 /* Set after Emacs has started up the first time.
128 Prevents reinitialization of the Lisp world and keymaps
129 on subsequent starts. */
132 /* Set to true if this instance of Emacs might dump. */
136 extern void unexec_init_emacs_zone (void);
139 #ifdef DOUG_LEA_MALLOC
140 /* Preserves a pointer to the memory allocated that copies that
141 static data inside glibc's malloc. */
142 static void *malloc_state_ptr
;
143 /* From glibc, a routine that returns a copy of the malloc internal state. */
144 extern void *malloc_get_state (void);
145 /* From glibc, a routine that overwrites the malloc internal state. */
146 extern int malloc_set_state (void *);
147 /* True if the MALLOC_CHECK_ environment variable was set while
148 dumping. Used to work around a bug in glibc's malloc. */
149 static bool malloc_using_checking
;
150 #elif defined HAVE_PTHREAD && !defined SYSTEM_MALLOC && !defined HYBRID_MALLOC
151 extern void malloc_enable_thread (void);
154 /* If true, Emacs should not attempt to use a window-specific code,
155 but instead should use the virtual terminal under which it was started. */
156 bool inhibit_window_system
;
158 /* If true, a filter or a sentinel is running. Tested to save the match
159 data on the first attempt to change it inside asynchronous code. */
160 bool running_asynch_code
;
162 #if defined (HAVE_X_WINDOWS) || defined (HAVE_NS)
163 /* If true, -d was specified, meaning we're using some window system. */
167 /* An address near the bottom of the stack.
168 Tells GC how to save a copy of the stack. */
171 #if defined (DOUG_LEA_MALLOC) || defined (GNU_LINUX)
172 /* The address where the heap starts (from the first sbrk (0) call). */
173 static void *my_heap_start
;
177 /* The gap between BSS end and heap start as far as we can tell. */
178 static uprintmax_t heap_bss_diff
;
181 /* To run as a daemon under Cocoa or Windows, we must do a fork+exec,
184 On Cocoa, CoreFoundation lib fails in forked process:
185 http://developer.apple.com/ReleaseNotes/
186 CoreFoundation/CoreFoundation.html)
188 On Windows, a Cygwin fork child cannot access the USER subsystem.
190 We mark being in the exec'd process by a daemon name argument of
191 form "--daemon=\nFD0,FD1\nNAME" where FD are the pipe file descriptors,
192 NAME is the original daemon name, if any. */
193 #if defined NS_IMPL_COCOA || (defined HAVE_NTGUI && defined CYGWIN)
194 # define DAEMON_MUST_EXEC
197 /* True means running Emacs without interactive terminal. */
200 /* True means remove site-lisp directories from load-path. */
203 /* Name for the server started by the daemon.*/
204 static char *daemon_name
;
207 /* Pipe used to send exit notification to the daemon parent at
211 HANDLE w32_daemon_event
;
214 /* Save argv and argc. */
218 static void sort_args (int argc
, char **argv
);
219 static void syms_of_emacs (void);
221 /* C99 needs each string to be at most 4095 characters, and the usage
222 strings below are split to not overflow this limit. */
223 static char const *const usage_message
[] =
226 Run Emacs, the extensible, customizable, self-documenting real-time\n\
227 display editor. The recommended way to start Emacs for normal editing\n\
228 is with no options at all.\n\
230 Run M-x info RET m emacs RET m emacs invocation RET inside Emacs to\n\
231 read the main documentation for these command-line arguments.\n\
233 Initialization options:\n\
237 --batch do not do interactive display; implies -q\n\
238 --chdir DIR change to directory DIR\n\
239 --daemon start a server in the background\n\
240 --debug-init enable Emacs Lisp debugger for init file\n\
241 --display, -d DISPLAY use X server DISPLAY\n\
244 --no-desktop do not load a saved desktop\n\
245 --no-init-file, -q load neither ~/.emacs nor default.el\n\
246 --no-loadup, -nl do not load loadup.el into bare Emacs\n\
247 --no-site-file do not load site-start.el\n\
248 --no-x-resources do not load X resources\n\
249 --no-site-lisp, -nsl do not add site-lisp directories to load-path\n\
250 --no-splash do not display a splash screen on startup\n\
251 --no-window-system, -nw do not communicate with X, ignoring $DISPLAY\n\
254 --quick, -Q equivalent to:\n\
255 -q --no-site-file --no-site-lisp --no-splash\n\
257 --script FILE run FILE as an Emacs Lisp script\n\
258 --terminal, -t DEVICE use DEVICE for terminal I/O\n\
259 --user, -u USER load ~USER/.emacs instead of your own\n\
265 FILE visit FILE using find-file\n\
266 +LINE go to line LINE in next FILE\n\
267 +LINE:COLUMN go to line LINE, column COLUMN, in next FILE\n\
268 --directory, -L DIR prepend DIR to load-path (with :DIR, append DIR)\n\
269 --eval EXPR evaluate Emacs Lisp expression EXPR\n\
270 --execute EXPR evaluate Emacs Lisp expression EXPR\n\
273 --file FILE visit FILE using find-file\n\
274 --find-file FILE visit FILE using find-file\n\
275 --funcall, -f FUNC call Emacs Lisp function FUNC with no arguments\n\
276 --insert FILE insert contents of FILE into current buffer\n\
277 --kill exit without asking for confirmation\n\
278 --load, -l FILE load Emacs Lisp FILE using the load function\n\
279 --visit FILE visit FILE using find-file\n\
285 --background-color, -bg COLOR window background color\n\
286 --basic-display, -D disable many display features;\n\
287 used for debugging Emacs\n\
288 --border-color, -bd COLOR main border color\n\
289 --border-width, -bw WIDTH width of main border\n\
292 --color, --color=MODE override color mode for character terminals;\n\
293 MODE defaults to `auto', and\n\
294 can also be `never', `always',\n\
295 or a mode name like `ansi8'\n\
296 --cursor-color, -cr COLOR color of the Emacs cursor indicating point\n\
297 --font, -fn FONT default font; must be fixed-width\n\
298 --foreground-color, -fg COLOR window foreground color\n\
301 --fullheight, -fh make the first frame high as the screen\n\
302 --fullscreen, -fs make the first frame fullscreen\n\
303 --fullwidth, -fw make the first frame wide as the screen\n\
304 --maximized, -mm make the first frame maximized\n\
305 --geometry, -g GEOMETRY window geometry\n\
308 --no-bitmap-icon, -nbi do not use picture of gnu for Emacs icon\n\
309 --iconic start Emacs in iconified state\n\
310 --internal-border, -ib WIDTH width between text and main border\n\
311 --line-spacing, -lsp PIXELS additional space to put between lines\n\
312 --mouse-color, -ms COLOR mouse cursor color in Emacs window\n\
313 --name NAME title for initial Emacs frame\n\
316 --no-blinking-cursor, -nbc disable blinking cursor\n\
317 --reverse-video, -r, -rv switch foreground and background\n\
318 --title, -T TITLE title for initial Emacs frame\n\
319 --vertical-scroll-bars, -vb enable vertical scroll bars\n\
320 --xrm XRESOURCES set additional X resources\n\
321 --parent-id XID set parent window\n\
322 --help display this help and exit\n\
323 --version output version information and exit\n\
327 You can generally also specify long option names with a single -; for\n\
328 example, -batch as well as --batch. You can use any unambiguous\n\
329 abbreviation for a --option.\n\
331 Various environment variables and window system resources also affect\n\
332 the operation of Emacs. See the main documentation.\n\
334 Report bugs to " PACKAGE_BUGREPORT
". First, please see the Bugs\n\
335 section of the Emacs manual or the file BUGS.\n"
339 /* True if handling a fatal error already. */
340 bool fatal_error_in_progress
;
343 /* NS autrelease pool, for memory management. */
344 static void *ns_pool
;
349 setlocale (int cat
, char const *locale
)
355 /* True if the current system locale uses UTF-8 encoding. */
361 mbstate_t mbs
= { 0 };
362 return mbrtowc (&wc
, "\xc4\x80", 2, &mbs
) == 2 && wc
== 0x100;
369 /* Report a fatal error due to signal SIG, output a backtrace of at
370 most BACKTRACE_LIMIT lines, and exit. */
372 terminate_due_to_signal (int sig
, int backtrace_limit
)
374 signal (sig
, SIG_DFL
);
376 if (attempt_orderly_shutdown_on_fatal_signal
)
378 /* If fatal error occurs in code below, avoid infinite recursion. */
379 if (! fatal_error_in_progress
)
381 fatal_error_in_progress
= 1;
383 totally_unblock_input ();
384 if (sig
== SIGTERM
|| sig
== SIGHUP
|| sig
== SIGINT
)
385 Fkill_emacs (make_number (sig
));
387 shut_down_emacs (sig
, Qnil
);
388 emacs_backtrace (backtrace_limit
);
392 /* Signal the same code; this time it will really be fatal.
393 Since we're in a signal handler, the signal is blocked, so we
394 have to unblock it if we want to really receive it. */
398 sigemptyset (&unblocked
);
399 sigaddset (&unblocked
, sig
);
400 pthread_sigmask (SIG_UNBLOCK
, &unblocked
, 0);
406 /* This shouldn't be executed, but it prevents a warning. */
410 /* Code for dealing with Lisp access to the Unix command line. */
413 init_cmdargs (int argc
, char **argv
, int skip_args
, char *original_pwd
)
416 Lisp_Object name
, dir
, handler
;
417 ptrdiff_t count
= SPECPDL_INDEX ();
418 Lisp_Object raw_name
;
419 AUTO_STRING (slash_colon
, "/:");
425 /* Must use argv[0] converted to UTF-8, as it begets many standard
426 file and directory names. */
428 char argv0
[MAX_UTF8_PATH
];
430 if (filename_from_ansi (argv
[0], argv0
) == 0)
431 raw_name
= build_unibyte_string (argv0
);
433 raw_name
= build_unibyte_string (argv
[0]);
436 raw_name
= build_unibyte_string (argv
[0]);
439 /* Add /: to the front of the name
440 if it would otherwise be treated as magic. */
441 handler
= Ffind_file_name_handler (raw_name
, Qt
);
442 if (! NILP (handler
))
443 raw_name
= concat2 (slash_colon
, raw_name
);
445 Vinvocation_name
= Ffile_name_nondirectory (raw_name
);
446 Vinvocation_directory
= Ffile_name_directory (raw_name
);
448 /* If we got no directory in argv[0], search PATH to find where
449 Emacs actually came from. */
450 if (NILP (Vinvocation_directory
))
453 int yes
= openp (Vexec_path
, Vinvocation_name
,
454 Vexec_suffixes
, &found
, make_number (X_OK
), false);
457 /* Add /: to the front of the name
458 if it would otherwise be treated as magic. */
459 handler
= Ffind_file_name_handler (found
, Qt
);
460 if (! NILP (handler
))
461 found
= concat2 (slash_colon
, found
);
462 Vinvocation_directory
= Ffile_name_directory (found
);
466 if (!NILP (Vinvocation_directory
)
467 && NILP (Ffile_name_absolute_p (Vinvocation_directory
)))
468 /* Emacs was started with relative path, like ./emacs.
472 original_pwd
? build_unibyte_string (original_pwd
) : Qnil
;
474 Vinvocation_directory
= Fexpand_file_name (Vinvocation_directory
, odir
);
477 Vinstallation_directory
= Qnil
;
479 if (!NILP (Vinvocation_directory
))
481 dir
= Vinvocation_directory
;
483 /* If we are running from the build directory, set DIR to the
484 src subdirectory of the Emacs tree, like on Posix
486 if (SBYTES (dir
) > sizeof ("/i386/") - 1
487 && 0 == strcmp (SSDATA (dir
) + SBYTES (dir
) - sizeof ("/i386/") + 1,
489 dir
= Fexpand_file_name (build_string ("../.."), dir
);
490 #else /* !WINDOWSNT */
492 name
= Fexpand_file_name (Vinvocation_name
, dir
);
495 Lisp_Object tem
, lib_src_exists
;
496 Lisp_Object etc_exists
, info_exists
;
498 /* See if dir contains subdirs for use by Emacs.
499 Check for the ones that would exist in a build directory,
500 not including lisp and info. */
501 tem
= Fexpand_file_name (build_string ("lib-src"), dir
);
502 lib_src_exists
= Ffile_exists_p (tem
);
505 /* MSDOS installations frequently remove lib-src, but we still
506 must set installation-directory, or else info won't find
507 its files (it uses the value of installation-directory). */
508 tem
= Fexpand_file_name (build_string ("info"), dir
);
509 info_exists
= Ffile_exists_p (tem
);
514 if (!NILP (lib_src_exists
) || !NILP (info_exists
))
516 tem
= Fexpand_file_name (build_string ("etc"), dir
);
517 etc_exists
= Ffile_exists_p (tem
);
518 if (!NILP (etc_exists
))
520 Vinstallation_directory
521 = Ffile_name_as_directory (dir
);
526 /* See if dir's parent contains those subdirs. */
527 tem
= Fexpand_file_name (build_string ("../lib-src"), dir
);
528 lib_src_exists
= Ffile_exists_p (tem
);
532 /* See the MSDOS commentary above. */
533 tem
= Fexpand_file_name (build_string ("../info"), dir
);
534 info_exists
= Ffile_exists_p (tem
);
539 if (!NILP (lib_src_exists
) || !NILP (info_exists
))
541 tem
= Fexpand_file_name (build_string ("../etc"), dir
);
542 etc_exists
= Ffile_exists_p (tem
);
543 if (!NILP (etc_exists
))
545 tem
= Fexpand_file_name (build_string (".."), dir
);
546 Vinstallation_directory
547 = Ffile_name_as_directory (tem
);
552 /* If the Emacs executable is actually a link,
553 next try the dir that the link points into. */
554 tem
= Ffile_symlink_p (name
);
557 name
= Fexpand_file_name (tem
, dir
);
558 dir
= Ffile_name_directory (name
);
565 Vcommand_line_args
= Qnil
;
567 for (i
= argc
- 1; i
>= 0; i
--)
569 if (i
== 0 || i
> skip_args
)
570 /* For the moment, we keep arguments as is in unibyte strings.
571 They are decoded in the function command-line after we know
572 locale-coding-system. */
574 = Fcons (build_unibyte_string (argv
[i
]), Vcommand_line_args
);
577 unbind_to (count
, Qnil
);
580 DEFUN ("invocation-name", Finvocation_name
, Sinvocation_name
, 0, 0, 0,
581 doc
: /* Return the program name that was used to run Emacs.
582 Any directory names are omitted. */)
585 return Fcopy_sequence (Vinvocation_name
);
588 DEFUN ("invocation-directory", Finvocation_directory
, Sinvocation_directory
,
590 doc
: /* Return the directory name in which the Emacs executable was located. */)
593 return Fcopy_sequence (Vinvocation_directory
);
597 /* Test whether the next argument in ARGV matches SSTR or a prefix of
598 LSTR (at least MINLEN characters). If so, then if VALPTR is non-null
599 (the argument is supposed to have a value) store in *VALPTR either
600 the next argument or the portion of this one after the equal sign.
601 ARGV is read starting at position *SKIPPTR; this index is advanced
602 by the number of arguments used.
604 Too bad we can't just use getopt for all of this, but we don't have
605 enough information to do it right. */
608 argmatch (char **argv
, int argc
, const char *sstr
, const char *lstr
,
609 int minlen
, char **valptr
, int *skipptr
)
615 /* Don't access argv[argc]; give up in advance. */
616 if (argc
<= *skipptr
+ 1)
619 arg
= argv
[*skipptr
+1];
622 if (strcmp (arg
, sstr
) == 0)
626 *valptr
= argv
[*skipptr
+2];
633 arglen
= (valptr
!= NULL
&& (p
= strchr (arg
, '=')) != NULL
634 ? p
- arg
: strlen (arg
));
635 if (lstr
== 0 || arglen
< minlen
|| strncmp (arg
, lstr
, arglen
) != 0)
637 else if (valptr
== NULL
)
648 else if (argv
[*skipptr
+2] != NULL
)
650 *valptr
= argv
[*skipptr
+2];
660 #ifdef DOUG_LEA_MALLOC
662 /* malloc can be invoked even before main (e.g. by the dynamic
663 linker), so the dumped malloc state must be restored as early as
664 possible using this special hook. */
667 malloc_initialize_hook (void)
671 if (!malloc_using_checking
)
672 /* Work around a bug in glibc's malloc. MALLOC_CHECK_ must be
673 ignored if the heap to be restored was constructed without
674 malloc checking. Can't use unsetenv, since that calls malloc. */
678 for (p
= environ
; p
&& *p
; p
++)
679 if (strncmp (*p
, "MALLOC_CHECK_=", 14) == 0)
688 malloc_set_state (malloc_state_ptr
);
689 #ifndef XMALLOC_OVERRUN_CHECK
690 free (malloc_state_ptr
);
695 if (my_heap_start
== 0)
696 my_heap_start
= sbrk (0);
697 malloc_using_checking
= getenv ("MALLOC_CHECK_") != NULL
;
701 void (*__malloc_initialize_hook
) (void) EXTERNALLY_VISIBLE
= malloc_initialize_hook
;
703 #endif /* DOUG_LEA_MALLOC */
705 /* Close standard output and standard error, reporting any write
706 errors as best we can. This is intended for use with atexit. */
708 close_output_streams (void)
710 if (close_stream (stdout
) != 0)
712 emacs_perror ("Write error to standard output");
713 _exit (EXIT_FAILURE
);
716 if (close_stream (stderr
) != 0)
717 _exit (EXIT_FAILURE
);
722 main (int argc
, char **argv
)
725 char stack_bottom_variable
;
726 bool do_initial_setlocale
;
729 #ifdef HAVE_SETRLIMIT
735 #ifdef DAEMON_MUST_EXEC
740 /* If we use --chdir, this records the original directory. */
741 char *original_pwd
= 0;
746 might_dump
= !initialized
;
752 if (my_heap_start
== 0)
753 my_heap_start
= sbrk (0);
755 heap_bss_diff
= (char *)my_heap_start
- max (my_endbss
, my_endbss_static
);
759 #if defined WINDOWSNT || defined HAVE_NTGUI
760 /* Set global variables used to detect Windows version. Do this as
761 early as possible. (unexw32.c calls this function as well, but
762 the additional call here is harmless.) */
763 cache_system_info ();
765 /* On Windows 9X, we have to load UNICOWS.DLL as early as possible,
766 to have non-stub implementations of APIs we need to convert file
767 names between UTF-8 and the system's ANSI codepage. */
768 maybe_load_unicows_dll ();
770 /* This has to be done before module_init is called below, so that
771 the latter could use the thread ID of the main thread. */
772 w32_init_main_thread ();
775 #ifdef RUN_TIME_REMAP
777 run_time_remap (argv
[0]);
780 /* If using unexmacosx.c (set by s/darwin.h), we must do this. */
783 unexec_init_emacs_zone ();
786 atexit (close_output_streams
);
792 sort_args (argc
, argv
);
794 while (argv
[argc
]) argc
++;
796 if (argmatch (argv
, argc
, "-version", "--version", 3, NULL
, &skip_args
))
798 const char *version
, *copyright
;
801 Lisp_Object tem
, tem2
;
802 tem
= Fsymbol_value (intern_c_string ("emacs-version"));
803 tem2
= Fsymbol_value (intern_c_string ("emacs-copyright"));
806 fprintf (stderr
, "Invalid value of 'emacs-version'\n");
811 fprintf (stderr
, "Invalid value of 'emacs-copyright'\n");
816 version
= SSDATA (tem
);
817 copyright
= SSDATA (tem2
);
822 version
= emacs_version
;
823 copyright
= emacs_copyright
;
825 printf ("%s %s\n", PACKAGE_NAME
, version
);
826 printf ("%s\n", copyright
);
827 printf ("%s comes with ABSOLUTELY NO WARRANTY.\n", PACKAGE_NAME
);
828 printf ("You may redistribute copies of %s\n", PACKAGE_NAME
);
829 printf ("under the terms of the GNU General Public License.\n");
830 printf ("For more information about these matters, ");
831 printf ("see the file named COPYING.\n");
835 if (argmatch (argv
, argc
, "-chdir", "--chdir", 4, &ch_to_dir
, &skip_args
))
838 /* argv[] array is kept in its original ANSI codepage encoding,
839 we need to convert to UTF-8, for chdir to work. */
840 char newdir
[MAX_UTF8_PATH
];
842 filename_from_ansi (ch_to_dir
, newdir
);
845 original_pwd
= get_current_dir_name ();
846 if (chdir (ch_to_dir
) != 0)
848 fprintf (stderr
, "%s: Can't chdir to %s: %s\n",
849 argv
[0], ch_to_dir
, strerror (errno
));
854 dumping
= !initialized
&& (strcmp (argv
[argc
- 1], "dump") == 0
855 || strcmp (argv
[argc
- 1], "bootstrap") == 0);
857 #ifdef HAVE_PERSONALITY_LINUX32
858 if (dumping
&& ! getenv ("EMACS_HEAP_EXEC"))
860 /* Set this so we only do this once. */
861 xputenv ("EMACS_HEAP_EXEC=true");
863 /* A flag to turn off address randomization which is introduced
864 in linux kernel shipped with fedora core 4 */
865 #define ADD_NO_RANDOMIZE 0x0040000
866 personality (PER_LINUX32
| ADD_NO_RANDOMIZE
);
867 #undef ADD_NO_RANDOMIZE
869 execvp (argv
[0], argv
);
871 /* If the exec fails, try to dump anyway. */
872 emacs_perror (argv
[0]);
874 #endif /* HAVE_PERSONALITY_LINUX32 */
876 #if defined (HAVE_SETRLIMIT) && defined (RLIMIT_STACK) && !defined (CYGWIN)
877 /* Extend the stack space available. Don't do that if dumping,
878 since some systems (e.g. DJGPP) might define a smaller stack
879 limit at that time. And it's not needed on Cygwin, since emacs
880 is built with an 8MB stack. Moreover, the setrlimit call can
881 cause problems on Cygwin
882 (https://www.cygwin.com/ml/cygwin/2015-07/msg00096.html). */
885 && (!noninteractive
|| initialized
)
887 && !getrlimit (RLIMIT_STACK
, &rlim
))
890 /* Approximate the amount regex.c needs per unit of re_max_failures. */
891 int ratio
= 20 * sizeof (char *);
892 /* Then add 33% to cover the size of the smaller stacks that regex.c
893 successively allocates and discards, on its way to the maximum. */
895 /* Add in some extra to cover
896 what we're likely to use for other reasons. */
897 newlim
= re_max_failures
* ratio
+ 200000;
899 /* NetBSD (at least NetBSD 1.2G and former) has a bug in its
900 stack allocation routine for new process that the allocation
901 fails if stack limit is not on page boundary. So, round up the
902 new limit to page boundary. */
903 newlim
= (newlim
+ getpagesize () - 1) / getpagesize () * getpagesize ();
905 if (newlim
> rlim
.rlim_max
)
907 newlim
= rlim
.rlim_max
;
908 /* Don't let regex.c overflow the stack we have. */
909 re_max_failures
= (newlim
- 200000) / ratio
;
911 if (rlim
.rlim_cur
< newlim
)
912 rlim
.rlim_cur
= newlim
;
914 setrlimit (RLIMIT_STACK
, &rlim
);
916 #endif /* HAVE_SETRLIMIT and RLIMIT_STACK and not CYGWIN */
918 /* Record (approximately) where the stack begins. */
919 stack_bottom
= &stack_bottom_variable
;
923 emacs_backtrace (-1);
925 #if !defined SYSTEM_MALLOC && !defined HYBRID_MALLOC
926 /* Arrange to get warning messages as memory fills up. */
927 memory_warnings (0, malloc_warning
);
929 /* Call malloc at least once, to run malloc_initialize_hook.
930 Also call realloc and free for consistency. */
931 free (realloc (malloc (4), 4));
933 #endif /* not SYSTEM_MALLOC and not HYBRID_MALLOC */
936 SET_BINARY (fileno (stdin
));
938 SET_BINARY (fileno (stdout
));
941 /* Skip initial setlocale if LC_ALL is "C", as it's not needed in that case.
942 The build procedure uses this while dumping, to ensure that the
943 dumped Emacs does not have its system locale tables initialized,
944 as that might cause screwups when the dumped Emacs starts up. */
946 char *lc_all
= getenv ("LC_ALL");
947 do_initial_setlocale
= ! lc_all
|| strcmp (lc_all
, "C");
950 /* Set locale now, so that initial error messages are localized properly.
951 fixup_locale must wait until later, since it builds strings. */
952 if (do_initial_setlocale
)
953 setlocale (LC_ALL
, "");
954 text_quoting_flag
= using_utf8 ();
956 inhibit_window_system
= 0;
958 /* Handle the -t switch, which specifies filename to use as terminal. */
962 if (argmatch (argv
, argc
, "-t", "--terminal", 4, &term
, &skip_args
))
967 result
= emacs_open (term
, O_RDWR
, 0);
968 if (result
< 0 || fcntl (0, F_DUPFD_CLOEXEC
, 1) < 0)
970 char *errstring
= strerror (errno
);
971 fprintf (stderr
, "%s: %s: %s\n", argv
[0], term
, errstring
);
976 fprintf (stderr
, "%s: %s: not a tty\n", argv
[0], term
);
979 fprintf (stderr
, "Using %s\n", term
);
980 #ifdef HAVE_WINDOW_SYSTEM
981 inhibit_window_system
= 1; /* -t => -nw */
988 /* Command line option --no-windows is deprecated and thus not mentioned
989 in the manual and usage information. */
990 if (argmatch (argv
, argc
, "-nw", "--no-window-system", 6, NULL
, &skip_args
)
991 || argmatch (argv
, argc
, "-nw", "--no-windows", 6, NULL
, &skip_args
))
992 inhibit_window_system
= 1;
994 /* Handle the -batch switch, which means don't do interactive display. */
996 if (argmatch (argv
, argc
, "-batch", "--batch", 5, NULL
, &skip_args
))
999 Vundo_outer_limit
= Qnil
;
1001 if (argmatch (argv
, argc
, "-script", "--script", 3, &junk
, &skip_args
))
1003 noninteractive
= 1; /* Set batch mode. */
1004 /* Convert --script to -scriptload, un-skip it, and sort again
1005 so that it will be handled in proper sequence. */
1006 /* FIXME broken for --script=FILE - is that supposed to work? */
1007 argv
[skip_args
- 1] = (char *) "-scriptload";
1009 sort_args (argc
, argv
);
1012 /* Handle the --help option, which gives a usage message. */
1013 if (argmatch (argv
, argc
, "-help", "--help", 3, NULL
, &skip_args
))
1016 printf ("Usage: %s [OPTION-OR-FILENAME]...\n", argv
[0]);
1017 for (i
= 0; i
< ARRAYELTS (usage_message
); i
++)
1018 fputs (usage_message
[i
], stdout
);
1023 /* Make sure IS_DAEMON starts up as false. */
1026 w32_daemon_event
= NULL
;
1029 if (argmatch (argv
, argc
, "-daemon", "--daemon", 5, NULL
, &skip_args
)
1030 || argmatch (argv
, argc
, "-daemon", "--daemon", 5, &dname_arg
, &skip_args
))
1035 /* Start as a daemon: fork a new child process which will run the
1036 rest of the initialization code, then exit.
1038 Detaching a daemon requires the following steps:
1042 - close the tty file-descriptors
1044 We only want to do the last 2 steps once the daemon is ready to
1045 serve requests, i.e. after loading .emacs (initialization).
1046 OTOH initialization may start subprocesses (e.g. ispell) and these
1047 should be run from the proper process (the one that will end up
1048 running as daemon) and with the proper "session id" in order for
1049 them to keep working after detaching, so fork and setsid need to be
1050 performed before initialization.
1052 We want to avoid exiting before the server socket is ready, so
1053 use a pipe for synchronization. The parent waits for the child
1054 to close its end of the pipe (using `daemon-initialized')
1056 if (emacs_pipe (daemon_pipe
) != 0)
1058 fprintf (stderr
, "Cannot pipe!\n");
1062 #ifndef DAEMON_MUST_EXEC
1064 fprintf (stderr
, "\nWarning: due to a long standing Gtk+ bug\nhttp://bugzilla.gnome.org/show_bug.cgi?id=85715\n\
1065 Emacs might crash when run in daemon mode and the X11 connection is unexpectedly lost.\n\
1066 Using an Emacs configured with --with-x-toolkit=lucid does not have this problem.\n");
1067 #endif /* USE_GTK */
1069 #else /* DAEMON_MUST_EXEC */
1070 if (!dname_arg
|| !strchr (dname_arg
, '\n'))
1071 f
= fork (); /* in orig */
1073 f
= 0; /* in exec'd */
1074 #endif /* !DAEMON_MUST_EXEC */
1080 /* Close unused writing end of the pipe. */
1081 emacs_close (daemon_pipe
[1]);
1083 /* Just wait for the child to close its end of the pipe. */
1086 retval
= read (daemon_pipe
[0], &buf
, 1);
1088 while (retval
== -1 && errno
== EINTR
);
1092 fprintf (stderr
, "Error reading status from child\n");
1095 else if (retval
== 0)
1097 fprintf (stderr
, "Error: server did not start correctly\n");
1101 emacs_close (daemon_pipe
[0]);
1106 emacs_perror ("fork");
1107 exit (EXIT_CANCELED
);
1110 #ifdef DAEMON_MUST_EXEC
1112 /* In orig process, forked as child, OR in exec'd. */
1113 if (!dname_arg
|| !strchr (dname_arg
, '\n'))
1114 { /* In orig, child: now exec w/special daemon name. */
1117 snprintf (fdStr
, sizeof fdStr
,
1118 "--daemon=\n%d,%d\n%s", daemon_pipe
[0],
1119 daemon_pipe
[1], dname_arg
? dname_arg
: "");
1121 if (! (0 <= fdStrlen
&& fdStrlen
< sizeof fdStr
))
1123 fprintf (stderr
, "daemon: child name too long\n");
1124 exit (EXIT_CANNOT_INVOKE
);
1127 argv
[skip_args
] = fdStr
;
1129 fcntl (daemon_pipe
[0], F_SETFD
, 0);
1130 fcntl (daemon_pipe
[1], F_SETFD
, 0);
1131 execvp (argv
[0], argv
);
1132 emacs_perror (argv
[0]);
1133 exit (errno
== ENOENT
? EXIT_ENOENT
: EXIT_CANNOT_INVOKE
);
1136 /* In exec'd: parse special dname into pipe and name info. */
1137 if (!dname_arg
|| !strchr (dname_arg
, '\n')
1138 || strlen (dname_arg
) < 1 || strlen (dname_arg
) > 70)
1140 fprintf (stderr
, "emacs daemon: daemon name absent or too long\n");
1141 exit (EXIT_CANNOT_INVOKE
);
1143 dname_arg2
[0] = '\0';
1144 sscanf (dname_arg
, "\n%d,%d\n%s", &(daemon_pipe
[0]), &(daemon_pipe
[1]),
1146 dname_arg
= *dname_arg2
? dname_arg2
: NULL
;
1147 fcntl (daemon_pipe
[1], F_SETFD
, FD_CLOEXEC
);
1149 #endif /* DAEMON_MUST_EXEC */
1151 /* Close unused reading end of the pipe. */
1152 emacs_close (daemon_pipe
[0]);
1155 #elif defined(WINDOWSNT)
1156 /* Indicate that we want daemon mode. */
1157 w32_daemon_event
= CreateEvent (NULL
, TRUE
, FALSE
, W32_DAEMON_EVENT
);
1158 if (w32_daemon_event
== NULL
)
1160 fprintf (stderr
, "Couldn't create MS-Windows event for daemon: %s\n",
1165 fprintf (stderr
, "This platform does not support the -daemon flag.\n");
1169 daemon_name
= xstrdup (dname_arg
);
1172 #if defined HAVE_PTHREAD && !defined SYSTEM_MALLOC \
1173 && !defined DOUG_LEA_MALLOC && !defined HYBRID_MALLOC
1174 # ifndef CANNOT_DUMP
1175 /* Do not make gmalloc thread-safe when creating bootstrap-emacs, as
1176 that causes an infinite recursive loop with FreeBSD. See
1177 Bug#14569. The part of this bug involving Cygwin is no longer
1178 relevant, now that Cygwin defines HYBRID_MALLOC. */
1179 if (!noninteractive
|| initialized
)
1181 malloc_enable_thread ();
1184 init_signals (dumping
);
1186 noninteractive1
= noninteractive
;
1188 /* Perform basic initializations (not merely interning symbols). */
1195 init_charset_once ();
1196 init_coding_once ();
1197 init_syntax_once (); /* Create standard syntax table. */
1198 init_category_once (); /* Create standard category table. */
1199 init_casetab_once (); /* Must be done before init_buffer_once. */
1200 init_buffer_once (); /* Create buffer table and some buffers. */
1201 init_minibuf_once (); /* Create list of minibuffers. */
1202 /* Must precede init_window_once. */
1204 /* Call syms_of_xfaces before init_window_once because that
1205 function creates Vterminal_frame. Termcap frames now use
1206 faces, and the face implementation uses some symbols as
1209 /* XXX syms_of_keyboard uses some symbols in keymap.c. It would
1210 be better to arrange things not to have this dependency. */
1212 /* Call syms_of_keyboard before init_window_once because
1213 keyboard sets up symbols that include some face names that
1214 the X support will want to use. This can happen when
1215 CANNOT_DUMP is defined. */
1216 syms_of_keyboard ();
1218 /* Called before syms_of_fileio, because it sets up Qerror_condition. */
1220 syms_of_fns (); /* Before syms_of_charset which uses hashtables. */
1222 /* Before syms_of_coding to initialize Vgc_cons_threshold. */
1224 /* May call Ffuncall and so GC, thus the latter should be initialized. */
1226 /* Before syms_of_coding because it initializes Qcharsetp. */
1228 /* Before init_window_once, because it sets up the
1229 Vcoding_system_hash_table. */
1230 syms_of_coding (); /* This should be after syms_of_fileio. */
1232 init_window_once (); /* Init the window system. */
1233 #ifdef HAVE_WINDOW_SYSTEM
1234 init_fringe_once (); /* Swap bitmaps if necessary. */
1235 #endif /* HAVE_WINDOW_SYSTEM */
1240 if (do_initial_setlocale
)
1243 Vsystem_messages_locale
= Vprevious_system_messages_locale
;
1244 Vsystem_time_locale
= Vprevious_system_time_locale
;
1249 running_asynch_code
= 0;
1253 = argmatch (argv
, argc
, "-nl", "--no-loadup", 6, NULL
, &skip_args
);
1256 = argmatch (argv
, argc
, "-nsl", "--no-site-lisp", 11, NULL
, &skip_args
);
1259 ns_pool
= ns_alloc_autorelease_pool ();
1260 #ifdef NS_IMPL_GNUSTEP
1261 /* GNUstep stupidly resets our locale settings after we made them. */
1265 if (!noninteractive
)
1267 #ifdef NS_IMPL_COCOA
1268 /* Started from GUI? */
1269 /* FIXME: Do the right thing if getenv returns NULL, or if
1271 if (! inhibit_window_system
&& ! isatty (0) && ! ch_to_dir
)
1272 chdir (getenv ("HOME"));
1273 if (skip_args
< argc
)
1275 if (!strncmp (argv
[skip_args
], "-psn", 4))
1278 if (! ch_to_dir
) chdir (getenv ("HOME"));
1280 else if (skip_args
+1 < argc
&& !strncmp (argv
[skip_args
+1], "-psn", 4))
1283 if (! ch_to_dir
) chdir (getenv ("HOME"));
1288 #endif /* HAVE_NS */
1290 #ifdef HAVE_X_WINDOWS
1291 /* Stupid kludge to catch command-line display spec. We can't
1292 handle this argument entirely in window system dependent code
1293 because we don't even know which window system dependent code
1294 to run until we've recognized this argument. */
1296 char *displayname
= 0;
1297 int count_before
= skip_args
;
1299 /* Skip any number of -d options, but only use the last one. */
1302 int count_before_this
= skip_args
;
1304 if (argmatch (argv
, argc
, "-d", "--display", 3, &displayname
, &skip_args
))
1306 else if (argmatch (argv
, argc
, "-display", 0, 3, &displayname
, &skip_args
))
1311 count_before
= count_before_this
;
1314 /* If we have the form --display=NAME,
1315 convert it into -d name.
1316 This requires inserting a new element into argv. */
1317 if (displayname
&& count_before
< skip_args
)
1319 if (skip_args
== count_before
+ 1)
1321 memmove (argv
+ count_before
+ 3, argv
+ count_before
+ 2,
1322 (argc
- (count_before
+ 2)) * sizeof *argv
);
1323 argv
[count_before
+ 2] = displayname
;
1326 argv
[count_before
+ 1] = (char *) "-d";
1331 if (argmatch (argv
, argc
, "-Q", "--quick", 3, NULL
, &skip_args
)
1332 || argmatch (argv
, argc
, "-quick", 0, 2, NULL
, &skip_args
))
1336 /* Don't actually discard this arg. */
1337 skip_args
= count_before
;
1339 #else /* !HAVE_X_WINDOWS */
1342 int count_before
= skip_args
;
1344 if (argmatch (argv
, argc
, "-Q", "--quick", 3, NULL
, &skip_args
)
1345 || argmatch (argv
, argc
, "-quick", 0, 2, NULL
, &skip_args
))
1348 skip_args
= count_before
;
1352 /* argmatch must not be used after here,
1353 except when building temacs
1354 because the -d argument has not been skipped in skip_args. */
1357 /* Call early 'cause init_environment needs it. */
1359 /* Set defaults for several environment variables. */
1361 init_environment (argc
, argv
, skip_args
);
1367 globals_of_kqueue ();
1370 #ifdef HAVE_GFILENOTIFY
1371 globals_of_gfilenotify ();
1376 #ifdef HAVE_W32NOTIFY
1377 globals_of_w32notify ();
1379 /* Initialize environment from registry settings. */
1380 init_environment (argv
);
1381 init_ntproc (dumping
); /* must precede init_editfns. */
1384 /* Initialize and GC-protect Vinitial_environment and
1385 Vprocess_environment before set_initial_environment fills them
1388 syms_of_callproc ();
1389 /* egetenv is a pretty low-level facility, which may get called in
1390 many circumstances; it seems flimsy to put off initializing it
1391 until calling init_callproc. Do not do it when dumping. */
1393 set_initial_environment ();
1395 /* AIX crashes are reported in system versions 3.2.3 and 3.2.4
1396 if this is not done. Do it after set_global_environment so that we
1397 don't pollute Vglobal_environment. */
1398 /* Setting LANG here will defeat the startup locale processing... */
1403 /* Init buffer storage and default directory of main buffer. */
1404 init_buffer (initialized
);
1406 init_callproc_1 (); /* Must precede init_cmdargs and init_sys_modes. */
1408 /* Must precede init_lread. */
1409 init_cmdargs (argc
, argv
, skip_args
, original_pwd
);
1413 /* Erase any pre-dump messages in the message log, to avoid confusion. */
1414 Lisp_Object old_log_max
;
1415 old_log_max
= Vmessage_log_max
;
1416 XSETFASTINT (Vmessage_log_max
, 0);
1417 message_dolog ("", 0, 1, 0);
1418 Vmessage_log_max
= old_log_max
;
1421 init_callproc (); /* Must follow init_cmdargs but not init_sys_modes. */
1425 /* Check to see if Emacs has been installed correctly. */
1426 check_windows_init_file ();
1429 /* Intern the names of all standard functions and variables;
1430 define standard keys. */
1434 /* The basic levels of Lisp must come first. Note that
1435 syms_of_data and some others have already been called. */
1440 syms_of_floatfns ();
1443 syms_of_bytecode ();
1445 syms_of_casefiddle ();
1447 syms_of_category ();
1449 syms_of_character ();
1456 syms_of_filelock ();
1459 /* syms_of_keymap (); */
1467 syms_of_terminal ();
1478 syms_of_textprop ();
1479 syms_of_composite ();
1482 #endif /* WINDOWSNT */
1489 #ifdef HAVE_WINDOW_SYSTEM
1492 #endif /* HAVE_WINDOW_SYSTEM */
1493 #ifdef HAVE_X_WINDOWS
1498 #ifdef HAVE_XWIDGETS
1501 syms_of_xsettings ();
1508 #endif /* HAVE_X_WINDOWS */
1515 syms_of_decompress ();
1525 #endif /* HAVE_NTGUI */
1527 #if defined WINDOWSNT || defined HAVE_NTGUI
1528 syms_of_w32select ();
1535 syms_of_win16select ();
1542 syms_of_nsselect ();
1544 #endif /* HAVE_NS */
1550 #endif /* HAVE_INOTIFY */
1554 #endif /* HAVE_KQUEUE */
1556 #ifdef HAVE_GFILENOTIFY
1557 syms_of_gfilenotify ();
1558 #endif /* HAVE_GFILENOTIFY */
1561 syms_of_dbusbind ();
1562 #endif /* HAVE_DBUS */
1566 #ifdef HAVE_W32NOTIFY
1567 syms_of_w32notify ();
1568 #endif /* HAVE_W32NOTIFY */
1569 #endif /* WINDOWSNT */
1571 syms_of_profiler ();
1573 keys_of_casefiddle ();
1576 keys_of_keyboard ();
1582 /* Initialization that must be done even if the global variable
1583 initialized is non zero. */
1585 globals_of_w32font ();
1586 globals_of_w32fns ();
1587 globals_of_w32menu ();
1588 #endif /* HAVE_NTGUI */
1590 #if defined WINDOWSNT || defined HAVE_NTGUI
1591 globals_of_w32select ();
1597 /* This calls putenv and so must precede init_process_emacs. Also,
1598 it sets Voperating_system_release, which init_process_emacs uses. */
1599 init_editfns (dumping
);
1601 /* These two call putenv. */
1609 /* This can create a thread that may call getenv, so it must follow
1610 all calls to putenv and setenv. Also, this sets up
1611 add_keyboard_wait_descriptor, which init_display uses. */
1612 init_process_emacs ();
1614 init_keyboard (); /* This too must precede init_sys_modes. */
1615 if (!noninteractive
)
1616 init_display (); /* Determine terminal type. Calls init_sys_modes. */
1619 init_crit (); /* w32notify.c needs this in batch mode. */
1620 #endif /* HAVE_W32NOTIFY */
1622 #ifdef HAVE_WINDOW_SYSTEM
1624 #endif /* HAVE_WINDOW_SYSTEM */
1632 /* Handle -l loadup, args passed by Makefile. */
1633 if (argmatch (argv
, argc
, "-l", "--load", 3, &file
, &skip_args
))
1636 char file_utf8
[MAX_UTF8_PATH
];
1638 if (filename_from_ansi (file
, file_utf8
) == 0)
1641 Vtop_level
= list2 (Qload
, build_unibyte_string (file
));
1643 /* Unless next switch is -nl, load "loadup.el" first thing. */
1645 Vtop_level
= list2 (Qload
, build_string ("loadup.el"));
1648 /* Set up for profiling. This is known to work on FreeBSD,
1649 GNU/Linux and MinGW. It might work on some other systems too.
1650 Give it a try and tell us if it works on your system. To compile
1651 for profiling, use the configure option --enable-profiling. */
1652 #if defined (__FreeBSD__) || defined (GNU_LINUX) || defined (__MINGW32__)
1657 extern unsigned char etext
asm ("etext");
1663 monstartup ((uintptr_t) __executable_start
, (uintptr_t) &etext
);
1672 /* Enter editor command loop. This never returns. */
1678 /* Sort the args so we can find the most important ones
1679 at the beginning of argv. */
1681 /* First, here's a table of all the standard options. */
1683 struct standard_args
1686 const char *longname
;
1691 static const struct standard_args standard_args
[] =
1693 { "-version", "--version", 150, 0 },
1694 { "-chdir", "--chdir", 130, 1 },
1695 { "-t", "--terminal", 120, 1 },
1696 { "-nw", "--no-window-system", 110, 0 },
1697 { "-nw", "--no-windows", 110, 0 },
1698 { "-batch", "--batch", 100, 0 },
1699 { "-script", "--script", 100, 1 },
1700 { "-daemon", "--daemon", 99, 0 },
1701 { "-help", "--help", 90, 0 },
1702 { "-nl", "--no-loadup", 70, 0 },
1703 { "-nsl", "--no-site-lisp", 65, 0 },
1704 /* -d must come last before the options handled in startup.el. */
1705 { "-d", "--display", 60, 1 },
1706 { "-display", 0, 60, 1 },
1707 /* Now for the options handled in `command-line' (startup.el). */
1708 /* (Note that to imply -nsl, -Q is partially handled here.) */
1709 { "-Q", "--quick", 55, 0 },
1710 { "-quick", 0, 55, 0 },
1711 { "-q", "--no-init-file", 50, 0 },
1712 { "-no-init-file", 0, 50, 0 },
1713 { "-no-x-resources", "--no-x-resources", 40, 0 },
1714 { "-no-site-file", "--no-site-file", 40, 0 },
1715 { "-u", "--user", 30, 1 },
1716 { "-user", 0, 30, 1 },
1717 { "-debug-init", "--debug-init", 20, 0 },
1718 { "-iconic", "--iconic", 15, 0 },
1719 { "-D", "--basic-display", 12, 0},
1720 { "-basic-display", 0, 12, 0},
1721 { "-nbc", "--no-blinking-cursor", 12, 0 },
1722 /* Now for the options handled in `command-line-1' (startup.el). */
1723 { "-nbi", "--no-bitmap-icon", 10, 0 },
1724 { "-bg", "--background-color", 10, 1 },
1725 { "-background", 0, 10, 1 },
1726 { "-fg", "--foreground-color", 10, 1 },
1727 { "-foreground", 0, 10, 1 },
1728 { "-bd", "--border-color", 10, 1 },
1729 { "-bw", "--border-width", 10, 1 },
1730 { "-ib", "--internal-border", 10, 1 },
1731 { "-ms", "--mouse-color", 10, 1 },
1732 { "-cr", "--cursor-color", 10, 1 },
1733 { "-fn", "--font", 10, 1 },
1734 { "-font", 0, 10, 1 },
1735 { "-fs", "--fullscreen", 10, 0 },
1736 { "-fw", "--fullwidth", 10, 0 },
1737 { "-fh", "--fullheight", 10, 0 },
1738 { "-mm", "--maximized", 10, 0 },
1739 { "-g", "--geometry", 10, 1 },
1740 { "-geometry", 0, 10, 1 },
1741 { "-T", "--title", 10, 1 },
1742 { "-title", 0, 10, 1 },
1743 { "-name", "--name", 10, 1 },
1744 { "-xrm", "--xrm", 10, 1 },
1745 { "-parent-id", "--parent-id", 10, 1 },
1746 { "-r", "--reverse-video", 5, 0 },
1748 { "-reverse", 0, 5, 0 },
1749 { "-hb", "--horizontal-scroll-bars", 5, 0 },
1750 { "-vb", "--vertical-scroll-bars", 5, 0 },
1751 { "-color", "--color", 5, 0},
1752 { "-no-splash", "--no-splash", 3, 0 },
1753 { "-no-desktop", "--no-desktop", 3, 0 },
1755 { "-NSAutoLaunch", 0, 5, 1 },
1756 { "-NXAutoLaunch", 0, 5, 1 },
1757 { "-_NSMachLaunch", 0, 85, 1 },
1758 { "-MachLaunch", 0, 85, 1 },
1759 { "-macosx", 0, 85, 0 },
1760 { "-NSHost", 0, 85, 1 },
1762 /* These have the same priority as ordinary file name args,
1763 so they are not reordered with respect to those. */
1764 { "-L", "--directory", 0, 1 },
1765 { "-directory", 0, 0, 1 },
1766 { "-l", "--load", 0, 1 },
1767 { "-load", 0, 0, 1 },
1768 /* This has no longname, because using --scriptload confuses sort_args,
1769 because then the --script long option seems to match twice; ie
1770 you can't have a long option which is a prefix of another long
1771 option. In any case, this is entirely an internal option. */
1772 { "-scriptload", NULL
, 0, 1 },
1773 { "-f", "--funcall", 0, 1 },
1774 { "-funcall", 0, 0, 1 },
1775 { "-eval", "--eval", 0, 1 },
1776 { "-execute", "--execute", 0, 1 },
1777 { "-find-file", "--find-file", 0, 1 },
1778 { "-visit", "--visit", 0, 1 },
1779 { "-file", "--file", 0, 1 },
1780 { "-insert", "--insert", 0, 1 },
1782 { "-NXOpen", 0, 0, 1 },
1783 { "-NXOpenTemp", 0, 0, 1 },
1784 { "-NSOpen", 0, 0, 1 },
1785 { "-NSOpenTemp", 0, 0, 1 },
1786 { "-GSFilePath", 0, 0, 1 },
1788 /* This should be processed after ordinary file name args and the like. */
1789 { "-kill", "--kill", -10, 0 },
1792 /* Reorder the elements of ARGV (assumed to have ARGC elements)
1793 so that the highest priority ones come first.
1794 Do not change the order of elements of equal priority.
1795 If an option takes an argument, keep it and its argument together.
1797 If an option that takes no argument appears more
1798 than once, eliminate all but one copy of it. */
1801 sort_args (int argc
, char **argv
)
1803 char **new = xmalloc (argc
* sizeof *new);
1804 /* For each element of argv,
1805 the corresponding element of options is:
1806 0 for an option that takes no arguments,
1807 1 for an option that takes one argument, etc.
1808 -1 for an ordinary non-option argument. */
1809 int *options
= xnmalloc (argc
, sizeof *options
);
1810 int *priority
= xnmalloc (argc
, sizeof *priority
);
1812 int incoming_used
= 1;
1816 /* Categorize all the options,
1817 and figure out which argv elts are option arguments. */
1818 for (from
= 1; from
< argc
; from
++)
1822 if (argv
[from
][0] == '-')
1826 /* If we have found "--", don't consider
1827 any more arguments as options. */
1828 if (argv
[from
][1] == '-' && argv
[from
][2] == 0)
1830 /* Leave the "--", and everything following it, at the end. */
1831 for (; from
< argc
; from
++)
1833 priority
[from
] = -100;
1839 /* Look for a match with a known old-fashioned option. */
1840 for (i
= 0; i
< ARRAYELTS (standard_args
); i
++)
1841 if (!strcmp (argv
[from
], standard_args
[i
].name
))
1843 options
[from
] = standard_args
[i
].nargs
;
1844 priority
[from
] = standard_args
[i
].priority
;
1845 if (from
+ standard_args
[i
].nargs
>= argc
)
1846 fatal ("Option '%s' requires an argument\n", argv
[from
]);
1847 from
+= standard_args
[i
].nargs
;
1851 /* Look for a match with a known long option.
1852 MATCH is -1 if no match so far, -2 if two or more matches so far,
1853 >= 0 (the table index of the match) if just one match so far. */
1854 if (argv
[from
][1] == '-')
1856 char const *equals
= strchr (argv
[from
], '=');
1858 equals
? equals
- argv
[from
] : strlen (argv
[from
]);
1862 for (i
= 0; i
< ARRAYELTS (standard_args
); i
++)
1863 if (standard_args
[i
].longname
1864 && !strncmp (argv
[from
], standard_args
[i
].longname
,
1873 /* If we found exactly one match, use that. */
1876 options
[from
] = standard_args
[match
].nargs
;
1877 priority
[from
] = standard_args
[match
].priority
;
1878 /* If --OPTION=VALUE syntax is used,
1879 this option uses just one argv element. */
1882 if (from
+ options
[from
] >= argc
)
1883 fatal ("Option '%s' requires an argument\n", argv
[from
]);
1884 from
+= options
[from
];
1886 /* FIXME When match < 0, shouldn't there be some error,
1887 or at least indication to the user that there was a
1894 /* Copy the arguments, in order of decreasing priority, to NEW. */
1896 while (incoming_used
< argc
)
1899 int best_priority
= -9999;
1901 /* Find the highest priority remaining option.
1902 If several have equal priority, take the first of them. */
1903 for (from
= 1; from
< argc
; from
++)
1905 if (argv
[from
] != 0 && priority
[from
] > best_priority
)
1907 best_priority
= priority
[from
];
1910 /* Skip option arguments--they are tied to the options. */
1911 if (options
[from
] > 0)
1912 from
+= options
[from
];
1918 /* Copy the highest priority remaining option, with its args, to NEW.
1919 Unless it is a duplicate of the previous one. */
1920 if (! (options
[best
] == 0
1921 && ! strcmp (new[to
- 1], argv
[best
])))
1923 new[to
++] = argv
[best
];
1924 for (i
= 0; i
< options
[best
]; i
++)
1925 new[to
++] = argv
[best
+ i
+ 1];
1928 incoming_used
+= 1 + (options
[best
] > 0 ? options
[best
] : 0);
1930 /* Clear out this option in ARGV. */
1932 for (i
= 0; i
< options
[best
]; i
++)
1933 argv
[best
+ i
+ 1] = 0;
1936 /* If duplicate options were deleted, fill up extra space with null ptrs. */
1940 memcpy (argv
, new, sizeof (char *) * argc
);
1947 DEFUN ("kill-emacs", Fkill_emacs
, Skill_emacs
, 0, 1, "P",
1948 doc
: /* Exit the Emacs job and kill it.
1949 If ARG is an integer, return ARG as the exit program code.
1950 If ARG is a string, stuff it as keyboard input.
1952 This function is called upon receipt of the signals SIGTERM
1953 or SIGHUP, and upon SIGINT in batch mode.
1955 The value of `kill-emacs-hook', if not void,
1956 is a list of functions (of no args),
1957 all of which are called before Emacs is actually killed. */
1958 attributes
: noreturn
)
1963 /* Fsignal calls emacs_abort () if it sees that waiting_for_input is
1965 waiting_for_input
= 0;
1966 run_hook (Qkill_emacs_hook
);
1968 #ifdef HAVE_X_WINDOWS
1969 /* Transfer any clipboards we own to the clipboard manager. */
1970 x_clipboard_manager_save_all ();
1973 shut_down_emacs (0, (STRINGP (arg
) && !feof (stdin
)) ? arg
: Qnil
);
1976 ns_release_autorelease_pool (ns_pool
);
1979 /* If we have an auto-save list file,
1980 kill it because we are exiting Emacs deliberately (not crashing).
1981 Do it after shut_down_emacs, which does an auto-save. */
1982 if (STRINGP (Vauto_save_list_file_name
))
1984 Lisp_Object listfile
;
1985 listfile
= Fexpand_file_name (Vauto_save_list_file_name
, Qnil
);
1986 unlink (SSDATA (listfile
));
1990 exit_code
= (XINT (arg
) < 0
1991 ? XINT (arg
) | INT_MIN
1992 : XINT (arg
) & INT_MAX
);
1994 exit_code
= EXIT_SUCCESS
;
1999 /* Perform an orderly shutdown of Emacs. Autosave any modified
2000 buffers, kill any child processes, clean up the terminal modes (if
2001 we're in the foreground), and other stuff like that. Don't perform
2002 any redisplay; this may be called when Emacs is shutting down in
2003 the background, or after its X connection has died.
2005 If SIG is a signal number, print a message for it.
2007 This is called by fatal signal handlers, X protocol error handlers,
2011 shut_down_emacs (int sig
, Lisp_Object stuff
)
2013 /* Prevent running of hooks from now on. */
2016 /* Don't update display from now on. */
2017 Vinhibit_redisplay
= Qt
;
2019 /* If we are controlling the terminal, reset terminal modes. */
2022 pid_t pgrp
= getpgrp ();
2023 pid_t tpgrp
= tcgetpgrp (0);
2024 if ((tpgrp
!= -1) && tpgrp
== pgrp
)
2026 reset_all_sys_modes ();
2027 if (sig
&& sig
!= SIGTERM
)
2029 static char const format
[] = "Fatal error %d: ";
2030 char buf
[sizeof format
- 2 + INT_STRLEN_BOUND (int)];
2031 int buflen
= sprintf (buf
, format
, sig
);
2032 char const *sig_desc
= safe_strsignal (sig
);
2033 emacs_write (STDERR_FILENO
, buf
, buflen
);
2034 emacs_write (STDERR_FILENO
, sig_desc
, strlen (sig_desc
));
2040 reset_all_sys_modes ();
2043 stuff_buffered_input (stuff
);
2045 inhibit_sentinels
= 1;
2046 kill_buffer_processes (Qnil
);
2047 Fdo_auto_save (Qt
, Qnil
);
2049 unlock_all_files ();
2051 /* There is a tendency for a SIGIO signal to arrive within exit,
2052 and cause a SIGHUP because the input descriptor is already closed. */
2055 /* Do this only if terminating normally, we want glyph matrices
2056 etc. in a core dump. */
2057 if (sig
== 0 || sig
== SIGTERM
)
2059 check_glyph_memory ();
2060 check_message_stack ();
2068 ns_term_shutdown (sig
);
2072 xml_cleanup_parser ();
2086 DEFUN ("dump-emacs", Fdump_emacs
, Sdump_emacs
, 2, 2, 0,
2087 doc
: /* Dump current state of Emacs into executable file FILENAME.
2088 Take symbols from SYMFILE (presumably the file you executed to run Emacs).
2089 This is used in the file `loadup.el' when building Emacs.
2091 You must run Emacs in batch mode in order to dump it. */)
2092 (Lisp_Object filename
, Lisp_Object symfile
)
2096 ptrdiff_t count
= SPECPDL_INDEX ();
2100 if (! noninteractive
)
2101 error ("Dumping Emacs works only in batch mode");
2104 error ("Emacs can be dumped only once");
2108 /* Warn if the gap between BSS end and heap start is larger than this. */
2109 # define MAX_HEAP_BSS_DIFF (1024*1024)
2111 if (heap_bss_diff
> MAX_HEAP_BSS_DIFF
)
2113 fprintf (stderr
, "**************************************************\n");
2114 fprintf (stderr
, "Warning: Your system has a gap between BSS and the\n");
2115 fprintf (stderr
, "heap (%"pMu
" bytes). This usually means that exec-shield\n",
2117 fprintf (stderr
, "or something similar is in effect. The dump may\n");
2118 fprintf (stderr
, "fail because of this. See the section about\n");
2119 fprintf (stderr
, "exec-shield in etc/PROBLEMS for more information.\n");
2120 fprintf (stderr
, "**************************************************\n");
2122 #endif /* GNU_LINUX */
2124 /* Bind `command-line-processed' to nil before dumping,
2125 so that the dumped Emacs will process its command line
2126 and set up to work with X windows if appropriate. */
2127 symbol
= intern ("command-line-processed");
2128 specbind (symbol
, Qnil
);
2130 CHECK_STRING (filename
);
2131 filename
= Fexpand_file_name (filename
, Qnil
);
2132 filename
= ENCODE_FILE (filename
);
2133 if (!NILP (symfile
))
2135 CHECK_STRING (symfile
);
2136 if (SCHARS (symfile
))
2138 symfile
= Fexpand_file_name (symfile
, Qnil
);
2139 symfile
= ENCODE_FILE (symfile
);
2144 Vpurify_flag
= Qnil
;
2147 /* Tell malloc where start of impure now is. */
2148 /* Also arrange for warnings when nearly out of space. */
2149 #if !defined SYSTEM_MALLOC && !defined HYBRID_MALLOC
2151 /* On Windows, this was done before dumping, and that once suffices.
2152 Meanwhile, my_edata is not valid on Windows. */
2153 memory_warnings (my_edata
, malloc_warning
);
2154 #endif /* not WINDOWSNT */
2155 #endif /* not SYSTEM_MALLOC and not HYBRID_MALLOC */
2156 #ifdef DOUG_LEA_MALLOC
2157 malloc_state_ptr
= malloc_get_state ();
2160 unexec (SSDATA (filename
), !NILP (symfile
) ? SSDATA (symfile
) : 0);
2162 #ifdef DOUG_LEA_MALLOC
2163 free (malloc_state_ptr
);
2167 Vlibrary_cache
= Qnil
;
2169 #ifdef HAVE_WINDOW_SYSTEM
2170 reset_image_types ();
2175 return unbind_to (count
, Qnil
);
2178 #endif /* not CANNOT_DUMP */
2181 /* Recover from setlocale (LC_ALL, ""). */
2185 /* The Emacs Lisp reader needs LC_NUMERIC to be "C",
2186 so that numbers are read and printed properly for Emacs Lisp. */
2187 setlocale (LC_NUMERIC
, "C");
2190 /* Set system locale CATEGORY, with previous locale *PLOCALE, to
2193 synchronize_locale (int category
, Lisp_Object
*plocale
, Lisp_Object desired_locale
)
2195 if (! EQ (*plocale
, desired_locale
))
2197 *plocale
= desired_locale
;
2199 /* Changing categories like LC_TIME usually requires to specify
2200 an encoding suitable for the new locale, but MS-Windows's
2201 'setlocale' will only switch the encoding when LC_ALL is
2202 specified. So we ignore CATEGORY, use LC_ALL instead, and
2203 then restore LC_NUMERIC to "C", so reading and printing
2204 numbers is unaffected. */
2205 setlocale (LC_ALL
, (STRINGP (desired_locale
)
2206 ? SSDATA (desired_locale
)
2209 #else /* !WINDOWSNT */
2210 setlocale (category
, (STRINGP (desired_locale
)
2211 ? SSDATA (desired_locale
)
2213 #endif /* !WINDOWSNT */
2217 /* Set system time locale to match Vsystem_time_locale, if possible. */
2219 synchronize_system_time_locale (void)
2221 synchronize_locale (LC_TIME
, &Vprevious_system_time_locale
,
2222 Vsystem_time_locale
);
2225 /* Set system messages locale to match Vsystem_messages_locale, if
2228 synchronize_system_messages_locale (void)
2231 synchronize_locale (LC_MESSAGES
, &Vprevious_system_messages_locale
,
2232 Vsystem_messages_locale
);
2235 #endif /* HAVE_SETLOCALE */
2239 decode_env_path (const char *evarname
, const char *defalt
, bool empty
)
2241 const char *path
, *p
;
2242 Lisp_Object lpath
, element
, tem
;
2243 /* Default is to use "." for empty path elements.
2244 But if argument EMPTY is true, use nil instead. */
2245 Lisp_Object empty_element
= empty
? Qnil
: build_string (".");
2248 static const char *emacs_dir_env
= "%emacs_dir%/";
2249 const size_t emacs_dir_len
= strlen (emacs_dir_env
);
2250 const char *edir
= egetenv ("emacs_dir");
2251 char emacs_dir
[MAX_UTF8_PATH
];
2253 /* egetenv looks in process-environment, which holds the variables
2254 in their original system-locale encoding. We need emacs_dir to
2257 filename_from_ansi (edir
, emacs_dir
);
2260 /* It's okay to use getenv here, because this function is only used
2261 to initialize variables when Emacs starts up, and isn't called
2264 path
= getenv (evarname
);
2275 /* Ensure values from the environment use the proper directory separator. */
2281 char *path_utf8
, *q
, *d
;
2284 /* Convert each element of PATH to UTF-8. */
2285 p
= path_copy
= alloca (strlen (path
) + 1);
2286 strcpy (path_copy
, path
);
2287 d
= path_utf8
= alloca (4 * strlen (path
) + 1);
2290 q
= _mbschr (p
, SEPCHAR
);
2293 cnv_result
= filename_from_ansi (p
, d
);
2298 /* If conversion of this PATH elements fails, make sure
2299 destination pointer will stay put, thus effectively
2300 ignoring the offending element. */
2301 if (cnv_result
== 0)
2307 else if (cnv_result
!= 0 && d
> path_utf8
)
2308 d
[-1] = '\0'; /* remove last semi-colon and null-terminate PATH */
2310 path_copy
= path_utf8
;
2312 path_copy
= alloca (strlen (path
) + 1);
2313 strcpy (path_copy
, path
);
2315 dostounix_filename (path_copy
);
2322 p
= strchr (path
, SEPCHAR
);
2324 p
= path
+ strlen (path
);
2325 element
= ((p
- path
) ? make_unibyte_string (path
, p
- path
)
2327 if (! NILP (element
))
2330 /* Relative file names in the default path are interpreted as
2331 being relative to $emacs_dir. */
2332 if (edir
&& defaulted
2333 && strncmp (path
, emacs_dir_env
, emacs_dir_len
) == 0)
2334 element
= Fexpand_file_name (Fsubstring
2336 make_number (emacs_dir_len
),
2338 build_unibyte_string (emacs_dir
));
2341 /* Add /: to the front of the name
2342 if it would otherwise be treated as magic. */
2343 tem
= Ffind_file_name_handler (element
, Qt
);
2345 /* However, if the handler says "I'm safe",
2346 don't bother adding /:. */
2350 prop
= Fget (tem
, intern ("safe-magic"));
2357 AUTO_STRING (slash_colon
, "/:");
2358 element
= concat2 (slash_colon
, element
);
2360 } /* !NILP (element) */
2362 lpath
= Fcons (element
, lpath
);
2368 return Fnreverse (lpath
);
2371 DEFUN ("daemonp", Fdaemonp
, Sdaemonp
, 0, 0, 0,
2372 doc
: /* Return non-nil if the current emacs process is a daemon.
2373 If the daemon was given a name argument, return that name. */)
2378 return build_string (daemon_name
);
2385 DEFUN ("daemon-initialized", Fdaemon_initialized
, Sdaemon_initialized
, 0, 0, 0,
2386 doc
: /* Mark the Emacs daemon as being initialized.
2387 This finishes the daemonization process by doing the other half of detaching
2388 from the parent process and its tty file descriptors. */)
2394 error ("This function can only be called if emacs is run as a daemon");
2396 if (!DAEMON_RUNNING
)
2397 error ("The daemon has already been initialized");
2399 if (NILP (Vafter_init_time
))
2400 error ("This function can only be called after loading the init files");
2404 /* Get rid of stdin, stdout and stderr. */
2405 nfd
= emacs_open ("/dev/null", O_RDWR
, 0);
2407 err
|= dup2 (nfd
, 0) < 0;
2408 err
|= dup2 (nfd
, 1) < 0;
2409 err
|= dup2 (nfd
, 2) < 0;
2410 err
|= emacs_close (nfd
) != 0;
2412 /* Closing the pipe will notify the parent that it can exit.
2413 FIXME: In case some other process inherited the pipe, closing it here
2414 won't notify the parent because it's still open elsewhere, so we
2415 additionally send a byte, just to make sure the parent really exits.
2416 Instead, we should probably close the pipe in start-process and
2417 call-process to make sure the pipe is never inherited by
2419 err
|= write (daemon_pipe
[1], "\n", 1) < 0;
2420 err
|= emacs_close (daemon_pipe
[1]) != 0;
2421 /* Set it to an invalid value so we know we've already run this function. */
2422 daemon_pipe
[1] = -1;
2423 #else /* WINDOWSNT */
2424 /* Signal the waiting emacsclient process. */
2425 err
|= SetEvent (w32_daemon_event
) == 0;
2426 err
|= CloseHandle (w32_daemon_event
) == 0;
2427 /* Set it to an invalid value so we know we've already run this function. */
2428 w32_daemon_event
= INVALID_HANDLE_VALUE
;
2432 error ("I/O error during daemon initialization");
2437 syms_of_emacs (void)
2439 DEFSYM (Qfile_name_handler_alist
, "file-name-handler-alist");
2440 DEFSYM (Qrisky_local_variable
, "risky-local-variable");
2441 DEFSYM (Qkill_emacs
, "kill-emacs");
2442 DEFSYM (Qkill_emacs_hook
, "kill-emacs-hook");
2445 defsubr (&Sdump_emacs
);
2448 defsubr (&Skill_emacs
);
2450 defsubr (&Sinvocation_name
);
2451 defsubr (&Sinvocation_directory
);
2452 defsubr (&Sdaemonp
);
2453 defsubr (&Sdaemon_initialized
);
2455 DEFVAR_LISP ("command-line-args", Vcommand_line_args
,
2456 doc
: /* Args passed by shell to Emacs, as a list of strings.
2457 Many arguments are deleted from the list as they are processed. */);
2459 DEFVAR_LISP ("system-type", Vsystem_type
,
2460 doc
: /* The value is a symbol indicating the type of operating system you are using.
2462 `gnu' compiled for a GNU Hurd system.
2463 `gnu/linux' compiled for a GNU/Linux system.
2464 `gnu/kfreebsd' compiled for a GNU system with a FreeBSD kernel.
2465 `darwin' compiled for Darwin (GNU-Darwin, Mac OS X, ...).
2466 `ms-dos' compiled as an MS-DOS application.
2467 `windows-nt' compiled as a native W32 application.
2468 `cygwin' compiled using the Cygwin library.
2469 Anything else (in Emacs 24.1, the possibilities are: aix, berkeley-unix,
2470 hpux, irix, usg-unix-v) indicates some sort of Unix system. */);
2471 Vsystem_type
= intern_c_string (SYSTEM_TYPE
);
2472 /* See configure.ac for the possible SYSTEM_TYPEs. */
2474 DEFVAR_LISP ("system-configuration", Vsystem_configuration
,
2475 doc
: /* Value is string indicating configuration Emacs was built for. */);
2476 Vsystem_configuration
= build_string (EMACS_CONFIGURATION
);
2478 DEFVAR_LISP ("system-configuration-options", Vsystem_configuration_options
,
2479 doc
: /* String containing the configuration options Emacs was built with. */);
2480 Vsystem_configuration_options
= build_string (EMACS_CONFIG_OPTIONS
);
2482 DEFVAR_LISP ("system-configuration-features", Vsystem_configuration_features
,
2483 doc
: /* String listing some of the main features this Emacs was compiled with.
2484 An element of the form \"FOO\" generally means that HAVE_FOO was
2485 defined during the build.
2487 This is mainly intended for diagnostic purposes in bug reports.
2488 Don't rely on it for testing whether a feature you want to use is available. */);
2489 Vsystem_configuration_features
= build_string (EMACS_CONFIG_FEATURES
);
2491 DEFVAR_BOOL ("noninteractive", noninteractive1
,
2492 doc
: /* Non-nil means Emacs is running without interactive terminal. */);
2494 DEFVAR_LISP ("kill-emacs-hook", Vkill_emacs_hook
,
2495 doc
: /* Hook run when `kill-emacs' is called.
2496 Since `kill-emacs' may be invoked when the terminal is disconnected (or
2497 in other similar situations), functions placed on this hook should not
2498 expect to be able to interact with the user. To ask for confirmation,
2499 see `kill-emacs-query-functions' instead.
2501 Before Emacs 24.1, the hook was not run in batch mode, i.e., if
2502 `noninteractive' was non-nil. */);
2503 Vkill_emacs_hook
= Qnil
;
2505 DEFVAR_LISP ("path-separator", Vpath_separator
,
2506 doc
: /* String containing the character that separates directories in
2507 search paths, such as PATH and other similar environment variables. */);
2510 Vpath_separator
= make_string (&c
, 1);
2513 DEFVAR_LISP ("invocation-name", Vinvocation_name
,
2514 doc
: /* The program name that was used to run Emacs.
2515 Any directory names are omitted. */);
2517 DEFVAR_LISP ("invocation-directory", Vinvocation_directory
,
2518 doc
: /* The directory in which the Emacs executable was found, to run it.
2519 The value is nil if that directory's name is not known. */);
2521 DEFVAR_LISP ("installation-directory", Vinstallation_directory
,
2522 doc
: /* A directory within which to look for the `lib-src' and `etc' directories.
2523 In an installed Emacs, this is normally nil. It is non-nil if
2524 both `lib-src' (on MS-DOS, `info') and `etc' directories are found
2525 within the variable `invocation-directory' or its parent. For example,
2526 this is the case when running an uninstalled Emacs executable from its
2527 build directory. */);
2528 Vinstallation_directory
= Qnil
;
2530 DEFVAR_LISP ("system-messages-locale", Vsystem_messages_locale
,
2531 doc
: /* System locale for messages. */);
2532 Vsystem_messages_locale
= Qnil
;
2534 DEFVAR_LISP ("previous-system-messages-locale",
2535 Vprevious_system_messages_locale
,
2536 doc
: /* Most recently used system locale for messages. */);
2537 Vprevious_system_messages_locale
= Qnil
;
2539 DEFVAR_LISP ("system-time-locale", Vsystem_time_locale
,
2540 doc
: /* System locale for time. */);
2541 Vsystem_time_locale
= Qnil
;
2543 DEFVAR_LISP ("previous-system-time-locale", Vprevious_system_time_locale
,
2544 doc
: /* Most recently used system locale for time. */);
2545 Vprevious_system_time_locale
= Qnil
;
2547 DEFVAR_LISP ("before-init-time", Vbefore_init_time
,
2548 doc
: /* Value of `current-time' before Emacs begins initialization. */);
2549 Vbefore_init_time
= Qnil
;
2551 DEFVAR_LISP ("after-init-time", Vafter_init_time
,
2552 doc
: /* Value of `current-time' after loading the init files.
2553 This is nil during initialization. */);
2554 Vafter_init_time
= Qnil
;
2556 DEFVAR_BOOL ("inhibit-x-resources", inhibit_x_resources
,
2557 doc
: /* If non-nil, X resources, Windows Registry settings, and NS defaults are not used. */);
2558 inhibit_x_resources
= 0;
2560 DEFVAR_LISP ("emacs-copyright", Vemacs_copyright
,
2561 doc
: /* Short copyright string for this version of Emacs. */);
2562 Vemacs_copyright
= build_string (emacs_copyright
);
2564 DEFVAR_LISP ("emacs-version", Vemacs_version
,
2565 doc
: /* Version numbers of this version of Emacs. */);
2566 Vemacs_version
= build_string (emacs_version
);
2568 DEFVAR_LISP ("report-emacs-bug-address", Vreport_emacs_bug_address
,
2569 doc
: /* Address of mailing list for GNU Emacs bugs. */);
2570 Vreport_emacs_bug_address
= build_string (emacs_bugreport
);
2572 DEFVAR_LISP ("dynamic-library-alist", Vdynamic_library_alist
,
2573 doc
: /* Alist of dynamic libraries vs external files implementing them.
2574 Each element is a list (LIBRARY FILE...), where the car is a symbol
2575 representing a supported external library, and the rest are strings giving
2576 alternate filenames for that library.
2578 Emacs tries to load the library from the files in the order they appear on
2579 the list; if none is loaded, the running session of Emacs won't have access
2582 Note that image types `pbm' and `xbm' do not need entries in this variable
2583 because they do not depend on external libraries and are always available.
2585 Also note that this is not a generic facility for accessing external
2586 libraries; only those already known by Emacs will be loaded. */);
2587 Vdynamic_library_alist
= Qnil
;
2588 Fput (intern_c_string ("dynamic-library-alist"), Qrisky_local_variable
, Qt
);
2591 Vlibrary_cache
= Qnil
;
2592 staticpro (&Vlibrary_cache
);