1 /* Fully extensible Emacs, running on Unix, intended for GNU.
3 Copyright (C) 1985-1987, 1993-1995, 1997-1999, 2001-2014
4 Free Software Foundation, Inc.
6 This file is part of GNU Emacs.
8 GNU Emacs is free software: you can redistribute it and/or modify
9 it under the terms of the GNU General Public License as published by
10 the Free Software Foundation, either version 3 of the License, or
11 (at your option) any later version.
13 GNU Emacs is distributed in the hope that it will be useful,
14 but WITHOUT ANY WARRANTY; without even the implied warranty of
15 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
16 GNU General Public License for more details.
18 You should have received a copy of the GNU General Public License
19 along with GNU Emacs. If not, see <http://www.gnu.org/licenses/>. */
21 #define INLINE EXTERN_INLINE
27 #include <sys/types.h>
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"
55 #ifdef HAVE_WINDOW_SYSTEM
57 #endif /* HAVE_WINDOW_SYSTEM */
59 #ifdef NS_IMPL_GNUSTEP
60 /* At least under Debian, GSConfig is in a subdirectory. --Stef */
61 #include <GNUstepBase/GSConfig.h>
65 #include "intervals.h"
66 #include "character.h"
72 #include "blockinput.h"
73 #include "syssignal.h"
76 #include "termhooks.h"
81 #include "composite.h"
82 #include "dispextern.h"
84 #include "sysselect.h"
91 #if (defined PROFILING \
92 && (defined __FreeBSD__ || defined GNU_LINUX || defined __MINGW32__))
93 # include <sys/gmon.h>
94 extern void moncontrol (int mode
);
101 #ifdef HAVE_SETRLIMIT
102 #include <sys/time.h>
103 #include <sys/resource.h>
106 #ifdef HAVE_PERSONALITY_LINUX32
107 #include <sys/personality.h>
110 Lisp_Object symbol_module
;
111 Lisp_Object function_module
;
112 Lisp_Object plist_module
;
114 static const char emacs_version
[] = PACKAGE_VERSION
;
115 static const char emacs_copyright
[] = COPYRIGHT
;
116 static const char emacs_bugreport
[] = PACKAGE_BUGREPORT
;
118 /* Empty lisp strings. To avoid having to build any others. */
119 Lisp_Object empty_unibyte_string
, empty_multibyte_string
;
122 /* Cache for externally loaded libraries. */
123 Lisp_Object Vlibrary_cache
;
126 /* Set after Emacs has started up the first time.
127 Prevents reinitialization of the Lisp world and keymaps
128 on subsequent starts. */
131 /* Set to true if this instance of Emacs might dump. */
135 extern void unexec_init_emacs_zone (void);
138 #ifdef DOUG_LEA_MALLOC
139 /* Preserves a pointer to the memory allocated that copies that
140 static data inside glibc's malloc. */
141 static void *malloc_state_ptr
;
142 /* From glibc, a routine that returns a copy of the malloc internal state. */
143 extern void *malloc_get_state (void);
144 /* From glibc, a routine that overwrites the malloc internal state. */
145 extern int malloc_set_state (void *);
146 /* True if the MALLOC_CHECK_ environment variable was set while
147 dumping. Used to work around a bug in glibc's malloc. */
148 static bool malloc_using_checking
;
149 #elif defined HAVE_PTHREAD && !defined SYSTEM_MALLOC
150 extern void malloc_enable_thread (void);
153 Lisp_Object Qfile_name_handler_alist
;
155 Lisp_Object Qrisky_local_variable
;
157 Lisp_Object Qkill_emacs
;
158 static Lisp_Object Qkill_emacs_hook
;
160 /* If true, Emacs should not attempt to use a window-specific code,
161 but instead should use the virtual terminal under which it was started. */
162 bool inhibit_window_system
;
164 /* If true, a filter or a sentinel is running. Tested to save the match
165 data on the first attempt to change it inside asynchronous code. */
166 bool running_asynch_code
;
168 #if defined (HAVE_X_WINDOWS) || defined (HAVE_NS)
169 /* If true, -d was specified, meaning we're using some window system. */
173 #if defined (DOUG_LEA_MALLOC) || defined (GNU_LINUX)
174 /* The address where the heap starts (from the first sbrk (0) call). */
175 static void *my_heap_start
;
179 /* The gap between BSS end and heap start as far as we can tell. */
180 static uprintmax_t heap_bss_diff
;
183 /* To run as a daemon under Cocoa or Windows, we must do a fork+exec,
186 On Cocoa, CoreFoundation lib fails in forked process:
187 http://developer.apple.com/ReleaseNotes/
188 CoreFoundation/CoreFoundation.html)
190 On Windows, a Cygwin fork child cannot access the USER subsystem.
192 We mark being in the exec'd process by a daemon name argument of
193 form "--daemon=\nFD0,FD1\nNAME" where FD are the pipe file descriptors,
194 NAME is the original daemon name, if any. */
195 #if defined NS_IMPL_COCOA || (defined HAVE_NTGUI && defined CYGWIN)
196 # define DAEMON_MUST_EXEC
199 /* True means running Emacs without interactive terminal. */
202 /* True means remove site-lisp directories from load-path. */
205 /* Name for the server started by the daemon.*/
206 static char *daemon_name
;
208 /* Pipe used to send exit notification to the daemon parent at
212 /* Save argv and argc. */
216 static void sort_args (int argc
, char **argv
);
217 static void syms_of_emacs (void);
219 /* C99 needs each string to be at most 4095 characters, and the usage
220 strings below are split to not overflow this limit. */
221 static char const *const usage_message
[] =
224 Run Emacs, the extensible, customizable, self-documenting real-time\n\
225 display editor. The recommended way to start Emacs for normal editing\n\
226 is with no options at all.\n\
228 Run M-x info RET m emacs RET m emacs invocation RET inside Emacs to\n\
229 read the main documentation for these command-line arguments.\n\
231 Initialization options:\n\
235 --batch do not do interactive display; implies -q\n\
236 --chdir DIR change to directory DIR\n\
237 --daemon start a server in the background\n\
238 --debug-init enable Emacs Lisp debugger for init file\n\
239 --display, -d DISPLAY use X server DISPLAY\n\
242 --no-desktop do not load a saved desktop\n\
243 --no-init-file, -q load neither ~/.emacs nor default.el\n\
244 --no-shared-memory, -nl do not use shared memory\n\
245 --no-site-file do not load site-start.el\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\
253 --script FILE run FILE as an Emacs Lisp script\n\
254 --terminal, -t DEVICE use DEVICE for terminal I/O\n\
255 --user, -u USER load ~USER/.emacs instead of your own\n\
261 FILE visit FILE using find-file\n\
262 +LINE go to line LINE in next FILE\n\
263 +LINE:COLUMN go to line LINE, column COLUMN, in next FILE\n\
264 --directory, -L DIR prepend DIR to load-path (with :DIR, append DIR)\n\
265 --eval EXPR evaluate Emacs Lisp expression EXPR\n\
266 --execute EXPR evaluate Emacs Lisp expression EXPR\n\
269 --file FILE visit FILE using find-file\n\
270 --find-file FILE visit FILE using find-file\n\
271 --funcall, -f FUNC call Emacs Lisp function FUNC with no arguments\n\
272 --insert FILE insert contents of FILE into current buffer\n\
273 --kill exit without asking for confirmation\n\
274 --load, -l FILE load Emacs Lisp FILE using the load function\n\
275 --visit FILE visit FILE using find-file\n\
281 --background-color, -bg COLOR window background color\n\
282 --basic-display, -D disable many display features;\n\
283 used for debugging Emacs\n\
284 --border-color, -bd COLOR main border color\n\
285 --border-width, -bw WIDTH width of main border\n\
288 --color, --color=MODE override color mode for character terminals;\n\
289 MODE defaults to `auto', and\n\
290 can also be `never', `always',\n\
291 or a mode name like `ansi8'\n\
292 --cursor-color, -cr COLOR color of the Emacs cursor indicating point\n\
293 --font, -fn FONT default font; must be fixed-width\n\
294 --foreground-color, -fg COLOR window foreground color\n\
297 --fullheight, -fh make the first frame high as the screen\n\
298 --fullscreen, -fs make the first frame fullscreen\n\
299 --fullwidth, -fw make the first frame wide as the screen\n\
300 --maximized, -mm make the first frame maximized\n\
301 --geometry, -g GEOMETRY window geometry\n\
304 --no-bitmap-icon, -nbi do not use picture of gnu for Emacs icon\n\
305 --iconic start Emacs in iconified state\n\
306 --internal-border, -ib WIDTH width between text and main border\n\
307 --line-spacing, -lsp PIXELS additional space to put between lines\n\
308 --mouse-color, -ms COLOR mouse cursor color in Emacs window\n\
309 --name NAME title for initial Emacs frame\n\
312 --no-blinking-cursor, -nbc disable blinking cursor\n\
313 --reverse-video, -r, -rv switch foreground and background\n\
314 --title, -T TITLE title for initial Emacs frame\n\
315 --vertical-scroll-bars, -vb enable vertical scroll bars\n\
316 --xrm XRESOURCES set additional X resources\n\
317 --parent-id XID set parent window\n\
318 --help display this help and exit\n\
319 --version output version information and exit\n\
323 You can generally also specify long option names with a single -; for\n\
324 example, -batch as well as --batch. You can use any unambiguous\n\
325 abbreviation for a --option.\n\
327 Various environment variables and window system resources also affect\n\
328 the operation of Emacs. See the main documentation.\n\
330 Report bugs to " PACKAGE_BUGREPORT
". First, please see the Bugs\n\
331 section of the Emacs manual or the file BUGS.\n"
335 /* True if handling a fatal error already. */
336 bool fatal_error_in_progress
;
339 /* NS autrelease pool, for memory management. */
340 static void *ns_pool
;
345 setlocale (int cat
, char const *locale
)
352 /* Report a fatal error due to signal SIG, output a backtrace of at
353 most BACKTRACE_LIMIT lines, and exit. */
355 terminate_due_to_signal (int sig
, int backtrace_limit
)
357 signal (sig
, SIG_DFL
);
358 totally_unblock_input ();
360 /* If fatal error occurs in code below, avoid infinite recursion. */
361 if (! fatal_error_in_progress
)
363 fatal_error_in_progress
= 1;
365 if (sig
== SIGTERM
|| sig
== SIGHUP
|| sig
== SIGINT
)
366 Fkill_emacs (make_number (sig
));
368 shut_down_emacs (sig
, Qnil
);
369 emacs_backtrace (backtrace_limit
);
372 /* Signal the same code; this time it will really be fatal.
373 Since we're in a signal handler, the signal is blocked, so we
374 have to unblock it if we want to really receive it. */
378 sigemptyset (&unblocked
);
379 sigaddset (&unblocked
, sig
);
380 pthread_sigmask (SIG_UNBLOCK
, &unblocked
, 0);
386 /* This shouldn't be executed, but it prevents a warning. */
390 /* Code for dealing with Lisp access to the Unix command line. */
393 init_cmdargs (int argc
, char **argv
, int skip_args
, char *original_pwd
)
396 Lisp_Object name
, dir
, handler
;
398 Lisp_Object raw_name
;
404 /* Must use argv[0] converted to UTF-8, as it begets many standard
405 file and directory names. */
407 char argv0
[MAX_UTF8_PATH
];
409 if (filename_from_ansi (argv
[0], argv0
) == 0)
410 raw_name
= build_unibyte_string (argv0
);
412 raw_name
= build_unibyte_string (argv
[0]);
415 raw_name
= build_unibyte_string (argv
[0]);
418 /* Add /: to the front of the name
419 if it would otherwise be treated as magic. */
420 handler
= Ffind_file_name_handler (raw_name
, Qt
);
421 if (! NILP (handler
))
422 raw_name
= concat2 (build_string ("/:"), raw_name
);
424 Vinvocation_name
= Ffile_name_nondirectory (raw_name
);
425 Vinvocation_directory
= Ffile_name_directory (raw_name
);
427 /* If we got no directory in argv[0], search PATH to find where
428 Emacs actually came from. */
429 if (NILP (Vinvocation_directory
))
432 int yes
= openp (Vexec_path
, Vinvocation_name
,
433 Vexec_suffixes
, &found
, make_number (X_OK
), false);
436 /* Add /: to the front of the name
437 if it would otherwise be treated as magic. */
438 handler
= Ffind_file_name_handler (found
, Qt
);
439 if (! NILP (handler
))
440 found
= concat2 (build_string ("/:"), found
);
441 Vinvocation_directory
= Ffile_name_directory (found
);
445 if (!NILP (Vinvocation_directory
)
446 && NILP (Ffile_name_absolute_p (Vinvocation_directory
)))
447 /* Emacs was started with relative path, like ./emacs.
451 original_pwd
? build_unibyte_string (original_pwd
) : Qnil
;
453 Vinvocation_directory
= Fexpand_file_name (Vinvocation_directory
, odir
);
456 Vinstallation_directory
= Qnil
;
458 if (!NILP (Vinvocation_directory
))
460 dir
= Vinvocation_directory
;
462 /* If we are running from the build directory, set DIR to the
463 src subdirectory of the Emacs tree, like on Posix
465 if (SBYTES (dir
) > sizeof ("/i386/") - 1
466 && 0 == strcmp (SSDATA (dir
) + SBYTES (dir
) - sizeof ("/i386/") + 1,
468 dir
= Fexpand_file_name (build_string ("../.."), dir
);
469 #else /* !WINDOWSNT */
471 name
= Fexpand_file_name (Vinvocation_name
, dir
);
474 Lisp_Object tem
, lib_src_exists
;
475 Lisp_Object etc_exists
, info_exists
;
477 /* See if dir contains subdirs for use by Emacs.
478 Check for the ones that would exist in a build directory,
479 not including lisp and info. */
480 tem
= Fexpand_file_name (build_string ("lib-src"), dir
);
481 lib_src_exists
= Ffile_exists_p (tem
);
484 /* MSDOS installations frequently remove lib-src, but we still
485 must set installation-directory, or else info won't find
486 its files (it uses the value of installation-directory). */
487 tem
= Fexpand_file_name (build_string ("info"), dir
);
488 info_exists
= Ffile_exists_p (tem
);
493 if (!NILP (lib_src_exists
) || !NILP (info_exists
))
495 tem
= Fexpand_file_name (build_string ("etc"), dir
);
496 etc_exists
= Ffile_exists_p (tem
);
497 if (!NILP (etc_exists
))
499 Vinstallation_directory
500 = Ffile_name_as_directory (dir
);
505 /* See if dir's parent contains those subdirs. */
506 tem
= Fexpand_file_name (build_string ("../lib-src"), dir
);
507 lib_src_exists
= Ffile_exists_p (tem
);
511 /* See the MSDOS commentary above. */
512 tem
= Fexpand_file_name (build_string ("../info"), dir
);
513 info_exists
= Ffile_exists_p (tem
);
518 if (!NILP (lib_src_exists
) || !NILP (info_exists
))
520 tem
= Fexpand_file_name (build_string ("../etc"), dir
);
521 etc_exists
= Ffile_exists_p (tem
);
522 if (!NILP (etc_exists
))
524 tem
= Fexpand_file_name (build_string (".."), dir
);
525 Vinstallation_directory
526 = Ffile_name_as_directory (tem
);
531 /* If the Emacs executable is actually a link,
532 next try the dir that the link points into. */
533 tem
= Ffile_symlink_p (name
);
536 name
= Fexpand_file_name (tem
, dir
);
537 dir
= Ffile_name_directory (name
);
544 Vcommand_line_args
= Qnil
;
546 for (i
= argc
- 1; i
>= 0; i
--)
548 if (i
== 0 || i
> skip_args
)
549 /* For the moment, we keep arguments as is in unibyte strings.
550 They are decoded in the function command-line after we know
551 locale-coding-system. */
553 = Fcons (build_unibyte_string (argv
[i
]), Vcommand_line_args
);
559 DEFUN ("invocation-name", Finvocation_name
, Sinvocation_name
, 0, 0, 0,
560 doc
: /* Return the program name that was used to run Emacs.
561 Any directory names are omitted. */)
564 return Fcopy_sequence (Vinvocation_name
);
567 DEFUN ("invocation-directory", Finvocation_directory
, Sinvocation_directory
,
569 doc
: /* Return the directory name in which the Emacs executable was located. */)
572 return Fcopy_sequence (Vinvocation_directory
);
577 /* A valid but unlikely value for the TZ environment value.
578 It is OK (though a bit slower) if the user actually chooses this value. */
579 static char const dump_tz
[] = "UtC0";
582 /* Test whether the next argument in ARGV matches SSTR or a prefix of
583 LSTR (at least MINLEN characters). If so, then if VALPTR is non-null
584 (the argument is supposed to have a value) store in *VALPTR either
585 the next argument or the portion of this one after the equal sign.
586 ARGV is read starting at position *SKIPPTR; this index is advanced
587 by the number of arguments used.
589 Too bad we can't just use getopt for all of this, but we don't have
590 enough information to do it right. */
593 argmatch (char **argv
, int argc
, const char *sstr
, const char *lstr
,
594 int minlen
, char **valptr
, int *skipptr
)
600 /* Don't access argv[argc]; give up in advance. */
601 if (argc
<= *skipptr
+ 1)
604 arg
= argv
[*skipptr
+1];
607 if (strcmp (arg
, sstr
) == 0)
611 *valptr
= argv
[*skipptr
+2];
618 arglen
= (valptr
!= NULL
&& (p
= strchr (arg
, '=')) != NULL
619 ? p
- arg
: strlen (arg
));
620 if (lstr
== 0 || arglen
< minlen
|| strncmp (arg
, lstr
, arglen
) != 0)
622 else if (valptr
== NULL
)
633 else if (argv
[*skipptr
+2] != NULL
)
635 *valptr
= argv
[*skipptr
+2];
645 #ifdef DOUG_LEA_MALLOC
647 /* malloc can be invoked even before main (e.g. by the dynamic
648 linker), so the dumped malloc state must be restored as early as
649 possible using this special hook. */
652 malloc_initialize_hook (void)
656 if (!malloc_using_checking
)
657 /* Work around a bug in glibc's malloc. MALLOC_CHECK_ must be
658 ignored if the heap to be restored was constructed without
659 malloc checking. Can't use unsetenv, since that calls malloc. */
663 for (p
= environ
; p
&& *p
; p
++)
664 if (strncmp (*p
, "MALLOC_CHECK_=", 14) == 0)
673 malloc_set_state (malloc_state_ptr
);
674 free (malloc_state_ptr
);
678 if (my_heap_start
== 0)
679 my_heap_start
= sbrk (0);
680 malloc_using_checking
= getenv ("MALLOC_CHECK_") != NULL
;
684 void (*__malloc_initialize_hook
) (void) EXTERNALLY_VISIBLE
= malloc_initialize_hook
;
686 #endif /* DOUG_LEA_MALLOC */
688 /* Close standard output and standard error, reporting any write
689 errors as best we can. This is intended for use with atexit. */
691 close_output_streams (void)
693 if (close_stream (stdout
) != 0)
695 emacs_perror ("Write error to standard output");
696 _exit (EXIT_FAILURE
);
699 if (close_stream (stderr
) != 0)
700 _exit (EXIT_FAILURE
);
704 string_from_scheme (Lisp_Object scheme_string
)
707 char *c_string
= scm_to_utf8_stringn (scheme_string
, &nbytes
);
708 return make_string_from_bytes (c_string
,
709 scm_c_string_length (scheme_string
),
713 static int main2 (void *, int, char **);
716 main (int argc
, char **argv
)
718 /* Override Guile's libgc configuration. */
719 xputenv ("GC_ALL_INTERIOR_POINTERS=1");
720 scm_boot_guile (argc
, argv
, main2
, NULL
);
725 main2 (void *ignore
, int argc
, char **argv
)
727 bool do_initial_setlocale
;
730 #ifdef HAVE_SETRLIMIT
736 #ifdef DAEMON_MUST_EXEC
741 /* If we use --chdir, this records the original directory. */
742 char *original_pwd
= 0;
744 #ifdef G_SLICE_ALWAYS_MALLOC
745 /* This is used by the Cygwin build. It's not needed starting with
746 cygwin-1.7.24, but it doesn't do any harm. */
747 xputenv ("G_SLICE=always-malloc");
751 might_dump
= !initialized
;
757 extern char my_endbss
[];
758 extern char *my_endbss_static
;
760 if (my_heap_start
== 0)
761 my_heap_start
= sbrk (0);
763 heap_bss_diff
= (char *)my_heap_start
- max (my_endbss
, my_endbss_static
);
767 #if defined WINDOWSNT || defined HAVE_NTGUI
768 /* Set global variables used to detect Windows version. Do this as
769 early as possible. (unexw32.c calls this function as well, but
770 the additional call here is harmless.) */
771 cache_system_info ();
773 /* On Windows 9X, we have to load UNICOWS.DLL as early as possible,
774 to have non-stub implementations of APIs we need to convert file
775 names between UTF-8 and the system's ANSI codepage. */
776 maybe_load_unicows_dll ();
780 #ifdef RUN_TIME_REMAP
782 run_time_remap (argv
[0]);
785 /* If using unexmacosx.c (set by s/darwin.h), we must do this. */
788 unexec_init_emacs_zone ();
791 atexit (close_output_streams
);
793 sort_args (argc
, argv
);
795 while (argv
[argc
]) argc
++;
797 if (argmatch (argv
, argc
, "-version", "--version", 3, NULL
, &skip_args
))
799 const char *version
, *copyright
;
802 Lisp_Object tem
, tem2
;
803 tem
= Fsymbol_value (intern_c_string ("emacs-version"));
804 tem2
= Fsymbol_value (intern_c_string ("emacs-copyright"));
807 fprintf (stderr
, "Invalid value of `emacs-version'\n");
812 fprintf (stderr
, "Invalid value of `emacs-copyright'\n");
817 version
= SSDATA (tem
);
818 copyright
= SSDATA (tem2
);
823 version
= emacs_version
;
824 copyright
= emacs_copyright
;
826 printf ("GNU Emacs %s\n", version
);
827 printf ("%s\n", copyright
);
828 printf ("GNU Emacs comes with ABSOLUTELY NO WARRANTY.\n");
829 printf ("You may redistribute copies of Emacs\n");
830 printf ("under the terms of the GNU General Public License.\n");
831 printf ("For more information about these matters, ");
832 printf ("see the file named COPYING.\n");
836 if (argmatch (argv
, argc
, "-chdir", "--chdir", 4, &ch_to_dir
, &skip_args
))
839 /* argv[] array is kept in its original ANSI codepage encoding,
840 we need to convert to UTF-8, for chdir to work. */
841 char newdir
[MAX_UTF8_PATH
];
843 filename_from_ansi (ch_to_dir
, newdir
);
846 original_pwd
= get_current_dir_name ();
847 if (chdir (ch_to_dir
) != 0)
849 fprintf (stderr
, "%s: Can't chdir to %s: %s\n",
850 argv
[0], ch_to_dir
, strerror (errno
));
855 dumping
= !initialized
&& (strcmp (argv
[argc
- 1], "dump") == 0
856 || strcmp (argv
[argc
- 1], "bootstrap") == 0);
858 #ifdef HAVE_PERSONALITY_LINUX32
859 if (dumping
&& ! getenv ("EMACS_HEAP_EXEC"))
861 /* Set this so we only do this once. */
862 xputenv ("EMACS_HEAP_EXEC=true");
864 /* A flag to turn off address randomization which is introduced
865 in linux kernel shipped with fedora core 4 */
866 #define ADD_NO_RANDOMIZE 0x0040000
867 personality (PER_LINUX32
| ADD_NO_RANDOMIZE
);
868 #undef ADD_NO_RANDOMIZE
870 execvp (argv
[0], argv
);
872 /* If the exec fails, try to dump anyway. */
873 emacs_perror (argv
[0]);
875 #endif /* HAVE_PERSONALITY_LINUX32 */
877 #if defined (HAVE_SETRLIMIT) && defined (RLIMIT_STACK)
878 /* Extend the stack space available.
879 Don't do that if dumping, since some systems (e.g. DJGPP)
880 might define a smaller stack limit at that time. */
883 && (!noninteractive
|| initialized
)
885 && !getrlimit (RLIMIT_STACK
, &rlim
))
888 extern size_t re_max_failures
;
889 /* Approximate the amount regex.c needs per unit of re_max_failures. */
890 int ratio
= 20 * sizeof (char *);
891 /* Then add 33% to cover the size of the smaller stacks that regex.c
892 successively allocates and discards, on its way to the maximum. */
894 /* Add in some extra to cover
895 what we're likely to use for other reasons. */
896 newlim
= re_max_failures
* ratio
+ 200000;
898 /* NetBSD (at least NetBSD 1.2G and former) has a bug in its
899 stack allocation routine for new process that the allocation
900 fails if stack limit is not on page boundary. So, round up the
901 new limit to page boundary. */
902 newlim
= (newlim
+ getpagesize () - 1) / getpagesize () * getpagesize ();
904 if (newlim
> rlim
.rlim_max
)
906 newlim
= rlim
.rlim_max
;
907 /* Don't let regex.c overflow the stack we have. */
908 re_max_failures
= (newlim
- 200000) / ratio
;
910 if (rlim
.rlim_cur
< newlim
)
911 rlim
.rlim_cur
= newlim
;
913 setrlimit (RLIMIT_STACK
, &rlim
);
915 #endif /* HAVE_SETRLIMIT and RLIMIT_STACK */
919 #ifndef SYSTEM_MALLOC
920 /* Arrange to get warning messages as memory fills up. */
921 memory_warnings (0, malloc_warning
);
923 /* Call malloc at least once, to run malloc_initialize_hook.
924 Also call realloc and free for consistency. */
925 free (realloc (malloc (4), 4));
927 #endif /* not SYSTEM_MALLOC */
929 #if defined (MSDOS) || defined (WINDOWSNT)
930 /* We do all file input/output as binary files. When we need to translate
931 newlines, we do that manually. */
933 #endif /* MSDOS || WINDOWSNT */
936 if (!isatty (fileno (stdin
)))
937 setmode (fileno (stdin
), O_BINARY
);
938 if (!isatty (fileno (stdout
)))
941 setmode (fileno (stdout
), O_BINARY
);
945 /* Skip initial setlocale if LC_ALL is "C", as it's not needed in that case.
946 The build procedure uses this while dumping, to ensure that the
947 dumped Emacs does not have its system locale tables initialized,
948 as that might cause screwups when the dumped Emacs starts up. */
950 char *lc_all
= getenv ("LC_ALL");
951 do_initial_setlocale
= ! lc_all
|| strcmp (lc_all
, "C");
954 /* Set locale now, so that initial error messages are localized properly.
955 fixup_locale must wait until later, since it builds strings. */
956 if (do_initial_setlocale
)
957 setlocale (LC_ALL
, "");
959 inhibit_window_system
= 0;
961 /* Handle the -t switch, which specifies filename to use as terminal. */
965 if (argmatch (argv
, argc
, "-t", "--terminal", 4, &term
, &skip_args
))
970 result
= emacs_open (term
, O_RDWR
, 0);
971 if (result
< 0 || fcntl (0, F_DUPFD_CLOEXEC
, 1) < 0)
973 char *errstring
= strerror (errno
);
974 fprintf (stderr
, "%s: %s: %s\n", argv
[0], term
, errstring
);
979 fprintf (stderr
, "%s: %s: not a tty\n", argv
[0], term
);
982 fprintf (stderr
, "Using %s\n", term
);
983 #ifdef HAVE_WINDOW_SYSTEM
984 inhibit_window_system
= 1; /* -t => -nw */
991 /* Command line option --no-windows is deprecated and thus not mentioned
992 in the manual and usage information. */
993 if (argmatch (argv
, argc
, "-nw", "--no-window-system", 6, NULL
, &skip_args
)
994 || argmatch (argv
, argc
, "-nw", "--no-windows", 6, NULL
, &skip_args
))
995 inhibit_window_system
= 1;
997 /* Handle the -batch switch, which means don't do interactive display. */
999 if (argmatch (argv
, argc
, "-batch", "--batch", 5, NULL
, &skip_args
))
1002 Vundo_outer_limit
= Qnil
;
1004 if (argmatch (argv
, argc
, "-script", "--script", 3, &junk
, &skip_args
))
1006 noninteractive
= 1; /* Set batch mode. */
1007 /* Convert --script to -scriptload, un-skip it, and sort again
1008 so that it will be handled in proper sequence. */
1009 /* FIXME broken for --script=FILE - is that supposed to work? */
1010 argv
[skip_args
- 1] = (char *) "-scriptload";
1012 sort_args (argc
, argv
);
1015 /* Handle the --help option, which gives a usage message. */
1016 if (argmatch (argv
, argc
, "-help", "--help", 3, NULL
, &skip_args
))
1019 printf ("Usage: %s [OPTION-OR-FILENAME]...\n", argv
[0]);
1020 for (i
= 0; i
< ARRAYELTS (usage_message
); i
++)
1021 fputs (usage_message
[i
], stdout
);
1025 /* Make sure IS_DAEMON starts up as false. */
1028 if (argmatch (argv
, argc
, "-daemon", "--daemon", 5, NULL
, &skip_args
)
1029 || argmatch (argv
, argc
, "-daemon", "--daemon", 5, &dname_arg
, &skip_args
))
1034 /* Start as a daemon: fork a new child process which will run the
1035 rest of the initialization code, then exit.
1037 Detaching a daemon requires the following steps:
1041 - close the tty file-descriptors
1043 We only want to do the last 2 steps once the daemon is ready to
1044 serve requests, i.e. after loading .emacs (initialization).
1045 OTOH initialization may start subprocesses (e.g. ispell) and these
1046 should be run from the proper process (the one that will end up
1047 running as daemon) and with the proper "session id" in order for
1048 them to keep working after detaching, so fork and setsid need to be
1049 performed before initialization.
1051 We want to avoid exiting before the server socket is ready, so
1052 use a pipe for synchronization. The parent waits for the child
1053 to close its end of the pipe (using `daemon-initialized')
1055 if (emacs_pipe (daemon_pipe
) != 0)
1057 fprintf (stderr
, "Cannot pipe!\n");
1061 #ifndef DAEMON_MUST_EXEC
1063 fprintf (stderr
, "\nWarning: due to a long standing Gtk+ bug\nhttp://bugzilla.gnome.org/show_bug.cgi?id=85715\n\
1064 Emacs might crash when run in daemon mode and the X11 connection is unexpectedly lost.\n\
1065 Using an Emacs configured with --with-x-toolkit=lucid does not have this problem.\n");
1066 #endif /* USE_GTK */
1068 #else /* DAEMON_MUST_EXEC */
1069 if (!dname_arg
|| !strchr (dname_arg
, '\n'))
1070 f
= fork (); /* in orig */
1072 f
= 0; /* in exec'd */
1073 #endif /* !DAEMON_MUST_EXEC */
1079 /* Close unused writing end of the pipe. */
1080 emacs_close (daemon_pipe
[1]);
1082 /* Just wait for the child to close its end of the pipe. */
1085 retval
= read (daemon_pipe
[0], &buf
, 1);
1087 while (retval
== -1 && errno
== EINTR
);
1091 fprintf (stderr
, "Error reading status from child\n");
1094 else if (retval
== 0)
1096 fprintf (stderr
, "Error: server did not start correctly\n");
1100 emacs_close (daemon_pipe
[0]);
1105 emacs_perror ("fork");
1106 exit (EXIT_CANCELED
);
1109 #ifdef DAEMON_MUST_EXEC
1111 /* In orig process, forked as child, OR in exec'd. */
1112 if (!dname_arg
|| !strchr (dname_arg
, '\n'))
1113 { /* In orig, child: now exec w/special daemon name. */
1116 snprintf (fdStr
, sizeof fdStr
,
1117 "--daemon=\n%d,%d\n%s", daemon_pipe
[0],
1118 daemon_pipe
[1], dname_arg
? dname_arg
: "");
1120 if (! (0 <= fdStrlen
&& fdStrlen
< sizeof fdStr
))
1122 fprintf (stderr
, "daemon: child name too long\n");
1123 exit (EXIT_CANNOT_INVOKE
);
1126 argv
[skip_args
] = fdStr
;
1128 fcntl (daemon_pipe
[0], F_SETFD
, 0);
1129 fcntl (daemon_pipe
[1], F_SETFD
, 0);
1130 execvp (argv
[0], argv
);
1131 emacs_perror (argv
[0]);
1132 exit (errno
== ENOENT
? EXIT_ENOENT
: EXIT_CANNOT_INVOKE
);
1135 /* In exec'd: parse special dname into pipe and name info. */
1136 if (!dname_arg
|| !strchr (dname_arg
, '\n')
1137 || strlen (dname_arg
) < 1 || strlen (dname_arg
) > 70)
1139 fprintf (stderr
, "emacs daemon: daemon name absent or too long\n");
1140 exit (EXIT_CANNOT_INVOKE
);
1142 dname_arg2
[0] = '\0';
1143 sscanf (dname_arg
, "\n%d,%d\n%s", &(daemon_pipe
[0]), &(daemon_pipe
[1]),
1145 dname_arg
= *dname_arg2
? dname_arg2
: NULL
;
1146 fcntl (daemon_pipe
[1], F_SETFD
, FD_CLOEXEC
);
1148 #endif /* DAEMON_MUST_EXEC */
1151 daemon_name
= xstrdup (dname_arg
);
1152 /* Close unused reading end of the pipe. */
1153 emacs_close (daemon_pipe
[0]);
1157 fprintf (stderr
, "This platform does not support the -daemon flag.\n");
1162 #if defined HAVE_PTHREAD && !defined SYSTEM_MALLOC && !defined DOUG_LEA_MALLOC
1163 # ifndef CANNOT_DUMP
1164 /* Do not make gmalloc thread-safe when creating bootstrap-emacs, as
1165 that causes an infinite recursive loop with FreeBSD. But do make
1166 it thread-safe when creating emacs, otherwise bootstrap-emacs
1167 fails on Cygwin. See Bug#14569. */
1168 if (!noninteractive
|| initialized
)
1170 malloc_enable_thread ();
1173 init_signals (dumping
);
1175 noninteractive1
= noninteractive
;
1177 /* Perform basic initializations (not merely interning symbols). */
1181 /* scm_c_module_define (scm_c_resolve_module ("language elisp lexer"), */
1182 /* "make-lisp-string", */
1183 /* scm_c_make_gsubr ("make-lisp-string", 1, 0, 0, */
1184 /* string_from_scheme)); */
1185 (void *) scm_c_resolve_module ("language elisp spec");
1186 symbol_module
= scm_c_resolve_module ("elisp-symbols");
1187 function_module
= scm_c_resolve_module ("elisp-functions");
1188 plist_module
= scm_c_resolve_module ("elisp-plists");
1189 scm_set_current_module (scm_c_resolve_module ("guile-user"));
1192 scm_c_module_define (scm_c_resolve_module ("language elisp lexer"),
1194 scm_c_make_gsubr ("make-lisp-string", 1, 0, 0,
1195 string_from_scheme
));
1200 init_charset_once ();
1201 init_coding_once ();
1202 init_syntax_once (); /* Create standard syntax table. */
1203 init_category_once (); /* Create standard category table. */
1204 init_casetab_once (); /* Must be done before init_buffer_once. */
1205 init_buffer_once (); /* Create buffer table and some buffers. */
1206 init_minibuf_once (); /* Create list of minibuffers. */
1207 /* Must precede init_window_once. */
1209 /* Called before syms_of_fileio, because it sets up
1210 Qerror_condition. Called before other symbol-initialization
1211 functions because it sets up symbols used by defsubr. */
1214 scm_call_4 (scm_c_public_ref ("language elisp runtime", "emacs!"),
1215 SYMBOL_FUNCTION (intern ("symbol-value")),
1216 SYMBOL_FUNCTION (intern ("set")),
1217 SYMBOL_FUNCTION (intern ("boundp")),
1218 SYMBOL_FUNCTION (intern ("bind-symbol")));
1220 /* Call syms_of_xfaces before init_window_once because that
1221 function creates Vterminal_frame. Termcap frames now use
1222 faces, and the face implementation uses some symbols as
1225 /* XXX syms_of_keyboard uses some symbols in keymap.c. It would
1226 be better to arrange things not to have this dependency. */
1228 /* Call syms_of_keyboard before init_window_once because
1229 keyboard sets up symbols that include some face names that
1230 the X support will want to use. This can happen when
1231 CANNOT_DUMP is defined. */
1232 syms_of_keyboard ();
1234 syms_of_fns (); /* Before syms_of_charset which uses hashtables. */
1236 /* Before syms_of_coding to initialize Vgc_cons_threshold. */
1238 /* May call Ffuncall and so GC, thus the latter should be initialized. */
1240 /* Before syms_of_coding because it initializes Qcharsetp. */
1242 /* Before init_window_once, because it sets up the
1243 Vcoding_system_hash_table. */
1244 syms_of_coding (); /* This should be after syms_of_fileio. */
1246 init_window_once (); /* Init the window system. */
1247 #ifdef HAVE_WINDOW_SYSTEM
1248 init_fringe_once (); /* Swap bitmaps if necessary. */
1249 #endif /* HAVE_WINDOW_SYSTEM */
1254 if (do_initial_setlocale
)
1257 Vsystem_messages_locale
= Vprevious_system_messages_locale
;
1258 Vsystem_time_locale
= Vprevious_system_time_locale
;
1263 running_asynch_code
= 0;
1267 = argmatch (argv
, argc
, "-nl", "--no-loadup", 6, NULL
, &skip_args
);
1270 = argmatch (argv
, argc
, "-nsl", "--no-site-lisp", 11, NULL
, &skip_args
);
1273 ns_pool
= ns_alloc_autorelease_pool ();
1274 #ifdef NS_IMPL_GNUSTEP
1275 /* GNUstep stupidly resets our locale settings after we made them. */
1279 if (!noninteractive
)
1281 #ifdef NS_IMPL_COCOA
1282 /* Started from GUI? */
1283 /* FIXME: Do the right thing if getenv returns NULL, or if
1285 if (! inhibit_window_system
&& ! isatty (0))
1286 chdir (getenv ("HOME"));
1287 if (skip_args
< argc
)
1289 if (!strncmp (argv
[skip_args
], "-psn", 4))
1292 chdir (getenv ("HOME"));
1294 else if (skip_args
+1 < argc
&& !strncmp (argv
[skip_args
+1], "-psn", 4))
1297 chdir (getenv ("HOME"));
1302 #endif /* HAVE_NS */
1304 #ifdef HAVE_X_WINDOWS
1305 /* Stupid kludge to catch command-line display spec. We can't
1306 handle this argument entirely in window system dependent code
1307 because we don't even know which window system dependent code
1308 to run until we've recognized this argument. */
1310 char *displayname
= 0;
1311 int count_before
= skip_args
;
1313 /* Skip any number of -d options, but only use the last one. */
1316 int count_before_this
= skip_args
;
1318 if (argmatch (argv
, argc
, "-d", "--display", 3, &displayname
, &skip_args
))
1320 else if (argmatch (argv
, argc
, "-display", 0, 3, &displayname
, &skip_args
))
1325 count_before
= count_before_this
;
1328 /* If we have the form --display=NAME,
1329 convert it into -d name.
1330 This requires inserting a new element into argv. */
1331 if (displayname
&& count_before
< skip_args
)
1333 if (skip_args
== count_before
+ 1)
1335 memmove (argv
+ count_before
+ 3, argv
+ count_before
+ 2,
1336 (argc
- (count_before
+ 2)) * sizeof *argv
);
1337 argv
[count_before
+ 2] = displayname
;
1340 argv
[count_before
+ 1] = (char *) "-d";
1345 if (argmatch (argv
, argc
, "-Q", "--quick", 3, NULL
, &skip_args
)
1346 || argmatch (argv
, argc
, "-quick", 0, 2, NULL
, &skip_args
))
1350 /* Don't actually discard this arg. */
1351 skip_args
= count_before
;
1353 #else /* !HAVE_X_WINDOWS */
1356 int count_before
= skip_args
;
1358 if (argmatch (argv
, argc
, "-Q", "--quick", 3, NULL
, &skip_args
)
1359 || argmatch (argv
, argc
, "-quick", 0, 2, NULL
, &skip_args
))
1362 skip_args
= count_before
;
1366 /* argmatch must not be used after here,
1367 except when building temacs
1368 because the -d argument has not been skipped in skip_args. */
1371 /* Call early 'cause init_environment needs it. */
1373 /* Set defaults for several environment variables. */
1375 init_environment (argc
, argv
, skip_args
);
1380 #ifdef HAVE_GFILENOTIFY
1381 globals_of_gfilenotify ();
1386 #ifdef HAVE_W32NOTIFY
1387 globals_of_w32notify ();
1389 /* Initialize environment from registry settings. */
1390 init_environment (argv
);
1391 init_ntproc (dumping
); /* must precede init_editfns. */
1394 /* Initialize and GC-protect Vinitial_environment and
1395 Vprocess_environment before set_initial_environment fills them
1398 syms_of_callproc ();
1399 /* egetenv is a pretty low-level facility, which may get called in
1400 many circumstances; it seems flimsy to put off initializing it
1401 until calling init_callproc. Do not do it when dumping. */
1403 set_initial_environment ();
1405 /* AIX crashes are reported in system versions 3.2.3 and 3.2.4
1406 if this is not done. Do it after set_global_environment so that we
1407 don't pollute Vglobal_environment. */
1408 /* Setting LANG here will defeat the startup locale processing... */
1413 /* Init buffer storage and default directory of main buffer. */
1414 init_buffer (initialized
);
1416 init_callproc_1 (); /* Must precede init_cmdargs and init_sys_modes. */
1418 /* Must precede init_lread. */
1419 init_cmdargs (argc
, argv
, skip_args
, original_pwd
);
1423 /* Erase any pre-dump messages in the message log, to avoid confusion. */
1424 Lisp_Object old_log_max
;
1425 old_log_max
= Vmessage_log_max
;
1426 XSETFASTINT (Vmessage_log_max
, 0);
1427 message_dolog ("", 0, 1, 0);
1428 Vmessage_log_max
= old_log_max
;
1431 init_callproc (); /* Must follow init_cmdargs but not init_sys_modes. */
1435 /* Check to see if Emacs has been installed correctly. */
1436 check_windows_init_file ();
1439 /* Intern the names of all standard functions and variables;
1440 define standard keys. */
1444 /* The basic levels of Lisp must come first. Note that
1445 syms_of_data and some others have already been called. */
1450 syms_of_floatfns ();
1453 syms_of_bytecode ();
1455 syms_of_casefiddle ();
1457 syms_of_category ();
1459 syms_of_character ();
1466 syms_of_filelock ();
1469 /* syms_of_keymap (); */
1477 syms_of_terminal ();
1483 syms_of_textprop ();
1484 syms_of_composite ();
1487 #endif /* WINDOWSNT */
1494 #ifdef HAVE_WINDOW_SYSTEM
1497 #endif /* HAVE_WINDOW_SYSTEM */
1498 #ifdef HAVE_X_WINDOWS
1503 syms_of_xsettings ();
1510 #endif /* HAVE_X_WINDOWS */
1517 syms_of_decompress ();
1527 #endif /* HAVE_NTGUI */
1529 #if defined WINDOWSNT || defined HAVE_NTGUI
1530 syms_of_w32select ();
1537 syms_of_win16select ();
1544 syms_of_nsselect ();
1546 #endif /* HAVE_NS */
1552 #ifdef HAVE_GFILENOTIFY
1553 syms_of_gfilenotify ();
1554 #endif /* HAVE_GFILENOTIFY */
1558 #endif /* HAVE_INOTIFY */
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 init_editfns (); /* init_process_emacs uses Voperating_system_release. */
1598 init_process_emacs (); /* init_display uses add_keyboard_wait_descriptor. */
1599 init_keyboard (); /* This too must precede init_sys_modes. */
1600 if (!noninteractive
)
1601 init_display (); /* Determine terminal type. Calls init_sys_modes. */
1604 init_crit (); /* w32notify.c needs this in batch mode. */
1605 #endif /* HAVE_W32NOTIFY */
1607 #ifdef HAVE_WINDOW_SYSTEM
1609 #endif /* HAVE_WINDOW_SYSTEM */
1617 /* Handle -l loadup, args passed by Makefile. */
1618 if (argmatch (argv
, argc
, "-l", "--load", 3, &file
, &skip_args
))
1621 char file_utf8
[MAX_UTF8_PATH
];
1623 if (filename_from_ansi (file
, file_utf8
) == 0)
1626 Vtop_level
= list2 (intern_c_string ("load"),
1627 build_unibyte_string (file
));
1629 /* Unless next switch is -nl, load "loadup.el" first thing. */
1631 Vtop_level
= list2 (intern_c_string ("load"),
1632 build_string ("loadup.el"));
1639 /* If the execution TZ happens to be the same as the dump TZ,
1640 change it to some other value and then change it back,
1641 to force the underlying implementation to reload the TZ info.
1642 This is needed on implementations that load TZ info from files,
1643 since the TZ file contents may differ between dump and execution. */
1644 char *tz
= getenv ("TZ");
1645 if (tz
&& !strcmp (tz
, dump_tz
))
1655 /* Set up for profiling. This is known to work on FreeBSD,
1656 GNU/Linux and MinGW. It might work on some other systems too.
1657 Give it a try and tell us if it works on your system. To compile
1658 for profiling, use the configure option --enable-profiling. */
1659 #if defined (__FreeBSD__) || defined (GNU_LINUX) || defined (__MINGW32__)
1664 extern unsigned char etext
asm ("etext");
1670 monstartup ((uintptr_t) __executable_start
, (uintptr_t) &etext
);
1679 #ifdef LOCALTIME_CACHE
1680 /* Some versions of localtime have a bug. They cache the value of the time
1681 zone rather than looking it up every time. Since localtime() is
1682 called to bolt the undumping time into the undumped emacs, this
1683 results in localtime ignoring the TZ environment variable.
1684 This flushes the new TZ value into localtime. */
1686 #endif /* defined (LOCALTIME_CACHE) */
1688 /* Enter editor command loop. This never returns. */
1694 /* Sort the args so we can find the most important ones
1695 at the beginning of argv. */
1697 /* First, here's a table of all the standard options. */
1699 struct standard_args
1702 const char *longname
;
1707 static const struct standard_args standard_args
[] =
1709 { "-version", "--version", 150, 0 },
1710 { "-chdir", "--chdir", 130, 1 },
1711 { "-t", "--terminal", 120, 1 },
1712 { "-nw", "--no-window-system", 110, 0 },
1713 { "-nw", "--no-windows", 110, 0 },
1714 { "-batch", "--batch", 100, 0 },
1715 { "-script", "--script", 100, 1 },
1716 { "-daemon", "--daemon", 99, 0 },
1717 { "-help", "--help", 90, 0 },
1718 { "-nl", "--no-loadup", 70, 0 },
1719 { "-nsl", "--no-site-lisp", 65, 0 },
1720 /* -d must come last before the options handled in startup.el. */
1721 { "-d", "--display", 60, 1 },
1722 { "-display", 0, 60, 1 },
1723 /* Now for the options handled in `command-line' (startup.el). */
1724 /* (Note that to imply -nsl, -Q is partially handled here.) */
1725 { "-Q", "--quick", 55, 0 },
1726 { "-quick", 0, 55, 0 },
1727 { "-q", "--no-init-file", 50, 0 },
1728 { "-no-init-file", 0, 50, 0 },
1729 { "-no-site-file", "--no-site-file", 40, 0 },
1730 { "-u", "--user", 30, 1 },
1731 { "-user", 0, 30, 1 },
1732 { "-debug-init", "--debug-init", 20, 0 },
1733 { "-iconic", "--iconic", 15, 0 },
1734 { "-D", "--basic-display", 12, 0},
1735 { "-basic-display", 0, 12, 0},
1736 { "-nbc", "--no-blinking-cursor", 12, 0 },
1737 /* Now for the options handled in `command-line-1' (startup.el). */
1738 { "-nbi", "--no-bitmap-icon", 10, 0 },
1739 { "-bg", "--background-color", 10, 1 },
1740 { "-background", 0, 10, 1 },
1741 { "-fg", "--foreground-color", 10, 1 },
1742 { "-foreground", 0, 10, 1 },
1743 { "-bd", "--border-color", 10, 1 },
1744 { "-bw", "--border-width", 10, 1 },
1745 { "-ib", "--internal-border", 10, 1 },
1746 { "-ms", "--mouse-color", 10, 1 },
1747 { "-cr", "--cursor-color", 10, 1 },
1748 { "-fn", "--font", 10, 1 },
1749 { "-font", 0, 10, 1 },
1750 { "-fs", "--fullscreen", 10, 0 },
1751 { "-fw", "--fullwidth", 10, 0 },
1752 { "-fh", "--fullheight", 10, 0 },
1753 { "-mm", "--maximized", 10, 0 },
1754 { "-g", "--geometry", 10, 1 },
1755 { "-geometry", 0, 10, 1 },
1756 { "-T", "--title", 10, 1 },
1757 { "-title", 0, 10, 1 },
1758 { "-name", "--name", 10, 1 },
1759 { "-xrm", "--xrm", 10, 1 },
1760 { "-parent-id", "--parent-id", 10, 1 },
1761 { "-r", "--reverse-video", 5, 0 },
1763 { "-reverse", 0, 5, 0 },
1764 { "-hb", "--horizontal-scroll-bars", 5, 0 },
1765 { "-vb", "--vertical-scroll-bars", 5, 0 },
1766 { "-color", "--color", 5, 0},
1767 { "-no-splash", "--no-splash", 3, 0 },
1768 { "-no-desktop", "--no-desktop", 3, 0 },
1770 { "-NSAutoLaunch", 0, 5, 1 },
1771 { "-NXAutoLaunch", 0, 5, 1 },
1772 { "-_NSMachLaunch", 0, 85, 1 },
1773 { "-MachLaunch", 0, 85, 1 },
1774 { "-macosx", 0, 85, 0 },
1775 { "-NSHost", 0, 85, 1 },
1777 /* These have the same priority as ordinary file name args,
1778 so they are not reordered with respect to those. */
1779 { "-L", "--directory", 0, 1 },
1780 { "-directory", 0, 0, 1 },
1781 { "-l", "--load", 0, 1 },
1782 { "-load", 0, 0, 1 },
1783 /* This has no longname, because using --scriptload confuses sort_args,
1784 because then the --script long option seems to match twice; ie
1785 you can't have a long option which is a prefix of another long
1786 option. In any case, this is entirely an internal option. */
1787 { "-scriptload", NULL
, 0, 1 },
1788 { "-f", "--funcall", 0, 1 },
1789 { "-funcall", 0, 0, 1 },
1790 { "-eval", "--eval", 0, 1 },
1791 { "-execute", "--execute", 0, 1 },
1792 { "-find-file", "--find-file", 0, 1 },
1793 { "-visit", "--visit", 0, 1 },
1794 { "-file", "--file", 0, 1 },
1795 { "-insert", "--insert", 0, 1 },
1797 { "-NXOpen", 0, 0, 1 },
1798 { "-NXOpenTemp", 0, 0, 1 },
1799 { "-NSOpen", 0, 0, 1 },
1800 { "-NSOpenTemp", 0, 0, 1 },
1801 { "-GSFilePath", 0, 0, 1 },
1803 /* This should be processed after ordinary file name args and the like. */
1804 { "-kill", "--kill", -10, 0 },
1807 /* Reorder the elements of ARGV (assumed to have ARGC elements)
1808 so that the highest priority ones come first.
1809 Do not change the order of elements of equal priority.
1810 If an option takes an argument, keep it and its argument together.
1812 If an option that takes no argument appears more
1813 than once, eliminate all but one copy of it. */
1816 sort_args (int argc
, char **argv
)
1818 char **new = xmalloc (argc
* sizeof *new);
1819 /* For each element of argv,
1820 the corresponding element of options is:
1821 0 for an option that takes no arguments,
1822 1 for an option that takes one argument, etc.
1823 -1 for an ordinary non-option argument. */
1824 int *options
= xnmalloc_atomic (argc
, sizeof *options
);
1825 int *priority
= xnmalloc_atomic (argc
, sizeof *priority
);
1827 int incoming_used
= 1;
1831 /* Categorize all the options,
1832 and figure out which argv elts are option arguments. */
1833 for (from
= 1; from
< argc
; from
++)
1837 if (argv
[from
][0] == '-')
1841 /* If we have found "--", don't consider
1842 any more arguments as options. */
1843 if (argv
[from
][1] == '-' && argv
[from
][2] == 0)
1845 /* Leave the "--", and everything following it, at the end. */
1846 for (; from
< argc
; from
++)
1848 priority
[from
] = -100;
1854 /* Look for a match with a known old-fashioned option. */
1855 for (i
= 0; i
< ARRAYELTS (standard_args
); i
++)
1856 if (!strcmp (argv
[from
], standard_args
[i
].name
))
1858 options
[from
] = standard_args
[i
].nargs
;
1859 priority
[from
] = standard_args
[i
].priority
;
1860 if (from
+ standard_args
[i
].nargs
>= argc
)
1861 fatal ("Option `%s' requires an argument\n", argv
[from
]);
1862 from
+= standard_args
[i
].nargs
;
1866 /* Look for a match with a known long option.
1867 MATCH is -1 if no match so far, -2 if two or more matches so far,
1868 >= 0 (the table index of the match) if just one match so far. */
1869 if (argv
[from
][1] == '-')
1871 char const *equals
= strchr (argv
[from
], '=');
1873 equals
? equals
- argv
[from
] : strlen (argv
[from
]);
1877 for (i
= 0; i
< ARRAYELTS (standard_args
); i
++)
1878 if (standard_args
[i
].longname
1879 && !strncmp (argv
[from
], standard_args
[i
].longname
,
1888 /* If we found exactly one match, use that. */
1891 options
[from
] = standard_args
[match
].nargs
;
1892 priority
[from
] = standard_args
[match
].priority
;
1893 /* If --OPTION=VALUE syntax is used,
1894 this option uses just one argv element. */
1897 if (from
+ options
[from
] >= argc
)
1898 fatal ("Option `%s' requires an argument\n", argv
[from
]);
1899 from
+= options
[from
];
1901 /* FIXME When match < 0, shouldn't there be some error,
1902 or at least indication to the user that there was a
1909 /* Copy the arguments, in order of decreasing priority, to NEW. */
1911 while (incoming_used
< argc
)
1914 int best_priority
= -9999;
1916 /* Find the highest priority remaining option.
1917 If several have equal priority, take the first of them. */
1918 for (from
= 1; from
< argc
; from
++)
1920 if (argv
[from
] != 0 && priority
[from
] > best_priority
)
1922 best_priority
= priority
[from
];
1925 /* Skip option arguments--they are tied to the options. */
1926 if (options
[from
] > 0)
1927 from
+= options
[from
];
1933 /* Copy the highest priority remaining option, with its args, to NEW.
1934 Unless it is a duplicate of the previous one. */
1935 if (! (options
[best
] == 0
1936 && ! strcmp (new[to
- 1], argv
[best
])))
1938 new[to
++] = argv
[best
];
1939 for (i
= 0; i
< options
[best
]; i
++)
1940 new[to
++] = argv
[best
+ i
+ 1];
1943 incoming_used
+= 1 + (options
[best
] > 0 ? options
[best
] : 0);
1945 /* Clear out this option in ARGV. */
1947 for (i
= 0; i
< options
[best
]; i
++)
1948 argv
[best
+ i
+ 1] = 0;
1951 /* If duplicate options were deleted, fill up extra space with null ptrs. */
1955 memcpy (argv
, new, sizeof (char *) * argc
);
1962 DEFUN ("kill-emacs", Fkill_emacs
, Skill_emacs
, 0, 1, "P",
1963 doc
: /* Exit the Emacs job and kill it.
1964 If ARG is an integer, return ARG as the exit program code.
1965 If ARG is a string, stuff it as keyboard input.
1967 This function is called upon receipt of the signals SIGTERM
1968 or SIGHUP, and upon SIGINT in batch mode.
1970 The value of `kill-emacs-hook', if not void,
1971 is a list of functions (of no args),
1972 all of which are called before Emacs is actually killed. */)
1975 struct gcpro gcpro1
;
1983 /* Fsignal calls emacs_abort () if it sees that waiting_for_input is
1985 waiting_for_input
= 0;
1986 Frun_hooks (1, &Qkill_emacs_hook
);
1989 #ifdef HAVE_X_WINDOWS
1990 /* Transfer any clipboards we own to the clipboard manager. */
1991 x_clipboard_manager_save_all ();
1994 shut_down_emacs (0, STRINGP (arg
) ? arg
: Qnil
);
1997 ns_release_autorelease_pool (ns_pool
);
2000 /* If we have an auto-save list file,
2001 kill it because we are exiting Emacs deliberately (not crashing).
2002 Do it after shut_down_emacs, which does an auto-save. */
2003 if (STRINGP (Vauto_save_list_file_name
))
2005 Lisp_Object listfile
;
2006 listfile
= Fexpand_file_name (Vauto_save_list_file_name
, Qnil
);
2007 unlink (SSDATA (listfile
));
2011 exit_code
= (XINT (arg
) < 0
2012 ? XINT (arg
) | INT_MIN
2013 : XINT (arg
) & INT_MAX
);
2015 exit_code
= EXIT_SUCCESS
;
2020 /* Perform an orderly shutdown of Emacs. Autosave any modified
2021 buffers, kill any child processes, clean up the terminal modes (if
2022 we're in the foreground), and other stuff like that. Don't perform
2023 any redisplay; this may be called when Emacs is shutting down in
2024 the background, or after its X connection has died.
2026 If SIG is a signal number, print a message for it.
2028 This is called by fatal signal handlers, X protocol error handlers,
2032 shut_down_emacs (int sig
, Lisp_Object stuff
)
2034 /* Prevent running of hooks from now on. */
2037 /* Don't update display from now on. */
2038 Vinhibit_redisplay
= Qt
;
2040 /* If we are controlling the terminal, reset terminal modes. */
2043 pid_t pgrp
= getpgrp ();
2044 pid_t tpgrp
= tcgetpgrp (0);
2045 if ((tpgrp
!= -1) && tpgrp
== pgrp
)
2047 reset_all_sys_modes ();
2048 if (sig
&& sig
!= SIGTERM
)
2050 static char const format
[] = "Fatal error %d: ";
2051 char buf
[sizeof format
- 2 + INT_STRLEN_BOUND (int)];
2052 int buflen
= sprintf (buf
, format
, sig
);
2053 char const *sig_desc
= safe_strsignal (sig
);
2054 emacs_write (STDERR_FILENO
, buf
, buflen
);
2055 emacs_write (STDERR_FILENO
, sig_desc
, strlen (sig_desc
));
2061 reset_all_sys_modes ();
2064 stuff_buffered_input (stuff
);
2066 inhibit_sentinels
= 1;
2067 kill_buffer_processes (Qnil
);
2068 Fdo_auto_save (Qt
, Qnil
);
2070 unlock_all_files ();
2072 /* There is a tendency for a SIGIO signal to arrive within exit,
2073 and cause a SIGHUP because the input descriptor is already closed. */
2076 /* Do this only if terminating normally, we want glyph matrices
2077 etc. in a core dump. */
2078 if (sig
== 0 || sig
== SIGTERM
)
2080 check_glyph_memory ();
2081 check_message_stack ();
2089 ns_term_shutdown (sig
);
2093 xml_cleanup_parser ();
2107 DEFUN ("dump-emacs", Fdump_emacs
, Sdump_emacs
, 2, 2, 0,
2108 doc
: /* Dump current state of Emacs into executable file FILENAME.
2109 Take symbols from SYMFILE (presumably the file you executed to run Emacs).
2110 This is used in the file `loadup.el' when building Emacs.
2112 You must run Emacs in batch mode in order to dump it. */)
2113 (Lisp_Object filename
, Lisp_Object symfile
)
2121 if (! noninteractive
)
2122 error ("Dumping Emacs works only in batch mode");
2125 error ("Emacs can be dumped only once");
2129 /* Warn if the gap between BSS end and heap start is larger than this. */
2130 # define MAX_HEAP_BSS_DIFF (1024*1024)
2132 if (heap_bss_diff
> MAX_HEAP_BSS_DIFF
)
2134 fprintf (stderr
, "**************************************************\n");
2135 fprintf (stderr
, "Warning: Your system has a gap between BSS and the\n");
2136 fprintf (stderr
, "heap (%"pMu
" bytes). This usually means that exec-shield\n",
2138 fprintf (stderr
, "or something similar is in effect. The dump may\n");
2139 fprintf (stderr
, "fail because of this. See the section about\n");
2140 fprintf (stderr
, "exec-shield in etc/PROBLEMS for more information.\n");
2141 fprintf (stderr
, "**************************************************\n");
2143 #endif /* GNU_LINUX */
2145 /* Bind `command-line-processed' to nil before dumping,
2146 so that the dumped Emacs will process its command line
2147 and set up to work with X windows if appropriate. */
2148 symbol
= intern ("command-line-processed");
2149 specbind (symbol
, Qnil
);
2151 CHECK_STRING (filename
);
2152 filename
= Fexpand_file_name (filename
, Qnil
);
2153 filename
= ENCODE_FILE (filename
);
2154 if (!NILP (symfile
))
2156 CHECK_STRING (symfile
);
2157 if (SCHARS (symfile
))
2159 symfile
= Fexpand_file_name (symfile
, Qnil
);
2160 symfile
= ENCODE_FILE (symfile
);
2165 Vpurify_flag
= Qnil
;
2168 set_time_zone_rule (dump_tz
);
2169 #ifndef LOCALTIME_CACHE
2170 /* Force a tz reload, since set_time_zone_rule doesn't. */
2176 /* Tell malloc where start of impure now is. */
2177 /* Also arrange for warnings when nearly out of space. */
2178 #ifndef SYSTEM_MALLOC
2180 /* On Windows, this was done before dumping, and that once suffices.
2181 Meanwhile, my_edata is not valid on Windows. */
2183 extern char my_edata
[];
2184 memory_warnings (my_edata
, malloc_warning
);
2186 #endif /* not WINDOWSNT */
2187 #endif /* not SYSTEM_MALLOC */
2188 #ifdef DOUG_LEA_MALLOC
2189 malloc_state_ptr
= malloc_get_state ();
2192 unexec (SSDATA (filename
), !NILP (symfile
) ? SSDATA (symfile
) : 0);
2194 #ifdef DOUG_LEA_MALLOC
2195 free (malloc_state_ptr
);
2199 Vlibrary_cache
= Qnil
;
2201 #ifdef HAVE_WINDOW_SYSTEM
2202 reset_image_types ();
2211 #endif /* not CANNOT_DUMP */
2214 /* Recover from setlocale (LC_ALL, ""). */
2218 /* The Emacs Lisp reader needs LC_NUMERIC to be "C",
2219 so that numbers are read and printed properly for Emacs Lisp. */
2220 setlocale (LC_NUMERIC
, "C");
2223 /* Set system locale CATEGORY, with previous locale *PLOCALE, to
2226 synchronize_locale (int category
, Lisp_Object
*plocale
, Lisp_Object desired_locale
)
2228 if (! EQ (*plocale
, desired_locale
))
2230 *plocale
= desired_locale
;
2231 setlocale (category
, (STRINGP (desired_locale
)
2232 ? SSDATA (desired_locale
)
2237 /* Set system time locale to match Vsystem_time_locale, if possible. */
2239 synchronize_system_time_locale (void)
2241 synchronize_locale (LC_TIME
, &Vprevious_system_time_locale
,
2242 Vsystem_time_locale
);
2245 /* Set system messages locale to match Vsystem_messages_locale, if
2248 synchronize_system_messages_locale (void)
2251 synchronize_locale (LC_MESSAGES
, &Vprevious_system_messages_locale
,
2252 Vsystem_messages_locale
);
2255 #endif /* HAVE_SETLOCALE */
2259 decode_env_path (const char *evarname
, const char *defalt
, bool empty
)
2261 const char *path
, *p
;
2262 Lisp_Object lpath
, element
, tem
;
2263 /* Default is to use "." for empty path elements.
2264 But if argument EMPTY is true, use nil instead. */
2265 Lisp_Object empty_element
= empty
? Qnil
: build_string (".");
2268 static const char *emacs_dir_env
= "%emacs_dir%/";
2269 const size_t emacs_dir_len
= strlen (emacs_dir_env
);
2270 const char *edir
= egetenv ("emacs_dir");
2271 char emacs_dir
[MAX_UTF8_PATH
];
2273 /* egetenv looks in process-environment, which holds the variables
2274 in their original system-locale encoding. We need emacs_dir to
2277 filename_from_ansi (edir
, emacs_dir
);
2280 /* It's okay to use getenv here, because this function is only used
2281 to initialize variables when Emacs starts up, and isn't called
2284 path
= getenv (evarname
);
2295 /* Ensure values from the environment use the proper directory separator. */
2301 char *path_utf8
, *q
, *d
;
2304 /* Convert each element of PATH to UTF-8. */
2305 p
= path_copy
= alloca (strlen (path
) + 1);
2306 strcpy (path_copy
, path
);
2307 d
= path_utf8
= alloca (4 * strlen (path
) + 1);
2310 q
= _mbschr (p
, SEPCHAR
);
2313 cnv_result
= filename_from_ansi (p
, d
);
2318 /* If conversion of this PATH elements fails, make sure
2319 destination pointer will stay put, thus effectively
2320 ignoring the offending element. */
2321 if (cnv_result
== 0)
2327 else if (cnv_result
!= 0 && d
> path_utf8
)
2328 d
[-1] = '\0'; /* remove last semi-colon and null-terminate PATH */
2330 path_copy
= path_utf8
;
2332 path_copy
= alloca (strlen (path
) + 1);
2333 strcpy (path_copy
, path
);
2335 dostounix_filename (path_copy
);
2342 p
= strchr (path
, SEPCHAR
);
2344 p
= path
+ strlen (path
);
2345 element
= (p
- path
? make_unibyte_string (path
, p
- path
)
2347 if (! NILP (element
))
2350 /* Relative file names in the default path are interpreted as
2351 being relative to $emacs_dir. */
2352 if (edir
&& defaulted
2353 && strncmp (path
, emacs_dir_env
, emacs_dir_len
) == 0)
2354 element
= Fexpand_file_name (Fsubstring
2356 make_number (emacs_dir_len
),
2358 build_unibyte_string (emacs_dir
));
2361 /* Add /: to the front of the name
2362 if it would otherwise be treated as magic. */
2363 tem
= Ffind_file_name_handler (element
, Qt
);
2365 /* However, if the handler says "I'm safe",
2366 don't bother adding /:. */
2370 prop
= Fget (tem
, intern ("safe-magic"));
2376 element
= concat2 (build_string ("/:"), element
);
2377 } /* !NILP (element) */
2379 lpath
= Fcons (element
, lpath
);
2385 return Fnreverse (lpath
);
2388 DEFUN ("daemonp", Fdaemonp
, Sdaemonp
, 0, 0, 0,
2389 doc
: /* Return non-nil if the current emacs process is a daemon.
2390 If the daemon was given a name argument, return that name. */)
2395 return build_string (daemon_name
);
2402 DEFUN ("daemon-initialized", Fdaemon_initialized
, Sdaemon_initialized
, 0, 0, 0,
2403 doc
: /* Mark the Emacs daemon as being initialized.
2404 This finishes the daemonization process by doing the other half of detaching
2405 from the parent process and its tty file descriptors. */)
2412 error ("This function can only be called if emacs is run as a daemon");
2414 if (daemon_pipe
[1] < 0)
2415 error ("The daemon has already been initialized");
2417 if (NILP (Vafter_init_time
))
2418 error ("This function can only be called after loading the init files");
2420 /* Get rid of stdin, stdout and stderr. */
2421 nfd
= emacs_open ("/dev/null", O_RDWR
, 0);
2423 err
|= dup2 (nfd
, 0) < 0;
2424 err
|= dup2 (nfd
, 1) < 0;
2425 err
|= dup2 (nfd
, 2) < 0;
2426 err
|= emacs_close (nfd
) != 0;
2428 /* Closing the pipe will notify the parent that it can exit.
2429 FIXME: In case some other process inherited the pipe, closing it here
2430 won't notify the parent because it's still open elsewhere, so we
2431 additionally send a byte, just to make sure the parent really exits.
2432 Instead, we should probably close the pipe in start-process and
2433 call-process to make sure the pipe is never inherited by
2435 err
|= write (daemon_pipe
[1], "\n", 1) < 0;
2436 err
|= emacs_close (daemon_pipe
[1]) != 0;
2437 /* Set it to an invalid value so we know we've already run this function. */
2438 daemon_pipe
[1] = -1;
2441 error ("I/O error during daemon initialization");
2446 syms_of_emacs (void)
2450 DEFSYM (Qfile_name_handler_alist
, "file-name-handler-alist");
2451 DEFSYM (Qrisky_local_variable
, "risky-local-variable");
2452 DEFSYM (Qkill_emacs
, "kill-emacs");
2453 DEFSYM (Qkill_emacs_hook
, "kill-emacs-hook");
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 (and config.nt) for the possible SYSTEM_TYPEs. */
2474 DEFVAR_LISP ("system-configuration", Vsystem_configuration
,
2475 doc
: /* Value is string indicating configuration Emacs was built for.
2476 On MS-Windows, the value reflects the OS flavor and version on which
2477 Emacs is running. */);
2478 Vsystem_configuration
= build_string (EMACS_CONFIGURATION
);
2480 DEFVAR_LISP ("system-configuration-options", Vsystem_configuration_options
,
2481 doc
: /* String containing the configuration options Emacs was built with. */);
2482 Vsystem_configuration_options
= build_string (EMACS_CONFIG_OPTIONS
);
2484 DEFVAR_LISP ("system-configuration-features", Vsystem_configuration_features
,
2485 doc
: /* String listing some of the main features this Emacs was compiled with.
2486 An element of the form \"FOO\" generally means that HAVE_FOO was
2487 defined during the build. */);
2488 Vsystem_configuration_features
= build_string (EMACS_CONFIG_FEATURES
);
2490 DEFVAR_BOOL ("noninteractive", noninteractive1
,
2491 doc
: /* Non-nil means Emacs is running without interactive terminal. */);
2493 DEFVAR_LISP ("kill-emacs-hook", Vkill_emacs_hook
,
2494 doc
: /* Hook run when `kill-emacs' is called.
2495 Since `kill-emacs' may be invoked when the terminal is disconnected (or
2496 in other similar situations), functions placed on this hook should not
2497 expect to be able to interact with the user. To ask for confirmation,
2498 see `kill-emacs-query-functions' instead.
2500 Before Emacs 24.1, the hook was not run in batch mode, i.e., if
2501 `noninteractive' was non-nil. */);
2502 Vkill_emacs_hook
= Qnil
;
2504 DEFVAR_LISP ("path-separator", Vpath_separator
,
2505 doc
: /* String containing the character that separates directories in
2506 search paths, such as PATH and other similar environment variables. */);
2509 Vpath_separator
= make_string (&c
, 1);
2512 DEFVAR_LISP ("invocation-name", Vinvocation_name
,
2513 doc
: /* The program name that was used to run Emacs.
2514 Any directory names are omitted. */);
2516 DEFVAR_LISP ("invocation-directory", Vinvocation_directory
,
2517 doc
: /* The directory in which the Emacs executable was found, to run it.
2518 The value is nil if that directory's name is not known. */);
2520 DEFVAR_LISP ("installation-directory", Vinstallation_directory
,
2521 doc
: /* A directory within which to look for the `lib-src' and `etc' directories.
2522 In an installed Emacs, this is normally nil. It is non-nil if
2523 both `lib-src' (on MS-DOS, `info') and `etc' directories are found
2524 within the variable `invocation-directory' or its parent. For example,
2525 this is the case when running an uninstalled Emacs executable from its
2526 build directory. */);
2527 Vinstallation_directory
= Qnil
;
2529 DEFVAR_LISP ("system-messages-locale", Vsystem_messages_locale
,
2530 doc
: /* System locale for messages. */);
2531 Vsystem_messages_locale
= Qnil
;
2533 DEFVAR_LISP ("previous-system-messages-locale",
2534 Vprevious_system_messages_locale
,
2535 doc
: /* Most recently used system locale for messages. */);
2536 Vprevious_system_messages_locale
= Qnil
;
2538 DEFVAR_LISP ("system-time-locale", Vsystem_time_locale
,
2539 doc
: /* System locale for time. */);
2540 Vsystem_time_locale
= Qnil
;
2542 DEFVAR_LISP ("previous-system-time-locale", Vprevious_system_time_locale
,
2543 doc
: /* Most recently used system locale for time. */);
2544 Vprevious_system_time_locale
= Qnil
;
2546 DEFVAR_LISP ("before-init-time", Vbefore_init_time
,
2547 doc
: /* Value of `current-time' before Emacs begins initialization. */);
2548 Vbefore_init_time
= Qnil
;
2550 DEFVAR_LISP ("after-init-time", Vafter_init_time
,
2551 doc
: /* Value of `current-time' after loading the init files.
2552 This is nil during initialization. */);
2553 Vafter_init_time
= Qnil
;
2555 DEFVAR_BOOL ("inhibit-x-resources", inhibit_x_resources
,
2556 doc
: /* If non-nil, X resources, Windows Registry settings, and NS defaults are not used. */);
2557 inhibit_x_resources
= 0;
2559 DEFVAR_LISP ("emacs-copyright", Vemacs_copyright
,
2560 doc
: /* Short copyright string for this version of Emacs. */);
2561 Vemacs_copyright
= build_string (emacs_copyright
);
2563 DEFVAR_LISP ("emacs-version", Vemacs_version
,
2564 doc
: /* Version numbers of this version of Emacs. */);
2565 Vemacs_version
= build_string (emacs_version
);
2567 DEFVAR_LISP ("report-emacs-bug-address", Vreport_emacs_bug_address
,
2568 doc
: /* Address of mailing list for GNU Emacs bugs. */);
2569 Vreport_emacs_bug_address
= build_string (emacs_bugreport
);
2571 DEFVAR_LISP ("dynamic-library-alist", Vdynamic_library_alist
,
2572 doc
: /* Alist of dynamic libraries vs external files implementing them.
2573 Each element is a list (LIBRARY FILE...), where the car is a symbol
2574 representing a supported external library, and the rest are strings giving
2575 alternate filenames for that library.
2577 Emacs tries to load the library from the files in the order they appear on
2578 the list; if none is loaded, the running session of Emacs won't have access
2581 Note that image types `pbm' and `xbm' do not need entries in this variable
2582 because they do not depend on external libraries and are always available.
2584 Also note that this is not a generic facility for accessing external
2585 libraries; only those already known by Emacs will be loaded. */);
2586 Vdynamic_library_alist
= Qnil
;
2587 Fput (intern_c_string ("dynamic-library-alist"), Qrisky_local_variable
, Qt
);
2590 Vlibrary_cache
= Qnil
;
2591 staticpro (&Vlibrary_cache
);