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"));
1193 scm_c_module_define (scm_c_resolve_module ("language elisp runtime"),
1195 scm_c_make_gsubr ("make-lisp-string", 1, 0, 0,
1196 string_from_scheme
));
1197 scm_c_module_define (scm_c_resolve_module ("language elisp runtime"),
1199 scm_c_make_gsubr ("stringp", 1, 0, 0, Fstringp
));
1205 init_charset_once ();
1206 init_coding_once ();
1207 init_syntax_once (); /* Create standard syntax table. */
1208 init_category_once (); /* Create standard category table. */
1209 init_casetab_once (); /* Must be done before init_buffer_once. */
1210 init_buffer_once (); /* Create buffer table and some buffers. */
1211 init_minibuf_once (); /* Create list of minibuffers. */
1212 /* Must precede init_window_once. */
1214 /* Called before syms_of_fileio, because it sets up
1215 Qerror_condition. Called before other symbol-initialization
1216 functions because it sets up symbols used by defsubr. */
1219 scm_call_4 (scm_c_public_ref ("language elisp runtime", "emacs!"),
1220 SYMBOL_FUNCTION (intern ("symbol-value")),
1221 SYMBOL_FUNCTION (intern ("set")),
1222 SYMBOL_FUNCTION (intern ("boundp")),
1223 SYMBOL_FUNCTION (intern ("bind-symbol")));
1225 /* Call syms_of_xfaces before init_window_once because that
1226 function creates Vterminal_frame. Termcap frames now use
1227 faces, and the face implementation uses some symbols as
1230 /* XXX syms_of_keyboard uses some symbols in keymap.c. It would
1231 be better to arrange things not to have this dependency. */
1233 /* Call syms_of_keyboard before init_window_once because
1234 keyboard sets up symbols that include some face names that
1235 the X support will want to use. This can happen when
1236 CANNOT_DUMP is defined. */
1237 syms_of_keyboard ();
1239 syms_of_fns (); /* Before syms_of_charset which uses hashtables. */
1241 /* Before syms_of_coding to initialize Vgc_cons_threshold. */
1243 /* May call Ffuncall and so GC, thus the latter should be initialized. */
1245 /* Before syms_of_coding because it initializes Qcharsetp. */
1247 /* Before init_window_once, because it sets up the
1248 Vcoding_system_hash_table. */
1249 syms_of_coding (); /* This should be after syms_of_fileio. */
1251 init_window_once (); /* Init the window system. */
1252 #ifdef HAVE_WINDOW_SYSTEM
1253 init_fringe_once (); /* Swap bitmaps if necessary. */
1254 #endif /* HAVE_WINDOW_SYSTEM */
1259 if (do_initial_setlocale
)
1262 Vsystem_messages_locale
= Vprevious_system_messages_locale
;
1263 Vsystem_time_locale
= Vprevious_system_time_locale
;
1268 running_asynch_code
= 0;
1272 = argmatch (argv
, argc
, "-nl", "--no-loadup", 6, NULL
, &skip_args
);
1275 = argmatch (argv
, argc
, "-nsl", "--no-site-lisp", 11, NULL
, &skip_args
);
1278 ns_pool
= ns_alloc_autorelease_pool ();
1279 #ifdef NS_IMPL_GNUSTEP
1280 /* GNUstep stupidly resets our locale settings after we made them. */
1284 if (!noninteractive
)
1286 #ifdef NS_IMPL_COCOA
1287 /* Started from GUI? */
1288 /* FIXME: Do the right thing if getenv returns NULL, or if
1290 if (! inhibit_window_system
&& ! isatty (0))
1291 chdir (getenv ("HOME"));
1292 if (skip_args
< argc
)
1294 if (!strncmp (argv
[skip_args
], "-psn", 4))
1297 chdir (getenv ("HOME"));
1299 else if (skip_args
+1 < argc
&& !strncmp (argv
[skip_args
+1], "-psn", 4))
1302 chdir (getenv ("HOME"));
1307 #endif /* HAVE_NS */
1309 #ifdef HAVE_X_WINDOWS
1310 /* Stupid kludge to catch command-line display spec. We can't
1311 handle this argument entirely in window system dependent code
1312 because we don't even know which window system dependent code
1313 to run until we've recognized this argument. */
1315 char *displayname
= 0;
1316 int count_before
= skip_args
;
1318 /* Skip any number of -d options, but only use the last one. */
1321 int count_before_this
= skip_args
;
1323 if (argmatch (argv
, argc
, "-d", "--display", 3, &displayname
, &skip_args
))
1325 else if (argmatch (argv
, argc
, "-display", 0, 3, &displayname
, &skip_args
))
1330 count_before
= count_before_this
;
1333 /* If we have the form --display=NAME,
1334 convert it into -d name.
1335 This requires inserting a new element into argv. */
1336 if (displayname
&& count_before
< skip_args
)
1338 if (skip_args
== count_before
+ 1)
1340 memmove (argv
+ count_before
+ 3, argv
+ count_before
+ 2,
1341 (argc
- (count_before
+ 2)) * sizeof *argv
);
1342 argv
[count_before
+ 2] = displayname
;
1345 argv
[count_before
+ 1] = (char *) "-d";
1350 if (argmatch (argv
, argc
, "-Q", "--quick", 3, NULL
, &skip_args
)
1351 || argmatch (argv
, argc
, "-quick", 0, 2, NULL
, &skip_args
))
1355 /* Don't actually discard this arg. */
1356 skip_args
= count_before
;
1358 #else /* !HAVE_X_WINDOWS */
1361 int count_before
= skip_args
;
1363 if (argmatch (argv
, argc
, "-Q", "--quick", 3, NULL
, &skip_args
)
1364 || argmatch (argv
, argc
, "-quick", 0, 2, NULL
, &skip_args
))
1367 skip_args
= count_before
;
1371 /* argmatch must not be used after here,
1372 except when building temacs
1373 because the -d argument has not been skipped in skip_args. */
1376 /* Call early 'cause init_environment needs it. */
1378 /* Set defaults for several environment variables. */
1380 init_environment (argc
, argv
, skip_args
);
1385 #ifdef HAVE_GFILENOTIFY
1386 globals_of_gfilenotify ();
1391 #ifdef HAVE_W32NOTIFY
1392 globals_of_w32notify ();
1394 /* Initialize environment from registry settings. */
1395 init_environment (argv
);
1396 init_ntproc (dumping
); /* must precede init_editfns. */
1399 /* Initialize and GC-protect Vinitial_environment and
1400 Vprocess_environment before set_initial_environment fills them
1403 syms_of_callproc ();
1404 /* egetenv is a pretty low-level facility, which may get called in
1405 many circumstances; it seems flimsy to put off initializing it
1406 until calling init_callproc. Do not do it when dumping. */
1408 set_initial_environment ();
1410 /* AIX crashes are reported in system versions 3.2.3 and 3.2.4
1411 if this is not done. Do it after set_global_environment so that we
1412 don't pollute Vglobal_environment. */
1413 /* Setting LANG here will defeat the startup locale processing... */
1418 /* Init buffer storage and default directory of main buffer. */
1419 init_buffer (initialized
);
1421 init_callproc_1 (); /* Must precede init_cmdargs and init_sys_modes. */
1423 /* Must precede init_lread. */
1424 init_cmdargs (argc
, argv
, skip_args
, original_pwd
);
1428 /* Erase any pre-dump messages in the message log, to avoid confusion. */
1429 Lisp_Object old_log_max
;
1430 old_log_max
= Vmessage_log_max
;
1431 XSETFASTINT (Vmessage_log_max
, 0);
1432 message_dolog ("", 0, 1, 0);
1433 Vmessage_log_max
= old_log_max
;
1436 init_callproc (); /* Must follow init_cmdargs but not init_sys_modes. */
1440 /* Check to see if Emacs has been installed correctly. */
1441 check_windows_init_file ();
1444 /* Intern the names of all standard functions and variables;
1445 define standard keys. */
1449 /* The basic levels of Lisp must come first. Note that
1450 syms_of_data and some others have already been called. */
1455 syms_of_floatfns ();
1459 syms_of_casefiddle ();
1461 syms_of_category ();
1463 syms_of_character ();
1470 syms_of_filelock ();
1473 /* syms_of_keymap (); */
1481 syms_of_terminal ();
1487 syms_of_textprop ();
1488 syms_of_composite ();
1491 #endif /* WINDOWSNT */
1498 #ifdef HAVE_WINDOW_SYSTEM
1501 #endif /* HAVE_WINDOW_SYSTEM */
1502 #ifdef HAVE_X_WINDOWS
1507 syms_of_xsettings ();
1514 #endif /* HAVE_X_WINDOWS */
1521 syms_of_decompress ();
1531 #endif /* HAVE_NTGUI */
1533 #if defined WINDOWSNT || defined HAVE_NTGUI
1534 syms_of_w32select ();
1541 syms_of_win16select ();
1548 syms_of_nsselect ();
1550 #endif /* HAVE_NS */
1556 #ifdef HAVE_GFILENOTIFY
1557 syms_of_gfilenotify ();
1558 #endif /* HAVE_GFILENOTIFY */
1562 #endif /* HAVE_INOTIFY */
1565 syms_of_dbusbind ();
1566 #endif /* HAVE_DBUS */
1570 #ifdef HAVE_W32NOTIFY
1571 syms_of_w32notify ();
1572 #endif /* HAVE_W32NOTIFY */
1573 #endif /* WINDOWSNT */
1575 keys_of_casefiddle ();
1578 keys_of_keyboard ();
1584 /* Initialization that must be done even if the global variable
1585 initialized is non zero. */
1587 globals_of_w32font ();
1588 globals_of_w32fns ();
1589 globals_of_w32menu ();
1590 #endif /* HAVE_NTGUI */
1592 #if defined WINDOWSNT || defined HAVE_NTGUI
1593 globals_of_w32select ();
1599 init_editfns (); /* init_process_emacs uses Voperating_system_release. */
1600 init_process_emacs (); /* init_display uses add_keyboard_wait_descriptor. */
1601 init_keyboard (); /* This too must precede init_sys_modes. */
1602 if (!noninteractive
)
1603 init_display (); /* Determine terminal type. Calls init_sys_modes. */
1606 init_crit (); /* w32notify.c needs this in batch mode. */
1607 #endif /* HAVE_W32NOTIFY */
1609 #ifdef HAVE_WINDOW_SYSTEM
1611 #endif /* HAVE_WINDOW_SYSTEM */
1619 /* Handle -l loadup, args passed by Makefile. */
1620 if (argmatch (argv
, argc
, "-l", "--load", 3, &file
, &skip_args
))
1623 char file_utf8
[MAX_UTF8_PATH
];
1625 if (filename_from_ansi (file
, file_utf8
) == 0)
1628 Vtop_level
= list2 (intern_c_string ("load"),
1629 build_unibyte_string (file
));
1631 /* Unless next switch is -nl, load "loadup.el" first thing. */
1633 Vtop_level
= list2 (intern_c_string ("load"),
1634 build_string ("loadup.el"));
1641 /* If the execution TZ happens to be the same as the dump TZ,
1642 change it to some other value and then change it back,
1643 to force the underlying implementation to reload the TZ info.
1644 This is needed on implementations that load TZ info from files,
1645 since the TZ file contents may differ between dump and execution. */
1646 char *tz
= getenv ("TZ");
1647 if (tz
&& !strcmp (tz
, dump_tz
))
1657 /* Set up for profiling. This is known to work on FreeBSD,
1658 GNU/Linux and MinGW. It might work on some other systems too.
1659 Give it a try and tell us if it works on your system. To compile
1660 for profiling, use the configure option --enable-profiling. */
1661 #if defined (__FreeBSD__) || defined (GNU_LINUX) || defined (__MINGW32__)
1666 extern unsigned char etext
asm ("etext");
1672 monstartup ((uintptr_t) __executable_start
, (uintptr_t) &etext
);
1681 #ifdef LOCALTIME_CACHE
1682 /* Some versions of localtime have a bug. They cache the value of the time
1683 zone rather than looking it up every time. Since localtime() is
1684 called to bolt the undumping time into the undumped emacs, this
1685 results in localtime ignoring the TZ environment variable.
1686 This flushes the new TZ value into localtime. */
1688 #endif /* defined (LOCALTIME_CACHE) */
1690 /* Enter editor command loop. This never returns. */
1696 /* Sort the args so we can find the most important ones
1697 at the beginning of argv. */
1699 /* First, here's a table of all the standard options. */
1701 struct standard_args
1704 const char *longname
;
1709 static const struct standard_args standard_args
[] =
1711 { "-version", "--version", 150, 0 },
1712 { "-chdir", "--chdir", 130, 1 },
1713 { "-t", "--terminal", 120, 1 },
1714 { "-nw", "--no-window-system", 110, 0 },
1715 { "-nw", "--no-windows", 110, 0 },
1716 { "-batch", "--batch", 100, 0 },
1717 { "-script", "--script", 100, 1 },
1718 { "-daemon", "--daemon", 99, 0 },
1719 { "-help", "--help", 90, 0 },
1720 { "-nl", "--no-loadup", 70, 0 },
1721 { "-nsl", "--no-site-lisp", 65, 0 },
1722 /* -d must come last before the options handled in startup.el. */
1723 { "-d", "--display", 60, 1 },
1724 { "-display", 0, 60, 1 },
1725 /* Now for the options handled in `command-line' (startup.el). */
1726 /* (Note that to imply -nsl, -Q is partially handled here.) */
1727 { "-Q", "--quick", 55, 0 },
1728 { "-quick", 0, 55, 0 },
1729 { "-q", "--no-init-file", 50, 0 },
1730 { "-no-init-file", 0, 50, 0 },
1731 { "-no-site-file", "--no-site-file", 40, 0 },
1732 { "-u", "--user", 30, 1 },
1733 { "-user", 0, 30, 1 },
1734 { "-debug-init", "--debug-init", 20, 0 },
1735 { "-iconic", "--iconic", 15, 0 },
1736 { "-D", "--basic-display", 12, 0},
1737 { "-basic-display", 0, 12, 0},
1738 { "-nbc", "--no-blinking-cursor", 12, 0 },
1739 /* Now for the options handled in `command-line-1' (startup.el). */
1740 { "-nbi", "--no-bitmap-icon", 10, 0 },
1741 { "-bg", "--background-color", 10, 1 },
1742 { "-background", 0, 10, 1 },
1743 { "-fg", "--foreground-color", 10, 1 },
1744 { "-foreground", 0, 10, 1 },
1745 { "-bd", "--border-color", 10, 1 },
1746 { "-bw", "--border-width", 10, 1 },
1747 { "-ib", "--internal-border", 10, 1 },
1748 { "-ms", "--mouse-color", 10, 1 },
1749 { "-cr", "--cursor-color", 10, 1 },
1750 { "-fn", "--font", 10, 1 },
1751 { "-font", 0, 10, 1 },
1752 { "-fs", "--fullscreen", 10, 0 },
1753 { "-fw", "--fullwidth", 10, 0 },
1754 { "-fh", "--fullheight", 10, 0 },
1755 { "-mm", "--maximized", 10, 0 },
1756 { "-g", "--geometry", 10, 1 },
1757 { "-geometry", 0, 10, 1 },
1758 { "-T", "--title", 10, 1 },
1759 { "-title", 0, 10, 1 },
1760 { "-name", "--name", 10, 1 },
1761 { "-xrm", "--xrm", 10, 1 },
1762 { "-parent-id", "--parent-id", 10, 1 },
1763 { "-r", "--reverse-video", 5, 0 },
1765 { "-reverse", 0, 5, 0 },
1766 { "-hb", "--horizontal-scroll-bars", 5, 0 },
1767 { "-vb", "--vertical-scroll-bars", 5, 0 },
1768 { "-color", "--color", 5, 0},
1769 { "-no-splash", "--no-splash", 3, 0 },
1770 { "-no-desktop", "--no-desktop", 3, 0 },
1772 { "-NSAutoLaunch", 0, 5, 1 },
1773 { "-NXAutoLaunch", 0, 5, 1 },
1774 { "-_NSMachLaunch", 0, 85, 1 },
1775 { "-MachLaunch", 0, 85, 1 },
1776 { "-macosx", 0, 85, 0 },
1777 { "-NSHost", 0, 85, 1 },
1779 /* These have the same priority as ordinary file name args,
1780 so they are not reordered with respect to those. */
1781 { "-L", "--directory", 0, 1 },
1782 { "-directory", 0, 0, 1 },
1783 { "-l", "--load", 0, 1 },
1784 { "-load", 0, 0, 1 },
1785 /* This has no longname, because using --scriptload confuses sort_args,
1786 because then the --script long option seems to match twice; ie
1787 you can't have a long option which is a prefix of another long
1788 option. In any case, this is entirely an internal option. */
1789 { "-scriptload", NULL
, 0, 1 },
1790 { "-f", "--funcall", 0, 1 },
1791 { "-funcall", 0, 0, 1 },
1792 { "-eval", "--eval", 0, 1 },
1793 { "-execute", "--execute", 0, 1 },
1794 { "-find-file", "--find-file", 0, 1 },
1795 { "-visit", "--visit", 0, 1 },
1796 { "-file", "--file", 0, 1 },
1797 { "-insert", "--insert", 0, 1 },
1799 { "-NXOpen", 0, 0, 1 },
1800 { "-NXOpenTemp", 0, 0, 1 },
1801 { "-NSOpen", 0, 0, 1 },
1802 { "-NSOpenTemp", 0, 0, 1 },
1803 { "-GSFilePath", 0, 0, 1 },
1805 /* This should be processed after ordinary file name args and the like. */
1806 { "-kill", "--kill", -10, 0 },
1809 /* Reorder the elements of ARGV (assumed to have ARGC elements)
1810 so that the highest priority ones come first.
1811 Do not change the order of elements of equal priority.
1812 If an option takes an argument, keep it and its argument together.
1814 If an option that takes no argument appears more
1815 than once, eliminate all but one copy of it. */
1818 sort_args (int argc
, char **argv
)
1820 char **new = xmalloc (argc
* sizeof *new);
1821 /* For each element of argv,
1822 the corresponding element of options is:
1823 0 for an option that takes no arguments,
1824 1 for an option that takes one argument, etc.
1825 -1 for an ordinary non-option argument. */
1826 int *options
= xnmalloc_atomic (argc
, sizeof *options
);
1827 int *priority
= xnmalloc_atomic (argc
, sizeof *priority
);
1829 int incoming_used
= 1;
1833 /* Categorize all the options,
1834 and figure out which argv elts are option arguments. */
1835 for (from
= 1; from
< argc
; from
++)
1839 if (argv
[from
][0] == '-')
1843 /* If we have found "--", don't consider
1844 any more arguments as options. */
1845 if (argv
[from
][1] == '-' && argv
[from
][2] == 0)
1847 /* Leave the "--", and everything following it, at the end. */
1848 for (; from
< argc
; from
++)
1850 priority
[from
] = -100;
1856 /* Look for a match with a known old-fashioned option. */
1857 for (i
= 0; i
< ARRAYELTS (standard_args
); i
++)
1858 if (!strcmp (argv
[from
], standard_args
[i
].name
))
1860 options
[from
] = standard_args
[i
].nargs
;
1861 priority
[from
] = standard_args
[i
].priority
;
1862 if (from
+ standard_args
[i
].nargs
>= argc
)
1863 fatal ("Option `%s' requires an argument\n", argv
[from
]);
1864 from
+= standard_args
[i
].nargs
;
1868 /* Look for a match with a known long option.
1869 MATCH is -1 if no match so far, -2 if two or more matches so far,
1870 >= 0 (the table index of the match) if just one match so far. */
1871 if (argv
[from
][1] == '-')
1873 char const *equals
= strchr (argv
[from
], '=');
1875 equals
? equals
- argv
[from
] : strlen (argv
[from
]);
1879 for (i
= 0; i
< ARRAYELTS (standard_args
); i
++)
1880 if (standard_args
[i
].longname
1881 && !strncmp (argv
[from
], standard_args
[i
].longname
,
1890 /* If we found exactly one match, use that. */
1893 options
[from
] = standard_args
[match
].nargs
;
1894 priority
[from
] = standard_args
[match
].priority
;
1895 /* If --OPTION=VALUE syntax is used,
1896 this option uses just one argv element. */
1899 if (from
+ options
[from
] >= argc
)
1900 fatal ("Option `%s' requires an argument\n", argv
[from
]);
1901 from
+= options
[from
];
1903 /* FIXME When match < 0, shouldn't there be some error,
1904 or at least indication to the user that there was a
1911 /* Copy the arguments, in order of decreasing priority, to NEW. */
1913 while (incoming_used
< argc
)
1916 int best_priority
= -9999;
1918 /* Find the highest priority remaining option.
1919 If several have equal priority, take the first of them. */
1920 for (from
= 1; from
< argc
; from
++)
1922 if (argv
[from
] != 0 && priority
[from
] > best_priority
)
1924 best_priority
= priority
[from
];
1927 /* Skip option arguments--they are tied to the options. */
1928 if (options
[from
] > 0)
1929 from
+= options
[from
];
1935 /* Copy the highest priority remaining option, with its args, to NEW.
1936 Unless it is a duplicate of the previous one. */
1937 if (! (options
[best
] == 0
1938 && ! strcmp (new[to
- 1], argv
[best
])))
1940 new[to
++] = argv
[best
];
1941 for (i
= 0; i
< options
[best
]; i
++)
1942 new[to
++] = argv
[best
+ i
+ 1];
1945 incoming_used
+= 1 + (options
[best
] > 0 ? options
[best
] : 0);
1947 /* Clear out this option in ARGV. */
1949 for (i
= 0; i
< options
[best
]; i
++)
1950 argv
[best
+ i
+ 1] = 0;
1953 /* If duplicate options were deleted, fill up extra space with null ptrs. */
1957 memcpy (argv
, new, sizeof (char *) * argc
);
1964 DEFUN ("kill-emacs", Fkill_emacs
, Skill_emacs
, 0, 1, "P",
1965 doc
: /* Exit the Emacs job and kill it.
1966 If ARG is an integer, return ARG as the exit program code.
1967 If ARG is a string, stuff it as keyboard input.
1969 This function is called upon receipt of the signals SIGTERM
1970 or SIGHUP, and upon SIGINT in batch mode.
1972 The value of `kill-emacs-hook', if not void,
1973 is a list of functions (of no args),
1974 all of which are called before Emacs is actually killed. */)
1977 struct gcpro gcpro1
;
1985 /* Fsignal calls emacs_abort () if it sees that waiting_for_input is
1987 waiting_for_input
= 0;
1988 Frun_hooks (1, &Qkill_emacs_hook
);
1991 #ifdef HAVE_X_WINDOWS
1992 /* Transfer any clipboards we own to the clipboard manager. */
1993 x_clipboard_manager_save_all ();
1996 shut_down_emacs (0, STRINGP (arg
) ? arg
: Qnil
);
1999 ns_release_autorelease_pool (ns_pool
);
2002 /* If we have an auto-save list file,
2003 kill it because we are exiting Emacs deliberately (not crashing).
2004 Do it after shut_down_emacs, which does an auto-save. */
2005 if (STRINGP (Vauto_save_list_file_name
))
2007 Lisp_Object listfile
;
2008 listfile
= Fexpand_file_name (Vauto_save_list_file_name
, Qnil
);
2009 unlink (SSDATA (listfile
));
2013 exit_code
= (XINT (arg
) < 0
2014 ? XINT (arg
) | INT_MIN
2015 : XINT (arg
) & INT_MAX
);
2017 exit_code
= EXIT_SUCCESS
;
2022 /* Perform an orderly shutdown of Emacs. Autosave any modified
2023 buffers, kill any child processes, clean up the terminal modes (if
2024 we're in the foreground), and other stuff like that. Don't perform
2025 any redisplay; this may be called when Emacs is shutting down in
2026 the background, or after its X connection has died.
2028 If SIG is a signal number, print a message for it.
2030 This is called by fatal signal handlers, X protocol error handlers,
2034 shut_down_emacs (int sig
, Lisp_Object stuff
)
2036 /* Prevent running of hooks from now on. */
2039 /* Don't update display from now on. */
2040 Vinhibit_redisplay
= Qt
;
2042 /* If we are controlling the terminal, reset terminal modes. */
2045 pid_t pgrp
= getpgrp ();
2046 pid_t tpgrp
= tcgetpgrp (0);
2047 if ((tpgrp
!= -1) && tpgrp
== pgrp
)
2049 reset_all_sys_modes ();
2050 if (sig
&& sig
!= SIGTERM
)
2052 static char const format
[] = "Fatal error %d: ";
2053 char buf
[sizeof format
- 2 + INT_STRLEN_BOUND (int)];
2054 int buflen
= sprintf (buf
, format
, sig
);
2055 char const *sig_desc
= safe_strsignal (sig
);
2056 emacs_write (STDERR_FILENO
, buf
, buflen
);
2057 emacs_write (STDERR_FILENO
, sig_desc
, strlen (sig_desc
));
2063 reset_all_sys_modes ();
2066 stuff_buffered_input (stuff
);
2068 inhibit_sentinels
= 1;
2069 kill_buffer_processes (Qnil
);
2070 Fdo_auto_save (Qt
, Qnil
);
2072 unlock_all_files ();
2074 /* There is a tendency for a SIGIO signal to arrive within exit,
2075 and cause a SIGHUP because the input descriptor is already closed. */
2078 /* Do this only if terminating normally, we want glyph matrices
2079 etc. in a core dump. */
2080 if (sig
== 0 || sig
== SIGTERM
)
2082 check_glyph_memory ();
2083 check_message_stack ();
2091 ns_term_shutdown (sig
);
2095 xml_cleanup_parser ();
2109 DEFUN ("dump-emacs", Fdump_emacs
, Sdump_emacs
, 2, 2, 0,
2110 doc
: /* Dump current state of Emacs into executable file FILENAME.
2111 Take symbols from SYMFILE (presumably the file you executed to run Emacs).
2112 This is used in the file `loadup.el' when building Emacs.
2114 You must run Emacs in batch mode in order to dump it. */)
2115 (Lisp_Object filename
, Lisp_Object symfile
)
2123 if (! noninteractive
)
2124 error ("Dumping Emacs works only in batch mode");
2127 error ("Emacs can be dumped only once");
2131 /* Warn if the gap between BSS end and heap start is larger than this. */
2132 # define MAX_HEAP_BSS_DIFF (1024*1024)
2134 if (heap_bss_diff
> MAX_HEAP_BSS_DIFF
)
2136 fprintf (stderr
, "**************************************************\n");
2137 fprintf (stderr
, "Warning: Your system has a gap between BSS and the\n");
2138 fprintf (stderr
, "heap (%"pMu
" bytes). This usually means that exec-shield\n",
2140 fprintf (stderr
, "or something similar is in effect. The dump may\n");
2141 fprintf (stderr
, "fail because of this. See the section about\n");
2142 fprintf (stderr
, "exec-shield in etc/PROBLEMS for more information.\n");
2143 fprintf (stderr
, "**************************************************\n");
2145 #endif /* GNU_LINUX */
2147 /* Bind `command-line-processed' to nil before dumping,
2148 so that the dumped Emacs will process its command line
2149 and set up to work with X windows if appropriate. */
2150 symbol
= intern ("command-line-processed");
2151 specbind (symbol
, Qnil
);
2153 CHECK_STRING (filename
);
2154 filename
= Fexpand_file_name (filename
, Qnil
);
2155 filename
= ENCODE_FILE (filename
);
2156 if (!NILP (symfile
))
2158 CHECK_STRING (symfile
);
2159 if (SCHARS (symfile
))
2161 symfile
= Fexpand_file_name (symfile
, Qnil
);
2162 symfile
= ENCODE_FILE (symfile
);
2167 Vpurify_flag
= Qnil
;
2170 set_time_zone_rule (dump_tz
);
2171 #ifndef LOCALTIME_CACHE
2172 /* Force a tz reload, since set_time_zone_rule doesn't. */
2178 /* Tell malloc where start of impure now is. */
2179 /* Also arrange for warnings when nearly out of space. */
2180 #ifndef SYSTEM_MALLOC
2182 /* On Windows, this was done before dumping, and that once suffices.
2183 Meanwhile, my_edata is not valid on Windows. */
2185 extern char my_edata
[];
2186 memory_warnings (my_edata
, malloc_warning
);
2188 #endif /* not WINDOWSNT */
2189 #endif /* not SYSTEM_MALLOC */
2190 #ifdef DOUG_LEA_MALLOC
2191 malloc_state_ptr
= malloc_get_state ();
2194 unexec (SSDATA (filename
), !NILP (symfile
) ? SSDATA (symfile
) : 0);
2196 #ifdef DOUG_LEA_MALLOC
2197 free (malloc_state_ptr
);
2201 Vlibrary_cache
= Qnil
;
2203 #ifdef HAVE_WINDOW_SYSTEM
2204 reset_image_types ();
2213 #endif /* not CANNOT_DUMP */
2216 /* Recover from setlocale (LC_ALL, ""). */
2220 /* The Emacs Lisp reader needs LC_NUMERIC to be "C",
2221 so that numbers are read and printed properly for Emacs Lisp. */
2222 setlocale (LC_NUMERIC
, "C");
2225 /* Set system locale CATEGORY, with previous locale *PLOCALE, to
2228 synchronize_locale (int category
, Lisp_Object
*plocale
, Lisp_Object desired_locale
)
2230 if (! EQ (*plocale
, desired_locale
))
2232 *plocale
= desired_locale
;
2233 setlocale (category
, (STRINGP (desired_locale
)
2234 ? SSDATA (desired_locale
)
2239 /* Set system time locale to match Vsystem_time_locale, if possible. */
2241 synchronize_system_time_locale (void)
2243 synchronize_locale (LC_TIME
, &Vprevious_system_time_locale
,
2244 Vsystem_time_locale
);
2247 /* Set system messages locale to match Vsystem_messages_locale, if
2250 synchronize_system_messages_locale (void)
2253 synchronize_locale (LC_MESSAGES
, &Vprevious_system_messages_locale
,
2254 Vsystem_messages_locale
);
2257 #endif /* HAVE_SETLOCALE */
2261 decode_env_path (const char *evarname
, const char *defalt
, bool empty
)
2263 const char *path
, *p
;
2264 Lisp_Object lpath
, element
, tem
;
2265 /* Default is to use "." for empty path elements.
2266 But if argument EMPTY is true, use nil instead. */
2267 Lisp_Object empty_element
= empty
? Qnil
: build_string (".");
2270 static const char *emacs_dir_env
= "%emacs_dir%/";
2271 const size_t emacs_dir_len
= strlen (emacs_dir_env
);
2272 const char *edir
= egetenv ("emacs_dir");
2273 char emacs_dir
[MAX_UTF8_PATH
];
2275 /* egetenv looks in process-environment, which holds the variables
2276 in their original system-locale encoding. We need emacs_dir to
2279 filename_from_ansi (edir
, emacs_dir
);
2282 /* It's okay to use getenv here, because this function is only used
2283 to initialize variables when Emacs starts up, and isn't called
2286 path
= getenv (evarname
);
2297 /* Ensure values from the environment use the proper directory separator. */
2303 char *path_utf8
, *q
, *d
;
2306 /* Convert each element of PATH to UTF-8. */
2307 p
= path_copy
= alloca (strlen (path
) + 1);
2308 strcpy (path_copy
, path
);
2309 d
= path_utf8
= alloca (4 * strlen (path
) + 1);
2312 q
= _mbschr (p
, SEPCHAR
);
2315 cnv_result
= filename_from_ansi (p
, d
);
2320 /* If conversion of this PATH elements fails, make sure
2321 destination pointer will stay put, thus effectively
2322 ignoring the offending element. */
2323 if (cnv_result
== 0)
2329 else if (cnv_result
!= 0 && d
> path_utf8
)
2330 d
[-1] = '\0'; /* remove last semi-colon and null-terminate PATH */
2332 path_copy
= path_utf8
;
2334 path_copy
= alloca (strlen (path
) + 1);
2335 strcpy (path_copy
, path
);
2337 dostounix_filename (path_copy
);
2344 p
= strchr (path
, SEPCHAR
);
2346 p
= path
+ strlen (path
);
2347 element
= (p
- path
? make_unibyte_string (path
, p
- path
)
2349 if (! NILP (element
))
2352 /* Relative file names in the default path are interpreted as
2353 being relative to $emacs_dir. */
2354 if (edir
&& defaulted
2355 && strncmp (path
, emacs_dir_env
, emacs_dir_len
) == 0)
2356 element
= Fexpand_file_name (Fsubstring
2358 make_number (emacs_dir_len
),
2360 build_unibyte_string (emacs_dir
));
2363 /* Add /: to the front of the name
2364 if it would otherwise be treated as magic. */
2365 tem
= Ffind_file_name_handler (element
, Qt
);
2367 /* However, if the handler says "I'm safe",
2368 don't bother adding /:. */
2372 prop
= Fget (tem
, intern ("safe-magic"));
2378 element
= concat2 (build_string ("/:"), element
);
2379 } /* !NILP (element) */
2381 lpath
= Fcons (element
, lpath
);
2387 return Fnreverse (lpath
);
2390 DEFUN ("daemonp", Fdaemonp
, Sdaemonp
, 0, 0, 0,
2391 doc
: /* Return non-nil if the current emacs process is a daemon.
2392 If the daemon was given a name argument, return that name. */)
2397 return build_string (daemon_name
);
2404 DEFUN ("daemon-initialized", Fdaemon_initialized
, Sdaemon_initialized
, 0, 0, 0,
2405 doc
: /* Mark the Emacs daemon as being initialized.
2406 This finishes the daemonization process by doing the other half of detaching
2407 from the parent process and its tty file descriptors. */)
2414 error ("This function can only be called if emacs is run as a daemon");
2416 if (daemon_pipe
[1] < 0)
2417 error ("The daemon has already been initialized");
2419 if (NILP (Vafter_init_time
))
2420 error ("This function can only be called after loading the init files");
2422 /* Get rid of stdin, stdout and stderr. */
2423 nfd
= emacs_open ("/dev/null", O_RDWR
, 0);
2425 err
|= dup2 (nfd
, 0) < 0;
2426 err
|= dup2 (nfd
, 1) < 0;
2427 err
|= dup2 (nfd
, 2) < 0;
2428 err
|= emacs_close (nfd
) != 0;
2430 /* Closing the pipe will notify the parent that it can exit.
2431 FIXME: In case some other process inherited the pipe, closing it here
2432 won't notify the parent because it's still open elsewhere, so we
2433 additionally send a byte, just to make sure the parent really exits.
2434 Instead, we should probably close the pipe in start-process and
2435 call-process to make sure the pipe is never inherited by
2437 err
|= write (daemon_pipe
[1], "\n", 1) < 0;
2438 err
|= emacs_close (daemon_pipe
[1]) != 0;
2439 /* Set it to an invalid value so we know we've already run this function. */
2440 daemon_pipe
[1] = -1;
2443 error ("I/O error during daemon initialization");
2448 syms_of_emacs (void)
2452 DEFSYM (Qfile_name_handler_alist
, "file-name-handler-alist");
2453 DEFSYM (Qrisky_local_variable
, "risky-local-variable");
2454 DEFSYM (Qkill_emacs
, "kill-emacs");
2455 DEFSYM (Qkill_emacs_hook
, "kill-emacs-hook");
2457 DEFVAR_LISP ("command-line-args", Vcommand_line_args
,
2458 doc
: /* Args passed by shell to Emacs, as a list of strings.
2459 Many arguments are deleted from the list as they are processed. */);
2461 DEFVAR_LISP ("system-type", Vsystem_type
,
2462 doc
: /* The value is a symbol indicating the type of operating system you are using.
2464 `gnu' compiled for a GNU Hurd system.
2465 `gnu/linux' compiled for a GNU/Linux system.
2466 `gnu/kfreebsd' compiled for a GNU system with a FreeBSD kernel.
2467 `darwin' compiled for Darwin (GNU-Darwin, Mac OS X, ...).
2468 `ms-dos' compiled as an MS-DOS application.
2469 `windows-nt' compiled as a native W32 application.
2470 `cygwin' compiled using the Cygwin library.
2471 Anything else (in Emacs 24.1, the possibilities are: aix, berkeley-unix,
2472 hpux, irix, usg-unix-v) indicates some sort of Unix system. */);
2473 Vsystem_type
= intern_c_string (SYSTEM_TYPE
);
2474 /* See configure.ac (and config.nt) for the possible SYSTEM_TYPEs. */
2476 DEFVAR_LISP ("system-configuration", Vsystem_configuration
,
2477 doc
: /* Value is string indicating configuration Emacs was built for.
2478 On MS-Windows, the value reflects the OS flavor and version on which
2479 Emacs is running. */);
2480 Vsystem_configuration
= build_string (EMACS_CONFIGURATION
);
2482 DEFVAR_LISP ("system-configuration-options", Vsystem_configuration_options
,
2483 doc
: /* String containing the configuration options Emacs was built with. */);
2484 Vsystem_configuration_options
= build_string (EMACS_CONFIG_OPTIONS
);
2486 DEFVAR_LISP ("system-configuration-features", Vsystem_configuration_features
,
2487 doc
: /* String listing some of the main features this Emacs was compiled with.
2488 An element of the form \"FOO\" generally means that HAVE_FOO was
2489 defined during the build. */);
2490 Vsystem_configuration_features
= build_string (EMACS_CONFIG_FEATURES
);
2492 DEFVAR_BOOL ("noninteractive", noninteractive1
,
2493 doc
: /* Non-nil means Emacs is running without interactive terminal. */);
2495 DEFVAR_LISP ("kill-emacs-hook", Vkill_emacs_hook
,
2496 doc
: /* Hook run when `kill-emacs' is called.
2497 Since `kill-emacs' may be invoked when the terminal is disconnected (or
2498 in other similar situations), functions placed on this hook should not
2499 expect to be able to interact with the user. To ask for confirmation,
2500 see `kill-emacs-query-functions' instead.
2502 Before Emacs 24.1, the hook was not run in batch mode, i.e., if
2503 `noninteractive' was non-nil. */);
2504 Vkill_emacs_hook
= Qnil
;
2506 DEFVAR_LISP ("path-separator", Vpath_separator
,
2507 doc
: /* String containing the character that separates directories in
2508 search paths, such as PATH and other similar environment variables. */);
2511 Vpath_separator
= make_string (&c
, 1);
2514 DEFVAR_LISP ("invocation-name", Vinvocation_name
,
2515 doc
: /* The program name that was used to run Emacs.
2516 Any directory names are omitted. */);
2518 DEFVAR_LISP ("invocation-directory", Vinvocation_directory
,
2519 doc
: /* The directory in which the Emacs executable was found, to run it.
2520 The value is nil if that directory's name is not known. */);
2522 DEFVAR_LISP ("installation-directory", Vinstallation_directory
,
2523 doc
: /* A directory within which to look for the `lib-src' and `etc' directories.
2524 In an installed Emacs, this is normally nil. It is non-nil if
2525 both `lib-src' (on MS-DOS, `info') and `etc' directories are found
2526 within the variable `invocation-directory' or its parent. For example,
2527 this is the case when running an uninstalled Emacs executable from its
2528 build directory. */);
2529 Vinstallation_directory
= Qnil
;
2531 DEFVAR_LISP ("system-messages-locale", Vsystem_messages_locale
,
2532 doc
: /* System locale for messages. */);
2533 Vsystem_messages_locale
= Qnil
;
2535 DEFVAR_LISP ("previous-system-messages-locale",
2536 Vprevious_system_messages_locale
,
2537 doc
: /* Most recently used system locale for messages. */);
2538 Vprevious_system_messages_locale
= Qnil
;
2540 DEFVAR_LISP ("system-time-locale", Vsystem_time_locale
,
2541 doc
: /* System locale for time. */);
2542 Vsystem_time_locale
= Qnil
;
2544 DEFVAR_LISP ("previous-system-time-locale", Vprevious_system_time_locale
,
2545 doc
: /* Most recently used system locale for time. */);
2546 Vprevious_system_time_locale
= Qnil
;
2548 DEFVAR_LISP ("before-init-time", Vbefore_init_time
,
2549 doc
: /* Value of `current-time' before Emacs begins initialization. */);
2550 Vbefore_init_time
= Qnil
;
2552 DEFVAR_LISP ("after-init-time", Vafter_init_time
,
2553 doc
: /* Value of `current-time' after loading the init files.
2554 This is nil during initialization. */);
2555 Vafter_init_time
= Qnil
;
2557 DEFVAR_BOOL ("inhibit-x-resources", inhibit_x_resources
,
2558 doc
: /* If non-nil, X resources, Windows Registry settings, and NS defaults are not used. */);
2559 inhibit_x_resources
= 0;
2561 DEFVAR_LISP ("emacs-copyright", Vemacs_copyright
,
2562 doc
: /* Short copyright string for this version of Emacs. */);
2563 Vemacs_copyright
= build_string (emacs_copyright
);
2565 DEFVAR_LISP ("emacs-version", Vemacs_version
,
2566 doc
: /* Version numbers of this version of Emacs. */);
2567 Vemacs_version
= build_string (emacs_version
);
2569 DEFVAR_LISP ("report-emacs-bug-address", Vreport_emacs_bug_address
,
2570 doc
: /* Address of mailing list for GNU Emacs bugs. */);
2571 Vreport_emacs_bug_address
= build_string (emacs_bugreport
);
2573 DEFVAR_LISP ("dynamic-library-alist", Vdynamic_library_alist
,
2574 doc
: /* Alist of dynamic libraries vs external files implementing them.
2575 Each element is a list (LIBRARY FILE...), where the car is a symbol
2576 representing a supported external library, and the rest are strings giving
2577 alternate filenames for that library.
2579 Emacs tries to load the library from the files in the order they appear on
2580 the list; if none is loaded, the running session of Emacs won't have access
2583 Note that image types `pbm' and `xbm' do not need entries in this variable
2584 because they do not depend on external libraries and are always available.
2586 Also note that this is not a generic facility for accessing external
2587 libraries; only those already known by Emacs will be loaded. */);
2588 Vdynamic_library_alist
= Qnil
;
2589 Fput (intern_c_string ("dynamic-library-alist"), Qrisky_local_variable
, Qt
);
2592 Vlibrary_cache
= Qnil
;
2593 staticpro (&Vlibrary_cache
);