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>
31 #include <close-stream.h>
38 #include <sys/socket.h>
44 #if defined WINDOWSNT || defined HAVE_NTGUI
45 #include "w32select.h"
47 #include "w32common.h"
54 #ifdef HAVE_WINDOW_SYSTEM
56 #endif /* HAVE_WINDOW_SYSTEM */
58 #ifdef NS_IMPL_GNUSTEP
59 /* At least under Debian, GSConfig is in a subdirectory. --Stef */
60 #include <GNUstepBase/GSConfig.h>
64 #include "intervals.h"
65 #include "character.h"
71 #include "blockinput.h"
72 #include "syssignal.h"
75 #include "termhooks.h"
80 #include "composite.h"
81 #include "dispextern.h"
83 #include "sysselect.h"
90 #if (defined PROFILING \
91 && (defined __FreeBSD__ || defined GNU_LINUX || defined __MINGW32__))
92 # include <sys/gmon.h>
93 extern void moncontrol (int mode
);
100 #ifdef HAVE_SETRLIMIT
101 #include <sys/time.h>
102 #include <sys/resource.h>
105 #ifdef HAVE_PERSONALITY_LINUX32
106 #include <sys/personality.h>
109 static const char emacs_version
[] = PACKAGE_VERSION
;
110 static const char emacs_copyright
[] = COPYRIGHT
;
111 static const char emacs_bugreport
[] = PACKAGE_BUGREPORT
;
113 /* Empty lisp strings. To avoid having to build any others. */
114 Lisp_Object empty_unibyte_string
, empty_multibyte_string
;
117 /* Cache for externally loaded libraries. */
118 Lisp_Object Vlibrary_cache
;
121 /* Set after Emacs has started up the first time.
122 Prevents reinitialization of the Lisp world and keymaps
123 on subsequent starts. */
126 /* Set to true if this instance of Emacs might dump. */
130 extern void unexec_init_emacs_zone (void);
133 #ifdef DOUG_LEA_MALLOC
134 /* Preserves a pointer to the memory allocated that copies that
135 static data inside glibc's malloc. */
136 static void *malloc_state_ptr
;
137 /* From glibc, a routine that returns a copy of the malloc internal state. */
138 extern void *malloc_get_state (void);
139 /* From glibc, a routine that overwrites the malloc internal state. */
140 extern int malloc_set_state (void *);
141 /* True if the MALLOC_CHECK_ environment variable was set while
142 dumping. Used to work around a bug in glibc's malloc. */
143 static bool malloc_using_checking
;
144 #elif defined HAVE_PTHREAD && !defined SYSTEM_MALLOC
145 extern void malloc_enable_thread (void);
148 Lisp_Object Qfile_name_handler_alist
;
150 Lisp_Object Qrisky_local_variable
;
152 Lisp_Object Qkill_emacs
;
153 static Lisp_Object Qkill_emacs_hook
;
155 /* If true, Emacs should not attempt to use a window-specific code,
156 but instead should use the virtual terminal under which it was started. */
157 bool inhibit_window_system
;
159 /* If true, a filter or a sentinel is running. Tested to save the match
160 data on the first attempt to change it inside asynchronous code. */
161 bool running_asynch_code
;
163 #if defined (HAVE_X_WINDOWS) || defined (HAVE_NS)
164 /* If true, -d was specified, meaning we're using some window system. */
168 /* An address near the bottom of the stack.
169 Tells GC how to save a copy of the stack. */
172 #if defined (DOUG_LEA_MALLOC) || defined (GNU_LINUX)
173 /* The address where the heap starts (from the first sbrk (0) call). */
174 static void *my_heap_start
;
178 /* The gap between BSS end and heap start as far as we can tell. */
179 static uprintmax_t heap_bss_diff
;
182 /* To run as a daemon under Cocoa or Windows, we must do a fork+exec,
185 On Cocoa, CoreFoundation lib fails in forked process:
186 http://developer.apple.com/ReleaseNotes/
187 CoreFoundation/CoreFoundation.html)
189 On Windows, a Cygwin fork child cannot access the USER subsystem.
191 We mark being in the exec'd process by a daemon name argument of
192 form "--daemon=\nFD0,FD1\nNAME" where FD are the pipe file descriptors,
193 NAME is the original daemon name, if any. */
194 #if defined NS_IMPL_COCOA || (defined HAVE_NTGUI && defined CYGWIN)
195 # define DAEMON_MUST_EXEC
198 /* True means running Emacs without interactive terminal. */
201 /* True means remove site-lisp directories from load-path. */
204 /* Name for the server started by the daemon.*/
205 static char *daemon_name
;
207 /* Pipe used to send exit notification to the daemon parent at
211 /* Save argv and argc. */
215 static void sort_args (int argc
, char **argv
);
216 static void syms_of_emacs (void);
218 /* C99 needs each string to be at most 4095 characters, and the usage
219 strings below are split to not overflow this limit. */
220 static char const *const usage_message
[] =
223 Run Emacs, the extensible, customizable, self-documenting real-time\n\
224 display editor. The recommended way to start Emacs for normal editing\n\
225 is with no options at all.\n\
227 Run M-x info RET m emacs RET m emacs invocation RET inside Emacs to\n\
228 read the main documentation for these command-line arguments.\n\
230 Initialization options:\n\
234 --batch do not do interactive display; implies -q\n\
235 --chdir DIR change to directory DIR\n\
236 --daemon start a server in the background\n\
237 --debug-init enable Emacs Lisp debugger for init file\n\
238 --display, -d DISPLAY use X server DISPLAY\n\
241 --no-desktop do not load a saved desktop\n\
242 --no-init-file, -q load neither ~/.emacs nor default.el\n\
243 --no-shared-memory, -nl do not use shared memory\n\
244 --no-site-file do not load site-start.el\n\
245 --no-site-lisp, -nsl do not add site-lisp directories to load-path\n\
246 --no-splash do not display a splash screen on startup\n\
247 --no-window-system, -nw do not communicate with X, ignoring $DISPLAY\n\
250 --quick, -Q equivalent to:\n\
251 -q --no-site-file --no-site-lisp --no-splash\n\
252 --script FILE run FILE as an Emacs Lisp script\n\
253 --terminal, -t DEVICE use DEVICE for terminal I/O\n\
254 --user, -u USER load ~USER/.emacs instead of your own\n\
260 FILE visit FILE using find-file\n\
261 +LINE go to line LINE in next FILE\n\
262 +LINE:COLUMN go to line LINE, column COLUMN, in next FILE\n\
263 --directory, -L DIR prepend DIR to load-path (with :DIR, append DIR)\n\
264 --eval EXPR evaluate Emacs Lisp expression EXPR\n\
265 --execute EXPR evaluate Emacs Lisp expression EXPR\n\
268 --file FILE visit FILE using find-file\n\
269 --find-file FILE visit FILE using find-file\n\
270 --funcall, -f FUNC call Emacs Lisp function FUNC with no arguments\n\
271 --insert FILE insert contents of FILE into current buffer\n\
272 --kill exit without asking for confirmation\n\
273 --load, -l FILE load Emacs Lisp FILE using the load function\n\
274 --visit FILE visit FILE using find-file\n\
280 --background-color, -bg COLOR window background color\n\
281 --basic-display, -D disable many display features;\n\
282 used for debugging Emacs\n\
283 --border-color, -bd COLOR main border color\n\
284 --border-width, -bw WIDTH width of main border\n\
287 --color, --color=MODE override color mode for character terminals;\n\
288 MODE defaults to `auto', and\n\
289 can also be `never', `always',\n\
290 or a mode name like `ansi8'\n\
291 --cursor-color, -cr COLOR color of the Emacs cursor indicating point\n\
292 --font, -fn FONT default font; must be fixed-width\n\
293 --foreground-color, -fg COLOR window foreground color\n\
296 --fullheight, -fh make the first frame high as the screen\n\
297 --fullscreen, -fs make the first frame fullscreen\n\
298 --fullwidth, -fw make the first frame wide as the screen\n\
299 --maximized, -mm make the first frame maximized\n\
300 --geometry, -g GEOMETRY window geometry\n\
303 --no-bitmap-icon, -nbi do not use picture of gnu for Emacs icon\n\
304 --iconic start Emacs in iconified state\n\
305 --internal-border, -ib WIDTH width between text and main border\n\
306 --line-spacing, -lsp PIXELS additional space to put between lines\n\
307 --mouse-color, -ms COLOR mouse cursor color in Emacs window\n\
308 --name NAME title for initial Emacs frame\n\
311 --no-blinking-cursor, -nbc disable blinking cursor\n\
312 --reverse-video, -r, -rv switch foreground and background\n\
313 --title, -T TITLE title for initial Emacs frame\n\
314 --vertical-scroll-bars, -vb enable vertical scroll bars\n\
315 --xrm XRESOURCES set additional X resources\n\
316 --parent-id XID set parent window\n\
317 --help display this help and exit\n\
318 --version output version information and exit\n\
322 You can generally also specify long option names with a single -; for\n\
323 example, -batch as well as --batch. You can use any unambiguous\n\
324 abbreviation for a --option.\n\
326 Various environment variables and window system resources also affect\n\
327 the operation of Emacs. See the main documentation.\n\
329 Report bugs to " PACKAGE_BUGREPORT
". First, please see the Bugs\n\
330 section of the Emacs manual or the file BUGS.\n"
334 /* True if handling a fatal error already. */
335 bool fatal_error_in_progress
;
338 /* NS autrelease pool, for memory management. */
339 static void *ns_pool
;
344 setlocale (int cat
, char const *locale
)
351 /* Report a fatal error due to signal SIG, output a backtrace of at
352 most BACKTRACE_LIMIT lines, and exit. */
354 terminate_due_to_signal (int sig
, int backtrace_limit
)
356 signal (sig
, SIG_DFL
);
357 totally_unblock_input ();
359 /* If fatal error occurs in code below, avoid infinite recursion. */
360 if (! fatal_error_in_progress
)
362 fatal_error_in_progress
= 1;
364 if (sig
== SIGTERM
|| sig
== SIGHUP
|| sig
== SIGINT
)
365 Fkill_emacs (make_number (sig
));
367 shut_down_emacs (sig
, Qnil
);
368 emacs_backtrace (backtrace_limit
);
371 /* Signal the same code; this time it will really be fatal.
372 Since we're in a signal handler, the signal is blocked, so we
373 have to unblock it if we want to really receive it. */
377 sigemptyset (&unblocked
);
378 sigaddset (&unblocked
, sig
);
379 pthread_sigmask (SIG_UNBLOCK
, &unblocked
, 0);
385 /* This shouldn't be executed, but it prevents a warning. */
389 /* Code for dealing with Lisp access to the Unix command line. */
392 init_cmdargs (int argc
, char **argv
, int skip_args
, char *original_pwd
)
395 Lisp_Object name
, dir
, handler
;
396 ptrdiff_t count
= SPECPDL_INDEX ();
397 Lisp_Object raw_name
;
403 /* Must use argv[0] converted to UTF-8, as it begets many standard
404 file and directory names. */
406 char argv0
[MAX_UTF8_PATH
];
408 if (filename_from_ansi (argv
[0], argv0
) == 0)
409 raw_name
= build_unibyte_string (argv0
);
411 raw_name
= build_unibyte_string (argv
[0]);
414 raw_name
= build_unibyte_string (argv
[0]);
417 /* Add /: to the front of the name
418 if it would otherwise be treated as magic. */
419 handler
= Ffind_file_name_handler (raw_name
, Qt
);
420 if (! NILP (handler
))
421 raw_name
= concat2 (build_string ("/:"), raw_name
);
423 Vinvocation_name
= Ffile_name_nondirectory (raw_name
);
424 Vinvocation_directory
= Ffile_name_directory (raw_name
);
426 /* If we got no directory in argv[0], search PATH to find where
427 Emacs actually came from. */
428 if (NILP (Vinvocation_directory
))
431 int yes
= openp (Vexec_path
, Vinvocation_name
,
432 Vexec_suffixes
, &found
, make_number (X_OK
), false);
435 /* Add /: to the front of the name
436 if it would otherwise be treated as magic. */
437 handler
= Ffind_file_name_handler (found
, Qt
);
438 if (! NILP (handler
))
439 found
= concat2 (build_string ("/:"), found
);
440 Vinvocation_directory
= Ffile_name_directory (found
);
444 if (!NILP (Vinvocation_directory
)
445 && NILP (Ffile_name_absolute_p (Vinvocation_directory
)))
446 /* Emacs was started with relative path, like ./emacs.
450 original_pwd
? build_unibyte_string (original_pwd
) : Qnil
;
452 Vinvocation_directory
= Fexpand_file_name (Vinvocation_directory
, odir
);
455 Vinstallation_directory
= Qnil
;
457 if (!NILP (Vinvocation_directory
))
459 dir
= Vinvocation_directory
;
461 /* If we are running from the build directory, set DIR to the
462 src subdirectory of the Emacs tree, like on Posix
464 if (SBYTES (dir
) > sizeof ("/i386/") - 1
465 && 0 == strcmp (SSDATA (dir
) + SBYTES (dir
) - sizeof ("/i386/") + 1,
467 dir
= Fexpand_file_name (build_string ("../.."), dir
);
468 #else /* !WINDOWSNT */
470 name
= Fexpand_file_name (Vinvocation_name
, dir
);
473 Lisp_Object tem
, lib_src_exists
;
474 Lisp_Object etc_exists
, info_exists
;
476 /* See if dir contains subdirs for use by Emacs.
477 Check for the ones that would exist in a build directory,
478 not including lisp and info. */
479 tem
= Fexpand_file_name (build_string ("lib-src"), dir
);
480 lib_src_exists
= Ffile_exists_p (tem
);
483 /* MSDOS installations frequently remove lib-src, but we still
484 must set installation-directory, or else info won't find
485 its files (it uses the value of installation-directory). */
486 tem
= Fexpand_file_name (build_string ("info"), dir
);
487 info_exists
= Ffile_exists_p (tem
);
492 if (!NILP (lib_src_exists
) || !NILP (info_exists
))
494 tem
= Fexpand_file_name (build_string ("etc"), dir
);
495 etc_exists
= Ffile_exists_p (tem
);
496 if (!NILP (etc_exists
))
498 Vinstallation_directory
499 = Ffile_name_as_directory (dir
);
504 /* See if dir's parent contains those subdirs. */
505 tem
= Fexpand_file_name (build_string ("../lib-src"), dir
);
506 lib_src_exists
= Ffile_exists_p (tem
);
510 /* See the MSDOS commentary above. */
511 tem
= Fexpand_file_name (build_string ("../info"), dir
);
512 info_exists
= Ffile_exists_p (tem
);
517 if (!NILP (lib_src_exists
) || !NILP (info_exists
))
519 tem
= Fexpand_file_name (build_string ("../etc"), dir
);
520 etc_exists
= Ffile_exists_p (tem
);
521 if (!NILP (etc_exists
))
523 tem
= Fexpand_file_name (build_string (".."), dir
);
524 Vinstallation_directory
525 = Ffile_name_as_directory (tem
);
530 /* If the Emacs executable is actually a link,
531 next try the dir that the link points into. */
532 tem
= Ffile_symlink_p (name
);
535 name
= Fexpand_file_name (tem
, dir
);
536 dir
= Ffile_name_directory (name
);
543 Vcommand_line_args
= Qnil
;
545 for (i
= argc
- 1; i
>= 0; i
--)
547 if (i
== 0 || i
> skip_args
)
548 /* For the moment, we keep arguments as is in unibyte strings.
549 They are decoded in the function command-line after we know
550 locale-coding-system. */
552 = Fcons (build_unibyte_string (argv
[i
]), Vcommand_line_args
);
555 unbind_to (count
, Qnil
);
558 DEFUN ("invocation-name", Finvocation_name
, Sinvocation_name
, 0, 0, 0,
559 doc
: /* Return the program name that was used to run Emacs.
560 Any directory names are omitted. */)
563 return Fcopy_sequence (Vinvocation_name
);
566 DEFUN ("invocation-directory", Finvocation_directory
, Sinvocation_directory
,
568 doc
: /* Return the directory name in which the Emacs executable was located. */)
571 return Fcopy_sequence (Vinvocation_directory
);
576 /* A valid but unlikely value for the TZ environment value.
577 It is OK (though a bit slower) if the user actually chooses this value. */
578 static char const dump_tz
[] = "UtC0";
581 /* Test whether the next argument in ARGV matches SSTR or a prefix of
582 LSTR (at least MINLEN characters). If so, then if VALPTR is non-null
583 (the argument is supposed to have a value) store in *VALPTR either
584 the next argument or the portion of this one after the equal sign.
585 ARGV is read starting at position *SKIPPTR; this index is advanced
586 by the number of arguments used.
588 Too bad we can't just use getopt for all of this, but we don't have
589 enough information to do it right. */
592 argmatch (char **argv
, int argc
, const char *sstr
, const char *lstr
,
593 int minlen
, char **valptr
, int *skipptr
)
599 /* Don't access argv[argc]; give up in advance. */
600 if (argc
<= *skipptr
+ 1)
603 arg
= argv
[*skipptr
+1];
606 if (strcmp (arg
, sstr
) == 0)
610 *valptr
= argv
[*skipptr
+2];
617 arglen
= (valptr
!= NULL
&& (p
= strchr (arg
, '=')) != NULL
618 ? p
- arg
: strlen (arg
));
619 if (lstr
== 0 || arglen
< minlen
|| strncmp (arg
, lstr
, arglen
) != 0)
621 else if (valptr
== NULL
)
632 else if (argv
[*skipptr
+2] != NULL
)
634 *valptr
= argv
[*skipptr
+2];
644 #ifdef DOUG_LEA_MALLOC
646 /* malloc can be invoked even before main (e.g. by the dynamic
647 linker), so the dumped malloc state must be restored as early as
648 possible using this special hook. */
651 malloc_initialize_hook (void)
655 if (!malloc_using_checking
)
656 /* Work around a bug in glibc's malloc. MALLOC_CHECK_ must be
657 ignored if the heap to be restored was constructed without
658 malloc checking. Can't use unsetenv, since that calls malloc. */
662 for (p
= environ
; p
&& *p
; p
++)
663 if (strncmp (*p
, "MALLOC_CHECK_=", 14) == 0)
672 malloc_set_state (malloc_state_ptr
);
673 free (malloc_state_ptr
);
677 if (my_heap_start
== 0)
678 my_heap_start
= sbrk (0);
679 malloc_using_checking
= getenv ("MALLOC_CHECK_") != NULL
;
683 void (*__malloc_initialize_hook
) (void) EXTERNALLY_VISIBLE
= malloc_initialize_hook
;
685 #endif /* DOUG_LEA_MALLOC */
687 /* Close standard output and standard error, reporting any write
688 errors as best we can. This is intended for use with atexit. */
690 close_output_streams (void)
692 if (close_stream (stdout
) != 0)
694 emacs_perror ("Write error to standard output");
695 _exit (EXIT_FAILURE
);
698 if (close_stream (stderr
) != 0)
699 _exit (EXIT_FAILURE
);
704 main (int argc
, char **argv
)
706 char stack_bottom_variable
;
707 bool do_initial_setlocale
;
710 #ifdef HAVE_SETRLIMIT
716 #ifdef DAEMON_MUST_EXEC
721 /* If we use --chdir, this records the original directory. */
722 char *original_pwd
= 0;
724 #ifdef G_SLICE_ALWAYS_MALLOC
725 /* This is used by the Cygwin build. It's not needed starting with
726 cygwin-1.7.24, but it doesn't do any harm. */
727 xputenv ("G_SLICE=always-malloc");
731 might_dump
= !initialized
;
737 extern char my_endbss
[];
738 extern char *my_endbss_static
;
740 if (my_heap_start
== 0)
741 my_heap_start
= sbrk (0);
743 heap_bss_diff
= (char *)my_heap_start
- max (my_endbss
, my_endbss_static
);
747 #if defined WINDOWSNT || defined HAVE_NTGUI
748 /* Set global variables used to detect Windows version. Do this as
749 early as possible. (unexw32.c calls this function as well, but
750 the additional call here is harmless.) */
751 cache_system_info ();
753 /* On Windows 9X, we have to load UNICOWS.DLL as early as possible,
754 to have non-stub implementations of APIs we need to convert file
755 names between UTF-8 and the system's ANSI codepage. */
756 maybe_load_unicows_dll ();
760 #ifdef RUN_TIME_REMAP
762 run_time_remap (argv
[0]);
765 /* If using unexmacosx.c (set by s/darwin.h), we must do this. */
768 unexec_init_emacs_zone ();
771 atexit (close_output_streams
);
773 sort_args (argc
, argv
);
775 while (argv
[argc
]) argc
++;
777 if (argmatch (argv
, argc
, "-version", "--version", 3, NULL
, &skip_args
))
779 const char *version
, *copyright
;
782 Lisp_Object tem
, tem2
;
783 tem
= Fsymbol_value (intern_c_string ("emacs-version"));
784 tem2
= Fsymbol_value (intern_c_string ("emacs-copyright"));
787 fprintf (stderr
, "Invalid value of `emacs-version'\n");
792 fprintf (stderr
, "Invalid value of `emacs-copyright'\n");
797 version
= SSDATA (tem
);
798 copyright
= SSDATA (tem2
);
803 version
= emacs_version
;
804 copyright
= emacs_copyright
;
806 printf ("GNU Emacs %s\n", version
);
807 printf ("%s\n", copyright
);
808 printf ("GNU Emacs comes with ABSOLUTELY NO WARRANTY.\n");
809 printf ("You may redistribute copies of Emacs\n");
810 printf ("under the terms of the GNU General Public License.\n");
811 printf ("For more information about these matters, ");
812 printf ("see the file named COPYING.\n");
816 if (argmatch (argv
, argc
, "-chdir", "--chdir", 4, &ch_to_dir
, &skip_args
))
819 /* argv[] array is kept in its original ANSI codepage encoding,
820 we need to convert to UTF-8, for chdir to work. */
821 char newdir
[MAX_UTF8_PATH
];
823 filename_from_ansi (ch_to_dir
, newdir
);
826 original_pwd
= get_current_dir_name ();
827 if (chdir (ch_to_dir
) != 0)
829 fprintf (stderr
, "%s: Can't chdir to %s: %s\n",
830 argv
[0], ch_to_dir
, strerror (errno
));
835 dumping
= !initialized
&& (strcmp (argv
[argc
- 1], "dump") == 0
836 || strcmp (argv
[argc
- 1], "bootstrap") == 0);
838 #ifdef HAVE_PERSONALITY_LINUX32
839 if (dumping
&& ! getenv ("EMACS_HEAP_EXEC"))
841 /* Set this so we only do this once. */
842 xputenv ("EMACS_HEAP_EXEC=true");
844 /* A flag to turn off address randomization which is introduced
845 in linux kernel shipped with fedora core 4 */
846 #define ADD_NO_RANDOMIZE 0x0040000
847 personality (PER_LINUX32
| ADD_NO_RANDOMIZE
);
848 #undef ADD_NO_RANDOMIZE
850 execvp (argv
[0], argv
);
852 /* If the exec fails, try to dump anyway. */
853 emacs_perror (argv
[0]);
855 #endif /* HAVE_PERSONALITY_LINUX32 */
857 #if defined (HAVE_SETRLIMIT) && defined (RLIMIT_STACK)
858 /* Extend the stack space available.
859 Don't do that if dumping, since some systems (e.g. DJGPP)
860 might define a smaller stack limit at that time. */
863 && (!noninteractive
|| initialized
)
865 && !getrlimit (RLIMIT_STACK
, &rlim
))
868 extern size_t re_max_failures
;
869 /* Approximate the amount regex.c needs per unit of re_max_failures. */
870 int ratio
= 20 * sizeof (char *);
871 /* Then add 33% to cover the size of the smaller stacks that regex.c
872 successively allocates and discards, on its way to the maximum. */
874 /* Add in some extra to cover
875 what we're likely to use for other reasons. */
876 newlim
= re_max_failures
* ratio
+ 200000;
878 /* NetBSD (at least NetBSD 1.2G and former) has a bug in its
879 stack allocation routine for new process that the allocation
880 fails if stack limit is not on page boundary. So, round up the
881 new limit to page boundary. */
882 newlim
= (newlim
+ getpagesize () - 1) / getpagesize () * getpagesize ();
884 if (newlim
> rlim
.rlim_max
)
886 newlim
= rlim
.rlim_max
;
887 /* Don't let regex.c overflow the stack we have. */
888 re_max_failures
= (newlim
- 200000) / ratio
;
890 if (rlim
.rlim_cur
< newlim
)
891 rlim
.rlim_cur
= newlim
;
893 setrlimit (RLIMIT_STACK
, &rlim
);
895 #endif /* HAVE_SETRLIMIT and RLIMIT_STACK */
897 /* Record (approximately) where the stack begins. */
898 stack_bottom
= &stack_bottom_variable
;
902 #ifndef SYSTEM_MALLOC
903 /* Arrange to get warning messages as memory fills up. */
904 memory_warnings (0, malloc_warning
);
906 /* Call malloc at least once, to run malloc_initialize_hook.
907 Also call realloc and free for consistency. */
908 free (realloc (malloc (4), 4));
910 #endif /* not SYSTEM_MALLOC */
912 #if defined (MSDOS) || defined (WINDOWSNT)
913 /* We do all file input/output as binary files. When we need to translate
914 newlines, we do that manually. */
916 #endif /* MSDOS || WINDOWSNT */
919 if (!isatty (fileno (stdin
)))
920 setmode (fileno (stdin
), O_BINARY
);
921 if (!isatty (fileno (stdout
)))
924 setmode (fileno (stdout
), O_BINARY
);
928 /* Skip initial setlocale if LC_ALL is "C", as it's not needed in that case.
929 The build procedure uses this while dumping, to ensure that the
930 dumped Emacs does not have its system locale tables initialized,
931 as that might cause screwups when the dumped Emacs starts up. */
933 char *lc_all
= getenv ("LC_ALL");
934 do_initial_setlocale
= ! lc_all
|| strcmp (lc_all
, "C");
937 /* Set locale now, so that initial error messages are localized properly.
938 fixup_locale must wait until later, since it builds strings. */
939 if (do_initial_setlocale
)
940 setlocale (LC_ALL
, "");
942 inhibit_window_system
= 0;
944 /* Handle the -t switch, which specifies filename to use as terminal. */
948 if (argmatch (argv
, argc
, "-t", "--terminal", 4, &term
, &skip_args
))
953 result
= emacs_open (term
, O_RDWR
, 0);
954 if (result
< 0 || fcntl (0, F_DUPFD_CLOEXEC
, 1) < 0)
956 char *errstring
= strerror (errno
);
957 fprintf (stderr
, "%s: %s: %s\n", argv
[0], term
, errstring
);
962 fprintf (stderr
, "%s: %s: not a tty\n", argv
[0], term
);
965 fprintf (stderr
, "Using %s\n", term
);
966 #ifdef HAVE_WINDOW_SYSTEM
967 inhibit_window_system
= 1; /* -t => -nw */
974 /* Command line option --no-windows is deprecated and thus not mentioned
975 in the manual and usage information. */
976 if (argmatch (argv
, argc
, "-nw", "--no-window-system", 6, NULL
, &skip_args
)
977 || argmatch (argv
, argc
, "-nw", "--no-windows", 6, NULL
, &skip_args
))
978 inhibit_window_system
= 1;
980 /* Handle the -batch switch, which means don't do interactive display. */
982 if (argmatch (argv
, argc
, "-batch", "--batch", 5, NULL
, &skip_args
))
985 Vundo_outer_limit
= Qnil
;
987 if (argmatch (argv
, argc
, "-script", "--script", 3, &junk
, &skip_args
))
989 noninteractive
= 1; /* Set batch mode. */
990 /* Convert --script to -scriptload, un-skip it, and sort again
991 so that it will be handled in proper sequence. */
992 /* FIXME broken for --script=FILE - is that supposed to work? */
993 argv
[skip_args
- 1] = (char *) "-scriptload";
995 sort_args (argc
, argv
);
998 /* Handle the --help option, which gives a usage message. */
999 if (argmatch (argv
, argc
, "-help", "--help", 3, NULL
, &skip_args
))
1002 printf ("Usage: %s [OPTION-OR-FILENAME]...\n", argv
[0]);
1003 for (i
= 0; i
< ARRAYELTS (usage_message
); i
++)
1004 fputs (usage_message
[i
], stdout
);
1008 /* Make sure IS_DAEMON starts up as false. */
1011 if (argmatch (argv
, argc
, "-daemon", "--daemon", 5, NULL
, &skip_args
)
1012 || argmatch (argv
, argc
, "-daemon", "--daemon", 5, &dname_arg
, &skip_args
))
1017 /* Start as a daemon: fork a new child process which will run the
1018 rest of the initialization code, then exit.
1020 Detaching a daemon requires the following steps:
1024 - close the tty file-descriptors
1026 We only want to do the last 2 steps once the daemon is ready to
1027 serve requests, i.e. after loading .emacs (initialization).
1028 OTOH initialization may start subprocesses (e.g. ispell) and these
1029 should be run from the proper process (the one that will end up
1030 running as daemon) and with the proper "session id" in order for
1031 them to keep working after detaching, so fork and setsid need to be
1032 performed before initialization.
1034 We want to avoid exiting before the server socket is ready, so
1035 use a pipe for synchronization. The parent waits for the child
1036 to close its end of the pipe (using `daemon-initialized')
1038 if (emacs_pipe (daemon_pipe
) != 0)
1040 fprintf (stderr
, "Cannot pipe!\n");
1044 #ifndef DAEMON_MUST_EXEC
1046 fprintf (stderr
, "\nWarning: due to a long standing Gtk+ bug\nhttp://bugzilla.gnome.org/show_bug.cgi?id=85715\n\
1047 Emacs might crash when run in daemon mode and the X11 connection is unexpectedly lost.\n\
1048 Using an Emacs configured with --with-x-toolkit=lucid does not have this problem.\n");
1049 #endif /* USE_GTK */
1051 #else /* DAEMON_MUST_EXEC */
1052 if (!dname_arg
|| !strchr (dname_arg
, '\n'))
1053 f
= fork (); /* in orig */
1055 f
= 0; /* in exec'd */
1056 #endif /* !DAEMON_MUST_EXEC */
1062 /* Close unused writing end of the pipe. */
1063 emacs_close (daemon_pipe
[1]);
1065 /* Just wait for the child to close its end of the pipe. */
1068 retval
= read (daemon_pipe
[0], &buf
, 1);
1070 while (retval
== -1 && errno
== EINTR
);
1074 fprintf (stderr
, "Error reading status from child\n");
1077 else if (retval
== 0)
1079 fprintf (stderr
, "Error: server did not start correctly\n");
1083 emacs_close (daemon_pipe
[0]);
1088 emacs_perror ("fork");
1089 exit (EXIT_CANCELED
);
1092 #ifdef DAEMON_MUST_EXEC
1094 /* In orig process, forked as child, OR in exec'd. */
1095 if (!dname_arg
|| !strchr (dname_arg
, '\n'))
1096 { /* In orig, child: now exec w/special daemon name. */
1099 snprintf (fdStr
, sizeof fdStr
,
1100 "--daemon=\n%d,%d\n%s", daemon_pipe
[0],
1101 daemon_pipe
[1], dname_arg
? dname_arg
: "");
1103 if (! (0 <= fdStrlen
&& fdStrlen
< sizeof fdStr
))
1105 fprintf (stderr
, "daemon: child name too long\n");
1106 exit (EXIT_CANNOT_INVOKE
);
1109 argv
[skip_args
] = fdStr
;
1111 fcntl (daemon_pipe
[0], F_SETFD
, 0);
1112 fcntl (daemon_pipe
[1], F_SETFD
, 0);
1113 execvp (argv
[0], argv
);
1114 emacs_perror (argv
[0]);
1115 exit (errno
== ENOENT
? EXIT_ENOENT
: EXIT_CANNOT_INVOKE
);
1118 /* In exec'd: parse special dname into pipe and name info. */
1119 if (!dname_arg
|| !strchr (dname_arg
, '\n')
1120 || strlen (dname_arg
) < 1 || strlen (dname_arg
) > 70)
1122 fprintf (stderr
, "emacs daemon: daemon name absent or too long\n");
1123 exit (EXIT_CANNOT_INVOKE
);
1125 dname_arg2
[0] = '\0';
1126 sscanf (dname_arg
, "\n%d,%d\n%s", &(daemon_pipe
[0]), &(daemon_pipe
[1]),
1128 dname_arg
= *dname_arg2
? dname_arg2
: NULL
;
1129 fcntl (daemon_pipe
[1], F_SETFD
, FD_CLOEXEC
);
1131 #endif /* DAEMON_MUST_EXEC */
1134 daemon_name
= xstrdup (dname_arg
);
1135 /* Close unused reading end of the pipe. */
1136 emacs_close (daemon_pipe
[0]);
1140 fprintf (stderr
, "This platform does not support the -daemon flag.\n");
1145 #if defined HAVE_PTHREAD && !defined SYSTEM_MALLOC && !defined DOUG_LEA_MALLOC
1146 # ifndef CANNOT_DUMP
1147 /* Do not make gmalloc thread-safe when creating bootstrap-emacs, as
1148 that causes an infinite recursive loop with FreeBSD. But do make
1149 it thread-safe when creating emacs, otherwise bootstrap-emacs
1150 fails on Cygwin. See Bug#14569. */
1151 if (!noninteractive
|| initialized
)
1153 malloc_enable_thread ();
1156 init_signals (dumping
);
1158 noninteractive1
= noninteractive
;
1160 /* Perform basic initializations (not merely interning symbols). */
1167 init_charset_once ();
1168 init_coding_once ();
1169 init_syntax_once (); /* Create standard syntax table. */
1170 init_category_once (); /* Create standard category table. */
1171 init_casetab_once (); /* Must be done before init_buffer_once. */
1172 init_buffer_once (); /* Create buffer table and some buffers. */
1173 init_minibuf_once (); /* Create list of minibuffers. */
1174 /* Must precede init_window_once. */
1176 /* Call syms_of_xfaces before init_window_once because that
1177 function creates Vterminal_frame. Termcap frames now use
1178 faces, and the face implementation uses some symbols as
1181 /* XXX syms_of_keyboard uses some symbols in keymap.c. It would
1182 be better to arrange things not to have this dependency. */
1184 /* Call syms_of_keyboard before init_window_once because
1185 keyboard sets up symbols that include some face names that
1186 the X support will want to use. This can happen when
1187 CANNOT_DUMP is defined. */
1188 syms_of_keyboard ();
1190 /* Called before syms_of_fileio, because it sets up Qerror_condition. */
1192 syms_of_fns (); /* Before syms_of_charset which uses hashtables. */
1194 /* Before syms_of_coding to initialize Vgc_cons_threshold. */
1196 /* May call Ffuncall and so GC, thus the latter should be initialized. */
1198 /* Before syms_of_coding because it initializes Qcharsetp. */
1200 /* Before init_window_once, because it sets up the
1201 Vcoding_system_hash_table. */
1202 syms_of_coding (); /* This should be after syms_of_fileio. */
1204 init_window_once (); /* Init the window system. */
1205 #ifdef HAVE_WINDOW_SYSTEM
1206 init_fringe_once (); /* Swap bitmaps if necessary. */
1207 #endif /* HAVE_WINDOW_SYSTEM */
1212 if (do_initial_setlocale
)
1215 Vsystem_messages_locale
= Vprevious_system_messages_locale
;
1216 Vsystem_time_locale
= Vprevious_system_time_locale
;
1221 running_asynch_code
= 0;
1225 = argmatch (argv
, argc
, "-nl", "--no-loadup", 6, NULL
, &skip_args
);
1228 = argmatch (argv
, argc
, "-nsl", "--no-site-lisp", 11, NULL
, &skip_args
);
1231 ns_pool
= ns_alloc_autorelease_pool ();
1232 #ifdef NS_IMPL_GNUSTEP
1233 /* GNUstep stupidly resets our locale settings after we made them. */
1237 if (!noninteractive
)
1239 #ifdef NS_IMPL_COCOA
1240 /* Started from GUI? */
1241 /* FIXME: Do the right thing if getenv returns NULL, or if
1243 if (! inhibit_window_system
&& ! isatty (0))
1244 chdir (getenv ("HOME"));
1245 if (skip_args
< argc
)
1247 if (!strncmp (argv
[skip_args
], "-psn", 4))
1250 chdir (getenv ("HOME"));
1252 else if (skip_args
+1 < argc
&& !strncmp (argv
[skip_args
+1], "-psn", 4))
1255 chdir (getenv ("HOME"));
1260 #endif /* HAVE_NS */
1262 #ifdef HAVE_X_WINDOWS
1263 /* Stupid kludge to catch command-line display spec. We can't
1264 handle this argument entirely in window system dependent code
1265 because we don't even know which window system dependent code
1266 to run until we've recognized this argument. */
1268 char *displayname
= 0;
1269 int count_before
= skip_args
;
1271 /* Skip any number of -d options, but only use the last one. */
1274 int count_before_this
= skip_args
;
1276 if (argmatch (argv
, argc
, "-d", "--display", 3, &displayname
, &skip_args
))
1278 else if (argmatch (argv
, argc
, "-display", 0, 3, &displayname
, &skip_args
))
1283 count_before
= count_before_this
;
1286 /* If we have the form --display=NAME,
1287 convert it into -d name.
1288 This requires inserting a new element into argv. */
1289 if (displayname
&& count_before
< skip_args
)
1291 if (skip_args
== count_before
+ 1)
1293 memmove (argv
+ count_before
+ 3, argv
+ count_before
+ 2,
1294 (argc
- (count_before
+ 2)) * sizeof *argv
);
1295 argv
[count_before
+ 2] = displayname
;
1298 argv
[count_before
+ 1] = (char *) "-d";
1303 if (argmatch (argv
, argc
, "-Q", "--quick", 3, NULL
, &skip_args
)
1304 || argmatch (argv
, argc
, "-quick", 0, 2, NULL
, &skip_args
))
1308 /* Don't actually discard this arg. */
1309 skip_args
= count_before
;
1311 #else /* !HAVE_X_WINDOWS */
1314 int count_before
= skip_args
;
1316 if (argmatch (argv
, argc
, "-Q", "--quick", 3, NULL
, &skip_args
)
1317 || argmatch (argv
, argc
, "-quick", 0, 2, NULL
, &skip_args
))
1320 skip_args
= count_before
;
1324 /* argmatch must not be used after here,
1325 except when building temacs
1326 because the -d argument has not been skipped in skip_args. */
1329 /* Call early 'cause init_environment needs it. */
1331 /* Set defaults for several environment variables. */
1333 init_environment (argc
, argv
, skip_args
);
1338 #ifdef HAVE_GFILENOTIFY
1339 globals_of_gfilenotify ();
1344 #ifdef HAVE_W32NOTIFY
1345 globals_of_w32notify ();
1347 /* Initialize environment from registry settings. */
1348 init_environment (argv
);
1349 init_ntproc (dumping
); /* must precede init_editfns. */
1352 /* Initialize and GC-protect Vinitial_environment and
1353 Vprocess_environment before set_initial_environment fills them
1356 syms_of_callproc ();
1357 /* egetenv is a pretty low-level facility, which may get called in
1358 many circumstances; it seems flimsy to put off initializing it
1359 until calling init_callproc. Do not do it when dumping. */
1361 set_initial_environment ();
1363 /* AIX crashes are reported in system versions 3.2.3 and 3.2.4
1364 if this is not done. Do it after set_global_environment so that we
1365 don't pollute Vglobal_environment. */
1366 /* Setting LANG here will defeat the startup locale processing... */
1371 /* Init buffer storage and default directory of main buffer. */
1372 init_buffer (initialized
);
1374 init_callproc_1 (); /* Must precede init_cmdargs and init_sys_modes. */
1376 /* Must precede init_lread. */
1377 init_cmdargs (argc
, argv
, skip_args
, original_pwd
);
1381 /* Erase any pre-dump messages in the message log, to avoid confusion. */
1382 Lisp_Object old_log_max
;
1383 old_log_max
= Vmessage_log_max
;
1384 XSETFASTINT (Vmessage_log_max
, 0);
1385 message_dolog ("", 0, 1, 0);
1386 Vmessage_log_max
= old_log_max
;
1389 init_callproc (); /* Must follow init_cmdargs but not init_sys_modes. */
1393 /* Check to see if Emacs has been installed correctly. */
1394 check_windows_init_file ();
1397 /* Intern the names of all standard functions and variables;
1398 define standard keys. */
1402 /* The basic levels of Lisp must come first. Note that
1403 syms_of_data and some others have already been called. */
1408 syms_of_floatfns ();
1411 syms_of_bytecode ();
1413 syms_of_casefiddle ();
1415 syms_of_category ();
1417 syms_of_character ();
1424 syms_of_filelock ();
1427 /* syms_of_keymap (); */
1435 syms_of_terminal ();
1441 syms_of_textprop ();
1442 syms_of_composite ();
1445 #endif /* WINDOWSNT */
1452 #ifdef HAVE_WINDOW_SYSTEM
1455 #endif /* HAVE_WINDOW_SYSTEM */
1456 #ifdef HAVE_X_WINDOWS
1461 syms_of_xsettings ();
1468 #endif /* HAVE_X_WINDOWS */
1475 syms_of_decompress ();
1485 #endif /* HAVE_NTGUI */
1487 #if defined WINDOWSNT || defined HAVE_NTGUI
1488 syms_of_w32select ();
1495 syms_of_win16select ();
1502 syms_of_nsselect ();
1504 #endif /* HAVE_NS */
1510 #ifdef HAVE_GFILENOTIFY
1511 syms_of_gfilenotify ();
1512 #endif /* HAVE_GFILENOTIFY */
1516 #endif /* HAVE_INOTIFY */
1519 syms_of_dbusbind ();
1520 #endif /* HAVE_DBUS */
1524 #ifdef HAVE_W32NOTIFY
1525 syms_of_w32notify ();
1526 #endif /* HAVE_W32NOTIFY */
1527 #endif /* WINDOWSNT */
1529 syms_of_profiler ();
1531 keys_of_casefiddle ();
1534 keys_of_keyboard ();
1540 /* Initialization that must be done even if the global variable
1541 initialized is non zero. */
1543 globals_of_w32font ();
1544 globals_of_w32fns ();
1545 globals_of_w32menu ();
1546 #endif /* HAVE_NTGUI */
1548 #if defined WINDOWSNT || defined HAVE_NTGUI
1549 globals_of_w32select ();
1555 init_editfns (); /* init_process_emacs uses Voperating_system_release. */
1556 init_process_emacs (); /* init_display uses add_keyboard_wait_descriptor. */
1557 init_keyboard (); /* This too must precede init_sys_modes. */
1558 if (!noninteractive
)
1559 init_display (); /* Determine terminal type. Calls init_sys_modes. */
1562 init_crit (); /* w32notify.c needs this in batch mode. */
1563 #endif /* HAVE_W32NOTIFY */
1565 #ifdef HAVE_WINDOW_SYSTEM
1567 #endif /* HAVE_WINDOW_SYSTEM */
1575 /* Handle -l loadup, args passed by Makefile. */
1576 if (argmatch (argv
, argc
, "-l", "--load", 3, &file
, &skip_args
))
1579 char file_utf8
[MAX_UTF8_PATH
];
1581 if (filename_from_ansi (file
, file_utf8
) == 0)
1584 Vtop_level
= list2 (intern_c_string ("load"),
1585 build_unibyte_string (file
));
1587 /* Unless next switch is -nl, load "loadup.el" first thing. */
1589 Vtop_level
= list2 (intern_c_string ("load"),
1590 build_string ("loadup.el"));
1597 /* If the execution TZ happens to be the same as the dump TZ,
1598 change it to some other value and then change it back,
1599 to force the underlying implementation to reload the TZ info.
1600 This is needed on implementations that load TZ info from files,
1601 since the TZ file contents may differ between dump and execution. */
1602 char *tz
= getenv ("TZ");
1603 if (tz
&& !strcmp (tz
, dump_tz
))
1613 /* Set up for profiling. This is known to work on FreeBSD,
1614 GNU/Linux and MinGW. It might work on some other systems too.
1615 Give it a try and tell us if it works on your system. To compile
1616 for profiling, use the configure option --enable-profiling. */
1617 #if defined (__FreeBSD__) || defined (GNU_LINUX) || defined (__MINGW32__)
1622 extern unsigned char etext
asm ("etext");
1628 monstartup ((uintptr_t) __executable_start
, (uintptr_t) &etext
);
1637 #ifdef LOCALTIME_CACHE
1638 /* Some versions of localtime have a bug. They cache the value of the time
1639 zone rather than looking it up every time. Since localtime() is
1640 called to bolt the undumping time into the undumped emacs, this
1641 results in localtime ignoring the TZ environment variable.
1642 This flushes the new TZ value into localtime. */
1644 #endif /* defined (LOCALTIME_CACHE) */
1646 /* Enter editor command loop. This never returns. */
1652 /* Sort the args so we can find the most important ones
1653 at the beginning of argv. */
1655 /* First, here's a table of all the standard options. */
1657 struct standard_args
1660 const char *longname
;
1665 static const struct standard_args standard_args
[] =
1667 { "-version", "--version", 150, 0 },
1668 { "-chdir", "--chdir", 130, 1 },
1669 { "-t", "--terminal", 120, 1 },
1670 { "-nw", "--no-window-system", 110, 0 },
1671 { "-nw", "--no-windows", 110, 0 },
1672 { "-batch", "--batch", 100, 0 },
1673 { "-script", "--script", 100, 1 },
1674 { "-daemon", "--daemon", 99, 0 },
1675 { "-help", "--help", 90, 0 },
1676 { "-nl", "--no-loadup", 70, 0 },
1677 { "-nsl", "--no-site-lisp", 65, 0 },
1678 /* -d must come last before the options handled in startup.el. */
1679 { "-d", "--display", 60, 1 },
1680 { "-display", 0, 60, 1 },
1681 /* Now for the options handled in `command-line' (startup.el). */
1682 /* (Note that to imply -nsl, -Q is partially handled here.) */
1683 { "-Q", "--quick", 55, 0 },
1684 { "-quick", 0, 55, 0 },
1685 { "-q", "--no-init-file", 50, 0 },
1686 { "-no-init-file", 0, 50, 0 },
1687 { "-no-site-file", "--no-site-file", 40, 0 },
1688 { "-u", "--user", 30, 1 },
1689 { "-user", 0, 30, 1 },
1690 { "-debug-init", "--debug-init", 20, 0 },
1691 { "-iconic", "--iconic", 15, 0 },
1692 { "-D", "--basic-display", 12, 0},
1693 { "-basic-display", 0, 12, 0},
1694 { "-nbc", "--no-blinking-cursor", 12, 0 },
1695 /* Now for the options handled in `command-line-1' (startup.el). */
1696 { "-nbi", "--no-bitmap-icon", 10, 0 },
1697 { "-bg", "--background-color", 10, 1 },
1698 { "-background", 0, 10, 1 },
1699 { "-fg", "--foreground-color", 10, 1 },
1700 { "-foreground", 0, 10, 1 },
1701 { "-bd", "--border-color", 10, 1 },
1702 { "-bw", "--border-width", 10, 1 },
1703 { "-ib", "--internal-border", 10, 1 },
1704 { "-ms", "--mouse-color", 10, 1 },
1705 { "-cr", "--cursor-color", 10, 1 },
1706 { "-fn", "--font", 10, 1 },
1707 { "-font", 0, 10, 1 },
1708 { "-fs", "--fullscreen", 10, 0 },
1709 { "-fw", "--fullwidth", 10, 0 },
1710 { "-fh", "--fullheight", 10, 0 },
1711 { "-mm", "--maximized", 10, 0 },
1712 { "-g", "--geometry", 10, 1 },
1713 { "-geometry", 0, 10, 1 },
1714 { "-T", "--title", 10, 1 },
1715 { "-title", 0, 10, 1 },
1716 { "-name", "--name", 10, 1 },
1717 { "-xrm", "--xrm", 10, 1 },
1718 { "-parent-id", "--parent-id", 10, 1 },
1719 { "-r", "--reverse-video", 5, 0 },
1721 { "-reverse", 0, 5, 0 },
1722 { "-hb", "--horizontal-scroll-bars", 5, 0 },
1723 { "-vb", "--vertical-scroll-bars", 5, 0 },
1724 { "-color", "--color", 5, 0},
1725 { "-no-splash", "--no-splash", 3, 0 },
1726 { "-no-desktop", "--no-desktop", 3, 0 },
1728 { "-NSAutoLaunch", 0, 5, 1 },
1729 { "-NXAutoLaunch", 0, 5, 1 },
1730 { "-_NSMachLaunch", 0, 85, 1 },
1731 { "-MachLaunch", 0, 85, 1 },
1732 { "-macosx", 0, 85, 0 },
1733 { "-NSHost", 0, 85, 1 },
1735 /* These have the same priority as ordinary file name args,
1736 so they are not reordered with respect to those. */
1737 { "-L", "--directory", 0, 1 },
1738 { "-directory", 0, 0, 1 },
1739 { "-l", "--load", 0, 1 },
1740 { "-load", 0, 0, 1 },
1741 /* This has no longname, because using --scriptload confuses sort_args,
1742 because then the --script long option seems to match twice; ie
1743 you can't have a long option which is a prefix of another long
1744 option. In any case, this is entirely an internal option. */
1745 { "-scriptload", NULL
, 0, 1 },
1746 { "-f", "--funcall", 0, 1 },
1747 { "-funcall", 0, 0, 1 },
1748 { "-eval", "--eval", 0, 1 },
1749 { "-execute", "--execute", 0, 1 },
1750 { "-find-file", "--find-file", 0, 1 },
1751 { "-visit", "--visit", 0, 1 },
1752 { "-file", "--file", 0, 1 },
1753 { "-insert", "--insert", 0, 1 },
1755 { "-NXOpen", 0, 0, 1 },
1756 { "-NXOpenTemp", 0, 0, 1 },
1757 { "-NSOpen", 0, 0, 1 },
1758 { "-NSOpenTemp", 0, 0, 1 },
1759 { "-GSFilePath", 0, 0, 1 },
1761 /* This should be processed after ordinary file name args and the like. */
1762 { "-kill", "--kill", -10, 0 },
1765 /* Reorder the elements of ARGV (assumed to have ARGC elements)
1766 so that the highest priority ones come first.
1767 Do not change the order of elements of equal priority.
1768 If an option takes an argument, keep it and its argument together.
1770 If an option that takes no argument appears more
1771 than once, eliminate all but one copy of it. */
1774 sort_args (int argc
, char **argv
)
1776 char **new = xmalloc (argc
* sizeof *new);
1777 /* For each element of argv,
1778 the corresponding element of options is:
1779 0 for an option that takes no arguments,
1780 1 for an option that takes one argument, etc.
1781 -1 for an ordinary non-option argument. */
1782 int *options
= xnmalloc_atomic (argc
, sizeof *options
);
1783 int *priority
= xnmalloc_atomic (argc
, sizeof *priority
);
1785 int incoming_used
= 1;
1789 /* Categorize all the options,
1790 and figure out which argv elts are option arguments. */
1791 for (from
= 1; from
< argc
; from
++)
1795 if (argv
[from
][0] == '-')
1799 /* If we have found "--", don't consider
1800 any more arguments as options. */
1801 if (argv
[from
][1] == '-' && argv
[from
][2] == 0)
1803 /* Leave the "--", and everything following it, at the end. */
1804 for (; from
< argc
; from
++)
1806 priority
[from
] = -100;
1812 /* Look for a match with a known old-fashioned option. */
1813 for (i
= 0; i
< ARRAYELTS (standard_args
); i
++)
1814 if (!strcmp (argv
[from
], standard_args
[i
].name
))
1816 options
[from
] = standard_args
[i
].nargs
;
1817 priority
[from
] = standard_args
[i
].priority
;
1818 if (from
+ standard_args
[i
].nargs
>= argc
)
1819 fatal ("Option `%s' requires an argument\n", argv
[from
]);
1820 from
+= standard_args
[i
].nargs
;
1824 /* Look for a match with a known long option.
1825 MATCH is -1 if no match so far, -2 if two or more matches so far,
1826 >= 0 (the table index of the match) if just one match so far. */
1827 if (argv
[from
][1] == '-')
1829 char const *equals
= strchr (argv
[from
], '=');
1831 equals
? equals
- argv
[from
] : strlen (argv
[from
]);
1835 for (i
= 0; i
< ARRAYELTS (standard_args
); i
++)
1836 if (standard_args
[i
].longname
1837 && !strncmp (argv
[from
], standard_args
[i
].longname
,
1846 /* If we found exactly one match, use that. */
1849 options
[from
] = standard_args
[match
].nargs
;
1850 priority
[from
] = standard_args
[match
].priority
;
1851 /* If --OPTION=VALUE syntax is used,
1852 this option uses just one argv element. */
1855 if (from
+ options
[from
] >= argc
)
1856 fatal ("Option `%s' requires an argument\n", argv
[from
]);
1857 from
+= options
[from
];
1859 /* FIXME When match < 0, shouldn't there be some error,
1860 or at least indication to the user that there was a
1867 /* Copy the arguments, in order of decreasing priority, to NEW. */
1869 while (incoming_used
< argc
)
1872 int best_priority
= -9999;
1874 /* Find the highest priority remaining option.
1875 If several have equal priority, take the first of them. */
1876 for (from
= 1; from
< argc
; from
++)
1878 if (argv
[from
] != 0 && priority
[from
] > best_priority
)
1880 best_priority
= priority
[from
];
1883 /* Skip option arguments--they are tied to the options. */
1884 if (options
[from
] > 0)
1885 from
+= options
[from
];
1891 /* Copy the highest priority remaining option, with its args, to NEW.
1892 Unless it is a duplicate of the previous one. */
1893 if (! (options
[best
] == 0
1894 && ! strcmp (new[to
- 1], argv
[best
])))
1896 new[to
++] = argv
[best
];
1897 for (i
= 0; i
< options
[best
]; i
++)
1898 new[to
++] = argv
[best
+ i
+ 1];
1901 incoming_used
+= 1 + (options
[best
] > 0 ? options
[best
] : 0);
1903 /* Clear out this option in ARGV. */
1905 for (i
= 0; i
< options
[best
]; i
++)
1906 argv
[best
+ i
+ 1] = 0;
1909 /* If duplicate options were deleted, fill up extra space with null ptrs. */
1913 memcpy (argv
, new, sizeof (char *) * argc
);
1920 DEFUN ("kill-emacs", Fkill_emacs
, Skill_emacs
, 0, 1, "P",
1921 doc
: /* Exit the Emacs job and kill it.
1922 If ARG is an integer, return ARG as the exit program code.
1923 If ARG is a string, stuff it as keyboard input.
1925 This function is called upon receipt of the signals SIGTERM
1926 or SIGHUP, and upon SIGINT in batch mode.
1928 The value of `kill-emacs-hook', if not void,
1929 is a list of functions (of no args),
1930 all of which are called before Emacs is actually killed. */)
1933 struct gcpro gcpro1
;
1941 /* Fsignal calls emacs_abort () if it sees that waiting_for_input is
1943 waiting_for_input
= 0;
1944 Frun_hooks (1, &Qkill_emacs_hook
);
1947 #ifdef HAVE_X_WINDOWS
1948 /* Transfer any clipboards we own to the clipboard manager. */
1949 x_clipboard_manager_save_all ();
1952 shut_down_emacs (0, STRINGP (arg
) ? arg
: Qnil
);
1955 ns_release_autorelease_pool (ns_pool
);
1958 /* If we have an auto-save list file,
1959 kill it because we are exiting Emacs deliberately (not crashing).
1960 Do it after shut_down_emacs, which does an auto-save. */
1961 if (STRINGP (Vauto_save_list_file_name
))
1963 Lisp_Object listfile
;
1964 listfile
= Fexpand_file_name (Vauto_save_list_file_name
, Qnil
);
1965 unlink (SSDATA (listfile
));
1969 exit_code
= (XINT (arg
) < 0
1970 ? XINT (arg
) | INT_MIN
1971 : XINT (arg
) & INT_MAX
);
1973 exit_code
= EXIT_SUCCESS
;
1978 /* Perform an orderly shutdown of Emacs. Autosave any modified
1979 buffers, kill any child processes, clean up the terminal modes (if
1980 we're in the foreground), and other stuff like that. Don't perform
1981 any redisplay; this may be called when Emacs is shutting down in
1982 the background, or after its X connection has died.
1984 If SIG is a signal number, print a message for it.
1986 This is called by fatal signal handlers, X protocol error handlers,
1990 shut_down_emacs (int sig
, Lisp_Object stuff
)
1992 /* Prevent running of hooks from now on. */
1995 /* Don't update display from now on. */
1996 Vinhibit_redisplay
= Qt
;
1998 /* If we are controlling the terminal, reset terminal modes. */
2001 pid_t pgrp
= getpgrp ();
2002 pid_t tpgrp
= tcgetpgrp (0);
2003 if ((tpgrp
!= -1) && tpgrp
== pgrp
)
2005 reset_all_sys_modes ();
2006 if (sig
&& sig
!= SIGTERM
)
2008 static char const format
[] = "Fatal error %d: ";
2009 char buf
[sizeof format
- 2 + INT_STRLEN_BOUND (int)];
2010 int buflen
= sprintf (buf
, format
, sig
);
2011 char const *sig_desc
= safe_strsignal (sig
);
2012 emacs_write (STDERR_FILENO
, buf
, buflen
);
2013 emacs_write (STDERR_FILENO
, sig_desc
, strlen (sig_desc
));
2019 reset_all_sys_modes ();
2022 stuff_buffered_input (stuff
);
2024 inhibit_sentinels
= 1;
2025 kill_buffer_processes (Qnil
);
2026 Fdo_auto_save (Qt
, Qnil
);
2028 unlock_all_files ();
2030 /* There is a tendency for a SIGIO signal to arrive within exit,
2031 and cause a SIGHUP because the input descriptor is already closed. */
2035 /* Do this only if terminating normally, we want glyph matrices
2036 etc. in a core dump. */
2037 if (sig
== 0 || sig
== SIGTERM
)
2039 check_glyph_memory ();
2040 check_message_stack ();
2048 ns_term_shutdown (sig
);
2052 xml_cleanup_parser ();
2066 DEFUN ("dump-emacs", Fdump_emacs
, Sdump_emacs
, 2, 2, 0,
2067 doc
: /* Dump current state of Emacs into executable file FILENAME.
2068 Take symbols from SYMFILE (presumably the file you executed to run Emacs).
2069 This is used in the file `loadup.el' when building Emacs.
2071 You must run Emacs in batch mode in order to dump it. */)
2072 (Lisp_Object filename
, Lisp_Object symfile
)
2076 ptrdiff_t count
= SPECPDL_INDEX ();
2080 if (! noninteractive
)
2081 error ("Dumping Emacs works only in batch mode");
2084 error ("Emacs can be dumped only once");
2088 /* Warn if the gap between BSS end and heap start is larger than this. */
2089 # define MAX_HEAP_BSS_DIFF (1024*1024)
2091 if (heap_bss_diff
> MAX_HEAP_BSS_DIFF
)
2093 fprintf (stderr
, "**************************************************\n");
2094 fprintf (stderr
, "Warning: Your system has a gap between BSS and the\n");
2095 fprintf (stderr
, "heap (%"pMu
" bytes). This usually means that exec-shield\n",
2097 fprintf (stderr
, "or something similar is in effect. The dump may\n");
2098 fprintf (stderr
, "fail because of this. See the section about\n");
2099 fprintf (stderr
, "exec-shield in etc/PROBLEMS for more information.\n");
2100 fprintf (stderr
, "**************************************************\n");
2102 #endif /* GNU_LINUX */
2104 /* Bind `command-line-processed' to nil before dumping,
2105 so that the dumped Emacs will process its command line
2106 and set up to work with X windows if appropriate. */
2107 symbol
= intern ("command-line-processed");
2108 specbind (symbol
, Qnil
);
2110 CHECK_STRING (filename
);
2111 filename
= Fexpand_file_name (filename
, Qnil
);
2112 filename
= ENCODE_FILE (filename
);
2113 if (!NILP (symfile
))
2115 CHECK_STRING (symfile
);
2116 if (SCHARS (symfile
))
2118 symfile
= Fexpand_file_name (symfile
, Qnil
);
2119 symfile
= ENCODE_FILE (symfile
);
2124 Vpurify_flag
= Qnil
;
2127 set_time_zone_rule (dump_tz
);
2128 #ifndef LOCALTIME_CACHE
2129 /* Force a tz reload, since set_time_zone_rule doesn't. */
2135 /* Tell malloc where start of impure now is. */
2136 /* Also arrange for warnings when nearly out of space. */
2137 #ifndef SYSTEM_MALLOC
2139 /* On Windows, this was done before dumping, and that once suffices.
2140 Meanwhile, my_edata is not valid on Windows. */
2142 extern char my_edata
[];
2143 memory_warnings (my_edata
, malloc_warning
);
2145 #endif /* not WINDOWSNT */
2146 #endif /* not SYSTEM_MALLOC */
2147 #ifdef DOUG_LEA_MALLOC
2148 malloc_state_ptr
= malloc_get_state ();
2151 unexec (SSDATA (filename
), !NILP (symfile
) ? SSDATA (symfile
) : 0);
2153 #ifdef DOUG_LEA_MALLOC
2154 free (malloc_state_ptr
);
2158 Vlibrary_cache
= Qnil
;
2160 #ifdef HAVE_WINDOW_SYSTEM
2161 reset_image_types ();
2166 return unbind_to (count
, Qnil
);
2169 #endif /* not CANNOT_DUMP */
2172 /* Recover from setlocale (LC_ALL, ""). */
2176 /* The Emacs Lisp reader needs LC_NUMERIC to be "C",
2177 so that numbers are read and printed properly for Emacs Lisp. */
2178 setlocale (LC_NUMERIC
, "C");
2181 /* Set system locale CATEGORY, with previous locale *PLOCALE, to
2184 synchronize_locale (int category
, Lisp_Object
*plocale
, Lisp_Object desired_locale
)
2186 if (! EQ (*plocale
, desired_locale
))
2188 *plocale
= desired_locale
;
2189 setlocale (category
, (STRINGP (desired_locale
)
2190 ? SSDATA (desired_locale
)
2195 /* Set system time locale to match Vsystem_time_locale, if possible. */
2197 synchronize_system_time_locale (void)
2199 synchronize_locale (LC_TIME
, &Vprevious_system_time_locale
,
2200 Vsystem_time_locale
);
2203 /* Set system messages locale to match Vsystem_messages_locale, if
2206 synchronize_system_messages_locale (void)
2209 synchronize_locale (LC_MESSAGES
, &Vprevious_system_messages_locale
,
2210 Vsystem_messages_locale
);
2213 #endif /* HAVE_SETLOCALE */
2217 decode_env_path (const char *evarname
, const char *defalt
, bool empty
)
2219 const char *path
, *p
;
2220 Lisp_Object lpath
, element
, tem
;
2221 /* Default is to use "." for empty path elements.
2222 But if argument EMPTY is true, use nil instead. */
2223 Lisp_Object empty_element
= empty
? Qnil
: build_string (".");
2226 static const char *emacs_dir_env
= "%emacs_dir%/";
2227 const size_t emacs_dir_len
= strlen (emacs_dir_env
);
2228 const char *edir
= egetenv ("emacs_dir");
2229 char emacs_dir
[MAX_UTF8_PATH
];
2231 /* egetenv looks in process-environment, which holds the variables
2232 in their original system-locale encoding. We need emacs_dir to
2235 filename_from_ansi (edir
, emacs_dir
);
2238 /* It's okay to use getenv here, because this function is only used
2239 to initialize variables when Emacs starts up, and isn't called
2242 path
= getenv (evarname
);
2253 /* Ensure values from the environment use the proper directory separator. */
2259 char *path_utf8
, *q
, *d
;
2262 /* Convert each element of PATH to UTF-8. */
2263 p
= path_copy
= alloca (strlen (path
) + 1);
2264 strcpy (path_copy
, path
);
2265 d
= path_utf8
= alloca (4 * strlen (path
) + 1);
2268 q
= _mbschr (p
, SEPCHAR
);
2271 cnv_result
= filename_from_ansi (p
, d
);
2276 /* If conversion of this PATH elements fails, make sure
2277 destination pointer will stay put, thus effectively
2278 ignoring the offending element. */
2279 if (cnv_result
== 0)
2285 else if (cnv_result
!= 0 && d
> path_utf8
)
2286 d
[-1] = '\0'; /* remove last semi-colon and null-terminate PATH */
2288 path_copy
= path_utf8
;
2290 path_copy
= alloca (strlen (path
) + 1);
2291 strcpy (path_copy
, path
);
2293 dostounix_filename (path_copy
);
2300 p
= strchr (path
, SEPCHAR
);
2302 p
= path
+ strlen (path
);
2303 element
= (p
- path
? make_unibyte_string (path
, p
- path
)
2305 if (! NILP (element
))
2308 /* Relative file names in the default path are interpreted as
2309 being relative to $emacs_dir. */
2310 if (edir
&& defaulted
2311 && strncmp (path
, emacs_dir_env
, emacs_dir_len
) == 0)
2312 element
= Fexpand_file_name (Fsubstring
2314 make_number (emacs_dir_len
),
2316 build_unibyte_string (emacs_dir
));
2319 /* Add /: to the front of the name
2320 if it would otherwise be treated as magic. */
2321 tem
= Ffind_file_name_handler (element
, Qt
);
2323 /* However, if the handler says "I'm safe",
2324 don't bother adding /:. */
2328 prop
= Fget (tem
, intern ("safe-magic"));
2334 element
= concat2 (build_string ("/:"), element
);
2335 } /* !NILP (element) */
2337 lpath
= Fcons (element
, lpath
);
2343 return Fnreverse (lpath
);
2346 DEFUN ("daemonp", Fdaemonp
, Sdaemonp
, 0, 0, 0,
2347 doc
: /* Return non-nil if the current emacs process is a daemon.
2348 If the daemon was given a name argument, return that name. */)
2353 return build_string (daemon_name
);
2360 DEFUN ("daemon-initialized", Fdaemon_initialized
, Sdaemon_initialized
, 0, 0, 0,
2361 doc
: /* Mark the Emacs daemon as being initialized.
2362 This finishes the daemonization process by doing the other half of detaching
2363 from the parent process and its tty file descriptors. */)
2370 error ("This function can only be called if emacs is run as a daemon");
2372 if (daemon_pipe
[1] < 0)
2373 error ("The daemon has already been initialized");
2375 if (NILP (Vafter_init_time
))
2376 error ("This function can only be called after loading the init files");
2378 /* Get rid of stdin, stdout and stderr. */
2379 nfd
= emacs_open ("/dev/null", O_RDWR
, 0);
2381 err
|= dup2 (nfd
, 0) < 0;
2382 err
|= dup2 (nfd
, 1) < 0;
2383 err
|= dup2 (nfd
, 2) < 0;
2384 err
|= emacs_close (nfd
) != 0;
2386 /* Closing the pipe will notify the parent that it can exit.
2387 FIXME: In case some other process inherited the pipe, closing it here
2388 won't notify the parent because it's still open elsewhere, so we
2389 additionally send a byte, just to make sure the parent really exits.
2390 Instead, we should probably close the pipe in start-process and
2391 call-process to make sure the pipe is never inherited by
2393 err
|= write (daemon_pipe
[1], "\n", 1) < 0;
2394 err
|= emacs_close (daemon_pipe
[1]) != 0;
2395 /* Set it to an invalid value so we know we've already run this function. */
2396 daemon_pipe
[1] = -1;
2399 error ("I/O error during daemon initialization");
2404 syms_of_emacs (void)
2406 DEFSYM (Qfile_name_handler_alist
, "file-name-handler-alist");
2407 DEFSYM (Qrisky_local_variable
, "risky-local-variable");
2408 DEFSYM (Qkill_emacs
, "kill-emacs");
2409 DEFSYM (Qkill_emacs_hook
, "kill-emacs-hook");
2412 defsubr (&Sdump_emacs
);
2415 defsubr (&Skill_emacs
);
2417 defsubr (&Sinvocation_name
);
2418 defsubr (&Sinvocation_directory
);
2419 defsubr (&Sdaemonp
);
2420 defsubr (&Sdaemon_initialized
);
2422 DEFVAR_LISP ("command-line-args", Vcommand_line_args
,
2423 doc
: /* Args passed by shell to Emacs, as a list of strings.
2424 Many arguments are deleted from the list as they are processed. */);
2426 DEFVAR_LISP ("system-type", Vsystem_type
,
2427 doc
: /* The value is a symbol indicating the type of operating system you are using.
2429 `gnu' compiled for a GNU Hurd system.
2430 `gnu/linux' compiled for a GNU/Linux system.
2431 `gnu/kfreebsd' compiled for a GNU system with a FreeBSD kernel.
2432 `darwin' compiled for Darwin (GNU-Darwin, Mac OS X, ...).
2433 `ms-dos' compiled as an MS-DOS application.
2434 `windows-nt' compiled as a native W32 application.
2435 `cygwin' compiled using the Cygwin library.
2436 Anything else (in Emacs 24.1, the possibilities are: aix, berkeley-unix,
2437 hpux, irix, usg-unix-v) indicates some sort of Unix system. */);
2438 Vsystem_type
= intern_c_string (SYSTEM_TYPE
);
2439 /* See configure.ac (and config.nt) for the possible SYSTEM_TYPEs. */
2441 DEFVAR_LISP ("system-configuration", Vsystem_configuration
,
2442 doc
: /* Value is string indicating configuration Emacs was built for.
2443 On MS-Windows, the value reflects the OS flavor and version on which
2444 Emacs is running. */);
2445 Vsystem_configuration
= build_string (EMACS_CONFIGURATION
);
2447 DEFVAR_LISP ("system-configuration-options", Vsystem_configuration_options
,
2448 doc
: /* String containing the configuration options Emacs was built with. */);
2449 Vsystem_configuration_options
= build_string (EMACS_CONFIG_OPTIONS
);
2451 DEFVAR_LISP ("system-configuration-features", Vsystem_configuration_features
,
2452 doc
: /* String listing some of the main features this Emacs was compiled with.
2453 An element of the form \"FOO\" generally means that HAVE_FOO was
2454 defined during the build. */);
2455 Vsystem_configuration_features
= build_string (EMACS_CONFIG_FEATURES
);
2457 DEFVAR_BOOL ("noninteractive", noninteractive1
,
2458 doc
: /* Non-nil means Emacs is running without interactive terminal. */);
2460 DEFVAR_LISP ("kill-emacs-hook", Vkill_emacs_hook
,
2461 doc
: /* Hook run when `kill-emacs' is called.
2462 Since `kill-emacs' may be invoked when the terminal is disconnected (or
2463 in other similar situations), functions placed on this hook should not
2464 expect to be able to interact with the user. To ask for confirmation,
2465 see `kill-emacs-query-functions' instead.
2467 Before Emacs 24.1, the hook was not run in batch mode, i.e., if
2468 `noninteractive' was non-nil. */);
2469 Vkill_emacs_hook
= Qnil
;
2471 DEFVAR_LISP ("path-separator", Vpath_separator
,
2472 doc
: /* String containing the character that separates directories in
2473 search paths, such as PATH and other similar environment variables. */);
2476 Vpath_separator
= make_string (&c
, 1);
2479 DEFVAR_LISP ("invocation-name", Vinvocation_name
,
2480 doc
: /* The program name that was used to run Emacs.
2481 Any directory names are omitted. */);
2483 DEFVAR_LISP ("invocation-directory", Vinvocation_directory
,
2484 doc
: /* The directory in which the Emacs executable was found, to run it.
2485 The value is nil if that directory's name is not known. */);
2487 DEFVAR_LISP ("installation-directory", Vinstallation_directory
,
2488 doc
: /* A directory within which to look for the `lib-src' and `etc' directories.
2489 In an installed Emacs, this is normally nil. It is non-nil if
2490 both `lib-src' (on MS-DOS, `info') and `etc' directories are found
2491 within the variable `invocation-directory' or its parent. For example,
2492 this is the case when running an uninstalled Emacs executable from its
2493 build directory. */);
2494 Vinstallation_directory
= Qnil
;
2496 DEFVAR_LISP ("system-messages-locale", Vsystem_messages_locale
,
2497 doc
: /* System locale for messages. */);
2498 Vsystem_messages_locale
= Qnil
;
2500 DEFVAR_LISP ("previous-system-messages-locale",
2501 Vprevious_system_messages_locale
,
2502 doc
: /* Most recently used system locale for messages. */);
2503 Vprevious_system_messages_locale
= Qnil
;
2505 DEFVAR_LISP ("system-time-locale", Vsystem_time_locale
,
2506 doc
: /* System locale for time. */);
2507 Vsystem_time_locale
= Qnil
;
2509 DEFVAR_LISP ("previous-system-time-locale", Vprevious_system_time_locale
,
2510 doc
: /* Most recently used system locale for time. */);
2511 Vprevious_system_time_locale
= Qnil
;
2513 DEFVAR_LISP ("before-init-time", Vbefore_init_time
,
2514 doc
: /* Value of `current-time' before Emacs begins initialization. */);
2515 Vbefore_init_time
= Qnil
;
2517 DEFVAR_LISP ("after-init-time", Vafter_init_time
,
2518 doc
: /* Value of `current-time' after loading the init files.
2519 This is nil during initialization. */);
2520 Vafter_init_time
= Qnil
;
2522 DEFVAR_BOOL ("inhibit-x-resources", inhibit_x_resources
,
2523 doc
: /* If non-nil, X resources, Windows Registry settings, and NS defaults are not used. */);
2524 inhibit_x_resources
= 0;
2526 DEFVAR_LISP ("emacs-copyright", Vemacs_copyright
,
2527 doc
: /* Short copyright string for this version of Emacs. */);
2528 Vemacs_copyright
= build_string (emacs_copyright
);
2530 DEFVAR_LISP ("emacs-version", Vemacs_version
,
2531 doc
: /* Version numbers of this version of Emacs. */);
2532 Vemacs_version
= build_string (emacs_version
);
2534 DEFVAR_LISP ("report-emacs-bug-address", Vreport_emacs_bug_address
,
2535 doc
: /* Address of mailing list for GNU Emacs bugs. */);
2536 Vreport_emacs_bug_address
= build_string (emacs_bugreport
);
2538 DEFVAR_LISP ("dynamic-library-alist", Vdynamic_library_alist
,
2539 doc
: /* Alist of dynamic libraries vs external files implementing them.
2540 Each element is a list (LIBRARY FILE...), where the car is a symbol
2541 representing a supported external library, and the rest are strings giving
2542 alternate filenames for that library.
2544 Emacs tries to load the library from the files in the order they appear on
2545 the list; if none is loaded, the running session of Emacs won't have access
2548 Note that image types `pbm' and `xbm' do not need entries in this variable
2549 because they do not depend on external libraries and are always available.
2551 Also note that this is not a generic facility for accessing external
2552 libraries; only those already known by Emacs will be loaded. */);
2553 Vdynamic_library_alist
= Qnil
;
2554 Fput (intern_c_string ("dynamic-library-alist"), Qrisky_local_variable
, Qt
);
2557 Vlibrary_cache
= Qnil
;
2558 staticpro (&Vlibrary_cache
);