1 /* Fully extensible Emacs, running on Unix, intended for GNU.
3 Copyright (C) 1985-1987, 1993-1995, 1997-1999, 2001-2015 Free Software
6 This file is part of GNU Emacs.
8 GNU Emacs is free software: you can redistribute it and/or modify
9 it under the terms of the GNU General Public License as published by
10 the Free Software Foundation, either version 3 of the License, or
11 (at your option) any later version.
13 GNU Emacs is distributed in the hope that it will be useful,
14 but WITHOUT ANY WARRANTY; without even the implied warranty of
15 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
16 GNU General Public License for more details.
18 You should have received a copy of the GNU General Public License
19 along with GNU Emacs. If not, see <http://www.gnu.org/licenses/>. */
21 #define INLINE EXTERN_INLINE
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"
55 #include <binary-io.h>
58 #ifdef HAVE_WINDOW_SYSTEM
60 #endif /* HAVE_WINDOW_SYSTEM */
63 #include "intervals.h"
64 #include "character.h"
70 #include "blockinput.h"
71 #include "syssignal.h"
74 #include "termhooks.h"
79 #include "composite.h"
80 #include "dispextern.h"
83 #include "sysselect.h"
88 #if (defined PROFILING \
89 && (defined __FreeBSD__ || defined GNU_LINUX || defined __MINGW32__))
90 # include <sys/gmon.h>
91 extern void moncontrol (int mode
);
100 #include <sys/resource.h>
103 #ifdef HAVE_PERSONALITY_LINUX32
104 #include <sys/personality.h>
107 static const char emacs_version
[] = PACKAGE_VERSION
;
108 static const char emacs_copyright
[] = COPYRIGHT
;
109 static const char emacs_bugreport
[] = PACKAGE_BUGREPORT
;
111 /* Empty lisp strings. To avoid having to build any others. */
112 Lisp_Object empty_unibyte_string
, empty_multibyte_string
;
115 /* Cache for externally loaded libraries. */
116 Lisp_Object Vlibrary_cache
;
119 /* Set after Emacs has started up the first time.
120 Prevents reinitialization of the Lisp world and keymaps
121 on subsequent starts. */
124 /* Set to true if this instance of Emacs might dump. */
128 extern void unexec_init_emacs_zone (void);
131 #ifdef DOUG_LEA_MALLOC
132 /* Preserves a pointer to the memory allocated that copies that
133 static data inside glibc's malloc. */
134 static void *malloc_state_ptr
;
135 /* From glibc, a routine that returns a copy of the malloc internal state. */
136 extern void *malloc_get_state (void);
137 /* From glibc, a routine that overwrites the malloc internal state. */
138 extern int malloc_set_state (void *);
139 /* True if the MALLOC_CHECK_ environment variable was set while
140 dumping. Used to work around a bug in glibc's malloc. */
141 static bool malloc_using_checking
;
142 #elif defined HAVE_PTHREAD && !defined SYSTEM_MALLOC && !defined HYBRID_MALLOC
143 extern void malloc_enable_thread (void);
146 /* If true, Emacs should not attempt to use a window-specific code,
147 but instead should use the virtual terminal under which it was started. */
148 bool inhibit_window_system
;
150 /* If true, a filter or a sentinel is running. Tested to save the match
151 data on the first attempt to change it inside asynchronous code. */
152 bool running_asynch_code
;
154 #if defined (HAVE_X_WINDOWS) || defined (HAVE_NS)
155 /* If true, -d was specified, meaning we're using some window system. */
159 /* An address near the bottom of the stack.
160 Tells GC how to save a copy of the stack. */
163 #if defined (DOUG_LEA_MALLOC) || defined (GNU_LINUX)
164 /* The address where the heap starts (from the first sbrk (0) call). */
165 static void *my_heap_start
;
169 /* The gap between BSS end and heap start as far as we can tell. */
170 static uprintmax_t heap_bss_diff
;
173 /* To run as a daemon under Cocoa or Windows, we must do a fork+exec,
176 On Cocoa, CoreFoundation lib fails in forked process:
177 http://developer.apple.com/ReleaseNotes/
178 CoreFoundation/CoreFoundation.html)
180 On Windows, a Cygwin fork child cannot access the USER subsystem.
182 We mark being in the exec'd process by a daemon name argument of
183 form "--daemon=\nFD0,FD1\nNAME" where FD are the pipe file descriptors,
184 NAME is the original daemon name, if any. */
185 #if defined NS_IMPL_COCOA || (defined HAVE_NTGUI && defined CYGWIN)
186 # define DAEMON_MUST_EXEC
189 /* True means running Emacs without interactive terminal. */
192 /* True means remove site-lisp directories from load-path. */
195 /* Name for the server started by the daemon.*/
196 static char *daemon_name
;
199 /* Pipe used to send exit notification to the daemon parent at
203 HANDLE w32_daemon_event
;
206 /* Save argv and argc. */
210 static void sort_args (int argc
, char **argv
);
211 static void syms_of_emacs (void);
213 /* C99 needs each string to be at most 4095 characters, and the usage
214 strings below are split to not overflow this limit. */
215 static char const *const usage_message
[] =
218 Run Emacs, the extensible, customizable, self-documenting real-time\n\
219 display editor. The recommended way to start Emacs for normal editing\n\
220 is with no options at all.\n\
222 Run M-x info RET m emacs RET m emacs invocation RET inside Emacs to\n\
223 read the main documentation for these command-line arguments.\n\
225 Initialization options:\n\
229 --batch do not do interactive display; implies -q\n\
230 --chdir DIR change to directory DIR\n\
231 --daemon start a server in the background\n\
232 --debug-init enable Emacs Lisp debugger for init file\n\
233 --display, -d DISPLAY use X server DISPLAY\n\
236 --no-desktop do not load a saved desktop\n\
237 --no-init-file, -q load neither ~/.emacs nor default.el\n\
238 --no-loadup, -nl do not load loadup.el into bare Emacs\n\
239 --no-site-file do not load site-start.el\n\
240 --no-x-resources do not load X resources\n\
241 --no-site-lisp, -nsl do not add site-lisp directories to load-path\n\
242 --no-splash do not display a splash screen on startup\n\
243 --no-window-system, -nw do not communicate with X, ignoring $DISPLAY\n\
246 --quick, -Q equivalent to:\n\
247 -q --no-site-file --no-site-lisp --no-splash\n\
249 --script FILE run FILE as an Emacs Lisp script\n\
250 --terminal, -t DEVICE use DEVICE for terminal I/O\n\
251 --user, -u USER load ~USER/.emacs instead of your own\n\
257 FILE visit FILE using find-file\n\
258 +LINE go to line LINE in next FILE\n\
259 +LINE:COLUMN go to line LINE, column COLUMN, in next FILE\n\
260 --directory, -L DIR prepend DIR to load-path (with :DIR, append DIR)\n\
261 --eval EXPR evaluate Emacs Lisp expression EXPR\n\
262 --execute EXPR evaluate Emacs Lisp expression EXPR\n\
265 --file FILE visit FILE using find-file\n\
266 --find-file FILE visit FILE using find-file\n\
267 --funcall, -f FUNC call Emacs Lisp function FUNC with no arguments\n\
268 --insert FILE insert contents of FILE into current buffer\n\
269 --kill exit without asking for confirmation\n\
270 --load, -l FILE load Emacs Lisp FILE using the load function\n\
271 --visit FILE visit FILE using find-file\n\
277 --background-color, -bg COLOR window background color\n\
278 --basic-display, -D disable many display features;\n\
279 used for debugging Emacs\n\
280 --border-color, -bd COLOR main border color\n\
281 --border-width, -bw WIDTH width of main border\n\
284 --color, --color=MODE override color mode for character terminals;\n\
285 MODE defaults to `auto', and\n\
286 can also be `never', `always',\n\
287 or a mode name like `ansi8'\n\
288 --cursor-color, -cr COLOR color of the Emacs cursor indicating point\n\
289 --font, -fn FONT default font; must be fixed-width\n\
290 --foreground-color, -fg COLOR window foreground color\n\
293 --fullheight, -fh make the first frame high as the screen\n\
294 --fullscreen, -fs make the first frame fullscreen\n\
295 --fullwidth, -fw make the first frame wide as the screen\n\
296 --maximized, -mm make the first frame maximized\n\
297 --geometry, -g GEOMETRY window geometry\n\
300 --no-bitmap-icon, -nbi do not use picture of gnu for Emacs icon\n\
301 --iconic start Emacs in iconified state\n\
302 --internal-border, -ib WIDTH width between text and main border\n\
303 --line-spacing, -lsp PIXELS additional space to put between lines\n\
304 --mouse-color, -ms COLOR mouse cursor color in Emacs window\n\
305 --name NAME title for initial Emacs frame\n\
308 --no-blinking-cursor, -nbc disable blinking cursor\n\
309 --reverse-video, -r, -rv switch foreground and background\n\
310 --title, -T TITLE title for initial Emacs frame\n\
311 --vertical-scroll-bars, -vb enable vertical scroll bars\n\
312 --xrm XRESOURCES set additional X resources\n\
313 --parent-id XID set parent window\n\
314 --help display this help and exit\n\
315 --version output version information and exit\n\
319 You can generally also specify long option names with a single -; for\n\
320 example, -batch as well as --batch. You can use any unambiguous\n\
321 abbreviation for a --option.\n\
323 Various environment variables and window system resources also affect\n\
324 the operation of Emacs. See the main documentation.\n\
326 Report bugs to " PACKAGE_BUGREPORT
". First, please see the Bugs\n\
327 section of the Emacs manual or the file BUGS.\n"
331 /* True if handling a fatal error already. */
332 bool fatal_error_in_progress
;
335 /* NS autrelease pool, for memory management. */
336 static void *ns_pool
;
341 setlocale (int cat
, char const *locale
)
348 /* Report a fatal error due to signal SIG, output a backtrace of at
349 most BACKTRACE_LIMIT lines, and exit. */
351 terminate_due_to_signal (int sig
, int backtrace_limit
)
353 signal (sig
, SIG_DFL
);
355 /* If fatal error occurs in code below, avoid infinite recursion. */
356 if (! fatal_error_in_progress
)
358 fatal_error_in_progress
= 1;
360 totally_unblock_input ();
361 if (sig
== SIGTERM
|| sig
== SIGHUP
|| sig
== SIGINT
)
362 Fkill_emacs (make_number (sig
));
364 shut_down_emacs (sig
, Qnil
);
365 emacs_backtrace (backtrace_limit
);
368 /* Signal the same code; this time it will really be fatal.
369 Since we're in a signal handler, the signal is blocked, so we
370 have to unblock it if we want to really receive it. */
374 sigemptyset (&unblocked
);
375 sigaddset (&unblocked
, sig
);
376 pthread_sigmask (SIG_UNBLOCK
, &unblocked
, 0);
382 /* This shouldn't be executed, but it prevents a warning. */
386 /* Code for dealing with Lisp access to the Unix command line. */
389 init_cmdargs (int argc
, char **argv
, int skip_args
, char *original_pwd
)
392 Lisp_Object name
, dir
, handler
;
393 ptrdiff_t count
= SPECPDL_INDEX ();
394 Lisp_Object raw_name
;
395 AUTO_STRING (slash_colon
, "/:");
401 /* Must use argv[0] converted to UTF-8, as it begets many standard
402 file and directory names. */
404 char argv0
[MAX_UTF8_PATH
];
406 if (filename_from_ansi (argv
[0], argv0
) == 0)
407 raw_name
= build_unibyte_string (argv0
);
409 raw_name
= build_unibyte_string (argv
[0]);
412 raw_name
= build_unibyte_string (argv
[0]);
415 /* Add /: to the front of the name
416 if it would otherwise be treated as magic. */
417 handler
= Ffind_file_name_handler (raw_name
, Qt
);
418 if (! NILP (handler
))
419 raw_name
= concat2 (slash_colon
, raw_name
);
421 Vinvocation_name
= Ffile_name_nondirectory (raw_name
);
422 Vinvocation_directory
= Ffile_name_directory (raw_name
);
424 /* If we got no directory in argv[0], search PATH to find where
425 Emacs actually came from. */
426 if (NILP (Vinvocation_directory
))
429 int yes
= openp (Vexec_path
, Vinvocation_name
,
430 Vexec_suffixes
, &found
, make_number (X_OK
), false);
433 /* Add /: to the front of the name
434 if it would otherwise be treated as magic. */
435 handler
= Ffind_file_name_handler (found
, Qt
);
436 if (! NILP (handler
))
437 found
= concat2 (slash_colon
, found
);
438 Vinvocation_directory
= Ffile_name_directory (found
);
442 if (!NILP (Vinvocation_directory
)
443 && NILP (Ffile_name_absolute_p (Vinvocation_directory
)))
444 /* Emacs was started with relative path, like ./emacs.
448 original_pwd
? build_unibyte_string (original_pwd
) : Qnil
;
450 Vinvocation_directory
= Fexpand_file_name (Vinvocation_directory
, odir
);
453 Vinstallation_directory
= Qnil
;
455 if (!NILP (Vinvocation_directory
))
457 dir
= Vinvocation_directory
;
459 /* If we are running from the build directory, set DIR to the
460 src subdirectory of the Emacs tree, like on Posix
462 if (SBYTES (dir
) > sizeof ("/i386/") - 1
463 && 0 == strcmp (SSDATA (dir
) + SBYTES (dir
) - sizeof ("/i386/") + 1,
465 dir
= Fexpand_file_name (build_string ("../.."), dir
);
466 #else /* !WINDOWSNT */
468 name
= Fexpand_file_name (Vinvocation_name
, dir
);
471 Lisp_Object tem
, lib_src_exists
;
472 Lisp_Object etc_exists
, info_exists
;
474 /* See if dir contains subdirs for use by Emacs.
475 Check for the ones that would exist in a build directory,
476 not including lisp and info. */
477 tem
= Fexpand_file_name (build_string ("lib-src"), dir
);
478 lib_src_exists
= Ffile_exists_p (tem
);
481 /* MSDOS installations frequently remove lib-src, but we still
482 must set installation-directory, or else info won't find
483 its files (it uses the value of installation-directory). */
484 tem
= Fexpand_file_name (build_string ("info"), dir
);
485 info_exists
= Ffile_exists_p (tem
);
490 if (!NILP (lib_src_exists
) || !NILP (info_exists
))
492 tem
= Fexpand_file_name (build_string ("etc"), dir
);
493 etc_exists
= Ffile_exists_p (tem
);
494 if (!NILP (etc_exists
))
496 Vinstallation_directory
497 = Ffile_name_as_directory (dir
);
502 /* See if dir's parent contains those subdirs. */
503 tem
= Fexpand_file_name (build_string ("../lib-src"), dir
);
504 lib_src_exists
= Ffile_exists_p (tem
);
508 /* See the MSDOS commentary above. */
509 tem
= Fexpand_file_name (build_string ("../info"), dir
);
510 info_exists
= Ffile_exists_p (tem
);
515 if (!NILP (lib_src_exists
) || !NILP (info_exists
))
517 tem
= Fexpand_file_name (build_string ("../etc"), dir
);
518 etc_exists
= Ffile_exists_p (tem
);
519 if (!NILP (etc_exists
))
521 tem
= Fexpand_file_name (build_string (".."), dir
);
522 Vinstallation_directory
523 = Ffile_name_as_directory (tem
);
528 /* If the Emacs executable is actually a link,
529 next try the dir that the link points into. */
530 tem
= Ffile_symlink_p (name
);
533 name
= Fexpand_file_name (tem
, dir
);
534 dir
= Ffile_name_directory (name
);
541 Vcommand_line_args
= Qnil
;
543 for (i
= argc
- 1; i
>= 0; i
--)
545 if (i
== 0 || i
> skip_args
)
546 /* For the moment, we keep arguments as is in unibyte strings.
547 They are decoded in the function command-line after we know
548 locale-coding-system. */
550 = Fcons (build_unibyte_string (argv
[i
]), Vcommand_line_args
);
553 unbind_to (count
, Qnil
);
556 DEFUN ("invocation-name", Finvocation_name
, Sinvocation_name
, 0, 0, 0,
557 doc
: /* Return the program name that was used to run Emacs.
558 Any directory names are omitted. */)
561 return Fcopy_sequence (Vinvocation_name
);
564 DEFUN ("invocation-directory", Finvocation_directory
, Sinvocation_directory
,
566 doc
: /* Return the directory name in which the Emacs executable was located. */)
569 return Fcopy_sequence (Vinvocation_directory
);
573 /* Test whether the next argument in ARGV matches SSTR or a prefix of
574 LSTR (at least MINLEN characters). If so, then if VALPTR is non-null
575 (the argument is supposed to have a value) store in *VALPTR either
576 the next argument or the portion of this one after the equal sign.
577 ARGV is read starting at position *SKIPPTR; this index is advanced
578 by the number of arguments used.
580 Too bad we can't just use getopt for all of this, but we don't have
581 enough information to do it right. */
584 argmatch (char **argv
, int argc
, const char *sstr
, const char *lstr
,
585 int minlen
, char **valptr
, int *skipptr
)
591 /* Don't access argv[argc]; give up in advance. */
592 if (argc
<= *skipptr
+ 1)
595 arg
= argv
[*skipptr
+1];
598 if (strcmp (arg
, sstr
) == 0)
602 *valptr
= argv
[*skipptr
+2];
609 arglen
= (valptr
!= NULL
&& (p
= strchr (arg
, '=')) != NULL
610 ? p
- arg
: strlen (arg
));
611 if (lstr
== 0 || arglen
< minlen
|| strncmp (arg
, lstr
, arglen
) != 0)
613 else if (valptr
== NULL
)
624 else if (argv
[*skipptr
+2] != NULL
)
626 *valptr
= argv
[*skipptr
+2];
636 #ifdef DOUG_LEA_MALLOC
638 /* malloc can be invoked even before main (e.g. by the dynamic
639 linker), so the dumped malloc state must be restored as early as
640 possible using this special hook. */
643 malloc_initialize_hook (void)
647 if (!malloc_using_checking
)
648 /* Work around a bug in glibc's malloc. MALLOC_CHECK_ must be
649 ignored if the heap to be restored was constructed without
650 malloc checking. Can't use unsetenv, since that calls malloc. */
654 for (p
= environ
; p
&& *p
; p
++)
655 if (strncmp (*p
, "MALLOC_CHECK_=", 14) == 0)
664 malloc_set_state (malloc_state_ptr
);
665 #ifndef XMALLOC_OVERRUN_CHECK
666 free (malloc_state_ptr
);
671 if (my_heap_start
== 0)
672 my_heap_start
= sbrk (0);
673 malloc_using_checking
= getenv ("MALLOC_CHECK_") != NULL
;
677 void (*__malloc_initialize_hook
) (void) EXTERNALLY_VISIBLE
= malloc_initialize_hook
;
679 #endif /* DOUG_LEA_MALLOC */
681 /* Close standard output and standard error, reporting any write
682 errors as best we can. This is intended for use with atexit. */
684 close_output_streams (void)
686 if (close_stream (stdout
) != 0)
688 emacs_perror ("Write error to standard output");
689 _exit (EXIT_FAILURE
);
692 if (close_stream (stderr
) != 0)
693 _exit (EXIT_FAILURE
);
698 main (int argc
, char **argv
)
703 char stack_bottom_variable
;
704 bool do_initial_setlocale
;
707 #ifdef HAVE_SETRLIMIT
713 #ifdef DAEMON_MUST_EXEC
718 /* If we use --chdir, this records the original directory. */
719 char *original_pwd
= 0;
726 might_dump
= !initialized
;
732 if (my_heap_start
== 0)
733 my_heap_start
= sbrk (0);
735 heap_bss_diff
= (char *)my_heap_start
- max (my_endbss
, my_endbss_static
);
739 #if defined WINDOWSNT || defined HAVE_NTGUI
740 /* Set global variables used to detect Windows version. Do this as
741 early as possible. (unexw32.c calls this function as well, but
742 the additional call here is harmless.) */
743 cache_system_info ();
745 /* On Windows 9X, we have to load UNICOWS.DLL as early as possible,
746 to have non-stub implementations of APIs we need to convert file
747 names between UTF-8 and the system's ANSI codepage. */
748 maybe_load_unicows_dll ();
752 #ifdef RUN_TIME_REMAP
754 run_time_remap (argv
[0]);
757 /* If using unexmacosx.c (set by s/darwin.h), we must do this. */
760 unexec_init_emacs_zone ();
763 atexit (close_output_streams
);
765 sort_args (argc
, argv
);
767 while (argv
[argc
]) argc
++;
769 if (argmatch (argv
, argc
, "-version", "--version", 3, NULL
, &skip_args
))
771 const char *version
, *copyright
;
774 Lisp_Object tem
, tem2
;
775 tem
= Fsymbol_value (intern_c_string ("emacs-version"));
776 tem2
= Fsymbol_value (intern_c_string ("emacs-copyright"));
779 fprintf (stderr
, "Invalid value of 'emacs-version'\n");
784 fprintf (stderr
, "Invalid value of 'emacs-copyright'\n");
789 version
= SSDATA (tem
);
790 copyright
= SSDATA (tem2
);
795 version
= emacs_version
;
796 copyright
= emacs_copyright
;
798 printf ("%s %s\n", PACKAGE_NAME
, version
);
799 printf ("%s\n", copyright
);
800 printf ("%s comes with ABSOLUTELY NO WARRANTY.\n", PACKAGE_NAME
);
801 printf ("You may redistribute copies of %s\n", PACKAGE_NAME
);
802 printf ("under the terms of the GNU General Public License.\n");
803 printf ("For more information about these matters, ");
804 printf ("see the file named COPYING.\n");
808 if (argmatch (argv
, argc
, "-chdir", "--chdir", 4, &ch_to_dir
, &skip_args
))
811 /* argv[] array is kept in its original ANSI codepage encoding,
812 we need to convert to UTF-8, for chdir to work. */
813 char newdir
[MAX_UTF8_PATH
];
815 filename_from_ansi (ch_to_dir
, newdir
);
818 original_pwd
= get_current_dir_name ();
819 if (chdir (ch_to_dir
) != 0)
821 fprintf (stderr
, "%s: Can't chdir to %s: %s\n",
822 argv
[0], ch_to_dir
, strerror (errno
));
827 dumping
= !initialized
&& (strcmp (argv
[argc
- 1], "dump") == 0
828 || strcmp (argv
[argc
- 1], "bootstrap") == 0);
830 #ifdef HAVE_PERSONALITY_LINUX32
831 if (dumping
&& ! getenv ("EMACS_HEAP_EXEC"))
833 /* Set this so we only do this once. */
834 xputenv ("EMACS_HEAP_EXEC=true");
836 /* A flag to turn off address randomization which is introduced
837 in linux kernel shipped with fedora core 4 */
838 #define ADD_NO_RANDOMIZE 0x0040000
839 personality (PER_LINUX32
| ADD_NO_RANDOMIZE
);
840 #undef ADD_NO_RANDOMIZE
842 execvp (argv
[0], argv
);
844 /* If the exec fails, try to dump anyway. */
845 emacs_perror (argv
[0]);
847 #endif /* HAVE_PERSONALITY_LINUX32 */
849 #if defined (HAVE_SETRLIMIT) && defined (RLIMIT_STACK) && !defined (CYGWIN)
850 /* Extend the stack space available. Don't do that if dumping,
851 since some systems (e.g. DJGPP) might define a smaller stack
852 limit at that time. And it's not needed on Cygwin, since emacs
853 is built with an 8MB stack. Moreover, the setrlimit call can
854 cause problems on Cygwin
855 (https://www.cygwin.com/ml/cygwin/2015-07/msg00096.html). */
858 && (!noninteractive
|| initialized
)
860 && !getrlimit (RLIMIT_STACK
, &rlim
))
863 /* Approximate the amount regex.c needs per unit of re_max_failures. */
864 int ratio
= 20 * sizeof (char *);
865 /* Then add 33% to cover the size of the smaller stacks that regex.c
866 successively allocates and discards, on its way to the maximum. */
868 /* Add in some extra to cover
869 what we're likely to use for other reasons. */
870 newlim
= re_max_failures
* ratio
+ 200000;
872 /* NetBSD (at least NetBSD 1.2G and former) has a bug in its
873 stack allocation routine for new process that the allocation
874 fails if stack limit is not on page boundary. So, round up the
875 new limit to page boundary. */
876 newlim
= (newlim
+ getpagesize () - 1) / getpagesize () * getpagesize ();
878 if (newlim
> rlim
.rlim_max
)
880 newlim
= rlim
.rlim_max
;
881 /* Don't let regex.c overflow the stack we have. */
882 re_max_failures
= (newlim
- 200000) / ratio
;
884 if (rlim
.rlim_cur
< newlim
)
885 rlim
.rlim_cur
= newlim
;
887 setrlimit (RLIMIT_STACK
, &rlim
);
889 #endif /* HAVE_SETRLIMIT and RLIMIT_STACK and not CYGWIN */
891 /* Record (approximately) where the stack begins. */
892 stack_bottom
= &stack_bottom_variable
;
896 emacs_backtrace (-1);
898 #if !defined SYSTEM_MALLOC && !defined HYBRID_MALLOC
899 /* Arrange to get warning messages as memory fills up. */
900 memory_warnings (0, malloc_warning
);
902 /* Call malloc at least once, to run malloc_initialize_hook.
903 Also call realloc and free for consistency. */
904 free (realloc (malloc (4), 4));
906 #endif /* not SYSTEM_MALLOC and not HYBRID_MALLOC */
909 SET_BINARY (fileno (stdin
));
911 SET_BINARY (fileno (stdout
));
914 /* Skip initial setlocale if LC_ALL is "C", as it's not needed in that case.
915 The build procedure uses this while dumping, to ensure that the
916 dumped Emacs does not have its system locale tables initialized,
917 as that might cause screwups when the dumped Emacs starts up. */
919 char *lc_all
= getenv ("LC_ALL");
920 do_initial_setlocale
= ! lc_all
|| strcmp (lc_all
, "C");
923 /* Set locale now, so that initial error messages are localized properly.
924 fixup_locale must wait until later, since it builds strings. */
925 if (do_initial_setlocale
)
926 setlocale (LC_ALL
, "");
928 inhibit_window_system
= 0;
930 /* Handle the -t switch, which specifies filename to use as terminal. */
934 if (argmatch (argv
, argc
, "-t", "--terminal", 4, &term
, &skip_args
))
939 result
= emacs_open (term
, O_RDWR
, 0);
940 if (result
< 0 || fcntl (0, F_DUPFD_CLOEXEC
, 1) < 0)
942 char *errstring
= strerror (errno
);
943 fprintf (stderr
, "%s: %s: %s\n", argv
[0], term
, errstring
);
948 fprintf (stderr
, "%s: %s: not a tty\n", argv
[0], term
);
951 fprintf (stderr
, "Using %s\n", term
);
952 #ifdef HAVE_WINDOW_SYSTEM
953 inhibit_window_system
= 1; /* -t => -nw */
960 /* Command line option --no-windows is deprecated and thus not mentioned
961 in the manual and usage information. */
962 if (argmatch (argv
, argc
, "-nw", "--no-window-system", 6, NULL
, &skip_args
)
963 || argmatch (argv
, argc
, "-nw", "--no-windows", 6, NULL
, &skip_args
))
964 inhibit_window_system
= 1;
966 /* Handle the -batch switch, which means don't do interactive display. */
968 if (argmatch (argv
, argc
, "-batch", "--batch", 5, NULL
, &skip_args
))
971 Vundo_outer_limit
= Qnil
;
973 if (argmatch (argv
, argc
, "-script", "--script", 3, &junk
, &skip_args
))
975 noninteractive
= 1; /* Set batch mode. */
976 /* Convert --script to -scriptload, un-skip it, and sort again
977 so that it will be handled in proper sequence. */
978 /* FIXME broken for --script=FILE - is that supposed to work? */
979 argv
[skip_args
- 1] = (char *) "-scriptload";
981 sort_args (argc
, argv
);
984 /* Handle the --help option, which gives a usage message. */
985 if (argmatch (argv
, argc
, "-help", "--help", 3, NULL
, &skip_args
))
988 printf ("Usage: %s [OPTION-OR-FILENAME]...\n", argv
[0]);
989 for (i
= 0; i
< ARRAYELTS (usage_message
); i
++)
990 fputs (usage_message
[i
], stdout
);
995 /* Make sure IS_DAEMON starts up as false. */
998 w32_daemon_event
= NULL
;
1001 if (argmatch (argv
, argc
, "-daemon", "--daemon", 5, NULL
, &skip_args
)
1002 || argmatch (argv
, argc
, "-daemon", "--daemon", 5, &dname_arg
, &skip_args
))
1007 /* Start as a daemon: fork a new child process which will run the
1008 rest of the initialization code, then exit.
1010 Detaching a daemon requires the following steps:
1014 - close the tty file-descriptors
1016 We only want to do the last 2 steps once the daemon is ready to
1017 serve requests, i.e. after loading .emacs (initialization).
1018 OTOH initialization may start subprocesses (e.g. ispell) and these
1019 should be run from the proper process (the one that will end up
1020 running as daemon) and with the proper "session id" in order for
1021 them to keep working after detaching, so fork and setsid need to be
1022 performed before initialization.
1024 We want to avoid exiting before the server socket is ready, so
1025 use a pipe for synchronization. The parent waits for the child
1026 to close its end of the pipe (using `daemon-initialized')
1028 if (emacs_pipe (daemon_pipe
) != 0)
1030 fprintf (stderr
, "Cannot pipe!\n");
1034 #ifndef DAEMON_MUST_EXEC
1036 fprintf (stderr
, "\nWarning: due to a long standing Gtk+ bug\nhttp://bugzilla.gnome.org/show_bug.cgi?id=85715\n\
1037 Emacs might crash when run in daemon mode and the X11 connection is unexpectedly lost.\n\
1038 Using an Emacs configured with --with-x-toolkit=lucid does not have this problem.\n");
1039 #endif /* USE_GTK */
1041 #else /* DAEMON_MUST_EXEC */
1042 if (!dname_arg
|| !strchr (dname_arg
, '\n'))
1043 f
= fork (); /* in orig */
1045 f
= 0; /* in exec'd */
1046 #endif /* !DAEMON_MUST_EXEC */
1052 /* Close unused writing end of the pipe. */
1053 emacs_close (daemon_pipe
[1]);
1055 /* Just wait for the child to close its end of the pipe. */
1058 retval
= read (daemon_pipe
[0], &buf
, 1);
1060 while (retval
== -1 && errno
== EINTR
);
1064 fprintf (stderr
, "Error reading status from child\n");
1067 else if (retval
== 0)
1069 fprintf (stderr
, "Error: server did not start correctly\n");
1073 emacs_close (daemon_pipe
[0]);
1078 emacs_perror ("fork");
1079 exit (EXIT_CANCELED
);
1082 #ifdef DAEMON_MUST_EXEC
1084 /* In orig process, forked as child, OR in exec'd. */
1085 if (!dname_arg
|| !strchr (dname_arg
, '\n'))
1086 { /* In orig, child: now exec w/special daemon name. */
1089 snprintf (fdStr
, sizeof fdStr
,
1090 "--daemon=\n%d,%d\n%s", daemon_pipe
[0],
1091 daemon_pipe
[1], dname_arg
? dname_arg
: "");
1093 if (! (0 <= fdStrlen
&& fdStrlen
< sizeof fdStr
))
1095 fprintf (stderr
, "daemon: child name too long\n");
1096 exit (EXIT_CANNOT_INVOKE
);
1099 argv
[skip_args
] = fdStr
;
1101 fcntl (daemon_pipe
[0], F_SETFD
, 0);
1102 fcntl (daemon_pipe
[1], F_SETFD
, 0);
1103 execvp (argv
[0], argv
);
1104 emacs_perror (argv
[0]);
1105 exit (errno
== ENOENT
? EXIT_ENOENT
: EXIT_CANNOT_INVOKE
);
1108 /* In exec'd: parse special dname into pipe and name info. */
1109 if (!dname_arg
|| !strchr (dname_arg
, '\n')
1110 || strlen (dname_arg
) < 1 || strlen (dname_arg
) > 70)
1112 fprintf (stderr
, "emacs daemon: daemon name absent or too long\n");
1113 exit (EXIT_CANNOT_INVOKE
);
1115 dname_arg2
[0] = '\0';
1116 sscanf (dname_arg
, "\n%d,%d\n%s", &(daemon_pipe
[0]), &(daemon_pipe
[1]),
1118 dname_arg
= *dname_arg2
? dname_arg2
: NULL
;
1119 fcntl (daemon_pipe
[1], F_SETFD
, FD_CLOEXEC
);
1121 #endif /* DAEMON_MUST_EXEC */
1123 /* Close unused reading end of the pipe. */
1124 emacs_close (daemon_pipe
[0]);
1127 #elif defined(WINDOWSNT)
1128 /* Indicate that we want daemon mode. */
1129 w32_daemon_event
= CreateEvent (NULL
, TRUE
, FALSE
, W32_DAEMON_EVENT
);
1130 if (w32_daemon_event
== NULL
)
1132 fprintf (stderr
, "Couldn't create MS-Windows event for daemon: %s\n",
1137 fprintf (stderr
, "This platform does not support the -daemon flag.\n");
1141 daemon_name
= xstrdup (dname_arg
);
1144 #if defined HAVE_PTHREAD && !defined SYSTEM_MALLOC \
1145 && !defined DOUG_LEA_MALLOC && !defined HYBRID_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. See
1149 Bug#14569. The part of this bug involving Cygwin is no longer
1150 relevant, now that Cygwin defines HYBRID_MALLOC. */
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) && ! ch_to_dir
)
1244 chdir (getenv ("HOME"));
1245 if (skip_args
< argc
)
1247 if (!strncmp (argv
[skip_args
], "-psn", 4))
1250 if (! ch_to_dir
) chdir (getenv ("HOME"));
1252 else if (skip_args
+1 < argc
&& !strncmp (argv
[skip_args
+1], "-psn", 4))
1255 if (! ch_to_dir
) 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 */
1508 #ifdef HAVE_GFILENOTIFY
1509 syms_of_gfilenotify ();
1510 #endif /* HAVE_GFILENOTIFY */
1514 #endif /* HAVE_INOTIFY */
1517 syms_of_dbusbind ();
1518 #endif /* HAVE_DBUS */
1522 #ifdef HAVE_W32NOTIFY
1523 syms_of_w32notify ();
1524 #endif /* HAVE_W32NOTIFY */
1525 #endif /* WINDOWSNT */
1527 syms_of_profiler ();
1529 keys_of_casefiddle ();
1532 keys_of_keyboard ();
1538 /* Initialization that must be done even if the global variable
1539 initialized is non zero. */
1541 globals_of_w32font ();
1542 globals_of_w32fns ();
1543 globals_of_w32menu ();
1544 #endif /* HAVE_NTGUI */
1546 #if defined WINDOWSNT || defined HAVE_NTGUI
1547 globals_of_w32select ();
1553 /* This calls putenv and so must precede init_process_emacs. Also,
1554 it sets Voperating_system_release, which init_process_emacs uses. */
1557 /* These two call putenv. */
1565 /* This can create a thread that may call getenv, so it must follow
1566 all calls to putenv and setenv. Also, this sets up
1567 add_keyboard_wait_descriptor, which init_display uses. */
1568 init_process_emacs ();
1570 init_keyboard (); /* This too must precede init_sys_modes. */
1571 if (!noninteractive
)
1572 init_display (); /* Determine terminal type. Calls init_sys_modes. */
1575 init_crit (); /* w32notify.c needs this in batch mode. */
1576 #endif /* HAVE_W32NOTIFY */
1578 #ifdef HAVE_WINDOW_SYSTEM
1580 #endif /* HAVE_WINDOW_SYSTEM */
1588 /* Handle -l loadup, args passed by Makefile. */
1589 if (argmatch (argv
, argc
, "-l", "--load", 3, &file
, &skip_args
))
1592 char file_utf8
[MAX_UTF8_PATH
];
1594 if (filename_from_ansi (file
, file_utf8
) == 0)
1597 Vtop_level
= list2 (Qload
, build_unibyte_string (file
));
1599 /* Unless next switch is -nl, load "loadup.el" first thing. */
1601 Vtop_level
= list2 (Qload
, build_string ("loadup.el"));
1604 /* Set up for profiling. This is known to work on FreeBSD,
1605 GNU/Linux and MinGW. It might work on some other systems too.
1606 Give it a try and tell us if it works on your system. To compile
1607 for profiling, use the configure option --enable-profiling. */
1608 #if defined (__FreeBSD__) || defined (GNU_LINUX) || defined (__MINGW32__)
1613 extern unsigned char etext
asm ("etext");
1619 monstartup ((uintptr_t) __executable_start
, (uintptr_t) &etext
);
1628 /* Enter editor command loop. This never returns. */
1634 /* Sort the args so we can find the most important ones
1635 at the beginning of argv. */
1637 /* First, here's a table of all the standard options. */
1639 struct standard_args
1642 const char *longname
;
1647 static const struct standard_args standard_args
[] =
1649 { "-version", "--version", 150, 0 },
1650 { "-chdir", "--chdir", 130, 1 },
1651 { "-t", "--terminal", 120, 1 },
1652 { "-nw", "--no-window-system", 110, 0 },
1653 { "-nw", "--no-windows", 110, 0 },
1654 { "-batch", "--batch", 100, 0 },
1655 { "-script", "--script", 100, 1 },
1656 { "-daemon", "--daemon", 99, 0 },
1657 { "-help", "--help", 90, 0 },
1658 { "-nl", "--no-loadup", 70, 0 },
1659 { "-nsl", "--no-site-lisp", 65, 0 },
1660 /* -d must come last before the options handled in startup.el. */
1661 { "-d", "--display", 60, 1 },
1662 { "-display", 0, 60, 1 },
1663 /* Now for the options handled in `command-line' (startup.el). */
1664 /* (Note that to imply -nsl, -Q is partially handled here.) */
1665 { "-Q", "--quick", 55, 0 },
1666 { "-quick", 0, 55, 0 },
1667 { "-q", "--no-init-file", 50, 0 },
1668 { "-no-init-file", 0, 50, 0 },
1669 { "-no-x-resources", "--no-x-resources", 40, 0 },
1670 { "-no-site-file", "--no-site-file", 40, 0 },
1671 { "-u", "--user", 30, 1 },
1672 { "-user", 0, 30, 1 },
1673 { "-debug-init", "--debug-init", 20, 0 },
1674 { "-iconic", "--iconic", 15, 0 },
1675 { "-D", "--basic-display", 12, 0},
1676 { "-basic-display", 0, 12, 0},
1677 { "-nbc", "--no-blinking-cursor", 12, 0 },
1678 /* Now for the options handled in `command-line-1' (startup.el). */
1679 { "-nbi", "--no-bitmap-icon", 10, 0 },
1680 { "-bg", "--background-color", 10, 1 },
1681 { "-background", 0, 10, 1 },
1682 { "-fg", "--foreground-color", 10, 1 },
1683 { "-foreground", 0, 10, 1 },
1684 { "-bd", "--border-color", 10, 1 },
1685 { "-bw", "--border-width", 10, 1 },
1686 { "-ib", "--internal-border", 10, 1 },
1687 { "-ms", "--mouse-color", 10, 1 },
1688 { "-cr", "--cursor-color", 10, 1 },
1689 { "-fn", "--font", 10, 1 },
1690 { "-font", 0, 10, 1 },
1691 { "-fs", "--fullscreen", 10, 0 },
1692 { "-fw", "--fullwidth", 10, 0 },
1693 { "-fh", "--fullheight", 10, 0 },
1694 { "-mm", "--maximized", 10, 0 },
1695 { "-g", "--geometry", 10, 1 },
1696 { "-geometry", 0, 10, 1 },
1697 { "-T", "--title", 10, 1 },
1698 { "-title", 0, 10, 1 },
1699 { "-name", "--name", 10, 1 },
1700 { "-xrm", "--xrm", 10, 1 },
1701 { "-parent-id", "--parent-id", 10, 1 },
1702 { "-r", "--reverse-video", 5, 0 },
1704 { "-reverse", 0, 5, 0 },
1705 { "-hb", "--horizontal-scroll-bars", 5, 0 },
1706 { "-vb", "--vertical-scroll-bars", 5, 0 },
1707 { "-color", "--color", 5, 0},
1708 { "-no-splash", "--no-splash", 3, 0 },
1709 { "-no-desktop", "--no-desktop", 3, 0 },
1711 { "-NSAutoLaunch", 0, 5, 1 },
1712 { "-NXAutoLaunch", 0, 5, 1 },
1713 { "-_NSMachLaunch", 0, 85, 1 },
1714 { "-MachLaunch", 0, 85, 1 },
1715 { "-macosx", 0, 85, 0 },
1716 { "-NSHost", 0, 85, 1 },
1718 /* These have the same priority as ordinary file name args,
1719 so they are not reordered with respect to those. */
1720 { "-L", "--directory", 0, 1 },
1721 { "-directory", 0, 0, 1 },
1722 { "-l", "--load", 0, 1 },
1723 { "-load", 0, 0, 1 },
1724 /* This has no longname, because using --scriptload confuses sort_args,
1725 because then the --script long option seems to match twice; ie
1726 you can't have a long option which is a prefix of another long
1727 option. In any case, this is entirely an internal option. */
1728 { "-scriptload", NULL
, 0, 1 },
1729 { "-f", "--funcall", 0, 1 },
1730 { "-funcall", 0, 0, 1 },
1731 { "-eval", "--eval", 0, 1 },
1732 { "-execute", "--execute", 0, 1 },
1733 { "-find-file", "--find-file", 0, 1 },
1734 { "-visit", "--visit", 0, 1 },
1735 { "-file", "--file", 0, 1 },
1736 { "-insert", "--insert", 0, 1 },
1738 { "-NXOpen", 0, 0, 1 },
1739 { "-NXOpenTemp", 0, 0, 1 },
1740 { "-NSOpen", 0, 0, 1 },
1741 { "-NSOpenTemp", 0, 0, 1 },
1742 { "-GSFilePath", 0, 0, 1 },
1744 /* This should be processed after ordinary file name args and the like. */
1745 { "-kill", "--kill", -10, 0 },
1748 /* Reorder the elements of ARGV (assumed to have ARGC elements)
1749 so that the highest priority ones come first.
1750 Do not change the order of elements of equal priority.
1751 If an option takes an argument, keep it and its argument together.
1753 If an option that takes no argument appears more
1754 than once, eliminate all but one copy of it. */
1757 sort_args (int argc
, char **argv
)
1759 char **new = xmalloc (argc
* sizeof *new);
1760 /* For each element of argv,
1761 the corresponding element of options is:
1762 0 for an option that takes no arguments,
1763 1 for an option that takes one argument, etc.
1764 -1 for an ordinary non-option argument. */
1765 int *options
= xnmalloc (argc
, sizeof *options
);
1766 int *priority
= xnmalloc (argc
, sizeof *priority
);
1768 int incoming_used
= 1;
1772 /* Categorize all the options,
1773 and figure out which argv elts are option arguments. */
1774 for (from
= 1; from
< argc
; from
++)
1778 if (argv
[from
][0] == '-')
1782 /* If we have found "--", don't consider
1783 any more arguments as options. */
1784 if (argv
[from
][1] == '-' && argv
[from
][2] == 0)
1786 /* Leave the "--", and everything following it, at the end. */
1787 for (; from
< argc
; from
++)
1789 priority
[from
] = -100;
1795 /* Look for a match with a known old-fashioned option. */
1796 for (i
= 0; i
< ARRAYELTS (standard_args
); i
++)
1797 if (!strcmp (argv
[from
], standard_args
[i
].name
))
1799 options
[from
] = standard_args
[i
].nargs
;
1800 priority
[from
] = standard_args
[i
].priority
;
1801 if (from
+ standard_args
[i
].nargs
>= argc
)
1802 fatal ("Option '%s' requires an argument\n", argv
[from
]);
1803 from
+= standard_args
[i
].nargs
;
1807 /* Look for a match with a known long option.
1808 MATCH is -1 if no match so far, -2 if two or more matches so far,
1809 >= 0 (the table index of the match) if just one match so far. */
1810 if (argv
[from
][1] == '-')
1812 char const *equals
= strchr (argv
[from
], '=');
1814 equals
? equals
- argv
[from
] : strlen (argv
[from
]);
1818 for (i
= 0; i
< ARRAYELTS (standard_args
); i
++)
1819 if (standard_args
[i
].longname
1820 && !strncmp (argv
[from
], standard_args
[i
].longname
,
1829 /* If we found exactly one match, use that. */
1832 options
[from
] = standard_args
[match
].nargs
;
1833 priority
[from
] = standard_args
[match
].priority
;
1834 /* If --OPTION=VALUE syntax is used,
1835 this option uses just one argv element. */
1838 if (from
+ options
[from
] >= argc
)
1839 fatal ("Option '%s' requires an argument\n", argv
[from
]);
1840 from
+= options
[from
];
1842 /* FIXME When match < 0, shouldn't there be some error,
1843 or at least indication to the user that there was a
1850 /* Copy the arguments, in order of decreasing priority, to NEW. */
1852 while (incoming_used
< argc
)
1855 int best_priority
= -9999;
1857 /* Find the highest priority remaining option.
1858 If several have equal priority, take the first of them. */
1859 for (from
= 1; from
< argc
; from
++)
1861 if (argv
[from
] != 0 && priority
[from
] > best_priority
)
1863 best_priority
= priority
[from
];
1866 /* Skip option arguments--they are tied to the options. */
1867 if (options
[from
] > 0)
1868 from
+= options
[from
];
1874 /* Copy the highest priority remaining option, with its args, to NEW.
1875 Unless it is a duplicate of the previous one. */
1876 if (! (options
[best
] == 0
1877 && ! strcmp (new[to
- 1], argv
[best
])))
1879 new[to
++] = argv
[best
];
1880 for (i
= 0; i
< options
[best
]; i
++)
1881 new[to
++] = argv
[best
+ i
+ 1];
1884 incoming_used
+= 1 + (options
[best
] > 0 ? options
[best
] : 0);
1886 /* Clear out this option in ARGV. */
1888 for (i
= 0; i
< options
[best
]; i
++)
1889 argv
[best
+ i
+ 1] = 0;
1892 /* If duplicate options were deleted, fill up extra space with null ptrs. */
1896 memcpy (argv
, new, sizeof (char *) * argc
);
1903 DEFUN ("kill-emacs", Fkill_emacs
, Skill_emacs
, 0, 1, "P",
1904 doc
: /* Exit the Emacs job and kill it.
1905 If ARG is an integer, return ARG as the exit program code.
1906 If ARG is a string, stuff it as keyboard input.
1908 This function is called upon receipt of the signals SIGTERM
1909 or SIGHUP, and upon SIGINT in batch mode.
1911 The value of `kill-emacs-hook', if not void,
1912 is a list of functions (of no args),
1913 all of which are called before Emacs is actually killed. */
1914 attributes
: noreturn
)
1917 struct gcpro gcpro1
;
1922 /* Fsignal calls emacs_abort () if it sees that waiting_for_input is
1924 waiting_for_input
= 0;
1925 run_hook (Qkill_emacs_hook
);
1928 #ifdef HAVE_X_WINDOWS
1929 /* Transfer any clipboards we own to the clipboard manager. */
1930 x_clipboard_manager_save_all ();
1933 shut_down_emacs (0, (STRINGP (arg
) && !feof (stdin
)) ? arg
: Qnil
);
1936 ns_release_autorelease_pool (ns_pool
);
1939 /* If we have an auto-save list file,
1940 kill it because we are exiting Emacs deliberately (not crashing).
1941 Do it after shut_down_emacs, which does an auto-save. */
1942 if (STRINGP (Vauto_save_list_file_name
))
1944 Lisp_Object listfile
;
1945 listfile
= Fexpand_file_name (Vauto_save_list_file_name
, Qnil
);
1946 unlink (SSDATA (listfile
));
1950 exit_code
= (XINT (arg
) < 0
1951 ? XINT (arg
) | INT_MIN
1952 : XINT (arg
) & INT_MAX
);
1954 exit_code
= EXIT_SUCCESS
;
1959 /* Perform an orderly shutdown of Emacs. Autosave any modified
1960 buffers, kill any child processes, clean up the terminal modes (if
1961 we're in the foreground), and other stuff like that. Don't perform
1962 any redisplay; this may be called when Emacs is shutting down in
1963 the background, or after its X connection has died.
1965 If SIG is a signal number, print a message for it.
1967 This is called by fatal signal handlers, X protocol error handlers,
1971 shut_down_emacs (int sig
, Lisp_Object stuff
)
1973 /* Prevent running of hooks from now on. */
1976 /* Don't update display from now on. */
1977 Vinhibit_redisplay
= Qt
;
1979 /* If we are controlling the terminal, reset terminal modes. */
1982 pid_t pgrp
= getpgrp ();
1983 pid_t tpgrp
= tcgetpgrp (0);
1984 if ((tpgrp
!= -1) && tpgrp
== pgrp
)
1986 reset_all_sys_modes ();
1987 if (sig
&& sig
!= SIGTERM
)
1989 static char const format
[] = "Fatal error %d: ";
1990 char buf
[sizeof format
- 2 + INT_STRLEN_BOUND (int)];
1991 int buflen
= sprintf (buf
, format
, sig
);
1992 char const *sig_desc
= safe_strsignal (sig
);
1993 emacs_write (STDERR_FILENO
, buf
, buflen
);
1994 emacs_write (STDERR_FILENO
, sig_desc
, strlen (sig_desc
));
2000 reset_all_sys_modes ();
2003 stuff_buffered_input (stuff
);
2005 inhibit_sentinels
= 1;
2006 kill_buffer_processes (Qnil
);
2007 Fdo_auto_save (Qt
, Qnil
);
2009 unlock_all_files ();
2011 /* There is a tendency for a SIGIO signal to arrive within exit,
2012 and cause a SIGHUP because the input descriptor is already closed. */
2016 /* Do this only if terminating normally, we want glyph matrices
2017 etc. in a core dump. */
2018 if (sig
== 0 || sig
== SIGTERM
)
2020 check_glyph_memory ();
2021 check_message_stack ();
2029 ns_term_shutdown (sig
);
2033 xml_cleanup_parser ();
2047 DEFUN ("dump-emacs", Fdump_emacs
, Sdump_emacs
, 2, 2, 0,
2048 doc
: /* Dump current state of Emacs into executable file FILENAME.
2049 Take symbols from SYMFILE (presumably the file you executed to run Emacs).
2050 This is used in the file `loadup.el' when building Emacs.
2052 You must run Emacs in batch mode in order to dump it. */)
2053 (Lisp_Object filename
, Lisp_Object symfile
)
2057 ptrdiff_t count
= SPECPDL_INDEX ();
2061 if (! noninteractive
)
2062 error ("Dumping Emacs works only in batch mode");
2065 error ("Emacs can be dumped only once");
2069 /* Warn if the gap between BSS end and heap start is larger than this. */
2070 # define MAX_HEAP_BSS_DIFF (1024*1024)
2072 if (heap_bss_diff
> MAX_HEAP_BSS_DIFF
)
2074 fprintf (stderr
, "**************************************************\n");
2075 fprintf (stderr
, "Warning: Your system has a gap between BSS and the\n");
2076 fprintf (stderr
, "heap (%"pMu
" bytes). This usually means that exec-shield\n",
2078 fprintf (stderr
, "or something similar is in effect. The dump may\n");
2079 fprintf (stderr
, "fail because of this. See the section about\n");
2080 fprintf (stderr
, "exec-shield in etc/PROBLEMS for more information.\n");
2081 fprintf (stderr
, "**************************************************\n");
2083 #endif /* GNU_LINUX */
2085 /* Bind `command-line-processed' to nil before dumping,
2086 so that the dumped Emacs will process its command line
2087 and set up to work with X windows if appropriate. */
2088 symbol
= intern ("command-line-processed");
2089 specbind (symbol
, Qnil
);
2091 CHECK_STRING (filename
);
2092 filename
= Fexpand_file_name (filename
, Qnil
);
2093 filename
= ENCODE_FILE (filename
);
2094 if (!NILP (symfile
))
2096 CHECK_STRING (symfile
);
2097 if (SCHARS (symfile
))
2099 symfile
= Fexpand_file_name (symfile
, Qnil
);
2100 symfile
= ENCODE_FILE (symfile
);
2105 Vpurify_flag
= Qnil
;
2108 /* Tell malloc where start of impure now is. */
2109 /* Also arrange for warnings when nearly out of space. */
2110 #if !defined SYSTEM_MALLOC && !defined HYBRID_MALLOC
2112 /* On Windows, this was done before dumping, and that once suffices.
2113 Meanwhile, my_edata is not valid on Windows. */
2114 memory_warnings (my_edata
, malloc_warning
);
2115 #endif /* not WINDOWSNT */
2116 #endif /* not SYSTEM_MALLOC and not HYBRID_MALLOC */
2117 #ifdef DOUG_LEA_MALLOC
2118 malloc_state_ptr
= malloc_get_state ();
2121 unexec (SSDATA (filename
), !NILP (symfile
) ? SSDATA (symfile
) : 0);
2123 #ifdef DOUG_LEA_MALLOC
2124 free (malloc_state_ptr
);
2128 Vlibrary_cache
= Qnil
;
2130 #ifdef HAVE_WINDOW_SYSTEM
2131 reset_image_types ();
2136 return unbind_to (count
, Qnil
);
2139 #endif /* not CANNOT_DUMP */
2142 /* Recover from setlocale (LC_ALL, ""). */
2146 /* The Emacs Lisp reader needs LC_NUMERIC to be "C",
2147 so that numbers are read and printed properly for Emacs Lisp. */
2148 setlocale (LC_NUMERIC
, "C");
2151 /* Set system locale CATEGORY, with previous locale *PLOCALE, to
2154 synchronize_locale (int category
, Lisp_Object
*plocale
, Lisp_Object desired_locale
)
2156 if (! EQ (*plocale
, desired_locale
))
2159 /* Changing categories like LC_TIME usually requires to specify
2160 an encoding suitable for the new locale, but MS-Windows's
2161 'setlocale' will only switch the encoding when LC_ALL is
2162 specified. So we ignore CATEGORY and use LC_ALL instead. */
2165 *plocale
= desired_locale
;
2166 setlocale (category
, (STRINGP (desired_locale
)
2167 ? SSDATA (desired_locale
)
2172 /* Set system time locale to match Vsystem_time_locale, if possible. */
2174 synchronize_system_time_locale (void)
2176 synchronize_locale (LC_TIME
, &Vprevious_system_time_locale
,
2177 Vsystem_time_locale
);
2180 /* Set system messages locale to match Vsystem_messages_locale, if
2183 synchronize_system_messages_locale (void)
2186 synchronize_locale (LC_MESSAGES
, &Vprevious_system_messages_locale
,
2187 Vsystem_messages_locale
);
2190 #endif /* HAVE_SETLOCALE */
2194 decode_env_path (const char *evarname
, const char *defalt
, bool empty
)
2196 const char *path
, *p
;
2197 Lisp_Object lpath
, element
, tem
;
2198 /* Default is to use "." for empty path elements.
2199 But if argument EMPTY is true, use nil instead. */
2200 Lisp_Object empty_element
= empty
? Qnil
: build_string (".");
2203 static const char *emacs_dir_env
= "%emacs_dir%/";
2204 const size_t emacs_dir_len
= strlen (emacs_dir_env
);
2205 const char *edir
= egetenv ("emacs_dir");
2206 char emacs_dir
[MAX_UTF8_PATH
];
2208 /* egetenv looks in process-environment, which holds the variables
2209 in their original system-locale encoding. We need emacs_dir to
2212 filename_from_ansi (edir
, emacs_dir
);
2215 /* It's okay to use getenv here, because this function is only used
2216 to initialize variables when Emacs starts up, and isn't called
2219 path
= getenv (evarname
);
2230 /* Ensure values from the environment use the proper directory separator. */
2236 char *path_utf8
, *q
, *d
;
2239 /* Convert each element of PATH to UTF-8. */
2240 p
= path_copy
= alloca (strlen (path
) + 1);
2241 strcpy (path_copy
, path
);
2242 d
= path_utf8
= alloca (4 * strlen (path
) + 1);
2245 q
= _mbschr (p
, SEPCHAR
);
2248 cnv_result
= filename_from_ansi (p
, d
);
2253 /* If conversion of this PATH elements fails, make sure
2254 destination pointer will stay put, thus effectively
2255 ignoring the offending element. */
2256 if (cnv_result
== 0)
2262 else if (cnv_result
!= 0 && d
> path_utf8
)
2263 d
[-1] = '\0'; /* remove last semi-colon and null-terminate PATH */
2265 path_copy
= path_utf8
;
2267 path_copy
= alloca (strlen (path
) + 1);
2268 strcpy (path_copy
, path
);
2270 dostounix_filename (path_copy
);
2277 p
= strchr (path
, SEPCHAR
);
2279 p
= path
+ strlen (path
);
2280 element
= ((p
- path
) ? make_unibyte_string (path
, p
- path
)
2282 if (! NILP (element
))
2285 /* Relative file names in the default path are interpreted as
2286 being relative to $emacs_dir. */
2287 if (edir
&& defaulted
2288 && strncmp (path
, emacs_dir_env
, emacs_dir_len
) == 0)
2289 element
= Fexpand_file_name (Fsubstring
2291 make_number (emacs_dir_len
),
2293 build_unibyte_string (emacs_dir
));
2296 /* Add /: to the front of the name
2297 if it would otherwise be treated as magic. */
2298 tem
= Ffind_file_name_handler (element
, Qt
);
2300 /* However, if the handler says "I'm safe",
2301 don't bother adding /:. */
2305 prop
= Fget (tem
, intern ("safe-magic"));
2312 AUTO_STRING (slash_colon
, "/:");
2313 element
= concat2 (slash_colon
, element
);
2315 } /* !NILP (element) */
2317 lpath
= Fcons (element
, lpath
);
2323 return Fnreverse (lpath
);
2326 DEFUN ("daemonp", Fdaemonp
, Sdaemonp
, 0, 0, 0,
2327 doc
: /* Return non-nil if the current emacs process is a daemon.
2328 If the daemon was given a name argument, return that name. */)
2333 return build_string (daemon_name
);
2340 DEFUN ("daemon-initialized", Fdaemon_initialized
, Sdaemon_initialized
, 0, 0, 0,
2341 doc
: /* Mark the Emacs daemon as being initialized.
2342 This finishes the daemonization process by doing the other half of detaching
2343 from the parent process and its tty file descriptors. */)
2349 error ("This function can only be called if emacs is run as a daemon");
2351 if (!DAEMON_RUNNING
)
2352 error ("The daemon has already been initialized");
2354 if (NILP (Vafter_init_time
))
2355 error ("This function can only be called after loading the init files");
2359 /* Get rid of stdin, stdout and stderr. */
2360 nfd
= emacs_open ("/dev/null", O_RDWR
, 0);
2362 err
|= dup2 (nfd
, 0) < 0;
2363 err
|= dup2 (nfd
, 1) < 0;
2364 err
|= dup2 (nfd
, 2) < 0;
2365 err
|= emacs_close (nfd
) != 0;
2367 /* Closing the pipe will notify the parent that it can exit.
2368 FIXME: In case some other process inherited the pipe, closing it here
2369 won't notify the parent because it's still open elsewhere, so we
2370 additionally send a byte, just to make sure the parent really exits.
2371 Instead, we should probably close the pipe in start-process and
2372 call-process to make sure the pipe is never inherited by
2374 err
|= write (daemon_pipe
[1], "\n", 1) < 0;
2375 err
|= emacs_close (daemon_pipe
[1]) != 0;
2376 /* Set it to an invalid value so we know we've already run this function. */
2377 daemon_pipe
[1] = -1;
2378 #else /* WINDOWSNT */
2379 /* Signal the waiting emacsclient process. */
2380 err
|= SetEvent (w32_daemon_event
) == 0;
2381 err
|= CloseHandle (w32_daemon_event
) == 0;
2382 /* Set it to an invalid value so we know we've already run this function. */
2383 w32_daemon_event
= INVALID_HANDLE_VALUE
;
2387 error ("I/O error during daemon initialization");
2392 syms_of_emacs (void)
2394 DEFSYM (Qfile_name_handler_alist
, "file-name-handler-alist");
2395 DEFSYM (Qrisky_local_variable
, "risky-local-variable");
2396 DEFSYM (Qkill_emacs
, "kill-emacs");
2397 DEFSYM (Qkill_emacs_hook
, "kill-emacs-hook");
2400 defsubr (&Sdump_emacs
);
2403 defsubr (&Skill_emacs
);
2405 defsubr (&Sinvocation_name
);
2406 defsubr (&Sinvocation_directory
);
2407 defsubr (&Sdaemonp
);
2408 defsubr (&Sdaemon_initialized
);
2410 DEFVAR_LISP ("command-line-args", Vcommand_line_args
,
2411 doc
: /* Args passed by shell to Emacs, as a list of strings.
2412 Many arguments are deleted from the list as they are processed. */);
2414 DEFVAR_LISP ("system-type", Vsystem_type
,
2415 doc
: /* The value is a symbol indicating the type of operating system you are using.
2417 `gnu' compiled for a GNU Hurd system.
2418 `gnu/linux' compiled for a GNU/Linux system.
2419 `gnu/kfreebsd' compiled for a GNU system with a FreeBSD kernel.
2420 `darwin' compiled for Darwin (GNU-Darwin, Mac OS X, ...).
2421 `ms-dos' compiled as an MS-DOS application.
2422 `windows-nt' compiled as a native W32 application.
2423 `cygwin' compiled using the Cygwin library.
2424 Anything else (in Emacs 24.1, the possibilities are: aix, berkeley-unix,
2425 hpux, irix, usg-unix-v) indicates some sort of Unix system. */);
2426 Vsystem_type
= intern_c_string (SYSTEM_TYPE
);
2427 /* See configure.ac (and config.nt) for the possible SYSTEM_TYPEs. */
2429 DEFVAR_LISP ("system-configuration", Vsystem_configuration
,
2430 doc
: /* Value is string indicating configuration Emacs was built for. */);
2431 Vsystem_configuration
= build_string (EMACS_CONFIGURATION
);
2433 DEFVAR_LISP ("system-configuration-options", Vsystem_configuration_options
,
2434 doc
: /* String containing the configuration options Emacs was built with. */);
2435 Vsystem_configuration_options
= build_string (EMACS_CONFIG_OPTIONS
);
2437 DEFVAR_LISP ("system-configuration-features", Vsystem_configuration_features
,
2438 doc
: /* String listing some of the main features this Emacs was compiled with.
2439 An element of the form \"FOO\" generally means that HAVE_FOO was
2440 defined during the build.
2442 This is mainly intended for diagnostic purposes in bug reports.
2443 Don't rely on it for testing whether a feature you want to use is available. */);
2444 Vsystem_configuration_features
= build_string (EMACS_CONFIG_FEATURES
);
2446 DEFVAR_BOOL ("noninteractive", noninteractive1
,
2447 doc
: /* Non-nil means Emacs is running without interactive terminal. */);
2449 DEFVAR_LISP ("kill-emacs-hook", Vkill_emacs_hook
,
2450 doc
: /* Hook run when `kill-emacs' is called.
2451 Since `kill-emacs' may be invoked when the terminal is disconnected (or
2452 in other similar situations), functions placed on this hook should not
2453 expect to be able to interact with the user. To ask for confirmation,
2454 see `kill-emacs-query-functions' instead.
2456 Before Emacs 24.1, the hook was not run in batch mode, i.e., if
2457 `noninteractive' was non-nil. */);
2458 Vkill_emacs_hook
= Qnil
;
2460 DEFVAR_LISP ("path-separator", Vpath_separator
,
2461 doc
: /* String containing the character that separates directories in
2462 search paths, such as PATH and other similar environment variables. */);
2465 Vpath_separator
= make_string (&c
, 1);
2468 DEFVAR_LISP ("invocation-name", Vinvocation_name
,
2469 doc
: /* The program name that was used to run Emacs.
2470 Any directory names are omitted. */);
2472 DEFVAR_LISP ("invocation-directory", Vinvocation_directory
,
2473 doc
: /* The directory in which the Emacs executable was found, to run it.
2474 The value is nil if that directory's name is not known. */);
2476 DEFVAR_LISP ("installation-directory", Vinstallation_directory
,
2477 doc
: /* A directory within which to look for the `lib-src' and `etc' directories.
2478 In an installed Emacs, this is normally nil. It is non-nil if
2479 both `lib-src' (on MS-DOS, `info') and `etc' directories are found
2480 within the variable `invocation-directory' or its parent. For example,
2481 this is the case when running an uninstalled Emacs executable from its
2482 build directory. */);
2483 Vinstallation_directory
= Qnil
;
2485 DEFVAR_LISP ("system-messages-locale", Vsystem_messages_locale
,
2486 doc
: /* System locale for messages. */);
2487 Vsystem_messages_locale
= Qnil
;
2489 DEFVAR_LISP ("previous-system-messages-locale",
2490 Vprevious_system_messages_locale
,
2491 doc
: /* Most recently used system locale for messages. */);
2492 Vprevious_system_messages_locale
= Qnil
;
2494 DEFVAR_LISP ("system-time-locale", Vsystem_time_locale
,
2495 doc
: /* System locale for time. */);
2496 Vsystem_time_locale
= Qnil
;
2498 DEFVAR_LISP ("previous-system-time-locale", Vprevious_system_time_locale
,
2499 doc
: /* Most recently used system locale for time. */);
2500 Vprevious_system_time_locale
= Qnil
;
2502 DEFVAR_LISP ("before-init-time", Vbefore_init_time
,
2503 doc
: /* Value of `current-time' before Emacs begins initialization. */);
2504 Vbefore_init_time
= Qnil
;
2506 DEFVAR_LISP ("after-init-time", Vafter_init_time
,
2507 doc
: /* Value of `current-time' after loading the init files.
2508 This is nil during initialization. */);
2509 Vafter_init_time
= Qnil
;
2511 DEFVAR_BOOL ("inhibit-x-resources", inhibit_x_resources
,
2512 doc
: /* If non-nil, X resources, Windows Registry settings, and NS defaults are not used. */);
2513 inhibit_x_resources
= 0;
2515 DEFVAR_LISP ("emacs-copyright", Vemacs_copyright
,
2516 doc
: /* Short copyright string for this version of Emacs. */);
2517 Vemacs_copyright
= build_string (emacs_copyright
);
2519 DEFVAR_LISP ("emacs-version", Vemacs_version
,
2520 doc
: /* Version numbers of this version of Emacs. */);
2521 Vemacs_version
= build_string (emacs_version
);
2523 DEFVAR_LISP ("report-emacs-bug-address", Vreport_emacs_bug_address
,
2524 doc
: /* Address of mailing list for GNU Emacs bugs. */);
2525 Vreport_emacs_bug_address
= build_string (emacs_bugreport
);
2527 DEFVAR_LISP ("dynamic-library-alist", Vdynamic_library_alist
,
2528 doc
: /* Alist of dynamic libraries vs external files implementing them.
2529 Each element is a list (LIBRARY FILE...), where the car is a symbol
2530 representing a supported external library, and the rest are strings giving
2531 alternate filenames for that library.
2533 Emacs tries to load the library from the files in the order they appear on
2534 the list; if none is loaded, the running session of Emacs won't have access
2537 Note that image types `pbm' and `xbm' do not need entries in this variable
2538 because they do not depend on external libraries and are always available.
2540 Also note that this is not a generic facility for accessing external
2541 libraries; only those already known by Emacs will be loaded. */);
2542 Vdynamic_library_alist
= Qnil
;
2543 Fput (intern_c_string ("dynamic-library-alist"), Qrisky_local_variable
, Qt
);
2546 Vlibrary_cache
= Qnil
;
2547 staticpro (&Vlibrary_cache
);