1 /* Fully extensible Emacs, running on Unix, intended for GNU.
3 Copyright (C) 1985-1987, 1993-1995, 1997-1999, 2001-2016 Free Software
6 This file is part of GNU Emacs.
8 GNU Emacs is free software: you can redistribute it and/or modify
9 it under the terms of the GNU General Public License as published by
10 the Free Software Foundation, either version 3 of the License, or
11 (at your option) any later version.
13 GNU Emacs is distributed in the hope that it will be useful,
14 but WITHOUT ANY WARRANTY; without even the implied warranty of
15 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
16 GNU General Public License for more details.
18 You should have received a copy of the GNU General Public License
19 along with GNU Emacs. If not, see <http://www.gnu.org/licenses/>. */
21 #define INLINE EXTERN_INLINE
28 #include <sys/types.h>
32 #include <close-stream.h>
39 #include <sys/socket.h>
45 #if defined WINDOWSNT || defined HAVE_NTGUI
46 #include "w32select.h"
48 #include "w32common.h"
56 #include <binary-io.h>
59 #ifdef HAVE_WINDOW_SYSTEM
61 #endif /* HAVE_WINDOW_SYSTEM */
64 #include "intervals.h"
65 #include "character.h"
73 #include "blockinput.h"
74 #include "syssignal.h"
77 #include "termhooks.h"
82 #include "composite.h"
83 #include "dispextern.h"
86 #include "sysselect.h"
92 #if (defined PROFILING \
93 && (defined __FreeBSD__ || defined GNU_LINUX || defined __MINGW32__))
94 # include <sys/gmon.h>
95 extern void moncontrol (int mode
);
106 #ifdef HAVE_SETRLIMIT
107 #include <sys/time.h>
108 #include <sys/resource.h>
111 #ifdef HAVE_PERSONALITY_LINUX32
112 #include <sys/personality.h>
115 static const char emacs_version
[] = PACKAGE_VERSION
;
116 static const char emacs_copyright
[] = COPYRIGHT
;
117 static const char emacs_bugreport
[] = PACKAGE_BUGREPORT
;
119 /* Empty lisp strings. To avoid having to build any others. */
120 Lisp_Object empty_unibyte_string
, empty_multibyte_string
;
123 /* Cache for externally loaded libraries. */
124 Lisp_Object Vlibrary_cache
;
127 /* Set after Emacs has started up the first time.
128 Prevents reinitialization of the Lisp world and keymaps
129 on subsequent starts. */
132 /* Set to true if this instance of Emacs might dump. */
136 extern void unexec_init_emacs_zone (void);
139 #ifdef DOUG_LEA_MALLOC
140 /* Preserves a pointer to the memory allocated that copies that
141 static data inside glibc's malloc. */
142 static void *malloc_state_ptr
;
143 /* From glibc, a routine that returns a copy of the malloc internal state. */
144 extern void *malloc_get_state (void);
145 /* From glibc, a routine that overwrites the malloc internal state. */
146 extern int malloc_set_state (void *);
147 /* True if the MALLOC_CHECK_ environment variable was set while
148 dumping. Used to work around a bug in glibc's malloc. */
149 static bool malloc_using_checking
;
150 #elif defined HAVE_PTHREAD && !defined SYSTEM_MALLOC && !defined HYBRID_MALLOC
151 extern void malloc_enable_thread (void);
154 /* If true, Emacs should not attempt to use a window-specific code,
155 but instead should use the virtual terminal under which it was started. */
156 bool inhibit_window_system
;
158 /* If true, a filter or a sentinel is running. Tested to save the match
159 data on the first attempt to change it inside asynchronous code. */
160 bool running_asynch_code
;
162 #if defined (HAVE_X_WINDOWS) || defined (HAVE_NS)
163 /* If true, -d was specified, meaning we're using some window system. */
167 /* An address near the bottom of the stack.
168 Tells GC how to save a copy of the stack. */
171 #if defined (DOUG_LEA_MALLOC) || defined (GNU_LINUX)
172 /* The address where the heap starts (from the first sbrk (0) call). */
173 static void *my_heap_start
;
177 /* The gap between BSS end and heap start as far as we can tell. */
178 static uprintmax_t heap_bss_diff
;
181 /* To run as a daemon under Cocoa or Windows, we must do a fork+exec,
184 On Cocoa, CoreFoundation lib fails in forked process:
185 http://developer.apple.com/ReleaseNotes/
186 CoreFoundation/CoreFoundation.html)
188 On Windows, a Cygwin fork child cannot access the USER subsystem.
190 We mark being in the exec'd process by a daemon name argument of
191 form "--daemon=\nFD0,FD1\nNAME" where FD are the pipe file descriptors,
192 NAME is the original daemon name, if any. */
193 #if defined NS_IMPL_COCOA || (defined HAVE_NTGUI && defined CYGWIN)
194 # define DAEMON_MUST_EXEC
197 /* True means running Emacs without interactive terminal. */
200 /* True means remove site-lisp directories from load-path. */
203 /* Name for the server started by the daemon.*/
204 static char *daemon_name
;
207 /* Pipe used to send exit notification to the daemon parent at
211 HANDLE w32_daemon_event
;
214 /* Save argv and argc. */
218 static void sort_args (int argc
, char **argv
);
219 static void syms_of_emacs (void);
221 /* C99 needs each string to be at most 4095 characters, and the usage
222 strings below are split to not overflow this limit. */
223 static char const *const usage_message
[] =
226 Run Emacs, the extensible, customizable, self-documenting real-time\n\
227 display editor. The recommended way to start Emacs for normal editing\n\
228 is with no options at all.\n\
230 Run M-x info RET m emacs RET m emacs invocation RET inside Emacs to\n\
231 read the main documentation for these command-line arguments.\n\
233 Initialization options:\n\
237 --batch do not do interactive display; implies -q\n\
238 --chdir DIR change to directory DIR\n\
239 --daemon start a server in the background\n\
240 --debug-init enable Emacs Lisp debugger for init file\n\
241 --display, -d DISPLAY use X server DISPLAY\n\
244 --no-desktop do not load a saved desktop\n\
245 --no-init-file, -q load neither ~/.emacs nor default.el\n\
246 --no-loadup, -nl do not load loadup.el into bare Emacs\n\
247 --no-site-file do not load site-start.el\n\
248 --no-x-resources do not load X resources\n\
249 --no-site-lisp, -nsl do not add site-lisp directories to load-path\n\
250 --no-splash do not display a splash screen on startup\n\
251 --no-window-system, -nw do not communicate with X, ignoring $DISPLAY\n\
254 --quick, -Q equivalent to:\n\
255 -q --no-site-file --no-site-lisp --no-splash\n\
257 --script FILE run FILE as an Emacs Lisp script\n\
258 --terminal, -t DEVICE use DEVICE for terminal I/O\n\
259 --user, -u USER load ~USER/.emacs instead of your own\n\
265 FILE visit FILE using find-file\n\
266 +LINE go to line LINE in next FILE\n\
267 +LINE:COLUMN go to line LINE, column COLUMN, in next FILE\n\
268 --directory, -L DIR prepend DIR to load-path (with :DIR, append DIR)\n\
269 --eval EXPR evaluate Emacs Lisp expression EXPR\n\
270 --execute EXPR evaluate Emacs Lisp expression EXPR\n\
273 --file FILE visit FILE using find-file\n\
274 --find-file FILE visit FILE using find-file\n\
275 --funcall, -f FUNC call Emacs Lisp function FUNC with no arguments\n\
276 --insert FILE insert contents of FILE into current buffer\n\
277 --kill exit without asking for confirmation\n\
278 --load, -l FILE load Emacs Lisp FILE using the load function\n\
279 --visit FILE visit FILE using find-file\n\
285 --background-color, -bg COLOR window background color\n\
286 --basic-display, -D disable many display features;\n\
287 used for debugging Emacs\n\
288 --border-color, -bd COLOR main border color\n\
289 --border-width, -bw WIDTH width of main border\n\
292 --color, --color=MODE override color mode for character terminals;\n\
293 MODE defaults to `auto', and\n\
294 can also be `never', `always',\n\
295 or a mode name like `ansi8'\n\
296 --cursor-color, -cr COLOR color of the Emacs cursor indicating point\n\
297 --font, -fn FONT default font; must be fixed-width\n\
298 --foreground-color, -fg COLOR window foreground color\n\
301 --fullheight, -fh make the first frame high as the screen\n\
302 --fullscreen, -fs make the first frame fullscreen\n\
303 --fullwidth, -fw make the first frame wide as the screen\n\
304 --maximized, -mm make the first frame maximized\n\
305 --geometry, -g GEOMETRY window geometry\n\
308 --no-bitmap-icon, -nbi do not use picture of gnu for Emacs icon\n\
309 --iconic start Emacs in iconified state\n\
310 --internal-border, -ib WIDTH width between text and main border\n\
311 --line-spacing, -lsp PIXELS additional space to put between lines\n\
312 --mouse-color, -ms COLOR mouse cursor color in Emacs window\n\
313 --name NAME title for initial Emacs frame\n\
316 --no-blinking-cursor, -nbc disable blinking cursor\n\
317 --reverse-video, -r, -rv switch foreground and background\n\
318 --title, -T TITLE title for initial Emacs frame\n\
319 --vertical-scroll-bars, -vb enable vertical scroll bars\n\
320 --xrm XRESOURCES set additional X resources\n\
321 --parent-id XID set parent window\n\
322 --help display this help and exit\n\
323 --version output version information and exit\n\
327 You can generally also specify long option names with a single -; for\n\
328 example, -batch as well as --batch. You can use any unambiguous\n\
329 abbreviation for a --option.\n\
331 Various environment variables and window system resources also affect\n\
332 the operation of Emacs. See the main documentation.\n\
334 Report bugs to " PACKAGE_BUGREPORT
". First, please see the Bugs\n\
335 section of the Emacs manual or the file BUGS.\n"
339 /* True if handling a fatal error already. */
340 bool fatal_error_in_progress
;
343 /* NS autrelease pool, for memory management. */
344 static void *ns_pool
;
349 setlocale (int cat
, char const *locale
)
355 /* True if the current system locale uses UTF-8 encoding. */
361 mbstate_t mbs
= { 0 };
362 return mbrtowc (&wc
, "\xc4\x80", 2, &mbs
) == 2 && wc
== 0x100;
369 /* Report a fatal error due to signal SIG, output a backtrace of at
370 most BACKTRACE_LIMIT lines, and exit. */
372 terminate_due_to_signal (int sig
, int backtrace_limit
)
374 signal (sig
, SIG_DFL
);
376 /* If fatal error occurs in code below, avoid infinite recursion. */
377 if (! fatal_error_in_progress
)
379 fatal_error_in_progress
= 1;
381 totally_unblock_input ();
382 if (sig
== SIGTERM
|| sig
== SIGHUP
|| sig
== SIGINT
)
383 Fkill_emacs (make_number (sig
));
385 shut_down_emacs (sig
, Qnil
);
386 emacs_backtrace (backtrace_limit
);
389 /* Signal the same code; this time it will really be fatal.
390 Since we're in a signal handler, the signal is blocked, so we
391 have to unblock it if we want to really receive it. */
395 sigemptyset (&unblocked
);
396 sigaddset (&unblocked
, sig
);
397 pthread_sigmask (SIG_UNBLOCK
, &unblocked
, 0);
403 /* This shouldn't be executed, but it prevents a warning. */
407 /* Code for dealing with Lisp access to the Unix command line. */
410 init_cmdargs (int argc
, char **argv
, int skip_args
, char *original_pwd
)
413 Lisp_Object name
, dir
, handler
;
414 ptrdiff_t count
= SPECPDL_INDEX ();
415 Lisp_Object raw_name
;
416 AUTO_STRING (slash_colon
, "/:");
422 /* Must use argv[0] converted to UTF-8, as it begets many standard
423 file and directory names. */
425 char argv0
[MAX_UTF8_PATH
];
427 if (filename_from_ansi (argv
[0], argv0
) == 0)
428 raw_name
= build_unibyte_string (argv0
);
430 raw_name
= build_unibyte_string (argv
[0]);
433 raw_name
= build_unibyte_string (argv
[0]);
436 /* Add /: to the front of the name
437 if it would otherwise be treated as magic. */
438 handler
= Ffind_file_name_handler (raw_name
, Qt
);
439 if (! NILP (handler
))
440 raw_name
= concat2 (slash_colon
, raw_name
);
442 Vinvocation_name
= Ffile_name_nondirectory (raw_name
);
443 Vinvocation_directory
= Ffile_name_directory (raw_name
);
445 /* If we got no directory in argv[0], search PATH to find where
446 Emacs actually came from. */
447 if (NILP (Vinvocation_directory
))
450 int yes
= openp (Vexec_path
, Vinvocation_name
,
451 Vexec_suffixes
, &found
, make_number (X_OK
), false);
454 /* Add /: to the front of the name
455 if it would otherwise be treated as magic. */
456 handler
= Ffind_file_name_handler (found
, Qt
);
457 if (! NILP (handler
))
458 found
= concat2 (slash_colon
, found
);
459 Vinvocation_directory
= Ffile_name_directory (found
);
463 if (!NILP (Vinvocation_directory
)
464 && NILP (Ffile_name_absolute_p (Vinvocation_directory
)))
465 /* Emacs was started with relative path, like ./emacs.
469 original_pwd
? build_unibyte_string (original_pwd
) : Qnil
;
471 Vinvocation_directory
= Fexpand_file_name (Vinvocation_directory
, odir
);
474 Vinstallation_directory
= Qnil
;
476 if (!NILP (Vinvocation_directory
))
478 dir
= Vinvocation_directory
;
480 /* If we are running from the build directory, set DIR to the
481 src subdirectory of the Emacs tree, like on Posix
483 if (SBYTES (dir
) > sizeof ("/i386/") - 1
484 && 0 == strcmp (SSDATA (dir
) + SBYTES (dir
) - sizeof ("/i386/") + 1,
486 dir
= Fexpand_file_name (build_string ("../.."), dir
);
487 #else /* !WINDOWSNT */
489 name
= Fexpand_file_name (Vinvocation_name
, dir
);
492 Lisp_Object tem
, lib_src_exists
;
493 Lisp_Object etc_exists
, info_exists
;
495 /* See if dir contains subdirs for use by Emacs.
496 Check for the ones that would exist in a build directory,
497 not including lisp and info. */
498 tem
= Fexpand_file_name (build_string ("lib-src"), dir
);
499 lib_src_exists
= Ffile_exists_p (tem
);
502 /* MSDOS installations frequently remove lib-src, but we still
503 must set installation-directory, or else info won't find
504 its files (it uses the value of installation-directory). */
505 tem
= Fexpand_file_name (build_string ("info"), dir
);
506 info_exists
= Ffile_exists_p (tem
);
511 if (!NILP (lib_src_exists
) || !NILP (info_exists
))
513 tem
= Fexpand_file_name (build_string ("etc"), dir
);
514 etc_exists
= Ffile_exists_p (tem
);
515 if (!NILP (etc_exists
))
517 Vinstallation_directory
518 = Ffile_name_as_directory (dir
);
523 /* See if dir's parent contains those subdirs. */
524 tem
= Fexpand_file_name (build_string ("../lib-src"), dir
);
525 lib_src_exists
= Ffile_exists_p (tem
);
529 /* See the MSDOS commentary above. */
530 tem
= Fexpand_file_name (build_string ("../info"), dir
);
531 info_exists
= Ffile_exists_p (tem
);
536 if (!NILP (lib_src_exists
) || !NILP (info_exists
))
538 tem
= Fexpand_file_name (build_string ("../etc"), dir
);
539 etc_exists
= Ffile_exists_p (tem
);
540 if (!NILP (etc_exists
))
542 tem
= Fexpand_file_name (build_string (".."), dir
);
543 Vinstallation_directory
544 = Ffile_name_as_directory (tem
);
549 /* If the Emacs executable is actually a link,
550 next try the dir that the link points into. */
551 tem
= Ffile_symlink_p (name
);
554 name
= Fexpand_file_name (tem
, dir
);
555 dir
= Ffile_name_directory (name
);
562 Vcommand_line_args
= Qnil
;
564 for (i
= argc
- 1; i
>= 0; i
--)
566 if (i
== 0 || i
> skip_args
)
567 /* For the moment, we keep arguments as is in unibyte strings.
568 They are decoded in the function command-line after we know
569 locale-coding-system. */
571 = Fcons (build_unibyte_string (argv
[i
]), Vcommand_line_args
);
574 unbind_to (count
, Qnil
);
577 DEFUN ("invocation-name", Finvocation_name
, Sinvocation_name
, 0, 0, 0,
578 doc
: /* Return the program name that was used to run Emacs.
579 Any directory names are omitted. */)
582 return Fcopy_sequence (Vinvocation_name
);
585 DEFUN ("invocation-directory", Finvocation_directory
, Sinvocation_directory
,
587 doc
: /* Return the directory name in which the Emacs executable was located. */)
590 return Fcopy_sequence (Vinvocation_directory
);
594 /* Test whether the next argument in ARGV matches SSTR or a prefix of
595 LSTR (at least MINLEN characters). If so, then if VALPTR is non-null
596 (the argument is supposed to have a value) store in *VALPTR either
597 the next argument or the portion of this one after the equal sign.
598 ARGV is read starting at position *SKIPPTR; this index is advanced
599 by the number of arguments used.
601 Too bad we can't just use getopt for all of this, but we don't have
602 enough information to do it right. */
605 argmatch (char **argv
, int argc
, const char *sstr
, const char *lstr
,
606 int minlen
, char **valptr
, int *skipptr
)
612 /* Don't access argv[argc]; give up in advance. */
613 if (argc
<= *skipptr
+ 1)
616 arg
= argv
[*skipptr
+1];
619 if (strcmp (arg
, sstr
) == 0)
623 *valptr
= argv
[*skipptr
+2];
630 arglen
= (valptr
!= NULL
&& (p
= strchr (arg
, '=')) != NULL
631 ? p
- arg
: strlen (arg
));
632 if (lstr
== 0 || arglen
< minlen
|| strncmp (arg
, lstr
, arglen
) != 0)
634 else if (valptr
== NULL
)
645 else if (argv
[*skipptr
+2] != NULL
)
647 *valptr
= argv
[*skipptr
+2];
657 #ifdef DOUG_LEA_MALLOC
659 /* malloc can be invoked even before main (e.g. by the dynamic
660 linker), so the dumped malloc state must be restored as early as
661 possible using this special hook. */
664 malloc_initialize_hook (void)
668 if (!malloc_using_checking
)
669 /* Work around a bug in glibc's malloc. MALLOC_CHECK_ must be
670 ignored if the heap to be restored was constructed without
671 malloc checking. Can't use unsetenv, since that calls malloc. */
675 for (p
= environ
; p
&& *p
; p
++)
676 if (strncmp (*p
, "MALLOC_CHECK_=", 14) == 0)
685 malloc_set_state (malloc_state_ptr
);
686 #ifndef XMALLOC_OVERRUN_CHECK
687 free (malloc_state_ptr
);
692 if (my_heap_start
== 0)
693 my_heap_start
= sbrk (0);
694 malloc_using_checking
= getenv ("MALLOC_CHECK_") != NULL
;
698 void (*__malloc_initialize_hook
) (void) EXTERNALLY_VISIBLE
= malloc_initialize_hook
;
700 #endif /* DOUG_LEA_MALLOC */
702 /* Close standard output and standard error, reporting any write
703 errors as best we can. This is intended for use with atexit. */
705 close_output_streams (void)
707 if (close_stream (stdout
) != 0)
709 emacs_perror ("Write error to standard output");
710 _exit (EXIT_FAILURE
);
713 if (close_stream (stderr
) != 0)
714 _exit (EXIT_FAILURE
);
719 main (int argc
, char **argv
)
722 char stack_bottom_variable
;
723 bool do_initial_setlocale
;
726 #ifdef HAVE_SETRLIMIT
732 #ifdef DAEMON_MUST_EXEC
737 /* If we use --chdir, this records the original directory. */
738 char *original_pwd
= 0;
743 might_dump
= !initialized
;
749 if (my_heap_start
== 0)
750 my_heap_start
= sbrk (0);
752 heap_bss_diff
= (char *)my_heap_start
- max (my_endbss
, my_endbss_static
);
756 #if defined WINDOWSNT || defined HAVE_NTGUI
757 /* Set global variables used to detect Windows version. Do this as
758 early as possible. (unexw32.c calls this function as well, but
759 the additional call here is harmless.) */
760 cache_system_info ();
762 /* On Windows 9X, we have to load UNICOWS.DLL as early as possible,
763 to have non-stub implementations of APIs we need to convert file
764 names between UTF-8 and the system's ANSI codepage. */
765 maybe_load_unicows_dll ();
767 /* This has to be done before module_init is called below, so that
768 the latter could use the thread ID of the main thread. */
769 w32_init_main_thread ();
772 #ifdef RUN_TIME_REMAP
774 run_time_remap (argv
[0]);
777 /* If using unexmacosx.c (set by s/darwin.h), we must do this. */
780 unexec_init_emacs_zone ();
783 atexit (close_output_streams
);
789 sort_args (argc
, argv
);
791 while (argv
[argc
]) argc
++;
793 if (argmatch (argv
, argc
, "-version", "--version", 3, NULL
, &skip_args
))
795 const char *version
, *copyright
;
798 Lisp_Object tem
, tem2
;
799 tem
= Fsymbol_value (intern_c_string ("emacs-version"));
800 tem2
= Fsymbol_value (intern_c_string ("emacs-copyright"));
803 fprintf (stderr
, "Invalid value of 'emacs-version'\n");
808 fprintf (stderr
, "Invalid value of 'emacs-copyright'\n");
813 version
= SSDATA (tem
);
814 copyright
= SSDATA (tem2
);
819 version
= emacs_version
;
820 copyright
= emacs_copyright
;
822 printf ("%s %s\n", PACKAGE_NAME
, version
);
823 printf ("%s\n", copyright
);
824 printf ("%s comes with ABSOLUTELY NO WARRANTY.\n", PACKAGE_NAME
);
825 printf ("You may redistribute copies of %s\n", PACKAGE_NAME
);
826 printf ("under the terms of the GNU General Public License.\n");
827 printf ("For more information about these matters, ");
828 printf ("see the file named COPYING.\n");
832 if (argmatch (argv
, argc
, "-chdir", "--chdir", 4, &ch_to_dir
, &skip_args
))
835 /* argv[] array is kept in its original ANSI codepage encoding,
836 we need to convert to UTF-8, for chdir to work. */
837 char newdir
[MAX_UTF8_PATH
];
839 filename_from_ansi (ch_to_dir
, newdir
);
842 original_pwd
= get_current_dir_name ();
843 if (chdir (ch_to_dir
) != 0)
845 fprintf (stderr
, "%s: Can't chdir to %s: %s\n",
846 argv
[0], ch_to_dir
, strerror (errno
));
851 dumping
= !initialized
&& (strcmp (argv
[argc
- 1], "dump") == 0
852 || strcmp (argv
[argc
- 1], "bootstrap") == 0);
854 #ifdef HAVE_PERSONALITY_LINUX32
855 if (dumping
&& ! getenv ("EMACS_HEAP_EXEC"))
857 /* Set this so we only do this once. */
858 xputenv ("EMACS_HEAP_EXEC=true");
860 /* A flag to turn off address randomization which is introduced
861 in linux kernel shipped with fedora core 4 */
862 #define ADD_NO_RANDOMIZE 0x0040000
863 personality (PER_LINUX32
| ADD_NO_RANDOMIZE
);
864 #undef ADD_NO_RANDOMIZE
866 execvp (argv
[0], argv
);
868 /* If the exec fails, try to dump anyway. */
869 emacs_perror (argv
[0]);
871 #endif /* HAVE_PERSONALITY_LINUX32 */
873 #if defined (HAVE_SETRLIMIT) && defined (RLIMIT_STACK) && !defined (CYGWIN)
874 /* Extend the stack space available. Don't do that if dumping,
875 since some systems (e.g. DJGPP) might define a smaller stack
876 limit at that time. And it's not needed on Cygwin, since emacs
877 is built with an 8MB stack. Moreover, the setrlimit call can
878 cause problems on Cygwin
879 (https://www.cygwin.com/ml/cygwin/2015-07/msg00096.html). */
882 && (!noninteractive
|| initialized
)
884 && !getrlimit (RLIMIT_STACK
, &rlim
))
887 /* Approximate the amount regex.c needs per unit of re_max_failures. */
888 int ratio
= 20 * sizeof (char *);
889 /* Then add 33% to cover the size of the smaller stacks that regex.c
890 successively allocates and discards, on its way to the maximum. */
892 /* Add in some extra to cover
893 what we're likely to use for other reasons. */
894 newlim
= re_max_failures
* ratio
+ 200000;
896 /* NetBSD (at least NetBSD 1.2G and former) has a bug in its
897 stack allocation routine for new process that the allocation
898 fails if stack limit is not on page boundary. So, round up the
899 new limit to page boundary. */
900 newlim
= (newlim
+ getpagesize () - 1) / getpagesize () * getpagesize ();
902 if (newlim
> rlim
.rlim_max
)
904 newlim
= rlim
.rlim_max
;
905 /* Don't let regex.c overflow the stack we have. */
906 re_max_failures
= (newlim
- 200000) / ratio
;
908 if (rlim
.rlim_cur
< newlim
)
909 rlim
.rlim_cur
= newlim
;
911 setrlimit (RLIMIT_STACK
, &rlim
);
913 #endif /* HAVE_SETRLIMIT and RLIMIT_STACK and not CYGWIN */
915 /* Record (approximately) where the stack begins. */
916 stack_bottom
= &stack_bottom_variable
;
920 emacs_backtrace (-1);
922 #if !defined SYSTEM_MALLOC && !defined HYBRID_MALLOC
923 /* Arrange to get warning messages as memory fills up. */
924 memory_warnings (0, malloc_warning
);
926 /* Call malloc at least once, to run malloc_initialize_hook.
927 Also call realloc and free for consistency. */
928 free (realloc (malloc (4), 4));
930 #endif /* not SYSTEM_MALLOC and not HYBRID_MALLOC */
933 SET_BINARY (fileno (stdin
));
935 SET_BINARY (fileno (stdout
));
938 /* Skip initial setlocale if LC_ALL is "C", as it's not needed in that case.
939 The build procedure uses this while dumping, to ensure that the
940 dumped Emacs does not have its system locale tables initialized,
941 as that might cause screwups when the dumped Emacs starts up. */
943 char *lc_all
= getenv ("LC_ALL");
944 do_initial_setlocale
= ! lc_all
|| strcmp (lc_all
, "C");
947 /* Set locale now, so that initial error messages are localized properly.
948 fixup_locale must wait until later, since it builds strings. */
949 if (do_initial_setlocale
)
950 setlocale (LC_ALL
, "");
951 text_quoting_flag
= using_utf8 ();
953 inhibit_window_system
= 0;
955 /* Handle the -t switch, which specifies filename to use as terminal. */
959 if (argmatch (argv
, argc
, "-t", "--terminal", 4, &term
, &skip_args
))
964 result
= emacs_open (term
, O_RDWR
, 0);
965 if (result
< 0 || fcntl (0, F_DUPFD_CLOEXEC
, 1) < 0)
967 char *errstring
= strerror (errno
);
968 fprintf (stderr
, "%s: %s: %s\n", argv
[0], term
, errstring
);
973 fprintf (stderr
, "%s: %s: not a tty\n", argv
[0], term
);
976 fprintf (stderr
, "Using %s\n", term
);
977 #ifdef HAVE_WINDOW_SYSTEM
978 inhibit_window_system
= 1; /* -t => -nw */
985 /* Command line option --no-windows is deprecated and thus not mentioned
986 in the manual and usage information. */
987 if (argmatch (argv
, argc
, "-nw", "--no-window-system", 6, NULL
, &skip_args
)
988 || argmatch (argv
, argc
, "-nw", "--no-windows", 6, NULL
, &skip_args
))
989 inhibit_window_system
= 1;
991 /* Handle the -batch switch, which means don't do interactive display. */
993 if (argmatch (argv
, argc
, "-batch", "--batch", 5, NULL
, &skip_args
))
996 Vundo_outer_limit
= Qnil
;
998 if (argmatch (argv
, argc
, "-script", "--script", 3, &junk
, &skip_args
))
1000 noninteractive
= 1; /* Set batch mode. */
1001 /* Convert --script to -scriptload, un-skip it, and sort again
1002 so that it will be handled in proper sequence. */
1003 /* FIXME broken for --script=FILE - is that supposed to work? */
1004 argv
[skip_args
- 1] = (char *) "-scriptload";
1006 sort_args (argc
, argv
);
1009 /* Handle the --help option, which gives a usage message. */
1010 if (argmatch (argv
, argc
, "-help", "--help", 3, NULL
, &skip_args
))
1013 printf ("Usage: %s [OPTION-OR-FILENAME]...\n", argv
[0]);
1014 for (i
= 0; i
< ARRAYELTS (usage_message
); i
++)
1015 fputs (usage_message
[i
], stdout
);
1020 /* Make sure IS_DAEMON starts up as false. */
1023 w32_daemon_event
= NULL
;
1026 if (argmatch (argv
, argc
, "-daemon", "--daemon", 5, NULL
, &skip_args
)
1027 || argmatch (argv
, argc
, "-daemon", "--daemon", 5, &dname_arg
, &skip_args
))
1032 /* Start as a daemon: fork a new child process which will run the
1033 rest of the initialization code, then exit.
1035 Detaching a daemon requires the following steps:
1039 - close the tty file-descriptors
1041 We only want to do the last 2 steps once the daemon is ready to
1042 serve requests, i.e. after loading .emacs (initialization).
1043 OTOH initialization may start subprocesses (e.g. ispell) and these
1044 should be run from the proper process (the one that will end up
1045 running as daemon) and with the proper "session id" in order for
1046 them to keep working after detaching, so fork and setsid need to be
1047 performed before initialization.
1049 We want to avoid exiting before the server socket is ready, so
1050 use a pipe for synchronization. The parent waits for the child
1051 to close its end of the pipe (using `daemon-initialized')
1053 if (emacs_pipe (daemon_pipe
) != 0)
1055 fprintf (stderr
, "Cannot pipe!\n");
1059 #ifndef DAEMON_MUST_EXEC
1061 fprintf (stderr
, "\nWarning: due to a long standing Gtk+ bug\nhttp://bugzilla.gnome.org/show_bug.cgi?id=85715\n\
1062 Emacs might crash when run in daemon mode and the X11 connection is unexpectedly lost.\n\
1063 Using an Emacs configured with --with-x-toolkit=lucid does not have this problem.\n");
1064 #endif /* USE_GTK */
1066 #else /* DAEMON_MUST_EXEC */
1067 if (!dname_arg
|| !strchr (dname_arg
, '\n'))
1068 f
= fork (); /* in orig */
1070 f
= 0; /* in exec'd */
1071 #endif /* !DAEMON_MUST_EXEC */
1077 /* Close unused writing end of the pipe. */
1078 emacs_close (daemon_pipe
[1]);
1080 /* Just wait for the child to close its end of the pipe. */
1083 retval
= read (daemon_pipe
[0], &buf
, 1);
1085 while (retval
== -1 && errno
== EINTR
);
1089 fprintf (stderr
, "Error reading status from child\n");
1092 else if (retval
== 0)
1094 fprintf (stderr
, "Error: server did not start correctly\n");
1098 emacs_close (daemon_pipe
[0]);
1103 emacs_perror ("fork");
1104 exit (EXIT_CANCELED
);
1107 #ifdef DAEMON_MUST_EXEC
1109 /* In orig process, forked as child, OR in exec'd. */
1110 if (!dname_arg
|| !strchr (dname_arg
, '\n'))
1111 { /* In orig, child: now exec w/special daemon name. */
1114 snprintf (fdStr
, sizeof fdStr
,
1115 "--daemon=\n%d,%d\n%s", daemon_pipe
[0],
1116 daemon_pipe
[1], dname_arg
? dname_arg
: "");
1118 if (! (0 <= fdStrlen
&& fdStrlen
< sizeof fdStr
))
1120 fprintf (stderr
, "daemon: child name too long\n");
1121 exit (EXIT_CANNOT_INVOKE
);
1124 argv
[skip_args
] = fdStr
;
1126 fcntl (daemon_pipe
[0], F_SETFD
, 0);
1127 fcntl (daemon_pipe
[1], F_SETFD
, 0);
1128 execvp (argv
[0], argv
);
1129 emacs_perror (argv
[0]);
1130 exit (errno
== ENOENT
? EXIT_ENOENT
: EXIT_CANNOT_INVOKE
);
1133 /* In exec'd: parse special dname into pipe and name info. */
1134 if (!dname_arg
|| !strchr (dname_arg
, '\n')
1135 || strlen (dname_arg
) < 1 || strlen (dname_arg
) > 70)
1137 fprintf (stderr
, "emacs daemon: daemon name absent or too long\n");
1138 exit (EXIT_CANNOT_INVOKE
);
1140 dname_arg2
[0] = '\0';
1141 sscanf (dname_arg
, "\n%d,%d\n%s", &(daemon_pipe
[0]), &(daemon_pipe
[1]),
1143 dname_arg
= *dname_arg2
? dname_arg2
: NULL
;
1144 fcntl (daemon_pipe
[1], F_SETFD
, FD_CLOEXEC
);
1146 #endif /* DAEMON_MUST_EXEC */
1148 /* Close unused reading end of the pipe. */
1149 emacs_close (daemon_pipe
[0]);
1152 #elif defined(WINDOWSNT)
1153 /* Indicate that we want daemon mode. */
1154 w32_daemon_event
= CreateEvent (NULL
, TRUE
, FALSE
, W32_DAEMON_EVENT
);
1155 if (w32_daemon_event
== NULL
)
1157 fprintf (stderr
, "Couldn't create MS-Windows event for daemon: %s\n",
1162 fprintf (stderr
, "This platform does not support the -daemon flag.\n");
1166 daemon_name
= xstrdup (dname_arg
);
1169 #if defined HAVE_PTHREAD && !defined SYSTEM_MALLOC \
1170 && !defined DOUG_LEA_MALLOC && !defined HYBRID_MALLOC
1171 # ifndef CANNOT_DUMP
1172 /* Do not make gmalloc thread-safe when creating bootstrap-emacs, as
1173 that causes an infinite recursive loop with FreeBSD. See
1174 Bug#14569. The part of this bug involving Cygwin is no longer
1175 relevant, now that Cygwin defines HYBRID_MALLOC. */
1176 if (!noninteractive
|| initialized
)
1178 malloc_enable_thread ();
1181 init_signals (dumping
);
1183 noninteractive1
= noninteractive
;
1185 /* Perform basic initializations (not merely interning symbols). */
1192 init_charset_once ();
1193 init_coding_once ();
1194 init_syntax_once (); /* Create standard syntax table. */
1195 init_category_once (); /* Create standard category table. */
1196 init_casetab_once (); /* Must be done before init_buffer_once. */
1197 init_buffer_once (); /* Create buffer table and some buffers. */
1198 init_minibuf_once (); /* Create list of minibuffers. */
1199 /* Must precede init_window_once. */
1201 /* Call syms_of_xfaces before init_window_once because that
1202 function creates Vterminal_frame. Termcap frames now use
1203 faces, and the face implementation uses some symbols as
1206 /* XXX syms_of_keyboard uses some symbols in keymap.c. It would
1207 be better to arrange things not to have this dependency. */
1209 /* Call syms_of_keyboard before init_window_once because
1210 keyboard sets up symbols that include some face names that
1211 the X support will want to use. This can happen when
1212 CANNOT_DUMP is defined. */
1213 syms_of_keyboard ();
1215 /* Called before syms_of_fileio, because it sets up Qerror_condition. */
1217 syms_of_fns (); /* Before syms_of_charset which uses hashtables. */
1219 /* Before syms_of_coding to initialize Vgc_cons_threshold. */
1221 /* May call Ffuncall and so GC, thus the latter should be initialized. */
1223 /* Before syms_of_coding because it initializes Qcharsetp. */
1225 /* Before init_window_once, because it sets up the
1226 Vcoding_system_hash_table. */
1227 syms_of_coding (); /* This should be after syms_of_fileio. */
1229 init_window_once (); /* Init the window system. */
1230 #ifdef HAVE_WINDOW_SYSTEM
1231 init_fringe_once (); /* Swap bitmaps if necessary. */
1232 #endif /* HAVE_WINDOW_SYSTEM */
1237 if (do_initial_setlocale
)
1240 Vsystem_messages_locale
= Vprevious_system_messages_locale
;
1241 Vsystem_time_locale
= Vprevious_system_time_locale
;
1246 running_asynch_code
= 0;
1250 = argmatch (argv
, argc
, "-nl", "--no-loadup", 6, NULL
, &skip_args
);
1253 = argmatch (argv
, argc
, "-nsl", "--no-site-lisp", 11, NULL
, &skip_args
);
1256 ns_pool
= ns_alloc_autorelease_pool ();
1257 #ifdef NS_IMPL_GNUSTEP
1258 /* GNUstep stupidly resets our locale settings after we made them. */
1262 if (!noninteractive
)
1264 #ifdef NS_IMPL_COCOA
1265 /* Started from GUI? */
1266 /* FIXME: Do the right thing if getenv returns NULL, or if
1268 if (! inhibit_window_system
&& ! isatty (0) && ! ch_to_dir
)
1269 chdir (getenv ("HOME"));
1270 if (skip_args
< argc
)
1272 if (!strncmp (argv
[skip_args
], "-psn", 4))
1275 if (! ch_to_dir
) chdir (getenv ("HOME"));
1277 else if (skip_args
+1 < argc
&& !strncmp (argv
[skip_args
+1], "-psn", 4))
1280 if (! ch_to_dir
) chdir (getenv ("HOME"));
1285 #endif /* HAVE_NS */
1287 #ifdef HAVE_X_WINDOWS
1288 /* Stupid kludge to catch command-line display spec. We can't
1289 handle this argument entirely in window system dependent code
1290 because we don't even know which window system dependent code
1291 to run until we've recognized this argument. */
1293 char *displayname
= 0;
1294 int count_before
= skip_args
;
1296 /* Skip any number of -d options, but only use the last one. */
1299 int count_before_this
= skip_args
;
1301 if (argmatch (argv
, argc
, "-d", "--display", 3, &displayname
, &skip_args
))
1303 else if (argmatch (argv
, argc
, "-display", 0, 3, &displayname
, &skip_args
))
1308 count_before
= count_before_this
;
1311 /* If we have the form --display=NAME,
1312 convert it into -d name.
1313 This requires inserting a new element into argv. */
1314 if (displayname
&& count_before
< skip_args
)
1316 if (skip_args
== count_before
+ 1)
1318 memmove (argv
+ count_before
+ 3, argv
+ count_before
+ 2,
1319 (argc
- (count_before
+ 2)) * sizeof *argv
);
1320 argv
[count_before
+ 2] = displayname
;
1323 argv
[count_before
+ 1] = (char *) "-d";
1328 if (argmatch (argv
, argc
, "-Q", "--quick", 3, NULL
, &skip_args
)
1329 || argmatch (argv
, argc
, "-quick", 0, 2, NULL
, &skip_args
))
1333 /* Don't actually discard this arg. */
1334 skip_args
= count_before
;
1336 #else /* !HAVE_X_WINDOWS */
1339 int count_before
= skip_args
;
1341 if (argmatch (argv
, argc
, "-Q", "--quick", 3, NULL
, &skip_args
)
1342 || argmatch (argv
, argc
, "-quick", 0, 2, NULL
, &skip_args
))
1345 skip_args
= count_before
;
1349 /* argmatch must not be used after here,
1350 except when building temacs
1351 because the -d argument has not been skipped in skip_args. */
1354 /* Call early 'cause init_environment needs it. */
1356 /* Set defaults for several environment variables. */
1358 init_environment (argc
, argv
, skip_args
);
1364 globals_of_kqueue ();
1367 #ifdef HAVE_GFILENOTIFY
1368 globals_of_gfilenotify ();
1373 #ifdef HAVE_W32NOTIFY
1374 globals_of_w32notify ();
1376 /* Initialize environment from registry settings. */
1377 init_environment (argv
);
1378 init_ntproc (dumping
); /* must precede init_editfns. */
1381 /* Initialize and GC-protect Vinitial_environment and
1382 Vprocess_environment before set_initial_environment fills them
1385 syms_of_callproc ();
1386 /* egetenv is a pretty low-level facility, which may get called in
1387 many circumstances; it seems flimsy to put off initializing it
1388 until calling init_callproc. Do not do it when dumping. */
1390 set_initial_environment ();
1392 /* AIX crashes are reported in system versions 3.2.3 and 3.2.4
1393 if this is not done. Do it after set_global_environment so that we
1394 don't pollute Vglobal_environment. */
1395 /* Setting LANG here will defeat the startup locale processing... */
1400 /* Init buffer storage and default directory of main buffer. */
1401 init_buffer (initialized
);
1403 init_callproc_1 (); /* Must precede init_cmdargs and init_sys_modes. */
1405 /* Must precede init_lread. */
1406 init_cmdargs (argc
, argv
, skip_args
, original_pwd
);
1410 /* Erase any pre-dump messages in the message log, to avoid confusion. */
1411 Lisp_Object old_log_max
;
1412 old_log_max
= Vmessage_log_max
;
1413 XSETFASTINT (Vmessage_log_max
, 0);
1414 message_dolog ("", 0, 1, 0);
1415 Vmessage_log_max
= old_log_max
;
1418 init_callproc (); /* Must follow init_cmdargs but not init_sys_modes. */
1422 /* Check to see if Emacs has been installed correctly. */
1423 check_windows_init_file ();
1426 /* Intern the names of all standard functions and variables;
1427 define standard keys. */
1431 /* The basic levels of Lisp must come first. Note that
1432 syms_of_data and some others have already been called. */
1437 syms_of_floatfns ();
1440 syms_of_bytecode ();
1442 syms_of_casefiddle ();
1444 syms_of_category ();
1446 syms_of_character ();
1453 syms_of_filelock ();
1456 /* syms_of_keymap (); */
1464 syms_of_terminal ();
1475 syms_of_textprop ();
1476 syms_of_composite ();
1479 #endif /* WINDOWSNT */
1486 #ifdef HAVE_WINDOW_SYSTEM
1489 #endif /* HAVE_WINDOW_SYSTEM */
1490 #ifdef HAVE_X_WINDOWS
1495 #ifdef HAVE_XWIDGETS
1498 syms_of_xsettings ();
1505 #endif /* HAVE_X_WINDOWS */
1512 syms_of_decompress ();
1522 #endif /* HAVE_NTGUI */
1524 #if defined WINDOWSNT || defined HAVE_NTGUI
1525 syms_of_w32select ();
1532 syms_of_win16select ();
1539 syms_of_nsselect ();
1541 #endif /* HAVE_NS */
1547 #endif /* HAVE_INOTIFY */
1551 #endif /* HAVE_KQUEUE */
1553 #ifdef HAVE_GFILENOTIFY
1554 syms_of_gfilenotify ();
1555 #endif /* HAVE_GFILENOTIFY */
1558 syms_of_dbusbind ();
1559 #endif /* HAVE_DBUS */
1563 #ifdef HAVE_W32NOTIFY
1564 syms_of_w32notify ();
1565 #endif /* HAVE_W32NOTIFY */
1566 #endif /* WINDOWSNT */
1568 syms_of_profiler ();
1570 keys_of_casefiddle ();
1573 keys_of_keyboard ();
1579 /* Initialization that must be done even if the global variable
1580 initialized is non zero. */
1582 globals_of_w32font ();
1583 globals_of_w32fns ();
1584 globals_of_w32menu ();
1585 #endif /* HAVE_NTGUI */
1587 #if defined WINDOWSNT || defined HAVE_NTGUI
1588 globals_of_w32select ();
1594 /* This calls putenv and so must precede init_process_emacs. Also,
1595 it sets Voperating_system_release, which init_process_emacs uses. */
1596 init_editfns (dumping
);
1598 /* These two call putenv. */
1606 /* This can create a thread that may call getenv, so it must follow
1607 all calls to putenv and setenv. Also, this sets up
1608 add_keyboard_wait_descriptor, which init_display uses. */
1609 init_process_emacs ();
1611 init_keyboard (); /* This too must precede init_sys_modes. */
1612 if (!noninteractive
)
1613 init_display (); /* Determine terminal type. Calls init_sys_modes. */
1616 init_crit (); /* w32notify.c needs this in batch mode. */
1617 #endif /* HAVE_W32NOTIFY */
1619 #ifdef HAVE_WINDOW_SYSTEM
1621 #endif /* HAVE_WINDOW_SYSTEM */
1629 /* Handle -l loadup, args passed by Makefile. */
1630 if (argmatch (argv
, argc
, "-l", "--load", 3, &file
, &skip_args
))
1633 char file_utf8
[MAX_UTF8_PATH
];
1635 if (filename_from_ansi (file
, file_utf8
) == 0)
1638 Vtop_level
= list2 (Qload
, build_unibyte_string (file
));
1640 /* Unless next switch is -nl, load "loadup.el" first thing. */
1642 Vtop_level
= list2 (Qload
, build_string ("loadup.el"));
1645 /* Set up for profiling. This is known to work on FreeBSD,
1646 GNU/Linux and MinGW. It might work on some other systems too.
1647 Give it a try and tell us if it works on your system. To compile
1648 for profiling, use the configure option --enable-profiling. */
1649 #if defined (__FreeBSD__) || defined (GNU_LINUX) || defined (__MINGW32__)
1654 extern unsigned char etext
asm ("etext");
1660 monstartup ((uintptr_t) __executable_start
, (uintptr_t) &etext
);
1669 /* Enter editor command loop. This never returns. */
1675 /* Sort the args so we can find the most important ones
1676 at the beginning of argv. */
1678 /* First, here's a table of all the standard options. */
1680 struct standard_args
1683 const char *longname
;
1688 static const struct standard_args standard_args
[] =
1690 { "-version", "--version", 150, 0 },
1691 { "-chdir", "--chdir", 130, 1 },
1692 { "-t", "--terminal", 120, 1 },
1693 { "-nw", "--no-window-system", 110, 0 },
1694 { "-nw", "--no-windows", 110, 0 },
1695 { "-batch", "--batch", 100, 0 },
1696 { "-script", "--script", 100, 1 },
1697 { "-daemon", "--daemon", 99, 0 },
1698 { "-help", "--help", 90, 0 },
1699 { "-nl", "--no-loadup", 70, 0 },
1700 { "-nsl", "--no-site-lisp", 65, 0 },
1701 /* -d must come last before the options handled in startup.el. */
1702 { "-d", "--display", 60, 1 },
1703 { "-display", 0, 60, 1 },
1704 /* Now for the options handled in `command-line' (startup.el). */
1705 /* (Note that to imply -nsl, -Q is partially handled here.) */
1706 { "-Q", "--quick", 55, 0 },
1707 { "-quick", 0, 55, 0 },
1708 { "-q", "--no-init-file", 50, 0 },
1709 { "-no-init-file", 0, 50, 0 },
1710 { "-no-x-resources", "--no-x-resources", 40, 0 },
1711 { "-no-site-file", "--no-site-file", 40, 0 },
1712 { "-u", "--user", 30, 1 },
1713 { "-user", 0, 30, 1 },
1714 { "-debug-init", "--debug-init", 20, 0 },
1715 { "-iconic", "--iconic", 15, 0 },
1716 { "-D", "--basic-display", 12, 0},
1717 { "-basic-display", 0, 12, 0},
1718 { "-nbc", "--no-blinking-cursor", 12, 0 },
1719 /* Now for the options handled in `command-line-1' (startup.el). */
1720 { "-nbi", "--no-bitmap-icon", 10, 0 },
1721 { "-bg", "--background-color", 10, 1 },
1722 { "-background", 0, 10, 1 },
1723 { "-fg", "--foreground-color", 10, 1 },
1724 { "-foreground", 0, 10, 1 },
1725 { "-bd", "--border-color", 10, 1 },
1726 { "-bw", "--border-width", 10, 1 },
1727 { "-ib", "--internal-border", 10, 1 },
1728 { "-ms", "--mouse-color", 10, 1 },
1729 { "-cr", "--cursor-color", 10, 1 },
1730 { "-fn", "--font", 10, 1 },
1731 { "-font", 0, 10, 1 },
1732 { "-fs", "--fullscreen", 10, 0 },
1733 { "-fw", "--fullwidth", 10, 0 },
1734 { "-fh", "--fullheight", 10, 0 },
1735 { "-mm", "--maximized", 10, 0 },
1736 { "-g", "--geometry", 10, 1 },
1737 { "-geometry", 0, 10, 1 },
1738 { "-T", "--title", 10, 1 },
1739 { "-title", 0, 10, 1 },
1740 { "-name", "--name", 10, 1 },
1741 { "-xrm", "--xrm", 10, 1 },
1742 { "-parent-id", "--parent-id", 10, 1 },
1743 { "-r", "--reverse-video", 5, 0 },
1745 { "-reverse", 0, 5, 0 },
1746 { "-hb", "--horizontal-scroll-bars", 5, 0 },
1747 { "-vb", "--vertical-scroll-bars", 5, 0 },
1748 { "-color", "--color", 5, 0},
1749 { "-no-splash", "--no-splash", 3, 0 },
1750 { "-no-desktop", "--no-desktop", 3, 0 },
1752 { "-NSAutoLaunch", 0, 5, 1 },
1753 { "-NXAutoLaunch", 0, 5, 1 },
1754 { "-_NSMachLaunch", 0, 85, 1 },
1755 { "-MachLaunch", 0, 85, 1 },
1756 { "-macosx", 0, 85, 0 },
1757 { "-NSHost", 0, 85, 1 },
1759 /* These have the same priority as ordinary file name args,
1760 so they are not reordered with respect to those. */
1761 { "-L", "--directory", 0, 1 },
1762 { "-directory", 0, 0, 1 },
1763 { "-l", "--load", 0, 1 },
1764 { "-load", 0, 0, 1 },
1765 /* This has no longname, because using --scriptload confuses sort_args,
1766 because then the --script long option seems to match twice; ie
1767 you can't have a long option which is a prefix of another long
1768 option. In any case, this is entirely an internal option. */
1769 { "-scriptload", NULL
, 0, 1 },
1770 { "-f", "--funcall", 0, 1 },
1771 { "-funcall", 0, 0, 1 },
1772 { "-eval", "--eval", 0, 1 },
1773 { "-execute", "--execute", 0, 1 },
1774 { "-find-file", "--find-file", 0, 1 },
1775 { "-visit", "--visit", 0, 1 },
1776 { "-file", "--file", 0, 1 },
1777 { "-insert", "--insert", 0, 1 },
1779 { "-NXOpen", 0, 0, 1 },
1780 { "-NXOpenTemp", 0, 0, 1 },
1781 { "-NSOpen", 0, 0, 1 },
1782 { "-NSOpenTemp", 0, 0, 1 },
1783 { "-GSFilePath", 0, 0, 1 },
1785 /* This should be processed after ordinary file name args and the like. */
1786 { "-kill", "--kill", -10, 0 },
1789 /* Reorder the elements of ARGV (assumed to have ARGC elements)
1790 so that the highest priority ones come first.
1791 Do not change the order of elements of equal priority.
1792 If an option takes an argument, keep it and its argument together.
1794 If an option that takes no argument appears more
1795 than once, eliminate all but one copy of it. */
1798 sort_args (int argc
, char **argv
)
1800 char **new = xmalloc (argc
* sizeof *new);
1801 /* For each element of argv,
1802 the corresponding element of options is:
1803 0 for an option that takes no arguments,
1804 1 for an option that takes one argument, etc.
1805 -1 for an ordinary non-option argument. */
1806 int *options
= xnmalloc (argc
, sizeof *options
);
1807 int *priority
= xnmalloc (argc
, sizeof *priority
);
1809 int incoming_used
= 1;
1813 /* Categorize all the options,
1814 and figure out which argv elts are option arguments. */
1815 for (from
= 1; from
< argc
; from
++)
1819 if (argv
[from
][0] == '-')
1823 /* If we have found "--", don't consider
1824 any more arguments as options. */
1825 if (argv
[from
][1] == '-' && argv
[from
][2] == 0)
1827 /* Leave the "--", and everything following it, at the end. */
1828 for (; from
< argc
; from
++)
1830 priority
[from
] = -100;
1836 /* Look for a match with a known old-fashioned option. */
1837 for (i
= 0; i
< ARRAYELTS (standard_args
); i
++)
1838 if (!strcmp (argv
[from
], standard_args
[i
].name
))
1840 options
[from
] = standard_args
[i
].nargs
;
1841 priority
[from
] = standard_args
[i
].priority
;
1842 if (from
+ standard_args
[i
].nargs
>= argc
)
1843 fatal ("Option '%s' requires an argument\n", argv
[from
]);
1844 from
+= standard_args
[i
].nargs
;
1848 /* Look for a match with a known long option.
1849 MATCH is -1 if no match so far, -2 if two or more matches so far,
1850 >= 0 (the table index of the match) if just one match so far. */
1851 if (argv
[from
][1] == '-')
1853 char const *equals
= strchr (argv
[from
], '=');
1855 equals
? equals
- argv
[from
] : strlen (argv
[from
]);
1859 for (i
= 0; i
< ARRAYELTS (standard_args
); i
++)
1860 if (standard_args
[i
].longname
1861 && !strncmp (argv
[from
], standard_args
[i
].longname
,
1870 /* If we found exactly one match, use that. */
1873 options
[from
] = standard_args
[match
].nargs
;
1874 priority
[from
] = standard_args
[match
].priority
;
1875 /* If --OPTION=VALUE syntax is used,
1876 this option uses just one argv element. */
1879 if (from
+ options
[from
] >= argc
)
1880 fatal ("Option '%s' requires an argument\n", argv
[from
]);
1881 from
+= options
[from
];
1883 /* FIXME When match < 0, shouldn't there be some error,
1884 or at least indication to the user that there was a
1891 /* Copy the arguments, in order of decreasing priority, to NEW. */
1893 while (incoming_used
< argc
)
1896 int best_priority
= -9999;
1898 /* Find the highest priority remaining option.
1899 If several have equal priority, take the first of them. */
1900 for (from
= 1; from
< argc
; from
++)
1902 if (argv
[from
] != 0 && priority
[from
] > best_priority
)
1904 best_priority
= priority
[from
];
1907 /* Skip option arguments--they are tied to the options. */
1908 if (options
[from
] > 0)
1909 from
+= options
[from
];
1915 /* Copy the highest priority remaining option, with its args, to NEW.
1916 Unless it is a duplicate of the previous one. */
1917 if (! (options
[best
] == 0
1918 && ! strcmp (new[to
- 1], argv
[best
])))
1920 new[to
++] = argv
[best
];
1921 for (i
= 0; i
< options
[best
]; i
++)
1922 new[to
++] = argv
[best
+ i
+ 1];
1925 incoming_used
+= 1 + (options
[best
] > 0 ? options
[best
] : 0);
1927 /* Clear out this option in ARGV. */
1929 for (i
= 0; i
< options
[best
]; i
++)
1930 argv
[best
+ i
+ 1] = 0;
1933 /* If duplicate options were deleted, fill up extra space with null ptrs. */
1937 memcpy (argv
, new, sizeof (char *) * argc
);
1944 DEFUN ("kill-emacs", Fkill_emacs
, Skill_emacs
, 0, 1, "P",
1945 doc
: /* Exit the Emacs job and kill it.
1946 If ARG is an integer, return ARG as the exit program code.
1947 If ARG is a string, stuff it as keyboard input.
1949 This function is called upon receipt of the signals SIGTERM
1950 or SIGHUP, and upon SIGINT in batch mode.
1952 The value of `kill-emacs-hook', if not void,
1953 is a list of functions (of no args),
1954 all of which are called before Emacs is actually killed. */
1955 attributes
: noreturn
)
1960 /* Fsignal calls emacs_abort () if it sees that waiting_for_input is
1962 waiting_for_input
= 0;
1963 run_hook (Qkill_emacs_hook
);
1965 #ifdef HAVE_X_WINDOWS
1966 /* Transfer any clipboards we own to the clipboard manager. */
1967 x_clipboard_manager_save_all ();
1970 shut_down_emacs (0, (STRINGP (arg
) && !feof (stdin
)) ? arg
: Qnil
);
1973 ns_release_autorelease_pool (ns_pool
);
1976 /* If we have an auto-save list file,
1977 kill it because we are exiting Emacs deliberately (not crashing).
1978 Do it after shut_down_emacs, which does an auto-save. */
1979 if (STRINGP (Vauto_save_list_file_name
))
1981 Lisp_Object listfile
;
1982 listfile
= Fexpand_file_name (Vauto_save_list_file_name
, Qnil
);
1983 unlink (SSDATA (listfile
));
1987 exit_code
= (XINT (arg
) < 0
1988 ? XINT (arg
) | INT_MIN
1989 : XINT (arg
) & INT_MAX
);
1991 exit_code
= EXIT_SUCCESS
;
1996 /* Perform an orderly shutdown of Emacs. Autosave any modified
1997 buffers, kill any child processes, clean up the terminal modes (if
1998 we're in the foreground), and other stuff like that. Don't perform
1999 any redisplay; this may be called when Emacs is shutting down in
2000 the background, or after its X connection has died.
2002 If SIG is a signal number, print a message for it.
2004 This is called by fatal signal handlers, X protocol error handlers,
2008 shut_down_emacs (int sig
, Lisp_Object stuff
)
2010 /* Prevent running of hooks from now on. */
2013 /* Don't update display from now on. */
2014 Vinhibit_redisplay
= Qt
;
2016 /* If we are controlling the terminal, reset terminal modes. */
2019 pid_t pgrp
= getpgrp ();
2020 pid_t tpgrp
= tcgetpgrp (0);
2021 if ((tpgrp
!= -1) && tpgrp
== pgrp
)
2023 reset_all_sys_modes ();
2024 if (sig
&& sig
!= SIGTERM
)
2026 static char const format
[] = "Fatal error %d: ";
2027 char buf
[sizeof format
- 2 + INT_STRLEN_BOUND (int)];
2028 int buflen
= sprintf (buf
, format
, sig
);
2029 char const *sig_desc
= safe_strsignal (sig
);
2030 emacs_write (STDERR_FILENO
, buf
, buflen
);
2031 emacs_write (STDERR_FILENO
, sig_desc
, strlen (sig_desc
));
2037 reset_all_sys_modes ();
2040 stuff_buffered_input (stuff
);
2042 inhibit_sentinels
= 1;
2043 kill_buffer_processes (Qnil
);
2044 Fdo_auto_save (Qt
, Qnil
);
2046 unlock_all_files ();
2048 /* There is a tendency for a SIGIO signal to arrive within exit,
2049 and cause a SIGHUP because the input descriptor is already closed. */
2052 /* Do this only if terminating normally, we want glyph matrices
2053 etc. in a core dump. */
2054 if (sig
== 0 || sig
== SIGTERM
)
2056 check_glyph_memory ();
2057 check_message_stack ();
2065 ns_term_shutdown (sig
);
2069 xml_cleanup_parser ();
2083 DEFUN ("dump-emacs", Fdump_emacs
, Sdump_emacs
, 2, 2, 0,
2084 doc
: /* Dump current state of Emacs into executable file FILENAME.
2085 Take symbols from SYMFILE (presumably the file you executed to run Emacs).
2086 This is used in the file `loadup.el' when building Emacs.
2088 You must run Emacs in batch mode in order to dump it. */)
2089 (Lisp_Object filename
, Lisp_Object symfile
)
2093 ptrdiff_t count
= SPECPDL_INDEX ();
2097 if (! noninteractive
)
2098 error ("Dumping Emacs works only in batch mode");
2101 error ("Emacs can be dumped only once");
2105 /* Warn if the gap between BSS end and heap start is larger than this. */
2106 # define MAX_HEAP_BSS_DIFF (1024*1024)
2108 if (heap_bss_diff
> MAX_HEAP_BSS_DIFF
)
2110 fprintf (stderr
, "**************************************************\n");
2111 fprintf (stderr
, "Warning: Your system has a gap between BSS and the\n");
2112 fprintf (stderr
, "heap (%"pMu
" bytes). This usually means that exec-shield\n",
2114 fprintf (stderr
, "or something similar is in effect. The dump may\n");
2115 fprintf (stderr
, "fail because of this. See the section about\n");
2116 fprintf (stderr
, "exec-shield in etc/PROBLEMS for more information.\n");
2117 fprintf (stderr
, "**************************************************\n");
2119 #endif /* GNU_LINUX */
2121 /* Bind `command-line-processed' to nil before dumping,
2122 so that the dumped Emacs will process its command line
2123 and set up to work with X windows if appropriate. */
2124 symbol
= intern ("command-line-processed");
2125 specbind (symbol
, Qnil
);
2127 CHECK_STRING (filename
);
2128 filename
= Fexpand_file_name (filename
, Qnil
);
2129 filename
= ENCODE_FILE (filename
);
2130 if (!NILP (symfile
))
2132 CHECK_STRING (symfile
);
2133 if (SCHARS (symfile
))
2135 symfile
= Fexpand_file_name (symfile
, Qnil
);
2136 symfile
= ENCODE_FILE (symfile
);
2141 Vpurify_flag
= Qnil
;
2144 /* Tell malloc where start of impure now is. */
2145 /* Also arrange for warnings when nearly out of space. */
2146 #if !defined SYSTEM_MALLOC && !defined HYBRID_MALLOC
2148 /* On Windows, this was done before dumping, and that once suffices.
2149 Meanwhile, my_edata is not valid on Windows. */
2150 memory_warnings (my_edata
, malloc_warning
);
2151 #endif /* not WINDOWSNT */
2152 #endif /* not SYSTEM_MALLOC and not HYBRID_MALLOC */
2153 #ifdef DOUG_LEA_MALLOC
2154 malloc_state_ptr
= malloc_get_state ();
2157 unexec (SSDATA (filename
), !NILP (symfile
) ? SSDATA (symfile
) : 0);
2159 #ifdef DOUG_LEA_MALLOC
2160 free (malloc_state_ptr
);
2164 Vlibrary_cache
= Qnil
;
2166 #ifdef HAVE_WINDOW_SYSTEM
2167 reset_image_types ();
2172 return unbind_to (count
, Qnil
);
2175 #endif /* not CANNOT_DUMP */
2178 /* Recover from setlocale (LC_ALL, ""). */
2182 /* The Emacs Lisp reader needs LC_NUMERIC to be "C",
2183 so that numbers are read and printed properly for Emacs Lisp. */
2184 setlocale (LC_NUMERIC
, "C");
2187 /* Set system locale CATEGORY, with previous locale *PLOCALE, to
2190 synchronize_locale (int category
, Lisp_Object
*plocale
, Lisp_Object desired_locale
)
2192 if (! EQ (*plocale
, desired_locale
))
2194 *plocale
= desired_locale
;
2196 /* Changing categories like LC_TIME usually requires to specify
2197 an encoding suitable for the new locale, but MS-Windows's
2198 'setlocale' will only switch the encoding when LC_ALL is
2199 specified. So we ignore CATEGORY, use LC_ALL instead, and
2200 then restore LC_NUMERIC to "C", so reading and printing
2201 numbers is unaffected. */
2202 setlocale (LC_ALL
, (STRINGP (desired_locale
)
2203 ? SSDATA (desired_locale
)
2206 #else /* !WINDOWSNT */
2207 setlocale (category
, (STRINGP (desired_locale
)
2208 ? SSDATA (desired_locale
)
2210 #endif /* !WINDOWSNT */
2214 /* Set system time locale to match Vsystem_time_locale, if possible. */
2216 synchronize_system_time_locale (void)
2218 synchronize_locale (LC_TIME
, &Vprevious_system_time_locale
,
2219 Vsystem_time_locale
);
2222 /* Set system messages locale to match Vsystem_messages_locale, if
2225 synchronize_system_messages_locale (void)
2228 synchronize_locale (LC_MESSAGES
, &Vprevious_system_messages_locale
,
2229 Vsystem_messages_locale
);
2232 #endif /* HAVE_SETLOCALE */
2236 decode_env_path (const char *evarname
, const char *defalt
, bool empty
)
2238 const char *path
, *p
;
2239 Lisp_Object lpath
, element
, tem
;
2240 /* Default is to use "." for empty path elements.
2241 But if argument EMPTY is true, use nil instead. */
2242 Lisp_Object empty_element
= empty
? Qnil
: build_string (".");
2245 static const char *emacs_dir_env
= "%emacs_dir%/";
2246 const size_t emacs_dir_len
= strlen (emacs_dir_env
);
2247 const char *edir
= egetenv ("emacs_dir");
2248 char emacs_dir
[MAX_UTF8_PATH
];
2250 /* egetenv looks in process-environment, which holds the variables
2251 in their original system-locale encoding. We need emacs_dir to
2254 filename_from_ansi (edir
, emacs_dir
);
2257 /* It's okay to use getenv here, because this function is only used
2258 to initialize variables when Emacs starts up, and isn't called
2261 path
= getenv (evarname
);
2272 /* Ensure values from the environment use the proper directory separator. */
2278 char *path_utf8
, *q
, *d
;
2281 /* Convert each element of PATH to UTF-8. */
2282 p
= path_copy
= alloca (strlen (path
) + 1);
2283 strcpy (path_copy
, path
);
2284 d
= path_utf8
= alloca (4 * strlen (path
) + 1);
2287 q
= _mbschr (p
, SEPCHAR
);
2290 cnv_result
= filename_from_ansi (p
, d
);
2295 /* If conversion of this PATH elements fails, make sure
2296 destination pointer will stay put, thus effectively
2297 ignoring the offending element. */
2298 if (cnv_result
== 0)
2304 else if (cnv_result
!= 0 && d
> path_utf8
)
2305 d
[-1] = '\0'; /* remove last semi-colon and null-terminate PATH */
2307 path_copy
= path_utf8
;
2309 path_copy
= alloca (strlen (path
) + 1);
2310 strcpy (path_copy
, path
);
2312 dostounix_filename (path_copy
);
2319 p
= strchr (path
, SEPCHAR
);
2321 p
= path
+ strlen (path
);
2322 element
= ((p
- path
) ? make_unibyte_string (path
, p
- path
)
2324 if (! NILP (element
))
2327 /* Relative file names in the default path are interpreted as
2328 being relative to $emacs_dir. */
2329 if (edir
&& defaulted
2330 && strncmp (path
, emacs_dir_env
, emacs_dir_len
) == 0)
2331 element
= Fexpand_file_name (Fsubstring
2333 make_number (emacs_dir_len
),
2335 build_unibyte_string (emacs_dir
));
2338 /* Add /: to the front of the name
2339 if it would otherwise be treated as magic. */
2340 tem
= Ffind_file_name_handler (element
, Qt
);
2342 /* However, if the handler says "I'm safe",
2343 don't bother adding /:. */
2347 prop
= Fget (tem
, intern ("safe-magic"));
2354 AUTO_STRING (slash_colon
, "/:");
2355 element
= concat2 (slash_colon
, element
);
2357 } /* !NILP (element) */
2359 lpath
= Fcons (element
, lpath
);
2365 return Fnreverse (lpath
);
2368 DEFUN ("daemonp", Fdaemonp
, Sdaemonp
, 0, 0, 0,
2369 doc
: /* Return non-nil if the current emacs process is a daemon.
2370 If the daemon was given a name argument, return that name. */)
2375 return build_string (daemon_name
);
2382 DEFUN ("daemon-initialized", Fdaemon_initialized
, Sdaemon_initialized
, 0, 0, 0,
2383 doc
: /* Mark the Emacs daemon as being initialized.
2384 This finishes the daemonization process by doing the other half of detaching
2385 from the parent process and its tty file descriptors. */)
2391 error ("This function can only be called if emacs is run as a daemon");
2393 if (!DAEMON_RUNNING
)
2394 error ("The daemon has already been initialized");
2396 if (NILP (Vafter_init_time
))
2397 error ("This function can only be called after loading the init files");
2401 /* Get rid of stdin, stdout and stderr. */
2402 nfd
= emacs_open ("/dev/null", O_RDWR
, 0);
2404 err
|= dup2 (nfd
, 0) < 0;
2405 err
|= dup2 (nfd
, 1) < 0;
2406 err
|= dup2 (nfd
, 2) < 0;
2407 err
|= emacs_close (nfd
) != 0;
2409 /* Closing the pipe will notify the parent that it can exit.
2410 FIXME: In case some other process inherited the pipe, closing it here
2411 won't notify the parent because it's still open elsewhere, so we
2412 additionally send a byte, just to make sure the parent really exits.
2413 Instead, we should probably close the pipe in start-process and
2414 call-process to make sure the pipe is never inherited by
2416 err
|= write (daemon_pipe
[1], "\n", 1) < 0;
2417 err
|= emacs_close (daemon_pipe
[1]) != 0;
2418 /* Set it to an invalid value so we know we've already run this function. */
2419 daemon_pipe
[1] = -1;
2420 #else /* WINDOWSNT */
2421 /* Signal the waiting emacsclient process. */
2422 err
|= SetEvent (w32_daemon_event
) == 0;
2423 err
|= CloseHandle (w32_daemon_event
) == 0;
2424 /* Set it to an invalid value so we know we've already run this function. */
2425 w32_daemon_event
= INVALID_HANDLE_VALUE
;
2429 error ("I/O error during daemon initialization");
2434 syms_of_emacs (void)
2436 DEFSYM (Qfile_name_handler_alist
, "file-name-handler-alist");
2437 DEFSYM (Qrisky_local_variable
, "risky-local-variable");
2438 DEFSYM (Qkill_emacs
, "kill-emacs");
2439 DEFSYM (Qkill_emacs_hook
, "kill-emacs-hook");
2442 defsubr (&Sdump_emacs
);
2445 defsubr (&Skill_emacs
);
2447 defsubr (&Sinvocation_name
);
2448 defsubr (&Sinvocation_directory
);
2449 defsubr (&Sdaemonp
);
2450 defsubr (&Sdaemon_initialized
);
2452 DEFVAR_LISP ("command-line-args", Vcommand_line_args
,
2453 doc
: /* Args passed by shell to Emacs, as a list of strings.
2454 Many arguments are deleted from the list as they are processed. */);
2456 DEFVAR_LISP ("system-type", Vsystem_type
,
2457 doc
: /* The value is a symbol indicating the type of operating system you are using.
2459 `gnu' compiled for a GNU Hurd system.
2460 `gnu/linux' compiled for a GNU/Linux system.
2461 `gnu/kfreebsd' compiled for a GNU system with a FreeBSD kernel.
2462 `darwin' compiled for Darwin (GNU-Darwin, Mac OS X, ...).
2463 `ms-dos' compiled as an MS-DOS application.
2464 `windows-nt' compiled as a native W32 application.
2465 `cygwin' compiled using the Cygwin library.
2466 Anything else (in Emacs 24.1, the possibilities are: aix, berkeley-unix,
2467 hpux, irix, usg-unix-v) indicates some sort of Unix system. */);
2468 Vsystem_type
= intern_c_string (SYSTEM_TYPE
);
2469 /* See configure.ac for the possible SYSTEM_TYPEs. */
2471 DEFVAR_LISP ("system-configuration", Vsystem_configuration
,
2472 doc
: /* Value is string indicating configuration Emacs was built for. */);
2473 Vsystem_configuration
= build_string (EMACS_CONFIGURATION
);
2475 DEFVAR_LISP ("system-configuration-options", Vsystem_configuration_options
,
2476 doc
: /* String containing the configuration options Emacs was built with. */);
2477 Vsystem_configuration_options
= build_string (EMACS_CONFIG_OPTIONS
);
2479 DEFVAR_LISP ("system-configuration-features", Vsystem_configuration_features
,
2480 doc
: /* String listing some of the main features this Emacs was compiled with.
2481 An element of the form \"FOO\" generally means that HAVE_FOO was
2482 defined during the build.
2484 This is mainly intended for diagnostic purposes in bug reports.
2485 Don't rely on it for testing whether a feature you want to use is available. */);
2486 Vsystem_configuration_features
= build_string (EMACS_CONFIG_FEATURES
);
2488 DEFVAR_BOOL ("noninteractive", noninteractive1
,
2489 doc
: /* Non-nil means Emacs is running without interactive terminal. */);
2491 DEFVAR_LISP ("kill-emacs-hook", Vkill_emacs_hook
,
2492 doc
: /* Hook run when `kill-emacs' is called.
2493 Since `kill-emacs' may be invoked when the terminal is disconnected (or
2494 in other similar situations), functions placed on this hook should not
2495 expect to be able to interact with the user. To ask for confirmation,
2496 see `kill-emacs-query-functions' instead.
2498 Before Emacs 24.1, the hook was not run in batch mode, i.e., if
2499 `noninteractive' was non-nil. */);
2500 Vkill_emacs_hook
= Qnil
;
2502 DEFVAR_LISP ("path-separator", Vpath_separator
,
2503 doc
: /* String containing the character that separates directories in
2504 search paths, such as PATH and other similar environment variables. */);
2507 Vpath_separator
= make_string (&c
, 1);
2510 DEFVAR_LISP ("invocation-name", Vinvocation_name
,
2511 doc
: /* The program name that was used to run Emacs.
2512 Any directory names are omitted. */);
2514 DEFVAR_LISP ("invocation-directory", Vinvocation_directory
,
2515 doc
: /* The directory in which the Emacs executable was found, to run it.
2516 The value is nil if that directory's name is not known. */);
2518 DEFVAR_LISP ("installation-directory", Vinstallation_directory
,
2519 doc
: /* A directory within which to look for the `lib-src' and `etc' directories.
2520 In an installed Emacs, this is normally nil. It is non-nil if
2521 both `lib-src' (on MS-DOS, `info') and `etc' directories are found
2522 within the variable `invocation-directory' or its parent. For example,
2523 this is the case when running an uninstalled Emacs executable from its
2524 build directory. */);
2525 Vinstallation_directory
= Qnil
;
2527 DEFVAR_LISP ("system-messages-locale", Vsystem_messages_locale
,
2528 doc
: /* System locale for messages. */);
2529 Vsystem_messages_locale
= Qnil
;
2531 DEFVAR_LISP ("previous-system-messages-locale",
2532 Vprevious_system_messages_locale
,
2533 doc
: /* Most recently used system locale for messages. */);
2534 Vprevious_system_messages_locale
= Qnil
;
2536 DEFVAR_LISP ("system-time-locale", Vsystem_time_locale
,
2537 doc
: /* System locale for time. */);
2538 Vsystem_time_locale
= Qnil
;
2540 DEFVAR_LISP ("previous-system-time-locale", Vprevious_system_time_locale
,
2541 doc
: /* Most recently used system locale for time. */);
2542 Vprevious_system_time_locale
= Qnil
;
2544 DEFVAR_LISP ("before-init-time", Vbefore_init_time
,
2545 doc
: /* Value of `current-time' before Emacs begins initialization. */);
2546 Vbefore_init_time
= Qnil
;
2548 DEFVAR_LISP ("after-init-time", Vafter_init_time
,
2549 doc
: /* Value of `current-time' after loading the init files.
2550 This is nil during initialization. */);
2551 Vafter_init_time
= Qnil
;
2553 DEFVAR_BOOL ("inhibit-x-resources", inhibit_x_resources
,
2554 doc
: /* If non-nil, X resources, Windows Registry settings, and NS defaults are not used. */);
2555 inhibit_x_resources
= 0;
2557 DEFVAR_LISP ("emacs-copyright", Vemacs_copyright
,
2558 doc
: /* Short copyright string for this version of Emacs. */);
2559 Vemacs_copyright
= build_string (emacs_copyright
);
2561 DEFVAR_LISP ("emacs-version", Vemacs_version
,
2562 doc
: /* Version numbers of this version of Emacs. */);
2563 Vemacs_version
= build_string (emacs_version
);
2565 DEFVAR_LISP ("report-emacs-bug-address", Vreport_emacs_bug_address
,
2566 doc
: /* Address of mailing list for GNU Emacs bugs. */);
2567 Vreport_emacs_bug_address
= build_string (emacs_bugreport
);
2569 DEFVAR_LISP ("dynamic-library-alist", Vdynamic_library_alist
,
2570 doc
: /* Alist of dynamic libraries vs external files implementing them.
2571 Each element is a list (LIBRARY FILE...), where the car is a symbol
2572 representing a supported external library, and the rest are strings giving
2573 alternate filenames for that library.
2575 Emacs tries to load the library from the files in the order they appear on
2576 the list; if none is loaded, the running session of Emacs won't have access
2579 Note that image types `pbm' and `xbm' do not need entries in this variable
2580 because they do not depend on external libraries and are always available.
2582 Also note that this is not a generic facility for accessing external
2583 libraries; only those already known by Emacs will be loaded. */);
2584 Vdynamic_library_alist
= Qnil
;
2585 Fput (intern_c_string ("dynamic-library-alist"), Qrisky_local_variable
, Qt
);
2588 Vlibrary_cache
= Qnil
;
2589 staticpro (&Vlibrary_cache
);