1 /* Fully extensible Emacs, running on Unix, intended for GNU.
3 Copyright (C) 1985-1987, 1993-1995, 1997-1999, 2001-2014
4 Free Software Foundation, Inc.
6 This file is part of GNU Emacs.
8 GNU Emacs is free software: you can redistribute it and/or modify
9 it under the terms of the GNU General Public License as published by
10 the Free Software Foundation, either version 3 of the License, or
11 (at your option) any later version.
13 GNU Emacs is distributed in the hope that it will be useful,
14 but WITHOUT ANY WARRANTY; without even the implied warranty of
15 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
16 GNU General Public License for more details.
18 You should have received a copy of the GNU General Public License
19 along with GNU Emacs. If not, see <http://www.gnu.org/licenses/>. */
21 #define INLINE EXTERN_INLINE
27 #include <sys/types.h>
32 #include <close-stream.h>
39 #include <sys/socket.h>
45 #if defined WINDOWSNT || defined HAVE_NTGUI
46 #include "w32select.h"
48 #include "w32common.h"
55 #ifdef HAVE_WINDOW_SYSTEM
57 #endif /* HAVE_WINDOW_SYSTEM */
59 #ifdef NS_IMPL_GNUSTEP
60 /* At least under Debian, GSConfig is in a subdirectory. --Stef */
61 #include <GNUstepBase/GSConfig.h>
65 #include "intervals.h"
66 #include "character.h"
72 #include "blockinput.h"
73 #include "syssignal.h"
76 #include "termhooks.h"
81 #include "composite.h"
82 #include "dispextern.h"
84 #include "sysselect.h"
91 #if (defined PROFILING \
92 && (defined __FreeBSD__ || defined GNU_LINUX || defined __MINGW32__))
93 # include <sys/gmon.h>
94 extern void moncontrol (int mode
);
101 #ifdef HAVE_SETRLIMIT
102 #include <sys/time.h>
103 #include <sys/resource.h>
106 #ifdef HAVE_PERSONALITY_LINUX32
107 #include <sys/personality.h>
110 Lisp_Object symbol_module
;
111 Lisp_Object function_module
;
112 Lisp_Object plist_module
;
114 static const char emacs_version
[] = PACKAGE_VERSION
;
115 static const char emacs_copyright
[] = COPYRIGHT
;
116 static const char emacs_bugreport
[] = PACKAGE_BUGREPORT
;
118 /* Empty lisp strings. To avoid having to build any others. */
119 Lisp_Object empty_unibyte_string
, empty_multibyte_string
;
122 /* Cache for externally loaded libraries. */
123 Lisp_Object Vlibrary_cache
;
126 /* Set after Emacs has started up the first time.
127 Prevents reinitialization of the Lisp world and keymaps
128 on subsequent starts. */
131 /* Set to true if this instance of Emacs might dump. */
135 extern void unexec_init_emacs_zone (void);
138 #ifdef DOUG_LEA_MALLOC
139 /* Preserves a pointer to the memory allocated that copies that
140 static data inside glibc's malloc. */
141 static void *malloc_state_ptr
;
142 /* From glibc, a routine that returns a copy of the malloc internal state. */
143 extern void *malloc_get_state (void);
144 /* From glibc, a routine that overwrites the malloc internal state. */
145 extern int malloc_set_state (void *);
146 /* True if the MALLOC_CHECK_ environment variable was set while
147 dumping. Used to work around a bug in glibc's malloc. */
148 static bool malloc_using_checking
;
149 #elif defined HAVE_PTHREAD && !defined SYSTEM_MALLOC
150 extern void malloc_enable_thread (void);
153 Lisp_Object Qfile_name_handler_alist
;
155 Lisp_Object Qrisky_local_variable
;
157 Lisp_Object Qkill_emacs
;
158 static Lisp_Object Qkill_emacs_hook
;
160 /* If true, Emacs should not attempt to use a window-specific code,
161 but instead should use the virtual terminal under which it was started. */
162 bool inhibit_window_system
;
164 /* If true, a filter or a sentinel is running. Tested to save the match
165 data on the first attempt to change it inside asynchronous code. */
166 bool running_asynch_code
;
168 #if defined (HAVE_X_WINDOWS) || defined (HAVE_NS)
169 /* If true, -d was specified, meaning we're using some window system. */
173 #if defined (DOUG_LEA_MALLOC) || defined (GNU_LINUX)
174 /* The address where the heap starts (from the first sbrk (0) call). */
175 static void *my_heap_start
;
179 /* The gap between BSS end and heap start as far as we can tell. */
180 static uprintmax_t heap_bss_diff
;
183 /* To run as a daemon under Cocoa or Windows, we must do a fork+exec,
186 On Cocoa, CoreFoundation lib fails in forked process:
187 http://developer.apple.com/ReleaseNotes/
188 CoreFoundation/CoreFoundation.html)
190 On Windows, a Cygwin fork child cannot access the USER subsystem.
192 We mark being in the exec'd process by a daemon name argument of
193 form "--daemon=\nFD0,FD1\nNAME" where FD are the pipe file descriptors,
194 NAME is the original daemon name, if any. */
195 #if defined NS_IMPL_COCOA || (defined HAVE_NTGUI && defined CYGWIN)
196 # define DAEMON_MUST_EXEC
199 /* True means running Emacs without interactive terminal. */
202 /* True means remove site-lisp directories from load-path. */
205 /* Name for the server started by the daemon.*/
206 static char *daemon_name
;
208 /* Pipe used to send exit notification to the daemon parent at
212 /* Save argv and argc. */
216 static void sort_args (int argc
, char **argv
);
217 static void syms_of_emacs (void);
219 /* C99 needs each string to be at most 4095 characters, and the usage
220 strings below are split to not overflow this limit. */
221 static char const *const usage_message
[] =
224 Run Emacs, the extensible, customizable, self-documenting real-time\n\
225 display editor. The recommended way to start Emacs for normal editing\n\
226 is with no options at all.\n\
228 Run M-x info RET m emacs RET m emacs invocation RET inside Emacs to\n\
229 read the main documentation for these command-line arguments.\n\
231 Initialization options:\n\
235 --batch do not do interactive display; implies -q\n\
236 --chdir DIR change to directory DIR\n\
237 --daemon start a server in the background\n\
238 --debug-init enable Emacs Lisp debugger for init file\n\
239 --display, -d DISPLAY use X server DISPLAY\n\
242 --no-desktop do not load a saved desktop\n\
243 --no-init-file, -q load neither ~/.emacs nor default.el\n\
244 --no-shared-memory, -nl do not use shared memory\n\
245 --no-site-file do not load site-start.el\n\
246 --no-site-lisp, -nsl do not add site-lisp directories to load-path\n\
247 --no-splash do not display a splash screen on startup\n\
248 --no-window-system, -nw do not communicate with X, ignoring $DISPLAY\n\
251 --quick, -Q equivalent to:\n\
252 -q --no-site-file --no-site-lisp --no-splash\n\
253 --script FILE run FILE as an Emacs Lisp script\n\
254 --terminal, -t DEVICE use DEVICE for terminal I/O\n\
255 --user, -u USER load ~USER/.emacs instead of your own\n\
261 FILE visit FILE using find-file\n\
262 +LINE go to line LINE in next FILE\n\
263 +LINE:COLUMN go to line LINE, column COLUMN, in next FILE\n\
264 --directory, -L DIR prepend DIR to load-path (with :DIR, append DIR)\n\
265 --eval EXPR evaluate Emacs Lisp expression EXPR\n\
266 --execute EXPR evaluate Emacs Lisp expression EXPR\n\
269 --file FILE visit FILE using find-file\n\
270 --find-file FILE visit FILE using find-file\n\
271 --funcall, -f FUNC call Emacs Lisp function FUNC with no arguments\n\
272 --insert FILE insert contents of FILE into current buffer\n\
273 --kill exit without asking for confirmation\n\
274 --load, -l FILE load Emacs Lisp FILE using the load function\n\
275 --visit FILE visit FILE using find-file\n\
281 --background-color, -bg COLOR window background color\n\
282 --basic-display, -D disable many display features;\n\
283 used for debugging Emacs\n\
284 --border-color, -bd COLOR main border color\n\
285 --border-width, -bw WIDTH width of main border\n\
288 --color, --color=MODE override color mode for character terminals;\n\
289 MODE defaults to `auto', and\n\
290 can also be `never', `always',\n\
291 or a mode name like `ansi8'\n\
292 --cursor-color, -cr COLOR color of the Emacs cursor indicating point\n\
293 --font, -fn FONT default font; must be fixed-width\n\
294 --foreground-color, -fg COLOR window foreground color\n\
297 --fullheight, -fh make the first frame high as the screen\n\
298 --fullscreen, -fs make the first frame fullscreen\n\
299 --fullwidth, -fw make the first frame wide as the screen\n\
300 --maximized, -mm make the first frame maximized\n\
301 --geometry, -g GEOMETRY window geometry\n\
304 --no-bitmap-icon, -nbi do not use picture of gnu for Emacs icon\n\
305 --iconic start Emacs in iconified state\n\
306 --internal-border, -ib WIDTH width between text and main border\n\
307 --line-spacing, -lsp PIXELS additional space to put between lines\n\
308 --mouse-color, -ms COLOR mouse cursor color in Emacs window\n\
309 --name NAME title for initial Emacs frame\n\
312 --no-blinking-cursor, -nbc disable blinking cursor\n\
313 --reverse-video, -r, -rv switch foreground and background\n\
314 --title, -T TITLE title for initial Emacs frame\n\
315 --vertical-scroll-bars, -vb enable vertical scroll bars\n\
316 --xrm XRESOURCES set additional X resources\n\
317 --parent-id XID set parent window\n\
318 --help display this help and exit\n\
319 --version output version information and exit\n\
323 You can generally also specify long option names with a single -; for\n\
324 example, -batch as well as --batch. You can use any unambiguous\n\
325 abbreviation for a --option.\n\
327 Various environment variables and window system resources also affect\n\
328 the operation of Emacs. See the main documentation.\n\
330 Report bugs to " PACKAGE_BUGREPORT
". First, please see the Bugs\n\
331 section of the Emacs manual or the file BUGS.\n"
335 /* True if handling a fatal error already. */
336 bool fatal_error_in_progress
;
339 /* NS autrelease pool, for memory management. */
340 static void *ns_pool
;
345 setlocale (int cat
, char const *locale
)
352 /* Report a fatal error due to signal SIG, output a backtrace of at
353 most BACKTRACE_LIMIT lines, and exit. */
355 terminate_due_to_signal (int sig
, int backtrace_limit
)
357 signal (sig
, SIG_DFL
);
358 totally_unblock_input ();
360 /* If fatal error occurs in code below, avoid infinite recursion. */
361 if (! fatal_error_in_progress
)
363 fatal_error_in_progress
= 1;
365 if (sig
== SIGTERM
|| sig
== SIGHUP
|| sig
== SIGINT
)
366 Fkill_emacs (make_number (sig
));
368 shut_down_emacs (sig
, Qnil
);
369 emacs_backtrace (backtrace_limit
);
372 /* Signal the same code; this time it will really be fatal.
373 Since we're in a signal handler, the signal is blocked, so we
374 have to unblock it if we want to really receive it. */
378 sigemptyset (&unblocked
);
379 sigaddset (&unblocked
, sig
);
380 pthread_sigmask (SIG_UNBLOCK
, &unblocked
, 0);
386 /* This shouldn't be executed, but it prevents a warning. */
390 /* Code for dealing with Lisp access to the Unix command line. */
393 init_cmdargs (int argc
, char **argv
, int skip_args
, char *original_pwd
)
396 Lisp_Object name
, dir
, handler
;
398 Lisp_Object raw_name
;
404 /* Must use argv[0] converted to UTF-8, as it begets many standard
405 file and directory names. */
407 char argv0
[MAX_UTF8_PATH
];
409 if (filename_from_ansi (argv
[0], argv0
) == 0)
410 raw_name
= build_unibyte_string (argv0
);
412 raw_name
= build_unibyte_string (argv
[0]);
415 raw_name
= build_unibyte_string (argv
[0]);
418 /* Add /: to the front of the name
419 if it would otherwise be treated as magic. */
420 handler
= Ffind_file_name_handler (raw_name
, Qt
);
421 if (! NILP (handler
))
422 raw_name
= concat2 (build_string ("/:"), raw_name
);
424 Vinvocation_name
= Ffile_name_nondirectory (raw_name
);
425 Vinvocation_directory
= Ffile_name_directory (raw_name
);
427 /* If we got no directory in argv[0], search PATH to find where
428 Emacs actually came from. */
429 if (NILP (Vinvocation_directory
))
432 int yes
= openp (Vexec_path
, Vinvocation_name
,
433 Vexec_suffixes
, &found
, make_number (X_OK
), false);
436 /* Add /: to the front of the name
437 if it would otherwise be treated as magic. */
438 handler
= Ffind_file_name_handler (found
, Qt
);
439 if (! NILP (handler
))
440 found
= concat2 (build_string ("/:"), found
);
441 Vinvocation_directory
= Ffile_name_directory (found
);
445 if (!NILP (Vinvocation_directory
)
446 && NILP (Ffile_name_absolute_p (Vinvocation_directory
)))
447 /* Emacs was started with relative path, like ./emacs.
451 original_pwd
? build_unibyte_string (original_pwd
) : Qnil
;
453 Vinvocation_directory
= Fexpand_file_name (Vinvocation_directory
, odir
);
456 Vinstallation_directory
= Qnil
;
458 if (!NILP (Vinvocation_directory
))
460 dir
= Vinvocation_directory
;
462 /* If we are running from the build directory, set DIR to the
463 src subdirectory of the Emacs tree, like on Posix
465 if (SBYTES (dir
) > sizeof ("/i386/") - 1
466 && 0 == strcmp (SSDATA (dir
) + SBYTES (dir
) - sizeof ("/i386/") + 1,
468 dir
= Fexpand_file_name (build_string ("../.."), dir
);
469 #else /* !WINDOWSNT */
471 name
= Fexpand_file_name (Vinvocation_name
, dir
);
474 Lisp_Object tem
, lib_src_exists
;
475 Lisp_Object etc_exists
, info_exists
;
477 /* See if dir contains subdirs for use by Emacs.
478 Check for the ones that would exist in a build directory,
479 not including lisp and info. */
480 tem
= Fexpand_file_name (build_string ("lib-src"), dir
);
481 lib_src_exists
= Ffile_exists_p (tem
);
484 /* MSDOS installations frequently remove lib-src, but we still
485 must set installation-directory, or else info won't find
486 its files (it uses the value of installation-directory). */
487 tem
= Fexpand_file_name (build_string ("info"), dir
);
488 info_exists
= Ffile_exists_p (tem
);
493 if (!NILP (lib_src_exists
) || !NILP (info_exists
))
495 tem
= Fexpand_file_name (build_string ("etc"), dir
);
496 etc_exists
= Ffile_exists_p (tem
);
497 if (!NILP (etc_exists
))
499 Vinstallation_directory
500 = Ffile_name_as_directory (dir
);
505 /* See if dir's parent contains those subdirs. */
506 tem
= Fexpand_file_name (build_string ("../lib-src"), dir
);
507 lib_src_exists
= Ffile_exists_p (tem
);
511 /* See the MSDOS commentary above. */
512 tem
= Fexpand_file_name (build_string ("../info"), dir
);
513 info_exists
= Ffile_exists_p (tem
);
518 if (!NILP (lib_src_exists
) || !NILP (info_exists
))
520 tem
= Fexpand_file_name (build_string ("../etc"), dir
);
521 etc_exists
= Ffile_exists_p (tem
);
522 if (!NILP (etc_exists
))
524 tem
= Fexpand_file_name (build_string (".."), dir
);
525 Vinstallation_directory
526 = Ffile_name_as_directory (tem
);
531 /* If the Emacs executable is actually a link,
532 next try the dir that the link points into. */
533 tem
= Ffile_symlink_p (name
);
536 name
= Fexpand_file_name (tem
, dir
);
537 dir
= Ffile_name_directory (name
);
544 Vcommand_line_args
= Qnil
;
546 for (i
= argc
- 1; i
>= 0; i
--)
548 if (i
== 0 || i
> skip_args
)
549 /* For the moment, we keep arguments as is in unibyte strings.
550 They are decoded in the function command-line after we know
551 locale-coding-system. */
553 = Fcons (build_unibyte_string (argv
[i
]), Vcommand_line_args
);
559 DEFUN ("invocation-name", Finvocation_name
, Sinvocation_name
, 0, 0, 0,
560 doc
: /* Return the program name that was used to run Emacs.
561 Any directory names are omitted. */)
564 return Fcopy_sequence (Vinvocation_name
);
567 DEFUN ("invocation-directory", Finvocation_directory
, Sinvocation_directory
,
569 doc
: /* Return the directory name in which the Emacs executable was located. */)
572 return Fcopy_sequence (Vinvocation_directory
);
577 /* A valid but unlikely value for the TZ environment value.
578 It is OK (though a bit slower) if the user actually chooses this value. */
579 static char const dump_tz
[] = "UtC0";
582 /* Test whether the next argument in ARGV matches SSTR or a prefix of
583 LSTR (at least MINLEN characters). If so, then if VALPTR is non-null
584 (the argument is supposed to have a value) store in *VALPTR either
585 the next argument or the portion of this one after the equal sign.
586 ARGV is read starting at position *SKIPPTR; this index is advanced
587 by the number of arguments used.
589 Too bad we can't just use getopt for all of this, but we don't have
590 enough information to do it right. */
593 argmatch (char **argv
, int argc
, const char *sstr
, const char *lstr
,
594 int minlen
, char **valptr
, int *skipptr
)
600 /* Don't access argv[argc]; give up in advance. */
601 if (argc
<= *skipptr
+ 1)
604 arg
= argv
[*skipptr
+1];
607 if (strcmp (arg
, sstr
) == 0)
611 *valptr
= argv
[*skipptr
+2];
618 arglen
= (valptr
!= NULL
&& (p
= strchr (arg
, '=')) != NULL
619 ? p
- arg
: strlen (arg
));
620 if (lstr
== 0 || arglen
< minlen
|| strncmp (arg
, lstr
, arglen
) != 0)
622 else if (valptr
== NULL
)
633 else if (argv
[*skipptr
+2] != NULL
)
635 *valptr
= argv
[*skipptr
+2];
645 #ifdef DOUG_LEA_MALLOC
647 /* malloc can be invoked even before main (e.g. by the dynamic
648 linker), so the dumped malloc state must be restored as early as
649 possible using this special hook. */
652 malloc_initialize_hook (void)
656 if (!malloc_using_checking
)
657 /* Work around a bug in glibc's malloc. MALLOC_CHECK_ must be
658 ignored if the heap to be restored was constructed without
659 malloc checking. Can't use unsetenv, since that calls malloc. */
663 for (p
= environ
; p
&& *p
; p
++)
664 if (strncmp (*p
, "MALLOC_CHECK_=", 14) == 0)
673 malloc_set_state (malloc_state_ptr
);
674 free (malloc_state_ptr
);
678 if (my_heap_start
== 0)
679 my_heap_start
= sbrk (0);
680 malloc_using_checking
= getenv ("MALLOC_CHECK_") != NULL
;
684 void (*__malloc_initialize_hook
) (void) EXTERNALLY_VISIBLE
= malloc_initialize_hook
;
686 #endif /* DOUG_LEA_MALLOC */
688 /* Close standard output and standard error, reporting any write
689 errors as best we can. This is intended for use with atexit. */
691 close_output_streams (void)
693 if (close_stream (stdout
) != 0)
695 emacs_perror ("Write error to standard output");
696 _exit (EXIT_FAILURE
);
699 if (close_stream (stderr
) != 0)
700 _exit (EXIT_FAILURE
);
704 string_from_scheme (Lisp_Object scheme_string
)
707 char *c_string
= scm_to_utf8_stringn (scheme_string
, &nbytes
);
708 return make_string_from_bytes (c_string
,
709 scm_c_string_length (scheme_string
),
713 Lisp_Object xsymbol_fn
;
714 Lisp_Object symbol_function_fn
;
716 static int main2 (void *, int, char **);
719 main (int argc
, char **argv
)
721 /* Override Guile's libgc configuration. */
722 xputenv ("GC_ALL_INTERIOR_POINTERS=1");
723 scm_boot_guile (argc
, argv
, main2
, NULL
);
728 main2 (void *ignore
, int argc
, char **argv
)
730 bool do_initial_setlocale
;
733 #ifdef HAVE_SETRLIMIT
739 #ifdef DAEMON_MUST_EXEC
744 /* If we use --chdir, this records the original directory. */
745 char *original_pwd
= 0;
747 #ifdef G_SLICE_ALWAYS_MALLOC
748 /* This is used by the Cygwin build. It's not needed starting with
749 cygwin-1.7.24, but it doesn't do any harm. */
750 xputenv ("G_SLICE=always-malloc");
754 might_dump
= !initialized
;
760 extern char my_endbss
[];
761 extern char *my_endbss_static
;
763 if (my_heap_start
== 0)
764 my_heap_start
= sbrk (0);
766 heap_bss_diff
= (char *)my_heap_start
- max (my_endbss
, my_endbss_static
);
770 #if defined WINDOWSNT || defined HAVE_NTGUI
771 /* Set global variables used to detect Windows version. Do this as
772 early as possible. (unexw32.c calls this function as well, but
773 the additional call here is harmless.) */
774 cache_system_info ();
776 /* On Windows 9X, we have to load UNICOWS.DLL as early as possible,
777 to have non-stub implementations of APIs we need to convert file
778 names between UTF-8 and the system's ANSI codepage. */
779 maybe_load_unicows_dll ();
783 #ifdef RUN_TIME_REMAP
785 run_time_remap (argv
[0]);
788 /* If using unexmacosx.c (set by s/darwin.h), we must do this. */
791 unexec_init_emacs_zone ();
794 atexit (close_output_streams
);
796 sort_args (argc
, argv
);
798 while (argv
[argc
]) argc
++;
800 if (argmatch (argv
, argc
, "-version", "--version", 3, NULL
, &skip_args
))
802 const char *version
, *copyright
;
805 Lisp_Object tem
, tem2
;
806 tem
= Fsymbol_value (intern_c_string ("emacs-version"));
807 tem2
= Fsymbol_value (intern_c_string ("emacs-copyright"));
810 fprintf (stderr
, "Invalid value of `emacs-version'\n");
815 fprintf (stderr
, "Invalid value of `emacs-copyright'\n");
820 version
= SSDATA (tem
);
821 copyright
= SSDATA (tem2
);
826 version
= emacs_version
;
827 copyright
= emacs_copyright
;
829 printf ("GNU Emacs %s\n", version
);
830 printf ("%s\n", copyright
);
831 printf ("GNU Emacs comes with ABSOLUTELY NO WARRANTY.\n");
832 printf ("You may redistribute copies of Emacs\n");
833 printf ("under the terms of the GNU General Public License.\n");
834 printf ("For more information about these matters, ");
835 printf ("see the file named COPYING.\n");
839 if (argmatch (argv
, argc
, "-chdir", "--chdir", 4, &ch_to_dir
, &skip_args
))
842 /* argv[] array is kept in its original ANSI codepage encoding,
843 we need to convert to UTF-8, for chdir to work. */
844 char newdir
[MAX_UTF8_PATH
];
846 filename_from_ansi (ch_to_dir
, newdir
);
849 original_pwd
= get_current_dir_name ();
850 if (chdir (ch_to_dir
) != 0)
852 fprintf (stderr
, "%s: Can't chdir to %s: %s\n",
853 argv
[0], ch_to_dir
, strerror (errno
));
858 dumping
= !initialized
&& (strcmp (argv
[argc
- 1], "dump") == 0
859 || strcmp (argv
[argc
- 1], "bootstrap") == 0);
861 #ifdef HAVE_PERSONALITY_LINUX32
862 if (dumping
&& ! getenv ("EMACS_HEAP_EXEC"))
864 /* Set this so we only do this once. */
865 xputenv ("EMACS_HEAP_EXEC=true");
867 /* A flag to turn off address randomization which is introduced
868 in linux kernel shipped with fedora core 4 */
869 #define ADD_NO_RANDOMIZE 0x0040000
870 personality (PER_LINUX32
| ADD_NO_RANDOMIZE
);
871 #undef ADD_NO_RANDOMIZE
873 execvp (argv
[0], argv
);
875 /* If the exec fails, try to dump anyway. */
876 emacs_perror (argv
[0]);
878 #endif /* HAVE_PERSONALITY_LINUX32 */
880 #if defined (HAVE_SETRLIMIT) && defined (RLIMIT_STACK)
881 /* Extend the stack space available.
882 Don't do that if dumping, since some systems (e.g. DJGPP)
883 might define a smaller stack limit at that time. */
886 && (!noninteractive
|| initialized
)
888 && !getrlimit (RLIMIT_STACK
, &rlim
))
891 extern size_t re_max_failures
;
892 /* Approximate the amount regex.c needs per unit of re_max_failures. */
893 int ratio
= 20 * sizeof (char *);
894 /* Then add 33% to cover the size of the smaller stacks that regex.c
895 successively allocates and discards, on its way to the maximum. */
897 /* Add in some extra to cover
898 what we're likely to use for other reasons. */
899 newlim
= re_max_failures
* ratio
+ 200000;
901 /* NetBSD (at least NetBSD 1.2G and former) has a bug in its
902 stack allocation routine for new process that the allocation
903 fails if stack limit is not on page boundary. So, round up the
904 new limit to page boundary. */
905 newlim
= (newlim
+ getpagesize () - 1) / getpagesize () * getpagesize ();
907 if (newlim
> rlim
.rlim_max
)
909 newlim
= rlim
.rlim_max
;
910 /* Don't let regex.c overflow the stack we have. */
911 re_max_failures
= (newlim
- 200000) / ratio
;
913 if (rlim
.rlim_cur
< newlim
)
914 rlim
.rlim_cur
= newlim
;
916 setrlimit (RLIMIT_STACK
, &rlim
);
918 #endif /* HAVE_SETRLIMIT and RLIMIT_STACK */
922 #ifndef SYSTEM_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 */
932 #if defined (MSDOS) || defined (WINDOWSNT)
933 /* We do all file input/output as binary files. When we need to translate
934 newlines, we do that manually. */
936 #endif /* MSDOS || WINDOWSNT */
939 if (!isatty (fileno (stdin
)))
940 setmode (fileno (stdin
), O_BINARY
);
941 if (!isatty (fileno (stdout
)))
944 setmode (fileno (stdout
), O_BINARY
);
948 /* Skip initial setlocale if LC_ALL is "C", as it's not needed in that case.
949 The build procedure uses this while dumping, to ensure that the
950 dumped Emacs does not have its system locale tables initialized,
951 as that might cause screwups when the dumped Emacs starts up. */
953 char *lc_all
= getenv ("LC_ALL");
954 do_initial_setlocale
= ! lc_all
|| strcmp (lc_all
, "C");
957 /* Set locale now, so that initial error messages are localized properly.
958 fixup_locale must wait until later, since it builds strings. */
959 if (do_initial_setlocale
)
960 setlocale (LC_ALL
, "");
962 inhibit_window_system
= 0;
964 /* Handle the -t switch, which specifies filename to use as terminal. */
968 if (argmatch (argv
, argc
, "-t", "--terminal", 4, &term
, &skip_args
))
973 result
= emacs_open (term
, O_RDWR
, 0);
974 if (result
< 0 || fcntl (0, F_DUPFD_CLOEXEC
, 1) < 0)
976 char *errstring
= strerror (errno
);
977 fprintf (stderr
, "%s: %s: %s\n", argv
[0], term
, errstring
);
982 fprintf (stderr
, "%s: %s: not a tty\n", argv
[0], term
);
985 fprintf (stderr
, "Using %s\n", term
);
986 #ifdef HAVE_WINDOW_SYSTEM
987 inhibit_window_system
= 1; /* -t => -nw */
994 /* Command line option --no-windows is deprecated and thus not mentioned
995 in the manual and usage information. */
996 if (argmatch (argv
, argc
, "-nw", "--no-window-system", 6, NULL
, &skip_args
)
997 || argmatch (argv
, argc
, "-nw", "--no-windows", 6, NULL
, &skip_args
))
998 inhibit_window_system
= 1;
1000 /* Handle the -batch switch, which means don't do interactive display. */
1002 if (argmatch (argv
, argc
, "-batch", "--batch", 5, NULL
, &skip_args
))
1005 Vundo_outer_limit
= Qnil
;
1007 if (argmatch (argv
, argc
, "-script", "--script", 3, &junk
, &skip_args
))
1009 noninteractive
= 1; /* Set batch mode. */
1010 /* Convert --script to -scriptload, un-skip it, and sort again
1011 so that it will be handled in proper sequence. */
1012 /* FIXME broken for --script=FILE - is that supposed to work? */
1013 argv
[skip_args
- 1] = (char *) "-scriptload";
1015 sort_args (argc
, argv
);
1018 /* Handle the --help option, which gives a usage message. */
1019 if (argmatch (argv
, argc
, "-help", "--help", 3, NULL
, &skip_args
))
1022 printf ("Usage: %s [OPTION-OR-FILENAME]...\n", argv
[0]);
1023 for (i
= 0; i
< ARRAYELTS (usage_message
); i
++)
1024 fputs (usage_message
[i
], stdout
);
1028 /* Make sure IS_DAEMON starts up as false. */
1031 if (argmatch (argv
, argc
, "-daemon", "--daemon", 5, NULL
, &skip_args
)
1032 || argmatch (argv
, argc
, "-daemon", "--daemon", 5, &dname_arg
, &skip_args
))
1037 /* Start as a daemon: fork a new child process which will run the
1038 rest of the initialization code, then exit.
1040 Detaching a daemon requires the following steps:
1044 - close the tty file-descriptors
1046 We only want to do the last 2 steps once the daemon is ready to
1047 serve requests, i.e. after loading .emacs (initialization).
1048 OTOH initialization may start subprocesses (e.g. ispell) and these
1049 should be run from the proper process (the one that will end up
1050 running as daemon) and with the proper "session id" in order for
1051 them to keep working after detaching, so fork and setsid need to be
1052 performed before initialization.
1054 We want to avoid exiting before the server socket is ready, so
1055 use a pipe for synchronization. The parent waits for the child
1056 to close its end of the pipe (using `daemon-initialized')
1058 if (emacs_pipe (daemon_pipe
) != 0)
1060 fprintf (stderr
, "Cannot pipe!\n");
1064 #ifndef DAEMON_MUST_EXEC
1066 fprintf (stderr
, "\nWarning: due to a long standing Gtk+ bug\nhttp://bugzilla.gnome.org/show_bug.cgi?id=85715\n\
1067 Emacs might crash when run in daemon mode and the X11 connection is unexpectedly lost.\n\
1068 Using an Emacs configured with --with-x-toolkit=lucid does not have this problem.\n");
1069 #endif /* USE_GTK */
1071 #else /* DAEMON_MUST_EXEC */
1072 if (!dname_arg
|| !strchr (dname_arg
, '\n'))
1073 f
= fork (); /* in orig */
1075 f
= 0; /* in exec'd */
1076 #endif /* !DAEMON_MUST_EXEC */
1082 /* Close unused writing end of the pipe. */
1083 emacs_close (daemon_pipe
[1]);
1085 /* Just wait for the child to close its end of the pipe. */
1088 retval
= read (daemon_pipe
[0], &buf
, 1);
1090 while (retval
== -1 && errno
== EINTR
);
1094 fprintf (stderr
, "Error reading status from child\n");
1097 else if (retval
== 0)
1099 fprintf (stderr
, "Error: server did not start correctly\n");
1103 emacs_close (daemon_pipe
[0]);
1108 emacs_perror ("fork");
1109 exit (EXIT_CANCELED
);
1112 #ifdef DAEMON_MUST_EXEC
1114 /* In orig process, forked as child, OR in exec'd. */
1115 if (!dname_arg
|| !strchr (dname_arg
, '\n'))
1116 { /* In orig, child: now exec w/special daemon name. */
1119 snprintf (fdStr
, sizeof fdStr
,
1120 "--daemon=\n%d,%d\n%s", daemon_pipe
[0],
1121 daemon_pipe
[1], dname_arg
? dname_arg
: "");
1123 if (! (0 <= fdStrlen
&& fdStrlen
< sizeof fdStr
))
1125 fprintf (stderr
, "daemon: child name too long\n");
1126 exit (EXIT_CANNOT_INVOKE
);
1129 argv
[skip_args
] = fdStr
;
1131 fcntl (daemon_pipe
[0], F_SETFD
, 0);
1132 fcntl (daemon_pipe
[1], F_SETFD
, 0);
1133 execvp (argv
[0], argv
);
1134 emacs_perror (argv
[0]);
1135 exit (errno
== ENOENT
? EXIT_ENOENT
: EXIT_CANNOT_INVOKE
);
1138 /* In exec'd: parse special dname into pipe and name info. */
1139 if (!dname_arg
|| !strchr (dname_arg
, '\n')
1140 || strlen (dname_arg
) < 1 || strlen (dname_arg
) > 70)
1142 fprintf (stderr
, "emacs daemon: daemon name absent or too long\n");
1143 exit (EXIT_CANNOT_INVOKE
);
1145 dname_arg2
[0] = '\0';
1146 sscanf (dname_arg
, "\n%d,%d\n%s", &(daemon_pipe
[0]), &(daemon_pipe
[1]),
1148 dname_arg
= *dname_arg2
? dname_arg2
: NULL
;
1149 fcntl (daemon_pipe
[1], F_SETFD
, FD_CLOEXEC
);
1151 #endif /* DAEMON_MUST_EXEC */
1154 daemon_name
= xstrdup (dname_arg
);
1155 /* Close unused reading end of the pipe. */
1156 emacs_close (daemon_pipe
[0]);
1160 fprintf (stderr
, "This platform does not support the -daemon flag.\n");
1165 #if defined HAVE_PTHREAD && !defined SYSTEM_MALLOC && !defined DOUG_LEA_MALLOC
1166 # ifndef CANNOT_DUMP
1167 /* Do not make gmalloc thread-safe when creating bootstrap-emacs, as
1168 that causes an infinite recursive loop with FreeBSD. But do make
1169 it thread-safe when creating emacs, otherwise bootstrap-emacs
1170 fails on Cygwin. See Bug#14569. */
1171 if (!noninteractive
|| initialized
)
1173 malloc_enable_thread ();
1176 init_signals (dumping
);
1178 noninteractive1
= noninteractive
;
1180 /* Perform basic initializations (not merely interning symbols). */
1184 /* scm_c_module_define (scm_c_resolve_module ("language elisp lexer"), */
1185 /* "make-lisp-string", */
1186 /* scm_c_make_gsubr ("make-lisp-string", 1, 0, 0, */
1187 /* string_from_scheme)); */
1188 (void *) scm_c_resolve_module ("language elisp spec");
1189 symbol_module
= scm_c_resolve_module ("elisp-symbols");
1190 function_module
= scm_c_resolve_module ("elisp-functions");
1191 plist_module
= scm_c_resolve_module ("elisp-plists");
1192 scm_set_current_module (scm_c_resolve_module ("guile-user"));
1196 scm_c_module_define (scm_c_resolve_module ("language elisp runtime"),
1198 scm_c_make_gsubr ("make-lisp-string", 1, 0, 0,
1199 string_from_scheme
));
1200 scm_c_module_define (scm_c_resolve_module ("language elisp runtime"),
1202 scm_c_make_gsubr ("stringp", 1, 0, 0, Fstringp
));
1204 xsymbol_fn
= scm_c_public_ref ("language elisp runtime", "symbol-desc");
1205 symbol_function_fn
= scm_c_public_ref ("language elisp runtime", "symbol-function");
1211 init_charset_once ();
1212 init_coding_once ();
1213 init_syntax_once (); /* Create standard syntax table. */
1214 init_category_once (); /* Create standard category table. */
1215 init_casetab_once (); /* Must be done before init_buffer_once. */
1216 init_buffer_once (); /* Create buffer table and some buffers. */
1217 init_minibuf_once (); /* Create list of minibuffers. */
1218 /* Must precede init_window_once. */
1220 /* Called before syms_of_fileio, because it sets up
1221 Qerror_condition. Called before other symbol-initialization
1222 functions because it sets up symbols used by defsubr. */
1225 scm_call_7 (scm_c_public_ref ("language elisp runtime", "emacs!"),
1226 SYMBOL_FUNCTION (intern ("symbol-value")),
1227 SYMBOL_FUNCTION (intern ("set")),
1228 SYMBOL_FUNCTION (intern ("boundp")),
1229 SYMBOL_FUNCTION (intern ("default-value")),
1230 SYMBOL_FUNCTION (intern ("set-default")),
1231 SYMBOL_FUNCTION (intern ("default-boundp")),
1232 SYMBOL_FUNCTION (intern ("bind-symbol")));
1234 /* Call syms_of_xfaces before init_window_once because that
1235 function creates Vterminal_frame. Termcap frames now use
1236 faces, and the face implementation uses some symbols as
1239 /* XXX syms_of_keyboard uses some symbols in keymap.c. It would
1240 be better to arrange things not to have this dependency. */
1242 /* Call syms_of_keyboard before init_window_once because
1243 keyboard sets up symbols that include some face names that
1244 the X support will want to use. This can happen when
1245 CANNOT_DUMP is defined. */
1246 syms_of_keyboard ();
1248 syms_of_fns (); /* Before syms_of_charset which uses hashtables. */
1250 /* Before syms_of_coding to initialize Vgc_cons_threshold. */
1252 /* May call Ffuncall and so GC, thus the latter should be initialized. */
1254 /* Before syms_of_coding because it initializes Qcharsetp. */
1256 /* Before init_window_once, because it sets up the
1257 Vcoding_system_hash_table. */
1258 syms_of_coding (); /* This should be after syms_of_fileio. */
1260 init_window_once (); /* Init the window system. */
1261 #ifdef HAVE_WINDOW_SYSTEM
1262 init_fringe_once (); /* Swap bitmaps if necessary. */
1263 #endif /* HAVE_WINDOW_SYSTEM */
1268 if (do_initial_setlocale
)
1271 Vsystem_messages_locale
= Vprevious_system_messages_locale
;
1272 Vsystem_time_locale
= Vprevious_system_time_locale
;
1277 running_asynch_code
= 0;
1281 = argmatch (argv
, argc
, "-nl", "--no-loadup", 6, NULL
, &skip_args
);
1284 = argmatch (argv
, argc
, "-nsl", "--no-site-lisp", 11, NULL
, &skip_args
);
1287 ns_pool
= ns_alloc_autorelease_pool ();
1288 #ifdef NS_IMPL_GNUSTEP
1289 /* GNUstep stupidly resets our locale settings after we made them. */
1293 if (!noninteractive
)
1295 #ifdef NS_IMPL_COCOA
1296 /* Started from GUI? */
1297 /* FIXME: Do the right thing if getenv returns NULL, or if
1299 if (! inhibit_window_system
&& ! isatty (0))
1300 chdir (getenv ("HOME"));
1301 if (skip_args
< argc
)
1303 if (!strncmp (argv
[skip_args
], "-psn", 4))
1306 chdir (getenv ("HOME"));
1308 else if (skip_args
+1 < argc
&& !strncmp (argv
[skip_args
+1], "-psn", 4))
1311 chdir (getenv ("HOME"));
1316 #endif /* HAVE_NS */
1318 #ifdef HAVE_X_WINDOWS
1319 /* Stupid kludge to catch command-line display spec. We can't
1320 handle this argument entirely in window system dependent code
1321 because we don't even know which window system dependent code
1322 to run until we've recognized this argument. */
1324 char *displayname
= 0;
1325 int count_before
= skip_args
;
1327 /* Skip any number of -d options, but only use the last one. */
1330 int count_before_this
= skip_args
;
1332 if (argmatch (argv
, argc
, "-d", "--display", 3, &displayname
, &skip_args
))
1334 else if (argmatch (argv
, argc
, "-display", 0, 3, &displayname
, &skip_args
))
1339 count_before
= count_before_this
;
1342 /* If we have the form --display=NAME,
1343 convert it into -d name.
1344 This requires inserting a new element into argv. */
1345 if (displayname
&& count_before
< skip_args
)
1347 if (skip_args
== count_before
+ 1)
1349 memmove (argv
+ count_before
+ 3, argv
+ count_before
+ 2,
1350 (argc
- (count_before
+ 2)) * sizeof *argv
);
1351 argv
[count_before
+ 2] = displayname
;
1354 argv
[count_before
+ 1] = (char *) "-d";
1359 if (argmatch (argv
, argc
, "-Q", "--quick", 3, NULL
, &skip_args
)
1360 || argmatch (argv
, argc
, "-quick", 0, 2, NULL
, &skip_args
))
1364 /* Don't actually discard this arg. */
1365 skip_args
= count_before
;
1367 #else /* !HAVE_X_WINDOWS */
1370 int count_before
= skip_args
;
1372 if (argmatch (argv
, argc
, "-Q", "--quick", 3, NULL
, &skip_args
)
1373 || argmatch (argv
, argc
, "-quick", 0, 2, NULL
, &skip_args
))
1376 skip_args
= count_before
;
1380 /* argmatch must not be used after here,
1381 except when building temacs
1382 because the -d argument has not been skipped in skip_args. */
1385 /* Call early 'cause init_environment needs it. */
1387 /* Set defaults for several environment variables. */
1389 init_environment (argc
, argv
, skip_args
);
1394 #ifdef HAVE_GFILENOTIFY
1395 globals_of_gfilenotify ();
1400 #ifdef HAVE_W32NOTIFY
1401 globals_of_w32notify ();
1403 /* Initialize environment from registry settings. */
1404 init_environment (argv
);
1405 init_ntproc (dumping
); /* must precede init_editfns. */
1408 /* Initialize and GC-protect Vinitial_environment and
1409 Vprocess_environment before set_initial_environment fills them
1412 syms_of_callproc ();
1413 /* egetenv is a pretty low-level facility, which may get called in
1414 many circumstances; it seems flimsy to put off initializing it
1415 until calling init_callproc. Do not do it when dumping. */
1417 set_initial_environment ();
1419 /* AIX crashes are reported in system versions 3.2.3 and 3.2.4
1420 if this is not done. Do it after set_global_environment so that we
1421 don't pollute Vglobal_environment. */
1422 /* Setting LANG here will defeat the startup locale processing... */
1427 /* Init buffer storage and default directory of main buffer. */
1428 init_buffer (initialized
);
1430 init_callproc_1 (); /* Must precede init_cmdargs and init_sys_modes. */
1432 /* Must precede init_lread. */
1433 init_cmdargs (argc
, argv
, skip_args
, original_pwd
);
1437 /* Erase any pre-dump messages in the message log, to avoid confusion. */
1438 Lisp_Object old_log_max
;
1439 old_log_max
= Vmessage_log_max
;
1440 XSETFASTINT (Vmessage_log_max
, 0);
1441 message_dolog ("", 0, 1, 0);
1442 Vmessage_log_max
= old_log_max
;
1445 init_callproc (); /* Must follow init_cmdargs but not init_sys_modes. */
1449 /* Check to see if Emacs has been installed correctly. */
1450 check_windows_init_file ();
1453 /* Intern the names of all standard functions and variables;
1454 define standard keys. */
1458 /* The basic levels of Lisp must come first. Note that
1459 syms_of_data and some others have already been called. */
1464 syms_of_floatfns ();
1468 syms_of_casefiddle ();
1470 syms_of_category ();
1472 syms_of_character ();
1479 syms_of_filelock ();
1482 /* syms_of_keymap (); */
1490 syms_of_terminal ();
1496 syms_of_textprop ();
1497 syms_of_composite ();
1500 #endif /* WINDOWSNT */
1507 #ifdef HAVE_WINDOW_SYSTEM
1510 #endif /* HAVE_WINDOW_SYSTEM */
1511 #ifdef HAVE_X_WINDOWS
1516 syms_of_xsettings ();
1523 #endif /* HAVE_X_WINDOWS */
1530 syms_of_decompress ();
1540 #endif /* HAVE_NTGUI */
1542 #if defined WINDOWSNT || defined HAVE_NTGUI
1543 syms_of_w32select ();
1550 syms_of_win16select ();
1557 syms_of_nsselect ();
1559 #endif /* HAVE_NS */
1565 #ifdef HAVE_GFILENOTIFY
1566 syms_of_gfilenotify ();
1567 #endif /* HAVE_GFILENOTIFY */
1571 #endif /* HAVE_INOTIFY */
1574 syms_of_dbusbind ();
1575 #endif /* HAVE_DBUS */
1579 #ifdef HAVE_W32NOTIFY
1580 syms_of_w32notify ();
1581 #endif /* HAVE_W32NOTIFY */
1582 #endif /* WINDOWSNT */
1584 keys_of_casefiddle ();
1587 keys_of_keyboard ();
1593 /* Initialization that must be done even if the global variable
1594 initialized is non zero. */
1596 globals_of_w32font ();
1597 globals_of_w32fns ();
1598 globals_of_w32menu ();
1599 #endif /* HAVE_NTGUI */
1601 #if defined WINDOWSNT || defined HAVE_NTGUI
1602 globals_of_w32select ();
1608 init_editfns (); /* init_process_emacs uses Voperating_system_release. */
1609 init_process_emacs (); /* init_display uses add_keyboard_wait_descriptor. */
1610 init_keyboard (); /* This too must precede init_sys_modes. */
1611 if (!noninteractive
)
1612 init_display (); /* Determine terminal type. Calls init_sys_modes. */
1615 init_crit (); /* w32notify.c needs this in batch mode. */
1616 #endif /* HAVE_W32NOTIFY */
1618 #ifdef HAVE_WINDOW_SYSTEM
1620 #endif /* HAVE_WINDOW_SYSTEM */
1628 /* Handle -l loadup, args passed by Makefile. */
1629 if (argmatch (argv
, argc
, "-l", "--load", 3, &file
, &skip_args
))
1632 char file_utf8
[MAX_UTF8_PATH
];
1634 if (filename_from_ansi (file
, file_utf8
) == 0)
1637 Vtop_level
= list2 (intern_c_string ("load"),
1638 build_unibyte_string (file
));
1640 /* Unless next switch is -nl, load "loadup.el" first thing. */
1642 Vtop_level
= list2 (intern_c_string ("load"),
1643 build_string ("loadup.el"));
1650 /* If the execution TZ happens to be the same as the dump TZ,
1651 change it to some other value and then change it back,
1652 to force the underlying implementation to reload the TZ info.
1653 This is needed on implementations that load TZ info from files,
1654 since the TZ file contents may differ between dump and execution. */
1655 char *tz
= getenv ("TZ");
1656 if (tz
&& !strcmp (tz
, dump_tz
))
1666 /* Set up for profiling. This is known to work on FreeBSD,
1667 GNU/Linux and MinGW. It might work on some other systems too.
1668 Give it a try and tell us if it works on your system. To compile
1669 for profiling, use the configure option --enable-profiling. */
1670 #if defined (__FreeBSD__) || defined (GNU_LINUX) || defined (__MINGW32__)
1675 extern unsigned char etext
asm ("etext");
1681 monstartup ((uintptr_t) __executable_start
, (uintptr_t) &etext
);
1690 #ifdef LOCALTIME_CACHE
1691 /* Some versions of localtime have a bug. They cache the value of the time
1692 zone rather than looking it up every time. Since localtime() is
1693 called to bolt the undumping time into the undumped emacs, this
1694 results in localtime ignoring the TZ environment variable.
1695 This flushes the new TZ value into localtime. */
1697 #endif /* defined (LOCALTIME_CACHE) */
1699 /* Enter editor command loop. This never returns. */
1705 /* Sort the args so we can find the most important ones
1706 at the beginning of argv. */
1708 /* First, here's a table of all the standard options. */
1710 struct standard_args
1713 const char *longname
;
1718 static const struct standard_args standard_args
[] =
1720 { "-version", "--version", 150, 0 },
1721 { "-chdir", "--chdir", 130, 1 },
1722 { "-t", "--terminal", 120, 1 },
1723 { "-nw", "--no-window-system", 110, 0 },
1724 { "-nw", "--no-windows", 110, 0 },
1725 { "-batch", "--batch", 100, 0 },
1726 { "-script", "--script", 100, 1 },
1727 { "-daemon", "--daemon", 99, 0 },
1728 { "-help", "--help", 90, 0 },
1729 { "-nl", "--no-loadup", 70, 0 },
1730 { "-nsl", "--no-site-lisp", 65, 0 },
1731 /* -d must come last before the options handled in startup.el. */
1732 { "-d", "--display", 60, 1 },
1733 { "-display", 0, 60, 1 },
1734 /* Now for the options handled in `command-line' (startup.el). */
1735 /* (Note that to imply -nsl, -Q is partially handled here.) */
1736 { "-Q", "--quick", 55, 0 },
1737 { "-quick", 0, 55, 0 },
1738 { "-q", "--no-init-file", 50, 0 },
1739 { "-no-init-file", 0, 50, 0 },
1740 { "-no-site-file", "--no-site-file", 40, 0 },
1741 { "-u", "--user", 30, 1 },
1742 { "-user", 0, 30, 1 },
1743 { "-debug-init", "--debug-init", 20, 0 },
1744 { "-iconic", "--iconic", 15, 0 },
1745 { "-D", "--basic-display", 12, 0},
1746 { "-basic-display", 0, 12, 0},
1747 { "-nbc", "--no-blinking-cursor", 12, 0 },
1748 /* Now for the options handled in `command-line-1' (startup.el). */
1749 { "-nbi", "--no-bitmap-icon", 10, 0 },
1750 { "-bg", "--background-color", 10, 1 },
1751 { "-background", 0, 10, 1 },
1752 { "-fg", "--foreground-color", 10, 1 },
1753 { "-foreground", 0, 10, 1 },
1754 { "-bd", "--border-color", 10, 1 },
1755 { "-bw", "--border-width", 10, 1 },
1756 { "-ib", "--internal-border", 10, 1 },
1757 { "-ms", "--mouse-color", 10, 1 },
1758 { "-cr", "--cursor-color", 10, 1 },
1759 { "-fn", "--font", 10, 1 },
1760 { "-font", 0, 10, 1 },
1761 { "-fs", "--fullscreen", 10, 0 },
1762 { "-fw", "--fullwidth", 10, 0 },
1763 { "-fh", "--fullheight", 10, 0 },
1764 { "-mm", "--maximized", 10, 0 },
1765 { "-g", "--geometry", 10, 1 },
1766 { "-geometry", 0, 10, 1 },
1767 { "-T", "--title", 10, 1 },
1768 { "-title", 0, 10, 1 },
1769 { "-name", "--name", 10, 1 },
1770 { "-xrm", "--xrm", 10, 1 },
1771 { "-parent-id", "--parent-id", 10, 1 },
1772 { "-r", "--reverse-video", 5, 0 },
1774 { "-reverse", 0, 5, 0 },
1775 { "-hb", "--horizontal-scroll-bars", 5, 0 },
1776 { "-vb", "--vertical-scroll-bars", 5, 0 },
1777 { "-color", "--color", 5, 0},
1778 { "-no-splash", "--no-splash", 3, 0 },
1779 { "-no-desktop", "--no-desktop", 3, 0 },
1781 { "-NSAutoLaunch", 0, 5, 1 },
1782 { "-NXAutoLaunch", 0, 5, 1 },
1783 { "-_NSMachLaunch", 0, 85, 1 },
1784 { "-MachLaunch", 0, 85, 1 },
1785 { "-macosx", 0, 85, 0 },
1786 { "-NSHost", 0, 85, 1 },
1788 /* These have the same priority as ordinary file name args,
1789 so they are not reordered with respect to those. */
1790 { "-L", "--directory", 0, 1 },
1791 { "-directory", 0, 0, 1 },
1792 { "-l", "--load", 0, 1 },
1793 { "-load", 0, 0, 1 },
1794 /* This has no longname, because using --scriptload confuses sort_args,
1795 because then the --script long option seems to match twice; ie
1796 you can't have a long option which is a prefix of another long
1797 option. In any case, this is entirely an internal option. */
1798 { "-scriptload", NULL
, 0, 1 },
1799 { "-f", "--funcall", 0, 1 },
1800 { "-funcall", 0, 0, 1 },
1801 { "-eval", "--eval", 0, 1 },
1802 { "-execute", "--execute", 0, 1 },
1803 { "-find-file", "--find-file", 0, 1 },
1804 { "-visit", "--visit", 0, 1 },
1805 { "-file", "--file", 0, 1 },
1806 { "-insert", "--insert", 0, 1 },
1808 { "-NXOpen", 0, 0, 1 },
1809 { "-NXOpenTemp", 0, 0, 1 },
1810 { "-NSOpen", 0, 0, 1 },
1811 { "-NSOpenTemp", 0, 0, 1 },
1812 { "-GSFilePath", 0, 0, 1 },
1814 /* This should be processed after ordinary file name args and the like. */
1815 { "-kill", "--kill", -10, 0 },
1818 /* Reorder the elements of ARGV (assumed to have ARGC elements)
1819 so that the highest priority ones come first.
1820 Do not change the order of elements of equal priority.
1821 If an option takes an argument, keep it and its argument together.
1823 If an option that takes no argument appears more
1824 than once, eliminate all but one copy of it. */
1827 sort_args (int argc
, char **argv
)
1829 char **new = xmalloc (argc
* sizeof *new);
1830 /* For each element of argv,
1831 the corresponding element of options is:
1832 0 for an option that takes no arguments,
1833 1 for an option that takes one argument, etc.
1834 -1 for an ordinary non-option argument. */
1835 int *options
= xnmalloc_atomic (argc
, sizeof *options
);
1836 int *priority
= xnmalloc_atomic (argc
, sizeof *priority
);
1838 int incoming_used
= 1;
1842 /* Categorize all the options,
1843 and figure out which argv elts are option arguments. */
1844 for (from
= 1; from
< argc
; from
++)
1848 if (argv
[from
][0] == '-')
1852 /* If we have found "--", don't consider
1853 any more arguments as options. */
1854 if (argv
[from
][1] == '-' && argv
[from
][2] == 0)
1856 /* Leave the "--", and everything following it, at the end. */
1857 for (; from
< argc
; from
++)
1859 priority
[from
] = -100;
1865 /* Look for a match with a known old-fashioned option. */
1866 for (i
= 0; i
< ARRAYELTS (standard_args
); i
++)
1867 if (!strcmp (argv
[from
], standard_args
[i
].name
))
1869 options
[from
] = standard_args
[i
].nargs
;
1870 priority
[from
] = standard_args
[i
].priority
;
1871 if (from
+ standard_args
[i
].nargs
>= argc
)
1872 fatal ("Option `%s' requires an argument\n", argv
[from
]);
1873 from
+= standard_args
[i
].nargs
;
1877 /* Look for a match with a known long option.
1878 MATCH is -1 if no match so far, -2 if two or more matches so far,
1879 >= 0 (the table index of the match) if just one match so far. */
1880 if (argv
[from
][1] == '-')
1882 char const *equals
= strchr (argv
[from
], '=');
1884 equals
? equals
- argv
[from
] : strlen (argv
[from
]);
1888 for (i
= 0; i
< ARRAYELTS (standard_args
); i
++)
1889 if (standard_args
[i
].longname
1890 && !strncmp (argv
[from
], standard_args
[i
].longname
,
1899 /* If we found exactly one match, use that. */
1902 options
[from
] = standard_args
[match
].nargs
;
1903 priority
[from
] = standard_args
[match
].priority
;
1904 /* If --OPTION=VALUE syntax is used,
1905 this option uses just one argv element. */
1908 if (from
+ options
[from
] >= argc
)
1909 fatal ("Option `%s' requires an argument\n", argv
[from
]);
1910 from
+= options
[from
];
1912 /* FIXME When match < 0, shouldn't there be some error,
1913 or at least indication to the user that there was a
1920 /* Copy the arguments, in order of decreasing priority, to NEW. */
1922 while (incoming_used
< argc
)
1925 int best_priority
= -9999;
1927 /* Find the highest priority remaining option.
1928 If several have equal priority, take the first of them. */
1929 for (from
= 1; from
< argc
; from
++)
1931 if (argv
[from
] != 0 && priority
[from
] > best_priority
)
1933 best_priority
= priority
[from
];
1936 /* Skip option arguments--they are tied to the options. */
1937 if (options
[from
] > 0)
1938 from
+= options
[from
];
1944 /* Copy the highest priority remaining option, with its args, to NEW.
1945 Unless it is a duplicate of the previous one. */
1946 if (! (options
[best
] == 0
1947 && ! strcmp (new[to
- 1], argv
[best
])))
1949 new[to
++] = argv
[best
];
1950 for (i
= 0; i
< options
[best
]; i
++)
1951 new[to
++] = argv
[best
+ i
+ 1];
1954 incoming_used
+= 1 + (options
[best
] > 0 ? options
[best
] : 0);
1956 /* Clear out this option in ARGV. */
1958 for (i
= 0; i
< options
[best
]; i
++)
1959 argv
[best
+ i
+ 1] = 0;
1962 /* If duplicate options were deleted, fill up extra space with null ptrs. */
1966 memcpy (argv
, new, sizeof (char *) * argc
);
1973 DEFUN ("kill-emacs", Fkill_emacs
, Skill_emacs
, 0, 1, "P",
1974 doc
: /* Exit the Emacs job and kill it.
1975 If ARG is an integer, return ARG as the exit program code.
1976 If ARG is a string, stuff it as keyboard input.
1978 This function is called upon receipt of the signals SIGTERM
1979 or SIGHUP, and upon SIGINT in batch mode.
1981 The value of `kill-emacs-hook', if not void,
1982 is a list of functions (of no args),
1983 all of which are called before Emacs is actually killed. */)
1986 struct gcpro gcpro1
;
1994 /* Fsignal calls emacs_abort () if it sees that waiting_for_input is
1996 waiting_for_input
= 0;
1997 Frun_hooks (1, &Qkill_emacs_hook
);
2000 #ifdef HAVE_X_WINDOWS
2001 /* Transfer any clipboards we own to the clipboard manager. */
2002 x_clipboard_manager_save_all ();
2005 shut_down_emacs (0, STRINGP (arg
) ? arg
: Qnil
);
2008 ns_release_autorelease_pool (ns_pool
);
2011 /* If we have an auto-save list file,
2012 kill it because we are exiting Emacs deliberately (not crashing).
2013 Do it after shut_down_emacs, which does an auto-save. */
2014 if (STRINGP (Vauto_save_list_file_name
))
2016 Lisp_Object listfile
;
2017 listfile
= Fexpand_file_name (Vauto_save_list_file_name
, Qnil
);
2018 unlink (SSDATA (listfile
));
2022 exit_code
= (XINT (arg
) < 0
2023 ? XINT (arg
) | INT_MIN
2024 : XINT (arg
) & INT_MAX
);
2026 exit_code
= EXIT_SUCCESS
;
2031 /* Perform an orderly shutdown of Emacs. Autosave any modified
2032 buffers, kill any child processes, clean up the terminal modes (if
2033 we're in the foreground), and other stuff like that. Don't perform
2034 any redisplay; this may be called when Emacs is shutting down in
2035 the background, or after its X connection has died.
2037 If SIG is a signal number, print a message for it.
2039 This is called by fatal signal handlers, X protocol error handlers,
2043 shut_down_emacs (int sig
, Lisp_Object stuff
)
2045 /* Prevent running of hooks from now on. */
2048 /* Don't update display from now on. */
2049 Vinhibit_redisplay
= Qt
;
2051 /* If we are controlling the terminal, reset terminal modes. */
2054 pid_t pgrp
= getpgrp ();
2055 pid_t tpgrp
= tcgetpgrp (0);
2056 if ((tpgrp
!= -1) && tpgrp
== pgrp
)
2058 reset_all_sys_modes ();
2059 if (sig
&& sig
!= SIGTERM
)
2061 static char const format
[] = "Fatal error %d: ";
2062 char buf
[sizeof format
- 2 + INT_STRLEN_BOUND (int)];
2063 int buflen
= sprintf (buf
, format
, sig
);
2064 char const *sig_desc
= safe_strsignal (sig
);
2065 emacs_write (STDERR_FILENO
, buf
, buflen
);
2066 emacs_write (STDERR_FILENO
, sig_desc
, strlen (sig_desc
));
2072 reset_all_sys_modes ();
2075 stuff_buffered_input (stuff
);
2077 inhibit_sentinels
= 1;
2078 kill_buffer_processes (Qnil
);
2079 Fdo_auto_save (Qt
, Qnil
);
2081 unlock_all_files ();
2083 /* There is a tendency for a SIGIO signal to arrive within exit,
2084 and cause a SIGHUP because the input descriptor is already closed. */
2087 /* Do this only if terminating normally, we want glyph matrices
2088 etc. in a core dump. */
2089 if (sig
== 0 || sig
== SIGTERM
)
2091 check_glyph_memory ();
2092 check_message_stack ();
2100 ns_term_shutdown (sig
);
2104 xml_cleanup_parser ();
2118 DEFUN ("dump-emacs", Fdump_emacs
, Sdump_emacs
, 2, 2, 0,
2119 doc
: /* Dump current state of Emacs into executable file FILENAME.
2120 Take symbols from SYMFILE (presumably the file you executed to run Emacs).
2121 This is used in the file `loadup.el' when building Emacs.
2123 You must run Emacs in batch mode in order to dump it. */)
2124 (Lisp_Object filename
, Lisp_Object symfile
)
2132 if (! noninteractive
)
2133 error ("Dumping Emacs works only in batch mode");
2136 error ("Emacs can be dumped only once");
2140 /* Warn if the gap between BSS end and heap start is larger than this. */
2141 # define MAX_HEAP_BSS_DIFF (1024*1024)
2143 if (heap_bss_diff
> MAX_HEAP_BSS_DIFF
)
2145 fprintf (stderr
, "**************************************************\n");
2146 fprintf (stderr
, "Warning: Your system has a gap between BSS and the\n");
2147 fprintf (stderr
, "heap (%"pMu
" bytes). This usually means that exec-shield\n",
2149 fprintf (stderr
, "or something similar is in effect. The dump may\n");
2150 fprintf (stderr
, "fail because of this. See the section about\n");
2151 fprintf (stderr
, "exec-shield in etc/PROBLEMS for more information.\n");
2152 fprintf (stderr
, "**************************************************\n");
2154 #endif /* GNU_LINUX */
2156 /* Bind `command-line-processed' to nil before dumping,
2157 so that the dumped Emacs will process its command line
2158 and set up to work with X windows if appropriate. */
2159 symbol
= intern ("command-line-processed");
2160 specbind (symbol
, Qnil
);
2162 CHECK_STRING (filename
);
2163 filename
= Fexpand_file_name (filename
, Qnil
);
2164 filename
= ENCODE_FILE (filename
);
2165 if (!NILP (symfile
))
2167 CHECK_STRING (symfile
);
2168 if (SCHARS (symfile
))
2170 symfile
= Fexpand_file_name (symfile
, Qnil
);
2171 symfile
= ENCODE_FILE (symfile
);
2176 Vpurify_flag
= Qnil
;
2179 set_time_zone_rule (dump_tz
);
2180 #ifndef LOCALTIME_CACHE
2181 /* Force a tz reload, since set_time_zone_rule doesn't. */
2187 /* Tell malloc where start of impure now is. */
2188 /* Also arrange for warnings when nearly out of space. */
2189 #ifndef SYSTEM_MALLOC
2191 /* On Windows, this was done before dumping, and that once suffices.
2192 Meanwhile, my_edata is not valid on Windows. */
2194 extern char my_edata
[];
2195 memory_warnings (my_edata
, malloc_warning
);
2197 #endif /* not WINDOWSNT */
2198 #endif /* not SYSTEM_MALLOC */
2199 #ifdef DOUG_LEA_MALLOC
2200 malloc_state_ptr
= malloc_get_state ();
2203 unexec (SSDATA (filename
), !NILP (symfile
) ? SSDATA (symfile
) : 0);
2205 #ifdef DOUG_LEA_MALLOC
2206 free (malloc_state_ptr
);
2210 Vlibrary_cache
= Qnil
;
2212 #ifdef HAVE_WINDOW_SYSTEM
2213 reset_image_types ();
2222 #endif /* not CANNOT_DUMP */
2225 /* Recover from setlocale (LC_ALL, ""). */
2229 /* The Emacs Lisp reader needs LC_NUMERIC to be "C",
2230 so that numbers are read and printed properly for Emacs Lisp. */
2231 setlocale (LC_NUMERIC
, "C");
2234 /* Set system locale CATEGORY, with previous locale *PLOCALE, to
2237 synchronize_locale (int category
, Lisp_Object
*plocale
, Lisp_Object desired_locale
)
2239 if (! EQ (*plocale
, desired_locale
))
2241 *plocale
= desired_locale
;
2242 setlocale (category
, (STRINGP (desired_locale
)
2243 ? SSDATA (desired_locale
)
2248 /* Set system time locale to match Vsystem_time_locale, if possible. */
2250 synchronize_system_time_locale (void)
2252 synchronize_locale (LC_TIME
, &Vprevious_system_time_locale
,
2253 Vsystem_time_locale
);
2256 /* Set system messages locale to match Vsystem_messages_locale, if
2259 synchronize_system_messages_locale (void)
2262 synchronize_locale (LC_MESSAGES
, &Vprevious_system_messages_locale
,
2263 Vsystem_messages_locale
);
2266 #endif /* HAVE_SETLOCALE */
2270 decode_env_path (const char *evarname
, const char *defalt
, bool empty
)
2272 const char *path
, *p
;
2273 Lisp_Object lpath
, element
, tem
;
2274 /* Default is to use "." for empty path elements.
2275 But if argument EMPTY is true, use nil instead. */
2276 Lisp_Object empty_element
= empty
? Qnil
: build_string (".");
2279 static const char *emacs_dir_env
= "%emacs_dir%/";
2280 const size_t emacs_dir_len
= strlen (emacs_dir_env
);
2281 const char *edir
= egetenv ("emacs_dir");
2282 char emacs_dir
[MAX_UTF8_PATH
];
2284 /* egetenv looks in process-environment, which holds the variables
2285 in their original system-locale encoding. We need emacs_dir to
2288 filename_from_ansi (edir
, emacs_dir
);
2291 /* It's okay to use getenv here, because this function is only used
2292 to initialize variables when Emacs starts up, and isn't called
2295 path
= getenv (evarname
);
2306 /* Ensure values from the environment use the proper directory separator. */
2312 char *path_utf8
, *q
, *d
;
2315 /* Convert each element of PATH to UTF-8. */
2316 p
= path_copy
= alloca (strlen (path
) + 1);
2317 strcpy (path_copy
, path
);
2318 d
= path_utf8
= alloca (4 * strlen (path
) + 1);
2321 q
= _mbschr (p
, SEPCHAR
);
2324 cnv_result
= filename_from_ansi (p
, d
);
2329 /* If conversion of this PATH elements fails, make sure
2330 destination pointer will stay put, thus effectively
2331 ignoring the offending element. */
2332 if (cnv_result
== 0)
2338 else if (cnv_result
!= 0 && d
> path_utf8
)
2339 d
[-1] = '\0'; /* remove last semi-colon and null-terminate PATH */
2341 path_copy
= path_utf8
;
2343 path_copy
= alloca (strlen (path
) + 1);
2344 strcpy (path_copy
, path
);
2346 dostounix_filename (path_copy
);
2353 p
= strchr (path
, SEPCHAR
);
2355 p
= path
+ strlen (path
);
2356 element
= (p
- path
? make_unibyte_string (path
, p
- path
)
2358 if (! NILP (element
))
2361 /* Relative file names in the default path are interpreted as
2362 being relative to $emacs_dir. */
2363 if (edir
&& defaulted
2364 && strncmp (path
, emacs_dir_env
, emacs_dir_len
) == 0)
2365 element
= Fexpand_file_name (Fsubstring
2367 make_number (emacs_dir_len
),
2369 build_unibyte_string (emacs_dir
));
2372 /* Add /: to the front of the name
2373 if it would otherwise be treated as magic. */
2374 tem
= Ffind_file_name_handler (element
, Qt
);
2376 /* However, if the handler says "I'm safe",
2377 don't bother adding /:. */
2381 prop
= Fget (tem
, intern ("safe-magic"));
2387 element
= concat2 (build_string ("/:"), element
);
2388 } /* !NILP (element) */
2390 lpath
= Fcons (element
, lpath
);
2396 return Fnreverse (lpath
);
2399 DEFUN ("daemonp", Fdaemonp
, Sdaemonp
, 0, 0, 0,
2400 doc
: /* Return non-nil if the current emacs process is a daemon.
2401 If the daemon was given a name argument, return that name. */)
2406 return build_string (daemon_name
);
2413 DEFUN ("daemon-initialized", Fdaemon_initialized
, Sdaemon_initialized
, 0, 0, 0,
2414 doc
: /* Mark the Emacs daemon as being initialized.
2415 This finishes the daemonization process by doing the other half of detaching
2416 from the parent process and its tty file descriptors. */)
2423 error ("This function can only be called if emacs is run as a daemon");
2425 if (daemon_pipe
[1] < 0)
2426 error ("The daemon has already been initialized");
2428 if (NILP (Vafter_init_time
))
2429 error ("This function can only be called after loading the init files");
2431 /* Get rid of stdin, stdout and stderr. */
2432 nfd
= emacs_open ("/dev/null", O_RDWR
, 0);
2434 err
|= dup2 (nfd
, 0) < 0;
2435 err
|= dup2 (nfd
, 1) < 0;
2436 err
|= dup2 (nfd
, 2) < 0;
2437 err
|= emacs_close (nfd
) != 0;
2439 /* Closing the pipe will notify the parent that it can exit.
2440 FIXME: In case some other process inherited the pipe, closing it here
2441 won't notify the parent because it's still open elsewhere, so we
2442 additionally send a byte, just to make sure the parent really exits.
2443 Instead, we should probably close the pipe in start-process and
2444 call-process to make sure the pipe is never inherited by
2446 err
|= write (daemon_pipe
[1], "\n", 1) < 0;
2447 err
|= emacs_close (daemon_pipe
[1]) != 0;
2448 /* Set it to an invalid value so we know we've already run this function. */
2449 daemon_pipe
[1] = -1;
2452 error ("I/O error during daemon initialization");
2457 syms_of_emacs (void)
2461 DEFSYM (Qfile_name_handler_alist
, "file-name-handler-alist");
2462 DEFSYM (Qrisky_local_variable
, "risky-local-variable");
2463 DEFSYM (Qkill_emacs
, "kill-emacs");
2464 DEFSYM (Qkill_emacs_hook
, "kill-emacs-hook");
2466 DEFVAR_LISP ("command-line-args", Vcommand_line_args
,
2467 doc
: /* Args passed by shell to Emacs, as a list of strings.
2468 Many arguments are deleted from the list as they are processed. */);
2470 DEFVAR_LISP ("system-type", Vsystem_type
,
2471 doc
: /* The value is a symbol indicating the type of operating system you are using.
2473 `gnu' compiled for a GNU Hurd system.
2474 `gnu/linux' compiled for a GNU/Linux system.
2475 `gnu/kfreebsd' compiled for a GNU system with a FreeBSD kernel.
2476 `darwin' compiled for Darwin (GNU-Darwin, Mac OS X, ...).
2477 `ms-dos' compiled as an MS-DOS application.
2478 `windows-nt' compiled as a native W32 application.
2479 `cygwin' compiled using the Cygwin library.
2480 Anything else (in Emacs 24.1, the possibilities are: aix, berkeley-unix,
2481 hpux, irix, usg-unix-v) indicates some sort of Unix system. */);
2482 Vsystem_type
= intern_c_string (SYSTEM_TYPE
);
2483 /* See configure.ac (and config.nt) for the possible SYSTEM_TYPEs. */
2485 DEFVAR_LISP ("system-configuration", Vsystem_configuration
,
2486 doc
: /* Value is string indicating configuration Emacs was built for.
2487 On MS-Windows, the value reflects the OS flavor and version on which
2488 Emacs is running. */);
2489 Vsystem_configuration
= build_string (EMACS_CONFIGURATION
);
2491 DEFVAR_LISP ("system-configuration-options", Vsystem_configuration_options
,
2492 doc
: /* String containing the configuration options Emacs was built with. */);
2493 Vsystem_configuration_options
= build_string (EMACS_CONFIG_OPTIONS
);
2495 DEFVAR_LISP ("system-configuration-features", Vsystem_configuration_features
,
2496 doc
: /* String listing some of the main features this Emacs was compiled with.
2497 An element of the form \"FOO\" generally means that HAVE_FOO was
2498 defined during the build. */);
2499 Vsystem_configuration_features
= build_string (EMACS_CONFIG_FEATURES
);
2501 DEFVAR_BOOL ("noninteractive", noninteractive1
,
2502 doc
: /* Non-nil means Emacs is running without interactive terminal. */);
2504 DEFVAR_LISP ("kill-emacs-hook", Vkill_emacs_hook
,
2505 doc
: /* Hook run when `kill-emacs' is called.
2506 Since `kill-emacs' may be invoked when the terminal is disconnected (or
2507 in other similar situations), functions placed on this hook should not
2508 expect to be able to interact with the user. To ask for confirmation,
2509 see `kill-emacs-query-functions' instead.
2511 Before Emacs 24.1, the hook was not run in batch mode, i.e., if
2512 `noninteractive' was non-nil. */);
2513 Vkill_emacs_hook
= Qnil
;
2515 DEFVAR_LISP ("path-separator", Vpath_separator
,
2516 doc
: /* String containing the character that separates directories in
2517 search paths, such as PATH and other similar environment variables. */);
2520 Vpath_separator
= make_string (&c
, 1);
2523 DEFVAR_LISP ("invocation-name", Vinvocation_name
,
2524 doc
: /* The program name that was used to run Emacs.
2525 Any directory names are omitted. */);
2527 DEFVAR_LISP ("invocation-directory", Vinvocation_directory
,
2528 doc
: /* The directory in which the Emacs executable was found, to run it.
2529 The value is nil if that directory's name is not known. */);
2531 DEFVAR_LISP ("installation-directory", Vinstallation_directory
,
2532 doc
: /* A directory within which to look for the `lib-src' and `etc' directories.
2533 In an installed Emacs, this is normally nil. It is non-nil if
2534 both `lib-src' (on MS-DOS, `info') and `etc' directories are found
2535 within the variable `invocation-directory' or its parent. For example,
2536 this is the case when running an uninstalled Emacs executable from its
2537 build directory. */);
2538 Vinstallation_directory
= Qnil
;
2540 DEFVAR_LISP ("system-messages-locale", Vsystem_messages_locale
,
2541 doc
: /* System locale for messages. */);
2542 Vsystem_messages_locale
= Qnil
;
2544 DEFVAR_LISP ("previous-system-messages-locale",
2545 Vprevious_system_messages_locale
,
2546 doc
: /* Most recently used system locale for messages. */);
2547 Vprevious_system_messages_locale
= Qnil
;
2549 DEFVAR_LISP ("system-time-locale", Vsystem_time_locale
,
2550 doc
: /* System locale for time. */);
2551 Vsystem_time_locale
= Qnil
;
2553 DEFVAR_LISP ("previous-system-time-locale", Vprevious_system_time_locale
,
2554 doc
: /* Most recently used system locale for time. */);
2555 Vprevious_system_time_locale
= Qnil
;
2557 DEFVAR_LISP ("before-init-time", Vbefore_init_time
,
2558 doc
: /* Value of `current-time' before Emacs begins initialization. */);
2559 Vbefore_init_time
= Qnil
;
2561 DEFVAR_LISP ("after-init-time", Vafter_init_time
,
2562 doc
: /* Value of `current-time' after loading the init files.
2563 This is nil during initialization. */);
2564 Vafter_init_time
= Qnil
;
2566 DEFVAR_BOOL ("inhibit-x-resources", inhibit_x_resources
,
2567 doc
: /* If non-nil, X resources, Windows Registry settings, and NS defaults are not used. */);
2568 inhibit_x_resources
= 0;
2570 DEFVAR_LISP ("emacs-copyright", Vemacs_copyright
,
2571 doc
: /* Short copyright string for this version of Emacs. */);
2572 Vemacs_copyright
= build_string (emacs_copyright
);
2574 DEFVAR_LISP ("emacs-version", Vemacs_version
,
2575 doc
: /* Version numbers of this version of Emacs. */);
2576 Vemacs_version
= build_string (emacs_version
);
2578 DEFVAR_LISP ("report-emacs-bug-address", Vreport_emacs_bug_address
,
2579 doc
: /* Address of mailing list for GNU Emacs bugs. */);
2580 Vreport_emacs_bug_address
= build_string (emacs_bugreport
);
2582 DEFVAR_LISP ("dynamic-library-alist", Vdynamic_library_alist
,
2583 doc
: /* Alist of dynamic libraries vs external files implementing them.
2584 Each element is a list (LIBRARY FILE...), where the car is a symbol
2585 representing a supported external library, and the rest are strings giving
2586 alternate filenames for that library.
2588 Emacs tries to load the library from the files in the order they appear on
2589 the list; if none is loaded, the running session of Emacs won't have access
2592 Note that image types `pbm' and `xbm' do not need entries in this variable
2593 because they do not depend on external libraries and are always available.
2595 Also note that this is not a generic facility for accessing external
2596 libraries; only those already known by Emacs will be loaded. */);
2597 Vdynamic_library_alist
= Qnil
;
2598 Fput (intern_c_string ("dynamic-library-alist"), Qrisky_local_variable
, Qt
);
2601 Vlibrary_cache
= Qnil
;
2602 staticpro (&Vlibrary_cache
);