1 /* Fully extensible Emacs, running on Unix, intended for GNU.
3 Copyright (C) 1985-1987, 1993-1995, 1997-1999, 2001-2011
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/>. */
27 #include <sys/types.h>
36 #include <windows.h> /* just for w32.h */
38 #include "w32heap.h" /* for prototype of sbrk */
41 #ifdef NS_IMPL_GNUSTEP
42 /* At least under Debian, GSConfig is in a subdirectory. --Stef */
43 #include <GNUstepBase/GSConfig.h>
47 #include "intervals.h"
52 #include "blockinput.h"
53 #include "syssignal.h"
56 #include "termhooks.h"
78 #include <sys/resource.h>
81 #ifdef HAVE_PERSONALITY_LINUX32
82 #include <sys/personality.h>
92 #define setpgrp setpgid
96 static const char emacs_version
[] = VERSION
;
97 static const char emacs_copyright
[] = "Copyright (C) 2011 Free Software Foundation, Inc.";
99 /* Make these values available in GDB, which doesn't see macros. */
102 int gdb_use_lsb EXTERNALLY_VISIBLE
= 1;
104 int gdb_use_lsb EXTERNALLY_VISIBLE
= 0;
106 #ifndef USE_LISP_UNION_TYPE
107 int gdb_use_union EXTERNALLY_VISIBLE
= 0;
109 int gdb_use_union EXTERNALLY_VISIBLE
= 1;
111 EMACS_INT gdb_valbits EXTERNALLY_VISIBLE
= VALBITS
;
112 EMACS_INT gdb_gctypebits EXTERNALLY_VISIBLE
= GCTYPEBITS
;
113 #if defined (DATA_SEG_BITS) && ! defined (USE_LSB_TAG)
114 EMACS_INT gdb_data_seg_bits EXTERNALLY_VISIBLE
= DATA_SEG_BITS
;
116 EMACS_INT gdb_data_seg_bits EXTERNALLY_VISIBLE
= 0;
118 EMACS_INT PVEC_FLAG EXTERNALLY_VISIBLE
= PSEUDOVECTOR_FLAG
;
119 EMACS_INT gdb_array_mark_flag EXTERNALLY_VISIBLE
= ARRAY_MARK_FLAG
;
120 /* GDB might say "No enum type named pvec_type" if we don't have at
121 least one symbol with that type, and then xbacktrace could fail. */
122 enum pvec_type gdb_pvec_type EXTERNALLY_VISIBLE
= PVEC_TYPE_MASK
;
124 /* Empty lisp strings. To avoid having to build any others. */
125 Lisp_Object empty_unibyte_string
, empty_multibyte_string
;
127 /* Set nonzero after Emacs has started up the first time.
128 Prevents reinitialization of the Lisp world and keymaps
129 on subsequent starts. */
133 extern void unexec_init_emacs_zone (void);
136 #ifdef DOUG_LEA_MALLOC
137 /* Preserves a pointer to the memory allocated that copies that
138 static data inside glibc's malloc. */
139 static void *malloc_state_ptr
;
140 /* From glibc, a routine that returns a copy of the malloc internal state. */
141 extern void *malloc_get_state (void);
142 /* From glibc, a routine that overwrites the malloc internal state. */
143 extern int malloc_set_state (void*);
144 /* Non-zero if the MALLOC_CHECK_ environment variable was set while
145 dumping. Used to work around a bug in glibc's malloc. */
146 static int malloc_using_checking
;
149 Lisp_Object Qfile_name_handler_alist
;
151 Lisp_Object Qrisky_local_variable
;
153 /* If non-zero, Emacs should not attempt to use a window-specific code,
154 but instead should use the virtual terminal under which it was started. */
155 int inhibit_window_system
;
157 /* If non-zero, a filter or a sentinel is running. Tested to save the match
158 data on the first attempt to change it inside asynchronous code. */
159 int running_asynch_code
;
161 #if defined(HAVE_X_WINDOWS) || defined(HAVE_NS)
162 /* If non-zero, -d was specified, meaning we're using some window system. */
166 /* An address near the bottom of the stack.
167 Tells GC how to save a copy of the stack. */
170 /* The address where the heap starts (from the first sbrk (0) call). */
171 static void *my_heap_start
;
173 /* The gap between BSS end and heap start as far as we can tell. */
174 static unsigned long heap_bss_diff
;
176 /* Nonzero means running Emacs without interactive terminal. */
179 /* Nonzero means remove site-lisp directories from load-path. */
182 /* Name for the server started by the daemon.*/
183 static char *daemon_name
;
185 /* Pipe used to send exit notification to the daemon parent at
189 /* Save argv and argc. */
193 static void sort_args (int argc
, char **argv
);
194 static void syms_of_emacs (void);
196 /* MSVC needs each string be shorter than 2048 bytes, so the usage
197 strings below are split to not overflow this limit. */
199 Usage: %s [OPTION-OR-FILENAME]...\n\
201 Run Emacs, the extensible, customizable, self-documenting real-time\n\
202 display editor. The recommended way to start Emacs for normal editing\n\
203 is with no options at all.\n\
205 Run M-x info RET m emacs RET m emacs invocation RET inside Emacs to\n\
206 read the main documentation for these command-line arguments.\n\
208 Initialization options:\n\
210 --batch do not do interactive display; implies -q\n\
211 --chdir DIR change to directory DIR\n\
212 --daemon start a server in the background\n\
213 --debug-init enable Emacs Lisp debugger for init file\n\
214 --display, -d DISPLAY use X server DISPLAY\n\
215 --no-desktop do not load a saved desktop\n\
216 --no-init-file, -q load neither ~/.emacs nor default.el\n\
217 --no-shared-memory, -nl do not use shared memory\n\
218 --no-site-file do not load site-start.el\n\
219 --no-site-lisp, -nsl do not add site-lisp directories to load-path\n\
220 --no-splash do not display a splash screen on startup\n\
221 --no-window-system, -nw do not communicate with X, ignoring $DISPLAY\n\
222 --quick, -Q equivalent to:\n\
223 -q --no-site-file --no-site-lisp --no-splash\n\
224 --script FILE run FILE as an Emacs Lisp script\n\
225 --terminal, -t DEVICE use DEVICE for terminal I/O\n\
226 --user, -u USER load ~USER/.emacs instead of your own\n\
232 FILE visit FILE using find-file\n\
233 +LINE go to line LINE in next FILE\n\
234 +LINE:COLUMN go to line LINE, column COLUMN, in next FILE\n\
235 --directory, -L DIR add DIR to variable load-path\n\
236 --eval EXPR evaluate Emacs Lisp expression EXPR\n\
237 --execute EXPR evaluate Emacs Lisp expression EXPR\n\
238 --file FILE visit FILE using find-file\n\
239 --find-file FILE visit FILE using find-file\n\
240 --funcall, -f FUNC call Emacs Lisp function FUNC with no arguments\n\
241 --insert FILE insert contents of FILE into current buffer\n\
242 --kill exit without asking for confirmation\n\
243 --load, -l FILE load Emacs Lisp FILE using the load function\n\
244 --visit FILE visit FILE using find-file\n\
250 --background-color, -bg COLOR window background color\n\
251 --basic-display, -D disable many display features;\n\
252 used for debugging Emacs\n\
253 --border-color, -bd COLOR main border color\n\
254 --border-width, -bw WIDTH width of main border\n\
255 --color, --color=MODE override color mode for character terminals;\n\
256 MODE defaults to `auto', and\n\
257 can also be `never', `always',\n\
258 or a mode name like `ansi8'\n\
259 --cursor-color, -cr COLOR color of the Emacs cursor indicating point\n\
260 --font, -fn FONT default font; must be fixed-width\n\
261 --foreground-color, -fg COLOR window foreground color\n\
262 --fullheight, -fh make the first frame high as the screen\n\
263 --fullscreen, -fs make the first frame fullscreen\n\
264 --fullwidth, -fw make the first frame wide as the screen\n\
265 --maximized, -mm make the first frame maximized\n\
266 --geometry, -g GEOMETRY window geometry\n\
267 --no-bitmap-icon, -nbi do not use picture of gnu for Emacs icon\n\
268 --iconic start Emacs in iconified state\n\
269 --internal-border, -ib WIDTH width between text and main border\n\
270 --line-spacing, -lsp PIXELS additional space to put between lines\n\
271 --mouse-color, -ms COLOR mouse cursor color in Emacs window\n\
272 --name NAME title for initial Emacs frame\n\
273 --no-blinking-cursor, -nbc disable blinking cursor\n\
274 --reverse-video, -r, -rv switch foreground and background\n\
275 --title, -T TITLE title for initial Emacs frame\n\
276 --vertical-scroll-bars, -vb enable vertical scroll bars\n\
277 --xrm XRESOURCES set additional X resources\n\
278 --parent-id XID set parent window\n\
279 --help display this help and exit\n\
280 --version output version information and exit\n\
284 You can generally also specify long option names with a single -; for\n\
285 example, -batch as well as --batch. You can use any unambiguous\n\
286 abbreviation for a --option.\n\
288 Various environment variables and window system resources also affect\n\
289 Emacs' operation. See the main documentation.\n\
291 Report bugs to bug-gnu-emacs@gnu.org. First, please see the Bugs\n\
292 section of the Emacs manual or the file BUGS.\n"
295 /* Signal code for the fatal signal that was received. */
296 static int fatal_error_code
;
298 /* Nonzero if handling a fatal error already. */
299 int fatal_error_in_progress
;
301 /* If non-null, call this function from fatal_error_signal before
302 committing suicide. */
304 static void (*fatal_error_signal_hook
) (void);
306 #ifdef FORWARD_SIGNAL_TO_MAIN_THREAD
307 /* When compiled with GTK and running under Gnome,
308 multiple threads may be created. Keep track of our main
309 thread to make sure signals are delivered to it (see syssignal.h). */
311 pthread_t main_thread
;
315 /* Handle bus errors, invalid instruction, etc. */
316 #ifndef FLOAT_CATCH_SIGILL
320 fatal_error_signal (int sig
)
322 SIGNAL_THREAD_CHECK (sig
);
323 fatal_error_code
= sig
;
324 signal (sig
, SIG_DFL
);
326 TOTALLY_UNBLOCK_INPUT
;
328 /* If fatal error occurs in code below, avoid infinite recursion. */
329 if (! fatal_error_in_progress
)
331 fatal_error_in_progress
= 1;
333 if (sig
== SIGTERM
|| sig
== SIGHUP
|| sig
== SIGINT
)
334 Fkill_emacs (make_number (sig
));
336 shut_down_emacs (sig
, 0, Qnil
);
339 /* Signal the same code; this time it will really be fatal.
340 Remember that since we're in a signal handler, the signal we're
341 going to send is probably blocked, so we have to unblock it if we
342 want to really receive it. */
344 sigunblock (sigmask (fatal_error_code
));
347 if (fatal_error_signal_hook
)
348 fatal_error_signal_hook ();
350 kill (getpid (), fatal_error_code
);
355 /* Handler for SIGDANGER. */
357 memory_warning_signal (sig
)
360 signal (sig
, memory_warning_signal
);
361 SIGNAL_THREAD_CHECK (sig
);
363 malloc_warning ("Operating system warns that virtual memory is running low.\n");
365 /* It might be unsafe to call do_auto_save now. */
366 force_auto_save_soon ();
370 /* We define abort, rather than using it from the library,
371 so that GDB can return from a breakpoint here.
372 MSDOS has its own definition in msdos.c. */
374 #if ! defined (DOS_NT) && ! defined (NO_ABORT)
379 kill (getpid (), SIGABRT
);
380 /* This shouldn't be executed, but it prevents a warning. */
386 /* Code for dealing with Lisp access to the Unix command line. */
389 init_cmdargs (int argc
, char **argv
, int skip_args
)
392 Lisp_Object name
, dir
, handler
;
393 int count
= SPECPDL_INDEX ();
394 Lisp_Object raw_name
;
399 raw_name
= build_string (argv
[0]);
401 /* Add /: to the front of the name
402 if it would otherwise be treated as magic. */
403 handler
= Ffind_file_name_handler (raw_name
, Qt
);
404 if (! NILP (handler
))
405 raw_name
= concat2 (build_string ("/:"), raw_name
);
407 Vinvocation_name
= Ffile_name_nondirectory (raw_name
);
408 Vinvocation_directory
= Ffile_name_directory (raw_name
);
410 /* If we got no directory in argv[0], search PATH to find where
411 Emacs actually came from. */
412 if (NILP (Vinvocation_directory
))
415 int yes
= openp (Vexec_path
, Vinvocation_name
,
416 Vexec_suffixes
, &found
, make_number (X_OK
));
419 /* Add /: to the front of the name
420 if it would otherwise be treated as magic. */
421 handler
= Ffind_file_name_handler (found
, Qt
);
422 if (! NILP (handler
))
423 found
= concat2 (build_string ("/:"), found
);
424 Vinvocation_directory
= Ffile_name_directory (found
);
428 if (!NILP (Vinvocation_directory
)
429 && NILP (Ffile_name_absolute_p (Vinvocation_directory
)))
430 /* Emacs was started with relative path, like ./emacs.
432 Vinvocation_directory
= Fexpand_file_name (Vinvocation_directory
, Qnil
);
434 Vinstallation_directory
= Qnil
;
436 if (!NILP (Vinvocation_directory
))
438 dir
= Vinvocation_directory
;
439 name
= Fexpand_file_name (Vinvocation_name
, dir
);
442 Lisp_Object tem
, lib_src_exists
;
443 Lisp_Object etc_exists
, info_exists
;
445 /* See if dir contains subdirs for use by Emacs.
446 Check for the ones that would exist in a build directory,
447 not including lisp and info. */
448 tem
= Fexpand_file_name (build_string ("lib-src"), dir
);
449 lib_src_exists
= Ffile_exists_p (tem
);
452 /* MSDOS installations frequently remove lib-src, but we still
453 must set installation-directory, or else info won't find
454 its files (it uses the value of installation-directory). */
455 tem
= Fexpand_file_name (build_string ("info"), dir
);
456 info_exists
= Ffile_exists_p (tem
);
461 if (!NILP (lib_src_exists
) || !NILP (info_exists
))
463 tem
= Fexpand_file_name (build_string ("etc"), dir
);
464 etc_exists
= Ffile_exists_p (tem
);
465 if (!NILP (etc_exists
))
467 Vinstallation_directory
468 = Ffile_name_as_directory (dir
);
473 /* See if dir's parent contains those subdirs. */
474 tem
= Fexpand_file_name (build_string ("../lib-src"), dir
);
475 lib_src_exists
= Ffile_exists_p (tem
);
479 /* See the MSDOS commentary above. */
480 tem
= Fexpand_file_name (build_string ("../info"), dir
);
481 info_exists
= Ffile_exists_p (tem
);
486 if (!NILP (lib_src_exists
) || !NILP (info_exists
))
488 tem
= Fexpand_file_name (build_string ("../etc"), dir
);
489 etc_exists
= Ffile_exists_p (tem
);
490 if (!NILP (etc_exists
))
492 tem
= Fexpand_file_name (build_string (".."), dir
);
493 Vinstallation_directory
494 = Ffile_name_as_directory (tem
);
499 /* If the Emacs executable is actually a link,
500 next try the dir that the link points into. */
501 tem
= Ffile_symlink_p (name
);
504 name
= Fexpand_file_name (tem
, dir
);
505 dir
= Ffile_name_directory (name
);
512 Vcommand_line_args
= Qnil
;
514 for (i
= argc
- 1; i
>= 0; i
--)
516 if (i
== 0 || i
> skip_args
)
517 /* For the moment, we keep arguments as is in unibyte strings.
518 They are decoded in the function command-line after we know
519 locale-coding-system. */
521 = Fcons (make_unibyte_string (argv
[i
], strlen (argv
[i
])),
525 unbind_to (count
, Qnil
);
528 DEFUN ("invocation-name", Finvocation_name
, Sinvocation_name
, 0, 0, 0,
529 doc
: /* Return the program name that was used to run Emacs.
530 Any directory names are omitted. */)
533 return Fcopy_sequence (Vinvocation_name
);
536 DEFUN ("invocation-directory", Finvocation_directory
, Sinvocation_directory
,
538 doc
: /* Return the directory name in which the Emacs executable was located. */)
541 return Fcopy_sequence (Vinvocation_directory
);
546 /* A valid but unlikely value for the TZ environment value.
547 It is OK (though a bit slower) if the user actually chooses this value. */
548 static char dump_tz
[] = "UtC0";
551 #ifndef ORDINARY_LINK
552 /* We don't include crtbegin.o and crtend.o in the link,
553 so these functions and variables might be missed.
554 Provide dummy definitions to avoid error.
555 (We don't have any real constructors or destructors.) */
558 /* Define a dummy function F. Declare F too, to pacify gcc
559 -Wmissing-prototypes. */
560 #define DEFINE_DUMMY_FUNCTION(f) \
561 void f (void) EXTERNALLY_VISIBLE; void f (void) {}
563 #ifndef GCC_CTORS_IN_LIBC
564 DEFINE_DUMMY_FUNCTION (__do_global_ctors
)
565 DEFINE_DUMMY_FUNCTION (__do_global_ctors_aux
)
566 DEFINE_DUMMY_FUNCTION (__do_global_dtors
)
567 /* GNU/Linux has a bug in its library; avoid an error. */
569 char * __CTOR_LIST__
[2] EXTERNALLY_VISIBLE
= { (char *) (-1), 0 };
571 char * __DTOR_LIST__
[2] EXTERNALLY_VISIBLE
= { (char *) (-1), 0 };
572 #endif /* GCC_CTORS_IN_LIBC */
573 DEFINE_DUMMY_FUNCTION (__main
)
574 #endif /* __GNUC__ */
575 #endif /* ORDINARY_LINK */
577 /* Test whether the next argument in ARGV matches SSTR or a prefix of
578 LSTR (at least MINLEN characters). If so, then if VALPTR is non-null
579 (the argument is supposed to have a value) store in *VALPTR either
580 the next argument or the portion of this one after the equal sign.
581 ARGV is read starting at position *SKIPPTR; this index is advanced
582 by the number of arguments used.
584 Too bad we can't just use getopt for all of this, but we don't have
585 enough information to do it right. */
588 argmatch (char **argv
, int argc
, const char *sstr
, const char *lstr
,
589 int minlen
, char **valptr
, int *skipptr
)
595 /* Don't access argv[argc]; give up in advance. */
596 if (argc
<= *skipptr
+ 1)
599 arg
= argv
[*skipptr
+1];
602 if (strcmp (arg
, sstr
) == 0)
606 *valptr
= argv
[*skipptr
+2];
613 arglen
= (valptr
!= NULL
&& (p
= strchr (arg
, '=')) != NULL
614 ? p
- arg
: strlen (arg
));
615 if (lstr
== 0 || arglen
< minlen
|| strncmp (arg
, lstr
, arglen
) != 0)
617 else if (valptr
== NULL
)
628 else if (argv
[*skipptr
+2] != NULL
)
630 *valptr
= argv
[*skipptr
+2];
640 #ifdef DOUG_LEA_MALLOC
642 /* malloc can be invoked even before main (e.g. by the dynamic
643 linker), so the dumped malloc state must be restored as early as
644 possible using this special hook. */
647 malloc_initialize_hook (void)
650 extern char **environ
;
655 if (!malloc_using_checking
)
656 /* Work around a bug in glibc's malloc. MALLOC_CHECK_ must be
657 ignored if the heap to be restored was constructed without
658 malloc checking. Can't use unsetenv, since that calls malloc. */
662 for (p
= environ
; p
&& *p
; p
++)
663 if (strncmp (*p
, "MALLOC_CHECK_=", 14) == 0)
672 malloc_set_state (malloc_state_ptr
);
673 #ifndef XMALLOC_OVERRUN_CHECK
674 free (malloc_state_ptr
);
679 if (my_heap_start
== 0)
680 my_heap_start
= sbrk (0);
681 malloc_using_checking
= getenv ("MALLOC_CHECK_") != NULL
;
685 void (*__malloc_initialize_hook
) (void) EXTERNALLY_VISIBLE
= malloc_initialize_hook
;
687 #endif /* DOUG_LEA_MALLOC */
692 main (int argc
, char **argv
)
697 char stack_bottom_variable
;
698 int do_initial_setlocale
;
700 #ifdef HAVE_SETRLIMIT
715 #if defined (USE_GTK) && defined (G_SLICE_ALWAYS_MALLOC)
716 /* This is used by the Cygwin build. */
717 setenv ("G_SLICE", "always-malloc", 1);
722 extern char my_endbss
[];
723 extern char *my_endbss_static
;
725 if (my_heap_start
== 0)
726 my_heap_start
= sbrk (0);
728 heap_bss_diff
= (char *)my_heap_start
- max (my_endbss
, my_endbss_static
);
731 #ifdef RUN_TIME_REMAP
733 run_time_remap (argv
[0]);
736 /* If using unexmacosx.c (set by s/darwin.h), we must do this. */
739 unexec_init_emacs_zone ();
742 sort_args (argc
, argv
);
744 while (argv
[argc
]) argc
++;
746 if (argmatch (argv
, argc
, "-version", "--version", 3, NULL
, &skip_args
))
748 const char *version
, *copyright
;
751 Lisp_Object tem
, tem2
;
752 tem
= Fsymbol_value (intern_c_string ("emacs-version"));
753 tem2
= Fsymbol_value (intern_c_string ("emacs-copyright"));
756 fprintf (stderr
, "Invalid value of `emacs-version'\n");
761 fprintf (stderr
, "Invalid value of `emacs-copyright'\n");
766 version
= SSDATA (tem
);
767 copyright
= SSDATA (tem2
);
772 version
= emacs_version
;
773 copyright
= emacs_copyright
;
775 printf ("GNU Emacs %s\n", version
);
776 printf ("%s\n", copyright
);
777 printf ("GNU Emacs comes with ABSOLUTELY NO WARRANTY.\n");
778 printf ("You may redistribute copies of Emacs\n");
779 printf ("under the terms of the GNU General Public License.\n");
780 printf ("For more information about these matters, ");
781 printf ("see the file named COPYING.\n");
785 if (argmatch (argv
, argc
, "-chdir", "--chdir", 4, &ch_to_dir
, &skip_args
))
786 if (chdir (ch_to_dir
) == -1)
788 fprintf (stderr
, "%s: Can't chdir to %s: %s\n",
789 argv
[0], ch_to_dir
, strerror (errno
));
794 #ifdef HAVE_PERSONALITY_LINUX32
796 && (strcmp (argv
[argc
-1], "dump") == 0
797 || strcmp (argv
[argc
-1], "bootstrap") == 0)
798 && ! getenv ("EMACS_HEAP_EXEC"))
800 static char heapexec
[] = "EMACS_HEAP_EXEC=true";
801 /* Set this so we only do this once. */
804 /* A flag to turn off address randomization which is introduced
805 in linux kernel shipped with fedora core 4 */
806 #define ADD_NO_RANDOMIZE 0x0040000
807 personality (PER_LINUX32
| ADD_NO_RANDOMIZE
);
808 #undef ADD_NO_RANDOMIZE
810 execvp (argv
[0], argv
);
812 /* If the exec fails, try to dump anyway. */
815 #endif /* HAVE_PERSONALITY_LINUX32 */
817 #if defined (HAVE_SETRLIMIT) && defined (RLIMIT_STACK)
818 /* Extend the stack space available.
819 Don't do that if dumping, since some systems (e.g. DJGPP)
820 might define a smaller stack limit at that time. */
823 && (!noninteractive
|| initialized
)
825 && !getrlimit (RLIMIT_STACK
, &rlim
))
828 extern size_t re_max_failures
;
829 /* Approximate the amount regex.c needs per unit of re_max_failures. */
830 int ratio
= 20 * sizeof (char *);
831 /* Then add 33% to cover the size of the smaller stacks that regex.c
832 successively allocates and discards, on its way to the maximum. */
834 /* Add in some extra to cover
835 what we're likely to use for other reasons. */
836 newlim
= re_max_failures
* ratio
+ 200000;
838 /* NetBSD (at least NetBSD 1.2G and former) has a bug in its
839 stack allocation routine for new process that the allocation
840 fails if stack limit is not on page boundary. So, round up the
841 new limit to page boundary. */
842 newlim
= (newlim
+ getpagesize () - 1) / getpagesize () * getpagesize();
844 if (newlim
> rlim
.rlim_max
)
846 newlim
= rlim
.rlim_max
;
847 /* Don't let regex.c overflow the stack we have. */
848 re_max_failures
= (newlim
- 200000) / ratio
;
850 if (rlim
.rlim_cur
< newlim
)
851 rlim
.rlim_cur
= newlim
;
853 setrlimit (RLIMIT_STACK
, &rlim
);
855 #endif /* HAVE_SETRLIMIT and RLIMIT_STACK */
857 /* Record (approximately) where the stack begins. */
858 stack_bottom
= &stack_bottom_variable
;
862 #ifndef SYSTEM_MALLOC
863 /* Arrange to get warning messages as memory fills up. */
864 memory_warnings (0, malloc_warning
);
866 /* Call malloc at least once, to run the initial __malloc_hook.
867 Also call realloc and free for consistency. */
868 free (realloc (malloc (4), 4));
871 /* Arrange to disable interrupt input inside malloc etc. */
872 uninterrupt_malloc ();
873 # endif /* not SYNC_INPUT */
874 #endif /* not SYSTEM_MALLOC */
876 #ifdef FORWARD_SIGNAL_TO_MAIN_THREAD
877 main_thread
= pthread_self ();
878 #endif /* FORWARD_SIGNAL_TO_MAIN_THREAD */
880 #if defined (MSDOS) || defined (WINDOWSNT)
881 /* We do all file input/output as binary files. When we need to translate
882 newlines, we do that manually. */
884 #endif /* MSDOS || WINDOWSNT */
887 if (!isatty (fileno (stdin
)))
888 setmode (fileno (stdin
), O_BINARY
);
889 if (!isatty (fileno (stdout
)))
892 setmode (fileno (stdout
), O_BINARY
);
896 /* Skip initial setlocale if LC_ALL is "C", as it's not needed in that case.
897 The build procedure uses this while dumping, to ensure that the
898 dumped Emacs does not have its system locale tables initialized,
899 as that might cause screwups when the dumped Emacs starts up. */
901 char *lc_all
= getenv ("LC_ALL");
902 do_initial_setlocale
= ! lc_all
|| strcmp (lc_all
, "C");
905 /* Set locale now, so that initial error messages are localized properly.
906 fixup_locale must wait until later, since it builds strings. */
907 if (do_initial_setlocale
)
908 setlocale (LC_ALL
, "");
910 inhibit_window_system
= 0;
912 /* Handle the -t switch, which specifies filename to use as terminal. */
916 if (argmatch (argv
, argc
, "-t", "--terminal", 4, &term
, &skip_args
))
921 result
= emacs_open (term
, O_RDWR
, 0);
922 if (result
< 0 || dup (0) < 0)
924 char *errstring
= strerror (errno
);
925 fprintf (stderr
, "%s: %s: %s\n", argv
[0], term
, errstring
);
930 fprintf (stderr
, "%s: %s: not a tty\n", argv
[0], term
);
933 fprintf (stderr
, "Using %s\n", term
);
934 #ifdef HAVE_WINDOW_SYSTEM
935 inhibit_window_system
= 1; /* -t => -nw */
942 /* Command line option --no-windows is deprecated and thus not mentioned
943 in the manual and usage informations. */
944 if (argmatch (argv
, argc
, "-nw", "--no-window-system", 6, NULL
, &skip_args
)
945 || argmatch (argv
, argc
, "-nw", "--no-windows", 6, NULL
, &skip_args
))
946 inhibit_window_system
= 1;
948 /* Handle the -batch switch, which means don't do interactive display. */
950 if (argmatch (argv
, argc
, "-batch", "--batch", 5, NULL
, &skip_args
))
953 Vundo_outer_limit
= Qnil
;
955 if (argmatch (argv
, argc
, "-script", "--script", 3, &junk
, &skip_args
))
957 noninteractive
= 1; /* Set batch mode. */
958 /* Convert --script to -scriptload, un-skip it, and sort again
959 so that it will be handled in proper sequence. */
960 /* FIXME broken for --script=FILE - is that supposed to work? */
961 argv
[skip_args
- 1] = (char *) "-scriptload";
963 sort_args (argc
, argv
);
966 /* Handle the --help option, which gives a usage message. */
967 if (argmatch (argv
, argc
, "-help", "--help", 3, NULL
, &skip_args
))
969 printf (USAGE1
, argv
[0], USAGE2
);
975 if (argmatch (argv
, argc
, "-daemon", "--daemon", 5, NULL
, &skip_args
)
976 || argmatch (argv
, argc
, "-daemon", "--daemon", 5, &dname_arg
, &skip_args
))
981 /* Start as a daemon: fork a new child process which will run the
982 rest of the initialization code, then exit.
984 Detaching a daemon requires the following steps:
988 - close the tty file-descriptors
990 We only want to do the last 2 steps once the daemon is ready to
991 serve requests, i.e. after loading .emacs (initialization).
992 OTOH initialization may start subprocesses (e.g. ispell) and these
993 should be run from the proper process (the one that will end up
994 running as daemon) and with the proper "session id" in order for
995 them to keep working after detaching, so fork and setsid need to be
996 performed before initialization.
998 We want to avoid exiting before the server socket is ready, so
999 use a pipe for synchronization. The parent waits for the child
1000 to close its end of the pipe (using `daemon-initialized')
1002 if (pipe (daemon_pipe
) == -1)
1004 fprintf (stderr
, "Cannot pipe!\n");
1008 #ifndef NS_IMPL_COCOA
1010 fprintf (stderr
, "\nWarning: due to a long standing Gtk+ bug\nhttp://bugzilla.gnome.org/show_bug.cgi?id=85715\n\
1011 Emacs might crash when run in daemon mode and the X11 connection is unexpectedly lost.\n\
1012 Using an Emacs configured with --with-x-toolkit=lucid does not have this problem.\n");
1015 #else /* NS_IMPL_COCOA */
1016 /* Under Cocoa we must do fork+exec as CoreFoundation lib fails in
1017 forked process: http://developer.apple.com/ReleaseNotes/
1018 CoreFoundation/CoreFoundation.html)
1019 We mark being in the exec'd process by a daemon name argument of
1020 form "--daemon=\nFD0,FD1\nNAME" where FD are the pipe file descriptors,
1021 NAME is the original daemon name, if any. */
1022 if (!dname_arg
|| !strchr (dname_arg
, '\n'))
1023 f
= fork (); /* in orig */
1025 f
= 0; /* in exec'd */
1026 #endif /* NS_IMPL_COCOA */
1032 /* Close unused writing end of the pipe. */
1033 close (daemon_pipe
[1]);
1035 /* Just wait for the child to close its end of the pipe. */
1038 retval
= read (daemon_pipe
[0], &buf
, 1);
1040 while (retval
== -1 && errno
== EINTR
);
1044 fprintf (stderr
, "Error reading status from child\n");
1047 else if (retval
== 0)
1049 fprintf (stderr
, "Error: server did not start correctly\n");
1053 close (daemon_pipe
[0]);
1058 fprintf (stderr
, "Cannot fork!\n");
1062 #ifdef NS_IMPL_COCOA
1064 /* In orig process, forked as child, OR in exec'd. */
1065 if (!dname_arg
|| !strchr (dname_arg
, '\n'))
1066 { /* In orig, child: now exec w/special daemon name. */
1069 if (dname_arg
&& strlen (dname_arg
) > 70)
1071 fprintf (stderr
, "daemon: child name too long\n");
1075 sprintf (fdStr
, "--daemon=\n%d,%d\n%s", daemon_pipe
[0],
1076 daemon_pipe
[1], dname_arg
? dname_arg
: "");
1077 argv
[skip_args
] = fdStr
;
1079 execv (argv
[0], argv
);
1080 fprintf (stderr
, "emacs daemon: exec failed: %d\n", errno
);
1084 /* In exec'd: parse special dname into pipe and name info. */
1085 if (!dname_arg
|| !strchr (dname_arg
, '\n')
1086 || strlen (dname_arg
) < 1 || strlen (dname_arg
) > 70)
1088 fprintf (stderr
, "emacs daemon: daemon name absent or too long\n");
1091 dname_arg2
[0] = '\0';
1092 sscanf (dname_arg
, "\n%d,%d\n%s", &(daemon_pipe
[0]), &(daemon_pipe
[1]),
1094 dname_arg
= *dname_arg2
? dname_arg2
: NULL
;
1096 #endif /* NS_IMPL_COCOA */
1099 daemon_name
= xstrdup (dname_arg
);
1100 /* Close unused reading end of the pipe. */
1101 close (daemon_pipe
[0]);
1102 /* Make sure that the used end of the pipe is closed on exec, so
1103 that it is not accessible to programs started from .emacs. */
1104 fcntl (daemon_pipe
[1], F_SETFD
, FD_CLOEXEC
);
1110 fprintf (stderr
, "This platform does not support the -daemon flag.\n");
1115 if (! noninteractive
)
1117 #if defined (USG5) && defined (INTERRUPT_INPUT)
1120 #if defined (HAVE_GTK_AND_PTHREAD) && !defined (SYSTEM_MALLOC) && !defined (DOUG_LEA_MALLOC)
1122 extern void malloc_enable_thread (void);
1124 malloc_enable_thread ();
1131 /* Don't catch SIGHUP if dumping. */
1138 sigblock (sigmask (SIGHUP
));
1139 /* In --batch mode, don't catch SIGHUP if already ignored.
1140 That makes nohup work. */
1141 if (! noninteractive
1142 || signal (SIGHUP
, SIG_IGN
) != SIG_IGN
)
1143 signal (SIGHUP
, fatal_error_signal
);
1144 sigunblock (sigmask (SIGHUP
));
1149 ! noninteractive
|| initialized
1155 /* Don't catch these signals in batch mode if dumping.
1156 On some machines, this sets static data that would make
1157 signal fail to work right when the dumped Emacs is run. */
1158 signal (SIGQUIT
, fatal_error_signal
);
1159 signal (SIGILL
, fatal_error_signal
);
1160 signal (SIGTRAP
, fatal_error_signal
);
1162 add_user_signal (SIGUSR1
, "sigusr1");
1165 add_user_signal (SIGUSR2
, "sigusr2");
1168 signal (SIGABRT
, fatal_error_signal
);
1171 signal (SIGHWE
, fatal_error_signal
);
1174 signal (SIGPRE
, fatal_error_signal
);
1177 signal (SIGORE
, fatal_error_signal
);
1180 signal (SIGUME
, fatal_error_signal
);
1183 signal (SIGDLK
, fatal_error_signal
);
1186 signal (SIGCPULIM
, fatal_error_signal
);
1189 /* This is missing on some systems - OS/2, for example. */
1190 signal (SIGIOT
, fatal_error_signal
);
1193 signal (SIGEMT
, fatal_error_signal
);
1195 signal (SIGFPE
, fatal_error_signal
);
1197 signal (SIGBUS
, fatal_error_signal
);
1199 signal (SIGSEGV
, fatal_error_signal
);
1201 signal (SIGSYS
, fatal_error_signal
);
1203 /* May need special treatment on MS-Windows. See
1204 http://lists.gnu.org/archive/html/emacs-devel/2010-09/msg01062.html
1205 Please update the doc of kill-emacs, kill-emacs-hook, and
1206 NEWS if you change this.
1208 if (noninteractive
) signal (SIGINT
, fatal_error_signal
);
1209 signal (SIGTERM
, fatal_error_signal
);
1211 signal (SIGXCPU
, fatal_error_signal
);
1214 signal (SIGXFSZ
, fatal_error_signal
);
1215 #endif /* SIGXFSZ */
1218 /* This just means available memory is getting low. */
1219 signal (SIGDANGER
, memory_warning_signal
);
1223 /* 20 is SIGCHLD, 21 is SIGTTIN, 22 is SIGTTOU. */
1224 signal (SIGXCPU
, fatal_error_signal
);
1225 signal (SIGIOINT
, fatal_error_signal
);
1226 signal (SIGGRANT
, fatal_error_signal
);
1227 signal (SIGRETRACT
, fatal_error_signal
);
1228 signal (SIGSOUND
, fatal_error_signal
);
1229 signal (SIGMSG
, fatal_error_signal
);
1233 noninteractive1
= noninteractive
;
1235 /* Perform basic initializations (not merely interning symbols). */
1242 init_character_once ();
1243 init_charset_once ();
1244 init_coding_once ();
1245 init_syntax_once (); /* Create standard syntax table. */
1246 init_category_once (); /* Create standard category table. */
1247 /* Must be done before init_buffer. */
1248 init_casetab_once ();
1249 init_buffer_once (); /* Create buffer table and some buffers. */
1250 init_minibuf_once (); /* Create list of minibuffers. */
1251 /* Must precede init_window_once. */
1253 /* Call syms_of_xfaces before init_window_once because that
1254 function creates Vterminal_frame. Termcap frames now use
1255 faces, and the face implementation uses some symbols as
1258 /* XXX syms_of_keyboard uses some symbols in keymap.c. It would
1259 be better to arrange things not to have this dependency. */
1261 /* Call syms_of_keyboard before init_window_once because
1262 keyboard sets up symbols that include some face names that
1263 the X support will want to use. This can happen when
1264 CANNOT_DUMP is defined. */
1265 syms_of_keyboard ();
1267 /* Called before syms_of_fileio, because it sets up Qerror_condition. */
1270 /* Before syms_of_coding to initialize Vgc_cons_threshold. */
1272 /* Before syms_of_coding because it initializes Qcharsetp. */
1274 /* Before init_window_once, because it sets up the
1275 Vcoding_system_hash_table. */
1276 syms_of_coding (); /* This should be after syms_of_fileio. */
1278 init_window_once (); /* Init the window system. */
1279 #ifdef HAVE_WINDOW_SYSTEM
1280 init_fringe_once (); /* Swap bitmaps if necessary. */
1281 #endif /* HAVE_WINDOW_SYSTEM */
1286 if (do_initial_setlocale
)
1289 Vsystem_messages_locale
= Vprevious_system_messages_locale
;
1290 Vsystem_time_locale
= Vprevious_system_time_locale
;
1295 #ifdef CLASH_DETECTION
1299 running_asynch_code
= 0;
1302 = argmatch (argv
, argc
, "-nl", "--no-loadup", 6, NULL
, &skip_args
);
1305 = argmatch (argv
, argc
, "-nsl", "--no-site-lisp", 11, NULL
, &skip_args
);
1308 ns_alloc_autorelease_pool();
1309 if (!noninteractive
)
1311 #ifdef NS_IMPL_COCOA
1312 if (skip_args
< argc
)
1314 /* FIXME: Do the right thing if getenv returns NULL, or if
1316 if (!strncmp(argv
[skip_args
], "-psn", 4))
1319 chdir (getenv ("HOME"));
1321 else if (skip_args
+1 < argc
&& !strncmp(argv
[skip_args
+1], "-psn", 4))
1324 chdir (getenv ("HOME"));
1329 #endif /* HAVE_NS */
1331 #ifdef HAVE_X_WINDOWS
1332 /* Stupid kludge to catch command-line display spec. We can't
1333 handle this argument entirely in window system dependent code
1334 because we don't even know which window system dependent code
1335 to run until we've recognized this argument. */
1337 char *displayname
= 0;
1338 int count_before
= skip_args
;
1340 /* Skip any number of -d options, but only use the last one. */
1343 int count_before_this
= skip_args
;
1345 if (argmatch (argv
, argc
, "-d", "--display", 3, &displayname
, &skip_args
))
1347 else if (argmatch (argv
, argc
, "-display", 0, 3, &displayname
, &skip_args
))
1352 count_before
= count_before_this
;
1355 /* If we have the form --display=NAME,
1356 convert it into -d name.
1357 This requires inserting a new element into argv. */
1358 if (displayname
!= 0 && skip_args
- count_before
== 1)
1360 char **new = (char **) xmalloc (sizeof (char *) * (argc
+ 2));
1363 for (j
= 0; j
< count_before
+ 1; j
++)
1365 new[count_before
+ 1] = (char *) "-d";
1366 new[count_before
+ 2] = displayname
;
1367 for (j
= count_before
+ 2; j
<argc
; j
++)
1368 new[j
+ 1] = argv
[j
];
1372 /* Change --display to -d, when its arg is separate. */
1373 else if (displayname
!= 0 && skip_args
> count_before
1374 && argv
[count_before
+ 1][1] == '-')
1375 argv
[count_before
+ 1] = (char *) "-d";
1379 if (argmatch (argv
, argc
, "-Q", "--quick", 3, NULL
, &skip_args
)
1380 || argmatch (argv
, argc
, "-quick", 0, 2, NULL
, &skip_args
))
1384 /* Don't actually discard this arg. */
1385 skip_args
= count_before
;
1387 #else /* !HAVE_X_WINDOWS */
1390 int count_before
= skip_args
;
1392 if (argmatch (argv
, argc
, "-Q", "--quick", 3, NULL
, &skip_args
)
1393 || argmatch (argv
, argc
, "-quick", 0, 2, NULL
, &skip_args
))
1396 skip_args
= count_before
;
1400 /* argmatch must not be used after here,
1401 except when bulding temacs
1402 because the -d argument has not been skipped in skip_args. */
1405 /* Call early 'cause init_environment needs it. */
1407 /* Set defaults for several environment variables. */
1409 init_environment (argc
, argv
, skip_args
);
1416 /* Initialize environment from registry settings. */
1417 init_environment (argv
);
1418 init_ntproc (); /* must precede init_editfns. */
1428 /* Initialize and GC-protect Vinitial_environment and
1429 Vprocess_environment before set_initial_environment fills them
1432 syms_of_callproc ();
1433 /* egetenv is a pretty low-level facility, which may get called in
1434 many circumstances; it seems flimsy to put off initializing it
1435 until calling init_callproc. Do not do it when dumping. */
1436 if (initialized
|| ((strcmp (argv
[argc
-1], "dump") != 0
1437 && strcmp (argv
[argc
-1], "bootstrap") != 0)))
1438 set_initial_environment ();
1440 /* AIX crashes are reported in system versions 3.2.3 and 3.2.4
1441 if this is not done. Do it after set_global_environment so that we
1442 don't pollute Vglobal_environment. */
1443 /* Setting LANG here will defeat the startup locale processing... */
1448 init_buffer (); /* Init default directory of main buffer. */
1450 init_callproc_1 (); /* Must precede init_cmdargs and init_sys_modes. */
1451 init_cmdargs (argc
, argv
, skip_args
); /* Must precede init_lread. */
1455 /* Erase any pre-dump messages in the message log, to avoid confusion. */
1456 Lisp_Object old_log_max
;
1457 old_log_max
= Vmessage_log_max
;
1458 XSETFASTINT (Vmessage_log_max
, 0);
1459 message_dolog ("", 0, 1, 0);
1460 Vmessage_log_max
= old_log_max
;
1463 init_callproc (); /* Must follow init_cmdargs but not init_sys_modes. */
1466 /* Intern the names of all standard functions and variables;
1467 define standard keys. */
1471 /* The basic levels of Lisp must come first. Note that
1472 syms_of_data and some others have already been called. */
1478 syms_of_floatfns ();
1481 syms_of_bytecode ();
1483 syms_of_casefiddle ();
1485 syms_of_category ();
1487 syms_of_character ();
1494 syms_of_filelock ();
1497 /* syms_of_keymap (); */
1505 syms_of_terminal ();
1511 syms_of_textprop ();
1512 syms_of_composite ();
1515 #endif /* WINDOWSNT */
1519 #ifdef HAVE_WINDOW_SYSTEM
1522 #endif /* HAVE_WINDOW_SYSTEM */
1523 #ifdef HAVE_X_WINDOWS
1528 syms_of_xsettings ();
1535 #endif /* HAVE_X_WINDOWS */
1546 syms_of_w32select ();
1549 #endif /* HAVE_NTGUI */
1555 syms_of_win16select();
1562 syms_of_nsselect ();
1564 #endif /* HAVE_NS */
1571 syms_of_dbusbind ();
1572 #endif /* HAVE_DBUS */
1576 #endif /* WINDOWSNT */
1578 keys_of_casefiddle ();
1581 keys_of_keyboard ();
1587 /* Initialization that must be done even if the global variable
1588 initialized is non zero. */
1590 globals_of_w32fns ();
1591 globals_of_w32menu ();
1592 globals_of_w32select ();
1593 #endif /* HAVE_NTGUI */
1598 init_editfns (); /* init_process uses Voperating_system_release. */
1599 init_process (); /* init_display uses add_keyboard_wait_descriptor. */
1600 init_keyboard (); /* This too must precede init_sys_modes. */
1601 if (!noninteractive
)
1602 init_display (); /* Determine terminal type. Calls init_sys_modes. */
1605 #ifdef HAVE_WINDOW_SYSTEM
1608 #endif /* HAVE_WINDOW_SYSTEM */
1620 /* Handle -l loadup, args passed by Makefile. */
1621 if (argmatch (argv
, argc
, "-l", "--load", 3, &file
, &skip_args
))
1622 Vtop_level
= Fcons (intern_c_string ("load"),
1623 Fcons (build_string (file
), Qnil
));
1624 /* Unless next switch is -nl, load "loadup.el" first thing. */
1626 Vtop_level
= Fcons (intern_c_string ("load"),
1627 Fcons (build_string ("loadup.el"), Qnil
));
1634 /* If the execution TZ happens to be the same as the dump TZ,
1635 change it to some other value and then change it back,
1636 to force the underlying implementation to reload the TZ info.
1637 This is needed on implementations that load TZ info from files,
1638 since the TZ file contents may differ between dump and execution. */
1639 char *tz
= getenv ("TZ");
1640 if (tz
&& !strcmp (tz
, dump_tz
))
1650 /* Set up for profiling. This is known to work on FreeBSD,
1651 GNU/Linux and MinGW. It might work on some other systems too.
1652 Give it a try and tell us if it works on your system. To compile
1653 for profiling, use the configure option --enable-profiling. */
1654 #if defined (__FreeBSD__) || defined (GNU_LINUX) || defined(__MINGW32__)
1658 extern void _mcleanup ();
1660 extern unsigned char etext
asm ("etext");
1664 #ifdef HAVE___EXECUTABLE_START
1665 /* This symbol is defined by GNU ld to the start of the text
1667 extern char __executable_start
[];
1669 extern void safe_bcopy ();
1673 #ifdef HAVE___EXECUTABLE_START
1674 monstartup (__executable_start
, &etext
);
1676 /* This uses safe_bcopy because that function comes first in the
1677 Emacs executable. It might be better to use something that
1678 gives the start of the text segment, but start_of_text is not
1679 defined on all systems now. */
1680 /* FIXME: Does not work on architectures with function
1682 monstartup (safe_bcopy
, &etext
);
1692 #ifdef LOCALTIME_CACHE
1693 /* Some versions of localtime have a bug. They cache the value of the time
1694 zone rather than looking it up every time. Since localtime() is
1695 called to bolt the undumping time into the undumped emacs, this
1696 results in localtime ignoring the TZ environment variable.
1697 This flushes the new TZ value into localtime. */
1699 #endif /* defined (LOCALTIME_CACHE) */
1701 /* Enter editor command loop. This never returns. */
1707 /* Sort the args so we can find the most important ones
1708 at the beginning of argv. */
1710 /* First, here's a table of all the standard options. */
1712 struct standard_args
1715 const char *longname
;
1720 static const struct standard_args standard_args
[] =
1722 { "-version", "--version", 150, 0 },
1723 { "-chdir", "--chdir", 130, 1 },
1724 { "-t", "--terminal", 120, 1 },
1725 { "-nw", "--no-window-system", 110, 0 },
1726 { "-nw", "--no-windows", 110, 0 },
1727 { "-batch", "--batch", 100, 0 },
1728 { "-script", "--script", 100, 1 },
1729 { "-daemon", "--daemon", 99, 0 },
1730 { "-help", "--help", 90, 0 },
1731 { "-nl", "--no-loadup", 70, 0 },
1732 { "-nsl", "--no-site-lisp", 65, 0 },
1733 /* -d must come last before the options handled in startup.el. */
1734 { "-d", "--display", 60, 1 },
1735 { "-display", 0, 60, 1 },
1736 /* Now for the options handled in `command-line' (startup.el). */
1737 /* (Note that to imply -nsl, -Q is partially handled here.) */
1738 { "-Q", "--quick", 55, 0 },
1739 { "-quick", 0, 55, 0 },
1740 { "-q", "--no-init-file", 50, 0 },
1741 { "-no-init-file", 0, 50, 0 },
1742 { "-no-site-file", "--no-site-file", 40, 0 },
1743 { "-u", "--user", 30, 1 },
1744 { "-user", 0, 30, 1 },
1745 { "-debug-init", "--debug-init", 20, 0 },
1746 { "-iconic", "--iconic", 15, 0 },
1747 { "-D", "--basic-display", 12, 0},
1748 { "-basic-display", 0, 12, 0},
1749 { "-nbc", "--no-blinking-cursor", 12, 0 },
1750 /* Now for the options handled in `command-line-1' (startup.el). */
1751 { "-nbi", "--no-bitmap-icon", 10, 0 },
1752 { "-bg", "--background-color", 10, 1 },
1753 { "-background", 0, 10, 1 },
1754 { "-fg", "--foreground-color", 10, 1 },
1755 { "-foreground", 0, 10, 1 },
1756 { "-bd", "--border-color", 10, 1 },
1757 { "-bw", "--border-width", 10, 1 },
1758 { "-ib", "--internal-border", 10, 1 },
1759 { "-ms", "--mouse-color", 10, 1 },
1760 { "-cr", "--cursor-color", 10, 1 },
1761 { "-fn", "--font", 10, 1 },
1762 { "-font", 0, 10, 1 },
1763 { "-fs", "--fullscreen", 10, 0 },
1764 { "-fw", "--fullwidth", 10, 0 },
1765 { "-fh", "--fullheight", 10, 0 },
1766 { "-mm", "--maximized", 10, 0 },
1767 { "-g", "--geometry", 10, 1 },
1768 { "-geometry", 0, 10, 1 },
1769 { "-T", "--title", 10, 1 },
1770 { "-title", 0, 10, 1 },
1771 { "-name", "--name", 10, 1 },
1772 { "-xrm", "--xrm", 10, 1 },
1773 { "-parent-id", "--parent-id", 10, 1 },
1774 { "-r", "--reverse-video", 5, 0 },
1776 { "-reverse", 0, 5, 0 },
1777 { "-hb", "--horizontal-scroll-bars", 5, 0 },
1778 { "-vb", "--vertical-scroll-bars", 5, 0 },
1779 { "-color", "--color", 5, 0},
1780 { "-no-splash", "--no-splash", 3, 0 },
1781 { "-no-desktop", "--no-desktop", 3, 0 },
1783 { "-NSAutoLaunch", 0, 5, 1 },
1784 { "-NXAutoLaunch", 0, 5, 1 },
1785 { "-disable-font-backend", "--disable-font-backend", 65, 0 },
1786 { "-_NSMachLaunch", 0, 85, 1 },
1787 { "-MachLaunch", 0, 85, 1 },
1788 { "-macosx", 0, 85, 0 },
1789 { "-NSHost", 0, 85, 1 },
1791 /* These have the same priority as ordinary file name args,
1792 so they are not reordered with respect to those. */
1793 { "-L", "--directory", 0, 1 },
1794 { "-directory", 0, 0, 1 },
1795 { "-l", "--load", 0, 1 },
1796 { "-load", 0, 0, 1 },
1797 /* This has no longname, because using --scriptload confuses sort_args,
1798 because then the --script long option seems to match twice; ie
1799 you can't have a long option which is a prefix of another long
1800 option. In any case, this is entirely an internal option. */
1801 { "-scriptload", NULL
, 0, 1 },
1802 { "-f", "--funcall", 0, 1 },
1803 { "-funcall", 0, 0, 1 },
1804 { "-eval", "--eval", 0, 1 },
1805 { "-execute", "--execute", 0, 1 },
1806 { "-find-file", "--find-file", 0, 1 },
1807 { "-visit", "--visit", 0, 1 },
1808 { "-file", "--file", 0, 1 },
1809 { "-insert", "--insert", 0, 1 },
1811 { "-NXOpen", 0, 0, 1 },
1812 { "-NXOpenTemp", 0, 0, 1 },
1813 { "-NSOpen", 0, 0, 1 },
1814 { "-NSOpenTemp", 0, 0, 1 },
1815 { "-GSFilePath", 0, 0, 1 },
1817 /* This should be processed after ordinary file name args and the like. */
1818 { "-kill", "--kill", -10, 0 },
1821 /* Reorder the elements of ARGV (assumed to have ARGC elements)
1822 so that the highest priority ones come first.
1823 Do not change the order of elements of equal priority.
1824 If an option takes an argument, keep it and its argument together.
1826 If an option that takes no argument appears more
1827 than once, eliminate all but one copy of it. */
1830 sort_args (int argc
, char **argv
)
1832 char **new = (char **) xmalloc (sizeof (char *) * argc
);
1833 /* For each element of argv,
1834 the corresponding element of options is:
1835 0 for an option that takes no arguments,
1836 1 for an option that takes one argument, etc.
1837 -1 for an ordinary non-option argument. */
1838 int *options
= (int *) xmalloc (sizeof (int) * argc
);
1839 int *priority
= (int *) xmalloc (sizeof (int) * argc
);
1841 int incoming_used
= 1;
1845 /* Categorize all the options,
1846 and figure out which argv elts are option arguments. */
1847 for (from
= 1; from
< argc
; from
++)
1851 if (argv
[from
][0] == '-')
1855 /* If we have found "--", don't consider
1856 any more arguments as options. */
1857 if (argv
[from
][1] == '-' && argv
[from
][2] == 0)
1859 /* Leave the "--", and everything following it, at the end. */
1860 for (; from
< argc
; from
++)
1862 priority
[from
] = -100;
1868 /* Look for a match with a known old-fashioned option. */
1869 for (i
= 0; i
< sizeof (standard_args
) / sizeof (standard_args
[0]); i
++)
1870 if (!strcmp (argv
[from
], standard_args
[i
].name
))
1872 options
[from
] = standard_args
[i
].nargs
;
1873 priority
[from
] = standard_args
[i
].priority
;
1874 if (from
+ standard_args
[i
].nargs
>= argc
)
1875 fatal ("Option `%s' requires an argument\n", argv
[from
]);
1876 from
+= standard_args
[i
].nargs
;
1880 /* Look for a match with a known long option.
1881 MATCH is -1 if no match so far, -2 if two or more matches so far,
1882 >= 0 (the table index of the match) if just one match so far. */
1883 if (argv
[from
][1] == '-')
1885 char const *equals
= strchr (argv
[from
], '=');
1887 equals
? equals
- argv
[from
] : strlen (argv
[from
]);
1892 i
< sizeof (standard_args
) / sizeof (standard_args
[0]); i
++)
1893 if (standard_args
[i
].longname
1894 && !strncmp (argv
[from
], standard_args
[i
].longname
,
1903 /* If we found exactly one match, use that. */
1906 options
[from
] = standard_args
[match
].nargs
;
1907 priority
[from
] = standard_args
[match
].priority
;
1908 /* If --OPTION=VALUE syntax is used,
1909 this option uses just one argv element. */
1912 if (from
+ options
[from
] >= argc
)
1913 fatal ("Option `%s' requires an argument\n", argv
[from
]);
1914 from
+= options
[from
];
1916 /* FIXME When match < 0, shouldn't there be some error,
1917 or at least indication to the user that there was a
1924 /* Copy the arguments, in order of decreasing priority, to NEW. */
1926 while (incoming_used
< argc
)
1929 int best_priority
= -9999;
1931 /* Find the highest priority remaining option.
1932 If several have equal priority, take the first of them. */
1933 for (from
= 1; from
< argc
; from
++)
1935 if (argv
[from
] != 0 && priority
[from
] > best_priority
)
1937 best_priority
= priority
[from
];
1940 /* Skip option arguments--they are tied to the options. */
1941 if (options
[from
] > 0)
1942 from
+= options
[from
];
1948 /* Copy the highest priority remaining option, with its args, to NEW.
1949 Unless it is a duplicate of the previous one. */
1950 if (! (options
[best
] == 0
1951 && ! strcmp (new[to
- 1], argv
[best
])))
1953 new[to
++] = argv
[best
];
1954 for (i
= 0; i
< options
[best
]; i
++)
1955 new[to
++] = argv
[best
+ i
+ 1];
1958 incoming_used
+= 1 + (options
[best
] > 0 ? options
[best
] : 0);
1960 /* Clear out this option in ARGV. */
1962 for (i
= 0; i
< options
[best
]; i
++)
1963 argv
[best
+ i
+ 1] = 0;
1966 /* If duplicate options were deleted, fill up extra space with null ptrs. */
1970 memcpy (argv
, new, sizeof (char *) * argc
);
1977 DEFUN ("kill-emacs", Fkill_emacs
, Skill_emacs
, 0, 1, "P",
1978 doc
: /* Exit the Emacs job and kill it.
1979 If ARG is an integer, return ARG as the exit program code.
1980 If ARG is a string, stuff it as keyboard input.
1982 This function is called upon receipt of the signals SIGTERM
1983 or SIGHUP, and upon SIGINT in batch mode.
1985 The value of `kill-emacs-hook', if not void,
1986 is a list of functions (of no args),
1987 all of which are called before Emacs is actually killed. */)
1990 struct gcpro gcpro1
;
1998 hook
= intern ("kill-emacs-hook");
1999 Frun_hooks (1, &hook
);
2003 #ifdef HAVE_X_WINDOWS
2004 /* Transfer any clipboards we own to the clipboard manager. */
2005 x_clipboard_manager_save_all ();
2008 shut_down_emacs (0, 0, STRINGP (arg
) ? arg
: Qnil
);
2010 /* If we have an auto-save list file,
2011 kill it because we are exiting Emacs deliberately (not crashing).
2012 Do it after shut_down_emacs, which does an auto-save. */
2013 if (STRINGP (Vauto_save_list_file_name
))
2014 unlink (SSDATA (Vauto_save_list_file_name
));
2016 exit (INTEGERP (arg
) ? XINT (arg
) : EXIT_SUCCESS
);
2020 /* Perform an orderly shutdown of Emacs. Autosave any modified
2021 buffers, kill any child processes, clean up the terminal modes (if
2022 we're in the foreground), and other stuff like that. Don't perform
2023 any redisplay; this may be called when Emacs is shutting down in
2024 the background, or after its X connection has died.
2026 If SIG is a signal number, print a message for it.
2028 This is called by fatal signal handlers, X protocol error handlers,
2032 shut_down_emacs (int sig
, int no_x
, Lisp_Object stuff
)
2034 /* Prevent running of hooks from now on. */
2037 /* Don't update display from now on. */
2038 Vinhibit_redisplay
= Qt
;
2040 /* If we are controlling the terminal, reset terminal modes. */
2043 int pgrp
= EMACS_GETPGRP (0);
2044 int tpgrp
= tcgetpgrp (0);
2045 if ((tpgrp
!= -1) && tpgrp
== pgrp
)
2047 reset_all_sys_modes ();
2048 if (sig
&& sig
!= SIGTERM
)
2049 fprintf (stderr
, "Fatal error (%d)", sig
);
2054 reset_all_sys_modes ();
2057 stuff_buffered_input (stuff
);
2059 inhibit_sentinels
= 1;
2060 kill_buffer_processes (Qnil
);
2061 Fdo_auto_save (Qt
, Qnil
);
2063 #ifdef CLASH_DETECTION
2064 unlock_all_files ();
2067 #if 0 /* This triggers a bug in XCloseDisplay and is not needed. */
2068 #ifdef HAVE_X_WINDOWS
2069 /* It's not safe to call intern here. Maybe we are crashing. */
2070 if (!noninteractive
&& SYMBOLP (Vinitial_window_system
)
2071 && SCHARS (SYMBOL_NAME (Vinitial_window_system
)) == 1
2072 && SREF (SYMBOL_NAME (Vinitial_window_system
), 0) == 'x'
2074 Fx_close_current_connection ();
2075 #endif /* HAVE_X_WINDOWS */
2079 /* There is a tendency for a SIGIO signal to arrive within exit,
2080 and cause a SIGHUP because the input descriptor is already closed. */
2082 signal (SIGIO
, SIG_IGN
);
2089 /* Do this only if terminating normally, we want glyph matrices
2090 etc. in a core dump. */
2091 if (sig
== 0 || sig
== SIGTERM
)
2093 check_glyph_memory ();
2094 check_message_stack ();
2102 ns_term_shutdown (sig
);
2112 DEFUN ("dump-emacs", Fdump_emacs
, Sdump_emacs
, 2, 2, 0,
2113 doc
: /* Dump current state of Emacs into executable file FILENAME.
2114 Take symbols from SYMFILE (presumably the file you executed to run Emacs).
2115 This is used in the file `loadup.el' when building Emacs.
2117 You must run Emacs in batch mode in order to dump it. */)
2118 (Lisp_Object filename
, Lisp_Object symfile
)
2122 int count
= SPECPDL_INDEX ();
2126 if (! noninteractive
)
2127 error ("Dumping Emacs works only in batch mode");
2131 /* Warn if the gap between BSS end and heap start is larger than this. */
2132 # define MAX_HEAP_BSS_DIFF (1024*1024)
2134 if (heap_bss_diff
> MAX_HEAP_BSS_DIFF
)
2136 fprintf (stderr
, "**************************************************\n");
2137 fprintf (stderr
, "Warning: Your system has a gap between BSS and the\n");
2138 fprintf (stderr
, "heap (%lu bytes). This usually means that exec-shield\n",
2140 fprintf (stderr
, "or something similar is in effect. The dump may\n");
2141 fprintf (stderr
, "fail because of this. See the section about\n");
2142 fprintf (stderr
, "exec-shield in etc/PROBLEMS for more information.\n");
2143 fprintf (stderr
, "**************************************************\n");
2145 #endif /* GNU_LINUX */
2147 /* Bind `command-line-processed' to nil before dumping,
2148 so that the dumped Emacs will process its command line
2149 and set up to work with X windows if appropriate. */
2150 symbol
= intern ("command-line-processed");
2151 specbind (symbol
, Qnil
);
2153 CHECK_STRING (filename
);
2154 filename
= Fexpand_file_name (filename
, Qnil
);
2155 if (!NILP (symfile
))
2157 CHECK_STRING (symfile
);
2158 if (SCHARS (symfile
))
2159 symfile
= Fexpand_file_name (symfile
, Qnil
);
2163 Vpurify_flag
= Qnil
;
2166 set_time_zone_rule (dump_tz
);
2167 #ifndef LOCALTIME_CACHE
2168 /* Force a tz reload, since set_time_zone_rule doesn't. */
2174 /* Tell malloc where start of impure now is. */
2175 /* Also arrange for warnings when nearly out of space. */
2176 #ifndef SYSTEM_MALLOC
2178 /* On Windows, this was done before dumping, and that once suffices.
2179 Meanwhile, my_edata is not valid on Windows. */
2181 extern char my_edata
[];
2182 memory_warnings (my_edata
, malloc_warning
);
2184 #endif /* not WINDOWSNT */
2185 #if defined (HAVE_GTK_AND_PTHREAD) && !defined SYNC_INPUT
2186 /* Pthread may call malloc before main, and then we will get an endless
2187 loop, because pthread_self (see alloc.c) calls malloc the first time
2188 it is called on some systems. */
2189 reset_malloc_hooks ();
2191 #endif /* not SYSTEM_MALLOC */
2192 #ifdef DOUG_LEA_MALLOC
2193 malloc_state_ptr
= malloc_get_state ();
2196 #ifdef USE_MMAP_FOR_BUFFERS
2199 unexec (SSDATA (filename
), !NILP (symfile
) ? SSDATA (symfile
) : 0);
2200 #ifdef USE_MMAP_FOR_BUFFERS
2203 #ifdef DOUG_LEA_MALLOC
2204 free (malloc_state_ptr
);
2209 return unbind_to (count
, Qnil
);
2212 #endif /* not CANNOT_DUMP */
2215 /* Recover from setlocale (LC_ALL, ""). */
2219 /* The Emacs Lisp reader needs LC_NUMERIC to be "C",
2220 so that numbers are read and printed properly for Emacs Lisp. */
2221 setlocale (LC_NUMERIC
, "C");
2224 /* Set system locale CATEGORY, with previous locale *PLOCALE, to
2227 synchronize_locale (int category
, Lisp_Object
*plocale
, Lisp_Object desired_locale
)
2229 if (! EQ (*plocale
, desired_locale
))
2231 *plocale
= desired_locale
;
2232 setlocale (category
, (STRINGP (desired_locale
)
2233 ? SSDATA (desired_locale
)
2238 /* Set system time locale to match Vsystem_time_locale, if possible. */
2240 synchronize_system_time_locale (void)
2242 synchronize_locale (LC_TIME
, &Vprevious_system_time_locale
,
2243 Vsystem_time_locale
);
2246 /* Set system messages locale to match Vsystem_messages_locale, if
2249 synchronize_system_messages_locale (void)
2252 synchronize_locale (LC_MESSAGES
, &Vprevious_system_messages_locale
,
2253 Vsystem_messages_locale
);
2256 #endif /* HAVE_SETLOCALE */
2263 decode_env_path (const char *evarname
, const char *defalt
)
2265 const char *path
, *p
;
2266 Lisp_Object lpath
, element
, tem
;
2268 /* It's okay to use getenv here, because this function is only used
2269 to initialize variables when Emacs starts up, and isn't called
2272 path
= getenv (evarname
);
2278 /* Ensure values from the environment use the proper directory separator. */
2281 char *path_copy
= alloca (strlen (path
) + 1);
2282 strcpy (path_copy
, path
);
2283 dostounix_filename (path_copy
);
2290 p
= strchr (path
, SEPCHAR
);
2292 p
= path
+ strlen (path
);
2293 element
= (p
- path
? make_string (path
, p
- path
)
2294 : build_string ("."));
2296 /* Add /: to the front of the name
2297 if it would otherwise be treated as magic. */
2298 tem
= Ffind_file_name_handler (element
, Qt
);
2300 /* However, if the handler says "I'm safe",
2301 don't bother adding /:. */
2305 prop
= Fget (tem
, intern ("safe-magic"));
2311 element
= concat2 (build_string ("/:"), element
);
2313 lpath
= Fcons (element
, lpath
);
2319 return Fnreverse (lpath
);
2322 DEFUN ("daemonp", Fdaemonp
, Sdaemonp
, 0, 0, 0,
2323 doc
: /* Return non-nil if the current emacs process is a daemon.
2324 If the daemon was given a name argument, return that name. */)
2329 return build_string (daemon_name
);
2336 DEFUN ("daemon-initialized", Fdaemon_initialized
, Sdaemon_initialized
, 0, 0, 0,
2337 doc
: /* Mark the Emacs daemon as being initialized.
2338 This finishes the daemonization process by doing the other half of detaching
2339 from the parent process and its tty file descriptors. */)
2346 error ("This function can only be called if emacs is run as a daemon");
2348 if (daemon_pipe
[1] < 0)
2349 error ("The daemon has already been initialized");
2351 if (NILP (Vafter_init_time
))
2352 error ("This function can only be called after loading the init files");
2354 /* Get rid of stdin, stdout and stderr. */
2355 nfd
= open ("/dev/null", O_RDWR
);
2357 err
|= dup2 (nfd
, 0) < 0;
2358 err
|= dup2 (nfd
, 1) < 0;
2359 err
|= dup2 (nfd
, 2) < 0;
2360 err
|= close (nfd
) != 0;
2362 /* Closing the pipe will notify the parent that it can exit.
2363 FIXME: In case some other process inherited the pipe, closing it here
2364 won't notify the parent because it's still open elsewhere, so we
2365 additionally send a byte, just to make sure the parent really exits.
2366 Instead, we should probably close the pipe in start-process and
2367 call-process to make sure the pipe is never inherited by
2369 err
|= write (daemon_pipe
[1], "\n", 1) < 0;
2370 err
|= close (daemon_pipe
[1]) != 0;
2371 /* Set it to an invalid value so we know we've already run this function. */
2372 daemon_pipe
[1] = -1;
2375 error ("I/O error during daemon initialization");
2380 syms_of_emacs (void)
2382 DEFSYM (Qfile_name_handler_alist
, "file-name-handler-alist");
2383 DEFSYM (Qrisky_local_variable
, "risky-local-variable");
2386 defsubr (&Sdump_emacs
);
2389 defsubr (&Skill_emacs
);
2391 defsubr (&Sinvocation_name
);
2392 defsubr (&Sinvocation_directory
);
2393 defsubr (&Sdaemonp
);
2394 defsubr (&Sdaemon_initialized
);
2396 DEFVAR_LISP ("command-line-args", Vcommand_line_args
,
2397 doc
: /* Args passed by shell to Emacs, as a list of strings.
2398 Many arguments are deleted from the list as they are processed. */);
2400 DEFVAR_LISP ("system-type", Vsystem_type
,
2401 doc
: /* The value is a symbol indicating the type of operating system you are using.
2403 `gnu' compiled for a GNU Hurd system.
2404 `gnu/linux' compiled for a GNU/Linux system.
2405 `gnu/kfreebsd' compiled for a GNU system with a FreeBSD kernel.
2406 `darwin' compiled for Darwin (GNU-Darwin, Mac OS X, ...).
2407 `ms-dos' compiled as an MS-DOS application.
2408 `windows-nt' compiled as a native W32 application.
2409 `cygwin' compiled using the Cygwin library.
2410 Anything else (in Emacs 24.1, the possibilities are: aix, berkeley-unix,
2411 hpux, irix, usg-unix-v) indicates some sort of Unix system. */);
2412 Vsystem_type
= intern_c_string (SYSTEM_TYPE
);
2413 /* The above values are from SYSTEM_TYPE in include files under src/s. */
2415 DEFVAR_LISP ("system-configuration", Vsystem_configuration
,
2416 doc
: /* Value is string indicating configuration Emacs was built for.
2417 On MS-Windows, the value reflects the OS flavor and version on which
2418 Emacs is running. */);
2419 Vsystem_configuration
= build_string (EMACS_CONFIGURATION
);
2421 DEFVAR_LISP ("system-configuration-options", Vsystem_configuration_options
,
2422 doc
: /* String containing the configuration options Emacs was built with. */);
2423 Vsystem_configuration_options
= build_string (EMACS_CONFIG_OPTIONS
);
2425 DEFVAR_BOOL ("noninteractive", noninteractive1
,
2426 doc
: /* Non-nil means Emacs is running without interactive terminal. */);
2428 DEFVAR_LISP ("kill-emacs-hook", Vkill_emacs_hook
,
2429 doc
: /* Hook to be run when `kill-emacs' is called.
2430 Since `kill-emacs' may be invoked when the terminal is disconnected (or
2431 in other similar situations), functions placed on this hook should not
2432 expect to be able to interact with the user. To ask for confirmation,
2433 see `kill-emacs-query-functions' instead.
2435 Before Emacs 24.1, the hook was not run in batch mode, i.e., if
2436 `noninteractive' was non-nil. */);
2437 Vkill_emacs_hook
= Qnil
;
2439 DEFVAR_LISP ("path-separator", Vpath_separator
,
2440 doc
: /* String containing the character that separates directories in
2441 search paths, such as PATH and other similar environment variables. */);
2444 Vpath_separator
= make_string (&c
, 1);
2447 DEFVAR_LISP ("invocation-name", Vinvocation_name
,
2448 doc
: /* The program name that was used to run Emacs.
2449 Any directory names are omitted. */);
2451 DEFVAR_LISP ("invocation-directory", Vinvocation_directory
,
2452 doc
: /* The directory in which the Emacs executable was found, to run it.
2453 The value is nil if that directory's name is not known. */);
2455 DEFVAR_LISP ("installation-directory", Vinstallation_directory
,
2456 doc
: /* A directory within which to look for the `lib-src' and `etc' directories.
2457 This is non-nil when we can't find those directories in their standard
2458 installed locations, but we can find them near where the Emacs executable
2460 Vinstallation_directory
= Qnil
;
2462 DEFVAR_LISP ("system-messages-locale", Vsystem_messages_locale
,
2463 doc
: /* System locale for messages. */);
2464 Vsystem_messages_locale
= Qnil
;
2466 DEFVAR_LISP ("previous-system-messages-locale",
2467 Vprevious_system_messages_locale
,
2468 doc
: /* Most recently used system locale for messages. */);
2469 Vprevious_system_messages_locale
= Qnil
;
2471 DEFVAR_LISP ("system-time-locale", Vsystem_time_locale
,
2472 doc
: /* System locale for time. */);
2473 Vsystem_time_locale
= Qnil
;
2475 DEFVAR_LISP ("previous-system-time-locale", Vprevious_system_time_locale
,
2476 doc
: /* Most recently used system locale for time. */);
2477 Vprevious_system_time_locale
= Qnil
;
2479 DEFVAR_LISP ("before-init-time", Vbefore_init_time
,
2480 doc
: /* Value of `current-time' before Emacs begins initialization. */);
2481 Vbefore_init_time
= Qnil
;
2483 DEFVAR_LISP ("after-init-time", Vafter_init_time
,
2484 doc
: /* Value of `current-time' after loading the init files.
2485 This is nil during initialization. */);
2486 Vafter_init_time
= Qnil
;
2488 DEFVAR_BOOL ("inhibit-x-resources", inhibit_x_resources
,
2489 doc
: /* If non-nil, X resources, Windows Registry settings, and NS defaults are not used. */);
2490 inhibit_x_resources
= 0;
2492 DEFVAR_LISP ("emacs-copyright", Vemacs_copyright
,
2493 doc
: /* Short copyright string for this version of Emacs. */);
2494 Vemacs_copyright
= build_string (emacs_copyright
);
2496 DEFVAR_LISP ("emacs-version", Vemacs_version
,
2497 doc
: /* Version numbers of this version of Emacs. */);
2498 Vemacs_version
= build_string (emacs_version
);
2500 DEFVAR_LISP ("dynamic-library-alist", Vdynamic_library_alist
,
2501 doc
: /* Alist of dynamic libraries vs external files implementing them.
2502 Each element is a list (LIBRARY FILE...), where the car is a symbol
2503 representing a supported external library, and the rest are strings giving
2504 alternate filenames for that library.
2506 Emacs tries to load the library from the files in the order they appear on
2507 the list; if none is loaded, the running session of Emacs won't have access
2510 Note that image types `pbm' and `xbm' do not need entries in this variable
2511 because they do not depend on external libraries and are always available.
2513 Also note that this is not a generic facility for accessing external
2514 libraries; only those already known by Emacs will be loaded. */);
2515 Vdynamic_library_alist
= Qnil
;
2516 Fput (intern_c_string ("dynamic-library-alist"), Qrisky_local_variable
, Qt
);
2518 /* Make sure IS_DAEMON starts up as false. */