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
;
174 /* The gap between BSS end and heap start as far as we can tell. */
175 static uprintmax_t heap_bss_diff
;
178 /* Nonzero means running Emacs without interactive terminal. */
181 /* Nonzero means remove site-lisp directories from load-path. */
184 /* Name for the server started by the daemon.*/
185 static char *daemon_name
;
187 /* Pipe used to send exit notification to the daemon parent at
191 /* Save argv and argc. */
195 static void sort_args (int argc
, char **argv
);
196 static void syms_of_emacs (void);
198 /* MSVC needs each string be shorter than 2048 bytes, so the usage
199 strings below are split to not overflow this limit. */
201 Usage: %s [OPTION-OR-FILENAME]...\n\
203 Run Emacs, the extensible, customizable, self-documenting real-time\n\
204 display editor. The recommended way to start Emacs for normal editing\n\
205 is with no options at all.\n\
207 Run M-x info RET m emacs RET m emacs invocation RET inside Emacs to\n\
208 read the main documentation for these command-line arguments.\n\
210 Initialization options:\n\
212 --batch do not do interactive display; implies -q\n\
213 --chdir DIR change to directory DIR\n\
214 --daemon start a server in the background\n\
215 --debug-init enable Emacs Lisp debugger for init file\n\
216 --display, -d DISPLAY use X server DISPLAY\n\
217 --no-desktop do not load a saved desktop\n\
218 --no-init-file, -q load neither ~/.emacs nor default.el\n\
219 --no-shared-memory, -nl do not use shared memory\n\
220 --no-site-file do not load site-start.el\n\
221 --no-site-lisp, -nsl do not add site-lisp directories to load-path\n\
222 --no-splash do not display a splash screen on startup\n\
223 --no-window-system, -nw do not communicate with X, ignoring $DISPLAY\n\
224 --quick, -Q equivalent to:\n\
225 -q --no-site-file --no-site-lisp --no-splash\n\
226 --script FILE run FILE as an Emacs Lisp script\n\
227 --terminal, -t DEVICE use DEVICE for terminal I/O\n\
228 --user, -u USER load ~USER/.emacs instead of your own\n\
234 FILE visit FILE using find-file\n\
235 +LINE go to line LINE in next FILE\n\
236 +LINE:COLUMN go to line LINE, column COLUMN, in next FILE\n\
237 --directory, -L DIR add DIR to variable load-path\n\
238 --eval EXPR evaluate Emacs Lisp expression EXPR\n\
239 --execute EXPR evaluate Emacs Lisp expression EXPR\n\
240 --file FILE visit FILE using find-file\n\
241 --find-file FILE visit FILE using find-file\n\
242 --funcall, -f FUNC call Emacs Lisp function FUNC with no arguments\n\
243 --insert FILE insert contents of FILE into current buffer\n\
244 --kill exit without asking for confirmation\n\
245 --load, -l FILE load Emacs Lisp FILE using the load function\n\
246 --visit FILE visit FILE using find-file\n\
252 --background-color, -bg COLOR window background color\n\
253 --basic-display, -D disable many display features;\n\
254 used for debugging Emacs\n\
255 --border-color, -bd COLOR main border color\n\
256 --border-width, -bw WIDTH width of main border\n\
257 --color, --color=MODE override color mode for character terminals;\n\
258 MODE defaults to `auto', and\n\
259 can also be `never', `always',\n\
260 or a mode name like `ansi8'\n\
261 --cursor-color, -cr COLOR color of the Emacs cursor indicating point\n\
262 --font, -fn FONT default font; must be fixed-width\n\
263 --foreground-color, -fg COLOR window foreground color\n\
264 --fullheight, -fh make the first frame high as the screen\n\
265 --fullscreen, -fs make the first frame fullscreen\n\
266 --fullwidth, -fw make the first frame wide as the screen\n\
267 --maximized, -mm make the first frame maximized\n\
268 --geometry, -g GEOMETRY window geometry\n\
269 --no-bitmap-icon, -nbi do not use picture of gnu for Emacs icon\n\
270 --iconic start Emacs in iconified state\n\
271 --internal-border, -ib WIDTH width between text and main border\n\
272 --line-spacing, -lsp PIXELS additional space to put between lines\n\
273 --mouse-color, -ms COLOR mouse cursor color in Emacs window\n\
274 --name NAME title for initial Emacs frame\n\
275 --no-blinking-cursor, -nbc disable blinking cursor\n\
276 --reverse-video, -r, -rv switch foreground and background\n\
277 --title, -T TITLE title for initial Emacs frame\n\
278 --vertical-scroll-bars, -vb enable vertical scroll bars\n\
279 --xrm XRESOURCES set additional X resources\n\
280 --parent-id XID set parent window\n\
281 --help display this help and exit\n\
282 --version output version information and exit\n\
286 You can generally also specify long option names with a single -; for\n\
287 example, -batch as well as --batch. You can use any unambiguous\n\
288 abbreviation for a --option.\n\
290 Various environment variables and window system resources also affect\n\
291 Emacs' operation. See the main documentation.\n\
293 Report bugs to bug-gnu-emacs@gnu.org. First, please see the Bugs\n\
294 section of the Emacs manual or the file BUGS.\n"
297 /* Signal code for the fatal signal that was received. */
298 static int fatal_error_code
;
300 /* Nonzero if handling a fatal error already. */
301 int fatal_error_in_progress
;
303 /* If non-null, call this function from fatal_error_signal before
304 committing suicide. */
306 static void (*fatal_error_signal_hook
) (void);
308 #ifdef FORWARD_SIGNAL_TO_MAIN_THREAD
309 /* When compiled with GTK and running under Gnome,
310 multiple threads may be created. Keep track of our main
311 thread to make sure signals are delivered to it (see syssignal.h). */
313 pthread_t main_thread
;
317 /* Handle bus errors, invalid instruction, etc. */
318 #ifndef FLOAT_CATCH_SIGILL
322 fatal_error_signal (int sig
)
324 SIGNAL_THREAD_CHECK (sig
);
325 fatal_error_code
= sig
;
326 signal (sig
, SIG_DFL
);
328 TOTALLY_UNBLOCK_INPUT
;
330 /* If fatal error occurs in code below, avoid infinite recursion. */
331 if (! fatal_error_in_progress
)
333 fatal_error_in_progress
= 1;
335 if (sig
== SIGTERM
|| sig
== SIGHUP
|| sig
== SIGINT
)
336 Fkill_emacs (make_number (sig
));
338 shut_down_emacs (sig
, 0, Qnil
);
341 /* Signal the same code; this time it will really be fatal.
342 Remember that since we're in a signal handler, the signal we're
343 going to send is probably blocked, so we have to unblock it if we
344 want to really receive it. */
346 sigunblock (sigmask (fatal_error_code
));
349 if (fatal_error_signal_hook
)
350 fatal_error_signal_hook ();
352 kill (getpid (), fatal_error_code
);
357 /* Handler for SIGDANGER. */
359 memory_warning_signal (int sig
)
361 signal (sig
, memory_warning_signal
);
362 SIGNAL_THREAD_CHECK (sig
);
364 malloc_warning ("Operating system warns that virtual memory is running low.\n");
366 /* It might be unsafe to call do_auto_save now. */
367 force_auto_save_soon ();
371 /* We define abort, rather than using it from the library,
372 so that GDB can return from a breakpoint here.
373 MSDOS has its own definition in msdos.c. */
375 #if ! defined (DOS_NT) && ! defined (NO_ABORT)
380 kill (getpid (), SIGABRT
);
381 /* This shouldn't be executed, but it prevents a warning. */
387 /* Code for dealing with Lisp access to the Unix command line. */
390 init_cmdargs (int argc
, char **argv
, int skip_args
)
393 Lisp_Object name
, dir
, handler
;
394 int count
= SPECPDL_INDEX ();
395 Lisp_Object raw_name
;
400 raw_name
= build_string (argv
[0]);
402 /* Add /: to the front of the name
403 if it would otherwise be treated as magic. */
404 handler
= Ffind_file_name_handler (raw_name
, Qt
);
405 if (! NILP (handler
))
406 raw_name
= concat2 (build_string ("/:"), raw_name
);
408 Vinvocation_name
= Ffile_name_nondirectory (raw_name
);
409 Vinvocation_directory
= Ffile_name_directory (raw_name
);
411 /* If we got no directory in argv[0], search PATH to find where
412 Emacs actually came from. */
413 if (NILP (Vinvocation_directory
))
416 int yes
= openp (Vexec_path
, Vinvocation_name
,
417 Vexec_suffixes
, &found
, make_number (X_OK
));
420 /* Add /: to the front of the name
421 if it would otherwise be treated as magic. */
422 handler
= Ffind_file_name_handler (found
, Qt
);
423 if (! NILP (handler
))
424 found
= concat2 (build_string ("/:"), found
);
425 Vinvocation_directory
= Ffile_name_directory (found
);
429 if (!NILP (Vinvocation_directory
)
430 && NILP (Ffile_name_absolute_p (Vinvocation_directory
)))
431 /* Emacs was started with relative path, like ./emacs.
433 Vinvocation_directory
= Fexpand_file_name (Vinvocation_directory
, Qnil
);
435 Vinstallation_directory
= Qnil
;
437 if (!NILP (Vinvocation_directory
))
439 dir
= Vinvocation_directory
;
440 name
= Fexpand_file_name (Vinvocation_name
, dir
);
443 Lisp_Object tem
, lib_src_exists
;
444 Lisp_Object etc_exists
, info_exists
;
446 /* See if dir contains subdirs for use by Emacs.
447 Check for the ones that would exist in a build directory,
448 not including lisp and info. */
449 tem
= Fexpand_file_name (build_string ("lib-src"), dir
);
450 lib_src_exists
= Ffile_exists_p (tem
);
453 /* MSDOS installations frequently remove lib-src, but we still
454 must set installation-directory, or else info won't find
455 its files (it uses the value of installation-directory). */
456 tem
= Fexpand_file_name (build_string ("info"), dir
);
457 info_exists
= Ffile_exists_p (tem
);
462 if (!NILP (lib_src_exists
) || !NILP (info_exists
))
464 tem
= Fexpand_file_name (build_string ("etc"), dir
);
465 etc_exists
= Ffile_exists_p (tem
);
466 if (!NILP (etc_exists
))
468 Vinstallation_directory
469 = Ffile_name_as_directory (dir
);
474 /* See if dir's parent contains those subdirs. */
475 tem
= Fexpand_file_name (build_string ("../lib-src"), dir
);
476 lib_src_exists
= Ffile_exists_p (tem
);
480 /* See the MSDOS commentary above. */
481 tem
= Fexpand_file_name (build_string ("../info"), dir
);
482 info_exists
= Ffile_exists_p (tem
);
487 if (!NILP (lib_src_exists
) || !NILP (info_exists
))
489 tem
= Fexpand_file_name (build_string ("../etc"), dir
);
490 etc_exists
= Ffile_exists_p (tem
);
491 if (!NILP (etc_exists
))
493 tem
= Fexpand_file_name (build_string (".."), dir
);
494 Vinstallation_directory
495 = Ffile_name_as_directory (tem
);
500 /* If the Emacs executable is actually a link,
501 next try the dir that the link points into. */
502 tem
= Ffile_symlink_p (name
);
505 name
= Fexpand_file_name (tem
, dir
);
506 dir
= Ffile_name_directory (name
);
513 Vcommand_line_args
= Qnil
;
515 for (i
= argc
- 1; i
>= 0; i
--)
517 if (i
== 0 || i
> skip_args
)
518 /* For the moment, we keep arguments as is in unibyte strings.
519 They are decoded in the function command-line after we know
520 locale-coding-system. */
522 = Fcons (make_unibyte_string (argv
[i
], strlen (argv
[i
])),
526 unbind_to (count
, Qnil
);
529 DEFUN ("invocation-name", Finvocation_name
, Sinvocation_name
, 0, 0, 0,
530 doc
: /* Return the program name that was used to run Emacs.
531 Any directory names are omitted. */)
534 return Fcopy_sequence (Vinvocation_name
);
537 DEFUN ("invocation-directory", Finvocation_directory
, Sinvocation_directory
,
539 doc
: /* Return the directory name in which the Emacs executable was located. */)
542 return Fcopy_sequence (Vinvocation_directory
);
547 /* A valid but unlikely value for the TZ environment value.
548 It is OK (though a bit slower) if the user actually chooses this value. */
549 static char dump_tz
[] = "UtC0";
552 #ifndef ORDINARY_LINK
553 /* We don't include crtbegin.o and crtend.o in the link,
554 so these functions and variables might be missed.
555 Provide dummy definitions to avoid error.
556 (We don't have any real constructors or destructors.) */
559 /* Define a dummy function F. Declare F too, to pacify gcc
560 -Wmissing-prototypes. */
561 #define DEFINE_DUMMY_FUNCTION(f) \
562 void f (void) EXTERNALLY_VISIBLE; void f (void) {}
564 #ifndef GCC_CTORS_IN_LIBC
565 DEFINE_DUMMY_FUNCTION (__do_global_ctors
)
566 DEFINE_DUMMY_FUNCTION (__do_global_ctors_aux
)
567 DEFINE_DUMMY_FUNCTION (__do_global_dtors
)
568 /* GNU/Linux has a bug in its library; avoid an error. */
570 char * __CTOR_LIST__
[2] EXTERNALLY_VISIBLE
= { (char *) (-1), 0 };
572 char * __DTOR_LIST__
[2] EXTERNALLY_VISIBLE
= { (char *) (-1), 0 };
573 #endif /* GCC_CTORS_IN_LIBC */
574 DEFINE_DUMMY_FUNCTION (__main
)
575 #endif /* __GNUC__ */
576 #endif /* ORDINARY_LINK */
578 /* Test whether the next argument in ARGV matches SSTR or a prefix of
579 LSTR (at least MINLEN characters). If so, then if VALPTR is non-null
580 (the argument is supposed to have a value) store in *VALPTR either
581 the next argument or the portion of this one after the equal sign.
582 ARGV is read starting at position *SKIPPTR; this index is advanced
583 by the number of arguments used.
585 Too bad we can't just use getopt for all of this, but we don't have
586 enough information to do it right. */
589 argmatch (char **argv
, int argc
, const char *sstr
, const char *lstr
,
590 int minlen
, char **valptr
, int *skipptr
)
596 /* Don't access argv[argc]; give up in advance. */
597 if (argc
<= *skipptr
+ 1)
600 arg
= argv
[*skipptr
+1];
603 if (strcmp (arg
, sstr
) == 0)
607 *valptr
= argv
[*skipptr
+2];
614 arglen
= (valptr
!= NULL
&& (p
= strchr (arg
, '=')) != NULL
615 ? p
- arg
: strlen (arg
));
616 if (lstr
== 0 || arglen
< minlen
|| strncmp (arg
, lstr
, arglen
) != 0)
618 else if (valptr
== NULL
)
629 else if (argv
[*skipptr
+2] != NULL
)
631 *valptr
= argv
[*skipptr
+2];
641 #ifdef DOUG_LEA_MALLOC
643 /* malloc can be invoked even before main (e.g. by the dynamic
644 linker), so the dumped malloc state must be restored as early as
645 possible using this special hook. */
648 malloc_initialize_hook (void)
651 extern char **environ
;
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 #ifndef XMALLOC_OVERRUN_CHECK
675 free (malloc_state_ptr
);
680 if (my_heap_start
== 0)
681 my_heap_start
= sbrk (0);
682 malloc_using_checking
= getenv ("MALLOC_CHECK_") != NULL
;
686 void (*__malloc_initialize_hook
) (void) EXTERNALLY_VISIBLE
= malloc_initialize_hook
;
688 #endif /* DOUG_LEA_MALLOC */
693 main (int argc
, char **argv
)
698 char stack_bottom_variable
;
699 int do_initial_setlocale
;
701 #ifdef HAVE_SETRLIMIT
716 #if defined (USE_GTK) && defined (G_SLICE_ALWAYS_MALLOC)
717 /* This is used by the Cygwin build. */
718 setenv ("G_SLICE", "always-malloc", 1);
724 extern char my_endbss
[];
725 extern char *my_endbss_static
;
727 if (my_heap_start
== 0)
728 my_heap_start
= sbrk (0);
730 heap_bss_diff
= (char *)my_heap_start
- max (my_endbss
, my_endbss_static
);
734 #ifdef RUN_TIME_REMAP
736 run_time_remap (argv
[0]);
739 /* If using unexmacosx.c (set by s/darwin.h), we must do this. */
742 unexec_init_emacs_zone ();
745 sort_args (argc
, argv
);
747 while (argv
[argc
]) argc
++;
749 if (argmatch (argv
, argc
, "-version", "--version", 3, NULL
, &skip_args
))
751 const char *version
, *copyright
;
754 Lisp_Object tem
, tem2
;
755 tem
= Fsymbol_value (intern_c_string ("emacs-version"));
756 tem2
= Fsymbol_value (intern_c_string ("emacs-copyright"));
759 fprintf (stderr
, "Invalid value of `emacs-version'\n");
764 fprintf (stderr
, "Invalid value of `emacs-copyright'\n");
769 version
= SSDATA (tem
);
770 copyright
= SSDATA (tem2
);
775 version
= emacs_version
;
776 copyright
= emacs_copyright
;
778 printf ("GNU Emacs %s\n", version
);
779 printf ("%s\n", copyright
);
780 printf ("GNU Emacs comes with ABSOLUTELY NO WARRANTY.\n");
781 printf ("You may redistribute copies of Emacs\n");
782 printf ("under the terms of the GNU General Public License.\n");
783 printf ("For more information about these matters, ");
784 printf ("see the file named COPYING.\n");
788 if (argmatch (argv
, argc
, "-chdir", "--chdir", 4, &ch_to_dir
, &skip_args
))
789 if (chdir (ch_to_dir
) == -1)
791 fprintf (stderr
, "%s: Can't chdir to %s: %s\n",
792 argv
[0], ch_to_dir
, strerror (errno
));
797 #ifdef HAVE_PERSONALITY_LINUX32
799 && (strcmp (argv
[argc
-1], "dump") == 0
800 || strcmp (argv
[argc
-1], "bootstrap") == 0)
801 && ! getenv ("EMACS_HEAP_EXEC"))
803 static char heapexec
[] = "EMACS_HEAP_EXEC=true";
804 /* Set this so we only do this once. */
807 /* A flag to turn off address randomization which is introduced
808 in linux kernel shipped with fedora core 4 */
809 #define ADD_NO_RANDOMIZE 0x0040000
810 personality (PER_LINUX32
| ADD_NO_RANDOMIZE
);
811 #undef ADD_NO_RANDOMIZE
813 execvp (argv
[0], argv
);
815 /* If the exec fails, try to dump anyway. */
818 #endif /* HAVE_PERSONALITY_LINUX32 */
820 #if defined (HAVE_SETRLIMIT) && defined (RLIMIT_STACK)
821 /* Extend the stack space available.
822 Don't do that if dumping, since some systems (e.g. DJGPP)
823 might define a smaller stack limit at that time. */
826 && (!noninteractive
|| initialized
)
828 && !getrlimit (RLIMIT_STACK
, &rlim
))
831 extern size_t re_max_failures
;
832 /* Approximate the amount regex.c needs per unit of re_max_failures. */
833 int ratio
= 20 * sizeof (char *);
834 /* Then add 33% to cover the size of the smaller stacks that regex.c
835 successively allocates and discards, on its way to the maximum. */
837 /* Add in some extra to cover
838 what we're likely to use for other reasons. */
839 newlim
= re_max_failures
* ratio
+ 200000;
841 /* NetBSD (at least NetBSD 1.2G and former) has a bug in its
842 stack allocation routine for new process that the allocation
843 fails if stack limit is not on page boundary. So, round up the
844 new limit to page boundary. */
845 newlim
= (newlim
+ getpagesize () - 1) / getpagesize () * getpagesize();
847 if (newlim
> rlim
.rlim_max
)
849 newlim
= rlim
.rlim_max
;
850 /* Don't let regex.c overflow the stack we have. */
851 re_max_failures
= (newlim
- 200000) / ratio
;
853 if (rlim
.rlim_cur
< newlim
)
854 rlim
.rlim_cur
= newlim
;
856 setrlimit (RLIMIT_STACK
, &rlim
);
858 #endif /* HAVE_SETRLIMIT and RLIMIT_STACK */
860 /* Record (approximately) where the stack begins. */
861 stack_bottom
= &stack_bottom_variable
;
865 #ifndef SYSTEM_MALLOC
866 /* Arrange to get warning messages as memory fills up. */
867 memory_warnings (0, malloc_warning
);
869 /* Call malloc at least once, to run the initial __malloc_hook.
870 Also call realloc and free for consistency. */
871 free (realloc (malloc (4), 4));
874 /* Arrange to disable interrupt input inside malloc etc. */
875 uninterrupt_malloc ();
876 # endif /* not SYNC_INPUT */
877 #endif /* not SYSTEM_MALLOC */
879 #ifdef FORWARD_SIGNAL_TO_MAIN_THREAD
880 main_thread
= pthread_self ();
881 #endif /* FORWARD_SIGNAL_TO_MAIN_THREAD */
883 #if defined (MSDOS) || defined (WINDOWSNT)
884 /* We do all file input/output as binary files. When we need to translate
885 newlines, we do that manually. */
887 #endif /* MSDOS || WINDOWSNT */
890 if (!isatty (fileno (stdin
)))
891 setmode (fileno (stdin
), O_BINARY
);
892 if (!isatty (fileno (stdout
)))
895 setmode (fileno (stdout
), O_BINARY
);
899 /* Skip initial setlocale if LC_ALL is "C", as it's not needed in that case.
900 The build procedure uses this while dumping, to ensure that the
901 dumped Emacs does not have its system locale tables initialized,
902 as that might cause screwups when the dumped Emacs starts up. */
904 char *lc_all
= getenv ("LC_ALL");
905 do_initial_setlocale
= ! lc_all
|| strcmp (lc_all
, "C");
908 /* Set locale now, so that initial error messages are localized properly.
909 fixup_locale must wait until later, since it builds strings. */
910 if (do_initial_setlocale
)
911 setlocale (LC_ALL
, "");
913 inhibit_window_system
= 0;
915 /* Handle the -t switch, which specifies filename to use as terminal. */
919 if (argmatch (argv
, argc
, "-t", "--terminal", 4, &term
, &skip_args
))
924 result
= emacs_open (term
, O_RDWR
, 0);
925 if (result
< 0 || dup (0) < 0)
927 char *errstring
= strerror (errno
);
928 fprintf (stderr
, "%s: %s: %s\n", argv
[0], term
, errstring
);
933 fprintf (stderr
, "%s: %s: not a tty\n", argv
[0], term
);
936 fprintf (stderr
, "Using %s\n", term
);
937 #ifdef HAVE_WINDOW_SYSTEM
938 inhibit_window_system
= 1; /* -t => -nw */
945 /* Command line option --no-windows is deprecated and thus not mentioned
946 in the manual and usage informations. */
947 if (argmatch (argv
, argc
, "-nw", "--no-window-system", 6, NULL
, &skip_args
)
948 || argmatch (argv
, argc
, "-nw", "--no-windows", 6, NULL
, &skip_args
))
949 inhibit_window_system
= 1;
951 /* Handle the -batch switch, which means don't do interactive display. */
953 if (argmatch (argv
, argc
, "-batch", "--batch", 5, NULL
, &skip_args
))
956 Vundo_outer_limit
= Qnil
;
958 if (argmatch (argv
, argc
, "-script", "--script", 3, &junk
, &skip_args
))
960 noninteractive
= 1; /* Set batch mode. */
961 /* Convert --script to -scriptload, un-skip it, and sort again
962 so that it will be handled in proper sequence. */
963 /* FIXME broken for --script=FILE - is that supposed to work? */
964 argv
[skip_args
- 1] = (char *) "-scriptload";
966 sort_args (argc
, argv
);
969 /* Handle the --help option, which gives a usage message. */
970 if (argmatch (argv
, argc
, "-help", "--help", 3, NULL
, &skip_args
))
972 printf (USAGE1
, argv
[0], USAGE2
);
978 if (argmatch (argv
, argc
, "-daemon", "--daemon", 5, NULL
, &skip_args
)
979 || argmatch (argv
, argc
, "-daemon", "--daemon", 5, &dname_arg
, &skip_args
))
984 /* Start as a daemon: fork a new child process which will run the
985 rest of the initialization code, then exit.
987 Detaching a daemon requires the following steps:
991 - close the tty file-descriptors
993 We only want to do the last 2 steps once the daemon is ready to
994 serve requests, i.e. after loading .emacs (initialization).
995 OTOH initialization may start subprocesses (e.g. ispell) and these
996 should be run from the proper process (the one that will end up
997 running as daemon) and with the proper "session id" in order for
998 them to keep working after detaching, so fork and setsid need to be
999 performed before initialization.
1001 We want to avoid exiting before the server socket is ready, so
1002 use a pipe for synchronization. The parent waits for the child
1003 to close its end of the pipe (using `daemon-initialized')
1005 if (pipe (daemon_pipe
) == -1)
1007 fprintf (stderr
, "Cannot pipe!\n");
1011 #ifndef NS_IMPL_COCOA
1013 fprintf (stderr
, "\nWarning: due to a long standing Gtk+ bug\nhttp://bugzilla.gnome.org/show_bug.cgi?id=85715\n\
1014 Emacs might crash when run in daemon mode and the X11 connection is unexpectedly lost.\n\
1015 Using an Emacs configured with --with-x-toolkit=lucid does not have this problem.\n");
1018 #else /* NS_IMPL_COCOA */
1019 /* Under Cocoa we must do fork+exec as CoreFoundation lib fails in
1020 forked process: http://developer.apple.com/ReleaseNotes/
1021 CoreFoundation/CoreFoundation.html)
1022 We mark being in the exec'd process by a daemon name argument of
1023 form "--daemon=\nFD0,FD1\nNAME" where FD are the pipe file descriptors,
1024 NAME is the original daemon name, if any. */
1025 if (!dname_arg
|| !strchr (dname_arg
, '\n'))
1026 f
= fork (); /* in orig */
1028 f
= 0; /* in exec'd */
1029 #endif /* NS_IMPL_COCOA */
1035 /* Close unused writing end of the pipe. */
1036 close (daemon_pipe
[1]);
1038 /* Just wait for the child to close its end of the pipe. */
1041 retval
= read (daemon_pipe
[0], &buf
, 1);
1043 while (retval
== -1 && errno
== EINTR
);
1047 fprintf (stderr
, "Error reading status from child\n");
1050 else if (retval
== 0)
1052 fprintf (stderr
, "Error: server did not start correctly\n");
1056 close (daemon_pipe
[0]);
1061 fprintf (stderr
, "Cannot fork!\n");
1065 #ifdef NS_IMPL_COCOA
1067 /* In orig process, forked as child, OR in exec'd. */
1068 if (!dname_arg
|| !strchr (dname_arg
, '\n'))
1069 { /* In orig, child: now exec w/special daemon name. */
1072 if (dname_arg
&& strlen (dname_arg
) > 70)
1074 fprintf (stderr
, "daemon: child name too long\n");
1078 sprintf (fdStr
, "--daemon=\n%d,%d\n%s", daemon_pipe
[0],
1079 daemon_pipe
[1], dname_arg
? dname_arg
: "");
1080 argv
[skip_args
] = fdStr
;
1082 execv (argv
[0], argv
);
1083 fprintf (stderr
, "emacs daemon: exec failed: %d\n", errno
);
1087 /* In exec'd: parse special dname into pipe and name info. */
1088 if (!dname_arg
|| !strchr (dname_arg
, '\n')
1089 || strlen (dname_arg
) < 1 || strlen (dname_arg
) > 70)
1091 fprintf (stderr
, "emacs daemon: daemon name absent or too long\n");
1094 dname_arg2
[0] = '\0';
1095 sscanf (dname_arg
, "\n%d,%d\n%s", &(daemon_pipe
[0]), &(daemon_pipe
[1]),
1097 dname_arg
= *dname_arg2
? dname_arg2
: NULL
;
1099 #endif /* NS_IMPL_COCOA */
1102 daemon_name
= xstrdup (dname_arg
);
1103 /* Close unused reading end of the pipe. */
1104 close (daemon_pipe
[0]);
1105 /* Make sure that the used end of the pipe is closed on exec, so
1106 that it is not accessible to programs started from .emacs. */
1107 fcntl (daemon_pipe
[1], F_SETFD
, FD_CLOEXEC
);
1113 fprintf (stderr
, "This platform does not support the -daemon flag.\n");
1118 if (! noninteractive
)
1120 #if defined (USG5) && defined (INTERRUPT_INPUT)
1123 #if defined (HAVE_GTK_AND_PTHREAD) && !defined (SYSTEM_MALLOC) && !defined (DOUG_LEA_MALLOC)
1125 extern void malloc_enable_thread (void);
1127 malloc_enable_thread ();
1134 /* Don't catch SIGHUP if dumping. */
1141 sigblock (sigmask (SIGHUP
));
1142 /* In --batch mode, don't catch SIGHUP if already ignored.
1143 That makes nohup work. */
1144 if (! noninteractive
1145 || signal (SIGHUP
, SIG_IGN
) != SIG_IGN
)
1146 signal (SIGHUP
, fatal_error_signal
);
1147 sigunblock (sigmask (SIGHUP
));
1152 ! noninteractive
|| initialized
1158 /* Don't catch these signals in batch mode if dumping.
1159 On some machines, this sets static data that would make
1160 signal fail to work right when the dumped Emacs is run. */
1161 signal (SIGQUIT
, fatal_error_signal
);
1162 signal (SIGILL
, fatal_error_signal
);
1163 signal (SIGTRAP
, fatal_error_signal
);
1165 add_user_signal (SIGUSR1
, "sigusr1");
1168 add_user_signal (SIGUSR2
, "sigusr2");
1171 signal (SIGABRT
, fatal_error_signal
);
1174 signal (SIGHWE
, fatal_error_signal
);
1177 signal (SIGPRE
, fatal_error_signal
);
1180 signal (SIGORE
, fatal_error_signal
);
1183 signal (SIGUME
, fatal_error_signal
);
1186 signal (SIGDLK
, fatal_error_signal
);
1189 signal (SIGCPULIM
, fatal_error_signal
);
1192 /* This is missing on some systems - OS/2, for example. */
1193 signal (SIGIOT
, fatal_error_signal
);
1196 signal (SIGEMT
, fatal_error_signal
);
1198 signal (SIGFPE
, fatal_error_signal
);
1200 signal (SIGBUS
, fatal_error_signal
);
1202 signal (SIGSEGV
, fatal_error_signal
);
1204 signal (SIGSYS
, fatal_error_signal
);
1206 /* May need special treatment on MS-Windows. See
1207 http://lists.gnu.org/archive/html/emacs-devel/2010-09/msg01062.html
1208 Please update the doc of kill-emacs, kill-emacs-hook, and
1209 NEWS if you change this.
1211 if (noninteractive
) signal (SIGINT
, fatal_error_signal
);
1212 signal (SIGTERM
, fatal_error_signal
);
1214 signal (SIGXCPU
, fatal_error_signal
);
1217 signal (SIGXFSZ
, fatal_error_signal
);
1218 #endif /* SIGXFSZ */
1221 /* This just means available memory is getting low. */
1222 signal (SIGDANGER
, memory_warning_signal
);
1226 /* 20 is SIGCHLD, 21 is SIGTTIN, 22 is SIGTTOU. */
1227 signal (SIGXCPU
, fatal_error_signal
);
1228 signal (SIGIOINT
, fatal_error_signal
);
1229 signal (SIGGRANT
, fatal_error_signal
);
1230 signal (SIGRETRACT
, fatal_error_signal
);
1231 signal (SIGSOUND
, fatal_error_signal
);
1232 signal (SIGMSG
, fatal_error_signal
);
1236 noninteractive1
= noninteractive
;
1238 /* Perform basic initializations (not merely interning symbols). */
1245 init_character_once ();
1246 init_charset_once ();
1247 init_coding_once ();
1248 init_syntax_once (); /* Create standard syntax table. */
1249 init_category_once (); /* Create standard category table. */
1250 /* Must be done before init_buffer. */
1251 init_casetab_once ();
1252 init_buffer_once (); /* Create buffer table and some buffers. */
1253 init_minibuf_once (); /* Create list of minibuffers. */
1254 /* Must precede init_window_once. */
1256 /* Call syms_of_xfaces before init_window_once because that
1257 function creates Vterminal_frame. Termcap frames now use
1258 faces, and the face implementation uses some symbols as
1261 /* XXX syms_of_keyboard uses some symbols in keymap.c. It would
1262 be better to arrange things not to have this dependency. */
1264 /* Call syms_of_keyboard before init_window_once because
1265 keyboard sets up symbols that include some face names that
1266 the X support will want to use. This can happen when
1267 CANNOT_DUMP is defined. */
1268 syms_of_keyboard ();
1270 /* Called before syms_of_fileio, because it sets up Qerror_condition. */
1273 /* Before syms_of_coding to initialize Vgc_cons_threshold. */
1275 /* Before syms_of_coding because it initializes Qcharsetp. */
1277 /* Before init_window_once, because it sets up the
1278 Vcoding_system_hash_table. */
1279 syms_of_coding (); /* This should be after syms_of_fileio. */
1281 init_window_once (); /* Init the window system. */
1282 #ifdef HAVE_WINDOW_SYSTEM
1283 init_fringe_once (); /* Swap bitmaps if necessary. */
1284 #endif /* HAVE_WINDOW_SYSTEM */
1289 if (do_initial_setlocale
)
1292 Vsystem_messages_locale
= Vprevious_system_messages_locale
;
1293 Vsystem_time_locale
= Vprevious_system_time_locale
;
1298 #ifdef CLASH_DETECTION
1302 running_asynch_code
= 0;
1305 = argmatch (argv
, argc
, "-nl", "--no-loadup", 6, NULL
, &skip_args
);
1308 = argmatch (argv
, argc
, "-nsl", "--no-site-lisp", 11, NULL
, &skip_args
);
1311 ns_alloc_autorelease_pool();
1312 if (!noninteractive
)
1314 #ifdef NS_IMPL_COCOA
1315 if (skip_args
< argc
)
1317 /* FIXME: Do the right thing if getenv returns NULL, or if
1319 if (!strncmp(argv
[skip_args
], "-psn", 4))
1322 chdir (getenv ("HOME"));
1324 else if (skip_args
+1 < argc
&& !strncmp(argv
[skip_args
+1], "-psn", 4))
1327 chdir (getenv ("HOME"));
1332 #endif /* HAVE_NS */
1334 #ifdef HAVE_X_WINDOWS
1335 /* Stupid kludge to catch command-line display spec. We can't
1336 handle this argument entirely in window system dependent code
1337 because we don't even know which window system dependent code
1338 to run until we've recognized this argument. */
1340 char *displayname
= 0;
1341 int count_before
= skip_args
;
1343 /* Skip any number of -d options, but only use the last one. */
1346 int count_before_this
= skip_args
;
1348 if (argmatch (argv
, argc
, "-d", "--display", 3, &displayname
, &skip_args
))
1350 else if (argmatch (argv
, argc
, "-display", 0, 3, &displayname
, &skip_args
))
1355 count_before
= count_before_this
;
1358 /* If we have the form --display=NAME,
1359 convert it into -d name.
1360 This requires inserting a new element into argv. */
1361 if (displayname
!= 0 && skip_args
- count_before
== 1)
1363 char **new = (char **) xmalloc (sizeof (char *) * (argc
+ 2));
1366 for (j
= 0; j
< count_before
+ 1; j
++)
1368 new[count_before
+ 1] = (char *) "-d";
1369 new[count_before
+ 2] = displayname
;
1370 for (j
= count_before
+ 2; j
<argc
; j
++)
1371 new[j
+ 1] = argv
[j
];
1375 /* Change --display to -d, when its arg is separate. */
1376 else if (displayname
!= 0 && skip_args
> count_before
1377 && argv
[count_before
+ 1][1] == '-')
1378 argv
[count_before
+ 1] = (char *) "-d";
1382 if (argmatch (argv
, argc
, "-Q", "--quick", 3, NULL
, &skip_args
)
1383 || argmatch (argv
, argc
, "-quick", 0, 2, NULL
, &skip_args
))
1387 /* Don't actually discard this arg. */
1388 skip_args
= count_before
;
1390 #else /* !HAVE_X_WINDOWS */
1393 int count_before
= skip_args
;
1395 if (argmatch (argv
, argc
, "-Q", "--quick", 3, NULL
, &skip_args
)
1396 || argmatch (argv
, argc
, "-quick", 0, 2, NULL
, &skip_args
))
1399 skip_args
= count_before
;
1403 /* argmatch must not be used after here,
1404 except when bulding temacs
1405 because the -d argument has not been skipped in skip_args. */
1408 /* Call early 'cause init_environment needs it. */
1410 /* Set defaults for several environment variables. */
1412 init_environment (argc
, argv
, skip_args
);
1419 /* Initialize environment from registry settings. */
1420 init_environment (argv
);
1421 init_ntproc (); /* must precede init_editfns. */
1431 /* Initialize and GC-protect Vinitial_environment and
1432 Vprocess_environment before set_initial_environment fills them
1435 syms_of_callproc ();
1436 /* egetenv is a pretty low-level facility, which may get called in
1437 many circumstances; it seems flimsy to put off initializing it
1438 until calling init_callproc. Do not do it when dumping. */
1439 if (initialized
|| ((strcmp (argv
[argc
-1], "dump") != 0
1440 && strcmp (argv
[argc
-1], "bootstrap") != 0)))
1441 set_initial_environment ();
1443 /* AIX crashes are reported in system versions 3.2.3 and 3.2.4
1444 if this is not done. Do it after set_global_environment so that we
1445 don't pollute Vglobal_environment. */
1446 /* Setting LANG here will defeat the startup locale processing... */
1451 init_buffer (); /* Init default directory of main buffer. */
1453 init_callproc_1 (); /* Must precede init_cmdargs and init_sys_modes. */
1454 init_cmdargs (argc
, argv
, skip_args
); /* Must precede init_lread. */
1458 /* Erase any pre-dump messages in the message log, to avoid confusion. */
1459 Lisp_Object old_log_max
;
1460 old_log_max
= Vmessage_log_max
;
1461 XSETFASTINT (Vmessage_log_max
, 0);
1462 message_dolog ("", 0, 1, 0);
1463 Vmessage_log_max
= old_log_max
;
1466 init_callproc (); /* Must follow init_cmdargs but not init_sys_modes. */
1469 /* Intern the names of all standard functions and variables;
1470 define standard keys. */
1474 /* The basic levels of Lisp must come first. Note that
1475 syms_of_data and some others have already been called. */
1481 syms_of_floatfns ();
1484 syms_of_bytecode ();
1486 syms_of_casefiddle ();
1488 syms_of_category ();
1490 syms_of_character ();
1497 syms_of_filelock ();
1500 /* syms_of_keymap (); */
1508 syms_of_terminal ();
1514 syms_of_textprop ();
1515 syms_of_composite ();
1518 #endif /* WINDOWSNT */
1522 #ifdef HAVE_WINDOW_SYSTEM
1525 #endif /* HAVE_WINDOW_SYSTEM */
1526 #ifdef HAVE_X_WINDOWS
1531 syms_of_xsettings ();
1538 #endif /* HAVE_X_WINDOWS */
1549 syms_of_w32select ();
1552 #endif /* HAVE_NTGUI */
1558 syms_of_win16select();
1565 syms_of_nsselect ();
1567 #endif /* HAVE_NS */
1574 syms_of_dbusbind ();
1575 #endif /* HAVE_DBUS */
1579 #endif /* WINDOWSNT */
1581 keys_of_casefiddle ();
1584 keys_of_keyboard ();
1590 /* Initialization that must be done even if the global variable
1591 initialized is non zero. */
1593 globals_of_w32fns ();
1594 globals_of_w32menu ();
1595 globals_of_w32select ();
1596 #endif /* HAVE_NTGUI */
1601 init_editfns (); /* init_process uses Voperating_system_release. */
1602 init_process (); /* init_display uses add_keyboard_wait_descriptor. */
1603 init_keyboard (); /* This too must precede init_sys_modes. */
1604 if (!noninteractive
)
1605 init_display (); /* Determine terminal type. Calls init_sys_modes. */
1608 #ifdef HAVE_WINDOW_SYSTEM
1611 #endif /* HAVE_WINDOW_SYSTEM */
1623 /* Handle -l loadup, args passed by Makefile. */
1624 if (argmatch (argv
, argc
, "-l", "--load", 3, &file
, &skip_args
))
1625 Vtop_level
= Fcons (intern_c_string ("load"),
1626 Fcons (build_string (file
), Qnil
));
1627 /* Unless next switch is -nl, load "loadup.el" first thing. */
1629 Vtop_level
= Fcons (intern_c_string ("load"),
1630 Fcons (build_string ("loadup.el"), Qnil
));
1637 /* If the execution TZ happens to be the same as the dump TZ,
1638 change it to some other value and then change it back,
1639 to force the underlying implementation to reload the TZ info.
1640 This is needed on implementations that load TZ info from files,
1641 since the TZ file contents may differ between dump and execution. */
1642 char *tz
= getenv ("TZ");
1643 if (tz
&& !strcmp (tz
, dump_tz
))
1653 /* Set up for profiling. This is known to work on FreeBSD,
1654 GNU/Linux and MinGW. It might work on some other systems too.
1655 Give it a try and tell us if it works on your system. To compile
1656 for profiling, use the configure option --enable-profiling. */
1657 #if defined (__FreeBSD__) || defined (GNU_LINUX) || defined(__MINGW32__)
1661 extern void _mcleanup ();
1663 extern unsigned char etext
asm ("etext");
1667 #ifdef HAVE___EXECUTABLE_START
1668 /* This symbol is defined by GNU ld to the start of the text
1670 extern char __executable_start
[];
1672 extern void safe_bcopy ();
1676 #ifdef HAVE___EXECUTABLE_START
1677 monstartup (__executable_start
, &etext
);
1679 /* This uses safe_bcopy because that function comes first in the
1680 Emacs executable. It might be better to use something that
1681 gives the start of the text segment, but start_of_text is not
1682 defined on all systems now. */
1683 /* FIXME: Does not work on architectures with function
1685 monstartup (safe_bcopy
, &etext
);
1695 #ifdef LOCALTIME_CACHE
1696 /* Some versions of localtime have a bug. They cache the value of the time
1697 zone rather than looking it up every time. Since localtime() is
1698 called to bolt the undumping time into the undumped emacs, this
1699 results in localtime ignoring the TZ environment variable.
1700 This flushes the new TZ value into localtime. */
1702 #endif /* defined (LOCALTIME_CACHE) */
1704 /* Enter editor command loop. This never returns. */
1710 /* Sort the args so we can find the most important ones
1711 at the beginning of argv. */
1713 /* First, here's a table of all the standard options. */
1715 struct standard_args
1718 const char *longname
;
1723 static const struct standard_args standard_args
[] =
1725 { "-version", "--version", 150, 0 },
1726 { "-chdir", "--chdir", 130, 1 },
1727 { "-t", "--terminal", 120, 1 },
1728 { "-nw", "--no-window-system", 110, 0 },
1729 { "-nw", "--no-windows", 110, 0 },
1730 { "-batch", "--batch", 100, 0 },
1731 { "-script", "--script", 100, 1 },
1732 { "-daemon", "--daemon", 99, 0 },
1733 { "-help", "--help", 90, 0 },
1734 { "-nl", "--no-loadup", 70, 0 },
1735 { "-nsl", "--no-site-lisp", 65, 0 },
1736 /* -d must come last before the options handled in startup.el. */
1737 { "-d", "--display", 60, 1 },
1738 { "-display", 0, 60, 1 },
1739 /* Now for the options handled in `command-line' (startup.el). */
1740 /* (Note that to imply -nsl, -Q is partially handled here.) */
1741 { "-Q", "--quick", 55, 0 },
1742 { "-quick", 0, 55, 0 },
1743 { "-q", "--no-init-file", 50, 0 },
1744 { "-no-init-file", 0, 50, 0 },
1745 { "-no-site-file", "--no-site-file", 40, 0 },
1746 { "-u", "--user", 30, 1 },
1747 { "-user", 0, 30, 1 },
1748 { "-debug-init", "--debug-init", 20, 0 },
1749 { "-iconic", "--iconic", 15, 0 },
1750 { "-D", "--basic-display", 12, 0},
1751 { "-basic-display", 0, 12, 0},
1752 { "-nbc", "--no-blinking-cursor", 12, 0 },
1753 /* Now for the options handled in `command-line-1' (startup.el). */
1754 { "-nbi", "--no-bitmap-icon", 10, 0 },
1755 { "-bg", "--background-color", 10, 1 },
1756 { "-background", 0, 10, 1 },
1757 { "-fg", "--foreground-color", 10, 1 },
1758 { "-foreground", 0, 10, 1 },
1759 { "-bd", "--border-color", 10, 1 },
1760 { "-bw", "--border-width", 10, 1 },
1761 { "-ib", "--internal-border", 10, 1 },
1762 { "-ms", "--mouse-color", 10, 1 },
1763 { "-cr", "--cursor-color", 10, 1 },
1764 { "-fn", "--font", 10, 1 },
1765 { "-font", 0, 10, 1 },
1766 { "-fs", "--fullscreen", 10, 0 },
1767 { "-fw", "--fullwidth", 10, 0 },
1768 { "-fh", "--fullheight", 10, 0 },
1769 { "-mm", "--maximized", 10, 0 },
1770 { "-g", "--geometry", 10, 1 },
1771 { "-geometry", 0, 10, 1 },
1772 { "-T", "--title", 10, 1 },
1773 { "-title", 0, 10, 1 },
1774 { "-name", "--name", 10, 1 },
1775 { "-xrm", "--xrm", 10, 1 },
1776 { "-parent-id", "--parent-id", 10, 1 },
1777 { "-r", "--reverse-video", 5, 0 },
1779 { "-reverse", 0, 5, 0 },
1780 { "-hb", "--horizontal-scroll-bars", 5, 0 },
1781 { "-vb", "--vertical-scroll-bars", 5, 0 },
1782 { "-color", "--color", 5, 0},
1783 { "-no-splash", "--no-splash", 3, 0 },
1784 { "-no-desktop", "--no-desktop", 3, 0 },
1786 { "-NSAutoLaunch", 0, 5, 1 },
1787 { "-NXAutoLaunch", 0, 5, 1 },
1788 { "-disable-font-backend", "--disable-font-backend", 65, 0 },
1789 { "-_NSMachLaunch", 0, 85, 1 },
1790 { "-MachLaunch", 0, 85, 1 },
1791 { "-macosx", 0, 85, 0 },
1792 { "-NSHost", 0, 85, 1 },
1794 /* These have the same priority as ordinary file name args,
1795 so they are not reordered with respect to those. */
1796 { "-L", "--directory", 0, 1 },
1797 { "-directory", 0, 0, 1 },
1798 { "-l", "--load", 0, 1 },
1799 { "-load", 0, 0, 1 },
1800 /* This has no longname, because using --scriptload confuses sort_args,
1801 because then the --script long option seems to match twice; ie
1802 you can't have a long option which is a prefix of another long
1803 option. In any case, this is entirely an internal option. */
1804 { "-scriptload", NULL
, 0, 1 },
1805 { "-f", "--funcall", 0, 1 },
1806 { "-funcall", 0, 0, 1 },
1807 { "-eval", "--eval", 0, 1 },
1808 { "-execute", "--execute", 0, 1 },
1809 { "-find-file", "--find-file", 0, 1 },
1810 { "-visit", "--visit", 0, 1 },
1811 { "-file", "--file", 0, 1 },
1812 { "-insert", "--insert", 0, 1 },
1814 { "-NXOpen", 0, 0, 1 },
1815 { "-NXOpenTemp", 0, 0, 1 },
1816 { "-NSOpen", 0, 0, 1 },
1817 { "-NSOpenTemp", 0, 0, 1 },
1818 { "-GSFilePath", 0, 0, 1 },
1820 /* This should be processed after ordinary file name args and the like. */
1821 { "-kill", "--kill", -10, 0 },
1824 /* Reorder the elements of ARGV (assumed to have ARGC elements)
1825 so that the highest priority ones come first.
1826 Do not change the order of elements of equal priority.
1827 If an option takes an argument, keep it and its argument together.
1829 If an option that takes no argument appears more
1830 than once, eliminate all but one copy of it. */
1833 sort_args (int argc
, char **argv
)
1835 char **new = (char **) xmalloc (sizeof (char *) * argc
);
1836 /* For each element of argv,
1837 the corresponding element of options is:
1838 0 for an option that takes no arguments,
1839 1 for an option that takes one argument, etc.
1840 -1 for an ordinary non-option argument. */
1841 int *options
= (int *) xmalloc (sizeof (int) * argc
);
1842 int *priority
= (int *) xmalloc (sizeof (int) * argc
);
1844 int incoming_used
= 1;
1848 /* Categorize all the options,
1849 and figure out which argv elts are option arguments. */
1850 for (from
= 1; from
< argc
; from
++)
1854 if (argv
[from
][0] == '-')
1858 /* If we have found "--", don't consider
1859 any more arguments as options. */
1860 if (argv
[from
][1] == '-' && argv
[from
][2] == 0)
1862 /* Leave the "--", and everything following it, at the end. */
1863 for (; from
< argc
; from
++)
1865 priority
[from
] = -100;
1871 /* Look for a match with a known old-fashioned option. */
1872 for (i
= 0; i
< sizeof (standard_args
) / sizeof (standard_args
[0]); i
++)
1873 if (!strcmp (argv
[from
], standard_args
[i
].name
))
1875 options
[from
] = standard_args
[i
].nargs
;
1876 priority
[from
] = standard_args
[i
].priority
;
1877 if (from
+ standard_args
[i
].nargs
>= argc
)
1878 fatal ("Option `%s' requires an argument\n", argv
[from
]);
1879 from
+= standard_args
[i
].nargs
;
1883 /* Look for a match with a known long option.
1884 MATCH is -1 if no match so far, -2 if two or more matches so far,
1885 >= 0 (the table index of the match) if just one match so far. */
1886 if (argv
[from
][1] == '-')
1888 char const *equals
= strchr (argv
[from
], '=');
1890 equals
? equals
- argv
[from
] : strlen (argv
[from
]);
1895 i
< sizeof (standard_args
) / sizeof (standard_args
[0]); i
++)
1896 if (standard_args
[i
].longname
1897 && !strncmp (argv
[from
], standard_args
[i
].longname
,
1906 /* If we found exactly one match, use that. */
1909 options
[from
] = standard_args
[match
].nargs
;
1910 priority
[from
] = standard_args
[match
].priority
;
1911 /* If --OPTION=VALUE syntax is used,
1912 this option uses just one argv element. */
1915 if (from
+ options
[from
] >= argc
)
1916 fatal ("Option `%s' requires an argument\n", argv
[from
]);
1917 from
+= options
[from
];
1919 /* FIXME When match < 0, shouldn't there be some error,
1920 or at least indication to the user that there was a
1927 /* Copy the arguments, in order of decreasing priority, to NEW. */
1929 while (incoming_used
< argc
)
1932 int best_priority
= -9999;
1934 /* Find the highest priority remaining option.
1935 If several have equal priority, take the first of them. */
1936 for (from
= 1; from
< argc
; from
++)
1938 if (argv
[from
] != 0 && priority
[from
] > best_priority
)
1940 best_priority
= priority
[from
];
1943 /* Skip option arguments--they are tied to the options. */
1944 if (options
[from
] > 0)
1945 from
+= options
[from
];
1951 /* Copy the highest priority remaining option, with its args, to NEW.
1952 Unless it is a duplicate of the previous one. */
1953 if (! (options
[best
] == 0
1954 && ! strcmp (new[to
- 1], argv
[best
])))
1956 new[to
++] = argv
[best
];
1957 for (i
= 0; i
< options
[best
]; i
++)
1958 new[to
++] = argv
[best
+ i
+ 1];
1961 incoming_used
+= 1 + (options
[best
] > 0 ? options
[best
] : 0);
1963 /* Clear out this option in ARGV. */
1965 for (i
= 0; i
< options
[best
]; i
++)
1966 argv
[best
+ i
+ 1] = 0;
1969 /* If duplicate options were deleted, fill up extra space with null ptrs. */
1973 memcpy (argv
, new, sizeof (char *) * argc
);
1980 DEFUN ("kill-emacs", Fkill_emacs
, Skill_emacs
, 0, 1, "P",
1981 doc
: /* Exit the Emacs job and kill it.
1982 If ARG is an integer, return ARG as the exit program code.
1983 If ARG is a string, stuff it as keyboard input.
1985 This function is called upon receipt of the signals SIGTERM
1986 or SIGHUP, and upon SIGINT in batch mode.
1988 The value of `kill-emacs-hook', if not void,
1989 is a list of functions (of no args),
1990 all of which are called before Emacs is actually killed. */)
1993 struct gcpro gcpro1
;
2001 hook
= intern ("kill-emacs-hook");
2002 Frun_hooks (1, &hook
);
2006 #ifdef HAVE_X_WINDOWS
2007 /* Transfer any clipboards we own to the clipboard manager. */
2008 x_clipboard_manager_save_all ();
2011 shut_down_emacs (0, 0, STRINGP (arg
) ? arg
: Qnil
);
2013 /* If we have an auto-save list file,
2014 kill it because we are exiting Emacs deliberately (not crashing).
2015 Do it after shut_down_emacs, which does an auto-save. */
2016 if (STRINGP (Vauto_save_list_file_name
))
2017 unlink (SSDATA (Vauto_save_list_file_name
));
2019 exit (INTEGERP (arg
) ? XINT (arg
) : EXIT_SUCCESS
);
2023 /* Perform an orderly shutdown of Emacs. Autosave any modified
2024 buffers, kill any child processes, clean up the terminal modes (if
2025 we're in the foreground), and other stuff like that. Don't perform
2026 any redisplay; this may be called when Emacs is shutting down in
2027 the background, or after its X connection has died.
2029 If SIG is a signal number, print a message for it.
2031 This is called by fatal signal handlers, X protocol error handlers,
2035 shut_down_emacs (int sig
, int no_x
, Lisp_Object stuff
)
2037 /* Prevent running of hooks from now on. */
2040 /* Don't update display from now on. */
2041 Vinhibit_redisplay
= Qt
;
2043 /* If we are controlling the terminal, reset terminal modes. */
2046 int pgrp
= EMACS_GETPGRP (0);
2047 int tpgrp
= tcgetpgrp (0);
2048 if ((tpgrp
!= -1) && tpgrp
== pgrp
)
2050 reset_all_sys_modes ();
2051 if (sig
&& sig
!= SIGTERM
)
2052 fprintf (stderr
, "Fatal error (%d)", sig
);
2057 reset_all_sys_modes ();
2060 stuff_buffered_input (stuff
);
2062 inhibit_sentinels
= 1;
2063 kill_buffer_processes (Qnil
);
2064 Fdo_auto_save (Qt
, Qnil
);
2066 #ifdef CLASH_DETECTION
2067 unlock_all_files ();
2070 #if 0 /* This triggers a bug in XCloseDisplay and is not needed. */
2071 #ifdef HAVE_X_WINDOWS
2072 /* It's not safe to call intern here. Maybe we are crashing. */
2073 if (!noninteractive
&& SYMBOLP (Vinitial_window_system
)
2074 && SCHARS (SYMBOL_NAME (Vinitial_window_system
)) == 1
2075 && SREF (SYMBOL_NAME (Vinitial_window_system
), 0) == 'x'
2077 Fx_close_current_connection ();
2078 #endif /* HAVE_X_WINDOWS */
2082 /* There is a tendency for a SIGIO signal to arrive within exit,
2083 and cause a SIGHUP because the input descriptor is already closed. */
2085 signal (SIGIO
, SIG_IGN
);
2092 /* Do this only if terminating normally, we want glyph matrices
2093 etc. in a core dump. */
2094 if (sig
== 0 || sig
== SIGTERM
)
2096 check_glyph_memory ();
2097 check_message_stack ();
2105 ns_term_shutdown (sig
);
2115 DEFUN ("dump-emacs", Fdump_emacs
, Sdump_emacs
, 2, 2, 0,
2116 doc
: /* Dump current state of Emacs into executable file FILENAME.
2117 Take symbols from SYMFILE (presumably the file you executed to run Emacs).
2118 This is used in the file `loadup.el' when building Emacs.
2120 You must run Emacs in batch mode in order to dump it. */)
2121 (Lisp_Object filename
, Lisp_Object symfile
)
2125 int count
= SPECPDL_INDEX ();
2129 if (! noninteractive
)
2130 error ("Dumping Emacs works only in batch mode");
2134 /* Warn if the gap between BSS end and heap start is larger than this. */
2135 # define MAX_HEAP_BSS_DIFF (1024*1024)
2137 if (heap_bss_diff
> MAX_HEAP_BSS_DIFF
)
2139 fprintf (stderr
, "**************************************************\n");
2140 fprintf (stderr
, "Warning: Your system has a gap between BSS and the\n");
2141 fprintf (stderr
, "heap (%"pMu
" bytes). This usually means that exec-shield\n",
2143 fprintf (stderr
, "or something similar is in effect. The dump may\n");
2144 fprintf (stderr
, "fail because of this. See the section about\n");
2145 fprintf (stderr
, "exec-shield in etc/PROBLEMS for more information.\n");
2146 fprintf (stderr
, "**************************************************\n");
2148 #endif /* GNU_LINUX */
2150 /* Bind `command-line-processed' to nil before dumping,
2151 so that the dumped Emacs will process its command line
2152 and set up to work with X windows if appropriate. */
2153 symbol
= intern ("command-line-processed");
2154 specbind (symbol
, Qnil
);
2156 CHECK_STRING (filename
);
2157 filename
= Fexpand_file_name (filename
, Qnil
);
2158 if (!NILP (symfile
))
2160 CHECK_STRING (symfile
);
2161 if (SCHARS (symfile
))
2162 symfile
= Fexpand_file_name (symfile
, Qnil
);
2166 Vpurify_flag
= Qnil
;
2169 set_time_zone_rule (dump_tz
);
2170 #ifndef LOCALTIME_CACHE
2171 /* Force a tz reload, since set_time_zone_rule doesn't. */
2177 /* Tell malloc where start of impure now is. */
2178 /* Also arrange for warnings when nearly out of space. */
2179 #ifndef SYSTEM_MALLOC
2181 /* On Windows, this was done before dumping, and that once suffices.
2182 Meanwhile, my_edata is not valid on Windows. */
2184 extern char my_edata
[];
2185 memory_warnings (my_edata
, malloc_warning
);
2187 #endif /* not WINDOWSNT */
2188 #if defined (HAVE_GTK_AND_PTHREAD) && !defined SYNC_INPUT
2189 /* Pthread may call malloc before main, and then we will get an endless
2190 loop, because pthread_self (see alloc.c) calls malloc the first time
2191 it is called on some systems. */
2192 reset_malloc_hooks ();
2194 #endif /* not SYSTEM_MALLOC */
2195 #ifdef DOUG_LEA_MALLOC
2196 malloc_state_ptr
= malloc_get_state ();
2199 #ifdef USE_MMAP_FOR_BUFFERS
2202 unexec (SSDATA (filename
), !NILP (symfile
) ? SSDATA (symfile
) : 0);
2203 #ifdef USE_MMAP_FOR_BUFFERS
2206 #ifdef DOUG_LEA_MALLOC
2207 free (malloc_state_ptr
);
2212 return unbind_to (count
, Qnil
);
2215 #endif /* not CANNOT_DUMP */
2218 /* Recover from setlocale (LC_ALL, ""). */
2222 /* The Emacs Lisp reader needs LC_NUMERIC to be "C",
2223 so that numbers are read and printed properly for Emacs Lisp. */
2224 setlocale (LC_NUMERIC
, "C");
2227 /* Set system locale CATEGORY, with previous locale *PLOCALE, to
2230 synchronize_locale (int category
, Lisp_Object
*plocale
, Lisp_Object desired_locale
)
2232 if (! EQ (*plocale
, desired_locale
))
2234 *plocale
= desired_locale
;
2235 setlocale (category
, (STRINGP (desired_locale
)
2236 ? SSDATA (desired_locale
)
2241 /* Set system time locale to match Vsystem_time_locale, if possible. */
2243 synchronize_system_time_locale (void)
2245 synchronize_locale (LC_TIME
, &Vprevious_system_time_locale
,
2246 Vsystem_time_locale
);
2249 /* Set system messages locale to match Vsystem_messages_locale, if
2252 synchronize_system_messages_locale (void)
2255 synchronize_locale (LC_MESSAGES
, &Vprevious_system_messages_locale
,
2256 Vsystem_messages_locale
);
2259 #endif /* HAVE_SETLOCALE */
2266 decode_env_path (const char *evarname
, const char *defalt
)
2268 const char *path
, *p
;
2269 Lisp_Object lpath
, element
, tem
;
2271 /* It's okay to use getenv here, because this function is only used
2272 to initialize variables when Emacs starts up, and isn't called
2275 path
= getenv (evarname
);
2281 /* Ensure values from the environment use the proper directory separator. */
2284 char *path_copy
= alloca (strlen (path
) + 1);
2285 strcpy (path_copy
, path
);
2286 dostounix_filename (path_copy
);
2293 p
= strchr (path
, SEPCHAR
);
2295 p
= path
+ strlen (path
);
2296 element
= (p
- path
? make_string (path
, p
- path
)
2297 : build_string ("."));
2299 /* Add /: to the front of the name
2300 if it would otherwise be treated as magic. */
2301 tem
= Ffind_file_name_handler (element
, Qt
);
2303 /* However, if the handler says "I'm safe",
2304 don't bother adding /:. */
2308 prop
= Fget (tem
, intern ("safe-magic"));
2314 element
= concat2 (build_string ("/:"), element
);
2316 lpath
= Fcons (element
, lpath
);
2322 return Fnreverse (lpath
);
2325 DEFUN ("daemonp", Fdaemonp
, Sdaemonp
, 0, 0, 0,
2326 doc
: /* Return non-nil if the current emacs process is a daemon.
2327 If the daemon was given a name argument, return that name. */)
2332 return build_string (daemon_name
);
2339 DEFUN ("daemon-initialized", Fdaemon_initialized
, Sdaemon_initialized
, 0, 0, 0,
2340 doc
: /* Mark the Emacs daemon as being initialized.
2341 This finishes the daemonization process by doing the other half of detaching
2342 from the parent process and its tty file descriptors. */)
2349 error ("This function can only be called if emacs is run as a daemon");
2351 if (daemon_pipe
[1] < 0)
2352 error ("The daemon has already been initialized");
2354 if (NILP (Vafter_init_time
))
2355 error ("This function can only be called after loading the init files");
2357 /* Get rid of stdin, stdout and stderr. */
2358 nfd
= open ("/dev/null", O_RDWR
);
2360 err
|= dup2 (nfd
, 0) < 0;
2361 err
|= dup2 (nfd
, 1) < 0;
2362 err
|= dup2 (nfd
, 2) < 0;
2363 err
|= close (nfd
) != 0;
2365 /* Closing the pipe will notify the parent that it can exit.
2366 FIXME: In case some other process inherited the pipe, closing it here
2367 won't notify the parent because it's still open elsewhere, so we
2368 additionally send a byte, just to make sure the parent really exits.
2369 Instead, we should probably close the pipe in start-process and
2370 call-process to make sure the pipe is never inherited by
2372 err
|= write (daemon_pipe
[1], "\n", 1) < 0;
2373 err
|= close (daemon_pipe
[1]) != 0;
2374 /* Set it to an invalid value so we know we've already run this function. */
2375 daemon_pipe
[1] = -1;
2378 error ("I/O error during daemon initialization");
2383 syms_of_emacs (void)
2385 DEFSYM (Qfile_name_handler_alist
, "file-name-handler-alist");
2386 DEFSYM (Qrisky_local_variable
, "risky-local-variable");
2389 defsubr (&Sdump_emacs
);
2392 defsubr (&Skill_emacs
);
2394 defsubr (&Sinvocation_name
);
2395 defsubr (&Sinvocation_directory
);
2396 defsubr (&Sdaemonp
);
2397 defsubr (&Sdaemon_initialized
);
2399 DEFVAR_LISP ("command-line-args", Vcommand_line_args
,
2400 doc
: /* Args passed by shell to Emacs, as a list of strings.
2401 Many arguments are deleted from the list as they are processed. */);
2403 DEFVAR_LISP ("system-type", Vsystem_type
,
2404 doc
: /* The value is a symbol indicating the type of operating system you are using.
2406 `gnu' compiled for a GNU Hurd system.
2407 `gnu/linux' compiled for a GNU/Linux system.
2408 `gnu/kfreebsd' compiled for a GNU system with a FreeBSD kernel.
2409 `darwin' compiled for Darwin (GNU-Darwin, Mac OS X, ...).
2410 `ms-dos' compiled as an MS-DOS application.
2411 `windows-nt' compiled as a native W32 application.
2412 `cygwin' compiled using the Cygwin library.
2413 Anything else (in Emacs 24.1, the possibilities are: aix, berkeley-unix,
2414 hpux, irix, usg-unix-v) indicates some sort of Unix system. */);
2415 Vsystem_type
= intern_c_string (SYSTEM_TYPE
);
2416 /* The above values are from SYSTEM_TYPE in include files under src/s. */
2418 DEFVAR_LISP ("system-configuration", Vsystem_configuration
,
2419 doc
: /* Value is string indicating configuration Emacs was built for.
2420 On MS-Windows, the value reflects the OS flavor and version on which
2421 Emacs is running. */);
2422 Vsystem_configuration
= build_string (EMACS_CONFIGURATION
);
2424 DEFVAR_LISP ("system-configuration-options", Vsystem_configuration_options
,
2425 doc
: /* String containing the configuration options Emacs was built with. */);
2426 Vsystem_configuration_options
= build_string (EMACS_CONFIG_OPTIONS
);
2428 DEFVAR_BOOL ("noninteractive", noninteractive1
,
2429 doc
: /* Non-nil means Emacs is running without interactive terminal. */);
2431 DEFVAR_LISP ("kill-emacs-hook", Vkill_emacs_hook
,
2432 doc
: /* Hook to be run when `kill-emacs' is called.
2433 Since `kill-emacs' may be invoked when the terminal is disconnected (or
2434 in other similar situations), functions placed on this hook should not
2435 expect to be able to interact with the user. To ask for confirmation,
2436 see `kill-emacs-query-functions' instead.
2438 Before Emacs 24.1, the hook was not run in batch mode, i.e., if
2439 `noninteractive' was non-nil. */);
2440 Vkill_emacs_hook
= Qnil
;
2442 DEFVAR_LISP ("path-separator", Vpath_separator
,
2443 doc
: /* String containing the character that separates directories in
2444 search paths, such as PATH and other similar environment variables. */);
2447 Vpath_separator
= make_string (&c
, 1);
2450 DEFVAR_LISP ("invocation-name", Vinvocation_name
,
2451 doc
: /* The program name that was used to run Emacs.
2452 Any directory names are omitted. */);
2454 DEFVAR_LISP ("invocation-directory", Vinvocation_directory
,
2455 doc
: /* The directory in which the Emacs executable was found, to run it.
2456 The value is nil if that directory's name is not known. */);
2458 DEFVAR_LISP ("installation-directory", Vinstallation_directory
,
2459 doc
: /* A directory within which to look for the `lib-src' and `etc' directories.
2460 This is non-nil when we can't find those directories in their standard
2461 installed locations, but we can find them near where the Emacs executable
2463 Vinstallation_directory
= Qnil
;
2465 DEFVAR_LISP ("system-messages-locale", Vsystem_messages_locale
,
2466 doc
: /* System locale for messages. */);
2467 Vsystem_messages_locale
= Qnil
;
2469 DEFVAR_LISP ("previous-system-messages-locale",
2470 Vprevious_system_messages_locale
,
2471 doc
: /* Most recently used system locale for messages. */);
2472 Vprevious_system_messages_locale
= Qnil
;
2474 DEFVAR_LISP ("system-time-locale", Vsystem_time_locale
,
2475 doc
: /* System locale for time. */);
2476 Vsystem_time_locale
= Qnil
;
2478 DEFVAR_LISP ("previous-system-time-locale", Vprevious_system_time_locale
,
2479 doc
: /* Most recently used system locale for time. */);
2480 Vprevious_system_time_locale
= Qnil
;
2482 DEFVAR_LISP ("before-init-time", Vbefore_init_time
,
2483 doc
: /* Value of `current-time' before Emacs begins initialization. */);
2484 Vbefore_init_time
= Qnil
;
2486 DEFVAR_LISP ("after-init-time", Vafter_init_time
,
2487 doc
: /* Value of `current-time' after loading the init files.
2488 This is nil during initialization. */);
2489 Vafter_init_time
= Qnil
;
2491 DEFVAR_BOOL ("inhibit-x-resources", inhibit_x_resources
,
2492 doc
: /* If non-nil, X resources, Windows Registry settings, and NS defaults are not used. */);
2493 inhibit_x_resources
= 0;
2495 DEFVAR_LISP ("emacs-copyright", Vemacs_copyright
,
2496 doc
: /* Short copyright string for this version of Emacs. */);
2497 Vemacs_copyright
= build_string (emacs_copyright
);
2499 DEFVAR_LISP ("emacs-version", Vemacs_version
,
2500 doc
: /* Version numbers of this version of Emacs. */);
2501 Vemacs_version
= build_string (emacs_version
);
2503 DEFVAR_LISP ("dynamic-library-alist", Vdynamic_library_alist
,
2504 doc
: /* Alist of dynamic libraries vs external files implementing them.
2505 Each element is a list (LIBRARY FILE...), where the car is a symbol
2506 representing a supported external library, and the rest are strings giving
2507 alternate filenames for that library.
2509 Emacs tries to load the library from the files in the order they appear on
2510 the list; if none is loaded, the running session of Emacs won't have access
2513 Note that image types `pbm' and `xbm' do not need entries in this variable
2514 because they do not depend on external libraries and are always available.
2516 Also note that this is not a generic facility for accessing external
2517 libraries; only those already known by Emacs will be loaded. */);
2518 Vdynamic_library_alist
= Qnil
;
2519 Fput (intern_c_string ("dynamic-library-alist"), Qrisky_local_variable
, Qt
);
2521 /* Make sure IS_DAEMON starts up as false. */