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"
54 #include "blockinput.h"
55 #include "syssignal.h"
58 #include "termhooks.h"
80 #include <sys/resource.h>
83 #ifdef HAVE_PERSONALITY_LINUX32
84 #include <sys/personality.h>
94 #define setpgrp setpgid
98 static const char emacs_version
[] = VERSION
;
99 static const char emacs_copyright
[] = "Copyright (C) 2011 Free Software Foundation, Inc.";
101 /* Make these values available in GDB, which doesn't see macros. */
104 int gdb_use_lsb EXTERNALLY_VISIBLE
= 1;
106 int gdb_use_lsb EXTERNALLY_VISIBLE
= 0;
108 #ifndef USE_LISP_UNION_TYPE
109 int gdb_use_union EXTERNALLY_VISIBLE
= 0;
111 int gdb_use_union EXTERNALLY_VISIBLE
= 1;
113 EMACS_INT gdb_valbits EXTERNALLY_VISIBLE
= VALBITS
;
114 EMACS_INT gdb_gctypebits EXTERNALLY_VISIBLE
= GCTYPEBITS
;
115 #if defined (DATA_SEG_BITS) && ! defined (USE_LSB_TAG)
116 EMACS_INT gdb_data_seg_bits EXTERNALLY_VISIBLE
= DATA_SEG_BITS
;
118 EMACS_INT gdb_data_seg_bits EXTERNALLY_VISIBLE
= 0;
120 EMACS_INT PVEC_FLAG EXTERNALLY_VISIBLE
= PSEUDOVECTOR_FLAG
;
121 EMACS_INT gdb_array_mark_flag EXTERNALLY_VISIBLE
= ARRAY_MARK_FLAG
;
122 /* GDB might say "No enum type named pvec_type" if we don't have at
123 least one symbol with that type, and then xbacktrace could fail. */
124 enum pvec_type gdb_pvec_type EXTERNALLY_VISIBLE
= PVEC_TYPE_MASK
;
126 /* Empty lisp strings. To avoid having to build any others. */
127 Lisp_Object empty_unibyte_string
, empty_multibyte_string
;
129 /* Set nonzero after Emacs has started up the first time.
130 Prevents reinitialization of the Lisp world and keymaps
131 on subsequent starts. */
134 #ifdef DOUG_LEA_MALLOC
135 /* Preserves a pointer to the memory allocated that copies that
136 static data inside glibc's malloc. */
137 static void *malloc_state_ptr
;
138 /* From glibc, a routine that returns a copy of the malloc internal state. */
139 extern void *malloc_get_state (void);
140 /* From glibc, a routine that overwrites the malloc internal state. */
141 extern int malloc_set_state (void*);
142 /* Non-zero if the MALLOC_CHECK_ environment variable was set while
143 dumping. Used to work around a bug in glibc's malloc. */
144 static int malloc_using_checking
;
147 Lisp_Object Qfile_name_handler_alist
;
149 Lisp_Object Qrisky_local_variable
;
151 /* If non-zero, Emacs should not attempt to use a window-specific code,
152 but instead should use the virtual terminal under which it was started. */
153 int inhibit_window_system
;
155 /* If non-zero, a filter or a sentinel is running. Tested to save the match
156 data on the first attempt to change it inside asynchronous code. */
157 int running_asynch_code
;
159 #if defined(HAVE_X_WINDOWS) || defined(HAVE_NS)
160 /* If non-zero, -d was specified, meaning we're using some window system. */
164 /* An address near the bottom of the stack.
165 Tells GC how to save a copy of the stack. */
168 /* The address where the heap starts (from the first sbrk (0) call). */
169 static void *my_heap_start
;
171 /* The gap between BSS end and heap start as far as we can tell. */
172 static unsigned long heap_bss_diff
;
174 /* Nonzero means running Emacs without interactive terminal. */
177 /* Nonzero means remove site-lisp directories from load-path. */
180 /* Name for the server started by the daemon.*/
181 static char *daemon_name
;
183 /* Pipe used to send exit notification to the daemon parent at
187 /* Save argv and argc. */
191 static void sort_args (int argc
, char **argv
);
192 static void syms_of_emacs (void);
194 /* MSVC needs each string be shorter than 2048 bytes, so the usage
195 strings below are split to not overflow this limit. */
197 Usage: %s [OPTION-OR-FILENAME]...\n\
199 Run Emacs, the extensible, customizable, self-documenting real-time\n\
200 display editor. The recommended way to start Emacs for normal editing\n\
201 is with no options at all.\n\
203 Run M-x info RET m emacs RET m emacs invocation RET inside Emacs to\n\
204 read the main documentation for these command-line arguments.\n\
206 Initialization options:\n\
208 --batch do not do interactive display; implies -q\n\
209 --chdir DIR change to directory DIR\n\
210 --daemon start a server in the background\n\
211 --debug-init enable Emacs Lisp debugger for init file\n\
212 --display, -d DISPLAY use X server DISPLAY\n\
213 --no-desktop do not load a saved desktop\n\
214 --no-init-file, -q load neither ~/.emacs nor default.el\n\
215 --no-shared-memory, -nl do not use shared memory\n\
216 --no-site-file do not load site-start.el\n\
217 --no-site-lisp, -nsl do not add site-lisp directories to load-path\n\
218 --no-splash do not display a splash screen on startup\n\
219 --no-window-system, -nw do not communicate with X, ignoring $DISPLAY\n\
220 --quick, -Q equivalent to:\n\
221 -q --no-site-file --no-site-lisp --no-splash\n\
222 --script FILE run FILE as an Emacs Lisp script\n\
223 --terminal, -t DEVICE use DEVICE for terminal I/O\n\
224 --user, -u USER load ~USER/.emacs instead of your own\n\
230 FILE visit FILE using find-file\n\
231 +LINE go to line LINE in next FILE\n\
232 +LINE:COLUMN go to line LINE, column COLUMN, in next FILE\n\
233 --directory, -L DIR add DIR to variable load-path\n\
234 --eval EXPR evaluate Emacs Lisp expression EXPR\n\
235 --execute EXPR evaluate Emacs Lisp expression EXPR\n\
236 --file FILE visit FILE using find-file\n\
237 --find-file FILE visit FILE using find-file\n\
238 --funcall, -f FUNC call Emacs Lisp function FUNC with no arguments\n\
239 --insert FILE insert contents of FILE into current buffer\n\
240 --kill exit without asking for confirmation\n\
241 --load, -l FILE load Emacs Lisp FILE using the load function\n\
242 --visit FILE visit FILE using find-file\n\
248 --background-color, -bg COLOR window background color\n\
249 --basic-display, -D disable many display features;\n\
250 used for debugging Emacs\n\
251 --border-color, -bd COLOR main border color\n\
252 --border-width, -bw WIDTH width of main border\n\
253 --color, --color=MODE override color mode for character terminals;\n\
254 MODE defaults to `auto', and\n\
255 can also be `never', `always',\n\
256 or a mode name like `ansi8'\n\
257 --cursor-color, -cr COLOR color of the Emacs cursor indicating point\n\
258 --font, -fn FONT default font; must be fixed-width\n\
259 --foreground-color, -fg COLOR window foreground color\n\
260 --fullheight, -fh make the first frame high as the screen\n\
261 --fullscreen, -fs make the first frame fullscreen\n\
262 --fullwidth, -fw make the first frame wide as the screen\n\
263 --maximized, -mm make the first frame maximized\n\
264 --geometry, -g GEOMETRY window geometry\n\
265 --no-bitmap-icon, -nbi do not use picture of gnu for Emacs icon\n\
266 --iconic start Emacs in iconified state\n\
267 --internal-border, -ib WIDTH width between text and main border\n\
268 --line-spacing, -lsp PIXELS additional space to put between lines\n\
269 --mouse-color, -ms COLOR mouse cursor color in Emacs window\n\
270 --name NAME title for initial Emacs frame\n\
271 --no-blinking-cursor, -nbc disable blinking cursor\n\
272 --reverse-video, -r, -rv switch foreground and background\n\
273 --title, -T TITLE title for initial Emacs frame\n\
274 --vertical-scroll-bars, -vb enable vertical scroll bars\n\
275 --xrm XRESOURCES set additional X resources\n\
276 --parent-id XID set parent window\n\
277 --help display this help and exit\n\
278 --version output version information and exit\n\
282 You can generally also specify long option names with a single -; for\n\
283 example, -batch as well as --batch. You can use any unambiguous\n\
284 abbreviation for a --option.\n\
286 Various environment variables and window system resources also affect\n\
287 Emacs' operation. See the main documentation.\n\
289 Report bugs to bug-gnu-emacs@gnu.org. First, please see the Bugs\n\
290 section of the Emacs manual or the file BUGS.\n"
293 /* Signal code for the fatal signal that was received. */
294 static int fatal_error_code
;
296 /* Nonzero if handling a fatal error already. */
297 int fatal_error_in_progress
;
299 /* If non-null, call this function from fatal_error_signal before
300 committing suicide. */
302 static void (*fatal_error_signal_hook
) (void);
304 #ifdef FORWARD_SIGNAL_TO_MAIN_THREAD
305 /* When compiled with GTK and running under Gnome,
306 multiple threads may be created. Keep track of our main
307 thread to make sure signals are delivered to it (see syssignal.h). */
309 pthread_t main_thread
;
313 /* Handle bus errors, invalid instruction, etc. */
314 #ifndef FLOAT_CATCH_SIGILL
318 fatal_error_signal (int sig
)
320 SIGNAL_THREAD_CHECK (sig
);
321 fatal_error_code
= sig
;
322 signal (sig
, SIG_DFL
);
324 TOTALLY_UNBLOCK_INPUT
;
326 /* If fatal error occurs in code below, avoid infinite recursion. */
327 if (! fatal_error_in_progress
)
329 fatal_error_in_progress
= 1;
331 if (sig
== SIGTERM
|| sig
== SIGHUP
|| sig
== SIGINT
)
332 Fkill_emacs (make_number (sig
));
334 shut_down_emacs (sig
, 0, Qnil
);
337 /* Signal the same code; this time it will really be fatal.
338 Remember that since we're in a signal handler, the signal we're
339 going to send is probably blocked, so we have to unblock it if we
340 want to really receive it. */
342 sigunblock (sigmask (fatal_error_code
));
345 if (fatal_error_signal_hook
)
346 fatal_error_signal_hook ();
348 kill (getpid (), fatal_error_code
);
353 /* Handler for SIGDANGER. */
355 memory_warning_signal (sig
)
358 signal (sig
, memory_warning_signal
);
359 SIGNAL_THREAD_CHECK (sig
);
361 malloc_warning ("Operating system warns that virtual memory is running low.\n");
363 /* It might be unsafe to call do_auto_save now. */
364 force_auto_save_soon ();
368 /* We define abort, rather than using it from the library,
369 so that GDB can return from a breakpoint here.
370 MSDOS has its own definition in msdos.c. */
372 #if ! defined (DOS_NT) && ! defined (NO_ABORT)
377 kill (getpid (), SIGABRT
);
378 /* This shouldn't be executed, but it prevents a warning. */
384 /* Code for dealing with Lisp access to the Unix command line. */
387 init_cmdargs (int argc
, char **argv
, int skip_args
)
390 Lisp_Object name
, dir
, handler
;
391 int count
= SPECPDL_INDEX ();
392 Lisp_Object raw_name
;
397 raw_name
= build_string (argv
[0]);
399 /* Add /: to the front of the name
400 if it would otherwise be treated as magic. */
401 handler
= Ffind_file_name_handler (raw_name
, Qt
);
402 if (! NILP (handler
))
403 raw_name
= concat2 (build_string ("/:"), raw_name
);
405 Vinvocation_name
= Ffile_name_nondirectory (raw_name
);
406 Vinvocation_directory
= Ffile_name_directory (raw_name
);
408 /* If we got no directory in argv[0], search PATH to find where
409 Emacs actually came from. */
410 if (NILP (Vinvocation_directory
))
413 int yes
= openp (Vexec_path
, Vinvocation_name
,
414 Vexec_suffixes
, &found
, make_number (X_OK
));
417 /* Add /: to the front of the name
418 if it would otherwise be treated as magic. */
419 handler
= Ffind_file_name_handler (found
, Qt
);
420 if (! NILP (handler
))
421 found
= concat2 (build_string ("/:"), found
);
422 Vinvocation_directory
= Ffile_name_directory (found
);
426 if (!NILP (Vinvocation_directory
)
427 && NILP (Ffile_name_absolute_p (Vinvocation_directory
)))
428 /* Emacs was started with relative path, like ./emacs.
430 Vinvocation_directory
= Fexpand_file_name (Vinvocation_directory
, Qnil
);
432 Vinstallation_directory
= Qnil
;
434 if (!NILP (Vinvocation_directory
))
436 dir
= Vinvocation_directory
;
437 name
= Fexpand_file_name (Vinvocation_name
, dir
);
440 Lisp_Object tem
, lib_src_exists
;
441 Lisp_Object etc_exists
, info_exists
;
443 /* See if dir contains subdirs for use by Emacs.
444 Check for the ones that would exist in a build directory,
445 not including lisp and info. */
446 tem
= Fexpand_file_name (build_string ("lib-src"), dir
);
447 lib_src_exists
= Ffile_exists_p (tem
);
450 /* MSDOS installations frequently remove lib-src, but we still
451 must set installation-directory, or else info won't find
452 its files (it uses the value of installation-directory). */
453 tem
= Fexpand_file_name (build_string ("info"), dir
);
454 info_exists
= Ffile_exists_p (tem
);
459 if (!NILP (lib_src_exists
) || !NILP (info_exists
))
461 tem
= Fexpand_file_name (build_string ("etc"), dir
);
462 etc_exists
= Ffile_exists_p (tem
);
463 if (!NILP (etc_exists
))
465 Vinstallation_directory
466 = Ffile_name_as_directory (dir
);
471 /* See if dir's parent contains those subdirs. */
472 tem
= Fexpand_file_name (build_string ("../lib-src"), dir
);
473 lib_src_exists
= Ffile_exists_p (tem
);
477 /* See the MSDOS commentary above. */
478 tem
= Fexpand_file_name (build_string ("../info"), dir
);
479 info_exists
= Ffile_exists_p (tem
);
484 if (!NILP (lib_src_exists
) || !NILP (info_exists
))
486 tem
= Fexpand_file_name (build_string ("../etc"), dir
);
487 etc_exists
= Ffile_exists_p (tem
);
488 if (!NILP (etc_exists
))
490 tem
= Fexpand_file_name (build_string (".."), dir
);
491 Vinstallation_directory
492 = Ffile_name_as_directory (tem
);
497 /* If the Emacs executable is actually a link,
498 next try the dir that the link points into. */
499 tem
= Ffile_symlink_p (name
);
502 name
= Fexpand_file_name (tem
, dir
);
503 dir
= Ffile_name_directory (name
);
510 Vcommand_line_args
= Qnil
;
512 for (i
= argc
- 1; i
>= 0; i
--)
514 if (i
== 0 || i
> skip_args
)
515 /* For the moment, we keep arguments as is in unibyte strings.
516 They are decoded in the function command-line after we know
517 locale-coding-system. */
519 = Fcons (make_unibyte_string (argv
[i
], strlen (argv
[i
])),
523 unbind_to (count
, Qnil
);
526 DEFUN ("invocation-name", Finvocation_name
, Sinvocation_name
, 0, 0, 0,
527 doc
: /* Return the program name that was used to run Emacs.
528 Any directory names are omitted. */)
531 return Fcopy_sequence (Vinvocation_name
);
534 DEFUN ("invocation-directory", Finvocation_directory
, Sinvocation_directory
,
536 doc
: /* Return the directory name in which the Emacs executable was located. */)
539 return Fcopy_sequence (Vinvocation_directory
);
544 /* A valid but unlikely value for the TZ environment value.
545 It is OK (though a bit slower) if the user actually chooses this value. */
546 static char dump_tz
[] = "UtC0";
549 #ifndef ORDINARY_LINK
550 /* We don't include crtbegin.o and crtend.o in the link,
551 so these functions and variables might be missed.
552 Provide dummy definitions to avoid error.
553 (We don't have any real constructors or destructors.) */
556 /* Define a dummy function F. Declare F too, to pacify gcc
557 -Wmissing-prototypes. */
558 #define DEFINE_DUMMY_FUNCTION(f) \
559 void f (void) EXTERNALLY_VISIBLE; void f (void) {}
561 #ifndef GCC_CTORS_IN_LIBC
562 DEFINE_DUMMY_FUNCTION (__do_global_ctors
)
563 DEFINE_DUMMY_FUNCTION (__do_global_ctors_aux
)
564 DEFINE_DUMMY_FUNCTION (__do_global_dtors
)
565 /* GNU/Linux has a bug in its library; avoid an error. */
567 char * __CTOR_LIST__
[2] EXTERNALLY_VISIBLE
= { (char *) (-1), 0 };
569 char * __DTOR_LIST__
[2] EXTERNALLY_VISIBLE
= { (char *) (-1), 0 };
570 #endif /* GCC_CTORS_IN_LIBC */
571 DEFINE_DUMMY_FUNCTION (__main
)
572 #endif /* __GNUC__ */
573 #endif /* ORDINARY_LINK */
575 /* Test whether the next argument in ARGV matches SSTR or a prefix of
576 LSTR (at least MINLEN characters). If so, then if VALPTR is non-null
577 (the argument is supposed to have a value) store in *VALPTR either
578 the next argument or the portion of this one after the equal sign.
579 ARGV is read starting at position *SKIPPTR; this index is advanced
580 by the number of arguments used.
582 Too bad we can't just use getopt for all of this, but we don't have
583 enough information to do it right. */
586 argmatch (char **argv
, int argc
, const char *sstr
, const char *lstr
,
587 int minlen
, char **valptr
, int *skipptr
)
593 /* Don't access argv[argc]; give up in advance. */
594 if (argc
<= *skipptr
+ 1)
597 arg
= argv
[*skipptr
+1];
600 if (strcmp (arg
, sstr
) == 0)
604 *valptr
= argv
[*skipptr
+2];
611 arglen
= (valptr
!= NULL
&& (p
= strchr (arg
, '=')) != NULL
612 ? p
- arg
: strlen (arg
));
613 if (lstr
== 0 || arglen
< minlen
|| strncmp (arg
, lstr
, arglen
) != 0)
615 else if (valptr
== NULL
)
626 else if (argv
[*skipptr
+2] != NULL
)
628 *valptr
= argv
[*skipptr
+2];
638 #ifdef DOUG_LEA_MALLOC
640 /* malloc can be invoked even before main (e.g. by the dynamic
641 linker), so the dumped malloc state must be restored as early as
642 possible using this special hook. */
645 malloc_initialize_hook (void)
648 extern char **environ
;
653 if (!malloc_using_checking
)
654 /* Work around a bug in glibc's malloc. MALLOC_CHECK_ must be
655 ignored if the heap to be restored was constructed without
656 malloc checking. Can't use unsetenv, since that calls malloc. */
660 for (p
= environ
; p
&& *p
; p
++)
661 if (strncmp (*p
, "MALLOC_CHECK_=", 14) == 0)
670 malloc_set_state (malloc_state_ptr
);
671 #ifndef XMALLOC_OVERRUN_CHECK
672 free (malloc_state_ptr
);
677 if (my_heap_start
== 0)
678 my_heap_start
= sbrk (0);
679 malloc_using_checking
= getenv ("MALLOC_CHECK_") != NULL
;
683 void (*__malloc_initialize_hook
) (void) EXTERNALLY_VISIBLE
= malloc_initialize_hook
;
685 #endif /* DOUG_LEA_MALLOC */
690 main (int argc
, char **argv
)
695 char stack_bottom_variable
;
696 int do_initial_setlocale
;
698 #ifdef HAVE_SETRLIMIT
713 #if defined (USE_GTK) && defined (G_SLICE_ALWAYS_MALLOC)
714 /* This is used by the Cygwin build. */
715 setenv ("G_SLICE", "always-malloc", 1);
720 extern char my_endbss
[];
721 extern char *my_endbss_static
;
723 if (my_heap_start
== 0)
724 my_heap_start
= sbrk (0);
726 heap_bss_diff
= (char *)my_heap_start
- max (my_endbss
, my_endbss_static
);
729 #ifdef RUN_TIME_REMAP
731 run_time_remap (argv
[0]);
734 /* If using unexmacosx.c (set by s/darwin.h), we must do this. */
737 unexec_init_emacs_zone ();
740 sort_args (argc
, argv
);
742 while (argv
[argc
]) argc
++;
744 if (argmatch (argv
, argc
, "-version", "--version", 3, NULL
, &skip_args
))
746 const char *version
, *copyright
;
749 Lisp_Object tem
, tem2
;
750 tem
= Fsymbol_value (intern_c_string ("emacs-version"));
751 tem2
= Fsymbol_value (intern_c_string ("emacs-copyright"));
754 fprintf (stderr
, "Invalid value of `emacs-version'\n");
759 fprintf (stderr
, "Invalid value of `emacs-copyright'\n");
764 version
= SSDATA (tem
);
765 copyright
= SSDATA (tem2
);
770 version
= emacs_version
;
771 copyright
= emacs_copyright
;
773 printf ("GNU Emacs %s\n", version
);
774 printf ("%s\n", copyright
);
775 printf ("GNU Emacs comes with ABSOLUTELY NO WARRANTY.\n");
776 printf ("You may redistribute copies of Emacs\n");
777 printf ("under the terms of the GNU General Public License.\n");
778 printf ("For more information about these matters, ");
779 printf ("see the file named COPYING.\n");
783 if (argmatch (argv
, argc
, "-chdir", "--chdir", 4, &ch_to_dir
, &skip_args
))
784 if (chdir (ch_to_dir
) == -1)
786 fprintf (stderr
, "%s: Can't chdir to %s: %s\n",
787 argv
[0], ch_to_dir
, strerror (errno
));
792 #ifdef HAVE_PERSONALITY_LINUX32
794 && (strcmp (argv
[argc
-1], "dump") == 0
795 || strcmp (argv
[argc
-1], "bootstrap") == 0)
796 && ! getenv ("EMACS_HEAP_EXEC"))
798 static char heapexec
[] = "EMACS_HEAP_EXEC=true";
799 /* Set this so we only do this once. */
802 /* A flag to turn off address randomization which is introduced
803 in linux kernel shipped with fedora core 4 */
804 #define ADD_NO_RANDOMIZE 0x0040000
805 personality (PER_LINUX32
| ADD_NO_RANDOMIZE
);
806 #undef ADD_NO_RANDOMIZE
808 execvp (argv
[0], argv
);
810 /* If the exec fails, try to dump anyway. */
813 #endif /* HAVE_PERSONALITY_LINUX32 */
815 #if defined (HAVE_SETRLIMIT) && defined (RLIMIT_STACK)
816 /* Extend the stack space available.
817 Don't do that if dumping, since some systems (e.g. DJGPP)
818 might define a smaller stack limit at that time. */
821 && (!noninteractive
|| initialized
)
823 && !getrlimit (RLIMIT_STACK
, &rlim
))
826 extern size_t re_max_failures
;
827 /* Approximate the amount regex.c needs per unit of re_max_failures. */
828 int ratio
= 20 * sizeof (char *);
829 /* Then add 33% to cover the size of the smaller stacks that regex.c
830 successively allocates and discards, on its way to the maximum. */
832 /* Add in some extra to cover
833 what we're likely to use for other reasons. */
834 newlim
= re_max_failures
* ratio
+ 200000;
836 /* NetBSD (at least NetBSD 1.2G and former) has a bug in its
837 stack allocation routine for new process that the allocation
838 fails if stack limit is not on page boundary. So, round up the
839 new limit to page boundary. */
840 newlim
= (newlim
+ getpagesize () - 1) / getpagesize () * getpagesize();
842 if (newlim
> rlim
.rlim_max
)
844 newlim
= rlim
.rlim_max
;
845 /* Don't let regex.c overflow the stack we have. */
846 re_max_failures
= (newlim
- 200000) / ratio
;
848 if (rlim
.rlim_cur
< newlim
)
849 rlim
.rlim_cur
= newlim
;
851 setrlimit (RLIMIT_STACK
, &rlim
);
853 #endif /* HAVE_SETRLIMIT and RLIMIT_STACK */
855 /* Record (approximately) where the stack begins. */
856 stack_bottom
= &stack_bottom_variable
;
860 #ifndef SYSTEM_MALLOC
861 /* Arrange to get warning messages as memory fills up. */
862 memory_warnings (0, malloc_warning
);
864 /* Call malloc at least once, to run the initial __malloc_hook.
865 Also call realloc and free for consistency. */
866 free (realloc (malloc (4), 4));
869 /* Arrange to disable interrupt input inside malloc etc. */
870 uninterrupt_malloc ();
871 # endif /* not SYNC_INPUT */
872 #endif /* not SYSTEM_MALLOC */
874 #ifdef FORWARD_SIGNAL_TO_MAIN_THREAD
875 main_thread
= pthread_self ();
876 #endif /* FORWARD_SIGNAL_TO_MAIN_THREAD */
878 #if defined (MSDOS) || defined (WINDOWSNT)
879 /* We do all file input/output as binary files. When we need to translate
880 newlines, we do that manually. */
882 #endif /* MSDOS || WINDOWSNT */
885 if (!isatty (fileno (stdin
)))
886 setmode (fileno (stdin
), O_BINARY
);
887 if (!isatty (fileno (stdout
)))
890 setmode (fileno (stdout
), O_BINARY
);
894 /* Skip initial setlocale if LC_ALL is "C", as it's not needed in that case.
895 The build procedure uses this while dumping, to ensure that the
896 dumped Emacs does not have its system locale tables initialized,
897 as that might cause screwups when the dumped Emacs starts up. */
899 char *lc_all
= getenv ("LC_ALL");
900 do_initial_setlocale
= ! lc_all
|| strcmp (lc_all
, "C");
903 /* Set locale now, so that initial error messages are localized properly.
904 fixup_locale must wait until later, since it builds strings. */
905 if (do_initial_setlocale
)
906 setlocale (LC_ALL
, "");
908 inhibit_window_system
= 0;
910 /* Handle the -t switch, which specifies filename to use as terminal. */
914 if (argmatch (argv
, argc
, "-t", "--terminal", 4, &term
, &skip_args
))
919 result
= emacs_open (term
, O_RDWR
, 0);
920 if (result
< 0 || dup (0) < 0)
922 char *errstring
= strerror (errno
);
923 fprintf (stderr
, "%s: %s: %s\n", argv
[0], term
, errstring
);
928 fprintf (stderr
, "%s: %s: not a tty\n", argv
[0], term
);
931 fprintf (stderr
, "Using %s\n", term
);
932 #ifdef HAVE_WINDOW_SYSTEM
933 inhibit_window_system
= 1; /* -t => -nw */
940 /* Command line option --no-windows is deprecated and thus not mentioned
941 in the manual and usage informations. */
942 if (argmatch (argv
, argc
, "-nw", "--no-window-system", 6, NULL
, &skip_args
)
943 || argmatch (argv
, argc
, "-nw", "--no-windows", 6, NULL
, &skip_args
))
944 inhibit_window_system
= 1;
946 /* Handle the -batch switch, which means don't do interactive display. */
948 if (argmatch (argv
, argc
, "-batch", "--batch", 5, NULL
, &skip_args
))
951 Vundo_outer_limit
= Qnil
;
953 if (argmatch (argv
, argc
, "-script", "--script", 3, &junk
, &skip_args
))
955 noninteractive
= 1; /* Set batch mode. */
956 /* Convert --script to -scriptload, un-skip it, and sort again
957 so that it will be handled in proper sequence. */
958 /* FIXME broken for --script=FILE - is that supposed to work? */
959 argv
[skip_args
- 1] = (char *) "-scriptload";
961 sort_args (argc
, argv
);
964 /* Handle the --help option, which gives a usage message. */
965 if (argmatch (argv
, argc
, "-help", "--help", 3, NULL
, &skip_args
))
967 printf (USAGE1
, argv
[0], USAGE2
);
973 if (argmatch (argv
, argc
, "-daemon", "--daemon", 5, NULL
, &skip_args
)
974 || argmatch (argv
, argc
, "-daemon", "--daemon", 5, &dname_arg
, &skip_args
))
979 /* Start as a daemon: fork a new child process which will run the
980 rest of the initialization code, then exit.
982 Detaching a daemon requires the following steps:
986 - close the tty file-descriptors
988 We only want to do the last 2 steps once the daemon is ready to
989 serve requests, i.e. after loading .emacs (initialization).
990 OTOH initialization may start subprocesses (e.g. ispell) and these
991 should be run from the proper process (the one that will end up
992 running as daemon) and with the proper "session id" in order for
993 them to keep working after detaching, so fork and setsid need to be
994 performed before initialization.
996 We want to avoid exiting before the server socket is ready, so
997 use a pipe for synchronization. The parent waits for the child
998 to close its end of the pipe (using `daemon-initialized')
1000 if (pipe (daemon_pipe
) == -1)
1002 fprintf (stderr
, "Cannot pipe!\n");
1006 #ifndef NS_IMPL_COCOA
1008 fprintf (stderr
, "\nWarning: due to a long standing Gtk+ bug\nhttp://bugzilla.gnome.org/show_bug.cgi?id=85715\n\
1009 Emacs might crash when run in daemon mode and the X11 connection is unexpectedly lost.\n\
1010 Using an Emacs configured with --with-x-toolkit=lucid does not have this problem.\n");
1013 #else /* NS_IMPL_COCOA */
1014 /* Under Cocoa we must do fork+exec as CoreFoundation lib fails in
1015 forked process: http://developer.apple.com/ReleaseNotes/
1016 CoreFoundation/CoreFoundation.html)
1017 We mark being in the exec'd process by a daemon name argument of
1018 form "--daemon=\nFD0,FD1\nNAME" where FD are the pipe file descriptors,
1019 NAME is the original daemon name, if any. */
1020 if (!dname_arg
|| !strchr (dname_arg
, '\n'))
1021 f
= fork (); /* in orig */
1023 f
= 0; /* in exec'd */
1024 #endif /* NS_IMPL_COCOA */
1030 /* Close unused writing end of the pipe. */
1031 close (daemon_pipe
[1]);
1033 /* Just wait for the child to close its end of the pipe. */
1036 retval
= read (daemon_pipe
[0], &buf
, 1);
1038 while (retval
== -1 && errno
== EINTR
);
1042 fprintf (stderr
, "Error reading status from child\n");
1045 else if (retval
== 0)
1047 fprintf (stderr
, "Error: server did not start correctly\n");
1051 close (daemon_pipe
[0]);
1056 fprintf (stderr
, "Cannot fork!\n");
1060 #ifdef NS_IMPL_COCOA
1062 /* In orig process, forked as child, OR in exec'd. */
1063 if (!dname_arg
|| !strchr (dname_arg
, '\n'))
1064 { /* In orig, child: now exec w/special daemon name. */
1067 if (dname_arg
&& strlen (dname_arg
) > 70)
1069 fprintf (stderr
, "daemon: child name too long\n");
1073 sprintf (fdStr
, "--daemon=\n%d,%d\n%s", daemon_pipe
[0],
1074 daemon_pipe
[1], dname_arg
? dname_arg
: "");
1075 argv
[skip_args
] = fdStr
;
1077 execv (argv
[0], argv
);
1078 fprintf (stderr
, "emacs daemon: exec failed: %d\n", errno
);
1082 /* In exec'd: parse special dname into pipe and name info. */
1083 if (!dname_arg
|| !strchr (dname_arg
, '\n')
1084 || strlen (dname_arg
) < 1 || strlen (dname_arg
) > 70)
1086 fprintf (stderr
, "emacs daemon: daemon name absent or too long\n");
1089 dname_arg2
[0] = '\0';
1090 sscanf (dname_arg
, "\n%d,%d\n%s", &(daemon_pipe
[0]), &(daemon_pipe
[1]),
1092 dname_arg
= *dname_arg2
? dname_arg2
: NULL
;
1094 #endif /* NS_IMPL_COCOA */
1097 daemon_name
= xstrdup (dname_arg
);
1098 /* Close unused reading end of the pipe. */
1099 close (daemon_pipe
[0]);
1100 /* Make sure that the used end of the pipe is closed on exec, so
1101 that it is not accessible to programs started from .emacs. */
1102 fcntl (daemon_pipe
[1], F_SETFD
, FD_CLOEXEC
);
1108 fprintf (stderr
, "This platform does not support the -daemon flag.\n");
1113 if (! noninteractive
)
1115 #if defined (USG5) && defined (INTERRUPT_INPUT)
1118 #if defined (HAVE_GTK_AND_PTHREAD) && !defined (SYSTEM_MALLOC) && !defined (DOUG_LEA_MALLOC)
1120 extern void malloc_enable_thread (void);
1122 malloc_enable_thread ();
1129 /* Don't catch SIGHUP if dumping. */
1136 sigblock (sigmask (SIGHUP
));
1137 /* In --batch mode, don't catch SIGHUP if already ignored.
1138 That makes nohup work. */
1139 if (! noninteractive
1140 || signal (SIGHUP
, SIG_IGN
) != SIG_IGN
)
1141 signal (SIGHUP
, fatal_error_signal
);
1142 sigunblock (sigmask (SIGHUP
));
1147 ! noninteractive
|| initialized
1153 /* Don't catch these signals in batch mode if dumping.
1154 On some machines, this sets static data that would make
1155 signal fail to work right when the dumped Emacs is run. */
1156 signal (SIGQUIT
, fatal_error_signal
);
1157 signal (SIGILL
, fatal_error_signal
);
1158 signal (SIGTRAP
, fatal_error_signal
);
1160 add_user_signal (SIGUSR1
, "sigusr1");
1163 add_user_signal (SIGUSR2
, "sigusr2");
1166 signal (SIGABRT
, fatal_error_signal
);
1169 signal (SIGHWE
, fatal_error_signal
);
1172 signal (SIGPRE
, fatal_error_signal
);
1175 signal (SIGORE
, fatal_error_signal
);
1178 signal (SIGUME
, fatal_error_signal
);
1181 signal (SIGDLK
, fatal_error_signal
);
1184 signal (SIGCPULIM
, fatal_error_signal
);
1187 /* This is missing on some systems - OS/2, for example. */
1188 signal (SIGIOT
, fatal_error_signal
);
1191 signal (SIGEMT
, fatal_error_signal
);
1193 signal (SIGFPE
, fatal_error_signal
);
1195 signal (SIGBUS
, fatal_error_signal
);
1197 signal (SIGSEGV
, fatal_error_signal
);
1199 signal (SIGSYS
, fatal_error_signal
);
1201 /* May need special treatment on MS-Windows. See
1202 http://lists.gnu.org/archive/html/emacs-devel/2010-09/msg01062.html
1203 Please update the doc of kill-emacs, kill-emacs-hook, and
1204 NEWS if you change this.
1206 if (noninteractive
) signal (SIGINT
, fatal_error_signal
);
1207 signal (SIGTERM
, fatal_error_signal
);
1209 signal (SIGXCPU
, fatal_error_signal
);
1212 signal (SIGXFSZ
, fatal_error_signal
);
1213 #endif /* SIGXFSZ */
1216 /* This just means available memory is getting low. */
1217 signal (SIGDANGER
, memory_warning_signal
);
1221 /* 20 is SIGCHLD, 21 is SIGTTIN, 22 is SIGTTOU. */
1222 signal (SIGXCPU
, fatal_error_signal
);
1223 signal (SIGIOINT
, fatal_error_signal
);
1224 signal (SIGGRANT
, fatal_error_signal
);
1225 signal (SIGRETRACT
, fatal_error_signal
);
1226 signal (SIGSOUND
, fatal_error_signal
);
1227 signal (SIGMSG
, fatal_error_signal
);
1231 noninteractive1
= noninteractive
;
1233 /* Perform basic initializations (not merely interning symbols). */
1240 init_character_once ();
1241 init_charset_once ();
1242 init_coding_once ();
1243 init_syntax_once (); /* Create standard syntax table. */
1244 init_category_once (); /* Create standard category table. */
1245 /* Must be done before init_buffer. */
1246 init_casetab_once ();
1247 init_buffer_once (); /* Create buffer table and some buffers. */
1248 init_minibuf_once (); /* Create list of minibuffers. */
1249 /* Must precede init_window_once. */
1251 /* Call syms_of_xfaces before init_window_once because that
1252 function creates Vterminal_frame. Termcap frames now use
1253 faces, and the face implementation uses some symbols as
1256 /* XXX syms_of_keyboard uses some symbols in keymap.c. It would
1257 be better to arrange things not to have this dependency. */
1259 /* Call syms_of_keyboard before init_window_once because
1260 keyboard sets up symbols that include some face names that
1261 the X support will want to use. This can happen when
1262 CANNOT_DUMP is defined. */
1263 syms_of_keyboard ();
1265 /* Called before syms_of_fileio, because it sets up Qerror_condition. */
1268 /* Before syms_of_coding to initialize Vgc_cons_threshold. */
1270 /* Before syms_of_coding because it initializes Qcharsetp. */
1272 /* Before init_window_once, because it sets up the
1273 Vcoding_system_hash_table. */
1274 syms_of_coding (); /* This should be after syms_of_fileio. */
1276 init_window_once (); /* Init the window system. */
1277 #ifdef HAVE_WINDOW_SYSTEM
1278 init_fringe_once (); /* Swap bitmaps if necessary. */
1279 #endif /* HAVE_WINDOW_SYSTEM */
1284 if (do_initial_setlocale
)
1287 Vsystem_messages_locale
= Vprevious_system_messages_locale
;
1288 Vsystem_time_locale
= Vprevious_system_time_locale
;
1293 #ifdef CLASH_DETECTION
1297 running_asynch_code
= 0;
1300 = argmatch (argv
, argc
, "-nl", "--no-loadup", 6, NULL
, &skip_args
);
1303 = argmatch (argv
, argc
, "-nsl", "--no-site-lisp", 11, NULL
, &skip_args
);
1306 ns_alloc_autorelease_pool();
1307 if (!noninteractive
)
1309 #ifdef NS_IMPL_COCOA
1310 if (skip_args
< argc
)
1312 /* FIXME: Do the right thing if getenv returns NULL, or if
1314 if (!strncmp(argv
[skip_args
], "-psn", 4))
1317 chdir (getenv ("HOME"));
1319 else if (skip_args
+1 < argc
&& !strncmp(argv
[skip_args
+1], "-psn", 4))
1322 chdir (getenv ("HOME"));
1327 #endif /* HAVE_NS */
1329 #ifdef HAVE_X_WINDOWS
1330 /* Stupid kludge to catch command-line display spec. We can't
1331 handle this argument entirely in window system dependent code
1332 because we don't even know which window system dependent code
1333 to run until we've recognized this argument. */
1335 char *displayname
= 0;
1336 int count_before
= skip_args
;
1338 /* Skip any number of -d options, but only use the last one. */
1341 int count_before_this
= skip_args
;
1343 if (argmatch (argv
, argc
, "-d", "--display", 3, &displayname
, &skip_args
))
1345 else if (argmatch (argv
, argc
, "-display", 0, 3, &displayname
, &skip_args
))
1350 count_before
= count_before_this
;
1353 /* If we have the form --display=NAME,
1354 convert it into -d name.
1355 This requires inserting a new element into argv. */
1356 if (displayname
!= 0 && skip_args
- count_before
== 1)
1358 char **new = (char **) xmalloc (sizeof (char *) * (argc
+ 2));
1361 for (j
= 0; j
< count_before
+ 1; j
++)
1363 new[count_before
+ 1] = (char *) "-d";
1364 new[count_before
+ 2] = displayname
;
1365 for (j
= count_before
+ 2; j
<argc
; j
++)
1366 new[j
+ 1] = argv
[j
];
1370 /* Change --display to -d, when its arg is separate. */
1371 else if (displayname
!= 0 && skip_args
> count_before
1372 && argv
[count_before
+ 1][1] == '-')
1373 argv
[count_before
+ 1] = (char *) "-d";
1377 if (argmatch (argv
, argc
, "-Q", "--quick", 3, NULL
, &skip_args
)
1378 || argmatch (argv
, argc
, "-quick", 0, 2, NULL
, &skip_args
))
1382 /* Don't actually discard this arg. */
1383 skip_args
= count_before
;
1385 #else /* !HAVE_X_WINDOWS */
1388 int count_before
= skip_args
;
1390 if (argmatch (argv
, argc
, "-Q", "--quick", 3, NULL
, &skip_args
)
1391 || argmatch (argv
, argc
, "-quick", 0, 2, NULL
, &skip_args
))
1394 skip_args
= count_before
;
1398 /* argmatch must not be used after here,
1399 except when bulding temacs
1400 because the -d argument has not been skipped in skip_args. */
1403 /* Call early 'cause init_environment needs it. */
1405 /* Set defaults for several environment variables. */
1407 init_environment (argc
, argv
, skip_args
);
1414 /* Initialize environment from registry settings. */
1415 init_environment (argv
);
1416 init_ntproc (); /* must precede init_editfns. */
1426 /* Initialize and GC-protect Vinitial_environment and
1427 Vprocess_environment before set_initial_environment fills them
1430 syms_of_callproc ();
1431 /* egetenv is a pretty low-level facility, which may get called in
1432 many circumstances; it seems flimsy to put off initializing it
1433 until calling init_callproc. Do not do it when dumping. */
1434 if (initialized
|| ((strcmp (argv
[argc
-1], "dump") != 0
1435 && strcmp (argv
[argc
-1], "bootstrap") != 0)))
1436 set_initial_environment ();
1438 /* AIX crashes are reported in system versions 3.2.3 and 3.2.4
1439 if this is not done. Do it after set_global_environment so that we
1440 don't pollute Vglobal_environment. */
1441 /* Setting LANG here will defeat the startup locale processing... */
1446 init_buffer (); /* Init default directory of main buffer. */
1448 init_callproc_1 (); /* Must precede init_cmdargs and init_sys_modes. */
1449 init_cmdargs (argc
, argv
, skip_args
); /* Must precede init_lread. */
1453 /* Erase any pre-dump messages in the message log, to avoid confusion. */
1454 Lisp_Object old_log_max
;
1455 old_log_max
= Vmessage_log_max
;
1456 XSETFASTINT (Vmessage_log_max
, 0);
1457 message_dolog ("", 0, 1, 0);
1458 Vmessage_log_max
= old_log_max
;
1461 init_callproc (); /* Must follow init_cmdargs but not init_sys_modes. */
1464 /* Intern the names of all standard functions and variables;
1465 define standard keys. */
1469 /* The basic levels of Lisp must come first. Note that
1470 syms_of_data and some others have already been called. */
1476 syms_of_floatfns ();
1479 syms_of_bytecode ();
1481 syms_of_casefiddle ();
1483 syms_of_category ();
1485 syms_of_character ();
1492 syms_of_filelock ();
1495 /* syms_of_keymap (); */
1503 syms_of_terminal ();
1509 syms_of_textprop ();
1510 syms_of_composite ();
1513 #endif /* WINDOWSNT */
1517 #ifdef HAVE_WINDOW_SYSTEM
1520 #endif /* HAVE_WINDOW_SYSTEM */
1521 #ifdef HAVE_X_WINDOWS
1527 syms_of_xsettings ();
1534 #endif /* HAVE_X_WINDOWS */
1545 syms_of_w32select ();
1548 #endif /* HAVE_NTGUI */
1554 syms_of_win16select();
1561 syms_of_nsselect ();
1563 #endif /* HAVE_NS */
1570 syms_of_dbusbind ();
1571 #endif /* HAVE_DBUS */
1575 #endif /* WINDOWSNT */
1577 keys_of_casefiddle ();
1580 keys_of_keyboard ();
1586 /* Initialization that must be done even if the global variable
1587 initialized is non zero. */
1589 globals_of_w32fns ();
1590 globals_of_w32menu ();
1591 globals_of_w32select ();
1592 #endif /* HAVE_NTGUI */
1597 init_editfns (); /* init_process uses Voperating_system_release. */
1598 init_process (); /* init_display uses add_keyboard_wait_descriptor. */
1599 init_keyboard (); /* This too must precede init_sys_modes. */
1600 if (!noninteractive
)
1601 init_display (); /* Determine terminal type. Calls init_sys_modes. */
1604 #ifdef HAVE_WINDOW_SYSTEM
1607 #endif /* HAVE_WINDOW_SYSTEM */
1619 /* Handle -l loadup, args passed by Makefile. */
1620 if (argmatch (argv
, argc
, "-l", "--load", 3, &file
, &skip_args
))
1621 Vtop_level
= Fcons (intern_c_string ("load"),
1622 Fcons (build_string (file
), Qnil
));
1623 /* Unless next switch is -nl, load "loadup.el" first thing. */
1625 Vtop_level
= Fcons (intern_c_string ("load"),
1626 Fcons (build_string ("loadup.el"), Qnil
));
1633 /* If the execution TZ happens to be the same as the dump TZ,
1634 change it to some other value and then change it back,
1635 to force the underlying implementation to reload the TZ info.
1636 This is needed on implementations that load TZ info from files,
1637 since the TZ file contents may differ between dump and execution. */
1638 char *tz
= getenv ("TZ");
1639 if (tz
&& !strcmp (tz
, dump_tz
))
1649 /* Set up for profiling. This is known to work on FreeBSD,
1650 GNU/Linux and MinGW. It might work on some other systems too.
1651 Give it a try and tell us if it works on your system. To compile
1652 for profiling, use the configure option --enable-profiling. */
1653 #if defined (__FreeBSD__) || defined (GNU_LINUX) || defined(__MINGW32__)
1657 extern void _mcleanup ();
1659 extern unsigned char etext
asm ("etext");
1663 #ifdef HAVE___EXECUTABLE_START
1664 /* This symbol is defined by GNU ld to the start of the text
1666 extern char __executable_start
[];
1668 extern void safe_bcopy ();
1672 #ifdef HAVE___EXECUTABLE_START
1673 monstartup (__executable_start
, &etext
);
1675 /* This uses safe_bcopy because that function comes first in the
1676 Emacs executable. It might be better to use something that
1677 gives the start of the text segment, but start_of_text is not
1678 defined on all systems now. */
1679 /* FIXME: Does not work on architectures with function
1681 monstartup (safe_bcopy
, &etext
);
1691 #ifdef LOCALTIME_CACHE
1692 /* Some versions of localtime have a bug. They cache the value of the time
1693 zone rather than looking it up every time. Since localtime() is
1694 called to bolt the undumping time into the undumped emacs, this
1695 results in localtime ignoring the TZ environment variable.
1696 This flushes the new TZ value into localtime. */
1698 #endif /* defined (LOCALTIME_CACHE) */
1700 /* Enter editor command loop. This never returns. */
1706 /* Sort the args so we can find the most important ones
1707 at the beginning of argv. */
1709 /* First, here's a table of all the standard options. */
1711 struct standard_args
1714 const char *longname
;
1719 static const struct standard_args standard_args
[] =
1721 { "-version", "--version", 150, 0 },
1722 { "-chdir", "--chdir", 130, 1 },
1723 { "-t", "--terminal", 120, 1 },
1724 { "-nw", "--no-window-system", 110, 0 },
1725 { "-nw", "--no-windows", 110, 0 },
1726 { "-batch", "--batch", 100, 0 },
1727 { "-script", "--script", 100, 1 },
1728 { "-daemon", "--daemon", 99, 0 },
1729 { "-help", "--help", 90, 0 },
1730 { "-nl", "--no-loadup", 70, 0 },
1731 { "-nsl", "--no-site-lisp", 65, 0 },
1732 /* -d must come last before the options handled in startup.el. */
1733 { "-d", "--display", 60, 1 },
1734 { "-display", 0, 60, 1 },
1735 /* Now for the options handled in `command-line' (startup.el). */
1736 /* (Note that to imply -nsl, -Q is partially handled here.) */
1737 { "-Q", "--quick", 55, 0 },
1738 { "-quick", 0, 55, 0 },
1739 { "-q", "--no-init-file", 50, 0 },
1740 { "-no-init-file", 0, 50, 0 },
1741 { "-no-site-file", "--no-site-file", 40, 0 },
1742 { "-u", "--user", 30, 1 },
1743 { "-user", 0, 30, 1 },
1744 { "-debug-init", "--debug-init", 20, 0 },
1745 { "-iconic", "--iconic", 15, 0 },
1746 { "-D", "--basic-display", 12, 0},
1747 { "-basic-display", 0, 12, 0},
1748 { "-nbc", "--no-blinking-cursor", 12, 0 },
1749 /* Now for the options handled in `command-line-1' (startup.el). */
1750 { "-nbi", "--no-bitmap-icon", 10, 0 },
1751 { "-bg", "--background-color", 10, 1 },
1752 { "-background", 0, 10, 1 },
1753 { "-fg", "--foreground-color", 10, 1 },
1754 { "-foreground", 0, 10, 1 },
1755 { "-bd", "--border-color", 10, 1 },
1756 { "-bw", "--border-width", 10, 1 },
1757 { "-ib", "--internal-border", 10, 1 },
1758 { "-ms", "--mouse-color", 10, 1 },
1759 { "-cr", "--cursor-color", 10, 1 },
1760 { "-fn", "--font", 10, 1 },
1761 { "-font", 0, 10, 1 },
1762 { "-fs", "--fullscreen", 10, 0 },
1763 { "-fw", "--fullwidth", 10, 0 },
1764 { "-fh", "--fullheight", 10, 0 },
1765 { "-mm", "--maximized", 10, 0 },
1766 { "-g", "--geometry", 10, 1 },
1767 { "-geometry", 0, 10, 1 },
1768 { "-T", "--title", 10, 1 },
1769 { "-title", 0, 10, 1 },
1770 { "-name", "--name", 10, 1 },
1771 { "-xrm", "--xrm", 10, 1 },
1772 { "-parent-id", "--parent-id", 10, 1 },
1773 { "-r", "--reverse-video", 5, 0 },
1775 { "-reverse", 0, 5, 0 },
1776 { "-hb", "--horizontal-scroll-bars", 5, 0 },
1777 { "-vb", "--vertical-scroll-bars", 5, 0 },
1778 { "-color", "--color", 5, 0},
1779 { "-no-splash", "--no-splash", 3, 0 },
1780 { "-no-desktop", "--no-desktop", 3, 0 },
1782 { "-NSAutoLaunch", 0, 5, 1 },
1783 { "-NXAutoLaunch", 0, 5, 1 },
1784 { "-disable-font-backend", "--disable-font-backend", 65, 0 },
1785 { "-_NSMachLaunch", 0, 85, 1 },
1786 { "-MachLaunch", 0, 85, 1 },
1787 { "-macosx", 0, 85, 0 },
1788 { "-NSHost", 0, 85, 1 },
1790 /* These have the same priority as ordinary file name args,
1791 so they are not reordered with respect to those. */
1792 { "-L", "--directory", 0, 1 },
1793 { "-directory", 0, 0, 1 },
1794 { "-l", "--load", 0, 1 },
1795 { "-load", 0, 0, 1 },
1796 /* This has no longname, because using --scriptload confuses sort_args,
1797 because then the --script long option seems to match twice; ie
1798 you can't have a long option which is a prefix of another long
1799 option. In any case, this is entirely an internal option. */
1800 { "-scriptload", NULL
, 0, 1 },
1801 { "-f", "--funcall", 0, 1 },
1802 { "-funcall", 0, 0, 1 },
1803 { "-eval", "--eval", 0, 1 },
1804 { "-execute", "--execute", 0, 1 },
1805 { "-find-file", "--find-file", 0, 1 },
1806 { "-visit", "--visit", 0, 1 },
1807 { "-file", "--file", 0, 1 },
1808 { "-insert", "--insert", 0, 1 },
1810 { "-NXOpen", 0, 0, 1 },
1811 { "-NXOpenTemp", 0, 0, 1 },
1812 { "-NSOpen", 0, 0, 1 },
1813 { "-NSOpenTemp", 0, 0, 1 },
1814 { "-GSFilePath", 0, 0, 1 },
1816 /* This should be processed after ordinary file name args and the like. */
1817 { "-kill", "--kill", -10, 0 },
1820 /* Reorder the elements of ARGV (assumed to have ARGC elements)
1821 so that the highest priority ones come first.
1822 Do not change the order of elements of equal priority.
1823 If an option takes an argument, keep it and its argument together.
1825 If an option that takes no argument appears more
1826 than once, eliminate all but one copy of it. */
1829 sort_args (int argc
, char **argv
)
1831 char **new = (char **) xmalloc (sizeof (char *) * argc
);
1832 /* For each element of argv,
1833 the corresponding element of options is:
1834 0 for an option that takes no arguments,
1835 1 for an option that takes one argument, etc.
1836 -1 for an ordinary non-option argument. */
1837 int *options
= (int *) xmalloc (sizeof (int) * argc
);
1838 int *priority
= (int *) xmalloc (sizeof (int) * argc
);
1840 int incoming_used
= 1;
1844 /* Categorize all the options,
1845 and figure out which argv elts are option arguments. */
1846 for (from
= 1; from
< argc
; from
++)
1850 if (argv
[from
][0] == '-')
1854 /* If we have found "--", don't consider
1855 any more arguments as options. */
1856 if (argv
[from
][1] == '-' && argv
[from
][2] == 0)
1858 /* Leave the "--", and everything following it, at the end. */
1859 for (; from
< argc
; from
++)
1861 priority
[from
] = -100;
1867 /* Look for a match with a known old-fashioned option. */
1868 for (i
= 0; i
< sizeof (standard_args
) / sizeof (standard_args
[0]); i
++)
1869 if (!strcmp (argv
[from
], standard_args
[i
].name
))
1871 options
[from
] = standard_args
[i
].nargs
;
1872 priority
[from
] = standard_args
[i
].priority
;
1873 if (from
+ standard_args
[i
].nargs
>= argc
)
1874 fatal ("Option `%s' requires an argument\n", argv
[from
]);
1875 from
+= standard_args
[i
].nargs
;
1879 /* Look for a match with a known long option.
1880 MATCH is -1 if no match so far, -2 if two or more matches so far,
1881 >= 0 (the table index of the match) if just one match so far. */
1882 if (argv
[from
][1] == '-')
1884 char const *equals
= strchr (argv
[from
], '=');
1886 equals
? equals
- argv
[from
] : strlen (argv
[from
]);
1891 i
< sizeof (standard_args
) / sizeof (standard_args
[0]); i
++)
1892 if (standard_args
[i
].longname
1893 && !strncmp (argv
[from
], standard_args
[i
].longname
,
1902 /* If we found exactly one match, use that. */
1905 options
[from
] = standard_args
[match
].nargs
;
1906 priority
[from
] = standard_args
[match
].priority
;
1907 /* If --OPTION=VALUE syntax is used,
1908 this option uses just one argv element. */
1911 if (from
+ options
[from
] >= argc
)
1912 fatal ("Option `%s' requires an argument\n", argv
[from
]);
1913 from
+= options
[from
];
1915 /* FIXME When match < 0, shouldn't there be some error,
1916 or at least indication to the user that there was a
1923 /* Copy the arguments, in order of decreasing priority, to NEW. */
1925 while (incoming_used
< argc
)
1928 int best_priority
= -9999;
1930 /* Find the highest priority remaining option.
1931 If several have equal priority, take the first of them. */
1932 for (from
= 1; from
< argc
; from
++)
1934 if (argv
[from
] != 0 && priority
[from
] > best_priority
)
1936 best_priority
= priority
[from
];
1939 /* Skip option arguments--they are tied to the options. */
1940 if (options
[from
] > 0)
1941 from
+= options
[from
];
1947 /* Copy the highest priority remaining option, with its args, to NEW.
1948 Unless it is a duplicate of the previous one. */
1949 if (! (options
[best
] == 0
1950 && ! strcmp (new[to
- 1], argv
[best
])))
1952 new[to
++] = argv
[best
];
1953 for (i
= 0; i
< options
[best
]; i
++)
1954 new[to
++] = argv
[best
+ i
+ 1];
1957 incoming_used
+= 1 + (options
[best
] > 0 ? options
[best
] : 0);
1959 /* Clear out this option in ARGV. */
1961 for (i
= 0; i
< options
[best
]; i
++)
1962 argv
[best
+ i
+ 1] = 0;
1965 /* If duplicate options were deleted, fill up extra space with null ptrs. */
1969 memcpy (argv
, new, sizeof (char *) * argc
);
1976 DEFUN ("kill-emacs", Fkill_emacs
, Skill_emacs
, 0, 1, "P",
1977 doc
: /* Exit the Emacs job and kill it.
1978 If ARG is an integer, return ARG as the exit program code.
1979 If ARG is a string, stuff it as keyboard input.
1981 This function is called upon receipt of the signals SIGTERM
1982 or SIGHUP, and upon SIGINT in batch mode.
1984 The value of `kill-emacs-hook', if not void,
1985 is a list of functions (of no args),
1986 all of which are called before Emacs is actually killed. */)
1989 struct gcpro gcpro1
;
1997 hook
= intern ("kill-emacs-hook");
1998 Frun_hooks (1, &hook
);
2002 #ifdef HAVE_X_WINDOWS
2003 /* Transfer any clipboards we own to the clipboard manager. */
2004 x_clipboard_manager_save_all ();
2007 shut_down_emacs (0, 0, STRINGP (arg
) ? arg
: Qnil
);
2009 /* If we have an auto-save list file,
2010 kill it because we are exiting Emacs deliberately (not crashing).
2011 Do it after shut_down_emacs, which does an auto-save. */
2012 if (STRINGP (Vauto_save_list_file_name
))
2013 unlink (SSDATA (Vauto_save_list_file_name
));
2015 exit (INTEGERP (arg
) ? XINT (arg
) : EXIT_SUCCESS
);
2019 /* Perform an orderly shutdown of Emacs. Autosave any modified
2020 buffers, kill any child processes, clean up the terminal modes (if
2021 we're in the foreground), and other stuff like that. Don't perform
2022 any redisplay; this may be called when Emacs is shutting down in
2023 the background, or after its X connection has died.
2025 If SIG is a signal number, print a message for it.
2027 This is called by fatal signal handlers, X protocol error handlers,
2031 shut_down_emacs (int sig
, int no_x
, Lisp_Object stuff
)
2033 /* Prevent running of hooks from now on. */
2036 /* Don't update display from now on. */
2037 Vinhibit_redisplay
= Qt
;
2039 /* If we are controlling the terminal, reset terminal modes. */
2042 int pgrp
= EMACS_GETPGRP (0);
2043 int tpgrp
= tcgetpgrp (0);
2044 if ((tpgrp
!= -1) && tpgrp
== pgrp
)
2046 reset_all_sys_modes ();
2047 if (sig
&& sig
!= SIGTERM
)
2048 fprintf (stderr
, "Fatal error (%d)", sig
);
2053 reset_all_sys_modes ();
2056 stuff_buffered_input (stuff
);
2058 inhibit_sentinels
= 1;
2059 kill_buffer_processes (Qnil
);
2060 Fdo_auto_save (Qt
, Qnil
);
2062 #ifdef CLASH_DETECTION
2063 unlock_all_files ();
2066 #if 0 /* This triggers a bug in XCloseDisplay and is not needed. */
2067 #ifdef HAVE_X_WINDOWS
2068 /* It's not safe to call intern here. Maybe we are crashing. */
2069 if (!noninteractive
&& SYMBOLP (Vinitial_window_system
)
2070 && SCHARS (SYMBOL_NAME (Vinitial_window_system
)) == 1
2071 && SREF (SYMBOL_NAME (Vinitial_window_system
), 0) == 'x'
2073 Fx_close_current_connection ();
2074 #endif /* HAVE_X_WINDOWS */
2078 /* There is a tendency for a SIGIO signal to arrive within exit,
2079 and cause a SIGHUP because the input descriptor is already closed. */
2081 signal (SIGIO
, SIG_IGN
);
2088 /* Do this only if terminating normally, we want glyph matrices
2089 etc. in a core dump. */
2090 if (sig
== 0 || sig
== SIGTERM
)
2092 check_glyph_memory ();
2093 check_message_stack ();
2101 ns_term_shutdown (sig
);
2111 DEFUN ("dump-emacs", Fdump_emacs
, Sdump_emacs
, 2, 2, 0,
2112 doc
: /* Dump current state of Emacs into executable file FILENAME.
2113 Take symbols from SYMFILE (presumably the file you executed to run Emacs).
2114 This is used in the file `loadup.el' when building Emacs.
2116 You must run Emacs in batch mode in order to dump it. */)
2117 (Lisp_Object filename
, Lisp_Object symfile
)
2121 int count
= SPECPDL_INDEX ();
2125 if (! noninteractive
)
2126 error ("Dumping Emacs works only in batch mode");
2130 /* Warn if the gap between BSS end and heap start is larger than this. */
2131 # define MAX_HEAP_BSS_DIFF (1024*1024)
2133 if (heap_bss_diff
> MAX_HEAP_BSS_DIFF
)
2135 fprintf (stderr
, "**************************************************\n");
2136 fprintf (stderr
, "Warning: Your system has a gap between BSS and the\n");
2137 fprintf (stderr
, "heap (%lu bytes). This usually means that exec-shield\n",
2139 fprintf (stderr
, "or something similar is in effect. The dump may\n");
2140 fprintf (stderr
, "fail because of this. See the section about\n");
2141 fprintf (stderr
, "exec-shield in etc/PROBLEMS for more information.\n");
2142 fprintf (stderr
, "**************************************************\n");
2144 #endif /* GNU_LINUX */
2146 /* Bind `command-line-processed' to nil before dumping,
2147 so that the dumped Emacs will process its command line
2148 and set up to work with X windows if appropriate. */
2149 symbol
= intern ("command-line-processed");
2150 specbind (symbol
, Qnil
);
2152 CHECK_STRING (filename
);
2153 filename
= Fexpand_file_name (filename
, Qnil
);
2154 if (!NILP (symfile
))
2156 CHECK_STRING (symfile
);
2157 if (SCHARS (symfile
))
2158 symfile
= Fexpand_file_name (symfile
, Qnil
);
2162 Vpurify_flag
= Qnil
;
2165 set_time_zone_rule (dump_tz
);
2166 #ifndef LOCALTIME_CACHE
2167 /* Force a tz reload, since set_time_zone_rule doesn't. */
2173 /* Tell malloc where start of impure now is. */
2174 /* Also arrange for warnings when nearly out of space. */
2175 #ifndef SYSTEM_MALLOC
2177 /* On Windows, this was done before dumping, and that once suffices.
2178 Meanwhile, my_edata is not valid on Windows. */
2180 extern char my_edata
[];
2181 memory_warnings (my_edata
, malloc_warning
);
2183 #endif /* not WINDOWSNT */
2184 #if defined (HAVE_GTK_AND_PTHREAD) && !defined SYNC_INPUT
2185 /* Pthread may call malloc before main, and then we will get an endless
2186 loop, because pthread_self (see alloc.c) calls malloc the first time
2187 it is called on some systems. */
2188 reset_malloc_hooks ();
2190 #endif /* not SYSTEM_MALLOC */
2191 #ifdef DOUG_LEA_MALLOC
2192 malloc_state_ptr
= malloc_get_state ();
2195 #ifdef USE_MMAP_FOR_BUFFERS
2198 unexec (SSDATA (filename
), !NILP (symfile
) ? SSDATA (symfile
) : 0);
2199 #ifdef USE_MMAP_FOR_BUFFERS
2202 #ifdef DOUG_LEA_MALLOC
2203 free (malloc_state_ptr
);
2208 return unbind_to (count
, Qnil
);
2211 #endif /* not CANNOT_DUMP */
2214 /* Recover from setlocale (LC_ALL, ""). */
2218 /* The Emacs Lisp reader needs LC_NUMERIC to be "C",
2219 so that numbers are read and printed properly for Emacs Lisp. */
2220 setlocale (LC_NUMERIC
, "C");
2223 /* Set system locale CATEGORY, with previous locale *PLOCALE, to
2226 synchronize_locale (int category
, Lisp_Object
*plocale
, Lisp_Object desired_locale
)
2228 if (! EQ (*plocale
, desired_locale
))
2230 *plocale
= desired_locale
;
2231 setlocale (category
, (STRINGP (desired_locale
)
2232 ? SSDATA (desired_locale
)
2237 /* Set system time locale to match Vsystem_time_locale, if possible. */
2239 synchronize_system_time_locale (void)
2241 synchronize_locale (LC_TIME
, &Vprevious_system_time_locale
,
2242 Vsystem_time_locale
);
2245 /* Set system messages locale to match Vsystem_messages_locale, if
2248 synchronize_system_messages_locale (void)
2251 synchronize_locale (LC_MESSAGES
, &Vprevious_system_messages_locale
,
2252 Vsystem_messages_locale
);
2255 #endif /* HAVE_SETLOCALE */
2262 decode_env_path (const char *evarname
, const char *defalt
)
2264 const char *path
, *p
;
2265 Lisp_Object lpath
, element
, tem
;
2267 /* It's okay to use getenv here, because this function is only used
2268 to initialize variables when Emacs starts up, and isn't called
2271 path
= getenv (evarname
);
2277 /* Ensure values from the environment use the proper directory separator. */
2280 char *path_copy
= alloca (strlen (path
) + 1);
2281 strcpy (path_copy
, path
);
2282 dostounix_filename (path_copy
);
2289 p
= strchr (path
, SEPCHAR
);
2291 p
= path
+ strlen (path
);
2292 element
= (p
- path
? make_string (path
, p
- path
)
2293 : build_string ("."));
2295 /* Add /: to the front of the name
2296 if it would otherwise be treated as magic. */
2297 tem
= Ffind_file_name_handler (element
, Qt
);
2299 /* However, if the handler says "I'm safe",
2300 don't bother adding /:. */
2304 prop
= Fget (tem
, intern ("safe-magic"));
2310 element
= concat2 (build_string ("/:"), element
);
2312 lpath
= Fcons (element
, lpath
);
2318 return Fnreverse (lpath
);
2321 DEFUN ("daemonp", Fdaemonp
, Sdaemonp
, 0, 0, 0,
2322 doc
: /* Return non-nil if the current emacs process is a daemon.
2323 If the daemon was given a name argument, return that name. */)
2328 return build_string (daemon_name
);
2335 DEFUN ("daemon-initialized", Fdaemon_initialized
, Sdaemon_initialized
, 0, 0, 0,
2336 doc
: /* Mark the Emacs daemon as being initialized.
2337 This finishes the daemonization process by doing the other half of detaching
2338 from the parent process and its tty file descriptors. */)
2345 error ("This function can only be called if emacs is run as a daemon");
2347 if (daemon_pipe
[1] < 0)
2348 error ("The daemon has already been initialized");
2350 if (NILP (Vafter_init_time
))
2351 error ("This function can only be called after loading the init files");
2353 /* Get rid of stdin, stdout and stderr. */
2354 nfd
= open ("/dev/null", O_RDWR
);
2356 err
|= dup2 (nfd
, 0) < 0;
2357 err
|= dup2 (nfd
, 1) < 0;
2358 err
|= dup2 (nfd
, 2) < 0;
2359 err
|= close (nfd
) != 0;
2361 /* Closing the pipe will notify the parent that it can exit.
2362 FIXME: In case some other process inherited the pipe, closing it here
2363 won't notify the parent because it's still open elsewhere, so we
2364 additionally send a byte, just to make sure the parent really exits.
2365 Instead, we should probably close the pipe in start-process and
2366 call-process to make sure the pipe is never inherited by
2368 err
|= write (daemon_pipe
[1], "\n", 1) < 0;
2369 err
|= close (daemon_pipe
[1]) != 0;
2370 /* Set it to an invalid value so we know we've already run this function. */
2371 daemon_pipe
[1] = -1;
2374 error ("I/O error during daemon initialization");
2379 syms_of_emacs (void)
2381 Qfile_name_handler_alist
= intern_c_string ("file-name-handler-alist");
2382 staticpro (&Qfile_name_handler_alist
);
2383 Qrisky_local_variable
= intern_c_string ("risky-local-variable");
2384 staticpro (&Qrisky_local_variable
);
2387 defsubr (&Sdump_emacs
);
2390 defsubr (&Skill_emacs
);
2392 defsubr (&Sinvocation_name
);
2393 defsubr (&Sinvocation_directory
);
2394 defsubr (&Sdaemonp
);
2395 defsubr (&Sdaemon_initialized
);
2397 DEFVAR_LISP ("command-line-args", Vcommand_line_args
,
2398 doc
: /* Args passed by shell to Emacs, as a list of strings.
2399 Many arguments are deleted from the list as they are processed. */);
2401 DEFVAR_LISP ("system-type", Vsystem_type
,
2402 doc
: /* The value is a symbol indicating the type of operating system you are using.
2404 `gnu' compiled for a GNU Hurd system.
2405 `gnu/linux' compiled for a GNU/Linux system.
2406 `gnu/kfreebsd' compiled for a GNU system with a FreeBSD kernel.
2407 `darwin' compiled for Darwin (GNU-Darwin, Mac OS X, ...).
2408 `ms-dos' compiled as an MS-DOS application.
2409 `windows-nt' compiled as a native W32 application.
2410 `cygwin' compiled using the Cygwin library.
2411 Anything else (in Emacs 24.1, the possibilities are: aix, berkeley-unix,
2412 hpux, irix, usg-unix-v) indicates some sort of Unix system. */);
2413 Vsystem_type
= intern_c_string (SYSTEM_TYPE
);
2414 /* The above values are from SYSTEM_TYPE in include files under src/s. */
2416 DEFVAR_LISP ("system-configuration", Vsystem_configuration
,
2417 doc
: /* Value is string indicating configuration Emacs was built for.
2418 On MS-Windows, the value reflects the OS flavor and version on which
2419 Emacs is running. */);
2420 Vsystem_configuration
= build_string (EMACS_CONFIGURATION
);
2422 DEFVAR_LISP ("system-configuration-options", Vsystem_configuration_options
,
2423 doc
: /* String containing the configuration options Emacs was built with. */);
2424 Vsystem_configuration_options
= build_string (EMACS_CONFIG_OPTIONS
);
2426 DEFVAR_BOOL ("noninteractive", noninteractive1
,
2427 doc
: /* Non-nil means Emacs is running without interactive terminal. */);
2429 DEFVAR_LISP ("kill-emacs-hook", Vkill_emacs_hook
,
2430 doc
: /* Hook to be run when `kill-emacs' is called.
2431 Since `kill-emacs' may be invoked when the terminal is disconnected (or
2432 in other similar situations), functions placed on this hook should not
2433 expect to be able to interact with the user. To ask for confirmation,
2434 see `kill-emacs-query-functions' instead.
2436 Before Emacs 24.1, the hook was not run in batch mode, i.e., if
2437 `noninteractive' was non-nil. */);
2438 Vkill_emacs_hook
= Qnil
;
2440 DEFVAR_LISP ("path-separator", Vpath_separator
,
2441 doc
: /* String containing the character that separates directories in
2442 search paths, such as PATH and other similar environment variables. */);
2445 Vpath_separator
= make_string (&c
, 1);
2448 DEFVAR_LISP ("invocation-name", Vinvocation_name
,
2449 doc
: /* The program name that was used to run Emacs.
2450 Any directory names are omitted. */);
2452 DEFVAR_LISP ("invocation-directory", Vinvocation_directory
,
2453 doc
: /* The directory in which the Emacs executable was found, to run it.
2454 The value is nil if that directory's name is not known. */);
2456 DEFVAR_LISP ("installation-directory", Vinstallation_directory
,
2457 doc
: /* A directory within which to look for the `lib-src' and `etc' directories.
2458 This is non-nil when we can't find those directories in their standard
2459 installed locations, but we can find them near where the Emacs executable
2461 Vinstallation_directory
= Qnil
;
2463 DEFVAR_LISP ("system-messages-locale", Vsystem_messages_locale
,
2464 doc
: /* System locale for messages. */);
2465 Vsystem_messages_locale
= Qnil
;
2467 DEFVAR_LISP ("previous-system-messages-locale",
2468 Vprevious_system_messages_locale
,
2469 doc
: /* Most recently used system locale for messages. */);
2470 Vprevious_system_messages_locale
= Qnil
;
2472 DEFVAR_LISP ("system-time-locale", Vsystem_time_locale
,
2473 doc
: /* System locale for time. */);
2474 Vsystem_time_locale
= Qnil
;
2476 DEFVAR_LISP ("previous-system-time-locale", Vprevious_system_time_locale
,
2477 doc
: /* Most recently used system locale for time. */);
2478 Vprevious_system_time_locale
= Qnil
;
2480 DEFVAR_LISP ("before-init-time", Vbefore_init_time
,
2481 doc
: /* Value of `current-time' before Emacs begins initialization. */);
2482 Vbefore_init_time
= Qnil
;
2484 DEFVAR_LISP ("after-init-time", Vafter_init_time
,
2485 doc
: /* Value of `current-time' after loading the init files.
2486 This is nil during initialization. */);
2487 Vafter_init_time
= Qnil
;
2489 DEFVAR_BOOL ("inhibit-x-resources", inhibit_x_resources
,
2490 doc
: /* If non-nil, X resources, Windows Registry settings, and NS defaults are not used. */);
2491 inhibit_x_resources
= 0;
2493 DEFVAR_LISP ("emacs-copyright", Vemacs_copyright
,
2494 doc
: /* Short copyright string for this version of Emacs. */);
2495 Vemacs_copyright
= build_string (emacs_copyright
);
2497 DEFVAR_LISP ("emacs-version", Vemacs_version
,
2498 doc
: /* Version numbers of this version of Emacs. */);
2499 Vemacs_version
= build_string (emacs_version
);
2501 DEFVAR_LISP ("dynamic-library-alist", Vdynamic_library_alist
,
2502 doc
: /* Alist of dynamic libraries vs external files implementing them.
2503 Each element is a list (LIBRARY FILE...), where the car is a symbol
2504 representing a supported external library, and the rest are strings giving
2505 alternate filenames for that library.
2507 Emacs tries to load the library from the files in the order they appear on
2508 the list; if none is loaded, the running session of Emacs won't have access
2511 Note that image types `pbm' and `xbm' do not need entries in this variable
2512 because they do not depend on external libraries and are always available.
2514 Also note that this is not a generic facility for accessing external
2515 libraries; only those already known by Emacs will be loaded. */);
2516 Vdynamic_library_alist
= Qnil
;
2517 Fput (intern_c_string ("dynamic-library-alist"), Qrisky_local_variable
, Qt
);
2519 /* Make sure IS_DAEMON starts up as false. */