1 /* Fully extensible Emacs, running on Unix, intended for GNU.
3 Copyright (C) 1985-1987, 1993-1995, 1997-1999, 2001-2012
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"
48 #include "character.h"
53 #include "blockinput.h"
54 #include "syssignal.h"
57 #include "termhooks.h"
69 #if (defined PROFILING \
70 && (defined __FreeBSD__ || defined GNU_LINUX || defined __MINGW32__))
71 # include <sys/gmon.h>
72 extern void moncontrol (int mode
);
85 #include <sys/resource.h>
88 #ifdef HAVE_PERSONALITY_LINUX32
89 #include <sys/personality.h>
96 static const char emacs_version
[] = VERSION
;
97 static const char emacs_copyright
[] = "Copyright (C) 2012 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 CHECK_LISP_OBJECT_TYPE
107 int gdb_use_struct EXTERNALLY_VISIBLE
= 0;
109 int gdb_use_struct EXTERNALLY_VISIBLE
= 1;
111 int gdb_valbits EXTERNALLY_VISIBLE
= VALBITS
;
112 int gdb_gctypebits EXTERNALLY_VISIBLE
= GCTYPEBITS
;
113 #if defined DATA_SEG_BITS && !USE_LSB_TAG
114 uintptr_t gdb_data_seg_bits EXTERNALLY_VISIBLE
= DATA_SEG_BITS
;
116 uintptr_t gdb_data_seg_bits EXTERNALLY_VISIBLE
= 0;
118 ptrdiff_t PVEC_FLAG EXTERNALLY_VISIBLE
= PSEUDOVECTOR_FLAG
;
119 ptrdiff_t 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
const gdb_pvec_type EXTERNALLY_VISIBLE
= 0;
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 Lisp_Object Qkill_emacs
;
155 /* If non-zero, Emacs should not attempt to use a window-specific code,
156 but instead should use the virtual terminal under which it was started. */
157 int inhibit_window_system
;
159 /* If non-zero, a filter or a sentinel is running. Tested to save the match
160 data on the first attempt to change it inside asynchronous code. */
161 int running_asynch_code
;
163 #if defined (HAVE_X_WINDOWS) || defined (HAVE_NS)
164 /* If non-zero, -d was specified, meaning we're using some window system. */
168 /* An address near the bottom of the stack.
169 Tells GC how to save a copy of the stack. */
172 #if defined (DOUG_LEA_MALLOC) || defined (GNU_LINUX)
173 /* The address where the heap starts (from the first sbrk (0) call). */
174 static void *my_heap_start
;
178 /* The gap between BSS end and heap start as far as we can tell. */
179 static uprintmax_t heap_bss_diff
;
182 /* Nonzero means running Emacs without interactive terminal. */
185 /* Nonzero means remove site-lisp directories from load-path. */
188 /* Name for the server started by the daemon.*/
189 static char *daemon_name
;
191 /* Pipe used to send exit notification to the daemon parent at
195 /* Save argv and argc. */
199 static void sort_args (int argc
, char **argv
);
200 static void syms_of_emacs (void);
202 /* MSVC needs each string be shorter than 2048 bytes, so the usage
203 strings below are split to not overflow this limit. */
205 Usage: %s [OPTION-OR-FILENAME]...\n\
207 Run Emacs, the extensible, customizable, self-documenting real-time\n\
208 display editor. The recommended way to start Emacs for normal editing\n\
209 is with no options at all.\n\
211 Run M-x info RET m emacs RET m emacs invocation RET inside Emacs to\n\
212 read the main documentation for these command-line arguments.\n\
214 Initialization options:\n\
216 --batch do not do interactive display; implies -q\n\
217 --chdir DIR change to directory DIR\n\
218 --daemon start a server in the background\n\
219 --debug-init enable Emacs Lisp debugger for init file\n\
220 --display, -d DISPLAY use X server DISPLAY\n\
221 --no-desktop do not load a saved desktop\n\
222 --no-init-file, -q load neither ~/.emacs nor default.el\n\
223 --no-shared-memory, -nl do not use shared memory\n\
224 --no-site-file do not load site-start.el\n\
225 --no-site-lisp, -nsl do not add site-lisp directories to load-path\n\
226 --no-splash do not display a splash screen on startup\n\
227 --no-window-system, -nw do not communicate with X, ignoring $DISPLAY\n\
228 --quick, -Q equivalent to:\n\
229 -q --no-site-file --no-site-lisp --no-splash\n\
230 --script FILE run FILE as an Emacs Lisp script\n\
231 --terminal, -t DEVICE use DEVICE for terminal I/O\n\
232 --user, -u USER load ~USER/.emacs instead of your own\n\
238 FILE visit FILE using find-file\n\
239 +LINE go to line LINE in next FILE\n\
240 +LINE:COLUMN go to line LINE, column COLUMN, in next FILE\n\
241 --directory, -L DIR add DIR to variable load-path\n\
242 --eval EXPR evaluate Emacs Lisp expression EXPR\n\
243 --execute EXPR evaluate Emacs Lisp expression EXPR\n\
244 --file FILE visit FILE using find-file\n\
245 --find-file FILE visit FILE using find-file\n\
246 --funcall, -f FUNC call Emacs Lisp function FUNC with no arguments\n\
247 --insert FILE insert contents of FILE into current buffer\n\
248 --kill exit without asking for confirmation\n\
249 --load, -l FILE load Emacs Lisp FILE using the load function\n\
250 --visit FILE visit FILE using find-file\n\
256 --background-color, -bg COLOR window background color\n\
257 --basic-display, -D disable many display features;\n\
258 used for debugging Emacs\n\
259 --border-color, -bd COLOR main border color\n\
260 --border-width, -bw WIDTH width of main border\n\
261 --color, --color=MODE override color mode for character terminals;\n\
262 MODE defaults to `auto', and\n\
263 can also be `never', `always',\n\
264 or a mode name like `ansi8'\n\
265 --cursor-color, -cr COLOR color of the Emacs cursor indicating point\n\
266 --font, -fn FONT default font; must be fixed-width\n\
267 --foreground-color, -fg COLOR window foreground color\n\
268 --fullheight, -fh make the first frame high as the screen\n\
269 --fullscreen, -fs make the first frame fullscreen\n\
270 --fullwidth, -fw make the first frame wide as the screen\n\
271 --maximized, -mm make the first frame maximized\n\
272 --geometry, -g GEOMETRY window geometry\n\
273 --no-bitmap-icon, -nbi do not use picture of gnu for Emacs icon\n\
274 --iconic start Emacs in iconified state\n\
275 --internal-border, -ib WIDTH width between text and main border\n\
276 --line-spacing, -lsp PIXELS additional space to put between lines\n\
277 --mouse-color, -ms COLOR mouse cursor color in Emacs window\n\
278 --name NAME title for initial Emacs frame\n\
279 --no-blinking-cursor, -nbc disable blinking cursor\n\
280 --reverse-video, -r, -rv switch foreground and background\n\
281 --title, -T TITLE title for initial Emacs frame\n\
282 --vertical-scroll-bars, -vb enable vertical scroll bars\n\
283 --xrm XRESOURCES set additional X resources\n\
284 --parent-id XID set parent window\n\
285 --help display this help and exit\n\
286 --version output version information and exit\n\
290 You can generally also specify long option names with a single -; for\n\
291 example, -batch as well as --batch. You can use any unambiguous\n\
292 abbreviation for a --option.\n\
294 Various environment variables and window system resources also affect\n\
295 Emacs' operation. See the main documentation.\n\
297 Report bugs to bug-gnu-emacs@gnu.org. First, please see the Bugs\n\
298 section of the Emacs manual or the file BUGS.\n"
301 /* Signal code for the fatal signal that was received. */
302 static int fatal_error_code
;
304 /* Nonzero if handling a fatal error already. */
305 int fatal_error_in_progress
;
307 /* If non-null, call this function from fatal_error_signal before
308 committing suicide. */
310 static void (*fatal_error_signal_hook
) (void);
312 #ifdef FORWARD_SIGNAL_TO_MAIN_THREAD
313 /* When compiled with GTK and running under Gnome,
314 multiple threads may be created. Keep track of our main
315 thread to make sure signals are delivered to it (see syssignal.h). */
317 pthread_t main_thread
;
321 /* NS autrelease pool, for memory management. */
322 static void *ns_pool
;
327 /* Handle bus errors, invalid instruction, etc. */
328 #ifndef FLOAT_CATCH_SIGILL
332 fatal_error_signal (int sig
)
334 SIGNAL_THREAD_CHECK (sig
);
335 fatal_error_code
= sig
;
336 signal (sig
, SIG_DFL
);
338 TOTALLY_UNBLOCK_INPUT
;
340 /* If fatal error occurs in code below, avoid infinite recursion. */
341 if (! fatal_error_in_progress
)
343 fatal_error_in_progress
= 1;
345 if (sig
== SIGTERM
|| sig
== SIGHUP
|| sig
== SIGINT
)
346 Fkill_emacs (make_number (sig
));
348 shut_down_emacs (sig
, 0, Qnil
);
351 /* Signal the same code; this time it will really be fatal.
352 Remember that since we're in a signal handler, the signal we're
353 going to send is probably blocked, so we have to unblock it if we
354 want to really receive it. */
356 sigunblock (sigmask (fatal_error_code
));
359 if (fatal_error_signal_hook
)
360 fatal_error_signal_hook ();
362 kill (getpid (), fatal_error_code
);
367 /* Handler for SIGDANGER. */
369 memory_warning_signal (int sig
)
371 signal (sig
, memory_warning_signal
);
372 SIGNAL_THREAD_CHECK (sig
);
374 malloc_warning ("Operating system warns that virtual memory is running low.\n");
376 /* It might be unsafe to call do_auto_save now. */
377 force_auto_save_soon ();
381 /* We define abort, rather than using it from the library,
382 so that GDB can return from a breakpoint here.
383 MSDOS has its own definition in msdos.c. */
385 #if ! defined (DOS_NT) && ! defined (NO_ABORT)
390 kill (getpid (), SIGABRT
);
391 /* This shouldn't be executed, but it prevents a warning. */
397 /* Code for dealing with Lisp access to the Unix command line. */
400 init_cmdargs (int argc
, char **argv
, int skip_args
)
403 Lisp_Object name
, dir
, handler
;
404 ptrdiff_t count
= SPECPDL_INDEX ();
405 Lisp_Object raw_name
;
410 raw_name
= build_string (argv
[0]);
412 /* Add /: to the front of the name
413 if it would otherwise be treated as magic. */
414 handler
= Ffind_file_name_handler (raw_name
, Qt
);
415 if (! NILP (handler
))
416 raw_name
= concat2 (build_string ("/:"), raw_name
);
418 Vinvocation_name
= Ffile_name_nondirectory (raw_name
);
419 Vinvocation_directory
= Ffile_name_directory (raw_name
);
421 /* If we got no directory in argv[0], search PATH to find where
422 Emacs actually came from. */
423 if (NILP (Vinvocation_directory
))
426 int yes
= openp (Vexec_path
, Vinvocation_name
,
427 Vexec_suffixes
, &found
, make_number (X_OK
));
430 /* Add /: to the front of the name
431 if it would otherwise be treated as magic. */
432 handler
= Ffind_file_name_handler (found
, Qt
);
433 if (! NILP (handler
))
434 found
= concat2 (build_string ("/:"), found
);
435 Vinvocation_directory
= Ffile_name_directory (found
);
439 if (!NILP (Vinvocation_directory
)
440 && NILP (Ffile_name_absolute_p (Vinvocation_directory
)))
441 /* Emacs was started with relative path, like ./emacs.
443 Vinvocation_directory
= Fexpand_file_name (Vinvocation_directory
, Qnil
);
445 Vinstallation_directory
= Qnil
;
447 if (!NILP (Vinvocation_directory
))
449 dir
= Vinvocation_directory
;
450 name
= Fexpand_file_name (Vinvocation_name
, dir
);
453 Lisp_Object tem
, lib_src_exists
;
454 Lisp_Object etc_exists
, info_exists
;
456 /* See if dir contains subdirs for use by Emacs.
457 Check for the ones that would exist in a build directory,
458 not including lisp and info. */
459 tem
= Fexpand_file_name (build_string ("lib-src"), dir
);
460 lib_src_exists
= Ffile_exists_p (tem
);
463 /* MSDOS installations frequently remove lib-src, but we still
464 must set installation-directory, or else info won't find
465 its files (it uses the value of installation-directory). */
466 tem
= Fexpand_file_name (build_string ("info"), dir
);
467 info_exists
= Ffile_exists_p (tem
);
472 if (!NILP (lib_src_exists
) || !NILP (info_exists
))
474 tem
= Fexpand_file_name (build_string ("etc"), dir
);
475 etc_exists
= Ffile_exists_p (tem
);
476 if (!NILP (etc_exists
))
478 Vinstallation_directory
479 = Ffile_name_as_directory (dir
);
484 /* See if dir's parent contains those subdirs. */
485 tem
= Fexpand_file_name (build_string ("../lib-src"), dir
);
486 lib_src_exists
= Ffile_exists_p (tem
);
490 /* See the MSDOS commentary above. */
491 tem
= Fexpand_file_name (build_string ("../info"), dir
);
492 info_exists
= Ffile_exists_p (tem
);
497 if (!NILP (lib_src_exists
) || !NILP (info_exists
))
499 tem
= Fexpand_file_name (build_string ("../etc"), dir
);
500 etc_exists
= Ffile_exists_p (tem
);
501 if (!NILP (etc_exists
))
503 tem
= Fexpand_file_name (build_string (".."), dir
);
504 Vinstallation_directory
505 = Ffile_name_as_directory (tem
);
510 /* If the Emacs executable is actually a link,
511 next try the dir that the link points into. */
512 tem
= Ffile_symlink_p (name
);
515 name
= Fexpand_file_name (tem
, dir
);
516 dir
= Ffile_name_directory (name
);
523 Vcommand_line_args
= Qnil
;
525 for (i
= argc
- 1; i
>= 0; i
--)
527 if (i
== 0 || i
> skip_args
)
528 /* For the moment, we keep arguments as is in unibyte strings.
529 They are decoded in the function command-line after we know
530 locale-coding-system. */
532 = Fcons (make_unibyte_string (argv
[i
], strlen (argv
[i
])),
536 unbind_to (count
, Qnil
);
539 DEFUN ("invocation-name", Finvocation_name
, Sinvocation_name
, 0, 0, 0,
540 doc
: /* Return the program name that was used to run Emacs.
541 Any directory names are omitted. */)
544 return Fcopy_sequence (Vinvocation_name
);
547 DEFUN ("invocation-directory", Finvocation_directory
, Sinvocation_directory
,
549 doc
: /* Return the directory name in which the Emacs executable was located. */)
552 return Fcopy_sequence (Vinvocation_directory
);
557 /* A valid but unlikely value for the TZ environment value.
558 It is OK (though a bit slower) if the user actually chooses this value. */
559 static char dump_tz
[] = "UtC0";
562 #ifndef ORDINARY_LINK
563 /* We don't include crtbegin.o and crtend.o in the link,
564 so these functions and variables might be missed.
565 Provide dummy definitions to avoid error.
566 (We don't have any real constructors or destructors.) */
569 /* Define a dummy function F. Declare F too, to pacify gcc
570 -Wmissing-prototypes. */
571 #define DEFINE_DUMMY_FUNCTION(f) \
572 void f (void) ATTRIBUTE_CONST EXTERNALLY_VISIBLE; void f (void) {}
574 #ifndef GCC_CTORS_IN_LIBC
575 DEFINE_DUMMY_FUNCTION (__do_global_ctors
)
576 DEFINE_DUMMY_FUNCTION (__do_global_ctors_aux
)
577 DEFINE_DUMMY_FUNCTION (__do_global_dtors
)
578 /* GNU/Linux has a bug in its library; avoid an error. */
580 char * __CTOR_LIST__
[2] EXTERNALLY_VISIBLE
= { (char *) (-1), 0 };
582 char * __DTOR_LIST__
[2] EXTERNALLY_VISIBLE
= { (char *) (-1), 0 };
583 #endif /* GCC_CTORS_IN_LIBC */
584 DEFINE_DUMMY_FUNCTION (__main
)
585 #endif /* __GNUC__ */
586 #endif /* ORDINARY_LINK */
588 /* Test whether the next argument in ARGV matches SSTR or a prefix of
589 LSTR (at least MINLEN characters). If so, then if VALPTR is non-null
590 (the argument is supposed to have a value) store in *VALPTR either
591 the next argument or the portion of this one after the equal sign.
592 ARGV is read starting at position *SKIPPTR; this index is advanced
593 by the number of arguments used.
595 Too bad we can't just use getopt for all of this, but we don't have
596 enough information to do it right. */
599 argmatch (char **argv
, int argc
, const char *sstr
, const char *lstr
,
600 int minlen
, char **valptr
, int *skipptr
)
606 /* Don't access argv[argc]; give up in advance. */
607 if (argc
<= *skipptr
+ 1)
610 arg
= argv
[*skipptr
+1];
613 if (strcmp (arg
, sstr
) == 0)
617 *valptr
= argv
[*skipptr
+2];
624 arglen
= (valptr
!= NULL
&& (p
= strchr (arg
, '=')) != NULL
625 ? p
- arg
: strlen (arg
));
626 if (lstr
== 0 || arglen
< minlen
|| strncmp (arg
, lstr
, arglen
) != 0)
628 else if (valptr
== NULL
)
639 else if (argv
[*skipptr
+2] != NULL
)
641 *valptr
= argv
[*skipptr
+2];
651 #ifdef DOUG_LEA_MALLOC
653 /* malloc can be invoked even before main (e.g. by the dynamic
654 linker), so the dumped malloc state must be restored as early as
655 possible using this special hook. */
658 malloc_initialize_hook (void)
661 extern char **environ
;
666 if (!malloc_using_checking
)
667 /* Work around a bug in glibc's malloc. MALLOC_CHECK_ must be
668 ignored if the heap to be restored was constructed without
669 malloc checking. Can't use unsetenv, since that calls malloc. */
673 for (p
= environ
; p
&& *p
; p
++)
674 if (strncmp (*p
, "MALLOC_CHECK_=", 14) == 0)
683 malloc_set_state (malloc_state_ptr
);
684 #ifndef XMALLOC_OVERRUN_CHECK
685 free (malloc_state_ptr
);
690 if (my_heap_start
== 0)
691 my_heap_start
= sbrk (0);
692 malloc_using_checking
= getenv ("MALLOC_CHECK_") != NULL
;
696 void (*__malloc_initialize_hook
) (void) EXTERNALLY_VISIBLE
= malloc_initialize_hook
;
698 #endif /* DOUG_LEA_MALLOC */
703 main (int argc
, char **argv
)
708 char stack_bottom_variable
;
709 int do_initial_setlocale
;
711 #ifdef HAVE_SETRLIMIT
726 #if defined (USE_GTK) && defined (G_SLICE_ALWAYS_MALLOC)
727 /* This is used by the Cygwin build. */
728 setenv ("G_SLICE", "always-malloc", 1);
734 extern char my_endbss
[];
735 extern char *my_endbss_static
;
737 if (my_heap_start
== 0)
738 my_heap_start
= sbrk (0);
740 heap_bss_diff
= (char *)my_heap_start
- max (my_endbss
, my_endbss_static
);
744 #ifdef RUN_TIME_REMAP
746 run_time_remap (argv
[0]);
749 /* If using unexmacosx.c (set by s/darwin.h), we must do this. */
752 unexec_init_emacs_zone ();
755 sort_args (argc
, argv
);
757 while (argv
[argc
]) argc
++;
759 if (argmatch (argv
, argc
, "-version", "--version", 3, NULL
, &skip_args
))
761 const char *version
, *copyright
;
764 Lisp_Object tem
, tem2
;
765 tem
= Fsymbol_value (intern_c_string ("emacs-version"));
766 tem2
= Fsymbol_value (intern_c_string ("emacs-copyright"));
769 fprintf (stderr
, "Invalid value of `emacs-version'\n");
774 fprintf (stderr
, "Invalid value of `emacs-copyright'\n");
779 version
= SSDATA (tem
);
780 copyright
= SSDATA (tem2
);
785 version
= emacs_version
;
786 copyright
= emacs_copyright
;
788 printf ("GNU Emacs %s\n", version
);
789 printf ("%s\n", copyright
);
790 printf ("GNU Emacs comes with ABSOLUTELY NO WARRANTY.\n");
791 printf ("You may redistribute copies of Emacs\n");
792 printf ("under the terms of the GNU General Public License.\n");
793 printf ("For more information about these matters, ");
794 printf ("see the file named COPYING.\n");
798 if (argmatch (argv
, argc
, "-chdir", "--chdir", 4, &ch_to_dir
, &skip_args
))
799 if (chdir (ch_to_dir
) == -1)
801 fprintf (stderr
, "%s: Can't chdir to %s: %s\n",
802 argv
[0], ch_to_dir
, strerror (errno
));
807 #ifdef HAVE_PERSONALITY_LINUX32
809 && (strcmp (argv
[argc
-1], "dump") == 0
810 || strcmp (argv
[argc
-1], "bootstrap") == 0)
811 && ! getenv ("EMACS_HEAP_EXEC"))
813 static char heapexec
[] = "EMACS_HEAP_EXEC=true";
814 /* Set this so we only do this once. */
817 /* A flag to turn off address randomization which is introduced
818 in linux kernel shipped with fedora core 4 */
819 #define ADD_NO_RANDOMIZE 0x0040000
820 personality (PER_LINUX32
| ADD_NO_RANDOMIZE
);
821 #undef ADD_NO_RANDOMIZE
823 execvp (argv
[0], argv
);
825 /* If the exec fails, try to dump anyway. */
828 #endif /* HAVE_PERSONALITY_LINUX32 */
830 #if defined (HAVE_SETRLIMIT) && defined (RLIMIT_STACK)
831 /* Extend the stack space available.
832 Don't do that if dumping, since some systems (e.g. DJGPP)
833 might define a smaller stack limit at that time. */
836 && (!noninteractive
|| initialized
)
838 && !getrlimit (RLIMIT_STACK
, &rlim
))
841 extern size_t re_max_failures
;
842 /* Approximate the amount regex.c needs per unit of re_max_failures. */
843 int ratio
= 20 * sizeof (char *);
844 /* Then add 33% to cover the size of the smaller stacks that regex.c
845 successively allocates and discards, on its way to the maximum. */
847 /* Add in some extra to cover
848 what we're likely to use for other reasons. */
849 newlim
= re_max_failures
* ratio
+ 200000;
851 /* NetBSD (at least NetBSD 1.2G and former) has a bug in its
852 stack allocation routine for new process that the allocation
853 fails if stack limit is not on page boundary. So, round up the
854 new limit to page boundary. */
855 newlim
= (newlim
+ getpagesize () - 1) / getpagesize () * getpagesize ();
857 if (newlim
> rlim
.rlim_max
)
859 newlim
= rlim
.rlim_max
;
860 /* Don't let regex.c overflow the stack we have. */
861 re_max_failures
= (newlim
- 200000) / ratio
;
863 if (rlim
.rlim_cur
< newlim
)
864 rlim
.rlim_cur
= newlim
;
866 setrlimit (RLIMIT_STACK
, &rlim
);
868 #endif /* HAVE_SETRLIMIT and RLIMIT_STACK */
870 /* Record (approximately) where the stack begins. */
871 stack_bottom
= &stack_bottom_variable
;
875 #ifndef SYSTEM_MALLOC
876 /* Arrange to get warning messages as memory fills up. */
877 memory_warnings (0, malloc_warning
);
879 /* Call malloc at least once, to run the initial __malloc_hook.
880 Also call realloc and free for consistency. */
881 free (realloc (malloc (4), 4));
884 /* Arrange to disable interrupt input inside malloc etc. */
885 uninterrupt_malloc ();
886 # endif /* not SYNC_INPUT */
887 #endif /* not SYSTEM_MALLOC */
889 #ifdef FORWARD_SIGNAL_TO_MAIN_THREAD
890 main_thread
= pthread_self ();
891 #endif /* FORWARD_SIGNAL_TO_MAIN_THREAD */
893 #if defined (MSDOS) || defined (WINDOWSNT)
894 /* We do all file input/output as binary files. When we need to translate
895 newlines, we do that manually. */
897 #endif /* MSDOS || WINDOWSNT */
900 if (!isatty (fileno (stdin
)))
901 setmode (fileno (stdin
), O_BINARY
);
902 if (!isatty (fileno (stdout
)))
905 setmode (fileno (stdout
), O_BINARY
);
909 /* Skip initial setlocale if LC_ALL is "C", as it's not needed in that case.
910 The build procedure uses this while dumping, to ensure that the
911 dumped Emacs does not have its system locale tables initialized,
912 as that might cause screwups when the dumped Emacs starts up. */
914 char *lc_all
= getenv ("LC_ALL");
915 do_initial_setlocale
= ! lc_all
|| strcmp (lc_all
, "C");
918 /* Set locale now, so that initial error messages are localized properly.
919 fixup_locale must wait until later, since it builds strings. */
920 if (do_initial_setlocale
)
921 setlocale (LC_ALL
, "");
923 inhibit_window_system
= 0;
925 /* Handle the -t switch, which specifies filename to use as terminal. */
929 if (argmatch (argv
, argc
, "-t", "--terminal", 4, &term
, &skip_args
))
934 result
= emacs_open (term
, O_RDWR
, 0);
935 if (result
< 0 || dup (0) < 0)
937 char *errstring
= strerror (errno
);
938 fprintf (stderr
, "%s: %s: %s\n", argv
[0], term
, errstring
);
943 fprintf (stderr
, "%s: %s: not a tty\n", argv
[0], term
);
946 fprintf (stderr
, "Using %s\n", term
);
947 #ifdef HAVE_WINDOW_SYSTEM
948 inhibit_window_system
= 1; /* -t => -nw */
955 /* Command line option --no-windows is deprecated and thus not mentioned
956 in the manual and usage information. */
957 if (argmatch (argv
, argc
, "-nw", "--no-window-system", 6, NULL
, &skip_args
)
958 || argmatch (argv
, argc
, "-nw", "--no-windows", 6, NULL
, &skip_args
))
959 inhibit_window_system
= 1;
961 /* Handle the -batch switch, which means don't do interactive display. */
963 if (argmatch (argv
, argc
, "-batch", "--batch", 5, NULL
, &skip_args
))
966 Vundo_outer_limit
= Qnil
;
968 if (argmatch (argv
, argc
, "-script", "--script", 3, &junk
, &skip_args
))
970 noninteractive
= 1; /* Set batch mode. */
971 /* Convert --script to -scriptload, un-skip it, and sort again
972 so that it will be handled in proper sequence. */
973 /* FIXME broken for --script=FILE - is that supposed to work? */
974 argv
[skip_args
- 1] = (char *) "-scriptload";
976 sort_args (argc
, argv
);
979 /* Handle the --help option, which gives a usage message. */
980 if (argmatch (argv
, argc
, "-help", "--help", 3, NULL
, &skip_args
))
982 printf (USAGE1
, argv
[0], USAGE2
);
988 if (argmatch (argv
, argc
, "-daemon", "--daemon", 5, NULL
, &skip_args
)
989 || argmatch (argv
, argc
, "-daemon", "--daemon", 5, &dname_arg
, &skip_args
))
994 /* Start as a daemon: fork a new child process which will run the
995 rest of the initialization code, then exit.
997 Detaching a daemon requires the following steps:
1001 - close the tty file-descriptors
1003 We only want to do the last 2 steps once the daemon is ready to
1004 serve requests, i.e. after loading .emacs (initialization).
1005 OTOH initialization may start subprocesses (e.g. ispell) and these
1006 should be run from the proper process (the one that will end up
1007 running as daemon) and with the proper "session id" in order for
1008 them to keep working after detaching, so fork and setsid need to be
1009 performed before initialization.
1011 We want to avoid exiting before the server socket is ready, so
1012 use a pipe for synchronization. The parent waits for the child
1013 to close its end of the pipe (using `daemon-initialized')
1015 if (pipe (daemon_pipe
) == -1)
1017 fprintf (stderr
, "Cannot pipe!\n");
1021 #ifndef NS_IMPL_COCOA
1023 fprintf (stderr
, "\nWarning: due to a long standing Gtk+ bug\nhttp://bugzilla.gnome.org/show_bug.cgi?id=85715\n\
1024 Emacs might crash when run in daemon mode and the X11 connection is unexpectedly lost.\n\
1025 Using an Emacs configured with --with-x-toolkit=lucid does not have this problem.\n");
1028 #else /* NS_IMPL_COCOA */
1029 /* Under Cocoa we must do fork+exec as CoreFoundation lib fails in
1030 forked process: http://developer.apple.com/ReleaseNotes/
1031 CoreFoundation/CoreFoundation.html)
1032 We mark being in the exec'd process by a daemon name argument of
1033 form "--daemon=\nFD0,FD1\nNAME" where FD are the pipe file descriptors,
1034 NAME is the original daemon name, if any. */
1035 if (!dname_arg
|| !strchr (dname_arg
, '\n'))
1036 f
= fork (); /* in orig */
1038 f
= 0; /* in exec'd */
1039 #endif /* NS_IMPL_COCOA */
1045 /* Close unused writing end of the pipe. */
1046 close (daemon_pipe
[1]);
1048 /* Just wait for the child to close its end of the pipe. */
1051 retval
= read (daemon_pipe
[0], &buf
, 1);
1053 while (retval
== -1 && errno
== EINTR
);
1057 fprintf (stderr
, "Error reading status from child\n");
1060 else if (retval
== 0)
1062 fprintf (stderr
, "Error: server did not start correctly\n");
1066 close (daemon_pipe
[0]);
1071 fprintf (stderr
, "Cannot fork!\n");
1075 #ifdef NS_IMPL_COCOA
1077 /* In orig process, forked as child, OR in exec'd. */
1078 if (!dname_arg
|| !strchr (dname_arg
, '\n'))
1079 { /* In orig, child: now exec w/special daemon name. */
1082 snprintf (fdStr
, sizeof fdStr
,
1083 "--daemon=\n%d,%d\n%s", daemon_pipe
[0],
1084 daemon_pipe
[1], dname_arg
? dname_arg
: "");
1086 if (! (0 <= fdStrlen
&& fdStrlen
< sizeof fdStr
))
1088 fprintf (stderr
, "daemon: child name too long\n");
1092 argv
[skip_args
] = fdStr
;
1094 execv (argv
[0], argv
);
1095 fprintf (stderr
, "emacs daemon: exec failed: %d\n", errno
);
1099 /* In exec'd: parse special dname into pipe and name info. */
1100 if (!dname_arg
|| !strchr (dname_arg
, '\n')
1101 || strlen (dname_arg
) < 1 || strlen (dname_arg
) > 70)
1103 fprintf (stderr
, "emacs daemon: daemon name absent or too long\n");
1106 dname_arg2
[0] = '\0';
1107 sscanf (dname_arg
, "\n%d,%d\n%s", &(daemon_pipe
[0]), &(daemon_pipe
[1]),
1109 dname_arg
= *dname_arg2
? dname_arg2
: NULL
;
1111 #endif /* NS_IMPL_COCOA */
1114 daemon_name
= xstrdup (dname_arg
);
1115 /* Close unused reading end of the pipe. */
1116 close (daemon_pipe
[0]);
1117 /* Make sure that the used end of the pipe is closed on exec, so
1118 that it is not accessible to programs started from .emacs. */
1119 fcntl (daemon_pipe
[1], F_SETFD
, FD_CLOEXEC
);
1125 fprintf (stderr
, "This platform does not support the -daemon flag.\n");
1130 if (! noninteractive
)
1132 #if defined (USG5) && defined (INTERRUPT_INPUT)
1135 #if defined (HAVE_PTHREAD) && !defined (SYSTEM_MALLOC) && !defined (DOUG_LEA_MALLOC)
1137 extern void malloc_enable_thread (void);
1139 malloc_enable_thread ();
1146 /* Don't catch SIGHUP if dumping. */
1153 sigblock (sigmask (SIGHUP
));
1154 /* In --batch mode, don't catch SIGHUP if already ignored.
1155 That makes nohup work. */
1156 if (! noninteractive
1157 || signal (SIGHUP
, SIG_IGN
) != SIG_IGN
)
1158 signal (SIGHUP
, fatal_error_signal
);
1159 sigunblock (sigmask (SIGHUP
));
1164 ! noninteractive
|| initialized
1170 /* Don't catch these signals in batch mode if dumping.
1171 On some machines, this sets static data that would make
1172 signal fail to work right when the dumped Emacs is run. */
1173 signal (SIGQUIT
, fatal_error_signal
);
1174 signal (SIGILL
, fatal_error_signal
);
1175 signal (SIGTRAP
, fatal_error_signal
);
1177 add_user_signal (SIGUSR1
, "sigusr1");
1180 add_user_signal (SIGUSR2
, "sigusr2");
1183 signal (SIGABRT
, fatal_error_signal
);
1186 signal (SIGHWE
, fatal_error_signal
);
1189 signal (SIGPRE
, fatal_error_signal
);
1192 signal (SIGORE
, fatal_error_signal
);
1195 signal (SIGUME
, fatal_error_signal
);
1198 signal (SIGDLK
, fatal_error_signal
);
1201 signal (SIGCPULIM
, fatal_error_signal
);
1204 /* This is missing on some systems - OS/2, for example. */
1205 signal (SIGIOT
, fatal_error_signal
);
1208 signal (SIGEMT
, fatal_error_signal
);
1210 signal (SIGFPE
, fatal_error_signal
);
1212 signal (SIGBUS
, fatal_error_signal
);
1214 signal (SIGSEGV
, fatal_error_signal
);
1216 signal (SIGSYS
, fatal_error_signal
);
1218 /* May need special treatment on MS-Windows. See
1219 http://lists.gnu.org/archive/html/emacs-devel/2010-09/msg01062.html
1220 Please update the doc of kill-emacs, kill-emacs-hook, and
1221 NEWS if you change this.
1223 if (noninteractive
) signal (SIGINT
, fatal_error_signal
);
1224 signal (SIGTERM
, fatal_error_signal
);
1226 signal (SIGXCPU
, fatal_error_signal
);
1229 signal (SIGXFSZ
, fatal_error_signal
);
1230 #endif /* SIGXFSZ */
1233 /* This just means available memory is getting low. */
1234 signal (SIGDANGER
, memory_warning_signal
);
1238 /* 20 is SIGCHLD, 21 is SIGTTIN, 22 is SIGTTOU. */
1239 signal (SIGXCPU
, fatal_error_signal
);
1240 signal (SIGIOINT
, fatal_error_signal
);
1241 signal (SIGGRANT
, fatal_error_signal
);
1242 signal (SIGRETRACT
, fatal_error_signal
);
1243 signal (SIGSOUND
, fatal_error_signal
);
1244 signal (SIGMSG
, fatal_error_signal
);
1248 noninteractive1
= noninteractive
;
1250 /* Perform basic initializations (not merely interning symbols). */
1257 init_character_once ();
1258 init_charset_once ();
1259 init_coding_once ();
1260 init_syntax_once (); /* Create standard syntax table. */
1261 init_category_once (); /* Create standard category table. */
1262 /* Must be done before init_buffer. */
1263 init_casetab_once ();
1264 init_buffer_once (); /* Create buffer table and some buffers. */
1265 init_minibuf_once (); /* Create list of minibuffers. */
1266 /* Must precede init_window_once. */
1268 /* Call syms_of_xfaces before init_window_once because that
1269 function creates Vterminal_frame. Termcap frames now use
1270 faces, and the face implementation uses some symbols as
1273 /* XXX syms_of_keyboard uses some symbols in keymap.c. It would
1274 be better to arrange things not to have this dependency. */
1276 /* Call syms_of_keyboard before init_window_once because
1277 keyboard sets up symbols that include some face names that
1278 the X support will want to use. This can happen when
1279 CANNOT_DUMP is defined. */
1280 syms_of_keyboard ();
1282 /* Called before syms_of_fileio, because it sets up Qerror_condition. */
1285 /* Before syms_of_coding to initialize Vgc_cons_threshold. */
1287 /* Before syms_of_coding because it initializes Qcharsetp. */
1289 /* Before init_window_once, because it sets up the
1290 Vcoding_system_hash_table. */
1291 syms_of_coding (); /* This should be after syms_of_fileio. */
1293 init_window_once (); /* Init the window system. */
1294 #ifdef HAVE_WINDOW_SYSTEM
1295 init_fringe_once (); /* Swap bitmaps if necessary. */
1296 #endif /* HAVE_WINDOW_SYSTEM */
1301 if (do_initial_setlocale
)
1304 Vsystem_messages_locale
= Vprevious_system_messages_locale
;
1305 Vsystem_time_locale
= Vprevious_system_time_locale
;
1310 #ifdef CLASH_DETECTION
1314 running_asynch_code
= 0;
1317 = argmatch (argv
, argc
, "-nl", "--no-loadup", 6, NULL
, &skip_args
);
1320 = argmatch (argv
, argc
, "-nsl", "--no-site-lisp", 11, NULL
, &skip_args
);
1323 ns_pool
= ns_alloc_autorelease_pool ();
1324 if (!noninteractive
)
1326 #ifdef NS_IMPL_COCOA
1327 if (skip_args
< argc
)
1329 /* FIXME: Do the right thing if getenv returns NULL, or if
1331 if (!strncmp (argv
[skip_args
], "-psn", 4))
1334 chdir (getenv ("HOME"));
1336 else if (skip_args
+1 < argc
&& !strncmp (argv
[skip_args
+1], "-psn", 4))
1339 chdir (getenv ("HOME"));
1344 #endif /* HAVE_NS */
1346 #ifdef HAVE_X_WINDOWS
1347 /* Stupid kludge to catch command-line display spec. We can't
1348 handle this argument entirely in window system dependent code
1349 because we don't even know which window system dependent code
1350 to run until we've recognized this argument. */
1352 char *displayname
= 0;
1353 int count_before
= skip_args
;
1355 /* Skip any number of -d options, but only use the last one. */
1358 int count_before_this
= skip_args
;
1360 if (argmatch (argv
, argc
, "-d", "--display", 3, &displayname
, &skip_args
))
1362 else if (argmatch (argv
, argc
, "-display", 0, 3, &displayname
, &skip_args
))
1367 count_before
= count_before_this
;
1370 /* If we have the form --display=NAME,
1371 convert it into -d name.
1372 This requires inserting a new element into argv. */
1373 if (displayname
&& count_before
< skip_args
)
1375 if (skip_args
== count_before
+ 1)
1377 memmove (argv
+ count_before
+ 3, argv
+ count_before
+ 2,
1378 (argc
- (count_before
+ 2)) * sizeof *argv
);
1379 argv
[count_before
+ 2] = displayname
;
1382 argv
[count_before
+ 1] = (char *) "-d";
1387 if (argmatch (argv
, argc
, "-Q", "--quick", 3, NULL
, &skip_args
)
1388 || argmatch (argv
, argc
, "-quick", 0, 2, NULL
, &skip_args
))
1392 /* Don't actually discard this arg. */
1393 skip_args
= count_before
;
1395 #else /* !HAVE_X_WINDOWS */
1398 int count_before
= skip_args
;
1400 if (argmatch (argv
, argc
, "-Q", "--quick", 3, NULL
, &skip_args
)
1401 || argmatch (argv
, argc
, "-quick", 0, 2, NULL
, &skip_args
))
1404 skip_args
= count_before
;
1408 /* argmatch must not be used after here,
1409 except when building temacs
1410 because the -d argument has not been skipped in skip_args. */
1413 /* Call early 'cause init_environment needs it. */
1415 /* Set defaults for several environment variables. */
1417 init_environment (argc
, argv
, skip_args
);
1424 /* Initialize environment from registry settings. */
1425 init_environment (argv
);
1426 init_ntproc (); /* must precede init_editfns. */
1429 /* Initialize and GC-protect Vinitial_environment and
1430 Vprocess_environment before set_initial_environment fills them
1433 syms_of_callproc ();
1434 /* egetenv is a pretty low-level facility, which may get called in
1435 many circumstances; it seems flimsy to put off initializing it
1436 until calling init_callproc. Do not do it when dumping. */
1437 if (initialized
|| ((strcmp (argv
[argc
-1], "dump") != 0
1438 && strcmp (argv
[argc
-1], "bootstrap") != 0)))
1439 set_initial_environment ();
1441 /* AIX crashes are reported in system versions 3.2.3 and 3.2.4
1442 if this is not done. Do it after set_global_environment so that we
1443 don't pollute Vglobal_environment. */
1444 /* Setting LANG here will defeat the startup locale processing... */
1449 init_buffer (); /* Init default directory of main buffer. */
1451 init_callproc_1 (); /* Must precede init_cmdargs and init_sys_modes. */
1452 init_cmdargs (argc
, argv
, skip_args
); /* Must precede init_lread. */
1456 /* Erase any pre-dump messages in the message log, to avoid confusion. */
1457 Lisp_Object old_log_max
;
1458 old_log_max
= Vmessage_log_max
;
1459 XSETFASTINT (Vmessage_log_max
, 0);
1460 message_dolog ("", 0, 1, 0);
1461 Vmessage_log_max
= old_log_max
;
1464 init_callproc (); /* Must follow init_cmdargs but not init_sys_modes. */
1467 /* Intern the names of all standard functions and variables;
1468 define standard keys. */
1472 /* The basic levels of Lisp must come first. Note that
1473 syms_of_data and some others have already been called. */
1479 syms_of_floatfns ();
1482 syms_of_bytecode ();
1484 syms_of_casefiddle ();
1486 syms_of_category ();
1488 syms_of_character ();
1495 syms_of_filelock ();
1498 /* syms_of_keymap (); */
1506 syms_of_terminal ();
1512 syms_of_textprop ();
1513 syms_of_composite ();
1516 #endif /* WINDOWSNT */
1520 #ifdef HAVE_WINDOW_SYSTEM
1523 #endif /* HAVE_WINDOW_SYSTEM */
1524 #ifdef HAVE_X_WINDOWS
1529 syms_of_xsettings ();
1536 #endif /* HAVE_X_WINDOWS */
1547 syms_of_w32select ();
1550 #endif /* HAVE_NTGUI */
1556 syms_of_win16select ();
1563 syms_of_nsselect ();
1565 #endif /* HAVE_NS */
1572 syms_of_dbusbind ();
1573 #endif /* HAVE_DBUS */
1577 #endif /* WINDOWSNT */
1579 keys_of_casefiddle ();
1582 keys_of_keyboard ();
1588 /* Initialization that must be done even if the global variable
1589 initialized is non zero. */
1591 globals_of_w32font ();
1592 globals_of_w32fns ();
1593 globals_of_w32menu ();
1594 globals_of_w32select ();
1595 #endif /* HAVE_NTGUI */
1600 init_editfns (); /* init_process uses Voperating_system_release. */
1601 init_process (); /* init_display uses add_keyboard_wait_descriptor. */
1602 init_keyboard (); /* This too must precede init_sys_modes. */
1603 if (!noninteractive
)
1604 init_display (); /* Determine terminal type. Calls init_sys_modes. */
1607 #ifdef HAVE_WINDOW_SYSTEM
1610 #endif /* HAVE_WINDOW_SYSTEM */
1622 /* Handle -l loadup, args passed by Makefile. */
1623 if (argmatch (argv
, argc
, "-l", "--load", 3, &file
, &skip_args
))
1624 Vtop_level
= Fcons (intern_c_string ("load"),
1625 Fcons (build_string (file
), Qnil
));
1626 /* Unless next switch is -nl, load "loadup.el" first thing. */
1628 Vtop_level
= Fcons (intern_c_string ("load"),
1629 Fcons (build_string ("loadup.el"), Qnil
));
1636 /* If the execution TZ happens to be the same as the dump TZ,
1637 change it to some other value and then change it back,
1638 to force the underlying implementation to reload the TZ info.
1639 This is needed on implementations that load TZ info from files,
1640 since the TZ file contents may differ between dump and execution. */
1641 char *tz
= getenv ("TZ");
1642 if (tz
&& !strcmp (tz
, dump_tz
))
1652 /* Set up for profiling. This is known to work on FreeBSD,
1653 GNU/Linux and MinGW. It might work on some other systems too.
1654 Give it a try and tell us if it works on your system. To compile
1655 for profiling, use the configure option --enable-profiling. */
1656 #if defined (__FreeBSD__) || defined (GNU_LINUX) || defined (__MINGW32__)
1661 extern unsigned char etext
asm ("etext");
1667 monstartup ((uintptr_t) __executable_start
, (uintptr_t) &etext
);
1676 #ifdef LOCALTIME_CACHE
1677 /* Some versions of localtime have a bug. They cache the value of the time
1678 zone rather than looking it up every time. Since localtime() is
1679 called to bolt the undumping time into the undumped emacs, this
1680 results in localtime ignoring the TZ environment variable.
1681 This flushes the new TZ value into localtime. */
1683 #endif /* defined (LOCALTIME_CACHE) */
1685 /* Enter editor command loop. This never returns. */
1691 /* Sort the args so we can find the most important ones
1692 at the beginning of argv. */
1694 /* First, here's a table of all the standard options. */
1696 struct standard_args
1699 const char *longname
;
1704 static const struct standard_args standard_args
[] =
1706 { "-version", "--version", 150, 0 },
1707 { "-chdir", "--chdir", 130, 1 },
1708 { "-t", "--terminal", 120, 1 },
1709 { "-nw", "--no-window-system", 110, 0 },
1710 { "-nw", "--no-windows", 110, 0 },
1711 { "-batch", "--batch", 100, 0 },
1712 { "-script", "--script", 100, 1 },
1713 { "-daemon", "--daemon", 99, 0 },
1714 { "-help", "--help", 90, 0 },
1715 { "-nl", "--no-loadup", 70, 0 },
1716 { "-nsl", "--no-site-lisp", 65, 0 },
1717 /* -d must come last before the options handled in startup.el. */
1718 { "-d", "--display", 60, 1 },
1719 { "-display", 0, 60, 1 },
1720 /* Now for the options handled in `command-line' (startup.el). */
1721 /* (Note that to imply -nsl, -Q is partially handled here.) */
1722 { "-Q", "--quick", 55, 0 },
1723 { "-quick", 0, 55, 0 },
1724 { "-q", "--no-init-file", 50, 0 },
1725 { "-no-init-file", 0, 50, 0 },
1726 { "-no-site-file", "--no-site-file", 40, 0 },
1727 { "-u", "--user", 30, 1 },
1728 { "-user", 0, 30, 1 },
1729 { "-debug-init", "--debug-init", 20, 0 },
1730 { "-iconic", "--iconic", 15, 0 },
1731 { "-D", "--basic-display", 12, 0},
1732 { "-basic-display", 0, 12, 0},
1733 { "-nbc", "--no-blinking-cursor", 12, 0 },
1734 /* Now for the options handled in `command-line-1' (startup.el). */
1735 { "-nbi", "--no-bitmap-icon", 10, 0 },
1736 { "-bg", "--background-color", 10, 1 },
1737 { "-background", 0, 10, 1 },
1738 { "-fg", "--foreground-color", 10, 1 },
1739 { "-foreground", 0, 10, 1 },
1740 { "-bd", "--border-color", 10, 1 },
1741 { "-bw", "--border-width", 10, 1 },
1742 { "-ib", "--internal-border", 10, 1 },
1743 { "-ms", "--mouse-color", 10, 1 },
1744 { "-cr", "--cursor-color", 10, 1 },
1745 { "-fn", "--font", 10, 1 },
1746 { "-font", 0, 10, 1 },
1747 { "-fs", "--fullscreen", 10, 0 },
1748 { "-fw", "--fullwidth", 10, 0 },
1749 { "-fh", "--fullheight", 10, 0 },
1750 { "-mm", "--maximized", 10, 0 },
1751 { "-g", "--geometry", 10, 1 },
1752 { "-geometry", 0, 10, 1 },
1753 { "-T", "--title", 10, 1 },
1754 { "-title", 0, 10, 1 },
1755 { "-name", "--name", 10, 1 },
1756 { "-xrm", "--xrm", 10, 1 },
1757 { "-parent-id", "--parent-id", 10, 1 },
1758 { "-r", "--reverse-video", 5, 0 },
1760 { "-reverse", 0, 5, 0 },
1761 { "-hb", "--horizontal-scroll-bars", 5, 0 },
1762 { "-vb", "--vertical-scroll-bars", 5, 0 },
1763 { "-color", "--color", 5, 0},
1764 { "-no-splash", "--no-splash", 3, 0 },
1765 { "-no-desktop", "--no-desktop", 3, 0 },
1767 { "-NSAutoLaunch", 0, 5, 1 },
1768 { "-NXAutoLaunch", 0, 5, 1 },
1769 { "-disable-font-backend", "--disable-font-backend", 65, 0 },
1770 { "-_NSMachLaunch", 0, 85, 1 },
1771 { "-MachLaunch", 0, 85, 1 },
1772 { "-macosx", 0, 85, 0 },
1773 { "-NSHost", 0, 85, 1 },
1775 /* These have the same priority as ordinary file name args,
1776 so they are not reordered with respect to those. */
1777 { "-L", "--directory", 0, 1 },
1778 { "-directory", 0, 0, 1 },
1779 { "-l", "--load", 0, 1 },
1780 { "-load", 0, 0, 1 },
1781 /* This has no longname, because using --scriptload confuses sort_args,
1782 because then the --script long option seems to match twice; ie
1783 you can't have a long option which is a prefix of another long
1784 option. In any case, this is entirely an internal option. */
1785 { "-scriptload", NULL
, 0, 1 },
1786 { "-f", "--funcall", 0, 1 },
1787 { "-funcall", 0, 0, 1 },
1788 { "-eval", "--eval", 0, 1 },
1789 { "-execute", "--execute", 0, 1 },
1790 { "-find-file", "--find-file", 0, 1 },
1791 { "-visit", "--visit", 0, 1 },
1792 { "-file", "--file", 0, 1 },
1793 { "-insert", "--insert", 0, 1 },
1795 { "-NXOpen", 0, 0, 1 },
1796 { "-NXOpenTemp", 0, 0, 1 },
1797 { "-NSOpen", 0, 0, 1 },
1798 { "-NSOpenTemp", 0, 0, 1 },
1799 { "-GSFilePath", 0, 0, 1 },
1801 /* This should be processed after ordinary file name args and the like. */
1802 { "-kill", "--kill", -10, 0 },
1805 /* Reorder the elements of ARGV (assumed to have ARGC elements)
1806 so that the highest priority ones come first.
1807 Do not change the order of elements of equal priority.
1808 If an option takes an argument, keep it and its argument together.
1810 If an option that takes no argument appears more
1811 than once, eliminate all but one copy of it. */
1814 sort_args (int argc
, char **argv
)
1816 char **new = xmalloc (argc
* sizeof *new);
1817 /* For each element of argv,
1818 the corresponding element of options is:
1819 0 for an option that takes no arguments,
1820 1 for an option that takes one argument, etc.
1821 -1 for an ordinary non-option argument. */
1822 int *options
= xnmalloc (argc
, sizeof *options
);
1823 int *priority
= xnmalloc (argc
, sizeof *priority
);
1825 int incoming_used
= 1;
1829 /* Categorize all the options,
1830 and figure out which argv elts are option arguments. */
1831 for (from
= 1; from
< argc
; from
++)
1835 if (argv
[from
][0] == '-')
1839 /* If we have found "--", don't consider
1840 any more arguments as options. */
1841 if (argv
[from
][1] == '-' && argv
[from
][2] == 0)
1843 /* Leave the "--", and everything following it, at the end. */
1844 for (; from
< argc
; from
++)
1846 priority
[from
] = -100;
1852 /* Look for a match with a known old-fashioned option. */
1853 for (i
= 0; i
< sizeof (standard_args
) / sizeof (standard_args
[0]); i
++)
1854 if (!strcmp (argv
[from
], standard_args
[i
].name
))
1856 options
[from
] = standard_args
[i
].nargs
;
1857 priority
[from
] = standard_args
[i
].priority
;
1858 if (from
+ standard_args
[i
].nargs
>= argc
)
1859 fatal ("Option `%s' requires an argument\n", argv
[from
]);
1860 from
+= standard_args
[i
].nargs
;
1864 /* Look for a match with a known long option.
1865 MATCH is -1 if no match so far, -2 if two or more matches so far,
1866 >= 0 (the table index of the match) if just one match so far. */
1867 if (argv
[from
][1] == '-')
1869 char const *equals
= strchr (argv
[from
], '=');
1871 equals
? equals
- argv
[from
] : strlen (argv
[from
]);
1876 i
< sizeof (standard_args
) / sizeof (standard_args
[0]); i
++)
1877 if (standard_args
[i
].longname
1878 && !strncmp (argv
[from
], standard_args
[i
].longname
,
1887 /* If we found exactly one match, use that. */
1890 options
[from
] = standard_args
[match
].nargs
;
1891 priority
[from
] = standard_args
[match
].priority
;
1892 /* If --OPTION=VALUE syntax is used,
1893 this option uses just one argv element. */
1896 if (from
+ options
[from
] >= argc
)
1897 fatal ("Option `%s' requires an argument\n", argv
[from
]);
1898 from
+= options
[from
];
1900 /* FIXME When match < 0, shouldn't there be some error,
1901 or at least indication to the user that there was a
1908 /* Copy the arguments, in order of decreasing priority, to NEW. */
1910 while (incoming_used
< argc
)
1913 int best_priority
= -9999;
1915 /* Find the highest priority remaining option.
1916 If several have equal priority, take the first of them. */
1917 for (from
= 1; from
< argc
; from
++)
1919 if (argv
[from
] != 0 && priority
[from
] > best_priority
)
1921 best_priority
= priority
[from
];
1924 /* Skip option arguments--they are tied to the options. */
1925 if (options
[from
] > 0)
1926 from
+= options
[from
];
1932 /* Copy the highest priority remaining option, with its args, to NEW.
1933 Unless it is a duplicate of the previous one. */
1934 if (! (options
[best
] == 0
1935 && ! strcmp (new[to
- 1], argv
[best
])))
1937 new[to
++] = argv
[best
];
1938 for (i
= 0; i
< options
[best
]; i
++)
1939 new[to
++] = argv
[best
+ i
+ 1];
1942 incoming_used
+= 1 + (options
[best
] > 0 ? options
[best
] : 0);
1944 /* Clear out this option in ARGV. */
1946 for (i
= 0; i
< options
[best
]; i
++)
1947 argv
[best
+ i
+ 1] = 0;
1950 /* If duplicate options were deleted, fill up extra space with null ptrs. */
1954 memcpy (argv
, new, sizeof (char *) * argc
);
1961 DEFUN ("kill-emacs", Fkill_emacs
, Skill_emacs
, 0, 1, "P",
1962 doc
: /* Exit the Emacs job and kill it.
1963 If ARG is an integer, return ARG as the exit program code.
1964 If ARG is a string, stuff it as keyboard input.
1966 This function is called upon receipt of the signals SIGTERM
1967 or SIGHUP, and upon SIGINT in batch mode.
1969 The value of `kill-emacs-hook', if not void,
1970 is a list of functions (of no args),
1971 all of which are called before Emacs is actually killed. */)
1974 struct gcpro gcpro1
;
1983 hook
= intern ("kill-emacs-hook");
1984 Frun_hooks (1, &hook
);
1988 #ifdef HAVE_X_WINDOWS
1989 /* Transfer any clipboards we own to the clipboard manager. */
1990 x_clipboard_manager_save_all ();
1993 shut_down_emacs (0, 0, STRINGP (arg
) ? arg
: Qnil
);
1996 ns_release_autorelease_pool (ns_pool
);
1999 /* If we have an auto-save list file,
2000 kill it because we are exiting Emacs deliberately (not crashing).
2001 Do it after shut_down_emacs, which does an auto-save. */
2002 if (STRINGP (Vauto_save_list_file_name
))
2003 unlink (SSDATA (Vauto_save_list_file_name
));
2006 exit_code
= (XINT (arg
) < 0
2007 ? XINT (arg
) | INT_MIN
2008 : XINT (arg
) & INT_MAX
);
2009 else if (noninteractive
&& (fflush (stdout
) || ferror (stdout
)))
2010 exit_code
= EXIT_FAILURE
;
2012 exit_code
= EXIT_SUCCESS
;
2017 /* Perform an orderly shutdown of Emacs. Autosave any modified
2018 buffers, kill any child processes, clean up the terminal modes (if
2019 we're in the foreground), and other stuff like that. Don't perform
2020 any redisplay; this may be called when Emacs is shutting down in
2021 the background, or after its X connection has died.
2023 If SIG is a signal number, print a message for it.
2025 This is called by fatal signal handlers, X protocol error handlers,
2029 shut_down_emacs (int sig
, int no_x
, Lisp_Object stuff
)
2031 /* Prevent running of hooks from now on. */
2034 /* Don't update display from now on. */
2035 Vinhibit_redisplay
= Qt
;
2037 /* If we are controlling the terminal, reset terminal modes. */
2040 int pgrp
= EMACS_GETPGRP (0);
2041 int tpgrp
= tcgetpgrp (0);
2042 if ((tpgrp
!= -1) && tpgrp
== pgrp
)
2044 reset_all_sys_modes ();
2045 if (sig
&& sig
!= SIGTERM
)
2046 fprintf (stderr
, "Fatal error (%d)", sig
);
2051 reset_all_sys_modes ();
2054 stuff_buffered_input (stuff
);
2056 inhibit_sentinels
= 1;
2057 kill_buffer_processes (Qnil
);
2058 Fdo_auto_save (Qt
, Qnil
);
2060 #ifdef CLASH_DETECTION
2061 unlock_all_files ();
2064 #if 0 /* This triggers a bug in XCloseDisplay and is not needed. */
2065 #ifdef HAVE_X_WINDOWS
2066 /* It's not safe to call intern here. Maybe we are crashing. */
2067 if (!noninteractive
&& SYMBOLP (Vinitial_window_system
)
2068 && SCHARS (SYMBOL_NAME (Vinitial_window_system
)) == 1
2069 && SREF (SYMBOL_NAME (Vinitial_window_system
), 0) == 'x'
2071 Fx_close_current_connection ();
2072 #endif /* HAVE_X_WINDOWS */
2076 /* There is a tendency for a SIGIO signal to arrive within exit,
2077 and cause a SIGHUP because the input descriptor is already closed. */
2079 signal (SIGIO
, SIG_IGN
);
2086 /* Do this only if terminating normally, we want glyph matrices
2087 etc. in a core dump. */
2088 if (sig
== 0 || sig
== SIGTERM
)
2090 check_glyph_memory ();
2091 check_message_stack ();
2099 ns_term_shutdown (sig
);
2103 xml_cleanup_parser ();
2113 DEFUN ("dump-emacs", Fdump_emacs
, Sdump_emacs
, 2, 2, 0,
2114 doc
: /* Dump current state of Emacs into executable file FILENAME.
2115 Take symbols from SYMFILE (presumably the file you executed to run Emacs).
2116 This is used in the file `loadup.el' when building Emacs.
2118 You must run Emacs in batch mode in order to dump it. */)
2119 (Lisp_Object filename
, Lisp_Object symfile
)
2123 ptrdiff_t count
= SPECPDL_INDEX ();
2127 if (! noninteractive
)
2128 error ("Dumping Emacs works only in batch mode");
2132 /* Warn if the gap between BSS end and heap start is larger than this. */
2133 # define MAX_HEAP_BSS_DIFF (1024*1024)
2135 if (heap_bss_diff
> MAX_HEAP_BSS_DIFF
)
2137 fprintf (stderr
, "**************************************************\n");
2138 fprintf (stderr
, "Warning: Your system has a gap between BSS and the\n");
2139 fprintf (stderr
, "heap (%"pMu
" bytes). This usually means that exec-shield\n",
2141 fprintf (stderr
, "or something similar is in effect. The dump may\n");
2142 fprintf (stderr
, "fail because of this. See the section about\n");
2143 fprintf (stderr
, "exec-shield in etc/PROBLEMS for more information.\n");
2144 fprintf (stderr
, "**************************************************\n");
2146 #endif /* GNU_LINUX */
2148 /* Bind `command-line-processed' to nil before dumping,
2149 so that the dumped Emacs will process its command line
2150 and set up to work with X windows if appropriate. */
2151 symbol
= intern ("command-line-processed");
2152 specbind (symbol
, Qnil
);
2154 CHECK_STRING (filename
);
2155 filename
= Fexpand_file_name (filename
, Qnil
);
2156 if (!NILP (symfile
))
2158 CHECK_STRING (symfile
);
2159 if (SCHARS (symfile
))
2160 symfile
= Fexpand_file_name (symfile
, Qnil
);
2164 Vpurify_flag
= Qnil
;
2167 set_time_zone_rule (dump_tz
);
2168 #ifndef LOCALTIME_CACHE
2169 /* Force a tz reload, since set_time_zone_rule doesn't. */
2175 /* Tell malloc where start of impure now is. */
2176 /* Also arrange for warnings when nearly out of space. */
2177 #ifndef SYSTEM_MALLOC
2179 /* On Windows, this was done before dumping, and that once suffices.
2180 Meanwhile, my_edata is not valid on Windows. */
2182 extern char my_edata
[];
2183 memory_warnings (my_edata
, malloc_warning
);
2185 #endif /* not WINDOWSNT */
2186 #if defined (HAVE_PTHREAD) && !defined SYNC_INPUT
2187 /* Pthread may call malloc before main, and then we will get an endless
2188 loop, because pthread_self (see alloc.c) calls malloc the first time
2189 it is called on some systems. */
2190 reset_malloc_hooks ();
2192 #endif /* not SYSTEM_MALLOC */
2193 #ifdef DOUG_LEA_MALLOC
2194 malloc_state_ptr
= malloc_get_state ();
2197 #ifdef USE_MMAP_FOR_BUFFERS
2200 unexec (SSDATA (filename
), !NILP (symfile
) ? SSDATA (symfile
) : 0);
2201 #ifdef USE_MMAP_FOR_BUFFERS
2204 #ifdef DOUG_LEA_MALLOC
2205 free (malloc_state_ptr
);
2210 return unbind_to (count
, Qnil
);
2213 #endif /* not CANNOT_DUMP */
2216 /* Recover from setlocale (LC_ALL, ""). */
2220 /* The Emacs Lisp reader needs LC_NUMERIC to be "C",
2221 so that numbers are read and printed properly for Emacs Lisp. */
2222 setlocale (LC_NUMERIC
, "C");
2225 /* Set system locale CATEGORY, with previous locale *PLOCALE, to
2228 synchronize_locale (int category
, Lisp_Object
*plocale
, Lisp_Object desired_locale
)
2230 if (! EQ (*plocale
, desired_locale
))
2232 *plocale
= desired_locale
;
2233 setlocale (category
, (STRINGP (desired_locale
)
2234 ? SSDATA (desired_locale
)
2239 /* Set system time locale to match Vsystem_time_locale, if possible. */
2241 synchronize_system_time_locale (void)
2243 synchronize_locale (LC_TIME
, &Vprevious_system_time_locale
,
2244 Vsystem_time_locale
);
2247 /* Set system messages locale to match Vsystem_messages_locale, if
2250 synchronize_system_messages_locale (void)
2253 synchronize_locale (LC_MESSAGES
, &Vprevious_system_messages_locale
,
2254 Vsystem_messages_locale
);
2257 #endif /* HAVE_SETLOCALE */
2264 decode_env_path (const char *evarname
, const char *defalt
)
2266 const char *path
, *p
;
2267 Lisp_Object lpath
, element
, tem
;
2269 /* It's okay to use getenv here, because this function is only used
2270 to initialize variables when Emacs starts up, and isn't called
2273 path
= getenv (evarname
);
2279 /* Ensure values from the environment use the proper directory separator. */
2282 char *path_copy
= alloca (strlen (path
) + 1);
2283 strcpy (path_copy
, path
);
2284 dostounix_filename (path_copy
);
2291 p
= strchr (path
, SEPCHAR
);
2293 p
= path
+ strlen (path
);
2294 element
= (p
- path
? make_string (path
, p
- path
)
2295 : build_string ("."));
2297 /* Add /: to the front of the name
2298 if it would otherwise be treated as magic. */
2299 tem
= Ffind_file_name_handler (element
, Qt
);
2301 /* However, if the handler says "I'm safe",
2302 don't bother adding /:. */
2306 prop
= Fget (tem
, intern ("safe-magic"));
2312 element
= concat2 (build_string ("/:"), element
);
2314 lpath
= Fcons (element
, lpath
);
2320 return Fnreverse (lpath
);
2323 DEFUN ("daemonp", Fdaemonp
, Sdaemonp
, 0, 0, 0,
2324 doc
: /* Return non-nil if the current emacs process is a daemon.
2325 If the daemon was given a name argument, return that name. */)
2330 return build_string (daemon_name
);
2337 DEFUN ("daemon-initialized", Fdaemon_initialized
, Sdaemon_initialized
, 0, 0, 0,
2338 doc
: /* Mark the Emacs daemon as being initialized.
2339 This finishes the daemonization process by doing the other half of detaching
2340 from the parent process and its tty file descriptors. */)
2347 error ("This function can only be called if emacs is run as a daemon");
2349 if (daemon_pipe
[1] < 0)
2350 error ("The daemon has already been initialized");
2352 if (NILP (Vafter_init_time
))
2353 error ("This function can only be called after loading the init files");
2355 /* Get rid of stdin, stdout and stderr. */
2356 nfd
= open ("/dev/null", O_RDWR
);
2358 err
|= dup2 (nfd
, 0) < 0;
2359 err
|= dup2 (nfd
, 1) < 0;
2360 err
|= dup2 (nfd
, 2) < 0;
2361 err
|= close (nfd
) != 0;
2363 /* Closing the pipe will notify the parent that it can exit.
2364 FIXME: In case some other process inherited the pipe, closing it here
2365 won't notify the parent because it's still open elsewhere, so we
2366 additionally send a byte, just to make sure the parent really exits.
2367 Instead, we should probably close the pipe in start-process and
2368 call-process to make sure the pipe is never inherited by
2370 err
|= write (daemon_pipe
[1], "\n", 1) < 0;
2371 err
|= close (daemon_pipe
[1]) != 0;
2372 /* Set it to an invalid value so we know we've already run this function. */
2373 daemon_pipe
[1] = -1;
2376 error ("I/O error during daemon initialization");
2381 syms_of_emacs (void)
2383 DEFSYM (Qfile_name_handler_alist
, "file-name-handler-alist");
2384 DEFSYM (Qrisky_local_variable
, "risky-local-variable");
2385 DEFSYM (Qkill_emacs
, "kill-emacs");
2388 defsubr (&Sdump_emacs
);
2391 defsubr (&Skill_emacs
);
2393 defsubr (&Sinvocation_name
);
2394 defsubr (&Sinvocation_directory
);
2395 defsubr (&Sdaemonp
);
2396 defsubr (&Sdaemon_initialized
);
2398 DEFVAR_LISP ("command-line-args", Vcommand_line_args
,
2399 doc
: /* Args passed by shell to Emacs, as a list of strings.
2400 Many arguments are deleted from the list as they are processed. */);
2402 DEFVAR_LISP ("system-type", Vsystem_type
,
2403 doc
: /* The value is a symbol indicating the type of operating system you are using.
2405 `gnu' compiled for a GNU Hurd system.
2406 `gnu/linux' compiled for a GNU/Linux system.
2407 `gnu/kfreebsd' compiled for a GNU system with a FreeBSD kernel.
2408 `darwin' compiled for Darwin (GNU-Darwin, Mac OS X, ...).
2409 `ms-dos' compiled as an MS-DOS application.
2410 `windows-nt' compiled as a native W32 application.
2411 `cygwin' compiled using the Cygwin library.
2412 Anything else (in Emacs 24.1, the possibilities are: aix, berkeley-unix,
2413 hpux, irix, usg-unix-v) indicates some sort of Unix system. */);
2414 Vsystem_type
= intern_c_string (SYSTEM_TYPE
);
2415 /* The above values are from SYSTEM_TYPE in include files under src/s. */
2417 DEFVAR_LISP ("system-configuration", Vsystem_configuration
,
2418 doc
: /* Value is string indicating configuration Emacs was built for.
2419 On MS-Windows, the value reflects the OS flavor and version on which
2420 Emacs is running. */);
2421 Vsystem_configuration
= build_string (EMACS_CONFIGURATION
);
2423 DEFVAR_LISP ("system-configuration-options", Vsystem_configuration_options
,
2424 doc
: /* String containing the configuration options Emacs was built with. */);
2425 Vsystem_configuration_options
= build_string (EMACS_CONFIG_OPTIONS
);
2427 DEFVAR_BOOL ("noninteractive", noninteractive1
,
2428 doc
: /* Non-nil means Emacs is running without interactive terminal. */);
2430 DEFVAR_LISP ("kill-emacs-hook", Vkill_emacs_hook
,
2431 doc
: /* Hook to be run when `kill-emacs' is called.
2432 Since `kill-emacs' may be invoked when the terminal is disconnected (or
2433 in other similar situations), functions placed on this hook should not
2434 expect to be able to interact with the user. To ask for confirmation,
2435 see `kill-emacs-query-functions' instead.
2437 Before Emacs 24.1, the hook was not run in batch mode, i.e., if
2438 `noninteractive' was non-nil. */);
2439 Vkill_emacs_hook
= Qnil
;
2441 DEFVAR_LISP ("path-separator", Vpath_separator
,
2442 doc
: /* String containing the character that separates directories in
2443 search paths, such as PATH and other similar environment variables. */);
2446 Vpath_separator
= make_string (&c
, 1);
2449 DEFVAR_LISP ("invocation-name", Vinvocation_name
,
2450 doc
: /* The program name that was used to run Emacs.
2451 Any directory names are omitted. */);
2453 DEFVAR_LISP ("invocation-directory", Vinvocation_directory
,
2454 doc
: /* The directory in which the Emacs executable was found, to run it.
2455 The value is nil if that directory's name is not known. */);
2457 DEFVAR_LISP ("installation-directory", Vinstallation_directory
,
2458 doc
: /* A directory within which to look for the `lib-src' and `etc' directories.
2459 In an installed Emacs, this is normally nil. It is non-nil if
2460 both `lib-src' (on MS-DOS, `info') and `etc' directories are found
2461 within the variable `invocation-directory' or its parent. For example,
2462 this is the case when running an uninstalled Emacs executable from its
2463 build directory. */);
2464 Vinstallation_directory
= Qnil
;
2466 DEFVAR_LISP ("system-messages-locale", Vsystem_messages_locale
,
2467 doc
: /* System locale for messages. */);
2468 Vsystem_messages_locale
= Qnil
;
2470 DEFVAR_LISP ("previous-system-messages-locale",
2471 Vprevious_system_messages_locale
,
2472 doc
: /* Most recently used system locale for messages. */);
2473 Vprevious_system_messages_locale
= Qnil
;
2475 DEFVAR_LISP ("system-time-locale", Vsystem_time_locale
,
2476 doc
: /* System locale for time. */);
2477 Vsystem_time_locale
= Qnil
;
2479 DEFVAR_LISP ("previous-system-time-locale", Vprevious_system_time_locale
,
2480 doc
: /* Most recently used system locale for time. */);
2481 Vprevious_system_time_locale
= Qnil
;
2483 DEFVAR_LISP ("before-init-time", Vbefore_init_time
,
2484 doc
: /* Value of `current-time' before Emacs begins initialization. */);
2485 Vbefore_init_time
= Qnil
;
2487 DEFVAR_LISP ("after-init-time", Vafter_init_time
,
2488 doc
: /* Value of `current-time' after loading the init files.
2489 This is nil during initialization. */);
2490 Vafter_init_time
= Qnil
;
2492 DEFVAR_BOOL ("inhibit-x-resources", inhibit_x_resources
,
2493 doc
: /* If non-nil, X resources, Windows Registry settings, and NS defaults are not used. */);
2494 inhibit_x_resources
= 0;
2496 DEFVAR_LISP ("emacs-copyright", Vemacs_copyright
,
2497 doc
: /* Short copyright string for this version of Emacs. */);
2498 Vemacs_copyright
= build_string (emacs_copyright
);
2500 DEFVAR_LISP ("emacs-version", Vemacs_version
,
2501 doc
: /* Version numbers of this version of Emacs. */);
2502 Vemacs_version
= build_string (emacs_version
);
2504 DEFVAR_LISP ("dynamic-library-alist", Vdynamic_library_alist
,
2505 doc
: /* Alist of dynamic libraries vs external files implementing them.
2506 Each element is a list (LIBRARY FILE...), where the car is a symbol
2507 representing a supported external library, and the rest are strings giving
2508 alternate filenames for that library.
2510 Emacs tries to load the library from the files in the order they appear on
2511 the list; if none is loaded, the running session of Emacs won't have access
2514 Note that image types `pbm' and `xbm' do not need entries in this variable
2515 because they do not depend on external libraries and are always available.
2517 Also note that this is not a generic facility for accessing external
2518 libraries; only those already known by Emacs will be loaded. */);
2519 Vdynamic_library_alist
= Qnil
;
2520 Fput (intern_c_string ("dynamic-library-alist"), Qrisky_local_variable
, Qt
);
2522 /* Make sure IS_DAEMON starts up as false. */