1 /* Fully extensible Emacs, running on Unix, intended for GNU.
3 Copyright (C) 1985-1987, 1993-1995, 1997-1999, 2001-2011
4 Free Software Foundation, Inc.
6 This file is part of GNU Emacs.
8 GNU Emacs is free software: you can redistribute it and/or modify
9 it under the terms of the GNU General Public License as published by
10 the Free Software Foundation, either version 3 of the License, or
11 (at your option) any later version.
13 GNU Emacs is distributed in the hope that it will be useful,
14 but WITHOUT ANY WARRANTY; without even the implied warranty of
15 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
16 GNU General Public License for more details.
18 You should have received a copy of the GNU General Public License
19 along with GNU Emacs. If not, see <http://www.gnu.org/licenses/>. */
27 #include <sys/types.h>
36 #include <windows.h> /* just for w32.h */
38 #include "w32heap.h" /* for prototype of sbrk */
41 #ifdef NS_IMPL_GNUSTEP
42 /* At least under Debian, GSConfig is in a subdirectory. --Stef */
43 #include <GNUstepBase/GSConfig.h>
47 #include "intervals.h"
52 #include "blockinput.h"
53 #include "syssignal.h"
56 #include "termhooks.h"
78 #include <sys/resource.h>
81 #ifdef HAVE_PERSONALITY_LINUX32
82 #include <sys/personality.h>
86 #include <libxml/parser.h>
96 #define setpgrp setpgid
100 static const char emacs_version
[] = VERSION
;
101 static const char emacs_copyright
[] = "Copyright (C) 2011 Free Software Foundation, Inc.";
103 /* Make these values available in GDB, which doesn't see macros. */
106 int gdb_use_lsb EXTERNALLY_VISIBLE
= 1;
108 int gdb_use_lsb EXTERNALLY_VISIBLE
= 0;
110 #ifndef USE_LISP_UNION_TYPE
111 int gdb_use_union EXTERNALLY_VISIBLE
= 0;
113 int gdb_use_union EXTERNALLY_VISIBLE
= 1;
115 int gdb_valbits EXTERNALLY_VISIBLE
= VALBITS
;
116 int gdb_gctypebits EXTERNALLY_VISIBLE
= GCTYPEBITS
;
117 #if defined (DATA_SEG_BITS) && ! defined (USE_LSB_TAG)
118 uintptr_t gdb_data_seg_bits EXTERNALLY_VISIBLE
= DATA_SEG_BITS
;
120 uintptr_t gdb_data_seg_bits EXTERNALLY_VISIBLE
= 0;
122 ptrdiff_t PVEC_FLAG EXTERNALLY_VISIBLE
= PSEUDOVECTOR_FLAG
;
123 ptrdiff_t gdb_array_mark_flag EXTERNALLY_VISIBLE
= ARRAY_MARK_FLAG
;
124 /* GDB might say "No enum type named pvec_type" if we don't have at
125 least one symbol with that type, and then xbacktrace could fail. */
126 enum pvec_type gdb_pvec_type EXTERNALLY_VISIBLE
= PVEC_TYPE_MASK
;
128 /* Empty lisp strings. To avoid having to build any others. */
129 Lisp_Object empty_unibyte_string
, empty_multibyte_string
;
131 /* Set nonzero after Emacs has started up the first time.
132 Prevents reinitialization of the Lisp world and keymaps
133 on subsequent starts. */
137 extern void unexec_init_emacs_zone (void);
140 #ifdef DOUG_LEA_MALLOC
141 /* Preserves a pointer to the memory allocated that copies that
142 static data inside glibc's malloc. */
143 static void *malloc_state_ptr
;
144 /* From glibc, a routine that returns a copy of the malloc internal state. */
145 extern void *malloc_get_state (void);
146 /* From glibc, a routine that overwrites the malloc internal state. */
147 extern int malloc_set_state (void*);
148 /* Non-zero if the MALLOC_CHECK_ environment variable was set while
149 dumping. Used to work around a bug in glibc's malloc. */
150 static int malloc_using_checking
;
153 Lisp_Object Qfile_name_handler_alist
;
155 Lisp_Object Qrisky_local_variable
;
157 /* If non-zero, Emacs should not attempt to use a window-specific code,
158 but instead should use the virtual terminal under which it was started. */
159 int inhibit_window_system
;
161 /* If non-zero, a filter or a sentinel is running. Tested to save the match
162 data on the first attempt to change it inside asynchronous code. */
163 int running_asynch_code
;
165 #if defined (HAVE_X_WINDOWS) || defined (HAVE_NS)
166 /* If non-zero, -d was specified, meaning we're using some window system. */
170 /* An address near the bottom of the stack.
171 Tells GC how to save a copy of the stack. */
174 #if defined (DOUG_LEA_MALLOC) || defined (GNU_LINUX)
175 /* The address where the heap starts (from the first sbrk (0) call). */
176 static void *my_heap_start
;
180 /* The gap between BSS end and heap start as far as we can tell. */
181 static uprintmax_t heap_bss_diff
;
184 /* Nonzero means running Emacs without interactive terminal. */
187 /* Nonzero means remove site-lisp directories from load-path. */
190 /* Name for the server started by the daemon.*/
191 static char *daemon_name
;
193 /* Pipe used to send exit notification to the daemon parent at
197 /* Save argv and argc. */
201 static void sort_args (int argc
, char **argv
);
202 static void syms_of_emacs (void);
204 /* MSVC needs each string be shorter than 2048 bytes, so the usage
205 strings below are split to not overflow this limit. */
207 Usage: %s [OPTION-OR-FILENAME]...\n\
209 Run Emacs, the extensible, customizable, self-documenting real-time\n\
210 display editor. The recommended way to start Emacs for normal editing\n\
211 is with no options at all.\n\
213 Run M-x info RET m emacs RET m emacs invocation RET inside Emacs to\n\
214 read the main documentation for these command-line arguments.\n\
216 Initialization options:\n\
218 --batch do not do interactive display; implies -q\n\
219 --chdir DIR change to directory DIR\n\
220 --daemon start a server in the background\n\
221 --debug-init enable Emacs Lisp debugger for init file\n\
222 --display, -d DISPLAY use X server DISPLAY\n\
223 --no-desktop do not load a saved desktop\n\
224 --no-init-file, -q load neither ~/.emacs nor default.el\n\
225 --no-shared-memory, -nl do not use shared memory\n\
226 --no-site-file do not load site-start.el\n\
227 --no-site-lisp, -nsl do not add site-lisp directories to load-path\n\
228 --no-splash do not display a splash screen on startup\n\
229 --no-window-system, -nw do not communicate with X, ignoring $DISPLAY\n\
230 --quick, -Q equivalent to:\n\
231 -q --no-site-file --no-site-lisp --no-splash\n\
232 --script FILE run FILE as an Emacs Lisp script\n\
233 --terminal, -t DEVICE use DEVICE for terminal I/O\n\
234 --user, -u USER load ~USER/.emacs instead of your own\n\
240 FILE visit FILE using find-file\n\
241 +LINE go to line LINE in next FILE\n\
242 +LINE:COLUMN go to line LINE, column COLUMN, in next FILE\n\
243 --directory, -L DIR add DIR to variable load-path\n\
244 --eval EXPR evaluate Emacs Lisp expression EXPR\n\
245 --execute EXPR evaluate Emacs Lisp expression EXPR\n\
246 --file FILE visit FILE using find-file\n\
247 --find-file FILE visit FILE using find-file\n\
248 --funcall, -f FUNC call Emacs Lisp function FUNC with no arguments\n\
249 --insert FILE insert contents of FILE into current buffer\n\
250 --kill exit without asking for confirmation\n\
251 --load, -l FILE load Emacs Lisp FILE using the load function\n\
252 --visit FILE visit FILE using find-file\n\
258 --background-color, -bg COLOR window background color\n\
259 --basic-display, -D disable many display features;\n\
260 used for debugging Emacs\n\
261 --border-color, -bd COLOR main border color\n\
262 --border-width, -bw WIDTH width of main border\n\
263 --color, --color=MODE override color mode for character terminals;\n\
264 MODE defaults to `auto', and\n\
265 can also be `never', `always',\n\
266 or a mode name like `ansi8'\n\
267 --cursor-color, -cr COLOR color of the Emacs cursor indicating point\n\
268 --font, -fn FONT default font; must be fixed-width\n\
269 --foreground-color, -fg COLOR window foreground color\n\
270 --fullheight, -fh make the first frame high as the screen\n\
271 --fullscreen, -fs make the first frame fullscreen\n\
272 --fullwidth, -fw make the first frame wide as the screen\n\
273 --maximized, -mm make the first frame maximized\n\
274 --geometry, -g GEOMETRY window geometry\n\
275 --no-bitmap-icon, -nbi do not use picture of gnu for Emacs icon\n\
276 --iconic start Emacs in iconified state\n\
277 --internal-border, -ib WIDTH width between text and main border\n\
278 --line-spacing, -lsp PIXELS additional space to put between lines\n\
279 --mouse-color, -ms COLOR mouse cursor color in Emacs window\n\
280 --name NAME title for initial Emacs frame\n\
281 --no-blinking-cursor, -nbc disable blinking cursor\n\
282 --reverse-video, -r, -rv switch foreground and background\n\
283 --title, -T TITLE title for initial Emacs frame\n\
284 --vertical-scroll-bars, -vb enable vertical scroll bars\n\
285 --xrm XRESOURCES set additional X resources\n\
286 --parent-id XID set parent window\n\
287 --help display this help and exit\n\
288 --version output version information and exit\n\
292 You can generally also specify long option names with a single -; for\n\
293 example, -batch as well as --batch. You can use any unambiguous\n\
294 abbreviation for a --option.\n\
296 Various environment variables and window system resources also affect\n\
297 Emacs' operation. See the main documentation.\n\
299 Report bugs to bug-gnu-emacs@gnu.org. First, please see the Bugs\n\
300 section of the Emacs manual or the file BUGS.\n"
303 /* Signal code for the fatal signal that was received. */
304 static int fatal_error_code
;
306 /* Nonzero if handling a fatal error already. */
307 int fatal_error_in_progress
;
309 /* If non-null, call this function from fatal_error_signal before
310 committing suicide. */
312 static void (*fatal_error_signal_hook
) (void);
314 #ifdef FORWARD_SIGNAL_TO_MAIN_THREAD
315 /* When compiled with GTK and running under Gnome,
316 multiple threads may be created. Keep track of our main
317 thread to make sure signals are delivered to it (see syssignal.h). */
319 pthread_t main_thread
;
323 /* Handle bus errors, invalid instruction, etc. */
324 #ifndef FLOAT_CATCH_SIGILL
328 fatal_error_signal (int sig
)
330 SIGNAL_THREAD_CHECK (sig
);
331 fatal_error_code
= sig
;
332 signal (sig
, SIG_DFL
);
334 TOTALLY_UNBLOCK_INPUT
;
336 /* If fatal error occurs in code below, avoid infinite recursion. */
337 if (! fatal_error_in_progress
)
339 fatal_error_in_progress
= 1;
341 if (sig
== SIGTERM
|| sig
== SIGHUP
|| sig
== SIGINT
)
342 Fkill_emacs (make_number (sig
));
344 shut_down_emacs (sig
, 0, Qnil
);
347 /* Signal the same code; this time it will really be fatal.
348 Remember that since we're in a signal handler, the signal we're
349 going to send is probably blocked, so we have to unblock it if we
350 want to really receive it. */
352 sigunblock (sigmask (fatal_error_code
));
355 if (fatal_error_signal_hook
)
356 fatal_error_signal_hook ();
358 kill (getpid (), fatal_error_code
);
363 /* Handler for SIGDANGER. */
365 memory_warning_signal (int sig
)
367 signal (sig
, memory_warning_signal
);
368 SIGNAL_THREAD_CHECK (sig
);
370 malloc_warning ("Operating system warns that virtual memory is running low.\n");
372 /* It might be unsafe to call do_auto_save now. */
373 force_auto_save_soon ();
377 /* We define abort, rather than using it from the library,
378 so that GDB can return from a breakpoint here.
379 MSDOS has its own definition in msdos.c. */
381 #if ! defined (DOS_NT) && ! defined (NO_ABORT)
386 kill (getpid (), SIGABRT
);
387 /* This shouldn't be executed, but it prevents a warning. */
393 /* Code for dealing with Lisp access to the Unix command line. */
396 init_cmdargs (int argc
, char **argv
, int skip_args
)
399 Lisp_Object name
, dir
, handler
;
400 ptrdiff_t count
= SPECPDL_INDEX ();
401 Lisp_Object raw_name
;
406 raw_name
= build_string (argv
[0]);
408 /* Add /: to the front of the name
409 if it would otherwise be treated as magic. */
410 handler
= Ffind_file_name_handler (raw_name
, Qt
);
411 if (! NILP (handler
))
412 raw_name
= concat2 (build_string ("/:"), raw_name
);
414 Vinvocation_name
= Ffile_name_nondirectory (raw_name
);
415 Vinvocation_directory
= Ffile_name_directory (raw_name
);
417 /* If we got no directory in argv[0], search PATH to find where
418 Emacs actually came from. */
419 if (NILP (Vinvocation_directory
))
422 int yes
= openp (Vexec_path
, Vinvocation_name
,
423 Vexec_suffixes
, &found
, make_number (X_OK
));
426 /* Add /: to the front of the name
427 if it would otherwise be treated as magic. */
428 handler
= Ffind_file_name_handler (found
, Qt
);
429 if (! NILP (handler
))
430 found
= concat2 (build_string ("/:"), found
);
431 Vinvocation_directory
= Ffile_name_directory (found
);
435 if (!NILP (Vinvocation_directory
)
436 && NILP (Ffile_name_absolute_p (Vinvocation_directory
)))
437 /* Emacs was started with relative path, like ./emacs.
439 Vinvocation_directory
= Fexpand_file_name (Vinvocation_directory
, Qnil
);
441 Vinstallation_directory
= Qnil
;
443 if (!NILP (Vinvocation_directory
))
445 dir
= Vinvocation_directory
;
446 name
= Fexpand_file_name (Vinvocation_name
, dir
);
449 Lisp_Object tem
, lib_src_exists
;
450 Lisp_Object etc_exists
, info_exists
;
452 /* See if dir contains subdirs for use by Emacs.
453 Check for the ones that would exist in a build directory,
454 not including lisp and info. */
455 tem
= Fexpand_file_name (build_string ("lib-src"), dir
);
456 lib_src_exists
= Ffile_exists_p (tem
);
459 /* MSDOS installations frequently remove lib-src, but we still
460 must set installation-directory, or else info won't find
461 its files (it uses the value of installation-directory). */
462 tem
= Fexpand_file_name (build_string ("info"), dir
);
463 info_exists
= Ffile_exists_p (tem
);
468 if (!NILP (lib_src_exists
) || !NILP (info_exists
))
470 tem
= Fexpand_file_name (build_string ("etc"), dir
);
471 etc_exists
= Ffile_exists_p (tem
);
472 if (!NILP (etc_exists
))
474 Vinstallation_directory
475 = Ffile_name_as_directory (dir
);
480 /* See if dir's parent contains those subdirs. */
481 tem
= Fexpand_file_name (build_string ("../lib-src"), dir
);
482 lib_src_exists
= Ffile_exists_p (tem
);
486 /* See the MSDOS commentary above. */
487 tem
= Fexpand_file_name (build_string ("../info"), dir
);
488 info_exists
= Ffile_exists_p (tem
);
493 if (!NILP (lib_src_exists
) || !NILP (info_exists
))
495 tem
= Fexpand_file_name (build_string ("../etc"), dir
);
496 etc_exists
= Ffile_exists_p (tem
);
497 if (!NILP (etc_exists
))
499 tem
= Fexpand_file_name (build_string (".."), dir
);
500 Vinstallation_directory
501 = Ffile_name_as_directory (tem
);
506 /* If the Emacs executable is actually a link,
507 next try the dir that the link points into. */
508 tem
= Ffile_symlink_p (name
);
511 name
= Fexpand_file_name (tem
, dir
);
512 dir
= Ffile_name_directory (name
);
519 Vcommand_line_args
= Qnil
;
521 for (i
= argc
- 1; i
>= 0; i
--)
523 if (i
== 0 || i
> skip_args
)
524 /* For the moment, we keep arguments as is in unibyte strings.
525 They are decoded in the function command-line after we know
526 locale-coding-system. */
528 = Fcons (make_unibyte_string (argv
[i
], strlen (argv
[i
])),
532 unbind_to (count
, Qnil
);
535 DEFUN ("invocation-name", Finvocation_name
, Sinvocation_name
, 0, 0, 0,
536 doc
: /* Return the program name that was used to run Emacs.
537 Any directory names are omitted. */)
540 return Fcopy_sequence (Vinvocation_name
);
543 DEFUN ("invocation-directory", Finvocation_directory
, Sinvocation_directory
,
545 doc
: /* Return the directory name in which the Emacs executable was located. */)
548 return Fcopy_sequence (Vinvocation_directory
);
553 /* A valid but unlikely value for the TZ environment value.
554 It is OK (though a bit slower) if the user actually chooses this value. */
555 static char dump_tz
[] = "UtC0";
558 #ifndef ORDINARY_LINK
559 /* We don't include crtbegin.o and crtend.o in the link,
560 so these functions and variables might be missed.
561 Provide dummy definitions to avoid error.
562 (We don't have any real constructors or destructors.) */
565 /* Define a dummy function F. Declare F too, to pacify gcc
566 -Wmissing-prototypes. */
567 #define DEFINE_DUMMY_FUNCTION(f) \
568 void f (void) EXTERNALLY_VISIBLE; void f (void) {}
570 #ifndef GCC_CTORS_IN_LIBC
571 DEFINE_DUMMY_FUNCTION (__do_global_ctors
)
572 DEFINE_DUMMY_FUNCTION (__do_global_ctors_aux
)
573 DEFINE_DUMMY_FUNCTION (__do_global_dtors
)
574 /* GNU/Linux has a bug in its library; avoid an error. */
576 char * __CTOR_LIST__
[2] EXTERNALLY_VISIBLE
= { (char *) (-1), 0 };
578 char * __DTOR_LIST__
[2] EXTERNALLY_VISIBLE
= { (char *) (-1), 0 };
579 #endif /* GCC_CTORS_IN_LIBC */
580 DEFINE_DUMMY_FUNCTION (__main
)
581 #endif /* __GNUC__ */
582 #endif /* ORDINARY_LINK */
584 /* Test whether the next argument in ARGV matches SSTR or a prefix of
585 LSTR (at least MINLEN characters). If so, then if VALPTR is non-null
586 (the argument is supposed to have a value) store in *VALPTR either
587 the next argument or the portion of this one after the equal sign.
588 ARGV is read starting at position *SKIPPTR; this index is advanced
589 by the number of arguments used.
591 Too bad we can't just use getopt for all of this, but we don't have
592 enough information to do it right. */
595 argmatch (char **argv
, int argc
, const char *sstr
, const char *lstr
,
596 int minlen
, char **valptr
, int *skipptr
)
602 /* Don't access argv[argc]; give up in advance. */
603 if (argc
<= *skipptr
+ 1)
606 arg
= argv
[*skipptr
+1];
609 if (strcmp (arg
, sstr
) == 0)
613 *valptr
= argv
[*skipptr
+2];
620 arglen
= (valptr
!= NULL
&& (p
= strchr (arg
, '=')) != NULL
621 ? p
- arg
: strlen (arg
));
622 if (lstr
== 0 || arglen
< minlen
|| strncmp (arg
, lstr
, arglen
) != 0)
624 else if (valptr
== NULL
)
635 else if (argv
[*skipptr
+2] != NULL
)
637 *valptr
= argv
[*skipptr
+2];
647 #ifdef DOUG_LEA_MALLOC
649 /* malloc can be invoked even before main (e.g. by the dynamic
650 linker), so the dumped malloc state must be restored as early as
651 possible using this special hook. */
654 malloc_initialize_hook (void)
657 extern char **environ
;
662 if (!malloc_using_checking
)
663 /* Work around a bug in glibc's malloc. MALLOC_CHECK_ must be
664 ignored if the heap to be restored was constructed without
665 malloc checking. Can't use unsetenv, since that calls malloc. */
669 for (p
= environ
; p
&& *p
; p
++)
670 if (strncmp (*p
, "MALLOC_CHECK_=", 14) == 0)
679 malloc_set_state (malloc_state_ptr
);
680 #ifndef XMALLOC_OVERRUN_CHECK
681 free (malloc_state_ptr
);
686 if (my_heap_start
== 0)
687 my_heap_start
= sbrk (0);
688 malloc_using_checking
= getenv ("MALLOC_CHECK_") != NULL
;
692 void (*__malloc_initialize_hook
) (void) EXTERNALLY_VISIBLE
= malloc_initialize_hook
;
694 #endif /* DOUG_LEA_MALLOC */
699 main (int argc
, char **argv
)
704 char stack_bottom_variable
;
705 int do_initial_setlocale
;
707 #ifdef HAVE_SETRLIMIT
722 #if defined (USE_GTK) && defined (G_SLICE_ALWAYS_MALLOC)
723 /* This is used by the Cygwin build. */
724 setenv ("G_SLICE", "always-malloc", 1);
730 extern char my_endbss
[];
731 extern char *my_endbss_static
;
733 if (my_heap_start
== 0)
734 my_heap_start
= sbrk (0);
736 heap_bss_diff
= (char *)my_heap_start
- max (my_endbss
, my_endbss_static
);
740 #ifdef RUN_TIME_REMAP
742 run_time_remap (argv
[0]);
745 /* If using unexmacosx.c (set by s/darwin.h), we must do this. */
748 unexec_init_emacs_zone ();
751 sort_args (argc
, argv
);
753 while (argv
[argc
]) argc
++;
755 if (argmatch (argv
, argc
, "-version", "--version", 3, NULL
, &skip_args
))
757 const char *version
, *copyright
;
760 Lisp_Object tem
, tem2
;
761 tem
= Fsymbol_value (intern_c_string ("emacs-version"));
762 tem2
= Fsymbol_value (intern_c_string ("emacs-copyright"));
765 fprintf (stderr
, "Invalid value of `emacs-version'\n");
770 fprintf (stderr
, "Invalid value of `emacs-copyright'\n");
775 version
= SSDATA (tem
);
776 copyright
= SSDATA (tem2
);
781 version
= emacs_version
;
782 copyright
= emacs_copyright
;
784 printf ("GNU Emacs %s\n", version
);
785 printf ("%s\n", copyright
);
786 printf ("GNU Emacs comes with ABSOLUTELY NO WARRANTY.\n");
787 printf ("You may redistribute copies of Emacs\n");
788 printf ("under the terms of the GNU General Public License.\n");
789 printf ("For more information about these matters, ");
790 printf ("see the file named COPYING.\n");
794 if (argmatch (argv
, argc
, "-chdir", "--chdir", 4, &ch_to_dir
, &skip_args
))
795 if (chdir (ch_to_dir
) == -1)
797 fprintf (stderr
, "%s: Can't chdir to %s: %s\n",
798 argv
[0], ch_to_dir
, strerror (errno
));
803 #ifdef HAVE_PERSONALITY_LINUX32
805 && (strcmp (argv
[argc
-1], "dump") == 0
806 || strcmp (argv
[argc
-1], "bootstrap") == 0)
807 && ! getenv ("EMACS_HEAP_EXEC"))
809 static char heapexec
[] = "EMACS_HEAP_EXEC=true";
810 /* Set this so we only do this once. */
813 /* A flag to turn off address randomization which is introduced
814 in linux kernel shipped with fedora core 4 */
815 #define ADD_NO_RANDOMIZE 0x0040000
816 personality (PER_LINUX32
| ADD_NO_RANDOMIZE
);
817 #undef ADD_NO_RANDOMIZE
819 execvp (argv
[0], argv
);
821 /* If the exec fails, try to dump anyway. */
824 #endif /* HAVE_PERSONALITY_LINUX32 */
826 #if defined (HAVE_SETRLIMIT) && defined (RLIMIT_STACK)
827 /* Extend the stack space available.
828 Don't do that if dumping, since some systems (e.g. DJGPP)
829 might define a smaller stack limit at that time. */
832 && (!noninteractive
|| initialized
)
834 && !getrlimit (RLIMIT_STACK
, &rlim
))
837 extern size_t re_max_failures
;
838 /* Approximate the amount regex.c needs per unit of re_max_failures. */
839 int ratio
= 20 * sizeof (char *);
840 /* Then add 33% to cover the size of the smaller stacks that regex.c
841 successively allocates and discards, on its way to the maximum. */
843 /* Add in some extra to cover
844 what we're likely to use for other reasons. */
845 newlim
= re_max_failures
* ratio
+ 200000;
847 /* NetBSD (at least NetBSD 1.2G and former) has a bug in its
848 stack allocation routine for new process that the allocation
849 fails if stack limit is not on page boundary. So, round up the
850 new limit to page boundary. */
851 newlim
= (newlim
+ getpagesize () - 1) / getpagesize () * getpagesize ();
853 if (newlim
> rlim
.rlim_max
)
855 newlim
= rlim
.rlim_max
;
856 /* Don't let regex.c overflow the stack we have. */
857 re_max_failures
= (newlim
- 200000) / ratio
;
859 if (rlim
.rlim_cur
< newlim
)
860 rlim
.rlim_cur
= newlim
;
862 setrlimit (RLIMIT_STACK
, &rlim
);
864 #endif /* HAVE_SETRLIMIT and RLIMIT_STACK */
866 /* Record (approximately) where the stack begins. */
867 stack_bottom
= &stack_bottom_variable
;
871 #ifndef SYSTEM_MALLOC
872 /* Arrange to get warning messages as memory fills up. */
873 memory_warnings (0, malloc_warning
);
875 /* Call malloc at least once, to run the initial __malloc_hook.
876 Also call realloc and free for consistency. */
877 free (realloc (malloc (4), 4));
880 /* Arrange to disable interrupt input inside malloc etc. */
881 uninterrupt_malloc ();
882 # endif /* not SYNC_INPUT */
883 #endif /* not SYSTEM_MALLOC */
885 #ifdef FORWARD_SIGNAL_TO_MAIN_THREAD
886 main_thread
= pthread_self ();
887 #endif /* FORWARD_SIGNAL_TO_MAIN_THREAD */
889 #if defined (MSDOS) || defined (WINDOWSNT)
890 /* We do all file input/output as binary files. When we need to translate
891 newlines, we do that manually. */
893 #endif /* MSDOS || WINDOWSNT */
896 if (!isatty (fileno (stdin
)))
897 setmode (fileno (stdin
), O_BINARY
);
898 if (!isatty (fileno (stdout
)))
901 setmode (fileno (stdout
), O_BINARY
);
905 /* Skip initial setlocale if LC_ALL is "C", as it's not needed in that case.
906 The build procedure uses this while dumping, to ensure that the
907 dumped Emacs does not have its system locale tables initialized,
908 as that might cause screwups when the dumped Emacs starts up. */
910 char *lc_all
= getenv ("LC_ALL");
911 do_initial_setlocale
= ! lc_all
|| strcmp (lc_all
, "C");
914 /* Set locale now, so that initial error messages are localized properly.
915 fixup_locale must wait until later, since it builds strings. */
916 if (do_initial_setlocale
)
917 setlocale (LC_ALL
, "");
919 inhibit_window_system
= 0;
921 /* Handle the -t switch, which specifies filename to use as terminal. */
925 if (argmatch (argv
, argc
, "-t", "--terminal", 4, &term
, &skip_args
))
930 result
= emacs_open (term
, O_RDWR
, 0);
931 if (result
< 0 || dup (0) < 0)
933 char *errstring
= strerror (errno
);
934 fprintf (stderr
, "%s: %s: %s\n", argv
[0], term
, errstring
);
939 fprintf (stderr
, "%s: %s: not a tty\n", argv
[0], term
);
942 fprintf (stderr
, "Using %s\n", term
);
943 #ifdef HAVE_WINDOW_SYSTEM
944 inhibit_window_system
= 1; /* -t => -nw */
951 /* Command line option --no-windows is deprecated and thus not mentioned
952 in the manual and usage informations. */
953 if (argmatch (argv
, argc
, "-nw", "--no-window-system", 6, NULL
, &skip_args
)
954 || argmatch (argv
, argc
, "-nw", "--no-windows", 6, NULL
, &skip_args
))
955 inhibit_window_system
= 1;
957 /* Handle the -batch switch, which means don't do interactive display. */
959 if (argmatch (argv
, argc
, "-batch", "--batch", 5, NULL
, &skip_args
))
962 Vundo_outer_limit
= Qnil
;
964 if (argmatch (argv
, argc
, "-script", "--script", 3, &junk
, &skip_args
))
966 noninteractive
= 1; /* Set batch mode. */
967 /* Convert --script to -scriptload, un-skip it, and sort again
968 so that it will be handled in proper sequence. */
969 /* FIXME broken for --script=FILE - is that supposed to work? */
970 argv
[skip_args
- 1] = (char *) "-scriptload";
972 sort_args (argc
, argv
);
975 /* Handle the --help option, which gives a usage message. */
976 if (argmatch (argv
, argc
, "-help", "--help", 3, NULL
, &skip_args
))
978 printf (USAGE1
, argv
[0], USAGE2
);
984 if (argmatch (argv
, argc
, "-daemon", "--daemon", 5, NULL
, &skip_args
)
985 || argmatch (argv
, argc
, "-daemon", "--daemon", 5, &dname_arg
, &skip_args
))
990 /* Start as a daemon: fork a new child process which will run the
991 rest of the initialization code, then exit.
993 Detaching a daemon requires the following steps:
997 - close the tty file-descriptors
999 We only want to do the last 2 steps once the daemon is ready to
1000 serve requests, i.e. after loading .emacs (initialization).
1001 OTOH initialization may start subprocesses (e.g. ispell) and these
1002 should be run from the proper process (the one that will end up
1003 running as daemon) and with the proper "session id" in order for
1004 them to keep working after detaching, so fork and setsid need to be
1005 performed before initialization.
1007 We want to avoid exiting before the server socket is ready, so
1008 use a pipe for synchronization. The parent waits for the child
1009 to close its end of the pipe (using `daemon-initialized')
1011 if (pipe (daemon_pipe
) == -1)
1013 fprintf (stderr
, "Cannot pipe!\n");
1017 #ifndef NS_IMPL_COCOA
1019 fprintf (stderr
, "\nWarning: due to a long standing Gtk+ bug\nhttp://bugzilla.gnome.org/show_bug.cgi?id=85715\n\
1020 Emacs might crash when run in daemon mode and the X11 connection is unexpectedly lost.\n\
1021 Using an Emacs configured with --with-x-toolkit=lucid does not have this problem.\n");
1024 #else /* NS_IMPL_COCOA */
1025 /* Under Cocoa we must do fork+exec as CoreFoundation lib fails in
1026 forked process: http://developer.apple.com/ReleaseNotes/
1027 CoreFoundation/CoreFoundation.html)
1028 We mark being in the exec'd process by a daemon name argument of
1029 form "--daemon=\nFD0,FD1\nNAME" where FD are the pipe file descriptors,
1030 NAME is the original daemon name, if any. */
1031 if (!dname_arg
|| !strchr (dname_arg
, '\n'))
1032 f
= fork (); /* in orig */
1034 f
= 0; /* in exec'd */
1035 #endif /* NS_IMPL_COCOA */
1041 /* Close unused writing end of the pipe. */
1042 close (daemon_pipe
[1]);
1044 /* Just wait for the child to close its end of the pipe. */
1047 retval
= read (daemon_pipe
[0], &buf
, 1);
1049 while (retval
== -1 && errno
== EINTR
);
1053 fprintf (stderr
, "Error reading status from child\n");
1056 else if (retval
== 0)
1058 fprintf (stderr
, "Error: server did not start correctly\n");
1062 close (daemon_pipe
[0]);
1067 fprintf (stderr
, "Cannot fork!\n");
1071 #ifdef NS_IMPL_COCOA
1073 /* In orig process, forked as child, OR in exec'd. */
1074 if (!dname_arg
|| !strchr (dname_arg
, '\n'))
1075 { /* In orig, child: now exec w/special daemon name. */
1078 snprintf (fdStr
, sizeof fdStr
,
1079 "--daemon=\n%d,%d\n%s", daemon_pipe
[0],
1080 daemon_pipe
[1], dname_arg
? dname_arg
: "");
1082 if (! (0 <= fdStrlen
&& fdStrlen
< sizeof fdStr
))
1084 fprintf (stderr
, "daemon: child name too long\n");
1088 argv
[skip_args
] = fdStr
;
1090 execv (argv
[0], argv
);
1091 fprintf (stderr
, "emacs daemon: exec failed: %d\n", errno
);
1095 /* In exec'd: parse special dname into pipe and name info. */
1096 if (!dname_arg
|| !strchr (dname_arg
, '\n')
1097 || strlen (dname_arg
) < 1 || strlen (dname_arg
) > 70)
1099 fprintf (stderr
, "emacs daemon: daemon name absent or too long\n");
1102 dname_arg2
[0] = '\0';
1103 sscanf (dname_arg
, "\n%d,%d\n%s", &(daemon_pipe
[0]), &(daemon_pipe
[1]),
1105 dname_arg
= *dname_arg2
? dname_arg2
: NULL
;
1107 #endif /* NS_IMPL_COCOA */
1110 daemon_name
= xstrdup (dname_arg
);
1111 /* Close unused reading end of the pipe. */
1112 close (daemon_pipe
[0]);
1113 /* Make sure that the used end of the pipe is closed on exec, so
1114 that it is not accessible to programs started from .emacs. */
1115 fcntl (daemon_pipe
[1], F_SETFD
, FD_CLOEXEC
);
1121 fprintf (stderr
, "This platform does not support the -daemon flag.\n");
1126 if (! noninteractive
)
1128 #if defined (USG5) && defined (INTERRUPT_INPUT)
1131 #if defined (HAVE_PTHREAD) && !defined (SYSTEM_MALLOC) && !defined (DOUG_LEA_MALLOC)
1133 extern void malloc_enable_thread (void);
1135 malloc_enable_thread ();
1142 /* Don't catch SIGHUP if dumping. */
1149 sigblock (sigmask (SIGHUP
));
1150 /* In --batch mode, don't catch SIGHUP if already ignored.
1151 That makes nohup work. */
1152 if (! noninteractive
1153 || signal (SIGHUP
, SIG_IGN
) != SIG_IGN
)
1154 signal (SIGHUP
, fatal_error_signal
);
1155 sigunblock (sigmask (SIGHUP
));
1160 ! noninteractive
|| initialized
1166 /* Don't catch these signals in batch mode if dumping.
1167 On some machines, this sets static data that would make
1168 signal fail to work right when the dumped Emacs is run. */
1169 signal (SIGQUIT
, fatal_error_signal
);
1170 signal (SIGILL
, fatal_error_signal
);
1171 signal (SIGTRAP
, fatal_error_signal
);
1173 add_user_signal (SIGUSR1
, "sigusr1");
1176 add_user_signal (SIGUSR2
, "sigusr2");
1179 signal (SIGABRT
, fatal_error_signal
);
1182 signal (SIGHWE
, fatal_error_signal
);
1185 signal (SIGPRE
, fatal_error_signal
);
1188 signal (SIGORE
, fatal_error_signal
);
1191 signal (SIGUME
, fatal_error_signal
);
1194 signal (SIGDLK
, fatal_error_signal
);
1197 signal (SIGCPULIM
, fatal_error_signal
);
1200 /* This is missing on some systems - OS/2, for example. */
1201 signal (SIGIOT
, fatal_error_signal
);
1204 signal (SIGEMT
, fatal_error_signal
);
1206 signal (SIGFPE
, fatal_error_signal
);
1208 signal (SIGBUS
, fatal_error_signal
);
1210 signal (SIGSEGV
, fatal_error_signal
);
1212 signal (SIGSYS
, fatal_error_signal
);
1214 /* May need special treatment on MS-Windows. See
1215 http://lists.gnu.org/archive/html/emacs-devel/2010-09/msg01062.html
1216 Please update the doc of kill-emacs, kill-emacs-hook, and
1217 NEWS if you change this.
1219 if (noninteractive
) signal (SIGINT
, fatal_error_signal
);
1220 signal (SIGTERM
, fatal_error_signal
);
1222 signal (SIGXCPU
, fatal_error_signal
);
1225 signal (SIGXFSZ
, fatal_error_signal
);
1226 #endif /* SIGXFSZ */
1229 /* This just means available memory is getting low. */
1230 signal (SIGDANGER
, memory_warning_signal
);
1234 /* 20 is SIGCHLD, 21 is SIGTTIN, 22 is SIGTTOU. */
1235 signal (SIGXCPU
, fatal_error_signal
);
1236 signal (SIGIOINT
, fatal_error_signal
);
1237 signal (SIGGRANT
, fatal_error_signal
);
1238 signal (SIGRETRACT
, fatal_error_signal
);
1239 signal (SIGSOUND
, fatal_error_signal
);
1240 signal (SIGMSG
, fatal_error_signal
);
1244 noninteractive1
= noninteractive
;
1246 /* Perform basic initializations (not merely interning symbols). */
1253 init_character_once ();
1254 init_charset_once ();
1255 init_coding_once ();
1256 init_syntax_once (); /* Create standard syntax table. */
1257 init_category_once (); /* Create standard category table. */
1258 /* Must be done before init_buffer. */
1259 init_casetab_once ();
1260 init_buffer_once (); /* Create buffer table and some buffers. */
1261 init_minibuf_once (); /* Create list of minibuffers. */
1262 /* Must precede init_window_once. */
1264 /* Call syms_of_xfaces before init_window_once because that
1265 function creates Vterminal_frame. Termcap frames now use
1266 faces, and the face implementation uses some symbols as
1269 /* XXX syms_of_keyboard uses some symbols in keymap.c. It would
1270 be better to arrange things not to have this dependency. */
1272 /* Call syms_of_keyboard before init_window_once because
1273 keyboard sets up symbols that include some face names that
1274 the X support will want to use. This can happen when
1275 CANNOT_DUMP is defined. */
1276 syms_of_keyboard ();
1278 /* Called before syms_of_fileio, because it sets up Qerror_condition. */
1281 /* Before syms_of_coding to initialize Vgc_cons_threshold. */
1283 /* Before syms_of_coding because it initializes Qcharsetp. */
1285 /* Before init_window_once, because it sets up the
1286 Vcoding_system_hash_table. */
1287 syms_of_coding (); /* This should be after syms_of_fileio. */
1289 init_window_once (); /* Init the window system. */
1290 #ifdef HAVE_WINDOW_SYSTEM
1291 init_fringe_once (); /* Swap bitmaps if necessary. */
1292 #endif /* HAVE_WINDOW_SYSTEM */
1297 if (do_initial_setlocale
)
1300 Vsystem_messages_locale
= Vprevious_system_messages_locale
;
1301 Vsystem_time_locale
= Vprevious_system_time_locale
;
1306 #ifdef CLASH_DETECTION
1310 running_asynch_code
= 0;
1313 = argmatch (argv
, argc
, "-nl", "--no-loadup", 6, NULL
, &skip_args
);
1316 = argmatch (argv
, argc
, "-nsl", "--no-site-lisp", 11, NULL
, &skip_args
);
1319 ns_alloc_autorelease_pool ();
1320 if (!noninteractive
)
1322 #ifdef NS_IMPL_COCOA
1323 if (skip_args
< argc
)
1325 /* FIXME: Do the right thing if getenv returns NULL, or if
1327 if (!strncmp (argv
[skip_args
], "-psn", 4))
1330 chdir (getenv ("HOME"));
1332 else if (skip_args
+1 < argc
&& !strncmp (argv
[skip_args
+1], "-psn", 4))
1335 chdir (getenv ("HOME"));
1340 #endif /* HAVE_NS */
1342 #ifdef HAVE_X_WINDOWS
1343 /* Stupid kludge to catch command-line display spec. We can't
1344 handle this argument entirely in window system dependent code
1345 because we don't even know which window system dependent code
1346 to run until we've recognized this argument. */
1348 char *displayname
= 0;
1349 int count_before
= skip_args
;
1351 /* Skip any number of -d options, but only use the last one. */
1354 int count_before_this
= skip_args
;
1356 if (argmatch (argv
, argc
, "-d", "--display", 3, &displayname
, &skip_args
))
1358 else if (argmatch (argv
, argc
, "-display", 0, 3, &displayname
, &skip_args
))
1363 count_before
= count_before_this
;
1366 /* If we have the form --display=NAME,
1367 convert it into -d name.
1368 This requires inserting a new element into argv. */
1369 if (displayname
&& count_before
< skip_args
)
1371 if (skip_args
== count_before
+ 1)
1373 memmove (argv
+ count_before
+ 3, argv
+ count_before
+ 2,
1374 (argc
- (count_before
+ 2)) * sizeof *argv
);
1375 argv
[count_before
+ 2] = displayname
;
1378 argv
[count_before
+ 1] = (char *) "-d";
1383 if (argmatch (argv
, argc
, "-Q", "--quick", 3, NULL
, &skip_args
)
1384 || argmatch (argv
, argc
, "-quick", 0, 2, NULL
, &skip_args
))
1388 /* Don't actually discard this arg. */
1389 skip_args
= count_before
;
1391 #else /* !HAVE_X_WINDOWS */
1394 int count_before
= skip_args
;
1396 if (argmatch (argv
, argc
, "-Q", "--quick", 3, NULL
, &skip_args
)
1397 || argmatch (argv
, argc
, "-quick", 0, 2, NULL
, &skip_args
))
1400 skip_args
= count_before
;
1404 /* argmatch must not be used after here,
1405 except when bulding temacs
1406 because the -d argument has not been skipped in skip_args. */
1409 /* Call early 'cause init_environment needs it. */
1411 /* Set defaults for several environment variables. */
1413 init_environment (argc
, argv
, skip_args
);
1420 /* Initialize environment from registry settings. */
1421 init_environment (argv
);
1422 init_ntproc (); /* must precede init_editfns. */
1432 /* Initialize and GC-protect Vinitial_environment and
1433 Vprocess_environment before set_initial_environment fills them
1436 syms_of_callproc ();
1437 /* egetenv is a pretty low-level facility, which may get called in
1438 many circumstances; it seems flimsy to put off initializing it
1439 until calling init_callproc. Do not do it when dumping. */
1440 if (initialized
|| ((strcmp (argv
[argc
-1], "dump") != 0
1441 && strcmp (argv
[argc
-1], "bootstrap") != 0)))
1442 set_initial_environment ();
1444 /* AIX crashes are reported in system versions 3.2.3 and 3.2.4
1445 if this is not done. Do it after set_global_environment so that we
1446 don't pollute Vglobal_environment. */
1447 /* Setting LANG here will defeat the startup locale processing... */
1452 init_buffer (); /* Init default directory of main buffer. */
1454 init_callproc_1 (); /* Must precede init_cmdargs and init_sys_modes. */
1455 init_cmdargs (argc
, argv
, skip_args
); /* Must precede init_lread. */
1459 /* Erase any pre-dump messages in the message log, to avoid confusion. */
1460 Lisp_Object old_log_max
;
1461 old_log_max
= Vmessage_log_max
;
1462 XSETFASTINT (Vmessage_log_max
, 0);
1463 message_dolog ("", 0, 1, 0);
1464 Vmessage_log_max
= old_log_max
;
1467 init_callproc (); /* Must follow init_cmdargs but not init_sys_modes. */
1470 /* Intern the names of all standard functions and variables;
1471 define standard keys. */
1475 /* The basic levels of Lisp must come first. Note that
1476 syms_of_data and some others have already been called. */
1482 syms_of_floatfns ();
1485 syms_of_bytecode ();
1487 syms_of_casefiddle ();
1489 syms_of_category ();
1491 syms_of_character ();
1498 syms_of_filelock ();
1501 /* syms_of_keymap (); */
1509 syms_of_terminal ();
1515 syms_of_textprop ();
1516 syms_of_composite ();
1519 #endif /* WINDOWSNT */
1523 #ifdef HAVE_WINDOW_SYSTEM
1526 #endif /* HAVE_WINDOW_SYSTEM */
1527 #ifdef HAVE_X_WINDOWS
1532 syms_of_xsettings ();
1539 #endif /* HAVE_X_WINDOWS */
1550 syms_of_w32select ();
1553 #endif /* HAVE_NTGUI */
1559 syms_of_win16select ();
1566 syms_of_nsselect ();
1568 #endif /* HAVE_NS */
1575 syms_of_dbusbind ();
1576 #endif /* HAVE_DBUS */
1580 #endif /* WINDOWSNT */
1582 keys_of_casefiddle ();
1585 keys_of_keyboard ();
1591 /* Initialization that must be done even if the global variable
1592 initialized is non zero. */
1594 globals_of_w32font ();
1595 globals_of_w32fns ();
1596 globals_of_w32menu ();
1597 globals_of_w32select ();
1598 #endif /* HAVE_NTGUI */
1603 init_editfns (); /* init_process uses Voperating_system_release. */
1604 init_process (); /* init_display uses add_keyboard_wait_descriptor. */
1605 init_keyboard (); /* This too must precede init_sys_modes. */
1606 if (!noninteractive
)
1607 init_display (); /* Determine terminal type. Calls init_sys_modes. */
1610 #ifdef HAVE_WINDOW_SYSTEM
1613 #endif /* HAVE_WINDOW_SYSTEM */
1625 /* Handle -l loadup, args passed by Makefile. */
1626 if (argmatch (argv
, argc
, "-l", "--load", 3, &file
, &skip_args
))
1627 Vtop_level
= Fcons (intern_c_string ("load"),
1628 Fcons (build_string (file
), Qnil
));
1629 /* Unless next switch is -nl, load "loadup.el" first thing. */
1631 Vtop_level
= Fcons (intern_c_string ("load"),
1632 Fcons (build_string ("loadup.el"), Qnil
));
1639 /* If the execution TZ happens to be the same as the dump TZ,
1640 change it to some other value and then change it back,
1641 to force the underlying implementation to reload the TZ info.
1642 This is needed on implementations that load TZ info from files,
1643 since the TZ file contents may differ between dump and execution. */
1644 char *tz
= getenv ("TZ");
1645 if (tz
&& !strcmp (tz
, dump_tz
))
1655 /* Set up for profiling. This is known to work on FreeBSD,
1656 GNU/Linux and MinGW. It might work on some other systems too.
1657 Give it a try and tell us if it works on your system. To compile
1658 for profiling, use the configure option --enable-profiling. */
1659 #if defined (__FreeBSD__) || defined (GNU_LINUX) || defined (__MINGW32__)
1663 extern void _mcleanup ();
1665 extern unsigned char etext
asm ("etext");
1669 #ifdef HAVE___EXECUTABLE_START
1670 /* This symbol is defined by GNU ld to the start of the text
1672 extern char __executable_start
[];
1674 extern void safe_bcopy ();
1678 #ifdef HAVE___EXECUTABLE_START
1679 monstartup (__executable_start
, &etext
);
1681 /* This uses safe_bcopy because that function comes first in the
1682 Emacs executable. It might be better to use something that
1683 gives the start of the text segment, but start_of_text is not
1684 defined on all systems now. */
1685 /* FIXME: Does not work on architectures with function
1687 monstartup (safe_bcopy
, &etext
);
1697 #ifdef LOCALTIME_CACHE
1698 /* Some versions of localtime have a bug. They cache the value of the time
1699 zone rather than looking it up every time. Since localtime() is
1700 called to bolt the undumping time into the undumped emacs, this
1701 results in localtime ignoring the TZ environment variable.
1702 This flushes the new TZ value into localtime. */
1704 #endif /* defined (LOCALTIME_CACHE) */
1706 /* Enter editor command loop. This never returns. */
1712 /* Sort the args so we can find the most important ones
1713 at the beginning of argv. */
1715 /* First, here's a table of all the standard options. */
1717 struct standard_args
1720 const char *longname
;
1725 static const struct standard_args standard_args
[] =
1727 { "-version", "--version", 150, 0 },
1728 { "-chdir", "--chdir", 130, 1 },
1729 { "-t", "--terminal", 120, 1 },
1730 { "-nw", "--no-window-system", 110, 0 },
1731 { "-nw", "--no-windows", 110, 0 },
1732 { "-batch", "--batch", 100, 0 },
1733 { "-script", "--script", 100, 1 },
1734 { "-daemon", "--daemon", 99, 0 },
1735 { "-help", "--help", 90, 0 },
1736 { "-nl", "--no-loadup", 70, 0 },
1737 { "-nsl", "--no-site-lisp", 65, 0 },
1738 /* -d must come last before the options handled in startup.el. */
1739 { "-d", "--display", 60, 1 },
1740 { "-display", 0, 60, 1 },
1741 /* Now for the options handled in `command-line' (startup.el). */
1742 /* (Note that to imply -nsl, -Q is partially handled here.) */
1743 { "-Q", "--quick", 55, 0 },
1744 { "-quick", 0, 55, 0 },
1745 { "-q", "--no-init-file", 50, 0 },
1746 { "-no-init-file", 0, 50, 0 },
1747 { "-no-site-file", "--no-site-file", 40, 0 },
1748 { "-u", "--user", 30, 1 },
1749 { "-user", 0, 30, 1 },
1750 { "-debug-init", "--debug-init", 20, 0 },
1751 { "-iconic", "--iconic", 15, 0 },
1752 { "-D", "--basic-display", 12, 0},
1753 { "-basic-display", 0, 12, 0},
1754 { "-nbc", "--no-blinking-cursor", 12, 0 },
1755 /* Now for the options handled in `command-line-1' (startup.el). */
1756 { "-nbi", "--no-bitmap-icon", 10, 0 },
1757 { "-bg", "--background-color", 10, 1 },
1758 { "-background", 0, 10, 1 },
1759 { "-fg", "--foreground-color", 10, 1 },
1760 { "-foreground", 0, 10, 1 },
1761 { "-bd", "--border-color", 10, 1 },
1762 { "-bw", "--border-width", 10, 1 },
1763 { "-ib", "--internal-border", 10, 1 },
1764 { "-ms", "--mouse-color", 10, 1 },
1765 { "-cr", "--cursor-color", 10, 1 },
1766 { "-fn", "--font", 10, 1 },
1767 { "-font", 0, 10, 1 },
1768 { "-fs", "--fullscreen", 10, 0 },
1769 { "-fw", "--fullwidth", 10, 0 },
1770 { "-fh", "--fullheight", 10, 0 },
1771 { "-mm", "--maximized", 10, 0 },
1772 { "-g", "--geometry", 10, 1 },
1773 { "-geometry", 0, 10, 1 },
1774 { "-T", "--title", 10, 1 },
1775 { "-title", 0, 10, 1 },
1776 { "-name", "--name", 10, 1 },
1777 { "-xrm", "--xrm", 10, 1 },
1778 { "-parent-id", "--parent-id", 10, 1 },
1779 { "-r", "--reverse-video", 5, 0 },
1781 { "-reverse", 0, 5, 0 },
1782 { "-hb", "--horizontal-scroll-bars", 5, 0 },
1783 { "-vb", "--vertical-scroll-bars", 5, 0 },
1784 { "-color", "--color", 5, 0},
1785 { "-no-splash", "--no-splash", 3, 0 },
1786 { "-no-desktop", "--no-desktop", 3, 0 },
1788 { "-NSAutoLaunch", 0, 5, 1 },
1789 { "-NXAutoLaunch", 0, 5, 1 },
1790 { "-disable-font-backend", "--disable-font-backend", 65, 0 },
1791 { "-_NSMachLaunch", 0, 85, 1 },
1792 { "-MachLaunch", 0, 85, 1 },
1793 { "-macosx", 0, 85, 0 },
1794 { "-NSHost", 0, 85, 1 },
1796 /* These have the same priority as ordinary file name args,
1797 so they are not reordered with respect to those. */
1798 { "-L", "--directory", 0, 1 },
1799 { "-directory", 0, 0, 1 },
1800 { "-l", "--load", 0, 1 },
1801 { "-load", 0, 0, 1 },
1802 /* This has no longname, because using --scriptload confuses sort_args,
1803 because then the --script long option seems to match twice; ie
1804 you can't have a long option which is a prefix of another long
1805 option. In any case, this is entirely an internal option. */
1806 { "-scriptload", NULL
, 0, 1 },
1807 { "-f", "--funcall", 0, 1 },
1808 { "-funcall", 0, 0, 1 },
1809 { "-eval", "--eval", 0, 1 },
1810 { "-execute", "--execute", 0, 1 },
1811 { "-find-file", "--find-file", 0, 1 },
1812 { "-visit", "--visit", 0, 1 },
1813 { "-file", "--file", 0, 1 },
1814 { "-insert", "--insert", 0, 1 },
1816 { "-NXOpen", 0, 0, 1 },
1817 { "-NXOpenTemp", 0, 0, 1 },
1818 { "-NSOpen", 0, 0, 1 },
1819 { "-NSOpenTemp", 0, 0, 1 },
1820 { "-GSFilePath", 0, 0, 1 },
1822 /* This should be processed after ordinary file name args and the like. */
1823 { "-kill", "--kill", -10, 0 },
1826 /* Reorder the elements of ARGV (assumed to have ARGC elements)
1827 so that the highest priority ones come first.
1828 Do not change the order of elements of equal priority.
1829 If an option takes an argument, keep it and its argument together.
1831 If an option that takes no argument appears more
1832 than once, eliminate all but one copy of it. */
1835 sort_args (int argc
, char **argv
)
1837 char **new = (char **) xmalloc (sizeof (char *) * argc
);
1838 /* For each element of argv,
1839 the corresponding element of options is:
1840 0 for an option that takes no arguments,
1841 1 for an option that takes one argument, etc.
1842 -1 for an ordinary non-option argument. */
1843 int *options
= xnmalloc (argc
, sizeof *options
);
1844 int *priority
= xnmalloc (argc
, sizeof *priority
);
1846 int incoming_used
= 1;
1850 /* Categorize all the options,
1851 and figure out which argv elts are option arguments. */
1852 for (from
= 1; from
< argc
; from
++)
1856 if (argv
[from
][0] == '-')
1860 /* If we have found "--", don't consider
1861 any more arguments as options. */
1862 if (argv
[from
][1] == '-' && argv
[from
][2] == 0)
1864 /* Leave the "--", and everything following it, at the end. */
1865 for (; from
< argc
; from
++)
1867 priority
[from
] = -100;
1873 /* Look for a match with a known old-fashioned option. */
1874 for (i
= 0; i
< sizeof (standard_args
) / sizeof (standard_args
[0]); i
++)
1875 if (!strcmp (argv
[from
], standard_args
[i
].name
))
1877 options
[from
] = standard_args
[i
].nargs
;
1878 priority
[from
] = standard_args
[i
].priority
;
1879 if (from
+ standard_args
[i
].nargs
>= argc
)
1880 fatal ("Option `%s' requires an argument\n", argv
[from
]);
1881 from
+= standard_args
[i
].nargs
;
1885 /* Look for a match with a known long option.
1886 MATCH is -1 if no match so far, -2 if two or more matches so far,
1887 >= 0 (the table index of the match) if just one match so far. */
1888 if (argv
[from
][1] == '-')
1890 char const *equals
= strchr (argv
[from
], '=');
1892 equals
? equals
- argv
[from
] : strlen (argv
[from
]);
1897 i
< sizeof (standard_args
) / sizeof (standard_args
[0]); i
++)
1898 if (standard_args
[i
].longname
1899 && !strncmp (argv
[from
], standard_args
[i
].longname
,
1908 /* If we found exactly one match, use that. */
1911 options
[from
] = standard_args
[match
].nargs
;
1912 priority
[from
] = standard_args
[match
].priority
;
1913 /* If --OPTION=VALUE syntax is used,
1914 this option uses just one argv element. */
1917 if (from
+ options
[from
] >= argc
)
1918 fatal ("Option `%s' requires an argument\n", argv
[from
]);
1919 from
+= options
[from
];
1921 /* FIXME When match < 0, shouldn't there be some error,
1922 or at least indication to the user that there was a
1929 /* Copy the arguments, in order of decreasing priority, to NEW. */
1931 while (incoming_used
< argc
)
1934 int best_priority
= -9999;
1936 /* Find the highest priority remaining option.
1937 If several have equal priority, take the first of them. */
1938 for (from
= 1; from
< argc
; from
++)
1940 if (argv
[from
] != 0 && priority
[from
] > best_priority
)
1942 best_priority
= priority
[from
];
1945 /* Skip option arguments--they are tied to the options. */
1946 if (options
[from
] > 0)
1947 from
+= options
[from
];
1953 /* Copy the highest priority remaining option, with its args, to NEW.
1954 Unless it is a duplicate of the previous one. */
1955 if (! (options
[best
] == 0
1956 && ! strcmp (new[to
- 1], argv
[best
])))
1958 new[to
++] = argv
[best
];
1959 for (i
= 0; i
< options
[best
]; i
++)
1960 new[to
++] = argv
[best
+ i
+ 1];
1963 incoming_used
+= 1 + (options
[best
] > 0 ? options
[best
] : 0);
1965 /* Clear out this option in ARGV. */
1967 for (i
= 0; i
< options
[best
]; i
++)
1968 argv
[best
+ i
+ 1] = 0;
1971 /* If duplicate options were deleted, fill up extra space with null ptrs. */
1975 memcpy (argv
, new, sizeof (char *) * argc
);
1982 DEFUN ("kill-emacs", Fkill_emacs
, Skill_emacs
, 0, 1, "P",
1983 doc
: /* Exit the Emacs job and kill it.
1984 If ARG is an integer, return ARG as the exit program code.
1985 If ARG is a string, stuff it as keyboard input.
1987 This function is called upon receipt of the signals SIGTERM
1988 or SIGHUP, and upon SIGINT in batch mode.
1990 The value of `kill-emacs-hook', if not void,
1991 is a list of functions (of no args),
1992 all of which are called before Emacs is actually killed. */)
1995 struct gcpro gcpro1
;
2004 hook
= intern ("kill-emacs-hook");
2005 Frun_hooks (1, &hook
);
2009 #ifdef HAVE_X_WINDOWS
2010 /* Transfer any clipboards we own to the clipboard manager. */
2011 x_clipboard_manager_save_all ();
2014 shut_down_emacs (0, 0, STRINGP (arg
) ? arg
: Qnil
);
2016 /* If we have an auto-save list file,
2017 kill it because we are exiting Emacs deliberately (not crashing).
2018 Do it after shut_down_emacs, which does an auto-save. */
2019 if (STRINGP (Vauto_save_list_file_name
))
2020 unlink (SSDATA (Vauto_save_list_file_name
));
2023 exit_code
= (XINT (arg
) < 0
2024 ? XINT (arg
) | INT_MIN
2025 : XINT (arg
) & INT_MAX
);
2026 else if (noninteractive
&& (fflush (stdout
) || ferror (stdout
)))
2027 exit_code
= EXIT_FAILURE
;
2029 exit_code
= EXIT_SUCCESS
;
2034 /* Perform an orderly shutdown of Emacs. Autosave any modified
2035 buffers, kill any child processes, clean up the terminal modes (if
2036 we're in the foreground), and other stuff like that. Don't perform
2037 any redisplay; this may be called when Emacs is shutting down in
2038 the background, or after its X connection has died.
2040 If SIG is a signal number, print a message for it.
2042 This is called by fatal signal handlers, X protocol error handlers,
2046 shut_down_emacs (int sig
, int no_x
, Lisp_Object stuff
)
2048 /* Prevent running of hooks from now on. */
2051 /* Don't update display from now on. */
2052 Vinhibit_redisplay
= Qt
;
2054 /* If we are controlling the terminal, reset terminal modes. */
2057 int pgrp
= EMACS_GETPGRP (0);
2058 int tpgrp
= tcgetpgrp (0);
2059 if ((tpgrp
!= -1) && tpgrp
== pgrp
)
2061 reset_all_sys_modes ();
2062 if (sig
&& sig
!= SIGTERM
)
2063 fprintf (stderr
, "Fatal error (%d)", sig
);
2068 reset_all_sys_modes ();
2071 stuff_buffered_input (stuff
);
2073 inhibit_sentinels
= 1;
2074 kill_buffer_processes (Qnil
);
2075 Fdo_auto_save (Qt
, Qnil
);
2077 #ifdef CLASH_DETECTION
2078 unlock_all_files ();
2081 #if 0 /* This triggers a bug in XCloseDisplay and is not needed. */
2082 #ifdef HAVE_X_WINDOWS
2083 /* It's not safe to call intern here. Maybe we are crashing. */
2084 if (!noninteractive
&& SYMBOLP (Vinitial_window_system
)
2085 && SCHARS (SYMBOL_NAME (Vinitial_window_system
)) == 1
2086 && SREF (SYMBOL_NAME (Vinitial_window_system
), 0) == 'x'
2088 Fx_close_current_connection ();
2089 #endif /* HAVE_X_WINDOWS */
2093 /* There is a tendency for a SIGIO signal to arrive within exit,
2094 and cause a SIGHUP because the input descriptor is already closed. */
2096 signal (SIGIO
, SIG_IGN
);
2103 /* Do this only if terminating normally, we want glyph matrices
2104 etc. in a core dump. */
2105 if (sig
== 0 || sig
== SIGTERM
)
2107 check_glyph_memory ();
2108 check_message_stack ();
2116 ns_term_shutdown (sig
);
2120 xmlCleanupParser ();
2130 DEFUN ("dump-emacs", Fdump_emacs
, Sdump_emacs
, 2, 2, 0,
2131 doc
: /* Dump current state of Emacs into executable file FILENAME.
2132 Take symbols from SYMFILE (presumably the file you executed to run Emacs).
2133 This is used in the file `loadup.el' when building Emacs.
2135 You must run Emacs in batch mode in order to dump it. */)
2136 (Lisp_Object filename
, Lisp_Object symfile
)
2140 ptrdiff_t count
= SPECPDL_INDEX ();
2144 if (! noninteractive
)
2145 error ("Dumping Emacs works only in batch mode");
2149 /* Warn if the gap between BSS end and heap start is larger than this. */
2150 # define MAX_HEAP_BSS_DIFF (1024*1024)
2152 if (heap_bss_diff
> MAX_HEAP_BSS_DIFF
)
2154 fprintf (stderr
, "**************************************************\n");
2155 fprintf (stderr
, "Warning: Your system has a gap between BSS and the\n");
2156 fprintf (stderr
, "heap (%"pMu
" bytes). This usually means that exec-shield\n",
2158 fprintf (stderr
, "or something similar is in effect. The dump may\n");
2159 fprintf (stderr
, "fail because of this. See the section about\n");
2160 fprintf (stderr
, "exec-shield in etc/PROBLEMS for more information.\n");
2161 fprintf (stderr
, "**************************************************\n");
2163 #endif /* GNU_LINUX */
2165 /* Bind `command-line-processed' to nil before dumping,
2166 so that the dumped Emacs will process its command line
2167 and set up to work with X windows if appropriate. */
2168 symbol
= intern ("command-line-processed");
2169 specbind (symbol
, Qnil
);
2171 CHECK_STRING (filename
);
2172 filename
= Fexpand_file_name (filename
, Qnil
);
2173 if (!NILP (symfile
))
2175 CHECK_STRING (symfile
);
2176 if (SCHARS (symfile
))
2177 symfile
= Fexpand_file_name (symfile
, Qnil
);
2181 Vpurify_flag
= Qnil
;
2184 set_time_zone_rule (dump_tz
);
2185 #ifndef LOCALTIME_CACHE
2186 /* Force a tz reload, since set_time_zone_rule doesn't. */
2192 /* Tell malloc where start of impure now is. */
2193 /* Also arrange for warnings when nearly out of space. */
2194 #ifndef SYSTEM_MALLOC
2196 /* On Windows, this was done before dumping, and that once suffices.
2197 Meanwhile, my_edata is not valid on Windows. */
2199 extern char my_edata
[];
2200 memory_warnings (my_edata
, malloc_warning
);
2202 #endif /* not WINDOWSNT */
2203 #if defined (HAVE_PTHREAD) && !defined SYNC_INPUT
2204 /* Pthread may call malloc before main, and then we will get an endless
2205 loop, because pthread_self (see alloc.c) calls malloc the first time
2206 it is called on some systems. */
2207 reset_malloc_hooks ();
2209 #endif /* not SYSTEM_MALLOC */
2210 #ifdef DOUG_LEA_MALLOC
2211 malloc_state_ptr
= malloc_get_state ();
2214 #ifdef USE_MMAP_FOR_BUFFERS
2217 unexec (SSDATA (filename
), !NILP (symfile
) ? SSDATA (symfile
) : 0);
2218 #ifdef USE_MMAP_FOR_BUFFERS
2221 #ifdef DOUG_LEA_MALLOC
2222 free (malloc_state_ptr
);
2227 return unbind_to (count
, Qnil
);
2230 #endif /* not CANNOT_DUMP */
2233 /* Recover from setlocale (LC_ALL, ""). */
2237 /* The Emacs Lisp reader needs LC_NUMERIC to be "C",
2238 so that numbers are read and printed properly for Emacs Lisp. */
2239 setlocale (LC_NUMERIC
, "C");
2242 /* Set system locale CATEGORY, with previous locale *PLOCALE, to
2245 synchronize_locale (int category
, Lisp_Object
*plocale
, Lisp_Object desired_locale
)
2247 if (! EQ (*plocale
, desired_locale
))
2249 *plocale
= desired_locale
;
2250 setlocale (category
, (STRINGP (desired_locale
)
2251 ? SSDATA (desired_locale
)
2256 /* Set system time locale to match Vsystem_time_locale, if possible. */
2258 synchronize_system_time_locale (void)
2260 synchronize_locale (LC_TIME
, &Vprevious_system_time_locale
,
2261 Vsystem_time_locale
);
2264 /* Set system messages locale to match Vsystem_messages_locale, if
2267 synchronize_system_messages_locale (void)
2270 synchronize_locale (LC_MESSAGES
, &Vprevious_system_messages_locale
,
2271 Vsystem_messages_locale
);
2274 #endif /* HAVE_SETLOCALE */
2281 decode_env_path (const char *evarname
, const char *defalt
)
2283 const char *path
, *p
;
2284 Lisp_Object lpath
, element
, tem
;
2286 /* It's okay to use getenv here, because this function is only used
2287 to initialize variables when Emacs starts up, and isn't called
2290 path
= getenv (evarname
);
2296 /* Ensure values from the environment use the proper directory separator. */
2299 char *path_copy
= alloca (strlen (path
) + 1);
2300 strcpy (path_copy
, path
);
2301 dostounix_filename (path_copy
);
2308 p
= strchr (path
, SEPCHAR
);
2310 p
= path
+ strlen (path
);
2311 element
= (p
- path
? make_string (path
, p
- path
)
2312 : build_string ("."));
2314 /* Add /: to the front of the name
2315 if it would otherwise be treated as magic. */
2316 tem
= Ffind_file_name_handler (element
, Qt
);
2318 /* However, if the handler says "I'm safe",
2319 don't bother adding /:. */
2323 prop
= Fget (tem
, intern ("safe-magic"));
2329 element
= concat2 (build_string ("/:"), element
);
2331 lpath
= Fcons (element
, lpath
);
2337 return Fnreverse (lpath
);
2340 DEFUN ("daemonp", Fdaemonp
, Sdaemonp
, 0, 0, 0,
2341 doc
: /* Return non-nil if the current emacs process is a daemon.
2342 If the daemon was given a name argument, return that name. */)
2347 return build_string (daemon_name
);
2354 DEFUN ("daemon-initialized", Fdaemon_initialized
, Sdaemon_initialized
, 0, 0, 0,
2355 doc
: /* Mark the Emacs daemon as being initialized.
2356 This finishes the daemonization process by doing the other half of detaching
2357 from the parent process and its tty file descriptors. */)
2364 error ("This function can only be called if emacs is run as a daemon");
2366 if (daemon_pipe
[1] < 0)
2367 error ("The daemon has already been initialized");
2369 if (NILP (Vafter_init_time
))
2370 error ("This function can only be called after loading the init files");
2372 /* Get rid of stdin, stdout and stderr. */
2373 nfd
= open ("/dev/null", O_RDWR
);
2375 err
|= dup2 (nfd
, 0) < 0;
2376 err
|= dup2 (nfd
, 1) < 0;
2377 err
|= dup2 (nfd
, 2) < 0;
2378 err
|= close (nfd
) != 0;
2380 /* Closing the pipe will notify the parent that it can exit.
2381 FIXME: In case some other process inherited the pipe, closing it here
2382 won't notify the parent because it's still open elsewhere, so we
2383 additionally send a byte, just to make sure the parent really exits.
2384 Instead, we should probably close the pipe in start-process and
2385 call-process to make sure the pipe is never inherited by
2387 err
|= write (daemon_pipe
[1], "\n", 1) < 0;
2388 err
|= close (daemon_pipe
[1]) != 0;
2389 /* Set it to an invalid value so we know we've already run this function. */
2390 daemon_pipe
[1] = -1;
2393 error ("I/O error during daemon initialization");
2398 syms_of_emacs (void)
2400 DEFSYM (Qfile_name_handler_alist
, "file-name-handler-alist");
2401 DEFSYM (Qrisky_local_variable
, "risky-local-variable");
2404 defsubr (&Sdump_emacs
);
2407 defsubr (&Skill_emacs
);
2409 defsubr (&Sinvocation_name
);
2410 defsubr (&Sinvocation_directory
);
2411 defsubr (&Sdaemonp
);
2412 defsubr (&Sdaemon_initialized
);
2414 DEFVAR_LISP ("command-line-args", Vcommand_line_args
,
2415 doc
: /* Args passed by shell to Emacs, as a list of strings.
2416 Many arguments are deleted from the list as they are processed. */);
2418 DEFVAR_LISP ("system-type", Vsystem_type
,
2419 doc
: /* The value is a symbol indicating the type of operating system you are using.
2421 `gnu' compiled for a GNU Hurd system.
2422 `gnu/linux' compiled for a GNU/Linux system.
2423 `gnu/kfreebsd' compiled for a GNU system with a FreeBSD kernel.
2424 `darwin' compiled for Darwin (GNU-Darwin, Mac OS X, ...).
2425 `ms-dos' compiled as an MS-DOS application.
2426 `windows-nt' compiled as a native W32 application.
2427 `cygwin' compiled using the Cygwin library.
2428 Anything else (in Emacs 24.1, the possibilities are: aix, berkeley-unix,
2429 hpux, irix, usg-unix-v) indicates some sort of Unix system. */);
2430 Vsystem_type
= intern_c_string (SYSTEM_TYPE
);
2431 /* The above values are from SYSTEM_TYPE in include files under src/s. */
2433 DEFVAR_LISP ("system-configuration", Vsystem_configuration
,
2434 doc
: /* Value is string indicating configuration Emacs was built for.
2435 On MS-Windows, the value reflects the OS flavor and version on which
2436 Emacs is running. */);
2437 Vsystem_configuration
= build_string (EMACS_CONFIGURATION
);
2439 DEFVAR_LISP ("system-configuration-options", Vsystem_configuration_options
,
2440 doc
: /* String containing the configuration options Emacs was built with. */);
2441 Vsystem_configuration_options
= build_string (EMACS_CONFIG_OPTIONS
);
2443 DEFVAR_BOOL ("noninteractive", noninteractive1
,
2444 doc
: /* Non-nil means Emacs is running without interactive terminal. */);
2446 DEFVAR_LISP ("kill-emacs-hook", Vkill_emacs_hook
,
2447 doc
: /* Hook to be run when `kill-emacs' is called.
2448 Since `kill-emacs' may be invoked when the terminal is disconnected (or
2449 in other similar situations), functions placed on this hook should not
2450 expect to be able to interact with the user. To ask for confirmation,
2451 see `kill-emacs-query-functions' instead.
2453 Before Emacs 24.1, the hook was not run in batch mode, i.e., if
2454 `noninteractive' was non-nil. */);
2455 Vkill_emacs_hook
= Qnil
;
2457 DEFVAR_LISP ("path-separator", Vpath_separator
,
2458 doc
: /* String containing the character that separates directories in
2459 search paths, such as PATH and other similar environment variables. */);
2462 Vpath_separator
= make_string (&c
, 1);
2465 DEFVAR_LISP ("invocation-name", Vinvocation_name
,
2466 doc
: /* The program name that was used to run Emacs.
2467 Any directory names are omitted. */);
2469 DEFVAR_LISP ("invocation-directory", Vinvocation_directory
,
2470 doc
: /* The directory in which the Emacs executable was found, to run it.
2471 The value is nil if that directory's name is not known. */);
2473 DEFVAR_LISP ("installation-directory", Vinstallation_directory
,
2474 doc
: /* A directory within which to look for the `lib-src' and `etc' directories.
2475 This is non-nil when we can't find those directories in their standard
2476 installed locations, but we can find them near where the Emacs executable
2478 Vinstallation_directory
= Qnil
;
2480 DEFVAR_LISP ("system-messages-locale", Vsystem_messages_locale
,
2481 doc
: /* System locale for messages. */);
2482 Vsystem_messages_locale
= Qnil
;
2484 DEFVAR_LISP ("previous-system-messages-locale",
2485 Vprevious_system_messages_locale
,
2486 doc
: /* Most recently used system locale for messages. */);
2487 Vprevious_system_messages_locale
= Qnil
;
2489 DEFVAR_LISP ("system-time-locale", Vsystem_time_locale
,
2490 doc
: /* System locale for time. */);
2491 Vsystem_time_locale
= Qnil
;
2493 DEFVAR_LISP ("previous-system-time-locale", Vprevious_system_time_locale
,
2494 doc
: /* Most recently used system locale for time. */);
2495 Vprevious_system_time_locale
= Qnil
;
2497 DEFVAR_LISP ("before-init-time", Vbefore_init_time
,
2498 doc
: /* Value of `current-time' before Emacs begins initialization. */);
2499 Vbefore_init_time
= Qnil
;
2501 DEFVAR_LISP ("after-init-time", Vafter_init_time
,
2502 doc
: /* Value of `current-time' after loading the init files.
2503 This is nil during initialization. */);
2504 Vafter_init_time
= Qnil
;
2506 DEFVAR_BOOL ("inhibit-x-resources", inhibit_x_resources
,
2507 doc
: /* If non-nil, X resources, Windows Registry settings, and NS defaults are not used. */);
2508 inhibit_x_resources
= 0;
2510 DEFVAR_LISP ("emacs-copyright", Vemacs_copyright
,
2511 doc
: /* Short copyright string for this version of Emacs. */);
2512 Vemacs_copyright
= build_string (emacs_copyright
);
2514 DEFVAR_LISP ("emacs-version", Vemacs_version
,
2515 doc
: /* Version numbers of this version of Emacs. */);
2516 Vemacs_version
= build_string (emacs_version
);
2518 DEFVAR_LISP ("dynamic-library-alist", Vdynamic_library_alist
,
2519 doc
: /* Alist of dynamic libraries vs external files implementing them.
2520 Each element is a list (LIBRARY FILE...), where the car is a symbol
2521 representing a supported external library, and the rest are strings giving
2522 alternate filenames for that library.
2524 Emacs tries to load the library from the files in the order they appear on
2525 the list; if none is loaded, the running session of Emacs won't have access
2528 Note that image types `pbm' and `xbm' do not need entries in this variable
2529 because they do not depend on external libraries and are always available.
2531 Also note that this is not a generic facility for accessing external
2532 libraries; only those already known by Emacs will be loaded. */);
2533 Vdynamic_library_alist
= Qnil
;
2534 Fput (intern_c_string ("dynamic-library-alist"), Qrisky_local_variable
, Qt
);
2536 /* Make sure IS_DAEMON starts up as false. */