1 /* Fully extensible Emacs, running on Unix, intended for GNU.
2 Copyright (C) 1985, 1986, 1987, 1993, 1994, 1995, 1997, 1998, 1999,
3 2001, 2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009,
4 2010 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>
37 #include <windows.h> /* just for w32.h */
39 #include "w32heap.h" /* for prototype of sbrk */
42 #ifdef NS_IMPL_GNUSTEP
43 /* At least under Debian, GSConfig is in a subdirectory. --Stef */
44 #include <GNUstepBase/GSConfig.h>
49 #include "intervals.h"
54 #include "blockinput.h"
55 #include "syssignal.h"
58 #include "termhooks.h"
76 #include <sys/resource.h>
79 #ifdef HAVE_PERSONALITY_LINUX32
80 #include <sys/personality.h>
90 #define setpgrp setpgid
94 /* If you change the following line, remember to update
95 msdos/mainmake.v2 which gleans the Emacs version from it! */
96 static const char emacs_copyright
[] = "Copyright (C) 2010 Free Software Foundation, Inc.";
97 static const char emacs_version
[] = "24.0.50";
99 /* Make these values available in GDB, which doesn't see macros. */
106 #ifndef USE_LISP_UNION_TYPE
107 int gdb_use_union
= 0;
109 int gdb_use_union
= 1;
111 EMACS_INT gdb_valbits
= VALBITS
;
112 EMACS_INT gdb_gctypebits
= GCTYPEBITS
;
113 #if defined (DATA_SEG_BITS) && ! defined (USE_LSB_TAG)
114 EMACS_INT gdb_data_seg_bits
= DATA_SEG_BITS
;
116 EMACS_INT gdb_data_seg_bits
= 0;
118 EMACS_INT PVEC_FLAG
= PSEUDOVECTOR_FLAG
;
119 EMACS_INT gdb_array_mark_flag
= ARRAY_MARK_FLAG
;
120 /* GDB might say "No enum type named pvec_type" if we don't have at
121 least one symbol with that type, and then xbacktrace could fail. */
122 enum pvec_type gdb_pvec_type
= PVEC_TYPE_MASK
;
124 /* Command line args from shell, as list of strings. */
125 Lisp_Object Vcommand_line_args
;
127 /* The name under which Emacs was invoked, with any leading directory
129 Lisp_Object Vinvocation_name
;
131 /* The directory name from which Emacs was invoked. */
132 Lisp_Object Vinvocation_directory
;
134 /* The directory name in which to find subdirs such as lisp and etc.
135 nil means get them only from PATH_LOADSEARCH. */
136 Lisp_Object Vinstallation_directory
;
138 /* The values of `current-time' before and after Emacs initialization. */
139 Lisp_Object Vbefore_init_time
, Vafter_init_time
;
141 /* Hook run by `kill-emacs' before it does really anything. */
142 Lisp_Object Vkill_emacs_hook
;
144 /* Empty lisp strings. To avoid having to build any others. */
145 Lisp_Object empty_unibyte_string
, empty_multibyte_string
;
147 /* Search path separator. */
148 Lisp_Object Vpath_separator
;
150 /* Set nonzero after Emacs has started up the first time.
151 Prevents reinitialization of the Lisp world and keymaps
152 on subsequent starts. */
155 #ifdef DOUG_LEA_MALLOC
156 /* Preserves a pointer to the memory allocated that copies that
157 static data inside glibc's malloc. */
158 void *malloc_state_ptr
;
159 /* From glibc, a routine that returns a copy of the malloc internal state. */
160 extern void *malloc_get_state (void);
161 /* From glibc, a routine that overwrites the malloc internal state. */
162 extern int malloc_set_state (void*);
163 /* Non-zero if the MALLOC_CHECK_ environment variable was set while
164 dumping. Used to work around a bug in glibc's malloc. */
165 int malloc_using_checking
;
168 /* Variable whose value is symbol giving operating system type. */
169 Lisp_Object Vsystem_type
;
171 /* Variable whose value is string giving configuration built for. */
172 Lisp_Object Vsystem_configuration
;
174 /* Variable whose value is string giving configuration options,
175 for use when reporting bugs. */
176 Lisp_Object Vsystem_configuration_options
;
178 Lisp_Object Qfile_name_handler_alist
;
180 /* Current and previous system locales for messages and time. */
181 Lisp_Object Vsystem_messages_locale
;
182 Lisp_Object Vprevious_system_messages_locale
;
183 Lisp_Object Vsystem_time_locale
;
184 Lisp_Object Vprevious_system_time_locale
;
186 /* Copyright and version info. The version number may be updated by
188 Lisp_Object Vemacs_copyright
, Vemacs_version
;
190 /* Alist of external libraries and files implementing them. */
191 Lisp_Object Vdynamic_library_alist
;
193 /* If non-zero, emacs should not attempt to use a window-specific code,
194 but instead should use the virtual terminal under which it was started. */
195 int inhibit_window_system
;
197 /* If nonzero, set Emacs to run at this priority. This is also used
198 in child_setup and sys_suspend to make sure subshells run at normal
199 priority; those functions have their own extern declaration. */
200 EMACS_INT emacs_priority
;
202 /* If non-zero, a filter or a sentinel is running. Tested to save the match
203 data on the first attempt to change it inside asynchronous code. */
204 int running_asynch_code
;
206 #if defined(HAVE_X_WINDOWS) || defined(HAVE_NS)
207 /* If non-zero, -d was specified, meaning we're using some window system. */
211 /* An address near the bottom of the stack.
212 Tells GC how to save a copy of the stack. */
215 /* The address where the heap starts (from the first sbrk (0) call). */
216 static void *my_heap_start
;
218 /* The gap between BSS end and heap start as far as we can tell. */
219 static unsigned long heap_bss_diff
;
221 /* If the gap between BSS end and heap start is larger than this
222 output a warning in dump-emacs. */
223 #define MAX_HEAP_BSS_DIFF (1024*1024)
225 /* Nonzero means running Emacs without interactive terminal. */
229 /* Value of Lisp variable `noninteractive'.
230 Normally same as C variable `noninteractive'
231 but nothing terrible happens if user sets this one. */
235 /* Nonzero means Emacs was run in --quick mode. */
236 int inhibit_x_resources
;
238 /* Name for the server started by the daemon.*/
239 static char *daemon_name
;
241 /* Pipe used to send exit notification to the daemon parent at
245 /* Save argv and argc. */
249 static void sort_args (int argc
, char **argv
);
250 void syms_of_emacs (void);
252 /* MSVC needs each string be shorter than 2048 bytes, so the usage
253 strings below are split to not overflow this limit. */
255 Usage: %s [OPTION-OR-FILENAME]...\n\
257 Run Emacs, the extensible, customizable, self-documenting real-time\n\
258 display editor. The recommended way to start Emacs for normal editing\n\
259 is with no options at all.\n\
261 Run M-x info RET m emacs RET m emacs invocation RET inside Emacs to\n\
262 read the main documentation for these command-line arguments.\n\
264 Initialization options:\n\
266 --batch do not do interactive display; implies -q\n\
267 --chdir DIR change to directory DIR\n\
268 --daemon start a server in the background\n\
269 --debug-init enable Emacs Lisp debugger for init file\n\
270 --display, -d DISPLAY use X server DISPLAY\n\
271 --no-desktop do not load a saved desktop\n\
272 --no-init-file, -q load neither ~/.emacs nor default.el\n\
273 --no-shared-memory, -nl do not use shared memory\n\
274 --no-site-file do not load site-start.el\n\
275 --no-splash do not display a splash screen on startup\n\
276 --no-window-system, -nw do not communicate with X, ignoring $DISPLAY\n\
277 --quick, -Q equivalent to -q --no-site-file --no-splash\n\
278 --script FILE run FILE as an Emacs Lisp script\n\
279 --terminal, -t DEVICE use DEVICE for terminal I/O\n\
280 --user, -u USER load ~USER/.emacs instead of your own\n\
286 FILE visit FILE using find-file\n\
287 +LINE go to line LINE in next FILE\n\
288 +LINE:COLUMN go to line LINE, column COLUMN, in next FILE\n\
289 --directory, -L DIR add DIR to variable load-path\n\
290 --eval EXPR evaluate Emacs Lisp expression EXPR\n\
291 --execute EXPR evaluate Emacs Lisp expression EXPR\n\
292 --file FILE visit FILE using find-file\n\
293 --find-file FILE visit FILE using find-file\n\
294 --funcall, -f FUNC call Emacs Lisp function FUNC with no arguments\n\
295 --insert FILE insert contents of FILE into current buffer\n\
296 --kill exit without asking for confirmation\n\
297 --load, -l FILE load Emacs Lisp FILE using the load function\n\
298 --visit FILE visit FILE using find-file\n\
304 --background-color, -bg COLOR window background color\n\
305 --basic-display, -D disable many display features;\n\
306 used for debugging Emacs\n\
307 --border-color, -bd COLOR main border color\n\
308 --border-width, -bw WIDTH width of main border\n\
309 --color, --color=MODE override color mode for character terminals;\n\
310 MODE defaults to `auto', and can also\n\
311 be `never', `auto', `always',\n\
312 or a mode name like `ansi8'\n\
313 --cursor-color, -cr COLOR color of the Emacs cursor indicating point\n\
314 --font, -fn FONT default font; must be fixed-width\n\
315 --foreground-color, -fg COLOR window foreground color\n\
316 --fullheight, -fh make the first frame high as the screen\n\
317 --fullscreen, -fs make first frame fullscreen\n\
318 --fullwidth, -fw make the first frame wide as the screen\n\
319 --maximized, -mm make the first frame maximized\n\
320 --geometry, -g GEOMETRY window geometry\n\
321 --no-bitmap-icon, -nbi do not use picture of gnu for Emacs icon\n\
322 --iconic start Emacs in iconified state\n\
323 --internal-border, -ib WIDTH width between text and main border\n\
324 --line-spacing, -lsp PIXELS additional space to put between lines\n\
325 --mouse-color, -ms COLOR mouse cursor color in Emacs window\n\
326 --name NAME title for initial Emacs frame\n\
327 --no-blinking-cursor, -nbc disable blinking cursor\n\
328 --reverse-video, -r, -rv switch foreground and background\n\
329 --title, -T TITLE title for initial Emacs frame\n\
330 --vertical-scroll-bars, -vb enable vertical scroll bars\n\
331 --xrm XRESOURCES set additional X resources\n\
332 --parent-id XID set parent window\n\
333 --help display this help and exit\n\
334 --version output version information and exit\n\
338 You can generally also specify long option names with a single -; for\n\
339 example, -batch as well as --batch. You can use any unambiguous\n\
340 abbreviation for a --option.\n\
342 Various environment variables and window system resources also affect\n\
343 Emacs' operation. See the main documentation.\n\
345 Report bugs to bug-gnu-emacs@gnu.org. First, please see the Bugs\n\
346 section of the Emacs manual or the file BUGS.\n"
349 /* Signal code for the fatal signal that was received. */
350 int fatal_error_code
;
352 /* Nonzero if handling a fatal error already. */
353 int fatal_error_in_progress
;
355 /* If non-null, call this function from fatal_error_signal before
356 committing suicide. */
358 void (*fatal_error_signal_hook
) (void);
360 #ifdef FORWARD_SIGNAL_TO_MAIN_THREAD
361 /* When compiled with GTK and running under Gnome,
362 multiple threads may be created. Keep track of our main
363 thread to make sure signals are delivered to it (see syssignal.h). */
365 pthread_t main_thread
;
369 /* Handle bus errors, invalid instruction, etc. */
371 fatal_error_signal (int sig
)
373 SIGNAL_THREAD_CHECK (sig
);
374 fatal_error_code
= sig
;
375 signal (sig
, SIG_DFL
);
377 TOTALLY_UNBLOCK_INPUT
;
379 /* If fatal error occurs in code below, avoid infinite recursion. */
380 if (! fatal_error_in_progress
)
382 fatal_error_in_progress
= 1;
384 if (sig
== SIGTERM
|| sig
== SIGHUP
|| sig
== SIGINT
)
385 Fkill_emacs (make_number (sig
));
387 shut_down_emacs (sig
, 0, Qnil
);
390 /* Signal the same code; this time it will really be fatal.
391 Remember that since we're in a signal handler, the signal we're
392 going to send is probably blocked, so we have to unblock it if we
393 want to really receive it. */
395 sigunblock (sigmask (fatal_error_code
));
398 if (fatal_error_signal_hook
)
399 fatal_error_signal_hook ();
401 kill (getpid (), fatal_error_code
);
406 /* Handler for SIGDANGER. */
408 memory_warning_signal (sig
)
411 signal (sig
, memory_warning_signal
);
412 SIGNAL_THREAD_CHECK (sig
);
414 malloc_warning ("Operating system warns that virtual memory is running low.\n");
416 /* It might be unsafe to call do_auto_save now. */
417 force_auto_save_soon ();
421 /* We define abort, rather than using it from the library,
422 so that GDB can return from a breakpoint here.
423 MSDOS has its own definition in msdos.c. */
425 #if ! defined (DOS_NT) && ! defined (NO_ABORT)
430 kill (getpid (), SIGABRT
);
431 /* This shouldn't be executed, but it prevents a warning. */
437 /* Code for dealing with Lisp access to the Unix command line. */
440 init_cmdargs (int argc
, char **argv
, int skip_args
)
443 Lisp_Object name
, dir
, tem
;
444 int count
= SPECPDL_INDEX ();
445 Lisp_Object raw_name
;
450 raw_name
= build_string (argv
[0]);
452 /* Add /: to the front of the name
453 if it would otherwise be treated as magic. */
454 tem
= Ffind_file_name_handler (raw_name
, Qt
);
456 raw_name
= concat2 (build_string ("/:"), raw_name
);
458 Vinvocation_name
= Ffile_name_nondirectory (raw_name
);
459 Vinvocation_directory
= Ffile_name_directory (raw_name
);
461 /* If we got no directory in argv[0], search PATH to find where
462 Emacs actually came from. */
463 if (NILP (Vinvocation_directory
))
466 int yes
= openp (Vexec_path
, Vinvocation_name
,
467 Vexec_suffixes
, &found
, make_number (X_OK
));
470 /* Add /: to the front of the name
471 if it would otherwise be treated as magic. */
472 tem
= Ffind_file_name_handler (found
, Qt
);
474 found
= concat2 (build_string ("/:"), found
);
475 Vinvocation_directory
= Ffile_name_directory (found
);
479 if (!NILP (Vinvocation_directory
)
480 && NILP (Ffile_name_absolute_p (Vinvocation_directory
)))
481 /* Emacs was started with relative path, like ./emacs.
483 Vinvocation_directory
= Fexpand_file_name (Vinvocation_directory
, Qnil
);
485 Vinstallation_directory
= Qnil
;
487 if (!NILP (Vinvocation_directory
))
489 dir
= Vinvocation_directory
;
490 name
= Fexpand_file_name (Vinvocation_name
, dir
);
493 Lisp_Object tem
, lib_src_exists
;
494 Lisp_Object etc_exists
, info_exists
;
496 /* See if dir contains subdirs for use by Emacs.
497 Check for the ones that would exist in a build directory,
498 not including lisp and info. */
499 tem
= Fexpand_file_name (build_string ("lib-src"), dir
);
500 lib_src_exists
= Ffile_exists_p (tem
);
503 /* MSDOS installations frequently remove lib-src, but we still
504 must set installation-directory, or else info won't find
505 its files (it uses the value of installation-directory). */
506 tem
= Fexpand_file_name (build_string ("info"), dir
);
507 info_exists
= Ffile_exists_p (tem
);
512 if (!NILP (lib_src_exists
) || !NILP (info_exists
))
514 tem
= Fexpand_file_name (build_string ("etc"), dir
);
515 etc_exists
= Ffile_exists_p (tem
);
516 if (!NILP (etc_exists
))
518 Vinstallation_directory
519 = Ffile_name_as_directory (dir
);
524 /* See if dir's parent contains those subdirs. */
525 tem
= Fexpand_file_name (build_string ("../lib-src"), dir
);
526 lib_src_exists
= Ffile_exists_p (tem
);
530 /* See the MSDOS commentary above. */
531 tem
= Fexpand_file_name (build_string ("../info"), dir
);
532 info_exists
= Ffile_exists_p (tem
);
537 if (!NILP (lib_src_exists
) || !NILP (info_exists
))
539 tem
= Fexpand_file_name (build_string ("../etc"), dir
);
540 etc_exists
= Ffile_exists_p (tem
);
541 if (!NILP (etc_exists
))
543 tem
= Fexpand_file_name (build_string (".."), dir
);
544 Vinstallation_directory
545 = Ffile_name_as_directory (tem
);
550 /* If the Emacs executable is actually a link,
551 next try the dir that the link points into. */
552 tem
= Ffile_symlink_p (name
);
555 name
= Fexpand_file_name (tem
, dir
);
556 dir
= Ffile_name_directory (name
);
563 Vcommand_line_args
= Qnil
;
565 for (i
= argc
- 1; i
>= 0; i
--)
567 if (i
== 0 || i
> skip_args
)
568 /* For the moment, we keep arguments as is in unibyte strings.
569 They are decoded in the function command-line after we know
570 locale-coding-system. */
572 = Fcons (make_unibyte_string (argv
[i
], strlen (argv
[i
])),
576 unbind_to (count
, Qnil
);
579 DEFUN ("invocation-name", Finvocation_name
, Sinvocation_name
, 0, 0, 0,
580 doc
: /* Return the program name that was used to run Emacs.
581 Any directory names are omitted. */)
584 return Fcopy_sequence (Vinvocation_name
);
587 DEFUN ("invocation-directory", Finvocation_directory
, Sinvocation_directory
,
589 doc
: /* Return the directory name in which the Emacs executable was located. */)
592 return Fcopy_sequence (Vinvocation_directory
);
597 /* A valid but unlikely value for the TZ environment value.
598 It is OK (though a bit slower) if the user actually chooses this value. */
599 static char dump_tz
[] = "UtC0";
602 #ifndef ORDINARY_LINK
603 /* We don't include crtbegin.o and crtend.o in the link,
604 so these functions and variables might be missed.
605 Provide dummy definitions to avoid error.
606 (We don't have any real constructors or destructors.) */
608 #ifndef GCC_CTORS_IN_LIBC
609 void __do_global_ctors (void)
611 void __do_global_ctors_aux (void)
613 void __do_global_dtors (void)
615 /* GNU/Linux has a bug in its library; avoid an error. */
617 char * __CTOR_LIST__
[2] = { (char *) (-1), 0 };
619 char * __DTOR_LIST__
[2] = { (char *) (-1), 0 };
620 #endif /* GCC_CTORS_IN_LIBC */
623 #endif /* __GNUC__ */
624 #endif /* ORDINARY_LINK */
626 /* Test whether the next argument in ARGV matches SSTR or a prefix of
627 LSTR (at least MINLEN characters). If so, then if VALPTR is non-null
628 (the argument is supposed to have a value) store in *VALPTR either
629 the next argument or the portion of this one after the equal sign.
630 ARGV is read starting at position *SKIPPTR; this index is advanced
631 by the number of arguments used.
633 Too bad we can't just use getopt for all of this, but we don't have
634 enough information to do it right. */
637 argmatch (char **argv
, int argc
, const char *sstr
, const char *lstr
, int minlen
, char **valptr
, int *skipptr
)
643 /* Don't access argv[argc]; give up in advance. */
644 if (argc
<= *skipptr
+ 1)
647 arg
= argv
[*skipptr
+1];
650 if (strcmp (arg
, sstr
) == 0)
654 *valptr
= argv
[*skipptr
+2];
661 arglen
= (valptr
!= NULL
&& (p
= strchr (arg
, '=')) != NULL
662 ? p
- arg
: strlen (arg
));
663 if (lstr
== 0 || arglen
< minlen
|| strncmp (arg
, lstr
, arglen
) != 0)
665 else if (valptr
== NULL
)
676 else if (argv
[*skipptr
+2] != NULL
)
678 *valptr
= argv
[*skipptr
+2];
688 #ifdef DOUG_LEA_MALLOC
690 /* malloc can be invoked even before main (e.g. by the dynamic
691 linker), so the dumped malloc state must be restored as early as
692 possible using this special hook. */
695 malloc_initialize_hook (void)
698 extern char **environ
;
703 if (!malloc_using_checking
)
704 /* Work around a bug in glibc's malloc. MALLOC_CHECK_ must be
705 ignored if the heap to be restored was constructed without
706 malloc checking. Can't use unsetenv, since that calls malloc. */
710 for (p
= environ
; p
&& *p
; p
++)
711 if (strncmp (*p
, "MALLOC_CHECK_=", 14) == 0)
720 malloc_set_state (malloc_state_ptr
);
721 #ifndef XMALLOC_OVERRUN_CHECK
722 free (malloc_state_ptr
);
727 if (my_heap_start
== 0)
728 my_heap_start
= sbrk (0);
729 malloc_using_checking
= getenv ("MALLOC_CHECK_") != NULL
;
733 void (*__malloc_initialize_hook
) (void) = malloc_initialize_hook
;
735 #endif /* DOUG_LEA_MALLOC */
740 main (int argc
, char **argv
)
745 char stack_bottom_variable
;
746 int do_initial_setlocale
;
748 #ifdef HAVE_SETRLIMIT
763 #if defined (USE_GTK) && defined (G_SLICE_ALWAYS_MALLOC)
764 /* This is used by the Cygwin build. */
765 setenv ("G_SLICE", "always-malloc", 1);
770 extern char my_endbss
[];
771 extern char *my_endbss_static
;
773 if (my_heap_start
== 0)
774 my_heap_start
= sbrk (0);
776 heap_bss_diff
= (char *)my_heap_start
- max (my_endbss
, my_endbss_static
);
779 #ifdef RUN_TIME_REMAP
781 run_time_remap (argv
[0]);
784 /* If using unexmacosx.c (set by s/darwin.h), we must do this. */
787 unexec_init_emacs_zone ();
790 sort_args (argc
, argv
);
792 while (argv
[argc
]) argc
++;
794 if (argmatch (argv
, argc
, "-version", "--version", 3, NULL
, &skip_args
))
796 const char *version
, *copyright
;
799 Lisp_Object tem
, tem2
;
800 tem
= Fsymbol_value (intern_c_string ("emacs-version"));
801 tem2
= Fsymbol_value (intern_c_string ("emacs-copyright"));
804 fprintf (stderr
, "Invalid value of `emacs-version'\n");
809 fprintf (stderr
, "Invalid value of `emacs-copyright'\n");
814 version
= SDATA (tem
);
815 copyright
= SDATA (tem2
);
820 version
= emacs_version
;
821 copyright
= emacs_copyright
;
823 printf ("GNU Emacs %s\n", version
);
824 printf ("%s\n", copyright
);
825 printf ("GNU Emacs comes with ABSOLUTELY NO WARRANTY.\n");
826 printf ("You may redistribute copies of Emacs\n");
827 printf ("under the terms of the GNU General Public License.\n");
828 printf ("For more information about these matters, ");
829 printf ("see the file named COPYING.\n");
833 if (argmatch (argv
, argc
, "-chdir", "--chdir", 4, &ch_to_dir
, &skip_args
))
834 if (chdir (ch_to_dir
) == -1)
836 fprintf (stderr
, "%s: Can't chdir to %s: %s\n",
837 argv
[0], ch_to_dir
, strerror (errno
));
842 #ifdef HAVE_PERSONALITY_LINUX32
844 && (strcmp (argv
[argc
-1], "dump") == 0
845 || strcmp (argv
[argc
-1], "bootstrap") == 0)
846 && ! getenv ("EMACS_HEAP_EXEC"))
848 static char heapexec
[] = "EMACS_HEAP_EXEC=true";
849 /* Set this so we only do this once. */
852 /* A flag to turn off address randomization which is introduced
853 in linux kernel shipped with fedora core 4 */
854 #define ADD_NO_RANDOMIZE 0x0040000
855 personality (PER_LINUX32
| ADD_NO_RANDOMIZE
);
856 #undef ADD_NO_RANDOMIZE
858 execvp (argv
[0], argv
);
860 /* If the exec fails, try to dump anyway. */
863 #endif /* HAVE_PERSONALITY_LINUX32 */
865 #if defined (HAVE_SETRLIMIT) && defined (RLIMIT_STACK)
866 /* Extend the stack space available.
867 Don't do that if dumping, since some systems (e.g. DJGPP)
868 might define a smaller stack limit at that time. */
871 && (!noninteractive
|| initialized
)
873 && !getrlimit (RLIMIT_STACK
, &rlim
))
876 extern size_t re_max_failures
;
877 /* Approximate the amount regex.c needs per unit of re_max_failures. */
878 int ratio
= 20 * sizeof (char *);
879 /* Then add 33% to cover the size of the smaller stacks that regex.c
880 successively allocates and discards, on its way to the maximum. */
882 /* Add in some extra to cover
883 what we're likely to use for other reasons. */
884 newlim
= re_max_failures
* ratio
+ 200000;
886 /* NetBSD (at least NetBSD 1.2G and former) has a bug in its
887 stack allocation routine for new process that the allocation
888 fails if stack limit is not on page boundary. So, round up the
889 new limit to page boundary. */
890 newlim
= (newlim
+ getpagesize () - 1) / getpagesize () * getpagesize();
892 if (newlim
> rlim
.rlim_max
)
894 newlim
= rlim
.rlim_max
;
895 /* Don't let regex.c overflow the stack we have. */
896 re_max_failures
= (newlim
- 200000) / ratio
;
898 if (rlim
.rlim_cur
< newlim
)
899 rlim
.rlim_cur
= newlim
;
901 setrlimit (RLIMIT_STACK
, &rlim
);
903 #endif /* HAVE_SETRLIMIT and RLIMIT_STACK */
905 /* Record (approximately) where the stack begins. */
906 stack_bottom
= &stack_bottom_variable
;
910 #ifndef SYSTEM_MALLOC
911 /* Arrange to get warning messages as memory fills up. */
912 memory_warnings (0, malloc_warning
);
914 /* Call malloc at least once, to run the initial __malloc_hook.
915 Also call realloc and free for consistency. */
916 free (realloc (malloc (4), 4));
919 /* Arrange to disable interrupt input inside malloc etc. */
920 uninterrupt_malloc ();
921 # endif /* not SYNC_INPUT */
922 #endif /* not SYSTEM_MALLOC */
924 #ifdef FORWARD_SIGNAL_TO_MAIN_THREAD
925 main_thread
= pthread_self ();
926 #endif /* FORWARD_SIGNAL_TO_MAIN_THREAD */
928 #if defined (MSDOS) || defined (WINDOWSNT)
929 /* We do all file input/output as binary files. When we need to translate
930 newlines, we do that manually. */
932 #endif /* MSDOS || WINDOWSNT */
935 if (!isatty (fileno (stdin
)))
936 setmode (fileno (stdin
), O_BINARY
);
937 if (!isatty (fileno (stdout
)))
940 setmode (fileno (stdout
), O_BINARY
);
944 /* Skip initial setlocale if LC_ALL is "C", as it's not needed in that case.
945 The build procedure uses this while dumping, to ensure that the
946 dumped Emacs does not have its system locale tables initialized,
947 as that might cause screwups when the dumped Emacs starts up. */
949 char *lc_all
= getenv ("LC_ALL");
950 do_initial_setlocale
= ! lc_all
|| strcmp (lc_all
, "C");
953 /* Set locale now, so that initial error messages are localized properly.
954 fixup_locale must wait until later, since it builds strings. */
955 if (do_initial_setlocale
)
956 setlocale (LC_ALL
, "");
958 inhibit_window_system
= 0;
960 /* Handle the -t switch, which specifies filename to use as terminal. */
964 if (argmatch (argv
, argc
, "-t", "--terminal", 4, &term
, &skip_args
))
969 result
= emacs_open (term
, O_RDWR
, 0);
972 char *errstring
= strerror (errno
);
973 fprintf (stderr
, "%s: %s: %s\n", argv
[0], term
, errstring
);
979 fprintf (stderr
, "%s: %s: not a tty\n", argv
[0], term
);
982 fprintf (stderr
, "Using %s\n", term
);
983 #ifdef HAVE_WINDOW_SYSTEM
984 inhibit_window_system
= 1; /* -t => -nw */
991 /* Command line option --no-windows is deprecated and thus not mentioned
992 in the manual and usage informations. */
993 if (argmatch (argv
, argc
, "-nw", "--no-window-system", 6, NULL
, &skip_args
)
994 || argmatch (argv
, argc
, "-nw", "--no-windows", 6, NULL
, &skip_args
))
995 inhibit_window_system
= 1;
997 /* Handle the -batch switch, which means don't do interactive display. */
999 if (argmatch (argv
, argc
, "-batch", "--batch", 5, NULL
, &skip_args
))
1002 Vundo_outer_limit
= Qnil
;
1004 if (argmatch (argv
, argc
, "-script", "--script", 3, &junk
, &skip_args
))
1006 noninteractive
= 1; /* Set batch mode. */
1007 /* Convert --script to -scriptload, un-skip it, and sort again
1008 so that it will be handled in proper sequence. */
1009 /* FIXME broken for --script=FILE - is that supposed to work? */
1010 argv
[skip_args
- 1] = "-scriptload";
1012 sort_args (argc
, argv
);
1015 /* Handle the --help option, which gives a usage message. */
1016 if (argmatch (argv
, argc
, "-help", "--help", 3, NULL
, &skip_args
))
1018 printf (USAGE1
, argv
[0], USAGE2
);
1024 if (argmatch (argv
, argc
, "-daemon", "--daemon", 5, NULL
, &skip_args
)
1025 || argmatch (argv
, argc
, "-daemon", "--daemon", 5, &dname_arg
, &skip_args
))
1030 /* Start as a daemon: fork a new child process which will run the
1031 rest of the initialization code, then exit.
1033 Detaching a daemon requires the following steps:
1037 - close the tty file-descriptors
1039 We only want to do the last 2 steps once the daemon is ready to
1040 serve requests, i.e. after loading .emacs (initialization).
1041 OTOH initialization may start subprocesses (e.g. ispell) and these
1042 should be run from the proper process (the one that will end up
1043 running as daemon) and with the proper "session id" in order for
1044 them to keep working after detaching, so fork and setsid need to be
1045 performed before initialization.
1047 We want to avoid exiting before the server socket is ready, so
1048 use a pipe for synchronization. The parent waits for the child
1049 to close its end of the pipe (using `daemon-initialized')
1051 if (pipe (daemon_pipe
) == -1)
1053 fprintf (stderr
, "Cannot pipe!\n");
1057 #ifndef NS_IMPL_COCOA
1059 #else /* NS_IMPL_COCOA */
1060 /* Under Cocoa we must do fork+exec as CoreFoundation lib fails in
1061 forked process: http://developer.apple.com/ReleaseNotes/
1062 CoreFoundation/CoreFoundation.html)
1063 We mark being in the exec'd process by a daemon name argument of
1064 form "--daemon=\nFD0,FD1\nNAME" where FD are the pipe file descriptors,
1065 NAME is the original daemon name, if any. */
1066 if (!dname_arg
|| !strchr (dname_arg
, '\n'))
1067 f
= fork (); /* in orig */
1069 f
= 0; /* in exec'd */
1070 #endif /* NS_IMPL_COCOA */
1076 /* Close unused writing end of the pipe. */
1077 close (daemon_pipe
[1]);
1079 /* Just wait for the child to close its end of the pipe. */
1082 retval
= read (daemon_pipe
[0], &buf
, 1);
1084 while (retval
== -1 && errno
== EINTR
);
1088 fprintf (stderr
, "Error reading status from child\n");
1091 else if (retval
== 0)
1093 fprintf (stderr
, "Error: server did not start correctly\n");
1097 close (daemon_pipe
[0]);
1102 fprintf (stderr
, "Cannot fork!\n");
1106 #ifdef NS_IMPL_COCOA
1108 /* In orig process, forked as child, OR in exec'd. */
1109 if (!dname_arg
|| !strchr (dname_arg
, '\n'))
1110 { /* In orig, child: now exec w/special daemon name. */
1113 if (dname_arg
&& strlen (dname_arg
) > 70)
1115 fprintf (stderr
, "daemon: child name too long\n");
1119 sprintf (fdStr
, "--daemon=\n%d,%d\n%s", daemon_pipe
[0],
1120 daemon_pipe
[1], dname_arg
? dname_arg
: "");
1121 argv
[skip_args
] = fdStr
;
1123 execv (argv
[0], argv
);
1124 fprintf (stderr
, "emacs daemon: exec failed: %d\n", errno
);
1128 /* In exec'd: parse special dname into pipe and name info. */
1129 if (!dname_arg
|| !strchr (dname_arg
, '\n')
1130 || strlen (dname_arg
) < 1 || strlen (dname_arg
) > 70)
1132 fprintf (stderr
, "emacs daemon: daemon name absent or too long\n");
1135 dname_arg2
[0] = '\0';
1136 sscanf (dname_arg
, "\n%d,%d\n%s", &(daemon_pipe
[0]), &(daemon_pipe
[1]),
1138 dname_arg
= strlen (dname_arg2
) ? dname_arg2
: NULL
;
1140 #endif /* NS_IMPL_COCOA */
1143 daemon_name
= xstrdup (dname_arg
);
1144 /* Close unused reading end of the pipe. */
1145 close (daemon_pipe
[0]);
1146 /* Make sure that the used end of the pipe is closed on exec, so
1147 that it is not accessible to programs started from .emacs. */
1148 fcntl (daemon_pipe
[1], F_SETFD
, FD_CLOEXEC
);
1154 fprintf (stderr
, "This platform does not support the -daemon flag.\n");
1159 if (! noninteractive
)
1161 #if defined (USG5) && defined (INTERRUPT_INPUT)
1164 #if defined (HAVE_GTK_AND_PTHREAD) && !defined (SYSTEM_MALLOC) && !defined (DOUG_LEA_MALLOC)
1166 extern void malloc_enable_thread (void);
1168 malloc_enable_thread ();
1175 /* Don't catch SIGHUP if dumping. */
1182 sigblock (sigmask (SIGHUP
));
1183 /* In --batch mode, don't catch SIGHUP if already ignored.
1184 That makes nohup work. */
1185 if (! noninteractive
1186 || signal (SIGHUP
, SIG_IGN
) != SIG_IGN
)
1187 signal (SIGHUP
, fatal_error_signal
);
1188 sigunblock (sigmask (SIGHUP
));
1193 ! noninteractive
|| initialized
1199 /* Don't catch these signals in batch mode if dumping.
1200 On some machines, this sets static data that would make
1201 signal fail to work right when the dumped Emacs is run. */
1202 signal (SIGQUIT
, fatal_error_signal
);
1203 signal (SIGILL
, fatal_error_signal
);
1204 signal (SIGTRAP
, fatal_error_signal
);
1206 add_user_signal (SIGUSR1
, "sigusr1");
1209 add_user_signal (SIGUSR2
, "sigusr2");
1212 signal (SIGABRT
, fatal_error_signal
);
1215 signal (SIGHWE
, fatal_error_signal
);
1218 signal (SIGPRE
, fatal_error_signal
);
1221 signal (SIGORE
, fatal_error_signal
);
1224 signal (SIGUME
, fatal_error_signal
);
1227 signal (SIGDLK
, fatal_error_signal
);
1230 signal (SIGCPULIM
, fatal_error_signal
);
1233 /* This is missing on some systems - OS/2, for example. */
1234 signal (SIGIOT
, fatal_error_signal
);
1237 signal (SIGEMT
, fatal_error_signal
);
1239 signal (SIGFPE
, fatal_error_signal
);
1241 signal (SIGBUS
, fatal_error_signal
);
1243 signal (SIGSEGV
, fatal_error_signal
);
1245 signal (SIGSYS
, fatal_error_signal
);
1247 /* May need special treatment on MS-Windows. See
1248 http://lists.gnu.org/archive/html/emacs-devel/2010-09/msg01062.html
1249 Please update the doc of kill-emacs, kill-emacs-hook, and
1250 NEWS if you change this.
1252 if (noninteractive
) signal (SIGINT
, fatal_error_signal
);
1253 signal (SIGTERM
, fatal_error_signal
);
1255 signal (SIGXCPU
, fatal_error_signal
);
1258 signal (SIGXFSZ
, fatal_error_signal
);
1259 #endif /* SIGXFSZ */
1262 /* This just means available memory is getting low. */
1263 signal (SIGDANGER
, memory_warning_signal
);
1267 /* 20 is SIGCHLD, 21 is SIGTTIN, 22 is SIGTTOU. */
1268 signal (SIGXCPU
, fatal_error_signal
);
1269 signal (SIGIOINT
, fatal_error_signal
);
1270 signal (SIGGRANT
, fatal_error_signal
);
1271 signal (SIGRETRACT
, fatal_error_signal
);
1272 signal (SIGSOUND
, fatal_error_signal
);
1273 signal (SIGMSG
, fatal_error_signal
);
1277 noninteractive1
= noninteractive
;
1279 /* Perform basic initializations (not merely interning symbols). */
1286 init_character_once ();
1287 init_charset_once ();
1288 init_coding_once ();
1289 init_syntax_once (); /* Create standard syntax table. */
1290 init_category_once (); /* Create standard category table. */
1291 /* Must be done before init_buffer. */
1292 init_casetab_once ();
1293 init_buffer_once (); /* Create buffer table and some buffers. */
1294 init_minibuf_once (); /* Create list of minibuffers. */
1295 /* Must precede init_window_once. */
1297 /* Call syms_of_xfaces before init_window_once because that
1298 function creates Vterminal_frame. Termcap frames now use
1299 faces, and the face implementation uses some symbols as
1302 /* XXX syms_of_keyboard uses some symbols in keymap.c. It would
1303 be better to arrange things not to have this dependency. */
1305 /* Call syms_of_keyboard before init_window_once because
1306 keyboard sets up symbols that include some face names that
1307 the X support will want to use. This can happen when
1308 CANNOT_DUMP is defined. */
1309 syms_of_keyboard ();
1311 /* Called before syms_of_fileio, because it sets up Qerror_condition. */
1314 /* Before syms_of_coding to initialize Vgc_cons_threshold. */
1316 /* Before syms_of_coding because it initializes Qcharsetp. */
1318 /* Before init_window_once, because it sets up the
1319 Vcoding_system_hash_table. */
1320 syms_of_coding (); /* This should be after syms_of_fileio. */
1322 init_window_once (); /* Init the window system. */
1323 #ifdef HAVE_WINDOW_SYSTEM
1324 init_fringe_once (); /* Swap bitmaps if necessary. */
1325 #endif /* HAVE_WINDOW_SYSTEM */
1330 if (do_initial_setlocale
)
1333 Vsystem_messages_locale
= Vprevious_system_messages_locale
;
1334 Vsystem_time_locale
= Vprevious_system_time_locale
;
1339 #ifdef CLASH_DETECTION
1343 running_asynch_code
= 0;
1346 = argmatch (argv
, argc
, "-nl", "--no-loadup", 6, NULL
, &skip_args
);
1349 ns_alloc_autorelease_pool();
1350 if (!noninteractive
)
1352 #ifdef NS_IMPL_COCOA
1353 if (skip_args
< argc
)
1355 if (!strncmp(argv
[skip_args
], "-psn", 4))
1358 chdir (getenv ("HOME"));
1360 else if (skip_args
+1 < argc
&& !strncmp(argv
[skip_args
+1], "-psn", 4))
1363 chdir (getenv ("HOME"));
1368 #endif /* HAVE_NS */
1370 #ifdef HAVE_X_WINDOWS
1371 /* Stupid kludge to catch command-line display spec. We can't
1372 handle this argument entirely in window system dependent code
1373 because we don't even know which window system dependent code
1374 to run until we've recognized this argument. */
1376 char *displayname
= 0;
1377 int count_before
= skip_args
;
1379 /* Skip any number of -d options, but only use the last one. */
1382 int count_before_this
= skip_args
;
1384 if (argmatch (argv
, argc
, "-d", "--display", 3, &displayname
, &skip_args
))
1386 else if (argmatch (argv
, argc
, "-display", 0, 3, &displayname
, &skip_args
))
1391 count_before
= count_before_this
;
1394 /* If we have the form --display=NAME,
1395 convert it into -d name.
1396 This requires inserting a new element into argv. */
1397 if (displayname
!= 0 && skip_args
- count_before
== 1)
1399 char **new = (char **) xmalloc (sizeof (char *) * (argc
+ 2));
1402 for (j
= 0; j
< count_before
+ 1; j
++)
1404 new[count_before
+ 1] = "-d";
1405 new[count_before
+ 2] = displayname
;
1406 for (j
= count_before
+ 2; j
<argc
; j
++)
1407 new[j
+ 1] = argv
[j
];
1411 /* Change --display to -d, when its arg is separate. */
1412 else if (displayname
!= 0 && skip_args
> count_before
1413 && argv
[count_before
+ 1][1] == '-')
1414 argv
[count_before
+ 1] = "-d";
1416 /* Don't actually discard this arg. */
1417 skip_args
= count_before
;
1421 /* argmatch must not be used after here,
1422 except when bulding temacs
1423 because the -d argument has not been skipped in skip_args. */
1426 /* Call early 'cause init_environment needs it. */
1428 /* Set defaults for several environment variables. */
1430 init_environment (argc
, argv
, skip_args
);
1437 /* Initialize environment from registry settings. */
1438 init_environment (argv
);
1439 init_ntproc (); /* must precede init_editfns. */
1449 /* Initialize and GC-protect Vinitial_environment and
1450 Vprocess_environment before set_initial_environment fills them
1453 syms_of_callproc ();
1454 /* egetenv is a pretty low-level facility, which may get called in
1455 many circumstances; it seems flimsy to put off initializing it
1456 until calling init_callproc. */
1457 set_initial_environment ();
1458 /* AIX crashes are reported in system versions 3.2.3 and 3.2.4
1459 if this is not done. Do it after set_global_environment so that we
1460 don't pollute Vglobal_environment. */
1461 /* Setting LANG here will defeat the startup locale processing... */
1466 init_buffer (); /* Init default directory of main buffer. */
1468 init_callproc_1 (); /* Must precede init_cmdargs and init_sys_modes. */
1469 init_cmdargs (argc
, argv
, skip_args
); /* Must precede init_lread. */
1473 /* Erase any pre-dump messages in the message log, to avoid confusion. */
1474 Lisp_Object old_log_max
;
1475 old_log_max
= Vmessage_log_max
;
1476 XSETFASTINT (Vmessage_log_max
, 0);
1477 message_dolog ("", 0, 1, 0);
1478 Vmessage_log_max
= old_log_max
;
1481 init_callproc (); /* Must follow init_cmdargs but not init_sys_modes. */
1484 /* Intern the names of all standard functions and variables;
1485 define standard keys. */
1489 /* The basic levels of Lisp must come first. Note that
1490 syms_of_data and some others have already been called. */
1496 syms_of_floatfns ();
1499 syms_of_bytecode ();
1501 syms_of_casefiddle ();
1503 syms_of_category ();
1505 syms_of_character ();
1512 #ifdef CLASH_DETECTION
1513 syms_of_filelock ();
1514 #endif /* CLASH_DETECTION */
1517 /* syms_of_keymap (); */
1525 syms_of_terminal ();
1531 syms_of_textprop ();
1532 syms_of_composite ();
1535 #endif /* WINDOWSNT */
1539 #ifdef HAVE_WINDOW_SYSTEM
1542 #endif /* HAVE_WINDOW_SYSTEM */
1543 #ifdef HAVE_X_WINDOWS
1548 syms_of_xsettings ();
1555 #endif /* HAVE_X_WINDOWS */
1566 syms_of_w32select ();
1569 #endif /* HAVE_NTGUI */
1575 syms_of_win16select();
1582 syms_of_nsselect ();
1584 #endif /* HAVE_NS */
1591 syms_of_dbusbind ();
1592 #endif /* HAVE_DBUS */
1596 #endif /* WINDOWSNT */
1598 keys_of_casefiddle ();
1601 keys_of_keyboard ();
1607 /* Initialization that must be done even if the global variable
1608 initialized is non zero. */
1610 globals_of_w32fns ();
1611 globals_of_w32menu ();
1612 globals_of_w32select ();
1613 #endif /* HAVE_NTGUI */
1618 init_editfns (); /* init_process uses Voperating_system_release. */
1619 init_process (); /* init_display uses add_keyboard_wait_descriptor. */
1620 init_keyboard (); /* This too must precede init_sys_modes. */
1621 if (!noninteractive
)
1622 init_display (); /* Determine terminal type. Calls init_sys_modes. */
1625 #ifdef HAVE_WINDOW_SYSTEM
1628 #endif /* HAVE_WINDOW_SYSTEM */
1640 /* Handle -l loadup, args passed by Makefile. */
1641 if (argmatch (argv
, argc
, "-l", "--load", 3, &file
, &skip_args
))
1642 Vtop_level
= Fcons (intern_c_string ("load"),
1643 Fcons (build_string (file
), Qnil
));
1644 /* Unless next switch is -nl, load "loadup.el" first thing. */
1646 Vtop_level
= Fcons (intern_c_string ("load"),
1647 Fcons (build_string ("loadup.el"), Qnil
));
1654 /* If the execution TZ happens to be the same as the dump TZ,
1655 change it to some other value and then change it back,
1656 to force the underlying implementation to reload the TZ info.
1657 This is needed on implementations that load TZ info from files,
1658 since the TZ file contents may differ between dump and execution. */
1659 char *tz
= getenv ("TZ");
1660 if (tz
&& !strcmp (tz
, dump_tz
))
1670 /* Set up for profiling. This is known to work on FreeBSD,
1671 GNU/Linux and MinGW. It might work on some other systems too.
1672 Give it a try and tell us if it works on your system. To compile
1673 for profiling, use the configure option --enable-profiling. */
1674 #if defined (__FreeBSD__) || defined (GNU_LINUX) || defined(__MINGW32__)
1678 extern void _mcleanup ();
1680 extern unsigned char etext
asm ("etext");
1684 #ifdef HAVE___EXECUTABLE_START
1685 /* This symbol is defined by GNU ld to the start of the text
1687 extern char __executable_start
[];
1689 extern void safe_bcopy ();
1693 #ifdef HAVE___EXECUTABLE_START
1694 monstartup (__executable_start
, &etext
);
1696 /* This uses safe_bcopy because that function comes first in the
1697 Emacs executable. It might be better to use something that
1698 gives the start of the text segment, but start_of_text is not
1699 defined on all systems now. */
1700 /* FIXME: Does not work on architectures with function
1702 monstartup (safe_bcopy
, &etext
);
1712 #ifdef LOCALTIME_CACHE
1713 /* Some versions of localtime have a bug. They cache the value of the time
1714 zone rather than looking it up every time. Since localtime() is
1715 called to bolt the undumping time into the undumped emacs, this
1716 results in localtime ignoring the TZ environment variable.
1717 This flushes the new TZ value into localtime. */
1719 #endif /* defined (LOCALTIME_CACHE) */
1721 /* Enter editor command loop. This never returns. */
1727 /* Sort the args so we can find the most important ones
1728 at the beginning of argv. */
1730 /* First, here's a table of all the standard options. */
1732 struct standard_args
1735 const char *longname
;
1740 const struct standard_args standard_args
[] =
1742 { "-version", "--version", 150, 0 },
1743 { "-chdir", "--chdir", 130, 1 },
1744 { "-t", "--terminal", 120, 1 },
1745 { "-nw", "--no-window-system", 110, 0 },
1746 { "-nw", "--no-windows", 110, 0 },
1747 { "-batch", "--batch", 100, 0 },
1748 { "-script", "--script", 100, 1 },
1749 { "-daemon", "--daemon", 99, 0 },
1750 { "-help", "--help", 90, 0 },
1751 { "-nl", "--no-loadup", 70, 0 },
1752 /* -d must come last before the options handled in startup.el. */
1753 { "-d", "--display", 60, 1 },
1754 { "-display", 0, 60, 1 },
1755 /* Now for the options handled in `command-line' (startup.el). */
1756 { "-Q", "--quick", 55, 0 },
1757 { "-quick", 0, 55, 0 },
1758 { "-q", "--no-init-file", 50, 0 },
1759 { "-no-init-file", 0, 50, 0 },
1760 { "-no-site-file", "--no-site-file", 40, 0 },
1761 { "-u", "--user", 30, 1 },
1762 { "-user", 0, 30, 1 },
1763 { "-debug-init", "--debug-init", 20, 0 },
1764 { "-iconic", "--iconic", 15, 0 },
1765 { "-D", "--basic-display", 12, 0},
1766 { "-basic-display", 0, 12, 0},
1767 { "-nbc", "--no-blinking-cursor", 12, 0 },
1768 /* Now for the options handled in `command-line-1' (startup.el). */
1769 { "-nbi", "--no-bitmap-icon", 10, 0 },
1770 { "-bg", "--background-color", 10, 1 },
1771 { "-background", 0, 10, 1 },
1772 { "-fg", "--foreground-color", 10, 1 },
1773 { "-foreground", 0, 10, 1 },
1774 { "-bd", "--border-color", 10, 1 },
1775 { "-bw", "--border-width", 10, 1 },
1776 { "-ib", "--internal-border", 10, 1 },
1777 { "-ms", "--mouse-color", 10, 1 },
1778 { "-cr", "--cursor-color", 10, 1 },
1779 { "-fn", "--font", 10, 1 },
1780 { "-font", 0, 10, 1 },
1781 { "-fs", "--fullscreen", 10, 0 },
1782 { "-fw", "--fullwidth", 10, 0 },
1783 { "-fh", "--fullheight", 10, 0 },
1784 { "-mm", "--maximized", 10, 0 },
1785 { "-g", "--geometry", 10, 1 },
1786 { "-geometry", 0, 10, 1 },
1787 { "-T", "--title", 10, 1 },
1788 { "-title", 0, 10, 1 },
1789 { "-name", "--name", 10, 1 },
1790 { "-xrm", "--xrm", 10, 1 },
1791 { "-parent-id", "--parent-id", 10, 1 },
1792 { "-r", "--reverse-video", 5, 0 },
1794 { "-reverse", 0, 5, 0 },
1795 { "-hb", "--horizontal-scroll-bars", 5, 0 },
1796 { "-vb", "--vertical-scroll-bars", 5, 0 },
1797 { "-color", "--color", 5, 0},
1798 { "-no-splash", "--no-splash", 3, 0 },
1799 { "-no-desktop", "--no-desktop", 3, 0 },
1801 { "-NSAutoLaunch", 0, 5, 1 },
1802 { "-NXAutoLaunch", 0, 5, 1 },
1803 { "-disable-font-backend", "--disable-font-backend", 65, 0 },
1804 { "-_NSMachLaunch", 0, 85, 1 },
1805 { "-MachLaunch", 0, 85, 1 },
1806 { "-macosx", 0, 85, 0 },
1807 { "-NSHost", 0, 85, 1 },
1809 /* These have the same priority as ordinary file name args,
1810 so they are not reordered with respect to those. */
1811 { "-L", "--directory", 0, 1 },
1812 { "-directory", 0, 0, 1 },
1813 { "-l", "--load", 0, 1 },
1814 { "-load", 0, 0, 1 },
1815 /* This has no longname, because using --scriptload confuses sort_args,
1816 because then the --script long option seems to match twice; ie
1817 you can't have a long option which is a prefix of another long
1818 option. In any case, this is entirely an internal option. */
1819 { "-scriptload", NULL
, 0, 1 },
1820 { "-f", "--funcall", 0, 1 },
1821 { "-funcall", 0, 0, 1 },
1822 { "-eval", "--eval", 0, 1 },
1823 { "-execute", "--execute", 0, 1 },
1824 { "-find-file", "--find-file", 0, 1 },
1825 { "-visit", "--visit", 0, 1 },
1826 { "-file", "--file", 0, 1 },
1827 { "-insert", "--insert", 0, 1 },
1829 { "-NXOpen", 0, 0, 1 },
1830 { "-NXOpenTemp", 0, 0, 1 },
1831 { "-NSOpen", 0, 0, 1 },
1832 { "-NSOpenTemp", 0, 0, 1 },
1833 { "-GSFilePath", 0, 0, 1 },
1835 /* This should be processed after ordinary file name args and the like. */
1836 { "-kill", "--kill", -10, 0 },
1839 /* Reorder the elements of ARGV (assumed to have ARGC elements)
1840 so that the highest priority ones come first.
1841 Do not change the order of elements of equal priority.
1842 If an option takes an argument, keep it and its argument together.
1844 If an option that takes no argument appears more
1845 than once, eliminate all but one copy of it. */
1848 sort_args (int argc
, char **argv
)
1850 char **new = (char **) xmalloc (sizeof (char *) * argc
);
1851 /* For each element of argv,
1852 the corresponding element of options is:
1853 0 for an option that takes no arguments,
1854 1 for an option that takes one argument, etc.
1855 -1 for an ordinary non-option argument. */
1856 int *options
= (int *) xmalloc (sizeof (int) * argc
);
1857 int *priority
= (int *) xmalloc (sizeof (int) * argc
);
1859 int incoming_used
= 1;
1863 /* Categorize all the options,
1864 and figure out which argv elts are option arguments. */
1865 for (from
= 1; from
< argc
; from
++)
1869 if (argv
[from
][0] == '-')
1874 /* If we have found "--", don't consider
1875 any more arguments as options. */
1876 if (argv
[from
][1] == '-' && argv
[from
][2] == 0)
1878 /* Leave the "--", and everything following it, at the end. */
1879 for (; from
< argc
; from
++)
1881 priority
[from
] = -100;
1887 /* Look for a match with a known old-fashioned option. */
1888 for (i
= 0; i
< sizeof (standard_args
) / sizeof (standard_args
[0]); i
++)
1889 if (!strcmp (argv
[from
], standard_args
[i
].name
))
1891 options
[from
] = standard_args
[i
].nargs
;
1892 priority
[from
] = standard_args
[i
].priority
;
1893 if (from
+ standard_args
[i
].nargs
>= argc
)
1894 fatal ("Option `%s' requires an argument\n", argv
[from
]);
1895 from
+= standard_args
[i
].nargs
;
1899 /* Look for a match with a known long option.
1900 MATCH is -1 if no match so far, -2 if two or more matches so far,
1901 >= 0 (the table index of the match) if just one match so far. */
1902 if (argv
[from
][1] == '-')
1905 thislen
= strlen (argv
[from
]);
1906 equals
= strchr (argv
[from
], '=');
1908 thislen
= equals
- argv
[from
];
1911 i
< sizeof (standard_args
) / sizeof (standard_args
[0]); i
++)
1912 if (standard_args
[i
].longname
1913 && !strncmp (argv
[from
], standard_args
[i
].longname
,
1922 /* If we found exactly one match, use that. */
1925 options
[from
] = standard_args
[match
].nargs
;
1926 priority
[from
] = standard_args
[match
].priority
;
1927 /* If --OPTION=VALUE syntax is used,
1928 this option uses just one argv element. */
1931 if (from
+ options
[from
] >= argc
)
1932 fatal ("Option `%s' requires an argument\n", argv
[from
]);
1933 from
+= options
[from
];
1935 /* FIXME When match < 0, shouldn't there be some error,
1936 or at least indication to the user that there was a
1943 /* Copy the arguments, in order of decreasing priority, to NEW. */
1945 while (incoming_used
< argc
)
1948 int best_priority
= -9999;
1950 /* Find the highest priority remaining option.
1951 If several have equal priority, take the first of them. */
1952 for (from
= 1; from
< argc
; from
++)
1954 if (argv
[from
] != 0 && priority
[from
] > best_priority
)
1956 best_priority
= priority
[from
];
1959 /* Skip option arguments--they are tied to the options. */
1960 if (options
[from
] > 0)
1961 from
+= options
[from
];
1967 /* Copy the highest priority remaining option, with its args, to NEW.
1968 Unless it is a duplicate of the previous one. */
1969 if (! (options
[best
] == 0
1970 && ! strcmp (new[to
- 1], argv
[best
])))
1972 new[to
++] = argv
[best
];
1973 for (i
= 0; i
< options
[best
]; i
++)
1974 new[to
++] = argv
[best
+ i
+ 1];
1977 incoming_used
+= 1 + (options
[best
] > 0 ? options
[best
] : 0);
1979 /* Clear out this option in ARGV. */
1981 for (i
= 0; i
< options
[best
]; i
++)
1982 argv
[best
+ i
+ 1] = 0;
1985 /* If duplicate options were deleted, fill up extra space with null ptrs. */
1989 memcpy (argv
, new, sizeof (char *) * argc
);
1996 DEFUN ("kill-emacs", Fkill_emacs
, Skill_emacs
, 0, 1, "P",
1997 doc
: /* Exit the Emacs job and kill it.
1998 If ARG is an integer, return ARG as the exit program code.
1999 If ARG is a string, stuff it as keyboard input.
2001 This function is called upon receipt of the signals SIGTERM
2002 or SIGHUP, and upon SIGINT in batch mode.
2004 The value of `kill-emacs-hook', if not void,
2005 is a list of functions (of no args),
2006 all of which are called before Emacs is actually killed. */)
2009 struct gcpro gcpro1
;
2016 if (!NILP (Vrun_hooks
))
2017 call1 (Vrun_hooks
, intern ("kill-emacs-hook"));
2021 shut_down_emacs (0, 0, STRINGP (arg
) ? arg
: Qnil
);
2023 /* If we have an auto-save list file,
2024 kill it because we are exiting Emacs deliberately (not crashing).
2025 Do it after shut_down_emacs, which does an auto-save. */
2026 if (STRINGP (Vauto_save_list_file_name
))
2027 unlink (SDATA (Vauto_save_list_file_name
));
2029 exit (INTEGERP (arg
) ? XINT (arg
) : EXIT_SUCCESS
);
2033 /* Perform an orderly shutdown of Emacs. Autosave any modified
2034 buffers, kill any child processes, clean up the terminal modes (if
2035 we're in the foreground), and other stuff like that. Don't perform
2036 any redisplay; this may be called when Emacs is shutting down in
2037 the background, or after its X connection has died.
2039 If SIG is a signal number, print a message for it.
2041 This is called by fatal signal handlers, X protocol error handlers,
2045 shut_down_emacs (int sig
, int no_x
, Lisp_Object stuff
)
2047 /* Prevent running of hooks from now on. */
2050 /* Don't update display from now on. */
2051 Vinhibit_redisplay
= Qt
;
2053 /* If we are controlling the terminal, reset terminal modes. */
2056 int pgrp
= EMACS_GETPGRP (0);
2059 if (EMACS_GET_TTY_PGRP (0, &tpgrp
) != -1
2062 reset_all_sys_modes ();
2063 if (sig
&& sig
!= SIGTERM
)
2064 fprintf (stderr
, "Fatal error (%d)", sig
);
2069 reset_all_sys_modes ();
2072 stuff_buffered_input (stuff
);
2074 inhibit_sentinels
= 1;
2075 kill_buffer_processes (Qnil
);
2076 Fdo_auto_save (Qt
, Qnil
);
2078 #ifdef CLASH_DETECTION
2079 unlock_all_files ();
2082 #if 0 /* This triggers a bug in XCloseDisplay and is not needed. */
2083 #ifdef HAVE_X_WINDOWS
2084 /* It's not safe to call intern here. Maybe we are crashing. */
2085 if (!noninteractive
&& SYMBOLP (Vinitial_window_system
)
2086 && SCHARS (SYMBOL_NAME (Vinitial_window_system
)) == 1
2087 && SREF (SYMBOL_NAME (Vinitial_window_system
), 0) == 'x'
2089 Fx_close_current_connection ();
2090 #endif /* HAVE_X_WINDOWS */
2094 /* There is a tendency for a SIGIO signal to arrive within exit,
2095 and cause a SIGHUP because the input descriptor is already closed. */
2097 signal (SIGIO
, SIG_IGN
);
2104 /* Do this only if terminating normally, we want glyph matrices
2105 etc. in a core dump. */
2106 if (sig
== 0 || sig
== SIGTERM
)
2108 check_glyph_memory ();
2109 check_message_stack ();
2117 ns_term_shutdown (sig
);
2125 /* FIXME: maybe this should go into header file, config.h seems the
2126 only one appropriate. */
2127 extern int unexec (const char *, const char *);
2129 DEFUN ("dump-emacs", Fdump_emacs
, Sdump_emacs
, 2, 2, 0,
2130 doc
: /* Dump current state of Emacs into executable file FILENAME.
2131 Take symbols from SYMFILE (presumably the file you executed to run Emacs).
2132 This is used in the file `loadup.el' when building Emacs.
2134 You must run Emacs in batch mode in order to dump it. */)
2135 (Lisp_Object filename
, Lisp_Object symfile
)
2137 extern char my_edata
[];
2140 int count
= SPECPDL_INDEX ();
2144 if (! noninteractive
)
2145 error ("Dumping Emacs works only in batch mode");
2148 if (heap_bss_diff
> MAX_HEAP_BSS_DIFF
)
2150 fprintf (stderr
, "**************************************************\n");
2151 fprintf (stderr
, "Warning: Your system has a gap between BSS and the\n");
2152 fprintf (stderr
, "heap (%lu bytes). This usually means that exec-shield\n",
2154 fprintf (stderr
, "or something similar is in effect. The dump may\n");
2155 fprintf (stderr
, "fail because of this. See the section about\n");
2156 fprintf (stderr
, "exec-shield in etc/PROBLEMS for more information.\n");
2157 fprintf (stderr
, "**************************************************\n");
2159 #endif /* GNU_LINUX */
2161 /* Bind `command-line-processed' to nil before dumping,
2162 so that the dumped Emacs will process its command line
2163 and set up to work with X windows if appropriate. */
2164 symbol
= intern ("command-line-processed");
2165 specbind (symbol
, Qnil
);
2167 CHECK_STRING (filename
);
2168 filename
= Fexpand_file_name (filename
, Qnil
);
2169 if (!NILP (symfile
))
2171 CHECK_STRING (symfile
);
2172 if (SCHARS (symfile
))
2173 symfile
= Fexpand_file_name (symfile
, Qnil
);
2177 Vpurify_flag
= Qnil
;
2180 set_time_zone_rule (dump_tz
);
2181 #ifndef LOCALTIME_CACHE
2182 /* Force a tz reload, since set_time_zone_rule doesn't. */
2188 /* Tell malloc where start of impure now is. */
2189 /* Also arrange for warnings when nearly out of space. */
2190 #ifndef SYSTEM_MALLOC
2192 /* On Windows, this was done before dumping, and that once suffices.
2193 Meanwhile, my_edata is not valid on Windows. */
2194 memory_warnings (my_edata
, malloc_warning
);
2195 #endif /* not WINDOWSNT */
2196 #if defined (HAVE_GTK_AND_PTHREAD) && !defined SYNC_INPUT
2197 /* Pthread may call malloc before main, and then we will get an endless
2198 loop, because pthread_self (see alloc.c) calls malloc the first time
2199 it is called on some systems. */
2200 reset_malloc_hooks ();
2202 #endif /* not SYSTEM_MALLOC */
2203 #ifdef DOUG_LEA_MALLOC
2204 malloc_state_ptr
= malloc_get_state ();
2207 #ifdef USE_MMAP_FOR_BUFFERS
2210 unexec (SDATA (filename
), !NILP (symfile
) ? SDATA (symfile
) : 0);
2211 #ifdef USE_MMAP_FOR_BUFFERS
2214 #ifdef DOUG_LEA_MALLOC
2215 free (malloc_state_ptr
);
2220 return unbind_to (count
, Qnil
);
2223 #endif /* not CANNOT_DUMP */
2226 /* Recover from setlocale (LC_ALL, ""). */
2230 /* The Emacs Lisp reader needs LC_NUMERIC to be "C",
2231 so that numbers are read and printed properly for Emacs Lisp. */
2232 setlocale (LC_NUMERIC
, "C");
2235 /* Set system locale CATEGORY, with previous locale *PLOCALE, to
2238 synchronize_locale (int category
, Lisp_Object
*plocale
, Lisp_Object desired_locale
)
2240 if (! EQ (*plocale
, desired_locale
))
2242 *plocale
= desired_locale
;
2243 setlocale (category
, (STRINGP (desired_locale
)
2244 ? (char *) SDATA (desired_locale
)
2249 /* Set system time locale to match Vsystem_time_locale, if possible. */
2251 synchronize_system_time_locale (void)
2253 synchronize_locale (LC_TIME
, &Vprevious_system_time_locale
,
2254 Vsystem_time_locale
);
2257 /* Set system messages locale to match Vsystem_messages_locale, if
2260 synchronize_system_messages_locale (void)
2263 synchronize_locale (LC_MESSAGES
, &Vprevious_system_messages_locale
,
2264 Vsystem_messages_locale
);
2267 #endif /* HAVE_SETLOCALE */
2274 decode_env_path (const char *evarname
, const char *defalt
)
2276 const char *path
, *p
;
2277 Lisp_Object lpath
, element
, tem
;
2279 /* It's okay to use getenv here, because this function is only used
2280 to initialize variables when Emacs starts up, and isn't called
2283 path
= getenv (evarname
);
2289 /* Ensure values from the environment use the proper directory separator. */
2292 char *path_copy
= alloca (strlen (path
) + 1);
2293 strcpy (path_copy
, path
);
2294 dostounix_filename (path_copy
);
2301 p
= strchr (path
, SEPCHAR
);
2303 p
= path
+ strlen (path
);
2304 element
= (p
- path
? make_string (path
, p
- path
)
2305 : build_string ("."));
2307 /* Add /: to the front of the name
2308 if it would otherwise be treated as magic. */
2309 tem
= Ffind_file_name_handler (element
, Qt
);
2311 /* However, if the handler says "I'm safe",
2312 don't bother adding /:. */
2316 prop
= Fget (tem
, intern ("safe-magic"));
2322 element
= concat2 (build_string ("/:"), element
);
2324 lpath
= Fcons (element
, lpath
);
2330 return Fnreverse (lpath
);
2333 DEFUN ("daemonp", Fdaemonp
, Sdaemonp
, 0, 0, 0,
2334 doc
: /* Return non-nil if the current emacs process is a daemon.
2335 If the daemon was given a name argument, return that name. */)
2340 return build_string (daemon_name
);
2347 DEFUN ("daemon-initialized", Fdaemon_initialized
, Sdaemon_initialized
, 0, 0, 0,
2348 doc
: /* Mark the Emacs daemon as being initialized.
2349 This finishes the daemonization process by doing the other half of detaching
2350 from the parent process and its tty file descriptors. */)
2356 error ("This function can only be called if emacs is run as a daemon");
2358 if (daemon_pipe
[1] < 0)
2359 error ("The daemon has already been initialized");
2361 if (NILP (Vafter_init_time
))
2362 error ("This function can only be called after loading the init files");
2364 /* Get rid of stdin, stdout and stderr. */
2365 nfd
= open ("/dev/null", O_RDWR
);
2371 /* Closing the pipe will notify the parent that it can exit.
2372 FIXME: In case some other process inherited the pipe, closing it here
2373 won't notify the parent because it's still open elsewhere, so we
2374 additionally send a byte, just to make sure the parent really exits.
2375 Instead, we should probably close the pipe in start-process and
2376 call-process to make sure the pipe is never inherited by
2378 write (daemon_pipe
[1], "\n", 1);
2379 close (daemon_pipe
[1]);
2380 /* Set it to an invalid value so we know we've already run this function. */
2381 daemon_pipe
[1] = -1;
2386 syms_of_emacs (void)
2388 Qfile_name_handler_alist
= intern_c_string ("file-name-handler-alist");
2389 staticpro (&Qfile_name_handler_alist
);
2392 defsubr (&Sdump_emacs
);
2395 defsubr (&Skill_emacs
);
2397 defsubr (&Sinvocation_name
);
2398 defsubr (&Sinvocation_directory
);
2399 defsubr (&Sdaemonp
);
2400 defsubr (&Sdaemon_initialized
);
2402 DEFVAR_LISP ("command-line-args", &Vcommand_line_args
,
2403 doc
: /* Args passed by shell to Emacs, as a list of strings.
2404 Many arguments are deleted from the list as they are processed. */);
2406 DEFVAR_LISP ("system-type", &Vsystem_type
,
2407 doc
: /* The value is a symbol indicating the type of operating system you are using.
2409 `gnu' compiled for a GNU Hurd system.
2410 `gnu/linux' compiled for a GNU/Linux system.
2411 `gnu/kfreebsd' compiled for a GNU system with a FreeBSD kernel.
2412 `darwin' compiled for Darwin (GNU-Darwin, Mac OS X, ...).
2413 `ms-dos' compiled as an MS-DOS application.
2414 `windows-nt' compiled as a native W32 application.
2415 `cygwin' compiled using the Cygwin library.
2416 Anything else (in Emacs 23.1, the possibilities are: aix, berkeley-unix,
2417 hpux, irix, lynxos 3.0.1, usg-unix-v) indicates some sort of Unix system. */);
2418 Vsystem_type
= intern_c_string (SYSTEM_TYPE
);
2420 DEFVAR_LISP ("system-configuration", &Vsystem_configuration
,
2421 doc
: /* Value is string indicating configuration Emacs was built for.
2422 On MS-Windows, the value reflects the OS flavor and version on which
2423 Emacs is running. */);
2424 Vsystem_configuration
= build_string (EMACS_CONFIGURATION
);
2426 DEFVAR_LISP ("system-configuration-options", &Vsystem_configuration_options
,
2427 doc
: /* String containing the configuration options Emacs was built with. */);
2428 Vsystem_configuration_options
= build_string (EMACS_CONFIG_OPTIONS
);
2430 DEFVAR_BOOL ("noninteractive", &noninteractive1
,
2431 doc
: /* Non-nil means Emacs is running without interactive terminal. */);
2433 DEFVAR_LISP ("kill-emacs-hook", &Vkill_emacs_hook
,
2434 doc
: /* Hook to be run when `kill-emacs' is called.
2435 Since `kill-emacs' may be invoked when the terminal is disconnected (or
2436 in other similar situations), functions placed on this hook should not
2437 expect to be able to interact with the user. To ask for confirmation,
2438 see `kill-emacs-query-functions' instead.
2440 Before Emacs 24.1, the hook was not run in batch mode, i.e., if
2441 `noninteractive' was non-nil. */);
2442 Vkill_emacs_hook
= Qnil
;
2444 DEFVAR_INT ("emacs-priority", &emacs_priority
,
2445 doc
: /* Priority for Emacs to run at.
2446 This value is effective only if set before Emacs is dumped,
2447 and only if the Emacs executable is installed with setuid to permit
2448 it to change priority. (Emacs sets its uid back to the real uid.)
2449 Currently, you need to define SET_EMACS_PRIORITY in `config.h'
2450 before you compile Emacs, to enable the code for this feature. */);
2453 DEFVAR_LISP ("path-separator", &Vpath_separator
,
2454 doc
: /* String containing the character that separates directories in
2455 search paths, such as PATH and other similar environment variables. */);
2458 Vpath_separator
= make_string (&c
, 1);
2461 DEFVAR_LISP ("invocation-name", &Vinvocation_name
,
2462 doc
: /* The program name that was used to run Emacs.
2463 Any directory names are omitted. */);
2465 DEFVAR_LISP ("invocation-directory", &Vinvocation_directory
,
2466 doc
: /* The directory in which the Emacs executable was found, to run it.
2467 The value is nil if that directory's name is not known. */);
2469 DEFVAR_LISP ("installation-directory", &Vinstallation_directory
,
2470 doc
: /* A directory within which to look for the `lib-src' and `etc' directories.
2471 This is non-nil when we can't find those directories in their standard
2472 installed locations, but we can find them near where the Emacs executable
2474 Vinstallation_directory
= Qnil
;
2476 DEFVAR_LISP ("system-messages-locale", &Vsystem_messages_locale
,
2477 doc
: /* System locale for messages. */);
2478 Vsystem_messages_locale
= Qnil
;
2480 DEFVAR_LISP ("previous-system-messages-locale",
2481 &Vprevious_system_messages_locale
,
2482 doc
: /* Most recently used system locale for messages. */);
2483 Vprevious_system_messages_locale
= Qnil
;
2485 DEFVAR_LISP ("system-time-locale", &Vsystem_time_locale
,
2486 doc
: /* System locale for time. */);
2487 Vsystem_time_locale
= Qnil
;
2489 DEFVAR_LISP ("previous-system-time-locale", &Vprevious_system_time_locale
,
2490 doc
: /* Most recently used system locale for time. */);
2491 Vprevious_system_time_locale
= Qnil
;
2493 DEFVAR_LISP ("before-init-time", &Vbefore_init_time
,
2494 doc
: /* Value of `current-time' before Emacs begins initialization. */);
2495 Vbefore_init_time
= Qnil
;
2497 DEFVAR_LISP ("after-init-time", &Vafter_init_time
,
2498 doc
: /* Value of `current-time' after loading the init files.
2499 This is nil during initialization. */);
2500 Vafter_init_time
= Qnil
;
2502 DEFVAR_BOOL ("inhibit-x-resources", &inhibit_x_resources
,
2503 doc
: /* If non-nil, X resources, Windows Registry settings, and NS defaults are not used. */);
2504 inhibit_x_resources
= 0;
2506 DEFVAR_LISP ("emacs-copyright", &Vemacs_copyright
,
2507 doc
: /* Short copyright string for this version of Emacs. */);
2508 Vemacs_copyright
= build_string (emacs_copyright
);
2510 DEFVAR_LISP ("emacs-version", &Vemacs_version
,
2511 doc
: /* Version numbers of this version of Emacs. */);
2512 Vemacs_version
= build_string (emacs_version
);
2514 DEFVAR_LISP ("dynamic-library-alist", &Vdynamic_library_alist
,
2515 doc
: /* Alist of dynamic libraries vs external files implementing them.
2516 Each element is a list (LIBRARY FILE...), where the car is a symbol
2517 representing a supported external library, and the rest are strings giving
2518 alternate filenames for that library.
2520 Emacs tries to load the library from the files in the order they appear on
2521 the list; if none is loaded, the running session of Emacs won't have access
2524 Note that image types `pbm' and `xbm' do not need entries in this variable
2525 because they do not depend on external libraries and are always available.
2527 Also note that this is not a generic facility for accessing external
2528 libraries; only those already known by Emacs will be loaded. */);
2529 Vdynamic_library_alist
= Qnil
;
2530 Fput (intern_c_string ("dynamic-library-alist"), Qrisky_local_variable
, Qt
);
2532 /* Make sure IS_DAEMON starts up as false. */
2536 /* arch-tag: 7bfd356a-c720-4612-8ab6-aa4222931c2e
2537 (do not change this comment) */