1 /* Fully extensible Emacs, running on Unix, intended for GNU.
3 Copyright (C) 1985-1987, 1993-1995, 1997-1999, 2001-2016 Free Software
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 (at
11 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/>. */
21 #define INLINE EXTERN_INLINE
28 #include <sys/types.h>
32 #include <close-stream.h>
39 #include <sys/socket.h>
45 #if defined WINDOWSNT || defined HAVE_NTGUI
46 #include "w32select.h"
48 #include "w32common.h"
56 #include <binary-io.h>
60 #ifdef HAVE_LIBSYSTEMD
61 # include <systemd/sd-daemon.h>
62 # include <sys/socket.h>
65 #ifdef HAVE_WINDOW_SYSTEM
67 #endif /* HAVE_WINDOW_SYSTEM */
69 #include "intervals.h"
70 #include "character.h"
75 #include "blockinput.h"
76 #include "syssignal.h"
79 #include "termhooks.h"
84 #include "composite.h"
85 #include "dispextern.h"
89 #include "sysselect.h"
93 #include "getpagesize.h"
96 #if (defined PROFILING \
97 && (defined __FreeBSD__ || defined GNU_LINUX || defined __MINGW32__))
98 # include <sys/gmon.h>
99 extern void moncontrol (int mode
);
102 #ifdef HAVE_SETLOCALE
110 #ifdef HAVE_SETRLIMIT
111 #include <sys/time.h>
112 #include <sys/resource.h>
115 #ifdef HAVE_PERSONALITY_ADDR_NO_RANDOMIZE
116 #include <sys/personality.h>
119 static const char emacs_version
[] = PACKAGE_VERSION
;
120 static const char emacs_copyright
[] = COPYRIGHT
;
121 static const char emacs_bugreport
[] = PACKAGE_BUGREPORT
;
123 /* Empty lisp strings. To avoid having to build any others. */
124 Lisp_Object empty_unibyte_string
, empty_multibyte_string
;
127 /* Cache for externally loaded libraries. */
128 Lisp_Object Vlibrary_cache
;
131 /* Set after Emacs has started up the first time.
132 Prevents reinitialization of the Lisp world and keymaps
133 on subsequent starts. */
136 /* Set to true if this instance of Emacs might dump. */
137 #ifndef DOUG_LEA_MALLOC
143 extern void unexec_init_emacs_zone (void);
146 /* If true, Emacs should not attempt to use a window-specific code,
147 but instead should use the virtual terminal under which it was started. */
148 bool inhibit_window_system
;
150 /* If true, a filter or a sentinel is running. Tested to save the match
151 data on the first attempt to change it inside asynchronous code. */
152 bool running_asynch_code
;
154 #if defined (HAVE_X_WINDOWS) || defined (HAVE_NS)
155 /* If true, -d was specified, meaning we're using some window system. */
159 /* An address near the bottom of the stack.
160 Tells GC how to save a copy of the stack. */
164 /* The gap between BSS end and heap start as far as we can tell. */
165 static uprintmax_t heap_bss_diff
;
168 /* To run as a daemon under Cocoa or Windows, we must do a fork+exec,
171 On Cocoa, CoreFoundation lib fails in forked process:
172 http://developer.apple.com/ReleaseNotes/
173 CoreFoundation/CoreFoundation.html)
175 On Windows, a Cygwin fork child cannot access the USER subsystem.
177 We mark being in the exec'd process by a daemon name argument of
178 form "--daemon=\nFD0,FD1\nNAME" where FD are the pipe file descriptors,
179 NAME is the original daemon name, if any. */
180 #if defined NS_IMPL_COCOA || (defined HAVE_NTGUI && defined CYGWIN)
181 # define DAEMON_MUST_EXEC
184 /* True means running Emacs without interactive terminal. */
187 /* True means remove site-lisp directories from load-path. */
190 /* True means put details like time stamps into builds. */
193 /* Name for the server started by the daemon.*/
194 static char *daemon_name
;
197 /* Pipe used to send exit notification to the daemon parent at
201 HANDLE w32_daemon_event
;
204 /* Save argv and argc. */
208 static void sort_args (int argc
, char **argv
);
209 static void syms_of_emacs (void);
211 /* C99 needs each string to be at most 4095 characters, and the usage
212 strings below are split to not overflow this limit. */
213 static char const *const usage_message
[] =
216 Run Emacs, the extensible, customizable, self-documenting real-time\n\
217 display editor. The recommended way to start Emacs for normal editing\n\
218 is with no options at all.\n\
220 Run M-x info RET m emacs RET m emacs invocation RET inside Emacs to\n\
221 read the main documentation for these command-line arguments.\n\
223 Initialization options:\n\
227 --batch do not do interactive display; implies -q\n\
228 --chdir DIR change to directory DIR\n\
229 --daemon start a server in the background\n\
230 --debug-init enable Emacs Lisp debugger for init file\n\
231 --display, -d DISPLAY use X server DISPLAY\n\
234 --no-build-details do not add build details such as time stamps\n\
235 --no-desktop do not load a saved desktop\n\
236 --no-init-file, -q load neither ~/.emacs nor default.el\n\
237 --no-loadup, -nl do not load loadup.el into bare Emacs\n\
238 --no-site-file do not load site-start.el\n\
239 --no-x-resources do not load X resources\n\
240 --no-site-lisp, -nsl do not add site-lisp directories to load-path\n\
241 --no-splash do not display a splash screen on startup\n\
242 --no-window-system, -nw do not communicate with X, ignoring $DISPLAY\n\
245 --quick, -Q equivalent to:\n\
246 -q --no-site-file --no-site-lisp --no-splash\n\
248 --script FILE run FILE as an Emacs Lisp script\n\
249 --terminal, -t DEVICE use DEVICE for terminal I/O\n\
250 --user, -u USER load ~USER/.emacs instead of your own\n\
256 FILE visit FILE using find-file\n\
257 +LINE go to line LINE in next FILE\n\
258 +LINE:COLUMN go to line LINE, column COLUMN, in next FILE\n\
259 --directory, -L DIR prepend DIR to load-path (with :DIR, append DIR)\n\
260 --eval EXPR evaluate Emacs Lisp expression EXPR\n\
261 --execute EXPR evaluate Emacs Lisp expression EXPR\n\
264 --file FILE visit FILE using find-file\n\
265 --find-file FILE visit FILE using find-file\n\
266 --funcall, -f FUNC call Emacs Lisp function FUNC with no arguments\n\
267 --insert FILE insert contents of FILE into current buffer\n\
268 --kill exit without asking for confirmation\n\
269 --load, -l FILE load Emacs Lisp FILE using the load function\n\
270 --visit FILE visit FILE using find-file\n\
276 --background-color, -bg COLOR window background color\n\
277 --basic-display, -D disable many display features;\n\
278 used for debugging Emacs\n\
279 --border-color, -bd COLOR main border color\n\
280 --border-width, -bw WIDTH width of main border\n\
283 --color, --color=MODE override color mode for character terminals;\n\
284 MODE defaults to `auto', and\n\
285 can also be `never', `always',\n\
286 or a mode name like `ansi8'\n\
287 --cursor-color, -cr COLOR color of the Emacs cursor indicating point\n\
288 --font, -fn FONT default font; must be fixed-width\n\
289 --foreground-color, -fg COLOR window foreground color\n\
292 --fullheight, -fh make the first frame high as the screen\n\
293 --fullscreen, -fs make the first frame fullscreen\n\
294 --fullwidth, -fw make the first frame wide as the screen\n\
295 --maximized, -mm make the first frame maximized\n\
296 --geometry, -g GEOMETRY window geometry\n\
299 --no-bitmap-icon, -nbi do not use picture of gnu for Emacs icon\n\
300 --iconic start Emacs in iconified state\n\
301 --internal-border, -ib WIDTH width between text and main border\n\
302 --line-spacing, -lsp PIXELS additional space to put between lines\n\
303 --mouse-color, -ms COLOR mouse cursor color in Emacs window\n\
304 --name NAME title for initial Emacs frame\n\
307 --no-blinking-cursor, -nbc disable blinking cursor\n\
308 --reverse-video, -r, -rv switch foreground and background\n\
309 --title, -T TITLE title for initial Emacs frame\n\
310 --vertical-scroll-bars, -vb enable vertical scroll bars\n\
311 --xrm XRESOURCES set additional X resources\n\
312 --parent-id XID set parent window\n\
313 --help display this help and exit\n\
314 --version output version information and exit\n\
318 You can generally also specify long option names with a single -; for\n\
319 example, -batch as well as --batch. You can use any unambiguous\n\
320 abbreviation for a --option.\n\
322 Various environment variables and window system resources also affect\n\
323 the operation of Emacs. See the main documentation.\n\
325 Report bugs to " PACKAGE_BUGREPORT
". First, please see the Bugs\n\
326 section of the Emacs manual or the file BUGS.\n"
330 /* True if handling a fatal error already. */
331 bool fatal_error_in_progress
;
334 /* NS autrelease pool, for memory management. */
335 static void *ns_pool
;
340 setlocale (int cat
, char const *locale
)
346 /* True if the current system locale uses UTF-8 encoding. */
352 mbstate_t mbs
= { 0 };
353 return mbrtowc (&wc
, "\xc4\x80", 2, &mbs
) == 2 && wc
== 0x100;
360 /* Report a fatal error due to signal SIG, output a backtrace of at
361 most BACKTRACE_LIMIT lines, and exit. */
363 terminate_due_to_signal (int sig
, int backtrace_limit
)
365 signal (sig
, SIG_DFL
);
367 if (attempt_orderly_shutdown_on_fatal_signal
)
369 /* If fatal error occurs in code below, avoid infinite recursion. */
370 if (! fatal_error_in_progress
)
372 fatal_error_in_progress
= 1;
374 totally_unblock_input ();
375 if (sig
== SIGTERM
|| sig
== SIGHUP
|| sig
== SIGINT
)
376 Fkill_emacs (make_number (sig
));
378 shut_down_emacs (sig
, Qnil
);
379 emacs_backtrace (backtrace_limit
);
383 /* Signal the same code; this time it will really be fatal.
384 Since we're in a signal handler, the signal is blocked, so we
385 have to unblock it if we want to really receive it. */
389 sigemptyset (&unblocked
);
390 sigaddset (&unblocked
, sig
);
391 pthread_sigmask (SIG_UNBLOCK
, &unblocked
, 0);
397 /* This shouldn't be executed, but it prevents a warning. */
401 /* Code for dealing with Lisp access to the Unix command line. */
404 init_cmdargs (int argc
, char **argv
, int skip_args
, char *original_pwd
)
407 Lisp_Object name
, dir
, handler
;
408 ptrdiff_t count
= SPECPDL_INDEX ();
409 Lisp_Object raw_name
;
410 AUTO_STRING (slash_colon
, "/:");
416 /* Must use argv[0] converted to UTF-8, as it begets many standard
417 file and directory names. */
419 char argv0
[MAX_UTF8_PATH
];
421 if (filename_from_ansi (argv
[0], argv0
) == 0)
422 raw_name
= build_unibyte_string (argv0
);
424 raw_name
= build_unibyte_string (argv
[0]);
427 raw_name
= build_unibyte_string (argv
[0]);
430 /* Add /: to the front of the name
431 if it would otherwise be treated as magic. */
432 handler
= Ffind_file_name_handler (raw_name
, Qt
);
433 if (! NILP (handler
))
434 raw_name
= concat2 (slash_colon
, raw_name
);
436 Vinvocation_name
= Ffile_name_nondirectory (raw_name
);
437 Vinvocation_directory
= Ffile_name_directory (raw_name
);
439 /* If we got no directory in argv[0], search PATH to find where
440 Emacs actually came from. */
441 if (NILP (Vinvocation_directory
))
444 int yes
= openp (Vexec_path
, Vinvocation_name
,
445 Vexec_suffixes
, &found
, make_number (X_OK
), false);
448 /* Add /: to the front of the name
449 if it would otherwise be treated as magic. */
450 handler
= Ffind_file_name_handler (found
, Qt
);
451 if (! NILP (handler
))
452 found
= concat2 (slash_colon
, found
);
453 Vinvocation_directory
= Ffile_name_directory (found
);
457 if (!NILP (Vinvocation_directory
)
458 && NILP (Ffile_name_absolute_p (Vinvocation_directory
)))
459 /* Emacs was started with relative path, like ./emacs.
463 original_pwd
? build_unibyte_string (original_pwd
) : Qnil
;
465 Vinvocation_directory
= Fexpand_file_name (Vinvocation_directory
, odir
);
468 Vinstallation_directory
= Qnil
;
470 if (!NILP (Vinvocation_directory
))
472 dir
= Vinvocation_directory
;
474 /* If we are running from the build directory, set DIR to the
475 src subdirectory of the Emacs tree, like on Posix
477 if (SBYTES (dir
) > sizeof ("/i386/") - 1
478 && 0 == strcmp (SSDATA (dir
) + SBYTES (dir
) - sizeof ("/i386/") + 1,
480 dir
= Fexpand_file_name (build_string ("../.."), dir
);
481 #else /* !WINDOWSNT */
483 name
= Fexpand_file_name (Vinvocation_name
, dir
);
486 Lisp_Object tem
, lib_src_exists
;
487 Lisp_Object etc_exists
, info_exists
;
489 /* See if dir contains subdirs for use by Emacs.
490 Check for the ones that would exist in a build directory,
491 not including lisp and info. */
492 tem
= Fexpand_file_name (build_string ("lib-src"), dir
);
493 lib_src_exists
= Ffile_exists_p (tem
);
496 /* MSDOS installations frequently remove lib-src, but we still
497 must set installation-directory, or else info won't find
498 its files (it uses the value of installation-directory). */
499 tem
= Fexpand_file_name (build_string ("info"), dir
);
500 info_exists
= Ffile_exists_p (tem
);
505 if (!NILP (lib_src_exists
) || !NILP (info_exists
))
507 tem
= Fexpand_file_name (build_string ("etc"), dir
);
508 etc_exists
= Ffile_exists_p (tem
);
509 if (!NILP (etc_exists
))
511 Vinstallation_directory
512 = Ffile_name_as_directory (dir
);
517 /* See if dir's parent contains those subdirs. */
518 tem
= Fexpand_file_name (build_string ("../lib-src"), dir
);
519 lib_src_exists
= Ffile_exists_p (tem
);
523 /* See the MSDOS commentary above. */
524 tem
= Fexpand_file_name (build_string ("../info"), dir
);
525 info_exists
= Ffile_exists_p (tem
);
530 if (!NILP (lib_src_exists
) || !NILP (info_exists
))
532 tem
= Fexpand_file_name (build_string ("../etc"), dir
);
533 etc_exists
= Ffile_exists_p (tem
);
534 if (!NILP (etc_exists
))
536 tem
= Fexpand_file_name (build_string (".."), dir
);
537 Vinstallation_directory
538 = Ffile_name_as_directory (tem
);
543 /* If the Emacs executable is actually a link,
544 next try the dir that the link points into. */
545 tem
= Ffile_symlink_p (name
);
548 name
= Fexpand_file_name (tem
, dir
);
549 dir
= Ffile_name_directory (name
);
556 Vcommand_line_args
= Qnil
;
558 for (i
= argc
- 1; i
>= 0; i
--)
560 if (i
== 0 || i
> skip_args
)
561 /* For the moment, we keep arguments as is in unibyte strings.
562 They are decoded in the function command-line after we know
563 locale-coding-system. */
565 = Fcons (build_unibyte_string (argv
[i
]), Vcommand_line_args
);
568 unbind_to (count
, Qnil
);
571 DEFUN ("invocation-name", Finvocation_name
, Sinvocation_name
, 0, 0, 0,
572 doc
: /* Return the program name that was used to run Emacs.
573 Any directory names are omitted. */)
576 return Fcopy_sequence (Vinvocation_name
);
579 DEFUN ("invocation-directory", Finvocation_directory
, Sinvocation_directory
,
581 doc
: /* Return the directory name in which the Emacs executable was located. */)
584 return Fcopy_sequence (Vinvocation_directory
);
588 /* Test whether the next argument in ARGV matches SSTR or a prefix of
589 LSTR (at least MINLEN characters). If so, then if VALPTR is non-null
590 (the argument is supposed to have a value) store in *VALPTR either
591 the next argument or the portion of this one after the equal sign.
592 ARGV is read starting at position *SKIPPTR; this index is advanced
593 by the number of arguments used.
595 Too bad we can't just use getopt for all of this, but we don't have
596 enough information to do it right. */
599 argmatch (char **argv
, int argc
, const char *sstr
, const char *lstr
,
600 int minlen
, char **valptr
, int *skipptr
)
606 /* Don't access argv[argc]; give up in advance. */
607 if (argc
<= *skipptr
+ 1)
610 arg
= argv
[*skipptr
+1];
613 if (strcmp (arg
, sstr
) == 0)
617 *valptr
= argv
[*skipptr
+2];
624 arglen
= (valptr
!= NULL
&& (p
= strchr (arg
, '=')) != NULL
625 ? p
- arg
: strlen (arg
));
626 if (lstr
== 0 || arglen
< minlen
|| strncmp (arg
, lstr
, arglen
) != 0)
628 else if (valptr
== NULL
)
639 else if (argv
[*skipptr
+2] != NULL
)
641 *valptr
= argv
[*skipptr
+2];
651 /* Close standard output and standard error, reporting any write
652 errors as best we can. This is intended for use with atexit. */
654 close_output_streams (void)
656 if (close_stream (stdout
) != 0)
658 emacs_perror ("Write error to standard output");
659 _exit (EXIT_FAILURE
);
662 if (close_stream (stderr
) != 0)
663 _exit (EXIT_FAILURE
);
668 main (int argc
, char **argv
)
671 char stack_bottom_variable
;
672 bool do_initial_setlocale
;
678 #ifdef DAEMON_MUST_EXEC
683 /* If we use --chdir, this records the original directory. */
684 char *original_pwd
= 0;
689 might_dump
= !initialized
;
695 char *heap_start
= my_heap_start ();
696 heap_bss_diff
= heap_start
- max (my_endbss
, my_endbss_static
);
700 #if defined WINDOWSNT || defined HAVE_NTGUI
701 /* Set global variables used to detect Windows version. Do this as
702 early as possible. (unexw32.c calls this function as well, but
703 the additional call here is harmless.) */
704 cache_system_info ();
706 /* On Windows 9X, we have to load UNICOWS.DLL as early as possible,
707 to have non-stub implementations of APIs we need to convert file
708 names between UTF-8 and the system's ANSI codepage. */
709 maybe_load_unicows_dll ();
711 /* This has to be done before module_init is called below, so that
712 the latter could use the thread ID of the main thread. */
713 w32_init_main_thread ();
716 #ifdef RUN_TIME_REMAP
718 run_time_remap (argv
[0]);
721 /* If using unexmacosx.c (set by s/darwin.h), we must do this. */
724 unexec_init_emacs_zone ();
727 init_standard_fds ();
728 atexit (close_output_streams
);
734 sort_args (argc
, argv
);
736 while (argv
[argc
]) argc
++;
738 if (argmatch (argv
, argc
, "-version", "--version", 3, NULL
, &skip_args
))
740 const char *version
, *copyright
;
743 Lisp_Object tem
, tem2
;
744 tem
= Fsymbol_value (intern_c_string ("emacs-version"));
745 tem2
= Fsymbol_value (intern_c_string ("emacs-copyright"));
748 fprintf (stderr
, "Invalid value of 'emacs-version'\n");
753 fprintf (stderr
, "Invalid value of 'emacs-copyright'\n");
758 version
= SSDATA (tem
);
759 copyright
= SSDATA (tem2
);
764 version
= emacs_version
;
765 copyright
= emacs_copyright
;
767 printf ("%s %s\n", PACKAGE_NAME
, version
);
768 printf ("%s\n", copyright
);
769 printf ("%s comes with ABSOLUTELY NO WARRANTY.\n", PACKAGE_NAME
);
770 printf ("You may redistribute copies of %s\n", PACKAGE_NAME
);
771 printf ("under the terms of the GNU General Public License.\n");
772 printf ("For more information about these matters, ");
773 printf ("see the file named COPYING.\n");
777 if (argmatch (argv
, argc
, "-chdir", "--chdir", 4, &ch_to_dir
, &skip_args
))
780 /* argv[] array is kept in its original ANSI codepage encoding,
781 we need to convert to UTF-8, for chdir to work. */
782 char newdir
[MAX_UTF8_PATH
];
784 filename_from_ansi (ch_to_dir
, newdir
);
787 original_pwd
= emacs_get_current_dir_name ();
788 if (chdir (ch_to_dir
) != 0)
790 fprintf (stderr
, "%s: Can't chdir to %s: %s\n",
791 argv
[0], ch_to_dir
, strerror (errno
));
796 dumping
= !initialized
&& (strcmp (argv
[argc
- 1], "dump") == 0
797 || strcmp (argv
[argc
- 1], "bootstrap") == 0);
799 #ifdef HAVE_PERSONALITY_ADDR_NO_RANDOMIZE
802 int pers
= personality (0xffffffff);
803 if (! (pers
& ADDR_NO_RANDOMIZE
)
804 && 0 <= personality (pers
| ADDR_NO_RANDOMIZE
))
806 /* Address randomization was enabled, but is now disabled.
807 Re-execute Emacs to get a clean slate. */
808 execvp (argv
[0], argv
);
810 /* If the exec fails, warn and then try without a clean slate. */
816 #if defined (HAVE_SETRLIMIT) && defined (RLIMIT_STACK) && !defined (CYGWIN)
817 /* Extend the stack space available. Don't do that if dumping,
818 since some systems (e.g. DJGPP) might define a smaller stack
819 limit at that time. And it's not needed on Cygwin, since emacs
820 is built with an 8MB stack. Moreover, the setrlimit call can
821 cause problems on Cygwin
822 (https://www.cygwin.com/ml/cygwin/2015-07/msg00096.html). */
824 if (getrlimit (RLIMIT_STACK
, &rlim
) == 0
825 && 0 <= rlim
.rlim_cur
&& rlim
.rlim_cur
<= LONG_MAX
)
827 long lim
= rlim
.rlim_cur
;
829 /* Approximate the amount regex.c needs per unit of
830 re_max_failures, then add 33% to cover the size of the
831 smaller stacks that regex.c successively allocates and
832 discards on its way to the maximum. */
833 int ratio
= 20 * sizeof (char *);
836 /* Extra space to cover what we're likely to use for other reasons. */
839 bool try_to_grow_stack
= true;
841 try_to_grow_stack
= !noninteractive
|| initialized
;
844 if (try_to_grow_stack
)
846 long newlim
= re_max_failures
* ratio
+ extra
;
848 /* Round the new limit to a page boundary; this is needed
849 for Darwin kernel 15.4.0 (see Bug#23622) and perhaps
850 other systems. Do not shrink the stack and do not exceed
851 rlim_max. Don't worry about exact values of
852 RLIM_INFINITY etc. since in practice when they are
853 nonnegative they are so large that the code does the
854 right thing anyway. */
855 long pagesize
= getpagesize ();
856 newlim
+= pagesize
- 1;
857 if (0 <= rlim
.rlim_max
&& rlim
.rlim_max
< newlim
)
858 newlim
= rlim
.rlim_max
;
859 newlim
-= newlim
% pagesize
;
861 if (pagesize
<= newlim
- lim
)
863 rlim
.rlim_cur
= newlim
;
864 if (setrlimit (RLIMIT_STACK
, &rlim
) == 0)
869 /* Don't let regex.c overflow the stack. */
870 re_max_failures
= lim
< extra
? 0 : min (lim
- extra
, SIZE_MAX
) / ratio
;
872 #endif /* HAVE_SETRLIMIT and RLIMIT_STACK and not CYGWIN */
874 /* Record (approximately) where the stack begins. */
875 stack_bottom
= &stack_bottom_variable
;
879 emacs_backtrace (-1);
881 #if !defined SYSTEM_MALLOC && !defined HYBRID_MALLOC
882 /* Arrange to get warning messages as memory fills up. */
883 memory_warnings (0, malloc_warning
);
885 /* Call malloc at least once, to run malloc_initialize_hook.
886 Also call realloc and free for consistency. */
887 free (realloc (malloc (4), 4));
889 #endif /* not SYSTEM_MALLOC and not HYBRID_MALLOC */
892 SET_BINARY (fileno (stdin
));
894 SET_BINARY (fileno (stdout
));
897 /* Skip initial setlocale if LC_ALL is "C", as it's not needed in that case.
898 The build procedure uses this while dumping, to ensure that the
899 dumped Emacs does not have its system locale tables initialized,
900 as that might cause screwups when the dumped Emacs starts up. */
902 char *lc_all
= getenv ("LC_ALL");
903 do_initial_setlocale
= ! lc_all
|| strcmp (lc_all
, "C");
906 /* Set locale now, so that initial error messages are localized properly.
907 fixup_locale must wait until later, since it builds strings. */
908 if (do_initial_setlocale
)
909 setlocale (LC_ALL
, "");
910 text_quoting_flag
= using_utf8 ();
912 inhibit_window_system
= 0;
914 /* Handle the -t switch, which specifies filename to use as terminal. */
918 if (argmatch (argv
, argc
, "-t", "--terminal", 4, &term
, &skip_args
))
920 emacs_close (STDIN_FILENO
);
921 emacs_close (STDOUT_FILENO
);
922 int result
= emacs_open (term
, O_RDWR
, 0);
923 if (result
!= STDIN_FILENO
924 || (fcntl (STDIN_FILENO
, F_DUPFD_CLOEXEC
, STDOUT_FILENO
)
927 char *errstring
= strerror (errno
);
928 fprintf (stderr
, "%s: %s: %s\n", argv
[0], term
, errstring
);
931 if (! isatty (STDIN_FILENO
))
933 fprintf (stderr
, "%s: %s: not a tty\n", argv
[0], term
);
936 fprintf (stderr
, "Using %s\n", term
);
937 #ifdef HAVE_WINDOW_SYSTEM
938 inhibit_window_system
= true; /* -t => -nw */
945 /* Command line option --no-windows is deprecated and thus not mentioned
946 in the manual and usage information. */
947 if (argmatch (argv
, argc
, "-nw", "--no-window-system", 6, NULL
, &skip_args
)
948 || argmatch (argv
, argc
, "-nw", "--no-windows", 6, NULL
, &skip_args
))
949 inhibit_window_system
= 1;
951 /* Handle the -batch switch, which means don't do interactive display. */
953 if (argmatch (argv
, argc
, "-batch", "--batch", 5, NULL
, &skip_args
))
956 Vundo_outer_limit
= Qnil
;
958 if (argmatch (argv
, argc
, "-script", "--script", 3, &junk
, &skip_args
))
960 noninteractive
= 1; /* Set batch mode. */
961 /* Convert --script to -scriptload, un-skip it, and sort again
962 so that it will be handled in proper sequence. */
963 /* FIXME broken for --script=FILE - is that supposed to work? */
964 argv
[skip_args
- 1] = (char *) "-scriptload";
966 sort_args (argc
, argv
);
969 /* Handle the --help option, which gives a usage message. */
970 if (argmatch (argv
, argc
, "-help", "--help", 3, NULL
, &skip_args
))
973 printf ("Usage: %s [OPTION-OR-FILENAME]...\n", argv
[0]);
974 for (i
= 0; i
< ARRAYELTS (usage_message
); i
++)
975 fputs (usage_message
[i
], stdout
);
980 /* Make sure IS_DAEMON starts up as false. */
983 w32_daemon_event
= NULL
;
989 if (argmatch (argv
, argc
, "-daemon", "--daemon", 5, NULL
, &skip_args
)
990 || argmatch (argv
, argc
, "-daemon", "--daemon", 5, &dname_arg
, &skip_args
))
995 /* Start as a daemon: fork a new child process which will run the
996 rest of the initialization code, then exit.
998 Detaching a daemon requires the following steps:
1002 - close the tty file-descriptors
1004 We only want to do the last 2 steps once the daemon is ready to
1005 serve requests, i.e. after loading .emacs (initialization).
1006 OTOH initialization may start subprocesses (e.g. ispell) and these
1007 should be run from the proper process (the one that will end up
1008 running as daemon) and with the proper "session id" in order for
1009 them to keep working after detaching, so fork and setsid need to be
1010 performed before initialization.
1012 We want to avoid exiting before the server socket is ready, so
1013 use a pipe for synchronization. The parent waits for the child
1014 to close its end of the pipe (using `daemon-initialized')
1016 if (emacs_pipe (daemon_pipe
) != 0)
1018 fprintf (stderr
, "Cannot pipe!\n");
1022 #ifdef HAVE_LIBSYSTEMD
1023 /* Read the number of sockets passed through by systemd. */
1024 int systemd_socket
= sd_listen_fds (1);
1026 if (systemd_socket
> 1)
1029 "Warning: systemd passed more than one socket to Emacs.\n"
1030 "Try 'Accept=false' in the Emacs socket unit file.\n"));
1031 else if (systemd_socket
== 1
1032 && (0 < sd_is_socket (SD_LISTEN_FDS_START
,
1033 AF_UNSPEC
, SOCK_STREAM
, 1)))
1034 sockfd
= SD_LISTEN_FDS_START
;
1035 #endif /* HAVE_LIBSYSTEMD */
1037 #ifndef DAEMON_MUST_EXEC
1039 fprintf (stderr
, "\nWarning: due to a long standing Gtk+ bug\nhttp://bugzilla.gnome.org/show_bug.cgi?id=85715\n\
1040 Emacs might crash when run in daemon mode and the X11 connection is unexpectedly lost.\n\
1041 Using an Emacs configured with --with-x-toolkit=lucid does not have this problem.\n");
1042 #endif /* USE_GTK */
1044 #else /* DAEMON_MUST_EXEC */
1045 if (!dname_arg
|| !strchr (dname_arg
, '\n'))
1046 f
= fork (); /* in orig */
1048 f
= 0; /* in exec'd */
1049 #endif /* !DAEMON_MUST_EXEC */
1055 /* Close unused writing end of the pipe. */
1056 emacs_close (daemon_pipe
[1]);
1058 /* Just wait for the child to close its end of the pipe. */
1061 retval
= read (daemon_pipe
[0], &buf
, 1);
1063 while (retval
== -1 && errno
== EINTR
);
1067 fprintf (stderr
, "Error reading status from child\n");
1070 else if (retval
== 0)
1072 fprintf (stderr
, "Error: server did not start correctly\n");
1076 emacs_close (daemon_pipe
[0]);
1081 emacs_perror ("fork");
1082 exit (EXIT_CANCELED
);
1085 #ifdef DAEMON_MUST_EXEC
1087 /* In orig process, forked as child, OR in exec'd. */
1088 if (!dname_arg
|| !strchr (dname_arg
, '\n'))
1089 { /* In orig, child: now exec w/special daemon name. */
1092 snprintf (fdStr
, sizeof fdStr
,
1093 "--daemon=\n%d,%d\n%s", daemon_pipe
[0],
1094 daemon_pipe
[1], dname_arg
? dname_arg
: "");
1096 if (! (0 <= fdStrlen
&& fdStrlen
< sizeof fdStr
))
1098 fprintf (stderr
, "daemon: child name too long\n");
1099 exit (EXIT_CANNOT_INVOKE
);
1102 argv
[skip_args
] = fdStr
;
1104 fcntl (daemon_pipe
[0], F_SETFD
, 0);
1105 fcntl (daemon_pipe
[1], F_SETFD
, 0);
1106 execvp (argv
[0], argv
);
1107 emacs_perror (argv
[0]);
1108 exit (errno
== ENOENT
? EXIT_ENOENT
: EXIT_CANNOT_INVOKE
);
1111 /* In exec'd: parse special dname into pipe and name info. */
1112 if (!dname_arg
|| !strchr (dname_arg
, '\n')
1113 || strlen (dname_arg
) < 1 || strlen (dname_arg
) > 70)
1115 fprintf (stderr
, "emacs daemon: daemon name absent or too long\n");
1116 exit (EXIT_CANNOT_INVOKE
);
1118 dname_arg2
[0] = '\0';
1119 sscanf (dname_arg
, "\n%d,%d\n%s", &(daemon_pipe
[0]), &(daemon_pipe
[1]),
1121 dname_arg
= *dname_arg2
? dname_arg2
: NULL
;
1122 fcntl (daemon_pipe
[1], F_SETFD
, FD_CLOEXEC
);
1124 #endif /* DAEMON_MUST_EXEC */
1126 /* Close unused reading end of the pipe. */
1127 emacs_close (daemon_pipe
[0]);
1130 #elif defined(WINDOWSNT)
1131 /* Indicate that we want daemon mode. */
1132 w32_daemon_event
= CreateEvent (NULL
, TRUE
, FALSE
, W32_DAEMON_EVENT
);
1133 if (w32_daemon_event
== NULL
)
1135 fprintf (stderr
, "Couldn't create MS-Windows event for daemon: %s\n",
1140 fprintf (stderr
, "This platform does not support the -daemon flag.\n");
1144 daemon_name
= xstrdup (dname_arg
);
1147 #if defined HAVE_PTHREAD && !defined SYSTEM_MALLOC \
1148 && !defined DOUG_LEA_MALLOC && !defined HYBRID_MALLOC
1149 # ifndef CANNOT_DUMP
1150 /* Do not make gmalloc thread-safe when creating bootstrap-emacs, as
1151 that causes an infinite recursive loop with FreeBSD. See
1152 Bug#14569. The part of this bug involving Cygwin is no longer
1153 relevant, now that Cygwin defines HYBRID_MALLOC. */
1154 if (!noninteractive
|| initialized
)
1156 malloc_enable_thread ();
1159 init_signals (dumping
);
1161 noninteractive1
= noninteractive
;
1163 /* Perform basic initializations (not merely interning symbols). */
1170 init_charset_once ();
1171 init_coding_once ();
1172 init_syntax_once (); /* Create standard syntax table. */
1173 init_category_once (); /* Create standard category table. */
1174 init_casetab_once (); /* Must be done before init_buffer_once. */
1175 init_buffer_once (); /* Create buffer table and some buffers. */
1176 init_minibuf_once (); /* Create list of minibuffers. */
1177 /* Must precede init_window_once. */
1179 /* Call syms_of_xfaces before init_window_once because that
1180 function creates Vterminal_frame. Termcap frames now use
1181 faces, and the face implementation uses some symbols as
1184 /* XXX syms_of_keyboard uses some symbols in keymap.c. It would
1185 be better to arrange things not to have this dependency. */
1187 /* Call syms_of_keyboard before init_window_once because
1188 keyboard sets up symbols that include some face names that
1189 the X support will want to use. This can happen when
1190 CANNOT_DUMP is defined. */
1191 syms_of_keyboard ();
1193 /* Called before syms_of_fileio, because it sets up Qerror_condition. */
1195 syms_of_fns (); /* Before syms_of_charset which uses hashtables. */
1197 /* Before syms_of_coding to initialize Vgc_cons_threshold. */
1199 /* May call Ffuncall and so GC, thus the latter should be initialized. */
1201 /* Before syms_of_coding because it initializes Qcharsetp. */
1203 /* Before init_window_once, because it sets up the
1204 Vcoding_system_hash_table. */
1205 syms_of_coding (); /* This should be after syms_of_fileio. */
1207 init_window_once (); /* Init the window system. */
1208 #ifdef HAVE_WINDOW_SYSTEM
1209 init_fringe_once (); /* Swap bitmaps if necessary. */
1210 #endif /* HAVE_WINDOW_SYSTEM */
1215 if (do_initial_setlocale
)
1218 Vsystem_messages_locale
= Vprevious_system_messages_locale
;
1219 Vsystem_time_locale
= Vprevious_system_time_locale
;
1224 running_asynch_code
= 0;
1228 = argmatch (argv
, argc
, "-nl", "--no-loadup", 6, NULL
, &skip_args
);
1231 = argmatch (argv
, argc
, "-nsl", "--no-site-lisp", 11, NULL
, &skip_args
);
1233 build_details
= ! argmatch (argv
, argc
, "-no-build-details",
1234 "--no-build-details", 7, NULL
, &skip_args
);
1237 ns_pool
= ns_alloc_autorelease_pool ();
1238 #ifdef NS_IMPL_GNUSTEP
1239 /* GNUstep stupidly resets our locale settings after we made them. */
1243 if (!noninteractive
)
1245 #ifdef NS_IMPL_COCOA
1246 /* Started from GUI? */
1247 /* FIXME: Do the right thing if getenv returns NULL, or if
1249 if (! inhibit_window_system
&& ! isatty (STDIN_FILENO
) && ! ch_to_dir
)
1250 chdir (getenv ("HOME"));
1251 if (skip_args
< argc
)
1253 if (!strncmp (argv
[skip_args
], "-psn", 4))
1256 if (! ch_to_dir
) chdir (getenv ("HOME"));
1258 else if (skip_args
+1 < argc
&& !strncmp (argv
[skip_args
+1], "-psn", 4))
1261 if (! ch_to_dir
) chdir (getenv ("HOME"));
1266 #endif /* HAVE_NS */
1268 #ifdef HAVE_X_WINDOWS
1269 /* Stupid kludge to catch command-line display spec. We can't
1270 handle this argument entirely in window system dependent code
1271 because we don't even know which window system dependent code
1272 to run until we've recognized this argument. */
1274 char *displayname
= 0;
1275 int count_before
= skip_args
;
1277 /* Skip any number of -d options, but only use the last one. */
1280 int count_before_this
= skip_args
;
1282 if (argmatch (argv
, argc
, "-d", "--display", 3, &displayname
, &skip_args
))
1284 else if (argmatch (argv
, argc
, "-display", 0, 3, &displayname
, &skip_args
))
1289 count_before
= count_before_this
;
1292 /* If we have the form --display=NAME,
1293 convert it into -d name.
1294 This requires inserting a new element into argv. */
1295 if (displayname
&& count_before
< skip_args
)
1297 if (skip_args
== count_before
+ 1)
1299 memmove (argv
+ count_before
+ 3, argv
+ count_before
+ 2,
1300 (argc
- (count_before
+ 2)) * sizeof *argv
);
1301 argv
[count_before
+ 2] = displayname
;
1304 argv
[count_before
+ 1] = (char *) "-d";
1309 if (argmatch (argv
, argc
, "-Q", "--quick", 3, NULL
, &skip_args
)
1310 || argmatch (argv
, argc
, "-quick", 0, 2, NULL
, &skip_args
))
1314 /* Don't actually discard this arg. */
1315 skip_args
= count_before
;
1317 #else /* !HAVE_X_WINDOWS */
1320 int count_before
= skip_args
;
1322 if (argmatch (argv
, argc
, "-Q", "--quick", 3, NULL
, &skip_args
)
1323 || argmatch (argv
, argc
, "-quick", 0, 2, NULL
, &skip_args
))
1326 skip_args
= count_before
;
1330 /* argmatch must not be used after here,
1331 except when building temacs
1332 because the -d argument has not been skipped in skip_args. */
1335 /* Call early 'cause init_environment needs it. */
1337 /* Set defaults for several environment variables. */
1339 init_environment (argc
, argv
, skip_args
);
1345 globals_of_kqueue ();
1348 #ifdef HAVE_GFILENOTIFY
1349 globals_of_gfilenotify ();
1354 #ifdef HAVE_W32NOTIFY
1355 globals_of_w32notify ();
1357 /* Initialize environment from registry settings. */
1358 init_environment (argv
);
1359 init_ntproc (dumping
); /* must precede init_editfns. */
1363 /* Initialize the locale from user defaults. */
1367 /* Initialize and GC-protect Vinitial_environment and
1368 Vprocess_environment before set_initial_environment fills them
1371 syms_of_callproc ();
1372 /* egetenv is a pretty low-level facility, which may get called in
1373 many circumstances; it seems flimsy to put off initializing it
1374 until calling init_callproc. Do not do it when dumping. */
1376 set_initial_environment ();
1378 /* AIX crashes are reported in system versions 3.2.3 and 3.2.4
1379 if this is not done. Do it after set_global_environment so that we
1380 don't pollute Vglobal_environment. */
1381 /* Setting LANG here will defeat the startup locale processing... */
1386 /* Init buffer storage and default directory of main buffer. */
1387 init_buffer (initialized
);
1389 init_callproc_1 (); /* Must precede init_cmdargs and init_sys_modes. */
1391 /* Must precede init_lread. */
1392 init_cmdargs (argc
, argv
, skip_args
, original_pwd
);
1396 /* Erase any pre-dump messages in the message log, to avoid confusion. */
1397 Lisp_Object old_log_max
;
1398 old_log_max
= Vmessage_log_max
;
1399 XSETFASTINT (Vmessage_log_max
, 0);
1400 message_dolog ("", 0, 1, 0);
1401 Vmessage_log_max
= old_log_max
;
1404 init_callproc (); /* Must follow init_cmdargs but not init_sys_modes. */
1408 /* Check to see if Emacs has been installed correctly. */
1409 check_windows_init_file ();
1412 /* Intern the names of all standard functions and variables;
1413 define standard keys. */
1417 /* The basic levels of Lisp must come first. Note that
1418 syms_of_data and some others have already been called. */
1423 syms_of_floatfns ();
1426 syms_of_bytecode ();
1428 syms_of_casefiddle ();
1430 syms_of_category ();
1432 syms_of_character ();
1439 syms_of_filelock ();
1442 /* syms_of_keymap (); */
1450 syms_of_terminal ();
1461 syms_of_textprop ();
1462 syms_of_composite ();
1465 #endif /* WINDOWSNT */
1472 #ifdef HAVE_WINDOW_SYSTEM
1475 #endif /* HAVE_WINDOW_SYSTEM */
1476 #ifdef HAVE_X_WINDOWS
1482 syms_of_xsettings ();
1489 #endif /* HAVE_X_WINDOWS */
1496 syms_of_decompress ();
1506 #endif /* HAVE_NTGUI */
1508 #if defined WINDOWSNT || defined HAVE_NTGUI
1509 syms_of_w32select ();
1516 syms_of_win16select ();
1523 syms_of_nsselect ();
1525 #endif /* HAVE_NS */
1531 #endif /* HAVE_INOTIFY */
1535 #endif /* HAVE_KQUEUE */
1537 #ifdef HAVE_GFILENOTIFY
1538 syms_of_gfilenotify ();
1539 #endif /* HAVE_GFILENOTIFY */
1542 syms_of_dbusbind ();
1543 #endif /* HAVE_DBUS */
1547 #ifdef HAVE_W32NOTIFY
1548 syms_of_w32notify ();
1549 #endif /* HAVE_W32NOTIFY */
1550 #endif /* WINDOWSNT */
1552 syms_of_profiler ();
1554 keys_of_casefiddle ();
1557 keys_of_keyboard ();
1563 /* Initialization that must be done even if the global variable
1564 initialized is non zero. */
1566 globals_of_w32font ();
1567 globals_of_w32fns ();
1568 globals_of_w32menu ();
1569 #endif /* HAVE_NTGUI */
1571 #if defined WINDOWSNT || defined HAVE_NTGUI
1572 globals_of_w32select ();
1578 /* This calls putenv and so must precede init_process_emacs. Also,
1579 it sets Voperating_system_release, which init_process_emacs uses. */
1580 init_editfns (dumping
);
1582 /* These two call putenv. */
1590 /* This can create a thread that may call getenv, so it must follow
1591 all calls to putenv and setenv. Also, this sets up
1592 add_keyboard_wait_descriptor, which init_display uses. */
1593 init_process_emacs (sockfd
);
1595 init_keyboard (); /* This too must precede init_sys_modes. */
1596 if (!noninteractive
)
1597 init_display (); /* Determine terminal type. Calls init_sys_modes. */
1600 init_crit (); /* w32notify.c needs this in batch mode. */
1601 #endif /* HAVE_W32NOTIFY */
1603 #ifdef HAVE_WINDOW_SYSTEM
1605 #endif /* HAVE_WINDOW_SYSTEM */
1613 /* Handle -l loadup, args passed by Makefile. */
1614 if (argmatch (argv
, argc
, "-l", "--load", 3, &file
, &skip_args
))
1617 char file_utf8
[MAX_UTF8_PATH
];
1619 if (filename_from_ansi (file
, file_utf8
) == 0)
1622 Vtop_level
= list2 (Qload
, build_unibyte_string (file
));
1624 /* Unless next switch is -nl, load "loadup.el" first thing. */
1626 Vtop_level
= list2 (Qload
, build_string ("loadup.el"));
1629 /* Set up for profiling. This is known to work on FreeBSD,
1630 GNU/Linux and MinGW. It might work on some other systems too.
1631 Give it a try and tell us if it works on your system. To compile
1632 for profiling, use the configure option --enable-profiling. */
1633 #if defined (__FreeBSD__) || defined (GNU_LINUX) || defined (__MINGW32__)
1638 extern unsigned char etext
asm ("etext");
1644 monstartup ((uintptr_t) __executable_start
, (uintptr_t) &etext
);
1653 /* Enter editor command loop. This never returns. */
1659 /* Sort the args so we can find the most important ones
1660 at the beginning of argv. */
1662 /* First, here's a table of all the standard options. */
1664 struct standard_args
1667 const char *longname
;
1672 static const struct standard_args standard_args
[] =
1674 { "-version", "--version", 150, 0 },
1675 { "-chdir", "--chdir", 130, 1 },
1676 { "-t", "--terminal", 120, 1 },
1677 { "-nw", "--no-window-system", 110, 0 },
1678 { "-nw", "--no-windows", 110, 0 },
1679 { "-batch", "--batch", 100, 0 },
1680 { "-script", "--script", 100, 1 },
1681 { "-daemon", "--daemon", 99, 0 },
1682 { "-help", "--help", 90, 0 },
1683 { "-nl", "--no-loadup", 70, 0 },
1684 { "-nsl", "--no-site-lisp", 65, 0 },
1685 { "-no-build-details", "--no-build-details", 63, 0 },
1686 /* -d must come last before the options handled in startup.el. */
1687 { "-d", "--display", 60, 1 },
1688 { "-display", 0, 60, 1 },
1689 /* Now for the options handled in `command-line' (startup.el). */
1690 /* (Note that to imply -nsl, -Q is partially handled here.) */
1691 { "-Q", "--quick", 55, 0 },
1692 { "-quick", 0, 55, 0 },
1693 { "-q", "--no-init-file", 50, 0 },
1694 { "-no-init-file", 0, 50, 0 },
1695 { "-no-x-resources", "--no-x-resources", 40, 0 },
1696 { "-no-site-file", "--no-site-file", 40, 0 },
1697 { "-u", "--user", 30, 1 },
1698 { "-user", 0, 30, 1 },
1699 { "-debug-init", "--debug-init", 20, 0 },
1700 { "-iconic", "--iconic", 15, 0 },
1701 { "-D", "--basic-display", 12, 0},
1702 { "-basic-display", 0, 12, 0},
1703 { "-nbc", "--no-blinking-cursor", 12, 0 },
1704 /* Now for the options handled in `command-line-1' (startup.el). */
1705 { "-nbi", "--no-bitmap-icon", 10, 0 },
1706 { "-bg", "--background-color", 10, 1 },
1707 { "-background", 0, 10, 1 },
1708 { "-fg", "--foreground-color", 10, 1 },
1709 { "-foreground", 0, 10, 1 },
1710 { "-bd", "--border-color", 10, 1 },
1711 { "-bw", "--border-width", 10, 1 },
1712 { "-ib", "--internal-border", 10, 1 },
1713 { "-ms", "--mouse-color", 10, 1 },
1714 { "-cr", "--cursor-color", 10, 1 },
1715 { "-fn", "--font", 10, 1 },
1716 { "-font", 0, 10, 1 },
1717 { "-fs", "--fullscreen", 10, 0 },
1718 { "-fw", "--fullwidth", 10, 0 },
1719 { "-fh", "--fullheight", 10, 0 },
1720 { "-mm", "--maximized", 10, 0 },
1721 { "-g", "--geometry", 10, 1 },
1722 { "-geometry", 0, 10, 1 },
1723 { "-T", "--title", 10, 1 },
1724 { "-title", 0, 10, 1 },
1725 { "-name", "--name", 10, 1 },
1726 { "-xrm", "--xrm", 10, 1 },
1727 { "-parent-id", "--parent-id", 10, 1 },
1728 { "-r", "--reverse-video", 5, 0 },
1730 { "-reverse", 0, 5, 0 },
1731 { "-hb", "--horizontal-scroll-bars", 5, 0 },
1732 { "-vb", "--vertical-scroll-bars", 5, 0 },
1733 { "-color", "--color", 5, 0},
1734 { "-no-splash", "--no-splash", 3, 0 },
1735 { "-no-desktop", "--no-desktop", 3, 0 },
1737 { "-NSAutoLaunch", 0, 5, 1 },
1738 { "-NXAutoLaunch", 0, 5, 1 },
1739 { "-_NSMachLaunch", 0, 85, 1 },
1740 { "-MachLaunch", 0, 85, 1 },
1741 { "-macosx", 0, 85, 0 },
1742 { "-NSHost", 0, 85, 1 },
1744 /* These have the same priority as ordinary file name args,
1745 so they are not reordered with respect to those. */
1746 { "-L", "--directory", 0, 1 },
1747 { "-directory", 0, 0, 1 },
1748 { "-l", "--load", 0, 1 },
1749 { "-load", 0, 0, 1 },
1750 /* This has no longname, because using --scriptload confuses sort_args,
1751 because then the --script long option seems to match twice; ie
1752 you can't have a long option which is a prefix of another long
1753 option. In any case, this is entirely an internal option. */
1754 { "-scriptload", NULL
, 0, 1 },
1755 { "-f", "--funcall", 0, 1 },
1756 { "-funcall", 0, 0, 1 },
1757 { "-eval", "--eval", 0, 1 },
1758 { "-execute", "--execute", 0, 1 },
1759 { "-find-file", "--find-file", 0, 1 },
1760 { "-visit", "--visit", 0, 1 },
1761 { "-file", "--file", 0, 1 },
1762 { "-insert", "--insert", 0, 1 },
1764 { "-NXOpen", 0, 0, 1 },
1765 { "-NXOpenTemp", 0, 0, 1 },
1766 { "-NSOpen", 0, 0, 1 },
1767 { "-NSOpenTemp", 0, 0, 1 },
1768 { "-GSFilePath", 0, 0, 1 },
1770 /* This should be processed after ordinary file name args and the like. */
1771 { "-kill", "--kill", -10, 0 },
1774 /* Reorder the elements of ARGV (assumed to have ARGC elements)
1775 so that the highest priority ones come first.
1776 Do not change the order of elements of equal priority.
1777 If an option takes an argument, keep it and its argument together.
1779 If an option that takes no argument appears more
1780 than once, eliminate all but one copy of it. */
1783 sort_args (int argc
, char **argv
)
1785 char **new = xmalloc (argc
* sizeof *new);
1786 /* For each element of argv,
1787 the corresponding element of options is:
1788 0 for an option that takes no arguments,
1789 1 for an option that takes one argument, etc.
1790 -1 for an ordinary non-option argument. */
1791 int *options
= xnmalloc (argc
, sizeof *options
);
1792 int *priority
= xnmalloc (argc
, sizeof *priority
);
1794 int incoming_used
= 1;
1798 /* Categorize all the options,
1799 and figure out which argv elts are option arguments. */
1800 for (from
= 1; from
< argc
; from
++)
1804 if (argv
[from
][0] == '-')
1808 /* If we have found "--", don't consider
1809 any more arguments as options. */
1810 if (argv
[from
][1] == '-' && argv
[from
][2] == 0)
1812 /* Leave the "--", and everything following it, at the end. */
1813 for (; from
< argc
; from
++)
1815 priority
[from
] = -100;
1821 /* Look for a match with a known old-fashioned option. */
1822 for (i
= 0; i
< ARRAYELTS (standard_args
); i
++)
1823 if (!strcmp (argv
[from
], standard_args
[i
].name
))
1825 options
[from
] = standard_args
[i
].nargs
;
1826 priority
[from
] = standard_args
[i
].priority
;
1827 if (from
+ standard_args
[i
].nargs
>= argc
)
1828 fatal ("Option '%s' requires an argument\n", argv
[from
]);
1829 from
+= standard_args
[i
].nargs
;
1833 /* Look for a match with a known long option.
1834 MATCH is -1 if no match so far, -2 if two or more matches so far,
1835 >= 0 (the table index of the match) if just one match so far. */
1836 if (argv
[from
][1] == '-')
1838 char const *equals
= strchr (argv
[from
], '=');
1840 equals
? equals
- argv
[from
] : strlen (argv
[from
]);
1844 for (i
= 0; i
< ARRAYELTS (standard_args
); i
++)
1845 if (standard_args
[i
].longname
1846 && !strncmp (argv
[from
], standard_args
[i
].longname
,
1855 /* If we found exactly one match, use that. */
1858 options
[from
] = standard_args
[match
].nargs
;
1859 priority
[from
] = standard_args
[match
].priority
;
1860 /* If --OPTION=VALUE syntax is used,
1861 this option uses just one argv element. */
1864 if (from
+ options
[from
] >= argc
)
1865 fatal ("Option '%s' requires an argument\n", argv
[from
]);
1866 from
+= options
[from
];
1868 /* FIXME When match < 0, shouldn't there be some error,
1869 or at least indication to the user that there was a
1876 /* Copy the arguments, in order of decreasing priority, to NEW. */
1878 while (incoming_used
< argc
)
1881 int best_priority
= -9999;
1883 /* Find the highest priority remaining option.
1884 If several have equal priority, take the first of them. */
1885 for (from
= 1; from
< argc
; from
++)
1887 if (argv
[from
] != 0 && priority
[from
] > best_priority
)
1889 best_priority
= priority
[from
];
1892 /* Skip option arguments--they are tied to the options. */
1893 if (options
[from
] > 0)
1894 from
+= options
[from
];
1900 /* Copy the highest priority remaining option, with its args, to NEW.
1901 Unless it is a duplicate of the previous one. */
1902 if (! (options
[best
] == 0
1903 && ! strcmp (new[to
- 1], argv
[best
])))
1905 new[to
++] = argv
[best
];
1906 for (i
= 0; i
< options
[best
]; i
++)
1907 new[to
++] = argv
[best
+ i
+ 1];
1910 incoming_used
+= 1 + (options
[best
] > 0 ? options
[best
] : 0);
1912 /* Clear out this option in ARGV. */
1914 for (i
= 0; i
< options
[best
]; i
++)
1915 argv
[best
+ i
+ 1] = 0;
1918 /* If duplicate options were deleted, fill up extra space with null ptrs. */
1922 memcpy (argv
, new, sizeof (char *) * argc
);
1929 DEFUN ("kill-emacs", Fkill_emacs
, Skill_emacs
, 0, 1, "P",
1930 doc
: /* Exit the Emacs job and kill it.
1931 If ARG is an integer, return ARG as the exit program code.
1932 If ARG is a string, stuff it as keyboard input.
1934 This function is called upon receipt of the signals SIGTERM
1935 or SIGHUP, and upon SIGINT in batch mode.
1937 The value of `kill-emacs-hook', if not void,
1938 is a list of functions (of no args),
1939 all of which are called before Emacs is actually killed. */
1940 attributes
: noreturn
)
1945 /* Fsignal calls emacs_abort () if it sees that waiting_for_input is
1947 waiting_for_input
= 0;
1948 run_hook (Qkill_emacs_hook
);
1950 #ifdef HAVE_X_WINDOWS
1951 /* Transfer any clipboards we own to the clipboard manager. */
1952 x_clipboard_manager_save_all ();
1955 shut_down_emacs (0, (STRINGP (arg
) && !feof (stdin
)) ? arg
: Qnil
);
1958 ns_release_autorelease_pool (ns_pool
);
1961 /* If we have an auto-save list file,
1962 kill it because we are exiting Emacs deliberately (not crashing).
1963 Do it after shut_down_emacs, which does an auto-save. */
1964 if (STRINGP (Vauto_save_list_file_name
))
1966 Lisp_Object listfile
;
1967 listfile
= Fexpand_file_name (Vauto_save_list_file_name
, Qnil
);
1968 unlink (SSDATA (listfile
));
1972 exit_code
= (XINT (arg
) < 0
1973 ? XINT (arg
) | INT_MIN
1974 : XINT (arg
) & INT_MAX
);
1976 exit_code
= EXIT_SUCCESS
;
1981 /* Perform an orderly shutdown of Emacs. Autosave any modified
1982 buffers, kill any child processes, clean up the terminal modes (if
1983 we're in the foreground), and other stuff like that. Don't perform
1984 any redisplay; this may be called when Emacs is shutting down in
1985 the background, or after its X connection has died.
1987 If SIG is a signal number, print a message for it.
1989 This is called by fatal signal handlers, X protocol error handlers,
1993 shut_down_emacs (int sig
, Lisp_Object stuff
)
1995 /* Prevent running of hooks from now on. */
1998 /* Don't update display from now on. */
1999 Vinhibit_redisplay
= Qt
;
2001 /* If we are controlling the terminal, reset terminal modes. */
2004 pid_t pgrp
= getpgrp ();
2005 pid_t tpgrp
= tcgetpgrp (0);
2006 if ((tpgrp
!= -1) && tpgrp
== pgrp
)
2008 reset_all_sys_modes ();
2009 if (sig
&& sig
!= SIGTERM
)
2011 static char const format
[] = "Fatal error %d: ";
2012 char buf
[sizeof format
- 2 + INT_STRLEN_BOUND (int)];
2013 int buflen
= sprintf (buf
, format
, sig
);
2014 char const *sig_desc
= safe_strsignal (sig
);
2015 emacs_write (STDERR_FILENO
, buf
, buflen
);
2016 emacs_write (STDERR_FILENO
, sig_desc
, strlen (sig_desc
));
2022 reset_all_sys_modes ();
2025 stuff_buffered_input (stuff
);
2027 inhibit_sentinels
= 1;
2028 kill_buffer_processes (Qnil
);
2029 Fdo_auto_save (Qt
, Qnil
);
2031 unlock_all_files ();
2033 /* There is a tendency for a SIGIO signal to arrive within exit,
2034 and cause a SIGHUP because the input descriptor is already closed. */
2037 /* Do this only if terminating normally, we want glyph matrices
2038 etc. in a core dump. */
2039 if (sig
== 0 || sig
== SIGTERM
)
2041 check_glyph_memory ();
2042 check_message_stack ();
2050 ns_term_shutdown (sig
);
2054 xml_cleanup_parser ();
2068 DEFUN ("dump-emacs", Fdump_emacs
, Sdump_emacs
, 2, 2, 0,
2069 doc
: /* Dump current state of Emacs into executable file FILENAME.
2070 Take symbols from SYMFILE (presumably the file you executed to run Emacs).
2071 This is used in the file `loadup.el' when building Emacs.
2073 You must run Emacs in batch mode in order to dump it. */)
2074 (Lisp_Object filename
, Lisp_Object symfile
)
2078 ptrdiff_t count
= SPECPDL_INDEX ();
2082 if (! noninteractive
)
2083 error ("Dumping Emacs works only in batch mode");
2086 error ("Emacs can be dumped only once");
2090 /* Warn if the gap between BSS end and heap start is larger than this. */
2091 # define MAX_HEAP_BSS_DIFF (1024*1024)
2093 if (heap_bss_diff
> MAX_HEAP_BSS_DIFF
)
2095 fprintf (stderr
, "**************************************************\n");
2096 fprintf (stderr
, "Warning: Your system has a gap between BSS and the\n");
2097 fprintf (stderr
, "heap (%"pMu
" bytes). This usually means that exec-shield\n",
2099 fprintf (stderr
, "or something similar is in effect. The dump may\n");
2100 fprintf (stderr
, "fail because of this. See the section about\n");
2101 fprintf (stderr
, "exec-shield in etc/PROBLEMS for more information.\n");
2102 fprintf (stderr
, "**************************************************\n");
2104 #endif /* GNU_LINUX */
2106 /* Bind `command-line-processed' to nil before dumping,
2107 so that the dumped Emacs will process its command line
2108 and set up to work with X windows if appropriate. */
2109 symbol
= intern ("command-line-processed");
2110 specbind (symbol
, Qnil
);
2112 CHECK_STRING (filename
);
2113 filename
= Fexpand_file_name (filename
, Qnil
);
2114 filename
= ENCODE_FILE (filename
);
2115 if (!NILP (symfile
))
2117 CHECK_STRING (symfile
);
2118 if (SCHARS (symfile
))
2120 symfile
= Fexpand_file_name (symfile
, Qnil
);
2121 symfile
= ENCODE_FILE (symfile
);
2126 Vpurify_flag
= Qnil
;
2128 #ifdef HYBRID_MALLOC
2130 static char const fmt
[] = "%d of %d static heap bytes used";
2131 char buf
[sizeof fmt
+ 2 * (INT_STRLEN_BOUND (int) - 2)];
2132 int max_usage
= max_bss_sbrk_ptr
- bss_sbrk_buffer
;
2133 sprintf (buf
, fmt
, max_usage
, STATIC_HEAP_SIZE
);
2134 /* Don't log messages, because at this point buffers cannot be created. */
2135 message1_nolog (buf
);
2140 /* Tell malloc where start of impure now is. */
2141 /* Also arrange for warnings when nearly out of space. */
2142 #if !defined SYSTEM_MALLOC && !defined HYBRID_MALLOC
2144 /* On Windows, this was done before dumping, and that once suffices.
2145 Meanwhile, my_edata is not valid on Windows. */
2146 memory_warnings (my_edata
, malloc_warning
);
2147 #endif /* not WINDOWSNT */
2148 #endif /* not SYSTEM_MALLOC and not HYBRID_MALLOC */
2150 alloc_unexec_pre ();
2152 unexec (SSDATA (filename
), !NILP (symfile
) ? SSDATA (symfile
) : 0);
2154 alloc_unexec_post ();
2157 Vlibrary_cache
= Qnil
;
2159 #ifdef HAVE_WINDOW_SYSTEM
2160 reset_image_types ();
2165 return unbind_to (count
, Qnil
);
2168 #endif /* not CANNOT_DUMP */
2171 /* Recover from setlocale (LC_ALL, ""). */
2175 /* The Emacs Lisp reader needs LC_NUMERIC to be "C",
2176 so that numbers are read and printed properly for Emacs Lisp. */
2177 setlocale (LC_NUMERIC
, "C");
2180 /* Set system locale CATEGORY, with previous locale *PLOCALE, to
2183 synchronize_locale (int category
, Lisp_Object
*plocale
, Lisp_Object desired_locale
)
2185 if (! EQ (*plocale
, desired_locale
))
2187 *plocale
= desired_locale
;
2189 /* Changing categories like LC_TIME usually requires specifying
2190 an encoding suitable for the new locale, but MS-Windows's
2191 'setlocale' will only switch the encoding when LC_ALL is
2192 specified. So we ignore CATEGORY, use LC_ALL instead, and
2193 then restore LC_NUMERIC to "C", so reading and printing
2194 numbers is unaffected. */
2195 setlocale (LC_ALL
, (STRINGP (desired_locale
)
2196 ? SSDATA (desired_locale
)
2199 #else /* !WINDOWSNT */
2200 setlocale (category
, (STRINGP (desired_locale
)
2201 ? SSDATA (desired_locale
)
2203 #endif /* !WINDOWSNT */
2207 /* Set system time locale to match Vsystem_time_locale, if possible. */
2209 synchronize_system_time_locale (void)
2211 synchronize_locale (LC_TIME
, &Vprevious_system_time_locale
,
2212 Vsystem_time_locale
);
2215 /* Set system messages locale to match Vsystem_messages_locale, if
2218 synchronize_system_messages_locale (void)
2221 synchronize_locale (LC_MESSAGES
, &Vprevious_system_messages_locale
,
2222 Vsystem_messages_locale
);
2225 #endif /* HAVE_SETLOCALE */
2227 /* Return a diagnostic string for ERROR_NUMBER, in the wording
2228 and encoding appropriate for the current locale. */
2230 emacs_strerror (int error_number
)
2232 synchronize_system_messages_locale ();
2233 return strerror (error_number
);
2238 decode_env_path (const char *evarname
, const char *defalt
, bool empty
)
2240 const char *path
, *p
;
2241 Lisp_Object lpath
, element
, tem
;
2242 /* Default is to use "." for empty path elements.
2243 But if argument EMPTY is true, use nil instead. */
2244 Lisp_Object empty_element
= empty
? Qnil
: build_string (".");
2247 static const char *emacs_dir_env
= "%emacs_dir%/";
2248 const size_t emacs_dir_len
= strlen (emacs_dir_env
);
2249 const char *edir
= egetenv ("emacs_dir");
2250 char emacs_dir
[MAX_UTF8_PATH
];
2252 /* egetenv looks in process-environment, which holds the variables
2253 in their original system-locale encoding. We need emacs_dir to
2256 filename_from_ansi (edir
, emacs_dir
);
2259 /* It's okay to use getenv here, because this function is only used
2260 to initialize variables when Emacs starts up, and isn't called
2263 path
= getenv (evarname
);
2274 /* Ensure values from the environment use the proper directory separator. */
2280 char *path_utf8
, *q
, *d
;
2283 /* Convert each element of PATH to UTF-8. */
2284 p
= path_copy
= alloca (strlen (path
) + 1);
2285 strcpy (path_copy
, path
);
2286 d
= path_utf8
= alloca (4 * strlen (path
) + 1);
2289 q
= _mbschr (p
, SEPCHAR
);
2292 cnv_result
= filename_from_ansi (p
, d
);
2297 /* If conversion of this PATH elements fails, make sure
2298 destination pointer will stay put, thus effectively
2299 ignoring the offending element. */
2300 if (cnv_result
== 0)
2306 else if (cnv_result
!= 0 && d
> path_utf8
)
2307 d
[-1] = '\0'; /* remove last semi-colon and null-terminate PATH */
2309 path_copy
= path_utf8
;
2311 path_copy
= alloca (strlen (path
) + 1);
2312 strcpy (path_copy
, path
);
2314 dostounix_filename (path_copy
);
2321 p
= strchr (path
, SEPCHAR
);
2323 p
= path
+ strlen (path
);
2324 element
= ((p
- path
) ? make_unibyte_string (path
, p
- path
)
2326 if (! NILP (element
))
2329 /* Relative file names in the default path are interpreted as
2330 being relative to $emacs_dir. */
2331 if (edir
&& defaulted
2332 && strncmp (path
, emacs_dir_env
, emacs_dir_len
) == 0)
2333 element
= Fexpand_file_name (Fsubstring
2335 make_number (emacs_dir_len
),
2337 build_unibyte_string (emacs_dir
));
2340 /* Add /: to the front of the name
2341 if it would otherwise be treated as magic. */
2342 tem
= Ffind_file_name_handler (element
, Qt
);
2344 /* However, if the handler says "I'm safe",
2345 don't bother adding /:. */
2349 prop
= Fget (tem
, intern ("safe-magic"));
2356 AUTO_STRING (slash_colon
, "/:");
2357 element
= concat2 (slash_colon
, element
);
2359 } /* !NILP (element) */
2361 lpath
= Fcons (element
, lpath
);
2367 return Fnreverse (lpath
);
2370 DEFUN ("daemonp", Fdaemonp
, Sdaemonp
, 0, 0, 0,
2371 doc
: /* Return non-nil if the current emacs process is a daemon.
2372 If the daemon was given a name argument, return that name. */)
2377 return build_string (daemon_name
);
2384 DEFUN ("daemon-initialized", Fdaemon_initialized
, Sdaemon_initialized
, 0, 0, 0,
2385 doc
: /* Mark the Emacs daemon as being initialized.
2386 This finishes the daemonization process by doing the other half of detaching
2387 from the parent process and its tty file descriptors. */)
2393 error ("This function can only be called if emacs is run as a daemon");
2395 if (!DAEMON_RUNNING
)
2396 error ("The daemon has already been initialized");
2398 if (NILP (Vafter_init_time
))
2399 error ("This function can only be called after loading the init files");
2403 /* Get rid of stdin, stdout and stderr. */
2404 nfd
= emacs_open ("/dev/null", O_RDWR
, 0);
2406 err
|= dup2 (nfd
, STDIN_FILENO
) < 0;
2407 err
|= dup2 (nfd
, STDOUT_FILENO
) < 0;
2408 err
|= dup2 (nfd
, STDERR_FILENO
) < 0;
2409 err
|= emacs_close (nfd
) != 0;
2411 /* Closing the pipe will notify the parent that it can exit.
2412 FIXME: In case some other process inherited the pipe, closing it here
2413 won't notify the parent because it's still open elsewhere, so we
2414 additionally send a byte, just to make sure the parent really exits.
2415 Instead, we should probably close the pipe in start-process and
2416 call-process to make sure the pipe is never inherited by
2418 err
|= write (daemon_pipe
[1], "\n", 1) < 0;
2419 err
|= emacs_close (daemon_pipe
[1]) != 0;
2420 /* Set it to an invalid value so we know we've already run this function. */
2421 daemon_pipe
[1] = -1;
2422 #else /* WINDOWSNT */
2423 /* Signal the waiting emacsclient process. */
2424 err
|= SetEvent (w32_daemon_event
) == 0;
2425 err
|= CloseHandle (w32_daemon_event
) == 0;
2426 /* Set it to an invalid value so we know we've already run this function. */
2427 w32_daemon_event
= INVALID_HANDLE_VALUE
;
2431 error ("I/O error during daemon initialization");
2436 syms_of_emacs (void)
2438 DEFSYM (Qfile_name_handler_alist
, "file-name-handler-alist");
2439 DEFSYM (Qrisky_local_variable
, "risky-local-variable");
2440 DEFSYM (Qkill_emacs
, "kill-emacs");
2441 DEFSYM (Qkill_emacs_hook
, "kill-emacs-hook");
2444 defsubr (&Sdump_emacs
);
2447 defsubr (&Skill_emacs
);
2449 defsubr (&Sinvocation_name
);
2450 defsubr (&Sinvocation_directory
);
2451 defsubr (&Sdaemonp
);
2452 defsubr (&Sdaemon_initialized
);
2454 DEFVAR_LISP ("command-line-args", Vcommand_line_args
,
2455 doc
: /* Args passed by shell to Emacs, as a list of strings.
2456 Many arguments are deleted from the list as they are processed. */);
2458 DEFVAR_LISP ("system-type", Vsystem_type
,
2459 doc
: /* The value is a symbol indicating the type of operating system you are using.
2461 `gnu' compiled for a GNU Hurd system.
2462 `gnu/linux' compiled for a GNU/Linux system.
2463 `gnu/kfreebsd' compiled for a GNU system with a FreeBSD kernel.
2464 `darwin' compiled for Darwin (GNU-Darwin, Mac OS X, ...).
2465 `ms-dos' compiled as an MS-DOS application.
2466 `windows-nt' compiled as a native W32 application.
2467 `cygwin' compiled using the Cygwin library.
2468 Anything else (in Emacs 26, the possibilities are: aix, berkeley-unix,
2469 hpux, usg-unix-v) indicates some sort of Unix system. */);
2470 Vsystem_type
= intern_c_string (SYSTEM_TYPE
);
2471 /* See configure.ac for the possible SYSTEM_TYPEs. */
2473 DEFVAR_LISP ("system-configuration", Vsystem_configuration
,
2474 doc
: /* Value is string indicating configuration Emacs was built for. */);
2475 Vsystem_configuration
= build_string (EMACS_CONFIGURATION
);
2477 DEFVAR_LISP ("system-configuration-options", Vsystem_configuration_options
,
2478 doc
: /* String containing the configuration options Emacs was built with. */);
2479 Vsystem_configuration_options
= build_string (EMACS_CONFIG_OPTIONS
);
2481 DEFVAR_LISP ("system-configuration-features", Vsystem_configuration_features
,
2482 doc
: /* String listing some of the main features this Emacs was compiled with.
2483 An element of the form \"FOO\" generally means that HAVE_FOO was
2484 defined during the build.
2486 This is mainly intended for diagnostic purposes in bug reports.
2487 Don't rely on it for testing whether a feature you want to use is available. */);
2488 Vsystem_configuration_features
= build_string (EMACS_CONFIG_FEATURES
);
2490 DEFVAR_BOOL ("noninteractive", noninteractive1
,
2491 doc
: /* Non-nil means Emacs is running without interactive terminal. */);
2493 DEFVAR_LISP ("kill-emacs-hook", Vkill_emacs_hook
,
2494 doc
: /* Hook run when `kill-emacs' is called.
2495 Since `kill-emacs' may be invoked when the terminal is disconnected (or
2496 in other similar situations), functions placed on this hook should not
2497 expect to be able to interact with the user. To ask for confirmation,
2498 see `kill-emacs-query-functions' instead.
2500 Before Emacs 24.1, the hook was not run in batch mode, i.e., if
2501 `noninteractive' was non-nil. */);
2502 Vkill_emacs_hook
= Qnil
;
2504 DEFVAR_LISP ("path-separator", Vpath_separator
,
2505 doc
: /* String containing the character that separates directories in
2506 search paths, such as PATH and other similar environment variables. */);
2509 Vpath_separator
= make_string (&c
, 1);
2512 DEFVAR_LISP ("invocation-name", Vinvocation_name
,
2513 doc
: /* The program name that was used to run Emacs.
2514 Any directory names are omitted. */);
2516 DEFVAR_LISP ("invocation-directory", Vinvocation_directory
,
2517 doc
: /* The directory in which the Emacs executable was found, to run it.
2518 The value is nil if that directory's name is not known. */);
2520 DEFVAR_LISP ("installation-directory", Vinstallation_directory
,
2521 doc
: /* A directory within which to look for the `lib-src' and `etc' directories.
2522 In an installed Emacs, this is normally nil. It is non-nil if
2523 both `lib-src' (on MS-DOS, `info') and `etc' directories are found
2524 within the variable `invocation-directory' or its parent. For example,
2525 this is the case when running an uninstalled Emacs executable from its
2526 build directory. */);
2527 Vinstallation_directory
= Qnil
;
2529 DEFVAR_LISP ("system-messages-locale", Vsystem_messages_locale
,
2530 doc
: /* System locale for messages. */);
2531 Vsystem_messages_locale
= Qnil
;
2533 DEFVAR_LISP ("previous-system-messages-locale",
2534 Vprevious_system_messages_locale
,
2535 doc
: /* Most recently used system locale for messages. */);
2536 Vprevious_system_messages_locale
= Qnil
;
2538 DEFVAR_LISP ("system-time-locale", Vsystem_time_locale
,
2539 doc
: /* System locale for time. */);
2540 Vsystem_time_locale
= Qnil
;
2542 DEFVAR_LISP ("previous-system-time-locale", Vprevious_system_time_locale
,
2543 doc
: /* Most recently used system locale for time. */);
2544 Vprevious_system_time_locale
= Qnil
;
2546 DEFVAR_LISP ("before-init-time", Vbefore_init_time
,
2547 doc
: /* Value of `current-time' before Emacs begins initialization. */);
2548 Vbefore_init_time
= Qnil
;
2550 DEFVAR_LISP ("after-init-time", Vafter_init_time
,
2551 doc
: /* Value of `current-time' after loading the init files.
2552 This is nil during initialization. */);
2553 Vafter_init_time
= Qnil
;
2555 DEFVAR_BOOL ("inhibit-x-resources", inhibit_x_resources
,
2556 doc
: /* If non-nil, X resources, Windows Registry settings, and NS defaults are not used. */);
2557 inhibit_x_resources
= 0;
2559 DEFVAR_LISP ("emacs-copyright", Vemacs_copyright
,
2560 doc
: /* Short copyright string for this version of Emacs. */);
2561 Vemacs_copyright
= build_string (emacs_copyright
);
2563 DEFVAR_LISP ("emacs-version", Vemacs_version
,
2564 doc
: /* Version numbers of this version of Emacs. */);
2565 Vemacs_version
= build_string (emacs_version
);
2567 DEFVAR_LISP ("report-emacs-bug-address", Vreport_emacs_bug_address
,
2568 doc
: /* Address of mailing list for GNU Emacs bugs. */);
2569 Vreport_emacs_bug_address
= build_string (emacs_bugreport
);
2571 DEFVAR_LISP ("dynamic-library-alist", Vdynamic_library_alist
,
2572 doc
: /* Alist of dynamic libraries vs external files implementing them.
2573 Each element is a list (LIBRARY FILE...), where the car is a symbol
2574 representing a supported external library, and the rest are strings giving
2575 alternate filenames for that library.
2577 Emacs tries to load the library from the files in the order they appear on
2578 the list; if none is loaded, the running session of Emacs won't have access
2581 Note that image types `pbm' and `xbm' do not need entries in this variable
2582 because they do not depend on external libraries and are always available.
2584 Also note that this is not a generic facility for accessing external
2585 libraries; only those already known by Emacs will be loaded. */);
2586 Vdynamic_library_alist
= Qnil
;
2587 Fput (intern_c_string ("dynamic-library-alist"), Qrisky_local_variable
, Qt
);
2590 Vlibrary_cache
= Qnil
;
2591 staticpro (&Vlibrary_cache
);