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
29 #include <sys/types.h>
33 #include <close-stream.h>
40 #include <sys/socket.h>
46 #if defined WINDOWSNT || defined HAVE_NTGUI
47 #include "w32select.h"
49 #include "w32common.h"
57 #include <binary-io.h>
61 #ifdef HAVE_LIBSYSTEMD
62 # include <systemd/sd-daemon.h>
63 # include <sys/socket.h>
66 #ifdef HAVE_WINDOW_SYSTEM
68 #endif /* HAVE_WINDOW_SYSTEM */
70 #include "intervals.h"
71 #include "character.h"
76 #include "blockinput.h"
77 #include "syssignal.h"
80 #include "termhooks.h"
85 #include "composite.h"
86 #include "dispextern.h"
90 #include "sysselect.h"
94 #include "getpagesize.h"
97 #if (defined PROFILING \
98 && (defined __FreeBSD__ || defined GNU_LINUX || defined __MINGW32__))
99 # include <sys/gmon.h>
100 extern void moncontrol (int mode
);
103 #ifdef HAVE_SETLOCALE
111 #ifdef HAVE_SETRLIMIT
112 #include <sys/time.h>
113 #include <sys/resource.h>
116 static const char emacs_version
[] = PACKAGE_VERSION
;
117 static const char emacs_copyright
[] = COPYRIGHT
;
118 static const char emacs_bugreport
[] = PACKAGE_BUGREPORT
;
120 /* Empty lisp strings. To avoid having to build any others. */
121 Lisp_Object empty_unibyte_string
, empty_multibyte_string
;
124 /* Cache for externally loaded libraries. */
125 Lisp_Object Vlibrary_cache
;
128 /* Set after Emacs has started up the first time.
129 Prevents reinitialization of the Lisp world and keymaps
130 on subsequent starts. */
134 /* Set to true if this instance of Emacs might dump. */
135 # ifndef DOUG_LEA_MALLOC
142 extern void unexec_init_emacs_zone (void);
145 /* If true, Emacs should not attempt to use a window-specific code,
146 but instead should use the virtual terminal under which it was started. */
147 bool inhibit_window_system
;
149 /* If true, a filter or a sentinel is running. Tested to save the match
150 data on the first attempt to change it inside asynchronous code. */
151 bool running_asynch_code
;
153 #if defined (HAVE_X_WINDOWS) || defined (HAVE_NS)
154 /* If true, -d was specified, meaning we're using some window system. */
158 /* An address near the bottom of the stack.
159 Tells GC how to save a copy of the stack. */
162 #if defined GNU_LINUX && !defined CANNOT_DUMP
163 /* The gap between BSS end and heap start as far as we can tell. */
164 static uprintmax_t heap_bss_diff
;
167 /* To run as a background daemon under Cocoa or Windows,
168 we must do a fork+exec, not a simple fork.
170 On Cocoa, CoreFoundation lib fails in forked process:
171 http://developer.apple.com/ReleaseNotes/
172 CoreFoundation/CoreFoundation.html)
174 On Windows, a Cygwin fork child cannot access the USER subsystem.
176 We mark being in the exec'd process by a daemon name argument of
177 form "--daemon=\nFD0,FD1\nNAME" where FD are the pipe file descriptors,
178 NAME is the original daemon name, if any. */
179 #if defined NS_IMPL_COCOA || (defined HAVE_NTGUI && defined CYGWIN)
180 # define DAEMON_MUST_EXEC
183 /* True means running Emacs without interactive terminal. */
186 /* True means remove site-lisp directories from load-path. */
189 /* True means put details like time stamps into builds. */
192 /* Name for the server started by the daemon.*/
193 static char *daemon_name
;
195 /* 0 not a daemon, 1 new-style (foreground), 2 old-style (background). */
199 /* Pipe used to send exit notification to the background daemon parent at
200 startup. On Windows, we use a kernel event instead. */
201 static int daemon_pipe
[2];
203 HANDLE w32_daemon_event
;
206 /* Save argv and argc. */
210 static void sort_args (int argc
, char **argv
);
211 static void syms_of_emacs (void);
213 /* C99 needs each string to be at most 4095 characters, and the usage
214 strings below are split to not overflow this limit. */
215 static char const *const usage_message
[] =
218 Run Emacs, the extensible, customizable, self-documenting real-time\n\
219 display editor. The recommended way to start Emacs for normal editing\n\
220 is with no options at all.\n\
222 Run M-x info RET m emacs RET m emacs invocation RET inside Emacs to\n\
223 read the main documentation for these command-line arguments.\n\
225 Initialization options:\n\
229 --batch do not do interactive display; implies -q\n\
230 --chdir DIR change to directory DIR\n\
231 --daemon, --old-daemon[=NAME] start a (named) server in the background\n\
232 --new-daemon[=NAME] start a (named) server in the foreground\n\
233 --debug-init enable Emacs Lisp debugger for init file\n\
234 --display, -d DISPLAY use X server DISPLAY\n\
237 --no-build-details do not add build details such as time stamps\n\
238 --no-desktop do not load a saved desktop\n\
239 --no-init-file, -q load neither ~/.emacs nor default.el\n\
240 --no-loadup, -nl do not load loadup.el into bare Emacs\n\
241 --no-site-file do not load site-start.el\n\
242 --no-x-resources do not load X resources\n\
243 --no-site-lisp, -nsl do not add site-lisp directories to load-path\n\
244 --no-splash do not display a splash screen on startup\n\
245 --no-window-system, -nw do not communicate with X, ignoring $DISPLAY\n\
248 --quick, -Q equivalent to:\n\
249 -q --no-site-file --no-site-lisp --no-splash\n\
251 --script FILE run FILE as an Emacs Lisp script\n\
252 --terminal, -t DEVICE use DEVICE for terminal I/O\n\
253 --user, -u USER load ~USER/.emacs instead of your own\n\
259 FILE visit FILE using find-file\n\
260 +LINE go to line LINE in next FILE\n\
261 +LINE:COLUMN go to line LINE, column COLUMN, in next FILE\n\
262 --directory, -L DIR prepend DIR to load-path (with :DIR, append DIR)\n\
263 --eval EXPR evaluate Emacs Lisp expression EXPR\n\
264 --execute EXPR evaluate Emacs Lisp expression EXPR\n\
267 --file FILE visit FILE using find-file\n\
268 --find-file FILE visit FILE using find-file\n\
269 --funcall, -f FUNC call Emacs Lisp function FUNC with no arguments\n\
270 --insert FILE insert contents of FILE into current buffer\n\
271 --kill exit without asking for confirmation\n\
272 --load, -l FILE load Emacs Lisp FILE using the load function\n\
273 --visit FILE visit FILE using find-file\n\
279 --background-color, -bg COLOR window background color\n\
280 --basic-display, -D disable many display features;\n\
281 used for debugging Emacs\n\
282 --border-color, -bd COLOR main border color\n\
283 --border-width, -bw WIDTH width of main border\n\
286 --color, --color=MODE override color mode for character terminals;\n\
287 MODE defaults to `auto', and\n\
288 can also be `never', `always',\n\
289 or a mode name like `ansi8'\n\
290 --cursor-color, -cr COLOR color of the Emacs cursor indicating point\n\
291 --font, -fn FONT default font; must be fixed-width\n\
292 --foreground-color, -fg COLOR window foreground color\n\
295 --fullheight, -fh make the first frame high as the screen\n\
296 --fullscreen, -fs make the first frame fullscreen\n\
297 --fullwidth, -fw make the first frame wide as the screen\n\
298 --maximized, -mm make the first frame maximized\n\
299 --geometry, -g GEOMETRY window geometry\n\
302 --no-bitmap-icon, -nbi do not use picture of gnu for Emacs icon\n\
303 --iconic start Emacs in iconified state\n\
304 --internal-border, -ib WIDTH width between text and main border\n\
305 --line-spacing, -lsp PIXELS additional space to put between lines\n\
306 --mouse-color, -ms COLOR mouse cursor color in Emacs window\n\
307 --name NAME title for initial Emacs frame\n\
310 --no-blinking-cursor, -nbc disable blinking cursor\n\
311 --reverse-video, -r, -rv switch foreground and background\n\
312 --title, -T TITLE title for initial Emacs frame\n\
313 --vertical-scroll-bars, -vb enable vertical scroll bars\n\
314 --xrm XRESOURCES set additional X resources\n\
315 --parent-id XID set parent window\n\
316 --help display this help and exit\n\
317 --version output version information and exit\n\
321 You can generally also specify long option names with a single -; for\n\
322 example, -batch as well as --batch. You can use any unambiguous\n\
323 abbreviation for a --option.\n\
325 Various environment variables and window system resources also affect\n\
326 the operation of Emacs. See the main documentation.\n\
328 Report bugs to " PACKAGE_BUGREPORT
". First, please see the Bugs\n\
329 section of the Emacs manual or the file BUGS.\n"
333 /* True if handling a fatal error already. */
334 bool fatal_error_in_progress
;
337 /* NS autrelease pool, for memory management. */
338 static void *ns_pool
;
343 setlocale (int cat
, char const *locale
)
349 /* True if the current system locale uses UTF-8 encoding. */
355 mbstate_t mbs
= { 0 };
356 return mbrtowc (&wc
, "\xc4\x80", 2, &mbs
) == 2 && wc
== 0x100;
363 /* Report a fatal error due to signal SIG, output a backtrace of at
364 most BACKTRACE_LIMIT lines, and exit. */
366 terminate_due_to_signal (int sig
, int backtrace_limit
)
368 signal (sig
, SIG_DFL
);
370 if (attempt_orderly_shutdown_on_fatal_signal
)
372 /* If fatal error occurs in code below, avoid infinite recursion. */
373 if (! fatal_error_in_progress
)
375 fatal_error_in_progress
= 1;
377 totally_unblock_input ();
378 if (sig
== SIGTERM
|| sig
== SIGHUP
|| sig
== SIGINT
)
379 Fkill_emacs (make_number (sig
));
381 shut_down_emacs (sig
, Qnil
);
382 emacs_backtrace (backtrace_limit
);
386 /* Signal the same code; this time it will really be fatal.
387 Since we're in a signal handler, the signal is blocked, so we
388 have to unblock it if we want to really receive it. */
392 sigemptyset (&unblocked
);
393 sigaddset (&unblocked
, sig
);
394 pthread_sigmask (SIG_UNBLOCK
, &unblocked
, 0);
400 /* This shouldn't be executed, but it prevents a warning. */
404 /* Code for dealing with Lisp access to the Unix command line. */
407 init_cmdargs (int argc
, char **argv
, int skip_args
, char *original_pwd
)
410 Lisp_Object name
, dir
, handler
;
411 ptrdiff_t count
= SPECPDL_INDEX ();
412 Lisp_Object raw_name
;
413 AUTO_STRING (slash_colon
, "/:");
419 /* Must use argv[0] converted to UTF-8, as it begets many standard
420 file and directory names. */
422 char argv0
[MAX_UTF8_PATH
];
424 if (filename_from_ansi (argv
[0], argv0
) == 0)
425 raw_name
= build_unibyte_string (argv0
);
427 raw_name
= build_unibyte_string (argv
[0]);
430 raw_name
= build_unibyte_string (argv
[0]);
433 /* Add /: to the front of the name
434 if it would otherwise be treated as magic. */
435 handler
= Ffind_file_name_handler (raw_name
, Qt
);
436 if (! NILP (handler
))
437 raw_name
= concat2 (slash_colon
, raw_name
);
439 Vinvocation_name
= Ffile_name_nondirectory (raw_name
);
440 Vinvocation_directory
= Ffile_name_directory (raw_name
);
442 /* If we got no directory in argv[0], search PATH to find where
443 Emacs actually came from. */
444 if (NILP (Vinvocation_directory
))
447 int yes
= openp (Vexec_path
, Vinvocation_name
,
448 Vexec_suffixes
, &found
, make_number (X_OK
), false);
451 /* Add /: to the front of the name
452 if it would otherwise be treated as magic. */
453 handler
= Ffind_file_name_handler (found
, Qt
);
454 if (! NILP (handler
))
455 found
= concat2 (slash_colon
, found
);
456 Vinvocation_directory
= Ffile_name_directory (found
);
460 if (!NILP (Vinvocation_directory
)
461 && NILP (Ffile_name_absolute_p (Vinvocation_directory
)))
462 /* Emacs was started with relative path, like ./emacs.
466 original_pwd
? build_unibyte_string (original_pwd
) : Qnil
;
468 Vinvocation_directory
= Fexpand_file_name (Vinvocation_directory
, odir
);
471 Vinstallation_directory
= Qnil
;
473 if (!NILP (Vinvocation_directory
))
475 dir
= Vinvocation_directory
;
477 /* If we are running from the build directory, set DIR to the
478 src subdirectory of the Emacs tree, like on Posix
480 if (SBYTES (dir
) > sizeof ("/i386/") - 1
481 && 0 == strcmp (SSDATA (dir
) + SBYTES (dir
) - sizeof ("/i386/") + 1,
483 dir
= Fexpand_file_name (build_string ("../.."), dir
);
484 #else /* !WINDOWSNT */
486 name
= Fexpand_file_name (Vinvocation_name
, dir
);
489 Lisp_Object tem
, lib_src_exists
;
490 Lisp_Object etc_exists
, info_exists
;
492 /* See if dir contains subdirs for use by Emacs.
493 Check for the ones that would exist in a build directory,
494 not including lisp and info. */
495 tem
= Fexpand_file_name (build_string ("lib-src"), dir
);
496 lib_src_exists
= Ffile_exists_p (tem
);
499 /* MSDOS installations frequently remove lib-src, but we still
500 must set installation-directory, or else info won't find
501 its files (it uses the value of installation-directory). */
502 tem
= Fexpand_file_name (build_string ("info"), dir
);
503 info_exists
= Ffile_exists_p (tem
);
508 if (!NILP (lib_src_exists
) || !NILP (info_exists
))
510 tem
= Fexpand_file_name (build_string ("etc"), dir
);
511 etc_exists
= Ffile_exists_p (tem
);
512 if (!NILP (etc_exists
))
514 Vinstallation_directory
515 = Ffile_name_as_directory (dir
);
520 /* See if dir's parent contains those subdirs. */
521 tem
= Fexpand_file_name (build_string ("../lib-src"), dir
);
522 lib_src_exists
= Ffile_exists_p (tem
);
526 /* See the MSDOS commentary above. */
527 tem
= Fexpand_file_name (build_string ("../info"), dir
);
528 info_exists
= Ffile_exists_p (tem
);
533 if (!NILP (lib_src_exists
) || !NILP (info_exists
))
535 tem
= Fexpand_file_name (build_string ("../etc"), dir
);
536 etc_exists
= Ffile_exists_p (tem
);
537 if (!NILP (etc_exists
))
539 tem
= Fexpand_file_name (build_string (".."), dir
);
540 Vinstallation_directory
541 = Ffile_name_as_directory (tem
);
546 /* If the Emacs executable is actually a link,
547 next try the dir that the link points into. */
548 tem
= Ffile_symlink_p (name
);
551 name
= Fexpand_file_name (tem
, dir
);
552 dir
= Ffile_name_directory (name
);
559 Vcommand_line_args
= Qnil
;
561 for (i
= argc
- 1; i
>= 0; i
--)
563 if (i
== 0 || i
> skip_args
)
564 /* For the moment, we keep arguments as is in unibyte strings.
565 They are decoded in the function command-line after we know
566 locale-coding-system. */
568 = Fcons (build_unibyte_string (argv
[i
]), Vcommand_line_args
);
571 unbind_to (count
, Qnil
);
574 DEFUN ("invocation-name", Finvocation_name
, Sinvocation_name
, 0, 0, 0,
575 doc
: /* Return the program name that was used to run Emacs.
576 Any directory names are omitted. */)
579 return Fcopy_sequence (Vinvocation_name
);
582 DEFUN ("invocation-directory", Finvocation_directory
, Sinvocation_directory
,
584 doc
: /* Return the directory name in which the Emacs executable was located. */)
587 return Fcopy_sequence (Vinvocation_directory
);
591 /* Test whether the next argument in ARGV matches SSTR or a prefix of
592 LSTR (at least MINLEN characters). If so, then if VALPTR is non-null
593 (the argument is supposed to have a value) store in *VALPTR either
594 the next argument or the portion of this one after the equal sign.
595 ARGV is read starting at position *SKIPPTR; this index is advanced
596 by the number of arguments used.
598 Too bad we can't just use getopt for all of this, but we don't have
599 enough information to do it right. */
602 argmatch (char **argv
, int argc
, const char *sstr
, const char *lstr
,
603 int minlen
, char **valptr
, int *skipptr
)
609 /* Don't access argv[argc]; give up in advance. */
610 if (argc
<= *skipptr
+ 1)
613 arg
= argv
[*skipptr
+1];
616 if (strcmp (arg
, sstr
) == 0)
620 *valptr
= argv
[*skipptr
+2];
627 arglen
= (valptr
!= NULL
&& (p
= strchr (arg
, '=')) != NULL
628 ? p
- arg
: strlen (arg
));
629 if (lstr
== 0 || arglen
< minlen
|| strncmp (arg
, lstr
, arglen
) != 0)
631 else if (valptr
== NULL
)
642 else if (argv
[*skipptr
+2] != NULL
)
644 *valptr
= argv
[*skipptr
+2];
654 /* Close standard output and standard error, reporting any write
655 errors as best we can. This is intended for use with atexit. */
657 close_output_streams (void)
659 if (close_stream (stdout
) != 0)
661 emacs_perror ("Write error to standard output");
662 _exit (EXIT_FAILURE
);
665 if (close_stream (stderr
) != 0)
666 _exit (EXIT_FAILURE
);
671 main (int argc
, char **argv
)
674 char stack_bottom_variable
;
675 bool do_initial_setlocale
;
678 bool no_loadup
= false;
681 #ifdef DAEMON_MUST_EXEC
686 /* If we use --chdir, this records the original directory. */
687 char *original_pwd
= 0;
691 dumping
= !initialized
&& (strcmp (argv
[argc
- 1], "dump") == 0
692 || strcmp (argv
[argc
- 1], "bootstrap") == 0);
694 /* True if address randomization interferes with memory allocation. */
696 bool disable_aslr
= true;
698 bool disable_aslr
= dumping
;
701 if (disable_aslr
&& disable_address_randomization ())
703 /* Set this so the personality will be reverted before execs
705 xputenv ("EMACS_HEAP_EXEC=true");
707 /* Address randomization was enabled, but is now disabled.
708 Re-execute Emacs to get a clean slate. */
709 execvp (argv
[0], argv
);
711 /* If the exec fails, warn and then try anyway. */
716 might_dump
= !initialized
;
721 char *heap_start
= my_heap_start ();
722 heap_bss_diff
= heap_start
- max (my_endbss
, my_endbss_static
);
727 #if defined WINDOWSNT || defined HAVE_NTGUI
728 /* Set global variables used to detect Windows version. Do this as
729 early as possible. (unexw32.c calls this function as well, but
730 the additional call here is harmless.) */
731 cache_system_info ();
733 /* On Windows 9X, we have to load UNICOWS.DLL as early as possible,
734 to have non-stub implementations of APIs we need to convert file
735 names between UTF-8 and the system's ANSI codepage. */
736 maybe_load_unicows_dll ();
738 /* This has to be done before module_init is called below, so that
739 the latter could use the thread ID of the main thread. */
740 w32_init_main_thread ();
743 #ifdef RUN_TIME_REMAP
745 run_time_remap (argv
[0]);
748 /* If using unexmacosx.c (set by s/darwin.h), we must do this. */
751 unexec_init_emacs_zone ();
754 init_standard_fds ();
755 atexit (close_output_streams
);
761 sort_args (argc
, argv
);
763 while (argv
[argc
]) argc
++;
765 if (argmatch (argv
, argc
, "-version", "--version", 3, NULL
, &skip_args
))
767 const char *version
, *copyright
;
770 Lisp_Object tem
, tem2
;
771 tem
= Fsymbol_value (intern_c_string ("emacs-version"));
772 tem2
= Fsymbol_value (intern_c_string ("emacs-copyright"));
775 fprintf (stderr
, "Invalid value of 'emacs-version'\n");
780 fprintf (stderr
, "Invalid value of 'emacs-copyright'\n");
785 version
= SSDATA (tem
);
786 copyright
= SSDATA (tem2
);
791 version
= emacs_version
;
792 copyright
= emacs_copyright
;
794 printf ("%s %s\n", PACKAGE_NAME
, version
);
795 printf ("%s\n", copyright
);
796 printf ("%s comes with ABSOLUTELY NO WARRANTY.\n", PACKAGE_NAME
);
797 printf ("You may redistribute copies of %s\n", PACKAGE_NAME
);
798 printf ("under the terms of the GNU General Public License.\n");
799 printf ("For more information about these matters, ");
800 printf ("see the file named COPYING.\n");
804 if (argmatch (argv
, argc
, "-chdir", "--chdir", 4, &ch_to_dir
, &skip_args
))
807 /* argv[] array is kept in its original ANSI codepage encoding,
808 we need to convert to UTF-8, for chdir to work. */
809 char newdir
[MAX_UTF8_PATH
];
811 filename_from_ansi (ch_to_dir
, newdir
);
814 original_pwd
= emacs_get_current_dir_name ();
815 if (chdir (ch_to_dir
) != 0)
817 fprintf (stderr
, "%s: Can't chdir to %s: %s\n",
818 argv
[0], ch_to_dir
, strerror (errno
));
823 #if defined (HAVE_SETRLIMIT) && defined (RLIMIT_STACK) && !defined (CYGWIN)
824 /* Extend the stack space available. Don't do that if dumping,
825 since some systems (e.g. DJGPP) might define a smaller stack
826 limit at that time. And it's not needed on Cygwin, since emacs
827 is built with an 8MB stack. Moreover, the setrlimit call can
828 cause problems on Cygwin
829 (https://www.cygwin.com/ml/cygwin/2015-07/msg00096.html). */
831 if (getrlimit (RLIMIT_STACK
, &rlim
) == 0
832 && 0 <= rlim
.rlim_cur
&& rlim
.rlim_cur
<= LONG_MAX
)
834 rlim_t lim
= rlim
.rlim_cur
;
836 /* Approximate the amount regex.c needs per unit of
837 re_max_failures, then add 33% to cover the size of the
838 smaller stacks that regex.c successively allocates and
839 discards on its way to the maximum. */
840 int ratio
= 20 * sizeof (char *);
843 /* Extra space to cover what we're likely to use for other reasons. */
846 bool try_to_grow_stack
= true;
848 try_to_grow_stack
= !noninteractive
|| initialized
;
851 if (try_to_grow_stack
)
853 rlim_t newlim
= re_max_failures
* ratio
+ extra
;
855 /* Round the new limit to a page boundary; this is needed
856 for Darwin kernel 15.4.0 (see Bug#23622) and perhaps
857 other systems. Do not shrink the stack and do not exceed
858 rlim_max. Don't worry about exact values of
859 RLIM_INFINITY etc. since in practice when they are
860 nonnegative they are so large that the code does the
861 right thing anyway. */
862 long pagesize
= getpagesize ();
863 newlim
+= pagesize
- 1;
864 if (0 <= rlim
.rlim_max
&& rlim
.rlim_max
< newlim
)
865 newlim
= rlim
.rlim_max
;
866 newlim
-= newlim
% pagesize
;
868 if (pagesize
<= newlim
- lim
)
870 rlim
.rlim_cur
= newlim
;
871 if (setrlimit (RLIMIT_STACK
, &rlim
) == 0)
876 /* Don't let regex.c overflow the stack. */
877 re_max_failures
= lim
< extra
? 0 : min (lim
- extra
, SIZE_MAX
) / ratio
;
879 #endif /* HAVE_SETRLIMIT and RLIMIT_STACK and not CYGWIN */
881 /* Record (approximately) where the stack begins. */
882 stack_bottom
= &stack_bottom_variable
;
886 emacs_backtrace (-1);
888 #if !defined SYSTEM_MALLOC && !defined HYBRID_MALLOC
889 /* Arrange to get warning messages as memory fills up. */
890 memory_warnings (0, malloc_warning
);
892 /* Call malloc at least once, to run malloc_initialize_hook.
893 Also call realloc and free for consistency. */
894 free (realloc (malloc (4), 4));
896 #endif /* not SYSTEM_MALLOC and not HYBRID_MALLOC */
899 SET_BINARY (fileno (stdin
));
901 SET_BINARY (fileno (stdout
));
904 /* Skip initial setlocale if LC_ALL is "C", as it's not needed in that case.
905 The build procedure uses this while dumping, to ensure that the
906 dumped Emacs does not have its system locale tables initialized,
907 as that might cause screwups when the dumped Emacs starts up. */
909 char *lc_all
= getenv ("LC_ALL");
910 do_initial_setlocale
= ! lc_all
|| strcmp (lc_all
, "C");
913 /* Set locale now, so that initial error messages are localized properly.
914 fixup_locale must wait until later, since it builds strings. */
915 if (do_initial_setlocale
)
916 setlocale (LC_ALL
, "");
917 text_quoting_flag
= using_utf8 ();
919 inhibit_window_system
= 0;
921 /* Handle the -t switch, which specifies filename to use as terminal. */
925 if (argmatch (argv
, argc
, "-t", "--terminal", 4, &term
, &skip_args
))
927 emacs_close (STDIN_FILENO
);
928 emacs_close (STDOUT_FILENO
);
929 int result
= emacs_open (term
, O_RDWR
, 0);
930 if (result
!= STDIN_FILENO
931 || (fcntl (STDIN_FILENO
, F_DUPFD_CLOEXEC
, STDOUT_FILENO
)
934 char *errstring
= strerror (errno
);
935 fprintf (stderr
, "%s: %s: %s\n", argv
[0], term
, errstring
);
938 if (! isatty (STDIN_FILENO
))
940 fprintf (stderr
, "%s: %s: not a tty\n", argv
[0], term
);
943 fprintf (stderr
, "Using %s\n", term
);
944 #ifdef HAVE_WINDOW_SYSTEM
945 inhibit_window_system
= true; /* -t => -nw */
952 /* Command line option --no-windows is deprecated and thus not mentioned
953 in the manual and usage information. */
954 if (argmatch (argv
, argc
, "-nw", "--no-window-system", 6, NULL
, &skip_args
)
955 || argmatch (argv
, argc
, "-nw", "--no-windows", 6, NULL
, &skip_args
))
956 inhibit_window_system
= 1;
958 /* Handle the -batch switch, which means don't do interactive display. */
960 if (argmatch (argv
, argc
, "-batch", "--batch", 5, NULL
, &skip_args
))
963 Vundo_outer_limit
= Qnil
;
965 if (argmatch (argv
, argc
, "-script", "--script", 3, &junk
, &skip_args
))
967 noninteractive
= 1; /* Set batch mode. */
968 /* Convert --script to -scriptload, un-skip it, and sort again
969 so that it will be handled in proper sequence. */
970 /* FIXME broken for --script=FILE - is that supposed to work? */
971 argv
[skip_args
- 1] = (char *) "-scriptload";
973 sort_args (argc
, argv
);
976 /* Handle the --help option, which gives a usage message. */
977 if (argmatch (argv
, argc
, "-help", "--help", 3, NULL
, &skip_args
))
980 printf ("Usage: %s [OPTION-OR-FILENAME]...\n", argv
[0]);
981 for (i
= 0; i
< ARRAYELTS (usage_message
); i
++)
982 fputs (usage_message
[i
], stdout
);
989 /* Make sure IS_DAEMON starts up as false. */
992 w32_daemon_event
= NULL
;
998 if (argmatch (argv
, argc
, "-new-daemon", "--new-daemon", 10, NULL
, &skip_args
)
999 || argmatch (argv
, argc
, "-new-daemon", "--new-daemon", 10, &dname_arg
, &skip_args
))
1001 daemon_type
= 1; /* foreground */
1003 else if (argmatch (argv
, argc
, "-daemon", "--daemon", 5, NULL
, &skip_args
)
1004 || argmatch (argv
, argc
, "-daemon", "--daemon", 5, &dname_arg
, &skip_args
)
1005 || argmatch (argv
, argc
, "-old-daemon", "--old-daemon", 10, NULL
, &skip_args
)
1006 || argmatch (argv
, argc
, "-old-daemon", "--old-daemon", 10, &dname_arg
, &skip_args
))
1008 daemon_type
= 2; /* background */
1012 if (daemon_type
> 0)
1015 if (daemon_type
== 2)
1017 /* Start as a background daemon: fork a new child process which
1018 will run the rest of the initialization code, then exit.
1020 Detaching a daemon requires the following steps:
1024 - close the tty file-descriptors
1026 We only want to do the last 2 steps once the daemon is ready to
1027 serve requests, i.e. after loading .emacs (initialization).
1028 OTOH initialization may start subprocesses (e.g. ispell) and these
1029 should be run from the proper process (the one that will end up
1030 running as daemon) and with the proper "session id" in order for
1031 them to keep working after detaching, so fork and setsid need to be
1032 performed before initialization.
1034 We want to avoid exiting before the server socket is ready, so
1035 use a pipe for synchronization. The parent waits for the child
1036 to close its end of the pipe (using `daemon-initialized')
1038 if (emacs_pipe (daemon_pipe
) != 0)
1040 fprintf (stderr
, "Cannot pipe!\n");
1043 } /* daemon_type == 2 */
1045 #ifdef HAVE_LIBSYSTEMD
1046 /* Read the number of sockets passed through by systemd. */
1047 int systemd_socket
= sd_listen_fds (1);
1049 if (systemd_socket
> 1)
1052 "Warning: systemd passed more than one socket to Emacs.\n"
1053 "Try 'Accept=false' in the Emacs socket unit file.\n"));
1054 else if (systemd_socket
== 1
1055 && (0 < sd_is_socket (SD_LISTEN_FDS_START
,
1056 AF_UNSPEC
, SOCK_STREAM
, 1)))
1057 sockfd
= SD_LISTEN_FDS_START
;
1058 #endif /* HAVE_LIBSYSTEMD */
1061 fprintf (stderr
, "\nWarning: due to a long standing Gtk+ bug\nhttp://bugzilla.gnome.org/show_bug.cgi?id=85715\n\
1062 Emacs might crash when run in daemon mode and the X11 connection is unexpectedly lost.\n\
1063 Using an Emacs configured with --with-x-toolkit=lucid does not have this problem.\n");
1064 #endif /* USE_GTK */
1066 if (daemon_type
== 2)
1069 #ifndef DAEMON_MUST_EXEC
1072 #else /* DAEMON_MUST_EXEC */
1073 if (!dname_arg
|| !strchr (dname_arg
, '\n'))
1074 f
= fork (); /* in orig */
1076 f
= 0; /* in exec'd */
1077 #endif /* !DAEMON_MUST_EXEC */
1083 /* Close unused writing end of the pipe. */
1084 emacs_close (daemon_pipe
[1]);
1086 /* Just wait for the child to close its end of the pipe. */
1089 retval
= read (daemon_pipe
[0], &buf
, 1);
1091 while (retval
== -1 && errno
== EINTR
);
1095 fprintf (stderr
, "Error reading status from child\n");
1098 else if (retval
== 0)
1100 fprintf (stderr
, "Error: server did not start correctly\n");
1104 emacs_close (daemon_pipe
[0]);
1109 emacs_perror ("fork");
1110 exit (EXIT_CANCELED
);
1113 #ifdef DAEMON_MUST_EXEC
1115 /* In orig process, forked as child, OR in exec'd. */
1116 if (!dname_arg
|| !strchr (dname_arg
, '\n'))
1117 { /* In orig, child: now exec w/special daemon name. */
1120 snprintf (fdStr
, sizeof fdStr
,
1121 "--old-daemon=\n%d,%d\n%s", daemon_pipe
[0],
1122 daemon_pipe
[1], dname_arg
? dname_arg
: "");
1124 if (! (0 <= fdStrlen
&& fdStrlen
< sizeof fdStr
))
1126 fprintf (stderr
, "daemon: child name too long\n");
1127 exit (EXIT_CANNOT_INVOKE
);
1130 argv
[skip_args
] = fdStr
;
1132 fcntl (daemon_pipe
[0], F_SETFD
, 0);
1133 fcntl (daemon_pipe
[1], F_SETFD
, 0);
1134 execvp (argv
[0], argv
);
1135 emacs_perror (argv
[0]);
1136 exit (errno
== ENOENT
? EXIT_ENOENT
: EXIT_CANNOT_INVOKE
);
1139 /* In exec'd: parse special dname into pipe and name info. */
1140 if (!dname_arg
|| !strchr (dname_arg
, '\n')
1141 || strlen (dname_arg
) < 1 || strlen (dname_arg
) > 70)
1143 fprintf (stderr
, "emacs daemon: daemon name absent or too long\n");
1144 exit (EXIT_CANNOT_INVOKE
);
1146 dname_arg2
[0] = '\0';
1147 sscanf (dname_arg
, "\n%d,%d\n%s", &(daemon_pipe
[0]), &(daemon_pipe
[1]),
1149 dname_arg
= *dname_arg2
? dname_arg2
: NULL
;
1150 fcntl (daemon_pipe
[1], F_SETFD
, FD_CLOEXEC
);
1152 #endif /* DAEMON_MUST_EXEC */
1154 /* Close unused reading end of the pipe. */
1155 emacs_close (daemon_pipe
[0]);
1158 } /* daemon_type == 2 */
1159 #elif defined(WINDOWSNT)
1160 /* Indicate that we want daemon mode. */
1161 w32_daemon_event
= CreateEvent (NULL
, TRUE
, FALSE
, W32_DAEMON_EVENT
);
1162 if (w32_daemon_event
== NULL
)
1164 fprintf (stderr
, "Couldn't create MS-Windows event for daemon: %s\n",
1169 fprintf (stderr
, "This platform does not support daemon mode.\n");
1173 daemon_name
= xstrdup (dname_arg
);
1176 #if defined HAVE_PTHREAD && !defined SYSTEM_MALLOC \
1177 && !defined DOUG_LEA_MALLOC && !defined HYBRID_MALLOC
1178 # ifndef CANNOT_DUMP
1179 /* Do not make gmalloc thread-safe when creating bootstrap-emacs, as
1180 that causes an infinite recursive loop with FreeBSD. See
1181 Bug#14569. The part of this bug involving Cygwin is no longer
1182 relevant, now that Cygwin defines HYBRID_MALLOC. */
1183 if (!noninteractive
|| initialized
)
1185 malloc_enable_thread ();
1188 init_signals (dumping
);
1190 noninteractive1
= noninteractive
;
1192 /* Perform basic initializations (not merely interning symbols). */
1199 init_charset_once ();
1200 init_coding_once ();
1201 init_syntax_once (); /* Create standard syntax table. */
1202 init_category_once (); /* Create standard category table. */
1203 init_casetab_once (); /* Must be done before init_buffer_once. */
1204 init_buffer_once (); /* Create buffer table and some buffers. */
1205 init_minibuf_once (); /* Create list of minibuffers. */
1206 /* Must precede init_window_once. */
1208 /* Call syms_of_xfaces before init_window_once because that
1209 function creates Vterminal_frame. Termcap frames now use
1210 faces, and the face implementation uses some symbols as
1213 /* XXX syms_of_keyboard uses some symbols in keymap.c. It would
1214 be better to arrange things not to have this dependency. */
1216 /* Call syms_of_keyboard before init_window_once because
1217 keyboard sets up symbols that include some face names that
1218 the X support will want to use. This can happen when
1219 CANNOT_DUMP is defined. */
1220 syms_of_keyboard ();
1222 /* Called before syms_of_fileio, because it sets up Qerror_condition. */
1224 syms_of_fns (); /* Before syms_of_charset which uses hash tables. */
1226 /* Before syms_of_coding to initialize Vgc_cons_threshold. */
1228 /* May call Ffuncall and so GC, thus the latter should be initialized. */
1230 /* Before syms_of_coding because it initializes Qcharsetp. */
1232 /* Before init_window_once, because it sets up the
1233 Vcoding_system_hash_table. */
1234 syms_of_coding (); /* This should be after syms_of_fileio. */
1236 init_window_once (); /* Init the window system. */
1237 #ifdef HAVE_WINDOW_SYSTEM
1238 init_fringe_once (); /* Swap bitmaps if necessary. */
1239 #endif /* HAVE_WINDOW_SYSTEM */
1244 if (do_initial_setlocale
)
1247 Vsystem_messages_locale
= Vprevious_system_messages_locale
;
1248 Vsystem_time_locale
= Vprevious_system_time_locale
;
1253 running_asynch_code
= 0;
1257 = argmatch (argv
, argc
, "-nl", "--no-loadup", 6, NULL
, &skip_args
);
1260 = argmatch (argv
, argc
, "-nsl", "--no-site-lisp", 11, NULL
, &skip_args
);
1262 build_details
= ! argmatch (argv
, argc
, "-no-build-details",
1263 "--no-build-details", 7, NULL
, &skip_args
);
1266 ns_pool
= ns_alloc_autorelease_pool ();
1267 #ifdef NS_IMPL_GNUSTEP
1268 /* GNUstep stupidly resets our locale settings after we made them. */
1272 if (!noninteractive
)
1274 #ifdef NS_IMPL_COCOA
1275 /* Started from GUI? */
1276 /* FIXME: Do the right thing if getenv returns NULL, or if
1278 if (! inhibit_window_system
&& ! isatty (STDIN_FILENO
) && ! ch_to_dir
)
1279 chdir (getenv ("HOME"));
1280 if (skip_args
< argc
)
1282 if (!strncmp (argv
[skip_args
], "-psn", 4))
1285 if (! ch_to_dir
) chdir (getenv ("HOME"));
1287 else if (skip_args
+1 < argc
&& !strncmp (argv
[skip_args
+1], "-psn", 4))
1290 if (! ch_to_dir
) chdir (getenv ("HOME"));
1295 #endif /* HAVE_NS */
1297 #ifdef HAVE_X_WINDOWS
1298 /* Stupid kludge to catch command-line display spec. We can't
1299 handle this argument entirely in window system dependent code
1300 because we don't even know which window system dependent code
1301 to run until we've recognized this argument. */
1303 char *displayname
= 0;
1304 int count_before
= skip_args
;
1306 /* Skip any number of -d options, but only use the last one. */
1309 int count_before_this
= skip_args
;
1311 if (argmatch (argv
, argc
, "-d", "--display", 3, &displayname
, &skip_args
))
1313 else if (argmatch (argv
, argc
, "-display", 0, 3, &displayname
, &skip_args
))
1318 count_before
= count_before_this
;
1321 /* If we have the form --display=NAME,
1322 convert it into -d name.
1323 This requires inserting a new element into argv. */
1324 if (displayname
&& count_before
< skip_args
)
1326 if (skip_args
== count_before
+ 1)
1328 memmove (argv
+ count_before
+ 3, argv
+ count_before
+ 2,
1329 (argc
- (count_before
+ 2)) * sizeof *argv
);
1330 argv
[count_before
+ 2] = displayname
;
1333 argv
[count_before
+ 1] = (char *) "-d";
1338 if (argmatch (argv
, argc
, "-Q", "--quick", 3, NULL
, &skip_args
)
1339 || argmatch (argv
, argc
, "-quick", 0, 2, NULL
, &skip_args
))
1343 /* Don't actually discard this arg. */
1344 skip_args
= count_before
;
1346 #else /* !HAVE_X_WINDOWS */
1349 int count_before
= skip_args
;
1351 if (argmatch (argv
, argc
, "-Q", "--quick", 3, NULL
, &skip_args
)
1352 || argmatch (argv
, argc
, "-quick", 0, 2, NULL
, &skip_args
))
1355 skip_args
= count_before
;
1359 /* argmatch must not be used after here,
1360 except when building temacs
1361 because the -d argument has not been skipped in skip_args. */
1364 /* Call early 'cause init_environment needs it. */
1366 /* Set defaults for several environment variables. */
1368 init_environment (argc
, argv
, skip_args
);
1374 globals_of_kqueue ();
1377 #ifdef HAVE_GFILENOTIFY
1378 globals_of_gfilenotify ();
1382 /* Initialize the locale from user defaults. */
1386 /* Initialize and GC-protect Vinitial_environment and
1387 Vprocess_environment before set_initial_environment fills them
1390 syms_of_callproc ();
1391 /* egetenv is a pretty low-level facility, which may get called in
1392 many circumstances; it seems flimsy to put off initializing it
1393 until calling init_callproc. Do not do it when dumping. */
1395 set_initial_environment ();
1399 #ifdef HAVE_W32NOTIFY
1400 globals_of_w32notify ();
1402 /* Initialize environment from registry settings. Make sure to do
1403 this only after calling set_initial_environment so that
1404 Vinitial_environment and Vprocess_environment will contain only
1405 variables from the parent process without modifications from
1407 init_environment (argv
);
1408 init_ntproc (dumping
); /* must precede init_editfns. */
1411 /* AIX crashes are reported in system versions 3.2.3 and 3.2.4
1412 if this is not done. Do it after set_global_environment so that we
1413 don't pollute Vglobal_environment. */
1414 /* Setting LANG here will defeat the startup locale processing... */
1419 /* Init buffer storage and default directory of main buffer. */
1420 init_buffer (initialized
);
1422 init_callproc_1 (); /* Must precede init_cmdargs and init_sys_modes. */
1424 /* Must precede init_lread. */
1425 init_cmdargs (argc
, argv
, skip_args
, original_pwd
);
1429 /* Erase any pre-dump messages in the message log, to avoid confusion. */
1430 Lisp_Object old_log_max
;
1431 old_log_max
= Vmessage_log_max
;
1432 XSETFASTINT (Vmessage_log_max
, 0);
1433 message_dolog ("", 0, 1, 0);
1434 Vmessage_log_max
= old_log_max
;
1437 init_callproc (); /* Must follow init_cmdargs but not init_sys_modes. */
1441 /* Check to see if Emacs has been installed correctly. */
1442 check_windows_init_file ();
1445 /* Intern the names of all standard functions and variables;
1446 define standard keys. */
1450 /* The basic levels of Lisp must come first. Note that
1451 syms_of_data and some others have already been called. */
1456 syms_of_floatfns ();
1459 syms_of_bytecode ();
1461 syms_of_casefiddle ();
1463 syms_of_category ();
1465 syms_of_character ();
1472 syms_of_filelock ();
1475 /* syms_of_keymap (); */
1483 syms_of_terminal ();
1494 syms_of_textprop ();
1495 syms_of_composite ();
1498 #endif /* WINDOWSNT */
1505 #ifdef HAVE_WINDOW_SYSTEM
1508 #endif /* HAVE_WINDOW_SYSTEM */
1509 #ifdef HAVE_X_WINDOWS
1515 syms_of_xsettings ();
1522 #endif /* HAVE_X_WINDOWS */
1529 syms_of_decompress ();
1539 #endif /* HAVE_NTGUI */
1541 #if defined WINDOWSNT || defined HAVE_NTGUI
1542 syms_of_w32select ();
1549 syms_of_win16select ();
1556 syms_of_nsselect ();
1558 #endif /* HAVE_NS */
1564 #endif /* HAVE_INOTIFY */
1568 #endif /* HAVE_KQUEUE */
1570 #ifdef HAVE_GFILENOTIFY
1571 syms_of_gfilenotify ();
1572 #endif /* HAVE_GFILENOTIFY */
1575 syms_of_dbusbind ();
1576 #endif /* HAVE_DBUS */
1580 #ifdef HAVE_W32NOTIFY
1581 syms_of_w32notify ();
1582 #endif /* HAVE_W32NOTIFY */
1583 #endif /* WINDOWSNT */
1585 syms_of_profiler ();
1587 keys_of_casefiddle ();
1590 keys_of_keyboard ();
1596 /* Initialization that must be done even if the global variable
1597 initialized is non zero. */
1599 globals_of_w32font ();
1600 globals_of_w32fns ();
1601 globals_of_w32menu ();
1602 #endif /* HAVE_NTGUI */
1604 #if defined WINDOWSNT || defined HAVE_NTGUI
1605 globals_of_w32select ();
1611 /* This calls putenv and so must precede init_process_emacs. Also,
1612 it sets Voperating_system_release, which init_process_emacs uses. */
1613 init_editfns (dumping
);
1615 /* These two call putenv. */
1623 /* This can create a thread that may call getenv, so it must follow
1624 all calls to putenv and setenv. Also, this sets up
1625 add_keyboard_wait_descriptor, which init_display uses. */
1626 init_process_emacs (sockfd
);
1628 init_keyboard (); /* This too must precede init_sys_modes. */
1629 if (!noninteractive
)
1630 init_display (); /* Determine terminal type. Calls init_sys_modes. */
1633 init_crit (); /* w32notify.c needs this in batch mode. */
1634 #endif /* HAVE_W32NOTIFY */
1636 #ifdef HAVE_WINDOW_SYSTEM
1638 #endif /* HAVE_WINDOW_SYSTEM */
1646 /* Handle -l loadup, args passed by Makefile. */
1647 if (argmatch (argv
, argc
, "-l", "--load", 3, &file
, &skip_args
))
1650 char file_utf8
[MAX_UTF8_PATH
];
1652 if (filename_from_ansi (file
, file_utf8
) == 0)
1655 Vtop_level
= list2 (Qload
, build_unibyte_string (file
));
1657 /* Unless next switch is -nl, load "loadup.el" first thing. */
1659 Vtop_level
= list2 (Qload
, build_string ("loadup.el"));
1662 /* Set up for profiling. This is known to work on FreeBSD,
1663 GNU/Linux and MinGW. It might work on some other systems too.
1664 Give it a try and tell us if it works on your system. To compile
1665 for profiling, use the configure option --enable-profiling. */
1666 #if defined (__FreeBSD__) || defined (GNU_LINUX) || defined (__MINGW32__)
1671 extern unsigned char etext
asm ("etext");
1677 monstartup ((uintptr_t) __executable_start
, (uintptr_t) &etext
);
1686 /* Enter editor command loop. This never returns. */
1692 /* Sort the args so we can find the most important ones
1693 at the beginning of argv. */
1695 /* First, here's a table of all the standard options. */
1697 struct standard_args
1700 const char *longname
;
1705 static const struct standard_args standard_args
[] =
1707 { "-version", "--version", 150, 0 },
1708 { "-chdir", "--chdir", 130, 1 },
1709 { "-t", "--terminal", 120, 1 },
1710 { "-nw", "--no-window-system", 110, 0 },
1711 { "-nw", "--no-windows", 110, 0 },
1712 { "-batch", "--batch", 100, 0 },
1713 { "-script", "--script", 100, 1 },
1714 { "-daemon", "--daemon", 99, 0 },
1715 { "-old-daemon", "--old-daemon", 99, 0 },
1716 { "-new-daemon", "--new-daemon", 99, 0 },
1717 { "-help", "--help", 90, 0 },
1718 { "-nl", "--no-loadup", 70, 0 },
1719 { "-nsl", "--no-site-lisp", 65, 0 },
1720 { "-no-build-details", "--no-build-details", 63, 0 },
1721 /* -d must come last before the options handled in startup.el. */
1722 { "-d", "--display", 60, 1 },
1723 { "-display", 0, 60, 1 },
1724 /* Now for the options handled in `command-line' (startup.el). */
1725 /* (Note that to imply -nsl, -Q is partially handled here.) */
1726 { "-Q", "--quick", 55, 0 },
1727 { "-quick", 0, 55, 0 },
1728 { "-q", "--no-init-file", 50, 0 },
1729 { "-no-init-file", 0, 50, 0 },
1730 { "-no-x-resources", "--no-x-resources", 40, 0 },
1731 { "-no-site-file", "--no-site-file", 40, 0 },
1732 { "-u", "--user", 30, 1 },
1733 { "-user", 0, 30, 1 },
1734 { "-debug-init", "--debug-init", 20, 0 },
1735 { "-iconic", "--iconic", 15, 0 },
1736 { "-D", "--basic-display", 12, 0},
1737 { "-basic-display", 0, 12, 0},
1738 { "-nbc", "--no-blinking-cursor", 12, 0 },
1739 /* Now for the options handled in `command-line-1' (startup.el). */
1740 { "-nbi", "--no-bitmap-icon", 10, 0 },
1741 { "-bg", "--background-color", 10, 1 },
1742 { "-background", 0, 10, 1 },
1743 { "-fg", "--foreground-color", 10, 1 },
1744 { "-foreground", 0, 10, 1 },
1745 { "-bd", "--border-color", 10, 1 },
1746 { "-bw", "--border-width", 10, 1 },
1747 { "-ib", "--internal-border", 10, 1 },
1748 { "-ms", "--mouse-color", 10, 1 },
1749 { "-cr", "--cursor-color", 10, 1 },
1750 { "-fn", "--font", 10, 1 },
1751 { "-font", 0, 10, 1 },
1752 { "-fs", "--fullscreen", 10, 0 },
1753 { "-fw", "--fullwidth", 10, 0 },
1754 { "-fh", "--fullheight", 10, 0 },
1755 { "-mm", "--maximized", 10, 0 },
1756 { "-g", "--geometry", 10, 1 },
1757 { "-geometry", 0, 10, 1 },
1758 { "-T", "--title", 10, 1 },
1759 { "-title", 0, 10, 1 },
1760 { "-name", "--name", 10, 1 },
1761 { "-xrm", "--xrm", 10, 1 },
1762 { "-parent-id", "--parent-id", 10, 1 },
1763 { "-r", "--reverse-video", 5, 0 },
1765 { "-reverse", 0, 5, 0 },
1766 { "-hb", "--horizontal-scroll-bars", 5, 0 },
1767 { "-vb", "--vertical-scroll-bars", 5, 0 },
1768 { "-color", "--color", 5, 0},
1769 { "-no-splash", "--no-splash", 3, 0 },
1770 { "-no-desktop", "--no-desktop", 3, 0 },
1772 { "-NSAutoLaunch", 0, 5, 1 },
1773 { "-NXAutoLaunch", 0, 5, 1 },
1774 { "-_NSMachLaunch", 0, 85, 1 },
1775 { "-MachLaunch", 0, 85, 1 },
1776 { "-macosx", 0, 85, 0 },
1777 { "-NSHost", 0, 85, 1 },
1779 /* These have the same priority as ordinary file name args,
1780 so they are not reordered with respect to those. */
1781 { "-L", "--directory", 0, 1 },
1782 { "-directory", 0, 0, 1 },
1783 { "-l", "--load", 0, 1 },
1784 { "-load", 0, 0, 1 },
1785 /* This has no longname, because using --scriptload confuses sort_args,
1786 because then the --script long option seems to match twice; ie
1787 you can't have a long option which is a prefix of another long
1788 option. In any case, this is entirely an internal option. */
1789 { "-scriptload", NULL
, 0, 1 },
1790 { "-f", "--funcall", 0, 1 },
1791 { "-funcall", 0, 0, 1 },
1792 { "-eval", "--eval", 0, 1 },
1793 { "-execute", "--execute", 0, 1 },
1794 { "-find-file", "--find-file", 0, 1 },
1795 { "-visit", "--visit", 0, 1 },
1796 { "-file", "--file", 0, 1 },
1797 { "-insert", "--insert", 0, 1 },
1799 { "-NXOpen", 0, 0, 1 },
1800 { "-NXOpenTemp", 0, 0, 1 },
1801 { "-NSOpen", 0, 0, 1 },
1802 { "-NSOpenTemp", 0, 0, 1 },
1803 { "-GSFilePath", 0, 0, 1 },
1805 /* This should be processed after ordinary file name args and the like. */
1806 { "-kill", "--kill", -10, 0 },
1809 /* Reorder the elements of ARGV (assumed to have ARGC elements)
1810 so that the highest priority ones come first.
1811 Do not change the order of elements of equal priority.
1812 If an option takes an argument, keep it and its argument together.
1814 If an option that takes no argument appears more
1815 than once, eliminate all but one copy of it. */
1818 sort_args (int argc
, char **argv
)
1820 char **new = xmalloc (argc
* sizeof *new);
1821 /* For each element of argv,
1822 the corresponding element of options is:
1823 0 for an option that takes no arguments,
1824 1 for an option that takes one argument, etc.
1825 -1 for an ordinary non-option argument. */
1826 int *options
= xnmalloc (argc
, sizeof *options
);
1827 int *priority
= xnmalloc (argc
, sizeof *priority
);
1829 int incoming_used
= 1;
1833 /* Categorize all the options,
1834 and figure out which argv elts are option arguments. */
1835 for (from
= 1; from
< argc
; from
++)
1839 if (argv
[from
][0] == '-')
1843 /* If we have found "--", don't consider
1844 any more arguments as options. */
1845 if (argv
[from
][1] == '-' && argv
[from
][2] == 0)
1847 /* Leave the "--", and everything following it, at the end. */
1848 for (; from
< argc
; from
++)
1850 priority
[from
] = -100;
1856 /* Look for a match with a known old-fashioned option. */
1857 for (i
= 0; i
< ARRAYELTS (standard_args
); i
++)
1858 if (!strcmp (argv
[from
], standard_args
[i
].name
))
1860 options
[from
] = standard_args
[i
].nargs
;
1861 priority
[from
] = standard_args
[i
].priority
;
1862 if (from
+ standard_args
[i
].nargs
>= argc
)
1863 fatal ("Option '%s' requires an argument\n", argv
[from
]);
1864 from
+= standard_args
[i
].nargs
;
1868 /* Look for a match with a known long option.
1869 MATCH is -1 if no match so far, -2 if two or more matches so far,
1870 >= 0 (the table index of the match) if just one match so far. */
1871 if (argv
[from
][1] == '-')
1873 char const *equals
= strchr (argv
[from
], '=');
1875 equals
? equals
- argv
[from
] : strlen (argv
[from
]);
1879 for (i
= 0; i
< ARRAYELTS (standard_args
); i
++)
1880 if (standard_args
[i
].longname
1881 && !strncmp (argv
[from
], standard_args
[i
].longname
,
1890 /* If we found exactly one match, use that. */
1893 options
[from
] = standard_args
[match
].nargs
;
1894 priority
[from
] = standard_args
[match
].priority
;
1895 /* If --OPTION=VALUE syntax is used,
1896 this option uses just one argv element. */
1899 if (from
+ options
[from
] >= argc
)
1900 fatal ("Option '%s' requires an argument\n", argv
[from
]);
1901 from
+= options
[from
];
1903 else if (match
== -2)
1905 /* This is an internal error.
1906 Eg if one long option is a prefix of another. */
1907 fprintf (stderr
, "Option '%s' matched multiple standard arguments\n", argv
[from
]);
1909 /* Should we not also warn if there was no match? */
1915 /* Copy the arguments, in order of decreasing priority, to NEW. */
1917 while (incoming_used
< argc
)
1920 int best_priority
= -9999;
1922 /* Find the highest priority remaining option.
1923 If several have equal priority, take the first of them. */
1924 for (from
= 1; from
< argc
; from
++)
1926 if (argv
[from
] != 0 && priority
[from
] > best_priority
)
1928 best_priority
= priority
[from
];
1931 /* Skip option arguments--they are tied to the options. */
1932 if (options
[from
] > 0)
1933 from
+= options
[from
];
1939 /* Copy the highest priority remaining option, with its args, to NEW.
1940 Unless it is a duplicate of the previous one. */
1941 if (! (options
[best
] == 0
1942 && ! strcmp (new[to
- 1], argv
[best
])))
1944 new[to
++] = argv
[best
];
1945 for (i
= 0; i
< options
[best
]; i
++)
1946 new[to
++] = argv
[best
+ i
+ 1];
1949 incoming_used
+= 1 + (options
[best
] > 0 ? options
[best
] : 0);
1951 /* Clear out this option in ARGV. */
1953 for (i
= 0; i
< options
[best
]; i
++)
1954 argv
[best
+ i
+ 1] = 0;
1957 /* If duplicate options were deleted, fill up extra space with null ptrs. */
1961 memcpy (argv
, new, sizeof (char *) * argc
);
1968 DEFUN ("kill-emacs", Fkill_emacs
, Skill_emacs
, 0, 1, "P",
1969 doc
: /* Exit the Emacs job and kill it.
1970 If ARG is an integer, return ARG as the exit program code.
1971 If ARG is a string, stuff it as keyboard input.
1973 This function is called upon receipt of the signals SIGTERM
1974 or SIGHUP, and upon SIGINT in batch mode.
1976 The value of `kill-emacs-hook', if not void,
1977 is a list of functions (of no args),
1978 all of which are called before Emacs is actually killed. */
1979 attributes
: noreturn
)
1984 /* Fsignal calls emacs_abort () if it sees that waiting_for_input is
1986 waiting_for_input
= 0;
1987 run_hook (Qkill_emacs_hook
);
1989 #ifdef HAVE_X_WINDOWS
1990 /* Transfer any clipboards we own to the clipboard manager. */
1991 x_clipboard_manager_save_all ();
1994 shut_down_emacs (0, (STRINGP (arg
) && !feof (stdin
)) ? arg
: Qnil
);
1997 ns_release_autorelease_pool (ns_pool
);
2000 /* If we have an auto-save list file,
2001 kill it because we are exiting Emacs deliberately (not crashing).
2002 Do it after shut_down_emacs, which does an auto-save. */
2003 if (STRINGP (Vauto_save_list_file_name
))
2005 Lisp_Object listfile
;
2006 listfile
= Fexpand_file_name (Vauto_save_list_file_name
, Qnil
);
2007 unlink (SSDATA (listfile
));
2011 exit_code
= (XINT (arg
) < 0
2012 ? XINT (arg
) | INT_MIN
2013 : XINT (arg
) & INT_MAX
);
2015 exit_code
= EXIT_SUCCESS
;
2020 /* Perform an orderly shutdown of Emacs. Autosave any modified
2021 buffers, kill any child processes, clean up the terminal modes (if
2022 we're in the foreground), and other stuff like that. Don't perform
2023 any redisplay; this may be called when Emacs is shutting down in
2024 the background, or after its X connection has died.
2026 If SIG is a signal number, print a message for it.
2028 This is called by fatal signal handlers, X protocol error handlers,
2032 shut_down_emacs (int sig
, Lisp_Object stuff
)
2034 /* Prevent running of hooks from now on. */
2037 /* Don't update display from now on. */
2038 Vinhibit_redisplay
= Qt
;
2040 /* If we are controlling the terminal, reset terminal modes. */
2043 pid_t pgrp
= getpgrp ();
2044 pid_t tpgrp
= tcgetpgrp (0);
2045 if ((tpgrp
!= -1) && tpgrp
== pgrp
)
2047 reset_all_sys_modes ();
2048 if (sig
&& sig
!= SIGTERM
)
2050 static char const format
[] = "Fatal error %d: ";
2051 char buf
[sizeof format
- 2 + INT_STRLEN_BOUND (int)];
2052 int buflen
= sprintf (buf
, format
, sig
);
2053 char const *sig_desc
= safe_strsignal (sig
);
2054 emacs_write (STDERR_FILENO
, buf
, buflen
);
2055 emacs_write (STDERR_FILENO
, sig_desc
, strlen (sig_desc
));
2061 reset_all_sys_modes ();
2064 stuff_buffered_input (stuff
);
2066 inhibit_sentinels
= 1;
2067 kill_buffer_processes (Qnil
);
2068 Fdo_auto_save (Qt
, Qnil
);
2070 unlock_all_files ();
2072 /* There is a tendency for a SIGIO signal to arrive within exit,
2073 and cause a SIGHUP because the input descriptor is already closed. */
2076 /* Do this only if terminating normally, we want glyph matrices
2077 etc. in a core dump. */
2078 if (sig
== 0 || sig
== SIGTERM
)
2080 check_glyph_memory ();
2081 check_message_stack ();
2089 ns_term_shutdown (sig
);
2093 xml_cleanup_parser ();
2107 DEFUN ("dump-emacs", Fdump_emacs
, Sdump_emacs
, 2, 2, 0,
2108 doc
: /* Dump current state of Emacs into executable file FILENAME.
2109 Take symbols from SYMFILE (presumably the file you executed to run Emacs).
2110 This is used in the file `loadup.el' when building Emacs.
2112 You must run Emacs in batch mode in order to dump it. */)
2113 (Lisp_Object filename
, Lisp_Object symfile
)
2117 ptrdiff_t count
= SPECPDL_INDEX ();
2121 if (! noninteractive
)
2122 error ("Dumping Emacs works only in batch mode");
2125 error ("Emacs can be dumped only once");
2127 #if defined GNU_LINUX && !defined CANNOT_DUMP
2129 /* Warn if the gap between BSS end and heap start is larger than this. */
2130 # define MAX_HEAP_BSS_DIFF (1024*1024)
2132 if (heap_bss_diff
> MAX_HEAP_BSS_DIFF
)
2134 fprintf (stderr
, "**************************************************\n");
2135 fprintf (stderr
, "Warning: Your system has a gap between BSS and the\n");
2136 fprintf (stderr
, "heap (%"pMu
" bytes). This usually means that exec-shield\n",
2138 fprintf (stderr
, "or something similar is in effect. The dump may\n");
2139 fprintf (stderr
, "fail because of this. See the section about\n");
2140 fprintf (stderr
, "exec-shield in etc/PROBLEMS for more information.\n");
2141 fprintf (stderr
, "**************************************************\n");
2143 #endif /* GNU_LINUX */
2145 /* Bind `command-line-processed' to nil before dumping,
2146 so that the dumped Emacs will process its command line
2147 and set up to work with X windows if appropriate. */
2148 symbol
= intern ("command-line-processed");
2149 specbind (symbol
, Qnil
);
2151 CHECK_STRING (filename
);
2152 filename
= Fexpand_file_name (filename
, Qnil
);
2153 filename
= ENCODE_FILE (filename
);
2154 if (!NILP (symfile
))
2156 CHECK_STRING (symfile
);
2157 if (SCHARS (symfile
))
2159 symfile
= Fexpand_file_name (symfile
, Qnil
);
2160 symfile
= ENCODE_FILE (symfile
);
2165 Vpurify_flag
= Qnil
;
2167 #ifdef HYBRID_MALLOC
2169 static char const fmt
[] = "%d of %d static heap bytes used";
2170 char buf
[sizeof fmt
+ 2 * (INT_STRLEN_BOUND (int) - 2)];
2171 int max_usage
= max_bss_sbrk_ptr
- bss_sbrk_buffer
;
2172 sprintf (buf
, fmt
, max_usage
, STATIC_HEAP_SIZE
);
2173 /* Don't log messages, because at this point buffers cannot be created. */
2174 message1_nolog (buf
);
2179 /* Tell malloc where start of impure now is. */
2180 /* Also arrange for warnings when nearly out of space. */
2181 #if !defined SYSTEM_MALLOC && !defined HYBRID_MALLOC
2183 /* On Windows, this was done before dumping, and that once suffices.
2184 Meanwhile, my_edata is not valid on Windows. */
2185 memory_warnings (my_edata
, malloc_warning
);
2186 #endif /* not WINDOWSNT */
2187 #endif /* not SYSTEM_MALLOC and not HYBRID_MALLOC */
2189 alloc_unexec_pre ();
2191 unexec (SSDATA (filename
), !NILP (symfile
) ? SSDATA (symfile
) : 0);
2193 alloc_unexec_post ();
2196 Vlibrary_cache
= Qnil
;
2198 #ifdef HAVE_WINDOW_SYSTEM
2199 reset_image_types ();
2204 return unbind_to (count
, Qnil
);
2207 #endif /* not CANNOT_DUMP */
2210 /* Recover from setlocale (LC_ALL, ""). */
2214 /* The Emacs Lisp reader needs LC_NUMERIC to be "C",
2215 so that numbers are read and printed properly for Emacs Lisp. */
2216 setlocale (LC_NUMERIC
, "C");
2219 /* Set system locale CATEGORY, with previous locale *PLOCALE, to
2222 synchronize_locale (int category
, Lisp_Object
*plocale
, Lisp_Object desired_locale
)
2224 if (! EQ (*plocale
, desired_locale
))
2226 *plocale
= desired_locale
;
2228 /* Changing categories like LC_TIME usually requires specifying
2229 an encoding suitable for the new locale, but MS-Windows's
2230 'setlocale' will only switch the encoding when LC_ALL is
2231 specified. So we ignore CATEGORY, use LC_ALL instead, and
2232 then restore LC_NUMERIC to "C", so reading and printing
2233 numbers is unaffected. */
2234 setlocale (LC_ALL
, (STRINGP (desired_locale
)
2235 ? SSDATA (desired_locale
)
2238 #else /* !WINDOWSNT */
2239 setlocale (category
, (STRINGP (desired_locale
)
2240 ? SSDATA (desired_locale
)
2242 #endif /* !WINDOWSNT */
2246 /* Set system time locale to match Vsystem_time_locale, if possible. */
2248 synchronize_system_time_locale (void)
2250 synchronize_locale (LC_TIME
, &Vprevious_system_time_locale
,
2251 Vsystem_time_locale
);
2254 /* Set system messages locale to match Vsystem_messages_locale, if
2257 synchronize_system_messages_locale (void)
2260 synchronize_locale (LC_MESSAGES
, &Vprevious_system_messages_locale
,
2261 Vsystem_messages_locale
);
2264 #endif /* HAVE_SETLOCALE */
2266 /* Return a diagnostic string for ERROR_NUMBER, in the wording
2267 and encoding appropriate for the current locale. */
2269 emacs_strerror (int error_number
)
2271 synchronize_system_messages_locale ();
2272 return strerror (error_number
);
2277 decode_env_path (const char *evarname
, const char *defalt
, bool empty
)
2279 const char *path
, *p
;
2280 Lisp_Object lpath
, element
, tem
;
2281 /* Default is to use "." for empty path elements.
2282 But if argument EMPTY is true, use nil instead. */
2283 Lisp_Object empty_element
= empty
? Qnil
: build_string (".");
2286 static const char *emacs_dir_env
= "%emacs_dir%/";
2287 const size_t emacs_dir_len
= strlen (emacs_dir_env
);
2288 const char *edir
= egetenv ("emacs_dir");
2289 char emacs_dir
[MAX_UTF8_PATH
];
2291 /* egetenv looks in process-environment, which holds the variables
2292 in their original system-locale encoding. We need emacs_dir to
2295 filename_from_ansi (edir
, emacs_dir
);
2298 /* It's okay to use getenv here, because this function is only used
2299 to initialize variables when Emacs starts up, and isn't called
2302 path
= getenv (evarname
);
2313 /* Ensure values from the environment use the proper directory separator. */
2319 char *path_utf8
, *q
, *d
;
2322 /* Convert each element of PATH to UTF-8. */
2323 p
= path_copy
= alloca (strlen (path
) + 1);
2324 strcpy (path_copy
, path
);
2325 d
= path_utf8
= alloca (4 * strlen (path
) + 1);
2328 q
= _mbschr (p
, SEPCHAR
);
2331 cnv_result
= filename_from_ansi (p
, d
);
2336 /* If conversion of this PATH elements fails, make sure
2337 destination pointer will stay put, thus effectively
2338 ignoring the offending element. */
2339 if (cnv_result
== 0)
2345 else if (cnv_result
!= 0 && d
> path_utf8
)
2346 d
[-1] = '\0'; /* remove last semi-colon and null-terminate PATH */
2348 path_copy
= path_utf8
;
2350 path_copy
= alloca (strlen (path
) + 1);
2351 strcpy (path_copy
, path
);
2353 dostounix_filename (path_copy
);
2360 p
= strchr (path
, SEPCHAR
);
2362 p
= path
+ strlen (path
);
2363 element
= ((p
- path
) ? make_unibyte_string (path
, p
- path
)
2365 if (! NILP (element
))
2368 /* Relative file names in the default path are interpreted as
2369 being relative to $emacs_dir. */
2370 if (edir
&& defaulted
2371 && strncmp (path
, emacs_dir_env
, emacs_dir_len
) == 0)
2372 element
= Fexpand_file_name (Fsubstring
2374 make_number (emacs_dir_len
),
2376 build_unibyte_string (emacs_dir
));
2379 /* Add /: to the front of the name
2380 if it would otherwise be treated as magic. */
2381 tem
= Ffind_file_name_handler (element
, Qt
);
2383 /* However, if the handler says "I'm safe",
2384 don't bother adding /:. */
2388 prop
= Fget (tem
, intern ("safe-magic"));
2395 AUTO_STRING (slash_colon
, "/:");
2396 element
= concat2 (slash_colon
, element
);
2398 } /* !NILP (element) */
2400 lpath
= Fcons (element
, lpath
);
2406 return Fnreverse (lpath
);
2409 DEFUN ("daemonp", Fdaemonp
, Sdaemonp
, 0, 0, 0,
2410 doc
: /* Return non-nil if the current emacs process is a daemon.
2411 If the daemon was given a name argument, return that name. */)
2416 return build_string (daemon_name
);
2423 DEFUN ("daemon-initialized", Fdaemon_initialized
, Sdaemon_initialized
, 0, 0, 0,
2424 doc
: /* Mark the Emacs daemon as being initialized.
2425 This finishes the daemonization process by doing the other half of detaching
2426 from the parent process and its tty file descriptors. */)
2432 error ("This function can only be called if emacs is run as a daemon");
2434 if (!DAEMON_RUNNING
)
2435 error ("The daemon has already been initialized");
2437 if (NILP (Vafter_init_time
))
2438 error ("This function can only be called after loading the init files");
2441 if (daemon_type
== 2)
2445 /* Get rid of stdin, stdout and stderr. */
2446 nfd
= emacs_open ("/dev/null", O_RDWR
, 0);
2448 err
|= dup2 (nfd
, STDIN_FILENO
) < 0;
2449 err
|= dup2 (nfd
, STDOUT_FILENO
) < 0;
2450 err
|= dup2 (nfd
, STDERR_FILENO
) < 0;
2451 err
|= emacs_close (nfd
) != 0;
2453 /* Closing the pipe will notify the parent that it can exit.
2454 FIXME: In case some other process inherited the pipe, closing it here
2455 won't notify the parent because it's still open elsewhere, so we
2456 additionally send a byte, just to make sure the parent really exits.
2457 Instead, we should probably close the pipe in start-process and
2458 call-process to make sure the pipe is never inherited by
2460 err
|= write (daemon_pipe
[1], "\n", 1) < 0;
2461 err
|= emacs_close (daemon_pipe
[1]) != 0;
2464 /* Set it to an invalid value so we know we've already run this function. */
2467 #else /* WINDOWSNT */
2468 /* Signal the waiting emacsclient process. */
2469 err
|= SetEvent (w32_daemon_event
) == 0;
2470 err
|= CloseHandle (w32_daemon_event
) == 0;
2471 /* Set it to an invalid value so we know we've already run this function. */
2472 w32_daemon_event
= INVALID_HANDLE_VALUE
;
2476 error ("I/O error during daemon initialization");
2481 syms_of_emacs (void)
2483 DEFSYM (Qfile_name_handler_alist
, "file-name-handler-alist");
2484 DEFSYM (Qrisky_local_variable
, "risky-local-variable");
2485 DEFSYM (Qkill_emacs
, "kill-emacs");
2486 DEFSYM (Qkill_emacs_hook
, "kill-emacs-hook");
2489 defsubr (&Sdump_emacs
);
2492 defsubr (&Skill_emacs
);
2494 defsubr (&Sinvocation_name
);
2495 defsubr (&Sinvocation_directory
);
2496 defsubr (&Sdaemonp
);
2497 defsubr (&Sdaemon_initialized
);
2499 DEFVAR_LISP ("command-line-args", Vcommand_line_args
,
2500 doc
: /* Args passed by shell to Emacs, as a list of strings.
2501 Many arguments are deleted from the list as they are processed. */);
2503 DEFVAR_LISP ("system-type", Vsystem_type
,
2504 doc
: /* The value is a symbol indicating the type of operating system you are using.
2506 `gnu' compiled for a GNU Hurd system.
2507 `gnu/linux' compiled for a GNU/Linux system.
2508 `gnu/kfreebsd' compiled for a GNU system with a FreeBSD kernel.
2509 `darwin' compiled for Darwin (GNU-Darwin, macOS, ...).
2510 `ms-dos' compiled as an MS-DOS application.
2511 `windows-nt' compiled as a native W32 application.
2512 `cygwin' compiled using the Cygwin library.
2513 Anything else (in Emacs 26, the possibilities are: aix, berkeley-unix,
2514 hpux, usg-unix-v) indicates some sort of Unix system. */);
2515 Vsystem_type
= intern_c_string (SYSTEM_TYPE
);
2516 /* See configure.ac for the possible SYSTEM_TYPEs. */
2518 DEFVAR_LISP ("system-configuration", Vsystem_configuration
,
2519 doc
: /* Value is string indicating configuration Emacs was built for. */);
2520 Vsystem_configuration
= build_string (EMACS_CONFIGURATION
);
2522 DEFVAR_LISP ("system-configuration-options", Vsystem_configuration_options
,
2523 doc
: /* String containing the configuration options Emacs was built with. */);
2524 Vsystem_configuration_options
= build_string (EMACS_CONFIG_OPTIONS
);
2526 DEFVAR_LISP ("system-configuration-features", Vsystem_configuration_features
,
2527 doc
: /* String listing some of the main features this Emacs was compiled with.
2528 An element of the form \"FOO\" generally means that HAVE_FOO was
2529 defined during the build.
2531 This is mainly intended for diagnostic purposes in bug reports.
2532 Don't rely on it for testing whether a feature you want to use is available. */);
2533 Vsystem_configuration_features
= build_string (EMACS_CONFIG_FEATURES
);
2535 DEFVAR_BOOL ("noninteractive", noninteractive1
,
2536 doc
: /* Non-nil means Emacs is running without interactive terminal. */);
2538 DEFVAR_LISP ("kill-emacs-hook", Vkill_emacs_hook
,
2539 doc
: /* Hook run when `kill-emacs' is called.
2540 Since `kill-emacs' may be invoked when the terminal is disconnected (or
2541 in other similar situations), functions placed on this hook should not
2542 expect to be able to interact with the user. To ask for confirmation,
2543 see `kill-emacs-query-functions' instead.
2545 Before Emacs 24.1, the hook was not run in batch mode, i.e., if
2546 `noninteractive' was non-nil. */);
2547 Vkill_emacs_hook
= Qnil
;
2549 DEFVAR_LISP ("path-separator", Vpath_separator
,
2550 doc
: /* String containing the character that separates directories in
2551 search paths, such as PATH and other similar environment variables. */);
2554 Vpath_separator
= make_string (&c
, 1);
2557 DEFVAR_LISP ("invocation-name", Vinvocation_name
,
2558 doc
: /* The program name that was used to run Emacs.
2559 Any directory names are omitted. */);
2561 DEFVAR_LISP ("invocation-directory", Vinvocation_directory
,
2562 doc
: /* The directory in which the Emacs executable was found, to run it.
2563 The value is nil if that directory's name is not known. */);
2565 DEFVAR_LISP ("installation-directory", Vinstallation_directory
,
2566 doc
: /* A directory within which to look for the `lib-src' and `etc' directories.
2567 In an installed Emacs, this is normally nil. It is non-nil if
2568 both `lib-src' (on MS-DOS, `info') and `etc' directories are found
2569 within the variable `invocation-directory' or its parent. For example,
2570 this is the case when running an uninstalled Emacs executable from its
2571 build directory. */);
2572 Vinstallation_directory
= Qnil
;
2574 DEFVAR_LISP ("system-messages-locale", Vsystem_messages_locale
,
2575 doc
: /* System locale for messages. */);
2576 Vsystem_messages_locale
= Qnil
;
2578 DEFVAR_LISP ("previous-system-messages-locale",
2579 Vprevious_system_messages_locale
,
2580 doc
: /* Most recently used system locale for messages. */);
2581 Vprevious_system_messages_locale
= Qnil
;
2583 DEFVAR_LISP ("system-time-locale", Vsystem_time_locale
,
2584 doc
: /* System locale for time. */);
2585 Vsystem_time_locale
= Qnil
;
2587 DEFVAR_LISP ("previous-system-time-locale", Vprevious_system_time_locale
,
2588 doc
: /* Most recently used system locale for time. */);
2589 Vprevious_system_time_locale
= Qnil
;
2591 DEFVAR_LISP ("before-init-time", Vbefore_init_time
,
2592 doc
: /* Value of `current-time' before Emacs begins initialization. */);
2593 Vbefore_init_time
= Qnil
;
2595 DEFVAR_LISP ("after-init-time", Vafter_init_time
,
2596 doc
: /* Value of `current-time' after loading the init files.
2597 This is nil during initialization. */);
2598 Vafter_init_time
= Qnil
;
2600 DEFVAR_BOOL ("inhibit-x-resources", inhibit_x_resources
,
2601 doc
: /* If non-nil, X resources, Windows Registry settings, and NS defaults are not used. */);
2602 inhibit_x_resources
= 0;
2604 DEFVAR_LISP ("emacs-copyright", Vemacs_copyright
,
2605 doc
: /* Short copyright string for this version of Emacs. */);
2606 Vemacs_copyright
= build_string (emacs_copyright
);
2608 DEFVAR_LISP ("emacs-version", Vemacs_version
,
2609 doc
: /* Version numbers of this version of Emacs. */);
2610 Vemacs_version
= build_string (emacs_version
);
2612 DEFVAR_LISP ("report-emacs-bug-address", Vreport_emacs_bug_address
,
2613 doc
: /* Address of mailing list for GNU Emacs bugs. */);
2614 Vreport_emacs_bug_address
= build_string (emacs_bugreport
);
2616 DEFVAR_LISP ("dynamic-library-alist", Vdynamic_library_alist
,
2617 doc
: /* Alist of dynamic libraries vs external files implementing them.
2618 Each element is a list (LIBRARY FILE...), where the car is a symbol
2619 representing a supported external library, and the rest are strings giving
2620 alternate filenames for that library.
2622 Emacs tries to load the library from the files in the order they appear on
2623 the list; if none is loaded, the running session of Emacs won't have access
2626 Note that image types `pbm' and `xbm' do not need entries in this variable
2627 because they do not depend on external libraries and are always available.
2629 Also note that this is not a generic facility for accessing external
2630 libraries; only those already known by Emacs will be loaded. */);
2631 Vdynamic_library_alist
= Qnil
;
2632 Fput (intern_c_string ("dynamic-library-alist"), Qrisky_local_variable
, Qt
);
2635 Vlibrary_cache
= Qnil
;
2636 staticpro (&Vlibrary_cache
);