1 /* Fully extensible Emacs, running on Unix, intended for GNU.
2 Copyright (C) 1985, 1986, 1987, 1993, 1994, 1995, 1997, 1998, 1999,
3 2001, 2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009
4 Free Software Foundation, Inc.
6 This file is part of GNU Emacs.
8 GNU Emacs is free software: you can redistribute it and/or modify
9 it under the terms of the GNU General Public License as published by
10 the Free Software Foundation, either version 3 of the License, or
11 (at your option) any later version.
13 GNU Emacs is distributed in the hope that it will be useful,
14 but WITHOUT ANY WARRANTY; without even the implied warranty of
15 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
16 GNU General Public License for more details.
18 You should have received a copy of the GNU General Public License
19 along with GNU Emacs. If not, see <http://www.gnu.org/licenses/>. */
27 #include <sys/types.h>
36 #include <sys/ioctl.h>
41 #include <windows.h> /* just for w32.h */
43 #include "w32heap.h" /* for prototype of sbrk */
46 #ifdef NS_IMPL_GNUSTEP
47 /* At least under Debian, GSConfig is in a subdirectory. --Stef */
48 #include <GNUstepBase/GSConfig.h>
53 #include "intervals.h"
58 #include "blockinput.h"
59 #include "syssignal.h"
62 #include "termhooks.h"
72 #include <sys/resource.h>
75 #ifdef HAVE_PERSONALITY_LINUX32
76 #include <sys/personality.h>
84 #if !defined (USG) || defined (BSD_PGRPS)
86 #define setpgrp setpgid
90 extern void malloc_warning
P_ ((char *));
91 extern void set_time_zone_rule
P_ ((char *));
93 extern char *index
P_ ((const char *, int));
96 /* Make these values available in GDB, which doesn't see macros. */
103 #ifndef USE_LISP_UNION_TYPE
104 int gdb_use_union
= 0;
106 int gdb_use_union
= 1;
108 EMACS_INT gdb_valbits
= VALBITS
;
109 EMACS_INT gdb_gctypebits
= GCTYPEBITS
;
110 #if defined (DATA_SEG_BITS) && ! defined (USE_LSB_TAG)
111 EMACS_INT gdb_data_seg_bits
= DATA_SEG_BITS
;
113 EMACS_INT gdb_data_seg_bits
= 0;
115 EMACS_INT PVEC_FLAG
= PSEUDOVECTOR_FLAG
;
116 EMACS_INT gdb_array_mark_flag
= ARRAY_MARK_FLAG
;
117 /* GDB might say "No enum type named pvec_type" if we don't have at
118 least one symbol with that type, and then xbacktrace could fail. */
119 enum pvec_type gdb_pvec_type
= PVEC_TYPE_MASK
;
121 /* Command line args from shell, as list of strings. */
122 Lisp_Object Vcommand_line_args
;
124 /* The name under which Emacs was invoked, with any leading directory
126 Lisp_Object Vinvocation_name
;
128 /* The directory name from which Emacs was invoked. */
129 Lisp_Object Vinvocation_directory
;
131 /* The directory name in which to find subdirs such as lisp and etc.
132 nil means get them only from PATH_LOADSEARCH. */
133 Lisp_Object Vinstallation_directory
;
135 /* The values of `current-time' before and after Emacs initialization. */
136 Lisp_Object Vbefore_init_time
, Vafter_init_time
;
138 /* Hook run by `kill-emacs' before it does really anything. */
139 Lisp_Object Vkill_emacs_hook
;
141 /* Empty lisp strings. To avoid having to build any others. */
142 Lisp_Object empty_unibyte_string
, empty_multibyte_string
;
144 /* Search path separator. */
145 Lisp_Object Vpath_separator
;
147 /* Set nonzero after Emacs has started up the first time.
148 Prevents reinitialization of the Lisp world and keymaps
149 on subsequent starts. */
152 #ifdef DOUG_LEA_MALLOC
153 /* Preserves a pointer to the memory allocated that copies that
154 static data inside glibc's malloc. */
155 void *malloc_state_ptr
;
156 /* From glibc, a routine that returns a copy of the malloc internal state. */
157 extern void *malloc_get_state ();
158 /* From glibc, a routine that overwrites the malloc internal state. */
159 extern int malloc_set_state ();
160 /* Non-zero if the MALLOC_CHECK_ enviroment variable was set while
161 dumping. Used to work around a bug in glibc's malloc. */
162 int malloc_using_checking
;
165 /* Variable whose value is symbol giving operating system type. */
166 Lisp_Object Vsystem_type
;
168 /* Variable whose value is string giving configuration built for. */
169 Lisp_Object Vsystem_configuration
;
171 /* Variable whose value is string giving configuration options,
172 for use when reporting bugs. */
173 Lisp_Object Vsystem_configuration_options
;
175 Lisp_Object Qfile_name_handler_alist
;
177 /* Current and previous system locales for messages and time. */
178 Lisp_Object Vsystem_messages_locale
;
179 Lisp_Object Vprevious_system_messages_locale
;
180 Lisp_Object Vsystem_time_locale
;
181 Lisp_Object Vprevious_system_time_locale
;
183 /* If non-zero, emacs should not attempt to use a window-specific code,
184 but instead should use the virtual terminal under which it was started. */
185 int inhibit_window_system
;
187 /* If nonzero, set Emacs to run at this priority. This is also used
188 in child_setup and sys_suspend to make sure subshells run at normal
189 priority; those functions have their own extern declaration. */
190 EMACS_INT emacs_priority
;
192 /* If non-zero, a filter or a sentinel is running. Tested to save the match
193 data on the first attempt to change it inside asynchronous code. */
194 int running_asynch_code
;
198 extern int inherited_pgroup
;
201 #if defined(HAVE_X_WINDOWS) || defined(HAVE_NS)
202 /* If non-zero, -d was specified, meaning we're using some window system. */
206 /* An address near the bottom of the stack.
207 Tells GC how to save a copy of the stack. */
210 /* The address where the heap starts (from the first sbrk (0) call). */
211 static void *my_heap_start
;
213 /* The gap between BSS end and heap start as far as we can tell. */
214 static unsigned long heap_bss_diff
;
216 /* If the gap between BSS end and heap start is larger than this
217 output a warning in dump-emacs. */
218 #define MAX_HEAP_BSS_DIFF (1024*1024)
221 #ifdef HAVE_WINDOW_SYSTEM
222 extern Lisp_Object Vinitial_window_system
;
223 #endif /* HAVE_WINDOW_SYSTEM */
225 extern Lisp_Object Vauto_save_list_file_name
;
227 extern Lisp_Object Vinhibit_redisplay
;
229 /* Nonzero means running Emacs without interactive terminal. */
233 /* Value of Lisp variable `noninteractive'.
234 Normally same as C variable `noninteractive'
235 but nothing terrible happens if user sets this one. */
239 /* Nonzero means Emacs was run in --quick mode. */
240 int inhibit_x_resources
;
242 /* Name for the server started by the daemon.*/
243 static char *daemon_name
;
245 /* Pipe used to send exit notification to the daemon parent at
249 /* Save argv and argc. */
253 static void sort_args ();
254 void syms_of_emacs ();
256 /* MSVC needs each string be shorter than 2048 bytes, so the usage
257 strings below are split to not overflow this limit. */
259 Usage: %s [OPTION-OR-FILENAME]...\n\
261 Run Emacs, the extensible, customizable, self-documenting real-time\n\
262 display editor. The recommended way to start Emacs for normal editing\n\
263 is with no options at all.\n\
265 Run M-x info RET m emacs RET m emacs invocation RET inside Emacs to\n\
266 read the main documentation for these command-line arguments.\n\
268 Initialization options:\n\
270 --batch do not do interactive display; implies -q\n\
271 --daemon start a server in the background\n\
272 --debug-init enable Emacs Lisp debugger for init file\n\
273 --display, -d DISPLAY use X server DISPLAY\n\
274 --no-desktop do not load a saved desktop\n\
275 --no-init-file, -q load neither ~/.emacs nor default.el\n\
276 --no-shared-memory, -nl do not use shared memory\n\
277 --no-site-file do not load site-start.el\n\
278 --no-splash do not display a splash screen on startup\n\
279 --no-window-system, -nw do not communicate with X, ignoring $DISPLAY\n\
280 --quick, -Q equivalent to -q --no-site-file --no-splash\n\
281 --script FILE run FILE as an Emacs Lisp script\n\
282 --terminal, -t DEVICE use DEVICE for terminal I/O\n\
283 --user, -u USER load ~USER/.emacs instead of your own\n\
289 FILE visit FILE using find-file\n\
290 +LINE go to line LINE in next FILE\n\
291 +LINE:COLUMN go to line LINE, column COLUMN, in next FILE\n\
292 --directory, -L DIR add DIR to variable load-path\n\
293 --eval EXPR evaluate Emacs Lisp expression EXPR\n\
294 --execute EXPR evaluate Emacs Lisp expression EXPR\n\
295 --file FILE visit FILE using find-file\n\
296 --find-file FILE visit FILE using find-file\n\
297 --funcall, -f FUNC call Emacs Lisp function FUNC with no arguments\n\
298 --insert FILE insert contents of FILE into current buffer\n\
299 --kill exit without asking for confirmation\n\
300 --load, -l FILE load Emacs Lisp FILE using the load function\n\
301 --visit FILE visit FILE using find-file\n\
307 --background-color, -bg COLOR window background color\n\
308 --basic-display, -D disable many display features;\n\
309 used for debugging Emacs\n\
310 --border-color, -bd COLOR main border color\n\
311 --border-width, -bw WIDTH width of main border\n\
312 --color, --color=MODE override color mode for character terminals;\n\
313 MODE defaults to `auto', and can also\n\
314 be `never', `auto', `always',\n\
315 or a mode name like `ansi8'\n\
316 --cursor-color, -cr COLOR color of the Emacs cursor indicating point\n\
317 --font, -fn FONT default font; must be fixed-width\n\
318 --foreground-color, -fg COLOR window foreground color\n\
319 --fullheight, -fh make the first frame high as the screen\n\
320 --fullscreen, -fs make first frame fullscreen\n\
321 --fullwidth, -fw make the first frame wide as the screen\n\
322 --maximized, -mm make the first frame maximized\n\
323 --geometry, -g GEOMETRY window geometry\n\
324 --no-bitmap-icon, -nbi do not use picture of gnu for Emacs icon\n\
325 --iconic start Emacs in iconified state\n\
326 --internal-border, -ib WIDTH width between text and main border\n\
327 --line-spacing, -lsp PIXELS additional space to put between lines\n\
328 --mouse-color, -ms COLOR mouse cursor color in Emacs window\n\
329 --name NAME title for initial Emacs frame\n\
330 --no-blinking-cursor, -nbc disable blinking cursor\n\
331 --reverse-video, -r, -rv switch foreground and background\n\
332 --title, -T TITLE title for initial Emacs frame\n\
333 --vertical-scroll-bars, -vb enable vertical scroll bars\n\
334 --xrm XRESOURCES set additional X resources\n\
335 --parent-id XID set parent window\n\
336 --help display this help and exit\n\
337 --version output version information and exit\n\
341 You can generally also specify long option names with a single -; for\n\
342 example, -batch as well as --batch. You can use any unambiguous\n\
343 abbreviation for a --option.\n\
345 Various environment variables and window system resources also affect\n\
346 Emacs' operation. See the main documentation.\n\
348 Report bugs to %s. First, please see the Bugs\n\
349 section of the Emacs manual or the file BUGS.\n"
352 /* Signal code for the fatal signal that was received. */
353 int fatal_error_code
;
355 /* Nonzero if handling a fatal error already. */
356 int fatal_error_in_progress
;
358 /* If non-null, call this function from fatal_error_signal before
359 committing suicide. */
361 void (*fatal_error_signal_hook
) P_ ((void));
363 #ifdef FORWARD_SIGNAL_TO_MAIN_THREAD
364 /* When compiled with GTK and running under Gnome,
365 multiple threads may be created. Keep track of our main
366 thread to make sure signals are delivered to it (see syssignal.h). */
368 pthread_t main_thread
;
372 /* Handle bus errors, invalid instruction, etc. */
374 fatal_error_signal (sig
)
377 SIGNAL_THREAD_CHECK (sig
);
378 fatal_error_code
= sig
;
379 signal (sig
, SIG_DFL
);
381 TOTALLY_UNBLOCK_INPUT
;
383 /* If fatal error occurs in code below, avoid infinite recursion. */
384 if (! fatal_error_in_progress
)
386 fatal_error_in_progress
= 1;
388 shut_down_emacs (sig
, 0, Qnil
);
391 /* Signal the same code; this time it will really be fatal.
392 Remember that since we're in a signal handler, the signal we're
393 going to send is probably blocked, so we have to unblock it if we
394 want to really receive it. */
396 sigunblock (sigmask (fatal_error_code
));
399 if (fatal_error_signal_hook
)
400 fatal_error_signal_hook ();
402 kill (getpid (), fatal_error_code
);
407 /* Handler for SIGDANGER. */
409 memory_warning_signal (sig
)
412 signal (sig
, memory_warning_signal
);
413 SIGNAL_THREAD_CHECK (sig
);
415 malloc_warning ("Operating system warns that virtual memory is running low.\n");
417 /* It might be unsafe to call do_auto_save now. */
418 force_auto_save_soon ();
422 /* We define abort, rather than using it from the library,
423 so that GDB can return from a breakpoint here.
424 MSDOS has its own definition in msdos.c. */
426 #if ! defined (DOS_NT) && ! defined (NO_ABORT)
431 kill (getpid (), SIGABRT
);
432 /* This shouldn't be executed, but it prevents a warning. */
438 /* Code for dealing with Lisp access to the Unix command line. */
441 init_cmdargs (argc
, argv
, skip_args
)
447 Lisp_Object name
, dir
, tem
;
448 int count
= SPECPDL_INDEX ();
449 Lisp_Object raw_name
;
454 raw_name
= build_string (argv
[0]);
456 /* Add /: to the front of the name
457 if it would otherwise be treated as magic. */
458 tem
= Ffind_file_name_handler (raw_name
, Qt
);
460 raw_name
= concat2 (build_string ("/:"), raw_name
);
462 Vinvocation_name
= Ffile_name_nondirectory (raw_name
);
463 Vinvocation_directory
= Ffile_name_directory (raw_name
);
465 /* If we got no directory in argv[0], search PATH to find where
466 Emacs actually came from. */
467 if (NILP (Vinvocation_directory
))
470 int yes
= openp (Vexec_path
, Vinvocation_name
,
471 Vexec_suffixes
, &found
, make_number (X_OK
));
474 /* Add /: to the front of the name
475 if it would otherwise be treated as magic. */
476 tem
= Ffind_file_name_handler (found
, Qt
);
478 found
= concat2 (build_string ("/:"), found
);
479 Vinvocation_directory
= Ffile_name_directory (found
);
483 if (!NILP (Vinvocation_directory
)
484 && NILP (Ffile_name_absolute_p (Vinvocation_directory
)))
485 /* Emacs was started with relative path, like ./emacs.
487 Vinvocation_directory
= Fexpand_file_name (Vinvocation_directory
, Qnil
);
489 Vinstallation_directory
= Qnil
;
491 if (!NILP (Vinvocation_directory
))
493 dir
= Vinvocation_directory
;
494 name
= Fexpand_file_name (Vinvocation_name
, dir
);
497 Lisp_Object tem
, lib_src_exists
;
498 Lisp_Object etc_exists
, info_exists
;
500 /* See if dir contains subdirs for use by Emacs.
501 Check for the ones that would exist in a build directory,
502 not including lisp and info. */
503 tem
= Fexpand_file_name (build_string ("lib-src"), dir
);
504 lib_src_exists
= Ffile_exists_p (tem
);
507 /* MSDOS installations frequently remove lib-src, but we still
508 must set installation-directory, or else info won't find
509 its files (it uses the value of installation-directory). */
510 tem
= Fexpand_file_name (build_string ("info"), dir
);
511 info_exists
= Ffile_exists_p (tem
);
516 if (!NILP (lib_src_exists
) || !NILP (info_exists
))
518 tem
= Fexpand_file_name (build_string ("etc"), dir
);
519 etc_exists
= Ffile_exists_p (tem
);
520 if (!NILP (etc_exists
))
522 Vinstallation_directory
523 = Ffile_name_as_directory (dir
);
528 /* See if dir's parent contains those subdirs. */
529 tem
= Fexpand_file_name (build_string ("../lib-src"), dir
);
530 lib_src_exists
= Ffile_exists_p (tem
);
534 /* See the MSDOS commentary above. */
535 tem
= Fexpand_file_name (build_string ("../info"), dir
);
536 info_exists
= Ffile_exists_p (tem
);
541 if (!NILP (lib_src_exists
) || !NILP (info_exists
))
543 tem
= Fexpand_file_name (build_string ("../etc"), dir
);
544 etc_exists
= Ffile_exists_p (tem
);
545 if (!NILP (etc_exists
))
547 tem
= Fexpand_file_name (build_string (".."), dir
);
548 Vinstallation_directory
549 = Ffile_name_as_directory (tem
);
554 /* If the Emacs executable is actually a link,
555 next try the dir that the link points into. */
556 tem
= Ffile_symlink_p (name
);
559 name
= Fexpand_file_name (tem
, dir
);
560 dir
= Ffile_name_directory (name
);
567 Vcommand_line_args
= Qnil
;
569 for (i
= argc
- 1; i
>= 0; i
--)
571 if (i
== 0 || i
> skip_args
)
572 /* For the moment, we keep arguments as is in unibyte strings.
573 They are decoded in the function command-line after we know
574 locale-coding-system. */
576 = Fcons (make_unibyte_string (argv
[i
], strlen (argv
[i
])),
580 unbind_to (count
, Qnil
);
583 DEFUN ("invocation-name", Finvocation_name
, Sinvocation_name
, 0, 0, 0,
584 doc
: /* Return the program name that was used to run Emacs.
585 Any directory names are omitted. */)
588 return Fcopy_sequence (Vinvocation_name
);
591 DEFUN ("invocation-directory", Finvocation_directory
, Sinvocation_directory
,
593 doc
: /* Return the directory name in which the Emacs executable was located. */)
596 return Fcopy_sequence (Vinvocation_directory
);
601 /* A valid but unlikely value for the TZ environment value.
602 It is OK (though a bit slower) if the user actually chooses this value. */
603 static char dump_tz
[] = "UtC0";
606 #ifndef ORDINARY_LINK
607 /* We don't include crtbegin.o and crtend.o in the link,
608 so these functions and variables might be missed.
609 Provide dummy definitions to avoid error.
610 (We don't have any real constructors or destructors.) */
612 #ifndef GCC_CTORS_IN_LIBC
613 void __do_global_ctors ()
615 void __do_global_ctors_aux ()
617 void __do_global_dtors ()
619 /* GNU/Linux has a bug in its library; avoid an error. */
621 char * __CTOR_LIST__
[2] = { (char *) (-1), 0 };
623 char * __DTOR_LIST__
[2] = { (char *) (-1), 0 };
624 #endif /* GCC_CTORS_IN_LIBC */
627 #endif /* __GNUC__ */
628 #endif /* ORDINARY_LINK */
630 /* Test whether the next argument in ARGV matches SSTR or a prefix of
631 LSTR (at least MINLEN characters). If so, then if VALPTR is non-null
632 (the argument is supposed to have a value) store in *VALPTR either
633 the next argument or the portion of this one after the equal sign.
634 ARGV is read starting at position *SKIPPTR; this index is advanced
635 by the number of arguments used.
637 Too bad we can't just use getopt for all of this, but we don't have
638 enough information to do it right. */
641 argmatch (argv
, argc
, sstr
, lstr
, minlen
, valptr
, skipptr
)
654 /* Don't access argv[argc]; give up in advance. */
655 if (argc
<= *skipptr
+ 1)
658 arg
= argv
[*skipptr
+1];
661 if (strcmp (arg
, sstr
) == 0)
665 *valptr
= argv
[*skipptr
+2];
672 arglen
= (valptr
!= NULL
&& (p
= index (arg
, '=')) != NULL
673 ? p
- arg
: strlen (arg
));
674 if (lstr
== 0 || arglen
< minlen
|| strncmp (arg
, lstr
, arglen
) != 0)
676 else if (valptr
== NULL
)
687 else if (argv
[*skipptr
+2] != NULL
)
689 *valptr
= argv
[*skipptr
+2];
699 #ifdef DOUG_LEA_MALLOC
701 /* malloc can be invoked even before main (e.g. by the dynamic
702 linker), so the dumped malloc state must be restored as early as
703 possible using this special hook. */
706 malloc_initialize_hook ()
709 extern char **environ
;
714 if (!malloc_using_checking
)
715 /* Work around a bug in glibc's malloc. MALLOC_CHECK_ must be
716 ignored if the heap to be restored was constructed without
717 malloc checking. Can't use unsetenv, since that calls malloc. */
721 for (p
= environ
; p
&& *p
; p
++)
722 if (strncmp (*p
, "MALLOC_CHECK_=", 14) == 0)
731 malloc_set_state (malloc_state_ptr
);
732 #ifndef XMALLOC_OVERRUN_CHECK
733 free (malloc_state_ptr
);
738 if (my_heap_start
== 0)
739 my_heap_start
= sbrk (0);
740 malloc_using_checking
= getenv ("MALLOC_CHECK_") != NULL
;
744 void (*__malloc_initialize_hook
) () = malloc_initialize_hook
;
746 #endif /* DOUG_LEA_MALLOC */
749 #define REPORT_EMACS_BUG_ADDRESS "bug-gnu-emacs@gnu.org"
750 #define REPORT_EMACS_BUG_PRETEST_ADDRESS "emacs-pretest-bug@gnu.org"
752 /* This function is used to determine an address to which bug report should
756 bug_reporting_address ()
762 temp
= Fsymbol_value (intern ("emacs-version"));
764 /* When `emacs-version' is invalid, use normal address. */
766 return REPORT_EMACS_BUG_ADDRESS
;
768 string
= SDATA (temp
);
770 /* Count dots in `emacs-version'. */
778 /* When `emacs-version' has at least three dots, it is development or
779 pretest version of Emacs. */
780 return count
>= 3 ? REPORT_EMACS_BUG_PRETEST_ADDRESS
: REPORT_EMACS_BUG_ADDRESS
;
786 main (int argc
, char **argv
)
791 char stack_bottom_variable
;
792 int do_initial_setlocale
;
797 #ifdef HAVE_SETRLIMIT
808 extern Lisp_Object
*stack_base
;
814 extern char my_endbss
[];
815 extern char *my_endbss_static
;
817 if (my_heap_start
== 0)
818 my_heap_start
= sbrk (0);
820 heap_bss_diff
= (char *)my_heap_start
- max (my_endbss
, my_endbss_static
);
823 #ifdef LINUX_SBRK_BUG
824 /* This is only used GNU/LINUX running on alpha when using libc5 */
828 #ifdef RUN_TIME_REMAP
830 run_time_remap (argv
[0]);
833 /* If using unexmacosx.c (set by s/darwin.h), we must do this. */
836 unexec_init_emacs_zone ();
839 sort_args (argc
, argv
);
841 while (argv
[argc
]) argc
++;
843 if (argmatch (argv
, argc
, "-version", "--version", 3, NULL
, &skip_args
)
844 /* We don't know the version number unless this is a dumped Emacs.
845 So ignore --version otherwise. */
848 Lisp_Object tem
, tem2
;
849 tem
= Fsymbol_value (intern_c_string ("emacs-version"));
850 tem2
= Fsymbol_value (intern_c_string ("emacs-copyright"));
853 fprintf (stderr
, "Invalid value of `emacs-version'\n");
858 fprintf (stderr
, "Invalid value of `emacs-copyright'\n");
863 printf ("GNU Emacs %s\n", SDATA (tem
));
864 printf ("%s\n", SDATA(tem2
));
865 printf ("GNU Emacs comes with ABSOLUTELY NO WARRANTY.\n");
866 printf ("You may redistribute copies of Emacs\n");
867 printf ("under the terms of the GNU General Public License.\n");
868 printf ("For more information about these matters, ");
869 printf ("see the file named COPYING.\n");
874 #ifdef HAVE_PERSONALITY_LINUX32
876 && (strcmp (argv
[argc
-1], "dump") == 0
877 || strcmp (argv
[argc
-1], "bootstrap") == 0)
878 && ! getenv ("EMACS_HEAP_EXEC"))
880 /* Set this so we only do this once. */
881 putenv("EMACS_HEAP_EXEC=true");
883 /* A flag to turn off address randomization which is introduced
884 in linux kernel shipped with fedora core 4 */
885 #define ADD_NO_RANDOMIZE 0x0040000
886 personality (PER_LINUX32
| ADD_NO_RANDOMIZE
);
887 #undef ADD_NO_RANDOMIZE
889 execvp (argv
[0], argv
);
891 /* If the exec fails, try to dump anyway. */
894 #endif /* HAVE_PERSONALITY_LINUX32 */
897 /* Map in shared memory, if we are using that. */
899 if (argmatch (argv
, argc
, "-nl", "--no-shared-memory", 6, NULL
, &skip_args
))
902 /* The shared memory was just restored, which clobbered this. */
908 /* The shared memory was just restored, which clobbered this. */
913 #if defined (HAVE_SETRLIMIT) && defined (RLIMIT_STACK)
914 /* Extend the stack space available.
915 Don't do that if dumping, since some systems (e.g. DJGPP)
916 might define a smaller stack limit at that time. */
919 && (!noninteractive
|| initialized
)
921 && !getrlimit (RLIMIT_STACK
, &rlim
))
924 extern size_t re_max_failures
;
925 /* Approximate the amount regex.c needs per unit of re_max_failures. */
926 int ratio
= 20 * sizeof (char *);
927 /* Then add 33% to cover the size of the smaller stacks that regex.c
928 successively allocates and discards, on its way to the maximum. */
930 /* Add in some extra to cover
931 what we're likely to use for other reasons. */
932 newlim
= re_max_failures
* ratio
+ 200000;
934 /* NetBSD (at least NetBSD 1.2G and former) has a bug in its
935 stack allocation routine for new process that the allocation
936 fails if stack limit is not on page boundary. So, round up the
937 new limit to page boundary. */
938 newlim
= (newlim
+ getpagesize () - 1) / getpagesize () * getpagesize();
940 if (newlim
> rlim
.rlim_max
)
942 newlim
= rlim
.rlim_max
;
943 /* Don't let regex.c overflow the stack we have. */
944 re_max_failures
= (newlim
- 200000) / ratio
;
946 if (rlim
.rlim_cur
< newlim
)
947 rlim
.rlim_cur
= newlim
;
949 setrlimit (RLIMIT_STACK
, &rlim
);
951 #endif /* HAVE_SETRLIMIT and RLIMIT_STACK */
953 /* Record (approximately) where the stack begins. */
954 stack_bottom
= &stack_bottom_variable
;
958 #ifndef SYSTEM_MALLOC
959 /* Arrange to get warning messages as memory fills up. */
960 memory_warnings (0, malloc_warning
);
962 /* Call malloc at least once, to run the initial __malloc_hook.
963 Also call realloc and free for consistency. */
964 free (realloc (malloc (4), 4));
967 /* Arrange to disable interrupt input inside malloc etc. */
968 uninterrupt_malloc ();
969 # endif /* not SYNC_INPUT */
970 #endif /* not SYSTEM_MALLOC */
972 #ifdef FORWARD_SIGNAL_TO_MAIN_THREAD
973 main_thread
= pthread_self ();
974 #endif /* FORWARD_SIGNAL_TO_MAIN_THREAD */
976 #if defined (MSDOS) || defined (WINDOWSNT)
977 /* We do all file input/output as binary files. When we need to translate
978 newlines, we do that manually. */
980 #endif /* MSDOS || WINDOWSNT */
984 if (!isatty (fileno (stdin
)))
985 setmode (fileno (stdin
), O_BINARY
);
986 if (!isatty (fileno (stdout
)))
989 setmode (fileno (stdout
), O_BINARY
);
991 #else /* not __DJGPP__ >= 2 */
992 (stdin
)->_flag
&= ~_IOTEXT
;
993 (stdout
)->_flag
&= ~_IOTEXT
;
994 (stderr
)->_flag
&= ~_IOTEXT
;
995 #endif /* not __DJGPP__ >= 2 */
998 #ifdef SET_EMACS_PRIORITY
1000 nice (emacs_priority
);
1002 #endif /* SET_EMACS_PRIORITY */
1004 /* Skip initial setlocale if LC_ALL is "C", as it's not needed in that case.
1005 The build procedure uses this while dumping, to ensure that the
1006 dumped Emacs does not have its system locale tables initialized,
1007 as that might cause screwups when the dumped Emacs starts up. */
1009 char *lc_all
= getenv ("LC_ALL");
1010 do_initial_setlocale
= ! lc_all
|| strcmp (lc_all
, "C");
1013 /* Set locale now, so that initial error messages are localized properly.
1014 fixup_locale must wait until later, since it builds strings. */
1015 if (do_initial_setlocale
)
1016 setlocale (LC_ALL
, "");
1018 inhibit_window_system
= 0;
1020 /* Handle the -t switch, which specifies filename to use as terminal. */
1024 if (argmatch (argv
, argc
, "-t", "--terminal", 4, &term
, &skip_args
))
1029 result
= emacs_open (term
, O_RDWR
, 0);
1032 char *errstring
= strerror (errno
);
1033 fprintf (stderr
, "%s: %s: %s\n", argv
[0], term
, errstring
);
1039 fprintf (stderr
, "%s: %s: not a tty\n", argv
[0], term
);
1042 fprintf (stderr
, "Using %s\n", term
);
1043 #ifdef HAVE_WINDOW_SYSTEM
1044 inhibit_window_system
= 1; /* -t => -nw */
1051 /* Command line option --no-windows is deprecated and thus not mentioned
1052 in the manual and usage informations. */
1053 if (argmatch (argv
, argc
, "-nw", "--no-window-system", 6, NULL
, &skip_args
)
1054 || argmatch (argv
, argc
, "-nw", "--no-windows", 6, NULL
, &skip_args
))
1055 inhibit_window_system
= 1;
1057 /* Handle the -batch switch, which means don't do interactive display. */
1059 if (argmatch (argv
, argc
, "-batch", "--batch", 5, NULL
, &skip_args
))
1062 Vundo_outer_limit
= Qnil
;
1064 if (argmatch (argv
, argc
, "-script", "--script", 3, &junk
, &skip_args
))
1066 noninteractive
= 1; /* Set batch mode. */
1067 /* Convert --script to -scriptload, un-skip it, and sort again
1068 so that it will be handled in proper sequence. */
1069 /* FIXME broken for --script=FILE - is that supposed to work? */
1070 argv
[skip_args
- 1] = "-scriptload";
1072 sort_args (argc
, argv
);
1075 /* Handle the --help option, which gives a usage message. */
1076 if (argmatch (argv
, argc
, "-help", "--help", 3, NULL
, &skip_args
))
1078 printf (USAGE1
, argv
[0], USAGE2
);
1080 printf (USAGE4
, bug_reporting_address ());
1084 if (argmatch (argv
, argc
, "-daemon", "--daemon", 5, NULL
, &skip_args
)
1085 || argmatch (argv
, argc
, "-daemon", "--daemon", 5, &dname_arg
, &skip_args
))
1090 /* Start as a daemon: fork a new child process which will run the
1091 rest of the initialization code, then exit.
1093 Detaching a daemon requires the following steps:
1097 - close the tty file-descriptors
1099 We only want to do the last 2 steps once the daemon is ready to
1100 serve requests, i.e. after loading .emacs (initialization).
1101 OTOH initialization may start subprocesses (e.g. ispell) and these
1102 should be run from the proper process (the one that will end up
1103 running as daemon) and with the proper "session id" in order for
1104 them to keep working after detaching, so fork and setsid need to be
1105 performed before initialization.
1107 We want to avoid exiting before the server socket is ready, so
1108 use a pipe for synchronization. The parent waits for the child
1109 to close its end of the pipe (using `daemon-initialized')
1111 if (pipe (daemon_pipe
) == -1)
1113 fprintf (stderr
, "Cannot pipe!\n");
1117 #ifndef NS_IMPL_COCOA
1119 #else /* NS_IMPL_COCOA */
1120 /* Under Cocoa we must do fork+exec as CoreFoundation lib fails in
1121 forked process: http://developer.apple.com/ReleaseNotes/
1122 CoreFoundation/CoreFoundation.html)
1123 We mark being in the exec'd process by a daemon name argument of
1124 form "--daemon=\nFD0,FD1\nNAME" where FD are the pipe file descriptors,
1125 NAME is the original daemon name, if any. */
1126 if (!dname_arg
|| !strchr (dname_arg
, '\n'))
1127 f
= fork (); /* in orig */
1129 f
= 0; /* in exec'd */
1130 #endif /* NS_IMPL_COCOA */
1136 /* Close unused writing end of the pipe. */
1137 close (daemon_pipe
[1]);
1139 /* Just wait for the child to close its end of the pipe. */
1142 retval
= read (daemon_pipe
[0], &buf
, 1);
1144 while (retval
== -1 && errno
== EINTR
);
1148 fprintf (stderr
, "Error reading status from child\n");
1151 else if (retval
== 0)
1153 fprintf (stderr
, "Error: server did not start correctly\n");
1157 close (daemon_pipe
[0]);
1162 fprintf (stderr
, "Cannot fork!\n");
1166 #ifdef NS_IMPL_COCOA
1168 /* In orig process, forked as child, OR in exec'd. */
1169 if (!dname_arg
|| !strchr (dname_arg
, '\n'))
1170 { /* In orig, child: now exec w/special daemon name. */
1173 if (dname_arg
&& strlen (dname_arg
) > 70)
1175 fprintf (stderr
, "daemon: child name too long\n");
1179 sprintf (fdStr
, "--daemon=\n%d,%d\n%s", daemon_pipe
[0],
1180 daemon_pipe
[1], dname_arg
? dname_arg
: "");
1181 argv
[skip_args
] = fdStr
;
1183 execv (argv
[0], argv
);
1184 fprintf (stderr
, "emacs daemon: exec failed: %d\n", errno
);
1188 /* In exec'd: parse special dname into pipe and name info. */
1189 if (!dname_arg
|| !strchr (dname_arg
, '\n')
1190 || strlen (dname_arg
) < 1 || strlen (dname_arg
) > 70)
1192 fprintf (stderr
, "emacs daemon: daemon name absent or too long\n");
1195 dname_arg2
[0] = '\0';
1196 sscanf (dname_arg
, "\n%d,%d\n%s", &(daemon_pipe
[0]), &(daemon_pipe
[1]),
1198 dname_arg
= strlen (dname_arg2
) ? dname_arg2
: NULL
;
1200 #endif /* NS_IMPL_COCOA */
1203 daemon_name
= xstrdup (dname_arg
);
1204 /* Close unused reading end of the pipe. */
1205 close (daemon_pipe
[0]);
1206 /* Make sure that the used end of the pipe is closed on exec, so
1207 that it is not accessible to programs started from .emacs. */
1208 fcntl (daemon_pipe
[1], F_SETFD
, FD_CLOEXEC
);
1214 fprintf (stderr
, "This platform does not support the -daemon flag.\n");
1219 if (! noninteractive
)
1224 inherited_pgroup
= EMACS_GETPGRP (0);
1225 setpgrp (0, getpid ());
1228 #if defined (USG5) && defined (INTERRUPT_INPUT)
1232 #if defined (HAVE_GTK_AND_PTHREAD) && !defined (SYSTEM_MALLOC) && !defined (DOUG_LEA_MALLOC)
1234 extern void malloc_enable_thread
P_ ((void));
1236 malloc_enable_thread ();
1243 /* Don't catch SIGHUP if dumping. */
1250 sigblock (sigmask (SIGHUP
));
1251 /* In --batch mode, don't catch SIGHUP if already ignored.
1252 That makes nohup work. */
1253 if (! noninteractive
1254 || signal (SIGHUP
, SIG_IGN
) != SIG_IGN
)
1255 signal (SIGHUP
, fatal_error_signal
);
1256 sigunblock (sigmask (SIGHUP
));
1261 ! noninteractive
|| initialized
1267 /* Don't catch these signals in batch mode if dumping.
1268 On some machines, this sets static data that would make
1269 signal fail to work right when the dumped Emacs is run. */
1270 signal (SIGQUIT
, fatal_error_signal
);
1271 signal (SIGILL
, fatal_error_signal
);
1272 signal (SIGTRAP
, fatal_error_signal
);
1274 add_user_signal (SIGUSR1
, "sigusr1");
1277 add_user_signal (SIGUSR2
, "sigusr2");
1280 signal (SIGABRT
, fatal_error_signal
);
1283 signal (SIGHWE
, fatal_error_signal
);
1286 signal (SIGPRE
, fatal_error_signal
);
1289 signal (SIGORE
, fatal_error_signal
);
1292 signal (SIGUME
, fatal_error_signal
);
1295 signal (SIGDLK
, fatal_error_signal
);
1298 signal (SIGCPULIM
, fatal_error_signal
);
1301 /* This is missing on some systems - OS/2, for example. */
1302 signal (SIGIOT
, fatal_error_signal
);
1305 signal (SIGEMT
, fatal_error_signal
);
1307 signal (SIGFPE
, fatal_error_signal
);
1309 signal (SIGBUS
, fatal_error_signal
);
1311 signal (SIGSEGV
, fatal_error_signal
);
1313 signal (SIGSYS
, fatal_error_signal
);
1315 signal (SIGTERM
, fatal_error_signal
);
1317 signal (SIGXCPU
, fatal_error_signal
);
1320 signal (SIGXFSZ
, fatal_error_signal
);
1321 #endif /* SIGXFSZ */
1324 /* This just means available memory is getting low. */
1325 signal (SIGDANGER
, memory_warning_signal
);
1329 /* 20 is SIGCHLD, 21 is SIGTTIN, 22 is SIGTTOU. */
1330 signal (SIGXCPU
, fatal_error_signal
);
1332 signal (SIGIOINT
, fatal_error_signal
);
1334 signal (SIGGRANT
, fatal_error_signal
);
1335 signal (SIGRETRACT
, fatal_error_signal
);
1336 signal (SIGSOUND
, fatal_error_signal
);
1337 signal (SIGMSG
, fatal_error_signal
);
1341 noninteractive1
= noninteractive
;
1343 /* Perform basic initializations (not merely interning symbols). */
1350 init_character_once ();
1351 init_charset_once ();
1352 init_coding_once ();
1353 init_syntax_once (); /* Create standard syntax table. */
1354 init_category_once (); /* Create standard category table. */
1355 /* Must be done before init_buffer. */
1356 init_casetab_once ();
1357 init_buffer_once (); /* Create buffer table and some buffers. */
1358 init_minibuf_once (); /* Create list of minibuffers. */
1359 /* Must precede init_window_once. */
1361 /* Call syms_of_xfaces before init_window_once because that
1362 function creates Vterminal_frame. Termcap frames now use
1363 faces, and the face implementation uses some symbols as
1366 /* XXX syms_of_keyboard uses some symbols in keymap.c. It would
1367 be better to arrange things not to have this dependency. */
1369 /* Call syms_of_keyboard before init_window_once because
1370 keyboard sets up symbols that include some face names that
1371 the X support will want to use. This can happen when
1372 CANNOT_DUMP is defined. */
1373 syms_of_keyboard ();
1375 /* Called before syms_of_fileio, because it sets up Qerror_condition. */
1378 /* Before syms_of_coding to initialize Vgc_cons_threshold. */
1380 /* Before syms_of_coding because it initializes Qcharsetp. */
1382 /* Before init_window_once, because it sets up the
1383 Vcoding_system_hash_table. */
1384 syms_of_coding (); /* This should be after syms_of_fileio. */
1386 init_window_once (); /* Init the window system. */
1387 #ifdef HAVE_WINDOW_SYSTEM
1388 init_fringe_once (); /* Swap bitmaps if necessary. */
1389 #endif /* HAVE_WINDOW_SYSTEM */
1394 if (do_initial_setlocale
)
1397 Vsystem_messages_locale
= Vprevious_system_messages_locale
;
1398 Vsystem_time_locale
= Vprevious_system_time_locale
;
1403 #ifdef CLASH_DETECTION
1407 running_asynch_code
= 0;
1409 /* Handle --unibyte and the EMACS_UNIBYTE envvar,
1410 but not while dumping. */
1413 int inhibit_unibyte
= 0;
1415 /* --multibyte overrides EMACS_UNIBYTE. */
1416 if (argmatch (argv
, argc
, "-no-unibyte", "--no-unibyte", 4, NULL
, &skip_args
)
1417 || argmatch (argv
, argc
, "-multibyte", "--multibyte", 4, NULL
, &skip_args
)
1418 /* Ignore EMACS_UNIBYTE before dumping. */
1419 || (!initialized
&& noninteractive
))
1420 inhibit_unibyte
= 1;
1422 /* --unibyte requests that we set up to do everything with single-byte
1423 buffers and strings. We need to handle this before calling
1424 init_lread, init_editfns and other places that generate Lisp strings
1425 from text in the environment. */
1426 /* Actually this shouldn't be needed as of 20.4 in a generally
1427 unibyte environment. As handa says, environment values
1428 aren't now decoded; also existing buffers are now made
1429 unibyte during startup if .emacs sets unibyte. Tested with
1430 8-bit data in environment variables and /etc/passwd, setting
1431 unibyte and Latin-1 in .emacs. -- Dave Love */
1432 if (argmatch (argv
, argc
, "-unibyte", "--unibyte", 4, NULL
, &skip_args
)
1433 || argmatch (argv
, argc
, "-no-multibyte", "--no-multibyte", 4, NULL
, &skip_args
)
1434 || (getenv ("EMACS_UNIBYTE") && !inhibit_unibyte
))
1436 Lisp_Object old_log_max
;
1437 Lisp_Object symbol
, tail
;
1439 symbol
= intern_c_string ("enable-multibyte-characters");
1440 Fset_default (symbol
, Qnil
);
1444 /* Erase pre-dump messages in *Messages* now so no abort. */
1445 old_log_max
= Vmessage_log_max
;
1446 XSETFASTINT (Vmessage_log_max
, 0);
1447 message_dolog ("", 0, 1, 0);
1448 Vmessage_log_max
= old_log_max
;
1451 for (tail
= Vbuffer_alist
; CONSP (tail
);
1456 buffer
= Fcdr (XCAR (tail
));
1457 /* Make a multibyte buffer unibyte. */
1458 if (BUF_Z_BYTE (XBUFFER (buffer
)) > BUF_Z (XBUFFER (buffer
)))
1460 struct buffer
*current
= current_buffer
;
1462 set_buffer_temp (XBUFFER (buffer
));
1463 Fset_buffer_multibyte (Qnil
);
1464 set_buffer_temp (current
);
1467 message ("Warning: unibyte sessions are obsolete and will disappear");
1472 = argmatch (argv
, argc
, "-nl", "--no-loadup", 6, NULL
, &skip_args
);
1475 ns_alloc_autorelease_pool();
1476 if (!noninteractive
)
1478 #ifdef NS_IMPL_COCOA
1479 if (skip_args
< argc
)
1481 if (!strncmp(argv
[skip_args
], "-psn", 4))
1484 chdir (getenv ("HOME"));
1486 else if (skip_args
+1 < argc
&& !strncmp(argv
[skip_args
+1], "-psn", 4))
1489 chdir (getenv ("HOME"));
1494 #endif /* HAVE_NS */
1496 #ifdef HAVE_X_WINDOWS
1497 /* Stupid kludge to catch command-line display spec. We can't
1498 handle this argument entirely in window system dependent code
1499 because we don't even know which window system dependent code
1500 to run until we've recognized this argument. */
1502 char *displayname
= 0;
1503 int count_before
= skip_args
;
1505 /* Skip any number of -d options, but only use the last one. */
1508 int count_before_this
= skip_args
;
1510 if (argmatch (argv
, argc
, "-d", "--display", 3, &displayname
, &skip_args
))
1512 else if (argmatch (argv
, argc
, "-display", 0, 3, &displayname
, &skip_args
))
1517 count_before
= count_before_this
;
1520 /* If we have the form --display=NAME,
1521 convert it into -d name.
1522 This requires inserting a new element into argv. */
1523 if (displayname
!= 0 && skip_args
- count_before
== 1)
1525 char **new = (char **) xmalloc (sizeof (char *) * (argc
+ 2));
1528 for (j
= 0; j
< count_before
+ 1; j
++)
1530 new[count_before
+ 1] = "-d";
1531 new[count_before
+ 2] = displayname
;
1532 for (j
= count_before
+ 2; j
<argc
; j
++)
1533 new[j
+ 1] = argv
[j
];
1537 /* Change --display to -d, when its arg is separate. */
1538 else if (displayname
!= 0 && skip_args
> count_before
1539 && argv
[count_before
+ 1][1] == '-')
1540 argv
[count_before
+ 1] = "-d";
1542 /* Don't actually discard this arg. */
1543 skip_args
= count_before
;
1547 /* argmatch must not be used after here,
1548 except when bulding temacs
1549 because the -d argument has not been skipped in skip_args. */
1552 /* Call early 'cause init_environment needs it. */
1554 /* Set defaults for several environment variables. */
1556 init_environment (argc
, argv
, skip_args
);
1563 /* Initialize environment from registry settings. */
1564 init_environment (argv
);
1565 init_ntproc (); /* must precede init_editfns. */
1575 /* egetenv is a pretty low-level facility, which may get called in
1576 many circumstances; it seems flimsy to put off initializing it
1577 until calling init_callproc. */
1578 set_initial_environment ();
1579 /* AIX crashes are reported in system versions 3.2.3 and 3.2.4
1580 if this is not done. Do it after set_global_environment so that we
1581 don't pollute Vglobal_environment. */
1582 /* Setting LANG here will defeat the startup locale processing... */
1587 init_buffer (); /* Init default directory of main buffer. */
1589 init_callproc_1 (); /* Must precede init_cmdargs and init_sys_modes. */
1590 init_cmdargs (argc
, argv
, skip_args
); /* Must precede init_lread. */
1594 /* Erase any pre-dump messages in the message log, to avoid confusion. */
1595 Lisp_Object old_log_max
;
1596 old_log_max
= Vmessage_log_max
;
1597 XSETFASTINT (Vmessage_log_max
, 0);
1598 message_dolog ("", 0, 1, 0);
1599 Vmessage_log_max
= old_log_max
;
1602 init_callproc (); /* Must follow init_cmdargs but not init_sys_modes. */
1605 /* Intern the names of all standard functions and variables;
1606 define standard keys. */
1610 /* The basic levels of Lisp must come first. Note that
1611 syms_of_data and some others have already been called. */
1617 syms_of_floatfns ();
1620 syms_of_bytecode ();
1622 syms_of_casefiddle ();
1624 syms_of_callproc ();
1625 syms_of_category ();
1627 syms_of_character ();
1629 #ifndef NO_DIR_LIBRARY
1631 #endif /* not NO_DIR_LIBRARY */
1636 #ifdef CLASH_DETECTION
1637 syms_of_filelock ();
1638 #endif /* CLASH_DETECTION */
1641 /* syms_of_keymap (); */
1649 syms_of_terminal ();
1655 syms_of_textprop ();
1656 syms_of_composite ();
1659 #endif /* WINDOWSNT */
1663 #ifdef HAVE_WINDOW_SYSTEM
1666 #endif /* HAVE_WINDOW_SYSTEM */
1667 #ifdef HAVE_X_WINDOWS
1678 #endif /* HAVE_X_WINDOWS */
1685 syms_of_w32select ();
1688 #endif /* HAVE_NTGUI */
1698 syms_of_nsselect ();
1700 #endif /* HAVE_NS */
1703 syms_of_dbusbind ();
1704 #endif /* HAVE_DBUS */
1714 keys_of_casefiddle ();
1717 keys_of_keyboard ();
1723 /* Initialization that must be done even if the global variable
1724 initialized is non zero. */
1726 globals_of_w32fns ();
1727 globals_of_w32menu ();
1728 globals_of_w32select ();
1729 #endif /* HAVE_NTGUI */
1734 init_editfns (); /* init_process uses Voperating_system_release. */
1735 init_process (); /* init_display uses add_keyboard_wait_descriptor. */
1736 init_keyboard (); /* This too must precede init_sys_modes. */
1737 if (!noninteractive
)
1738 init_display (); /* Determine terminal type. Calls init_sys_modes. */
1741 #ifdef HAVE_WINDOW_SYSTEM
1744 #endif /* HAVE_WINDOW_SYSTEM */
1756 /* Handle -l loadup, args passed by Makefile. */
1757 if (argmatch (argv
, argc
, "-l", "--load", 3, &file
, &skip_args
))
1758 Vtop_level
= Fcons (intern_c_string ("load"),
1759 Fcons (build_string (file
), Qnil
));
1760 /* Unless next switch is -nl, load "loadup.el" first thing. */
1762 Vtop_level
= Fcons (intern_c_string ("load"),
1763 Fcons (build_string ("loadup.el"), Qnil
));
1770 /* If the execution TZ happens to be the same as the dump TZ,
1771 change it to some other value and then change it back,
1772 to force the underlying implementation to reload the TZ info.
1773 This is needed on implementations that load TZ info from files,
1774 since the TZ file contents may differ between dump and execution. */
1775 char *tz
= getenv ("TZ");
1776 if (tz
&& !strcmp (tz
, dump_tz
))
1786 /* Set up for profiling. This is known to work on FreeBSD,
1787 GNU/Linux and MinGW. It might work on some other systems too.
1788 Give it a try and tell us if it works on your system. To compile
1789 for profiling, use the configure option --enable-profiling. */
1790 #if defined (__FreeBSD__) || defined (GNU_LINUX) || defined(__MINGW32__)
1794 extern void _mcleanup ();
1796 extern unsigned char etext
asm ("etext");
1800 extern void safe_bcopy ();
1801 extern void dump_opcode_frequencies ();
1804 /* This uses safe_bcopy because that function comes first in the
1805 Emacs executable. It might be better to use something that
1806 gives the start of the text segment, but start_of_text is not
1807 defined on all systems now. */
1808 monstartup (safe_bcopy
, &etext
);
1817 #ifdef LOCALTIME_CACHE
1818 /* Some versions of localtime have a bug. They cache the value of the time
1819 zone rather than looking it up every time. Since localtime() is
1820 called to bolt the undumping time into the undumped emacs, this
1821 results in localtime ignoring the TZ environment variable.
1822 This flushes the new TZ value into localtime. */
1824 #endif /* defined (LOCALTIME_CACHE) */
1826 /* Enter editor command loop. This never returns. */
1832 /* Sort the args so we can find the most important ones
1833 at the beginning of argv. */
1835 /* First, here's a table of all the standard options. */
1837 struct standard_args
1840 const char *longname
;
1845 const struct standard_args standard_args
[] =
1847 { "-version", "--version", 150, 0 },
1849 { "-nl", "--no-shared-memory", 140, 0 },
1851 { "-t", "--terminal", 120, 1 },
1852 { "-nw", "--no-window-system", 110, 0 },
1853 { "-nw", "--no-windows", 110, 0 },
1854 { "-batch", "--batch", 100, 0 },
1855 { "-script", "--script", 100, 1 },
1856 { "-daemon", "--daemon", 99, 0 },
1857 { "-help", "--help", 90, 0 },
1858 { "-no-unibyte", "--no-unibyte", 83, 0 },
1859 { "-multibyte", "--multibyte", 82, 0 },
1860 { "-unibyte", "--unibyte", 81, 0 },
1861 { "-no-multibyte", "--no-multibyte", 80, 0 },
1862 { "-nl", "--no-loadup", 70, 0 },
1863 /* -d must come last before the options handled in startup.el. */
1864 { "-d", "--display", 60, 1 },
1865 { "-display", 0, 60, 1 },
1866 /* Now for the options handled in startup.el. */
1867 { "-Q", "--quick", 55, 0 },
1868 { "-quick", 0, 55, 0 },
1869 { "-q", "--no-init-file", 50, 0 },
1870 { "-no-init-file", 0, 50, 0 },
1871 { "-no-site-file", "--no-site-file", 40, 0 },
1872 { "-u", "--user", 30, 1 },
1873 { "-user", 0, 30, 1 },
1874 { "-debug-init", "--debug-init", 20, 0 },
1875 { "-nbi", "--no-bitmap-icon", 15, 0 },
1876 { "-iconic", "--iconic", 15, 0 },
1877 { "-D", "--basic-display", 12, 0},
1878 { "-basic-display", 0, 12, 0},
1879 { "-bg", "--background-color", 10, 1 },
1880 { "-background", 0, 10, 1 },
1881 { "-fg", "--foreground-color", 10, 1 },
1882 { "-foreground", 0, 10, 1 },
1883 { "-bd", "--border-color", 10, 1 },
1884 { "-bw", "--border-width", 10, 1 },
1885 { "-ib", "--internal-border", 10, 1 },
1886 { "-ms", "--mouse-color", 10, 1 },
1887 { "-cr", "--cursor-color", 10, 1 },
1888 { "-nbc", "--no-blinking-cursor", 10, 0 },
1889 { "-fn", "--font", 10, 1 },
1890 { "-font", 0, 10, 1 },
1891 { "-fs", "--fullscreen", 10, 0 },
1892 { "-fw", "--fullwidth", 10, 0 },
1893 { "-fh", "--fullheight", 10, 0 },
1894 { "-mm", "--maximized", 10, 0 },
1895 { "-g", "--geometry", 10, 1 },
1896 { "-geometry", 0, 10, 1 },
1897 { "-T", "--title", 10, 1 },
1898 { "-title", 0, 10, 1 },
1899 { "-name", "--name", 10, 1 },
1900 { "-xrm", "--xrm", 10, 1 },
1901 { "-parent-id", "--parent-id", 10, 1 },
1902 { "-r", "--reverse-video", 5, 0 },
1904 { "-reverse", 0, 5, 0 },
1905 { "-hb", "--horizontal-scroll-bars", 5, 0 },
1906 { "-vb", "--vertical-scroll-bars", 5, 0 },
1907 { "-color", "--color", 5, 0},
1908 { "-no-splash", "--no-splash", 3, 0 },
1909 { "-no-desktop", "--no-desktop", 3, 0 },
1911 { "-NSAutoLaunch", 0, 5, 1 },
1912 { "-NXAutoLaunch", 0, 5, 1 },
1913 { "-disable-font-backend", "--disable-font-backend", 65, 0 },
1914 { "-_NSMachLaunch", 0, 85, 1 },
1915 { "-MachLaunch", 0, 85, 1 },
1916 { "-macosx", 0, 85, 0 },
1917 { "-NSHost", 0, 85, 1 },
1919 /* These have the same priority as ordinary file name args,
1920 so they are not reordered with respect to those. */
1921 { "-L", "--directory", 0, 1 },
1922 { "-directory", 0, 0, 1 },
1923 { "-l", "--load", 0, 1 },
1924 { "-load", 0, 0, 1 },
1925 /* This has no longname, because using --scriptload confuses sort_args,
1926 because then the --script long option seems to match twice; ie
1927 you can't have a long option which is a prefix of another long
1928 option. In any case, this is entirely an internal option. */
1929 { "-scriptload", NULL
, 0, 1 },
1930 { "-f", "--funcall", 0, 1 },
1931 { "-funcall", 0, 0, 1 },
1932 { "-eval", "--eval", 0, 1 },
1933 { "-execute", "--execute", 0, 1 },
1934 { "-find-file", "--find-file", 0, 1 },
1935 { "-visit", "--visit", 0, 1 },
1936 { "-file", "--file", 0, 1 },
1937 { "-insert", "--insert", 0, 1 },
1939 { "-NXOpen", 0, 0, 1 },
1940 { "-NXOpenTemp", 0, 0, 1 },
1941 { "-NSOpen", 0, 0, 1 },
1942 { "-NSOpenTemp", 0, 0, 1 },
1943 { "-GSFilePath", 0, 0, 1 },
1945 /* This should be processed after ordinary file name args and the like. */
1946 { "-kill", "--kill", -10, 0 },
1949 /* Reorder the elements of ARGV (assumed to have ARGC elements)
1950 so that the highest priority ones come first.
1951 Do not change the order of elements of equal priority.
1952 If an option takes an argument, keep it and its argument together.
1954 If an option that takes no argument appears more
1955 than once, eliminate all but one copy of it. */
1958 sort_args (argc
, argv
)
1962 char **new = (char **) xmalloc (sizeof (char *) * argc
);
1963 /* For each element of argv,
1964 the corresponding element of options is:
1965 0 for an option that takes no arguments,
1966 1 for an option that takes one argument, etc.
1967 -1 for an ordinary non-option argument. */
1968 int *options
= (int *) xmalloc (sizeof (int) * argc
);
1969 int *priority
= (int *) xmalloc (sizeof (int) * argc
);
1971 int incoming_used
= 1;
1975 /* Categorize all the options,
1976 and figure out which argv elts are option arguments. */
1977 for (from
= 1; from
< argc
; from
++)
1981 if (argv
[from
][0] == '-')
1986 /* If we have found "--", don't consider
1987 any more arguments as options. */
1988 if (argv
[from
][1] == '-' && argv
[from
][2] == 0)
1990 /* Leave the "--", and everything following it, at the end. */
1991 for (; from
< argc
; from
++)
1993 priority
[from
] = -100;
1999 /* Look for a match with a known old-fashioned option. */
2000 for (i
= 0; i
< sizeof (standard_args
) / sizeof (standard_args
[0]); i
++)
2001 if (!strcmp (argv
[from
], standard_args
[i
].name
))
2003 options
[from
] = standard_args
[i
].nargs
;
2004 priority
[from
] = standard_args
[i
].priority
;
2005 if (from
+ standard_args
[i
].nargs
>= argc
)
2006 fatal ("Option `%s' requires an argument\n", argv
[from
]);
2007 from
+= standard_args
[i
].nargs
;
2011 /* Look for a match with a known long option.
2012 MATCH is -1 if no match so far, -2 if two or more matches so far,
2013 >= 0 (the table index of the match) if just one match so far. */
2014 if (argv
[from
][1] == '-')
2017 thislen
= strlen (argv
[from
]);
2018 equals
= index (argv
[from
], '=');
2020 thislen
= equals
- argv
[from
];
2023 i
< sizeof (standard_args
) / sizeof (standard_args
[0]); i
++)
2024 if (standard_args
[i
].longname
2025 && !strncmp (argv
[from
], standard_args
[i
].longname
,
2034 /* If we found exactly one match, use that. */
2037 options
[from
] = standard_args
[match
].nargs
;
2038 priority
[from
] = standard_args
[match
].priority
;
2039 /* If --OPTION=VALUE syntax is used,
2040 this option uses just one argv element. */
2043 if (from
+ options
[from
] >= argc
)
2044 fatal ("Option `%s' requires an argument\n", argv
[from
]);
2045 from
+= options
[from
];
2047 /* FIXME When match < 0, shouldn't there be some error,
2048 or at least indication to the user that there was a
2055 /* Copy the arguments, in order of decreasing priority, to NEW. */
2057 while (incoming_used
< argc
)
2060 int best_priority
= -9999;
2062 /* Find the highest priority remaining option.
2063 If several have equal priority, take the first of them. */
2064 for (from
= 1; from
< argc
; from
++)
2066 if (argv
[from
] != 0 && priority
[from
] > best_priority
)
2068 best_priority
= priority
[from
];
2071 /* Skip option arguments--they are tied to the options. */
2072 if (options
[from
] > 0)
2073 from
+= options
[from
];
2079 /* Copy the highest priority remaining option, with its args, to NEW.
2080 Unless it is a duplicate of the previous one. */
2081 if (! (options
[best
] == 0
2082 && ! strcmp (new[to
- 1], argv
[best
])))
2084 new[to
++] = argv
[best
];
2085 for (i
= 0; i
< options
[best
]; i
++)
2086 new[to
++] = argv
[best
+ i
+ 1];
2089 incoming_used
+= 1 + (options
[best
] > 0 ? options
[best
] : 0);
2091 /* Clear out this option in ARGV. */
2093 for (i
= 0; i
< options
[best
]; i
++)
2094 argv
[best
+ i
+ 1] = 0;
2097 /* If duplicate options were deleted, fill up extra space with null ptrs. */
2101 bcopy (new, argv
, sizeof (char *) * argc
);
2108 DEFUN ("kill-emacs", Fkill_emacs
, Skill_emacs
, 0, 1, "P",
2109 doc
: /* Exit the Emacs job and kill it.
2110 If ARG is an integer, return ARG as the exit program code.
2111 If ARG is a string, stuff it as keyboard input.
2113 The value of `kill-emacs-hook', if not void,
2114 is a list of functions (of no args),
2115 all of which are called before Emacs is actually killed. */)
2119 struct gcpro gcpro1
;
2126 if (!NILP (Vrun_hooks
) && !noninteractive
)
2127 call1 (Vrun_hooks
, intern ("kill-emacs-hook"));
2131 shut_down_emacs (0, 0, STRINGP (arg
) ? arg
: Qnil
);
2133 /* If we have an auto-save list file,
2134 kill it because we are exiting Emacs deliberately (not crashing).
2135 Do it after shut_down_emacs, which does an auto-save. */
2136 if (STRINGP (Vauto_save_list_file_name
))
2137 unlink (SDATA (Vauto_save_list_file_name
));
2139 exit (INTEGERP (arg
) ? XINT (arg
) : EXIT_SUCCESS
);
2145 /* Perform an orderly shutdown of Emacs. Autosave any modified
2146 buffers, kill any child processes, clean up the terminal modes (if
2147 we're in the foreground), and other stuff like that. Don't perform
2148 any redisplay; this may be called when Emacs is shutting down in
2149 the background, or after its X connection has died.
2151 If SIG is a signal number, print a message for it.
2153 This is called by fatal signal handlers, X protocol error handlers,
2157 shut_down_emacs (sig
, no_x
, stuff
)
2161 /* Prevent running of hooks from now on. */
2164 /* Don't update display from now on. */
2165 Vinhibit_redisplay
= Qt
;
2167 /* If we are controlling the terminal, reset terminal modes. */
2168 #ifdef EMACS_HAVE_TTY_PGRP
2170 int pgrp
= EMACS_GETPGRP (0);
2173 if (EMACS_GET_TTY_PGRP (0, &tpgrp
) != -1
2176 reset_all_sys_modes ();
2177 if (sig
&& sig
!= SIGTERM
)
2178 fprintf (stderr
, "Fatal error (%d)", sig
);
2183 reset_all_sys_modes ();
2186 stuff_buffered_input (stuff
);
2189 inhibit_sentinels
= 1;
2191 kill_buffer_processes (Qnil
);
2192 Fdo_auto_save (Qt
, Qnil
);
2194 #ifdef CLASH_DETECTION
2195 unlock_all_files ();
2198 #if 0 /* This triggers a bug in XCloseDisplay and is not needed. */
2199 #ifdef HAVE_X_WINDOWS
2200 /* It's not safe to call intern here. Maybe we are crashing. */
2201 if (!noninteractive
&& SYMBOLP (Vinitial_window_system
)
2202 && SCHARS (SYMBOL_NAME (Vinitial_window_system
)) == 1
2203 && SREF (SYMBOL_NAME (Vinitial_window_system
), 0) == 'x'
2205 Fx_close_current_connection ();
2206 #endif /* HAVE_X_WINDOWS */
2210 /* There is a tendency for a SIGIO signal to arrive within exit,
2211 and cause a SIGHUP because the input descriptor is already closed. */
2213 signal (SIGIO
, SIG_IGN
);
2220 /* Do this only if terminating normally, we want glyph matrices
2221 etc. in a core dump. */
2222 if (sig
== 0 || sig
== SIGTERM
)
2224 check_glyph_memory ();
2225 check_message_stack ();
2233 ns_term_shutdown (sig
);
2243 DEFUN ("dump-emacs-data", Fdump_emacs_data
, Sdump_emacs_data
, 1, 1, 0,
2244 doc
: /* Dump current state of Emacs into data file FILENAME.
2245 This function exists on systems that use HAVE_SHM. */)
2247 Lisp_Object filename
;
2249 extern char my_edata
[];
2253 CHECK_STRING (filename
);
2254 filename
= Fexpand_file_name (filename
, Qnil
);
2257 Vpurify_flag
= Qnil
;
2260 /* Tell malloc where start of impure now is. */
2261 /* Also arrange for warnings when nearly out of space. */
2262 #ifndef SYSTEM_MALLOC
2263 memory_warnings (my_edata
, malloc_warning
);
2265 map_out_data (SDATA (filename
));
2272 #else /* not HAVE_SHM */
2274 DEFUN ("dump-emacs", Fdump_emacs
, Sdump_emacs
, 2, 2, 0,
2275 doc
: /* Dump current state of Emacs into executable file FILENAME.
2276 Take symbols from SYMFILE (presumably the file you executed to run Emacs).
2277 This is used in the file `loadup.el' when building Emacs.
2279 You must run Emacs in batch mode in order to dump it. */)
2281 Lisp_Object filename
, symfile
;
2283 extern char my_edata
[];
2286 int count
= SPECPDL_INDEX ();
2290 if (! noninteractive
)
2291 error ("Dumping Emacs works only in batch mode");
2294 if (heap_bss_diff
> MAX_HEAP_BSS_DIFF
)
2296 fprintf (stderr
, "**************************************************\n");
2297 fprintf (stderr
, "Warning: Your system has a gap between BSS and the\n");
2298 fprintf (stderr
, "heap (%lu bytes). This usually means that exec-shield\n",
2300 fprintf (stderr
, "or something similar is in effect. The dump may\n");
2301 fprintf (stderr
, "fail because of this. See the section about\n");
2302 fprintf (stderr
, "exec-shield in etc/PROBLEMS for more information.\n");
2303 fprintf (stderr
, "**************************************************\n");
2305 #endif /* GNU_LINUX */
2307 /* Bind `command-line-processed' to nil before dumping,
2308 so that the dumped Emacs will process its command line
2309 and set up to work with X windows if appropriate. */
2310 symbol
= intern ("command-line-processed");
2311 specbind (symbol
, Qnil
);
2313 CHECK_STRING (filename
);
2314 filename
= Fexpand_file_name (filename
, Qnil
);
2315 if (!NILP (symfile
))
2317 CHECK_STRING (symfile
);
2318 if (SCHARS (symfile
))
2319 symfile
= Fexpand_file_name (symfile
, Qnil
);
2323 Vpurify_flag
= Qnil
;
2326 set_time_zone_rule (dump_tz
);
2327 #ifndef LOCALTIME_CACHE
2328 /* Force a tz reload, since set_time_zone_rule doesn't. */
2334 /* Tell malloc where start of impure now is. */
2335 /* Also arrange for warnings when nearly out of space. */
2336 #ifndef SYSTEM_MALLOC
2338 /* On Windows, this was done before dumping, and that once suffices.
2339 Meanwhile, my_edata is not valid on Windows. */
2340 memory_warnings (my_edata
, malloc_warning
);
2341 #endif /* not WINDOWSNT */
2343 #if !defined (SYSTEM_MALLOC) && defined (HAVE_GTK_AND_PTHREAD) && !defined SYNC_INPUT
2344 /* Pthread may call malloc before main, and then we will get an endless
2345 loop, because pthread_self (see alloc.c) calls malloc the first time
2346 it is called on some systems. */
2347 reset_malloc_hooks ();
2349 #ifdef DOUG_LEA_MALLOC
2350 malloc_state_ptr
= malloc_get_state ();
2353 #ifdef USE_MMAP_FOR_BUFFERS
2356 unexec (SDATA (filename
),
2357 !NILP (symfile
) ? SDATA (symfile
) : 0, my_edata
, 0, 0);
2358 #ifdef USE_MMAP_FOR_BUFFERS
2361 #ifdef DOUG_LEA_MALLOC
2362 free (malloc_state_ptr
);
2367 return unbind_to (count
, Qnil
);
2370 #endif /* not HAVE_SHM */
2372 #endif /* not CANNOT_DUMP */
2375 /* Recover from setlocale (LC_ALL, ""). */
2379 /* The Emacs Lisp reader needs LC_NUMERIC to be "C",
2380 so that numbers are read and printed properly for Emacs Lisp. */
2381 setlocale (LC_NUMERIC
, "C");
2384 /* Set system locale CATEGORY, with previous locale *PLOCALE, to
2387 synchronize_locale (category
, plocale
, desired_locale
)
2389 Lisp_Object
*plocale
;
2390 Lisp_Object desired_locale
;
2392 if (! EQ (*plocale
, desired_locale
))
2394 *plocale
= desired_locale
;
2395 setlocale (category
, (STRINGP (desired_locale
)
2396 ? (char *) SDATA (desired_locale
)
2401 /* Set system time locale to match Vsystem_time_locale, if possible. */
2403 synchronize_system_time_locale ()
2405 synchronize_locale (LC_TIME
, &Vprevious_system_time_locale
,
2406 Vsystem_time_locale
);
2409 /* Set system messages locale to match Vsystem_messages_locale, if
2412 synchronize_system_messages_locale ()
2415 synchronize_locale (LC_MESSAGES
, &Vprevious_system_messages_locale
,
2416 Vsystem_messages_locale
);
2419 #endif /* HAVE_SETLOCALE */
2426 decode_env_path (evarname
, defalt
)
2427 char *evarname
, *defalt
;
2429 register char *path
, *p
;
2430 Lisp_Object lpath
, element
, tem
;
2432 /* It's okay to use getenv here, because this function is only used
2433 to initialize variables when Emacs starts up, and isn't called
2436 path
= (char *) getenv (evarname
);
2442 /* Ensure values from the environment use the proper directory separator. */
2445 p
= alloca (strlen (path
) + 1);
2449 if ('/' == DIRECTORY_SEP
)
2450 dostounix_filename (path
);
2452 unixtodos_filename (path
);
2458 p
= index (path
, SEPCHAR
);
2459 if (!p
) p
= path
+ strlen (path
);
2460 element
= (p
- path
? make_string (path
, p
- path
)
2461 : build_string ("."));
2463 /* Add /: to the front of the name
2464 if it would otherwise be treated as magic. */
2465 tem
= Ffind_file_name_handler (element
, Qt
);
2467 /* However, if the handler says "I'm safe",
2468 don't bother adding /:. */
2472 prop
= Fget (tem
, intern ("safe-magic"));
2478 element
= concat2 (build_string ("/:"), element
);
2480 lpath
= Fcons (element
, lpath
);
2486 return Fnreverse (lpath
);
2489 DEFUN ("daemonp", Fdaemonp
, Sdaemonp
, 0, 0, 0,
2490 doc
: /* Return non-nil if the current emacs process is a daemon.
2491 If the daemon was given a name argument, return that name. */)
2496 return build_string (daemon_name
);
2503 DEFUN ("daemon-initialized", Fdaemon_initialized
, Sdaemon_initialized
, 0, 0, 0,
2504 doc
: /* Mark the Emacs daemon as being initialized.
2505 This finishes the daemonization process by doing the other half of detaching
2506 from the parent process and its tty file descriptors. */)
2512 error ("This function can only be called if emacs is run as a daemon");
2514 if (daemon_pipe
[1] < 0)
2515 error ("The daemon has already been initialized");
2517 if (NILP (Vafter_init_time
))
2518 error ("This function can only be called after loading the init files");
2520 /* Get rid of stdin, stdout and stderr. */
2521 nfd
= open ("/dev/null", O_RDWR
);
2527 /* Closing the pipe will notify the parent that it can exit.
2528 FIXME: In case some other process inherited the pipe, closing it here
2529 won't notify the parent because it's still open elsewhere, so we
2530 additionally send a byte, just to make sure the parent really exits.
2531 Instead, we should probably close the pipe in start-process and
2532 call-process to make sure the pipe is never inherited by
2534 write (daemon_pipe
[1], "\n", 1);
2535 close (daemon_pipe
[1]);
2536 /* Set it to an invalid value so we know we've already run this function. */
2537 daemon_pipe
[1] = -1;
2544 Qfile_name_handler_alist
= intern_c_string ("file-name-handler-alist");
2545 staticpro (&Qfile_name_handler_alist
);
2549 defsubr (&Sdump_emacs_data
);
2551 defsubr (&Sdump_emacs
);
2555 defsubr (&Skill_emacs
);
2557 defsubr (&Sinvocation_name
);
2558 defsubr (&Sinvocation_directory
);
2559 defsubr (&Sdaemonp
);
2560 defsubr (&Sdaemon_initialized
);
2562 DEFVAR_LISP ("command-line-args", &Vcommand_line_args
,
2563 doc
: /* Args passed by shell to Emacs, as a list of strings.
2564 Many arguments are deleted from the list as they are processed. */);
2566 DEFVAR_LISP ("system-type", &Vsystem_type
,
2567 doc
: /* The value is a symbol indicating the type of operating system you are using.
2569 `gnu' compiled for a GNU Hurd system.
2570 `gnu/linux' compiled for a GNU/Linux system.
2571 `gnu/kfreebsd' compiled for a GNU system with a FreeBSD kernel.
2572 `darwin' compiled for Darwin (GNU-Darwin, Mac OS X, ...).
2573 `ms-dos' compiled as an MS-DOS application.
2574 `windows-nt' compiled as a native W32 application.
2575 `cygwin' compiled using the Cygwin library.
2576 Anything else (in Emacs 23.1, the possibilities are: aix, berkeley-unix,
2577 hpux, irix, lynxos 3.0.1, usg-unix-v) indicates some sort of Unix system. */);
2578 Vsystem_type
= intern_c_string (SYSTEM_TYPE
);
2580 DEFVAR_LISP ("system-configuration", &Vsystem_configuration
,
2581 doc
: /* Value is string indicating configuration Emacs was built for.
2582 On MS-Windows, the value reflects the OS flavor and version on which
2583 Emacs is running. */);
2584 Vsystem_configuration
= build_string (EMACS_CONFIGURATION
);
2586 DEFVAR_LISP ("system-configuration-options", &Vsystem_configuration_options
,
2587 doc
: /* String containing the configuration options Emacs was built with. */);
2588 Vsystem_configuration_options
= build_string (EMACS_CONFIG_OPTIONS
);
2590 DEFVAR_BOOL ("noninteractive", &noninteractive1
,
2591 doc
: /* Non-nil means Emacs is running without interactive terminal. */);
2593 DEFVAR_LISP ("kill-emacs-hook", &Vkill_emacs_hook
,
2594 doc
: /* Hook to be run when `kill-emacs' is called.
2595 Since `kill-emacs' may be invoked when the terminal is disconnected (or
2596 in other similar situations), functions placed on this hook should not
2597 expect to be able to interact with the user. To ask for confirmation,
2598 see `kill-emacs-query-functions' instead.
2600 The hook is not run in batch mode, i.e., if `noninteractive' is non-nil. */);
2601 Vkill_emacs_hook
= Qnil
;
2603 DEFVAR_INT ("emacs-priority", &emacs_priority
,
2604 doc
: /* Priority for Emacs to run at.
2605 This value is effective only if set before Emacs is dumped,
2606 and only if the Emacs executable is installed with setuid to permit
2607 it to change priority. (Emacs sets its uid back to the real uid.)
2608 Currently, you need to define SET_EMACS_PRIORITY in `config.h'
2609 before you compile Emacs, to enable the code for this feature. */);
2612 DEFVAR_LISP ("path-separator", &Vpath_separator
,
2613 doc
: /* String containing the character that separates directories in
2614 search paths, such as PATH and other similar environment variables. */);
2617 Vpath_separator
= make_string (&c
, 1);
2620 DEFVAR_LISP ("invocation-name", &Vinvocation_name
,
2621 doc
: /* The program name that was used to run Emacs.
2622 Any directory names are omitted. */);
2624 DEFVAR_LISP ("invocation-directory", &Vinvocation_directory
,
2625 doc
: /* The directory in which the Emacs executable was found, to run it.
2626 The value is nil if that directory's name is not known. */);
2628 DEFVAR_LISP ("installation-directory", &Vinstallation_directory
,
2629 doc
: /* A directory within which to look for the `lib-src' and `etc' directories.
2630 This is non-nil when we can't find those directories in their standard
2631 installed locations, but we can find them near where the Emacs executable
2633 Vinstallation_directory
= Qnil
;
2635 DEFVAR_LISP ("system-messages-locale", &Vsystem_messages_locale
,
2636 doc
: /* System locale for messages. */);
2637 Vsystem_messages_locale
= Qnil
;
2639 DEFVAR_LISP ("previous-system-messages-locale",
2640 &Vprevious_system_messages_locale
,
2641 doc
: /* Most recently used system locale for messages. */);
2642 Vprevious_system_messages_locale
= Qnil
;
2644 DEFVAR_LISP ("system-time-locale", &Vsystem_time_locale
,
2645 doc
: /* System locale for time. */);
2646 Vsystem_time_locale
= Qnil
;
2648 DEFVAR_LISP ("previous-system-time-locale", &Vprevious_system_time_locale
,
2649 doc
: /* Most recently used system locale for time. */);
2650 Vprevious_system_time_locale
= Qnil
;
2652 DEFVAR_LISP ("before-init-time", &Vbefore_init_time
,
2653 doc
: /* Value of `current-time' before Emacs begins initialization. */);
2654 Vbefore_init_time
= Qnil
;
2656 DEFVAR_LISP ("after-init-time", &Vafter_init_time
,
2657 doc
: /* Value of `current-time' after loading the init files.
2658 This is nil during initialization. */);
2659 Vafter_init_time
= Qnil
;
2661 DEFVAR_BOOL ("inhibit-x-resources", &inhibit_x_resources
,
2662 doc
: /* If non-nil, X resources, Windows Registry settings, and NS defaults are not used. */);
2663 inhibit_x_resources
= 0;
2665 /* Make sure IS_DAEMON starts up as false. */
2669 /* arch-tag: 7bfd356a-c720-4612-8ab6-aa4222931c2e
2670 (do not change this comment) */