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 Free Software Foundation, Inc.
5 This file is part of GNU Emacs.
7 GNU Emacs is free software; you can redistribute it and/or modify
8 it under the terms of the GNU General Public License as published by
9 the Free Software Foundation; either version 2, or (at your option)
12 GNU Emacs is distributed in the hope that it will be useful,
13 but WITHOUT ANY WARRANTY; without even the implied warranty of
14 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
15 GNU General Public License for more details.
17 You should have received a copy of the GNU General Public License
18 along with GNU Emacs; see the file COPYING. If not, write to
19 the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
20 Boston, MA 02110-1301, USA. */
28 #include <sys/types.h>
40 #include <sys/ioctl.h>
45 #include <windows.h> /* just for w32.h */
47 #include "w32heap.h" /* for prototype of sbrk */
52 #include "intervals.h"
57 #include "blockinput.h"
58 #include "syssignal.h"
61 #include "termhooks.h"
71 #include <sys/resource.h>
74 #ifdef HAVE_PERSONALITY_LINUX32
75 #include <sys/personality.h>
83 #if !defined (USG) || defined (BSD_PGRPS)
85 #define setpgrp setpgid
89 extern void malloc_warning
P_ ((char *));
90 extern void set_time_zone_rule
P_ ((char *));
92 extern char *index
P_ ((const char *, int));
95 /* Make these values available in GDB, which doesn't see macros. */
103 int gdb_use_union
= 0;
105 int gdb_use_union
= 1;
107 EMACS_INT gdb_valbits
= VALBITS
;
108 EMACS_INT gdb_gctypebits
= GCTYPEBITS
;
110 EMACS_INT gdb_data_seg_bits
= DATA_SEG_BITS
;
112 EMACS_INT gdb_data_seg_bits
= 0;
114 EMACS_INT PVEC_FLAG
= PSEUDOVECTOR_FLAG
;
115 EMACS_INT gdb_array_mark_flag
= ARRAY_MARK_FLAG
;
117 /* Command line args from shell, as list of strings. */
118 Lisp_Object Vcommand_line_args
;
120 /* The name under which Emacs was invoked, with any leading directory
122 Lisp_Object Vinvocation_name
;
124 /* The directory name from which Emacs was invoked. */
125 Lisp_Object Vinvocation_directory
;
127 /* The directory name in which to find subdirs such as lisp and etc.
128 nil means get them only from PATH_LOADSEARCH. */
129 Lisp_Object Vinstallation_directory
;
131 /* Hook run by `kill-emacs' before it does really anything. */
132 Lisp_Object Vkill_emacs_hook
;
134 /* An empty lisp string. To avoid having to build any other. */
135 Lisp_Object empty_string
;
137 /* Search path separator. */
138 Lisp_Object Vpath_separator
;
140 /* Set nonzero after Emacs has started up the first time.
141 Prevents reinitialization of the Lisp world and keymaps
142 on subsequent starts. */
145 #ifdef DOUG_LEA_MALLOC
146 /* Preserves a pointer to the memory allocated that copies that
147 static data inside glibc's malloc. */
148 void *malloc_state_ptr
;
149 /* From glibc, a routine that returns a copy of the malloc internal state. */
150 extern void *malloc_get_state ();
151 /* From glibc, a routine that overwrites the malloc internal state. */
152 extern int malloc_set_state ();
153 /* Non-zero if the MALLOC_CHECK_ enviroment variable was set while
154 dumping. Used to work around a bug in glibc's malloc. */
155 int malloc_using_checking
;
158 /* Variable whose value is symbol giving operating system type. */
159 Lisp_Object Vsystem_type
;
161 /* Variable whose value is string giving configuration built for. */
162 Lisp_Object Vsystem_configuration
;
164 /* Variable whose value is string giving configuration options,
165 for use when reporting bugs. */
166 Lisp_Object Vsystem_configuration_options
;
168 Lisp_Object Qfile_name_handler_alist
;
170 /* Current and previous system locales for messages and time. */
171 Lisp_Object Vsystem_messages_locale
;
172 Lisp_Object Vprevious_system_messages_locale
;
173 Lisp_Object Vsystem_time_locale
;
174 Lisp_Object Vprevious_system_time_locale
;
176 /* If non-zero, emacs should not attempt to use a window-specific code,
177 but instead should use the virtual terminal under which it was started. */
178 int inhibit_window_system
;
180 /* If nonzero, set Emacs to run at this priority. This is also used
181 in child_setup and sys_suspend to make sure subshells run at normal
182 priority; those functions have their own extern declaration. */
183 EMACS_INT emacs_priority
;
185 /* If non-zero, a filter or a sentinel is running. Tested to save the match
186 data on the first attempt to change it inside asynchronous code. */
187 int running_asynch_code
;
191 extern int inherited_pgroup
;
194 #ifdef HAVE_X_WINDOWS
195 /* If non-zero, -d was specified, meaning we're using some window system. */
199 /* An address near the bottom of the stack.
200 Tells GC how to save a copy of the stack. */
203 /* The address where the heap starts (from the first sbrk (0) call). */
204 static void *my_heap_start
;
206 /* The gap between BSS end and heap start as far as we can tell. */
207 static unsigned long heap_bss_diff
;
209 /* If the gap between BSS end and heap start is larger than this we try to
210 work around it, and if that fails, output a warning in dump-emacs. */
211 #define MAX_HEAP_BSS_DIFF (1024*1024)
214 #ifdef HAVE_WINDOW_SYSTEM
215 extern Lisp_Object Vinitial_window_system
;
216 #endif /* HAVE_WINDOW_SYSTEM */
218 extern Lisp_Object Vauto_save_list_file_name
;
220 extern Lisp_Object Vinhibit_redisplay
;
222 #ifdef USG_SHARED_LIBRARIES
223 /* If nonzero, this is the place to put the end of the writable segment
226 unsigned int bss_end
= 0;
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 /* Save argv and argc. */
243 static void sort_args ();
244 void syms_of_emacs ();
246 /* MSVC needs each string be shorter than 2048 bytes, so the usage
247 strings below are split to not overflow this limit. */
249 Usage: %s [OPTION-OR-FILENAME]...\n\
251 Run Emacs, the extensible, customizable, self-documenting real-time\n\
252 display editor. The recommended way to start Emacs for normal editing\n\
253 is with no options at all.\n\
255 Run M-x info RET m emacs RET m emacs invocation RET inside Emacs to\n\
256 read the main documentation for these command-line arguments.\n\
258 Initialization options:\n\
260 --batch do not do interactive display; implies -q\n\
261 --debug-init enable Emacs Lisp debugger for init file\n\
262 --display, -d DISPLAY use X server DISPLAY\n\
263 --multibyte, --no-unibyte inhibit the effect of EMACS_UNIBYTE\n\
264 --no-desktop do not load a saved desktop\n\
265 --no-init-file, -q load neither ~/.emacs nor default.el\n\
266 --no-shared-memory, -nl do not use shared memory\n\
267 --no-site-file do not load site-start.el\n\
268 --no-splash do not display a splash screen on startup\n\
269 --no-window-system, -nw do not communicate with X, ignoring $DISPLAY\n\
270 --quick, -Q equivalent to -q --no-site-file --no-splash\n\
271 --script FILE run FILE as an Emacs Lisp script\n\
272 --terminal, -t DEVICE use DEVICE for terminal I/O\n\
273 --unibyte, --no-multibyte run Emacs in unibyte mode\n\
274 --user, -u USER load ~USER/.emacs instead of your own\n\
280 FILE visit FILE using find-file\n\
281 +LINE FILE visit FILE using find-file, then go to line LINE\n\
282 +LINE:COLUMN FILE visit FILE using find-file, then go to line LINE,\n\
284 --directory, -L DIR add DIR to variable load-path\n\
285 --eval EXPR evaluate Emacs Lisp expression EXPR\n\
286 --execute EXPR evaluate Emacs Lisp expression EXPR\n\
287 --file FILE visit FILE using find-file\n\
288 --find-file FILE visit FILE using find-file\n\
289 --funcall, -f FUNC call Emacs Lisp function FUNC with no arguments\n\
290 --insert FILE insert contents of FILE into current buffer\n\
291 --kill exit without asking for confirmation\n\
292 --load, -l FILE load Emacs Lisp FILE using the load function\n\
293 --visit FILE visit FILE using find-file\n\
299 --background-color, -bg COLOR window background color\n\
300 --basic-display, -D disable many display features;\n\
301 used for debugging Emacs\n\
302 --border-color, -bd COLOR main border color\n\
303 --border-width, -bw WIDTH width of main border\n\
304 --color, --color=MODE color mode for character terminals;\n\
305 MODE defaults to `auto', and can also\n\
306 be `never', `auto', `always',\n\
307 or a mode name like `ansi8'\n\
308 --cursor-color, -cr COLOR color of the Emacs cursor indicating point\n\
309 --font, -fn FONT default font; must be fixed-width\n\
310 --foreground-color, -fg COLOR window foreground color\n\
311 --fullheight, -fh make the first frame high as the screen\n\
312 --fullscreen, -fs make first frame fullscreen\n\
313 --fullwidth, -fw make the first frame wide as the screen\n\
314 --geometry, -g GEOMETRY window geometry\n\
315 --no-bitmap-icon, -nbi do not use picture of gnu for Emacs icon\n\
316 --iconic start Emacs in iconified state\n\
317 --internal-border, -ib WIDTH width between text and main border\n\
318 --line-spacing, -lsp PIXELS additional space to put between lines\n\
319 --mouse-color, -ms COLOR mouse cursor color in Emacs window\n\
320 --name NAME title for initial Emacs frame\n\
321 --no-blinking-cursor, -nbc disable blinking cursor\n\
322 --reverse-video, -r, -rv switch foreground and background\n\
323 --title, -T TITLE title for initial Emacs frame\n\
324 --vertical-scroll-bars, -vb enable vertical scroll bars\n\
325 --xrm XRESOURCES set additional X resources\n\
326 --help display this help and exit\n\
327 --version output version information and exit\n\
331 You can generally also specify long option names with a single -; for\n\
332 example, -batch as well as --batch. You can use any unambiguous\n\
333 abbreviation for a --option.\n\
335 Various environment variables and window system resources also affect\n\
336 Emacs' operation. See the main documentation.\n\
338 Report bugs to %s. First, please see the Bugs\n\
339 section of the Emacs manual or the file BUGS.\n"
342 /* Signal code for the fatal signal that was received. */
343 int fatal_error_code
;
345 /* Nonzero if handling a fatal error already. */
346 int fatal_error_in_progress
;
348 /* If non-null, call this function from fatal_error_signal before
349 committing suicide. */
351 void (*fatal_error_signal_hook
) P_ ((void));
353 #ifdef HAVE_GTK_AND_PTHREAD
354 /* When compiled with GTK and running under Gnome, multiple threads meay be
355 created. Keep track of our main thread to make sure signals are delivered
356 to it (see syssignal.h). */
358 pthread_t main_thread
;
364 handle_USR1_signal (sig
)
367 struct input_event buf
;
369 SIGNAL_THREAD_CHECK (sig
);
370 bzero (&buf
, sizeof buf
);
371 buf
.kind
= USER_SIGNAL_EVENT
;
372 buf
.frame_or_window
= selected_frame
;
374 kbd_buffer_store_event (&buf
);
380 handle_USR2_signal (sig
)
383 struct input_event buf
;
385 SIGNAL_THREAD_CHECK (sig
);
386 bzero (&buf
, sizeof buf
);
387 buf
.kind
= USER_SIGNAL_EVENT
;
389 buf
.frame_or_window
= selected_frame
;
391 kbd_buffer_store_event (&buf
);
395 /* Handle bus errors, invalid instruction, etc. */
397 fatal_error_signal (sig
)
400 SIGNAL_THREAD_CHECK (sig
);
401 fatal_error_code
= sig
;
402 signal (sig
, SIG_DFL
);
404 TOTALLY_UNBLOCK_INPUT
;
406 /* If fatal error occurs in code below, avoid infinite recursion. */
407 if (! fatal_error_in_progress
)
409 fatal_error_in_progress
= 1;
411 shut_down_emacs (sig
, 0, Qnil
);
415 LIB$
STOP (SS$_ABORT
);
417 /* Signal the same code; this time it will really be fatal.
418 Remember that since we're in a signal handler, the signal we're
419 going to send is probably blocked, so we have to unblock it if we
420 want to really receive it. */
422 sigunblock (sigmask (fatal_error_code
));
425 if (fatal_error_signal_hook
)
426 fatal_error_signal_hook ();
428 kill (getpid (), fatal_error_code
);
434 /* Handler for SIGDANGER. */
436 memory_warning_signal (sig
)
439 signal (sig
, memory_warning_signal
);
440 SIGNAL_THREAD_CHECK (sig
);
442 malloc_warning ("Operating system warns that virtual memory is running low.\n");
444 /* It might be unsafe to call do_auto_save now. */
445 force_auto_save_soon ();
449 /* We define abort, rather than using it from the library,
450 so that GDB can return from a breakpoint here.
451 MSDOS has its own definition in msdos.c. */
453 #if ! defined (DOS_NT) && ! defined (NO_ABORT)
455 #ifndef ABORT_RETURN_TYPE
456 #define ABORT_RETURN_TYPE void
462 kill (getpid (), SIGABRT
);
463 /* This shouldn't be executed, but it prevents a warning. */
469 /* Code for dealing with Lisp access to the Unix command line. */
472 init_cmdargs (argc
, argv
, skip_args
)
478 Lisp_Object name
, dir
, tem
;
479 int count
= SPECPDL_INDEX ();
480 Lisp_Object raw_name
;
485 raw_name
= build_string (argv
[0]);
487 /* Add /: to the front of the name
488 if it would otherwise be treated as magic. */
489 tem
= Ffind_file_name_handler (raw_name
, Qt
);
491 raw_name
= concat2 (build_string ("/:"), raw_name
);
493 Vinvocation_name
= Ffile_name_nondirectory (raw_name
);
494 Vinvocation_directory
= Ffile_name_directory (raw_name
);
496 /* If we got no directory in argv[0], search PATH to find where
497 Emacs actually came from. */
498 if (NILP (Vinvocation_directory
))
501 int yes
= openp (Vexec_path
, Vinvocation_name
,
502 Vexec_suffixes
, &found
, make_number (X_OK
));
505 /* Add /: to the front of the name
506 if it would otherwise be treated as magic. */
507 tem
= Ffind_file_name_handler (found
, Qt
);
509 found
= concat2 (build_string ("/:"), found
);
510 Vinvocation_directory
= Ffile_name_directory (found
);
514 if (!NILP (Vinvocation_directory
)
515 && NILP (Ffile_name_absolute_p (Vinvocation_directory
)))
516 /* Emacs was started with relative path, like ./emacs.
518 Vinvocation_directory
= Fexpand_file_name (Vinvocation_directory
, Qnil
);
520 Vinstallation_directory
= Qnil
;
522 if (!NILP (Vinvocation_directory
))
524 dir
= Vinvocation_directory
;
525 name
= Fexpand_file_name (Vinvocation_name
, dir
);
528 Lisp_Object tem
, lib_src_exists
;
529 Lisp_Object etc_exists
, info_exists
;
531 /* See if dir contains subdirs for use by Emacs.
532 Check for the ones that would exist in a build directory,
533 not including lisp and info. */
534 tem
= Fexpand_file_name (build_string ("lib-src"), dir
);
535 lib_src_exists
= Ffile_exists_p (tem
);
538 /* MSDOS installations frequently remove lib-src, but we still
539 must set installation-directory, or else info won't find
540 its files (it uses the value of installation-directory). */
541 tem
= Fexpand_file_name (build_string ("info"), dir
);
542 info_exists
= Ffile_exists_p (tem
);
547 if (!NILP (lib_src_exists
) || !NILP (info_exists
))
549 tem
= Fexpand_file_name (build_string ("etc"), dir
);
550 etc_exists
= Ffile_exists_p (tem
);
551 if (!NILP (etc_exists
))
553 Vinstallation_directory
554 = Ffile_name_as_directory (dir
);
559 /* See if dir's parent contains those subdirs. */
560 tem
= Fexpand_file_name (build_string ("../lib-src"), dir
);
561 lib_src_exists
= Ffile_exists_p (tem
);
565 /* See the MSDOS commentary above. */
566 tem
= Fexpand_file_name (build_string ("../info"), dir
);
567 info_exists
= Ffile_exists_p (tem
);
572 if (!NILP (lib_src_exists
) || !NILP (info_exists
))
574 tem
= Fexpand_file_name (build_string ("../etc"), dir
);
575 etc_exists
= Ffile_exists_p (tem
);
576 if (!NILP (etc_exists
))
578 tem
= Fexpand_file_name (build_string (".."), dir
);
579 Vinstallation_directory
580 = Ffile_name_as_directory (tem
);
585 /* If the Emacs executable is actually a link,
586 next try the dir that the link points into. */
587 tem
= Ffile_symlink_p (name
);
590 name
= Fexpand_file_name (tem
, dir
);
591 dir
= Ffile_name_directory (name
);
598 Vcommand_line_args
= Qnil
;
600 for (i
= argc
- 1; i
>= 0; i
--)
602 if (i
== 0 || i
> skip_args
)
603 /* For the moment, we keep arguments as is in unibyte strings.
604 They are decoded in the function command-line after we know
605 locale-coding-system. */
607 = Fcons (make_unibyte_string (argv
[i
], strlen (argv
[i
])),
611 unbind_to (count
, Qnil
);
614 DEFUN ("invocation-name", Finvocation_name
, Sinvocation_name
, 0, 0, 0,
615 doc
: /* Return the program name that was used to run Emacs.
616 Any directory names are omitted. */)
619 return Fcopy_sequence (Vinvocation_name
);
622 DEFUN ("invocation-directory", Finvocation_directory
, Sinvocation_directory
,
624 doc
: /* Return the directory name in which the Emacs executable was located. */)
627 return Fcopy_sequence (Vinvocation_directory
);
632 #ifdef LINK_CRTL_SHARE
633 #ifdef SHARABLE_LIB_BUG
634 extern noshare
char **environ
;
635 #endif /* SHARABLE_LIB_BUG */
636 #endif /* LINK_CRTL_SHARE */
640 /* A valid but unlikely value for the TZ environment value.
641 It is OK (though a bit slower) if the user actually chooses this value. */
642 static char dump_tz
[] = "UtC0";
645 #ifndef ORDINARY_LINK
646 /* We don't include crtbegin.o and crtend.o in the link,
647 so these functions and variables might be missed.
648 Provide dummy definitions to avoid error.
649 (We don't have any real constructors or destructors.) */
651 #ifndef GCC_CTORS_IN_LIBC
652 void __do_global_ctors ()
654 void __do_global_ctors_aux ()
656 void __do_global_dtors ()
658 /* GNU/Linux has a bug in its library; avoid an error. */
660 char * __CTOR_LIST__
[2] = { (char *) (-1), 0 };
662 char * __DTOR_LIST__
[2] = { (char *) (-1), 0 };
663 #endif /* GCC_CTORS_IN_LIBC */
666 #endif /* __GNUC__ */
667 #endif /* ORDINARY_LINK */
669 /* Test whether the next argument in ARGV matches SSTR or a prefix of
670 LSTR (at least MINLEN characters). If so, then if VALPTR is non-null
671 (the argument is supposed to have a value) store in *VALPTR either
672 the next argument or the portion of this one after the equal sign.
673 ARGV is read starting at position *SKIPPTR; this index is advanced
674 by the number of arguments used.
676 Too bad we can't just use getopt for all of this, but we don't have
677 enough information to do it right. */
680 argmatch (argv
, argc
, sstr
, lstr
, minlen
, valptr
, skipptr
)
693 /* Don't access argv[argc]; give up in advance. */
694 if (argc
<= *skipptr
+ 1)
697 arg
= argv
[*skipptr
+1];
700 if (strcmp (arg
, sstr
) == 0)
704 *valptr
= argv
[*skipptr
+2];
711 arglen
= (valptr
!= NULL
&& (p
= index (arg
, '=')) != NULL
712 ? p
- arg
: strlen (arg
));
713 if (lstr
== 0 || arglen
< minlen
|| strncmp (arg
, lstr
, arglen
) != 0)
715 else if (valptr
== NULL
)
726 else if (argv
[*skipptr
+2] != NULL
)
728 *valptr
= argv
[*skipptr
+2];
738 #ifdef DOUG_LEA_MALLOC
740 /* malloc can be invoked even before main (e.g. by the dynamic
741 linker), so the dumped malloc state must be restored as early as
742 possible using this special hook. */
745 malloc_initialize_hook ()
748 extern char **environ
;
753 if (!malloc_using_checking
)
754 /* Work around a bug in glibc's malloc. MALLOC_CHECK_ must be
755 ignored if the heap to be restored was constructed without
756 malloc checking. Can't use unsetenv, since that calls malloc. */
760 for (p
= environ
; p
&& *p
; p
++)
761 if (strncmp (*p
, "MALLOC_CHECK_=", 14) == 0)
770 malloc_set_state (malloc_state_ptr
);
771 #ifndef XMALLOC_OVERRUN_CHECK
772 free (malloc_state_ptr
);
777 if (my_heap_start
== 0)
778 my_heap_start
= sbrk (0);
779 malloc_using_checking
= getenv ("MALLOC_CHECK_") != NULL
;
783 void (*__malloc_initialize_hook
) () = malloc_initialize_hook
;
785 #endif /* DOUG_LEA_MALLOC */
788 #define REPORT_EMACS_BUG_ADDRESS "bug-gnu-emacs@gnu.org"
789 #define REPORT_EMACS_BUG_PRETEST_ADDRESS "multi-tty@lists.fnord.hu"
791 /* This function is used to determine an address to which bug report should
795 bug_reporting_address ()
801 temp
= Fsymbol_value (intern ("emacs-version"));
803 /* When `emacs-version' is invalid, use normal address. */
805 return REPORT_EMACS_BUG_ADDRESS
;
807 string
= SDATA (temp
);
809 /* Count dots in `emacs-version'. */
817 /* When `emacs-version' has at least three dots, it is development or
818 pretest version of Emacs. */
819 return count
>= 3 ? REPORT_EMACS_BUG_PRETEST_ADDRESS
: REPORT_EMACS_BUG_ADDRESS
;
839 char stack_bottom_variable
;
840 int do_initial_setlocale
;
845 #ifdef HAVE_SETRLIMIT
852 extern Lisp_Object
*stack_base
;
858 extern char my_endbss
[];
859 extern char *my_endbss_static
;
861 if (my_heap_start
== 0)
862 my_heap_start
= sbrk (0);
864 heap_bss_diff
= (char *)my_heap_start
- max (my_endbss
, my_endbss_static
);
867 #ifdef LINUX_SBRK_BUG
871 #ifdef RUN_TIME_REMAP
873 run_time_remap (argv
[0]);
878 unexec_init_emacs_zone ();
881 sort_args (argc
, argv
);
883 while (argv
[argc
]) argc
++;
885 if (argmatch (argv
, argc
, "-version", "--version", 3, NULL
, &skip_args
)
886 /* We don't know the version number unless this is a dumped Emacs.
887 So ignore --version otherwise. */
891 tem
= Fsymbol_value (intern ("emacs-version"));
894 fprintf (stderr
, "Invalid value of `emacs-version'\n");
899 printf ("GNU Emacs %s\n", SDATA (tem
));
900 printf ("Copyright (C) 2005 Free Software Foundation, Inc.\n");
901 printf ("GNU Emacs comes with ABSOLUTELY NO WARRANTY.\n");
902 printf ("You may redistribute copies of Emacs\n");
903 printf ("under the terms of the GNU General Public License.\n");
904 printf ("For more information about these matters, ");
905 printf ("see the file named COPYING.\n");
910 #ifdef HAVE_PERSONALITY_LINUX32
911 /* See if there is a gap between the end of BSS and the heap.
912 In that case, set personality and exec ourself again. */
914 && (strcmp (argv
[argc
-1], "dump") == 0
915 || strcmp (argv
[argc
-1], "bootstrap") == 0)
916 && heap_bss_diff
> MAX_HEAP_BSS_DIFF
)
918 if (! getenv ("EMACS_HEAP_EXEC"))
920 /* Set this so we only do this once. */
921 putenv("EMACS_HEAP_EXEC=true");
923 /* A flag to turn off address randomization which is introduced
924 in linux kernel shipped with fedora core 4 */
925 #define ADD_NO_RANDOMIZE 0x0040000
926 personality (PER_LINUX32
| ADD_NO_RANDOMIZE
);
927 #undef ADD_NO_RANDOMIZE
929 execvp (argv
[0], argv
);
931 /* If the exec fails, try to dump anyway. */
935 #endif /* HAVE_PERSONALITY_LINUX32 */
938 /* Map in shared memory, if we are using that. */
940 if (argmatch (argv
, argc
, "-nl", "--no-shared-memory", 6, NULL
, &skip_args
))
943 /* The shared memory was just restored, which clobbered this. */
949 /* The shared memory was just restored, which clobbered this. */
956 extern int malloc_cookie
;
957 /* This helps out unexnext.c. */
959 if (malloc_jumpstart (malloc_cookie
) != 0)
960 printf ("malloc jumpstart failed!\n");
965 /* Skip process serial number passed in the form -psn_x_y as
966 command-line argument. The WindowServer adds this option when
967 Emacs is invoked from the Finder or by the `open' command. In
968 these cases, the working directory becomes `/', so we change it
969 to the user's home directory. */
970 if (argc
> skip_args
+ 1 && strncmp (argv
[skip_args
+1], "-psn_", 5) == 0)
972 chdir (getenv ("HOME"));
978 /* If -map specified, map the data file in. */
981 if (argmatch (argv
, argc
, "-map", "--map-data", 3, &file
, &skip_args
))
985 #ifdef LINK_CRTL_SHARE
986 #ifdef SHARABLE_LIB_BUG
987 /* Bletcherous shared libraries! */
989 stdin
= fdopen (0, "r");
991 stdout
= fdopen (1, "w");
993 stderr
= fdopen (2, "w");
996 #endif /* SHARABLE_LIB_BUG */
997 #endif /* LINK_CRTL_SHARE */
1000 #if defined (HAVE_SETRLIMIT) && defined (RLIMIT_STACK)
1001 /* Extend the stack space available.
1002 Don't do that if dumping, since some systems (e.g. DJGPP)
1003 might define a smaller stack limit at that time. */
1006 && (!noninteractive
|| initialized
)
1008 && !getrlimit (RLIMIT_STACK
, &rlim
))
1011 extern size_t re_max_failures
;
1012 /* Approximate the amount regex.c needs per unit of re_max_failures. */
1013 int ratio
= 20 * sizeof (char *);
1014 /* Then add 33% to cover the size of the smaller stacks that regex.c
1015 successively allocates and discards, on its way to the maximum. */
1017 /* Add in some extra to cover
1018 what we're likely to use for other reasons. */
1019 newlim
= re_max_failures
* ratio
+ 200000;
1021 /* NetBSD (at least NetBSD 1.2G and former) has a bug in its
1022 stack allocation routine for new process that the allocation
1023 fails if stack limit is not on page boundary. So, round up the
1024 new limit to page boundary. */
1025 newlim
= (newlim
+ getpagesize () - 1) / getpagesize () * getpagesize();
1027 if (newlim
> rlim
.rlim_max
)
1029 newlim
= rlim
.rlim_max
;
1030 /* Don't let regex.c overflow the stack we have. */
1031 re_max_failures
= (newlim
- 200000) / ratio
;
1033 if (rlim
.rlim_cur
< newlim
)
1034 rlim
.rlim_cur
= newlim
;
1036 setrlimit (RLIMIT_STACK
, &rlim
);
1038 #endif /* HAVE_SETRLIMIT and RLIMIT_STACK */
1040 /* Record (approximately) where the stack begins. */
1041 stack_bottom
= &stack_bottom_variable
;
1043 #ifdef USG_SHARED_LIBRARIES
1045 brk ((void *)bss_end
);
1050 #ifndef SYSTEM_MALLOC
1051 /* Arrange to get warning messages as memory fills up. */
1052 memory_warnings (0, malloc_warning
);
1054 /* Call malloc at least once, to run the initial __malloc_hook.
1055 Also call realloc and free for consistency. */
1056 free (realloc (malloc (4), 4));
1059 /* Arrange to disable interrupt input inside malloc etc. */
1060 uninterrupt_malloc ();
1061 # endif /* not SYNC_INPUT */
1062 #endif /* not SYSTEM_MALLOC */
1064 #ifdef HAVE_GTK_AND_PTHREAD
1065 main_thread
= pthread_self ();
1066 #endif /* HAVE_GTK_AND_PTHREAD */
1068 #if defined (MSDOS) || defined (WINDOWSNT)
1069 /* We do all file input/output as binary files. When we need to translate
1070 newlines, we do that manually. */
1072 #endif /* MSDOS || WINDOWSNT */
1076 if (!isatty (fileno (stdin
)))
1077 setmode (fileno (stdin
), O_BINARY
);
1078 if (!isatty (fileno (stdout
)))
1081 setmode (fileno (stdout
), O_BINARY
);
1083 #else /* not __DJGPP__ >= 2 */
1084 (stdin
)->_flag
&= ~_IOTEXT
;
1085 (stdout
)->_flag
&= ~_IOTEXT
;
1086 (stderr
)->_flag
&= ~_IOTEXT
;
1087 #endif /* not __DJGPP__ >= 2 */
1090 #ifdef SET_EMACS_PRIORITY
1092 nice (emacs_priority
);
1094 #endif /* SET_EMACS_PRIORITY */
1096 /* Skip initial setlocale if LC_ALL is "C", as it's not needed in that case.
1097 The build procedure uses this while dumping, to ensure that the
1098 dumped Emacs does not have its system locale tables initialized,
1099 as that might cause screwups when the dumped Emacs starts up. */
1101 char *lc_all
= getenv ("LC_ALL");
1102 do_initial_setlocale
= ! lc_all
|| strcmp (lc_all
, "C");
1105 /* Set locale now, so that initial error messages are localized properly.
1106 fixup_locale must wait until later, since it builds strings. */
1107 if (do_initial_setlocale
)
1108 setlocale (LC_ALL
, "");
1110 #ifdef EXTRA_INITIALIZE
1114 inhibit_window_system
= 0;
1116 /* Handle the -t switch, which specifies filename to use as terminal. */
1120 if (argmatch (argv
, argc
, "-t", "--terminal", 4, &term
, &skip_args
))
1125 result
= emacs_open (term
, O_RDWR
, 0);
1128 char *errstring
= strerror (errno
);
1129 fprintf (stderr
, "%s: %s: %s\n", argv
[0], term
, errstring
);
1135 fprintf (stderr
, "%s: %s: not a tty\n", argv
[0], term
);
1138 fprintf (stderr
, "Using %s\n", term
);
1139 #ifdef HAVE_WINDOW_SYSTEM
1140 inhibit_window_system
= 1; /* -t => -nw */
1147 /* Command line option --no-windows is deprecated and thus not mentioned
1148 in the manual and usage informations. */
1149 if (argmatch (argv
, argc
, "-nw", "--no-window-system", 6, NULL
, &skip_args
)
1150 || argmatch (argv
, argc
, "-nw", "--no-windows", 6, NULL
, &skip_args
))
1151 inhibit_window_system
= 1;
1153 /* Handle the -batch switch, which means don't do interactive display. */
1155 if (argmatch (argv
, argc
, "-batch", "--batch", 5, NULL
, &skip_args
))
1158 Vundo_outer_limit
= Qnil
;
1160 if (argmatch (argv
, argc
, "-script", "--script", 3, &junk
, &skip_args
))
1162 noninteractive
= 1; /* Set batch mode. */
1163 /* Convert --script to --scriptload, un-skip it, and sort again
1164 so that it will be handled in proper sequence. */
1165 argv
[skip_args
- 1] = "-scriptload";
1167 sort_args (argc
, argv
);
1170 /* Handle the --help option, which gives a usage message. */
1171 if (argmatch (argv
, argc
, "-help", "--help", 3, NULL
, &skip_args
))
1173 printf (USAGE1
, argv
[0], USAGE2
);
1175 printf (USAGE4
, bug_reporting_address ());
1179 if (! noninteractive
)
1184 inherited_pgroup
= EMACS_GETPGRP (0);
1185 setpgrp (0, getpid ());
1188 #if defined (USG5) && defined (INTERRUPT_INPUT)
1196 /* Don't catch SIGHUP if dumping. */
1203 sigblock (sigmask (SIGHUP
));
1204 /* In --batch mode, don't catch SIGHUP if already ignored.
1205 That makes nohup work. */
1206 if (! noninteractive
1207 || signal (SIGHUP
, SIG_IGN
) != SIG_IGN
)
1208 signal (SIGHUP
, fatal_error_signal
);
1209 sigunblock (sigmask (SIGHUP
));
1214 ! noninteractive
|| initialized
1220 /* Don't catch these signals in batch mode if dumping.
1221 On some machines, this sets static data that would make
1222 signal fail to work right when the dumped Emacs is run. */
1223 signal (SIGQUIT
, fatal_error_signal
);
1224 signal (SIGILL
, fatal_error_signal
);
1225 signal (SIGTRAP
, fatal_error_signal
);
1227 signal (SIGUSR1
, handle_USR1_signal
);
1229 signal (SIGUSR2
, handle_USR2_signal
);
1233 signal (SIGABRT
, fatal_error_signal
);
1236 signal (SIGHWE
, fatal_error_signal
);
1239 signal (SIGPRE
, fatal_error_signal
);
1242 signal (SIGORE
, fatal_error_signal
);
1245 signal (SIGUME
, fatal_error_signal
);
1248 signal (SIGDLK
, fatal_error_signal
);
1251 signal (SIGCPULIM
, fatal_error_signal
);
1254 /* This is missing on some systems - OS/2, for example. */
1255 signal (SIGIOT
, fatal_error_signal
);
1258 signal (SIGEMT
, fatal_error_signal
);
1260 signal (SIGFPE
, fatal_error_signal
);
1262 signal (SIGBUS
, fatal_error_signal
);
1264 signal (SIGSEGV
, fatal_error_signal
);
1266 signal (SIGSYS
, fatal_error_signal
);
1268 signal (SIGTERM
, fatal_error_signal
);
1270 signal (SIGXCPU
, fatal_error_signal
);
1273 signal (SIGXFSZ
, fatal_error_signal
);
1274 #endif /* SIGXFSZ */
1277 /* This just means available memory is getting low. */
1278 signal (SIGDANGER
, memory_warning_signal
);
1282 /* 20 is SIGCHLD, 21 is SIGTTIN, 22 is SIGTTOU. */
1283 signal (SIGXCPU
, fatal_error_signal
);
1285 signal (SIGIOINT
, fatal_error_signal
);
1287 signal (SIGGRANT
, fatal_error_signal
);
1288 signal (SIGRETRACT
, fatal_error_signal
);
1289 signal (SIGSOUND
, fatal_error_signal
);
1290 signal (SIGMSG
, fatal_error_signal
);
1294 noninteractive1
= noninteractive
;
1296 /* Perform basic initializations (not merely interning symbols). */
1303 init_charset_once ();
1304 init_coding_once ();
1305 init_syntax_once (); /* Create standard syntax table. */
1306 init_category_once (); /* Create standard category table. */
1307 /* Must be done before init_buffer. */
1308 init_casetab_once ();
1309 init_buffer_once (); /* Create buffer table and some buffers. */
1310 init_minibuf_once (); /* Create list of minibuffers. */
1311 /* Must precede init_window_once. */
1313 /* Call syms_of_xfaces before init_window_once because that
1314 function creates Vterminal_frame. Termcap frames now use
1315 faces, and the face implementation uses some symbols as
1318 /* XXX syms_of_keyboard uses some symbols in keymap.c. It would
1319 be better to arrange things not to have this dependency. */
1321 /* Call syms_of_keyboard before init_window_once because
1322 keyboard sets up symbols that include some face names that
1323 the X support will want to use. This can happen when
1324 CANNOT_DUMP is defined. */
1325 syms_of_keyboard ();
1328 /* init_window_once calls make_terminal_frame which on Mac OS
1329 creates a full-fledge output_mac type frame. This does not
1330 work correctly before syms_of_textprop, syms_of_macfns,
1331 syms_of_ccl, syms_of_fontset, syms_of_xterm, syms_of_search,
1332 syms_of_frame, mac_term_init, and init_keyboard have already
1334 syms_of_textprop ();
1340 syms_of_macselect ();
1346 mac_term_init (build_string ("Mac"), NULL
, NULL
);
1350 init_window_once (); /* Init the window system. */
1351 init_fileio_once (); /* Must precede any path manipulation. */
1352 #ifdef HAVE_WINDOW_SYSTEM
1353 init_fringe_once (); /* Swap bitmaps if necessary. */
1354 #endif /* HAVE_WINDOW_SYSTEM */
1359 if (do_initial_setlocale
)
1362 Vsystem_messages_locale
= Vprevious_system_messages_locale
;
1363 Vsystem_time_locale
= Vprevious_system_time_locale
;
1368 #ifdef CLASH_DETECTION
1374 running_asynch_code
= 0;
1376 /* Handle --unibyte and the EMACS_UNIBYTE envvar,
1377 but not while dumping. */
1380 int inhibit_unibyte
= 0;
1382 /* --multibyte overrides EMACS_UNIBYTE. */
1383 if (argmatch (argv
, argc
, "-no-unibyte", "--no-unibyte", 4, NULL
, &skip_args
)
1384 || argmatch (argv
, argc
, "-multibyte", "--multibyte", 4, NULL
, &skip_args
)
1385 /* Ignore EMACS_UNIBYTE before dumping. */
1386 || (!initialized
&& noninteractive
))
1387 inhibit_unibyte
= 1;
1389 /* --unibyte requests that we set up to do everything with single-byte
1390 buffers and strings. We need to handle this before calling
1391 init_lread, init_editfns and other places that generate Lisp strings
1392 from text in the environment. */
1393 /* Actually this shouldn't be needed as of 20.4 in a generally
1394 unibyte environment. As handa says, environment values
1395 aren't now decoded; also existing buffers are now made
1396 unibyte during startup if .emacs sets unibyte. Tested with
1397 8-bit data in environment variables and /etc/passwd, setting
1398 unibyte and Latin-1 in .emacs. -- Dave Love */
1399 if (argmatch (argv
, argc
, "-unibyte", "--unibyte", 4, NULL
, &skip_args
)
1400 || argmatch (argv
, argc
, "-no-multibyte", "--no-multibyte", 4, NULL
, &skip_args
)
1401 || (getenv ("EMACS_UNIBYTE") && !inhibit_unibyte
))
1403 Lisp_Object old_log_max
;
1404 Lisp_Object symbol
, tail
;
1406 symbol
= intern ("default-enable-multibyte-characters");
1407 Fset (symbol
, Qnil
);
1411 /* Erase pre-dump messages in *Messages* now so no abort. */
1412 old_log_max
= Vmessage_log_max
;
1413 XSETFASTINT (Vmessage_log_max
, 0);
1414 message_dolog ("", 0, 1, 0);
1415 Vmessage_log_max
= old_log_max
;
1418 for (tail
= Vbuffer_alist
; CONSP (tail
);
1423 buffer
= Fcdr (XCAR (tail
));
1424 /* Verify that all buffers are empty now, as they
1426 if (BUF_Z (XBUFFER (buffer
)) > BUF_BEG (XBUFFER (buffer
)))
1428 /* It is safe to do this crudely in an empty buffer. */
1429 XBUFFER (buffer
)->enable_multibyte_characters
= Qnil
;
1435 = argmatch (argv
, argc
, "-nl", "--no-loadup", 6, NULL
, &skip_args
);
1438 #ifdef HAVE_X_WINDOWS
1439 /* Stupid kludge to catch command-line display spec. We can't
1440 handle this argument entirely in window system dependent code
1441 because we don't even know which window system dependent code
1442 to run until we've recognized this argument. */
1444 char *displayname
= 0;
1445 int count_before
= skip_args
;
1447 /* Skip any number of -d options, but only use the last one. */
1450 int count_before_this
= skip_args
;
1452 if (argmatch (argv
, argc
, "-d", "--display", 3, &displayname
, &skip_args
))
1454 else if (argmatch (argv
, argc
, "-display", 0, 3, &displayname
, &skip_args
))
1459 count_before
= count_before_this
;
1462 /* If we have the form --display=NAME,
1463 convert it into -d name.
1464 This requires inserting a new element into argv. */
1465 if (displayname
!= 0 && skip_args
- count_before
== 1)
1467 char **new = (char **) xmalloc (sizeof (char *) * (argc
+ 2));
1470 for (j
= 0; j
< count_before
+ 1; j
++)
1472 new[count_before
+ 1] = "-d";
1473 new[count_before
+ 2] = displayname
;
1474 for (j
= count_before
+ 2; j
<argc
; j
++)
1475 new[j
+ 1] = argv
[j
];
1479 /* Change --display to -d, when its arg is separate. */
1480 else if (displayname
!= 0 && skip_args
> count_before
1481 && argv
[count_before
+ 1][1] == '-')
1482 argv
[count_before
+ 1] = "-d";
1484 /* Don't actually discard this arg. */
1485 skip_args
= count_before
;
1489 /* argmatch must not be used after here,
1490 except when bulding temacs
1491 because the -d argument has not been skipped in skip_args. */
1494 /* Call early 'cause init_environment needs it. */
1496 /* Set defaults for several environment variables. */
1498 init_environment (argc
, argv
, skip_args
);
1505 /* Initialize environment from registry settings. */
1506 init_environment (argv
);
1507 init_ntproc (); /* must precede init_editfns. */
1510 #if defined (MAC_OSX) && defined (HAVE_CARBON)
1512 init_mac_osx_environment ();
1515 /* egetenv is a pretty low-level facility, which may get called in
1516 many circumstances; it seems flimsy to put off initializing it
1517 until calling init_callproc. */
1518 set_process_environment ();
1519 /* AIX crashes are reported in system versions 3.2.3 and 3.2.4
1520 if this is not done. Do it after set_process_environment so that we
1521 don't pollute Vprocess_environment. */
1522 /* Setting LANG here will defeat the startup locale processing... */
1527 init_buffer (); /* Init default directory of main buffer. */
1529 init_callproc_1 (); /* Must precede init_cmdargs and init_sys_modes. */
1530 init_cmdargs (argc
, argv
, skip_args
); /* Must precede init_lread. */
1534 /* Erase any pre-dump messages in the message log, to avoid confusion. */
1535 Lisp_Object old_log_max
;
1536 old_log_max
= Vmessage_log_max
;
1537 XSETFASTINT (Vmessage_log_max
, 0);
1538 message_dolog ("", 0, 1, 0);
1539 Vmessage_log_max
= old_log_max
;
1542 init_callproc (); /* Must follow init_cmdargs but not init_sys_modes. */
1545 /* Intern the names of all standard functions and variables;
1546 define standard keys. */
1550 /* The basic levels of Lisp must come first. */
1551 /* And data must come first of all
1552 for the sake of symbols like error-message. */
1554 /* Called before init_window_once for Mac OS Classic. */
1562 syms_of_floatfns ();
1566 syms_of_bytecode ();
1568 syms_of_casefiddle ();
1570 syms_of_callproc ();
1571 syms_of_category ();
1573 /* Called before init_window_once for Mac OS Classic. */
1578 #ifndef NO_DIR_LIBRARY
1580 #endif /* not NO_DIR_LIBRARY */
1586 syms_of_coding (); /* This should be after syms_of_fileio. */
1587 #ifdef CLASH_DETECTION
1588 syms_of_filelock ();
1589 #endif /* CLASH_DETECTION */
1592 /* syms_of_keymap (); */
1598 /* Called before init_window_once for Mac OS Classic. */
1609 /* Called before init_window_once for Mac OS Classic. */
1610 syms_of_textprop ();
1612 syms_of_composite ();
1618 #endif /* WINDOWSNT */
1621 #ifdef HAVE_WINDOW_SYSTEM
1624 #endif /* HAVE_WINDOW_SYSTEM */
1625 #ifdef HAVE_X_WINDOWS
1635 #endif /* HAVE_X_WINDOWS */
1639 /* Called before init_window_once for Mac OS Classic. */
1647 syms_of_w32select ();
1650 #endif /* HAVE_NTGUI */
1652 #if defined (MAC_OSX) && defined (HAVE_CARBON)
1656 syms_of_macselect ();
1658 #endif /* MAC_OSX && HAVE_CARBON */
1668 keys_of_casefiddle ();
1671 keys_of_keyboard ();
1678 /* Initialization that must be done even if the global variable
1679 initialized is non zero. */
1681 globals_of_w32fns ();
1682 globals_of_w32menu ();
1683 globals_of_w32select ();
1684 #endif /* HAVE_NTGUI */
1687 init_process (); /* init_display uses add_keyboard_wait_descriptor. */
1689 /* Called before init_window_once for Mac OS Classic. */
1690 init_keyboard (); /* This too must precede init_sys_modes. */
1693 init_vmsproc (); /* And this too. */
1695 if (!noninteractive
)
1698 init_vms_input ();/* init_display calls get_tty_size, that needs this. */
1700 init_display (); /* Determine terminal type. Calls init_sys_modes. */
1704 #ifdef HAVE_WINDOW_SYSTEM
1707 #endif /* HAVE_WINDOW_SYSTEM */
1722 /* Handle -l loadup, args passed by Makefile. */
1723 if (argmatch (argv
, argc
, "-l", "--load", 3, &file
, &skip_args
))
1724 Vtop_level
= Fcons (intern ("load"),
1725 Fcons (build_string (file
), Qnil
));
1726 /* Unless next switch is -nl, load "loadup.el" first thing. */
1728 Vtop_level
= Fcons (intern ("load"),
1729 Fcons (build_string ("loadup.el"), Qnil
));
1736 /* If the execution TZ happens to be the same as the dump TZ,
1737 change it to some other value and then change it back,
1738 to force the underlying implementation to reload the TZ info.
1739 This is needed on implementations that load TZ info from files,
1740 since the TZ file contents may differ between dump and execution. */
1741 char *tz
= getenv ("TZ");
1742 if (tz
&& !strcmp (tz
, dump_tz
))
1752 /* Set up for profiling. This is known to work on FreeBSD and
1753 GNU/Linux. It might work on some other systems too. Give it a
1754 try and tell us if it works on your system. To compile for
1755 profiling use something like `make CFLAGS="-pg -g -O -DPROFILING=1'. */
1756 #if defined (__FreeBSD__) || defined (__linux)
1760 extern void _mcleanup ();
1762 extern void safe_bcopy ();
1763 extern void dump_opcode_frequencies ();
1766 /* This uses safe_bcopy because that function comes first in the
1767 Emacs executable. It might be better to use something that
1768 gives the start of the text segment, but start_of_text is not
1769 defined on all systems now. */
1770 monstartup (safe_bcopy
, &etext
);
1779 #ifdef LOCALTIME_CACHE
1780 /* Some versions of localtime have a bug. They cache the value of the time
1781 zone rather than looking it up every time. Since localtime() is
1782 called to bolt the undumping time into the undumped emacs, this
1783 results in localtime ignoring the TZ environment variable.
1784 This flushes the new TZ value into localtime. */
1786 #endif /* defined (LOCALTIME_CACHE) */
1788 /* Enter editor command loop. This never returns. */
1794 /* Sort the args so we can find the most important ones
1795 at the beginning of argv. */
1797 /* First, here's a table of all the standard options. */
1799 struct standard_args
1807 struct standard_args standard_args
[] =
1809 { "-version", "--version", 150, 0 },
1811 { "-nl", "--no-shared-memory", 140, 0 },
1814 { "-map", "--map-data", 130, 0 },
1816 { "-t", "--terminal", 120, 1 },
1817 { "-nw", "--no-window-system", 110, 0 },
1818 { "-nw", "--no-windows", 110, 0 },
1819 { "-batch", "--batch", 100, 0 },
1820 { "-script", "--script", 100, 1 },
1821 { "-help", "--help", 90, 0 },
1822 { "-no-unibyte", "--no-unibyte", 83, 0 },
1823 { "-multibyte", "--multibyte", 82, 0 },
1824 { "-unibyte", "--unibyte", 81, 0 },
1825 { "-no-multibyte", "--no-multibyte", 80, 0 },
1826 { "-nl", "--no-loadup", 70, 0 },
1827 /* -d must come last before the options handled in startup.el. */
1828 { "-d", "--display", 60, 1 },
1829 { "-display", 0, 60, 1 },
1830 /* Now for the options handled in startup.el. */
1831 { "-Q", "--quick", 55, 0 },
1832 { "-quick", 0, 55, 0 },
1833 { "-q", "--no-init-file", 50, 0 },
1834 { "-no-init-file", 0, 50, 0 },
1835 { "-no-site-file", "--no-site-file", 40, 0 },
1836 { "-no-splash", "--no-splash", 40, 0 },
1837 { "-u", "--user", 30, 1 },
1838 { "-user", 0, 30, 1 },
1839 { "-debug-init", "--debug-init", 20, 0 },
1840 { "-nbi", "--no-bitmap-icon", 15, 0 },
1841 { "-iconic", "--iconic", 15, 0 },
1842 { "-D", "--basic-display", 12, 0},
1843 { "-basic-display", 0, 12, 0},
1844 { "-bg", "--background-color", 10, 1 },
1845 { "-background", 0, 10, 1 },
1846 { "-fg", "--foreground-color", 10, 1 },
1847 { "-foreground", 0, 10, 1 },
1848 { "-bd", "--border-color", 10, 1 },
1849 { "-bw", "--border-width", 10, 1 },
1850 { "-ib", "--internal-border", 10, 1 },
1851 { "-ms", "--mouse-color", 10, 1 },
1852 { "-cr", "--cursor-color", 10, 1 },
1853 { "-nbc", "--no-blinking-cursor", 10, 0 },
1854 { "-fn", "--font", 10, 1 },
1855 { "-font", 0, 10, 1 },
1856 { "-fs", "--fullscreen", 10, 0 },
1857 { "-fw", "--fullwidth", 10, 0 },
1858 { "-fh", "--fullheight", 10, 0 },
1859 { "-g", "--geometry", 10, 1 },
1860 { "-geometry", 0, 10, 1 },
1861 { "-T", "--title", 10, 1 },
1862 { "-title", 0, 10, 1 },
1863 { "-name", "--name", 10, 1 },
1864 { "-xrm", "--xrm", 10, 1 },
1865 { "-r", "--reverse-video", 5, 0 },
1867 { "-reverse", 0, 5, 0 },
1868 { "-hb", "--horizontal-scroll-bars", 5, 0 },
1869 { "-vb", "--vertical-scroll-bars", 5, 0 },
1870 { "-color", "--color", 5, 0},
1871 /* These have the same priority as ordinary file name args,
1872 so they are not reordered with respect to those. */
1873 { "-L", "--directory", 0, 1 },
1874 { "-directory", 0, 0, 1 },
1875 { "-l", "--load", 0, 1 },
1876 { "-load", 0, 0, 1 },
1877 { "-scriptload", "--scriptload", 0, 1 },
1878 { "-f", "--funcall", 0, 1 },
1879 { "-funcall", 0, 0, 1 },
1880 { "-eval", "--eval", 0, 1 },
1881 { "-execute", "--execute", 0, 1 },
1882 { "-find-file", "--find-file", 0, 1 },
1883 { "-visit", "--visit", 0, 1 },
1884 { "-file", "--file", 0, 1 },
1885 { "-insert", "--insert", 0, 1 },
1886 /* This should be processed after ordinary file name args and the like. */
1887 { "-kill", "--kill", -10, 0 },
1890 /* Reorder the elements of ARGV (assumed to have ARGC elements)
1891 so that the highest priority ones come first.
1892 Do not change the order of elements of equal priority.
1893 If an option takes an argument, keep it and its argument together.
1895 If an option that takes no argument appears more
1896 than once, eliminate all but one copy of it. */
1899 sort_args (argc
, argv
)
1903 char **new = (char **) xmalloc (sizeof (char *) * argc
);
1904 /* For each element of argv,
1905 the corresponding element of options is:
1906 0 for an option that takes no arguments,
1907 1 for an option that takes one argument, etc.
1908 -1 for an ordinary non-option argument. */
1909 int *options
= (int *) xmalloc (sizeof (int) * argc
);
1910 int *priority
= (int *) xmalloc (sizeof (int) * argc
);
1912 int incoming_used
= 1;
1916 /* Categorize all the options,
1917 and figure out which argv elts are option arguments. */
1918 for (from
= 1; from
< argc
; from
++)
1922 if (argv
[from
][0] == '-')
1927 /* If we have found "--", don't consider
1928 any more arguments as options. */
1929 if (argv
[from
][1] == '-' && argv
[from
][2] == 0)
1931 /* Leave the "--", and everything following it, at the end. */
1932 for (; from
< argc
; from
++)
1934 priority
[from
] = -100;
1940 /* Look for a match with a known old-fashioned option. */
1941 for (i
= 0; i
< sizeof (standard_args
) / sizeof (standard_args
[0]); i
++)
1942 if (!strcmp (argv
[from
], standard_args
[i
].name
))
1944 options
[from
] = standard_args
[i
].nargs
;
1945 priority
[from
] = standard_args
[i
].priority
;
1946 if (from
+ standard_args
[i
].nargs
>= argc
)
1947 fatal ("Option `%s' requires an argument\n", argv
[from
]);
1948 from
+= standard_args
[i
].nargs
;
1952 /* Look for a match with a known long option.
1953 MATCH is -1 if no match so far, -2 if two or more matches so far,
1954 >= 0 (the table index of the match) if just one match so far. */
1955 if (argv
[from
][1] == '-')
1958 thislen
= strlen (argv
[from
]);
1959 equals
= index (argv
[from
], '=');
1961 thislen
= equals
- argv
[from
];
1964 i
< sizeof (standard_args
) / sizeof (standard_args
[0]); i
++)
1965 if (standard_args
[i
].longname
1966 && !strncmp (argv
[from
], standard_args
[i
].longname
,
1975 /* If we found exactly one match, use that. */
1978 options
[from
] = standard_args
[match
].nargs
;
1979 priority
[from
] = standard_args
[match
].priority
;
1980 /* If --OPTION=VALUE syntax is used,
1981 this option uses just one argv element. */
1984 if (from
+ options
[from
] >= argc
)
1985 fatal ("Option `%s' requires an argument\n", argv
[from
]);
1986 from
+= options
[from
];
1993 /* Copy the arguments, in order of decreasing priority, to NEW. */
1995 while (incoming_used
< argc
)
1998 int best_priority
= -9999;
2000 /* Find the highest priority remaining option.
2001 If several have equal priority, take the first of them. */
2002 for (from
= 1; from
< argc
; from
++)
2004 if (argv
[from
] != 0 && priority
[from
] > best_priority
)
2006 best_priority
= priority
[from
];
2009 /* Skip option arguments--they are tied to the options. */
2010 if (options
[from
] > 0)
2011 from
+= options
[from
];
2017 /* Copy the highest priority remaining option, with its args, to NEW.
2018 Unless it is a duplicate of the previous one. */
2019 if (! (options
[best
] == 0
2020 && ! strcmp (new[to
- 1], argv
[best
])))
2022 new[to
++] = argv
[best
];
2023 for (i
= 0; i
< options
[best
]; i
++)
2024 new[to
++] = argv
[best
+ i
+ 1];
2027 incoming_used
+= 1 + (options
[best
] > 0 ? options
[best
] : 0);
2029 /* Clear out this option in ARGV. */
2031 for (i
= 0; i
< options
[best
]; i
++)
2032 argv
[best
+ i
+ 1] = 0;
2035 /* If duplicate options were deleted, fill up extra space with null ptrs. */
2039 bcopy (new, argv
, sizeof (char *) * argc
);
2046 DEFUN ("kill-emacs", Fkill_emacs
, Skill_emacs
, 0, 1, "P",
2047 doc
: /* Exit the Emacs job and kill it.
2048 If ARG is an integer, return ARG as the exit program code.
2049 If ARG is a string, stuff it as keyboard input.
2051 The value of `kill-emacs-hook', if not void,
2052 is a list of functions (of no args),
2053 all of which are called before Emacs is actually killed. */)
2057 struct gcpro gcpro1
;
2064 if (!NILP (Vrun_hooks
) && !noninteractive
)
2065 call1 (Vrun_hooks
, intern ("kill-emacs-hook"));
2069 /* Is it really necessary to do this deassign
2070 when we are going to exit anyway? */
2075 shut_down_emacs (0, 0, STRINGP (arg
) ? arg
: Qnil
);
2077 /* If we have an auto-save list file,
2078 kill it because we are exiting Emacs deliberately (not crashing).
2079 Do it after shut_down_emacs, which does an auto-save. */
2080 if (STRINGP (Vauto_save_list_file_name
))
2081 unlink (SDATA (Vauto_save_list_file_name
));
2083 exit (INTEGERP (arg
) ? XINT (arg
) : EXIT_SUCCESS
);
2089 /* Perform an orderly shutdown of Emacs. Autosave any modified
2090 buffers, kill any child processes, clean up the terminal modes (if
2091 we're in the foreground), and other stuff like that. Don't perform
2092 any redisplay; this may be called when Emacs is shutting down in
2093 the background, or after its X connection has died.
2095 If SIG is a signal number, print a message for it.
2097 This is called by fatal signal handlers, X protocol error handlers,
2101 shut_down_emacs (sig
, no_x
, stuff
)
2105 /* Prevent running of hooks from now on. */
2108 /* Don't update display from now on. */
2109 Vinhibit_redisplay
= Qt
;
2111 /* If we are controlling the terminal, reset terminal modes. */
2112 #ifdef EMACS_HAVE_TTY_PGRP
2114 int pgrp
= EMACS_GETPGRP (0);
2117 if (EMACS_GET_TTY_PGRP (0, &tpgrp
) != -1
2120 reset_all_sys_modes ();
2121 if (sig
&& sig
!= SIGTERM
)
2122 fprintf (stderr
, "Fatal error (%d)", sig
);
2127 reset_all_sys_modes ();
2130 stuff_buffered_input (stuff
);
2132 kill_buffer_processes (Qnil
);
2133 Fdo_auto_save (Qt
, Qnil
);
2135 #ifdef CLASH_DETECTION
2136 unlock_all_files ();
2140 kill_vms_processes ();
2143 #if 0 /* This triggers a bug in XCloseDisplay and is not needed. */
2144 #ifdef HAVE_X_WINDOWS
2145 /* It's not safe to call intern here. Maybe we are crashing. */
2146 if (!noninteractive
&& SYMBOLP (Vinitial_window_system
)
2147 && SCHARS (SYMBOL_NAME (Vinitial_window_system
)) == 1
2148 && SREF (SYMBOL_NAME (Vinitial_window_system
), 0) == 'x'
2150 Fx_close_current_connection ();
2151 #endif /* HAVE_X_WINDOWS */
2155 /* There is a tendency for a SIGIO signal to arrive within exit,
2156 and cause a SIGHUP because the input descriptor is already closed. */
2158 signal (SIGIO
, SIG_IGN
);
2165 /* Do this only if terminating normally, we want glyph matrices
2166 etc. in a core dump. */
2167 if (sig
== 0 || sig
== SIGTERM
)
2169 check_glyph_memory ();
2170 check_message_stack ();
2184 DEFUN ("dump-emacs-data", Fdump_emacs_data
, Sdump_emacs_data
, 1, 1, 0,
2185 doc
: /* Dump current state of Emacs into data file FILENAME.
2186 This function exists on systems that use HAVE_SHM. */)
2188 Lisp_Object filename
;
2190 extern char my_edata
[];
2194 CHECK_STRING (filename
);
2195 filename
= Fexpand_file_name (filename
, Qnil
);
2198 Vpurify_flag
= Qnil
;
2201 /* Tell malloc where start of impure now is. */
2202 /* Also arrange for warnings when nearly out of space. */
2203 #ifndef SYSTEM_MALLOC
2204 memory_warnings (my_edata
, malloc_warning
);
2206 map_out_data (SDATA (filename
));
2213 #else /* not HAVE_SHM */
2215 DEFUN ("dump-emacs", Fdump_emacs
, Sdump_emacs
, 2, 2, 0,
2216 doc
: /* Dump current state of Emacs into executable file FILENAME.
2217 Take symbols from SYMFILE (presumably the file you executed to run Emacs).
2218 This is used in the file `loadup.el' when building Emacs.
2220 You must run Emacs in batch mode in order to dump it. */)
2222 Lisp_Object filename
, symfile
;
2224 extern char my_edata
[];
2227 int count
= SPECPDL_INDEX ();
2231 if (! noninteractive
)
2232 error ("Dumping Emacs works only in batch mode");
2235 if (heap_bss_diff
> MAX_HEAP_BSS_DIFF
)
2237 fprintf (stderr
, "**************************************************\n");
2238 fprintf (stderr
, "Warning: Your system has a gap between BSS and the\n");
2239 fprintf (stderr
, "heap (%lu byte). This usually means that exec-shield\n",
2241 fprintf (stderr
, "or something similar is in effect. The dump may\n");
2242 fprintf (stderr
, "fail because of this. See the section about \n");
2243 fprintf (stderr
, "exec-shield in etc/PROBLEMS for more information.\n");
2244 fprintf (stderr
, "**************************************************\n");
2246 #endif /* __linux__ */
2248 /* Bind `command-line-processed' to nil before dumping,
2249 so that the dumped Emacs will process its command line
2250 and set up to work with X windows if appropriate. */
2251 symbol
= intern ("command-line-processed");
2252 specbind (symbol
, Qnil
);
2254 CHECK_STRING (filename
);
2255 filename
= Fexpand_file_name (filename
, Qnil
);
2256 if (!NILP (symfile
))
2258 CHECK_STRING (symfile
);
2259 if (SCHARS (symfile
))
2260 symfile
= Fexpand_file_name (symfile
, Qnil
);
2264 Vpurify_flag
= Qnil
;
2267 set_time_zone_rule (dump_tz
);
2268 #ifndef LOCALTIME_CACHE
2269 /* Force a tz reload, since set_time_zone_rule doesn't. */
2276 mapout_data (SDATA (filename
));
2278 /* Tell malloc where start of impure now is. */
2279 /* Also arrange for warnings when nearly out of space. */
2280 #ifndef SYSTEM_MALLOC
2282 /* On Windows, this was done before dumping, and that once suffices.
2283 Meanwhile, my_edata is not valid on Windows. */
2284 memory_warnings (my_edata
, malloc_warning
);
2285 #endif /* not WINDOWSNT */
2287 #if !defined (SYSTEM_MALLOC) && defined (HAVE_GTK_AND_PTHREAD) && !defined SYNC_INPUT
2288 /* Pthread may call malloc before main, and then we will get an endless
2289 loop, because pthread_self (see alloc.c) calls malloc the first time
2290 it is called on some systems. */
2291 reset_malloc_hooks ();
2293 #ifdef DOUG_LEA_MALLOC
2294 malloc_state_ptr
= malloc_get_state ();
2297 #ifdef USE_MMAP_FOR_BUFFERS
2300 unexec (SDATA (filename
),
2301 !NILP (symfile
) ? SDATA (symfile
) : 0, my_edata
, 0, 0);
2302 #ifdef USE_MMAP_FOR_BUFFERS
2305 #ifdef DOUG_LEA_MALLOC
2306 free (malloc_state_ptr
);
2308 #endif /* not VMS */
2312 return unbind_to (count
, Qnil
);
2315 #endif /* not HAVE_SHM */
2317 #endif /* not CANNOT_DUMP */
2320 /* Recover from setlocale (LC_ALL, ""). */
2324 /* The Emacs Lisp reader needs LC_NUMERIC to be "C",
2325 so that numbers are read and printed properly for Emacs Lisp. */
2326 setlocale (LC_NUMERIC
, "C");
2329 /* Set system locale CATEGORY, with previous locale *PLOCALE, to
2332 synchronize_locale (category
, plocale
, desired_locale
)
2334 Lisp_Object
*plocale
;
2335 Lisp_Object desired_locale
;
2337 if (! EQ (*plocale
, desired_locale
))
2339 *plocale
= desired_locale
;
2340 setlocale (category
, (STRINGP (desired_locale
)
2341 ? (char *) SDATA (desired_locale
)
2346 /* Set system time locale to match Vsystem_time_locale, if possible. */
2348 synchronize_system_time_locale ()
2350 synchronize_locale (LC_TIME
, &Vprevious_system_time_locale
,
2351 Vsystem_time_locale
);
2354 /* Set system messages locale to match Vsystem_messages_locale, if
2357 synchronize_system_messages_locale ()
2360 synchronize_locale (LC_MESSAGES
, &Vprevious_system_messages_locale
,
2361 Vsystem_messages_locale
);
2364 #endif /* HAVE_SETLOCALE */
2371 decode_env_path (evarname
, defalt
)
2372 char *evarname
, *defalt
;
2374 register char *path
, *p
;
2375 Lisp_Object lpath
, element
, tem
;
2377 /* It's okay to use getenv here, because this function is only used
2378 to initialize variables when Emacs starts up, and isn't called
2381 path
= (char *) getenv (evarname
);
2387 /* Ensure values from the environment use the proper directory separator. */
2390 p
= alloca (strlen (path
) + 1);
2394 if ('/' == DIRECTORY_SEP
)
2395 dostounix_filename (path
);
2397 unixtodos_filename (path
);
2403 p
= index (path
, SEPCHAR
);
2404 if (!p
) p
= path
+ strlen (path
);
2405 element
= (p
- path
? make_string (path
, p
- path
)
2406 : build_string ("."));
2408 /* Add /: to the front of the name
2409 if it would otherwise be treated as magic. */
2410 tem
= Ffind_file_name_handler (element
, Qt
);
2412 /* However, if the handler says "I'm safe",
2413 don't bother adding /:. */
2417 prop
= Fget (tem
, intern ("safe-magic"));
2423 element
= concat2 (build_string ("/:"), element
);
2425 lpath
= Fcons (element
, lpath
);
2431 return Fnreverse (lpath
);
2437 Qfile_name_handler_alist
= intern ("file-name-handler-alist");
2438 staticpro (&Qfile_name_handler_alist
);
2442 defsubr (&Sdump_emacs_data
);
2444 defsubr (&Sdump_emacs
);
2448 defsubr (&Skill_emacs
);
2450 defsubr (&Sinvocation_name
);
2451 defsubr (&Sinvocation_directory
);
2453 DEFVAR_LISP ("command-line-args", &Vcommand_line_args
,
2454 doc
: /* Args passed by shell to Emacs, as a list of strings.
2455 Many arguments are deleted from the list as they are processed. */);
2457 DEFVAR_LISP ("system-type", &Vsystem_type
,
2458 doc
: /* Value is symbol indicating type of operating system you are using.
2460 `gnu/linux' compiled for a GNU/Linux system.
2461 `darwin' compiled for Darwin (GNU-Darwin, Mac OS X, ...).
2462 `macos' compiled for Mac OS 9.
2463 `ms-dos' compiled as an MS-DOS application.
2464 `windows-nt' compiled as a native W32 application.
2465 `cygwin' compiled using the Cygwin library.
2466 `vax-vms' or `axp-vms': compiled for a (Open)VMS system.
2467 Anything else indicates some sort of Unix system. */);
2468 Vsystem_type
= intern (SYSTEM_TYPE
);
2470 DEFVAR_LISP ("system-configuration", &Vsystem_configuration
,
2471 doc
: /* Value is string indicating configuration Emacs was built for.
2472 On MS-Windows, the value reflects the OS flavor and version on which
2473 Emacs is running. */);
2474 Vsystem_configuration
= build_string (EMACS_CONFIGURATION
);
2476 DEFVAR_LISP ("system-configuration-options", &Vsystem_configuration_options
,
2477 doc
: /* String containing the configuration options Emacs was built with. */);
2478 Vsystem_configuration_options
= build_string (EMACS_CONFIG_OPTIONS
);
2480 DEFVAR_BOOL ("noninteractive", &noninteractive1
,
2481 doc
: /* Non-nil means Emacs is running without interactive terminal. */);
2483 DEFVAR_LISP ("kill-emacs-hook", &Vkill_emacs_hook
,
2484 doc
: /* Hook to be run when kill-emacs is called.
2485 Since `kill-emacs' may be invoked when the terminal is disconnected (or
2486 in other similar situations), functions placed on this hook should not
2487 expect to be able to interact with the user. To ask for confirmation,
2488 see `kill-emacs-query-functions' instead.
2490 The hook is not run in batch mode, i.e., if `noninteractive' is non-nil. */);
2491 Vkill_emacs_hook
= Qnil
;
2493 empty_string
= build_string ("");
2494 staticpro (&empty_string
);
2496 DEFVAR_INT ("emacs-priority", &emacs_priority
,
2497 doc
: /* Priority for Emacs to run at.
2498 This value is effective only if set before Emacs is dumped,
2499 and only if the Emacs executable is installed with setuid to permit
2500 it to change priority. (Emacs sets its uid back to the real uid.)
2501 Currently, you need to define SET_EMACS_PRIORITY in `config.h'
2502 before you compile Emacs, to enable the code for this feature. */);
2505 DEFVAR_LISP ("path-separator", &Vpath_separator
,
2506 doc
: /* The directory separator in search paths, as a string. */);
2509 Vpath_separator
= make_string (&c
, 1);
2512 DEFVAR_LISP ("invocation-name", &Vinvocation_name
,
2513 doc
: /* The program name that was used to run Emacs.
2514 Any directory names are omitted. */);
2516 DEFVAR_LISP ("invocation-directory", &Vinvocation_directory
,
2517 doc
: /* The directory in which the Emacs executable was found, to run it.
2518 The value is nil if that directory's name is not known. */);
2520 DEFVAR_LISP ("installation-directory", &Vinstallation_directory
,
2521 doc
: /* A directory within which to look for the `lib-src' and `etc' directories.
2522 This is non-nil when we can't find those directories in their standard
2523 installed locations, but we can find them
2524 near where the Emacs executable was found. */);
2525 Vinstallation_directory
= Qnil
;
2527 DEFVAR_LISP ("system-messages-locale", &Vsystem_messages_locale
,
2528 doc
: /* System locale for messages. */);
2529 Vsystem_messages_locale
= Qnil
;
2531 DEFVAR_LISP ("previous-system-messages-locale",
2532 &Vprevious_system_messages_locale
,
2533 doc
: /* Most recently used system locale for messages. */);
2534 Vprevious_system_messages_locale
= Qnil
;
2536 DEFVAR_LISP ("system-time-locale", &Vsystem_time_locale
,
2537 doc
: /* System locale for time. */);
2538 Vsystem_time_locale
= Qnil
;
2540 DEFVAR_LISP ("previous-system-time-locale", &Vprevious_system_time_locale
,
2541 doc
: /* Most recently used system locale for time. */);
2542 Vprevious_system_time_locale
= Qnil
;
2545 /* arch-tag: 7bfd356a-c720-4612-8ab6-aa4222931c2e
2546 (do not change this comment) */