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. */
967 if (argc
> skip_args
+ 1 && strncmp (argv
[skip_args
+1], "-psn_", 5) == 0)
972 /* If -map specified, map the data file in. */
975 if (argmatch (argv
, argc
, "-map", "--map-data", 3, &file
, &skip_args
))
979 #ifdef LINK_CRTL_SHARE
980 #ifdef SHARABLE_LIB_BUG
981 /* Bletcherous shared libraries! */
983 stdin
= fdopen (0, "r");
985 stdout
= fdopen (1, "w");
987 stderr
= fdopen (2, "w");
990 #endif /* SHARABLE_LIB_BUG */
991 #endif /* LINK_CRTL_SHARE */
994 #if defined (HAVE_SETRLIMIT) && defined (RLIMIT_STACK)
995 /* Extend the stack space available.
996 Don't do that if dumping, since some systems (e.g. DJGPP)
997 might define a smaller stack limit at that time. */
1000 && (!noninteractive
|| initialized
)
1002 && !getrlimit (RLIMIT_STACK
, &rlim
))
1005 extern size_t re_max_failures
;
1006 /* Approximate the amount regex.c needs per unit of re_max_failures. */
1007 int ratio
= 20 * sizeof (char *);
1008 /* Then add 33% to cover the size of the smaller stacks that regex.c
1009 successively allocates and discards, on its way to the maximum. */
1011 /* Add in some extra to cover
1012 what we're likely to use for other reasons. */
1013 newlim
= re_max_failures
* ratio
+ 200000;
1015 /* NetBSD (at least NetBSD 1.2G and former) has a bug in its
1016 stack allocation routine for new process that the allocation
1017 fails if stack limit is not on page boundary. So, round up the
1018 new limit to page boundary. */
1019 newlim
= (newlim
+ getpagesize () - 1) / getpagesize () * getpagesize();
1021 if (newlim
> rlim
.rlim_max
)
1023 newlim
= rlim
.rlim_max
;
1024 /* Don't let regex.c overflow the stack we have. */
1025 re_max_failures
= (newlim
- 200000) / ratio
;
1027 if (rlim
.rlim_cur
< newlim
)
1028 rlim
.rlim_cur
= newlim
;
1030 setrlimit (RLIMIT_STACK
, &rlim
);
1032 #endif /* HAVE_SETRLIMIT and RLIMIT_STACK */
1034 /* Record (approximately) where the stack begins. */
1035 stack_bottom
= &stack_bottom_variable
;
1037 #ifdef USG_SHARED_LIBRARIES
1039 brk ((void *)bss_end
);
1044 #ifndef SYSTEM_MALLOC
1045 /* Arrange to get warning messages as memory fills up. */
1046 memory_warnings (0, malloc_warning
);
1048 /* Call malloc at least once, to run the initial __malloc_hook.
1049 Also call realloc and free for consistency. */
1050 free (realloc (malloc (4), 4));
1053 /* Arrange to disable interrupt input inside malloc etc. */
1054 uninterrupt_malloc ();
1055 # endif /* not SYNC_INPUT */
1056 #endif /* not SYSTEM_MALLOC */
1058 #ifdef HAVE_GTK_AND_PTHREAD
1059 main_thread
= pthread_self ();
1060 #endif /* HAVE_GTK_AND_PTHREAD */
1062 #if defined (MSDOS) || defined (WINDOWSNT)
1063 /* We do all file input/output as binary files. When we need to translate
1064 newlines, we do that manually. */
1066 #endif /* MSDOS || WINDOWSNT */
1070 if (!isatty (fileno (stdin
)))
1071 setmode (fileno (stdin
), O_BINARY
);
1072 if (!isatty (fileno (stdout
)))
1075 setmode (fileno (stdout
), O_BINARY
);
1077 #else /* not __DJGPP__ >= 2 */
1078 (stdin
)->_flag
&= ~_IOTEXT
;
1079 (stdout
)->_flag
&= ~_IOTEXT
;
1080 (stderr
)->_flag
&= ~_IOTEXT
;
1081 #endif /* not __DJGPP__ >= 2 */
1084 #ifdef SET_EMACS_PRIORITY
1086 nice (emacs_priority
);
1088 #endif /* SET_EMACS_PRIORITY */
1090 /* Skip initial setlocale if LC_ALL is "C", as it's not needed in that case.
1091 The build procedure uses this while dumping, to ensure that the
1092 dumped Emacs does not have its system locale tables initialized,
1093 as that might cause screwups when the dumped Emacs starts up. */
1095 char *lc_all
= getenv ("LC_ALL");
1096 do_initial_setlocale
= ! lc_all
|| strcmp (lc_all
, "C");
1099 /* Set locale now, so that initial error messages are localized properly.
1100 fixup_locale must wait until later, since it builds strings. */
1101 if (do_initial_setlocale
)
1102 setlocale (LC_ALL
, "");
1104 #ifdef EXTRA_INITIALIZE
1108 inhibit_window_system
= 0;
1110 /* Handle the -t switch, which specifies filename to use as terminal. */
1114 if (argmatch (argv
, argc
, "-t", "--terminal", 4, &term
, &skip_args
))
1119 result
= emacs_open (term
, O_RDWR
, 0);
1122 char *errstring
= strerror (errno
);
1123 fprintf (stderr
, "%s: %s: %s\n", argv
[0], term
, errstring
);
1129 fprintf (stderr
, "%s: %s: not a tty\n", argv
[0], term
);
1132 fprintf (stderr
, "Using %s\n", term
);
1133 #ifdef HAVE_WINDOW_SYSTEM
1134 inhibit_window_system
= 1; /* -t => -nw */
1141 /* Command line option --no-windows is deprecated and thus not mentioned
1142 in the manual and usage informations. */
1143 if (argmatch (argv
, argc
, "-nw", "--no-window-system", 6, NULL
, &skip_args
)
1144 || argmatch (argv
, argc
, "-nw", "--no-windows", 6, NULL
, &skip_args
))
1145 inhibit_window_system
= 1;
1147 /* Handle the -batch switch, which means don't do interactive display. */
1149 if (argmatch (argv
, argc
, "-batch", "--batch", 5, NULL
, &skip_args
))
1152 Vundo_outer_limit
= Qnil
;
1154 if (argmatch (argv
, argc
, "-script", "--script", 3, &junk
, &skip_args
))
1156 noninteractive
= 1; /* Set batch mode. */
1157 /* Convert --script to --scriptload, un-skip it, and sort again
1158 so that it will be handled in proper sequence. */
1159 argv
[skip_args
- 1] = "-scriptload";
1161 sort_args (argc
, argv
);
1164 /* Handle the --help option, which gives a usage message. */
1165 if (argmatch (argv
, argc
, "-help", "--help", 3, NULL
, &skip_args
))
1167 printf (USAGE1
, argv
[0], USAGE2
);
1169 printf (USAGE4
, bug_reporting_address ());
1173 if (! noninteractive
)
1178 inherited_pgroup
= EMACS_GETPGRP (0);
1179 setpgrp (0, getpid ());
1182 #if defined (USG5) && defined (INTERRUPT_INPUT)
1190 /* Don't catch SIGHUP if dumping. */
1197 sigblock (sigmask (SIGHUP
));
1198 /* In --batch mode, don't catch SIGHUP if already ignored.
1199 That makes nohup work. */
1200 if (! noninteractive
1201 || signal (SIGHUP
, SIG_IGN
) != SIG_IGN
)
1202 signal (SIGHUP
, fatal_error_signal
);
1203 sigunblock (sigmask (SIGHUP
));
1208 ! noninteractive
|| initialized
1214 /* Don't catch these signals in batch mode if dumping.
1215 On some machines, this sets static data that would make
1216 signal fail to work right when the dumped Emacs is run. */
1217 signal (SIGQUIT
, fatal_error_signal
);
1218 signal (SIGILL
, fatal_error_signal
);
1219 signal (SIGTRAP
, fatal_error_signal
);
1221 signal (SIGUSR1
, handle_USR1_signal
);
1223 signal (SIGUSR2
, handle_USR2_signal
);
1227 signal (SIGABRT
, fatal_error_signal
);
1230 signal (SIGHWE
, fatal_error_signal
);
1233 signal (SIGPRE
, fatal_error_signal
);
1236 signal (SIGORE
, fatal_error_signal
);
1239 signal (SIGUME
, fatal_error_signal
);
1242 signal (SIGDLK
, fatal_error_signal
);
1245 signal (SIGCPULIM
, fatal_error_signal
);
1248 /* This is missing on some systems - OS/2, for example. */
1249 signal (SIGIOT
, fatal_error_signal
);
1252 signal (SIGEMT
, fatal_error_signal
);
1254 signal (SIGFPE
, fatal_error_signal
);
1256 signal (SIGBUS
, fatal_error_signal
);
1258 signal (SIGSEGV
, fatal_error_signal
);
1260 signal (SIGSYS
, fatal_error_signal
);
1262 signal (SIGTERM
, fatal_error_signal
);
1264 signal (SIGXCPU
, fatal_error_signal
);
1267 signal (SIGXFSZ
, fatal_error_signal
);
1268 #endif /* SIGXFSZ */
1271 /* This just means available memory is getting low. */
1272 signal (SIGDANGER
, memory_warning_signal
);
1276 /* 20 is SIGCHLD, 21 is SIGTTIN, 22 is SIGTTOU. */
1277 signal (SIGXCPU
, fatal_error_signal
);
1279 signal (SIGIOINT
, fatal_error_signal
);
1281 signal (SIGGRANT
, fatal_error_signal
);
1282 signal (SIGRETRACT
, fatal_error_signal
);
1283 signal (SIGSOUND
, fatal_error_signal
);
1284 signal (SIGMSG
, fatal_error_signal
);
1288 noninteractive1
= noninteractive
;
1290 /* Perform basic initializations (not merely interning symbols). */
1297 init_charset_once ();
1298 init_coding_once ();
1299 init_syntax_once (); /* Create standard syntax table. */
1300 init_category_once (); /* Create standard category table. */
1301 /* Must be done before init_buffer. */
1302 init_casetab_once ();
1303 init_buffer_once (); /* Create buffer table and some buffers. */
1304 init_minibuf_once (); /* Create list of minibuffers. */
1305 /* Must precede init_window_once. */
1307 /* Call syms_of_xfaces before init_window_once because that
1308 function creates Vterminal_frame. Termcap frames now use
1309 faces, and the face implementation uses some symbols as
1312 /* XXX syms_of_keyboard uses some symbols in keymap.c. It would
1313 be better to arrange things not to have this dependency. */
1315 /* Call syms_of_keyboard before init_window_once because
1316 keyboard sets up symbols that include some face names that
1317 the X support will want to use. This can happen when
1318 CANNOT_DUMP is defined. */
1319 syms_of_keyboard ();
1322 /* init_window_once calls make_terminal_frame which on Mac OS
1323 creates a full-fledge output_mac type frame. This does not
1324 work correctly before syms_of_textprop, syms_of_macfns,
1325 syms_of_ccl, syms_of_fontset, syms_of_xterm, syms_of_search,
1326 syms_of_frame, mac_term_init, and init_keyboard have already
1328 syms_of_textprop ();
1334 syms_of_macselect ();
1340 mac_term_init (build_string ("Mac"), NULL
, NULL
);
1344 init_window_once (); /* Init the window system. */
1345 init_fileio_once (); /* Must precede any path manipulation. */
1346 #ifdef HAVE_WINDOW_SYSTEM
1347 init_fringe_once (); /* Swap bitmaps if necessary. */
1348 #endif /* HAVE_WINDOW_SYSTEM */
1353 if (do_initial_setlocale
)
1356 Vsystem_messages_locale
= Vprevious_system_messages_locale
;
1357 Vsystem_time_locale
= Vprevious_system_time_locale
;
1362 #ifdef CLASH_DETECTION
1368 running_asynch_code
= 0;
1370 /* Handle --unibyte and the EMACS_UNIBYTE envvar,
1371 but not while dumping. */
1374 int inhibit_unibyte
= 0;
1376 /* --multibyte overrides EMACS_UNIBYTE. */
1377 if (argmatch (argv
, argc
, "-no-unibyte", "--no-unibyte", 4, NULL
, &skip_args
)
1378 || argmatch (argv
, argc
, "-multibyte", "--multibyte", 4, NULL
, &skip_args
)
1379 /* Ignore EMACS_UNIBYTE before dumping. */
1380 || (!initialized
&& noninteractive
))
1381 inhibit_unibyte
= 1;
1383 /* --unibyte requests that we set up to do everything with single-byte
1384 buffers and strings. We need to handle this before calling
1385 init_lread, init_editfns and other places that generate Lisp strings
1386 from text in the environment. */
1387 /* Actually this shouldn't be needed as of 20.4 in a generally
1388 unibyte environment. As handa says, environment values
1389 aren't now decoded; also existing buffers are now made
1390 unibyte during startup if .emacs sets unibyte. Tested with
1391 8-bit data in environment variables and /etc/passwd, setting
1392 unibyte and Latin-1 in .emacs. -- Dave Love */
1393 if (argmatch (argv
, argc
, "-unibyte", "--unibyte", 4, NULL
, &skip_args
)
1394 || argmatch (argv
, argc
, "-no-multibyte", "--no-multibyte", 4, NULL
, &skip_args
)
1395 || (getenv ("EMACS_UNIBYTE") && !inhibit_unibyte
))
1397 Lisp_Object old_log_max
;
1398 Lisp_Object symbol
, tail
;
1400 symbol
= intern ("default-enable-multibyte-characters");
1401 Fset (symbol
, Qnil
);
1405 /* Erase pre-dump messages in *Messages* now so no abort. */
1406 old_log_max
= Vmessage_log_max
;
1407 XSETFASTINT (Vmessage_log_max
, 0);
1408 message_dolog ("", 0, 1, 0);
1409 Vmessage_log_max
= old_log_max
;
1412 for (tail
= Vbuffer_alist
; CONSP (tail
);
1417 buffer
= Fcdr (XCAR (tail
));
1418 /* Verify that all buffers are empty now, as they
1420 if (BUF_Z (XBUFFER (buffer
)) > BUF_BEG (XBUFFER (buffer
)))
1422 /* It is safe to do this crudely in an empty buffer. */
1423 XBUFFER (buffer
)->enable_multibyte_characters
= Qnil
;
1429 = argmatch (argv
, argc
, "-nl", "--no-loadup", 6, NULL
, &skip_args
);
1432 #ifdef HAVE_X_WINDOWS
1433 /* Stupid kludge to catch command-line display spec. We can't
1434 handle this argument entirely in window system dependent code
1435 because we don't even know which window system dependent code
1436 to run until we've recognized this argument. */
1438 char *displayname
= 0;
1439 int count_before
= skip_args
;
1441 /* Skip any number of -d options, but only use the last one. */
1444 int count_before_this
= skip_args
;
1446 if (argmatch (argv
, argc
, "-d", "--display", 3, &displayname
, &skip_args
))
1448 else if (argmatch (argv
, argc
, "-display", 0, 3, &displayname
, &skip_args
))
1453 count_before
= count_before_this
;
1456 /* If we have the form --display=NAME,
1457 convert it into -d name.
1458 This requires inserting a new element into argv. */
1459 if (displayname
!= 0 && skip_args
- count_before
== 1)
1461 char **new = (char **) xmalloc (sizeof (char *) * (argc
+ 2));
1464 for (j
= 0; j
< count_before
+ 1; j
++)
1466 new[count_before
+ 1] = "-d";
1467 new[count_before
+ 2] = displayname
;
1468 for (j
= count_before
+ 2; j
<argc
; j
++)
1469 new[j
+ 1] = argv
[j
];
1473 /* Change --display to -d, when its arg is separate. */
1474 else if (displayname
!= 0 && skip_args
> count_before
1475 && argv
[count_before
+ 1][1] == '-')
1476 argv
[count_before
+ 1] = "-d";
1478 /* Don't actually discard this arg. */
1479 skip_args
= count_before
;
1483 /* argmatch must not be used after here,
1484 except when bulding temacs
1485 because the -d argument has not been skipped in skip_args. */
1488 /* Call early 'cause init_environment needs it. */
1490 /* Set defaults for several environment variables. */
1492 init_environment (argc
, argv
, skip_args
);
1499 /* Initialize environment from registry settings. */
1500 init_environment (argv
);
1501 init_ntproc (); /* must precede init_editfns. */
1504 #if defined (MAC_OSX) && defined (HAVE_CARBON)
1506 init_mac_osx_environment ();
1509 /* egetenv is a pretty low-level facility, which may get called in
1510 many circumstances; it seems flimsy to put off initializing it
1511 until calling init_callproc. */
1512 set_process_environment ();
1513 /* AIX crashes are reported in system versions 3.2.3 and 3.2.4
1514 if this is not done. Do it after set_process_environment so that we
1515 don't pollute Vprocess_environment. */
1516 /* Setting LANG here will defeat the startup locale processing... */
1521 init_buffer (); /* Init default directory of main buffer. */
1523 init_callproc_1 (); /* Must precede init_cmdargs and init_sys_modes. */
1524 init_cmdargs (argc
, argv
, skip_args
); /* Must precede init_lread. */
1528 /* Erase any pre-dump messages in the message log, to avoid confusion. */
1529 Lisp_Object old_log_max
;
1530 old_log_max
= Vmessage_log_max
;
1531 XSETFASTINT (Vmessage_log_max
, 0);
1532 message_dolog ("", 0, 1, 0);
1533 Vmessage_log_max
= old_log_max
;
1536 init_callproc (); /* Must follow init_cmdargs but not init_sys_modes. */
1539 /* Intern the names of all standard functions and variables;
1540 define standard keys. */
1544 /* The basic levels of Lisp must come first. */
1545 /* And data must come first of all
1546 for the sake of symbols like error-message. */
1548 /* Called before init_window_once for Mac OS Classic. */
1556 syms_of_floatfns ();
1560 syms_of_bytecode ();
1562 syms_of_casefiddle ();
1564 syms_of_callproc ();
1565 syms_of_category ();
1567 /* Called before init_window_once for Mac OS Classic. */
1572 #ifndef NO_DIR_LIBRARY
1574 #endif /* not NO_DIR_LIBRARY */
1580 syms_of_coding (); /* This should be after syms_of_fileio. */
1581 #ifdef CLASH_DETECTION
1582 syms_of_filelock ();
1583 #endif /* CLASH_DETECTION */
1586 /* syms_of_keymap (); */
1592 /* Called before init_window_once for Mac OS Classic. */
1603 /* Called before init_window_once for Mac OS Classic. */
1604 syms_of_textprop ();
1606 syms_of_composite ();
1612 #endif /* WINDOWSNT */
1615 #ifdef HAVE_WINDOW_SYSTEM
1618 #endif /* HAVE_WINDOW_SYSTEM */
1619 #ifdef HAVE_X_WINDOWS
1629 #endif /* HAVE_X_WINDOWS */
1633 /* Called before init_window_once for Mac OS Classic. */
1641 syms_of_w32select ();
1644 #endif /* HAVE_NTGUI */
1646 #if defined (MAC_OSX) && defined (HAVE_CARBON)
1650 syms_of_macselect ();
1652 #endif /* MAC_OSX && HAVE_CARBON */
1662 keys_of_casefiddle ();
1665 keys_of_keyboard ();
1672 /* Initialization that must be done even if the global variable
1673 initialized is non zero. */
1675 globals_of_w32fns ();
1676 globals_of_w32menu ();
1677 globals_of_w32select ();
1678 #endif /* HAVE_NTGUI */
1681 init_process (); /* init_display uses add_keyboard_wait_descriptor. */
1683 /* Called before init_window_once for Mac OS Classic. */
1684 init_keyboard (); /* This too must precede init_sys_modes. */
1687 init_vmsproc (); /* And this too. */
1689 if (!noninteractive
)
1692 init_vms_input ();/* init_display calls get_tty_size, that needs this. */
1694 init_display (); /* Determine terminal type. Calls init_sys_modes. */
1698 #ifdef HAVE_WINDOW_SYSTEM
1701 #endif /* HAVE_WINDOW_SYSTEM */
1716 /* Handle -l loadup, args passed by Makefile. */
1717 if (argmatch (argv
, argc
, "-l", "--load", 3, &file
, &skip_args
))
1718 Vtop_level
= Fcons (intern ("load"),
1719 Fcons (build_string (file
), Qnil
));
1720 /* Unless next switch is -nl, load "loadup.el" first thing. */
1722 Vtop_level
= Fcons (intern ("load"),
1723 Fcons (build_string ("loadup.el"), Qnil
));
1730 /* If the execution TZ happens to be the same as the dump TZ,
1731 change it to some other value and then change it back,
1732 to force the underlying implementation to reload the TZ info.
1733 This is needed on implementations that load TZ info from files,
1734 since the TZ file contents may differ between dump and execution. */
1735 char *tz
= getenv ("TZ");
1736 if (tz
&& !strcmp (tz
, dump_tz
))
1746 /* Set up for profiling. This is known to work on FreeBSD and
1747 GNU/Linux. It might work on some other systems too. Give it a
1748 try and tell us if it works on your system. To compile for
1749 profiling use something like `make CFLAGS="-pg -g -O -DPROFILING=1'. */
1750 #if defined (__FreeBSD__) || defined (__linux)
1754 extern void _mcleanup ();
1756 extern void safe_bcopy ();
1757 extern void dump_opcode_frequencies ();
1760 /* This uses safe_bcopy because that function comes first in the
1761 Emacs executable. It might be better to use something that
1762 gives the start of the text segment, but start_of_text is not
1763 defined on all systems now. */
1764 monstartup (safe_bcopy
, &etext
);
1773 #ifdef LOCALTIME_CACHE
1774 /* Some versions of localtime have a bug. They cache the value of the time
1775 zone rather than looking it up every time. Since localtime() is
1776 called to bolt the undumping time into the undumped emacs, this
1777 results in localtime ignoring the TZ environment variable.
1778 This flushes the new TZ value into localtime. */
1780 #endif /* defined (LOCALTIME_CACHE) */
1782 /* Enter editor command loop. This never returns. */
1788 /* Sort the args so we can find the most important ones
1789 at the beginning of argv. */
1791 /* First, here's a table of all the standard options. */
1793 struct standard_args
1801 struct standard_args standard_args
[] =
1803 { "-version", "--version", 150, 0 },
1805 { "-nl", "--no-shared-memory", 140, 0 },
1808 { "-map", "--map-data", 130, 0 },
1810 { "-t", "--terminal", 120, 1 },
1811 { "-nw", "--no-window-system", 110, 0 },
1812 { "-nw", "--no-windows", 110, 0 },
1813 { "-batch", "--batch", 100, 0 },
1814 { "-script", "--script", 100, 1 },
1815 { "-help", "--help", 90, 0 },
1816 { "-no-unibyte", "--no-unibyte", 83, 0 },
1817 { "-multibyte", "--multibyte", 82, 0 },
1818 { "-unibyte", "--unibyte", 81, 0 },
1819 { "-no-multibyte", "--no-multibyte", 80, 0 },
1820 { "-nl", "--no-loadup", 70, 0 },
1821 /* -d must come last before the options handled in startup.el. */
1822 { "-d", "--display", 60, 1 },
1823 { "-display", 0, 60, 1 },
1824 /* Now for the options handled in startup.el. */
1825 { "-Q", "--quick", 55, 0 },
1826 { "-quick", 0, 55, 0 },
1827 { "-q", "--no-init-file", 50, 0 },
1828 { "-no-init-file", 0, 50, 0 },
1829 { "-no-site-file", "--no-site-file", 40, 0 },
1830 { "-no-splash", "--no-splash", 40, 0 },
1831 { "-u", "--user", 30, 1 },
1832 { "-user", 0, 30, 1 },
1833 { "-debug-init", "--debug-init", 20, 0 },
1834 { "-nbi", "--no-bitmap-icon", 15, 0 },
1835 { "-iconic", "--iconic", 15, 0 },
1836 { "-D", "--basic-display", 12, 0},
1837 { "-basic-display", 0, 12, 0},
1838 { "-bg", "--background-color", 10, 1 },
1839 { "-background", 0, 10, 1 },
1840 { "-fg", "--foreground-color", 10, 1 },
1841 { "-foreground", 0, 10, 1 },
1842 { "-bd", "--border-color", 10, 1 },
1843 { "-bw", "--border-width", 10, 1 },
1844 { "-ib", "--internal-border", 10, 1 },
1845 { "-ms", "--mouse-color", 10, 1 },
1846 { "-cr", "--cursor-color", 10, 1 },
1847 { "-nbc", "--no-blinking-cursor", 10, 0 },
1848 { "-fn", "--font", 10, 1 },
1849 { "-font", 0, 10, 1 },
1850 { "-fs", "--fullscreen", 10, 0 },
1851 { "-fw", "--fullwidth", 10, 0 },
1852 { "-fh", "--fullheight", 10, 0 },
1853 { "-g", "--geometry", 10, 1 },
1854 { "-geometry", 0, 10, 1 },
1855 { "-T", "--title", 10, 1 },
1856 { "-title", 0, 10, 1 },
1857 { "-name", "--name", 10, 1 },
1858 { "-xrm", "--xrm", 10, 1 },
1859 { "-r", "--reverse-video", 5, 0 },
1861 { "-reverse", 0, 5, 0 },
1862 { "-hb", "--horizontal-scroll-bars", 5, 0 },
1863 { "-vb", "--vertical-scroll-bars", 5, 0 },
1864 { "-color", "--color", 5, 0},
1865 /* These have the same priority as ordinary file name args,
1866 so they are not reordered with respect to those. */
1867 { "-L", "--directory", 0, 1 },
1868 { "-directory", 0, 0, 1 },
1869 { "-l", "--load", 0, 1 },
1870 { "-load", 0, 0, 1 },
1871 { "-scriptload", "--scriptload", 0, 1 },
1872 { "-f", "--funcall", 0, 1 },
1873 { "-funcall", 0, 0, 1 },
1874 { "-eval", "--eval", 0, 1 },
1875 { "-execute", "--execute", 0, 1 },
1876 { "-find-file", "--find-file", 0, 1 },
1877 { "-visit", "--visit", 0, 1 },
1878 { "-file", "--file", 0, 1 },
1879 { "-insert", "--insert", 0, 1 },
1880 /* This should be processed after ordinary file name args and the like. */
1881 { "-kill", "--kill", -10, 0 },
1884 /* Reorder the elements of ARGV (assumed to have ARGC elements)
1885 so that the highest priority ones come first.
1886 Do not change the order of elements of equal priority.
1887 If an option takes an argument, keep it and its argument together.
1889 If an option that takes no argument appears more
1890 than once, eliminate all but one copy of it. */
1893 sort_args (argc
, argv
)
1897 char **new = (char **) xmalloc (sizeof (char *) * argc
);
1898 /* For each element of argv,
1899 the corresponding element of options is:
1900 0 for an option that takes no arguments,
1901 1 for an option that takes one argument, etc.
1902 -1 for an ordinary non-option argument. */
1903 int *options
= (int *) xmalloc (sizeof (int) * argc
);
1904 int *priority
= (int *) xmalloc (sizeof (int) * argc
);
1906 int incoming_used
= 1;
1910 /* Categorize all the options,
1911 and figure out which argv elts are option arguments. */
1912 for (from
= 1; from
< argc
; from
++)
1916 if (argv
[from
][0] == '-')
1921 /* If we have found "--", don't consider
1922 any more arguments as options. */
1923 if (argv
[from
][1] == '-' && argv
[from
][2] == 0)
1925 /* Leave the "--", and everything following it, at the end. */
1926 for (; from
< argc
; from
++)
1928 priority
[from
] = -100;
1934 /* Look for a match with a known old-fashioned option. */
1935 for (i
= 0; i
< sizeof (standard_args
) / sizeof (standard_args
[0]); i
++)
1936 if (!strcmp (argv
[from
], standard_args
[i
].name
))
1938 options
[from
] = standard_args
[i
].nargs
;
1939 priority
[from
] = standard_args
[i
].priority
;
1940 if (from
+ standard_args
[i
].nargs
>= argc
)
1941 fatal ("Option `%s' requires an argument\n", argv
[from
]);
1942 from
+= standard_args
[i
].nargs
;
1946 /* Look for a match with a known long option.
1947 MATCH is -1 if no match so far, -2 if two or more matches so far,
1948 >= 0 (the table index of the match) if just one match so far. */
1949 if (argv
[from
][1] == '-')
1952 thislen
= strlen (argv
[from
]);
1953 equals
= index (argv
[from
], '=');
1955 thislen
= equals
- argv
[from
];
1958 i
< sizeof (standard_args
) / sizeof (standard_args
[0]); i
++)
1959 if (standard_args
[i
].longname
1960 && !strncmp (argv
[from
], standard_args
[i
].longname
,
1969 /* If we found exactly one match, use that. */
1972 options
[from
] = standard_args
[match
].nargs
;
1973 priority
[from
] = standard_args
[match
].priority
;
1974 /* If --OPTION=VALUE syntax is used,
1975 this option uses just one argv element. */
1978 if (from
+ options
[from
] >= argc
)
1979 fatal ("Option `%s' requires an argument\n", argv
[from
]);
1980 from
+= options
[from
];
1987 /* Copy the arguments, in order of decreasing priority, to NEW. */
1989 while (incoming_used
< argc
)
1992 int best_priority
= -9999;
1994 /* Find the highest priority remaining option.
1995 If several have equal priority, take the first of them. */
1996 for (from
= 1; from
< argc
; from
++)
1998 if (argv
[from
] != 0 && priority
[from
] > best_priority
)
2000 best_priority
= priority
[from
];
2003 /* Skip option arguments--they are tied to the options. */
2004 if (options
[from
] > 0)
2005 from
+= options
[from
];
2011 /* Copy the highest priority remaining option, with its args, to NEW.
2012 Unless it is a duplicate of the previous one. */
2013 if (! (options
[best
] == 0
2014 && ! strcmp (new[to
- 1], argv
[best
])))
2016 new[to
++] = argv
[best
];
2017 for (i
= 0; i
< options
[best
]; i
++)
2018 new[to
++] = argv
[best
+ i
+ 1];
2021 incoming_used
+= 1 + (options
[best
] > 0 ? options
[best
] : 0);
2023 /* Clear out this option in ARGV. */
2025 for (i
= 0; i
< options
[best
]; i
++)
2026 argv
[best
+ i
+ 1] = 0;
2029 /* If duplicate options were deleted, fill up extra space with null ptrs. */
2033 bcopy (new, argv
, sizeof (char *) * argc
);
2040 DEFUN ("kill-emacs", Fkill_emacs
, Skill_emacs
, 0, 1, "P",
2041 doc
: /* Exit the Emacs job and kill it.
2042 If ARG is an integer, return ARG as the exit program code.
2043 If ARG is a string, stuff it as keyboard input.
2045 The value of `kill-emacs-hook', if not void,
2046 is a list of functions (of no args),
2047 all of which are called before Emacs is actually killed. */)
2051 struct gcpro gcpro1
;
2058 if (!NILP (Vrun_hooks
) && !noninteractive
)
2059 call1 (Vrun_hooks
, intern ("kill-emacs-hook"));
2063 /* Is it really necessary to do this deassign
2064 when we are going to exit anyway? */
2069 shut_down_emacs (0, 0, STRINGP (arg
) ? arg
: Qnil
);
2071 /* If we have an auto-save list file,
2072 kill it because we are exiting Emacs deliberately (not crashing).
2073 Do it after shut_down_emacs, which does an auto-save. */
2074 if (STRINGP (Vauto_save_list_file_name
))
2075 unlink (SDATA (Vauto_save_list_file_name
));
2077 exit (INTEGERP (arg
) ? XINT (arg
) : EXIT_SUCCESS
);
2083 /* Perform an orderly shutdown of Emacs. Autosave any modified
2084 buffers, kill any child processes, clean up the terminal modes (if
2085 we're in the foreground), and other stuff like that. Don't perform
2086 any redisplay; this may be called when Emacs is shutting down in
2087 the background, or after its X connection has died.
2089 If SIG is a signal number, print a message for it.
2091 This is called by fatal signal handlers, X protocol error handlers,
2095 shut_down_emacs (sig
, no_x
, stuff
)
2099 /* Prevent running of hooks from now on. */
2102 /* Don't update display from now on. */
2103 Vinhibit_redisplay
= Qt
;
2105 /* If we are controlling the terminal, reset terminal modes. */
2106 #ifdef EMACS_HAVE_TTY_PGRP
2108 int pgrp
= EMACS_GETPGRP (0);
2111 if (EMACS_GET_TTY_PGRP (0, &tpgrp
) != -1
2114 reset_all_sys_modes ();
2115 if (sig
&& sig
!= SIGTERM
)
2116 fprintf (stderr
, "Fatal error (%d)", sig
);
2121 reset_all_sys_modes ();
2124 stuff_buffered_input (stuff
);
2126 kill_buffer_processes (Qnil
);
2127 Fdo_auto_save (Qt
, Qnil
);
2129 #ifdef CLASH_DETECTION
2130 unlock_all_files ();
2134 kill_vms_processes ();
2137 #if 0 /* This triggers a bug in XCloseDisplay and is not needed. */
2138 #ifdef HAVE_X_WINDOWS
2139 /* It's not safe to call intern here. Maybe we are crashing. */
2140 if (!noninteractive
&& SYMBOLP (Vinitial_window_system
)
2141 && SCHARS (SYMBOL_NAME (Vinitial_window_system
)) == 1
2142 && SREF (SYMBOL_NAME (Vinitial_window_system
), 0) == 'x'
2144 Fx_close_current_connection ();
2145 #endif /* HAVE_X_WINDOWS */
2149 /* There is a tendency for a SIGIO signal to arrive within exit,
2150 and cause a SIGHUP because the input descriptor is already closed. */
2152 signal (SIGIO
, SIG_IGN
);
2159 /* Do this only if terminating normally, we want glyph matrices
2160 etc. in a core dump. */
2161 if (sig
== 0 || sig
== SIGTERM
)
2163 check_glyph_memory ();
2164 check_message_stack ();
2178 DEFUN ("dump-emacs-data", Fdump_emacs_data
, Sdump_emacs_data
, 1, 1, 0,
2179 doc
: /* Dump current state of Emacs into data file FILENAME.
2180 This function exists on systems that use HAVE_SHM. */)
2182 Lisp_Object filename
;
2184 extern char my_edata
[];
2188 CHECK_STRING (filename
);
2189 filename
= Fexpand_file_name (filename
, Qnil
);
2192 Vpurify_flag
= Qnil
;
2195 /* Tell malloc where start of impure now is. */
2196 /* Also arrange for warnings when nearly out of space. */
2197 #ifndef SYSTEM_MALLOC
2198 memory_warnings (my_edata
, malloc_warning
);
2200 map_out_data (SDATA (filename
));
2207 #else /* not HAVE_SHM */
2209 DEFUN ("dump-emacs", Fdump_emacs
, Sdump_emacs
, 2, 2, 0,
2210 doc
: /* Dump current state of Emacs into executable file FILENAME.
2211 Take symbols from SYMFILE (presumably the file you executed to run Emacs).
2212 This is used in the file `loadup.el' when building Emacs.
2214 You must run Emacs in batch mode in order to dump it. */)
2216 Lisp_Object filename
, symfile
;
2218 extern char my_edata
[];
2221 int count
= SPECPDL_INDEX ();
2225 if (! noninteractive
)
2226 error ("Dumping Emacs works only in batch mode");
2229 if (heap_bss_diff
> MAX_HEAP_BSS_DIFF
)
2231 fprintf (stderr
, "**************************************************\n");
2232 fprintf (stderr
, "Warning: Your system has a gap between BSS and the\n");
2233 fprintf (stderr
, "heap (%lu byte). This usually means that exec-shield\n",
2235 fprintf (stderr
, "or something similar is in effect. The dump may\n");
2236 fprintf (stderr
, "fail because of this. See the section about \n");
2237 fprintf (stderr
, "exec-shield in etc/PROBLEMS for more information.\n");
2238 fprintf (stderr
, "**************************************************\n");
2240 #endif /* __linux__ */
2242 /* Bind `command-line-processed' to nil before dumping,
2243 so that the dumped Emacs will process its command line
2244 and set up to work with X windows if appropriate. */
2245 symbol
= intern ("command-line-processed");
2246 specbind (symbol
, Qnil
);
2248 CHECK_STRING (filename
);
2249 filename
= Fexpand_file_name (filename
, Qnil
);
2250 if (!NILP (symfile
))
2252 CHECK_STRING (symfile
);
2253 if (SCHARS (symfile
))
2254 symfile
= Fexpand_file_name (symfile
, Qnil
);
2258 Vpurify_flag
= Qnil
;
2261 set_time_zone_rule (dump_tz
);
2262 #ifndef LOCALTIME_CACHE
2263 /* Force a tz reload, since set_time_zone_rule doesn't. */
2270 mapout_data (SDATA (filename
));
2272 /* Tell malloc where start of impure now is. */
2273 /* Also arrange for warnings when nearly out of space. */
2274 #ifndef SYSTEM_MALLOC
2276 /* On Windows, this was done before dumping, and that once suffices.
2277 Meanwhile, my_edata is not valid on Windows. */
2278 memory_warnings (my_edata
, malloc_warning
);
2279 #endif /* not WINDOWSNT */
2281 #if !defined (SYSTEM_MALLOC) && defined (HAVE_GTK_AND_PTHREAD) && !defined SYNC_INPUT
2282 /* Pthread may call malloc before main, and then we will get an endless
2283 loop, because pthread_self (see alloc.c) calls malloc the first time
2284 it is called on some systems. */
2285 reset_malloc_hooks ();
2287 #ifdef DOUG_LEA_MALLOC
2288 malloc_state_ptr
= malloc_get_state ();
2291 #ifdef USE_MMAP_FOR_BUFFERS
2294 unexec (SDATA (filename
),
2295 !NILP (symfile
) ? SDATA (symfile
) : 0, my_edata
, 0, 0);
2296 #ifdef USE_MMAP_FOR_BUFFERS
2299 #ifdef DOUG_LEA_MALLOC
2300 free (malloc_state_ptr
);
2302 #endif /* not VMS */
2306 return unbind_to (count
, Qnil
);
2309 #endif /* not HAVE_SHM */
2311 #endif /* not CANNOT_DUMP */
2314 /* Recover from setlocale (LC_ALL, ""). */
2318 /* The Emacs Lisp reader needs LC_NUMERIC to be "C",
2319 so that numbers are read and printed properly for Emacs Lisp. */
2320 setlocale (LC_NUMERIC
, "C");
2323 /* Set system locale CATEGORY, with previous locale *PLOCALE, to
2326 synchronize_locale (category
, plocale
, desired_locale
)
2328 Lisp_Object
*plocale
;
2329 Lisp_Object desired_locale
;
2331 if (! EQ (*plocale
, desired_locale
))
2333 *plocale
= desired_locale
;
2334 setlocale (category
, (STRINGP (desired_locale
)
2335 ? (char *) SDATA (desired_locale
)
2340 /* Set system time locale to match Vsystem_time_locale, if possible. */
2342 synchronize_system_time_locale ()
2344 synchronize_locale (LC_TIME
, &Vprevious_system_time_locale
,
2345 Vsystem_time_locale
);
2348 /* Set system messages locale to match Vsystem_messages_locale, if
2351 synchronize_system_messages_locale ()
2354 synchronize_locale (LC_MESSAGES
, &Vprevious_system_messages_locale
,
2355 Vsystem_messages_locale
);
2358 #endif /* HAVE_SETLOCALE */
2365 decode_env_path (evarname
, defalt
)
2366 char *evarname
, *defalt
;
2368 register char *path
, *p
;
2369 Lisp_Object lpath
, element
, tem
;
2371 /* It's okay to use getenv here, because this function is only used
2372 to initialize variables when Emacs starts up, and isn't called
2375 path
= (char *) getenv (evarname
);
2381 /* Ensure values from the environment use the proper directory separator. */
2384 p
= alloca (strlen (path
) + 1);
2388 if ('/' == DIRECTORY_SEP
)
2389 dostounix_filename (path
);
2391 unixtodos_filename (path
);
2397 p
= index (path
, SEPCHAR
);
2398 if (!p
) p
= path
+ strlen (path
);
2399 element
= (p
- path
? make_string (path
, p
- path
)
2400 : build_string ("."));
2402 /* Add /: to the front of the name
2403 if it would otherwise be treated as magic. */
2404 tem
= Ffind_file_name_handler (element
, Qt
);
2406 /* However, if the handler says "I'm safe",
2407 don't bother adding /:. */
2411 prop
= Fget (tem
, intern ("safe-magic"));
2417 element
= concat2 (build_string ("/:"), element
);
2419 lpath
= Fcons (element
, lpath
);
2425 return Fnreverse (lpath
);
2431 Qfile_name_handler_alist
= intern ("file-name-handler-alist");
2432 staticpro (&Qfile_name_handler_alist
);
2436 defsubr (&Sdump_emacs_data
);
2438 defsubr (&Sdump_emacs
);
2442 defsubr (&Skill_emacs
);
2444 defsubr (&Sinvocation_name
);
2445 defsubr (&Sinvocation_directory
);
2447 DEFVAR_LISP ("command-line-args", &Vcommand_line_args
,
2448 doc
: /* Args passed by shell to Emacs, as a list of strings.
2449 Many arguments are deleted from the list as they are processed. */);
2451 DEFVAR_LISP ("system-type", &Vsystem_type
,
2452 doc
: /* Value is symbol indicating type of operating system you are using.
2454 `gnu/linux' compiled for a GNU/Linux system.
2455 `darwin' compiled for Darwin (GNU-Darwin, Mac OS X, ...).
2456 `macos' compiled for Mac OS 9.
2457 `ms-dos' compiled as an MS-DOS application.
2458 `windows-nt' compiled as a native W32 application.
2459 `cygwin' compiled using the Cygwin library.
2460 `vax-vms' or `axp-vms': compiled for a (Open)VMS system.
2461 Anything else indicates some sort of Unix system. */);
2462 Vsystem_type
= intern (SYSTEM_TYPE
);
2464 DEFVAR_LISP ("system-configuration", &Vsystem_configuration
,
2465 doc
: /* Value is string indicating configuration Emacs was built for.
2466 On MS-Windows, the value reflects the OS flavor and version on which
2467 Emacs is running. */);
2468 Vsystem_configuration
= build_string (EMACS_CONFIGURATION
);
2470 DEFVAR_LISP ("system-configuration-options", &Vsystem_configuration_options
,
2471 doc
: /* String containing the configuration options Emacs was built with. */);
2472 Vsystem_configuration_options
= build_string (EMACS_CONFIG_OPTIONS
);
2474 DEFVAR_BOOL ("noninteractive", &noninteractive1
,
2475 doc
: /* Non-nil means Emacs is running without interactive terminal. */);
2477 DEFVAR_LISP ("kill-emacs-hook", &Vkill_emacs_hook
,
2478 doc
: /* Hook to be run when kill-emacs is called.
2479 Since `kill-emacs' may be invoked when the terminal is disconnected (or
2480 in other similar situations), functions placed on this hook should not
2481 expect to be able to interact with the user. To ask for confirmation,
2482 see `kill-emacs-query-functions' instead.
2484 The hook is not run in batch mode, i.e., if `noninteractive' is non-nil. */);
2485 Vkill_emacs_hook
= Qnil
;
2487 empty_string
= build_string ("");
2488 staticpro (&empty_string
);
2490 DEFVAR_INT ("emacs-priority", &emacs_priority
,
2491 doc
: /* Priority for Emacs to run at.
2492 This value is effective only if set before Emacs is dumped,
2493 and only if the Emacs executable is installed with setuid to permit
2494 it to change priority. (Emacs sets its uid back to the real uid.)
2495 Currently, you need to define SET_EMACS_PRIORITY in `config.h'
2496 before you compile Emacs, to enable the code for this feature. */);
2499 DEFVAR_LISP ("path-separator", &Vpath_separator
,
2500 doc
: /* The directory separator in search paths, as a string. */);
2503 Vpath_separator
= make_string (&c
, 1);
2506 DEFVAR_LISP ("invocation-name", &Vinvocation_name
,
2507 doc
: /* The program name that was used to run Emacs.
2508 Any directory names are omitted. */);
2510 DEFVAR_LISP ("invocation-directory", &Vinvocation_directory
,
2511 doc
: /* The directory in which the Emacs executable was found, to run it.
2512 The value is nil if that directory's name is not known. */);
2514 DEFVAR_LISP ("installation-directory", &Vinstallation_directory
,
2515 doc
: /* A directory within which to look for the `lib-src' and `etc' directories.
2516 This is non-nil when we can't find those directories in their standard
2517 installed locations, but we can find them
2518 near where the Emacs executable was found. */);
2519 Vinstallation_directory
= Qnil
;
2521 DEFVAR_LISP ("system-messages-locale", &Vsystem_messages_locale
,
2522 doc
: /* System locale for messages. */);
2523 Vsystem_messages_locale
= Qnil
;
2525 DEFVAR_LISP ("previous-system-messages-locale",
2526 &Vprevious_system_messages_locale
,
2527 doc
: /* Most recently used system locale for messages. */);
2528 Vprevious_system_messages_locale
= Qnil
;
2530 DEFVAR_LISP ("system-time-locale", &Vsystem_time_locale
,
2531 doc
: /* System locale for time. */);
2532 Vsystem_time_locale
= Qnil
;
2534 DEFVAR_LISP ("previous-system-time-locale", &Vprevious_system_time_locale
,
2535 doc
: /* Most recently used system locale for time. */);
2536 Vprevious_system_time_locale
= Qnil
;
2539 /* arch-tag: 7bfd356a-c720-4612-8ab6-aa4222931c2e
2540 (do not change this comment) */