1 /* Fully extensible Emacs, running on Unix, intended for GNU.
2 Copyright (C) 1985, 1986, 1987, 1993, 1994, 1995, 1997, 1998, 1999,
3 2001, 2002, 2003, 2004, 2005, 2006 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"
60 #include "termhooks.h"
70 #include <sys/resource.h>
73 #ifdef HAVE_PERSONALITY_LINUX32
74 #include <sys/personality.h>
82 #if !defined (USG) || defined (BSD_PGRPS)
84 #define setpgrp setpgid
88 extern void malloc_warning
P_ ((char *));
89 extern void set_time_zone_rule
P_ ((char *));
91 extern char *index
P_ ((const char *, int));
94 /* Make these values available in GDB, which doesn't see macros. */
102 int gdb_use_union
= 0;
104 int gdb_use_union
= 1;
106 EMACS_INT gdb_valbits
= VALBITS
;
107 EMACS_INT gdb_gctypebits
= GCTYPEBITS
;
109 EMACS_INT gdb_data_seg_bits
= DATA_SEG_BITS
;
111 EMACS_INT gdb_data_seg_bits
= 0;
113 EMACS_INT PVEC_FLAG
= PSEUDOVECTOR_FLAG
;
114 EMACS_INT gdb_array_mark_flag
= ARRAY_MARK_FLAG
;
115 /* GDB might say "No enum type named pvec_type" if we don't have at
116 least one symbol with that type, and then xbacktrace could fail. */
117 enum pvec_type gdb_pvec_type
= PVEC_TYPE_MASK
;
119 /* Command line args from shell, as list of strings. */
120 Lisp_Object Vcommand_line_args
;
122 /* The name under which Emacs was invoked, with any leading directory
124 Lisp_Object Vinvocation_name
;
126 /* The directory name from which Emacs was invoked. */
127 Lisp_Object Vinvocation_directory
;
129 /* The directory name in which to find subdirs such as lisp and etc.
130 nil means get them only from PATH_LOADSEARCH. */
131 Lisp_Object Vinstallation_directory
;
133 /* Hook run by `kill-emacs' before it does really anything. */
134 Lisp_Object Vkill_emacs_hook
;
136 /* An empty lisp string. To avoid having to build any other. */
137 Lisp_Object empty_string
;
139 /* Search path separator. */
140 Lisp_Object Vpath_separator
;
142 /* Set nonzero after Emacs has started up the first time.
143 Prevents reinitialization of the Lisp world and keymaps
144 on subsequent starts. */
147 #ifdef DOUG_LEA_MALLOC
148 /* Preserves a pointer to the memory allocated that copies that
149 static data inside glibc's malloc. */
150 void *malloc_state_ptr
;
151 /* From glibc, a routine that returns a copy of the malloc internal state. */
152 extern void *malloc_get_state ();
153 /* From glibc, a routine that overwrites the malloc internal state. */
154 extern int malloc_set_state ();
155 /* Non-zero if the MALLOC_CHECK_ enviroment variable was set while
156 dumping. Used to work around a bug in glibc's malloc. */
157 int malloc_using_checking
;
160 /* Variable whose value is symbol giving operating system type. */
161 Lisp_Object Vsystem_type
;
163 /* Variable whose value is string giving configuration built for. */
164 Lisp_Object Vsystem_configuration
;
166 /* Variable whose value is string giving configuration options,
167 for use when reporting bugs. */
168 Lisp_Object Vsystem_configuration_options
;
170 Lisp_Object Qfile_name_handler_alist
;
172 /* Current and previous system locales for messages and time. */
173 Lisp_Object Vsystem_messages_locale
;
174 Lisp_Object Vprevious_system_messages_locale
;
175 Lisp_Object Vsystem_time_locale
;
176 Lisp_Object Vprevious_system_time_locale
;
178 /* If non-zero, emacs should not attempt to use a window-specific code,
179 but instead should use the virtual terminal under which it was started. */
180 int inhibit_window_system
;
182 /* If nonzero, set Emacs to run at this priority. This is also used
183 in child_setup and sys_suspend to make sure subshells run at normal
184 priority; those functions have their own extern declaration. */
185 EMACS_INT emacs_priority
;
187 /* If non-zero, a filter or a sentinel is running. Tested to save the match
188 data on the first attempt to change it inside asynchronous code. */
189 int running_asynch_code
;
193 extern int inherited_pgroup
;
196 #ifdef HAVE_X_WINDOWS
197 /* If non-zero, -d was specified, meaning we're using some window system. */
201 /* An address near the bottom of the stack.
202 Tells GC how to save a copy of the stack. */
205 /* The address where the heap starts (from the first sbrk (0) call). */
206 static void *my_heap_start
;
208 /* The gap between BSS end and heap start as far as we can tell. */
209 static unsigned long heap_bss_diff
;
211 /* If the gap between BSS end and heap start is larger than this we try to
212 work around it, and if that fails, output a warning in dump-emacs. */
213 #define MAX_HEAP_BSS_DIFF (1024*1024)
216 #ifdef HAVE_WINDOW_SYSTEM
217 extern Lisp_Object Vwindow_system
;
218 #endif /* HAVE_WINDOW_SYSTEM */
220 extern Lisp_Object Vauto_save_list_file_name
;
222 extern Lisp_Object Vinhibit_redisplay
;
224 #ifdef USG_SHARED_LIBRARIES
225 /* If nonzero, this is the place to put the end of the writable segment
228 unsigned int bss_end
= 0;
231 /* Nonzero means running Emacs without interactive terminal. */
235 /* Value of Lisp variable `noninteractive'.
236 Normally same as C variable `noninteractive'
237 but nothing terrible happens if user sets this one. */
241 /* Save argv and argc. */
245 static void sort_args ();
246 void syms_of_emacs ();
248 /* MSVC needs each string be shorter than 2048 bytes, so the usage
249 strings below are split to not overflow this limit. */
251 Usage: %s [OPTION-OR-FILENAME]...\n\
253 Run Emacs, the extensible, customizable, self-documenting real-time\n\
254 display editor. The recommended way to start Emacs for normal editing\n\
255 is with no options at all.\n\
257 Run M-x info RET m emacs RET m emacs invocation RET inside Emacs to\n\
258 read the main documentation for these command-line arguments.\n\
260 Initialization options:\n\
262 --batch do not do interactive display; implies -q\n\
263 --debug-init enable Emacs Lisp debugger for init file\n\
264 --display, -d DISPLAY use X server DISPLAY\n\
265 --multibyte, --no-unibyte inhibit the effect of EMACS_UNIBYTE\n\
266 --no-desktop do not load a saved desktop\n\
267 --no-init-file, -q load neither ~/.emacs nor default.el\n\
268 --no-shared-memory, -nl do not use shared memory\n\
269 --no-site-file do not load site-start.el\n\
270 --no-splash do not display a splash screen on startup\n\
271 --no-window-system, -nw do not communicate with X, ignoring $DISPLAY\n\
272 --quick, -Q equivalent to -q --no-site-file --no-splash\n\
273 --script FILE run FILE as an Emacs Lisp script\n\
274 --terminal, -t DEVICE use DEVICE for terminal I/O\n\
275 --unibyte, --no-multibyte run Emacs in unibyte mode\n\
276 --user, -u USER load ~USER/.emacs instead of your own\n\
282 FILE visit FILE using find-file\n\
283 +LINE FILE visit FILE using find-file, then go to line LINE\n\
284 +LINE:COLUMN FILE visit FILE using find-file, then go to line LINE,\n\
286 --directory, -L DIR add DIR to variable load-path\n\
287 --eval EXPR evaluate Emacs Lisp expression EXPR\n\
288 --execute EXPR evaluate Emacs Lisp expression EXPR\n\
289 --file FILE visit FILE using find-file\n\
290 --find-file FILE visit FILE using find-file\n\
291 --funcall, -f FUNC call Emacs Lisp function FUNC with no arguments\n\
292 --insert FILE insert contents of FILE into current buffer\n\
293 --kill exit without asking for confirmation\n\
294 --load, -l FILE load Emacs Lisp FILE using the load function\n\
295 --visit FILE visit FILE using find-file\n\
301 --background-color, -bg COLOR window background color\n\
302 --basic-display, -D disable many display features;\n\
303 used for debugging Emacs\n\
304 --border-color, -bd COLOR main border color\n\
305 --border-width, -bw WIDTH width of main border\n\
306 --color, --color=MODE color mode for character terminals;\n\
307 MODE defaults to `auto', and can also\n\
308 be `never', `auto', `always',\n\
309 or a mode name like `ansi8'\n\
310 --cursor-color, -cr COLOR color of the Emacs cursor indicating point\n\
311 --font, -fn FONT default font; must be fixed-width\n\
312 --foreground-color, -fg COLOR window foreground color\n\
313 --fullheight, -fh make the first frame high as the screen\n\
314 --fullscreen, -fs make first frame fullscreen\n\
315 --fullwidth, -fw make the first frame wide as the screen\n\
316 --geometry, -g GEOMETRY window geometry\n\
317 --no-bitmap-icon, -nbi do not use picture of gnu for Emacs icon\n\
318 --iconic start Emacs in iconified state\n\
319 --internal-border, -ib WIDTH width between text and main border\n\
320 --line-spacing, -lsp PIXELS additional space to put between lines\n\
321 --mouse-color, -ms COLOR mouse cursor color in Emacs window\n\
322 --name NAME title for initial Emacs frame\n\
323 --no-blinking-cursor, -nbc disable blinking cursor\n\
324 --reverse-video, -r, -rv switch foreground and background\n\
325 --title, -T TITLE title for initial Emacs frame\n\
326 --vertical-scroll-bars, -vb enable vertical scroll bars\n\
327 --xrm XRESOURCES set additional X resources\n\
328 --help display this help and exit\n\
329 --version output version information and exit\n\
333 You can generally also specify long option names with a single -; for\n\
334 example, -batch as well as --batch. You can use any unambiguous\n\
335 abbreviation for a --option.\n\
337 Various environment variables and window system resources also affect\n\
338 Emacs' operation. See the main documentation.\n\
340 Report bugs to %s. First, please see the Bugs\n\
341 section of the Emacs manual or the file BUGS.\n"
344 /* Signal code for the fatal signal that was received. */
345 int fatal_error_code
;
347 /* Nonzero if handling a fatal error already. */
348 int fatal_error_in_progress
;
350 /* If non-null, call this function from fatal_error_signal before
351 committing suicide. */
353 void (*fatal_error_signal_hook
) P_ ((void));
355 #ifdef HAVE_GTK_AND_PTHREAD
356 /* When compiled with GTK and running under Gnome, multiple threads meay be
357 created. Keep track of our main thread to make sure signals are delivered
358 to it (see syssignal.h). */
360 pthread_t main_thread
;
364 #if defined (SIGUSR1) || defined (SIGUSR2)
366 handle_user_signal (sig
)
369 struct input_event buf
;
371 SIGNAL_THREAD_CHECK (sig
);
372 bzero (&buf
, sizeof buf
);
373 buf
.kind
= USER_SIGNAL_EVENT
;
374 buf
.frame_or_window
= selected_frame
;
376 kbd_buffer_store_event (&buf
);
378 kbd_buffer_store_event (&buf
);
382 /* Handle bus errors, invalid instruction, etc. */
384 fatal_error_signal (sig
)
387 SIGNAL_THREAD_CHECK (sig
);
388 fatal_error_code
= sig
;
389 signal (sig
, SIG_DFL
);
391 TOTALLY_UNBLOCK_INPUT
;
393 /* If fatal error occurs in code below, avoid infinite recursion. */
394 if (! fatal_error_in_progress
)
396 fatal_error_in_progress
= 1;
398 shut_down_emacs (sig
, 0, Qnil
);
402 LIB$
STOP (SS$_ABORT
);
404 /* Signal the same code; this time it will really be fatal.
405 Remember that since we're in a signal handler, the signal we're
406 going to send is probably blocked, so we have to unblock it if we
407 want to really receive it. */
409 sigunblock (sigmask (fatal_error_code
));
412 if (fatal_error_signal_hook
)
413 fatal_error_signal_hook ();
415 kill (getpid (), fatal_error_code
);
421 /* Handler for SIGDANGER. */
423 memory_warning_signal (sig
)
426 signal (sig
, memory_warning_signal
);
427 SIGNAL_THREAD_CHECK (sig
);
429 malloc_warning ("Operating system warns that virtual memory is running low.\n");
431 /* It might be unsafe to call do_auto_save now. */
432 force_auto_save_soon ();
436 /* We define abort, rather than using it from the library,
437 so that GDB can return from a breakpoint here.
438 MSDOS has its own definition in msdos.c. */
440 #if ! defined (DOS_NT) && ! defined (NO_ABORT)
442 #ifndef ABORT_RETURN_TYPE
443 #define ABORT_RETURN_TYPE void
449 kill (getpid (), SIGABRT
);
450 /* This shouldn't be executed, but it prevents a warning. */
456 /* Code for dealing with Lisp access to the Unix command line. */
459 init_cmdargs (argc
, argv
, skip_args
)
465 Lisp_Object name
, dir
, tem
;
466 int count
= SPECPDL_INDEX ();
467 Lisp_Object raw_name
;
472 raw_name
= build_string (argv
[0]);
474 /* Add /: to the front of the name
475 if it would otherwise be treated as magic. */
476 tem
= Ffind_file_name_handler (raw_name
, Qt
);
478 raw_name
= concat2 (build_string ("/:"), raw_name
);
480 Vinvocation_name
= Ffile_name_nondirectory (raw_name
);
481 Vinvocation_directory
= Ffile_name_directory (raw_name
);
483 /* If we got no directory in argv[0], search PATH to find where
484 Emacs actually came from. */
485 if (NILP (Vinvocation_directory
))
488 int yes
= openp (Vexec_path
, Vinvocation_name
,
489 Vexec_suffixes
, &found
, make_number (X_OK
));
492 /* Add /: to the front of the name
493 if it would otherwise be treated as magic. */
494 tem
= Ffind_file_name_handler (found
, Qt
);
496 found
= concat2 (build_string ("/:"), found
);
497 Vinvocation_directory
= Ffile_name_directory (found
);
501 if (!NILP (Vinvocation_directory
)
502 && NILP (Ffile_name_absolute_p (Vinvocation_directory
)))
503 /* Emacs was started with relative path, like ./emacs.
505 Vinvocation_directory
= Fexpand_file_name (Vinvocation_directory
, Qnil
);
507 Vinstallation_directory
= Qnil
;
509 if (!NILP (Vinvocation_directory
))
511 dir
= Vinvocation_directory
;
512 name
= Fexpand_file_name (Vinvocation_name
, dir
);
515 Lisp_Object tem
, lib_src_exists
;
516 Lisp_Object etc_exists
, info_exists
;
518 /* See if dir contains subdirs for use by Emacs.
519 Check for the ones that would exist in a build directory,
520 not including lisp and info. */
521 tem
= Fexpand_file_name (build_string ("lib-src"), dir
);
522 lib_src_exists
= Ffile_exists_p (tem
);
525 /* MSDOS installations frequently remove lib-src, but we still
526 must set installation-directory, or else info won't find
527 its files (it uses the value of installation-directory). */
528 tem
= Fexpand_file_name (build_string ("info"), dir
);
529 info_exists
= Ffile_exists_p (tem
);
534 if (!NILP (lib_src_exists
) || !NILP (info_exists
))
536 tem
= Fexpand_file_name (build_string ("etc"), dir
);
537 etc_exists
= Ffile_exists_p (tem
);
538 if (!NILP (etc_exists
))
540 Vinstallation_directory
541 = Ffile_name_as_directory (dir
);
546 /* See if dir's parent contains those subdirs. */
547 tem
= Fexpand_file_name (build_string ("../lib-src"), dir
);
548 lib_src_exists
= Ffile_exists_p (tem
);
552 /* See the MSDOS commentary above. */
553 tem
= Fexpand_file_name (build_string ("../info"), dir
);
554 info_exists
= Ffile_exists_p (tem
);
559 if (!NILP (lib_src_exists
) || !NILP (info_exists
))
561 tem
= Fexpand_file_name (build_string ("../etc"), dir
);
562 etc_exists
= Ffile_exists_p (tem
);
563 if (!NILP (etc_exists
))
565 tem
= Fexpand_file_name (build_string (".."), dir
);
566 Vinstallation_directory
567 = Ffile_name_as_directory (tem
);
572 /* If the Emacs executable is actually a link,
573 next try the dir that the link points into. */
574 tem
= Ffile_symlink_p (name
);
577 name
= Fexpand_file_name (tem
, dir
);
578 dir
= Ffile_name_directory (name
);
585 Vcommand_line_args
= Qnil
;
587 for (i
= argc
- 1; i
>= 0; i
--)
589 if (i
== 0 || i
> skip_args
)
590 /* For the moment, we keep arguments as is in unibyte strings.
591 They are decoded in the function command-line after we know
592 locale-coding-system. */
594 = Fcons (make_unibyte_string (argv
[i
], strlen (argv
[i
])),
598 unbind_to (count
, Qnil
);
601 DEFUN ("invocation-name", Finvocation_name
, Sinvocation_name
, 0, 0, 0,
602 doc
: /* Return the program name that was used to run Emacs.
603 Any directory names are omitted. */)
606 return Fcopy_sequence (Vinvocation_name
);
609 DEFUN ("invocation-directory", Finvocation_directory
, Sinvocation_directory
,
611 doc
: /* Return the directory name in which the Emacs executable was located. */)
614 return Fcopy_sequence (Vinvocation_directory
);
619 #ifdef LINK_CRTL_SHARE
620 #ifdef SHARABLE_LIB_BUG
621 extern noshare
char **environ
;
622 #endif /* SHARABLE_LIB_BUG */
623 #endif /* LINK_CRTL_SHARE */
627 /* A valid but unlikely value for the TZ environment value.
628 It is OK (though a bit slower) if the user actually chooses this value. */
629 static char dump_tz
[] = "UtC0";
632 #ifndef ORDINARY_LINK
633 /* We don't include crtbegin.o and crtend.o in the link,
634 so these functions and variables might be missed.
635 Provide dummy definitions to avoid error.
636 (We don't have any real constructors or destructors.) */
638 #ifndef GCC_CTORS_IN_LIBC
639 void __do_global_ctors ()
641 void __do_global_ctors_aux ()
643 void __do_global_dtors ()
645 /* GNU/Linux has a bug in its library; avoid an error. */
647 char * __CTOR_LIST__
[2] = { (char *) (-1), 0 };
649 char * __DTOR_LIST__
[2] = { (char *) (-1), 0 };
650 #endif /* GCC_CTORS_IN_LIBC */
653 #endif /* __GNUC__ */
654 #endif /* ORDINARY_LINK */
656 /* Test whether the next argument in ARGV matches SSTR or a prefix of
657 LSTR (at least MINLEN characters). If so, then if VALPTR is non-null
658 (the argument is supposed to have a value) store in *VALPTR either
659 the next argument or the portion of this one after the equal sign.
660 ARGV is read starting at position *SKIPPTR; this index is advanced
661 by the number of arguments used.
663 Too bad we can't just use getopt for all of this, but we don't have
664 enough information to do it right. */
667 argmatch (argv
, argc
, sstr
, lstr
, minlen
, valptr
, skipptr
)
680 /* Don't access argv[argc]; give up in advance. */
681 if (argc
<= *skipptr
+ 1)
684 arg
= argv
[*skipptr
+1];
687 if (strcmp (arg
, sstr
) == 0)
691 *valptr
= argv
[*skipptr
+2];
698 arglen
= (valptr
!= NULL
&& (p
= index (arg
, '=')) != NULL
699 ? p
- arg
: strlen (arg
));
700 if (lstr
== 0 || arglen
< minlen
|| strncmp (arg
, lstr
, arglen
) != 0)
702 else if (valptr
== NULL
)
713 else if (argv
[*skipptr
+2] != NULL
)
715 *valptr
= argv
[*skipptr
+2];
725 #ifdef DOUG_LEA_MALLOC
727 /* malloc can be invoked even before main (e.g. by the dynamic
728 linker), so the dumped malloc state must be restored as early as
729 possible using this special hook. */
732 malloc_initialize_hook ()
735 extern char **environ
;
740 if (!malloc_using_checking
)
741 /* Work around a bug in glibc's malloc. MALLOC_CHECK_ must be
742 ignored if the heap to be restored was constructed without
743 malloc checking. Can't use unsetenv, since that calls malloc. */
747 for (p
= environ
; p
&& *p
; p
++)
748 if (strncmp (*p
, "MALLOC_CHECK_=", 14) == 0)
757 malloc_set_state (malloc_state_ptr
);
758 #ifndef XMALLOC_OVERRUN_CHECK
759 free (malloc_state_ptr
);
764 if (my_heap_start
== 0)
765 my_heap_start
= sbrk (0);
766 malloc_using_checking
= getenv ("MALLOC_CHECK_") != NULL
;
770 void (*__malloc_initialize_hook
) () = malloc_initialize_hook
;
772 #endif /* DOUG_LEA_MALLOC */
775 #define REPORT_EMACS_BUG_ADDRESS "bug-gnu-emacs@gnu.org"
776 #define REPORT_EMACS_BUG_PRETEST_ADDRESS "emacs-pretest-bug@gnu.org"
778 /* This function is used to determine an address to which bug report should
782 bug_reporting_address ()
788 temp
= Fsymbol_value (intern ("emacs-version"));
790 /* When `emacs-version' is invalid, use normal address. */
792 return REPORT_EMACS_BUG_ADDRESS
;
794 string
= SDATA (temp
);
796 /* Count dots in `emacs-version'. */
804 /* When `emacs-version' has at least three dots, it is development or
805 pretest version of Emacs. */
806 return count
>= 3 ? REPORT_EMACS_BUG_PRETEST_ADDRESS
: REPORT_EMACS_BUG_ADDRESS
;
826 char stack_bottom_variable
;
827 int do_initial_setlocale
;
832 #ifdef HAVE_SETRLIMIT
839 extern Lisp_Object
*stack_base
;
845 extern char my_endbss
[];
846 extern char *my_endbss_static
;
848 if (my_heap_start
== 0)
849 my_heap_start
= sbrk (0);
851 heap_bss_diff
= (char *)my_heap_start
- max (my_endbss
, my_endbss_static
);
854 #ifdef LINUX_SBRK_BUG
858 #ifdef RUN_TIME_REMAP
860 run_time_remap (argv
[0]);
865 unexec_init_emacs_zone ();
868 sort_args (argc
, argv
);
870 while (argv
[argc
]) argc
++;
872 if (argmatch (argv
, argc
, "-version", "--version", 3, NULL
, &skip_args
)
873 /* We don't know the version number unless this is a dumped Emacs.
874 So ignore --version otherwise. */
878 tem
= Fsymbol_value (intern ("emacs-version"));
881 fprintf (stderr
, "Invalid value of `emacs-version'\n");
886 printf ("GNU Emacs %s\n", SDATA (tem
));
887 printf ("Copyright (C) 2006 Free Software Foundation, Inc.\n");
888 printf ("GNU Emacs comes with ABSOLUTELY NO WARRANTY.\n");
889 printf ("You may redistribute copies of Emacs\n");
890 printf ("under the terms of the GNU General Public License.\n");
891 printf ("For more information about these matters, ");
892 printf ("see the file named COPYING.\n");
897 #ifdef HAVE_PERSONALITY_LINUX32
898 /* See if there is a gap between the end of BSS and the heap.
899 In that case, set personality and exec ourself again. */
901 && (strcmp (argv
[argc
-1], "dump") == 0
902 || strcmp (argv
[argc
-1], "bootstrap") == 0)
903 && heap_bss_diff
> MAX_HEAP_BSS_DIFF
)
905 if (! getenv ("EMACS_HEAP_EXEC"))
907 /* Set this so we only do this once. */
908 putenv("EMACS_HEAP_EXEC=true");
910 /* A flag to turn off address randomization which is introduced
911 in linux kernel shipped with fedora core 4 */
912 #define ADD_NO_RANDOMIZE 0x0040000
913 personality (PER_LINUX32
| ADD_NO_RANDOMIZE
);
914 #undef ADD_NO_RANDOMIZE
916 execvp (argv
[0], argv
);
918 /* If the exec fails, try to dump anyway. */
922 #endif /* HAVE_PERSONALITY_LINUX32 */
925 /* Map in shared memory, if we are using that. */
927 if (argmatch (argv
, argc
, "-nl", "--no-shared-memory", 6, NULL
, &skip_args
))
930 /* The shared memory was just restored, which clobbered this. */
936 /* The shared memory was just restored, which clobbered this. */
943 extern int malloc_cookie
;
944 /* This helps out unexnext.c. */
946 if (malloc_jumpstart (malloc_cookie
) != 0)
947 printf ("malloc jumpstart failed!\n");
952 /* Skip process serial number passed in the form -psn_x_y as
953 command-line argument. The WindowServer adds this option when
954 Emacs is invoked from the Finder or by the `open' command. In
955 these cases, the working directory becomes `/', so we change it
956 to the user's home directory. */
957 if (argc
> skip_args
+ 1 && strncmp (argv
[skip_args
+1], "-psn_", 5) == 0)
959 chdir (getenv ("HOME"));
965 /* If -map specified, map the data file in. */
968 if (argmatch (argv
, argc
, "-map", "--map-data", 3, &file
, &skip_args
))
972 #ifdef LINK_CRTL_SHARE
973 #ifdef SHARABLE_LIB_BUG
974 /* Bletcherous shared libraries! */
976 stdin
= fdopen (0, "r");
978 stdout
= fdopen (1, "w");
980 stderr
= fdopen (2, "w");
983 #endif /* SHARABLE_LIB_BUG */
984 #endif /* LINK_CRTL_SHARE */
987 #if defined (HAVE_SETRLIMIT) && defined (RLIMIT_STACK)
988 /* Extend the stack space available.
989 Don't do that if dumping, since some systems (e.g. DJGPP)
990 might define a smaller stack limit at that time. */
993 && (!noninteractive
|| initialized
)
995 && !getrlimit (RLIMIT_STACK
, &rlim
))
998 extern size_t re_max_failures
;
999 /* Approximate the amount regex.c needs per unit of re_max_failures. */
1000 int ratio
= 20 * sizeof (char *);
1001 /* Then add 33% to cover the size of the smaller stacks that regex.c
1002 successively allocates and discards, on its way to the maximum. */
1004 /* Add in some extra to cover
1005 what we're likely to use for other reasons. */
1006 newlim
= re_max_failures
* ratio
+ 200000;
1008 /* NetBSD (at least NetBSD 1.2G and former) has a bug in its
1009 stack allocation routine for new process that the allocation
1010 fails if stack limit is not on page boundary. So, round up the
1011 new limit to page boundary. */
1012 newlim
= (newlim
+ getpagesize () - 1) / getpagesize () * getpagesize();
1014 if (newlim
> rlim
.rlim_max
)
1016 newlim
= rlim
.rlim_max
;
1017 /* Don't let regex.c overflow the stack we have. */
1018 re_max_failures
= (newlim
- 200000) / ratio
;
1020 if (rlim
.rlim_cur
< newlim
)
1021 rlim
.rlim_cur
= newlim
;
1023 setrlimit (RLIMIT_STACK
, &rlim
);
1025 #endif /* HAVE_SETRLIMIT and RLIMIT_STACK */
1027 /* Record (approximately) where the stack begins. */
1028 stack_bottom
= &stack_bottom_variable
;
1030 #ifdef USG_SHARED_LIBRARIES
1032 brk ((void *)bss_end
);
1037 #ifndef SYSTEM_MALLOC
1038 /* Arrange to get warning messages as memory fills up. */
1039 memory_warnings (0, malloc_warning
);
1041 /* Call malloc at least once, to run the initial __malloc_hook.
1042 Also call realloc and free for consistency. */
1043 free (realloc (malloc (4), 4));
1046 /* Arrange to disable interrupt input inside malloc etc. */
1047 uninterrupt_malloc ();
1048 # endif /* not SYNC_INPUT */
1049 #endif /* not SYSTEM_MALLOC */
1051 #ifdef HAVE_GTK_AND_PTHREAD
1052 main_thread
= pthread_self ();
1053 #endif /* HAVE_GTK_AND_PTHREAD */
1055 #if defined (MSDOS) || defined (WINDOWSNT)
1056 /* We do all file input/output as binary files. When we need to translate
1057 newlines, we do that manually. */
1059 #endif /* MSDOS || WINDOWSNT */
1063 if (!isatty (fileno (stdin
)))
1064 setmode (fileno (stdin
), O_BINARY
);
1065 if (!isatty (fileno (stdout
)))
1068 setmode (fileno (stdout
), O_BINARY
);
1070 #else /* not __DJGPP__ >= 2 */
1071 (stdin
)->_flag
&= ~_IOTEXT
;
1072 (stdout
)->_flag
&= ~_IOTEXT
;
1073 (stderr
)->_flag
&= ~_IOTEXT
;
1074 #endif /* not __DJGPP__ >= 2 */
1077 #ifdef SET_EMACS_PRIORITY
1079 nice (emacs_priority
);
1081 #endif /* SET_EMACS_PRIORITY */
1083 /* Skip initial setlocale if LC_ALL is "C", as it's not needed in that case.
1084 The build procedure uses this while dumping, to ensure that the
1085 dumped Emacs does not have its system locale tables initialized,
1086 as that might cause screwups when the dumped Emacs starts up. */
1088 char *lc_all
= getenv ("LC_ALL");
1089 do_initial_setlocale
= ! lc_all
|| strcmp (lc_all
, "C");
1092 /* Set locale now, so that initial error messages are localized properly.
1093 fixup_locale must wait until later, since it builds strings. */
1094 if (do_initial_setlocale
)
1095 setlocale (LC_ALL
, "");
1097 #ifdef EXTRA_INITIALIZE
1101 inhibit_window_system
= 0;
1103 /* Handle the -t switch, which specifies filename to use as terminal. */
1107 if (argmatch (argv
, argc
, "-t", "--terminal", 4, &term
, &skip_args
))
1112 result
= emacs_open (term
, O_RDWR
, 0);
1115 char *errstring
= strerror (errno
);
1116 fprintf (stderr
, "%s: %s: %s\n", argv
[0], term
, errstring
);
1122 fprintf (stderr
, "%s: %s: not a tty\n", argv
[0], term
);
1125 fprintf (stderr
, "Using %s\n", term
);
1126 #ifdef HAVE_WINDOW_SYSTEM
1127 inhibit_window_system
= 1; /* -t => -nw */
1134 /* Command line option --no-windows is deprecated and thus not mentioned
1135 in the manual and usage informations. */
1136 if (argmatch (argv
, argc
, "-nw", "--no-window-system", 6, NULL
, &skip_args
)
1137 || argmatch (argv
, argc
, "-nw", "--no-windows", 6, NULL
, &skip_args
))
1138 inhibit_window_system
= 1;
1140 /* Handle the -batch switch, which means don't do interactive display. */
1142 if (argmatch (argv
, argc
, "-batch", "--batch", 5, NULL
, &skip_args
))
1145 Vundo_outer_limit
= Qnil
;
1147 if (argmatch (argv
, argc
, "-script", "--script", 3, &junk
, &skip_args
))
1149 noninteractive
= 1; /* Set batch mode. */
1150 /* Convert --script to --scriptload, un-skip it, and sort again
1151 so that it will be handled in proper sequence. */
1152 argv
[skip_args
- 1] = "-scriptload";
1154 sort_args (argc
, argv
);
1157 /* Handle the --help option, which gives a usage message. */
1158 if (argmatch (argv
, argc
, "-help", "--help", 3, NULL
, &skip_args
))
1160 printf (USAGE1
, argv
[0], USAGE2
);
1162 printf (USAGE4
, bug_reporting_address ());
1166 if (! noninteractive
)
1171 inherited_pgroup
= EMACS_GETPGRP (0);
1172 setpgrp (0, getpid ());
1175 #if defined (USG5) && defined (INTERRUPT_INPUT)
1183 /* Don't catch SIGHUP if dumping. */
1190 sigblock (sigmask (SIGHUP
));
1191 /* In --batch mode, don't catch SIGHUP if already ignored.
1192 That makes nohup work. */
1193 if (! noninteractive
1194 || signal (SIGHUP
, SIG_IGN
) != SIG_IGN
)
1195 signal (SIGHUP
, fatal_error_signal
);
1196 sigunblock (sigmask (SIGHUP
));
1201 ! noninteractive
|| initialized
1207 /* Don't catch these signals in batch mode if dumping.
1208 On some machines, this sets static data that would make
1209 signal fail to work right when the dumped Emacs is run. */
1210 signal (SIGQUIT
, fatal_error_signal
);
1211 signal (SIGILL
, fatal_error_signal
);
1212 signal (SIGTRAP
, fatal_error_signal
);
1214 signal (SIGUSR1
, handle_user_signal
);
1217 signal (SIGUSR2
, handle_user_signal
);
1220 signal (SIGABRT
, fatal_error_signal
);
1223 signal (SIGHWE
, fatal_error_signal
);
1226 signal (SIGPRE
, fatal_error_signal
);
1229 signal (SIGORE
, fatal_error_signal
);
1232 signal (SIGUME
, fatal_error_signal
);
1235 signal (SIGDLK
, fatal_error_signal
);
1238 signal (SIGCPULIM
, fatal_error_signal
);
1241 /* This is missing on some systems - OS/2, for example. */
1242 signal (SIGIOT
, fatal_error_signal
);
1245 signal (SIGEMT
, fatal_error_signal
);
1247 signal (SIGFPE
, fatal_error_signal
);
1249 signal (SIGBUS
, fatal_error_signal
);
1251 signal (SIGSEGV
, fatal_error_signal
);
1253 signal (SIGSYS
, fatal_error_signal
);
1255 signal (SIGTERM
, fatal_error_signal
);
1257 signal (SIGXCPU
, fatal_error_signal
);
1260 signal (SIGXFSZ
, fatal_error_signal
);
1261 #endif /* SIGXFSZ */
1264 /* This just means available memory is getting low. */
1265 signal (SIGDANGER
, memory_warning_signal
);
1269 /* 20 is SIGCHLD, 21 is SIGTTIN, 22 is SIGTTOU. */
1270 signal (SIGXCPU
, fatal_error_signal
);
1272 signal (SIGIOINT
, fatal_error_signal
);
1274 signal (SIGGRANT
, fatal_error_signal
);
1275 signal (SIGRETRACT
, fatal_error_signal
);
1276 signal (SIGSOUND
, fatal_error_signal
);
1277 signal (SIGMSG
, fatal_error_signal
);
1281 noninteractive1
= noninteractive
;
1283 /* Perform basic initializations (not merely interning symbols). */
1290 init_charset_once ();
1291 init_coding_once ();
1292 init_syntax_once (); /* Create standard syntax table. */
1293 init_category_once (); /* Create standard category table. */
1294 /* Must be done before init_buffer. */
1295 init_casetab_once ();
1296 init_buffer_once (); /* Create buffer table and some buffers. */
1297 init_minibuf_once (); /* Create list of minibuffers. */
1298 /* Must precede init_window_once. */
1300 /* Call syms_of_xfaces before init_window_once because that
1301 function creates Vterminal_frame. Termcap frames now use
1302 faces, and the face implementation uses some symbols as
1305 /* Call syms_of_keyboard before init_window_once because
1306 keyboard sets up symbols that include some face names that
1307 the X support will want to use. This can happen when
1308 CANNOT_DUMP is defined. */
1309 syms_of_keyboard ();
1312 /* init_window_once calls make_terminal_frame which on Mac OS
1313 creates a full-fledge output_mac type frame. This does not
1314 work correctly before syms_of_textprop, syms_of_macfns,
1315 syms_of_ccl, syms_of_fontset, syms_of_xterm, syms_of_search,
1316 syms_of_frame, mac_term_init, and init_keyboard have already
1318 syms_of_textprop ();
1324 syms_of_macselect ();
1330 mac_term_init (build_string ("Mac"), NULL
, NULL
);
1334 init_window_once (); /* Init the window system. */
1335 init_fileio_once (); /* Must precede any path manipulation. */
1336 #ifdef HAVE_WINDOW_SYSTEM
1337 init_fringe_once (); /* Swap bitmaps if necessary. */
1338 #endif /* HAVE_WINDOW_SYSTEM */
1343 if (do_initial_setlocale
)
1346 Vsystem_messages_locale
= Vprevious_system_messages_locale
;
1347 Vsystem_time_locale
= Vprevious_system_time_locale
;
1352 #ifdef CLASH_DETECTION
1358 running_asynch_code
= 0;
1360 /* Handle --unibyte and the EMACS_UNIBYTE envvar,
1361 but not while dumping. */
1364 int inhibit_unibyte
= 0;
1366 /* --multibyte overrides EMACS_UNIBYTE. */
1367 if (argmatch (argv
, argc
, "-no-unibyte", "--no-unibyte", 4, NULL
, &skip_args
)
1368 || argmatch (argv
, argc
, "-multibyte", "--multibyte", 4, NULL
, &skip_args
)
1369 /* Ignore EMACS_UNIBYTE before dumping. */
1370 || (!initialized
&& noninteractive
))
1371 inhibit_unibyte
= 1;
1373 /* --unibyte requests that we set up to do everything with single-byte
1374 buffers and strings. We need to handle this before calling
1375 init_lread, init_editfns and other places that generate Lisp strings
1376 from text in the environment. */
1377 /* Actually this shouldn't be needed as of 20.4 in a generally
1378 unibyte environment. As handa says, environment values
1379 aren't now decoded; also existing buffers are now made
1380 unibyte during startup if .emacs sets unibyte. Tested with
1381 8-bit data in environment variables and /etc/passwd, setting
1382 unibyte and Latin-1 in .emacs. -- Dave Love */
1383 if (argmatch (argv
, argc
, "-unibyte", "--unibyte", 4, NULL
, &skip_args
)
1384 || argmatch (argv
, argc
, "-no-multibyte", "--no-multibyte", 4, NULL
, &skip_args
)
1385 || (getenv ("EMACS_UNIBYTE") && !inhibit_unibyte
))
1387 Lisp_Object old_log_max
;
1388 Lisp_Object symbol
, tail
;
1390 symbol
= intern ("default-enable-multibyte-characters");
1391 Fset (symbol
, Qnil
);
1395 /* Erase pre-dump messages in *Messages* now so no abort. */
1396 old_log_max
= Vmessage_log_max
;
1397 XSETFASTINT (Vmessage_log_max
, 0);
1398 message_dolog ("", 0, 1, 0);
1399 Vmessage_log_max
= old_log_max
;
1402 for (tail
= Vbuffer_alist
; CONSP (tail
);
1407 buffer
= Fcdr (XCAR (tail
));
1408 /* Verify that all buffers are empty now, as they
1410 if (BUF_Z (XBUFFER (buffer
)) > BUF_BEG (XBUFFER (buffer
)))
1412 /* It is safe to do this crudely in an empty buffer. */
1413 XBUFFER (buffer
)->enable_multibyte_characters
= Qnil
;
1419 = argmatch (argv
, argc
, "-nl", "--no-loadup", 6, NULL
, &skip_args
);
1422 #ifdef HAVE_X_WINDOWS
1423 /* Stupid kludge to catch command-line display spec. We can't
1424 handle this argument entirely in window system dependent code
1425 because we don't even know which window system dependent code
1426 to run until we've recognized this argument. */
1428 char *displayname
= 0;
1429 int count_before
= skip_args
;
1431 /* Skip any number of -d options, but only use the last one. */
1434 int count_before_this
= skip_args
;
1436 if (argmatch (argv
, argc
, "-d", "--display", 3, &displayname
, &skip_args
))
1438 else if (argmatch (argv
, argc
, "-display", 0, 3, &displayname
, &skip_args
))
1443 count_before
= count_before_this
;
1446 /* If we have the form --display=NAME,
1447 convert it into -d name.
1448 This requires inserting a new element into argv. */
1449 if (displayname
!= 0 && skip_args
- count_before
== 1)
1451 char **new = (char **) xmalloc (sizeof (char *) * (argc
+ 2));
1454 for (j
= 0; j
< count_before
+ 1; j
++)
1456 new[count_before
+ 1] = "-d";
1457 new[count_before
+ 2] = displayname
;
1458 for (j
= count_before
+ 2; j
<argc
; j
++)
1459 new[j
+ 1] = argv
[j
];
1463 /* Change --display to -d, when its arg is separate. */
1464 else if (displayname
!= 0 && skip_args
> count_before
1465 && argv
[count_before
+ 1][1] == '-')
1466 argv
[count_before
+ 1] = "-d";
1468 /* Don't actually discard this arg. */
1469 skip_args
= count_before
;
1473 /* argmatch must not be used after here,
1474 except when bulding temacs
1475 because the -d argument has not been skipped in skip_args. */
1478 /* Call early 'cause init_environment needs it. */
1480 /* Set defaults for several environment variables. */
1482 init_environment (argc
, argv
, skip_args
);
1489 /* Initialize environment from registry settings. */
1490 init_environment (argv
);
1491 init_ntproc (); /* must precede init_editfns. */
1494 #if defined (MAC_OSX) && defined (HAVE_CARBON)
1496 init_mac_osx_environment ();
1499 /* egetenv is a pretty low-level facility, which may get called in
1500 many circumstances; it seems flimsy to put off initializing it
1501 until calling init_callproc. */
1502 set_process_environment ();
1503 /* AIX crashes are reported in system versions 3.2.3 and 3.2.4
1504 if this is not done. Do it after set_process_environment so that we
1505 don't pollute Vprocess_environment. */
1506 /* Setting LANG here will defeat the startup locale processing... */
1511 init_buffer (); /* Init default directory of main buffer. */
1513 init_callproc_1 (); /* Must precede init_cmdargs and init_sys_modes. */
1514 init_cmdargs (argc
, argv
, skip_args
); /* Must precede init_lread. */
1518 /* Erase any pre-dump messages in the message log, to avoid confusion. */
1519 Lisp_Object old_log_max
;
1520 old_log_max
= Vmessage_log_max
;
1521 XSETFASTINT (Vmessage_log_max
, 0);
1522 message_dolog ("", 0, 1, 0);
1523 Vmessage_log_max
= old_log_max
;
1526 init_callproc (); /* Must follow init_cmdargs but not init_sys_modes. */
1529 /* Intern the names of all standard functions and variables;
1530 define standard keys. */
1534 /* The basic levels of Lisp must come first. */
1535 /* And data must come first of all
1536 for the sake of symbols like error-message. */
1538 /* Called before init_window_once for Mac OS Classic. */
1546 syms_of_floatfns ();
1550 syms_of_bytecode ();
1552 syms_of_casefiddle ();
1554 syms_of_callproc ();
1555 syms_of_category ();
1557 /* Called before init_window_once for Mac OS Classic. */
1562 #ifndef NO_DIR_LIBRARY
1564 #endif /* not NO_DIR_LIBRARY */
1570 syms_of_coding (); /* This should be after syms_of_fileio. */
1571 #ifdef CLASH_DETECTION
1572 syms_of_filelock ();
1573 #endif /* CLASH_DETECTION */
1582 /* Called before init_window_once for Mac OS Classic. */
1593 /* Called before init_window_once for Mac OS Classic. */
1594 syms_of_textprop ();
1596 syms_of_composite ();
1602 #endif /* WINDOWSNT */
1605 #ifdef HAVE_WINDOW_SYSTEM
1608 #endif /* HAVE_WINDOW_SYSTEM */
1609 #ifdef HAVE_X_WINDOWS
1619 #endif /* HAVE_X_WINDOWS */
1623 /* Called before init_window_once for Mac OS Classic. */
1631 syms_of_w32select ();
1634 #endif /* HAVE_NTGUI */
1636 #if defined (MAC_OSX) && defined (HAVE_CARBON)
1640 syms_of_macselect ();
1642 #endif /* MAC_OSX && HAVE_CARBON */
1652 keys_of_casefiddle ();
1655 keys_of_keyboard ();
1662 /* Initialization that must be done even if the global variable
1663 initialized is non zero. */
1665 globals_of_w32fns ();
1666 globals_of_w32menu ();
1667 globals_of_w32select ();
1668 #endif /* HAVE_NTGUI */
1671 if (!noninteractive
)
1674 init_vms_input ();/* init_display calls get_frame_size, that needs this. */
1676 init_display (); /* Determine terminal type. init_sys_modes uses results. */
1679 /* Called before init_window_once for Mac OS Classic. */
1680 init_keyboard (); /* This too must precede init_sys_modes. */
1683 init_vmsproc (); /* And this too. */
1685 init_sys_modes (); /* Init system terminal modes (RAW or CBREAK, etc.). */
1688 #ifdef HAVE_WINDOW_SYSTEM
1691 #endif /* HAVE_WINDOW_SYSTEM */
1707 /* Handle -l loadup, args passed by Makefile. */
1708 if (argmatch (argv
, argc
, "-l", "--load", 3, &file
, &skip_args
))
1709 Vtop_level
= Fcons (intern ("load"),
1710 Fcons (build_string (file
), Qnil
));
1711 /* Unless next switch is -nl, load "loadup.el" first thing. */
1713 Vtop_level
= Fcons (intern ("load"),
1714 Fcons (build_string ("loadup.el"), Qnil
));
1721 /* If the execution TZ happens to be the same as the dump TZ,
1722 change it to some other value and then change it back,
1723 to force the underlying implementation to reload the TZ info.
1724 This is needed on implementations that load TZ info from files,
1725 since the TZ file contents may differ between dump and execution. */
1726 char *tz
= getenv ("TZ");
1727 if (tz
&& !strcmp (tz
, dump_tz
))
1737 /* Set up for profiling. This is known to work on FreeBSD,
1738 GNU/Linux and MinGW. It might work on some other systems too.
1739 Give it a try and tell us if it works on your system. To compile
1740 for profiling use something like:
1741 `make CFLAGS="-pg -g -O -DPROFILING=1'. */
1742 #if defined (__FreeBSD__) || defined (GNU_LINUX) || defined(__MINGW32__)
1746 extern void _mcleanup ();
1748 extern unsigned char etext
asm ("etext");
1752 extern void safe_bcopy ();
1753 extern void dump_opcode_frequencies ();
1756 /* This uses safe_bcopy because that function comes first in the
1757 Emacs executable. It might be better to use something that
1758 gives the start of the text segment, but start_of_text is not
1759 defined on all systems now. */
1760 monstartup (safe_bcopy
, &etext
);
1769 #ifdef LOCALTIME_CACHE
1770 /* Some versions of localtime have a bug. They cache the value of the time
1771 zone rather than looking it up every time. Since localtime() is
1772 called to bolt the undumping time into the undumped emacs, this
1773 results in localtime ignoring the TZ environment variable.
1774 This flushes the new TZ value into localtime. */
1776 #endif /* defined (LOCALTIME_CACHE) */
1778 /* Enter editor command loop. This never returns. */
1784 /* Sort the args so we can find the most important ones
1785 at the beginning of argv. */
1787 /* First, here's a table of all the standard options. */
1789 struct standard_args
1797 struct standard_args standard_args
[] =
1799 { "-version", "--version", 150, 0 },
1801 { "-nl", "--no-shared-memory", 140, 0 },
1804 { "-map", "--map-data", 130, 0 },
1806 { "-t", "--terminal", 120, 1 },
1807 { "-nw", "--no-window-system", 110, 0 },
1808 { "-nw", "--no-windows", 110, 0 },
1809 { "-batch", "--batch", 100, 0 },
1810 { "-script", "--script", 100, 1 },
1811 { "-help", "--help", 90, 0 },
1812 { "-no-unibyte", "--no-unibyte", 83, 0 },
1813 { "-multibyte", "--multibyte", 82, 0 },
1814 { "-unibyte", "--unibyte", 81, 0 },
1815 { "-no-multibyte", "--no-multibyte", 80, 0 },
1816 { "-nl", "--no-loadup", 70, 0 },
1817 /* -d must come last before the options handled in startup.el. */
1818 { "-d", "--display", 60, 1 },
1819 { "-display", 0, 60, 1 },
1820 /* Now for the options handled in startup.el. */
1821 { "-Q", "--quick", 55, 0 },
1822 { "-quick", 0, 55, 0 },
1823 { "-q", "--no-init-file", 50, 0 },
1824 { "-no-init-file", 0, 50, 0 },
1825 { "-no-site-file", "--no-site-file", 40, 0 },
1826 { "-no-splash", "--no-splash", 40, 0 },
1827 { "-u", "--user", 30, 1 },
1828 { "-user", 0, 30, 1 },
1829 { "-debug-init", "--debug-init", 20, 0 },
1830 { "-nbi", "--no-bitmap-icon", 15, 0 },
1831 { "-iconic", "--iconic", 15, 0 },
1832 { "-D", "--basic-display", 12, 0},
1833 { "-basic-display", 0, 12, 0},
1834 { "-bg", "--background-color", 10, 1 },
1835 { "-background", 0, 10, 1 },
1836 { "-fg", "--foreground-color", 10, 1 },
1837 { "-foreground", 0, 10, 1 },
1838 { "-bd", "--border-color", 10, 1 },
1839 { "-bw", "--border-width", 10, 1 },
1840 { "-ib", "--internal-border", 10, 1 },
1841 { "-ms", "--mouse-color", 10, 1 },
1842 { "-cr", "--cursor-color", 10, 1 },
1843 { "-nbc", "--no-blinking-cursor", 10, 0 },
1844 { "-fn", "--font", 10, 1 },
1845 { "-font", 0, 10, 1 },
1846 { "-fs", "--fullscreen", 10, 0 },
1847 { "-fw", "--fullwidth", 10, 0 },
1848 { "-fh", "--fullheight", 10, 0 },
1849 { "-g", "--geometry", 10, 1 },
1850 { "-geometry", 0, 10, 1 },
1851 { "-T", "--title", 10, 1 },
1852 { "-title", 0, 10, 1 },
1853 { "-name", "--name", 10, 1 },
1854 { "-xrm", "--xrm", 10, 1 },
1855 { "-r", "--reverse-video", 5, 0 },
1857 { "-reverse", 0, 5, 0 },
1858 { "-hb", "--horizontal-scroll-bars", 5, 0 },
1859 { "-vb", "--vertical-scroll-bars", 5, 0 },
1860 { "-color", "--color", 5, 0},
1861 /* These have the same priority as ordinary file name args,
1862 so they are not reordered with respect to those. */
1863 { "-L", "--directory", 0, 1 },
1864 { "-directory", 0, 0, 1 },
1865 { "-l", "--load", 0, 1 },
1866 { "-load", 0, 0, 1 },
1867 { "-scriptload", "--scriptload", 0, 1 },
1868 { "-f", "--funcall", 0, 1 },
1869 { "-funcall", 0, 0, 1 },
1870 { "-eval", "--eval", 0, 1 },
1871 { "-execute", "--execute", 0, 1 },
1872 { "-find-file", "--find-file", 0, 1 },
1873 { "-visit", "--visit", 0, 1 },
1874 { "-file", "--file", 0, 1 },
1875 { "-insert", "--insert", 0, 1 },
1876 /* This should be processed after ordinary file name args and the like. */
1877 { "-kill", "--kill", -10, 0 },
1880 /* Reorder the elements of ARGV (assumed to have ARGC elements)
1881 so that the highest priority ones come first.
1882 Do not change the order of elements of equal priority.
1883 If an option takes an argument, keep it and its argument together.
1885 If an option that takes no argument appears more
1886 than once, eliminate all but one copy of it. */
1889 sort_args (argc
, argv
)
1893 char **new = (char **) xmalloc (sizeof (char *) * argc
);
1894 /* For each element of argv,
1895 the corresponding element of options is:
1896 0 for an option that takes no arguments,
1897 1 for an option that takes one argument, etc.
1898 -1 for an ordinary non-option argument. */
1899 int *options
= (int *) xmalloc (sizeof (int) * argc
);
1900 int *priority
= (int *) xmalloc (sizeof (int) * argc
);
1902 int incoming_used
= 1;
1906 /* Categorize all the options,
1907 and figure out which argv elts are option arguments. */
1908 for (from
= 1; from
< argc
; from
++)
1912 if (argv
[from
][0] == '-')
1917 /* If we have found "--", don't consider
1918 any more arguments as options. */
1919 if (argv
[from
][1] == '-' && argv
[from
][2] == 0)
1921 /* Leave the "--", and everything following it, at the end. */
1922 for (; from
< argc
; from
++)
1924 priority
[from
] = -100;
1930 /* Look for a match with a known old-fashioned option. */
1931 for (i
= 0; i
< sizeof (standard_args
) / sizeof (standard_args
[0]); i
++)
1932 if (!strcmp (argv
[from
], standard_args
[i
].name
))
1934 options
[from
] = standard_args
[i
].nargs
;
1935 priority
[from
] = standard_args
[i
].priority
;
1936 if (from
+ standard_args
[i
].nargs
>= argc
)
1937 fatal ("Option `%s' requires an argument\n", argv
[from
]);
1938 from
+= standard_args
[i
].nargs
;
1942 /* Look for a match with a known long option.
1943 MATCH is -1 if no match so far, -2 if two or more matches so far,
1944 >= 0 (the table index of the match) if just one match so far. */
1945 if (argv
[from
][1] == '-')
1948 thislen
= strlen (argv
[from
]);
1949 equals
= index (argv
[from
], '=');
1951 thislen
= equals
- argv
[from
];
1954 i
< sizeof (standard_args
) / sizeof (standard_args
[0]); i
++)
1955 if (standard_args
[i
].longname
1956 && !strncmp (argv
[from
], standard_args
[i
].longname
,
1965 /* If we found exactly one match, use that. */
1968 options
[from
] = standard_args
[match
].nargs
;
1969 priority
[from
] = standard_args
[match
].priority
;
1970 /* If --OPTION=VALUE syntax is used,
1971 this option uses just one argv element. */
1974 if (from
+ options
[from
] >= argc
)
1975 fatal ("Option `%s' requires an argument\n", argv
[from
]);
1976 from
+= options
[from
];
1983 /* Copy the arguments, in order of decreasing priority, to NEW. */
1985 while (incoming_used
< argc
)
1988 int best_priority
= -9999;
1990 /* Find the highest priority remaining option.
1991 If several have equal priority, take the first of them. */
1992 for (from
= 1; from
< argc
; from
++)
1994 if (argv
[from
] != 0 && priority
[from
] > best_priority
)
1996 best_priority
= priority
[from
];
1999 /* Skip option arguments--they are tied to the options. */
2000 if (options
[from
] > 0)
2001 from
+= options
[from
];
2007 /* Copy the highest priority remaining option, with its args, to NEW.
2008 Unless it is a duplicate of the previous one. */
2009 if (! (options
[best
] == 0
2010 && ! strcmp (new[to
- 1], argv
[best
])))
2012 new[to
++] = argv
[best
];
2013 for (i
= 0; i
< options
[best
]; i
++)
2014 new[to
++] = argv
[best
+ i
+ 1];
2017 incoming_used
+= 1 + (options
[best
] > 0 ? options
[best
] : 0);
2019 /* Clear out this option in ARGV. */
2021 for (i
= 0; i
< options
[best
]; i
++)
2022 argv
[best
+ i
+ 1] = 0;
2025 /* If duplicate options were deleted, fill up extra space with null ptrs. */
2029 bcopy (new, argv
, sizeof (char *) * argc
);
2036 DEFUN ("kill-emacs", Fkill_emacs
, Skill_emacs
, 0, 1, "P",
2037 doc
: /* Exit the Emacs job and kill it.
2038 If ARG is an integer, return ARG as the exit program code.
2039 If ARG is a string, stuff it as keyboard input.
2041 The value of `kill-emacs-hook', if not void,
2042 is a list of functions (of no args),
2043 all of which are called before Emacs is actually killed. */)
2047 struct gcpro gcpro1
;
2054 if (!NILP (Vrun_hooks
) && !noninteractive
)
2055 call1 (Vrun_hooks
, intern ("kill-emacs-hook"));
2059 /* Is it really necessary to do this deassign
2060 when we are going to exit anyway? */
2065 shut_down_emacs (0, 0, STRINGP (arg
) ? arg
: Qnil
);
2067 /* If we have an auto-save list file,
2068 kill it because we are exiting Emacs deliberately (not crashing).
2069 Do it after shut_down_emacs, which does an auto-save. */
2070 if (STRINGP (Vauto_save_list_file_name
))
2071 unlink (SDATA (Vauto_save_list_file_name
));
2073 exit (INTEGERP (arg
) ? XINT (arg
) : EXIT_SUCCESS
);
2079 /* Perform an orderly shutdown of Emacs. Autosave any modified
2080 buffers, kill any child processes, clean up the terminal modes (if
2081 we're in the foreground), and other stuff like that. Don't perform
2082 any redisplay; this may be called when Emacs is shutting down in
2083 the background, or after its X connection has died.
2085 If SIG is a signal number, print a message for it.
2087 This is called by fatal signal handlers, X protocol error handlers,
2091 shut_down_emacs (sig
, no_x
, stuff
)
2095 /* Prevent running of hooks from now on. */
2098 /* Don't update display from now on. */
2099 Vinhibit_redisplay
= Qt
;
2101 /* If we are controlling the terminal, reset terminal modes. */
2102 #ifdef EMACS_HAVE_TTY_PGRP
2104 int pgrp
= EMACS_GETPGRP (0);
2107 if (EMACS_GET_TTY_PGRP (0, &tpgrp
) != -1
2112 if (sig
&& sig
!= SIGTERM
)
2113 fprintf (stderr
, "Fatal error (%d)", sig
);
2121 stuff_buffered_input (stuff
);
2124 inhibit_sentinels
= 1;
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 (Vwindow_system
)
2141 && SCHARS (SYMBOL_NAME (Vwindow_system
)) == 1
2142 && SREF (SYMBOL_NAME (Vwindow_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 /* GNU_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.
2461 `axp-vms' compiled for a (Open)VMS system.
2462 Anything else indicates some sort of Unix system. */);
2463 Vsystem_type
= intern (SYSTEM_TYPE
);
2465 DEFVAR_LISP ("system-configuration", &Vsystem_configuration
,
2466 doc
: /* Value is string indicating configuration Emacs was built for.
2467 On MS-Windows, the value reflects the OS flavor and version on which
2468 Emacs is running. */);
2469 Vsystem_configuration
= build_string (EMACS_CONFIGURATION
);
2471 DEFVAR_LISP ("system-configuration-options", &Vsystem_configuration_options
,
2472 doc
: /* String containing the configuration options Emacs was built with. */);
2473 Vsystem_configuration_options
= build_string (EMACS_CONFIG_OPTIONS
);
2475 DEFVAR_BOOL ("noninteractive", &noninteractive1
,
2476 doc
: /* Non-nil means Emacs is running without interactive terminal. */);
2478 DEFVAR_LISP ("kill-emacs-hook", &Vkill_emacs_hook
,
2479 doc
: /* Hook to be run when kill-emacs is called.
2480 Since `kill-emacs' may be invoked when the terminal is disconnected (or
2481 in other similar situations), functions placed on this hook should not
2482 expect to be able to interact with the user. To ask for confirmation,
2483 see `kill-emacs-query-functions' instead.
2485 The hook is not run in batch mode, i.e., if `noninteractive' is non-nil. */);
2486 Vkill_emacs_hook
= Qnil
;
2488 empty_string
= build_string ("");
2489 staticpro (&empty_string
);
2491 DEFVAR_INT ("emacs-priority", &emacs_priority
,
2492 doc
: /* Priority for Emacs to run at.
2493 This value is effective only if set before Emacs is dumped,
2494 and only if the Emacs executable is installed with setuid to permit
2495 it to change priority. (Emacs sets its uid back to the real uid.)
2496 Currently, you need to define SET_EMACS_PRIORITY in `config.h'
2497 before you compile Emacs, to enable the code for this feature. */);
2500 DEFVAR_LISP ("path-separator", &Vpath_separator
,
2501 doc
: /* The directory separator in search paths, as a string. */);
2504 Vpath_separator
= make_string (&c
, 1);
2507 DEFVAR_LISP ("invocation-name", &Vinvocation_name
,
2508 doc
: /* The program name that was used to run Emacs.
2509 Any directory names are omitted. */);
2511 DEFVAR_LISP ("invocation-directory", &Vinvocation_directory
,
2512 doc
: /* The directory in which the Emacs executable was found, to run it.
2513 The value is nil if that directory's name is not known. */);
2515 DEFVAR_LISP ("installation-directory", &Vinstallation_directory
,
2516 doc
: /* A directory within which to look for the `lib-src' and `etc' directories.
2517 This is non-nil when we can't find those directories in their standard
2518 installed locations, but we can find them
2519 near where the Emacs executable was found. */);
2520 Vinstallation_directory
= Qnil
;
2522 DEFVAR_LISP ("system-messages-locale", &Vsystem_messages_locale
,
2523 doc
: /* System locale for messages. */);
2524 Vsystem_messages_locale
= Qnil
;
2526 DEFVAR_LISP ("previous-system-messages-locale",
2527 &Vprevious_system_messages_locale
,
2528 doc
: /* Most recently used system locale for messages. */);
2529 Vprevious_system_messages_locale
= Qnil
;
2531 DEFVAR_LISP ("system-time-locale", &Vsystem_time_locale
,
2532 doc
: /* System locale for time. */);
2533 Vsystem_time_locale
= Qnil
;
2535 DEFVAR_LISP ("previous-system-time-locale", &Vprevious_system_time_locale
,
2536 doc
: /* Most recently used system locale for time. */);
2537 Vprevious_system_time_locale
= Qnil
;
2540 /* arch-tag: 7bfd356a-c720-4612-8ab6-aa4222931c2e
2541 (do not change this comment) */