1 /* Fully extensible Emacs, running on Unix, intended for GNU.
2 Copyright (C) 1985, 1986, 1987, 1993, 1994, 1995, 1997, 1998, 1999,
3 2001, 2002, 2003, 2004, 2005, 2006, 2007 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 3, 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 /* Empty lisp strings. To avoid having to build any others. */
137 Lisp_Object empty_unibyte_string
, empty_multibyte_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 go to line LINE in next FILE\n\
284 +LINE:COLUMN go to line LINE, column COLUMN, in next FILE\n\
285 --directory, -L DIR add DIR to variable load-path\n\
286 --eval EXPR evaluate Emacs Lisp expression EXPR\n\
287 --execute EXPR evaluate Emacs Lisp expression EXPR\n\
288 --file FILE visit FILE using find-file\n\
289 --find-file FILE visit FILE using find-file\n\
290 --funcall, -f FUNC call Emacs Lisp function FUNC with no arguments\n\
291 --insert FILE insert contents of FILE into current buffer\n\
292 --kill exit without asking for confirmation\n\
293 --load, -l FILE load Emacs Lisp FILE using the load function\n\
294 --visit FILE visit FILE using find-file\n\
300 --background-color, -bg COLOR window background color\n\
301 --basic-display, -D disable many display features;\n\
302 used for debugging Emacs\n\
303 --border-color, -bd COLOR main border color\n\
304 --border-width, -bw WIDTH width of main border\n\
305 --color, --color=MODE override color mode for character terminals;\n\
306 MODE defaults to `auto', and can also\n\
307 be `never', `auto', `always',\n\
308 or a mode name like `ansi8'\n\
309 --cursor-color, -cr COLOR color of the Emacs cursor indicating point\n\
310 --font, -fn FONT default font; must be fixed-width\n\
311 --foreground-color, -fg COLOR window foreground color\n\
312 --fullheight, -fh make the first frame high as the screen\n\
313 --fullscreen, -fs make first frame fullscreen\n\
314 --fullwidth, -fw make the first frame wide as the screen\n\
315 --geometry, -g GEOMETRY window geometry\n\
316 --no-bitmap-icon, -nbi do not use picture of gnu for Emacs icon\n\
317 --iconic start Emacs in iconified state\n\
318 --internal-border, -ib WIDTH width between text and main border\n\
319 --line-spacing, -lsp PIXELS additional space to put between lines\n\
320 --mouse-color, -ms COLOR mouse cursor color in Emacs window\n\
321 --name NAME title for initial Emacs frame\n\
322 --no-blinking-cursor, -nbc disable blinking cursor\n\
323 --reverse-video, -r, -rv switch foreground and background\n\
324 --title, -T TITLE title for initial Emacs frame\n\
325 --vertical-scroll-bars, -vb enable vertical scroll bars\n\
326 --xrm XRESOURCES set additional X resources\n\
327 --help display this help and exit\n\
328 --version output version information and exit\n\
332 You can generally also specify long option names with a single -; for\n\
333 example, -batch as well as --batch. You can use any unambiguous\n\
334 abbreviation for a --option.\n\
336 Various environment variables and window system resources also affect\n\
337 Emacs' operation. See the main documentation.\n\
339 Report bugs to %s. First, please see the Bugs\n\
340 section of the Emacs manual or the file BUGS.\n"
343 /* Signal code for the fatal signal that was received. */
344 int fatal_error_code
;
346 /* Nonzero if handling a fatal error already. */
347 int fatal_error_in_progress
;
349 /* If non-null, call this function from fatal_error_signal before
350 committing suicide. */
352 void (*fatal_error_signal_hook
) P_ ((void));
354 #ifdef HAVE_GTK_AND_PTHREAD
355 /* When compiled with GTK and running under Gnome, multiple threads meay be
356 created. Keep track of our main thread to make sure signals are delivered
357 to it (see syssignal.h). */
359 pthread_t main_thread
;
363 /* Handle bus errors, invalid instruction, etc. */
365 fatal_error_signal (sig
)
368 SIGNAL_THREAD_CHECK (sig
);
369 fatal_error_code
= sig
;
370 signal (sig
, SIG_DFL
);
372 TOTALLY_UNBLOCK_INPUT
;
374 /* If fatal error occurs in code below, avoid infinite recursion. */
375 if (! fatal_error_in_progress
)
377 fatal_error_in_progress
= 1;
379 shut_down_emacs (sig
, 0, Qnil
);
383 LIB$
STOP (SS$_ABORT
);
385 /* Signal the same code; this time it will really be fatal.
386 Remember that since we're in a signal handler, the signal we're
387 going to send is probably blocked, so we have to unblock it if we
388 want to really receive it. */
390 sigunblock (sigmask (fatal_error_code
));
393 if (fatal_error_signal_hook
)
394 fatal_error_signal_hook ();
396 kill (getpid (), fatal_error_code
);
402 /* Handler for SIGDANGER. */
404 memory_warning_signal (sig
)
407 signal (sig
, memory_warning_signal
);
408 SIGNAL_THREAD_CHECK (sig
);
410 malloc_warning ("Operating system warns that virtual memory is running low.\n");
412 /* It might be unsafe to call do_auto_save now. */
413 force_auto_save_soon ();
417 /* We define abort, rather than using it from the library,
418 so that GDB can return from a breakpoint here.
419 MSDOS has its own definition in msdos.c. */
421 #if ! defined (DOS_NT) && ! defined (NO_ABORT)
423 #ifndef ABORT_RETURN_TYPE
424 #define ABORT_RETURN_TYPE void
430 kill (getpid (), SIGABRT
);
431 /* This shouldn't be executed, but it prevents a warning. */
437 /* Code for dealing with Lisp access to the Unix command line. */
440 init_cmdargs (argc
, argv
, skip_args
)
446 Lisp_Object name
, dir
, tem
;
447 int count
= SPECPDL_INDEX ();
448 Lisp_Object raw_name
;
453 raw_name
= build_string (argv
[0]);
455 /* Add /: to the front of the name
456 if it would otherwise be treated as magic. */
457 tem
= Ffind_file_name_handler (raw_name
, Qt
);
459 raw_name
= concat2 (build_string ("/:"), raw_name
);
461 Vinvocation_name
= Ffile_name_nondirectory (raw_name
);
462 Vinvocation_directory
= Ffile_name_directory (raw_name
);
464 /* If we got no directory in argv[0], search PATH to find where
465 Emacs actually came from. */
466 if (NILP (Vinvocation_directory
))
469 int yes
= openp (Vexec_path
, Vinvocation_name
,
470 Vexec_suffixes
, &found
, make_number (X_OK
));
473 /* Add /: to the front of the name
474 if it would otherwise be treated as magic. */
475 tem
= Ffind_file_name_handler (found
, Qt
);
477 found
= concat2 (build_string ("/:"), found
);
478 Vinvocation_directory
= Ffile_name_directory (found
);
482 if (!NILP (Vinvocation_directory
)
483 && NILP (Ffile_name_absolute_p (Vinvocation_directory
)))
484 /* Emacs was started with relative path, like ./emacs.
486 Vinvocation_directory
= Fexpand_file_name (Vinvocation_directory
, Qnil
);
488 Vinstallation_directory
= Qnil
;
490 if (!NILP (Vinvocation_directory
))
492 dir
= Vinvocation_directory
;
493 name
= Fexpand_file_name (Vinvocation_name
, dir
);
496 Lisp_Object tem
, lib_src_exists
;
497 Lisp_Object etc_exists
, info_exists
;
499 /* See if dir contains subdirs for use by Emacs.
500 Check for the ones that would exist in a build directory,
501 not including lisp and info. */
502 tem
= Fexpand_file_name (build_string ("lib-src"), dir
);
503 lib_src_exists
= Ffile_exists_p (tem
);
506 /* MSDOS installations frequently remove lib-src, but we still
507 must set installation-directory, or else info won't find
508 its files (it uses the value of installation-directory). */
509 tem
= Fexpand_file_name (build_string ("info"), dir
);
510 info_exists
= Ffile_exists_p (tem
);
515 if (!NILP (lib_src_exists
) || !NILP (info_exists
))
517 tem
= Fexpand_file_name (build_string ("etc"), dir
);
518 etc_exists
= Ffile_exists_p (tem
);
519 if (!NILP (etc_exists
))
521 Vinstallation_directory
522 = Ffile_name_as_directory (dir
);
527 /* See if dir's parent contains those subdirs. */
528 tem
= Fexpand_file_name (build_string ("../lib-src"), dir
);
529 lib_src_exists
= Ffile_exists_p (tem
);
533 /* See the MSDOS commentary above. */
534 tem
= Fexpand_file_name (build_string ("../info"), dir
);
535 info_exists
= Ffile_exists_p (tem
);
540 if (!NILP (lib_src_exists
) || !NILP (info_exists
))
542 tem
= Fexpand_file_name (build_string ("../etc"), dir
);
543 etc_exists
= Ffile_exists_p (tem
);
544 if (!NILP (etc_exists
))
546 tem
= Fexpand_file_name (build_string (".."), dir
);
547 Vinstallation_directory
548 = Ffile_name_as_directory (tem
);
553 /* If the Emacs executable is actually a link,
554 next try the dir that the link points into. */
555 tem
= Ffile_symlink_p (name
);
558 name
= Fexpand_file_name (tem
, dir
);
559 dir
= Ffile_name_directory (name
);
566 Vcommand_line_args
= Qnil
;
568 for (i
= argc
- 1; i
>= 0; i
--)
570 if (i
== 0 || i
> skip_args
)
571 /* For the moment, we keep arguments as is in unibyte strings.
572 They are decoded in the function command-line after we know
573 locale-coding-system. */
575 = Fcons (make_unibyte_string (argv
[i
], strlen (argv
[i
])),
579 unbind_to (count
, Qnil
);
582 DEFUN ("invocation-name", Finvocation_name
, Sinvocation_name
, 0, 0, 0,
583 doc
: /* Return the program name that was used to run Emacs.
584 Any directory names are omitted. */)
587 return Fcopy_sequence (Vinvocation_name
);
590 DEFUN ("invocation-directory", Finvocation_directory
, Sinvocation_directory
,
592 doc
: /* Return the directory name in which the Emacs executable was located. */)
595 return Fcopy_sequence (Vinvocation_directory
);
600 #ifdef LINK_CRTL_SHARE
601 #ifdef SHARABLE_LIB_BUG
602 extern noshare
char **environ
;
603 #endif /* SHARABLE_LIB_BUG */
604 #endif /* LINK_CRTL_SHARE */
608 /* A valid but unlikely value for the TZ environment value.
609 It is OK (though a bit slower) if the user actually chooses this value. */
610 static char dump_tz
[] = "UtC0";
613 #ifndef ORDINARY_LINK
614 /* We don't include crtbegin.o and crtend.o in the link,
615 so these functions and variables might be missed.
616 Provide dummy definitions to avoid error.
617 (We don't have any real constructors or destructors.) */
619 #ifndef GCC_CTORS_IN_LIBC
620 void __do_global_ctors ()
622 void __do_global_ctors_aux ()
624 void __do_global_dtors ()
626 /* GNU/Linux has a bug in its library; avoid an error. */
628 char * __CTOR_LIST__
[2] = { (char *) (-1), 0 };
630 char * __DTOR_LIST__
[2] = { (char *) (-1), 0 };
631 #endif /* GCC_CTORS_IN_LIBC */
634 #endif /* __GNUC__ */
635 #endif /* ORDINARY_LINK */
637 /* Test whether the next argument in ARGV matches SSTR or a prefix of
638 LSTR (at least MINLEN characters). If so, then if VALPTR is non-null
639 (the argument is supposed to have a value) store in *VALPTR either
640 the next argument or the portion of this one after the equal sign.
641 ARGV is read starting at position *SKIPPTR; this index is advanced
642 by the number of arguments used.
644 Too bad we can't just use getopt for all of this, but we don't have
645 enough information to do it right. */
648 argmatch (argv
, argc
, sstr
, lstr
, minlen
, valptr
, skipptr
)
661 /* Don't access argv[argc]; give up in advance. */
662 if (argc
<= *skipptr
+ 1)
665 arg
= argv
[*skipptr
+1];
668 if (strcmp (arg
, sstr
) == 0)
672 *valptr
= argv
[*skipptr
+2];
679 arglen
= (valptr
!= NULL
&& (p
= index (arg
, '=')) != NULL
680 ? p
- arg
: strlen (arg
));
681 if (lstr
== 0 || arglen
< minlen
|| strncmp (arg
, lstr
, arglen
) != 0)
683 else if (valptr
== NULL
)
694 else if (argv
[*skipptr
+2] != NULL
)
696 *valptr
= argv
[*skipptr
+2];
706 #ifdef DOUG_LEA_MALLOC
708 /* malloc can be invoked even before main (e.g. by the dynamic
709 linker), so the dumped malloc state must be restored as early as
710 possible using this special hook. */
713 malloc_initialize_hook ()
716 extern char **environ
;
721 if (!malloc_using_checking
)
722 /* Work around a bug in glibc's malloc. MALLOC_CHECK_ must be
723 ignored if the heap to be restored was constructed without
724 malloc checking. Can't use unsetenv, since that calls malloc. */
728 for (p
= environ
; p
&& *p
; p
++)
729 if (strncmp (*p
, "MALLOC_CHECK_=", 14) == 0)
738 malloc_set_state (malloc_state_ptr
);
739 #ifndef XMALLOC_OVERRUN_CHECK
740 free (malloc_state_ptr
);
745 if (my_heap_start
== 0)
746 my_heap_start
= sbrk (0);
747 malloc_using_checking
= getenv ("MALLOC_CHECK_") != NULL
;
751 void (*__malloc_initialize_hook
) () = malloc_initialize_hook
;
753 #endif /* DOUG_LEA_MALLOC */
756 #define REPORT_EMACS_BUG_ADDRESS "bug-gnu-emacs@gnu.org"
757 #define REPORT_EMACS_BUG_PRETEST_ADDRESS "emacs-pretest-bug@gnu.org"
759 /* This function is used to determine an address to which bug report should
763 bug_reporting_address ()
769 temp
= Fsymbol_value (intern ("emacs-version"));
771 /* When `emacs-version' is invalid, use normal address. */
773 return REPORT_EMACS_BUG_ADDRESS
;
775 string
= SDATA (temp
);
777 /* Count dots in `emacs-version'. */
785 /* When `emacs-version' has at least three dots, it is development or
786 pretest version of Emacs. */
787 return count
>= 3 ? REPORT_EMACS_BUG_PRETEST_ADDRESS
: REPORT_EMACS_BUG_ADDRESS
;
790 #ifdef USE_FONT_BACKEND
791 extern int enable_font_backend
;
792 #endif /* USE_FONT_BACKEND */
810 char stack_bottom_variable
;
811 int do_initial_setlocale
;
816 #ifdef HAVE_SETRLIMIT
823 extern Lisp_Object
*stack_base
;
829 extern char my_endbss
[];
830 extern char *my_endbss_static
;
832 if (my_heap_start
== 0)
833 my_heap_start
= sbrk (0);
835 heap_bss_diff
= (char *)my_heap_start
- max (my_endbss
, my_endbss_static
);
838 #ifdef LINUX_SBRK_BUG
842 #ifdef RUN_TIME_REMAP
844 run_time_remap (argv
[0]);
849 unexec_init_emacs_zone ();
852 sort_args (argc
, argv
);
854 while (argv
[argc
]) argc
++;
856 if (argmatch (argv
, argc
, "-version", "--version", 3, NULL
, &skip_args
)
857 /* We don't know the version number unless this is a dumped Emacs.
858 So ignore --version otherwise. */
861 Lisp_Object tem
, tem2
;
862 tem
= Fsymbol_value (intern ("emacs-version"));
863 tem2
= Fsymbol_value (intern ("emacs-copyright"));
866 fprintf (stderr
, "Invalid value of `emacs-version'\n");
871 fprintf (stderr
, "Invalid value of `emacs-copyright'\n");
876 printf ("GNU Emacs %s\n", SDATA (tem
));
877 printf ("%s\n", SDATA(tem2
));
878 printf ("GNU Emacs comes with ABSOLUTELY NO WARRANTY.\n");
879 printf ("You may redistribute copies of Emacs\n");
880 printf ("under the terms of the GNU General Public License.\n");
881 printf ("For more information about these matters, ");
882 printf ("see the file named COPYING.\n");
887 #ifdef HAVE_PERSONALITY_LINUX32
888 /* See if there is a gap between the end of BSS and the heap.
889 In that case, set personality and exec ourself again. */
891 && (strcmp (argv
[argc
-1], "dump") == 0
892 || strcmp (argv
[argc
-1], "bootstrap") == 0)
893 && heap_bss_diff
> MAX_HEAP_BSS_DIFF
)
895 if (! getenv ("EMACS_HEAP_EXEC"))
897 /* Set this so we only do this once. */
898 putenv("EMACS_HEAP_EXEC=true");
900 /* A flag to turn off address randomization which is introduced
901 in linux kernel shipped with fedora core 4 */
902 #define ADD_NO_RANDOMIZE 0x0040000
903 personality (PER_LINUX32
| ADD_NO_RANDOMIZE
);
904 #undef ADD_NO_RANDOMIZE
906 execvp (argv
[0], argv
);
908 /* If the exec fails, try to dump anyway. */
912 #endif /* HAVE_PERSONALITY_LINUX32 */
915 /* Map in shared memory, if we are using that. */
917 if (argmatch (argv
, argc
, "-nl", "--no-shared-memory", 6, NULL
, &skip_args
))
920 /* The shared memory was just restored, which clobbered this. */
926 /* The shared memory was just restored, which clobbered this. */
933 extern int malloc_cookie
;
934 /* This helps out unexnext.c. */
936 if (malloc_jumpstart (malloc_cookie
) != 0)
937 printf ("malloc jumpstart failed!\n");
942 /* Skip process serial number passed in the form -psn_x_y as
943 command-line argument. The WindowServer adds this option when
944 Emacs is invoked from the Finder or by the `open' command. In
945 these cases, the working directory becomes `/', so we change it
946 to the user's home directory. */
947 if (argc
> skip_args
+ 1 && strncmp (argv
[skip_args
+1], "-psn_", 5) == 0)
949 chdir (getenv ("HOME"));
955 /* If -map specified, map the data file in. */
958 if (argmatch (argv
, argc
, "-map", "--map-data", 3, &file
, &skip_args
))
962 #ifdef LINK_CRTL_SHARE
963 #ifdef SHARABLE_LIB_BUG
964 /* Bletcherous shared libraries! */
966 stdin
= fdopen (0, "r");
968 stdout
= fdopen (1, "w");
970 stderr
= fdopen (2, "w");
973 #endif /* SHARABLE_LIB_BUG */
974 #endif /* LINK_CRTL_SHARE */
977 #if defined (HAVE_SETRLIMIT) && defined (RLIMIT_STACK)
978 /* Extend the stack space available.
979 Don't do that if dumping, since some systems (e.g. DJGPP)
980 might define a smaller stack limit at that time. */
983 && (!noninteractive
|| initialized
)
985 && !getrlimit (RLIMIT_STACK
, &rlim
))
988 extern size_t re_max_failures
;
989 /* Approximate the amount regex.c needs per unit of re_max_failures. */
990 int ratio
= 20 * sizeof (char *);
991 /* Then add 33% to cover the size of the smaller stacks that regex.c
992 successively allocates and discards, on its way to the maximum. */
994 /* Add in some extra to cover
995 what we're likely to use for other reasons. */
996 newlim
= re_max_failures
* ratio
+ 200000;
998 /* NetBSD (at least NetBSD 1.2G and former) has a bug in its
999 stack allocation routine for new process that the allocation
1000 fails if stack limit is not on page boundary. So, round up the
1001 new limit to page boundary. */
1002 newlim
= (newlim
+ getpagesize () - 1) / getpagesize () * getpagesize();
1004 if (newlim
> rlim
.rlim_max
)
1006 newlim
= rlim
.rlim_max
;
1007 /* Don't let regex.c overflow the stack we have. */
1008 re_max_failures
= (newlim
- 200000) / ratio
;
1010 if (rlim
.rlim_cur
< newlim
)
1011 rlim
.rlim_cur
= newlim
;
1013 setrlimit (RLIMIT_STACK
, &rlim
);
1015 #endif /* HAVE_SETRLIMIT and RLIMIT_STACK */
1017 /* Record (approximately) where the stack begins. */
1018 stack_bottom
= &stack_bottom_variable
;
1020 #ifdef USG_SHARED_LIBRARIES
1022 brk ((void *)bss_end
);
1027 #ifndef SYSTEM_MALLOC
1028 /* Arrange to get warning messages as memory fills up. */
1029 memory_warnings (0, malloc_warning
);
1031 /* Call malloc at least once, to run the initial __malloc_hook.
1032 Also call realloc and free for consistency. */
1033 free (realloc (malloc (4), 4));
1036 /* Arrange to disable interrupt input inside malloc etc. */
1037 uninterrupt_malloc ();
1038 # endif /* not SYNC_INPUT */
1039 #endif /* not SYSTEM_MALLOC */
1041 #ifdef HAVE_GTK_AND_PTHREAD
1042 main_thread
= pthread_self ();
1043 #endif /* HAVE_GTK_AND_PTHREAD */
1045 #if defined (MSDOS) || defined (WINDOWSNT)
1046 /* We do all file input/output as binary files. When we need to translate
1047 newlines, we do that manually. */
1049 #endif /* MSDOS || WINDOWSNT */
1053 if (!isatty (fileno (stdin
)))
1054 setmode (fileno (stdin
), O_BINARY
);
1055 if (!isatty (fileno (stdout
)))
1058 setmode (fileno (stdout
), O_BINARY
);
1060 #else /* not __DJGPP__ >= 2 */
1061 (stdin
)->_flag
&= ~_IOTEXT
;
1062 (stdout
)->_flag
&= ~_IOTEXT
;
1063 (stderr
)->_flag
&= ~_IOTEXT
;
1064 #endif /* not __DJGPP__ >= 2 */
1067 #ifdef SET_EMACS_PRIORITY
1069 nice (emacs_priority
);
1071 #endif /* SET_EMACS_PRIORITY */
1073 /* Skip initial setlocale if LC_ALL is "C", as it's not needed in that case.
1074 The build procedure uses this while dumping, to ensure that the
1075 dumped Emacs does not have its system locale tables initialized,
1076 as that might cause screwups when the dumped Emacs starts up. */
1078 char *lc_all
= getenv ("LC_ALL");
1079 do_initial_setlocale
= ! lc_all
|| strcmp (lc_all
, "C");
1082 /* Set locale now, so that initial error messages are localized properly.
1083 fixup_locale must wait until later, since it builds strings. */
1084 if (do_initial_setlocale
)
1085 setlocale (LC_ALL
, "");
1087 #ifdef EXTRA_INITIALIZE
1091 inhibit_window_system
= 0;
1093 /* Handle the -t switch, which specifies filename to use as terminal. */
1097 if (argmatch (argv
, argc
, "-t", "--terminal", 4, &term
, &skip_args
))
1102 result
= emacs_open (term
, O_RDWR
, 0);
1105 char *errstring
= strerror (errno
);
1106 fprintf (stderr
, "%s: %s: %s\n", argv
[0], term
, errstring
);
1112 fprintf (stderr
, "%s: %s: not a tty\n", argv
[0], term
);
1115 fprintf (stderr
, "Using %s\n", term
);
1116 #ifdef HAVE_WINDOW_SYSTEM
1117 inhibit_window_system
= 1; /* -t => -nw */
1124 /* Command line option --no-windows is deprecated and thus not mentioned
1125 in the manual and usage informations. */
1126 if (argmatch (argv
, argc
, "-nw", "--no-window-system", 6, NULL
, &skip_args
)
1127 || argmatch (argv
, argc
, "-nw", "--no-windows", 6, NULL
, &skip_args
))
1128 inhibit_window_system
= 1;
1130 /* Handle the -batch switch, which means don't do interactive display. */
1132 if (argmatch (argv
, argc
, "-batch", "--batch", 5, NULL
, &skip_args
))
1135 Vundo_outer_limit
= Qnil
;
1137 if (argmatch (argv
, argc
, "-script", "--script", 3, &junk
, &skip_args
))
1139 noninteractive
= 1; /* Set batch mode. */
1140 /* Convert --script to --scriptload, un-skip it, and sort again
1141 so that it will be handled in proper sequence. */
1142 argv
[skip_args
- 1] = "-scriptload";
1144 sort_args (argc
, argv
);
1147 /* Handle the --help option, which gives a usage message. */
1148 if (argmatch (argv
, argc
, "-help", "--help", 3, NULL
, &skip_args
))
1150 printf (USAGE1
, argv
[0], USAGE2
);
1152 printf (USAGE4
, bug_reporting_address ());
1156 if (! noninteractive
)
1161 inherited_pgroup
= EMACS_GETPGRP (0);
1162 setpgrp (0, getpid ());
1165 #if defined (USG5) && defined (INTERRUPT_INPUT)
1169 #if defined (HAVE_GTK_AND_PTHREAD) && !defined (SYSTEM_MALLOC) && !defined (DOUG_LEA_MALLOC)
1171 extern void malloc_enable_thread
P_ ((void));
1173 malloc_enable_thread ();
1180 /* Don't catch SIGHUP if dumping. */
1187 sigblock (sigmask (SIGHUP
));
1188 /* In --batch mode, don't catch SIGHUP if already ignored.
1189 That makes nohup work. */
1190 if (! noninteractive
1191 || signal (SIGHUP
, SIG_IGN
) != SIG_IGN
)
1192 signal (SIGHUP
, fatal_error_signal
);
1193 sigunblock (sigmask (SIGHUP
));
1198 ! noninteractive
|| initialized
1204 /* Don't catch these signals in batch mode if dumping.
1205 On some machines, this sets static data that would make
1206 signal fail to work right when the dumped Emacs is run. */
1207 signal (SIGQUIT
, fatal_error_signal
);
1208 signal (SIGILL
, fatal_error_signal
);
1209 signal (SIGTRAP
, fatal_error_signal
);
1211 add_user_signal (SIGUSR1
, "sigusr1");
1214 add_user_signal (SIGUSR2
, "sigusr2");
1217 signal (SIGABRT
, fatal_error_signal
);
1220 signal (SIGHWE
, fatal_error_signal
);
1223 signal (SIGPRE
, fatal_error_signal
);
1226 signal (SIGORE
, fatal_error_signal
);
1229 signal (SIGUME
, fatal_error_signal
);
1232 signal (SIGDLK
, fatal_error_signal
);
1235 signal (SIGCPULIM
, fatal_error_signal
);
1238 /* This is missing on some systems - OS/2, for example. */
1239 signal (SIGIOT
, fatal_error_signal
);
1242 signal (SIGEMT
, fatal_error_signal
);
1244 signal (SIGFPE
, fatal_error_signal
);
1246 signal (SIGBUS
, fatal_error_signal
);
1248 signal (SIGSEGV
, fatal_error_signal
);
1250 signal (SIGSYS
, fatal_error_signal
);
1252 signal (SIGTERM
, fatal_error_signal
);
1254 signal (SIGXCPU
, fatal_error_signal
);
1257 signal (SIGXFSZ
, fatal_error_signal
);
1258 #endif /* SIGXFSZ */
1261 /* This just means available memory is getting low. */
1262 signal (SIGDANGER
, memory_warning_signal
);
1266 /* 20 is SIGCHLD, 21 is SIGTTIN, 22 is SIGTTOU. */
1267 signal (SIGXCPU
, fatal_error_signal
);
1269 signal (SIGIOINT
, fatal_error_signal
);
1271 signal (SIGGRANT
, fatal_error_signal
);
1272 signal (SIGRETRACT
, fatal_error_signal
);
1273 signal (SIGSOUND
, fatal_error_signal
);
1274 signal (SIGMSG
, fatal_error_signal
);
1278 noninteractive1
= noninteractive
;
1280 /* Perform basic initializations (not merely interning symbols). */
1287 init_character_once ();
1288 init_charset_once ();
1289 init_coding_once ();
1290 init_syntax_once (); /* Create standard syntax table. */
1291 init_category_once (); /* Create standard category table. */
1292 /* Must be done before init_buffer. */
1293 init_casetab_once ();
1294 init_buffer_once (); /* Create buffer table and some buffers. */
1295 init_minibuf_once (); /* Create list of minibuffers. */
1296 /* Must precede init_window_once. */
1298 /* Call syms_of_xfaces before init_window_once because that
1299 function creates Vterminal_frame. Termcap frames now use
1300 faces, and the face implementation uses some symbols as
1303 /* Call syms_of_keyboard before init_window_once because
1304 keyboard sets up symbols that include some face names that
1305 the X support will want to use. This can happen when
1306 CANNOT_DUMP is defined. */
1307 syms_of_keyboard ();
1310 /* init_window_once calls make_terminal_frame which on Mac OS
1311 creates a full-fledge output_mac type frame. This does not
1312 work correctly before syms_of_textprop, syms_of_macfns,
1313 syms_of_ccl, syms_of_fontset, syms_of_xterm, syms_of_search,
1314 syms_of_frame, mac_term_init, and init_keyboard have already
1316 syms_of_textprop ();
1322 syms_of_macselect ();
1328 mac_term_init (build_string ("Mac"), NULL
, NULL
);
1332 init_window_once (); /* Init the window system. */
1333 init_fileio_once (); /* Must precede any path manipulation. */
1334 #ifdef HAVE_WINDOW_SYSTEM
1335 init_fringe_once (); /* Swap bitmaps if necessary. */
1336 #endif /* HAVE_WINDOW_SYSTEM */
1341 if (do_initial_setlocale
)
1344 Vsystem_messages_locale
= Vprevious_system_messages_locale
;
1345 Vsystem_time_locale
= Vprevious_system_time_locale
;
1350 #ifdef CLASH_DETECTION
1356 running_asynch_code
= 0;
1358 /* Handle --unibyte and the EMACS_UNIBYTE envvar,
1359 but not while dumping. */
1362 int inhibit_unibyte
= 0;
1364 /* --multibyte overrides EMACS_UNIBYTE. */
1365 if (argmatch (argv
, argc
, "-no-unibyte", "--no-unibyte", 4, NULL
, &skip_args
)
1366 || argmatch (argv
, argc
, "-multibyte", "--multibyte", 4, NULL
, &skip_args
)
1367 /* Ignore EMACS_UNIBYTE before dumping. */
1368 || (!initialized
&& noninteractive
))
1369 inhibit_unibyte
= 1;
1371 /* --unibyte requests that we set up to do everything with single-byte
1372 buffers and strings. We need to handle this before calling
1373 init_lread, init_editfns and other places that generate Lisp strings
1374 from text in the environment. */
1375 /* Actually this shouldn't be needed as of 20.4 in a generally
1376 unibyte environment. As handa says, environment values
1377 aren't now decoded; also existing buffers are now made
1378 unibyte during startup if .emacs sets unibyte. Tested with
1379 8-bit data in environment variables and /etc/passwd, setting
1380 unibyte and Latin-1 in .emacs. -- Dave Love */
1381 if (argmatch (argv
, argc
, "-unibyte", "--unibyte", 4, NULL
, &skip_args
)
1382 || argmatch (argv
, argc
, "-no-multibyte", "--no-multibyte", 4, NULL
, &skip_args
)
1383 || (getenv ("EMACS_UNIBYTE") && !inhibit_unibyte
))
1385 Lisp_Object old_log_max
;
1386 Lisp_Object symbol
, tail
;
1388 symbol
= intern ("default-enable-multibyte-characters");
1389 Fset (symbol
, Qnil
);
1393 /* Erase pre-dump messages in *Messages* now so no abort. */
1394 old_log_max
= Vmessage_log_max
;
1395 XSETFASTINT (Vmessage_log_max
, 0);
1396 message_dolog ("", 0, 1, 0);
1397 Vmessage_log_max
= old_log_max
;
1400 for (tail
= Vbuffer_alist
; CONSP (tail
);
1405 buffer
= Fcdr (XCAR (tail
));
1406 /* Make a multibyte buffer unibyte. */
1407 if (BUF_Z_BYTE (XBUFFER (buffer
)) > BUF_Z (XBUFFER (buffer
)))
1409 struct buffer
*current
= current_buffer
;
1411 set_buffer_temp (XBUFFER (buffer
));
1412 Fset_buffer_multibyte (Qnil
);
1413 set_buffer_temp (current
);
1420 = argmatch (argv
, argc
, "-nl", "--no-loadup", 6, NULL
, &skip_args
);
1422 #ifdef USE_FONT_BACKEND
1423 enable_font_backend
= 1;
1424 if (argmatch (argv
, argc
, "-enable-font-backend", "--enable-font-backend",
1425 4, NULL
, &skip_args
))
1426 enable_font_backend
= 1;
1427 else if (argmatch (argv
, argc
,
1428 "-disable-font-backend", "--disable-font-backend",
1429 4, NULL
, &skip_args
))
1430 enable_font_backend
= 0;
1431 #endif /* USE_FONT_BACKEND */
1433 #ifdef HAVE_X_WINDOWS
1434 /* Stupid kludge to catch command-line display spec. We can't
1435 handle this argument entirely in window system dependent code
1436 because we don't even know which window system dependent code
1437 to run until we've recognized this argument. */
1439 char *displayname
= 0;
1440 int count_before
= skip_args
;
1442 /* Skip any number of -d options, but only use the last one. */
1445 int count_before_this
= skip_args
;
1447 if (argmatch (argv
, argc
, "-d", "--display", 3, &displayname
, &skip_args
))
1449 else if (argmatch (argv
, argc
, "-display", 0, 3, &displayname
, &skip_args
))
1454 count_before
= count_before_this
;
1457 /* If we have the form --display=NAME,
1458 convert it into -d name.
1459 This requires inserting a new element into argv. */
1460 if (displayname
!= 0 && skip_args
- count_before
== 1)
1462 char **new = (char **) xmalloc (sizeof (char *) * (argc
+ 2));
1465 for (j
= 0; j
< count_before
+ 1; j
++)
1467 new[count_before
+ 1] = "-d";
1468 new[count_before
+ 2] = displayname
;
1469 for (j
= count_before
+ 2; j
<argc
; j
++)
1470 new[j
+ 1] = argv
[j
];
1474 /* Change --display to -d, when its arg is separate. */
1475 else if (displayname
!= 0 && skip_args
> count_before
1476 && argv
[count_before
+ 1][1] == '-')
1477 argv
[count_before
+ 1] = "-d";
1479 /* Don't actually discard this arg. */
1480 skip_args
= count_before
;
1484 /* argmatch must not be used after here,
1485 except when bulding temacs
1486 because the -d argument has not been skipped in skip_args. */
1489 /* Call early 'cause init_environment needs it. */
1491 /* Set defaults for several environment variables. */
1493 init_environment (argc
, argv
, skip_args
);
1500 /* Initialize environment from registry settings. */
1501 init_environment (argv
);
1502 init_ntproc (); /* must precede init_editfns. */
1505 #if defined (MAC_OSX) && defined (HAVE_CARBON)
1507 init_mac_osx_environment ();
1510 /* egetenv is a pretty low-level facility, which may get called in
1511 many circumstances; it seems flimsy to put off initializing it
1512 until calling init_callproc. */
1513 set_process_environment ();
1514 /* AIX crashes are reported in system versions 3.2.3 and 3.2.4
1515 if this is not done. Do it after set_process_environment so that we
1516 don't pollute Vprocess_environment. */
1517 /* Setting LANG here will defeat the startup locale processing... */
1522 init_buffer (); /* Init default directory of main buffer. */
1524 init_callproc_1 (); /* Must precede init_cmdargs and init_sys_modes. */
1525 init_cmdargs (argc
, argv
, skip_args
); /* Must precede init_lread. */
1529 /* Erase any pre-dump messages in the message log, to avoid confusion. */
1530 Lisp_Object old_log_max
;
1531 old_log_max
= Vmessage_log_max
;
1532 XSETFASTINT (Vmessage_log_max
, 0);
1533 message_dolog ("", 0, 1, 0);
1534 Vmessage_log_max
= old_log_max
;
1537 init_callproc (); /* Must follow init_cmdargs but not init_sys_modes. */
1540 /* Intern the names of all standard functions and variables;
1541 define standard keys. */
1545 /* The basic levels of Lisp must come first. */
1546 /* And data must come first of all
1547 for the sake of symbols like error-message. */
1549 /* Called before init_window_once for Mac OS Classic. */
1558 syms_of_floatfns ();
1562 syms_of_bytecode ();
1564 syms_of_casefiddle ();
1566 syms_of_callproc ();
1567 syms_of_category ();
1569 /* Called before init_window_once for Mac OS Classic. */
1572 syms_of_character ();
1575 #ifndef NO_DIR_LIBRARY
1577 #endif /* not NO_DIR_LIBRARY */
1583 syms_of_coding (); /* This should be after syms_of_fileio. */
1584 #ifdef CLASH_DETECTION
1585 syms_of_filelock ();
1586 #endif /* CLASH_DETECTION */
1595 /* Called before init_window_once for Mac OS Classic. */
1606 /* Called before init_window_once for Mac OS Classic. */
1607 syms_of_textprop ();
1609 syms_of_composite ();
1615 #endif /* WINDOWSNT */
1618 #ifdef HAVE_WINDOW_SYSTEM
1619 #ifdef USE_FONT_BACKEND
1621 #endif /* USE_FONT_BACKEND */
1624 #endif /* HAVE_WINDOW_SYSTEM */
1625 #ifdef HAVE_X_WINDOWS
1635 #endif /* HAVE_X_WINDOWS */
1639 /* Called before init_window_once for Mac OS Classic. */
1647 syms_of_w32select ();
1650 #endif /* HAVE_NTGUI */
1652 #if defined (MAC_OSX) && defined (HAVE_CARBON)
1656 syms_of_macselect ();
1658 #endif /* MAC_OSX && HAVE_CARBON */
1668 keys_of_casefiddle ();
1671 keys_of_keyboard ();
1678 /* Initialization that must be done even if the global variable
1679 initialized is non zero. */
1681 globals_of_w32fns ();
1682 globals_of_w32menu ();
1683 globals_of_w32select ();
1684 #endif /* HAVE_NTGUI */
1689 if (!noninteractive
)
1692 init_vms_input ();/* init_display calls get_frame_size, that needs this. */
1694 init_display (); /* Determine terminal type. init_sys_modes uses results. */
1697 /* Called before init_window_once for Mac OS Classic. */
1698 init_keyboard (); /* This too must precede init_sys_modes. */
1701 init_vmsproc (); /* And this too. */
1703 init_sys_modes (); /* Init system terminal modes (RAW or CBREAK, etc.). */
1706 #ifdef HAVE_WINDOW_SYSTEM
1709 #endif /* HAVE_WINDOW_SYSTEM */
1725 /* Handle -l loadup, args passed by Makefile. */
1726 if (argmatch (argv
, argc
, "-l", "--load", 3, &file
, &skip_args
))
1727 Vtop_level
= Fcons (intern ("load"),
1728 Fcons (build_string (file
), Qnil
));
1729 /* Unless next switch is -nl, load "loadup.el" first thing. */
1731 Vtop_level
= Fcons (intern ("load"),
1732 Fcons (build_string ("loadup.el"), Qnil
));
1739 /* If the execution TZ happens to be the same as the dump TZ,
1740 change it to some other value and then change it back,
1741 to force the underlying implementation to reload the TZ info.
1742 This is needed on implementations that load TZ info from files,
1743 since the TZ file contents may differ between dump and execution. */
1744 char *tz
= getenv ("TZ");
1745 if (tz
&& !strcmp (tz
, dump_tz
))
1755 /* Set up for profiling. This is known to work on FreeBSD,
1756 GNU/Linux and MinGW. It might work on some other systems too.
1757 Give it a try and tell us if it works on your system. To compile
1758 for profiling, add -pg to the switches your platform uses in
1759 CFLAGS and LDFLAGS. For example:
1760 `make CFLAGS="-pg -g -O -DPROFILING=1" LDFLAGS="-pg -g"'. */
1761 #if defined (__FreeBSD__) || defined (GNU_LINUX) || defined(__MINGW32__)
1765 extern void _mcleanup ();
1767 extern unsigned char etext
asm ("etext");
1771 extern void safe_bcopy ();
1772 extern void dump_opcode_frequencies ();
1775 /* This uses safe_bcopy because that function comes first in the
1776 Emacs executable. It might be better to use something that
1777 gives the start of the text segment, but start_of_text is not
1778 defined on all systems now. */
1779 monstartup (safe_bcopy
, &etext
);
1788 #ifdef LOCALTIME_CACHE
1789 /* Some versions of localtime have a bug. They cache the value of the time
1790 zone rather than looking it up every time. Since localtime() is
1791 called to bolt the undumping time into the undumped emacs, this
1792 results in localtime ignoring the TZ environment variable.
1793 This flushes the new TZ value into localtime. */
1795 #endif /* defined (LOCALTIME_CACHE) */
1797 /* Enter editor command loop. This never returns. */
1803 /* Sort the args so we can find the most important ones
1804 at the beginning of argv. */
1806 /* First, here's a table of all the standard options. */
1808 struct standard_args
1816 struct standard_args standard_args
[] =
1818 { "-version", "--version", 150, 0 },
1820 { "-nl", "--no-shared-memory", 140, 0 },
1823 { "-map", "--map-data", 130, 0 },
1825 { "-t", "--terminal", 120, 1 },
1826 { "-nw", "--no-window-system", 110, 0 },
1827 { "-nw", "--no-windows", 110, 0 },
1828 { "-batch", "--batch", 100, 0 },
1829 { "-script", "--script", 100, 1 },
1830 { "-help", "--help", 90, 0 },
1831 { "-no-unibyte", "--no-unibyte", 83, 0 },
1832 { "-multibyte", "--multibyte", 82, 0 },
1833 { "-unibyte", "--unibyte", 81, 0 },
1834 { "-no-multibyte", "--no-multibyte", 80, 0 },
1835 { "-nl", "--no-loadup", 70, 0 },
1836 { "-enable-font-backend", "--enable-font-backend", 65, 0 },
1837 { "-disable-font-backend", "--disable-font-backend", 65, 0 },
1838 /* -d must come last before the options handled in startup.el. */
1839 { "-d", "--display", 60, 1 },
1840 { "-display", 0, 60, 1 },
1841 /* Now for the options handled in startup.el. */
1842 { "-Q", "--quick", 55, 0 },
1843 { "-quick", 0, 55, 0 },
1844 { "-q", "--no-init-file", 50, 0 },
1845 { "-no-init-file", 0, 50, 0 },
1846 { "-no-site-file", "--no-site-file", 40, 0 },
1847 { "-no-splash", "--no-splash", 40, 0 },
1848 { "-u", "--user", 30, 1 },
1849 { "-user", 0, 30, 1 },
1850 { "-debug-init", "--debug-init", 20, 0 },
1851 { "-nbi", "--no-bitmap-icon", 15, 0 },
1852 { "-iconic", "--iconic", 15, 0 },
1853 { "-D", "--basic-display", 12, 0},
1854 { "-basic-display", 0, 12, 0},
1855 { "-bg", "--background-color", 10, 1 },
1856 { "-background", 0, 10, 1 },
1857 { "-fg", "--foreground-color", 10, 1 },
1858 { "-foreground", 0, 10, 1 },
1859 { "-bd", "--border-color", 10, 1 },
1860 { "-bw", "--border-width", 10, 1 },
1861 { "-ib", "--internal-border", 10, 1 },
1862 { "-ms", "--mouse-color", 10, 1 },
1863 { "-cr", "--cursor-color", 10, 1 },
1864 { "-nbc", "--no-blinking-cursor", 10, 0 },
1865 { "-fn", "--font", 10, 1 },
1866 { "-font", 0, 10, 1 },
1867 { "-fs", "--fullscreen", 10, 0 },
1868 { "-fw", "--fullwidth", 10, 0 },
1869 { "-fh", "--fullheight", 10, 0 },
1870 { "-g", "--geometry", 10, 1 },
1871 { "-geometry", 0, 10, 1 },
1872 { "-T", "--title", 10, 1 },
1873 { "-title", 0, 10, 1 },
1874 { "-name", "--name", 10, 1 },
1875 { "-xrm", "--xrm", 10, 1 },
1876 { "-r", "--reverse-video", 5, 0 },
1878 { "-reverse", 0, 5, 0 },
1879 { "-hb", "--horizontal-scroll-bars", 5, 0 },
1880 { "-vb", "--vertical-scroll-bars", 5, 0 },
1881 { "-color", "--color", 5, 0},
1882 /* These have the same priority as ordinary file name args,
1883 so they are not reordered with respect to those. */
1884 { "-L", "--directory", 0, 1 },
1885 { "-directory", 0, 0, 1 },
1886 { "-l", "--load", 0, 1 },
1887 { "-load", 0, 0, 1 },
1888 { "-scriptload", "--scriptload", 0, 1 },
1889 { "-f", "--funcall", 0, 1 },
1890 { "-funcall", 0, 0, 1 },
1891 { "-eval", "--eval", 0, 1 },
1892 { "-execute", "--execute", 0, 1 },
1893 { "-find-file", "--find-file", 0, 1 },
1894 { "-visit", "--visit", 0, 1 },
1895 { "-file", "--file", 0, 1 },
1896 { "-insert", "--insert", 0, 1 },
1897 /* This should be processed after ordinary file name args and the like. */
1898 { "-kill", "--kill", -10, 0 },
1901 /* Reorder the elements of ARGV (assumed to have ARGC elements)
1902 so that the highest priority ones come first.
1903 Do not change the order of elements of equal priority.
1904 If an option takes an argument, keep it and its argument together.
1906 If an option that takes no argument appears more
1907 than once, eliminate all but one copy of it. */
1910 sort_args (argc
, argv
)
1914 char **new = (char **) xmalloc (sizeof (char *) * argc
);
1915 /* For each element of argv,
1916 the corresponding element of options is:
1917 0 for an option that takes no arguments,
1918 1 for an option that takes one argument, etc.
1919 -1 for an ordinary non-option argument. */
1920 int *options
= (int *) xmalloc (sizeof (int) * argc
);
1921 int *priority
= (int *) xmalloc (sizeof (int) * argc
);
1923 int incoming_used
= 1;
1927 /* Categorize all the options,
1928 and figure out which argv elts are option arguments. */
1929 for (from
= 1; from
< argc
; from
++)
1933 if (argv
[from
][0] == '-')
1938 /* If we have found "--", don't consider
1939 any more arguments as options. */
1940 if (argv
[from
][1] == '-' && argv
[from
][2] == 0)
1942 /* Leave the "--", and everything following it, at the end. */
1943 for (; from
< argc
; from
++)
1945 priority
[from
] = -100;
1951 /* Look for a match with a known old-fashioned option. */
1952 for (i
= 0; i
< sizeof (standard_args
) / sizeof (standard_args
[0]); i
++)
1953 if (!strcmp (argv
[from
], standard_args
[i
].name
))
1955 options
[from
] = standard_args
[i
].nargs
;
1956 priority
[from
] = standard_args
[i
].priority
;
1957 if (from
+ standard_args
[i
].nargs
>= argc
)
1958 fatal ("Option `%s' requires an argument\n", argv
[from
]);
1959 from
+= standard_args
[i
].nargs
;
1963 /* Look for a match with a known long option.
1964 MATCH is -1 if no match so far, -2 if two or more matches so far,
1965 >= 0 (the table index of the match) if just one match so far. */
1966 if (argv
[from
][1] == '-')
1969 thislen
= strlen (argv
[from
]);
1970 equals
= index (argv
[from
], '=');
1972 thislen
= equals
- argv
[from
];
1975 i
< sizeof (standard_args
) / sizeof (standard_args
[0]); i
++)
1976 if (standard_args
[i
].longname
1977 && !strncmp (argv
[from
], standard_args
[i
].longname
,
1986 /* If we found exactly one match, use that. */
1989 options
[from
] = standard_args
[match
].nargs
;
1990 priority
[from
] = standard_args
[match
].priority
;
1991 /* If --OPTION=VALUE syntax is used,
1992 this option uses just one argv element. */
1995 if (from
+ options
[from
] >= argc
)
1996 fatal ("Option `%s' requires an argument\n", argv
[from
]);
1997 from
+= options
[from
];
2004 /* Copy the arguments, in order of decreasing priority, to NEW. */
2006 while (incoming_used
< argc
)
2009 int best_priority
= -9999;
2011 /* Find the highest priority remaining option.
2012 If several have equal priority, take the first of them. */
2013 for (from
= 1; from
< argc
; from
++)
2015 if (argv
[from
] != 0 && priority
[from
] > best_priority
)
2017 best_priority
= priority
[from
];
2020 /* Skip option arguments--they are tied to the options. */
2021 if (options
[from
] > 0)
2022 from
+= options
[from
];
2028 /* Copy the highest priority remaining option, with its args, to NEW.
2029 Unless it is a duplicate of the previous one. */
2030 if (! (options
[best
] == 0
2031 && ! strcmp (new[to
- 1], argv
[best
])))
2033 new[to
++] = argv
[best
];
2034 for (i
= 0; i
< options
[best
]; i
++)
2035 new[to
++] = argv
[best
+ i
+ 1];
2038 incoming_used
+= 1 + (options
[best
] > 0 ? options
[best
] : 0);
2040 /* Clear out this option in ARGV. */
2042 for (i
= 0; i
< options
[best
]; i
++)
2043 argv
[best
+ i
+ 1] = 0;
2046 /* If duplicate options were deleted, fill up extra space with null ptrs. */
2050 bcopy (new, argv
, sizeof (char *) * argc
);
2057 DEFUN ("kill-emacs", Fkill_emacs
, Skill_emacs
, 0, 1, "P",
2058 doc
: /* Exit the Emacs job and kill it.
2059 If ARG is an integer, return ARG as the exit program code.
2060 If ARG is a string, stuff it as keyboard input.
2062 The value of `kill-emacs-hook', if not void,
2063 is a list of functions (of no args),
2064 all of which are called before Emacs is actually killed. */)
2068 struct gcpro gcpro1
;
2075 if (!NILP (Vrun_hooks
) && !noninteractive
)
2076 call1 (Vrun_hooks
, intern ("kill-emacs-hook"));
2080 /* Is it really necessary to do this deassign
2081 when we are going to exit anyway? */
2086 shut_down_emacs (0, 0, STRINGP (arg
) ? arg
: Qnil
);
2088 /* If we have an auto-save list file,
2089 kill it because we are exiting Emacs deliberately (not crashing).
2090 Do it after shut_down_emacs, which does an auto-save. */
2091 if (STRINGP (Vauto_save_list_file_name
))
2092 unlink (SDATA (Vauto_save_list_file_name
));
2094 exit (INTEGERP (arg
) ? XINT (arg
) : EXIT_SUCCESS
);
2100 /* Perform an orderly shutdown of Emacs. Autosave any modified
2101 buffers, kill any child processes, clean up the terminal modes (if
2102 we're in the foreground), and other stuff like that. Don't perform
2103 any redisplay; this may be called when Emacs is shutting down in
2104 the background, or after its X connection has died.
2106 If SIG is a signal number, print a message for it.
2108 This is called by fatal signal handlers, X protocol error handlers,
2112 shut_down_emacs (sig
, no_x
, stuff
)
2116 /* Prevent running of hooks from now on. */
2119 /* Don't update display from now on. */
2120 Vinhibit_redisplay
= Qt
;
2122 /* If we are controlling the terminal, reset terminal modes. */
2123 #ifdef EMACS_HAVE_TTY_PGRP
2125 int pgrp
= EMACS_GETPGRP (0);
2128 if (EMACS_GET_TTY_PGRP (0, &tpgrp
) != -1
2133 if (sig
&& sig
!= SIGTERM
)
2134 fprintf (stderr
, "Fatal error (%d)", sig
);
2142 stuff_buffered_input (stuff
);
2145 inhibit_sentinels
= 1;
2147 kill_buffer_processes (Qnil
);
2148 Fdo_auto_save (Qt
, Qnil
);
2150 #ifdef CLASH_DETECTION
2151 unlock_all_files ();
2155 kill_vms_processes ();
2158 #if 0 /* This triggers a bug in XCloseDisplay and is not needed. */
2159 #ifdef HAVE_X_WINDOWS
2160 /* It's not safe to call intern here. Maybe we are crashing. */
2161 if (!noninteractive
&& SYMBOLP (Vwindow_system
)
2162 && SCHARS (SYMBOL_NAME (Vwindow_system
)) == 1
2163 && SREF (SYMBOL_NAME (Vwindow_system
), 0) == 'x'
2165 Fx_close_current_connection ();
2166 #endif /* HAVE_X_WINDOWS */
2170 /* There is a tendency for a SIGIO signal to arrive within exit,
2171 and cause a SIGHUP because the input descriptor is already closed. */
2173 signal (SIGIO
, SIG_IGN
);
2180 /* Do this only if terminating normally, we want glyph matrices
2181 etc. in a core dump. */
2182 if (sig
== 0 || sig
== SIGTERM
)
2184 check_glyph_memory ();
2185 check_message_stack ();
2199 DEFUN ("dump-emacs-data", Fdump_emacs_data
, Sdump_emacs_data
, 1, 1, 0,
2200 doc
: /* Dump current state of Emacs into data file FILENAME.
2201 This function exists on systems that use HAVE_SHM. */)
2203 Lisp_Object filename
;
2205 extern char my_edata
[];
2209 CHECK_STRING (filename
);
2210 filename
= Fexpand_file_name (filename
, Qnil
);
2213 Vpurify_flag
= Qnil
;
2216 /* Tell malloc where start of impure now is. */
2217 /* Also arrange for warnings when nearly out of space. */
2218 #ifndef SYSTEM_MALLOC
2219 memory_warnings (my_edata
, malloc_warning
);
2221 map_out_data (SDATA (filename
));
2228 #else /* not HAVE_SHM */
2230 DEFUN ("dump-emacs", Fdump_emacs
, Sdump_emacs
, 2, 2, 0,
2231 doc
: /* Dump current state of Emacs into executable file FILENAME.
2232 Take symbols from SYMFILE (presumably the file you executed to run Emacs).
2233 This is used in the file `loadup.el' when building Emacs.
2235 You must run Emacs in batch mode in order to dump it. */)
2237 Lisp_Object filename
, symfile
;
2239 extern char my_edata
[];
2242 int count
= SPECPDL_INDEX ();
2246 if (! noninteractive
)
2247 error ("Dumping Emacs works only in batch mode");
2250 if (heap_bss_diff
> MAX_HEAP_BSS_DIFF
)
2252 fprintf (stderr
, "**************************************************\n");
2253 fprintf (stderr
, "Warning: Your system has a gap between BSS and the\n");
2254 fprintf (stderr
, "heap (%lu byte). This usually means that exec-shield\n",
2256 fprintf (stderr
, "or something similar is in effect. The dump may\n");
2257 fprintf (stderr
, "fail because of this. See the section about \n");
2258 fprintf (stderr
, "exec-shield in etc/PROBLEMS for more information.\n");
2259 fprintf (stderr
, "**************************************************\n");
2261 #endif /* GNU_LINUX */
2263 /* Bind `command-line-processed' to nil before dumping,
2264 so that the dumped Emacs will process its command line
2265 and set up to work with X windows if appropriate. */
2266 symbol
= intern ("command-line-processed");
2267 specbind (symbol
, Qnil
);
2269 CHECK_STRING (filename
);
2270 filename
= Fexpand_file_name (filename
, Qnil
);
2271 if (!NILP (symfile
))
2273 CHECK_STRING (symfile
);
2274 if (SCHARS (symfile
))
2275 symfile
= Fexpand_file_name (symfile
, Qnil
);
2279 Vpurify_flag
= Qnil
;
2282 set_time_zone_rule (dump_tz
);
2283 #ifndef LOCALTIME_CACHE
2284 /* Force a tz reload, since set_time_zone_rule doesn't. */
2291 mapout_data (SDATA (filename
));
2293 /* Tell malloc where start of impure now is. */
2294 /* Also arrange for warnings when nearly out of space. */
2295 #ifndef SYSTEM_MALLOC
2297 /* On Windows, this was done before dumping, and that once suffices.
2298 Meanwhile, my_edata is not valid on Windows. */
2299 memory_warnings (my_edata
, malloc_warning
);
2300 #endif /* not WINDOWSNT */
2302 #if !defined (SYSTEM_MALLOC) && defined (HAVE_GTK_AND_PTHREAD) && !defined SYNC_INPUT
2303 /* Pthread may call malloc before main, and then we will get an endless
2304 loop, because pthread_self (see alloc.c) calls malloc the first time
2305 it is called on some systems. */
2306 reset_malloc_hooks ();
2308 #ifdef DOUG_LEA_MALLOC
2309 malloc_state_ptr
= malloc_get_state ();
2312 #ifdef USE_MMAP_FOR_BUFFERS
2315 unexec (SDATA (filename
),
2316 !NILP (symfile
) ? SDATA (symfile
) : 0, my_edata
, 0, 0);
2317 #ifdef USE_MMAP_FOR_BUFFERS
2320 #ifdef DOUG_LEA_MALLOC
2321 free (malloc_state_ptr
);
2323 #endif /* not VMS */
2327 return unbind_to (count
, Qnil
);
2330 #endif /* not HAVE_SHM */
2332 #endif /* not CANNOT_DUMP */
2335 /* Recover from setlocale (LC_ALL, ""). */
2339 /* The Emacs Lisp reader needs LC_NUMERIC to be "C",
2340 so that numbers are read and printed properly for Emacs Lisp. */
2341 setlocale (LC_NUMERIC
, "C");
2344 /* Set system locale CATEGORY, with previous locale *PLOCALE, to
2347 synchronize_locale (category
, plocale
, desired_locale
)
2349 Lisp_Object
*plocale
;
2350 Lisp_Object desired_locale
;
2352 if (! EQ (*plocale
, desired_locale
))
2354 *plocale
= desired_locale
;
2355 setlocale (category
, (STRINGP (desired_locale
)
2356 ? (char *) SDATA (desired_locale
)
2361 /* Set system time locale to match Vsystem_time_locale, if possible. */
2363 synchronize_system_time_locale ()
2365 synchronize_locale (LC_TIME
, &Vprevious_system_time_locale
,
2366 Vsystem_time_locale
);
2369 /* Set system messages locale to match Vsystem_messages_locale, if
2372 synchronize_system_messages_locale ()
2375 synchronize_locale (LC_MESSAGES
, &Vprevious_system_messages_locale
,
2376 Vsystem_messages_locale
);
2379 #endif /* HAVE_SETLOCALE */
2386 decode_env_path (evarname
, defalt
)
2387 char *evarname
, *defalt
;
2389 register char *path
, *p
;
2390 Lisp_Object lpath
, element
, tem
;
2392 /* It's okay to use getenv here, because this function is only used
2393 to initialize variables when Emacs starts up, and isn't called
2396 path
= (char *) getenv (evarname
);
2402 /* Ensure values from the environment use the proper directory separator. */
2405 p
= alloca (strlen (path
) + 1);
2409 if ('/' == DIRECTORY_SEP
)
2410 dostounix_filename (path
);
2412 unixtodos_filename (path
);
2418 p
= index (path
, SEPCHAR
);
2419 if (!p
) p
= path
+ strlen (path
);
2420 element
= (p
- path
? make_string (path
, p
- path
)
2421 : build_string ("."));
2423 /* Add /: to the front of the name
2424 if it would otherwise be treated as magic. */
2425 tem
= Ffind_file_name_handler (element
, Qt
);
2427 /* However, if the handler says "I'm safe",
2428 don't bother adding /:. */
2432 prop
= Fget (tem
, intern ("safe-magic"));
2438 element
= concat2 (build_string ("/:"), element
);
2440 lpath
= Fcons (element
, lpath
);
2446 return Fnreverse (lpath
);
2452 Qfile_name_handler_alist
= intern ("file-name-handler-alist");
2453 staticpro (&Qfile_name_handler_alist
);
2457 defsubr (&Sdump_emacs_data
);
2459 defsubr (&Sdump_emacs
);
2463 defsubr (&Skill_emacs
);
2465 defsubr (&Sinvocation_name
);
2466 defsubr (&Sinvocation_directory
);
2468 DEFVAR_LISP ("command-line-args", &Vcommand_line_args
,
2469 doc
: /* Args passed by shell to Emacs, as a list of strings.
2470 Many arguments are deleted from the list as they are processed. */);
2472 DEFVAR_LISP ("system-type", &Vsystem_type
,
2473 doc
: /* Value is symbol indicating type of operating system you are using.
2475 `gnu/linux' compiled for a GNU/Linux system.
2476 `darwin' compiled for Darwin (GNU-Darwin, Mac OS X, ...).
2477 `macos' compiled for Mac OS 9.
2478 `ms-dos' compiled as an MS-DOS application.
2479 `windows-nt' compiled as a native W32 application.
2480 `cygwin' compiled using the Cygwin library.
2482 `axp-vms' compiled for a (Open)VMS system.
2483 Anything else indicates some sort of Unix system. */);
2484 Vsystem_type
= intern (SYSTEM_TYPE
);
2486 DEFVAR_LISP ("system-configuration", &Vsystem_configuration
,
2487 doc
: /* Value is string indicating configuration Emacs was built for.
2488 On MS-Windows, the value reflects the OS flavor and version on which
2489 Emacs is running. */);
2490 Vsystem_configuration
= build_string (EMACS_CONFIGURATION
);
2492 DEFVAR_LISP ("system-configuration-options", &Vsystem_configuration_options
,
2493 doc
: /* String containing the configuration options Emacs was built with. */);
2494 Vsystem_configuration_options
= build_string (EMACS_CONFIG_OPTIONS
);
2496 DEFVAR_BOOL ("noninteractive", &noninteractive1
,
2497 doc
: /* Non-nil means Emacs is running without interactive terminal. */);
2499 DEFVAR_LISP ("kill-emacs-hook", &Vkill_emacs_hook
,
2500 doc
: /* Hook to be run when kill-emacs is called.
2501 Since `kill-emacs' may be invoked when the terminal is disconnected (or
2502 in other similar situations), functions placed on this hook should not
2503 expect to be able to interact with the user. To ask for confirmation,
2504 see `kill-emacs-query-functions' instead.
2506 The hook is not run in batch mode, i.e., if `noninteractive' is non-nil. */);
2507 Vkill_emacs_hook
= Qnil
;
2509 DEFVAR_INT ("emacs-priority", &emacs_priority
,
2510 doc
: /* Priority for Emacs to run at.
2511 This value is effective only if set before Emacs is dumped,
2512 and only if the Emacs executable is installed with setuid to permit
2513 it to change priority. (Emacs sets its uid back to the real uid.)
2514 Currently, you need to define SET_EMACS_PRIORITY in `config.h'
2515 before you compile Emacs, to enable the code for this feature. */);
2518 DEFVAR_LISP ("path-separator", &Vpath_separator
,
2519 doc
: /* String containing the character that separates directories in
2520 search paths, such as PATH and other similar environment variables. */);
2523 Vpath_separator
= make_string (&c
, 1);
2526 DEFVAR_LISP ("invocation-name", &Vinvocation_name
,
2527 doc
: /* The program name that was used to run Emacs.
2528 Any directory names are omitted. */);
2530 DEFVAR_LISP ("invocation-directory", &Vinvocation_directory
,
2531 doc
: /* The directory in which the Emacs executable was found, to run it.
2532 The value is nil if that directory's name is not known. */);
2534 DEFVAR_LISP ("installation-directory", &Vinstallation_directory
,
2535 doc
: /* A directory within which to look for the `lib-src' and `etc' directories.
2536 This is non-nil when we can't find those directories in their standard
2537 installed locations, but we can find them
2538 near where the Emacs executable was found. */);
2539 Vinstallation_directory
= Qnil
;
2541 DEFVAR_LISP ("system-messages-locale", &Vsystem_messages_locale
,
2542 doc
: /* System locale for messages. */);
2543 Vsystem_messages_locale
= Qnil
;
2545 DEFVAR_LISP ("previous-system-messages-locale",
2546 &Vprevious_system_messages_locale
,
2547 doc
: /* Most recently used system locale for messages. */);
2548 Vprevious_system_messages_locale
= Qnil
;
2550 DEFVAR_LISP ("system-time-locale", &Vsystem_time_locale
,
2551 doc
: /* System locale for time. */);
2552 Vsystem_time_locale
= Qnil
;
2554 DEFVAR_LISP ("previous-system-time-locale", &Vprevious_system_time_locale
,
2555 doc
: /* Most recently used system locale for time. */);
2556 Vprevious_system_time_locale
= Qnil
;
2559 /* arch-tag: 7bfd356a-c720-4612-8ab6-aa4222931c2e
2560 (do not change this comment) */