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
;
366 handle_USR1_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
);
382 handle_USR2_signal (sig
)
385 struct input_event buf
;
387 SIGNAL_THREAD_CHECK (sig
);
388 bzero (&buf
, sizeof buf
);
389 buf
.kind
= USER_SIGNAL_EVENT
;
391 buf
.frame_or_window
= selected_frame
;
393 kbd_buffer_store_event (&buf
);
397 /* Handle bus errors, invalid instruction, etc. */
399 fatal_error_signal (sig
)
402 SIGNAL_THREAD_CHECK (sig
);
403 fatal_error_code
= sig
;
404 signal (sig
, SIG_DFL
);
406 TOTALLY_UNBLOCK_INPUT
;
408 /* If fatal error occurs in code below, avoid infinite recursion. */
409 if (! fatal_error_in_progress
)
411 fatal_error_in_progress
= 1;
413 shut_down_emacs (sig
, 0, Qnil
);
417 LIB$
STOP (SS$_ABORT
);
419 /* Signal the same code; this time it will really be fatal.
420 Remember that since we're in a signal handler, the signal we're
421 going to send is probably blocked, so we have to unblock it if we
422 want to really receive it. */
424 sigunblock (sigmask (fatal_error_code
));
427 if (fatal_error_signal_hook
)
428 fatal_error_signal_hook ();
430 kill (getpid (), fatal_error_code
);
436 /* Handler for SIGDANGER. */
438 memory_warning_signal (sig
)
441 signal (sig
, memory_warning_signal
);
442 SIGNAL_THREAD_CHECK (sig
);
444 malloc_warning ("Operating system warns that virtual memory is running low.\n");
446 /* It might be unsafe to call do_auto_save now. */
447 force_auto_save_soon ();
451 /* We define abort, rather than using it from the library,
452 so that GDB can return from a breakpoint here.
453 MSDOS has its own definition in msdos.c. */
455 #if ! defined (DOS_NT) && ! defined (NO_ABORT)
457 #ifndef ABORT_RETURN_TYPE
458 #define ABORT_RETURN_TYPE void
464 kill (getpid (), SIGABRT
);
465 /* This shouldn't be executed, but it prevents a warning. */
471 /* Code for dealing with Lisp access to the Unix command line. */
474 init_cmdargs (argc
, argv
, skip_args
)
480 Lisp_Object name
, dir
, tem
;
481 int count
= SPECPDL_INDEX ();
482 Lisp_Object raw_name
;
487 raw_name
= build_string (argv
[0]);
489 /* Add /: to the front of the name
490 if it would otherwise be treated as magic. */
491 tem
= Ffind_file_name_handler (raw_name
, Qt
);
493 raw_name
= concat2 (build_string ("/:"), raw_name
);
495 Vinvocation_name
= Ffile_name_nondirectory (raw_name
);
496 Vinvocation_directory
= Ffile_name_directory (raw_name
);
498 /* If we got no directory in argv[0], search PATH to find where
499 Emacs actually came from. */
500 if (NILP (Vinvocation_directory
))
503 int yes
= openp (Vexec_path
, Vinvocation_name
,
504 Vexec_suffixes
, &found
, make_number (X_OK
));
507 /* Add /: to the front of the name
508 if it would otherwise be treated as magic. */
509 tem
= Ffind_file_name_handler (found
, Qt
);
511 found
= concat2 (build_string ("/:"), found
);
512 Vinvocation_directory
= Ffile_name_directory (found
);
516 if (!NILP (Vinvocation_directory
)
517 && NILP (Ffile_name_absolute_p (Vinvocation_directory
)))
518 /* Emacs was started with relative path, like ./emacs.
520 Vinvocation_directory
= Fexpand_file_name (Vinvocation_directory
, Qnil
);
522 Vinstallation_directory
= Qnil
;
524 if (!NILP (Vinvocation_directory
))
526 dir
= Vinvocation_directory
;
527 name
= Fexpand_file_name (Vinvocation_name
, dir
);
530 Lisp_Object tem
, lib_src_exists
;
531 Lisp_Object etc_exists
, info_exists
;
533 /* See if dir contains subdirs for use by Emacs.
534 Check for the ones that would exist in a build directory,
535 not including lisp and info. */
536 tem
= Fexpand_file_name (build_string ("lib-src"), dir
);
537 lib_src_exists
= Ffile_exists_p (tem
);
540 /* MSDOS installations frequently remove lib-src, but we still
541 must set installation-directory, or else info won't find
542 its files (it uses the value of installation-directory). */
543 tem
= Fexpand_file_name (build_string ("info"), dir
);
544 info_exists
= Ffile_exists_p (tem
);
549 if (!NILP (lib_src_exists
) || !NILP (info_exists
))
551 tem
= Fexpand_file_name (build_string ("etc"), dir
);
552 etc_exists
= Ffile_exists_p (tem
);
553 if (!NILP (etc_exists
))
555 Vinstallation_directory
556 = Ffile_name_as_directory (dir
);
561 /* See if dir's parent contains those subdirs. */
562 tem
= Fexpand_file_name (build_string ("../lib-src"), dir
);
563 lib_src_exists
= Ffile_exists_p (tem
);
567 /* See the MSDOS commentary above. */
568 tem
= Fexpand_file_name (build_string ("../info"), dir
);
569 info_exists
= Ffile_exists_p (tem
);
574 if (!NILP (lib_src_exists
) || !NILP (info_exists
))
576 tem
= Fexpand_file_name (build_string ("../etc"), dir
);
577 etc_exists
= Ffile_exists_p (tem
);
578 if (!NILP (etc_exists
))
580 tem
= Fexpand_file_name (build_string (".."), dir
);
581 Vinstallation_directory
582 = Ffile_name_as_directory (tem
);
587 /* If the Emacs executable is actually a link,
588 next try the dir that the link points into. */
589 tem
= Ffile_symlink_p (name
);
592 name
= Fexpand_file_name (tem
, dir
);
593 dir
= Ffile_name_directory (name
);
600 Vcommand_line_args
= Qnil
;
602 for (i
= argc
- 1; i
>= 0; i
--)
604 if (i
== 0 || i
> skip_args
)
605 /* For the moment, we keep arguments as is in unibyte strings.
606 They are decoded in the function command-line after we know
607 locale-coding-system. */
609 = Fcons (make_unibyte_string (argv
[i
], strlen (argv
[i
])),
613 unbind_to (count
, Qnil
);
616 DEFUN ("invocation-name", Finvocation_name
, Sinvocation_name
, 0, 0, 0,
617 doc
: /* Return the program name that was used to run Emacs.
618 Any directory names are omitted. */)
621 return Fcopy_sequence (Vinvocation_name
);
624 DEFUN ("invocation-directory", Finvocation_directory
, Sinvocation_directory
,
626 doc
: /* Return the directory name in which the Emacs executable was located. */)
629 return Fcopy_sequence (Vinvocation_directory
);
634 #ifdef LINK_CRTL_SHARE
635 #ifdef SHARABLE_LIB_BUG
636 extern noshare
char **environ
;
637 #endif /* SHARABLE_LIB_BUG */
638 #endif /* LINK_CRTL_SHARE */
642 /* A valid but unlikely value for the TZ environment value.
643 It is OK (though a bit slower) if the user actually chooses this value. */
644 static char dump_tz
[] = "UtC0";
647 #ifndef ORDINARY_LINK
648 /* We don't include crtbegin.o and crtend.o in the link,
649 so these functions and variables might be missed.
650 Provide dummy definitions to avoid error.
651 (We don't have any real constructors or destructors.) */
653 #ifndef GCC_CTORS_IN_LIBC
654 void __do_global_ctors ()
656 void __do_global_ctors_aux ()
658 void __do_global_dtors ()
660 /* GNU/Linux has a bug in its library; avoid an error. */
662 char * __CTOR_LIST__
[2] = { (char *) (-1), 0 };
664 char * __DTOR_LIST__
[2] = { (char *) (-1), 0 };
665 #endif /* GCC_CTORS_IN_LIBC */
668 #endif /* __GNUC__ */
669 #endif /* ORDINARY_LINK */
671 /* Test whether the next argument in ARGV matches SSTR or a prefix of
672 LSTR (at least MINLEN characters). If so, then if VALPTR is non-null
673 (the argument is supposed to have a value) store in *VALPTR either
674 the next argument or the portion of this one after the equal sign.
675 ARGV is read starting at position *SKIPPTR; this index is advanced
676 by the number of arguments used.
678 Too bad we can't just use getopt for all of this, but we don't have
679 enough information to do it right. */
682 argmatch (argv
, argc
, sstr
, lstr
, minlen
, valptr
, skipptr
)
695 /* Don't access argv[argc]; give up in advance. */
696 if (argc
<= *skipptr
+ 1)
699 arg
= argv
[*skipptr
+1];
702 if (strcmp (arg
, sstr
) == 0)
706 *valptr
= argv
[*skipptr
+2];
713 arglen
= (valptr
!= NULL
&& (p
= index (arg
, '=')) != NULL
714 ? p
- arg
: strlen (arg
));
715 if (lstr
== 0 || arglen
< minlen
|| strncmp (arg
, lstr
, arglen
) != 0)
717 else if (valptr
== NULL
)
728 else if (argv
[*skipptr
+2] != NULL
)
730 *valptr
= argv
[*skipptr
+2];
740 #ifdef DOUG_LEA_MALLOC
742 /* malloc can be invoked even before main (e.g. by the dynamic
743 linker), so the dumped malloc state must be restored as early as
744 possible using this special hook. */
747 malloc_initialize_hook ()
750 extern char **environ
;
755 if (!malloc_using_checking
)
756 /* Work around a bug in glibc's malloc. MALLOC_CHECK_ must be
757 ignored if the heap to be restored was constructed without
758 malloc checking. Can't use unsetenv, since that calls malloc. */
762 for (p
= environ
; p
&& *p
; p
++)
763 if (strncmp (*p
, "MALLOC_CHECK_=", 14) == 0)
772 malloc_set_state (malloc_state_ptr
);
773 #ifndef XMALLOC_OVERRUN_CHECK
774 free (malloc_state_ptr
);
779 if (my_heap_start
== 0)
780 my_heap_start
= sbrk (0);
781 malloc_using_checking
= getenv ("MALLOC_CHECK_") != NULL
;
785 void (*__malloc_initialize_hook
) () = malloc_initialize_hook
;
787 #endif /* DOUG_LEA_MALLOC */
790 #define REPORT_EMACS_BUG_ADDRESS "bug-gnu-emacs@gnu.org"
791 #define REPORT_EMACS_BUG_PRETEST_ADDRESS "emacs-pretest-bug@gnu.org"
793 /* This function is used to determine an address to which bug report should
797 bug_reporting_address ()
803 temp
= Fsymbol_value (intern ("emacs-version"));
805 /* When `emacs-version' is invalid, use normal address. */
807 return REPORT_EMACS_BUG_ADDRESS
;
809 string
= SDATA (temp
);
811 /* Count dots in `emacs-version'. */
819 /* When `emacs-version' has at least three dots, it is development or
820 pretest version of Emacs. */
821 return count
>= 3 ? REPORT_EMACS_BUG_PRETEST_ADDRESS
: REPORT_EMACS_BUG_ADDRESS
;
824 #ifdef USE_FONT_BACKEND
825 extern int enable_font_backend
;
826 #endif /* USE_FONT_BACKEND */
844 char stack_bottom_variable
;
845 int do_initial_setlocale
;
850 #ifdef HAVE_SETRLIMIT
857 extern Lisp_Object
*stack_base
;
863 extern char my_endbss
[];
864 extern char *my_endbss_static
;
866 if (my_heap_start
== 0)
867 my_heap_start
= sbrk (0);
869 heap_bss_diff
= (char *)my_heap_start
- max (my_endbss
, my_endbss_static
);
872 #ifdef LINUX_SBRK_BUG
876 #ifdef RUN_TIME_REMAP
878 run_time_remap (argv
[0]);
883 unexec_init_emacs_zone ();
886 sort_args (argc
, argv
);
888 while (argv
[argc
]) argc
++;
890 if (argmatch (argv
, argc
, "-version", "--version", 3, NULL
, &skip_args
)
891 /* We don't know the version number unless this is a dumped Emacs.
892 So ignore --version otherwise. */
896 tem
= Fsymbol_value (intern ("emacs-version"));
899 fprintf (stderr
, "Invalid value of `emacs-version'\n");
904 printf ("GNU Emacs %s\n", SDATA (tem
));
905 printf ("Copyright (C) 2006 Free Software Foundation, Inc.\n");
906 printf ("GNU Emacs comes with ABSOLUTELY NO WARRANTY.\n");
907 printf ("You may redistribute copies of Emacs\n");
908 printf ("under the terms of the GNU General Public License.\n");
909 printf ("For more information about these matters, ");
910 printf ("see the file named COPYING.\n");
915 #ifdef HAVE_PERSONALITY_LINUX32
916 /* See if there is a gap between the end of BSS and the heap.
917 In that case, set personality and exec ourself again. */
919 && (strcmp (argv
[argc
-1], "dump") == 0
920 || strcmp (argv
[argc
-1], "bootstrap") == 0)
921 && heap_bss_diff
> MAX_HEAP_BSS_DIFF
)
923 if (! getenv ("EMACS_HEAP_EXEC"))
925 /* Set this so we only do this once. */
926 putenv("EMACS_HEAP_EXEC=true");
928 /* A flag to turn off address randomization which is introduced
929 in linux kernel shipped with fedora core 4 */
930 #define ADD_NO_RANDOMIZE 0x0040000
931 personality (PER_LINUX32
| ADD_NO_RANDOMIZE
);
932 #undef ADD_NO_RANDOMIZE
934 execvp (argv
[0], argv
);
936 /* If the exec fails, try to dump anyway. */
940 #endif /* HAVE_PERSONALITY_LINUX32 */
943 /* Map in shared memory, if we are using that. */
945 if (argmatch (argv
, argc
, "-nl", "--no-shared-memory", 6, NULL
, &skip_args
))
948 /* The shared memory was just restored, which clobbered this. */
954 /* The shared memory was just restored, which clobbered this. */
961 extern int malloc_cookie
;
962 /* This helps out unexnext.c. */
964 if (malloc_jumpstart (malloc_cookie
) != 0)
965 printf ("malloc jumpstart failed!\n");
970 /* Skip process serial number passed in the form -psn_x_y as
971 command-line argument. The WindowServer adds this option when
972 Emacs is invoked from the Finder or by the `open' command. In
973 these cases, the working directory becomes `/', so we change it
974 to the user's home directory. */
975 if (argc
> skip_args
+ 1 && strncmp (argv
[skip_args
+1], "-psn_", 5) == 0)
977 chdir (getenv ("HOME"));
983 /* If -map specified, map the data file in. */
986 if (argmatch (argv
, argc
, "-map", "--map-data", 3, &file
, &skip_args
))
990 #ifdef LINK_CRTL_SHARE
991 #ifdef SHARABLE_LIB_BUG
992 /* Bletcherous shared libraries! */
994 stdin
= fdopen (0, "r");
996 stdout
= fdopen (1, "w");
998 stderr
= fdopen (2, "w");
1001 #endif /* SHARABLE_LIB_BUG */
1002 #endif /* LINK_CRTL_SHARE */
1005 #if defined (HAVE_SETRLIMIT) && defined (RLIMIT_STACK)
1006 /* Extend the stack space available.
1007 Don't do that if dumping, since some systems (e.g. DJGPP)
1008 might define a smaller stack limit at that time. */
1011 && (!noninteractive
|| initialized
)
1013 && !getrlimit (RLIMIT_STACK
, &rlim
))
1016 extern size_t re_max_failures
;
1017 /* Approximate the amount regex.c needs per unit of re_max_failures. */
1018 int ratio
= 20 * sizeof (char *);
1019 /* Then add 33% to cover the size of the smaller stacks that regex.c
1020 successively allocates and discards, on its way to the maximum. */
1022 /* Add in some extra to cover
1023 what we're likely to use for other reasons. */
1024 newlim
= re_max_failures
* ratio
+ 200000;
1026 /* NetBSD (at least NetBSD 1.2G and former) has a bug in its
1027 stack allocation routine for new process that the allocation
1028 fails if stack limit is not on page boundary. So, round up the
1029 new limit to page boundary. */
1030 newlim
= (newlim
+ getpagesize () - 1) / getpagesize () * getpagesize();
1032 if (newlim
> rlim
.rlim_max
)
1034 newlim
= rlim
.rlim_max
;
1035 /* Don't let regex.c overflow the stack we have. */
1036 re_max_failures
= (newlim
- 200000) / ratio
;
1038 if (rlim
.rlim_cur
< newlim
)
1039 rlim
.rlim_cur
= newlim
;
1041 setrlimit (RLIMIT_STACK
, &rlim
);
1043 #endif /* HAVE_SETRLIMIT and RLIMIT_STACK */
1045 /* Record (approximately) where the stack begins. */
1046 stack_bottom
= &stack_bottom_variable
;
1048 #ifdef USG_SHARED_LIBRARIES
1050 brk ((void *)bss_end
);
1055 #ifndef SYSTEM_MALLOC
1056 /* Arrange to get warning messages as memory fills up. */
1057 memory_warnings (0, malloc_warning
);
1059 /* Call malloc at least once, to run the initial __malloc_hook.
1060 Also call realloc and free for consistency. */
1061 free (realloc (malloc (4), 4));
1064 /* Arrange to disable interrupt input inside malloc etc. */
1065 uninterrupt_malloc ();
1066 # endif /* not SYNC_INPUT */
1067 #endif /* not SYSTEM_MALLOC */
1069 #ifdef HAVE_GTK_AND_PTHREAD
1070 main_thread
= pthread_self ();
1071 #endif /* HAVE_GTK_AND_PTHREAD */
1073 #if defined (MSDOS) || defined (WINDOWSNT)
1074 /* We do all file input/output as binary files. When we need to translate
1075 newlines, we do that manually. */
1077 #endif /* MSDOS || WINDOWSNT */
1081 if (!isatty (fileno (stdin
)))
1082 setmode (fileno (stdin
), O_BINARY
);
1083 if (!isatty (fileno (stdout
)))
1086 setmode (fileno (stdout
), O_BINARY
);
1088 #else /* not __DJGPP__ >= 2 */
1089 (stdin
)->_flag
&= ~_IOTEXT
;
1090 (stdout
)->_flag
&= ~_IOTEXT
;
1091 (stderr
)->_flag
&= ~_IOTEXT
;
1092 #endif /* not __DJGPP__ >= 2 */
1095 #ifdef SET_EMACS_PRIORITY
1097 nice (emacs_priority
);
1099 #endif /* SET_EMACS_PRIORITY */
1101 /* Skip initial setlocale if LC_ALL is "C", as it's not needed in that case.
1102 The build procedure uses this while dumping, to ensure that the
1103 dumped Emacs does not have its system locale tables initialized,
1104 as that might cause screwups when the dumped Emacs starts up. */
1106 char *lc_all
= getenv ("LC_ALL");
1107 do_initial_setlocale
= ! lc_all
|| strcmp (lc_all
, "C");
1110 /* Set locale now, so that initial error messages are localized properly.
1111 fixup_locale must wait until later, since it builds strings. */
1112 if (do_initial_setlocale
)
1113 setlocale (LC_ALL
, "");
1115 #ifdef EXTRA_INITIALIZE
1119 inhibit_window_system
= 0;
1121 /* Handle the -t switch, which specifies filename to use as terminal. */
1125 if (argmatch (argv
, argc
, "-t", "--terminal", 4, &term
, &skip_args
))
1130 result
= emacs_open (term
, O_RDWR
, 0);
1133 char *errstring
= strerror (errno
);
1134 fprintf (stderr
, "%s: %s: %s\n", argv
[0], term
, errstring
);
1140 fprintf (stderr
, "%s: %s: not a tty\n", argv
[0], term
);
1143 fprintf (stderr
, "Using %s\n", term
);
1144 #ifdef HAVE_WINDOW_SYSTEM
1145 inhibit_window_system
= 1; /* -t => -nw */
1152 /* Command line option --no-windows is deprecated and thus not mentioned
1153 in the manual and usage informations. */
1154 if (argmatch (argv
, argc
, "-nw", "--no-window-system", 6, NULL
, &skip_args
)
1155 || argmatch (argv
, argc
, "-nw", "--no-windows", 6, NULL
, &skip_args
))
1156 inhibit_window_system
= 1;
1158 /* Handle the -batch switch, which means don't do interactive display. */
1160 if (argmatch (argv
, argc
, "-batch", "--batch", 5, NULL
, &skip_args
))
1163 Vundo_outer_limit
= Qnil
;
1165 if (argmatch (argv
, argc
, "-script", "--script", 3, &junk
, &skip_args
))
1167 noninteractive
= 1; /* Set batch mode. */
1168 /* Convert --script to --scriptload, un-skip it, and sort again
1169 so that it will be handled in proper sequence. */
1170 argv
[skip_args
- 1] = "-scriptload";
1172 sort_args (argc
, argv
);
1175 /* Handle the --help option, which gives a usage message. */
1176 if (argmatch (argv
, argc
, "-help", "--help", 3, NULL
, &skip_args
))
1178 printf (USAGE1
, argv
[0], USAGE2
);
1180 printf (USAGE4
, bug_reporting_address ());
1184 if (! noninteractive
)
1189 inherited_pgroup
= EMACS_GETPGRP (0);
1190 setpgrp (0, getpid ());
1193 #if defined (USG5) && defined (INTERRUPT_INPUT)
1201 /* Don't catch SIGHUP if dumping. */
1208 sigblock (sigmask (SIGHUP
));
1209 /* In --batch mode, don't catch SIGHUP if already ignored.
1210 That makes nohup work. */
1211 if (! noninteractive
1212 || signal (SIGHUP
, SIG_IGN
) != SIG_IGN
)
1213 signal (SIGHUP
, fatal_error_signal
);
1214 sigunblock (sigmask (SIGHUP
));
1219 ! noninteractive
|| initialized
1225 /* Don't catch these signals in batch mode if dumping.
1226 On some machines, this sets static data that would make
1227 signal fail to work right when the dumped Emacs is run. */
1228 signal (SIGQUIT
, fatal_error_signal
);
1229 signal (SIGILL
, fatal_error_signal
);
1230 signal (SIGTRAP
, fatal_error_signal
);
1232 signal (SIGUSR1
, handle_USR1_signal
);
1234 signal (SIGUSR2
, handle_USR2_signal
);
1238 signal (SIGABRT
, fatal_error_signal
);
1241 signal (SIGHWE
, fatal_error_signal
);
1244 signal (SIGPRE
, fatal_error_signal
);
1247 signal (SIGORE
, fatal_error_signal
);
1250 signal (SIGUME
, fatal_error_signal
);
1253 signal (SIGDLK
, fatal_error_signal
);
1256 signal (SIGCPULIM
, fatal_error_signal
);
1259 /* This is missing on some systems - OS/2, for example. */
1260 signal (SIGIOT
, fatal_error_signal
);
1263 signal (SIGEMT
, fatal_error_signal
);
1265 signal (SIGFPE
, fatal_error_signal
);
1267 signal (SIGBUS
, fatal_error_signal
);
1269 signal (SIGSEGV
, fatal_error_signal
);
1271 signal (SIGSYS
, fatal_error_signal
);
1273 signal (SIGTERM
, fatal_error_signal
);
1275 signal (SIGXCPU
, fatal_error_signal
);
1278 signal (SIGXFSZ
, fatal_error_signal
);
1279 #endif /* SIGXFSZ */
1282 /* This just means available memory is getting low. */
1283 signal (SIGDANGER
, memory_warning_signal
);
1287 /* 20 is SIGCHLD, 21 is SIGTTIN, 22 is SIGTTOU. */
1288 signal (SIGXCPU
, fatal_error_signal
);
1290 signal (SIGIOINT
, fatal_error_signal
);
1292 signal (SIGGRANT
, fatal_error_signal
);
1293 signal (SIGRETRACT
, fatal_error_signal
);
1294 signal (SIGSOUND
, fatal_error_signal
);
1295 signal (SIGMSG
, fatal_error_signal
);
1299 noninteractive1
= noninteractive
;
1301 /* Perform basic initializations (not merely interning symbols). */
1308 init_character_once ();
1309 init_charset_once ();
1310 init_coding_once ();
1311 init_syntax_once (); /* Create standard syntax table. */
1312 init_category_once (); /* Create standard category table. */
1313 /* Must be done before init_buffer. */
1314 init_casetab_once ();
1315 init_buffer_once (); /* Create buffer table and some buffers. */
1316 init_minibuf_once (); /* Create list of minibuffers. */
1317 /* Must precede init_window_once. */
1319 /* Call syms_of_xfaces before init_window_once because that
1320 function creates Vterminal_frame. Termcap frames now use
1321 faces, and the face implementation uses some symbols as
1324 /* Call syms_of_keyboard before init_window_once because
1325 keyboard sets up symbols that include some face names that
1326 the X support will want to use. This can happen when
1327 CANNOT_DUMP is defined. */
1328 syms_of_keyboard ();
1331 /* init_window_once calls make_terminal_frame which on Mac OS
1332 creates a full-fledge output_mac type frame. This does not
1333 work correctly before syms_of_textprop, syms_of_macfns,
1334 syms_of_ccl, syms_of_fontset, syms_of_xterm, syms_of_search,
1335 syms_of_frame, mac_term_init, and init_keyboard have already
1337 syms_of_textprop ();
1343 syms_of_macselect ();
1349 mac_term_init (build_string ("Mac"), NULL
, NULL
);
1353 init_window_once (); /* Init the window system. */
1354 init_fileio_once (); /* Must precede any path manipulation. */
1355 #ifdef HAVE_WINDOW_SYSTEM
1356 init_fringe_once (); /* Swap bitmaps if necessary. */
1357 #endif /* HAVE_WINDOW_SYSTEM */
1362 if (do_initial_setlocale
)
1365 Vsystem_messages_locale
= Vprevious_system_messages_locale
;
1366 Vsystem_time_locale
= Vprevious_system_time_locale
;
1371 #ifdef CLASH_DETECTION
1377 running_asynch_code
= 0;
1379 /* Handle --unibyte and the EMACS_UNIBYTE envvar,
1380 but not while dumping. */
1383 int inhibit_unibyte
= 0;
1385 /* --multibyte overrides EMACS_UNIBYTE. */
1386 if (argmatch (argv
, argc
, "-no-unibyte", "--no-unibyte", 4, NULL
, &skip_args
)
1387 || argmatch (argv
, argc
, "-multibyte", "--multibyte", 4, NULL
, &skip_args
)
1388 /* Ignore EMACS_UNIBYTE before dumping. */
1389 || (!initialized
&& noninteractive
))
1390 inhibit_unibyte
= 1;
1392 /* --unibyte requests that we set up to do everything with single-byte
1393 buffers and strings. We need to handle this before calling
1394 init_lread, init_editfns and other places that generate Lisp strings
1395 from text in the environment. */
1396 /* Actually this shouldn't be needed as of 20.4 in a generally
1397 unibyte environment. As handa says, environment values
1398 aren't now decoded; also existing buffers are now made
1399 unibyte during startup if .emacs sets unibyte. Tested with
1400 8-bit data in environment variables and /etc/passwd, setting
1401 unibyte and Latin-1 in .emacs. -- Dave Love */
1402 if (argmatch (argv
, argc
, "-unibyte", "--unibyte", 4, NULL
, &skip_args
)
1403 || argmatch (argv
, argc
, "-no-multibyte", "--no-multibyte", 4, NULL
, &skip_args
)
1404 || (getenv ("EMACS_UNIBYTE") && !inhibit_unibyte
))
1406 Lisp_Object old_log_max
;
1407 Lisp_Object symbol
, tail
;
1409 symbol
= intern ("default-enable-multibyte-characters");
1410 Fset (symbol
, Qnil
);
1414 /* Erase pre-dump messages in *Messages* now so no abort. */
1415 old_log_max
= Vmessage_log_max
;
1416 XSETFASTINT (Vmessage_log_max
, 0);
1417 message_dolog ("", 0, 1, 0);
1418 Vmessage_log_max
= old_log_max
;
1421 for (tail
= Vbuffer_alist
; CONSP (tail
);
1426 buffer
= Fcdr (XCAR (tail
));
1427 /* Make a multibyte buffer unibyte. */
1428 if (BUF_Z_BYTE (XBUFFER (buffer
)) > BUF_Z (XBUFFER (buffer
)))
1430 struct buffer
*current
= current_buffer
;
1432 set_buffer_temp (XBUFFER (buffer
));
1433 Fset_buffer_multibyte (Qnil
);
1434 set_buffer_temp (current
);
1441 = argmatch (argv
, argc
, "-nl", "--no-loadup", 6, NULL
, &skip_args
);
1443 #ifdef USE_FONT_BACKEND
1444 enable_font_backend
= 0;
1445 if (argmatch (argv
, argc
, "-enable-font-backend", "--enable-font-backend",
1446 4, NULL
, &skip_args
))
1447 enable_font_backend
= 1;
1448 #endif /* USE_FONT_BACKEND */
1450 #ifdef HAVE_X_WINDOWS
1451 /* Stupid kludge to catch command-line display spec. We can't
1452 handle this argument entirely in window system dependent code
1453 because we don't even know which window system dependent code
1454 to run until we've recognized this argument. */
1456 char *displayname
= 0;
1457 int count_before
= skip_args
;
1459 /* Skip any number of -d options, but only use the last one. */
1462 int count_before_this
= skip_args
;
1464 if (argmatch (argv
, argc
, "-d", "--display", 3, &displayname
, &skip_args
))
1466 else if (argmatch (argv
, argc
, "-display", 0, 3, &displayname
, &skip_args
))
1471 count_before
= count_before_this
;
1474 /* If we have the form --display=NAME,
1475 convert it into -d name.
1476 This requires inserting a new element into argv. */
1477 if (displayname
!= 0 && skip_args
- count_before
== 1)
1479 char **new = (char **) xmalloc (sizeof (char *) * (argc
+ 2));
1482 for (j
= 0; j
< count_before
+ 1; j
++)
1484 new[count_before
+ 1] = "-d";
1485 new[count_before
+ 2] = displayname
;
1486 for (j
= count_before
+ 2; j
<argc
; j
++)
1487 new[j
+ 1] = argv
[j
];
1491 /* Change --display to -d, when its arg is separate. */
1492 else if (displayname
!= 0 && skip_args
> count_before
1493 && argv
[count_before
+ 1][1] == '-')
1494 argv
[count_before
+ 1] = "-d";
1496 /* Don't actually discard this arg. */
1497 skip_args
= count_before
;
1501 /* argmatch must not be used after here,
1502 except when bulding temacs
1503 because the -d argument has not been skipped in skip_args. */
1506 /* Call early 'cause init_environment needs it. */
1508 /* Set defaults for several environment variables. */
1510 init_environment (argc
, argv
, skip_args
);
1517 /* Initialize environment from registry settings. */
1518 init_environment (argv
);
1519 init_ntproc (); /* must precede init_editfns. */
1522 #if defined (MAC_OSX) && defined (HAVE_CARBON)
1524 init_mac_osx_environment ();
1527 /* egetenv is a pretty low-level facility, which may get called in
1528 many circumstances; it seems flimsy to put off initializing it
1529 until calling init_callproc. */
1530 set_process_environment ();
1531 /* AIX crashes are reported in system versions 3.2.3 and 3.2.4
1532 if this is not done. Do it after set_process_environment so that we
1533 don't pollute Vprocess_environment. */
1534 /* Setting LANG here will defeat the startup locale processing... */
1539 init_buffer (); /* Init default directory of main buffer. */
1541 init_callproc_1 (); /* Must precede init_cmdargs and init_sys_modes. */
1542 init_cmdargs (argc
, argv
, skip_args
); /* Must precede init_lread. */
1546 /* Erase any pre-dump messages in the message log, to avoid confusion. */
1547 Lisp_Object old_log_max
;
1548 old_log_max
= Vmessage_log_max
;
1549 XSETFASTINT (Vmessage_log_max
, 0);
1550 message_dolog ("", 0, 1, 0);
1551 Vmessage_log_max
= old_log_max
;
1554 init_callproc (); /* Must follow init_cmdargs but not init_sys_modes. */
1557 /* Intern the names of all standard functions and variables;
1558 define standard keys. */
1562 /* The basic levels of Lisp must come first. */
1563 /* And data must come first of all
1564 for the sake of symbols like error-message. */
1566 /* Called before init_window_once for Mac OS Classic. */
1575 syms_of_floatfns ();
1579 syms_of_bytecode ();
1581 syms_of_casefiddle ();
1583 syms_of_callproc ();
1584 syms_of_category ();
1586 /* Called before init_window_once for Mac OS Classic. */
1589 syms_of_character ();
1592 #ifndef NO_DIR_LIBRARY
1594 #endif /* not NO_DIR_LIBRARY */
1600 syms_of_coding (); /* This should be after syms_of_fileio. */
1601 #ifdef CLASH_DETECTION
1602 syms_of_filelock ();
1603 #endif /* CLASH_DETECTION */
1612 /* Called before init_window_once for Mac OS Classic. */
1623 /* Called before init_window_once for Mac OS Classic. */
1624 syms_of_textprop ();
1626 syms_of_composite ();
1632 #endif /* WINDOWSNT */
1635 #ifdef HAVE_WINDOW_SYSTEM
1636 #ifdef USE_FONT_BACKEND
1638 #endif /* USE_FONT_BACKEND */
1641 #endif /* HAVE_WINDOW_SYSTEM */
1642 #ifdef HAVE_X_WINDOWS
1652 #endif /* HAVE_X_WINDOWS */
1656 /* Called before init_window_once for Mac OS Classic. */
1664 syms_of_w32select ();
1667 #endif /* HAVE_NTGUI */
1669 #if defined (MAC_OSX) && defined (HAVE_CARBON)
1673 syms_of_macselect ();
1675 #endif /* MAC_OSX && HAVE_CARBON */
1685 keys_of_casefiddle ();
1688 keys_of_keyboard ();
1695 /* Initialization that must be done even if the global variable
1696 initialized is non zero. */
1698 globals_of_w32fns ();
1699 globals_of_w32menu ();
1700 globals_of_w32select ();
1701 #endif /* HAVE_NTGUI */
1706 if (!noninteractive
)
1709 init_vms_input ();/* init_display calls get_frame_size, that needs this. */
1711 init_display (); /* Determine terminal type. init_sys_modes uses results. */
1714 /* Called before init_window_once for Mac OS Classic. */
1715 init_keyboard (); /* This too must precede init_sys_modes. */
1718 init_vmsproc (); /* And this too. */
1720 init_sys_modes (); /* Init system terminal modes (RAW or CBREAK, etc.). */
1723 #ifdef HAVE_WINDOW_SYSTEM
1726 #endif /* HAVE_WINDOW_SYSTEM */
1742 /* Handle -l loadup, args passed by Makefile. */
1743 if (argmatch (argv
, argc
, "-l", "--load", 3, &file
, &skip_args
))
1744 Vtop_level
= Fcons (intern ("load"),
1745 Fcons (build_string (file
), Qnil
));
1746 /* Unless next switch is -nl, load "loadup.el" first thing. */
1748 Vtop_level
= Fcons (intern ("load"),
1749 Fcons (build_string ("loadup.el"), Qnil
));
1756 /* If the execution TZ happens to be the same as the dump TZ,
1757 change it to some other value and then change it back,
1758 to force the underlying implementation to reload the TZ info.
1759 This is needed on implementations that load TZ info from files,
1760 since the TZ file contents may differ between dump and execution. */
1761 char *tz
= getenv ("TZ");
1762 if (tz
&& !strcmp (tz
, dump_tz
))
1772 /* Set up for profiling. This is known to work on FreeBSD,
1773 GNU/Linux and MinGW. It might work on some other systems too.
1774 Give it a try and tell us if it works on your system. To compile
1775 for profiling use something like:
1776 `make CFLAGS="-pg -g -O -DPROFILING=1'. */
1777 #if defined (__FreeBSD__) || defined (GNU_LINUX) || defined(__MINGW32__)
1781 extern void _mcleanup ();
1783 extern unsigned char etext
asm ("etext");
1787 extern void safe_bcopy ();
1788 extern void dump_opcode_frequencies ();
1791 /* This uses safe_bcopy because that function comes first in the
1792 Emacs executable. It might be better to use something that
1793 gives the start of the text segment, but start_of_text is not
1794 defined on all systems now. */
1795 monstartup (safe_bcopy
, &etext
);
1804 #ifdef LOCALTIME_CACHE
1805 /* Some versions of localtime have a bug. They cache the value of the time
1806 zone rather than looking it up every time. Since localtime() is
1807 called to bolt the undumping time into the undumped emacs, this
1808 results in localtime ignoring the TZ environment variable.
1809 This flushes the new TZ value into localtime. */
1811 #endif /* defined (LOCALTIME_CACHE) */
1813 /* Enter editor command loop. This never returns. */
1819 /* Sort the args so we can find the most important ones
1820 at the beginning of argv. */
1822 /* First, here's a table of all the standard options. */
1824 struct standard_args
1832 struct standard_args standard_args
[] =
1834 { "-version", "--version", 150, 0 },
1836 { "-nl", "--no-shared-memory", 140, 0 },
1839 { "-map", "--map-data", 130, 0 },
1841 { "-t", "--terminal", 120, 1 },
1842 { "-nw", "--no-window-system", 110, 0 },
1843 { "-nw", "--no-windows", 110, 0 },
1844 { "-batch", "--batch", 100, 0 },
1845 { "-script", "--script", 100, 1 },
1846 { "-help", "--help", 90, 0 },
1847 { "-no-unibyte", "--no-unibyte", 83, 0 },
1848 { "-multibyte", "--multibyte", 82, 0 },
1849 { "-unibyte", "--unibyte", 81, 0 },
1850 { "-no-multibyte", "--no-multibyte", 80, 0 },
1851 { "-nl", "--no-loadup", 70, 0 },
1852 { "-enable-font-backend", "--enable-font-backend", 65, 0 },
1853 /* -d must come last before the options handled in startup.el. */
1854 { "-d", "--display", 60, 1 },
1855 { "-display", 0, 60, 1 },
1856 /* Now for the options handled in startup.el. */
1857 { "-Q", "--quick", 55, 0 },
1858 { "-quick", 0, 55, 0 },
1859 { "-q", "--no-init-file", 50, 0 },
1860 { "-no-init-file", 0, 50, 0 },
1861 { "-no-site-file", "--no-site-file", 40, 0 },
1862 { "-no-splash", "--no-splash", 40, 0 },
1863 { "-u", "--user", 30, 1 },
1864 { "-user", 0, 30, 1 },
1865 { "-debug-init", "--debug-init", 20, 0 },
1866 { "-nbi", "--no-bitmap-icon", 15, 0 },
1867 { "-iconic", "--iconic", 15, 0 },
1868 { "-D", "--basic-display", 12, 0},
1869 { "-basic-display", 0, 12, 0},
1870 { "-bg", "--background-color", 10, 1 },
1871 { "-background", 0, 10, 1 },
1872 { "-fg", "--foreground-color", 10, 1 },
1873 { "-foreground", 0, 10, 1 },
1874 { "-bd", "--border-color", 10, 1 },
1875 { "-bw", "--border-width", 10, 1 },
1876 { "-ib", "--internal-border", 10, 1 },
1877 { "-ms", "--mouse-color", 10, 1 },
1878 { "-cr", "--cursor-color", 10, 1 },
1879 { "-nbc", "--no-blinking-cursor", 10, 0 },
1880 { "-fn", "--font", 10, 1 },
1881 { "-font", 0, 10, 1 },
1882 { "-fs", "--fullscreen", 10, 0 },
1883 { "-fw", "--fullwidth", 10, 0 },
1884 { "-fh", "--fullheight", 10, 0 },
1885 { "-g", "--geometry", 10, 1 },
1886 { "-geometry", 0, 10, 1 },
1887 { "-T", "--title", 10, 1 },
1888 { "-title", 0, 10, 1 },
1889 { "-name", "--name", 10, 1 },
1890 { "-xrm", "--xrm", 10, 1 },
1891 { "-r", "--reverse-video", 5, 0 },
1893 { "-reverse", 0, 5, 0 },
1894 { "-hb", "--horizontal-scroll-bars", 5, 0 },
1895 { "-vb", "--vertical-scroll-bars", 5, 0 },
1896 { "-color", "--color", 5, 0},
1897 /* These have the same priority as ordinary file name args,
1898 so they are not reordered with respect to those. */
1899 { "-L", "--directory", 0, 1 },
1900 { "-directory", 0, 0, 1 },
1901 { "-l", "--load", 0, 1 },
1902 { "-load", 0, 0, 1 },
1903 { "-scriptload", "--scriptload", 0, 1 },
1904 { "-f", "--funcall", 0, 1 },
1905 { "-funcall", 0, 0, 1 },
1906 { "-eval", "--eval", 0, 1 },
1907 { "-execute", "--execute", 0, 1 },
1908 { "-find-file", "--find-file", 0, 1 },
1909 { "-visit", "--visit", 0, 1 },
1910 { "-file", "--file", 0, 1 },
1911 { "-insert", "--insert", 0, 1 },
1912 /* This should be processed after ordinary file name args and the like. */
1913 { "-kill", "--kill", -10, 0 },
1916 /* Reorder the elements of ARGV (assumed to have ARGC elements)
1917 so that the highest priority ones come first.
1918 Do not change the order of elements of equal priority.
1919 If an option takes an argument, keep it and its argument together.
1921 If an option that takes no argument appears more
1922 than once, eliminate all but one copy of it. */
1925 sort_args (argc
, argv
)
1929 char **new = (char **) xmalloc (sizeof (char *) * argc
);
1930 /* For each element of argv,
1931 the corresponding element of options is:
1932 0 for an option that takes no arguments,
1933 1 for an option that takes one argument, etc.
1934 -1 for an ordinary non-option argument. */
1935 int *options
= (int *) xmalloc (sizeof (int) * argc
);
1936 int *priority
= (int *) xmalloc (sizeof (int) * argc
);
1938 int incoming_used
= 1;
1942 /* Categorize all the options,
1943 and figure out which argv elts are option arguments. */
1944 for (from
= 1; from
< argc
; from
++)
1948 if (argv
[from
][0] == '-')
1953 /* If we have found "--", don't consider
1954 any more arguments as options. */
1955 if (argv
[from
][1] == '-' && argv
[from
][2] == 0)
1957 /* Leave the "--", and everything following it, at the end. */
1958 for (; from
< argc
; from
++)
1960 priority
[from
] = -100;
1966 /* Look for a match with a known old-fashioned option. */
1967 for (i
= 0; i
< sizeof (standard_args
) / sizeof (standard_args
[0]); i
++)
1968 if (!strcmp (argv
[from
], standard_args
[i
].name
))
1970 options
[from
] = standard_args
[i
].nargs
;
1971 priority
[from
] = standard_args
[i
].priority
;
1972 if (from
+ standard_args
[i
].nargs
>= argc
)
1973 fatal ("Option `%s' requires an argument\n", argv
[from
]);
1974 from
+= standard_args
[i
].nargs
;
1978 /* Look for a match with a known long option.
1979 MATCH is -1 if no match so far, -2 if two or more matches so far,
1980 >= 0 (the table index of the match) if just one match so far. */
1981 if (argv
[from
][1] == '-')
1984 thislen
= strlen (argv
[from
]);
1985 equals
= index (argv
[from
], '=');
1987 thislen
= equals
- argv
[from
];
1990 i
< sizeof (standard_args
) / sizeof (standard_args
[0]); i
++)
1991 if (standard_args
[i
].longname
1992 && !strncmp (argv
[from
], standard_args
[i
].longname
,
2001 /* If we found exactly one match, use that. */
2004 options
[from
] = standard_args
[match
].nargs
;
2005 priority
[from
] = standard_args
[match
].priority
;
2006 /* If --OPTION=VALUE syntax is used,
2007 this option uses just one argv element. */
2010 if (from
+ options
[from
] >= argc
)
2011 fatal ("Option `%s' requires an argument\n", argv
[from
]);
2012 from
+= options
[from
];
2019 /* Copy the arguments, in order of decreasing priority, to NEW. */
2021 while (incoming_used
< argc
)
2024 int best_priority
= -9999;
2026 /* Find the highest priority remaining option.
2027 If several have equal priority, take the first of them. */
2028 for (from
= 1; from
< argc
; from
++)
2030 if (argv
[from
] != 0 && priority
[from
] > best_priority
)
2032 best_priority
= priority
[from
];
2035 /* Skip option arguments--they are tied to the options. */
2036 if (options
[from
] > 0)
2037 from
+= options
[from
];
2043 /* Copy the highest priority remaining option, with its args, to NEW.
2044 Unless it is a duplicate of the previous one. */
2045 if (! (options
[best
] == 0
2046 && ! strcmp (new[to
- 1], argv
[best
])))
2048 new[to
++] = argv
[best
];
2049 for (i
= 0; i
< options
[best
]; i
++)
2050 new[to
++] = argv
[best
+ i
+ 1];
2053 incoming_used
+= 1 + (options
[best
] > 0 ? options
[best
] : 0);
2055 /* Clear out this option in ARGV. */
2057 for (i
= 0; i
< options
[best
]; i
++)
2058 argv
[best
+ i
+ 1] = 0;
2061 /* If duplicate options were deleted, fill up extra space with null ptrs. */
2065 bcopy (new, argv
, sizeof (char *) * argc
);
2072 DEFUN ("kill-emacs", Fkill_emacs
, Skill_emacs
, 0, 1, "P",
2073 doc
: /* Exit the Emacs job and kill it.
2074 If ARG is an integer, return ARG as the exit program code.
2075 If ARG is a string, stuff it as keyboard input.
2077 The value of `kill-emacs-hook', if not void,
2078 is a list of functions (of no args),
2079 all of which are called before Emacs is actually killed. */)
2083 struct gcpro gcpro1
;
2090 if (!NILP (Vrun_hooks
) && !noninteractive
)
2091 call1 (Vrun_hooks
, intern ("kill-emacs-hook"));
2095 /* Is it really necessary to do this deassign
2096 when we are going to exit anyway? */
2101 shut_down_emacs (0, 0, STRINGP (arg
) ? arg
: Qnil
);
2103 /* If we have an auto-save list file,
2104 kill it because we are exiting Emacs deliberately (not crashing).
2105 Do it after shut_down_emacs, which does an auto-save. */
2106 if (STRINGP (Vauto_save_list_file_name
))
2107 unlink (SDATA (Vauto_save_list_file_name
));
2109 exit (INTEGERP (arg
) ? XINT (arg
) : EXIT_SUCCESS
);
2115 /* Perform an orderly shutdown of Emacs. Autosave any modified
2116 buffers, kill any child processes, clean up the terminal modes (if
2117 we're in the foreground), and other stuff like that. Don't perform
2118 any redisplay; this may be called when Emacs is shutting down in
2119 the background, or after its X connection has died.
2121 If SIG is a signal number, print a message for it.
2123 This is called by fatal signal handlers, X protocol error handlers,
2127 shut_down_emacs (sig
, no_x
, stuff
)
2131 /* Prevent running of hooks from now on. */
2134 /* Don't update display from now on. */
2135 Vinhibit_redisplay
= Qt
;
2137 /* If we are controlling the terminal, reset terminal modes. */
2138 #ifdef EMACS_HAVE_TTY_PGRP
2140 int pgrp
= EMACS_GETPGRP (0);
2143 if (EMACS_GET_TTY_PGRP (0, &tpgrp
) != -1
2148 if (sig
&& sig
!= SIGTERM
)
2149 fprintf (stderr
, "Fatal error (%d)", sig
);
2157 stuff_buffered_input (stuff
);
2160 inhibit_sentinels
= 1;
2162 kill_buffer_processes (Qnil
);
2163 Fdo_auto_save (Qt
, Qnil
);
2165 #ifdef CLASH_DETECTION
2166 unlock_all_files ();
2170 kill_vms_processes ();
2173 #if 0 /* This triggers a bug in XCloseDisplay and is not needed. */
2174 #ifdef HAVE_X_WINDOWS
2175 /* It's not safe to call intern here. Maybe we are crashing. */
2176 if (!noninteractive
&& SYMBOLP (Vwindow_system
)
2177 && SCHARS (SYMBOL_NAME (Vwindow_system
)) == 1
2178 && SREF (SYMBOL_NAME (Vwindow_system
), 0) == 'x'
2180 Fx_close_current_connection ();
2181 #endif /* HAVE_X_WINDOWS */
2185 /* There is a tendency for a SIGIO signal to arrive within exit,
2186 and cause a SIGHUP because the input descriptor is already closed. */
2188 signal (SIGIO
, SIG_IGN
);
2195 /* Do this only if terminating normally, we want glyph matrices
2196 etc. in a core dump. */
2197 if (sig
== 0 || sig
== SIGTERM
)
2199 check_glyph_memory ();
2200 check_message_stack ();
2214 DEFUN ("dump-emacs-data", Fdump_emacs_data
, Sdump_emacs_data
, 1, 1, 0,
2215 doc
: /* Dump current state of Emacs into data file FILENAME.
2216 This function exists on systems that use HAVE_SHM. */)
2218 Lisp_Object filename
;
2220 extern char my_edata
[];
2224 CHECK_STRING (filename
);
2225 filename
= Fexpand_file_name (filename
, Qnil
);
2228 Vpurify_flag
= Qnil
;
2231 /* Tell malloc where start of impure now is. */
2232 /* Also arrange for warnings when nearly out of space. */
2233 #ifndef SYSTEM_MALLOC
2234 memory_warnings (my_edata
, malloc_warning
);
2236 map_out_data (SDATA (filename
));
2243 #else /* not HAVE_SHM */
2245 DEFUN ("dump-emacs", Fdump_emacs
, Sdump_emacs
, 2, 2, 0,
2246 doc
: /* Dump current state of Emacs into executable file FILENAME.
2247 Take symbols from SYMFILE (presumably the file you executed to run Emacs).
2248 This is used in the file `loadup.el' when building Emacs.
2250 You must run Emacs in batch mode in order to dump it. */)
2252 Lisp_Object filename
, symfile
;
2254 extern char my_edata
[];
2257 int count
= SPECPDL_INDEX ();
2261 if (! noninteractive
)
2262 error ("Dumping Emacs works only in batch mode");
2265 if (heap_bss_diff
> MAX_HEAP_BSS_DIFF
)
2267 fprintf (stderr
, "**************************************************\n");
2268 fprintf (stderr
, "Warning: Your system has a gap between BSS and the\n");
2269 fprintf (stderr
, "heap (%lu byte). This usually means that exec-shield\n",
2271 fprintf (stderr
, "or something similar is in effect. The dump may\n");
2272 fprintf (stderr
, "fail because of this. See the section about \n");
2273 fprintf (stderr
, "exec-shield in etc/PROBLEMS for more information.\n");
2274 fprintf (stderr
, "**************************************************\n");
2276 #endif /* GNU_LINUX */
2278 /* Bind `command-line-processed' to nil before dumping,
2279 so that the dumped Emacs will process its command line
2280 and set up to work with X windows if appropriate. */
2281 symbol
= intern ("command-line-processed");
2282 specbind (symbol
, Qnil
);
2284 CHECK_STRING (filename
);
2285 filename
= Fexpand_file_name (filename
, Qnil
);
2286 if (!NILP (symfile
))
2288 CHECK_STRING (symfile
);
2289 if (SCHARS (symfile
))
2290 symfile
= Fexpand_file_name (symfile
, Qnil
);
2294 Vpurify_flag
= Qnil
;
2297 set_time_zone_rule (dump_tz
);
2298 #ifndef LOCALTIME_CACHE
2299 /* Force a tz reload, since set_time_zone_rule doesn't. */
2306 mapout_data (SDATA (filename
));
2308 /* Tell malloc where start of impure now is. */
2309 /* Also arrange for warnings when nearly out of space. */
2310 #ifndef SYSTEM_MALLOC
2312 /* On Windows, this was done before dumping, and that once suffices.
2313 Meanwhile, my_edata is not valid on Windows. */
2314 memory_warnings (my_edata
, malloc_warning
);
2315 #endif /* not WINDOWSNT */
2317 #if !defined (SYSTEM_MALLOC) && defined (HAVE_GTK_AND_PTHREAD) && !defined SYNC_INPUT
2318 /* Pthread may call malloc before main, and then we will get an endless
2319 loop, because pthread_self (see alloc.c) calls malloc the first time
2320 it is called on some systems. */
2321 reset_malloc_hooks ();
2323 #ifdef DOUG_LEA_MALLOC
2324 malloc_state_ptr
= malloc_get_state ();
2327 #ifdef USE_MMAP_FOR_BUFFERS
2330 unexec (SDATA (filename
),
2331 !NILP (symfile
) ? SDATA (symfile
) : 0, my_edata
, 0, 0);
2332 #ifdef USE_MMAP_FOR_BUFFERS
2335 #ifdef DOUG_LEA_MALLOC
2336 free (malloc_state_ptr
);
2338 #endif /* not VMS */
2342 return unbind_to (count
, Qnil
);
2345 #endif /* not HAVE_SHM */
2347 #endif /* not CANNOT_DUMP */
2350 /* Recover from setlocale (LC_ALL, ""). */
2354 /* The Emacs Lisp reader needs LC_NUMERIC to be "C",
2355 so that numbers are read and printed properly for Emacs Lisp. */
2356 setlocale (LC_NUMERIC
, "C");
2359 /* Set system locale CATEGORY, with previous locale *PLOCALE, to
2362 synchronize_locale (category
, plocale
, desired_locale
)
2364 Lisp_Object
*plocale
;
2365 Lisp_Object desired_locale
;
2367 if (! EQ (*plocale
, desired_locale
))
2369 *plocale
= desired_locale
;
2370 setlocale (category
, (STRINGP (desired_locale
)
2371 ? (char *) SDATA (desired_locale
)
2376 /* Set system time locale to match Vsystem_time_locale, if possible. */
2378 synchronize_system_time_locale ()
2380 synchronize_locale (LC_TIME
, &Vprevious_system_time_locale
,
2381 Vsystem_time_locale
);
2384 /* Set system messages locale to match Vsystem_messages_locale, if
2387 synchronize_system_messages_locale ()
2390 synchronize_locale (LC_MESSAGES
, &Vprevious_system_messages_locale
,
2391 Vsystem_messages_locale
);
2394 #endif /* HAVE_SETLOCALE */
2401 decode_env_path (evarname
, defalt
)
2402 char *evarname
, *defalt
;
2404 register char *path
, *p
;
2405 Lisp_Object lpath
, element
, tem
;
2407 /* It's okay to use getenv here, because this function is only used
2408 to initialize variables when Emacs starts up, and isn't called
2411 path
= (char *) getenv (evarname
);
2417 /* Ensure values from the environment use the proper directory separator. */
2420 p
= alloca (strlen (path
) + 1);
2424 if ('/' == DIRECTORY_SEP
)
2425 dostounix_filename (path
);
2427 unixtodos_filename (path
);
2433 p
= index (path
, SEPCHAR
);
2434 if (!p
) p
= path
+ strlen (path
);
2435 element
= (p
- path
? make_string (path
, p
- path
)
2436 : build_string ("."));
2438 /* Add /: to the front of the name
2439 if it would otherwise be treated as magic. */
2440 tem
= Ffind_file_name_handler (element
, Qt
);
2442 /* However, if the handler says "I'm safe",
2443 don't bother adding /:. */
2447 prop
= Fget (tem
, intern ("safe-magic"));
2453 element
= concat2 (build_string ("/:"), element
);
2455 lpath
= Fcons (element
, lpath
);
2461 return Fnreverse (lpath
);
2467 Qfile_name_handler_alist
= intern ("file-name-handler-alist");
2468 staticpro (&Qfile_name_handler_alist
);
2472 defsubr (&Sdump_emacs_data
);
2474 defsubr (&Sdump_emacs
);
2478 defsubr (&Skill_emacs
);
2480 defsubr (&Sinvocation_name
);
2481 defsubr (&Sinvocation_directory
);
2483 DEFVAR_LISP ("command-line-args", &Vcommand_line_args
,
2484 doc
: /* Args passed by shell to Emacs, as a list of strings.
2485 Many arguments are deleted from the list as they are processed. */);
2487 DEFVAR_LISP ("system-type", &Vsystem_type
,
2488 doc
: /* Value is symbol indicating type of operating system you are using.
2490 `gnu/linux' compiled for a GNU/Linux system.
2491 `darwin' compiled for Darwin (GNU-Darwin, Mac OS X, ...).
2492 `macos' compiled for Mac OS 9.
2493 `ms-dos' compiled as an MS-DOS application.
2494 `windows-nt' compiled as a native W32 application.
2495 `cygwin' compiled using the Cygwin library.
2496 `vax-vms' or `axp-vms': compiled for a (Open)VMS system.
2497 Anything else indicates some sort of Unix system. */);
2498 Vsystem_type
= intern (SYSTEM_TYPE
);
2500 DEFVAR_LISP ("system-configuration", &Vsystem_configuration
,
2501 doc
: /* Value is string indicating configuration Emacs was built for.
2502 On MS-Windows, the value reflects the OS flavor and version on which
2503 Emacs is running. */);
2504 Vsystem_configuration
= build_string (EMACS_CONFIGURATION
);
2506 DEFVAR_LISP ("system-configuration-options", &Vsystem_configuration_options
,
2507 doc
: /* String containing the configuration options Emacs was built with. */);
2508 Vsystem_configuration_options
= build_string (EMACS_CONFIG_OPTIONS
);
2510 DEFVAR_BOOL ("noninteractive", &noninteractive1
,
2511 doc
: /* Non-nil means Emacs is running without interactive terminal. */);
2513 DEFVAR_LISP ("kill-emacs-hook", &Vkill_emacs_hook
,
2514 doc
: /* Hook to be run when kill-emacs is called.
2515 Since `kill-emacs' may be invoked when the terminal is disconnected (or
2516 in other similar situations), functions placed on this hook should not
2517 expect to be able to interact with the user. To ask for confirmation,
2518 see `kill-emacs-query-functions' instead.
2520 The hook is not run in batch mode, i.e., if `noninteractive' is non-nil. */);
2521 Vkill_emacs_hook
= Qnil
;
2523 empty_string
= build_string ("");
2524 staticpro (&empty_string
);
2526 DEFVAR_INT ("emacs-priority", &emacs_priority
,
2527 doc
: /* Priority for Emacs to run at.
2528 This value is effective only if set before Emacs is dumped,
2529 and only if the Emacs executable is installed with setuid to permit
2530 it to change priority. (Emacs sets its uid back to the real uid.)
2531 Currently, you need to define SET_EMACS_PRIORITY in `config.h'
2532 before you compile Emacs, to enable the code for this feature. */);
2535 DEFVAR_LISP ("path-separator", &Vpath_separator
,
2536 doc
: /* The directory separator in search paths, as a string. */);
2539 Vpath_separator
= make_string (&c
, 1);
2542 DEFVAR_LISP ("invocation-name", &Vinvocation_name
,
2543 doc
: /* The program name that was used to run Emacs.
2544 Any directory names are omitted. */);
2546 DEFVAR_LISP ("invocation-directory", &Vinvocation_directory
,
2547 doc
: /* The directory in which the Emacs executable was found, to run it.
2548 The value is nil if that directory's name is not known. */);
2550 DEFVAR_LISP ("installation-directory", &Vinstallation_directory
,
2551 doc
: /* A directory within which to look for the `lib-src' and `etc' directories.
2552 This is non-nil when we can't find those directories in their standard
2553 installed locations, but we can find them
2554 near where the Emacs executable was found. */);
2555 Vinstallation_directory
= Qnil
;
2557 DEFVAR_LISP ("system-messages-locale", &Vsystem_messages_locale
,
2558 doc
: /* System locale for messages. */);
2559 Vsystem_messages_locale
= Qnil
;
2561 DEFVAR_LISP ("previous-system-messages-locale",
2562 &Vprevious_system_messages_locale
,
2563 doc
: /* Most recently used system locale for messages. */);
2564 Vprevious_system_messages_locale
= Qnil
;
2566 DEFVAR_LISP ("system-time-locale", &Vsystem_time_locale
,
2567 doc
: /* System locale for time. */);
2568 Vsystem_time_locale
= Qnil
;
2570 DEFVAR_LISP ("previous-system-time-locale", &Vprevious_system_time_locale
,
2571 doc
: /* Most recently used system locale for time. */);
2572 Vprevious_system_time_locale
= Qnil
;
2575 /* arch-tag: 7bfd356a-c720-4612-8ab6-aa4222931c2e
2576 (do not change this comment) */