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
;
807 char stack_bottom_variable
;
808 int do_initial_setlocale
;
813 #ifdef HAVE_SETRLIMIT
820 extern Lisp_Object
*stack_base
;
826 extern char my_endbss
[];
827 extern char *my_endbss_static
;
829 if (my_heap_start
== 0)
830 my_heap_start
= sbrk (0);
832 heap_bss_diff
= (char *)my_heap_start
- max (my_endbss
, my_endbss_static
);
835 #ifdef LINUX_SBRK_BUG
839 #ifdef RUN_TIME_REMAP
841 run_time_remap (argv
[0]);
846 unexec_init_emacs_zone ();
849 sort_args (argc
, argv
);
851 while (argv
[argc
]) argc
++;
853 if (argmatch (argv
, argc
, "-version", "--version", 3, NULL
, &skip_args
)
854 /* We don't know the version number unless this is a dumped Emacs.
855 So ignore --version otherwise. */
858 Lisp_Object tem
, tem2
;
859 tem
= Fsymbol_value (intern ("emacs-version"));
860 tem2
= Fsymbol_value (intern ("emacs-copyright"));
863 fprintf (stderr
, "Invalid value of `emacs-version'\n");
868 fprintf (stderr
, "Invalid value of `emacs-copyright'\n");
873 printf ("GNU Emacs %s\n", SDATA (tem
));
874 printf ("%s\n", SDATA(tem2
));
875 printf ("GNU Emacs comes with ABSOLUTELY NO WARRANTY.\n");
876 printf ("You may redistribute copies of Emacs\n");
877 printf ("under the terms of the GNU General Public License.\n");
878 printf ("For more information about these matters, ");
879 printf ("see the file named COPYING.\n");
884 #ifdef HAVE_PERSONALITY_LINUX32
885 /* See if there is a gap between the end of BSS and the heap.
886 In that case, set personality and exec ourself again. */
888 && (strcmp (argv
[argc
-1], "dump") == 0
889 || strcmp (argv
[argc
-1], "bootstrap") == 0)
890 && heap_bss_diff
> MAX_HEAP_BSS_DIFF
)
892 if (! getenv ("EMACS_HEAP_EXEC"))
894 /* Set this so we only do this once. */
895 putenv("EMACS_HEAP_EXEC=true");
897 /* A flag to turn off address randomization which is introduced
898 in linux kernel shipped with fedora core 4 */
899 #define ADD_NO_RANDOMIZE 0x0040000
900 personality (PER_LINUX32
| ADD_NO_RANDOMIZE
);
901 #undef ADD_NO_RANDOMIZE
903 execvp (argv
[0], argv
);
905 /* If the exec fails, try to dump anyway. */
909 #endif /* HAVE_PERSONALITY_LINUX32 */
912 /* Map in shared memory, if we are using that. */
914 if (argmatch (argv
, argc
, "-nl", "--no-shared-memory", 6, NULL
, &skip_args
))
917 /* The shared memory was just restored, which clobbered this. */
923 /* The shared memory was just restored, which clobbered this. */
930 extern int malloc_cookie
;
931 /* This helps out unexnext.c. */
933 if (malloc_jumpstart (malloc_cookie
) != 0)
934 printf ("malloc jumpstart failed!\n");
939 /* Skip process serial number passed in the form -psn_x_y as
940 command-line argument. The WindowServer adds this option when
941 Emacs is invoked from the Finder or by the `open' command. In
942 these cases, the working directory becomes `/', so we change it
943 to the user's home directory. */
944 if (argc
> skip_args
+ 1 && strncmp (argv
[skip_args
+1], "-psn_", 5) == 0)
946 chdir (getenv ("HOME"));
952 /* If -map specified, map the data file in. */
955 if (argmatch (argv
, argc
, "-map", "--map-data", 3, &file
, &skip_args
))
959 #ifdef LINK_CRTL_SHARE
960 #ifdef SHARABLE_LIB_BUG
961 /* Bletcherous shared libraries! */
963 stdin
= fdopen (0, "r");
965 stdout
= fdopen (1, "w");
967 stderr
= fdopen (2, "w");
970 #endif /* SHARABLE_LIB_BUG */
971 #endif /* LINK_CRTL_SHARE */
974 #if defined (HAVE_SETRLIMIT) && defined (RLIMIT_STACK)
975 /* Extend the stack space available.
976 Don't do that if dumping, since some systems (e.g. DJGPP)
977 might define a smaller stack limit at that time. */
980 && (!noninteractive
|| initialized
)
982 && !getrlimit (RLIMIT_STACK
, &rlim
))
985 extern size_t re_max_failures
;
986 /* Approximate the amount regex.c needs per unit of re_max_failures. */
987 int ratio
= 20 * sizeof (char *);
988 /* Then add 33% to cover the size of the smaller stacks that regex.c
989 successively allocates and discards, on its way to the maximum. */
991 /* Add in some extra to cover
992 what we're likely to use for other reasons. */
993 newlim
= re_max_failures
* ratio
+ 200000;
995 /* NetBSD (at least NetBSD 1.2G and former) has a bug in its
996 stack allocation routine for new process that the allocation
997 fails if stack limit is not on page boundary. So, round up the
998 new limit to page boundary. */
999 newlim
= (newlim
+ getpagesize () - 1) / getpagesize () * getpagesize();
1001 if (newlim
> rlim
.rlim_max
)
1003 newlim
= rlim
.rlim_max
;
1004 /* Don't let regex.c overflow the stack we have. */
1005 re_max_failures
= (newlim
- 200000) / ratio
;
1007 if (rlim
.rlim_cur
< newlim
)
1008 rlim
.rlim_cur
= newlim
;
1010 setrlimit (RLIMIT_STACK
, &rlim
);
1012 #endif /* HAVE_SETRLIMIT and RLIMIT_STACK */
1014 /* Record (approximately) where the stack begins. */
1015 stack_bottom
= &stack_bottom_variable
;
1017 #ifdef USG_SHARED_LIBRARIES
1019 brk ((void *)bss_end
);
1024 #ifndef SYSTEM_MALLOC
1025 /* Arrange to get warning messages as memory fills up. */
1026 memory_warnings (0, malloc_warning
);
1028 /* Call malloc at least once, to run the initial __malloc_hook.
1029 Also call realloc and free for consistency. */
1030 free (realloc (malloc (4), 4));
1033 /* Arrange to disable interrupt input inside malloc etc. */
1034 uninterrupt_malloc ();
1035 # endif /* not SYNC_INPUT */
1036 #endif /* not SYSTEM_MALLOC */
1038 #ifdef HAVE_GTK_AND_PTHREAD
1039 main_thread
= pthread_self ();
1040 #endif /* HAVE_GTK_AND_PTHREAD */
1042 #if defined (MSDOS) || defined (WINDOWSNT)
1043 /* We do all file input/output as binary files. When we need to translate
1044 newlines, we do that manually. */
1046 #endif /* MSDOS || WINDOWSNT */
1050 if (!isatty (fileno (stdin
)))
1051 setmode (fileno (stdin
), O_BINARY
);
1052 if (!isatty (fileno (stdout
)))
1055 setmode (fileno (stdout
), O_BINARY
);
1057 #else /* not __DJGPP__ >= 2 */
1058 (stdin
)->_flag
&= ~_IOTEXT
;
1059 (stdout
)->_flag
&= ~_IOTEXT
;
1060 (stderr
)->_flag
&= ~_IOTEXT
;
1061 #endif /* not __DJGPP__ >= 2 */
1064 #ifdef SET_EMACS_PRIORITY
1066 nice (emacs_priority
);
1068 #endif /* SET_EMACS_PRIORITY */
1070 /* Skip initial setlocale if LC_ALL is "C", as it's not needed in that case.
1071 The build procedure uses this while dumping, to ensure that the
1072 dumped Emacs does not have its system locale tables initialized,
1073 as that might cause screwups when the dumped Emacs starts up. */
1075 char *lc_all
= getenv ("LC_ALL");
1076 do_initial_setlocale
= ! lc_all
|| strcmp (lc_all
, "C");
1079 /* Set locale now, so that initial error messages are localized properly.
1080 fixup_locale must wait until later, since it builds strings. */
1081 if (do_initial_setlocale
)
1082 setlocale (LC_ALL
, "");
1084 #ifdef EXTRA_INITIALIZE
1088 inhibit_window_system
= 0;
1090 /* Handle the -t switch, which specifies filename to use as terminal. */
1094 if (argmatch (argv
, argc
, "-t", "--terminal", 4, &term
, &skip_args
))
1099 result
= emacs_open (term
, O_RDWR
, 0);
1102 char *errstring
= strerror (errno
);
1103 fprintf (stderr
, "%s: %s: %s\n", argv
[0], term
, errstring
);
1109 fprintf (stderr
, "%s: %s: not a tty\n", argv
[0], term
);
1112 fprintf (stderr
, "Using %s\n", term
);
1113 #ifdef HAVE_WINDOW_SYSTEM
1114 inhibit_window_system
= 1; /* -t => -nw */
1121 /* Command line option --no-windows is deprecated and thus not mentioned
1122 in the manual and usage informations. */
1123 if (argmatch (argv
, argc
, "-nw", "--no-window-system", 6, NULL
, &skip_args
)
1124 || argmatch (argv
, argc
, "-nw", "--no-windows", 6, NULL
, &skip_args
))
1125 inhibit_window_system
= 1;
1127 /* Handle the -batch switch, which means don't do interactive display. */
1129 if (argmatch (argv
, argc
, "-batch", "--batch", 5, NULL
, &skip_args
))
1132 Vundo_outer_limit
= Qnil
;
1134 if (argmatch (argv
, argc
, "-script", "--script", 3, &junk
, &skip_args
))
1136 noninteractive
= 1; /* Set batch mode. */
1137 /* Convert --script to --scriptload, un-skip it, and sort again
1138 so that it will be handled in proper sequence. */
1139 argv
[skip_args
- 1] = "-scriptload";
1141 sort_args (argc
, argv
);
1144 /* Handle the --help option, which gives a usage message. */
1145 if (argmatch (argv
, argc
, "-help", "--help", 3, NULL
, &skip_args
))
1147 printf (USAGE1
, argv
[0], USAGE2
);
1149 printf (USAGE4
, bug_reporting_address ());
1153 if (! noninteractive
)
1158 inherited_pgroup
= EMACS_GETPGRP (0);
1159 setpgrp (0, getpid ());
1162 #if defined (USG5) && defined (INTERRUPT_INPUT)
1166 #if defined (HAVE_GTK_AND_PTHREAD) && !defined (SYSTEM_MALLOC) && !defined (DOUG_LEA_MALLOC)
1168 extern void malloc_enable_thread
P_ ((void));
1170 malloc_enable_thread ();
1177 /* Don't catch SIGHUP if dumping. */
1184 sigblock (sigmask (SIGHUP
));
1185 /* In --batch mode, don't catch SIGHUP if already ignored.
1186 That makes nohup work. */
1187 if (! noninteractive
1188 || signal (SIGHUP
, SIG_IGN
) != SIG_IGN
)
1189 signal (SIGHUP
, fatal_error_signal
);
1190 sigunblock (sigmask (SIGHUP
));
1195 ! noninteractive
|| initialized
1201 /* Don't catch these signals in batch mode if dumping.
1202 On some machines, this sets static data that would make
1203 signal fail to work right when the dumped Emacs is run. */
1204 signal (SIGQUIT
, fatal_error_signal
);
1205 signal (SIGILL
, fatal_error_signal
);
1206 signal (SIGTRAP
, fatal_error_signal
);
1208 add_user_signal (SIGUSR1
, "sigusr1");
1211 add_user_signal (SIGUSR2
, "sigusr2");
1214 signal (SIGABRT
, fatal_error_signal
);
1217 signal (SIGHWE
, fatal_error_signal
);
1220 signal (SIGPRE
, fatal_error_signal
);
1223 signal (SIGORE
, fatal_error_signal
);
1226 signal (SIGUME
, fatal_error_signal
);
1229 signal (SIGDLK
, fatal_error_signal
);
1232 signal (SIGCPULIM
, fatal_error_signal
);
1235 /* This is missing on some systems - OS/2, for example. */
1236 signal (SIGIOT
, fatal_error_signal
);
1239 signal (SIGEMT
, fatal_error_signal
);
1241 signal (SIGFPE
, fatal_error_signal
);
1243 signal (SIGBUS
, fatal_error_signal
);
1245 signal (SIGSEGV
, fatal_error_signal
);
1247 signal (SIGSYS
, fatal_error_signal
);
1249 signal (SIGTERM
, fatal_error_signal
);
1251 signal (SIGXCPU
, fatal_error_signal
);
1254 signal (SIGXFSZ
, fatal_error_signal
);
1255 #endif /* SIGXFSZ */
1258 /* This just means available memory is getting low. */
1259 signal (SIGDANGER
, memory_warning_signal
);
1263 /* 20 is SIGCHLD, 21 is SIGTTIN, 22 is SIGTTOU. */
1264 signal (SIGXCPU
, fatal_error_signal
);
1266 signal (SIGIOINT
, fatal_error_signal
);
1268 signal (SIGGRANT
, fatal_error_signal
);
1269 signal (SIGRETRACT
, fatal_error_signal
);
1270 signal (SIGSOUND
, fatal_error_signal
);
1271 signal (SIGMSG
, fatal_error_signal
);
1275 noninteractive1
= noninteractive
;
1277 /* Perform basic initializations (not merely interning symbols). */
1284 init_charset_once ();
1285 init_coding_once ();
1286 init_syntax_once (); /* Create standard syntax table. */
1287 init_category_once (); /* Create standard category table. */
1288 /* Must be done before init_buffer. */
1289 init_casetab_once ();
1290 init_buffer_once (); /* Create buffer table and some buffers. */
1291 init_minibuf_once (); /* Create list of minibuffers. */
1292 /* Must precede init_window_once. */
1294 /* Call syms_of_xfaces before init_window_once because that
1295 function creates Vterminal_frame. Termcap frames now use
1296 faces, and the face implementation uses some symbols as
1299 /* Call syms_of_keyboard before init_window_once because
1300 keyboard sets up symbols that include some face names that
1301 the X support will want to use. This can happen when
1302 CANNOT_DUMP is defined. */
1303 syms_of_keyboard ();
1306 /* init_window_once calls make_terminal_frame which on Mac OS
1307 creates a full-fledge output_mac type frame. This does not
1308 work correctly before syms_of_textprop, syms_of_macfns,
1309 syms_of_ccl, syms_of_fontset, syms_of_xterm, syms_of_search,
1310 syms_of_frame, mac_term_init, and init_keyboard have already
1312 syms_of_textprop ();
1318 syms_of_macselect ();
1324 mac_term_init (build_string ("Mac"), NULL
, NULL
);
1328 init_window_once (); /* Init the window system. */
1329 init_fileio_once (); /* Must precede any path manipulation. */
1330 #ifdef HAVE_WINDOW_SYSTEM
1331 init_fringe_once (); /* Swap bitmaps if necessary. */
1332 #endif /* HAVE_WINDOW_SYSTEM */
1337 if (do_initial_setlocale
)
1340 Vsystem_messages_locale
= Vprevious_system_messages_locale
;
1341 Vsystem_time_locale
= Vprevious_system_time_locale
;
1346 #ifdef CLASH_DETECTION
1352 running_asynch_code
= 0;
1354 /* Handle --unibyte and the EMACS_UNIBYTE envvar,
1355 but not while dumping. */
1358 int inhibit_unibyte
= 0;
1360 /* --multibyte overrides EMACS_UNIBYTE. */
1361 if (argmatch (argv
, argc
, "-no-unibyte", "--no-unibyte", 4, NULL
, &skip_args
)
1362 || argmatch (argv
, argc
, "-multibyte", "--multibyte", 4, NULL
, &skip_args
)
1363 /* Ignore EMACS_UNIBYTE before dumping. */
1364 || (!initialized
&& noninteractive
))
1365 inhibit_unibyte
= 1;
1367 /* --unibyte requests that we set up to do everything with single-byte
1368 buffers and strings. We need to handle this before calling
1369 init_lread, init_editfns and other places that generate Lisp strings
1370 from text in the environment. */
1371 /* Actually this shouldn't be needed as of 20.4 in a generally
1372 unibyte environment. As handa says, environment values
1373 aren't now decoded; also existing buffers are now made
1374 unibyte during startup if .emacs sets unibyte. Tested with
1375 8-bit data in environment variables and /etc/passwd, setting
1376 unibyte and Latin-1 in .emacs. -- Dave Love */
1377 if (argmatch (argv
, argc
, "-unibyte", "--unibyte", 4, NULL
, &skip_args
)
1378 || argmatch (argv
, argc
, "-no-multibyte", "--no-multibyte", 4, NULL
, &skip_args
)
1379 || (getenv ("EMACS_UNIBYTE") && !inhibit_unibyte
))
1381 Lisp_Object old_log_max
;
1382 Lisp_Object symbol
, tail
;
1384 symbol
= intern ("default-enable-multibyte-characters");
1385 Fset (symbol
, Qnil
);
1389 /* Erase pre-dump messages in *Messages* now so no abort. */
1390 old_log_max
= Vmessage_log_max
;
1391 XSETFASTINT (Vmessage_log_max
, 0);
1392 message_dolog ("", 0, 1, 0);
1393 Vmessage_log_max
= old_log_max
;
1396 for (tail
= Vbuffer_alist
; CONSP (tail
);
1401 buffer
= Fcdr (XCAR (tail
));
1402 /* Verify that all buffers are empty now, as they
1404 if (BUF_Z (XBUFFER (buffer
)) > BUF_BEG (XBUFFER (buffer
)))
1406 /* It is safe to do this crudely in an empty buffer. */
1407 XBUFFER (buffer
)->enable_multibyte_characters
= Qnil
;
1413 = argmatch (argv
, argc
, "-nl", "--no-loadup", 6, NULL
, &skip_args
);
1416 #ifdef HAVE_X_WINDOWS
1417 /* Stupid kludge to catch command-line display spec. We can't
1418 handle this argument entirely in window system dependent code
1419 because we don't even know which window system dependent code
1420 to run until we've recognized this argument. */
1422 char *displayname
= 0;
1423 int count_before
= skip_args
;
1425 /* Skip any number of -d options, but only use the last one. */
1428 int count_before_this
= skip_args
;
1430 if (argmatch (argv
, argc
, "-d", "--display", 3, &displayname
, &skip_args
))
1432 else if (argmatch (argv
, argc
, "-display", 0, 3, &displayname
, &skip_args
))
1437 count_before
= count_before_this
;
1440 /* If we have the form --display=NAME,
1441 convert it into -d name.
1442 This requires inserting a new element into argv. */
1443 if (displayname
!= 0 && skip_args
- count_before
== 1)
1445 char **new = (char **) xmalloc (sizeof (char *) * (argc
+ 2));
1448 for (j
= 0; j
< count_before
+ 1; j
++)
1450 new[count_before
+ 1] = "-d";
1451 new[count_before
+ 2] = displayname
;
1452 for (j
= count_before
+ 2; j
<argc
; j
++)
1453 new[j
+ 1] = argv
[j
];
1457 /* Change --display to -d, when its arg is separate. */
1458 else if (displayname
!= 0 && skip_args
> count_before
1459 && argv
[count_before
+ 1][1] == '-')
1460 argv
[count_before
+ 1] = "-d";
1462 /* Don't actually discard this arg. */
1463 skip_args
= count_before
;
1467 /* argmatch must not be used after here,
1468 except when bulding temacs
1469 because the -d argument has not been skipped in skip_args. */
1472 /* Call early 'cause init_environment needs it. */
1474 /* Set defaults for several environment variables. */
1476 init_environment (argc
, argv
, skip_args
);
1483 /* Initialize environment from registry settings. */
1484 init_environment (argv
);
1485 init_ntproc (); /* must precede init_editfns. */
1488 #if defined (MAC_OSX) && defined (HAVE_CARBON)
1490 init_mac_osx_environment ();
1493 /* egetenv is a pretty low-level facility, which may get called in
1494 many circumstances; it seems flimsy to put off initializing it
1495 until calling init_callproc. */
1496 set_process_environment ();
1497 /* AIX crashes are reported in system versions 3.2.3 and 3.2.4
1498 if this is not done. Do it after set_process_environment so that we
1499 don't pollute Vprocess_environment. */
1500 /* Setting LANG here will defeat the startup locale processing... */
1505 init_buffer (); /* Init default directory of main buffer. */
1507 init_callproc_1 (); /* Must precede init_cmdargs and init_sys_modes. */
1508 init_cmdargs (argc
, argv
, skip_args
); /* Must precede init_lread. */
1512 /* Erase any pre-dump messages in the message log, to avoid confusion. */
1513 Lisp_Object old_log_max
;
1514 old_log_max
= Vmessage_log_max
;
1515 XSETFASTINT (Vmessage_log_max
, 0);
1516 message_dolog ("", 0, 1, 0);
1517 Vmessage_log_max
= old_log_max
;
1520 init_callproc (); /* Must follow init_cmdargs but not init_sys_modes. */
1523 /* Intern the names of all standard functions and variables;
1524 define standard keys. */
1528 /* The basic levels of Lisp must come first. */
1529 /* And data must come first of all
1530 for the sake of symbols like error-message. */
1532 /* Called before init_window_once for Mac OS Classic. */
1540 syms_of_floatfns ();
1544 syms_of_bytecode ();
1546 syms_of_casefiddle ();
1548 syms_of_callproc ();
1549 syms_of_category ();
1551 /* Called before init_window_once for Mac OS Classic. */
1556 #ifndef NO_DIR_LIBRARY
1558 #endif /* not NO_DIR_LIBRARY */
1564 syms_of_coding (); /* This should be after syms_of_fileio. */
1565 #ifdef CLASH_DETECTION
1566 syms_of_filelock ();
1567 #endif /* CLASH_DETECTION */
1576 /* Called before init_window_once for Mac OS Classic. */
1587 /* Called before init_window_once for Mac OS Classic. */
1588 syms_of_textprop ();
1590 syms_of_composite ();
1596 #endif /* WINDOWSNT */
1599 #ifdef HAVE_WINDOW_SYSTEM
1602 #endif /* HAVE_WINDOW_SYSTEM */
1603 #ifdef HAVE_X_WINDOWS
1613 #endif /* HAVE_X_WINDOWS */
1617 /* Called before init_window_once for Mac OS Classic. */
1625 syms_of_w32select ();
1628 #endif /* HAVE_NTGUI */
1630 #if defined (MAC_OSX) && defined (HAVE_CARBON)
1634 syms_of_macselect ();
1636 #endif /* MAC_OSX && HAVE_CARBON */
1646 keys_of_casefiddle ();
1649 keys_of_keyboard ();
1656 /* Initialization that must be done even if the global variable
1657 initialized is non zero. */
1659 globals_of_w32fns ();
1660 globals_of_w32menu ();
1661 globals_of_w32select ();
1662 #endif /* HAVE_NTGUI */
1665 if (!noninteractive
)
1668 init_vms_input ();/* init_display calls get_frame_size, that needs this. */
1670 init_display (); /* Determine terminal type. init_sys_modes uses results. */
1673 /* Called before init_window_once for Mac OS Classic. */
1674 init_keyboard (); /* This too must precede init_sys_modes. */
1677 init_vmsproc (); /* And this too. */
1679 init_sys_modes (); /* Init system terminal modes (RAW or CBREAK, etc.). */
1682 #ifdef HAVE_WINDOW_SYSTEM
1685 #endif /* HAVE_WINDOW_SYSTEM */
1701 /* Handle -l loadup, args passed by Makefile. */
1702 if (argmatch (argv
, argc
, "-l", "--load", 3, &file
, &skip_args
))
1703 Vtop_level
= Fcons (intern ("load"),
1704 Fcons (build_string (file
), Qnil
));
1705 /* Unless next switch is -nl, load "loadup.el" first thing. */
1707 Vtop_level
= Fcons (intern ("load"),
1708 Fcons (build_string ("loadup.el"), Qnil
));
1715 /* If the execution TZ happens to be the same as the dump TZ,
1716 change it to some other value and then change it back,
1717 to force the underlying implementation to reload the TZ info.
1718 This is needed on implementations that load TZ info from files,
1719 since the TZ file contents may differ between dump and execution. */
1720 char *tz
= getenv ("TZ");
1721 if (tz
&& !strcmp (tz
, dump_tz
))
1731 /* Set up for profiling. This is known to work on FreeBSD,
1732 GNU/Linux and MinGW. It might work on some other systems too.
1733 Give it a try and tell us if it works on your system. To compile
1734 for profiling, add -pg to the switches your platform uses in
1735 CFLAGS and LDFLAGS. For example:
1736 `make CFLAGS="-pg -g -O -DPROFILING=1" LDFLAGS="-pg -g"'. */
1737 #if defined (__FreeBSD__) || defined (GNU_LINUX) || defined(__MINGW32__)
1741 extern void _mcleanup ();
1743 extern unsigned char etext
asm ("etext");
1747 extern void safe_bcopy ();
1748 extern void dump_opcode_frequencies ();
1751 /* This uses safe_bcopy because that function comes first in the
1752 Emacs executable. It might be better to use something that
1753 gives the start of the text segment, but start_of_text is not
1754 defined on all systems now. */
1755 monstartup (safe_bcopy
, &etext
);
1764 #ifdef LOCALTIME_CACHE
1765 /* Some versions of localtime have a bug. They cache the value of the time
1766 zone rather than looking it up every time. Since localtime() is
1767 called to bolt the undumping time into the undumped emacs, this
1768 results in localtime ignoring the TZ environment variable.
1769 This flushes the new TZ value into localtime. */
1771 #endif /* defined (LOCALTIME_CACHE) */
1773 /* Enter editor command loop. This never returns. */
1779 /* Sort the args so we can find the most important ones
1780 at the beginning of argv. */
1782 /* First, here's a table of all the standard options. */
1784 struct standard_args
1792 struct standard_args standard_args
[] =
1794 { "-version", "--version", 150, 0 },
1796 { "-nl", "--no-shared-memory", 140, 0 },
1799 { "-map", "--map-data", 130, 0 },
1801 { "-t", "--terminal", 120, 1 },
1802 { "-nw", "--no-window-system", 110, 0 },
1803 { "-nw", "--no-windows", 110, 0 },
1804 { "-batch", "--batch", 100, 0 },
1805 { "-script", "--script", 100, 1 },
1806 { "-help", "--help", 90, 0 },
1807 { "-no-unibyte", "--no-unibyte", 83, 0 },
1808 { "-multibyte", "--multibyte", 82, 0 },
1809 { "-unibyte", "--unibyte", 81, 0 },
1810 { "-no-multibyte", "--no-multibyte", 80, 0 },
1811 { "-nl", "--no-loadup", 70, 0 },
1812 /* -d must come last before the options handled in startup.el. */
1813 { "-d", "--display", 60, 1 },
1814 { "-display", 0, 60, 1 },
1815 /* Now for the options handled in startup.el. */
1816 { "-Q", "--quick", 55, 0 },
1817 { "-quick", 0, 55, 0 },
1818 { "-q", "--no-init-file", 50, 0 },
1819 { "-no-init-file", 0, 50, 0 },
1820 { "-no-site-file", "--no-site-file", 40, 0 },
1821 { "-no-splash", "--no-splash", 40, 0 },
1822 { "-u", "--user", 30, 1 },
1823 { "-user", 0, 30, 1 },
1824 { "-debug-init", "--debug-init", 20, 0 },
1825 { "-nbi", "--no-bitmap-icon", 15, 0 },
1826 { "-iconic", "--iconic", 15, 0 },
1827 { "-D", "--basic-display", 12, 0},
1828 { "-basic-display", 0, 12, 0},
1829 { "-bg", "--background-color", 10, 1 },
1830 { "-background", 0, 10, 1 },
1831 { "-fg", "--foreground-color", 10, 1 },
1832 { "-foreground", 0, 10, 1 },
1833 { "-bd", "--border-color", 10, 1 },
1834 { "-bw", "--border-width", 10, 1 },
1835 { "-ib", "--internal-border", 10, 1 },
1836 { "-ms", "--mouse-color", 10, 1 },
1837 { "-cr", "--cursor-color", 10, 1 },
1838 { "-nbc", "--no-blinking-cursor", 10, 0 },
1839 { "-fn", "--font", 10, 1 },
1840 { "-font", 0, 10, 1 },
1841 { "-fs", "--fullscreen", 10, 0 },
1842 { "-fw", "--fullwidth", 10, 0 },
1843 { "-fh", "--fullheight", 10, 0 },
1844 { "-g", "--geometry", 10, 1 },
1845 { "-geometry", 0, 10, 1 },
1846 { "-T", "--title", 10, 1 },
1847 { "-title", 0, 10, 1 },
1848 { "-name", "--name", 10, 1 },
1849 { "-xrm", "--xrm", 10, 1 },
1850 { "-r", "--reverse-video", 5, 0 },
1852 { "-reverse", 0, 5, 0 },
1853 { "-hb", "--horizontal-scroll-bars", 5, 0 },
1854 { "-vb", "--vertical-scroll-bars", 5, 0 },
1855 { "-color", "--color", 5, 0},
1856 /* These have the same priority as ordinary file name args,
1857 so they are not reordered with respect to those. */
1858 { "-L", "--directory", 0, 1 },
1859 { "-directory", 0, 0, 1 },
1860 { "-l", "--load", 0, 1 },
1861 { "-load", 0, 0, 1 },
1862 { "-scriptload", "--scriptload", 0, 1 },
1863 { "-f", "--funcall", 0, 1 },
1864 { "-funcall", 0, 0, 1 },
1865 { "-eval", "--eval", 0, 1 },
1866 { "-execute", "--execute", 0, 1 },
1867 { "-find-file", "--find-file", 0, 1 },
1868 { "-visit", "--visit", 0, 1 },
1869 { "-file", "--file", 0, 1 },
1870 { "-insert", "--insert", 0, 1 },
1871 /* This should be processed after ordinary file name args and the like. */
1872 { "-kill", "--kill", -10, 0 },
1875 /* Reorder the elements of ARGV (assumed to have ARGC elements)
1876 so that the highest priority ones come first.
1877 Do not change the order of elements of equal priority.
1878 If an option takes an argument, keep it and its argument together.
1880 If an option that takes no argument appears more
1881 than once, eliminate all but one copy of it. */
1884 sort_args (argc
, argv
)
1888 char **new = (char **) xmalloc (sizeof (char *) * argc
);
1889 /* For each element of argv,
1890 the corresponding element of options is:
1891 0 for an option that takes no arguments,
1892 1 for an option that takes one argument, etc.
1893 -1 for an ordinary non-option argument. */
1894 int *options
= (int *) xmalloc (sizeof (int) * argc
);
1895 int *priority
= (int *) xmalloc (sizeof (int) * argc
);
1897 int incoming_used
= 1;
1901 /* Categorize all the options,
1902 and figure out which argv elts are option arguments. */
1903 for (from
= 1; from
< argc
; from
++)
1907 if (argv
[from
][0] == '-')
1912 /* If we have found "--", don't consider
1913 any more arguments as options. */
1914 if (argv
[from
][1] == '-' && argv
[from
][2] == 0)
1916 /* Leave the "--", and everything following it, at the end. */
1917 for (; from
< argc
; from
++)
1919 priority
[from
] = -100;
1925 /* Look for a match with a known old-fashioned option. */
1926 for (i
= 0; i
< sizeof (standard_args
) / sizeof (standard_args
[0]); i
++)
1927 if (!strcmp (argv
[from
], standard_args
[i
].name
))
1929 options
[from
] = standard_args
[i
].nargs
;
1930 priority
[from
] = standard_args
[i
].priority
;
1931 if (from
+ standard_args
[i
].nargs
>= argc
)
1932 fatal ("Option `%s' requires an argument\n", argv
[from
]);
1933 from
+= standard_args
[i
].nargs
;
1937 /* Look for a match with a known long option.
1938 MATCH is -1 if no match so far, -2 if two or more matches so far,
1939 >= 0 (the table index of the match) if just one match so far. */
1940 if (argv
[from
][1] == '-')
1943 thislen
= strlen (argv
[from
]);
1944 equals
= index (argv
[from
], '=');
1946 thislen
= equals
- argv
[from
];
1949 i
< sizeof (standard_args
) / sizeof (standard_args
[0]); i
++)
1950 if (standard_args
[i
].longname
1951 && !strncmp (argv
[from
], standard_args
[i
].longname
,
1960 /* If we found exactly one match, use that. */
1963 options
[from
] = standard_args
[match
].nargs
;
1964 priority
[from
] = standard_args
[match
].priority
;
1965 /* If --OPTION=VALUE syntax is used,
1966 this option uses just one argv element. */
1969 if (from
+ options
[from
] >= argc
)
1970 fatal ("Option `%s' requires an argument\n", argv
[from
]);
1971 from
+= options
[from
];
1978 /* Copy the arguments, in order of decreasing priority, to NEW. */
1980 while (incoming_used
< argc
)
1983 int best_priority
= -9999;
1985 /* Find the highest priority remaining option.
1986 If several have equal priority, take the first of them. */
1987 for (from
= 1; from
< argc
; from
++)
1989 if (argv
[from
] != 0 && priority
[from
] > best_priority
)
1991 best_priority
= priority
[from
];
1994 /* Skip option arguments--they are tied to the options. */
1995 if (options
[from
] > 0)
1996 from
+= options
[from
];
2002 /* Copy the highest priority remaining option, with its args, to NEW.
2003 Unless it is a duplicate of the previous one. */
2004 if (! (options
[best
] == 0
2005 && ! strcmp (new[to
- 1], argv
[best
])))
2007 new[to
++] = argv
[best
];
2008 for (i
= 0; i
< options
[best
]; i
++)
2009 new[to
++] = argv
[best
+ i
+ 1];
2012 incoming_used
+= 1 + (options
[best
] > 0 ? options
[best
] : 0);
2014 /* Clear out this option in ARGV. */
2016 for (i
= 0; i
< options
[best
]; i
++)
2017 argv
[best
+ i
+ 1] = 0;
2020 /* If duplicate options were deleted, fill up extra space with null ptrs. */
2024 bcopy (new, argv
, sizeof (char *) * argc
);
2031 DEFUN ("kill-emacs", Fkill_emacs
, Skill_emacs
, 0, 1, "P",
2032 doc
: /* Exit the Emacs job and kill it.
2033 If ARG is an integer, return ARG as the exit program code.
2034 If ARG is a string, stuff it as keyboard input.
2036 The value of `kill-emacs-hook', if not void,
2037 is a list of functions (of no args),
2038 all of which are called before Emacs is actually killed. */)
2042 struct gcpro gcpro1
;
2049 if (!NILP (Vrun_hooks
) && !noninteractive
)
2050 call1 (Vrun_hooks
, intern ("kill-emacs-hook"));
2054 /* Is it really necessary to do this deassign
2055 when we are going to exit anyway? */
2060 shut_down_emacs (0, 0, STRINGP (arg
) ? arg
: Qnil
);
2062 /* If we have an auto-save list file,
2063 kill it because we are exiting Emacs deliberately (not crashing).
2064 Do it after shut_down_emacs, which does an auto-save. */
2065 if (STRINGP (Vauto_save_list_file_name
))
2066 unlink (SDATA (Vauto_save_list_file_name
));
2068 exit (INTEGERP (arg
) ? XINT (arg
) : EXIT_SUCCESS
);
2074 /* Perform an orderly shutdown of Emacs. Autosave any modified
2075 buffers, kill any child processes, clean up the terminal modes (if
2076 we're in the foreground), and other stuff like that. Don't perform
2077 any redisplay; this may be called when Emacs is shutting down in
2078 the background, or after its X connection has died.
2080 If SIG is a signal number, print a message for it.
2082 This is called by fatal signal handlers, X protocol error handlers,
2086 shut_down_emacs (sig
, no_x
, stuff
)
2090 /* Prevent running of hooks from now on. */
2093 /* Don't update display from now on. */
2094 Vinhibit_redisplay
= Qt
;
2096 /* If we are controlling the terminal, reset terminal modes. */
2097 #ifdef EMACS_HAVE_TTY_PGRP
2099 int pgrp
= EMACS_GETPGRP (0);
2102 if (EMACS_GET_TTY_PGRP (0, &tpgrp
) != -1
2107 if (sig
&& sig
!= SIGTERM
)
2108 fprintf (stderr
, "Fatal error (%d)", sig
);
2116 stuff_buffered_input (stuff
);
2119 inhibit_sentinels
= 1;
2121 kill_buffer_processes (Qnil
);
2122 Fdo_auto_save (Qt
, Qnil
);
2124 #ifdef CLASH_DETECTION
2125 unlock_all_files ();
2129 kill_vms_processes ();
2132 #if 0 /* This triggers a bug in XCloseDisplay and is not needed. */
2133 #ifdef HAVE_X_WINDOWS
2134 /* It's not safe to call intern here. Maybe we are crashing. */
2135 if (!noninteractive
&& SYMBOLP (Vwindow_system
)
2136 && SCHARS (SYMBOL_NAME (Vwindow_system
)) == 1
2137 && SREF (SYMBOL_NAME (Vwindow_system
), 0) == 'x'
2139 Fx_close_current_connection ();
2140 #endif /* HAVE_X_WINDOWS */
2144 /* There is a tendency for a SIGIO signal to arrive within exit,
2145 and cause a SIGHUP because the input descriptor is already closed. */
2147 signal (SIGIO
, SIG_IGN
);
2154 /* Do this only if terminating normally, we want glyph matrices
2155 etc. in a core dump. */
2156 if (sig
== 0 || sig
== SIGTERM
)
2158 check_glyph_memory ();
2159 check_message_stack ();
2173 DEFUN ("dump-emacs-data", Fdump_emacs_data
, Sdump_emacs_data
, 1, 1, 0,
2174 doc
: /* Dump current state of Emacs into data file FILENAME.
2175 This function exists on systems that use HAVE_SHM. */)
2177 Lisp_Object filename
;
2179 extern char my_edata
[];
2183 CHECK_STRING (filename
);
2184 filename
= Fexpand_file_name (filename
, Qnil
);
2187 Vpurify_flag
= Qnil
;
2190 /* Tell malloc where start of impure now is. */
2191 /* Also arrange for warnings when nearly out of space. */
2192 #ifndef SYSTEM_MALLOC
2193 memory_warnings (my_edata
, malloc_warning
);
2195 map_out_data (SDATA (filename
));
2202 #else /* not HAVE_SHM */
2204 DEFUN ("dump-emacs", Fdump_emacs
, Sdump_emacs
, 2, 2, 0,
2205 doc
: /* Dump current state of Emacs into executable file FILENAME.
2206 Take symbols from SYMFILE (presumably the file you executed to run Emacs).
2207 This is used in the file `loadup.el' when building Emacs.
2209 You must run Emacs in batch mode in order to dump it. */)
2211 Lisp_Object filename
, symfile
;
2213 extern char my_edata
[];
2216 int count
= SPECPDL_INDEX ();
2220 if (! noninteractive
)
2221 error ("Dumping Emacs works only in batch mode");
2224 if (heap_bss_diff
> MAX_HEAP_BSS_DIFF
)
2226 fprintf (stderr
, "**************************************************\n");
2227 fprintf (stderr
, "Warning: Your system has a gap between BSS and the\n");
2228 fprintf (stderr
, "heap (%lu byte). This usually means that exec-shield\n",
2230 fprintf (stderr
, "or something similar is in effect. The dump may\n");
2231 fprintf (stderr
, "fail because of this. See the section about \n");
2232 fprintf (stderr
, "exec-shield in etc/PROBLEMS for more information.\n");
2233 fprintf (stderr
, "**************************************************\n");
2235 #endif /* GNU_LINUX */
2237 /* Bind `command-line-processed' to nil before dumping,
2238 so that the dumped Emacs will process its command line
2239 and set up to work with X windows if appropriate. */
2240 symbol
= intern ("command-line-processed");
2241 specbind (symbol
, Qnil
);
2243 CHECK_STRING (filename
);
2244 filename
= Fexpand_file_name (filename
, Qnil
);
2245 if (!NILP (symfile
))
2247 CHECK_STRING (symfile
);
2248 if (SCHARS (symfile
))
2249 symfile
= Fexpand_file_name (symfile
, Qnil
);
2253 Vpurify_flag
= Qnil
;
2256 set_time_zone_rule (dump_tz
);
2257 #ifndef LOCALTIME_CACHE
2258 /* Force a tz reload, since set_time_zone_rule doesn't. */
2265 mapout_data (SDATA (filename
));
2267 /* Tell malloc where start of impure now is. */
2268 /* Also arrange for warnings when nearly out of space. */
2269 #ifndef SYSTEM_MALLOC
2271 /* On Windows, this was done before dumping, and that once suffices.
2272 Meanwhile, my_edata is not valid on Windows. */
2273 memory_warnings (my_edata
, malloc_warning
);
2274 #endif /* not WINDOWSNT */
2276 #if !defined (SYSTEM_MALLOC) && defined (HAVE_GTK_AND_PTHREAD) && !defined SYNC_INPUT
2277 /* Pthread may call malloc before main, and then we will get an endless
2278 loop, because pthread_self (see alloc.c) calls malloc the first time
2279 it is called on some systems. */
2280 reset_malloc_hooks ();
2282 #ifdef DOUG_LEA_MALLOC
2283 malloc_state_ptr
= malloc_get_state ();
2286 #ifdef USE_MMAP_FOR_BUFFERS
2289 unexec (SDATA (filename
),
2290 !NILP (symfile
) ? SDATA (symfile
) : 0, my_edata
, 0, 0);
2291 #ifdef USE_MMAP_FOR_BUFFERS
2294 #ifdef DOUG_LEA_MALLOC
2295 free (malloc_state_ptr
);
2297 #endif /* not VMS */
2301 return unbind_to (count
, Qnil
);
2304 #endif /* not HAVE_SHM */
2306 #endif /* not CANNOT_DUMP */
2309 /* Recover from setlocale (LC_ALL, ""). */
2313 /* The Emacs Lisp reader needs LC_NUMERIC to be "C",
2314 so that numbers are read and printed properly for Emacs Lisp. */
2315 setlocale (LC_NUMERIC
, "C");
2318 /* Set system locale CATEGORY, with previous locale *PLOCALE, to
2321 synchronize_locale (category
, plocale
, desired_locale
)
2323 Lisp_Object
*plocale
;
2324 Lisp_Object desired_locale
;
2326 if (! EQ (*plocale
, desired_locale
))
2328 *plocale
= desired_locale
;
2329 setlocale (category
, (STRINGP (desired_locale
)
2330 ? (char *) SDATA (desired_locale
)
2335 /* Set system time locale to match Vsystem_time_locale, if possible. */
2337 synchronize_system_time_locale ()
2339 synchronize_locale (LC_TIME
, &Vprevious_system_time_locale
,
2340 Vsystem_time_locale
);
2343 /* Set system messages locale to match Vsystem_messages_locale, if
2346 synchronize_system_messages_locale ()
2349 synchronize_locale (LC_MESSAGES
, &Vprevious_system_messages_locale
,
2350 Vsystem_messages_locale
);
2353 #endif /* HAVE_SETLOCALE */
2360 decode_env_path (evarname
, defalt
)
2361 char *evarname
, *defalt
;
2363 register char *path
, *p
;
2364 Lisp_Object lpath
, element
, tem
;
2366 /* It's okay to use getenv here, because this function is only used
2367 to initialize variables when Emacs starts up, and isn't called
2370 path
= (char *) getenv (evarname
);
2376 /* Ensure values from the environment use the proper directory separator. */
2379 p
= alloca (strlen (path
) + 1);
2383 if ('/' == DIRECTORY_SEP
)
2384 dostounix_filename (path
);
2386 unixtodos_filename (path
);
2392 p
= index (path
, SEPCHAR
);
2393 if (!p
) p
= path
+ strlen (path
);
2394 element
= (p
- path
? make_string (path
, p
- path
)
2395 : build_string ("."));
2397 /* Add /: to the front of the name
2398 if it would otherwise be treated as magic. */
2399 tem
= Ffind_file_name_handler (element
, Qt
);
2401 /* However, if the handler says "I'm safe",
2402 don't bother adding /:. */
2406 prop
= Fget (tem
, intern ("safe-magic"));
2412 element
= concat2 (build_string ("/:"), element
);
2414 lpath
= Fcons (element
, lpath
);
2420 return Fnreverse (lpath
);
2426 Qfile_name_handler_alist
= intern ("file-name-handler-alist");
2427 staticpro (&Qfile_name_handler_alist
);
2431 defsubr (&Sdump_emacs_data
);
2433 defsubr (&Sdump_emacs
);
2437 defsubr (&Skill_emacs
);
2439 defsubr (&Sinvocation_name
);
2440 defsubr (&Sinvocation_directory
);
2442 DEFVAR_LISP ("command-line-args", &Vcommand_line_args
,
2443 doc
: /* Args passed by shell to Emacs, as a list of strings.
2444 Many arguments are deleted from the list as they are processed. */);
2446 DEFVAR_LISP ("system-type", &Vsystem_type
,
2447 doc
: /* Value is symbol indicating type of operating system you are using.
2449 `gnu/linux' compiled for a GNU/Linux system.
2450 `darwin' compiled for Darwin (GNU-Darwin, Mac OS X, ...).
2451 `macos' compiled for Mac OS 9.
2452 `ms-dos' compiled as an MS-DOS application.
2453 `windows-nt' compiled as a native W32 application.
2454 `cygwin' compiled using the Cygwin library.
2456 `axp-vms' compiled for a (Open)VMS system.
2457 Anything else indicates some sort of Unix system. */);
2458 Vsystem_type
= intern (SYSTEM_TYPE
);
2460 DEFVAR_LISP ("system-configuration", &Vsystem_configuration
,
2461 doc
: /* Value is string indicating configuration Emacs was built for.
2462 On MS-Windows, the value reflects the OS flavor and version on which
2463 Emacs is running. */);
2464 Vsystem_configuration
= build_string (EMACS_CONFIGURATION
);
2466 DEFVAR_LISP ("system-configuration-options", &Vsystem_configuration_options
,
2467 doc
: /* String containing the configuration options Emacs was built with. */);
2468 Vsystem_configuration_options
= build_string (EMACS_CONFIG_OPTIONS
);
2470 DEFVAR_BOOL ("noninteractive", &noninteractive1
,
2471 doc
: /* Non-nil means Emacs is running without interactive terminal. */);
2473 DEFVAR_LISP ("kill-emacs-hook", &Vkill_emacs_hook
,
2474 doc
: /* Hook to be run when kill-emacs is called.
2475 Since `kill-emacs' may be invoked when the terminal is disconnected (or
2476 in other similar situations), functions placed on this hook should not
2477 expect to be able to interact with the user. To ask for confirmation,
2478 see `kill-emacs-query-functions' instead.
2480 The hook is not run in batch mode, i.e., if `noninteractive' is non-nil. */);
2481 Vkill_emacs_hook
= Qnil
;
2483 DEFVAR_INT ("emacs-priority", &emacs_priority
,
2484 doc
: /* Priority for Emacs to run at.
2485 This value is effective only if set before Emacs is dumped,
2486 and only if the Emacs executable is installed with setuid to permit
2487 it to change priority. (Emacs sets its uid back to the real uid.)
2488 Currently, you need to define SET_EMACS_PRIORITY in `config.h'
2489 before you compile Emacs, to enable the code for this feature. */);
2492 DEFVAR_LISP ("path-separator", &Vpath_separator
,
2493 doc
: /* String containing the character that separates directories in
2494 search paths, such as PATH and other similar environment variables. */);
2497 Vpath_separator
= make_string (&c
, 1);
2500 DEFVAR_LISP ("invocation-name", &Vinvocation_name
,
2501 doc
: /* The program name that was used to run Emacs.
2502 Any directory names are omitted. */);
2504 DEFVAR_LISP ("invocation-directory", &Vinvocation_directory
,
2505 doc
: /* The directory in which the Emacs executable was found, to run it.
2506 The value is nil if that directory's name is not known. */);
2508 DEFVAR_LISP ("installation-directory", &Vinstallation_directory
,
2509 doc
: /* A directory within which to look for the `lib-src' and `etc' directories.
2510 This is non-nil when we can't find those directories in their standard
2511 installed locations, but we can find them
2512 near where the Emacs executable was found. */);
2513 Vinstallation_directory
= Qnil
;
2515 DEFVAR_LISP ("system-messages-locale", &Vsystem_messages_locale
,
2516 doc
: /* System locale for messages. */);
2517 Vsystem_messages_locale
= Qnil
;
2519 DEFVAR_LISP ("previous-system-messages-locale",
2520 &Vprevious_system_messages_locale
,
2521 doc
: /* Most recently used system locale for messages. */);
2522 Vprevious_system_messages_locale
= Qnil
;
2524 DEFVAR_LISP ("system-time-locale", &Vsystem_time_locale
,
2525 doc
: /* System locale for time. */);
2526 Vsystem_time_locale
= Qnil
;
2528 DEFVAR_LISP ("previous-system-time-locale", &Vprevious_system_time_locale
,
2529 doc
: /* Most recently used system locale for time. */);
2530 Vprevious_system_time_locale
= Qnil
;
2533 /* arch-tag: 7bfd356a-c720-4612-8ab6-aa4222931c2e
2534 (do not change this comment) */