1 /* Fully extensible Emacs, running on Unix, intended for GNU.
2 Copyright (C) 1985, 1986, 1987, 1993, 1994, 1995, 1997, 1998, 1999, 2001,
3 2002, 2003, 2004, 2005 Free Software Foundation, Inc.
5 This file is part of GNU Emacs.
7 GNU Emacs is free software; you can redistribute it and/or modify
8 it under the terms of the GNU General Public License as published by
9 the Free Software Foundation; either version 2, or (at your option)
12 GNU Emacs is distributed in the hope that it will be useful,
13 but WITHOUT ANY WARRANTY; without even the implied warranty of
14 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
15 GNU General Public License for more details.
17 You should have received a copy of the GNU General Public License
18 along with GNU Emacs; see the file COPYING. If not, write to
19 the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
20 Boston, MA 02111-1307, USA. */
28 #include <sys/types.h>
40 #include <sys/ioctl.h>
45 #include <windows.h> /* just for w32.h */
51 #include "intervals.h"
56 #include "blockinput.h"
57 #include "syssignal.h"
59 #include "termhooks.h"
69 #include <sys/resource.h>
72 #ifdef HAVE_PERSONALITY_LINUX32
73 #include <sys/personality.h>
81 #if !defined (USG) || defined (BSD_PGRPS)
83 #define setpgrp setpgid
87 extern void malloc_warning
P_ ((char *));
88 extern void set_time_zone_rule
P_ ((char *));
90 extern char *index
P_ ((const char *, int));
93 /* Make these values available in GDB, which doesn't see macros. */
101 int gdb_use_union
= 0;
103 int gdb_use_union
= 1;
105 EMACS_INT gdb_valbits
= VALBITS
;
106 EMACS_INT gdb_gctypebits
= GCTYPEBITS
;
108 EMACS_INT gdb_data_seg_bits
= DATA_SEG_BITS
;
110 EMACS_INT gdb_data_seg_bits
= 0;
112 EMACS_INT PVEC_FLAG
= PSEUDOVECTOR_FLAG
;
113 EMACS_INT gdb_array_mark_flag
= ARRAY_MARK_FLAG
;
115 /* Command line args from shell, as list of strings. */
116 Lisp_Object Vcommand_line_args
;
118 /* The name under which Emacs was invoked, with any leading directory
120 Lisp_Object Vinvocation_name
;
122 /* The directory name from which Emacs was invoked. */
123 Lisp_Object Vinvocation_directory
;
125 /* The directory name in which to find subdirs such as lisp and etc.
126 nil means get them only from PATH_LOADSEARCH. */
127 Lisp_Object Vinstallation_directory
;
129 /* Hook run by `kill-emacs' before it does really anything. */
130 Lisp_Object Vkill_emacs_hook
;
132 /* An empty lisp string. To avoid having to build any other. */
133 Lisp_Object empty_string
;
135 /* Search path separator. */
136 Lisp_Object Vpath_separator
;
138 /* Set nonzero after Emacs has started up the first time.
139 Prevents reinitialization of the Lisp world and keymaps
140 on subsequent starts. */
143 #ifdef DOUG_LEA_MALLOC
144 /* Preserves a pointer to the memory allocated that copies that
145 static data inside glibc's malloc. */
146 void *malloc_state_ptr
;
147 /* From glibc, a routine that returns a copy of the malloc internal state. */
148 extern void *malloc_get_state ();
149 /* From glibc, a routine that overwrites the malloc internal state. */
150 extern void malloc_set_state ();
151 /* Non-zero if the MALLOC_CHECK_ enviroment variable was set while
152 dumping. Used to work around a bug in glibc's malloc. */
153 int malloc_using_checking
;
156 /* Variable whose value is symbol giving operating system type. */
157 Lisp_Object Vsystem_type
;
159 /* Variable whose value is string giving configuration built for. */
160 Lisp_Object Vsystem_configuration
;
162 /* Variable whose value is string giving configuration options,
163 for use when reporting bugs. */
164 Lisp_Object Vsystem_configuration_options
;
166 Lisp_Object Qfile_name_handler_alist
;
168 /* Current and previous system locales for messages and time. */
169 Lisp_Object Vsystem_messages_locale
;
170 Lisp_Object Vprevious_system_messages_locale
;
171 Lisp_Object Vsystem_time_locale
;
172 Lisp_Object Vprevious_system_time_locale
;
174 /* If non-zero, emacs should not attempt to use a window-specific code,
175 but instead should use the virtual terminal under which it was started. */
176 int inhibit_window_system
;
178 /* If nonzero, set Emacs to run at this priority. This is also used
179 in child_setup and sys_suspend to make sure subshells run at normal
180 priority; those functions have their own extern declaration. */
181 EMACS_INT emacs_priority
;
183 /* If non-zero, a filter or a sentinel is running. Tested to save the match
184 data on the first attempt to change it inside asynchronous code. */
185 int running_asynch_code
;
189 extern int inherited_pgroup
;
192 #ifdef HAVE_X_WINDOWS
193 /* If non-zero, -d was specified, meaning we're using some window system. */
197 /* An address near the bottom of the stack.
198 Tells GC how to save a copy of the stack. */
201 /* The address where the heap starts (from the first sbrk (0) call). */
202 static void *my_heap_start
;
204 /* The gap between BSS end and heap start as far as we can tell. */
205 static unsigned long heap_bss_diff
;
207 /* If the gap between BSS end and heap start is larger than this we try to
208 work around it, and if that fails, output a warning in dump-emacs. */
209 #define MAX_HEAP_BSS_DIFF (1024*1024)
212 #ifdef HAVE_WINDOW_SYSTEM
213 extern Lisp_Object Vwindow_system
;
214 #endif /* HAVE_WINDOW_SYSTEM */
216 extern Lisp_Object Vauto_save_list_file_name
;
218 extern Lisp_Object Vinhibit_redisplay
;
220 #ifdef USG_SHARED_LIBRARIES
221 /* If nonzero, this is the place to put the end of the writable segment
224 unsigned int bss_end
= 0;
227 /* Nonzero means running Emacs without interactive terminal. */
231 /* Value of Lisp variable `noninteractive'.
232 Normally same as C variable `noninteractive'
233 but nothing terrible happens if user sets this one. */
237 /* Save argv and argc. */
241 static void sort_args ();
242 void syms_of_emacs ();
244 /* MSVC needs each string be shorter than 2048 bytes, so the usage
245 strings below are split to not overflow this limit. */
247 Usage: %s [OPTION-OR-FILENAME]...\n\
249 Run Emacs, the extensible, customizable, self-documenting real-time\n\
250 display editor. The recommended way to start Emacs for normal editing\n\
251 is with no options at all.\n\
253 Run M-x info RET m emacs RET m emacs invocation RET inside Emacs to\n\
254 read the main documentation for these command-line arguments.\n\
256 Initialization options:\n\
258 --batch do not do interactive display; implies -q\n\
259 --debug-init enable Emacs Lisp debugger for init file\n\
260 --display, -d DISPLAY use X server DISPLAY\n\
261 --multibyte, --no-unibyte inhibit the effect of EMACS_UNIBYTE\n\
262 --no-desktop do not load a saved desktop\n\
263 --no-init-file, -q load neither ~/.emacs nor default.el\n\
264 --no-shared-memory, -nl do not use shared memory\n\
265 --no-site-file do not load site-start.el\n\
266 --no-splash do not display a splash screen on startup\n\
267 --no-window-system, -nw don't communicate with X, ignoring $DISPLAY\n\
268 --script FILE run FILE as an Emacs Lisp script\n\
269 --terminal, -t DEVICE use DEVICE for terminal I/O\n\
270 --unibyte, --no-multibyte run Emacs in unibyte mode\n\
271 --user, -u USER load ~USER/.emacs instead of your own\n\
277 FILE visit FILE using find-file\n\
278 +LINE FILE visit FILE using find-file, then go to line LINE\n\
279 +LINE:COLUMN FILE visit FILE using find-file, then go to line LINE,\n\
281 --directory, -L DIR add DIR to variable load-path\n\
282 --eval EXPR evaluate Emacs Lisp expression EXPR\n\
283 --execute EXPR evaluate Emacs Lisp expression EXPR\n\
284 --file FILE visit FILE using find-file\n\
285 --find-file FILE visit FILE using find-file\n\
286 --funcall, -f FUNC call Emacs Lisp function FUNC with no arguments\n\
287 --insert FILE insert contents of FILE into current buffer\n\
288 --kill exit without asking for confirmation\n\
289 --load, -l FILE load Emacs Lisp FILE using the load function\n\
290 --visit FILE visit FILE using find-file\n\
296 --background-color, -bg COLOR window background color\n\
297 --border-color, -bd COLOR main border color\n\
298 --border-width, -bw WIDTH width of main border\n\
299 --color, --color=MODE color mode for character terminals;\n\
300 MODE defaults to `auto', and can also\n\
301 be `never', `auto', `always',\n\
302 or a mode name like `ansi8'\n\
303 --cursor-color, -cr COLOR color of the Emacs cursor indicating point\n\
304 --font, -fn FONT default font; must be fixed-width\n\
305 --foreground-color, -fg COLOR window foreground color\n\
306 --fullheight, -fh make the first frame high as the screen\n\
307 --fullscreen, -fs make first frame fullscreen\n\
308 --fullwidth, -fw make the first frame wide as the screen\n\
309 --geometry, -g GEOMETRY window geometry\n\
310 --icon-type, -i use picture of gnu for Emacs icon\n\
311 --iconic start Emacs in iconified state\n\
312 --internal-border, -ib WIDTH width between text and main border\n\
313 --line-spacing, -lsp PIXELS additional space to put between lines\n\
314 --mouse-color, -ms COLOR mouse cursor color in Emacs window\n\
315 --name NAME title for initial Emacs frame\n\
316 --no-blinking-cursor, -nbc disable blinking cursor\n\
317 --reverse-video, -r, -rv switch foreground and background\n\
318 --title, -T TITLE title for initial Emacs frame\n\
319 --vertical-scroll-bars, -vb enable vertical scroll bars\n\
320 --xrm XRESOURCES set additional X resources\n\
321 --help display this help and exit\n\
322 --version output version information and exit\n\
324 You can generally also specify long option names with a single -; for\n\
325 example, -batch as well as --batch. You can use any unambiguous\n\
326 abbreviation for a --option.\n\
328 Various environment variables and window system resources also affect\n\
329 Emacs' operation. See the main documentation.\n\
333 Report bugs to %s. First, please see the Bugs\n\
334 section of the Emacs manual or the file BUGS.\n"
337 /* Signal code for the fatal signal that was received. */
338 int fatal_error_code
;
340 /* Nonzero if handling a fatal error already. */
341 int fatal_error_in_progress
;
343 /* If non-null, call this function from fatal_error_signal before
344 committing suicide. */
346 void (*fatal_error_signal_hook
) P_ ((void));
348 #ifdef HAVE_GTK_AND_PTHREAD
349 /* When compiled with GTK and running under Gnome, multiple threads meay be
350 created. Keep track of our main thread to make sure signals are delivered
351 to it (see syssignal.h). */
353 pthread_t main_thread
;
359 handle_USR1_signal (sig
)
362 struct input_event buf
;
364 SIGNAL_THREAD_CHECK (sig
);
365 bzero (&buf
, sizeof buf
);
366 buf
.kind
= USER_SIGNAL_EVENT
;
367 buf
.frame_or_window
= selected_frame
;
369 kbd_buffer_store_event (&buf
);
375 handle_USR2_signal (sig
)
378 struct input_event buf
;
380 SIGNAL_THREAD_CHECK (sig
);
381 bzero (&buf
, sizeof buf
);
382 buf
.kind
= USER_SIGNAL_EVENT
;
384 buf
.frame_or_window
= selected_frame
;
386 kbd_buffer_store_event (&buf
);
390 /* Handle bus errors, invalid instruction, etc. */
392 fatal_error_signal (sig
)
395 SIGNAL_THREAD_CHECK (sig
);
396 fatal_error_code
= sig
;
397 signal (sig
, SIG_DFL
);
399 TOTALLY_UNBLOCK_INPUT
;
401 /* If fatal error occurs in code below, avoid infinite recursion. */
402 if (! fatal_error_in_progress
)
404 fatal_error_in_progress
= 1;
406 shut_down_emacs (sig
, 0, Qnil
);
410 LIB$
STOP (SS$_ABORT
);
412 /* Signal the same code; this time it will really be fatal.
413 Remember that since we're in a signal handler, the signal we're
414 going to send is probably blocked, so we have to unblock it if we
415 want to really receive it. */
417 sigunblock (sigmask (fatal_error_code
));
420 if (fatal_error_signal_hook
)
421 fatal_error_signal_hook ();
423 kill (getpid (), fatal_error_code
);
429 /* Handler for SIGDANGER. */
431 memory_warning_signal (sig
)
434 signal (sig
, memory_warning_signal
);
435 SIGNAL_THREAD_CHECK (sig
);
437 malloc_warning ("Operating system warns that virtual memory is running low.\n");
439 /* It might be unsafe to call do_auto_save now. */
440 force_auto_save_soon ();
444 /* We define abort, rather than using it from the library,
445 so that GDB can return from a breakpoint here.
446 MSDOS has its own definition in msdos.c. */
448 #if ! defined (DOS_NT) && ! defined (NO_ABORT)
450 #ifndef ABORT_RETURN_TYPE
451 #define ABORT_RETURN_TYPE void
457 kill (getpid (), SIGABRT
);
458 /* This shouldn't be executed, but it prevents a warning. */
464 /* Code for dealing with Lisp access to the Unix command line. */
467 init_cmdargs (argc
, argv
, skip_args
)
473 Lisp_Object name
, dir
, tem
;
474 int count
= SPECPDL_INDEX ();
475 Lisp_Object raw_name
;
480 raw_name
= build_string (argv
[0]);
482 /* Add /: to the front of the name
483 if it would otherwise be treated as magic. */
484 tem
= Ffind_file_name_handler (raw_name
, Qt
);
486 raw_name
= concat2 (build_string ("/:"), raw_name
);
488 Vinvocation_name
= Ffile_name_nondirectory (raw_name
);
489 Vinvocation_directory
= Ffile_name_directory (raw_name
);
491 /* If we got no directory in argv[0], search PATH to find where
492 Emacs actually came from. */
493 if (NILP (Vinvocation_directory
))
496 int yes
= openp (Vexec_path
, Vinvocation_name
,
497 Vexec_suffixes
, &found
, make_number (X_OK
));
500 /* Add /: to the front of the name
501 if it would otherwise be treated as magic. */
502 tem
= Ffind_file_name_handler (found
, Qt
);
504 found
= concat2 (build_string ("/:"), found
);
505 Vinvocation_directory
= Ffile_name_directory (found
);
509 if (!NILP (Vinvocation_directory
)
510 && NILP (Ffile_name_absolute_p (Vinvocation_directory
)))
511 /* Emacs was started with relative path, like ./emacs.
513 Vinvocation_directory
= Fexpand_file_name (Vinvocation_directory
, Qnil
);
515 Vinstallation_directory
= Qnil
;
517 if (!NILP (Vinvocation_directory
))
519 dir
= Vinvocation_directory
;
520 name
= Fexpand_file_name (Vinvocation_name
, dir
);
523 Lisp_Object tem
, lib_src_exists
;
524 Lisp_Object etc_exists
, info_exists
;
526 /* See if dir contains subdirs for use by Emacs.
527 Check for the ones that would exist in a build directory,
528 not including lisp and info. */
529 tem
= Fexpand_file_name (build_string ("lib-src"), dir
);
530 lib_src_exists
= Ffile_exists_p (tem
);
533 /* MSDOS installations frequently remove lib-src, but we still
534 must set installation-directory, or else info won't find
535 its files (it uses the value of installation-directory). */
536 tem
= Fexpand_file_name (build_string ("info"), dir
);
537 info_exists
= Ffile_exists_p (tem
);
542 if (!NILP (lib_src_exists
) || !NILP (info_exists
))
544 tem
= Fexpand_file_name (build_string ("etc"), dir
);
545 etc_exists
= Ffile_exists_p (tem
);
546 if (!NILP (etc_exists
))
548 Vinstallation_directory
549 = Ffile_name_as_directory (dir
);
554 /* See if dir's parent contains those subdirs. */
555 tem
= Fexpand_file_name (build_string ("../lib-src"), dir
);
556 lib_src_exists
= Ffile_exists_p (tem
);
560 /* See the MSDOS commentary above. */
561 tem
= Fexpand_file_name (build_string ("../info"), dir
);
562 info_exists
= Ffile_exists_p (tem
);
567 if (!NILP (lib_src_exists
) || !NILP (info_exists
))
569 tem
= Fexpand_file_name (build_string ("../etc"), dir
);
570 etc_exists
= Ffile_exists_p (tem
);
571 if (!NILP (etc_exists
))
573 tem
= Fexpand_file_name (build_string (".."), dir
);
574 Vinstallation_directory
575 = Ffile_name_as_directory (tem
);
580 /* If the Emacs executable is actually a link,
581 next try the dir that the link points into. */
582 tem
= Ffile_symlink_p (name
);
585 name
= Fexpand_file_name (tem
, dir
);
586 dir
= Ffile_name_directory (name
);
593 Vcommand_line_args
= Qnil
;
595 for (i
= argc
- 1; i
>= 0; i
--)
597 if (i
== 0 || i
> skip_args
)
598 /* For the moment, we keep arguments as is in unibyte strings.
599 They are decoded in the function command-line after we know
600 locale-coding-system. */
602 = Fcons (make_unibyte_string (argv
[i
], strlen (argv
[i
])),
606 unbind_to (count
, Qnil
);
609 DEFUN ("invocation-name", Finvocation_name
, Sinvocation_name
, 0, 0, 0,
610 doc
: /* Return the program name that was used to run Emacs.
611 Any directory names are omitted. */)
614 return Fcopy_sequence (Vinvocation_name
);
617 DEFUN ("invocation-directory", Finvocation_directory
, Sinvocation_directory
,
619 doc
: /* Return the directory name in which the Emacs executable was located. */)
622 return Fcopy_sequence (Vinvocation_directory
);
627 #ifdef LINK_CRTL_SHARE
628 #ifdef SHARABLE_LIB_BUG
629 extern noshare
char **environ
;
630 #endif /* SHARABLE_LIB_BUG */
631 #endif /* LINK_CRTL_SHARE */
635 /* A valid but unlikely value for the TZ environment value.
636 It is OK (though a bit slower) if the user actually chooses this value. */
637 static char dump_tz
[] = "UtC0";
640 #ifndef ORDINARY_LINK
641 /* We don't include crtbegin.o and crtend.o in the link,
642 so these functions and variables might be missed.
643 Provide dummy definitions to avoid error.
644 (We don't have any real constructors or destructors.) */
646 #ifndef GCC_CTORS_IN_LIBC
647 void __do_global_ctors ()
649 void __do_global_ctors_aux ()
651 void __do_global_dtors ()
653 /* GNU/Linux has a bug in its library; avoid an error. */
655 char * __CTOR_LIST__
[2] = { (char *) (-1), 0 };
657 char * __DTOR_LIST__
[2] = { (char *) (-1), 0 };
658 #endif /* GCC_CTORS_IN_LIBC */
661 #endif /* __GNUC__ */
662 #endif /* ORDINARY_LINK */
664 /* Test whether the next argument in ARGV matches SSTR or a prefix of
665 LSTR (at least MINLEN characters). If so, then if VALPTR is non-null
666 (the argument is supposed to have a value) store in *VALPTR either
667 the next argument or the portion of this one after the equal sign.
668 ARGV is read starting at position *SKIPPTR; this index is advanced
669 by the number of arguments used.
671 Too bad we can't just use getopt for all of this, but we don't have
672 enough information to do it right. */
675 argmatch (argv
, argc
, sstr
, lstr
, minlen
, valptr
, skipptr
)
688 /* Don't access argv[argc]; give up in advance. */
689 if (argc
<= *skipptr
+ 1)
692 arg
= argv
[*skipptr
+1];
695 if (strcmp (arg
, sstr
) == 0)
699 *valptr
= argv
[*skipptr
+2];
706 arglen
= (valptr
!= NULL
&& (p
= index (arg
, '=')) != NULL
707 ? p
- arg
: strlen (arg
));
708 if (lstr
== 0 || arglen
< minlen
|| strncmp (arg
, lstr
, arglen
) != 0)
710 else if (valptr
== NULL
)
721 else if (argv
[*skipptr
+2] != NULL
)
723 *valptr
= argv
[*skipptr
+2];
733 #ifdef DOUG_LEA_MALLOC
735 /* malloc can be invoked even before main (e.g. by the dynamic
736 linker), so the dumped malloc state must be restored as early as
737 possible using this special hook. */
740 malloc_initialize_hook ()
743 extern char **environ
;
748 if (!malloc_using_checking
)
749 /* Work around a bug in glibc's malloc. MALLOC_CHECK_ must be
750 ignored if the heap to be restored was constructed without
751 malloc checking. Can't use unsetenv, since that calls malloc. */
755 for (p
= environ
; p
&& *p
; p
++)
756 if (strncmp (*p
, "MALLOC_CHECK_=", 14) == 0)
765 malloc_set_state (malloc_state_ptr
);
766 #ifndef XMALLOC_OVERRUN_CHECK
767 free (malloc_state_ptr
);
772 if (my_heap_start
== 0)
773 my_heap_start
= sbrk (0);
774 malloc_using_checking
= getenv ("MALLOC_CHECK_") != NULL
;
778 void (*__malloc_initialize_hook
) () = malloc_initialize_hook
;
780 #endif /* DOUG_LEA_MALLOC */
783 #define REPORT_EMACS_BUG_ADDRESS "bug-gnu-emacs@gnu.org"
784 #define REPORT_EMACS_BUG_PRETEST_ADDRESS "emacs-pretest-bug@gnu.org"
786 /* This function is used to determine an address to which bug report should
790 bug_reporting_address ()
796 temp
= Fsymbol_value (intern ("emacs-version"));
798 /* When `emacs-version' is invalid, use normal address. */
800 return REPORT_EMACS_BUG_ADDRESS
;
802 string
= SDATA (temp
);
804 /* Count dots in `emacs-version'. */
812 /* When `emacs-version' has at least three dots, it is development or
813 pretest version of Emacs. */
814 return count
>= 3 ? REPORT_EMACS_BUG_PRETEST_ADDRESS
: REPORT_EMACS_BUG_ADDRESS
;
834 char stack_bottom_variable
;
835 int do_initial_setlocale
;
840 #ifdef HAVE_SETRLIMIT
847 extern Lisp_Object
*stack_base
;
853 extern char my_endbss
[];
854 extern char *my_endbss_static
;
856 if (my_heap_start
== 0)
857 my_heap_start
= sbrk (0);
859 heap_bss_diff
= (char *)my_heap_start
- max (my_endbss
, my_endbss_static
);
862 #ifdef LINUX_SBRK_BUG
866 #ifdef RUN_TIME_REMAP
868 run_time_remap (argv
[0]);
873 unexec_init_emacs_zone ();
876 sort_args (argc
, argv
);
878 while (argv
[argc
]) argc
++;
880 if (argmatch (argv
, argc
, "-version", "--version", 3, NULL
, &skip_args
)
881 /* We don't know the version number unless this is a dumped Emacs.
882 So ignore --version otherwise. */
886 tem
= Fsymbol_value (intern ("emacs-version"));
889 fprintf (stderr
, "Invalid value of `emacs-version'\n");
894 printf ("GNU Emacs %s\n", SDATA (tem
));
895 printf ("Copyright (C) 2004 Free Software Foundation, Inc.\n");
896 printf ("GNU Emacs comes with ABSOLUTELY NO WARRANTY.\n");
897 printf ("You may redistribute copies of Emacs\n");
898 printf ("under the terms of the GNU General Public License.\n");
899 printf ("For more information about these matters, ");
900 printf ("see the file named COPYING.\n");
905 #ifdef HAVE_PERSONALITY_LINUX32
906 /* See if there is a gap between the end of BSS and the heap.
907 In that case, set personality and exec ourself again. */
909 && (strcmp (argv
[argc
-1], "dump") == 0
910 || strcmp (argv
[argc
-1], "bootstrap") == 0)
911 && heap_bss_diff
> MAX_HEAP_BSS_DIFF
)
913 if (! getenv ("EMACS_HEAP_EXEC"))
915 /* Set this so we only do this once. */
916 putenv("EMACS_HEAP_EXEC=true");
917 personality (PER_LINUX32
);
918 execvp (argv
[0], argv
);
920 /* If the exec fails, try to dump anyway. */
924 #endif /* HAVE_PERSONALITY_LINUX32 */
927 /* Map in shared memory, if we are using that. */
929 if (argmatch (argv
, argc
, "-nl", "--no-shared-memory", 6, NULL
, &skip_args
))
932 /* The shared memory was just restored, which clobbered this. */
938 /* The shared memory was just restored, which clobbered this. */
945 extern int malloc_cookie
;
946 /* This helps out unexnext.c. */
948 if (malloc_jumpstart (malloc_cookie
) != 0)
949 printf ("malloc jumpstart failed!\n");
954 /* Skip process serial number passed in the form -psn_x_y as
955 command-line argument. */
956 if (argc
> skip_args
+ 1 && strncmp (argv
[skip_args
+1], "-psn_", 5) == 0)
961 /* If -map specified, map the data file in. */
964 if (argmatch (argv
, argc
, "-map", "--map-data", 3, &file
, &skip_args
))
968 #ifdef LINK_CRTL_SHARE
969 #ifdef SHARABLE_LIB_BUG
970 /* Bletcherous shared libraries! */
972 stdin
= fdopen (0, "r");
974 stdout
= fdopen (1, "w");
976 stderr
= fdopen (2, "w");
979 #endif /* SHARABLE_LIB_BUG */
980 #endif /* LINK_CRTL_SHARE */
983 #if defined (HAVE_SETRLIMIT) && defined (RLIMIT_STACK)
984 /* Extend the stack space available.
985 Don't do that if dumping, since some systems (e.g. DJGPP)
986 might define a smaller stack limit at that time. */
989 && (!noninteractive
|| initialized
)
991 && !getrlimit (RLIMIT_STACK
, &rlim
))
994 extern int re_max_failures
;
995 /* Approximate the amount regex.c needs per unit of re_max_failures. */
996 int ratio
= 20 * sizeof (char *);
997 /* Then add 33% to cover the size of the smaller stacks that regex.c
998 successively allocates and discards, on its way to the maximum. */
1000 /* Add in some extra to cover
1001 what we're likely to use for other reasons. */
1002 newlim
= re_max_failures
* ratio
+ 200000;
1004 /* NetBSD (at least NetBSD 1.2G and former) has a bug in its
1005 stack allocation routine for new process that the allocation
1006 fails if stack limit is not on page boundary. So, round up the
1007 new limit to page boundary. */
1008 newlim
= (newlim
+ getpagesize () - 1) / getpagesize () * getpagesize();
1010 if (newlim
> rlim
.rlim_max
)
1012 newlim
= rlim
.rlim_max
;
1013 /* Don't let regex.c overflow the stack we have. */
1014 re_max_failures
= (newlim
- 200000) / ratio
;
1016 if (rlim
.rlim_cur
< newlim
)
1017 rlim
.rlim_cur
= newlim
;
1019 setrlimit (RLIMIT_STACK
, &rlim
);
1021 #endif /* HAVE_SETRLIMIT and RLIMIT_STACK */
1023 /* Record (approximately) where the stack begins. */
1024 stack_bottom
= &stack_bottom_variable
;
1026 #ifdef USG_SHARED_LIBRARIES
1028 brk ((void *)bss_end
);
1033 #ifndef SYSTEM_MALLOC
1034 /* Arrange to get warning messages as memory fills up. */
1035 memory_warnings (0, malloc_warning
);
1037 /* Call malloc at least once, to run the initial __malloc_hook.
1038 Also call realloc and free for consistency. */
1039 free (realloc (malloc (4), 4));
1042 /* Arrange to disable interrupt input inside malloc etc. */
1043 uninterrupt_malloc ();
1044 # endif /* not SYNC_INPUT */
1045 #endif /* not SYSTEM_MALLOC */
1047 #ifdef HAVE_GTK_AND_PTHREAD
1048 main_thread
= pthread_self ();
1049 #endif /* HAVE_GTK_AND_PTHREAD */
1051 #if defined (MSDOS) || defined (WINDOWSNT)
1052 /* We do all file input/output as binary files. When we need to translate
1053 newlines, we do that manually. */
1055 #endif /* MSDOS || WINDOWSNT */
1059 if (!isatty (fileno (stdin
)))
1060 setmode (fileno (stdin
), O_BINARY
);
1061 if (!isatty (fileno (stdout
)))
1064 setmode (fileno (stdout
), O_BINARY
);
1066 #else /* not __DJGPP__ >= 2 */
1067 (stdin
)->_flag
&= ~_IOTEXT
;
1068 (stdout
)->_flag
&= ~_IOTEXT
;
1069 (stderr
)->_flag
&= ~_IOTEXT
;
1070 #endif /* not __DJGPP__ >= 2 */
1073 #ifdef SET_EMACS_PRIORITY
1075 nice (emacs_priority
);
1077 #endif /* SET_EMACS_PRIORITY */
1079 /* Skip initial setlocale if LC_ALL is "C", as it's not needed in that case.
1080 The build procedure uses this while dumping, to ensure that the
1081 dumped Emacs does not have its system locale tables initialized,
1082 as that might cause screwups when the dumped Emacs starts up. */
1084 char *lc_all
= getenv ("LC_ALL");
1085 do_initial_setlocale
= ! lc_all
|| strcmp (lc_all
, "C");
1088 /* Set locale now, so that initial error messages are localized properly.
1089 fixup_locale must wait until later, since it builds strings. */
1090 if (do_initial_setlocale
)
1091 setlocale (LC_ALL
, "");
1093 #ifdef EXTRA_INITIALIZE
1097 inhibit_window_system
= 0;
1099 /* Handle the -t switch, which specifies filename to use as terminal. */
1103 if (argmatch (argv
, argc
, "-t", "--terminal", 4, &term
, &skip_args
))
1108 result
= emacs_open (term
, O_RDWR
, 0);
1111 char *errstring
= strerror (errno
);
1112 fprintf (stderr
, "%s: %s: %s\n", argv
[0], term
, errstring
);
1118 fprintf (stderr
, "%s: %s: not a tty\n", argv
[0], term
);
1121 fprintf (stderr
, "Using %s\n", term
);
1122 #ifdef HAVE_WINDOW_SYSTEM
1123 inhibit_window_system
= 1; /* -t => -nw */
1130 /* Command line option --no-windows is deprecated and thus not mentioned
1131 in the manual and usage informations. */
1132 if (argmatch (argv
, argc
, "-nw", "--no-window-system", 6, NULL
, &skip_args
)
1133 || argmatch (argv
, argc
, "-nw", "--no-windows", 6, NULL
, &skip_args
))
1134 inhibit_window_system
= 1;
1136 /* Handle the -batch switch, which means don't do interactive display. */
1138 if (argmatch (argv
, argc
, "-batch", "--batch", 5, NULL
, &skip_args
))
1141 Vundo_outer_limit
= Qnil
;
1143 if (argmatch (argv
, argc
, "-script", "--script", 3, &junk
, &skip_args
))
1145 noninteractive
= 1; /* Set batch mode. */
1146 /* Convert --script to -l, un-skip it, and sort again so that -l will be
1147 handled in proper sequence. */
1148 argv
[skip_args
- 1] = "-l";
1150 sort_args (argc
, argv
);
1153 /* Handle the --help option, which gives a usage message. */
1154 if (argmatch (argv
, argc
, "-help", "--help", 3, NULL
, &skip_args
))
1156 printf (USAGE1
, argv
[0], USAGE2
);
1158 printf (USAGE4
, bug_reporting_address ());
1162 if (! noninteractive
)
1167 inherited_pgroup
= EMACS_GETPGRP (0);
1168 setpgrp (0, getpid ());
1171 #if defined (USG5) && defined (INTERRUPT_INPUT)
1179 /* Don't catch SIGHUP if dumping. */
1186 sigblock (sigmask (SIGHUP
));
1187 /* In --batch mode, don't catch SIGHUP if already ignored.
1188 That makes nohup work. */
1189 if (! noninteractive
1190 || signal (SIGHUP
, SIG_IGN
) != SIG_IGN
)
1191 signal (SIGHUP
, fatal_error_signal
);
1192 sigunblock (sigmask (SIGHUP
));
1197 ! noninteractive
|| initialized
1203 /* Don't catch these signals in batch mode if dumping.
1204 On some machines, this sets static data that would make
1205 signal fail to work right when the dumped Emacs is run. */
1206 signal (SIGQUIT
, fatal_error_signal
);
1207 signal (SIGILL
, fatal_error_signal
);
1208 signal (SIGTRAP
, fatal_error_signal
);
1210 signal (SIGUSR1
, handle_USR1_signal
);
1212 signal (SIGUSR2
, handle_USR2_signal
);
1216 signal (SIGABRT
, fatal_error_signal
);
1219 signal (SIGHWE
, fatal_error_signal
);
1222 signal (SIGPRE
, fatal_error_signal
);
1225 signal (SIGORE
, fatal_error_signal
);
1228 signal (SIGUME
, fatal_error_signal
);
1231 signal (SIGDLK
, fatal_error_signal
);
1234 signal (SIGCPULIM
, fatal_error_signal
);
1237 /* This is missing on some systems - OS/2, for example. */
1238 signal (SIGIOT
, fatal_error_signal
);
1241 signal (SIGEMT
, fatal_error_signal
);
1243 signal (SIGFPE
, fatal_error_signal
);
1245 signal (SIGBUS
, fatal_error_signal
);
1247 signal (SIGSEGV
, fatal_error_signal
);
1249 signal (SIGSYS
, fatal_error_signal
);
1251 signal (SIGTERM
, fatal_error_signal
);
1253 signal (SIGXCPU
, fatal_error_signal
);
1256 signal (SIGXFSZ
, fatal_error_signal
);
1257 #endif /* SIGXFSZ */
1260 /* This just means available memory is getting low. */
1261 signal (SIGDANGER
, memory_warning_signal
);
1265 /* 20 is SIGCHLD, 21 is SIGTTIN, 22 is SIGTTOU. */
1266 signal (SIGXCPU
, fatal_error_signal
);
1268 signal (SIGIOINT
, fatal_error_signal
);
1270 signal (SIGGRANT
, fatal_error_signal
);
1271 signal (SIGRETRACT
, fatal_error_signal
);
1272 signal (SIGSOUND
, fatal_error_signal
);
1273 signal (SIGMSG
, fatal_error_signal
);
1277 noninteractive1
= noninteractive
;
1279 /* Perform basic initializations (not merely interning symbols). */
1286 init_character_once ();
1287 init_charset_once ();
1288 init_coding_once ();
1289 init_syntax_once (); /* Create standard syntax table. */
1290 init_category_once (); /* Create standard category table. */
1291 /* Must be done before init_buffer. */
1292 init_casetab_once ();
1293 init_buffer_once (); /* Create buffer table and some buffers. */
1294 init_minibuf_once (); /* Create list of minibuffers. */
1295 /* Must precede init_window_once. */
1297 /* Call syms_of_xfaces before init_window_once because that
1298 function creates Vterminal_frame. Termcap frames now use
1299 faces, and the face implementation uses some symbols as
1302 /* Call syms_of_keyboard before init_window_once because
1303 keyboard sets up symbols that include some face names that
1304 the X support will want to use. This can happen when
1305 CANNOT_DUMP is defined. */
1306 syms_of_keyboard ();
1309 /* init_window_once calls make_terminal_frame which on Mac OS
1310 creates a full-fledge output_mac type frame. This does not
1311 work correctly before syms_of_textprop, syms_of_macfns,
1312 syms_of_ccl, syms_of_fontset, syms_of_xterm, syms_of_search,
1313 syms_of_frame, mac_term_init, and init_keyboard have already
1315 syms_of_textprop ();
1325 mac_term_init (build_string ("Mac"), NULL
, NULL
);
1329 init_window_once (); /* Init the window system. */
1330 init_fileio_once (); /* Must precede any path manipulation. */
1331 #ifdef HAVE_WINDOW_SYSTEM
1332 init_fringe_once (); /* Swap bitmaps if necessary. */
1333 #endif /* HAVE_WINDOW_SYSTEM */
1338 if (do_initial_setlocale
)
1341 Vsystem_messages_locale
= Vprevious_system_messages_locale
;
1342 Vsystem_time_locale
= Vprevious_system_time_locale
;
1347 #ifdef CLASH_DETECTION
1351 running_asynch_code
= 0;
1353 /* Handle --unibyte and the EMACS_UNIBYTE envvar,
1354 but not while dumping. */
1357 int inhibit_unibyte
= 0;
1359 /* --multibyte overrides EMACS_UNIBYTE. */
1360 if (argmatch (argv
, argc
, "-no-unibyte", "--no-unibyte", 4, NULL
, &skip_args
)
1361 || argmatch (argv
, argc
, "-multibyte", "--multibyte", 4, NULL
, &skip_args
)
1362 /* Ignore EMACS_UNIBYTE before dumping. */
1363 || (!initialized
&& noninteractive
))
1364 inhibit_unibyte
= 1;
1366 /* --unibyte requests that we set up to do everything with single-byte
1367 buffers and strings. We need to handle this before calling
1368 init_lread, init_editfns and other places that generate Lisp strings
1369 from text in the environment. */
1370 /* Actually this shouldn't be needed as of 20.4 in a generally
1371 unibyte environment. As handa says, environment values
1372 aren't now decoded; also existing buffers are now made
1373 unibyte during startup if .emacs sets unibyte. Tested with
1374 8-bit data in environment variables and /etc/passwd, setting
1375 unibyte and Latin-1 in .emacs. -- Dave Love */
1376 if (argmatch (argv
, argc
, "-unibyte", "--unibyte", 4, NULL
, &skip_args
)
1377 || argmatch (argv
, argc
, "-no-multibyte", "--no-multibyte", 4, NULL
, &skip_args
)
1378 || (getenv ("EMACS_UNIBYTE") && !inhibit_unibyte
))
1380 Lisp_Object old_log_max
;
1381 Lisp_Object symbol
, tail
;
1383 symbol
= intern ("default-enable-multibyte-characters");
1384 Fset (symbol
, Qnil
);
1388 /* Erase pre-dump messages in *Messages* now so no abort. */
1389 old_log_max
= Vmessage_log_max
;
1390 XSETFASTINT (Vmessage_log_max
, 0);
1391 message_dolog ("", 0, 1, 0);
1392 Vmessage_log_max
= old_log_max
;
1395 for (tail
= Vbuffer_alist
; CONSP (tail
);
1400 buffer
= Fcdr (XCAR (tail
));
1401 /* Make a multibyte buffer unibyte. */
1402 if (BUF_Z_BYTE (XBUFFER (buffer
)) > BUF_Z (XBUFFER (buffer
)))
1404 struct buffer
*current
= current_buffer
;
1406 set_buffer_temp (XBUFFER (buffer
));
1407 Fset_buffer_multibyte (Qnil
);
1408 set_buffer_temp (current
);
1415 = argmatch (argv
, argc
, "-nl", "--no-loadup", 6, NULL
, &skip_args
);
1418 #ifdef HAVE_X_WINDOWS
1419 /* Stupid kludge to catch command-line display spec. We can't
1420 handle this argument entirely in window system dependent code
1421 because we don't even know which window system dependent code
1422 to run until we've recognized this argument. */
1424 char *displayname
= 0;
1425 int count_before
= skip_args
;
1427 /* Skip any number of -d options, but only use the last one. */
1430 int count_before_this
= skip_args
;
1432 if (argmatch (argv
, argc
, "-d", "--display", 3, &displayname
, &skip_args
))
1434 else if (argmatch (argv
, argc
, "-display", 0, 3, &displayname
, &skip_args
))
1439 count_before
= count_before_this
;
1442 /* If we have the form --display=NAME,
1443 convert it into -d name.
1444 This requires inserting a new element into argv. */
1445 if (displayname
!= 0 && skip_args
- count_before
== 1)
1447 char **new = (char **) xmalloc (sizeof (char *) * (argc
+ 2));
1450 for (j
= 0; j
< count_before
+ 1; j
++)
1452 new[count_before
+ 1] = "-d";
1453 new[count_before
+ 2] = displayname
;
1454 for (j
= count_before
+ 2; j
<argc
; j
++)
1455 new[j
+ 1] = argv
[j
];
1459 /* Change --display to -d, when its arg is separate. */
1460 else if (displayname
!= 0 && skip_args
> count_before
1461 && argv
[count_before
+ 1][1] == '-')
1462 argv
[count_before
+ 1] = "-d";
1464 /* Don't actually discard this arg. */
1465 skip_args
= count_before
;
1469 /* argmatch must not be used after here,
1470 except when bulding temacs
1471 because the -d argument has not been skipped in skip_args. */
1474 /* Call early 'cause init_environment needs it. */
1476 /* Set defaults for several environment variables. */
1478 init_environment (argc
, argv
, skip_args
);
1485 /* Initialize environment from registry settings. */
1486 init_environment (argv
);
1487 init_ntproc (); /* must precede init_editfns. */
1490 #if defined (MAC_OSX) && defined (HAVE_CARBON)
1492 init_mac_osx_environment ();
1495 /* egetenv is a pretty low-level facility, which may get called in
1496 many circumstances; it seems flimsy to put off initializing it
1497 until calling init_callproc. */
1498 set_process_environment ();
1499 /* AIX crashes are reported in system versions 3.2.3 and 3.2.4
1500 if this is not done. Do it after set_process_environment so that we
1501 don't pollute Vprocess_environment. */
1502 /* Setting LANG here will defeat the startup locale processing... */
1507 init_buffer (); /* Init default directory of main buffer. */
1509 init_callproc_1 (); /* Must precede init_cmdargs and init_sys_modes. */
1510 init_cmdargs (argc
, argv
, skip_args
); /* Must precede init_lread. */
1514 /* Erase any pre-dump messages in the message log, to avoid confusion. */
1515 Lisp_Object old_log_max
;
1516 old_log_max
= Vmessage_log_max
;
1517 XSETFASTINT (Vmessage_log_max
, 0);
1518 message_dolog ("", 0, 1, 0);
1519 Vmessage_log_max
= old_log_max
;
1522 init_callproc (); /* Must follow init_cmdargs but not init_sys_modes. */
1525 /* Intern the names of all standard functions and variables;
1526 define standard keys. */
1530 /* The basic levels of Lisp must come first. */
1531 /* And data must come first of all
1532 for the sake of symbols like error-message. */
1534 /* Called before init_window_once for Mac OS Classic. */
1543 syms_of_floatfns ();
1547 syms_of_bytecode ();
1549 syms_of_casefiddle ();
1551 syms_of_callproc ();
1552 syms_of_category ();
1554 /* Called before init_window_once for Mac OS Classic. */
1557 syms_of_character ();
1560 #ifndef NO_DIR_LIBRARY
1562 #endif /* not NO_DIR_LIBRARY */
1568 syms_of_coding (); /* This should be after syms_of_fileio. */
1569 #ifdef CLASH_DETECTION
1570 syms_of_filelock ();
1571 #endif /* CLASH_DETECTION */
1580 /* Called before init_window_once for Mac OS Classic. */
1591 /* Called before init_window_once for Mac OS Classic. */
1592 syms_of_textprop ();
1594 syms_of_composite ();
1600 #endif /* WINDOWSNT */
1603 #ifdef HAVE_WINDOW_SYSTEM
1606 #endif /* HAVE_WINDOW_SYSTEM */
1607 #ifdef HAVE_X_WINDOWS
1617 #endif /* HAVE_X_WINDOWS */
1622 /* Called before init_window_once for Mac OS Classic. */
1631 syms_of_w32select ();
1634 #endif /* HAVE_NTGUI */
1636 #if defined (MAC_OSX) && defined (HAVE_CARBON)
1641 #endif /* MAC_OSX && HAVE_CARBON */
1651 keys_of_casefiddle ();
1654 keys_of_keyboard ();
1661 /* Initialization that must be done even if the global variable
1662 initialized is non zero. */
1664 globals_of_w32fns ();
1665 globals_of_w32menu ();
1666 globals_of_w32select ();
1667 #endif /* HAVE_NTGUI */
1672 if (!noninteractive
)
1675 init_vms_input ();/* init_display calls get_frame_size, that needs this. */
1677 init_display (); /* Determine terminal type. init_sys_modes uses results. */
1680 /* Called before init_window_once for Mac OS Classic. */
1681 init_keyboard (); /* This too must precede init_sys_modes. */
1684 init_vmsproc (); /* And this too. */
1686 init_sys_modes (); /* Init system terminal modes (RAW or CBREAK, etc.). */
1689 #ifdef HAVE_WINDOW_SYSTEM
1692 #endif /* HAVE_WINDOW_SYSTEM */
1708 /* Handle -l loadup, args passed by Makefile. */
1709 if (argmatch (argv
, argc
, "-l", "--load", 3, &file
, &skip_args
))
1710 Vtop_level
= Fcons (intern ("load"),
1711 Fcons (build_string (file
), Qnil
));
1712 /* Unless next switch is -nl, load "loadup.el" first thing. */
1714 Vtop_level
= Fcons (intern ("load"),
1715 Fcons (build_string ("loadup.el"), Qnil
));
1722 /* If the execution TZ happens to be the same as the dump TZ,
1723 change it to some other value and then change it back,
1724 to force the underlying implementation to reload the TZ info.
1725 This is needed on implementations that load TZ info from files,
1726 since the TZ file contents may differ between dump and execution. */
1727 char *tz
= getenv ("TZ");
1728 if (tz
&& !strcmp (tz
, dump_tz
))
1738 /* Set up for profiling. This is known to work on FreeBSD and
1739 GNU/Linux. It might work on some other systems too. Give it a
1740 try and tell us if it works on your system. To compile for
1741 profiling use something like `make CFLAGS="-pg -g -O -DPROFILING=1'. */
1742 #if defined (__FreeBSD__) || defined (__linux)
1746 extern void _mcleanup ();
1748 extern void safe_bcopy ();
1749 extern void dump_opcode_frequencies ();
1752 /* This uses safe_bcopy because that function comes first in the
1753 Emacs executable. It might be better to use something that
1754 gives the start of the text segment, but start_of_text is not
1755 defined on all systems now. */
1756 monstartup (safe_bcopy
, &etext
);
1765 #ifdef LOCALTIME_CACHE
1766 /* Some versions of localtime have a bug. They cache the value of the time
1767 zone rather than looking it up every time. Since localtime() is
1768 called to bolt the undumping time into the undumped emacs, this
1769 results in localtime ignoring the TZ environment variable.
1770 This flushes the new TZ value into localtime. */
1772 #endif /* defined (LOCALTIME_CACHE) */
1774 /* Enter editor command loop. This never returns. */
1780 /* Sort the args so we can find the most important ones
1781 at the beginning of argv. */
1783 /* First, here's a table of all the standard options. */
1785 struct standard_args
1793 struct standard_args standard_args
[] =
1795 { "-version", "--version", 150, 0 },
1797 { "-nl", "--no-shared-memory", 140, 0 },
1800 { "-map", "--map-data", 130, 0 },
1802 { "-t", "--terminal", 120, 1 },
1803 { "-nw", "--no-window-system", 110, 0 },
1804 { "-nw", "--no-windows", 110, 0 },
1805 { "-batch", "--batch", 100, 0 },
1806 { "-script", "--script", 100, 1 },
1807 { "-help", "--help", 90, 0 },
1808 { "-no-unibyte", "--no-unibyte", 83, 0 },
1809 { "-multibyte", "--multibyte", 82, 0 },
1810 { "-unibyte", "--unibyte", 81, 0 },
1811 { "-no-multibyte", "--no-multibyte", 80, 0 },
1812 { "-nl", "--no-loadup", 70, 0 },
1813 /* -d must come last before the options handled in startup.el. */
1814 { "-d", "--display", 60, 1 },
1815 { "-display", 0, 60, 1 },
1816 /* Now for the options handled in startup.el. */
1817 { "-q", "--no-init-file", 50, 0 },
1818 { "-no-init-file", 0, 50, 0 },
1819 { "-no-site-file", "--no-site-file", 40, 0 },
1820 { "-no-splash", "--no-splash", 40, 0 },
1821 { "-u", "--user", 30, 1 },
1822 { "-user", 0, 30, 1 },
1823 { "-debug-init", "--debug-init", 20, 0 },
1824 { "-i", "--icon-type", 15, 0 },
1825 { "-itype", 0, 15, 0 },
1826 { "-iconic", "--iconic", 15, 0 },
1827 { "-bg", "--background-color", 10, 1 },
1828 { "-background", 0, 10, 1 },
1829 { "-fg", "--foreground-color", 10, 1 },
1830 { "-foreground", 0, 10, 1 },
1831 { "-bd", "--border-color", 10, 1 },
1832 { "-bw", "--border-width", 10, 1 },
1833 { "-ib", "--internal-border", 10, 1 },
1834 { "-ms", "--mouse-color", 10, 1 },
1835 { "-cr", "--cursor-color", 10, 1 },
1836 { "-nbc", "--no-blinking-cursor", 10, 0 },
1837 { "-fn", "--font", 10, 1 },
1838 { "-font", 0, 10, 1 },
1839 { "-fs", "--fullscreen", 10, 0 },
1840 { "-fw", "--fullwidth", 10, 0 },
1841 { "-fh", "--fullheight", 10, 0 },
1842 { "-g", "--geometry", 10, 1 },
1843 { "-geometry", 0, 10, 1 },
1844 { "-T", "--title", 10, 1 },
1845 { "-title", 0, 10, 1 },
1846 { "-name", "--name", 10, 1 },
1847 { "-xrm", "--xrm", 10, 1 },
1848 { "-r", "--reverse-video", 5, 0 },
1850 { "-reverse", 0, 5, 0 },
1851 { "-hb", "--horizontal-scroll-bars", 5, 0 },
1852 { "-vb", "--vertical-scroll-bars", 5, 0 },
1853 { "-color", "--color", 5, 0},
1854 /* These have the same priority as ordinary file name args,
1855 so they are not reordered with respect to those. */
1856 { "-L", "--directory", 0, 1 },
1857 { "-directory", 0, 0, 1 },
1858 { "-l", "--load", 0, 1 },
1859 { "-load", 0, 0, 1 },
1860 { "-f", "--funcall", 0, 1 },
1861 { "-funcall", 0, 0, 1 },
1862 { "-eval", "--eval", 0, 1 },
1863 { "-execute", "--execute", 0, 1 },
1864 { "-find-file", "--find-file", 0, 1 },
1865 { "-visit", "--visit", 0, 1 },
1866 { "-file", "--file", 0, 1 },
1867 { "-insert", "--insert", 0, 1 },
1868 /* This should be processed after ordinary file name args and the like. */
1869 { "-kill", "--kill", -10, 0 },
1872 /* Reorder the elements of ARGV (assumed to have ARGC elements)
1873 so that the highest priority ones come first.
1874 Do not change the order of elements of equal priority.
1875 If an option takes an argument, keep it and its argument together.
1877 If an option that takes no argument appears more
1878 than once, eliminate all but one copy of it. */
1881 sort_args (argc
, argv
)
1885 char **new = (char **) xmalloc (sizeof (char *) * argc
);
1886 /* For each element of argv,
1887 the corresponding element of options is:
1888 0 for an option that takes no arguments,
1889 1 for an option that takes one argument, etc.
1890 -1 for an ordinary non-option argument. */
1891 int *options
= (int *) xmalloc (sizeof (int) * argc
);
1892 int *priority
= (int *) xmalloc (sizeof (int) * argc
);
1894 int incoming_used
= 1;
1898 /* Categorize all the options,
1899 and figure out which argv elts are option arguments. */
1900 for (from
= 1; from
< argc
; from
++)
1904 if (argv
[from
][0] == '-')
1909 /* If we have found "--", don't consider
1910 any more arguments as options. */
1911 if (argv
[from
][1] == '-' && argv
[from
][2] == 0)
1913 /* Leave the "--", and everything following it, at the end. */
1914 for (; from
< argc
; from
++)
1916 priority
[from
] = -100;
1922 /* Look for a match with a known old-fashioned option. */
1923 for (i
= 0; i
< sizeof (standard_args
) / sizeof (standard_args
[0]); i
++)
1924 if (!strcmp (argv
[from
], standard_args
[i
].name
))
1926 options
[from
] = standard_args
[i
].nargs
;
1927 priority
[from
] = standard_args
[i
].priority
;
1928 if (from
+ standard_args
[i
].nargs
>= argc
)
1929 fatal ("Option `%s' requires an argument\n", argv
[from
]);
1930 from
+= standard_args
[i
].nargs
;
1934 /* Look for a match with a known long option.
1935 MATCH is -1 if no match so far, -2 if two or more matches so far,
1936 >= 0 (the table index of the match) if just one match so far. */
1937 if (argv
[from
][1] == '-')
1940 thislen
= strlen (argv
[from
]);
1941 equals
= index (argv
[from
], '=');
1943 thislen
= equals
- argv
[from
];
1946 i
< sizeof (standard_args
) / sizeof (standard_args
[0]); i
++)
1947 if (standard_args
[i
].longname
1948 && !strncmp (argv
[from
], standard_args
[i
].longname
,
1957 /* If we found exactly one match, use that. */
1960 options
[from
] = standard_args
[match
].nargs
;
1961 priority
[from
] = standard_args
[match
].priority
;
1962 /* If --OPTION=VALUE syntax is used,
1963 this option uses just one argv element. */
1966 if (from
+ options
[from
] >= argc
)
1967 fatal ("Option `%s' requires an argument\n", argv
[from
]);
1968 from
+= options
[from
];
1975 /* Copy the arguments, in order of decreasing priority, to NEW. */
1977 while (incoming_used
< argc
)
1980 int best_priority
= -9999;
1982 /* Find the highest priority remaining option.
1983 If several have equal priority, take the first of them. */
1984 for (from
= 1; from
< argc
; from
++)
1986 if (argv
[from
] != 0 && priority
[from
] > best_priority
)
1988 best_priority
= priority
[from
];
1991 /* Skip option arguments--they are tied to the options. */
1992 if (options
[from
] > 0)
1993 from
+= options
[from
];
1999 /* Copy the highest priority remaining option, with its args, to NEW.
2000 Unless it is a duplicate of the previous one. */
2001 if (! (options
[best
] == 0
2002 && ! strcmp (new[to
- 1], argv
[best
])))
2004 new[to
++] = argv
[best
];
2005 for (i
= 0; i
< options
[best
]; i
++)
2006 new[to
++] = argv
[best
+ i
+ 1];
2009 incoming_used
+= 1 + (options
[best
] > 0 ? options
[best
] : 0);
2011 /* Clear out this option in ARGV. */
2013 for (i
= 0; i
< options
[best
]; i
++)
2014 argv
[best
+ i
+ 1] = 0;
2017 /* If duplicate options were deleted, fill up extra space with null ptrs. */
2021 bcopy (new, argv
, sizeof (char *) * argc
);
2028 DEFUN ("kill-emacs", Fkill_emacs
, Skill_emacs
, 0, 1, "P",
2029 doc
: /* Exit the Emacs job and kill it.
2030 If ARG is an integer, return ARG as the exit program code.
2031 If ARG is a string, stuff it as keyboard input.
2033 The value of `kill-emacs-hook', if not void,
2034 is a list of functions (of no args),
2035 all of which are called before Emacs is actually killed. */)
2039 struct gcpro gcpro1
;
2046 if (!NILP (Vrun_hooks
) && !noninteractive
)
2047 call1 (Vrun_hooks
, intern ("kill-emacs-hook"));
2051 /* Is it really necessary to do this deassign
2052 when we are going to exit anyway? */
2057 shut_down_emacs (0, 0, STRINGP (arg
) ? arg
: Qnil
);
2059 /* If we have an auto-save list file,
2060 kill it because we are exiting Emacs deliberately (not crashing).
2061 Do it after shut_down_emacs, which does an auto-save. */
2062 if (STRINGP (Vauto_save_list_file_name
))
2063 unlink (SDATA (Vauto_save_list_file_name
));
2065 exit (INTEGERP (arg
) ? XINT (arg
) : EXIT_SUCCESS
);
2071 /* Perform an orderly shutdown of Emacs. Autosave any modified
2072 buffers, kill any child processes, clean up the terminal modes (if
2073 we're in the foreground), and other stuff like that. Don't perform
2074 any redisplay; this may be called when Emacs is shutting down in
2075 the background, or after its X connection has died.
2077 If SIG is a signal number, print a message for it.
2079 This is called by fatal signal handlers, X protocol error handlers,
2083 shut_down_emacs (sig
, no_x
, stuff
)
2087 /* Prevent running of hooks from now on. */
2090 /* Don't update display from now on. */
2091 Vinhibit_redisplay
= Qt
;
2093 /* If we are controlling the terminal, reset terminal modes. */
2094 #ifdef EMACS_HAVE_TTY_PGRP
2096 int pgrp
= EMACS_GETPGRP (0);
2099 if (EMACS_GET_TTY_PGRP (0, &tpgrp
) != -1
2104 if (sig
&& sig
!= SIGTERM
)
2105 fprintf (stderr
, "Fatal error (%d)", sig
);
2113 stuff_buffered_input (stuff
);
2115 kill_buffer_processes (Qnil
);
2116 Fdo_auto_save (Qt
, Qnil
);
2118 #ifdef CLASH_DETECTION
2119 unlock_all_files ();
2123 kill_vms_processes ();
2126 #if 0 /* This triggers a bug in XCloseDisplay and is not needed. */
2127 #ifdef HAVE_X_WINDOWS
2128 /* It's not safe to call intern here. Maybe we are crashing. */
2129 if (!noninteractive
&& SYMBOLP (Vwindow_system
)
2130 && SCHARS (SYMBOL_NAME (Vwindow_system
)) == 1
2131 && SREF (SYMBOL_NAME (Vwindow_system
), 0) == 'x'
2133 Fx_close_current_connection ();
2134 #endif /* HAVE_X_WINDOWS */
2138 /* There is a tendency for a SIGIO signal to arrive within exit,
2139 and cause a SIGHUP because the input descriptor is already closed. */
2141 signal (SIGIO
, SIG_IGN
);
2148 /* Do this only if terminating normally, we want glyph matrices
2149 etc. in a core dump. */
2150 if (sig
== 0 || sig
== SIGTERM
)
2152 check_glyph_memory ();
2153 check_message_stack ();
2167 DEFUN ("dump-emacs-data", Fdump_emacs_data
, Sdump_emacs_data
, 1, 1, 0,
2168 doc
: /* Dump current state of Emacs into data file FILENAME.
2169 This function exists on systems that use HAVE_SHM. */)
2171 Lisp_Object filename
;
2173 extern char my_edata
[];
2177 CHECK_STRING (filename
);
2178 filename
= Fexpand_file_name (filename
, Qnil
);
2181 Vpurify_flag
= Qnil
;
2184 /* Tell malloc where start of impure now is. */
2185 /* Also arrange for warnings when nearly out of space. */
2186 #ifndef SYSTEM_MALLOC
2187 memory_warnings (my_edata
, malloc_warning
);
2189 map_out_data (SDATA (filename
));
2196 #else /* not HAVE_SHM */
2198 DEFUN ("dump-emacs", Fdump_emacs
, Sdump_emacs
, 2, 2, 0,
2199 doc
: /* Dump current state of Emacs into executable file FILENAME.
2200 Take symbols from SYMFILE (presumably the file you executed to run Emacs).
2201 This is used in the file `loadup.el' when building Emacs.
2203 You must run Emacs in batch mode in order to dump it. */)
2205 Lisp_Object filename
, symfile
;
2207 extern char my_edata
[];
2210 int count
= SPECPDL_INDEX ();
2214 if (! noninteractive
)
2215 error ("Dumping Emacs works only in batch mode");
2218 if (heap_bss_diff
> MAX_HEAP_BSS_DIFF
)
2220 fprintf (stderr
, "**************************************************\n");
2221 fprintf (stderr
, "Warning: Your system has a gap between BSS and the\n");
2222 fprintf (stderr
, "heap (%lu byte). This usually means that exec-shield\n",
2224 fprintf (stderr
, "or something similar is in effect. The dump may\n");
2225 fprintf (stderr
, "fail because of this. See the section about \n");
2226 fprintf (stderr
, "exec-shield in etc/PROBLEMS for more information.\n");
2227 fprintf (stderr
, "**************************************************\n");
2229 #endif /* __linux__ */
2231 /* Bind `command-line-processed' to nil before dumping,
2232 so that the dumped Emacs will process its command line
2233 and set up to work with X windows if appropriate. */
2234 symbol
= intern ("command-line-processed");
2235 specbind (symbol
, Qnil
);
2237 CHECK_STRING (filename
);
2238 filename
= Fexpand_file_name (filename
, Qnil
);
2239 if (!NILP (symfile
))
2241 CHECK_STRING (symfile
);
2242 if (SCHARS (symfile
))
2243 symfile
= Fexpand_file_name (symfile
, Qnil
);
2247 Vpurify_flag
= Qnil
;
2250 set_time_zone_rule (dump_tz
);
2251 #ifndef LOCALTIME_CACHE
2252 /* Force a tz reload, since set_time_zone_rule doesn't. */
2259 mapout_data (SDATA (filename
));
2261 /* Tell malloc where start of impure now is. */
2262 /* Also arrange for warnings when nearly out of space. */
2263 #ifndef SYSTEM_MALLOC
2265 /* On Windows, this was done before dumping, and that once suffices.
2266 Meanwhile, my_edata is not valid on Windows. */
2267 memory_warnings (my_edata
, malloc_warning
);
2268 #endif /* not WINDOWSNT */
2270 #if !defined (SYSTEM_MALLOC) && defined (HAVE_GTK_AND_PTHREAD) && !defined SYNC_INPUT
2271 /* Pthread may call malloc before main, and then we will get an endless
2272 loop, because pthread_self (see alloc.c) calls malloc the first time
2273 it is called on some systems. */
2274 reset_malloc_hooks ();
2276 #ifdef DOUG_LEA_MALLOC
2277 malloc_state_ptr
= malloc_get_state ();
2280 #ifdef USE_MMAP_FOR_BUFFERS
2283 unexec (SDATA (filename
),
2284 !NILP (symfile
) ? SDATA (symfile
) : 0, my_edata
, 0, 0);
2285 #ifdef USE_MMAP_FOR_BUFFERS
2288 #ifdef DOUG_LEA_MALLOC
2289 free (malloc_state_ptr
);
2291 #endif /* not VMS */
2295 return unbind_to (count
, Qnil
);
2298 #endif /* not HAVE_SHM */
2300 #endif /* not CANNOT_DUMP */
2303 /* Recover from setlocale (LC_ALL, ""). */
2307 /* The Emacs Lisp reader needs LC_NUMERIC to be "C",
2308 so that numbers are read and printed properly for Emacs Lisp. */
2309 setlocale (LC_NUMERIC
, "C");
2312 /* Set system locale CATEGORY, with previous locale *PLOCALE, to
2315 synchronize_locale (category
, plocale
, desired_locale
)
2317 Lisp_Object
*plocale
;
2318 Lisp_Object desired_locale
;
2320 if (! EQ (*plocale
, desired_locale
))
2322 *plocale
= desired_locale
;
2323 setlocale (category
, (STRINGP (desired_locale
)
2324 ? (char *) SDATA (desired_locale
)
2329 /* Set system time locale to match Vsystem_time_locale, if possible. */
2331 synchronize_system_time_locale ()
2333 synchronize_locale (LC_TIME
, &Vprevious_system_time_locale
,
2334 Vsystem_time_locale
);
2337 /* Set system messages locale to match Vsystem_messages_locale, if
2340 synchronize_system_messages_locale ()
2343 synchronize_locale (LC_MESSAGES
, &Vprevious_system_messages_locale
,
2344 Vsystem_messages_locale
);
2347 #endif /* HAVE_SETLOCALE */
2354 decode_env_path (evarname
, defalt
)
2355 char *evarname
, *defalt
;
2357 register char *path
, *p
;
2358 Lisp_Object lpath
, element
, tem
;
2360 /* It's okay to use getenv here, because this function is only used
2361 to initialize variables when Emacs starts up, and isn't called
2364 path
= (char *) getenv (evarname
);
2370 /* Ensure values from the environment use the proper directory separator. */
2373 p
= alloca (strlen (path
) + 1);
2377 if ('/' == DIRECTORY_SEP
)
2378 dostounix_filename (path
);
2380 unixtodos_filename (path
);
2386 p
= index (path
, SEPCHAR
);
2387 if (!p
) p
= path
+ strlen (path
);
2388 element
= (p
- path
? make_string (path
, p
- path
)
2389 : build_string ("."));
2391 /* Add /: to the front of the name
2392 if it would otherwise be treated as magic. */
2393 tem
= Ffind_file_name_handler (element
, Qt
);
2395 /* However, if the handler says "I'm safe",
2396 don't bother adding /:. */
2400 prop
= Fget (tem
, intern ("safe-magic"));
2406 element
= concat2 (build_string ("/:"), element
);
2408 lpath
= Fcons (element
, lpath
);
2414 return Fnreverse (lpath
);
2420 Qfile_name_handler_alist
= intern ("file-name-handler-alist");
2421 staticpro (&Qfile_name_handler_alist
);
2425 defsubr (&Sdump_emacs_data
);
2427 defsubr (&Sdump_emacs
);
2431 defsubr (&Skill_emacs
);
2433 defsubr (&Sinvocation_name
);
2434 defsubr (&Sinvocation_directory
);
2436 DEFVAR_LISP ("command-line-args", &Vcommand_line_args
,
2437 doc
: /* Args passed by shell to Emacs, as a list of strings.
2438 Many arguments are deleted from the list as they are processed. */);
2440 DEFVAR_LISP ("system-type", &Vsystem_type
,
2441 + doc
: /* Value is symbol indicating type of operating system you are using.
2443 + `gnu/linux' compiled for a GNU/Linux system.
2444 + `darwin' compiled for Darwin (GNU-Darwin, Mac OS X, ...).
2445 + `macos' compiled for Mac OS 9.
2446 + `ms-dos' compiled as an MS-DOS application.
2447 + `windows-nt' compiled as a native W32 application.
2448 + `cygwin' compiled using the Cygwin library.
2449 + `vax-vms' or `axp-vms': compiled for a (Open)VMS system.
2450 +Anything else indicates some sort of Unix system. */);
2451 Vsystem_type
= intern (SYSTEM_TYPE
);
2453 DEFVAR_LISP ("system-configuration", &Vsystem_configuration
,
2454 doc
: /* Value is string indicating configuration Emacs was built for.
2455 On MS-Windows, the value reflects the OS flavor and version on which
2456 Emacs is running. */);
2457 Vsystem_configuration
= build_string (EMACS_CONFIGURATION
);
2459 DEFVAR_LISP ("system-configuration-options", &Vsystem_configuration_options
,
2460 doc
: /* String containing the configuration options Emacs was built with. */);
2461 Vsystem_configuration_options
= build_string (EMACS_CONFIG_OPTIONS
);
2463 DEFVAR_BOOL ("noninteractive", &noninteractive1
,
2464 doc
: /* Non-nil means Emacs is running without interactive terminal. */);
2466 DEFVAR_LISP ("kill-emacs-hook", &Vkill_emacs_hook
,
2467 doc
: /* Hook to be run when kill-emacs is called.
2468 Since `kill-emacs' may be invoked when the terminal is disconnected (or
2469 in other similar situations), functions placed on this hook should not
2470 expect to be able to interact with the user. To ask for confirmation,
2471 see `kill-emacs-query-functions' instead.
2473 The hook is not run in batch mode, i.e., if `noninteractive' is non-nil. */);
2474 Vkill_emacs_hook
= Qnil
;
2476 empty_string
= build_string ("");
2477 staticpro (&empty_string
);
2479 DEFVAR_INT ("emacs-priority", &emacs_priority
,
2480 doc
: /* Priority for Emacs to run at.
2481 This value is effective only if set before Emacs is dumped,
2482 and only if the Emacs executable is installed with setuid to permit
2483 it to change priority. (Emacs sets its uid back to the real uid.)
2484 Currently, you need to define SET_EMACS_PRIORITY in `config.h'
2485 before you compile Emacs, to enable the code for this feature. */);
2488 DEFVAR_LISP ("path-separator", &Vpath_separator
,
2489 doc
: /* The directory separator in search paths, as a string. */);
2492 Vpath_separator
= make_string (&c
, 1);
2495 DEFVAR_LISP ("invocation-name", &Vinvocation_name
,
2496 doc
: /* The program name that was used to run Emacs.
2497 Any directory names are omitted. */);
2499 DEFVAR_LISP ("invocation-directory", &Vinvocation_directory
,
2500 doc
: /* The directory in which the Emacs executable was found, to run it.
2501 The value is nil if that directory's name is not known. */);
2503 DEFVAR_LISP ("installation-directory", &Vinstallation_directory
,
2504 doc
: /* A directory within which to look for the `lib-src' and `etc' directories.
2505 This is non-nil when we can't find those directories in their standard
2506 installed locations, but we can find them
2507 near where the Emacs executable was found. */);
2508 Vinstallation_directory
= Qnil
;
2510 DEFVAR_LISP ("system-messages-locale", &Vsystem_messages_locale
,
2511 doc
: /* System locale for messages. */);
2512 Vsystem_messages_locale
= Qnil
;
2514 DEFVAR_LISP ("previous-system-messages-locale",
2515 &Vprevious_system_messages_locale
,
2516 doc
: /* Most recently used system locale for messages. */);
2517 Vprevious_system_messages_locale
= Qnil
;
2519 DEFVAR_LISP ("system-time-locale", &Vsystem_time_locale
,
2520 doc
: /* System locale for time. */);
2521 Vsystem_time_locale
= Qnil
;
2523 DEFVAR_LISP ("previous-system-time-locale", &Vprevious_system_time_locale
,
2524 doc
: /* Most recently used system locale for time. */);
2525 Vprevious_system_time_locale
= Qnil
;
2528 /* arch-tag: 7bfd356a-c720-4612-8ab6-aa4222931c2e
2529 (do not change this comment) */