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 command arguments 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 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 --reverse-video, -r, -rv switch foreground and background\n\
317 --title, -T TITLE title for initial Emacs frame\n\
318 --vertical-scroll-bars, -vb enable vertical scroll bars\n\
319 --xrm XRESOURCES set additional X resources\n\
320 --help display this help and exit\n\
321 --version output version information and exit\n\
323 You can generally also specify long option names with a single -; for\n\
324 example, -batch as well as --batch. You can use any unambiguous\n\
325 abbreviation for a --option.\n\
327 Various environment variables and window system resources also affect\n\
328 Emacs' operation. See the main documentation.\n\
332 Report bugs to %s. First, please see the Bugs\n\
333 section of the Emacs manual or the file BUGS.\n"
336 /* Signal code for the fatal signal that was received. */
337 int fatal_error_code
;
339 /* Nonzero if handling a fatal error already. */
340 int fatal_error_in_progress
;
342 /* If non-null, call this function from fatal_error_signal before
343 committing suicide. */
345 void (*fatal_error_signal_hook
) P_ ((void));
347 #ifdef HAVE_GTK_AND_PTHREAD
348 /* When compiled with GTK and running under Gnome, multiple threads meay be
349 created. Keep track of our main thread to make sure signals are delivered
350 to it (see syssignal.h). */
352 pthread_t main_thread
;
358 handle_USR1_signal (sig
)
361 struct input_event buf
;
363 SIGNAL_THREAD_CHECK (sig
);
364 bzero (&buf
, sizeof buf
);
365 buf
.kind
= USER_SIGNAL_EVENT
;
366 buf
.frame_or_window
= selected_frame
;
368 kbd_buffer_store_event (&buf
);
374 handle_USR2_signal (sig
)
377 struct input_event buf
;
379 SIGNAL_THREAD_CHECK (sig
);
380 bzero (&buf
, sizeof buf
);
381 buf
.kind
= USER_SIGNAL_EVENT
;
383 buf
.frame_or_window
= selected_frame
;
385 kbd_buffer_store_event (&buf
);
389 /* Handle bus errors, invalid instruction, etc. */
391 fatal_error_signal (sig
)
394 SIGNAL_THREAD_CHECK (sig
);
395 fatal_error_code
= sig
;
396 signal (sig
, SIG_DFL
);
398 TOTALLY_UNBLOCK_INPUT
;
400 /* If fatal error occurs in code below, avoid infinite recursion. */
401 if (! fatal_error_in_progress
)
403 fatal_error_in_progress
= 1;
405 shut_down_emacs (sig
, 0, Qnil
);
409 LIB$
STOP (SS$_ABORT
);
411 /* Signal the same code; this time it will really be fatal.
412 Remember that since we're in a signal handler, the signal we're
413 going to send is probably blocked, so we have to unblock it if we
414 want to really receive it. */
416 sigunblock (sigmask (fatal_error_code
));
419 if (fatal_error_signal_hook
)
420 fatal_error_signal_hook ();
422 kill (getpid (), fatal_error_code
);
428 /* Handler for SIGDANGER. */
430 memory_warning_signal (sig
)
433 signal (sig
, memory_warning_signal
);
434 SIGNAL_THREAD_CHECK (sig
);
436 malloc_warning ("Operating system warns that virtual memory is running low.\n");
438 /* It might be unsafe to call do_auto_save now. */
439 force_auto_save_soon ();
443 /* We define abort, rather than using it from the library,
444 so that GDB can return from a breakpoint here.
445 MSDOS has its own definition in msdos.c. */
447 #if ! defined (DOS_NT) && ! defined (NO_ABORT)
449 #ifndef ABORT_RETURN_TYPE
450 #define ABORT_RETURN_TYPE void
456 kill (getpid (), SIGABRT
);
457 /* This shouldn't be executed, but it prevents a warning. */
463 /* Code for dealing with Lisp access to the Unix command line. */
466 init_cmdargs (argc
, argv
, skip_args
)
472 Lisp_Object name
, dir
, tem
;
473 int count
= SPECPDL_INDEX ();
474 Lisp_Object raw_name
;
479 raw_name
= build_string (argv
[0]);
481 /* Add /: to the front of the name
482 if it would otherwise be treated as magic. */
483 tem
= Ffind_file_name_handler (raw_name
, Qt
);
485 raw_name
= concat2 (build_string ("/:"), raw_name
);
487 Vinvocation_name
= Ffile_name_nondirectory (raw_name
);
488 Vinvocation_directory
= Ffile_name_directory (raw_name
);
490 /* If we got no directory in argv[0], search PATH to find where
491 Emacs actually came from. */
492 if (NILP (Vinvocation_directory
))
495 int yes
= openp (Vexec_path
, Vinvocation_name
,
496 Vexec_suffixes
, &found
, make_number (X_OK
));
499 /* Add /: to the front of the name
500 if it would otherwise be treated as magic. */
501 tem
= Ffind_file_name_handler (found
, Qt
);
503 found
= concat2 (build_string ("/:"), found
);
504 Vinvocation_directory
= Ffile_name_directory (found
);
508 if (!NILP (Vinvocation_directory
)
509 && NILP (Ffile_name_absolute_p (Vinvocation_directory
)))
510 /* Emacs was started with relative path, like ./emacs.
512 Vinvocation_directory
= Fexpand_file_name (Vinvocation_directory
, Qnil
);
514 Vinstallation_directory
= Qnil
;
516 if (!NILP (Vinvocation_directory
))
518 dir
= Vinvocation_directory
;
519 name
= Fexpand_file_name (Vinvocation_name
, dir
);
522 Lisp_Object tem
, lib_src_exists
;
523 Lisp_Object etc_exists
, info_exists
;
525 /* See if dir contains subdirs for use by Emacs.
526 Check for the ones that would exist in a build directory,
527 not including lisp and info. */
528 tem
= Fexpand_file_name (build_string ("lib-src"), dir
);
529 lib_src_exists
= Ffile_exists_p (tem
);
532 /* MSDOS installations frequently remove lib-src, but we still
533 must set installation-directory, or else info won't find
534 its files (it uses the value of installation-directory). */
535 tem
= Fexpand_file_name (build_string ("info"), dir
);
536 info_exists
= Ffile_exists_p (tem
);
541 if (!NILP (lib_src_exists
) || !NILP (info_exists
))
543 tem
= Fexpand_file_name (build_string ("etc"), dir
);
544 etc_exists
= Ffile_exists_p (tem
);
545 if (!NILP (etc_exists
))
547 Vinstallation_directory
548 = Ffile_name_as_directory (dir
);
553 /* See if dir's parent contains those subdirs. */
554 tem
= Fexpand_file_name (build_string ("../lib-src"), dir
);
555 lib_src_exists
= Ffile_exists_p (tem
);
559 /* See the MSDOS commentary above. */
560 tem
= Fexpand_file_name (build_string ("../info"), dir
);
561 info_exists
= Ffile_exists_p (tem
);
566 if (!NILP (lib_src_exists
) || !NILP (info_exists
))
568 tem
= Fexpand_file_name (build_string ("../etc"), dir
);
569 etc_exists
= Ffile_exists_p (tem
);
570 if (!NILP (etc_exists
))
572 tem
= Fexpand_file_name (build_string (".."), dir
);
573 Vinstallation_directory
574 = Ffile_name_as_directory (tem
);
579 /* If the Emacs executable is actually a link,
580 next try the dir that the link points into. */
581 tem
= Ffile_symlink_p (name
);
584 name
= Fexpand_file_name (tem
, dir
);
585 dir
= Ffile_name_directory (name
);
592 Vcommand_line_args
= Qnil
;
594 for (i
= argc
- 1; i
>= 0; i
--)
596 if (i
== 0 || i
> skip_args
)
597 /* For the moment, we keep arguments as is in unibyte strings.
598 They are decoded in the function command-line after we know
599 locale-coding-system. */
601 = Fcons (make_unibyte_string (argv
[i
], strlen (argv
[i
])),
605 unbind_to (count
, Qnil
);
608 DEFUN ("invocation-name", Finvocation_name
, Sinvocation_name
, 0, 0, 0,
609 doc
: /* Return the program name that was used to run Emacs.
610 Any directory names are omitted. */)
613 return Fcopy_sequence (Vinvocation_name
);
616 DEFUN ("invocation-directory", Finvocation_directory
, Sinvocation_directory
,
618 doc
: /* Return the directory name in which the Emacs executable was located. */)
621 return Fcopy_sequence (Vinvocation_directory
);
626 #ifdef LINK_CRTL_SHARE
627 #ifdef SHARABLE_LIB_BUG
628 extern noshare
char **environ
;
629 #endif /* SHARABLE_LIB_BUG */
630 #endif /* LINK_CRTL_SHARE */
634 /* A valid but unlikely value for the TZ environment value.
635 It is OK (though a bit slower) if the user actually chooses this value. */
636 static char dump_tz
[] = "UtC0";
639 #ifndef ORDINARY_LINK
640 /* We don't include crtbegin.o and crtend.o in the link,
641 so these functions and variables might be missed.
642 Provide dummy definitions to avoid error.
643 (We don't have any real constructors or destructors.) */
645 #ifndef GCC_CTORS_IN_LIBC
646 void __do_global_ctors ()
648 void __do_global_ctors_aux ()
650 void __do_global_dtors ()
652 /* GNU/Linux has a bug in its library; avoid an error. */
654 char * __CTOR_LIST__
[2] = { (char *) (-1), 0 };
656 char * __DTOR_LIST__
[2] = { (char *) (-1), 0 };
657 #endif /* GCC_CTORS_IN_LIBC */
660 #endif /* __GNUC__ */
661 #endif /* ORDINARY_LINK */
663 /* Test whether the next argument in ARGV matches SSTR or a prefix of
664 LSTR (at least MINLEN characters). If so, then if VALPTR is non-null
665 (the argument is supposed to have a value) store in *VALPTR either
666 the next argument or the portion of this one after the equal sign.
667 ARGV is read starting at position *SKIPPTR; this index is advanced
668 by the number of arguments used.
670 Too bad we can't just use getopt for all of this, but we don't have
671 enough information to do it right. */
674 argmatch (argv
, argc
, sstr
, lstr
, minlen
, valptr
, skipptr
)
687 /* Don't access argv[argc]; give up in advance. */
688 if (argc
<= *skipptr
+ 1)
691 arg
= argv
[*skipptr
+1];
694 if (strcmp (arg
, sstr
) == 0)
698 *valptr
= argv
[*skipptr
+2];
705 arglen
= (valptr
!= NULL
&& (p
= index (arg
, '=')) != NULL
706 ? p
- arg
: strlen (arg
));
707 if (lstr
== 0 || arglen
< minlen
|| strncmp (arg
, lstr
, arglen
) != 0)
709 else if (valptr
== NULL
)
720 else if (argv
[*skipptr
+2] != NULL
)
722 *valptr
= argv
[*skipptr
+2];
732 #ifdef DOUG_LEA_MALLOC
734 /* malloc can be invoked even before main (e.g. by the dynamic
735 linker), so the dumped malloc state must be restored as early as
736 possible using this special hook. */
739 malloc_initialize_hook ()
742 extern char **environ
;
747 if (!malloc_using_checking
)
748 /* Work around a bug in glibc's malloc. MALLOC_CHECK_ must be
749 ignored if the heap to be restored was constructed without
750 malloc checking. Can't use unsetenv, since that calls malloc. */
754 for (p
= environ
; p
&& *p
; p
++)
755 if (strncmp (*p
, "MALLOC_CHECK_=", 14) == 0)
764 malloc_set_state (malloc_state_ptr
);
765 #ifndef XMALLOC_OVERRUN_CHECK
766 free (malloc_state_ptr
);
771 if (my_heap_start
== 0)
772 my_heap_start
= sbrk (0);
773 malloc_using_checking
= getenv ("MALLOC_CHECK_") != NULL
;
777 void (*__malloc_initialize_hook
) () = malloc_initialize_hook
;
779 #endif /* DOUG_LEA_MALLOC */
782 #define REPORT_EMACS_BUG_ADDRESS "bug-gnu-emacs@gnu.org"
783 #define REPORT_EMACS_BUG_PRETEST_ADDRESS "emacs-pretest-bug@gnu.org"
785 /* This function is used to determine an address to which bug report should
789 bug_reporting_address ()
795 temp
= Fsymbol_value (intern ("emacs-version"));
797 /* When `emacs-version' is invalid, use normal address. */
799 return REPORT_EMACS_BUG_ADDRESS
;
801 string
= SDATA (temp
);
803 /* Count dots in `emacs-version'. */
811 /* When `emacs-version' has at least three dots, it is development or
812 pretest version of Emacs. */
813 return count
>= 3 ? REPORT_EMACS_BUG_PRETEST_ADDRESS
: REPORT_EMACS_BUG_ADDRESS
;
833 char stack_bottom_variable
;
834 int do_initial_setlocale
;
839 #ifdef HAVE_SETRLIMIT
846 extern Lisp_Object
*stack_base
;
852 extern char my_endbss
[];
853 extern char *my_endbss_static
;
855 if (my_heap_start
== 0)
856 my_heap_start
= sbrk (0);
858 heap_bss_diff
= (char *)my_heap_start
- max (my_endbss
, my_endbss_static
);
861 #ifdef LINUX_SBRK_BUG
865 #ifdef RUN_TIME_REMAP
867 run_time_remap (argv
[0]);
872 unexec_init_emacs_zone ();
875 sort_args (argc
, argv
);
877 while (argv
[argc
]) argc
++;
879 if (argmatch (argv
, argc
, "-version", "--version", 3, NULL
, &skip_args
)
880 /* We don't know the version number unless this is a dumped Emacs.
881 So ignore --version otherwise. */
885 tem
= Fsymbol_value (intern ("emacs-version"));
888 fprintf (stderr
, "Invalid value of `emacs-version'\n");
893 printf ("GNU Emacs %s\n", SDATA (tem
));
894 printf ("Copyright (C) 2004 Free Software Foundation, Inc.\n");
895 printf ("GNU Emacs comes with ABSOLUTELY NO WARRANTY.\n");
896 printf ("You may redistribute copies of Emacs\n");
897 printf ("under the terms of the GNU General Public License.\n");
898 printf ("For more information about these matters, ");
899 printf ("see the file named COPYING.\n");
904 #ifdef HAVE_PERSONALITY_LINUX32
905 /* See if there is a gap between the end of BSS and the heap.
906 In that case, set personality and exec ourself again. */
908 && (strcmp (argv
[argc
-1], "dump") == 0
909 || strcmp (argv
[argc
-1], "bootstrap") == 0)
910 && heap_bss_diff
> MAX_HEAP_BSS_DIFF
)
912 if (! getenv ("EMACS_HEAP_EXEC"))
914 /* Set this so we only do this once. */
915 putenv("EMACS_HEAP_EXEC=true");
916 personality (PER_LINUX32
);
917 execvp (argv
[0], argv
);
919 /* If the exec fails, try to dump anyway. */
923 #endif /* HAVE_PERSONALITY_LINUX32 */
926 /* Map in shared memory, if we are using that. */
928 if (argmatch (argv
, argc
, "-nl", "--no-shared-memory", 6, NULL
, &skip_args
))
931 /* The shared memory was just restored, which clobbered this. */
937 /* The shared memory was just restored, which clobbered this. */
944 extern int malloc_cookie
;
945 /* This helps out unexnext.c. */
947 if (malloc_jumpstart (malloc_cookie
) != 0)
948 printf ("malloc jumpstart failed!\n");
953 /* Skip process serial number passed in the form -psn_x_y as
954 command-line argument. */
955 if (argc
> skip_args
+ 1 && strncmp (argv
[skip_args
+1], "-psn_", 5) == 0)
960 /* If -map specified, map the data file in. */
963 if (argmatch (argv
, argc
, "-map", "--map-data", 3, &file
, &skip_args
))
967 #ifdef LINK_CRTL_SHARE
968 #ifdef SHARABLE_LIB_BUG
969 /* Bletcherous shared libraries! */
971 stdin
= fdopen (0, "r");
973 stdout
= fdopen (1, "w");
975 stderr
= fdopen (2, "w");
978 #endif /* SHARABLE_LIB_BUG */
979 #endif /* LINK_CRTL_SHARE */
982 #if defined (HAVE_SETRLIMIT) && defined (RLIMIT_STACK)
983 /* Extend the stack space available.
984 Don't do that if dumping, since some systems (e.g. DJGPP)
985 might define a smaller stack limit at that time. */
988 && (!noninteractive
|| initialized
)
990 && !getrlimit (RLIMIT_STACK
, &rlim
))
993 extern int re_max_failures
;
994 /* Approximate the amount regex.c needs per unit of re_max_failures. */
995 int ratio
= 20 * sizeof (char *);
996 /* Then add 33% to cover the size of the smaller stacks that regex.c
997 successively allocates and discards, on its way to the maximum. */
999 /* Add in some extra to cover
1000 what we're likely to use for other reasons. */
1001 newlim
= re_max_failures
* ratio
+ 200000;
1003 /* NetBSD (at least NetBSD 1.2G and former) has a bug in its
1004 stack allocation routine for new process that the allocation
1005 fails if stack limit is not on page boundary. So, round up the
1006 new limit to page boundary. */
1007 newlim
= (newlim
+ getpagesize () - 1) / getpagesize () * getpagesize();
1009 if (newlim
> rlim
.rlim_max
)
1011 newlim
= rlim
.rlim_max
;
1012 /* Don't let regex.c overflow the stack we have. */
1013 re_max_failures
= (newlim
- 200000) / ratio
;
1015 if (rlim
.rlim_cur
< newlim
)
1016 rlim
.rlim_cur
= newlim
;
1018 setrlimit (RLIMIT_STACK
, &rlim
);
1020 #endif /* HAVE_SETRLIMIT and RLIMIT_STACK */
1022 /* Record (approximately) where the stack begins. */
1023 stack_bottom
= &stack_bottom_variable
;
1025 #ifdef USG_SHARED_LIBRARIES
1027 brk ((void *)bss_end
);
1032 #ifndef SYSTEM_MALLOC
1033 /* Arrange to get warning messages as memory fills up. */
1034 memory_warnings (0, malloc_warning
);
1036 /* Call malloc at least once, to run the initial __malloc_hook.
1037 Also call realloc and free for consistency. */
1038 free (realloc (malloc (4), 4));
1041 /* Arrange to disable interrupt input inside malloc etc. */
1042 uninterrupt_malloc ();
1043 # endif /* not SYNC_INPUT */
1044 #endif /* not SYSTEM_MALLOC */
1046 #ifdef HAVE_GTK_AND_PTHREAD
1047 main_thread
= pthread_self ();
1048 #endif /* HAVE_GTK_AND_PTHREAD */
1050 #if defined (MSDOS) || defined (WINDOWSNT)
1051 /* We do all file input/output as binary files. When we need to translate
1052 newlines, we do that manually. */
1054 #endif /* MSDOS || WINDOWSNT */
1058 if (!isatty (fileno (stdin
)))
1059 setmode (fileno (stdin
), O_BINARY
);
1060 if (!isatty (fileno (stdout
)))
1063 setmode (fileno (stdout
), O_BINARY
);
1065 #else /* not __DJGPP__ >= 2 */
1066 (stdin
)->_flag
&= ~_IOTEXT
;
1067 (stdout
)->_flag
&= ~_IOTEXT
;
1068 (stderr
)->_flag
&= ~_IOTEXT
;
1069 #endif /* not __DJGPP__ >= 2 */
1072 #ifdef SET_EMACS_PRIORITY
1074 nice (emacs_priority
);
1076 #endif /* SET_EMACS_PRIORITY */
1078 /* Skip initial setlocale if LC_ALL is "C", as it's not needed in that case.
1079 The build procedure uses this while dumping, to ensure that the
1080 dumped Emacs does not have its system locale tables initialized,
1081 as that might cause screwups when the dumped Emacs starts up. */
1083 char *lc_all
= getenv ("LC_ALL");
1084 do_initial_setlocale
= ! lc_all
|| strcmp (lc_all
, "C");
1087 /* Set locale now, so that initial error messages are localized properly.
1088 fixup_locale must wait until later, since it builds strings. */
1089 if (do_initial_setlocale
)
1090 setlocale (LC_ALL
, "");
1092 #ifdef EXTRA_INITIALIZE
1096 inhibit_window_system
= 0;
1098 /* Handle the -t switch, which specifies filename to use as terminal. */
1102 if (argmatch (argv
, argc
, "-t", "--terminal", 4, &term
, &skip_args
))
1107 result
= emacs_open (term
, O_RDWR
, 0);
1110 char *errstring
= strerror (errno
);
1111 fprintf (stderr
, "%s: %s: %s\n", argv
[0], term
, errstring
);
1117 fprintf (stderr
, "%s: %s: not a tty\n", argv
[0], term
);
1120 fprintf (stderr
, "Using %s\n", term
);
1121 #ifdef HAVE_WINDOW_SYSTEM
1122 inhibit_window_system
= 1; /* -t => -nw */
1129 /* Command line option --no-windows is deprecated and thus not mentioned
1130 in the manual and usage informations. */
1131 if (argmatch (argv
, argc
, "-nw", "--no-window-system", 6, NULL
, &skip_args
)
1132 || argmatch (argv
, argc
, "-nw", "--no-windows", 6, NULL
, &skip_args
))
1133 inhibit_window_system
= 1;
1135 /* Handle the -batch switch, which means don't do interactive display. */
1137 if (argmatch (argv
, argc
, "-batch", "--batch", 5, NULL
, &skip_args
))
1140 Vundo_outer_limit
= Qnil
;
1142 if (argmatch (argv
, argc
, "-script", "--script", 3, &junk
, &skip_args
))
1144 noninteractive
= 1; /* Set batch mode. */
1145 /* Convert --script to -l, un-skip it, and sort again so that -l will be
1146 handled in proper sequence. */
1147 argv
[skip_args
- 1] = "-l";
1149 sort_args (argc
, argv
);
1152 /* Handle the --help option, which gives a usage message. */
1153 if (argmatch (argv
, argc
, "-help", "--help", 3, NULL
, &skip_args
))
1155 printf (USAGE1
, argv
[0], USAGE2
);
1157 printf (USAGE4
, bug_reporting_address ());
1161 if (! noninteractive
)
1166 inherited_pgroup
= EMACS_GETPGRP (0);
1167 setpgrp (0, getpid ());
1170 #if defined (USG5) && defined (INTERRUPT_INPUT)
1178 /* Don't catch SIGHUP if dumping. */
1185 sigblock (sigmask (SIGHUP
));
1186 /* In --batch mode, don't catch SIGHUP if already ignored.
1187 That makes nohup work. */
1188 if (! noninteractive
1189 || signal (SIGHUP
, SIG_IGN
) != SIG_IGN
)
1190 signal (SIGHUP
, fatal_error_signal
);
1191 sigunblock (sigmask (SIGHUP
));
1196 ! noninteractive
|| initialized
1202 /* Don't catch these signals in batch mode if dumping.
1203 On some machines, this sets static data that would make
1204 signal fail to work right when the dumped Emacs is run. */
1205 signal (SIGQUIT
, fatal_error_signal
);
1206 signal (SIGILL
, fatal_error_signal
);
1207 signal (SIGTRAP
, fatal_error_signal
);
1209 signal (SIGUSR1
, handle_USR1_signal
);
1211 signal (SIGUSR2
, handle_USR2_signal
);
1215 signal (SIGABRT
, fatal_error_signal
);
1218 signal (SIGHWE
, fatal_error_signal
);
1221 signal (SIGPRE
, fatal_error_signal
);
1224 signal (SIGORE
, fatal_error_signal
);
1227 signal (SIGUME
, fatal_error_signal
);
1230 signal (SIGDLK
, fatal_error_signal
);
1233 signal (SIGCPULIM
, fatal_error_signal
);
1236 /* This is missing on some systems - OS/2, for example. */
1237 signal (SIGIOT
, fatal_error_signal
);
1240 signal (SIGEMT
, fatal_error_signal
);
1242 signal (SIGFPE
, fatal_error_signal
);
1244 signal (SIGBUS
, fatal_error_signal
);
1246 signal (SIGSEGV
, fatal_error_signal
);
1248 signal (SIGSYS
, fatal_error_signal
);
1250 signal (SIGTERM
, fatal_error_signal
);
1252 signal (SIGXCPU
, fatal_error_signal
);
1255 signal (SIGXFSZ
, fatal_error_signal
);
1256 #endif /* SIGXFSZ */
1259 /* This just means available memory is getting low. */
1260 signal (SIGDANGER
, memory_warning_signal
);
1264 /* 20 is SIGCHLD, 21 is SIGTTIN, 22 is SIGTTOU. */
1265 signal (SIGXCPU
, fatal_error_signal
);
1267 signal (SIGIOINT
, fatal_error_signal
);
1269 signal (SIGGRANT
, fatal_error_signal
);
1270 signal (SIGRETRACT
, fatal_error_signal
);
1271 signal (SIGSOUND
, fatal_error_signal
);
1272 signal (SIGMSG
, fatal_error_signal
);
1276 noninteractive1
= noninteractive
;
1278 /* Perform basic initializations (not merely interning symbols). */
1285 init_charset_once ();
1286 init_coding_once ();
1287 init_syntax_once (); /* Create standard syntax table. */
1288 init_category_once (); /* Create standard category table. */
1289 /* Must be done before init_buffer. */
1290 init_casetab_once ();
1291 init_buffer_once (); /* Create buffer table and some buffers. */
1292 init_minibuf_once (); /* Create list of minibuffers. */
1293 /* Must precede init_window_once. */
1295 /* Call syms_of_xfaces before init_window_once because that
1296 function creates Vterminal_frame. Termcap frames now use
1297 faces, and the face implementation uses some symbols as
1300 /* Call syms_of_keyboard before init_window_once because
1301 keyboard sets up symbols that include some face names that
1302 the X support will want to use. This can happen when
1303 CANNOT_DUMP is defined. */
1304 syms_of_keyboard ();
1307 /* init_window_once calls make_terminal_frame which on Mac OS
1308 creates a full-fledge output_mac type frame. This does not
1309 work correctly before syms_of_textprop, syms_of_macfns,
1310 syms_of_ccl, syms_of_fontset, syms_of_xterm, syms_of_search,
1311 syms_of_frame, mac_term_init, and init_keyboard have already
1313 syms_of_textprop ();
1323 mac_term_init (build_string ("Mac"), NULL
, NULL
);
1327 init_window_once (); /* Init the window system. */
1328 init_fileio_once (); /* Must precede any path manipulation. */
1329 #ifdef HAVE_WINDOW_SYSTEM
1330 init_fringe_once (); /* Swap bitmaps if necessary. */
1331 #endif /* HAVE_WINDOW_SYSTEM */
1336 if (do_initial_setlocale
)
1339 Vsystem_messages_locale
= Vprevious_system_messages_locale
;
1340 Vsystem_time_locale
= Vprevious_system_time_locale
;
1345 #ifdef CLASH_DETECTION
1349 running_asynch_code
= 0;
1351 /* Handle --unibyte and the EMACS_UNIBYTE envvar,
1352 but not while dumping. */
1355 int inhibit_unibyte
= 0;
1357 /* --multibyte overrides EMACS_UNIBYTE. */
1358 if (argmatch (argv
, argc
, "-no-unibyte", "--no-unibyte", 4, NULL
, &skip_args
)
1359 || argmatch (argv
, argc
, "-multibyte", "--multibyte", 4, NULL
, &skip_args
)
1360 /* Ignore EMACS_UNIBYTE before dumping. */
1361 || (!initialized
&& noninteractive
))
1362 inhibit_unibyte
= 1;
1364 /* --unibyte requests that we set up to do everything with single-byte
1365 buffers and strings. We need to handle this before calling
1366 init_lread, init_editfns and other places that generate Lisp strings
1367 from text in the environment. */
1368 /* Actually this shouldn't be needed as of 20.4 in a generally
1369 unibyte environment. As handa says, environment values
1370 aren't now decoded; also existing buffers are now made
1371 unibyte during startup if .emacs sets unibyte. Tested with
1372 8-bit data in environment variables and /etc/passwd, setting
1373 unibyte and Latin-1 in .emacs. -- Dave Love */
1374 if (argmatch (argv
, argc
, "-unibyte", "--unibyte", 4, NULL
, &skip_args
)
1375 || argmatch (argv
, argc
, "-no-multibyte", "--no-multibyte", 4, NULL
, &skip_args
)
1376 || (getenv ("EMACS_UNIBYTE") && !inhibit_unibyte
))
1378 Lisp_Object old_log_max
;
1379 Lisp_Object symbol
, tail
;
1381 symbol
= intern ("default-enable-multibyte-characters");
1382 Fset (symbol
, Qnil
);
1386 /* Erase pre-dump messages in *Messages* now so no abort. */
1387 old_log_max
= Vmessage_log_max
;
1388 XSETFASTINT (Vmessage_log_max
, 0);
1389 message_dolog ("", 0, 1, 0);
1390 Vmessage_log_max
= old_log_max
;
1393 for (tail
= Vbuffer_alist
; CONSP (tail
);
1398 buffer
= Fcdr (XCAR (tail
));
1399 /* Verify that all buffers are empty now, as they
1401 if (BUF_Z (XBUFFER (buffer
)) > BUF_BEG (XBUFFER (buffer
)))
1403 /* It is safe to do this crudely in an empty buffer. */
1404 XBUFFER (buffer
)->enable_multibyte_characters
= Qnil
;
1410 = argmatch (argv
, argc
, "-nl", "--no-loadup", 6, NULL
, &skip_args
);
1413 #ifdef HAVE_X_WINDOWS
1414 /* Stupid kludge to catch command-line display spec. We can't
1415 handle this argument entirely in window system dependent code
1416 because we don't even know which window system dependent code
1417 to run until we've recognized this argument. */
1419 char *displayname
= 0;
1420 int count_before
= skip_args
;
1422 /* Skip any number of -d options, but only use the last one. */
1425 int count_before_this
= skip_args
;
1427 if (argmatch (argv
, argc
, "-d", "--display", 3, &displayname
, &skip_args
))
1429 else if (argmatch (argv
, argc
, "-display", 0, 3, &displayname
, &skip_args
))
1434 count_before
= count_before_this
;
1437 /* If we have the form --display=NAME,
1438 convert it into -d name.
1439 This requires inserting a new element into argv. */
1440 if (displayname
!= 0 && skip_args
- count_before
== 1)
1442 char **new = (char **) xmalloc (sizeof (char *) * (argc
+ 2));
1445 for (j
= 0; j
< count_before
+ 1; j
++)
1447 new[count_before
+ 1] = "-d";
1448 new[count_before
+ 2] = displayname
;
1449 for (j
= count_before
+ 2; j
<argc
; j
++)
1450 new[j
+ 1] = argv
[j
];
1454 /* Change --display to -d, when its arg is separate. */
1455 else if (displayname
!= 0 && skip_args
> count_before
1456 && argv
[count_before
+ 1][1] == '-')
1457 argv
[count_before
+ 1] = "-d";
1459 /* Don't actually discard this arg. */
1460 skip_args
= count_before
;
1464 /* argmatch must not be used after here,
1465 except when bulding temacs
1466 because the -d argument has not been skipped in skip_args. */
1469 /* Call early 'cause init_environment needs it. */
1471 /* Set defaults for several environment variables. */
1473 init_environment (argc
, argv
, skip_args
);
1480 /* Initialize environment from registry settings. */
1481 init_environment (argv
);
1482 init_ntproc (); /* must precede init_editfns. */
1487 init_mac_osx_environment ();
1490 /* egetenv is a pretty low-level facility, which may get called in
1491 many circumstances; it seems flimsy to put off initializing it
1492 until calling init_callproc. */
1493 set_process_environment ();
1494 /* AIX crashes are reported in system versions 3.2.3 and 3.2.4
1495 if this is not done. Do it after set_process_environment so that we
1496 don't pollute Vprocess_environment. */
1497 /* Setting LANG here will defeat the startup locale processing... */
1502 init_buffer (); /* Init default directory of main buffer. */
1504 init_callproc_1 (); /* Must precede init_cmdargs and init_sys_modes. */
1505 init_cmdargs (argc
, argv
, skip_args
); /* Must precede init_lread. */
1509 /* Erase any pre-dump messages in the message log, to avoid confusion. */
1510 Lisp_Object old_log_max
;
1511 old_log_max
= Vmessage_log_max
;
1512 XSETFASTINT (Vmessage_log_max
, 0);
1513 message_dolog ("", 0, 1, 0);
1514 Vmessage_log_max
= old_log_max
;
1517 init_callproc (); /* Must follow init_cmdargs but not init_sys_modes. */
1520 /* Intern the names of all standard functions and variables;
1521 define standard keys. */
1525 /* The basic levels of Lisp must come first. */
1526 /* And data must come first of all
1527 for the sake of symbols like error-message. */
1529 /* Called before init_window_once for Mac OS Classic. */
1537 syms_of_floatfns ();
1541 syms_of_bytecode ();
1543 syms_of_casefiddle ();
1545 syms_of_callproc ();
1546 syms_of_category ();
1548 /* Called before init_window_once for Mac OS Classic. */
1553 #ifndef NO_DIR_LIBRARY
1555 #endif /* not NO_DIR_LIBRARY */
1561 syms_of_coding (); /* This should be after syms_of_fileio. */
1562 #ifdef CLASH_DETECTION
1563 syms_of_filelock ();
1564 #endif /* CLASH_DETECTION */
1573 /* Called before init_window_once for Mac OS Classic. */
1584 /* Called before init_window_once for Mac OS Classic. */
1585 syms_of_textprop ();
1587 syms_of_composite ();
1593 #endif /* WINDOWSNT */
1596 #ifdef HAVE_WINDOW_SYSTEM
1599 #endif /* HAVE_WINDOW_SYSTEM */
1600 #ifdef HAVE_X_WINDOWS
1610 #endif /* HAVE_X_WINDOWS */
1615 /* Called before init_window_once for Mac OS Classic. */
1624 syms_of_w32select ();
1627 #endif /* HAVE_NTGUI */
1634 #endif /* HAVE_CARBON */
1644 keys_of_casefiddle ();
1647 keys_of_keyboard ();
1654 /* Initialization that must be done even if the global variable
1655 initialized is non zero. */
1657 globals_of_w32fns ();
1658 globals_of_w32menu ();
1659 globals_of_w32select ();
1660 #endif /* HAVE_NTGUI */
1663 if (!noninteractive
)
1666 init_vms_input ();/* init_display calls get_frame_size, that needs this. */
1668 init_display (); /* Determine terminal type. init_sys_modes uses results. */
1671 /* Called before init_window_once for Mac OS Classic. */
1672 init_keyboard (); /* This too must precede init_sys_modes. */
1675 init_vmsproc (); /* And this too. */
1677 init_sys_modes (); /* Init system terminal modes (RAW or CBREAK, etc.). */
1680 #ifdef HAVE_WINDOW_SYSTEM
1683 #endif /* HAVE_WINDOW_SYSTEM */
1699 /* Handle -l loadup, args passed by Makefile. */
1700 if (argmatch (argv
, argc
, "-l", "--load", 3, &file
, &skip_args
))
1701 Vtop_level
= Fcons (intern ("load"),
1702 Fcons (build_string (file
), Qnil
));
1703 /* Unless next switch is -nl, load "loadup.el" first thing. */
1705 Vtop_level
= Fcons (intern ("load"),
1706 Fcons (build_string ("loadup.el"), Qnil
));
1713 /* If the execution TZ happens to be the same as the dump TZ,
1714 change it to some other value and then change it back,
1715 to force the underlying implementation to reload the TZ info.
1716 This is needed on implementations that load TZ info from files,
1717 since the TZ file contents may differ between dump and execution. */
1718 char *tz
= getenv ("TZ");
1719 if (tz
&& !strcmp (tz
, dump_tz
))
1729 /* Set up for profiling. This is known to work on FreeBSD and
1730 GNU/Linux. It might work on some other systems too. Give it a
1731 try and tell us if it works on your system. To compile for
1732 profiling use something like `make CFLAGS="-pg -g -O -DPROFILING=1'. */
1733 #if defined (__FreeBSD__) || defined (__linux)
1737 extern void _mcleanup ();
1739 extern void safe_bcopy ();
1740 extern void dump_opcode_frequencies ();
1743 /* This uses safe_bcopy because that function comes first in the
1744 Emacs executable. It might be better to use something that
1745 gives the start of the text segment, but start_of_text is not
1746 defined on all systems now. */
1747 monstartup (safe_bcopy
, &etext
);
1756 #ifdef LOCALTIME_CACHE
1757 /* Some versions of localtime have a bug. They cache the value of the time
1758 zone rather than looking it up every time. Since localtime() is
1759 called to bolt the undumping time into the undumped emacs, this
1760 results in localtime ignoring the TZ environment variable.
1761 This flushes the new TZ value into localtime. */
1763 #endif /* defined (LOCALTIME_CACHE) */
1765 /* Enter editor command loop. This never returns. */
1771 /* Sort the args so we can find the most important ones
1772 at the beginning of argv. */
1774 /* First, here's a table of all the standard options. */
1776 struct standard_args
1784 struct standard_args standard_args
[] =
1786 { "-version", "--version", 150, 0 },
1788 { "-nl", "--no-shared-memory", 140, 0 },
1791 { "-map", "--map-data", 130, 0 },
1793 { "-t", "--terminal", 120, 1 },
1794 { "-nw", "--no-window-system", 110, 0 },
1795 { "-nw", "--no-windows", 110, 0 },
1796 { "-batch", "--batch", 100, 0 },
1797 { "-script", "--script", 100, 1 },
1798 { "-help", "--help", 90, 0 },
1799 { "-no-unibyte", "--no-unibyte", 83, 0 },
1800 { "-multibyte", "--multibyte", 82, 0 },
1801 { "-unibyte", "--unibyte", 81, 0 },
1802 { "-no-multibyte", "--no-multibyte", 80, 0 },
1803 { "-nl", "--no-loadup", 70, 0 },
1804 /* -d must come last before the options handled in startup.el. */
1805 { "-d", "--display", 60, 1 },
1806 { "-display", 0, 60, 1 },
1807 /* Now for the options handled in startup.el. */
1808 { "-q", "--no-init-file", 50, 0 },
1809 { "-no-init-file", 0, 50, 0 },
1810 { "-no-site-file", "--no-site-file", 40, 0 },
1811 { "-no-splash", "--no-splash", 40, 0 },
1812 { "-u", "--user", 30, 1 },
1813 { "-user", 0, 30, 1 },
1814 { "-debug-init", "--debug-init", 20, 0 },
1815 { "-i", "--icon-type", 15, 0 },
1816 { "-itype", 0, 15, 0 },
1817 { "-iconic", "--iconic", 15, 0 },
1818 { "-bg", "--background-color", 10, 1 },
1819 { "-background", 0, 10, 1 },
1820 { "-fg", "--foreground-color", 10, 1 },
1821 { "-foreground", 0, 10, 1 },
1822 { "-bd", "--border-color", 10, 1 },
1823 { "-bw", "--border-width", 10, 1 },
1824 { "-ib", "--internal-border", 10, 1 },
1825 { "-ms", "--mouse-color", 10, 1 },
1826 { "-cr", "--cursor-color", 10, 1 },
1827 { "-fn", "--font", 10, 1 },
1828 { "-font", 0, 10, 1 },
1829 { "-fs", "--fullscreen", 10, 0 },
1830 { "-fw", "--fullwidth", 10, 0 },
1831 { "-fh", "--fullheight", 10, 0 },
1832 { "-g", "--geometry", 10, 1 },
1833 { "-geometry", 0, 10, 1 },
1834 { "-T", "--title", 10, 1 },
1835 { "-title", 0, 10, 1 },
1836 { "-name", "--name", 10, 1 },
1837 { "-xrm", "--xrm", 10, 1 },
1838 { "-r", "--reverse-video", 5, 0 },
1840 { "-reverse", 0, 5, 0 },
1841 { "-hb", "--horizontal-scroll-bars", 5, 0 },
1842 { "-vb", "--vertical-scroll-bars", 5, 0 },
1843 { "-color", "--color", 5, 0},
1844 /* These have the same priority as ordinary file name args,
1845 so they are not reordered with respect to those. */
1846 { "-L", "--directory", 0, 1 },
1847 { "-directory", 0, 0, 1 },
1848 { "-l", "--load", 0, 1 },
1849 { "-load", 0, 0, 1 },
1850 { "-f", "--funcall", 0, 1 },
1851 { "-funcall", 0, 0, 1 },
1852 { "-eval", "--eval", 0, 1 },
1853 { "-execute", "--execute", 0, 1 },
1854 { "-find-file", "--find-file", 0, 1 },
1855 { "-visit", "--visit", 0, 1 },
1856 { "-file", "--file", 0, 1 },
1857 { "-insert", "--insert", 0, 1 },
1858 /* This should be processed after ordinary file name args and the like. */
1859 { "-kill", "--kill", -10, 0 },
1862 /* Reorder the elements of ARGV (assumed to have ARGC elements)
1863 so that the highest priority ones come first.
1864 Do not change the order of elements of equal priority.
1865 If an option takes an argument, keep it and its argument together.
1867 If an option that takes no argument appears more
1868 than once, eliminate all but one copy of it. */
1871 sort_args (argc
, argv
)
1875 char **new = (char **) xmalloc (sizeof (char *) * argc
);
1876 /* For each element of argv,
1877 the corresponding element of options is:
1878 0 for an option that takes no arguments,
1879 1 for an option that takes one argument, etc.
1880 -1 for an ordinary non-option argument. */
1881 int *options
= (int *) xmalloc (sizeof (int) * argc
);
1882 int *priority
= (int *) xmalloc (sizeof (int) * argc
);
1884 int incoming_used
= 1;
1888 /* Categorize all the options,
1889 and figure out which argv elts are option arguments. */
1890 for (from
= 1; from
< argc
; from
++)
1894 if (argv
[from
][0] == '-')
1899 /* If we have found "--", don't consider
1900 any more arguments as options. */
1901 if (argv
[from
][1] == '-' && argv
[from
][2] == 0)
1903 /* Leave the "--", and everything following it, at the end. */
1904 for (; from
< argc
; from
++)
1906 priority
[from
] = -100;
1912 /* Look for a match with a known old-fashioned option. */
1913 for (i
= 0; i
< sizeof (standard_args
) / sizeof (standard_args
[0]); i
++)
1914 if (!strcmp (argv
[from
], standard_args
[i
].name
))
1916 options
[from
] = standard_args
[i
].nargs
;
1917 priority
[from
] = standard_args
[i
].priority
;
1918 if (from
+ standard_args
[i
].nargs
>= argc
)
1919 fatal ("Option `%s' requires an argument\n", argv
[from
]);
1920 from
+= standard_args
[i
].nargs
;
1924 /* Look for a match with a known long option.
1925 MATCH is -1 if no match so far, -2 if two or more matches so far,
1926 >= 0 (the table index of the match) if just one match so far. */
1927 if (argv
[from
][1] == '-')
1930 thislen
= strlen (argv
[from
]);
1931 equals
= index (argv
[from
], '=');
1933 thislen
= equals
- argv
[from
];
1936 i
< sizeof (standard_args
) / sizeof (standard_args
[0]); i
++)
1937 if (standard_args
[i
].longname
1938 && !strncmp (argv
[from
], standard_args
[i
].longname
,
1947 /* If we found exactly one match, use that. */
1950 options
[from
] = standard_args
[match
].nargs
;
1951 priority
[from
] = standard_args
[match
].priority
;
1952 /* If --OPTION=VALUE syntax is used,
1953 this option uses just one argv element. */
1956 if (from
+ options
[from
] >= argc
)
1957 fatal ("Option `%s' requires an argument\n", argv
[from
]);
1958 from
+= options
[from
];
1965 /* Copy the arguments, in order of decreasing priority, to NEW. */
1967 while (incoming_used
< argc
)
1970 int best_priority
= -9999;
1972 /* Find the highest priority remaining option.
1973 If several have equal priority, take the first of them. */
1974 for (from
= 1; from
< argc
; from
++)
1976 if (argv
[from
] != 0 && priority
[from
] > best_priority
)
1978 best_priority
= priority
[from
];
1981 /* Skip option arguments--they are tied to the options. */
1982 if (options
[from
] > 0)
1983 from
+= options
[from
];
1989 /* Copy the highest priority remaining option, with its args, to NEW.
1990 Unless it is a duplicate of the previous one. */
1991 if (! (options
[best
] == 0
1992 && ! strcmp (new[to
- 1], argv
[best
])))
1994 new[to
++] = argv
[best
];
1995 for (i
= 0; i
< options
[best
]; i
++)
1996 new[to
++] = argv
[best
+ i
+ 1];
1999 incoming_used
+= 1 + (options
[best
] > 0 ? options
[best
] : 0);
2001 /* Clear out this option in ARGV. */
2003 for (i
= 0; i
< options
[best
]; i
++)
2004 argv
[best
+ i
+ 1] = 0;
2007 /* If duplicate options were deleted, fill up extra space with null ptrs. */
2011 bcopy (new, argv
, sizeof (char *) * argc
);
2018 DEFUN ("kill-emacs", Fkill_emacs
, Skill_emacs
, 0, 1, "P",
2019 doc
: /* Exit the Emacs job and kill it.
2020 If ARG is an integer, return ARG as the exit program code.
2021 If ARG is a string, stuff it as keyboard input.
2023 The value of `kill-emacs-hook', if not void,
2024 is a list of functions (of no args),
2025 all of which are called before Emacs is actually killed. */)
2029 struct gcpro gcpro1
;
2036 if (!NILP (Vrun_hooks
) && !noninteractive
)
2037 call1 (Vrun_hooks
, intern ("kill-emacs-hook"));
2041 /* Is it really necessary to do this deassign
2042 when we are going to exit anyway? */
2047 shut_down_emacs (0, 0, STRINGP (arg
) ? arg
: Qnil
);
2049 /* If we have an auto-save list file,
2050 kill it because we are exiting Emacs deliberately (not crashing).
2051 Do it after shut_down_emacs, which does an auto-save. */
2052 if (STRINGP (Vauto_save_list_file_name
))
2053 unlink (SDATA (Vauto_save_list_file_name
));
2055 exit (INTEGERP (arg
) ? XINT (arg
)
2066 /* Perform an orderly shutdown of Emacs. Autosave any modified
2067 buffers, kill any child processes, clean up the terminal modes (if
2068 we're in the foreground), and other stuff like that. Don't perform
2069 any redisplay; this may be called when Emacs is shutting down in
2070 the background, or after its X connection has died.
2072 If SIG is a signal number, print a message for it.
2074 This is called by fatal signal handlers, X protocol error handlers,
2078 shut_down_emacs (sig
, no_x
, stuff
)
2082 /* Prevent running of hooks from now on. */
2085 /* Don't update display from now on. */
2086 Vinhibit_redisplay
= Qt
;
2088 /* If we are controlling the terminal, reset terminal modes. */
2089 #ifdef EMACS_HAVE_TTY_PGRP
2091 int pgrp
= EMACS_GETPGRP (0);
2094 if (EMACS_GET_TTY_PGRP (0, &tpgrp
) != -1
2099 if (sig
&& sig
!= SIGTERM
)
2100 fprintf (stderr
, "Fatal error (%d)", sig
);
2108 stuff_buffered_input (stuff
);
2110 kill_buffer_processes (Qnil
);
2111 Fdo_auto_save (Qt
, Qnil
);
2113 #ifdef CLASH_DETECTION
2114 unlock_all_files ();
2118 kill_vms_processes ();
2121 #if 0 /* This triggers a bug in XCloseDisplay and is not needed. */
2122 #ifdef HAVE_X_WINDOWS
2123 /* It's not safe to call intern here. Maybe we are crashing. */
2124 if (!noninteractive
&& SYMBOLP (Vwindow_system
)
2125 && SCHARS (SYMBOL_NAME (Vwindow_system
)) == 1
2126 && SREF (SYMBOL_NAME (Vwindow_system
), 0) == 'x'
2128 Fx_close_current_connection ();
2129 #endif /* HAVE_X_WINDOWS */
2133 /* There is a tendency for a SIGIO signal to arrive within exit,
2134 and cause a SIGHUP because the input descriptor is already closed. */
2136 signal (SIGIO
, SIG_IGN
);
2143 /* Do this only if terminating normally, we want glyph matrices
2144 etc. in a core dump. */
2145 if (sig
== 0 || sig
== SIGTERM
)
2147 check_glyph_memory ();
2148 check_message_stack ();
2162 DEFUN ("dump-emacs-data", Fdump_emacs_data
, Sdump_emacs_data
, 1, 1, 0,
2163 doc
: /* Dump current state of Emacs into data file FILENAME.
2164 This function exists on systems that use HAVE_SHM. */)
2166 Lisp_Object filename
;
2168 extern char my_edata
[];
2172 CHECK_STRING (filename
);
2173 filename
= Fexpand_file_name (filename
, Qnil
);
2176 Vpurify_flag
= Qnil
;
2179 /* Tell malloc where start of impure now is. */
2180 /* Also arrange for warnings when nearly out of space. */
2181 #ifndef SYSTEM_MALLOC
2182 memory_warnings (my_edata
, malloc_warning
);
2184 map_out_data (SDATA (filename
));
2191 #else /* not HAVE_SHM */
2193 DEFUN ("dump-emacs", Fdump_emacs
, Sdump_emacs
, 2, 2, 0,
2194 doc
: /* Dump current state of Emacs into executable file FILENAME.
2195 Take symbols from SYMFILE (presumably the file you executed to run Emacs).
2196 This is used in the file `loadup.el' when building Emacs.
2198 You must run Emacs in batch mode in order to dump it. */)
2200 Lisp_Object filename
, symfile
;
2202 extern char my_edata
[];
2205 int count
= SPECPDL_INDEX ();
2209 if (! noninteractive
)
2210 error ("Dumping Emacs works only in batch mode");
2213 if (heap_bss_diff
> MAX_HEAP_BSS_DIFF
)
2215 fprintf (stderr
, "**************************************************\n");
2216 fprintf (stderr
, "Warning: Your system has a gap between BSS and the\n");
2217 fprintf (stderr
, "heap (%lu byte). This usually means that exec-shield\n",
2219 fprintf (stderr
, "or something similar is in effect. The dump may\n");
2220 fprintf (stderr
, "fail because of this. See the section about \n");
2221 fprintf (stderr
, "exec-shield in etc/PROBLEMS for more information.\n");
2222 fprintf (stderr
, "**************************************************\n");
2224 #endif /* __linux__ */
2226 /* Bind `command-line-processed' to nil before dumping,
2227 so that the dumped Emacs will process its command line
2228 and set up to work with X windows if appropriate. */
2229 symbol
= intern ("command-line-processed");
2230 specbind (symbol
, Qnil
);
2232 CHECK_STRING (filename
);
2233 filename
= Fexpand_file_name (filename
, Qnil
);
2234 if (!NILP (symfile
))
2236 CHECK_STRING (symfile
);
2237 if (SCHARS (symfile
))
2238 symfile
= Fexpand_file_name (symfile
, Qnil
);
2242 Vpurify_flag
= Qnil
;
2245 set_time_zone_rule (dump_tz
);
2246 #ifndef LOCALTIME_CACHE
2247 /* Force a tz reload, since set_time_zone_rule doesn't. */
2254 mapout_data (SDATA (filename
));
2256 /* Tell malloc where start of impure now is. */
2257 /* Also arrange for warnings when nearly out of space. */
2258 #ifndef SYSTEM_MALLOC
2260 /* On Windows, this was done before dumping, and that once suffices.
2261 Meanwhile, my_edata is not valid on Windows. */
2262 memory_warnings (my_edata
, malloc_warning
);
2263 #endif /* not WINDOWSNT */
2265 #if !defined (SYSTEM_MALLOC) && defined (HAVE_GTK_AND_PTHREAD) && !defined SYNC_INPUT
2266 /* Pthread may call malloc before main, and then we will get an endless
2267 loop, because pthread_self (see alloc.c) calls malloc the first time
2268 it is called on some systems. */
2269 reset_malloc_hooks ();
2271 #ifdef DOUG_LEA_MALLOC
2272 malloc_state_ptr
= malloc_get_state ();
2275 #ifdef USE_MMAP_FOR_BUFFERS
2278 unexec (SDATA (filename
),
2279 !NILP (symfile
) ? SDATA (symfile
) : 0, my_edata
, 0, 0);
2280 #ifdef USE_MMAP_FOR_BUFFERS
2283 #ifdef DOUG_LEA_MALLOC
2284 free (malloc_state_ptr
);
2286 #endif /* not VMS */
2290 return unbind_to (count
, Qnil
);
2293 #endif /* not HAVE_SHM */
2295 #endif /* not CANNOT_DUMP */
2298 /* Recover from setlocale (LC_ALL, ""). */
2302 /* The Emacs Lisp reader needs LC_NUMERIC to be "C",
2303 so that numbers are read and printed properly for Emacs Lisp. */
2304 setlocale (LC_NUMERIC
, "C");
2307 /* Set system locale CATEGORY, with previous locale *PLOCALE, to
2310 synchronize_locale (category
, plocale
, desired_locale
)
2312 Lisp_Object
*plocale
;
2313 Lisp_Object desired_locale
;
2315 if (! EQ (*plocale
, desired_locale
))
2317 *plocale
= desired_locale
;
2318 setlocale (category
, (STRINGP (desired_locale
)
2319 ? (char *) SDATA (desired_locale
)
2324 /* Set system time locale to match Vsystem_time_locale, if possible. */
2326 synchronize_system_time_locale ()
2328 synchronize_locale (LC_TIME
, &Vprevious_system_time_locale
,
2329 Vsystem_time_locale
);
2332 /* Set system messages locale to match Vsystem_messages_locale, if
2335 synchronize_system_messages_locale ()
2338 synchronize_locale (LC_MESSAGES
, &Vprevious_system_messages_locale
,
2339 Vsystem_messages_locale
);
2342 #endif /* HAVE_SETLOCALE */
2349 decode_env_path (evarname
, defalt
)
2350 char *evarname
, *defalt
;
2352 register char *path
, *p
;
2353 Lisp_Object lpath
, element
, tem
;
2355 /* It's okay to use getenv here, because this function is only used
2356 to initialize variables when Emacs starts up, and isn't called
2359 path
= (char *) getenv (evarname
);
2365 /* Ensure values from the environment use the proper directory separator. */
2368 p
= alloca (strlen (path
) + 1);
2372 if ('/' == DIRECTORY_SEP
)
2373 dostounix_filename (path
);
2375 unixtodos_filename (path
);
2381 p
= index (path
, SEPCHAR
);
2382 if (!p
) p
= path
+ strlen (path
);
2383 element
= (p
- path
? make_string (path
, p
- path
)
2384 : build_string ("."));
2386 /* Add /: to the front of the name
2387 if it would otherwise be treated as magic. */
2388 tem
= Ffind_file_name_handler (element
, Qt
);
2390 /* However, if the handler says "I'm safe",
2391 don't bother adding /:. */
2395 prop
= Fget (tem
, intern ("safe-magic"));
2401 element
= concat2 (build_string ("/:"), element
);
2403 lpath
= Fcons (element
, lpath
);
2409 return Fnreverse (lpath
);
2415 Qfile_name_handler_alist
= intern ("file-name-handler-alist");
2416 staticpro (&Qfile_name_handler_alist
);
2420 defsubr (&Sdump_emacs_data
);
2422 defsubr (&Sdump_emacs
);
2426 defsubr (&Skill_emacs
);
2428 defsubr (&Sinvocation_name
);
2429 defsubr (&Sinvocation_directory
);
2431 DEFVAR_LISP ("command-line-args", &Vcommand_line_args
,
2432 doc
: /* Args passed by shell to Emacs, as a list of strings.
2433 Many arguments are deleted from the list as they are processed. */);
2435 DEFVAR_LISP ("system-type", &Vsystem_type
,
2436 + doc
: /* Value is symbol indicating type of operating system you are using.
2438 + `gnu/linux' compiled for a GNU/Linux system.
2439 + `darwin' compiled for Darwin (GNU-Darwin, Mac OS X, ...).
2440 + `macos' compiled for Mac OS 9.
2441 + `ms-dos' compiled as an MS-DOS application.
2442 + `windows-nt' compiled as a native W32 application.
2443 + `cygwin' compiled using the Cygwin library.
2444 + `vax-vms' or `axp-vms': compiled for a (Open)VMS system.
2445 +Anything else indicates some sort of Unix system. */);
2446 Vsystem_type
= intern (SYSTEM_TYPE
);
2448 DEFVAR_LISP ("system-configuration", &Vsystem_configuration
,
2449 doc
: /* Value is string indicating configuration Emacs was built for.
2450 On MS-Windows, the value reflects the OS flavor and version on which
2451 Emacs is running. */);
2452 Vsystem_configuration
= build_string (EMACS_CONFIGURATION
);
2454 DEFVAR_LISP ("system-configuration-options", &Vsystem_configuration_options
,
2455 doc
: /* String containing the configuration options Emacs was built with. */);
2456 Vsystem_configuration_options
= build_string (EMACS_CONFIG_OPTIONS
);
2458 DEFVAR_BOOL ("noninteractive", &noninteractive1
,
2459 doc
: /* Non-nil means Emacs is running without interactive terminal. */);
2461 DEFVAR_LISP ("kill-emacs-hook", &Vkill_emacs_hook
,
2462 doc
: /* Hook to be run when kill-emacs is called.
2463 Since `kill-emacs' may be invoked when the terminal is disconnected (or
2464 in other similar situations), functions placed on this hook should not
2465 expect to be able to interact with the user. To ask for confirmation,
2466 see `kill-emacs-query-functions' instead.
2468 The hook is not run in batch mode, i.e., if `noninteractive' is non-nil. */);
2469 Vkill_emacs_hook
= Qnil
;
2471 empty_string
= build_string ("");
2472 staticpro (&empty_string
);
2474 DEFVAR_INT ("emacs-priority", &emacs_priority
,
2475 doc
: /* Priority for Emacs to run at.
2476 This value is effective only if set before Emacs is dumped,
2477 and only if the Emacs executable is installed with setuid to permit
2478 it to change priority. (Emacs sets its uid back to the real uid.)
2479 Currently, you need to define SET_EMACS_PRIORITY in `config.h'
2480 before you compile Emacs, to enable the code for this feature. */);
2483 DEFVAR_LISP ("path-separator", &Vpath_separator
,
2484 doc
: /* The directory separator in search paths, as a string. */);
2487 Vpath_separator
= make_string (&c
, 1);
2490 DEFVAR_LISP ("invocation-name", &Vinvocation_name
,
2491 doc
: /* The program name that was used to run Emacs.
2492 Any directory names are omitted. */);
2494 DEFVAR_LISP ("invocation-directory", &Vinvocation_directory
,
2495 doc
: /* The directory in which the Emacs executable was found, to run it.
2496 The value is nil if that directory's name is not known. */);
2498 DEFVAR_LISP ("installation-directory", &Vinstallation_directory
,
2499 doc
: /* A directory within which to look for the `lib-src' and `etc' directories.
2500 This is non-nil when we can't find those directories in their standard
2501 installed locations, but we can find them
2502 near where the Emacs executable was found. */);
2503 Vinstallation_directory
= Qnil
;
2505 DEFVAR_LISP ("system-messages-locale", &Vsystem_messages_locale
,
2506 doc
: /* System locale for messages. */);
2507 Vsystem_messages_locale
= Qnil
;
2509 DEFVAR_LISP ("previous-system-messages-locale",
2510 &Vprevious_system_messages_locale
,
2511 doc
: /* Most recently used system locale for messages. */);
2512 Vprevious_system_messages_locale
= Qnil
;
2514 DEFVAR_LISP ("system-time-locale", &Vsystem_time_locale
,
2515 doc
: /* System locale for time. */);
2516 Vsystem_time_locale
= Qnil
;
2518 DEFVAR_LISP ("previous-system-time-locale", &Vprevious_system_time_locale
,
2519 doc
: /* Most recently used system locale for time. */);
2520 Vprevious_system_time_locale
= Qnil
;
2523 /* arch-tag: 7bfd356a-c720-4612-8ab6-aa4222931c2e
2524 (do not change this comment) */