1 /* Fully extensible Emacs, running on Unix, intended for GNU.
2 Copyright (C) 1985, 1986, 1987, 1993, 1994, 1995, 1997, 1998, 1999,
3 2001, 2002, 2003, 2004, 2005, 2006, 2007, 2008
4 Free Software Foundation, Inc.
6 This file is part of GNU Emacs.
8 GNU Emacs is free software: you can redistribute it and/or modify
9 it under the terms of the GNU General Public License as published by
10 the Free Software Foundation, either version 3 of the License, or
11 (at your option) any later version.
13 GNU Emacs is distributed in the hope that it will be useful,
14 but WITHOUT ANY WARRANTY; without even the implied warranty of
15 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
16 GNU General Public License for more details.
18 You should have received a copy of the GNU General Public License
19 along with GNU Emacs. If not, see <http://www.gnu.org/licenses/>. */
27 #include <sys/types.h>
39 #include <sys/ioctl.h>
44 #include <windows.h> /* just for w32.h */
46 #include "w32heap.h" /* for prototype of sbrk */
49 #ifdef NS_IMPL_GNUSTEP
50 /* At least under Debian, GSConfig is in a subdirectory. --Stef */
51 #include <GNUstepBase/GSConfig.h>
56 #include "intervals.h"
61 #include "blockinput.h"
62 #include "syssignal.h"
65 #include "termhooks.h"
75 #include <sys/resource.h>
78 #ifdef HAVE_PERSONALITY_LINUX32
79 #include <sys/personality.h>
87 #if !defined (USG) || defined (BSD_PGRPS)
89 #define setpgrp setpgid
93 extern void malloc_warning
P_ ((char *));
94 extern void set_time_zone_rule
P_ ((char *));
96 extern char *index
P_ ((const char *, int));
99 /* Make these values available in GDB, which doesn't see macros. */
106 #ifndef USE_LISP_UNION_TYPE
107 int gdb_use_union
= 0;
109 int gdb_use_union
= 1;
111 EMACS_INT gdb_valbits
= VALBITS
;
112 EMACS_INT gdb_gctypebits
= GCTYPEBITS
;
114 EMACS_INT gdb_data_seg_bits
= DATA_SEG_BITS
;
116 EMACS_INT gdb_data_seg_bits
= 0;
118 EMACS_INT PVEC_FLAG
= PSEUDOVECTOR_FLAG
;
119 EMACS_INT gdb_array_mark_flag
= ARRAY_MARK_FLAG
;
120 /* GDB might say "No enum type named pvec_type" if we don't have at
121 least one symbol with that type, and then xbacktrace could fail. */
122 enum pvec_type gdb_pvec_type
= PVEC_TYPE_MASK
;
124 /* Command line args from shell, as list of strings. */
125 Lisp_Object Vcommand_line_args
;
127 /* The name under which Emacs was invoked, with any leading directory
129 Lisp_Object Vinvocation_name
;
131 /* The directory name from which Emacs was invoked. */
132 Lisp_Object Vinvocation_directory
;
134 /* The directory name in which to find subdirs such as lisp and etc.
135 nil means get them only from PATH_LOADSEARCH. */
136 Lisp_Object Vinstallation_directory
;
138 /* Hook run by `kill-emacs' before it does really anything. */
139 Lisp_Object Vkill_emacs_hook
;
141 /* Empty lisp strings. To avoid having to build any others. */
142 Lisp_Object empty_unibyte_string
, empty_multibyte_string
;
144 /* Search path separator. */
145 Lisp_Object Vpath_separator
;
147 /* Set nonzero after Emacs has started up the first time.
148 Prevents reinitialization of the Lisp world and keymaps
149 on subsequent starts. */
152 #ifdef DOUG_LEA_MALLOC
153 /* Preserves a pointer to the memory allocated that copies that
154 static data inside glibc's malloc. */
155 void *malloc_state_ptr
;
156 /* From glibc, a routine that returns a copy of the malloc internal state. */
157 extern void *malloc_get_state ();
158 /* From glibc, a routine that overwrites the malloc internal state. */
159 extern int malloc_set_state ();
160 /* Non-zero if the MALLOC_CHECK_ enviroment variable was set while
161 dumping. Used to work around a bug in glibc's malloc. */
162 int malloc_using_checking
;
165 /* Variable whose value is symbol giving operating system type. */
166 Lisp_Object Vsystem_type
;
168 /* Variable whose value is string giving configuration built for. */
169 Lisp_Object Vsystem_configuration
;
171 /* Variable whose value is string giving configuration options,
172 for use when reporting bugs. */
173 Lisp_Object Vsystem_configuration_options
;
175 Lisp_Object Qfile_name_handler_alist
;
177 /* Current and previous system locales for messages and time. */
178 Lisp_Object Vsystem_messages_locale
;
179 Lisp_Object Vprevious_system_messages_locale
;
180 Lisp_Object Vsystem_time_locale
;
181 Lisp_Object Vprevious_system_time_locale
;
183 /* If non-zero, emacs should not attempt to use a window-specific code,
184 but instead should use the virtual terminal under which it was started. */
185 int inhibit_window_system
;
187 /* If nonzero, set Emacs to run at this priority. This is also used
188 in child_setup and sys_suspend to make sure subshells run at normal
189 priority; those functions have their own extern declaration. */
190 EMACS_INT emacs_priority
;
192 /* If non-zero, a filter or a sentinel is running. Tested to save the match
193 data on the first attempt to change it inside asynchronous code. */
194 int running_asynch_code
;
198 extern int inherited_pgroup
;
201 #if defined(HAVE_X_WINDOWS) || defined(HAVE_NS)
202 /* If non-zero, -d was specified, meaning we're using some window system. */
206 /* An address near the bottom of the stack.
207 Tells GC how to save a copy of the stack. */
210 /* The address where the heap starts (from the first sbrk (0) call). */
211 static void *my_heap_start
;
213 /* The gap between BSS end and heap start as far as we can tell. */
214 static unsigned long heap_bss_diff
;
216 /* If the gap between BSS end and heap start is larger than this we try to
217 work around it, and if that fails, output a warning in dump-emacs. */
218 #define MAX_HEAP_BSS_DIFF (1024*1024)
221 #ifdef HAVE_WINDOW_SYSTEM
222 extern Lisp_Object Vinitial_window_system
;
223 #endif /* HAVE_WINDOW_SYSTEM */
225 extern Lisp_Object Vauto_save_list_file_name
;
227 extern Lisp_Object Vinhibit_redisplay
;
229 /* Nonzero means running Emacs without interactive terminal. */
233 /* Value of Lisp variable `noninteractive'.
234 Normally same as C variable `noninteractive'
235 but nothing terrible happens if user sets this one. */
239 /* Save argv and argc. */
243 static void sort_args ();
244 void syms_of_emacs ();
246 /* MSVC needs each string be shorter than 2048 bytes, so the usage
247 strings below are split to not overflow this limit. */
249 Usage: %s [OPTION-OR-FILENAME]...\n\
251 Run Emacs, the extensible, customizable, self-documenting real-time\n\
252 display editor. The recommended way to start Emacs for normal editing\n\
253 is with no options at all.\n\
255 Run M-x info RET m emacs RET m emacs invocation RET inside Emacs to\n\
256 read the main documentation for these command-line arguments.\n\
258 Initialization options:\n\
260 --batch do not do interactive display; implies -q\n\
261 --debug-init enable Emacs Lisp debugger for init file\n\
262 --display, -d DISPLAY use X server DISPLAY\n\
263 --multibyte, --no-unibyte inhibit the effect of EMACS_UNIBYTE\n\
264 --no-desktop do not load a saved desktop\n\
265 --no-init-file, -q load neither ~/.emacs nor default.el\n\
266 --no-shared-memory, -nl do not use shared memory\n\
267 --no-site-file do not load site-start.el\n\
268 --no-splash do not display a splash screen on startup\n\
269 --no-window-system, -nw do not communicate with X, ignoring $DISPLAY\n\
270 --quick, -Q equivalent to -q --no-site-file --no-splash\n\
271 --script FILE run FILE as an Emacs Lisp script\n\
272 --terminal, -t DEVICE use DEVICE for terminal I/O\n\
273 --unibyte, --no-multibyte run Emacs in unibyte mode\n\
274 --user, -u USER load ~USER/.emacs instead of your own\n\
280 FILE visit FILE using find-file\n\
281 +LINE go to line LINE in next FILE\n\
282 +LINE:COLUMN go to line LINE, column COLUMN, in next FILE\n\
283 --directory, -L DIR add DIR to variable load-path\n\
284 --eval EXPR evaluate Emacs Lisp expression EXPR\n\
285 --execute EXPR evaluate Emacs Lisp expression EXPR\n\
286 --file FILE visit FILE using find-file\n\
287 --find-file FILE visit FILE using find-file\n\
288 --funcall, -f FUNC call Emacs Lisp function FUNC with no arguments\n\
289 --insert FILE insert contents of FILE into current buffer\n\
290 --kill exit without asking for confirmation\n\
291 --load, -l FILE load Emacs Lisp FILE using the load function\n\
292 --visit FILE visit FILE using find-file\n\
298 --background-color, -bg COLOR window background color\n\
299 --basic-display, -D disable many display features;\n\
300 used for debugging Emacs\n\
301 --border-color, -bd COLOR main border color\n\
302 --border-width, -bw WIDTH width of main border\n\
303 --color, --color=MODE override color mode for character terminals;\n\
304 MODE defaults to `auto', and can also\n\
305 be `never', `auto', `always',\n\
306 or a mode name like `ansi8'\n\
307 --cursor-color, -cr COLOR color of the Emacs cursor indicating point\n\
308 --font, -fn FONT default font; must be fixed-width\n\
309 --foreground-color, -fg COLOR window foreground color\n\
310 --fullheight, -fh make the first frame high as the screen\n\
311 --fullscreen, -fs make first frame fullscreen\n\
312 --fullwidth, -fw make the first frame wide as the screen\n\
313 --geometry, -g GEOMETRY window geometry\n\
314 --no-bitmap-icon, -nbi do not use picture of gnu for Emacs icon\n\
315 --iconic start Emacs in iconified state\n\
316 --internal-border, -ib WIDTH width between text and main border\n\
317 --line-spacing, -lsp PIXELS additional space to put between lines\n\
318 --mouse-color, -ms COLOR mouse cursor color in Emacs window\n\
319 --name NAME title for initial Emacs frame\n\
320 --no-blinking-cursor, -nbc disable blinking cursor\n\
321 --reverse-video, -r, -rv switch foreground and background\n\
322 --title, -T TITLE title for initial Emacs frame\n\
323 --vertical-scroll-bars, -vb enable vertical scroll bars\n\
324 --xrm XRESOURCES set additional X resources\n\
325 --parent-id XID set parent window\n\
326 --help display this help and exit\n\
327 --version output version information and exit\n\
331 You can generally also specify long option names with a single -; for\n\
332 example, -batch as well as --batch. You can use any unambiguous\n\
333 abbreviation for a --option.\n\
335 Various environment variables and window system resources also affect\n\
336 Emacs' operation. See the main documentation.\n\
338 Report bugs to %s. First, please see the Bugs\n\
339 section of the Emacs manual or the file BUGS.\n"
342 /* Signal code for the fatal signal that was received. */
343 int fatal_error_code
;
345 /* Nonzero if handling a fatal error already. */
346 int fatal_error_in_progress
;
348 /* If non-null, call this function from fatal_error_signal before
349 committing suicide. */
351 void (*fatal_error_signal_hook
) P_ ((void));
353 #ifdef FORWARD_SIGNAL_TO_MAIN_THREAD
354 /* When compiled with GTK and running under Gnome,
355 multiple threads may be created. Keep track of our main
356 thread to make sure signals are delivered to it (see syssignal.h). */
358 pthread_t main_thread
;
362 /* Handle bus errors, invalid instruction, etc. */
364 fatal_error_signal (sig
)
367 SIGNAL_THREAD_CHECK (sig
);
368 fatal_error_code
= sig
;
369 signal (sig
, SIG_DFL
);
371 TOTALLY_UNBLOCK_INPUT
;
373 /* If fatal error occurs in code below, avoid infinite recursion. */
374 if (! fatal_error_in_progress
)
376 fatal_error_in_progress
= 1;
378 shut_down_emacs (sig
, 0, Qnil
);
382 LIB$
STOP (SS$_ABORT
);
384 /* Signal the same code; this time it will really be fatal.
385 Remember that since we're in a signal handler, the signal we're
386 going to send is probably blocked, so we have to unblock it if we
387 want to really receive it. */
389 sigunblock (sigmask (fatal_error_code
));
392 if (fatal_error_signal_hook
)
393 fatal_error_signal_hook ();
395 kill (getpid (), fatal_error_code
);
401 /* Handler for SIGDANGER. */
403 memory_warning_signal (sig
)
406 signal (sig
, memory_warning_signal
);
407 SIGNAL_THREAD_CHECK (sig
);
409 malloc_warning ("Operating system warns that virtual memory is running low.\n");
411 /* It might be unsafe to call do_auto_save now. */
412 force_auto_save_soon ();
416 /* We define abort, rather than using it from the library,
417 so that GDB can return from a breakpoint here.
418 MSDOS has its own definition in msdos.c. */
420 #if ! defined (DOS_NT) && ! defined (NO_ABORT)
425 kill (getpid (), SIGABRT
);
426 /* This shouldn't be executed, but it prevents a warning. */
432 /* Code for dealing with Lisp access to the Unix command line. */
435 init_cmdargs (argc
, argv
, skip_args
)
441 Lisp_Object name
, dir
, tem
;
442 int count
= SPECPDL_INDEX ();
443 Lisp_Object raw_name
;
448 raw_name
= build_string (argv
[0]);
450 /* Add /: to the front of the name
451 if it would otherwise be treated as magic. */
452 tem
= Ffind_file_name_handler (raw_name
, Qt
);
454 raw_name
= concat2 (build_string ("/:"), raw_name
);
456 Vinvocation_name
= Ffile_name_nondirectory (raw_name
);
457 Vinvocation_directory
= Ffile_name_directory (raw_name
);
459 /* If we got no directory in argv[0], search PATH to find where
460 Emacs actually came from. */
461 if (NILP (Vinvocation_directory
))
464 int yes
= openp (Vexec_path
, Vinvocation_name
,
465 Vexec_suffixes
, &found
, make_number (X_OK
));
468 /* Add /: to the front of the name
469 if it would otherwise be treated as magic. */
470 tem
= Ffind_file_name_handler (found
, Qt
);
472 found
= concat2 (build_string ("/:"), found
);
473 Vinvocation_directory
= Ffile_name_directory (found
);
477 if (!NILP (Vinvocation_directory
)
478 && NILP (Ffile_name_absolute_p (Vinvocation_directory
)))
479 /* Emacs was started with relative path, like ./emacs.
481 Vinvocation_directory
= Fexpand_file_name (Vinvocation_directory
, Qnil
);
483 Vinstallation_directory
= Qnil
;
485 if (!NILP (Vinvocation_directory
))
487 dir
= Vinvocation_directory
;
488 name
= Fexpand_file_name (Vinvocation_name
, dir
);
491 Lisp_Object tem
, lib_src_exists
;
492 Lisp_Object etc_exists
, info_exists
;
494 /* See if dir contains subdirs for use by Emacs.
495 Check for the ones that would exist in a build directory,
496 not including lisp and info. */
497 tem
= Fexpand_file_name (build_string ("lib-src"), dir
);
498 lib_src_exists
= Ffile_exists_p (tem
);
501 /* MSDOS installations frequently remove lib-src, but we still
502 must set installation-directory, or else info won't find
503 its files (it uses the value of installation-directory). */
504 tem
= Fexpand_file_name (build_string ("info"), dir
);
505 info_exists
= Ffile_exists_p (tem
);
510 if (!NILP (lib_src_exists
) || !NILP (info_exists
))
512 tem
= Fexpand_file_name (build_string ("etc"), dir
);
513 etc_exists
= Ffile_exists_p (tem
);
514 if (!NILP (etc_exists
))
516 Vinstallation_directory
517 = Ffile_name_as_directory (dir
);
522 /* See if dir's parent contains those subdirs. */
523 tem
= Fexpand_file_name (build_string ("../lib-src"), dir
);
524 lib_src_exists
= Ffile_exists_p (tem
);
528 /* See the MSDOS commentary above. */
529 tem
= Fexpand_file_name (build_string ("../info"), dir
);
530 info_exists
= Ffile_exists_p (tem
);
535 if (!NILP (lib_src_exists
) || !NILP (info_exists
))
537 tem
= Fexpand_file_name (build_string ("../etc"), dir
);
538 etc_exists
= Ffile_exists_p (tem
);
539 if (!NILP (etc_exists
))
541 tem
= Fexpand_file_name (build_string (".."), dir
);
542 Vinstallation_directory
543 = Ffile_name_as_directory (tem
);
548 /* If the Emacs executable is actually a link,
549 next try the dir that the link points into. */
550 tem
= Ffile_symlink_p (name
);
553 name
= Fexpand_file_name (tem
, dir
);
554 dir
= Ffile_name_directory (name
);
561 Vcommand_line_args
= Qnil
;
563 for (i
= argc
- 1; i
>= 0; i
--)
565 if (i
== 0 || i
> skip_args
)
566 /* For the moment, we keep arguments as is in unibyte strings.
567 They are decoded in the function command-line after we know
568 locale-coding-system. */
570 = Fcons (make_unibyte_string (argv
[i
], strlen (argv
[i
])),
574 unbind_to (count
, Qnil
);
577 DEFUN ("invocation-name", Finvocation_name
, Sinvocation_name
, 0, 0, 0,
578 doc
: /* Return the program name that was used to run Emacs.
579 Any directory names are omitted. */)
582 return Fcopy_sequence (Vinvocation_name
);
585 DEFUN ("invocation-directory", Finvocation_directory
, Sinvocation_directory
,
587 doc
: /* Return the directory name in which the Emacs executable was located. */)
590 return Fcopy_sequence (Vinvocation_directory
);
595 #ifdef LINK_CRTL_SHARE
596 #ifdef SHARABLE_LIB_BUG
597 extern noshare
char **environ
;
598 #endif /* SHARABLE_LIB_BUG */
599 #endif /* LINK_CRTL_SHARE */
603 /* A valid but unlikely value for the TZ environment value.
604 It is OK (though a bit slower) if the user actually chooses this value. */
605 static char dump_tz
[] = "UtC0";
608 #ifndef ORDINARY_LINK
609 /* We don't include crtbegin.o and crtend.o in the link,
610 so these functions and variables might be missed.
611 Provide dummy definitions to avoid error.
612 (We don't have any real constructors or destructors.) */
614 #ifndef GCC_CTORS_IN_LIBC
615 void __do_global_ctors ()
617 void __do_global_ctors_aux ()
619 void __do_global_dtors ()
621 /* GNU/Linux has a bug in its library; avoid an error. */
623 char * __CTOR_LIST__
[2] = { (char *) (-1), 0 };
625 char * __DTOR_LIST__
[2] = { (char *) (-1), 0 };
626 #endif /* GCC_CTORS_IN_LIBC */
629 #endif /* __GNUC__ */
630 #endif /* ORDINARY_LINK */
632 /* Test whether the next argument in ARGV matches SSTR or a prefix of
633 LSTR (at least MINLEN characters). If so, then if VALPTR is non-null
634 (the argument is supposed to have a value) store in *VALPTR either
635 the next argument or the portion of this one after the equal sign.
636 ARGV is read starting at position *SKIPPTR; this index is advanced
637 by the number of arguments used.
639 Too bad we can't just use getopt for all of this, but we don't have
640 enough information to do it right. */
643 argmatch (argv
, argc
, sstr
, lstr
, minlen
, valptr
, skipptr
)
656 /* Don't access argv[argc]; give up in advance. */
657 if (argc
<= *skipptr
+ 1)
660 arg
= argv
[*skipptr
+1];
663 if (strcmp (arg
, sstr
) == 0)
667 *valptr
= argv
[*skipptr
+2];
674 arglen
= (valptr
!= NULL
&& (p
= index (arg
, '=')) != NULL
675 ? p
- arg
: strlen (arg
));
676 if (lstr
== 0 || arglen
< minlen
|| strncmp (arg
, lstr
, arglen
) != 0)
678 else if (valptr
== NULL
)
689 else if (argv
[*skipptr
+2] != NULL
)
691 *valptr
= argv
[*skipptr
+2];
701 #ifdef DOUG_LEA_MALLOC
703 /* malloc can be invoked even before main (e.g. by the dynamic
704 linker), so the dumped malloc state must be restored as early as
705 possible using this special hook. */
708 malloc_initialize_hook ()
711 extern char **environ
;
716 if (!malloc_using_checking
)
717 /* Work around a bug in glibc's malloc. MALLOC_CHECK_ must be
718 ignored if the heap to be restored was constructed without
719 malloc checking. Can't use unsetenv, since that calls malloc. */
723 for (p
= environ
; p
&& *p
; p
++)
724 if (strncmp (*p
, "MALLOC_CHECK_=", 14) == 0)
733 malloc_set_state (malloc_state_ptr
);
734 #ifndef XMALLOC_OVERRUN_CHECK
735 free (malloc_state_ptr
);
740 if (my_heap_start
== 0)
741 my_heap_start
= sbrk (0);
742 malloc_using_checking
= getenv ("MALLOC_CHECK_") != NULL
;
746 void (*__malloc_initialize_hook
) () = malloc_initialize_hook
;
748 #endif /* DOUG_LEA_MALLOC */
751 #define REPORT_EMACS_BUG_ADDRESS "bug-gnu-emacs@gnu.org"
752 #define REPORT_EMACS_BUG_PRETEST_ADDRESS "emacs-pretest-bug@gnu.org"
754 /* This function is used to determine an address to which bug report should
758 bug_reporting_address ()
764 temp
= Fsymbol_value (intern ("emacs-version"));
766 /* When `emacs-version' is invalid, use normal address. */
768 return REPORT_EMACS_BUG_ADDRESS
;
770 string
= SDATA (temp
);
772 /* Count dots in `emacs-version'. */
780 /* When `emacs-version' has at least three dots, it is development or
781 pretest version of Emacs. */
782 return count
>= 3 ? REPORT_EMACS_BUG_PRETEST_ADDRESS
: REPORT_EMACS_BUG_ADDRESS
;
802 char stack_bottom_variable
;
803 int do_initial_setlocale
;
808 #ifdef HAVE_SETRLIMIT
815 extern Lisp_Object
*stack_base
;
821 extern char my_endbss
[];
822 extern char *my_endbss_static
;
824 if (my_heap_start
== 0)
825 my_heap_start
= sbrk (0);
827 heap_bss_diff
= (char *)my_heap_start
- max (my_endbss
, my_endbss_static
);
830 #ifdef LINUX_SBRK_BUG
831 /* This is only used GNU/LINUX running on alpha when using libc5 */
835 #ifdef RUN_TIME_REMAP
837 run_time_remap (argv
[0]);
840 #if defined (NS_IMPL_COCOA)
842 unexec_init_emacs_zone ();
845 sort_args (argc
, argv
);
847 while (argv
[argc
]) argc
++;
849 if (argmatch (argv
, argc
, "-version", "--version", 3, NULL
, &skip_args
)
850 /* We don't know the version number unless this is a dumped Emacs.
851 So ignore --version otherwise. */
854 Lisp_Object tem
, tem2
;
855 tem
= Fsymbol_value (intern ("emacs-version"));
856 tem2
= Fsymbol_value (intern ("emacs-copyright"));
859 fprintf (stderr
, "Invalid value of `emacs-version'\n");
864 fprintf (stderr
, "Invalid value of `emacs-copyright'\n");
869 printf ("GNU Emacs %s\n", SDATA (tem
));
870 printf ("%s\n", SDATA(tem2
));
871 printf ("GNU Emacs comes with ABSOLUTELY NO WARRANTY.\n");
872 printf ("You may redistribute copies of Emacs\n");
873 printf ("under the terms of the GNU General Public License.\n");
874 printf ("For more information about these matters, ");
875 printf ("see the file named COPYING.\n");
880 #ifdef HAVE_PERSONALITY_LINUX32
881 /* See if there is a gap between the end of BSS and the heap.
882 In that case, set personality and exec ourself again. */
884 && (strcmp (argv
[argc
-1], "dump") == 0
885 || strcmp (argv
[argc
-1], "bootstrap") == 0)
886 && heap_bss_diff
> MAX_HEAP_BSS_DIFF
)
888 if (! getenv ("EMACS_HEAP_EXEC"))
890 /* Set this so we only do this once. */
891 putenv("EMACS_HEAP_EXEC=true");
893 /* A flag to turn off address randomization which is introduced
894 in linux kernel shipped with fedora core 4 */
895 #define ADD_NO_RANDOMIZE 0x0040000
896 personality (PER_LINUX32
| ADD_NO_RANDOMIZE
);
897 #undef ADD_NO_RANDOMIZE
899 execvp (argv
[0], argv
);
901 /* If the exec fails, try to dump anyway. */
905 #endif /* HAVE_PERSONALITY_LINUX32 */
908 /* Map in shared memory, if we are using that. */
910 if (argmatch (argv
, argc
, "-nl", "--no-shared-memory", 6, NULL
, &skip_args
))
913 /* The shared memory was just restored, which clobbered this. */
919 /* The shared memory was just restored, which clobbered this. */
925 /* If -map specified, map the data file in. */
928 if (argmatch (argv
, argc
, "-map", "--map-data", 3, &file
, &skip_args
))
932 #ifdef LINK_CRTL_SHARE
933 #ifdef SHARABLE_LIB_BUG
934 /* Bletcherous shared libraries! */
936 stdin
= fdopen (0, "r");
938 stdout
= fdopen (1, "w");
940 stderr
= fdopen (2, "w");
943 #endif /* SHARABLE_LIB_BUG */
944 #endif /* LINK_CRTL_SHARE */
947 #if defined (HAVE_SETRLIMIT) && defined (RLIMIT_STACK)
948 /* Extend the stack space available.
949 Don't do that if dumping, since some systems (e.g. DJGPP)
950 might define a smaller stack limit at that time. */
953 && (!noninteractive
|| initialized
)
955 && !getrlimit (RLIMIT_STACK
, &rlim
))
958 extern size_t re_max_failures
;
959 /* Approximate the amount regex.c needs per unit of re_max_failures. */
960 int ratio
= 20 * sizeof (char *);
961 /* Then add 33% to cover the size of the smaller stacks that regex.c
962 successively allocates and discards, on its way to the maximum. */
964 /* Add in some extra to cover
965 what we're likely to use for other reasons. */
966 newlim
= re_max_failures
* ratio
+ 200000;
968 /* NetBSD (at least NetBSD 1.2G and former) has a bug in its
969 stack allocation routine for new process that the allocation
970 fails if stack limit is not on page boundary. So, round up the
971 new limit to page boundary. */
972 newlim
= (newlim
+ getpagesize () - 1) / getpagesize () * getpagesize();
974 if (newlim
> rlim
.rlim_max
)
976 newlim
= rlim
.rlim_max
;
977 /* Don't let regex.c overflow the stack we have. */
978 re_max_failures
= (newlim
- 200000) / ratio
;
980 if (rlim
.rlim_cur
< newlim
)
981 rlim
.rlim_cur
= newlim
;
983 setrlimit (RLIMIT_STACK
, &rlim
);
985 #endif /* HAVE_SETRLIMIT and RLIMIT_STACK */
987 /* Record (approximately) where the stack begins. */
988 stack_bottom
= &stack_bottom_variable
;
992 #ifndef SYSTEM_MALLOC
993 /* Arrange to get warning messages as memory fills up. */
994 memory_warnings (0, malloc_warning
);
996 /* Call malloc at least once, to run the initial __malloc_hook.
997 Also call realloc and free for consistency. */
998 free (realloc (malloc (4), 4));
1001 /* Arrange to disable interrupt input inside malloc etc. */
1002 uninterrupt_malloc ();
1003 # endif /* not SYNC_INPUT */
1004 #endif /* not SYSTEM_MALLOC */
1006 #ifdef FORWARD_SIGNAL_TO_MAIN_THREAD
1007 main_thread
= pthread_self ();
1008 #endif /* FORWARD_SIGNAL_TO_MAIN_THREAD */
1010 #if defined (MSDOS) || defined (WINDOWSNT)
1011 /* We do all file input/output as binary files. When we need to translate
1012 newlines, we do that manually. */
1014 #endif /* MSDOS || WINDOWSNT */
1018 if (!isatty (fileno (stdin
)))
1019 setmode (fileno (stdin
), O_BINARY
);
1020 if (!isatty (fileno (stdout
)))
1023 setmode (fileno (stdout
), O_BINARY
);
1025 #else /* not __DJGPP__ >= 2 */
1026 (stdin
)->_flag
&= ~_IOTEXT
;
1027 (stdout
)->_flag
&= ~_IOTEXT
;
1028 (stderr
)->_flag
&= ~_IOTEXT
;
1029 #endif /* not __DJGPP__ >= 2 */
1032 #ifdef SET_EMACS_PRIORITY
1034 nice (emacs_priority
);
1036 #endif /* SET_EMACS_PRIORITY */
1038 /* Skip initial setlocale if LC_ALL is "C", as it's not needed in that case.
1039 The build procedure uses this while dumping, to ensure that the
1040 dumped Emacs does not have its system locale tables initialized,
1041 as that might cause screwups when the dumped Emacs starts up. */
1043 char *lc_all
= getenv ("LC_ALL");
1044 do_initial_setlocale
= ! lc_all
|| strcmp (lc_all
, "C");
1047 /* Set locale now, so that initial error messages are localized properly.
1048 fixup_locale must wait until later, since it builds strings. */
1049 if (do_initial_setlocale
)
1050 setlocale (LC_ALL
, "");
1052 inhibit_window_system
= 0;
1054 /* Handle the -t switch, which specifies filename to use as terminal. */
1058 if (argmatch (argv
, argc
, "-t", "--terminal", 4, &term
, &skip_args
))
1063 result
= emacs_open (term
, O_RDWR
, 0);
1066 char *errstring
= strerror (errno
);
1067 fprintf (stderr
, "%s: %s: %s\n", argv
[0], term
, errstring
);
1073 fprintf (stderr
, "%s: %s: not a tty\n", argv
[0], term
);
1076 fprintf (stderr
, "Using %s\n", term
);
1077 #ifdef HAVE_WINDOW_SYSTEM
1078 inhibit_window_system
= 1; /* -t => -nw */
1085 /* Command line option --no-windows is deprecated and thus not mentioned
1086 in the manual and usage informations. */
1087 if (argmatch (argv
, argc
, "-nw", "--no-window-system", 6, NULL
, &skip_args
)
1088 || argmatch (argv
, argc
, "-nw", "--no-windows", 6, NULL
, &skip_args
))
1089 inhibit_window_system
= 1;
1091 /* Handle the -batch switch, which means don't do interactive display. */
1093 if (argmatch (argv
, argc
, "-batch", "--batch", 5, NULL
, &skip_args
))
1096 Vundo_outer_limit
= Qnil
;
1098 if (argmatch (argv
, argc
, "-script", "--script", 3, &junk
, &skip_args
))
1100 noninteractive
= 1; /* Set batch mode. */
1101 /* Convert --script to -scriptload, un-skip it, and sort again
1102 so that it will be handled in proper sequence. */
1103 /* FIXME broken for --script=FILE - is that supposed to work? */
1104 argv
[skip_args
- 1] = "-scriptload";
1106 sort_args (argc
, argv
);
1109 /* Handle the --help option, which gives a usage message. */
1110 if (argmatch (argv
, argc
, "-help", "--help", 3, NULL
, &skip_args
))
1112 printf (USAGE1
, argv
[0], USAGE2
);
1114 printf (USAGE4
, bug_reporting_address ());
1118 if (! noninteractive
)
1123 inherited_pgroup
= EMACS_GETPGRP (0);
1124 setpgrp (0, getpid ());
1127 #if defined (USG5) && defined (INTERRUPT_INPUT)
1131 #if defined (HAVE_GTK_AND_PTHREAD) && !defined (SYSTEM_MALLOC) && !defined (DOUG_LEA_MALLOC)
1133 extern void malloc_enable_thread
P_ ((void));
1135 malloc_enable_thread ();
1142 /* Don't catch SIGHUP if dumping. */
1149 sigblock (sigmask (SIGHUP
));
1150 /* In --batch mode, don't catch SIGHUP if already ignored.
1151 That makes nohup work. */
1152 if (! noninteractive
1153 || signal (SIGHUP
, SIG_IGN
) != SIG_IGN
)
1154 signal (SIGHUP
, fatal_error_signal
);
1155 sigunblock (sigmask (SIGHUP
));
1160 ! noninteractive
|| initialized
1166 /* Don't catch these signals in batch mode if dumping.
1167 On some machines, this sets static data that would make
1168 signal fail to work right when the dumped Emacs is run. */
1169 signal (SIGQUIT
, fatal_error_signal
);
1170 signal (SIGILL
, fatal_error_signal
);
1171 signal (SIGTRAP
, fatal_error_signal
);
1173 add_user_signal (SIGUSR1
, "sigusr1");
1176 add_user_signal (SIGUSR2
, "sigusr2");
1179 signal (SIGABRT
, fatal_error_signal
);
1182 signal (SIGHWE
, fatal_error_signal
);
1185 signal (SIGPRE
, fatal_error_signal
);
1188 signal (SIGORE
, fatal_error_signal
);
1191 signal (SIGUME
, fatal_error_signal
);
1194 signal (SIGDLK
, fatal_error_signal
);
1197 signal (SIGCPULIM
, fatal_error_signal
);
1200 /* This is missing on some systems - OS/2, for example. */
1201 signal (SIGIOT
, fatal_error_signal
);
1204 signal (SIGEMT
, fatal_error_signal
);
1206 signal (SIGFPE
, fatal_error_signal
);
1208 signal (SIGBUS
, fatal_error_signal
);
1210 signal (SIGSEGV
, fatal_error_signal
);
1212 signal (SIGSYS
, fatal_error_signal
);
1214 signal (SIGTERM
, fatal_error_signal
);
1216 signal (SIGXCPU
, fatal_error_signal
);
1219 signal (SIGXFSZ
, fatal_error_signal
);
1220 #endif /* SIGXFSZ */
1223 /* This just means available memory is getting low. */
1224 signal (SIGDANGER
, memory_warning_signal
);
1228 /* 20 is SIGCHLD, 21 is SIGTTIN, 22 is SIGTTOU. */
1229 signal (SIGXCPU
, fatal_error_signal
);
1231 signal (SIGIOINT
, fatal_error_signal
);
1233 signal (SIGGRANT
, fatal_error_signal
);
1234 signal (SIGRETRACT
, fatal_error_signal
);
1235 signal (SIGSOUND
, fatal_error_signal
);
1236 signal (SIGMSG
, fatal_error_signal
);
1240 noninteractive1
= noninteractive
;
1242 /* Perform basic initializations (not merely interning symbols). */
1249 init_character_once ();
1250 init_charset_once ();
1251 init_coding_once ();
1252 init_syntax_once (); /* Create standard syntax table. */
1253 init_category_once (); /* Create standard category table. */
1254 /* Must be done before init_buffer. */
1255 init_casetab_once ();
1256 init_buffer_once (); /* Create buffer table and some buffers. */
1257 init_minibuf_once (); /* Create list of minibuffers. */
1258 /* Must precede init_window_once. */
1260 /* Call syms_of_xfaces before init_window_once because that
1261 function creates Vterminal_frame. Termcap frames now use
1262 faces, and the face implementation uses some symbols as
1265 /* XXX syms_of_keyboard uses some symbols in keymap.c. It would
1266 be better to arrange things not to have this dependency. */
1268 /* Call syms_of_keyboard before init_window_once because
1269 keyboard sets up symbols that include some face names that
1270 the X support will want to use. This can happen when
1271 CANNOT_DUMP is defined. */
1272 syms_of_keyboard ();
1274 /* Called before syms_of_fileio, because it sets up Qerror_condition. */
1277 /* Before syms_of_coding to initialize Vgc_cons_threshold. */
1279 /* Before syms_of_coding because it initializes Qcharsetp. */
1281 /* Before init_window_once, because it sets up the
1282 Vcoding_system_hash_table. */
1283 syms_of_coding (); /* This should be after syms_of_fileio. */
1285 init_window_once (); /* Init the window system. */
1286 init_fileio_once (); /* Must precede any path manipulation. */
1287 #ifdef HAVE_WINDOW_SYSTEM
1288 init_fringe_once (); /* Swap bitmaps if necessary. */
1289 #endif /* HAVE_WINDOW_SYSTEM */
1294 if (do_initial_setlocale
)
1297 Vsystem_messages_locale
= Vprevious_system_messages_locale
;
1298 Vsystem_time_locale
= Vprevious_system_time_locale
;
1303 #ifdef CLASH_DETECTION
1307 running_asynch_code
= 0;
1309 /* Handle --unibyte and the EMACS_UNIBYTE envvar,
1310 but not while dumping. */
1313 int inhibit_unibyte
= 0;
1315 /* --multibyte overrides EMACS_UNIBYTE. */
1316 if (argmatch (argv
, argc
, "-no-unibyte", "--no-unibyte", 4, NULL
, &skip_args
)
1317 || argmatch (argv
, argc
, "-multibyte", "--multibyte", 4, NULL
, &skip_args
)
1318 /* Ignore EMACS_UNIBYTE before dumping. */
1319 || (!initialized
&& noninteractive
))
1320 inhibit_unibyte
= 1;
1322 /* --unibyte requests that we set up to do everything with single-byte
1323 buffers and strings. We need to handle this before calling
1324 init_lread, init_editfns and other places that generate Lisp strings
1325 from text in the environment. */
1326 /* Actually this shouldn't be needed as of 20.4 in a generally
1327 unibyte environment. As handa says, environment values
1328 aren't now decoded; also existing buffers are now made
1329 unibyte during startup if .emacs sets unibyte. Tested with
1330 8-bit data in environment variables and /etc/passwd, setting
1331 unibyte and Latin-1 in .emacs. -- Dave Love */
1332 if (argmatch (argv
, argc
, "-unibyte", "--unibyte", 4, NULL
, &skip_args
)
1333 || argmatch (argv
, argc
, "-no-multibyte", "--no-multibyte", 4, NULL
, &skip_args
)
1334 || (getenv ("EMACS_UNIBYTE") && !inhibit_unibyte
))
1336 Lisp_Object old_log_max
;
1337 Lisp_Object symbol
, tail
;
1339 symbol
= intern ("default-enable-multibyte-characters");
1340 Fset (symbol
, Qnil
);
1344 /* Erase pre-dump messages in *Messages* now so no abort. */
1345 old_log_max
= Vmessage_log_max
;
1346 XSETFASTINT (Vmessage_log_max
, 0);
1347 message_dolog ("", 0, 1, 0);
1348 Vmessage_log_max
= old_log_max
;
1351 for (tail
= Vbuffer_alist
; CONSP (tail
);
1356 buffer
= Fcdr (XCAR (tail
));
1357 /* Make a multibyte buffer unibyte. */
1358 if (BUF_Z_BYTE (XBUFFER (buffer
)) > BUF_Z (XBUFFER (buffer
)))
1360 struct buffer
*current
= current_buffer
;
1362 set_buffer_temp (XBUFFER (buffer
));
1363 Fset_buffer_multibyte (Qnil
);
1364 set_buffer_temp (current
);
1371 = argmatch (argv
, argc
, "-nl", "--no-loadup", 6, NULL
, &skip_args
);
1374 ns_alloc_autorelease_pool();
1375 if (!noninteractive
)
1379 #ifdef NS_IMPL_COCOA
1380 if (skip_args
< argc
)
1382 if (!strncmp(argv
[skip_args
], "-psn", 4))
1388 if (skip_args
+1 < argc
&& !strncmp(argv
[skip_args
+1], "-psn", 4))
1393 /* This used for remote operation.. not fully implemented yet. */
1394 if (argmatch (argv
, argc
, "-_NSMachLaunch", 0, 3, &tmp
, &skip_args
))
1396 else if (argmatch (argv
, argc
, "-MachLaunch", 0, 3, &tmp
, &skip_args
))
1398 else if (argmatch (argv
, argc
, "-macosx", 0, 2, NULL
, &skip_args
))
1400 else if (argmatch (argv
, argc
, "-NSHost", 0, 3, &tmp
, &skip_args
))
1403 #endif /* HAVE_NS */
1405 #ifdef HAVE_X_WINDOWS
1406 /* Stupid kludge to catch command-line display spec. We can't
1407 handle this argument entirely in window system dependent code
1408 because we don't even know which window system dependent code
1409 to run until we've recognized this argument. */
1411 char *displayname
= 0;
1412 int count_before
= skip_args
;
1414 /* Skip any number of -d options, but only use the last one. */
1417 int count_before_this
= skip_args
;
1419 if (argmatch (argv
, argc
, "-d", "--display", 3, &displayname
, &skip_args
))
1421 else if (argmatch (argv
, argc
, "-display", 0, 3, &displayname
, &skip_args
))
1426 count_before
= count_before_this
;
1429 /* If we have the form --display=NAME,
1430 convert it into -d name.
1431 This requires inserting a new element into argv. */
1432 if (displayname
!= 0 && skip_args
- count_before
== 1)
1434 char **new = (char **) xmalloc (sizeof (char *) * (argc
+ 2));
1437 for (j
= 0; j
< count_before
+ 1; j
++)
1439 new[count_before
+ 1] = "-d";
1440 new[count_before
+ 2] = displayname
;
1441 for (j
= count_before
+ 2; j
<argc
; j
++)
1442 new[j
+ 1] = argv
[j
];
1446 /* Change --display to -d, when its arg is separate. */
1447 else if (displayname
!= 0 && skip_args
> count_before
1448 && argv
[count_before
+ 1][1] == '-')
1449 argv
[count_before
+ 1] = "-d";
1451 /* Don't actually discard this arg. */
1452 skip_args
= count_before
;
1456 /* argmatch must not be used after here,
1457 except when bulding temacs
1458 because the -d argument has not been skipped in skip_args. */
1461 /* Call early 'cause init_environment needs it. */
1463 /* Set defaults for several environment variables. */
1465 init_environment (argc
, argv
, skip_args
);
1472 /* Initialize environment from registry settings. */
1473 init_environment (argv
);
1474 init_ntproc (); /* must precede init_editfns. */
1484 /* egetenv is a pretty low-level facility, which may get called in
1485 many circumstances; it seems flimsy to put off initializing it
1486 until calling init_callproc. */
1487 set_initial_environment ();
1488 /* AIX crashes are reported in system versions 3.2.3 and 3.2.4
1489 if this is not done. Do it after set_global_environment so that we
1490 don't pollute Vglobal_environment. */
1491 /* Setting LANG here will defeat the startup locale processing... */
1496 init_buffer (); /* Init default directory of main buffer. */
1498 init_callproc_1 (); /* Must precede init_cmdargs and init_sys_modes. */
1499 init_cmdargs (argc
, argv
, skip_args
); /* Must precede init_lread. */
1503 /* Erase any pre-dump messages in the message log, to avoid confusion. */
1504 Lisp_Object old_log_max
;
1505 old_log_max
= Vmessage_log_max
;
1506 XSETFASTINT (Vmessage_log_max
, 0);
1507 message_dolog ("", 0, 1, 0);
1508 Vmessage_log_max
= old_log_max
;
1511 init_callproc (); /* Must follow init_cmdargs but not init_sys_modes. */
1514 /* Intern the names of all standard functions and variables;
1515 define standard keys. */
1519 /* The basic levels of Lisp must come first. */
1520 /* And data must come first of all
1521 for the sake of symbols like error-message. */
1528 syms_of_floatfns ();
1531 syms_of_bytecode ();
1533 syms_of_casefiddle ();
1535 syms_of_callproc ();
1536 syms_of_category ();
1538 syms_of_character ();
1540 #ifndef NO_DIR_LIBRARY
1542 #endif /* not NO_DIR_LIBRARY */
1547 #ifdef CLASH_DETECTION
1548 syms_of_filelock ();
1549 #endif /* CLASH_DETECTION */
1552 /* syms_of_keymap (); */
1560 syms_of_terminal ();
1566 syms_of_textprop ();
1567 syms_of_composite ();
1573 #endif /* WINDOWSNT */
1577 #ifdef HAVE_WINDOW_SYSTEM
1580 #endif /* HAVE_WINDOW_SYSTEM */
1581 #ifdef HAVE_X_WINDOWS
1592 #endif /* HAVE_X_WINDOWS */
1599 syms_of_w32select ();
1602 #endif /* HAVE_NTGUI */
1608 syms_of_nsselect ();
1610 #endif /* HAVE_NS */
1613 syms_of_dbusbind ();
1614 #endif /* HAVE_DBUS */
1624 keys_of_casefiddle ();
1627 keys_of_keyboard ();
1633 /* Initialization that must be done even if the global variable
1634 initialized is non zero. */
1636 globals_of_w32fns ();
1637 globals_of_w32menu ();
1638 globals_of_w32select ();
1639 #endif /* HAVE_NTGUI */
1644 init_editfns (); /* init_process uses Voperating_system_release. */
1645 init_process (); /* init_display uses add_keyboard_wait_descriptor. */
1646 init_keyboard (); /* This too must precede init_sys_modes. */
1648 init_vmsproc (); /* And this too. */
1650 if (!noninteractive
)
1653 init_vms_input ();/* init_display calls get_tty_size, that needs this. */
1655 init_display (); /* Determine terminal type. Calls init_sys_modes. */
1659 #ifdef HAVE_WINDOW_SYSTEM
1662 #endif /* HAVE_WINDOW_SYSTEM */
1676 /* Handle -l loadup, args passed by Makefile. */
1677 if (argmatch (argv
, argc
, "-l", "--load", 3, &file
, &skip_args
))
1678 Vtop_level
= Fcons (intern ("load"),
1679 Fcons (build_string (file
), Qnil
));
1680 /* Unless next switch is -nl, load "loadup.el" first thing. */
1682 Vtop_level
= Fcons (intern ("load"),
1683 Fcons (build_string ("loadup.el"), Qnil
));
1690 /* If the execution TZ happens to be the same as the dump TZ,
1691 change it to some other value and then change it back,
1692 to force the underlying implementation to reload the TZ info.
1693 This is needed on implementations that load TZ info from files,
1694 since the TZ file contents may differ between dump and execution. */
1695 char *tz
= getenv ("TZ");
1696 if (tz
&& !strcmp (tz
, dump_tz
))
1706 /* Set up for profiling. This is known to work on FreeBSD,
1707 GNU/Linux and MinGW. It might work on some other systems too.
1708 Give it a try and tell us if it works on your system. To compile
1709 for profiling, add -pg to the switches your platform uses in
1710 CFLAGS and LDFLAGS. For example:
1711 `make CFLAGS="-pg -g -O -DPROFILING=1" LDFLAGS="-pg -g"'. */
1712 #if defined (__FreeBSD__) || defined (GNU_LINUX) || defined(__MINGW32__)
1716 extern void _mcleanup ();
1718 extern unsigned char etext
asm ("etext");
1722 extern void safe_bcopy ();
1723 extern void dump_opcode_frequencies ();
1726 /* This uses safe_bcopy because that function comes first in the
1727 Emacs executable. It might be better to use something that
1728 gives the start of the text segment, but start_of_text is not
1729 defined on all systems now. */
1730 monstartup (safe_bcopy
, &etext
);
1739 #ifdef LOCALTIME_CACHE
1740 /* Some versions of localtime have a bug. They cache the value of the time
1741 zone rather than looking it up every time. Since localtime() is
1742 called to bolt the undumping time into the undumped emacs, this
1743 results in localtime ignoring the TZ environment variable.
1744 This flushes the new TZ value into localtime. */
1746 #endif /* defined (LOCALTIME_CACHE) */
1748 /* Enter editor command loop. This never returns. */
1754 /* Sort the args so we can find the most important ones
1755 at the beginning of argv. */
1757 /* First, here's a table of all the standard options. */
1759 struct standard_args
1767 struct standard_args standard_args
[] =
1769 { "-version", "--version", 150, 0 },
1771 { "-nl", "--no-shared-memory", 140, 0 },
1774 { "-map", "--map-data", 130, 0 },
1776 { "-t", "--terminal", 120, 1 },
1777 { "-nw", "--no-window-system", 110, 0 },
1778 { "-nw", "--no-windows", 110, 0 },
1779 { "-batch", "--batch", 100, 0 },
1780 { "-script", "--script", 100, 1 },
1781 { "-help", "--help", 90, 0 },
1782 { "-no-unibyte", "--no-unibyte", 83, 0 },
1783 { "-multibyte", "--multibyte", 82, 0 },
1784 { "-unibyte", "--unibyte", 81, 0 },
1785 { "-no-multibyte", "--no-multibyte", 80, 0 },
1786 { "-nl", "--no-loadup", 70, 0 },
1787 /* -d must come last before the options handled in startup.el. */
1788 { "-d", "--display", 60, 1 },
1789 { "-display", 0, 60, 1 },
1790 /* Now for the options handled in startup.el. */
1791 { "-Q", "--quick", 55, 0 },
1792 { "-quick", 0, 55, 0 },
1793 { "-q", "--no-init-file", 50, 0 },
1794 { "-no-init-file", 0, 50, 0 },
1795 { "-no-site-file", "--no-site-file", 40, 0 },
1796 { "-u", "--user", 30, 1 },
1797 { "-user", 0, 30, 1 },
1798 { "-debug-init", "--debug-init", 20, 0 },
1799 { "-nbi", "--no-bitmap-icon", 15, 0 },
1800 { "-iconic", "--iconic", 15, 0 },
1801 { "-D", "--basic-display", 12, 0},
1802 { "-basic-display", 0, 12, 0},
1803 { "-bg", "--background-color", 10, 1 },
1804 { "-background", 0, 10, 1 },
1805 { "-fg", "--foreground-color", 10, 1 },
1806 { "-foreground", 0, 10, 1 },
1807 { "-bd", "--border-color", 10, 1 },
1808 { "-bw", "--border-width", 10, 1 },
1809 { "-ib", "--internal-border", 10, 1 },
1810 { "-ms", "--mouse-color", 10, 1 },
1811 { "-cr", "--cursor-color", 10, 1 },
1812 { "-nbc", "--no-blinking-cursor", 10, 0 },
1813 { "-fn", "--font", 10, 1 },
1814 { "-font", 0, 10, 1 },
1815 { "-fs", "--fullscreen", 10, 0 },
1816 { "-fw", "--fullwidth", 10, 0 },
1817 { "-fh", "--fullheight", 10, 0 },
1818 { "-g", "--geometry", 10, 1 },
1819 { "-geometry", 0, 10, 1 },
1820 { "-T", "--title", 10, 1 },
1821 { "-title", 0, 10, 1 },
1822 { "-name", "--name", 10, 1 },
1823 { "-xrm", "--xrm", 10, 1 },
1824 { "-parent-id", "--parent-id", 10, 1 },
1825 { "-r", "--reverse-video", 5, 0 },
1827 { "-reverse", 0, 5, 0 },
1828 { "-hb", "--horizontal-scroll-bars", 5, 0 },
1829 { "-vb", "--vertical-scroll-bars", 5, 0 },
1830 { "-color", "--color", 5, 0},
1831 { "-no-splash", "--no-splash", 3, 0 },
1832 { "-no-desktop", "--no-desktop", 3, 0 },
1834 { "-NSAutoLaunch", 0, 5, 1 },
1835 { "-NXAutoLaunch", 0, 5, 1 },
1836 { "-disable-font-backend", "--disable-font-backend", 65, 0 },
1837 { "-_NSMachLaunch", 0, 85, 1 },
1838 { "-MachLaunch", 0, 85, 1 },
1839 { "-macosx", 0, 85, 0 },
1840 { "-NSHost", 0, 85, 1 },
1842 /* These have the same priority as ordinary file name args,
1843 so they are not reordered with respect to those. */
1844 { "-L", "--directory", 0, 1 },
1845 { "-directory", 0, 0, 1 },
1846 { "-l", "--load", 0, 1 },
1847 { "-load", 0, 0, 1 },
1848 /* This has no longname, because using --scriptload confuses sort_args,
1849 because then the --script long option seems to match twice; ie
1850 you can't have a long option which is a prefix of another long
1851 option. In any case, this is entirely an internal option. */
1852 { "-scriptload", NULL
, 0, 1 },
1853 { "-f", "--funcall", 0, 1 },
1854 { "-funcall", 0, 0, 1 },
1855 { "-eval", "--eval", 0, 1 },
1856 { "-execute", "--execute", 0, 1 },
1857 { "-find-file", "--find-file", 0, 1 },
1858 { "-visit", "--visit", 0, 1 },
1859 { "-file", "--file", 0, 1 },
1860 { "-insert", "--insert", 0, 1 },
1862 { "-NXOpen", 0, 0, 1 },
1863 { "-NXOpenTemp", 0, 0, 1 },
1864 { "-NSOpen", 0, 0, 1 },
1865 { "-NSOpenTemp", 0, 0, 1 },
1866 { "-GSFilePath", 0, 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
];
1970 /* FIXME When match < 0, shouldn't there be some error,
1971 or at least indication to the user that there was a
1978 /* Copy the arguments, in order of decreasing priority, to NEW. */
1980 while (incoming_used
< argc
)
1983 int best_priority
= -9999;
1985 /* Find the highest priority remaining option.
1986 If several have equal priority, take the first of them. */
1987 for (from
= 1; from
< argc
; from
++)
1989 if (argv
[from
] != 0 && priority
[from
] > best_priority
)
1991 best_priority
= priority
[from
];
1994 /* Skip option arguments--they are tied to the options. */
1995 if (options
[from
] > 0)
1996 from
+= options
[from
];
2002 /* Copy the highest priority remaining option, with its args, to NEW.
2003 Unless it is a duplicate of the previous one. */
2004 if (! (options
[best
] == 0
2005 && ! strcmp (new[to
- 1], argv
[best
])))
2007 new[to
++] = argv
[best
];
2008 for (i
= 0; i
< options
[best
]; i
++)
2009 new[to
++] = argv
[best
+ i
+ 1];
2012 incoming_used
+= 1 + (options
[best
] > 0 ? options
[best
] : 0);
2014 /* Clear out this option in ARGV. */
2016 for (i
= 0; i
< options
[best
]; i
++)
2017 argv
[best
+ i
+ 1] = 0;
2020 /* If duplicate options were deleted, fill up extra space with null ptrs. */
2024 bcopy (new, argv
, sizeof (char *) * argc
);
2031 DEFUN ("kill-emacs", Fkill_emacs
, Skill_emacs
, 0, 1, "P",
2032 doc
: /* Exit the Emacs job and kill it.
2033 If ARG is an integer, return ARG as the exit program code.
2034 If ARG is a string, stuff it as keyboard input.
2036 The value of `kill-emacs-hook', if not void,
2037 is a list of functions (of no args),
2038 all of which are called before Emacs is actually killed. */)
2042 struct gcpro gcpro1
;
2049 if (!NILP (Vrun_hooks
) && !noninteractive
)
2050 call1 (Vrun_hooks
, intern ("kill-emacs-hook"));
2054 /* Is it really necessary to do this deassign
2055 when we are going to exit anyway? */
2060 shut_down_emacs (0, 0, STRINGP (arg
) ? arg
: Qnil
);
2062 /* If we have an auto-save list file,
2063 kill it because we are exiting Emacs deliberately (not crashing).
2064 Do it after shut_down_emacs, which does an auto-save. */
2065 if (STRINGP (Vauto_save_list_file_name
))
2066 unlink (SDATA (Vauto_save_list_file_name
));
2068 exit (INTEGERP (arg
) ? XINT (arg
) : EXIT_SUCCESS
);
2074 /* Perform an orderly shutdown of Emacs. Autosave any modified
2075 buffers, kill any child processes, clean up the terminal modes (if
2076 we're in the foreground), and other stuff like that. Don't perform
2077 any redisplay; this may be called when Emacs is shutting down in
2078 the background, or after its X connection has died.
2080 If SIG is a signal number, print a message for it.
2082 This is called by fatal signal handlers, X protocol error handlers,
2086 shut_down_emacs (sig
, no_x
, stuff
)
2090 /* Prevent running of hooks from now on. */
2093 /* Don't update display from now on. */
2094 Vinhibit_redisplay
= Qt
;
2096 /* If we are controlling the terminal, reset terminal modes. */
2097 #ifdef EMACS_HAVE_TTY_PGRP
2099 int pgrp
= EMACS_GETPGRP (0);
2102 if (EMACS_GET_TTY_PGRP (0, &tpgrp
) != -1
2105 reset_all_sys_modes ();
2106 if (sig
&& sig
!= SIGTERM
)
2107 fprintf (stderr
, "Fatal error (%d)", sig
);
2112 reset_all_sys_modes ();
2115 stuff_buffered_input (stuff
);
2118 inhibit_sentinels
= 1;
2120 kill_buffer_processes (Qnil
);
2121 Fdo_auto_save (Qt
, Qnil
);
2123 #ifdef CLASH_DETECTION
2124 unlock_all_files ();
2128 kill_vms_processes ();
2131 #if 0 /* This triggers a bug in XCloseDisplay and is not needed. */
2132 #ifdef HAVE_X_WINDOWS
2133 /* It's not safe to call intern here. Maybe we are crashing. */
2134 if (!noninteractive
&& SYMBOLP (Vinitial_window_system
)
2135 && SCHARS (SYMBOL_NAME (Vinitial_window_system
)) == 1
2136 && SREF (SYMBOL_NAME (Vinitial_window_system
), 0) == 'x'
2138 Fx_close_current_connection ();
2139 #endif /* HAVE_X_WINDOWS */
2143 /* There is a tendency for a SIGIO signal to arrive within exit,
2144 and cause a SIGHUP because the input descriptor is already closed. */
2146 signal (SIGIO
, SIG_IGN
);
2153 /* Do this only if terminating normally, we want glyph matrices
2154 etc. in a core dump. */
2155 if (sig
== 0 || sig
== SIGTERM
)
2157 check_glyph_memory ();
2158 check_message_stack ();
2166 ns_term_shutdown (sig
);
2176 DEFUN ("dump-emacs-data", Fdump_emacs_data
, Sdump_emacs_data
, 1, 1, 0,
2177 doc
: /* Dump current state of Emacs into data file FILENAME.
2178 This function exists on systems that use HAVE_SHM. */)
2180 Lisp_Object filename
;
2182 extern char my_edata
[];
2186 CHECK_STRING (filename
);
2187 filename
= Fexpand_file_name (filename
, Qnil
);
2190 Vpurify_flag
= Qnil
;
2193 /* Tell malloc where start of impure now is. */
2194 /* Also arrange for warnings when nearly out of space. */
2195 #ifndef SYSTEM_MALLOC
2196 memory_warnings (my_edata
, malloc_warning
);
2198 map_out_data (SDATA (filename
));
2205 #else /* not HAVE_SHM */
2207 DEFUN ("dump-emacs", Fdump_emacs
, Sdump_emacs
, 2, 2, 0,
2208 doc
: /* Dump current state of Emacs into executable file FILENAME.
2209 Take symbols from SYMFILE (presumably the file you executed to run Emacs).
2210 This is used in the file `loadup.el' when building Emacs.
2212 You must run Emacs in batch mode in order to dump it. */)
2214 Lisp_Object filename
, symfile
;
2216 extern char my_edata
[];
2219 int count
= SPECPDL_INDEX ();
2223 if (! noninteractive
)
2224 error ("Dumping Emacs works only in batch mode");
2227 if (heap_bss_diff
> MAX_HEAP_BSS_DIFF
)
2229 fprintf (stderr
, "**************************************************\n");
2230 fprintf (stderr
, "Warning: Your system has a gap between BSS and the\n");
2231 fprintf (stderr
, "heap (%lu bytes). This usually means that exec-shield\n",
2233 fprintf (stderr
, "or something similar is in effect. The dump may\n");
2234 fprintf (stderr
, "fail because of this. See the section about\n");
2235 fprintf (stderr
, "exec-shield in etc/PROBLEMS for more information.\n");
2236 fprintf (stderr
, "**************************************************\n");
2238 #endif /* GNU_LINUX */
2240 /* Bind `command-line-processed' to nil before dumping,
2241 so that the dumped Emacs will process its command line
2242 and set up to work with X windows if appropriate. */
2243 symbol
= intern ("command-line-processed");
2244 specbind (symbol
, Qnil
);
2246 CHECK_STRING (filename
);
2247 filename
= Fexpand_file_name (filename
, Qnil
);
2248 if (!NILP (symfile
))
2250 CHECK_STRING (symfile
);
2251 if (SCHARS (symfile
))
2252 symfile
= Fexpand_file_name (symfile
, Qnil
);
2256 Vpurify_flag
= Qnil
;
2259 set_time_zone_rule (dump_tz
);
2260 #ifndef LOCALTIME_CACHE
2261 /* Force a tz reload, since set_time_zone_rule doesn't. */
2268 mapout_data (SDATA (filename
));
2270 /* Tell malloc where start of impure now is. */
2271 /* Also arrange for warnings when nearly out of space. */
2272 #ifndef SYSTEM_MALLOC
2274 /* On Windows, this was done before dumping, and that once suffices.
2275 Meanwhile, my_edata is not valid on Windows. */
2276 memory_warnings (my_edata
, malloc_warning
);
2277 #endif /* not WINDOWSNT */
2279 #if !defined (SYSTEM_MALLOC) && defined (HAVE_GTK_AND_PTHREAD) && !defined SYNC_INPUT
2280 /* Pthread may call malloc before main, and then we will get an endless
2281 loop, because pthread_self (see alloc.c) calls malloc the first time
2282 it is called on some systems. */
2283 reset_malloc_hooks ();
2285 #ifdef DOUG_LEA_MALLOC
2286 malloc_state_ptr
= malloc_get_state ();
2289 #ifdef USE_MMAP_FOR_BUFFERS
2292 unexec (SDATA (filename
),
2293 !NILP (symfile
) ? SDATA (symfile
) : 0, my_edata
, 0, 0);
2294 #ifdef USE_MMAP_FOR_BUFFERS
2297 #ifdef DOUG_LEA_MALLOC
2298 free (malloc_state_ptr
);
2300 #endif /* not VMS */
2304 return unbind_to (count
, Qnil
);
2307 #endif /* not HAVE_SHM */
2309 #endif /* not CANNOT_DUMP */
2312 /* Recover from setlocale (LC_ALL, ""). */
2316 /* The Emacs Lisp reader needs LC_NUMERIC to be "C",
2317 so that numbers are read and printed properly for Emacs Lisp. */
2318 setlocale (LC_NUMERIC
, "C");
2321 /* Set system locale CATEGORY, with previous locale *PLOCALE, to
2324 synchronize_locale (category
, plocale
, desired_locale
)
2326 Lisp_Object
*plocale
;
2327 Lisp_Object desired_locale
;
2329 if (! EQ (*plocale
, desired_locale
))
2331 *plocale
= desired_locale
;
2332 setlocale (category
, (STRINGP (desired_locale
)
2333 ? (char *) SDATA (desired_locale
)
2338 /* Set system time locale to match Vsystem_time_locale, if possible. */
2340 synchronize_system_time_locale ()
2342 synchronize_locale (LC_TIME
, &Vprevious_system_time_locale
,
2343 Vsystem_time_locale
);
2346 /* Set system messages locale to match Vsystem_messages_locale, if
2349 synchronize_system_messages_locale ()
2352 synchronize_locale (LC_MESSAGES
, &Vprevious_system_messages_locale
,
2353 Vsystem_messages_locale
);
2356 #endif /* HAVE_SETLOCALE */
2363 decode_env_path (evarname
, defalt
)
2364 char *evarname
, *defalt
;
2366 register char *path
, *p
;
2367 Lisp_Object lpath
, element
, tem
;
2369 /* It's okay to use getenv here, because this function is only used
2370 to initialize variables when Emacs starts up, and isn't called
2373 path
= (char *) getenv (evarname
);
2379 /* Ensure values from the environment use the proper directory separator. */
2382 p
= alloca (strlen (path
) + 1);
2386 if ('/' == DIRECTORY_SEP
)
2387 dostounix_filename (path
);
2389 unixtodos_filename (path
);
2395 p
= index (path
, SEPCHAR
);
2396 if (!p
) p
= path
+ strlen (path
);
2397 element
= (p
- path
? make_string (path
, p
- path
)
2398 : build_string ("."));
2400 /* Add /: to the front of the name
2401 if it would otherwise be treated as magic. */
2402 tem
= Ffind_file_name_handler (element
, Qt
);
2404 /* However, if the handler says "I'm safe",
2405 don't bother adding /:. */
2409 prop
= Fget (tem
, intern ("safe-magic"));
2415 element
= concat2 (build_string ("/:"), element
);
2417 lpath
= Fcons (element
, lpath
);
2423 return Fnreverse (lpath
);
2429 Qfile_name_handler_alist
= intern ("file-name-handler-alist");
2430 staticpro (&Qfile_name_handler_alist
);
2434 defsubr (&Sdump_emacs_data
);
2436 defsubr (&Sdump_emacs
);
2440 defsubr (&Skill_emacs
);
2442 defsubr (&Sinvocation_name
);
2443 defsubr (&Sinvocation_directory
);
2445 DEFVAR_LISP ("command-line-args", &Vcommand_line_args
,
2446 doc
: /* Args passed by shell to Emacs, as a list of strings.
2447 Many arguments are deleted from the list as they are processed. */);
2449 DEFVAR_LISP ("system-type", &Vsystem_type
,
2450 doc
: /* Value is symbol indicating type of operating system you are using.
2452 `gnu' compiled for a GNU Hurd system.
2453 `gnu/linux' compiled for a GNU/Linux system.
2454 `darwin' compiled for Darwin (GNU-Darwin, Mac OS X, ...).
2455 `ms-dos' compiled as an MS-DOS application.
2456 `windows-nt' compiled as a native W32 application.
2457 `cygwin' compiled using the Cygwin library.
2458 `vax-vms' compiled for a (Open)VMS system.
2459 Anything else indicates some sort of Unix system. */);
2460 Vsystem_type
= intern (SYSTEM_TYPE
);
2462 DEFVAR_LISP ("system-configuration", &Vsystem_configuration
,
2463 doc
: /* Value is string indicating configuration Emacs was built for.
2464 On MS-Windows, the value reflects the OS flavor and version on which
2465 Emacs is running. */);
2466 Vsystem_configuration
= build_string (EMACS_CONFIGURATION
);
2468 DEFVAR_LISP ("system-configuration-options", &Vsystem_configuration_options
,
2469 doc
: /* String containing the configuration options Emacs was built with. */);
2470 Vsystem_configuration_options
= build_string (EMACS_CONFIG_OPTIONS
);
2472 DEFVAR_BOOL ("noninteractive", &noninteractive1
,
2473 doc
: /* Non-nil means Emacs is running without interactive terminal. */);
2475 DEFVAR_LISP ("kill-emacs-hook", &Vkill_emacs_hook
,
2476 doc
: /* Hook to be run when `kill-emacs' is called.
2477 Since `kill-emacs' may be invoked when the terminal is disconnected (or
2478 in other similar situations), functions placed on this hook should not
2479 expect to be able to interact with the user. To ask for confirmation,
2480 see `kill-emacs-query-functions' instead.
2482 The hook is not run in batch mode, i.e., if `noninteractive' is non-nil. */);
2483 Vkill_emacs_hook
= Qnil
;
2485 DEFVAR_INT ("emacs-priority", &emacs_priority
,
2486 doc
: /* Priority for Emacs to run at.
2487 This value is effective only if set before Emacs is dumped,
2488 and only if the Emacs executable is installed with setuid to permit
2489 it to change priority. (Emacs sets its uid back to the real uid.)
2490 Currently, you need to define SET_EMACS_PRIORITY in `config.h'
2491 before you compile Emacs, to enable the code for this feature. */);
2494 DEFVAR_LISP ("path-separator", &Vpath_separator
,
2495 doc
: /* String containing the character that separates directories in
2496 search paths, such as PATH and other similar environment variables. */);
2499 Vpath_separator
= make_string (&c
, 1);
2502 DEFVAR_LISP ("invocation-name", &Vinvocation_name
,
2503 doc
: /* The program name that was used to run Emacs.
2504 Any directory names are omitted. */);
2506 DEFVAR_LISP ("invocation-directory", &Vinvocation_directory
,
2507 doc
: /* The directory in which the Emacs executable was found, to run it.
2508 The value is nil if that directory's name is not known. */);
2510 DEFVAR_LISP ("installation-directory", &Vinstallation_directory
,
2511 doc
: /* A directory within which to look for the `lib-src' and `etc' directories.
2512 This is non-nil when we can't find those directories in their standard
2513 installed locations, but we can find them near where the Emacs executable
2515 Vinstallation_directory
= Qnil
;
2517 DEFVAR_LISP ("system-messages-locale", &Vsystem_messages_locale
,
2518 doc
: /* System locale for messages. */);
2519 Vsystem_messages_locale
= Qnil
;
2521 DEFVAR_LISP ("previous-system-messages-locale",
2522 &Vprevious_system_messages_locale
,
2523 doc
: /* Most recently used system locale for messages. */);
2524 Vprevious_system_messages_locale
= Qnil
;
2526 DEFVAR_LISP ("system-time-locale", &Vsystem_time_locale
,
2527 doc
: /* System locale for time. */);
2528 Vsystem_time_locale
= Qnil
;
2530 DEFVAR_LISP ("previous-system-time-locale", &Vprevious_system_time_locale
,
2531 doc
: /* Most recently used system locale for time. */);
2532 Vprevious_system_time_locale
= Qnil
;
2535 /* arch-tag: 7bfd356a-c720-4612-8ab6-aa4222931c2e
2536 (do not change this comment) */