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, or Carbon under Mac
355 OS X, 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
834 #ifdef RUN_TIME_REMAP
836 run_time_remap (argv
[0]);
839 #if defined (MAC_OSX) || defined (NS_IMPL_COCOA)
841 unexec_init_emacs_zone ();
844 sort_args (argc
, argv
);
846 while (argv
[argc
]) argc
++;
848 if (argmatch (argv
, argc
, "-version", "--version", 3, NULL
, &skip_args
)
849 /* We don't know the version number unless this is a dumped Emacs.
850 So ignore --version otherwise. */
853 Lisp_Object tem
, tem2
;
854 tem
= Fsymbol_value (intern ("emacs-version"));
855 tem2
= Fsymbol_value (intern ("emacs-copyright"));
858 fprintf (stderr
, "Invalid value of `emacs-version'\n");
863 fprintf (stderr
, "Invalid value of `emacs-copyright'\n");
868 printf ("GNU Emacs %s\n", SDATA (tem
));
869 printf ("%s\n", SDATA(tem2
));
870 printf ("GNU Emacs comes with ABSOLUTELY NO WARRANTY.\n");
871 printf ("You may redistribute copies of Emacs\n");
872 printf ("under the terms of the GNU General Public License.\n");
873 printf ("For more information about these matters, ");
874 printf ("see the file named COPYING.\n");
879 #ifdef HAVE_PERSONALITY_LINUX32
880 /* See if there is a gap between the end of BSS and the heap.
881 In that case, set personality and exec ourself again. */
883 && (strcmp (argv
[argc
-1], "dump") == 0
884 || strcmp (argv
[argc
-1], "bootstrap") == 0)
885 && heap_bss_diff
> MAX_HEAP_BSS_DIFF
)
887 if (! getenv ("EMACS_HEAP_EXEC"))
889 /* Set this so we only do this once. */
890 putenv("EMACS_HEAP_EXEC=true");
892 /* A flag to turn off address randomization which is introduced
893 in linux kernel shipped with fedora core 4 */
894 #define ADD_NO_RANDOMIZE 0x0040000
895 personality (PER_LINUX32
| ADD_NO_RANDOMIZE
);
896 #undef ADD_NO_RANDOMIZE
898 execvp (argv
[0], argv
);
900 /* If the exec fails, try to dump anyway. */
904 #endif /* HAVE_PERSONALITY_LINUX32 */
907 /* Map in shared memory, if we are using that. */
909 if (argmatch (argv
, argc
, "-nl", "--no-shared-memory", 6, NULL
, &skip_args
))
912 /* The shared memory was just restored, which clobbered this. */
918 /* The shared memory was just restored, which clobbered this. */
924 /* Skip process serial number passed in the form -psn_x_y as
925 command-line argument. The WindowServer adds this option when
926 Emacs is invoked from the Finder or by the `open' command. In
927 these cases, the working directory becomes `/', so we change it
928 to the user's home directory. */
929 if (argc
> skip_args
+ 1 && strncmp (argv
[skip_args
+1], "-psn_", 5) == 0)
931 chdir (getenv ("HOME"));
937 /* If -map specified, map the data file in. */
940 if (argmatch (argv
, argc
, "-map", "--map-data", 3, &file
, &skip_args
))
944 #ifdef LINK_CRTL_SHARE
945 #ifdef SHARABLE_LIB_BUG
946 /* Bletcherous shared libraries! */
948 stdin
= fdopen (0, "r");
950 stdout
= fdopen (1, "w");
952 stderr
= fdopen (2, "w");
955 #endif /* SHARABLE_LIB_BUG */
956 #endif /* LINK_CRTL_SHARE */
959 #if defined (HAVE_SETRLIMIT) && defined (RLIMIT_STACK)
960 /* Extend the stack space available.
961 Don't do that if dumping, since some systems (e.g. DJGPP)
962 might define a smaller stack limit at that time. */
965 && (!noninteractive
|| initialized
)
967 && !getrlimit (RLIMIT_STACK
, &rlim
))
970 extern size_t re_max_failures
;
971 /* Approximate the amount regex.c needs per unit of re_max_failures. */
972 int ratio
= 20 * sizeof (char *);
973 /* Then add 33% to cover the size of the smaller stacks that regex.c
974 successively allocates and discards, on its way to the maximum. */
976 /* Add in some extra to cover
977 what we're likely to use for other reasons. */
978 newlim
= re_max_failures
* ratio
+ 200000;
980 /* NetBSD (at least NetBSD 1.2G and former) has a bug in its
981 stack allocation routine for new process that the allocation
982 fails if stack limit is not on page boundary. So, round up the
983 new limit to page boundary. */
984 newlim
= (newlim
+ getpagesize () - 1) / getpagesize () * getpagesize();
986 if (newlim
> rlim
.rlim_max
)
988 newlim
= rlim
.rlim_max
;
989 /* Don't let regex.c overflow the stack we have. */
990 re_max_failures
= (newlim
- 200000) / ratio
;
992 if (rlim
.rlim_cur
< newlim
)
993 rlim
.rlim_cur
= newlim
;
995 setrlimit (RLIMIT_STACK
, &rlim
);
997 #endif /* HAVE_SETRLIMIT and RLIMIT_STACK */
999 /* Record (approximately) where the stack begins. */
1000 stack_bottom
= &stack_bottom_variable
;
1004 #ifndef SYSTEM_MALLOC
1005 /* Arrange to get warning messages as memory fills up. */
1006 memory_warnings (0, malloc_warning
);
1008 /* Call malloc at least once, to run the initial __malloc_hook.
1009 Also call realloc and free for consistency. */
1010 free (realloc (malloc (4), 4));
1013 /* Arrange to disable interrupt input inside malloc etc. */
1014 uninterrupt_malloc ();
1015 # endif /* not SYNC_INPUT */
1016 #endif /* not SYSTEM_MALLOC */
1018 #ifdef FORWARD_SIGNAL_TO_MAIN_THREAD
1019 main_thread
= pthread_self ();
1020 #endif /* FORWARD_SIGNAL_TO_MAIN_THREAD */
1022 #if defined (MSDOS) || defined (WINDOWSNT)
1023 /* We do all file input/output as binary files. When we need to translate
1024 newlines, we do that manually. */
1026 #endif /* MSDOS || WINDOWSNT */
1030 if (!isatty (fileno (stdin
)))
1031 setmode (fileno (stdin
), O_BINARY
);
1032 if (!isatty (fileno (stdout
)))
1035 setmode (fileno (stdout
), O_BINARY
);
1037 #else /* not __DJGPP__ >= 2 */
1038 (stdin
)->_flag
&= ~_IOTEXT
;
1039 (stdout
)->_flag
&= ~_IOTEXT
;
1040 (stderr
)->_flag
&= ~_IOTEXT
;
1041 #endif /* not __DJGPP__ >= 2 */
1044 #ifdef SET_EMACS_PRIORITY
1046 nice (emacs_priority
);
1048 #endif /* SET_EMACS_PRIORITY */
1050 /* Skip initial setlocale if LC_ALL is "C", as it's not needed in that case.
1051 The build procedure uses this while dumping, to ensure that the
1052 dumped Emacs does not have its system locale tables initialized,
1053 as that might cause screwups when the dumped Emacs starts up. */
1055 char *lc_all
= getenv ("LC_ALL");
1056 do_initial_setlocale
= ! lc_all
|| strcmp (lc_all
, "C");
1059 /* Set locale now, so that initial error messages are localized properly.
1060 fixup_locale must wait until later, since it builds strings. */
1061 if (do_initial_setlocale
)
1062 setlocale (LC_ALL
, "");
1064 inhibit_window_system
= 0;
1066 /* Handle the -t switch, which specifies filename to use as terminal. */
1070 if (argmatch (argv
, argc
, "-t", "--terminal", 4, &term
, &skip_args
))
1075 result
= emacs_open (term
, O_RDWR
, 0);
1078 char *errstring
= strerror (errno
);
1079 fprintf (stderr
, "%s: %s: %s\n", argv
[0], term
, errstring
);
1085 fprintf (stderr
, "%s: %s: not a tty\n", argv
[0], term
);
1088 fprintf (stderr
, "Using %s\n", term
);
1089 #ifdef HAVE_WINDOW_SYSTEM
1090 inhibit_window_system
= 1; /* -t => -nw */
1097 /* Command line option --no-windows is deprecated and thus not mentioned
1098 in the manual and usage informations. */
1099 if (argmatch (argv
, argc
, "-nw", "--no-window-system", 6, NULL
, &skip_args
)
1100 || argmatch (argv
, argc
, "-nw", "--no-windows", 6, NULL
, &skip_args
))
1101 inhibit_window_system
= 1;
1103 /* Handle the -batch switch, which means don't do interactive display. */
1105 if (argmatch (argv
, argc
, "-batch", "--batch", 5, NULL
, &skip_args
))
1108 Vundo_outer_limit
= Qnil
;
1110 if (argmatch (argv
, argc
, "-script", "--script", 3, &junk
, &skip_args
))
1112 noninteractive
= 1; /* Set batch mode. */
1113 /* Convert --script to -scriptload, un-skip it, and sort again
1114 so that it will be handled in proper sequence. */
1115 /* FIXME broken for --script=FILE - is that supposed to work? */
1116 argv
[skip_args
- 1] = "-scriptload";
1118 sort_args (argc
, argv
);
1121 /* Handle the --help option, which gives a usage message. */
1122 if (argmatch (argv
, argc
, "-help", "--help", 3, NULL
, &skip_args
))
1124 printf (USAGE1
, argv
[0], USAGE2
);
1126 printf (USAGE4
, bug_reporting_address ());
1130 if (! noninteractive
)
1135 inherited_pgroup
= EMACS_GETPGRP (0);
1136 setpgrp (0, getpid ());
1139 #if defined (USG5) && defined (INTERRUPT_INPUT)
1143 #if defined (HAVE_GTK_AND_PTHREAD) && !defined (SYSTEM_MALLOC) && !defined (DOUG_LEA_MALLOC)
1145 extern void malloc_enable_thread
P_ ((void));
1147 malloc_enable_thread ();
1154 /* Don't catch SIGHUP if dumping. */
1161 sigblock (sigmask (SIGHUP
));
1162 /* In --batch mode, don't catch SIGHUP if already ignored.
1163 That makes nohup work. */
1164 if (! noninteractive
1165 || signal (SIGHUP
, SIG_IGN
) != SIG_IGN
)
1166 signal (SIGHUP
, fatal_error_signal
);
1167 sigunblock (sigmask (SIGHUP
));
1172 ! noninteractive
|| initialized
1178 /* Don't catch these signals in batch mode if dumping.
1179 On some machines, this sets static data that would make
1180 signal fail to work right when the dumped Emacs is run. */
1181 signal (SIGQUIT
, fatal_error_signal
);
1182 signal (SIGILL
, fatal_error_signal
);
1183 signal (SIGTRAP
, fatal_error_signal
);
1185 add_user_signal (SIGUSR1
, "sigusr1");
1188 add_user_signal (SIGUSR2
, "sigusr2");
1191 signal (SIGABRT
, fatal_error_signal
);
1194 signal (SIGHWE
, fatal_error_signal
);
1197 signal (SIGPRE
, fatal_error_signal
);
1200 signal (SIGORE
, fatal_error_signal
);
1203 signal (SIGUME
, fatal_error_signal
);
1206 signal (SIGDLK
, fatal_error_signal
);
1209 signal (SIGCPULIM
, fatal_error_signal
);
1212 /* This is missing on some systems - OS/2, for example. */
1213 signal (SIGIOT
, fatal_error_signal
);
1216 signal (SIGEMT
, fatal_error_signal
);
1218 signal (SIGFPE
, fatal_error_signal
);
1220 signal (SIGBUS
, fatal_error_signal
);
1222 signal (SIGSEGV
, fatal_error_signal
);
1224 signal (SIGSYS
, fatal_error_signal
);
1226 signal (SIGTERM
, fatal_error_signal
);
1228 signal (SIGXCPU
, fatal_error_signal
);
1231 signal (SIGXFSZ
, fatal_error_signal
);
1232 #endif /* SIGXFSZ */
1235 /* This just means available memory is getting low. */
1236 signal (SIGDANGER
, memory_warning_signal
);
1240 /* 20 is SIGCHLD, 21 is SIGTTIN, 22 is SIGTTOU. */
1241 signal (SIGXCPU
, fatal_error_signal
);
1243 signal (SIGIOINT
, fatal_error_signal
);
1245 signal (SIGGRANT
, fatal_error_signal
);
1246 signal (SIGRETRACT
, fatal_error_signal
);
1247 signal (SIGSOUND
, fatal_error_signal
);
1248 signal (SIGMSG
, fatal_error_signal
);
1252 noninteractive1
= noninteractive
;
1254 /* Perform basic initializations (not merely interning symbols). */
1261 init_character_once ();
1262 init_charset_once ();
1263 init_coding_once ();
1264 init_syntax_once (); /* Create standard syntax table. */
1265 init_category_once (); /* Create standard category table. */
1266 /* Must be done before init_buffer. */
1267 init_casetab_once ();
1268 init_buffer_once (); /* Create buffer table and some buffers. */
1269 init_minibuf_once (); /* Create list of minibuffers. */
1270 /* Must precede init_window_once. */
1272 /* Call syms_of_xfaces before init_window_once because that
1273 function creates Vterminal_frame. Termcap frames now use
1274 faces, and the face implementation uses some symbols as
1277 /* XXX syms_of_keyboard uses some symbols in keymap.c. It would
1278 be better to arrange things not to have this dependency. */
1280 /* Call syms_of_keyboard before init_window_once because
1281 keyboard sets up symbols that include some face names that
1282 the X support will want to use. This can happen when
1283 CANNOT_DUMP is defined. */
1284 syms_of_keyboard ();
1287 /* init_window_once calls make_terminal_frame which on Mac OS
1288 creates a full-fledge output_mac type frame. This does not
1289 work correctly before syms_of_textprop, syms_of_macfns,
1290 syms_of_ccl, syms_of_fontset, syms_of_xterm, syms_of_search,
1291 syms_of_frame, mac_term_init, and init_keyboard have already
1293 syms_of_textprop ();
1299 syms_of_macselect ();
1304 mac_term_init (build_string ("Mac"), NULL
, NULL
);
1307 /* Called before syms_of_fileio, because it sets up Qerror_condition. */
1310 /* Before syms_of_coding to initialize Vgc_cons_threshold. */
1312 /* Before syms_of_coding because it initializes Qcharsetp. */
1314 /* Before init_window_once, because it sets up the
1315 Vcoding_system_hash_table. */
1316 syms_of_coding (); /* This should be after syms_of_fileio. */
1318 init_window_once (); /* Init the window system. */
1319 init_fileio_once (); /* Must precede any path manipulation. */
1320 #ifdef HAVE_WINDOW_SYSTEM
1321 init_fringe_once (); /* Swap bitmaps if necessary. */
1322 #endif /* HAVE_WINDOW_SYSTEM */
1327 if (do_initial_setlocale
)
1330 Vsystem_messages_locale
= Vprevious_system_messages_locale
;
1331 Vsystem_time_locale
= Vprevious_system_time_locale
;
1336 #ifdef CLASH_DETECTION
1340 running_asynch_code
= 0;
1342 /* Handle --unibyte and the EMACS_UNIBYTE envvar,
1343 but not while dumping. */
1346 int inhibit_unibyte
= 0;
1348 /* --multibyte overrides EMACS_UNIBYTE. */
1349 if (argmatch (argv
, argc
, "-no-unibyte", "--no-unibyte", 4, NULL
, &skip_args
)
1350 || argmatch (argv
, argc
, "-multibyte", "--multibyte", 4, NULL
, &skip_args
)
1351 /* Ignore EMACS_UNIBYTE before dumping. */
1352 || (!initialized
&& noninteractive
))
1353 inhibit_unibyte
= 1;
1355 /* --unibyte requests that we set up to do everything with single-byte
1356 buffers and strings. We need to handle this before calling
1357 init_lread, init_editfns and other places that generate Lisp strings
1358 from text in the environment. */
1359 /* Actually this shouldn't be needed as of 20.4 in a generally
1360 unibyte environment. As handa says, environment values
1361 aren't now decoded; also existing buffers are now made
1362 unibyte during startup if .emacs sets unibyte. Tested with
1363 8-bit data in environment variables and /etc/passwd, setting
1364 unibyte and Latin-1 in .emacs. -- Dave Love */
1365 if (argmatch (argv
, argc
, "-unibyte", "--unibyte", 4, NULL
, &skip_args
)
1366 || argmatch (argv
, argc
, "-no-multibyte", "--no-multibyte", 4, NULL
, &skip_args
)
1367 || (getenv ("EMACS_UNIBYTE") && !inhibit_unibyte
))
1369 Lisp_Object old_log_max
;
1370 Lisp_Object symbol
, tail
;
1372 symbol
= intern ("default-enable-multibyte-characters");
1373 Fset (symbol
, Qnil
);
1377 /* Erase pre-dump messages in *Messages* now so no abort. */
1378 old_log_max
= Vmessage_log_max
;
1379 XSETFASTINT (Vmessage_log_max
, 0);
1380 message_dolog ("", 0, 1, 0);
1381 Vmessage_log_max
= old_log_max
;
1384 for (tail
= Vbuffer_alist
; CONSP (tail
);
1389 buffer
= Fcdr (XCAR (tail
));
1390 /* Make a multibyte buffer unibyte. */
1391 if (BUF_Z_BYTE (XBUFFER (buffer
)) > BUF_Z (XBUFFER (buffer
)))
1393 struct buffer
*current
= current_buffer
;
1395 set_buffer_temp (XBUFFER (buffer
));
1396 Fset_buffer_multibyte (Qnil
);
1397 set_buffer_temp (current
);
1404 = argmatch (argv
, argc
, "-nl", "--no-loadup", 6, NULL
, &skip_args
);
1407 ns_alloc_autorelease_pool();
1408 if (!noninteractive
)
1412 #ifdef NS_IMPL_COCOA
1413 if (skip_args
< argc
)
1415 if (!strncmp(argv
[skip_args
], "-psn", 4))
1421 if (skip_args
+1 < argc
&& !strncmp(argv
[skip_args
+1], "-psn", 4))
1426 /* This used for remote operation.. not fully implemented yet. */
1427 if (argmatch (argv
, argc
, "-_NSMachLaunch", 0, 3, &tmp
, &skip_args
))
1429 else if (argmatch (argv
, argc
, "-MachLaunch", 0, 3, &tmp
, &skip_args
))
1431 else if (argmatch (argv
, argc
, "-macosx", 0, 2, NULL
, &skip_args
))
1433 else if (argmatch (argv
, argc
, "-NSHost", 0, 3, &tmp
, &skip_args
))
1436 #endif /* HAVE_NS */
1438 #ifdef HAVE_X_WINDOWS
1439 /* Stupid kludge to catch command-line display spec. We can't
1440 handle this argument entirely in window system dependent code
1441 because we don't even know which window system dependent code
1442 to run until we've recognized this argument. */
1444 char *displayname
= 0;
1445 int count_before
= skip_args
;
1447 /* Skip any number of -d options, but only use the last one. */
1450 int count_before_this
= skip_args
;
1452 if (argmatch (argv
, argc
, "-d", "--display", 3, &displayname
, &skip_args
))
1454 else if (argmatch (argv
, argc
, "-display", 0, 3, &displayname
, &skip_args
))
1459 count_before
= count_before_this
;
1462 /* If we have the form --display=NAME,
1463 convert it into -d name.
1464 This requires inserting a new element into argv. */
1465 if (displayname
!= 0 && skip_args
- count_before
== 1)
1467 char **new = (char **) xmalloc (sizeof (char *) * (argc
+ 2));
1470 for (j
= 0; j
< count_before
+ 1; j
++)
1472 new[count_before
+ 1] = "-d";
1473 new[count_before
+ 2] = displayname
;
1474 for (j
= count_before
+ 2; j
<argc
; j
++)
1475 new[j
+ 1] = argv
[j
];
1479 /* Change --display to -d, when its arg is separate. */
1480 else if (displayname
!= 0 && skip_args
> count_before
1481 && argv
[count_before
+ 1][1] == '-')
1482 argv
[count_before
+ 1] = "-d";
1484 /* Don't actually discard this arg. */
1485 skip_args
= count_before
;
1489 /* argmatch must not be used after here,
1490 except when bulding temacs
1491 because the -d argument has not been skipped in skip_args. */
1494 /* Call early 'cause init_environment needs it. */
1496 /* Set defaults for several environment variables. */
1498 init_environment (argc
, argv
, skip_args
);
1505 /* Initialize environment from registry settings. */
1506 init_environment (argv
);
1507 init_ntproc (); /* must precede init_editfns. */
1510 #if defined (MAC_OSX) && defined (HAVE_CARBON)
1512 init_mac_osx_environment ();
1522 /* egetenv is a pretty low-level facility, which may get called in
1523 many circumstances; it seems flimsy to put off initializing it
1524 until calling init_callproc. */
1525 set_initial_environment ();
1526 /* AIX crashes are reported in system versions 3.2.3 and 3.2.4
1527 if this is not done. Do it after set_global_environment so that we
1528 don't pollute Vglobal_environment. */
1529 /* Setting LANG here will defeat the startup locale processing... */
1534 init_buffer (); /* Init default directory of main buffer. */
1536 init_callproc_1 (); /* Must precede init_cmdargs and init_sys_modes. */
1537 init_cmdargs (argc
, argv
, skip_args
); /* Must precede init_lread. */
1541 /* Erase any pre-dump messages in the message log, to avoid confusion. */
1542 Lisp_Object old_log_max
;
1543 old_log_max
= Vmessage_log_max
;
1544 XSETFASTINT (Vmessage_log_max
, 0);
1545 message_dolog ("", 0, 1, 0);
1546 Vmessage_log_max
= old_log_max
;
1549 init_callproc (); /* Must follow init_cmdargs but not init_sys_modes. */
1552 /* Intern the names of all standard functions and variables;
1553 define standard keys. */
1557 /* The basic levels of Lisp must come first. */
1558 /* And data must come first of all
1559 for the sake of symbols like error-message. */
1560 /* Called before init_window_once for Mac OS Classic. */
1567 syms_of_floatfns ();
1570 syms_of_bytecode ();
1572 syms_of_casefiddle ();
1574 syms_of_callproc ();
1575 syms_of_category ();
1577 syms_of_character ();
1579 #ifndef NO_DIR_LIBRARY
1581 #endif /* not NO_DIR_LIBRARY */
1586 #ifdef CLASH_DETECTION
1587 syms_of_filelock ();
1588 #endif /* CLASH_DETECTION */
1591 /* syms_of_keymap (); */
1599 syms_of_terminal ();
1605 syms_of_textprop ();
1606 syms_of_composite ();
1612 #endif /* WINDOWSNT */
1616 #ifdef HAVE_WINDOW_SYSTEM
1619 #endif /* HAVE_WINDOW_SYSTEM */
1620 #ifdef HAVE_X_WINDOWS
1631 #endif /* HAVE_X_WINDOWS */
1638 syms_of_w32select ();
1641 #endif /* HAVE_NTGUI */
1643 #if defined (MAC_OSX) && defined (HAVE_CARBON)
1647 syms_of_macselect ();
1649 #endif /* MAC_OSX && HAVE_CARBON */
1655 syms_of_nsselect ();
1657 #endif /* HAVE_NS */
1660 syms_of_dbusbind ();
1661 #endif /* HAVE_DBUS */
1671 keys_of_casefiddle ();
1674 keys_of_keyboard ();
1680 /* Initialization that must be done even if the global variable
1681 initialized is non zero. */
1683 globals_of_w32fns ();
1684 globals_of_w32menu ();
1685 globals_of_w32select ();
1686 #endif /* HAVE_NTGUI */
1691 init_editfns (); /* init_process uses Voperating_system_release. */
1692 init_process (); /* init_display uses add_keyboard_wait_descriptor. */
1693 init_keyboard (); /* This too must precede init_sys_modes. */
1695 init_vmsproc (); /* And this too. */
1697 if (!noninteractive
)
1700 init_vms_input ();/* init_display calls get_tty_size, that needs this. */
1702 init_display (); /* Determine terminal type. Calls init_sys_modes. */
1706 #ifdef HAVE_WINDOW_SYSTEM
1709 #endif /* HAVE_WINDOW_SYSTEM */
1723 /* Handle -l loadup, args passed by Makefile. */
1724 if (argmatch (argv
, argc
, "-l", "--load", 3, &file
, &skip_args
))
1725 Vtop_level
= Fcons (intern ("load"),
1726 Fcons (build_string (file
), Qnil
));
1727 /* Unless next switch is -nl, load "loadup.el" first thing. */
1729 Vtop_level
= Fcons (intern ("load"),
1730 Fcons (build_string ("loadup.el"), Qnil
));
1737 /* If the execution TZ happens to be the same as the dump TZ,
1738 change it to some other value and then change it back,
1739 to force the underlying implementation to reload the TZ info.
1740 This is needed on implementations that load TZ info from files,
1741 since the TZ file contents may differ between dump and execution. */
1742 char *tz
= getenv ("TZ");
1743 if (tz
&& !strcmp (tz
, dump_tz
))
1753 /* Set up for profiling. This is known to work on FreeBSD,
1754 GNU/Linux and MinGW. It might work on some other systems too.
1755 Give it a try and tell us if it works on your system. To compile
1756 for profiling, add -pg to the switches your platform uses in
1757 CFLAGS and LDFLAGS. For example:
1758 `make CFLAGS="-pg -g -O -DPROFILING=1" LDFLAGS="-pg -g"'. */
1759 #if defined (__FreeBSD__) || defined (GNU_LINUX) || defined(__MINGW32__)
1763 extern void _mcleanup ();
1765 extern unsigned char etext
asm ("etext");
1769 extern void safe_bcopy ();
1770 extern void dump_opcode_frequencies ();
1773 /* This uses safe_bcopy because that function comes first in the
1774 Emacs executable. It might be better to use something that
1775 gives the start of the text segment, but start_of_text is not
1776 defined on all systems now. */
1777 monstartup (safe_bcopy
, &etext
);
1786 #ifdef LOCALTIME_CACHE
1787 /* Some versions of localtime have a bug. They cache the value of the time
1788 zone rather than looking it up every time. Since localtime() is
1789 called to bolt the undumping time into the undumped emacs, this
1790 results in localtime ignoring the TZ environment variable.
1791 This flushes the new TZ value into localtime. */
1793 #endif /* defined (LOCALTIME_CACHE) */
1795 /* Enter editor command loop. This never returns. */
1801 /* Sort the args so we can find the most important ones
1802 at the beginning of argv. */
1804 /* First, here's a table of all the standard options. */
1806 struct standard_args
1814 struct standard_args standard_args
[] =
1816 { "-version", "--version", 150, 0 },
1818 { "-nl", "--no-shared-memory", 140, 0 },
1821 { "-map", "--map-data", 130, 0 },
1823 { "-t", "--terminal", 120, 1 },
1824 { "-nw", "--no-window-system", 110, 0 },
1825 { "-nw", "--no-windows", 110, 0 },
1826 { "-batch", "--batch", 100, 0 },
1827 { "-script", "--script", 100, 1 },
1828 { "-help", "--help", 90, 0 },
1829 { "-no-unibyte", "--no-unibyte", 83, 0 },
1830 { "-multibyte", "--multibyte", 82, 0 },
1831 { "-unibyte", "--unibyte", 81, 0 },
1832 { "-no-multibyte", "--no-multibyte", 80, 0 },
1833 { "-nl", "--no-loadup", 70, 0 },
1834 /* -d must come last before the options handled in startup.el. */
1835 { "-d", "--display", 60, 1 },
1836 { "-display", 0, 60, 1 },
1837 /* Now for the options handled in startup.el. */
1838 { "-Q", "--quick", 55, 0 },
1839 { "-quick", 0, 55, 0 },
1840 { "-q", "--no-init-file", 50, 0 },
1841 { "-no-init-file", 0, 50, 0 },
1842 { "-no-site-file", "--no-site-file", 40, 0 },
1843 { "-u", "--user", 30, 1 },
1844 { "-user", 0, 30, 1 },
1845 { "-debug-init", "--debug-init", 20, 0 },
1846 { "-nbi", "--no-bitmap-icon", 15, 0 },
1847 { "-iconic", "--iconic", 15, 0 },
1848 { "-D", "--basic-display", 12, 0},
1849 { "-basic-display", 0, 12, 0},
1850 { "-bg", "--background-color", 10, 1 },
1851 { "-background", 0, 10, 1 },
1852 { "-fg", "--foreground-color", 10, 1 },
1853 { "-foreground", 0, 10, 1 },
1854 { "-bd", "--border-color", 10, 1 },
1855 { "-bw", "--border-width", 10, 1 },
1856 { "-ib", "--internal-border", 10, 1 },
1857 { "-ms", "--mouse-color", 10, 1 },
1858 { "-cr", "--cursor-color", 10, 1 },
1859 { "-nbc", "--no-blinking-cursor", 10, 0 },
1860 { "-fn", "--font", 10, 1 },
1861 { "-font", 0, 10, 1 },
1862 { "-fs", "--fullscreen", 10, 0 },
1863 { "-fw", "--fullwidth", 10, 0 },
1864 { "-fh", "--fullheight", 10, 0 },
1865 { "-g", "--geometry", 10, 1 },
1866 { "-geometry", 0, 10, 1 },
1867 { "-T", "--title", 10, 1 },
1868 { "-title", 0, 10, 1 },
1869 { "-name", "--name", 10, 1 },
1870 { "-xrm", "--xrm", 10, 1 },
1871 { "-parent-id", "--parent-id", 10, 1 },
1872 { "-r", "--reverse-video", 5, 0 },
1874 { "-reverse", 0, 5, 0 },
1875 { "-hb", "--horizontal-scroll-bars", 5, 0 },
1876 { "-vb", "--vertical-scroll-bars", 5, 0 },
1877 { "-color", "--color", 5, 0},
1878 { "-no-splash", "--no-splash", 3, 0 },
1879 { "-no-desktop", "--no-desktop", 3, 0 },
1881 { "-NSAutoLaunch", 0, 5, 1 },
1882 { "-NXAutoLaunch", 0, 5, 1 },
1883 { "-disable-font-backend", "--disable-font-backend", 65, 0 },
1884 { "-_NSMachLaunch", 0, 85, 1 },
1885 { "-MachLaunch", 0, 85, 1 },
1886 { "-macosx", 0, 85, 0 },
1887 { "-NSHost", 0, 85, 1 },
1889 /* These have the same priority as ordinary file name args,
1890 so they are not reordered with respect to those. */
1891 { "-L", "--directory", 0, 1 },
1892 { "-directory", 0, 0, 1 },
1893 { "-l", "--load", 0, 1 },
1894 { "-load", 0, 0, 1 },
1895 /* This has no longname, because using --scriptload confuses sort_args,
1896 because then the --script long option seems to match twice; ie
1897 you can't have a long option which is a prefix of another long
1898 option. In any case, this is entirely an internal option. */
1899 { "-scriptload", NULL
, 0, 1 },
1900 { "-f", "--funcall", 0, 1 },
1901 { "-funcall", 0, 0, 1 },
1902 { "-eval", "--eval", 0, 1 },
1903 { "-execute", "--execute", 0, 1 },
1904 { "-find-file", "--find-file", 0, 1 },
1905 { "-visit", "--visit", 0, 1 },
1906 { "-file", "--file", 0, 1 },
1907 { "-insert", "--insert", 0, 1 },
1909 { "-NXOpen", 0, 0, 1 },
1910 { "-NXOpenTemp", 0, 0, 1 },
1911 { "-NSOpen", 0, 0, 1 },
1912 { "-NSOpenTemp", 0, 0, 1 },
1913 { "-GSFilePath", 0, 0, 1 },
1915 /* This should be processed after ordinary file name args and the like. */
1916 { "-kill", "--kill", -10, 0 },
1919 /* Reorder the elements of ARGV (assumed to have ARGC elements)
1920 so that the highest priority ones come first.
1921 Do not change the order of elements of equal priority.
1922 If an option takes an argument, keep it and its argument together.
1924 If an option that takes no argument appears more
1925 than once, eliminate all but one copy of it. */
1928 sort_args (argc
, argv
)
1932 char **new = (char **) xmalloc (sizeof (char *) * argc
);
1933 /* For each element of argv,
1934 the corresponding element of options is:
1935 0 for an option that takes no arguments,
1936 1 for an option that takes one argument, etc.
1937 -1 for an ordinary non-option argument. */
1938 int *options
= (int *) xmalloc (sizeof (int) * argc
);
1939 int *priority
= (int *) xmalloc (sizeof (int) * argc
);
1941 int incoming_used
= 1;
1945 /* Categorize all the options,
1946 and figure out which argv elts are option arguments. */
1947 for (from
= 1; from
< argc
; from
++)
1951 if (argv
[from
][0] == '-')
1956 /* If we have found "--", don't consider
1957 any more arguments as options. */
1958 if (argv
[from
][1] == '-' && argv
[from
][2] == 0)
1960 /* Leave the "--", and everything following it, at the end. */
1961 for (; from
< argc
; from
++)
1963 priority
[from
] = -100;
1969 /* Look for a match with a known old-fashioned option. */
1970 for (i
= 0; i
< sizeof (standard_args
) / sizeof (standard_args
[0]); i
++)
1971 if (!strcmp (argv
[from
], standard_args
[i
].name
))
1973 options
[from
] = standard_args
[i
].nargs
;
1974 priority
[from
] = standard_args
[i
].priority
;
1975 if (from
+ standard_args
[i
].nargs
>= argc
)
1976 fatal ("Option `%s' requires an argument\n", argv
[from
]);
1977 from
+= standard_args
[i
].nargs
;
1981 /* Look for a match with a known long option.
1982 MATCH is -1 if no match so far, -2 if two or more matches so far,
1983 >= 0 (the table index of the match) if just one match so far. */
1984 if (argv
[from
][1] == '-')
1987 thislen
= strlen (argv
[from
]);
1988 equals
= index (argv
[from
], '=');
1990 thislen
= equals
- argv
[from
];
1993 i
< sizeof (standard_args
) / sizeof (standard_args
[0]); i
++)
1994 if (standard_args
[i
].longname
1995 && !strncmp (argv
[from
], standard_args
[i
].longname
,
2004 /* If we found exactly one match, use that. */
2007 options
[from
] = standard_args
[match
].nargs
;
2008 priority
[from
] = standard_args
[match
].priority
;
2009 /* If --OPTION=VALUE syntax is used,
2010 this option uses just one argv element. */
2013 if (from
+ options
[from
] >= argc
)
2014 fatal ("Option `%s' requires an argument\n", argv
[from
]);
2015 from
+= options
[from
];
2017 /* FIXME When match < 0, shouldn't there be some error,
2018 or at least indication to the user that there was a
2025 /* Copy the arguments, in order of decreasing priority, to NEW. */
2027 while (incoming_used
< argc
)
2030 int best_priority
= -9999;
2032 /* Find the highest priority remaining option.
2033 If several have equal priority, take the first of them. */
2034 for (from
= 1; from
< argc
; from
++)
2036 if (argv
[from
] != 0 && priority
[from
] > best_priority
)
2038 best_priority
= priority
[from
];
2041 /* Skip option arguments--they are tied to the options. */
2042 if (options
[from
] > 0)
2043 from
+= options
[from
];
2049 /* Copy the highest priority remaining option, with its args, to NEW.
2050 Unless it is a duplicate of the previous one. */
2051 if (! (options
[best
] == 0
2052 && ! strcmp (new[to
- 1], argv
[best
])))
2054 new[to
++] = argv
[best
];
2055 for (i
= 0; i
< options
[best
]; i
++)
2056 new[to
++] = argv
[best
+ i
+ 1];
2059 incoming_used
+= 1 + (options
[best
] > 0 ? options
[best
] : 0);
2061 /* Clear out this option in ARGV. */
2063 for (i
= 0; i
< options
[best
]; i
++)
2064 argv
[best
+ i
+ 1] = 0;
2067 /* If duplicate options were deleted, fill up extra space with null ptrs. */
2071 bcopy (new, argv
, sizeof (char *) * argc
);
2078 DEFUN ("kill-emacs", Fkill_emacs
, Skill_emacs
, 0, 1, "P",
2079 doc
: /* Exit the Emacs job and kill it.
2080 If ARG is an integer, return ARG as the exit program code.
2081 If ARG is a string, stuff it as keyboard input.
2083 The value of `kill-emacs-hook', if not void,
2084 is a list of functions (of no args),
2085 all of which are called before Emacs is actually killed. */)
2089 struct gcpro gcpro1
;
2096 if (!NILP (Vrun_hooks
) && !noninteractive
)
2097 call1 (Vrun_hooks
, intern ("kill-emacs-hook"));
2101 /* Is it really necessary to do this deassign
2102 when we are going to exit anyway? */
2107 shut_down_emacs (0, 0, STRINGP (arg
) ? arg
: Qnil
);
2109 /* If we have an auto-save list file,
2110 kill it because we are exiting Emacs deliberately (not crashing).
2111 Do it after shut_down_emacs, which does an auto-save. */
2112 if (STRINGP (Vauto_save_list_file_name
))
2113 unlink (SDATA (Vauto_save_list_file_name
));
2115 exit (INTEGERP (arg
) ? XINT (arg
) : EXIT_SUCCESS
);
2121 /* Perform an orderly shutdown of Emacs. Autosave any modified
2122 buffers, kill any child processes, clean up the terminal modes (if
2123 we're in the foreground), and other stuff like that. Don't perform
2124 any redisplay; this may be called when Emacs is shutting down in
2125 the background, or after its X connection has died.
2127 If SIG is a signal number, print a message for it.
2129 This is called by fatal signal handlers, X protocol error handlers,
2133 shut_down_emacs (sig
, no_x
, stuff
)
2137 /* Prevent running of hooks from now on. */
2140 /* Don't update display from now on. */
2141 Vinhibit_redisplay
= Qt
;
2143 /* If we are controlling the terminal, reset terminal modes. */
2144 #ifdef EMACS_HAVE_TTY_PGRP
2146 int pgrp
= EMACS_GETPGRP (0);
2149 if (EMACS_GET_TTY_PGRP (0, &tpgrp
) != -1
2152 reset_all_sys_modes ();
2153 if (sig
&& sig
!= SIGTERM
)
2154 fprintf (stderr
, "Fatal error (%d)", sig
);
2159 reset_all_sys_modes ();
2162 stuff_buffered_input (stuff
);
2165 inhibit_sentinels
= 1;
2167 kill_buffer_processes (Qnil
);
2168 Fdo_auto_save (Qt
, Qnil
);
2170 #ifdef CLASH_DETECTION
2171 unlock_all_files ();
2175 kill_vms_processes ();
2178 #if 0 /* This triggers a bug in XCloseDisplay and is not needed. */
2179 #ifdef HAVE_X_WINDOWS
2180 /* It's not safe to call intern here. Maybe we are crashing. */
2181 if (!noninteractive
&& SYMBOLP (Vinitial_window_system
)
2182 && SCHARS (SYMBOL_NAME (Vinitial_window_system
)) == 1
2183 && SREF (SYMBOL_NAME (Vinitial_window_system
), 0) == 'x'
2185 Fx_close_current_connection ();
2186 #endif /* HAVE_X_WINDOWS */
2190 /* There is a tendency for a SIGIO signal to arrive within exit,
2191 and cause a SIGHUP because the input descriptor is already closed. */
2193 signal (SIGIO
, SIG_IGN
);
2200 /* Do this only if terminating normally, we want glyph matrices
2201 etc. in a core dump. */
2202 if (sig
== 0 || sig
== SIGTERM
)
2204 check_glyph_memory ();
2205 check_message_stack ();
2213 ns_term_shutdown (sig
);
2223 DEFUN ("dump-emacs-data", Fdump_emacs_data
, Sdump_emacs_data
, 1, 1, 0,
2224 doc
: /* Dump current state of Emacs into data file FILENAME.
2225 This function exists on systems that use HAVE_SHM. */)
2227 Lisp_Object filename
;
2229 extern char my_edata
[];
2233 CHECK_STRING (filename
);
2234 filename
= Fexpand_file_name (filename
, Qnil
);
2237 Vpurify_flag
= Qnil
;
2240 /* Tell malloc where start of impure now is. */
2241 /* Also arrange for warnings when nearly out of space. */
2242 #ifndef SYSTEM_MALLOC
2243 memory_warnings (my_edata
, malloc_warning
);
2245 map_out_data (SDATA (filename
));
2252 #else /* not HAVE_SHM */
2254 DEFUN ("dump-emacs", Fdump_emacs
, Sdump_emacs
, 2, 2, 0,
2255 doc
: /* Dump current state of Emacs into executable file FILENAME.
2256 Take symbols from SYMFILE (presumably the file you executed to run Emacs).
2257 This is used in the file `loadup.el' when building Emacs.
2259 You must run Emacs in batch mode in order to dump it. */)
2261 Lisp_Object filename
, symfile
;
2263 extern char my_edata
[];
2266 int count
= SPECPDL_INDEX ();
2270 if (! noninteractive
)
2271 error ("Dumping Emacs works only in batch mode");
2274 if (heap_bss_diff
> MAX_HEAP_BSS_DIFF
)
2276 fprintf (stderr
, "**************************************************\n");
2277 fprintf (stderr
, "Warning: Your system has a gap between BSS and the\n");
2278 fprintf (stderr
, "heap (%lu bytes). This usually means that exec-shield\n",
2280 fprintf (stderr
, "or something similar is in effect. The dump may\n");
2281 fprintf (stderr
, "fail because of this. See the section about\n");
2282 fprintf (stderr
, "exec-shield in etc/PROBLEMS for more information.\n");
2283 fprintf (stderr
, "**************************************************\n");
2285 #endif /* GNU_LINUX */
2287 /* Bind `command-line-processed' to nil before dumping,
2288 so that the dumped Emacs will process its command line
2289 and set up to work with X windows if appropriate. */
2290 symbol
= intern ("command-line-processed");
2291 specbind (symbol
, Qnil
);
2293 CHECK_STRING (filename
);
2294 filename
= Fexpand_file_name (filename
, Qnil
);
2295 if (!NILP (symfile
))
2297 CHECK_STRING (symfile
);
2298 if (SCHARS (symfile
))
2299 symfile
= Fexpand_file_name (symfile
, Qnil
);
2303 Vpurify_flag
= Qnil
;
2306 set_time_zone_rule (dump_tz
);
2307 #ifndef LOCALTIME_CACHE
2308 /* Force a tz reload, since set_time_zone_rule doesn't. */
2315 mapout_data (SDATA (filename
));
2317 /* Tell malloc where start of impure now is. */
2318 /* Also arrange for warnings when nearly out of space. */
2319 #ifndef SYSTEM_MALLOC
2321 /* On Windows, this was done before dumping, and that once suffices.
2322 Meanwhile, my_edata is not valid on Windows. */
2323 memory_warnings (my_edata
, malloc_warning
);
2324 #endif /* not WINDOWSNT */
2326 #if !defined (SYSTEM_MALLOC) && defined (HAVE_GTK_AND_PTHREAD) && !defined SYNC_INPUT
2327 /* Pthread may call malloc before main, and then we will get an endless
2328 loop, because pthread_self (see alloc.c) calls malloc the first time
2329 it is called on some systems. */
2330 reset_malloc_hooks ();
2332 #ifdef DOUG_LEA_MALLOC
2333 malloc_state_ptr
= malloc_get_state ();
2336 #ifdef USE_MMAP_FOR_BUFFERS
2339 unexec (SDATA (filename
),
2340 !NILP (symfile
) ? SDATA (symfile
) : 0, my_edata
, 0, 0);
2341 #ifdef USE_MMAP_FOR_BUFFERS
2344 #ifdef DOUG_LEA_MALLOC
2345 free (malloc_state_ptr
);
2347 #endif /* not VMS */
2351 return unbind_to (count
, Qnil
);
2354 #endif /* not HAVE_SHM */
2356 #endif /* not CANNOT_DUMP */
2359 /* Recover from setlocale (LC_ALL, ""). */
2363 /* The Emacs Lisp reader needs LC_NUMERIC to be "C",
2364 so that numbers are read and printed properly for Emacs Lisp. */
2365 setlocale (LC_NUMERIC
, "C");
2368 /* Set system locale CATEGORY, with previous locale *PLOCALE, to
2371 synchronize_locale (category
, plocale
, desired_locale
)
2373 Lisp_Object
*plocale
;
2374 Lisp_Object desired_locale
;
2376 if (! EQ (*plocale
, desired_locale
))
2378 *plocale
= desired_locale
;
2379 setlocale (category
, (STRINGP (desired_locale
)
2380 ? (char *) SDATA (desired_locale
)
2385 /* Set system time locale to match Vsystem_time_locale, if possible. */
2387 synchronize_system_time_locale ()
2389 synchronize_locale (LC_TIME
, &Vprevious_system_time_locale
,
2390 Vsystem_time_locale
);
2393 /* Set system messages locale to match Vsystem_messages_locale, if
2396 synchronize_system_messages_locale ()
2399 synchronize_locale (LC_MESSAGES
, &Vprevious_system_messages_locale
,
2400 Vsystem_messages_locale
);
2403 #endif /* HAVE_SETLOCALE */
2410 decode_env_path (evarname
, defalt
)
2411 char *evarname
, *defalt
;
2413 register char *path
, *p
;
2414 Lisp_Object lpath
, element
, tem
;
2416 /* It's okay to use getenv here, because this function is only used
2417 to initialize variables when Emacs starts up, and isn't called
2420 path
= (char *) getenv (evarname
);
2426 /* Ensure values from the environment use the proper directory separator. */
2429 p
= alloca (strlen (path
) + 1);
2433 if ('/' == DIRECTORY_SEP
)
2434 dostounix_filename (path
);
2436 unixtodos_filename (path
);
2442 p
= index (path
, SEPCHAR
);
2443 if (!p
) p
= path
+ strlen (path
);
2444 element
= (p
- path
? make_string (path
, p
- path
)
2445 : build_string ("."));
2447 /* Add /: to the front of the name
2448 if it would otherwise be treated as magic. */
2449 tem
= Ffind_file_name_handler (element
, Qt
);
2451 /* However, if the handler says "I'm safe",
2452 don't bother adding /:. */
2456 prop
= Fget (tem
, intern ("safe-magic"));
2462 element
= concat2 (build_string ("/:"), element
);
2464 lpath
= Fcons (element
, lpath
);
2470 return Fnreverse (lpath
);
2476 Qfile_name_handler_alist
= intern ("file-name-handler-alist");
2477 staticpro (&Qfile_name_handler_alist
);
2481 defsubr (&Sdump_emacs_data
);
2483 defsubr (&Sdump_emacs
);
2487 defsubr (&Skill_emacs
);
2489 defsubr (&Sinvocation_name
);
2490 defsubr (&Sinvocation_directory
);
2492 DEFVAR_LISP ("command-line-args", &Vcommand_line_args
,
2493 doc
: /* Args passed by shell to Emacs, as a list of strings.
2494 Many arguments are deleted from the list as they are processed. */);
2496 DEFVAR_LISP ("system-type", &Vsystem_type
,
2497 doc
: /* Value is symbol indicating type of operating system you are using.
2499 `gnu' compiled for a GNU Hurd system.
2500 `gnu/linux' compiled for a GNU/Linux system.
2501 `darwin' compiled for Darwin (GNU-Darwin, Mac OS X, ...).
2502 `ms-dos' compiled as an MS-DOS application.
2503 `windows-nt' compiled as a native W32 application.
2504 `cygwin' compiled using the Cygwin library.
2505 `vax-vms' compiled for a (Open)VMS system.
2506 Anything else indicates some sort of Unix system. */);
2507 Vsystem_type
= intern (SYSTEM_TYPE
);
2509 DEFVAR_LISP ("system-configuration", &Vsystem_configuration
,
2510 doc
: /* Value is string indicating configuration Emacs was built for.
2511 On MS-Windows, the value reflects the OS flavor and version on which
2512 Emacs is running. */);
2513 Vsystem_configuration
= build_string (EMACS_CONFIGURATION
);
2515 DEFVAR_LISP ("system-configuration-options", &Vsystem_configuration_options
,
2516 doc
: /* String containing the configuration options Emacs was built with. */);
2517 Vsystem_configuration_options
= build_string (EMACS_CONFIG_OPTIONS
);
2519 DEFVAR_BOOL ("noninteractive", &noninteractive1
,
2520 doc
: /* Non-nil means Emacs is running without interactive terminal. */);
2522 DEFVAR_LISP ("kill-emacs-hook", &Vkill_emacs_hook
,
2523 doc
: /* Hook to be run when `kill-emacs' is called.
2524 Since `kill-emacs' may be invoked when the terminal is disconnected (or
2525 in other similar situations), functions placed on this hook should not
2526 expect to be able to interact with the user. To ask for confirmation,
2527 see `kill-emacs-query-functions' instead.
2529 The hook is not run in batch mode, i.e., if `noninteractive' is non-nil. */);
2530 Vkill_emacs_hook
= Qnil
;
2532 DEFVAR_INT ("emacs-priority", &emacs_priority
,
2533 doc
: /* Priority for Emacs to run at.
2534 This value is effective only if set before Emacs is dumped,
2535 and only if the Emacs executable is installed with setuid to permit
2536 it to change priority. (Emacs sets its uid back to the real uid.)
2537 Currently, you need to define SET_EMACS_PRIORITY in `config.h'
2538 before you compile Emacs, to enable the code for this feature. */);
2541 DEFVAR_LISP ("path-separator", &Vpath_separator
,
2542 doc
: /* String containing the character that separates directories in
2543 search paths, such as PATH and other similar environment variables. */);
2546 Vpath_separator
= make_string (&c
, 1);
2549 DEFVAR_LISP ("invocation-name", &Vinvocation_name
,
2550 doc
: /* The program name that was used to run Emacs.
2551 Any directory names are omitted. */);
2553 DEFVAR_LISP ("invocation-directory", &Vinvocation_directory
,
2554 doc
: /* The directory in which the Emacs executable was found, to run it.
2555 The value is nil if that directory's name is not known. */);
2557 DEFVAR_LISP ("installation-directory", &Vinstallation_directory
,
2558 doc
: /* A directory within which to look for the `lib-src' and `etc' directories.
2559 This is non-nil when we can't find those directories in their standard
2560 installed locations, but we can find them near where the Emacs executable
2562 Vinstallation_directory
= Qnil
;
2564 DEFVAR_LISP ("system-messages-locale", &Vsystem_messages_locale
,
2565 doc
: /* System locale for messages. */);
2566 Vsystem_messages_locale
= Qnil
;
2568 DEFVAR_LISP ("previous-system-messages-locale",
2569 &Vprevious_system_messages_locale
,
2570 doc
: /* Most recently used system locale for messages. */);
2571 Vprevious_system_messages_locale
= Qnil
;
2573 DEFVAR_LISP ("system-time-locale", &Vsystem_time_locale
,
2574 doc
: /* System locale for time. */);
2575 Vsystem_time_locale
= Qnil
;
2577 DEFVAR_LISP ("previous-system-time-locale", &Vprevious_system_time_locale
,
2578 doc
: /* Most recently used system locale for time. */);
2579 Vprevious_system_time_locale
= Qnil
;
2582 /* arch-tag: 7bfd356a-c720-4612-8ab6-aa4222931c2e
2583 (do not change this comment) */