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, or (at your option)
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; see the file COPYING. If not, write to
20 the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
21 Boston, MA 02110-1301, USA. */
29 #include <sys/types.h>
41 #include <sys/ioctl.h>
46 #include <windows.h> /* just for w32.h */
48 #include "w32heap.h" /* for prototype of sbrk */
53 #include "intervals.h"
58 #include "blockinput.h"
59 #include "syssignal.h"
62 #include "termhooks.h"
72 #include <sys/resource.h>
75 #ifdef HAVE_PERSONALITY_LINUX32
76 #include <sys/personality.h>
84 #if !defined (USG) || defined (BSD_PGRPS)
86 #define setpgrp setpgid
90 extern void malloc_warning
P_ ((char *));
91 extern void set_time_zone_rule
P_ ((char *));
93 extern char *index
P_ ((const char *, int));
96 /* Make these values available in GDB, which doesn't see macros. */
104 int gdb_use_union
= 0;
106 int gdb_use_union
= 1;
108 EMACS_INT gdb_valbits
= VALBITS
;
109 EMACS_INT gdb_gctypebits
= GCTYPEBITS
;
111 EMACS_INT gdb_data_seg_bits
= DATA_SEG_BITS
;
113 EMACS_INT gdb_data_seg_bits
= 0;
115 EMACS_INT PVEC_FLAG
= PSEUDOVECTOR_FLAG
;
116 EMACS_INT gdb_array_mark_flag
= ARRAY_MARK_FLAG
;
117 /* GDB might say "No enum type named pvec_type" if we don't have at
118 least one symbol with that type, and then xbacktrace could fail. */
119 enum pvec_type gdb_pvec_type
= PVEC_TYPE_MASK
;
121 /* Command line args from shell, as list of strings. */
122 Lisp_Object Vcommand_line_args
;
124 /* The name under which Emacs was invoked, with any leading directory
126 Lisp_Object Vinvocation_name
;
128 /* The directory name from which Emacs was invoked. */
129 Lisp_Object Vinvocation_directory
;
131 /* The directory name in which to find subdirs such as lisp and etc.
132 nil means get them only from PATH_LOADSEARCH. */
133 Lisp_Object Vinstallation_directory
;
135 /* Hook run by `kill-emacs' before it does really anything. */
136 Lisp_Object Vkill_emacs_hook
;
138 /* Empty lisp strings. To avoid having to build any others. */
139 Lisp_Object empty_unibyte_string
, empty_multibyte_string
;
141 /* Search path separator. */
142 Lisp_Object Vpath_separator
;
144 /* Set nonzero after Emacs has started up the first time.
145 Prevents reinitialization of the Lisp world and keymaps
146 on subsequent starts. */
149 #ifdef DOUG_LEA_MALLOC
150 /* Preserves a pointer to the memory allocated that copies that
151 static data inside glibc's malloc. */
152 void *malloc_state_ptr
;
153 /* From glibc, a routine that returns a copy of the malloc internal state. */
154 extern void *malloc_get_state ();
155 /* From glibc, a routine that overwrites the malloc internal state. */
156 extern int malloc_set_state ();
157 /* Non-zero if the MALLOC_CHECK_ enviroment variable was set while
158 dumping. Used to work around a bug in glibc's malloc. */
159 int malloc_using_checking
;
162 /* Variable whose value is symbol giving operating system type. */
163 Lisp_Object Vsystem_type
;
165 /* Variable whose value is string giving configuration built for. */
166 Lisp_Object Vsystem_configuration
;
168 /* Variable whose value is string giving configuration options,
169 for use when reporting bugs. */
170 Lisp_Object Vsystem_configuration_options
;
172 Lisp_Object Qfile_name_handler_alist
;
174 /* Current and previous system locales for messages and time. */
175 Lisp_Object Vsystem_messages_locale
;
176 Lisp_Object Vprevious_system_messages_locale
;
177 Lisp_Object Vsystem_time_locale
;
178 Lisp_Object Vprevious_system_time_locale
;
180 /* If non-zero, emacs should not attempt to use a window-specific code,
181 but instead should use the virtual terminal under which it was started. */
182 int inhibit_window_system
;
184 /* If nonzero, set Emacs to run at this priority. This is also used
185 in child_setup and sys_suspend to make sure subshells run at normal
186 priority; those functions have their own extern declaration. */
187 EMACS_INT emacs_priority
;
189 /* If non-zero, a filter or a sentinel is running. Tested to save the match
190 data on the first attempt to change it inside asynchronous code. */
191 int running_asynch_code
;
195 extern int inherited_pgroup
;
198 #ifdef HAVE_X_WINDOWS
199 /* If non-zero, -d was specified, meaning we're using some window system. */
203 /* An address near the bottom of the stack.
204 Tells GC how to save a copy of the stack. */
207 /* The address where the heap starts (from the first sbrk (0) call). */
208 static void *my_heap_start
;
210 /* The gap between BSS end and heap start as far as we can tell. */
211 static unsigned long heap_bss_diff
;
213 /* If the gap between BSS end and heap start is larger than this we try to
214 work around it, and if that fails, output a warning in dump-emacs. */
215 #define MAX_HEAP_BSS_DIFF (1024*1024)
218 #ifdef HAVE_WINDOW_SYSTEM
219 extern Lisp_Object Vinitial_window_system
;
220 #endif /* HAVE_WINDOW_SYSTEM */
222 extern Lisp_Object Vauto_save_list_file_name
;
224 extern Lisp_Object Vinhibit_redisplay
;
226 #ifdef USG_SHARED_LIBRARIES
227 /* If nonzero, this is the place to put the end of the writable segment
230 unsigned int bss_end
= 0;
233 /* Nonzero means running Emacs without interactive terminal. */
237 /* Value of Lisp variable `noninteractive'.
238 Normally same as C variable `noninteractive'
239 but nothing terrible happens if user sets this one. */
243 /* Save argv and argc. */
247 static void sort_args ();
248 void syms_of_emacs ();
250 /* MSVC needs each string be shorter than 2048 bytes, so the usage
251 strings below are split to not overflow this limit. */
253 Usage: %s [OPTION-OR-FILENAME]...\n\
255 Run Emacs, the extensible, customizable, self-documenting real-time\n\
256 display editor. The recommended way to start Emacs for normal editing\n\
257 is with no options at all.\n\
259 Run M-x info RET m emacs RET m emacs invocation RET inside Emacs to\n\
260 read the main documentation for these command-line arguments.\n\
262 Initialization options:\n\
264 --batch do not do interactive display; implies -q\n\
265 --debug-init enable Emacs Lisp debugger for init file\n\
266 --disable-font-backend do not use font backend (only if compiled)\n\
267 --display, -d DISPLAY use X server DISPLAY\n\
268 --multibyte, --no-unibyte inhibit the effect of EMACS_UNIBYTE\n\
269 --no-desktop do not load a saved desktop\n\
270 --no-init-file, -q load neither ~/.emacs nor default.el\n\
271 --no-shared-memory, -nl do not use shared memory\n\
272 --no-site-file do not load site-start.el\n\
273 --no-splash do not display a splash screen on startup\n\
274 --no-window-system, -nw do not communicate with X, ignoring $DISPLAY\n\
275 --quick, -Q equivalent to -q --no-site-file --no-splash\n\
276 --script FILE run FILE as an Emacs Lisp script\n\
277 --terminal, -t DEVICE use DEVICE for terminal I/O\n\
278 --unibyte, --no-multibyte run Emacs in unibyte mode\n\
279 --user, -u USER load ~USER/.emacs instead of your own\n\
285 FILE visit FILE using find-file\n\
286 +LINE go to line LINE in next FILE\n\
287 +LINE:COLUMN go to line LINE, column COLUMN, in next FILE\n\
288 --directory, -L DIR add DIR to variable load-path\n\
289 --eval EXPR evaluate Emacs Lisp expression EXPR\n\
290 --execute EXPR evaluate Emacs Lisp expression EXPR\n\
291 --file FILE visit FILE using find-file\n\
292 --find-file FILE visit FILE using find-file\n\
293 --funcall, -f FUNC call Emacs Lisp function FUNC with no arguments\n\
294 --insert FILE insert contents of FILE into current buffer\n\
295 --kill exit without asking for confirmation\n\
296 --load, -l FILE load Emacs Lisp FILE using the load function\n\
297 --visit FILE visit FILE using find-file\n\
303 --background-color, -bg COLOR window background color\n\
304 --basic-display, -D disable many display features;\n\
305 used for debugging Emacs\n\
306 --border-color, -bd COLOR main border color\n\
307 --border-width, -bw WIDTH width of main border\n\
308 --color, --color=MODE override color mode for character terminals;\n\
309 MODE defaults to `auto', and can also\n\
310 be `never', `auto', `always',\n\
311 or a mode name like `ansi8'\n\
312 --cursor-color, -cr COLOR color of the Emacs cursor indicating point\n\
313 --font, -fn FONT default font; must be fixed-width\n\
314 --foreground-color, -fg COLOR window foreground color\n\
315 --fullheight, -fh make the first frame high as the screen\n\
316 --fullscreen, -fs make first frame fullscreen\n\
317 --fullwidth, -fw make the first frame wide as the screen\n\
318 --geometry, -g GEOMETRY window geometry\n\
319 --no-bitmap-icon, -nbi do not use picture of gnu for Emacs icon\n\
320 --iconic start Emacs in iconified state\n\
321 --internal-border, -ib WIDTH width between text and main border\n\
322 --line-spacing, -lsp PIXELS additional space to put between lines\n\
323 --mouse-color, -ms COLOR mouse cursor color in Emacs window\n\
324 --name NAME title for initial Emacs frame\n\
325 --no-blinking-cursor, -nbc disable blinking cursor\n\
326 --reverse-video, -r, -rv switch foreground and background\n\
327 --title, -T TITLE title for initial Emacs frame\n\
328 --vertical-scroll-bars, -vb enable vertical scroll bars\n\
329 --xrm XRESOURCES set additional X resources\n\
330 --parent-id XID set parent window\n\
331 --help display this help and exit\n\
332 --version output version information and exit\n\
336 You can generally also specify long option names with a single -; for\n\
337 example, -batch as well as --batch. You can use any unambiguous\n\
338 abbreviation for a --option.\n\
340 Various environment variables and window system resources also affect\n\
341 Emacs' operation. See the main documentation.\n\
343 Report bugs to %s. First, please see the Bugs\n\
344 section of the Emacs manual or the file BUGS.\n"
347 /* Signal code for the fatal signal that was received. */
348 int fatal_error_code
;
350 /* Nonzero if handling a fatal error already. */
351 int fatal_error_in_progress
;
353 /* If non-null, call this function from fatal_error_signal before
354 committing suicide. */
356 void (*fatal_error_signal_hook
) P_ ((void));
358 #ifdef FORWARD_SIGNAL_TO_MAIN_THREAD
359 /* When compiled with GTK and running under Gnome, or Carbon under Mac
360 OS X, multiple threads may be created. Keep track of our main
361 thread to make sure signals are delivered to it (see syssignal.h). */
363 pthread_t main_thread
;
367 /* Handle bus errors, invalid instruction, etc. */
369 fatal_error_signal (sig
)
372 SIGNAL_THREAD_CHECK (sig
);
373 fatal_error_code
= sig
;
374 signal (sig
, SIG_DFL
);
376 TOTALLY_UNBLOCK_INPUT
;
378 /* If fatal error occurs in code below, avoid infinite recursion. */
379 if (! fatal_error_in_progress
)
381 fatal_error_in_progress
= 1;
383 shut_down_emacs (sig
, 0, Qnil
);
387 LIB$
STOP (SS$_ABORT
);
389 /* Signal the same code; this time it will really be fatal.
390 Remember that since we're in a signal handler, the signal we're
391 going to send is probably blocked, so we have to unblock it if we
392 want to really receive it. */
394 sigunblock (sigmask (fatal_error_code
));
397 if (fatal_error_signal_hook
)
398 fatal_error_signal_hook ();
400 kill (getpid (), fatal_error_code
);
406 /* Handler for SIGDANGER. */
408 memory_warning_signal (sig
)
411 signal (sig
, memory_warning_signal
);
412 SIGNAL_THREAD_CHECK (sig
);
414 malloc_warning ("Operating system warns that virtual memory is running low.\n");
416 /* It might be unsafe to call do_auto_save now. */
417 force_auto_save_soon ();
421 /* We define abort, rather than using it from the library,
422 so that GDB can return from a breakpoint here.
423 MSDOS has its own definition in msdos.c. */
425 #if ! defined (DOS_NT) && ! defined (NO_ABORT)
430 kill (getpid (), SIGABRT
);
431 /* This shouldn't be executed, but it prevents a warning. */
437 /* Code for dealing with Lisp access to the Unix command line. */
440 init_cmdargs (argc
, argv
, skip_args
)
446 Lisp_Object name
, dir
, tem
;
447 int count
= SPECPDL_INDEX ();
448 Lisp_Object raw_name
;
453 raw_name
= build_string (argv
[0]);
455 /* Add /: to the front of the name
456 if it would otherwise be treated as magic. */
457 tem
= Ffind_file_name_handler (raw_name
, Qt
);
459 raw_name
= concat2 (build_string ("/:"), raw_name
);
461 Vinvocation_name
= Ffile_name_nondirectory (raw_name
);
462 Vinvocation_directory
= Ffile_name_directory (raw_name
);
464 /* If we got no directory in argv[0], search PATH to find where
465 Emacs actually came from. */
466 if (NILP (Vinvocation_directory
))
469 int yes
= openp (Vexec_path
, Vinvocation_name
,
470 Vexec_suffixes
, &found
, make_number (X_OK
));
473 /* Add /: to the front of the name
474 if it would otherwise be treated as magic. */
475 tem
= Ffind_file_name_handler (found
, Qt
);
477 found
= concat2 (build_string ("/:"), found
);
478 Vinvocation_directory
= Ffile_name_directory (found
);
482 if (!NILP (Vinvocation_directory
)
483 && NILP (Ffile_name_absolute_p (Vinvocation_directory
)))
484 /* Emacs was started with relative path, like ./emacs.
486 Vinvocation_directory
= Fexpand_file_name (Vinvocation_directory
, Qnil
);
488 Vinstallation_directory
= Qnil
;
490 if (!NILP (Vinvocation_directory
))
492 dir
= Vinvocation_directory
;
493 name
= Fexpand_file_name (Vinvocation_name
, dir
);
496 Lisp_Object tem
, lib_src_exists
;
497 Lisp_Object etc_exists
, info_exists
;
499 /* See if dir contains subdirs for use by Emacs.
500 Check for the ones that would exist in a build directory,
501 not including lisp and info. */
502 tem
= Fexpand_file_name (build_string ("lib-src"), dir
);
503 lib_src_exists
= Ffile_exists_p (tem
);
506 /* MSDOS installations frequently remove lib-src, but we still
507 must set installation-directory, or else info won't find
508 its files (it uses the value of installation-directory). */
509 tem
= Fexpand_file_name (build_string ("info"), dir
);
510 info_exists
= Ffile_exists_p (tem
);
515 if (!NILP (lib_src_exists
) || !NILP (info_exists
))
517 tem
= Fexpand_file_name (build_string ("etc"), dir
);
518 etc_exists
= Ffile_exists_p (tem
);
519 if (!NILP (etc_exists
))
521 Vinstallation_directory
522 = Ffile_name_as_directory (dir
);
527 /* See if dir's parent contains those subdirs. */
528 tem
= Fexpand_file_name (build_string ("../lib-src"), dir
);
529 lib_src_exists
= Ffile_exists_p (tem
);
533 /* See the MSDOS commentary above. */
534 tem
= Fexpand_file_name (build_string ("../info"), dir
);
535 info_exists
= Ffile_exists_p (tem
);
540 if (!NILP (lib_src_exists
) || !NILP (info_exists
))
542 tem
= Fexpand_file_name (build_string ("../etc"), dir
);
543 etc_exists
= Ffile_exists_p (tem
);
544 if (!NILP (etc_exists
))
546 tem
= Fexpand_file_name (build_string (".."), dir
);
547 Vinstallation_directory
548 = Ffile_name_as_directory (tem
);
553 /* If the Emacs executable is actually a link,
554 next try the dir that the link points into. */
555 tem
= Ffile_symlink_p (name
);
558 name
= Fexpand_file_name (tem
, dir
);
559 dir
= Ffile_name_directory (name
);
566 Vcommand_line_args
= Qnil
;
568 for (i
= argc
- 1; i
>= 0; i
--)
570 if (i
== 0 || i
> skip_args
)
571 /* For the moment, we keep arguments as is in unibyte strings.
572 They are decoded in the function command-line after we know
573 locale-coding-system. */
575 = Fcons (make_unibyte_string (argv
[i
], strlen (argv
[i
])),
579 unbind_to (count
, Qnil
);
582 DEFUN ("invocation-name", Finvocation_name
, Sinvocation_name
, 0, 0, 0,
583 doc
: /* Return the program name that was used to run Emacs.
584 Any directory names are omitted. */)
587 return Fcopy_sequence (Vinvocation_name
);
590 DEFUN ("invocation-directory", Finvocation_directory
, Sinvocation_directory
,
592 doc
: /* Return the directory name in which the Emacs executable was located. */)
595 return Fcopy_sequence (Vinvocation_directory
);
600 #ifdef LINK_CRTL_SHARE
601 #ifdef SHARABLE_LIB_BUG
602 extern noshare
char **environ
;
603 #endif /* SHARABLE_LIB_BUG */
604 #endif /* LINK_CRTL_SHARE */
608 /* A valid but unlikely value for the TZ environment value.
609 It is OK (though a bit slower) if the user actually chooses this value. */
610 static char dump_tz
[] = "UtC0";
613 #ifndef ORDINARY_LINK
614 /* We don't include crtbegin.o and crtend.o in the link,
615 so these functions and variables might be missed.
616 Provide dummy definitions to avoid error.
617 (We don't have any real constructors or destructors.) */
619 #ifndef GCC_CTORS_IN_LIBC
620 void __do_global_ctors ()
622 void __do_global_ctors_aux ()
624 void __do_global_dtors ()
626 /* GNU/Linux has a bug in its library; avoid an error. */
628 char * __CTOR_LIST__
[2] = { (char *) (-1), 0 };
630 char * __DTOR_LIST__
[2] = { (char *) (-1), 0 };
631 #endif /* GCC_CTORS_IN_LIBC */
634 #endif /* __GNUC__ */
635 #endif /* ORDINARY_LINK */
637 /* Test whether the next argument in ARGV matches SSTR or a prefix of
638 LSTR (at least MINLEN characters). If so, then if VALPTR is non-null
639 (the argument is supposed to have a value) store in *VALPTR either
640 the next argument or the portion of this one after the equal sign.
641 ARGV is read starting at position *SKIPPTR; this index is advanced
642 by the number of arguments used.
644 Too bad we can't just use getopt for all of this, but we don't have
645 enough information to do it right. */
648 argmatch (argv
, argc
, sstr
, lstr
, minlen
, valptr
, skipptr
)
661 /* Don't access argv[argc]; give up in advance. */
662 if (argc
<= *skipptr
+ 1)
665 arg
= argv
[*skipptr
+1];
668 if (strcmp (arg
, sstr
) == 0)
672 *valptr
= argv
[*skipptr
+2];
679 arglen
= (valptr
!= NULL
&& (p
= index (arg
, '=')) != NULL
680 ? p
- arg
: strlen (arg
));
681 if (lstr
== 0 || arglen
< minlen
|| strncmp (arg
, lstr
, arglen
) != 0)
683 else if (valptr
== NULL
)
694 else if (argv
[*skipptr
+2] != NULL
)
696 *valptr
= argv
[*skipptr
+2];
706 #ifdef DOUG_LEA_MALLOC
708 /* malloc can be invoked even before main (e.g. by the dynamic
709 linker), so the dumped malloc state must be restored as early as
710 possible using this special hook. */
713 malloc_initialize_hook ()
716 extern char **environ
;
721 if (!malloc_using_checking
)
722 /* Work around a bug in glibc's malloc. MALLOC_CHECK_ must be
723 ignored if the heap to be restored was constructed without
724 malloc checking. Can't use unsetenv, since that calls malloc. */
728 for (p
= environ
; p
&& *p
; p
++)
729 if (strncmp (*p
, "MALLOC_CHECK_=", 14) == 0)
738 malloc_set_state (malloc_state_ptr
);
739 #ifndef XMALLOC_OVERRUN_CHECK
740 free (malloc_state_ptr
);
745 if (my_heap_start
== 0)
746 my_heap_start
= sbrk (0);
747 malloc_using_checking
= getenv ("MALLOC_CHECK_") != NULL
;
751 void (*__malloc_initialize_hook
) () = malloc_initialize_hook
;
753 #endif /* DOUG_LEA_MALLOC */
756 #define REPORT_EMACS_BUG_ADDRESS "bug-gnu-emacs@gnu.org"
757 #define REPORT_EMACS_BUG_PRETEST_ADDRESS "emacs-pretest-bug@gnu.org"
759 /* This function is used to determine an address to which bug report should
763 bug_reporting_address ()
769 temp
= Fsymbol_value (intern ("emacs-version"));
771 /* When `emacs-version' is invalid, use normal address. */
773 return REPORT_EMACS_BUG_ADDRESS
;
775 string
= SDATA (temp
);
777 /* Count dots in `emacs-version'. */
785 /* When `emacs-version' has at least three dots, it is development or
786 pretest version of Emacs. */
787 return count
>= 3 ? REPORT_EMACS_BUG_PRETEST_ADDRESS
: REPORT_EMACS_BUG_ADDRESS
;
807 char stack_bottom_variable
;
808 int do_initial_setlocale
;
813 #ifdef HAVE_SETRLIMIT
820 extern Lisp_Object
*stack_base
;
826 extern char my_endbss
[];
827 extern char *my_endbss_static
;
829 if (my_heap_start
== 0)
830 my_heap_start
= sbrk (0);
832 heap_bss_diff
= (char *)my_heap_start
- max (my_endbss
, my_endbss_static
);
835 #ifdef LINUX_SBRK_BUG
839 #ifdef RUN_TIME_REMAP
841 run_time_remap (argv
[0]);
846 unexec_init_emacs_zone ();
849 sort_args (argc
, argv
);
851 while (argv
[argc
]) argc
++;
853 if (argmatch (argv
, argc
, "-version", "--version", 3, NULL
, &skip_args
)
854 /* We don't know the version number unless this is a dumped Emacs.
855 So ignore --version otherwise. */
858 Lisp_Object tem
, tem2
;
859 tem
= Fsymbol_value (intern ("emacs-version"));
860 tem2
= Fsymbol_value (intern ("emacs-copyright"));
863 fprintf (stderr
, "Invalid value of `emacs-version'\n");
868 fprintf (stderr
, "Invalid value of `emacs-copyright'\n");
873 printf ("GNU Emacs %s\n", SDATA (tem
));
874 printf ("%s\n", SDATA(tem2
));
875 printf ("GNU Emacs comes with ABSOLUTELY NO WARRANTY.\n");
876 printf ("You may redistribute copies of Emacs\n");
877 printf ("under the terms of the GNU General Public License.\n");
878 printf ("For more information about these matters, ");
879 printf ("see the file named COPYING.\n");
884 #ifdef HAVE_PERSONALITY_LINUX32
885 /* See if there is a gap between the end of BSS and the heap.
886 In that case, set personality and exec ourself again. */
888 && (strcmp (argv
[argc
-1], "dump") == 0
889 || strcmp (argv
[argc
-1], "bootstrap") == 0)
890 && heap_bss_diff
> MAX_HEAP_BSS_DIFF
)
892 if (! getenv ("EMACS_HEAP_EXEC"))
894 /* Set this so we only do this once. */
895 putenv("EMACS_HEAP_EXEC=true");
897 /* A flag to turn off address randomization which is introduced
898 in linux kernel shipped with fedora core 4 */
899 #define ADD_NO_RANDOMIZE 0x0040000
900 personality (PER_LINUX32
| ADD_NO_RANDOMIZE
);
901 #undef ADD_NO_RANDOMIZE
903 execvp (argv
[0], argv
);
905 /* If the exec fails, try to dump anyway. */
909 #endif /* HAVE_PERSONALITY_LINUX32 */
912 /* Map in shared memory, if we are using that. */
914 if (argmatch (argv
, argc
, "-nl", "--no-shared-memory", 6, NULL
, &skip_args
))
917 /* The shared memory was just restored, which clobbered this. */
923 /* The shared memory was just restored, which clobbered this. */
930 extern int malloc_cookie
;
931 /* This helps out unexnext.c. */
933 if (malloc_jumpstart (malloc_cookie
) != 0)
934 printf ("malloc jumpstart failed!\n");
939 /* Skip process serial number passed in the form -psn_x_y as
940 command-line argument. The WindowServer adds this option when
941 Emacs is invoked from the Finder or by the `open' command. In
942 these cases, the working directory becomes `/', so we change it
943 to the user's home directory. */
944 if (argc
> skip_args
+ 1 && strncmp (argv
[skip_args
+1], "-psn_", 5) == 0)
946 chdir (getenv ("HOME"));
952 /* If -map specified, map the data file in. */
955 if (argmatch (argv
, argc
, "-map", "--map-data", 3, &file
, &skip_args
))
959 #ifdef LINK_CRTL_SHARE
960 #ifdef SHARABLE_LIB_BUG
961 /* Bletcherous shared libraries! */
963 stdin
= fdopen (0, "r");
965 stdout
= fdopen (1, "w");
967 stderr
= fdopen (2, "w");
970 #endif /* SHARABLE_LIB_BUG */
971 #endif /* LINK_CRTL_SHARE */
974 #if defined (HAVE_SETRLIMIT) && defined (RLIMIT_STACK)
975 /* Extend the stack space available.
976 Don't do that if dumping, since some systems (e.g. DJGPP)
977 might define a smaller stack limit at that time. */
980 && (!noninteractive
|| initialized
)
982 && !getrlimit (RLIMIT_STACK
, &rlim
))
985 extern size_t re_max_failures
;
986 /* Approximate the amount regex.c needs per unit of re_max_failures. */
987 int ratio
= 20 * sizeof (char *);
988 /* Then add 33% to cover the size of the smaller stacks that regex.c
989 successively allocates and discards, on its way to the maximum. */
991 /* Add in some extra to cover
992 what we're likely to use for other reasons. */
993 newlim
= re_max_failures
* ratio
+ 200000;
995 /* NetBSD (at least NetBSD 1.2G and former) has a bug in its
996 stack allocation routine for new process that the allocation
997 fails if stack limit is not on page boundary. So, round up the
998 new limit to page boundary. */
999 newlim
= (newlim
+ getpagesize () - 1) / getpagesize () * getpagesize();
1001 if (newlim
> rlim
.rlim_max
)
1003 newlim
= rlim
.rlim_max
;
1004 /* Don't let regex.c overflow the stack we have. */
1005 re_max_failures
= (newlim
- 200000) / ratio
;
1007 if (rlim
.rlim_cur
< newlim
)
1008 rlim
.rlim_cur
= newlim
;
1010 setrlimit (RLIMIT_STACK
, &rlim
);
1012 #endif /* HAVE_SETRLIMIT and RLIMIT_STACK */
1014 /* Record (approximately) where the stack begins. */
1015 stack_bottom
= &stack_bottom_variable
;
1017 #ifdef USG_SHARED_LIBRARIES
1019 brk ((void *)bss_end
);
1024 #ifndef SYSTEM_MALLOC
1025 /* Arrange to get warning messages as memory fills up. */
1026 memory_warnings (0, malloc_warning
);
1028 /* Call malloc at least once, to run the initial __malloc_hook.
1029 Also call realloc and free for consistency. */
1030 free (realloc (malloc (4), 4));
1033 /* Arrange to disable interrupt input inside malloc etc. */
1034 uninterrupt_malloc ();
1035 # endif /* not SYNC_INPUT */
1036 #endif /* not SYSTEM_MALLOC */
1038 #ifdef FORWARD_SIGNAL_TO_MAIN_THREAD
1039 main_thread
= pthread_self ();
1040 #endif /* FORWARD_SIGNAL_TO_MAIN_THREAD */
1042 #if defined (MSDOS) || defined (WINDOWSNT)
1043 /* We do all file input/output as binary files. When we need to translate
1044 newlines, we do that manually. */
1046 #endif /* MSDOS || WINDOWSNT */
1050 if (!isatty (fileno (stdin
)))
1051 setmode (fileno (stdin
), O_BINARY
);
1052 if (!isatty (fileno (stdout
)))
1055 setmode (fileno (stdout
), O_BINARY
);
1057 #else /* not __DJGPP__ >= 2 */
1058 (stdin
)->_flag
&= ~_IOTEXT
;
1059 (stdout
)->_flag
&= ~_IOTEXT
;
1060 (stderr
)->_flag
&= ~_IOTEXT
;
1061 #endif /* not __DJGPP__ >= 2 */
1064 #ifdef SET_EMACS_PRIORITY
1066 nice (emacs_priority
);
1068 #endif /* SET_EMACS_PRIORITY */
1070 /* Skip initial setlocale if LC_ALL is "C", as it's not needed in that case.
1071 The build procedure uses this while dumping, to ensure that the
1072 dumped Emacs does not have its system locale tables initialized,
1073 as that might cause screwups when the dumped Emacs starts up. */
1075 char *lc_all
= getenv ("LC_ALL");
1076 do_initial_setlocale
= ! lc_all
|| strcmp (lc_all
, "C");
1079 /* Set locale now, so that initial error messages are localized properly.
1080 fixup_locale must wait until later, since it builds strings. */
1081 if (do_initial_setlocale
)
1082 setlocale (LC_ALL
, "");
1084 inhibit_window_system
= 0;
1086 /* Handle the -t switch, which specifies filename to use as terminal. */
1090 if (argmatch (argv
, argc
, "-t", "--terminal", 4, &term
, &skip_args
))
1095 result
= emacs_open (term
, O_RDWR
, 0);
1098 char *errstring
= strerror (errno
);
1099 fprintf (stderr
, "%s: %s: %s\n", argv
[0], term
, errstring
);
1105 fprintf (stderr
, "%s: %s: not a tty\n", argv
[0], term
);
1108 fprintf (stderr
, "Using %s\n", term
);
1109 #ifdef HAVE_WINDOW_SYSTEM
1110 inhibit_window_system
= 1; /* -t => -nw */
1117 /* Command line option --no-windows is deprecated and thus not mentioned
1118 in the manual and usage informations. */
1119 if (argmatch (argv
, argc
, "-nw", "--no-window-system", 6, NULL
, &skip_args
)
1120 || argmatch (argv
, argc
, "-nw", "--no-windows", 6, NULL
, &skip_args
))
1121 inhibit_window_system
= 1;
1123 /* Handle the -batch switch, which means don't do interactive display. */
1125 if (argmatch (argv
, argc
, "-batch", "--batch", 5, NULL
, &skip_args
))
1128 Vundo_outer_limit
= Qnil
;
1130 if (argmatch (argv
, argc
, "-script", "--script", 3, &junk
, &skip_args
))
1132 noninteractive
= 1; /* Set batch mode. */
1133 /* Convert --script to -scriptload, un-skip it, and sort again
1134 so that it will be handled in proper sequence. */
1135 /* FIXME broken for --script=FILE - is that supposed to work? */
1136 argv
[skip_args
- 1] = "-scriptload";
1138 sort_args (argc
, argv
);
1141 /* Handle the --help option, which gives a usage message. */
1142 if (argmatch (argv
, argc
, "-help", "--help", 3, NULL
, &skip_args
))
1144 printf (USAGE1
, argv
[0], USAGE2
);
1146 printf (USAGE4
, bug_reporting_address ());
1150 if (! noninteractive
)
1155 inherited_pgroup
= EMACS_GETPGRP (0);
1156 setpgrp (0, getpid ());
1159 #if defined (USG5) && defined (INTERRUPT_INPUT)
1163 #if defined (HAVE_GTK_AND_PTHREAD) && !defined (SYSTEM_MALLOC) && !defined (DOUG_LEA_MALLOC)
1165 extern void malloc_enable_thread
P_ ((void));
1167 malloc_enable_thread ();
1174 /* Don't catch SIGHUP if dumping. */
1181 sigblock (sigmask (SIGHUP
));
1182 /* In --batch mode, don't catch SIGHUP if already ignored.
1183 That makes nohup work. */
1184 if (! noninteractive
1185 || signal (SIGHUP
, SIG_IGN
) != SIG_IGN
)
1186 signal (SIGHUP
, fatal_error_signal
);
1187 sigunblock (sigmask (SIGHUP
));
1192 ! noninteractive
|| initialized
1198 /* Don't catch these signals in batch mode if dumping.
1199 On some machines, this sets static data that would make
1200 signal fail to work right when the dumped Emacs is run. */
1201 signal (SIGQUIT
, fatal_error_signal
);
1202 signal (SIGILL
, fatal_error_signal
);
1203 signal (SIGTRAP
, fatal_error_signal
);
1205 add_user_signal (SIGUSR1
, "sigusr1");
1208 add_user_signal (SIGUSR2
, "sigusr2");
1211 signal (SIGABRT
, fatal_error_signal
);
1214 signal (SIGHWE
, fatal_error_signal
);
1217 signal (SIGPRE
, fatal_error_signal
);
1220 signal (SIGORE
, fatal_error_signal
);
1223 signal (SIGUME
, fatal_error_signal
);
1226 signal (SIGDLK
, fatal_error_signal
);
1229 signal (SIGCPULIM
, fatal_error_signal
);
1232 /* This is missing on some systems - OS/2, for example. */
1233 signal (SIGIOT
, fatal_error_signal
);
1236 signal (SIGEMT
, fatal_error_signal
);
1238 signal (SIGFPE
, fatal_error_signal
);
1240 signal (SIGBUS
, fatal_error_signal
);
1242 signal (SIGSEGV
, fatal_error_signal
);
1244 signal (SIGSYS
, fatal_error_signal
);
1246 signal (SIGTERM
, fatal_error_signal
);
1248 signal (SIGXCPU
, fatal_error_signal
);
1251 signal (SIGXFSZ
, fatal_error_signal
);
1252 #endif /* SIGXFSZ */
1255 /* This just means available memory is getting low. */
1256 signal (SIGDANGER
, memory_warning_signal
);
1260 /* 20 is SIGCHLD, 21 is SIGTTIN, 22 is SIGTTOU. */
1261 signal (SIGXCPU
, fatal_error_signal
);
1263 signal (SIGIOINT
, fatal_error_signal
);
1265 signal (SIGGRANT
, fatal_error_signal
);
1266 signal (SIGRETRACT
, fatal_error_signal
);
1267 signal (SIGSOUND
, fatal_error_signal
);
1268 signal (SIGMSG
, fatal_error_signal
);
1272 noninteractive1
= noninteractive
;
1274 /* Perform basic initializations (not merely interning symbols). */
1281 init_character_once ();
1282 init_charset_once ();
1283 init_coding_once ();
1284 init_syntax_once (); /* Create standard syntax table. */
1285 init_category_once (); /* Create standard category table. */
1286 /* Must be done before init_buffer. */
1287 init_casetab_once ();
1288 init_buffer_once (); /* Create buffer table and some buffers. */
1289 init_minibuf_once (); /* Create list of minibuffers. */
1290 /* Must precede init_window_once. */
1292 /* Call syms_of_xfaces before init_window_once because that
1293 function creates Vterminal_frame. Termcap frames now use
1294 faces, and the face implementation uses some symbols as
1297 /* XXX syms_of_keyboard uses some symbols in keymap.c. It would
1298 be better to arrange things not to have this dependency. */
1300 /* Call syms_of_keyboard before init_window_once because
1301 keyboard sets up symbols that include some face names that
1302 the X support will want to use. This can happen when
1303 CANNOT_DUMP is defined. */
1304 syms_of_keyboard ();
1307 /* init_window_once calls make_terminal_frame which on Mac OS
1308 creates a full-fledge output_mac type frame. This does not
1309 work correctly before syms_of_textprop, syms_of_macfns,
1310 syms_of_ccl, syms_of_fontset, syms_of_xterm, syms_of_search,
1311 syms_of_frame, mac_term_init, and init_keyboard have already
1313 syms_of_textprop ();
1319 syms_of_macselect ();
1324 mac_term_init (build_string ("Mac"), NULL
, NULL
);
1327 /* Called before syms_of_fileio, because it sets up Qerror_condition. */
1330 /* Before syms_of_coding to initialize Vgc_cons_threshold. */
1332 /* Before syms_of_coding because it initializes Qcharsetp. */
1334 /* Before init_window_once, because it sets up the
1335 Vcoding_system_hash_table. */
1336 syms_of_coding (); /* This should be after syms_of_fileio. */
1338 init_window_once (); /* Init the window system. */
1339 init_fileio_once (); /* Must precede any path manipulation. */
1340 #ifdef HAVE_WINDOW_SYSTEM
1341 init_fringe_once (); /* Swap bitmaps if necessary. */
1342 #endif /* HAVE_WINDOW_SYSTEM */
1347 if (do_initial_setlocale
)
1350 Vsystem_messages_locale
= Vprevious_system_messages_locale
;
1351 Vsystem_time_locale
= Vprevious_system_time_locale
;
1356 #ifdef CLASH_DETECTION
1360 running_asynch_code
= 0;
1362 /* Handle --unibyte and the EMACS_UNIBYTE envvar,
1363 but not while dumping. */
1366 int inhibit_unibyte
= 0;
1368 /* --multibyte overrides EMACS_UNIBYTE. */
1369 if (argmatch (argv
, argc
, "-no-unibyte", "--no-unibyte", 4, NULL
, &skip_args
)
1370 || argmatch (argv
, argc
, "-multibyte", "--multibyte", 4, NULL
, &skip_args
)
1371 /* Ignore EMACS_UNIBYTE before dumping. */
1372 || (!initialized
&& noninteractive
))
1373 inhibit_unibyte
= 1;
1375 /* --unibyte requests that we set up to do everything with single-byte
1376 buffers and strings. We need to handle this before calling
1377 init_lread, init_editfns and other places that generate Lisp strings
1378 from text in the environment. */
1379 /* Actually this shouldn't be needed as of 20.4 in a generally
1380 unibyte environment. As handa says, environment values
1381 aren't now decoded; also existing buffers are now made
1382 unibyte during startup if .emacs sets unibyte. Tested with
1383 8-bit data in environment variables and /etc/passwd, setting
1384 unibyte and Latin-1 in .emacs. -- Dave Love */
1385 if (argmatch (argv
, argc
, "-unibyte", "--unibyte", 4, NULL
, &skip_args
)
1386 || argmatch (argv
, argc
, "-no-multibyte", "--no-multibyte", 4, NULL
, &skip_args
)
1387 || (getenv ("EMACS_UNIBYTE") && !inhibit_unibyte
))
1389 Lisp_Object old_log_max
;
1390 Lisp_Object symbol
, tail
;
1392 symbol
= intern ("default-enable-multibyte-characters");
1393 Fset (symbol
, Qnil
);
1397 /* Erase pre-dump messages in *Messages* now so no abort. */
1398 old_log_max
= Vmessage_log_max
;
1399 XSETFASTINT (Vmessage_log_max
, 0);
1400 message_dolog ("", 0, 1, 0);
1401 Vmessage_log_max
= old_log_max
;
1404 for (tail
= Vbuffer_alist
; CONSP (tail
);
1409 buffer
= Fcdr (XCAR (tail
));
1410 /* Make a multibyte buffer unibyte. */
1411 if (BUF_Z_BYTE (XBUFFER (buffer
)) > BUF_Z (XBUFFER (buffer
)))
1413 struct buffer
*current
= current_buffer
;
1415 set_buffer_temp (XBUFFER (buffer
));
1416 Fset_buffer_multibyte (Qnil
);
1417 set_buffer_temp (current
);
1424 = argmatch (argv
, argc
, "-nl", "--no-loadup", 6, NULL
, &skip_args
);
1426 #ifdef HAVE_X_WINDOWS
1427 /* Stupid kludge to catch command-line display spec. We can't
1428 handle this argument entirely in window system dependent code
1429 because we don't even know which window system dependent code
1430 to run until we've recognized this argument. */
1432 char *displayname
= 0;
1433 int count_before
= skip_args
;
1435 /* Skip any number of -d options, but only use the last one. */
1438 int count_before_this
= skip_args
;
1440 if (argmatch (argv
, argc
, "-d", "--display", 3, &displayname
, &skip_args
))
1442 else if (argmatch (argv
, argc
, "-display", 0, 3, &displayname
, &skip_args
))
1447 count_before
= count_before_this
;
1450 /* If we have the form --display=NAME,
1451 convert it into -d name.
1452 This requires inserting a new element into argv. */
1453 if (displayname
!= 0 && skip_args
- count_before
== 1)
1455 char **new = (char **) xmalloc (sizeof (char *) * (argc
+ 2));
1458 for (j
= 0; j
< count_before
+ 1; j
++)
1460 new[count_before
+ 1] = "-d";
1461 new[count_before
+ 2] = displayname
;
1462 for (j
= count_before
+ 2; j
<argc
; j
++)
1463 new[j
+ 1] = argv
[j
];
1467 /* Change --display to -d, when its arg is separate. */
1468 else if (displayname
!= 0 && skip_args
> count_before
1469 && argv
[count_before
+ 1][1] == '-')
1470 argv
[count_before
+ 1] = "-d";
1472 /* Don't actually discard this arg. */
1473 skip_args
= count_before
;
1477 /* argmatch must not be used after here,
1478 except when bulding temacs
1479 because the -d argument has not been skipped in skip_args. */
1482 /* Call early 'cause init_environment needs it. */
1484 /* Set defaults for several environment variables. */
1486 init_environment (argc
, argv
, skip_args
);
1493 /* Initialize environment from registry settings. */
1494 init_environment (argv
);
1495 init_ntproc (); /* must precede init_editfns. */
1498 #if defined (MAC_OSX) && defined (HAVE_CARBON)
1500 init_mac_osx_environment ();
1503 /* egetenv is a pretty low-level facility, which may get called in
1504 many circumstances; it seems flimsy to put off initializing it
1505 until calling init_callproc. */
1506 set_initial_environment ();
1507 /* AIX crashes are reported in system versions 3.2.3 and 3.2.4
1508 if this is not done. Do it after set_global_environment so that we
1509 don't pollute Vglobal_environment. */
1510 /* Setting LANG here will defeat the startup locale processing... */
1515 init_buffer (); /* Init default directory of main buffer. */
1517 init_callproc_1 (); /* Must precede init_cmdargs and init_sys_modes. */
1518 init_cmdargs (argc
, argv
, skip_args
); /* Must precede init_lread. */
1522 /* Erase any pre-dump messages in the message log, to avoid confusion. */
1523 Lisp_Object old_log_max
;
1524 old_log_max
= Vmessage_log_max
;
1525 XSETFASTINT (Vmessage_log_max
, 0);
1526 message_dolog ("", 0, 1, 0);
1527 Vmessage_log_max
= old_log_max
;
1530 init_callproc (); /* Must follow init_cmdargs but not init_sys_modes. */
1533 /* Intern the names of all standard functions and variables;
1534 define standard keys. */
1538 /* The basic levels of Lisp must come first. */
1539 /* And data must come first of all
1540 for the sake of symbols like error-message. */
1541 /* Called before init_window_once for Mac OS Classic. */
1548 syms_of_floatfns ();
1551 syms_of_bytecode ();
1553 syms_of_casefiddle ();
1555 syms_of_callproc ();
1556 syms_of_category ();
1558 syms_of_character ();
1560 #ifndef NO_DIR_LIBRARY
1562 #endif /* not NO_DIR_LIBRARY */
1567 #ifdef CLASH_DETECTION
1568 syms_of_filelock ();
1569 #endif /* CLASH_DETECTION */
1572 /* syms_of_keymap (); */
1580 syms_of_terminal ();
1586 syms_of_textprop ();
1587 syms_of_composite ();
1593 #endif /* WINDOWSNT */
1596 #ifdef HAVE_WINDOW_SYSTEM
1600 #endif /* HAVE_WINDOW_SYSTEM */
1601 #ifdef HAVE_X_WINDOWS
1611 #endif /* HAVE_X_WINDOWS */
1615 /* Called before init_window_once for Mac OS Classic. */
1623 syms_of_w32select ();
1626 #endif /* HAVE_NTGUI */
1628 #if defined (MAC_OSX) && defined (HAVE_CARBON)
1632 syms_of_macselect ();
1634 #endif /* MAC_OSX && HAVE_CARBON */
1637 syms_of_dbusbind ();
1638 #endif /* HAVE_DBUS */
1648 keys_of_casefiddle ();
1651 keys_of_keyboard ();
1658 /* Initialization that must be done even if the global variable
1659 initialized is non zero. */
1661 globals_of_w32fns ();
1662 globals_of_w32menu ();
1663 globals_of_w32select ();
1664 #endif /* HAVE_NTGUI */
1669 init_editfns (); /* init_process uses Voperating_system_release. */
1670 init_process (); /* init_display uses add_keyboard_wait_descriptor. */
1671 init_keyboard (); /* This too must precede init_sys_modes. */
1673 init_vmsproc (); /* And this too. */
1675 if (!noninteractive
)
1678 init_vms_input ();/* init_display calls get_tty_size, that needs this. */
1680 init_display (); /* Determine terminal type. Calls init_sys_modes. */
1684 #ifdef HAVE_WINDOW_SYSTEM
1687 #endif /* HAVE_WINDOW_SYSTEM */
1701 /* Handle -l loadup, args passed by Makefile. */
1702 if (argmatch (argv
, argc
, "-l", "--load", 3, &file
, &skip_args
))
1703 Vtop_level
= Fcons (intern ("load"),
1704 Fcons (build_string (file
), Qnil
));
1705 /* Unless next switch is -nl, load "loadup.el" first thing. */
1707 Vtop_level
= Fcons (intern ("load"),
1708 Fcons (build_string ("loadup.el"), Qnil
));
1715 /* If the execution TZ happens to be the same as the dump TZ,
1716 change it to some other value and then change it back,
1717 to force the underlying implementation to reload the TZ info.
1718 This is needed on implementations that load TZ info from files,
1719 since the TZ file contents may differ between dump and execution. */
1720 char *tz
= getenv ("TZ");
1721 if (tz
&& !strcmp (tz
, dump_tz
))
1731 /* Set up for profiling. This is known to work on FreeBSD,
1732 GNU/Linux and MinGW. It might work on some other systems too.
1733 Give it a try and tell us if it works on your system. To compile
1734 for profiling, add -pg to the switches your platform uses in
1735 CFLAGS and LDFLAGS. For example:
1736 `make CFLAGS="-pg -g -O -DPROFILING=1" LDFLAGS="-pg -g"'. */
1737 #if defined (__FreeBSD__) || defined (GNU_LINUX) || defined(__MINGW32__)
1741 extern void _mcleanup ();
1743 extern unsigned char etext
asm ("etext");
1747 extern void safe_bcopy ();
1748 extern void dump_opcode_frequencies ();
1751 /* This uses safe_bcopy because that function comes first in the
1752 Emacs executable. It might be better to use something that
1753 gives the start of the text segment, but start_of_text is not
1754 defined on all systems now. */
1755 monstartup (safe_bcopy
, &etext
);
1764 #ifdef LOCALTIME_CACHE
1765 /* Some versions of localtime have a bug. They cache the value of the time
1766 zone rather than looking it up every time. Since localtime() is
1767 called to bolt the undumping time into the undumped emacs, this
1768 results in localtime ignoring the TZ environment variable.
1769 This flushes the new TZ value into localtime. */
1771 #endif /* defined (LOCALTIME_CACHE) */
1773 /* Enter editor command loop. This never returns. */
1779 /* Sort the args so we can find the most important ones
1780 at the beginning of argv. */
1782 /* First, here's a table of all the standard options. */
1784 struct standard_args
1792 struct standard_args standard_args
[] =
1794 { "-version", "--version", 150, 0 },
1796 { "-nl", "--no-shared-memory", 140, 0 },
1799 { "-map", "--map-data", 130, 0 },
1801 { "-t", "--terminal", 120, 1 },
1802 { "-nw", "--no-window-system", 110, 0 },
1803 { "-nw", "--no-windows", 110, 0 },
1804 { "-batch", "--batch", 100, 0 },
1805 { "-script", "--script", 100, 1 },
1806 { "-help", "--help", 90, 0 },
1807 { "-no-unibyte", "--no-unibyte", 83, 0 },
1808 { "-multibyte", "--multibyte", 82, 0 },
1809 { "-unibyte", "--unibyte", 81, 0 },
1810 { "-no-multibyte", "--no-multibyte", 80, 0 },
1811 { "-nl", "--no-loadup", 70, 0 },
1812 { "-disable-font-backend", "--disable-font-backend", 65, 0 },
1813 /* -d must come last before the options handled in startup.el. */
1814 { "-d", "--display", 60, 1 },
1815 { "-display", 0, 60, 1 },
1816 /* Now for the options handled in startup.el. */
1817 { "-Q", "--quick", 55, 0 },
1818 { "-quick", 0, 55, 0 },
1819 { "-q", "--no-init-file", 50, 0 },
1820 { "-no-init-file", 0, 50, 0 },
1821 { "-no-site-file", "--no-site-file", 40, 0 },
1822 { "-u", "--user", 30, 1 },
1823 { "-user", 0, 30, 1 },
1824 { "-debug-init", "--debug-init", 20, 0 },
1825 { "-nbi", "--no-bitmap-icon", 15, 0 },
1826 { "-iconic", "--iconic", 15, 0 },
1827 { "-D", "--basic-display", 12, 0},
1828 { "-basic-display", 0, 12, 0},
1829 { "-bg", "--background-color", 10, 1 },
1830 { "-background", 0, 10, 1 },
1831 { "-fg", "--foreground-color", 10, 1 },
1832 { "-foreground", 0, 10, 1 },
1833 { "-bd", "--border-color", 10, 1 },
1834 { "-bw", "--border-width", 10, 1 },
1835 { "-ib", "--internal-border", 10, 1 },
1836 { "-ms", "--mouse-color", 10, 1 },
1837 { "-cr", "--cursor-color", 10, 1 },
1838 { "-nbc", "--no-blinking-cursor", 10, 0 },
1839 { "-fn", "--font", 10, 1 },
1840 { "-font", 0, 10, 1 },
1841 { "-fs", "--fullscreen", 10, 0 },
1842 { "-fw", "--fullwidth", 10, 0 },
1843 { "-fh", "--fullheight", 10, 0 },
1844 { "-g", "--geometry", 10, 1 },
1845 { "-geometry", 0, 10, 1 },
1846 { "-T", "--title", 10, 1 },
1847 { "-title", 0, 10, 1 },
1848 { "-name", "--name", 10, 1 },
1849 { "-xrm", "--xrm", 10, 1 },
1850 { "-parent-id", "--parent-id", 10, 1 },
1851 { "-r", "--reverse-video", 5, 0 },
1853 { "-reverse", 0, 5, 0 },
1854 { "-hb", "--horizontal-scroll-bars", 5, 0 },
1855 { "-vb", "--vertical-scroll-bars", 5, 0 },
1856 { "-color", "--color", 5, 0},
1857 { "-no-splash", "--no-splash", 3, 0 },
1858 { "-no-desktop", "--no-desktop", 3, 0 },
1859 /* These have the same priority as ordinary file name args,
1860 so they are not reordered with respect to those. */
1861 { "-L", "--directory", 0, 1 },
1862 { "-directory", 0, 0, 1 },
1863 { "-l", "--load", 0, 1 },
1864 { "-load", 0, 0, 1 },
1865 /* This has no longname, because using --scriptload confuses sort_args,
1866 because then the --script long option seems to match twice; ie
1867 you can't have a long option which is a prefix of another long
1868 option. In any case, this is entirely an internal option. */
1869 { "-scriptload", NULL
, 0, 1 },
1870 { "-f", "--funcall", 0, 1 },
1871 { "-funcall", 0, 0, 1 },
1872 { "-eval", "--eval", 0, 1 },
1873 { "-execute", "--execute", 0, 1 },
1874 { "-find-file", "--find-file", 0, 1 },
1875 { "-visit", "--visit", 0, 1 },
1876 { "-file", "--file", 0, 1 },
1877 { "-insert", "--insert", 0, 1 },
1878 /* This should be processed after ordinary file name args and the like. */
1879 { "-kill", "--kill", -10, 0 },
1882 /* Reorder the elements of ARGV (assumed to have ARGC elements)
1883 so that the highest priority ones come first.
1884 Do not change the order of elements of equal priority.
1885 If an option takes an argument, keep it and its argument together.
1887 If an option that takes no argument appears more
1888 than once, eliminate all but one copy of it. */
1891 sort_args (argc
, argv
)
1895 char **new = (char **) xmalloc (sizeof (char *) * argc
);
1896 /* For each element of argv,
1897 the corresponding element of options is:
1898 0 for an option that takes no arguments,
1899 1 for an option that takes one argument, etc.
1900 -1 for an ordinary non-option argument. */
1901 int *options
= (int *) xmalloc (sizeof (int) * argc
);
1902 int *priority
= (int *) xmalloc (sizeof (int) * argc
);
1904 int incoming_used
= 1;
1908 /* Categorize all the options,
1909 and figure out which argv elts are option arguments. */
1910 for (from
= 1; from
< argc
; from
++)
1914 if (argv
[from
][0] == '-')
1919 /* If we have found "--", don't consider
1920 any more arguments as options. */
1921 if (argv
[from
][1] == '-' && argv
[from
][2] == 0)
1923 /* Leave the "--", and everything following it, at the end. */
1924 for (; from
< argc
; from
++)
1926 priority
[from
] = -100;
1932 /* Look for a match with a known old-fashioned option. */
1933 for (i
= 0; i
< sizeof (standard_args
) / sizeof (standard_args
[0]); i
++)
1934 if (!strcmp (argv
[from
], standard_args
[i
].name
))
1936 options
[from
] = standard_args
[i
].nargs
;
1937 priority
[from
] = standard_args
[i
].priority
;
1938 if (from
+ standard_args
[i
].nargs
>= argc
)
1939 fatal ("Option `%s' requires an argument\n", argv
[from
]);
1940 from
+= standard_args
[i
].nargs
;
1944 /* Look for a match with a known long option.
1945 MATCH is -1 if no match so far, -2 if two or more matches so far,
1946 >= 0 (the table index of the match) if just one match so far. */
1947 if (argv
[from
][1] == '-')
1950 thislen
= strlen (argv
[from
]);
1951 equals
= index (argv
[from
], '=');
1953 thislen
= equals
- argv
[from
];
1956 i
< sizeof (standard_args
) / sizeof (standard_args
[0]); i
++)
1957 if (standard_args
[i
].longname
1958 && !strncmp (argv
[from
], standard_args
[i
].longname
,
1967 /* If we found exactly one match, use that. */
1970 options
[from
] = standard_args
[match
].nargs
;
1971 priority
[from
] = standard_args
[match
].priority
;
1972 /* If --OPTION=VALUE syntax is used,
1973 this option uses just one argv element. */
1976 if (from
+ options
[from
] >= argc
)
1977 fatal ("Option `%s' requires an argument\n", argv
[from
]);
1978 from
+= options
[from
];
1980 /* FIXME When match < 0, shouldn't there be some error,
1981 or at least indication to the user that there was a
1988 /* Copy the arguments, in order of decreasing priority, to NEW. */
1990 while (incoming_used
< argc
)
1993 int best_priority
= -9999;
1995 /* Find the highest priority remaining option.
1996 If several have equal priority, take the first of them. */
1997 for (from
= 1; from
< argc
; from
++)
1999 if (argv
[from
] != 0 && priority
[from
] > best_priority
)
2001 best_priority
= priority
[from
];
2004 /* Skip option arguments--they are tied to the options. */
2005 if (options
[from
] > 0)
2006 from
+= options
[from
];
2012 /* Copy the highest priority remaining option, with its args, to NEW.
2013 Unless it is a duplicate of the previous one. */
2014 if (! (options
[best
] == 0
2015 && ! strcmp (new[to
- 1], argv
[best
])))
2017 new[to
++] = argv
[best
];
2018 for (i
= 0; i
< options
[best
]; i
++)
2019 new[to
++] = argv
[best
+ i
+ 1];
2022 incoming_used
+= 1 + (options
[best
] > 0 ? options
[best
] : 0);
2024 /* Clear out this option in ARGV. */
2026 for (i
= 0; i
< options
[best
]; i
++)
2027 argv
[best
+ i
+ 1] = 0;
2030 /* If duplicate options were deleted, fill up extra space with null ptrs. */
2034 bcopy (new, argv
, sizeof (char *) * argc
);
2041 DEFUN ("kill-emacs", Fkill_emacs
, Skill_emacs
, 0, 1, "P",
2042 doc
: /* Exit the Emacs job and kill it.
2043 If ARG is an integer, return ARG as the exit program code.
2044 If ARG is a string, stuff it as keyboard input.
2046 The value of `kill-emacs-hook', if not void,
2047 is a list of functions (of no args),
2048 all of which are called before Emacs is actually killed. */)
2052 struct gcpro gcpro1
;
2059 if (!NILP (Vrun_hooks
) && !noninteractive
)
2060 call1 (Vrun_hooks
, intern ("kill-emacs-hook"));
2064 /* Is it really necessary to do this deassign
2065 when we are going to exit anyway? */
2070 shut_down_emacs (0, 0, STRINGP (arg
) ? arg
: Qnil
);
2072 /* If we have an auto-save list file,
2073 kill it because we are exiting Emacs deliberately (not crashing).
2074 Do it after shut_down_emacs, which does an auto-save. */
2075 if (STRINGP (Vauto_save_list_file_name
))
2076 unlink (SDATA (Vauto_save_list_file_name
));
2078 exit (INTEGERP (arg
) ? XINT (arg
) : EXIT_SUCCESS
);
2084 /* Perform an orderly shutdown of Emacs. Autosave any modified
2085 buffers, kill any child processes, clean up the terminal modes (if
2086 we're in the foreground), and other stuff like that. Don't perform
2087 any redisplay; this may be called when Emacs is shutting down in
2088 the background, or after its X connection has died.
2090 If SIG is a signal number, print a message for it.
2092 This is called by fatal signal handlers, X protocol error handlers,
2096 shut_down_emacs (sig
, no_x
, stuff
)
2100 /* Prevent running of hooks from now on. */
2103 /* Don't update display from now on. */
2104 Vinhibit_redisplay
= Qt
;
2106 /* If we are controlling the terminal, reset terminal modes. */
2107 #ifdef EMACS_HAVE_TTY_PGRP
2109 int pgrp
= EMACS_GETPGRP (0);
2112 if (EMACS_GET_TTY_PGRP (0, &tpgrp
) != -1
2115 reset_all_sys_modes ();
2116 if (sig
&& sig
!= SIGTERM
)
2117 fprintf (stderr
, "Fatal error (%d)", sig
);
2122 reset_all_sys_modes ();
2125 stuff_buffered_input (stuff
);
2128 inhibit_sentinels
= 1;
2130 kill_buffer_processes (Qnil
);
2131 Fdo_auto_save (Qt
, Qnil
);
2133 #ifdef CLASH_DETECTION
2134 unlock_all_files ();
2138 kill_vms_processes ();
2141 #if 0 /* This triggers a bug in XCloseDisplay and is not needed. */
2142 #ifdef HAVE_X_WINDOWS
2143 /* It's not safe to call intern here. Maybe we are crashing. */
2144 if (!noninteractive
&& SYMBOLP (Vinitial_window_system
)
2145 && SCHARS (SYMBOL_NAME (Vinitial_window_system
)) == 1
2146 && SREF (SYMBOL_NAME (Vinitial_window_system
), 0) == 'x'
2148 Fx_close_current_connection ();
2149 #endif /* HAVE_X_WINDOWS */
2153 /* There is a tendency for a SIGIO signal to arrive within exit,
2154 and cause a SIGHUP because the input descriptor is already closed. */
2156 signal (SIGIO
, SIG_IGN
);
2163 /* Do this only if terminating normally, we want glyph matrices
2164 etc. in a core dump. */
2165 if (sig
== 0 || sig
== SIGTERM
)
2167 check_glyph_memory ();
2168 check_message_stack ();
2182 DEFUN ("dump-emacs-data", Fdump_emacs_data
, Sdump_emacs_data
, 1, 1, 0,
2183 doc
: /* Dump current state of Emacs into data file FILENAME.
2184 This function exists on systems that use HAVE_SHM. */)
2186 Lisp_Object filename
;
2188 extern char my_edata
[];
2192 CHECK_STRING (filename
);
2193 filename
= Fexpand_file_name (filename
, Qnil
);
2196 Vpurify_flag
= Qnil
;
2199 /* Tell malloc where start of impure now is. */
2200 /* Also arrange for warnings when nearly out of space. */
2201 #ifndef SYSTEM_MALLOC
2202 memory_warnings (my_edata
, malloc_warning
);
2204 map_out_data (SDATA (filename
));
2211 #else /* not HAVE_SHM */
2213 DEFUN ("dump-emacs", Fdump_emacs
, Sdump_emacs
, 2, 2, 0,
2214 doc
: /* Dump current state of Emacs into executable file FILENAME.
2215 Take symbols from SYMFILE (presumably the file you executed to run Emacs).
2216 This is used in the file `loadup.el' when building Emacs.
2218 You must run Emacs in batch mode in order to dump it. */)
2220 Lisp_Object filename
, symfile
;
2222 extern char my_edata
[];
2225 int count
= SPECPDL_INDEX ();
2229 if (! noninteractive
)
2230 error ("Dumping Emacs works only in batch mode");
2233 if (heap_bss_diff
> MAX_HEAP_BSS_DIFF
)
2235 fprintf (stderr
, "**************************************************\n");
2236 fprintf (stderr
, "Warning: Your system has a gap between BSS and the\n");
2237 fprintf (stderr
, "heap (%lu bytes). This usually means that exec-shield\n",
2239 fprintf (stderr
, "or something similar is in effect. The dump may\n");
2240 fprintf (stderr
, "fail because of this. See the section about\n");
2241 fprintf (stderr
, "exec-shield in etc/PROBLEMS for more information.\n");
2242 fprintf (stderr
, "**************************************************\n");
2244 #endif /* GNU_LINUX */
2246 /* Bind `command-line-processed' to nil before dumping,
2247 so that the dumped Emacs will process its command line
2248 and set up to work with X windows if appropriate. */
2249 symbol
= intern ("command-line-processed");
2250 specbind (symbol
, Qnil
);
2252 CHECK_STRING (filename
);
2253 filename
= Fexpand_file_name (filename
, Qnil
);
2254 if (!NILP (symfile
))
2256 CHECK_STRING (symfile
);
2257 if (SCHARS (symfile
))
2258 symfile
= Fexpand_file_name (symfile
, Qnil
);
2262 Vpurify_flag
= Qnil
;
2265 set_time_zone_rule (dump_tz
);
2266 #ifndef LOCALTIME_CACHE
2267 /* Force a tz reload, since set_time_zone_rule doesn't. */
2274 mapout_data (SDATA (filename
));
2276 /* Tell malloc where start of impure now is. */
2277 /* Also arrange for warnings when nearly out of space. */
2278 #ifndef SYSTEM_MALLOC
2280 /* On Windows, this was done before dumping, and that once suffices.
2281 Meanwhile, my_edata is not valid on Windows. */
2282 memory_warnings (my_edata
, malloc_warning
);
2283 #endif /* not WINDOWSNT */
2285 #if !defined (SYSTEM_MALLOC) && defined (HAVE_GTK_AND_PTHREAD) && !defined SYNC_INPUT
2286 /* Pthread may call malloc before main, and then we will get an endless
2287 loop, because pthread_self (see alloc.c) calls malloc the first time
2288 it is called on some systems. */
2289 reset_malloc_hooks ();
2291 #ifdef DOUG_LEA_MALLOC
2292 malloc_state_ptr
= malloc_get_state ();
2295 #ifdef USE_MMAP_FOR_BUFFERS
2298 unexec (SDATA (filename
),
2299 !NILP (symfile
) ? SDATA (symfile
) : 0, my_edata
, 0, 0);
2300 #ifdef USE_MMAP_FOR_BUFFERS
2303 #ifdef DOUG_LEA_MALLOC
2304 free (malloc_state_ptr
);
2306 #endif /* not VMS */
2310 return unbind_to (count
, Qnil
);
2313 #endif /* not HAVE_SHM */
2315 #endif /* not CANNOT_DUMP */
2318 /* Recover from setlocale (LC_ALL, ""). */
2322 /* The Emacs Lisp reader needs LC_NUMERIC to be "C",
2323 so that numbers are read and printed properly for Emacs Lisp. */
2324 setlocale (LC_NUMERIC
, "C");
2327 /* Set system locale CATEGORY, with previous locale *PLOCALE, to
2330 synchronize_locale (category
, plocale
, desired_locale
)
2332 Lisp_Object
*plocale
;
2333 Lisp_Object desired_locale
;
2335 if (! EQ (*plocale
, desired_locale
))
2337 *plocale
= desired_locale
;
2338 setlocale (category
, (STRINGP (desired_locale
)
2339 ? (char *) SDATA (desired_locale
)
2344 /* Set system time locale to match Vsystem_time_locale, if possible. */
2346 synchronize_system_time_locale ()
2348 synchronize_locale (LC_TIME
, &Vprevious_system_time_locale
,
2349 Vsystem_time_locale
);
2352 /* Set system messages locale to match Vsystem_messages_locale, if
2355 synchronize_system_messages_locale ()
2358 synchronize_locale (LC_MESSAGES
, &Vprevious_system_messages_locale
,
2359 Vsystem_messages_locale
);
2362 #endif /* HAVE_SETLOCALE */
2369 decode_env_path (evarname
, defalt
)
2370 char *evarname
, *defalt
;
2372 register char *path
, *p
;
2373 Lisp_Object lpath
, element
, tem
;
2375 /* It's okay to use getenv here, because this function is only used
2376 to initialize variables when Emacs starts up, and isn't called
2379 path
= (char *) getenv (evarname
);
2385 /* Ensure values from the environment use the proper directory separator. */
2388 p
= alloca (strlen (path
) + 1);
2392 if ('/' == DIRECTORY_SEP
)
2393 dostounix_filename (path
);
2395 unixtodos_filename (path
);
2401 p
= index (path
, SEPCHAR
);
2402 if (!p
) p
= path
+ strlen (path
);
2403 element
= (p
- path
? make_string (path
, p
- path
)
2404 : build_string ("."));
2406 /* Add /: to the front of the name
2407 if it would otherwise be treated as magic. */
2408 tem
= Ffind_file_name_handler (element
, Qt
);
2410 /* However, if the handler says "I'm safe",
2411 don't bother adding /:. */
2415 prop
= Fget (tem
, intern ("safe-magic"));
2421 element
= concat2 (build_string ("/:"), element
);
2423 lpath
= Fcons (element
, lpath
);
2429 return Fnreverse (lpath
);
2435 Qfile_name_handler_alist
= intern ("file-name-handler-alist");
2436 staticpro (&Qfile_name_handler_alist
);
2440 defsubr (&Sdump_emacs_data
);
2442 defsubr (&Sdump_emacs
);
2446 defsubr (&Skill_emacs
);
2448 defsubr (&Sinvocation_name
);
2449 defsubr (&Sinvocation_directory
);
2451 DEFVAR_LISP ("command-line-args", &Vcommand_line_args
,
2452 doc
: /* Args passed by shell to Emacs, as a list of strings.
2453 Many arguments are deleted from the list as they are processed. */);
2455 DEFVAR_LISP ("system-type", &Vsystem_type
,
2456 doc
: /* Value is symbol indicating type of operating system you are using.
2458 `gnu/linux' compiled for a GNU/Linux system.
2459 `darwin' compiled for Darwin (GNU-Darwin, Mac OS X, ...).
2460 `macos' compiled for Mac OS 9.
2461 `ms-dos' compiled as an MS-DOS application.
2462 `windows-nt' compiled as a native W32 application.
2463 `cygwin' compiled using the Cygwin library.
2465 `axp-vms' compiled for a (Open)VMS system.
2466 Anything else indicates some sort of Unix system. */);
2467 Vsystem_type
= intern (SYSTEM_TYPE
);
2469 DEFVAR_LISP ("system-configuration", &Vsystem_configuration
,
2470 doc
: /* Value is string indicating configuration Emacs was built for.
2471 On MS-Windows, the value reflects the OS flavor and version on which
2472 Emacs is running. */);
2473 Vsystem_configuration
= build_string (EMACS_CONFIGURATION
);
2475 DEFVAR_LISP ("system-configuration-options", &Vsystem_configuration_options
,
2476 doc
: /* String containing the configuration options Emacs was built with. */);
2477 Vsystem_configuration_options
= build_string (EMACS_CONFIG_OPTIONS
);
2479 DEFVAR_BOOL ("noninteractive", &noninteractive1
,
2480 doc
: /* Non-nil means Emacs is running without interactive terminal. */);
2482 DEFVAR_LISP ("kill-emacs-hook", &Vkill_emacs_hook
,
2483 doc
: /* Hook to be run when `kill-emacs' is called.
2484 Since `kill-emacs' may be invoked when the terminal is disconnected (or
2485 in other similar situations), functions placed on this hook should not
2486 expect to be able to interact with the user. To ask for confirmation,
2487 see `kill-emacs-query-functions' instead.
2489 The hook is not run in batch mode, i.e., if `noninteractive' is non-nil. */);
2490 Vkill_emacs_hook
= Qnil
;
2492 DEFVAR_INT ("emacs-priority", &emacs_priority
,
2493 doc
: /* Priority for Emacs to run at.
2494 This value is effective only if set before Emacs is dumped,
2495 and only if the Emacs executable is installed with setuid to permit
2496 it to change priority. (Emacs sets its uid back to the real uid.)
2497 Currently, you need to define SET_EMACS_PRIORITY in `config.h'
2498 before you compile Emacs, to enable the code for this feature. */);
2501 DEFVAR_LISP ("path-separator", &Vpath_separator
,
2502 doc
: /* String containing the character that separates directories in
2503 search paths, such as PATH and other similar environment variables. */);
2506 Vpath_separator
= make_string (&c
, 1);
2509 DEFVAR_LISP ("invocation-name", &Vinvocation_name
,
2510 doc
: /* The program name that was used to run Emacs.
2511 Any directory names are omitted. */);
2513 DEFVAR_LISP ("invocation-directory", &Vinvocation_directory
,
2514 doc
: /* The directory in which the Emacs executable was found, to run it.
2515 The value is nil if that directory's name is not known. */);
2517 DEFVAR_LISP ("installation-directory", &Vinstallation_directory
,
2518 doc
: /* A directory within which to look for the `lib-src' and `etc' directories.
2519 This is non-nil when we can't find those directories in their standard
2520 installed locations, but we can find them near where the Emacs executable
2522 Vinstallation_directory
= Qnil
;
2524 DEFVAR_LISP ("system-messages-locale", &Vsystem_messages_locale
,
2525 doc
: /* System locale for messages. */);
2526 Vsystem_messages_locale
= Qnil
;
2528 DEFVAR_LISP ("previous-system-messages-locale",
2529 &Vprevious_system_messages_locale
,
2530 doc
: /* Most recently used system locale for messages. */);
2531 Vprevious_system_messages_locale
= Qnil
;
2533 DEFVAR_LISP ("system-time-locale", &Vsystem_time_locale
,
2534 doc
: /* System locale for time. */);
2535 Vsystem_time_locale
= Qnil
;
2537 DEFVAR_LISP ("previous-system-time-locale", &Vprevious_system_time_locale
,
2538 doc
: /* Most recently used system locale for time. */);
2539 Vprevious_system_time_locale
= Qnil
;
2542 /* arch-tag: 7bfd356a-c720-4612-8ab6-aa4222931c2e
2543 (do not change this comment) */