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 --display, -d DISPLAY use X server DISPLAY\n\
267 --multibyte, --no-unibyte inhibit the effect of EMACS_UNIBYTE\n\
268 --no-desktop do not load a saved desktop\n\
269 --no-init-file, -q load neither ~/.emacs nor default.el\n\
270 --no-shared-memory, -nl do not use shared memory\n\
271 --no-site-file do not load site-start.el\n\
272 --no-splash do not display a splash screen on startup\n\
273 --no-window-system, -nw do not communicate with X, ignoring $DISPLAY\n\
274 --quick, -Q equivalent to -q --no-site-file --no-splash\n\
275 --script FILE run FILE as an Emacs Lisp script\n\
276 --terminal, -t DEVICE use DEVICE for terminal I/O\n\
277 --unibyte, --no-multibyte run Emacs in unibyte mode\n\
278 --user, -u USER load ~USER/.emacs instead of your own\n\
284 FILE visit FILE using find-file\n\
285 +LINE go to line LINE in next FILE\n\
286 +LINE:COLUMN go to line LINE, column COLUMN, in next FILE\n\
287 --directory, -L DIR add DIR to variable load-path\n\
288 --eval EXPR evaluate Emacs Lisp expression EXPR\n\
289 --execute EXPR evaluate Emacs Lisp expression EXPR\n\
290 --file FILE visit FILE using find-file\n\
291 --find-file FILE visit FILE using find-file\n\
292 --funcall, -f FUNC call Emacs Lisp function FUNC with no arguments\n\
293 --insert FILE insert contents of FILE into current buffer\n\
294 --kill exit without asking for confirmation\n\
295 --load, -l FILE load Emacs Lisp FILE using the load function\n\
296 --visit FILE visit FILE using find-file\n\
302 --background-color, -bg COLOR window background color\n\
303 --basic-display, -D disable many display features;\n\
304 used for debugging Emacs\n\
305 --border-color, -bd COLOR main border color\n\
306 --border-width, -bw WIDTH width of main border\n\
307 --color, --color=MODE override color mode for character terminals;\n\
308 MODE defaults to `auto', and can also\n\
309 be `never', `auto', `always',\n\
310 or a mode name like `ansi8'\n\
311 --cursor-color, -cr COLOR color of the Emacs cursor indicating point\n\
312 --font, -fn FONT default font; must be fixed-width\n\
313 --foreground-color, -fg COLOR window foreground color\n\
314 --fullheight, -fh make the first frame high as the screen\n\
315 --fullscreen, -fs make first frame fullscreen\n\
316 --fullwidth, -fw make the first frame wide as the screen\n\
317 --geometry, -g GEOMETRY window geometry\n\
318 --no-bitmap-icon, -nbi do not use picture of gnu for Emacs icon\n\
319 --iconic start Emacs in iconified state\n\
320 --internal-border, -ib WIDTH width between text and main border\n\
321 --line-spacing, -lsp PIXELS additional space to put between lines\n\
322 --mouse-color, -ms COLOR mouse cursor color in Emacs window\n\
323 --name NAME title for initial Emacs frame\n\
324 --no-blinking-cursor, -nbc disable blinking cursor\n\
325 --reverse-video, -r, -rv switch foreground and background\n\
326 --title, -T TITLE title for initial Emacs frame\n\
327 --vertical-scroll-bars, -vb enable vertical scroll bars\n\
328 --xrm XRESOURCES set additional X resources\n\
329 --help display this help and exit\n\
330 --version output version information and exit\n\
334 You can generally also specify long option names with a single -; for\n\
335 example, -batch as well as --batch. You can use any unambiguous\n\
336 abbreviation for a --option.\n\
338 Various environment variables and window system resources also affect\n\
339 Emacs' operation. See the main documentation.\n\
341 Report bugs to %s. First, please see the Bugs\n\
342 section of the Emacs manual or the file BUGS.\n"
345 /* Signal code for the fatal signal that was received. */
346 int fatal_error_code
;
348 /* Nonzero if handling a fatal error already. */
349 int fatal_error_in_progress
;
351 /* If non-null, call this function from fatal_error_signal before
352 committing suicide. */
354 void (*fatal_error_signal_hook
) P_ ((void));
356 #ifdef HAVE_GTK_AND_PTHREAD
357 /* When compiled with GTK and running under Gnome, multiple threads may be
358 created. Keep track of our main thread to make sure signals are delivered
359 to it (see syssignal.h). */
361 pthread_t main_thread
;
365 /* Handle bus errors, invalid instruction, etc. */
367 fatal_error_signal (sig
)
370 SIGNAL_THREAD_CHECK (sig
);
371 fatal_error_code
= sig
;
372 signal (sig
, SIG_DFL
);
374 TOTALLY_UNBLOCK_INPUT
;
376 /* If fatal error occurs in code below, avoid infinite recursion. */
377 if (! fatal_error_in_progress
)
379 fatal_error_in_progress
= 1;
381 shut_down_emacs (sig
, 0, Qnil
);
385 LIB$
STOP (SS$_ABORT
);
387 /* Signal the same code; this time it will really be fatal.
388 Remember that since we're in a signal handler, the signal we're
389 going to send is probably blocked, so we have to unblock it if we
390 want to really receive it. */
392 sigunblock (sigmask (fatal_error_code
));
395 if (fatal_error_signal_hook
)
396 fatal_error_signal_hook ();
398 kill (getpid (), fatal_error_code
);
404 /* Handler for SIGDANGER. */
406 memory_warning_signal (sig
)
409 signal (sig
, memory_warning_signal
);
410 SIGNAL_THREAD_CHECK (sig
);
412 malloc_warning ("Operating system warns that virtual memory is running low.\n");
414 /* It might be unsafe to call do_auto_save now. */
415 force_auto_save_soon ();
419 /* We define abort, rather than using it from the library,
420 so that GDB can return from a breakpoint here.
421 MSDOS has its own definition in msdos.c. */
423 #if ! defined (DOS_NT) && ! defined (NO_ABORT)
425 #ifndef ABORT_RETURN_TYPE
426 #define ABORT_RETURN_TYPE void
432 kill (getpid (), SIGABRT
);
433 /* This shouldn't be executed, but it prevents a warning. */
439 /* Code for dealing with Lisp access to the Unix command line. */
442 init_cmdargs (argc
, argv
, skip_args
)
448 Lisp_Object name
, dir
, tem
;
449 int count
= SPECPDL_INDEX ();
450 Lisp_Object raw_name
;
455 raw_name
= build_string (argv
[0]);
457 /* Add /: to the front of the name
458 if it would otherwise be treated as magic. */
459 tem
= Ffind_file_name_handler (raw_name
, Qt
);
461 raw_name
= concat2 (build_string ("/:"), raw_name
);
463 Vinvocation_name
= Ffile_name_nondirectory (raw_name
);
464 Vinvocation_directory
= Ffile_name_directory (raw_name
);
466 /* If we got no directory in argv[0], search PATH to find where
467 Emacs actually came from. */
468 if (NILP (Vinvocation_directory
))
471 int yes
= openp (Vexec_path
, Vinvocation_name
,
472 Vexec_suffixes
, &found
, make_number (X_OK
));
475 /* Add /: to the front of the name
476 if it would otherwise be treated as magic. */
477 tem
= Ffind_file_name_handler (found
, Qt
);
479 found
= concat2 (build_string ("/:"), found
);
480 Vinvocation_directory
= Ffile_name_directory (found
);
484 if (!NILP (Vinvocation_directory
)
485 && NILP (Ffile_name_absolute_p (Vinvocation_directory
)))
486 /* Emacs was started with relative path, like ./emacs.
488 Vinvocation_directory
= Fexpand_file_name (Vinvocation_directory
, Qnil
);
490 Vinstallation_directory
= Qnil
;
492 if (!NILP (Vinvocation_directory
))
494 dir
= Vinvocation_directory
;
495 name
= Fexpand_file_name (Vinvocation_name
, dir
);
498 Lisp_Object tem
, lib_src_exists
;
499 Lisp_Object etc_exists
, info_exists
;
501 /* See if dir contains subdirs for use by Emacs.
502 Check for the ones that would exist in a build directory,
503 not including lisp and info. */
504 tem
= Fexpand_file_name (build_string ("lib-src"), dir
);
505 lib_src_exists
= Ffile_exists_p (tem
);
508 /* MSDOS installations frequently remove lib-src, but we still
509 must set installation-directory, or else info won't find
510 its files (it uses the value of installation-directory). */
511 tem
= Fexpand_file_name (build_string ("info"), dir
);
512 info_exists
= Ffile_exists_p (tem
);
517 if (!NILP (lib_src_exists
) || !NILP (info_exists
))
519 tem
= Fexpand_file_name (build_string ("etc"), dir
);
520 etc_exists
= Ffile_exists_p (tem
);
521 if (!NILP (etc_exists
))
523 Vinstallation_directory
524 = Ffile_name_as_directory (dir
);
529 /* See if dir's parent contains those subdirs. */
530 tem
= Fexpand_file_name (build_string ("../lib-src"), dir
);
531 lib_src_exists
= Ffile_exists_p (tem
);
535 /* See the MSDOS commentary above. */
536 tem
= Fexpand_file_name (build_string ("../info"), dir
);
537 info_exists
= Ffile_exists_p (tem
);
542 if (!NILP (lib_src_exists
) || !NILP (info_exists
))
544 tem
= Fexpand_file_name (build_string ("../etc"), dir
);
545 etc_exists
= Ffile_exists_p (tem
);
546 if (!NILP (etc_exists
))
548 tem
= Fexpand_file_name (build_string (".."), dir
);
549 Vinstallation_directory
550 = Ffile_name_as_directory (tem
);
555 /* If the Emacs executable is actually a link,
556 next try the dir that the link points into. */
557 tem
= Ffile_symlink_p (name
);
560 name
= Fexpand_file_name (tem
, dir
);
561 dir
= Ffile_name_directory (name
);
568 Vcommand_line_args
= Qnil
;
570 for (i
= argc
- 1; i
>= 0; i
--)
572 if (i
== 0 || i
> skip_args
)
573 /* For the moment, we keep arguments as is in unibyte strings.
574 They are decoded in the function command-line after we know
575 locale-coding-system. */
577 = Fcons (make_unibyte_string (argv
[i
], strlen (argv
[i
])),
581 unbind_to (count
, Qnil
);
584 DEFUN ("invocation-name", Finvocation_name
, Sinvocation_name
, 0, 0, 0,
585 doc
: /* Return the program name that was used to run Emacs.
586 Any directory names are omitted. */)
589 return Fcopy_sequence (Vinvocation_name
);
592 DEFUN ("invocation-directory", Finvocation_directory
, Sinvocation_directory
,
594 doc
: /* Return the directory name in which the Emacs executable was located. */)
597 return Fcopy_sequence (Vinvocation_directory
);
602 #ifdef LINK_CRTL_SHARE
603 #ifdef SHARABLE_LIB_BUG
604 extern noshare
char **environ
;
605 #endif /* SHARABLE_LIB_BUG */
606 #endif /* LINK_CRTL_SHARE */
610 /* A valid but unlikely value for the TZ environment value.
611 It is OK (though a bit slower) if the user actually chooses this value. */
612 static char dump_tz
[] = "UtC0";
615 #ifndef ORDINARY_LINK
616 /* We don't include crtbegin.o and crtend.o in the link,
617 so these functions and variables might be missed.
618 Provide dummy definitions to avoid error.
619 (We don't have any real constructors or destructors.) */
621 #ifndef GCC_CTORS_IN_LIBC
622 void __do_global_ctors ()
624 void __do_global_ctors_aux ()
626 void __do_global_dtors ()
628 /* GNU/Linux has a bug in its library; avoid an error. */
630 char * __CTOR_LIST__
[2] = { (char *) (-1), 0 };
632 char * __DTOR_LIST__
[2] = { (char *) (-1), 0 };
633 #endif /* GCC_CTORS_IN_LIBC */
636 #endif /* __GNUC__ */
637 #endif /* ORDINARY_LINK */
639 /* Test whether the next argument in ARGV matches SSTR or a prefix of
640 LSTR (at least MINLEN characters). If so, then if VALPTR is non-null
641 (the argument is supposed to have a value) store in *VALPTR either
642 the next argument or the portion of this one after the equal sign.
643 ARGV is read starting at position *SKIPPTR; this index is advanced
644 by the number of arguments used.
646 Too bad we can't just use getopt for all of this, but we don't have
647 enough information to do it right. */
650 argmatch (argv
, argc
, sstr
, lstr
, minlen
, valptr
, skipptr
)
663 /* Don't access argv[argc]; give up in advance. */
664 if (argc
<= *skipptr
+ 1)
667 arg
= argv
[*skipptr
+1];
670 if (strcmp (arg
, sstr
) == 0)
674 *valptr
= argv
[*skipptr
+2];
681 arglen
= (valptr
!= NULL
&& (p
= index (arg
, '=')) != NULL
682 ? p
- arg
: strlen (arg
));
683 if (lstr
== 0 || arglen
< minlen
|| strncmp (arg
, lstr
, arglen
) != 0)
685 else if (valptr
== NULL
)
696 else if (argv
[*skipptr
+2] != NULL
)
698 *valptr
= argv
[*skipptr
+2];
708 #ifdef DOUG_LEA_MALLOC
710 /* malloc can be invoked even before main (e.g. by the dynamic
711 linker), so the dumped malloc state must be restored as early as
712 possible using this special hook. */
715 malloc_initialize_hook ()
718 extern char **environ
;
723 if (!malloc_using_checking
)
724 /* Work around a bug in glibc's malloc. MALLOC_CHECK_ must be
725 ignored if the heap to be restored was constructed without
726 malloc checking. Can't use unsetenv, since that calls malloc. */
730 for (p
= environ
; p
&& *p
; p
++)
731 if (strncmp (*p
, "MALLOC_CHECK_=", 14) == 0)
740 malloc_set_state (malloc_state_ptr
);
741 #ifndef XMALLOC_OVERRUN_CHECK
742 free (malloc_state_ptr
);
747 if (my_heap_start
== 0)
748 my_heap_start
= sbrk (0);
749 malloc_using_checking
= getenv ("MALLOC_CHECK_") != NULL
;
753 void (*__malloc_initialize_hook
) () = malloc_initialize_hook
;
755 #endif /* DOUG_LEA_MALLOC */
758 #define REPORT_EMACS_BUG_ADDRESS "bug-gnu-emacs@gnu.org"
759 #define REPORT_EMACS_BUG_PRETEST_ADDRESS "emacs-pretest-bug@gnu.org"
761 /* This function is used to determine an address to which bug report should
765 bug_reporting_address ()
771 temp
= Fsymbol_value (intern ("emacs-version"));
773 /* When `emacs-version' is invalid, use normal address. */
775 return REPORT_EMACS_BUG_ADDRESS
;
777 string
= SDATA (temp
);
779 /* Count dots in `emacs-version'. */
787 /* When `emacs-version' has at least three dots, it is development or
788 pretest version of Emacs. */
789 return count
>= 3 ? REPORT_EMACS_BUG_PRETEST_ADDRESS
: REPORT_EMACS_BUG_ADDRESS
;
792 #ifdef USE_FONT_BACKEND
793 extern int enable_font_backend
;
794 #endif /* USE_FONT_BACKEND */
812 char stack_bottom_variable
;
813 int do_initial_setlocale
;
818 #ifdef HAVE_SETRLIMIT
825 extern Lisp_Object
*stack_base
;
831 extern char my_endbss
[];
832 extern char *my_endbss_static
;
834 if (my_heap_start
== 0)
835 my_heap_start
= sbrk (0);
837 heap_bss_diff
= (char *)my_heap_start
- max (my_endbss
, my_endbss_static
);
840 #ifdef LINUX_SBRK_BUG
844 #ifdef RUN_TIME_REMAP
846 run_time_remap (argv
[0]);
851 unexec_init_emacs_zone ();
854 sort_args (argc
, argv
);
856 while (argv
[argc
]) argc
++;
858 if (argmatch (argv
, argc
, "-version", "--version", 3, NULL
, &skip_args
)
859 /* We don't know the version number unless this is a dumped Emacs.
860 So ignore --version otherwise. */
863 Lisp_Object tem
, tem2
;
864 tem
= Fsymbol_value (intern ("emacs-version"));
865 tem2
= Fsymbol_value (intern ("emacs-copyright"));
868 fprintf (stderr
, "Invalid value of `emacs-version'\n");
873 fprintf (stderr
, "Invalid value of `emacs-copyright'\n");
878 printf ("GNU Emacs %s\n", SDATA (tem
));
879 printf ("%s\n", SDATA(tem2
));
880 printf ("GNU Emacs comes with ABSOLUTELY NO WARRANTY.\n");
881 printf ("You may redistribute copies of Emacs\n");
882 printf ("under the terms of the GNU General Public License.\n");
883 printf ("For more information about these matters, ");
884 printf ("see the file named COPYING.\n");
889 #ifdef HAVE_PERSONALITY_LINUX32
890 /* See if there is a gap between the end of BSS and the heap.
891 In that case, set personality and exec ourself again. */
893 && (strcmp (argv
[argc
-1], "dump") == 0
894 || strcmp (argv
[argc
-1], "bootstrap") == 0)
895 && heap_bss_diff
> MAX_HEAP_BSS_DIFF
)
897 if (! getenv ("EMACS_HEAP_EXEC"))
899 /* Set this so we only do this once. */
900 putenv("EMACS_HEAP_EXEC=true");
902 /* A flag to turn off address randomization which is introduced
903 in linux kernel shipped with fedora core 4 */
904 #define ADD_NO_RANDOMIZE 0x0040000
905 personality (PER_LINUX32
| ADD_NO_RANDOMIZE
);
906 #undef ADD_NO_RANDOMIZE
908 execvp (argv
[0], argv
);
910 /* If the exec fails, try to dump anyway. */
914 #endif /* HAVE_PERSONALITY_LINUX32 */
917 /* Map in shared memory, if we are using that. */
919 if (argmatch (argv
, argc
, "-nl", "--no-shared-memory", 6, NULL
, &skip_args
))
922 /* The shared memory was just restored, which clobbered this. */
928 /* The shared memory was just restored, which clobbered this. */
935 extern int malloc_cookie
;
936 /* This helps out unexnext.c. */
938 if (malloc_jumpstart (malloc_cookie
) != 0)
939 printf ("malloc jumpstart failed!\n");
944 /* Skip process serial number passed in the form -psn_x_y as
945 command-line argument. The WindowServer adds this option when
946 Emacs is invoked from the Finder or by the `open' command. In
947 these cases, the working directory becomes `/', so we change it
948 to the user's home directory. */
949 if (argc
> skip_args
+ 1 && strncmp (argv
[skip_args
+1], "-psn_", 5) == 0)
951 chdir (getenv ("HOME"));
957 /* If -map specified, map the data file in. */
960 if (argmatch (argv
, argc
, "-map", "--map-data", 3, &file
, &skip_args
))
964 #ifdef LINK_CRTL_SHARE
965 #ifdef SHARABLE_LIB_BUG
966 /* Bletcherous shared libraries! */
968 stdin
= fdopen (0, "r");
970 stdout
= fdopen (1, "w");
972 stderr
= fdopen (2, "w");
975 #endif /* SHARABLE_LIB_BUG */
976 #endif /* LINK_CRTL_SHARE */
979 #if defined (HAVE_SETRLIMIT) && defined (RLIMIT_STACK)
980 /* Extend the stack space available.
981 Don't do that if dumping, since some systems (e.g. DJGPP)
982 might define a smaller stack limit at that time. */
985 && (!noninteractive
|| initialized
)
987 && !getrlimit (RLIMIT_STACK
, &rlim
))
990 extern size_t re_max_failures
;
991 /* Approximate the amount regex.c needs per unit of re_max_failures. */
992 int ratio
= 20 * sizeof (char *);
993 /* Then add 33% to cover the size of the smaller stacks that regex.c
994 successively allocates and discards, on its way to the maximum. */
996 /* Add in some extra to cover
997 what we're likely to use for other reasons. */
998 newlim
= re_max_failures
* ratio
+ 200000;
1000 /* NetBSD (at least NetBSD 1.2G and former) has a bug in its
1001 stack allocation routine for new process that the allocation
1002 fails if stack limit is not on page boundary. So, round up the
1003 new limit to page boundary. */
1004 newlim
= (newlim
+ getpagesize () - 1) / getpagesize () * getpagesize();
1006 if (newlim
> rlim
.rlim_max
)
1008 newlim
= rlim
.rlim_max
;
1009 /* Don't let regex.c overflow the stack we have. */
1010 re_max_failures
= (newlim
- 200000) / ratio
;
1012 if (rlim
.rlim_cur
< newlim
)
1013 rlim
.rlim_cur
= newlim
;
1015 setrlimit (RLIMIT_STACK
, &rlim
);
1017 #endif /* HAVE_SETRLIMIT and RLIMIT_STACK */
1019 /* Record (approximately) where the stack begins. */
1020 stack_bottom
= &stack_bottom_variable
;
1022 #ifdef USG_SHARED_LIBRARIES
1024 brk ((void *)bss_end
);
1029 #ifndef SYSTEM_MALLOC
1030 /* Arrange to get warning messages as memory fills up. */
1031 memory_warnings (0, malloc_warning
);
1033 /* Call malloc at least once, to run the initial __malloc_hook.
1034 Also call realloc and free for consistency. */
1035 free (realloc (malloc (4), 4));
1038 /* Arrange to disable interrupt input inside malloc etc. */
1039 uninterrupt_malloc ();
1040 # endif /* not SYNC_INPUT */
1041 #endif /* not SYSTEM_MALLOC */
1043 #ifdef HAVE_GTK_AND_PTHREAD
1044 main_thread
= pthread_self ();
1045 #endif /* HAVE_GTK_AND_PTHREAD */
1047 #if defined (MSDOS) || defined (WINDOWSNT)
1048 /* We do all file input/output as binary files. When we need to translate
1049 newlines, we do that manually. */
1051 #endif /* MSDOS || WINDOWSNT */
1055 if (!isatty (fileno (stdin
)))
1056 setmode (fileno (stdin
), O_BINARY
);
1057 if (!isatty (fileno (stdout
)))
1060 setmode (fileno (stdout
), O_BINARY
);
1062 #else /* not __DJGPP__ >= 2 */
1063 (stdin
)->_flag
&= ~_IOTEXT
;
1064 (stdout
)->_flag
&= ~_IOTEXT
;
1065 (stderr
)->_flag
&= ~_IOTEXT
;
1066 #endif /* not __DJGPP__ >= 2 */
1069 #ifdef SET_EMACS_PRIORITY
1071 nice (emacs_priority
);
1073 #endif /* SET_EMACS_PRIORITY */
1075 /* Skip initial setlocale if LC_ALL is "C", as it's not needed in that case.
1076 The build procedure uses this while dumping, to ensure that the
1077 dumped Emacs does not have its system locale tables initialized,
1078 as that might cause screwups when the dumped Emacs starts up. */
1080 char *lc_all
= getenv ("LC_ALL");
1081 do_initial_setlocale
= ! lc_all
|| strcmp (lc_all
, "C");
1084 /* Set locale now, so that initial error messages are localized properly.
1085 fixup_locale must wait until later, since it builds strings. */
1086 if (do_initial_setlocale
)
1087 setlocale (LC_ALL
, "");
1089 #ifdef EXTRA_INITIALIZE
1093 inhibit_window_system
= 0;
1095 /* Handle the -t switch, which specifies filename to use as terminal. */
1099 if (argmatch (argv
, argc
, "-t", "--terminal", 4, &term
, &skip_args
))
1104 result
= emacs_open (term
, O_RDWR
, 0);
1107 char *errstring
= strerror (errno
);
1108 fprintf (stderr
, "%s: %s: %s\n", argv
[0], term
, errstring
);
1114 fprintf (stderr
, "%s: %s: not a tty\n", argv
[0], term
);
1117 fprintf (stderr
, "Using %s\n", term
);
1118 #ifdef HAVE_WINDOW_SYSTEM
1119 inhibit_window_system
= 1; /* -t => -nw */
1126 /* Command line option --no-windows is deprecated and thus not mentioned
1127 in the manual and usage informations. */
1128 if (argmatch (argv
, argc
, "-nw", "--no-window-system", 6, NULL
, &skip_args
)
1129 || argmatch (argv
, argc
, "-nw", "--no-windows", 6, NULL
, &skip_args
))
1130 inhibit_window_system
= 1;
1132 /* Handle the -batch switch, which means don't do interactive display. */
1134 if (argmatch (argv
, argc
, "-batch", "--batch", 5, NULL
, &skip_args
))
1137 Vundo_outer_limit
= Qnil
;
1139 if (argmatch (argv
, argc
, "-script", "--script", 3, &junk
, &skip_args
))
1141 noninteractive
= 1; /* Set batch mode. */
1142 /* Convert --script to --scriptload, un-skip it, and sort again
1143 so that it will be handled in proper sequence. */
1144 argv
[skip_args
- 1] = "-scriptload";
1146 sort_args (argc
, argv
);
1149 /* Handle the --help option, which gives a usage message. */
1150 if (argmatch (argv
, argc
, "-help", "--help", 3, NULL
, &skip_args
))
1152 printf (USAGE1
, argv
[0], USAGE2
);
1154 printf (USAGE4
, bug_reporting_address ());
1158 if (! noninteractive
)
1163 inherited_pgroup
= EMACS_GETPGRP (0);
1164 setpgrp (0, getpid ());
1167 #if defined (USG5) && defined (INTERRUPT_INPUT)
1171 #if defined (HAVE_GTK_AND_PTHREAD) && !defined (SYSTEM_MALLOC) && !defined (DOUG_LEA_MALLOC)
1173 extern void malloc_enable_thread
P_ ((void));
1175 malloc_enable_thread ();
1182 /* Don't catch SIGHUP if dumping. */
1189 sigblock (sigmask (SIGHUP
));
1190 /* In --batch mode, don't catch SIGHUP if already ignored.
1191 That makes nohup work. */
1192 if (! noninteractive
1193 || signal (SIGHUP
, SIG_IGN
) != SIG_IGN
)
1194 signal (SIGHUP
, fatal_error_signal
);
1195 sigunblock (sigmask (SIGHUP
));
1200 ! noninteractive
|| initialized
1206 /* Don't catch these signals in batch mode if dumping.
1207 On some machines, this sets static data that would make
1208 signal fail to work right when the dumped Emacs is run. */
1209 signal (SIGQUIT
, fatal_error_signal
);
1210 signal (SIGILL
, fatal_error_signal
);
1211 signal (SIGTRAP
, fatal_error_signal
);
1213 add_user_signal (SIGUSR1
, "sigusr1");
1216 add_user_signal (SIGUSR2
, "sigusr2");
1219 signal (SIGABRT
, fatal_error_signal
);
1222 signal (SIGHWE
, fatal_error_signal
);
1225 signal (SIGPRE
, fatal_error_signal
);
1228 signal (SIGORE
, fatal_error_signal
);
1231 signal (SIGUME
, fatal_error_signal
);
1234 signal (SIGDLK
, fatal_error_signal
);
1237 signal (SIGCPULIM
, fatal_error_signal
);
1240 /* This is missing on some systems - OS/2, for example. */
1241 signal (SIGIOT
, fatal_error_signal
);
1244 signal (SIGEMT
, fatal_error_signal
);
1246 signal (SIGFPE
, fatal_error_signal
);
1248 signal (SIGBUS
, fatal_error_signal
);
1250 signal (SIGSEGV
, fatal_error_signal
);
1252 signal (SIGSYS
, fatal_error_signal
);
1254 signal (SIGTERM
, fatal_error_signal
);
1256 signal (SIGXCPU
, fatal_error_signal
);
1259 signal (SIGXFSZ
, fatal_error_signal
);
1260 #endif /* SIGXFSZ */
1263 /* This just means available memory is getting low. */
1264 signal (SIGDANGER
, memory_warning_signal
);
1268 /* 20 is SIGCHLD, 21 is SIGTTIN, 22 is SIGTTOU. */
1269 signal (SIGXCPU
, fatal_error_signal
);
1271 signal (SIGIOINT
, fatal_error_signal
);
1273 signal (SIGGRANT
, fatal_error_signal
);
1274 signal (SIGRETRACT
, fatal_error_signal
);
1275 signal (SIGSOUND
, fatal_error_signal
);
1276 signal (SIGMSG
, fatal_error_signal
);
1280 noninteractive1
= noninteractive
;
1282 /* Perform basic initializations (not merely interning symbols). */
1289 init_character_once ();
1290 init_charset_once ();
1291 init_coding_once ();
1292 init_syntax_once (); /* Create standard syntax table. */
1293 init_category_once (); /* Create standard category table. */
1294 /* Must be done before init_buffer. */
1295 init_casetab_once ();
1296 init_buffer_once (); /* Create buffer table and some buffers. */
1297 init_minibuf_once (); /* Create list of minibuffers. */
1298 /* Must precede init_window_once. */
1300 /* Call syms_of_xfaces before init_window_once because that
1301 function creates Vterminal_frame. Termcap frames now use
1302 faces, and the face implementation uses some symbols as
1305 /* XXX syms_of_keyboard uses some symbols in keymap.c. It would
1306 be better to arrange things not to have this dependency. */
1308 /* Call syms_of_keyboard before init_window_once because
1309 keyboard sets up symbols that include some face names that
1310 the X support will want to use. This can happen when
1311 CANNOT_DUMP is defined. */
1312 syms_of_keyboard ();
1315 /* init_window_once calls make_terminal_frame which on Mac OS
1316 creates a full-fledge output_mac type frame. This does not
1317 work correctly before syms_of_textprop, syms_of_macfns,
1318 syms_of_ccl, syms_of_fontset, syms_of_xterm, syms_of_search,
1319 syms_of_frame, mac_term_init, and init_keyboard have already
1321 syms_of_textprop ();
1327 syms_of_macselect ();
1332 mac_term_init (build_string ("Mac"), NULL
, NULL
);
1335 /* Called before syms_of_fileio, because it sets up Qerror_condition. */
1338 /* Before syms_of_coding to initialize Vgc_cons_threshold. */
1340 /* Before syms_of_coding because it initializes Qcharsetp. */
1342 /* Before init_window_once, because it sets up the
1343 Vcoding_system_hash_table. */
1344 syms_of_coding (); /* This should be after syms_of_fileio. */
1346 init_window_once (); /* Init the window system. */
1347 init_fileio_once (); /* Must precede any path manipulation. */
1348 #ifdef HAVE_WINDOW_SYSTEM
1349 init_fringe_once (); /* Swap bitmaps if necessary. */
1350 #endif /* HAVE_WINDOW_SYSTEM */
1355 if (do_initial_setlocale
)
1358 Vsystem_messages_locale
= Vprevious_system_messages_locale
;
1359 Vsystem_time_locale
= Vprevious_system_time_locale
;
1364 #ifdef CLASH_DETECTION
1368 running_asynch_code
= 0;
1370 /* Handle --unibyte and the EMACS_UNIBYTE envvar,
1371 but not while dumping. */
1374 int inhibit_unibyte
= 0;
1376 /* --multibyte overrides EMACS_UNIBYTE. */
1377 if (argmatch (argv
, argc
, "-no-unibyte", "--no-unibyte", 4, NULL
, &skip_args
)
1378 || argmatch (argv
, argc
, "-multibyte", "--multibyte", 4, NULL
, &skip_args
)
1379 /* Ignore EMACS_UNIBYTE before dumping. */
1380 || (!initialized
&& noninteractive
))
1381 inhibit_unibyte
= 1;
1383 /* --unibyte requests that we set up to do everything with single-byte
1384 buffers and strings. We need to handle this before calling
1385 init_lread, init_editfns and other places that generate Lisp strings
1386 from text in the environment. */
1387 /* Actually this shouldn't be needed as of 20.4 in a generally
1388 unibyte environment. As handa says, environment values
1389 aren't now decoded; also existing buffers are now made
1390 unibyte during startup if .emacs sets unibyte. Tested with
1391 8-bit data in environment variables and /etc/passwd, setting
1392 unibyte and Latin-1 in .emacs. -- Dave Love */
1393 if (argmatch (argv
, argc
, "-unibyte", "--unibyte", 4, NULL
, &skip_args
)
1394 || argmatch (argv
, argc
, "-no-multibyte", "--no-multibyte", 4, NULL
, &skip_args
)
1395 || (getenv ("EMACS_UNIBYTE") && !inhibit_unibyte
))
1397 Lisp_Object old_log_max
;
1398 Lisp_Object symbol
, tail
;
1400 symbol
= intern ("default-enable-multibyte-characters");
1401 Fset (symbol
, Qnil
);
1405 /* Erase pre-dump messages in *Messages* now so no abort. */
1406 old_log_max
= Vmessage_log_max
;
1407 XSETFASTINT (Vmessage_log_max
, 0);
1408 message_dolog ("", 0, 1, 0);
1409 Vmessage_log_max
= old_log_max
;
1412 for (tail
= Vbuffer_alist
; CONSP (tail
);
1417 buffer
= Fcdr (XCAR (tail
));
1418 /* Make a multibyte buffer unibyte. */
1419 if (BUF_Z_BYTE (XBUFFER (buffer
)) > BUF_Z (XBUFFER (buffer
)))
1421 struct buffer
*current
= current_buffer
;
1423 set_buffer_temp (XBUFFER (buffer
));
1424 Fset_buffer_multibyte (Qnil
);
1425 set_buffer_temp (current
);
1432 = argmatch (argv
, argc
, "-nl", "--no-loadup", 6, NULL
, &skip_args
);
1434 #ifdef USE_FONT_BACKEND
1435 enable_font_backend
= 1;
1436 if (argmatch (argv
, argc
, "-enable-font-backend", "--enable-font-backend",
1437 4, NULL
, &skip_args
))
1438 enable_font_backend
= 1;
1439 else if (argmatch (argv
, argc
,
1440 "-disable-font-backend", "--disable-font-backend",
1441 4, NULL
, &skip_args
))
1442 enable_font_backend
= 0;
1443 #endif /* USE_FONT_BACKEND */
1445 #ifdef HAVE_X_WINDOWS
1446 /* Stupid kludge to catch command-line display spec. We can't
1447 handle this argument entirely in window system dependent code
1448 because we don't even know which window system dependent code
1449 to run until we've recognized this argument. */
1451 char *displayname
= 0;
1452 int count_before
= skip_args
;
1454 /* Skip any number of -d options, but only use the last one. */
1457 int count_before_this
= skip_args
;
1459 if (argmatch (argv
, argc
, "-d", "--display", 3, &displayname
, &skip_args
))
1461 else if (argmatch (argv
, argc
, "-display", 0, 3, &displayname
, &skip_args
))
1466 count_before
= count_before_this
;
1469 /* If we have the form --display=NAME,
1470 convert it into -d name.
1471 This requires inserting a new element into argv. */
1472 if (displayname
!= 0 && skip_args
- count_before
== 1)
1474 char **new = (char **) xmalloc (sizeof (char *) * (argc
+ 2));
1477 for (j
= 0; j
< count_before
+ 1; j
++)
1479 new[count_before
+ 1] = "-d";
1480 new[count_before
+ 2] = displayname
;
1481 for (j
= count_before
+ 2; j
<argc
; j
++)
1482 new[j
+ 1] = argv
[j
];
1486 /* Change --display to -d, when its arg is separate. */
1487 else if (displayname
!= 0 && skip_args
> count_before
1488 && argv
[count_before
+ 1][1] == '-')
1489 argv
[count_before
+ 1] = "-d";
1491 /* Don't actually discard this arg. */
1492 skip_args
= count_before
;
1496 /* argmatch must not be used after here,
1497 except when bulding temacs
1498 because the -d argument has not been skipped in skip_args. */
1501 /* Call early 'cause init_environment needs it. */
1503 /* Set defaults for several environment variables. */
1505 init_environment (argc
, argv
, skip_args
);
1512 /* Initialize environment from registry settings. */
1513 init_environment (argv
);
1514 init_ntproc (); /* must precede init_editfns. */
1517 #if defined (MAC_OSX) && defined (HAVE_CARBON)
1519 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. */
1568 syms_of_floatfns ();
1571 syms_of_bytecode ();
1573 syms_of_casefiddle ();
1575 syms_of_callproc ();
1576 syms_of_category ();
1579 syms_of_character ();
1581 #ifndef NO_DIR_LIBRARY
1583 #endif /* not NO_DIR_LIBRARY */
1588 #ifdef CLASH_DETECTION
1589 syms_of_filelock ();
1590 #endif /* CLASH_DETECTION */
1593 /* syms_of_keymap (); */
1601 syms_of_terminal ();
1607 syms_of_textprop ();
1608 syms_of_composite ();
1614 #endif /* WINDOWSNT */
1617 #ifdef HAVE_WINDOW_SYSTEM
1621 #endif /* HAVE_WINDOW_SYSTEM */
1622 #ifdef HAVE_X_WINDOWS
1632 #endif /* HAVE_X_WINDOWS */
1636 /* Called before init_window_once for Mac OS Classic. */
1644 syms_of_w32select ();
1647 #endif /* HAVE_NTGUI */
1649 #if defined (MAC_OSX) && defined (HAVE_CARBON)
1653 syms_of_macselect ();
1655 #endif /* MAC_OSX && HAVE_CARBON */
1658 syms_of_dbusbind ();
1659 #endif /* HAVE_DBUS */
1669 keys_of_casefiddle ();
1672 keys_of_keyboard ();
1679 /* Initialization that must be done even if the global variable
1680 initialized is non zero. */
1682 globals_of_w32fns ();
1683 globals_of_w32menu ();
1684 globals_of_w32select ();
1685 #endif /* HAVE_NTGUI */
1690 init_editfns (); /* init_process uses Voperating_system_release. */
1691 init_process (); /* init_display uses add_keyboard_wait_descriptor. */
1692 init_keyboard (); /* This too must precede init_sys_modes. */
1694 init_vmsproc (); /* And this too. */
1696 if (!noninteractive
)
1699 init_vms_input ();/* init_display calls get_tty_size, that needs this. */
1701 init_display (); /* Determine terminal type. Calls init_sys_modes. */
1705 #ifdef HAVE_WINDOW_SYSTEM
1708 #endif /* HAVE_WINDOW_SYSTEM */
1722 /* Handle -l loadup, args passed by Makefile. */
1723 if (argmatch (argv
, argc
, "-l", "--load", 3, &file
, &skip_args
))
1724 Vtop_level
= Fcons (intern ("load"),
1725 Fcons (build_string (file
), Qnil
));
1726 /* Unless next switch is -nl, load "loadup.el" first thing. */
1728 Vtop_level
= Fcons (intern ("load"),
1729 Fcons (build_string ("loadup.el"), Qnil
));
1736 /* If the execution TZ happens to be the same as the dump TZ,
1737 change it to some other value and then change it back,
1738 to force the underlying implementation to reload the TZ info.
1739 This is needed on implementations that load TZ info from files,
1740 since the TZ file contents may differ between dump and execution. */
1741 char *tz
= getenv ("TZ");
1742 if (tz
&& !strcmp (tz
, dump_tz
))
1752 /* Set up for profiling. This is known to work on FreeBSD,
1753 GNU/Linux and MinGW. It might work on some other systems too.
1754 Give it a try and tell us if it works on your system. To compile
1755 for profiling, add -pg to the switches your platform uses in
1756 CFLAGS and LDFLAGS. For example:
1757 `make CFLAGS="-pg -g -O -DPROFILING=1" LDFLAGS="-pg -g"'. */
1758 #if defined (__FreeBSD__) || defined (GNU_LINUX) || defined(__MINGW32__)
1762 extern void _mcleanup ();
1764 extern unsigned char etext
asm ("etext");
1768 extern void safe_bcopy ();
1769 extern void dump_opcode_frequencies ();
1772 /* This uses safe_bcopy because that function comes first in the
1773 Emacs executable. It might be better to use something that
1774 gives the start of the text segment, but start_of_text is not
1775 defined on all systems now. */
1776 monstartup (safe_bcopy
, &etext
);
1785 #ifdef LOCALTIME_CACHE
1786 /* Some versions of localtime have a bug. They cache the value of the time
1787 zone rather than looking it up every time. Since localtime() is
1788 called to bolt the undumping time into the undumped emacs, this
1789 results in localtime ignoring the TZ environment variable.
1790 This flushes the new TZ value into localtime. */
1792 #endif /* defined (LOCALTIME_CACHE) */
1794 /* Enter editor command loop. This never returns. */
1800 /* Sort the args so we can find the most important ones
1801 at the beginning of argv. */
1803 /* First, here's a table of all the standard options. */
1805 struct standard_args
1813 struct standard_args standard_args
[] =
1815 { "-version", "--version", 150, 0 },
1817 { "-nl", "--no-shared-memory", 140, 0 },
1820 { "-map", "--map-data", 130, 0 },
1822 { "-t", "--terminal", 120, 1 },
1823 { "-nw", "--no-window-system", 110, 0 },
1824 { "-nw", "--no-windows", 110, 0 },
1825 { "-batch", "--batch", 100, 0 },
1826 { "-script", "--script", 100, 1 },
1827 { "-help", "--help", 90, 0 },
1828 { "-no-unibyte", "--no-unibyte", 83, 0 },
1829 { "-multibyte", "--multibyte", 82, 0 },
1830 { "-unibyte", "--unibyte", 81, 0 },
1831 { "-no-multibyte", "--no-multibyte", 80, 0 },
1832 { "-nl", "--no-loadup", 70, 0 },
1833 { "-enable-font-backend", "--enable-font-backend", 65, 0 },
1834 { "-disable-font-backend", "--disable-font-backend", 65, 0 },
1835 /* -d must come last before the options handled in startup.el. */
1836 { "-d", "--display", 60, 1 },
1837 { "-display", 0, 60, 1 },
1838 /* Now for the options handled in startup.el. */
1839 { "-Q", "--quick", 55, 0 },
1840 { "-quick", 0, 55, 0 },
1841 { "-q", "--no-init-file", 50, 0 },
1842 { "-no-init-file", 0, 50, 0 },
1843 { "-no-site-file", "--no-site-file", 40, 0 },
1844 { "-u", "--user", 30, 1 },
1845 { "-user", 0, 30, 1 },
1846 { "-debug-init", "--debug-init", 20, 0 },
1847 { "-nbi", "--no-bitmap-icon", 15, 0 },
1848 { "-iconic", "--iconic", 15, 0 },
1849 { "-D", "--basic-display", 12, 0},
1850 { "-basic-display", 0, 12, 0},
1851 { "-bg", "--background-color", 10, 1 },
1852 { "-background", 0, 10, 1 },
1853 { "-fg", "--foreground-color", 10, 1 },
1854 { "-foreground", 0, 10, 1 },
1855 { "-bd", "--border-color", 10, 1 },
1856 { "-bw", "--border-width", 10, 1 },
1857 { "-ib", "--internal-border", 10, 1 },
1858 { "-ms", "--mouse-color", 10, 1 },
1859 { "-cr", "--cursor-color", 10, 1 },
1860 { "-nbc", "--no-blinking-cursor", 10, 0 },
1861 { "-fn", "--font", 10, 1 },
1862 { "-font", 0, 10, 1 },
1863 { "-fs", "--fullscreen", 10, 0 },
1864 { "-fw", "--fullwidth", 10, 0 },
1865 { "-fh", "--fullheight", 10, 0 },
1866 { "-g", "--geometry", 10, 1 },
1867 { "-geometry", 0, 10, 1 },
1868 { "-T", "--title", 10, 1 },
1869 { "-title", 0, 10, 1 },
1870 { "-name", "--name", 10, 1 },
1871 { "-xrm", "--xrm", 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 },
1880 /* These have the same priority as ordinary file name args,
1881 so they are not reordered with respect to those. */
1882 { "-L", "--directory", 0, 1 },
1883 { "-directory", 0, 0, 1 },
1884 { "-l", "--load", 0, 1 },
1885 { "-load", 0, 0, 1 },
1886 { "-scriptload", "--scriptload", 0, 1 },
1887 { "-f", "--funcall", 0, 1 },
1888 { "-funcall", 0, 0, 1 },
1889 { "-eval", "--eval", 0, 1 },
1890 { "-execute", "--execute", 0, 1 },
1891 { "-find-file", "--find-file", 0, 1 },
1892 { "-visit", "--visit", 0, 1 },
1893 { "-file", "--file", 0, 1 },
1894 { "-insert", "--insert", 0, 1 },
1895 /* This should be processed after ordinary file name args and the like. */
1896 { "-kill", "--kill", -10, 0 },
1899 /* Reorder the elements of ARGV (assumed to have ARGC elements)
1900 so that the highest priority ones come first.
1901 Do not change the order of elements of equal priority.
1902 If an option takes an argument, keep it and its argument together.
1904 If an option that takes no argument appears more
1905 than once, eliminate all but one copy of it. */
1908 sort_args (argc
, argv
)
1912 char **new = (char **) xmalloc (sizeof (char *) * argc
);
1913 /* For each element of argv,
1914 the corresponding element of options is:
1915 0 for an option that takes no arguments,
1916 1 for an option that takes one argument, etc.
1917 -1 for an ordinary non-option argument. */
1918 int *options
= (int *) xmalloc (sizeof (int) * argc
);
1919 int *priority
= (int *) xmalloc (sizeof (int) * argc
);
1921 int incoming_used
= 1;
1925 /* Categorize all the options,
1926 and figure out which argv elts are option arguments. */
1927 for (from
= 1; from
< argc
; from
++)
1931 if (argv
[from
][0] == '-')
1936 /* If we have found "--", don't consider
1937 any more arguments as options. */
1938 if (argv
[from
][1] == '-' && argv
[from
][2] == 0)
1940 /* Leave the "--", and everything following it, at the end. */
1941 for (; from
< argc
; from
++)
1943 priority
[from
] = -100;
1949 /* Look for a match with a known old-fashioned option. */
1950 for (i
= 0; i
< sizeof (standard_args
) / sizeof (standard_args
[0]); i
++)
1951 if (!strcmp (argv
[from
], standard_args
[i
].name
))
1953 options
[from
] = standard_args
[i
].nargs
;
1954 priority
[from
] = standard_args
[i
].priority
;
1955 if (from
+ standard_args
[i
].nargs
>= argc
)
1956 fatal ("Option `%s' requires an argument\n", argv
[from
]);
1957 from
+= standard_args
[i
].nargs
;
1961 /* Look for a match with a known long option.
1962 MATCH is -1 if no match so far, -2 if two or more matches so far,
1963 >= 0 (the table index of the match) if just one match so far. */
1964 if (argv
[from
][1] == '-')
1967 thislen
= strlen (argv
[from
]);
1968 equals
= index (argv
[from
], '=');
1970 thislen
= equals
- argv
[from
];
1973 i
< sizeof (standard_args
) / sizeof (standard_args
[0]); i
++)
1974 if (standard_args
[i
].longname
1975 && !strncmp (argv
[from
], standard_args
[i
].longname
,
1984 /* If we found exactly one match, use that. */
1987 options
[from
] = standard_args
[match
].nargs
;
1988 priority
[from
] = standard_args
[match
].priority
;
1989 /* If --OPTION=VALUE syntax is used,
1990 this option uses just one argv element. */
1993 if (from
+ options
[from
] >= argc
)
1994 fatal ("Option `%s' requires an argument\n", argv
[from
]);
1995 from
+= options
[from
];
2002 /* Copy the arguments, in order of decreasing priority, to NEW. */
2004 while (incoming_used
< argc
)
2007 int best_priority
= -9999;
2009 /* Find the highest priority remaining option.
2010 If several have equal priority, take the first of them. */
2011 for (from
= 1; from
< argc
; from
++)
2013 if (argv
[from
] != 0 && priority
[from
] > best_priority
)
2015 best_priority
= priority
[from
];
2018 /* Skip option arguments--they are tied to the options. */
2019 if (options
[from
] > 0)
2020 from
+= options
[from
];
2026 /* Copy the highest priority remaining option, with its args, to NEW.
2027 Unless it is a duplicate of the previous one. */
2028 if (! (options
[best
] == 0
2029 && ! strcmp (new[to
- 1], argv
[best
])))
2031 new[to
++] = argv
[best
];
2032 for (i
= 0; i
< options
[best
]; i
++)
2033 new[to
++] = argv
[best
+ i
+ 1];
2036 incoming_used
+= 1 + (options
[best
] > 0 ? options
[best
] : 0);
2038 /* Clear out this option in ARGV. */
2040 for (i
= 0; i
< options
[best
]; i
++)
2041 argv
[best
+ i
+ 1] = 0;
2044 /* If duplicate options were deleted, fill up extra space with null ptrs. */
2048 bcopy (new, argv
, sizeof (char *) * argc
);
2055 DEFUN ("kill-emacs", Fkill_emacs
, Skill_emacs
, 0, 1, "P",
2056 doc
: /* Exit the Emacs job and kill it.
2057 If ARG is an integer, return ARG as the exit program code.
2058 If ARG is a string, stuff it as keyboard input.
2060 The value of `kill-emacs-hook', if not void,
2061 is a list of functions (of no args),
2062 all of which are called before Emacs is actually killed. */)
2066 struct gcpro gcpro1
;
2073 if (!NILP (Vrun_hooks
) && !noninteractive
)
2074 call1 (Vrun_hooks
, intern ("kill-emacs-hook"));
2078 /* Is it really necessary to do this deassign
2079 when we are going to exit anyway? */
2084 shut_down_emacs (0, 0, STRINGP (arg
) ? arg
: Qnil
);
2086 /* If we have an auto-save list file,
2087 kill it because we are exiting Emacs deliberately (not crashing).
2088 Do it after shut_down_emacs, which does an auto-save. */
2089 if (STRINGP (Vauto_save_list_file_name
))
2090 unlink (SDATA (Vauto_save_list_file_name
));
2092 exit (INTEGERP (arg
) ? XINT (arg
) : EXIT_SUCCESS
);
2098 /* Perform an orderly shutdown of Emacs. Autosave any modified
2099 buffers, kill any child processes, clean up the terminal modes (if
2100 we're in the foreground), and other stuff like that. Don't perform
2101 any redisplay; this may be called when Emacs is shutting down in
2102 the background, or after its X connection has died.
2104 If SIG is a signal number, print a message for it.
2106 This is called by fatal signal handlers, X protocol error handlers,
2110 shut_down_emacs (sig
, no_x
, stuff
)
2114 /* Prevent running of hooks from now on. */
2117 /* Don't update display from now on. */
2118 Vinhibit_redisplay
= Qt
;
2120 /* If we are controlling the terminal, reset terminal modes. */
2121 #ifdef EMACS_HAVE_TTY_PGRP
2123 int pgrp
= EMACS_GETPGRP (0);
2126 if (EMACS_GET_TTY_PGRP (0, &tpgrp
) != -1
2129 reset_all_sys_modes ();
2130 if (sig
&& sig
!= SIGTERM
)
2131 fprintf (stderr
, "Fatal error (%d)", sig
);
2136 reset_all_sys_modes ();
2139 stuff_buffered_input (stuff
);
2142 inhibit_sentinels
= 1;
2144 kill_buffer_processes (Qnil
);
2145 Fdo_auto_save (Qt
, Qnil
);
2147 #ifdef CLASH_DETECTION
2148 unlock_all_files ();
2152 kill_vms_processes ();
2155 #if 0 /* This triggers a bug in XCloseDisplay and is not needed. */
2156 #ifdef HAVE_X_WINDOWS
2157 /* It's not safe to call intern here. Maybe we are crashing. */
2158 if (!noninteractive
&& SYMBOLP (Vinitial_window_system
)
2159 && SCHARS (SYMBOL_NAME (Vinitial_window_system
)) == 1
2160 && SREF (SYMBOL_NAME (Vinitial_window_system
), 0) == 'x'
2162 Fx_close_current_connection ();
2163 #endif /* HAVE_X_WINDOWS */
2167 /* There is a tendency for a SIGIO signal to arrive within exit,
2168 and cause a SIGHUP because the input descriptor is already closed. */
2170 signal (SIGIO
, SIG_IGN
);
2177 /* Do this only if terminating normally, we want glyph matrices
2178 etc. in a core dump. */
2179 if (sig
== 0 || sig
== SIGTERM
)
2181 check_glyph_memory ();
2182 check_message_stack ();
2196 DEFUN ("dump-emacs-data", Fdump_emacs_data
, Sdump_emacs_data
, 1, 1, 0,
2197 doc
: /* Dump current state of Emacs into data file FILENAME.
2198 This function exists on systems that use HAVE_SHM. */)
2200 Lisp_Object filename
;
2202 extern char my_edata
[];
2206 CHECK_STRING (filename
);
2207 filename
= Fexpand_file_name (filename
, Qnil
);
2210 Vpurify_flag
= Qnil
;
2213 /* Tell malloc where start of impure now is. */
2214 /* Also arrange for warnings when nearly out of space. */
2215 #ifndef SYSTEM_MALLOC
2216 memory_warnings (my_edata
, malloc_warning
);
2218 map_out_data (SDATA (filename
));
2225 #else /* not HAVE_SHM */
2227 DEFUN ("dump-emacs", Fdump_emacs
, Sdump_emacs
, 2, 2, 0,
2228 doc
: /* Dump current state of Emacs into executable file FILENAME.
2229 Take symbols from SYMFILE (presumably the file you executed to run Emacs).
2230 This is used in the file `loadup.el' when building Emacs.
2232 You must run Emacs in batch mode in order to dump it. */)
2234 Lisp_Object filename
, symfile
;
2236 extern char my_edata
[];
2239 int count
= SPECPDL_INDEX ();
2243 if (! noninteractive
)
2244 error ("Dumping Emacs works only in batch mode");
2247 if (heap_bss_diff
> MAX_HEAP_BSS_DIFF
)
2249 fprintf (stderr
, "**************************************************\n");
2250 fprintf (stderr
, "Warning: Your system has a gap between BSS and the\n");
2251 fprintf (stderr
, "heap (%lu bytes). This usually means that exec-shield\n",
2253 fprintf (stderr
, "or something similar is in effect. The dump may\n");
2254 fprintf (stderr
, "fail because of this. See the section about\n");
2255 fprintf (stderr
, "exec-shield in etc/PROBLEMS for more information.\n");
2256 fprintf (stderr
, "**************************************************\n");
2258 #endif /* GNU_LINUX */
2260 /* Bind `command-line-processed' to nil before dumping,
2261 so that the dumped Emacs will process its command line
2262 and set up to work with X windows if appropriate. */
2263 symbol
= intern ("command-line-processed");
2264 specbind (symbol
, Qnil
);
2266 CHECK_STRING (filename
);
2267 filename
= Fexpand_file_name (filename
, Qnil
);
2268 if (!NILP (symfile
))
2270 CHECK_STRING (symfile
);
2271 if (SCHARS (symfile
))
2272 symfile
= Fexpand_file_name (symfile
, Qnil
);
2276 Vpurify_flag
= Qnil
;
2279 set_time_zone_rule (dump_tz
);
2280 #ifndef LOCALTIME_CACHE
2281 /* Force a tz reload, since set_time_zone_rule doesn't. */
2288 mapout_data (SDATA (filename
));
2290 /* Tell malloc where start of impure now is. */
2291 /* Also arrange for warnings when nearly out of space. */
2292 #ifndef SYSTEM_MALLOC
2294 /* On Windows, this was done before dumping, and that once suffices.
2295 Meanwhile, my_edata is not valid on Windows. */
2296 memory_warnings (my_edata
, malloc_warning
);
2297 #endif /* not WINDOWSNT */
2299 #if !defined (SYSTEM_MALLOC) && defined (HAVE_GTK_AND_PTHREAD) && !defined SYNC_INPUT
2300 /* Pthread may call malloc before main, and then we will get an endless
2301 loop, because pthread_self (see alloc.c) calls malloc the first time
2302 it is called on some systems. */
2303 reset_malloc_hooks ();
2305 #ifdef DOUG_LEA_MALLOC
2306 malloc_state_ptr
= malloc_get_state ();
2309 #ifdef USE_MMAP_FOR_BUFFERS
2312 unexec (SDATA (filename
),
2313 !NILP (symfile
) ? SDATA (symfile
) : 0, my_edata
, 0, 0);
2314 #ifdef USE_MMAP_FOR_BUFFERS
2317 #ifdef DOUG_LEA_MALLOC
2318 free (malloc_state_ptr
);
2320 #endif /* not VMS */
2324 return unbind_to (count
, Qnil
);
2327 #endif /* not HAVE_SHM */
2329 #endif /* not CANNOT_DUMP */
2332 /* Recover from setlocale (LC_ALL, ""). */
2336 /* The Emacs Lisp reader needs LC_NUMERIC to be "C",
2337 so that numbers are read and printed properly for Emacs Lisp. */
2338 setlocale (LC_NUMERIC
, "C");
2341 /* Set system locale CATEGORY, with previous locale *PLOCALE, to
2344 synchronize_locale (category
, plocale
, desired_locale
)
2346 Lisp_Object
*plocale
;
2347 Lisp_Object desired_locale
;
2349 if (! EQ (*plocale
, desired_locale
))
2351 *plocale
= desired_locale
;
2352 setlocale (category
, (STRINGP (desired_locale
)
2353 ? (char *) SDATA (desired_locale
)
2358 /* Set system time locale to match Vsystem_time_locale, if possible. */
2360 synchronize_system_time_locale ()
2362 synchronize_locale (LC_TIME
, &Vprevious_system_time_locale
,
2363 Vsystem_time_locale
);
2366 /* Set system messages locale to match Vsystem_messages_locale, if
2369 synchronize_system_messages_locale ()
2372 synchronize_locale (LC_MESSAGES
, &Vprevious_system_messages_locale
,
2373 Vsystem_messages_locale
);
2376 #endif /* HAVE_SETLOCALE */
2383 decode_env_path (evarname
, defalt
)
2384 char *evarname
, *defalt
;
2386 register char *path
, *p
;
2387 Lisp_Object lpath
, element
, tem
;
2389 /* It's okay to use getenv here, because this function is only used
2390 to initialize variables when Emacs starts up, and isn't called
2393 path
= (char *) getenv (evarname
);
2399 /* Ensure values from the environment use the proper directory separator. */
2402 p
= alloca (strlen (path
) + 1);
2406 if ('/' == DIRECTORY_SEP
)
2407 dostounix_filename (path
);
2409 unixtodos_filename (path
);
2415 p
= index (path
, SEPCHAR
);
2416 if (!p
) p
= path
+ strlen (path
);
2417 element
= (p
- path
? make_string (path
, p
- path
)
2418 : build_string ("."));
2420 /* Add /: to the front of the name
2421 if it would otherwise be treated as magic. */
2422 tem
= Ffind_file_name_handler (element
, Qt
);
2424 /* However, if the handler says "I'm safe",
2425 don't bother adding /:. */
2429 prop
= Fget (tem
, intern ("safe-magic"));
2435 element
= concat2 (build_string ("/:"), element
);
2437 lpath
= Fcons (element
, lpath
);
2443 return Fnreverse (lpath
);
2449 Qfile_name_handler_alist
= intern ("file-name-handler-alist");
2450 staticpro (&Qfile_name_handler_alist
);
2454 defsubr (&Sdump_emacs_data
);
2456 defsubr (&Sdump_emacs
);
2460 defsubr (&Skill_emacs
);
2462 defsubr (&Sinvocation_name
);
2463 defsubr (&Sinvocation_directory
);
2465 DEFVAR_LISP ("command-line-args", &Vcommand_line_args
,
2466 doc
: /* Args passed by shell to Emacs, as a list of strings.
2467 Many arguments are deleted from the list as they are processed. */);
2469 DEFVAR_LISP ("system-type", &Vsystem_type
,
2470 doc
: /* Value is symbol indicating type of operating system you are using.
2472 `gnu/linux' compiled for a GNU/Linux system.
2473 `darwin' compiled for Darwin (GNU-Darwin, Mac OS X, ...).
2474 `macos' compiled for Mac OS 9.
2475 `ms-dos' compiled as an MS-DOS application.
2476 `windows-nt' compiled as a native W32 application.
2477 `cygwin' compiled using the Cygwin library.
2479 `axp-vms' compiled for a (Open)VMS system.
2480 Anything else indicates some sort of Unix system. */);
2481 Vsystem_type
= intern (SYSTEM_TYPE
);
2483 DEFVAR_LISP ("system-configuration", &Vsystem_configuration
,
2484 doc
: /* Value is string indicating configuration Emacs was built for.
2485 On MS-Windows, the value reflects the OS flavor and version on which
2486 Emacs is running. */);
2487 Vsystem_configuration
= build_string (EMACS_CONFIGURATION
);
2489 DEFVAR_LISP ("system-configuration-options", &Vsystem_configuration_options
,
2490 doc
: /* String containing the configuration options Emacs was built with. */);
2491 Vsystem_configuration_options
= build_string (EMACS_CONFIG_OPTIONS
);
2493 DEFVAR_BOOL ("noninteractive", &noninteractive1
,
2494 doc
: /* Non-nil means Emacs is running without interactive terminal. */);
2496 DEFVAR_LISP ("kill-emacs-hook", &Vkill_emacs_hook
,
2497 doc
: /* Hook to be run when `kill-emacs' is called.
2498 Since `kill-emacs' may be invoked when the terminal is disconnected (or
2499 in other similar situations), functions placed on this hook should not
2500 expect to be able to interact with the user. To ask for confirmation,
2501 see `kill-emacs-query-functions' instead.
2503 The hook is not run in batch mode, i.e., if `noninteractive' is non-nil. */);
2504 Vkill_emacs_hook
= Qnil
;
2506 DEFVAR_INT ("emacs-priority", &emacs_priority
,
2507 doc
: /* Priority for Emacs to run at.
2508 This value is effective only if set before Emacs is dumped,
2509 and only if the Emacs executable is installed with setuid to permit
2510 it to change priority. (Emacs sets its uid back to the real uid.)
2511 Currently, you need to define SET_EMACS_PRIORITY in `config.h'
2512 before you compile Emacs, to enable the code for this feature. */);
2515 DEFVAR_LISP ("path-separator", &Vpath_separator
,
2516 doc
: /* String containing the character that separates directories in
2517 search paths, such as PATH and other similar environment variables. */);
2520 Vpath_separator
= make_string (&c
, 1);
2523 DEFVAR_LISP ("invocation-name", &Vinvocation_name
,
2524 doc
: /* The program name that was used to run Emacs.
2525 Any directory names are omitted. */);
2527 DEFVAR_LISP ("invocation-directory", &Vinvocation_directory
,
2528 doc
: /* The directory in which the Emacs executable was found, to run it.
2529 The value is nil if that directory's name is not known. */);
2531 DEFVAR_LISP ("installation-directory", &Vinstallation_directory
,
2532 doc
: /* A directory within which to look for the `lib-src' and `etc' directories.
2533 This is non-nil when we can't find those directories in their standard
2534 installed locations, but we can find them near where the Emacs executable
2536 Vinstallation_directory
= Qnil
;
2538 DEFVAR_LISP ("system-messages-locale", &Vsystem_messages_locale
,
2539 doc
: /* System locale for messages. */);
2540 Vsystem_messages_locale
= Qnil
;
2542 DEFVAR_LISP ("previous-system-messages-locale",
2543 &Vprevious_system_messages_locale
,
2544 doc
: /* Most recently used system locale for messages. */);
2545 Vprevious_system_messages_locale
= Qnil
;
2547 DEFVAR_LISP ("system-time-locale", &Vsystem_time_locale
,
2548 doc
: /* System locale for time. */);
2549 Vsystem_time_locale
= Qnil
;
2551 DEFVAR_LISP ("previous-system-time-locale", &Vprevious_system_time_locale
,
2552 doc
: /* Most recently used system locale for time. */);
2553 Vprevious_system_time_locale
= Qnil
;
2556 /* arch-tag: 7bfd356a-c720-4612-8ab6-aa4222931c2e
2557 (do not change this comment) */