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 Free Software Foundation, Inc.
5 This file is part of GNU Emacs.
7 GNU Emacs is free software; you can redistribute it and/or modify
8 it under the terms of the GNU General Public License as published by
9 the Free Software Foundation; either version 3, or (at your option)
12 GNU Emacs is distributed in the hope that it will be useful,
13 but WITHOUT ANY WARRANTY; without even the implied warranty of
14 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
15 GNU General Public License for more details.
17 You should have received a copy of the GNU General Public License
18 along with GNU Emacs; see the file COPYING. If not, write to
19 the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
20 Boston, MA 02110-1301, USA. */
28 #include <sys/types.h>
40 #include <sys/ioctl.h>
45 #include <windows.h> /* just for w32.h */
47 #include "w32heap.h" /* for prototype of sbrk */
52 #include "intervals.h"
57 #include "blockinput.h"
58 #include "syssignal.h"
60 #include "termhooks.h"
70 #include <sys/resource.h>
73 #ifdef HAVE_PERSONALITY_LINUX32
74 #include <sys/personality.h>
82 #if !defined (USG) || defined (BSD_PGRPS)
84 #define setpgrp setpgid
88 extern void malloc_warning
P_ ((char *));
89 extern void set_time_zone_rule
P_ ((char *));
91 extern char *index
P_ ((const char *, int));
94 /* Make these values available in GDB, which doesn't see macros. */
102 int gdb_use_union
= 0;
104 int gdb_use_union
= 1;
106 EMACS_INT gdb_valbits
= VALBITS
;
107 EMACS_INT gdb_gctypebits
= GCTYPEBITS
;
109 EMACS_INT gdb_data_seg_bits
= DATA_SEG_BITS
;
111 EMACS_INT gdb_data_seg_bits
= 0;
113 EMACS_INT PVEC_FLAG
= PSEUDOVECTOR_FLAG
;
114 EMACS_INT gdb_array_mark_flag
= ARRAY_MARK_FLAG
;
115 /* GDB might say "No enum type named pvec_type" if we don't have at
116 least one symbol with that type, and then xbacktrace could fail. */
117 enum pvec_type gdb_pvec_type
= PVEC_TYPE_MASK
;
119 /* Command line args from shell, as list of strings. */
120 Lisp_Object Vcommand_line_args
;
122 /* The name under which Emacs was invoked, with any leading directory
124 Lisp_Object Vinvocation_name
;
126 /* The directory name from which Emacs was invoked. */
127 Lisp_Object Vinvocation_directory
;
129 /* The directory name in which to find subdirs such as lisp and etc.
130 nil means get them only from PATH_LOADSEARCH. */
131 Lisp_Object Vinstallation_directory
;
133 /* Hook run by `kill-emacs' before it does really anything. */
134 Lisp_Object Vkill_emacs_hook
;
136 /* Empty lisp strings. To avoid having to build any others. */
137 Lisp_Object empty_unibyte_string
, empty_multibyte_string
;
139 /* Search path separator. */
140 Lisp_Object Vpath_separator
;
142 /* Set nonzero after Emacs has started up the first time.
143 Prevents reinitialization of the Lisp world and keymaps
144 on subsequent starts. */
147 #ifdef DOUG_LEA_MALLOC
148 /* Preserves a pointer to the memory allocated that copies that
149 static data inside glibc's malloc. */
150 void *malloc_state_ptr
;
151 /* From glibc, a routine that returns a copy of the malloc internal state. */
152 extern void *malloc_get_state ();
153 /* From glibc, a routine that overwrites the malloc internal state. */
154 extern int malloc_set_state ();
155 /* Non-zero if the MALLOC_CHECK_ enviroment variable was set while
156 dumping. Used to work around a bug in glibc's malloc. */
157 int malloc_using_checking
;
160 /* Variable whose value is symbol giving operating system type. */
161 Lisp_Object Vsystem_type
;
163 /* Variable whose value is string giving configuration built for. */
164 Lisp_Object Vsystem_configuration
;
166 /* Variable whose value is string giving configuration options,
167 for use when reporting bugs. */
168 Lisp_Object Vsystem_configuration_options
;
170 Lisp_Object Qfile_name_handler_alist
;
172 /* Current and previous system locales for messages and time. */
173 Lisp_Object Vsystem_messages_locale
;
174 Lisp_Object Vprevious_system_messages_locale
;
175 Lisp_Object Vsystem_time_locale
;
176 Lisp_Object Vprevious_system_time_locale
;
178 /* If non-zero, emacs should not attempt to use a window-specific code,
179 but instead should use the virtual terminal under which it was started. */
180 int inhibit_window_system
;
182 /* If nonzero, set Emacs to run at this priority. This is also used
183 in child_setup and sys_suspend to make sure subshells run at normal
184 priority; those functions have their own extern declaration. */
185 EMACS_INT emacs_priority
;
187 /* If non-zero, a filter or a sentinel is running. Tested to save the match
188 data on the first attempt to change it inside asynchronous code. */
189 int running_asynch_code
;
193 extern int inherited_pgroup
;
196 #ifdef HAVE_X_WINDOWS
197 /* If non-zero, -d was specified, meaning we're using some window system. */
201 /* An address near the bottom of the stack.
202 Tells GC how to save a copy of the stack. */
205 /* The address where the heap starts (from the first sbrk (0) call). */
206 static void *my_heap_start
;
208 /* The gap between BSS end and heap start as far as we can tell. */
209 static unsigned long heap_bss_diff
;
211 /* If the gap between BSS end and heap start is larger than this we try to
212 work around it, and if that fails, output a warning in dump-emacs. */
213 #define MAX_HEAP_BSS_DIFF (1024*1024)
216 #ifdef HAVE_WINDOW_SYSTEM
217 extern Lisp_Object Vwindow_system
;
218 #endif /* HAVE_WINDOW_SYSTEM */
220 extern Lisp_Object Vauto_save_list_file_name
;
222 extern Lisp_Object Vinhibit_redisplay
;
224 #ifdef USG_SHARED_LIBRARIES
225 /* If nonzero, this is the place to put the end of the writable segment
228 unsigned int bss_end
= 0;
231 /* Nonzero means running Emacs without interactive terminal. */
235 /* Value of Lisp variable `noninteractive'.
236 Normally same as C variable `noninteractive'
237 but nothing terrible happens if user sets this one. */
241 /* Save argv and argc. */
245 static void sort_args ();
246 void syms_of_emacs ();
248 /* MSVC needs each string be shorter than 2048 bytes, so the usage
249 strings below are split to not overflow this limit. */
251 Usage: %s [OPTION-OR-FILENAME]...\n\
253 Run Emacs, the extensible, customizable, self-documenting real-time\n\
254 display editor. The recommended way to start Emacs for normal editing\n\
255 is with no options at all.\n\
257 Run M-x info RET m emacs RET m emacs invocation RET inside Emacs to\n\
258 read the main documentation for these command-line arguments.\n\
260 Initialization options:\n\
262 --batch do not do interactive display; implies -q\n\
263 --debug-init enable Emacs Lisp debugger for init file\n\
264 --display, -d DISPLAY use X server DISPLAY\n\
265 --multibyte, --no-unibyte inhibit the effect of EMACS_UNIBYTE\n\
266 --no-desktop do not load a saved desktop\n\
267 --no-init-file, -q load neither ~/.emacs nor default.el\n\
268 --no-shared-memory, -nl do not use shared memory\n\
269 --no-site-file do not load site-start.el\n\
270 --no-splash do not display a splash screen on startup\n\
271 --no-window-system, -nw do not communicate with X, ignoring $DISPLAY\n\
272 --quick, -Q equivalent to -q --no-site-file --no-splash\n\
273 --script FILE run FILE as an Emacs Lisp script\n\
274 --terminal, -t DEVICE use DEVICE for terminal I/O\n\
275 --unibyte, --no-multibyte run Emacs in unibyte mode\n\
276 --user, -u USER load ~USER/.emacs instead of your own\n\
282 FILE visit FILE using find-file\n\
283 +LINE FILE visit FILE using find-file, then go to line LINE\n\
284 +LINE:COLUMN FILE visit FILE using find-file, then go to line LINE,\n\
286 --directory, -L DIR add DIR to variable load-path\n\
287 --eval EXPR evaluate Emacs Lisp expression EXPR\n\
288 --execute EXPR evaluate Emacs Lisp expression EXPR\n\
289 --file FILE visit FILE using find-file\n\
290 --find-file FILE visit FILE using find-file\n\
291 --funcall, -f FUNC call Emacs Lisp function FUNC with no arguments\n\
292 --insert FILE insert contents of FILE into current buffer\n\
293 --kill exit without asking for confirmation\n\
294 --load, -l FILE load Emacs Lisp FILE using the load function\n\
295 --visit FILE visit FILE using find-file\n\
301 --background-color, -bg COLOR window background color\n\
302 --basic-display, -D disable many display features;\n\
303 used for debugging Emacs\n\
304 --border-color, -bd COLOR main border color\n\
305 --border-width, -bw WIDTH width of main border\n\
306 --color, --color=MODE override color mode for character terminals;\n\
307 MODE defaults to `auto', and can also\n\
308 be `never', `auto', `always',\n\
309 or a mode name like `ansi8'\n\
310 --cursor-color, -cr COLOR color of the Emacs cursor indicating point\n\
311 --font, -fn FONT default font; must be fixed-width\n\
312 --foreground-color, -fg COLOR window foreground color\n\
313 --fullheight, -fh make the first frame high as the screen\n\
314 --fullscreen, -fs make first frame fullscreen\n\
315 --fullwidth, -fw make the first frame wide as the screen\n\
316 --geometry, -g GEOMETRY window geometry\n\
317 --no-bitmap-icon, -nbi do not use picture of gnu for Emacs icon\n\
318 --iconic start Emacs in iconified state\n\
319 --internal-border, -ib WIDTH width between text and main border\n\
320 --line-spacing, -lsp PIXELS additional space to put between lines\n\
321 --mouse-color, -ms COLOR mouse cursor color in Emacs window\n\
322 --name NAME title for initial Emacs frame\n\
323 --no-blinking-cursor, -nbc disable blinking cursor\n\
324 --reverse-video, -r, -rv switch foreground and background\n\
325 --title, -T TITLE title for initial Emacs frame\n\
326 --vertical-scroll-bars, -vb enable vertical scroll bars\n\
327 --xrm XRESOURCES set additional X resources\n\
328 --help display this help and exit\n\
329 --version output version information and exit\n\
333 You can generally also specify long option names with a single -; for\n\
334 example, -batch as well as --batch. You can use any unambiguous\n\
335 abbreviation for a --option.\n\
337 Various environment variables and window system resources also affect\n\
338 Emacs' operation. See the main documentation.\n\
340 Report bugs to %s. First, please see the Bugs\n\
341 section of the Emacs manual or the file BUGS.\n"
344 /* Signal code for the fatal signal that was received. */
345 int fatal_error_code
;
347 /* Nonzero if handling a fatal error already. */
348 int fatal_error_in_progress
;
350 /* If non-null, call this function from fatal_error_signal before
351 committing suicide. */
353 void (*fatal_error_signal_hook
) P_ ((void));
355 #ifdef HAVE_GTK_AND_PTHREAD
356 /* When compiled with GTK and running under Gnome, multiple threads meay be
357 created. Keep track of our main thread to make sure signals are delivered
358 to it (see syssignal.h). */
360 pthread_t main_thread
;
364 /* Handle bus errors, invalid instruction, etc. */
366 fatal_error_signal (sig
)
369 SIGNAL_THREAD_CHECK (sig
);
370 fatal_error_code
= sig
;
371 signal (sig
, SIG_DFL
);
373 TOTALLY_UNBLOCK_INPUT
;
375 /* If fatal error occurs in code below, avoid infinite recursion. */
376 if (! fatal_error_in_progress
)
378 fatal_error_in_progress
= 1;
380 shut_down_emacs (sig
, 0, Qnil
);
384 LIB$
STOP (SS$_ABORT
);
386 /* Signal the same code; this time it will really be fatal.
387 Remember that since we're in a signal handler, the signal we're
388 going to send is probably blocked, so we have to unblock it if we
389 want to really receive it. */
391 sigunblock (sigmask (fatal_error_code
));
394 if (fatal_error_signal_hook
)
395 fatal_error_signal_hook ();
397 kill (getpid (), fatal_error_code
);
403 /* Handler for SIGDANGER. */
405 memory_warning_signal (sig
)
408 signal (sig
, memory_warning_signal
);
409 SIGNAL_THREAD_CHECK (sig
);
411 malloc_warning ("Operating system warns that virtual memory is running low.\n");
413 /* It might be unsafe to call do_auto_save now. */
414 force_auto_save_soon ();
418 /* We define abort, rather than using it from the library,
419 so that GDB can return from a breakpoint here.
420 MSDOS has its own definition in msdos.c. */
422 #if ! defined (DOS_NT) && ! defined (NO_ABORT)
424 #ifndef ABORT_RETURN_TYPE
425 #define ABORT_RETURN_TYPE void
431 kill (getpid (), SIGABRT
);
432 /* This shouldn't be executed, but it prevents a warning. */
438 /* Code for dealing with Lisp access to the Unix command line. */
441 init_cmdargs (argc
, argv
, skip_args
)
447 Lisp_Object name
, dir
, tem
;
448 int count
= SPECPDL_INDEX ();
449 Lisp_Object raw_name
;
454 raw_name
= build_string (argv
[0]);
456 /* Add /: to the front of the name
457 if it would otherwise be treated as magic. */
458 tem
= Ffind_file_name_handler (raw_name
, Qt
);
460 raw_name
= concat2 (build_string ("/:"), raw_name
);
462 Vinvocation_name
= Ffile_name_nondirectory (raw_name
);
463 Vinvocation_directory
= Ffile_name_directory (raw_name
);
465 /* If we got no directory in argv[0], search PATH to find where
466 Emacs actually came from. */
467 if (NILP (Vinvocation_directory
))
470 int yes
= openp (Vexec_path
, Vinvocation_name
,
471 Vexec_suffixes
, &found
, make_number (X_OK
));
474 /* Add /: to the front of the name
475 if it would otherwise be treated as magic. */
476 tem
= Ffind_file_name_handler (found
, Qt
);
478 found
= concat2 (build_string ("/:"), found
);
479 Vinvocation_directory
= Ffile_name_directory (found
);
483 if (!NILP (Vinvocation_directory
)
484 && NILP (Ffile_name_absolute_p (Vinvocation_directory
)))
485 /* Emacs was started with relative path, like ./emacs.
487 Vinvocation_directory
= Fexpand_file_name (Vinvocation_directory
, Qnil
);
489 Vinstallation_directory
= Qnil
;
491 if (!NILP (Vinvocation_directory
))
493 dir
= Vinvocation_directory
;
494 name
= Fexpand_file_name (Vinvocation_name
, dir
);
497 Lisp_Object tem
, lib_src_exists
;
498 Lisp_Object etc_exists
, info_exists
;
500 /* See if dir contains subdirs for use by Emacs.
501 Check for the ones that would exist in a build directory,
502 not including lisp and info. */
503 tem
= Fexpand_file_name (build_string ("lib-src"), dir
);
504 lib_src_exists
= Ffile_exists_p (tem
);
507 /* MSDOS installations frequently remove lib-src, but we still
508 must set installation-directory, or else info won't find
509 its files (it uses the value of installation-directory). */
510 tem
= Fexpand_file_name (build_string ("info"), dir
);
511 info_exists
= Ffile_exists_p (tem
);
516 if (!NILP (lib_src_exists
) || !NILP (info_exists
))
518 tem
= Fexpand_file_name (build_string ("etc"), dir
);
519 etc_exists
= Ffile_exists_p (tem
);
520 if (!NILP (etc_exists
))
522 Vinstallation_directory
523 = Ffile_name_as_directory (dir
);
528 /* See if dir's parent contains those subdirs. */
529 tem
= Fexpand_file_name (build_string ("../lib-src"), dir
);
530 lib_src_exists
= Ffile_exists_p (tem
);
534 /* See the MSDOS commentary above. */
535 tem
= Fexpand_file_name (build_string ("../info"), dir
);
536 info_exists
= Ffile_exists_p (tem
);
541 if (!NILP (lib_src_exists
) || !NILP (info_exists
))
543 tem
= Fexpand_file_name (build_string ("../etc"), dir
);
544 etc_exists
= Ffile_exists_p (tem
);
545 if (!NILP (etc_exists
))
547 tem
= Fexpand_file_name (build_string (".."), dir
);
548 Vinstallation_directory
549 = Ffile_name_as_directory (tem
);
554 /* If the Emacs executable is actually a link,
555 next try the dir that the link points into. */
556 tem
= Ffile_symlink_p (name
);
559 name
= Fexpand_file_name (tem
, dir
);
560 dir
= Ffile_name_directory (name
);
567 Vcommand_line_args
= Qnil
;
569 for (i
= argc
- 1; i
>= 0; i
--)
571 if (i
== 0 || i
> skip_args
)
572 /* For the moment, we keep arguments as is in unibyte strings.
573 They are decoded in the function command-line after we know
574 locale-coding-system. */
576 = Fcons (make_unibyte_string (argv
[i
], strlen (argv
[i
])),
580 unbind_to (count
, Qnil
);
583 DEFUN ("invocation-name", Finvocation_name
, Sinvocation_name
, 0, 0, 0,
584 doc
: /* Return the program name that was used to run Emacs.
585 Any directory names are omitted. */)
588 return Fcopy_sequence (Vinvocation_name
);
591 DEFUN ("invocation-directory", Finvocation_directory
, Sinvocation_directory
,
593 doc
: /* Return the directory name in which the Emacs executable was located. */)
596 return Fcopy_sequence (Vinvocation_directory
);
601 #ifdef LINK_CRTL_SHARE
602 #ifdef SHARABLE_LIB_BUG
603 extern noshare
char **environ
;
604 #endif /* SHARABLE_LIB_BUG */
605 #endif /* LINK_CRTL_SHARE */
609 /* A valid but unlikely value for the TZ environment value.
610 It is OK (though a bit slower) if the user actually chooses this value. */
611 static char dump_tz
[] = "UtC0";
614 #ifndef ORDINARY_LINK
615 /* We don't include crtbegin.o and crtend.o in the link,
616 so these functions and variables might be missed.
617 Provide dummy definitions to avoid error.
618 (We don't have any real constructors or destructors.) */
620 #ifndef GCC_CTORS_IN_LIBC
621 void __do_global_ctors ()
623 void __do_global_ctors_aux ()
625 void __do_global_dtors ()
627 /* GNU/Linux has a bug in its library; avoid an error. */
629 char * __CTOR_LIST__
[2] = { (char *) (-1), 0 };
631 char * __DTOR_LIST__
[2] = { (char *) (-1), 0 };
632 #endif /* GCC_CTORS_IN_LIBC */
635 #endif /* __GNUC__ */
636 #endif /* ORDINARY_LINK */
638 /* Test whether the next argument in ARGV matches SSTR or a prefix of
639 LSTR (at least MINLEN characters). If so, then if VALPTR is non-null
640 (the argument is supposed to have a value) store in *VALPTR either
641 the next argument or the portion of this one after the equal sign.
642 ARGV is read starting at position *SKIPPTR; this index is advanced
643 by the number of arguments used.
645 Too bad we can't just use getopt for all of this, but we don't have
646 enough information to do it right. */
649 argmatch (argv
, argc
, sstr
, lstr
, minlen
, valptr
, skipptr
)
662 /* Don't access argv[argc]; give up in advance. */
663 if (argc
<= *skipptr
+ 1)
666 arg
= argv
[*skipptr
+1];
669 if (strcmp (arg
, sstr
) == 0)
673 *valptr
= argv
[*skipptr
+2];
680 arglen
= (valptr
!= NULL
&& (p
= index (arg
, '=')) != NULL
681 ? p
- arg
: strlen (arg
));
682 if (lstr
== 0 || arglen
< minlen
|| strncmp (arg
, lstr
, arglen
) != 0)
684 else if (valptr
== NULL
)
695 else if (argv
[*skipptr
+2] != NULL
)
697 *valptr
= argv
[*skipptr
+2];
707 #ifdef DOUG_LEA_MALLOC
709 /* malloc can be invoked even before main (e.g. by the dynamic
710 linker), so the dumped malloc state must be restored as early as
711 possible using this special hook. */
714 malloc_initialize_hook ()
717 extern char **environ
;
722 if (!malloc_using_checking
)
723 /* Work around a bug in glibc's malloc. MALLOC_CHECK_ must be
724 ignored if the heap to be restored was constructed without
725 malloc checking. Can't use unsetenv, since that calls malloc. */
729 for (p
= environ
; p
&& *p
; p
++)
730 if (strncmp (*p
, "MALLOC_CHECK_=", 14) == 0)
739 malloc_set_state (malloc_state_ptr
);
740 #ifndef XMALLOC_OVERRUN_CHECK
741 free (malloc_state_ptr
);
746 if (my_heap_start
== 0)
747 my_heap_start
= sbrk (0);
748 malloc_using_checking
= getenv ("MALLOC_CHECK_") != NULL
;
752 void (*__malloc_initialize_hook
) () = malloc_initialize_hook
;
754 #endif /* DOUG_LEA_MALLOC */
757 #define REPORT_EMACS_BUG_ADDRESS "bug-gnu-emacs@gnu.org"
758 #define REPORT_EMACS_BUG_PRETEST_ADDRESS "emacs-pretest-bug@gnu.org"
760 /* This function is used to determine an address to which bug report should
764 bug_reporting_address ()
770 temp
= Fsymbol_value (intern ("emacs-version"));
772 /* When `emacs-version' is invalid, use normal address. */
774 return REPORT_EMACS_BUG_ADDRESS
;
776 string
= SDATA (temp
);
778 /* Count dots in `emacs-version'. */
786 /* When `emacs-version' has at least three dots, it is development or
787 pretest version of Emacs. */
788 return count
>= 3 ? REPORT_EMACS_BUG_PRETEST_ADDRESS
: REPORT_EMACS_BUG_ADDRESS
;
808 char stack_bottom_variable
;
809 int do_initial_setlocale
;
814 #ifdef HAVE_SETRLIMIT
821 extern Lisp_Object
*stack_base
;
827 extern char my_endbss
[];
828 extern char *my_endbss_static
;
830 if (my_heap_start
== 0)
831 my_heap_start
= sbrk (0);
833 heap_bss_diff
= (char *)my_heap_start
- max (my_endbss
, my_endbss_static
);
836 #ifdef LINUX_SBRK_BUG
840 #ifdef RUN_TIME_REMAP
842 run_time_remap (argv
[0]);
847 unexec_init_emacs_zone ();
850 sort_args (argc
, argv
);
852 while (argv
[argc
]) argc
++;
854 if (argmatch (argv
, argc
, "-version", "--version", 3, NULL
, &skip_args
)
855 /* We don't know the version number unless this is a dumped Emacs.
856 So ignore --version otherwise. */
859 Lisp_Object tem
, tem2
;
860 tem
= Fsymbol_value (intern ("emacs-version"));
861 tem2
= Fsymbol_value (intern ("emacs-copyright"));
864 fprintf (stderr
, "Invalid value of `emacs-version'\n");
869 fprintf (stderr
, "Invalid value of `emacs-copyright'\n");
874 printf ("GNU Emacs %s\n", SDATA (tem
));
875 printf ("%s\n", SDATA(tem2
));
876 printf ("GNU Emacs comes with ABSOLUTELY NO WARRANTY.\n");
877 printf ("You may redistribute copies of Emacs\n");
878 printf ("under the terms of the GNU General Public License.\n");
879 printf ("For more information about these matters, ");
880 printf ("see the file named COPYING.\n");
885 #ifdef HAVE_PERSONALITY_LINUX32
886 /* See if there is a gap between the end of BSS and the heap.
887 In that case, set personality and exec ourself again. */
889 && (strcmp (argv
[argc
-1], "dump") == 0
890 || strcmp (argv
[argc
-1], "bootstrap") == 0)
891 && heap_bss_diff
> MAX_HEAP_BSS_DIFF
)
893 if (! getenv ("EMACS_HEAP_EXEC"))
895 /* Set this so we only do this once. */
896 putenv("EMACS_HEAP_EXEC=true");
898 /* A flag to turn off address randomization which is introduced
899 in linux kernel shipped with fedora core 4 */
900 #define ADD_NO_RANDOMIZE 0x0040000
901 personality (PER_LINUX32
| ADD_NO_RANDOMIZE
);
902 #undef ADD_NO_RANDOMIZE
904 execvp (argv
[0], argv
);
906 /* If the exec fails, try to dump anyway. */
910 #endif /* HAVE_PERSONALITY_LINUX32 */
913 /* Map in shared memory, if we are using that. */
915 if (argmatch (argv
, argc
, "-nl", "--no-shared-memory", 6, NULL
, &skip_args
))
918 /* The shared memory was just restored, which clobbered this. */
924 /* The shared memory was just restored, which clobbered this. */
931 extern int malloc_cookie
;
932 /* This helps out unexnext.c. */
934 if (malloc_jumpstart (malloc_cookie
) != 0)
935 printf ("malloc jumpstart failed!\n");
940 /* Skip process serial number passed in the form -psn_x_y as
941 command-line argument. The WindowServer adds this option when
942 Emacs is invoked from the Finder or by the `open' command. In
943 these cases, the working directory becomes `/', so we change it
944 to the user's home directory. */
945 if (argc
> skip_args
+ 1 && strncmp (argv
[skip_args
+1], "-psn_", 5) == 0)
947 chdir (getenv ("HOME"));
953 /* If -map specified, map the data file in. */
956 if (argmatch (argv
, argc
, "-map", "--map-data", 3, &file
, &skip_args
))
960 #ifdef LINK_CRTL_SHARE
961 #ifdef SHARABLE_LIB_BUG
962 /* Bletcherous shared libraries! */
964 stdin
= fdopen (0, "r");
966 stdout
= fdopen (1, "w");
968 stderr
= fdopen (2, "w");
971 #endif /* SHARABLE_LIB_BUG */
972 #endif /* LINK_CRTL_SHARE */
975 #if defined (HAVE_SETRLIMIT) && defined (RLIMIT_STACK)
976 /* Extend the stack space available.
977 Don't do that if dumping, since some systems (e.g. DJGPP)
978 might define a smaller stack limit at that time. */
981 && (!noninteractive
|| initialized
)
983 && !getrlimit (RLIMIT_STACK
, &rlim
))
986 extern size_t re_max_failures
;
987 /* Approximate the amount regex.c needs per unit of re_max_failures. */
988 int ratio
= 20 * sizeof (char *);
989 /* Then add 33% to cover the size of the smaller stacks that regex.c
990 successively allocates and discards, on its way to the maximum. */
992 /* Add in some extra to cover
993 what we're likely to use for other reasons. */
994 newlim
= re_max_failures
* ratio
+ 200000;
996 /* NetBSD (at least NetBSD 1.2G and former) has a bug in its
997 stack allocation routine for new process that the allocation
998 fails if stack limit is not on page boundary. So, round up the
999 new limit to page boundary. */
1000 newlim
= (newlim
+ getpagesize () - 1) / getpagesize () * getpagesize();
1002 if (newlim
> rlim
.rlim_max
)
1004 newlim
= rlim
.rlim_max
;
1005 /* Don't let regex.c overflow the stack we have. */
1006 re_max_failures
= (newlim
- 200000) / ratio
;
1008 if (rlim
.rlim_cur
< newlim
)
1009 rlim
.rlim_cur
= newlim
;
1011 setrlimit (RLIMIT_STACK
, &rlim
);
1013 #endif /* HAVE_SETRLIMIT and RLIMIT_STACK */
1015 /* Record (approximately) where the stack begins. */
1016 stack_bottom
= &stack_bottom_variable
;
1018 #ifdef USG_SHARED_LIBRARIES
1020 brk ((void *)bss_end
);
1025 #ifndef SYSTEM_MALLOC
1026 /* Arrange to get warning messages as memory fills up. */
1027 memory_warnings (0, malloc_warning
);
1029 /* Call malloc at least once, to run the initial __malloc_hook.
1030 Also call realloc and free for consistency. */
1031 free (realloc (malloc (4), 4));
1034 /* Arrange to disable interrupt input inside malloc etc. */
1035 uninterrupt_malloc ();
1036 # endif /* not SYNC_INPUT */
1037 #endif /* not SYSTEM_MALLOC */
1039 #ifdef HAVE_GTK_AND_PTHREAD
1040 main_thread
= pthread_self ();
1041 #endif /* HAVE_GTK_AND_PTHREAD */
1043 #if defined (MSDOS) || defined (WINDOWSNT)
1044 /* We do all file input/output as binary files. When we need to translate
1045 newlines, we do that manually. */
1047 #endif /* MSDOS || WINDOWSNT */
1051 if (!isatty (fileno (stdin
)))
1052 setmode (fileno (stdin
), O_BINARY
);
1053 if (!isatty (fileno (stdout
)))
1056 setmode (fileno (stdout
), O_BINARY
);
1058 #else /* not __DJGPP__ >= 2 */
1059 (stdin
)->_flag
&= ~_IOTEXT
;
1060 (stdout
)->_flag
&= ~_IOTEXT
;
1061 (stderr
)->_flag
&= ~_IOTEXT
;
1062 #endif /* not __DJGPP__ >= 2 */
1065 #ifdef SET_EMACS_PRIORITY
1067 nice (emacs_priority
);
1069 #endif /* SET_EMACS_PRIORITY */
1071 /* Skip initial setlocale if LC_ALL is "C", as it's not needed in that case.
1072 The build procedure uses this while dumping, to ensure that the
1073 dumped Emacs does not have its system locale tables initialized,
1074 as that might cause screwups when the dumped Emacs starts up. */
1076 char *lc_all
= getenv ("LC_ALL");
1077 do_initial_setlocale
= ! lc_all
|| strcmp (lc_all
, "C");
1080 /* Set locale now, so that initial error messages are localized properly.
1081 fixup_locale must wait until later, since it builds strings. */
1082 if (do_initial_setlocale
)
1083 setlocale (LC_ALL
, "");
1085 #ifdef EXTRA_INITIALIZE
1089 inhibit_window_system
= 0;
1091 /* Handle the -t switch, which specifies filename to use as terminal. */
1095 if (argmatch (argv
, argc
, "-t", "--terminal", 4, &term
, &skip_args
))
1100 result
= emacs_open (term
, O_RDWR
, 0);
1103 char *errstring
= strerror (errno
);
1104 fprintf (stderr
, "%s: %s: %s\n", argv
[0], term
, errstring
);
1110 fprintf (stderr
, "%s: %s: not a tty\n", argv
[0], term
);
1113 fprintf (stderr
, "Using %s\n", term
);
1114 #ifdef HAVE_WINDOW_SYSTEM
1115 inhibit_window_system
= 1; /* -t => -nw */
1122 /* Command line option --no-windows is deprecated and thus not mentioned
1123 in the manual and usage informations. */
1124 if (argmatch (argv
, argc
, "-nw", "--no-window-system", 6, NULL
, &skip_args
)
1125 || argmatch (argv
, argc
, "-nw", "--no-windows", 6, NULL
, &skip_args
))
1126 inhibit_window_system
= 1;
1128 /* Handle the -batch switch, which means don't do interactive display. */
1130 if (argmatch (argv
, argc
, "-batch", "--batch", 5, NULL
, &skip_args
))
1133 Vundo_outer_limit
= Qnil
;
1135 if (argmatch (argv
, argc
, "-script", "--script", 3, &junk
, &skip_args
))
1137 noninteractive
= 1; /* Set batch mode. */
1138 /* Convert --script to --scriptload, un-skip it, and sort again
1139 so that it will be handled in proper sequence. */
1140 argv
[skip_args
- 1] = "-scriptload";
1142 sort_args (argc
, argv
);
1145 /* Handle the --help option, which gives a usage message. */
1146 if (argmatch (argv
, argc
, "-help", "--help", 3, NULL
, &skip_args
))
1148 printf (USAGE1
, argv
[0], USAGE2
);
1150 printf (USAGE4
, bug_reporting_address ());
1154 if (! noninteractive
)
1159 inherited_pgroup
= EMACS_GETPGRP (0);
1160 setpgrp (0, getpid ());
1163 #if defined (USG5) && defined (INTERRUPT_INPUT)
1167 #if defined (HAVE_GTK_AND_PTHREAD) && !defined (SYSTEM_MALLOC) && !defined (DOUG_LEA_MALLOC)
1169 extern void malloc_enable_thread
P_ ((void));
1171 malloc_enable_thread ();
1178 /* Don't catch SIGHUP if dumping. */
1185 sigblock (sigmask (SIGHUP
));
1186 /* In --batch mode, don't catch SIGHUP if already ignored.
1187 That makes nohup work. */
1188 if (! noninteractive
1189 || signal (SIGHUP
, SIG_IGN
) != SIG_IGN
)
1190 signal (SIGHUP
, fatal_error_signal
);
1191 sigunblock (sigmask (SIGHUP
));
1196 ! noninteractive
|| initialized
1202 /* Don't catch these signals in batch mode if dumping.
1203 On some machines, this sets static data that would make
1204 signal fail to work right when the dumped Emacs is run. */
1205 signal (SIGQUIT
, fatal_error_signal
);
1206 signal (SIGILL
, fatal_error_signal
);
1207 signal (SIGTRAP
, fatal_error_signal
);
1209 add_user_signal (SIGUSR1
, "sigusr1");
1212 add_user_signal (SIGUSR2
, "sigusr2");
1215 signal (SIGABRT
, fatal_error_signal
);
1218 signal (SIGHWE
, fatal_error_signal
);
1221 signal (SIGPRE
, fatal_error_signal
);
1224 signal (SIGORE
, fatal_error_signal
);
1227 signal (SIGUME
, fatal_error_signal
);
1230 signal (SIGDLK
, fatal_error_signal
);
1233 signal (SIGCPULIM
, fatal_error_signal
);
1236 /* This is missing on some systems - OS/2, for example. */
1237 signal (SIGIOT
, fatal_error_signal
);
1240 signal (SIGEMT
, fatal_error_signal
);
1242 signal (SIGFPE
, fatal_error_signal
);
1244 signal (SIGBUS
, fatal_error_signal
);
1246 signal (SIGSEGV
, fatal_error_signal
);
1248 signal (SIGSYS
, fatal_error_signal
);
1250 signal (SIGTERM
, fatal_error_signal
);
1252 signal (SIGXCPU
, fatal_error_signal
);
1255 signal (SIGXFSZ
, fatal_error_signal
);
1256 #endif /* SIGXFSZ */
1259 /* This just means available memory is getting low. */
1260 signal (SIGDANGER
, memory_warning_signal
);
1264 /* 20 is SIGCHLD, 21 is SIGTTIN, 22 is SIGTTOU. */
1265 signal (SIGXCPU
, fatal_error_signal
);
1267 signal (SIGIOINT
, fatal_error_signal
);
1269 signal (SIGGRANT
, fatal_error_signal
);
1270 signal (SIGRETRACT
, fatal_error_signal
);
1271 signal (SIGSOUND
, fatal_error_signal
);
1272 signal (SIGMSG
, fatal_error_signal
);
1276 noninteractive1
= noninteractive
;
1278 /* Perform basic initializations (not merely interning symbols). */
1285 init_charset_once ();
1286 init_coding_once ();
1287 init_syntax_once (); /* Create standard syntax table. */
1288 init_category_once (); /* Create standard category table. */
1289 /* Must be done before init_buffer. */
1290 init_casetab_once ();
1291 init_buffer_once (); /* Create buffer table and some buffers. */
1292 init_minibuf_once (); /* Create list of minibuffers. */
1293 /* Must precede init_window_once. */
1295 /* Call syms_of_xfaces before init_window_once because that
1296 function creates Vterminal_frame. Termcap frames now use
1297 faces, and the face implementation uses some symbols as
1300 /* Call syms_of_keyboard before init_window_once because
1301 keyboard sets up symbols that include some face names that
1302 the X support will want to use. This can happen when
1303 CANNOT_DUMP is defined. */
1304 syms_of_keyboard ();
1307 /* init_window_once calls make_terminal_frame which on Mac OS
1308 creates a full-fledge output_mac type frame. This does not
1309 work correctly before syms_of_textprop, syms_of_macfns,
1310 syms_of_ccl, syms_of_fontset, syms_of_xterm, syms_of_search,
1311 syms_of_frame, mac_term_init, and init_keyboard have already
1313 syms_of_textprop ();
1319 syms_of_macselect ();
1325 mac_term_init (build_string ("Mac"), NULL
, NULL
);
1329 init_window_once (); /* Init the window system. */
1330 init_fileio_once (); /* Must precede any path manipulation. */
1331 #ifdef HAVE_WINDOW_SYSTEM
1332 init_fringe_once (); /* Swap bitmaps if necessary. */
1333 #endif /* HAVE_WINDOW_SYSTEM */
1338 if (do_initial_setlocale
)
1341 Vsystem_messages_locale
= Vprevious_system_messages_locale
;
1342 Vsystem_time_locale
= Vprevious_system_time_locale
;
1347 #ifdef CLASH_DETECTION
1353 running_asynch_code
= 0;
1355 /* Handle --unibyte and the EMACS_UNIBYTE envvar,
1356 but not while dumping. */
1359 int inhibit_unibyte
= 0;
1361 /* --multibyte overrides EMACS_UNIBYTE. */
1362 if (argmatch (argv
, argc
, "-no-unibyte", "--no-unibyte", 4, NULL
, &skip_args
)
1363 || argmatch (argv
, argc
, "-multibyte", "--multibyte", 4, NULL
, &skip_args
)
1364 /* Ignore EMACS_UNIBYTE before dumping. */
1365 || (!initialized
&& noninteractive
))
1366 inhibit_unibyte
= 1;
1368 /* --unibyte requests that we set up to do everything with single-byte
1369 buffers and strings. We need to handle this before calling
1370 init_lread, init_editfns and other places that generate Lisp strings
1371 from text in the environment. */
1372 /* Actually this shouldn't be needed as of 20.4 in a generally
1373 unibyte environment. As handa says, environment values
1374 aren't now decoded; also existing buffers are now made
1375 unibyte during startup if .emacs sets unibyte. Tested with
1376 8-bit data in environment variables and /etc/passwd, setting
1377 unibyte and Latin-1 in .emacs. -- Dave Love */
1378 if (argmatch (argv
, argc
, "-unibyte", "--unibyte", 4, NULL
, &skip_args
)
1379 || argmatch (argv
, argc
, "-no-multibyte", "--no-multibyte", 4, NULL
, &skip_args
)
1380 || (getenv ("EMACS_UNIBYTE") && !inhibit_unibyte
))
1382 Lisp_Object old_log_max
;
1383 Lisp_Object symbol
, tail
;
1385 symbol
= intern ("default-enable-multibyte-characters");
1386 Fset (symbol
, Qnil
);
1390 /* Erase pre-dump messages in *Messages* now so no abort. */
1391 old_log_max
= Vmessage_log_max
;
1392 XSETFASTINT (Vmessage_log_max
, 0);
1393 message_dolog ("", 0, 1, 0);
1394 Vmessage_log_max
= old_log_max
;
1397 for (tail
= Vbuffer_alist
; CONSP (tail
);
1402 buffer
= Fcdr (XCAR (tail
));
1403 /* Verify that all buffers are empty now, as they
1405 if (BUF_Z (XBUFFER (buffer
)) > BUF_BEG (XBUFFER (buffer
)))
1407 /* It is safe to do this crudely in an empty buffer. */
1408 XBUFFER (buffer
)->enable_multibyte_characters
= Qnil
;
1414 = argmatch (argv
, argc
, "-nl", "--no-loadup", 6, NULL
, &skip_args
);
1417 #ifdef HAVE_X_WINDOWS
1418 /* Stupid kludge to catch command-line display spec. We can't
1419 handle this argument entirely in window system dependent code
1420 because we don't even know which window system dependent code
1421 to run until we've recognized this argument. */
1423 char *displayname
= 0;
1424 int count_before
= skip_args
;
1426 /* Skip any number of -d options, but only use the last one. */
1429 int count_before_this
= skip_args
;
1431 if (argmatch (argv
, argc
, "-d", "--display", 3, &displayname
, &skip_args
))
1433 else if (argmatch (argv
, argc
, "-display", 0, 3, &displayname
, &skip_args
))
1438 count_before
= count_before_this
;
1441 /* If we have the form --display=NAME,
1442 convert it into -d name.
1443 This requires inserting a new element into argv. */
1444 if (displayname
!= 0 && skip_args
- count_before
== 1)
1446 char **new = (char **) xmalloc (sizeof (char *) * (argc
+ 2));
1449 for (j
= 0; j
< count_before
+ 1; j
++)
1451 new[count_before
+ 1] = "-d";
1452 new[count_before
+ 2] = displayname
;
1453 for (j
= count_before
+ 2; j
<argc
; j
++)
1454 new[j
+ 1] = argv
[j
];
1458 /* Change --display to -d, when its arg is separate. */
1459 else if (displayname
!= 0 && skip_args
> count_before
1460 && argv
[count_before
+ 1][1] == '-')
1461 argv
[count_before
+ 1] = "-d";
1463 /* Don't actually discard this arg. */
1464 skip_args
= count_before
;
1468 /* argmatch must not be used after here,
1469 except when bulding temacs
1470 because the -d argument has not been skipped in skip_args. */
1473 /* Call early 'cause init_environment needs it. */
1475 /* Set defaults for several environment variables. */
1477 init_environment (argc
, argv
, skip_args
);
1484 /* Initialize environment from registry settings. */
1485 init_environment (argv
);
1486 init_ntproc (); /* must precede init_editfns. */
1489 #if defined (MAC_OSX) && defined (HAVE_CARBON)
1491 init_mac_osx_environment ();
1494 /* egetenv is a pretty low-level facility, which may get called in
1495 many circumstances; it seems flimsy to put off initializing it
1496 until calling init_callproc. */
1497 set_process_environment ();
1498 /* AIX crashes are reported in system versions 3.2.3 and 3.2.4
1499 if this is not done. Do it after set_process_environment so that we
1500 don't pollute Vprocess_environment. */
1501 /* Setting LANG here will defeat the startup locale processing... */
1506 init_buffer (); /* Init default directory of main buffer. */
1508 init_callproc_1 (); /* Must precede init_cmdargs and init_sys_modes. */
1509 init_cmdargs (argc
, argv
, skip_args
); /* Must precede init_lread. */
1513 /* Erase any pre-dump messages in the message log, to avoid confusion. */
1514 Lisp_Object old_log_max
;
1515 old_log_max
= Vmessage_log_max
;
1516 XSETFASTINT (Vmessage_log_max
, 0);
1517 message_dolog ("", 0, 1, 0);
1518 Vmessage_log_max
= old_log_max
;
1521 init_callproc (); /* Must follow init_cmdargs but not init_sys_modes. */
1524 /* Intern the names of all standard functions and variables;
1525 define standard keys. */
1529 /* The basic levels of Lisp must come first. */
1530 /* And data must come first of all
1531 for the sake of symbols like error-message. */
1533 /* Called before init_window_once for Mac OS Classic. */
1541 syms_of_floatfns ();
1545 syms_of_bytecode ();
1547 syms_of_casefiddle ();
1549 syms_of_callproc ();
1550 syms_of_category ();
1552 /* Called before init_window_once for Mac OS Classic. */
1557 #ifndef NO_DIR_LIBRARY
1559 #endif /* not NO_DIR_LIBRARY */
1565 syms_of_coding (); /* This should be after syms_of_fileio. */
1566 #ifdef CLASH_DETECTION
1567 syms_of_filelock ();
1568 #endif /* CLASH_DETECTION */
1577 /* Called before init_window_once for Mac OS Classic. */
1588 /* Called before init_window_once for Mac OS Classic. */
1589 syms_of_textprop ();
1591 syms_of_composite ();
1597 #endif /* WINDOWSNT */
1600 #ifdef HAVE_WINDOW_SYSTEM
1603 #endif /* HAVE_WINDOW_SYSTEM */
1604 #ifdef HAVE_X_WINDOWS
1614 #endif /* HAVE_X_WINDOWS */
1618 /* Called before init_window_once for Mac OS Classic. */
1626 syms_of_w32select ();
1629 #endif /* HAVE_NTGUI */
1631 #if defined (MAC_OSX) && defined (HAVE_CARBON)
1635 syms_of_macselect ();
1637 #endif /* MAC_OSX && HAVE_CARBON */
1647 keys_of_casefiddle ();
1650 keys_of_keyboard ();
1657 /* Initialization that must be done even if the global variable
1658 initialized is non zero. */
1660 globals_of_w32fns ();
1661 globals_of_w32menu ();
1662 globals_of_w32select ();
1663 #endif /* HAVE_NTGUI */
1666 if (!noninteractive
)
1669 init_vms_input ();/* init_display calls get_frame_size, that needs this. */
1671 init_display (); /* Determine terminal type. init_sys_modes uses results. */
1674 /* Called before init_window_once for Mac OS Classic. */
1675 init_keyboard (); /* This too must precede init_sys_modes. */
1678 init_vmsproc (); /* And this too. */
1680 init_sys_modes (); /* Init system terminal modes (RAW or CBREAK, etc.). */
1683 #ifdef HAVE_WINDOW_SYSTEM
1686 #endif /* HAVE_WINDOW_SYSTEM */
1702 /* Handle -l loadup, args passed by Makefile. */
1703 if (argmatch (argv
, argc
, "-l", "--load", 3, &file
, &skip_args
))
1704 Vtop_level
= Fcons (intern ("load"),
1705 Fcons (build_string (file
), Qnil
));
1706 /* Unless next switch is -nl, load "loadup.el" first thing. */
1708 Vtop_level
= Fcons (intern ("load"),
1709 Fcons (build_string ("loadup.el"), Qnil
));
1716 /* If the execution TZ happens to be the same as the dump TZ,
1717 change it to some other value and then change it back,
1718 to force the underlying implementation to reload the TZ info.
1719 This is needed on implementations that load TZ info from files,
1720 since the TZ file contents may differ between dump and execution. */
1721 char *tz
= getenv ("TZ");
1722 if (tz
&& !strcmp (tz
, dump_tz
))
1732 /* Set up for profiling. This is known to work on FreeBSD,
1733 GNU/Linux and MinGW. It might work on some other systems too.
1734 Give it a try and tell us if it works on your system. To compile
1735 for profiling, add -pg to the switches your platform uses in
1736 CFLAGS and LDFLAGS. For example:
1737 `make CFLAGS="-pg -g -O -DPROFILING=1" LDFLAGS="-pg -g"'. */
1738 #if defined (__FreeBSD__) || defined (GNU_LINUX) || defined(__MINGW32__)
1742 extern void _mcleanup ();
1744 extern unsigned char etext
asm ("etext");
1748 extern void safe_bcopy ();
1749 extern void dump_opcode_frequencies ();
1752 /* This uses safe_bcopy because that function comes first in the
1753 Emacs executable. It might be better to use something that
1754 gives the start of the text segment, but start_of_text is not
1755 defined on all systems now. */
1756 monstartup (safe_bcopy
, &etext
);
1765 #ifdef LOCALTIME_CACHE
1766 /* Some versions of localtime have a bug. They cache the value of the time
1767 zone rather than looking it up every time. Since localtime() is
1768 called to bolt the undumping time into the undumped emacs, this
1769 results in localtime ignoring the TZ environment variable.
1770 This flushes the new TZ value into localtime. */
1772 #endif /* defined (LOCALTIME_CACHE) */
1774 /* Enter editor command loop. This never returns. */
1780 /* Sort the args so we can find the most important ones
1781 at the beginning of argv. */
1783 /* First, here's a table of all the standard options. */
1785 struct standard_args
1793 struct standard_args standard_args
[] =
1795 { "-version", "--version", 150, 0 },
1797 { "-nl", "--no-shared-memory", 140, 0 },
1800 { "-map", "--map-data", 130, 0 },
1802 { "-t", "--terminal", 120, 1 },
1803 { "-nw", "--no-window-system", 110, 0 },
1804 { "-nw", "--no-windows", 110, 0 },
1805 { "-batch", "--batch", 100, 0 },
1806 { "-script", "--script", 100, 1 },
1807 { "-help", "--help", 90, 0 },
1808 { "-no-unibyte", "--no-unibyte", 83, 0 },
1809 { "-multibyte", "--multibyte", 82, 0 },
1810 { "-unibyte", "--unibyte", 81, 0 },
1811 { "-no-multibyte", "--no-multibyte", 80, 0 },
1812 { "-nl", "--no-loadup", 70, 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 { "-no-splash", "--no-splash", 40, 0 },
1823 { "-u", "--user", 30, 1 },
1824 { "-user", 0, 30, 1 },
1825 { "-debug-init", "--debug-init", 20, 0 },
1826 { "-nbi", "--no-bitmap-icon", 15, 0 },
1827 { "-iconic", "--iconic", 15, 0 },
1828 { "-D", "--basic-display", 12, 0},
1829 { "-basic-display", 0, 12, 0},
1830 { "-bg", "--background-color", 10, 1 },
1831 { "-background", 0, 10, 1 },
1832 { "-fg", "--foreground-color", 10, 1 },
1833 { "-foreground", 0, 10, 1 },
1834 { "-bd", "--border-color", 10, 1 },
1835 { "-bw", "--border-width", 10, 1 },
1836 { "-ib", "--internal-border", 10, 1 },
1837 { "-ms", "--mouse-color", 10, 1 },
1838 { "-cr", "--cursor-color", 10, 1 },
1839 { "-nbc", "--no-blinking-cursor", 10, 0 },
1840 { "-fn", "--font", 10, 1 },
1841 { "-font", 0, 10, 1 },
1842 { "-fs", "--fullscreen", 10, 0 },
1843 { "-fw", "--fullwidth", 10, 0 },
1844 { "-fh", "--fullheight", 10, 0 },
1845 { "-g", "--geometry", 10, 1 },
1846 { "-geometry", 0, 10, 1 },
1847 { "-T", "--title", 10, 1 },
1848 { "-title", 0, 10, 1 },
1849 { "-name", "--name", 10, 1 },
1850 { "-xrm", "--xrm", 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 /* These have the same priority as ordinary file name args,
1858 so they are not reordered with respect to those. */
1859 { "-L", "--directory", 0, 1 },
1860 { "-directory", 0, 0, 1 },
1861 { "-l", "--load", 0, 1 },
1862 { "-load", 0, 0, 1 },
1863 { "-scriptload", "--scriptload", 0, 1 },
1864 { "-f", "--funcall", 0, 1 },
1865 { "-funcall", 0, 0, 1 },
1866 { "-eval", "--eval", 0, 1 },
1867 { "-execute", "--execute", 0, 1 },
1868 { "-find-file", "--find-file", 0, 1 },
1869 { "-visit", "--visit", 0, 1 },
1870 { "-file", "--file", 0, 1 },
1871 { "-insert", "--insert", 0, 1 },
1872 /* This should be processed after ordinary file name args and the like. */
1873 { "-kill", "--kill", -10, 0 },
1876 /* Reorder the elements of ARGV (assumed to have ARGC elements)
1877 so that the highest priority ones come first.
1878 Do not change the order of elements of equal priority.
1879 If an option takes an argument, keep it and its argument together.
1881 If an option that takes no argument appears more
1882 than once, eliminate all but one copy of it. */
1885 sort_args (argc
, argv
)
1889 char **new = (char **) xmalloc (sizeof (char *) * argc
);
1890 /* For each element of argv,
1891 the corresponding element of options is:
1892 0 for an option that takes no arguments,
1893 1 for an option that takes one argument, etc.
1894 -1 for an ordinary non-option argument. */
1895 int *options
= (int *) xmalloc (sizeof (int) * argc
);
1896 int *priority
= (int *) xmalloc (sizeof (int) * argc
);
1898 int incoming_used
= 1;
1902 /* Categorize all the options,
1903 and figure out which argv elts are option arguments. */
1904 for (from
= 1; from
< argc
; from
++)
1908 if (argv
[from
][0] == '-')
1913 /* If we have found "--", don't consider
1914 any more arguments as options. */
1915 if (argv
[from
][1] == '-' && argv
[from
][2] == 0)
1917 /* Leave the "--", and everything following it, at the end. */
1918 for (; from
< argc
; from
++)
1920 priority
[from
] = -100;
1926 /* Look for a match with a known old-fashioned option. */
1927 for (i
= 0; i
< sizeof (standard_args
) / sizeof (standard_args
[0]); i
++)
1928 if (!strcmp (argv
[from
], standard_args
[i
].name
))
1930 options
[from
] = standard_args
[i
].nargs
;
1931 priority
[from
] = standard_args
[i
].priority
;
1932 if (from
+ standard_args
[i
].nargs
>= argc
)
1933 fatal ("Option `%s' requires an argument\n", argv
[from
]);
1934 from
+= standard_args
[i
].nargs
;
1938 /* Look for a match with a known long option.
1939 MATCH is -1 if no match so far, -2 if two or more matches so far,
1940 >= 0 (the table index of the match) if just one match so far. */
1941 if (argv
[from
][1] == '-')
1944 thislen
= strlen (argv
[from
]);
1945 equals
= index (argv
[from
], '=');
1947 thislen
= equals
- argv
[from
];
1950 i
< sizeof (standard_args
) / sizeof (standard_args
[0]); i
++)
1951 if (standard_args
[i
].longname
1952 && !strncmp (argv
[from
], standard_args
[i
].longname
,
1961 /* If we found exactly one match, use that. */
1964 options
[from
] = standard_args
[match
].nargs
;
1965 priority
[from
] = standard_args
[match
].priority
;
1966 /* If --OPTION=VALUE syntax is used,
1967 this option uses just one argv element. */
1970 if (from
+ options
[from
] >= argc
)
1971 fatal ("Option `%s' requires an argument\n", argv
[from
]);
1972 from
+= options
[from
];
1979 /* Copy the arguments, in order of decreasing priority, to NEW. */
1981 while (incoming_used
< argc
)
1984 int best_priority
= -9999;
1986 /* Find the highest priority remaining option.
1987 If several have equal priority, take the first of them. */
1988 for (from
= 1; from
< argc
; from
++)
1990 if (argv
[from
] != 0 && priority
[from
] > best_priority
)
1992 best_priority
= priority
[from
];
1995 /* Skip option arguments--they are tied to the options. */
1996 if (options
[from
] > 0)
1997 from
+= options
[from
];
2003 /* Copy the highest priority remaining option, with its args, to NEW.
2004 Unless it is a duplicate of the previous one. */
2005 if (! (options
[best
] == 0
2006 && ! strcmp (new[to
- 1], argv
[best
])))
2008 new[to
++] = argv
[best
];
2009 for (i
= 0; i
< options
[best
]; i
++)
2010 new[to
++] = argv
[best
+ i
+ 1];
2013 incoming_used
+= 1 + (options
[best
] > 0 ? options
[best
] : 0);
2015 /* Clear out this option in ARGV. */
2017 for (i
= 0; i
< options
[best
]; i
++)
2018 argv
[best
+ i
+ 1] = 0;
2021 /* If duplicate options were deleted, fill up extra space with null ptrs. */
2025 bcopy (new, argv
, sizeof (char *) * argc
);
2032 DEFUN ("kill-emacs", Fkill_emacs
, Skill_emacs
, 0, 1, "P",
2033 doc
: /* Exit the Emacs job and kill it.
2034 If ARG is an integer, return ARG as the exit program code.
2035 If ARG is a string, stuff it as keyboard input.
2037 The value of `kill-emacs-hook', if not void,
2038 is a list of functions (of no args),
2039 all of which are called before Emacs is actually killed. */)
2043 struct gcpro gcpro1
;
2050 if (!NILP (Vrun_hooks
) && !noninteractive
)
2051 call1 (Vrun_hooks
, intern ("kill-emacs-hook"));
2055 /* Is it really necessary to do this deassign
2056 when we are going to exit anyway? */
2061 shut_down_emacs (0, 0, STRINGP (arg
) ? arg
: Qnil
);
2063 /* If we have an auto-save list file,
2064 kill it because we are exiting Emacs deliberately (not crashing).
2065 Do it after shut_down_emacs, which does an auto-save. */
2066 if (STRINGP (Vauto_save_list_file_name
))
2067 unlink (SDATA (Vauto_save_list_file_name
));
2069 exit (INTEGERP (arg
) ? XINT (arg
) : EXIT_SUCCESS
);
2075 /* Perform an orderly shutdown of Emacs. Autosave any modified
2076 buffers, kill any child processes, clean up the terminal modes (if
2077 we're in the foreground), and other stuff like that. Don't perform
2078 any redisplay; this may be called when Emacs is shutting down in
2079 the background, or after its X connection has died.
2081 If SIG is a signal number, print a message for it.
2083 This is called by fatal signal handlers, X protocol error handlers,
2087 shut_down_emacs (sig
, no_x
, stuff
)
2091 /* Prevent running of hooks from now on. */
2094 /* Don't update display from now on. */
2095 Vinhibit_redisplay
= Qt
;
2097 /* If we are controlling the terminal, reset terminal modes. */
2098 #ifdef EMACS_HAVE_TTY_PGRP
2100 int pgrp
= EMACS_GETPGRP (0);
2103 if (EMACS_GET_TTY_PGRP (0, &tpgrp
) != -1
2108 if (sig
&& sig
!= SIGTERM
)
2109 fprintf (stderr
, "Fatal error (%d)", sig
);
2117 stuff_buffered_input (stuff
);
2120 inhibit_sentinels
= 1;
2122 kill_buffer_processes (Qnil
);
2123 Fdo_auto_save (Qt
, Qnil
);
2125 #ifdef CLASH_DETECTION
2126 unlock_all_files ();
2130 kill_vms_processes ();
2133 #if 0 /* This triggers a bug in XCloseDisplay and is not needed. */
2134 #ifdef HAVE_X_WINDOWS
2135 /* It's not safe to call intern here. Maybe we are crashing. */
2136 if (!noninteractive
&& SYMBOLP (Vwindow_system
)
2137 && SCHARS (SYMBOL_NAME (Vwindow_system
)) == 1
2138 && SREF (SYMBOL_NAME (Vwindow_system
), 0) == 'x'
2140 Fx_close_current_connection ();
2141 #endif /* HAVE_X_WINDOWS */
2145 /* There is a tendency for a SIGIO signal to arrive within exit,
2146 and cause a SIGHUP because the input descriptor is already closed. */
2148 signal (SIGIO
, SIG_IGN
);
2155 /* Do this only if terminating normally, we want glyph matrices
2156 etc. in a core dump. */
2157 if (sig
== 0 || sig
== SIGTERM
)
2159 check_glyph_memory ();
2160 check_message_stack ();
2174 DEFUN ("dump-emacs-data", Fdump_emacs_data
, Sdump_emacs_data
, 1, 1, 0,
2175 doc
: /* Dump current state of Emacs into data file FILENAME.
2176 This function exists on systems that use HAVE_SHM. */)
2178 Lisp_Object filename
;
2180 extern char my_edata
[];
2184 CHECK_STRING (filename
);
2185 filename
= Fexpand_file_name (filename
, Qnil
);
2188 Vpurify_flag
= Qnil
;
2191 /* Tell malloc where start of impure now is. */
2192 /* Also arrange for warnings when nearly out of space. */
2193 #ifndef SYSTEM_MALLOC
2194 memory_warnings (my_edata
, malloc_warning
);
2196 map_out_data (SDATA (filename
));
2203 #else /* not HAVE_SHM */
2205 DEFUN ("dump-emacs", Fdump_emacs
, Sdump_emacs
, 2, 2, 0,
2206 doc
: /* Dump current state of Emacs into executable file FILENAME.
2207 Take symbols from SYMFILE (presumably the file you executed to run Emacs).
2208 This is used in the file `loadup.el' when building Emacs.
2210 You must run Emacs in batch mode in order to dump it. */)
2212 Lisp_Object filename
, symfile
;
2214 extern char my_edata
[];
2217 int count
= SPECPDL_INDEX ();
2221 if (! noninteractive
)
2222 error ("Dumping Emacs works only in batch mode");
2225 if (heap_bss_diff
> MAX_HEAP_BSS_DIFF
)
2227 fprintf (stderr
, "**************************************************\n");
2228 fprintf (stderr
, "Warning: Your system has a gap between BSS and the\n");
2229 fprintf (stderr
, "heap (%lu byte). This usually means that exec-shield\n",
2231 fprintf (stderr
, "or something similar is in effect. The dump may\n");
2232 fprintf (stderr
, "fail because of this. See the section about \n");
2233 fprintf (stderr
, "exec-shield in etc/PROBLEMS for more information.\n");
2234 fprintf (stderr
, "**************************************************\n");
2236 #endif /* GNU_LINUX */
2238 /* Bind `command-line-processed' to nil before dumping,
2239 so that the dumped Emacs will process its command line
2240 and set up to work with X windows if appropriate. */
2241 symbol
= intern ("command-line-processed");
2242 specbind (symbol
, Qnil
);
2244 CHECK_STRING (filename
);
2245 filename
= Fexpand_file_name (filename
, Qnil
);
2246 if (!NILP (symfile
))
2248 CHECK_STRING (symfile
);
2249 if (SCHARS (symfile
))
2250 symfile
= Fexpand_file_name (symfile
, Qnil
);
2254 Vpurify_flag
= Qnil
;
2257 set_time_zone_rule (dump_tz
);
2258 #ifndef LOCALTIME_CACHE
2259 /* Force a tz reload, since set_time_zone_rule doesn't. */
2266 mapout_data (SDATA (filename
));
2268 /* Tell malloc where start of impure now is. */
2269 /* Also arrange for warnings when nearly out of space. */
2270 #ifndef SYSTEM_MALLOC
2272 /* On Windows, this was done before dumping, and that once suffices.
2273 Meanwhile, my_edata is not valid on Windows. */
2274 memory_warnings (my_edata
, malloc_warning
);
2275 #endif /* not WINDOWSNT */
2277 #if !defined (SYSTEM_MALLOC) && defined (HAVE_GTK_AND_PTHREAD) && !defined SYNC_INPUT
2278 /* Pthread may call malloc before main, and then we will get an endless
2279 loop, because pthread_self (see alloc.c) calls malloc the first time
2280 it is called on some systems. */
2281 reset_malloc_hooks ();
2283 #ifdef DOUG_LEA_MALLOC
2284 malloc_state_ptr
= malloc_get_state ();
2287 #ifdef USE_MMAP_FOR_BUFFERS
2290 unexec (SDATA (filename
),
2291 !NILP (symfile
) ? SDATA (symfile
) : 0, my_edata
, 0, 0);
2292 #ifdef USE_MMAP_FOR_BUFFERS
2295 #ifdef DOUG_LEA_MALLOC
2296 free (malloc_state_ptr
);
2298 #endif /* not VMS */
2302 return unbind_to (count
, Qnil
);
2305 #endif /* not HAVE_SHM */
2307 #endif /* not CANNOT_DUMP */
2310 /* Recover from setlocale (LC_ALL, ""). */
2314 /* The Emacs Lisp reader needs LC_NUMERIC to be "C",
2315 so that numbers are read and printed properly for Emacs Lisp. */
2316 setlocale (LC_NUMERIC
, "C");
2319 /* Set system locale CATEGORY, with previous locale *PLOCALE, to
2322 synchronize_locale (category
, plocale
, desired_locale
)
2324 Lisp_Object
*plocale
;
2325 Lisp_Object desired_locale
;
2327 if (! EQ (*plocale
, desired_locale
))
2329 *plocale
= desired_locale
;
2330 setlocale (category
, (STRINGP (desired_locale
)
2331 ? (char *) SDATA (desired_locale
)
2336 /* Set system time locale to match Vsystem_time_locale, if possible. */
2338 synchronize_system_time_locale ()
2340 synchronize_locale (LC_TIME
, &Vprevious_system_time_locale
,
2341 Vsystem_time_locale
);
2344 /* Set system messages locale to match Vsystem_messages_locale, if
2347 synchronize_system_messages_locale ()
2350 synchronize_locale (LC_MESSAGES
, &Vprevious_system_messages_locale
,
2351 Vsystem_messages_locale
);
2354 #endif /* HAVE_SETLOCALE */
2361 decode_env_path (evarname
, defalt
)
2362 char *evarname
, *defalt
;
2364 register char *path
, *p
;
2365 Lisp_Object lpath
, element
, tem
;
2367 /* It's okay to use getenv here, because this function is only used
2368 to initialize variables when Emacs starts up, and isn't called
2371 path
= (char *) getenv (evarname
);
2377 /* Ensure values from the environment use the proper directory separator. */
2380 p
= alloca (strlen (path
) + 1);
2384 if ('/' == DIRECTORY_SEP
)
2385 dostounix_filename (path
);
2387 unixtodos_filename (path
);
2393 p
= index (path
, SEPCHAR
);
2394 if (!p
) p
= path
+ strlen (path
);
2395 element
= (p
- path
? make_string (path
, p
- path
)
2396 : build_string ("."));
2398 /* Add /: to the front of the name
2399 if it would otherwise be treated as magic. */
2400 tem
= Ffind_file_name_handler (element
, Qt
);
2402 /* However, if the handler says "I'm safe",
2403 don't bother adding /:. */
2407 prop
= Fget (tem
, intern ("safe-magic"));
2413 element
= concat2 (build_string ("/:"), element
);
2415 lpath
= Fcons (element
, lpath
);
2421 return Fnreverse (lpath
);
2427 Qfile_name_handler_alist
= intern ("file-name-handler-alist");
2428 staticpro (&Qfile_name_handler_alist
);
2432 defsubr (&Sdump_emacs_data
);
2434 defsubr (&Sdump_emacs
);
2438 defsubr (&Skill_emacs
);
2440 defsubr (&Sinvocation_name
);
2441 defsubr (&Sinvocation_directory
);
2443 DEFVAR_LISP ("command-line-args", &Vcommand_line_args
,
2444 doc
: /* Args passed by shell to Emacs, as a list of strings.
2445 Many arguments are deleted from the list as they are processed. */);
2447 DEFVAR_LISP ("system-type", &Vsystem_type
,
2448 doc
: /* Value is symbol indicating type of operating system you are using.
2450 `gnu/linux' compiled for a GNU/Linux system.
2451 `darwin' compiled for Darwin (GNU-Darwin, Mac OS X, ...).
2452 `macos' compiled for Mac OS 9.
2453 `ms-dos' compiled as an MS-DOS application.
2454 `windows-nt' compiled as a native W32 application.
2455 `cygwin' compiled using the Cygwin library.
2457 `axp-vms' compiled for a (Open)VMS system.
2458 Anything else indicates some sort of Unix system. */);
2459 Vsystem_type
= intern (SYSTEM_TYPE
);
2461 DEFVAR_LISP ("system-configuration", &Vsystem_configuration
,
2462 doc
: /* Value is string indicating configuration Emacs was built for.
2463 On MS-Windows, the value reflects the OS flavor and version on which
2464 Emacs is running. */);
2465 Vsystem_configuration
= build_string (EMACS_CONFIGURATION
);
2467 DEFVAR_LISP ("system-configuration-options", &Vsystem_configuration_options
,
2468 doc
: /* String containing the configuration options Emacs was built with. */);
2469 Vsystem_configuration_options
= build_string (EMACS_CONFIG_OPTIONS
);
2471 DEFVAR_BOOL ("noninteractive", &noninteractive1
,
2472 doc
: /* Non-nil means Emacs is running without interactive terminal. */);
2474 DEFVAR_LISP ("kill-emacs-hook", &Vkill_emacs_hook
,
2475 doc
: /* Hook to be run when kill-emacs is called.
2476 Since `kill-emacs' may be invoked when the terminal is disconnected (or
2477 in other similar situations), functions placed on this hook should not
2478 expect to be able to interact with the user. To ask for confirmation,
2479 see `kill-emacs-query-functions' instead.
2481 The hook is not run in batch mode, i.e., if `noninteractive' is non-nil. */);
2482 Vkill_emacs_hook
= Qnil
;
2484 DEFVAR_INT ("emacs-priority", &emacs_priority
,
2485 doc
: /* Priority for Emacs to run at.
2486 This value is effective only if set before Emacs is dumped,
2487 and only if the Emacs executable is installed with setuid to permit
2488 it to change priority. (Emacs sets its uid back to the real uid.)
2489 Currently, you need to define SET_EMACS_PRIORITY in `config.h'
2490 before you compile Emacs, to enable the code for this feature. */);
2493 DEFVAR_LISP ("path-separator", &Vpath_separator
,
2494 doc
: /* String containing the character that separates directories in
2495 search paths, such as PATH and other similar environment variables. */);
2498 Vpath_separator
= make_string (&c
, 1);
2501 DEFVAR_LISP ("invocation-name", &Vinvocation_name
,
2502 doc
: /* The program name that was used to run Emacs.
2503 Any directory names are omitted. */);
2505 DEFVAR_LISP ("invocation-directory", &Vinvocation_directory
,
2506 doc
: /* The directory in which the Emacs executable was found, to run it.
2507 The value is nil if that directory's name is not known. */);
2509 DEFVAR_LISP ("installation-directory", &Vinstallation_directory
,
2510 doc
: /* A directory within which to look for the `lib-src' and `etc' directories.
2511 This is non-nil when we can't find those directories in their standard
2512 installed locations, but we can find them
2513 near where the Emacs executable was found. */);
2514 Vinstallation_directory
= Qnil
;
2516 DEFVAR_LISP ("system-messages-locale", &Vsystem_messages_locale
,
2517 doc
: /* System locale for messages. */);
2518 Vsystem_messages_locale
= Qnil
;
2520 DEFVAR_LISP ("previous-system-messages-locale",
2521 &Vprevious_system_messages_locale
,
2522 doc
: /* Most recently used system locale for messages. */);
2523 Vprevious_system_messages_locale
= Qnil
;
2525 DEFVAR_LISP ("system-time-locale", &Vsystem_time_locale
,
2526 doc
: /* System locale for time. */);
2527 Vsystem_time_locale
= Qnil
;
2529 DEFVAR_LISP ("previous-system-time-locale", &Vprevious_system_time_locale
,
2530 doc
: /* Most recently used system locale for time. */);
2531 Vprevious_system_time_locale
= Qnil
;
2534 /* arch-tag: 7bfd356a-c720-4612-8ab6-aa4222931c2e
2535 (do not change this comment) */