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 /* An empty lisp string. To avoid having to build any other. */
137 Lisp_Object empty_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. */
860 tem
= Fsymbol_value (intern ("emacs-version"));
863 fprintf (stderr
, "Invalid value of `emacs-version'\n");
868 printf ("GNU Emacs %s\n", SDATA (tem
));
869 printf ("Copyright (C) 2007 Free Software Foundation, Inc.\n");
870 printf ("GNU Emacs comes with ABSOLUTELY NO WARRANTY.\n");
871 printf ("You may redistribute copies of Emacs\n");
872 printf ("under the terms of the GNU General Public License.\n");
873 printf ("For more information about these matters, ");
874 printf ("see the file named COPYING.\n");
879 #ifdef HAVE_PERSONALITY_LINUX32
880 /* See if there is a gap between the end of BSS and the heap.
881 In that case, set personality and exec ourself again. */
883 && (strcmp (argv
[argc
-1], "dump") == 0
884 || strcmp (argv
[argc
-1], "bootstrap") == 0)
885 && heap_bss_diff
> MAX_HEAP_BSS_DIFF
)
887 if (! getenv ("EMACS_HEAP_EXEC"))
889 /* Set this so we only do this once. */
890 putenv("EMACS_HEAP_EXEC=true");
892 /* A flag to turn off address randomization which is introduced
893 in linux kernel shipped with fedora core 4 */
894 #define ADD_NO_RANDOMIZE 0x0040000
895 personality (PER_LINUX32
| ADD_NO_RANDOMIZE
);
896 #undef ADD_NO_RANDOMIZE
898 execvp (argv
[0], argv
);
900 /* If the exec fails, try to dump anyway. */
904 #endif /* HAVE_PERSONALITY_LINUX32 */
907 /* Map in shared memory, if we are using that. */
909 if (argmatch (argv
, argc
, "-nl", "--no-shared-memory", 6, NULL
, &skip_args
))
912 /* The shared memory was just restored, which clobbered this. */
918 /* The shared memory was just restored, which clobbered this. */
925 extern int malloc_cookie
;
926 /* This helps out unexnext.c. */
928 if (malloc_jumpstart (malloc_cookie
) != 0)
929 printf ("malloc jumpstart failed!\n");
934 /* Skip process serial number passed in the form -psn_x_y as
935 command-line argument. The WindowServer adds this option when
936 Emacs is invoked from the Finder or by the `open' command. In
937 these cases, the working directory becomes `/', so we change it
938 to the user's home directory. */
939 if (argc
> skip_args
+ 1 && strncmp (argv
[skip_args
+1], "-psn_", 5) == 0)
941 chdir (getenv ("HOME"));
947 /* If -map specified, map the data file in. */
950 if (argmatch (argv
, argc
, "-map", "--map-data", 3, &file
, &skip_args
))
954 #ifdef LINK_CRTL_SHARE
955 #ifdef SHARABLE_LIB_BUG
956 /* Bletcherous shared libraries! */
958 stdin
= fdopen (0, "r");
960 stdout
= fdopen (1, "w");
962 stderr
= fdopen (2, "w");
965 #endif /* SHARABLE_LIB_BUG */
966 #endif /* LINK_CRTL_SHARE */
969 #if defined (HAVE_SETRLIMIT) && defined (RLIMIT_STACK)
970 /* Extend the stack space available.
971 Don't do that if dumping, since some systems (e.g. DJGPP)
972 might define a smaller stack limit at that time. */
975 && (!noninteractive
|| initialized
)
977 && !getrlimit (RLIMIT_STACK
, &rlim
))
980 extern size_t re_max_failures
;
981 /* Approximate the amount regex.c needs per unit of re_max_failures. */
982 int ratio
= 20 * sizeof (char *);
983 /* Then add 33% to cover the size of the smaller stacks that regex.c
984 successively allocates and discards, on its way to the maximum. */
986 /* Add in some extra to cover
987 what we're likely to use for other reasons. */
988 newlim
= re_max_failures
* ratio
+ 200000;
990 /* NetBSD (at least NetBSD 1.2G and former) has a bug in its
991 stack allocation routine for new process that the allocation
992 fails if stack limit is not on page boundary. So, round up the
993 new limit to page boundary. */
994 newlim
= (newlim
+ getpagesize () - 1) / getpagesize () * getpagesize();
996 if (newlim
> rlim
.rlim_max
)
998 newlim
= rlim
.rlim_max
;
999 /* Don't let regex.c overflow the stack we have. */
1000 re_max_failures
= (newlim
- 200000) / ratio
;
1002 if (rlim
.rlim_cur
< newlim
)
1003 rlim
.rlim_cur
= newlim
;
1005 setrlimit (RLIMIT_STACK
, &rlim
);
1007 #endif /* HAVE_SETRLIMIT and RLIMIT_STACK */
1009 /* Record (approximately) where the stack begins. */
1010 stack_bottom
= &stack_bottom_variable
;
1012 #ifdef USG_SHARED_LIBRARIES
1014 brk ((void *)bss_end
);
1019 #ifndef SYSTEM_MALLOC
1020 /* Arrange to get warning messages as memory fills up. */
1021 memory_warnings (0, malloc_warning
);
1023 /* Call malloc at least once, to run the initial __malloc_hook.
1024 Also call realloc and free for consistency. */
1025 free (realloc (malloc (4), 4));
1028 /* Arrange to disable interrupt input inside malloc etc. */
1029 uninterrupt_malloc ();
1030 # endif /* not SYNC_INPUT */
1031 #endif /* not SYSTEM_MALLOC */
1033 #ifdef HAVE_GTK_AND_PTHREAD
1034 main_thread
= pthread_self ();
1035 #endif /* HAVE_GTK_AND_PTHREAD */
1037 #if defined (MSDOS) || defined (WINDOWSNT)
1038 /* We do all file input/output as binary files. When we need to translate
1039 newlines, we do that manually. */
1041 #endif /* MSDOS || WINDOWSNT */
1045 if (!isatty (fileno (stdin
)))
1046 setmode (fileno (stdin
), O_BINARY
);
1047 if (!isatty (fileno (stdout
)))
1050 setmode (fileno (stdout
), O_BINARY
);
1052 #else /* not __DJGPP__ >= 2 */
1053 (stdin
)->_flag
&= ~_IOTEXT
;
1054 (stdout
)->_flag
&= ~_IOTEXT
;
1055 (stderr
)->_flag
&= ~_IOTEXT
;
1056 #endif /* not __DJGPP__ >= 2 */
1059 #ifdef SET_EMACS_PRIORITY
1061 nice (emacs_priority
);
1063 #endif /* SET_EMACS_PRIORITY */
1065 /* Skip initial setlocale if LC_ALL is "C", as it's not needed in that case.
1066 The build procedure uses this while dumping, to ensure that the
1067 dumped Emacs does not have its system locale tables initialized,
1068 as that might cause screwups when the dumped Emacs starts up. */
1070 char *lc_all
= getenv ("LC_ALL");
1071 do_initial_setlocale
= ! lc_all
|| strcmp (lc_all
, "C");
1074 /* Set locale now, so that initial error messages are localized properly.
1075 fixup_locale must wait until later, since it builds strings. */
1076 if (do_initial_setlocale
)
1077 setlocale (LC_ALL
, "");
1079 #ifdef EXTRA_INITIALIZE
1083 inhibit_window_system
= 0;
1085 /* Handle the -t switch, which specifies filename to use as terminal. */
1089 if (argmatch (argv
, argc
, "-t", "--terminal", 4, &term
, &skip_args
))
1094 result
= emacs_open (term
, O_RDWR
, 0);
1097 char *errstring
= strerror (errno
);
1098 fprintf (stderr
, "%s: %s: %s\n", argv
[0], term
, errstring
);
1104 fprintf (stderr
, "%s: %s: not a tty\n", argv
[0], term
);
1107 fprintf (stderr
, "Using %s\n", term
);
1108 #ifdef HAVE_WINDOW_SYSTEM
1109 inhibit_window_system
= 1; /* -t => -nw */
1116 /* Command line option --no-windows is deprecated and thus not mentioned
1117 in the manual and usage informations. */
1118 if (argmatch (argv
, argc
, "-nw", "--no-window-system", 6, NULL
, &skip_args
)
1119 || argmatch (argv
, argc
, "-nw", "--no-windows", 6, NULL
, &skip_args
))
1120 inhibit_window_system
= 1;
1122 /* Handle the -batch switch, which means don't do interactive display. */
1124 if (argmatch (argv
, argc
, "-batch", "--batch", 5, NULL
, &skip_args
))
1127 Vundo_outer_limit
= Qnil
;
1129 if (argmatch (argv
, argc
, "-script", "--script", 3, &junk
, &skip_args
))
1131 noninteractive
= 1; /* Set batch mode. */
1132 /* Convert --script to --scriptload, un-skip it, and sort again
1133 so that it will be handled in proper sequence. */
1134 argv
[skip_args
- 1] = "-scriptload";
1136 sort_args (argc
, argv
);
1139 /* Handle the --help option, which gives a usage message. */
1140 if (argmatch (argv
, argc
, "-help", "--help", 3, NULL
, &skip_args
))
1142 printf (USAGE1
, argv
[0], USAGE2
);
1144 printf (USAGE4
, bug_reporting_address ());
1148 if (! noninteractive
)
1153 inherited_pgroup
= EMACS_GETPGRP (0);
1154 setpgrp (0, getpid ());
1157 #if defined (USG5) && defined (INTERRUPT_INPUT)
1161 #if defined (HAVE_GTK_AND_PTHREAD) && !defined (SYSTEM_MALLOC) && !defined (DOUG_LEA_MALLOC)
1163 extern void malloc_enable_thread
P_ ((void));
1165 malloc_enable_thread ();
1172 /* Don't catch SIGHUP if dumping. */
1179 sigblock (sigmask (SIGHUP
));
1180 /* In --batch mode, don't catch SIGHUP if already ignored.
1181 That makes nohup work. */
1182 if (! noninteractive
1183 || signal (SIGHUP
, SIG_IGN
) != SIG_IGN
)
1184 signal (SIGHUP
, fatal_error_signal
);
1185 sigunblock (sigmask (SIGHUP
));
1190 ! noninteractive
|| initialized
1196 /* Don't catch these signals in batch mode if dumping.
1197 On some machines, this sets static data that would make
1198 signal fail to work right when the dumped Emacs is run. */
1199 signal (SIGQUIT
, fatal_error_signal
);
1200 signal (SIGILL
, fatal_error_signal
);
1201 signal (SIGTRAP
, fatal_error_signal
);
1203 add_user_signal (SIGUSR1
, "sigusr1");
1206 add_user_signal (SIGUSR2
, "sigusr2");
1209 signal (SIGABRT
, fatal_error_signal
);
1212 signal (SIGHWE
, fatal_error_signal
);
1215 signal (SIGPRE
, fatal_error_signal
);
1218 signal (SIGORE
, fatal_error_signal
);
1221 signal (SIGUME
, fatal_error_signal
);
1224 signal (SIGDLK
, fatal_error_signal
);
1227 signal (SIGCPULIM
, fatal_error_signal
);
1230 /* This is missing on some systems - OS/2, for example. */
1231 signal (SIGIOT
, fatal_error_signal
);
1234 signal (SIGEMT
, fatal_error_signal
);
1236 signal (SIGFPE
, fatal_error_signal
);
1238 signal (SIGBUS
, fatal_error_signal
);
1240 signal (SIGSEGV
, fatal_error_signal
);
1242 signal (SIGSYS
, fatal_error_signal
);
1244 signal (SIGTERM
, fatal_error_signal
);
1246 signal (SIGXCPU
, fatal_error_signal
);
1249 signal (SIGXFSZ
, fatal_error_signal
);
1250 #endif /* SIGXFSZ */
1253 /* This just means available memory is getting low. */
1254 signal (SIGDANGER
, memory_warning_signal
);
1258 /* 20 is SIGCHLD, 21 is SIGTTIN, 22 is SIGTTOU. */
1259 signal (SIGXCPU
, fatal_error_signal
);
1261 signal (SIGIOINT
, fatal_error_signal
);
1263 signal (SIGGRANT
, fatal_error_signal
);
1264 signal (SIGRETRACT
, fatal_error_signal
);
1265 signal (SIGSOUND
, fatal_error_signal
);
1266 signal (SIGMSG
, fatal_error_signal
);
1270 noninteractive1
= noninteractive
;
1272 /* Perform basic initializations (not merely interning symbols). */
1279 init_charset_once ();
1280 init_coding_once ();
1281 init_syntax_once (); /* Create standard syntax table. */
1282 init_category_once (); /* Create standard category table. */
1283 /* Must be done before init_buffer. */
1284 init_casetab_once ();
1285 init_buffer_once (); /* Create buffer table and some buffers. */
1286 init_minibuf_once (); /* Create list of minibuffers. */
1287 /* Must precede init_window_once. */
1289 /* Call syms_of_xfaces before init_window_once because that
1290 function creates Vterminal_frame. Termcap frames now use
1291 faces, and the face implementation uses some symbols as
1294 /* Call syms_of_keyboard before init_window_once because
1295 keyboard sets up symbols that include some face names that
1296 the X support will want to use. This can happen when
1297 CANNOT_DUMP is defined. */
1298 syms_of_keyboard ();
1301 /* init_window_once calls make_terminal_frame which on Mac OS
1302 creates a full-fledge output_mac type frame. This does not
1303 work correctly before syms_of_textprop, syms_of_macfns,
1304 syms_of_ccl, syms_of_fontset, syms_of_xterm, syms_of_search,
1305 syms_of_frame, mac_term_init, and init_keyboard have already
1307 syms_of_textprop ();
1313 syms_of_macselect ();
1319 mac_term_init (build_string ("Mac"), NULL
, NULL
);
1323 init_window_once (); /* Init the window system. */
1324 init_fileio_once (); /* Must precede any path manipulation. */
1325 #ifdef HAVE_WINDOW_SYSTEM
1326 init_fringe_once (); /* Swap bitmaps if necessary. */
1327 #endif /* HAVE_WINDOW_SYSTEM */
1332 if (do_initial_setlocale
)
1335 Vsystem_messages_locale
= Vprevious_system_messages_locale
;
1336 Vsystem_time_locale
= Vprevious_system_time_locale
;
1341 #ifdef CLASH_DETECTION
1347 running_asynch_code
= 0;
1349 /* Handle --unibyte and the EMACS_UNIBYTE envvar,
1350 but not while dumping. */
1353 int inhibit_unibyte
= 0;
1355 /* --multibyte overrides EMACS_UNIBYTE. */
1356 if (argmatch (argv
, argc
, "-no-unibyte", "--no-unibyte", 4, NULL
, &skip_args
)
1357 || argmatch (argv
, argc
, "-multibyte", "--multibyte", 4, NULL
, &skip_args
)
1358 /* Ignore EMACS_UNIBYTE before dumping. */
1359 || (!initialized
&& noninteractive
))
1360 inhibit_unibyte
= 1;
1362 /* --unibyte requests that we set up to do everything with single-byte
1363 buffers and strings. We need to handle this before calling
1364 init_lread, init_editfns and other places that generate Lisp strings
1365 from text in the environment. */
1366 /* Actually this shouldn't be needed as of 20.4 in a generally
1367 unibyte environment. As handa says, environment values
1368 aren't now decoded; also existing buffers are now made
1369 unibyte during startup if .emacs sets unibyte. Tested with
1370 8-bit data in environment variables and /etc/passwd, setting
1371 unibyte and Latin-1 in .emacs. -- Dave Love */
1372 if (argmatch (argv
, argc
, "-unibyte", "--unibyte", 4, NULL
, &skip_args
)
1373 || argmatch (argv
, argc
, "-no-multibyte", "--no-multibyte", 4, NULL
, &skip_args
)
1374 || (getenv ("EMACS_UNIBYTE") && !inhibit_unibyte
))
1376 Lisp_Object old_log_max
;
1377 Lisp_Object symbol
, tail
;
1379 symbol
= intern ("default-enable-multibyte-characters");
1380 Fset (symbol
, Qnil
);
1384 /* Erase pre-dump messages in *Messages* now so no abort. */
1385 old_log_max
= Vmessage_log_max
;
1386 XSETFASTINT (Vmessage_log_max
, 0);
1387 message_dolog ("", 0, 1, 0);
1388 Vmessage_log_max
= old_log_max
;
1391 for (tail
= Vbuffer_alist
; CONSP (tail
);
1396 buffer
= Fcdr (XCAR (tail
));
1397 /* Verify that all buffers are empty now, as they
1399 if (BUF_Z (XBUFFER (buffer
)) > BUF_BEG (XBUFFER (buffer
)))
1401 /* It is safe to do this crudely in an empty buffer. */
1402 XBUFFER (buffer
)->enable_multibyte_characters
= Qnil
;
1408 = argmatch (argv
, argc
, "-nl", "--no-loadup", 6, NULL
, &skip_args
);
1411 #ifdef HAVE_X_WINDOWS
1412 /* Stupid kludge to catch command-line display spec. We can't
1413 handle this argument entirely in window system dependent code
1414 because we don't even know which window system dependent code
1415 to run until we've recognized this argument. */
1417 char *displayname
= 0;
1418 int count_before
= skip_args
;
1420 /* Skip any number of -d options, but only use the last one. */
1423 int count_before_this
= skip_args
;
1425 if (argmatch (argv
, argc
, "-d", "--display", 3, &displayname
, &skip_args
))
1427 else if (argmatch (argv
, argc
, "-display", 0, 3, &displayname
, &skip_args
))
1432 count_before
= count_before_this
;
1435 /* If we have the form --display=NAME,
1436 convert it into -d name.
1437 This requires inserting a new element into argv. */
1438 if (displayname
!= 0 && skip_args
- count_before
== 1)
1440 char **new = (char **) xmalloc (sizeof (char *) * (argc
+ 2));
1443 for (j
= 0; j
< count_before
+ 1; j
++)
1445 new[count_before
+ 1] = "-d";
1446 new[count_before
+ 2] = displayname
;
1447 for (j
= count_before
+ 2; j
<argc
; j
++)
1448 new[j
+ 1] = argv
[j
];
1452 /* Change --display to -d, when its arg is separate. */
1453 else if (displayname
!= 0 && skip_args
> count_before
1454 && argv
[count_before
+ 1][1] == '-')
1455 argv
[count_before
+ 1] = "-d";
1457 /* Don't actually discard this arg. */
1458 skip_args
= count_before
;
1462 /* argmatch must not be used after here,
1463 except when bulding temacs
1464 because the -d argument has not been skipped in skip_args. */
1467 /* Call early 'cause init_environment needs it. */
1469 /* Set defaults for several environment variables. */
1471 init_environment (argc
, argv
, skip_args
);
1478 /* Initialize environment from registry settings. */
1479 init_environment (argv
);
1480 init_ntproc (); /* must precede init_editfns. */
1483 #if defined (MAC_OSX) && defined (HAVE_CARBON)
1485 init_mac_osx_environment ();
1488 /* egetenv is a pretty low-level facility, which may get called in
1489 many circumstances; it seems flimsy to put off initializing it
1490 until calling init_callproc. */
1491 set_process_environment ();
1492 /* AIX crashes are reported in system versions 3.2.3 and 3.2.4
1493 if this is not done. Do it after set_process_environment so that we
1494 don't pollute Vprocess_environment. */
1495 /* Setting LANG here will defeat the startup locale processing... */
1500 init_buffer (); /* Init default directory of main buffer. */
1502 init_callproc_1 (); /* Must precede init_cmdargs and init_sys_modes. */
1503 init_cmdargs (argc
, argv
, skip_args
); /* Must precede init_lread. */
1507 /* Erase any pre-dump messages in the message log, to avoid confusion. */
1508 Lisp_Object old_log_max
;
1509 old_log_max
= Vmessage_log_max
;
1510 XSETFASTINT (Vmessage_log_max
, 0);
1511 message_dolog ("", 0, 1, 0);
1512 Vmessage_log_max
= old_log_max
;
1515 init_callproc (); /* Must follow init_cmdargs but not init_sys_modes. */
1518 /* Intern the names of all standard functions and variables;
1519 define standard keys. */
1523 /* The basic levels of Lisp must come first. */
1524 /* And data must come first of all
1525 for the sake of symbols like error-message. */
1527 /* Called before init_window_once for Mac OS Classic. */
1535 syms_of_floatfns ();
1539 syms_of_bytecode ();
1541 syms_of_casefiddle ();
1543 syms_of_callproc ();
1544 syms_of_category ();
1546 /* Called before init_window_once for Mac OS Classic. */
1551 #ifndef NO_DIR_LIBRARY
1553 #endif /* not NO_DIR_LIBRARY */
1559 syms_of_coding (); /* This should be after syms_of_fileio. */
1560 #ifdef CLASH_DETECTION
1561 syms_of_filelock ();
1562 #endif /* CLASH_DETECTION */
1571 /* Called before init_window_once for Mac OS Classic. */
1582 /* Called before init_window_once for Mac OS Classic. */
1583 syms_of_textprop ();
1585 syms_of_composite ();
1591 #endif /* WINDOWSNT */
1594 #ifdef HAVE_WINDOW_SYSTEM
1597 #endif /* HAVE_WINDOW_SYSTEM */
1598 #ifdef HAVE_X_WINDOWS
1608 #endif /* HAVE_X_WINDOWS */
1612 /* Called before init_window_once for Mac OS Classic. */
1620 syms_of_w32select ();
1623 #endif /* HAVE_NTGUI */
1625 #if defined (MAC_OSX) && defined (HAVE_CARBON)
1629 syms_of_macselect ();
1631 #endif /* MAC_OSX && HAVE_CARBON */
1641 keys_of_casefiddle ();
1644 keys_of_keyboard ();
1651 /* Initialization that must be done even if the global variable
1652 initialized is non zero. */
1654 globals_of_w32fns ();
1655 globals_of_w32menu ();
1656 globals_of_w32select ();
1657 #endif /* HAVE_NTGUI */
1660 if (!noninteractive
)
1663 init_vms_input ();/* init_display calls get_frame_size, that needs this. */
1665 init_display (); /* Determine terminal type. init_sys_modes uses results. */
1668 /* Called before init_window_once for Mac OS Classic. */
1669 init_keyboard (); /* This too must precede init_sys_modes. */
1672 init_vmsproc (); /* And this too. */
1674 init_sys_modes (); /* Init system terminal modes (RAW or CBREAK, etc.). */
1677 #ifdef HAVE_WINDOW_SYSTEM
1680 #endif /* HAVE_WINDOW_SYSTEM */
1696 /* Handle -l loadup, args passed by Makefile. */
1697 if (argmatch (argv
, argc
, "-l", "--load", 3, &file
, &skip_args
))
1698 Vtop_level
= Fcons (intern ("load"),
1699 Fcons (build_string (file
), Qnil
));
1700 /* Unless next switch is -nl, load "loadup.el" first thing. */
1702 Vtop_level
= Fcons (intern ("load"),
1703 Fcons (build_string ("loadup.el"), Qnil
));
1710 /* If the execution TZ happens to be the same as the dump TZ,
1711 change it to some other value and then change it back,
1712 to force the underlying implementation to reload the TZ info.
1713 This is needed on implementations that load TZ info from files,
1714 since the TZ file contents may differ between dump and execution. */
1715 char *tz
= getenv ("TZ");
1716 if (tz
&& !strcmp (tz
, dump_tz
))
1726 /* Set up for profiling. This is known to work on FreeBSD,
1727 GNU/Linux and MinGW. It might work on some other systems too.
1728 Give it a try and tell us if it works on your system. To compile
1729 for profiling, add -pg to the switches your platform uses in
1730 CFLAGS and LDFLAGS. For example:
1731 `make CFLAGS="-pg -g -O -DPROFILING=1" LDFLAGS="-pg -g"'. */
1732 #if defined (__FreeBSD__) || defined (GNU_LINUX) || defined(__MINGW32__)
1736 extern void _mcleanup ();
1738 extern unsigned char etext
asm ("etext");
1742 extern void safe_bcopy ();
1743 extern void dump_opcode_frequencies ();
1746 /* This uses safe_bcopy because that function comes first in the
1747 Emacs executable. It might be better to use something that
1748 gives the start of the text segment, but start_of_text is not
1749 defined on all systems now. */
1750 monstartup (safe_bcopy
, &etext
);
1759 #ifdef LOCALTIME_CACHE
1760 /* Some versions of localtime have a bug. They cache the value of the time
1761 zone rather than looking it up every time. Since localtime() is
1762 called to bolt the undumping time into the undumped emacs, this
1763 results in localtime ignoring the TZ environment variable.
1764 This flushes the new TZ value into localtime. */
1766 #endif /* defined (LOCALTIME_CACHE) */
1768 /* Enter editor command loop. This never returns. */
1774 /* Sort the args so we can find the most important ones
1775 at the beginning of argv. */
1777 /* First, here's a table of all the standard options. */
1779 struct standard_args
1787 struct standard_args standard_args
[] =
1789 { "-version", "--version", 150, 0 },
1791 { "-nl", "--no-shared-memory", 140, 0 },
1794 { "-map", "--map-data", 130, 0 },
1796 { "-t", "--terminal", 120, 1 },
1797 { "-nw", "--no-window-system", 110, 0 },
1798 { "-nw", "--no-windows", 110, 0 },
1799 { "-batch", "--batch", 100, 0 },
1800 { "-script", "--script", 100, 1 },
1801 { "-help", "--help", 90, 0 },
1802 { "-no-unibyte", "--no-unibyte", 83, 0 },
1803 { "-multibyte", "--multibyte", 82, 0 },
1804 { "-unibyte", "--unibyte", 81, 0 },
1805 { "-no-multibyte", "--no-multibyte", 80, 0 },
1806 { "-nl", "--no-loadup", 70, 0 },
1807 /* -d must come last before the options handled in startup.el. */
1808 { "-d", "--display", 60, 1 },
1809 { "-display", 0, 60, 1 },
1810 /* Now for the options handled in startup.el. */
1811 { "-Q", "--quick", 55, 0 },
1812 { "-quick", 0, 55, 0 },
1813 { "-q", "--no-init-file", 50, 0 },
1814 { "-no-init-file", 0, 50, 0 },
1815 { "-no-site-file", "--no-site-file", 40, 0 },
1816 { "-u", "--user", 30, 1 },
1817 { "-user", 0, 30, 1 },
1818 { "-debug-init", "--debug-init", 20, 0 },
1819 { "-nbi", "--no-bitmap-icon", 15, 0 },
1820 { "-iconic", "--iconic", 15, 0 },
1821 { "-D", "--basic-display", 12, 0},
1822 { "-basic-display", 0, 12, 0},
1823 { "-bg", "--background-color", 10, 1 },
1824 { "-background", 0, 10, 1 },
1825 { "-fg", "--foreground-color", 10, 1 },
1826 { "-foreground", 0, 10, 1 },
1827 { "-bd", "--border-color", 10, 1 },
1828 { "-bw", "--border-width", 10, 1 },
1829 { "-ib", "--internal-border", 10, 1 },
1830 { "-ms", "--mouse-color", 10, 1 },
1831 { "-cr", "--cursor-color", 10, 1 },
1832 { "-nbc", "--no-blinking-cursor", 10, 0 },
1833 { "-fn", "--font", 10, 1 },
1834 { "-font", 0, 10, 1 },
1835 { "-fs", "--fullscreen", 10, 0 },
1836 { "-fw", "--fullwidth", 10, 0 },
1837 { "-fh", "--fullheight", 10, 0 },
1838 { "-g", "--geometry", 10, 1 },
1839 { "-geometry", 0, 10, 1 },
1840 { "-T", "--title", 10, 1 },
1841 { "-title", 0, 10, 1 },
1842 { "-name", "--name", 10, 1 },
1843 { "-xrm", "--xrm", 10, 1 },
1844 { "-r", "--reverse-video", 5, 0 },
1846 { "-reverse", 0, 5, 0 },
1847 { "-hb", "--horizontal-scroll-bars", 5, 0 },
1848 { "-vb", "--vertical-scroll-bars", 5, 0 },
1849 { "-color", "--color", 5, 0},
1850 { "-no-splash", "--no-splash", 3, 0 },
1851 { "-no-desktop", "--no-desktop", 3, 0 },
1852 /* These have the same priority as ordinary file name args,
1853 so they are not reordered with respect to those. */
1854 { "-L", "--directory", 0, 1 },
1855 { "-directory", 0, 0, 1 },
1856 { "-l", "--load", 0, 1 },
1857 { "-load", 0, 0, 1 },
1858 { "-scriptload", "--scriptload", 0, 1 },
1859 { "-f", "--funcall", 0, 1 },
1860 { "-funcall", 0, 0, 1 },
1861 { "-eval", "--eval", 0, 1 },
1862 { "-execute", "--execute", 0, 1 },
1863 { "-find-file", "--find-file", 0, 1 },
1864 { "-visit", "--visit", 0, 1 },
1865 { "-file", "--file", 0, 1 },
1866 { "-insert", "--insert", 0, 1 },
1867 /* This should be processed after ordinary file name args and the like. */
1868 { "-kill", "--kill", -10, 0 },
1871 /* Reorder the elements of ARGV (assumed to have ARGC elements)
1872 so that the highest priority ones come first.
1873 Do not change the order of elements of equal priority.
1874 If an option takes an argument, keep it and its argument together.
1876 If an option that takes no argument appears more
1877 than once, eliminate all but one copy of it. */
1880 sort_args (argc
, argv
)
1884 char **new = (char **) xmalloc (sizeof (char *) * argc
);
1885 /* For each element of argv,
1886 the corresponding element of options is:
1887 0 for an option that takes no arguments,
1888 1 for an option that takes one argument, etc.
1889 -1 for an ordinary non-option argument. */
1890 int *options
= (int *) xmalloc (sizeof (int) * argc
);
1891 int *priority
= (int *) xmalloc (sizeof (int) * argc
);
1893 int incoming_used
= 1;
1897 /* Categorize all the options,
1898 and figure out which argv elts are option arguments. */
1899 for (from
= 1; from
< argc
; from
++)
1903 if (argv
[from
][0] == '-')
1908 /* If we have found "--", don't consider
1909 any more arguments as options. */
1910 if (argv
[from
][1] == '-' && argv
[from
][2] == 0)
1912 /* Leave the "--", and everything following it, at the end. */
1913 for (; from
< argc
; from
++)
1915 priority
[from
] = -100;
1921 /* Look for a match with a known old-fashioned option. */
1922 for (i
= 0; i
< sizeof (standard_args
) / sizeof (standard_args
[0]); i
++)
1923 if (!strcmp (argv
[from
], standard_args
[i
].name
))
1925 options
[from
] = standard_args
[i
].nargs
;
1926 priority
[from
] = standard_args
[i
].priority
;
1927 if (from
+ standard_args
[i
].nargs
>= argc
)
1928 fatal ("Option `%s' requires an argument\n", argv
[from
]);
1929 from
+= standard_args
[i
].nargs
;
1933 /* Look for a match with a known long option.
1934 MATCH is -1 if no match so far, -2 if two or more matches so far,
1935 >= 0 (the table index of the match) if just one match so far. */
1936 if (argv
[from
][1] == '-')
1939 thislen
= strlen (argv
[from
]);
1940 equals
= index (argv
[from
], '=');
1942 thislen
= equals
- argv
[from
];
1945 i
< sizeof (standard_args
) / sizeof (standard_args
[0]); i
++)
1946 if (standard_args
[i
].longname
1947 && !strncmp (argv
[from
], standard_args
[i
].longname
,
1956 /* If we found exactly one match, use that. */
1959 options
[from
] = standard_args
[match
].nargs
;
1960 priority
[from
] = standard_args
[match
].priority
;
1961 /* If --OPTION=VALUE syntax is used,
1962 this option uses just one argv element. */
1965 if (from
+ options
[from
] >= argc
)
1966 fatal ("Option `%s' requires an argument\n", argv
[from
]);
1967 from
+= options
[from
];
1974 /* Copy the arguments, in order of decreasing priority, to NEW. */
1976 while (incoming_used
< argc
)
1979 int best_priority
= -9999;
1981 /* Find the highest priority remaining option.
1982 If several have equal priority, take the first of them. */
1983 for (from
= 1; from
< argc
; from
++)
1985 if (argv
[from
] != 0 && priority
[from
] > best_priority
)
1987 best_priority
= priority
[from
];
1990 /* Skip option arguments--they are tied to the options. */
1991 if (options
[from
] > 0)
1992 from
+= options
[from
];
1998 /* Copy the highest priority remaining option, with its args, to NEW.
1999 Unless it is a duplicate of the previous one. */
2000 if (! (options
[best
] == 0
2001 && ! strcmp (new[to
- 1], argv
[best
])))
2003 new[to
++] = argv
[best
];
2004 for (i
= 0; i
< options
[best
]; i
++)
2005 new[to
++] = argv
[best
+ i
+ 1];
2008 incoming_used
+= 1 + (options
[best
] > 0 ? options
[best
] : 0);
2010 /* Clear out this option in ARGV. */
2012 for (i
= 0; i
< options
[best
]; i
++)
2013 argv
[best
+ i
+ 1] = 0;
2016 /* If duplicate options were deleted, fill up extra space with null ptrs. */
2020 bcopy (new, argv
, sizeof (char *) * argc
);
2027 DEFUN ("kill-emacs", Fkill_emacs
, Skill_emacs
, 0, 1, "P",
2028 doc
: /* Exit the Emacs job and kill it.
2029 If ARG is an integer, return ARG as the exit program code.
2030 If ARG is a string, stuff it as keyboard input.
2032 The value of `kill-emacs-hook', if not void,
2033 is a list of functions (of no args),
2034 all of which are called before Emacs is actually killed. */)
2038 struct gcpro gcpro1
;
2045 if (!NILP (Vrun_hooks
) && !noninteractive
)
2046 call1 (Vrun_hooks
, intern ("kill-emacs-hook"));
2050 /* Is it really necessary to do this deassign
2051 when we are going to exit anyway? */
2056 shut_down_emacs (0, 0, STRINGP (arg
) ? arg
: Qnil
);
2058 /* If we have an auto-save list file,
2059 kill it because we are exiting Emacs deliberately (not crashing).
2060 Do it after shut_down_emacs, which does an auto-save. */
2061 if (STRINGP (Vauto_save_list_file_name
))
2062 unlink (SDATA (Vauto_save_list_file_name
));
2064 exit (INTEGERP (arg
) ? XINT (arg
) : EXIT_SUCCESS
);
2070 /* Perform an orderly shutdown of Emacs. Autosave any modified
2071 buffers, kill any child processes, clean up the terminal modes (if
2072 we're in the foreground), and other stuff like that. Don't perform
2073 any redisplay; this may be called when Emacs is shutting down in
2074 the background, or after its X connection has died.
2076 If SIG is a signal number, print a message for it.
2078 This is called by fatal signal handlers, X protocol error handlers,
2082 shut_down_emacs (sig
, no_x
, stuff
)
2086 /* Prevent running of hooks from now on. */
2089 /* Don't update display from now on. */
2090 Vinhibit_redisplay
= Qt
;
2092 /* If we are controlling the terminal, reset terminal modes. */
2093 #ifdef EMACS_HAVE_TTY_PGRP
2095 int pgrp
= EMACS_GETPGRP (0);
2098 if (EMACS_GET_TTY_PGRP (0, &tpgrp
) != -1
2103 if (sig
&& sig
!= SIGTERM
)
2104 fprintf (stderr
, "Fatal error (%d)", sig
);
2112 stuff_buffered_input (stuff
);
2115 inhibit_sentinels
= 1;
2117 kill_buffer_processes (Qnil
);
2118 Fdo_auto_save (Qt
, Qnil
);
2120 #ifdef CLASH_DETECTION
2121 unlock_all_files ();
2125 kill_vms_processes ();
2128 #if 0 /* This triggers a bug in XCloseDisplay and is not needed. */
2129 #ifdef HAVE_X_WINDOWS
2130 /* It's not safe to call intern here. Maybe we are crashing. */
2131 if (!noninteractive
&& SYMBOLP (Vwindow_system
)
2132 && SCHARS (SYMBOL_NAME (Vwindow_system
)) == 1
2133 && SREF (SYMBOL_NAME (Vwindow_system
), 0) == 'x'
2135 Fx_close_current_connection ();
2136 #endif /* HAVE_X_WINDOWS */
2140 /* There is a tendency for a SIGIO signal to arrive within exit,
2141 and cause a SIGHUP because the input descriptor is already closed. */
2143 signal (SIGIO
, SIG_IGN
);
2150 /* Do this only if terminating normally, we want glyph matrices
2151 etc. in a core dump. */
2152 if (sig
== 0 || sig
== SIGTERM
)
2154 check_glyph_memory ();
2155 check_message_stack ();
2169 DEFUN ("dump-emacs-data", Fdump_emacs_data
, Sdump_emacs_data
, 1, 1, 0,
2170 doc
: /* Dump current state of Emacs into data file FILENAME.
2171 This function exists on systems that use HAVE_SHM. */)
2173 Lisp_Object filename
;
2175 extern char my_edata
[];
2179 CHECK_STRING (filename
);
2180 filename
= Fexpand_file_name (filename
, Qnil
);
2183 Vpurify_flag
= Qnil
;
2186 /* Tell malloc where start of impure now is. */
2187 /* Also arrange for warnings when nearly out of space. */
2188 #ifndef SYSTEM_MALLOC
2189 memory_warnings (my_edata
, malloc_warning
);
2191 map_out_data (SDATA (filename
));
2198 #else /* not HAVE_SHM */
2200 DEFUN ("dump-emacs", Fdump_emacs
, Sdump_emacs
, 2, 2, 0,
2201 doc
: /* Dump current state of Emacs into executable file FILENAME.
2202 Take symbols from SYMFILE (presumably the file you executed to run Emacs).
2203 This is used in the file `loadup.el' when building Emacs.
2205 You must run Emacs in batch mode in order to dump it. */)
2207 Lisp_Object filename
, symfile
;
2209 extern char my_edata
[];
2212 int count
= SPECPDL_INDEX ();
2216 if (! noninteractive
)
2217 error ("Dumping Emacs works only in batch mode");
2220 if (heap_bss_diff
> MAX_HEAP_BSS_DIFF
)
2222 fprintf (stderr
, "**************************************************\n");
2223 fprintf (stderr
, "Warning: Your system has a gap between BSS and the\n");
2224 fprintf (stderr
, "heap (%lu byte). This usually means that exec-shield\n",
2226 fprintf (stderr
, "or something similar is in effect. The dump may\n");
2227 fprintf (stderr
, "fail because of this. See the section about \n");
2228 fprintf (stderr
, "exec-shield in etc/PROBLEMS for more information.\n");
2229 fprintf (stderr
, "**************************************************\n");
2231 #endif /* GNU_LINUX */
2233 /* Bind `command-line-processed' to nil before dumping,
2234 so that the dumped Emacs will process its command line
2235 and set up to work with X windows if appropriate. */
2236 symbol
= intern ("command-line-processed");
2237 specbind (symbol
, Qnil
);
2239 CHECK_STRING (filename
);
2240 filename
= Fexpand_file_name (filename
, Qnil
);
2241 if (!NILP (symfile
))
2243 CHECK_STRING (symfile
);
2244 if (SCHARS (symfile
))
2245 symfile
= Fexpand_file_name (symfile
, Qnil
);
2249 Vpurify_flag
= Qnil
;
2252 set_time_zone_rule (dump_tz
);
2253 #ifndef LOCALTIME_CACHE
2254 /* Force a tz reload, since set_time_zone_rule doesn't. */
2261 mapout_data (SDATA (filename
));
2263 /* Tell malloc where start of impure now is. */
2264 /* Also arrange for warnings when nearly out of space. */
2265 #ifndef SYSTEM_MALLOC
2267 /* On Windows, this was done before dumping, and that once suffices.
2268 Meanwhile, my_edata is not valid on Windows. */
2269 memory_warnings (my_edata
, malloc_warning
);
2270 #endif /* not WINDOWSNT */
2272 #if !defined (SYSTEM_MALLOC) && defined (HAVE_GTK_AND_PTHREAD) && !defined SYNC_INPUT
2273 /* Pthread may call malloc before main, and then we will get an endless
2274 loop, because pthread_self (see alloc.c) calls malloc the first time
2275 it is called on some systems. */
2276 reset_malloc_hooks ();
2278 #ifdef DOUG_LEA_MALLOC
2279 malloc_state_ptr
= malloc_get_state ();
2282 #ifdef USE_MMAP_FOR_BUFFERS
2285 unexec (SDATA (filename
),
2286 !NILP (symfile
) ? SDATA (symfile
) : 0, my_edata
, 0, 0);
2287 #ifdef USE_MMAP_FOR_BUFFERS
2290 #ifdef DOUG_LEA_MALLOC
2291 free (malloc_state_ptr
);
2293 #endif /* not VMS */
2297 return unbind_to (count
, Qnil
);
2300 #endif /* not HAVE_SHM */
2302 #endif /* not CANNOT_DUMP */
2305 /* Recover from setlocale (LC_ALL, ""). */
2309 /* The Emacs Lisp reader needs LC_NUMERIC to be "C",
2310 so that numbers are read and printed properly for Emacs Lisp. */
2311 setlocale (LC_NUMERIC
, "C");
2314 /* Set system locale CATEGORY, with previous locale *PLOCALE, to
2317 synchronize_locale (category
, plocale
, desired_locale
)
2319 Lisp_Object
*plocale
;
2320 Lisp_Object desired_locale
;
2322 if (! EQ (*plocale
, desired_locale
))
2324 *plocale
= desired_locale
;
2325 setlocale (category
, (STRINGP (desired_locale
)
2326 ? (char *) SDATA (desired_locale
)
2331 /* Set system time locale to match Vsystem_time_locale, if possible. */
2333 synchronize_system_time_locale ()
2335 synchronize_locale (LC_TIME
, &Vprevious_system_time_locale
,
2336 Vsystem_time_locale
);
2339 /* Set system messages locale to match Vsystem_messages_locale, if
2342 synchronize_system_messages_locale ()
2345 synchronize_locale (LC_MESSAGES
, &Vprevious_system_messages_locale
,
2346 Vsystem_messages_locale
);
2349 #endif /* HAVE_SETLOCALE */
2356 decode_env_path (evarname
, defalt
)
2357 char *evarname
, *defalt
;
2359 register char *path
, *p
;
2360 Lisp_Object lpath
, element
, tem
;
2362 /* It's okay to use getenv here, because this function is only used
2363 to initialize variables when Emacs starts up, and isn't called
2366 path
= (char *) getenv (evarname
);
2372 /* Ensure values from the environment use the proper directory separator. */
2375 p
= alloca (strlen (path
) + 1);
2379 if ('/' == DIRECTORY_SEP
)
2380 dostounix_filename (path
);
2382 unixtodos_filename (path
);
2388 p
= index (path
, SEPCHAR
);
2389 if (!p
) p
= path
+ strlen (path
);
2390 element
= (p
- path
? make_string (path
, p
- path
)
2391 : build_string ("."));
2393 /* Add /: to the front of the name
2394 if it would otherwise be treated as magic. */
2395 tem
= Ffind_file_name_handler (element
, Qt
);
2397 /* However, if the handler says "I'm safe",
2398 don't bother adding /:. */
2402 prop
= Fget (tem
, intern ("safe-magic"));
2408 element
= concat2 (build_string ("/:"), element
);
2410 lpath
= Fcons (element
, lpath
);
2416 return Fnreverse (lpath
);
2422 Qfile_name_handler_alist
= intern ("file-name-handler-alist");
2423 staticpro (&Qfile_name_handler_alist
);
2427 defsubr (&Sdump_emacs_data
);
2429 defsubr (&Sdump_emacs
);
2433 defsubr (&Skill_emacs
);
2435 defsubr (&Sinvocation_name
);
2436 defsubr (&Sinvocation_directory
);
2438 DEFVAR_LISP ("command-line-args", &Vcommand_line_args
,
2439 doc
: /* Args passed by shell to Emacs, as a list of strings.
2440 Many arguments are deleted from the list as they are processed. */);
2442 DEFVAR_LISP ("system-type", &Vsystem_type
,
2443 doc
: /* Value is symbol indicating type of operating system you are using.
2445 `gnu/linux' compiled for a GNU/Linux system.
2446 `darwin' compiled for Darwin (GNU-Darwin, Mac OS X, ...).
2447 `macos' compiled for Mac OS 9.
2448 `ms-dos' compiled as an MS-DOS application.
2449 `windows-nt' compiled as a native W32 application.
2450 `cygwin' compiled using the Cygwin library.
2452 `axp-vms' compiled for a (Open)VMS system.
2453 Anything else indicates some sort of Unix system. */);
2454 Vsystem_type
= intern (SYSTEM_TYPE
);
2456 DEFVAR_LISP ("system-configuration", &Vsystem_configuration
,
2457 doc
: /* Value is string indicating configuration Emacs was built for.
2458 On MS-Windows, the value reflects the OS flavor and version on which
2459 Emacs is running. */);
2460 Vsystem_configuration
= build_string (EMACS_CONFIGURATION
);
2462 DEFVAR_LISP ("system-configuration-options", &Vsystem_configuration_options
,
2463 doc
: /* String containing the configuration options Emacs was built with. */);
2464 Vsystem_configuration_options
= build_string (EMACS_CONFIG_OPTIONS
);
2466 DEFVAR_BOOL ("noninteractive", &noninteractive1
,
2467 doc
: /* Non-nil means Emacs is running without interactive terminal. */);
2469 DEFVAR_LISP ("kill-emacs-hook", &Vkill_emacs_hook
,
2470 doc
: /* Hook to be run when `kill-emacs' is called.
2471 Since `kill-emacs' may be invoked when the terminal is disconnected (or
2472 in other similar situations), functions placed on this hook should not
2473 expect to be able to interact with the user. To ask for confirmation,
2474 see `kill-emacs-query-functions' instead.
2476 The hook is not run in batch mode, i.e., if `noninteractive' is non-nil. */);
2477 Vkill_emacs_hook
= Qnil
;
2479 empty_string
= build_string ("");
2480 staticpro (&empty_string
);
2482 DEFVAR_INT ("emacs-priority", &emacs_priority
,
2483 doc
: /* Priority for Emacs to run at.
2484 This value is effective only if set before Emacs is dumped,
2485 and only if the Emacs executable is installed with setuid to permit
2486 it to change priority. (Emacs sets its uid back to the real uid.)
2487 Currently, you need to define SET_EMACS_PRIORITY in `config.h'
2488 before you compile Emacs, to enable the code for this feature. */);
2491 DEFVAR_LISP ("path-separator", &Vpath_separator
,
2492 doc
: /* String containing the character that separates directories in
2493 search paths, such as PATH and other similar environment variables. */);
2496 Vpath_separator
= make_string (&c
, 1);
2499 DEFVAR_LISP ("invocation-name", &Vinvocation_name
,
2500 doc
: /* The program name that was used to run Emacs.
2501 Any directory names are omitted. */);
2503 DEFVAR_LISP ("invocation-directory", &Vinvocation_directory
,
2504 doc
: /* The directory in which the Emacs executable was found, to run it.
2505 The value is nil if that directory's name is not known. */);
2507 DEFVAR_LISP ("installation-directory", &Vinstallation_directory
,
2508 doc
: /* A directory within which to look for the `lib-src' and `etc' directories.
2509 This is non-nil when we can't find those directories in their standard
2510 installed locations, but we can find them near where the Emacs executable
2512 Vinstallation_directory
= Qnil
;
2514 DEFVAR_LISP ("system-messages-locale", &Vsystem_messages_locale
,
2515 doc
: /* System locale for messages. */);
2516 Vsystem_messages_locale
= Qnil
;
2518 DEFVAR_LISP ("previous-system-messages-locale",
2519 &Vprevious_system_messages_locale
,
2520 doc
: /* Most recently used system locale for messages. */);
2521 Vprevious_system_messages_locale
= Qnil
;
2523 DEFVAR_LISP ("system-time-locale", &Vsystem_time_locale
,
2524 doc
: /* System locale for time. */);
2525 Vsystem_time_locale
= Qnil
;
2527 DEFVAR_LISP ("previous-system-time-locale", &Vprevious_system_time_locale
,
2528 doc
: /* Most recently used system locale for time. */);
2529 Vprevious_system_time_locale
= Qnil
;
2532 /* arch-tag: 7bfd356a-c720-4612-8ab6-aa4222931c2e
2533 (do not change this comment) */