1 /* Fully extensible Emacs, running on Unix, intended for GNU.
2 Copyright (C) 1985, 1986, 1987, 1993, 1994, 1995, 1997, 1998, 1999,
3 2001, 2002, 2003, 2004, 2005, 2006, 2007, 2008
4 Free Software Foundation, Inc.
6 This file is part of GNU Emacs.
8 GNU Emacs is free software: you can redistribute it and/or modify
9 it under the terms of the GNU General Public License as published by
10 the Free Software Foundation, either version 3 of the License, or
11 (at your option) any later version.
13 GNU Emacs is distributed in the hope that it will be useful,
14 but WITHOUT ANY WARRANTY; without even the implied warranty of
15 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
16 GNU General Public License for more details.
18 You should have received a copy of the GNU General Public License
19 along with GNU Emacs. If not, see <http://www.gnu.org/licenses/>. */
27 #include <sys/types.h>
39 #include <sys/ioctl.h>
44 #include <windows.h> /* just for w32.h */
46 #include "w32heap.h" /* for prototype of sbrk */
51 #include "intervals.h"
56 #include "blockinput.h"
57 #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 Vinitial_window_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 go to line LINE in next FILE\n\
284 +LINE:COLUMN go to line LINE, column COLUMN, in next FILE\n\
285 --directory, -L DIR add DIR to variable load-path\n\
286 --eval EXPR evaluate Emacs Lisp expression EXPR\n\
287 --execute EXPR evaluate Emacs Lisp expression EXPR\n\
288 --file FILE visit FILE using find-file\n\
289 --find-file FILE visit FILE using find-file\n\
290 --funcall, -f FUNC call Emacs Lisp function FUNC with no arguments\n\
291 --insert FILE insert contents of FILE into current buffer\n\
292 --kill exit without asking for confirmation\n\
293 --load, -l FILE load Emacs Lisp FILE using the load function\n\
294 --visit FILE visit FILE using find-file\n\
300 --background-color, -bg COLOR window background color\n\
301 --basic-display, -D disable many display features;\n\
302 used for debugging Emacs\n\
303 --border-color, -bd COLOR main border color\n\
304 --border-width, -bw WIDTH width of main border\n\
305 --color, --color=MODE override color mode for character terminals;\n\
306 MODE defaults to `auto', and can also\n\
307 be `never', `auto', `always',\n\
308 or a mode name like `ansi8'\n\
309 --cursor-color, -cr COLOR color of the Emacs cursor indicating point\n\
310 --font, -fn FONT default font; must be fixed-width\n\
311 --foreground-color, -fg COLOR window foreground color\n\
312 --fullheight, -fh make the first frame high as the screen\n\
313 --fullscreen, -fs make first frame fullscreen\n\
314 --fullwidth, -fw make the first frame wide as the screen\n\
315 --geometry, -g GEOMETRY window geometry\n\
316 --no-bitmap-icon, -nbi do not use picture of gnu for Emacs icon\n\
317 --iconic start Emacs in iconified state\n\
318 --internal-border, -ib WIDTH width between text and main border\n\
319 --line-spacing, -lsp PIXELS additional space to put between lines\n\
320 --mouse-color, -ms COLOR mouse cursor color in Emacs window\n\
321 --name NAME title for initial Emacs frame\n\
322 --no-blinking-cursor, -nbc disable blinking cursor\n\
323 --reverse-video, -r, -rv switch foreground and background\n\
324 --title, -T TITLE title for initial Emacs frame\n\
325 --vertical-scroll-bars, -vb enable vertical scroll bars\n\
326 --xrm XRESOURCES set additional X resources\n\
327 --parent-id XID set parent window\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 FORWARD_SIGNAL_TO_MAIN_THREAD
356 /* When compiled with GTK and running under Gnome, or Carbon under Mac
357 OS X, multiple threads may be created. Keep track of our main
358 thread to make sure signals are delivered 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)
427 kill (getpid (), SIGABRT
);
428 /* This shouldn't be executed, but it prevents a warning. */
434 /* Code for dealing with Lisp access to the Unix command line. */
437 init_cmdargs (argc
, argv
, skip_args
)
443 Lisp_Object name
, dir
, tem
;
444 int count
= SPECPDL_INDEX ();
445 Lisp_Object raw_name
;
450 raw_name
= build_string (argv
[0]);
452 /* Add /: to the front of the name
453 if it would otherwise be treated as magic. */
454 tem
= Ffind_file_name_handler (raw_name
, Qt
);
456 raw_name
= concat2 (build_string ("/:"), raw_name
);
458 Vinvocation_name
= Ffile_name_nondirectory (raw_name
);
459 Vinvocation_directory
= Ffile_name_directory (raw_name
);
461 /* If we got no directory in argv[0], search PATH to find where
462 Emacs actually came from. */
463 if (NILP (Vinvocation_directory
))
466 int yes
= openp (Vexec_path
, Vinvocation_name
,
467 Vexec_suffixes
, &found
, make_number (X_OK
));
470 /* Add /: to the front of the name
471 if it would otherwise be treated as magic. */
472 tem
= Ffind_file_name_handler (found
, Qt
);
474 found
= concat2 (build_string ("/:"), found
);
475 Vinvocation_directory
= Ffile_name_directory (found
);
479 if (!NILP (Vinvocation_directory
)
480 && NILP (Ffile_name_absolute_p (Vinvocation_directory
)))
481 /* Emacs was started with relative path, like ./emacs.
483 Vinvocation_directory
= Fexpand_file_name (Vinvocation_directory
, Qnil
);
485 Vinstallation_directory
= Qnil
;
487 if (!NILP (Vinvocation_directory
))
489 dir
= Vinvocation_directory
;
490 name
= Fexpand_file_name (Vinvocation_name
, dir
);
493 Lisp_Object tem
, lib_src_exists
;
494 Lisp_Object etc_exists
, info_exists
;
496 /* See if dir contains subdirs for use by Emacs.
497 Check for the ones that would exist in a build directory,
498 not including lisp and info. */
499 tem
= Fexpand_file_name (build_string ("lib-src"), dir
);
500 lib_src_exists
= Ffile_exists_p (tem
);
503 /* MSDOS installations frequently remove lib-src, but we still
504 must set installation-directory, or else info won't find
505 its files (it uses the value of installation-directory). */
506 tem
= Fexpand_file_name (build_string ("info"), dir
);
507 info_exists
= Ffile_exists_p (tem
);
512 if (!NILP (lib_src_exists
) || !NILP (info_exists
))
514 tem
= Fexpand_file_name (build_string ("etc"), dir
);
515 etc_exists
= Ffile_exists_p (tem
);
516 if (!NILP (etc_exists
))
518 Vinstallation_directory
519 = Ffile_name_as_directory (dir
);
524 /* See if dir's parent contains those subdirs. */
525 tem
= Fexpand_file_name (build_string ("../lib-src"), dir
);
526 lib_src_exists
= Ffile_exists_p (tem
);
530 /* See the MSDOS commentary above. */
531 tem
= Fexpand_file_name (build_string ("../info"), dir
);
532 info_exists
= Ffile_exists_p (tem
);
537 if (!NILP (lib_src_exists
) || !NILP (info_exists
))
539 tem
= Fexpand_file_name (build_string ("../etc"), dir
);
540 etc_exists
= Ffile_exists_p (tem
);
541 if (!NILP (etc_exists
))
543 tem
= Fexpand_file_name (build_string (".."), dir
);
544 Vinstallation_directory
545 = Ffile_name_as_directory (tem
);
550 /* If the Emacs executable is actually a link,
551 next try the dir that the link points into. */
552 tem
= Ffile_symlink_p (name
);
555 name
= Fexpand_file_name (tem
, dir
);
556 dir
= Ffile_name_directory (name
);
563 Vcommand_line_args
= Qnil
;
565 for (i
= argc
- 1; i
>= 0; i
--)
567 if (i
== 0 || i
> skip_args
)
568 /* For the moment, we keep arguments as is in unibyte strings.
569 They are decoded in the function command-line after we know
570 locale-coding-system. */
572 = Fcons (make_unibyte_string (argv
[i
], strlen (argv
[i
])),
576 unbind_to (count
, Qnil
);
579 DEFUN ("invocation-name", Finvocation_name
, Sinvocation_name
, 0, 0, 0,
580 doc
: /* Return the program name that was used to run Emacs.
581 Any directory names are omitted. */)
584 return Fcopy_sequence (Vinvocation_name
);
587 DEFUN ("invocation-directory", Finvocation_directory
, Sinvocation_directory
,
589 doc
: /* Return the directory name in which the Emacs executable was located. */)
592 return Fcopy_sequence (Vinvocation_directory
);
597 #ifdef LINK_CRTL_SHARE
598 #ifdef SHARABLE_LIB_BUG
599 extern noshare
char **environ
;
600 #endif /* SHARABLE_LIB_BUG */
601 #endif /* LINK_CRTL_SHARE */
605 /* A valid but unlikely value for the TZ environment value.
606 It is OK (though a bit slower) if the user actually chooses this value. */
607 static char dump_tz
[] = "UtC0";
610 #ifndef ORDINARY_LINK
611 /* We don't include crtbegin.o and crtend.o in the link,
612 so these functions and variables might be missed.
613 Provide dummy definitions to avoid error.
614 (We don't have any real constructors or destructors.) */
616 #ifndef GCC_CTORS_IN_LIBC
617 void __do_global_ctors ()
619 void __do_global_ctors_aux ()
621 void __do_global_dtors ()
623 /* GNU/Linux has a bug in its library; avoid an error. */
625 char * __CTOR_LIST__
[2] = { (char *) (-1), 0 };
627 char * __DTOR_LIST__
[2] = { (char *) (-1), 0 };
628 #endif /* GCC_CTORS_IN_LIBC */
631 #endif /* __GNUC__ */
632 #endif /* ORDINARY_LINK */
634 /* Test whether the next argument in ARGV matches SSTR or a prefix of
635 LSTR (at least MINLEN characters). If so, then if VALPTR is non-null
636 (the argument is supposed to have a value) store in *VALPTR either
637 the next argument or the portion of this one after the equal sign.
638 ARGV is read starting at position *SKIPPTR; this index is advanced
639 by the number of arguments used.
641 Too bad we can't just use getopt for all of this, but we don't have
642 enough information to do it right. */
645 argmatch (argv
, argc
, sstr
, lstr
, minlen
, valptr
, skipptr
)
658 /* Don't access argv[argc]; give up in advance. */
659 if (argc
<= *skipptr
+ 1)
662 arg
= argv
[*skipptr
+1];
665 if (strcmp (arg
, sstr
) == 0)
669 *valptr
= argv
[*skipptr
+2];
676 arglen
= (valptr
!= NULL
&& (p
= index (arg
, '=')) != NULL
677 ? p
- arg
: strlen (arg
));
678 if (lstr
== 0 || arglen
< minlen
|| strncmp (arg
, lstr
, arglen
) != 0)
680 else if (valptr
== NULL
)
691 else if (argv
[*skipptr
+2] != NULL
)
693 *valptr
= argv
[*skipptr
+2];
703 #ifdef DOUG_LEA_MALLOC
705 /* malloc can be invoked even before main (e.g. by the dynamic
706 linker), so the dumped malloc state must be restored as early as
707 possible using this special hook. */
710 malloc_initialize_hook ()
713 extern char **environ
;
718 if (!malloc_using_checking
)
719 /* Work around a bug in glibc's malloc. MALLOC_CHECK_ must be
720 ignored if the heap to be restored was constructed without
721 malloc checking. Can't use unsetenv, since that calls malloc. */
725 for (p
= environ
; p
&& *p
; p
++)
726 if (strncmp (*p
, "MALLOC_CHECK_=", 14) == 0)
735 malloc_set_state (malloc_state_ptr
);
736 #ifndef XMALLOC_OVERRUN_CHECK
737 free (malloc_state_ptr
);
742 if (my_heap_start
== 0)
743 my_heap_start
= sbrk (0);
744 malloc_using_checking
= getenv ("MALLOC_CHECK_") != NULL
;
748 void (*__malloc_initialize_hook
) () = malloc_initialize_hook
;
750 #endif /* DOUG_LEA_MALLOC */
753 #define REPORT_EMACS_BUG_ADDRESS "bug-gnu-emacs@gnu.org"
754 #define REPORT_EMACS_BUG_PRETEST_ADDRESS "emacs-pretest-bug@gnu.org"
756 /* This function is used to determine an address to which bug report should
760 bug_reporting_address ()
766 temp
= Fsymbol_value (intern ("emacs-version"));
768 /* When `emacs-version' is invalid, use normal address. */
770 return REPORT_EMACS_BUG_ADDRESS
;
772 string
= SDATA (temp
);
774 /* Count dots in `emacs-version'. */
782 /* When `emacs-version' has at least three dots, it is development or
783 pretest version of Emacs. */
784 return count
>= 3 ? REPORT_EMACS_BUG_PRETEST_ADDRESS
: REPORT_EMACS_BUG_ADDRESS
;
804 char stack_bottom_variable
;
805 int do_initial_setlocale
;
810 #ifdef HAVE_SETRLIMIT
817 extern Lisp_Object
*stack_base
;
823 extern char my_endbss
[];
824 extern char *my_endbss_static
;
826 if (my_heap_start
== 0)
827 my_heap_start
= sbrk (0);
829 heap_bss_diff
= (char *)my_heap_start
- max (my_endbss
, my_endbss_static
);
832 #ifdef LINUX_SBRK_BUG
836 #ifdef RUN_TIME_REMAP
838 run_time_remap (argv
[0]);
843 unexec_init_emacs_zone ();
846 sort_args (argc
, argv
);
848 while (argv
[argc
]) argc
++;
850 if (argmatch (argv
, argc
, "-version", "--version", 3, NULL
, &skip_args
)
851 /* We don't know the version number unless this is a dumped Emacs.
852 So ignore --version otherwise. */
855 Lisp_Object tem
, tem2
;
856 tem
= Fsymbol_value (intern ("emacs-version"));
857 tem2
= Fsymbol_value (intern ("emacs-copyright"));
860 fprintf (stderr
, "Invalid value of `emacs-version'\n");
865 fprintf (stderr
, "Invalid value of `emacs-copyright'\n");
870 printf ("GNU Emacs %s\n", SDATA (tem
));
871 printf ("%s\n", SDATA(tem2
));
872 printf ("GNU Emacs comes with ABSOLUTELY NO WARRANTY.\n");
873 printf ("You may redistribute copies of Emacs\n");
874 printf ("under the terms of the GNU General Public License.\n");
875 printf ("For more information about these matters, ");
876 printf ("see the file named COPYING.\n");
881 #ifdef HAVE_PERSONALITY_LINUX32
882 /* See if there is a gap between the end of BSS and the heap.
883 In that case, set personality and exec ourself again. */
885 && (strcmp (argv
[argc
-1], "dump") == 0
886 || strcmp (argv
[argc
-1], "bootstrap") == 0)
887 && heap_bss_diff
> MAX_HEAP_BSS_DIFF
)
889 if (! getenv ("EMACS_HEAP_EXEC"))
891 /* Set this so we only do this once. */
892 putenv("EMACS_HEAP_EXEC=true");
894 /* A flag to turn off address randomization which is introduced
895 in linux kernel shipped with fedora core 4 */
896 #define ADD_NO_RANDOMIZE 0x0040000
897 personality (PER_LINUX32
| ADD_NO_RANDOMIZE
);
898 #undef ADD_NO_RANDOMIZE
900 execvp (argv
[0], argv
);
902 /* If the exec fails, try to dump anyway. */
906 #endif /* HAVE_PERSONALITY_LINUX32 */
909 /* Map in shared memory, if we are using that. */
911 if (argmatch (argv
, argc
, "-nl", "--no-shared-memory", 6, NULL
, &skip_args
))
914 /* The shared memory was just restored, which clobbered this. */
920 /* The shared memory was just restored, which clobbered this. */
926 /* Skip process serial number passed in the form -psn_x_y as
927 command-line argument. The WindowServer adds this option when
928 Emacs is invoked from the Finder or by the `open' command. In
929 these cases, the working directory becomes `/', so we change it
930 to the user's home directory. */
931 if (argc
> skip_args
+ 1 && strncmp (argv
[skip_args
+1], "-psn_", 5) == 0)
933 chdir (getenv ("HOME"));
939 /* If -map specified, map the data file in. */
942 if (argmatch (argv
, argc
, "-map", "--map-data", 3, &file
, &skip_args
))
946 #ifdef LINK_CRTL_SHARE
947 #ifdef SHARABLE_LIB_BUG
948 /* Bletcherous shared libraries! */
950 stdin
= fdopen (0, "r");
952 stdout
= fdopen (1, "w");
954 stderr
= fdopen (2, "w");
957 #endif /* SHARABLE_LIB_BUG */
958 #endif /* LINK_CRTL_SHARE */
961 #if defined (HAVE_SETRLIMIT) && defined (RLIMIT_STACK)
962 /* Extend the stack space available.
963 Don't do that if dumping, since some systems (e.g. DJGPP)
964 might define a smaller stack limit at that time. */
967 && (!noninteractive
|| initialized
)
969 && !getrlimit (RLIMIT_STACK
, &rlim
))
972 extern size_t re_max_failures
;
973 /* Approximate the amount regex.c needs per unit of re_max_failures. */
974 int ratio
= 20 * sizeof (char *);
975 /* Then add 33% to cover the size of the smaller stacks that regex.c
976 successively allocates and discards, on its way to the maximum. */
978 /* Add in some extra to cover
979 what we're likely to use for other reasons. */
980 newlim
= re_max_failures
* ratio
+ 200000;
982 /* NetBSD (at least NetBSD 1.2G and former) has a bug in its
983 stack allocation routine for new process that the allocation
984 fails if stack limit is not on page boundary. So, round up the
985 new limit to page boundary. */
986 newlim
= (newlim
+ getpagesize () - 1) / getpagesize () * getpagesize();
988 if (newlim
> rlim
.rlim_max
)
990 newlim
= rlim
.rlim_max
;
991 /* Don't let regex.c overflow the stack we have. */
992 re_max_failures
= (newlim
- 200000) / ratio
;
994 if (rlim
.rlim_cur
< newlim
)
995 rlim
.rlim_cur
= newlim
;
997 setrlimit (RLIMIT_STACK
, &rlim
);
999 #endif /* HAVE_SETRLIMIT and RLIMIT_STACK */
1001 /* Record (approximately) where the stack begins. */
1002 stack_bottom
= &stack_bottom_variable
;
1004 #ifdef USG_SHARED_LIBRARIES
1006 brk ((void *)bss_end
);
1011 #ifndef SYSTEM_MALLOC
1012 /* Arrange to get warning messages as memory fills up. */
1013 memory_warnings (0, malloc_warning
);
1015 /* Call malloc at least once, to run the initial __malloc_hook.
1016 Also call realloc and free for consistency. */
1017 free (realloc (malloc (4), 4));
1020 /* Arrange to disable interrupt input inside malloc etc. */
1021 uninterrupt_malloc ();
1022 # endif /* not SYNC_INPUT */
1023 #endif /* not SYSTEM_MALLOC */
1025 #ifdef FORWARD_SIGNAL_TO_MAIN_THREAD
1026 main_thread
= pthread_self ();
1027 #endif /* FORWARD_SIGNAL_TO_MAIN_THREAD */
1029 #if defined (MSDOS) || defined (WINDOWSNT)
1030 /* We do all file input/output as binary files. When we need to translate
1031 newlines, we do that manually. */
1033 #endif /* MSDOS || WINDOWSNT */
1037 if (!isatty (fileno (stdin
)))
1038 setmode (fileno (stdin
), O_BINARY
);
1039 if (!isatty (fileno (stdout
)))
1042 setmode (fileno (stdout
), O_BINARY
);
1044 #else /* not __DJGPP__ >= 2 */
1045 (stdin
)->_flag
&= ~_IOTEXT
;
1046 (stdout
)->_flag
&= ~_IOTEXT
;
1047 (stderr
)->_flag
&= ~_IOTEXT
;
1048 #endif /* not __DJGPP__ >= 2 */
1051 #ifdef SET_EMACS_PRIORITY
1053 nice (emacs_priority
);
1055 #endif /* SET_EMACS_PRIORITY */
1057 /* Skip initial setlocale if LC_ALL is "C", as it's not needed in that case.
1058 The build procedure uses this while dumping, to ensure that the
1059 dumped Emacs does not have its system locale tables initialized,
1060 as that might cause screwups when the dumped Emacs starts up. */
1062 char *lc_all
= getenv ("LC_ALL");
1063 do_initial_setlocale
= ! lc_all
|| strcmp (lc_all
, "C");
1066 /* Set locale now, so that initial error messages are localized properly.
1067 fixup_locale must wait until later, since it builds strings. */
1068 if (do_initial_setlocale
)
1069 setlocale (LC_ALL
, "");
1071 inhibit_window_system
= 0;
1073 /* Handle the -t switch, which specifies filename to use as terminal. */
1077 if (argmatch (argv
, argc
, "-t", "--terminal", 4, &term
, &skip_args
))
1082 result
= emacs_open (term
, O_RDWR
, 0);
1085 char *errstring
= strerror (errno
);
1086 fprintf (stderr
, "%s: %s: %s\n", argv
[0], term
, errstring
);
1092 fprintf (stderr
, "%s: %s: not a tty\n", argv
[0], term
);
1095 fprintf (stderr
, "Using %s\n", term
);
1096 #ifdef HAVE_WINDOW_SYSTEM
1097 inhibit_window_system
= 1; /* -t => -nw */
1104 /* Command line option --no-windows is deprecated and thus not mentioned
1105 in the manual and usage informations. */
1106 if (argmatch (argv
, argc
, "-nw", "--no-window-system", 6, NULL
, &skip_args
)
1107 || argmatch (argv
, argc
, "-nw", "--no-windows", 6, NULL
, &skip_args
))
1108 inhibit_window_system
= 1;
1110 /* Handle the -batch switch, which means don't do interactive display. */
1112 if (argmatch (argv
, argc
, "-batch", "--batch", 5, NULL
, &skip_args
))
1115 Vundo_outer_limit
= Qnil
;
1117 if (argmatch (argv
, argc
, "-script", "--script", 3, &junk
, &skip_args
))
1119 noninteractive
= 1; /* Set batch mode. */
1120 /* Convert --script to -scriptload, un-skip it, and sort again
1121 so that it will be handled in proper sequence. */
1122 /* FIXME broken for --script=FILE - is that supposed to work? */
1123 argv
[skip_args
- 1] = "-scriptload";
1125 sort_args (argc
, argv
);
1128 /* Handle the --help option, which gives a usage message. */
1129 if (argmatch (argv
, argc
, "-help", "--help", 3, NULL
, &skip_args
))
1131 printf (USAGE1
, argv
[0], USAGE2
);
1133 printf (USAGE4
, bug_reporting_address ());
1137 if (! noninteractive
)
1142 inherited_pgroup
= EMACS_GETPGRP (0);
1143 setpgrp (0, getpid ());
1146 #if defined (USG5) && defined (INTERRUPT_INPUT)
1150 #if defined (HAVE_GTK_AND_PTHREAD) && !defined (SYSTEM_MALLOC) && !defined (DOUG_LEA_MALLOC)
1152 extern void malloc_enable_thread
P_ ((void));
1154 malloc_enable_thread ();
1161 /* Don't catch SIGHUP if dumping. */
1168 sigblock (sigmask (SIGHUP
));
1169 /* In --batch mode, don't catch SIGHUP if already ignored.
1170 That makes nohup work. */
1171 if (! noninteractive
1172 || signal (SIGHUP
, SIG_IGN
) != SIG_IGN
)
1173 signal (SIGHUP
, fatal_error_signal
);
1174 sigunblock (sigmask (SIGHUP
));
1179 ! noninteractive
|| initialized
1185 /* Don't catch these signals in batch mode if dumping.
1186 On some machines, this sets static data that would make
1187 signal fail to work right when the dumped Emacs is run. */
1188 signal (SIGQUIT
, fatal_error_signal
);
1189 signal (SIGILL
, fatal_error_signal
);
1190 signal (SIGTRAP
, fatal_error_signal
);
1192 add_user_signal (SIGUSR1
, "sigusr1");
1195 add_user_signal (SIGUSR2
, "sigusr2");
1198 signal (SIGABRT
, fatal_error_signal
);
1201 signal (SIGHWE
, fatal_error_signal
);
1204 signal (SIGPRE
, fatal_error_signal
);
1207 signal (SIGORE
, fatal_error_signal
);
1210 signal (SIGUME
, fatal_error_signal
);
1213 signal (SIGDLK
, fatal_error_signal
);
1216 signal (SIGCPULIM
, fatal_error_signal
);
1219 /* This is missing on some systems - OS/2, for example. */
1220 signal (SIGIOT
, fatal_error_signal
);
1223 signal (SIGEMT
, fatal_error_signal
);
1225 signal (SIGFPE
, fatal_error_signal
);
1227 signal (SIGBUS
, fatal_error_signal
);
1229 signal (SIGSEGV
, fatal_error_signal
);
1231 signal (SIGSYS
, fatal_error_signal
);
1233 signal (SIGTERM
, fatal_error_signal
);
1235 signal (SIGXCPU
, fatal_error_signal
);
1238 signal (SIGXFSZ
, fatal_error_signal
);
1239 #endif /* SIGXFSZ */
1242 /* This just means available memory is getting low. */
1243 signal (SIGDANGER
, memory_warning_signal
);
1247 /* 20 is SIGCHLD, 21 is SIGTTIN, 22 is SIGTTOU. */
1248 signal (SIGXCPU
, fatal_error_signal
);
1250 signal (SIGIOINT
, fatal_error_signal
);
1252 signal (SIGGRANT
, fatal_error_signal
);
1253 signal (SIGRETRACT
, fatal_error_signal
);
1254 signal (SIGSOUND
, fatal_error_signal
);
1255 signal (SIGMSG
, fatal_error_signal
);
1259 noninteractive1
= noninteractive
;
1261 /* Perform basic initializations (not merely interning symbols). */
1268 init_character_once ();
1269 init_charset_once ();
1270 init_coding_once ();
1271 init_syntax_once (); /* Create standard syntax table. */
1272 init_category_once (); /* Create standard category table. */
1273 /* Must be done before init_buffer. */
1274 init_casetab_once ();
1275 init_buffer_once (); /* Create buffer table and some buffers. */
1276 init_minibuf_once (); /* Create list of minibuffers. */
1277 /* Must precede init_window_once. */
1279 /* Call syms_of_xfaces before init_window_once because that
1280 function creates Vterminal_frame. Termcap frames now use
1281 faces, and the face implementation uses some symbols as
1284 /* XXX syms_of_keyboard uses some symbols in keymap.c. It would
1285 be better to arrange things not to have this dependency. */
1287 /* Call syms_of_keyboard before init_window_once because
1288 keyboard sets up symbols that include some face names that
1289 the X support will want to use. This can happen when
1290 CANNOT_DUMP is defined. */
1291 syms_of_keyboard ();
1294 /* init_window_once calls make_terminal_frame which on Mac OS
1295 creates a full-fledge output_mac type frame. This does not
1296 work correctly before syms_of_textprop, syms_of_macfns,
1297 syms_of_ccl, syms_of_fontset, syms_of_xterm, syms_of_search,
1298 syms_of_frame, mac_term_init, and init_keyboard have already
1300 syms_of_textprop ();
1306 syms_of_macselect ();
1311 mac_term_init (build_string ("Mac"), NULL
, NULL
);
1314 /* Called before syms_of_fileio, because it sets up Qerror_condition. */
1317 /* Before syms_of_coding to initialize Vgc_cons_threshold. */
1319 /* Before syms_of_coding because it initializes Qcharsetp. */
1321 /* Before init_window_once, because it sets up the
1322 Vcoding_system_hash_table. */
1323 syms_of_coding (); /* This should be after syms_of_fileio. */
1325 init_window_once (); /* Init the window system. */
1326 init_fileio_once (); /* Must precede any path manipulation. */
1327 #ifdef HAVE_WINDOW_SYSTEM
1328 init_fringe_once (); /* Swap bitmaps if necessary. */
1329 #endif /* HAVE_WINDOW_SYSTEM */
1334 if (do_initial_setlocale
)
1337 Vsystem_messages_locale
= Vprevious_system_messages_locale
;
1338 Vsystem_time_locale
= Vprevious_system_time_locale
;
1343 #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 /* Make a multibyte buffer unibyte. */
1398 if (BUF_Z_BYTE (XBUFFER (buffer
)) > BUF_Z (XBUFFER (buffer
)))
1400 struct buffer
*current
= current_buffer
;
1402 set_buffer_temp (XBUFFER (buffer
));
1403 Fset_buffer_multibyte (Qnil
);
1404 set_buffer_temp (current
);
1411 = argmatch (argv
, argc
, "-nl", "--no-loadup", 6, NULL
, &skip_args
);
1413 #ifdef HAVE_X_WINDOWS
1414 /* Stupid kludge to catch command-line display spec. We can't
1415 handle this argument entirely in window system dependent code
1416 because we don't even know which window system dependent code
1417 to run until we've recognized this argument. */
1419 char *displayname
= 0;
1420 int count_before
= skip_args
;
1422 /* Skip any number of -d options, but only use the last one. */
1425 int count_before_this
= skip_args
;
1427 if (argmatch (argv
, argc
, "-d", "--display", 3, &displayname
, &skip_args
))
1429 else if (argmatch (argv
, argc
, "-display", 0, 3, &displayname
, &skip_args
))
1434 count_before
= count_before_this
;
1437 /* If we have the form --display=NAME,
1438 convert it into -d name.
1439 This requires inserting a new element into argv. */
1440 if (displayname
!= 0 && skip_args
- count_before
== 1)
1442 char **new = (char **) xmalloc (sizeof (char *) * (argc
+ 2));
1445 for (j
= 0; j
< count_before
+ 1; j
++)
1447 new[count_before
+ 1] = "-d";
1448 new[count_before
+ 2] = displayname
;
1449 for (j
= count_before
+ 2; j
<argc
; j
++)
1450 new[j
+ 1] = argv
[j
];
1454 /* Change --display to -d, when its arg is separate. */
1455 else if (displayname
!= 0 && skip_args
> count_before
1456 && argv
[count_before
+ 1][1] == '-')
1457 argv
[count_before
+ 1] = "-d";
1459 /* Don't actually discard this arg. */
1460 skip_args
= count_before
;
1464 /* argmatch must not be used after here,
1465 except when bulding temacs
1466 because the -d argument has not been skipped in skip_args. */
1469 /* Call early 'cause init_environment needs it. */
1471 /* Set defaults for several environment variables. */
1473 init_environment (argc
, argv
, skip_args
);
1480 /* Initialize environment from registry settings. */
1481 init_environment (argv
);
1482 init_ntproc (); /* must precede init_editfns. */
1485 #if defined (MAC_OSX) && defined (HAVE_CARBON)
1487 init_mac_osx_environment ();
1490 /* egetenv is a pretty low-level facility, which may get called in
1491 many circumstances; it seems flimsy to put off initializing it
1492 until calling init_callproc. */
1493 set_initial_environment ();
1494 /* AIX crashes are reported in system versions 3.2.3 and 3.2.4
1495 if this is not done. Do it after set_global_environment so that we
1496 don't pollute Vglobal_environment. */
1497 /* Setting LANG here will defeat the startup locale processing... */
1502 init_buffer (); /* Init default directory of main buffer. */
1504 init_callproc_1 (); /* Must precede init_cmdargs and init_sys_modes. */
1505 init_cmdargs (argc
, argv
, skip_args
); /* Must precede init_lread. */
1509 /* Erase any pre-dump messages in the message log, to avoid confusion. */
1510 Lisp_Object old_log_max
;
1511 old_log_max
= Vmessage_log_max
;
1512 XSETFASTINT (Vmessage_log_max
, 0);
1513 message_dolog ("", 0, 1, 0);
1514 Vmessage_log_max
= old_log_max
;
1517 init_callproc (); /* Must follow init_cmdargs but not init_sys_modes. */
1520 /* Intern the names of all standard functions and variables;
1521 define standard keys. */
1525 /* The basic levels of Lisp must come first. */
1526 /* And data must come first of all
1527 for the sake of symbols like error-message. */
1528 /* Called before init_window_once for Mac OS Classic. */
1535 syms_of_floatfns ();
1538 syms_of_bytecode ();
1540 syms_of_casefiddle ();
1542 syms_of_callproc ();
1543 syms_of_category ();
1545 syms_of_character ();
1547 #ifndef NO_DIR_LIBRARY
1549 #endif /* not NO_DIR_LIBRARY */
1554 #ifdef CLASH_DETECTION
1555 syms_of_filelock ();
1556 #endif /* CLASH_DETECTION */
1559 /* syms_of_keymap (); */
1567 syms_of_terminal ();
1573 syms_of_textprop ();
1574 syms_of_composite ();
1580 #endif /* WINDOWSNT */
1584 #ifdef HAVE_WINDOW_SYSTEM
1587 #endif /* HAVE_WINDOW_SYSTEM */
1588 #ifdef HAVE_X_WINDOWS
1598 #endif /* HAVE_X_WINDOWS */
1604 /* Called before init_window_once for Mac OS Classic. */
1612 syms_of_w32select ();
1615 #endif /* HAVE_NTGUI */
1617 #if defined (MAC_OSX) && defined (HAVE_CARBON)
1621 syms_of_macselect ();
1623 #endif /* MAC_OSX && HAVE_CARBON */
1626 syms_of_dbusbind ();
1627 #endif /* HAVE_DBUS */
1637 keys_of_casefiddle ();
1640 keys_of_keyboard ();
1646 /* Initialization that must be done even if the global variable
1647 initialized is non zero. */
1649 globals_of_w32fns ();
1650 globals_of_w32menu ();
1651 globals_of_w32select ();
1652 #endif /* HAVE_NTGUI */
1657 init_editfns (); /* init_process uses Voperating_system_release. */
1658 init_process (); /* init_display uses add_keyboard_wait_descriptor. */
1659 init_keyboard (); /* This too must precede init_sys_modes. */
1661 init_vmsproc (); /* And this too. */
1663 if (!noninteractive
)
1666 init_vms_input ();/* init_display calls get_tty_size, that needs this. */
1668 init_display (); /* Determine terminal type. Calls init_sys_modes. */
1672 #ifdef HAVE_WINDOW_SYSTEM
1675 #endif /* HAVE_WINDOW_SYSTEM */
1689 /* Handle -l loadup, args passed by Makefile. */
1690 if (argmatch (argv
, argc
, "-l", "--load", 3, &file
, &skip_args
))
1691 Vtop_level
= Fcons (intern ("load"),
1692 Fcons (build_string (file
), Qnil
));
1693 /* Unless next switch is -nl, load "loadup.el" first thing. */
1695 Vtop_level
= Fcons (intern ("load"),
1696 Fcons (build_string ("loadup.el"), Qnil
));
1703 /* If the execution TZ happens to be the same as the dump TZ,
1704 change it to some other value and then change it back,
1705 to force the underlying implementation to reload the TZ info.
1706 This is needed on implementations that load TZ info from files,
1707 since the TZ file contents may differ between dump and execution. */
1708 char *tz
= getenv ("TZ");
1709 if (tz
&& !strcmp (tz
, dump_tz
))
1719 /* Set up for profiling. This is known to work on FreeBSD,
1720 GNU/Linux and MinGW. It might work on some other systems too.
1721 Give it a try and tell us if it works on your system. To compile
1722 for profiling, add -pg to the switches your platform uses in
1723 CFLAGS and LDFLAGS. For example:
1724 `make CFLAGS="-pg -g -O -DPROFILING=1" LDFLAGS="-pg -g"'. */
1725 #if defined (__FreeBSD__) || defined (GNU_LINUX) || defined(__MINGW32__)
1729 extern void _mcleanup ();
1731 extern unsigned char etext
asm ("etext");
1735 extern void safe_bcopy ();
1736 extern void dump_opcode_frequencies ();
1739 /* This uses safe_bcopy because that function comes first in the
1740 Emacs executable. It might be better to use something that
1741 gives the start of the text segment, but start_of_text is not
1742 defined on all systems now. */
1743 monstartup (safe_bcopy
, &etext
);
1752 #ifdef LOCALTIME_CACHE
1753 /* Some versions of localtime have a bug. They cache the value of the time
1754 zone rather than looking it up every time. Since localtime() is
1755 called to bolt the undumping time into the undumped emacs, this
1756 results in localtime ignoring the TZ environment variable.
1757 This flushes the new TZ value into localtime. */
1759 #endif /* defined (LOCALTIME_CACHE) */
1761 /* Enter editor command loop. This never returns. */
1767 /* Sort the args so we can find the most important ones
1768 at the beginning of argv. */
1770 /* First, here's a table of all the standard options. */
1772 struct standard_args
1780 struct standard_args standard_args
[] =
1782 { "-version", "--version", 150, 0 },
1784 { "-nl", "--no-shared-memory", 140, 0 },
1787 { "-map", "--map-data", 130, 0 },
1789 { "-t", "--terminal", 120, 1 },
1790 { "-nw", "--no-window-system", 110, 0 },
1791 { "-nw", "--no-windows", 110, 0 },
1792 { "-batch", "--batch", 100, 0 },
1793 { "-script", "--script", 100, 1 },
1794 { "-help", "--help", 90, 0 },
1795 { "-no-unibyte", "--no-unibyte", 83, 0 },
1796 { "-multibyte", "--multibyte", 82, 0 },
1797 { "-unibyte", "--unibyte", 81, 0 },
1798 { "-no-multibyte", "--no-multibyte", 80, 0 },
1799 { "-nl", "--no-loadup", 70, 0 },
1800 /* -d must come last before the options handled in startup.el. */
1801 { "-d", "--display", 60, 1 },
1802 { "-display", 0, 60, 1 },
1803 /* Now for the options handled in startup.el. */
1804 { "-Q", "--quick", 55, 0 },
1805 { "-quick", 0, 55, 0 },
1806 { "-q", "--no-init-file", 50, 0 },
1807 { "-no-init-file", 0, 50, 0 },
1808 { "-no-site-file", "--no-site-file", 40, 0 },
1809 { "-u", "--user", 30, 1 },
1810 { "-user", 0, 30, 1 },
1811 { "-debug-init", "--debug-init", 20, 0 },
1812 { "-nbi", "--no-bitmap-icon", 15, 0 },
1813 { "-iconic", "--iconic", 15, 0 },
1814 { "-D", "--basic-display", 12, 0},
1815 { "-basic-display", 0, 12, 0},
1816 { "-bg", "--background-color", 10, 1 },
1817 { "-background", 0, 10, 1 },
1818 { "-fg", "--foreground-color", 10, 1 },
1819 { "-foreground", 0, 10, 1 },
1820 { "-bd", "--border-color", 10, 1 },
1821 { "-bw", "--border-width", 10, 1 },
1822 { "-ib", "--internal-border", 10, 1 },
1823 { "-ms", "--mouse-color", 10, 1 },
1824 { "-cr", "--cursor-color", 10, 1 },
1825 { "-nbc", "--no-blinking-cursor", 10, 0 },
1826 { "-fn", "--font", 10, 1 },
1827 { "-font", 0, 10, 1 },
1828 { "-fs", "--fullscreen", 10, 0 },
1829 { "-fw", "--fullwidth", 10, 0 },
1830 { "-fh", "--fullheight", 10, 0 },
1831 { "-g", "--geometry", 10, 1 },
1832 { "-geometry", 0, 10, 1 },
1833 { "-T", "--title", 10, 1 },
1834 { "-title", 0, 10, 1 },
1835 { "-name", "--name", 10, 1 },
1836 { "-xrm", "--xrm", 10, 1 },
1837 { "-parent-id", "--parent-id", 10, 1 },
1838 { "-r", "--reverse-video", 5, 0 },
1840 { "-reverse", 0, 5, 0 },
1841 { "-hb", "--horizontal-scroll-bars", 5, 0 },
1842 { "-vb", "--vertical-scroll-bars", 5, 0 },
1843 { "-color", "--color", 5, 0},
1844 { "-no-splash", "--no-splash", 3, 0 },
1845 { "-no-desktop", "--no-desktop", 3, 0 },
1846 /* These have the same priority as ordinary file name args,
1847 so they are not reordered with respect to those. */
1848 { "-L", "--directory", 0, 1 },
1849 { "-directory", 0, 0, 1 },
1850 { "-l", "--load", 0, 1 },
1851 { "-load", 0, 0, 1 },
1852 /* This has no longname, because using --scriptload confuses sort_args,
1853 because then the --script long option seems to match twice; ie
1854 you can't have a long option which is a prefix of another long
1855 option. In any case, this is entirely an internal option. */
1856 { "-scriptload", NULL
, 0, 1 },
1857 { "-f", "--funcall", 0, 1 },
1858 { "-funcall", 0, 0, 1 },
1859 { "-eval", "--eval", 0, 1 },
1860 { "-execute", "--execute", 0, 1 },
1861 { "-find-file", "--find-file", 0, 1 },
1862 { "-visit", "--visit", 0, 1 },
1863 { "-file", "--file", 0, 1 },
1864 { "-insert", "--insert", 0, 1 },
1865 /* This should be processed after ordinary file name args and the like. */
1866 { "-kill", "--kill", -10, 0 },
1869 /* Reorder the elements of ARGV (assumed to have ARGC elements)
1870 so that the highest priority ones come first.
1871 Do not change the order of elements of equal priority.
1872 If an option takes an argument, keep it and its argument together.
1874 If an option that takes no argument appears more
1875 than once, eliminate all but one copy of it. */
1878 sort_args (argc
, argv
)
1882 char **new = (char **) xmalloc (sizeof (char *) * argc
);
1883 /* For each element of argv,
1884 the corresponding element of options is:
1885 0 for an option that takes no arguments,
1886 1 for an option that takes one argument, etc.
1887 -1 for an ordinary non-option argument. */
1888 int *options
= (int *) xmalloc (sizeof (int) * argc
);
1889 int *priority
= (int *) xmalloc (sizeof (int) * argc
);
1891 int incoming_used
= 1;
1895 /* Categorize all the options,
1896 and figure out which argv elts are option arguments. */
1897 for (from
= 1; from
< argc
; from
++)
1901 if (argv
[from
][0] == '-')
1906 /* If we have found "--", don't consider
1907 any more arguments as options. */
1908 if (argv
[from
][1] == '-' && argv
[from
][2] == 0)
1910 /* Leave the "--", and everything following it, at the end. */
1911 for (; from
< argc
; from
++)
1913 priority
[from
] = -100;
1919 /* Look for a match with a known old-fashioned option. */
1920 for (i
= 0; i
< sizeof (standard_args
) / sizeof (standard_args
[0]); i
++)
1921 if (!strcmp (argv
[from
], standard_args
[i
].name
))
1923 options
[from
] = standard_args
[i
].nargs
;
1924 priority
[from
] = standard_args
[i
].priority
;
1925 if (from
+ standard_args
[i
].nargs
>= argc
)
1926 fatal ("Option `%s' requires an argument\n", argv
[from
]);
1927 from
+= standard_args
[i
].nargs
;
1931 /* Look for a match with a known long option.
1932 MATCH is -1 if no match so far, -2 if two or more matches so far,
1933 >= 0 (the table index of the match) if just one match so far. */
1934 if (argv
[from
][1] == '-')
1937 thislen
= strlen (argv
[from
]);
1938 equals
= index (argv
[from
], '=');
1940 thislen
= equals
- argv
[from
];
1943 i
< sizeof (standard_args
) / sizeof (standard_args
[0]); i
++)
1944 if (standard_args
[i
].longname
1945 && !strncmp (argv
[from
], standard_args
[i
].longname
,
1954 /* If we found exactly one match, use that. */
1957 options
[from
] = standard_args
[match
].nargs
;
1958 priority
[from
] = standard_args
[match
].priority
;
1959 /* If --OPTION=VALUE syntax is used,
1960 this option uses just one argv element. */
1963 if (from
+ options
[from
] >= argc
)
1964 fatal ("Option `%s' requires an argument\n", argv
[from
]);
1965 from
+= options
[from
];
1967 /* FIXME When match < 0, shouldn't there be some error,
1968 or at least indication to the user that there was a
1975 /* Copy the arguments, in order of decreasing priority, to NEW. */
1977 while (incoming_used
< argc
)
1980 int best_priority
= -9999;
1982 /* Find the highest priority remaining option.
1983 If several have equal priority, take the first of them. */
1984 for (from
= 1; from
< argc
; from
++)
1986 if (argv
[from
] != 0 && priority
[from
] > best_priority
)
1988 best_priority
= priority
[from
];
1991 /* Skip option arguments--they are tied to the options. */
1992 if (options
[from
] > 0)
1993 from
+= options
[from
];
1999 /* Copy the highest priority remaining option, with its args, to NEW.
2000 Unless it is a duplicate of the previous one. */
2001 if (! (options
[best
] == 0
2002 && ! strcmp (new[to
- 1], argv
[best
])))
2004 new[to
++] = argv
[best
];
2005 for (i
= 0; i
< options
[best
]; i
++)
2006 new[to
++] = argv
[best
+ i
+ 1];
2009 incoming_used
+= 1 + (options
[best
] > 0 ? options
[best
] : 0);
2011 /* Clear out this option in ARGV. */
2013 for (i
= 0; i
< options
[best
]; i
++)
2014 argv
[best
+ i
+ 1] = 0;
2017 /* If duplicate options were deleted, fill up extra space with null ptrs. */
2021 bcopy (new, argv
, sizeof (char *) * argc
);
2028 DEFUN ("kill-emacs", Fkill_emacs
, Skill_emacs
, 0, 1, "P",
2029 doc
: /* Exit the Emacs job and kill it.
2030 If ARG is an integer, return ARG as the exit program code.
2031 If ARG is a string, stuff it as keyboard input.
2033 The value of `kill-emacs-hook', if not void,
2034 is a list of functions (of no args),
2035 all of which are called before Emacs is actually killed. */)
2039 struct gcpro gcpro1
;
2046 if (!NILP (Vrun_hooks
) && !noninteractive
)
2047 call1 (Vrun_hooks
, intern ("kill-emacs-hook"));
2051 /* Is it really necessary to do this deassign
2052 when we are going to exit anyway? */
2057 shut_down_emacs (0, 0, STRINGP (arg
) ? arg
: Qnil
);
2059 /* If we have an auto-save list file,
2060 kill it because we are exiting Emacs deliberately (not crashing).
2061 Do it after shut_down_emacs, which does an auto-save. */
2062 if (STRINGP (Vauto_save_list_file_name
))
2063 unlink (SDATA (Vauto_save_list_file_name
));
2065 exit (INTEGERP (arg
) ? XINT (arg
) : EXIT_SUCCESS
);
2071 /* Perform an orderly shutdown of Emacs. Autosave any modified
2072 buffers, kill any child processes, clean up the terminal modes (if
2073 we're in the foreground), and other stuff like that. Don't perform
2074 any redisplay; this may be called when Emacs is shutting down in
2075 the background, or after its X connection has died.
2077 If SIG is a signal number, print a message for it.
2079 This is called by fatal signal handlers, X protocol error handlers,
2083 shut_down_emacs (sig
, no_x
, stuff
)
2087 /* Prevent running of hooks from now on. */
2090 /* Don't update display from now on. */
2091 Vinhibit_redisplay
= Qt
;
2093 /* If we are controlling the terminal, reset terminal modes. */
2094 #ifdef EMACS_HAVE_TTY_PGRP
2096 int pgrp
= EMACS_GETPGRP (0);
2099 if (EMACS_GET_TTY_PGRP (0, &tpgrp
) != -1
2102 reset_all_sys_modes ();
2103 if (sig
&& sig
!= SIGTERM
)
2104 fprintf (stderr
, "Fatal error (%d)", sig
);
2109 reset_all_sys_modes ();
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 (Vinitial_window_system
)
2132 && SCHARS (SYMBOL_NAME (Vinitial_window_system
)) == 1
2133 && SREF (SYMBOL_NAME (Vinitial_window_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 bytes). 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 DEFVAR_INT ("emacs-priority", &emacs_priority
,
2480 doc
: /* Priority for Emacs to run at.
2481 This value is effective only if set before Emacs is dumped,
2482 and only if the Emacs executable is installed with setuid to permit
2483 it to change priority. (Emacs sets its uid back to the real uid.)
2484 Currently, you need to define SET_EMACS_PRIORITY in `config.h'
2485 before you compile Emacs, to enable the code for this feature. */);
2488 DEFVAR_LISP ("path-separator", &Vpath_separator
,
2489 doc
: /* String containing the character that separates directories in
2490 search paths, such as PATH and other similar environment variables. */);
2493 Vpath_separator
= make_string (&c
, 1);
2496 DEFVAR_LISP ("invocation-name", &Vinvocation_name
,
2497 doc
: /* The program name that was used to run Emacs.
2498 Any directory names are omitted. */);
2500 DEFVAR_LISP ("invocation-directory", &Vinvocation_directory
,
2501 doc
: /* The directory in which the Emacs executable was found, to run it.
2502 The value is nil if that directory's name is not known. */);
2504 DEFVAR_LISP ("installation-directory", &Vinstallation_directory
,
2505 doc
: /* A directory within which to look for the `lib-src' and `etc' directories.
2506 This is non-nil when we can't find those directories in their standard
2507 installed locations, but we can find them near where the Emacs executable
2509 Vinstallation_directory
= Qnil
;
2511 DEFVAR_LISP ("system-messages-locale", &Vsystem_messages_locale
,
2512 doc
: /* System locale for messages. */);
2513 Vsystem_messages_locale
= Qnil
;
2515 DEFVAR_LISP ("previous-system-messages-locale",
2516 &Vprevious_system_messages_locale
,
2517 doc
: /* Most recently used system locale for messages. */);
2518 Vprevious_system_messages_locale
= Qnil
;
2520 DEFVAR_LISP ("system-time-locale", &Vsystem_time_locale
,
2521 doc
: /* System locale for time. */);
2522 Vsystem_time_locale
= Qnil
;
2524 DEFVAR_LISP ("previous-system-time-locale", &Vprevious_system_time_locale
,
2525 doc
: /* Most recently used system locale for time. */);
2526 Vprevious_system_time_locale
= Qnil
;
2529 /* arch-tag: 7bfd356a-c720-4612-8ab6-aa4222931c2e
2530 (do not change this comment) */