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. */
927 extern int malloc_cookie
;
928 /* This helps out unexnext.c. */
930 if (malloc_jumpstart (malloc_cookie
) != 0)
931 printf ("malloc jumpstart failed!\n");
936 /* Skip process serial number passed in the form -psn_x_y as
937 command-line argument. The WindowServer adds this option when
938 Emacs is invoked from the Finder or by the `open' command. In
939 these cases, the working directory becomes `/', so we change it
940 to the user's home directory. */
941 if (argc
> skip_args
+ 1 && strncmp (argv
[skip_args
+1], "-psn_", 5) == 0)
943 chdir (getenv ("HOME"));
949 /* If -map specified, map the data file in. */
952 if (argmatch (argv
, argc
, "-map", "--map-data", 3, &file
, &skip_args
))
956 #ifdef LINK_CRTL_SHARE
957 #ifdef SHARABLE_LIB_BUG
958 /* Bletcherous shared libraries! */
960 stdin
= fdopen (0, "r");
962 stdout
= fdopen (1, "w");
964 stderr
= fdopen (2, "w");
967 #endif /* SHARABLE_LIB_BUG */
968 #endif /* LINK_CRTL_SHARE */
971 #if defined (HAVE_SETRLIMIT) && defined (RLIMIT_STACK)
972 /* Extend the stack space available.
973 Don't do that if dumping, since some systems (e.g. DJGPP)
974 might define a smaller stack limit at that time. */
977 && (!noninteractive
|| initialized
)
979 && !getrlimit (RLIMIT_STACK
, &rlim
))
982 extern size_t re_max_failures
;
983 /* Approximate the amount regex.c needs per unit of re_max_failures. */
984 int ratio
= 20 * sizeof (char *);
985 /* Then add 33% to cover the size of the smaller stacks that regex.c
986 successively allocates and discards, on its way to the maximum. */
988 /* Add in some extra to cover
989 what we're likely to use for other reasons. */
990 newlim
= re_max_failures
* ratio
+ 200000;
992 /* NetBSD (at least NetBSD 1.2G and former) has a bug in its
993 stack allocation routine for new process that the allocation
994 fails if stack limit is not on page boundary. So, round up the
995 new limit to page boundary. */
996 newlim
= (newlim
+ getpagesize () - 1) / getpagesize () * getpagesize();
998 if (newlim
> rlim
.rlim_max
)
1000 newlim
= rlim
.rlim_max
;
1001 /* Don't let regex.c overflow the stack we have. */
1002 re_max_failures
= (newlim
- 200000) / ratio
;
1004 if (rlim
.rlim_cur
< newlim
)
1005 rlim
.rlim_cur
= newlim
;
1007 setrlimit (RLIMIT_STACK
, &rlim
);
1009 #endif /* HAVE_SETRLIMIT and RLIMIT_STACK */
1011 /* Record (approximately) where the stack begins. */
1012 stack_bottom
= &stack_bottom_variable
;
1014 #ifdef USG_SHARED_LIBRARIES
1016 brk ((void *)bss_end
);
1021 #ifndef SYSTEM_MALLOC
1022 /* Arrange to get warning messages as memory fills up. */
1023 memory_warnings (0, malloc_warning
);
1025 /* Call malloc at least once, to run the initial __malloc_hook.
1026 Also call realloc and free for consistency. */
1027 free (realloc (malloc (4), 4));
1030 /* Arrange to disable interrupt input inside malloc etc. */
1031 uninterrupt_malloc ();
1032 # endif /* not SYNC_INPUT */
1033 #endif /* not SYSTEM_MALLOC */
1035 #ifdef FORWARD_SIGNAL_TO_MAIN_THREAD
1036 main_thread
= pthread_self ();
1037 #endif /* FORWARD_SIGNAL_TO_MAIN_THREAD */
1039 #if defined (MSDOS) || defined (WINDOWSNT)
1040 /* We do all file input/output as binary files. When we need to translate
1041 newlines, we do that manually. */
1043 #endif /* MSDOS || WINDOWSNT */
1047 if (!isatty (fileno (stdin
)))
1048 setmode (fileno (stdin
), O_BINARY
);
1049 if (!isatty (fileno (stdout
)))
1052 setmode (fileno (stdout
), O_BINARY
);
1054 #else /* not __DJGPP__ >= 2 */
1055 (stdin
)->_flag
&= ~_IOTEXT
;
1056 (stdout
)->_flag
&= ~_IOTEXT
;
1057 (stderr
)->_flag
&= ~_IOTEXT
;
1058 #endif /* not __DJGPP__ >= 2 */
1061 #ifdef SET_EMACS_PRIORITY
1063 nice (emacs_priority
);
1065 #endif /* SET_EMACS_PRIORITY */
1067 /* Skip initial setlocale if LC_ALL is "C", as it's not needed in that case.
1068 The build procedure uses this while dumping, to ensure that the
1069 dumped Emacs does not have its system locale tables initialized,
1070 as that might cause screwups when the dumped Emacs starts up. */
1072 char *lc_all
= getenv ("LC_ALL");
1073 do_initial_setlocale
= ! lc_all
|| strcmp (lc_all
, "C");
1076 /* Set locale now, so that initial error messages are localized properly.
1077 fixup_locale must wait until later, since it builds strings. */
1078 if (do_initial_setlocale
)
1079 setlocale (LC_ALL
, "");
1081 inhibit_window_system
= 0;
1083 /* Handle the -t switch, which specifies filename to use as terminal. */
1087 if (argmatch (argv
, argc
, "-t", "--terminal", 4, &term
, &skip_args
))
1092 result
= emacs_open (term
, O_RDWR
, 0);
1095 char *errstring
= strerror (errno
);
1096 fprintf (stderr
, "%s: %s: %s\n", argv
[0], term
, errstring
);
1102 fprintf (stderr
, "%s: %s: not a tty\n", argv
[0], term
);
1105 fprintf (stderr
, "Using %s\n", term
);
1106 #ifdef HAVE_WINDOW_SYSTEM
1107 inhibit_window_system
= 1; /* -t => -nw */
1114 /* Command line option --no-windows is deprecated and thus not mentioned
1115 in the manual and usage informations. */
1116 if (argmatch (argv
, argc
, "-nw", "--no-window-system", 6, NULL
, &skip_args
)
1117 || argmatch (argv
, argc
, "-nw", "--no-windows", 6, NULL
, &skip_args
))
1118 inhibit_window_system
= 1;
1120 /* Handle the -batch switch, which means don't do interactive display. */
1122 if (argmatch (argv
, argc
, "-batch", "--batch", 5, NULL
, &skip_args
))
1125 Vundo_outer_limit
= Qnil
;
1127 if (argmatch (argv
, argc
, "-script", "--script", 3, &junk
, &skip_args
))
1129 noninteractive
= 1; /* Set batch mode. */
1130 /* Convert --script to -scriptload, un-skip it, and sort again
1131 so that it will be handled in proper sequence. */
1132 /* FIXME broken for --script=FILE - is that supposed to work? */
1133 argv
[skip_args
- 1] = "-scriptload";
1135 sort_args (argc
, argv
);
1138 /* Handle the --help option, which gives a usage message. */
1139 if (argmatch (argv
, argc
, "-help", "--help", 3, NULL
, &skip_args
))
1141 printf (USAGE1
, argv
[0], USAGE2
);
1143 printf (USAGE4
, bug_reporting_address ());
1147 if (! noninteractive
)
1152 inherited_pgroup
= EMACS_GETPGRP (0);
1153 setpgrp (0, getpid ());
1156 #if defined (USG5) && defined (INTERRUPT_INPUT)
1160 #if defined (HAVE_GTK_AND_PTHREAD) && !defined (SYSTEM_MALLOC) && !defined (DOUG_LEA_MALLOC)
1162 extern void malloc_enable_thread
P_ ((void));
1164 malloc_enable_thread ();
1171 /* Don't catch SIGHUP if dumping. */
1178 sigblock (sigmask (SIGHUP
));
1179 /* In --batch mode, don't catch SIGHUP if already ignored.
1180 That makes nohup work. */
1181 if (! noninteractive
1182 || signal (SIGHUP
, SIG_IGN
) != SIG_IGN
)
1183 signal (SIGHUP
, fatal_error_signal
);
1184 sigunblock (sigmask (SIGHUP
));
1189 ! noninteractive
|| initialized
1195 /* Don't catch these signals in batch mode if dumping.
1196 On some machines, this sets static data that would make
1197 signal fail to work right when the dumped Emacs is run. */
1198 signal (SIGQUIT
, fatal_error_signal
);
1199 signal (SIGILL
, fatal_error_signal
);
1200 signal (SIGTRAP
, fatal_error_signal
);
1202 add_user_signal (SIGUSR1
, "sigusr1");
1205 add_user_signal (SIGUSR2
, "sigusr2");
1208 signal (SIGABRT
, fatal_error_signal
);
1211 signal (SIGHWE
, fatal_error_signal
);
1214 signal (SIGPRE
, fatal_error_signal
);
1217 signal (SIGORE
, fatal_error_signal
);
1220 signal (SIGUME
, fatal_error_signal
);
1223 signal (SIGDLK
, fatal_error_signal
);
1226 signal (SIGCPULIM
, fatal_error_signal
);
1229 /* This is missing on some systems - OS/2, for example. */
1230 signal (SIGIOT
, fatal_error_signal
);
1233 signal (SIGEMT
, fatal_error_signal
);
1235 signal (SIGFPE
, fatal_error_signal
);
1237 signal (SIGBUS
, fatal_error_signal
);
1239 signal (SIGSEGV
, fatal_error_signal
);
1241 signal (SIGSYS
, fatal_error_signal
);
1243 signal (SIGTERM
, fatal_error_signal
);
1245 signal (SIGXCPU
, fatal_error_signal
);
1248 signal (SIGXFSZ
, fatal_error_signal
);
1249 #endif /* SIGXFSZ */
1252 /* This just means available memory is getting low. */
1253 signal (SIGDANGER
, memory_warning_signal
);
1257 /* 20 is SIGCHLD, 21 is SIGTTIN, 22 is SIGTTOU. */
1258 signal (SIGXCPU
, fatal_error_signal
);
1260 signal (SIGIOINT
, fatal_error_signal
);
1262 signal (SIGGRANT
, fatal_error_signal
);
1263 signal (SIGRETRACT
, fatal_error_signal
);
1264 signal (SIGSOUND
, fatal_error_signal
);
1265 signal (SIGMSG
, fatal_error_signal
);
1269 noninteractive1
= noninteractive
;
1271 /* Perform basic initializations (not merely interning symbols). */
1278 init_character_once ();
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 /* XXX syms_of_keyboard uses some symbols in keymap.c. It would
1295 be better to arrange things not to have this dependency. */
1297 /* Call syms_of_keyboard before init_window_once because
1298 keyboard sets up symbols that include some face names that
1299 the X support will want to use. This can happen when
1300 CANNOT_DUMP is defined. */
1301 syms_of_keyboard ();
1304 /* init_window_once calls make_terminal_frame which on Mac OS
1305 creates a full-fledge output_mac type frame. This does not
1306 work correctly before syms_of_textprop, syms_of_macfns,
1307 syms_of_ccl, syms_of_fontset, syms_of_xterm, syms_of_search,
1308 syms_of_frame, mac_term_init, and init_keyboard have already
1310 syms_of_textprop ();
1316 syms_of_macselect ();
1321 mac_term_init (build_string ("Mac"), NULL
, NULL
);
1324 /* Called before syms_of_fileio, because it sets up Qerror_condition. */
1327 /* Before syms_of_coding to initialize Vgc_cons_threshold. */
1329 /* Before syms_of_coding because it initializes Qcharsetp. */
1331 /* Before init_window_once, because it sets up the
1332 Vcoding_system_hash_table. */
1333 syms_of_coding (); /* This should be after syms_of_fileio. */
1335 init_window_once (); /* Init the window system. */
1336 init_fileio_once (); /* Must precede any path manipulation. */
1337 #ifdef HAVE_WINDOW_SYSTEM
1338 init_fringe_once (); /* Swap bitmaps if necessary. */
1339 #endif /* HAVE_WINDOW_SYSTEM */
1344 if (do_initial_setlocale
)
1347 Vsystem_messages_locale
= Vprevious_system_messages_locale
;
1348 Vsystem_time_locale
= Vprevious_system_time_locale
;
1353 #ifdef CLASH_DETECTION
1357 running_asynch_code
= 0;
1359 /* Handle --unibyte and the EMACS_UNIBYTE envvar,
1360 but not while dumping. */
1363 int inhibit_unibyte
= 0;
1365 /* --multibyte overrides EMACS_UNIBYTE. */
1366 if (argmatch (argv
, argc
, "-no-unibyte", "--no-unibyte", 4, NULL
, &skip_args
)
1367 || argmatch (argv
, argc
, "-multibyte", "--multibyte", 4, NULL
, &skip_args
)
1368 /* Ignore EMACS_UNIBYTE before dumping. */
1369 || (!initialized
&& noninteractive
))
1370 inhibit_unibyte
= 1;
1372 /* --unibyte requests that we set up to do everything with single-byte
1373 buffers and strings. We need to handle this before calling
1374 init_lread, init_editfns and other places that generate Lisp strings
1375 from text in the environment. */
1376 /* Actually this shouldn't be needed as of 20.4 in a generally
1377 unibyte environment. As handa says, environment values
1378 aren't now decoded; also existing buffers are now made
1379 unibyte during startup if .emacs sets unibyte. Tested with
1380 8-bit data in environment variables and /etc/passwd, setting
1381 unibyte and Latin-1 in .emacs. -- Dave Love */
1382 if (argmatch (argv
, argc
, "-unibyte", "--unibyte", 4, NULL
, &skip_args
)
1383 || argmatch (argv
, argc
, "-no-multibyte", "--no-multibyte", 4, NULL
, &skip_args
)
1384 || (getenv ("EMACS_UNIBYTE") && !inhibit_unibyte
))
1386 Lisp_Object old_log_max
;
1387 Lisp_Object symbol
, tail
;
1389 symbol
= intern ("default-enable-multibyte-characters");
1390 Fset (symbol
, Qnil
);
1394 /* Erase pre-dump messages in *Messages* now so no abort. */
1395 old_log_max
= Vmessage_log_max
;
1396 XSETFASTINT (Vmessage_log_max
, 0);
1397 message_dolog ("", 0, 1, 0);
1398 Vmessage_log_max
= old_log_max
;
1401 for (tail
= Vbuffer_alist
; CONSP (tail
);
1406 buffer
= Fcdr (XCAR (tail
));
1407 /* Make a multibyte buffer unibyte. */
1408 if (BUF_Z_BYTE (XBUFFER (buffer
)) > BUF_Z (XBUFFER (buffer
)))
1410 struct buffer
*current
= current_buffer
;
1412 set_buffer_temp (XBUFFER (buffer
));
1413 Fset_buffer_multibyte (Qnil
);
1414 set_buffer_temp (current
);
1421 = argmatch (argv
, argc
, "-nl", "--no-loadup", 6, NULL
, &skip_args
);
1423 #ifdef HAVE_X_WINDOWS
1424 /* Stupid kludge to catch command-line display spec. We can't
1425 handle this argument entirely in window system dependent code
1426 because we don't even know which window system dependent code
1427 to run until we've recognized this argument. */
1429 char *displayname
= 0;
1430 int count_before
= skip_args
;
1432 /* Skip any number of -d options, but only use the last one. */
1435 int count_before_this
= skip_args
;
1437 if (argmatch (argv
, argc
, "-d", "--display", 3, &displayname
, &skip_args
))
1439 else if (argmatch (argv
, argc
, "-display", 0, 3, &displayname
, &skip_args
))
1444 count_before
= count_before_this
;
1447 /* If we have the form --display=NAME,
1448 convert it into -d name.
1449 This requires inserting a new element into argv. */
1450 if (displayname
!= 0 && skip_args
- count_before
== 1)
1452 char **new = (char **) xmalloc (sizeof (char *) * (argc
+ 2));
1455 for (j
= 0; j
< count_before
+ 1; j
++)
1457 new[count_before
+ 1] = "-d";
1458 new[count_before
+ 2] = displayname
;
1459 for (j
= count_before
+ 2; j
<argc
; j
++)
1460 new[j
+ 1] = argv
[j
];
1464 /* Change --display to -d, when its arg is separate. */
1465 else if (displayname
!= 0 && skip_args
> count_before
1466 && argv
[count_before
+ 1][1] == '-')
1467 argv
[count_before
+ 1] = "-d";
1469 /* Don't actually discard this arg. */
1470 skip_args
= count_before
;
1474 /* argmatch must not be used after here,
1475 except when bulding temacs
1476 because the -d argument has not been skipped in skip_args. */
1479 /* Call early 'cause init_environment needs it. */
1481 /* Set defaults for several environment variables. */
1483 init_environment (argc
, argv
, skip_args
);
1490 /* Initialize environment from registry settings. */
1491 init_environment (argv
);
1492 init_ntproc (); /* must precede init_editfns. */
1495 #if defined (MAC_OSX) && defined (HAVE_CARBON)
1497 init_mac_osx_environment ();
1500 /* egetenv is a pretty low-level facility, which may get called in
1501 many circumstances; it seems flimsy to put off initializing it
1502 until calling init_callproc. */
1503 set_initial_environment ();
1504 /* AIX crashes are reported in system versions 3.2.3 and 3.2.4
1505 if this is not done. Do it after set_global_environment so that we
1506 don't pollute Vglobal_environment. */
1507 /* Setting LANG here will defeat the startup locale processing... */
1512 init_buffer (); /* Init default directory of main buffer. */
1514 init_callproc_1 (); /* Must precede init_cmdargs and init_sys_modes. */
1515 init_cmdargs (argc
, argv
, skip_args
); /* Must precede init_lread. */
1519 /* Erase any pre-dump messages in the message log, to avoid confusion. */
1520 Lisp_Object old_log_max
;
1521 old_log_max
= Vmessage_log_max
;
1522 XSETFASTINT (Vmessage_log_max
, 0);
1523 message_dolog ("", 0, 1, 0);
1524 Vmessage_log_max
= old_log_max
;
1527 init_callproc (); /* Must follow init_cmdargs but not init_sys_modes. */
1530 /* Intern the names of all standard functions and variables;
1531 define standard keys. */
1535 /* The basic levels of Lisp must come first. */
1536 /* And data must come first of all
1537 for the sake of symbols like error-message. */
1538 /* Called before init_window_once for Mac OS Classic. */
1545 syms_of_floatfns ();
1548 syms_of_bytecode ();
1550 syms_of_casefiddle ();
1552 syms_of_callproc ();
1553 syms_of_category ();
1555 syms_of_character ();
1557 #ifndef NO_DIR_LIBRARY
1559 #endif /* not NO_DIR_LIBRARY */
1564 #ifdef CLASH_DETECTION
1565 syms_of_filelock ();
1566 #endif /* CLASH_DETECTION */
1569 /* syms_of_keymap (); */
1577 syms_of_terminal ();
1583 syms_of_textprop ();
1584 syms_of_composite ();
1590 #endif /* WINDOWSNT */
1594 #ifdef HAVE_WINDOW_SYSTEM
1597 #endif /* HAVE_WINDOW_SYSTEM */
1598 #ifdef HAVE_X_WINDOWS
1608 #endif /* HAVE_X_WINDOWS */
1610 #ifdef HAVE_X_WINDOWS
1616 /* Called before init_window_once for Mac OS Classic. */
1624 syms_of_w32select ();
1627 #endif /* HAVE_NTGUI */
1629 #if defined (MAC_OSX) && defined (HAVE_CARBON)
1633 syms_of_macselect ();
1635 #endif /* MAC_OSX && HAVE_CARBON */
1638 syms_of_dbusbind ();
1639 #endif /* HAVE_DBUS */
1649 keys_of_casefiddle ();
1652 keys_of_keyboard ();
1658 /* Initialization that must be done even if the global variable
1659 initialized is non zero. */
1661 globals_of_w32fns ();
1662 globals_of_w32menu ();
1663 globals_of_w32select ();
1664 #endif /* HAVE_NTGUI */
1669 init_editfns (); /* init_process uses Voperating_system_release. */
1670 init_process (); /* init_display uses add_keyboard_wait_descriptor. */
1671 init_keyboard (); /* This too must precede init_sys_modes. */
1673 init_vmsproc (); /* And this too. */
1675 if (!noninteractive
)
1678 init_vms_input ();/* init_display calls get_tty_size, that needs this. */
1680 init_display (); /* Determine terminal type. Calls init_sys_modes. */
1684 #ifdef HAVE_WINDOW_SYSTEM
1687 #endif /* HAVE_WINDOW_SYSTEM */
1701 /* Handle -l loadup, args passed by Makefile. */
1702 if (argmatch (argv
, argc
, "-l", "--load", 3, &file
, &skip_args
))
1703 Vtop_level
= Fcons (intern ("load"),
1704 Fcons (build_string (file
), Qnil
));
1705 /* Unless next switch is -nl, load "loadup.el" first thing. */
1707 Vtop_level
= Fcons (intern ("load"),
1708 Fcons (build_string ("loadup.el"), Qnil
));
1715 /* If the execution TZ happens to be the same as the dump TZ,
1716 change it to some other value and then change it back,
1717 to force the underlying implementation to reload the TZ info.
1718 This is needed on implementations that load TZ info from files,
1719 since the TZ file contents may differ between dump and execution. */
1720 char *tz
= getenv ("TZ");
1721 if (tz
&& !strcmp (tz
, dump_tz
))
1731 /* Set up for profiling. This is known to work on FreeBSD,
1732 GNU/Linux and MinGW. It might work on some other systems too.
1733 Give it a try and tell us if it works on your system. To compile
1734 for profiling, add -pg to the switches your platform uses in
1735 CFLAGS and LDFLAGS. For example:
1736 `make CFLAGS="-pg -g -O -DPROFILING=1" LDFLAGS="-pg -g"'. */
1737 #if defined (__FreeBSD__) || defined (GNU_LINUX) || defined(__MINGW32__)
1741 extern void _mcleanup ();
1743 extern unsigned char etext
asm ("etext");
1747 extern void safe_bcopy ();
1748 extern void dump_opcode_frequencies ();
1751 /* This uses safe_bcopy because that function comes first in the
1752 Emacs executable. It might be better to use something that
1753 gives the start of the text segment, but start_of_text is not
1754 defined on all systems now. */
1755 monstartup (safe_bcopy
, &etext
);
1764 #ifdef LOCALTIME_CACHE
1765 /* Some versions of localtime have a bug. They cache the value of the time
1766 zone rather than looking it up every time. Since localtime() is
1767 called to bolt the undumping time into the undumped emacs, this
1768 results in localtime ignoring the TZ environment variable.
1769 This flushes the new TZ value into localtime. */
1771 #endif /* defined (LOCALTIME_CACHE) */
1773 /* Enter editor command loop. This never returns. */
1779 /* Sort the args so we can find the most important ones
1780 at the beginning of argv. */
1782 /* First, here's a table of all the standard options. */
1784 struct standard_args
1792 struct standard_args standard_args
[] =
1794 { "-version", "--version", 150, 0 },
1796 { "-nl", "--no-shared-memory", 140, 0 },
1799 { "-map", "--map-data", 130, 0 },
1801 { "-t", "--terminal", 120, 1 },
1802 { "-nw", "--no-window-system", 110, 0 },
1803 { "-nw", "--no-windows", 110, 0 },
1804 { "-batch", "--batch", 100, 0 },
1805 { "-script", "--script", 100, 1 },
1806 { "-help", "--help", 90, 0 },
1807 { "-no-unibyte", "--no-unibyte", 83, 0 },
1808 { "-multibyte", "--multibyte", 82, 0 },
1809 { "-unibyte", "--unibyte", 81, 0 },
1810 { "-no-multibyte", "--no-multibyte", 80, 0 },
1811 { "-nl", "--no-loadup", 70, 0 },
1812 /* -d must come last before the options handled in startup.el. */
1813 { "-d", "--display", 60, 1 },
1814 { "-display", 0, 60, 1 },
1815 /* Now for the options handled in startup.el. */
1816 { "-Q", "--quick", 55, 0 },
1817 { "-quick", 0, 55, 0 },
1818 { "-q", "--no-init-file", 50, 0 },
1819 { "-no-init-file", 0, 50, 0 },
1820 { "-no-site-file", "--no-site-file", 40, 0 },
1821 { "-u", "--user", 30, 1 },
1822 { "-user", 0, 30, 1 },
1823 { "-debug-init", "--debug-init", 20, 0 },
1824 { "-nbi", "--no-bitmap-icon", 15, 0 },
1825 { "-iconic", "--iconic", 15, 0 },
1826 { "-D", "--basic-display", 12, 0},
1827 { "-basic-display", 0, 12, 0},
1828 { "-bg", "--background-color", 10, 1 },
1829 { "-background", 0, 10, 1 },
1830 { "-fg", "--foreground-color", 10, 1 },
1831 { "-foreground", 0, 10, 1 },
1832 { "-bd", "--border-color", 10, 1 },
1833 { "-bw", "--border-width", 10, 1 },
1834 { "-ib", "--internal-border", 10, 1 },
1835 { "-ms", "--mouse-color", 10, 1 },
1836 { "-cr", "--cursor-color", 10, 1 },
1837 { "-nbc", "--no-blinking-cursor", 10, 0 },
1838 { "-fn", "--font", 10, 1 },
1839 { "-font", 0, 10, 1 },
1840 { "-fs", "--fullscreen", 10, 0 },
1841 { "-fw", "--fullwidth", 10, 0 },
1842 { "-fh", "--fullheight", 10, 0 },
1843 { "-g", "--geometry", 10, 1 },
1844 { "-geometry", 0, 10, 1 },
1845 { "-T", "--title", 10, 1 },
1846 { "-title", 0, 10, 1 },
1847 { "-name", "--name", 10, 1 },
1848 { "-xrm", "--xrm", 10, 1 },
1849 { "-parent-id", "--parent-id", 10, 1 },
1850 { "-r", "--reverse-video", 5, 0 },
1852 { "-reverse", 0, 5, 0 },
1853 { "-hb", "--horizontal-scroll-bars", 5, 0 },
1854 { "-vb", "--vertical-scroll-bars", 5, 0 },
1855 { "-color", "--color", 5, 0},
1856 { "-no-splash", "--no-splash", 3, 0 },
1857 { "-no-desktop", "--no-desktop", 3, 0 },
1858 /* These have the same priority as ordinary file name args,
1859 so they are not reordered with respect to those. */
1860 { "-L", "--directory", 0, 1 },
1861 { "-directory", 0, 0, 1 },
1862 { "-l", "--load", 0, 1 },
1863 { "-load", 0, 0, 1 },
1864 /* This has no longname, because using --scriptload confuses sort_args,
1865 because then the --script long option seems to match twice; ie
1866 you can't have a long option which is a prefix of another long
1867 option. In any case, this is entirely an internal option. */
1868 { "-scriptload", NULL
, 0, 1 },
1869 { "-f", "--funcall", 0, 1 },
1870 { "-funcall", 0, 0, 1 },
1871 { "-eval", "--eval", 0, 1 },
1872 { "-execute", "--execute", 0, 1 },
1873 { "-find-file", "--find-file", 0, 1 },
1874 { "-visit", "--visit", 0, 1 },
1875 { "-file", "--file", 0, 1 },
1876 { "-insert", "--insert", 0, 1 },
1877 /* This should be processed after ordinary file name args and the like. */
1878 { "-kill", "--kill", -10, 0 },
1881 /* Reorder the elements of ARGV (assumed to have ARGC elements)
1882 so that the highest priority ones come first.
1883 Do not change the order of elements of equal priority.
1884 If an option takes an argument, keep it and its argument together.
1886 If an option that takes no argument appears more
1887 than once, eliminate all but one copy of it. */
1890 sort_args (argc
, argv
)
1894 char **new = (char **) xmalloc (sizeof (char *) * argc
);
1895 /* For each element of argv,
1896 the corresponding element of options is:
1897 0 for an option that takes no arguments,
1898 1 for an option that takes one argument, etc.
1899 -1 for an ordinary non-option argument. */
1900 int *options
= (int *) xmalloc (sizeof (int) * argc
);
1901 int *priority
= (int *) xmalloc (sizeof (int) * argc
);
1903 int incoming_used
= 1;
1907 /* Categorize all the options,
1908 and figure out which argv elts are option arguments. */
1909 for (from
= 1; from
< argc
; from
++)
1913 if (argv
[from
][0] == '-')
1918 /* If we have found "--", don't consider
1919 any more arguments as options. */
1920 if (argv
[from
][1] == '-' && argv
[from
][2] == 0)
1922 /* Leave the "--", and everything following it, at the end. */
1923 for (; from
< argc
; from
++)
1925 priority
[from
] = -100;
1931 /* Look for a match with a known old-fashioned option. */
1932 for (i
= 0; i
< sizeof (standard_args
) / sizeof (standard_args
[0]); i
++)
1933 if (!strcmp (argv
[from
], standard_args
[i
].name
))
1935 options
[from
] = standard_args
[i
].nargs
;
1936 priority
[from
] = standard_args
[i
].priority
;
1937 if (from
+ standard_args
[i
].nargs
>= argc
)
1938 fatal ("Option `%s' requires an argument\n", argv
[from
]);
1939 from
+= standard_args
[i
].nargs
;
1943 /* Look for a match with a known long option.
1944 MATCH is -1 if no match so far, -2 if two or more matches so far,
1945 >= 0 (the table index of the match) if just one match so far. */
1946 if (argv
[from
][1] == '-')
1949 thislen
= strlen (argv
[from
]);
1950 equals
= index (argv
[from
], '=');
1952 thislen
= equals
- argv
[from
];
1955 i
< sizeof (standard_args
) / sizeof (standard_args
[0]); i
++)
1956 if (standard_args
[i
].longname
1957 && !strncmp (argv
[from
], standard_args
[i
].longname
,
1966 /* If we found exactly one match, use that. */
1969 options
[from
] = standard_args
[match
].nargs
;
1970 priority
[from
] = standard_args
[match
].priority
;
1971 /* If --OPTION=VALUE syntax is used,
1972 this option uses just one argv element. */
1975 if (from
+ options
[from
] >= argc
)
1976 fatal ("Option `%s' requires an argument\n", argv
[from
]);
1977 from
+= options
[from
];
1979 /* FIXME When match < 0, shouldn't there be some error,
1980 or at least indication to the user that there was a
1987 /* Copy the arguments, in order of decreasing priority, to NEW. */
1989 while (incoming_used
< argc
)
1992 int best_priority
= -9999;
1994 /* Find the highest priority remaining option.
1995 If several have equal priority, take the first of them. */
1996 for (from
= 1; from
< argc
; from
++)
1998 if (argv
[from
] != 0 && priority
[from
] > best_priority
)
2000 best_priority
= priority
[from
];
2003 /* Skip option arguments--they are tied to the options. */
2004 if (options
[from
] > 0)
2005 from
+= options
[from
];
2011 /* Copy the highest priority remaining option, with its args, to NEW.
2012 Unless it is a duplicate of the previous one. */
2013 if (! (options
[best
] == 0
2014 && ! strcmp (new[to
- 1], argv
[best
])))
2016 new[to
++] = argv
[best
];
2017 for (i
= 0; i
< options
[best
]; i
++)
2018 new[to
++] = argv
[best
+ i
+ 1];
2021 incoming_used
+= 1 + (options
[best
] > 0 ? options
[best
] : 0);
2023 /* Clear out this option in ARGV. */
2025 for (i
= 0; i
< options
[best
]; i
++)
2026 argv
[best
+ i
+ 1] = 0;
2029 /* If duplicate options were deleted, fill up extra space with null ptrs. */
2033 bcopy (new, argv
, sizeof (char *) * argc
);
2040 DEFUN ("kill-emacs", Fkill_emacs
, Skill_emacs
, 0, 1, "P",
2041 doc
: /* Exit the Emacs job and kill it.
2042 If ARG is an integer, return ARG as the exit program code.
2043 If ARG is a string, stuff it as keyboard input.
2045 The value of `kill-emacs-hook', if not void,
2046 is a list of functions (of no args),
2047 all of which are called before Emacs is actually killed. */)
2051 struct gcpro gcpro1
;
2058 if (!NILP (Vrun_hooks
) && !noninteractive
)
2059 call1 (Vrun_hooks
, intern ("kill-emacs-hook"));
2063 /* Is it really necessary to do this deassign
2064 when we are going to exit anyway? */
2069 shut_down_emacs (0, 0, STRINGP (arg
) ? arg
: Qnil
);
2071 /* If we have an auto-save list file,
2072 kill it because we are exiting Emacs deliberately (not crashing).
2073 Do it after shut_down_emacs, which does an auto-save. */
2074 if (STRINGP (Vauto_save_list_file_name
))
2075 unlink (SDATA (Vauto_save_list_file_name
));
2077 exit (INTEGERP (arg
) ? XINT (arg
) : EXIT_SUCCESS
);
2083 /* Perform an orderly shutdown of Emacs. Autosave any modified
2084 buffers, kill any child processes, clean up the terminal modes (if
2085 we're in the foreground), and other stuff like that. Don't perform
2086 any redisplay; this may be called when Emacs is shutting down in
2087 the background, or after its X connection has died.
2089 If SIG is a signal number, print a message for it.
2091 This is called by fatal signal handlers, X protocol error handlers,
2095 shut_down_emacs (sig
, no_x
, stuff
)
2099 /* Prevent running of hooks from now on. */
2102 /* Don't update display from now on. */
2103 Vinhibit_redisplay
= Qt
;
2105 /* If we are controlling the terminal, reset terminal modes. */
2106 #ifdef EMACS_HAVE_TTY_PGRP
2108 int pgrp
= EMACS_GETPGRP (0);
2111 if (EMACS_GET_TTY_PGRP (0, &tpgrp
) != -1
2114 reset_all_sys_modes ();
2115 if (sig
&& sig
!= SIGTERM
)
2116 fprintf (stderr
, "Fatal error (%d)", sig
);
2121 reset_all_sys_modes ();
2124 stuff_buffered_input (stuff
);
2127 inhibit_sentinels
= 1;
2129 kill_buffer_processes (Qnil
);
2130 Fdo_auto_save (Qt
, Qnil
);
2132 #ifdef CLASH_DETECTION
2133 unlock_all_files ();
2137 kill_vms_processes ();
2140 #if 0 /* This triggers a bug in XCloseDisplay and is not needed. */
2141 #ifdef HAVE_X_WINDOWS
2142 /* It's not safe to call intern here. Maybe we are crashing. */
2143 if (!noninteractive
&& SYMBOLP (Vinitial_window_system
)
2144 && SCHARS (SYMBOL_NAME (Vinitial_window_system
)) == 1
2145 && SREF (SYMBOL_NAME (Vinitial_window_system
), 0) == 'x'
2147 Fx_close_current_connection ();
2148 #endif /* HAVE_X_WINDOWS */
2152 /* There is a tendency for a SIGIO signal to arrive within exit,
2153 and cause a SIGHUP because the input descriptor is already closed. */
2155 signal (SIGIO
, SIG_IGN
);
2162 /* Do this only if terminating normally, we want glyph matrices
2163 etc. in a core dump. */
2164 if (sig
== 0 || sig
== SIGTERM
)
2166 check_glyph_memory ();
2167 check_message_stack ();
2181 DEFUN ("dump-emacs-data", Fdump_emacs_data
, Sdump_emacs_data
, 1, 1, 0,
2182 doc
: /* Dump current state of Emacs into data file FILENAME.
2183 This function exists on systems that use HAVE_SHM. */)
2185 Lisp_Object filename
;
2187 extern char my_edata
[];
2191 CHECK_STRING (filename
);
2192 filename
= Fexpand_file_name (filename
, Qnil
);
2195 Vpurify_flag
= Qnil
;
2198 /* Tell malloc where start of impure now is. */
2199 /* Also arrange for warnings when nearly out of space. */
2200 #ifndef SYSTEM_MALLOC
2201 memory_warnings (my_edata
, malloc_warning
);
2203 map_out_data (SDATA (filename
));
2210 #else /* not HAVE_SHM */
2212 DEFUN ("dump-emacs", Fdump_emacs
, Sdump_emacs
, 2, 2, 0,
2213 doc
: /* Dump current state of Emacs into executable file FILENAME.
2214 Take symbols from SYMFILE (presumably the file you executed to run Emacs).
2215 This is used in the file `loadup.el' when building Emacs.
2217 You must run Emacs in batch mode in order to dump it. */)
2219 Lisp_Object filename
, symfile
;
2221 extern char my_edata
[];
2224 int count
= SPECPDL_INDEX ();
2228 if (! noninteractive
)
2229 error ("Dumping Emacs works only in batch mode");
2232 if (heap_bss_diff
> MAX_HEAP_BSS_DIFF
)
2234 fprintf (stderr
, "**************************************************\n");
2235 fprintf (stderr
, "Warning: Your system has a gap between BSS and the\n");
2236 fprintf (stderr
, "heap (%lu bytes). This usually means that exec-shield\n",
2238 fprintf (stderr
, "or something similar is in effect. The dump may\n");
2239 fprintf (stderr
, "fail because of this. See the section about\n");
2240 fprintf (stderr
, "exec-shield in etc/PROBLEMS for more information.\n");
2241 fprintf (stderr
, "**************************************************\n");
2243 #endif /* GNU_LINUX */
2245 /* Bind `command-line-processed' to nil before dumping,
2246 so that the dumped Emacs will process its command line
2247 and set up to work with X windows if appropriate. */
2248 symbol
= intern ("command-line-processed");
2249 specbind (symbol
, Qnil
);
2251 CHECK_STRING (filename
);
2252 filename
= Fexpand_file_name (filename
, Qnil
);
2253 if (!NILP (symfile
))
2255 CHECK_STRING (symfile
);
2256 if (SCHARS (symfile
))
2257 symfile
= Fexpand_file_name (symfile
, Qnil
);
2261 Vpurify_flag
= Qnil
;
2264 set_time_zone_rule (dump_tz
);
2265 #ifndef LOCALTIME_CACHE
2266 /* Force a tz reload, since set_time_zone_rule doesn't. */
2273 mapout_data (SDATA (filename
));
2275 /* Tell malloc where start of impure now is. */
2276 /* Also arrange for warnings when nearly out of space. */
2277 #ifndef SYSTEM_MALLOC
2279 /* On Windows, this was done before dumping, and that once suffices.
2280 Meanwhile, my_edata is not valid on Windows. */
2281 memory_warnings (my_edata
, malloc_warning
);
2282 #endif /* not WINDOWSNT */
2284 #if !defined (SYSTEM_MALLOC) && defined (HAVE_GTK_AND_PTHREAD) && !defined SYNC_INPUT
2285 /* Pthread may call malloc before main, and then we will get an endless
2286 loop, because pthread_self (see alloc.c) calls malloc the first time
2287 it is called on some systems. */
2288 reset_malloc_hooks ();
2290 #ifdef DOUG_LEA_MALLOC
2291 malloc_state_ptr
= malloc_get_state ();
2294 #ifdef USE_MMAP_FOR_BUFFERS
2297 unexec (SDATA (filename
),
2298 !NILP (symfile
) ? SDATA (symfile
) : 0, my_edata
, 0, 0);
2299 #ifdef USE_MMAP_FOR_BUFFERS
2302 #ifdef DOUG_LEA_MALLOC
2303 free (malloc_state_ptr
);
2305 #endif /* not VMS */
2309 return unbind_to (count
, Qnil
);
2312 #endif /* not HAVE_SHM */
2314 #endif /* not CANNOT_DUMP */
2317 /* Recover from setlocale (LC_ALL, ""). */
2321 /* The Emacs Lisp reader needs LC_NUMERIC to be "C",
2322 so that numbers are read and printed properly for Emacs Lisp. */
2323 setlocale (LC_NUMERIC
, "C");
2326 /* Set system locale CATEGORY, with previous locale *PLOCALE, to
2329 synchronize_locale (category
, plocale
, desired_locale
)
2331 Lisp_Object
*plocale
;
2332 Lisp_Object desired_locale
;
2334 if (! EQ (*plocale
, desired_locale
))
2336 *plocale
= desired_locale
;
2337 setlocale (category
, (STRINGP (desired_locale
)
2338 ? (char *) SDATA (desired_locale
)
2343 /* Set system time locale to match Vsystem_time_locale, if possible. */
2345 synchronize_system_time_locale ()
2347 synchronize_locale (LC_TIME
, &Vprevious_system_time_locale
,
2348 Vsystem_time_locale
);
2351 /* Set system messages locale to match Vsystem_messages_locale, if
2354 synchronize_system_messages_locale ()
2357 synchronize_locale (LC_MESSAGES
, &Vprevious_system_messages_locale
,
2358 Vsystem_messages_locale
);
2361 #endif /* HAVE_SETLOCALE */
2368 decode_env_path (evarname
, defalt
)
2369 char *evarname
, *defalt
;
2371 register char *path
, *p
;
2372 Lisp_Object lpath
, element
, tem
;
2374 /* It's okay to use getenv here, because this function is only used
2375 to initialize variables when Emacs starts up, and isn't called
2378 path
= (char *) getenv (evarname
);
2384 /* Ensure values from the environment use the proper directory separator. */
2387 p
= alloca (strlen (path
) + 1);
2391 if ('/' == DIRECTORY_SEP
)
2392 dostounix_filename (path
);
2394 unixtodos_filename (path
);
2400 p
= index (path
, SEPCHAR
);
2401 if (!p
) p
= path
+ strlen (path
);
2402 element
= (p
- path
? make_string (path
, p
- path
)
2403 : build_string ("."));
2405 /* Add /: to the front of the name
2406 if it would otherwise be treated as magic. */
2407 tem
= Ffind_file_name_handler (element
, Qt
);
2409 /* However, if the handler says "I'm safe",
2410 don't bother adding /:. */
2414 prop
= Fget (tem
, intern ("safe-magic"));
2420 element
= concat2 (build_string ("/:"), element
);
2422 lpath
= Fcons (element
, lpath
);
2428 return Fnreverse (lpath
);
2434 Qfile_name_handler_alist
= intern ("file-name-handler-alist");
2435 staticpro (&Qfile_name_handler_alist
);
2439 defsubr (&Sdump_emacs_data
);
2441 defsubr (&Sdump_emacs
);
2445 defsubr (&Skill_emacs
);
2447 defsubr (&Sinvocation_name
);
2448 defsubr (&Sinvocation_directory
);
2450 DEFVAR_LISP ("command-line-args", &Vcommand_line_args
,
2451 doc
: /* Args passed by shell to Emacs, as a list of strings.
2452 Many arguments are deleted from the list as they are processed. */);
2454 DEFVAR_LISP ("system-type", &Vsystem_type
,
2455 doc
: /* Value is symbol indicating type of operating system you are using.
2457 `gnu/linux' compiled for a GNU/Linux system.
2458 `darwin' compiled for Darwin (GNU-Darwin, Mac OS X, ...).
2459 `macos' compiled for Mac OS 9.
2460 `ms-dos' compiled as an MS-DOS application.
2461 `windows-nt' compiled as a native W32 application.
2462 `cygwin' compiled using the Cygwin library.
2464 `axp-vms' compiled for a (Open)VMS system.
2465 Anything else indicates some sort of Unix system. */);
2466 Vsystem_type
= intern (SYSTEM_TYPE
);
2468 DEFVAR_LISP ("system-configuration", &Vsystem_configuration
,
2469 doc
: /* Value is string indicating configuration Emacs was built for.
2470 On MS-Windows, the value reflects the OS flavor and version on which
2471 Emacs is running. */);
2472 Vsystem_configuration
= build_string (EMACS_CONFIGURATION
);
2474 DEFVAR_LISP ("system-configuration-options", &Vsystem_configuration_options
,
2475 doc
: /* String containing the configuration options Emacs was built with. */);
2476 Vsystem_configuration_options
= build_string (EMACS_CONFIG_OPTIONS
);
2478 DEFVAR_BOOL ("noninteractive", &noninteractive1
,
2479 doc
: /* Non-nil means Emacs is running without interactive terminal. */);
2481 DEFVAR_LISP ("kill-emacs-hook", &Vkill_emacs_hook
,
2482 doc
: /* Hook to be run when `kill-emacs' is called.
2483 Since `kill-emacs' may be invoked when the terminal is disconnected (or
2484 in other similar situations), functions placed on this hook should not
2485 expect to be able to interact with the user. To ask for confirmation,
2486 see `kill-emacs-query-functions' instead.
2488 The hook is not run in batch mode, i.e., if `noninteractive' is non-nil. */);
2489 Vkill_emacs_hook
= Qnil
;
2491 DEFVAR_INT ("emacs-priority", &emacs_priority
,
2492 doc
: /* Priority for Emacs to run at.
2493 This value is effective only if set before Emacs is dumped,
2494 and only if the Emacs executable is installed with setuid to permit
2495 it to change priority. (Emacs sets its uid back to the real uid.)
2496 Currently, you need to define SET_EMACS_PRIORITY in `config.h'
2497 before you compile Emacs, to enable the code for this feature. */);
2500 DEFVAR_LISP ("path-separator", &Vpath_separator
,
2501 doc
: /* String containing the character that separates directories in
2502 search paths, such as PATH and other similar environment variables. */);
2505 Vpath_separator
= make_string (&c
, 1);
2508 DEFVAR_LISP ("invocation-name", &Vinvocation_name
,
2509 doc
: /* The program name that was used to run Emacs.
2510 Any directory names are omitted. */);
2512 DEFVAR_LISP ("invocation-directory", &Vinvocation_directory
,
2513 doc
: /* The directory in which the Emacs executable was found, to run it.
2514 The value is nil if that directory's name is not known. */);
2516 DEFVAR_LISP ("installation-directory", &Vinstallation_directory
,
2517 doc
: /* A directory within which to look for the `lib-src' and `etc' directories.
2518 This is non-nil when we can't find those directories in their standard
2519 installed locations, but we can find them near where the Emacs executable
2521 Vinstallation_directory
= Qnil
;
2523 DEFVAR_LISP ("system-messages-locale", &Vsystem_messages_locale
,
2524 doc
: /* System locale for messages. */);
2525 Vsystem_messages_locale
= Qnil
;
2527 DEFVAR_LISP ("previous-system-messages-locale",
2528 &Vprevious_system_messages_locale
,
2529 doc
: /* Most recently used system locale for messages. */);
2530 Vprevious_system_messages_locale
= Qnil
;
2532 DEFVAR_LISP ("system-time-locale", &Vsystem_time_locale
,
2533 doc
: /* System locale for time. */);
2534 Vsystem_time_locale
= Qnil
;
2536 DEFVAR_LISP ("previous-system-time-locale", &Vprevious_system_time_locale
,
2537 doc
: /* Most recently used system locale for time. */);
2538 Vprevious_system_time_locale
= Qnil
;
2541 /* arch-tag: 7bfd356a-c720-4612-8ab6-aa4222931c2e
2542 (do not change this comment) */