1 /* Fully extensible Emacs, running on Unix, intended for GNU.
2 Copyright (C) 1985, 1986, 1987, 1993, 1994, 1995, 1997, 1998, 1999,
3 2001, 2002, 2003, 2004, 2005, 2006, 2007 Free Software Foundation, Inc.
5 This file is part of GNU Emacs.
7 GNU Emacs is free software; you can redistribute it and/or modify
8 it under the terms of the GNU General Public License as published by
9 the Free Software Foundation; either version 3, or (at your option)
12 GNU Emacs is distributed in the hope that it will be useful,
13 but WITHOUT ANY WARRANTY; without even the implied warranty of
14 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
15 GNU General Public License for more details.
17 You should have received a copy of the GNU General Public License
18 along with GNU Emacs; see the file COPYING. If not, write to
19 the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
20 Boston, MA 02110-1301, USA. */
28 #include <sys/types.h>
40 #include <sys/ioctl.h>
45 #include <windows.h> /* just for w32.h */
47 #include "w32heap.h" /* for prototype of sbrk */
52 #include "intervals.h"
57 #include "blockinput.h"
58 #include "syssignal.h"
61 #include "termhooks.h"
71 #include <sys/resource.h>
74 #ifdef HAVE_PERSONALITY_LINUX32
75 #include <sys/personality.h>
83 #if !defined (USG) || defined (BSD_PGRPS)
85 #define setpgrp setpgid
89 extern void malloc_warning
P_ ((char *));
90 extern void set_time_zone_rule
P_ ((char *));
92 extern char *index
P_ ((const char *, int));
95 /* Make these values available in GDB, which doesn't see macros. */
103 int gdb_use_union
= 0;
105 int gdb_use_union
= 1;
107 EMACS_INT gdb_valbits
= VALBITS
;
108 EMACS_INT gdb_gctypebits
= GCTYPEBITS
;
110 EMACS_INT gdb_data_seg_bits
= DATA_SEG_BITS
;
112 EMACS_INT gdb_data_seg_bits
= 0;
114 EMACS_INT PVEC_FLAG
= PSEUDOVECTOR_FLAG
;
115 EMACS_INT gdb_array_mark_flag
= ARRAY_MARK_FLAG
;
116 /* GDB might say "No enum type named pvec_type" if we don't have at
117 least one symbol with that type, and then xbacktrace could fail. */
118 enum pvec_type gdb_pvec_type
= PVEC_TYPE_MASK
;
120 /* Command line args from shell, as list of strings. */
121 Lisp_Object Vcommand_line_args
;
123 /* The name under which Emacs was invoked, with any leading directory
125 Lisp_Object Vinvocation_name
;
127 /* The directory name from which Emacs was invoked. */
128 Lisp_Object Vinvocation_directory
;
130 /* The directory name in which to find subdirs such as lisp and etc.
131 nil means get them only from PATH_LOADSEARCH. */
132 Lisp_Object Vinstallation_directory
;
134 /* Hook run by `kill-emacs' before it does really anything. */
135 Lisp_Object Vkill_emacs_hook
;
137 /* Empty lisp strings. To avoid having to build any others. */
138 Lisp_Object empty_unibyte_string
, empty_multibyte_string
;
140 /* Search path separator. */
141 Lisp_Object Vpath_separator
;
143 /* Set nonzero after Emacs has started up the first time.
144 Prevents reinitialization of the Lisp world and keymaps
145 on subsequent starts. */
148 #ifdef DOUG_LEA_MALLOC
149 /* Preserves a pointer to the memory allocated that copies that
150 static data inside glibc's malloc. */
151 void *malloc_state_ptr
;
152 /* From glibc, a routine that returns a copy of the malloc internal state. */
153 extern void *malloc_get_state ();
154 /* From glibc, a routine that overwrites the malloc internal state. */
155 extern int malloc_set_state ();
156 /* Non-zero if the MALLOC_CHECK_ enviroment variable was set while
157 dumping. Used to work around a bug in glibc's malloc. */
158 int malloc_using_checking
;
161 /* Variable whose value is symbol giving operating system type. */
162 Lisp_Object Vsystem_type
;
164 /* Variable whose value is string giving configuration built for. */
165 Lisp_Object Vsystem_configuration
;
167 /* Variable whose value is string giving configuration options,
168 for use when reporting bugs. */
169 Lisp_Object Vsystem_configuration_options
;
171 Lisp_Object Qfile_name_handler_alist
;
173 /* Current and previous system locales for messages and time. */
174 Lisp_Object Vsystem_messages_locale
;
175 Lisp_Object Vprevious_system_messages_locale
;
176 Lisp_Object Vsystem_time_locale
;
177 Lisp_Object Vprevious_system_time_locale
;
179 /* If non-zero, emacs should not attempt to use a window-specific code,
180 but instead should use the virtual terminal under which it was started. */
181 int inhibit_window_system
;
183 /* If nonzero, set Emacs to run at this priority. This is also used
184 in child_setup and sys_suspend to make sure subshells run at normal
185 priority; those functions have their own extern declaration. */
186 EMACS_INT emacs_priority
;
188 /* If non-zero, a filter or a sentinel is running. Tested to save the match
189 data on the first attempt to change it inside asynchronous code. */
190 int running_asynch_code
;
194 extern int inherited_pgroup
;
197 #ifdef HAVE_X_WINDOWS
198 /* If non-zero, -d was specified, meaning we're using some window system. */
202 /* An address near the bottom of the stack.
203 Tells GC how to save a copy of the stack. */
206 /* The address where the heap starts (from the first sbrk (0) call). */
207 static void *my_heap_start
;
209 /* The gap between BSS end and heap start as far as we can tell. */
210 static unsigned long heap_bss_diff
;
212 /* If the gap between BSS end and heap start is larger than this we try to
213 work around it, and if that fails, output a warning in dump-emacs. */
214 #define MAX_HEAP_BSS_DIFF (1024*1024)
217 #ifdef HAVE_WINDOW_SYSTEM
218 extern Lisp_Object Vinitial_window_system
;
219 #endif /* HAVE_WINDOW_SYSTEM */
221 extern Lisp_Object Vauto_save_list_file_name
;
223 extern Lisp_Object Vinhibit_redisplay
;
225 #ifdef USG_SHARED_LIBRARIES
226 /* If nonzero, this is the place to put the end of the writable segment
229 unsigned int bss_end
= 0;
232 /* Nonzero means running Emacs without interactive terminal. */
236 /* Value of Lisp variable `noninteractive'.
237 Normally same as C variable `noninteractive'
238 but nothing terrible happens if user sets this one. */
242 /* Save argv and argc. */
246 static void sort_args ();
247 void syms_of_emacs ();
249 /* MSVC needs each string be shorter than 2048 bytes, so the usage
250 strings below are split to not overflow this limit. */
252 Usage: %s [OPTION-OR-FILENAME]...\n\
254 Run Emacs, the extensible, customizable, self-documenting real-time\n\
255 display editor. The recommended way to start Emacs for normal editing\n\
256 is with no options at all.\n\
258 Run M-x info RET m emacs RET m emacs invocation RET inside Emacs to\n\
259 read the main documentation for these command-line arguments.\n\
261 Initialization options:\n\
263 --batch do not do interactive display; implies -q\n\
264 --debug-init enable Emacs Lisp debugger for init file\n\
265 --display, -d DISPLAY use X server DISPLAY\n\
266 --multibyte, --no-unibyte inhibit the effect of EMACS_UNIBYTE\n\
267 --no-desktop do not load a saved desktop\n\
268 --no-init-file, -q load neither ~/.emacs nor default.el\n\
269 --no-shared-memory, -nl do not use shared memory\n\
270 --no-site-file do not load site-start.el\n\
271 --no-splash do not display a splash screen on startup\n\
272 --no-window-system, -nw do not communicate with X, ignoring $DISPLAY\n\
273 --quick, -Q equivalent to -q --no-site-file --no-splash\n\
274 --script FILE run FILE as an Emacs Lisp script\n\
275 --terminal, -t DEVICE use DEVICE for terminal I/O\n\
276 --unibyte, --no-multibyte run Emacs in unibyte mode\n\
277 --user, -u USER load ~USER/.emacs instead of your own\n\
283 FILE visit FILE using find-file\n\
284 +LINE go to line LINE in next FILE\n\
285 +LINE:COLUMN go to line LINE, column COLUMN, in next FILE\n\
286 --directory, -L DIR add DIR to variable load-path\n\
287 --eval EXPR evaluate Emacs Lisp expression EXPR\n\
288 --execute EXPR evaluate Emacs Lisp expression EXPR\n\
289 --file FILE visit FILE using find-file\n\
290 --find-file FILE visit FILE using find-file\n\
291 --funcall, -f FUNC call Emacs Lisp function FUNC with no arguments\n\
292 --insert FILE insert contents of FILE into current buffer\n\
293 --kill exit without asking for confirmation\n\
294 --load, -l FILE load Emacs Lisp FILE using the load function\n\
295 --visit FILE visit FILE using find-file\n\
301 --background-color, -bg COLOR window background color\n\
302 --basic-display, -D disable many display features;\n\
303 used for debugging Emacs\n\
304 --border-color, -bd COLOR main border color\n\
305 --border-width, -bw WIDTH width of main border\n\
306 --color, --color=MODE override color mode for character terminals;\n\
307 MODE defaults to `auto', and can also\n\
308 be `never', `auto', `always',\n\
309 or a mode name like `ansi8'\n\
310 --cursor-color, -cr COLOR color of the Emacs cursor indicating point\n\
311 --font, -fn FONT default font; must be fixed-width\n\
312 --foreground-color, -fg COLOR window foreground color\n\
313 --fullheight, -fh make the first frame high as the screen\n\
314 --fullscreen, -fs make first frame fullscreen\n\
315 --fullwidth, -fw make the first frame wide as the screen\n\
316 --geometry, -g GEOMETRY window geometry\n\
317 --no-bitmap-icon, -nbi do not use picture of gnu for Emacs icon\n\
318 --iconic start Emacs in iconified state\n\
319 --internal-border, -ib WIDTH width between text and main border\n\
320 --line-spacing, -lsp PIXELS additional space to put between lines\n\
321 --mouse-color, -ms COLOR mouse cursor color in Emacs window\n\
322 --name NAME title for initial Emacs frame\n\
323 --no-blinking-cursor, -nbc disable blinking cursor\n\
324 --reverse-video, -r, -rv switch foreground and background\n\
325 --title, -T TITLE title for initial Emacs frame\n\
326 --vertical-scroll-bars, -vb enable vertical scroll bars\n\
327 --xrm XRESOURCES set additional X resources\n\
328 --help display this help and exit\n\
329 --version output version information and exit\n\
333 You can generally also specify long option names with a single -; for\n\
334 example, -batch as well as --batch. You can use any unambiguous\n\
335 abbreviation for a --option.\n\
337 Various environment variables and window system resources also affect\n\
338 Emacs' operation. See the main documentation.\n\
340 Report bugs to %s. First, please see the Bugs\n\
341 section of the Emacs manual or the file BUGS.\n"
344 /* Signal code for the fatal signal that was received. */
345 int fatal_error_code
;
347 /* Nonzero if handling a fatal error already. */
348 int fatal_error_in_progress
;
350 /* If non-null, call this function from fatal_error_signal before
351 committing suicide. */
353 void (*fatal_error_signal_hook
) P_ ((void));
355 #ifdef HAVE_GTK_AND_PTHREAD
356 /* When compiled with GTK and running under Gnome, multiple threads may be
357 created. Keep track of our main thread to make sure signals are delivered
358 to it (see syssignal.h). */
360 pthread_t main_thread
;
364 /* Handle bus errors, invalid instruction, etc. */
366 fatal_error_signal (sig
)
369 SIGNAL_THREAD_CHECK (sig
);
370 fatal_error_code
= sig
;
371 signal (sig
, SIG_DFL
);
373 TOTALLY_UNBLOCK_INPUT
;
375 /* If fatal error occurs in code below, avoid infinite recursion. */
376 if (! fatal_error_in_progress
)
378 fatal_error_in_progress
= 1;
380 shut_down_emacs (sig
, 0, Qnil
);
384 LIB$
STOP (SS$_ABORT
);
386 /* Signal the same code; this time it will really be fatal.
387 Remember that since we're in a signal handler, the signal we're
388 going to send is probably blocked, so we have to unblock it if we
389 want to really receive it. */
391 sigunblock (sigmask (fatal_error_code
));
394 if (fatal_error_signal_hook
)
395 fatal_error_signal_hook ();
397 kill (getpid (), fatal_error_code
);
403 /* Handler for SIGDANGER. */
405 memory_warning_signal (sig
)
408 signal (sig
, memory_warning_signal
);
409 SIGNAL_THREAD_CHECK (sig
);
411 malloc_warning ("Operating system warns that virtual memory is running low.\n");
413 /* It might be unsafe to call do_auto_save now. */
414 force_auto_save_soon ();
418 /* We define abort, rather than using it from the library,
419 so that GDB can return from a breakpoint here.
420 MSDOS has its own definition in msdos.c. */
422 #if ! defined (DOS_NT) && ! defined (NO_ABORT)
424 #ifndef ABORT_RETURN_TYPE
425 #define ABORT_RETURN_TYPE void
431 kill (getpid (), SIGABRT
);
432 /* This shouldn't be executed, but it prevents a warning. */
438 /* Code for dealing with Lisp access to the Unix command line. */
441 init_cmdargs (argc
, argv
, skip_args
)
447 Lisp_Object name
, dir
, tem
;
448 int count
= SPECPDL_INDEX ();
449 Lisp_Object raw_name
;
454 raw_name
= build_string (argv
[0]);
456 /* Add /: to the front of the name
457 if it would otherwise be treated as magic. */
458 tem
= Ffind_file_name_handler (raw_name
, Qt
);
460 raw_name
= concat2 (build_string ("/:"), raw_name
);
462 Vinvocation_name
= Ffile_name_nondirectory (raw_name
);
463 Vinvocation_directory
= Ffile_name_directory (raw_name
);
465 /* If we got no directory in argv[0], search PATH to find where
466 Emacs actually came from. */
467 if (NILP (Vinvocation_directory
))
470 int yes
= openp (Vexec_path
, Vinvocation_name
,
471 Vexec_suffixes
, &found
, make_number (X_OK
));
474 /* Add /: to the front of the name
475 if it would otherwise be treated as magic. */
476 tem
= Ffind_file_name_handler (found
, Qt
);
478 found
= concat2 (build_string ("/:"), found
);
479 Vinvocation_directory
= Ffile_name_directory (found
);
483 if (!NILP (Vinvocation_directory
)
484 && NILP (Ffile_name_absolute_p (Vinvocation_directory
)))
485 /* Emacs was started with relative path, like ./emacs.
487 Vinvocation_directory
= Fexpand_file_name (Vinvocation_directory
, Qnil
);
489 Vinstallation_directory
= Qnil
;
491 if (!NILP (Vinvocation_directory
))
493 dir
= Vinvocation_directory
;
494 name
= Fexpand_file_name (Vinvocation_name
, dir
);
497 Lisp_Object tem
, lib_src_exists
;
498 Lisp_Object etc_exists
, info_exists
;
500 /* See if dir contains subdirs for use by Emacs.
501 Check for the ones that would exist in a build directory,
502 not including lisp and info. */
503 tem
= Fexpand_file_name (build_string ("lib-src"), dir
);
504 lib_src_exists
= Ffile_exists_p (tem
);
507 /* MSDOS installations frequently remove lib-src, but we still
508 must set installation-directory, or else info won't find
509 its files (it uses the value of installation-directory). */
510 tem
= Fexpand_file_name (build_string ("info"), dir
);
511 info_exists
= Ffile_exists_p (tem
);
516 if (!NILP (lib_src_exists
) || !NILP (info_exists
))
518 tem
= Fexpand_file_name (build_string ("etc"), dir
);
519 etc_exists
= Ffile_exists_p (tem
);
520 if (!NILP (etc_exists
))
522 Vinstallation_directory
523 = Ffile_name_as_directory (dir
);
528 /* See if dir's parent contains those subdirs. */
529 tem
= Fexpand_file_name (build_string ("../lib-src"), dir
);
530 lib_src_exists
= Ffile_exists_p (tem
);
534 /* See the MSDOS commentary above. */
535 tem
= Fexpand_file_name (build_string ("../info"), dir
);
536 info_exists
= Ffile_exists_p (tem
);
541 if (!NILP (lib_src_exists
) || !NILP (info_exists
))
543 tem
= Fexpand_file_name (build_string ("../etc"), dir
);
544 etc_exists
= Ffile_exists_p (tem
);
545 if (!NILP (etc_exists
))
547 tem
= Fexpand_file_name (build_string (".."), dir
);
548 Vinstallation_directory
549 = Ffile_name_as_directory (tem
);
554 /* If the Emacs executable is actually a link,
555 next try the dir that the link points into. */
556 tem
= Ffile_symlink_p (name
);
559 name
= Fexpand_file_name (tem
, dir
);
560 dir
= Ffile_name_directory (name
);
567 Vcommand_line_args
= Qnil
;
569 for (i
= argc
- 1; i
>= 0; i
--)
571 if (i
== 0 || i
> skip_args
)
572 /* For the moment, we keep arguments as is in unibyte strings.
573 They are decoded in the function command-line after we know
574 locale-coding-system. */
576 = Fcons (make_unibyte_string (argv
[i
], strlen (argv
[i
])),
580 unbind_to (count
, Qnil
);
583 DEFUN ("invocation-name", Finvocation_name
, Sinvocation_name
, 0, 0, 0,
584 doc
: /* Return the program name that was used to run Emacs.
585 Any directory names are omitted. */)
588 return Fcopy_sequence (Vinvocation_name
);
591 DEFUN ("invocation-directory", Finvocation_directory
, Sinvocation_directory
,
593 doc
: /* Return the directory name in which the Emacs executable was located. */)
596 return Fcopy_sequence (Vinvocation_directory
);
601 #ifdef LINK_CRTL_SHARE
602 #ifdef SHARABLE_LIB_BUG
603 extern noshare
char **environ
;
604 #endif /* SHARABLE_LIB_BUG */
605 #endif /* LINK_CRTL_SHARE */
609 /* A valid but unlikely value for the TZ environment value.
610 It is OK (though a bit slower) if the user actually chooses this value. */
611 static char dump_tz
[] = "UtC0";
614 #ifndef ORDINARY_LINK
615 /* We don't include crtbegin.o and crtend.o in the link,
616 so these functions and variables might be missed.
617 Provide dummy definitions to avoid error.
618 (We don't have any real constructors or destructors.) */
620 #ifndef GCC_CTORS_IN_LIBC
621 void __do_global_ctors ()
623 void __do_global_ctors_aux ()
625 void __do_global_dtors ()
627 /* GNU/Linux has a bug in its library; avoid an error. */
629 char * __CTOR_LIST__
[2] = { (char *) (-1), 0 };
631 char * __DTOR_LIST__
[2] = { (char *) (-1), 0 };
632 #endif /* GCC_CTORS_IN_LIBC */
635 #endif /* __GNUC__ */
636 #endif /* ORDINARY_LINK */
638 /* Test whether the next argument in ARGV matches SSTR or a prefix of
639 LSTR (at least MINLEN characters). If so, then if VALPTR is non-null
640 (the argument is supposed to have a value) store in *VALPTR either
641 the next argument or the portion of this one after the equal sign.
642 ARGV is read starting at position *SKIPPTR; this index is advanced
643 by the number of arguments used.
645 Too bad we can't just use getopt for all of this, but we don't have
646 enough information to do it right. */
649 argmatch (argv
, argc
, sstr
, lstr
, minlen
, valptr
, skipptr
)
662 /* Don't access argv[argc]; give up in advance. */
663 if (argc
<= *skipptr
+ 1)
666 arg
= argv
[*skipptr
+1];
669 if (strcmp (arg
, sstr
) == 0)
673 *valptr
= argv
[*skipptr
+2];
680 arglen
= (valptr
!= NULL
&& (p
= index (arg
, '=')) != NULL
681 ? p
- arg
: strlen (arg
));
682 if (lstr
== 0 || arglen
< minlen
|| strncmp (arg
, lstr
, arglen
) != 0)
684 else if (valptr
== NULL
)
695 else if (argv
[*skipptr
+2] != NULL
)
697 *valptr
= argv
[*skipptr
+2];
707 #ifdef DOUG_LEA_MALLOC
709 /* malloc can be invoked even before main (e.g. by the dynamic
710 linker), so the dumped malloc state must be restored as early as
711 possible using this special hook. */
714 malloc_initialize_hook ()
717 extern char **environ
;
722 if (!malloc_using_checking
)
723 /* Work around a bug in glibc's malloc. MALLOC_CHECK_ must be
724 ignored if the heap to be restored was constructed without
725 malloc checking. Can't use unsetenv, since that calls malloc. */
729 for (p
= environ
; p
&& *p
; p
++)
730 if (strncmp (*p
, "MALLOC_CHECK_=", 14) == 0)
739 malloc_set_state (malloc_state_ptr
);
740 #ifndef XMALLOC_OVERRUN_CHECK
741 free (malloc_state_ptr
);
746 if (my_heap_start
== 0)
747 my_heap_start
= sbrk (0);
748 malloc_using_checking
= getenv ("MALLOC_CHECK_") != NULL
;
752 void (*__malloc_initialize_hook
) () = malloc_initialize_hook
;
754 #endif /* DOUG_LEA_MALLOC */
757 #define REPORT_EMACS_BUG_ADDRESS "bug-gnu-emacs@gnu.org"
758 #define REPORT_EMACS_BUG_PRETEST_ADDRESS "emacs-pretest-bug@gnu.org"
760 /* This function is used to determine an address to which bug report should
764 bug_reporting_address ()
770 temp
= Fsymbol_value (intern ("emacs-version"));
772 /* When `emacs-version' is invalid, use normal address. */
774 return REPORT_EMACS_BUG_ADDRESS
;
776 string
= SDATA (temp
);
778 /* Count dots in `emacs-version'. */
786 /* When `emacs-version' has at least three dots, it is development or
787 pretest version of Emacs. */
788 return count
>= 3 ? REPORT_EMACS_BUG_PRETEST_ADDRESS
: REPORT_EMACS_BUG_ADDRESS
;
791 #ifdef USE_FONT_BACKEND
792 extern int enable_font_backend
;
793 #endif /* USE_FONT_BACKEND */
811 char stack_bottom_variable
;
812 int do_initial_setlocale
;
817 #ifdef HAVE_SETRLIMIT
824 extern Lisp_Object
*stack_base
;
830 extern char my_endbss
[];
831 extern char *my_endbss_static
;
833 if (my_heap_start
== 0)
834 my_heap_start
= sbrk (0);
836 heap_bss_diff
= (char *)my_heap_start
- max (my_endbss
, my_endbss_static
);
839 #ifdef LINUX_SBRK_BUG
843 #ifdef RUN_TIME_REMAP
845 run_time_remap (argv
[0]);
850 unexec_init_emacs_zone ();
853 sort_args (argc
, argv
);
855 while (argv
[argc
]) argc
++;
857 if (argmatch (argv
, argc
, "-version", "--version", 3, NULL
, &skip_args
)
858 /* We don't know the version number unless this is a dumped Emacs.
859 So ignore --version otherwise. */
862 Lisp_Object tem
, tem2
;
863 tem
= Fsymbol_value (intern ("emacs-version"));
864 tem2
= Fsymbol_value (intern ("emacs-copyright"));
867 fprintf (stderr
, "Invalid value of `emacs-version'\n");
872 fprintf (stderr
, "Invalid value of `emacs-copyright'\n");
877 printf ("GNU Emacs %s\n", SDATA (tem
));
878 printf ("%s\n", SDATA(tem2
));
879 printf ("GNU Emacs comes with ABSOLUTELY NO WARRANTY.\n");
880 printf ("You may redistribute copies of Emacs\n");
881 printf ("under the terms of the GNU General Public License.\n");
882 printf ("For more information about these matters, ");
883 printf ("see the file named COPYING.\n");
888 #ifdef HAVE_PERSONALITY_LINUX32
889 /* See if there is a gap between the end of BSS and the heap.
890 In that case, set personality and exec ourself again. */
892 && (strcmp (argv
[argc
-1], "dump") == 0
893 || strcmp (argv
[argc
-1], "bootstrap") == 0)
894 && heap_bss_diff
> MAX_HEAP_BSS_DIFF
)
896 if (! getenv ("EMACS_HEAP_EXEC"))
898 /* Set this so we only do this once. */
899 putenv("EMACS_HEAP_EXEC=true");
901 /* A flag to turn off address randomization which is introduced
902 in linux kernel shipped with fedora core 4 */
903 #define ADD_NO_RANDOMIZE 0x0040000
904 personality (PER_LINUX32
| ADD_NO_RANDOMIZE
);
905 #undef ADD_NO_RANDOMIZE
907 execvp (argv
[0], argv
);
909 /* If the exec fails, try to dump anyway. */
913 #endif /* HAVE_PERSONALITY_LINUX32 */
916 /* Map in shared memory, if we are using that. */
918 if (argmatch (argv
, argc
, "-nl", "--no-shared-memory", 6, NULL
, &skip_args
))
921 /* The shared memory was just restored, which clobbered this. */
927 /* The shared memory was just restored, which clobbered this. */
934 extern int malloc_cookie
;
935 /* This helps out unexnext.c. */
937 if (malloc_jumpstart (malloc_cookie
) != 0)
938 printf ("malloc jumpstart failed!\n");
943 /* Skip process serial number passed in the form -psn_x_y as
944 command-line argument. The WindowServer adds this option when
945 Emacs is invoked from the Finder or by the `open' command. In
946 these cases, the working directory becomes `/', so we change it
947 to the user's home directory. */
948 if (argc
> skip_args
+ 1 && strncmp (argv
[skip_args
+1], "-psn_", 5) == 0)
950 chdir (getenv ("HOME"));
956 /* If -map specified, map the data file in. */
959 if (argmatch (argv
, argc
, "-map", "--map-data", 3, &file
, &skip_args
))
963 #ifdef LINK_CRTL_SHARE
964 #ifdef SHARABLE_LIB_BUG
965 /* Bletcherous shared libraries! */
967 stdin
= fdopen (0, "r");
969 stdout
= fdopen (1, "w");
971 stderr
= fdopen (2, "w");
974 #endif /* SHARABLE_LIB_BUG */
975 #endif /* LINK_CRTL_SHARE */
978 #if defined (HAVE_SETRLIMIT) && defined (RLIMIT_STACK)
979 /* Extend the stack space available.
980 Don't do that if dumping, since some systems (e.g. DJGPP)
981 might define a smaller stack limit at that time. */
984 && (!noninteractive
|| initialized
)
986 && !getrlimit (RLIMIT_STACK
, &rlim
))
989 extern size_t re_max_failures
;
990 /* Approximate the amount regex.c needs per unit of re_max_failures. */
991 int ratio
= 20 * sizeof (char *);
992 /* Then add 33% to cover the size of the smaller stacks that regex.c
993 successively allocates and discards, on its way to the maximum. */
995 /* Add in some extra to cover
996 what we're likely to use for other reasons. */
997 newlim
= re_max_failures
* ratio
+ 200000;
999 /* NetBSD (at least NetBSD 1.2G and former) has a bug in its
1000 stack allocation routine for new process that the allocation
1001 fails if stack limit is not on page boundary. So, round up the
1002 new limit to page boundary. */
1003 newlim
= (newlim
+ getpagesize () - 1) / getpagesize () * getpagesize();
1005 if (newlim
> rlim
.rlim_max
)
1007 newlim
= rlim
.rlim_max
;
1008 /* Don't let regex.c overflow the stack we have. */
1009 re_max_failures
= (newlim
- 200000) / ratio
;
1011 if (rlim
.rlim_cur
< newlim
)
1012 rlim
.rlim_cur
= newlim
;
1014 setrlimit (RLIMIT_STACK
, &rlim
);
1016 #endif /* HAVE_SETRLIMIT and RLIMIT_STACK */
1018 /* Record (approximately) where the stack begins. */
1019 stack_bottom
= &stack_bottom_variable
;
1021 #ifdef USG_SHARED_LIBRARIES
1023 brk ((void *)bss_end
);
1028 #ifndef SYSTEM_MALLOC
1029 /* Arrange to get warning messages as memory fills up. */
1030 memory_warnings (0, malloc_warning
);
1032 /* Call malloc at least once, to run the initial __malloc_hook.
1033 Also call realloc and free for consistency. */
1034 free (realloc (malloc (4), 4));
1037 /* Arrange to disable interrupt input inside malloc etc. */
1038 uninterrupt_malloc ();
1039 # endif /* not SYNC_INPUT */
1040 #endif /* not SYSTEM_MALLOC */
1042 #ifdef HAVE_GTK_AND_PTHREAD
1043 main_thread
= pthread_self ();
1044 #endif /* HAVE_GTK_AND_PTHREAD */
1046 #if defined (MSDOS) || defined (WINDOWSNT)
1047 /* We do all file input/output as binary files. When we need to translate
1048 newlines, we do that manually. */
1050 #endif /* MSDOS || WINDOWSNT */
1054 if (!isatty (fileno (stdin
)))
1055 setmode (fileno (stdin
), O_BINARY
);
1056 if (!isatty (fileno (stdout
)))
1059 setmode (fileno (stdout
), O_BINARY
);
1061 #else /* not __DJGPP__ >= 2 */
1062 (stdin
)->_flag
&= ~_IOTEXT
;
1063 (stdout
)->_flag
&= ~_IOTEXT
;
1064 (stderr
)->_flag
&= ~_IOTEXT
;
1065 #endif /* not __DJGPP__ >= 2 */
1068 #ifdef SET_EMACS_PRIORITY
1070 nice (emacs_priority
);
1072 #endif /* SET_EMACS_PRIORITY */
1074 /* Skip initial setlocale if LC_ALL is "C", as it's not needed in that case.
1075 The build procedure uses this while dumping, to ensure that the
1076 dumped Emacs does not have its system locale tables initialized,
1077 as that might cause screwups when the dumped Emacs starts up. */
1079 char *lc_all
= getenv ("LC_ALL");
1080 do_initial_setlocale
= ! lc_all
|| strcmp (lc_all
, "C");
1083 /* Set locale now, so that initial error messages are localized properly.
1084 fixup_locale must wait until later, since it builds strings. */
1085 if (do_initial_setlocale
)
1086 setlocale (LC_ALL
, "");
1088 #ifdef EXTRA_INITIALIZE
1092 inhibit_window_system
= 0;
1094 /* Handle the -t switch, which specifies filename to use as terminal. */
1098 if (argmatch (argv
, argc
, "-t", "--terminal", 4, &term
, &skip_args
))
1103 result
= emacs_open (term
, O_RDWR
, 0);
1106 char *errstring
= strerror (errno
);
1107 fprintf (stderr
, "%s: %s: %s\n", argv
[0], term
, errstring
);
1113 fprintf (stderr
, "%s: %s: not a tty\n", argv
[0], term
);
1116 fprintf (stderr
, "Using %s\n", term
);
1117 #ifdef HAVE_WINDOW_SYSTEM
1118 inhibit_window_system
= 1; /* -t => -nw */
1125 /* Command line option --no-windows is deprecated and thus not mentioned
1126 in the manual and usage informations. */
1127 if (argmatch (argv
, argc
, "-nw", "--no-window-system", 6, NULL
, &skip_args
)
1128 || argmatch (argv
, argc
, "-nw", "--no-windows", 6, NULL
, &skip_args
))
1129 inhibit_window_system
= 1;
1131 /* Handle the -batch switch, which means don't do interactive display. */
1133 if (argmatch (argv
, argc
, "-batch", "--batch", 5, NULL
, &skip_args
))
1136 Vundo_outer_limit
= Qnil
;
1138 if (argmatch (argv
, argc
, "-script", "--script", 3, &junk
, &skip_args
))
1140 noninteractive
= 1; /* Set batch mode. */
1141 /* Convert --script to --scriptload, un-skip it, and sort again
1142 so that it will be handled in proper sequence. */
1143 argv
[skip_args
- 1] = "-scriptload";
1145 sort_args (argc
, argv
);
1148 /* Handle the --help option, which gives a usage message. */
1149 if (argmatch (argv
, argc
, "-help", "--help", 3, NULL
, &skip_args
))
1151 printf (USAGE1
, argv
[0], USAGE2
);
1153 printf (USAGE4
, bug_reporting_address ());
1157 if (! noninteractive
)
1162 inherited_pgroup
= EMACS_GETPGRP (0);
1163 setpgrp (0, getpid ());
1166 #if defined (USG5) && defined (INTERRUPT_INPUT)
1170 #if defined (HAVE_GTK_AND_PTHREAD) && !defined (SYSTEM_MALLOC) && !defined (DOUG_LEA_MALLOC)
1172 extern void malloc_enable_thread
P_ ((void));
1174 malloc_enable_thread ();
1181 /* Don't catch SIGHUP if dumping. */
1188 sigblock (sigmask (SIGHUP
));
1189 /* In --batch mode, don't catch SIGHUP if already ignored.
1190 That makes nohup work. */
1191 if (! noninteractive
1192 || signal (SIGHUP
, SIG_IGN
) != SIG_IGN
)
1193 signal (SIGHUP
, fatal_error_signal
);
1194 sigunblock (sigmask (SIGHUP
));
1199 ! noninteractive
|| initialized
1205 /* Don't catch these signals in batch mode if dumping.
1206 On some machines, this sets static data that would make
1207 signal fail to work right when the dumped Emacs is run. */
1208 signal (SIGQUIT
, fatal_error_signal
);
1209 signal (SIGILL
, fatal_error_signal
);
1210 signal (SIGTRAP
, fatal_error_signal
);
1212 add_user_signal (SIGUSR1
, "sigusr1");
1215 add_user_signal (SIGUSR2
, "sigusr2");
1218 signal (SIGABRT
, fatal_error_signal
);
1221 signal (SIGHWE
, fatal_error_signal
);
1224 signal (SIGPRE
, fatal_error_signal
);
1227 signal (SIGORE
, fatal_error_signal
);
1230 signal (SIGUME
, fatal_error_signal
);
1233 signal (SIGDLK
, fatal_error_signal
);
1236 signal (SIGCPULIM
, fatal_error_signal
);
1239 /* This is missing on some systems - OS/2, for example. */
1240 signal (SIGIOT
, fatal_error_signal
);
1243 signal (SIGEMT
, fatal_error_signal
);
1245 signal (SIGFPE
, fatal_error_signal
);
1247 signal (SIGBUS
, fatal_error_signal
);
1249 signal (SIGSEGV
, fatal_error_signal
);
1251 signal (SIGSYS
, fatal_error_signal
);
1253 signal (SIGTERM
, fatal_error_signal
);
1255 signal (SIGXCPU
, fatal_error_signal
);
1258 signal (SIGXFSZ
, fatal_error_signal
);
1259 #endif /* SIGXFSZ */
1262 /* This just means available memory is getting low. */
1263 signal (SIGDANGER
, memory_warning_signal
);
1267 /* 20 is SIGCHLD, 21 is SIGTTIN, 22 is SIGTTOU. */
1268 signal (SIGXCPU
, fatal_error_signal
);
1270 signal (SIGIOINT
, fatal_error_signal
);
1272 signal (SIGGRANT
, fatal_error_signal
);
1273 signal (SIGRETRACT
, fatal_error_signal
);
1274 signal (SIGSOUND
, fatal_error_signal
);
1275 signal (SIGMSG
, fatal_error_signal
);
1279 noninteractive1
= noninteractive
;
1281 /* Perform basic initializations (not merely interning symbols). */
1288 init_character_once ();
1289 init_charset_once ();
1290 init_coding_once ();
1291 init_syntax_once (); /* Create standard syntax table. */
1292 init_category_once (); /* Create standard category table. */
1293 /* Must be done before init_buffer. */
1294 init_casetab_once ();
1295 init_buffer_once (); /* Create buffer table and some buffers. */
1296 init_minibuf_once (); /* Create list of minibuffers. */
1297 /* Must precede init_window_once. */
1299 /* Call syms_of_xfaces before init_window_once because that
1300 function creates Vterminal_frame. Termcap frames now use
1301 faces, and the face implementation uses some symbols as
1304 /* XXX syms_of_keyboard uses some symbols in keymap.c. It would
1305 be better to arrange things not to have this dependency. */
1307 /* Call syms_of_keyboard before init_window_once because
1308 keyboard sets up symbols that include some face names that
1309 the X support will want to use. This can happen when
1310 CANNOT_DUMP is defined. */
1311 syms_of_keyboard ();
1314 /* init_window_once calls make_terminal_frame which on Mac OS
1315 creates a full-fledge output_mac type frame. This does not
1316 work correctly before syms_of_textprop, syms_of_macfns,
1317 syms_of_ccl, syms_of_fontset, syms_of_xterm, syms_of_search,
1318 syms_of_frame, mac_term_init, and init_keyboard have already
1320 syms_of_textprop ();
1326 syms_of_macselect ();
1331 mac_term_init (build_string ("Mac"), NULL
, NULL
);
1334 /* Called before syms_of_fileio, because it sets up Qerror_condition. */
1337 /* Before syms_of_coding to initialize Vgc_cons_threshold. */
1339 /* Before syms_of_coding because it initializes Qcharsetp. */
1341 /* Before init_window_once, because it sets up the
1342 Vcoding_system_hash_table. */
1343 syms_of_coding (); /* This should be after syms_of_fileio. */
1345 init_window_once (); /* Init the window system. */
1346 init_fileio_once (); /* Must precede any path manipulation. */
1347 #ifdef HAVE_WINDOW_SYSTEM
1348 init_fringe_once (); /* Swap bitmaps if necessary. */
1349 #endif /* HAVE_WINDOW_SYSTEM */
1354 if (do_initial_setlocale
)
1357 Vsystem_messages_locale
= Vprevious_system_messages_locale
;
1358 Vsystem_time_locale
= Vprevious_system_time_locale
;
1363 #ifdef CLASH_DETECTION
1369 running_asynch_code
= 0;
1371 /* Handle --unibyte and the EMACS_UNIBYTE envvar,
1372 but not while dumping. */
1375 int inhibit_unibyte
= 0;
1377 /* --multibyte overrides EMACS_UNIBYTE. */
1378 if (argmatch (argv
, argc
, "-no-unibyte", "--no-unibyte", 4, NULL
, &skip_args
)
1379 || argmatch (argv
, argc
, "-multibyte", "--multibyte", 4, NULL
, &skip_args
)
1380 /* Ignore EMACS_UNIBYTE before dumping. */
1381 || (!initialized
&& noninteractive
))
1382 inhibit_unibyte
= 1;
1384 /* --unibyte requests that we set up to do everything with single-byte
1385 buffers and strings. We need to handle this before calling
1386 init_lread, init_editfns and other places that generate Lisp strings
1387 from text in the environment. */
1388 /* Actually this shouldn't be needed as of 20.4 in a generally
1389 unibyte environment. As handa says, environment values
1390 aren't now decoded; also existing buffers are now made
1391 unibyte during startup if .emacs sets unibyte. Tested with
1392 8-bit data in environment variables and /etc/passwd, setting
1393 unibyte and Latin-1 in .emacs. -- Dave Love */
1394 if (argmatch (argv
, argc
, "-unibyte", "--unibyte", 4, NULL
, &skip_args
)
1395 || argmatch (argv
, argc
, "-no-multibyte", "--no-multibyte", 4, NULL
, &skip_args
)
1396 || (getenv ("EMACS_UNIBYTE") && !inhibit_unibyte
))
1398 Lisp_Object old_log_max
;
1399 Lisp_Object symbol
, tail
;
1401 symbol
= intern ("default-enable-multibyte-characters");
1402 Fset (symbol
, Qnil
);
1406 /* Erase pre-dump messages in *Messages* now so no abort. */
1407 old_log_max
= Vmessage_log_max
;
1408 XSETFASTINT (Vmessage_log_max
, 0);
1409 message_dolog ("", 0, 1, 0);
1410 Vmessage_log_max
= old_log_max
;
1413 for (tail
= Vbuffer_alist
; CONSP (tail
);
1418 buffer
= Fcdr (XCAR (tail
));
1419 /* Make a multibyte buffer unibyte. */
1420 if (BUF_Z_BYTE (XBUFFER (buffer
)) > BUF_Z (XBUFFER (buffer
)))
1422 struct buffer
*current
= current_buffer
;
1424 set_buffer_temp (XBUFFER (buffer
));
1425 Fset_buffer_multibyte (Qnil
);
1426 set_buffer_temp (current
);
1433 = argmatch (argv
, argc
, "-nl", "--no-loadup", 6, NULL
, &skip_args
);
1435 #ifdef USE_FONT_BACKEND
1436 enable_font_backend
= 1;
1437 if (argmatch (argv
, argc
, "-enable-font-backend", "--enable-font-backend",
1438 4, NULL
, &skip_args
))
1439 enable_font_backend
= 1;
1440 else if (argmatch (argv
, argc
,
1441 "-disable-font-backend", "--disable-font-backend",
1442 4, NULL
, &skip_args
))
1443 enable_font_backend
= 0;
1444 #endif /* USE_FONT_BACKEND */
1446 #ifdef HAVE_X_WINDOWS
1447 /* Stupid kludge to catch command-line display spec. We can't
1448 handle this argument entirely in window system dependent code
1449 because we don't even know which window system dependent code
1450 to run until we've recognized this argument. */
1452 char *displayname
= 0;
1453 int count_before
= skip_args
;
1455 /* Skip any number of -d options, but only use the last one. */
1458 int count_before_this
= skip_args
;
1460 if (argmatch (argv
, argc
, "-d", "--display", 3, &displayname
, &skip_args
))
1462 else if (argmatch (argv
, argc
, "-display", 0, 3, &displayname
, &skip_args
))
1467 count_before
= count_before_this
;
1470 /* If we have the form --display=NAME,
1471 convert it into -d name.
1472 This requires inserting a new element into argv. */
1473 if (displayname
!= 0 && skip_args
- count_before
== 1)
1475 char **new = (char **) xmalloc (sizeof (char *) * (argc
+ 2));
1478 for (j
= 0; j
< count_before
+ 1; j
++)
1480 new[count_before
+ 1] = "-d";
1481 new[count_before
+ 2] = displayname
;
1482 for (j
= count_before
+ 2; j
<argc
; j
++)
1483 new[j
+ 1] = argv
[j
];
1487 /* Change --display to -d, when its arg is separate. */
1488 else if (displayname
!= 0 && skip_args
> count_before
1489 && argv
[count_before
+ 1][1] == '-')
1490 argv
[count_before
+ 1] = "-d";
1492 /* Don't actually discard this arg. */
1493 skip_args
= count_before
;
1497 /* argmatch must not be used after here,
1498 except when bulding temacs
1499 because the -d argument has not been skipped in skip_args. */
1502 /* Call early 'cause init_environment needs it. */
1504 /* Set defaults for several environment variables. */
1506 init_environment (argc
, argv
, skip_args
);
1513 /* Initialize environment from registry settings. */
1514 init_environment (argv
);
1515 init_ntproc (); /* must precede init_editfns. */
1518 #if defined (MAC_OSX) && defined (HAVE_CARBON)
1520 init_mac_osx_environment ();
1523 /* egetenv is a pretty low-level facility, which may get called in
1524 many circumstances; it seems flimsy to put off initializing it
1525 until calling init_callproc. */
1526 set_initial_environment ();
1527 /* AIX crashes are reported in system versions 3.2.3 and 3.2.4
1528 if this is not done. Do it after set_global_environment so that we
1529 don't pollute Vglobal_environment. */
1530 /* Setting LANG here will defeat the startup locale processing... */
1535 init_buffer (); /* Init default directory of main buffer. */
1537 init_callproc_1 (); /* Must precede init_cmdargs and init_sys_modes. */
1538 init_cmdargs (argc
, argv
, skip_args
); /* Must precede init_lread. */
1542 /* Erase any pre-dump messages in the message log, to avoid confusion. */
1543 Lisp_Object old_log_max
;
1544 old_log_max
= Vmessage_log_max
;
1545 XSETFASTINT (Vmessage_log_max
, 0);
1546 message_dolog ("", 0, 1, 0);
1547 Vmessage_log_max
= old_log_max
;
1550 init_callproc (); /* Must follow init_cmdargs but not init_sys_modes. */
1553 /* Intern the names of all standard functions and variables;
1554 define standard keys. */
1558 /* The basic levels of Lisp must come first. */
1559 /* And data must come first of all
1560 for the sake of symbols like error-message. */
1562 /* Called before init_window_once for Mac OS Classic. */
1570 syms_of_floatfns ();
1573 syms_of_bytecode ();
1575 syms_of_casefiddle ();
1577 syms_of_callproc ();
1578 syms_of_category ();
1580 /* Called before init_window_once for Mac OS Classic. */
1583 syms_of_character ();
1585 #ifndef NO_DIR_LIBRARY
1587 #endif /* not NO_DIR_LIBRARY */
1592 #ifdef CLASH_DETECTION
1593 syms_of_filelock ();
1594 #endif /* CLASH_DETECTION */
1597 /* syms_of_keymap (); */
1603 /* Called before init_window_once for Mac OS Classic. */
1608 syms_of_terminal ();
1615 /* Called before init_window_once for Mac OS Classic. */
1616 syms_of_textprop ();
1618 syms_of_composite ();
1624 #endif /* WINDOWSNT */
1627 #ifdef HAVE_WINDOW_SYSTEM
1631 #endif /* HAVE_WINDOW_SYSTEM */
1632 #ifdef HAVE_X_WINDOWS
1642 #endif /* HAVE_X_WINDOWS */
1646 /* Called before init_window_once for Mac OS Classic. */
1654 syms_of_w32select ();
1657 #endif /* HAVE_NTGUI */
1659 #if defined (MAC_OSX) && defined (HAVE_CARBON)
1663 syms_of_macselect ();
1665 #endif /* MAC_OSX && HAVE_CARBON */
1668 syms_of_dbusbind ();
1669 #endif /* HAVE_DBUS */
1679 keys_of_casefiddle ();
1682 keys_of_keyboard ();
1689 /* Initialization that must be done even if the global variable
1690 initialized is non zero. */
1692 globals_of_w32fns ();
1693 globals_of_w32menu ();
1694 globals_of_w32select ();
1695 #endif /* HAVE_NTGUI */
1700 init_editfns (); /* init_process uses Voperating_system_release. */
1701 init_process (); /* init_display uses add_keyboard_wait_descriptor. */
1703 /* Called before init_window_once for Mac OS Classic. */
1704 init_keyboard (); /* This too must precede init_sys_modes. */
1707 init_vmsproc (); /* And this too. */
1709 if (!noninteractive
)
1712 init_vms_input ();/* init_display calls get_tty_size, that needs this. */
1714 init_display (); /* Determine terminal type. Calls init_sys_modes. */
1718 #ifdef HAVE_WINDOW_SYSTEM
1721 #endif /* HAVE_WINDOW_SYSTEM */
1735 /* Handle -l loadup, args passed by Makefile. */
1736 if (argmatch (argv
, argc
, "-l", "--load", 3, &file
, &skip_args
))
1737 Vtop_level
= Fcons (intern ("load"),
1738 Fcons (build_string (file
), Qnil
));
1739 /* Unless next switch is -nl, load "loadup.el" first thing. */
1741 Vtop_level
= Fcons (intern ("load"),
1742 Fcons (build_string ("loadup.el"), Qnil
));
1749 /* If the execution TZ happens to be the same as the dump TZ,
1750 change it to some other value and then change it back,
1751 to force the underlying implementation to reload the TZ info.
1752 This is needed on implementations that load TZ info from files,
1753 since the TZ file contents may differ between dump and execution. */
1754 char *tz
= getenv ("TZ");
1755 if (tz
&& !strcmp (tz
, dump_tz
))
1765 /* Set up for profiling. This is known to work on FreeBSD,
1766 GNU/Linux and MinGW. It might work on some other systems too.
1767 Give it a try and tell us if it works on your system. To compile
1768 for profiling, add -pg to the switches your platform uses in
1769 CFLAGS and LDFLAGS. For example:
1770 `make CFLAGS="-pg -g -O -DPROFILING=1" LDFLAGS="-pg -g"'. */
1771 #if defined (__FreeBSD__) || defined (GNU_LINUX) || defined(__MINGW32__)
1775 extern void _mcleanup ();
1777 extern unsigned char etext
asm ("etext");
1781 extern void safe_bcopy ();
1782 extern void dump_opcode_frequencies ();
1785 /* This uses safe_bcopy because that function comes first in the
1786 Emacs executable. It might be better to use something that
1787 gives the start of the text segment, but start_of_text is not
1788 defined on all systems now. */
1789 monstartup (safe_bcopy
, &etext
);
1798 #ifdef LOCALTIME_CACHE
1799 /* Some versions of localtime have a bug. They cache the value of the time
1800 zone rather than looking it up every time. Since localtime() is
1801 called to bolt the undumping time into the undumped emacs, this
1802 results in localtime ignoring the TZ environment variable.
1803 This flushes the new TZ value into localtime. */
1805 #endif /* defined (LOCALTIME_CACHE) */
1807 /* Enter editor command loop. This never returns. */
1813 /* Sort the args so we can find the most important ones
1814 at the beginning of argv. */
1816 /* First, here's a table of all the standard options. */
1818 struct standard_args
1826 struct standard_args standard_args
[] =
1828 { "-version", "--version", 150, 0 },
1830 { "-nl", "--no-shared-memory", 140, 0 },
1833 { "-map", "--map-data", 130, 0 },
1835 { "-t", "--terminal", 120, 1 },
1836 { "-nw", "--no-window-system", 110, 0 },
1837 { "-nw", "--no-windows", 110, 0 },
1838 { "-batch", "--batch", 100, 0 },
1839 { "-script", "--script", 100, 1 },
1840 { "-help", "--help", 90, 0 },
1841 { "-no-unibyte", "--no-unibyte", 83, 0 },
1842 { "-multibyte", "--multibyte", 82, 0 },
1843 { "-unibyte", "--unibyte", 81, 0 },
1844 { "-no-multibyte", "--no-multibyte", 80, 0 },
1845 { "-nl", "--no-loadup", 70, 0 },
1846 { "-enable-font-backend", "--enable-font-backend", 65, 0 },
1847 { "-disable-font-backend", "--disable-font-backend", 65, 0 },
1848 /* -d must come last before the options handled in startup.el. */
1849 { "-d", "--display", 60, 1 },
1850 { "-display", 0, 60, 1 },
1851 /* Now for the options handled in startup.el. */
1852 { "-Q", "--quick", 55, 0 },
1853 { "-quick", 0, 55, 0 },
1854 { "-q", "--no-init-file", 50, 0 },
1855 { "-no-init-file", 0, 50, 0 },
1856 { "-no-site-file", "--no-site-file", 40, 0 },
1857 { "-u", "--user", 30, 1 },
1858 { "-user", 0, 30, 1 },
1859 { "-debug-init", "--debug-init", 20, 0 },
1860 { "-nbi", "--no-bitmap-icon", 15, 0 },
1861 { "-iconic", "--iconic", 15, 0 },
1862 { "-D", "--basic-display", 12, 0},
1863 { "-basic-display", 0, 12, 0},
1864 { "-bg", "--background-color", 10, 1 },
1865 { "-background", 0, 10, 1 },
1866 { "-fg", "--foreground-color", 10, 1 },
1867 { "-foreground", 0, 10, 1 },
1868 { "-bd", "--border-color", 10, 1 },
1869 { "-bw", "--border-width", 10, 1 },
1870 { "-ib", "--internal-border", 10, 1 },
1871 { "-ms", "--mouse-color", 10, 1 },
1872 { "-cr", "--cursor-color", 10, 1 },
1873 { "-nbc", "--no-blinking-cursor", 10, 0 },
1874 { "-fn", "--font", 10, 1 },
1875 { "-font", 0, 10, 1 },
1876 { "-fs", "--fullscreen", 10, 0 },
1877 { "-fw", "--fullwidth", 10, 0 },
1878 { "-fh", "--fullheight", 10, 0 },
1879 { "-g", "--geometry", 10, 1 },
1880 { "-geometry", 0, 10, 1 },
1881 { "-T", "--title", 10, 1 },
1882 { "-title", 0, 10, 1 },
1883 { "-name", "--name", 10, 1 },
1884 { "-xrm", "--xrm", 10, 1 },
1885 { "-r", "--reverse-video", 5, 0 },
1887 { "-reverse", 0, 5, 0 },
1888 { "-hb", "--horizontal-scroll-bars", 5, 0 },
1889 { "-vb", "--vertical-scroll-bars", 5, 0 },
1890 { "-color", "--color", 5, 0},
1891 { "-no-splash", "--no-splash", 3, 0 },
1892 { "-no-desktop", "--no-desktop", 3, 0 },
1893 /* These have the same priority as ordinary file name args,
1894 so they are not reordered with respect to those. */
1895 { "-L", "--directory", 0, 1 },
1896 { "-directory", 0, 0, 1 },
1897 { "-l", "--load", 0, 1 },
1898 { "-load", 0, 0, 1 },
1899 { "-scriptload", "--scriptload", 0, 1 },
1900 { "-f", "--funcall", 0, 1 },
1901 { "-funcall", 0, 0, 1 },
1902 { "-eval", "--eval", 0, 1 },
1903 { "-execute", "--execute", 0, 1 },
1904 { "-find-file", "--find-file", 0, 1 },
1905 { "-visit", "--visit", 0, 1 },
1906 { "-file", "--file", 0, 1 },
1907 { "-insert", "--insert", 0, 1 },
1908 /* This should be processed after ordinary file name args and the like. */
1909 { "-kill", "--kill", -10, 0 },
1912 /* Reorder the elements of ARGV (assumed to have ARGC elements)
1913 so that the highest priority ones come first.
1914 Do not change the order of elements of equal priority.
1915 If an option takes an argument, keep it and its argument together.
1917 If an option that takes no argument appears more
1918 than once, eliminate all but one copy of it. */
1921 sort_args (argc
, argv
)
1925 char **new = (char **) xmalloc (sizeof (char *) * argc
);
1926 /* For each element of argv,
1927 the corresponding element of options is:
1928 0 for an option that takes no arguments,
1929 1 for an option that takes one argument, etc.
1930 -1 for an ordinary non-option argument. */
1931 int *options
= (int *) xmalloc (sizeof (int) * argc
);
1932 int *priority
= (int *) xmalloc (sizeof (int) * argc
);
1934 int incoming_used
= 1;
1938 /* Categorize all the options,
1939 and figure out which argv elts are option arguments. */
1940 for (from
= 1; from
< argc
; from
++)
1944 if (argv
[from
][0] == '-')
1949 /* If we have found "--", don't consider
1950 any more arguments as options. */
1951 if (argv
[from
][1] == '-' && argv
[from
][2] == 0)
1953 /* Leave the "--", and everything following it, at the end. */
1954 for (; from
< argc
; from
++)
1956 priority
[from
] = -100;
1962 /* Look for a match with a known old-fashioned option. */
1963 for (i
= 0; i
< sizeof (standard_args
) / sizeof (standard_args
[0]); i
++)
1964 if (!strcmp (argv
[from
], standard_args
[i
].name
))
1966 options
[from
] = standard_args
[i
].nargs
;
1967 priority
[from
] = standard_args
[i
].priority
;
1968 if (from
+ standard_args
[i
].nargs
>= argc
)
1969 fatal ("Option `%s' requires an argument\n", argv
[from
]);
1970 from
+= standard_args
[i
].nargs
;
1974 /* Look for a match with a known long option.
1975 MATCH is -1 if no match so far, -2 if two or more matches so far,
1976 >= 0 (the table index of the match) if just one match so far. */
1977 if (argv
[from
][1] == '-')
1980 thislen
= strlen (argv
[from
]);
1981 equals
= index (argv
[from
], '=');
1983 thislen
= equals
- argv
[from
];
1986 i
< sizeof (standard_args
) / sizeof (standard_args
[0]); i
++)
1987 if (standard_args
[i
].longname
1988 && !strncmp (argv
[from
], standard_args
[i
].longname
,
1997 /* If we found exactly one match, use that. */
2000 options
[from
] = standard_args
[match
].nargs
;
2001 priority
[from
] = standard_args
[match
].priority
;
2002 /* If --OPTION=VALUE syntax is used,
2003 this option uses just one argv element. */
2006 if (from
+ options
[from
] >= argc
)
2007 fatal ("Option `%s' requires an argument\n", argv
[from
]);
2008 from
+= options
[from
];
2015 /* Copy the arguments, in order of decreasing priority, to NEW. */
2017 while (incoming_used
< argc
)
2020 int best_priority
= -9999;
2022 /* Find the highest priority remaining option.
2023 If several have equal priority, take the first of them. */
2024 for (from
= 1; from
< argc
; from
++)
2026 if (argv
[from
] != 0 && priority
[from
] > best_priority
)
2028 best_priority
= priority
[from
];
2031 /* Skip option arguments--they are tied to the options. */
2032 if (options
[from
] > 0)
2033 from
+= options
[from
];
2039 /* Copy the highest priority remaining option, with its args, to NEW.
2040 Unless it is a duplicate of the previous one. */
2041 if (! (options
[best
] == 0
2042 && ! strcmp (new[to
- 1], argv
[best
])))
2044 new[to
++] = argv
[best
];
2045 for (i
= 0; i
< options
[best
]; i
++)
2046 new[to
++] = argv
[best
+ i
+ 1];
2049 incoming_used
+= 1 + (options
[best
] > 0 ? options
[best
] : 0);
2051 /* Clear out this option in ARGV. */
2053 for (i
= 0; i
< options
[best
]; i
++)
2054 argv
[best
+ i
+ 1] = 0;
2057 /* If duplicate options were deleted, fill up extra space with null ptrs. */
2061 bcopy (new, argv
, sizeof (char *) * argc
);
2068 DEFUN ("kill-emacs", Fkill_emacs
, Skill_emacs
, 0, 1, "P",
2069 doc
: /* Exit the Emacs job and kill it.
2070 If ARG is an integer, return ARG as the exit program code.
2071 If ARG is a string, stuff it as keyboard input.
2073 The value of `kill-emacs-hook', if not void,
2074 is a list of functions (of no args),
2075 all of which are called before Emacs is actually killed. */)
2079 struct gcpro gcpro1
;
2086 if (!NILP (Vrun_hooks
) && !noninteractive
)
2087 call1 (Vrun_hooks
, intern ("kill-emacs-hook"));
2091 /* Is it really necessary to do this deassign
2092 when we are going to exit anyway? */
2097 shut_down_emacs (0, 0, STRINGP (arg
) ? arg
: Qnil
);
2099 /* If we have an auto-save list file,
2100 kill it because we are exiting Emacs deliberately (not crashing).
2101 Do it after shut_down_emacs, which does an auto-save. */
2102 if (STRINGP (Vauto_save_list_file_name
))
2103 unlink (SDATA (Vauto_save_list_file_name
));
2105 exit (INTEGERP (arg
) ? XINT (arg
) : EXIT_SUCCESS
);
2111 /* Perform an orderly shutdown of Emacs. Autosave any modified
2112 buffers, kill any child processes, clean up the terminal modes (if
2113 we're in the foreground), and other stuff like that. Don't perform
2114 any redisplay; this may be called when Emacs is shutting down in
2115 the background, or after its X connection has died.
2117 If SIG is a signal number, print a message for it.
2119 This is called by fatal signal handlers, X protocol error handlers,
2123 shut_down_emacs (sig
, no_x
, stuff
)
2127 /* Prevent running of hooks from now on. */
2130 /* Don't update display from now on. */
2131 Vinhibit_redisplay
= Qt
;
2133 /* If we are controlling the terminal, reset terminal modes. */
2134 #ifdef EMACS_HAVE_TTY_PGRP
2136 int pgrp
= EMACS_GETPGRP (0);
2139 if (EMACS_GET_TTY_PGRP (0, &tpgrp
) != -1
2142 reset_all_sys_modes ();
2143 if (sig
&& sig
!= SIGTERM
)
2144 fprintf (stderr
, "Fatal error (%d)", sig
);
2149 reset_all_sys_modes ();
2152 stuff_buffered_input (stuff
);
2155 inhibit_sentinels
= 1;
2157 kill_buffer_processes (Qnil
);
2158 Fdo_auto_save (Qt
, Qnil
);
2160 #ifdef CLASH_DETECTION
2161 unlock_all_files ();
2165 kill_vms_processes ();
2168 #if 0 /* This triggers a bug in XCloseDisplay and is not needed. */
2169 #ifdef HAVE_X_WINDOWS
2170 /* It's not safe to call intern here. Maybe we are crashing. */
2171 if (!noninteractive
&& SYMBOLP (Vinitial_window_system
)
2172 && SCHARS (SYMBOL_NAME (Vinitial_window_system
)) == 1
2173 && SREF (SYMBOL_NAME (Vinitial_window_system
), 0) == 'x'
2175 Fx_close_current_connection ();
2176 #endif /* HAVE_X_WINDOWS */
2180 /* There is a tendency for a SIGIO signal to arrive within exit,
2181 and cause a SIGHUP because the input descriptor is already closed. */
2183 signal (SIGIO
, SIG_IGN
);
2190 /* Do this only if terminating normally, we want glyph matrices
2191 etc. in a core dump. */
2192 if (sig
== 0 || sig
== SIGTERM
)
2194 check_glyph_memory ();
2195 check_message_stack ();
2209 DEFUN ("dump-emacs-data", Fdump_emacs_data
, Sdump_emacs_data
, 1, 1, 0,
2210 doc
: /* Dump current state of Emacs into data file FILENAME.
2211 This function exists on systems that use HAVE_SHM. */)
2213 Lisp_Object filename
;
2215 extern char my_edata
[];
2219 CHECK_STRING (filename
);
2220 filename
= Fexpand_file_name (filename
, Qnil
);
2223 Vpurify_flag
= Qnil
;
2226 /* Tell malloc where start of impure now is. */
2227 /* Also arrange for warnings when nearly out of space. */
2228 #ifndef SYSTEM_MALLOC
2229 memory_warnings (my_edata
, malloc_warning
);
2231 map_out_data (SDATA (filename
));
2238 #else /* not HAVE_SHM */
2240 DEFUN ("dump-emacs", Fdump_emacs
, Sdump_emacs
, 2, 2, 0,
2241 doc
: /* Dump current state of Emacs into executable file FILENAME.
2242 Take symbols from SYMFILE (presumably the file you executed to run Emacs).
2243 This is used in the file `loadup.el' when building Emacs.
2245 You must run Emacs in batch mode in order to dump it. */)
2247 Lisp_Object filename
, symfile
;
2249 extern char my_edata
[];
2252 int count
= SPECPDL_INDEX ();
2256 if (! noninteractive
)
2257 error ("Dumping Emacs works only in batch mode");
2260 if (heap_bss_diff
> MAX_HEAP_BSS_DIFF
)
2262 fprintf (stderr
, "**************************************************\n");
2263 fprintf (stderr
, "Warning: Your system has a gap between BSS and the\n");
2264 fprintf (stderr
, "heap (%lu bytes). This usually means that exec-shield\n",
2266 fprintf (stderr
, "or something similar is in effect. The dump may\n");
2267 fprintf (stderr
, "fail because of this. See the section about\n");
2268 fprintf (stderr
, "exec-shield in etc/PROBLEMS for more information.\n");
2269 fprintf (stderr
, "**************************************************\n");
2271 #endif /* GNU_LINUX */
2273 /* Bind `command-line-processed' to nil before dumping,
2274 so that the dumped Emacs will process its command line
2275 and set up to work with X windows if appropriate. */
2276 symbol
= intern ("command-line-processed");
2277 specbind (symbol
, Qnil
);
2279 CHECK_STRING (filename
);
2280 filename
= Fexpand_file_name (filename
, Qnil
);
2281 if (!NILP (symfile
))
2283 CHECK_STRING (symfile
);
2284 if (SCHARS (symfile
))
2285 symfile
= Fexpand_file_name (symfile
, Qnil
);
2289 Vpurify_flag
= Qnil
;
2292 set_time_zone_rule (dump_tz
);
2293 #ifndef LOCALTIME_CACHE
2294 /* Force a tz reload, since set_time_zone_rule doesn't. */
2301 mapout_data (SDATA (filename
));
2303 /* Tell malloc where start of impure now is. */
2304 /* Also arrange for warnings when nearly out of space. */
2305 #ifndef SYSTEM_MALLOC
2307 /* On Windows, this was done before dumping, and that once suffices.
2308 Meanwhile, my_edata is not valid on Windows. */
2309 memory_warnings (my_edata
, malloc_warning
);
2310 #endif /* not WINDOWSNT */
2312 #if !defined (SYSTEM_MALLOC) && defined (HAVE_GTK_AND_PTHREAD) && !defined SYNC_INPUT
2313 /* Pthread may call malloc before main, and then we will get an endless
2314 loop, because pthread_self (see alloc.c) calls malloc the first time
2315 it is called on some systems. */
2316 reset_malloc_hooks ();
2318 #ifdef DOUG_LEA_MALLOC
2319 malloc_state_ptr
= malloc_get_state ();
2322 #ifdef USE_MMAP_FOR_BUFFERS
2325 unexec (SDATA (filename
),
2326 !NILP (symfile
) ? SDATA (symfile
) : 0, my_edata
, 0, 0);
2327 #ifdef USE_MMAP_FOR_BUFFERS
2330 #ifdef DOUG_LEA_MALLOC
2331 free (malloc_state_ptr
);
2333 #endif /* not VMS */
2337 return unbind_to (count
, Qnil
);
2340 #endif /* not HAVE_SHM */
2342 #endif /* not CANNOT_DUMP */
2345 /* Recover from setlocale (LC_ALL, ""). */
2349 /* The Emacs Lisp reader needs LC_NUMERIC to be "C",
2350 so that numbers are read and printed properly for Emacs Lisp. */
2351 setlocale (LC_NUMERIC
, "C");
2354 /* Set system locale CATEGORY, with previous locale *PLOCALE, to
2357 synchronize_locale (category
, plocale
, desired_locale
)
2359 Lisp_Object
*plocale
;
2360 Lisp_Object desired_locale
;
2362 if (! EQ (*plocale
, desired_locale
))
2364 *plocale
= desired_locale
;
2365 setlocale (category
, (STRINGP (desired_locale
)
2366 ? (char *) SDATA (desired_locale
)
2371 /* Set system time locale to match Vsystem_time_locale, if possible. */
2373 synchronize_system_time_locale ()
2375 synchronize_locale (LC_TIME
, &Vprevious_system_time_locale
,
2376 Vsystem_time_locale
);
2379 /* Set system messages locale to match Vsystem_messages_locale, if
2382 synchronize_system_messages_locale ()
2385 synchronize_locale (LC_MESSAGES
, &Vprevious_system_messages_locale
,
2386 Vsystem_messages_locale
);
2389 #endif /* HAVE_SETLOCALE */
2396 decode_env_path (evarname
, defalt
)
2397 char *evarname
, *defalt
;
2399 register char *path
, *p
;
2400 Lisp_Object lpath
, element
, tem
;
2402 /* It's okay to use getenv here, because this function is only used
2403 to initialize variables when Emacs starts up, and isn't called
2406 path
= (char *) getenv (evarname
);
2412 /* Ensure values from the environment use the proper directory separator. */
2415 p
= alloca (strlen (path
) + 1);
2419 if ('/' == DIRECTORY_SEP
)
2420 dostounix_filename (path
);
2422 unixtodos_filename (path
);
2428 p
= index (path
, SEPCHAR
);
2429 if (!p
) p
= path
+ strlen (path
);
2430 element
= (p
- path
? make_string (path
, p
- path
)
2431 : build_string ("."));
2433 /* Add /: to the front of the name
2434 if it would otherwise be treated as magic. */
2435 tem
= Ffind_file_name_handler (element
, Qt
);
2437 /* However, if the handler says "I'm safe",
2438 don't bother adding /:. */
2442 prop
= Fget (tem
, intern ("safe-magic"));
2448 element
= concat2 (build_string ("/:"), element
);
2450 lpath
= Fcons (element
, lpath
);
2456 return Fnreverse (lpath
);
2462 Qfile_name_handler_alist
= intern ("file-name-handler-alist");
2463 staticpro (&Qfile_name_handler_alist
);
2467 defsubr (&Sdump_emacs_data
);
2469 defsubr (&Sdump_emacs
);
2473 defsubr (&Skill_emacs
);
2475 defsubr (&Sinvocation_name
);
2476 defsubr (&Sinvocation_directory
);
2478 DEFVAR_LISP ("command-line-args", &Vcommand_line_args
,
2479 doc
: /* Args passed by shell to Emacs, as a list of strings.
2480 Many arguments are deleted from the list as they are processed. */);
2482 DEFVAR_LISP ("system-type", &Vsystem_type
,
2483 doc
: /* Value is symbol indicating type of operating system you are using.
2485 `gnu/linux' compiled for a GNU/Linux system.
2486 `darwin' compiled for Darwin (GNU-Darwin, Mac OS X, ...).
2487 `macos' compiled for Mac OS 9.
2488 `ms-dos' compiled as an MS-DOS application.
2489 `windows-nt' compiled as a native W32 application.
2490 `cygwin' compiled using the Cygwin library.
2492 `axp-vms' compiled for a (Open)VMS system.
2493 Anything else indicates some sort of Unix system. */);
2494 Vsystem_type
= intern (SYSTEM_TYPE
);
2496 DEFVAR_LISP ("system-configuration", &Vsystem_configuration
,
2497 doc
: /* Value is string indicating configuration Emacs was built for.
2498 On MS-Windows, the value reflects the OS flavor and version on which
2499 Emacs is running. */);
2500 Vsystem_configuration
= build_string (EMACS_CONFIGURATION
);
2502 DEFVAR_LISP ("system-configuration-options", &Vsystem_configuration_options
,
2503 doc
: /* String containing the configuration options Emacs was built with. */);
2504 Vsystem_configuration_options
= build_string (EMACS_CONFIG_OPTIONS
);
2506 DEFVAR_BOOL ("noninteractive", &noninteractive1
,
2507 doc
: /* Non-nil means Emacs is running without interactive terminal. */);
2509 DEFVAR_LISP ("kill-emacs-hook", &Vkill_emacs_hook
,
2510 doc
: /* Hook to be run when `kill-emacs' is called.
2511 Since `kill-emacs' may be invoked when the terminal is disconnected (or
2512 in other similar situations), functions placed on this hook should not
2513 expect to be able to interact with the user. To ask for confirmation,
2514 see `kill-emacs-query-functions' instead.
2516 The hook is not run in batch mode, i.e., if `noninteractive' is non-nil. */);
2517 Vkill_emacs_hook
= Qnil
;
2519 DEFVAR_INT ("emacs-priority", &emacs_priority
,
2520 doc
: /* Priority for Emacs to run at.
2521 This value is effective only if set before Emacs is dumped,
2522 and only if the Emacs executable is installed with setuid to permit
2523 it to change priority. (Emacs sets its uid back to the real uid.)
2524 Currently, you need to define SET_EMACS_PRIORITY in `config.h'
2525 before you compile Emacs, to enable the code for this feature. */);
2528 DEFVAR_LISP ("path-separator", &Vpath_separator
,
2529 doc
: /* String containing the character that separates directories in
2530 search paths, such as PATH and other similar environment variables. */);
2533 Vpath_separator
= make_string (&c
, 1);
2536 DEFVAR_LISP ("invocation-name", &Vinvocation_name
,
2537 doc
: /* The program name that was used to run Emacs.
2538 Any directory names are omitted. */);
2540 DEFVAR_LISP ("invocation-directory", &Vinvocation_directory
,
2541 doc
: /* The directory in which the Emacs executable was found, to run it.
2542 The value is nil if that directory's name is not known. */);
2544 DEFVAR_LISP ("installation-directory", &Vinstallation_directory
,
2545 doc
: /* A directory within which to look for the `lib-src' and `etc' directories.
2546 This is non-nil when we can't find those directories in their standard
2547 installed locations, but we can find them near where the Emacs executable
2549 Vinstallation_directory
= Qnil
;
2551 DEFVAR_LISP ("system-messages-locale", &Vsystem_messages_locale
,
2552 doc
: /* System locale for messages. */);
2553 Vsystem_messages_locale
= Qnil
;
2555 DEFVAR_LISP ("previous-system-messages-locale",
2556 &Vprevious_system_messages_locale
,
2557 doc
: /* Most recently used system locale for messages. */);
2558 Vprevious_system_messages_locale
= Qnil
;
2560 DEFVAR_LISP ("system-time-locale", &Vsystem_time_locale
,
2561 doc
: /* System locale for time. */);
2562 Vsystem_time_locale
= Qnil
;
2564 DEFVAR_LISP ("previous-system-time-locale", &Vprevious_system_time_locale
,
2565 doc
: /* Most recently used system locale for time. */);
2566 Vprevious_system_time_locale
= Qnil
;
2569 /* arch-tag: 7bfd356a-c720-4612-8ab6-aa4222931c2e
2570 (do not change this comment) */