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 FILE visit FILE using find-file, then go to line LINE\n\
285 +LINE:COLUMN FILE visit FILE using find-file, then go to line LINE,\n\
287 --directory, -L DIR add DIR to variable load-path\n\
288 --eval EXPR evaluate Emacs Lisp expression EXPR\n\
289 --execute EXPR evaluate Emacs Lisp expression EXPR\n\
290 --file FILE visit FILE using find-file\n\
291 --find-file FILE visit FILE using find-file\n\
292 --funcall, -f FUNC call Emacs Lisp function FUNC with no arguments\n\
293 --insert FILE insert contents of FILE into current buffer\n\
294 --kill exit without asking for confirmation\n\
295 --load, -l FILE load Emacs Lisp FILE using the load function\n\
296 --visit FILE visit FILE using find-file\n\
302 --background-color, -bg COLOR window background color\n\
303 --basic-display, -D disable many display features;\n\
304 used for debugging Emacs\n\
305 --border-color, -bd COLOR main border color\n\
306 --border-width, -bw WIDTH width of main border\n\
307 --color, --color=MODE override color mode for character terminals;\n\
308 MODE defaults to `auto', and can also\n\
309 be `never', `auto', `always',\n\
310 or a mode name like `ansi8'\n\
311 --cursor-color, -cr COLOR color of the Emacs cursor indicating point\n\
312 --font, -fn FONT default font; must be fixed-width\n\
313 --foreground-color, -fg COLOR window foreground color\n\
314 --fullheight, -fh make the first frame high as the screen\n\
315 --fullscreen, -fs make first frame fullscreen\n\
316 --fullwidth, -fw make the first frame wide as the screen\n\
317 --geometry, -g GEOMETRY window geometry\n\
318 --no-bitmap-icon, -nbi do not use picture of gnu for Emacs icon\n\
319 --iconic start Emacs in iconified state\n\
320 --internal-border, -ib WIDTH width between text and main border\n\
321 --line-spacing, -lsp PIXELS additional space to put between lines\n\
322 --mouse-color, -ms COLOR mouse cursor color in Emacs window\n\
323 --name NAME title for initial Emacs frame\n\
324 --no-blinking-cursor, -nbc disable blinking cursor\n\
325 --reverse-video, -r, -rv switch foreground and background\n\
326 --title, -T TITLE title for initial Emacs frame\n\
327 --vertical-scroll-bars, -vb enable vertical scroll bars\n\
328 --xrm XRESOURCES set additional X resources\n\
329 --help display this help and exit\n\
330 --version output version information and exit\n\
334 You can generally also specify long option names with a single -; for\n\
335 example, -batch as well as --batch. You can use any unambiguous\n\
336 abbreviation for a --option.\n\
338 Various environment variables and window system resources also affect\n\
339 Emacs' operation. See the main documentation.\n\
341 Report bugs to %s. First, please see the Bugs\n\
342 section of the Emacs manual or the file BUGS.\n"
345 /* Signal code for the fatal signal that was received. */
346 int fatal_error_code
;
348 /* Nonzero if handling a fatal error already. */
349 int fatal_error_in_progress
;
351 /* If non-null, call this function from fatal_error_signal before
352 committing suicide. */
354 void (*fatal_error_signal_hook
) P_ ((void));
356 #ifdef HAVE_GTK_AND_PTHREAD
357 /* When compiled with GTK and running under Gnome, multiple threads meay be
358 created. Keep track of our main thread to make sure signals are delivered
359 to it (see syssignal.h). */
361 pthread_t main_thread
;
365 /* Handle bus errors, invalid instruction, etc. */
367 fatal_error_signal (sig
)
370 SIGNAL_THREAD_CHECK (sig
);
371 fatal_error_code
= sig
;
372 signal (sig
, SIG_DFL
);
374 TOTALLY_UNBLOCK_INPUT
;
376 /* If fatal error occurs in code below, avoid infinite recursion. */
377 if (! fatal_error_in_progress
)
379 fatal_error_in_progress
= 1;
381 shut_down_emacs (sig
, 0, Qnil
);
385 LIB$
STOP (SS$_ABORT
);
387 /* Signal the same code; this time it will really be fatal.
388 Remember that since we're in a signal handler, the signal we're
389 going to send is probably blocked, so we have to unblock it if we
390 want to really receive it. */
392 sigunblock (sigmask (fatal_error_code
));
395 if (fatal_error_signal_hook
)
396 fatal_error_signal_hook ();
398 kill (getpid (), fatal_error_code
);
404 /* Handler for SIGDANGER. */
406 memory_warning_signal (sig
)
409 signal (sig
, memory_warning_signal
);
410 SIGNAL_THREAD_CHECK (sig
);
412 malloc_warning ("Operating system warns that virtual memory is running low.\n");
414 /* It might be unsafe to call do_auto_save now. */
415 force_auto_save_soon ();
419 /* We define abort, rather than using it from the library,
420 so that GDB can return from a breakpoint here.
421 MSDOS has its own definition in msdos.c. */
423 #if ! defined (DOS_NT) && ! defined (NO_ABORT)
425 #ifndef ABORT_RETURN_TYPE
426 #define ABORT_RETURN_TYPE void
432 kill (getpid (), SIGABRT
);
433 /* This shouldn't be executed, but it prevents a warning. */
439 /* Code for dealing with Lisp access to the Unix command line. */
442 init_cmdargs (argc
, argv
, skip_args
)
448 Lisp_Object name
, dir
, tem
;
449 int count
= SPECPDL_INDEX ();
450 Lisp_Object raw_name
;
455 raw_name
= build_string (argv
[0]);
457 /* Add /: to the front of the name
458 if it would otherwise be treated as magic. */
459 tem
= Ffind_file_name_handler (raw_name
, Qt
);
461 raw_name
= concat2 (build_string ("/:"), raw_name
);
463 Vinvocation_name
= Ffile_name_nondirectory (raw_name
);
464 Vinvocation_directory
= Ffile_name_directory (raw_name
);
466 /* If we got no directory in argv[0], search PATH to find where
467 Emacs actually came from. */
468 if (NILP (Vinvocation_directory
))
471 int yes
= openp (Vexec_path
, Vinvocation_name
,
472 Vexec_suffixes
, &found
, make_number (X_OK
));
475 /* Add /: to the front of the name
476 if it would otherwise be treated as magic. */
477 tem
= Ffind_file_name_handler (found
, Qt
);
479 found
= concat2 (build_string ("/:"), found
);
480 Vinvocation_directory
= Ffile_name_directory (found
);
484 if (!NILP (Vinvocation_directory
)
485 && NILP (Ffile_name_absolute_p (Vinvocation_directory
)))
486 /* Emacs was started with relative path, like ./emacs.
488 Vinvocation_directory
= Fexpand_file_name (Vinvocation_directory
, Qnil
);
490 Vinstallation_directory
= Qnil
;
492 if (!NILP (Vinvocation_directory
))
494 dir
= Vinvocation_directory
;
495 name
= Fexpand_file_name (Vinvocation_name
, dir
);
498 Lisp_Object tem
, lib_src_exists
;
499 Lisp_Object etc_exists
, info_exists
;
501 /* See if dir contains subdirs for use by Emacs.
502 Check for the ones that would exist in a build directory,
503 not including lisp and info. */
504 tem
= Fexpand_file_name (build_string ("lib-src"), dir
);
505 lib_src_exists
= Ffile_exists_p (tem
);
508 /* MSDOS installations frequently remove lib-src, but we still
509 must set installation-directory, or else info won't find
510 its files (it uses the value of installation-directory). */
511 tem
= Fexpand_file_name (build_string ("info"), dir
);
512 info_exists
= Ffile_exists_p (tem
);
517 if (!NILP (lib_src_exists
) || !NILP (info_exists
))
519 tem
= Fexpand_file_name (build_string ("etc"), dir
);
520 etc_exists
= Ffile_exists_p (tem
);
521 if (!NILP (etc_exists
))
523 Vinstallation_directory
524 = Ffile_name_as_directory (dir
);
529 /* See if dir's parent contains those subdirs. */
530 tem
= Fexpand_file_name (build_string ("../lib-src"), dir
);
531 lib_src_exists
= Ffile_exists_p (tem
);
535 /* See the MSDOS commentary above. */
536 tem
= Fexpand_file_name (build_string ("../info"), dir
);
537 info_exists
= Ffile_exists_p (tem
);
542 if (!NILP (lib_src_exists
) || !NILP (info_exists
))
544 tem
= Fexpand_file_name (build_string ("../etc"), dir
);
545 etc_exists
= Ffile_exists_p (tem
);
546 if (!NILP (etc_exists
))
548 tem
= Fexpand_file_name (build_string (".."), dir
);
549 Vinstallation_directory
550 = Ffile_name_as_directory (tem
);
555 /* If the Emacs executable is actually a link,
556 next try the dir that the link points into. */
557 tem
= Ffile_symlink_p (name
);
560 name
= Fexpand_file_name (tem
, dir
);
561 dir
= Ffile_name_directory (name
);
568 Vcommand_line_args
= Qnil
;
570 for (i
= argc
- 1; i
>= 0; i
--)
572 if (i
== 0 || i
> skip_args
)
573 /* For the moment, we keep arguments as is in unibyte strings.
574 They are decoded in the function command-line after we know
575 locale-coding-system. */
577 = Fcons (make_unibyte_string (argv
[i
], strlen (argv
[i
])),
581 unbind_to (count
, Qnil
);
584 DEFUN ("invocation-name", Finvocation_name
, Sinvocation_name
, 0, 0, 0,
585 doc
: /* Return the program name that was used to run Emacs.
586 Any directory names are omitted. */)
589 return Fcopy_sequence (Vinvocation_name
);
592 DEFUN ("invocation-directory", Finvocation_directory
, Sinvocation_directory
,
594 doc
: /* Return the directory name in which the Emacs executable was located. */)
597 return Fcopy_sequence (Vinvocation_directory
);
602 #ifdef LINK_CRTL_SHARE
603 #ifdef SHARABLE_LIB_BUG
604 extern noshare
char **environ
;
605 #endif /* SHARABLE_LIB_BUG */
606 #endif /* LINK_CRTL_SHARE */
610 /* A valid but unlikely value for the TZ environment value.
611 It is OK (though a bit slower) if the user actually chooses this value. */
612 static char dump_tz
[] = "UtC0";
615 #ifndef ORDINARY_LINK
616 /* We don't include crtbegin.o and crtend.o in the link,
617 so these functions and variables might be missed.
618 Provide dummy definitions to avoid error.
619 (We don't have any real constructors or destructors.) */
621 #ifndef GCC_CTORS_IN_LIBC
622 void __do_global_ctors ()
624 void __do_global_ctors_aux ()
626 void __do_global_dtors ()
628 /* GNU/Linux has a bug in its library; avoid an error. */
630 char * __CTOR_LIST__
[2] = { (char *) (-1), 0 };
632 char * __DTOR_LIST__
[2] = { (char *) (-1), 0 };
633 #endif /* GCC_CTORS_IN_LIBC */
636 #endif /* __GNUC__ */
637 #endif /* ORDINARY_LINK */
639 /* Test whether the next argument in ARGV matches SSTR or a prefix of
640 LSTR (at least MINLEN characters). If so, then if VALPTR is non-null
641 (the argument is supposed to have a value) store in *VALPTR either
642 the next argument or the portion of this one after the equal sign.
643 ARGV is read starting at position *SKIPPTR; this index is advanced
644 by the number of arguments used.
646 Too bad we can't just use getopt for all of this, but we don't have
647 enough information to do it right. */
650 argmatch (argv
, argc
, sstr
, lstr
, minlen
, valptr
, skipptr
)
663 /* Don't access argv[argc]; give up in advance. */
664 if (argc
<= *skipptr
+ 1)
667 arg
= argv
[*skipptr
+1];
670 if (strcmp (arg
, sstr
) == 0)
674 *valptr
= argv
[*skipptr
+2];
681 arglen
= (valptr
!= NULL
&& (p
= index (arg
, '=')) != NULL
682 ? p
- arg
: strlen (arg
));
683 if (lstr
== 0 || arglen
< minlen
|| strncmp (arg
, lstr
, arglen
) != 0)
685 else if (valptr
== NULL
)
696 else if (argv
[*skipptr
+2] != NULL
)
698 *valptr
= argv
[*skipptr
+2];
708 #ifdef DOUG_LEA_MALLOC
710 /* malloc can be invoked even before main (e.g. by the dynamic
711 linker), so the dumped malloc state must be restored as early as
712 possible using this special hook. */
715 malloc_initialize_hook ()
718 extern char **environ
;
723 if (!malloc_using_checking
)
724 /* Work around a bug in glibc's malloc. MALLOC_CHECK_ must be
725 ignored if the heap to be restored was constructed without
726 malloc checking. Can't use unsetenv, since that calls malloc. */
730 for (p
= environ
; p
&& *p
; p
++)
731 if (strncmp (*p
, "MALLOC_CHECK_=", 14) == 0)
740 malloc_set_state (malloc_state_ptr
);
741 #ifndef XMALLOC_OVERRUN_CHECK
742 free (malloc_state_ptr
);
747 if (my_heap_start
== 0)
748 my_heap_start
= sbrk (0);
749 malloc_using_checking
= getenv ("MALLOC_CHECK_") != NULL
;
753 void (*__malloc_initialize_hook
) () = malloc_initialize_hook
;
755 #endif /* DOUG_LEA_MALLOC */
758 #define REPORT_EMACS_BUG_ADDRESS "bug-gnu-emacs@gnu.org"
759 #define REPORT_EMACS_BUG_PRETEST_ADDRESS "emacs-pretest-bug@gnu.org"
761 /* This function is used to determine an address to which bug report should
765 bug_reporting_address ()
771 temp
= Fsymbol_value (intern ("emacs-version"));
773 /* When `emacs-version' is invalid, use normal address. */
775 return REPORT_EMACS_BUG_ADDRESS
;
777 string
= SDATA (temp
);
779 /* Count dots in `emacs-version'. */
787 /* When `emacs-version' has at least three dots, it is development or
788 pretest version of Emacs. */
789 return count
>= 3 ? REPORT_EMACS_BUG_PRETEST_ADDRESS
: REPORT_EMACS_BUG_ADDRESS
;
809 char stack_bottom_variable
;
810 int do_initial_setlocale
;
815 #ifdef HAVE_SETRLIMIT
822 extern Lisp_Object
*stack_base
;
828 extern char my_endbss
[];
829 extern char *my_endbss_static
;
831 if (my_heap_start
== 0)
832 my_heap_start
= sbrk (0);
834 heap_bss_diff
= (char *)my_heap_start
- max (my_endbss
, my_endbss_static
);
837 #ifdef LINUX_SBRK_BUG
841 #ifdef RUN_TIME_REMAP
843 run_time_remap (argv
[0]);
848 unexec_init_emacs_zone ();
851 sort_args (argc
, argv
);
853 while (argv
[argc
]) argc
++;
855 if (argmatch (argv
, argc
, "-version", "--version", 3, NULL
, &skip_args
)
856 /* We don't know the version number unless this is a dumped Emacs.
857 So ignore --version otherwise. */
860 Lisp_Object tem
, tem2
;
861 tem
= Fsymbol_value (intern ("emacs-version"));
862 tem2
= Fsymbol_value (intern ("emacs-copyright"));
865 fprintf (stderr
, "Invalid value of `emacs-version'\n");
870 fprintf (stderr
, "Invalid value of `emacs-copyright'\n");
875 printf ("GNU Emacs %s\n", SDATA (tem
));
876 printf ("%s\n", SDATA(tem2
));
877 printf ("GNU Emacs comes with ABSOLUTELY NO WARRANTY.\n");
878 printf ("You may redistribute copies of Emacs\n");
879 printf ("under the terms of the GNU General Public License.\n");
880 printf ("For more information about these matters, ");
881 printf ("see the file named COPYING.\n");
886 #ifdef HAVE_PERSONALITY_LINUX32
887 /* See if there is a gap between the end of BSS and the heap.
888 In that case, set personality and exec ourself again. */
890 && (strcmp (argv
[argc
-1], "dump") == 0
891 || strcmp (argv
[argc
-1], "bootstrap") == 0)
892 && heap_bss_diff
> MAX_HEAP_BSS_DIFF
)
894 if (! getenv ("EMACS_HEAP_EXEC"))
896 /* Set this so we only do this once. */
897 putenv("EMACS_HEAP_EXEC=true");
899 /* A flag to turn off address randomization which is introduced
900 in linux kernel shipped with fedora core 4 */
901 #define ADD_NO_RANDOMIZE 0x0040000
902 personality (PER_LINUX32
| ADD_NO_RANDOMIZE
);
903 #undef ADD_NO_RANDOMIZE
905 execvp (argv
[0], argv
);
907 /* If the exec fails, try to dump anyway. */
911 #endif /* HAVE_PERSONALITY_LINUX32 */
914 /* Map in shared memory, if we are using that. */
916 if (argmatch (argv
, argc
, "-nl", "--no-shared-memory", 6, NULL
, &skip_args
))
919 /* The shared memory was just restored, which clobbered this. */
925 /* The shared memory was just restored, which clobbered this. */
932 extern int malloc_cookie
;
933 /* This helps out unexnext.c. */
935 if (malloc_jumpstart (malloc_cookie
) != 0)
936 printf ("malloc jumpstart failed!\n");
941 /* Skip process serial number passed in the form -psn_x_y as
942 command-line argument. The WindowServer adds this option when
943 Emacs is invoked from the Finder or by the `open' command. In
944 these cases, the working directory becomes `/', so we change it
945 to the user's home directory. */
946 if (argc
> skip_args
+ 1 && strncmp (argv
[skip_args
+1], "-psn_", 5) == 0)
948 chdir (getenv ("HOME"));
954 /* If -map specified, map the data file in. */
957 if (argmatch (argv
, argc
, "-map", "--map-data", 3, &file
, &skip_args
))
961 #ifdef LINK_CRTL_SHARE
962 #ifdef SHARABLE_LIB_BUG
963 /* Bletcherous shared libraries! */
965 stdin
= fdopen (0, "r");
967 stdout
= fdopen (1, "w");
969 stderr
= fdopen (2, "w");
972 #endif /* SHARABLE_LIB_BUG */
973 #endif /* LINK_CRTL_SHARE */
976 #if defined (HAVE_SETRLIMIT) && defined (RLIMIT_STACK)
977 /* Extend the stack space available.
978 Don't do that if dumping, since some systems (e.g. DJGPP)
979 might define a smaller stack limit at that time. */
982 && (!noninteractive
|| initialized
)
984 && !getrlimit (RLIMIT_STACK
, &rlim
))
987 extern size_t re_max_failures
;
988 /* Approximate the amount regex.c needs per unit of re_max_failures. */
989 int ratio
= 20 * sizeof (char *);
990 /* Then add 33% to cover the size of the smaller stacks that regex.c
991 successively allocates and discards, on its way to the maximum. */
993 /* Add in some extra to cover
994 what we're likely to use for other reasons. */
995 newlim
= re_max_failures
* ratio
+ 200000;
997 /* NetBSD (at least NetBSD 1.2G and former) has a bug in its
998 stack allocation routine for new process that the allocation
999 fails if stack limit is not on page boundary. So, round up the
1000 new limit to page boundary. */
1001 newlim
= (newlim
+ getpagesize () - 1) / getpagesize () * getpagesize();
1003 if (newlim
> rlim
.rlim_max
)
1005 newlim
= rlim
.rlim_max
;
1006 /* Don't let regex.c overflow the stack we have. */
1007 re_max_failures
= (newlim
- 200000) / ratio
;
1009 if (rlim
.rlim_cur
< newlim
)
1010 rlim
.rlim_cur
= newlim
;
1012 setrlimit (RLIMIT_STACK
, &rlim
);
1014 #endif /* HAVE_SETRLIMIT and RLIMIT_STACK */
1016 /* Record (approximately) where the stack begins. */
1017 stack_bottom
= &stack_bottom_variable
;
1019 #ifdef USG_SHARED_LIBRARIES
1021 brk ((void *)bss_end
);
1026 #ifndef SYSTEM_MALLOC
1027 /* Arrange to get warning messages as memory fills up. */
1028 memory_warnings (0, malloc_warning
);
1030 /* Call malloc at least once, to run the initial __malloc_hook.
1031 Also call realloc and free for consistency. */
1032 free (realloc (malloc (4), 4));
1035 /* Arrange to disable interrupt input inside malloc etc. */
1036 uninterrupt_malloc ();
1037 # endif /* not SYNC_INPUT */
1038 #endif /* not SYSTEM_MALLOC */
1040 #ifdef HAVE_GTK_AND_PTHREAD
1041 main_thread
= pthread_self ();
1042 #endif /* HAVE_GTK_AND_PTHREAD */
1044 #if defined (MSDOS) || defined (WINDOWSNT)
1045 /* We do all file input/output as binary files. When we need to translate
1046 newlines, we do that manually. */
1048 #endif /* MSDOS || WINDOWSNT */
1052 if (!isatty (fileno (stdin
)))
1053 setmode (fileno (stdin
), O_BINARY
);
1054 if (!isatty (fileno (stdout
)))
1057 setmode (fileno (stdout
), O_BINARY
);
1059 #else /* not __DJGPP__ >= 2 */
1060 (stdin
)->_flag
&= ~_IOTEXT
;
1061 (stdout
)->_flag
&= ~_IOTEXT
;
1062 (stderr
)->_flag
&= ~_IOTEXT
;
1063 #endif /* not __DJGPP__ >= 2 */
1066 #ifdef SET_EMACS_PRIORITY
1068 nice (emacs_priority
);
1070 #endif /* SET_EMACS_PRIORITY */
1072 /* Skip initial setlocale if LC_ALL is "C", as it's not needed in that case.
1073 The build procedure uses this while dumping, to ensure that the
1074 dumped Emacs does not have its system locale tables initialized,
1075 as that might cause screwups when the dumped Emacs starts up. */
1077 char *lc_all
= getenv ("LC_ALL");
1078 do_initial_setlocale
= ! lc_all
|| strcmp (lc_all
, "C");
1081 /* Set locale now, so that initial error messages are localized properly.
1082 fixup_locale must wait until later, since it builds strings. */
1083 if (do_initial_setlocale
)
1084 setlocale (LC_ALL
, "");
1086 #ifdef EXTRA_INITIALIZE
1090 inhibit_window_system
= 0;
1092 /* Handle the -t switch, which specifies filename to use as terminal. */
1096 if (argmatch (argv
, argc
, "-t", "--terminal", 4, &term
, &skip_args
))
1101 result
= emacs_open (term
, O_RDWR
, 0);
1104 char *errstring
= strerror (errno
);
1105 fprintf (stderr
, "%s: %s: %s\n", argv
[0], term
, errstring
);
1111 fprintf (stderr
, "%s: %s: not a tty\n", argv
[0], term
);
1114 fprintf (stderr
, "Using %s\n", term
);
1115 #ifdef HAVE_WINDOW_SYSTEM
1116 inhibit_window_system
= 1; /* -t => -nw */
1123 /* Command line option --no-windows is deprecated and thus not mentioned
1124 in the manual and usage informations. */
1125 if (argmatch (argv
, argc
, "-nw", "--no-window-system", 6, NULL
, &skip_args
)
1126 || argmatch (argv
, argc
, "-nw", "--no-windows", 6, NULL
, &skip_args
))
1127 inhibit_window_system
= 1;
1129 /* Handle the -batch switch, which means don't do interactive display. */
1131 if (argmatch (argv
, argc
, "-batch", "--batch", 5, NULL
, &skip_args
))
1134 Vundo_outer_limit
= Qnil
;
1136 if (argmatch (argv
, argc
, "-script", "--script", 3, &junk
, &skip_args
))
1138 noninteractive
= 1; /* Set batch mode. */
1139 /* Convert --script to --scriptload, un-skip it, and sort again
1140 so that it will be handled in proper sequence. */
1141 argv
[skip_args
- 1] = "-scriptload";
1143 sort_args (argc
, argv
);
1146 /* Handle the --help option, which gives a usage message. */
1147 if (argmatch (argv
, argc
, "-help", "--help", 3, NULL
, &skip_args
))
1149 printf (USAGE1
, argv
[0], USAGE2
);
1151 printf (USAGE4
, bug_reporting_address ());
1155 if (! noninteractive
)
1160 inherited_pgroup
= EMACS_GETPGRP (0);
1161 setpgrp (0, getpid ());
1164 #if defined (USG5) && defined (INTERRUPT_INPUT)
1168 #if defined (HAVE_GTK_AND_PTHREAD) && !defined (SYSTEM_MALLOC) && !defined (DOUG_LEA_MALLOC)
1170 extern void malloc_enable_thread
P_ ((void));
1172 malloc_enable_thread ();
1179 /* Don't catch SIGHUP if dumping. */
1186 sigblock (sigmask (SIGHUP
));
1187 /* In --batch mode, don't catch SIGHUP if already ignored.
1188 That makes nohup work. */
1189 if (! noninteractive
1190 || signal (SIGHUP
, SIG_IGN
) != SIG_IGN
)
1191 signal (SIGHUP
, fatal_error_signal
);
1192 sigunblock (sigmask (SIGHUP
));
1197 ! noninteractive
|| initialized
1203 /* Don't catch these signals in batch mode if dumping.
1204 On some machines, this sets static data that would make
1205 signal fail to work right when the dumped Emacs is run. */
1206 signal (SIGQUIT
, fatal_error_signal
);
1207 signal (SIGILL
, fatal_error_signal
);
1208 signal (SIGTRAP
, fatal_error_signal
);
1210 add_user_signal (SIGUSR1
, "sigusr1");
1213 add_user_signal (SIGUSR2
, "sigusr2");
1216 signal (SIGABRT
, fatal_error_signal
);
1219 signal (SIGHWE
, fatal_error_signal
);
1222 signal (SIGPRE
, fatal_error_signal
);
1225 signal (SIGORE
, fatal_error_signal
);
1228 signal (SIGUME
, fatal_error_signal
);
1231 signal (SIGDLK
, fatal_error_signal
);
1234 signal (SIGCPULIM
, fatal_error_signal
);
1237 /* This is missing on some systems - OS/2, for example. */
1238 signal (SIGIOT
, fatal_error_signal
);
1241 signal (SIGEMT
, fatal_error_signal
);
1243 signal (SIGFPE
, fatal_error_signal
);
1245 signal (SIGBUS
, fatal_error_signal
);
1247 signal (SIGSEGV
, fatal_error_signal
);
1249 signal (SIGSYS
, fatal_error_signal
);
1251 signal (SIGTERM
, fatal_error_signal
);
1253 signal (SIGXCPU
, fatal_error_signal
);
1256 signal (SIGXFSZ
, fatal_error_signal
);
1257 #endif /* SIGXFSZ */
1260 /* This just means available memory is getting low. */
1261 signal (SIGDANGER
, memory_warning_signal
);
1265 /* 20 is SIGCHLD, 21 is SIGTTIN, 22 is SIGTTOU. */
1266 signal (SIGXCPU
, fatal_error_signal
);
1268 signal (SIGIOINT
, fatal_error_signal
);
1270 signal (SIGGRANT
, fatal_error_signal
);
1271 signal (SIGRETRACT
, fatal_error_signal
);
1272 signal (SIGSOUND
, fatal_error_signal
);
1273 signal (SIGMSG
, fatal_error_signal
);
1277 noninteractive1
= noninteractive
;
1279 /* Perform basic initializations (not merely interning symbols). */
1286 init_charset_once ();
1287 init_coding_once ();
1288 init_syntax_once (); /* Create standard syntax table. */
1289 init_category_once (); /* Create standard category table. */
1290 /* Must be done before init_buffer. */
1291 init_casetab_once ();
1292 init_buffer_once (); /* Create buffer table and some buffers. */
1293 init_minibuf_once (); /* Create list of minibuffers. */
1294 /* Must precede init_window_once. */
1296 /* Call syms_of_xfaces before init_window_once because that
1297 function creates Vterminal_frame. Termcap frames now use
1298 faces, and the face implementation uses some symbols as
1301 /* XXX syms_of_keyboard uses some symbols in keymap.c. It would
1302 be better to arrange things not to have this dependency. */
1304 /* Call syms_of_keyboard before init_window_once because
1305 keyboard sets up symbols that include some face names that
1306 the X support will want to use. This can happen when
1307 CANNOT_DUMP is defined. */
1308 syms_of_keyboard ();
1311 /* init_window_once calls make_terminal_frame which on Mac OS
1312 creates a full-fledge output_mac type frame. This does not
1313 work correctly before syms_of_textprop, syms_of_macfns,
1314 syms_of_ccl, syms_of_fontset, syms_of_xterm, syms_of_search,
1315 syms_of_frame, mac_term_init, and init_keyboard have already
1317 syms_of_textprop ();
1323 syms_of_macselect ();
1329 mac_term_init (build_string ("Mac"), NULL
, NULL
);
1333 init_window_once (); /* Init the window system. */
1334 init_fileio_once (); /* Must precede any path manipulation. */
1335 #ifdef HAVE_WINDOW_SYSTEM
1336 init_fringe_once (); /* Swap bitmaps if necessary. */
1337 #endif /* HAVE_WINDOW_SYSTEM */
1342 if (do_initial_setlocale
)
1345 Vsystem_messages_locale
= Vprevious_system_messages_locale
;
1346 Vsystem_time_locale
= Vprevious_system_time_locale
;
1351 #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 /* Verify that all buffers are empty now, as they
1409 if (BUF_Z (XBUFFER (buffer
)) > BUF_BEG (XBUFFER (buffer
)))
1411 /* It is safe to do this crudely in an empty buffer. */
1412 XBUFFER (buffer
)->enable_multibyte_characters
= Qnil
;
1418 = argmatch (argv
, argc
, "-nl", "--no-loadup", 6, NULL
, &skip_args
);
1421 #ifdef HAVE_X_WINDOWS
1422 /* Stupid kludge to catch command-line display spec. We can't
1423 handle this argument entirely in window system dependent code
1424 because we don't even know which window system dependent code
1425 to run until we've recognized this argument. */
1427 char *displayname
= 0;
1428 int count_before
= skip_args
;
1430 /* Skip any number of -d options, but only use the last one. */
1433 int count_before_this
= skip_args
;
1435 if (argmatch (argv
, argc
, "-d", "--display", 3, &displayname
, &skip_args
))
1437 else if (argmatch (argv
, argc
, "-display", 0, 3, &displayname
, &skip_args
))
1442 count_before
= count_before_this
;
1445 /* If we have the form --display=NAME,
1446 convert it into -d name.
1447 This requires inserting a new element into argv. */
1448 if (displayname
!= 0 && skip_args
- count_before
== 1)
1450 char **new = (char **) xmalloc (sizeof (char *) * (argc
+ 2));
1453 for (j
= 0; j
< count_before
+ 1; j
++)
1455 new[count_before
+ 1] = "-d";
1456 new[count_before
+ 2] = displayname
;
1457 for (j
= count_before
+ 2; j
<argc
; j
++)
1458 new[j
+ 1] = argv
[j
];
1462 /* Change --display to -d, when its arg is separate. */
1463 else if (displayname
!= 0 && skip_args
> count_before
1464 && argv
[count_before
+ 1][1] == '-')
1465 argv
[count_before
+ 1] = "-d";
1467 /* Don't actually discard this arg. */
1468 skip_args
= count_before
;
1472 /* argmatch must not be used after here,
1473 except when bulding temacs
1474 because the -d argument has not been skipped in skip_args. */
1477 /* Call early 'cause init_environment needs it. */
1479 /* Set defaults for several environment variables. */
1481 init_environment (argc
, argv
, skip_args
);
1488 /* Initialize environment from registry settings. */
1489 init_environment (argv
);
1490 init_ntproc (); /* must precede init_editfns. */
1493 #if defined (MAC_OSX) && defined (HAVE_CARBON)
1495 init_mac_osx_environment ();
1498 /* egetenv is a pretty low-level facility, which may get called in
1499 many circumstances; it seems flimsy to put off initializing it
1500 until calling init_callproc. */
1501 set_initial_environment ();
1502 /* AIX crashes are reported in system versions 3.2.3 and 3.2.4
1503 if this is not done. Do it after set_global_environment so that we
1504 don't pollute Vglobal_environment. */
1505 /* Setting LANG here will defeat the startup locale processing... */
1510 init_buffer (); /* Init default directory of main buffer. */
1512 init_callproc_1 (); /* Must precede init_cmdargs and init_sys_modes. */
1513 init_cmdargs (argc
, argv
, skip_args
); /* Must precede init_lread. */
1517 /* Erase any pre-dump messages in the message log, to avoid confusion. */
1518 Lisp_Object old_log_max
;
1519 old_log_max
= Vmessage_log_max
;
1520 XSETFASTINT (Vmessage_log_max
, 0);
1521 message_dolog ("", 0, 1, 0);
1522 Vmessage_log_max
= old_log_max
;
1525 init_callproc (); /* Must follow init_cmdargs but not init_sys_modes. */
1528 /* Intern the names of all standard functions and variables;
1529 define standard keys. */
1533 /* The basic levels of Lisp must come first. */
1534 /* And data must come first of all
1535 for the sake of symbols like error-message. */
1537 /* Called before init_window_once for Mac OS Classic. */
1545 syms_of_floatfns ();
1549 syms_of_bytecode ();
1551 syms_of_casefiddle ();
1553 syms_of_callproc ();
1554 syms_of_category ();
1556 /* Called before init_window_once for Mac OS Classic. */
1561 #ifndef NO_DIR_LIBRARY
1563 #endif /* not NO_DIR_LIBRARY */
1569 syms_of_coding (); /* This should be after syms_of_fileio. */
1570 #ifdef CLASH_DETECTION
1571 syms_of_filelock ();
1572 #endif /* CLASH_DETECTION */
1575 /* syms_of_keymap (); */
1581 /* Called before init_window_once for Mac OS Classic. */
1586 syms_of_terminal ();
1593 /* Called before init_window_once for Mac OS Classic. */
1594 syms_of_textprop ();
1596 syms_of_composite ();
1602 #endif /* WINDOWSNT */
1605 #ifdef HAVE_WINDOW_SYSTEM
1608 #endif /* HAVE_WINDOW_SYSTEM */
1609 #ifdef HAVE_X_WINDOWS
1619 #endif /* HAVE_X_WINDOWS */
1623 /* Called before init_window_once for Mac OS Classic. */
1631 syms_of_w32select ();
1634 #endif /* HAVE_NTGUI */
1636 #if defined (MAC_OSX) && defined (HAVE_CARBON)
1640 syms_of_macselect ();
1642 #endif /* MAC_OSX && HAVE_CARBON */
1652 keys_of_casefiddle ();
1655 keys_of_keyboard ();
1662 /* Initialization that must be done even if the global variable
1663 initialized is non zero. */
1665 globals_of_w32fns ();
1666 globals_of_w32menu ();
1667 globals_of_w32select ();
1668 #endif /* HAVE_NTGUI */
1671 init_process (); /* init_display uses add_keyboard_wait_descriptor. */
1673 /* Called before init_window_once for Mac OS Classic. */
1674 init_keyboard (); /* This too must precede init_sys_modes. */
1677 init_vmsproc (); /* And this too. */
1679 if (!noninteractive
)
1682 init_vms_input ();/* init_display calls get_tty_size, that needs this. */
1684 init_display (); /* Determine terminal type. Calls init_sys_modes. */
1688 #ifdef HAVE_WINDOW_SYSTEM
1691 #endif /* HAVE_WINDOW_SYSTEM */
1706 /* Handle -l loadup, args passed by Makefile. */
1707 if (argmatch (argv
, argc
, "-l", "--load", 3, &file
, &skip_args
))
1708 Vtop_level
= Fcons (intern ("load"),
1709 Fcons (build_string (file
), Qnil
));
1710 /* Unless next switch is -nl, load "loadup.el" first thing. */
1712 Vtop_level
= Fcons (intern ("load"),
1713 Fcons (build_string ("loadup.el"), Qnil
));
1720 /* If the execution TZ happens to be the same as the dump TZ,
1721 change it to some other value and then change it back,
1722 to force the underlying implementation to reload the TZ info.
1723 This is needed on implementations that load TZ info from files,
1724 since the TZ file contents may differ between dump and execution. */
1725 char *tz
= getenv ("TZ");
1726 if (tz
&& !strcmp (tz
, dump_tz
))
1736 /* Set up for profiling. This is known to work on FreeBSD,
1737 GNU/Linux and MinGW. It might work on some other systems too.
1738 Give it a try and tell us if it works on your system. To compile
1739 for profiling, add -pg to the switches your platform uses in
1740 CFLAGS and LDFLAGS. For example:
1741 `make CFLAGS="-pg -g -O -DPROFILING=1" LDFLAGS="-pg -g"'. */
1742 #if defined (__FreeBSD__) || defined (GNU_LINUX) || defined(__MINGW32__)
1746 extern void _mcleanup ();
1748 extern unsigned char etext
asm ("etext");
1752 extern void safe_bcopy ();
1753 extern void dump_opcode_frequencies ();
1756 /* This uses safe_bcopy because that function comes first in the
1757 Emacs executable. It might be better to use something that
1758 gives the start of the text segment, but start_of_text is not
1759 defined on all systems now. */
1760 monstartup (safe_bcopy
, &etext
);
1769 #ifdef LOCALTIME_CACHE
1770 /* Some versions of localtime have a bug. They cache the value of the time
1771 zone rather than looking it up every time. Since localtime() is
1772 called to bolt the undumping time into the undumped emacs, this
1773 results in localtime ignoring the TZ environment variable.
1774 This flushes the new TZ value into localtime. */
1776 #endif /* defined (LOCALTIME_CACHE) */
1778 /* Enter editor command loop. This never returns. */
1784 /* Sort the args so we can find the most important ones
1785 at the beginning of argv. */
1787 /* First, here's a table of all the standard options. */
1789 struct standard_args
1797 struct standard_args standard_args
[] =
1799 { "-version", "--version", 150, 0 },
1801 { "-nl", "--no-shared-memory", 140, 0 },
1804 { "-map", "--map-data", 130, 0 },
1806 { "-t", "--terminal", 120, 1 },
1807 { "-nw", "--no-window-system", 110, 0 },
1808 { "-nw", "--no-windows", 110, 0 },
1809 { "-batch", "--batch", 100, 0 },
1810 { "-script", "--script", 100, 1 },
1811 { "-help", "--help", 90, 0 },
1812 { "-no-unibyte", "--no-unibyte", 83, 0 },
1813 { "-multibyte", "--multibyte", 82, 0 },
1814 { "-unibyte", "--unibyte", 81, 0 },
1815 { "-no-multibyte", "--no-multibyte", 80, 0 },
1816 { "-nl", "--no-loadup", 70, 0 },
1817 /* -d must come last before the options handled in startup.el. */
1818 { "-d", "--display", 60, 1 },
1819 { "-display", 0, 60, 1 },
1820 /* Now for the options handled in startup.el. */
1821 { "-Q", "--quick", 55, 0 },
1822 { "-quick", 0, 55, 0 },
1823 { "-q", "--no-init-file", 50, 0 },
1824 { "-no-init-file", 0, 50, 0 },
1825 { "-no-site-file", "--no-site-file", 40, 0 },
1826 { "-no-splash", "--no-splash", 40, 0 },
1827 { "-u", "--user", 30, 1 },
1828 { "-user", 0, 30, 1 },
1829 { "-debug-init", "--debug-init", 20, 0 },
1830 { "-nbi", "--no-bitmap-icon", 15, 0 },
1831 { "-iconic", "--iconic", 15, 0 },
1832 { "-D", "--basic-display", 12, 0},
1833 { "-basic-display", 0, 12, 0},
1834 { "-bg", "--background-color", 10, 1 },
1835 { "-background", 0, 10, 1 },
1836 { "-fg", "--foreground-color", 10, 1 },
1837 { "-foreground", 0, 10, 1 },
1838 { "-bd", "--border-color", 10, 1 },
1839 { "-bw", "--border-width", 10, 1 },
1840 { "-ib", "--internal-border", 10, 1 },
1841 { "-ms", "--mouse-color", 10, 1 },
1842 { "-cr", "--cursor-color", 10, 1 },
1843 { "-nbc", "--no-blinking-cursor", 10, 0 },
1844 { "-fn", "--font", 10, 1 },
1845 { "-font", 0, 10, 1 },
1846 { "-fs", "--fullscreen", 10, 0 },
1847 { "-fw", "--fullwidth", 10, 0 },
1848 { "-fh", "--fullheight", 10, 0 },
1849 { "-g", "--geometry", 10, 1 },
1850 { "-geometry", 0, 10, 1 },
1851 { "-T", "--title", 10, 1 },
1852 { "-title", 0, 10, 1 },
1853 { "-name", "--name", 10, 1 },
1854 { "-xrm", "--xrm", 10, 1 },
1855 { "-r", "--reverse-video", 5, 0 },
1857 { "-reverse", 0, 5, 0 },
1858 { "-hb", "--horizontal-scroll-bars", 5, 0 },
1859 { "-vb", "--vertical-scroll-bars", 5, 0 },
1860 { "-color", "--color", 5, 0},
1861 /* These have the same priority as ordinary file name args,
1862 so they are not reordered with respect to those. */
1863 { "-L", "--directory", 0, 1 },
1864 { "-directory", 0, 0, 1 },
1865 { "-l", "--load", 0, 1 },
1866 { "-load", 0, 0, 1 },
1867 { "-scriptload", "--scriptload", 0, 1 },
1868 { "-f", "--funcall", 0, 1 },
1869 { "-funcall", 0, 0, 1 },
1870 { "-eval", "--eval", 0, 1 },
1871 { "-execute", "--execute", 0, 1 },
1872 { "-find-file", "--find-file", 0, 1 },
1873 { "-visit", "--visit", 0, 1 },
1874 { "-file", "--file", 0, 1 },
1875 { "-insert", "--insert", 0, 1 },
1876 /* This should be processed after ordinary file name args and the like. */
1877 { "-kill", "--kill", -10, 0 },
1880 /* Reorder the elements of ARGV (assumed to have ARGC elements)
1881 so that the highest priority ones come first.
1882 Do not change the order of elements of equal priority.
1883 If an option takes an argument, keep it and its argument together.
1885 If an option that takes no argument appears more
1886 than once, eliminate all but one copy of it. */
1889 sort_args (argc
, argv
)
1893 char **new = (char **) xmalloc (sizeof (char *) * argc
);
1894 /* For each element of argv,
1895 the corresponding element of options is:
1896 0 for an option that takes no arguments,
1897 1 for an option that takes one argument, etc.
1898 -1 for an ordinary non-option argument. */
1899 int *options
= (int *) xmalloc (sizeof (int) * argc
);
1900 int *priority
= (int *) xmalloc (sizeof (int) * argc
);
1902 int incoming_used
= 1;
1906 /* Categorize all the options,
1907 and figure out which argv elts are option arguments. */
1908 for (from
= 1; from
< argc
; from
++)
1912 if (argv
[from
][0] == '-')
1917 /* If we have found "--", don't consider
1918 any more arguments as options. */
1919 if (argv
[from
][1] == '-' && argv
[from
][2] == 0)
1921 /* Leave the "--", and everything following it, at the end. */
1922 for (; from
< argc
; from
++)
1924 priority
[from
] = -100;
1930 /* Look for a match with a known old-fashioned option. */
1931 for (i
= 0; i
< sizeof (standard_args
) / sizeof (standard_args
[0]); i
++)
1932 if (!strcmp (argv
[from
], standard_args
[i
].name
))
1934 options
[from
] = standard_args
[i
].nargs
;
1935 priority
[from
] = standard_args
[i
].priority
;
1936 if (from
+ standard_args
[i
].nargs
>= argc
)
1937 fatal ("Option `%s' requires an argument\n", argv
[from
]);
1938 from
+= standard_args
[i
].nargs
;
1942 /* Look for a match with a known long option.
1943 MATCH is -1 if no match so far, -2 if two or more matches so far,
1944 >= 0 (the table index of the match) if just one match so far. */
1945 if (argv
[from
][1] == '-')
1948 thislen
= strlen (argv
[from
]);
1949 equals
= index (argv
[from
], '=');
1951 thislen
= equals
- argv
[from
];
1954 i
< sizeof (standard_args
) / sizeof (standard_args
[0]); i
++)
1955 if (standard_args
[i
].longname
1956 && !strncmp (argv
[from
], standard_args
[i
].longname
,
1965 /* If we found exactly one match, use that. */
1968 options
[from
] = standard_args
[match
].nargs
;
1969 priority
[from
] = standard_args
[match
].priority
;
1970 /* If --OPTION=VALUE syntax is used,
1971 this option uses just one argv element. */
1974 if (from
+ options
[from
] >= argc
)
1975 fatal ("Option `%s' requires an argument\n", argv
[from
]);
1976 from
+= options
[from
];
1983 /* Copy the arguments, in order of decreasing priority, to NEW. */
1985 while (incoming_used
< argc
)
1988 int best_priority
= -9999;
1990 /* Find the highest priority remaining option.
1991 If several have equal priority, take the first of them. */
1992 for (from
= 1; from
< argc
; from
++)
1994 if (argv
[from
] != 0 && priority
[from
] > best_priority
)
1996 best_priority
= priority
[from
];
1999 /* Skip option arguments--they are tied to the options. */
2000 if (options
[from
] > 0)
2001 from
+= options
[from
];
2007 /* Copy the highest priority remaining option, with its args, to NEW.
2008 Unless it is a duplicate of the previous one. */
2009 if (! (options
[best
] == 0
2010 && ! strcmp (new[to
- 1], argv
[best
])))
2012 new[to
++] = argv
[best
];
2013 for (i
= 0; i
< options
[best
]; i
++)
2014 new[to
++] = argv
[best
+ i
+ 1];
2017 incoming_used
+= 1 + (options
[best
] > 0 ? options
[best
] : 0);
2019 /* Clear out this option in ARGV. */
2021 for (i
= 0; i
< options
[best
]; i
++)
2022 argv
[best
+ i
+ 1] = 0;
2025 /* If duplicate options were deleted, fill up extra space with null ptrs. */
2029 bcopy (new, argv
, sizeof (char *) * argc
);
2036 DEFUN ("kill-emacs", Fkill_emacs
, Skill_emacs
, 0, 1, "P",
2037 doc
: /* Exit the Emacs job and kill it.
2038 If ARG is an integer, return ARG as the exit program code.
2039 If ARG is a string, stuff it as keyboard input.
2041 The value of `kill-emacs-hook', if not void,
2042 is a list of functions (of no args),
2043 all of which are called before Emacs is actually killed. */)
2047 struct gcpro gcpro1
;
2054 if (!NILP (Vrun_hooks
) && !noninteractive
)
2055 call1 (Vrun_hooks
, intern ("kill-emacs-hook"));
2059 /* Is it really necessary to do this deassign
2060 when we are going to exit anyway? */
2065 shut_down_emacs (0, 0, STRINGP (arg
) ? arg
: Qnil
);
2067 /* If we have an auto-save list file,
2068 kill it because we are exiting Emacs deliberately (not crashing).
2069 Do it after shut_down_emacs, which does an auto-save. */
2070 if (STRINGP (Vauto_save_list_file_name
))
2071 unlink (SDATA (Vauto_save_list_file_name
));
2073 exit (INTEGERP (arg
) ? XINT (arg
) : EXIT_SUCCESS
);
2079 /* Perform an orderly shutdown of Emacs. Autosave any modified
2080 buffers, kill any child processes, clean up the terminal modes (if
2081 we're in the foreground), and other stuff like that. Don't perform
2082 any redisplay; this may be called when Emacs is shutting down in
2083 the background, or after its X connection has died.
2085 If SIG is a signal number, print a message for it.
2087 This is called by fatal signal handlers, X protocol error handlers,
2091 shut_down_emacs (sig
, no_x
, stuff
)
2095 /* Prevent running of hooks from now on. */
2098 /* Don't update display from now on. */
2099 Vinhibit_redisplay
= Qt
;
2101 /* If we are controlling the terminal, reset terminal modes. */
2102 #ifdef EMACS_HAVE_TTY_PGRP
2104 int pgrp
= EMACS_GETPGRP (0);
2107 if (EMACS_GET_TTY_PGRP (0, &tpgrp
) != -1
2110 reset_all_sys_modes ();
2111 if (sig
&& sig
!= SIGTERM
)
2112 fprintf (stderr
, "Fatal error (%d)", sig
);
2117 reset_all_sys_modes ();
2120 stuff_buffered_input (stuff
);
2123 inhibit_sentinels
= 1;
2125 kill_buffer_processes (Qnil
);
2126 Fdo_auto_save (Qt
, Qnil
);
2128 #ifdef CLASH_DETECTION
2129 unlock_all_files ();
2133 kill_vms_processes ();
2136 #if 0 /* This triggers a bug in XCloseDisplay and is not needed. */
2137 #ifdef HAVE_X_WINDOWS
2138 /* It's not safe to call intern here. Maybe we are crashing. */
2139 if (!noninteractive
&& SYMBOLP (Vinitial_window_system
)
2140 && SCHARS (SYMBOL_NAME (Vinitial_window_system
)) == 1
2141 && SREF (SYMBOL_NAME (Vinitial_window_system
), 0) == 'x'
2143 Fx_close_current_connection ();
2144 #endif /* HAVE_X_WINDOWS */
2148 /* There is a tendency for a SIGIO signal to arrive within exit,
2149 and cause a SIGHUP because the input descriptor is already closed. */
2151 signal (SIGIO
, SIG_IGN
);
2158 /* Do this only if terminating normally, we want glyph matrices
2159 etc. in a core dump. */
2160 if (sig
== 0 || sig
== SIGTERM
)
2162 check_glyph_memory ();
2163 check_message_stack ();
2177 DEFUN ("dump-emacs-data", Fdump_emacs_data
, Sdump_emacs_data
, 1, 1, 0,
2178 doc
: /* Dump current state of Emacs into data file FILENAME.
2179 This function exists on systems that use HAVE_SHM. */)
2181 Lisp_Object filename
;
2183 extern char my_edata
[];
2187 CHECK_STRING (filename
);
2188 filename
= Fexpand_file_name (filename
, Qnil
);
2191 Vpurify_flag
= Qnil
;
2194 /* Tell malloc where start of impure now is. */
2195 /* Also arrange for warnings when nearly out of space. */
2196 #ifndef SYSTEM_MALLOC
2197 memory_warnings (my_edata
, malloc_warning
);
2199 map_out_data (SDATA (filename
));
2206 #else /* not HAVE_SHM */
2208 DEFUN ("dump-emacs", Fdump_emacs
, Sdump_emacs
, 2, 2, 0,
2209 doc
: /* Dump current state of Emacs into executable file FILENAME.
2210 Take symbols from SYMFILE (presumably the file you executed to run Emacs).
2211 This is used in the file `loadup.el' when building Emacs.
2213 You must run Emacs in batch mode in order to dump it. */)
2215 Lisp_Object filename
, symfile
;
2217 extern char my_edata
[];
2220 int count
= SPECPDL_INDEX ();
2224 if (! noninteractive
)
2225 error ("Dumping Emacs works only in batch mode");
2228 if (heap_bss_diff
> MAX_HEAP_BSS_DIFF
)
2230 fprintf (stderr
, "**************************************************\n");
2231 fprintf (stderr
, "Warning: Your system has a gap between BSS and the\n");
2232 fprintf (stderr
, "heap (%lu byte). This usually means that exec-shield\n",
2234 fprintf (stderr
, "or something similar is in effect. The dump may\n");
2235 fprintf (stderr
, "fail because of this. See the section about \n");
2236 fprintf (stderr
, "exec-shield in etc/PROBLEMS for more information.\n");
2237 fprintf (stderr
, "**************************************************\n");
2239 #endif /* GNU_LINUX */
2241 /* Bind `command-line-processed' to nil before dumping,
2242 so that the dumped Emacs will process its command line
2243 and set up to work with X windows if appropriate. */
2244 symbol
= intern ("command-line-processed");
2245 specbind (symbol
, Qnil
);
2247 CHECK_STRING (filename
);
2248 filename
= Fexpand_file_name (filename
, Qnil
);
2249 if (!NILP (symfile
))
2251 CHECK_STRING (symfile
);
2252 if (SCHARS (symfile
))
2253 symfile
= Fexpand_file_name (symfile
, Qnil
);
2257 Vpurify_flag
= Qnil
;
2260 set_time_zone_rule (dump_tz
);
2261 #ifndef LOCALTIME_CACHE
2262 /* Force a tz reload, since set_time_zone_rule doesn't. */
2269 mapout_data (SDATA (filename
));
2271 /* Tell malloc where start of impure now is. */
2272 /* Also arrange for warnings when nearly out of space. */
2273 #ifndef SYSTEM_MALLOC
2275 /* On Windows, this was done before dumping, and that once suffices.
2276 Meanwhile, my_edata is not valid on Windows. */
2277 memory_warnings (my_edata
, malloc_warning
);
2278 #endif /* not WINDOWSNT */
2280 #if !defined (SYSTEM_MALLOC) && defined (HAVE_GTK_AND_PTHREAD) && !defined SYNC_INPUT
2281 /* Pthread may call malloc before main, and then we will get an endless
2282 loop, because pthread_self (see alloc.c) calls malloc the first time
2283 it is called on some systems. */
2284 reset_malloc_hooks ();
2286 #ifdef DOUG_LEA_MALLOC
2287 malloc_state_ptr
= malloc_get_state ();
2290 #ifdef USE_MMAP_FOR_BUFFERS
2293 unexec (SDATA (filename
),
2294 !NILP (symfile
) ? SDATA (symfile
) : 0, my_edata
, 0, 0);
2295 #ifdef USE_MMAP_FOR_BUFFERS
2298 #ifdef DOUG_LEA_MALLOC
2299 free (malloc_state_ptr
);
2301 #endif /* not VMS */
2305 return unbind_to (count
, Qnil
);
2308 #endif /* not HAVE_SHM */
2310 #endif /* not CANNOT_DUMP */
2313 /* Recover from setlocale (LC_ALL, ""). */
2317 /* The Emacs Lisp reader needs LC_NUMERIC to be "C",
2318 so that numbers are read and printed properly for Emacs Lisp. */
2319 setlocale (LC_NUMERIC
, "C");
2322 /* Set system locale CATEGORY, with previous locale *PLOCALE, to
2325 synchronize_locale (category
, plocale
, desired_locale
)
2327 Lisp_Object
*plocale
;
2328 Lisp_Object desired_locale
;
2330 if (! EQ (*plocale
, desired_locale
))
2332 *plocale
= desired_locale
;
2333 setlocale (category
, (STRINGP (desired_locale
)
2334 ? (char *) SDATA (desired_locale
)
2339 /* Set system time locale to match Vsystem_time_locale, if possible. */
2341 synchronize_system_time_locale ()
2343 synchronize_locale (LC_TIME
, &Vprevious_system_time_locale
,
2344 Vsystem_time_locale
);
2347 /* Set system messages locale to match Vsystem_messages_locale, if
2350 synchronize_system_messages_locale ()
2353 synchronize_locale (LC_MESSAGES
, &Vprevious_system_messages_locale
,
2354 Vsystem_messages_locale
);
2357 #endif /* HAVE_SETLOCALE */
2364 decode_env_path (evarname
, defalt
)
2365 char *evarname
, *defalt
;
2367 register char *path
, *p
;
2368 Lisp_Object lpath
, element
, tem
;
2370 /* It's okay to use getenv here, because this function is only used
2371 to initialize variables when Emacs starts up, and isn't called
2374 path
= (char *) getenv (evarname
);
2380 /* Ensure values from the environment use the proper directory separator. */
2383 p
= alloca (strlen (path
) + 1);
2387 if ('/' == DIRECTORY_SEP
)
2388 dostounix_filename (path
);
2390 unixtodos_filename (path
);
2396 p
= index (path
, SEPCHAR
);
2397 if (!p
) p
= path
+ strlen (path
);
2398 element
= (p
- path
? make_string (path
, p
- path
)
2399 : build_string ("."));
2401 /* Add /: to the front of the name
2402 if it would otherwise be treated as magic. */
2403 tem
= Ffind_file_name_handler (element
, Qt
);
2405 /* However, if the handler says "I'm safe",
2406 don't bother adding /:. */
2410 prop
= Fget (tem
, intern ("safe-magic"));
2416 element
= concat2 (build_string ("/:"), element
);
2418 lpath
= Fcons (element
, lpath
);
2424 return Fnreverse (lpath
);
2430 Qfile_name_handler_alist
= intern ("file-name-handler-alist");
2431 staticpro (&Qfile_name_handler_alist
);
2435 defsubr (&Sdump_emacs_data
);
2437 defsubr (&Sdump_emacs
);
2441 defsubr (&Skill_emacs
);
2443 defsubr (&Sinvocation_name
);
2444 defsubr (&Sinvocation_directory
);
2446 DEFVAR_LISP ("command-line-args", &Vcommand_line_args
,
2447 doc
: /* Args passed by shell to Emacs, as a list of strings.
2448 Many arguments are deleted from the list as they are processed. */);
2450 DEFVAR_LISP ("system-type", &Vsystem_type
,
2451 doc
: /* Value is symbol indicating type of operating system you are using.
2453 `gnu/linux' compiled for a GNU/Linux system.
2454 `darwin' compiled for Darwin (GNU-Darwin, Mac OS X, ...).
2455 `macos' compiled for Mac OS 9.
2456 `ms-dos' compiled as an MS-DOS application.
2457 `windows-nt' compiled as a native W32 application.
2458 `cygwin' compiled using the Cygwin library.
2460 `axp-vms' compiled for a (Open)VMS system.
2461 Anything else indicates some sort of Unix system. */);
2462 Vsystem_type
= intern (SYSTEM_TYPE
);
2464 DEFVAR_LISP ("system-configuration", &Vsystem_configuration
,
2465 doc
: /* Value is string indicating configuration Emacs was built for.
2466 On MS-Windows, the value reflects the OS flavor and version on which
2467 Emacs is running. */);
2468 Vsystem_configuration
= build_string (EMACS_CONFIGURATION
);
2470 DEFVAR_LISP ("system-configuration-options", &Vsystem_configuration_options
,
2471 doc
: /* String containing the configuration options Emacs was built with. */);
2472 Vsystem_configuration_options
= build_string (EMACS_CONFIG_OPTIONS
);
2474 DEFVAR_BOOL ("noninteractive", &noninteractive1
,
2475 doc
: /* Non-nil means Emacs is running without interactive terminal. */);
2477 DEFVAR_LISP ("kill-emacs-hook", &Vkill_emacs_hook
,
2478 doc
: /* Hook to be run when kill-emacs is called.
2479 Since `kill-emacs' may be invoked when the terminal is disconnected (or
2480 in other similar situations), functions placed on this hook should not
2481 expect to be able to interact with the user. To ask for confirmation,
2482 see `kill-emacs-query-functions' instead.
2484 The hook is not run in batch mode, i.e., if `noninteractive' is non-nil. */);
2485 Vkill_emacs_hook
= Qnil
;
2487 DEFVAR_INT ("emacs-priority", &emacs_priority
,
2488 doc
: /* Priority for Emacs to run at.
2489 This value is effective only if set before Emacs is dumped,
2490 and only if the Emacs executable is installed with setuid to permit
2491 it to change priority. (Emacs sets its uid back to the real uid.)
2492 Currently, you need to define SET_EMACS_PRIORITY in `config.h'
2493 before you compile Emacs, to enable the code for this feature. */);
2496 DEFVAR_LISP ("path-separator", &Vpath_separator
,
2497 doc
: /* String containing the character that separates directories in
2498 search paths, such as PATH and other similar environment variables. */);
2501 Vpath_separator
= make_string (&c
, 1);
2504 DEFVAR_LISP ("invocation-name", &Vinvocation_name
,
2505 doc
: /* The program name that was used to run Emacs.
2506 Any directory names are omitted. */);
2508 DEFVAR_LISP ("invocation-directory", &Vinvocation_directory
,
2509 doc
: /* The directory in which the Emacs executable was found, to run it.
2510 The value is nil if that directory's name is not known. */);
2512 DEFVAR_LISP ("installation-directory", &Vinstallation_directory
,
2513 doc
: /* A directory within which to look for the `lib-src' and `etc' directories.
2514 This is non-nil when we can't find those directories in their standard
2515 installed locations, but we can find them
2516 near where the Emacs executable was found. */);
2517 Vinstallation_directory
= Qnil
;
2519 DEFVAR_LISP ("system-messages-locale", &Vsystem_messages_locale
,
2520 doc
: /* System locale for messages. */);
2521 Vsystem_messages_locale
= Qnil
;
2523 DEFVAR_LISP ("previous-system-messages-locale",
2524 &Vprevious_system_messages_locale
,
2525 doc
: /* Most recently used system locale for messages. */);
2526 Vprevious_system_messages_locale
= Qnil
;
2528 DEFVAR_LISP ("system-time-locale", &Vsystem_time_locale
,
2529 doc
: /* System locale for time. */);
2530 Vsystem_time_locale
= Qnil
;
2532 DEFVAR_LISP ("previous-system-time-locale", &Vprevious_system_time_locale
,
2533 doc
: /* Most recently used system locale for time. */);
2534 Vprevious_system_time_locale
= Qnil
;
2537 /* arch-tag: 7bfd356a-c720-4612-8ab6-aa4222931c2e
2538 (do not change this comment) */