1 /* Fully extensible Emacs, running on Unix, intended for GNU.
2 Copyright (C) 1985, 1986, 1987, 1993, 1994, 1995, 1997, 1998, 1999,
3 2001, 2002, 2003, 2004, 2005, 2006, 2007, 2008
4 Free Software Foundation, Inc.
6 This file is part of GNU Emacs.
8 GNU Emacs is free software: you can redistribute it and/or modify
9 it under the terms of the GNU General Public License as published by
10 the Free Software Foundation, either version 3 of the License, or
11 (at your option) any later version.
13 GNU Emacs is distributed in the hope that it will be useful,
14 but WITHOUT ANY WARRANTY; without even the implied warranty of
15 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
16 GNU General Public License for more details.
18 You should have received a copy of the GNU General Public License
19 along with GNU Emacs. If not, see <http://www.gnu.org/licenses/>. */
27 #include <sys/types.h>
35 #include <sys/ioctl.h>
40 #include <windows.h> /* just for w32.h */
42 #include "w32heap.h" /* for prototype of sbrk */
45 #ifdef NS_IMPL_GNUSTEP
46 /* At least under Debian, GSConfig is in a subdirectory. --Stef */
47 #include <GNUstepBase/GSConfig.h>
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. */
102 #ifndef USE_LISP_UNION_TYPE
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 #if defined(HAVE_X_WINDOWS) || defined(HAVE_NS)
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 /* Nonzero means running Emacs without interactive terminal. */
229 /* Value of Lisp variable `noninteractive'.
230 Normally same as C variable `noninteractive'
231 but nothing terrible happens if user sets this one. */
235 /* Nonzero means Emacs was started as a daemon. */
238 /* Save argv and argc. */
242 static void sort_args ();
243 void syms_of_emacs ();
245 /* MSVC needs each string be shorter than 2048 bytes, so the usage
246 strings below are split to not overflow this limit. */
248 Usage: %s [OPTION-OR-FILENAME]...\n\
250 Run Emacs, the extensible, customizable, self-documenting real-time\n\
251 display editor. The recommended way to start Emacs for normal editing\n\
252 is with no options at all.\n\
254 Run M-x info RET m emacs RET m emacs invocation RET inside Emacs to\n\
255 read the main documentation for these command-line arguments.\n\
257 Initialization options:\n\
259 --batch do not do interactive display; implies -q\n\
260 --daemon start a server in the background\n\
261 --debug-init enable Emacs Lisp debugger for init file\n\
262 --display, -d DISPLAY use X server DISPLAY\n\
263 --multibyte, --no-unibyte inhibit the effect of EMACS_UNIBYTE\n\
264 --no-desktop do not load a saved desktop\n\
265 --no-init-file, -q load neither ~/.emacs nor default.el\n\
266 --no-shared-memory, -nl do not use shared memory\n\
267 --no-site-file do not load site-start.el\n\
268 --no-splash do not display a splash screen on startup\n\
269 --no-window-system, -nw do not communicate with X, ignoring $DISPLAY\n\
270 --quick, -Q equivalent to -q --no-site-file --no-splash\n\
271 --script FILE run FILE as an Emacs Lisp script\n\
272 --terminal, -t DEVICE use DEVICE for terminal I/O\n\
273 --unibyte, --no-multibyte run Emacs in unibyte mode\n\
274 --user, -u USER load ~USER/.emacs instead of your own\n\
280 FILE visit FILE using find-file\n\
281 +LINE go to line LINE in next FILE\n\
282 +LINE:COLUMN go to line LINE, column COLUMN, in next FILE\n\
283 --directory, -L DIR add DIR to variable load-path\n\
284 --eval EXPR evaluate Emacs Lisp expression EXPR\n\
285 --execute EXPR evaluate Emacs Lisp expression EXPR\n\
286 --file FILE visit FILE using find-file\n\
287 --find-file FILE visit FILE using find-file\n\
288 --funcall, -f FUNC call Emacs Lisp function FUNC with no arguments\n\
289 --insert FILE insert contents of FILE into current buffer\n\
290 --kill exit without asking for confirmation\n\
291 --load, -l FILE load Emacs Lisp FILE using the load function\n\
292 --visit FILE visit FILE using find-file\n\
298 --background-color, -bg COLOR window background color\n\
299 --basic-display, -D disable many display features;\n\
300 used for debugging Emacs\n\
301 --border-color, -bd COLOR main border color\n\
302 --border-width, -bw WIDTH width of main border\n\
303 --color, --color=MODE override color mode for character terminals;\n\
304 MODE defaults to `auto', and can also\n\
305 be `never', `auto', `always',\n\
306 or a mode name like `ansi8'\n\
307 --cursor-color, -cr COLOR color of the Emacs cursor indicating point\n\
308 --font, -fn FONT default font; must be fixed-width\n\
309 --foreground-color, -fg COLOR window foreground color\n\
310 --fullheight, -fh make the first frame high as the screen\n\
311 --fullscreen, -fs make first frame fullscreen\n\
312 --fullwidth, -fw make the first frame wide as the screen\n\
313 --geometry, -g GEOMETRY window geometry\n\
314 --no-bitmap-icon, -nbi do not use picture of gnu for Emacs icon\n\
315 --iconic start Emacs in iconified state\n\
316 --internal-border, -ib WIDTH width between text and main border\n\
317 --line-spacing, -lsp PIXELS additional space to put between lines\n\
318 --mouse-color, -ms COLOR mouse cursor color in Emacs window\n\
319 --name NAME title for initial Emacs frame\n\
320 --no-blinking-cursor, -nbc disable blinking cursor\n\
321 --reverse-video, -r, -rv switch foreground and background\n\
322 --title, -T TITLE title for initial Emacs frame\n\
323 --vertical-scroll-bars, -vb enable vertical scroll bars\n\
324 --xrm XRESOURCES set additional X resources\n\
325 --parent-id XID set parent window\n\
326 --help display this help and exit\n\
327 --version output version information and exit\n\
331 You can generally also specify long option names with a single -; for\n\
332 example, -batch as well as --batch. You can use any unambiguous\n\
333 abbreviation for a --option.\n\
335 Various environment variables and window system resources also affect\n\
336 Emacs' operation. See the main documentation.\n\
338 Report bugs to %s. First, please see the Bugs\n\
339 section of the Emacs manual or the file BUGS.\n"
342 /* Signal code for the fatal signal that was received. */
343 int fatal_error_code
;
345 /* Nonzero if handling a fatal error already. */
346 int fatal_error_in_progress
;
348 /* If non-null, call this function from fatal_error_signal before
349 committing suicide. */
351 void (*fatal_error_signal_hook
) P_ ((void));
353 #ifdef FORWARD_SIGNAL_TO_MAIN_THREAD
354 /* When compiled with GTK and running under Gnome,
355 multiple threads may be created. Keep track of our main
356 thread to make sure signals are delivered to it (see syssignal.h). */
358 pthread_t main_thread
;
362 /* Handle bus errors, invalid instruction, etc. */
364 fatal_error_signal (sig
)
367 SIGNAL_THREAD_CHECK (sig
);
368 fatal_error_code
= sig
;
369 signal (sig
, SIG_DFL
);
371 TOTALLY_UNBLOCK_INPUT
;
373 /* If fatal error occurs in code below, avoid infinite recursion. */
374 if (! fatal_error_in_progress
)
376 fatal_error_in_progress
= 1;
378 shut_down_emacs (sig
, 0, Qnil
);
381 /* Signal the same code; this time it will really be fatal.
382 Remember that since we're in a signal handler, the signal we're
383 going to send is probably blocked, so we have to unblock it if we
384 want to really receive it. */
386 sigunblock (sigmask (fatal_error_code
));
389 if (fatal_error_signal_hook
)
390 fatal_error_signal_hook ();
392 kill (getpid (), fatal_error_code
);
397 /* Handler for SIGDANGER. */
399 memory_warning_signal (sig
)
402 signal (sig
, memory_warning_signal
);
403 SIGNAL_THREAD_CHECK (sig
);
405 malloc_warning ("Operating system warns that virtual memory is running low.\n");
407 /* It might be unsafe to call do_auto_save now. */
408 force_auto_save_soon ();
412 /* We define abort, rather than using it from the library,
413 so that GDB can return from a breakpoint here.
414 MSDOS has its own definition in msdos.c. */
416 #if ! defined (DOS_NT) && ! defined (NO_ABORT)
421 kill (getpid (), SIGABRT
);
422 /* This shouldn't be executed, but it prevents a warning. */
428 /* Code for dealing with Lisp access to the Unix command line. */
431 init_cmdargs (argc
, argv
, skip_args
)
437 Lisp_Object name
, dir
, tem
;
438 int count
= SPECPDL_INDEX ();
439 Lisp_Object raw_name
;
444 raw_name
= build_string (argv
[0]);
446 /* Add /: to the front of the name
447 if it would otherwise be treated as magic. */
448 tem
= Ffind_file_name_handler (raw_name
, Qt
);
450 raw_name
= concat2 (build_string ("/:"), raw_name
);
452 Vinvocation_name
= Ffile_name_nondirectory (raw_name
);
453 Vinvocation_directory
= Ffile_name_directory (raw_name
);
455 /* If we got no directory in argv[0], search PATH to find where
456 Emacs actually came from. */
457 if (NILP (Vinvocation_directory
))
460 int yes
= openp (Vexec_path
, Vinvocation_name
,
461 Vexec_suffixes
, &found
, make_number (X_OK
));
464 /* Add /: to the front of the name
465 if it would otherwise be treated as magic. */
466 tem
= Ffind_file_name_handler (found
, Qt
);
468 found
= concat2 (build_string ("/:"), found
);
469 Vinvocation_directory
= Ffile_name_directory (found
);
473 if (!NILP (Vinvocation_directory
)
474 && NILP (Ffile_name_absolute_p (Vinvocation_directory
)))
475 /* Emacs was started with relative path, like ./emacs.
477 Vinvocation_directory
= Fexpand_file_name (Vinvocation_directory
, Qnil
);
479 Vinstallation_directory
= Qnil
;
481 if (!NILP (Vinvocation_directory
))
483 dir
= Vinvocation_directory
;
484 name
= Fexpand_file_name (Vinvocation_name
, dir
);
487 Lisp_Object tem
, lib_src_exists
;
488 Lisp_Object etc_exists
, info_exists
;
490 /* See if dir contains subdirs for use by Emacs.
491 Check for the ones that would exist in a build directory,
492 not including lisp and info. */
493 tem
= Fexpand_file_name (build_string ("lib-src"), dir
);
494 lib_src_exists
= Ffile_exists_p (tem
);
497 /* MSDOS installations frequently remove lib-src, but we still
498 must set installation-directory, or else info won't find
499 its files (it uses the value of installation-directory). */
500 tem
= Fexpand_file_name (build_string ("info"), dir
);
501 info_exists
= Ffile_exists_p (tem
);
506 if (!NILP (lib_src_exists
) || !NILP (info_exists
))
508 tem
= Fexpand_file_name (build_string ("etc"), dir
);
509 etc_exists
= Ffile_exists_p (tem
);
510 if (!NILP (etc_exists
))
512 Vinstallation_directory
513 = Ffile_name_as_directory (dir
);
518 /* See if dir's parent contains those subdirs. */
519 tem
= Fexpand_file_name (build_string ("../lib-src"), dir
);
520 lib_src_exists
= Ffile_exists_p (tem
);
524 /* See the MSDOS commentary above. */
525 tem
= Fexpand_file_name (build_string ("../info"), dir
);
526 info_exists
= Ffile_exists_p (tem
);
531 if (!NILP (lib_src_exists
) || !NILP (info_exists
))
533 tem
= Fexpand_file_name (build_string ("../etc"), dir
);
534 etc_exists
= Ffile_exists_p (tem
);
535 if (!NILP (etc_exists
))
537 tem
= Fexpand_file_name (build_string (".."), dir
);
538 Vinstallation_directory
539 = Ffile_name_as_directory (tem
);
544 /* If the Emacs executable is actually a link,
545 next try the dir that the link points into. */
546 tem
= Ffile_symlink_p (name
);
549 name
= Fexpand_file_name (tem
, dir
);
550 dir
= Ffile_name_directory (name
);
557 Vcommand_line_args
= Qnil
;
559 for (i
= argc
- 1; i
>= 0; i
--)
561 if (i
== 0 || i
> skip_args
)
562 /* For the moment, we keep arguments as is in unibyte strings.
563 They are decoded in the function command-line after we know
564 locale-coding-system. */
566 = Fcons (make_unibyte_string (argv
[i
], strlen (argv
[i
])),
570 unbind_to (count
, Qnil
);
573 DEFUN ("invocation-name", Finvocation_name
, Sinvocation_name
, 0, 0, 0,
574 doc
: /* Return the program name that was used to run Emacs.
575 Any directory names are omitted. */)
578 return Fcopy_sequence (Vinvocation_name
);
581 DEFUN ("invocation-directory", Finvocation_directory
, Sinvocation_directory
,
583 doc
: /* Return the directory name in which the Emacs executable was located. */)
586 return Fcopy_sequence (Vinvocation_directory
);
591 /* A valid but unlikely value for the TZ environment value.
592 It is OK (though a bit slower) if the user actually chooses this value. */
593 static char dump_tz
[] = "UtC0";
596 #ifndef ORDINARY_LINK
597 /* We don't include crtbegin.o and crtend.o in the link,
598 so these functions and variables might be missed.
599 Provide dummy definitions to avoid error.
600 (We don't have any real constructors or destructors.) */
602 #ifndef GCC_CTORS_IN_LIBC
603 void __do_global_ctors ()
605 void __do_global_ctors_aux ()
607 void __do_global_dtors ()
609 /* GNU/Linux has a bug in its library; avoid an error. */
611 char * __CTOR_LIST__
[2] = { (char *) (-1), 0 };
613 char * __DTOR_LIST__
[2] = { (char *) (-1), 0 };
614 #endif /* GCC_CTORS_IN_LIBC */
617 #endif /* __GNUC__ */
618 #endif /* ORDINARY_LINK */
620 /* Test whether the next argument in ARGV matches SSTR or a prefix of
621 LSTR (at least MINLEN characters). If so, then if VALPTR is non-null
622 (the argument is supposed to have a value) store in *VALPTR either
623 the next argument or the portion of this one after the equal sign.
624 ARGV is read starting at position *SKIPPTR; this index is advanced
625 by the number of arguments used.
627 Too bad we can't just use getopt for all of this, but we don't have
628 enough information to do it right. */
631 argmatch (argv
, argc
, sstr
, lstr
, minlen
, valptr
, skipptr
)
644 /* Don't access argv[argc]; give up in advance. */
645 if (argc
<= *skipptr
+ 1)
648 arg
= argv
[*skipptr
+1];
651 if (strcmp (arg
, sstr
) == 0)
655 *valptr
= argv
[*skipptr
+2];
662 arglen
= (valptr
!= NULL
&& (p
= index (arg
, '=')) != NULL
663 ? p
- arg
: strlen (arg
));
664 if (lstr
== 0 || arglen
< minlen
|| strncmp (arg
, lstr
, arglen
) != 0)
666 else if (valptr
== NULL
)
677 else if (argv
[*skipptr
+2] != NULL
)
679 *valptr
= argv
[*skipptr
+2];
689 #ifdef DOUG_LEA_MALLOC
691 /* malloc can be invoked even before main (e.g. by the dynamic
692 linker), so the dumped malloc state must be restored as early as
693 possible using this special hook. */
696 malloc_initialize_hook ()
699 extern char **environ
;
704 if (!malloc_using_checking
)
705 /* Work around a bug in glibc's malloc. MALLOC_CHECK_ must be
706 ignored if the heap to be restored was constructed without
707 malloc checking. Can't use unsetenv, since that calls malloc. */
711 for (p
= environ
; p
&& *p
; p
++)
712 if (strncmp (*p
, "MALLOC_CHECK_=", 14) == 0)
721 malloc_set_state (malloc_state_ptr
);
722 #ifndef XMALLOC_OVERRUN_CHECK
723 free (malloc_state_ptr
);
728 if (my_heap_start
== 0)
729 my_heap_start
= sbrk (0);
730 malloc_using_checking
= getenv ("MALLOC_CHECK_") != NULL
;
734 void (*__malloc_initialize_hook
) () = malloc_initialize_hook
;
736 #endif /* DOUG_LEA_MALLOC */
739 #define REPORT_EMACS_BUG_ADDRESS "bug-gnu-emacs@gnu.org"
740 #define REPORT_EMACS_BUG_PRETEST_ADDRESS "emacs-pretest-bug@gnu.org"
742 /* This function is used to determine an address to which bug report should
746 bug_reporting_address ()
752 temp
= Fsymbol_value (intern ("emacs-version"));
754 /* When `emacs-version' is invalid, use normal address. */
756 return REPORT_EMACS_BUG_ADDRESS
;
758 string
= SDATA (temp
);
760 /* Count dots in `emacs-version'. */
768 /* When `emacs-version' has at least three dots, it is development or
769 pretest version of Emacs. */
770 return count
>= 3 ? REPORT_EMACS_BUG_PRETEST_ADDRESS
: REPORT_EMACS_BUG_ADDRESS
;
776 main (int argc
, char **argv
)
781 char stack_bottom_variable
;
782 int do_initial_setlocale
;
787 #ifdef HAVE_SETRLIMIT
794 extern Lisp_Object
*stack_base
;
800 extern char my_endbss
[];
801 extern char *my_endbss_static
;
803 if (my_heap_start
== 0)
804 my_heap_start
= sbrk (0);
806 heap_bss_diff
= (char *)my_heap_start
- max (my_endbss
, my_endbss_static
);
809 #ifdef LINUX_SBRK_BUG
810 /* This is only used GNU/LINUX running on alpha when using libc5 */
814 #ifdef RUN_TIME_REMAP
816 run_time_remap (argv
[0]);
819 /* If using unexmacosx.c (set by s/darwin.h), we must do this. */
822 unexec_init_emacs_zone ();
825 sort_args (argc
, argv
);
827 while (argv
[argc
]) argc
++;
829 if (argmatch (argv
, argc
, "-version", "--version", 3, NULL
, &skip_args
)
830 /* We don't know the version number unless this is a dumped Emacs.
831 So ignore --version otherwise. */
834 Lisp_Object tem
, tem2
;
835 tem
= Fsymbol_value (intern ("emacs-version"));
836 tem2
= Fsymbol_value (intern ("emacs-copyright"));
839 fprintf (stderr
, "Invalid value of `emacs-version'\n");
844 fprintf (stderr
, "Invalid value of `emacs-copyright'\n");
849 printf ("GNU Emacs %s\n", SDATA (tem
));
850 printf ("%s\n", SDATA(tem2
));
851 printf ("GNU Emacs comes with ABSOLUTELY NO WARRANTY.\n");
852 printf ("You may redistribute copies of Emacs\n");
853 printf ("under the terms of the GNU General Public License.\n");
854 printf ("For more information about these matters, ");
855 printf ("see the file named COPYING.\n");
860 #ifdef HAVE_PERSONALITY_LINUX32
861 /* See if there is a gap between the end of BSS and the heap.
862 In that case, set personality and exec ourself again. */
864 && (strcmp (argv
[argc
-1], "dump") == 0
865 || strcmp (argv
[argc
-1], "bootstrap") == 0)
866 && heap_bss_diff
> MAX_HEAP_BSS_DIFF
)
868 if (! getenv ("EMACS_HEAP_EXEC"))
870 /* Set this so we only do this once. */
871 putenv("EMACS_HEAP_EXEC=true");
873 /* A flag to turn off address randomization which is introduced
874 in linux kernel shipped with fedora core 4 */
875 #define ADD_NO_RANDOMIZE 0x0040000
876 personality (PER_LINUX32
| ADD_NO_RANDOMIZE
);
877 #undef ADD_NO_RANDOMIZE
879 execvp (argv
[0], argv
);
881 /* If the exec fails, try to dump anyway. */
885 #endif /* HAVE_PERSONALITY_LINUX32 */
888 /* Map in shared memory, if we are using that. */
890 if (argmatch (argv
, argc
, "-nl", "--no-shared-memory", 6, NULL
, &skip_args
))
893 /* The shared memory was just restored, which clobbered this. */
899 /* The shared memory was just restored, which clobbered this. */
904 #if defined (HAVE_SETRLIMIT) && defined (RLIMIT_STACK)
905 /* Extend the stack space available.
906 Don't do that if dumping, since some systems (e.g. DJGPP)
907 might define a smaller stack limit at that time. */
910 && (!noninteractive
|| initialized
)
912 && !getrlimit (RLIMIT_STACK
, &rlim
))
915 extern size_t re_max_failures
;
916 /* Approximate the amount regex.c needs per unit of re_max_failures. */
917 int ratio
= 20 * sizeof (char *);
918 /* Then add 33% to cover the size of the smaller stacks that regex.c
919 successively allocates and discards, on its way to the maximum. */
921 /* Add in some extra to cover
922 what we're likely to use for other reasons. */
923 newlim
= re_max_failures
* ratio
+ 200000;
925 /* NetBSD (at least NetBSD 1.2G and former) has a bug in its
926 stack allocation routine for new process that the allocation
927 fails if stack limit is not on page boundary. So, round up the
928 new limit to page boundary. */
929 newlim
= (newlim
+ getpagesize () - 1) / getpagesize () * getpagesize();
931 if (newlim
> rlim
.rlim_max
)
933 newlim
= rlim
.rlim_max
;
934 /* Don't let regex.c overflow the stack we have. */
935 re_max_failures
= (newlim
- 200000) / ratio
;
937 if (rlim
.rlim_cur
< newlim
)
938 rlim
.rlim_cur
= newlim
;
940 setrlimit (RLIMIT_STACK
, &rlim
);
942 #endif /* HAVE_SETRLIMIT and RLIMIT_STACK */
944 /* Record (approximately) where the stack begins. */
945 stack_bottom
= &stack_bottom_variable
;
949 #ifndef SYSTEM_MALLOC
950 /* Arrange to get warning messages as memory fills up. */
951 memory_warnings (0, malloc_warning
);
953 /* Call malloc at least once, to run the initial __malloc_hook.
954 Also call realloc and free for consistency. */
955 free (realloc (malloc (4), 4));
958 /* Arrange to disable interrupt input inside malloc etc. */
959 uninterrupt_malloc ();
960 # endif /* not SYNC_INPUT */
961 #endif /* not SYSTEM_MALLOC */
963 #ifdef FORWARD_SIGNAL_TO_MAIN_THREAD
964 main_thread
= pthread_self ();
965 #endif /* FORWARD_SIGNAL_TO_MAIN_THREAD */
967 #if defined (MSDOS) || defined (WINDOWSNT)
968 /* We do all file input/output as binary files. When we need to translate
969 newlines, we do that manually. */
971 #endif /* MSDOS || WINDOWSNT */
975 if (!isatty (fileno (stdin
)))
976 setmode (fileno (stdin
), O_BINARY
);
977 if (!isatty (fileno (stdout
)))
980 setmode (fileno (stdout
), O_BINARY
);
982 #else /* not __DJGPP__ >= 2 */
983 (stdin
)->_flag
&= ~_IOTEXT
;
984 (stdout
)->_flag
&= ~_IOTEXT
;
985 (stderr
)->_flag
&= ~_IOTEXT
;
986 #endif /* not __DJGPP__ >= 2 */
989 #ifdef SET_EMACS_PRIORITY
991 nice (emacs_priority
);
993 #endif /* SET_EMACS_PRIORITY */
995 /* Skip initial setlocale if LC_ALL is "C", as it's not needed in that case.
996 The build procedure uses this while dumping, to ensure that the
997 dumped Emacs does not have its system locale tables initialized,
998 as that might cause screwups when the dumped Emacs starts up. */
1000 char *lc_all
= getenv ("LC_ALL");
1001 do_initial_setlocale
= ! lc_all
|| strcmp (lc_all
, "C");
1004 /* Set locale now, so that initial error messages are localized properly.
1005 fixup_locale must wait until later, since it builds strings. */
1006 if (do_initial_setlocale
)
1007 setlocale (LC_ALL
, "");
1009 inhibit_window_system
= 0;
1011 /* Handle the -t switch, which specifies filename to use as terminal. */
1015 if (argmatch (argv
, argc
, "-t", "--terminal", 4, &term
, &skip_args
))
1020 result
= emacs_open (term
, O_RDWR
, 0);
1023 char *errstring
= strerror (errno
);
1024 fprintf (stderr
, "%s: %s: %s\n", argv
[0], term
, errstring
);
1030 fprintf (stderr
, "%s: %s: not a tty\n", argv
[0], term
);
1033 fprintf (stderr
, "Using %s\n", term
);
1034 #ifdef HAVE_WINDOW_SYSTEM
1035 inhibit_window_system
= 1; /* -t => -nw */
1042 /* Command line option --no-windows is deprecated and thus not mentioned
1043 in the manual and usage informations. */
1044 if (argmatch (argv
, argc
, "-nw", "--no-window-system", 6, NULL
, &skip_args
)
1045 || argmatch (argv
, argc
, "-nw", "--no-windows", 6, NULL
, &skip_args
))
1046 inhibit_window_system
= 1;
1048 /* Handle the -batch switch, which means don't do interactive display. */
1050 if (argmatch (argv
, argc
, "-batch", "--batch", 5, NULL
, &skip_args
))
1053 Vundo_outer_limit
= Qnil
;
1055 if (argmatch (argv
, argc
, "-script", "--script", 3, &junk
, &skip_args
))
1057 noninteractive
= 1; /* Set batch mode. */
1058 /* Convert --script to -scriptload, un-skip it, and sort again
1059 so that it will be handled in proper sequence. */
1060 /* FIXME broken for --script=FILE - is that supposed to work? */
1061 argv
[skip_args
- 1] = "-scriptload";
1063 sort_args (argc
, argv
);
1066 /* Handle the --help option, which gives a usage message. */
1067 if (argmatch (argv
, argc
, "-help", "--help", 3, NULL
, &skip_args
))
1069 printf (USAGE1
, argv
[0], USAGE2
);
1071 printf (USAGE4
, bug_reporting_address ());
1075 if (argmatch (argv
, argc
, "-daemon", "--daemon", 5, NULL
, &skip_args
))
1084 fprintf (stderr
, "Cannot fork!\n");
1088 nfd
= open ("/dev/null", O_RDWR
);
1098 fprintf (stderr
, "This platform does not support the -daemon flag.\n");
1103 if (! noninteractive
)
1108 inherited_pgroup
= EMACS_GETPGRP (0);
1109 setpgrp (0, getpid ());
1112 #if defined (USG5) && defined (INTERRUPT_INPUT)
1116 #if defined (HAVE_GTK_AND_PTHREAD) && !defined (SYSTEM_MALLOC) && !defined (DOUG_LEA_MALLOC)
1118 extern void malloc_enable_thread
P_ ((void));
1120 malloc_enable_thread ();
1127 /* Don't catch SIGHUP if dumping. */
1134 sigblock (sigmask (SIGHUP
));
1135 /* In --batch mode, don't catch SIGHUP if already ignored.
1136 That makes nohup work. */
1137 if (! noninteractive
1138 || signal (SIGHUP
, SIG_IGN
) != SIG_IGN
)
1139 signal (SIGHUP
, fatal_error_signal
);
1140 sigunblock (sigmask (SIGHUP
));
1145 ! noninteractive
|| initialized
1151 /* Don't catch these signals in batch mode if dumping.
1152 On some machines, this sets static data that would make
1153 signal fail to work right when the dumped Emacs is run. */
1154 signal (SIGQUIT
, fatal_error_signal
);
1155 signal (SIGILL
, fatal_error_signal
);
1156 signal (SIGTRAP
, fatal_error_signal
);
1158 add_user_signal (SIGUSR1
, "sigusr1");
1161 add_user_signal (SIGUSR2
, "sigusr2");
1164 signal (SIGABRT
, fatal_error_signal
);
1167 signal (SIGHWE
, fatal_error_signal
);
1170 signal (SIGPRE
, fatal_error_signal
);
1173 signal (SIGORE
, fatal_error_signal
);
1176 signal (SIGUME
, fatal_error_signal
);
1179 signal (SIGDLK
, fatal_error_signal
);
1182 signal (SIGCPULIM
, fatal_error_signal
);
1185 /* This is missing on some systems - OS/2, for example. */
1186 signal (SIGIOT
, fatal_error_signal
);
1189 signal (SIGEMT
, fatal_error_signal
);
1191 signal (SIGFPE
, fatal_error_signal
);
1193 signal (SIGBUS
, fatal_error_signal
);
1195 signal (SIGSEGV
, fatal_error_signal
);
1197 signal (SIGSYS
, fatal_error_signal
);
1199 signal (SIGTERM
, fatal_error_signal
);
1201 signal (SIGXCPU
, fatal_error_signal
);
1204 signal (SIGXFSZ
, fatal_error_signal
);
1205 #endif /* SIGXFSZ */
1208 /* This just means available memory is getting low. */
1209 signal (SIGDANGER
, memory_warning_signal
);
1213 /* 20 is SIGCHLD, 21 is SIGTTIN, 22 is SIGTTOU. */
1214 signal (SIGXCPU
, fatal_error_signal
);
1216 signal (SIGIOINT
, fatal_error_signal
);
1218 signal (SIGGRANT
, fatal_error_signal
);
1219 signal (SIGRETRACT
, fatal_error_signal
);
1220 signal (SIGSOUND
, fatal_error_signal
);
1221 signal (SIGMSG
, fatal_error_signal
);
1225 noninteractive1
= noninteractive
;
1227 /* Perform basic initializations (not merely interning symbols). */
1234 init_character_once ();
1235 init_charset_once ();
1236 init_coding_once ();
1237 init_syntax_once (); /* Create standard syntax table. */
1238 init_category_once (); /* Create standard category table. */
1239 /* Must be done before init_buffer. */
1240 init_casetab_once ();
1241 init_buffer_once (); /* Create buffer table and some buffers. */
1242 init_minibuf_once (); /* Create list of minibuffers. */
1243 /* Must precede init_window_once. */
1245 /* Call syms_of_xfaces before init_window_once because that
1246 function creates Vterminal_frame. Termcap frames now use
1247 faces, and the face implementation uses some symbols as
1250 /* XXX syms_of_keyboard uses some symbols in keymap.c. It would
1251 be better to arrange things not to have this dependency. */
1253 /* Call syms_of_keyboard before init_window_once because
1254 keyboard sets up symbols that include some face names that
1255 the X support will want to use. This can happen when
1256 CANNOT_DUMP is defined. */
1257 syms_of_keyboard ();
1259 /* Called before syms_of_fileio, because it sets up Qerror_condition. */
1262 /* Before syms_of_coding to initialize Vgc_cons_threshold. */
1264 /* Before syms_of_coding because it initializes Qcharsetp. */
1266 /* Before init_window_once, because it sets up the
1267 Vcoding_system_hash_table. */
1268 syms_of_coding (); /* This should be after syms_of_fileio. */
1270 init_window_once (); /* Init the window system. */
1271 init_fileio_once (); /* Must precede any path manipulation. */
1272 #ifdef HAVE_WINDOW_SYSTEM
1273 init_fringe_once (); /* Swap bitmaps if necessary. */
1274 #endif /* HAVE_WINDOW_SYSTEM */
1279 if (do_initial_setlocale
)
1282 Vsystem_messages_locale
= Vprevious_system_messages_locale
;
1283 Vsystem_time_locale
= Vprevious_system_time_locale
;
1288 #ifdef CLASH_DETECTION
1292 running_asynch_code
= 0;
1294 /* Handle --unibyte and the EMACS_UNIBYTE envvar,
1295 but not while dumping. */
1298 int inhibit_unibyte
= 0;
1300 /* --multibyte overrides EMACS_UNIBYTE. */
1301 if (argmatch (argv
, argc
, "-no-unibyte", "--no-unibyte", 4, NULL
, &skip_args
)
1302 || argmatch (argv
, argc
, "-multibyte", "--multibyte", 4, NULL
, &skip_args
)
1303 /* Ignore EMACS_UNIBYTE before dumping. */
1304 || (!initialized
&& noninteractive
))
1305 inhibit_unibyte
= 1;
1307 /* --unibyte requests that we set up to do everything with single-byte
1308 buffers and strings. We need to handle this before calling
1309 init_lread, init_editfns and other places that generate Lisp strings
1310 from text in the environment. */
1311 /* Actually this shouldn't be needed as of 20.4 in a generally
1312 unibyte environment. As handa says, environment values
1313 aren't now decoded; also existing buffers are now made
1314 unibyte during startup if .emacs sets unibyte. Tested with
1315 8-bit data in environment variables and /etc/passwd, setting
1316 unibyte and Latin-1 in .emacs. -- Dave Love */
1317 if (argmatch (argv
, argc
, "-unibyte", "--unibyte", 4, NULL
, &skip_args
)
1318 || argmatch (argv
, argc
, "-no-multibyte", "--no-multibyte", 4, NULL
, &skip_args
)
1319 || (getenv ("EMACS_UNIBYTE") && !inhibit_unibyte
))
1321 Lisp_Object old_log_max
;
1322 Lisp_Object symbol
, tail
;
1324 symbol
= intern ("default-enable-multibyte-characters");
1325 Fset (symbol
, Qnil
);
1329 /* Erase pre-dump messages in *Messages* now so no abort. */
1330 old_log_max
= Vmessage_log_max
;
1331 XSETFASTINT (Vmessage_log_max
, 0);
1332 message_dolog ("", 0, 1, 0);
1333 Vmessage_log_max
= old_log_max
;
1336 for (tail
= Vbuffer_alist
; CONSP (tail
);
1341 buffer
= Fcdr (XCAR (tail
));
1342 /* Make a multibyte buffer unibyte. */
1343 if (BUF_Z_BYTE (XBUFFER (buffer
)) > BUF_Z (XBUFFER (buffer
)))
1345 struct buffer
*current
= current_buffer
;
1347 set_buffer_temp (XBUFFER (buffer
));
1348 Fset_buffer_multibyte (Qnil
);
1349 set_buffer_temp (current
);
1356 = argmatch (argv
, argc
, "-nl", "--no-loadup", 6, NULL
, &skip_args
);
1359 ns_alloc_autorelease_pool();
1360 if (!noninteractive
)
1364 #ifdef NS_IMPL_COCOA
1365 if (skip_args
< argc
)
1367 if (!strncmp(argv
[skip_args
], "-psn", 4))
1370 chdir (getenv ("HOME"));
1372 else if (skip_args
+1 < argc
&& !strncmp(argv
[skip_args
+1], "-psn", 4))
1375 chdir (getenv ("HOME"));
1379 /* This used for remote operation.. not fully implemented yet. */
1380 if (argmatch (argv
, argc
, "-_NSMachLaunch", 0, 3, &tmp
, &skip_args
))
1382 else if (argmatch (argv
, argc
, "-MachLaunch", 0, 3, &tmp
, &skip_args
))
1384 else if (argmatch (argv
, argc
, "-macosx", 0, 2, NULL
, &skip_args
))
1386 else if (argmatch (argv
, argc
, "-NSHost", 0, 3, &tmp
, &skip_args
))
1389 #endif /* HAVE_NS */
1391 #ifdef HAVE_X_WINDOWS
1392 /* Stupid kludge to catch command-line display spec. We can't
1393 handle this argument entirely in window system dependent code
1394 because we don't even know which window system dependent code
1395 to run until we've recognized this argument. */
1397 char *displayname
= 0;
1398 int count_before
= skip_args
;
1400 /* Skip any number of -d options, but only use the last one. */
1403 int count_before_this
= skip_args
;
1405 if (argmatch (argv
, argc
, "-d", "--display", 3, &displayname
, &skip_args
))
1407 else if (argmatch (argv
, argc
, "-display", 0, 3, &displayname
, &skip_args
))
1412 count_before
= count_before_this
;
1415 /* If we have the form --display=NAME,
1416 convert it into -d name.
1417 This requires inserting a new element into argv. */
1418 if (displayname
!= 0 && skip_args
- count_before
== 1)
1420 char **new = (char **) xmalloc (sizeof (char *) * (argc
+ 2));
1423 for (j
= 0; j
< count_before
+ 1; j
++)
1425 new[count_before
+ 1] = "-d";
1426 new[count_before
+ 2] = displayname
;
1427 for (j
= count_before
+ 2; j
<argc
; j
++)
1428 new[j
+ 1] = argv
[j
];
1432 /* Change --display to -d, when its arg is separate. */
1433 else if (displayname
!= 0 && skip_args
> count_before
1434 && argv
[count_before
+ 1][1] == '-')
1435 argv
[count_before
+ 1] = "-d";
1437 /* Don't actually discard this arg. */
1438 skip_args
= count_before
;
1442 /* argmatch must not be used after here,
1443 except when bulding temacs
1444 because the -d argument has not been skipped in skip_args. */
1447 /* Call early 'cause init_environment needs it. */
1449 /* Set defaults for several environment variables. */
1451 init_environment (argc
, argv
, skip_args
);
1458 /* Initialize environment from registry settings. */
1459 init_environment (argv
);
1460 init_ntproc (); /* must precede init_editfns. */
1470 /* egetenv is a pretty low-level facility, which may get called in
1471 many circumstances; it seems flimsy to put off initializing it
1472 until calling init_callproc. */
1473 set_initial_environment ();
1474 /* AIX crashes are reported in system versions 3.2.3 and 3.2.4
1475 if this is not done. Do it after set_global_environment so that we
1476 don't pollute Vglobal_environment. */
1477 /* Setting LANG here will defeat the startup locale processing... */
1482 init_buffer (); /* Init default directory of main buffer. */
1484 init_callproc_1 (); /* Must precede init_cmdargs and init_sys_modes. */
1485 init_cmdargs (argc
, argv
, skip_args
); /* Must precede init_lread. */
1489 /* Erase any pre-dump messages in the message log, to avoid confusion. */
1490 Lisp_Object old_log_max
;
1491 old_log_max
= Vmessage_log_max
;
1492 XSETFASTINT (Vmessage_log_max
, 0);
1493 message_dolog ("", 0, 1, 0);
1494 Vmessage_log_max
= old_log_max
;
1497 init_callproc (); /* Must follow init_cmdargs but not init_sys_modes. */
1500 /* Intern the names of all standard functions and variables;
1501 define standard keys. */
1505 /* The basic levels of Lisp must come first. */
1506 /* And data must come first of all
1507 for the sake of symbols like error-message. */
1514 syms_of_floatfns ();
1517 syms_of_bytecode ();
1519 syms_of_casefiddle ();
1521 syms_of_callproc ();
1522 syms_of_category ();
1524 syms_of_character ();
1526 #ifndef NO_DIR_LIBRARY
1528 #endif /* not NO_DIR_LIBRARY */
1533 #ifdef CLASH_DETECTION
1534 syms_of_filelock ();
1535 #endif /* CLASH_DETECTION */
1538 /* syms_of_keymap (); */
1546 syms_of_terminal ();
1552 syms_of_textprop ();
1553 syms_of_composite ();
1556 #endif /* WINDOWSNT */
1560 #ifdef HAVE_WINDOW_SYSTEM
1563 #endif /* HAVE_WINDOW_SYSTEM */
1564 #ifdef HAVE_X_WINDOWS
1575 #endif /* HAVE_X_WINDOWS */
1582 syms_of_w32select ();
1585 #endif /* HAVE_NTGUI */
1595 syms_of_nsselect ();
1597 #endif /* HAVE_NS */
1600 syms_of_dbusbind ();
1601 #endif /* HAVE_DBUS */
1611 keys_of_casefiddle ();
1614 keys_of_keyboard ();
1620 /* Initialization that must be done even if the global variable
1621 initialized is non zero. */
1623 globals_of_w32fns ();
1624 globals_of_w32menu ();
1625 globals_of_w32select ();
1626 #endif /* HAVE_NTGUI */
1631 init_editfns (); /* init_process uses Voperating_system_release. */
1632 init_process (); /* init_display uses add_keyboard_wait_descriptor. */
1633 init_keyboard (); /* This too must precede init_sys_modes. */
1634 if (!noninteractive
)
1635 init_display (); /* Determine terminal type. Calls init_sys_modes. */
1638 #ifdef HAVE_WINDOW_SYSTEM
1641 #endif /* HAVE_WINDOW_SYSTEM */
1652 /* Handle -l loadup, args passed by Makefile. */
1653 if (argmatch (argv
, argc
, "-l", "--load", 3, &file
, &skip_args
))
1654 Vtop_level
= Fcons (intern ("load"),
1655 Fcons (build_string (file
), Qnil
));
1656 /* Unless next switch is -nl, load "loadup.el" first thing. */
1658 Vtop_level
= Fcons (intern ("load"),
1659 Fcons (build_string ("loadup.el"), Qnil
));
1666 /* If the execution TZ happens to be the same as the dump TZ,
1667 change it to some other value and then change it back,
1668 to force the underlying implementation to reload the TZ info.
1669 This is needed on implementations that load TZ info from files,
1670 since the TZ file contents may differ between dump and execution. */
1671 char *tz
= getenv ("TZ");
1672 if (tz
&& !strcmp (tz
, dump_tz
))
1682 /* Set up for profiling. This is known to work on FreeBSD,
1683 GNU/Linux and MinGW. It might work on some other systems too.
1684 Give it a try and tell us if it works on your system. To compile
1685 for profiling, add -pg to the switches your platform uses in
1686 CFLAGS and LDFLAGS. For example:
1687 `make CFLAGS="-pg -g -O -DPROFILING=1" LDFLAGS="-pg -g"'. */
1688 #if defined (__FreeBSD__) || defined (GNU_LINUX) || defined(__MINGW32__)
1692 extern void _mcleanup ();
1694 extern unsigned char etext
asm ("etext");
1698 extern void safe_bcopy ();
1699 extern void dump_opcode_frequencies ();
1702 /* This uses safe_bcopy because that function comes first in the
1703 Emacs executable. It might be better to use something that
1704 gives the start of the text segment, but start_of_text is not
1705 defined on all systems now. */
1706 monstartup (safe_bcopy
, &etext
);
1715 #ifdef LOCALTIME_CACHE
1716 /* Some versions of localtime have a bug. They cache the value of the time
1717 zone rather than looking it up every time. Since localtime() is
1718 called to bolt the undumping time into the undumped emacs, this
1719 results in localtime ignoring the TZ environment variable.
1720 This flushes the new TZ value into localtime. */
1722 #endif /* defined (LOCALTIME_CACHE) */
1724 /* Enter editor command loop. This never returns. */
1730 /* Sort the args so we can find the most important ones
1731 at the beginning of argv. */
1733 /* First, here's a table of all the standard options. */
1735 struct standard_args
1743 struct standard_args standard_args
[] =
1745 { "-version", "--version", 150, 0 },
1747 { "-nl", "--no-shared-memory", 140, 0 },
1749 { "-t", "--terminal", 120, 1 },
1750 { "-nw", "--no-window-system", 110, 0 },
1751 { "-nw", "--no-windows", 110, 0 },
1752 { "-batch", "--batch", 100, 0 },
1753 { "-script", "--script", 100, 1 },
1754 { "-daemon", "--daemon", 99, 0 },
1755 { "-help", "--help", 90, 0 },
1756 { "-no-unibyte", "--no-unibyte", 83, 0 },
1757 { "-multibyte", "--multibyte", 82, 0 },
1758 { "-unibyte", "--unibyte", 81, 0 },
1759 { "-no-multibyte", "--no-multibyte", 80, 0 },
1760 { "-nl", "--no-loadup", 70, 0 },
1761 /* -d must come last before the options handled in startup.el. */
1762 { "-d", "--display", 60, 1 },
1763 { "-display", 0, 60, 1 },
1764 /* Now for the options handled in startup.el. */
1765 { "-Q", "--quick", 55, 0 },
1766 { "-quick", 0, 55, 0 },
1767 { "-q", "--no-init-file", 50, 0 },
1768 { "-no-init-file", 0, 50, 0 },
1769 { "-no-site-file", "--no-site-file", 40, 0 },
1770 { "-u", "--user", 30, 1 },
1771 { "-user", 0, 30, 1 },
1772 { "-debug-init", "--debug-init", 20, 0 },
1773 { "-nbi", "--no-bitmap-icon", 15, 0 },
1774 { "-iconic", "--iconic", 15, 0 },
1775 { "-D", "--basic-display", 12, 0},
1776 { "-basic-display", 0, 12, 0},
1777 { "-bg", "--background-color", 10, 1 },
1778 { "-background", 0, 10, 1 },
1779 { "-fg", "--foreground-color", 10, 1 },
1780 { "-foreground", 0, 10, 1 },
1781 { "-bd", "--border-color", 10, 1 },
1782 { "-bw", "--border-width", 10, 1 },
1783 { "-ib", "--internal-border", 10, 1 },
1784 { "-ms", "--mouse-color", 10, 1 },
1785 { "-cr", "--cursor-color", 10, 1 },
1786 { "-nbc", "--no-blinking-cursor", 10, 0 },
1787 { "-fn", "--font", 10, 1 },
1788 { "-font", 0, 10, 1 },
1789 { "-fs", "--fullscreen", 10, 0 },
1790 { "-fw", "--fullwidth", 10, 0 },
1791 { "-fh", "--fullheight", 10, 0 },
1792 { "-g", "--geometry", 10, 1 },
1793 { "-geometry", 0, 10, 1 },
1794 { "-T", "--title", 10, 1 },
1795 { "-title", 0, 10, 1 },
1796 { "-name", "--name", 10, 1 },
1797 { "-xrm", "--xrm", 10, 1 },
1798 { "-parent-id", "--parent-id", 10, 1 },
1799 { "-r", "--reverse-video", 5, 0 },
1801 { "-reverse", 0, 5, 0 },
1802 { "-hb", "--horizontal-scroll-bars", 5, 0 },
1803 { "-vb", "--vertical-scroll-bars", 5, 0 },
1804 { "-color", "--color", 5, 0},
1805 { "-no-splash", "--no-splash", 3, 0 },
1806 { "-no-desktop", "--no-desktop", 3, 0 },
1808 { "-NSAutoLaunch", 0, 5, 1 },
1809 { "-NXAutoLaunch", 0, 5, 1 },
1810 { "-disable-font-backend", "--disable-font-backend", 65, 0 },
1811 { "-_NSMachLaunch", 0, 85, 1 },
1812 { "-MachLaunch", 0, 85, 1 },
1813 { "-macosx", 0, 85, 0 },
1814 { "-NSHost", 0, 85, 1 },
1816 /* These have the same priority as ordinary file name args,
1817 so they are not reordered with respect to those. */
1818 { "-L", "--directory", 0, 1 },
1819 { "-directory", 0, 0, 1 },
1820 { "-l", "--load", 0, 1 },
1821 { "-load", 0, 0, 1 },
1822 /* This has no longname, because using --scriptload confuses sort_args,
1823 because then the --script long option seems to match twice; ie
1824 you can't have a long option which is a prefix of another long
1825 option. In any case, this is entirely an internal option. */
1826 { "-scriptload", NULL
, 0, 1 },
1827 { "-f", "--funcall", 0, 1 },
1828 { "-funcall", 0, 0, 1 },
1829 { "-eval", "--eval", 0, 1 },
1830 { "-execute", "--execute", 0, 1 },
1831 { "-find-file", "--find-file", 0, 1 },
1832 { "-visit", "--visit", 0, 1 },
1833 { "-file", "--file", 0, 1 },
1834 { "-insert", "--insert", 0, 1 },
1836 { "-NXOpen", 0, 0, 1 },
1837 { "-NXOpenTemp", 0, 0, 1 },
1838 { "-NSOpen", 0, 0, 1 },
1839 { "-NSOpenTemp", 0, 0, 1 },
1840 { "-GSFilePath", 0, 0, 1 },
1842 /* This should be processed after ordinary file name args and the like. */
1843 { "-kill", "--kill", -10, 0 },
1846 /* Reorder the elements of ARGV (assumed to have ARGC elements)
1847 so that the highest priority ones come first.
1848 Do not change the order of elements of equal priority.
1849 If an option takes an argument, keep it and its argument together.
1851 If an option that takes no argument appears more
1852 than once, eliminate all but one copy of it. */
1855 sort_args (argc
, argv
)
1859 char **new = (char **) xmalloc (sizeof (char *) * argc
);
1860 /* For each element of argv,
1861 the corresponding element of options is:
1862 0 for an option that takes no arguments,
1863 1 for an option that takes one argument, etc.
1864 -1 for an ordinary non-option argument. */
1865 int *options
= (int *) xmalloc (sizeof (int) * argc
);
1866 int *priority
= (int *) xmalloc (sizeof (int) * argc
);
1868 int incoming_used
= 1;
1872 /* Categorize all the options,
1873 and figure out which argv elts are option arguments. */
1874 for (from
= 1; from
< argc
; from
++)
1878 if (argv
[from
][0] == '-')
1883 /* If we have found "--", don't consider
1884 any more arguments as options. */
1885 if (argv
[from
][1] == '-' && argv
[from
][2] == 0)
1887 /* Leave the "--", and everything following it, at the end. */
1888 for (; from
< argc
; from
++)
1890 priority
[from
] = -100;
1896 /* Look for a match with a known old-fashioned option. */
1897 for (i
= 0; i
< sizeof (standard_args
) / sizeof (standard_args
[0]); i
++)
1898 if (!strcmp (argv
[from
], standard_args
[i
].name
))
1900 options
[from
] = standard_args
[i
].nargs
;
1901 priority
[from
] = standard_args
[i
].priority
;
1902 if (from
+ standard_args
[i
].nargs
>= argc
)
1903 fatal ("Option `%s' requires an argument\n", argv
[from
]);
1904 from
+= standard_args
[i
].nargs
;
1908 /* Look for a match with a known long option.
1909 MATCH is -1 if no match so far, -2 if two or more matches so far,
1910 >= 0 (the table index of the match) if just one match so far. */
1911 if (argv
[from
][1] == '-')
1914 thislen
= strlen (argv
[from
]);
1915 equals
= index (argv
[from
], '=');
1917 thislen
= equals
- argv
[from
];
1920 i
< sizeof (standard_args
) / sizeof (standard_args
[0]); i
++)
1921 if (standard_args
[i
].longname
1922 && !strncmp (argv
[from
], standard_args
[i
].longname
,
1931 /* If we found exactly one match, use that. */
1934 options
[from
] = standard_args
[match
].nargs
;
1935 priority
[from
] = standard_args
[match
].priority
;
1936 /* If --OPTION=VALUE syntax is used,
1937 this option uses just one argv element. */
1940 if (from
+ options
[from
] >= argc
)
1941 fatal ("Option `%s' requires an argument\n", argv
[from
]);
1942 from
+= options
[from
];
1944 /* FIXME When match < 0, shouldn't there be some error,
1945 or at least indication to the user that there was a
1952 /* Copy the arguments, in order of decreasing priority, to NEW. */
1954 while (incoming_used
< argc
)
1957 int best_priority
= -9999;
1959 /* Find the highest priority remaining option.
1960 If several have equal priority, take the first of them. */
1961 for (from
= 1; from
< argc
; from
++)
1963 if (argv
[from
] != 0 && priority
[from
] > best_priority
)
1965 best_priority
= priority
[from
];
1968 /* Skip option arguments--they are tied to the options. */
1969 if (options
[from
] > 0)
1970 from
+= options
[from
];
1976 /* Copy the highest priority remaining option, with its args, to NEW.
1977 Unless it is a duplicate of the previous one. */
1978 if (! (options
[best
] == 0
1979 && ! strcmp (new[to
- 1], argv
[best
])))
1981 new[to
++] = argv
[best
];
1982 for (i
= 0; i
< options
[best
]; i
++)
1983 new[to
++] = argv
[best
+ i
+ 1];
1986 incoming_used
+= 1 + (options
[best
] > 0 ? options
[best
] : 0);
1988 /* Clear out this option in ARGV. */
1990 for (i
= 0; i
< options
[best
]; i
++)
1991 argv
[best
+ i
+ 1] = 0;
1994 /* If duplicate options were deleted, fill up extra space with null ptrs. */
1998 bcopy (new, argv
, sizeof (char *) * argc
);
2005 DEFUN ("kill-emacs", Fkill_emacs
, Skill_emacs
, 0, 1, "P",
2006 doc
: /* Exit the Emacs job and kill it.
2007 If ARG is an integer, return ARG as the exit program code.
2008 If ARG is a string, stuff it as keyboard input.
2010 The value of `kill-emacs-hook', if not void,
2011 is a list of functions (of no args),
2012 all of which are called before Emacs is actually killed. */)
2016 struct gcpro gcpro1
;
2023 if (!NILP (Vrun_hooks
) && !noninteractive
)
2024 call1 (Vrun_hooks
, intern ("kill-emacs-hook"));
2028 shut_down_emacs (0, 0, STRINGP (arg
) ? arg
: Qnil
);
2030 /* If we have an auto-save list file,
2031 kill it because we are exiting Emacs deliberately (not crashing).
2032 Do it after shut_down_emacs, which does an auto-save. */
2033 if (STRINGP (Vauto_save_list_file_name
))
2034 unlink (SDATA (Vauto_save_list_file_name
));
2036 exit (INTEGERP (arg
) ? XINT (arg
) : EXIT_SUCCESS
);
2042 /* Perform an orderly shutdown of Emacs. Autosave any modified
2043 buffers, kill any child processes, clean up the terminal modes (if
2044 we're in the foreground), and other stuff like that. Don't perform
2045 any redisplay; this may be called when Emacs is shutting down in
2046 the background, or after its X connection has died.
2048 If SIG is a signal number, print a message for it.
2050 This is called by fatal signal handlers, X protocol error handlers,
2054 shut_down_emacs (sig
, no_x
, stuff
)
2058 /* Prevent running of hooks from now on. */
2061 /* Don't update display from now on. */
2062 Vinhibit_redisplay
= Qt
;
2064 /* If we are controlling the terminal, reset terminal modes. */
2065 #ifdef EMACS_HAVE_TTY_PGRP
2067 int pgrp
= EMACS_GETPGRP (0);
2070 if (EMACS_GET_TTY_PGRP (0, &tpgrp
) != -1
2073 reset_all_sys_modes ();
2074 if (sig
&& sig
!= SIGTERM
)
2075 fprintf (stderr
, "Fatal error (%d)", sig
);
2080 reset_all_sys_modes ();
2083 stuff_buffered_input (stuff
);
2086 inhibit_sentinels
= 1;
2088 kill_buffer_processes (Qnil
);
2089 Fdo_auto_save (Qt
, Qnil
);
2091 #ifdef CLASH_DETECTION
2092 unlock_all_files ();
2095 #if 0 /* This triggers a bug in XCloseDisplay and is not needed. */
2096 #ifdef HAVE_X_WINDOWS
2097 /* It's not safe to call intern here. Maybe we are crashing. */
2098 if (!noninteractive
&& SYMBOLP (Vinitial_window_system
)
2099 && SCHARS (SYMBOL_NAME (Vinitial_window_system
)) == 1
2100 && SREF (SYMBOL_NAME (Vinitial_window_system
), 0) == 'x'
2102 Fx_close_current_connection ();
2103 #endif /* HAVE_X_WINDOWS */
2107 /* There is a tendency for a SIGIO signal to arrive within exit,
2108 and cause a SIGHUP because the input descriptor is already closed. */
2110 signal (SIGIO
, SIG_IGN
);
2117 /* Do this only if terminating normally, we want glyph matrices
2118 etc. in a core dump. */
2119 if (sig
== 0 || sig
== SIGTERM
)
2121 check_glyph_memory ();
2122 check_message_stack ();
2130 ns_term_shutdown (sig
);
2140 DEFUN ("dump-emacs-data", Fdump_emacs_data
, Sdump_emacs_data
, 1, 1, 0,
2141 doc
: /* Dump current state of Emacs into data file FILENAME.
2142 This function exists on systems that use HAVE_SHM. */)
2144 Lisp_Object filename
;
2146 extern char my_edata
[];
2150 CHECK_STRING (filename
);
2151 filename
= Fexpand_file_name (filename
, Qnil
);
2154 Vpurify_flag
= Qnil
;
2157 /* Tell malloc where start of impure now is. */
2158 /* Also arrange for warnings when nearly out of space. */
2159 #ifndef SYSTEM_MALLOC
2160 memory_warnings (my_edata
, malloc_warning
);
2162 map_out_data (SDATA (filename
));
2169 #else /* not HAVE_SHM */
2171 DEFUN ("dump-emacs", Fdump_emacs
, Sdump_emacs
, 2, 2, 0,
2172 doc
: /* Dump current state of Emacs into executable file FILENAME.
2173 Take symbols from SYMFILE (presumably the file you executed to run Emacs).
2174 This is used in the file `loadup.el' when building Emacs.
2176 You must run Emacs in batch mode in order to dump it. */)
2178 Lisp_Object filename
, symfile
;
2180 extern char my_edata
[];
2183 int count
= SPECPDL_INDEX ();
2187 if (! noninteractive
)
2188 error ("Dumping Emacs works only in batch mode");
2191 if (heap_bss_diff
> MAX_HEAP_BSS_DIFF
)
2193 fprintf (stderr
, "**************************************************\n");
2194 fprintf (stderr
, "Warning: Your system has a gap between BSS and the\n");
2195 fprintf (stderr
, "heap (%lu bytes). This usually means that exec-shield\n",
2197 fprintf (stderr
, "or something similar is in effect. The dump may\n");
2198 fprintf (stderr
, "fail because of this. See the section about\n");
2199 fprintf (stderr
, "exec-shield in etc/PROBLEMS for more information.\n");
2200 fprintf (stderr
, "**************************************************\n");
2202 #endif /* GNU_LINUX */
2204 /* Bind `command-line-processed' to nil before dumping,
2205 so that the dumped Emacs will process its command line
2206 and set up to work with X windows if appropriate. */
2207 symbol
= intern ("command-line-processed");
2208 specbind (symbol
, Qnil
);
2210 CHECK_STRING (filename
);
2211 filename
= Fexpand_file_name (filename
, Qnil
);
2212 if (!NILP (symfile
))
2214 CHECK_STRING (symfile
);
2215 if (SCHARS (symfile
))
2216 symfile
= Fexpand_file_name (symfile
, Qnil
);
2220 Vpurify_flag
= Qnil
;
2223 set_time_zone_rule (dump_tz
);
2224 #ifndef LOCALTIME_CACHE
2225 /* Force a tz reload, since set_time_zone_rule doesn't. */
2231 /* Tell malloc where start of impure now is. */
2232 /* Also arrange for warnings when nearly out of space. */
2233 #ifndef SYSTEM_MALLOC
2235 /* On Windows, this was done before dumping, and that once suffices.
2236 Meanwhile, my_edata is not valid on Windows. */
2237 memory_warnings (my_edata
, malloc_warning
);
2238 #endif /* not WINDOWSNT */
2240 #if !defined (SYSTEM_MALLOC) && defined (HAVE_GTK_AND_PTHREAD) && !defined SYNC_INPUT
2241 /* Pthread may call malloc before main, and then we will get an endless
2242 loop, because pthread_self (see alloc.c) calls malloc the first time
2243 it is called on some systems. */
2244 reset_malloc_hooks ();
2246 #ifdef DOUG_LEA_MALLOC
2247 malloc_state_ptr
= malloc_get_state ();
2250 #ifdef USE_MMAP_FOR_BUFFERS
2253 unexec (SDATA (filename
),
2254 !NILP (symfile
) ? SDATA (symfile
) : 0, my_edata
, 0, 0);
2255 #ifdef USE_MMAP_FOR_BUFFERS
2258 #ifdef DOUG_LEA_MALLOC
2259 free (malloc_state_ptr
);
2264 return unbind_to (count
, Qnil
);
2267 #endif /* not HAVE_SHM */
2269 #endif /* not CANNOT_DUMP */
2272 /* Recover from setlocale (LC_ALL, ""). */
2276 /* The Emacs Lisp reader needs LC_NUMERIC to be "C",
2277 so that numbers are read and printed properly for Emacs Lisp. */
2278 setlocale (LC_NUMERIC
, "C");
2281 /* Set system locale CATEGORY, with previous locale *PLOCALE, to
2284 synchronize_locale (category
, plocale
, desired_locale
)
2286 Lisp_Object
*plocale
;
2287 Lisp_Object desired_locale
;
2289 if (! EQ (*plocale
, desired_locale
))
2291 *plocale
= desired_locale
;
2292 setlocale (category
, (STRINGP (desired_locale
)
2293 ? (char *) SDATA (desired_locale
)
2298 /* Set system time locale to match Vsystem_time_locale, if possible. */
2300 synchronize_system_time_locale ()
2302 synchronize_locale (LC_TIME
, &Vprevious_system_time_locale
,
2303 Vsystem_time_locale
);
2306 /* Set system messages locale to match Vsystem_messages_locale, if
2309 synchronize_system_messages_locale ()
2312 synchronize_locale (LC_MESSAGES
, &Vprevious_system_messages_locale
,
2313 Vsystem_messages_locale
);
2316 #endif /* HAVE_SETLOCALE */
2323 decode_env_path (evarname
, defalt
)
2324 char *evarname
, *defalt
;
2326 register char *path
, *p
;
2327 Lisp_Object lpath
, element
, tem
;
2329 /* It's okay to use getenv here, because this function is only used
2330 to initialize variables when Emacs starts up, and isn't called
2333 path
= (char *) getenv (evarname
);
2339 /* Ensure values from the environment use the proper directory separator. */
2342 p
= alloca (strlen (path
) + 1);
2346 if ('/' == DIRECTORY_SEP
)
2347 dostounix_filename (path
);
2349 unixtodos_filename (path
);
2355 p
= index (path
, SEPCHAR
);
2356 if (!p
) p
= path
+ strlen (path
);
2357 element
= (p
- path
? make_string (path
, p
- path
)
2358 : build_string ("."));
2360 /* Add /: to the front of the name
2361 if it would otherwise be treated as magic. */
2362 tem
= Ffind_file_name_handler (element
, Qt
);
2364 /* However, if the handler says "I'm safe",
2365 don't bother adding /:. */
2369 prop
= Fget (tem
, intern ("safe-magic"));
2375 element
= concat2 (build_string ("/:"), element
);
2377 lpath
= Fcons (element
, lpath
);
2383 return Fnreverse (lpath
);
2386 DEFUN ("daemonp", Fdaemonp
, Sdaemonp
, 0, 0, 0,
2387 doc
: /* Return t if the current emacs process is a daemon. */)
2390 return is_daemon
? Qt
: Qnil
;
2396 Qfile_name_handler_alist
= intern ("file-name-handler-alist");
2397 staticpro (&Qfile_name_handler_alist
);
2401 defsubr (&Sdump_emacs_data
);
2403 defsubr (&Sdump_emacs
);
2407 defsubr (&Skill_emacs
);
2409 defsubr (&Sinvocation_name
);
2410 defsubr (&Sinvocation_directory
);
2411 defsubr (&Sdaemonp
);
2413 DEFVAR_LISP ("command-line-args", &Vcommand_line_args
,
2414 doc
: /* Args passed by shell to Emacs, as a list of strings.
2415 Many arguments are deleted from the list as they are processed. */);
2417 DEFVAR_LISP ("system-type", &Vsystem_type
,
2418 doc
: /* Value is symbol indicating type of operating system you are using.
2420 `gnu' compiled for a GNU Hurd system.
2421 `gnu/linux' compiled for a GNU/Linux system.
2422 `darwin' compiled for Darwin (GNU-Darwin, Mac OS X, ...).
2423 `ms-dos' compiled as an MS-DOS application.
2424 `windows-nt' compiled as a native W32 application.
2425 `cygwin' compiled using the Cygwin library.
2426 Anything else indicates some sort of Unix system. */);
2427 Vsystem_type
= intern (SYSTEM_TYPE
);
2429 DEFVAR_LISP ("system-configuration", &Vsystem_configuration
,
2430 doc
: /* Value is string indicating configuration Emacs was built for.
2431 On MS-Windows, the value reflects the OS flavor and version on which
2432 Emacs is running. */);
2433 Vsystem_configuration
= build_string (EMACS_CONFIGURATION
);
2435 DEFVAR_LISP ("system-configuration-options", &Vsystem_configuration_options
,
2436 doc
: /* String containing the configuration options Emacs was built with. */);
2437 Vsystem_configuration_options
= build_string (EMACS_CONFIG_OPTIONS
);
2439 DEFVAR_BOOL ("noninteractive", &noninteractive1
,
2440 doc
: /* Non-nil means Emacs is running without interactive terminal. */);
2442 DEFVAR_LISP ("kill-emacs-hook", &Vkill_emacs_hook
,
2443 doc
: /* Hook to be run when `kill-emacs' is called.
2444 Since `kill-emacs' may be invoked when the terminal is disconnected (or
2445 in other similar situations), functions placed on this hook should not
2446 expect to be able to interact with the user. To ask for confirmation,
2447 see `kill-emacs-query-functions' instead.
2449 The hook is not run in batch mode, i.e., if `noninteractive' is non-nil. */);
2450 Vkill_emacs_hook
= Qnil
;
2452 DEFVAR_INT ("emacs-priority", &emacs_priority
,
2453 doc
: /* Priority for Emacs to run at.
2454 This value is effective only if set before Emacs is dumped,
2455 and only if the Emacs executable is installed with setuid to permit
2456 it to change priority. (Emacs sets its uid back to the real uid.)
2457 Currently, you need to define SET_EMACS_PRIORITY in `config.h'
2458 before you compile Emacs, to enable the code for this feature. */);
2461 DEFVAR_LISP ("path-separator", &Vpath_separator
,
2462 doc
: /* String containing the character that separates directories in
2463 search paths, such as PATH and other similar environment variables. */);
2466 Vpath_separator
= make_string (&c
, 1);
2469 DEFVAR_LISP ("invocation-name", &Vinvocation_name
,
2470 doc
: /* The program name that was used to run Emacs.
2471 Any directory names are omitted. */);
2473 DEFVAR_LISP ("invocation-directory", &Vinvocation_directory
,
2474 doc
: /* The directory in which the Emacs executable was found, to run it.
2475 The value is nil if that directory's name is not known. */);
2477 DEFVAR_LISP ("installation-directory", &Vinstallation_directory
,
2478 doc
: /* A directory within which to look for the `lib-src' and `etc' directories.
2479 This is non-nil when we can't find those directories in their standard
2480 installed locations, but we can find them near where the Emacs executable
2482 Vinstallation_directory
= Qnil
;
2484 DEFVAR_LISP ("system-messages-locale", &Vsystem_messages_locale
,
2485 doc
: /* System locale for messages. */);
2486 Vsystem_messages_locale
= Qnil
;
2488 DEFVAR_LISP ("previous-system-messages-locale",
2489 &Vprevious_system_messages_locale
,
2490 doc
: /* Most recently used system locale for messages. */);
2491 Vprevious_system_messages_locale
= Qnil
;
2493 DEFVAR_LISP ("system-time-locale", &Vsystem_time_locale
,
2494 doc
: /* System locale for time. */);
2495 Vsystem_time_locale
= Qnil
;
2497 DEFVAR_LISP ("previous-system-time-locale", &Vprevious_system_time_locale
,
2498 doc
: /* Most recently used system locale for time. */);
2499 Vprevious_system_time_locale
= Qnil
;
2502 /* arch-tag: 7bfd356a-c720-4612-8ab6-aa4222931c2e
2503 (do not change this comment) */