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 /* Save argv and argc. */
239 static void sort_args ();
240 void syms_of_emacs ();
242 /* MSVC needs each string be shorter than 2048 bytes, so the usage
243 strings below are split to not overflow this limit. */
245 Usage: %s [OPTION-OR-FILENAME]...\n\
247 Run Emacs, the extensible, customizable, self-documenting real-time\n\
248 display editor. The recommended way to start Emacs for normal editing\n\
249 is with no options at all.\n\
251 Run M-x info RET m emacs RET m emacs invocation RET inside Emacs to\n\
252 read the main documentation for these command-line arguments.\n\
254 Initialization options:\n\
256 --batch do not do interactive display; implies -q\n\
257 --debug-init enable Emacs Lisp debugger for init file\n\
258 --display, -d DISPLAY use X server DISPLAY\n\
259 --multibyte, --no-unibyte inhibit the effect of EMACS_UNIBYTE\n\
260 --no-desktop do not load a saved desktop\n\
261 --no-init-file, -q load neither ~/.emacs nor default.el\n\
262 --no-shared-memory, -nl do not use shared memory\n\
263 --no-site-file do not load site-start.el\n\
264 --no-splash do not display a splash screen on startup\n\
265 --no-window-system, -nw do not communicate with X, ignoring $DISPLAY\n\
266 --quick, -Q equivalent to -q --no-site-file --no-splash\n\
267 --script FILE run FILE as an Emacs Lisp script\n\
268 --terminal, -t DEVICE use DEVICE for terminal I/O\n\
269 --unibyte, --no-multibyte run Emacs in unibyte mode\n\
270 --user, -u USER load ~USER/.emacs instead of your own\n\
276 FILE visit FILE using find-file\n\
277 +LINE go to line LINE in next FILE\n\
278 +LINE:COLUMN go to line LINE, column COLUMN, in next FILE\n\
279 --directory, -L DIR add DIR to variable load-path\n\
280 --eval EXPR evaluate Emacs Lisp expression EXPR\n\
281 --execute EXPR evaluate Emacs Lisp expression EXPR\n\
282 --file FILE visit FILE using find-file\n\
283 --find-file FILE visit FILE using find-file\n\
284 --funcall, -f FUNC call Emacs Lisp function FUNC with no arguments\n\
285 --insert FILE insert contents of FILE into current buffer\n\
286 --kill exit without asking for confirmation\n\
287 --load, -l FILE load Emacs Lisp FILE using the load function\n\
288 --visit FILE visit FILE using find-file\n\
294 --background-color, -bg COLOR window background color\n\
295 --basic-display, -D disable many display features;\n\
296 used for debugging Emacs\n\
297 --border-color, -bd COLOR main border color\n\
298 --border-width, -bw WIDTH width of main border\n\
299 --color, --color=MODE override color mode for character terminals;\n\
300 MODE defaults to `auto', and can also\n\
301 be `never', `auto', `always',\n\
302 or a mode name like `ansi8'\n\
303 --cursor-color, -cr COLOR color of the Emacs cursor indicating point\n\
304 --font, -fn FONT default font; must be fixed-width\n\
305 --foreground-color, -fg COLOR window foreground color\n\
306 --fullheight, -fh make the first frame high as the screen\n\
307 --fullscreen, -fs make first frame fullscreen\n\
308 --fullwidth, -fw make the first frame wide as the screen\n\
309 --geometry, -g GEOMETRY window geometry\n\
310 --no-bitmap-icon, -nbi do not use picture of gnu for Emacs icon\n\
311 --iconic start Emacs in iconified state\n\
312 --internal-border, -ib WIDTH width between text and main border\n\
313 --line-spacing, -lsp PIXELS additional space to put between lines\n\
314 --mouse-color, -ms COLOR mouse cursor color in Emacs window\n\
315 --name NAME title for initial Emacs frame\n\
316 --no-blinking-cursor, -nbc disable blinking cursor\n\
317 --reverse-video, -r, -rv switch foreground and background\n\
318 --title, -T TITLE title for initial Emacs frame\n\
319 --vertical-scroll-bars, -vb enable vertical scroll bars\n\
320 --xrm XRESOURCES set additional X resources\n\
321 --parent-id XID set parent window\n\
322 --help display this help and exit\n\
323 --version output version information and exit\n\
327 You can generally also specify long option names with a single -; for\n\
328 example, -batch as well as --batch. You can use any unambiguous\n\
329 abbreviation for a --option.\n\
331 Various environment variables and window system resources also affect\n\
332 Emacs' operation. See the main documentation.\n\
334 Report bugs to %s. First, please see the Bugs\n\
335 section of the Emacs manual or the file BUGS.\n"
338 /* Signal code for the fatal signal that was received. */
339 int fatal_error_code
;
341 /* Nonzero if handling a fatal error already. */
342 int fatal_error_in_progress
;
344 /* If non-null, call this function from fatal_error_signal before
345 committing suicide. */
347 void (*fatal_error_signal_hook
) P_ ((void));
349 #ifdef FORWARD_SIGNAL_TO_MAIN_THREAD
350 /* When compiled with GTK and running under Gnome,
351 multiple threads may be created. Keep track of our main
352 thread to make sure signals are delivered to it (see syssignal.h). */
354 pthread_t main_thread
;
358 /* Handle bus errors, invalid instruction, etc. */
360 fatal_error_signal (sig
)
363 SIGNAL_THREAD_CHECK (sig
);
364 fatal_error_code
= sig
;
365 signal (sig
, SIG_DFL
);
367 TOTALLY_UNBLOCK_INPUT
;
369 /* If fatal error occurs in code below, avoid infinite recursion. */
370 if (! fatal_error_in_progress
)
372 fatal_error_in_progress
= 1;
374 shut_down_emacs (sig
, 0, Qnil
);
377 /* Signal the same code; this time it will really be fatal.
378 Remember that since we're in a signal handler, the signal we're
379 going to send is probably blocked, so we have to unblock it if we
380 want to really receive it. */
382 sigunblock (sigmask (fatal_error_code
));
385 if (fatal_error_signal_hook
)
386 fatal_error_signal_hook ();
388 kill (getpid (), fatal_error_code
);
393 /* Handler for SIGDANGER. */
395 memory_warning_signal (sig
)
398 signal (sig
, memory_warning_signal
);
399 SIGNAL_THREAD_CHECK (sig
);
401 malloc_warning ("Operating system warns that virtual memory is running low.\n");
403 /* It might be unsafe to call do_auto_save now. */
404 force_auto_save_soon ();
408 /* We define abort, rather than using it from the library,
409 so that GDB can return from a breakpoint here.
410 MSDOS has its own definition in msdos.c. */
412 #if ! defined (DOS_NT) && ! defined (NO_ABORT)
417 kill (getpid (), SIGABRT
);
418 /* This shouldn't be executed, but it prevents a warning. */
424 /* Code for dealing with Lisp access to the Unix command line. */
427 init_cmdargs (argc
, argv
, skip_args
)
433 Lisp_Object name
, dir
, tem
;
434 int count
= SPECPDL_INDEX ();
435 Lisp_Object raw_name
;
440 raw_name
= build_string (argv
[0]);
442 /* Add /: to the front of the name
443 if it would otherwise be treated as magic. */
444 tem
= Ffind_file_name_handler (raw_name
, Qt
);
446 raw_name
= concat2 (build_string ("/:"), raw_name
);
448 Vinvocation_name
= Ffile_name_nondirectory (raw_name
);
449 Vinvocation_directory
= Ffile_name_directory (raw_name
);
451 /* If we got no directory in argv[0], search PATH to find where
452 Emacs actually came from. */
453 if (NILP (Vinvocation_directory
))
456 int yes
= openp (Vexec_path
, Vinvocation_name
,
457 Vexec_suffixes
, &found
, make_number (X_OK
));
460 /* Add /: to the front of the name
461 if it would otherwise be treated as magic. */
462 tem
= Ffind_file_name_handler (found
, Qt
);
464 found
= concat2 (build_string ("/:"), found
);
465 Vinvocation_directory
= Ffile_name_directory (found
);
469 if (!NILP (Vinvocation_directory
)
470 && NILP (Ffile_name_absolute_p (Vinvocation_directory
)))
471 /* Emacs was started with relative path, like ./emacs.
473 Vinvocation_directory
= Fexpand_file_name (Vinvocation_directory
, Qnil
);
475 Vinstallation_directory
= Qnil
;
477 if (!NILP (Vinvocation_directory
))
479 dir
= Vinvocation_directory
;
480 name
= Fexpand_file_name (Vinvocation_name
, dir
);
483 Lisp_Object tem
, lib_src_exists
;
484 Lisp_Object etc_exists
, info_exists
;
486 /* See if dir contains subdirs for use by Emacs.
487 Check for the ones that would exist in a build directory,
488 not including lisp and info. */
489 tem
= Fexpand_file_name (build_string ("lib-src"), dir
);
490 lib_src_exists
= Ffile_exists_p (tem
);
493 /* MSDOS installations frequently remove lib-src, but we still
494 must set installation-directory, or else info won't find
495 its files (it uses the value of installation-directory). */
496 tem
= Fexpand_file_name (build_string ("info"), dir
);
497 info_exists
= Ffile_exists_p (tem
);
502 if (!NILP (lib_src_exists
) || !NILP (info_exists
))
504 tem
= Fexpand_file_name (build_string ("etc"), dir
);
505 etc_exists
= Ffile_exists_p (tem
);
506 if (!NILP (etc_exists
))
508 Vinstallation_directory
509 = Ffile_name_as_directory (dir
);
514 /* See if dir's parent contains those subdirs. */
515 tem
= Fexpand_file_name (build_string ("../lib-src"), dir
);
516 lib_src_exists
= Ffile_exists_p (tem
);
520 /* See the MSDOS commentary above. */
521 tem
= Fexpand_file_name (build_string ("../info"), dir
);
522 info_exists
= Ffile_exists_p (tem
);
527 if (!NILP (lib_src_exists
) || !NILP (info_exists
))
529 tem
= Fexpand_file_name (build_string ("../etc"), dir
);
530 etc_exists
= Ffile_exists_p (tem
);
531 if (!NILP (etc_exists
))
533 tem
= Fexpand_file_name (build_string (".."), dir
);
534 Vinstallation_directory
535 = Ffile_name_as_directory (tem
);
540 /* If the Emacs executable is actually a link,
541 next try the dir that the link points into. */
542 tem
= Ffile_symlink_p (name
);
545 name
= Fexpand_file_name (tem
, dir
);
546 dir
= Ffile_name_directory (name
);
553 Vcommand_line_args
= Qnil
;
555 for (i
= argc
- 1; i
>= 0; i
--)
557 if (i
== 0 || i
> skip_args
)
558 /* For the moment, we keep arguments as is in unibyte strings.
559 They are decoded in the function command-line after we know
560 locale-coding-system. */
562 = Fcons (make_unibyte_string (argv
[i
], strlen (argv
[i
])),
566 unbind_to (count
, Qnil
);
569 DEFUN ("invocation-name", Finvocation_name
, Sinvocation_name
, 0, 0, 0,
570 doc
: /* Return the program name that was used to run Emacs.
571 Any directory names are omitted. */)
574 return Fcopy_sequence (Vinvocation_name
);
577 DEFUN ("invocation-directory", Finvocation_directory
, Sinvocation_directory
,
579 doc
: /* Return the directory name in which the Emacs executable was located. */)
582 return Fcopy_sequence (Vinvocation_directory
);
587 /* A valid but unlikely value for the TZ environment value.
588 It is OK (though a bit slower) if the user actually chooses this value. */
589 static char dump_tz
[] = "UtC0";
592 #ifndef ORDINARY_LINK
593 /* We don't include crtbegin.o and crtend.o in the link,
594 so these functions and variables might be missed.
595 Provide dummy definitions to avoid error.
596 (We don't have any real constructors or destructors.) */
598 #ifndef GCC_CTORS_IN_LIBC
599 void __do_global_ctors ()
601 void __do_global_ctors_aux ()
603 void __do_global_dtors ()
605 /* GNU/Linux has a bug in its library; avoid an error. */
607 char * __CTOR_LIST__
[2] = { (char *) (-1), 0 };
609 char * __DTOR_LIST__
[2] = { (char *) (-1), 0 };
610 #endif /* GCC_CTORS_IN_LIBC */
613 #endif /* __GNUC__ */
614 #endif /* ORDINARY_LINK */
616 /* Test whether the next argument in ARGV matches SSTR or a prefix of
617 LSTR (at least MINLEN characters). If so, then if VALPTR is non-null
618 (the argument is supposed to have a value) store in *VALPTR either
619 the next argument or the portion of this one after the equal sign.
620 ARGV is read starting at position *SKIPPTR; this index is advanced
621 by the number of arguments used.
623 Too bad we can't just use getopt for all of this, but we don't have
624 enough information to do it right. */
627 argmatch (argv
, argc
, sstr
, lstr
, minlen
, valptr
, skipptr
)
640 /* Don't access argv[argc]; give up in advance. */
641 if (argc
<= *skipptr
+ 1)
644 arg
= argv
[*skipptr
+1];
647 if (strcmp (arg
, sstr
) == 0)
651 *valptr
= argv
[*skipptr
+2];
658 arglen
= (valptr
!= NULL
&& (p
= index (arg
, '=')) != NULL
659 ? p
- arg
: strlen (arg
));
660 if (lstr
== 0 || arglen
< minlen
|| strncmp (arg
, lstr
, arglen
) != 0)
662 else if (valptr
== NULL
)
673 else if (argv
[*skipptr
+2] != NULL
)
675 *valptr
= argv
[*skipptr
+2];
685 #ifdef DOUG_LEA_MALLOC
687 /* malloc can be invoked even before main (e.g. by the dynamic
688 linker), so the dumped malloc state must be restored as early as
689 possible using this special hook. */
692 malloc_initialize_hook ()
695 extern char **environ
;
700 if (!malloc_using_checking
)
701 /* Work around a bug in glibc's malloc. MALLOC_CHECK_ must be
702 ignored if the heap to be restored was constructed without
703 malloc checking. Can't use unsetenv, since that calls malloc. */
707 for (p
= environ
; p
&& *p
; p
++)
708 if (strncmp (*p
, "MALLOC_CHECK_=", 14) == 0)
717 malloc_set_state (malloc_state_ptr
);
718 #ifndef XMALLOC_OVERRUN_CHECK
719 free (malloc_state_ptr
);
724 if (my_heap_start
== 0)
725 my_heap_start
= sbrk (0);
726 malloc_using_checking
= getenv ("MALLOC_CHECK_") != NULL
;
730 void (*__malloc_initialize_hook
) () = malloc_initialize_hook
;
732 #endif /* DOUG_LEA_MALLOC */
735 #define REPORT_EMACS_BUG_ADDRESS "bug-gnu-emacs@gnu.org"
736 #define REPORT_EMACS_BUG_PRETEST_ADDRESS "emacs-pretest-bug@gnu.org"
738 /* This function is used to determine an address to which bug report should
742 bug_reporting_address ()
748 temp
= Fsymbol_value (intern ("emacs-version"));
750 /* When `emacs-version' is invalid, use normal address. */
752 return REPORT_EMACS_BUG_ADDRESS
;
754 string
= SDATA (temp
);
756 /* Count dots in `emacs-version'. */
764 /* When `emacs-version' has at least three dots, it is development or
765 pretest version of Emacs. */
766 return count
>= 3 ? REPORT_EMACS_BUG_PRETEST_ADDRESS
: REPORT_EMACS_BUG_ADDRESS
;
772 main (int argc
, char **argv
)
777 char stack_bottom_variable
;
778 int do_initial_setlocale
;
783 #ifdef HAVE_SETRLIMIT
790 extern Lisp_Object
*stack_base
;
796 extern char my_endbss
[];
797 extern char *my_endbss_static
;
799 if (my_heap_start
== 0)
800 my_heap_start
= sbrk (0);
802 heap_bss_diff
= (char *)my_heap_start
- max (my_endbss
, my_endbss_static
);
805 #ifdef LINUX_SBRK_BUG
806 /* This is only used GNU/LINUX running on alpha when using libc5 */
810 #ifdef RUN_TIME_REMAP
812 run_time_remap (argv
[0]);
815 #if defined (NS_IMPL_COCOA)
817 unexec_init_emacs_zone ();
820 sort_args (argc
, argv
);
822 while (argv
[argc
]) argc
++;
824 if (argmatch (argv
, argc
, "-version", "--version", 3, NULL
, &skip_args
)
825 /* We don't know the version number unless this is a dumped Emacs.
826 So ignore --version otherwise. */
829 Lisp_Object tem
, tem2
;
830 tem
= Fsymbol_value (intern ("emacs-version"));
831 tem2
= Fsymbol_value (intern ("emacs-copyright"));
834 fprintf (stderr
, "Invalid value of `emacs-version'\n");
839 fprintf (stderr
, "Invalid value of `emacs-copyright'\n");
844 printf ("GNU Emacs %s\n", SDATA (tem
));
845 printf ("%s\n", SDATA(tem2
));
846 printf ("GNU Emacs comes with ABSOLUTELY NO WARRANTY.\n");
847 printf ("You may redistribute copies of Emacs\n");
848 printf ("under the terms of the GNU General Public License.\n");
849 printf ("For more information about these matters, ");
850 printf ("see the file named COPYING.\n");
855 #ifdef HAVE_PERSONALITY_LINUX32
856 /* See if there is a gap between the end of BSS and the heap.
857 In that case, set personality and exec ourself again. */
859 && (strcmp (argv
[argc
-1], "dump") == 0
860 || strcmp (argv
[argc
-1], "bootstrap") == 0)
861 && heap_bss_diff
> MAX_HEAP_BSS_DIFF
)
863 if (! getenv ("EMACS_HEAP_EXEC"))
865 /* Set this so we only do this once. */
866 putenv("EMACS_HEAP_EXEC=true");
868 /* A flag to turn off address randomization which is introduced
869 in linux kernel shipped with fedora core 4 */
870 #define ADD_NO_RANDOMIZE 0x0040000
871 personality (PER_LINUX32
| ADD_NO_RANDOMIZE
);
872 #undef ADD_NO_RANDOMIZE
874 execvp (argv
[0], argv
);
876 /* If the exec fails, try to dump anyway. */
880 #endif /* HAVE_PERSONALITY_LINUX32 */
883 /* Map in shared memory, if we are using that. */
885 if (argmatch (argv
, argc
, "-nl", "--no-shared-memory", 6, NULL
, &skip_args
))
888 /* The shared memory was just restored, which clobbered this. */
894 /* The shared memory was just restored, which clobbered this. */
899 #if defined (HAVE_SETRLIMIT) && defined (RLIMIT_STACK)
900 /* Extend the stack space available.
901 Don't do that if dumping, since some systems (e.g. DJGPP)
902 might define a smaller stack limit at that time. */
905 && (!noninteractive
|| initialized
)
907 && !getrlimit (RLIMIT_STACK
, &rlim
))
910 extern size_t re_max_failures
;
911 /* Approximate the amount regex.c needs per unit of re_max_failures. */
912 int ratio
= 20 * sizeof (char *);
913 /* Then add 33% to cover the size of the smaller stacks that regex.c
914 successively allocates and discards, on its way to the maximum. */
916 /* Add in some extra to cover
917 what we're likely to use for other reasons. */
918 newlim
= re_max_failures
* ratio
+ 200000;
920 /* NetBSD (at least NetBSD 1.2G and former) has a bug in its
921 stack allocation routine for new process that the allocation
922 fails if stack limit is not on page boundary. So, round up the
923 new limit to page boundary. */
924 newlim
= (newlim
+ getpagesize () - 1) / getpagesize () * getpagesize();
926 if (newlim
> rlim
.rlim_max
)
928 newlim
= rlim
.rlim_max
;
929 /* Don't let regex.c overflow the stack we have. */
930 re_max_failures
= (newlim
- 200000) / ratio
;
932 if (rlim
.rlim_cur
< newlim
)
933 rlim
.rlim_cur
= newlim
;
935 setrlimit (RLIMIT_STACK
, &rlim
);
937 #endif /* HAVE_SETRLIMIT and RLIMIT_STACK */
939 /* Record (approximately) where the stack begins. */
940 stack_bottom
= &stack_bottom_variable
;
944 #ifndef SYSTEM_MALLOC
945 /* Arrange to get warning messages as memory fills up. */
946 memory_warnings (0, malloc_warning
);
948 /* Call malloc at least once, to run the initial __malloc_hook.
949 Also call realloc and free for consistency. */
950 free (realloc (malloc (4), 4));
953 /* Arrange to disable interrupt input inside malloc etc. */
954 uninterrupt_malloc ();
955 # endif /* not SYNC_INPUT */
956 #endif /* not SYSTEM_MALLOC */
958 #ifdef FORWARD_SIGNAL_TO_MAIN_THREAD
959 main_thread
= pthread_self ();
960 #endif /* FORWARD_SIGNAL_TO_MAIN_THREAD */
962 #if defined (MSDOS) || defined (WINDOWSNT)
963 /* We do all file input/output as binary files. When we need to translate
964 newlines, we do that manually. */
966 #endif /* MSDOS || WINDOWSNT */
970 if (!isatty (fileno (stdin
)))
971 setmode (fileno (stdin
), O_BINARY
);
972 if (!isatty (fileno (stdout
)))
975 setmode (fileno (stdout
), O_BINARY
);
977 #else /* not __DJGPP__ >= 2 */
978 (stdin
)->_flag
&= ~_IOTEXT
;
979 (stdout
)->_flag
&= ~_IOTEXT
;
980 (stderr
)->_flag
&= ~_IOTEXT
;
981 #endif /* not __DJGPP__ >= 2 */
984 #ifdef SET_EMACS_PRIORITY
986 nice (emacs_priority
);
988 #endif /* SET_EMACS_PRIORITY */
990 /* Skip initial setlocale if LC_ALL is "C", as it's not needed in that case.
991 The build procedure uses this while dumping, to ensure that the
992 dumped Emacs does not have its system locale tables initialized,
993 as that might cause screwups when the dumped Emacs starts up. */
995 char *lc_all
= getenv ("LC_ALL");
996 do_initial_setlocale
= ! lc_all
|| strcmp (lc_all
, "C");
999 /* Set locale now, so that initial error messages are localized properly.
1000 fixup_locale must wait until later, since it builds strings. */
1001 if (do_initial_setlocale
)
1002 setlocale (LC_ALL
, "");
1004 inhibit_window_system
= 0;
1006 /* Handle the -t switch, which specifies filename to use as terminal. */
1010 if (argmatch (argv
, argc
, "-t", "--terminal", 4, &term
, &skip_args
))
1015 result
= emacs_open (term
, O_RDWR
, 0);
1018 char *errstring
= strerror (errno
);
1019 fprintf (stderr
, "%s: %s: %s\n", argv
[0], term
, errstring
);
1025 fprintf (stderr
, "%s: %s: not a tty\n", argv
[0], term
);
1028 fprintf (stderr
, "Using %s\n", term
);
1029 #ifdef HAVE_WINDOW_SYSTEM
1030 inhibit_window_system
= 1; /* -t => -nw */
1037 /* Command line option --no-windows is deprecated and thus not mentioned
1038 in the manual and usage informations. */
1039 if (argmatch (argv
, argc
, "-nw", "--no-window-system", 6, NULL
, &skip_args
)
1040 || argmatch (argv
, argc
, "-nw", "--no-windows", 6, NULL
, &skip_args
))
1041 inhibit_window_system
= 1;
1043 /* Handle the -batch switch, which means don't do interactive display. */
1045 if (argmatch (argv
, argc
, "-batch", "--batch", 5, NULL
, &skip_args
))
1048 Vundo_outer_limit
= Qnil
;
1050 if (argmatch (argv
, argc
, "-script", "--script", 3, &junk
, &skip_args
))
1052 noninteractive
= 1; /* Set batch mode. */
1053 /* Convert --script to -scriptload, un-skip it, and sort again
1054 so that it will be handled in proper sequence. */
1055 /* FIXME broken for --script=FILE - is that supposed to work? */
1056 argv
[skip_args
- 1] = "-scriptload";
1058 sort_args (argc
, argv
);
1061 /* Handle the --help option, which gives a usage message. */
1062 if (argmatch (argv
, argc
, "-help", "--help", 3, NULL
, &skip_args
))
1064 printf (USAGE1
, argv
[0], USAGE2
);
1066 printf (USAGE4
, bug_reporting_address ());
1070 if (! noninteractive
)
1075 inherited_pgroup
= EMACS_GETPGRP (0);
1076 setpgrp (0, getpid ());
1079 #if defined (USG5) && defined (INTERRUPT_INPUT)
1083 #if defined (HAVE_GTK_AND_PTHREAD) && !defined (SYSTEM_MALLOC) && !defined (DOUG_LEA_MALLOC)
1085 extern void malloc_enable_thread
P_ ((void));
1087 malloc_enable_thread ();
1094 /* Don't catch SIGHUP if dumping. */
1101 sigblock (sigmask (SIGHUP
));
1102 /* In --batch mode, don't catch SIGHUP if already ignored.
1103 That makes nohup work. */
1104 if (! noninteractive
1105 || signal (SIGHUP
, SIG_IGN
) != SIG_IGN
)
1106 signal (SIGHUP
, fatal_error_signal
);
1107 sigunblock (sigmask (SIGHUP
));
1112 ! noninteractive
|| initialized
1118 /* Don't catch these signals in batch mode if dumping.
1119 On some machines, this sets static data that would make
1120 signal fail to work right when the dumped Emacs is run. */
1121 signal (SIGQUIT
, fatal_error_signal
);
1122 signal (SIGILL
, fatal_error_signal
);
1123 signal (SIGTRAP
, fatal_error_signal
);
1125 add_user_signal (SIGUSR1
, "sigusr1");
1128 add_user_signal (SIGUSR2
, "sigusr2");
1131 signal (SIGABRT
, fatal_error_signal
);
1134 signal (SIGHWE
, fatal_error_signal
);
1137 signal (SIGPRE
, fatal_error_signal
);
1140 signal (SIGORE
, fatal_error_signal
);
1143 signal (SIGUME
, fatal_error_signal
);
1146 signal (SIGDLK
, fatal_error_signal
);
1149 signal (SIGCPULIM
, fatal_error_signal
);
1152 /* This is missing on some systems - OS/2, for example. */
1153 signal (SIGIOT
, fatal_error_signal
);
1156 signal (SIGEMT
, fatal_error_signal
);
1158 signal (SIGFPE
, fatal_error_signal
);
1160 signal (SIGBUS
, fatal_error_signal
);
1162 signal (SIGSEGV
, fatal_error_signal
);
1164 signal (SIGSYS
, fatal_error_signal
);
1166 signal (SIGTERM
, fatal_error_signal
);
1168 signal (SIGXCPU
, fatal_error_signal
);
1171 signal (SIGXFSZ
, fatal_error_signal
);
1172 #endif /* SIGXFSZ */
1175 /* This just means available memory is getting low. */
1176 signal (SIGDANGER
, memory_warning_signal
);
1180 /* 20 is SIGCHLD, 21 is SIGTTIN, 22 is SIGTTOU. */
1181 signal (SIGXCPU
, fatal_error_signal
);
1183 signal (SIGIOINT
, fatal_error_signal
);
1185 signal (SIGGRANT
, fatal_error_signal
);
1186 signal (SIGRETRACT
, fatal_error_signal
);
1187 signal (SIGSOUND
, fatal_error_signal
);
1188 signal (SIGMSG
, fatal_error_signal
);
1192 noninteractive1
= noninteractive
;
1194 /* Perform basic initializations (not merely interning symbols). */
1201 init_character_once ();
1202 init_charset_once ();
1203 init_coding_once ();
1204 init_syntax_once (); /* Create standard syntax table. */
1205 init_category_once (); /* Create standard category table. */
1206 /* Must be done before init_buffer. */
1207 init_casetab_once ();
1208 init_buffer_once (); /* Create buffer table and some buffers. */
1209 init_minibuf_once (); /* Create list of minibuffers. */
1210 /* Must precede init_window_once. */
1212 /* Call syms_of_xfaces before init_window_once because that
1213 function creates Vterminal_frame. Termcap frames now use
1214 faces, and the face implementation uses some symbols as
1217 /* XXX syms_of_keyboard uses some symbols in keymap.c. It would
1218 be better to arrange things not to have this dependency. */
1220 /* Call syms_of_keyboard before init_window_once because
1221 keyboard sets up symbols that include some face names that
1222 the X support will want to use. This can happen when
1223 CANNOT_DUMP is defined. */
1224 syms_of_keyboard ();
1226 /* Called before syms_of_fileio, because it sets up Qerror_condition. */
1229 /* Before syms_of_coding to initialize Vgc_cons_threshold. */
1231 /* Before syms_of_coding because it initializes Qcharsetp. */
1233 /* Before init_window_once, because it sets up the
1234 Vcoding_system_hash_table. */
1235 syms_of_coding (); /* This should be after syms_of_fileio. */
1237 init_window_once (); /* Init the window system. */
1238 init_fileio_once (); /* Must precede any path manipulation. */
1239 #ifdef HAVE_WINDOW_SYSTEM
1240 init_fringe_once (); /* Swap bitmaps if necessary. */
1241 #endif /* HAVE_WINDOW_SYSTEM */
1246 if (do_initial_setlocale
)
1249 Vsystem_messages_locale
= Vprevious_system_messages_locale
;
1250 Vsystem_time_locale
= Vprevious_system_time_locale
;
1255 #ifdef CLASH_DETECTION
1259 running_asynch_code
= 0;
1261 /* Handle --unibyte and the EMACS_UNIBYTE envvar,
1262 but not while dumping. */
1265 int inhibit_unibyte
= 0;
1267 /* --multibyte overrides EMACS_UNIBYTE. */
1268 if (argmatch (argv
, argc
, "-no-unibyte", "--no-unibyte", 4, NULL
, &skip_args
)
1269 || argmatch (argv
, argc
, "-multibyte", "--multibyte", 4, NULL
, &skip_args
)
1270 /* Ignore EMACS_UNIBYTE before dumping. */
1271 || (!initialized
&& noninteractive
))
1272 inhibit_unibyte
= 1;
1274 /* --unibyte requests that we set up to do everything with single-byte
1275 buffers and strings. We need to handle this before calling
1276 init_lread, init_editfns and other places that generate Lisp strings
1277 from text in the environment. */
1278 /* Actually this shouldn't be needed as of 20.4 in a generally
1279 unibyte environment. As handa says, environment values
1280 aren't now decoded; also existing buffers are now made
1281 unibyte during startup if .emacs sets unibyte. Tested with
1282 8-bit data in environment variables and /etc/passwd, setting
1283 unibyte and Latin-1 in .emacs. -- Dave Love */
1284 if (argmatch (argv
, argc
, "-unibyte", "--unibyte", 4, NULL
, &skip_args
)
1285 || argmatch (argv
, argc
, "-no-multibyte", "--no-multibyte", 4, NULL
, &skip_args
)
1286 || (getenv ("EMACS_UNIBYTE") && !inhibit_unibyte
))
1288 Lisp_Object old_log_max
;
1289 Lisp_Object symbol
, tail
;
1291 symbol
= intern ("default-enable-multibyte-characters");
1292 Fset (symbol
, Qnil
);
1296 /* Erase pre-dump messages in *Messages* now so no abort. */
1297 old_log_max
= Vmessage_log_max
;
1298 XSETFASTINT (Vmessage_log_max
, 0);
1299 message_dolog ("", 0, 1, 0);
1300 Vmessage_log_max
= old_log_max
;
1303 for (tail
= Vbuffer_alist
; CONSP (tail
);
1308 buffer
= Fcdr (XCAR (tail
));
1309 /* Make a multibyte buffer unibyte. */
1310 if (BUF_Z_BYTE (XBUFFER (buffer
)) > BUF_Z (XBUFFER (buffer
)))
1312 struct buffer
*current
= current_buffer
;
1314 set_buffer_temp (XBUFFER (buffer
));
1315 Fset_buffer_multibyte (Qnil
);
1316 set_buffer_temp (current
);
1323 = argmatch (argv
, argc
, "-nl", "--no-loadup", 6, NULL
, &skip_args
);
1326 ns_alloc_autorelease_pool();
1327 if (!noninteractive
)
1331 #ifdef NS_IMPL_COCOA
1332 if (skip_args
< argc
)
1334 if (!strncmp(argv
[skip_args
], "-psn", 4))
1340 if (skip_args
+1 < argc
&& !strncmp(argv
[skip_args
+1], "-psn", 4))
1345 /* This used for remote operation.. not fully implemented yet. */
1346 if (argmatch (argv
, argc
, "-_NSMachLaunch", 0, 3, &tmp
, &skip_args
))
1348 else if (argmatch (argv
, argc
, "-MachLaunch", 0, 3, &tmp
, &skip_args
))
1350 else if (argmatch (argv
, argc
, "-macosx", 0, 2, NULL
, &skip_args
))
1352 else if (argmatch (argv
, argc
, "-NSHost", 0, 3, &tmp
, &skip_args
))
1355 #endif /* HAVE_NS */
1357 #ifdef HAVE_X_WINDOWS
1358 /* Stupid kludge to catch command-line display spec. We can't
1359 handle this argument entirely in window system dependent code
1360 because we don't even know which window system dependent code
1361 to run until we've recognized this argument. */
1363 char *displayname
= 0;
1364 int count_before
= skip_args
;
1366 /* Skip any number of -d options, but only use the last one. */
1369 int count_before_this
= skip_args
;
1371 if (argmatch (argv
, argc
, "-d", "--display", 3, &displayname
, &skip_args
))
1373 else if (argmatch (argv
, argc
, "-display", 0, 3, &displayname
, &skip_args
))
1378 count_before
= count_before_this
;
1381 /* If we have the form --display=NAME,
1382 convert it into -d name.
1383 This requires inserting a new element into argv. */
1384 if (displayname
!= 0 && skip_args
- count_before
== 1)
1386 char **new = (char **) xmalloc (sizeof (char *) * (argc
+ 2));
1389 for (j
= 0; j
< count_before
+ 1; j
++)
1391 new[count_before
+ 1] = "-d";
1392 new[count_before
+ 2] = displayname
;
1393 for (j
= count_before
+ 2; j
<argc
; j
++)
1394 new[j
+ 1] = argv
[j
];
1398 /* Change --display to -d, when its arg is separate. */
1399 else if (displayname
!= 0 && skip_args
> count_before
1400 && argv
[count_before
+ 1][1] == '-')
1401 argv
[count_before
+ 1] = "-d";
1403 /* Don't actually discard this arg. */
1404 skip_args
= count_before
;
1408 /* argmatch must not be used after here,
1409 except when bulding temacs
1410 because the -d argument has not been skipped in skip_args. */
1413 /* Call early 'cause init_environment needs it. */
1415 /* Set defaults for several environment variables. */
1417 init_environment (argc
, argv
, skip_args
);
1424 /* Initialize environment from registry settings. */
1425 init_environment (argv
);
1426 init_ntproc (); /* must precede init_editfns. */
1436 /* egetenv is a pretty low-level facility, which may get called in
1437 many circumstances; it seems flimsy to put off initializing it
1438 until calling init_callproc. */
1439 set_initial_environment ();
1440 /* AIX crashes are reported in system versions 3.2.3 and 3.2.4
1441 if this is not done. Do it after set_global_environment so that we
1442 don't pollute Vglobal_environment. */
1443 /* Setting LANG here will defeat the startup locale processing... */
1448 init_buffer (); /* Init default directory of main buffer. */
1450 init_callproc_1 (); /* Must precede init_cmdargs and init_sys_modes. */
1451 init_cmdargs (argc
, argv
, skip_args
); /* Must precede init_lread. */
1455 /* Erase any pre-dump messages in the message log, to avoid confusion. */
1456 Lisp_Object old_log_max
;
1457 old_log_max
= Vmessage_log_max
;
1458 XSETFASTINT (Vmessage_log_max
, 0);
1459 message_dolog ("", 0, 1, 0);
1460 Vmessage_log_max
= old_log_max
;
1463 init_callproc (); /* Must follow init_cmdargs but not init_sys_modes. */
1466 /* Intern the names of all standard functions and variables;
1467 define standard keys. */
1471 /* The basic levels of Lisp must come first. */
1472 /* And data must come first of all
1473 for the sake of symbols like error-message. */
1480 syms_of_floatfns ();
1483 syms_of_bytecode ();
1485 syms_of_casefiddle ();
1487 syms_of_callproc ();
1488 syms_of_category ();
1490 syms_of_character ();
1492 #ifndef NO_DIR_LIBRARY
1494 #endif /* not NO_DIR_LIBRARY */
1499 #ifdef CLASH_DETECTION
1500 syms_of_filelock ();
1501 #endif /* CLASH_DETECTION */
1504 /* syms_of_keymap (); */
1512 syms_of_terminal ();
1518 syms_of_textprop ();
1519 syms_of_composite ();
1522 #endif /* WINDOWSNT */
1526 #ifdef HAVE_WINDOW_SYSTEM
1529 #endif /* HAVE_WINDOW_SYSTEM */
1530 #ifdef HAVE_X_WINDOWS
1541 #endif /* HAVE_X_WINDOWS */
1548 syms_of_w32select ();
1551 #endif /* HAVE_NTGUI */
1557 syms_of_nsselect ();
1559 #endif /* HAVE_NS */
1562 syms_of_dbusbind ();
1563 #endif /* HAVE_DBUS */
1573 keys_of_casefiddle ();
1576 keys_of_keyboard ();
1582 /* Initialization that must be done even if the global variable
1583 initialized is non zero. */
1585 globals_of_w32fns ();
1586 globals_of_w32menu ();
1587 globals_of_w32select ();
1588 #endif /* HAVE_NTGUI */
1593 init_editfns (); /* init_process uses Voperating_system_release. */
1594 init_process (); /* init_display uses add_keyboard_wait_descriptor. */
1595 init_keyboard (); /* This too must precede init_sys_modes. */
1596 if (!noninteractive
)
1597 init_display (); /* Determine terminal type. Calls init_sys_modes. */
1600 #ifdef HAVE_WINDOW_SYSTEM
1603 #endif /* HAVE_WINDOW_SYSTEM */
1614 /* Handle -l loadup, args passed by Makefile. */
1615 if (argmatch (argv
, argc
, "-l", "--load", 3, &file
, &skip_args
))
1616 Vtop_level
= Fcons (intern ("load"),
1617 Fcons (build_string (file
), Qnil
));
1618 /* Unless next switch is -nl, load "loadup.el" first thing. */
1620 Vtop_level
= Fcons (intern ("load"),
1621 Fcons (build_string ("loadup.el"), Qnil
));
1628 /* If the execution TZ happens to be the same as the dump TZ,
1629 change it to some other value and then change it back,
1630 to force the underlying implementation to reload the TZ info.
1631 This is needed on implementations that load TZ info from files,
1632 since the TZ file contents may differ between dump and execution. */
1633 char *tz
= getenv ("TZ");
1634 if (tz
&& !strcmp (tz
, dump_tz
))
1644 /* Set up for profiling. This is known to work on FreeBSD,
1645 GNU/Linux and MinGW. It might work on some other systems too.
1646 Give it a try and tell us if it works on your system. To compile
1647 for profiling, add -pg to the switches your platform uses in
1648 CFLAGS and LDFLAGS. For example:
1649 `make CFLAGS="-pg -g -O -DPROFILING=1" LDFLAGS="-pg -g"'. */
1650 #if defined (__FreeBSD__) || defined (GNU_LINUX) || defined(__MINGW32__)
1654 extern void _mcleanup ();
1656 extern unsigned char etext
asm ("etext");
1660 extern void safe_bcopy ();
1661 extern void dump_opcode_frequencies ();
1664 /* This uses safe_bcopy because that function comes first in the
1665 Emacs executable. It might be better to use something that
1666 gives the start of the text segment, but start_of_text is not
1667 defined on all systems now. */
1668 monstartup (safe_bcopy
, &etext
);
1677 #ifdef LOCALTIME_CACHE
1678 /* Some versions of localtime have a bug. They cache the value of the time
1679 zone rather than looking it up every time. Since localtime() is
1680 called to bolt the undumping time into the undumped emacs, this
1681 results in localtime ignoring the TZ environment variable.
1682 This flushes the new TZ value into localtime. */
1684 #endif /* defined (LOCALTIME_CACHE) */
1686 /* Enter editor command loop. This never returns. */
1692 /* Sort the args so we can find the most important ones
1693 at the beginning of argv. */
1695 /* First, here's a table of all the standard options. */
1697 struct standard_args
1705 struct standard_args standard_args
[] =
1707 { "-version", "--version", 150, 0 },
1709 { "-nl", "--no-shared-memory", 140, 0 },
1711 { "-t", "--terminal", 120, 1 },
1712 { "-nw", "--no-window-system", 110, 0 },
1713 { "-nw", "--no-windows", 110, 0 },
1714 { "-batch", "--batch", 100, 0 },
1715 { "-script", "--script", 100, 1 },
1716 { "-help", "--help", 90, 0 },
1717 { "-no-unibyte", "--no-unibyte", 83, 0 },
1718 { "-multibyte", "--multibyte", 82, 0 },
1719 { "-unibyte", "--unibyte", 81, 0 },
1720 { "-no-multibyte", "--no-multibyte", 80, 0 },
1721 { "-nl", "--no-loadup", 70, 0 },
1722 /* -d must come last before the options handled in startup.el. */
1723 { "-d", "--display", 60, 1 },
1724 { "-display", 0, 60, 1 },
1725 /* Now for the options handled in startup.el. */
1726 { "-Q", "--quick", 55, 0 },
1727 { "-quick", 0, 55, 0 },
1728 { "-q", "--no-init-file", 50, 0 },
1729 { "-no-init-file", 0, 50, 0 },
1730 { "-no-site-file", "--no-site-file", 40, 0 },
1731 { "-u", "--user", 30, 1 },
1732 { "-user", 0, 30, 1 },
1733 { "-debug-init", "--debug-init", 20, 0 },
1734 { "-nbi", "--no-bitmap-icon", 15, 0 },
1735 { "-iconic", "--iconic", 15, 0 },
1736 { "-D", "--basic-display", 12, 0},
1737 { "-basic-display", 0, 12, 0},
1738 { "-bg", "--background-color", 10, 1 },
1739 { "-background", 0, 10, 1 },
1740 { "-fg", "--foreground-color", 10, 1 },
1741 { "-foreground", 0, 10, 1 },
1742 { "-bd", "--border-color", 10, 1 },
1743 { "-bw", "--border-width", 10, 1 },
1744 { "-ib", "--internal-border", 10, 1 },
1745 { "-ms", "--mouse-color", 10, 1 },
1746 { "-cr", "--cursor-color", 10, 1 },
1747 { "-nbc", "--no-blinking-cursor", 10, 0 },
1748 { "-fn", "--font", 10, 1 },
1749 { "-font", 0, 10, 1 },
1750 { "-fs", "--fullscreen", 10, 0 },
1751 { "-fw", "--fullwidth", 10, 0 },
1752 { "-fh", "--fullheight", 10, 0 },
1753 { "-g", "--geometry", 10, 1 },
1754 { "-geometry", 0, 10, 1 },
1755 { "-T", "--title", 10, 1 },
1756 { "-title", 0, 10, 1 },
1757 { "-name", "--name", 10, 1 },
1758 { "-xrm", "--xrm", 10, 1 },
1759 { "-parent-id", "--parent-id", 10, 1 },
1760 { "-r", "--reverse-video", 5, 0 },
1762 { "-reverse", 0, 5, 0 },
1763 { "-hb", "--horizontal-scroll-bars", 5, 0 },
1764 { "-vb", "--vertical-scroll-bars", 5, 0 },
1765 { "-color", "--color", 5, 0},
1766 { "-no-splash", "--no-splash", 3, 0 },
1767 { "-no-desktop", "--no-desktop", 3, 0 },
1769 { "-NSAutoLaunch", 0, 5, 1 },
1770 { "-NXAutoLaunch", 0, 5, 1 },
1771 { "-disable-font-backend", "--disable-font-backend", 65, 0 },
1772 { "-_NSMachLaunch", 0, 85, 1 },
1773 { "-MachLaunch", 0, 85, 1 },
1774 { "-macosx", 0, 85, 0 },
1775 { "-NSHost", 0, 85, 1 },
1777 /* These have the same priority as ordinary file name args,
1778 so they are not reordered with respect to those. */
1779 { "-L", "--directory", 0, 1 },
1780 { "-directory", 0, 0, 1 },
1781 { "-l", "--load", 0, 1 },
1782 { "-load", 0, 0, 1 },
1783 /* This has no longname, because using --scriptload confuses sort_args,
1784 because then the --script long option seems to match twice; ie
1785 you can't have a long option which is a prefix of another long
1786 option. In any case, this is entirely an internal option. */
1787 { "-scriptload", NULL
, 0, 1 },
1788 { "-f", "--funcall", 0, 1 },
1789 { "-funcall", 0, 0, 1 },
1790 { "-eval", "--eval", 0, 1 },
1791 { "-execute", "--execute", 0, 1 },
1792 { "-find-file", "--find-file", 0, 1 },
1793 { "-visit", "--visit", 0, 1 },
1794 { "-file", "--file", 0, 1 },
1795 { "-insert", "--insert", 0, 1 },
1797 { "-NXOpen", 0, 0, 1 },
1798 { "-NXOpenTemp", 0, 0, 1 },
1799 { "-NSOpen", 0, 0, 1 },
1800 { "-NSOpenTemp", 0, 0, 1 },
1801 { "-GSFilePath", 0, 0, 1 },
1803 /* This should be processed after ordinary file name args and the like. */
1804 { "-kill", "--kill", -10, 0 },
1807 /* Reorder the elements of ARGV (assumed to have ARGC elements)
1808 so that the highest priority ones come first.
1809 Do not change the order of elements of equal priority.
1810 If an option takes an argument, keep it and its argument together.
1812 If an option that takes no argument appears more
1813 than once, eliminate all but one copy of it. */
1816 sort_args (argc
, argv
)
1820 char **new = (char **) xmalloc (sizeof (char *) * argc
);
1821 /* For each element of argv,
1822 the corresponding element of options is:
1823 0 for an option that takes no arguments,
1824 1 for an option that takes one argument, etc.
1825 -1 for an ordinary non-option argument. */
1826 int *options
= (int *) xmalloc (sizeof (int) * argc
);
1827 int *priority
= (int *) xmalloc (sizeof (int) * argc
);
1829 int incoming_used
= 1;
1833 /* Categorize all the options,
1834 and figure out which argv elts are option arguments. */
1835 for (from
= 1; from
< argc
; from
++)
1839 if (argv
[from
][0] == '-')
1844 /* If we have found "--", don't consider
1845 any more arguments as options. */
1846 if (argv
[from
][1] == '-' && argv
[from
][2] == 0)
1848 /* Leave the "--", and everything following it, at the end. */
1849 for (; from
< argc
; from
++)
1851 priority
[from
] = -100;
1857 /* Look for a match with a known old-fashioned option. */
1858 for (i
= 0; i
< sizeof (standard_args
) / sizeof (standard_args
[0]); i
++)
1859 if (!strcmp (argv
[from
], standard_args
[i
].name
))
1861 options
[from
] = standard_args
[i
].nargs
;
1862 priority
[from
] = standard_args
[i
].priority
;
1863 if (from
+ standard_args
[i
].nargs
>= argc
)
1864 fatal ("Option `%s' requires an argument\n", argv
[from
]);
1865 from
+= standard_args
[i
].nargs
;
1869 /* Look for a match with a known long option.
1870 MATCH is -1 if no match so far, -2 if two or more matches so far,
1871 >= 0 (the table index of the match) if just one match so far. */
1872 if (argv
[from
][1] == '-')
1875 thislen
= strlen (argv
[from
]);
1876 equals
= index (argv
[from
], '=');
1878 thislen
= equals
- argv
[from
];
1881 i
< sizeof (standard_args
) / sizeof (standard_args
[0]); i
++)
1882 if (standard_args
[i
].longname
1883 && !strncmp (argv
[from
], standard_args
[i
].longname
,
1892 /* If we found exactly one match, use that. */
1895 options
[from
] = standard_args
[match
].nargs
;
1896 priority
[from
] = standard_args
[match
].priority
;
1897 /* If --OPTION=VALUE syntax is used,
1898 this option uses just one argv element. */
1901 if (from
+ options
[from
] >= argc
)
1902 fatal ("Option `%s' requires an argument\n", argv
[from
]);
1903 from
+= options
[from
];
1905 /* FIXME When match < 0, shouldn't there be some error,
1906 or at least indication to the user that there was a
1913 /* Copy the arguments, in order of decreasing priority, to NEW. */
1915 while (incoming_used
< argc
)
1918 int best_priority
= -9999;
1920 /* Find the highest priority remaining option.
1921 If several have equal priority, take the first of them. */
1922 for (from
= 1; from
< argc
; from
++)
1924 if (argv
[from
] != 0 && priority
[from
] > best_priority
)
1926 best_priority
= priority
[from
];
1929 /* Skip option arguments--they are tied to the options. */
1930 if (options
[from
] > 0)
1931 from
+= options
[from
];
1937 /* Copy the highest priority remaining option, with its args, to NEW.
1938 Unless it is a duplicate of the previous one. */
1939 if (! (options
[best
] == 0
1940 && ! strcmp (new[to
- 1], argv
[best
])))
1942 new[to
++] = argv
[best
];
1943 for (i
= 0; i
< options
[best
]; i
++)
1944 new[to
++] = argv
[best
+ i
+ 1];
1947 incoming_used
+= 1 + (options
[best
] > 0 ? options
[best
] : 0);
1949 /* Clear out this option in ARGV. */
1951 for (i
= 0; i
< options
[best
]; i
++)
1952 argv
[best
+ i
+ 1] = 0;
1955 /* If duplicate options were deleted, fill up extra space with null ptrs. */
1959 bcopy (new, argv
, sizeof (char *) * argc
);
1966 DEFUN ("kill-emacs", Fkill_emacs
, Skill_emacs
, 0, 1, "P",
1967 doc
: /* Exit the Emacs job and kill it.
1968 If ARG is an integer, return ARG as the exit program code.
1969 If ARG is a string, stuff it as keyboard input.
1971 The value of `kill-emacs-hook', if not void,
1972 is a list of functions (of no args),
1973 all of which are called before Emacs is actually killed. */)
1977 struct gcpro gcpro1
;
1984 if (!NILP (Vrun_hooks
) && !noninteractive
)
1985 call1 (Vrun_hooks
, intern ("kill-emacs-hook"));
1989 shut_down_emacs (0, 0, STRINGP (arg
) ? arg
: Qnil
);
1991 /* If we have an auto-save list file,
1992 kill it because we are exiting Emacs deliberately (not crashing).
1993 Do it after shut_down_emacs, which does an auto-save. */
1994 if (STRINGP (Vauto_save_list_file_name
))
1995 unlink (SDATA (Vauto_save_list_file_name
));
1997 exit (INTEGERP (arg
) ? XINT (arg
) : EXIT_SUCCESS
);
2003 /* Perform an orderly shutdown of Emacs. Autosave any modified
2004 buffers, kill any child processes, clean up the terminal modes (if
2005 we're in the foreground), and other stuff like that. Don't perform
2006 any redisplay; this may be called when Emacs is shutting down in
2007 the background, or after its X connection has died.
2009 If SIG is a signal number, print a message for it.
2011 This is called by fatal signal handlers, X protocol error handlers,
2015 shut_down_emacs (sig
, no_x
, stuff
)
2019 /* Prevent running of hooks from now on. */
2022 /* Don't update display from now on. */
2023 Vinhibit_redisplay
= Qt
;
2025 /* If we are controlling the terminal, reset terminal modes. */
2026 #ifdef EMACS_HAVE_TTY_PGRP
2028 int pgrp
= EMACS_GETPGRP (0);
2031 if (EMACS_GET_TTY_PGRP (0, &tpgrp
) != -1
2034 reset_all_sys_modes ();
2035 if (sig
&& sig
!= SIGTERM
)
2036 fprintf (stderr
, "Fatal error (%d)", sig
);
2041 reset_all_sys_modes ();
2044 stuff_buffered_input (stuff
);
2047 inhibit_sentinels
= 1;
2049 kill_buffer_processes (Qnil
);
2050 Fdo_auto_save (Qt
, Qnil
);
2052 #ifdef CLASH_DETECTION
2053 unlock_all_files ();
2056 #if 0 /* This triggers a bug in XCloseDisplay and is not needed. */
2057 #ifdef HAVE_X_WINDOWS
2058 /* It's not safe to call intern here. Maybe we are crashing. */
2059 if (!noninteractive
&& SYMBOLP (Vinitial_window_system
)
2060 && SCHARS (SYMBOL_NAME (Vinitial_window_system
)) == 1
2061 && SREF (SYMBOL_NAME (Vinitial_window_system
), 0) == 'x'
2063 Fx_close_current_connection ();
2064 #endif /* HAVE_X_WINDOWS */
2068 /* There is a tendency for a SIGIO signal to arrive within exit,
2069 and cause a SIGHUP because the input descriptor is already closed. */
2071 signal (SIGIO
, SIG_IGN
);
2078 /* Do this only if terminating normally, we want glyph matrices
2079 etc. in a core dump. */
2080 if (sig
== 0 || sig
== SIGTERM
)
2082 check_glyph_memory ();
2083 check_message_stack ();
2091 ns_term_shutdown (sig
);
2101 DEFUN ("dump-emacs-data", Fdump_emacs_data
, Sdump_emacs_data
, 1, 1, 0,
2102 doc
: /* Dump current state of Emacs into data file FILENAME.
2103 This function exists on systems that use HAVE_SHM. */)
2105 Lisp_Object filename
;
2107 extern char my_edata
[];
2111 CHECK_STRING (filename
);
2112 filename
= Fexpand_file_name (filename
, Qnil
);
2115 Vpurify_flag
= Qnil
;
2118 /* Tell malloc where start of impure now is. */
2119 /* Also arrange for warnings when nearly out of space. */
2120 #ifndef SYSTEM_MALLOC
2121 memory_warnings (my_edata
, malloc_warning
);
2123 map_out_data (SDATA (filename
));
2130 #else /* not HAVE_SHM */
2132 DEFUN ("dump-emacs", Fdump_emacs
, Sdump_emacs
, 2, 2, 0,
2133 doc
: /* Dump current state of Emacs into executable file FILENAME.
2134 Take symbols from SYMFILE (presumably the file you executed to run Emacs).
2135 This is used in the file `loadup.el' when building Emacs.
2137 You must run Emacs in batch mode in order to dump it. */)
2139 Lisp_Object filename
, symfile
;
2141 extern char my_edata
[];
2144 int count
= SPECPDL_INDEX ();
2148 if (! noninteractive
)
2149 error ("Dumping Emacs works only in batch mode");
2152 if (heap_bss_diff
> MAX_HEAP_BSS_DIFF
)
2154 fprintf (stderr
, "**************************************************\n");
2155 fprintf (stderr
, "Warning: Your system has a gap between BSS and the\n");
2156 fprintf (stderr
, "heap (%lu bytes). This usually means that exec-shield\n",
2158 fprintf (stderr
, "or something similar is in effect. The dump may\n");
2159 fprintf (stderr
, "fail because of this. See the section about\n");
2160 fprintf (stderr
, "exec-shield in etc/PROBLEMS for more information.\n");
2161 fprintf (stderr
, "**************************************************\n");
2163 #endif /* GNU_LINUX */
2165 /* Bind `command-line-processed' to nil before dumping,
2166 so that the dumped Emacs will process its command line
2167 and set up to work with X windows if appropriate. */
2168 symbol
= intern ("command-line-processed");
2169 specbind (symbol
, Qnil
);
2171 CHECK_STRING (filename
);
2172 filename
= Fexpand_file_name (filename
, Qnil
);
2173 if (!NILP (symfile
))
2175 CHECK_STRING (symfile
);
2176 if (SCHARS (symfile
))
2177 symfile
= Fexpand_file_name (symfile
, Qnil
);
2181 Vpurify_flag
= Qnil
;
2184 set_time_zone_rule (dump_tz
);
2185 #ifndef LOCALTIME_CACHE
2186 /* Force a tz reload, since set_time_zone_rule doesn't. */
2192 /* Tell malloc where start of impure now is. */
2193 /* Also arrange for warnings when nearly out of space. */
2194 #ifndef SYSTEM_MALLOC
2196 /* On Windows, this was done before dumping, and that once suffices.
2197 Meanwhile, my_edata is not valid on Windows. */
2198 memory_warnings (my_edata
, malloc_warning
);
2199 #endif /* not WINDOWSNT */
2201 #if !defined (SYSTEM_MALLOC) && defined (HAVE_GTK_AND_PTHREAD) && !defined SYNC_INPUT
2202 /* Pthread may call malloc before main, and then we will get an endless
2203 loop, because pthread_self (see alloc.c) calls malloc the first time
2204 it is called on some systems. */
2205 reset_malloc_hooks ();
2207 #ifdef DOUG_LEA_MALLOC
2208 malloc_state_ptr
= malloc_get_state ();
2211 #ifdef USE_MMAP_FOR_BUFFERS
2214 unexec (SDATA (filename
),
2215 !NILP (symfile
) ? SDATA (symfile
) : 0, my_edata
, 0, 0);
2216 #ifdef USE_MMAP_FOR_BUFFERS
2219 #ifdef DOUG_LEA_MALLOC
2220 free (malloc_state_ptr
);
2225 return unbind_to (count
, Qnil
);
2228 #endif /* not HAVE_SHM */
2230 #endif /* not CANNOT_DUMP */
2233 /* Recover from setlocale (LC_ALL, ""). */
2237 /* The Emacs Lisp reader needs LC_NUMERIC to be "C",
2238 so that numbers are read and printed properly for Emacs Lisp. */
2239 setlocale (LC_NUMERIC
, "C");
2242 /* Set system locale CATEGORY, with previous locale *PLOCALE, to
2245 synchronize_locale (category
, plocale
, desired_locale
)
2247 Lisp_Object
*plocale
;
2248 Lisp_Object desired_locale
;
2250 if (! EQ (*plocale
, desired_locale
))
2252 *plocale
= desired_locale
;
2253 setlocale (category
, (STRINGP (desired_locale
)
2254 ? (char *) SDATA (desired_locale
)
2259 /* Set system time locale to match Vsystem_time_locale, if possible. */
2261 synchronize_system_time_locale ()
2263 synchronize_locale (LC_TIME
, &Vprevious_system_time_locale
,
2264 Vsystem_time_locale
);
2267 /* Set system messages locale to match Vsystem_messages_locale, if
2270 synchronize_system_messages_locale ()
2273 synchronize_locale (LC_MESSAGES
, &Vprevious_system_messages_locale
,
2274 Vsystem_messages_locale
);
2277 #endif /* HAVE_SETLOCALE */
2284 decode_env_path (evarname
, defalt
)
2285 char *evarname
, *defalt
;
2287 register char *path
, *p
;
2288 Lisp_Object lpath
, element
, tem
;
2290 /* It's okay to use getenv here, because this function is only used
2291 to initialize variables when Emacs starts up, and isn't called
2294 path
= (char *) getenv (evarname
);
2300 /* Ensure values from the environment use the proper directory separator. */
2303 p
= alloca (strlen (path
) + 1);
2307 if ('/' == DIRECTORY_SEP
)
2308 dostounix_filename (path
);
2310 unixtodos_filename (path
);
2316 p
= index (path
, SEPCHAR
);
2317 if (!p
) p
= path
+ strlen (path
);
2318 element
= (p
- path
? make_string (path
, p
- path
)
2319 : build_string ("."));
2321 /* Add /: to the front of the name
2322 if it would otherwise be treated as magic. */
2323 tem
= Ffind_file_name_handler (element
, Qt
);
2325 /* However, if the handler says "I'm safe",
2326 don't bother adding /:. */
2330 prop
= Fget (tem
, intern ("safe-magic"));
2336 element
= concat2 (build_string ("/:"), element
);
2338 lpath
= Fcons (element
, lpath
);
2344 return Fnreverse (lpath
);
2350 Qfile_name_handler_alist
= intern ("file-name-handler-alist");
2351 staticpro (&Qfile_name_handler_alist
);
2355 defsubr (&Sdump_emacs_data
);
2357 defsubr (&Sdump_emacs
);
2361 defsubr (&Skill_emacs
);
2363 defsubr (&Sinvocation_name
);
2364 defsubr (&Sinvocation_directory
);
2366 DEFVAR_LISP ("command-line-args", &Vcommand_line_args
,
2367 doc
: /* Args passed by shell to Emacs, as a list of strings.
2368 Many arguments are deleted from the list as they are processed. */);
2370 DEFVAR_LISP ("system-type", &Vsystem_type
,
2371 doc
: /* Value is symbol indicating type of operating system you are using.
2373 `gnu' compiled for a GNU Hurd system.
2374 `gnu/linux' compiled for a GNU/Linux system.
2375 `darwin' compiled for Darwin (GNU-Darwin, Mac OS X, ...).
2376 `ms-dos' compiled as an MS-DOS application.
2377 `windows-nt' compiled as a native W32 application.
2378 `cygwin' compiled using the Cygwin library.
2379 Anything else indicates some sort of Unix system. */);
2380 Vsystem_type
= intern (SYSTEM_TYPE
);
2382 DEFVAR_LISP ("system-configuration", &Vsystem_configuration
,
2383 doc
: /* Value is string indicating configuration Emacs was built for.
2384 On MS-Windows, the value reflects the OS flavor and version on which
2385 Emacs is running. */);
2386 Vsystem_configuration
= build_string (EMACS_CONFIGURATION
);
2388 DEFVAR_LISP ("system-configuration-options", &Vsystem_configuration_options
,
2389 doc
: /* String containing the configuration options Emacs was built with. */);
2390 Vsystem_configuration_options
= build_string (EMACS_CONFIG_OPTIONS
);
2392 DEFVAR_BOOL ("noninteractive", &noninteractive1
,
2393 doc
: /* Non-nil means Emacs is running without interactive terminal. */);
2395 DEFVAR_LISP ("kill-emacs-hook", &Vkill_emacs_hook
,
2396 doc
: /* Hook to be run when `kill-emacs' is called.
2397 Since `kill-emacs' may be invoked when the terminal is disconnected (or
2398 in other similar situations), functions placed on this hook should not
2399 expect to be able to interact with the user. To ask for confirmation,
2400 see `kill-emacs-query-functions' instead.
2402 The hook is not run in batch mode, i.e., if `noninteractive' is non-nil. */);
2403 Vkill_emacs_hook
= Qnil
;
2405 DEFVAR_INT ("emacs-priority", &emacs_priority
,
2406 doc
: /* Priority for Emacs to run at.
2407 This value is effective only if set before Emacs is dumped,
2408 and only if the Emacs executable is installed with setuid to permit
2409 it to change priority. (Emacs sets its uid back to the real uid.)
2410 Currently, you need to define SET_EMACS_PRIORITY in `config.h'
2411 before you compile Emacs, to enable the code for this feature. */);
2414 DEFVAR_LISP ("path-separator", &Vpath_separator
,
2415 doc
: /* String containing the character that separates directories in
2416 search paths, such as PATH and other similar environment variables. */);
2419 Vpath_separator
= make_string (&c
, 1);
2422 DEFVAR_LISP ("invocation-name", &Vinvocation_name
,
2423 doc
: /* The program name that was used to run Emacs.
2424 Any directory names are omitted. */);
2426 DEFVAR_LISP ("invocation-directory", &Vinvocation_directory
,
2427 doc
: /* The directory in which the Emacs executable was found, to run it.
2428 The value is nil if that directory's name is not known. */);
2430 DEFVAR_LISP ("installation-directory", &Vinstallation_directory
,
2431 doc
: /* A directory within which to look for the `lib-src' and `etc' directories.
2432 This is non-nil when we can't find those directories in their standard
2433 installed locations, but we can find them near where the Emacs executable
2435 Vinstallation_directory
= Qnil
;
2437 DEFVAR_LISP ("system-messages-locale", &Vsystem_messages_locale
,
2438 doc
: /* System locale for messages. */);
2439 Vsystem_messages_locale
= Qnil
;
2441 DEFVAR_LISP ("previous-system-messages-locale",
2442 &Vprevious_system_messages_locale
,
2443 doc
: /* Most recently used system locale for messages. */);
2444 Vprevious_system_messages_locale
= Qnil
;
2446 DEFVAR_LISP ("system-time-locale", &Vsystem_time_locale
,
2447 doc
: /* System locale for time. */);
2448 Vsystem_time_locale
= Qnil
;
2450 DEFVAR_LISP ("previous-system-time-locale", &Vprevious_system_time_locale
,
2451 doc
: /* Most recently used system locale for time. */);
2452 Vprevious_system_time_locale
= Qnil
;
2455 /* arch-tag: 7bfd356a-c720-4612-8ab6-aa4222931c2e
2456 (do not change this comment) */