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 /* The values of `current-time' before and after Emacs initialization. */
135 Lisp_Object Vbefore_init_time
, Vafter_init_time
;
137 /* Hook run by `kill-emacs' before it does really anything. */
138 Lisp_Object Vkill_emacs_hook
;
140 /* Empty lisp strings. To avoid having to build any others. */
141 Lisp_Object empty_unibyte_string
, empty_multibyte_string
;
143 /* Search path separator. */
144 Lisp_Object Vpath_separator
;
146 /* Set nonzero after Emacs has started up the first time.
147 Prevents reinitialization of the Lisp world and keymaps
148 on subsequent starts. */
151 #ifdef DOUG_LEA_MALLOC
152 /* Preserves a pointer to the memory allocated that copies that
153 static data inside glibc's malloc. */
154 void *malloc_state_ptr
;
155 /* From glibc, a routine that returns a copy of the malloc internal state. */
156 extern void *malloc_get_state ();
157 /* From glibc, a routine that overwrites the malloc internal state. */
158 extern int malloc_set_state ();
159 /* Non-zero if the MALLOC_CHECK_ enviroment variable was set while
160 dumping. Used to work around a bug in glibc's malloc. */
161 int malloc_using_checking
;
164 /* Variable whose value is symbol giving operating system type. */
165 Lisp_Object Vsystem_type
;
167 /* Variable whose value is string giving configuration built for. */
168 Lisp_Object Vsystem_configuration
;
170 /* Variable whose value is string giving configuration options,
171 for use when reporting bugs. */
172 Lisp_Object Vsystem_configuration_options
;
174 Lisp_Object Qfile_name_handler_alist
;
176 /* Current and previous system locales for messages and time. */
177 Lisp_Object Vsystem_messages_locale
;
178 Lisp_Object Vprevious_system_messages_locale
;
179 Lisp_Object Vsystem_time_locale
;
180 Lisp_Object Vprevious_system_time_locale
;
182 /* If non-zero, emacs should not attempt to use a window-specific code,
183 but instead should use the virtual terminal under which it was started. */
184 int inhibit_window_system
;
186 /* If nonzero, set Emacs to run at this priority. This is also used
187 in child_setup and sys_suspend to make sure subshells run at normal
188 priority; those functions have their own extern declaration. */
189 EMACS_INT emacs_priority
;
191 /* If non-zero, a filter or a sentinel is running. Tested to save the match
192 data on the first attempt to change it inside asynchronous code. */
193 int running_asynch_code
;
197 extern int inherited_pgroup
;
200 #if defined(HAVE_X_WINDOWS) || defined(HAVE_NS)
201 /* If non-zero, -d was specified, meaning we're using some window system. */
205 /* An address near the bottom of the stack.
206 Tells GC how to save a copy of the stack. */
209 /* The address where the heap starts (from the first sbrk (0) call). */
210 static void *my_heap_start
;
212 /* The gap between BSS end and heap start as far as we can tell. */
213 static unsigned long heap_bss_diff
;
215 /* If the gap between BSS end and heap start is larger than this we try to
216 work around it, and if that fails, output a warning in dump-emacs. */
217 #define MAX_HEAP_BSS_DIFF (1024*1024)
220 #ifdef HAVE_WINDOW_SYSTEM
221 extern Lisp_Object Vinitial_window_system
;
222 #endif /* HAVE_WINDOW_SYSTEM */
224 extern Lisp_Object Vauto_save_list_file_name
;
226 extern Lisp_Object Vinhibit_redisplay
;
228 /* Nonzero means running Emacs without interactive terminal. */
232 /* Value of Lisp variable `noninteractive'.
233 Normally same as C variable `noninteractive'
234 but nothing terrible happens if user sets this one. */
238 /* Nonzero means Emacs was started as a daemon. */
241 /* Save argv and argc. */
245 static void sort_args ();
246 void syms_of_emacs ();
248 /* MSVC needs each string be shorter than 2048 bytes, so the usage
249 strings below are split to not overflow this limit. */
251 Usage: %s [OPTION-OR-FILENAME]...\n\
253 Run Emacs, the extensible, customizable, self-documenting real-time\n\
254 display editor. The recommended way to start Emacs for normal editing\n\
255 is with no options at all.\n\
257 Run M-x info RET m emacs RET m emacs invocation RET inside Emacs to\n\
258 read the main documentation for these command-line arguments.\n\
260 Initialization options:\n\
262 --batch do not do interactive display; implies -q\n\
263 --daemon start a server in the background\n\
264 --debug-init enable Emacs Lisp debugger for init file\n\
265 --display, -d DISPLAY use X server DISPLAY\n\
266 --multibyte, --no-unibyte inhibit the effect of EMACS_UNIBYTE\n\
267 --no-desktop do not load a saved desktop\n\
268 --no-init-file, -q load neither ~/.emacs nor default.el\n\
269 --no-shared-memory, -nl do not use shared memory\n\
270 --no-site-file do not load site-start.el\n\
271 --no-splash do not display a splash screen on startup\n\
272 --no-window-system, -nw do not communicate with X, ignoring $DISPLAY\n\
273 --quick, -Q equivalent to -q --no-site-file --no-splash\n\
274 --script FILE run FILE as an Emacs Lisp script\n\
275 --terminal, -t DEVICE use DEVICE for terminal I/O\n\
276 --unibyte, --no-multibyte run Emacs in unibyte mode\n\
277 --user, -u USER load ~USER/.emacs instead of your own\n\
283 FILE visit FILE using find-file\n\
284 +LINE go to line LINE in next FILE\n\
285 +LINE:COLUMN go to line LINE, column COLUMN, in next FILE\n\
286 --directory, -L DIR add DIR to variable load-path\n\
287 --eval EXPR evaluate Emacs Lisp expression EXPR\n\
288 --execute EXPR evaluate Emacs Lisp expression EXPR\n\
289 --file FILE visit FILE using find-file\n\
290 --find-file FILE visit FILE using find-file\n\
291 --funcall, -f FUNC call Emacs Lisp function FUNC with no arguments\n\
292 --insert FILE insert contents of FILE into current buffer\n\
293 --kill exit without asking for confirmation\n\
294 --load, -l FILE load Emacs Lisp FILE using the load function\n\
295 --visit FILE visit FILE using find-file\n\
301 --background-color, -bg COLOR window background color\n\
302 --basic-display, -D disable many display features;\n\
303 used for debugging Emacs\n\
304 --border-color, -bd COLOR main border color\n\
305 --border-width, -bw WIDTH width of main border\n\
306 --color, --color=MODE override color mode for character terminals;\n\
307 MODE defaults to `auto', and can also\n\
308 be `never', `auto', `always',\n\
309 or a mode name like `ansi8'\n\
310 --cursor-color, -cr COLOR color of the Emacs cursor indicating point\n\
311 --font, -fn FONT default font; must be fixed-width\n\
312 --foreground-color, -fg COLOR window foreground color\n\
313 --fullheight, -fh make the first frame high as the screen\n\
314 --fullscreen, -fs make first frame fullscreen\n\
315 --fullwidth, -fw make the first frame wide as the screen\n\
316 --geometry, -g GEOMETRY window geometry\n\
317 --no-bitmap-icon, -nbi do not use picture of gnu for Emacs icon\n\
318 --iconic start Emacs in iconified state\n\
319 --internal-border, -ib WIDTH width between text and main border\n\
320 --line-spacing, -lsp PIXELS additional space to put between lines\n\
321 --mouse-color, -ms COLOR mouse cursor color in Emacs window\n\
322 --name NAME title for initial Emacs frame\n\
323 --no-blinking-cursor, -nbc disable blinking cursor\n\
324 --reverse-video, -r, -rv switch foreground and background\n\
325 --title, -T TITLE title for initial Emacs frame\n\
326 --vertical-scroll-bars, -vb enable vertical scroll bars\n\
327 --xrm XRESOURCES set additional X resources\n\
328 --parent-id XID set parent window\n\
329 --help display this help and exit\n\
330 --version output version information and exit\n\
334 You can generally also specify long option names with a single -; for\n\
335 example, -batch as well as --batch. You can use any unambiguous\n\
336 abbreviation for a --option.\n\
338 Various environment variables and window system resources also affect\n\
339 Emacs' operation. See the main documentation.\n\
341 Report bugs to %s. First, please see the Bugs\n\
342 section of the Emacs manual or the file BUGS.\n"
345 /* Signal code for the fatal signal that was received. */
346 int fatal_error_code
;
348 /* Nonzero if handling a fatal error already. */
349 int fatal_error_in_progress
;
351 /* If non-null, call this function from fatal_error_signal before
352 committing suicide. */
354 void (*fatal_error_signal_hook
) P_ ((void));
356 #ifdef FORWARD_SIGNAL_TO_MAIN_THREAD
357 /* When compiled with GTK and running under Gnome,
358 multiple threads may be created. Keep track of our main
359 thread to make sure signals are delivered to it (see syssignal.h). */
361 pthread_t main_thread
;
365 /* Handle bus errors, invalid instruction, etc. */
367 fatal_error_signal (sig
)
370 SIGNAL_THREAD_CHECK (sig
);
371 fatal_error_code
= sig
;
372 signal (sig
, SIG_DFL
);
374 TOTALLY_UNBLOCK_INPUT
;
376 /* If fatal error occurs in code below, avoid infinite recursion. */
377 if (! fatal_error_in_progress
)
379 fatal_error_in_progress
= 1;
381 shut_down_emacs (sig
, 0, Qnil
);
384 /* Signal the same code; this time it will really be fatal.
385 Remember that since we're in a signal handler, the signal we're
386 going to send is probably blocked, so we have to unblock it if we
387 want to really receive it. */
389 sigunblock (sigmask (fatal_error_code
));
392 if (fatal_error_signal_hook
)
393 fatal_error_signal_hook ();
395 kill (getpid (), fatal_error_code
);
400 /* Handler for SIGDANGER. */
402 memory_warning_signal (sig
)
405 signal (sig
, memory_warning_signal
);
406 SIGNAL_THREAD_CHECK (sig
);
408 malloc_warning ("Operating system warns that virtual memory is running low.\n");
410 /* It might be unsafe to call do_auto_save now. */
411 force_auto_save_soon ();
415 /* We define abort, rather than using it from the library,
416 so that GDB can return from a breakpoint here.
417 MSDOS has its own definition in msdos.c. */
419 #if ! defined (DOS_NT) && ! defined (NO_ABORT)
424 kill (getpid (), SIGABRT
);
425 /* This shouldn't be executed, but it prevents a warning. */
431 /* Code for dealing with Lisp access to the Unix command line. */
434 init_cmdargs (argc
, argv
, skip_args
)
440 Lisp_Object name
, dir
, tem
;
441 int count
= SPECPDL_INDEX ();
442 Lisp_Object raw_name
;
447 raw_name
= build_string (argv
[0]);
449 /* Add /: to the front of the name
450 if it would otherwise be treated as magic. */
451 tem
= Ffind_file_name_handler (raw_name
, Qt
);
453 raw_name
= concat2 (build_string ("/:"), raw_name
);
455 Vinvocation_name
= Ffile_name_nondirectory (raw_name
);
456 Vinvocation_directory
= Ffile_name_directory (raw_name
);
458 /* If we got no directory in argv[0], search PATH to find where
459 Emacs actually came from. */
460 if (NILP (Vinvocation_directory
))
463 int yes
= openp (Vexec_path
, Vinvocation_name
,
464 Vexec_suffixes
, &found
, make_number (X_OK
));
467 /* Add /: to the front of the name
468 if it would otherwise be treated as magic. */
469 tem
= Ffind_file_name_handler (found
, Qt
);
471 found
= concat2 (build_string ("/:"), found
);
472 Vinvocation_directory
= Ffile_name_directory (found
);
476 if (!NILP (Vinvocation_directory
)
477 && NILP (Ffile_name_absolute_p (Vinvocation_directory
)))
478 /* Emacs was started with relative path, like ./emacs.
480 Vinvocation_directory
= Fexpand_file_name (Vinvocation_directory
, Qnil
);
482 Vinstallation_directory
= Qnil
;
484 if (!NILP (Vinvocation_directory
))
486 dir
= Vinvocation_directory
;
487 name
= Fexpand_file_name (Vinvocation_name
, dir
);
490 Lisp_Object tem
, lib_src_exists
;
491 Lisp_Object etc_exists
, info_exists
;
493 /* See if dir contains subdirs for use by Emacs.
494 Check for the ones that would exist in a build directory,
495 not including lisp and info. */
496 tem
= Fexpand_file_name (build_string ("lib-src"), dir
);
497 lib_src_exists
= Ffile_exists_p (tem
);
500 /* MSDOS installations frequently remove lib-src, but we still
501 must set installation-directory, or else info won't find
502 its files (it uses the value of installation-directory). */
503 tem
= Fexpand_file_name (build_string ("info"), dir
);
504 info_exists
= Ffile_exists_p (tem
);
509 if (!NILP (lib_src_exists
) || !NILP (info_exists
))
511 tem
= Fexpand_file_name (build_string ("etc"), dir
);
512 etc_exists
= Ffile_exists_p (tem
);
513 if (!NILP (etc_exists
))
515 Vinstallation_directory
516 = Ffile_name_as_directory (dir
);
521 /* See if dir's parent contains those subdirs. */
522 tem
= Fexpand_file_name (build_string ("../lib-src"), dir
);
523 lib_src_exists
= Ffile_exists_p (tem
);
527 /* See the MSDOS commentary above. */
528 tem
= Fexpand_file_name (build_string ("../info"), dir
);
529 info_exists
= Ffile_exists_p (tem
);
534 if (!NILP (lib_src_exists
) || !NILP (info_exists
))
536 tem
= Fexpand_file_name (build_string ("../etc"), dir
);
537 etc_exists
= Ffile_exists_p (tem
);
538 if (!NILP (etc_exists
))
540 tem
= Fexpand_file_name (build_string (".."), dir
);
541 Vinstallation_directory
542 = Ffile_name_as_directory (tem
);
547 /* If the Emacs executable is actually a link,
548 next try the dir that the link points into. */
549 tem
= Ffile_symlink_p (name
);
552 name
= Fexpand_file_name (tem
, dir
);
553 dir
= Ffile_name_directory (name
);
560 Vcommand_line_args
= Qnil
;
562 for (i
= argc
- 1; i
>= 0; i
--)
564 if (i
== 0 || i
> skip_args
)
565 /* For the moment, we keep arguments as is in unibyte strings.
566 They are decoded in the function command-line after we know
567 locale-coding-system. */
569 = Fcons (make_unibyte_string (argv
[i
], strlen (argv
[i
])),
573 unbind_to (count
, Qnil
);
576 DEFUN ("invocation-name", Finvocation_name
, Sinvocation_name
, 0, 0, 0,
577 doc
: /* Return the program name that was used to run Emacs.
578 Any directory names are omitted. */)
581 return Fcopy_sequence (Vinvocation_name
);
584 DEFUN ("invocation-directory", Finvocation_directory
, Sinvocation_directory
,
586 doc
: /* Return the directory name in which the Emacs executable was located. */)
589 return Fcopy_sequence (Vinvocation_directory
);
594 /* A valid but unlikely value for the TZ environment value.
595 It is OK (though a bit slower) if the user actually chooses this value. */
596 static char dump_tz
[] = "UtC0";
599 #ifndef ORDINARY_LINK
600 /* We don't include crtbegin.o and crtend.o in the link,
601 so these functions and variables might be missed.
602 Provide dummy definitions to avoid error.
603 (We don't have any real constructors or destructors.) */
605 #ifndef GCC_CTORS_IN_LIBC
606 void __do_global_ctors ()
608 void __do_global_ctors_aux ()
610 void __do_global_dtors ()
612 /* GNU/Linux has a bug in its library; avoid an error. */
614 char * __CTOR_LIST__
[2] = { (char *) (-1), 0 };
616 char * __DTOR_LIST__
[2] = { (char *) (-1), 0 };
617 #endif /* GCC_CTORS_IN_LIBC */
620 #endif /* __GNUC__ */
621 #endif /* ORDINARY_LINK */
623 /* Test whether the next argument in ARGV matches SSTR or a prefix of
624 LSTR (at least MINLEN characters). If so, then if VALPTR is non-null
625 (the argument is supposed to have a value) store in *VALPTR either
626 the next argument or the portion of this one after the equal sign.
627 ARGV is read starting at position *SKIPPTR; this index is advanced
628 by the number of arguments used.
630 Too bad we can't just use getopt for all of this, but we don't have
631 enough information to do it right. */
634 argmatch (argv
, argc
, sstr
, lstr
, minlen
, valptr
, skipptr
)
647 /* Don't access argv[argc]; give up in advance. */
648 if (argc
<= *skipptr
+ 1)
651 arg
= argv
[*skipptr
+1];
654 if (strcmp (arg
, sstr
) == 0)
658 *valptr
= argv
[*skipptr
+2];
665 arglen
= (valptr
!= NULL
&& (p
= index (arg
, '=')) != NULL
666 ? p
- arg
: strlen (arg
));
667 if (lstr
== 0 || arglen
< minlen
|| strncmp (arg
, lstr
, arglen
) != 0)
669 else if (valptr
== NULL
)
680 else if (argv
[*skipptr
+2] != NULL
)
682 *valptr
= argv
[*skipptr
+2];
692 #ifdef DOUG_LEA_MALLOC
694 /* malloc can be invoked even before main (e.g. by the dynamic
695 linker), so the dumped malloc state must be restored as early as
696 possible using this special hook. */
699 malloc_initialize_hook ()
702 extern char **environ
;
707 if (!malloc_using_checking
)
708 /* Work around a bug in glibc's malloc. MALLOC_CHECK_ must be
709 ignored if the heap to be restored was constructed without
710 malloc checking. Can't use unsetenv, since that calls malloc. */
714 for (p
= environ
; p
&& *p
; p
++)
715 if (strncmp (*p
, "MALLOC_CHECK_=", 14) == 0)
724 malloc_set_state (malloc_state_ptr
);
725 #ifndef XMALLOC_OVERRUN_CHECK
726 free (malloc_state_ptr
);
731 if (my_heap_start
== 0)
732 my_heap_start
= sbrk (0);
733 malloc_using_checking
= getenv ("MALLOC_CHECK_") != NULL
;
737 void (*__malloc_initialize_hook
) () = malloc_initialize_hook
;
739 #endif /* DOUG_LEA_MALLOC */
742 #define REPORT_EMACS_BUG_ADDRESS "bug-gnu-emacs@gnu.org"
743 #define REPORT_EMACS_BUG_PRETEST_ADDRESS "emacs-pretest-bug@gnu.org"
745 /* This function is used to determine an address to which bug report should
749 bug_reporting_address ()
755 temp
= Fsymbol_value (intern ("emacs-version"));
757 /* When `emacs-version' is invalid, use normal address. */
759 return REPORT_EMACS_BUG_ADDRESS
;
761 string
= SDATA (temp
);
763 /* Count dots in `emacs-version'. */
771 /* When `emacs-version' has at least three dots, it is development or
772 pretest version of Emacs. */
773 return count
>= 3 ? REPORT_EMACS_BUG_PRETEST_ADDRESS
: REPORT_EMACS_BUG_ADDRESS
;
779 main (int argc
, char **argv
)
784 char stack_bottom_variable
;
785 int do_initial_setlocale
;
790 #ifdef HAVE_SETRLIMIT
797 extern Lisp_Object
*stack_base
;
803 extern char my_endbss
[];
804 extern char *my_endbss_static
;
806 if (my_heap_start
== 0)
807 my_heap_start
= sbrk (0);
809 heap_bss_diff
= (char *)my_heap_start
- max (my_endbss
, my_endbss_static
);
812 #ifdef LINUX_SBRK_BUG
813 /* This is only used GNU/LINUX running on alpha when using libc5 */
817 #ifdef RUN_TIME_REMAP
819 run_time_remap (argv
[0]);
822 /* If using unexmacosx.c (set by s/darwin.h), we must do this. */
825 unexec_init_emacs_zone ();
828 sort_args (argc
, argv
);
830 while (argv
[argc
]) argc
++;
832 if (argmatch (argv
, argc
, "-version", "--version", 3, NULL
, &skip_args
)
833 /* We don't know the version number unless this is a dumped Emacs.
834 So ignore --version otherwise. */
837 Lisp_Object tem
, tem2
;
838 tem
= Fsymbol_value (intern ("emacs-version"));
839 tem2
= Fsymbol_value (intern ("emacs-copyright"));
842 fprintf (stderr
, "Invalid value of `emacs-version'\n");
847 fprintf (stderr
, "Invalid value of `emacs-copyright'\n");
852 printf ("GNU Emacs %s\n", SDATA (tem
));
853 printf ("%s\n", SDATA(tem2
));
854 printf ("GNU Emacs comes with ABSOLUTELY NO WARRANTY.\n");
855 printf ("You may redistribute copies of Emacs\n");
856 printf ("under the terms of the GNU General Public License.\n");
857 printf ("For more information about these matters, ");
858 printf ("see the file named COPYING.\n");
863 #ifdef HAVE_PERSONALITY_LINUX32
864 /* See if there is a gap between the end of BSS and the heap.
865 In that case, set personality and exec ourself again. */
867 && (strcmp (argv
[argc
-1], "dump") == 0
868 || strcmp (argv
[argc
-1], "bootstrap") == 0)
869 && heap_bss_diff
> MAX_HEAP_BSS_DIFF
)
871 if (! getenv ("EMACS_HEAP_EXEC"))
873 /* Set this so we only do this once. */
874 putenv("EMACS_HEAP_EXEC=true");
876 /* A flag to turn off address randomization which is introduced
877 in linux kernel shipped with fedora core 4 */
878 #define ADD_NO_RANDOMIZE 0x0040000
879 personality (PER_LINUX32
| ADD_NO_RANDOMIZE
);
880 #undef ADD_NO_RANDOMIZE
882 execvp (argv
[0], argv
);
884 /* If the exec fails, try to dump anyway. */
888 #endif /* HAVE_PERSONALITY_LINUX32 */
891 /* Map in shared memory, if we are using that. */
893 if (argmatch (argv
, argc
, "-nl", "--no-shared-memory", 6, NULL
, &skip_args
))
896 /* The shared memory was just restored, which clobbered this. */
902 /* The shared memory was just restored, which clobbered this. */
907 #if defined (HAVE_SETRLIMIT) && defined (RLIMIT_STACK)
908 /* Extend the stack space available.
909 Don't do that if dumping, since some systems (e.g. DJGPP)
910 might define a smaller stack limit at that time. */
913 && (!noninteractive
|| initialized
)
915 && !getrlimit (RLIMIT_STACK
, &rlim
))
918 extern size_t re_max_failures
;
919 /* Approximate the amount regex.c needs per unit of re_max_failures. */
920 int ratio
= 20 * sizeof (char *);
921 /* Then add 33% to cover the size of the smaller stacks that regex.c
922 successively allocates and discards, on its way to the maximum. */
924 /* Add in some extra to cover
925 what we're likely to use for other reasons. */
926 newlim
= re_max_failures
* ratio
+ 200000;
928 /* NetBSD (at least NetBSD 1.2G and former) has a bug in its
929 stack allocation routine for new process that the allocation
930 fails if stack limit is not on page boundary. So, round up the
931 new limit to page boundary. */
932 newlim
= (newlim
+ getpagesize () - 1) / getpagesize () * getpagesize();
934 if (newlim
> rlim
.rlim_max
)
936 newlim
= rlim
.rlim_max
;
937 /* Don't let regex.c overflow the stack we have. */
938 re_max_failures
= (newlim
- 200000) / ratio
;
940 if (rlim
.rlim_cur
< newlim
)
941 rlim
.rlim_cur
= newlim
;
943 setrlimit (RLIMIT_STACK
, &rlim
);
945 #endif /* HAVE_SETRLIMIT and RLIMIT_STACK */
947 /* Record (approximately) where the stack begins. */
948 stack_bottom
= &stack_bottom_variable
;
952 #ifndef SYSTEM_MALLOC
953 /* Arrange to get warning messages as memory fills up. */
954 memory_warnings (0, malloc_warning
);
956 /* Call malloc at least once, to run the initial __malloc_hook.
957 Also call realloc and free for consistency. */
958 free (realloc (malloc (4), 4));
961 /* Arrange to disable interrupt input inside malloc etc. */
962 uninterrupt_malloc ();
963 # endif /* not SYNC_INPUT */
964 #endif /* not SYSTEM_MALLOC */
966 #ifdef FORWARD_SIGNAL_TO_MAIN_THREAD
967 main_thread
= pthread_self ();
968 #endif /* FORWARD_SIGNAL_TO_MAIN_THREAD */
970 #if defined (MSDOS) || defined (WINDOWSNT)
971 /* We do all file input/output as binary files. When we need to translate
972 newlines, we do that manually. */
974 #endif /* MSDOS || WINDOWSNT */
978 if (!isatty (fileno (stdin
)))
979 setmode (fileno (stdin
), O_BINARY
);
980 if (!isatty (fileno (stdout
)))
983 setmode (fileno (stdout
), O_BINARY
);
985 #else /* not __DJGPP__ >= 2 */
986 (stdin
)->_flag
&= ~_IOTEXT
;
987 (stdout
)->_flag
&= ~_IOTEXT
;
988 (stderr
)->_flag
&= ~_IOTEXT
;
989 #endif /* not __DJGPP__ >= 2 */
992 #ifdef SET_EMACS_PRIORITY
994 nice (emacs_priority
);
996 #endif /* SET_EMACS_PRIORITY */
998 /* Skip initial setlocale if LC_ALL is "C", as it's not needed in that case.
999 The build procedure uses this while dumping, to ensure that the
1000 dumped Emacs does not have its system locale tables initialized,
1001 as that might cause screwups when the dumped Emacs starts up. */
1003 char *lc_all
= getenv ("LC_ALL");
1004 do_initial_setlocale
= ! lc_all
|| strcmp (lc_all
, "C");
1007 /* Set locale now, so that initial error messages are localized properly.
1008 fixup_locale must wait until later, since it builds strings. */
1009 if (do_initial_setlocale
)
1010 setlocale (LC_ALL
, "");
1012 inhibit_window_system
= 0;
1014 /* Handle the -t switch, which specifies filename to use as terminal. */
1018 if (argmatch (argv
, argc
, "-t", "--terminal", 4, &term
, &skip_args
))
1023 result
= emacs_open (term
, O_RDWR
, 0);
1026 char *errstring
= strerror (errno
);
1027 fprintf (stderr
, "%s: %s: %s\n", argv
[0], term
, errstring
);
1033 fprintf (stderr
, "%s: %s: not a tty\n", argv
[0], term
);
1036 fprintf (stderr
, "Using %s\n", term
);
1037 #ifdef HAVE_WINDOW_SYSTEM
1038 inhibit_window_system
= 1; /* -t => -nw */
1045 /* Command line option --no-windows is deprecated and thus not mentioned
1046 in the manual and usage informations. */
1047 if (argmatch (argv
, argc
, "-nw", "--no-window-system", 6, NULL
, &skip_args
)
1048 || argmatch (argv
, argc
, "-nw", "--no-windows", 6, NULL
, &skip_args
))
1049 inhibit_window_system
= 1;
1051 /* Handle the -batch switch, which means don't do interactive display. */
1053 if (argmatch (argv
, argc
, "-batch", "--batch", 5, NULL
, &skip_args
))
1056 Vundo_outer_limit
= Qnil
;
1058 if (argmatch (argv
, argc
, "-script", "--script", 3, &junk
, &skip_args
))
1060 noninteractive
= 1; /* Set batch mode. */
1061 /* Convert --script to -scriptload, un-skip it, and sort again
1062 so that it will be handled in proper sequence. */
1063 /* FIXME broken for --script=FILE - is that supposed to work? */
1064 argv
[skip_args
- 1] = "-scriptload";
1066 sort_args (argc
, argv
);
1069 /* Handle the --help option, which gives a usage message. */
1070 if (argmatch (argv
, argc
, "-help", "--help", 3, NULL
, &skip_args
))
1072 printf (USAGE1
, argv
[0], USAGE2
);
1074 printf (USAGE4
, bug_reporting_address ());
1078 if (argmatch (argv
, argc
, "-daemon", "--daemon", 5, NULL
, &skip_args
))
1087 fprintf (stderr
, "Cannot fork!\n");
1091 nfd
= open ("/dev/null", O_RDWR
);
1101 fprintf (stderr
, "This platform does not support the -daemon flag.\n");
1106 if (! noninteractive
)
1111 inherited_pgroup
= EMACS_GETPGRP (0);
1112 setpgrp (0, getpid ());
1115 #if defined (USG5) && defined (INTERRUPT_INPUT)
1119 #if defined (HAVE_GTK_AND_PTHREAD) && !defined (SYSTEM_MALLOC) && !defined (DOUG_LEA_MALLOC)
1121 extern void malloc_enable_thread
P_ ((void));
1123 malloc_enable_thread ();
1130 /* Don't catch SIGHUP if dumping. */
1137 sigblock (sigmask (SIGHUP
));
1138 /* In --batch mode, don't catch SIGHUP if already ignored.
1139 That makes nohup work. */
1140 if (! noninteractive
1141 || signal (SIGHUP
, SIG_IGN
) != SIG_IGN
)
1142 signal (SIGHUP
, fatal_error_signal
);
1143 sigunblock (sigmask (SIGHUP
));
1148 ! noninteractive
|| initialized
1154 /* Don't catch these signals in batch mode if dumping.
1155 On some machines, this sets static data that would make
1156 signal fail to work right when the dumped Emacs is run. */
1157 signal (SIGQUIT
, fatal_error_signal
);
1158 signal (SIGILL
, fatal_error_signal
);
1159 signal (SIGTRAP
, fatal_error_signal
);
1161 add_user_signal (SIGUSR1
, "sigusr1");
1164 add_user_signal (SIGUSR2
, "sigusr2");
1167 signal (SIGABRT
, fatal_error_signal
);
1170 signal (SIGHWE
, fatal_error_signal
);
1173 signal (SIGPRE
, fatal_error_signal
);
1176 signal (SIGORE
, fatal_error_signal
);
1179 signal (SIGUME
, fatal_error_signal
);
1182 signal (SIGDLK
, fatal_error_signal
);
1185 signal (SIGCPULIM
, fatal_error_signal
);
1188 /* This is missing on some systems - OS/2, for example. */
1189 signal (SIGIOT
, fatal_error_signal
);
1192 signal (SIGEMT
, fatal_error_signal
);
1194 signal (SIGFPE
, fatal_error_signal
);
1196 signal (SIGBUS
, fatal_error_signal
);
1198 signal (SIGSEGV
, fatal_error_signal
);
1200 signal (SIGSYS
, fatal_error_signal
);
1202 signal (SIGTERM
, fatal_error_signal
);
1204 signal (SIGXCPU
, fatal_error_signal
);
1207 signal (SIGXFSZ
, fatal_error_signal
);
1208 #endif /* SIGXFSZ */
1211 /* This just means available memory is getting low. */
1212 signal (SIGDANGER
, memory_warning_signal
);
1216 /* 20 is SIGCHLD, 21 is SIGTTIN, 22 is SIGTTOU. */
1217 signal (SIGXCPU
, fatal_error_signal
);
1219 signal (SIGIOINT
, fatal_error_signal
);
1221 signal (SIGGRANT
, fatal_error_signal
);
1222 signal (SIGRETRACT
, fatal_error_signal
);
1223 signal (SIGSOUND
, fatal_error_signal
);
1224 signal (SIGMSG
, fatal_error_signal
);
1228 noninteractive1
= noninteractive
;
1230 /* Perform basic initializations (not merely interning symbols). */
1237 init_character_once ();
1238 init_charset_once ();
1239 init_coding_once ();
1240 init_syntax_once (); /* Create standard syntax table. */
1241 init_category_once (); /* Create standard category table. */
1242 /* Must be done before init_buffer. */
1243 init_casetab_once ();
1244 init_buffer_once (); /* Create buffer table and some buffers. */
1245 init_minibuf_once (); /* Create list of minibuffers. */
1246 /* Must precede init_window_once. */
1248 /* Call syms_of_xfaces before init_window_once because that
1249 function creates Vterminal_frame. Termcap frames now use
1250 faces, and the face implementation uses some symbols as
1253 /* XXX syms_of_keyboard uses some symbols in keymap.c. It would
1254 be better to arrange things not to have this dependency. */
1256 /* Call syms_of_keyboard before init_window_once because
1257 keyboard sets up symbols that include some face names that
1258 the X support will want to use. This can happen when
1259 CANNOT_DUMP is defined. */
1260 syms_of_keyboard ();
1262 /* Called before syms_of_fileio, because it sets up Qerror_condition. */
1265 /* Before syms_of_coding to initialize Vgc_cons_threshold. */
1267 /* Before syms_of_coding because it initializes Qcharsetp. */
1269 /* Before init_window_once, because it sets up the
1270 Vcoding_system_hash_table. */
1271 syms_of_coding (); /* This should be after syms_of_fileio. */
1273 init_window_once (); /* Init the window system. */
1274 init_fileio_once (); /* Must precede any path manipulation. */
1275 #ifdef HAVE_WINDOW_SYSTEM
1276 init_fringe_once (); /* Swap bitmaps if necessary. */
1277 #endif /* HAVE_WINDOW_SYSTEM */
1282 if (do_initial_setlocale
)
1285 Vsystem_messages_locale
= Vprevious_system_messages_locale
;
1286 Vsystem_time_locale
= Vprevious_system_time_locale
;
1291 #ifdef CLASH_DETECTION
1295 running_asynch_code
= 0;
1297 /* Handle --unibyte and the EMACS_UNIBYTE envvar,
1298 but not while dumping. */
1301 int inhibit_unibyte
= 0;
1303 /* --multibyte overrides EMACS_UNIBYTE. */
1304 if (argmatch (argv
, argc
, "-no-unibyte", "--no-unibyte", 4, NULL
, &skip_args
)
1305 || argmatch (argv
, argc
, "-multibyte", "--multibyte", 4, NULL
, &skip_args
)
1306 /* Ignore EMACS_UNIBYTE before dumping. */
1307 || (!initialized
&& noninteractive
))
1308 inhibit_unibyte
= 1;
1310 /* --unibyte requests that we set up to do everything with single-byte
1311 buffers and strings. We need to handle this before calling
1312 init_lread, init_editfns and other places that generate Lisp strings
1313 from text in the environment. */
1314 /* Actually this shouldn't be needed as of 20.4 in a generally
1315 unibyte environment. As handa says, environment values
1316 aren't now decoded; also existing buffers are now made
1317 unibyte during startup if .emacs sets unibyte. Tested with
1318 8-bit data in environment variables and /etc/passwd, setting
1319 unibyte and Latin-1 in .emacs. -- Dave Love */
1320 if (argmatch (argv
, argc
, "-unibyte", "--unibyte", 4, NULL
, &skip_args
)
1321 || argmatch (argv
, argc
, "-no-multibyte", "--no-multibyte", 4, NULL
, &skip_args
)
1322 || (getenv ("EMACS_UNIBYTE") && !inhibit_unibyte
))
1324 Lisp_Object old_log_max
;
1325 Lisp_Object symbol
, tail
;
1327 symbol
= intern ("default-enable-multibyte-characters");
1328 Fset (symbol
, Qnil
);
1332 /* Erase pre-dump messages in *Messages* now so no abort. */
1333 old_log_max
= Vmessage_log_max
;
1334 XSETFASTINT (Vmessage_log_max
, 0);
1335 message_dolog ("", 0, 1, 0);
1336 Vmessage_log_max
= old_log_max
;
1339 for (tail
= Vbuffer_alist
; CONSP (tail
);
1344 buffer
= Fcdr (XCAR (tail
));
1345 /* Make a multibyte buffer unibyte. */
1346 if (BUF_Z_BYTE (XBUFFER (buffer
)) > BUF_Z (XBUFFER (buffer
)))
1348 struct buffer
*current
= current_buffer
;
1350 set_buffer_temp (XBUFFER (buffer
));
1351 Fset_buffer_multibyte (Qnil
);
1352 set_buffer_temp (current
);
1359 = argmatch (argv
, argc
, "-nl", "--no-loadup", 6, NULL
, &skip_args
);
1362 ns_alloc_autorelease_pool();
1363 if (!noninteractive
)
1367 #ifdef NS_IMPL_COCOA
1368 if (skip_args
< argc
)
1370 if (!strncmp(argv
[skip_args
], "-psn", 4))
1373 chdir (getenv ("HOME"));
1375 else if (skip_args
+1 < argc
&& !strncmp(argv
[skip_args
+1], "-psn", 4))
1378 chdir (getenv ("HOME"));
1382 /* This used for remote operation.. not fully implemented yet. */
1383 if (argmatch (argv
, argc
, "-_NSMachLaunch", 0, 3, &tmp
, &skip_args
))
1385 else if (argmatch (argv
, argc
, "-MachLaunch", 0, 3, &tmp
, &skip_args
))
1387 else if (argmatch (argv
, argc
, "-macosx", 0, 2, NULL
, &skip_args
))
1389 else if (argmatch (argv
, argc
, "-NSHost", 0, 3, &tmp
, &skip_args
))
1392 #endif /* HAVE_NS */
1394 #ifdef HAVE_X_WINDOWS
1395 /* Stupid kludge to catch command-line display spec. We can't
1396 handle this argument entirely in window system dependent code
1397 because we don't even know which window system dependent code
1398 to run until we've recognized this argument. */
1400 char *displayname
= 0;
1401 int count_before
= skip_args
;
1403 /* Skip any number of -d options, but only use the last one. */
1406 int count_before_this
= skip_args
;
1408 if (argmatch (argv
, argc
, "-d", "--display", 3, &displayname
, &skip_args
))
1410 else if (argmatch (argv
, argc
, "-display", 0, 3, &displayname
, &skip_args
))
1415 count_before
= count_before_this
;
1418 /* If we have the form --display=NAME,
1419 convert it into -d name.
1420 This requires inserting a new element into argv. */
1421 if (displayname
!= 0 && skip_args
- count_before
== 1)
1423 char **new = (char **) xmalloc (sizeof (char *) * (argc
+ 2));
1426 for (j
= 0; j
< count_before
+ 1; j
++)
1428 new[count_before
+ 1] = "-d";
1429 new[count_before
+ 2] = displayname
;
1430 for (j
= count_before
+ 2; j
<argc
; j
++)
1431 new[j
+ 1] = argv
[j
];
1435 /* Change --display to -d, when its arg is separate. */
1436 else if (displayname
!= 0 && skip_args
> count_before
1437 && argv
[count_before
+ 1][1] == '-')
1438 argv
[count_before
+ 1] = "-d";
1440 /* Don't actually discard this arg. */
1441 skip_args
= count_before
;
1445 /* argmatch must not be used after here,
1446 except when bulding temacs
1447 because the -d argument has not been skipped in skip_args. */
1450 /* Call early 'cause init_environment needs it. */
1452 /* Set defaults for several environment variables. */
1454 init_environment (argc
, argv
, skip_args
);
1461 /* Initialize environment from registry settings. */
1462 init_environment (argv
);
1463 init_ntproc (); /* must precede init_editfns. */
1473 /* egetenv is a pretty low-level facility, which may get called in
1474 many circumstances; it seems flimsy to put off initializing it
1475 until calling init_callproc. */
1476 set_initial_environment ();
1477 /* AIX crashes are reported in system versions 3.2.3 and 3.2.4
1478 if this is not done. Do it after set_global_environment so that we
1479 don't pollute Vglobal_environment. */
1480 /* Setting LANG here will defeat the startup locale processing... */
1485 init_buffer (); /* Init default directory of main buffer. */
1487 init_callproc_1 (); /* Must precede init_cmdargs and init_sys_modes. */
1488 init_cmdargs (argc
, argv
, skip_args
); /* Must precede init_lread. */
1492 /* Erase any pre-dump messages in the message log, to avoid confusion. */
1493 Lisp_Object old_log_max
;
1494 old_log_max
= Vmessage_log_max
;
1495 XSETFASTINT (Vmessage_log_max
, 0);
1496 message_dolog ("", 0, 1, 0);
1497 Vmessage_log_max
= old_log_max
;
1500 init_callproc (); /* Must follow init_cmdargs but not init_sys_modes. */
1503 /* Intern the names of all standard functions and variables;
1504 define standard keys. */
1508 /* The basic levels of Lisp must come first. */
1509 /* And data must come first of all
1510 for the sake of symbols like error-message. */
1517 syms_of_floatfns ();
1520 syms_of_bytecode ();
1522 syms_of_casefiddle ();
1524 syms_of_callproc ();
1525 syms_of_category ();
1527 syms_of_character ();
1529 #ifndef NO_DIR_LIBRARY
1531 #endif /* not NO_DIR_LIBRARY */
1536 #ifdef CLASH_DETECTION
1537 syms_of_filelock ();
1538 #endif /* CLASH_DETECTION */
1541 /* syms_of_keymap (); */
1549 syms_of_terminal ();
1555 syms_of_textprop ();
1556 syms_of_composite ();
1559 #endif /* WINDOWSNT */
1563 #ifdef HAVE_WINDOW_SYSTEM
1566 #endif /* HAVE_WINDOW_SYSTEM */
1567 #ifdef HAVE_X_WINDOWS
1578 #endif /* HAVE_X_WINDOWS */
1585 syms_of_w32select ();
1588 #endif /* HAVE_NTGUI */
1598 syms_of_nsselect ();
1600 #endif /* HAVE_NS */
1603 syms_of_dbusbind ();
1604 #endif /* HAVE_DBUS */
1614 keys_of_casefiddle ();
1617 keys_of_keyboard ();
1623 /* Initialization that must be done even if the global variable
1624 initialized is non zero. */
1626 globals_of_w32fns ();
1627 globals_of_w32menu ();
1628 globals_of_w32select ();
1629 #endif /* HAVE_NTGUI */
1634 init_editfns (); /* init_process uses Voperating_system_release. */
1635 init_process (); /* init_display uses add_keyboard_wait_descriptor. */
1636 init_keyboard (); /* This too must precede init_sys_modes. */
1637 if (!noninteractive
)
1638 init_display (); /* Determine terminal type. Calls init_sys_modes. */
1641 #ifdef HAVE_WINDOW_SYSTEM
1644 #endif /* HAVE_WINDOW_SYSTEM */
1655 /* Handle -l loadup, args passed by Makefile. */
1656 if (argmatch (argv
, argc
, "-l", "--load", 3, &file
, &skip_args
))
1657 Vtop_level
= Fcons (intern ("load"),
1658 Fcons (build_string (file
), Qnil
));
1659 /* Unless next switch is -nl, load "loadup.el" first thing. */
1661 Vtop_level
= Fcons (intern ("load"),
1662 Fcons (build_string ("loadup.el"), Qnil
));
1669 /* If the execution TZ happens to be the same as the dump TZ,
1670 change it to some other value and then change it back,
1671 to force the underlying implementation to reload the TZ info.
1672 This is needed on implementations that load TZ info from files,
1673 since the TZ file contents may differ between dump and execution. */
1674 char *tz
= getenv ("TZ");
1675 if (tz
&& !strcmp (tz
, dump_tz
))
1685 /* Set up for profiling. This is known to work on FreeBSD,
1686 GNU/Linux and MinGW. It might work on some other systems too.
1687 Give it a try and tell us if it works on your system. To compile
1688 for profiling, add -pg to the switches your platform uses in
1689 CFLAGS and LDFLAGS. For example:
1690 `make CFLAGS="-pg -g -O -DPROFILING=1" LDFLAGS="-pg -g"'. */
1691 #if defined (__FreeBSD__) || defined (GNU_LINUX) || defined(__MINGW32__)
1695 extern void _mcleanup ();
1697 extern unsigned char etext
asm ("etext");
1701 extern void safe_bcopy ();
1702 extern void dump_opcode_frequencies ();
1705 /* This uses safe_bcopy because that function comes first in the
1706 Emacs executable. It might be better to use something that
1707 gives the start of the text segment, but start_of_text is not
1708 defined on all systems now. */
1709 monstartup (safe_bcopy
, &etext
);
1718 #ifdef LOCALTIME_CACHE
1719 /* Some versions of localtime have a bug. They cache the value of the time
1720 zone rather than looking it up every time. Since localtime() is
1721 called to bolt the undumping time into the undumped emacs, this
1722 results in localtime ignoring the TZ environment variable.
1723 This flushes the new TZ value into localtime. */
1725 #endif /* defined (LOCALTIME_CACHE) */
1727 /* Enter editor command loop. This never returns. */
1733 /* Sort the args so we can find the most important ones
1734 at the beginning of argv. */
1736 /* First, here's a table of all the standard options. */
1738 struct standard_args
1746 struct standard_args standard_args
[] =
1748 { "-version", "--version", 150, 0 },
1750 { "-nl", "--no-shared-memory", 140, 0 },
1752 { "-t", "--terminal", 120, 1 },
1753 { "-nw", "--no-window-system", 110, 0 },
1754 { "-nw", "--no-windows", 110, 0 },
1755 { "-batch", "--batch", 100, 0 },
1756 { "-script", "--script", 100, 1 },
1757 { "-daemon", "--daemon", 99, 0 },
1758 { "-help", "--help", 90, 0 },
1759 { "-no-unibyte", "--no-unibyte", 83, 0 },
1760 { "-multibyte", "--multibyte", 82, 0 },
1761 { "-unibyte", "--unibyte", 81, 0 },
1762 { "-no-multibyte", "--no-multibyte", 80, 0 },
1763 { "-nl", "--no-loadup", 70, 0 },
1764 /* -d must come last before the options handled in startup.el. */
1765 { "-d", "--display", 60, 1 },
1766 { "-display", 0, 60, 1 },
1767 /* Now for the options handled in startup.el. */
1768 { "-Q", "--quick", 55, 0 },
1769 { "-quick", 0, 55, 0 },
1770 { "-q", "--no-init-file", 50, 0 },
1771 { "-no-init-file", 0, 50, 0 },
1772 { "-no-site-file", "--no-site-file", 40, 0 },
1773 { "-u", "--user", 30, 1 },
1774 { "-user", 0, 30, 1 },
1775 { "-debug-init", "--debug-init", 20, 0 },
1776 { "-nbi", "--no-bitmap-icon", 15, 0 },
1777 { "-iconic", "--iconic", 15, 0 },
1778 { "-D", "--basic-display", 12, 0},
1779 { "-basic-display", 0, 12, 0},
1780 { "-bg", "--background-color", 10, 1 },
1781 { "-background", 0, 10, 1 },
1782 { "-fg", "--foreground-color", 10, 1 },
1783 { "-foreground", 0, 10, 1 },
1784 { "-bd", "--border-color", 10, 1 },
1785 { "-bw", "--border-width", 10, 1 },
1786 { "-ib", "--internal-border", 10, 1 },
1787 { "-ms", "--mouse-color", 10, 1 },
1788 { "-cr", "--cursor-color", 10, 1 },
1789 { "-nbc", "--no-blinking-cursor", 10, 0 },
1790 { "-fn", "--font", 10, 1 },
1791 { "-font", 0, 10, 1 },
1792 { "-fs", "--fullscreen", 10, 0 },
1793 { "-fw", "--fullwidth", 10, 0 },
1794 { "-fh", "--fullheight", 10, 0 },
1795 { "-g", "--geometry", 10, 1 },
1796 { "-geometry", 0, 10, 1 },
1797 { "-T", "--title", 10, 1 },
1798 { "-title", 0, 10, 1 },
1799 { "-name", "--name", 10, 1 },
1800 { "-xrm", "--xrm", 10, 1 },
1801 { "-parent-id", "--parent-id", 10, 1 },
1802 { "-r", "--reverse-video", 5, 0 },
1804 { "-reverse", 0, 5, 0 },
1805 { "-hb", "--horizontal-scroll-bars", 5, 0 },
1806 { "-vb", "--vertical-scroll-bars", 5, 0 },
1807 { "-color", "--color", 5, 0},
1808 { "-no-splash", "--no-splash", 3, 0 },
1809 { "-no-desktop", "--no-desktop", 3, 0 },
1811 { "-NSAutoLaunch", 0, 5, 1 },
1812 { "-NXAutoLaunch", 0, 5, 1 },
1813 { "-disable-font-backend", "--disable-font-backend", 65, 0 },
1814 { "-_NSMachLaunch", 0, 85, 1 },
1815 { "-MachLaunch", 0, 85, 1 },
1816 { "-macosx", 0, 85, 0 },
1817 { "-NSHost", 0, 85, 1 },
1819 /* These have the same priority as ordinary file name args,
1820 so they are not reordered with respect to those. */
1821 { "-L", "--directory", 0, 1 },
1822 { "-directory", 0, 0, 1 },
1823 { "-l", "--load", 0, 1 },
1824 { "-load", 0, 0, 1 },
1825 /* This has no longname, because using --scriptload confuses sort_args,
1826 because then the --script long option seems to match twice; ie
1827 you can't have a long option which is a prefix of another long
1828 option. In any case, this is entirely an internal option. */
1829 { "-scriptload", NULL
, 0, 1 },
1830 { "-f", "--funcall", 0, 1 },
1831 { "-funcall", 0, 0, 1 },
1832 { "-eval", "--eval", 0, 1 },
1833 { "-execute", "--execute", 0, 1 },
1834 { "-find-file", "--find-file", 0, 1 },
1835 { "-visit", "--visit", 0, 1 },
1836 { "-file", "--file", 0, 1 },
1837 { "-insert", "--insert", 0, 1 },
1839 { "-NXOpen", 0, 0, 1 },
1840 { "-NXOpenTemp", 0, 0, 1 },
1841 { "-NSOpen", 0, 0, 1 },
1842 { "-NSOpenTemp", 0, 0, 1 },
1843 { "-GSFilePath", 0, 0, 1 },
1845 /* This should be processed after ordinary file name args and the like. */
1846 { "-kill", "--kill", -10, 0 },
1849 /* Reorder the elements of ARGV (assumed to have ARGC elements)
1850 so that the highest priority ones come first.
1851 Do not change the order of elements of equal priority.
1852 If an option takes an argument, keep it and its argument together.
1854 If an option that takes no argument appears more
1855 than once, eliminate all but one copy of it. */
1858 sort_args (argc
, argv
)
1862 char **new = (char **) xmalloc (sizeof (char *) * argc
);
1863 /* For each element of argv,
1864 the corresponding element of options is:
1865 0 for an option that takes no arguments,
1866 1 for an option that takes one argument, etc.
1867 -1 for an ordinary non-option argument. */
1868 int *options
= (int *) xmalloc (sizeof (int) * argc
);
1869 int *priority
= (int *) xmalloc (sizeof (int) * argc
);
1871 int incoming_used
= 1;
1875 /* Categorize all the options,
1876 and figure out which argv elts are option arguments. */
1877 for (from
= 1; from
< argc
; from
++)
1881 if (argv
[from
][0] == '-')
1886 /* If we have found "--", don't consider
1887 any more arguments as options. */
1888 if (argv
[from
][1] == '-' && argv
[from
][2] == 0)
1890 /* Leave the "--", and everything following it, at the end. */
1891 for (; from
< argc
; from
++)
1893 priority
[from
] = -100;
1899 /* Look for a match with a known old-fashioned option. */
1900 for (i
= 0; i
< sizeof (standard_args
) / sizeof (standard_args
[0]); i
++)
1901 if (!strcmp (argv
[from
], standard_args
[i
].name
))
1903 options
[from
] = standard_args
[i
].nargs
;
1904 priority
[from
] = standard_args
[i
].priority
;
1905 if (from
+ standard_args
[i
].nargs
>= argc
)
1906 fatal ("Option `%s' requires an argument\n", argv
[from
]);
1907 from
+= standard_args
[i
].nargs
;
1911 /* Look for a match with a known long option.
1912 MATCH is -1 if no match so far, -2 if two or more matches so far,
1913 >= 0 (the table index of the match) if just one match so far. */
1914 if (argv
[from
][1] == '-')
1917 thislen
= strlen (argv
[from
]);
1918 equals
= index (argv
[from
], '=');
1920 thislen
= equals
- argv
[from
];
1923 i
< sizeof (standard_args
) / sizeof (standard_args
[0]); i
++)
1924 if (standard_args
[i
].longname
1925 && !strncmp (argv
[from
], standard_args
[i
].longname
,
1934 /* If we found exactly one match, use that. */
1937 options
[from
] = standard_args
[match
].nargs
;
1938 priority
[from
] = standard_args
[match
].priority
;
1939 /* If --OPTION=VALUE syntax is used,
1940 this option uses just one argv element. */
1943 if (from
+ options
[from
] >= argc
)
1944 fatal ("Option `%s' requires an argument\n", argv
[from
]);
1945 from
+= options
[from
];
1947 /* FIXME When match < 0, shouldn't there be some error,
1948 or at least indication to the user that there was a
1955 /* Copy the arguments, in order of decreasing priority, to NEW. */
1957 while (incoming_used
< argc
)
1960 int best_priority
= -9999;
1962 /* Find the highest priority remaining option.
1963 If several have equal priority, take the first of them. */
1964 for (from
= 1; from
< argc
; from
++)
1966 if (argv
[from
] != 0 && priority
[from
] > best_priority
)
1968 best_priority
= priority
[from
];
1971 /* Skip option arguments--they are tied to the options. */
1972 if (options
[from
] > 0)
1973 from
+= options
[from
];
1979 /* Copy the highest priority remaining option, with its args, to NEW.
1980 Unless it is a duplicate of the previous one. */
1981 if (! (options
[best
] == 0
1982 && ! strcmp (new[to
- 1], argv
[best
])))
1984 new[to
++] = argv
[best
];
1985 for (i
= 0; i
< options
[best
]; i
++)
1986 new[to
++] = argv
[best
+ i
+ 1];
1989 incoming_used
+= 1 + (options
[best
] > 0 ? options
[best
] : 0);
1991 /* Clear out this option in ARGV. */
1993 for (i
= 0; i
< options
[best
]; i
++)
1994 argv
[best
+ i
+ 1] = 0;
1997 /* If duplicate options were deleted, fill up extra space with null ptrs. */
2001 bcopy (new, argv
, sizeof (char *) * argc
);
2008 DEFUN ("kill-emacs", Fkill_emacs
, Skill_emacs
, 0, 1, "P",
2009 doc
: /* Exit the Emacs job and kill it.
2010 If ARG is an integer, return ARG as the exit program code.
2011 If ARG is a string, stuff it as keyboard input.
2013 The value of `kill-emacs-hook', if not void,
2014 is a list of functions (of no args),
2015 all of which are called before Emacs is actually killed. */)
2019 struct gcpro gcpro1
;
2026 if (!NILP (Vrun_hooks
) && !noninteractive
)
2027 call1 (Vrun_hooks
, intern ("kill-emacs-hook"));
2031 shut_down_emacs (0, 0, STRINGP (arg
) ? arg
: Qnil
);
2033 /* If we have an auto-save list file,
2034 kill it because we are exiting Emacs deliberately (not crashing).
2035 Do it after shut_down_emacs, which does an auto-save. */
2036 if (STRINGP (Vauto_save_list_file_name
))
2037 unlink (SDATA (Vauto_save_list_file_name
));
2039 exit (INTEGERP (arg
) ? XINT (arg
) : EXIT_SUCCESS
);
2045 /* Perform an orderly shutdown of Emacs. Autosave any modified
2046 buffers, kill any child processes, clean up the terminal modes (if
2047 we're in the foreground), and other stuff like that. Don't perform
2048 any redisplay; this may be called when Emacs is shutting down in
2049 the background, or after its X connection has died.
2051 If SIG is a signal number, print a message for it.
2053 This is called by fatal signal handlers, X protocol error handlers,
2057 shut_down_emacs (sig
, no_x
, stuff
)
2061 /* Prevent running of hooks from now on. */
2064 /* Don't update display from now on. */
2065 Vinhibit_redisplay
= Qt
;
2067 /* If we are controlling the terminal, reset terminal modes. */
2068 #ifdef EMACS_HAVE_TTY_PGRP
2070 int pgrp
= EMACS_GETPGRP (0);
2073 if (EMACS_GET_TTY_PGRP (0, &tpgrp
) != -1
2076 reset_all_sys_modes ();
2077 if (sig
&& sig
!= SIGTERM
)
2078 fprintf (stderr
, "Fatal error (%d)", sig
);
2083 reset_all_sys_modes ();
2086 stuff_buffered_input (stuff
);
2089 inhibit_sentinels
= 1;
2091 kill_buffer_processes (Qnil
);
2092 Fdo_auto_save (Qt
, Qnil
);
2094 #ifdef CLASH_DETECTION
2095 unlock_all_files ();
2098 #if 0 /* This triggers a bug in XCloseDisplay and is not needed. */
2099 #ifdef HAVE_X_WINDOWS
2100 /* It's not safe to call intern here. Maybe we are crashing. */
2101 if (!noninteractive
&& SYMBOLP (Vinitial_window_system
)
2102 && SCHARS (SYMBOL_NAME (Vinitial_window_system
)) == 1
2103 && SREF (SYMBOL_NAME (Vinitial_window_system
), 0) == 'x'
2105 Fx_close_current_connection ();
2106 #endif /* HAVE_X_WINDOWS */
2110 /* There is a tendency for a SIGIO signal to arrive within exit,
2111 and cause a SIGHUP because the input descriptor is already closed. */
2113 signal (SIGIO
, SIG_IGN
);
2120 /* Do this only if terminating normally, we want glyph matrices
2121 etc. in a core dump. */
2122 if (sig
== 0 || sig
== SIGTERM
)
2124 check_glyph_memory ();
2125 check_message_stack ();
2133 ns_term_shutdown (sig
);
2143 DEFUN ("dump-emacs-data", Fdump_emacs_data
, Sdump_emacs_data
, 1, 1, 0,
2144 doc
: /* Dump current state of Emacs into data file FILENAME.
2145 This function exists on systems that use HAVE_SHM. */)
2147 Lisp_Object filename
;
2149 extern char my_edata
[];
2153 CHECK_STRING (filename
);
2154 filename
= Fexpand_file_name (filename
, Qnil
);
2157 Vpurify_flag
= Qnil
;
2160 /* Tell malloc where start of impure now is. */
2161 /* Also arrange for warnings when nearly out of space. */
2162 #ifndef SYSTEM_MALLOC
2163 memory_warnings (my_edata
, malloc_warning
);
2165 map_out_data (SDATA (filename
));
2172 #else /* not HAVE_SHM */
2174 DEFUN ("dump-emacs", Fdump_emacs
, Sdump_emacs
, 2, 2, 0,
2175 doc
: /* Dump current state of Emacs into executable file FILENAME.
2176 Take symbols from SYMFILE (presumably the file you executed to run Emacs).
2177 This is used in the file `loadup.el' when building Emacs.
2179 You must run Emacs in batch mode in order to dump it. */)
2181 Lisp_Object filename
, symfile
;
2183 extern char my_edata
[];
2186 int count
= SPECPDL_INDEX ();
2190 if (! noninteractive
)
2191 error ("Dumping Emacs works only in batch mode");
2194 if (heap_bss_diff
> MAX_HEAP_BSS_DIFF
)
2196 fprintf (stderr
, "**************************************************\n");
2197 fprintf (stderr
, "Warning: Your system has a gap between BSS and the\n");
2198 fprintf (stderr
, "heap (%lu bytes). This usually means that exec-shield\n",
2200 fprintf (stderr
, "or something similar is in effect. The dump may\n");
2201 fprintf (stderr
, "fail because of this. See the section about\n");
2202 fprintf (stderr
, "exec-shield in etc/PROBLEMS for more information.\n");
2203 fprintf (stderr
, "**************************************************\n");
2205 #endif /* GNU_LINUX */
2207 /* Bind `command-line-processed' to nil before dumping,
2208 so that the dumped Emacs will process its command line
2209 and set up to work with X windows if appropriate. */
2210 symbol
= intern ("command-line-processed");
2211 specbind (symbol
, Qnil
);
2213 CHECK_STRING (filename
);
2214 filename
= Fexpand_file_name (filename
, Qnil
);
2215 if (!NILP (symfile
))
2217 CHECK_STRING (symfile
);
2218 if (SCHARS (symfile
))
2219 symfile
= Fexpand_file_name (symfile
, Qnil
);
2223 Vpurify_flag
= Qnil
;
2226 set_time_zone_rule (dump_tz
);
2227 #ifndef LOCALTIME_CACHE
2228 /* Force a tz reload, since set_time_zone_rule doesn't. */
2234 /* Tell malloc where start of impure now is. */
2235 /* Also arrange for warnings when nearly out of space. */
2236 #ifndef SYSTEM_MALLOC
2238 /* On Windows, this was done before dumping, and that once suffices.
2239 Meanwhile, my_edata is not valid on Windows. */
2240 memory_warnings (my_edata
, malloc_warning
);
2241 #endif /* not WINDOWSNT */
2243 #if !defined (SYSTEM_MALLOC) && defined (HAVE_GTK_AND_PTHREAD) && !defined SYNC_INPUT
2244 /* Pthread may call malloc before main, and then we will get an endless
2245 loop, because pthread_self (see alloc.c) calls malloc the first time
2246 it is called on some systems. */
2247 reset_malloc_hooks ();
2249 #ifdef DOUG_LEA_MALLOC
2250 malloc_state_ptr
= malloc_get_state ();
2253 #ifdef USE_MMAP_FOR_BUFFERS
2256 unexec (SDATA (filename
),
2257 !NILP (symfile
) ? SDATA (symfile
) : 0, my_edata
, 0, 0);
2258 #ifdef USE_MMAP_FOR_BUFFERS
2261 #ifdef DOUG_LEA_MALLOC
2262 free (malloc_state_ptr
);
2267 return unbind_to (count
, Qnil
);
2270 #endif /* not HAVE_SHM */
2272 #endif /* not CANNOT_DUMP */
2275 /* Recover from setlocale (LC_ALL, ""). */
2279 /* The Emacs Lisp reader needs LC_NUMERIC to be "C",
2280 so that numbers are read and printed properly for Emacs Lisp. */
2281 setlocale (LC_NUMERIC
, "C");
2284 /* Set system locale CATEGORY, with previous locale *PLOCALE, to
2287 synchronize_locale (category
, plocale
, desired_locale
)
2289 Lisp_Object
*plocale
;
2290 Lisp_Object desired_locale
;
2292 if (! EQ (*plocale
, desired_locale
))
2294 *plocale
= desired_locale
;
2295 setlocale (category
, (STRINGP (desired_locale
)
2296 ? (char *) SDATA (desired_locale
)
2301 /* Set system time locale to match Vsystem_time_locale, if possible. */
2303 synchronize_system_time_locale ()
2305 synchronize_locale (LC_TIME
, &Vprevious_system_time_locale
,
2306 Vsystem_time_locale
);
2309 /* Set system messages locale to match Vsystem_messages_locale, if
2312 synchronize_system_messages_locale ()
2315 synchronize_locale (LC_MESSAGES
, &Vprevious_system_messages_locale
,
2316 Vsystem_messages_locale
);
2319 #endif /* HAVE_SETLOCALE */
2326 decode_env_path (evarname
, defalt
)
2327 char *evarname
, *defalt
;
2329 register char *path
, *p
;
2330 Lisp_Object lpath
, element
, tem
;
2332 /* It's okay to use getenv here, because this function is only used
2333 to initialize variables when Emacs starts up, and isn't called
2336 path
= (char *) getenv (evarname
);
2342 /* Ensure values from the environment use the proper directory separator. */
2345 p
= alloca (strlen (path
) + 1);
2349 if ('/' == DIRECTORY_SEP
)
2350 dostounix_filename (path
);
2352 unixtodos_filename (path
);
2358 p
= index (path
, SEPCHAR
);
2359 if (!p
) p
= path
+ strlen (path
);
2360 element
= (p
- path
? make_string (path
, p
- path
)
2361 : build_string ("."));
2363 /* Add /: to the front of the name
2364 if it would otherwise be treated as magic. */
2365 tem
= Ffind_file_name_handler (element
, Qt
);
2367 /* However, if the handler says "I'm safe",
2368 don't bother adding /:. */
2372 prop
= Fget (tem
, intern ("safe-magic"));
2378 element
= concat2 (build_string ("/:"), element
);
2380 lpath
= Fcons (element
, lpath
);
2386 return Fnreverse (lpath
);
2389 DEFUN ("daemonp", Fdaemonp
, Sdaemonp
, 0, 0, 0,
2390 doc
: /* Return t if the current emacs process is a daemon. */)
2393 return is_daemon
? Qt
: Qnil
;
2399 Qfile_name_handler_alist
= intern ("file-name-handler-alist");
2400 staticpro (&Qfile_name_handler_alist
);
2404 defsubr (&Sdump_emacs_data
);
2406 defsubr (&Sdump_emacs
);
2410 defsubr (&Skill_emacs
);
2412 defsubr (&Sinvocation_name
);
2413 defsubr (&Sinvocation_directory
);
2414 defsubr (&Sdaemonp
);
2416 DEFVAR_LISP ("command-line-args", &Vcommand_line_args
,
2417 doc
: /* Args passed by shell to Emacs, as a list of strings.
2418 Many arguments are deleted from the list as they are processed. */);
2420 DEFVAR_LISP ("system-type", &Vsystem_type
,
2421 doc
: /* Value is symbol indicating type of operating system you are using.
2423 `gnu' compiled for a GNU Hurd system.
2424 `gnu/linux' compiled for a GNU/Linux system.
2425 `darwin' compiled for Darwin (GNU-Darwin, Mac OS X, ...).
2426 `ms-dos' compiled as an MS-DOS application.
2427 `windows-nt' compiled as a native W32 application.
2428 `cygwin' compiled using the Cygwin library.
2429 Anything else indicates some sort of Unix system. */);
2430 Vsystem_type
= intern (SYSTEM_TYPE
);
2432 DEFVAR_LISP ("system-configuration", &Vsystem_configuration
,
2433 doc
: /* Value is string indicating configuration Emacs was built for.
2434 On MS-Windows, the value reflects the OS flavor and version on which
2435 Emacs is running. */);
2436 Vsystem_configuration
= build_string (EMACS_CONFIGURATION
);
2438 DEFVAR_LISP ("system-configuration-options", &Vsystem_configuration_options
,
2439 doc
: /* String containing the configuration options Emacs was built with. */);
2440 Vsystem_configuration_options
= build_string (EMACS_CONFIG_OPTIONS
);
2442 DEFVAR_BOOL ("noninteractive", &noninteractive1
,
2443 doc
: /* Non-nil means Emacs is running without interactive terminal. */);
2445 DEFVAR_LISP ("kill-emacs-hook", &Vkill_emacs_hook
,
2446 doc
: /* Hook to be run when `kill-emacs' is called.
2447 Since `kill-emacs' may be invoked when the terminal is disconnected (or
2448 in other similar situations), functions placed on this hook should not
2449 expect to be able to interact with the user. To ask for confirmation,
2450 see `kill-emacs-query-functions' instead.
2452 The hook is not run in batch mode, i.e., if `noninteractive' is non-nil. */);
2453 Vkill_emacs_hook
= Qnil
;
2455 DEFVAR_INT ("emacs-priority", &emacs_priority
,
2456 doc
: /* Priority for Emacs to run at.
2457 This value is effective only if set before Emacs is dumped,
2458 and only if the Emacs executable is installed with setuid to permit
2459 it to change priority. (Emacs sets its uid back to the real uid.)
2460 Currently, you need to define SET_EMACS_PRIORITY in `config.h'
2461 before you compile Emacs, to enable the code for this feature. */);
2464 DEFVAR_LISP ("path-separator", &Vpath_separator
,
2465 doc
: /* String containing the character that separates directories in
2466 search paths, such as PATH and other similar environment variables. */);
2469 Vpath_separator
= make_string (&c
, 1);
2472 DEFVAR_LISP ("invocation-name", &Vinvocation_name
,
2473 doc
: /* The program name that was used to run Emacs.
2474 Any directory names are omitted. */);
2476 DEFVAR_LISP ("invocation-directory", &Vinvocation_directory
,
2477 doc
: /* The directory in which the Emacs executable was found, to run it.
2478 The value is nil if that directory's name is not known. */);
2480 DEFVAR_LISP ("installation-directory", &Vinstallation_directory
,
2481 doc
: /* A directory within which to look for the `lib-src' and `etc' directories.
2482 This is non-nil when we can't find those directories in their standard
2483 installed locations, but we can find them near where the Emacs executable
2485 Vinstallation_directory
= Qnil
;
2487 DEFVAR_LISP ("system-messages-locale", &Vsystem_messages_locale
,
2488 doc
: /* System locale for messages. */);
2489 Vsystem_messages_locale
= Qnil
;
2491 DEFVAR_LISP ("previous-system-messages-locale",
2492 &Vprevious_system_messages_locale
,
2493 doc
: /* Most recently used system locale for messages. */);
2494 Vprevious_system_messages_locale
= Qnil
;
2496 DEFVAR_LISP ("system-time-locale", &Vsystem_time_locale
,
2497 doc
: /* System locale for time. */);
2498 Vsystem_time_locale
= Qnil
;
2500 DEFVAR_LISP ("previous-system-time-locale", &Vprevious_system_time_locale
,
2501 doc
: /* Most recently used system locale for time. */);
2502 Vprevious_system_time_locale
= Qnil
;
2504 DEFVAR_LISP ("before-init-time", &Vbefore_init_time
,
2505 doc
: /* Value of `current-time' before Emacs begins initialization. */);
2506 Vbefore_init_time
= Qnil
;
2508 DEFVAR_LISP ("after-init-time", &Vafter_init_time
,
2509 doc
: /* Value of `current-time' after loading the init files.
2510 This is nil during initialization. */);
2511 Vafter_init_time
= Qnil
;
2514 /* arch-tag: 7bfd356a-c720-4612-8ab6-aa4222931c2e
2515 (do not change this comment) */