1 /* Fully extensible Emacs, running on Unix, intended for GNU.
2 Copyright (C) 1985, 1986, 1987, 1993, 1994, 1995, 1997, 1998, 1999,
3 2001, 2002, 2003, 2004, 2005, 2006, 2007 Free Software Foundation, Inc.
5 This file is part of GNU Emacs.
7 GNU Emacs is free software; you can redistribute it and/or modify
8 it under the terms of the GNU General Public License as published by
9 the Free Software Foundation; either version 2, or (at your option)
12 GNU Emacs is distributed in the hope that it will be useful,
13 but WITHOUT ANY WARRANTY; without even the implied warranty of
14 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
15 GNU General Public License for more details.
17 You should have received a copy of the GNU General Public License
18 along with GNU Emacs; see the file COPYING. If not, write to
19 the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
20 Boston, MA 02110-1301, USA. */
28 #include <sys/types.h>
40 #include <sys/ioctl.h>
45 #include <windows.h> /* just for w32.h */
47 #include "w32heap.h" /* for prototype of sbrk */
52 #include "intervals.h"
57 #include "blockinput.h"
58 #include "syssignal.h"
61 #include "termhooks.h"
71 #include <sys/resource.h>
74 #ifdef HAVE_PERSONALITY_LINUX32
75 #include <sys/personality.h>
83 #if !defined (USG) || defined (BSD_PGRPS)
85 #define setpgrp setpgid
89 extern void malloc_warning
P_ ((char *));
90 extern void set_time_zone_rule
P_ ((char *));
92 extern char *index
P_ ((const char *, int));
95 /* Make these values available in GDB, which doesn't see macros. */
103 int gdb_use_union
= 0;
105 int gdb_use_union
= 1;
107 EMACS_INT gdb_valbits
= VALBITS
;
108 EMACS_INT gdb_gctypebits
= GCTYPEBITS
;
110 EMACS_INT gdb_data_seg_bits
= DATA_SEG_BITS
;
112 EMACS_INT gdb_data_seg_bits
= 0;
114 EMACS_INT PVEC_FLAG
= PSEUDOVECTOR_FLAG
;
115 EMACS_INT gdb_array_mark_flag
= ARRAY_MARK_FLAG
;
116 /* GDB might say "No enum type named pvec_type" if we don't have at
117 least one symbol with that type, and then xbacktrace could fail. */
118 enum pvec_type gdb_pvec_type
= PVEC_TYPE_MASK
;
120 /* Command line args from shell, as list of strings. */
121 Lisp_Object Vcommand_line_args
;
123 /* The name under which Emacs was invoked, with any leading directory
125 Lisp_Object Vinvocation_name
;
127 /* The directory name from which Emacs was invoked. */
128 Lisp_Object Vinvocation_directory
;
130 /* The directory name in which to find subdirs such as lisp and etc.
131 nil means get them only from PATH_LOADSEARCH. */
132 Lisp_Object Vinstallation_directory
;
134 /* Hook run by `kill-emacs' before it does really anything. */
135 Lisp_Object Vkill_emacs_hook
;
137 /* An empty lisp string. To avoid having to build any other. */
138 Lisp_Object empty_string
;
140 /* Search path separator. */
141 Lisp_Object Vpath_separator
;
143 /* Set nonzero after Emacs has started up the first time.
144 Prevents reinitialization of the Lisp world and keymaps
145 on subsequent starts. */
148 #ifdef DOUG_LEA_MALLOC
149 /* Preserves a pointer to the memory allocated that copies that
150 static data inside glibc's malloc. */
151 void *malloc_state_ptr
;
152 /* From glibc, a routine that returns a copy of the malloc internal state. */
153 extern void *malloc_get_state ();
154 /* From glibc, a routine that overwrites the malloc internal state. */
155 extern int malloc_set_state ();
156 /* Non-zero if the MALLOC_CHECK_ enviroment variable was set while
157 dumping. Used to work around a bug in glibc's malloc. */
158 int malloc_using_checking
;
161 /* Variable whose value is symbol giving operating system type. */
162 Lisp_Object Vsystem_type
;
164 /* Variable whose value is string giving configuration built for. */
165 Lisp_Object Vsystem_configuration
;
167 /* Variable whose value is string giving configuration options,
168 for use when reporting bugs. */
169 Lisp_Object Vsystem_configuration_options
;
171 Lisp_Object Qfile_name_handler_alist
;
173 /* Current and previous system locales for messages and time. */
174 Lisp_Object Vsystem_messages_locale
;
175 Lisp_Object Vprevious_system_messages_locale
;
176 Lisp_Object Vsystem_time_locale
;
177 Lisp_Object Vprevious_system_time_locale
;
179 /* If non-zero, emacs should not attempt to use a window-specific code,
180 but instead should use the virtual terminal under which it was started. */
181 int inhibit_window_system
;
183 /* If nonzero, set Emacs to run at this priority. This is also used
184 in child_setup and sys_suspend to make sure subshells run at normal
185 priority; those functions have their own extern declaration. */
186 EMACS_INT emacs_priority
;
188 /* If non-zero, a filter or a sentinel is running. Tested to save the match
189 data on the first attempt to change it inside asynchronous code. */
190 int running_asynch_code
;
194 extern int inherited_pgroup
;
197 #ifdef HAVE_X_WINDOWS
198 /* If non-zero, -d was specified, meaning we're using some window system. */
202 /* An address near the bottom of the stack.
203 Tells GC how to save a copy of the stack. */
206 /* The address where the heap starts (from the first sbrk (0) call). */
207 static void *my_heap_start
;
209 /* The gap between BSS end and heap start as far as we can tell. */
210 static unsigned long heap_bss_diff
;
212 /* If the gap between BSS end and heap start is larger than this we try to
213 work around it, and if that fails, output a warning in dump-emacs. */
214 #define MAX_HEAP_BSS_DIFF (1024*1024)
217 #ifdef HAVE_WINDOW_SYSTEM
218 extern Lisp_Object Vinitial_window_system
;
219 #endif /* HAVE_WINDOW_SYSTEM */
221 extern Lisp_Object Vauto_save_list_file_name
;
223 extern Lisp_Object Vinhibit_redisplay
;
225 #ifdef USG_SHARED_LIBRARIES
226 /* If nonzero, this is the place to put the end of the writable segment
229 unsigned int bss_end
= 0;
232 /* Nonzero means running Emacs without interactive terminal. */
236 /* Value of Lisp variable `noninteractive'.
237 Normally same as C variable `noninteractive'
238 but nothing terrible happens if user sets this one. */
242 /* Save argv and argc. */
246 static void sort_args ();
247 void syms_of_emacs ();
249 /* MSVC needs each string be shorter than 2048 bytes, so the usage
250 strings below are split to not overflow this limit. */
252 Usage: %s [OPTION-OR-FILENAME]...\n\
254 Run Emacs, the extensible, customizable, self-documenting real-time\n\
255 display editor. The recommended way to start Emacs for normal editing\n\
256 is with no options at all.\n\
258 Run M-x info RET m emacs RET m emacs invocation RET inside Emacs to\n\
259 read the main documentation for these command-line arguments.\n\
261 Initialization options:\n\
263 --batch do not do interactive display; implies -q\n\
264 --debug-init enable Emacs Lisp debugger for init file\n\
265 --display, -d DISPLAY use X server DISPLAY\n\
266 --multibyte, --no-unibyte inhibit the effect of EMACS_UNIBYTE\n\
267 --no-desktop do not load a saved desktop\n\
268 --no-init-file, -q load neither ~/.emacs nor default.el\n\
269 --no-shared-memory, -nl do not use shared memory\n\
270 --no-site-file do not load site-start.el\n\
271 --no-splash do not display a splash screen on startup\n\
272 --no-window-system, -nw do not communicate with X, ignoring $DISPLAY\n\
273 --quick, -Q equivalent to -q --no-site-file --no-splash\n\
274 --script FILE run FILE as an Emacs Lisp script\n\
275 --terminal, -t DEVICE use DEVICE for terminal I/O\n\
276 --unibyte, --no-multibyte run Emacs in unibyte mode\n\
277 --user, -u USER load ~USER/.emacs instead of your own\n\
283 FILE visit FILE using find-file\n\
284 +LINE FILE visit FILE using find-file, then go to line LINE\n\
285 +LINE:COLUMN FILE visit FILE using find-file, then go to line LINE,\n\
287 --directory, -L DIR add DIR to variable load-path\n\
288 --eval EXPR evaluate Emacs Lisp expression EXPR\n\
289 --execute EXPR evaluate Emacs Lisp expression EXPR\n\
290 --file FILE visit FILE using find-file\n\
291 --find-file FILE visit FILE using find-file\n\
292 --funcall, -f FUNC call Emacs Lisp function FUNC with no arguments\n\
293 --insert FILE insert contents of FILE into current buffer\n\
294 --kill exit without asking for confirmation\n\
295 --load, -l FILE load Emacs Lisp FILE using the load function\n\
296 --visit FILE visit FILE using find-file\n\
302 --background-color, -bg COLOR window background color\n\
303 --basic-display, -D disable many display features;\n\
304 used for debugging Emacs\n\
305 --border-color, -bd COLOR main border color\n\
306 --border-width, -bw WIDTH width of main border\n\
307 --color, --color=MODE override color mode for character terminals;\n\
308 MODE defaults to `auto', and can also\n\
309 be `never', `auto', `always',\n\
310 or a mode name like `ansi8'\n\
311 --cursor-color, -cr COLOR color of the Emacs cursor indicating point\n\
312 --font, -fn FONT default font; must be fixed-width\n\
313 --foreground-color, -fg COLOR window foreground color\n\
314 --fullheight, -fh make the first frame high as the screen\n\
315 --fullscreen, -fs make first frame fullscreen\n\
316 --fullwidth, -fw make the first frame wide as the screen\n\
317 --geometry, -g GEOMETRY window geometry\n\
318 --no-bitmap-icon, -nbi do not use picture of gnu for Emacs icon\n\
319 --iconic start Emacs in iconified state\n\
320 --internal-border, -ib WIDTH width between text and main border\n\
321 --line-spacing, -lsp PIXELS additional space to put between lines\n\
322 --mouse-color, -ms COLOR mouse cursor color in Emacs window\n\
323 --name NAME title for initial Emacs frame\n\
324 --no-blinking-cursor, -nbc disable blinking cursor\n\
325 --reverse-video, -r, -rv switch foreground and background\n\
326 --title, -T TITLE title for initial Emacs frame\n\
327 --vertical-scroll-bars, -vb enable vertical scroll bars\n\
328 --xrm XRESOURCES set additional X resources\n\
329 --help display this help and exit\n\
330 --version output version information and exit\n\
334 You can generally also specify long option names with a single -; for\n\
335 example, -batch as well as --batch. You can use any unambiguous\n\
336 abbreviation for a --option.\n\
338 Various environment variables and window system resources also affect\n\
339 Emacs' operation. See the main documentation.\n\
341 Report bugs to %s. First, please see the Bugs\n\
342 section of the Emacs manual or the file BUGS.\n"
345 /* Signal code for the fatal signal that was received. */
346 int fatal_error_code
;
348 /* Nonzero if handling a fatal error already. */
349 int fatal_error_in_progress
;
351 /* If non-null, call this function from fatal_error_signal before
352 committing suicide. */
354 void (*fatal_error_signal_hook
) P_ ((void));
356 #ifdef HAVE_GTK_AND_PTHREAD
357 /* When compiled with GTK and running under Gnome, multiple threads meay be
358 created. Keep track of our main thread to make sure signals are delivered
359 to it (see syssignal.h). */
361 pthread_t main_thread
;
365 /* Handle bus errors, invalid instruction, etc. */
367 fatal_error_signal (sig
)
370 SIGNAL_THREAD_CHECK (sig
);
371 fatal_error_code
= sig
;
372 signal (sig
, SIG_DFL
);
374 TOTALLY_UNBLOCK_INPUT
;
376 /* If fatal error occurs in code below, avoid infinite recursion. */
377 if (! fatal_error_in_progress
)
379 fatal_error_in_progress
= 1;
381 shut_down_emacs (sig
, 0, Qnil
);
385 LIB$
STOP (SS$_ABORT
);
387 /* Signal the same code; this time it will really be fatal.
388 Remember that since we're in a signal handler, the signal we're
389 going to send is probably blocked, so we have to unblock it if we
390 want to really receive it. */
392 sigunblock (sigmask (fatal_error_code
));
395 if (fatal_error_signal_hook
)
396 fatal_error_signal_hook ();
398 kill (getpid (), fatal_error_code
);
404 /* Handler for SIGDANGER. */
406 memory_warning_signal (sig
)
409 signal (sig
, memory_warning_signal
);
410 SIGNAL_THREAD_CHECK (sig
);
412 malloc_warning ("Operating system warns that virtual memory is running low.\n");
414 /* It might be unsafe to call do_auto_save now. */
415 force_auto_save_soon ();
419 /* We define abort, rather than using it from the library,
420 so that GDB can return from a breakpoint here.
421 MSDOS has its own definition in msdos.c. */
423 #if ! defined (DOS_NT) && ! defined (NO_ABORT)
425 #ifndef ABORT_RETURN_TYPE
426 #define ABORT_RETURN_TYPE void
432 kill (getpid (), SIGABRT
);
433 /* This shouldn't be executed, but it prevents a warning. */
439 /* Code for dealing with Lisp access to the Unix command line. */
442 init_cmdargs (argc
, argv
, skip_args
)
448 Lisp_Object name
, dir
, tem
;
449 int count
= SPECPDL_INDEX ();
450 Lisp_Object raw_name
;
455 raw_name
= build_string (argv
[0]);
457 /* Add /: to the front of the name
458 if it would otherwise be treated as magic. */
459 tem
= Ffind_file_name_handler (raw_name
, Qt
);
461 raw_name
= concat2 (build_string ("/:"), raw_name
);
463 Vinvocation_name
= Ffile_name_nondirectory (raw_name
);
464 Vinvocation_directory
= Ffile_name_directory (raw_name
);
466 /* If we got no directory in argv[0], search PATH to find where
467 Emacs actually came from. */
468 if (NILP (Vinvocation_directory
))
471 int yes
= openp (Vexec_path
, Vinvocation_name
,
472 Vexec_suffixes
, &found
, make_number (X_OK
));
475 /* Add /: to the front of the name
476 if it would otherwise be treated as magic. */
477 tem
= Ffind_file_name_handler (found
, Qt
);
479 found
= concat2 (build_string ("/:"), found
);
480 Vinvocation_directory
= Ffile_name_directory (found
);
484 if (!NILP (Vinvocation_directory
)
485 && NILP (Ffile_name_absolute_p (Vinvocation_directory
)))
486 /* Emacs was started with relative path, like ./emacs.
488 Vinvocation_directory
= Fexpand_file_name (Vinvocation_directory
, Qnil
);
490 Vinstallation_directory
= Qnil
;
492 if (!NILP (Vinvocation_directory
))
494 dir
= Vinvocation_directory
;
495 name
= Fexpand_file_name (Vinvocation_name
, dir
);
498 Lisp_Object tem
, lib_src_exists
;
499 Lisp_Object etc_exists
, info_exists
;
501 /* See if dir contains subdirs for use by Emacs.
502 Check for the ones that would exist in a build directory,
503 not including lisp and info. */
504 tem
= Fexpand_file_name (build_string ("lib-src"), dir
);
505 lib_src_exists
= Ffile_exists_p (tem
);
508 /* MSDOS installations frequently remove lib-src, but we still
509 must set installation-directory, or else info won't find
510 its files (it uses the value of installation-directory). */
511 tem
= Fexpand_file_name (build_string ("info"), dir
);
512 info_exists
= Ffile_exists_p (tem
);
517 if (!NILP (lib_src_exists
) || !NILP (info_exists
))
519 tem
= Fexpand_file_name (build_string ("etc"), dir
);
520 etc_exists
= Ffile_exists_p (tem
);
521 if (!NILP (etc_exists
))
523 Vinstallation_directory
524 = Ffile_name_as_directory (dir
);
529 /* See if dir's parent contains those subdirs. */
530 tem
= Fexpand_file_name (build_string ("../lib-src"), dir
);
531 lib_src_exists
= Ffile_exists_p (tem
);
535 /* See the MSDOS commentary above. */
536 tem
= Fexpand_file_name (build_string ("../info"), dir
);
537 info_exists
= Ffile_exists_p (tem
);
542 if (!NILP (lib_src_exists
) || !NILP (info_exists
))
544 tem
= Fexpand_file_name (build_string ("../etc"), dir
);
545 etc_exists
= Ffile_exists_p (tem
);
546 if (!NILP (etc_exists
))
548 tem
= Fexpand_file_name (build_string (".."), dir
);
549 Vinstallation_directory
550 = Ffile_name_as_directory (tem
);
555 /* If the Emacs executable is actually a link,
556 next try the dir that the link points into. */
557 tem
= Ffile_symlink_p (name
);
560 name
= Fexpand_file_name (tem
, dir
);
561 dir
= Ffile_name_directory (name
);
568 Vcommand_line_args
= Qnil
;
570 for (i
= argc
- 1; i
>= 0; i
--)
572 if (i
== 0 || i
> skip_args
)
573 /* For the moment, we keep arguments as is in unibyte strings.
574 They are decoded in the function command-line after we know
575 locale-coding-system. */
577 = Fcons (make_unibyte_string (argv
[i
], strlen (argv
[i
])),
581 unbind_to (count
, Qnil
);
584 DEFUN ("invocation-name", Finvocation_name
, Sinvocation_name
, 0, 0, 0,
585 doc
: /* Return the program name that was used to run Emacs.
586 Any directory names are omitted. */)
589 return Fcopy_sequence (Vinvocation_name
);
592 DEFUN ("invocation-directory", Finvocation_directory
, Sinvocation_directory
,
594 doc
: /* Return the directory name in which the Emacs executable was located. */)
597 return Fcopy_sequence (Vinvocation_directory
);
602 #ifdef LINK_CRTL_SHARE
603 #ifdef SHARABLE_LIB_BUG
604 extern noshare
char **environ
;
605 #endif /* SHARABLE_LIB_BUG */
606 #endif /* LINK_CRTL_SHARE */
610 /* A valid but unlikely value for the TZ environment value.
611 It is OK (though a bit slower) if the user actually chooses this value. */
612 static char dump_tz
[] = "UtC0";
615 #ifndef ORDINARY_LINK
616 /* We don't include crtbegin.o and crtend.o in the link,
617 so these functions and variables might be missed.
618 Provide dummy definitions to avoid error.
619 (We don't have any real constructors or destructors.) */
621 #ifndef GCC_CTORS_IN_LIBC
622 void __do_global_ctors ()
624 void __do_global_ctors_aux ()
626 void __do_global_dtors ()
628 /* GNU/Linux has a bug in its library; avoid an error. */
630 char * __CTOR_LIST__
[2] = { (char *) (-1), 0 };
632 char * __DTOR_LIST__
[2] = { (char *) (-1), 0 };
633 #endif /* GCC_CTORS_IN_LIBC */
636 #endif /* __GNUC__ */
637 #endif /* ORDINARY_LINK */
639 /* Test whether the next argument in ARGV matches SSTR or a prefix of
640 LSTR (at least MINLEN characters). If so, then if VALPTR is non-null
641 (the argument is supposed to have a value) store in *VALPTR either
642 the next argument or the portion of this one after the equal sign.
643 ARGV is read starting at position *SKIPPTR; this index is advanced
644 by the number of arguments used.
646 Too bad we can't just use getopt for all of this, but we don't have
647 enough information to do it right. */
650 argmatch (argv
, argc
, sstr
, lstr
, minlen
, valptr
, skipptr
)
663 /* Don't access argv[argc]; give up in advance. */
664 if (argc
<= *skipptr
+ 1)
667 arg
= argv
[*skipptr
+1];
670 if (strcmp (arg
, sstr
) == 0)
674 *valptr
= argv
[*skipptr
+2];
681 arglen
= (valptr
!= NULL
&& (p
= index (arg
, '=')) != NULL
682 ? p
- arg
: strlen (arg
));
683 if (lstr
== 0 || arglen
< minlen
|| strncmp (arg
, lstr
, arglen
) != 0)
685 else if (valptr
== NULL
)
696 else if (argv
[*skipptr
+2] != NULL
)
698 *valptr
= argv
[*skipptr
+2];
708 #ifdef DOUG_LEA_MALLOC
710 /* malloc can be invoked even before main (e.g. by the dynamic
711 linker), so the dumped malloc state must be restored as early as
712 possible using this special hook. */
715 malloc_initialize_hook ()
718 extern char **environ
;
723 if (!malloc_using_checking
)
724 /* Work around a bug in glibc's malloc. MALLOC_CHECK_ must be
725 ignored if the heap to be restored was constructed without
726 malloc checking. Can't use unsetenv, since that calls malloc. */
730 for (p
= environ
; p
&& *p
; p
++)
731 if (strncmp (*p
, "MALLOC_CHECK_=", 14) == 0)
740 malloc_set_state (malloc_state_ptr
);
741 #ifndef XMALLOC_OVERRUN_CHECK
742 free (malloc_state_ptr
);
747 if (my_heap_start
== 0)
748 my_heap_start
= sbrk (0);
749 malloc_using_checking
= getenv ("MALLOC_CHECK_") != NULL
;
753 void (*__malloc_initialize_hook
) () = malloc_initialize_hook
;
755 #endif /* DOUG_LEA_MALLOC */
758 #define REPORT_EMACS_BUG_ADDRESS "bug-gnu-emacs@gnu.org"
759 #define REPORT_EMACS_BUG_PRETEST_ADDRESS "multi-tty@lists.fnord.hu"
761 /* This function is used to determine an address to which bug report should
765 bug_reporting_address ()
771 temp
= Fsymbol_value (intern ("emacs-version"));
773 /* When `emacs-version' is invalid, use normal address. */
775 return REPORT_EMACS_BUG_ADDRESS
;
777 string
= SDATA (temp
);
779 /* Count dots in `emacs-version'. */
787 /* When `emacs-version' has at least three dots, it is development or
788 pretest version of Emacs. */
789 return count
>= 3 ? REPORT_EMACS_BUG_PRETEST_ADDRESS
: REPORT_EMACS_BUG_ADDRESS
;
809 char stack_bottom_variable
;
810 int do_initial_setlocale
;
815 #ifdef HAVE_SETRLIMIT
822 extern Lisp_Object
*stack_base
;
828 extern char my_endbss
[];
829 extern char *my_endbss_static
;
831 if (my_heap_start
== 0)
832 my_heap_start
= sbrk (0);
834 heap_bss_diff
= (char *)my_heap_start
- max (my_endbss
, my_endbss_static
);
837 #ifdef LINUX_SBRK_BUG
841 #ifdef RUN_TIME_REMAP
843 run_time_remap (argv
[0]);
848 unexec_init_emacs_zone ();
851 sort_args (argc
, argv
);
853 while (argv
[argc
]) argc
++;
855 if (argmatch (argv
, argc
, "-version", "--version", 3, NULL
, &skip_args
)
856 /* We don't know the version number unless this is a dumped Emacs.
857 So ignore --version otherwise. */
861 tem
= Fsymbol_value (intern ("emacs-version"));
864 fprintf (stderr
, "Invalid value of `emacs-version'\n");
869 printf ("GNU Emacs %s\n", SDATA (tem
));
870 printf ("Copyright (C) 2007 Free Software Foundation, Inc.\n");
871 printf ("GNU Emacs comes with ABSOLUTELY NO WARRANTY.\n");
872 printf ("You may redistribute copies of Emacs\n");
873 printf ("under the terms of the GNU General Public License.\n");
874 printf ("For more information about these matters, ");
875 printf ("see the file named COPYING.\n");
880 #ifdef HAVE_PERSONALITY_LINUX32
881 /* See if there is a gap between the end of BSS and the heap.
882 In that case, set personality and exec ourself again. */
884 && (strcmp (argv
[argc
-1], "dump") == 0
885 || strcmp (argv
[argc
-1], "bootstrap") == 0)
886 && heap_bss_diff
> MAX_HEAP_BSS_DIFF
)
888 if (! getenv ("EMACS_HEAP_EXEC"))
890 /* Set this so we only do this once. */
891 putenv("EMACS_HEAP_EXEC=true");
893 /* A flag to turn off address randomization which is introduced
894 in linux kernel shipped with fedora core 4 */
895 #define ADD_NO_RANDOMIZE 0x0040000
896 personality (PER_LINUX32
| ADD_NO_RANDOMIZE
);
897 #undef ADD_NO_RANDOMIZE
899 execvp (argv
[0], argv
);
901 /* If the exec fails, try to dump anyway. */
905 #endif /* HAVE_PERSONALITY_LINUX32 */
908 /* Map in shared memory, if we are using that. */
910 if (argmatch (argv
, argc
, "-nl", "--no-shared-memory", 6, NULL
, &skip_args
))
913 /* The shared memory was just restored, which clobbered this. */
919 /* The shared memory was just restored, which clobbered this. */
926 extern int malloc_cookie
;
927 /* This helps out unexnext.c. */
929 if (malloc_jumpstart (malloc_cookie
) != 0)
930 printf ("malloc jumpstart failed!\n");
935 /* Skip process serial number passed in the form -psn_x_y as
936 command-line argument. The WindowServer adds this option when
937 Emacs is invoked from the Finder or by the `open' command. In
938 these cases, the working directory becomes `/', so we change it
939 to the user's home directory. */
940 if (argc
> skip_args
+ 1 && strncmp (argv
[skip_args
+1], "-psn_", 5) == 0)
942 chdir (getenv ("HOME"));
948 /* If -map specified, map the data file in. */
951 if (argmatch (argv
, argc
, "-map", "--map-data", 3, &file
, &skip_args
))
955 #ifdef LINK_CRTL_SHARE
956 #ifdef SHARABLE_LIB_BUG
957 /* Bletcherous shared libraries! */
959 stdin
= fdopen (0, "r");
961 stdout
= fdopen (1, "w");
963 stderr
= fdopen (2, "w");
966 #endif /* SHARABLE_LIB_BUG */
967 #endif /* LINK_CRTL_SHARE */
970 #if defined (HAVE_SETRLIMIT) && defined (RLIMIT_STACK)
971 /* Extend the stack space available.
972 Don't do that if dumping, since some systems (e.g. DJGPP)
973 might define a smaller stack limit at that time. */
976 && (!noninteractive
|| initialized
)
978 && !getrlimit (RLIMIT_STACK
, &rlim
))
981 extern size_t re_max_failures
;
982 /* Approximate the amount regex.c needs per unit of re_max_failures. */
983 int ratio
= 20 * sizeof (char *);
984 /* Then add 33% to cover the size of the smaller stacks that regex.c
985 successively allocates and discards, on its way to the maximum. */
987 /* Add in some extra to cover
988 what we're likely to use for other reasons. */
989 newlim
= re_max_failures
* ratio
+ 200000;
991 /* NetBSD (at least NetBSD 1.2G and former) has a bug in its
992 stack allocation routine for new process that the allocation
993 fails if stack limit is not on page boundary. So, round up the
994 new limit to page boundary. */
995 newlim
= (newlim
+ getpagesize () - 1) / getpagesize () * getpagesize();
997 if (newlim
> rlim
.rlim_max
)
999 newlim
= rlim
.rlim_max
;
1000 /* Don't let regex.c overflow the stack we have. */
1001 re_max_failures
= (newlim
- 200000) / ratio
;
1003 if (rlim
.rlim_cur
< newlim
)
1004 rlim
.rlim_cur
= newlim
;
1006 setrlimit (RLIMIT_STACK
, &rlim
);
1008 #endif /* HAVE_SETRLIMIT and RLIMIT_STACK */
1010 /* Record (approximately) where the stack begins. */
1011 stack_bottom
= &stack_bottom_variable
;
1013 #ifdef USG_SHARED_LIBRARIES
1015 brk ((void *)bss_end
);
1020 #ifndef SYSTEM_MALLOC
1021 /* Arrange to get warning messages as memory fills up. */
1022 memory_warnings (0, malloc_warning
);
1024 /* Call malloc at least once, to run the initial __malloc_hook.
1025 Also call realloc and free for consistency. */
1026 free (realloc (malloc (4), 4));
1029 /* Arrange to disable interrupt input inside malloc etc. */
1030 uninterrupt_malloc ();
1031 # endif /* not SYNC_INPUT */
1032 #endif /* not SYSTEM_MALLOC */
1034 #ifdef HAVE_GTK_AND_PTHREAD
1035 main_thread
= pthread_self ();
1036 #endif /* HAVE_GTK_AND_PTHREAD */
1038 #if defined (MSDOS) || defined (WINDOWSNT)
1039 /* We do all file input/output as binary files. When we need to translate
1040 newlines, we do that manually. */
1042 #endif /* MSDOS || WINDOWSNT */
1046 if (!isatty (fileno (stdin
)))
1047 setmode (fileno (stdin
), O_BINARY
);
1048 if (!isatty (fileno (stdout
)))
1051 setmode (fileno (stdout
), O_BINARY
);
1053 #else /* not __DJGPP__ >= 2 */
1054 (stdin
)->_flag
&= ~_IOTEXT
;
1055 (stdout
)->_flag
&= ~_IOTEXT
;
1056 (stderr
)->_flag
&= ~_IOTEXT
;
1057 #endif /* not __DJGPP__ >= 2 */
1060 #ifdef SET_EMACS_PRIORITY
1062 nice (emacs_priority
);
1064 #endif /* SET_EMACS_PRIORITY */
1066 /* Skip initial setlocale if LC_ALL is "C", as it's not needed in that case.
1067 The build procedure uses this while dumping, to ensure that the
1068 dumped Emacs does not have its system locale tables initialized,
1069 as that might cause screwups when the dumped Emacs starts up. */
1071 char *lc_all
= getenv ("LC_ALL");
1072 do_initial_setlocale
= ! lc_all
|| strcmp (lc_all
, "C");
1075 /* Set locale now, so that initial error messages are localized properly.
1076 fixup_locale must wait until later, since it builds strings. */
1077 if (do_initial_setlocale
)
1078 setlocale (LC_ALL
, "");
1080 #ifdef EXTRA_INITIALIZE
1084 inhibit_window_system
= 0;
1086 /* Handle the -t switch, which specifies filename to use as terminal. */
1090 if (argmatch (argv
, argc
, "-t", "--terminal", 4, &term
, &skip_args
))
1095 result
= emacs_open (term
, O_RDWR
, 0);
1098 char *errstring
= strerror (errno
);
1099 fprintf (stderr
, "%s: %s: %s\n", argv
[0], term
, errstring
);
1105 fprintf (stderr
, "%s: %s: not a tty\n", argv
[0], term
);
1108 fprintf (stderr
, "Using %s\n", term
);
1109 #ifdef HAVE_WINDOW_SYSTEM
1110 inhibit_window_system
= 1; /* -t => -nw */
1117 /* Command line option --no-windows is deprecated and thus not mentioned
1118 in the manual and usage informations. */
1119 if (argmatch (argv
, argc
, "-nw", "--no-window-system", 6, NULL
, &skip_args
)
1120 || argmatch (argv
, argc
, "-nw", "--no-windows", 6, NULL
, &skip_args
))
1121 inhibit_window_system
= 1;
1123 /* Handle the -batch switch, which means don't do interactive display. */
1125 if (argmatch (argv
, argc
, "-batch", "--batch", 5, NULL
, &skip_args
))
1128 Vundo_outer_limit
= Qnil
;
1130 if (argmatch (argv
, argc
, "-script", "--script", 3, &junk
, &skip_args
))
1132 noninteractive
= 1; /* Set batch mode. */
1133 /* Convert --script to --scriptload, un-skip it, and sort again
1134 so that it will be handled in proper sequence. */
1135 argv
[skip_args
- 1] = "-scriptload";
1137 sort_args (argc
, argv
);
1140 /* Handle the --help option, which gives a usage message. */
1141 if (argmatch (argv
, argc
, "-help", "--help", 3, NULL
, &skip_args
))
1143 printf (USAGE1
, argv
[0], USAGE2
);
1145 printf (USAGE4
, bug_reporting_address ());
1149 if (! noninteractive
)
1154 inherited_pgroup
= EMACS_GETPGRP (0);
1155 setpgrp (0, getpid ());
1158 #if defined (USG5) && defined (INTERRUPT_INPUT)
1166 /* Don't catch SIGHUP if dumping. */
1173 sigblock (sigmask (SIGHUP
));
1174 /* In --batch mode, don't catch SIGHUP if already ignored.
1175 That makes nohup work. */
1176 if (! noninteractive
1177 || signal (SIGHUP
, SIG_IGN
) != SIG_IGN
)
1178 signal (SIGHUP
, fatal_error_signal
);
1179 sigunblock (sigmask (SIGHUP
));
1184 ! noninteractive
|| initialized
1190 /* Don't catch these signals in batch mode if dumping.
1191 On some machines, this sets static data that would make
1192 signal fail to work right when the dumped Emacs is run. */
1193 signal (SIGQUIT
, fatal_error_signal
);
1194 signal (SIGILL
, fatal_error_signal
);
1195 signal (SIGTRAP
, fatal_error_signal
);
1197 add_user_signal (SIGUSR1
, "sigusr1");
1200 add_user_signal (SIGUSR2
, "sigusr2");
1203 signal (SIGABRT
, fatal_error_signal
);
1206 signal (SIGHWE
, fatal_error_signal
);
1209 signal (SIGPRE
, fatal_error_signal
);
1212 signal (SIGORE
, fatal_error_signal
);
1215 signal (SIGUME
, fatal_error_signal
);
1218 signal (SIGDLK
, fatal_error_signal
);
1221 signal (SIGCPULIM
, fatal_error_signal
);
1224 /* This is missing on some systems - OS/2, for example. */
1225 signal (SIGIOT
, fatal_error_signal
);
1228 signal (SIGEMT
, fatal_error_signal
);
1230 signal (SIGFPE
, fatal_error_signal
);
1232 signal (SIGBUS
, fatal_error_signal
);
1234 signal (SIGSEGV
, fatal_error_signal
);
1236 signal (SIGSYS
, fatal_error_signal
);
1238 signal (SIGTERM
, fatal_error_signal
);
1240 signal (SIGXCPU
, fatal_error_signal
);
1243 signal (SIGXFSZ
, fatal_error_signal
);
1244 #endif /* SIGXFSZ */
1247 /* This just means available memory is getting low. */
1248 signal (SIGDANGER
, memory_warning_signal
);
1252 /* 20 is SIGCHLD, 21 is SIGTTIN, 22 is SIGTTOU. */
1253 signal (SIGXCPU
, fatal_error_signal
);
1255 signal (SIGIOINT
, fatal_error_signal
);
1257 signal (SIGGRANT
, fatal_error_signal
);
1258 signal (SIGRETRACT
, fatal_error_signal
);
1259 signal (SIGSOUND
, fatal_error_signal
);
1260 signal (SIGMSG
, fatal_error_signal
);
1264 noninteractive1
= noninteractive
;
1266 /* Perform basic initializations (not merely interning symbols). */
1273 init_charset_once ();
1274 init_coding_once ();
1275 init_syntax_once (); /* Create standard syntax table. */
1276 init_category_once (); /* Create standard category table. */
1277 /* Must be done before init_buffer. */
1278 init_casetab_once ();
1279 init_buffer_once (); /* Create buffer table and some buffers. */
1280 init_minibuf_once (); /* Create list of minibuffers. */
1281 /* Must precede init_window_once. */
1283 /* Call syms_of_xfaces before init_window_once because that
1284 function creates Vterminal_frame. Termcap frames now use
1285 faces, and the face implementation uses some symbols as
1288 /* XXX syms_of_keyboard uses some symbols in keymap.c. It would
1289 be better to arrange things not to have this dependency. */
1291 /* Call syms_of_keyboard before init_window_once because
1292 keyboard sets up symbols that include some face names that
1293 the X support will want to use. This can happen when
1294 CANNOT_DUMP is defined. */
1295 syms_of_keyboard ();
1298 /* init_window_once calls make_terminal_frame which on Mac OS
1299 creates a full-fledge output_mac type frame. This does not
1300 work correctly before syms_of_textprop, syms_of_macfns,
1301 syms_of_ccl, syms_of_fontset, syms_of_xterm, syms_of_search,
1302 syms_of_frame, mac_term_init, and init_keyboard have already
1304 syms_of_textprop ();
1310 syms_of_macselect ();
1316 mac_term_init (build_string ("Mac"), NULL
, NULL
);
1320 init_window_once (); /* Init the window system. */
1321 init_fileio_once (); /* Must precede any path manipulation. */
1322 #ifdef HAVE_WINDOW_SYSTEM
1323 init_fringe_once (); /* Swap bitmaps if necessary. */
1324 #endif /* HAVE_WINDOW_SYSTEM */
1329 if (do_initial_setlocale
)
1332 Vsystem_messages_locale
= Vprevious_system_messages_locale
;
1333 Vsystem_time_locale
= Vprevious_system_time_locale
;
1338 #ifdef CLASH_DETECTION
1344 running_asynch_code
= 0;
1346 /* Handle --unibyte and the EMACS_UNIBYTE envvar,
1347 but not while dumping. */
1350 int inhibit_unibyte
= 0;
1352 /* --multibyte overrides EMACS_UNIBYTE. */
1353 if (argmatch (argv
, argc
, "-no-unibyte", "--no-unibyte", 4, NULL
, &skip_args
)
1354 || argmatch (argv
, argc
, "-multibyte", "--multibyte", 4, NULL
, &skip_args
)
1355 /* Ignore EMACS_UNIBYTE before dumping. */
1356 || (!initialized
&& noninteractive
))
1357 inhibit_unibyte
= 1;
1359 /* --unibyte requests that we set up to do everything with single-byte
1360 buffers and strings. We need to handle this before calling
1361 init_lread, init_editfns and other places that generate Lisp strings
1362 from text in the environment. */
1363 /* Actually this shouldn't be needed as of 20.4 in a generally
1364 unibyte environment. As handa says, environment values
1365 aren't now decoded; also existing buffers are now made
1366 unibyte during startup if .emacs sets unibyte. Tested with
1367 8-bit data in environment variables and /etc/passwd, setting
1368 unibyte and Latin-1 in .emacs. -- Dave Love */
1369 if (argmatch (argv
, argc
, "-unibyte", "--unibyte", 4, NULL
, &skip_args
)
1370 || argmatch (argv
, argc
, "-no-multibyte", "--no-multibyte", 4, NULL
, &skip_args
)
1371 || (getenv ("EMACS_UNIBYTE") && !inhibit_unibyte
))
1373 Lisp_Object old_log_max
;
1374 Lisp_Object symbol
, tail
;
1376 symbol
= intern ("default-enable-multibyte-characters");
1377 Fset (symbol
, Qnil
);
1381 /* Erase pre-dump messages in *Messages* now so no abort. */
1382 old_log_max
= Vmessage_log_max
;
1383 XSETFASTINT (Vmessage_log_max
, 0);
1384 message_dolog ("", 0, 1, 0);
1385 Vmessage_log_max
= old_log_max
;
1388 for (tail
= Vbuffer_alist
; CONSP (tail
);
1393 buffer
= Fcdr (XCAR (tail
));
1394 /* Verify that all buffers are empty now, as they
1396 if (BUF_Z (XBUFFER (buffer
)) > BUF_BEG (XBUFFER (buffer
)))
1398 /* It is safe to do this crudely in an empty buffer. */
1399 XBUFFER (buffer
)->enable_multibyte_characters
= Qnil
;
1405 = argmatch (argv
, argc
, "-nl", "--no-loadup", 6, NULL
, &skip_args
);
1408 #ifdef HAVE_X_WINDOWS
1409 /* Stupid kludge to catch command-line display spec. We can't
1410 handle this argument entirely in window system dependent code
1411 because we don't even know which window system dependent code
1412 to run until we've recognized this argument. */
1414 char *displayname
= 0;
1415 int count_before
= skip_args
;
1417 /* Skip any number of -d options, but only use the last one. */
1420 int count_before_this
= skip_args
;
1422 if (argmatch (argv
, argc
, "-d", "--display", 3, &displayname
, &skip_args
))
1424 else if (argmatch (argv
, argc
, "-display", 0, 3, &displayname
, &skip_args
))
1429 count_before
= count_before_this
;
1432 /* If we have the form --display=NAME,
1433 convert it into -d name.
1434 This requires inserting a new element into argv. */
1435 if (displayname
!= 0 && skip_args
- count_before
== 1)
1437 char **new = (char **) xmalloc (sizeof (char *) * (argc
+ 2));
1440 for (j
= 0; j
< count_before
+ 1; j
++)
1442 new[count_before
+ 1] = "-d";
1443 new[count_before
+ 2] = displayname
;
1444 for (j
= count_before
+ 2; j
<argc
; j
++)
1445 new[j
+ 1] = argv
[j
];
1449 /* Change --display to -d, when its arg is separate. */
1450 else if (displayname
!= 0 && skip_args
> count_before
1451 && argv
[count_before
+ 1][1] == '-')
1452 argv
[count_before
+ 1] = "-d";
1454 /* Don't actually discard this arg. */
1455 skip_args
= count_before
;
1459 /* argmatch must not be used after here,
1460 except when bulding temacs
1461 because the -d argument has not been skipped in skip_args. */
1464 /* Call early 'cause init_environment needs it. */
1466 /* Set defaults for several environment variables. */
1468 init_environment (argc
, argv
, skip_args
);
1475 /* Initialize environment from registry settings. */
1476 init_environment (argv
);
1477 init_ntproc (); /* must precede init_editfns. */
1480 #if defined (MAC_OSX) && defined (HAVE_CARBON)
1482 init_mac_osx_environment ();
1485 /* egetenv is a pretty low-level facility, which may get called in
1486 many circumstances; it seems flimsy to put off initializing it
1487 until calling init_callproc. */
1488 set_initial_environment ();
1489 /* AIX crashes are reported in system versions 3.2.3 and 3.2.4
1490 if this is not done. Do it after set_global_environment so that we
1491 don't pollute Vglobal_environment. */
1492 /* Setting LANG here will defeat the startup locale processing... */
1497 init_buffer (); /* Init default directory of main buffer. */
1499 init_callproc_1 (); /* Must precede init_cmdargs and init_sys_modes. */
1500 init_cmdargs (argc
, argv
, skip_args
); /* Must precede init_lread. */
1504 /* Erase any pre-dump messages in the message log, to avoid confusion. */
1505 Lisp_Object old_log_max
;
1506 old_log_max
= Vmessage_log_max
;
1507 XSETFASTINT (Vmessage_log_max
, 0);
1508 message_dolog ("", 0, 1, 0);
1509 Vmessage_log_max
= old_log_max
;
1512 init_callproc (); /* Must follow init_cmdargs but not init_sys_modes. */
1515 /* Intern the names of all standard functions and variables;
1516 define standard keys. */
1520 /* The basic levels of Lisp must come first. */
1521 /* And data must come first of all
1522 for the sake of symbols like error-message. */
1524 /* Called before init_window_once for Mac OS Classic. */
1532 syms_of_floatfns ();
1536 syms_of_bytecode ();
1538 syms_of_casefiddle ();
1540 syms_of_callproc ();
1541 syms_of_category ();
1543 /* Called before init_window_once for Mac OS Classic. */
1548 #ifndef NO_DIR_LIBRARY
1550 #endif /* not NO_DIR_LIBRARY */
1556 syms_of_coding (); /* This should be after syms_of_fileio. */
1557 #ifdef CLASH_DETECTION
1558 syms_of_filelock ();
1559 #endif /* CLASH_DETECTION */
1562 /* syms_of_keymap (); */
1568 /* Called before init_window_once for Mac OS Classic. */
1573 syms_of_terminal ();
1580 /* Called before init_window_once for Mac OS Classic. */
1581 syms_of_textprop ();
1583 syms_of_composite ();
1589 #endif /* WINDOWSNT */
1592 #ifdef HAVE_WINDOW_SYSTEM
1595 #endif /* HAVE_WINDOW_SYSTEM */
1596 #ifdef HAVE_X_WINDOWS
1606 #endif /* HAVE_X_WINDOWS */
1610 /* Called before init_window_once for Mac OS Classic. */
1618 syms_of_w32select ();
1621 #endif /* HAVE_NTGUI */
1623 #if defined (MAC_OSX) && defined (HAVE_CARBON)
1627 syms_of_macselect ();
1629 #endif /* MAC_OSX && HAVE_CARBON */
1639 keys_of_casefiddle ();
1642 keys_of_keyboard ();
1649 /* Initialization that must be done even if the global variable
1650 initialized is non zero. */
1652 globals_of_w32fns ();
1653 globals_of_w32menu ();
1654 globals_of_w32select ();
1655 #endif /* HAVE_NTGUI */
1658 init_process (); /* init_display uses add_keyboard_wait_descriptor. */
1660 /* Called before init_window_once for Mac OS Classic. */
1661 init_keyboard (); /* This too must precede init_sys_modes. */
1664 init_vmsproc (); /* And this too. */
1666 if (!noninteractive
)
1669 init_vms_input ();/* init_display calls get_tty_size, that needs this. */
1671 init_display (); /* Determine terminal type. Calls init_sys_modes. */
1675 #ifdef HAVE_WINDOW_SYSTEM
1678 #endif /* HAVE_WINDOW_SYSTEM */
1693 /* Handle -l loadup, args passed by Makefile. */
1694 if (argmatch (argv
, argc
, "-l", "--load", 3, &file
, &skip_args
))
1695 Vtop_level
= Fcons (intern ("load"),
1696 Fcons (build_string (file
), Qnil
));
1697 /* Unless next switch is -nl, load "loadup.el" first thing. */
1699 Vtop_level
= Fcons (intern ("load"),
1700 Fcons (build_string ("loadup.el"), Qnil
));
1707 /* If the execution TZ happens to be the same as the dump TZ,
1708 change it to some other value and then change it back,
1709 to force the underlying implementation to reload the TZ info.
1710 This is needed on implementations that load TZ info from files,
1711 since the TZ file contents may differ between dump and execution. */
1712 char *tz
= getenv ("TZ");
1713 if (tz
&& !strcmp (tz
, dump_tz
))
1723 /* Set up for profiling. This is known to work on FreeBSD,
1724 GNU/Linux and MinGW. It might work on some other systems too.
1725 Give it a try and tell us if it works on your system. To compile
1726 for profiling use something like:
1727 `make CFLAGS="-pg -g -O -DPROFILING=1'. */
1728 #if defined (__FreeBSD__) || defined (GNU_LINUX) || defined(__MINGW32__)
1732 extern void _mcleanup ();
1734 extern unsigned char etext
asm ("etext");
1738 extern void safe_bcopy ();
1739 extern void dump_opcode_frequencies ();
1742 /* This uses safe_bcopy because that function comes first in the
1743 Emacs executable. It might be better to use something that
1744 gives the start of the text segment, but start_of_text is not
1745 defined on all systems now. */
1746 monstartup (safe_bcopy
, &etext
);
1755 #ifdef LOCALTIME_CACHE
1756 /* Some versions of localtime have a bug. They cache the value of the time
1757 zone rather than looking it up every time. Since localtime() is
1758 called to bolt the undumping time into the undumped emacs, this
1759 results in localtime ignoring the TZ environment variable.
1760 This flushes the new TZ value into localtime. */
1762 #endif /* defined (LOCALTIME_CACHE) */
1764 /* Enter editor command loop. This never returns. */
1770 /* Sort the args so we can find the most important ones
1771 at the beginning of argv. */
1773 /* First, here's a table of all the standard options. */
1775 struct standard_args
1783 struct standard_args standard_args
[] =
1785 { "-version", "--version", 150, 0 },
1787 { "-nl", "--no-shared-memory", 140, 0 },
1790 { "-map", "--map-data", 130, 0 },
1792 { "-t", "--terminal", 120, 1 },
1793 { "-nw", "--no-window-system", 110, 0 },
1794 { "-nw", "--no-windows", 110, 0 },
1795 { "-batch", "--batch", 100, 0 },
1796 { "-script", "--script", 100, 1 },
1797 { "-help", "--help", 90, 0 },
1798 { "-no-unibyte", "--no-unibyte", 83, 0 },
1799 { "-multibyte", "--multibyte", 82, 0 },
1800 { "-unibyte", "--unibyte", 81, 0 },
1801 { "-no-multibyte", "--no-multibyte", 80, 0 },
1802 { "-nl", "--no-loadup", 70, 0 },
1803 /* -d must come last before the options handled in startup.el. */
1804 { "-d", "--display", 60, 1 },
1805 { "-display", 0, 60, 1 },
1806 /* Now for the options handled in startup.el. */
1807 { "-Q", "--quick", 55, 0 },
1808 { "-quick", 0, 55, 0 },
1809 { "-q", "--no-init-file", 50, 0 },
1810 { "-no-init-file", 0, 50, 0 },
1811 { "-no-site-file", "--no-site-file", 40, 0 },
1812 { "-no-splash", "--no-splash", 40, 0 },
1813 { "-u", "--user", 30, 1 },
1814 { "-user", 0, 30, 1 },
1815 { "-debug-init", "--debug-init", 20, 0 },
1816 { "-nbi", "--no-bitmap-icon", 15, 0 },
1817 { "-iconic", "--iconic", 15, 0 },
1818 { "-D", "--basic-display", 12, 0},
1819 { "-basic-display", 0, 12, 0},
1820 { "-bg", "--background-color", 10, 1 },
1821 { "-background", 0, 10, 1 },
1822 { "-fg", "--foreground-color", 10, 1 },
1823 { "-foreground", 0, 10, 1 },
1824 { "-bd", "--border-color", 10, 1 },
1825 { "-bw", "--border-width", 10, 1 },
1826 { "-ib", "--internal-border", 10, 1 },
1827 { "-ms", "--mouse-color", 10, 1 },
1828 { "-cr", "--cursor-color", 10, 1 },
1829 { "-nbc", "--no-blinking-cursor", 10, 0 },
1830 { "-fn", "--font", 10, 1 },
1831 { "-font", 0, 10, 1 },
1832 { "-fs", "--fullscreen", 10, 0 },
1833 { "-fw", "--fullwidth", 10, 0 },
1834 { "-fh", "--fullheight", 10, 0 },
1835 { "-g", "--geometry", 10, 1 },
1836 { "-geometry", 0, 10, 1 },
1837 { "-T", "--title", 10, 1 },
1838 { "-title", 0, 10, 1 },
1839 { "-name", "--name", 10, 1 },
1840 { "-xrm", "--xrm", 10, 1 },
1841 { "-r", "--reverse-video", 5, 0 },
1843 { "-reverse", 0, 5, 0 },
1844 { "-hb", "--horizontal-scroll-bars", 5, 0 },
1845 { "-vb", "--vertical-scroll-bars", 5, 0 },
1846 { "-color", "--color", 5, 0},
1847 /* These have the same priority as ordinary file name args,
1848 so they are not reordered with respect to those. */
1849 { "-L", "--directory", 0, 1 },
1850 { "-directory", 0, 0, 1 },
1851 { "-l", "--load", 0, 1 },
1852 { "-load", 0, 0, 1 },
1853 { "-scriptload", "--scriptload", 0, 1 },
1854 { "-f", "--funcall", 0, 1 },
1855 { "-funcall", 0, 0, 1 },
1856 { "-eval", "--eval", 0, 1 },
1857 { "-execute", "--execute", 0, 1 },
1858 { "-find-file", "--find-file", 0, 1 },
1859 { "-visit", "--visit", 0, 1 },
1860 { "-file", "--file", 0, 1 },
1861 { "-insert", "--insert", 0, 1 },
1862 /* This should be processed after ordinary file name args and the like. */
1863 { "-kill", "--kill", -10, 0 },
1866 /* Reorder the elements of ARGV (assumed to have ARGC elements)
1867 so that the highest priority ones come first.
1868 Do not change the order of elements of equal priority.
1869 If an option takes an argument, keep it and its argument together.
1871 If an option that takes no argument appears more
1872 than once, eliminate all but one copy of it. */
1875 sort_args (argc
, argv
)
1879 char **new = (char **) xmalloc (sizeof (char *) * argc
);
1880 /* For each element of argv,
1881 the corresponding element of options is:
1882 0 for an option that takes no arguments,
1883 1 for an option that takes one argument, etc.
1884 -1 for an ordinary non-option argument. */
1885 int *options
= (int *) xmalloc (sizeof (int) * argc
);
1886 int *priority
= (int *) xmalloc (sizeof (int) * argc
);
1888 int incoming_used
= 1;
1892 /* Categorize all the options,
1893 and figure out which argv elts are option arguments. */
1894 for (from
= 1; from
< argc
; from
++)
1898 if (argv
[from
][0] == '-')
1903 /* If we have found "--", don't consider
1904 any more arguments as options. */
1905 if (argv
[from
][1] == '-' && argv
[from
][2] == 0)
1907 /* Leave the "--", and everything following it, at the end. */
1908 for (; from
< argc
; from
++)
1910 priority
[from
] = -100;
1916 /* Look for a match with a known old-fashioned option. */
1917 for (i
= 0; i
< sizeof (standard_args
) / sizeof (standard_args
[0]); i
++)
1918 if (!strcmp (argv
[from
], standard_args
[i
].name
))
1920 options
[from
] = standard_args
[i
].nargs
;
1921 priority
[from
] = standard_args
[i
].priority
;
1922 if (from
+ standard_args
[i
].nargs
>= argc
)
1923 fatal ("Option `%s' requires an argument\n", argv
[from
]);
1924 from
+= standard_args
[i
].nargs
;
1928 /* Look for a match with a known long option.
1929 MATCH is -1 if no match so far, -2 if two or more matches so far,
1930 >= 0 (the table index of the match) if just one match so far. */
1931 if (argv
[from
][1] == '-')
1934 thislen
= strlen (argv
[from
]);
1935 equals
= index (argv
[from
], '=');
1937 thislen
= equals
- argv
[from
];
1940 i
< sizeof (standard_args
) / sizeof (standard_args
[0]); i
++)
1941 if (standard_args
[i
].longname
1942 && !strncmp (argv
[from
], standard_args
[i
].longname
,
1951 /* If we found exactly one match, use that. */
1954 options
[from
] = standard_args
[match
].nargs
;
1955 priority
[from
] = standard_args
[match
].priority
;
1956 /* If --OPTION=VALUE syntax is used,
1957 this option uses just one argv element. */
1960 if (from
+ options
[from
] >= argc
)
1961 fatal ("Option `%s' requires an argument\n", argv
[from
]);
1962 from
+= options
[from
];
1969 /* Copy the arguments, in order of decreasing priority, to NEW. */
1971 while (incoming_used
< argc
)
1974 int best_priority
= -9999;
1976 /* Find the highest priority remaining option.
1977 If several have equal priority, take the first of them. */
1978 for (from
= 1; from
< argc
; from
++)
1980 if (argv
[from
] != 0 && priority
[from
] > best_priority
)
1982 best_priority
= priority
[from
];
1985 /* Skip option arguments--they are tied to the options. */
1986 if (options
[from
] > 0)
1987 from
+= options
[from
];
1993 /* Copy the highest priority remaining option, with its args, to NEW.
1994 Unless it is a duplicate of the previous one. */
1995 if (! (options
[best
] == 0
1996 && ! strcmp (new[to
- 1], argv
[best
])))
1998 new[to
++] = argv
[best
];
1999 for (i
= 0; i
< options
[best
]; i
++)
2000 new[to
++] = argv
[best
+ i
+ 1];
2003 incoming_used
+= 1 + (options
[best
] > 0 ? options
[best
] : 0);
2005 /* Clear out this option in ARGV. */
2007 for (i
= 0; i
< options
[best
]; i
++)
2008 argv
[best
+ i
+ 1] = 0;
2011 /* If duplicate options were deleted, fill up extra space with null ptrs. */
2015 bcopy (new, argv
, sizeof (char *) * argc
);
2022 DEFUN ("kill-emacs", Fkill_emacs
, Skill_emacs
, 0, 1, "P",
2023 doc
: /* Exit the Emacs job and kill it.
2024 If ARG is an integer, return ARG as the exit program code.
2025 If ARG is a string, stuff it as keyboard input.
2027 The value of `kill-emacs-hook', if not void,
2028 is a list of functions (of no args),
2029 all of which are called before Emacs is actually killed. */)
2033 struct gcpro gcpro1
;
2040 if (!NILP (Vrun_hooks
) && !noninteractive
)
2041 call1 (Vrun_hooks
, intern ("kill-emacs-hook"));
2045 /* Is it really necessary to do this deassign
2046 when we are going to exit anyway? */
2051 shut_down_emacs (0, 0, STRINGP (arg
) ? arg
: Qnil
);
2053 /* If we have an auto-save list file,
2054 kill it because we are exiting Emacs deliberately (not crashing).
2055 Do it after shut_down_emacs, which does an auto-save. */
2056 if (STRINGP (Vauto_save_list_file_name
))
2057 unlink (SDATA (Vauto_save_list_file_name
));
2059 exit (INTEGERP (arg
) ? XINT (arg
) : EXIT_SUCCESS
);
2065 /* Perform an orderly shutdown of Emacs. Autosave any modified
2066 buffers, kill any child processes, clean up the terminal modes (if
2067 we're in the foreground), and other stuff like that. Don't perform
2068 any redisplay; this may be called when Emacs is shutting down in
2069 the background, or after its X connection has died.
2071 If SIG is a signal number, print a message for it.
2073 This is called by fatal signal handlers, X protocol error handlers,
2077 shut_down_emacs (sig
, no_x
, stuff
)
2081 /* Prevent running of hooks from now on. */
2084 /* Don't update display from now on. */
2085 Vinhibit_redisplay
= Qt
;
2087 /* If we are controlling the terminal, reset terminal modes. */
2088 #ifdef EMACS_HAVE_TTY_PGRP
2090 int pgrp
= EMACS_GETPGRP (0);
2093 if (EMACS_GET_TTY_PGRP (0, &tpgrp
) != -1
2096 reset_all_sys_modes ();
2097 if (sig
&& sig
!= SIGTERM
)
2098 fprintf (stderr
, "Fatal error (%d)", sig
);
2103 reset_all_sys_modes ();
2106 stuff_buffered_input (stuff
);
2109 inhibit_sentinels
= 1;
2111 kill_buffer_processes (Qnil
);
2112 Fdo_auto_save (Qt
, Qnil
);
2114 #ifdef CLASH_DETECTION
2115 unlock_all_files ();
2119 kill_vms_processes ();
2122 #if 0 /* This triggers a bug in XCloseDisplay and is not needed. */
2123 #ifdef HAVE_X_WINDOWS
2124 /* It's not safe to call intern here. Maybe we are crashing. */
2125 if (!noninteractive
&& SYMBOLP (Vinitial_window_system
)
2126 && SCHARS (SYMBOL_NAME (Vinitial_window_system
)) == 1
2127 && SREF (SYMBOL_NAME (Vinitial_window_system
), 0) == 'x'
2129 Fx_close_current_connection ();
2130 #endif /* HAVE_X_WINDOWS */
2134 /* There is a tendency for a SIGIO signal to arrive within exit,
2135 and cause a SIGHUP because the input descriptor is already closed. */
2137 signal (SIGIO
, SIG_IGN
);
2144 /* Do this only if terminating normally, we want glyph matrices
2145 etc. in a core dump. */
2146 if (sig
== 0 || sig
== SIGTERM
)
2148 check_glyph_memory ();
2149 check_message_stack ();
2163 DEFUN ("dump-emacs-data", Fdump_emacs_data
, Sdump_emacs_data
, 1, 1, 0,
2164 doc
: /* Dump current state of Emacs into data file FILENAME.
2165 This function exists on systems that use HAVE_SHM. */)
2167 Lisp_Object filename
;
2169 extern char my_edata
[];
2173 CHECK_STRING (filename
);
2174 filename
= Fexpand_file_name (filename
, Qnil
);
2177 Vpurify_flag
= Qnil
;
2180 /* Tell malloc where start of impure now is. */
2181 /* Also arrange for warnings when nearly out of space. */
2182 #ifndef SYSTEM_MALLOC
2183 memory_warnings (my_edata
, malloc_warning
);
2185 map_out_data (SDATA (filename
));
2192 #else /* not HAVE_SHM */
2194 DEFUN ("dump-emacs", Fdump_emacs
, Sdump_emacs
, 2, 2, 0,
2195 doc
: /* Dump current state of Emacs into executable file FILENAME.
2196 Take symbols from SYMFILE (presumably the file you executed to run Emacs).
2197 This is used in the file `loadup.el' when building Emacs.
2199 You must run Emacs in batch mode in order to dump it. */)
2201 Lisp_Object filename
, symfile
;
2203 extern char my_edata
[];
2206 int count
= SPECPDL_INDEX ();
2210 if (! noninteractive
)
2211 error ("Dumping Emacs works only in batch mode");
2214 if (heap_bss_diff
> MAX_HEAP_BSS_DIFF
)
2216 fprintf (stderr
, "**************************************************\n");
2217 fprintf (stderr
, "Warning: Your system has a gap between BSS and the\n");
2218 fprintf (stderr
, "heap (%lu byte). This usually means that exec-shield\n",
2220 fprintf (stderr
, "or something similar is in effect. The dump may\n");
2221 fprintf (stderr
, "fail because of this. See the section about \n");
2222 fprintf (stderr
, "exec-shield in etc/PROBLEMS for more information.\n");
2223 fprintf (stderr
, "**************************************************\n");
2225 #endif /* GNU_LINUX */
2227 /* Bind `command-line-processed' to nil before dumping,
2228 so that the dumped Emacs will process its command line
2229 and set up to work with X windows if appropriate. */
2230 symbol
= intern ("command-line-processed");
2231 specbind (symbol
, Qnil
);
2233 CHECK_STRING (filename
);
2234 filename
= Fexpand_file_name (filename
, Qnil
);
2235 if (!NILP (symfile
))
2237 CHECK_STRING (symfile
);
2238 if (SCHARS (symfile
))
2239 symfile
= Fexpand_file_name (symfile
, Qnil
);
2243 Vpurify_flag
= Qnil
;
2246 set_time_zone_rule (dump_tz
);
2247 #ifndef LOCALTIME_CACHE
2248 /* Force a tz reload, since set_time_zone_rule doesn't. */
2255 mapout_data (SDATA (filename
));
2257 /* Tell malloc where start of impure now is. */
2258 /* Also arrange for warnings when nearly out of space. */
2259 #ifndef SYSTEM_MALLOC
2261 /* On Windows, this was done before dumping, and that once suffices.
2262 Meanwhile, my_edata is not valid on Windows. */
2263 memory_warnings (my_edata
, malloc_warning
);
2264 #endif /* not WINDOWSNT */
2266 #if !defined (SYSTEM_MALLOC) && defined (HAVE_GTK_AND_PTHREAD) && !defined SYNC_INPUT
2267 /* Pthread may call malloc before main, and then we will get an endless
2268 loop, because pthread_self (see alloc.c) calls malloc the first time
2269 it is called on some systems. */
2270 reset_malloc_hooks ();
2272 #ifdef DOUG_LEA_MALLOC
2273 malloc_state_ptr
= malloc_get_state ();
2276 #ifdef USE_MMAP_FOR_BUFFERS
2279 unexec (SDATA (filename
),
2280 !NILP (symfile
) ? SDATA (symfile
) : 0, my_edata
, 0, 0);
2281 #ifdef USE_MMAP_FOR_BUFFERS
2284 #ifdef DOUG_LEA_MALLOC
2285 free (malloc_state_ptr
);
2287 #endif /* not VMS */
2291 return unbind_to (count
, Qnil
);
2294 #endif /* not HAVE_SHM */
2296 #endif /* not CANNOT_DUMP */
2299 /* Recover from setlocale (LC_ALL, ""). */
2303 /* The Emacs Lisp reader needs LC_NUMERIC to be "C",
2304 so that numbers are read and printed properly for Emacs Lisp. */
2305 setlocale (LC_NUMERIC
, "C");
2308 /* Set system locale CATEGORY, with previous locale *PLOCALE, to
2311 synchronize_locale (category
, plocale
, desired_locale
)
2313 Lisp_Object
*plocale
;
2314 Lisp_Object desired_locale
;
2316 if (! EQ (*plocale
, desired_locale
))
2318 *plocale
= desired_locale
;
2319 setlocale (category
, (STRINGP (desired_locale
)
2320 ? (char *) SDATA (desired_locale
)
2325 /* Set system time locale to match Vsystem_time_locale, if possible. */
2327 synchronize_system_time_locale ()
2329 synchronize_locale (LC_TIME
, &Vprevious_system_time_locale
,
2330 Vsystem_time_locale
);
2333 /* Set system messages locale to match Vsystem_messages_locale, if
2336 synchronize_system_messages_locale ()
2339 synchronize_locale (LC_MESSAGES
, &Vprevious_system_messages_locale
,
2340 Vsystem_messages_locale
);
2343 #endif /* HAVE_SETLOCALE */
2350 decode_env_path (evarname
, defalt
)
2351 char *evarname
, *defalt
;
2353 register char *path
, *p
;
2354 Lisp_Object lpath
, element
, tem
;
2356 /* It's okay to use getenv here, because this function is only used
2357 to initialize variables when Emacs starts up, and isn't called
2360 path
= (char *) getenv (evarname
);
2366 /* Ensure values from the environment use the proper directory separator. */
2369 p
= alloca (strlen (path
) + 1);
2373 if ('/' == DIRECTORY_SEP
)
2374 dostounix_filename (path
);
2376 unixtodos_filename (path
);
2382 p
= index (path
, SEPCHAR
);
2383 if (!p
) p
= path
+ strlen (path
);
2384 element
= (p
- path
? make_string (path
, p
- path
)
2385 : build_string ("."));
2387 /* Add /: to the front of the name
2388 if it would otherwise be treated as magic. */
2389 tem
= Ffind_file_name_handler (element
, Qt
);
2391 /* However, if the handler says "I'm safe",
2392 don't bother adding /:. */
2396 prop
= Fget (tem
, intern ("safe-magic"));
2402 element
= concat2 (build_string ("/:"), element
);
2404 lpath
= Fcons (element
, lpath
);
2410 return Fnreverse (lpath
);
2416 Qfile_name_handler_alist
= intern ("file-name-handler-alist");
2417 staticpro (&Qfile_name_handler_alist
);
2421 defsubr (&Sdump_emacs_data
);
2423 defsubr (&Sdump_emacs
);
2427 defsubr (&Skill_emacs
);
2429 defsubr (&Sinvocation_name
);
2430 defsubr (&Sinvocation_directory
);
2432 DEFVAR_LISP ("command-line-args", &Vcommand_line_args
,
2433 doc
: /* Args passed by shell to Emacs, as a list of strings.
2434 Many arguments are deleted from the list as they are processed. */);
2436 DEFVAR_LISP ("system-type", &Vsystem_type
,
2437 doc
: /* Value is symbol indicating type of operating system you are using.
2439 `gnu/linux' compiled for a GNU/Linux system.
2440 `darwin' compiled for Darwin (GNU-Darwin, Mac OS X, ...).
2441 `macos' compiled for Mac OS 9.
2442 `ms-dos' compiled as an MS-DOS application.
2443 `windows-nt' compiled as a native W32 application.
2444 `cygwin' compiled using the Cygwin library.
2446 `axp-vms' compiled for a (Open)VMS system.
2447 Anything else indicates some sort of Unix system. */);
2448 Vsystem_type
= intern (SYSTEM_TYPE
);
2450 DEFVAR_LISP ("system-configuration", &Vsystem_configuration
,
2451 doc
: /* Value is string indicating configuration Emacs was built for.
2452 On MS-Windows, the value reflects the OS flavor and version on which
2453 Emacs is running. */);
2454 Vsystem_configuration
= build_string (EMACS_CONFIGURATION
);
2456 DEFVAR_LISP ("system-configuration-options", &Vsystem_configuration_options
,
2457 doc
: /* String containing the configuration options Emacs was built with. */);
2458 Vsystem_configuration_options
= build_string (EMACS_CONFIG_OPTIONS
);
2460 DEFVAR_BOOL ("noninteractive", &noninteractive1
,
2461 doc
: /* Non-nil means Emacs is running without interactive terminal. */);
2463 DEFVAR_LISP ("kill-emacs-hook", &Vkill_emacs_hook
,
2464 doc
: /* Hook to be run when kill-emacs is called.
2465 Since `kill-emacs' may be invoked when the terminal is disconnected (or
2466 in other similar situations), functions placed on this hook should not
2467 expect to be able to interact with the user. To ask for confirmation,
2468 see `kill-emacs-query-functions' instead.
2470 The hook is not run in batch mode, i.e., if `noninteractive' is non-nil. */);
2471 Vkill_emacs_hook
= Qnil
;
2473 empty_string
= build_string ("");
2474 staticpro (&empty_string
);
2476 DEFVAR_INT ("emacs-priority", &emacs_priority
,
2477 doc
: /* Priority for Emacs to run at.
2478 This value is effective only if set before Emacs is dumped,
2479 and only if the Emacs executable is installed with setuid to permit
2480 it to change priority. (Emacs sets its uid back to the real uid.)
2481 Currently, you need to define SET_EMACS_PRIORITY in `config.h'
2482 before you compile Emacs, to enable the code for this feature. */);
2485 DEFVAR_LISP ("path-separator", &Vpath_separator
,
2486 doc
: /* String containing the character that separates directories in
2487 search paths, such as PATH and other similar environment variables. */);
2490 Vpath_separator
= make_string (&c
, 1);
2493 DEFVAR_LISP ("invocation-name", &Vinvocation_name
,
2494 doc
: /* The program name that was used to run Emacs.
2495 Any directory names are omitted. */);
2497 DEFVAR_LISP ("invocation-directory", &Vinvocation_directory
,
2498 doc
: /* The directory in which the Emacs executable was found, to run it.
2499 The value is nil if that directory's name is not known. */);
2501 DEFVAR_LISP ("installation-directory", &Vinstallation_directory
,
2502 doc
: /* A directory within which to look for the `lib-src' and `etc' directories.
2503 This is non-nil when we can't find those directories in their standard
2504 installed locations, but we can find them
2505 near where the Emacs executable was found. */);
2506 Vinstallation_directory
= Qnil
;
2508 DEFVAR_LISP ("system-messages-locale", &Vsystem_messages_locale
,
2509 doc
: /* System locale for messages. */);
2510 Vsystem_messages_locale
= Qnil
;
2512 DEFVAR_LISP ("previous-system-messages-locale",
2513 &Vprevious_system_messages_locale
,
2514 doc
: /* Most recently used system locale for messages. */);
2515 Vprevious_system_messages_locale
= Qnil
;
2517 DEFVAR_LISP ("system-time-locale", &Vsystem_time_locale
,
2518 doc
: /* System locale for time. */);
2519 Vsystem_time_locale
= Qnil
;
2521 DEFVAR_LISP ("previous-system-time-locale", &Vprevious_system_time_locale
,
2522 doc
: /* Most recently used system locale for time. */);
2523 Vprevious_system_time_locale
= Qnil
;
2526 /* arch-tag: 7bfd356a-c720-4612-8ab6-aa4222931c2e
2527 (do not change this comment) */