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, 2009,
4 2010 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 #ifdef HAVE_SYS_IOCTL_H
36 #include <sys/ioctl.h>
41 #include <windows.h> /* just for w32.h */
43 #include "w32heap.h" /* for prototype of sbrk */
46 #ifdef NS_IMPL_GNUSTEP
47 /* At least under Debian, GSConfig is in a subdirectory. --Stef */
48 #include <GNUstepBase/GSConfig.h>
53 #include "intervals.h"
58 #include "blockinput.h"
59 #include "syssignal.h"
62 #include "termhooks.h"
72 #include <sys/resource.h>
75 #ifdef HAVE_PERSONALITY_LINUX32
76 #include <sys/personality.h>
86 #define setpgrp setpgid
90 const char emacs_copyright
[] = "Copyright (C) 2010 Free Software Foundation, Inc.";
91 const char emacs_version
[] = "24.0.50";
93 extern void malloc_warning (char *);
94 extern void set_time_zone_rule (char *);
96 extern char *index (const char *, int);
99 /* Make these values available in GDB, which doesn't see macros. */
106 #ifndef USE_LISP_UNION_TYPE
107 int gdb_use_union
= 0;
109 int gdb_use_union
= 1;
111 EMACS_INT gdb_valbits
= VALBITS
;
112 EMACS_INT gdb_gctypebits
= GCTYPEBITS
;
113 #if defined (DATA_SEG_BITS) && ! defined (USE_LSB_TAG)
114 EMACS_INT gdb_data_seg_bits
= DATA_SEG_BITS
;
116 EMACS_INT gdb_data_seg_bits
= 0;
118 EMACS_INT PVEC_FLAG
= PSEUDOVECTOR_FLAG
;
119 EMACS_INT gdb_array_mark_flag
= ARRAY_MARK_FLAG
;
120 /* GDB might say "No enum type named pvec_type" if we don't have at
121 least one symbol with that type, and then xbacktrace could fail. */
122 enum pvec_type gdb_pvec_type
= PVEC_TYPE_MASK
;
124 /* Command line args from shell, as list of strings. */
125 Lisp_Object Vcommand_line_args
;
127 /* The name under which Emacs was invoked, with any leading directory
129 Lisp_Object Vinvocation_name
;
131 /* The directory name from which Emacs was invoked. */
132 Lisp_Object Vinvocation_directory
;
134 /* The directory name in which to find subdirs such as lisp and etc.
135 nil means get them only from PATH_LOADSEARCH. */
136 Lisp_Object Vinstallation_directory
;
138 /* The values of `current-time' before and after Emacs initialization. */
139 Lisp_Object Vbefore_init_time
, Vafter_init_time
;
141 /* Hook run by `kill-emacs' before it does really anything. */
142 Lisp_Object Vkill_emacs_hook
;
144 /* Empty lisp strings. To avoid having to build any others. */
145 Lisp_Object empty_unibyte_string
, empty_multibyte_string
;
147 /* Search path separator. */
148 Lisp_Object Vpath_separator
;
150 /* Set nonzero after Emacs has started up the first time.
151 Prevents reinitialization of the Lisp world and keymaps
152 on subsequent starts. */
155 #ifdef DOUG_LEA_MALLOC
156 /* Preserves a pointer to the memory allocated that copies that
157 static data inside glibc's malloc. */
158 void *malloc_state_ptr
;
159 /* From glibc, a routine that returns a copy of the malloc internal state. */
160 extern void *malloc_get_state (void);
161 /* From glibc, a routine that overwrites the malloc internal state. */
162 extern int malloc_set_state (void*);
163 /* Non-zero if the MALLOC_CHECK_ environment variable was set while
164 dumping. Used to work around a bug in glibc's malloc. */
165 int malloc_using_checking
;
168 /* Variable whose value is symbol giving operating system type. */
169 Lisp_Object Vsystem_type
;
171 /* Variable whose value is string giving configuration built for. */
172 Lisp_Object Vsystem_configuration
;
174 /* Variable whose value is string giving configuration options,
175 for use when reporting bugs. */
176 Lisp_Object Vsystem_configuration_options
;
178 Lisp_Object Qfile_name_handler_alist
;
180 /* Current and previous system locales for messages and time. */
181 Lisp_Object Vsystem_messages_locale
;
182 Lisp_Object Vprevious_system_messages_locale
;
183 Lisp_Object Vsystem_time_locale
;
184 Lisp_Object Vprevious_system_time_locale
;
186 /* Copyright and version info. The version number may be updated by
188 Lisp_Object Vemacs_copyright
, Vemacs_version
;
190 /* If non-zero, emacs should not attempt to use a window-specific code,
191 but instead should use the virtual terminal under which it was started. */
192 int inhibit_window_system
;
194 /* If nonzero, set Emacs to run at this priority. This is also used
195 in child_setup and sys_suspend to make sure subshells run at normal
196 priority; those functions have their own extern declaration. */
197 EMACS_INT emacs_priority
;
199 /* If non-zero, a filter or a sentinel is running. Tested to save the match
200 data on the first attempt to change it inside asynchronous code. */
201 int running_asynch_code
;
203 #if defined(HAVE_X_WINDOWS) || defined(HAVE_NS)
204 /* If non-zero, -d was specified, meaning we're using some window system. */
208 /* An address near the bottom of the stack.
209 Tells GC how to save a copy of the stack. */
212 /* The address where the heap starts (from the first sbrk (0) call). */
213 static void *my_heap_start
;
215 /* The gap between BSS end and heap start as far as we can tell. */
216 static unsigned long heap_bss_diff
;
218 /* If the gap between BSS end and heap start is larger than this
219 output a warning in dump-emacs. */
220 #define MAX_HEAP_BSS_DIFF (1024*1024)
223 #ifdef HAVE_WINDOW_SYSTEM
224 extern Lisp_Object Vinitial_window_system
;
225 #endif /* HAVE_WINDOW_SYSTEM */
227 extern Lisp_Object Vauto_save_list_file_name
;
229 extern Lisp_Object Vinhibit_redisplay
;
231 /* Nonzero means running Emacs without interactive terminal. */
235 /* Value of Lisp variable `noninteractive'.
236 Normally same as C variable `noninteractive'
237 but nothing terrible happens if user sets this one. */
241 /* Nonzero means Emacs was run in --quick mode. */
242 int inhibit_x_resources
;
244 /* Name for the server started by the daemon.*/
245 static char *daemon_name
;
247 /* Pipe used to send exit notification to the daemon parent at
251 /* Save argv and argc. */
255 static void sort_args (int argc
, char **argv
);
256 void syms_of_emacs (void);
258 /* MSVC needs each string be shorter than 2048 bytes, so the usage
259 strings below are split to not overflow this limit. */
261 Usage: %s [OPTION-OR-FILENAME]...\n\
263 Run Emacs, the extensible, customizable, self-documenting real-time\n\
264 display editor. The recommended way to start Emacs for normal editing\n\
265 is with no options at all.\n\
267 Run M-x info RET m emacs RET m emacs invocation RET inside Emacs to\n\
268 read the main documentation for these command-line arguments.\n\
270 Initialization options:\n\
272 --batch do not do interactive display; implies -q\n\
273 --chdir DIR change to directory DIR\n\
274 --daemon start a server in the background\n\
275 --debug-init enable Emacs Lisp debugger for init file\n\
276 --display, -d DISPLAY use X server DISPLAY\n\
277 --no-desktop do not load a saved desktop\n\
278 --no-init-file, -q load neither ~/.emacs nor default.el\n\
279 --no-shared-memory, -nl do not use shared memory\n\
280 --no-site-file do not load site-start.el\n\
281 --no-splash do not display a splash screen on startup\n\
282 --no-window-system, -nw do not communicate with X, ignoring $DISPLAY\n\
283 --quick, -Q equivalent to -q --no-site-file --no-splash\n\
284 --script FILE run FILE as an Emacs Lisp script\n\
285 --terminal, -t DEVICE use DEVICE for terminal I/O\n\
286 --user, -u USER load ~USER/.emacs instead of your own\n\
292 FILE visit FILE using find-file\n\
293 +LINE go to line LINE in next FILE\n\
294 +LINE:COLUMN go to line LINE, column COLUMN, in next FILE\n\
295 --directory, -L DIR add DIR to variable load-path\n\
296 --eval EXPR evaluate Emacs Lisp expression EXPR\n\
297 --execute EXPR evaluate Emacs Lisp expression EXPR\n\
298 --file FILE visit FILE using find-file\n\
299 --find-file FILE visit FILE using find-file\n\
300 --funcall, -f FUNC call Emacs Lisp function FUNC with no arguments\n\
301 --insert FILE insert contents of FILE into current buffer\n\
302 --kill exit without asking for confirmation\n\
303 --load, -l FILE load Emacs Lisp FILE using the load function\n\
304 --visit FILE visit FILE using find-file\n\
310 --background-color, -bg COLOR window background color\n\
311 --basic-display, -D disable many display features;\n\
312 used for debugging Emacs\n\
313 --border-color, -bd COLOR main border color\n\
314 --border-width, -bw WIDTH width of main border\n\
315 --color, --color=MODE override color mode for character terminals;\n\
316 MODE defaults to `auto', and can also\n\
317 be `never', `auto', `always',\n\
318 or a mode name like `ansi8'\n\
319 --cursor-color, -cr COLOR color of the Emacs cursor indicating point\n\
320 --font, -fn FONT default font; must be fixed-width\n\
321 --foreground-color, -fg COLOR window foreground color\n\
322 --fullheight, -fh make the first frame high as the screen\n\
323 --fullscreen, -fs make first frame fullscreen\n\
324 --fullwidth, -fw make the first frame wide as the screen\n\
325 --maximized, -mm make the first frame maximized\n\
326 --geometry, -g GEOMETRY window geometry\n\
327 --no-bitmap-icon, -nbi do not use picture of gnu for Emacs icon\n\
328 --iconic start Emacs in iconified state\n\
329 --internal-border, -ib WIDTH width between text and main border\n\
330 --line-spacing, -lsp PIXELS additional space to put between lines\n\
331 --mouse-color, -ms COLOR mouse cursor color in Emacs window\n\
332 --name NAME title for initial Emacs frame\n\
333 --no-blinking-cursor, -nbc disable blinking cursor\n\
334 --reverse-video, -r, -rv switch foreground and background\n\
335 --title, -T TITLE title for initial Emacs frame\n\
336 --vertical-scroll-bars, -vb enable vertical scroll bars\n\
337 --xrm XRESOURCES set additional X resources\n\
338 --parent-id XID set parent window\n\
339 --help display this help and exit\n\
340 --version output version information and exit\n\
344 You can generally also specify long option names with a single -; for\n\
345 example, -batch as well as --batch. You can use any unambiguous\n\
346 abbreviation for a --option.\n\
348 Various environment variables and window system resources also affect\n\
349 Emacs' operation. See the main documentation.\n\
351 Report bugs to bug-gnu-emacs@gnu.org. First, please see the Bugs\n\
352 section of the Emacs manual or the file BUGS.\n"
355 /* Signal code for the fatal signal that was received. */
356 int fatal_error_code
;
358 /* Nonzero if handling a fatal error already. */
359 int fatal_error_in_progress
;
361 /* If non-null, call this function from fatal_error_signal before
362 committing suicide. */
364 void (*fatal_error_signal_hook
) (void);
366 #ifdef FORWARD_SIGNAL_TO_MAIN_THREAD
367 /* When compiled with GTK and running under Gnome,
368 multiple threads may be created. Keep track of our main
369 thread to make sure signals are delivered to it (see syssignal.h). */
371 pthread_t main_thread
;
375 /* Handle bus errors, invalid instruction, etc. */
377 fatal_error_signal (int sig
)
379 SIGNAL_THREAD_CHECK (sig
);
380 fatal_error_code
= sig
;
381 signal (sig
, SIG_DFL
);
383 TOTALLY_UNBLOCK_INPUT
;
385 /* If fatal error occurs in code below, avoid infinite recursion. */
386 if (! fatal_error_in_progress
)
388 fatal_error_in_progress
= 1;
390 if (sig
== SIGTERM
|| sig
== SIGHUP
)
391 Fkill_emacs (make_number (sig
));
393 shut_down_emacs (sig
, 0, Qnil
);
396 /* Signal the same code; this time it will really be fatal.
397 Remember that since we're in a signal handler, the signal we're
398 going to send is probably blocked, so we have to unblock it if we
399 want to really receive it. */
401 sigunblock (sigmask (fatal_error_code
));
404 if (fatal_error_signal_hook
)
405 fatal_error_signal_hook ();
407 kill (getpid (), fatal_error_code
);
412 /* Handler for SIGDANGER. */
414 memory_warning_signal (sig
)
417 signal (sig
, memory_warning_signal
);
418 SIGNAL_THREAD_CHECK (sig
);
420 malloc_warning ("Operating system warns that virtual memory is running low.\n");
422 /* It might be unsafe to call do_auto_save now. */
423 force_auto_save_soon ();
427 /* We define abort, rather than using it from the library,
428 so that GDB can return from a breakpoint here.
429 MSDOS has its own definition in msdos.c. */
431 #if ! defined (DOS_NT) && ! defined (NO_ABORT)
436 kill (getpid (), SIGABRT
);
437 /* This shouldn't be executed, but it prevents a warning. */
443 /* Code for dealing with Lisp access to the Unix command line. */
446 init_cmdargs (int argc
, char **argv
, int skip_args
)
449 Lisp_Object name
, dir
, tem
;
450 int count
= SPECPDL_INDEX ();
451 Lisp_Object raw_name
;
456 raw_name
= build_string (argv
[0]);
458 /* Add /: to the front of the name
459 if it would otherwise be treated as magic. */
460 tem
= Ffind_file_name_handler (raw_name
, Qt
);
462 raw_name
= concat2 (build_string ("/:"), raw_name
);
464 Vinvocation_name
= Ffile_name_nondirectory (raw_name
);
465 Vinvocation_directory
= Ffile_name_directory (raw_name
);
467 /* If we got no directory in argv[0], search PATH to find where
468 Emacs actually came from. */
469 if (NILP (Vinvocation_directory
))
472 int yes
= openp (Vexec_path
, Vinvocation_name
,
473 Vexec_suffixes
, &found
, make_number (X_OK
));
476 /* Add /: to the front of the name
477 if it would otherwise be treated as magic. */
478 tem
= Ffind_file_name_handler (found
, Qt
);
480 found
= concat2 (build_string ("/:"), found
);
481 Vinvocation_directory
= Ffile_name_directory (found
);
485 if (!NILP (Vinvocation_directory
)
486 && NILP (Ffile_name_absolute_p (Vinvocation_directory
)))
487 /* Emacs was started with relative path, like ./emacs.
489 Vinvocation_directory
= Fexpand_file_name (Vinvocation_directory
, Qnil
);
491 Vinstallation_directory
= Qnil
;
493 if (!NILP (Vinvocation_directory
))
495 dir
= Vinvocation_directory
;
496 name
= Fexpand_file_name (Vinvocation_name
, dir
);
499 Lisp_Object tem
, lib_src_exists
;
500 Lisp_Object etc_exists
, info_exists
;
502 /* See if dir contains subdirs for use by Emacs.
503 Check for the ones that would exist in a build directory,
504 not including lisp and info. */
505 tem
= Fexpand_file_name (build_string ("lib-src"), dir
);
506 lib_src_exists
= Ffile_exists_p (tem
);
509 /* MSDOS installations frequently remove lib-src, but we still
510 must set installation-directory, or else info won't find
511 its files (it uses the value of installation-directory). */
512 tem
= Fexpand_file_name (build_string ("info"), dir
);
513 info_exists
= Ffile_exists_p (tem
);
518 if (!NILP (lib_src_exists
) || !NILP (info_exists
))
520 tem
= Fexpand_file_name (build_string ("etc"), dir
);
521 etc_exists
= Ffile_exists_p (tem
);
522 if (!NILP (etc_exists
))
524 Vinstallation_directory
525 = Ffile_name_as_directory (dir
);
530 /* See if dir's parent contains those subdirs. */
531 tem
= Fexpand_file_name (build_string ("../lib-src"), dir
);
532 lib_src_exists
= Ffile_exists_p (tem
);
536 /* See the MSDOS commentary above. */
537 tem
= Fexpand_file_name (build_string ("../info"), dir
);
538 info_exists
= Ffile_exists_p (tem
);
543 if (!NILP (lib_src_exists
) || !NILP (info_exists
))
545 tem
= Fexpand_file_name (build_string ("../etc"), dir
);
546 etc_exists
= Ffile_exists_p (tem
);
547 if (!NILP (etc_exists
))
549 tem
= Fexpand_file_name (build_string (".."), dir
);
550 Vinstallation_directory
551 = Ffile_name_as_directory (tem
);
556 /* If the Emacs executable is actually a link,
557 next try the dir that the link points into. */
558 tem
= Ffile_symlink_p (name
);
561 name
= Fexpand_file_name (tem
, dir
);
562 dir
= Ffile_name_directory (name
);
569 Vcommand_line_args
= Qnil
;
571 for (i
= argc
- 1; i
>= 0; i
--)
573 if (i
== 0 || i
> skip_args
)
574 /* For the moment, we keep arguments as is in unibyte strings.
575 They are decoded in the function command-line after we know
576 locale-coding-system. */
578 = Fcons (make_unibyte_string (argv
[i
], strlen (argv
[i
])),
582 unbind_to (count
, Qnil
);
585 DEFUN ("invocation-name", Finvocation_name
, Sinvocation_name
, 0, 0, 0,
586 doc
: /* Return the program name that was used to run Emacs.
587 Any directory names are omitted. */)
590 return Fcopy_sequence (Vinvocation_name
);
593 DEFUN ("invocation-directory", Finvocation_directory
, Sinvocation_directory
,
595 doc
: /* Return the directory name in which the Emacs executable was located. */)
598 return Fcopy_sequence (Vinvocation_directory
);
603 /* A valid but unlikely value for the TZ environment value.
604 It is OK (though a bit slower) if the user actually chooses this value. */
605 static char dump_tz
[] = "UtC0";
608 #ifndef ORDINARY_LINK
609 /* We don't include crtbegin.o and crtend.o in the link,
610 so these functions and variables might be missed.
611 Provide dummy definitions to avoid error.
612 (We don't have any real constructors or destructors.) */
614 #ifndef GCC_CTORS_IN_LIBC
615 void __do_global_ctors ()
617 void __do_global_ctors_aux ()
619 void __do_global_dtors ()
621 /* GNU/Linux has a bug in its library; avoid an error. */
623 char * __CTOR_LIST__
[2] = { (char *) (-1), 0 };
625 char * __DTOR_LIST__
[2] = { (char *) (-1), 0 };
626 #endif /* GCC_CTORS_IN_LIBC */
629 #endif /* __GNUC__ */
630 #endif /* ORDINARY_LINK */
632 /* Test whether the next argument in ARGV matches SSTR or a prefix of
633 LSTR (at least MINLEN characters). If so, then if VALPTR is non-null
634 (the argument is supposed to have a value) store in *VALPTR either
635 the next argument or the portion of this one after the equal sign.
636 ARGV is read starting at position *SKIPPTR; this index is advanced
637 by the number of arguments used.
639 Too bad we can't just use getopt for all of this, but we don't have
640 enough information to do it right. */
643 argmatch (char **argv
, int argc
, char *sstr
, char *lstr
, int minlen
, char **valptr
, int *skipptr
)
649 /* Don't access argv[argc]; give up in advance. */
650 if (argc
<= *skipptr
+ 1)
653 arg
= argv
[*skipptr
+1];
656 if (strcmp (arg
, sstr
) == 0)
660 *valptr
= argv
[*skipptr
+2];
667 arglen
= (valptr
!= NULL
&& (p
= index (arg
, '=')) != NULL
668 ? p
- arg
: strlen (arg
));
669 if (lstr
== 0 || arglen
< minlen
|| strncmp (arg
, lstr
, arglen
) != 0)
671 else if (valptr
== NULL
)
682 else if (argv
[*skipptr
+2] != NULL
)
684 *valptr
= argv
[*skipptr
+2];
694 #ifdef DOUG_LEA_MALLOC
696 /* malloc can be invoked even before main (e.g. by the dynamic
697 linker), so the dumped malloc state must be restored as early as
698 possible using this special hook. */
701 malloc_initialize_hook (void)
704 extern char **environ
;
709 if (!malloc_using_checking
)
710 /* Work around a bug in glibc's malloc. MALLOC_CHECK_ must be
711 ignored if the heap to be restored was constructed without
712 malloc checking. Can't use unsetenv, since that calls malloc. */
716 for (p
= environ
; p
&& *p
; p
++)
717 if (strncmp (*p
, "MALLOC_CHECK_=", 14) == 0)
726 malloc_set_state (malloc_state_ptr
);
727 #ifndef XMALLOC_OVERRUN_CHECK
728 free (malloc_state_ptr
);
733 if (my_heap_start
== 0)
734 my_heap_start
= sbrk (0);
735 malloc_using_checking
= getenv ("MALLOC_CHECK_") != NULL
;
739 void (*__malloc_initialize_hook
) (void) = malloc_initialize_hook
;
741 #endif /* DOUG_LEA_MALLOC */
746 main (int argc
, char **argv
)
751 char stack_bottom_variable
;
752 int do_initial_setlocale
;
754 #ifdef HAVE_SETRLIMIT
766 extern Lisp_Object
*stack_base
;
770 #if defined (USE_GTK) && defined (G_SLICE_ALWAYS_MALLOC)
771 /* This is used by the Cygwin build. */
772 setenv ("G_SLICE", "always-malloc", 1);
777 extern char my_endbss
[];
778 extern char *my_endbss_static
;
780 if (my_heap_start
== 0)
781 my_heap_start
= sbrk (0);
783 heap_bss_diff
= (char *)my_heap_start
- max (my_endbss
, my_endbss_static
);
786 #ifdef RUN_TIME_REMAP
788 run_time_remap (argv
[0]);
791 /* If using unexmacosx.c (set by s/darwin.h), we must do this. */
794 unexec_init_emacs_zone ();
797 sort_args (argc
, argv
);
799 while (argv
[argc
]) argc
++;
801 if (argmatch (argv
, argc
, "-version", "--version", 3, NULL
, &skip_args
))
803 const char *version
, *copyright
;
806 Lisp_Object tem
, tem2
;
807 tem
= Fsymbol_value (intern_c_string ("emacs-version"));
808 tem2
= Fsymbol_value (intern_c_string ("emacs-copyright"));
811 fprintf (stderr
, "Invalid value of `emacs-version'\n");
816 fprintf (stderr
, "Invalid value of `emacs-copyright'\n");
821 version
= SDATA (tem
);
822 copyright
= SDATA (tem2
);
827 version
= emacs_version
;
828 copyright
= emacs_copyright
;
830 printf ("GNU Emacs %s\n", version
);
831 printf ("%s\n", copyright
);
832 printf ("GNU Emacs comes with ABSOLUTELY NO WARRANTY.\n");
833 printf ("You may redistribute copies of Emacs\n");
834 printf ("under the terms of the GNU General Public License.\n");
835 printf ("For more information about these matters, ");
836 printf ("see the file named COPYING.\n");
839 if (argmatch (argv
, argc
, "-chdir", "--chdir", 2, &ch_to_dir
, &skip_args
))
840 if (chdir (ch_to_dir
) == -1)
842 fprintf (stderr
, "%s: Can't chdir to %s: %s\n",
843 argv
[0], ch_to_dir
, strerror (errno
));
848 #ifdef HAVE_PERSONALITY_LINUX32
850 && (strcmp (argv
[argc
-1], "dump") == 0
851 || strcmp (argv
[argc
-1], "bootstrap") == 0)
852 && ! getenv ("EMACS_HEAP_EXEC"))
854 /* Set this so we only do this once. */
855 putenv("EMACS_HEAP_EXEC=true");
857 /* A flag to turn off address randomization which is introduced
858 in linux kernel shipped with fedora core 4 */
859 #define ADD_NO_RANDOMIZE 0x0040000
860 personality (PER_LINUX32
| ADD_NO_RANDOMIZE
);
861 #undef ADD_NO_RANDOMIZE
863 execvp (argv
[0], argv
);
865 /* If the exec fails, try to dump anyway. */
868 #endif /* HAVE_PERSONALITY_LINUX32 */
871 /* Map in shared memory, if we are using that. */
873 if (argmatch (argv
, argc
, "-nl", "--no-shared-memory", 6, NULL
, &skip_args
))
876 /* The shared memory was just restored, which clobbered this. */
882 /* The shared memory was just restored, which clobbered this. */
887 #if defined (HAVE_SETRLIMIT) && defined (RLIMIT_STACK)
888 /* Extend the stack space available.
889 Don't do that if dumping, since some systems (e.g. DJGPP)
890 might define a smaller stack limit at that time. */
893 && (!noninteractive
|| initialized
)
895 && !getrlimit (RLIMIT_STACK
, &rlim
))
898 extern size_t re_max_failures
;
899 /* Approximate the amount regex.c needs per unit of re_max_failures. */
900 int ratio
= 20 * sizeof (char *);
901 /* Then add 33% to cover the size of the smaller stacks that regex.c
902 successively allocates and discards, on its way to the maximum. */
904 /* Add in some extra to cover
905 what we're likely to use for other reasons. */
906 newlim
= re_max_failures
* ratio
+ 200000;
908 /* NetBSD (at least NetBSD 1.2G and former) has a bug in its
909 stack allocation routine for new process that the allocation
910 fails if stack limit is not on page boundary. So, round up the
911 new limit to page boundary. */
912 newlim
= (newlim
+ getpagesize () - 1) / getpagesize () * getpagesize();
914 if (newlim
> rlim
.rlim_max
)
916 newlim
= rlim
.rlim_max
;
917 /* Don't let regex.c overflow the stack we have. */
918 re_max_failures
= (newlim
- 200000) / ratio
;
920 if (rlim
.rlim_cur
< newlim
)
921 rlim
.rlim_cur
= newlim
;
923 setrlimit (RLIMIT_STACK
, &rlim
);
925 #endif /* HAVE_SETRLIMIT and RLIMIT_STACK */
927 /* Record (approximately) where the stack begins. */
928 stack_bottom
= &stack_bottom_variable
;
932 #ifndef SYSTEM_MALLOC
933 /* Arrange to get warning messages as memory fills up. */
934 memory_warnings (0, malloc_warning
);
936 /* Call malloc at least once, to run the initial __malloc_hook.
937 Also call realloc and free for consistency. */
938 free (realloc (malloc (4), 4));
941 /* Arrange to disable interrupt input inside malloc etc. */
942 uninterrupt_malloc ();
943 # endif /* not SYNC_INPUT */
944 #endif /* not SYSTEM_MALLOC */
946 #ifdef FORWARD_SIGNAL_TO_MAIN_THREAD
947 main_thread
= pthread_self ();
948 #endif /* FORWARD_SIGNAL_TO_MAIN_THREAD */
950 #if defined (MSDOS) || defined (WINDOWSNT)
951 /* We do all file input/output as binary files. When we need to translate
952 newlines, we do that manually. */
954 #endif /* MSDOS || WINDOWSNT */
957 if (!isatty (fileno (stdin
)))
958 setmode (fileno (stdin
), O_BINARY
);
959 if (!isatty (fileno (stdout
)))
962 setmode (fileno (stdout
), O_BINARY
);
966 #ifdef SET_EMACS_PRIORITY
968 nice (emacs_priority
);
970 #endif /* SET_EMACS_PRIORITY */
972 /* Skip initial setlocale if LC_ALL is "C", as it's not needed in that case.
973 The build procedure uses this while dumping, to ensure that the
974 dumped Emacs does not have its system locale tables initialized,
975 as that might cause screwups when the dumped Emacs starts up. */
977 char *lc_all
= getenv ("LC_ALL");
978 do_initial_setlocale
= ! lc_all
|| strcmp (lc_all
, "C");
981 /* Set locale now, so that initial error messages are localized properly.
982 fixup_locale must wait until later, since it builds strings. */
983 if (do_initial_setlocale
)
984 setlocale (LC_ALL
, "");
986 inhibit_window_system
= 0;
988 /* Handle the -t switch, which specifies filename to use as terminal. */
992 if (argmatch (argv
, argc
, "-t", "--terminal", 4, &term
, &skip_args
))
997 result
= emacs_open (term
, O_RDWR
, 0);
1000 char *errstring
= strerror (errno
);
1001 fprintf (stderr
, "%s: %s: %s\n", argv
[0], term
, errstring
);
1007 fprintf (stderr
, "%s: %s: not a tty\n", argv
[0], term
);
1010 fprintf (stderr
, "Using %s\n", term
);
1011 #ifdef HAVE_WINDOW_SYSTEM
1012 inhibit_window_system
= 1; /* -t => -nw */
1019 /* Command line option --no-windows is deprecated and thus not mentioned
1020 in the manual and usage informations. */
1021 if (argmatch (argv
, argc
, "-nw", "--no-window-system", 6, NULL
, &skip_args
)
1022 || argmatch (argv
, argc
, "-nw", "--no-windows", 6, NULL
, &skip_args
))
1023 inhibit_window_system
= 1;
1025 /* Handle the -batch switch, which means don't do interactive display. */
1027 if (argmatch (argv
, argc
, "-batch", "--batch", 5, NULL
, &skip_args
))
1030 Vundo_outer_limit
= Qnil
;
1032 if (argmatch (argv
, argc
, "-script", "--script", 3, &junk
, &skip_args
))
1034 noninteractive
= 1; /* Set batch mode. */
1035 /* Convert --script to -scriptload, un-skip it, and sort again
1036 so that it will be handled in proper sequence. */
1037 /* FIXME broken for --script=FILE - is that supposed to work? */
1038 argv
[skip_args
- 1] = "-scriptload";
1040 sort_args (argc
, argv
);
1043 /* Handle the --help option, which gives a usage message. */
1044 if (argmatch (argv
, argc
, "-help", "--help", 3, NULL
, &skip_args
))
1046 printf (USAGE1
, argv
[0], USAGE2
);
1052 if (argmatch (argv
, argc
, "-daemon", "--daemon", 5, NULL
, &skip_args
)
1053 || argmatch (argv
, argc
, "-daemon", "--daemon", 5, &dname_arg
, &skip_args
))
1058 /* Start as a daemon: fork a new child process which will run the
1059 rest of the initialization code, then exit.
1061 Detaching a daemon requires the following steps:
1065 - close the tty file-descriptors
1067 We only want to do the last 2 steps once the daemon is ready to
1068 serve requests, i.e. after loading .emacs (initialization).
1069 OTOH initialization may start subprocesses (e.g. ispell) and these
1070 should be run from the proper process (the one that will end up
1071 running as daemon) and with the proper "session id" in order for
1072 them to keep working after detaching, so fork and setsid need to be
1073 performed before initialization.
1075 We want to avoid exiting before the server socket is ready, so
1076 use a pipe for synchronization. The parent waits for the child
1077 to close its end of the pipe (using `daemon-initialized')
1079 if (pipe (daemon_pipe
) == -1)
1081 fprintf (stderr
, "Cannot pipe!\n");
1085 #ifndef NS_IMPL_COCOA
1087 #else /* NS_IMPL_COCOA */
1088 /* Under Cocoa we must do fork+exec as CoreFoundation lib fails in
1089 forked process: http://developer.apple.com/ReleaseNotes/
1090 CoreFoundation/CoreFoundation.html)
1091 We mark being in the exec'd process by a daemon name argument of
1092 form "--daemon=\nFD0,FD1\nNAME" where FD are the pipe file descriptors,
1093 NAME is the original daemon name, if any. */
1094 if (!dname_arg
|| !strchr (dname_arg
, '\n'))
1095 f
= fork (); /* in orig */
1097 f
= 0; /* in exec'd */
1098 #endif /* NS_IMPL_COCOA */
1104 /* Close unused writing end of the pipe. */
1105 close (daemon_pipe
[1]);
1107 /* Just wait for the child to close its end of the pipe. */
1110 retval
= read (daemon_pipe
[0], &buf
, 1);
1112 while (retval
== -1 && errno
== EINTR
);
1116 fprintf (stderr
, "Error reading status from child\n");
1119 else if (retval
== 0)
1121 fprintf (stderr
, "Error: server did not start correctly\n");
1125 close (daemon_pipe
[0]);
1130 fprintf (stderr
, "Cannot fork!\n");
1134 #ifdef NS_IMPL_COCOA
1136 /* In orig process, forked as child, OR in exec'd. */
1137 if (!dname_arg
|| !strchr (dname_arg
, '\n'))
1138 { /* In orig, child: now exec w/special daemon name. */
1141 if (dname_arg
&& strlen (dname_arg
) > 70)
1143 fprintf (stderr
, "daemon: child name too long\n");
1147 sprintf (fdStr
, "--daemon=\n%d,%d\n%s", daemon_pipe
[0],
1148 daemon_pipe
[1], dname_arg
? dname_arg
: "");
1149 argv
[skip_args
] = fdStr
;
1151 execv (argv
[0], argv
);
1152 fprintf (stderr
, "emacs daemon: exec failed: %d\n", errno
);
1156 /* In exec'd: parse special dname into pipe and name info. */
1157 if (!dname_arg
|| !strchr (dname_arg
, '\n')
1158 || strlen (dname_arg
) < 1 || strlen (dname_arg
) > 70)
1160 fprintf (stderr
, "emacs daemon: daemon name absent or too long\n");
1163 dname_arg2
[0] = '\0';
1164 sscanf (dname_arg
, "\n%d,%d\n%s", &(daemon_pipe
[0]), &(daemon_pipe
[1]),
1166 dname_arg
= strlen (dname_arg2
) ? dname_arg2
: NULL
;
1168 #endif /* NS_IMPL_COCOA */
1171 daemon_name
= xstrdup (dname_arg
);
1172 /* Close unused reading end of the pipe. */
1173 close (daemon_pipe
[0]);
1174 /* Make sure that the used end of the pipe is closed on exec, so
1175 that it is not accessible to programs started from .emacs. */
1176 fcntl (daemon_pipe
[1], F_SETFD
, FD_CLOEXEC
);
1182 fprintf (stderr
, "This platform does not support the -daemon flag.\n");
1187 if (! noninteractive
)
1189 #if defined (USG5) && defined (INTERRUPT_INPUT)
1192 #if defined (HAVE_GTK_AND_PTHREAD) && !defined (SYSTEM_MALLOC) && !defined (DOUG_LEA_MALLOC)
1194 extern void malloc_enable_thread (void);
1196 malloc_enable_thread ();
1203 /* Don't catch SIGHUP if dumping. */
1210 sigblock (sigmask (SIGHUP
));
1211 /* In --batch mode, don't catch SIGHUP if already ignored.
1212 That makes nohup work. */
1213 if (! noninteractive
1214 || signal (SIGHUP
, SIG_IGN
) != SIG_IGN
)
1215 signal (SIGHUP
, fatal_error_signal
);
1216 sigunblock (sigmask (SIGHUP
));
1221 ! noninteractive
|| initialized
1227 /* Don't catch these signals in batch mode if dumping.
1228 On some machines, this sets static data that would make
1229 signal fail to work right when the dumped Emacs is run. */
1230 signal (SIGQUIT
, fatal_error_signal
);
1231 signal (SIGILL
, fatal_error_signal
);
1232 signal (SIGTRAP
, fatal_error_signal
);
1234 add_user_signal (SIGUSR1
, "sigusr1");
1237 add_user_signal (SIGUSR2
, "sigusr2");
1240 signal (SIGABRT
, fatal_error_signal
);
1243 signal (SIGHWE
, fatal_error_signal
);
1246 signal (SIGPRE
, fatal_error_signal
);
1249 signal (SIGORE
, fatal_error_signal
);
1252 signal (SIGUME
, fatal_error_signal
);
1255 signal (SIGDLK
, fatal_error_signal
);
1258 signal (SIGCPULIM
, fatal_error_signal
);
1261 /* This is missing on some systems - OS/2, for example. */
1262 signal (SIGIOT
, fatal_error_signal
);
1265 signal (SIGEMT
, fatal_error_signal
);
1267 signal (SIGFPE
, fatal_error_signal
);
1269 signal (SIGBUS
, fatal_error_signal
);
1271 signal (SIGSEGV
, fatal_error_signal
);
1273 signal (SIGSYS
, fatal_error_signal
);
1275 signal (SIGTERM
, fatal_error_signal
);
1277 signal (SIGXCPU
, fatal_error_signal
);
1280 signal (SIGXFSZ
, fatal_error_signal
);
1281 #endif /* SIGXFSZ */
1284 /* This just means available memory is getting low. */
1285 signal (SIGDANGER
, memory_warning_signal
);
1289 /* 20 is SIGCHLD, 21 is SIGTTIN, 22 is SIGTTOU. */
1290 signal (SIGXCPU
, fatal_error_signal
);
1292 signal (SIGIOINT
, fatal_error_signal
);
1294 signal (SIGGRANT
, fatal_error_signal
);
1295 signal (SIGRETRACT
, fatal_error_signal
);
1296 signal (SIGSOUND
, fatal_error_signal
);
1297 signal (SIGMSG
, fatal_error_signal
);
1301 noninteractive1
= noninteractive
;
1303 /* Perform basic initializations (not merely interning symbols). */
1310 init_character_once ();
1311 init_charset_once ();
1312 init_coding_once ();
1313 init_syntax_once (); /* Create standard syntax table. */
1314 init_category_once (); /* Create standard category table. */
1315 /* Must be done before init_buffer. */
1316 init_casetab_once ();
1317 init_buffer_once (); /* Create buffer table and some buffers. */
1318 init_minibuf_once (); /* Create list of minibuffers. */
1319 /* Must precede init_window_once. */
1321 /* Call syms_of_xfaces before init_window_once because that
1322 function creates Vterminal_frame. Termcap frames now use
1323 faces, and the face implementation uses some symbols as
1326 /* XXX syms_of_keyboard uses some symbols in keymap.c. It would
1327 be better to arrange things not to have this dependency. */
1329 /* Call syms_of_keyboard before init_window_once because
1330 keyboard sets up symbols that include some face names that
1331 the X support will want to use. This can happen when
1332 CANNOT_DUMP is defined. */
1333 syms_of_keyboard ();
1335 /* Called before syms_of_fileio, because it sets up Qerror_condition. */
1338 /* Before syms_of_coding to initialize Vgc_cons_threshold. */
1340 /* Before syms_of_coding because it initializes Qcharsetp. */
1342 /* Before init_window_once, because it sets up the
1343 Vcoding_system_hash_table. */
1344 syms_of_coding (); /* This should be after syms_of_fileio. */
1346 init_window_once (); /* Init the window system. */
1347 #ifdef HAVE_WINDOW_SYSTEM
1348 init_fringe_once (); /* Swap bitmaps if necessary. */
1349 #endif /* HAVE_WINDOW_SYSTEM */
1354 if (do_initial_setlocale
)
1357 Vsystem_messages_locale
= Vprevious_system_messages_locale
;
1358 Vsystem_time_locale
= Vprevious_system_time_locale
;
1363 #ifdef CLASH_DETECTION
1367 running_asynch_code
= 0;
1369 /* Handle --unibyte and the EMACS_UNIBYTE envvar,
1370 but not while dumping. */
1373 int inhibit_unibyte
= 0;
1375 /* --multibyte overrides EMACS_UNIBYTE. */
1376 if (argmatch (argv
, argc
, "-no-unibyte", "--no-unibyte", 4, NULL
, &skip_args
)
1377 || argmatch (argv
, argc
, "-multibyte", "--multibyte", 4, NULL
, &skip_args
)
1378 /* Ignore EMACS_UNIBYTE before dumping. */
1379 || (!initialized
&& noninteractive
))
1380 inhibit_unibyte
= 1;
1382 /* --unibyte requests that we set up to do everything with single-byte
1383 buffers and strings. We need to handle this before calling
1384 init_lread, init_editfns and other places that generate Lisp strings
1385 from text in the environment. */
1386 /* Actually this shouldn't be needed as of 20.4 in a generally
1387 unibyte environment. As handa says, environment values
1388 aren't now decoded; also existing buffers are now made
1389 unibyte during startup if .emacs sets unibyte. Tested with
1390 8-bit data in environment variables and /etc/passwd, setting
1391 unibyte and Latin-1 in .emacs. -- Dave Love */
1392 if (argmatch (argv
, argc
, "-unibyte", "--unibyte", 4, NULL
, &skip_args
)
1393 || argmatch (argv
, argc
, "-no-multibyte", "--no-multibyte", 4, NULL
, &skip_args
)
1394 || (getenv ("EMACS_UNIBYTE") && !inhibit_unibyte
))
1396 Lisp_Object old_log_max
;
1397 Lisp_Object symbol
, tail
;
1399 symbol
= intern_c_string ("enable-multibyte-characters");
1400 Fset_default (symbol
, Qnil
);
1404 /* Erase pre-dump messages in *Messages* now so no abort. */
1405 old_log_max
= Vmessage_log_max
;
1406 XSETFASTINT (Vmessage_log_max
, 0);
1407 message_dolog ("", 0, 1, 0);
1408 Vmessage_log_max
= old_log_max
;
1411 for (tail
= Vbuffer_alist
; CONSP (tail
);
1416 buffer
= Fcdr (XCAR (tail
));
1417 /* Make a multibyte buffer unibyte. */
1418 if (BUF_Z_BYTE (XBUFFER (buffer
)) > BUF_Z (XBUFFER (buffer
)))
1420 struct buffer
*current
= current_buffer
;
1422 set_buffer_temp (XBUFFER (buffer
));
1423 Fset_buffer_multibyte (Qnil
);
1424 set_buffer_temp (current
);
1427 message ("Warning: unibyte sessions are obsolete and will disappear");
1432 = argmatch (argv
, argc
, "-nl", "--no-loadup", 6, NULL
, &skip_args
);
1435 ns_alloc_autorelease_pool();
1436 if (!noninteractive
)
1438 #ifdef NS_IMPL_COCOA
1439 if (skip_args
< argc
)
1441 if (!strncmp(argv
[skip_args
], "-psn", 4))
1444 chdir (getenv ("HOME"));
1446 else if (skip_args
+1 < argc
&& !strncmp(argv
[skip_args
+1], "-psn", 4))
1449 chdir (getenv ("HOME"));
1454 #endif /* HAVE_NS */
1456 #ifdef HAVE_X_WINDOWS
1457 /* Stupid kludge to catch command-line display spec. We can't
1458 handle this argument entirely in window system dependent code
1459 because we don't even know which window system dependent code
1460 to run until we've recognized this argument. */
1462 char *displayname
= 0;
1463 int count_before
= skip_args
;
1465 /* Skip any number of -d options, but only use the last one. */
1468 int count_before_this
= skip_args
;
1470 if (argmatch (argv
, argc
, "-d", "--display", 3, &displayname
, &skip_args
))
1472 else if (argmatch (argv
, argc
, "-display", 0, 3, &displayname
, &skip_args
))
1477 count_before
= count_before_this
;
1480 /* If we have the form --display=NAME,
1481 convert it into -d name.
1482 This requires inserting a new element into argv. */
1483 if (displayname
!= 0 && skip_args
- count_before
== 1)
1485 char **new = (char **) xmalloc (sizeof (char *) * (argc
+ 2));
1488 for (j
= 0; j
< count_before
+ 1; j
++)
1490 new[count_before
+ 1] = "-d";
1491 new[count_before
+ 2] = displayname
;
1492 for (j
= count_before
+ 2; j
<argc
; j
++)
1493 new[j
+ 1] = argv
[j
];
1497 /* Change --display to -d, when its arg is separate. */
1498 else if (displayname
!= 0 && skip_args
> count_before
1499 && argv
[count_before
+ 1][1] == '-')
1500 argv
[count_before
+ 1] = "-d";
1502 /* Don't actually discard this arg. */
1503 skip_args
= count_before
;
1507 /* argmatch must not be used after here,
1508 except when bulding temacs
1509 because the -d argument has not been skipped in skip_args. */
1512 /* Call early 'cause init_environment needs it. */
1514 /* Set defaults for several environment variables. */
1516 init_environment (argc
, argv
, skip_args
);
1523 /* Initialize environment from registry settings. */
1524 init_environment (argv
);
1525 init_ntproc (); /* must precede init_editfns. */
1535 /* Initialize and GC-protect Vinitial_environment and
1536 Vprocess_environment before set_initial_environment fills them
1539 syms_of_callproc ();
1540 /* egetenv is a pretty low-level facility, which may get called in
1541 many circumstances; it seems flimsy to put off initializing it
1542 until calling init_callproc. */
1543 set_initial_environment ();
1544 /* AIX crashes are reported in system versions 3.2.3 and 3.2.4
1545 if this is not done. Do it after set_global_environment so that we
1546 don't pollute Vglobal_environment. */
1547 /* Setting LANG here will defeat the startup locale processing... */
1552 init_buffer (); /* Init default directory of main buffer. */
1554 init_callproc_1 (); /* Must precede init_cmdargs and init_sys_modes. */
1555 init_cmdargs (argc
, argv
, skip_args
); /* Must precede init_lread. */
1559 /* Erase any pre-dump messages in the message log, to avoid confusion. */
1560 Lisp_Object old_log_max
;
1561 old_log_max
= Vmessage_log_max
;
1562 XSETFASTINT (Vmessage_log_max
, 0);
1563 message_dolog ("", 0, 1, 0);
1564 Vmessage_log_max
= old_log_max
;
1567 init_callproc (); /* Must follow init_cmdargs but not init_sys_modes. */
1570 /* Intern the names of all standard functions and variables;
1571 define standard keys. */
1575 /* The basic levels of Lisp must come first. Note that
1576 syms_of_data and some others have already been called. */
1582 syms_of_floatfns ();
1585 syms_of_bytecode ();
1587 syms_of_casefiddle ();
1589 syms_of_category ();
1591 syms_of_character ();
1598 #ifdef CLASH_DETECTION
1599 syms_of_filelock ();
1600 #endif /* CLASH_DETECTION */
1603 /* syms_of_keymap (); */
1611 syms_of_terminal ();
1617 syms_of_textprop ();
1618 syms_of_composite ();
1621 #endif /* WINDOWSNT */
1625 #ifdef HAVE_WINDOW_SYSTEM
1628 #endif /* HAVE_WINDOW_SYSTEM */
1629 #ifdef HAVE_X_WINDOWS
1634 syms_of_xsettings ();
1641 #endif /* HAVE_X_WINDOWS */
1648 syms_of_w32select ();
1651 #endif /* HAVE_NTGUI */
1661 syms_of_nsselect ();
1663 #endif /* HAVE_NS */
1666 syms_of_dbusbind ();
1667 #endif /* HAVE_DBUS */
1677 keys_of_casefiddle ();
1680 keys_of_keyboard ();
1686 /* Initialization that must be done even if the global variable
1687 initialized is non zero. */
1689 globals_of_w32fns ();
1690 globals_of_w32menu ();
1691 globals_of_w32select ();
1692 #endif /* HAVE_NTGUI */
1697 init_editfns (); /* init_process uses Voperating_system_release. */
1698 init_process (); /* init_display uses add_keyboard_wait_descriptor. */
1699 init_keyboard (); /* This too must precede init_sys_modes. */
1700 if (!noninteractive
)
1701 init_display (); /* Determine terminal type. Calls init_sys_modes. */
1704 #ifdef HAVE_WINDOW_SYSTEM
1707 #endif /* HAVE_WINDOW_SYSTEM */
1719 /* Handle -l loadup, args passed by Makefile. */
1720 if (argmatch (argv
, argc
, "-l", "--load", 3, &file
, &skip_args
))
1721 Vtop_level
= Fcons (intern_c_string ("load"),
1722 Fcons (build_string (file
), Qnil
));
1723 /* Unless next switch is -nl, load "loadup.el" first thing. */
1725 Vtop_level
= Fcons (intern_c_string ("load"),
1726 Fcons (build_string ("loadup.el"), Qnil
));
1733 /* If the execution TZ happens to be the same as the dump TZ,
1734 change it to some other value and then change it back,
1735 to force the underlying implementation to reload the TZ info.
1736 This is needed on implementations that load TZ info from files,
1737 since the TZ file contents may differ between dump and execution. */
1738 char *tz
= getenv ("TZ");
1739 if (tz
&& !strcmp (tz
, dump_tz
))
1749 /* Set up for profiling. This is known to work on FreeBSD,
1750 GNU/Linux and MinGW. It might work on some other systems too.
1751 Give it a try and tell us if it works on your system. To compile
1752 for profiling, use the configure option --enable-profiling. */
1753 #if defined (__FreeBSD__) || defined (GNU_LINUX) || defined(__MINGW32__)
1757 extern void _mcleanup ();
1759 extern unsigned char etext
asm ("etext");
1763 extern void safe_bcopy ();
1766 /* This uses safe_bcopy because that function comes first in the
1767 Emacs executable. It might be better to use something that
1768 gives the start of the text segment, but start_of_text is not
1769 defined on all systems now. */
1770 /* FIXME: Does not work on architectures with function
1772 monstartup (safe_bcopy
, &etext
);
1781 #ifdef LOCALTIME_CACHE
1782 /* Some versions of localtime have a bug. They cache the value of the time
1783 zone rather than looking it up every time. Since localtime() is
1784 called to bolt the undumping time into the undumped emacs, this
1785 results in localtime ignoring the TZ environment variable.
1786 This flushes the new TZ value into localtime. */
1788 #endif /* defined (LOCALTIME_CACHE) */
1790 /* Enter editor command loop. This never returns. */
1796 /* Sort the args so we can find the most important ones
1797 at the beginning of argv. */
1799 /* First, here's a table of all the standard options. */
1801 struct standard_args
1804 const char *longname
;
1809 const struct standard_args standard_args
[] =
1811 { "-version", "--version", 150, 0 },
1812 { "-chdir", "--chdir", 130, 1 },
1813 { "-t", "--terminal", 120, 1 },
1814 { "-nw", "--no-window-system", 110, 0 },
1815 { "-nw", "--no-windows", 110, 0 },
1816 { "-batch", "--batch", 100, 0 },
1817 { "-script", "--script", 100, 1 },
1818 { "-daemon", "--daemon", 99, 0 },
1819 { "-help", "--help", 90, 0 },
1820 { "-no-unibyte", "--no-unibyte", 83, 0 },
1821 { "-multibyte", "--multibyte", 82, 0 },
1822 { "-unibyte", "--unibyte", 81, 0 },
1823 { "-no-multibyte", "--no-multibyte", 80, 0 },
1824 { "-nl", "--no-loadup", 70, 0 },
1825 /* -d must come last before the options handled in startup.el. */
1826 { "-d", "--display", 60, 1 },
1827 { "-display", 0, 60, 1 },
1828 /* Now for the options handled in `command-line' (startup.el). */
1829 { "-Q", "--quick", 55, 0 },
1830 { "-quick", 0, 55, 0 },
1831 { "-q", "--no-init-file", 50, 0 },
1832 { "-no-init-file", 0, 50, 0 },
1833 { "-no-site-file", "--no-site-file", 40, 0 },
1834 { "-u", "--user", 30, 1 },
1835 { "-user", 0, 30, 1 },
1836 { "-debug-init", "--debug-init", 20, 0 },
1837 { "-iconic", "--iconic", 15, 0 },
1838 { "-D", "--basic-display", 12, 0},
1839 { "-basic-display", 0, 12, 0},
1840 { "-nbc", "--no-blinking-cursor", 12, 0 },
1841 /* Now for the options handled in `command-line-1' (startup.el). */
1842 { "-nbi", "--no-bitmap-icon", 10, 0 },
1843 { "-bg", "--background-color", 10, 1 },
1844 { "-background", 0, 10, 1 },
1845 { "-fg", "--foreground-color", 10, 1 },
1846 { "-foreground", 0, 10, 1 },
1847 { "-bd", "--border-color", 10, 1 },
1848 { "-bw", "--border-width", 10, 1 },
1849 { "-ib", "--internal-border", 10, 1 },
1850 { "-ms", "--mouse-color", 10, 1 },
1851 { "-cr", "--cursor-color", 10, 1 },
1852 { "-fn", "--font", 10, 1 },
1853 { "-font", 0, 10, 1 },
1854 { "-fs", "--fullscreen", 10, 0 },
1855 { "-fw", "--fullwidth", 10, 0 },
1856 { "-fh", "--fullheight", 10, 0 },
1857 { "-mm", "--maximized", 10, 0 },
1858 { "-g", "--geometry", 10, 1 },
1859 { "-geometry", 0, 10, 1 },
1860 { "-T", "--title", 10, 1 },
1861 { "-title", 0, 10, 1 },
1862 { "-name", "--name", 10, 1 },
1863 { "-xrm", "--xrm", 10, 1 },
1864 { "-parent-id", "--parent-id", 10, 1 },
1865 { "-r", "--reverse-video", 5, 0 },
1867 { "-reverse", 0, 5, 0 },
1868 { "-hb", "--horizontal-scroll-bars", 5, 0 },
1869 { "-vb", "--vertical-scroll-bars", 5, 0 },
1870 { "-color", "--color", 5, 0},
1871 { "-no-splash", "--no-splash", 3, 0 },
1872 { "-no-desktop", "--no-desktop", 3, 0 },
1874 { "-NSAutoLaunch", 0, 5, 1 },
1875 { "-NXAutoLaunch", 0, 5, 1 },
1876 { "-disable-font-backend", "--disable-font-backend", 65, 0 },
1877 { "-_NSMachLaunch", 0, 85, 1 },
1878 { "-MachLaunch", 0, 85, 1 },
1879 { "-macosx", 0, 85, 0 },
1880 { "-NSHost", 0, 85, 1 },
1882 /* These have the same priority as ordinary file name args,
1883 so they are not reordered with respect to those. */
1884 { "-L", "--directory", 0, 1 },
1885 { "-directory", 0, 0, 1 },
1886 { "-l", "--load", 0, 1 },
1887 { "-load", 0, 0, 1 },
1888 /* This has no longname, because using --scriptload confuses sort_args,
1889 because then the --script long option seems to match twice; ie
1890 you can't have a long option which is a prefix of another long
1891 option. In any case, this is entirely an internal option. */
1892 { "-scriptload", NULL
, 0, 1 },
1893 { "-f", "--funcall", 0, 1 },
1894 { "-funcall", 0, 0, 1 },
1895 { "-eval", "--eval", 0, 1 },
1896 { "-execute", "--execute", 0, 1 },
1897 { "-find-file", "--find-file", 0, 1 },
1898 { "-visit", "--visit", 0, 1 },
1899 { "-file", "--file", 0, 1 },
1900 { "-insert", "--insert", 0, 1 },
1902 { "-NXOpen", 0, 0, 1 },
1903 { "-NXOpenTemp", 0, 0, 1 },
1904 { "-NSOpen", 0, 0, 1 },
1905 { "-NSOpenTemp", 0, 0, 1 },
1906 { "-GSFilePath", 0, 0, 1 },
1908 /* This should be processed after ordinary file name args and the like. */
1909 { "-kill", "--kill", -10, 0 },
1912 /* Reorder the elements of ARGV (assumed to have ARGC elements)
1913 so that the highest priority ones come first.
1914 Do not change the order of elements of equal priority.
1915 If an option takes an argument, keep it and its argument together.
1917 If an option that takes no argument appears more
1918 than once, eliminate all but one copy of it. */
1921 sort_args (int argc
, char **argv
)
1923 char **new = (char **) xmalloc (sizeof (char *) * argc
);
1924 /* For each element of argv,
1925 the corresponding element of options is:
1926 0 for an option that takes no arguments,
1927 1 for an option that takes one argument, etc.
1928 -1 for an ordinary non-option argument. */
1929 int *options
= (int *) xmalloc (sizeof (int) * argc
);
1930 int *priority
= (int *) xmalloc (sizeof (int) * argc
);
1932 int incoming_used
= 1;
1936 /* Categorize all the options,
1937 and figure out which argv elts are option arguments. */
1938 for (from
= 1; from
< argc
; from
++)
1942 if (argv
[from
][0] == '-')
1947 /* If we have found "--", don't consider
1948 any more arguments as options. */
1949 if (argv
[from
][1] == '-' && argv
[from
][2] == 0)
1951 /* Leave the "--", and everything following it, at the end. */
1952 for (; from
< argc
; from
++)
1954 priority
[from
] = -100;
1960 /* Look for a match with a known old-fashioned option. */
1961 for (i
= 0; i
< sizeof (standard_args
) / sizeof (standard_args
[0]); i
++)
1962 if (!strcmp (argv
[from
], standard_args
[i
].name
))
1964 options
[from
] = standard_args
[i
].nargs
;
1965 priority
[from
] = standard_args
[i
].priority
;
1966 if (from
+ standard_args
[i
].nargs
>= argc
)
1967 fatal ("Option `%s' requires an argument\n", argv
[from
]);
1968 from
+= standard_args
[i
].nargs
;
1972 /* Look for a match with a known long option.
1973 MATCH is -1 if no match so far, -2 if two or more matches so far,
1974 >= 0 (the table index of the match) if just one match so far. */
1975 if (argv
[from
][1] == '-')
1978 thislen
= strlen (argv
[from
]);
1979 equals
= index (argv
[from
], '=');
1981 thislen
= equals
- argv
[from
];
1984 i
< sizeof (standard_args
) / sizeof (standard_args
[0]); i
++)
1985 if (standard_args
[i
].longname
1986 && !strncmp (argv
[from
], standard_args
[i
].longname
,
1995 /* If we found exactly one match, use that. */
1998 options
[from
] = standard_args
[match
].nargs
;
1999 priority
[from
] = standard_args
[match
].priority
;
2000 /* If --OPTION=VALUE syntax is used,
2001 this option uses just one argv element. */
2004 if (from
+ options
[from
] >= argc
)
2005 fatal ("Option `%s' requires an argument\n", argv
[from
]);
2006 from
+= options
[from
];
2008 /* FIXME When match < 0, shouldn't there be some error,
2009 or at least indication to the user that there was a
2016 /* Copy the arguments, in order of decreasing priority, to NEW. */
2018 while (incoming_used
< argc
)
2021 int best_priority
= -9999;
2023 /* Find the highest priority remaining option.
2024 If several have equal priority, take the first of them. */
2025 for (from
= 1; from
< argc
; from
++)
2027 if (argv
[from
] != 0 && priority
[from
] > best_priority
)
2029 best_priority
= priority
[from
];
2032 /* Skip option arguments--they are tied to the options. */
2033 if (options
[from
] > 0)
2034 from
+= options
[from
];
2040 /* Copy the highest priority remaining option, with its args, to NEW.
2041 Unless it is a duplicate of the previous one. */
2042 if (! (options
[best
] == 0
2043 && ! strcmp (new[to
- 1], argv
[best
])))
2045 new[to
++] = argv
[best
];
2046 for (i
= 0; i
< options
[best
]; i
++)
2047 new[to
++] = argv
[best
+ i
+ 1];
2050 incoming_used
+= 1 + (options
[best
] > 0 ? options
[best
] : 0);
2052 /* Clear out this option in ARGV. */
2054 for (i
= 0; i
< options
[best
]; i
++)
2055 argv
[best
+ i
+ 1] = 0;
2058 /* If duplicate options were deleted, fill up extra space with null ptrs. */
2062 memcpy (argv
, new, sizeof (char *) * argc
);
2069 DEFUN ("kill-emacs", Fkill_emacs
, Skill_emacs
, 0, 1, "P",
2070 doc
: /* Exit the Emacs job and kill it.
2071 If ARG is an integer, return ARG as the exit program code.
2072 If ARG is a string, stuff it as keyboard input.
2074 The value of `kill-emacs-hook', if not void,
2075 is a list of functions (of no args),
2076 all of which are called before Emacs is actually killed. */)
2079 struct gcpro gcpro1
;
2086 if (!NILP (Vrun_hooks
) && !noninteractive
)
2087 call1 (Vrun_hooks
, intern ("kill-emacs-hook"));
2091 shut_down_emacs (0, 0, STRINGP (arg
) ? arg
: Qnil
);
2093 /* If we have an auto-save list file,
2094 kill it because we are exiting Emacs deliberately (not crashing).
2095 Do it after shut_down_emacs, which does an auto-save. */
2096 if (STRINGP (Vauto_save_list_file_name
))
2097 unlink (SDATA (Vauto_save_list_file_name
));
2099 exit (INTEGERP (arg
) ? XINT (arg
) : EXIT_SUCCESS
);
2105 /* Perform an orderly shutdown of Emacs. Autosave any modified
2106 buffers, kill any child processes, clean up the terminal modes (if
2107 we're in the foreground), and other stuff like that. Don't perform
2108 any redisplay; this may be called when Emacs is shutting down in
2109 the background, or after its X connection has died.
2111 If SIG is a signal number, print a message for it.
2113 This is called by fatal signal handlers, X protocol error handlers,
2117 shut_down_emacs (sig
, no_x
, stuff
)
2121 /* Prevent running of hooks from now on. */
2124 /* Don't update display from now on. */
2125 Vinhibit_redisplay
= Qt
;
2127 /* If we are controlling the terminal, reset terminal modes. */
2128 #ifdef EMACS_HAVE_TTY_PGRP
2130 int pgrp
= EMACS_GETPGRP (0);
2133 if (EMACS_GET_TTY_PGRP (0, &tpgrp
) != -1
2136 reset_all_sys_modes ();
2137 if (sig
&& sig
!= SIGTERM
)
2138 fprintf (stderr
, "Fatal error (%d)", sig
);
2143 reset_all_sys_modes ();
2146 stuff_buffered_input (stuff
);
2149 inhibit_sentinels
= 1;
2151 kill_buffer_processes (Qnil
);
2152 Fdo_auto_save (Qt
, Qnil
);
2154 #ifdef CLASH_DETECTION
2155 unlock_all_files ();
2158 #if 0 /* This triggers a bug in XCloseDisplay and is not needed. */
2159 #ifdef HAVE_X_WINDOWS
2160 /* It's not safe to call intern here. Maybe we are crashing. */
2161 if (!noninteractive
&& SYMBOLP (Vinitial_window_system
)
2162 && SCHARS (SYMBOL_NAME (Vinitial_window_system
)) == 1
2163 && SREF (SYMBOL_NAME (Vinitial_window_system
), 0) == 'x'
2165 Fx_close_current_connection ();
2166 #endif /* HAVE_X_WINDOWS */
2170 /* There is a tendency for a SIGIO signal to arrive within exit,
2171 and cause a SIGHUP because the input descriptor is already closed. */
2173 signal (SIGIO
, SIG_IGN
);
2180 /* Do this only if terminating normally, we want glyph matrices
2181 etc. in a core dump. */
2182 if (sig
== 0 || sig
== SIGTERM
)
2184 check_glyph_memory ();
2185 check_message_stack ();
2193 ns_term_shutdown (sig
);
2201 DEFUN ("dump-emacs", Fdump_emacs
, Sdump_emacs
, 2, 2, 0,
2202 doc
: /* Dump current state of Emacs into executable file FILENAME.
2203 Take symbols from SYMFILE (presumably the file you executed to run Emacs).
2204 This is used in the file `loadup.el' when building Emacs.
2206 You must run Emacs in batch mode in order to dump it. */)
2207 (Lisp_Object filename
, Lisp_Object symfile
)
2209 extern char my_edata
[];
2212 int count
= SPECPDL_INDEX ();
2216 if (! noninteractive
)
2217 error ("Dumping Emacs works only in batch mode");
2220 if (heap_bss_diff
> MAX_HEAP_BSS_DIFF
)
2222 fprintf (stderr
, "**************************************************\n");
2223 fprintf (stderr
, "Warning: Your system has a gap between BSS and the\n");
2224 fprintf (stderr
, "heap (%lu bytes). This usually means that exec-shield\n",
2226 fprintf (stderr
, "or something similar is in effect. The dump may\n");
2227 fprintf (stderr
, "fail because of this. See the section about\n");
2228 fprintf (stderr
, "exec-shield in etc/PROBLEMS for more information.\n");
2229 fprintf (stderr
, "**************************************************\n");
2231 #endif /* GNU_LINUX */
2233 /* Bind `command-line-processed' to nil before dumping,
2234 so that the dumped Emacs will process its command line
2235 and set up to work with X windows if appropriate. */
2236 symbol
= intern ("command-line-processed");
2237 specbind (symbol
, Qnil
);
2239 CHECK_STRING (filename
);
2240 filename
= Fexpand_file_name (filename
, Qnil
);
2241 if (!NILP (symfile
))
2243 CHECK_STRING (symfile
);
2244 if (SCHARS (symfile
))
2245 symfile
= Fexpand_file_name (symfile
, Qnil
);
2249 Vpurify_flag
= Qnil
;
2252 set_time_zone_rule (dump_tz
);
2253 #ifndef LOCALTIME_CACHE
2254 /* Force a tz reload, since set_time_zone_rule doesn't. */
2260 /* Tell malloc where start of impure now is. */
2261 /* Also arrange for warnings when nearly out of space. */
2262 #ifndef SYSTEM_MALLOC
2264 /* On Windows, this was done before dumping, and that once suffices.
2265 Meanwhile, my_edata is not valid on Windows. */
2266 memory_warnings (my_edata
, malloc_warning
);
2267 #endif /* not WINDOWSNT */
2269 #if !defined (SYSTEM_MALLOC) && defined (HAVE_GTK_AND_PTHREAD) && !defined SYNC_INPUT
2270 /* Pthread may call malloc before main, and then we will get an endless
2271 loop, because pthread_self (see alloc.c) calls malloc the first time
2272 it is called on some systems. */
2273 reset_malloc_hooks ();
2275 #ifdef DOUG_LEA_MALLOC
2276 malloc_state_ptr
= malloc_get_state ();
2279 #ifdef USE_MMAP_FOR_BUFFERS
2282 unexec (SDATA (filename
),
2283 !NILP (symfile
) ? SDATA (symfile
) : 0, my_edata
, 0, 0);
2284 #ifdef USE_MMAP_FOR_BUFFERS
2287 #ifdef DOUG_LEA_MALLOC
2288 free (malloc_state_ptr
);
2293 return unbind_to (count
, Qnil
);
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 (int category
, Lisp_Object
*plocale
, Lisp_Object desired_locale
)
2313 if (! EQ (*plocale
, desired_locale
))
2315 *plocale
= desired_locale
;
2316 setlocale (category
, (STRINGP (desired_locale
)
2317 ? (char *) SDATA (desired_locale
)
2322 /* Set system time locale to match Vsystem_time_locale, if possible. */
2324 synchronize_system_time_locale ()
2326 synchronize_locale (LC_TIME
, &Vprevious_system_time_locale
,
2327 Vsystem_time_locale
);
2330 /* Set system messages locale to match Vsystem_messages_locale, if
2333 synchronize_system_messages_locale ()
2336 synchronize_locale (LC_MESSAGES
, &Vprevious_system_messages_locale
,
2337 Vsystem_messages_locale
);
2340 #endif /* HAVE_SETLOCALE */
2347 decode_env_path (evarname
, defalt
)
2348 char *evarname
, *defalt
;
2350 register char *path
, *p
;
2351 Lisp_Object lpath
, element
, tem
;
2353 /* It's okay to use getenv here, because this function is only used
2354 to initialize variables when Emacs starts up, and isn't called
2357 path
= (char *) getenv (evarname
);
2363 /* Ensure values from the environment use the proper directory separator. */
2366 p
= alloca (strlen (path
) + 1);
2370 dostounix_filename (path
);
2376 p
= index (path
, SEPCHAR
);
2377 if (!p
) p
= path
+ strlen (path
);
2378 element
= (p
- path
? make_string (path
, p
- path
)
2379 : build_string ("."));
2381 /* Add /: to the front of the name
2382 if it would otherwise be treated as magic. */
2383 tem
= Ffind_file_name_handler (element
, Qt
);
2385 /* However, if the handler says "I'm safe",
2386 don't bother adding /:. */
2390 prop
= Fget (tem
, intern ("safe-magic"));
2396 element
= concat2 (build_string ("/:"), element
);
2398 lpath
= Fcons (element
, lpath
);
2404 return Fnreverse (lpath
);
2407 DEFUN ("daemonp", Fdaemonp
, Sdaemonp
, 0, 0, 0,
2408 doc
: /* Return non-nil if the current emacs process is a daemon.
2409 If the daemon was given a name argument, return that name. */)
2414 return build_string (daemon_name
);
2421 DEFUN ("daemon-initialized", Fdaemon_initialized
, Sdaemon_initialized
, 0, 0, 0,
2422 doc
: /* Mark the Emacs daemon as being initialized.
2423 This finishes the daemonization process by doing the other half of detaching
2424 from the parent process and its tty file descriptors. */)
2430 error ("This function can only be called if emacs is run as a daemon");
2432 if (daemon_pipe
[1] < 0)
2433 error ("The daemon has already been initialized");
2435 if (NILP (Vafter_init_time
))
2436 error ("This function can only be called after loading the init files");
2438 /* Get rid of stdin, stdout and stderr. */
2439 nfd
= open ("/dev/null", O_RDWR
);
2445 /* Closing the pipe will notify the parent that it can exit.
2446 FIXME: In case some other process inherited the pipe, closing it here
2447 won't notify the parent because it's still open elsewhere, so we
2448 additionally send a byte, just to make sure the parent really exits.
2449 Instead, we should probably close the pipe in start-process and
2450 call-process to make sure the pipe is never inherited by
2452 write (daemon_pipe
[1], "\n", 1);
2453 close (daemon_pipe
[1]);
2454 /* Set it to an invalid value so we know we've already run this function. */
2455 daemon_pipe
[1] = -1;
2462 Qfile_name_handler_alist
= intern_c_string ("file-name-handler-alist");
2463 staticpro (&Qfile_name_handler_alist
);
2466 defsubr (&Sdump_emacs
);
2469 defsubr (&Skill_emacs
);
2471 defsubr (&Sinvocation_name
);
2472 defsubr (&Sinvocation_directory
);
2473 defsubr (&Sdaemonp
);
2474 defsubr (&Sdaemon_initialized
);
2476 DEFVAR_LISP ("command-line-args", &Vcommand_line_args
,
2477 doc
: /* Args passed by shell to Emacs, as a list of strings.
2478 Many arguments are deleted from the list as they are processed. */);
2480 DEFVAR_LISP ("system-type", &Vsystem_type
,
2481 doc
: /* The value is a symbol indicating the type of operating system you are using.
2483 `gnu' compiled for a GNU Hurd system.
2484 `gnu/linux' compiled for a GNU/Linux system.
2485 `gnu/kfreebsd' compiled for a GNU system with a FreeBSD kernel.
2486 `darwin' compiled for Darwin (GNU-Darwin, Mac OS X, ...).
2487 `ms-dos' compiled as an MS-DOS application.
2488 `windows-nt' compiled as a native W32 application.
2489 `cygwin' compiled using the Cygwin library.
2490 Anything else (in Emacs 23.1, the possibilities are: aix, berkeley-unix,
2491 hpux, irix, lynxos 3.0.1, usg-unix-v) indicates some sort of Unix system. */);
2492 Vsystem_type
= intern_c_string (SYSTEM_TYPE
);
2494 DEFVAR_LISP ("system-configuration", &Vsystem_configuration
,
2495 doc
: /* Value is string indicating configuration Emacs was built for.
2496 On MS-Windows, the value reflects the OS flavor and version on which
2497 Emacs is running. */);
2498 Vsystem_configuration
= build_string (EMACS_CONFIGURATION
);
2500 DEFVAR_LISP ("system-configuration-options", &Vsystem_configuration_options
,
2501 doc
: /* String containing the configuration options Emacs was built with. */);
2502 Vsystem_configuration_options
= build_string (EMACS_CONFIG_OPTIONS
);
2504 DEFVAR_BOOL ("noninteractive", &noninteractive1
,
2505 doc
: /* Non-nil means Emacs is running without interactive terminal. */);
2507 DEFVAR_LISP ("kill-emacs-hook", &Vkill_emacs_hook
,
2508 doc
: /* Hook to be run when `kill-emacs' is called.
2509 Since `kill-emacs' may be invoked when the terminal is disconnected (or
2510 in other similar situations), functions placed on this hook should not
2511 expect to be able to interact with the user. To ask for confirmation,
2512 see `kill-emacs-query-functions' instead.
2514 The hook is not run in batch mode, i.e., if `noninteractive' is non-nil. */);
2515 Vkill_emacs_hook
= Qnil
;
2517 DEFVAR_INT ("emacs-priority", &emacs_priority
,
2518 doc
: /* Priority for Emacs to run at.
2519 This value is effective only if set before Emacs is dumped,
2520 and only if the Emacs executable is installed with setuid to permit
2521 it to change priority. (Emacs sets its uid back to the real uid.)
2522 Currently, you need to define SET_EMACS_PRIORITY in `config.h'
2523 before you compile Emacs, to enable the code for this feature. */);
2526 DEFVAR_LISP ("path-separator", &Vpath_separator
,
2527 doc
: /* String containing the character that separates directories in
2528 search paths, such as PATH and other similar environment variables. */);
2531 Vpath_separator
= make_string (&c
, 1);
2534 DEFVAR_LISP ("invocation-name", &Vinvocation_name
,
2535 doc
: /* The program name that was used to run Emacs.
2536 Any directory names are omitted. */);
2538 DEFVAR_LISP ("invocation-directory", &Vinvocation_directory
,
2539 doc
: /* The directory in which the Emacs executable was found, to run it.
2540 The value is nil if that directory's name is not known. */);
2542 DEFVAR_LISP ("installation-directory", &Vinstallation_directory
,
2543 doc
: /* A directory within which to look for the `lib-src' and `etc' directories.
2544 This is non-nil when we can't find those directories in their standard
2545 installed locations, but we can find them near where the Emacs executable
2547 Vinstallation_directory
= Qnil
;
2549 DEFVAR_LISP ("system-messages-locale", &Vsystem_messages_locale
,
2550 doc
: /* System locale for messages. */);
2551 Vsystem_messages_locale
= Qnil
;
2553 DEFVAR_LISP ("previous-system-messages-locale",
2554 &Vprevious_system_messages_locale
,
2555 doc
: /* Most recently used system locale for messages. */);
2556 Vprevious_system_messages_locale
= Qnil
;
2558 DEFVAR_LISP ("system-time-locale", &Vsystem_time_locale
,
2559 doc
: /* System locale for time. */);
2560 Vsystem_time_locale
= Qnil
;
2562 DEFVAR_LISP ("previous-system-time-locale", &Vprevious_system_time_locale
,
2563 doc
: /* Most recently used system locale for time. */);
2564 Vprevious_system_time_locale
= Qnil
;
2566 DEFVAR_LISP ("before-init-time", &Vbefore_init_time
,
2567 doc
: /* Value of `current-time' before Emacs begins initialization. */);
2568 Vbefore_init_time
= Qnil
;
2570 DEFVAR_LISP ("after-init-time", &Vafter_init_time
,
2571 doc
: /* Value of `current-time' after loading the init files.
2572 This is nil during initialization. */);
2573 Vafter_init_time
= Qnil
;
2575 DEFVAR_BOOL ("inhibit-x-resources", &inhibit_x_resources
,
2576 doc
: /* If non-nil, X resources, Windows Registry settings, and NS defaults are not used. */);
2577 inhibit_x_resources
= 0;
2579 DEFVAR_LISP ("emacs-copyright", &Vemacs_copyright
,
2580 doc
: /* Short copyright string for this version of Emacs. */);
2581 Vemacs_copyright
= build_string (emacs_copyright
);
2583 DEFVAR_LISP ("emacs-version", &Vemacs_version
,
2584 doc
: /* Version numbers of this version of Emacs. */);
2585 Vemacs_version
= build_string (emacs_version
);
2587 /* Make sure IS_DAEMON starts up as false. */
2591 /* arch-tag: 7bfd356a-c720-4612-8ab6-aa4222931c2e
2592 (do not change this comment) */