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glibc  2.9
_exit.c
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00001 /* Copyright (C) 1991, 1997, 1999 Free Software Foundation, Inc.
00002    This file is part of the GNU C Library.
00003    Contributed by Joel Sherrill (jsherril@redstone-emh2.army.mil),
00004      On-Line Applications Research Corporation.
00005 
00006    The GNU C Library is free software; you can redistribute it and/or
00007    modify it under the terms of the GNU Lesser General Public
00008    License as published by the Free Software Foundation; either
00009    version 2.1 of the License, or (at your option) any later version.
00010 
00011    The GNU C Library is distributed in the hope that it will be useful,
00012    but WITHOUT ANY WARRANTY; without even the implied warranty of
00013    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
00014    Lesser General Public License for more details.
00015 
00016    You should have received a copy of the GNU Lesser General Public
00017    License along with the GNU C Library; if not, write to the Free
00018    Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
00019    02111-1307 USA.  */
00020 
00021 #include <unistd.h>
00022 #include <stdlib.h>
00023 
00024 /* The function `_exit' should take a status argument and simply
00025    terminate program execution, using the low-order 8 bits of the
00026    given integer as status.  */
00027 
00028 /* This returns control to Nindy.  */
00029 /* XXX where is __NORETURN ? */
00030 __NORETURN void
00031 _exit (status)
00032      int status;
00033 {
00034   /* status is ignored */
00035 
00036   asm volatile( "mov   0,g0; \
00037                  fmark ; \
00038            syncf ; \
00039            .word    0xfeedface ; \
00040                  bx       start" : : );
00041  /*  The constant 0xfeedface is a magic word for break which
00042   *  is defined by NINDY.  The branch extended restarts the
00043   *  application if the user types "go".
00044   */
00045 }
00046 weak_alias (_exit, _Exit)
00047 
00048 
00049 #ifdef  HAVE_GNU_LD
00050 
00051 #include <gnu-stabs.h>
00052 
00053 stub_warning(_exit);
00054 
00055 #endif /* GNU stabs.  */