initial import

1 files changed, 49 insertions, 0 deletions

diff --git a/sysdeps/standalone/m68k/m68020/mvme136/_exit.c b/sysdeps/standalone/m68k/m68020/mvme136/_exit.c
new file mode 100644
index 0000000000..d13b4d9770
--- /dev/null
+++ b/sysdeps/standalone/m68k/m68020/mvme136/_exit.c
@@ -0,0 +1,49 @@
+/* Copyright (C) 1994 Free Software Foundation, Inc.
+   Contributed by Joel Sherrill (jsherril@redstone-emh2.army.mil),
+     On-Line Applications Research Corporation.
+
+This file is part of the GNU C Library.
+
+The GNU C Library is free software; you can redistribute it and/or
+modify it under the terms of the GNU Library General Public License as
+published by the Free Software Foundation; either version 2 of the
+License, or (at your option) any later version.
+
+The GNU C Library is distributed in the hope that it will be useful,
+but WITHOUT ANY WARRANTY; without even the implied warranty of
+MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+Library General Public License for more details.
+
+You should have received a copy of the GNU Library General Public
+License along with the GNU C Library; see the file COPYING.LIB.  If
+not, write to the Free Software Foundation, Inc., 675 Mass Ave,
+Cambridge, MA 02139, USA.  */
+
+#include <ansidecl.h>
+#include <unistd.h>
+#include <stdlib.h>
+#include "m68020.h"
+
+/* Return control to 135Bug */
+
+void 
+DEFUN_VOID(__exit_trap)
+{
+  set_vbr( 0 );                     /* restore 135Bug vectors */
+  asm volatile( "trap   #15"  );    /* trap to 135Bug */
+  asm volatile( ".short 0x63" );    /* return to 135Bug (.RETURN) */
+  asm volatile( "jmp    main" );    /* restart program */
+}
+
+/* The function `_exit' should take a status argument and simply
+   terminate program execution, using the low-order 8 bits of the
+   given integer as status.  */
+
+__NORETURN void
+DEFUN(_exit, (status), int status)
+{
+  /* status is ignored */
+
+  M68Kvec[ 45 ] = __exit_trap;   /* install exit_trap handler */
+  asm volatile( "trap #13" );  /* insures SUPV mode */
+}