1 files changed, 35 insertions, 0 deletions
diff --git a/libc/sysdeps/linux/arm/iopl.c b/libc/sysdeps/linux/arm/iopl.c
new file mode 100644
index 000000000..0cd306d42
--- /dev/null
+++ b/libc/sysdeps/linux/arm/iopl.c
@@ -0,0 +1,35 @@
+/* Copyright (C) 1998, 1999 Free Software Foundation, Inc.
+   This file is part of the GNU C Library.
+   Contributed by Phil Blundell, based on the Alpha version by
+   David Mosberger.
+
+   The GNU C Library is free software; you can redistribute it and/or
+   modify it under the terms of the GNU Lesser General Public
+   License as published by the Free Software Foundation; either
+   version 2.1 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
+   Lesser General Public License for more details.
+
+   You should have received a copy of the GNU Lesser General Public
+   License along with the GNU C Library; if not, write to the Free
+   Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
+   02111-1307 USA.  */
+
+#include <sys/io.h>
+#include <errno.h>
+
+#define MAX_PORT	0x10000
+
+int iopl(int level) 
+{
+	if (level > 3) {
+		__set_errno(EINVAL);
+		return -1;
+	}
+	if (level)
+		return ioperm(0, MAX_PORT, 1);
+	return 0;
+}