make fabs use asm, and license repair

1 files changed, 32 insertions, 6 deletions

diff --git a/lib/libc/arch/powerpc/gen/fabs.c b/lib/libc/arch/powerpc/gen/fabs.c
index e9e8510399d..e34dfdf7b2b 100644
--- a/lib/libc/arch/powerpc/gen/fabs.c
+++ b/lib/libc/arch/powerpc/gen/fabs.c
@@ -1,9 +1,35 @@
+/*	$OpenBSD: fabs.c,v 1.2 2002/06/17 19:15:46 deraadt Exp $	*/
+
+/*
+ * Copyright (c) 2002 Theo de Raadt
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
+ * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
+ * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
+ * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
+ * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
+ * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+ * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+ * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
+ * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ */
+
+#include <math.h>
+
 double
-fabs(double val)
+fabs(double x)
 {
-	if (val > 0) {
-		return val;
-	} else {
-		return -val;
-	}
+	__asm__ __volatile("fabs %0,%1" : "=f"(x) : "f"(x));
+	return (x);
 }