1 files changed, 43 insertions, 0 deletions
diff --git a/sysdeps/s390/bzero.S b/sysdeps/s390/bzero.S
new file mode 100644
index 0000000000..4d0db82fa0
--- /dev/null
+++ b/sysdeps/s390/bzero.S
@@ -0,0 +1,43 @@
+/* bzero -- set a block of memory to zero.  IBM S390 version
+   This file is part of the GNU C Library.
+   Copyright (C) 2000 Free Software Foundation, Inc.
+   Contributed by Martin Schwidefsky (schwidefsky@de.ibm.com).
+
+   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., 59 Temple Place - Suite 330,
+   Boston, MA 02111-1307, USA.  */
+
+/*
+ * R2 = address to memory area
+ * R3 = number of bytes to fill
+ */
+
+#include "sysdep.h"
+#include "asm-syntax.h"
+
+	.text
+ENTRY(__bzero)
+	ltr     %r3,%r3
+	jz      .L1
+	sr      %r1,%r1             # set pad byte to zero
+	sr      %r4,%r4             # no source for MVCLE, only a pad byte
+	sr      %r5,%r5
+.L0:    mvcle   %r2,%r4,0(%r1)      # thats it, MVCLE is your friend
+	jo      .L0
+.L1:    br      %r14
+END(__bzero)
+
+#ifndef NO_WEAK_ALIAS
+weak_alias (__bzero, bzero)
+#endif