1 files changed, 94 insertions, 0 deletions
diff --git a/sysdeps/s390/s390-64/multiarch/memcpy-s390x.S b/sysdeps/s390/s390-64/multiarch/memcpy-s390x.S
new file mode 100644
index 0000000000..4b0e6cb917
--- /dev/null
+++ b/sysdeps/s390/s390-64/multiarch/memcpy-s390x.S
@@ -0,0 +1,94 @@
+/* CPU specific memcpy implementations.  64 bit S/390 version.
+   Copyright (C) 2012-2015 Free Software Foundation, Inc.
+   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 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, see
+   <http://www.gnu.org/licenses/>.  */
+
+
+#include "sysdep.h"
+#include "asm-syntax.h"
+
+/* INPUT PARAMETERS
+     %r2 = target operands address
+     %r3 = source operands address
+     %r4 = number of bytes to copy.  */
+
+       .text
+
+#if defined SHARED && IS_IN (libc)
+
+ENTRY(__memcpy_z196)
+	.machine "z196"
+	ltgr    %r4,%r4
+	je      .L_Z196_4
+	aghi    %r4,-1
+	lgr     %r1,%r2
+	srlg    %r5,%r4,8
+	ltgr    %r5,%r5
+	jne     .L_Z196_5
+.L_Z196_3:
+	exrl    %r4,.L_Z196_14
+.L_Z196_4:
+	br      %r14
+.L_Z196_5:
+	cgfi    %r5,262144      # Switch to mvcle for copies >64MB
+	jh      __memcpy_mvcle
+.L_Z196_2:
+	pfd     1,768(%r3)
+	pfd     2,768(%r1)
+	mvc     0(256,%r1),0(%r3)
+	aghi    %r5,-1
+	la      %r1,256(%r1)
+	la      %r3,256(%r3)
+	jne     .L_Z196_2
+	j       .L_Z196_3
+.L_Z196_14:
+	mvc     0(1,%r1),0(%r3)
+END(__memcpy_z196)
+
+ENTRY(__memcpy_z10)
+	.machine "z10"
+	cgije   %r4,0,.L_Z10_4
+	aghi    %r4,-1
+	lgr     %r1,%r2
+	srlg    %r5,%r4,8
+	cgijlh  %r5,0,.L_Z10_13
+.L_Z10_3:
+	exrl    %r4,.L_Z10_15
+.L_Z10_4:
+	br      %r14
+.L_Z10_13:
+	cgfi    %r5,65535	# Switch to mvcle for copies >16MB
+	jh      __memcpy_mvcle
+.L_Z10_12:
+	pfd     1,768(%r3)
+	pfd     2,768(%r1)
+	mvc     0(256,%r1),0(%r3)
+	la      %r1,256(%r1)
+	la      %r3,256(%r3)
+	brctg   %r5,.L_Z10_12
+	j       .L_Z10_3
+.L_Z10_15:
+	mvc     0(1,%r1),0(%r3)
+END(__memcpy_z10)
+
+#endif /* SHARED && IS_IN (libc) */
+
+#include "../memcpy.S"
+
+#if !defined SHARED || !IS_IN (libc)
+.globl   memcpy
+.set     memcpy,__memcpy_default
+#endif