File 0005-S390-Refactor-ifunc-implementations-and-en... of Package glibc

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File 0005-S390-Refactor-ifunc-implementations-and-enable-ifunc.patch of Package glibc (Revision bb8b7d5bc7e32dafeb34eaff2692e661)

Currently displaying revision bb8b7d5bc7e32dafeb34eaff2692e661 , Show latest

2015-08-26  Stefan Liebler  <stli@linux.vnet.ibm.com>

* sysdeps/s390/s390-32/multiarch/Makefile (sysdep_routines):
	Remove ifunc-resolve, add memset-s390, memcpy-s390, memcmp-s390.
	* sysdeps/s390/s390-32/multiarch/ifunc-resolve.c: Delete File.
	* sysdeps/s390/s390-32/multiarch/memcmp.S: Move to ...
	* sysdeps/s390/s390-32/multiarch/memcmp-s390.S: ... here.
	(memcmp, bcmp): Use __memcmp_default as alias source.
	* sysdeps/s390/s390-32/multiarch/memcmp.c: New File.
	* sysdeps/s390/s390-32/memcmp.S (__memcmp_g5):
	Rename to __memcmp_default.
	* sysdeps/s390/s390-32/multiarch/memcpy.S: Move to ...
	* sysdeps/s390/s390-32/multiarch/memcpy-s390.S: ... here.
	(memcpy): Use __memcpy_default as alias source.
	* sysdeps/s390/s390-32/multiarch/memcpy.c: New File.
	* sysdeps/s390/s390-32/memcpy.S (__memcpy_g5):
	Rename to __memcpy_default.
	* sysdeps/s390/s390-32/multiarch/memset.S: Move to ...
	* sysdeps/s390/s390-32/multiarch/memset-s390.S: ... here.
	(memset): Use __memset_default as alias source.
	* sysdeps/s390/s390-32/multiarch/memset.c: New File.
	* sysdeps/s390/s390-32/memset.S (__memset_g5):
	Rename to __memset_default.
	* sysdeps/s390/s390-64/multiarch/Makefile (sysdep_routines):
	Remove ifunc-resolve, add memset-s390x, memcpy-s390x, memcmp-s390x.
	* sysdeps/s390/s390-64/multiarch/ifunc-resolve.c: Delete File.
	* sysdeps/s390/s390-64/multiarch/memcmp.S: Move to ...
	* sysdeps/s390/s390-64/multiarch/memcmp-s390x.S: ... here.
	(memcmp, bcmp): Use __memcmp_default as alias source.
	* sysdeps/s390/s390-64/multiarch/memcmp.c: New File.
	* sysdeps/s390/s390-64/memcmp.S (__memcmp_z900):
	Rename to __memcmp_default.
	* sysdeps/s390/s390-64/multiarch/memcpy.S: Move to ...
	* sysdeps/s390/s390-64/multiarch/memcpy-s390x.S: ... here.
	(memcpy): Use __memcpy_default as alias source.
	* sysdeps/s390/s390-64/multiarch/memcpy.c: New File.
	* sysdeps/s390/s390-64/memcpy.S (__memcpy_z900):
	Rename to __memcpy_default.
	* sysdeps/s390/s390-64/multiarch/memset.S: Move to ...
	* sysdeps/s390/s390-64/multiarch/memset-s390x.S: ... here.
	(memset): Use __memset_default as alias source.
	* sysdeps/s390/s390-64/multiarch/memset.c: New File.
	* sysdeps/s390/s390-64/memset.S (__memset_z900):
	Rename to __memset_default.
	* sysdeps/s390/multiarch/ifunc-resolve.h: New File.
	* sysdeps/s390/multiarch/ifunc-impl-list.c: New File.

Index: glibc-2.22/sysdeps/s390/multiarch/ifunc-impl-list.c
===================================================================
--- /dev/null
+++ glibc-2.22/sysdeps/s390/multiarch/ifunc-impl-list.c
@@ -0,0 +1,74 @@
+/* Enumerate available IFUNC implementations of a function. s390/s390x version.
+   Copyright (C) 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 <assert.h>
+#include <string.h>
+#include <ifunc-impl-list.h>
+#include <ifunc-resolve.h>
+
+/* Maximum number of IFUNC implementations.  */
+#define MAX_IFUNC	3
+
+/* Fill ARRAY of MAX elements with IFUNC implementations for function
+   NAME supported on target machine and return the number of valid
+   entries.  */
+size_t
+__libc_ifunc_impl_list (const char *name, struct libc_ifunc_impl *array,
+			size_t max)
+{
+  assert (max >= MAX_IFUNC);
+
+  size_t i = 0;
+
+  /* Get hardware information.  */
+  unsigned long int dl_hwcap = GLRO (dl_hwcap);
+  unsigned long long stfle_bits = 0ULL;
+  if ((dl_hwcap & HWCAP_S390_STFLE)
+	&& (dl_hwcap & HWCAP_S390_ZARCH)
+	&& (dl_hwcap & HWCAP_S390_HIGH_GPRS))
+    {
+      S390_STORE_STFLE (stfle_bits);
+    }
+
+  IFUNC_IMPL (i, name, memset,
+	      IFUNC_IMPL_ADD (array, i, memset,
+			      S390_IS_Z196 (stfle_bits), __memset_z196)
+	      IFUNC_IMPL_ADD (array, i, memset,
+			      S390_IS_Z10 (stfle_bits), __memset_z10)
+	      IFUNC_IMPL_ADD (array, i, memset, 1, __memset_default))
+
+  IFUNC_IMPL (i, name, memcmp,
+	      IFUNC_IMPL_ADD (array, i, memcmp,
+			      S390_IS_Z196 (stfle_bits), __memcmp_z196)
+	      IFUNC_IMPL_ADD (array, i, memcmp,
+			      S390_IS_Z10 (stfle_bits), __memcmp_z10)
+	      IFUNC_IMPL_ADD (array, i, memcmp, 1, __memcmp_default))
+
+#ifdef SHARED
+
+  IFUNC_IMPL (i, name, memcpy,
+	      IFUNC_IMPL_ADD (array, i, memcpy,
+			      S390_IS_Z196 (stfle_bits), __memcpy_z196)
+	      IFUNC_IMPL_ADD (array, i, memcpy,
+			      S390_IS_Z10 (stfle_bits), __memcpy_z10)
+	      IFUNC_IMPL_ADD (array, i, memcpy, 1, __memcpy_default))
+
+#endif /* SHARED */
+
+  return i;
+}
Index: glibc-2.22/sysdeps/s390/multiarch/ifunc-resolve.h
===================================================================
--- /dev/null
+++ glibc-2.22/sysdeps/s390/multiarch/ifunc-resolve.h
@@ -0,0 +1,75 @@
+/* IFUNC resolver function for CPU specific functions.
+   32/64 bit S/390 version.
+   Copyright (C) 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 <unistd.h>
+#include <dl-procinfo.h>
+
+#define S390_STFLE_BITS_Z10  34 /* General instructions extension */
+#define S390_STFLE_BITS_Z196 45 /* Distinct operands, pop ... */
+
+#define S390_IS_Z196(STFLE_BITS)			\
+  ((STFLE_BITS & (1ULL << (63 - S390_STFLE_BITS_Z196))) != 0)
+
+#define S390_IS_Z10(STFLE_BITS)				\
+  ((STFLE_BITS & (1ULL << (63 - S390_STFLE_BITS_Z10))) != 0)
+
+#define S390_STORE_STFLE(STFLE_BITS)					\
+  /* We want just 1 double word to be returned.  */			\
+  register unsigned long reg0 asm("0") = 0;				\
+									\
+  asm volatile(".machine push"        "\n\t"				\
+	       ".machine \"z9-109\""  "\n\t"				\
+	       ".machinemode \"zarch_nohighgprs\"\n\t"			\
+	       "stfle %0"             "\n\t"				\
+	       ".machine pop"         "\n"				\
+	       : "=QS" (STFLE_BITS), "+d" (reg0)			\
+	       : : "cc");
+
+#define s390_libc_ifunc(FUNC)						\
+  asm (".globl " #FUNC "\n\t"						\
+       ".type  " #FUNC ",@gnu_indirect_function\n\t"			\
+       ".set   " #FUNC ",__resolve_" #FUNC "\n\t"			\
+       ".globl __GI_" #FUNC "\n\t"					\
+       ".set   __GI_" #FUNC "," #FUNC "\n");				\
+									\
+  /* Make the declarations of the optimized functions hidden in order
+     to prevent GOT slots being generated for them. */			\
+  extern void *__##FUNC##_z196 attribute_hidden;			\
+  extern void *__##FUNC##_z10 attribute_hidden;				\
+  extern void *__##FUNC##_default attribute_hidden;			\
+									\
+  void *__resolve_##FUNC (unsigned long int dl_hwcap)			\
+  {									\
+    if ((dl_hwcap & HWCAP_S390_STFLE)					\
+	&& (dl_hwcap & HWCAP_S390_ZARCH)				\
+	&& (dl_hwcap & HWCAP_S390_HIGH_GPRS))				\
+      {									\
+	unsigned long long stfle_bits;					\
+	S390_STORE_STFLE (stfle_bits);					\
+									\
+	if (S390_IS_Z196 (stfle_bits))					\
+	  return &__##FUNC##_z196;					\
+	else if (S390_IS_Z10 (stfle_bits))				\
+	  return &__##FUNC##_z10;					\
+	else								\
+	  return &__##FUNC##_default;					\
+      }									\
+    else								\
+      return &__##FUNC##_default;					\
+  }
Index: glibc-2.22/sysdeps/s390/s390-32/memcmp.S
===================================================================
--- glibc-2.22.orig/sysdeps/s390/s390-32/memcmp.S
+++ glibc-2.22/sysdeps/s390/s390-32/memcmp.S
@@ -27,38 +27,38 @@
 
        .text
 #ifdef USE_MULTIARCH
-ENTRY(__memcmp_g5)
+ENTRY(__memcmp_default)
 #else
 ENTRY(memcmp)
 #endif
 	.machine "g5"
-        basr    %r5,0
+	basr    %r5,0
 .L_G5_16:
-        ltr     %r4,%r4
-        je      .L_G5_4
-        ahi     %r4,-1
-        lr      %r1,%r4
-        srl     %r1,8
-        ltr     %r1,%r1
-        jne     .L_G5_12
-        ex      %r4,.L_G5_17-.L_G5_16(%r5)
+	ltr     %r4,%r4
+	je      .L_G5_4
+	ahi     %r4,-1
+	lr      %r1,%r4
+	srl     %r1,8
+	ltr     %r1,%r1
+	jne     .L_G5_12
+	ex      %r4,.L_G5_17-.L_G5_16(%r5)
 .L_G5_4:
-        ipm     %r2
-        sll     %r2,2
-        sra     %r2,30
-        br      %r14
+	ipm     %r2
+	sll     %r2,2
+	sra     %r2,30
+	br      %r14
 .L_G5_12:
-        clc     0(256,%r3),0(%r2)
-        jne     .L_G5_4
-        la      %r3,256(%r3)
-        la      %r2,256(%r2)
-        brct    %r1,.L_G5_12
-        ex      %r4,.L_G5_17-.L_G5_16(%r5)
-        j       .L_G5_4
+	clc     0(256,%r3),0(%r2)
+	jne     .L_G5_4
+	la      %r3,256(%r3)
+	la      %r2,256(%r2)
+	brct    %r1,.L_G5_12
+	ex      %r4,.L_G5_17-.L_G5_16(%r5)
+	j       .L_G5_4
 .L_G5_17:
-        clc     0(1,%r3),0(%r2)
+	clc     0(1,%r3),0(%r2)
 #ifdef USE_MULTIARCH
-END(__memcmp_g5)
+END(__memcmp_default)
 #else
 END(memcmp)
 libc_hidden_builtin_def (memcmp)
Index: glibc-2.22/sysdeps/s390/s390-32/memcpy.S
===================================================================
--- glibc-2.22.orig/sysdeps/s390/s390-32/memcpy.S
+++ glibc-2.22/sysdeps/s390/s390-32/memcpy.S
@@ -26,41 +26,41 @@
      %r4 = number of bytes to copy.  */
 
 #ifdef USE_MULTIARCH
-ENTRY(__memcpy_g5)
+ENTRY(__memcpy_default)
 #else
 ENTRY(memcpy)
 #endif
 	.machine "g5"
-        st      %r13,52(%r15)
-        .cfi_offset 13, -44
-        basr    %r13,0
+	st      %r13,52(%r15)
+	.cfi_offset 13, -44
+	basr    %r13,0
 .L_G5_16:
-        ltr     %r4,%r4
-        je      .L_G5_4
-        ahi     %r4,-1
-        lr      %r5,%r4
-        srl     %r5,8
-        ltr     %r5,%r5
-        lr      %r1,%r2
-        jne     .L_G5_12
-        ex      %r4,.L_G5_17-.L_G5_16(%r13)
+	ltr     %r4,%r4
+	je      .L_G5_4
+	ahi     %r4,-1
+	lr      %r5,%r4
+	srl     %r5,8
+	ltr     %r5,%r5
+	lr      %r1,%r2
+	jne     .L_G5_12
+	ex      %r4,.L_G5_17-.L_G5_16(%r13)
 .L_G5_4:
-        l       %r13,52(%r15)
-        br      %r14
+	l       %r13,52(%r15)
+	br      %r14
 .L_G5_13:
-        chi	%r5,4096             # Switch to mvcle for copies >1MB
-        jh	__memcpy_mvcle
+	chi	%r5,4096             # Switch to mvcle for copies >1MB
+	jh	__memcpy_mvcle
 .L_G5_12:
-        mvc     0(256,%r1),0(%r3)
-        la      %r1,256(%r1)
-        la      %r3,256(%r3)
-        brct    %r5,.L_G5_12
-        ex      %r4,.L_G5_17-.L_G5_16(%r13)
-        j       .L_G5_4
+	mvc     0(256,%r1),0(%r3)
+	la      %r1,256(%r1)
+	la      %r3,256(%r3)
+	brct    %r5,.L_G5_12
+	ex      %r4,.L_G5_17-.L_G5_16(%r13)
+	j       .L_G5_4
 .L_G5_17:
-        mvc     0(1,%r1),0(%r3)
+	mvc     0(1,%r1),0(%r3)
 #ifdef USE_MULTIARCH
-END(__memcpy_g5)
+END(__memcpy_default)
 #else
 END(memcpy)
 libc_hidden_builtin_def (memcpy)
Index: glibc-2.22/sysdeps/s390/s390-32/memset.S
===================================================================
--- glibc-2.22.orig/sysdeps/s390/s390-32/memset.S
+++ glibc-2.22/sysdeps/s390/s390-32/memset.S
@@ -28,37 +28,37 @@
        .text
 
 #ifdef USE_MULTIARCH
-ENTRY(__memset_g5)
+ENTRY(__memset_default)
 #else
 ENTRY(memset)
 #endif
 	.machine "g5"
-        basr    %r5,0
+	basr    %r5,0
 .L_G5_19:
-        ltr     %r4,%r4
-        je      .L_G5_4
-        stc     %r3,0(%r2)
-        chi     %r4,1
-        lr      %r1,%r2
-        je      .L_G5_4
-        ahi     %r4,-2
-        lr      %r3,%r4
-        srl     %r3,8
-        ltr     %r3,%r3
-        jne     .L_G5_14
-        ex      %r4,.L_G5_20-.L_G5_19(%r5)
+	ltr     %r4,%r4
+	je      .L_G5_4
+	stc     %r3,0(%r2)
+	chi     %r4,1
+	lr      %r1,%r2
+	je      .L_G5_4
+	ahi     %r4,-2
+	lr      %r3,%r4
+	srl     %r3,8
+	ltr     %r3,%r3
+	jne     .L_G5_14
+	ex      %r4,.L_G5_20-.L_G5_19(%r5)
 .L_G5_4:
-        br      %r14
+	br      %r14
 .L_G5_14:
-        mvc     1(256,%r1),0(%r1)
-        la      %r1,256(%r1)
-        brct    %r3,.L_G5_14
-        ex      %r4,.L_G5_20-.L_G5_19(%r5)
-        j       .L_G5_4
+	mvc     1(256,%r1),0(%r1)
+	la      %r1,256(%r1)
+	brct    %r3,.L_G5_14
+	ex      %r4,.L_G5_20-.L_G5_19(%r5)
+	j       .L_G5_4
 .L_G5_20:
-        mvc     1(1,%r1),0(%r1)
+	mvc     1(1,%r1),0(%r1)
 #ifdef USE_MULTIARCH
-END(__memset_g5)
+END(__memset_default)
 #else
 END(memset)
 libc_hidden_builtin_def (memset)
Index: glibc-2.22/sysdeps/s390/s390-32/multiarch/Makefile
===================================================================
--- glibc-2.22.orig/sysdeps/s390/s390-32/multiarch/Makefile
+++ glibc-2.22/sysdeps/s390/s390-32/multiarch/Makefile
@@ -1,3 +1,4 @@
 ifeq ($(subdir),string)
-sysdep_routines += ifunc-resolve memset memcpy memcmp
+sysdep_routines += memset memset-s390 memcpy memcpy-s390 \
+		   memcmp memcmp-s390
 endif
Index: glibc-2.22/sysdeps/s390/s390-32/multiarch/ifunc-resolve.c
===================================================================
--- glibc-2.22.orig/sysdeps/s390/s390-32/multiarch/ifunc-resolve.c
+++ /dev/null
@@ -1,72 +0,0 @@
-/* IFUNC resolver function for CPU specific functions.
-   32 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 <unistd.h>
-#include <dl-procinfo.h>
-
-#define STFLE_BITS_Z10  34 /* General instructions extension */
-#define STFLE_BITS_Z196 45 /* Distinct operands, pop ... */
-
-#if IS_IN (libc)
-
-#define IFUNC_RESOLVE(FUNC)						\
-  asm (".globl " #FUNC "\n\t"						\
-       ".type  " #FUNC ",@gnu_indirect_function\n\t"			\
-       ".set   " #FUNC ",__resolve_" #FUNC "\n\t"			\
-       ".globl __GI_" #FUNC "\n\t"					\
-       ".set   __GI_" #FUNC "," #FUNC "\n");				\
-									\
-  /* Make the declarations of the optimized functions hidden in order
-     to prevent GOT slots being generated for them. */			\
-  extern void *__##FUNC##_z196 attribute_hidden;			\
-  extern void *__##FUNC##_z10 attribute_hidden;				\
-  extern void *__##FUNC##_g5 attribute_hidden;				\
-									\
-  void *__resolve_##FUNC (unsigned long int dl_hwcap)			\
-  {									\
-    if ((dl_hwcap & HWCAP_S390_STFLE)					\
-	&& (dl_hwcap & HWCAP_S390_ZARCH)				\
-	&& (dl_hwcap & HWCAP_S390_HIGH_GPRS))				\
-      {									\
-	/* We want just 1 double word to be returned.  */		\
-	register unsigned long reg0 asm("0") = 0;			\
-	unsigned long long stfle_bits;					\
-									\
-	asm volatile(".insn s,0xb2b00000,%0" "\n\t"  /* stfle */	\
-		     : "=QS" (stfle_bits), "+d" (reg0)			\
-		     : : "cc");						\
-									\
-	if ((stfle_bits & (1ULL << (63 - STFLE_BITS_Z196))) != 0)	\
-	  return &__##FUNC##_z196;					\
-	else if ((stfle_bits & (1ULL << (63 - STFLE_BITS_Z10))) != 0)	\
-	  return &__##FUNC##_z10;					\
-      }									\
-    return &__##FUNC##_g5;						\
-  }
-
-IFUNC_RESOLVE(memset)
-IFUNC_RESOLVE(memcmp)
-asm(".weak bcmp ; bcmp = memcmp");
-
-/* In the static lib memcpy is needed before the reloc is resolved.  */
-#ifdef SHARED
-IFUNC_RESOLVE(memcpy)
-#endif
-
-#endif
Index: glibc-2.22/sysdeps/s390/s390-32/multiarch/memcmp-s390.S
===================================================================
--- /dev/null
+++ glibc-2.22/sysdeps/s390/s390-32/multiarch/memcmp-s390.S
@@ -0,0 +1,104 @@
+/* CPU specific memcmp implementations.  32 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 = address of first memory area
+     %r3 = address of second memory area
+     %r4 = number of bytes to compare.  */
+
+       .text
+
+#if IS_IN (libc)
+
+ENTRY(__memcmp_z196)
+	.machine "z196"
+	.machinemode "zarch_nohighgprs"
+	ltr     %r4,%r4
+	je      .L_Z196_4
+	ahi     %r4,-1
+	srlk    %r1,%r4,8
+	ltr     %r1,%r1
+	jne     .L_Z196_2
+.L_Z196_3:
+	exrl    %r4,.L_Z196_14
+.L_Z196_4:
+	ipm     %r2
+	sll     %r2,2
+	sra     %r2,30
+	br      %r14
+.L_Z196_17:
+	la      %r3,256(%r3)
+	la      %r2,256(%r2)
+	ahi     %r1,-1
+	je      .L_Z196_3
+.L_Z196_2:
+	pfd     1,512(%r3)
+	pfd     1,512(%r2)
+	clc     0(256,%r3),0(%r2)
+	je      .L_Z196_17
+	ipm     %r2
+	sll     %r2,2
+	sra     %r2,30
+	br      %r14
+.L_Z196_14:
+	clc     0(1,%r3),0(%r2)
+END(__memcmp_z196)
+
+ENTRY(__memcmp_z10)
+	.machine "z10"
+	.machinemode "zarch_nohighgprs"
+	ltr     %r4,%r4
+	je      .L_Z10_4
+	ahi     %r4,-1
+	lr      %r1,%r4
+	srl     %r1,8
+	cijlh   %r1,0,.L_Z10_12
+.L_Z10_3:
+	exrl    %r4,.L_Z10_15
+.L_Z10_4:
+	ipm     %r2
+	sll     %r2,2
+	sra     %r2,30
+	br      %r14
+.L_Z10_12:
+	pfd     1,512(%r3)
+	pfd     1,512(%r2)
+	clc     0(256,%r3),0(%r2)
+	jne     .L_Z10_4
+	la      %r3,256(%r3)
+	la      %r2,256(%r2)
+	brct    %r1,.L_Z10_12
+	j       .L_Z10_3
+.L_Z10_15:
+	clc     0(1,%r3),0(%r2)
+END(__memcmp_z10)
+
+#endif /* IS_IN (libc) */
+
+#include "../memcmp.S"
+
+#if !IS_IN (libc)
+.globl   memcmp
+.set     memcmp,__memcmp_default
+.weak    bcmp
+.set	 bcmp,__memcmp_default
+#endif
Index: glibc-2.22/sysdeps/s390/s390-32/multiarch/memcmp.S
===================================================================
--- glibc-2.22.orig/sysdeps/s390/s390-32/multiarch/memcmp.S
+++ /dev/null
@@ -1,104 +0,0 @@
-/* CPU specific memcmp implementations.  32 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 = address of first memory area
-     %r3 = address of second memory area
-     %r4 = number of bytes to compare.  */
-
-       .text
-
-#if IS_IN (libc)
-
-ENTRY(__memcmp_z196)
-	.machine "z196"
-	.machinemode "zarch_nohighgprs"
-        ltr     %r4,%r4
-        je      .L_Z196_4
-        ahi     %r4,-1
-        srlk    %r1,%r4,8
-        ltr     %r1,%r1
-        jne     .L_Z196_2
-.L_Z196_3:
-        exrl    %r4,.L_Z196_14
-.L_Z196_4:
-        ipm     %r2
-        sll     %r2,2
-        sra     %r2,30
-        br      %r14
-.L_Z196_17:
-        la      %r3,256(%r3)
-        la      %r2,256(%r2)
-        ahi     %r1,-1
-        je      .L_Z196_3
-.L_Z196_2:
-        pfd     1,512(%r3)
-        pfd     1,512(%r2)
-        clc     0(256,%r3),0(%r2)
-        je      .L_Z196_17
-        ipm     %r2
-        sll     %r2,2
-        sra     %r2,30
-        br      %r14
-.L_Z196_14:
-        clc     0(1,%r3),0(%r2)
-END(__memcmp_z196)
-
-ENTRY(__memcmp_z10)
-	.machine "z10"
-	.machinemode "zarch_nohighgprs"
-        ltr     %r4,%r4
-        je      .L_Z10_4
-        ahi     %r4,-1
-        lr      %r1,%r4
-        srl     %r1,8
-        cijlh   %r1,0,.L_Z10_12
-.L_Z10_3:
-        exrl    %r4,.L_Z10_15
-.L_Z10_4:
-        ipm     %r2
-        sll     %r2,2
-        sra     %r2,30
-        br      %r14
-.L_Z10_12:
-        pfd     1,512(%r3)
-        pfd     1,512(%r2)
-        clc     0(256,%r3),0(%r2)
-        jne     .L_Z10_4
-        la      %r3,256(%r3)
-        la      %r2,256(%r2)
-        brct    %r1,.L_Z10_12
-        j       .L_Z10_3
-.L_Z10_15:
-        clc     0(1,%r3),0(%r2)
-END(__memcmp_z10)
-
-#endif
-
-#include "../memcmp.S"
-
-#if !IS_IN (libc)
-.globl   memcmp
-.set     memcmp,__memcmp_g5
-.weak    bcmp
-.set	 bcmp,__memcmp_g5
-#endif
Index: glibc-2.22/sysdeps/s390/s390-32/multiarch/memcmp.c
===================================================================
--- /dev/null
+++ glibc-2.22/sysdeps/s390/s390-32/multiarch/memcmp.c
@@ -0,0 +1,24 @@
+/* Multiple versions of memcmp.
+   Copyright (C) 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/>.  */
+
+#if IS_IN (libc)
+# include <ifunc-resolve.h>
+
+s390_libc_ifunc (memcmp)
+asm(".weak bcmp ; bcmp = memcmp");
+#endif
Index: glibc-2.22/sysdeps/s390/s390-32/multiarch/memcpy-s390.S
===================================================================
--- /dev/null
+++ glibc-2.22/sysdeps/s390/s390-32/multiarch/memcpy-s390.S
@@ -0,0 +1,98 @@
+/* CPU specific memcpy implementations.  32 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"
+	.machinemode "zarch_nohighgprs"
+	llgfr   %r4,%r4
+	ltgr    %r4,%r4
+	je      .L_Z196_4
+	aghi    %r4,-1
+	lr      %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"
+	.machinemode "zarch_nohighgprs"
+	llgfr   %r4,%r4
+	cgije   %r4,0,.L_Z10_4
+	aghi    %r4,-1
+	lr      %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
Index: glibc-2.22/sysdeps/s390/s390-32/multiarch/memcpy.S
===================================================================
--- glibc-2.22.orig/sysdeps/s390/s390-32/multiarch/memcpy.S
+++ /dev/null
@@ -1,98 +0,0 @@
-/* CPU specific memcpy implementations.  32 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"
-	.machinemode "zarch_nohighgprs"
-        llgfr   %r4,%r4
-        ltgr    %r4,%r4
-        je      .L_Z196_4
-        aghi    %r4,-1
-        lr      %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"
-	.machinemode "zarch_nohighgprs"
-        llgfr   %r4,%r4
-        cgije   %r4,0,.L_Z10_4
-        aghi    %r4,-1
-        lr      %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
-
-#include "../memcpy.S"
-
-#if !defined SHARED || !IS_IN (libc)
-.globl   memcpy
-.set     memcpy,__memcpy_g5
-#endif
Index: glibc-2.22/sysdeps/s390/s390-32/multiarch/memcpy.c
===================================================================
--- /dev/null
+++ glibc-2.22/sysdeps/s390/s390-32/multiarch/memcpy.c
@@ -0,0 +1,24 @@
+/* Multiple versions of memcpy.
+   Copyright (C) 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/>.  */
+
+/* In the static lib memcpy is needed before the reloc is resolved.  */
+#if defined SHARED && IS_IN (libc)
+# include <ifunc-resolve.h>
+
+s390_libc_ifunc (memcpy)
+#endif
Index: glibc-2.22/sysdeps/s390/s390-32/multiarch/memset-s390.S
===================================================================
--- /dev/null
+++ glibc-2.22/sysdeps/s390/s390-32/multiarch/memset-s390.S
@@ -0,0 +1,113 @@
+/* Set a block of memory to some byte value.  32 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 = address of memory area
+     %r3 = byte to fill memory with
+     %r4 = number of bytes to fill.  */
+
+       .text
+
+#if IS_IN (libc)
+
+ENTRY(__memset_z196)
+	.machine "z196"
+	.machinemode "zarch_nohighgprs"
+	llgfr   %r4,%r4
+	ltgr    %r4,%r4
+	je      .L_Z196_4
+	stc     %r3,0(%r2)
+	lr      %r1,%r2
+	cghi    %r4,1
+	je      .L_Z196_4
+	aghi    %r4,-2
+	srlg    %r5,%r4,8
+	ltgr    %r5,%r5
+	jne     .L_Z196_1
+.L_Z196_3:
+	exrl    %r4,.L_Z196_17
+.L_Z196_4:
+	br      %r14
+.L_Z196_1:
+	cgfi	%r5,1048576
+	jh	__memset_mvcle	   # Switch to mvcle for >256MB
+.L_Z196_2:
+	pfd     2,1024(%r1)
+	mvc     1(256,%r1),0(%r1)
+	aghi    %r5,-1
+	la      %r1,256(%r1)
+	jne     .L_Z196_2
+	j       .L_Z196_3
+.L_Z196_17:
+	mvc     1(1,%r1),0(%r1)
+END(__memset_z196)
+
+ENTRY(__memset_z10)
+	.machine "z10"
+	.machinemode "zarch_nohighgprs"
+	llgfr   %r4,%r4
+	cgije   %r4,0,.L_Z10_4
+	stc     %r3,0(%r2)
+	lr      %r1,%r2
+	cgije   %r4,1,.L_Z10_4
+	aghi    %r4,-2
+	srlg    %r5,%r4,8
+	cgijlh  %r5,0,.L_Z10_15
+.L_Z10_3:
+	exrl    %r4,.L_Z10_18
+.L_Z10_4:
+	br      %r14
+.L_Z10_15:
+	cgfi	%r5,163840          # Switch to mvcle for >40MB
+	jh	__memset_mvcle
+.L_Z10_14:
+	pfd     2,1024(%r1)
+	mvc     1(256,%r1),0(%r1)
+	la      %r1,256(%r1)
+	brctg   %r5,.L_Z10_14
+	j       .L_Z10_3
+.L_Z10_18:
+	mvc     1(1,%r1),0(%r1)
+END(__memset_z10)
+
+ENTRY(__memset_mvcle)
+	ahi	%r4,2               # take back the change done by the caller
+	lr      %r0,%r2             # save source address
+	lr      %r1,%r3             # move pad byte to R1
+	lr      %r3,%r4
+	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
+	lr      %r2,%r0             # return value is source address
+.L1:
+	br      %r14
+END(__memset_mvcle)
+
+#endif /* IS_IN (libc) */
+
+#include "../memset.S"
+
+#if !IS_IN (libc)
+.globl   memset
+.set     memset,__memset_default
+#endif
Index: glibc-2.22/sysdeps/s390/s390-32/multiarch/memset.S
===================================================================
--- glibc-2.22.orig/sysdeps/s390/s390-32/multiarch/memset.S
+++ /dev/null
@@ -1,113 +0,0 @@
-/* Set a block of memory to some byte value.  32 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 = address of memory area
-     %r3 = byte to fill memory with
-     %r4 = number of bytes to fill.  */
-
-       .text
-
-#if IS_IN (libc)
-
-ENTRY(__memset_z196)
-	.machine "z196"
-	.machinemode "zarch_nohighgprs"
-        llgfr   %r4,%r4
-        ltgr    %r4,%r4
-        je      .L_Z196_4
-        stc     %r3,0(%r2)
-        lr      %r1,%r2
-        cghi    %r4,1
-        je      .L_Z196_4
-        aghi    %r4,-2
-        srlg    %r5,%r4,8
-        ltgr    %r5,%r5
-        jne     .L_Z196_1
-.L_Z196_3:
-        exrl    %r4,.L_Z196_17
-.L_Z196_4:
-        br      %r14
-.L_Z196_1:
-	cgfi	%r5,1048576
-	jh	__memset_mvcle	   # Switch to mvcle for >256MB
-.L_Z196_2:
-        pfd     2,1024(%r1)
-        mvc     1(256,%r1),0(%r1)
-        aghi    %r5,-1
-        la      %r1,256(%r1)
-        jne     .L_Z196_2
-        j       .L_Z196_3
-.L_Z196_17:
-        mvc     1(1,%r1),0(%r1)
-END(__memset_z196)
-
-ENTRY(__memset_z10)
-	.machine "z10"
-	.machinemode "zarch_nohighgprs"
-        llgfr   %r4,%r4
-        cgije   %r4,0,.L_Z10_4
-        stc     %r3,0(%r2)
-        lr      %r1,%r2
-        cgije   %r4,1,.L_Z10_4
-        aghi    %r4,-2
-        srlg    %r5,%r4,8
-        cgijlh  %r5,0,.L_Z10_15
-.L_Z10_3:
-        exrl    %r4,.L_Z10_18
-.L_Z10_4:
-        br      %r14
-.L_Z10_15:
-	cgfi	%r5,163840          # Switch to mvcle for >40MB
-	jh	__memset_mvcle
-.L_Z10_14:
-        pfd     2,1024(%r1)
-        mvc     1(256,%r1),0(%r1)
-        la      %r1,256(%r1)
-        brctg   %r5,.L_Z10_14
-        j       .L_Z10_3
-.L_Z10_18:
-        mvc     1(1,%r1),0(%r1)
-END(__memset_z10)
-
-ENTRY(__memset_mvcle)
-	ahi	%r4,2               # take back the change done by the caller
-	lr      %r0,%r2             # save source address
-	lr      %r1,%r3             # move pad byte to R1
-	lr      %r3,%r4
-	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
-	lr      %r2,%r0             # return value is source address
-.L1:
-	br      %r14
-END(__memset_mvcle)
-
-#endif
-
-#include "../memset.S"
-
-#if !IS_IN (libc)
-.globl   memset
-.set     memset,__memset_g5
-#endif
Index: glibc-2.22/sysdeps/s390/s390-32/multiarch/memset.c
===================================================================
--- /dev/null
+++ glibc-2.22/sysdeps/s390/s390-32/multiarch/memset.c
@@ -0,0 +1,23 @@
+/* Multiple versions of memset.
+   Copyright (C) 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/>.  */
+
+#if IS_IN (libc)
+# include <ifunc-resolve.h>
+
+s390_libc_ifunc (memset)
+#endif
Index: glibc-2.22/sysdeps/s390/s390-64/memcmp.S
===================================================================
--- glibc-2.22.orig/sysdeps/s390/s390-64/memcmp.S
+++ glibc-2.22/sysdeps/s390/s390-64/memcmp.S
@@ -27,36 +27,36 @@
 
        .text
 #ifdef USE_MULTIARCH
-ENTRY(__memcmp_z900)
+ENTRY(__memcmp_default)
 #else
 ENTRY(memcmp)
 #endif
 	.machine "z900"
-        ltgr    %r4,%r4
-        je      .L_Z900_4
-        aghi    %r4,-1
-        srlg    %r1,%r4,8
-        ltgr    %r1,%r1
-        jne     .L_Z900_12
+	ltgr    %r4,%r4
+	je      .L_Z900_4
+	aghi    %r4,-1
+	srlg    %r1,%r4,8
+	ltgr    %r1,%r1
+	jne     .L_Z900_12
 .L_Z900_3:
-        larl    %r1,.L_Z900_15
-        ex      %r4,0(%r1)
+	larl    %r1,.L_Z900_15
+	ex      %r4,0(%r1)
 .L_Z900_4:
-        ipm     %r2
-        sllg    %r2,%r2,34
-        srag    %r2,%r2,62
-        br      %r14
+	ipm     %r2
+	sllg    %r2,%r2,34
+	srag    %r2,%r2,62
+	br      %r14
 .L_Z900_12:
-        clc     0(256,%r3),0(%r2)
-        jne     .L_Z900_4
-        la      %r3,256(%r3)
-        la      %r2,256(%r2)
-        brctg   %r1,.L_Z900_12
-        j       .L_Z900_3
+	clc     0(256,%r3),0(%r2)
+	jne     .L_Z900_4
+	la      %r3,256(%r3)
+	la      %r2,256(%r2)
+	brctg   %r1,.L_Z900_12
+	j       .L_Z900_3
 .L_Z900_15:
-        clc     0(1,%r3),0(%r2)
+	clc     0(1,%r3),0(%r2)
 #ifdef USE_MULTIARCH
-END(__memcmp_z900)
+END(__memcmp_default)
 #else
 END(memcmp)
 libc_hidden_builtin_def (memcmp)
Index: glibc-2.22/sysdeps/s390/s390-64/memcpy.S
===================================================================
--- glibc-2.22.orig/sysdeps/s390/s390-64/memcpy.S
+++ glibc-2.22/sysdeps/s390/s390-64/memcpy.S
@@ -29,37 +29,37 @@
        .text
 
 #ifdef USE_MULTIARCH
-ENTRY(__memcpy_z900)
+ENTRY(__memcpy_default)
 #else
 ENTRY(memcpy)
 #endif
 	.machine "z900"
-        ltgr    %r4,%r4
-        je      .L_Z900_4
-        aghi    %r4,-1
-        srlg    %r5,%r4,8
-        ltgr    %r5,%r5
-        lgr     %r1,%r2
-        jne     .L_Z900_13
+	ltgr    %r4,%r4
+	je      .L_Z900_4
+	aghi    %r4,-1
+	srlg    %r5,%r4,8
+	ltgr    %r5,%r5
+	lgr     %r1,%r2
+	jne     .L_Z900_13
 .L_Z900_3:
-        larl    %r5,.L_Z900_15
-        ex      %r4,0(%r5)
+	larl    %r5,.L_Z900_15
+	ex      %r4,0(%r5)
 .L_Z900_4:
-        br      %r14
+	br      %r14
 .L_Z900_13:
-        chi	%r5,4096             # Switch to mvcle for copies >1MB
-        jh      __memcpy_mvcle
+	chi	%r5,4096             # Switch to mvcle for copies >1MB
+	jh      __memcpy_mvcle
 .L_Z900_12:
-        mvc     0(256,%r1),0(%r3)
-        la      %r1,256(%r1)
-        la      %r3,256(%r3)
-        brctg   %r5,.L_Z900_12
-        j       .L_Z900_3
+	mvc     0(256,%r1),0(%r3)
+	la      %r1,256(%r1)
+	la      %r3,256(%r3)
+	brctg   %r5,.L_Z900_12
+	j       .L_Z900_3
 .L_Z900_15:
-        mvc     0(1,%r1),0(%r3)
+	mvc     0(1,%r1),0(%r3)
 
 #ifdef USE_MULTIARCH
-END(__memcpy_z900)
+END(__memcpy_default)
 #else
 END(memcpy)
 libc_hidden_builtin_def (memcpy)
Index: glibc-2.22/sysdeps/s390/s390-64/memset.S
===================================================================
--- glibc-2.22.orig/sysdeps/s390/s390-64/memset.S
+++ glibc-2.22/sysdeps/s390/s390-64/memset.S
@@ -29,35 +29,35 @@
        .text
 
 #ifdef USE_MULTIARCH
-ENTRY(__memset_z900)
+ENTRY(__memset_default)
 #else
 ENTRY(memset)
 #endif
 	.machine "z900"
-        ltgr    %r4,%r4
-        je      .L_Z900_4
-        stc     %r3,0(%r2)
-        cghi    %r4,1
-        lgr     %r1,%r2
-        je      .L_Z900_4
-        aghi    %r4,-2
-        srlg    %r3,%r4,8
-        ltgr    %r3,%r3
-        jne     .L_Z900_14
+	ltgr    %r4,%r4
+	je      .L_Z900_4
+	stc     %r3,0(%r2)
+	cghi    %r4,1
+	lgr     %r1,%r2
+	je      .L_Z900_4
+	aghi    %r4,-2
+	srlg    %r3,%r4,8
+	ltgr    %r3,%r3
+	jne     .L_Z900_14
 .L_Z900_3:
-        larl    %r3,.L_Z900_18
-        ex      %r4,0(%r3)
+	larl    %r3,.L_Z900_18
+	ex      %r4,0(%r3)
 .L_Z900_4:
-        br      %r14
+	br      %r14
 .L_Z900_14:
-        mvc     1(256,%r1),0(%r1)
-        la      %r1,256(%r1)
-        brctg   %r3,.L_Z900_14
-        j       .L_Z900_3
+	mvc     1(256,%r1),0(%r1)
+	la      %r1,256(%r1)
+	brctg   %r3,.L_Z900_14
+	j       .L_Z900_3
 .L_Z900_18:
-        mvc     1(1,%r1),0(%r1)
+	mvc     1(1,%r1),0(%r1)
 #ifdef USE_MULTIARCH
-END(__memset_z900)
+END(__memset_default)
 #else
 END(memset)
 libc_hidden_builtin_def (memset)
Index: glibc-2.22/sysdeps/s390/s390-64/multiarch/Makefile
===================================================================
--- glibc-2.22.orig/sysdeps/s390/s390-64/multiarch/Makefile
+++ glibc-2.22/sysdeps/s390/s390-64/multiarch/Makefile
@@ -1,3 +1,4 @@
 ifeq ($(subdir),string)
-sysdep_routines += ifunc-resolve memset memcpy memcmp
+sysdep_routines += memset memset-s390x memcpy memcpy-s390x \
+		   memcmp memcmp-s390x
 endif
Index: glibc-2.22/sysdeps/s390/s390-64/multiarch/ifunc-resolve.c
===================================================================
--- glibc-2.22.orig/sysdeps/s390/s390-64/multiarch/ifunc-resolve.c
+++ /dev/null
@@ -1,76 +0,0 @@
-/* IFUNC resolver function for CPU specific functions.
-   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 <unistd.h>
-#include <dl-procinfo.h>
-
-#define STFLE_BITS_Z10  34 /* General instructions extension */
-#define STFLE_BITS_Z196 45 /* Distinct operands, pop ... */
-
-#if IS_IN (libc)
-
-#define IFUNC_RESOLVE(FUNC)						\
-  asm (".globl " #FUNC "\n\t"						\
-       ".type  " #FUNC ",@gnu_indirect_function\n\t"			\
-       ".set   " #FUNC ",__resolve_" #FUNC "\n\t"			\
-       ".globl __GI_" #FUNC "\n\t"					\
-       ".set   __GI_" #FUNC "," #FUNC "\n");				\
-									\
-  /* Make the declarations of the optimized functions hidden in order
-     to prevent GOT slots being generated for them. */			\
-  extern void *__##FUNC##_z196 attribute_hidden;			\
-  extern void *__##FUNC##_z10 attribute_hidden;				\
-  extern void *__##FUNC##_z900 attribute_hidden;			\
-									\
-  void *__resolve_##FUNC (unsigned long int dl_hwcap)			\
-  {									\
-    if (dl_hwcap & HWCAP_S390_STFLE)					\
-      {									\
-	/* We want just 1 double word to be returned.  */		\
-	register unsigned long reg0 asm("0") = 0;			\
-	unsigned long stfle_bits;					\
-									\
-	asm volatile(".machine push"        "\n\t"			\
-		     ".machine \"z9-109\""  "\n\t"			\
-		     "stfle %0"             "\n\t"			\
-		     ".machine pop"         "\n"			\
-		     : "=QS" (stfle_bits), "+d" (reg0)			\
-		     : : "cc");						\
-									\
-	if ((stfle_bits & (1UL << (63 - STFLE_BITS_Z196))) != 0)	\
-	  return &__##FUNC##_z196;					\
-	else if ((stfle_bits & (1UL << (63 - STFLE_BITS_Z10))) != 0)	\
-	  return &__##FUNC##_z10;					\
-	else								\
-	  return &__##FUNC##_z900;					\
-      }									\
-    else								\
-      return &__##FUNC##_z900;						\
-  }
-
-IFUNC_RESOLVE(memset)
-IFUNC_RESOLVE(memcmp)
-asm(".weak bcmp ; bcmp = memcmp");
-
-/* In the static lib memcpy is needed before the reloc is resolved.  */
-#ifdef SHARED
-IFUNC_RESOLVE(memcpy)
-#endif
-
-#endif
Index: glibc-2.22/sysdeps/s390/s390-64/multiarch/memcmp-s390x.S
===================================================================
--- /dev/null
+++ glibc-2.22/sysdeps/s390/s390-64/multiarch/memcmp-s390x.S
@@ -0,0 +1,101 @@
+/* CPU specific memcmp 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 = address of first memory area
+     %r3 = address of second memory area
+     %r4 = number of bytes to compare.  */
+
+       .text
+
+#if IS_IN (libc)
+
+ENTRY(__memcmp_z196)
+	.machine "z196"
+	ltgr    %r4,%r4
+	je      .L_Z196_4
+	aghi    %r4,-1
+	srlg    %r1,%r4,8
+	ltgr    %r1,%r1
+	jne     .L_Z196_2
+.L_Z196_3:
+	exrl    %r4,.L_Z196_14
+.L_Z196_4:
+	ipm     %r2
+	sllg    %r2,%r2,34
+	srag    %r2,%r2,62
+	br      %r14
+.L_Z196_17:
+	la      %r3,256(%r3)
+	la      %r2,256(%r2)
+	aghi    %r1,-1
+	je      .L_Z196_3
+.L_Z196_2:
+	pfd     1,512(%r3)
+	pfd     1,512(%r2)
+	clc     0(256,%r3),0(%r2)
+	je      .L_Z196_17
+	ipm     %r2
+	sllg    %r2,%r2,34
+	srag    %r2,%r2,62
+	br      %r14
+.L_Z196_14:
+	clc     0(1,%r3),0(%r2)
+END(__memcmp_z196)
+
+ENTRY(__memcmp_z10)
+	.machine "z10"
+	ltgr    %r4,%r4
+	je      .L_Z10_4
+	aghi    %r4,-1
+	srlg    %r1,%r4,8
+	cgijlh  %r1,0,.L_Z10_12
+.L_Z10_3:
+	exrl    %r4,.L_Z10_15
+.L_Z10_4:
+	ipm     %r2
+	sllg    %r2,%r2,34
+	srag    %r2,%r2,62
+	br      %r14
+.L_Z10_12:
+	pfd     1,512(%r3)
+	pfd     1,512(%r2)
+	clc     0(256,%r3),0(%r2)
+	jne     .L_Z10_4
+	la      %r3,256(%r3)
+	la      %r2,256(%r2)
+	brctg   %r1,.L_Z10_12
+	j       .L_Z10_3
+.L_Z10_15:
+	clc     0(1,%r3),0(%r2)
+END(__memcmp_z10)
+
+#endif /* IS_IN (libc) */
+
+#include "../memcmp.S"
+
+#if !IS_IN (libc)
+.globl   memcmp
+.set     memcmp,__memcmp_default
+.weak    bcmp
+.set	 bcmp,__memcmp_default
+#endif
Index: glibc-2.22/sysdeps/s390/s390-64/multiarch/memcmp.S
===================================================================
--- glibc-2.22.orig/sysdeps/s390/s390-64/multiarch/memcmp.S
+++ /dev/null
@@ -1,101 +0,0 @@
-/* CPU specific memcmp 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 = address of first memory area
-     %r3 = address of second memory area
-     %r4 = number of bytes to compare.  */
-
-       .text
-
-#if IS_IN (libc)
-
-ENTRY(__memcmp_z196)
-	.machine "z196"
-        ltgr    %r4,%r4
-        je      .L_Z196_4
-        aghi    %r4,-1
-        srlg    %r1,%r4,8
-        ltgr    %r1,%r1
-        jne     .L_Z196_2
-.L_Z196_3:
-        exrl    %r4,.L_Z196_14
-.L_Z196_4:
-        ipm     %r2
-        sllg    %r2,%r2,34
-        srag    %r2,%r2,62
-        br      %r14
-.L_Z196_17:
-        la      %r3,256(%r3)
-        la      %r2,256(%r2)
-        aghi    %r1,-1
-        je      .L_Z196_3
-.L_Z196_2:
-        pfd     1,512(%r3)
-        pfd     1,512(%r2)
-        clc     0(256,%r3),0(%r2)
-        je      .L_Z196_17
-        ipm     %r2
-        sllg    %r2,%r2,34
-        srag    %r2,%r2,62
-        br      %r14
-.L_Z196_14:
-        clc     0(1,%r3),0(%r2)
-END(__memcmp_z196)
-
-ENTRY(__memcmp_z10)
-	.machine "z10"
-        ltgr    %r4,%r4
-        je      .L_Z10_4
-        aghi    %r4,-1
-        srlg    %r1,%r4,8
-        cgijlh  %r1,0,.L_Z10_12
-.L_Z10_3:
-        exrl    %r4,.L_Z10_15
-.L_Z10_4:
-        ipm     %r2
-        sllg    %r2,%r2,34
-        srag    %r2,%r2,62
-        br      %r14
-.L_Z10_12:
-        pfd     1,512(%r3)
-        pfd     1,512(%r2)
-        clc     0(256,%r3),0(%r2)
-        jne     .L_Z10_4
-        la      %r3,256(%r3)
-        la      %r2,256(%r2)
-        brctg   %r1,.L_Z10_12
-        j       .L_Z10_3
-.L_Z10_15:
-        clc     0(1,%r3),0(%r2)
-END(__memcmp_z10)
-
-#endif
-
-#include "../memcmp.S"
-
-#if !IS_IN (libc)
-.globl   memcmp
-.set     memcmp,__memcmp_z900
-.weak    bcmp
-.set	 bcmp,__memcmp_z900
-#endif
Index: glibc-2.22/sysdeps/s390/s390-64/multiarch/memcmp.c
===================================================================
--- /dev/null
+++ glibc-2.22/sysdeps/s390/s390-64/multiarch/memcmp.c
@@ -0,0 +1,24 @@
+/* Multiple versions of memcmp.
+   Copyright (C) 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/>.  */
+
+#if IS_IN (libc)
+# include <ifunc-resolve.h>
+
+s390_libc_ifunc (memcmp)
+asm(".weak bcmp ; bcmp = memcmp");
+#endif
Index: glibc-2.22/sysdeps/s390/s390-64/multiarch/memcpy-s390x.S
===================================================================
--- /dev/null
+++ glibc-2.22/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
Index: glibc-2.22/sysdeps/s390/s390-64/multiarch/memcpy.S
===================================================================
--- glibc-2.22.orig/sysdeps/s390/s390-64/multiarch/memcpy.S
+++ /dev/null
@@ -1,94 +0,0 @@
-/* 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
-
-#include "../memcpy.S"
-
-#if !defined SHARED || !IS_IN (libc)
-.globl   memcpy
-.set     memcpy,__memcpy_z900
-#endif
Index: glibc-2.22/sysdeps/s390/s390-64/multiarch/memcpy.c
===================================================================
--- /dev/null
+++ glibc-2.22/sysdeps/s390/s390-64/multiarch/memcpy.c
@@ -0,0 +1,24 @@
+/* Multiple versions of memcpy.
+   Copyright (C) 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/>.  */
+
+/* In the static lib memcpy is needed before the reloc is resolved.  */
+#if defined SHARED && IS_IN (libc)
+# include <ifunc-resolve.h>
+
+s390_libc_ifunc (memcpy)
+#endif
Index: glibc-2.22/sysdeps/s390/s390-64/multiarch/memset-s390x.S
===================================================================
--- /dev/null
+++ glibc-2.22/sysdeps/s390/s390-64/multiarch/memset-s390x.S
@@ -0,0 +1,109 @@
+/* Set a block of memory to some byte value.  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 = address of memory area
+     %r3 = byte to fill memory with
+     %r4 = number of bytes to fill.  */
+
+       .text
+
+#if IS_IN (libc)
+
+ENTRY(__memset_z196)
+	.machine "z196"
+	ltgr    %r4,%r4
+	je      .L_Z196_4
+	stc     %r3,0(%r2)
+	lgr     %r1,%r2
+	cghi    %r4,1
+	je      .L_Z196_4
+	aghi    %r4,-2
+	srlg    %r5,%r4,8
+	ltgr    %r5,%r5
+	jne     .L_Z196_1
+.L_Z196_3:
+	exrl    %r4,.L_Z196_17
+.L_Z196_4:
+	br      %r14
+.L_Z196_1:
+	cgfi	%r5,1048576
+	jh	__memset_mvcle	   # Switch to mvcle for >256MB
+.L_Z196_2:
+	pfd     2,1024(%r1)
+	mvc     1(256,%r1),0(%r1)
+	aghi    %r5,-1
+	la      %r1,256(%r1)
+	jne     .L_Z196_2
+	j       .L_Z196_3
+.L_Z196_17:
+	mvc     1(1,%r1),0(%r1)
+END(__memset_z196)
+
+ENTRY(__memset_z10)
+	.machine "z10"
+	cgije   %r4,0,.L_Z10_4
+	stc     %r3,0(%r2)
+	lgr     %r1,%r2
+	cgije   %r4,1,.L_Z10_4
+	aghi    %r4,-2
+	srlg    %r5,%r4,8
+	cgijlh  %r5,0,.L_Z10_15
+.L_Z10_3:
+	exrl    %r4,.L_Z10_18
+.L_Z10_4:
+	br      %r14
+.L_Z10_15:
+	cgfi	%r5,163840          # Switch to mvcle for >40MB
+	jh	__memset_mvcle
+.L_Z10_14:
+	pfd     2,1024(%r1)
+	mvc     1(256,%r1),0(%r1)
+	la      %r1,256(%r1)
+	brctg   %r5,.L_Z10_14
+	j       .L_Z10_3
+.L_Z10_18:
+	mvc     1(1,%r1),0(%r1)
+END(__memset_z10)
+
+ENTRY(__memset_mvcle)
+	aghi	%r4,2               # take back the change done by the caller
+	lgr	%r0,%r2		    # save source address
+	lgr	%r1,%r3		    # move pad byte to R1
+	lgr	%r3,%r4             # move length to r3
+	sgr	%r4,%r4		    # no source for MVCLE, only a pad byte
+	sgr	%r5,%r5
+.L0:	mvcle	%r2,%r4,0(%r1)	    # thats it, MVCLE is your friend
+	jo	.L0
+	lgr	%r2,%r0		    # return value is source address
+.L1:
+	br	%r14
+END(__memset_mvcle)
+
+#endif /* IS_IN (libc) */
+
+#include "../memset.S"
+
+#if !IS_IN (libc)
+.globl   memset
+.set     memset,__memset_default
+#endif
Index: glibc-2.22/sysdeps/s390/s390-64/multiarch/memset.S
===================================================================
--- glibc-2.22.orig/sysdeps/s390/s390-64/multiarch/memset.S
+++ /dev/null
@@ -1,109 +0,0 @@
-/* Set a block of memory to some byte value.  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 = address of memory area
-     %r3 = byte to fill memory with
-     %r4 = number of bytes to fill.  */
-
-       .text
-
-#if IS_IN (libc)
-
-ENTRY(__memset_z196)
-	.machine "z196"
-        ltgr    %r4,%r4
-        je      .L_Z196_4
-        stc     %r3,0(%r2)
-        lgr     %r1,%r2
-        cghi    %r4,1
-        je      .L_Z196_4
-        aghi    %r4,-2
-        srlg    %r5,%r4,8
-        ltgr    %r5,%r5
-        jne     .L_Z196_1
-.L_Z196_3:
-        exrl    %r4,.L_Z196_17
-.L_Z196_4:
-        br      %r14
-.L_Z196_1:
-	cgfi	%r5,1048576
-	jh	__memset_mvcle	   # Switch to mvcle for >256MB
-.L_Z196_2:
-        pfd     2,1024(%r1)
-        mvc     1(256,%r1),0(%r1)
-        aghi    %r5,-1
-        la      %r1,256(%r1)
-        jne     .L_Z196_2
-        j       .L_Z196_3
-.L_Z196_17:
-        mvc     1(1,%r1),0(%r1)
-END(__memset_z196)
-
-ENTRY(__memset_z10)
-	.machine "z10"
-        cgije   %r4,0,.L_Z10_4
-        stc     %r3,0(%r2)
-        lgr     %r1,%r2
-        cgije   %r4,1,.L_Z10_4
-        aghi    %r4,-2
-        srlg    %r5,%r4,8
-        cgijlh  %r5,0,.L_Z10_15
-.L_Z10_3:
-        exrl    %r4,.L_Z10_18
-.L_Z10_4:
-        br      %r14
-.L_Z10_15:
-	cgfi	%r5,163840          # Switch to mvcle for >40MB
-	jh	__memset_mvcle
-.L_Z10_14:
-        pfd     2,1024(%r1)
-        mvc     1(256,%r1),0(%r1)
-        la      %r1,256(%r1)
-        brctg   %r5,.L_Z10_14
-        j       .L_Z10_3
-.L_Z10_18:
-        mvc     1(1,%r1),0(%r1)
-END(__memset_z10)
-
-ENTRY(__memset_mvcle)
-	aghi	%r4,2               # take back the change done by the caller
-	lgr	%r0,%r2		    # save source address
-	lgr	%r1,%r3		    # move pad byte to R1
-	lgr	%r3,%r4             # move length to r3
-	sgr	%r4,%r4		    # no source for MVCLE, only a pad byte
-	sgr	%r5,%r5
-.L0:	mvcle	%r2,%r4,0(%r1)	    # thats it, MVCLE is your friend
-	jo	.L0
-	lgr	%r2,%r0		    # return value is source address
-.L1:
-	br	%r14
-END(__memset_mvcle)
-
-#endif
-
-#include "../memset.S"
-
-#if !IS_IN (libc)
-.globl   memset
-.set     memset,__memset_z900
-#endif
Index: glibc-2.22/sysdeps/s390/s390-64/multiarch/memset.c
===================================================================
--- /dev/null
+++ glibc-2.22/sysdeps/s390/s390-64/multiarch/memset.c
@@ -0,0 +1,23 @@
+/* Multiple versions of memset.
+   Copyright (C) 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/>.  */
+
+#if IS_IN (libc)
+# include <ifunc-resolve.h>
+
+s390_libc_ifunc (memset)
+#endif

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File 0005-S390-Refactor-ifunc-implementations-and-enable-ifunc.patch of Package glibc (Revision bb8b7d5bc7e32dafeb34eaff2692e661)

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