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-rw-r--r--ChangeLog15
-rw-r--r--sysdeps/s390/Makefile3
-rw-r--r--sysdeps/s390/ifunc-strspn.h52
-rw-r--r--sysdeps/s390/multiarch/Makefile3
-rw-r--r--sysdeps/s390/multiarch/ifunc-impl-list.c14
-rw-r--r--sysdeps/s390/strspn-c.c (renamed from sysdeps/s390/multiarch/strspn-c.c)18
-rw-r--r--sysdeps/s390/strspn-vx.S (renamed from sysdeps/s390/multiarch/strspn-vx.S)19
-rw-r--r--sysdeps/s390/strspn.c (renamed from sysdeps/s390/multiarch/strspn.c)21
8 files changed, 125 insertions, 20 deletions
diff --git a/ChangeLog b/ChangeLog
index e349dd31a9..295ad8c7a3 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,6 +1,21 @@
 2018-12-18  Stefan Liebler  <stli@linux.ibm.com>
 
 	* sysdeps/s390/multiarch/Makefile
+	(sysdep_routines): Remove strspn variants.
+	* sysdeps/s390/Makefile (sysdep_routines): Add strspn variants.
+	* sysdeps/s390/multiarch/ifunc-impl-list.c
+	(__libc_ifunc_impl_list): Refactor ifunc handling for strspn.
+	* sysdeps/s390/multiarch/strspn-c.c: Move to ...
+	* sysdeps/s390/strspn-c.c: ... here and adjust ifunc handling.
+	* sysdeps/s390/multiarch/strspn-vx.S: Move to ...
+	* sysdeps/s390/strspn-vx.S: ... here and adjust ifunc handling.
+	* sysdeps/s390/multiarch/strspn.c: Move to ...
+	* sysdeps/s390/strspn.c: ... here and adjust ifunc handling.
+	* sysdeps/s390/ifunc-strspn.h: New file.
+
+2018-12-18  Stefan Liebler  <stli@linux.ibm.com>
+
+	* sysdeps/s390/multiarch/Makefile
 	(sysdep_routines): Remove strrchr variants.
 	* sysdeps/s390/Makefile (sysdep_routines): Add strrchr variants.
 	* sysdeps/s390/multiarch/ifunc-impl-list.c
diff --git a/sysdeps/s390/Makefile b/sysdeps/s390/Makefile
index c423c80a43..604ca68ef1 100644
--- a/sysdeps/s390/Makefile
+++ b/sysdeps/s390/Makefile
@@ -72,5 +72,6 @@ sysdep_routines += bzero memset memset-z900 \
 		   strncmp strncmp-vx strncmp-c \
 		   strchr strchr-vx strchr-c \
 		   strchrnul strchrnul-vx strchrnul-c \
-		   strrchr strrchr-vx strrchr-c
+		   strrchr strrchr-vx strrchr-c \
+		   strspn strspn-vx strspn-c
 endif
diff --git a/sysdeps/s390/ifunc-strspn.h b/sysdeps/s390/ifunc-strspn.h
new file mode 100644
index 0000000000..1152ba1f3d
--- /dev/null
+++ b/sysdeps/s390/ifunc-strspn.h
@@ -0,0 +1,52 @@
+/* strspn variant information on S/390 version.
+   Copyright (C) 2018 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 defined USE_MULTIARCH && IS_IN (libc)		\
+  && ! defined HAVE_S390_MIN_Z13_ZARCH_ASM_SUPPORT
+# define HAVE_STRSPN_IFUNC	1
+#else
+# define HAVE_STRSPN_IFUNC	0
+#endif
+
+#ifdef HAVE_S390_VX_ASM_SUPPORT
+# define HAVE_STRSPN_IFUNC_AND_VX_SUPPORT HAVE_STRSPN_IFUNC
+#else
+# define HAVE_STRSPN_IFUNC_AND_VX_SUPPORT 0
+#endif
+
+#if defined HAVE_S390_MIN_Z13_ZARCH_ASM_SUPPORT
+# define STRSPN_DEFAULT		STRSPN_Z13
+# define HAVE_STRSPN_C		0
+# define HAVE_STRSPN_Z13	1
+#else
+# define STRSPN_DEFAULT		STRSPN_C
+# define HAVE_STRSPN_C		1
+# define HAVE_STRSPN_Z13	HAVE_STRSPN_IFUNC_AND_VX_SUPPORT
+#endif
+
+#if HAVE_STRSPN_C
+# define STRSPN_C		__strspn_c
+#else
+# define STRSPN_C		NULL
+#endif
+
+#if HAVE_STRSPN_Z13
+# define STRSPN_Z13		__strspn_vx
+#else
+# define STRSPN_Z13		NULL
+#endif
diff --git a/sysdeps/s390/multiarch/Makefile b/sysdeps/s390/multiarch/Makefile
index c826755558..9b141e338c 100644
--- a/sysdeps/s390/multiarch/Makefile
+++ b/sysdeps/s390/multiarch/Makefile
@@ -1,6 +1,5 @@
 ifeq ($(subdir),string)
-sysdep_routines += strspn strspn-vx strspn-c \
-		   strpbrk strpbrk-vx strpbrk-c \
+sysdep_routines += strpbrk strpbrk-vx strpbrk-c \
 		   strcspn strcspn-vx strcspn-c \
 		   memchr memchr-vx \
 		   rawmemchr rawmemchr-vx rawmemchr-c \
diff --git a/sysdeps/s390/multiarch/ifunc-impl-list.c b/sysdeps/s390/multiarch/ifunc-impl-list.c
index 60cd705ffa..c39e1f793a 100644
--- a/sysdeps/s390/multiarch/ifunc-impl-list.c
+++ b/sysdeps/s390/multiarch/ifunc-impl-list.c
@@ -39,6 +39,7 @@
 #include <ifunc-strchr.h>
 #include <ifunc-strchrnul.h>
 #include <ifunc-strrchr.h>
+#include <ifunc-strspn.h>
 
 /* Maximum number of IFUNC implementations.  */
 #define MAX_IFUNC	3
@@ -333,6 +334,18 @@ __libc_ifunc_impl_list (const char *name, struct libc_ifunc_impl *array,
 		)
 #endif /* HAVE_STRRCHR_IFUNC  */
 
+#if HAVE_STRSPN_IFUNC
+    IFUNC_IMPL (i, name, strspn,
+# if HAVE_STRSPN_Z13
+		IFUNC_IMPL_ADD (array, i, strspn,
+				dl_hwcap & HWCAP_S390_VX, STRSPN_Z13)
+# endif
+# if HAVE_STRSPN_C
+		IFUNC_IMPL_ADD (array, i, strspn, 1, STRSPN_C)
+# endif
+		)
+#endif /* HAVE_STRSPN_IFUNC  */
+
 #ifdef HAVE_S390_VX_ASM_SUPPORT
 
 # define IFUNC_VX_IMPL(FUNC)						\
@@ -367,7 +380,6 @@ __libc_ifunc_impl_list (const char *name, struct libc_ifunc_impl *array,
 
   IFUNC_VX_IMPL (wcsrchr);
 
-  IFUNC_VX_IMPL (strspn);
   IFUNC_VX_IMPL (wcsspn);
 
   IFUNC_VX_IMPL (strpbrk);
diff --git a/sysdeps/s390/multiarch/strspn-c.c b/sysdeps/s390/strspn-c.c
index 0efe61bfb2..506f668321 100644
--- a/sysdeps/s390/multiarch/strspn-c.c
+++ b/sysdeps/s390/strspn-c.c
@@ -16,13 +16,17 @@
    License along with the GNU C Library; if not, see
    <http://www.gnu.org/licenses/>.  */
 
-#if defined HAVE_S390_VX_ASM_SUPPORT && IS_IN (libc)
-# define STRSPN  __strspn_c
-# ifdef SHARED
-#  undef libc_hidden_builtin_def
-#  define libc_hidden_builtin_def(name)				\
+#include <ifunc-strspn.h>
+
+#if HAVE_STRSPN_C
+# if HAVE_STRSPN_IFUNC
+#  define STRSPN STRSPN_C
+#  if defined SHARED && IS_IN (libc)
+#   undef libc_hidden_builtin_def
+#   define libc_hidden_builtin_def(name)			\
      __hidden_ver1 (__strspn_c, __GI_strspn, __strspn_c);
-# endif /* SHARED */
+#  endif
+# endif
 
 # include <string/strspn.c>
-#endif /* HAVE_S390_VX_ASM_SUPPORT && IS_IN (libc) */
+#endif
diff --git a/sysdeps/s390/multiarch/strspn-vx.S b/sysdeps/s390/strspn-vx.S
index 6aa823e63b..ae5529b567 100644
--- a/sysdeps/s390/multiarch/strspn-vx.S
+++ b/sysdeps/s390/strspn-vx.S
@@ -16,7 +16,9 @@
    License along with the GNU C Library; if not, see
    <http://www.gnu.org/licenses/>.  */
 
-#if defined HAVE_S390_VX_ASM_SUPPORT && IS_IN (libc)
+#include <ifunc-strspn.h>
+
+#if HAVE_STRSPN_Z13
 
 # include "sysdep.h"
 # include "asm-syntax.h"
@@ -57,7 +59,7 @@
 	otherwise =0;
    r9: loaded byte count of vlbb accept-string
 */
-ENTRY(__strspn_vx)
+ENTRY(STRSPN_Z13)
 	.machine "z13"
 	.machinemode "zarch_nohighgprs"
 
@@ -252,5 +254,14 @@ ENTRY(__strspn_vx)
 				   Check for zero is in jump-target.  */
 	j	.Lslow_next_acc_notonbb /* ... and search for zero in
 					    fully loaded vreg again.  */
-END(__strspn_vx)
-#endif /* HAVE_S390_VX_ASM_SUPPORT && IS_IN (libc) */
+END(STRSPN_Z13)
+
+# if ! HAVE_STRSPN_IFUNC
+strong_alias (STRSPN_Z13, strspn)
+# endif
+
+# if ! HAVE_STRSPN_C && defined SHARED && IS_IN (libc)
+strong_alias (STRSPN_Z13, __GI_strspn)
+# endif
+
+#endif /* HAVE_STRSPN_Z13  */
diff --git a/sysdeps/s390/multiarch/strspn.c b/sysdeps/s390/strspn.c
index bedbe98cfc..91401fdaf8 100644
--- a/sysdeps/s390/multiarch/strspn.c
+++ b/sysdeps/s390/strspn.c
@@ -16,7 +16,9 @@
    License along with the GNU C Library; if not, see
    <http://www.gnu.org/licenses/>.  */
 
-#if defined HAVE_S390_VX_ASM_SUPPORT && IS_IN (libc)
+#include <ifunc-strspn.h>
+
+#if HAVE_STRSPN_IFUNC
 # define strspn __redirect_strspn
 /* Omit the strspn inline definitions because it would redefine strspn.  */
 # define __NO_STRING_INLINES
@@ -24,8 +26,17 @@
 # undef strspn
 # include <ifunc-resolve.h>
 
-s390_vx_libc_ifunc2_redirected (__redirect_strspn, __strspn, strspn)
+# if HAVE_STRSPN_C
+extern __typeof (__redirect_strspn) STRSPN_C attribute_hidden;
+# endif
+
+# if HAVE_STRSPN_Z13
+extern __typeof (__redirect_strspn) STRSPN_Z13 attribute_hidden;
+# endif
 
-#else
-# include <string/strspn.c>
-#endif /* !(defined HAVE_S390_VX_ASM_SUPPORT && IS_IN (libc)) */
+s390_libc_ifunc_expr (__redirect_strspn, strspn,
+		      (HAVE_STRSPN_Z13 && (hwcap & HWCAP_S390_VX))
+		      ? STRSPN_Z13
+		      : STRSPN_DEFAULT
+		      )
+#endif /* HAVE_STRSPN_IFUNC  */
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