@@ -70,5 +70,6 @@ sysdep_routines += bzero memset memset-z900 \
strncat strncat-vx strncat-c \
strcmp strcmp-vx strcmp-z900 \
strncmp strncmp-vx strncmp-c \
- strchr strchr-vx strchr-c
+ strchr strchr-vx strchr-c \
+ strchrnul strchrnul-vx strchrnul-c
endif
new file mode 100644
@@ -0,0 +1,52 @@
+/* strchrnul 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_STRCHRNUL_IFUNC 1
+#else
+# define HAVE_STRCHRNUL_IFUNC 0
+#endif
+
+#ifdef HAVE_S390_VX_ASM_SUPPORT
+# define HAVE_STRCHRNUL_IFUNC_AND_VX_SUPPORT HAVE_STRCHRNUL_IFUNC
+#else
+# define HAVE_STRCHRNUL_IFUNC_AND_VX_SUPPORT 0
+#endif
+
+#if defined HAVE_S390_MIN_Z13_ZARCH_ASM_SUPPORT
+# define STRCHRNUL_DEFAULT STRCHRNUL_Z13
+# define HAVE_STRCHRNUL_C 0
+# define HAVE_STRCHRNUL_Z13 1
+#else
+# define STRCHRNUL_DEFAULT STRCHRNUL_C
+# define HAVE_STRCHRNUL_C 1
+# define HAVE_STRCHRNUL_Z13 HAVE_STRCHRNUL_IFUNC_AND_VX_SUPPORT
+#endif
+
+#if HAVE_STRCHRNUL_C
+# define STRCHRNUL_C __strchrnul_c
+#else
+# define STRCHRNUL_C NULL
+#endif
+
+#if HAVE_STRCHRNUL_Z13
+# define STRCHRNUL_Z13 __strchrnul_vx
+#else
+# define STRCHRNUL_Z13 NULL
+#endif
@@ -1,6 +1,5 @@
ifeq ($(subdir),string)
-sysdep_routines += strchrnul strchrnul-vx strchrnul-c \
- strrchr strrchr-vx strrchr-c \
+sysdep_routines += strrchr strrchr-vx strrchr-c \
strspn strspn-vx strspn-c \
strpbrk strpbrk-vx strpbrk-c \
strcspn strcspn-vx strcspn-c \
@@ -37,6 +37,7 @@
#include <ifunc-strcmp.h>
#include <ifunc-strncmp.h>
#include <ifunc-strchr.h>
+#include <ifunc-strchrnul.h>
/* Maximum number of IFUNC implementations. */
#define MAX_IFUNC 3
@@ -307,6 +308,18 @@ __libc_ifunc_impl_list (const char *name, struct libc_ifunc_impl *array,
)
#endif /* HAVE_STRCHR_IFUNC */
+#if HAVE_STRCHRNUL_IFUNC
+ IFUNC_IMPL (i, name, strchrnul,
+# if HAVE_STRCHRNUL_Z13
+ IFUNC_IMPL_ADD (array, i, strchrnul,
+ dl_hwcap & HWCAP_S390_VX, STRCHRNUL_Z13)
+# endif
+# if HAVE_STRCHRNUL_C
+ IFUNC_IMPL_ADD (array, i, strchrnul, 1, STRCHRNUL_C)
+# endif
+ )
+#endif /* HAVE_STRCHRNUL_IFUNC */
+
#ifdef HAVE_S390_VX_ASM_SUPPORT
# define IFUNC_VX_IMPL(FUNC) \
@@ -337,7 +350,6 @@ __libc_ifunc_impl_list (const char *name, struct libc_ifunc_impl *array,
IFUNC_VX_IMPL (wcschr);
- IFUNC_VX_IMPL (strchrnul);
IFUNC_VX_IMPL (wcschrnul);
IFUNC_VX_IMPL (strrchr);
similarity index 81%
rename from sysdeps/s390/multiarch/strchrnul-c.c
rename to sysdeps/s390/strchrnul-c.c
@@ -16,11 +16,15 @@
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 STRCHRNUL __strchrnul_c
-# define __strchrnul STRCHRNUL
-# undef weak_alias
-# define weak_alias(name, alias)
+#include <ifunc-strchrnul.h>
+
+#if HAVE_STRCHRNUL_C
+# if HAVE_STRCHRNUL_IFUNC
+# define STRCHRNUL STRCHRNUL_C
+# define __strchrnul STRCHRNUL
+# undef weak_alias
+# define weak_alias(name, alias)
+# endif
# include <string/strchrnul.c>
#endif
similarity index 91%
rename from sysdeps/s390/multiarch/strchrnul-vx.S
rename to sysdeps/s390/strchrnul-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-strchrnul.h>
+
+#if HAVE_STRCHRNUL_Z13
# include "sysdep.h"
# include "asm-syntax.h"
@@ -35,7 +37,7 @@
-v16=part of s
-v18=vector with c replicated in every byte
*/
-ENTRY(__strchrnul_vx)
+ENTRY(STRCHRNUL_Z13)
.machine "z13"
.machinemode "zarch_nohighgprs"
@@ -89,5 +91,11 @@ ENTRY(__strchrnul_vx)
.Lend:
br %r14
-END(__strchrnul_vx)
-#endif /* HAVE_S390_VX_ASM_SUPPORT && IS_IN (libc) */
+END(STRCHRNUL_Z13)
+
+# if ! HAVE_STRCHRNUL_IFUNC
+strong_alias (STRCHRNUL_Z13, __strchrnul)
+weak_alias (__strchrnul, strchrnul)
+# endif
+
+#endif /* HAVE_STRCHRNUL_Z13 */
similarity index 67%
rename from sysdeps/s390/multiarch/strchrnul.c
rename to sysdeps/s390/strchrnul.c
@@ -16,13 +16,24 @@
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-strchrnul.h>
+
+#if HAVE_STRCHRNUL_IFUNC
# include <string.h>
# include <ifunc-resolve.h>
-s390_vx_libc_ifunc (__strchrnul)
-weak_alias (__strchrnul, strchrnul)
+# if HAVE_STRCHRNUL_C
+extern __typeof (__strchrnul) STRCHRNUL_C attribute_hidden;
+# endif
-#else
-# include <string/strchrnul.c>
-#endif /* !(defined HAVE_S390_VX_ASM_SUPPORT && IS_IN (libc)) */
+# if HAVE_STRCHRNUL_Z13
+extern __typeof (__strchrnul) STRCHRNUL_Z13 attribute_hidden;
+# endif
+
+s390_libc_ifunc_expr (__strchrnul, __strchrnul,
+ (HAVE_STRCHRNUL_Z13 && (hwcap & HWCAP_S390_VX))
+ ? STRCHRNUL_Z13
+ : STRCHRNUL_DEFAULT
+ )
+weak_alias (__strchrnul, strchrnul)
+#endif /* HAVE_STRCHRNUL_IFUNC */