@@ -100,5 +100,6 @@ sysdep_routines += wcslen wcslen-vx wcslen-c \
wcspbrk wcspbrk-vx wcspbrk-c \
wcscspn wcscspn-vx wcscspn-c \
wmemchr wmemchr-vx wmemchr-c \
- wmemset wmemset-vx wmemset-c
+ wmemset wmemset-vx wmemset-c \
+ wmemcmp wmemcmp-vx wmemcmp-c
endif
new file mode 100644
@@ -0,0 +1,52 @@
+/* wmemcmp 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_WMEMCMP_IFUNC 1
+#else
+# define HAVE_WMEMCMP_IFUNC 0
+#endif
+
+#ifdef HAVE_S390_VX_ASM_SUPPORT
+# define HAVE_WMEMCMP_IFUNC_AND_VX_SUPPORT HAVE_WMEMCMP_IFUNC
+#else
+# define HAVE_WMEMCMP_IFUNC_AND_VX_SUPPORT 0
+#endif
+
+#if defined HAVE_S390_MIN_Z13_ZARCH_ASM_SUPPORT
+# define WMEMCMP_DEFAULT WMEMCMP_Z13
+# define HAVE_WMEMCMP_C 0
+# define HAVE_WMEMCMP_Z13 1
+#else
+# define WMEMCMP_DEFAULT WMEMCMP_C
+# define HAVE_WMEMCMP_C 1
+# define HAVE_WMEMCMP_Z13 HAVE_WMEMCMP_IFUNC_AND_VX_SUPPORT
+#endif
+
+#if HAVE_WMEMCMP_C
+# define WMEMCMP_C __wmemcmp_c
+#else
+# define WMEMCMP_C NULL
+#endif
+
+#if HAVE_WMEMCMP_Z13
+# define WMEMCMP_Z13 __wmemcmp_vx
+#else
+# define WMEMCMP_Z13 NULL
+#endif
@@ -1,7 +1,3 @@
-ifeq ($(subdir),wcsmbs)
-sysdep_routines += wmemcmp wmemcmp-vx wmemcmp-c
-endif
-
ifeq ($(subdir),iconvdata)
override define generate-8bit-table
$(make-target-directory)
@@ -64,6 +64,7 @@
#include <ifunc-wcscspn.h>
#include <ifunc-wmemchr.h>
#include <ifunc-wmemset.h>
+#include <ifunc-wmemcmp.h>
/* Maximum number of IFUNC implementations. */
#define MAX_IFUNC 3
@@ -658,17 +659,17 @@ __libc_ifunc_impl_list (const char *name, struct libc_ifunc_impl *array,
)
#endif /* HAVE_WMEMSET_IFUNC */
-#ifdef HAVE_S390_VX_ASM_SUPPORT
-
-# define IFUNC_VX_IMPL(FUNC) \
- IFUNC_IMPL (i, name, FUNC, \
- IFUNC_IMPL_ADD (array, i, FUNC, dl_hwcap & HWCAP_S390_VX, \
- __##FUNC##_vx) \
- IFUNC_IMPL_ADD (array, i, FUNC, 1, __##FUNC##_c))
-
- IFUNC_VX_IMPL (wmemcmp);
-
-#endif /* HAVE_S390_VX_ASM_SUPPORT */
+#if HAVE_WMEMCMP_IFUNC
+ IFUNC_IMPL (i, name, wmemcmp,
+# if HAVE_WMEMCMP_Z13
+ IFUNC_IMPL_ADD (array, i, wmemcmp,
+ dl_hwcap & HWCAP_S390_VX, WMEMCMP_Z13)
+# endif
+# if HAVE_WMEMCMP_C
+ IFUNC_IMPL_ADD (array, i, wmemcmp, 1, WMEMCMP_C)
+# endif
+ )
+#endif /* HAVE_WMEMCMP_IFUNC */
return i;
}
similarity index 85%
rename from sysdeps/s390/multiarch/wmemcmp-c.c
rename to sysdeps/s390/wmemcmp-c.c
@@ -16,11 +16,12 @@
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 WMEMCMP __wmemcmp_c
+#include <ifunc-wmemcmp.h>
-# include <wchar.h>
-extern __typeof (wmemcmp) __wmemcmp_c;
+#if HAVE_WMEMCMP_C
+# if HAVE_WMEMCMP_IFUNC
+# define WMEMCMP WMEMCMP_C
+# endif
# include <wcsmbs/wmemcmp.c>
#endif
similarity index 95%
rename from sysdeps/s390/multiarch/wmemcmp-vx.S
rename to sysdeps/s390/wmemcmp-vx.S
@@ -16,7 +16,8 @@
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-wmemcmp.h>
+#if HAVE_WMEMCMP_Z13
# include "sysdep.h"
# include "asm-syntax.h"
@@ -37,7 +38,7 @@
-v17=part of s2
-v18=index of unequal
*/
-ENTRY(__wmemcmp_vx)
+ENTRY(WMEMCMP_Z13)
.machine "z13"
.machinemode "zarch_nohighgprs"
@@ -145,5 +146,9 @@ ENTRY(__wmemcmp_vx)
la %r2,0(%r5,%r2)
la %r3,0(%r5,%r3)
j .Lremaining
-END(__wmemcmp_vx)
-#endif /* HAVE_S390_VX_ASM_SUPPORT && IS_IN (libc) */
+END(WMEMCMP_Z13)
+
+# if ! HAVE_WMEMCMP_IFUNC
+strong_alias (WMEMCMP_Z13, wmemcmp)
+# endif
+#endif
similarity index 69%
rename from sysdeps/s390/multiarch/wmemcmp.c
rename to sysdeps/s390/wmemcmp.c
@@ -16,12 +16,23 @@
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-wmemcmp.h>
+
+#if HAVE_WMEMCMP_IFUNC
# include <wchar.h>
# include <ifunc-resolve.h>
-s390_vx_libc_ifunc2 (__wmemcmp, wmemcmp)
+# if HAVE_WMEMCMP_C
+extern __typeof (wmemcmp) WMEMCMP_C attribute_hidden;
+# endif
+
+# if HAVE_WMEMCMP_Z13
+extern __typeof (wmemcmp) WMEMCMP_Z13 attribute_hidden;
+# endif
-#else
-# include <wcsmbs/wmemcmp.c>
-#endif /* !(defined HAVE_S390_VX_ASM_SUPPORT && IS_IN (libc)) */
+s390_libc_ifunc_expr (wmemcmp, wmemcmp,
+ (HAVE_WMEMCMP_Z13 && (hwcap & HWCAP_S390_VX))
+ ? WMEMCMP_Z13
+ : WMEMCMP_DEFAULT
+ )
+#endif