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-rw-r--r--sysdeps/s390/multiarch/gconv_simple.c23
1 files changed, 12 insertions, 11 deletions
diff --git a/sysdeps/s390/multiarch/gconv_simple.c b/sysdeps/s390/multiarch/gconv_simple.c
index aaa1ebf74a..078d992c13 100644
--- a/sysdeps/s390/multiarch/gconv_simple.c
+++ b/sysdeps/s390/multiarch/gconv_simple.c
@@ -27,17 +27,18 @@
# define ICONV_C_NAME(NAME) __##NAME##_c
# define ICONV_VX_NAME(NAME) __##NAME##_vx
-# define ICONV_VX_IFUNC(FUNC) \
- extern __typeof (ICONV_C_NAME (FUNC)) __##FUNC; \
- s390_vx_libc_ifunc (__##FUNC) \
- int FUNC (struct __gconv_step *step, struct __gconv_step_data *data, \
- const unsigned char **inptrp, const unsigned char *inend, \
- unsigned char **outbufstart, size_t *irreversible, \
- int do_flush, int consume_incomplete) \
- { \
- return __##FUNC (step, data, inptrp, inend,outbufstart, \
- irreversible, do_flush, consume_incomplete); \
- }
+# ifdef HAVE_S390_MIN_Z13_ZARCH_ASM_SUPPORT
+/* We support z13 instructions by default -> Just use the vector variant. */
+# define ICONV_VX_IFUNC(FUNC) strong_alias (ICONV_VX_NAME (FUNC), FUNC)
+# else
+/* We have to use ifunc to determine if z13 instructions are supported. */
+# define ICONV_VX_IFUNC(FUNC) \
+ s390_libc_ifunc_expr (ICONV_C_NAME (FUNC), FUNC, \
+ (hwcap & HWCAP_S390_VX) \
+ ? ICONV_VX_NAME (FUNC) \
+ : ICONV_C_NAME (FUNC) \
+ )
+# endif
# define ICONV_VX_SINGLE(NAME) \
static __typeof (NAME##_single) __##NAME##_vx_single __attribute__((alias(#NAME "_single")));