Add error message for old armclang
when armclang<6.10, cpu modifiers MUST be
specified on command line.
Signed-off-by: Jerry Yu <jerry.h.yu@arm.com>
diff --git a/library/sha256.c b/library/sha256.c
index 104fa80..5df61ac 100644
--- a/library/sha256.c
+++ b/library/sha256.c
@@ -70,11 +70,17 @@
# endif
# if !defined(__ARM_FEATURE_CRYPTO) || defined(MBEDTLS_ENABLE_ARM_CRYPTO_EXTENSIONS_COMPILER_FLAG)
-# if defined(__clang__)
+# if defined(__ARMCOMPILER_VERSION)
+# if __ARMCOMPILER_VERSION <= 6090000
+# error "Must use minimum -march=armv8-a+crypto for MBEDTLS_SHA256_USE_A64_CRYPTO_*"
+# endif
+# pragma clang attribute push (__attribute__((target("sha2"))), apply_to=function)
+# define MBEDTLS_POP_TARGET_PRAGMA
+# elif defined(__clang__)
# if __clang_major__ < 4
# error "A more recent Clang is required for MBEDTLS_SHA256_USE_A64_CRYPTO_*"
# endif
-# pragma clang attribute push (__attribute__((target("crypto,sha2"))), apply_to=function)
+# pragma clang attribute push (__attribute__((target("crypto"))), apply_to=function)
# define MBEDTLS_POP_TARGET_PRAGMA
# elif defined(__GNUC__)
/* FIXME: GCC 5 claims to support Armv8 Crypto Extensions, but some