riscv: move GCC version check for ARCH_SUPPORTS_INT128 to Kconfig

This becomes much neater in Kconfig. Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com> Signed-off-by: Palmer Dabbelt <palmer@sifive.com>
mariux64 · Oct 23, 2018 · ee59288 · ee59288
1 parent f31b8de
commit ee59288
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diff --git a/arch/riscv/Kconfig b/arch/riscv/Kconfig
@@ -113,6 +113,7 @@ config ARCH_RV32I
 config ARCH_RV64I
 	bool "RV64I"
 	select 64BIT
+	select ARCH_SUPPORTS_INT128 if GCC_VERSION >= 50000
 	select HAVE_FUNCTION_TRACER
 	select HAVE_FUNCTION_GRAPH_TRACER
 	select HAVE_FTRACE_MCOUNT_RECORD

diff --git a/arch/riscv/Makefile b/arch/riscv/Makefile
@@ -25,8 +25,6 @@ ifeq ($(CONFIG_ARCH_RV64I),y)
 
 	KBUILD_CFLAGS += -mabi=lp64
 	KBUILD_AFLAGS += -mabi=lp64
-
-	KBUILD_CFLAGS	+= $(call cc-ifversion, -ge, 0500, -DCONFIG_ARCH_SUPPORTS_INT128)
 
 	KBUILD_MARCH = rv64im
 	KBUILD_LDFLAGS += -melf64lriscv