Enable Clang Compilation for the vdso32 library. Cc: Catalin Marinas <catalin.marinas@xxxxxxx> Cc: Will Deacon <will@xxxxxxxxxx> Reviewed-by: Nathan Chancellor <natechancellor@xxxxxxxxx> Tested-by: Nathan Chancellor <natechancellor@xxxxxxxxx> # build Acked-by: Catalin Marinas <catalin.marinas@xxxxxxx> Signed-off-by: Vincenzo Frascino <vincenzo.frascino@xxxxxxx> --- arch/arm64/kernel/vdso32/Makefile | 11 +++++++++++ 1 file changed, 11 insertions(+) diff --git a/arch/arm64/kernel/vdso32/Makefile b/arch/arm64/kernel/vdso32/Makefile index 04df57b43cb1..3964738ebbde 100644 --- a/arch/arm64/kernel/vdso32/Makefile +++ b/arch/arm64/kernel/vdso32/Makefile @@ -10,7 +10,18 @@ include $(srctree)/lib/vdso/Makefile # Same as cc-*option, but using CC_COMPAT instead of CC ifeq ($(CONFIG_CC_IS_CLANG), y) +COMPAT_GCC_TOOLCHAIN_DIR := $(dir $(shell which $(CROSS_COMPILE_COMPAT)elfedit)) +COMPAT_GCC_TOOLCHAIN := $(realpath $(COMPAT_GCC_TOOLCHAIN_DIR)/..) + +CC_COMPAT_CLANG_FLAGS := --target=$(notdir $(CROSS_COMPILE_COMPAT:%-=%)) +CC_COMPAT_CLANG_FLAGS += --prefix=$(COMPAT_GCC_TOOLCHAIN_DIR) +CC_COMPAT_CLANG_FLAGS += -no-integrated-as -Qunused-arguments +ifneq ($(COMPAT_GCC_TOOLCHAIN),) +CC_COMPAT_CLANG_FLAGS += --gcc-toolchain=$(COMPAT_GCC_TOOLCHAIN) +endif + CC_COMPAT ?= $(CC) +CC_COMPAT += $(CC_COMPAT_CLANG_FLAGS) else CC_COMPAT ?= $(CROSS_COMPILE_COMPAT)gcc endif -- 2.25.1
