projects / linux-block.git / blame
| Commit | Line | Data |
|---|---|---|
| 231ad7f4 ND |
1 | # Individual arch/{arch}/Makefiles should use -EL/-EB to set intended |
| 2 | # endianness and -m32/-m64 to set word size based on Kconfigs instead of | |
| 3 | # relying on the target triple. | |
| 4 | CLANG_TARGET_FLAGS_arm := arm-linux-gnueabi | |
| 5 | CLANG_TARGET_FLAGS_arm64 := aarch64-linux-gnu | |
| 6 | CLANG_TARGET_FLAGS_hexagon := hexagon-linux-musl | |
| 7 | CLANG_TARGET_FLAGS_m68k := m68k-linux-gnu | |
| 8 | CLANG_TARGET_FLAGS_mips := mipsel-linux-gnu | |
| 9 | CLANG_TARGET_FLAGS_powerpc := powerpc64le-linux-gnu | |
| 10 | CLANG_TARGET_FLAGS_riscv := riscv64-linux-gnu | |
| 11 | CLANG_TARGET_FLAGS_s390 := s390x-linux-gnu | |
| 12 | CLANG_TARGET_FLAGS_x86 := x86_64-linux-gnu | |
| c7500c1b | 13 | CLANG_TARGET_FLAGS_um := $(CLANG_TARGET_FLAGS_$(SUBARCH)) |
| 231ad7f4 ND |
14 | CLANG_TARGET_FLAGS := $(CLANG_TARGET_FLAGS_$(SRCARCH)) |
| 15 | ||
| 16 | ifeq ($(CROSS_COMPILE),) | |
| 17 | ifeq ($(CLANG_TARGET_FLAGS),) | |
| 18 | $(error Specify CROSS_COMPILE or add '--target=' option to scripts/Makefile.clang) | |
| 19 | else | |
| 20 | CLANG_FLAGS += --target=$(CLANG_TARGET_FLAGS) | |
| 21 | endif # CLANG_TARGET_FLAGS | |
| 22 | else | |
| 6f5b41a2 | 23 | CLANG_FLAGS += --target=$(notdir $(CROSS_COMPILE:%-=%)) |
| 231ad7f4 ND |
24 | endif # CROSS_COMPILE |
| 25 | ||
| f12b034a | 26 | ifeq ($(LLVM_IAS),0) |
| 2185a7e4 | 27 | CLANG_FLAGS += -fno-integrated-as |
| 6f5b41a2 ND |
28 | GCC_TOOLCHAIN_DIR := $(dir $(shell which $(CROSS_COMPILE)elfedit)) |
| 29 | CLANG_FLAGS += --prefix=$(GCC_TOOLCHAIN_DIR)$(notdir $(CROSS_COMPILE)) | |
| f12b034a | 30 | else |
| 2185a7e4 | 31 | CLANG_FLAGS += -fintegrated-as |
| 6f5b41a2 | 32 | endif |
| 0664684e NC |
33 | # By default, clang only warns when it encounters an unknown warning flag or |
| 34 | # certain optimization flags it knows it has not implemented. | |
| 35 | # Make it behave more like gcc by erroring when these flags are encountered | |
| 36 | # so they can be implemented or wrapped in cc-option. | |
| 6f5b41a2 | 37 | CLANG_FLAGS += -Werror=unknown-warning-option |
| 0664684e | 38 | CLANG_FLAGS += -Werror=ignored-optimization-argument |
| 6f5b41a2 ND |
39 | KBUILD_CFLAGS += $(CLANG_FLAGS) |
| 40 | KBUILD_AFLAGS += $(CLANG_FLAGS) | |
| 41 | export CLANG_FLAGS |