Commit | Line | Data |
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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 | |
13 | CLANG_TARGET_FLAGS := $(CLANG_TARGET_FLAGS_$(SRCARCH)) | |
14 | ||
15 | ifeq ($(CROSS_COMPILE),) | |
16 | ifeq ($(CLANG_TARGET_FLAGS),) | |
17 | $(error Specify CROSS_COMPILE or add '--target=' option to scripts/Makefile.clang) | |
18 | else | |
19 | CLANG_FLAGS += --target=$(CLANG_TARGET_FLAGS) | |
20 | endif # CLANG_TARGET_FLAGS | |
21 | else | |
6f5b41a2 | 22 | CLANG_FLAGS += --target=$(notdir $(CROSS_COMPILE:%-=%)) |
231ad7f4 ND |
23 | endif # CROSS_COMPILE |
24 | ||
f12b034a | 25 | ifeq ($(LLVM_IAS),0) |
2185a7e4 | 26 | CLANG_FLAGS += -fno-integrated-as |
6f5b41a2 ND |
27 | GCC_TOOLCHAIN_DIR := $(dir $(shell which $(CROSS_COMPILE)elfedit)) |
28 | CLANG_FLAGS += --prefix=$(GCC_TOOLCHAIN_DIR)$(notdir $(CROSS_COMPILE)) | |
f12b034a | 29 | else |
2185a7e4 | 30 | CLANG_FLAGS += -fintegrated-as |
6f5b41a2 | 31 | endif |
0664684e NC |
32 | # By default, clang only warns when it encounters an unknown warning flag or |
33 | # certain optimization flags it knows it has not implemented. | |
34 | # Make it behave more like gcc by erroring when these flags are encountered | |
35 | # so they can be implemented or wrapped in cc-option. | |
6f5b41a2 | 36 | CLANG_FLAGS += -Werror=unknown-warning-option |
0664684e | 37 | CLANG_FLAGS += -Werror=ignored-optimization-argument |
6f5b41a2 ND |
38 | KBUILD_CFLAGS += $(CLANG_FLAGS) |
39 | KBUILD_AFLAGS += $(CLANG_FLAGS) | |
40 | export CLANG_FLAGS |