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40 lines
1.6 KiB
40 lines
1.6 KiB
# Individual arch/{arch}/Makefiles should use -EL/-EB to set intended |
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# endianness and -m32/-m64 to set word size based on Kconfigs instead of |
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# relying on the target triple. |
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CLANG_TARGET_FLAGS_arm := arm-linux-gnueabi |
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CLANG_TARGET_FLAGS_arm64 := aarch64-linux-gnu |
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CLANG_TARGET_FLAGS_hexagon := hexagon-linux-musl |
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CLANG_TARGET_FLAGS_m68k := m68k-linux-gnu |
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CLANG_TARGET_FLAGS_mips := mipsel-linux-gnu |
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CLANG_TARGET_FLAGS_powerpc := powerpc64le-linux-gnu |
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CLANG_TARGET_FLAGS_riscv := riscv64-linux-gnu |
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CLANG_TARGET_FLAGS_s390 := s390x-linux-gnu |
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CLANG_TARGET_FLAGS_x86 := x86_64-linux-gnu |
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CLANG_TARGET_FLAGS := $(CLANG_TARGET_FLAGS_$(SRCARCH)) |
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ifeq ($(CROSS_COMPILE),) |
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ifeq ($(CLANG_TARGET_FLAGS),) |
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$(error Specify CROSS_COMPILE or add '--target=' option to scripts/Makefile.clang) |
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else |
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CLANG_FLAGS += --target=$(CLANG_TARGET_FLAGS) |
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endif # CLANG_TARGET_FLAGS |
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else |
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CLANG_FLAGS += --target=$(notdir $(CROSS_COMPILE:%-=%)) |
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endif # CROSS_COMPILE |
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ifeq ($(LLVM_IAS),0) |
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CLANG_FLAGS += -fno-integrated-as |
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GCC_TOOLCHAIN_DIR := $(dir $(shell which $(CROSS_COMPILE)elfedit)) |
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CLANG_FLAGS += --prefix=$(GCC_TOOLCHAIN_DIR)$(notdir $(CROSS_COMPILE)) |
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else |
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CLANG_FLAGS += -fintegrated-as |
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endif |
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# By default, clang only warns when it encounters an unknown warning flag or |
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# certain optimization flags it knows it has not implemented. |
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# Make it behave more like gcc by erroring when these flags are encountered |
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# so they can be implemented or wrapped in cc-option. |
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CLANG_FLAGS += -Werror=unknown-warning-option |
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CLANG_FLAGS += -Werror=ignored-optimization-argument |
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KBUILD_CFLAGS += $(CLANG_FLAGS) |
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KBUILD_AFLAGS += $(CLANG_FLAGS) |
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export CLANG_FLAGS
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