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recordmcount.pl: fix typo in s390 mcount regex
[mirror_ubuntu-jammy-kernel.git] / scripts / Makefile.clang
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231ad7f4
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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.
4CLANG_TARGET_FLAGS_arm := arm-linux-gnueabi
5CLANG_TARGET_FLAGS_arm64 := aarch64-linux-gnu
6CLANG_TARGET_FLAGS_hexagon := hexagon-linux-musl
7CLANG_TARGET_FLAGS_m68k := m68k-linux-gnu
8CLANG_TARGET_FLAGS_mips := mipsel-linux-gnu
9CLANG_TARGET_FLAGS_powerpc := powerpc64le-linux-gnu
10CLANG_TARGET_FLAGS_riscv := riscv64-linux-gnu
11CLANG_TARGET_FLAGS_s390 := s390x-linux-gnu
12CLANG_TARGET_FLAGS_x86 := x86_64-linux-gnu
13CLANG_TARGET_FLAGS := $(CLANG_TARGET_FLAGS_$(SRCARCH))
14
15ifeq ($(CROSS_COMPILE),)
16ifeq ($(CLANG_TARGET_FLAGS),)
17$(error Specify CROSS_COMPILE or add '--target=' option to scripts/Makefile.clang)
18else
19CLANG_FLAGS += --target=$(CLANG_TARGET_FLAGS)
20endif # CLANG_TARGET_FLAGS
21else
6f5b41a2 22CLANG_FLAGS += --target=$(notdir $(CROSS_COMPILE:%-=%))
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23endif # CROSS_COMPILE
24
f12b034a 25ifeq ($(LLVM_IAS),0)
2185a7e4 26CLANG_FLAGS += -fno-integrated-as
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27GCC_TOOLCHAIN_DIR := $(dir $(shell which $(CROSS_COMPILE)elfedit))
28CLANG_FLAGS += --prefix=$(GCC_TOOLCHAIN_DIR)$(notdir $(CROSS_COMPILE))
f12b034a 29else
2185a7e4 30CLANG_FLAGS += -fintegrated-as
6f5b41a2 31endif
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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 36CLANG_FLAGS += -Werror=unknown-warning-option
0664684e 37CLANG_FLAGS += -Werror=ignored-optimization-argument
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38KBUILD_CFLAGS += $(CLANG_FLAGS)
39KBUILD_AFLAGS += $(CLANG_FLAGS)
40export CLANG_FLAGS