Linux kernel mirror (for testing)
git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
tjh.dev
kernel
os
linux
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_loongarch := loongarch64-linux-gnusf
8CLANG_TARGET_FLAGS_m68k := m68k-linux-gnu
9CLANG_TARGET_FLAGS_mips := mipsel-linux-gnu
10CLANG_TARGET_FLAGS_powerpc := powerpc64le-linux-gnu
11CLANG_TARGET_FLAGS_riscv := riscv64-linux-gnu
12CLANG_TARGET_FLAGS_s390 := s390x-linux-gnu
13CLANG_TARGET_FLAGS_sparc := sparc64-linux-gnu
14CLANG_TARGET_FLAGS_x86 := x86_64-linux-gnu
15# This is only for i386 UM builds, which need the 32-bit target not -m32
16CLANG_TARGET_FLAGS_i386 := i386-linux-gnu
17CLANG_TARGET_FLAGS_um := $(CLANG_TARGET_FLAGS_$(SUBARCH))
18CLANG_TARGET_FLAGS := $(CLANG_TARGET_FLAGS_$(SRCARCH))
19
20ifeq ($(CLANG_TARGET_FLAGS),)
21$(error add '--target=' option to scripts/Makefile.clang)
22else
23CLANG_FLAGS += --target=$(CLANG_TARGET_FLAGS)
24endif
25
26ifeq ($(LLVM_IAS),0)
27CLANG_FLAGS += -fno-integrated-as
28GCC_TOOLCHAIN_DIR := $(dir $(shell which $(CROSS_COMPILE)elfedit))
29CLANG_FLAGS += --prefix=$(GCC_TOOLCHAIN_DIR)$(notdir $(CROSS_COMPILE))
30else
31CLANG_FLAGS += -fintegrated-as
32endif
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.
37CLANG_FLAGS += -Werror=unknown-warning-option
38CLANG_FLAGS += -Werror=ignored-optimization-argument
39CLANG_FLAGS += -Werror=option-ignored
40CLANG_FLAGS += -Werror=unused-command-line-argument
41KBUILD_CPPFLAGS += $(CLANG_FLAGS)
42export CLANG_FLAGS