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| author | Masahiro Yamada <masahiroy@kernel.org> | 2021-08-05 17:01:02 +0200 |
|---|---|---|
| committer | Masahiro Yamada <masahiroy@kernel.org> | 2021-08-10 02:13:25 +0200 |
| commit | 52cc02b910284d6bddba46cce402044ab775f314 (patch) | |
| tree | 2f2c4f7433d7f43200a976781bd1ae5c4438be50 /arch/riscv/Makefile | |
| parent | Documentation/llvm: update CROSS_COMPILE inferencing (diff) | |
| download | linux-52cc02b910284d6bddba46cce402044ab775f314.tar.xz linux-52cc02b910284d6bddba46cce402044ab775f314.zip | |
kbuild: check CONFIG_AS_IS_LLVM instead of LLVM_IAS
LLVM_IAS is the user interface to set the -(no-)integrated-as flag,
and it should be used only for that purpose.
LLVM_IAS is checked in some places to determine the assembler type,
but it is not precise.
For example,
$ make CC=gcc LLVM_IAS=1
... will use the GNU assembler (i.e. binutils) since LLVM_IAS=1 is
effective only when $(CC) is clang.
Of course, 'CC=gcc LLVM_IAS=1' is an odd combination, but the build
system can be more robust against such insane input.
Commit ba64beb17493a ("kbuild: check the minimum assembler version in
Kconfig") introduced CONFIG_AS_IS_GNU/LLVM, which is more precise
because Kconfig checks the version string from the assembler in use.
Signed-off-by: Masahiro Yamada <masahiroy@kernel.org>
Reviewed-by: Nick Desaulniers <ndesaulniers@google.com>
Reviewed-by: Nathan Chancellor <nathan@kernel.org>
Diffstat (limited to 'arch/riscv/Makefile')
| -rw-r--r-- | arch/riscv/Makefile | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/arch/riscv/Makefile b/arch/riscv/Makefile index bc74afdbf31e..dcfbd2a87d41 100644 --- a/arch/riscv/Makefile +++ b/arch/riscv/Makefile @@ -41,7 +41,7 @@ endif ifeq ($(CONFIG_LD_IS_LLD),y) KBUILD_CFLAGS += -mno-relax KBUILD_AFLAGS += -mno-relax -ifneq ($(LLVM_IAS),1) +ifndef CONFIG_AS_IS_LLVM KBUILD_CFLAGS += -Wa,-mno-relax KBUILD_AFLAGS += -Wa,-mno-relax endif |