From: Huacai Chen Date: Mon, 4 May 2026 01:00:01 +0000 (+0800) Subject: LoongArch: Specify -m32/-m64 explicitly for 32BIT/64BIT X-Git-Tag: v7.1-rc3~34^2~12 X-Git-Url: http://git.ipfire.org/?a=commitdiff_plain;h=5643c6b2c8308b206cb01cbfd0e6ac80f9f1bc9a;p=thirdparty%2Flinux.git LoongArch: Specify -m32/-m64 explicitly for 32BIT/64BIT Clang/LLVM build needs -m32/-m64 to switch triple variants (i.e. the --target=xxx parameter). Otherwise we get build errors for CONFIG_32BIT. GCC doesn't support -m32/-m64 now, but maybe support in future, so use cc-option to specify them. Reported-by: kernel test robot Closes: https://lore.kernel.org/oe-kbuild-all/202604232041.ESJDwVG4-lkp@intel.com/ Suggested-by: Nathan Chancellor Signed-off-by: Huacai Chen --- diff --git a/arch/loongarch/Makefile b/arch/loongarch/Makefile index 47516aeea9d2..54fcfa1eac1f 100644 --- a/arch/loongarch/Makefile +++ b/arch/loongarch/Makefile @@ -55,9 +55,11 @@ endif ifdef CONFIG_32BIT tool-archpref = $(32bit-tool-archpref) UTS_MACHINE := loongarch32 +cflags-y += $(call cc-option,-m32) else tool-archpref = $(64bit-tool-archpref) UTS_MACHINE := loongarch64 +cflags-y += $(call cc-option,-m64) endif ifneq ($(SUBARCH),$(ARCH)) diff --git a/arch/loongarch/vdso/Makefile b/arch/loongarch/vdso/Makefile index 42aa96249828..9c9181bb4071 100644 --- a/arch/loongarch/vdso/Makefile +++ b/arch/loongarch/vdso/Makefile @@ -12,6 +12,8 @@ obj-vdso-$(CONFIG_GENERIC_GETTIMEOFDAY) += vgettimeofday.o ccflags-vdso := \ $(filter -I%,$(KBUILD_CFLAGS)) \ $(filter -E%,$(KBUILD_CFLAGS)) \ + $(filter -m32,$(KBUILD_CFLAGS)) \ + $(filter -m64,$(KBUILD_CFLAGS)) \ $(filter -march=%,$(KBUILD_CFLAGS)) \ $(filter -m%-float,$(KBUILD_CFLAGS)) \ $(CLANG_FLAGS) \