The MIPS VDSO code filters out a subset of known-good flags from KBUILD_CFLAGS to use when building VDSO libraries. When we build using clang we need to allow the --target flag through, otherwise we'll generally attempt to build the VDSO for the architecture of the build machine rather than for MIPS. Signed-off-by: Paul Burton <paul.burton@xxxxxxxx> Cc: James Hogan <jhogan@xxxxxxxxxx> Cc: Ralf Baechle <ralf@xxxxxxxxxxxxxx> Cc: linux-mips@xxxxxxxxxxxxxx --- arch/mips/vdso/Makefile | 5 +++++ 1 file changed, 5 insertions(+) diff --git a/arch/mips/vdso/Makefile b/arch/mips/vdso/Makefile index ce196046ac3e..39f42af7fc7d 100644 --- a/arch/mips/vdso/Makefile +++ b/arch/mips/vdso/Makefile @@ -8,6 +8,11 @@ ccflags-vdso := \ $(filter -E%,$(KBUILD_CFLAGS)) \ $(filter -mmicromips,$(KBUILD_CFLAGS)) \ $(filter -march=%,$(KBUILD_CFLAGS)) + +ifeq ($(cc-name),clang) +ccflags-vdso += $(filter --target=%,$(KBUILD_CFLAGS)) +endif + cflags-vdso := $(ccflags-vdso) \ $(filter -W%,$(filter-out -Wa$(comma)%,$(KBUILD_CFLAGS))) \ -O2 -g -fPIC -fno-strict-aliasing -fno-common -fno-builtin -G 0 \ -- 2.18.0
