Unverified Commit ee67855e authored Aug 06, 2018 by Paul Burton

MIPS: vdso: Allow clang's --target flag in VDSO cflags



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@mips.com>
Patchwork: https://patchwork.linux-mips.org/patch/20154/
Cc: James Hogan <jhogan@kernel.org>
Cc: Ralf Baechle <ralf@linux-mips.org>
Cc: linux-mips@linux-mips.org

parent 4467f7ad

arch/mips/vdso/Makefile

+5 −0

Original line number	Diff line number	Diff line
		@@ -9,6 +9,11 @@ ccflags-vdso := \
		$(filter -mmicromips,$(KBUILD_CFLAGS)) \
		$(filter -march=%,$(KBUILD_CFLAGS)) \
		-D__VDSO__

		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 \

Admin message