From ee67855ecd9d02da348af11ec8474698b886a0e6 Mon Sep 17 00:00:00 2001 From: Paul Burton Date: Mon, 6 Aug 2018 15:24:27 -0700 Subject: [PATCH] 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 Patchwork: https://patchwork.linux-mips.org/patch/20154/ Cc: James Hogan Cc: Ralf Baechle Cc: linux-mips@linux-mips.org --- arch/mips/vdso/Makefile | 5 +++++ 1 file changed, 5 insertions(+) diff --git a/arch/mips/vdso/Makefile b/arch/mips/vdso/Makefile index 477c463c89ec..bd79b27faa2b 100644 --- a/arch/mips/vdso/Makefile +++ b/arch/mips/vdso/Makefile @@ -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 \