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| author | James Hogan <james.hogan@imgtec.com> | 2016-10-06 23:10:41 +0100 |
|---|---|---|
| committer | Ralf Baechle <ralf@linux-mips.org> | 2016-10-11 15:03:47 +0200 |
| commit | 034827c727f7f3946a18355b63995b402c226c82 (patch) | |
| tree | d0f7b1102dbd5ef32ecb70f79d7260b67806d9d5 /arch/mips/vdso/Makefile | |
| parent | cabca8c098f00c91aeb59170e86e5c5fa4f494c2 (diff) | |
| download | lwn-034827c727f7f3946a18355b63995b402c226c82.tar.gz lwn-034827c727f7f3946a18355b63995b402c226c82.zip | |
MIPS: Fix -mabi=64 build of vdso.lds
The native ABI vDSO linker script vdso.lds is built by preprocessing
vdso.lds.S, with the native -mabi flag passed in to get the correct ABI
definitions. Unfortunately however certain toolchains choke on -mabi=64
without a corresponding compatible -march flag, for example:
cc1: error: ‘-march=mips32r2’ is not compatible with the selected ABI
scripts/Makefile.build:338: recipe for target 'arch/mips/vdso/vdso.lds' failed
Fix this by including ccflags-vdso in the KBUILD_CPPFLAGS for vdso.lds,
which includes the appropriate -march flag.
Fixes: ebb5e78cc634 ("MIPS: Initial implementation of a VDSO")
Signed-off-by: James Hogan <james.hogan@imgtec.com>
Reviewed-by: Maciej W. Rozycki <macro@imgtec.com>
Cc: linux-mips@linux-mips.org
Cc: stable@vger.kernel.org # 4.4.x-
Patchwork: https://patchwork.linux-mips.org/patch/14368/
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
Diffstat (limited to 'arch/mips/vdso/Makefile')
| -rw-r--r-- | arch/mips/vdso/Makefile | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/arch/mips/vdso/Makefile b/arch/mips/vdso/Makefile index 3b4538ec0102..de9e8836d248 100644 --- a/arch/mips/vdso/Makefile +++ b/arch/mips/vdso/Makefile @@ -82,7 +82,7 @@ obj-vdso := $(obj-vdso-y:%.o=$(obj)/%.o) $(obj-vdso): KBUILD_CFLAGS := $(cflags-vdso) $(native-abi) $(obj-vdso): KBUILD_AFLAGS := $(aflags-vdso) $(native-abi) -$(obj)/vdso.lds: KBUILD_CPPFLAGS := $(native-abi) +$(obj)/vdso.lds: KBUILD_CPPFLAGS := $(ccflags-vdso) $(native-abi) $(obj)/vdso.so.dbg.raw: $(obj)/vdso.lds $(obj-vdso) FORCE $(call if_changed,vdsold) |