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Date: Sun, 30 Oct 2016 09:05:51 -0700 From: Guenter Roeck <linux@...ck-us.net> To: Ralf Baechle <ralf@...ux-mips.org> Cc: Alex Smith <alex.smith@...tec.com>, linux-mips@...ux-mips.org, linux-kernel@...r.kernel.org, Guenter Roeck <linux@...ck-us.net>, James Hogan <james.hogan@...tec.com> Subject: [PATCH] MIPS: VDSO: Always select -msoft-float Some toolchains fail to build mips images with the following build error. arch/mips/vdso/gettimeofday.c:1:0: error: '-march=r3000' requires '-mfp32' This is seen, for example, with the 'mipsel-linux-gnu-gcc (Debian 6.1.1-9) 6.1.1 20160705' toolchain as used by the 0Day build robot when building decstation_defconfig. Comparison of compile flags suggests that the major difference is a missing '-soft-float', which is otherwise defined unconditionally. Reported-by: kbuild test robot <fengguang.wu@...el.com> Cc: James Hogan <james.hogan@...tec.com> Fixes: ebb5e78cc634 ("MIPS: Initial implementation of a VDSO") Signed-off-by: Guenter Roeck <linux@...ck-us.net> --- arch/mips/vdso/Makefile | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-) diff --git a/arch/mips/vdso/Makefile b/arch/mips/vdso/Makefile index c3dc12a8b7d9..9bdd6641400f 100644 --- a/arch/mips/vdso/Makefile +++ b/arch/mips/vdso/Makefile @@ -6,7 +6,8 @@ ccflags-vdso := \ $(filter -I%,$(KBUILD_CFLAGS)) \ $(filter -E%,$(KBUILD_CFLAGS)) \ $(filter -mmicromips,$(KBUILD_CFLAGS)) \ - $(filter -march=%,$(KBUILD_CFLAGS)) + $(filter -march=%,$(KBUILD_CFLAGS)) \ + -msoft-float cflags-vdso := $(ccflags-vdso) \ $(filter -W%,$(filter-out -Wa$(comma)%,$(KBUILD_CFLAGS))) \ -O2 -g -fPIC -fno-strict-aliasing -fno-common -fno-builtin -G 0 \ -- 2.5.0
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