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SubjectRe: [PATCH -next] MIPS: VDSO: Fix build error with binutils 2.24 and earlier
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On 12/23/2015 09:04 PM, Guenter Roeck wrote:
> Commit 2a037f310bab ("MIPS: VDSO: Fix build error") tries to fix a build
> error seen with binutils 2.24 and earlier. However, the fix does not work,
> and again results in the already known build errors if the kernel is built
> with an earlier version of binutils.
>
> CC arch/mips/vdso/gettimeofday.o
> /tmp/ccnOVbHT.s: Assembler messages:
> /tmp/ccnOVbHT.s:50: Error: can't resolve `_start' {*UND* section} - `L0 {.text section}
> /tmp/ccnOVbHT.s:374: Error: can't resolve `_start' {*UND* section} - `L0 {.text section}
> scripts/Makefile.build:258: recipe for target 'arch/mips/vdso/gettimeofday.o' failed
> make[2]: *** [arch/mips/vdso/gettimeofday.o] Error 1
>

> Fixes: 2a037f310bab ("MIPS: VDSO: Fix build error")

The above patch, and thus the build error with binutils 2.24 and earlier introduced by it,
has now made it into the mainline kernel.

Guenter

> Cc: Qais Yousef <qais.yousef@imgtec.com>
> Signed-off-by: Guenter Roeck <linux@roeck-us.net>
> ---
> Tested with binutils 2.25 and 2.22.
>
> arch/mips/vdso/Makefile | 2 +-
> 1 file changed, 1 insertion(+), 1 deletion(-)
>
> diff --git a/arch/mips/vdso/Makefile b/arch/mips/vdso/Makefile
> index 018f8c7b94f2..14568900fc1d 100644
> --- a/arch/mips/vdso/Makefile
> +++ b/arch/mips/vdso/Makefile
> @@ -26,7 +26,7 @@ aflags-vdso := $(ccflags-vdso) \
> # the comments on that file.
> #
> ifndef CONFIG_CPU_MIPSR6
> - ifeq ($(call ld-ifversion, -lt, 22500000, y),)
> + ifeq ($(call ld-ifversion, -lt, 22500000, y),y)
> $(warning MIPS VDSO requires binutils >= 2.25)
> obj-vdso-y := $(filter-out gettimeofday.o, $(obj-vdso-y))
> ccflags-vdso += -DDISABLE_MIPS_VDSO
>



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