linux-kernel - Re: [PATCH] Documentation: fix vdso_standalone_test

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Message-ID: <1413807810.17703.6.camel@x41>
Date:	Mon, 20 Oct 2014 14:23:30 +0200
From:	Paul Bolle <pebolle@...cali.nl>
To:	Peter Foley <pefoley2@...oley.com>
Cc:	linux-kernel@...r.kernel.org, rdunlap@...radead.org,
	jkosina@...e.cz, luto@...capital.net, hpa@...or.com,
	jwboyer@...oraproject.org, linux-doc@...r.kernel.org
Subject: Re: [PATCH] Documentation: fix vdso_standalone_test_x86 on 32-bit

Peter Foley schreef op wo 08-10-2014 om 15:49 [-0400]:
> vdso_standalone_test_x86 needs -lgcc_s to build succesfully on 32bit.
> 
> Signed-off-by: Peter Foley <pefoley2@...oley.com>
> ---
>  Documentation/vDSO/Makefile | 3 +++
>  1 file changed, 3 insertions(+)
> 
> diff --git a/Documentation/vDSO/Makefile b/Documentation/vDSO/Makefile
> index 2b99e57..5e5ad9f 100644
> --- a/Documentation/vDSO/Makefile
> +++ b/Documentation/vDSO/Makefile
> @@ -10,3 +10,6 @@ always := $(hostprogs-y)
>  HOSTCFLAGS := -I$(objtree)/usr/include -std=gnu99
>  HOSTCFLAGS_vdso_standalone_test_x86.o := -fno-asynchronous-unwind-tables -fno-stack-protector
>  HOSTLOADLIBES_vdso_standalone_test_x86 := -nostdlib
> +ifeq($(CONFIG_X86_32),y)
> +HOSTLOADLIBES_vdso_standalone_test_x86 += -lgcc_s
> +endif

Applying this patch on top of v3.18-rc1 to get it to build for 32 bit
x86 triggers this build error (when calling "make -s mrproper", which is
done early in the build of a Fedora kernel rpm):
    Documentation/vDSO/Makefile:13: *** missing separator.  Stop.
    make[1]: *** [Documentation/vDSO] Error 2
    make: *** [_clean_Documentation] Error 2

Using 
    ifeq ($(CONFIG_X86_32),y)

fixes that error. And with that space added this patch unbreaks the
build of v3.18-rc1 for 32 bit x86.

Thanks,


Paul Bolle

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