linux-kernel - Re: [tip:x86/build] x86, vdso: Error out if the vdso contains external references

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Message-Id: <20100728134252.2e4c27cf.sfr@canb.auug.org.au>
Date:	Wed, 28 Jul 2010 13:42:52 +1000
From:	Stephen Rothwell <sfr@...b.auug.org.au>
To:	hpa@...ux.intel.com
Cc:	mingo@...hat.com, hpa@...or.com, linux-kernel@...r.kernel.org,
	andi@...stfloor.org, tglx@...utronix.de,
	linux-kernel@...r.kernel.org, hpa@...or.com
Subject: Re: [tip:x86/build] x86, vdso: Error out if the vdso contains
 external references

Hi,

On Fri, 18 Jun 2010 22:16:05 GMT "tip-bot for H. Peter Anvin" <hpa@...ux.intel.com> wrote:
>
> diff --git a/arch/x86/vdso/checkundef.sh b/arch/x86/vdso/checkundef.sh
> new file mode 100755
> index 0000000..490be1c
> --- /dev/null
> +++ b/arch/x86/vdso/checkundef.sh
> @@ -0,0 +1,10 @@
> +#!/bin/sh
> +nm="$1"
> +file="$2"
> +"$nm" "$file" | grep '^ *U' > /dev/null 2>&1

Quoting $nm here doesn't work if you are building with ccache like this:

make CROSS_COMPILE="ccache ...."
-- 
Cheers,
Stephen Rothwell                    sfr@...b.auug.org.au
http://www.canb.auug.org.au/~sfr/

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