linux-kernel - Re: [PATCH] Documentation: ptp: Fix build failure on MIPS cross builds

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Message-ID: <20141021110724.GA16479@netboy>
Date:	Tue, 21 Oct 2014 13:07:25 +0200
From:	Richard Cochran <richardcochran@...il.com>
To:	Markos Chandras <markos.chandras@...tec.com>
Cc:	linux-mips@...ux-mips.org, Jonathan Corbet <corbet@....net>,
	netdev@...r.kernel.org, linux-doc@...r.kernel.org,
	linux-kernel@...r.kernel.org
Subject: Re: [PATCH] Documentation: ptp: Fix build failure on MIPS cross
 builds

On Mon, Oct 20, 2014 at 09:42:18AM +0100, Markos Chandras wrote:
> diff --git a/Documentation/ptp/Makefile b/Documentation/ptp/Makefile
> index 293d6c09a11f..397c1cd2eda7 100644
> --- a/Documentation/ptp/Makefile
> +++ b/Documentation/ptp/Makefile
> @@ -1,5 +1,15 @@
>  # List of programs to build
> +ifndef CROSS_COMPILE
>  hostprogs-y := testptp
> +else
> +# MIPS system calls are defined based on the -mabi that is passed
> +# to the toolchain which may or may not be a valid option
> +# for the host toolchain. So disable testptp if target architecture
> +# is MIPS but the host isn't.
> +ifndef CONFIG_MIPS
> +hostprogs-y := testptp
> +endif
> +endif

It seems like a shame to simply give up and not compile this at all.
Is there no way to correctly cross compile this for MIPS?

Thanks,
Richard
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