Re: [Xen-devel] [PATCH for-4.8] flask: build policy in different locations

[Daniel De Graaf <dgdegra@xxxxxxxxxxxxx>]

On 10/28/2016 11:17 AM, Wei Liu wrote:
> The flask policy can be build twice -- one for hypervisor and one for
> tools.
>
> Before this patch, everything is built inside tools/flask/policy
> directory.  It is possible to have a race to write to the same output
> file when running parallel builds.
>
> Prepend output file names with FLASK_BUILD_DIR. Hypervisor and tools
> build will set that variable to different directories, so that we can
> be safe from races.
>
> Adjust other bits of the build system as needed.
>
> Signed-off-by: Wei Liu <wei.liu2@xxxxxxxxxx>
Acked-by: Daniel De Graaf <dgdegra@xxxxxxxxxxxxx>

Pulling the definition of POLICY_FILENAME out of Makefile.common might
remove the need for the cmp||cp line in the xen-side Makefile, but that
probably belongs in another patch.

--
Daniel De Graaf
National Security Agency

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