On Wed, 2017-08-09 at 10:48 -0700, Juro Bystricky wrote:
> Conditionally support binary reproducibility in built images.
> If BUILD_REPRODUCIBLE_BINARIES = 1 then:
>
> 1. Do not randomize library addresses
> 2. Set/export PRELINK_TIMESTAMP to a reproducible value.
> If REPRODUCIBLE_TIMESTAMP_ROOTFS is specified, then the value will
> be used. Otherwise the timestamp will be derived from the top git commit.
>
> Signed-off-by: Juro Bystricky <[email protected]>
> ---
> meta/classes/image-prelink.bbclass | 12 +++++++++++-
> 1 file changed, 11 insertions(+), 1 deletion(-)
>
> diff --git a/meta/classes/image-prelink.bbclass
> b/meta/classes/image-prelink.bbclass
> index 4157df0..e833d47 100644
> --- a/meta/classes/image-prelink.bbclass
> +++ b/meta/classes/image-prelink.bbclass
> @@ -36,7 +36,17 @@ prelink_image () {
> dynamic_loader=$(linuxloader)
>
> # prelink!
> - ${STAGING_SBINDIR_NATIVE}/prelink --root ${IMAGE_ROOTFS} -amR -N -c
> ${sysconfdir}/prelink.conf --dynamic-linker $dynamic_loader
> + if [ "$BUILD_REPRODUCIBLE_BINARIES" = "1" ]; then
> + bbnote " prelink: BUILD_REPRODUCIBLE_BINARIES..."
> + if [ "$REPRODUCIBLE_TIMESTAMP_ROOTFS" = "" ]; then
> + export PRELINK_TIMESTAMP=`git log -1 --pretty=%ct `
as Chris suggested in other email, better to used $() instead of ``
> + else
> + export PRELINK_TIMESTAMP=$REPRODUCIBLE_TIMESTAMP_ROOTFS
> + fi
> + ${STAGING_SBINDIR_NATIVE}/prelink --root ${IMAGE_ROOTFS} -am -N
> -c ${sysconfdir}/prelink.conf --dynamic-linker $dynamic_loader
> + else
> + ${STAGING_SBINDIR_NATIVE}/prelink --root ${IMAGE_ROOTFS} -amR
> -N -c ${sysconfdir}/prelink.conf --dynamic-linker $dynamic_loader
> + fi
>
> # Remove the prelink.conf if we had to add it.
> if [ "$dummy_prelink_conf" = "true" ]; then
> --
> 2.7.4
>
--
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