On 03/17/2016 12:40 PM, gm...@reliableembeddedsystems.com wrote:
Hi,
It may sound slightly crazy:) but can I use a toolchain, which was created by
Poky as an external toolchain for Poky?
What I am after is something like this:
I create a multiplatfrom v7 compatible Yocto project, which spits out
toolchain/rootfs/kernel/various device trees.[1]
Now I need to build for each board a custom u-boot, something like [2][3],...
Obviously [2] and [3] build again the toolchain. Would it be possible to reuse
the toolchain built by [1] like an
external toolchain to save some build time?
Regards,
Robert
[1]
https://github.com/RobertBerger/meta-mainline/tree/jethro-training-v4.4.x/multi-v7-ml
[2]
https://github.com/RobertBerger/meta-mainline/tree/jethro-training-v4.4.x/beagle-bone-black-multi-v7-ml
[3]
https://github.com/RobertBerger/meta-mainline/tree/jethro-training-v4.4.x/zedboard-multi-v7-ml
No need for an external toolchain. Simply point builds [2] & [3]
to the sstate-cache from build [1]. This will allow sharing of
much of the build, certainly the toolchain, with the subsequent
builds. Modify your local.conf to include these lines:
# Reusable state information
SSTATE_MIRRORS ?= "\
file://.* file:///BUILD1/sstate-cache/PATH"
(of course set BUILD1 to the actual path of your build tree)
--
Gary Thomas | Consulting for the
MLB Associates |Embedded world
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