Re: [PATCH 0/6] Evolve SDK to chroot-free usage

[Christopher Larson <kergoth@gmail.com>]

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This series seems like a definite improvement, but I'd suggest explicitly
noting in the README that once you've run the relocate-sdk.sh script, the
second not recommended option of entering the chroot will no longer
function due to the changed interpreter paths.

On Sun, Mar 22, 2020 at 1:37 AM Jan Kiszka <jan.kiszka@siemens.com> wrote:

> Currently, our SDK can primarily be used by chroot'ing into it, taking
> the to-be-built project with you (bind mount etc.). This was enough for
> a start but we can do better.
>
> This series enhance the SDK to become usage as a normal cross-toolchain
> on your host system. For that purpose, we add a script that relocates
> the toolchain after installation, adjust binary search paths and
> sysroot. So, the only remaining difference to a yocto or buildroot
> toolchain is the need to run the relocation script once after unpacking
> the SDK.
>
> The series furthermore allows to customize the SDK content via the
> image-generating layer.
>
> The series (together with all other pending patching of mine) can also
> be found at https://github.com/siemens/isar/commits/jan/queue.
>
> While I already shrunk the SDK a bit by removing the now obsolete
> isar-apt repo, I suspect we could further reduce the deployment size by
> dropping chroot support completely, only including the compiler and
> their library dependencies. OTOH, sdk-debian-buster-arm64.tar.xz is now
> 142M here, unpacked 680M, while ARM's
> gcc-arm-8.3-2019.03-x86_64-aarch64-linux-gnu.tar.xz has
> 260M packed and 1.5G(!) unpacked. So we are either not really off or are
> still missing something.
>
> Jan
>
> Jan Kiszka (6):
>   sdk: Add support for adding self-defined sdk packages
>   sdk: Make all links in the SDK chroot relative
>   sdk: Add script to relocate SDK
>   sdk: Do not ship the isar-apt repo
>   sdk: Inject sysroot path when calling relocated toolchain
>   sdk: Update README.sdk
>
>  doc/user_manual.md                                 |  1 +
>  meta/classes/image-sdk-extension.bbclass           | 28 ++++++++-
>  meta/recipes-devtools/sdkchroot/files/README.sdk   | 66
> ++++++++++------------
>  .../sdkchroot/files/relocate-sdk.sh                | 32 +++++++++++
>  meta/recipes-devtools/sdkchroot/sdkchroot.bb       | 35 ++++++------
>  5 files changed, 108 insertions(+), 54 deletions(-)
>  create mode 100755 meta/recipes-devtools/sdkchroot/files/relocate-sdk.sh
>
> --
> 2.16.4
>
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> .
>


-- 
Christopher Larson
kergoth at gmail dot com
Founder - BitBake, OpenEmbedded, OpenZaurus
Senior Software Engineer, Mentor Graphics

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