[lworld] RFR: 8376103: [lworld] Basic Zero support [v3]

[Coleen Phillimore]

On Wed, 4 Feb 2026 09:16:46 GMT, Aleksey Shipilev <shade at openjdk.org> wrote:

>> On the way to stabilizing Valhalla for inclusion into mainline, we want to have Zero builds at least buildable and lightly runnable, e.g. for creating their own CDS archives. There is likely to be some bugtail to pass all the tests, this is out of scope for this basic support. We need to pull some fixes from mainline to make this work going smoother.
>> 
>> I have also enabled Zero Hotspot build in GHA back to keep it buildable.
>> 
>> Additional testing:
>>  - [x] Linux x86_64 zero fastdebug, build works
>>  - [x] Linux x86_64 zero fastdebug, bootcycle build works
>
> Aleksey Shipilev has updated the pull request with a new target base due to a merge or a rebase. The pull request now contains four commits:
> 
>  - Merge branch 'lworld' into JDK-8376103-zero-support
>  - Merge branch 'lworld' into JDK-8376103-zero-support
>  - Build works
>  - Basic Zero build is working

Looks good. Thanks for fixing zero.

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Marked as reviewed by coleenp (Committer).

PR Review: https://git.openjdk.org/valhalla/pull/1943#pullrequestreview-3750993511