[lworld] Integrated: 8376103: [lworld] Basic Zero support

[Aleksey Shipilev]

On Thu, 22 Jan 2026 13:49:59 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

This pull request has now been integrated.

Changeset: e7d07ae0
Author:    Aleksey Shipilev <shade at openjdk.org>
Committer: Chen Liang <liach at openjdk.org>
URL:       https://git.openjdk.org/valhalla/commit/e7d07ae0581d9ec437f44bc252ad3c038939b42c
Stats:     49 lines in 7 files changed: 29 ins; 1 del; 19 mod

8376103: [lworld] Basic Zero support

Reviewed-by: coleenp

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PR: https://git.openjdk.org/valhalla/pull/1943