Integrated: 8369468: Rdtsc: Move getCPUIDBrandString_stub into VM_Version stub area

Mon Oct 13 07:51:14 UTC 2025

On Thu, 9 Oct 2025 05:59:54 GMT, Axel Boldt-Christmas <aboldtch at openjdk.org> wrote:

> Currently these stubs are created in `Rdtsc::initialize` which may be called from the first ElapsedCounter now call. This causes problems with lock ranks as we may be holding a lock while taking time, because we need to lock the code cache to create a stub.
> 
> I suggest we move the `getCPUIDBrandString_stub` next to the other `VM_Version` stubs and generate them together. This is done at the earliest point we can, right after the CodeCache system has been initialized.

This pull request has now been integrated.

Changeset: a6f624b0
Author:    Axel Boldt-Christmas <aboldtch at openjdk.org>
URL:       https://git.openjdk.org/jdk/commit/a6f624b0743a1e0a3df4e8323c13b0d1fd6d0002
Stats:     29 lines in 3 files changed: 4 ins; 24 del; 1 mod

8369468: Rdtsc: Move getCPUIDBrandString_stub into VM_Version stub area

Reviewed-by: mgronlun, kvn

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PR: https://git.openjdk.org/jdk/pull/27711