RFR: 8316234: AArch64: fastdebug build failure with GCC 12 and 13 due to -Wnonnull warning in vm_version_linux_aarch64.cpp [v2]

[Kim Barrett]

On Tue, 28 Nov 2023 09:02:35 GMT, Kim Barrett <kbarrett at openjdk.org> wrote:

> We (Oracle) cross-build linux-aarch64 from linux-x64 (CI uses Oracle Linux 8).

It turns out I was wrong about that.  We aren't cross-building, but I was confused by 
https://bugs.openjdk.org/browse/JDK-8320942
So that's not a difference after all.  So I have no idea why some folks are getting warnings but others aren't.
We probably need to do some detailed configuration comparisons to get to the bottom of this.

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PR Comment: https://git.openjdk.org/jdk/pull/16819#issuecomment-1832531444