RFR: 8359373: Split stubgen initial blob into pre and post-universe blobs [v2]

[Andrew Dinn]

On Thu, 12 Jun 2025 17:43:19 GMT, Vladimir Kozlov <kvn at openjdk.org> wrote:

>> Andrew Dinn has updated the pull request incrementally with one additional commit since the last revision:
>> 
>>   locate x86 stub generation methods in class
>
> src/hotspot/cpu/zero/stubGenerator_zero.cpp line 182:
> 
>> 180: 
>> 181:   void generate_preuniverse_stubs() {
>> 182:     // preuniverse stubs are not needed for zero
> 
> Zero has `_fence_entry` initialization.

Ah yes, missed that. I pushed a fix

n.b. I have still left the blob size as 0 in stubDeclarations_zero.hpp which means no blob will be created.

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PR Review Comment: https://git.openjdk.org/jdk/pull/25784#discussion_r2143335009