RFR: 8331921: Hotspot assembler files should use common logic to setup exported functions [v2]

[Erik Joelsson]

On Thu, 23 May 2024 16:33:14 GMT, Magnus Ihse Bursie <ihse at openjdk.org> wrote:

>> As seen in [JDK-8331541](https://bugs.openjdk.org/browse/JDK-8331541), if we are not consistently setting all assembler directives correctly, we can get errors that are not detected by the linker.
>> 
>> We should stop duplicating this code and create a unified macro to properly setup functions, and use it everywhere.
>
> Magnus Ihse Bursie has updated the pull request with a new target base due to a merge or a rebase. The pull request now contains five commits:
> 
>  - Merge branch 'master' into hotspot-assembler-functions
>  - Fix copyright headers
>  - Fix building on macos/aarch64
>  - Use % instead of @ due to arm assembler
>  - 8331921: Hotspot assembler files should use common logic to setup exported functions

Looks good from a build perspective.

-------------

Marked as reviewed by erikj (Reviewer).

PR Review: https://git.openjdk.org/jdk/pull/19138#pullrequestreview-2076832025