Question about supporting aot on other platforms (RISC-V)

[Hamlin Li]

Hi,

I'm trying to apply changes related to aot on riscv (first step is
https://github.com/openjdk/jdk/pull/26101, also plan to apply further
changes in the future gradually).

As Andrew suggested in the pr, there will be more changes (especially
related to code save/restore) from leyden premain to mainline.
I went through the pr's and discussion of leyden, found out several changes
might be platform related:
1. Store cpu features in AOTCodeCache header (
https://github.com/openjdk/leyden/pull/84 ) (Open)
2. AOT code generation should support UseCompactObjectHeaders (
https://github.com/openjdk/leyden/pull/78 ) (committed into premain)

I think in the short future, these above pr's are going to get into
mainline. But I might overlook some pr's or discussions,
Besides of these above pr's, are there any other potential changes or
discussions I should pay attention to when I try to support aot on riscv?
I asked the questions to make sure after I integrate
https://github.com/openjdk/jdk/pull/26101, even if more leyden changes are
merged (including the above ones) into mainline, I can still make aot work
as expected on riscv quickly, rather than break aot things for a long time,
i.e. hope no surprise in the progress.

Thank you
-Hamlin
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