RFR: 8309065: Move the logic to determine archive heap location from CDS to G1 GC [v4]

[Ioi Lam]

On Fri, 9 Jun 2023 23:06:12 GMT, Ashutosh Mehra <duke at openjdk.org> wrote:

>> This patch is the first step towards having a single set of GC APIs for allocating heap space for the archived objects (See https://bugs.openjdk.org/browse/JDK-8296263).
>> It moves some of the G1 specific logic from CDS to G1 gc without changing the functionality.
>> 
>> Changes that add/update GC APIs for handling archive heap would be introduced in upcoming patches.
>
> Ashutosh Mehra has updated the pull request incrementally with one additional commit since the last revision:
> 
>   Add comment to alloc_archive_region()
>   
>   Signed-off-by: Ashutosh Mehra <asmehra at redhat.com>

I merged with the latest mainline and started a final test run on our CI. I will sponsor this PR after the test passes.

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PR Comment: https://git.openjdk.org/jdk/pull/14208#issuecomment-1587917421