On Fri, 18 Nov 2022 14:54:52 GMT, Jorn Vernee <jver...@openjdk.org> wrote:

>> Pull in linker implementation changes, that include non-trivial changes to 
>> VM code, from the panama-foreign repo into the main JDK.
>> 
>> This is split off from the main JEP integration to make reviewing easier.
>> 
>> This includes the following patches:
>> 
>> 1. https://github.com/openjdk/panama-foreign/pull/698
>> 2. https://github.com/openjdk/panama-foreign/pull/699
>> 3. (part of) https://github.com/openjdk/panama-foreign/pull/731
>> 4. https://github.com/openjdk/panama-foreign/pull/740
>> 5. https://github.com/openjdk/panama-foreign/pull/746
>> 6. https://github.com/openjdk/panama-foreign/pull/742
>> 7. https://github.com/openjdk/panama-foreign/pull/743
>> 
>> Probably the biggest change to the code comes from replacing `VMReg` - which 
>> can not represent offsets into the stack that are not a multiple of the VM's 
>> stack slot size (32-bits) - with the new `VMStorage` class, which can 
>> describe byte offsets into the stack, as well as having a register mask to 
>> indicate only certain register segments.
>> 
>> The only part of 3. that is in this PR is the part that turns the 
>> `VMStorage` class in Java into a record.
>> 
>> Please refer to the PR of each individual patch for a more detailed 
>> description.
>
> Jorn Vernee has updated the pull request incrementally with one additional 
> commit since the last revision:
> 
>   8296973: saving errno on a value-returning function crashes the JVM
>   
>   Reviewed-by: mcimadamore

Unless I'm missing something important, 
`vmstorage.inline.hpp`/`vmstorage_<cpu>.inline.hpp` should be named 
`vmstorage.hpp`/`vmstorage_<cpu>.hpp`.

Otherwise, looks good.

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

Marked as reviewed by vlivanov (Reviewer).

PR: https://git.openjdk.org/jdk/pull/11019

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