Integrated: 8296477: Foreign linker implementation update following JEP 434

[Jorn Vernee]

On Mon, 7 Nov 2022 14:34:45 GMT, Jorn Vernee <jvernee at 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.

This pull request has now been integrated.

Changeset: 0452c39f
Author:    Jorn Vernee <jvernee at openjdk.org>
URL:       https://git.openjdk.org/jdk/commit/0452c39fecb7fa4962b00868cb20a50e5f7ab1a7
Stats:     2904 lines in 72 files changed: 1969 ins; 318 del; 617 mod

8296477: Foreign linker implementation update following JEP 434

Co-authored-by: Jorn Vernee <jvernee at openjdk.org>
Co-authored-by: Nick Gasson <ngasson at openjdk.org>
Co-authored-by: Per Minborg <pminborg at openjdk.org>
Reviewed-by: rehn, mcimadamore, vlivanov

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