[foreign-jextract] RFR: CSupport::getSystemLinker should not be called from internal API points

[Athijegannathan Sundararajan]

On Tue, 9 Jun 2020 10:22:21 GMT, Maurizio Cimadamore <mcimadamore at openjdk.org> wrote:

> Some jextract internal classes call the external getSystemLinker method, which then does a check on the
> `foreign.restricted` property (which is disabled when jextract runs). Trusted internal API points should use the
> internal factory for the system linker instead.

Marked as reviewed by sundar (Committer).

src/jdk.incubator.jextract/share/classes/jdk/internal/jextract/impl/LayoutUtils.java line 200:

> 199:             case 32: return Primitive.Kind.Int;
> 200:             case 64: return SharedUtils.getSystemLinker().name().equals(CSupport.Win64.NAME) ?
> 201:                     Primitive.Kind.LongLong : Primitive.Kind.Long;

could use static field "abi" instead?

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PR: https://git.openjdk.java.net/panama-foreign/pull/198