RFR: 8307615: Linker::nativeLinker should not be restricted (mainline)

[Jorn Vernee]

On Mon, 8 May 2023 11:10:36 GMT, Maurizio Cimadamore <mcimadamore at openjdk.org> wrote:

> Port of: https://git.openjdk.org/panama-foreign/pull/831

src/java.base/share/classes/jdk/internal/foreign/abi/AbstractLinker.java line 78:

> 76:         SharedUtils.checkSymbol(symbol);
> 77:         return downcallHandle(function, options).bindTo(symbol);
> 78:     }

This doesn't look quite right, as `downcallHandle` is being called twice? (forgot to push?).

I suggest calling `Reflection::ensureNativeAccess` immediately in each overload, and then delegating to `downcallHandle0` which doesn't check the access.

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PR Review Comment: https://git.openjdk.org/jdk/pull/13863#discussion_r1187378482