8303684: Lift upcall sharing mechanism to AbstractLinker (mainline)

[JornVernee]

Port of: openjdk/panama-foreign#791 which lifts the sharing mechanism for upcall stubs to AbstractLinker.

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Progress

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Issue

• JDK-8303684: Lift upcall sharing mechanism to AbstractLinker (mainline)

Reviewers

• Maurizio Cimadamore (@mcimadamore - Reviewer) ⚠️ Review applies to 0355ab19

Reviewing

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[openjdk]

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[mlbridge]

Webrevs

• 02: Full (f4529833)
• 01: Full - Incremental (b359e2a0)
• 00: Full (0355ab19)

[mcimadamore]

Looks good (already reviewed on Panama repo)

[openjdk]

@JornVernee This change now passes all automated pre-integration checks.

ℹ️ This project also has non-automated pre-integration requirements. Please see the file CONTRIBUTING.md for details.

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8303684: Lift upcall sharing mechanism to AbstractLinker (mainline)

Reviewed-by: mcimadamore

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[JornVernee]

@feilongjiang since this contains changes to the RISCV code as well, could you test the patch? Thanks.

[feilongjiang]

I'll submit a test on RISC-V board to see the results. It may take a while.

Update:
jdk_foreign looks good on linux-riscv with release build.

[JornVernee]

/integrate

[openjdk]

Going to push as commit d4eb395.

[openjdk]

@JornVernee Pushed as commit d4eb395.

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