This PR is successor of #20789 . I got some comments in there, then I needed to fix in many pooints. And also I have to fix branch name to kick GHA automatically (#20789 is named with `pr/`, it meets the condition to skip GHA). Hence I've opened another PR for this JBS issue.
This PR has been updated with about topics since #20789: * Use `JavaFrameAnchor` instead of raw frame pointer to unwind frame of `UpcallStub`. * The change happens x86 (includes AMD64), aarch64, PPC64, RISC-V 64 only - s390 is out of scope because SA does not have s390 implementation. * Only both AMD64 and aarch64 have tested on GHA. * Refactor testcase to meet expected condition certainly. ------------- Commit messages: - 8339307: jhsdb jstack could not trace FFM upcall frame Changes: https://git.openjdk.org/jdk/pull/20885/files Webrev: https://webrevs.openjdk.org/?repo=jdk&pr=20885&range=00 Issue: https://bugs.openjdk.org/browse/JDK-8339307 Stats: 449 lines in 12 files changed: 439 ins; 0 del; 10 mod Patch: https://git.openjdk.org/jdk/pull/20885.diff Fetch: git fetch https://git.openjdk.org/jdk.git pull/20885/head:pull/20885 PR: https://git.openjdk.org/jdk/pull/20885