Alpine Linux would not provide `.eh_frame` enough to unwind in both regular binary and debuginfo. We need to refer `.debug_frame` in debuginfo for unwinding.
This ticket also re-enable mixed jstack jtreg tests on Alpine if musl-c debuginfo is available because `.debug_frame` would be provided by musl-dbg package. This change passed all of serviceability/sa jtreg tests on following environment: - Fedora 44 x86_64 - Alpine Linux 3.23 (with musl-dbg) x86_64 - Rocky Linux 9.5 aarch64 --------- - [x] I confirm that I make this contribution in accordance with the [OpenJDK Interim AI Policy](https://openjdk.org/legal/ai). ------------- Commit messages: - 8390621: Use .debug_frame if .eh_frame is not enough to unwind Changes: https://git.openjdk.org/jdk/pull/33375/files Webrev: https://webrevs.openjdk.org/?repo=jdk&pr=33375&range=00 Issue: https://bugs.openjdk.org/browse/JDK-8390621 Stats: 114 lines in 10 files changed: 71 ins; 9 del; 34 mod Patch: https://git.openjdk.org/jdk/pull/33375.diff Fetch: git fetch https://git.openjdk.org/jdk.git pull/33375/head:pull/33375 PR: https://git.openjdk.org/jdk/pull/33375
