RFR: 8371194: serviceability/sa/TestJhsdbJstackMixedWithXComp.java failing [v3]

[Chris Plummer]

On Thu, 20 Nov 2025 01:25:45 GMT, Yasumasa Suenaga <ysuenaga at openjdk.org> wrote:

>> We've fixed mixed mode jstack for the debuggee running with `-Xcomp` in [JDK-8370176](https://bugs.openjdk.org/browse/JDK-8370176), but it was not enough. We need to handle like unifying `CFrame` and `Frame` in stack unwinding as possible, and need to change how to get caller SP/FP from stack.
>> 
>> This PR works fine on both Linux AMD64 and Linux AArch64. All of `hotspot/jtreg/serviceability/sa` tests have been passed on both platforms.
>> 
>> Big thanks to @pchilano for your help!
>
> Yasumasa Suenaga has updated the pull request incrementally with one additional commit since the last revision:
> 
>   Fix for macOS

Overall this looks good. I made one very minor request for a comment fix. Thanks for all your efforts here1

src/jdk.hotspot.agent/share/classes/sun/jvm/hotspot/debugger/bsd/BsdDebuggerLocal.java line 80:

> 78:     private BsdCDebugger cdbg;
> 79: 
> 80:     // loadObjectList are filled by attach0 method

Suggestion:

    // loadObjectList is filled by attach0 method

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Marked as reviewed by cjplummer (Reviewer).

PR Review: https://git.openjdk.org/jdk/pull/28284#pullrequestreview-3527245704
PR Review Comment: https://git.openjdk.org/jdk/pull/28284#discussion_r2578883005