RFR: 8283488: AArch64: Improve stack trace accuracy in hs log

[Andrew Haley]

On Wed, 23 Mar 2022 02:49:18 GMT, Denghui Dong <ddong at openjdk.org> wrote:

> > Please bring this to discussion early, maybe evenbefore you have a complete working solution.
> 
> Sure. I found that there was a previous discussion on a similar issue that also mentioned libunwind, but seems no further progress.
> 
> https://mail.openjdk.java.net/pipermail/hotspot-dev/2020-April/041315.html

Thanks! I have never seen that before. I'd have a good look at GCC's unwinder library, because if it 's suitable we won't need an other library. I'd rather not add new dependencies.

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PR: https://git.openjdk.java.net/jdk/pull/7900