RFR: 8272586: emit abstract machine code in hs-err logs

[Roman Kennke]

On Thu, 9 Sep 2021 16:56:57 GMT, Doug Simon <dnsimon at openjdk.org> wrote:

> This enhances hs-err logs to:
> * Show the [abstract machine code](https://bugs.openjdk.java.net/browse/JDK-8213084) of the crashing frame if a disassembler is not installed.
> * Show machine code for the top frames on the native stack.
> 
> An interpreter or stub frame is only shown if it is the crashing frame.
> 
> A sample of the enhanced hs-err log can be seen [here](https://bugs.openjdk.java.net/secure/attachment/96664/hs_err_pid7179.log).

This is going to be very useful! I used to copy+paste the instructions hex block into disassembler.io, having relevant assembly in hs_err will make debugging such situations much easier! This is not a review, just a big thumbs-up on the feature as such! :-) Thanks, Roman

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PR: https://git.openjdk.java.net/jdk/pull/5446