[riscv-port-jdk17u:riscv-port] RFR: 8294679: RISC-V: Misc crash dump improvements

[Fei Yang]

On Sat, 22 Apr 2023 12:03:35 GMT, Gui Cao <gcao at openjdk.org> wrote:

> Please review this backport to riscv-port-jdk17u.
> Backport of [JDK-8294679](https://bugs.openjdk.org/browse/JDK-8294679). Applies cleanly.
> 
> Testing:
> 
> Tier1-3 passed without new failure on unmacthed (release).

OK. And I see related issue https://bugs.openjdk.org/browse/JDK-8294160 has already been backported to 17u upstream.

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Marked as reviewed by fyang (Lead).

PR Review: https://git.openjdk.org/riscv-port-jdk17u/pull/47#pullrequestreview-1396812479