RFR: 8293201: Library detection in runtime/ErrorHandling/TestDwarf.java fails on some systems

[Aleksey Shipilev]

On Thu, 1 Sep 2022 08:32:17 GMT, Aleksey Shipilev <shade at openjdk.org> wrote:

> When building x86_32 on Ubuntu 22.04, the test fails to find the library name in `"C  [libc.so.6+0x85ff1]"`, because the regexp seems too broad. Since we are matching with the unanchored regexp, we can just try and find the smaller prefix, which still matches the library name.
> 
> But the original regexp seems odd to begin with. Why do we match `0x` twice? Why do we have the escaped `\[`, followed by trailing `]` (the last one in the patch now), which is not escaped? This is a question for you, @chhagedorn :)
> 
> Additional testing:
>  - [x] Ubuntu 22.04 x86_32 build

GHA is good, I am integrating.

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PR: https://git.openjdk.org/jdk/pull/10113