RFR: 8308094: Add a compilation timeout flag to catch long running compilations [v8]

[Manuel Hässig]

On Mon, 18 Aug 2025 21:41:11 GMT, Dean Long <dlong at openjdk.org> wrote:

>> Maybe @dean-long can shed some light on this?
>
> I'm not an expert on resource areas, but using them in a signal handler seems questionable to me.  See also JDK-8349578.  I don't even think malloc allocations are safe in a signal handler.  But since we are crashing, it probably doesn't matter.  In this case, I would either add the ResourceMark (too avoid a "missing ResourceMark" assert), or use an alternative method for printing the name and signature.  Note that the hs_err log file should contain the name of the method being compiled, so having it here in this assert is useful but not critical.

I just realized that `name_and_sig_as_C_string()` can also take a buffer and size as argument and will use that with a static buffer instead.

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PR Review Comment: https://git.openjdk.org/jdk/pull/26023#discussion_r2285474664