RFR: JDK-8259843: initialize dli_fname array before calling dll_address_to_library_name

[Lutz Schmidt]

On Tue, 19 Jan 2021 12:08:05 GMT, Matthias Baesken <mbaesken at openjdk.org> wrote:

> On some platforms like bsd/mac, we call dll_address_to_library_name with a buffer parameter (e.g. char dli_fname[MAXPATHLEN]; ) that has uninitialized content.
> This is usually no problem because dll_address_to_library_name fills the array, but on some codepaths it seems not to be the case.
> 
> See also this related sonar issue :
> https://sonarcloud.io/project/issues?id=jdk&open=AXaE0drk8L9hkQskGEXZ&resolved=false&types=BUG

The changes look good to me. 
linuxppcle build error unrelated. Addressed by JDK-8259978.

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Marked as reviewed by lucy (Reviewer).

PR: https://git.openjdk.java.net/jdk/pull/2144