RFR: 8252997: Null-proofing for linker_md.c [v2]

[Serguei Spitsyn]

On Fri, 2 Oct 2020 09:48:48 GMT, Adam Farley <afarley at openjdk.org> wrote:

>> In the platform-specific implementations of linker_md.c, we see the dll_build_name methods begin with a call to
>> jvmtiAllocate.
>> We then appear to rush ahead and try to use that variable without checking for a null.
>> 
>> I propose moving the null check to the point *before* we try to use that variable, to avoid any possible SEGV.
>> 
>> Bug link: https://bugs.openjdk.java.net/browse/JDK-8252997
>
> Adam Farley has refreshed the contents of this pull request, and previous commits have been removed. The incremental
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Marked as reviewed by sspitsyn (Reviewer).

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PR: https://git.openjdk.java.net/jdk/pull/246