RFR: 8234741: enhance os::get_core_path on macOS

[David Holmes]

On 25/11/2019 11:44 pm, Baesken, Matthias wrote:
> Hello,
> 
> Currently the macOS implementation of os::get_core_path just displays the default core file location.
> However it does not handle/show other locations set by the sysctl parameter "kern.corefile" . This is enhanced by this change .
> I also take care of  handling %P  which is used a lot for  the  pid-placeholder on macOS in the  "kern.corefile"  parameter .
> 
> 
> ( additionally  the change  contains a one-liner adjustment in src/java.desktop/macosx/native/libawt_lwawt/awt/AWTView.h  to be able to compile  again  on older macOs versions)

That issue is being discussed elsewhere by the client folk and should 
not be part of this change.

David

> 
> Bug / webrev :
> 
> https://bugs.openjdk.java.net/browse/JDK-8234741
> 
> http://cr.openjdk.java.net/~mbaesken/webrevs/8234741.0/
> 
> Thanks, Matthias
>