RFR: 8148361: Need to disable the thread local storage compiler option for ios

[Magnus Ihse Bursie]

On 2016-01-27 13:42, Gary Adams wrote:
> When the sync with jdk9 b102 was pulled into mobile/dev repos a new
> feature for thread local storage was over looked. Most modern compilers
> include support for thread local declaration, but this feature is 
> intentionally
> not supported by Apple's clang compiler.
>
> This change declares USE_LIBRARY_BASED_TLS_ONLY along with other
> TARGET_OS_IPHONE declarations in the hotspot globalDefinitions_gcc.hpp 
> file.
>
>   Issue: https://bugs.openjdk.java.net/browse/JDK-8148361
>   Webrev: http://cr.openjdk.java.net/~gadams/8148361/webrev.00/

 From my perspective it looks good, but since you're actually modifying 
the hotspot source code and not make files, someone from the Hotspot 
team should look at this as well.

/Magnus