JDK10/RFR(M): 8182279: Add HW feature detection support for SPARC Core C5 (on Solaris).

[Patric Hedlin]

Dear all,

I would like to ask for help to review the following change/update:

Issue:  https://bugs.openjdk.java.net/browse/JDK-8182279

Webrev: http://cr.openjdk.java.net/~phedlin/tr8182279/

Note 1. SPARC Core C5 disclosure has been approved for reviewing on this 
list(s).
Note 2. SPARC Core C5 and M8 servers are currently not available to 
regular testing.
Note 3. Core C5 was previously named Core S5.


8182279: Add HW feature detection support for SPARC Core C5 (on Solaris).

     Updating SPARC feature/capability detection to include support for 
the SPARC Core C5.


Caveat:

     This update will introduce some redundancies into the code base, 
features and definitions
     currently not used, addressed by subsequent bug or feature 
updates/patches. Fujitsu HW is
     treated very conservatively.


Testing:

     Mostly tested on JDK9 (jtreg/RBT/hotspot/tier0-comp), RBT on non-M8 
only.
     Testing on JDK10 (jtreg/RBT/hotspot/precheckin-comp), RBT on non-M8 
only.


Best regards,
Patric