RFR: 8143558 evaluate if thr_sigsetmask can be removed from hotspot (solaris) codebase

[Sebastian Sickelmann]

Hi,

as a side-effect of https://bugs.openjdk.java.net/browse/JDK-8136978 i
created
a Enhancement in JBS

https://bugs.openjdk.java.net/browse/JDK-8143558

As David commented in JBS it is possible to replace the usage of
thr_sigsetmask with pthread-sigmask.

Maybe the change is not worth anything on its own. I hope that we can
find more duplicated code that can be removed easier.

I have create patch that replaces all calls to thr_sigsetmask:

http://cr.openjdk.java.net/~sebastian/8143558/webrev.02/

Unfortunately (Lacking a solaris environment) I am not able to compile
check / jtreg-test this change.

--
Sebastian