RFR(xs): 8171408: [aix] TOC overflow when linking the gtest libjvm.so

[Thomas Stüfe]

Hi all,

please take a look at this small fix. In short, on AIX when linking the
gtest version of libjvm.so, the TOC overflows.

So the gtest libjvm.so must be linked with -bbigtoc, in contrast to the
regular libjvm.so, which has no problems and can keep using a small TOC.

Also, I compile all gtest objects with -qpic=large. Note that this only
affects the gtest objects. The regular objects - which the gtest libjvm.so
shares with the regular libjvm.so - I left at -qpic[=small]. This means we
pay a bit of a performance overhead in the gtest libjvm.so but leave the
regular libjvm.so at its optimal linker settings.

Issue:
https://bugs.openjdk.java.net/browse/JDK-8171408

Webrev:
http://cr.openjdk.java.net/~stuefe/webrevs/8171408-aix-TOC-overflow-when-linking-the-gtest-libjvm/webrev.00/

(Hope the webrev link works, the webserver is still down).

Kind Regards, Thomas