RFR 8022183: GCC 4.56 changes default setting for omit-frame-pointer which breaks hotspot stack walking

[harold seigel]

Hi,

Please review this small fix for bug 8022183.  This fix is needed in 
order to build hotspot on 32-bit Linux with newer versions of gcc. The 
fix explicitly specifies "-fno-omit-frame-pointer" in the makefile for 
32-bit Linux.

The fix was tested using NMT with -version and with GCBasher.

Open webrev at: http://cr.openjdk.java.net/~hseigel/bug_8022183/ 
<http://cr.openjdk.java.net/%7Ehseigel/bug_8022183/>

bug: http://bugs.sun.com/view_bug.do?bug_id=8022183

JBS bug: https://jbs.oracle.com/bugs/browse/JDK-8022183

Thanks, Harold