RFR 8152065: TraceBytecodes breaks the interpreter expression stack

[Jiangli Zhou]

Hi Coleen,

This looks like a safe fix, but I probably can’t serve as a very good reviewer for this area. I have a question. Would ‘JRT_LEAF’ work also in this case?

Thanks,
Jiangli

> On Mar 17, 2016, at 2:39 PM, Coleen Phillimore <coleen.phillimore at oracle.com> wrote:
> 
> Summary: Move trace_bytecode to InterpreterRuntime and make trace_bytecode an IRT_LEAF so that safepoints are not allowed.
> 
> open webrev at http://cr.openjdk.java.net/~coleenp/8152065.01/webrev
> bug link https://bugs.openjdk.java.net/browse/JDK-8152065
> 
> Tested with test program for bug https://bugs.openjdk.java.net/browse/JDK-8151256 and runThese with -XX:+TraceBytecodes for a few minutes (output file got too big).
> 
> Thanks,
> Coleen