RFR(M): JDK-8163011: AArch64: NMT detail stack trace cleanup

[Andrew Dinn]

On 04/09/17 14:49, dmitry.samersov wrote:
>> Yes, but NMT also works (and is meant to work) on product builds where
>> the required symbols are not available.
> 
> 1. This patch doesn't affect product build. On product build we have all
> NMT frames inlined and don't need to skip anything.
> 
> I'll put these changes under #ifndef PRODUCT to make it clear visible.

Ok, thank you for correcting my misunderstanding here.

> 2. NMT uses .symtab section and these symbols also available in release
> build by default, unless someone manually strip libjvm.so

Hmm, apologies once again if I have misunderstood how things work in
release builds. I have been using NMT in the last 2 weeks, albeit under
jdk8, and symbols were *not* displayed when running my local product
build (the traces simply displayed hex addresses). I configured the
build with

  --with-debug-level=release --disable-zip-debug-info

Am I missing something obvious to account for the lack of symbols in my
trace output?

regards,


Andrew Dinn
-----------
Senior Principal Software Engineer
Red Hat UK Ltd
Registered in England and Wales under Company Registration No. 03798903
Directors: Michael Cunningham, Michael ("Mike") O'Neill, Eric Shander