Re: [Libunwind-devel] libunwind x86-64 optimisations?

[Arun Sharma]

On Mon, Jul 6, 2009 at 4:24 AM, Lassi Tuura <address@hidden> wrote:

1) C++ compatibility clean-up

http://cmssw.cvs.cern.ch/cgi-bin/cmssw.cgi/COMP/CMSDIST/libunwind-cleanup.patch?revision=1.1&view=markup

I've applied this patch.

 

2) Various performance optimisations

http://cmssw.cvs.cern.ch/cgi-bin/cmssw.cgi/COMP/CMSDIST/libunwind-optimise.patch?revision=1.5&view=markup

Were you able to test with libatomic-ops installed?

For the deadlock problems, one solution is to implement your own dl_iterate_phdr which is lock free and async signal safe. This might require minor changes to your libc.

 -Arun