Sorry for the time it has taken me to reply. Looking at what you have said though Renato, I would think that you are perhaps using LLVMs libunwind? I have been using the libunwind packaged in Ubuntu 14.04 as that is the target platform currently, but I believe it should (more or less), be the same as https://github.com/pathscale/libunwind/tree/pathscale/ . In addition to that you will want to ensure the env. var UNW_ARM_UNWIND_METHOD=4.