Various tools that operate on the qtrace instruction trace format. If running on a ppc64 system, install the binutils development libraries. On Ubuntu:

sudo apt-get install binutils-dev

To work with ppc64 traces on another architecture, on Ubuntu you can install the multiarch version of the libraries:

sudo apt-get install binutils-multiarch-dev

To build:

./bootstrap.sh
./configure
make

Operates similar to strace. It attaches to a running process (via -p) or executes a new process, and uses single stepping to create a objdump style ascii disassembly or a qtrace binary instruction trace. It doesn't support multiple threads or processes yet.