Python prototype to map trace events to code via debug info
You will need babeltrace with python bindings installed, as well as the following python packages:
The processed trace needs to be of userspace domain, with instruction pointer context enabled. This context can be enabled with the following command prior to the start of the trace:
$ lttng add-context -u -t ip
The traced binary also has to be compiled in debug mode if you want to
have source file/function information, extracted from the DWARF
info. It is also necessary to LD_PRELOAD the dynamic linking tracing
helper, liblttng-ust-dl.so, which you can easily do using the env
command, as such:
$ env LD_PRELOAD="liblttng-ust-dl.so" /path/to/executable
Once your trace has been recorded, you can perform the analysis as follows:
$ ./debuginfo /path/to/trace