To include the different LTTng tools in your system, add the following to your conf/local.conf file:

IMAGE_INSTALL_append = " lttng-tools lttng-modules lttng-ust" 

They are also part of the tools-profile image feature, so you can also add them with the following:

EXTRA_IMAGE_FEATURES += "tools-profile" 

These are also included in the -sdk images.

The default Wandboard Linux kernel is already configured to use LTTng, but other platforms might need to enable CONFIG_TRACEPOINTS.

The LTTng command-line tool is the main user interface to LTTng. It can be used to trace both the Linux kernel-using the kernel tracing interfaces we have seen in previous recipes—as well as instrumented user space applications.