[RFC 0/5] Tracing backends

Stefan Hajnoczi
2010-05-22T21:08:37Z

The following patches against qemu.git allow static trace events to be declared
in QEMU. Trace events use a lightweight syntax and are independent of the
backend tracing system (e.g. LTTng UST).

Supported backends are:
* my trivial tracer ("simple")
* LTTng Userspace Tracer ("ust")
* no tracer ("nop", the default)

The ./configure option to choose a backend is --trace-backend=.

Main point of this patchset: adding new trace events is easy and we can switch
between backends without modifying the code.

Prerna: Would you like to add your tracing system as a backend? This would be
similar to my patches to add "simple" and "ust" backend support.

Jan: Adding kernel marker backend support should be straightforward if you are
interested.

These patches are also available at: