Hi all,
The following patchset includes a simple implementation for qemu
tracing. This introduces a framework for :
i) Internal buffers for QEMU, and API for logging traces therein.
ii) Tracepoint framework that logs traces to the buffer and also
interprets already logged traces.
iii) Monitor commands to display logged traces in tracepoint-specific
formats, and also for enabling/disabling tracepoints individually.
This is *work in progress*. There are known issues that I'm chasing,
which includes segfault that happens while transitioning from monitor to
guest with tracing enabled. (Will appreciate any pointers if I'm missing
the obvious somewhere :-))
Stefan,
Thanks for your ideas on tracing ! I'm just posting out a rough cut of
whatever I have ready ; We can take the best from both your patches and
mine and have something running for qemu tracing. I'll take care of
merging pieces together.
Looking forward to suggestions..
--
Prerna Saxena
Linux Technology Centre,
IBM Systems and Technology Lab,
Bangalore, India
