在 7/9/2017 5:57 PM, Wang Dong 写道:
Hi,
I am new to QEMU. But I got some problem so that I want to figure it out.
So I try to debug qemu to see what happened.
And I found trace framework. I think this will help me understand the
point.
So I compiled qemu with option:
## *--enable-trace-backends=simple*
And did as the docs/tracing.txt tell. But when I execute the example
command in it, nothing just happens.
*./scripts/simpletrace.py trace-events-all trace-xxxxxx(my trace file
produced by qemu)
I am not sure what happened. Just ask this.
Any clue will be appreciated. Thanks in advance.
*
Did you set *trace-event*? I've encountered this issue in the past :)
(qemu) help trace-event
trace-event name on|off -- changes status of a specific trace event
(qemu) info trace-events
--
Thanks
-Xie
