tree 5d83bb61233a7f8aa7aaa6a7c81db93b40470282
parent 1e2cf2bc455622f9e0903a360cdaf6b89ec949a2
author Prerna Saxena <prerna@linux.vnet.ibm.com> 1279009592 +0100
committer Anthony Liguori <aliguori@us.ibm.com> 1284067364 -0500

trace: Specify trace file name

Allow users to specify a file for trace-outputs at configuration.
Also, allow trace files to be annotated by <pid> so each qemu instance has
unique traces.

The trace file name can be passed as a config option:
--trace-file=/path/to/file
(Default: trace )
At runtime, the pid of the qemu process is appended to the filename so
that mutiple qemu instances do not have overlapping logs.

Eg : trace-1234 for qemu launched with pid 1234.

I have yet to test this on windows. getpid() is used at many places
in code(including vnc.c), so I'm hoping this would be okay too.

Edited-by: Stefan Hajnoczi <stefanha@linux.vnet.ibm.com>
Signed-off-by: Stefan Hajnoczi <stefanha@linux.vnet.ibm.com>