[Xen-devel] [PATCH][TOOLS] xentrace: Don't append trace on existing file

["Christoph Egger" <Christoph.Egger@xxxxxxx>]

Hi!

When you run "xentrace -e <mask> trace.output" the first time, all is fine.
When you run it a second time, then the data is appended which makes you
reading old data with xentrace_format and you interprete it as new data.
This usually happens when you automated tracing guests with xentrace and 
xentrace_format with a script.

Therefore, attached patch makes xentrace to truncate the file to zero bytes
before writing any data.

Signed-off-by: Christoph Egger <Christoph.Egger@xxxxxxx>


-- 
AMD Saxony, Dresden, Germany
Operating System Research Center

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tools_xentrace.diff
Description: Text document

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