static tracepoints - sdt.h vs. lttng

static tracepoints - sdt.h vs. lttng

[Milian Wolff]

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Hey all,

perf now has support for sdt.h static userland trace points, which is really 
great. But I wonder, where can I find documentation on using it for custom 
data types, like UTF16 strings, or custom structs? The Kernel seems to have 
some custom API, can I leverage that also in userland?

The LTTNG-UST trace point API is much clearer in that regard:

http://lttng.org/man/3/lttng-ust/v2.7/

Which clearly supports arbitrary data types. But that is not supported by 
perf, right?

How do other projects handle this?

Thanks
-- 
Milian Wolff | milian.wolff@kdab.com | Software Engineer
KDAB (Deutschland) GmbH&Co KG, a KDAB Group company
Tel: +49-30-521325470
KDAB - The Qt Experts

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