Hello, I have a custom tracing solution that I'm interested in porting to LTTng. It works as follows:
1. Input is a whitelist of mangled names taken from a target library, libfoo.so. 2. For each name, generate a logging shim (example <https://www.linuxjournal.com/article/7795>) for the corresponding call. 3. Compile all the logging shims into a shared library, libshim.so. 4. Trace any application using libfoo by running it as LD_PRELOAD=libshim.so ./fooapp There are two nice things about this approach that I would like to preserve: - The shim developer only needs to provide the whitelist and a bit of extra annotation. From there, the shim can be be authored using a boilerplate generator. - The app developer doesn't have to do anything other than pass the LD_PRELOAD flag. The downside is that the only tracepoints are those corresponding to the whitelist, but I'm fine with that. Can this kind of "hands-free" developer experience be supported by LTTng? Thanks! ~br
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