Use bpf_link for perf_attach programs (Kprobe/Uprobe/Tracepoint etc...) #522
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Signed-off-by: Dave Tucker <dave@dtucker.co.uk>
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Signed-off-by: Dave Tucker <dave@dtucker.co.uk>
This adds support for bpf_link to PerfEvent, Tracepoint, Kprobe and Uprobe programs. Signed-off-by: Dave Tucker <dave@dtucker.co.uk>
Just use the Debug formatter vs. printing a message for each probe. Signed-off-by: Dave Tucker <dave@dtucker.co.uk>
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This adds support for using bpf_link to perf_attach programs.
In addition, it also makes the feature detection a lazy-static, which while not strictly necessary should allow applications to do feature detection only once when using Aya vs. every time a
Bpfobject is created.This also allows for features to be used in other parts of the codebase that might require feature discovery to have happened already - I think I ran into this in the USDT probe PR which is why I implemented this in the first place!