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path: root/include/trace/events/bpf_test_run.h
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2024-03-28bpf: add bpf_modify_return_test_tp() kfunc triggering tracepointAndrii Nakryiko1-0/+17
Add a simple bpf_modify_return_test_tp() kfunc, available to all program types, that is useful for various testing and benchmarking scenarios, as it allows to trigger most tracing BPF program types from BPF side, allowing to do complex testing and benchmarking scenarios. It is also attachable to for fmod_ret programs, making it a good and simple way to trigger fmod_ret program under test/benchmark. Signed-off-by: Andrii Nakryiko <[email protected]> Link: https://lore.kernel.org/r/[email protected] Signed-off-by: Alexei Starovoitov <[email protected]>
2019-04-26selftests: bpf: test writable buffers in raw tpsMatt Mullins1-0/+50
This tests that: * a BPF_PROG_TYPE_RAW_TRACEPOINT_WRITABLE cannot be attached if it uses either: * a variable offset to the tracepoint buffer, or * an offset beyond the size of the tracepoint buffer * a tracer can modify the buffer provided when attached to a writable tracepoint in bpf_prog_test_run Signed-off-by: Matt Mullins <[email protected]> Acked-by: Yonghong Song <[email protected]> Signed-off-by: Alexei Starovoitov <[email protected]>