Messages in this thread | | | From | Qais Yousef <> | Subject | [PATCH v2 bpf-next 0/2] Allow attaching to bare tracepoints | Date | Sat, 16 Jan 2021 18:21:31 +0000 |
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Changes in v2: * Fix compilation error. * Make the new test use write() instead of read()
Add some missing glue logic to teach bpf about bare tracepoints - tracepoints without any trace event associated with them.
Bare tracepoints are declare with DECLARE_TRACE(). Full tracepoints are declare with TRACE_EVENT().
BPF can attach to these tracepoints as RAW_TRACEPOINT() only as there're no events in tracefs created with them.
Qais Yousef (2): trace: bpf: Allow bpf to attach to bare tracepoints selftests: bpf: Add a new test for bare tracepoints
Documentation/bpf/bpf_design_QA.rst | 6 +++++ include/trace/bpf_probe.h | 12 +++++++-- .../bpf/bpf_testmod/bpf_testmod-events.h | 6 +++++ .../selftests/bpf/bpf_testmod/bpf_testmod.c | 21 ++++++++++++++- .../selftests/bpf/bpf_testmod/bpf_testmod.h | 6 +++++ .../selftests/bpf/prog_tests/module_attach.c | 27 +++++++++++++++++++ .../selftests/bpf/progs/test_module_attach.c | 10 +++++++ 7 files changed, 85 insertions(+), 3 deletions(-)
-- 2.25.1
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