[PROF-9088][prototype] eBPF stack unwinding #352
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r1viollet
commented
Dec 11, 2023
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| for (size_t k = 0; k < pevent_hdr->bpf_pes.size(); ++k) { | ||
| pevent_hdr->bpf_pes[k].link = | ||
| bpf_program__attach_perf_event(skel->progs.process_sample, pevent_hdr->bpf_pes[k].fd); |
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This creates the link between the perf event file descriptor and the bpf program.
r1viollet
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What does this PR do?
Capture perf events and unwind in kernel space.
Motivation
Removing stack copies.
Additional Notes
There is much more work left!
How to test the change?
The native profiler requires elevated permissions to use the eBPF capability