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hey! Do you know if anyone is working on getting bpftrace to use BTF yet? Looks like one of the final chunks landed in Linux 5.2
by _wmd 7y ago
hey! Do you know if anyone is working on getting bpftrace to use BTF yet? Looks like one of the final chunks landed in Linux 5.2
- leodido 7y agoAFAIK not.
- dustfinger 7y agoSee Bpftrace for Linux 2018: > https://news.ycombinator.com/item?id=18168137 https://news.ycombinator.com/item?id=18168137 pzakah asks: > You've mentioned that we do have BTF now in Linux 4.18. I've tried to find if it was leveraged in bpftrace, but it looks like it isn't yet. Brendan responds: > That's the old repo (we should add a note to it pointing people to https://github.com/iovisor/bpftrace https://github.com/iovisor/bpftrace instead!) Alastair added struct support for kprobes yesterday, based on the functionality in bcc (which bpftrace uses). That was the final missing piece, and why I'm posting about it now. See the last example here: https://github.com/iovisor/bpftrace/blob/ma https://github.com/iovisor/bpftrace/blob/ma --- .... I took a look and according to the last example mentioned they have not added full struct support yet.
- mmarchini 7y agoYes, we have an open Pull Request for that: https://github.com/iovisor/bpftrace/pull/734 https://github.com/iovisor/bpftrace/pull/734