On Sun, Mar 01, 2020 at 12:10:42AM -0800, Andrii Nakryiko wrote: > Fix issue with not preserving btf_trace_##call structs when compiled under > Clang. Additionally, capture raw tracepoint arguments in raw_tp_##call > structs, directly usable from BPF programs. Convert runqslower to use those > for proof of concept and to simplify code further. Not only folks compile kernel with clang they use the latest BPF/BTF features with it. This is very nice to see! I've applied 1st patch to make clang compiled kernel emit proper BTF. As far as patch 2 I'm not sure about 'raw_tp_' prefix. tp_btf type of progs can use the same structs. So I think there could be a better name. Also bpftool can generate them as well while emitting vmlinux.h. I think that will avoid adding few kilobytes to vmlinux BTF that kernel isn't going to use atm.
