On Mon, 11 Mar 2019 18:45:24 -0700 Alexei Starovoitov alexei.starovoitov@gmail.com wrote:
what you're asking for we already have. It's called BTF.
Cool.
pahole takes vmlinux dwarf and convert it into ~1Mbyte of BTF that includes all kernel types. With gzip it can be compressed further if necessary. We also have a prototype to generate all_vmlinux_types.h from BTF. But it's not a substitute for kernel headers. We've had a long discussion during last LPC regarding this: http://vger.kernel.org/lpc-bpf2018.html#session-2 tldr: many tracing use cases will be solved with BTF, but kernel headers are here to stay.
Is this work a result of that session? (I was only able to attend part of the BPF sessions due to conflicts). I guess I should watch the videos.
-- Steve