On 12/18/18 8:18 AM, Edward Cree wrote: > On 17/12/18 22:45, Yonghong Song wrote: >> Hi, >> >> As many of you already knew, latest bpf-next/net-next >> kernel added supports for func_info and line_info. > Is there a proper spec yet, against which other implementations can > be developed? Or do folks still have to RTFS and reverse-engineer > the semantics if they want to support this in tools other than > LLVM and pahole?
Ed, We are working on this and will send a patch as soon as it is ready. I totally understand the the spec is very important now. Totally agree with your assessment below. Thanks, Yonghong > Because IMHO writing a spec should be a higher priority than > anything else in BTF development; and every patch series that > changes the format should come with a patch to update the spec. > We're developing a format here, and acting like we don't need to > do things properly because we 'own' both ends — which is not > conducive to building an open ecosystem around it. > > -Ed >
