>> - #1 = Ubuntu HWE kernels aren't being compiled with BTF support, something >> that is critical for eBPF CO-RE, turning an eBPF object portable among >> different kernel versions. >> >> https://github.com/aquasecurity/btfhub/issues/9 >> https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1926330 >> https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1949286 > > Hi Rafael, > glad to "see" you. > It seems pahole is only a build time dependency to enable the kernel > to be able to build this dwarf info. > If it is indeed build-time only then it does not need to pass the MIR process. > As long as the kernel team is happy with using it at build time to > generate this extra data you should be fine. >
Hey Christian! Thanks for the reply. Yep, it turns out that kernel team was quicker and I was the one that missed the SRUs. They've done better, preparing pahole 1.21 as SRU for Focal and Bionic: dwarves-dfsg | 1.21-0ubuntu1~18.04 | bionic-proposed/universe | source dwarves-dfsg | 1.21-0ubuntu1~20.04 | focal-updates/universe | source dwarves-dfsg | 1.21-0ubuntu1~21.04 | hirsute-updates/universe | source dwarves-dfsg | 1.21-0ubuntu1 | impish/universe | source dwarves-dfsg | 1.21-0ubuntu1 | jammy/universe | source xnox told me he is working in having BTF enabled for 5.4 and 5.8 kernels by EOY (which is very nice for us). Thanks a lot everyone, sorry for the noise if any, hopefully it will also help others dealing with eBPF. I'll close the bugs I created. Cheers!
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