Hi Jiri On 12/29/20 18:34, Jiri Olsa wrote: > On Tue, Dec 29, 2020 at 03:13:52PM +0000, Qais Yousef wrote: > > Hi > > > > When I enable CONFIG_DEBUG_INFO_BTF I get the following error in the BTFIDS > > stage > > > > FAILED unresolved symbol udp6_sock > > > > I cross compile for arm64. My .config is attached. > > > > I managed to reproduce the problem on v5.9 and v5.10. Plus 5.11-rc1. > > > > Have you seen this before? I couldn't find a specific report about this > > problem. > > > > Let me know if you need more info. > > hi, > this looks like symptom of the gcc DWARF bug we were > dealing with recently: > > https://gcc.gnu.org/bugzilla/show_bug.cgi?id=97060 > https://lore.kernel.org/lkml/CAE1WUT75gu9G62Q9uAALGN6vLX=o7vZ9uhqtVWnbUV81DgmFPw@xxxxxxxxxxxxxx/#r > > what pahole/gcc version are you using? I'm on gcc 9.3.0 aarch64-linux-gnu-gcc (Ubuntu 9.3.0-17ubuntu1~20.04) 9.3.0 I was on pahole v1.17. I moved to v1.19 but I still see the same problem. Thanks -- Qais Yousef > > we fixed pahole (v1.19) to workaround the issue and AFAIK > there's already gcc fix as well
