On Fri, Mar 14, 2025 at 05:01:21PM +0100, Andreas Beckmann wrote: > Package: pahole > Version: 1.29-2 > Severity: important > Control: affects -1 + src:nvidia-open-gpu-kernel-modules
Hi Andres, Thank you for your very detailed report, it was very easy to forward to the upstream devs and get the right eyes on it. For the first problem, there is a candidate patch [0]. > Second problem: > > dwarf_expr: unhandled 0x12 DW_OP_ operation > Unsupported DW_TAG_reference_type(0x10): type: 0x28172 > Error while encoding BTF. > > pahole reports an error, but nevertheless exits with 0. > Is the resulting .ko file still OK? The patch above fixes also bad behavior and indeed the tool would return an error and an appropriate status. > What is causing these "unsupported" messages? > Is it possible to avoid them by adding some appropriate options? > I found https://github.com/NVIDIA/open-gpu-kernel-modules/issues/756 > which attempts to add --lang_exclude=c++ to the command line, but that > didn't make any difference for me. I think you may find this other message interesting [1]. > Andreas Dom [0] https://lore.kernel.org/dwarves/[email protected]/T/#u [1] https://lore.kernel.org/dwarves/Z-JzFrXaopQCYd6h@localhost/T/#m7d3a6baed86ac6def78ee45a0d554d4487f84305 -- rsa4096: 3B10 0CA1 8674 ACBA B4FE FCD2 CE5B CF17 9960 DE13 ed25519: FFB4 0CC3 7F2E 091D F7DA 356E CC79 2832 ED38 CB05
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