On Thu, 4 Mar 2021, Tiezhu Yang wrote: > This is a known bug [2] with Clang, as Simon Atanasyan said, > "There is no plan on support O32 for MIPS64 due to lack of > resources". Huh? Is that a joke? From the o32 psABI's point of view a MIPS64 CPU is exactly the same as a MIPS32 one (for whatever ISA revision), so there's nothing to support there really other than the CPU/ISA name. As much as I dislike all the hacks the Clang community seems to come up with for the shortcomings of their tool there has to be a saner workaround available rather than forcibly disabling support for the o32 ABI with CONFIG_64BIT kernels, but the report is missing the compiler invocation line triggering the issue (V=1 perhaps?), which should be included with any commit description anyway, so I can't suggest anything based on the limited information provided. Maciej