I am building Rust-for-Linux at commit e9b9c0ef1e7040a3c3dc2232d5fd64999eba61a0 with "make CC=clang-11" and the built kernel fails to load rust_example.ko with the following error:
[ 1653.507602] module: rust_example: Unknown rela relocation: 9 Looking at elf.h shows this relocation is type GOTPCREL: #define R_X86_64_GOTPCREL 9 /* 32 bit signed PC relative offset to GOT */ Sure enough rust_example.ko contains a few of these entries, and no other kernel module does: 000000000a51 008800000009 R_X86_64_GOTPCREL 0000000000000000 _RNvXsb_NtCshGpAVYOtgW - 4 000000000f15 008700000009 R_X86_64_GOTPCREL 0000000000000000 _RNvXs2_NtNtNtCshGpAVY - 4 000000001307 005300000009 R_X86_64_GOTPCREL 0000000000000000 _RNvXs6_NtNtNtCshGpAVY - 4 I assume that this is an issue with my rust toolchain, however I'm reporting it here since it might be helpful to update documentation or (unlikely) add support for this relocation type in the kernel. Host/environment info: $ uname -a Linux pop-os 5.8.0-7642-generic #47~1614007149~20.04~82fb226-Ubuntu SMP Tue Feb 23 02:56:27 UTC $ rustup show active-toolchain nightly-x86_64-unknown-linux-gnu (default) $ rustc --version rustc 1.52.0-nightly (61edfd591 2021-03-20) $ clang-11 --version Ubuntu clang version 11.0.0-2~ubuntu20.04.1 Target: x86_64-pc-linux-gnu Thread model: posix InstalledDir: /usr/bin -- Respectfully, Josh Abraham
