Error when loading Linux kernel modules

[MikeWalrus]

When loading any Linux kernel module (with e.g. gimli's addr2line), the parser gives errors like this:
UnknownRangeListsEntry(DwRle(224)). Reproducible on ArchLinux and Ubuntu.

[philipc]

Sounds like an implementation defined extension. Which compiler version?

[MikeWalrus]

Using built-in specs.
COLLECT_GCC=gcc
COLLECT_LTO_WRAPPER=/usr/lib/gcc/x86_64-pc-linux-gnu/14.2.1/lto-wrapper
Target: x86_64-pc-linux-gnu
Configured with: /build/gcc/src/gcc/configure --enable-languages=ada,c,c++,d,fortran,go,lto,m2,objc,obj-c++,rust --enable-bootstrap --prefix=/usr --libdir=/usr/lib --libexecdir=/usr/lib --mandir=/usr/share/man --infodir=/usr/share/info --with-bugurl=https://gitlab.archlinux.org/archlinux/packaging/packages/gcc/-/issues --with-build-config=bootstrap-lto --with-linker-hash-style=gnu --with-system-zlib --enable-__cxa_atexit --enable-cet=auto --enable-checking=release --enable-clocale=gnu --enable-default-pie --enable-default-ssp --enable-gnu-indirect-function --enable-gnu-unique-object --enable-libstdcxx-backtrace --enable-link-serialization=1 --enable-linker-build-id --enable-lto --enable-multilib --enable-plugin --enable-shared --enable-threads=posix --disable-libssp --disable-libstdcxx-pch --disable-werror
Thread model: posix
Supported LTO compression algorithms: zlib zstd
gcc version 14.2.1 20240910 (GCC)

[philipc]

Can you provide a module that causes this error?

[MikeWalrus]

Here is one https://static.junxuanliao.com/public/btrfs.ko.zst

[philipc]

gimli's dwarfdump works fine on it. I think the problem will be that addr2line is not handling relocations.

[MikeWalrus]

Thanks! I'll close this issue then.

[philipc]

We should still fix this in addr2line.