Meet compiled kernel binaray abnormal issue while enabling generic kasan in kernel 6.12 with some default KBUILD_RUSTFLAGS on

[Miguel Ojeda]

On Tue, Jul 15, 2025 at 11:41 AM 刘海燕 (Haiyan Liu) <haiyan.liu at unisoc.com> wrote:
>
> The commit changes the fragment and diff is:

An Android engineer should know how to handle that, but if you are
reporting upstream, it is best to try to reproduce the issue with the
upstream kernels (e.g. arm64 is not in 6.6.y) and provide the full
kernel config used.

> Only two rust-related global variables in fmr.rs and layout.rs have this issue. Their asan.module_ctor complied binaries are wrong.

I am not sure what you mean by `fmr.rs`. As for `layout.rs`, that is
in the `kernel` crate in 6.12.y -- isn't there a single
`asan.module_ctor` per TU? Which object file are you referring to? I
get the pair for my `rust/kernel.o`.

Cheers,
Miguel