Re: error: kernel-address sanitizer is not supported for this target

[Alice Ryhl <aliceryhl@google.com>]

On Tue, Apr 07, 2026 at 11:58:00AM +0800, kernel test robot wrote:
> Hi Christian,
> 
> FYI, the error/warning still remains.
> 
> tree:   https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git master
> head:   3aae9383f42f687221c011d7ee87529398e826b3
> commit: ccb8ce526807fcbd4578d6619100d8ec48769ea8 ARM: 9441/1: rust: Enable Rust support for ARMv7
> date:   1 year ago
> config: arm-randconfig-r061-20260405 (https://download.01.org/0day-ci/archive/20260405/202604051027.NPt0H2Dy-lkp@intel.com/config)
> compiler: clang version 23.0.0git (https://github.com/llvm/llvm-project c80443cd37b2e2788cba67ffa180a6331e5f0791)
> rustc: rustc 1.88.0 (6b00bc388 2025-06-23)
> reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20260405/202604051027.NPt0H2Dy-lkp@intel.com/reproduce)
> 
> If you fix the issue in a separate patch/commit (i.e. not just a new version of
> the same patch/commit), kindly add following tags
> | Fixes: ccb8ce526807 ("ARM: 9441/1: rust: Enable Rust support for ARMv7")
> | Reported-by: kernel test robot <lkp@intel.com>
> | Closes: https://lore.kernel.org/oe-kbuild-all/202604051027.NPt0H2Dy-lkp@intel.com/
> 
> All errors (new ones prefixed by >>):
> 
>    scripts/dtc/dtc-lexer.lex.c:630:12: warning: variable 'dts_version' set but not used [-Wunused-but-set-global]
>    630 | static int dts_version = 1;
>    |            ^
>    1 warning generated.
>    scripts/sorttable.c:399:12: warning: variable 'long_size' set but not used [-Wunused-but-set-global]
>    399 | static int long_size;
>    |            ^
>    1 warning generated.
>    In file included from <built-in>:3:
>    In file included from include/linux/compiler_types.h:171:
>    include/linux/compiler-clang.h:28:9: warning: '__SANITIZE_ADDRESS__' macro redefined [-Wmacro-redefined]
>    28 | #define __SANITIZE_ADDRESS__
>    |         ^
>    <built-in>:367:9: note: previous definition is here
>    367 | #define __SANITIZE_ADDRESS__ 1
>    |         ^
> >> error: kernel-address sanitizer is not supported for this target

Like [1], this would probably be fixed by moving away from the linux
target, as kernel-address is a bare-metal only sanitizer.

[1]: https://lore.kernel.org/all/acUGAsjYvNvTEO92@google.com/