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SubjectRe: [PATCH 0/2] Add SANITIZE_xx.o & SANITIZE and apply them to x86
Hello, Any comments? Thanks.

On Sat, Feb 01, 2020 at 02:24:57PM +0800, Changbin Du wrote:
> These two patches add SANITIZE_xx.o and SANITIZE to disable all sanitizers for
> specific files, and apply them to x86 booting code.
>
> We need to disable UBSAN for some of ealy stage code:
> o For code which could operate in one-one mapping mode. In this case,
> kernel would crash at accessing data parameter when invoking UBSAN
> handlers.
> o Since UBSAN handlers are instrumented by KASAN, so invoking UBSAN
> handlers before KASAN is initiated also is not allowed.
>
> Changbin Du (2):
> sanitize: Add SANITIZE_xx.o and SANITIZE to disable all sanitizers for
> specific files
> x86: Disable both KASAN and UBSAN for some booting code
>
> Documentation/dev-tools/kasan.rst | 12 ++++++++++++
> arch/x86/boot/Makefile | 2 +-
> arch/x86/boot/compressed/Makefile | 2 +-
> arch/x86/entry/vdso/Makefile | 3 +--
> arch/x86/kernel/Makefile | 10 +++++-----
> arch/x86/lib/Makefile | 2 +-
> arch/x86/mm/Makefile | 4 ++--
> arch/x86/realmode/Makefile | 2 +-
> arch/x86/realmode/rm/Makefile | 2 +-
> scripts/Makefile.lib | 4 ++--
> 10 files changed, 27 insertions(+), 16 deletions(-)
>
> --
> 2.24.0
>

--
Cheers,
Changbin Du

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