Re: [PATCH 2/2] kasan: disallow compiler to optimize away memset in tests

[Andrey Ryabinin]

On 03/01/2018 08:15 PM, Andrey Konovalov wrote:
> A compiler can optimize away memset calls by replacing them with mov
> instructions. There are KASAN tests, that specifically test that KASAN
> correctly handles memset calls, we don't want this optimization to
> happen.
> 
> The solution is to add -fno-builtin flag to test_kasan.ko
> 
> Signed-off-by: Andrey Konovalov <andreyknvl@xxxxxxxxxx>

Acked-by: Andrey Ryabinin <aryabinin@xxxxxxxxxxxxx>