kasan: add compiler support for clang
authorPaul Lawrence <paullawrence@google.com>
Tue, 6 Feb 2018 23:36:03 +0000 (15:36 -0800)
committerLinus Torvalds <torvalds@linux-foundation.org>
Wed, 7 Feb 2018 02:32:42 +0000 (18:32 -0800)
commit53a98ed73b848432a51631346b02049bb7fa039d
treef923b316690f5fd0064f5e6a968acf82c33b1420
parent0e410e158e5baa1300bdf678cea4f4e0cf9d8b94
kasan: add compiler support for clang

Patch series "kasan: support alloca, LLVM", v4.

This patch (of 5):

For now we can hard-code ASAN ABI level 5, since historical clang builds
can't build the kernel anyway.  We also need to emulate gcc's
__SANITIZE_ADDRESS__ flag, or memset() calls won't be instrumented.

Link: http://lkml.kernel.org/r/20171204191735.132544-2-paullawrence@google.com
Signed-off-by: Greg Hackmann <ghackmann@google.com>
Signed-off-by: Paul Lawrence <paullawrence@google.com>
Acked-by: Andrey Ryabinin <aryabinin@virtuozzo.com>
Cc: Alexander Potapenko <glider@google.com>
Cc: Dmitry Vyukov <dvyukov@google.com>
Cc: Masahiro Yamada <yamada.masahiro@socionext.com>
Cc: Matthias Kaehlcke <mka@chromium.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
include/linux/compiler-clang.h