kasan/Makefile: support LLVM style asan parameters
LLVM doesn't understand GCC-style paramters ("--param asan-foo=bar"), thus we currently we don't use inline/globals/stack instrumentation when building the kernel with clang. Add support for LLVM-style parameters ("-mllvm -asan-foo=bar") to enable all KASAN features. Link: http://lkml.kernel.org/r/20171204191735.132544-3-paullawrence@google.comSigned-off-by: NAndrey Ryabinin <aryabinin@virtuozzo.com> Signed-off-by: NPaul Lawrence <paullawrence@google.com> Reviewed-by: NAlexander Potapenko <glider@google.com> Cc: Dmitry Vyukov <dvyukov@google.com> Cc: Greg Hackmann <ghackmann@google.com> Cc: Masahiro Yamada <yamada.masahiro@socionext.com> Cc: Matthias Kaehlcke <mka@chromium.org> Signed-off-by: NAndrew Morton <akpm@linux-foundation.org> Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>
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