Commit 045d599a authored Nov 30, 2016 by Dmitry Vyukov Committed by Linus Torvalds Nov 30, 2016

kasan: update kasan_global for gcc 7

kasan_global struct is part of compiler/runtime ABI.  gcc revision
241983 has added a new field to kasan_global struct.  Update kernel
definition of kasan_global struct to include the new field.

Without this patch KASAN is broken with gcc 7.

Link: http://lkml.kernel.org/r/1479219743-28682-1-git-send-email-dvyukov@google.com


Signed-off-by: Dmitry Vyukov <dvyukov@google.com>
Acked-by: Andrey Ryabinin <aryabinin@virtuozzo.com>
Cc: Alexander Potapenko <glider@google.com>
Cc: <stable@vger.kernel.org>	[4.0+]
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

parent f8ff04e2

include/linux/compiler-gcc.h

+3 −1

Original line number	Diff line number	Diff line
		@@ -263,7 +263,9 @@
		#endif
		#endif /* CONFIG_ARCH_USE_BUILTIN_BSWAP && !__CHECKER__ */

		#if GCC_VERSION >= 50000
		#if GCC_VERSION >= 70000
		#define KASAN_ABI_VERSION 5
		#elif GCC_VERSION >= 50000
		#define KASAN_ABI_VERSION 4
		#elif GCC_VERSION >= 40902
		#define KASAN_ABI_VERSION 3

mm/kasan/kasan.h

+3 −0

Original line number	Diff line number	Diff line
		@@ -53,6 +53,9 @@ struct kasan_global {
		#if KASAN_ABI_VERSION >= 4
		struct kasan_source_location *location;
		#endif
		#if KASAN_ABI_VERSION >= 5
		char *odr_indicator;
		#endif
		};

		/**

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