From: Dmitry Vyukov Date: Wed, 30 Nov 2016 23:54:13 +0000 (-0800) Subject: kasan: update kasan_global for gcc 7 X-Git-Tag: firefly_0821_release~176^2~4^2~9^2~40 X-Git-Url: http://demsky.eecs.uci.edu/git/?a=commitdiff_plain;h=995761627d97cc374f14203589b3a6385019bf0b;p=firefly-linux-kernel-4.4.55.git kasan: update kasan_global for gcc 7 commit 045d599a286bc01daa3510d59272440a17b23c2e upstream. 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 Acked-by: Andrey Ryabinin Cc: Alexander Potapenko Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds Signed-off-by: Greg Kroah-Hartman --- diff --git a/include/linux/compiler-gcc.h b/include/linux/compiler-gcc.h index eeae401a2412..287e698c28de 100644 --- a/include/linux/compiler-gcc.h +++ b/include/linux/compiler-gcc.h @@ -251,7 +251,9 @@ #endif #endif /* CONFIG_ARCH_USE_BUILTIN_BSWAP */ -#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 diff --git a/mm/kasan/kasan.h b/mm/kasan/kasan.h index 4f6c62e5c21e..37ff0ab6a8ff 100644 --- a/mm/kasan/kasan.h +++ b/mm/kasan/kasan.h @@ -52,6 +52,9 @@ struct kasan_global { #if KASAN_ABI_VERSION >= 4 struct kasan_source_location *location; #endif +#if KASAN_ABI_VERSION >= 5 + char *odr_indicator; +#endif }; static inline const void *kasan_shadow_to_mem(const void *shadow_addr)