* [PATCH] kasan: update kasan_global for gcc 7
@ 2016-11-15 14:22 Dmitry Vyukov
2016-11-15 16:53 ` Andrey Ryabinin
0 siblings, 1 reply; 3+ messages in thread
From: Dmitry Vyukov @ 2016-11-15 14:22 UTC (permalink / raw)
To: aryabinin, glider, akpm; +Cc: Dmitry Vyukov, kasan-dev, linux-mm, linux-kernel
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.
Signed-off-by: Dmitry Vyukov <dvyukov@google.com>
Cc: aryabinin@virtuozzo.com
Cc: glider@google.com
Cc: akpm@linux-foundation.org
Cc: kasan-dev@googlegroups.com
Cc: linux-mm@kvack.org
Cc: linux-kernel@vger.kernel.org
---
include/linux/compiler-gcc.h | 4 +++-
mm/kasan/kasan.h | 3 +++
2 files changed, 6 insertions(+), 1 deletion(-)
diff --git a/include/linux/compiler-gcc.h b/include/linux/compiler-gcc.h
index 432f5c9..928e5ca 100644
--- a/include/linux/compiler-gcc.h
+++ b/include/linux/compiler-gcc.h
@@ -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
diff --git a/mm/kasan/kasan.h b/mm/kasan/kasan.h
index e5c2181..03f4545 100644
--- a/mm/kasan/kasan.h
+++ b/mm/kasan/kasan.h
@@ -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
};
/**
--
2.8.0.rc3.226.g39d4020
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^ permalink raw reply related [flat|nested] 3+ messages in thread* Re: [PATCH] kasan: update kasan_global for gcc 7
2016-11-15 14:22 [PATCH] kasan: update kasan_global for gcc 7 Dmitry Vyukov
@ 2016-11-15 16:53 ` Andrey Ryabinin
0 siblings, 0 replies; 3+ messages in thread
From: Andrey Ryabinin @ 2016-11-15 16:53 UTC (permalink / raw)
To: Dmitry Vyukov, glider, akpm; +Cc: kasan-dev, linux-mm, linux-kernel
On 11/15/2016 05:22 PM, Dmitry Vyukov wrote:
> 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.
>
> Signed-off-by: Dmitry Vyukov <dvyukov@google.com>
> Cc: aryabinin@virtuozzo.com
> Cc: glider@google.com
> Cc: akpm@linux-foundation.org
> Cc: kasan-dev@googlegroups.com
> Cc: linux-mm@kvack.org
> Cc: linux-kernel@vger.kernel.org
> ---
Acked-by: Andrey Ryabinin <aryabinin@virtuozzo.com>
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^ permalink raw reply [flat|nested] 3+ messages in thread
* [PATCH] kasan: update kasan_global for gcc 7
@ 2016-11-24 14:36 Dmitry Vyukov
0 siblings, 0 replies; 3+ messages in thread
From: Dmitry Vyukov @ 2016-11-24 14:36 UTC (permalink / raw)
To: aryabinin, glider, akpm
Cc: Dmitry Vyukov, arnd, kasan-dev, linux-mm, linux-kernel, stable, #,
4.0+
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.
Signed-off-by: Dmitry Vyukov <dvyukov@google.com>
Cc: aryabinin@virtuozzo.com
Cc: glider@google.com
Cc: akpm@linux-foundation.org
Cc: arnd@arndb.de
Cc: kasan-dev@googlegroups.com
Cc: linux-mm@kvack.org
Cc: linux-kernel@vger.kernel.org
Cc: stable@vger.kernel.org # 4.0+
---
Changes since v1:
- added cc stable
---
include/linux/compiler-gcc.h | 4 +++-
mm/kasan/kasan.h | 3 +++
2 files changed, 6 insertions(+), 1 deletion(-)
diff --git a/include/linux/compiler-gcc.h b/include/linux/compiler-gcc.h
index 432f5c9..928e5ca 100644
--- a/include/linux/compiler-gcc.h
+++ b/include/linux/compiler-gcc.h
@@ -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
diff --git a/mm/kasan/kasan.h b/mm/kasan/kasan.h
index e5c2181..03f4545 100644
--- a/mm/kasan/kasan.h
+++ b/mm/kasan/kasan.h
@@ -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
};
/**
--
2.8.0.rc3.226.g39d4020
--
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^ permalink raw reply related [flat|nested] 3+ messages in thread
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2016-11-15 16:53 ` Andrey Ryabinin
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