[PATCH 6/7] rijndael-aesni: fix u128_t strict-aliasing rule breaking
Jussi Kivilinna
jussi.kivilinna at iki.fi
Wed Jan 25 22:15:35 CET 2017
* cipher/rijndael-aesni.c (u128_t): Add attributes to tell GCC and clang
that casting from 'char *' to 'u128_t *' is ok.
--
Signed-off-by: Jussi Kivilinna <jussi.kivilinna at iki.fi>
---
0 files changed
diff --git a/cipher/rijndael-aesni.c b/cipher/rijndael-aesni.c
index 7852e19..735e5cd 100644
--- a/cipher/rijndael-aesni.c
+++ b/cipher/rijndael-aesni.c
@@ -41,7 +41,10 @@
#endif
-typedef struct u128_s { u32 a, b, c, d; } u128_t;
+typedef struct u128_s
+{
+ u32 a, b, c, d;
+} __attribute__((packed, aligned(1), may_alias)) u128_t;
/* Two macros to be called prior and after the use of AESNI
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