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Don't assume that unaligned word access is ok, except on x86 & amd64.

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This commit is contained in:
Frank Denis
2013-08-07 16:38:54 -07:00
parent bcfed75ad4
commit 4b6f1f5114
1 changed files with 8 additions and 2 deletions
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src/libsodium/crypto_onetimeauth/poly1305/donna/portable-jane.h
+8 -2
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@@ -281,9 +281,15 @@
/* unknown endian! */
#endif
#if defined(CPU_X86) || defined(CPU_X86_64)
# undef CPU_ALIGNED_ACCESS_REQUIRED
#else
# define CPU_ALIGNED_ACCESS_REQUIRED
#endif
/* 0400-endian-100-be.h */
#if defined(CPU_BE)
#if defined(CPU_BE) && !defined(CPU_ALIGNED_ACCESS_REQUIRED)
static uint16_t INLINE fU8TO16_BE_FAST(const uint8_t *p) { return *(const uint16_t *)p; }
static uint32_t INLINE fU8TO32_BE_FAST(const uint8_t *p) { return *(const uint32_t *)p; }
static uint64_t INLINE fU8TO64_BE_FAST(const uint8_t *p) { return *(const uint64_t *)p; }
@@ -301,7 +307,7 @@
/* 0400-endian-100-le.h */
#if defined(CPU_LE)
#if defined(CPU_LE) && !defined(CPU_ALIGNED_ACCESS_REQUIRED)
static uint16_t INLINE fU8TO16_LE_FAST(const uint8_t *p) { return *(const uint16_t *)p; }
static uint32_t INLINE fU8TO32_LE_FAST(const uint8_t *p) { return *(const uint32_t *)p; }
static uint64_t INLINE fU8TO64_LE_FAST(const uint8_t *p) { return *(const uint64_t *)p; }