diff options
Diffstat (limited to 'absl/base/internal/unaligned_access.h')
-rw-r--r-- | absl/base/internal/unaligned_access.h | 84 |
1 files changed, 52 insertions, 32 deletions
diff --git a/absl/base/internal/unaligned_access.h b/absl/base/internal/unaligned_access.h index 5c7517abd71a..f9df3b7848c4 100644 --- a/absl/base/internal/unaligned_access.h +++ b/absl/base/internal/unaligned_access.h @@ -65,6 +65,7 @@ void __sanitizer_unaligned_store64(void *p, uint64_t v); } // extern "C" namespace absl { +namespace base_internal { inline uint16_t UnalignedLoad16(const void *p) { return __sanitizer_unaligned_load16(p); @@ -90,22 +91,27 @@ inline void UnalignedStore64(void *p, uint64_t v) { __sanitizer_unaligned_store64(p, v); } +} // namespace base_internal } // namespace absl -#define ABSL_INTERNAL_UNALIGNED_LOAD16(_p) (absl::UnalignedLoad16(_p)) -#define ABSL_INTERNAL_UNALIGNED_LOAD32(_p) (absl::UnalignedLoad32(_p)) -#define ABSL_INTERNAL_UNALIGNED_LOAD64(_p) (absl::UnalignedLoad64(_p)) +#define ABSL_INTERNAL_UNALIGNED_LOAD16(_p) \ + (absl::base_internal::UnalignedLoad16(_p)) +#define ABSL_INTERNAL_UNALIGNED_LOAD32(_p) \ + (absl::base_internal::UnalignedLoad32(_p)) +#define ABSL_INTERNAL_UNALIGNED_LOAD64(_p) \ + (absl::base_internal::UnalignedLoad64(_p)) #define ABSL_INTERNAL_UNALIGNED_STORE16(_p, _val) \ - (absl::UnalignedStore16(_p, _val)) + (absl::base_internal::UnalignedStore16(_p, _val)) #define ABSL_INTERNAL_UNALIGNED_STORE32(_p, _val) \ - (absl::UnalignedStore32(_p, _val)) + (absl::base_internal::UnalignedStore32(_p, _val)) #define ABSL_INTERNAL_UNALIGNED_STORE64(_p, _val) \ - (absl::UnalignedStore64(_p, _val)) + (absl::base_internal::UnalignedStore64(_p, _val)) #elif defined(UNDEFINED_BEHAVIOR_SANITIZER) namespace absl { +namespace base_internal { inline uint16_t UnalignedLoad16(const void *p) { uint16_t t; @@ -131,18 +137,22 @@ inline void UnalignedStore32(void *p, uint32_t v) { memcpy(p, &v, sizeof v); } inline void UnalignedStore64(void *p, uint64_t v) { memcpy(p, &v, sizeof v); } +} // namespace base_internal } // namespace absl -#define ABSL_INTERNAL_UNALIGNED_LOAD16(_p) (absl::UnalignedLoad16(_p)) -#define ABSL_INTERNAL_UNALIGNED_LOAD32(_p) (absl::UnalignedLoad32(_p)) -#define ABSL_INTERNAL_UNALIGNED_LOAD64(_p) (absl::UnalignedLoad64(_p)) +#define ABSL_INTERNAL_UNALIGNED_LOAD16(_p) \ + (absl::base_internal::UnalignedLoad16(_p)) +#define ABSL_INTERNAL_UNALIGNED_LOAD32(_p) \ + (absl::base_internal::UnalignedLoad32(_p)) +#define ABSL_INTERNAL_UNALIGNED_LOAD64(_p) \ + (absl::base_internal::UnalignedLoad64(_p)) #define ABSL_INTERNAL_UNALIGNED_STORE16(_p, _val) \ - (absl::UnalignedStore16(_p, _val)) + (absl::base_internal::UnalignedStore16(_p, _val)) #define ABSL_INTERNAL_UNALIGNED_STORE32(_p, _val) \ - (absl::UnalignedStore32(_p, _val)) + (absl::base_internal::UnalignedStore32(_p, _val)) #define ABSL_INTERNAL_UNALIGNED_STORE64(_p, _val) \ - (absl::UnalignedStore64(_p, _val)) + (absl::base_internal::UnalignedStore64(_p, _val)) #elif defined(__x86_64__) || defined(_M_X64) || defined(__i386) || \ defined(_M_IX86) || defined(__ppc__) || defined(__PPC__) || \ @@ -199,7 +209,7 @@ inline void UnalignedStore64(void *p, uint64_t v) { memcpy(p, &v, sizeof v); } // so we do that. namespace absl { -namespace internal { +namespace base_internal { struct Unaligned16Struct { uint16_t value; @@ -211,22 +221,25 @@ struct Unaligned32Struct { uint8_t dummy; // To make the size non-power-of-two. } ABSL_ATTRIBUTE_PACKED; -} // namespace internal +} // namespace base_internal } // namespace absl -#define ABSL_INTERNAL_UNALIGNED_LOAD16(_p) \ - ((reinterpret_cast<const ::absl::internal::Unaligned16Struct *>(_p))->value) -#define ABSL_INTERNAL_UNALIGNED_LOAD32(_p) \ - ((reinterpret_cast<const ::absl::internal::Unaligned32Struct *>(_p))->value) +#define ABSL_INTERNAL_UNALIGNED_LOAD16(_p) \ + ((reinterpret_cast<const ::absl::base_internal::Unaligned16Struct *>(_p)) \ + ->value) +#define ABSL_INTERNAL_UNALIGNED_LOAD32(_p) \ + ((reinterpret_cast<const ::absl::base_internal::Unaligned32Struct *>(_p)) \ + ->value) -#define ABSL_INTERNAL_UNALIGNED_STORE16(_p, _val) \ - ((reinterpret_cast< ::absl::internal::Unaligned16Struct *>(_p))->value = \ - (_val)) -#define ABSL_INTERNAL_UNALIGNED_STORE32(_p, _val) \ - ((reinterpret_cast< ::absl::internal::Unaligned32Struct *>(_p))->value = \ - (_val)) +#define ABSL_INTERNAL_UNALIGNED_STORE16(_p, _val) \ + ((reinterpret_cast< ::absl::base_internal::Unaligned16Struct *>(_p)) \ + ->value = (_val)) +#define ABSL_INTERNAL_UNALIGNED_STORE32(_p, _val) \ + ((reinterpret_cast< ::absl::base_internal::Unaligned32Struct *>(_p)) \ + ->value = (_val)) namespace absl { +namespace base_internal { inline uint64_t UnalignedLoad64(const void *p) { uint64_t t; @@ -236,11 +249,13 @@ inline uint64_t UnalignedLoad64(const void *p) { inline void UnalignedStore64(void *p, uint64_t v) { memcpy(p, &v, sizeof v); } +} // namespace base_internal } // namespace absl -#define ABSL_INTERNAL_UNALIGNED_LOAD64(_p) (absl::UnalignedLoad64(_p)) +#define ABSL_INTERNAL_UNALIGNED_LOAD64(_p) \ + (absl::base_internal::UnalignedLoad64(_p)) #define ABSL_INTERNAL_UNALIGNED_STORE64(_p, _val) \ - (absl::UnalignedStore64(_p, _val)) + (absl::base_internal::UnalignedStore64(_p, _val)) #else @@ -252,6 +267,7 @@ inline void UnalignedStore64(void *p, uint64_t v) { memcpy(p, &v, sizeof v); } // unaligned loads and stores. namespace absl { +namespace base_internal { inline uint16_t UnalignedLoad16(const void *p) { uint16_t t; @@ -277,18 +293,22 @@ inline void UnalignedStore32(void *p, uint32_t v) { memcpy(p, &v, sizeof v); } inline void UnalignedStore64(void *p, uint64_t v) { memcpy(p, &v, sizeof v); } +} // namespace base_internal } // namespace absl -#define ABSL_INTERNAL_UNALIGNED_LOAD16(_p) (absl::UnalignedLoad16(_p)) -#define ABSL_INTERNAL_UNALIGNED_LOAD32(_p) (absl::UnalignedLoad32(_p)) -#define ABSL_INTERNAL_UNALIGNED_LOAD64(_p) (absl::UnalignedLoad64(_p)) +#define ABSL_INTERNAL_UNALIGNED_LOAD16(_p) \ + (absl::base_internal::UnalignedLoad16(_p)) +#define ABSL_INTERNAL_UNALIGNED_LOAD32(_p) \ + (absl::base_internal::UnalignedLoad32(_p)) +#define ABSL_INTERNAL_UNALIGNED_LOAD64(_p) \ + (absl::base_internal::UnalignedLoad64(_p)) #define ABSL_INTERNAL_UNALIGNED_STORE16(_p, _val) \ - (absl::UnalignedStore16(_p, _val)) + (absl::base_internal::UnalignedStore16(_p, _val)) #define ABSL_INTERNAL_UNALIGNED_STORE32(_p, _val) \ - (absl::UnalignedStore32(_p, _val)) + (absl::base_internal::UnalignedStore32(_p, _val)) #define ABSL_INTERNAL_UNALIGNED_STORE64(_p, _val) \ - (absl::UnalignedStore64(_p, _val)) + (absl::base_internal::UnalignedStore64(_p, _val)) #endif |