Add support for gcc __builtin_bswap*() for byteswapping unaligned references. Signed-off-by: H. Peter Anvin <hpa@xxxxxxxxx> --- tools/include/tools/unaligned/be_bswap.h | 36 ++++++++++++++++++++++++++++++++ tools/include/tools/unaligned/le_bswap.h | 36 ++++++++++++++++++++++++++++++++ 2 files changed, 72 insertions(+) create mode 100644 tools/include/tools/unaligned/be_bswap.h create mode 100644 tools/include/tools/unaligned/le_bswap.h diff --git a/tools/include/tools/unaligned/be_bswap.h b/tools/include/tools/unaligned/be_bswap.h new file mode 100644 index 000000000000..9e8d1e91fe0e --- /dev/null +++ b/tools/include/tools/unaligned/be_bswap.h @@ -0,0 +1,36 @@ +#ifndef _TOOLS_BE_BSWAP_H +#define _TOOLS_BE_BSWAP_H + +#include <stdint.h> + +static inline uint16_t get_unaligned_be16(const void *_p) +{ + return __builtin_bswap16(get_unaligned_le16(_p)); +} + +static inline uint32_t get_unaligned_be32(const void *_p) +{ + return __builtin_bswap32(get_unaligned_le32(_p)); +} + +static inline uint64_t get_unaligned_be64(const void *_p) +{ + return __builtin_bswap64(get_unaligned_le64(_p)); +} + +static inline void put_unaligned_be16(uint16_t val, void *_p) +{ + put_unaligned_le16(__builtin_bswap16(val), _p); +} + +static inline void put_unaligned_be32(uint32_t val, void *_p) +{ + put_unaligned_le32(__builtin_bswap32(val), _p); +} + +static inline void put_unaligned_be64(uint64_t val, void *_p) +{ + put_unaligned_le64(__builtin_bswap64(val), _p); +} + +#endif /* _TOOLS_BE_BSWAP_H */ diff --git a/tools/include/tools/unaligned/le_bswap.h b/tools/include/tools/unaligned/le_bswap.h new file mode 100644 index 000000000000..9c70415fa782 --- /dev/null +++ b/tools/include/tools/unaligned/le_bswap.h @@ -0,0 +1,36 @@ +#ifndef _TOOLS_LE_BSWAP_H +#define _TOOLS_LE_BSWAP_H + +#include <stdint.h> + +static inline uint16_t get_unaligned_le16(const void *_p) +{ + return __builtin_bswap16(get_unaligned_be16(_p)); +} + +static inline uint32_t get_unaligned_le32(const void *_p) +{ + return __builtin_bswap32(get_unaligned_be32(_p)); +} + +static inline uint64_t get_unaligned_le64(const void *_p) +{ + return __builtin_bswap64(get_unaligned_be64(_p)); +} + +static inline void put_unaligned_le16(uint16_t val, void *_p) +{ + put_unaligned_be16(__builtin_bswap16(val), _p); +} + +static inline void put_unaligned_le32(uint32_t val, void *_p) +{ + put_unaligned_be32(__builtin_bswap32(val), _p); +} + +static inline void put_unaligned_le64(uint64_t val, void *_p) +{ + put_unaligned_be64(__builtin_bswap64(val), _p); +} + +#endif /* _TOOLS_LE_BSWAP_H */ -- 1.9.3 -- To unsubscribe from this list: send the line "unsubscribe linux-kbuild" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html