diff options
Diffstat (limited to 'tools/build/endian.h')
-rw-r--r-- | tools/build/endian.h | 57 |
1 files changed, 57 insertions, 0 deletions
diff --git a/tools/build/endian.h b/tools/build/endian.h new file mode 100644 index 0000000..dbec545 --- /dev/null +++ b/tools/build/endian.h @@ -0,0 +1,57 @@ +/* + * $FreeBSD$ + */ + +#include <sys/param.h> + +#if __FreeBSD_version >= 500034 +#include_next <sys/endian.h> +#else +#include <machine/endian.h> + +#define bswap16(x) (uint16_t) \ + ((x >> 8) | (x << 8)) + +#define bswap32(x) (uint32_t) \ + ((x >> 24) | ((x >> 8) & 0xff00) | ((x << 8) & 0xff0000) | (x << 24)) + +#define bswap64(x) (uint64_t) \ + ((x >> 56) | ((x >> 40) & 0xff00) | ((x >> 24) & 0xff0000) | \ + ((x >> 8) & 0xff000000) | ((x << 8) & ((uint64_t)0xff << 32)) | \ + ((x << 24) & ((uint64_t)0xff << 40)) | \ + ((x << 40) & ((uint64_t)0xff << 48)) | ((x << 56))) + +/* + * Host to big endian, host to little endian, big endian to host, and little + * endian to host byte order functions as detailed in byteorder(9). + */ +#if _BYTE_ORDER == _LITTLE_ENDIAN +#define htobe16(x) bswap16((uint16_t)(x)) +#define htobe32(x) bswap32((uint32_t)(x)) +#define htobe64(x) bswap64((uint64_t)(x)) +#define htole16(x) ((uint16_t)(x)) +#define htole32(x) ((uint32_t)(x)) +#define htole64(x) ((uint64_t)(x)) + +#define be16toh(x) bswap16((uint16_t)(x)) +#define be32toh(x) bswap32((uint32_t)(x)) +#define be64toh(x) bswap64((uint64_t)(x)) +#define le16toh(x) ((uint16_t)(x)) +#define le32toh(x) ((uint32_t)(x)) +#define le64toh(x) ((uint64_t)(x)) +#else /* _BYTE_ORDER != _LITTLE_ENDIAN */ +#define htobe16(x) ((uint16_t)(x)) +#define htobe32(x) ((uint32_t)(x)) +#define htobe64(x) ((uint64_t)(x)) +#define htole16(x) bswap16((uint16_t)(x)) +#define htole32(x) bswap32((uint32_t)(x)) +#define htole64(x) bswap64((uint64_t)(x)) + +#define be16toh(x) ((uint16_t)(x)) +#define be32toh(x) ((uint32_t)(x)) +#define be64toh(x) ((uint64_t)(x)) +#define le16toh(x) bswap16((uint16_t)(x)) +#define le32toh(x) bswap32((uint32_t)(x)) +#define le64toh(x) bswap64((uint64_t)(x)) +#endif /* _BYTE_ORDER == _LITTLE_ENDIAN */ +#endif |