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LibC: use GCC __builtin_bswap{16,32,64} to provide __bswap functions

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Ørjan Malde 2019-11-16 17:08:36 +01:00 • committed by Andreas Kling
parent a55fb98d0a
commit 84bedd5528
1 changed files with 42 additions and 9 deletions
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51
Libraries/LibC/endian.h
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@ -18,6 +18,21 @@ __BEGIN_DECLS
#include <stdint.h>
static __inline uint16_t __bswap16(uint16_t x)
{
return __builtin_bswap16(x);
}
static __inline uint32_t __bswap32(uint32_t x)
{
return __builtin_bswap32(x)
}
static __inline uint64_t __bswap64(uint64_t x)
{
return __builtin_bswap64(x)
}
#define LITTLE_ENDIAN __LITTLE_ENDIAN
#define BIG_ENDIAN __BIG_ENDIAN
#define PDP_ENDIAN __PDP_ENDIAN
@ -33,16 +48,34 @@ __BEGIN_DECLS
#define htole64(x) (uint64_t)(x)
#define le64toh(x) (uint64_t)(x)
#define letoh64(x) (uint64_t)(x)
#define htobe16(x) __bswap16(x)
#define be16toh(x) __bswap16(x)
#define betoh16(x) __bswap16(x)
#define htobe32(x) __bswap32(x)
#define be32toh(x) __bswap32(x)
#define betoh32(x) __bswap32(x)
#define htobe64(x) __bswap64(x)
#define be64toh(x) __bswap64(x)
#define betoh64(x) __bswap64(x)
#else
#define htobe16(x) (uint16_t)(x)
#define be16toh(x) (uint16_t)(x)
#define betoh16(x) (uint16_t)(x)
#define htobe32(x) (uint32_t)(x)
#define be32toh(x) (uint32_t)(x)
#define betoh32(x) (uint32_t)(x)
#define htobe64(x) (uint64_t)(x)
#define be64toh(x) (uint64_t)(x)
#define betoh64(x) (uint64_t)(x)
#define ltobe16(x) (uint16_t)(x)
#define le16toh(x) (uint16_t)(x)
#define letoh16(x) (uint16_t)(x)
#define htole32(x) (uint32_t)(x)
#define le32toh(x) (uint32_t)(x)
#define letoh32(x) (uint32_t)(x)
#define htole64(x) (uint64_t)(x)
#define le64toh(x) (uint64_t)(x)
#define letoh64(x) (uint64_t)(x)
#define htole16(x) __bswap16(x)
#define le16toh(x) __bswap16(x)
#define letoh16(x) __bswap16(x)
#define htole32(x) __bswap32(x)
#define le32toh(x) __bswap32(x)
#define letoh32(x) __bswap32(x)
#define htole64(x) __bswap64(x)
#define le64toh(x) __bswap64(x)
#define letoh64(x) __bswap64(x)
#endif
#endif