#ifndef BSWAP_H #define BSWAP_H #include "config-host.h" #include <inttypes.h> #ifdef CONFIG_MACHINE_BSWAP_H #include <sys/endian.h> #include <sys/types.h> #include <machine/bswap.h> #else #ifdef CONFIG_BYTESWAP_H #include <byteswap.h> #else #define bswap_16(x) \ ({ \ uint16_t __x = (x); \ ((uint16_t)( \ (((uint16_t)(__x) & (uint16_t)0x00ffU) << 8) | \ (((uint16_t)(__x) & (uint16_t)0xff00U) >> 8) )); \ }) #define bswap_32(x) \ ({ \ uint32_t __x = (x); \ ((uint32_t)( \ (((uint32_t)(__x) & (uint32_t)0x000000ffUL) << 24) | \ (((uint32_t)(__x) & (uint32_t)0x0000ff00UL) << 8) | \ (((uint32_t)(__x) & (uint32_t)0x00ff0000UL) >> 8) | \ (((uint32_t)(__x) & (uint32_t)0xff000000UL) >> 24) )); \ }) #define bswap_64(x) \ ({ \ uint64_t __x = (x); \ ((uint64_t)( \ (uint64_t)(((uint64_t)(__x) & (uint64_t)0x00000000000000ffULL) << 56) | \ (uint64_t)(((uint64_t)(__x) & (uint64_t)0x000000000000ff00ULL) << 40) | \ (uint64_t)(((uint64_t)(__x) & (uint64_t)0x0000000000ff0000ULL) << 24) | \ (uint64_t)(((uint64_t)(__x) & (uint64_t)0x00000000ff000000ULL) << 8) | \ (uint64_t)(((uint64_t)(__x) & (uint64_t)0x000000ff00000000ULL) >> 8) | \ (uint64_t)(((uint64_t)(__x) & (uint64_t)0x0000ff0000000000ULL) >> 24) | \ (uint64_t)(((uint64_t)(__x) & (uint64_t)0x00ff000000000000ULL) >> 40) | \ (uint64_t)(((uint64_t)(__x) & (uint64_t)0xff00000000000000ULL) >> 56) )); \ }) #endif /* !CONFIG_BYTESWAP_H */ static inline uint16_t bswap16(uint16_t x) { return bswap_16(x); } static inline uint32_t bswap32(uint32_t x) { return bswap_32(x); } static inline uint64_t bswap64(uint64_t x) { return bswap_64(x); } #endif /* ! CONFIG_MACHINE_BSWAP_H */ static inline void bswap16s(uint16_t *s) { *s = bswap16(*s); } static inline void bswap32s(uint32_t *s) { *s = bswap32(*s); } static inline void bswap64s(uint64_t *s) { *s = bswap64(*s); } #if defined(HOST_WORDS_BIGENDIAN) #define be_bswap(v, size) (v) #define le_bswap(v, size) bswap ## size(v) #define be_bswaps(v, size) #define le_bswaps(p, size) *p = bswap ## size(*p); #else #define le_bswap(v, size) (v) #define be_bswap(v, size) bswap ## size(v) #define le_bswaps(v, size) #define be_bswaps(p, size) *p = bswap ## size(*p); #endif #define CPU_CONVERT(endian, size, type)\ static inline type endian ## size ## _to_cpu(type v)\ {\ return endian ## _bswap(v, size);\ }\ \ static inline type cpu_to_ ## endian ## size(type v)\ {\ return endian ## _bswap(v, size);\ }\ \ static inline void endian ## size ## _to_cpus(type *p)\ {\ endian ## _bswaps(p, size)\ }\ \ static inline void cpu_to_ ## endian ## size ## s(type *p)\ {\ endian ## _bswaps(p, size)\ }\ \ static inline type endian ## size ## _to_cpup(const type *p)\ {\ return endian ## size ## _to_cpu(*p);\ }\ \ static inline void cpu_to_ ## endian ## size ## w(type *p, type v)\ {\ *p = cpu_to_ ## endian ## size(v);\ } CPU_CONVERT(be, 16, uint16_t) CPU_CONVERT(be, 32, uint32_t) CPU_CONVERT(be, 64, uint64_t) CPU_CONVERT(le, 16, uint16_t) CPU_CONVERT(le, 32, uint32_t) CPU_CONVERT(le, 64, uint64_t) /* unaligned versions (optimized for frequent unaligned accesses)*/ #if defined(__i386__) || defined(_ARCH_PPC) #define cpu_to_le16wu(p, v) cpu_to_le16w(p, v) #define cpu_to_le32wu(p, v) cpu_to_le32w(p, v) #define le16_to_cpupu(p) le16_to_cpup(p) #define le32_to_cpupu(p) le32_to_cpup(p) #define be32_to_cpupu(p) be32_to_cpup(p) #define cpu_to_be16wu(p, v) cpu_to_be16w(p, v) #define cpu_to_be32wu(p, v) cpu_to_be32w(p, v) #else static inline void cpu_to_le16wu(uint16_t *p, uint16_t v) { uint8_t *p1 = (uint8_t *)p; p1[0] = v & 0xff; p1[1] = v >> 8; } static inline void cpu_to_le32wu(uint32_t *p, uint32_t v) { uint8_t *p1 = (uint8_t *)p; p1[0] = v & 0xff; p1[1] = v >> 8; p1[2] = v >> 16; p1[3] = v >> 24; } static inline uint16_t le16_to_cpupu(const uint16_t *p) { const uint8_t *p1 = (const uint8_t *)p; return p1[0] | (p1[1] << 8); } static inline uint32_t le32_to_cpupu(const uint32_t *p) { const uint8_t *p1 = (const uint8_t *)p; return p1[0] | (p1[1] << 8) | (p1[2] << 16) | (p1[3] << 24); } static inline uint32_t be32_to_cpupu(const uint32_t *p) { const uint8_t *p1 = (const uint8_t *)p; return p1[3] | (p1[2] << 8) | (p1[1] << 16) | (p1[0] << 24); } static inline void cpu_to_be16wu(uint16_t *p, uint16_t v) { uint8_t *p1 = (uint8_t *)p; p1[0] = v >> 8; p1[1] = v & 0xff; } static inline void cpu_to_be32wu(uint32_t *p, uint32_t v) { uint8_t *p1 = (uint8_t *)p; p1[0] = v >> 24; p1[1] = v >> 16; p1[2] = v >> 8; p1[3] = v & 0xff; } #endif #ifdef HOST_WORDS_BIGENDIAN #define cpu_to_32wu cpu_to_be32wu #else #define cpu_to_32wu cpu_to_le32wu #endif #undef le_bswap #undef be_bswap #undef le_bswaps #undef be_bswaps /* len must be one of 1, 2, 4 */ static inline uint32_t qemu_bswap_len(uint32_t value, int len) { return bswap32(value) >> (32 - 8 * len); } #endif /* BSWAP_H */