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Diffstat (limited to 'contrib/qemu/include/qemu/bswap.h')
-rw-r--r-- | contrib/qemu/include/qemu/bswap.h | 487 |
1 files changed, 0 insertions, 487 deletions
diff --git a/contrib/qemu/include/qemu/bswap.h b/contrib/qemu/include/qemu/bswap.h deleted file mode 100644 index bf6457b8c46..00000000000 --- a/contrib/qemu/include/qemu/bswap.h +++ /dev/null @@ -1,487 +0,0 @@ -#ifndef BSWAP_H -#define BSWAP_H - -#include "config-host.h" -#include <inttypes.h> -#include <limits.h> -#include <string.h> -#include "fpu/softfloat.h" - -#ifdef CONFIG_MACHINE_BSWAP_H -# include <sys/endian.h> -# include <sys/types.h> -# include <machine/bswap.h> -#elif defined(__FreeBSD__) -# include <sys/endian.h> -#elif defined(CONFIG_BYTESWAP_H) -#ifdef GF_DARWIN_HOST_OS -# include <libkern/OSByteOrder.h> -#define bswap_16(x) OSSwapInt16(x) -#define bswap_32(x) OSSwapInt32(x) -#define bswap_64(x) OSSwapInt64(x) -#else -# include <byteswap.h> -#endif - -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); -} -# else -static inline uint16_t bswap16(uint16_t x) -{ - return (((x & 0x00ff) << 8) | - ((x & 0xff00) >> 8)); -} - -static inline uint32_t bswap32(uint32_t x) -{ - return (((x & 0x000000ffU) << 24) | - ((x & 0x0000ff00U) << 8) | - ((x & 0x00ff0000U) >> 8) | - ((x & 0xff000000U) >> 24)); -} - -static inline uint64_t bswap64(uint64_t x) -{ - return (((x & 0x00000000000000ffULL) << 56) | - ((x & 0x000000000000ff00ULL) << 40) | - ((x & 0x0000000000ff0000ULL) << 24) | - ((x & 0x00000000ff000000ULL) << 8) | - ((x & 0x000000ff00000000ULL) >> 8) | - ((x & 0x0000ff0000000000ULL) >> 24) | - ((x & 0x00ff000000000000ULL) >> 40) | - ((x & 0xff00000000000000ULL) >> 56)); -} -#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) glue(bswap, size)(v) -#define be_bswaps(v, size) -#define le_bswaps(p, size) do { *p = glue(bswap, size)(*p); } while(0) -#else -#define le_bswap(v, size) (v) -#define be_bswap(v, size) glue(bswap, size)(v) -#define le_bswaps(v, size) -#define be_bswaps(p, size) do { *p = glue(bswap, size)(*p); } while(0) -#endif - -#define CPU_CONVERT(endian, size, type)\ -static inline type endian ## size ## _to_cpu(type v)\ -{\ - return glue(endian, _bswap)(v, size);\ -}\ -\ -static inline type cpu_to_ ## endian ## size(type v)\ -{\ - return glue(endian, _bswap)(v, size);\ -}\ -\ -static inline void endian ## size ## _to_cpus(type *p)\ -{\ - glue(endian, _bswaps)(p, size);\ -}\ -\ -static inline void cpu_to_ ## endian ## size ## s(type *p)\ -{\ - glue(endian, _bswaps)(p, size);\ -}\ -\ -static inline type endian ## size ## _to_cpup(const type *p)\ -{\ - return glue(glue(endian, size), _to_cpu)(*p);\ -}\ -\ -static inline void cpu_to_ ## endian ## size ## w(type *p, type v)\ -{\ - *p = glue(glue(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) - -/* 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); -} - -/* Unions for reinterpreting between floats and integers. */ - -typedef union { - float32 f; - uint32_t l; -} CPU_FloatU; - -typedef union { - float64 d; -#if defined(HOST_WORDS_BIGENDIAN) - struct { - uint32_t upper; - uint32_t lower; - } l; -#else - struct { - uint32_t lower; - uint32_t upper; - } l; -#endif - uint64_t ll; -} CPU_DoubleU; - -typedef union { - floatx80 d; - struct { - uint64_t lower; - uint16_t upper; - } l; -} CPU_LDoubleU; - -typedef union { - float128 q; -#if defined(HOST_WORDS_BIGENDIAN) - struct { - uint32_t upmost; - uint32_t upper; - uint32_t lower; - uint32_t lowest; - } l; - struct { - uint64_t upper; - uint64_t lower; - } ll; -#else - struct { - uint32_t lowest; - uint32_t lower; - uint32_t upper; - uint32_t upmost; - } l; - struct { - uint64_t lower; - uint64_t upper; - } ll; -#endif -} CPU_QuadU; - -/* unaligned/endian-independent pointer access */ - -/* - * the generic syntax is: - * - * load: ld{type}{sign}{size}{endian}_p(ptr) - * - * store: st{type}{size}{endian}_p(ptr, val) - * - * Note there are small differences with the softmmu access API! - * - * type is: - * (empty): integer access - * f : float access - * - * sign is: - * (empty): for floats or 32 bit size - * u : unsigned - * s : signed - * - * size is: - * b: 8 bits - * w: 16 bits - * l: 32 bits - * q: 64 bits - * - * endian is: - * (empty): host endian - * be : big endian - * le : little endian - */ - -static inline int ldub_p(const void *ptr) -{ - return *(uint8_t *)ptr; -} - -static inline int ldsb_p(const void *ptr) -{ - return *(int8_t *)ptr; -} - -static inline void stb_p(void *ptr, int v) -{ - *(uint8_t *)ptr = v; -} - -/* Any compiler worth its salt will turn these memcpy into native unaligned - operations. Thus we don't need to play games with packed attributes, or - inline byte-by-byte stores. */ - -static inline int lduw_p(const void *ptr) -{ - uint16_t r; - memcpy(&r, ptr, sizeof(r)); - return r; -} - -static inline int ldsw_p(const void *ptr) -{ - int16_t r; - memcpy(&r, ptr, sizeof(r)); - return r; -} - -static inline void stw_p(void *ptr, uint16_t v) -{ - memcpy(ptr, &v, sizeof(v)); -} - -static inline int ldl_p(const void *ptr) -{ - int32_t r; - memcpy(&r, ptr, sizeof(r)); - return r; -} - -static inline void stl_p(void *ptr, uint32_t v) -{ - memcpy(ptr, &v, sizeof(v)); -} - -static inline uint64_t ldq_p(const void *ptr) -{ - uint64_t r; - memcpy(&r, ptr, sizeof(r)); - return r; -} - -static inline void stq_p(void *ptr, uint64_t v) -{ - memcpy(ptr, &v, sizeof(v)); -} - -static inline int lduw_le_p(const void *ptr) -{ - return (uint16_t)le_bswap(lduw_p(ptr), 16); -} - -static inline int ldsw_le_p(const void *ptr) -{ - return (int16_t)le_bswap(lduw_p(ptr), 16); -} - -static inline int ldl_le_p(const void *ptr) -{ - return le_bswap(ldl_p(ptr), 32); -} - -static inline uint64_t ldq_le_p(const void *ptr) -{ - return le_bswap(ldq_p(ptr), 64); -} - -static inline void stw_le_p(void *ptr, int v) -{ - stw_p(ptr, le_bswap(v, 16)); -} - -static inline void stl_le_p(void *ptr, int v) -{ - stl_p(ptr, le_bswap(v, 32)); -} - -static inline void stq_le_p(void *ptr, uint64_t v) -{ - stq_p(ptr, le_bswap(v, 64)); -} - -/* float access */ - -static inline float32 ldfl_le_p(const void *ptr) -{ - CPU_FloatU u; - u.l = ldl_le_p(ptr); - return u.f; -} - -static inline void stfl_le_p(void *ptr, float32 v) -{ - CPU_FloatU u; - u.f = v; - stl_le_p(ptr, u.l); -} - -static inline float64 ldfq_le_p(const void *ptr) -{ - CPU_DoubleU u; - u.ll = ldq_le_p(ptr); - return u.d; -} - -static inline void stfq_le_p(void *ptr, float64 v) -{ - CPU_DoubleU u; - u.d = v; - stq_le_p(ptr, u.ll); -} - -static inline int lduw_be_p(const void *ptr) -{ - return (uint16_t)be_bswap(lduw_p(ptr), 16); -} - -static inline int ldsw_be_p(const void *ptr) -{ - return (int16_t)be_bswap(lduw_p(ptr), 16); -} - -static inline int ldl_be_p(const void *ptr) -{ - return be_bswap(ldl_p(ptr), 32); -} - -static inline uint64_t ldq_be_p(const void *ptr) -{ - return be_bswap(ldq_p(ptr), 64); -} - -static inline void stw_be_p(void *ptr, int v) -{ - stw_p(ptr, be_bswap(v, 16)); -} - -static inline void stl_be_p(void *ptr, int v) -{ - stl_p(ptr, be_bswap(v, 32)); -} - -static inline void stq_be_p(void *ptr, uint64_t v) -{ - stq_p(ptr, be_bswap(v, 64)); -} - -/* float access */ - -static inline float32 ldfl_be_p(const void *ptr) -{ - CPU_FloatU u; - u.l = ldl_be_p(ptr); - return u.f; -} - -static inline void stfl_be_p(void *ptr, float32 v) -{ - CPU_FloatU u; - u.f = v; - stl_be_p(ptr, u.l); -} - -static inline float64 ldfq_be_p(const void *ptr) -{ - CPU_DoubleU u; - u.ll = ldq_be_p(ptr); - return u.d; -} - -static inline void stfq_be_p(void *ptr, float64 v) -{ - CPU_DoubleU u; - u.d = v; - stq_be_p(ptr, u.ll); -} - -/* Legacy unaligned versions. Note that we never had a complete set. */ - -static inline void cpu_to_le16wu(uint16_t *p, uint16_t v) -{ - stw_le_p(p, v); -} - -static inline void cpu_to_le32wu(uint32_t *p, uint32_t v) -{ - stl_le_p(p, v); -} - -static inline uint16_t le16_to_cpupu(const uint16_t *p) -{ - return lduw_le_p(p); -} - -static inline uint32_t le32_to_cpupu(const uint32_t *p) -{ - return ldl_le_p(p); -} - -static inline uint32_t be32_to_cpupu(const uint32_t *p) -{ - return ldl_be_p(p); -} - -static inline void cpu_to_be16wu(uint16_t *p, uint16_t v) -{ - stw_be_p(p, v); -} - -static inline void cpu_to_be32wu(uint32_t *p, uint32_t v) -{ - stl_be_p(p, v); -} - -static inline void cpu_to_be64wu(uint64_t *p, uint64_t v) -{ - stq_be_p(p, v); -} - -static inline void cpu_to_32wu(uint32_t *p, uint32_t v) -{ - stl_p(p, v); -} - -static inline unsigned long leul_to_cpu(unsigned long v) -{ - /* In order to break an include loop between here and - qemu-common.h, don't rely on HOST_LONG_BITS. */ -#if ULONG_MAX == UINT32_MAX - return le_bswap(v, 32); -#elif ULONG_MAX == UINT64_MAX - return le_bswap(v, 64); -#else -# error Unknown sizeof long -#endif -} - -#undef le_bswap -#undef be_bswap -#undef le_bswaps -#undef be_bswaps - -#endif /* BSWAP_H */ |