diff options
Diffstat (limited to 'Utilities/cmlibrhash/librhash/byte_order.h')
| -rw-r--r-- | Utilities/cmlibrhash/librhash/byte_order.h | 145 |
1 files changed, 106 insertions, 39 deletions
diff --git a/Utilities/cmlibrhash/librhash/byte_order.h b/Utilities/cmlibrhash/librhash/byte_order.h index d34a020b86..a58174bbfc 100644 --- a/Utilities/cmlibrhash/librhash/byte_order.h +++ b/Utilities/cmlibrhash/librhash/byte_order.h @@ -4,6 +4,19 @@ #include "ustd.h" #include <stdlib.h> +#if 0 +#if defined(__GLIBC__) +# include <endian.h> +#endif +#endif + +#if defined(__FreeBSD__) || defined(__DragonFly__) || defined(__APPLE__) +# include <sys/types.h> +#elif defined (__NetBSD__) || defined(__OpenBSD__) +# include <sys/param.h> +#endif + + #ifdef __cplusplus extern "C" { #endif @@ -26,8 +39,6 @@ extern "C" { # endif #endif - -/* detect CPU endianness */ #include <cm_kwiml.h> #if KWIML_ABI_ENDIAN_ID == KWIML_ABI_ENDIAN_ID_LITTLE # define CPU_LITTLE_ENDIAN @@ -37,8 +48,53 @@ extern "C" { # define CPU_BIG_ENDIAN # define IS_BIG_ENDIAN 1 # define IS_LITTLE_ENDIAN 0 +#endif + +#if 0 +#define RHASH_BYTE_ORDER_LE 1234 +#define RHASH_BYTE_ORDER_BE 4321 + +#if (defined(__BYTE_ORDER) && defined(__LITTLE_ENDIAN) && __BYTE_ORDER == __LITTLE_ENDIAN) || \ + (defined(__BYTE_ORDER__) && defined(__ORDER_LITTLE_ENDIAN__) && __BYTE_ORDER__ == __ORDER_LITTLE_ENDIAN__) +# define RHASH_BYTE_ORDER RHASH_BYTE_ORDER_LE +#elif (defined(__BYTE_ORDER) && defined(__BIG_ENDIAN) && __BYTE_ORDER == __BIG_ENDIAN) || \ + (defined(__BYTE_ORDER__) && defined(__ORDER_BIG_ENDIAN__) && __BYTE_ORDER__ == __ORDER_BIG_ENDIAN__) +# define RHASH_BYTE_ORDER RHASH_BYTE_ORDER_BE +#elif defined(_BYTE_ORDER) +# if defined(_LITTLE_ENDIAN) && (_BYTE_ORDER == _LITTLE_ENDIAN) +# define RHASH_BYTE_ORDER RHASH_BYTE_ORDER_LE +# elif defined(_BIG_ENDIAN) && (_BYTE_ORDER == _BIG_ENDIAN) +# define RHASH_BYTE_ORDER RHASH_BYTE_ORDER_BE +# endif +#elif defined(__sun) && defined(_LITTLE_ENDIAN) +# define RHASH_BYTE_ORDER RHASH_BYTE_ORDER_LE +#elif defined(__sun) && defined(_BIG_ENDIAN) +# define RHASH_BYTE_ORDER RHASH_BYTE_ORDER_BE +#endif + +/* try detecting endianness by CPU */ +#ifdef RHASH_BYTE_ORDER +#elif defined(CPU_IA32) || defined(CPU_X64) || defined(__ia64) || defined(__ia64__) || \ + defined(__alpha__) || defined(_M_ALPHA) || defined(vax) || defined(MIPSEL) || \ + defined(_ARM_) || defined(__arm__) +# define RHASH_BYTE_ORDER RHASH_BYTE_ORDER_LE +#elif defined(__sparc) || defined(__sparc__) || defined(sparc) || \ + defined(_ARCH_PPC) || defined(_ARCH_PPC64) || defined(_POWER) || \ + defined(__POWERPC__) || defined(POWERPC) || defined(__powerpc) || \ + defined(__powerpc__) || defined(__powerpc64__) || defined(__ppc__) || \ + defined(__hpux) || defined(_MIPSEB) || defined(mc68000) || \ + defined(__s390__) || defined(__s390x__) || defined(sel) +# define RHASH_BYTE_ORDER RHASH_BYTE_ORDER_BE #else -# error "Can't detect CPU architechture" +# error "Can't detect CPU architechture" +#endif + +#define IS_BIG_ENDIAN (RHASH_BYTE_ORDER == RHASH_BYTE_ORDER_BE) +#define IS_LITTLE_ENDIAN (RHASH_BYTE_ORDER == RHASH_BYTE_ORDER_LE) +#endif + +#ifndef __has_builtin +# define __has_builtin(x) 0 #endif #define IS_ALIGNED_32(p) (0 == (3 & ((const char*)(p) - (const char*)0))) @@ -56,11 +112,23 @@ extern "C" { #if defined(_MSC_VER) || defined(__BORLANDC__) #define I64(x) x##ui64 #else -#define I64(x) x##LL +#define I64(x) x##ULL #endif -/* convert a hash flag to index */ -#if __GNUC__ >= 4 || (__GNUC__ == 3 && __GNUC_MINOR__ >= 4) /* GCC < 3.4 */ +#if defined(_MSC_VER) +#define RHASH_INLINE __inline +#elif defined(__GNUC__) && !defined(__STRICT_ANSI__) +#define RHASH_INLINE inline +#elif defined(__GNUC__) +#define RHASH_INLINE __inline__ +#else +#define RHASH_INLINE +#endif + +/* define rhash_ctz - count traling zero bits */ +#if (defined(__GNUC__) && __GNUC__ >= 4 || (__GNUC__ == 3 && __GNUC_MINOR__ >= 4)) || \ + (defined(__clang__) && __has_builtin(__builtin_ctz)) +/* GCC >= 3.4 or clang */ # define rhash_ctz(x) __builtin_ctz(x) #else unsigned rhash_ctz(unsigned); /* define as function */ @@ -69,42 +137,31 @@ unsigned rhash_ctz(unsigned); /* define as function */ void rhash_swap_copy_str_to_u32(void* to, int index, const void* from, size_t length); void rhash_swap_copy_str_to_u64(void* to, int index, const void* from, size_t length); void rhash_swap_copy_u64_to_str(void* to, const void* from, size_t length); -void rhash_u32_mem_swap(unsigned *p, int length_in_u32); +void rhash_u32_mem_swap(unsigned* p, int length_in_u32); -#ifndef __has_builtin -# define __has_builtin(x) 0 -#endif - -/* define bswap_32 */ -#if defined(__GNUC__) && defined(CPU_IA32) && !defined(__i386__) -/* for intel x86 CPU */ -static inline uint32_t bswap_32(uint32_t x) { - __asm("bswap\t%0" : "=r" (x) : "0" (x)); - return x; -} -#elif defined(__GNUC__) && (__GNUC__ >= 4) && (__GNUC__ > 4 || __GNUC_MINOR__ >= 3) -/* for GCC >= 4.3 */ -# define bswap_32(x) __builtin_bswap32(x) -#elif defined(__clang__) && __has_builtin(__builtin_bswap32) +/* bswap definitions */ +#if (defined(__GNUC__) && (__GNUC__ >= 4) && (__GNUC__ > 4 || __GNUC_MINOR__ >= 3)) || \ + (defined(__clang__) && __has_builtin(__builtin_bswap32) && __has_builtin(__builtin_bswap64)) +/* GCC >= 4.3 or clang */ # define bswap_32(x) __builtin_bswap32(x) +# define bswap_64(x) __builtin_bswap64(x) #elif (_MSC_VER > 1300) && (defined(CPU_IA32) || defined(CPU_X64)) /* MS VC */ # define bswap_32(x) _byteswap_ulong((unsigned long)x) +# define bswap_64(x) _byteswap_uint64((__int64)x) #else -/* general bswap_32 definition */ -static uint32_t bswap_32(uint32_t x) { - x = ((x << 8) & 0xFF00FF00) | ((x >> 8) & 0x00FF00FF); +/* fallback to generic bswap definition */ +static RHASH_INLINE uint32_t bswap_32(uint32_t x) +{ +# if defined(__GNUC__) && defined(CPU_IA32) && !defined(__i386__) && !defined(RHASH_NO_ASM) + __asm("bswap\t%0" : "=r" (x) : "0" (x)); /* gcc x86 version */ + return x; +# else + x = ((x << 8) & 0xFF00FF00u) | ((x >> 8) & 0x00FF00FFu); return (x >> 16) | (x << 16); +# endif } -#endif /* bswap_32 */ - -#if defined(__GNUC__) && (__GNUC__ >= 4) && (__GNUC__ > 4 || __GNUC_MINOR__ >= 3) -# define bswap_64(x) __builtin_bswap64(x) -#elif defined(__clang__) && __has_builtin(__builtin_bswap64) -# define bswap_64(x) __builtin_bswap64(x) -#elif (_MSC_VER > 1300) && (defined(CPU_IA32) || defined(CPU_X64)) /* MS VC */ -# define bswap_64(x) _byteswap_uint64((__int64)x) -#else -static uint64_t bswap_64(uint64_t x) { +static RHASH_INLINE uint64_t bswap_64(uint64_t x) +{ union { uint64_t ll; uint32_t l[2]; @@ -114,9 +171,9 @@ static uint64_t bswap_64(uint64_t x) { r.l[1] = bswap_32(w.l[0]); return r.ll; } -#endif +#endif /* bswap definitions */ -#ifdef CPU_BIG_ENDIAN +#if IS_BIG_ENDIAN # define be2me_32(x) (x) # define be2me_64(x) (x) # define le2me_32(x) bswap_32(x) @@ -129,7 +186,7 @@ static uint64_t bswap_64(uint64_t x) { # define me64_to_be_str(to, from, length) memcpy((to), (from), (length)) # define me64_to_le_str(to, from, length) rhash_swap_copy_u64_to_str((to), (from), (length)) -#else /* CPU_BIG_ENDIAN */ +#else /* IS_BIG_ENDIAN */ # define be2me_32(x) bswap_32(x) # define be2me_64(x) bswap_64(x) # define le2me_32(x) (x) @@ -141,7 +198,7 @@ static uint64_t bswap_64(uint64_t x) { # define le64_copy(to, index, from, length) memcpy((to) + (index), (from), (length)) # define me64_to_be_str(to, from, length) rhash_swap_copy_u64_to_str((to), (from), (length)) # define me64_to_le_str(to, from, length) memcpy((to), (from), (length)) -#endif /* CPU_BIG_ENDIAN */ +#endif /* IS_BIG_ENDIAN */ /* ROTL/ROTR macros rotate a 32/64-bit word left/right by n bits */ #define ROTL32(dword, n) ((dword) << (n) ^ ((dword) >> (32 - (n)))) @@ -149,6 +206,16 @@ static uint64_t bswap_64(uint64_t x) { #define ROTL64(qword, n) ((qword) << (n) ^ ((qword) >> (64 - (n)))) #define ROTR64(qword, n) ((qword) >> (n) ^ ((qword) << (64 - (n)))) +#define CPU_FEATURE_SSE4_2 (52) + +#if defined(__GNUC__) && (__GNUC__ > 4 || (__GNUC__ == 4 && __GNUC_MINOR__ >= 3)) \ + && (defined(CPU_X64) || defined(CPU_IA32)) +# define HAS_INTEL_CPUID +int has_cpu_feature(unsigned feature_bit); +#else +# define has_cpu_feature(x) (0) +#endif + #ifdef __cplusplus } /* extern "C" */ #endif /* __cplusplus */ |