13#if (CRYPTOPP_SSE42_AVAILABLE)
14# include <nmmintrin.h>
18#if (CRYPTOPP_ARM_NEON_AVAILABLE) && !defined(_M_ARM64)
22#if (CRYPTOPP_ARM_ACLE_AVAILABLE)
27#ifdef CRYPTOPP_GNU_STYLE_INLINE_ASSEMBLY
32#ifndef EXCEPTION_EXECUTE_HANDLER
33# define EXCEPTION_EXECUTE_HANDLER 1
37extern const char CRC_SIMD_FNAME[] = __FILE__;
41#ifdef CRYPTOPP_GNU_STYLE_INLINE_ASSEMBLY
43 typedef void (*SigHandler)(int);
45 static jmp_buf s_jmpSIGILL;
46 static void SigIllHandler(
int)
48 longjmp(s_jmpSIGILL, 1);
53#if (CRYPTOPP_BOOL_ARM32 || CRYPTOPP_BOOL_ARMV8)
57#if defined(CRYPTOPP_NO_CPU_FEATURE_PROBES)
59#elif (CRYPTOPP_ARM_CRC32_AVAILABLE)
60# if defined(CRYPTOPP_MS_STYLE_INLINE_ASSEMBLY)
61 volatile bool result =
true;
64 word32 w=0, x=1; word16 y=2;
byte z=3;
74 __except (EXCEPTION_EXECUTE_HANDLER)
83 volatile bool result =
true;
85 volatile SigHandler oldHandler = signal(SIGILL, SigIllHandler);
86 if (oldHandler == SIG_ERR)
89 volatile sigset_t oldMask;
90 if (sigprocmask(0, NULLPTR, (sigset_t*)&oldMask))
93 if (setjmp(s_jmpSIGILL))
97 word32 w=0, x=1; word16 y=2;
byte z=3;
109 sigprocmask(SIG_SETMASK, (sigset_t*)&oldMask, NULLPTR);
110 signal(SIGILL, oldHandler);
119#if (CRYPTOPP_ARM_CRC32_AVAILABLE)
120void CRC32_Update_ARMV8(
const byte *s,
size_t n, word32& c)
122 for(; !IsAligned<word32>(s) && n > 0; s++, n--)
125 for(; n > 4; s+=4, n-=4)
126 c = __crc32w(c, *(
const word32 *)(
void*)s);
128 for(; n > 0; s++, n--)
132void CRC32C_Update_ARMV8(
const byte *s,
size_t n, word32& c)
134 for(; !IsAligned<word32>(s) && n > 0; s++, n--)
135 c = __crc32cb(c, *s);
137 for(; n > 4; s+=4, n-=4)
138 c = __crc32cw(c, *(
const word32 *)(
void*)s);
140 for(; n > 0; s++, n--)
141 c = __crc32cb(c, *s);
145#if (CRYPTOPP_SSE42_AVAILABLE)
146void CRC32C_Update_SSE42(
const byte *s,
size_t n, word32& c)
148 for(; !IsAligned<word32>(s) && n > 0; s++, n--)
149 c = _mm_crc32_u8(c, *s);
151 for(; n > 4; s+=4, n-=4)
152 c = _mm_crc32_u32(c, *(
const word32 *)(
void*)s);
154 for(; n > 0; s++, n--)
155 c = _mm_crc32_u8(c, *s);
Library configuration file.
Utility functions for the Crypto++ library.
Crypto++ library namespace.