remove cryptopp dependency, add simple unittest for SHA256Transform()

[novacoin.git] / src / cryptopp / cpu.cpp

diff --git a/src/cryptopp/cpu.cpp b/src/cryptopp/cpu.cpp
deleted file mode 100644 (file)
index 8789dc3..0000000
--- a/src/cryptopp/cpu.cpp
+++ /dev/null
@@ -1,199 +0,0 @@
-// cpu.cpp - written and placed in the public domain by Wei Dai
-
-#include "pch.h"
-
-#ifndef CRYPTOPP_IMPORTS
-
-#include "cpu.h"
-#include "misc.h"
-#include <algorithm>
-
-#ifdef __GNUC__
-#include <signal.h>
-#include <setjmp.h>
-#endif
-
-#ifdef CRYPTOPP_MSVC6PP_OR_LATER
-#include <emmintrin.h>
-#endif
-
-NAMESPACE_BEGIN(CryptoPP)
-
-#ifdef CRYPTOPP_X86_ASM_AVAILABLE
-
-#ifndef _MSC_VER
-typedef void (*SigHandler)(int);
-
-static jmp_buf s_jmpNoCPUID;
-static void SigIllHandlerCPUID(int)
-{
-       longjmp(s_jmpNoCPUID, 1);
-}
-#endif
-
-bool CpuId(word32 input, word32 *output)
-{
-#ifdef _MSC_VER
-    __try
-       {
-               __asm
-               {
-                       mov eax, input
-                       cpuid
-                       mov edi, output
-                       mov [edi], eax
-                       mov [edi+4], ebx
-                       mov [edi+8], ecx
-                       mov [edi+12], edx
-               }
-       }
-    __except (1)
-       {
-               return false;
-    }
-       return true;
-#else
-       SigHandler oldHandler = signal(SIGILL, SigIllHandlerCPUID);
-       if (oldHandler == SIG_ERR)
-               return false;
-
-       bool result = true;
-       if (setjmp(s_jmpNoCPUID))
-               result = false;
-       else
-       {
-               __asm__
-               (
-                       // save ebx in case -fPIC is being used
-#if CRYPTOPP_BOOL_X86
-                       "push %%ebx; cpuid; mov %%ebx, %%edi; pop %%ebx"
-#else
-                       "pushq %%rbx; cpuid; mov %%ebx, %%edi; popq %%rbx"
-#endif
-                       : "=a" (output[0]), "=D" (output[1]), "=c" (output[2]), "=d" (output[3])
-                       : "a" (input)
-               );
-       }
-
-       signal(SIGILL, oldHandler);
-       return result;
-#endif
-}
-
-#if !CRYPTOPP_BOOL_X64 && !defined(_MSC_VER) && defined(__GNUC__)
-static jmp_buf s_jmpNoSSE2;
-static void SigIllHandlerSSE2(int)
-{
-       longjmp(s_jmpNoSSE2, 1);
-}
-#endif
-
-#elif _MSC_VER >= 1400 && CRYPTOPP_BOOL_X64
-
-bool CpuId(word32 input, word32 *output)
-{
-       __cpuid((int *)output, input);
-       return true;
-}
-
-#endif
-
-#ifdef CRYPTOPP_CPUID_AVAILABLE
-
-static bool TrySSE2()
-{
-#if CRYPTOPP_BOOL_X64
-       return true;
-#elif defined(_MSC_VER)
-    __try
-       {
-#if CRYPTOPP_BOOL_SSE2_ASM_AVAILABLE
-        AS2(por xmm0, xmm0)        // executing SSE2 instruction
-#elif CRYPTOPP_BOOL_SSE2_INTRINSICS_AVAILABLE
-               __mm128i x = _mm_setzero_si128();
-               return _mm_cvtsi128_si32(x) == 0;
-#endif
-       }
-    __except (1)
-       {
-               return false;
-    }
-       return true;
-#elif defined(__GNUC__)
-       SigHandler oldHandler = signal(SIGILL, SigIllHandlerSSE2);
-       if (oldHandler == SIG_ERR)
-               return false;
-
-       bool result = true;
-       if (setjmp(s_jmpNoSSE2))
-               result = false;
-       else
-       {
-#if CRYPTOPP_BOOL_SSE2_ASM_AVAILABLE
-               __asm __volatile ("por %xmm0, %xmm0");
-#elif CRYPTOPP_BOOL_SSE2_INTRINSICS_AVAILABLE
-               __mm128i x = _mm_setzero_si128();
-               result = _mm_cvtsi128_si32(x) == 0;
-#endif
-       }
-
-       signal(SIGILL, oldHandler);
-       return result;
-#else
-       return false;
-#endif
-}
-
-bool g_x86DetectionDone = false;
-bool g_hasISSE = false, g_hasSSE2 = false, g_hasSSSE3 = false, g_hasMMX = false, g_isP4 = false;
-word32 g_cacheLineSize = CRYPTOPP_L1_CACHE_LINE_SIZE;
-
-void DetectX86Features()
-{
-       word32 cpuid[4], cpuid1[4];
-       if (!CpuId(0, cpuid))
-               return;
-       if (!CpuId(1, cpuid1))
-               return;
-
-       g_hasMMX = (cpuid1[3] & (1 << 23)) != 0;
-       if ((cpuid1[3] & (1 << 26)) != 0)
-               g_hasSSE2 = TrySSE2();
-       g_hasSSSE3 = g_hasSSE2 && (cpuid1[2] & (1<<9));
-
-       if ((cpuid1[3] & (1 << 25)) != 0)
-               g_hasISSE = true;
-       else
-       {
-               word32 cpuid2[4];
-               CpuId(0x080000000, cpuid2);
-               if (cpuid2[0] >= 0x080000001)
-               {
-                       CpuId(0x080000001, cpuid2);
-                       g_hasISSE = (cpuid2[3] & (1 << 22)) != 0;
-               }
-       }
-
-       std::swap(cpuid[2], cpuid[3]);
-       if (memcmp(cpuid+1, "GenuineIntel", 12) == 0)
-       {
-               g_isP4 = ((cpuid1[0] >> 8) & 0xf) == 0xf;
-               g_cacheLineSize = 8 * GETBYTE(cpuid1[1], 1);
-       }
-       else if (memcmp(cpuid+1, "AuthenticAMD", 12) == 0)
-       {
-               CpuId(0x80000005, cpuid);
-               g_cacheLineSize = GETBYTE(cpuid[2], 0);
-       }
-
-       if (!g_cacheLineSize)
-               g_cacheLineSize = CRYPTOPP_L1_CACHE_LINE_SIZE;
-
-       g_x86DetectionDone = true;
-}
-
-#endif
-
-NAMESPACE_END
-
-#endif