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Diffstat (limited to 'mysql/extra/yassl/taocrypt/src/misc.cpp')
| -rw-r--r-- | mysql/extra/yassl/taocrypt/src/misc.cpp | 297 |
1 files changed, 0 insertions, 297 deletions
diff --git a/mysql/extra/yassl/taocrypt/src/misc.cpp b/mysql/extra/yassl/taocrypt/src/misc.cpp deleted file mode 100644 index b576d3d..0000000 --- a/mysql/extra/yassl/taocrypt/src/misc.cpp +++ /dev/null @@ -1,297 +0,0 @@ -/* - Copyright (c) 2005, 2012, Oracle and/or its affiliates. All rights reserved. - - This program is free software; you can redistribute it and/or modify - it under the terms of the GNU General Public License as published by - the Free Software Foundation; version 2 of the License. - - This program is distributed in the hope that it will be useful, - but WITHOUT ANY WARRANTY; without even the implied warranty of - MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - GNU General Public License for more details. - - You should have received a copy of the GNU General Public License - along with this program; see the file COPYING. If not, write to the - Free Software Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, - MA 02110-1301 USA. -*/ - -/* based on Wei Dai's misc.cpp from CryptoPP */ - - -#include "runtime.hpp" -#include "misc.hpp" - - -#ifdef __GNUC__ - #include <signal.h> - #include <setjmp.h> -#endif - -#ifdef USE_SYS_STL - #include <algorithm> -#else - #include "algorithm.hpp" -#endif - -namespace STL = STL_NAMESPACE; - - -#ifdef YASSL_PURE_C - - void* operator new(size_t sz, TaoCrypt::new_t) - { - void* ptr = malloc(sz ? sz : 1); - if (!ptr) abort(); - - return ptr; - } - - - void operator delete(void* ptr, TaoCrypt::new_t) - { - if (ptr) free(ptr); - } - - - void* operator new[](size_t sz, TaoCrypt::new_t nt) - { - return ::operator new(sz, nt); - } - - - void operator delete[](void* ptr, TaoCrypt::new_t nt) - { - ::operator delete(ptr, nt); - } - - - /* uncomment to test - // make sure not using globals anywhere by forgetting to use overloaded - void* operator new(size_t sz); - - void operator delete(void* ptr); - - void* operator new[](size_t sz); - - void operator delete[](void* ptr); - */ - - - namespace TaoCrypt { - - new_t tc; // for library new - - } - -#ifdef __sun - -// Handler for pure virtual functions -namespace __Crun { - void pure_error() { - } -} - -#endif - -#if defined(__ICC) || defined(__INTEL_COMPILER) || (__GNUC__ > 2) - -extern "C" { - - int __cxa_pure_virtual() { - return 0; - } - -} // extern "C" - -#endif - -#endif // YASSL_PURE_C - - -namespace TaoCrypt { - - -inline void XorWords(word* r, const word* a, unsigned int n) -{ - for (unsigned int i=0; i<n; i++) - r[i] ^= a[i]; -} - - -void xorbuf(byte* buf, const byte* mask, unsigned int count) -{ - if (((size_t)buf | (size_t)mask | count) % WORD_SIZE == 0) - XorWords((word *)buf, (const word *)mask, count/WORD_SIZE); - else - { - for (unsigned int i=0; i<count; i++) - buf[i] ^= mask[i]; - } -} - - -unsigned int BytePrecision(word value) -{ - unsigned int i; - for (i=sizeof(value); i; --i) - if (value >> (i-1)*8) - break; - - return i; -} - - -unsigned int BitPrecision(word value) -{ - if (!value) - return 0; - - unsigned int l = 0, - h = 8 * sizeof(value); - - while (h-l > 1) - { - unsigned int t = (l+h)/2; - if (value >> t) - l = t; - else - h = t; - } - - return h; -} - - -word Crop(word value, unsigned int size) -{ - if (size < 8*sizeof(value)) - return (value & ((1L << size) - 1)); - else - return value; -} - - - -#ifdef TAOCRYPT_X86ASM_AVAILABLE - - -bool HaveCpuId() -{ -#ifdef _MSC_VER - __try - { - __asm - { - mov eax, 0 - cpuid - } - } - __except (1) - { - return false; - } - return true; -#else - word32 eax, ebx; - __asm__ __volatile - ( - /* Put EFLAGS in eax and ebx */ - "pushf;" - "pushf;" - "pop %0;" - "movl %0,%1;" - - /* Flip the cpuid bit and store back in EFLAGS */ - "xorl $0x200000,%0;" - "push %0;" - "popf;" - - /* Read EFLAGS again */ - "pushf;" - "pop %0;" - "popf" - : "=r" (eax), "=r" (ebx) - : - : "cc" - ); - - if (eax == ebx) - return false; - return true; -#endif -} - - -void CpuId(word32 input, word32 *output) -{ -#ifdef __GNUC__ - __asm__ - ( - // save ebx in case -fPIC is being used - "push %%ebx; cpuid; mov %%ebx, %%edi; pop %%ebx" - : "=a" (output[0]), "=D" (output[1]), "=c" (output[2]), "=d"(output[3]) - : "a" (input) - ); -#else - __asm - { - mov eax, input - cpuid - mov edi, output - mov [edi], eax - mov [edi+4], ebx - mov [edi+8], ecx - mov [edi+12], edx - } -#endif -} - - -bool IsPentium() -{ - if (!HaveCpuId()) - return false; - - word32 cpuid[4]; - - CpuId(0, cpuid); - STL::swap(cpuid[2], cpuid[3]); - if (memcmp(cpuid+1, "GenuineIntel", 12) != 0) - return false; - - CpuId(1, cpuid); - byte family = ((cpuid[0] >> 8) & 0xf); - if (family < 5) - return false; - - return true; -} - - - -static bool IsMmx() -{ - if (!IsPentium()) - return false; - - word32 cpuid[4]; - - CpuId(1, cpuid); - if ((cpuid[3] & (1 << 23)) == 0) - return false; - - return true; -} - - -bool isMMX = IsMmx(); - - -#endif // TAOCRYPT_X86ASM_AVAILABLE - - - - -} // namespace - |