zydis/Examples/PerformanceTest/Main.cpp

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/**************************************************************************************************
Verteron Disassembler Engine
Version 1.0
Remarks : Freeware, Copyright must be included
Original Author : Florian Bernd
Modifications :
Last change : 29. October 2014
* Permission is hereby granted, free of charge, to any person obtaining a copy
* of this software and associated documentation files (the "Software"), to deal
* in the Software without restriction, including without limitation the rights
* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
* copies of the Software, and to permit persons to whom the Software is
* furnished to do so, subject to the following conditions:
*
* The above copyright notice and this permission notice shall be included in all
* copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
* SOFTWARE.
**************************************************************************************************/
#include <tchar.h>
#include <iostream>
#include <iomanip>
#include "VXDisassembler.h"
#include <Windows.h>
using namespace Verteron;
using namespace Disassembler;
void testDecodingAndFormatting(uintptr_t baseAddress, PIMAGE_NT_HEADERS ntHeaders)
{
uint32_t sizeTotal = 0;
VXInstructionInfo info;
VXInstructionDecoder decoder;
VXIntelInstructionFormatter formatter;
#ifdef _M_X64
decoder.setDisassemblerMode(VXDisassemblerMode::M32BIT);
#else
decoder.setDisassemblerMode(VXDisassemblerMode::M64BIT);
#endif
while (sizeTotal < 1024 * 1024 * 50)
{
PIMAGE_SECTION_HEADER sectionHeader =
reinterpret_cast<PIMAGE_SECTION_HEADER>(
reinterpret_cast<uintptr_t>(ntHeaders) + sizeof(IMAGE_NT_HEADERS)
+ ntHeaders->FileHeader.SizeOfOptionalHeader - sizeof(IMAGE_OPTIONAL_HEADER));
// Decode and format all code sections
for (unsigned int i = 0; i < ntHeaders->FileHeader.NumberOfSections; ++i)
{
if (sectionHeader->Characteristics & IMAGE_SCN_CNT_CODE)
{
VXMemoryDataSource input(reinterpret_cast<const void*>(
baseAddress + sectionHeader->VirtualAddress), sectionHeader->SizeOfRawData);
decoder.setDataSource(&input);
decoder.setInstructionPointer(baseAddress + sectionHeader->VirtualAddress);
while (decoder.decodeInstruction(info))
{
formatter.formatInstruction(info);
}
sizeTotal += sectionHeader->SizeOfRawData;
}
sectionHeader++;
}
}
}
int _tmain(int argc, _TCHAR* argv[])
{
// Find kernel32.dll in memory
void *ntdllBase = GetModuleHandle(L"kernel32.dll");
PIMAGE_DOS_HEADER dosHeader = static_cast<PIMAGE_DOS_HEADER>(ntdllBase);
if (dosHeader->e_magic != IMAGE_DOS_SIGNATURE)
{
std::cout << "Error: kernel32.dll is corrupted.";
return 1;
}
PIMAGE_NT_HEADERS ntHeaders =
reinterpret_cast<PIMAGE_NT_HEADERS>(
reinterpret_cast<uintptr_t>(dosHeader) + dosHeader->e_lfanew);
if (ntHeaders->Signature != IMAGE_NT_SIGNATURE)
{
std::cout << "Error: kernel32.dll is corrupted.";
return 1;
}
double pcFrequency;
uint64_t pcStart;
LARGE_INTEGER li;
// Start the performance counter
if (!QueryPerformanceFrequency(&li))
{
std::cout << "Error: QueryPerformanceFrequency failed.";
return 1;
}
pcFrequency = static_cast<double>(li.QuadPart) / 1000.0;
if (!QueryPerformanceCounter(&li))
{
std::cout << "Error: QueryPerformanceCounter failed.";
return 1;
}
pcStart = li.QuadPart;
// Perform decoding test
testDecodingAndFormatting(reinterpret_cast<uintptr_t>(ntdllBase), ntHeaders);
// Stop the performance counter
if (!QueryPerformanceCounter(&li))
{
std::cout << "Error: QueryPerformanceCounter failed.";
return 1;
}
std::cout << "Time: " << static_cast<double>(li.QuadPart - pcStart) / pcFrequency
<< std::endl;
std::cin.get();
return 0;
}