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initial disasm class using zydis

This commit is contained in:
georgemoralis 2023-05-30 13:33:52 +03:00
parent b124bac0f7
commit dfc234f363
4 changed files with 60 additions and 2 deletions
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2
CMakeLists.txt
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@ -33,7 +33,7 @@ add_executable(shadps4
src/Core/Memory.h
src/Core/PS4/Linker.cpp
src/Core/PS4/Linker.h
"src/Util/Singleton.h")
"src/Util/Singleton.h" "src/Util/Disassembler.cpp" "src/Util/Disassembler.h")
find_package(OpenGL REQUIRED)

33
src/Util/Disassembler.cpp Normal file
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@ -0,0 +1,33 @@
#include "Disassembler.h"
#include <stdio.h>
Disassembler::Disassembler()
{
ZydisDecoderInit(&m_decoder, ZYDIS_MACHINE_MODE_LONG_64, ZYDIS_STACK_WIDTH_64);
ZydisFormatterInit(&m_formatter, ZYDIS_FORMATTER_STYLE_INTEL);
}
Disassembler::~Disassembler()
{
}
void Disassembler::printInstruction(void* code)//print a single instruction
{
ZydisDecodedInstruction instruction;
ZydisDecodedOperand operands[ZYDIS_MAX_OPERAND_COUNT_VISIBLE];
ZyanStatus status = ZydisDecoderDecodeFull(&m_decoder, code, ZYDIS_MAX_INSTRUCTION_LENGTH,&instruction, operands);
if (!ZYAN_SUCCESS(status))
{
printf("decode instruction failed at %p\n", code);
printInst(instruction, operands);
}
}
void Disassembler::printInst(ZydisDecodedInstruction& inst, ZydisDecodedOperand* operands)
{
const int bufLen = 256;
char szBuffer[bufLen];
ZydisFormatterFormatInstruction(&m_formatter, &inst, operands,inst.operand_count_visible, szBuffer, sizeof(szBuffer), 0,NULL);
printf("instruction: %s\n", szBuffer);
}

16
src/Util/Disassembler.h Normal file
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@ -0,0 +1,16 @@
#pragma once
#include "zydis/Zydis.h"
class Disassembler
{
public:
Disassembler();
~Disassembler();
void printInst(ZydisDecodedInstruction& inst, ZydisDecodedOperand* operands);
void printInstruction(void* code);
private:
ZydisDecoder m_decoder;
ZydisFormatter m_formatter;
};

11
third-party/CMakeLists.txt vendored
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@ -19,11 +19,20 @@ target_include_directories(stb INTERFACE "${CMAKE_CURRENT_SOURCE_DIR}/stb")
set(SDL3_DIR ${CMAKE_CURRENT_SOURCE_DIR}/SDL)
add_subdirectory(${SDL3_DIR})
#================ Zydis ========================
# Register Zydis dependency.
# Disable build of tools and examples.
option(ZYDIS_BUILD_TOOLS "" OFF)
option(ZYDIS_BUILD_EXAMPLES "" OFF)
set(zydis_DIR ${CMAKE_CURRENT_SOURCE_DIR}/zydis)
add_subdirectory(${zydis_DIR})
#=================== IMGUI ===================
set(IMGUI_DIR ${CMAKE_CURRENT_SOURCE_DIR}/imgui)
add_library(IMGUI STATIC)
target_sources( IMGUI
PRIVATE
${IMGUI_DIR}/imgui_demo.cpp
@ -47,6 +56,6 @@ find_package(OpenGL REQUIRED)
target_link_libraries(IMGUI PUBLIC ${OPENGL_LIBRARIES})
target_link_libraries(IMGUI PUBLIC SDL3-shared ${CMAKE_DL_LIBS})
target_link_libraries(IMGUI PUBLIC SDL3-shared ${CMAKE_DL_LIBS} Zydis)