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Added the capstone disassembler and a disassembler window
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| Original file line number | Diff line number | Diff line change |
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| #pragma once | ||
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| #include "views/view.hpp" | ||
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| #include <capstone/capstone.h> | ||
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| #include <cstdio> | ||
| #include <string> | ||
| #include <vector> | ||
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| namespace hex { | ||
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| namespace prv { class Provider; } | ||
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| struct Disassembly { | ||
| u64 address; | ||
| u64 offset; | ||
| std::string bytes; | ||
| std::string opcodeString; | ||
| }; | ||
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| class ViewDisassembler : public View { | ||
| public: | ||
| explicit ViewDisassembler(prv::Provider* &dataProvider); | ||
| ~ViewDisassembler() override; | ||
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| void createView() override; | ||
| void createMenu() override; | ||
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| private: | ||
| prv::Provider* &m_dataProvider; | ||
| bool m_windowOpen = true; | ||
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| bool m_shouldInvalidate = false; | ||
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| u64 m_baseAddress = 0; | ||
| u64 m_codeOffset = 0; | ||
| u64 m_codeSize = 0; | ||
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| cs_arch m_architecture = CS_ARCH_ARM; | ||
| cs_mode m_modeBasicARM = cs_mode(0), m_modeExtraARM = cs_mode(0), m_modeBasicMIPS = cs_mode(0), m_modeBasicPPC = cs_mode(0), m_modeBasicX86 = cs_mode(0); | ||
| bool m_littleEndianMode = true, m_micoMode = false, m_sparcV9Mode = false; | ||
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| std::vector<Disassembly> m_disassembly; | ||
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| }; | ||
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| } |
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,268 @@ | ||
| #include "views/view_disassembler.hpp" | ||
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| #include "providers/provider.hpp" | ||
| #include "utils.hpp" | ||
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| #include <cstring> | ||
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| using namespace std::literals::string_literals; | ||
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| namespace hex { | ||
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| ViewDisassembler::ViewDisassembler(prv::Provider* &dataProvider) : View(), m_dataProvider(dataProvider) { | ||
| View::subscribeEvent(Events::DataChanged, [this](const void*){ | ||
| this->m_shouldInvalidate = true; | ||
| }); | ||
| } | ||
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| ViewDisassembler::~ViewDisassembler() { | ||
| View::unsubscribeEvent(Events::DataChanged); | ||
| } | ||
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| void ViewDisassembler::createView() { | ||
| if (!this->m_windowOpen) | ||
| return; | ||
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| if (this->m_shouldInvalidate) { | ||
| this->m_disassembly.clear(); | ||
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| csh capstoneHandle; | ||
| cs_insn *instructions = nullptr; | ||
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| cs_mode mode = cs_mode(this->m_modeBasicARM | this->m_modeExtraARM | this->m_modeBasicMIPS | this->m_modeBasicX86 | this->m_modeBasicPPC); | ||
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| if (this->m_littleEndianMode) | ||
| mode = cs_mode(mode | CS_MODE_LITTLE_ENDIAN); | ||
| else | ||
| mode = cs_mode(mode | CS_MODE_BIG_ENDIAN); | ||
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| if (this->m_micoMode) | ||
| mode = cs_mode(mode | CS_MODE_MICRO); | ||
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| if (this->m_sparcV9Mode) | ||
| mode = cs_mode(mode | CS_MODE_V9); | ||
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| if (cs_open(this->m_architecture, mode, &capstoneHandle) == CS_ERR_OK) { | ||
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| std::vector<u8> buffer(2048, 0x00); | ||
| for (u64 address = 0; address < this->m_codeSize; address += 2048) { | ||
| size_t bufferSize = std::min(u64(2048), this->m_codeSize - address); | ||
| this->m_dataProvider->read(this->m_codeOffset + address, buffer.data(), bufferSize); | ||
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| size_t instructionCount = cs_disasm(capstoneHandle, buffer.data(), buffer.size(), this->m_baseAddress + address, 0, &instructions); | ||
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| if (instructionCount == 0) | ||
| break; | ||
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| u64 usedBytes = 0; | ||
| for (u32 instr = 0; instr < instructionCount; instr++) { | ||
| Disassembly disassembly = { 0 }; | ||
| disassembly.address = instructions[instr].address; | ||
| disassembly.offset = this->m_codeOffset + address + usedBytes; | ||
| disassembly.opcodeString = instructions[instr].mnemonic + " "s + instructions[instr].op_str; | ||
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| for (u8 i = 0; i < instructions[instr].size; i++) | ||
| disassembly.bytes += hex::format("%02X ", instructions[instr].bytes[i]); | ||
| disassembly.bytes.pop_back(); | ||
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| this->m_disassembly.push_back(disassembly); | ||
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| usedBytes += instructions[instr].size; | ||
| } | ||
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| if (instructionCount < bufferSize) | ||
| address -= (bufferSize - usedBytes); | ||
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| cs_free(instructions, instructionCount); | ||
| } | ||
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| cs_close(&capstoneHandle); | ||
| } | ||
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| this->m_shouldInvalidate = false; | ||
| } | ||
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| if (ImGui::Begin("Disassembler", &this->m_windowOpen)) { | ||
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| if (this->m_dataProvider != nullptr && this->m_dataProvider->isReadable()) { | ||
| constexpr static const char * const ArchitectureNames[] = { "ARM32", "ARM64", "MIPS", "x86", "PowerPC", "Sparc", "SystemZ", "XCore", "68K", "TMS320C64x", "680X", "Ethereum" }; | ||
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| ImGui::InputScalar("Base address", ImGuiDataType_U64, &this->m_baseAddress, nullptr, nullptr, "%llx", ImGuiInputTextFlags_CharsHexadecimal); | ||
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| ImGui::NewLine(); | ||
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| ImGui::InputScalar("Code start offset", ImGuiDataType_U64, &this->m_codeOffset, nullptr, nullptr, "%llx", ImGuiInputTextFlags_CharsHexadecimal); | ||
| ImGui::InputScalar("Code size", ImGuiDataType_U64, &this->m_codeSize, nullptr, nullptr, "%llx", ImGuiInputTextFlags_CharsHexadecimal); | ||
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| ImGui::NewLine(); | ||
| ImGui::Separator(); | ||
| ImGui::NewLine(); | ||
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| ImGui::Combo("Architecture", reinterpret_cast<int*>(&this->m_architecture), ArchitectureNames, 12); | ||
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| if (ImGui::BeginChild("modes", ImVec2(0, 100), true)) { | ||
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| if (ImGui::RadioButton("Little Endian", this->m_littleEndianMode)) | ||
| this->m_littleEndianMode = true; | ||
| ImGui::SameLine(); | ||
| if (ImGui::RadioButton("Big Endian", !this->m_littleEndianMode)) | ||
| this->m_littleEndianMode = false; | ||
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| ImGui::NewLine(); | ||
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| switch (this->m_architecture) { | ||
| case CS_ARCH_ARM: | ||
| this->m_modeBasicMIPS = cs_mode(0); | ||
| this->m_modeBasicX86 = cs_mode(0); | ||
| this->m_modeBasicPPC = cs_mode(0); | ||
| this->m_micoMode = false; | ||
| this->m_sparcV9Mode = false; | ||
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| if (ImGui::RadioButton("ARM mode", this->m_modeBasicARM == CS_MODE_ARM)) | ||
| this->m_modeBasicARM = CS_MODE_ARM; | ||
| ImGui::SameLine(); | ||
| if (ImGui::RadioButton("Thumb mode", this->m_modeBasicARM == CS_MODE_THUMB)) | ||
| this->m_modeBasicARM = CS_MODE_THUMB; | ||
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| if (ImGui::RadioButton("Default mode", (this->m_modeExtraARM & (CS_MODE_MCLASS | CS_MODE_V8)) == 0)) | ||
| this->m_modeExtraARM = cs_mode(0); | ||
| ImGui::SameLine(); | ||
| if (ImGui::RadioButton("Cortex-M mode", (this->m_modeExtraARM & (CS_MODE_MCLASS | CS_MODE_V8)) == CS_MODE_MCLASS)) | ||
| this->m_modeExtraARM = CS_MODE_MCLASS; | ||
| ImGui::SameLine(); | ||
| if (ImGui::RadioButton("ARMv8 mode", (this->m_modeExtraARM & (CS_MODE_MCLASS | CS_MODE_V8)) == CS_MODE_V8)) | ||
| this->m_modeExtraARM = CS_MODE_V8; | ||
| break; | ||
| case CS_ARCH_MIPS: | ||
| this->m_modeBasicARM = cs_mode(0); | ||
| this->m_modeExtraARM = cs_mode(0); | ||
| this->m_modeBasicX86 = cs_mode(0); | ||
| this->m_modeBasicPPC = cs_mode(0); | ||
| this->m_sparcV9Mode = false; | ||
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| if (ImGui::RadioButton("MIPS32 mode", this->m_modeBasicMIPS == CS_MODE_MIPS32)) | ||
| this->m_modeBasicMIPS = CS_MODE_MIPS32; | ||
| ImGui::SameLine(); | ||
| if (ImGui::RadioButton("MIPS64 mode", this->m_modeBasicMIPS == CS_MODE_MIPS64)) | ||
| this->m_modeBasicMIPS = CS_MODE_MIPS64; | ||
| ImGui::SameLine(); | ||
| if (ImGui::RadioButton("MIPS32R6 mode", this->m_modeBasicMIPS == CS_MODE_MIPS32R6)) | ||
| this->m_modeBasicMIPS = CS_MODE_MIPS32R6; | ||
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| ImGui::Checkbox("Micro Mode", &this->m_micoMode); | ||
| break; | ||
| case CS_ARCH_X86: | ||
| this->m_modeBasicARM = cs_mode(0); | ||
| this->m_modeExtraARM = cs_mode(0); | ||
| this->m_modeBasicMIPS = cs_mode(0); | ||
| this->m_modeBasicPPC = cs_mode(0); | ||
| this->m_micoMode = false; | ||
| this->m_sparcV9Mode = false; | ||
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| if (ImGui::RadioButton("16-bit mode", this->m_modeBasicX86 == CS_MODE_16)) | ||
| this->m_modeBasicX86 = CS_MODE_16; | ||
| ImGui::SameLine(); | ||
| if (ImGui::RadioButton("32-bit mode", this->m_modeBasicX86 == CS_MODE_32)) | ||
| this->m_modeBasicX86 = CS_MODE_32; | ||
| ImGui::SameLine(); | ||
| if (ImGui::RadioButton("64-bit mode", this->m_modeBasicX86 == CS_MODE_64)) | ||
| this->m_modeBasicX86 = CS_MODE_64; | ||
| break; | ||
| case CS_ARCH_PPC: | ||
| this->m_modeBasicARM = cs_mode(0); | ||
| this->m_modeExtraARM = cs_mode(0); | ||
| this->m_modeBasicMIPS = cs_mode(0); | ||
| this->m_modeBasicX86 = cs_mode(0); | ||
| this->m_micoMode = false; | ||
| this->m_sparcV9Mode = false; | ||
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| if (ImGui::RadioButton("32-bit mode", this->m_modeBasicPPC == CS_MODE_32)) | ||
| this->m_modeBasicPPC = CS_MODE_32; | ||
| ImGui::SameLine(); | ||
| if (ImGui::RadioButton("64-bit mode", this->m_modeBasicPPC == CS_MODE_64)) | ||
| this->m_modeBasicPPC = CS_MODE_64; | ||
| break; | ||
| case CS_ARCH_SPARC: | ||
| this->m_modeBasicARM = cs_mode(0); | ||
| this->m_modeExtraARM = cs_mode(0); | ||
| this->m_modeBasicMIPS = cs_mode(0); | ||
| this->m_modeBasicX86 = cs_mode(0); | ||
| this->m_modeBasicPPC = cs_mode(0); | ||
| this->m_micoMode = false; | ||
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| ImGui::Checkbox("Sparc V9 mode", &this->m_sparcV9Mode); | ||
| break; | ||
| case CS_ARCH_ARM64: | ||
| case CS_ARCH_SYSZ: | ||
| case CS_ARCH_XCORE: | ||
| case CS_ARCH_M68K: | ||
| case CS_ARCH_TMS320C64X: | ||
| case CS_ARCH_M680X: | ||
| case CS_ARCH_EVM: | ||
| this->m_modeBasicARM = cs_mode(0); | ||
| this->m_modeExtraARM = cs_mode(0); | ||
| this->m_modeBasicMIPS = cs_mode(0); | ||
| this->m_modeBasicX86 = cs_mode(0); | ||
| this->m_modeBasicPPC = cs_mode(0); | ||
| this->m_micoMode = false; | ||
| this->m_sparcV9Mode = false; | ||
| break; | ||
| } | ||
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| ImGui::EndChild(); | ||
| } | ||
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| ImGui::NewLine(); | ||
| if (ImGui::Button("Disassemble")) | ||
| this->m_shouldInvalidate = true; | ||
| ImGui::NewLine(); | ||
| ImGui::Separator(); | ||
| ImGui::NewLine(); | ||
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| if (ImGui::BeginChild("##scrolling")) { | ||
| if (ImGui::BeginTable("##disassembly", 4, ImGuiTableFlags_Borders | ImGuiTableFlags_Resizable | ImGuiTableFlags_RowBg | ImGuiTableFlags_NoBordersInBody)) { | ||
| ImGui::TableSetupColumn("Address"); | ||
| ImGui::TableSetupColumn("Offset"); | ||
| ImGui::TableSetupColumn("Bytes"); | ||
| ImGui::TableSetupColumn("Disassembly"); | ||
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| ImGuiListClipper clipper; | ||
| clipper.Begin(this->m_disassembly.size()); | ||
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| ImGui::TableHeadersRow(); | ||
| while (clipper.Step()) { | ||
| for (u64 i = clipper.DisplayStart; i < clipper.DisplayEnd; i++) { | ||
| ImGui::TableNextRow(); | ||
| ImGui::TableNextColumn(); | ||
| ImGui::Text("0x%llx", this->m_disassembly[i].address); | ||
| ImGui::TableNextColumn(); | ||
| ImGui::Text("0x%llx", this->m_disassembly[i].offset); | ||
| ImGui::TableNextColumn(); | ||
| ImGui::TextUnformatted(this->m_disassembly[i].bytes.c_str()); | ||
| ImGui::TableNextColumn(); | ||
| ImGui::TextUnformatted(this->m_disassembly[i].opcodeString.c_str()); | ||
| } | ||
| } | ||
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| clipper.End(); | ||
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| ImGui::EndTable(); | ||
| } | ||
| } | ||
| ImGui::EndChild(); | ||
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| } | ||
| } | ||
| ImGui::End(); | ||
| } | ||
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| void ViewDisassembler::createMenu() { | ||
| if (ImGui::BeginMenu("View")) { | ||
| ImGui::MenuItem("Disassembler View", "", &this->m_windowOpen); | ||
| ImGui::EndMenu(); | ||
| } | ||
| } | ||
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| } |
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