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feat: Added initial support for custom disassemblers

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This commit is contained in:
WerWolv
2024-12-26 20:04:39 +01:00
parent a76c6c653d
commit bf44a1cce6
12 changed files with 170 additions and 42 deletions
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2
plugins/disassembler/CMakeLists.txt
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@@ -27,6 +27,7 @@ add_imhex_plugin(
source/content/pl_builtin_types.cpp
source/content/disassemblers/capstone_architectures.cpp
source/content/disassemblers/custom_architectures.cpp
INCLUDES
include
${CAPSTONE_INCLUDE_DIR}
@@ -34,4 +35,5 @@ add_imhex_plugin(
ui
fonts
${CAPSTONE_LIBRARY}
libdisassembler
)

4
plugins/disassembler/include/content/helpers/disassembler.hpp
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@@ -30,7 +30,7 @@ namespace hex::plugin::disasm {
RISCV = CS_ARCH_RISCV,
MOS65XX = CS_ARCH_MOS65XX,
BPF = CS_ARCH_BPF,
SH = CS_ARCH_SH,
SUPERH = CS_ARCH_SH,
TRICORE = CS_ARCH_TRICORE,
MAX = TRICORE,
# else
@@ -163,7 +163,7 @@ namespace hex::plugin::disasm {
arch = CS_ARCH_MOS65XX;
else if (equalsIgnoreCase(archName, "bpf"))
arch = CS_ARCH_BPF;
else if (equalsIgnoreCase(archName, "sh"))
else if (equalsIgnoreCase(archName, "sh") || equalsIgnoreCase(archName, "superh"))
arch = CS_ARCH_SH;
else if (equalsIgnoreCase(archName, "tricore"))
arch = CS_ARCH_TRICORE;

114
plugins/disassembler/source/content/disassemblers/capstone_architectures.cpp
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@@ -9,11 +9,15 @@ namespace hex::plugin::disasm {
class CapstoneArchitecture : public ContentRegistry::Disassembler::Architecture {
public:
explicit CapstoneArchitecture(BuiltinArchitecture architecture)
explicit CapstoneArchitecture(BuiltinArchitecture architecture, cs_mode mode = cs_mode(0))
: Architecture(CapstoneDisassembler::ArchitectureNames[u32(architecture)]),
m_architecture(architecture) { }
m_architecture(architecture),
m_mode(mode) { }
bool start() override {
if (m_initialized) return false;
m_instruction = nullptr;
auto mode = m_mode;
if (m_endian == true) {
mode = cs_mode(u32(mode) | CS_MODE_LITTLE_ENDIAN);
@@ -27,39 +31,43 @@ namespace hex::plugin::disasm {
cs_option(m_handle, CS_OPT_SKIPDATA, CS_OPT_ON);
m_instruction = cs_malloc(m_handle);
m_initialized = true;
return true;
}
void end() override {
cs_free(m_instruction, 1);
cs_close(&m_handle);
m_initialized = false;
}
void drawSettings() override {
ImGui::RadioButton("hex.ui.common.little_endian"_lang, &m_endian, true);
ImGui::SameLine();
ImGui::RadioButton("hex.ui.common.big_endian"_lang, &m_endian, false);
ImGui::NewLine();
}
std::optional<ContentRegistry::Disassembler::Instruction> disassemble(u64 imageBaseAddress, u64 instructionLoadAddress, u64 instructionDataAddress, std::span<const u8> code) override {
auto *instruction = cs_malloc(m_handle);
ON_SCOPE_EXIT { cs_free(instruction, 1); };
auto ptr = code.data();
auto size = code.size_bytes();
if (!cs_disasm_iter(m_handle, &ptr, &size, &instructionLoadAddress, instruction)) {
if (!cs_disasm_iter(m_handle, &ptr, &size, &instructionLoadAddress, m_instruction)) {
return std::nullopt;
}
ContentRegistry::Disassembler::Instruction disassembly = { };
disassembly.address = instruction->address;
disassembly.address = m_instruction->address;
disassembly.offset = instructionDataAddress - imageBaseAddress;
disassembly.size = instruction->size;
disassembly.mnemonic = instruction->mnemonic;
disassembly.operators = instruction->op_str;
disassembly.size = m_instruction->size;
disassembly.mnemonic = m_instruction->mnemonic;
disassembly.operators = m_instruction->op_str;
for (u16 j = 0; j < instruction->size; j++)
disassembly.bytes += hex::format("{0:02X} ", instruction->bytes[j]);
for (u16 j = 0; j < m_instruction->size; j++)
disassembly.bytes += hex::format("{0:02X} ", m_instruction->bytes[j]);
disassembly.bytes.pop_back();
return disassembly;
@@ -68,17 +76,21 @@ namespace hex::plugin::disasm {
private:
BuiltinArchitecture m_architecture;
csh m_handle = 0;
cs_insn *m_instruction = nullptr;
protected:
cs_mode m_mode = cs_mode(0);
int m_endian = false;
bool m_initialized = false;
};
class ArchitectureARM : public CapstoneArchitecture {
public:
ArchitectureARM() : CapstoneArchitecture(BuiltinArchitecture::ARM) {}
ArchitectureARM(cs_mode mode = cs_mode(0)) : CapstoneArchitecture(BuiltinArchitecture::ARM, mode) {}
void drawSettings() override {
CapstoneArchitecture::drawSettings();
ImGui::RadioButton("hex.disassembler.view.disassembler.arm.arm"_lang, &m_armMode, CS_MODE_ARM);
ImGui::SameLine();
ImGui::RadioButton("hex.disassembler.view.disassembler.arm.thumb"_lang, &m_armMode, CS_MODE_THUMB);
@@ -98,16 +110,18 @@ namespace hex::plugin::disasm {
class ArchitectureARM64 : public CapstoneArchitecture {
public:
ArchitectureARM64() : CapstoneArchitecture(BuiltinArchitecture::ARM64) {}
ArchitectureARM64(cs_mode mode = cs_mode(0)) : CapstoneArchitecture(BuiltinArchitecture::ARM64, mode) {}
void drawSettings() override { }
};
class ArchitectureMIPS : public CapstoneArchitecture {
public:
ArchitectureMIPS() : CapstoneArchitecture(BuiltinArchitecture::MIPS) {}
ArchitectureMIPS(cs_mode mode = cs_mode(0)) : CapstoneArchitecture(BuiltinArchitecture::MIPS, mode) {}
void drawSettings() override {
CapstoneArchitecture::drawSettings();
ImGui::RadioButton("hex.disassembler.view.disassembler.mips.mips32"_lang, &m_mipsMode, CS_MODE_MIPS32);
ImGui::SameLine();
ImGui::RadioButton("hex.disassembler.view.disassembler.mips.mips64"_lang, &m_mipsMode, CS_MODE_MIPS64);
@@ -130,9 +144,11 @@ namespace hex::plugin::disasm {
class ArchitectureX86 : public CapstoneArchitecture {
public:
ArchitectureX86() : CapstoneArchitecture(BuiltinArchitecture::X86) {}
ArchitectureX86(cs_mode mode = cs_mode(0)) : CapstoneArchitecture(BuiltinArchitecture::X86, mode) {}
void drawSettings() override {
CapstoneArchitecture::drawSettings();
ImGui::RadioButton("hex.disassembler.view.disassembler.16bit"_lang, &m_x86Mode, CS_MODE_16);
ImGui::SameLine();
ImGui::RadioButton("hex.disassembler.view.disassembler.32bit"_lang, &m_x86Mode, CS_MODE_32);
@@ -148,9 +164,11 @@ namespace hex::plugin::disasm {
class ArchitecturePowerPC : public CapstoneArchitecture {
public:
ArchitecturePowerPC() : CapstoneArchitecture(BuiltinArchitecture::PPC) {}
ArchitecturePowerPC(cs_mode mode = cs_mode(0)) : CapstoneArchitecture(BuiltinArchitecture::PPC, mode) {}
void drawSettings() override {
CapstoneArchitecture::drawSettings();
ImGui::RadioButton("hex.disassembler.view.disassembler.32bit"_lang, &m_ppcMode, CS_MODE_32);
ImGui::SameLine();
ImGui::RadioButton("hex.disassembler.view.disassembler.64bit"_lang, &m_ppcMode, CS_MODE_64);
@@ -176,9 +194,11 @@ namespace hex::plugin::disasm {
class ArchitectureSPARC : public CapstoneArchitecture {
public:
ArchitectureSPARC() : CapstoneArchitecture(BuiltinArchitecture::SPARC) {}
ArchitectureSPARC(cs_mode mode = cs_mode(0)) : CapstoneArchitecture(BuiltinArchitecture::SPARC, mode) {}
void drawSettings() override {
CapstoneArchitecture::drawSettings();
ImGui::Checkbox("hex.disassembler.view.disassembler.sparc.v9"_lang, &m_v9Mode);
m_mode = cs_mode(m_v9Mode ? CS_MODE_V9 : cs_mode(0));
@@ -190,23 +210,29 @@ namespace hex::plugin::disasm {
class ArchitectureSystemZ : public CapstoneArchitecture {
public:
ArchitectureSystemZ() : CapstoneArchitecture(BuiltinArchitecture::SYSZ) {}
ArchitectureSystemZ(cs_mode mode = cs_mode(0)) : CapstoneArchitecture(BuiltinArchitecture::SYSZ, mode) {}
void drawSettings() override { }
void drawSettings() override {
CapstoneArchitecture::drawSettings();
}
};
class ArchitectureXCore : public CapstoneArchitecture {
public:
ArchitectureXCore() : CapstoneArchitecture(BuiltinArchitecture::XCORE) {}
ArchitectureXCore(cs_mode mode = cs_mode(0)) : CapstoneArchitecture(BuiltinArchitecture::XCORE, mode) {}
void drawSettings() override { }
void drawSettings() override {
CapstoneArchitecture::drawSettings();
}
};
class ArchitectureM68K : public CapstoneArchitecture {
public:
ArchitectureM68K() : CapstoneArchitecture(BuiltinArchitecture::M68K) {}
ArchitectureM68K(cs_mode mode = cs_mode(0)) : CapstoneArchitecture(BuiltinArchitecture::M68K, mode) {}
void drawSettings() override {
CapstoneArchitecture::drawSettings();
std::pair<const char *, cs_mode> modes[] = {
{"hex.disassembler.view.disassembler.m68k.000"_lang, CS_MODE_M68K_000},
{ "hex.disassembler.view.disassembler.m68k.010"_lang, CS_MODE_M68K_010},
@@ -233,15 +259,19 @@ namespace hex::plugin::disasm {
class ArchitectureTMS320C64X : public CapstoneArchitecture {
public:
ArchitectureTMS320C64X() : CapstoneArchitecture(BuiltinArchitecture::TMS320C64X) {}
ArchitectureTMS320C64X(cs_mode mode = cs_mode(0)) : CapstoneArchitecture(BuiltinArchitecture::TMS320C64X, mode) {}
void drawSettings() override { }
void drawSettings() override {
CapstoneArchitecture::drawSettings();
}
};
class ArchitectureM680X : public CapstoneArchitecture {
public:
ArchitectureM680X() : CapstoneArchitecture(BuiltinArchitecture::M680X) {}
ArchitectureM680X(cs_mode mode = cs_mode(0)) : CapstoneArchitecture(BuiltinArchitecture::M680X, mode) {}
void drawSettings() override {
CapstoneArchitecture::drawSettings();
std::pair<const char *, cs_mode> modes[] = {
{"hex.disassembler.view.disassembler.m680x.6301"_lang, CS_MODE_M680X_6301 },
{ "hex.disassembler.view.disassembler.m680x.6309"_lang, CS_MODE_M680X_6309 },
@@ -272,25 +302,31 @@ namespace hex::plugin::disasm {
class ArchitectureEVM : public CapstoneArchitecture {
public:
ArchitectureEVM() : CapstoneArchitecture(BuiltinArchitecture::EVM) {}
ArchitectureEVM(cs_mode mode = cs_mode(0)) : CapstoneArchitecture(BuiltinArchitecture::EVM, mode) {}
void drawSettings() override { }
void drawSettings() override {
CapstoneArchitecture::drawSettings();
}
};
#if CS_API_MAJOR >= 5
class ArchitectureWASM : public CapstoneArchitecture {
public:
ArchitectureWASM() : CapstoneArchitecture(BuiltinArchitecture::WASM) {}
ArchitectureWASM(cs_mode mode = cs_mode(0)) : CapstoneArchitecture(BuiltinArchitecture::WASM, mode) {}
void drawSettings() override { }
void drawSettings() override {
CapstoneArchitecture::drawSettings();
}
};
class ArchitectureRISCV : public CapstoneArchitecture {
public:
ArchitectureRISCV() : CapstoneArchitecture(BuiltinArchitecture::RISCV) {}
ArchitectureRISCV(cs_mode mode = cs_mode(0)) : CapstoneArchitecture(BuiltinArchitecture::RISCV, mode) {}
void drawSettings() override {
CapstoneArchitecture::drawSettings();
ImGui::RadioButton("hex.disassembler.view.disassembler.32bit"_lang, &m_riscvMode, CS_MODE_RISCV32);
ImGui::SameLine();
ImGui::RadioButton("hex.disassembler.view.disassembler.64bit"_lang, &m_riscvMode, CS_MODE_RISCV64);
@@ -307,9 +343,11 @@ namespace hex::plugin::disasm {
class ArchitectureMOS65XX : public CapstoneArchitecture {
public:
ArchitectureMOS65XX() : CapstoneArchitecture(BuiltinArchitecture::MOS65XX) {}
ArchitectureMOS65XX(cs_mode mode = cs_mode(0)) : CapstoneArchitecture(BuiltinArchitecture::MOS65XX, mode) {}
void drawSettings() override {
CapstoneArchitecture::drawSettings();
std::pair<const char *, cs_mode> modes[] = {
{"hex.disassembler.view.disassembler.mos65xx.6502"_lang, CS_MODE_MOS65XX_6502 },
{ "hex.disassembler.view.disassembler.mos65xx.65c02"_lang, CS_MODE_MOS65XX_65C02 },
@@ -337,9 +375,11 @@ namespace hex::plugin::disasm {
class ArchitectureBPF : public CapstoneArchitecture {
public:
ArchitectureBPF() : CapstoneArchitecture(BuiltinArchitecture::BPF) {}
ArchitectureBPF(cs_mode mode = cs_mode(0)) : CapstoneArchitecture(BuiltinArchitecture::BPF, mode) {}
void drawSettings() override {
CapstoneArchitecture::drawSettings();
ImGui::RadioButton("hex.disassembler.view.disassembler.bpf.classic"_lang, &m_bpfMode, CS_MODE_BPF_CLASSIC);
ImGui::SameLine();
ImGui::RadioButton("hex.disassembler.view.disassembler.bpf.extended"_lang, &m_bpfMode, CS_MODE_BPF_EXTENDED);
@@ -353,9 +393,11 @@ namespace hex::plugin::disasm {
class ArchitectureSuperH : public CapstoneArchitecture {
public:
ArchitectureSuperH() : CapstoneArchitecture(BuiltinArchitecture::SH) {}
ArchitectureSuperH(cs_mode mode = cs_mode(0)) : CapstoneArchitecture(BuiltinArchitecture::SUPERH, mode) {}
void drawSettings() override {
CapstoneArchitecture::drawSettings();
std::pair<const char*, cs_mode> modes[] = {
{ "hex.disassembler.view.disassembler.sh.sh2"_lang, CS_MODE_SH2 },
{ "hex.disassembler.view.disassembler.sh.sh2a"_lang, CS_MODE_SH2A },
@@ -387,9 +429,11 @@ namespace hex::plugin::disasm {
class ArchitectureTricore : public CapstoneArchitecture {
public:
ArchitectureTricore() : CapstoneArchitecture(BuiltinArchitecture::TRICORE) {}
ArchitectureTricore(cs_mode mode = cs_mode(0)) : CapstoneArchitecture(BuiltinArchitecture::TRICORE, mode) {}
void drawSettings() override {
CapstoneArchitecture::drawSettings();
std::pair<const char*, cs_mode> modes[] = {
{ "hex.disassembler.view.disassembler.tricore.110"_lang, CS_MODE_TRICORE_110 },
{ "hex.disassembler.view.disassembler.tricore.120"_lang, CS_MODE_TRICORE_120 },

72
plugins/disassembler/source/content/disassemblers/custom_architectures.cpp Normal file
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@@ -0,0 +1,72 @@
#include <hex/api/content_registry.hpp>
#include <hex/helpers/default_paths.hpp>
#include <disasm/disasm.hpp>
#include <hex/helpers/fmt.hpp>
#include <hex/helpers/logger.hpp>
#include <wolv/utils/string.hpp>
namespace hex::plugin::disasm {
class CustomArchitecture : public ContentRegistry::Disassembler::Architecture {
public:
CustomArchitecture(::disasm::spec::Spec spec) : Architecture(spec.getName()), m_spec(std::move(spec)) {}
bool start() override {
return true;
}
void end() override {
}
void drawSettings() override {
}
std::optional<ContentRegistry::Disassembler::Instruction> disassemble(u64 imageBaseAddress, u64 instructionLoadAddress, u64 instructionDataAddress, std::span<const u8> code) override {
std::ignore = imageBaseAddress;
std::ignore = instructionDataAddress;
std::ignore = instructionLoadAddress;
std::ignore = code;
auto instructions = m_spec.disassemble(code, 1);
if (instructions.empty()) {
return std::nullopt;
}
const auto &instruction = instructions.front();
ContentRegistry::Disassembler::Instruction disassembly = { };
disassembly.address = instructionDataAddress;
disassembly.offset = instructionDataAddress - imageBaseAddress;
disassembly.size = instruction.bytes.size();
disassembly.mnemonic = instruction.mnemonic;
disassembly.operators = instruction.operands;
for (u8 byte : instruction.bytes)
disassembly.bytes += hex::format("{0:02X} ", byte);
disassembly.bytes.pop_back();
return disassembly;
}
private:
::disasm::spec::Spec m_spec;
};
void registerCustomArchitectures() {
for (const auto &folder : hex::paths::Disassemblers.all()) {
for (const auto &entry : std::fs::directory_iterator(folder)) {
try {
auto spec = ::disasm::spec::Loader::load(entry.path(), { entry.path().parent_path() });
ContentRegistry::Disassembler::add<CustomArchitecture>(std::move(spec));
} catch (const std::exception &e) {
log::error("Failed to load disassembler config '{}': {}", wolv::util::toUTF8String(entry.path()), e.what());
}
}
}
}
}

2
plugins/disassembler/source/plugin_disassembler.cpp
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@@ -18,6 +18,7 @@ namespace hex::plugin::disasm {
void registerPatternLanguageTypes();
void registerCapstoneArchitectures();
void registerCustomArchitectures();
}
@@ -46,4 +47,5 @@ IMHEX_PLUGIN_SETUP("Disassembler", "WerWolv", "Disassembler support") {
registerPatternLanguageTypes();
registerCapstoneArchitectures();
registerCustomArchitectures();
}