59 lines
1.8 KiB
C++
59 lines
1.8 KiB
C++
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/* This file is part of the dynarmic project.
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* Copyright (c) 2018 MerryMage
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* This software may be used and distributed according to the terms of the GNU
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* General Public License version 2 or any later version.
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*/
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#include <string>
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#include <fmt/format.h>
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#ifdef DYNARMIC_USE_LLVM
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#include <llvm-c/Disassembler.h>
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#include <llvm-c/Target.h>
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#endif
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#include "backend_x64/disassemble_x64.h"
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#include "common/assert.h"
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#include "common/common_types.h"
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namespace Dynarmic::BackendX64 {
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std::string DisassembleX64(const void* begin, const void* end) {
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std::string result;
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#ifdef DYNARMIC_USE_LLVM
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LLVMInitializeX86TargetInfo();
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LLVMInitializeX86TargetMC();
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LLVMInitializeX86Disassembler();
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LLVMDisasmContextRef llvm_ctx = LLVMCreateDisasm("x86_64", nullptr, 0, nullptr, nullptr);
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LLVMSetDisasmOptions(llvm_ctx, LLVMDisassembler_Option_AsmPrinterVariant);
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const u8* pos = reinterpret_cast<const u8*>(begin);
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size_t remaining = reinterpret_cast<size_t>(end) - reinterpret_cast<size_t>(pos);
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while (pos < end) {
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char buffer[80];
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size_t inst_size = LLVMDisasmInstruction(llvm_ctx, const_cast<u8*>(pos), remaining, reinterpret_cast<u64>(pos), buffer, sizeof(buffer));
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ASSERT(inst_size);
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for (const u8* i = pos; i < pos + inst_size; i++)
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result += fmt::format("{:02x} ", *i);
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for (size_t i = inst_size; i < 10; i++)
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result += " ";
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result += buffer;
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result += '\n';
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pos += inst_size;
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remaining -= inst_size;
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}
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LLVMDisasmDispose(llvm_ctx);
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#else
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result += fmt::format("(recompile with DYNARMIC_USE_LLVM=ON to disassemble the generated x86_64 code)\n");
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result += fmt::format("start: {:016x}, end: {:016x}\n", begin, end);
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#endif
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return result;
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}
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} // namespace Dynarmic::BackendX64
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