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1//===-- DisassemblerLLVMC.h -------------------------------------*- C++ -*-===//2//3// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.4// See https://llvm.org/LICENSE.txt for license information.5// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception6//7//===----------------------------------------------------------------------===//8 9#ifndef LLDB_SOURCE_PLUGINS_DISASSEMBLER_LLVMC_DISASSEMBLERLLVMC_H10#define LLDB_SOURCE_PLUGINS_DISASSEMBLER_LLVMC_DISASSEMBLERLLVMC_H11 12#include <memory>13#include <mutex>14#include <optional>15#include <string>16 17#include "lldb/Core/Address.h"18#include "lldb/Core/Disassembler.h"19#include "lldb/Core/PluginManager.h"20 21class InstructionLLVMC;22 23class DisassemblerLLVMC : public lldb_private::Disassembler {24public:25 DisassemblerLLVMC(const lldb_private::ArchSpec &arch, const char *flavor,26 const char *cpu, const char *features);27 28 ~DisassemblerLLVMC() override;29 30 // Static Functions31 static void Initialize();32 33 static void Terminate();34 35 static llvm::StringRef GetPluginNameStatic() { return "llvm-mc"; }36 37 static lldb::DisassemblerSP CreateInstance(const lldb_private::ArchSpec &arch,38 const char *flavor,39 const char *cpu,40 const char *features);41 42 size_t DecodeInstructions(const lldb_private::Address &base_addr,43 const lldb_private::DataExtractor &data,44 lldb::offset_t data_offset, size_t num_instructions,45 bool append, bool data_from_file) override;46 47 // PluginInterface protocol48 llvm::StringRef GetPluginName() override { return GetPluginNameStatic(); }49 50protected:51 friend class InstructionLLVMC;52 53 bool FlavorValidForArchSpec(const lldb_private::ArchSpec &arch,54 const char *flavor) override;55 56 bool IsValid() const;57 58 int OpInfo(uint64_t PC, uint64_t Offset, uint64_t Size, int TagType,59 void *TagBug);60 61 const char *SymbolLookup(uint64_t ReferenceValue, uint64_t *ReferenceType,62 uint64_t ReferencePC, const char **ReferenceName);63 64 static int OpInfoCallback(void *DisInfo, uint64_t PC, uint64_t Offset,65 uint64_t Size, int TagType, void *TagBug);66 67 static const char *SymbolLookupCallback(void *DisInfo,68 uint64_t ReferenceValue,69 uint64_t *ReferenceType,70 uint64_t ReferencePC,71 const char **ReferenceName);72 73 const lldb_private::ExecutionContext *m_exe_ctx;74 InstructionLLVMC *m_inst;75 std::mutex m_mutex;76 bool m_data_from_file;77 // Save the AArch64 ADRP instruction word and address it was at,78 // in case the next instruction is an ADD to the same register;79 // this is a pc-relative address calculation and we need both80 // parts to calculate the symbolication.81 lldb::addr_t m_adrp_address;82 std::optional<uint32_t> m_adrp_insn;83 84 // Since we need to make two actual MC Disassemblers for ARM (ARM & THUMB),85 // and there's a bit of goo to set up and own in the MC disassembler world,86 // this class was added to manage the actual disassemblers.87 class MCDisasmInstance;88 std::unique_ptr<MCDisasmInstance> m_disasm_up;89 std::unique_ptr<MCDisasmInstance> m_alternate_disasm_up;90};91 92#endif // LLDB_SOURCE_PLUGINS_DISASSEMBLER_LLVMC_DISASSEMBLERLLVMC_H93