1 //===-- DisassemblerLLVMC.h -------------------------------------*- C++ -*-===//
3 // The LLVM Compiler Infrastructure
5 // This file is distributed under the University of Illinois Open Source
6 // License. See LICENSE.TXT for details.
8 //===----------------------------------------------------------------------===//
10 #ifndef liblldb_DisassemblerLLVMC_h_
11 #define liblldb_DisassemblerLLVMC_h_
19 // Other libraries and framework includes
20 #include "llvm-c/Disassembler.h"
23 #include "lldb/Core/Address.h"
24 #include "lldb/Core/Disassembler.h"
25 #include "lldb/Core/PluginManager.h"
27 // Opaque references to C++ Objects in LLVM's MC.
36 class MCSubtargetInfo;
39 class InstructionLLVMC;
41 class DisassemblerLLVMC : public lldb_private::Disassembler {
42 // Since we need to make two actual MC Disassemblers for ARM (ARM & THUMB),
43 // and there's a bit of goo to set up and own
44 // in the MC disassembler world, I added this class to manage the actual
46 class LLVMCDisassembler {
48 LLVMCDisassembler(const char *triple, const char *cpu,
49 const char *features_str, unsigned flavor,
50 DisassemblerLLVMC &owner);
54 uint64_t GetMCInst(const uint8_t *opcode_data, size_t opcode_data_len,
55 lldb::addr_t pc, llvm::MCInst &mc_inst);
56 void PrintMCInst(llvm::MCInst &mc_inst, std::string &inst_string,
57 std::string &comments_string);
58 void SetStyle(bool use_hex_immed, HexImmediateStyle hex_style);
59 bool CanBranch(llvm::MCInst &mc_inst);
60 bool HasDelaySlot(llvm::MCInst &mc_inst);
61 bool IsCall(llvm::MCInst &mc_inst);
62 bool IsValid() { return m_is_valid; }
66 std::unique_ptr<llvm::MCContext> m_context_ap;
67 std::unique_ptr<llvm::MCAsmInfo> m_asm_info_ap;
68 std::unique_ptr<llvm::MCSubtargetInfo> m_subtarget_info_ap;
69 std::unique_ptr<llvm::MCInstrInfo> m_instr_info_ap;
70 std::unique_ptr<llvm::MCRegisterInfo> m_reg_info_ap;
71 std::unique_ptr<llvm::MCInstPrinter> m_instr_printer_ap;
72 std::unique_ptr<llvm::MCDisassembler> m_disasm_ap;
76 DisassemblerLLVMC(const lldb_private::ArchSpec &arch,
77 const char *flavor /* = NULL */);
79 ~DisassemblerLLVMC() override;
81 //------------------------------------------------------------------
83 //------------------------------------------------------------------
84 static void Initialize();
86 static void Terminate();
88 static lldb_private::ConstString GetPluginNameStatic();
90 static lldb_private::Disassembler *
91 CreateInstance(const lldb_private::ArchSpec &arch, const char *flavor);
93 size_t DecodeInstructions(const lldb_private::Address &base_addr,
94 const lldb_private::DataExtractor &data,
95 lldb::offset_t data_offset, size_t num_instructions,
96 bool append, bool data_from_file) override;
98 //------------------------------------------------------------------
99 // PluginInterface protocol
100 //------------------------------------------------------------------
101 lldb_private::ConstString GetPluginName() override;
103 uint32_t GetPluginVersion() override;
106 friend class InstructionLLVMC;
108 bool FlavorValidForArchSpec(const lldb_private::ArchSpec &arch,
109 const char *flavor) override;
112 return (m_disasm_ap.get() != NULL && m_disasm_ap->IsValid());
115 int OpInfo(uint64_t PC, uint64_t Offset, uint64_t Size, int TagType,
118 const char *SymbolLookup(uint64_t ReferenceValue, uint64_t *ReferenceType,
119 uint64_t ReferencePC, const char **ReferenceName);
121 static int OpInfoCallback(void *DisInfo, uint64_t PC, uint64_t Offset,
122 uint64_t Size, int TagType, void *TagBug);
124 static const char *SymbolLookupCallback(void *DisInfo,
125 uint64_t ReferenceValue,
126 uint64_t *ReferenceType,
127 uint64_t ReferencePC,
128 const char **ReferenceName);
130 void Lock(InstructionLLVMC *inst,
131 const lldb_private::ExecutionContext *exe_ctx) {
143 const lldb_private::ExecutionContext *m_exe_ctx;
144 InstructionLLVMC *m_inst;
146 bool m_data_from_file;
148 std::unique_ptr<LLVMCDisassembler> m_disasm_ap;
149 std::unique_ptr<LLVMCDisassembler> m_alternate_disasm_ap;
152 #endif // liblldb_DisassemblerLLVM_h_