contrib/llvm-project/lldb/source/Plugins/Disassembler/llvm/DisassemblerLLVMC.h

   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-exception
   6 //
   7 //===----------------------------------------------------------------------===//
   8
   9 #ifndef liblldb_DisassemblerLLVMC_h_
  10 #define liblldb_DisassemblerLLVMC_h_
  11
  12 #include <memory>
  13 #include <mutex>
  14 #include <string>
  15
  16 #include "lldb/Core/Address.h"
  17 #include "lldb/Core/Disassembler.h"
  18 #include "lldb/Core/PluginManager.h"
  19
  20 class InstructionLLVMC;
  21
  22 class DisassemblerLLVMC : public lldb_private::Disassembler {
  23 public:
  24   DisassemblerLLVMC(const lldb_private::ArchSpec &arch,
  25                     const char *flavor /* = NULL */);
  26
  27   ~DisassemblerLLVMC() override;
  28
  29   // Static Functions
  30   static void Initialize();
  31
  32   static void Terminate();
  33
  34   static lldb_private::ConstString GetPluginNameStatic();
  35
  36   static lldb_private::Disassembler *
  37   CreateInstance(const lldb_private::ArchSpec &arch, const char *flavor);
  38
  39   size_t DecodeInstructions(const lldb_private::Address &base_addr,
  40                             const lldb_private::DataExtractor &data,
  41                             lldb::offset_t data_offset, size_t num_instructions,
  42                             bool append, bool data_from_file) override;
  43
  44   // PluginInterface protocol
  45   lldb_private::ConstString GetPluginName() override;
  46
  47   uint32_t GetPluginVersion() override;
  48
  49 protected:
  50   friend class InstructionLLVMC;
  51
  52   bool FlavorValidForArchSpec(const lldb_private::ArchSpec &arch,
  53                               const char *flavor) override;
  54
  55   bool IsValid() const;
  56
  57   int OpInfo(uint64_t PC, uint64_t Offset, uint64_t Size, int TagType,
  58              void *TagBug);
  59
  60   const char *SymbolLookup(uint64_t ReferenceValue, uint64_t *ReferenceType,
  61                            uint64_t ReferencePC, const char **ReferenceName);
  62
  63   static int OpInfoCallback(void *DisInfo, uint64_t PC, uint64_t Offset,
  64                             uint64_t Size, int TagType, void *TagBug);
  65
  66   static const char *SymbolLookupCallback(void *DisInfo,
  67                                           uint64_t ReferenceValue,
  68                                           uint64_t *ReferenceType,
  69                                           uint64_t ReferencePC,
  70                                           const char **ReferenceName);
  71
  72   const lldb_private::ExecutionContext *m_exe_ctx;
  73   InstructionLLVMC *m_inst;
  74   std::mutex m_mutex;
  75   bool m_data_from_file;
  76
  77   // Since we need to make two actual MC Disassemblers for ARM (ARM & THUMB),
  78   // and there's a bit of goo to set up and own in the MC disassembler world,
  79   // this class was added to manage the actual disassemblers.
  80   class MCDisasmInstance;
  81   std::unique_ptr<MCDisasmInstance> m_disasm_up;
  82   std::unique_ptr<MCDisasmInstance> m_alternate_disasm_up;
  83 };
  84
  85 #endif // liblldb_DisassemblerLLVM_h_