src/disassembler/llvm/LLVMDisassembler.hxx

   1 #ifndef INCLUDE__LLVMDisassembler_hxx
   2 #define INCLUDE__LLVMDisassembler_hxx
   3
   4 #include <memory>
   5 #include <map>
   6 #include <log4cxx/logger.h>
   7
   8 #include "include_llvm.hxx"
   9
  10 #include "disassembler/Disassembler.hxx"
  11 #include "disassembler/BasicBlock.hxx"
  12 #include "disassembler/Function.hxx"
  13 #include "disassembler/llvm/LLVMBasicBlock.hxx"
  14 #include "disassembler/llvm/LLVMFunction.hxx"
  15
  16
  17 Disassembler * createLLVMDisassembler(const std::string& filename, InformationManager* manager);
  18
  19 template <typename ELFT>
  20 class LLVMDisassembler
  21         : public Disassembler {
  22 public:
  23         LLVMDisassembler(const std::string& filename, InformationManager* manager,
  24                          llvm::object::ELFObjectFile<ELFT>* file = NULL);
  25         virtual ~LLVMDisassembler();
  26
  27         void start();
  28         void getSymbols() {}
  29         uint64_t entryAddress() {return _entryAddress;}
  30
  31         void forEachFunction(std::function<void (uint64_t, Function*)> callback);
  32         void printEachInstruction(uint64_t start, uint64_t end,
  33                                   std::function<void (uint8_t*, size_t, const std::string&,
  34                                                       const std::string&)> fun);
  35
  36         BasicBlock * getBasicBlock(uint64_t address) {
  37                 return blocks[address];
  38         }
  39
  40         Function * disassembleFunctionAt(uint64_t address, const std::string& name = "");
  41
  42 protected:
  43         bool isFunctionCall(uint64_t address) {return false;}
  44         bool isJump(uint64_t address) {return false;}
  45
  46 private:
  47         typedef llvm::object::ELFFile<ELFT> ELFO;
  48
  49         // http://llvm.org/docs/doxygen/html/MCObjectDisassembler_8cpp_source.html +197
  50         void disassembleFunction(LLVMFunction* function);
  51         void splitBlocks(LLVMFunction* fun);
  52         void disassemble();
  53
  54         void readSymbols();
  55         void readSections();
  56         void readDynamicSymbols();
  57
  58         log4cxx::LoggerPtr logger;
  59         std::map<uint64_t, LLVMBasicBlock*> blocks;
  60         std::map<uint64_t, LLVMFunction*> functions;
  61
  62         llvm::Triple triple;
  63         std::shared_ptr<llvm::object::Binary> binary;
  64
  65         const llvm::Target * target;
  66         llvm::object::ELFObjectFile<ELFT> * o;
  67
  68         std::unique_ptr<const llvm::MCRegisterInfo> MRI;
  69         std::unique_ptr<const llvm::MCAsmInfo> AsmInfo;
  70         std::unique_ptr<llvm::MCModule> Mod;
  71         std::unique_ptr<llvm::MCInstPrinter> IP;
  72         std::unique_ptr<llvm::MCDisassembler> DisAsm;
  73         std::unique_ptr<const llvm::MCObjectFileInfo> MOFI;
  74         std::unique_ptr<llvm::MCContext> Ctx;
  75         std::unique_ptr<const llvm::MCInstrAnalysis> MIA;
  76         std::unique_ptr<const llvm::MCSubtargetInfo> STI;
  77         std::unique_ptr<const llvm::MCInstrInfo> MII;
  78         std::unique_ptr<llvm::MCRelocationInfo> RelInfo;
  79         std::unique_ptr<llvm::MCSymbolizer> Symzer;
  80
  81         std::map<std::string, llvm::object::SectionRef> sections;
  82         std::map<std::string, llvm::object::SymbolRef> symbols;
  83         InformationManager * manager;
  84         uint64_t _entryAddress;
  85 };
  86
  87 #endif