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         virtual ~LLVMDisassembler();
  25
  26         void start();
  27         void getSymbols() {}
  28         uint64_t entryAddress() {}
  29
  30         void forEachFunction(std::function<void (uint64_t, Function*)> callback);
  31         void printEachInstruction(uint64_t start, uint64_t end,
  32                                   std::function<void (uint8_t*, size_t, const std::string&)> fun);
  33
  34         BasicBlock * getBasicBlock(uint64_t address) {
  35                 return blocks[address];
  36         }
  37
  38         Function * disassembleFunctionAt(uint64_t address, const std::string& name = "");
  39
  40 protected:
  41         bool isFunctionCall(uint64_t address) {return false;}
  42         bool isJump(uint64_t address) {return false;}
  43
  44 private:
  45         // http://llvm.org/docs/doxygen/html/MCObjectDisassembler_8cpp_source.html +197
  46         void disassembleFunction(LLVMFunction* function);
  47         void splitBlocks(LLVMFunction* fun);
  48         void disassemble();
  49
  50         void readSymbols();
  51         void readSections();
  52
  53         log4cxx::LoggerPtr logger;
  54         std::map<uint64_t, LLVMBasicBlock*> blocks;
  55         std::map<uint64_t, LLVMFunction*> functions;
  56
  57         llvm::Triple triple;
  58         std::shared_ptr<llvm::object::Binary> binary;
  59
  60         const llvm::Target * target;
  61         llvm::object::ObjectFile * o;
  62
  63         std::unique_ptr<const llvm::MCRegisterInfo> MRI;
  64         std::unique_ptr<const llvm::MCAsmInfo> AsmInfo;
  65         std::unique_ptr<llvm::MCModule> Mod;
  66         std::unique_ptr<llvm::MCInstPrinter> IP;
  67         std::unique_ptr<llvm::MCDisassembler> DisAsm;
  68         std::unique_ptr<const llvm::MCObjectFileInfo> MOFI;
  69         std::unique_ptr<llvm::MCContext> Ctx;
  70         std::unique_ptr<const llvm::MCInstrAnalysis> MIA;
  71         std::unique_ptr<const llvm::MCSubtargetInfo> STI;
  72         std::unique_ptr<const llvm::MCInstrInfo> MII;
  73         std::unique_ptr<llvm::MCRelocationInfo> RelInfo;
  74         std::unique_ptr<llvm::MCSymbolizer> Symzer;
  75
  76         std::map<std::string, llvm::object::SectionRef> sections;
  77         std::map<std::string, llvm::object::SymbolRef> symbols;
  78         InformationManager * manager;
  79 };
  80
  81 #endif