lib/ExecutionEngine/RuntimeDyld/RuntimeDyldELF.h

   1 //===-- RuntimeDyldELF.h - Run-time dynamic linker for MC-JIT ---*- C++ -*-===//
   2 //
   3 //                     The LLVM Compiler Infrastructure
   4 //
   5 // This file is distributed under the University of Illinois Open Source
   6 // License. See LICENSE.TXT for details.
   7 //
   8 //===----------------------------------------------------------------------===//
   9 //
  10 // ELF support for MC-JIT runtime dynamic linker.
  11 //
  12 //===----------------------------------------------------------------------===//
  13
  14 #ifndef LLVM_RUNTIME_DYLD_ELF_H
  15 #define LLVM_RUNTIME_DYLD_ELF_H
  16
  17 #include "RuntimeDyldImpl.h"
  18
  19 using namespace llvm;
  20
  21 namespace llvm {
  22
  23 namespace {
  24   // Helper for extensive error checking in debug builds.
  25   error_code Check(error_code Err) {
  26     if (Err) {
  27       report_fatal_error(Err.message());
  28     }
  29     return Err;
  30   }
  31 } // end anonymous namespace
  32
  33 class RuntimeDyldELF : public RuntimeDyldImpl {
  34   void resolveRelocation(const SectionEntry &Section,
  35                          uint64_t Offset,
  36                          uint64_t Value,
  37                          uint32_t Type,
  38                          int64_t Addend);
  39
  40   void resolveX86_64Relocation(const SectionEntry &Section,
  41                                uint64_t Offset,
  42                                uint64_t Value,
  43                                uint32_t Type,
  44                                int64_t Addend);
  45
  46   void resolveX86Relocation(const SectionEntry &Section,
  47                             uint64_t Offset,
  48                             uint32_t Value,
  49                             uint32_t Type,
  50                             int32_t Addend);
  51
  52   void resolveAArch64Relocation(const SectionEntry &Section,
  53                                 uint64_t Offset,
  54                                 uint64_t Value,
  55                                 uint32_t Type,
  56                                 int64_t Addend);
  57
  58   void resolveARMRelocation(const SectionEntry &Section,
  59                             uint64_t Offset,
  60                             uint32_t Value,
  61                             uint32_t Type,
  62                             int32_t Addend);
  63
  64   void resolveMIPSRelocation(const SectionEntry &Section,
  65                              uint64_t Offset,
  66                              uint32_t Value,
  67                              uint32_t Type,
  68                              int32_t Addend);
  69
  70   void resolvePPC64Relocation(const SectionEntry &Section,
  71                               uint64_t Offset,
  72                               uint64_t Value,
  73                               uint32_t Type,
  74                               int64_t Addend);
  75
  76   void resolveSystemZRelocation(const SectionEntry &Section,
  77                                 uint64_t Offset,
  78                                 uint64_t Value,
  79                                 uint32_t Type,
  80                                 int64_t Addend);
  81
  82   uint64_t findPPC64TOC() const;
  83   void findOPDEntrySection(ObjectImage &Obj,
  84                            ObjSectionToIDMap &LocalSections,
  85                            RelocationValueRef &Rel);
  86
  87 public:
  88   RuntimeDyldELF(RTDyldMemoryManager *mm) : RuntimeDyldImpl(mm) {}
  89
  90   virtual void resolveRelocation(const RelocationEntry &RE, uint64_t Value);
  91   virtual void processRelocationRef(unsigned SectionID,
  92                                     RelocationRef RelI,
  93                                     ObjectImage &Obj,
  94                                     ObjSectionToIDMap &ObjSectionToID,
  95                                     const SymbolTableMap &Symbols,
  96                                     StubMap &Stubs);
  97   virtual bool isCompatibleFormat(const ObjectBuffer *Buffer) const;
  98   virtual ObjectImage *createObjectImage(ObjectBuffer *InputBuffer);
  99   virtual StringRef getEHFrameSection();
 100   virtual ~RuntimeDyldELF();
 101 };
 102
 103 } // end namespace llvm
 104
 105 #endif