Split the lib/ExecutionEngine/RuntimeDyld/RuntimeDyldImpl.h header to smaller logical headers.

ELF and MachO implementations of RuntimeDyldImpl go into their own header files now.

Reviewed on llvm-commits



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@148652 91177308-0d34-0410-b5e6-96231b3b80d8

6 files changed, 373 insertions, 135 deletions

diff --git a/lib/ExecutionEngine/RuntimeDyld/RuntimeDyld.cpp b/lib/ExecutionEngine/RuntimeDyld/RuntimeDyld.cpp
index 51f6ef0a87..2896c2d556 100644
--- a/lib/ExecutionEngine/RuntimeDyld/RuntimeDyld.cpp
+++ b/lib/ExecutionEngine/RuntimeDyld/RuntimeDyld.cpp
@@ -13,7 +13,10 @@
 
 #define DEBUG_TYPE "dyld"
 #include "RuntimeDyldImpl.h"
+#include "RuntimeDyldELF.h"
+#include "RuntimeDyldMachO.h"
 #include "llvm/Support/Path.h"
+
 using namespace llvm;
 using namespace llvm::object;
 
diff --git a/lib/ExecutionEngine/RuntimeDyld/RuntimeDyldELF.cpp b/lib/ExecutionEngine/RuntimeDyld/RuntimeDyldELF.cpp
index fa7fa0f8f1..1eb7bf2dc8 100644
--- a/lib/ExecutionEngine/RuntimeDyld/RuntimeDyldELF.cpp
+++ b/lib/ExecutionEngine/RuntimeDyld/RuntimeDyldELF.cpp
@@ -16,7 +16,7 @@
 #include "llvm/ADT/StringRef.h"
 #include "llvm/ADT/STLExtras.h"
 #include "llvm/ADT/IntervalMap.h"
-#include "RuntimeDyldImpl.h"
+#include "RuntimeDyldELF.h"
 #include "llvm/Object/ObjectFile.h"
 #include "llvm/Support/ELF.h"
 #include "llvm/ADT/Triple.h"
diff --git a/lib/ExecutionEngine/RuntimeDyld/RuntimeDyldELF.h b/lib/ExecutionEngine/RuntimeDyld/RuntimeDyldELF.h
new file mode 100644
index 0000000000..e0f7d54f43
--- /dev/null
+++ b/lib/ExecutionEngine/RuntimeDyld/RuntimeDyldELF.h
@@ -0,0 +1,178 @@
+//===-- RuntimeDyldELF.h - Run-time dynamic linker for MC-JIT ---*- C++ -*-===//
+//
+//                     The LLVM Compiler Infrastructure
+//
+// This file is distributed under the University of Illinois Open Source
+// License. See LICENSE.TXT for details.
+//
+//===----------------------------------------------------------------------===//
+//
+// ELF support for MC-JIT runtime dynamic linker.
+//
+//===----------------------------------------------------------------------===//
+
+#ifndef LLVM_RUNTIME_DYLD_ELF_H
+#define LLVM_RUNTIME_DYLD_ELF_H
+
+#include "RuntimeDyldImpl.h"
+
+using namespace llvm;
+
+
+namespace llvm {
+class RuntimeDyldELF : public RuntimeDyldImpl {
+    // For each symbol, keep a list of relocations based on it. Anytime
+    // its address is reassigned (the JIT re-compiled the function, e.g.),
+    // the relocations get re-resolved.
+    struct RelocationEntry {
+      // Function or section this relocation is contained in.
+      std::string Target;
+      // Offset into the target function or section for the relocation.
+      uint32_t    Offset;
+      // Relocation type
+      uint32_t    Type;
+      // Addend encoded in the instruction itself, if any.
+      int32_t     Addend;
+      // Has the relocation been recalcuated as an offset within a function?
+      bool        IsFunctionRelative;
+      // Has this relocation been resolved previously?
+      bool        isResolved;
+
+      RelocationEntry(StringRef t,
+                      uint32_t offset,
+                      uint32_t type,
+                      int32_t addend,
+                      bool isFunctionRelative)
+        : Target(t)
+        , Offset(offset)
+        , Type(type)
+        , Addend(addend)
+        , IsFunctionRelative(isFunctionRelative)
+        , isResolved(false) { }
+    };
+    typedef SmallVector<RelocationEntry, 4> RelocationList;
+    StringMap<RelocationList> Relocations;
+    unsigned Arch;
+
+    void resolveRelocations();
+
+    void resolveX86_64Relocation(StringRef Name,
+                                 uint8_t *Addr,
+                                 const RelocationEntry &RE);
+
+    void resolveX86Relocation(StringRef Name,
+                              uint8_t *Addr,
+                              const RelocationEntry &RE);
+
+    void resolveArmRelocation(StringRef Name,
+                              uint8_t *Addr,
+                              const RelocationEntry &RE);
+
+    void resolveRelocation(StringRef Name,
+                           uint8_t *Addr,
+                           const RelocationEntry &RE);
+
+public:
+  RuntimeDyldELF(RTDyldMemoryManager *mm) : RuntimeDyldImpl(mm) {}
+
+  bool loadObject(MemoryBuffer *InputBuffer);
+
+  void reassignSymbolAddress(StringRef Name, uint8_t *Addr);
+  void reassignSectionAddress(unsigned SectionID, uint64_t Addr);
+
+  bool isCompatibleFormat(const MemoryBuffer *InputBuffer) const;
+};
+
+} // end namespace llvm
+
+#endif 
+
+//===-- RuntimeDyldELF.h - Run-time dynamic linker for MC-JIT ---*- C++ -*-===//
+//
+//                     The LLVM Compiler Infrastructure
+//
+// This file is distributed under the University of Illinois Open Source
+// License. See LICENSE.TXT for details.
+//
+//===----------------------------------------------------------------------===//
+//
+// ELF support for MC-JIT runtime dynamic linker.
+//
+//===----------------------------------------------------------------------===//
+
+#ifndef LLVM_RUNTIME_DYLD_ELF_H
+#define LLVM_RUNTIME_DYLD_ELF_H
+
+#include "RuntimeDyldImpl.h"
+
+using namespace llvm;
+
+
+namespace llvm {
+class RuntimeDyldELF : public RuntimeDyldImpl {
+    // For each symbol, keep a list of relocations based on it. Anytime
+    // its address is reassigned (the JIT re-compiled the function, e.g.),
+    // the relocations get re-resolved.
+    struct RelocationEntry {
+      // Function or section this relocation is contained in.
+      std::string Target;
+      // Offset into the target function or section for the relocation.
+      uint32_t    Offset;
+      // Relocation type
+      uint32_t    Type;
+      // Addend encoded in the instruction itself, if any.
+      int32_t     Addend;
+      // Has the relocation been recalcuated as an offset within a function?
+      bool        IsFunctionRelative;
+      // Has this relocation been resolved previously?
+      bool        isResolved;
+
+      RelocationEntry(StringRef t,
+                      uint32_t offset,
+                      uint32_t type,
+                      int32_t addend,
+                      bool isFunctionRelative)
+        : Target(t)
+        , Offset(offset)
+        , Type(type)
+        , Addend(addend)
+        , IsFunctionRelative(isFunctionRelative)
+        , isResolved(false) { }
+    };
+    typedef SmallVector<RelocationEntry, 4> RelocationList;
+    StringMap<RelocationList> Relocations;
+    unsigned Arch;
+
+    void resolveRelocations();
+
+    void resolveX86_64Relocation(StringRef Name,
+                                 uint8_t *Addr,
+                                 const RelocationEntry &RE);
+
+    void resolveX86Relocation(StringRef Name,
+                              uint8_t *Addr,
+                              const RelocationEntry &RE);
+
+    void resolveArmRelocation(StringRef Name,
+                              uint8_t *Addr,
+                              const RelocationEntry &RE);
+
+    void resolveRelocation(StringRef Name,
+                           uint8_t *Addr,
+                           const RelocationEntry &RE);
+
+public:
+  RuntimeDyldELF(RTDyldMemoryManager *mm) : RuntimeDyldImpl(mm) {}
+
+  bool loadObject(MemoryBuffer *InputBuffer);
+
+  void reassignSymbolAddress(StringRef Name, uint8_t *Addr);
+  void reassignSectionAddress(unsigned SectionID, uint64_t Addr);
+
+  bool isCompatibleFormat(const MemoryBuffer *InputBuffer) const;
+};
+
+} // end namespace llvm
+
+#endif 
+
diff --git a/lib/ExecutionEngine/RuntimeDyld/RuntimeDyldImpl.h b/lib/ExecutionEngine/RuntimeDyld/RuntimeDyldImpl.h
index 5b98a1fd5d..28e99be9ab 100644
--- a/lib/ExecutionEngine/RuntimeDyld/RuntimeDyldImpl.h
+++ b/lib/ExecutionEngine/RuntimeDyld/RuntimeDyldImpl.h
@@ -15,14 +15,11 @@
 #define LLVM_RUNTIME_DYLD_IMPL_H
 
 #include "llvm/ExecutionEngine/RuntimeDyld.h"
-#include "llvm/Object/MachOObject.h"
 #include "llvm/ADT/DenseMap.h"
-#include "llvm/ADT/IndexedMap.h"
 #include "llvm/ADT/StringMap.h"
 #include "llvm/ADT/Twine.h"
 #include "llvm/ADT/SmallVector.h"
 #include "llvm/ExecutionEngine/ExecutionEngine.h"
-#include "llvm/Support/Format.h"
 #include "llvm/Support/Memory.h"
 #include "llvm/Support/MemoryBuffer.h"
 #include "llvm/Support/system_error.h"
@@ -31,7 +28,6 @@
 #include "llvm/Support/ErrorHandling.h"
 
 using namespace llvm;
-using namespace llvm::object;
 
 namespace llvm {
 class RuntimeDyldImpl {
@@ -109,135 +105,6 @@ public:
   virtual bool isCompatibleFormat(const MemoryBuffer *InputBuffer) const = 0;
 };
 
-class RuntimeDyldELF : public RuntimeDyldImpl {
-    // For each symbol, keep a list of relocations based on it. Anytime
-    // its address is reassigned (the JIT re-compiled the function, e.g.),
-    // the relocations get re-resolved.
-    struct RelocationEntry {
-      // Function or section this relocation is contained in.
-      std::string Target;
-      // Offset into the target function or section for the relocation.
-      uint32_t    Offset;
-      // Relocation type
-      uint32_t    Type;
-      // Addend encoded in the instruction itself, if any.
-      int32_t     Addend;
-      // Has the relocation been recalcuated as an offset within a function?
-      bool        IsFunctionRelative;
-      // Has this relocation been resolved previously?
-      bool        isResolved;
-
-      RelocationEntry(StringRef t,
-                      uint32_t offset,
-                      uint32_t type,
-                      int32_t addend,
-                      bool isFunctionRelative)
-        : Target(t)
-        , Offset(offset)
-        , Type(type)
-        , Addend(addend)
-        , IsFunctionRelative(isFunctionRelative)
-        , isResolved(false) { }
-    };
-    typedef SmallVector<RelocationEntry, 4> RelocationList;
-    StringMap<RelocationList> Relocations;
-    unsigned Arch;
-
-    void resolveRelocations();
-
-    void resolveX86_64Relocation(StringRef Name,
-                                 uint8_t *Addr,
-                                 const RelocationEntry &RE);
-
-    void resolveX86Relocation(StringRef Name,
-                              uint8_t *Addr,
-                              const RelocationEntry &RE);
-
-    void resolveArmRelocation(StringRef Name,
-                              uint8_t *Addr,
-                              const RelocationEntry &RE);
-
-    void resolveRelocation(StringRef Name,
-                           uint8_t *Addr,
-                           const RelocationEntry &RE);
-
-public:
-  RuntimeDyldELF(RTDyldMemoryManager *mm) : RuntimeDyldImpl(mm) {}
-
-  bool loadObject(MemoryBuffer *InputBuffer);
-
-  void reassignSymbolAddress(StringRef Name, uint8_t *Addr);
-  void reassignSectionAddress(unsigned SectionID, uint64_t Addr);
-
-  bool isCompatibleFormat(const MemoryBuffer *InputBuffer) const;
-};
-
-
-class RuntimeDyldMachO : public RuntimeDyldImpl {
-
-  // For each symbol, keep a list of relocations based on it. Anytime
-  // its address is reassigned (the JIT re-compiled the function, e.g.),
-  // the relocations get re-resolved.
-  // The symbol (or section) the relocation is sourced from is the Key
-  // in the relocation list where it's stored.
-  struct RelocationEntry {
-    unsigned    SectionID;  // Section the relocation is contained in.
-    uint64_t    Offset;     // Offset into the section for the relocation.
-    uint32_t    Data;       // Second word of the raw macho relocation entry.
-    int64_t     Addend;     // Addend encoded in the instruction itself, if any,
-                            // plus the offset into the source section for
-                            // the symbol once the relocation is resolvable.
-
-    RelocationEntry(unsigned id, uint64_t offset, uint32_t data, int64_t addend)
-      : SectionID(id), Offset(offset), Data(data), Addend(addend) {}
-  };
-  typedef SmallVector<RelocationEntry, 4> RelocationList;
-  // Relocations to sections already loaded. Indexed by SectionID which is the
-  // source of the address. The target where the address will be writen is
-  // SectionID/Offset in the relocation itself.
-  IndexedMap<RelocationList> Relocations;
-  // Relocations to symbols that are not yet resolved. Must be external
-  // relocations by definition. Indexed by symbol name.
-  StringMap<RelocationList> UnresolvedRelocations;
-
-  bool resolveRelocation(uint8_t *Address, uint64_t Value, bool isPCRel,
-                         unsigned Type, unsigned Size, int64_t Addend);
-  bool resolveX86_64Relocation(uintptr_t Address, uintptr_t Value, bool isPCRel,
-                               unsigned Type, unsigned Size, int64_t Addend);
-  bool resolveARMRelocation(uintptr_t Address, uintptr_t Value, bool isPCRel,
-                            unsigned Type, unsigned Size, int64_t Addend);
-
-  bool loadSegment32(const MachOObject *Obj,
-                     const MachOObject::LoadCommandInfo *SegmentLCI,
-                     const InMemoryStruct<macho::SymtabLoadCommand> &SymtabLC);
-  bool loadSegment64(const MachOObject *Obj,
-                     const MachOObject::LoadCommandInfo *SegmentLCI,
-                     const InMemoryStruct<macho::SymtabLoadCommand> &SymtabLC);
-  bool processSymbols32(const MachOObject *Obj,
-                      SmallVectorImpl<unsigned> &SectionMap,
-                      SmallVectorImpl<StringRef> &SymbolNames,
-                      const InMemoryStruct<macho::SymtabLoadCommand> &SymtabLC);
-  bool processSymbols64(const MachOObject *Obj,
-                      SmallVectorImpl<unsigned> &SectionMap,
-                      SmallVectorImpl<StringRef> &SymbolNames,
-                      const InMemoryStruct<macho::SymtabLoadCommand> &SymtabLC);
-
-  void resolveSymbol(StringRef Name);
-
-public:
-  RuntimeDyldMachO(RTDyldMemoryManager *mm) : RuntimeDyldImpl(mm) {}
-
-  bool loadObject(MemoryBuffer *InputBuffer);
-
-  void reassignSectionAddress(unsigned SectionID, uint64_t Addr);
-
-  static bool isKnownFormat(const MemoryBuffer *InputBuffer);
-
-  bool isCompatibleFormat(const MemoryBuffer *InputBuffer) const {
-    return isKnownFormat(InputBuffer);
-  }
-};
-
 } // end namespace llvm
 
 
diff --git a/lib/ExecutionEngine/RuntimeDyld/RuntimeDyldMachO.cpp b/lib/ExecutionEngine/RuntimeDyld/RuntimeDyldMachO.cpp
index fb005bba45..669ff4c6f8 100644
--- a/lib/ExecutionEngine/RuntimeDyld/RuntimeDyldMachO.cpp
+++ b/lib/ExecutionEngine/RuntimeDyld/RuntimeDyldMachO.cpp
@@ -15,7 +15,7 @@
 #include "llvm/ADT/OwningPtr.h"
 #include "llvm/ADT/StringRef.h"
 #include "llvm/ADT/STLExtras.h"
-#include "RuntimeDyldImpl.h"
+#include "RuntimeDyldMachO.h"
 using namespace llvm;
 using namespace llvm::object;
 
diff --git a/lib/ExecutionEngine/RuntimeDyld/RuntimeDyldMachO.h b/lib/ExecutionEngine/RuntimeDyld/RuntimeDyldMachO.h
new file mode 100644
index 0000000000..b5fa0df006
--- /dev/null
+++ b/lib/ExecutionEngine/RuntimeDyld/RuntimeDyldMachO.h
@@ -0,0 +1,190 @@
+//===-- RuntimeDyldMachO.h - Run-time dynamic linker for MC-JIT ---*- C++ -*-=//
+//
+//                     The LLVM Compiler Infrastructure
+//
+// This file is distributed under the University of Illinois Open Source
+// License. See LICENSE.TXT for details.
+//
+//===----------------------------------------------------------------------===//
+//
+// MachO support for MC-JIT runtime dynamic linker.
+//
+//===----------------------------------------------------------------------===//
+
+#ifndef LLVM_RUNTIME_DYLD_MACHO_H
+#define LLVM_RUNTIME_DYLD_MACHO_H
+
+#include "llvm/ADT/IndexedMap.h"
+#include "llvm/Object/MachOObject.h"
+#include "llvm/Support/Format.h"
+#include "RuntimeDyldImpl.h"
+
+using namespace llvm;
+using namespace llvm::object;
+
+
+namespace llvm {
+class RuntimeDyldMachO : public RuntimeDyldImpl {
+
+  // For each symbol, keep a list of relocations based on it. Anytime
+  // its address is reassigned (the JIT re-compiled the function, e.g.),
+  // the relocations get re-resolved.
+  // The symbol (or section) the relocation is sourced from is the Key
+  // in the relocation list where it's stored.
+  struct RelocationEntry {
+    unsigned    SectionID;  // Section the relocation is contained in.
+    uint64_t    Offset;     // Offset into the section for the relocation.
+    uint32_t    Data;       // Second word of the raw macho relocation entry.
+    int64_t     Addend;     // Addend encoded in the instruction itself, if any,
+                            // plus the offset into the source section for
+                            // the symbol once the relocation is resolvable.
+
+    RelocationEntry(unsigned id, uint64_t offset, uint32_t data, int64_t addend)
+      : SectionID(id), Offset(offset), Data(data), Addend(addend) {}
+  };
+  typedef SmallVector<RelocationEntry, 4> RelocationList;
+  // Relocations to sections already loaded. Indexed by SectionID which is the
+  // source of the address. The target where the address will be writen is
+  // SectionID/Offset in the relocation itself.
+  IndexedMap<RelocationList> Relocations;
+  // Relocations to symbols that are not yet resolved. Must be external
+  // relocations by definition. Indexed by symbol name.
+  StringMap<RelocationList> UnresolvedRelocations;
+
+  bool resolveRelocation(uint8_t *Address, uint64_t Value, bool isPCRel,
+                         unsigned Type, unsigned Size, int64_t Addend);
+  bool resolveX86_64Relocation(uintptr_t Address, uintptr_t Value, bool isPCRel,
+                               unsigned Type, unsigned Size, int64_t Addend);
+  bool resolveARMRelocation(uintptr_t Address, uintptr_t Value, bool isPCRel,
+                            unsigned Type, unsigned Size, int64_t Addend);
+
+  bool loadSegment32(const MachOObject *Obj,
+                     const MachOObject::LoadCommandInfo *SegmentLCI,
+                     const InMemoryStruct<macho::SymtabLoadCommand> &SymtabLC);
+  bool loadSegment64(const MachOObject *Obj,
+                     const MachOObject::LoadCommandInfo *SegmentLCI,
+                     const InMemoryStruct<macho::SymtabLoadCommand> &SymtabLC);
+  bool processSymbols32(const MachOObject *Obj,
+                      SmallVectorImpl<unsigned> &SectionMap,
+                      SmallVectorImpl<StringRef> &SymbolNames,
+                      const InMemoryStruct<macho::SymtabLoadCommand> &SymtabLC);
+  bool processSymbols64(const MachOObject *Obj,
+                      SmallVectorImpl<unsigned> &SectionMap,
+                      SmallVectorImpl<StringRef> &SymbolNames,
+                      const InMemoryStruct<macho::SymtabLoadCommand> &SymtabLC);
+
+  void resolveSymbol(StringRef Name);
+
+public:
+  RuntimeDyldMachO(RTDyldMemoryManager *mm) : RuntimeDyldImpl(mm) {}
+
+  bool loadObject(MemoryBuffer *InputBuffer);
+
+  void reassignSectionAddress(unsigned SectionID, uint64_t Addr);
+
+  static bool isKnownFormat(const MemoryBuffer *InputBuffer);
+
+  bool isCompatibleFormat(const MemoryBuffer *InputBuffer) const {
+    return isKnownFormat(InputBuffer);
+  }
+};
+
+} // end namespace llvm
+
+#endif
+
+//===-- RuntimeDyldMachO.h - Run-time dynamic linker for MC-JIT ---*- C++ -*-=//
+//
+//                     The LLVM Compiler Infrastructure
+//
+// This file is distributed under the University of Illinois Open Source
+// License. See LICENSE.TXT for details.
+//
+//===----------------------------------------------------------------------===//
+//
+// MachO support for MC-JIT runtime dynamic linker.
+//
+//===----------------------------------------------------------------------===//
+
+#ifndef LLVM_RUNTIME_DYLD_MACHO_H
+#define LLVM_RUNTIME_DYLD_MACHO_H
+
+#include "llvm/ADT/IndexedMap.h"
+#include "llvm/Object/MachOObject.h"
+#include "llvm/Support/Format.h"
+#include "RuntimeDyldImpl.h"
+
+using namespace llvm;
+using namespace llvm::object;
+
+
+namespace llvm {
+class RuntimeDyldMachO : public RuntimeDyldImpl {
+
+  // For each symbol, keep a list of relocations based on it. Anytime
+  // its address is reassigned (the JIT re-compiled the function, e.g.),
+  // the relocations get re-resolved.
+  // The symbol (or section) the relocation is sourced from is the Key
+  // in the relocation list where it's stored.
+  struct RelocationEntry {
+    unsigned    SectionID;  // Section the relocation is contained in.
+    uint64_t    Offset;     // Offset into the section for the relocation.
+    uint32_t    Data;       // Second word of the raw macho relocation entry.
+    int64_t     Addend;     // Addend encoded in the instruction itself, if any,
+                            // plus the offset into the source section for
+                            // the symbol once the relocation is resolvable.
+
+    RelocationEntry(unsigned id, uint64_t offset, uint32_t data, int64_t addend)
+      : SectionID(id), Offset(offset), Data(data), Addend(addend) {}
+  };
+  typedef SmallVector<RelocationEntry, 4> RelocationList;
+  // Relocations to sections already loaded. Indexed by SectionID which is the
+  // source of the address. The target where the address will be writen is
+  // SectionID/Offset in the relocation itself.
+  IndexedMap<RelocationList> Relocations;
+  // Relocations to symbols that are not yet resolved. Must be external
+  // relocations by definition. Indexed by symbol name.
+  StringMap<RelocationList> UnresolvedRelocations;
+
+  bool resolveRelocation(uint8_t *Address, uint64_t Value, bool isPCRel,
+                         unsigned Type, unsigned Size, int64_t Addend);
+  bool resolveX86_64Relocation(uintptr_t Address, uintptr_t Value, bool isPCRel,
+                               unsigned Type, unsigned Size, int64_t Addend);
+  bool resolveARMRelocation(uintptr_t Address, uintptr_t Value, bool isPCRel,
+                            unsigned Type, unsigned Size, int64_t Addend);
+
+  bool loadSegment32(const MachOObject *Obj,
+                     const MachOObject::LoadCommandInfo *SegmentLCI,
+                     const InMemoryStruct<macho::SymtabLoadCommand> &SymtabLC);
+  bool loadSegment64(const MachOObject *Obj,
+                     const MachOObject::LoadCommandInfo *SegmentLCI,
+                     const InMemoryStruct<macho::SymtabLoadCommand> &SymtabLC);
+  bool processSymbols32(const MachOObject *Obj,
+                      SmallVectorImpl<unsigned> &SectionMap,
+                      SmallVectorImpl<StringRef> &SymbolNames,
+                      const InMemoryStruct<macho::SymtabLoadCommand> &SymtabLC);
+  bool processSymbols64(const MachOObject *Obj,
+                      SmallVectorImpl<unsigned> &SectionMap,
+                      SmallVectorImpl<StringRef> &SymbolNames,
+                      const InMemoryStruct<macho::SymtabLoadCommand> &SymtabLC);
+
+  void resolveSymbol(StringRef Name);
+
+public:
+  RuntimeDyldMachO(RTDyldMemoryManager *mm) : RuntimeDyldImpl(mm) {}
+
+  bool loadObject(MemoryBuffer *InputBuffer);
+
+  void reassignSectionAddress(unsigned SectionID, uint64_t Addr);
+
+  static bool isKnownFormat(const MemoryBuffer *InputBuffer);
+
+  bool isCompatibleFormat(const MemoryBuffer *InputBuffer) const {
+    return isKnownFormat(InputBuffer);
+  }
+};
+
+} // end namespace llvm
+
+#endif
+