1 files changed, 60 insertions, 0 deletions
diff --git a/llvm/lib/ExecutionEngine/RuntimeDyld/Targets/RuntimeDyldCOFFX86_64.h b/llvm/lib/ExecutionEngine/RuntimeDyld/Targets/RuntimeDyldCOFFX86_64.h
new file mode 100644
index 00000000000..fe5ae90fc86
--- /dev/null
+++ b/llvm/lib/ExecutionEngine/RuntimeDyld/Targets/RuntimeDyldCOFFX86_64.h
@@ -0,0 +1,60 @@
+//===-- RuntimeDyldCOFFX86_64.h --- COFF/X86_64 specific code ---*- C++ -*-===//
+//
+//                     The LLVM Compiler Infrastructure
+//
+// This file is distributed under the University of Illinois Open Source
+// License. See LICENSE.TXT for details.
+//
+//===----------------------------------------------------------------------===//
+//
+// COFF x86_x64 support for MC-JIT runtime dynamic linker.
+//
+//===----------------------------------------------------------------------===//
+
+#ifndef LLVM_LIB_EXECUTIONENGINE_RUNTIMEDYLD_TARGETS_RUNTIMEDYLDCOFF86_64_H
+#define LLVM_LIB_EXECUTIONENGINE_RUNTIMEDYLD_TARGETS_RUNTIMEDYLDCOFF86_64_H
+
+#include "llvm/Object/COFF.h"
+#include "llvm/Support/COFF.h"
+#include "../RuntimeDyldCOFF.h"
+
+using namespace llvm;
+
+namespace llvm {
+
+class RuntimeDyldCOFFX86_64 : public RuntimeDyldCOFF {
+
+private:
+  // When a module is loaded we save the SectionID of the unwind
+  // sections in a table until we receive a request to register all
+  // unregisteredEH frame sections with the memory manager.
+  SmallVector<SID, 2> UnregisteredEHFrameSections;
+  SmallVector<SID, 2> RegisteredEHFrameSections;
+
+public:
+  RuntimeDyldCOFFX86_64(RTDyldMemoryManager *MM) : RuntimeDyldCOFF(MM) {}
+
+  unsigned getMaxStubSize() override {
+    return 6; // 2-byte jmp instruction + 32-bit relative address
+  }
+
+  void resolveRelocation(const RelocationEntry &RE, uint64_t Value) override;
+
+  relocation_iterator processRelocationRef(unsigned SectionID,
+                                           relocation_iterator RelI,
+                                           const ObjectFile &Obj,
+                                           ObjSectionToIDMap &ObjSectionToID,
+                                           StubMap &Stubs) override;
+
+  unsigned getStubAlignment() override { return 1; }
+  void registerEHFrames() override;
+  void deregisterEHFrames() override;
+  void finalizeLoad(const ObjectFile &Obj,
+                    ObjSectionToIDMap &SectionMap) override;
+};
+
+} // end namespace llvm
+
+#undef DEBUG_TYPE
+
+#endif