Reverting r222828 and r222810-r222812 as they broke the build on Windows.

[oota-llvm.git] / lib / ExecutionEngine / RuntimeDyld / RuntimeDyldMachO.cpp

diff --git a/lib/ExecutionEngine/RuntimeDyld/RuntimeDyldMachO.cpp b/lib/ExecutionEngine/RuntimeDyld/RuntimeDyldMachO.cpp
index 81020dc771273cf2bd293541a4e94c370068ebfb..d3d6f5d2546e0166083627f656937166b36544b2 100644 (file)
--- a/lib/ExecutionEngine/RuntimeDyld/RuntimeDyldMachO.cpp
+++ b/lib/ExecutionEngine/RuntimeDyld/RuntimeDyldMachO.cpp
@@ -25,22 +25,6 @@ using namespace llvm::object;
 
 #define DEBUG_TYPE "dyld"
 
-namespace {
-
-class LoadedMachOObjectInfo : public RuntimeDyld::LoadedObjectInfo {
-public:
-  LoadedMachOObjectInfo(RuntimeDyldImpl &RTDyld, unsigned BeginIdx,
-                        unsigned EndIdx)
-    : RuntimeDyld::LoadedObjectInfo(RTDyld, BeginIdx, EndIdx) {}
-
-  OwningBinary<ObjectFile>
-  getObjectForDebug(const ObjectFile &Obj) const override {
-    return OwningBinary<ObjectFile>();
-  }
-};
-
-}
-
 namespace llvm {
 
 int64_t RuntimeDyldMachO::memcpyAddend(const RelocationEntry &RE) const {
@@ -51,12 +35,12 @@ int64_t RuntimeDyldMachO::memcpyAddend(const RelocationEntry &RE) const {
 }
 
 RelocationValueRef RuntimeDyldMachO::getRelocationValueRef(
-    const ObjectFile &BaseTObj, const relocation_iterator &RI,
+    ObjectImage &ObjImg, const relocation_iterator &RI,
     const RelocationEntry &RE, ObjSectionToIDMap &ObjSectionToID,
     const SymbolTableMap &Symbols) {
 
   const MachOObjectFile &Obj =
-      static_cast<const MachOObjectFile &>(BaseTObj);
+      static_cast<const MachOObjectFile &>(*ObjImg.getObjectFile());
   MachO::any_relocation_info RelInfo =
       Obj.getRelocation(RI->getRawDataRefImpl());
   RelocationValueRef Value;
@@ -83,7 +67,7 @@ RelocationValueRef RuntimeDyldMachO::getRelocationValueRef(
   } else {
     SectionRef Sec = Obj.getRelocationSection(RelInfo);
     bool IsCode = Sec.isText();
-    Value.SectionID = findOrEmitSection(Obj, Sec, IsCode, ObjSectionToID);
+    Value.SectionID = findOrEmitSection(ObjImg, Sec, IsCode, ObjSectionToID);
     uint64_t Addr = Sec.getAddress();
     Value.Offset = RE.Addend - Addr;
   }
@@ -92,11 +76,11 @@ RelocationValueRef RuntimeDyldMachO::getRelocationValueRef(
 }
 
 void RuntimeDyldMachO::makeValueAddendPCRel(RelocationValueRef &Value,
-                                            const ObjectFile &BaseTObj,
+                                            ObjectImage &ObjImg,
                                             const relocation_iterator &RI,
                                             unsigned OffsetToNextPC) {
   const MachOObjectFile &Obj =
-      static_cast<const MachOObjectFile &>(BaseTObj);
+      static_cast<const MachOObjectFile &>(*ObjImg.getObjectFile());
   MachO::any_relocation_info RelInfo =
       Obj.getRelocation(RI->getRawDataRefImpl());
 
@@ -141,7 +125,7 @@ RuntimeDyldMachO::getSectionByAddress(const MachOObjectFile &Obj,
 
 // Populate __pointers section.
 void RuntimeDyldMachO::populateIndirectSymbolPointersSection(
-                                                    const MachOObjectFile &Obj,
+                                                    MachOObjectFile &Obj,
                                                     const SectionRef &PTSection,
                                                     unsigned PTSectionID) {
   assert(!Obj.is64Bit() &&
@@ -179,12 +163,28 @@ void RuntimeDyldMachO::populateIndirectSymbolPointersSection(
   }
 }
 
-bool RuntimeDyldMachO::isCompatibleFile(const object::ObjectFile &Obj) const {
-  return Obj.isMachO();
+bool
+RuntimeDyldMachO::isCompatibleFormat(const ObjectBuffer *InputBuffer) const {
+  if (InputBuffer->getBufferSize() < 4)
+    return false;
+  StringRef Magic(InputBuffer->getBufferStart(), 4);
+  if (Magic == "\xFE\xED\xFA\xCE")
+    return true;
+  if (Magic == "\xCE\xFA\xED\xFE")
+    return true;
+  if (Magic == "\xFE\xED\xFA\xCF")
+    return true;
+  if (Magic == "\xCF\xFA\xED\xFE")
+    return true;
+  return false;
+}
+
+bool RuntimeDyldMachO::isCompatibleFile(const object::ObjectFile *Obj) const {
+  return Obj->isMachO();
 }
 
 template <typename Impl>
-void RuntimeDyldMachOCRTPBase<Impl>::finalizeLoad(const ObjectFile &ObjImg,
+void RuntimeDyldMachOCRTPBase<Impl>::finalizeLoad(ObjectImage &ObjImg,
                                                   ObjSectionToIDMap &SectionMap) {
   unsigned EHFrameSID = RTDYLD_INVALID_SECTION_ID;
   unsigned TextSID = RTDYLD_INVALID_SECTION_ID;
@@ -284,7 +284,7 @@ void RuntimeDyldMachOCRTPBase<Impl>::registerEHFrames() {
 }
 
 std::unique_ptr<RuntimeDyldMachO>
-RuntimeDyldMachO::create(Triple::ArchType Arch, RTDyldMemoryManager *MM) {
+llvm::RuntimeDyldMachO::create(Triple::ArchType Arch, RTDyldMemoryManager *MM) {
   switch (Arch) {
   default:
     llvm_unreachable("Unsupported target for RuntimeDyldMachO.");
@@ -296,12 +296,4 @@ RuntimeDyldMachO::create(Triple::ArchType Arch, RTDyldMemoryManager *MM) {
   }
 }
 
-std::unique_ptr<RuntimeDyld::LoadedObjectInfo>
-RuntimeDyldMachO::loadObject(const object::ObjectFile &O) {
-  unsigned SectionStartIdx, SectionEndIdx;
-  std::tie(SectionStartIdx, SectionEndIdx) = loadObjectImpl(O);
-  return llvm::make_unique<LoadedMachOObjectInfo>(*this, SectionStartIdx,
-                                                  SectionEndIdx);
-}
-
 } // end namespace llvm