X-Git-Url: http://plrg.eecs.uci.edu/git/?a=blobdiff_plain;f=lib%2FObject%2FObjectFile.cpp;h=f82edae89bc6d98d41cd69389b61003b34fe83c8;hb=ddc6f0a433f47aa04007621c1df7fee509a48794;hp=5d4324923445812c5168602d0c047658613fd804;hpb=5c792faa0e5560bc148c973f3df658eb3bb2061e;p=oota-llvm.git

diff --git a/lib/Object/ObjectFile.cpp b/lib/Object/ObjectFile.cpp
index 5d432492344..f82edae89bc 100644
--- a/lib/Object/ObjectFile.cpp
+++ b/lib/Object/ObjectFile.cpp
@@ -11,6 +11,8 @@
 //
 //===----------------------------------------------------------------------===//
 
+#include "llvm/Object/COFF.h"
+#include "llvm/Object/MachO.h"
 #include "llvm/Object/ObjectFile.h"
 #include "llvm/Support/ErrorHandling.h"
 #include "llvm/Support/FileSystem.h"
@@ -20,38 +22,48 @@
 
 using namespace llvm;
 using namespace object;
-using std::error_code;
 
 void ObjectFile::anchor() { }
 
-ObjectFile::ObjectFile(unsigned int Type, MemoryBuffer *Source,
-                       bool BufferOwned)
-    : SymbolicFile(Type, Source, BufferOwned) {}
+ObjectFile::ObjectFile(unsigned int Type, MemoryBufferRef Source)
+    : SymbolicFile(Type, Source) {}
 
-error_code ObjectFile::printSymbolName(raw_ostream &OS,
-                                       DataRefImpl Symb) const {
-  StringRef Name;
-  if (error_code EC = getSymbolName(Symb, Name))
-    return EC;
-  OS << Name;
-  return object_error::success;
+bool SectionRef::containsSymbol(SymbolRef S) const {
+  section_iterator SymSec = getObject()->section_end();
+  if (S.getSection(SymSec))
+    return false;
+  return *this == *SymSec;
+}
+
+uint64_t ObjectFile::getSymbolValue(DataRefImpl Ref) const {
+  uint32_t Flags = getSymbolFlags(Ref);
+  if (Flags & SymbolRef::SF_Undefined)
+    return 0;
+  if (Flags & SymbolRef::SF_Common)
+    return getCommonSymbolSize(Ref);
+  return getSymbolValueImpl(Ref);
 }
 
-error_code ObjectFile::getSymbolAlignment(DataRefImpl DRI,
-                                          uint32_t &Result) const {
-  Result = 0;
-  return object_error::success;
+std::error_code ObjectFile::printSymbolName(raw_ostream &OS,
+                                            DataRefImpl Symb) const {
+  ErrorOr<StringRef> Name = getSymbolName(Symb);
+  if (std::error_code EC = Name.getError())
+    return EC;
+  OS << *Name;
+  return std::error_code();
 }
 
+uint32_t ObjectFile::getSymbolAlignment(DataRefImpl DRI) const { return 0; }
+
 section_iterator ObjectFile::getRelocatedSection(DataRefImpl Sec) const {
   return section_iterator(SectionRef(Sec, this));
 }
 
-ErrorOr<ObjectFile *> ObjectFile::createObjectFile(MemoryBuffer *Object,
-                                                   bool BufferOwned,
-                                                   sys::fs::file_magic Type) {
+ErrorOr<std::unique_ptr<ObjectFile>>
+ObjectFile::createObjectFile(MemoryBufferRef Object, sys::fs::file_magic Type) {
+  StringRef Data = Object.getBuffer();
   if (Type == sys::fs::file_magic::unknown)
-    Type = sys::fs::identify_magic(Object->getBuffer());
+    Type = sys::fs::identify_magic(Data);
 
   switch (Type) {
   case sys::fs::file_magic::unknown:
@@ -59,14 +71,13 @@ ErrorOr<ObjectFile *> ObjectFile::createObjectFile(MemoryBuffer *Object,
   case sys::fs::file_magic::archive:
   case sys::fs::file_magic::macho_universal_binary:
   case sys::fs::file_magic::windows_resource:
-    if (BufferOwned)
-      delete Object;
     return object_error::invalid_file_type;
+  case sys::fs::file_magic::elf:
   case sys::fs::file_magic::elf_relocatable:
   case sys::fs::file_magic::elf_executable:
   case sys::fs::file_magic::elf_shared_object:
   case sys::fs::file_magic::elf_core:
-    return createELFObjectFile(Object, BufferOwned);
+    return createELFObjectFile(Object);
   case sys::fs::file_magic::macho_object:
   case sys::fs::file_magic::macho_executable:
   case sys::fs::file_magic::macho_fixed_virtual_memory_shared_lib:
@@ -77,18 +88,29 @@ ErrorOr<ObjectFile *> ObjectFile::createObjectFile(MemoryBuffer *Object,
   case sys::fs::file_magic::macho_bundle:
   case sys::fs::file_magic::macho_dynamically_linked_shared_lib_stub:
   case sys::fs::file_magic::macho_dsym_companion:
-    return createMachOObjectFile(Object, BufferOwned);
+  case sys::fs::file_magic::macho_kext_bundle:
+    return createMachOObjectFile(Object);
   case sys::fs::file_magic::coff_object:
   case sys::fs::file_magic::coff_import_library:
   case sys::fs::file_magic::pecoff_executable:
-    return createCOFFObjectFile(Object, BufferOwned);
+    return createCOFFObjectFile(Object);
   }
   llvm_unreachable("Unexpected Object File Type");
 }
 
-ErrorOr<ObjectFile *> ObjectFile::createObjectFile(StringRef ObjectPath) {
-  std::unique_ptr<MemoryBuffer> File;
-  if (error_code EC = MemoryBuffer::getFile(ObjectPath, File))
+ErrorOr<OwningBinary<ObjectFile>>
+ObjectFile::createObjectFile(StringRef ObjectPath) {
+  ErrorOr<std::unique_ptr<MemoryBuffer>> FileOrErr =
+      MemoryBuffer::getFile(ObjectPath);
+  if (std::error_code EC = FileOrErr.getError())
+    return EC;
+  std::unique_ptr<MemoryBuffer> Buffer = std::move(FileOrErr.get());
+
+  ErrorOr<std::unique_ptr<ObjectFile>> ObjOrErr =
+      createObjectFile(Buffer->getMemBufferRef());
+  if (std::error_code EC = ObjOrErr.getError())
     return EC;
-  return createObjectFile(File.release());
+  std::unique_ptr<ObjectFile> Obj = std::move(ObjOrErr.get());
+
+  return OwningBinary<ObjectFile>(std::move(Obj), std::move(Buffer));
 }