From 5ca98fd98791947eba83a1ed3f2c8191ef7afa6c Mon Sep 17 00:00:00 2001
From: Dimitry Andric <dim@FreeBSD.org>
Date: Mon, 24 Nov 2014 09:08:18 +0000
Subject: Vendor import of llvm RELEASE_350/final tag r216957 (effectively,
 3.5.0 release):
 https://llvm.org/svn/llvm-project/llvm/tags/RELEASE_350/final@216957

---
 lib/Object/Binary.cpp | 85 +++++++++++++++------------------------------------
 1 file changed, 25 insertions(+), 60 deletions(-)

(limited to 'lib/Object/Binary.cpp')

diff --git a/lib/Object/Binary.cpp b/lib/Object/Binary.cpp
index de57b4c9a742..552d5db89c54 100644
--- a/lib/Object/Binary.cpp
+++ b/lib/Object/Binary.cpp
@@ -13,26 +13,22 @@
 
 #include "llvm/Object/Binary.h"
 #include "llvm/ADT/StringRef.h"
-#include "llvm/Support/MemoryBuffer.h"
 #include "llvm/Support/FileSystem.h"
+#include "llvm/Support/MemoryBuffer.h"
 #include "llvm/Support/Path.h"
 
 // Include headers for createBinary.
 #include "llvm/Object/Archive.h"
-#include "llvm/Object/COFF.h"
 #include "llvm/Object/MachOUniversal.h"
 #include "llvm/Object/ObjectFile.h"
 
 using namespace llvm;
 using namespace object;
 
-Binary::~Binary() {
-  delete Data;
-}
+Binary::~Binary() {}
 
-Binary::Binary(unsigned int Type, MemoryBuffer *Source)
-  : TypeID(Type)
-  , Data(Source) {}
+Binary::Binary(unsigned int Type, std::unique_ptr<MemoryBuffer> Source)
+    : TypeID(Type), Data(std::move(Source)) {}
 
 StringRef Binary::getData() const {
   return Data->getBuffer();
@@ -42,31 +38,17 @@ StringRef Binary::getFileName() const {
   return Data->getBufferIdentifier();
 }
 
-error_code object::createBinary(MemoryBuffer *Source,
-                                OwningPtr<Binary> &Result) {
-  OwningPtr<MemoryBuffer> scopedSource(Source);
-  if (!Source)
-    return make_error_code(errc::invalid_argument);
-  sys::fs::file_magic type = sys::fs::identify_magic(Source->getBuffer());
-  error_code ec;
-  switch (type) {
-    case sys::fs::file_magic::archive: {
-      OwningPtr<Binary> ret(new Archive(scopedSource.take(), ec));
-      if (ec) return ec;
-      Result.swap(ret);
-      return object_error::success;
-    }
+ErrorOr<Binary *> object::createBinary(std::unique_ptr<MemoryBuffer> Buffer,
+                                       LLVMContext *Context) {
+  sys::fs::file_magic Type = sys::fs::identify_magic(Buffer->getBuffer());
+
+  switch (Type) {
+    case sys::fs::file_magic::archive:
+      return Archive::create(std::move(Buffer));
     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: {
-      OwningPtr<Binary> ret(
-        ObjectFile::createELFObjectFile(scopedSource.take()));
-      if (!ret)
-        return object_error::invalid_file_type;
-      Result.swap(ret);
-      return object_error::success;
-    }
+    case sys::fs::file_magic::elf_core:
     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:
@@ -76,43 +58,26 @@ error_code object::createBinary(MemoryBuffer *Source,
     case sys::fs::file_magic::macho_dynamic_linker:
     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: {
-      OwningPtr<Binary> ret(
-        ObjectFile::createMachOObjectFile(scopedSource.take()));
-      if (!ret)
-        return object_error::invalid_file_type;
-      Result.swap(ret);
-      return object_error::success;
-    }
-    case sys::fs::file_magic::macho_universal_binary: {
-      OwningPtr<Binary> ret(new MachOUniversalBinary(scopedSource.take(), ec));
-      if (ec) return ec;
-      Result.swap(ret);
-      return object_error::success;
-    }
+    case sys::fs::file_magic::macho_dsym_companion:
     case sys::fs::file_magic::coff_object:
     case sys::fs::file_magic::coff_import_library:
-    case sys::fs::file_magic::pecoff_executable: {
-      OwningPtr<Binary> ret(
-          ObjectFile::createCOFFObjectFile(scopedSource.take()));
-      if (!ret)
-        return object_error::invalid_file_type;
-      Result.swap(ret);
-      return object_error::success;
-    }
-    case sys::fs::file_magic::unknown:
+    case sys::fs::file_magic::pecoff_executable:
     case sys::fs::file_magic::bitcode:
-    case sys::fs::file_magic::windows_resource: {
+      return ObjectFile::createSymbolicFile(Buffer, Type, Context);
+    case sys::fs::file_magic::macho_universal_binary:
+      return MachOUniversalBinary::create(std::move(Buffer));
+    case sys::fs::file_magic::unknown:
+    case sys::fs::file_magic::windows_resource:
       // Unrecognized object file format.
       return object_error::invalid_file_type;
-    }
   }
   llvm_unreachable("Unexpected Binary File Type");
 }
 
-error_code object::createBinary(StringRef Path, OwningPtr<Binary> &Result) {
-  OwningPtr<MemoryBuffer> File;
-  if (error_code ec = MemoryBuffer::getFileOrSTDIN(Path, File))
-    return ec;
-  return createBinary(File.take(), Result);
+ErrorOr<Binary *> object::createBinary(StringRef Path) {
+  ErrorOr<std::unique_ptr<MemoryBuffer>> FileOrErr =
+      MemoryBuffer::getFileOrSTDIN(Path);
+  if (std::error_code EC = FileOrErr.getError())
+    return EC;
+  return createBinary(std::move(*FileOrErr));
 }
-- 
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