From 6f1f33915a09a862fd83e7c9f1dc465c2b9e427c Mon Sep 17 00:00:00 2001
From: Rafael Espindola <rafael.espindola@gmail.com>
Date: Sun, 7 Apr 2013 16:58:48 +0000
Subject: [PATCH] Construct MachOObject in MachOObjectFile's constructor.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@178988 91177308-0d34-0410-b5e6-96231b3b80d8
---
 include/llvm/Object/MachO.h    |  2 +-
 lib/Object/MachOObjectFile.cpp | 36 +++++++++++++++++++---------------
 2 files changed, 21 insertions(+), 17 deletions(-)

diff --git a/include/llvm/Object/MachO.h b/include/llvm/Object/MachO.h
index f3b47a0f333..9bd591a5406 100644
--- a/include/llvm/Object/MachO.h
+++ b/include/llvm/Object/MachO.h
@@ -126,7 +126,7 @@ typedef MachOObject::LoadCommandInfo LoadCommandInfo;
 
 class MachOObjectFile : public ObjectFile {
 public:
-  MachOObjectFile(MemoryBuffer *Object, MachOObject *MOO, error_code &ec);
+  MachOObjectFile(MemoryBuffer *Object, error_code &ec);
 
   virtual symbol_iterator begin_symbols() const;
   virtual symbol_iterator end_symbols() const;
diff --git a/lib/Object/MachOObjectFile.cpp b/lib/Object/MachOObjectFile.cpp
index 6f888faf9c9..c817942ca1a 100644
--- a/lib/Object/MachOObjectFile.cpp
+++ b/lib/Object/MachOObjectFile.cpp
@@ -27,10 +27,23 @@ using namespace object;
 namespace llvm {
 namespace object {
 
-MachOObjectFile::MachOObjectFile(MemoryBuffer *Object, MachOObject *MOO,
-                                 error_code &ec)
-    : ObjectFile(Binary::ID_MachO, Object),
-      MachOObj(MOO) {
+MachOObjectFile::MachOObjectFile(MemoryBuffer *Object, error_code &ec)
+    : ObjectFile(Binary::ID_MachO, Object) {
+  // MachOObject takes ownership of the Buffer we passed to it, and
+  // MachOObjectFile does, too, so we need to make sure they don't get the
+  // same object. A MemoryBuffer is cheap (it's just a reference to memory,
+  // not a copy of the memory itself), so just make a new copy here for
+  // the MachOObjectFile.
+  MemoryBuffer *NewBuffer =
+    MemoryBuffer::getMemBuffer(Object->getBuffer(),
+                               Object->getBufferIdentifier(), false);
+  std::string ErrorStr;
+  MachOObj.reset(MachOObject::LoadFromBuffer(NewBuffer, &ErrorStr));
+  if (!MachOObj) {
+    ec = object_error::parse_failed;
+    return;
+  }
+
   DataRefImpl DRI;
   moveToNextSection(DRI);
   uint32_t LoadCommandCount = MachOObj->getHeader().NumLoadCommands;
@@ -61,19 +74,10 @@ const macho::Header &MachOObjectFile::getHeader() const {
 
 ObjectFile *ObjectFile::createMachOObjectFile(MemoryBuffer *Buffer) {
   error_code ec;
-  std::string Err;
-  MachOObject *MachOObj = MachOObject::LoadFromBuffer(Buffer, &Err);
-  if (!MachOObj)
+  ObjectFile *Ret = new MachOObjectFile(Buffer, ec);
+  if (ec)
     return NULL;
-  // MachOObject takes ownership of the Buffer we passed to it, and
-  // MachOObjectFile does, too, so we need to make sure they don't get the
-  // same object. A MemoryBuffer is cheap (it's just a reference to memory,
-  // not a copy of the memory itself), so just make a new copy here for
-  // the MachOObjectFile.
-  MemoryBuffer *NewBuffer =
-    MemoryBuffer::getMemBuffer(Buffer->getBuffer(),
-                               Buffer->getBufferIdentifier(), false);
-  return new MachOObjectFile(NewBuffer, MachOObj, ec);
+  return Ret;
 }
 
 /*===-- Symbols -----------------------------------------------------------===*/
-- 
2.34.1