From 69aec36f9b3129ba6eb83d64cde31c3d86d6d39a Mon Sep 17 00:00:00 2001
From: "Michael J. Spencer" <bigcheesegs@gmail.com>
Date: Mon, 13 Jun 2011 11:12:33 +0000
Subject: Make Binary the parent of ObjectFile and update children to new
 interface.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@132911 91177308-0d34-0410-b5e6-96231b3b80d8
---
 lib/Object/Binary.cpp | 52 ++++++++++++++++++++++++++++++++++++++++++++++++---
 1 file changed, 49 insertions(+), 3 deletions(-)

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

diff --git a/lib/Object/Binary.cpp b/lib/Object/Binary.cpp
index 75f5a58ac0..4b31c7557d 100644
--- a/lib/Object/Binary.cpp
+++ b/lib/Object/Binary.cpp
@@ -16,6 +16,10 @@
 #include "llvm/Support/MemoryBuffer.h"
 #include "llvm/Support/Path.h"
 
+// Include headers for createBinary.
+#include "llvm/Object/ObjectFile.h"
+#include "llvm/Object/COFF.h"
+
 using namespace llvm;
 using namespace object;
 
@@ -37,9 +41,51 @@ StringRef Binary::getFileName() const {
 
 error_code object::createBinary(MemoryBuffer *Source,
                                 OwningPtr<Binary> &Result) {
-  // We don't support any at the moment.
-  delete Source;
-  return object_error::invalid_file_type;
+  OwningPtr<MemoryBuffer> scopedSource(Source);
+  if (!Source)
+    return make_error_code(errc::invalid_argument);
+  if (Source->getBufferSize() < 64)
+    return object_error::invalid_file_type;
+  sys::LLVMFileType type = sys::IdentifyFileType(Source->getBufferStart(),
+                                static_cast<unsigned>(Source->getBufferSize()));
+  error_code ec;
+  switch (type) {
+    case sys::ELF_Relocatable_FileType:
+    case sys::ELF_Executable_FileType:
+    case sys::ELF_SharedObject_FileType:
+    case sys::ELF_Core_FileType: {
+      OwningPtr<Binary> ret(
+        ObjectFile::createELFObjectFile(scopedSource.take()));
+      if (!ret)
+        return object_error::invalid_file_type;
+      Result.swap(ret);
+      return object_error::success;
+    }
+    case sys::Mach_O_Object_FileType:
+    case sys::Mach_O_Executable_FileType:
+    case sys::Mach_O_FixedVirtualMemorySharedLib_FileType:
+    case sys::Mach_O_Core_FileType:
+    case sys::Mach_O_PreloadExecutable_FileType:
+    case sys::Mach_O_DynamicallyLinkedSharedLib_FileType:
+    case sys::Mach_O_DynamicLinker_FileType:
+    case sys::Mach_O_Bundle_FileType:
+    case sys::Mach_O_DynamicallyLinkedSharedLibStub_FileType: {
+      OwningPtr<Binary> ret(
+        ObjectFile::createMachOObjectFile(scopedSource.take()));
+      if (!ret)
+        return object_error::invalid_file_type;
+      Result.swap(ret);
+      return object_error::success;
+    }
+    case sys::COFF_FileType: {
+      OwningPtr<Binary> ret(new COFFObjectFile(scopedSource.take(), ec));
+      if (ec) return ec;
+      Result.swap(ret);
+      return object_error::success;
+    }
+    default: // Unrecognized object file format.
+      return object_error::invalid_file_type;
+  }
 }
 
 error_code object::createBinary(StringRef Path, OwningPtr<Binary> &Result) {
-- 
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