From 8cff17469fa144bd7e8f19fa30aa881eb85983a3 Mon Sep 17 00:00:00 2001
From: Rui Ueyama <ruiu@google.com>
Date: Fri, 28 Aug 2015 06:03:01 +0000
Subject: Rollback r246276 - Object: Teach llvm-ar to create symbol table for
 COFF short import files

This change caused a test for llvm-readobj to fail.

llvm-svn: 246277
---
 llvm/lib/Object/SymbolicFile.cpp | 47 +---------------------------------------
 1 file changed, 1 insertion(+), 46 deletions(-)

(limited to 'llvm/lib/Object/SymbolicFile.cpp')

diff --git a/llvm/lib/Object/SymbolicFile.cpp b/llvm/lib/Object/SymbolicFile.cpp
index c3106319c7f..854e68e40f4 100644
--- a/llvm/lib/Object/SymbolicFile.cpp
+++ b/llvm/lib/Object/SymbolicFile.cpp
@@ -11,58 +11,14 @@
 //
 //===----------------------------------------------------------------------===//
 
-#include "llvm/Object/COFF.h"
 #include "llvm/Object/IRObjectFile.h"
 #include "llvm/Object/ObjectFile.h"
 #include "llvm/Object/SymbolicFile.h"
-#include "llvm/Support/COFF.h"
 #include "llvm/Support/MemoryBuffer.h"
 
 using namespace llvm;
 using namespace object;
 
-// COFF short import file is a special kind of file which contains
-// only symbol names for DLL-exported symbols. This class implements
-// SymbolicFile interface for the file.
-namespace {
-class COFFImportFile : public SymbolicFile {
-public:
-  COFFImportFile(MemoryBufferRef Source)
-      : SymbolicFile(sys::fs::file_magic::coff_import_library, Source) {}
-
-  void moveSymbolNext(DataRefImpl &Symb) const override { ++Symb.p; }
-
-  std::error_code printSymbolName(raw_ostream &OS,
-                                  DataRefImpl Symb) const override {
-    if (Symb.p == 1)
-      OS << "__imp_";
-    OS << StringRef(Data.getBufferStart() + sizeof(coff_import_header));
-    return std::error_code();
-  }
-
-  uint32_t getSymbolFlags(DataRefImpl Symb) const override {
-    return SymbolRef::SF_Global;
-  }
-
-  basic_symbol_iterator symbol_begin_impl() const override {
-    return BasicSymbolRef(DataRefImpl(), this);
-  }
-
-  basic_symbol_iterator symbol_end_impl() const override {
-    DataRefImpl Symb;
-    Symb.p = isCode() ? 2 : 1;
-    return BasicSymbolRef(Symb, this);
-  }
-
-private:
-  bool isCode() const {
-    auto *Import = reinterpret_cast<const coff_import_header *>(
-        Data.getBufferStart());
-    return Import->getType() == llvm::COFF::IMPORT_CODE;
-  }
-};
-} // anonymous namespace
-
 SymbolicFile::SymbolicFile(unsigned int Type, MemoryBufferRef Source)
     : Binary(Type, Source) {}
 
@@ -98,10 +54,9 @@ ErrorOr<std::unique_ptr<SymbolicFile>> SymbolicFile::createSymbolicFile(
   case sys::fs::file_magic::macho_dynamically_linked_shared_lib_stub:
   case sys::fs::file_magic::macho_dsym_companion:
   case sys::fs::file_magic::macho_kext_bundle:
+  case sys::fs::file_magic::coff_import_library:
   case sys::fs::file_magic::pecoff_executable:
     return ObjectFile::createObjectFile(Object, Type);
-  case sys::fs::file_magic::coff_import_library:
-    return std::unique_ptr<SymbolicFile>(new COFFImportFile(Object));
   case sys::fs::file_magic::elf_relocatable:
   case sys::fs::file_magic::macho_object:
   case sys::fs::file_magic::coff_object: {
-- 
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