introduce WinCOFFObjectWriter, patch by Michael Spencer!

llvm-svn: 108103

2 files changed, 72 insertions, 0 deletions

diff --git a/llvm/lib/MC/CMakeLists.txt b/llvm/lib/MC/CMakeLists.txt
index 2b0c3529d83..fc4f3c69482 100644
--- a/llvm/lib/MC/CMakeLists.txt
+++ b/llvm/lib/MC/CMakeLists.txt
@@ -25,5 +25,6 @@ add_llvm_library(LLVMMC
   MCValue.cpp
   MachObjectWriter.cpp
   WinCOFFStreamer.cpp
+  WinCOFFObjectWriter.cpp
   TargetAsmBackend.cpp
   )
diff --git a/llvm/lib/MC/WinCOFFObjectWriter.cpp b/llvm/lib/MC/WinCOFFObjectWriter.cpp
new file mode 100644
index 00000000000..6804766b289
--- /dev/null
+++ b/llvm/lib/MC/WinCOFFObjectWriter.cpp
@@ -0,0 +1,71 @@
+//===-- llvm/MC/WinCOFFObjectWriter.cpp -------------------------*- C++ -*-===//
+//
+//                     The LLVM Compiler Infrastructure
+//
+// This file is distributed under the University of Illinois Open Source
+// License. See LICENSE.TXT for details.
+//
+//===----------------------------------------------------------------------===//
+//
+// This file contains an implementation of a Win32 COFF object file writer.
+//
+//===----------------------------------------------------------------------===//
+
+#define DEBUG_TYPE "WinCOFFObjectWriter"
+#include "llvm/MC/MCObjectWriter.h"
+#include "llvm/MC/MCValue.h"
+#include "llvm/MC/MCAssembler.h"
+#include "llvm/MC/MCAsmLayout.h"
+using namespace llvm;
+
+namespace {
+
+  class WinCOFFObjectWriter : public MCObjectWriter {
+  public:
+    WinCOFFObjectWriter(raw_ostream &OS);
+
+    // MCObjectWriter interface implementation.
+
+    void ExecutePostLayoutBinding(MCAssembler &Asm);
+
+    void RecordRelocation(const MCAssembler &Asm,
+                          const MCAsmLayout &Layout,
+                          const MCFragment *Fragment,
+                          const MCFixup &Fixup,
+                          MCValue Target,
+                          uint64_t &FixedValue);
+
+    void WriteObject(const MCAssembler &Asm, const MCAsmLayout &Layout);
+  };
+}
+
+WinCOFFObjectWriter::WinCOFFObjectWriter(raw_ostream &OS)
+                                : MCObjectWriter(OS, true) {
+}
+
+////////////////////////////////////////////////////////////////////////////////
+// MCObjectWriter interface implementations
+
+void WinCOFFObjectWriter::ExecutePostLayoutBinding(MCAssembler &Asm) {
+}
+
+void WinCOFFObjectWriter::RecordRelocation(const MCAssembler &Asm,
+                                           const MCAsmLayout &Layout,
+                                           const MCFragment *Fragment,
+                                           const MCFixup &Fixup,
+                                           MCValue Target,
+                                           uint64_t &FixedValue) {
+}
+
+void WinCOFFObjectWriter::WriteObject(const MCAssembler &Asm,
+                                      const MCAsmLayout &Layout) {
+}
+
+//------------------------------------------------------------------------------
+// WinCOFFObjectWriter factory function
+
+namespace llvm {
+  MCObjectWriter *createWinCOFFObjectWriter(raw_ostream &OS) {
+    return new WinCOFFObjectWriter(OS);
+  }
+}