MC: Factor out an MCObjectStreamer class, which will be shared by the concrete

object file format writers.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@106140 91177308-0d34-0410-b5e6-96231b3b80d8

1 files changed, 43 insertions, 0 deletions

diff --git a/include/llvm/MC/MCObjectStreamer.h b/include/llvm/MC/MCObjectStreamer.h
new file mode 100644
index 0000000000..8a993756f4
--- /dev/null
+++ b/include/llvm/MC/MCObjectStreamer.h
@@ -0,0 +1,43 @@
+//===- MCObjectStreamer.h - MCStreamer Object File Interface ----*- C++ -*-===//
+//
+//                     The LLVM Compiler Infrastructure
+//
+// This file is distributed under the University of Illinois Open Source
+// License. See LICENSE.TXT for details.
+//
+//===----------------------------------------------------------------------===//
+
+#ifndef LLVM_MC_MCOBJECTSTREAMER_H
+#define LLVM_MC_MCOBJECTSTREAMER_H
+
+#include "llvm/MC/MCStreamer.h"
+
+namespace llvm {
+class MCAssembler;
+class MCCodeEmitter;
+class MCSectionData;
+class TargetAsmBackend;
+class raw_ostream;
+
+/// \brief Streaming object file generation interface.
+///
+/// This class provides an implementation of the MCStreamer interface which is
+/// suitable for use with the assembler backend. Specific object file formats
+/// are expected to subclass this interface to implement directives specific
+/// to that file format or custom semantics expected by the object writer
+/// implementation.
+class MCObjectStreamer : public MCStreamer {
+  MCAssembler *Assembler;
+
+protected:
+  MCObjectStreamer(MCContext &Context, TargetAsmBackend &TAB,
+                   raw_ostream &_OS, MCCodeEmitter *_Emitter);
+  ~MCObjectStreamer();
+
+public:
+  MCAssembler &getAssembler() { return *Assembler; }
+};
+
+} // end namespace llvm
+
+#endif