1 files changed, 53 insertions, 0 deletions
diff --git a/lib/CodeGen/AsmPrinter/AsmPrinterHandler.h b/lib/CodeGen/AsmPrinter/AsmPrinterHandler.h
new file mode 100644
index 0000000000..d43a0f8f9b
--- /dev/null
+++ b/lib/CodeGen/AsmPrinter/AsmPrinterHandler.h
@@ -0,0 +1,53 @@
+//===-- lib/CodeGen/AsmPrinter/AsmPrinterHandler.h -------------*- 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 a generic interface for AsmPrinter handlers,
+// like debug and EH info emitters.
+//
+//===----------------------------------------------------------------------===//
+
+#ifndef CODEGEN_ASMPRINTER_ASMPRINTERHANDLER_H__
+#define CODEGEN_ASMPRINTER_ASMPRINTERHANDLER_H__
+
+#include "llvm/Support/DataTypes.h"
+
+namespace llvm {
+
+class MachineFunction;
+class MachineInstr;
+class MCSymbol;
+
+/// \brief Collects and handles AsmPrinter objects required to build debug
+/// or EH information.
+class AsmPrinterHandler {
+public:
+  virtual ~AsmPrinterHandler() {}
+
+  /// \brief For symbols that have a size designated (e.g. common symbols),
+  /// this tracks that size.
+  virtual void setSymbolSize(const MCSymbol *Sym, uint64_t Size) = 0;
+
+  /// \brief Emit all sections that should come after the content.
+  virtual void endModule() = 0;
+
+  /// \brief Gather pre-function debug information.
+  virtual void beginFunction(const MachineFunction *MF) = 0;
+
+  /// \brief Gather post-function debug information.
+  virtual void endFunction() = 0;
+
+  /// \brief Process beginning of an instruction.
+  virtual void beginInstruction(const MachineInstr *MI) = 0;
+
+  /// \brief Process end of an instruction.
+  virtual void endInstruction() = 0;
+};
+} // End of namespace llvm
+
+#endif