1 files changed, 153 insertions, 0 deletions
diff --git a/lib/CodeGen/AsmPrinter/DwarfPrinter.h b/lib/CodeGen/AsmPrinter/DwarfPrinter.h
new file mode 100644
index 0000000..6e75992
--- /dev/null
+++ b/lib/CodeGen/AsmPrinter/DwarfPrinter.h
@@ -0,0 +1,153 @@
+//===--- lib/CodeGen/DwarfPrinter.h - Dwarf Printer -------------*- C++ -*-===//
+//
+//                     The LLVM Compiler Infrastructure
+//
+// This file is distributed under the University of Illinois Open Source
+// License. See LICENSE.TXT for details.
+//
+//===----------------------------------------------------------------------===//
+//
+// Emit general DWARF directives.
+// 
+//===----------------------------------------------------------------------===//
+
+#ifndef CODEGEN_ASMPRINTER_DWARFPRINTER_H__
+#define CODEGEN_ASMPRINTER_DWARFPRINTER_H__
+
+#include "DwarfLabel.h"
+#include "llvm/CodeGen/MachineLocation.h"
+#include "llvm/Support/Compiler.h"
+#include "llvm/Support/raw_ostream.h"
+#include <vector>
+
+namespace llvm {
+  class AsmPrinter;
+  class MachineFunction;
+  class MachineModuleInfo;
+  class Module;
+  class TargetAsmInfo;
+  class TargetData;
+  class TargetRegisterInfo;
+
+  class VISIBILITY_HIDDEN Dwarf {
+  protected:
+    //===-------------------------------------------------------------==---===//
+    // Core attributes used by the DWARF printer.
+    //
+
+    /// O - Stream to .s file.
+    ///
+    raw_ostream &O;
+
+    /// Asm - Target of Dwarf emission.
+    ///
+    AsmPrinter *Asm;
+
+    /// TAI - Target asm information.
+    /// 
+    const TargetAsmInfo *TAI;
+
+    /// TD - Target data.
+    /// 
+    const TargetData *TD;
+
+    /// RI - Register Information.
+    /// 
+    const TargetRegisterInfo *RI;
+
+    /// M - Current module.
+    ///
+    Module *M;
+
+    /// MF - Current machine function.
+    ///
+    MachineFunction *MF;
+
+    /// MMI - Collected machine module information.
+    ///
+    MachineModuleInfo *MMI;
+
+    /// SubprogramCount - The running count of functions being compiled.
+    ///
+    unsigned SubprogramCount;
+
+    /// Flavor - A unique string indicating what dwarf producer this is, used to
+    /// unique labels.
+    /// 
+    const char * const Flavor;
+
+    /// SetCounter - A unique number for each '.set' directive.
+    /// 
+    unsigned SetCounter;
+
+    Dwarf(raw_ostream &OS, AsmPrinter *A, const TargetAsmInfo *T,
+          const char *flavor);
+  public:
+    //===------------------------------------------------------------------===//
+    // Accessors.
+    //
+    const AsmPrinter *getAsm() const { return Asm; }
+    MachineModuleInfo *getMMI() const { return MMI; }
+    const TargetAsmInfo *getTargetAsmInfo() const { return TAI; }
+    const TargetData *getTargetData() const { return TD; }
+
+    void PrintRelDirective(bool Force32Bit = false,
+                           bool isInSection = false) const;
+
+
+    /// PrintLabelName - Print label name in form used by Dwarf writer.
+    ///
+    void PrintLabelName(const DWLabel &Label) const {
+      PrintLabelName(Label.getTag(), Label.getNumber());
+    }
+    void PrintLabelName(const char *Tag, unsigned Number) const;
+    void PrintLabelName(const char *Tag, unsigned Number,
+                        const char *Suffix) const;
+
+    /// EmitLabel - Emit location label for internal use by Dwarf.
+    ///
+    void EmitLabel(const DWLabel &Label) const {
+      EmitLabel(Label.getTag(), Label.getNumber());
+    }
+    void EmitLabel(const char *Tag, unsigned Number) const;
+
+    /// EmitReference - Emit a reference to a label.
+    ///
+    void EmitReference(const DWLabel &Label, bool IsPCRelative = false,
+                       bool Force32Bit = false) const {
+      EmitReference(Label.getTag(), Label.getNumber(),
+                    IsPCRelative, Force32Bit);
+    }
+    void EmitReference(const char *Tag, unsigned Number,
+                       bool IsPCRelative = false,
+                       bool Force32Bit = false) const;
+    void EmitReference(const std::string &Name, bool IsPCRelative = false,
+                       bool Force32Bit = false) const;
+
+    /// EmitDifference - Emit the difference between two labels.  Some
+    /// assemblers do not behave with absolute expressions with data directives,
+    /// so there is an option (needsSet) to use an intermediary set expression.
+    void EmitDifference(const DWLabel &LabelHi, const DWLabel &LabelLo,
+                        bool IsSmall = false) {
+      EmitDifference(LabelHi.getTag(), LabelHi.getNumber(),
+                     LabelLo.getTag(), LabelLo.getNumber(),
+                     IsSmall);
+    }
+    void EmitDifference(const char *TagHi, unsigned NumberHi,
+                        const char *TagLo, unsigned NumberLo,
+                        bool IsSmall = false);
+
+    void EmitSectionOffset(const char* Label, const char* Section,
+                           unsigned LabelNumber, unsigned SectionNumber,
+                           bool IsSmall = false, bool isEH = false,
+                           bool useSet = true);
+
+    /// EmitFrameMoves - Emit frame instructions to describe the layout of the
+    /// frame.
+    void EmitFrameMoves(const char *BaseLabel, unsigned BaseLabelID,
+                        const std::vector<MachineMove> &Moves, bool isEH);
+};
+
+} // end llvm namespace
+
+#endif