//
// The LLVM Compiler Infrastructure
//
-// This file was developed by James M. Laskey and is distributed under the
-// University of Illinois Open Source License. See LICENSE.TXT for details.
+// This file is distributed under the University of Illinois Open Source
+// License. See LICENSE.TXT for details.
//
//===----------------------------------------------------------------------===//
//
-// This file contains support for writing Dwarf debug info into asm files. For
-// Details on the Dwarf 3 specfication see DWARF Debugging Information Format
-// V.3 reference manual http://dwarf.freestandards.org ,
+// This file contains support for writing Dwarf debug and exception info into
+// asm files. For Details on the Dwarf 3 specfication see DWARF Debugging
+// Information Format V.3 reference manual http://dwarf.freestandards.org ,
//
-// The role of the Dwarf Writer class is to extract debug information from the
+// The role of the Dwarf Writer class is to extract information from the
// MachineModuleInfo object, organize it in Dwarf form and then emit it into asm
// the current asm file using data and high level Dwarf directives.
//
#ifndef LLVM_CODEGEN_DWARFWRITER_H
#define LLVM_CODEGEN_DWARFWRITER_H
-#include <iosfwd>
+#include "llvm/Pass.h"
namespace llvm {
class AsmPrinter;
-class Dwarf;
+class DwarfDebug;
+class DwarfException;
class MachineModuleInfo;
class MachineFunction;
+class Value;
class Module;
+class GlobalVariable;
class TargetAsmInfo;
+class raw_ostream;
//===----------------------------------------------------------------------===//
// DwarfWriter - Emits Dwarf debug and exception handling directives.
//
-class DwarfWriter {
+class DwarfWriter : public ImmutablePass {
private:
- /// DM - Provides the DwarfWriter implementation.
+ /// DD - Provides the DwarfWriter debug implementation.
///
- Dwarf *DW;
+ DwarfDebug *DD;
+
+ /// DE - Provides the DwarfWriter exception implementation.
+ ///
+ DwarfException *DE;
public:
-
- DwarfWriter(std::ostream &OS, AsmPrinter *A, const TargetAsmInfo *T);
+ static char ID; // Pass identification, replacement for typeid
+
+ DwarfWriter();
virtual ~DwarfWriter();
- /// SetModuleInfo - Set machine module info when it's known that pass manager
- /// has created it. Set by the target AsmPrinter.
- void SetModuleInfo(MachineModuleInfo *MMI);
-
//===--------------------------------------------------------------------===//
// Main entry points.
//
/// BeginModule - Emit all Dwarf sections that should come prior to the
/// content.
- void BeginModule(Module *M);
+ void BeginModule(Module *M, MachineModuleInfo *MMI, raw_ostream &OS,
+ AsmPrinter *A, const TargetAsmInfo *T);
/// EndModule - Emit all Dwarf sections that should come after the content.
///
/// EndFunction - Gather and emit post-function debug information.
///
- void EndFunction();
+ void EndFunction(MachineFunction *MF);
+
+ /// ValidDebugInfo - Return true if V represents valid debug info value.
+ bool ValidDebugInfo(Value *V);
+
+ /// RecordSourceLine - Register a source line with debug info. Returns a
+ /// unique label ID used to generate a label and provide correspondence to
+ /// the source line list.
+ unsigned RecordSourceLine(unsigned Line, unsigned Col, unsigned Src);
+
+ /// RecordSource - Register a source file with debug info. Returns an source
+ /// ID.
+ unsigned RecordSource(const std::string &Dir, const std::string &File);
+
+ /// RecordRegionStart - Indicate the start of a region.
+ unsigned RecordRegionStart(GlobalVariable *V);
+
+ /// RecordRegionEnd - Indicate the end of a region.
+ unsigned RecordRegionEnd(GlobalVariable *V);
+
+ /// getRecordSourceLineCount - Count source lines.
+ unsigned getRecordSourceLineCount();
+
+ /// RecordVariable - Indicate the declaration of a local variable.
+ ///
+ void RecordVariable(GlobalVariable *GV, unsigned FrameIndex);
+
};