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2057532679
Create debug_inlined dwarf section using these information. This info is used by gdb, at least on Darwin, to enable better experience debugging inlined functions. See DwarfWriter.cpp for more information on structure of debug_inlined section. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@68847 91177308-0d34-0410-b5e6-96231b3b80d8
123 lines
4.0 KiB
C++
123 lines
4.0 KiB
C++
//===-- llvm/CodeGen/DwarfWriter.h - Dwarf Framework ------------*- C++ -*-===//
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//
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// The LLVM Compiler Infrastructure
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//
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// This file is distributed under the University of Illinois Open Source
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// License. See LICENSE.TXT for details.
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//
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//===----------------------------------------------------------------------===//
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//
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// This file contains support for writing Dwarf debug and exception info into
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// asm files. For Details on the Dwarf 3 specfication see DWARF Debugging
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// Information Format V.3 reference manual http://dwarf.freestandards.org ,
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//
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// The role of the Dwarf Writer class is to extract information from the
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// MachineModuleInfo object, organize it in Dwarf form and then emit it into asm
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// the current asm file using data and high level Dwarf directives.
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//
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//===----------------------------------------------------------------------===//
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#ifndef LLVM_CODEGEN_DWARFWRITER_H
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#define LLVM_CODEGEN_DWARFWRITER_H
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#include "llvm/Pass.h"
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namespace llvm {
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class AsmPrinter;
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class DwarfDebug;
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class DwarfException;
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class MachineModuleInfo;
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class MachineFunction;
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class Value;
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class Module;
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class GlobalVariable;
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class TargetAsmInfo;
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class raw_ostream;
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//===----------------------------------------------------------------------===//
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// DwarfWriter - Emits Dwarf debug and exception handling directives.
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//
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class DwarfWriter : public ImmutablePass {
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private:
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/// DD - Provides the DwarfWriter debug implementation.
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///
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DwarfDebug *DD;
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/// DE - Provides the DwarfWriter exception implementation.
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///
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DwarfException *DE;
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public:
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static char ID; // Pass identification, replacement for typeid
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DwarfWriter();
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virtual ~DwarfWriter();
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//===--------------------------------------------------------------------===//
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// Main entry points.
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//
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/// BeginModule - Emit all Dwarf sections that should come prior to the
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/// content.
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void BeginModule(Module *M, MachineModuleInfo *MMI, raw_ostream &OS,
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AsmPrinter *A, const TargetAsmInfo *T);
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/// EndModule - Emit all Dwarf sections that should come after the content.
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///
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void EndModule();
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/// BeginFunction - Gather pre-function debug information. Assumes being
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/// emitted immediately after the function entry point.
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void BeginFunction(MachineFunction *MF);
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/// EndFunction - Gather and emit post-function debug information.
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///
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void EndFunction(MachineFunction *MF);
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/// ValidDebugInfo - Return true if V represents valid debug info value.
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bool ValidDebugInfo(Value *V);
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/// RecordSourceLine - Register a source line with debug info. Returns a
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/// unique label ID used to generate a label and provide correspondence to
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/// the source line list.
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unsigned RecordSourceLine(unsigned Line, unsigned Col, unsigned Src);
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/// getOrCreateSourceID - Look up the source id with the given directory and
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/// source file names. If none currently exists, create a new id and insert it
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/// in the SourceIds map. This can update DirectoryIds and SourceFileIds maps
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/// as well.
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unsigned getOrCreateSourceID(const std::string &DirName,
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const std::string &FileName);
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/// RecordRegionStart - Indicate the start of a region.
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unsigned RecordRegionStart(GlobalVariable *V);
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/// RecordRegionStart - Indicate the start of a region.
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unsigned RecordRegionStart(GlobalVariable *V, unsigned ID);
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/// RecordRegionEnd - Indicate the end of a region.
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unsigned RecordRegionEnd(GlobalVariable *V);
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/// getRecordSourceLineCount - Count source lines.
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unsigned getRecordSourceLineCount();
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/// RecordVariable - Indicate the declaration of a local variable.
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///
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void RecordVariable(GlobalVariable *GV, unsigned FrameIndex);
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/// ShouldEmitDwarfDebug - Returns true if Dwarf debugging declarations should
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/// be emitted.
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bool ShouldEmitDwarfDebug() const;
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//// RecordInlineInfo - Global variable GV is inlined at the location marked
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//// by LabelID label.
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void RecordInlineInfo(GlobalVariable *GV, unsigned LabelID);
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};
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} // end llvm namespace
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#endif
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