#include "llvm/CodeGen/DwarfWriter.h"
+#include "llvm/ADT/FoldingSet.h"
#include "llvm/ADT/StringExtras.h"
+#include "llvm/ADT/UniqueVector.h"
#include "llvm/Module.h"
#include "llvm/Type.h"
#include "llvm/CodeGen/AsmPrinter.h"
#include "llvm/CodeGen/MachineLocation.h"
#include "llvm/Support/Dwarf.h"
#include "llvm/Support/CommandLine.h"
+#include "llvm/Support/DataTypes.h"
#include "llvm/Support/Mangler.h"
+#include "llvm/Target/TargetAsmInfo.h"
#include "llvm/Target/MRegisterInfo.h"
#include "llvm/Target/TargetData.h"
#include "llvm/Target/TargetMachine.h"
#include "llvm/Target/TargetFrameInfo.h"
#include <iostream>
+#include <string>
using namespace llvm;
using namespace llvm::dwarf;
static cl::opt<bool>
DwarfVerbose("dwarf-verbose", cl::Hidden,
- cl::desc("Add comments to Dwarf directives."));
+ cl::desc("Add comments to Dwarf directives."));
namespace llvm {
+
+//===----------------------------------------------------------------------===//
+/// DWLabel - Labels are used to track locations in the assembler file.
+/// Labels appear in the form <prefix>debug_<Tag><Number>, where the tag is a
+/// category of label (Ex. location) and number is a value unique in that
+/// category.
+class DWLabel {
+public:
+ const char *Tag; // Label category tag. Should always be
+ // a staticly declared C string.
+ unsigned Number; // Unique number.
+
+ DWLabel(const char *T, unsigned N) : Tag(T), Number(N) {}
+};
//===----------------------------------------------------------------------===//
-// Forward declarations.
+/// Forward declarations.
//
class DIE;
//===----------------------------------------------------------------------===//
-// CompileUnit - This dwarf writer support class manages information associate
-// with a source file.
+/// CompileUnit - This dwarf writer support class manages information associate
+/// with a source file.
class CompileUnit {
private:
CompileUnitDesc *Desc; // Compile unit debug descriptor.
};
//===----------------------------------------------------------------------===//
-// DIEAbbrevData - Dwarf abbreviation data, describes the one attribute of a
-// Dwarf abbreviation.
+/// DIEAbbrevData - Dwarf abbreviation data, describes the one attribute of a
+/// Dwarf abbreviation.
class DIEAbbrevData {
private:
unsigned Attribute; // Dwarf attribute code.
// Accessors.
unsigned getAttribute() const { return Attribute; }
unsigned getForm() const { return Form; }
-
- /// operator== - Used by DIEAbbrev to locate entry.
- ///
- bool operator==(const DIEAbbrevData &DAD) const {
- return Attribute == DAD.Attribute && Form == DAD.Form;
- }
- /// operator!= - Used by DIEAbbrev to locate entry.
- ///
- bool operator!=(const DIEAbbrevData &DAD) const {
- return Attribute != DAD.Attribute || Form != DAD.Form;
- }
-
- /// operator< - Used by DIEAbbrev to locate entry.
+ /// Profile - Used to gather unique data for the abbreviation folding set.
///
- bool operator<(const DIEAbbrevData &DAD) const {
- return Attribute < DAD.Attribute ||
- (Attribute == DAD.Attribute && Form < DAD.Form);
+ void Profile(FoldingSetNodeID &ID) {
+ ID.AddInteger(Attribute);
+ ID.AddInteger(Form);
}
};
//===----------------------------------------------------------------------===//
-// DIEAbbrev - Dwarf abbreviation, describes the organization of a debug
-// information object.
-class DIEAbbrev {
+/// DIEAbbrev - Dwarf abbreviation, describes the organization of a debug
+/// information object.
+class DIEAbbrev : public FoldingSetNode {
private:
+ unsigned Number; // Unique number for abbreviation.
unsigned Tag; // Dwarf tag code.
unsigned ChildrenFlag; // Dwarf children flag.
std::vector<DIEAbbrevData> Data; // Raw data bytes for abbreviation.
public:
DIEAbbrev(unsigned T, unsigned C)
- : Tag(T)
+ : Number(0)
+ , Tag(T)
, ChildrenFlag(C)
, Data()
{}
~DIEAbbrev() {}
// Accessors.
+ unsigned getNumber() const { return Number; }
unsigned getTag() const { return Tag; }
unsigned getChildrenFlag() const { return ChildrenFlag; }
const std::vector<DIEAbbrevData> &getData() const { return Data; }
+ void setNumber(unsigned N) { Number = N; }
void setChildrenFlag(unsigned CF) { ChildrenFlag = CF; }
- /// operator== - Used by UniqueVector to locate entry.
- ///
- bool operator==(const DIEAbbrev &DA) const;
-
- /// operator< - Used by UniqueVector to locate entry.
- ///
- bool operator<(const DIEAbbrev &DA) const;
-
/// AddAttribute - Adds another set of attribute information to the
/// abbreviation.
void AddAttribute(unsigned Attribute, unsigned Form) {
Data.insert(Data.begin(), DIEAbbrevData(Attribute, Form));
}
+ /// Profile - Used to gather unique data for the abbreviation folding set.
+ ///
+ void Profile(FoldingSetNodeID &ID) {
+ ID.AddInteger(Tag);
+ ID.AddInteger(ChildrenFlag);
+
+ // For each attribute description.
+ for (unsigned i = 0, N = Data.size(); i < N; ++i)
+ Data[i].Profile(ID);
+ }
+
/// Emit - Print the abbreviation using the specified Dwarf writer.
///
- void Emit(const DwarfWriter &DW) const;
+ void Emit(const Dwarf &DW) const;
#ifndef NDEBUG
void print(std::ostream &O);
};
//===----------------------------------------------------------------------===//
-// DIEValue - A debug information entry value.
+/// DIEValue - A debug information entry value.
//
class DIEValue {
public:
/// EmitValue - Emit value via the Dwarf writer.
///
- virtual void EmitValue(const DwarfWriter &DW, unsigned Form) const = 0;
+ virtual void EmitValue(const Dwarf &DW, unsigned Form) const = 0;
/// SizeOf - Return the size of a value in bytes.
///
- virtual unsigned SizeOf(const DwarfWriter &DW, unsigned Form) const = 0;
+ virtual unsigned SizeOf(const Dwarf &DW, unsigned Form) const = 0;
};
//===----------------------------------------------------------------------===//
-// DWInteger - An integer value DIE.
-//
+/// DWInteger - An integer value DIE.
+///
class DIEInteger : public DIEValue {
private:
uint64_t Integer;
/// EmitValue - Emit integer of appropriate size.
///
- virtual void EmitValue(const DwarfWriter &DW, unsigned Form) const;
+ virtual void EmitValue(const Dwarf &DW, unsigned Form) const;
/// SizeOf - Determine size of integer value in bytes.
///
- virtual unsigned SizeOf(const DwarfWriter &DW, unsigned Form) const;
+ virtual unsigned SizeOf(const Dwarf &DW, unsigned Form) const;
};
//===----------------------------------------------------------------------===//
-// DIEString - A string value DIE.
-//
+/// DIEString - A string value DIE.
+///
struct DIEString : public DIEValue {
const std::string String;
/// EmitValue - Emit string value.
///
- virtual void EmitValue(const DwarfWriter &DW, unsigned Form) const;
+ virtual void EmitValue(const Dwarf &DW, unsigned Form) const;
/// SizeOf - Determine size of string value in bytes.
///
- virtual unsigned SizeOf(const DwarfWriter &DW, unsigned Form) const;
+ virtual unsigned SizeOf(const Dwarf &DW, unsigned Form) const;
};
//===----------------------------------------------------------------------===//
-// DIEDwarfLabel - A Dwarf internal label expression DIE.
+/// DIEDwarfLabel - A Dwarf internal label expression DIE.
//
struct DIEDwarfLabel : public DIEValue {
const DWLabel Label;
/// EmitValue - Emit label value.
///
- virtual void EmitValue(const DwarfWriter &DW, unsigned Form) const;
+ virtual void EmitValue(const Dwarf &DW, unsigned Form) const;
/// SizeOf - Determine size of label value in bytes.
///
- virtual unsigned SizeOf(const DwarfWriter &DW, unsigned Form) const;
+ virtual unsigned SizeOf(const Dwarf &DW, unsigned Form) const;
};
//===----------------------------------------------------------------------===//
-// DIEObjectLabel - A label to an object in code or data.
+/// DIEObjectLabel - A label to an object in code or data.
//
struct DIEObjectLabel : public DIEValue {
const std::string Label;
/// EmitValue - Emit label value.
///
- virtual void EmitValue(const DwarfWriter &DW, unsigned Form) const;
+ virtual void EmitValue(const Dwarf &DW, unsigned Form) const;
/// SizeOf - Determine size of label value in bytes.
///
- virtual unsigned SizeOf(const DwarfWriter &DW, unsigned Form) const;
+ virtual unsigned SizeOf(const Dwarf &DW, unsigned Form) const;
};
//===----------------------------------------------------------------------===//
-// DIEDelta - A simple label difference DIE.
-//
+/// DIEDelta - A simple label difference DIE.
+///
struct DIEDelta : public DIEValue {
const DWLabel LabelHi;
const DWLabel LabelLo;
/// EmitValue - Emit delta value.
///
- virtual void EmitValue(const DwarfWriter &DW, unsigned Form) const;
+ virtual void EmitValue(const Dwarf &DW, unsigned Form) const;
/// SizeOf - Determine size of delta value in bytes.
///
- virtual unsigned SizeOf(const DwarfWriter &DW, unsigned Form) const;
+ virtual unsigned SizeOf(const Dwarf &DW, unsigned Form) const;
};
//===----------------------------------------------------------------------===//
-// DIEntry - A pointer to a debug information entry.
-//
+/// DIEntry - A pointer to a debug information entry.
+///
struct DIEntry : public DIEValue {
DIE *Entry;
/// EmitValue - Emit debug information entry offset.
///
- virtual void EmitValue(const DwarfWriter &DW, unsigned Form) const;
+ virtual void EmitValue(const Dwarf &DW, unsigned Form) const;
/// SizeOf - Determine size of debug information entry in bytes.
///
- virtual unsigned SizeOf(const DwarfWriter &DW, unsigned Form) const;
+ virtual unsigned SizeOf(const Dwarf &DW, unsigned Form) const;
};
//===----------------------------------------------------------------------===//
-// DIEBlock - A block of values. Primarily used for location expressions.
+/// DIEBlock - A block of values. Primarily used for location expressions.
//
struct DIEBlock : public DIEValue {
unsigned Size; // Size in bytes excluding size header.
/// ComputeSize - calculate the size of the block.
///
- unsigned ComputeSize(DwarfWriter &DW);
+ unsigned ComputeSize(Dwarf &DW);
/// BestForm - Choose the best form for data.
///
/// EmitValue - Emit block data.
///
- virtual void EmitValue(const DwarfWriter &DW, unsigned Form) const;
+ virtual void EmitValue(const Dwarf &DW, unsigned Form) const;
/// SizeOf - Determine size of block data in bytes.
///
- virtual unsigned SizeOf(const DwarfWriter &DW, unsigned Form) const;
+ virtual unsigned SizeOf(const Dwarf &DW, unsigned Form) const;
/// AddUInt - Add an unsigned integer value.
///
};
//===----------------------------------------------------------------------===//
-// DIE - A structured debug information entry. Has an abbreviation which
-// describes it's organization.
+/// DIE - A structured debug information entry. Has an abbreviation which
+/// describes it's organization.
class DIE {
private:
- DIEAbbrev *Abbrev; // Temporary buffer for abbreviation.
- unsigned AbbrevID; // Decribing abbreviation ID.
+ DIEAbbrev Abbrev; // Buffer for constructing abbreviation.
unsigned Offset; // Offset in debug info section.
unsigned Size; // Size of instance + children.
std::vector<DIE *> Children; // Children DIEs.
~DIE();
// Accessors.
- unsigned getAbbrevID() const { return AbbrevID; }
+ unsigned getAbbrevNumber() const {
+ return Abbrev.getNumber();
+ }
unsigned getOffset() const { return Offset; }
unsigned getSize() const { return Size; }
const std::vector<DIE *> &getChildren() const { return Children; }
/// Complete - Indicate that all attributes have been added and
/// ready to get an abbreviation ID.
///
- void Complete(DwarfWriter &DW);
+ void Complete(Dwarf &DW);
/// AddChild - Add a child to the DIE.
void AddChild(DIE *Child);
};
+//===----------------------------------------------------------------------===//
+/// Dwarf - Emits Dwarf debug and exception handling directives.
+//
+class Dwarf {
+
+private:
+
+ //===--------------------------------------------------------------------===//
+ // Core attributes used by the Dwarf writer.
+ //
+
+ //
+ /// O - Stream to .s file.
+ ///
+ std::ostream &O;
+
+ /// Asm - Target of Dwarf emission.
+ ///
+ AsmPrinter *Asm;
+
+ /// TAI - Target Asm Printer.
+ const TargetAsmInfo *TAI;
+
+ /// TD - Target data.
+ const TargetData *TD;
+
+ /// RI - Register Information.
+ const MRegisterInfo *RI;
+
+ /// M - Current module.
+ ///
+ Module *M;
+
+ /// MF - Current machine function.
+ ///
+ MachineFunction *MF;
+
+ /// DebugInfo - Collected debug information.
+ ///
+ MachineDebugInfo *DebugInfo;
+
+ /// didInitial - Flag to indicate if initial emission has been done.
+ ///
+ bool didInitial;
+
+ /// shouldEmit - Flag to indicate if debug information should be emitted.
+ ///
+ bool shouldEmit;
+
+ /// SubprogramCount - The running count of functions being compiled.
+ ///
+ unsigned SubprogramCount;
+
+ //===--------------------------------------------------------------------===//
+ // Attributes used to construct specific Dwarf sections.
+ //
+
+ /// CompileUnits - All the compile units involved in this build. The index
+ /// of each entry in this vector corresponds to the sources in DebugInfo.
+ std::vector<CompileUnit *> CompileUnits;
+
+ /// AbbreviationsSet - Used to uniquely define the abbreviations.
+ ///
+ FoldingSet<DIEAbbrev> AbbreviationsSet;
+
+ /// Abbreviations - A list of all the unique abbreviations in use.
+ ///
+ std::vector<DIEAbbrev *> Abbreviations;
+
+ /// StringPool - A UniqueVector of strings used by indirect references.
+ /// UnitMap - Map debug information descriptor to compile unit.
+ ///
+ UniqueVector<std::string> StringPool;
+
+ /// UnitMap - Map debug information descriptor to compile unit.
+ ///
+ std::map<DebugInfoDesc *, CompileUnit *> DescToUnitMap;
+
+ /// DescToDieMap - Tracks the mapping of top level debug informaton
+ /// descriptors to debug information entries.
+ std::map<DebugInfoDesc *, DIE *> DescToDieMap;
+
+ /// SectionMap - Provides a unique id per text section.
+ ///
+ UniqueVector<std::string> SectionMap;
+
+ /// SectionSourceLines - Tracks line numbers per text section.
+ ///
+ std::vector<std::vector<SourceLineInfo> > SectionSourceLines;
+
+
+public:
+
+ //===--------------------------------------------------------------------===//
+ // Emission and print routines
+ //
+
+ /// PrintHex - Print a value as a hexidecimal value.
+ ///
+ void PrintHex(int Value) const;
+
+ /// EOL - Print a newline character to asm stream. If a comment is present
+ /// then it will be printed first. Comments should not contain '\n'.
+ void EOL(const std::string &Comment) const;
+
+ /// EmitAlign - Print a align directive.
+ ///
+ void EmitAlign(unsigned Alignment) const;
+
+ /// EmitULEB128Bytes - Emit an assembler byte data directive to compose an
+ /// unsigned leb128 value.
+ void EmitULEB128Bytes(unsigned Value) const;
+
+ /// EmitSLEB128Bytes - print an assembler byte data directive to compose a
+ /// signed leb128 value.
+ void EmitSLEB128Bytes(int Value) const;
+
+ /// PrintULEB128 - Print a series of hexidecimal values (separated by
+ /// commas) representing an unsigned leb128 value.
+ void PrintULEB128(unsigned Value) const;
+
+ /// SizeULEB128 - Compute the number of bytes required for an unsigned
+ /// leb128 value.
+ static unsigned SizeULEB128(unsigned Value);
+
+ /// PrintSLEB128 - Print a series of hexidecimal values (separated by
+ /// commas) representing a signed leb128 value.
+ void PrintSLEB128(int Value) const;
+
+ /// SizeSLEB128 - Compute the number of bytes required for a signed leb128
+ /// value.
+ static unsigned SizeSLEB128(int Value);
+
+ /// EmitInt8 - Emit a byte directive and value.
+ ///
+ void EmitInt8(int Value) const;
+
+ /// EmitInt16 - Emit a short directive and value.
+ ///
+ void EmitInt16(int Value) const;
+
+ /// EmitInt32 - Emit a long directive and value.
+ ///
+ void EmitInt32(int Value) const;
+
+ /// EmitInt64 - Emit a long long directive and value.
+ ///
+ void EmitInt64(uint64_t Value) const;
+
+ /// EmitString - Emit a string with quotes and a null terminator.
+ /// Special characters are emitted properly.
+ /// \literal (Eg. '\t') \endliteral
+ void EmitString(const std::string &String) const;
+
+ /// PrintLabelName - Print label name in form used by Dwarf writer.
+ ///
+ void PrintLabelName(DWLabel Label) const {
+ PrintLabelName(Label.Tag, Label.Number);
+ }
+ void PrintLabelName(const char *Tag, unsigned Number) const;
+
+ /// EmitLabel - Emit location label for internal use by Dwarf.
+ ///
+ void EmitLabel(DWLabel Label) const {
+ EmitLabel(Label.Tag, Label.Number);
+ }
+ void EmitLabel(const char *Tag, unsigned Number) const;
+
+ /// EmitReference - Emit a reference to a label.
+ ///
+ void EmitReference(DWLabel Label) const {
+ EmitReference(Label.Tag, Label.Number);
+ }
+ void EmitReference(const char *Tag, unsigned Number) const;
+ void EmitReference(const std::string &Name) 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(DWLabel LabelHi, DWLabel LabelLo) const {
+ EmitDifference(LabelHi.Tag, LabelHi.Number, LabelLo.Tag, LabelLo.Number);
+ }
+ void EmitDifference(const char *TagHi, unsigned NumberHi,
+ const char *TagLo, unsigned NumberLo) const;
+
+ /// AssignAbbrevNumber - Define a unique number for the abbreviation.
+ ///
+ void AssignAbbrevNumber(DIEAbbrev *Abbrev);
+
+ /// NewString - Add a string to the constant pool and returns a label.
+ ///
+ DWLabel NewString(const std::string &String);
+
+ /// getDieMapSlotFor - Returns the debug information entry map slot for the
+ /// specified debug descriptor.
+ DIE *&getDieMapSlotFor(DebugInfoDesc *DD);
+
+private:
+
+ /// AddSourceLine - Add location information to specified debug information
+ /// entry.
+ void AddSourceLine(DIE *Die, CompileUnitDesc *File, unsigned Line);
+
+ /// AddAddress - Add an address attribute to a die based on the location
+ /// provided.
+ void AddAddress(DIE *Die, unsigned Attribute,
+ const MachineLocation &Location);
+
+ /// NewType - Create a new type DIE.
+ ///
+ DIE *NewType(DIE *Context, TypeDesc *TyDesc, CompileUnit *Unit);
+
+ /// NewCompileUnit - Create new compile unit and it's die.
+ ///
+ CompileUnit *NewCompileUnit(CompileUnitDesc *UnitDesc, unsigned ID);
+
+ /// FindCompileUnit - Get the compile unit for the given descriptor.
+ ///
+ CompileUnit *FindCompileUnit(CompileUnitDesc *UnitDesc);
+
+ /// NewGlobalVariable - Make a new global variable DIE.
+ ///
+ DIE *NewGlobalVariable(GlobalVariableDesc *GVD);
+
+ /// NewSubprogram - Add a new subprogram DIE.
+ ///
+ DIE *NewSubprogram(SubprogramDesc *SPD);
+
+ /// NewScopeVariable - Create a new scope variable.
+ ///
+ DIE *NewScopeVariable(DebugVariable *DV, CompileUnit *Unit);
+
+ /// ConstructScope - Construct the components of a scope.
+ ///
+ void ConstructScope(DebugScope *ParentScope, DIE *ParentDie,
+ CompileUnit *Unit);
+
+ /// ConstructRootScope - Construct the scope for the subprogram.
+ ///
+ void ConstructRootScope(DebugScope *RootScope);
+
+ /// EmitInitial - Emit initial Dwarf declarations.
+ ///
+ void EmitInitial();
+
+ /// EmitDIE - Recusively Emits a debug information entry.
+ ///
+ void EmitDIE(DIE *Die) const;
+
+ /// SizeAndOffsetDie - Compute the size and offset of a DIE.
+ ///
+ unsigned SizeAndOffsetDie(DIE *Die, unsigned Offset, bool Last);
+
+ /// SizeAndOffsets - Compute the size and offset of all the DIEs.
+ ///
+ void SizeAndOffsets();
+
+ /// EmitFrameMoves - Emit frame instructions to describe the layout of the
+ /// frame.
+ void EmitFrameMoves(const char *BaseLabel, unsigned BaseLabelID,
+ std::vector<MachineMove *> &Moves);
+
+ /// EmitDebugInfo - Emit the debug info section.
+ ///
+ void EmitDebugInfo() const;
+
+ /// EmitAbbreviations - Emit the abbreviation section.
+ ///
+ void EmitAbbreviations() const;
+
+ /// EmitDebugLines - Emit source line information.
+ ///
+ void EmitDebugLines() const;
+
+ /// EmitInitialDebugFrame - Emit common frame info into a debug frame section.
+ ///
+ void EmitInitialDebugFrame();
+
+ /// EmitFunctionDebugFrame - Emit per function frame info into a debug frame
+ /// section.
+ void EmitFunctionDebugFrame();
+
+ /// EmitDebugPubNames - Emit info into a debug pubnames section.
+ ///
+ void EmitDebugPubNames();
+
+ /// EmitDebugStr - Emit info into a debug str section.
+ ///
+ void EmitDebugStr();
+
+ /// EmitDebugLoc - Emit info into a debug loc section.
+ ///
+ void EmitDebugLoc();
+
+ /// EmitDebugARanges - Emit info into a debug aranges section.
+ ///
+ void EmitDebugARanges();
+
+ /// EmitDebugRanges - Emit info into a debug ranges section.
+ ///
+ void EmitDebugRanges();
+
+ /// EmitDebugMacInfo - Emit info into a debug macinfo section.
+ ///
+ void EmitDebugMacInfo();
+
+ /// ConstructCompileUnitDIEs - Create a compile unit DIE for each source and
+ /// header file.
+ void ConstructCompileUnitDIEs();
+
+ /// ConstructGlobalDIEs - Create DIEs for each of the externally visible
+ /// global variables.
+ void ConstructGlobalDIEs();
+
+ /// ConstructSubprogramDIEs - Create DIEs for each of the externally visible
+ /// subprograms.
+ void ConstructSubprogramDIEs();
+
+ /// ShouldEmitDwarf - Returns true if Dwarf declarations should be made.
+ ///
+ bool ShouldEmitDwarf() const { return shouldEmit; }
+
+public:
+
+ Dwarf(std::ostream &OS, AsmPrinter *A, const TargetAsmInfo *T);
+ virtual ~Dwarf();
+
+ // Accessors.
+ //
+ const TargetAsmInfo *getTargetAsmInfo() const { return TAI; }
+
+ /// SetDebugInfo - Set DebugInfo when it's known that pass manager has
+ /// created it. Set by the target AsmPrinter.
+ void SetDebugInfo(MachineDebugInfo *DI);
+
+ //===--------------------------------------------------------------------===//
+ // Main entry points.
+ //
+
+ /// BeginModule - Emit all Dwarf sections that should come prior to the
+ /// content.
+ void BeginModule(Module *M);
+
+ /// EndModule - Emit all Dwarf sections that should come after the content.
+ ///
+ void EndModule();
+
+ /// BeginFunction - Gather pre-function debug information. Assumes being
+ /// emitted immediately after the function entry point.
+ void BeginFunction(MachineFunction *MF);
+
+ /// EndFunction - Gather and emit post-function debug information.
+ ///
+ void EndFunction();
+};
+
} // End of namespace llvm
//===----------------------------------------------------------------------===//
//===----------------------------------------------------------------------===//
-/// operator== - Used by UniqueVector to locate entry.
-///
-bool DIEAbbrev::operator==(const DIEAbbrev &DA) const {
- if (Tag != DA.Tag) return false;
- if (ChildrenFlag != DA.ChildrenFlag) return false;
- if (Data.size() != DA.Data.size()) return false;
-
- for (unsigned i = 0, N = Data.size(); i < N; ++i) {
- if (Data[i] != DA.Data[i]) return false;
- }
-
- return true;
-}
-
-/// operator< - Used by UniqueVector to locate entry.
-///
-bool DIEAbbrev::operator<(const DIEAbbrev &DA) const {
- if (Tag != DA.Tag) return Tag < DA.Tag;
- if (ChildrenFlag != DA.ChildrenFlag) return ChildrenFlag < DA.ChildrenFlag;
- if (Data.size() != DA.Data.size()) return Data.size() < DA.Data.size();
-
- for (unsigned i = 0, N = Data.size(); i < N; ++i) {
- if (Data[i] != DA.Data[i]) return Data[i] < DA.Data[i];
- }
-
- return false;
-}
-
/// Emit - Print the abbreviation using the specified Dwarf writer.
///
-void DIEAbbrev::Emit(const DwarfWriter &DW) const {
+void DIEAbbrev::Emit(const Dwarf &DW) const {
// Emit its Dwarf tag type.
DW.EmitULEB128Bytes(Tag);
DW.EOL(TagString(Tag));
}
#ifndef NDEBUG
- void DIEAbbrev::print(std::ostream &O) {
- O << "Abbreviation @"
- << std::hex << (intptr_t)this << std::dec
+void DIEAbbrev::print(std::ostream &O) {
+ O << "Abbreviation @"
+ << std::hex << (intptr_t)this << std::dec
+ << " "
+ << TagString(Tag)
+ << " "
+ << ChildrenString(ChildrenFlag)
+ << "\n";
+
+ for (unsigned i = 0, N = Data.size(); i < N; ++i) {
+ O << " "
+ << AttributeString(Data[i].getAttribute())
<< " "
- << TagString(Tag)
- << " "
- << ChildrenString(ChildrenFlag)
+ << FormEncodingString(Data[i].getForm())
<< "\n";
-
- for (unsigned i = 0, N = Data.size(); i < N; ++i) {
- O << " "
- << AttributeString(Data[i].getAttribute())
- << " "
- << FormEncodingString(Data[i].getForm())
- << "\n";
- }
}
- void DIEAbbrev::dump() { print(std::cerr); }
+}
+void DIEAbbrev::dump() { print(std::cerr); }
#endif
//===----------------------------------------------------------------------===//
/// EmitValue - Emit integer of appropriate size.
///
-void DIEInteger::EmitValue(const DwarfWriter &DW, unsigned Form) const {
+void DIEInteger::EmitValue(const Dwarf &DW, unsigned Form) const {
switch (Form) {
case DW_FORM_flag: // Fall thru
case DW_FORM_ref1: // Fall thru
/// SizeOf - Determine size of integer value in bytes.
///
-unsigned DIEInteger::SizeOf(const DwarfWriter &DW, unsigned Form) const {
+unsigned DIEInteger::SizeOf(const Dwarf &DW, unsigned Form) const {
switch (Form) {
case DW_FORM_flag: // Fall thru
case DW_FORM_ref1: // Fall thru
/// EmitValue - Emit string value.
///
-void DIEString::EmitValue(const DwarfWriter &DW, unsigned Form) const {
+void DIEString::EmitValue(const Dwarf &DW, unsigned Form) const {
DW.EmitString(String);
}
/// SizeOf - Determine size of string value in bytes.
///
-unsigned DIEString::SizeOf(const DwarfWriter &DW, unsigned Form) const {
+unsigned DIEString::SizeOf(const Dwarf &DW, unsigned Form) const {
return String.size() + sizeof(char); // sizeof('\0');
}
/// EmitValue - Emit label value.
///
-void DIEDwarfLabel::EmitValue(const DwarfWriter &DW, unsigned Form) const {
+void DIEDwarfLabel::EmitValue(const Dwarf &DW, unsigned Form) const {
DW.EmitReference(Label);
}
/// SizeOf - Determine size of label value in bytes.
///
-unsigned DIEDwarfLabel::SizeOf(const DwarfWriter &DW, unsigned Form) const {
- return DW.getAddressSize();
+unsigned DIEDwarfLabel::SizeOf(const Dwarf &DW, unsigned Form) const {
+ return DW.getTargetAsmInfo()->getAddressSize();
}
//===----------------------------------------------------------------------===//
/// EmitValue - Emit label value.
///
-void DIEObjectLabel::EmitValue(const DwarfWriter &DW, unsigned Form) const {
+void DIEObjectLabel::EmitValue(const Dwarf &DW, unsigned Form) const {
DW.EmitReference(Label);
}
/// SizeOf - Determine size of label value in bytes.
///
-unsigned DIEObjectLabel::SizeOf(const DwarfWriter &DW, unsigned Form) const {
- return DW.getAddressSize();
+unsigned DIEObjectLabel::SizeOf(const Dwarf &DW, unsigned Form) const {
+ return DW.getTargetAsmInfo()->getAddressSize();
}
//===----------------------------------------------------------------------===//
/// EmitValue - Emit delta value.
///
-void DIEDelta::EmitValue(const DwarfWriter &DW, unsigned Form) const {
+void DIEDelta::EmitValue(const Dwarf &DW, unsigned Form) const {
DW.EmitDifference(LabelHi, LabelLo);
}
/// SizeOf - Determine size of delta value in bytes.
///
-unsigned DIEDelta::SizeOf(const DwarfWriter &DW, unsigned Form) const {
- return DW.getAddressSize();
+unsigned DIEDelta::SizeOf(const Dwarf &DW, unsigned Form) const {
+ return DW.getTargetAsmInfo()->getAddressSize();
}
//===----------------------------------------------------------------------===//
/// EmitValue - Emit debug information entry offset.
///
-void DIEntry::EmitValue(const DwarfWriter &DW, unsigned Form) const {
+void DIEntry::EmitValue(const Dwarf &DW, unsigned Form) const {
DW.EmitInt32(Entry->getOffset());
}
/// SizeOf - Determine size of debug information entry value in bytes.
///
-unsigned DIEntry::SizeOf(const DwarfWriter &DW, unsigned Form) const {
+unsigned DIEntry::SizeOf(const Dwarf &DW, unsigned Form) const {
return sizeof(int32_t);
}
/// ComputeSize - calculate the size of the block.
///
-unsigned DIEBlock::ComputeSize(DwarfWriter &DW) {
+unsigned DIEBlock::ComputeSize(Dwarf &DW) {
Size = 0;
for (unsigned i = 0, N = Values.size(); i < N; ++i) {
Size += Values[i]->SizeOf(DW, Forms[i]);
/// EmitValue - Emit block data.
///
-void DIEBlock::EmitValue(const DwarfWriter &DW, unsigned Form) const {
+void DIEBlock::EmitValue(const Dwarf &DW, unsigned Form) const {
switch (Form) {
case DW_FORM_block1: DW.EmitInt8(Size); break;
case DW_FORM_block2: DW.EmitInt16(Size); break;
/// SizeOf - Determine size of block data in bytes.
///
-unsigned DIEBlock::SizeOf(const DwarfWriter &DW, unsigned Form) const {
+unsigned DIEBlock::SizeOf(const Dwarf &DW, unsigned Form) const {
switch (Form) {
case DW_FORM_block1: return Size + sizeof(int8_t);
case DW_FORM_block2: return Size + sizeof(int16_t);
//===----------------------------------------------------------------------===//
DIE::DIE(unsigned Tag)
-: Abbrev(new DIEAbbrev(Tag, DW_CHILDREN_no))
-, AbbrevID(0)
+: Abbrev(Tag, DW_CHILDREN_no)
, Offset(0)
, Size(0)
, Children()
{}
DIE::~DIE() {
- if (Abbrev) delete Abbrev;
-
for (unsigned i = 0, N = Children.size(); i < N; ++i) {
delete Children[i];
}
void DIE::AddSiblingOffset() {
DIEInteger *DI = new DIEInteger(0);
Values.insert(Values.begin(), DI);
- Abbrev->AddFirstAttribute(DW_AT_sibling, DW_FORM_ref4);
+ Abbrev.AddFirstAttribute(DW_AT_sibling, DW_FORM_ref4);
}
/// AddUInt - Add an unsigned integer attribute data and value.
DIEInteger *DI = new DIEInteger(Integer);
Values.push_back(DI);
if (!Form) Form = DI->BestForm(false);
- Abbrev->AddAttribute(Attribute, Form);
+ Abbrev.AddAttribute(Attribute, Form);
}
/// AddSInt - Add an signed integer attribute data and value.
DIEInteger *DI = new DIEInteger(Integer);
Values.push_back(DI);
if (!Form) Form = DI->BestForm(true);
- Abbrev->AddAttribute(Attribute, Form);
+ Abbrev.AddAttribute(Attribute, Form);
}
/// AddString - Add a std::string attribute data and value.
void DIE::AddString(unsigned Attribute, unsigned Form,
const std::string &String) {
Values.push_back(new DIEString(String));
- Abbrev->AddAttribute(Attribute, Form);
+ Abbrev.AddAttribute(Attribute, Form);
}
/// AddLabel - Add a Dwarf label attribute data and value.
void DIE::AddLabel(unsigned Attribute, unsigned Form,
const DWLabel &Label) {
Values.push_back(new DIEDwarfLabel(Label));
- Abbrev->AddAttribute(Attribute, Form);
+ Abbrev.AddAttribute(Attribute, Form);
}
/// AddObjectLabel - Add an non-Dwarf label attribute data and value.
void DIE::AddObjectLabel(unsigned Attribute, unsigned Form,
const std::string &Label) {
Values.push_back(new DIEObjectLabel(Label));
- Abbrev->AddAttribute(Attribute, Form);
+ Abbrev.AddAttribute(Attribute, Form);
}
/// AddDelta - Add a label delta attribute data and value.
void DIE::AddDelta(unsigned Attribute, unsigned Form,
const DWLabel &Hi, const DWLabel &Lo) {
Values.push_back(new DIEDelta(Hi, Lo));
- Abbrev->AddAttribute(Attribute, Form);
+ Abbrev.AddAttribute(Attribute, Form);
}
/// AddDIEntry - Add a DIE attribute data and value.
///
void DIE::AddDIEntry(unsigned Attribute, unsigned Form, DIE *Entry) {
Values.push_back(new DIEntry(Entry));
- Abbrev->AddAttribute(Attribute, Form);
+ Abbrev.AddAttribute(Attribute, Form);
}
/// AddBlock - Add block data.
assert(Block->Size && "Block size has not been computed");
Values.push_back(Block);
if (!Form) Form = Block->BestForm();
- Abbrev->AddAttribute(Attribute, Form);
+ Abbrev.AddAttribute(Attribute, Form);
}
/// Complete - Indicate that all attributes have been added and ready to get an
/// abbreviation ID.
-void DIE::Complete(DwarfWriter &DW) {
- AbbrevID = DW.NewAbbreviation(Abbrev);
- delete Abbrev;
- Abbrev = NULL;
+void DIE::Complete(Dwarf &DW) {
+ DW.AssignAbbrevNumber(&Abbrev);
}
/// AddChild - Add a child to the DIE.
///
void DIE::AddChild(DIE *Child) {
- assert(Abbrev && "Adding children without an abbreviation");
- Abbrev->setChildrenFlag(DW_CHILDREN_yes);
+ Abbrev.setChildrenFlag(DW_CHILDREN_yes);
Children.push_back(Child);
}
//===----------------------------------------------------------------------===//
-/// DWContext
+/// Dwarf
//===----------------------------------------------------------------------===//
/// PrintHex - Print a value as a hexidecimal value.
///
-void DwarfWriter::PrintHex(int Value) const {
+void Dwarf::PrintHex(int Value) const {
O << "0x" << std::hex << Value << std::dec;
}
/// EOL - Print a newline character to asm stream. If a comment is present
/// then it will be printed first. Comments should not contain '\n'.
-void DwarfWriter::EOL(const std::string &Comment) const {
+void Dwarf::EOL(const std::string &Comment) const {
if (DwarfVerbose && !Comment.empty()) {
O << "\t"
- << Asm->CommentString
+ << TAI->getCommentString()
<< " "
<< Comment;
}
/// EmitAlign - Print a align directive.
///
-void DwarfWriter::EmitAlign(unsigned Alignment) const {
- O << Asm->AlignDirective << Alignment << "\n";
+void Dwarf::EmitAlign(unsigned Alignment) const {
+ O << TAI->getAlignDirective() << Alignment << "\n";
}
/// EmitULEB128Bytes - Emit an assembler byte data directive to compose an
/// unsigned leb128 value.
-void DwarfWriter::EmitULEB128Bytes(unsigned Value) const {
- if (hasLEB128) {
+void Dwarf::EmitULEB128Bytes(unsigned Value) const {
+ if (TAI->hasLEB128()) {
O << "\t.uleb128\t"
<< Value;
} else {
- O << Asm->Data8bitsDirective;
+ O << TAI->getData8bitsDirective();
PrintULEB128(Value);
}
}
/// EmitSLEB128Bytes - Emit an assembler byte data directive to compose a
/// signed leb128 value.
-void DwarfWriter::EmitSLEB128Bytes(int Value) const {
- if (hasLEB128) {
+void Dwarf::EmitSLEB128Bytes(int Value) const {
+ if (TAI->hasLEB128()) {
O << "\t.sleb128\t"
<< Value;
} else {
- O << Asm->Data8bitsDirective;
+ O << TAI->getData8bitsDirective();
PrintSLEB128(Value);
}
}
/// PrintULEB128 - Print a series of hexidecimal values (separated by commas)
/// representing an unsigned leb128 value.
-void DwarfWriter::PrintULEB128(unsigned Value) const {
+void Dwarf::PrintULEB128(unsigned Value) const {
do {
unsigned Byte = Value & 0x7f;
Value >>= 7;
/// SizeULEB128 - Compute the number of bytes required for an unsigned leb128
/// value.
-unsigned DwarfWriter::SizeULEB128(unsigned Value) {
+unsigned Dwarf::SizeULEB128(unsigned Value) {
unsigned Size = 0;
do {
Value >>= 7;
/// PrintSLEB128 - Print a series of hexidecimal values (separated by commas)
/// representing a signed leb128 value.
-void DwarfWriter::PrintSLEB128(int Value) const {
+void Dwarf::PrintSLEB128(int Value) const {
int Sign = Value >> (8 * sizeof(Value) - 1);
bool IsMore;
/// SizeSLEB128 - Compute the number of bytes required for a signed leb128
/// value.
-unsigned DwarfWriter::SizeSLEB128(int Value) {
+unsigned Dwarf::SizeSLEB128(int Value) {
unsigned Size = 0;
int Sign = Value >> (8 * sizeof(Value) - 1);
bool IsMore;
/// EmitInt8 - Emit a byte directive and value.
///
-void DwarfWriter::EmitInt8(int Value) const {
- O << Asm->Data8bitsDirective;
+void Dwarf::EmitInt8(int Value) const {
+ O << TAI->getData8bitsDirective();
PrintHex(Value & 0xFF);
}
/// EmitInt16 - Emit a short directive and value.
///
-void DwarfWriter::EmitInt16(int Value) const {
- O << Asm->Data16bitsDirective;
+void Dwarf::EmitInt16(int Value) const {
+ O << TAI->getData16bitsDirective();
PrintHex(Value & 0xFFFF);
}
/// EmitInt32 - Emit a long directive and value.
///
-void DwarfWriter::EmitInt32(int Value) const {
- O << Asm->Data32bitsDirective;
+void Dwarf::EmitInt32(int Value) const {
+ O << TAI->getData32bitsDirective();
PrintHex(Value);
}
/// EmitInt64 - Emit a long long directive and value.
///
-void DwarfWriter::EmitInt64(uint64_t Value) const {
- if (Asm->Data64bitsDirective) {
- O << Asm->Data64bitsDirective << "0x" << std::hex << Value << std::dec;
+void Dwarf::EmitInt64(uint64_t Value) const {
+ if (TAI->getData64bitsDirective()) {
+ O << TAI->getData64bitsDirective() << "0x" << std::hex << Value << std::dec;
} else {
if (TD->isBigEndian()) {
EmitInt32(unsigned(Value >> 32)); O << "\n";
/// EmitString - Emit a string with quotes and a null terminator.
/// Special characters are emitted properly. (Eg. '\t')
-void DwarfWriter::EmitString(const std::string &String) const {
- O << Asm->AsciiDirective
+void Dwarf::EmitString(const std::string &String) const {
+ O << TAI->getAsciiDirective()
<< "\"";
for (unsigned i = 0, N = String.size(); i < N; ++i) {
unsigned char C = String[i];
case '\t': O << "\\t"; break;
default:
O << '\\';
- O << char('0' + (C >> 6));
- O << char('0' + (C >> 3));
- O << char('0' + (C >> 0));
+ O << char('0' + ((C >> 6) & 7));
+ O << char('0' + ((C >> 3) & 7));
+ O << char('0' + ((C >> 0) & 7));
break;
}
} else if (C == '\"') {
/// PrintLabelName - Print label name in form used by Dwarf writer.
///
-void DwarfWriter::PrintLabelName(const char *Tag, unsigned Number) const {
- O << Asm->PrivateGlobalPrefix
+void Dwarf::PrintLabelName(const char *Tag, unsigned Number) const {
+ O << TAI->getPrivateGlobalPrefix()
<< "debug_"
<< Tag;
if (Number) O << Number;
/// EmitLabel - Emit location label for internal use by Dwarf.
///
-void DwarfWriter::EmitLabel(const char *Tag, unsigned Number) const {
+void Dwarf::EmitLabel(const char *Tag, unsigned Number) const {
PrintLabelName(Tag, Number);
O << ":\n";
}
/// EmitReference - Emit a reference to a label.
///
-void DwarfWriter::EmitReference(const char *Tag, unsigned Number) const {
- if (AddressSize == 4)
- O << Asm->Data32bitsDirective;
+void Dwarf::EmitReference(const char *Tag, unsigned Number) const {
+ if (TAI->getAddressSize() == 4)
+ O << TAI->getData32bitsDirective();
else
- O << Asm->Data64bitsDirective;
+ O << TAI->getData64bitsDirective();
PrintLabelName(Tag, Number);
}
-void DwarfWriter::EmitReference(const std::string &Name) const {
- if (AddressSize == 4)
- O << Asm->Data32bitsDirective;
+void Dwarf::EmitReference(const std::string &Name) const {
+ if (TAI->getAddressSize() == 4)
+ O << TAI->getData32bitsDirective();
else
- O << Asm->Data64bitsDirective;
+ O << TAI->getData64bitsDirective();
O << Name;
}
/// EmitDifference - Emit an label difference as sizeof(pointer) value. Some
/// assemblers do not accept absolute expressions with data directives, so there
/// is an option (needsSet) to use an intermediary 'set' expression.
-void DwarfWriter::EmitDifference(const char *TagHi, unsigned NumberHi,
+void Dwarf::EmitDifference(const char *TagHi, unsigned NumberHi,
const char *TagLo, unsigned NumberLo) const {
- if (needsSet) {
+ if (TAI->needsSet()) {
static unsigned SetCounter = 0;
O << "\t.set\t";
PrintLabelName(TagLo, NumberLo);
O << "\n";
- if (AddressSize == sizeof(int32_t))
- O << Asm->Data32bitsDirective;
+ if (TAI->getAddressSize() == sizeof(int32_t))
+ O << TAI->getData32bitsDirective();
else
- O << Asm->Data64bitsDirective;
+ O << TAI->getData64bitsDirective();
PrintLabelName("set", SetCounter);
++SetCounter;
} else {
- if (AddressSize == sizeof(int32_t))
- O << Asm->Data32bitsDirective;
+ if (TAI->getAddressSize() == sizeof(int32_t))
+ O << TAI->getData32bitsDirective();
else
- O << Asm->Data64bitsDirective;
+ O << TAI->getData64bitsDirective();
PrintLabelName(TagHi, NumberHi);
O << "-";
}
}
-/// NewAbbreviation - Add the abbreviation to the Abbreviation vector.
+/// AssignAbbrevNumber - Define a unique number for the abbreviation.
///
-unsigned DwarfWriter::NewAbbreviation(DIEAbbrev *Abbrev) {
- return Abbreviations.insert(*Abbrev);
+void Dwarf::AssignAbbrevNumber(DIEAbbrev *Abbrev) {
+ // Profile the node so that we can make it unique.
+ FoldingSetNodeID ID;
+ Abbrev->Profile(ID);
+
+ // Check the set for priors.
+ DIEAbbrev *InSet = AbbreviationsSet.GetOrInsertNode(Abbrev);
+
+ // If it's newly added.
+ if (InSet == Abbrev) {
+ // Add to abbreviation list.
+ Abbreviations.push_back(Abbrev);
+ // Assign the vector position + 1 as its number.
+ Abbrev->setNumber(Abbreviations.size());
+ } else {
+ // Assign existing abbreviation number.
+ Abbrev->setNumber(InSet->getNumber());
+ }
}
/// NewString - Add a string to the constant pool and returns a label.
///
-DWLabel DwarfWriter::NewString(const std::string &String) {
+DWLabel Dwarf::NewString(const std::string &String) {
unsigned StringID = StringPool.insert(String);
return DWLabel("string", StringID);
}
/// AddSourceLine - Add location information to specified debug information
/// entry.
-void DwarfWriter::AddSourceLine(DIE *Die, CompileUnitDesc *File, unsigned Line) {
+void Dwarf::AddSourceLine(DIE *Die, CompileUnitDesc *File, unsigned Line){
if (File && Line) {
CompileUnit *FileUnit = FindCompileUnit(File);
unsigned FileID = FileUnit->getID();
/// AddAddress - Add an address attribute to a die based on the location
/// provided.
-void DwarfWriter::AddAddress(DIE *Die, unsigned Attribute,
+void Dwarf::AddAddress(DIE *Die, unsigned Attribute,
const MachineLocation &Location) {
DIEBlock *Block = new DIEBlock();
+ unsigned Reg = RI->getDwarfRegNum(Location.getRegister());
+
if (Location.isRegister()) {
- Block->AddUInt(DW_FORM_data1,
- DW_OP_reg0 + RI->getDwarfRegNum(Location.getRegister()));
+ if (Reg < 32) {
+ Block->AddUInt(DW_FORM_data1, DW_OP_reg0 + Reg);
+ } else {
+ Block->AddUInt(DW_FORM_data1, DW_OP_regx);
+ Block->AddUInt(DW_FORM_udata, Reg);
+ }
} else {
- Block->AddUInt(DW_FORM_data1,
- DW_OP_breg0 + RI->getDwarfRegNum(Location.getRegister()));
+ if (Reg < 32) {
+ Block->AddUInt(DW_FORM_data1, DW_OP_breg0 + Reg);
+ } else {
+ Block->AddUInt(DW_FORM_data1, DW_OP_bregx);
+ Block->AddUInt(DW_FORM_udata, Reg);
+ }
Block->AddUInt(DW_FORM_sdata, Location.getOffset());
}
Block->ComputeSize(*this);
/// getDieMapSlotFor - Returns the debug information entry map slot for the
/// specified debug descriptor.
-DIE *&DwarfWriter::getDieMapSlotFor(DebugInfoDesc *DD) {
+DIE *&Dwarf::getDieMapSlotFor(DebugInfoDesc *DD) {
return DescToDieMap[DD];
}
-
+
/// NewType - Create a new type DIE.
///
-DIE *DwarfWriter::NewType(DIE *Context, TypeDesc *TyDesc, CompileUnit *Unit) {
+DIE *Dwarf::NewType(DIE *Context, TypeDesc *TyDesc, CompileUnit *Unit) {
if (!TyDesc) {
// FIXME - Hack for missing types
DIE *Die = new DIE(DW_TAG_base_type);
Unit->getDie()->AddChild(Die);
return Die;
}
-
- // FIXME - Should handle other contexts that compile units.
-
+
// Check for pre-existence.
DIE *&Slot = Unit->getDieMapSlotFor(TyDesc);
if (Slot) return Slot;
+ // Type DIE result.
+ DIE *Ty = NULL;
+
+ // FIXME - Not sure why programs and variables are coming through here.
+ // Short cut for handling subprogram types (not really a TyDesc.)
+ if (SubprogramDesc *SubprogramTy = dyn_cast<SubprogramDesc>(TyDesc)) {
+ Slot = Ty = new DIE(DW_TAG_pointer_type);
+ Ty->AddUInt(DW_AT_byte_size, 0, TAI->getAddressSize());
+ Ty->AddString(DW_AT_name, DW_FORM_string, SubprogramTy->getName());
+ Context->AddChild(Ty);
+ return Slot;
+ }
+ // Short cut for handling global variable types (not really a TyDesc.)
+ if (GlobalVariableDesc *GlobalVariableTy =
+ dyn_cast<GlobalVariableDesc>(TyDesc)) {
+ Slot = Ty = new DIE(DW_TAG_pointer_type);
+ Ty->AddUInt(DW_AT_byte_size, 0, TAI->getAddressSize());
+ Ty->AddString(DW_AT_name, DW_FORM_string, GlobalVariableTy->getName());
+ Context->AddChild(Ty);
+ return Slot;
+ }
+
// Get core information.
const std::string &Name = TyDesc->getName();
uint64_t Size = TyDesc->getSize() >> 3;
- DIE *Ty = NULL;
-
if (BasicTypeDesc *BasicTy = dyn_cast<BasicTypeDesc>(TyDesc)) {
// Fundamental types like int, float, bool
Slot = Ty = new DIE(DW_TAG_base_type);
}
case DW_TAG_structure_type:
case DW_TAG_union_type: {
- // FIXME - this is just the basics.
// Add elements to structure type.
for(unsigned i = 0, N = Elements.size(); i < N; ++i) {
- DerivedTypeDesc *MemberDesc = cast<DerivedTypeDesc>(Elements[i]);
-
- // Extract the basic information.
- const std::string &Name = MemberDesc->getName();
- TypeDesc *MemTy = MemberDesc->getFromType();
- uint64_t Size = MemberDesc->getSize();
- uint64_t Align = MemberDesc->getAlign();
- uint64_t Offset = MemberDesc->getOffset();
-
- // Construct member debug information entry.
- DIE *Member = new DIE(DW_TAG_member);
-
- // Add name if not "".
- if (!Name.empty()) Member->AddString(DW_AT_name, DW_FORM_string, Name);
- // Add location if available.
- AddSourceLine(Member, MemberDesc->getFile(), MemberDesc->getLine());
+ DebugInfoDesc *Element = Elements[i];
- // Most of the time the field info is the same as the members.
- uint64_t FieldSize = Size;
- uint64_t FieldAlign = Align;
- uint64_t FieldOffset = Offset;
-
- if (TypeDesc *FromTy = MemberDesc->getFromType()) {
- Member->AddDIEntry(DW_AT_type, DW_FORM_ref4,
- NewType(Context, FromTy, Unit));
- FieldSize = FromTy->getSize();
- FieldAlign = FromTy->getSize();
- }
+ if (DerivedTypeDesc *MemberDesc = dyn_cast<DerivedTypeDesc>(Element)) {
+ // Add field or base class.
+
+ unsigned Tag = MemberDesc->getTag();
- // Unless we have a bit field.
- if (FieldSize != Size) {
- // Construct the alignment mask.
- uint64_t AlignMask = ~(FieldAlign - 1);
- // Determine the high bit + 1 of the declared size.
- uint64_t HiMark = (Offset + FieldSize) & AlignMask;
- // Work backwards to determine the base offset of the field.
- FieldOffset = HiMark - FieldSize;
- // Now normalize offset to the field.
- Offset -= FieldOffset;
+ // Extract the basic information.
+ const std::string &Name = MemberDesc->getName();
+ TypeDesc *MemTy = MemberDesc->getFromType();
+ uint64_t Size = MemberDesc->getSize();
+ uint64_t Align = MemberDesc->getAlign();
+ uint64_t Offset = MemberDesc->getOffset();
+
+ // Construct member debug information entry.
+ DIE *Member = new DIE(Tag);
+
+ // Add name if not "".
+ if (!Name.empty())Member->AddString(DW_AT_name, DW_FORM_string, Name);
+ // Add location if available.
+ AddSourceLine(Member, MemberDesc->getFile(), MemberDesc->getLine());
+
+ // Most of the time the field info is the same as the members.
+ uint64_t FieldSize = Size;
+ uint64_t FieldAlign = Align;
+ uint64_t FieldOffset = Offset;
+
+ if (TypeDesc *FromTy = MemberDesc->getFromType()) {
+ Member->AddDIEntry(DW_AT_type, DW_FORM_ref4,
+ NewType(Context, FromTy, Unit));
+ FieldSize = FromTy->getSize();
+ FieldAlign = FromTy->getSize();
+ }
+
+ // Unless we have a bit field.
+ if (Tag == DW_TAG_member && FieldSize != Size) {
+ // Construct the alignment mask.
+ uint64_t AlignMask = ~(FieldAlign - 1);
+ // Determine the high bit + 1 of the declared size.
+ uint64_t HiMark = (Offset + FieldSize) & AlignMask;
+ // Work backwards to determine the base offset of the field.
+ FieldOffset = HiMark - FieldSize;
+ // Now normalize offset to the field.
+ Offset -= FieldOffset;
+
+ // Maybe we need to work from the other end.
+ if (TD->isLittleEndian()) Offset = FieldSize - (Offset + Size);
+
+ // Add size and offset.
+ Member->AddUInt(DW_AT_byte_size, 0, FieldSize >> 3);
+ Member->AddUInt(DW_AT_bit_size, 0, Size);
+ Member->AddUInt(DW_AT_bit_offset, 0, Offset);
+ }
+
+ // Add computation for offset.
+ DIEBlock *Block = new DIEBlock();
+ Block->AddUInt(DW_FORM_data1, DW_OP_plus_uconst);
+ Block->AddUInt(DW_FORM_udata, FieldOffset >> 3);
+ Block->ComputeSize(*this);
+ Member->AddBlock(DW_AT_data_member_location, 0, Block);
+
+ // Add accessibility (public default unless is base class.
+ if (MemberDesc->isProtected()) {
+ Member->AddUInt(DW_AT_accessibility, 0, DW_ACCESS_protected);
+ } else if (MemberDesc->isPrivate()) {
+ Member->AddUInt(DW_AT_accessibility, 0, DW_ACCESS_private);
+ } else if (Tag == DW_TAG_inheritance) {
+ Member->AddUInt(DW_AT_accessibility, 0, DW_ACCESS_public);
+ }
- // Maybe we need to work from the other end.
- if (TD->isLittleEndian()) Offset = FieldSize - (Offset + Size);
+ Ty->AddChild(Member);
+ } else if (GlobalVariableDesc *StaticDesc =
+ dyn_cast<GlobalVariableDesc>(Element)) {
+ // Add static member.
- Member->AddUInt(DW_AT_byte_size, 0, FieldSize >> 3);
- Member->AddUInt(DW_AT_bit_size, 0, Size);
- Member->AddUInt(DW_AT_bit_offset, 0, Offset);
+ // Construct member debug information entry.
+ DIE *Static = new DIE(DW_TAG_variable);
+
+ // Add name and mangled name.
+ const std::string &Name = StaticDesc->getDisplayName();
+ const std::string &MangledName = StaticDesc->getName();
+ Static->AddString(DW_AT_name, DW_FORM_string, Name);
+ Static->AddString(DW_AT_MIPS_linkage_name, DW_FORM_string,
+ MangledName);
+
+ // Add location.
+ AddSourceLine(Static, StaticDesc->getFile(), StaticDesc->getLine());
+
+ // Add type.
+ if (TypeDesc *StaticTy = StaticDesc->getType()) {
+ Static->AddDIEntry(DW_AT_type, DW_FORM_ref4,
+ NewType(Context, StaticTy, Unit));
+ }
+
+ // Add flags.
+ Static->AddUInt(DW_AT_external, DW_FORM_flag, 1);
+ Static->AddUInt(DW_AT_declaration, DW_FORM_flag, 1);
+
+ Ty->AddChild(Static);
+ } else if (SubprogramDesc *MethodDesc =
+ dyn_cast<SubprogramDesc>(Element)) {
+ // Add member function.
+
+ // Construct member debug information entry.
+ DIE *Method = new DIE(DW_TAG_subprogram);
+
+ // Add name and mangled name.
+ const std::string &Name = MethodDesc->getDisplayName();
+ const std::string &MangledName = MethodDesc->getName();
+ bool IsCTor = false;
+
+ if (Name.empty()) {
+ Method->AddString(DW_AT_name, DW_FORM_string, MangledName);
+ IsCTor = TyDesc->getName() == MangledName;
+ } else {
+ Method->AddString(DW_AT_name, DW_FORM_string, Name);
+ Method->AddString(DW_AT_MIPS_linkage_name, DW_FORM_string,
+ MangledName);
+ }
+
+ // Add location.
+ AddSourceLine(Method, MethodDesc->getFile(), MethodDesc->getLine());
+
+ // Add type.
+ if (CompositeTypeDesc *MethodTy =
+ dyn_cast_or_null<CompositeTypeDesc>(MethodDesc->getType())) {
+ // Get argument information.
+ std::vector<DebugInfoDesc *> &Args = MethodTy->getElements();
+
+ // If not a ctor.
+ if (!IsCTor) {
+ // Add return type.
+ Method->AddDIEntry(DW_AT_type, DW_FORM_ref4,
+ NewType(Context, dyn_cast<TypeDesc>(Args[0]),
+ Unit));
+ }
+
+ // Add arguments.
+ for(unsigned i = 1, N = Args.size(); i < N; ++i) {
+ DIE *Arg = new DIE(DW_TAG_formal_parameter);
+ Arg->AddDIEntry(DW_AT_type, DW_FORM_ref4,
+ NewType(Context, cast<TypeDesc>(Args[i]), Unit));
+ Arg->AddUInt(DW_AT_artificial, DW_FORM_flag, 1);
+ Method->AddChild(Arg);
+ }
+ }
+
+ // Add flags.
+ Method->AddUInt(DW_AT_external, DW_FORM_flag, 1);
+ Method->AddUInt(DW_AT_declaration, DW_FORM_flag, 1);
+
+ Ty->AddChild(Method);
}
-
- // Add computation for offset.
- DIEBlock *Block = new DIEBlock();
- Block->AddUInt(DW_FORM_data1, DW_OP_plus_uconst);
- Block->AddUInt(DW_FORM_udata, FieldOffset >> 3);
- Block->ComputeSize(*this);
- Member->AddBlock(DW_AT_data_member_location, 0, Block);
-
- Ty->AddChild(Member);
}
break;
}
break;
}
+ case DW_TAG_subroutine_type: {
+ // Add prototype flag.
+ Ty->AddUInt(DW_AT_prototyped, DW_FORM_flag, 1);
+ // Add return type.
+ Ty->AddDIEntry(DW_AT_type, DW_FORM_ref4,
+ NewType(Context, dyn_cast<TypeDesc>(Elements[0]), Unit));
+
+ // Add arguments.
+ for(unsigned i = 1, N = Elements.size(); i < N; ++i) {
+ DIE *Arg = new DIE(DW_TAG_formal_parameter);
+ Arg->AddDIEntry(DW_AT_type, DW_FORM_ref4,
+ NewType(Context, cast<TypeDesc>(Elements[i]), Unit));
+ Ty->AddChild(Arg);
+ }
+
+ break;
+ }
default: break;
}
}
-
+
assert(Ty && "Type not supported yet");
// Add size if non-zero (derived types don't have a size.)
/// NewCompileUnit - Create new compile unit and it's debug information entry.
///
-CompileUnit *DwarfWriter::NewCompileUnit(CompileUnitDesc *UnitDesc,
+CompileUnit *Dwarf::NewCompileUnit(CompileUnitDesc *UnitDesc,
unsigned ID) {
// Construct debug information entry.
DIE *Die = new DIE(DW_TAG_compile_unit);
- Die->AddDelta (DW_AT_stmt_list, DW_FORM_data4, DWLabel("line", 0),
- DWLabel("section_line", 0));
- Die->AddLabel (DW_AT_high_pc, DW_FORM_addr, DWLabel("text_end", 0));
- Die->AddLabel (DW_AT_low_pc, DW_FORM_addr, DWLabel("text_begin", 0));
+ Die->AddDelta (DW_AT_stmt_list, DW_FORM_data4, DWLabel("section_line", 0),
+ DWLabel("section_line", 0));
+// Die->AddLabel (DW_AT_high_pc, DW_FORM_addr, DWLabel("text_end", 0));
+// Die->AddLabel (DW_AT_low_pc, DW_FORM_addr, DWLabel("text_begin", 0));
Die->AddString(DW_AT_producer, DW_FORM_string, UnitDesc->getProducer());
Die->AddUInt (DW_AT_language, DW_FORM_data1, UnitDesc->getLanguage());
Die->AddString(DW_AT_name, DW_FORM_string, UnitDesc->getFileName());
/// FindCompileUnit - Get the compile unit for the given descriptor.
///
-CompileUnit *DwarfWriter::FindCompileUnit(CompileUnitDesc *UnitDesc) {
+CompileUnit *Dwarf::FindCompileUnit(CompileUnitDesc *UnitDesc) {
CompileUnit *Unit = DescToUnitMap[UnitDesc];
assert(Unit && "Missing compile unit.");
return Unit;
/// NewGlobalVariable - Add a new global variable DIE.
///
-DIE *DwarfWriter::NewGlobalVariable(GlobalVariableDesc *GVD) {
+DIE *Dwarf::NewGlobalVariable(GlobalVariableDesc *GVD) {
// Get the compile unit context.
CompileUnitDesc *UnitDesc = static_cast<CompileUnitDesc *>(GVD->getContext());
CompileUnit *Unit = FindCompileUnit(UnitDesc);
// Get the global variable itself.
GlobalVariable *GV = GVD->getGlobalVariable();
- // Generate the mangled name.
- std::string MangledName = Asm->Mang->getValueName(GV);
- // Gather the details (simplify add attribute code.)
- const std::string &Name = GVD->getName();
-
+ const std::string &Name = GVD->hasMangledName() ? GVD->getDisplayName()
+ : GVD->getName();
+ const std::string &MangledName = GVD->hasMangledName() ? GVD->getName()
+ : "";
// Get the global's type.
DIE *Type = NewType(Unit->getDie(), GVD->getType(), Unit);
// Create the globale variable DIE.
DIE *VariableDie = new DIE(DW_TAG_variable);
- VariableDie->AddString (DW_AT_name, DW_FORM_string, Name);
- VariableDie->AddDIEntry (DW_AT_type, DW_FORM_ref4, Type);
- VariableDie->AddUInt (DW_AT_external, DW_FORM_flag, 1);
+ VariableDie->AddString(DW_AT_name, DW_FORM_string, Name);
+ if (!MangledName.empty()) {
+ VariableDie->AddString(DW_AT_MIPS_linkage_name, DW_FORM_string,
+ MangledName);
+ }
+ VariableDie->AddDIEntry(DW_AT_type, DW_FORM_ref4, Type);
+ VariableDie->AddUInt(DW_AT_external, DW_FORM_flag, 1);
// Add source line info if available.
AddSourceLine(VariableDie, UnitDesc, GVD->getLine());
+
+ // Work up linkage name.
+ const std::string LinkageName = Asm->getGlobalLinkName(GV);
// Add address.
DIEBlock *Block = new DIEBlock();
Block->AddUInt(DW_FORM_data1, DW_OP_addr);
- Block->AddObjectLabel(DW_FORM_udata, MangledName);
+ Block->AddObjectLabel(DW_FORM_udata, LinkageName);
Block->ComputeSize(*this);
VariableDie->AddBlock(DW_AT_location, 0, Block);
/// NewSubprogram - Add a new subprogram DIE.
///
-DIE *DwarfWriter::NewSubprogram(SubprogramDesc *SPD) {
+DIE *Dwarf::NewSubprogram(SubprogramDesc *SPD) {
// Get the compile unit context.
CompileUnitDesc *UnitDesc = static_cast<CompileUnitDesc *>(SPD->getContext());
CompileUnit *Unit = FindCompileUnit(UnitDesc);
if (Slot) return Slot;
// Gather the details (simplify add attribute code.)
- const std::string &Name = SPD->getName();
+ const std::string &Name = SPD->hasMangledName() ? SPD->getDisplayName()
+ : SPD->getName();
+ const std::string &MangledName = SPD->hasMangledName() ? SPD->getName()
+ : "";
DIE *Type = NewType(Unit->getDie(), SPD->getType(), Unit);
unsigned IsExternal = SPD->isStatic() ? 0 : 1;
DIE *SubprogramDie = new DIE(DW_TAG_subprogram);
- SubprogramDie->AddString (DW_AT_name, DW_FORM_string, Name);
+ SubprogramDie->AddString(DW_AT_name, DW_FORM_string, Name);
+ if (!MangledName.empty()) {
+ SubprogramDie->AddString(DW_AT_MIPS_linkage_name, DW_FORM_string,
+ MangledName);
+ }
if (Type) {
- SubprogramDie->AddDIEntry (DW_AT_type, DW_FORM_ref4, Type);
+ SubprogramDie->AddDIEntry(DW_AT_type, DW_FORM_ref4, Type);
}
- SubprogramDie->AddUInt (DW_AT_external, DW_FORM_flag, IsExternal);
- SubprogramDie->AddUInt (DW_AT_prototyped, DW_FORM_flag, 1);
+ SubprogramDie->AddUInt(DW_AT_external, DW_FORM_flag, IsExternal);
+ SubprogramDie->AddUInt(DW_AT_prototyped, DW_FORM_flag, 1);
// Add source line info if available.
AddSourceLine(SubprogramDie, UnitDesc, SPD->getLine());
/// NewScopeVariable - Create a new scope variable.
///
-DIE *DwarfWriter::NewScopeVariable(DebugVariable *DV, CompileUnit *Unit) {
+DIE *Dwarf::NewScopeVariable(DebugVariable *DV, CompileUnit *Unit) {
// Get the descriptor.
VariableDesc *VD = DV->getDesc();
/// ConstructScope - Construct the components of a scope.
///
-void DwarfWriter::ConstructScope(DebugScope *ParentScope,
+void Dwarf::ConstructScope(DebugScope *ParentScope,
DIE *ParentDie, CompileUnit *Unit) {
// Add variables to scope.
std::vector<DebugVariable *> &Variables = ParentScope->getVariables();
// Define the Scope debug information entry.
DebugScope *Scope = Scopes[j];
// FIXME - Ignore inlined functions for the time being.
- if (Scope->getParent()) continue;
+ if (!Scope->getParent()) continue;
+
+ unsigned StartID = Scope->getStartLabelID();
+ unsigned EndID = Scope->getEndLabelID();
+
+ // Throw out scope if block is discarded.
+ if (StartID && !DebugInfo->isLabelValid(StartID)) continue;
+ if (EndID && !DebugInfo->isLabelValid(EndID)) continue;
DIE *ScopeDie = new DIE(DW_TAG_lexical_block);
// Add the scope bounds.
- if (unsigned StartID = Scope->getStartLabelID()) {
+ if (StartID) {
ScopeDie->AddLabel(DW_AT_low_pc, DW_FORM_addr,
DWLabel("loc", StartID));
} else {
ScopeDie->AddLabel(DW_AT_low_pc, DW_FORM_addr,
DWLabel("func_begin", SubprogramCount));
}
- if (unsigned EndID = Scope->getEndLabelID()) {
+ if (EndID) {
ScopeDie->AddLabel(DW_AT_high_pc, DW_FORM_addr,
DWLabel("loc", EndID));
} else {
/// ConstructRootScope - Construct the scope for the subprogram.
///
-void DwarfWriter::ConstructRootScope(DebugScope *RootScope) {
+void Dwarf::ConstructRootScope(DebugScope *RootScope) {
// Exit if there is no root scope.
if (!RootScope) return;
/// EmitInitial - Emit initial Dwarf declarations. This is necessary for cc
/// tools to recognize the object file contains Dwarf information.
///
-void DwarfWriter::EmitInitial() {
+void Dwarf::EmitInitial() {
// Check to see if we already emitted intial headers.
if (didInitial) return;
didInitial = true;
// Dwarf sections base addresses.
- Asm->SwitchToDataSection(DwarfFrameSection, 0);
- EmitLabel("section_frame", 0);
- Asm->SwitchToDataSection(DwarfInfoSection, 0);
+ if (TAI->getDwarfRequiresFrameSection()) {
+ Asm->SwitchToDataSection(TAI->getDwarfFrameSection(), 0);
+ EmitLabel("section_frame", 0);
+ }
+ Asm->SwitchToDataSection(TAI->getDwarfInfoSection(), 0);
EmitLabel("section_info", 0);
- EmitLabel("info", 0);
- Asm->SwitchToDataSection(DwarfAbbrevSection, 0);
+ Asm->SwitchToDataSection(TAI->getDwarfAbbrevSection(), 0);
EmitLabel("section_abbrev", 0);
- EmitLabel("abbrev", 0);
- Asm->SwitchToDataSection(DwarfARangesSection, 0);
+ Asm->SwitchToDataSection(TAI->getDwarfARangesSection(), 0);
EmitLabel("section_aranges", 0);
- Asm->SwitchToDataSection(DwarfMacInfoSection, 0);
+ Asm->SwitchToDataSection(TAI->getDwarfMacInfoSection(), 0);
EmitLabel("section_macinfo", 0);
- Asm->SwitchToDataSection(DwarfLineSection, 0);
+ Asm->SwitchToDataSection(TAI->getDwarfLineSection(), 0);
EmitLabel("section_line", 0);
- EmitLabel("line", 0);
- Asm->SwitchToDataSection(DwarfLocSection, 0);
+ Asm->SwitchToDataSection(TAI->getDwarfLocSection(), 0);
EmitLabel("section_loc", 0);
- Asm->SwitchToDataSection(DwarfPubNamesSection, 0);
+ Asm->SwitchToDataSection(TAI->getDwarfPubNamesSection(), 0);
EmitLabel("section_pubnames", 0);
- Asm->SwitchToDataSection(DwarfStrSection, 0);
+ Asm->SwitchToDataSection(TAI->getDwarfStrSection(), 0);
EmitLabel("section_str", 0);
- Asm->SwitchToDataSection(DwarfRangesSection, 0);
+ Asm->SwitchToDataSection(TAI->getDwarfRangesSection(), 0);
EmitLabel("section_ranges", 0);
-
- Asm->SwitchToDataSection(TextSection, 0);
+ Asm->SwitchToTextSection(TAI->getTextSection(), 0);
EmitLabel("text_begin", 0);
- Asm->SwitchToDataSection(DataSection, 0);
+ Asm->SwitchToDataSection(TAI->getDataSection(), 0);
EmitLabel("data_begin", 0);
-
+
// Emit common frame information.
EmitInitialDebugFrame();
}
/// EmitDIE - Recusively Emits a debug information entry.
///
-void DwarfWriter::EmitDIE(DIE *Die) const {
+void Dwarf::EmitDIE(DIE *Die) const {
// Get the abbreviation for this DIE.
- unsigned AbbrevID = Die->getAbbrevID();
- const DIEAbbrev &Abbrev = Abbreviations[AbbrevID];
+ unsigned AbbrevNumber = Die->getAbbrevNumber();
+ const DIEAbbrev *Abbrev = Abbreviations[AbbrevNumber - 1];
O << "\n";
// Emit the code (index) for the abbreviation.
- EmitULEB128Bytes(AbbrevID);
+ EmitULEB128Bytes(AbbrevNumber);
EOL(std::string("Abbrev [" +
- utostr(AbbrevID) +
+ utostr(AbbrevNumber) +
"] 0x" + utohexstr(Die->getOffset()) +
":0x" + utohexstr(Die->getSize()) + " " +
- TagString(Abbrev.getTag())));
+ TagString(Abbrev->getTag())));
const std::vector<DIEValue *> &Values = Die->getValues();
- const std::vector<DIEAbbrevData> &AbbrevData = Abbrev.getData();
+ const std::vector<DIEAbbrevData> &AbbrevData = Abbrev->getData();
// Emit the DIE attribute values.
for (unsigned i = 0, N = Values.size(); i < N; ++i) {
}
// Emit the DIE children if any.
- if (Abbrev.getChildrenFlag() == DW_CHILDREN_yes) {
+ if (Abbrev->getChildrenFlag() == DW_CHILDREN_yes) {
const std::vector<DIE *> &Children = Die->getChildren();
for (unsigned j = 0, M = Children.size(); j < M; ++j) {
/// SizeAndOffsetDie - Compute the size and offset of a DIE.
///
-unsigned DwarfWriter::SizeAndOffsetDie(DIE *Die, unsigned Offset, bool Last) {
+unsigned Dwarf::SizeAndOffsetDie(DIE *Die, unsigned Offset, bool Last) {
// Get the children.
const std::vector<DIE *> &Children = Die->getChildren();
Die->Complete(*this);
// Get the abbreviation for this DIE.
- unsigned AbbrevID = Die->getAbbrevID();
- const DIEAbbrev &Abbrev = Abbreviations[AbbrevID];
+ unsigned AbbrevNumber = Die->getAbbrevNumber();
+ const DIEAbbrev *Abbrev = Abbreviations[AbbrevNumber - 1];
// Set DIE offset
Die->setOffset(Offset);
// Start the size with the size of abbreviation code.
- Offset += SizeULEB128(AbbrevID);
+ Offset += SizeULEB128(AbbrevNumber);
const std::vector<DIEValue *> &Values = Die->getValues();
- const std::vector<DIEAbbrevData> &AbbrevData = Abbrev.getData();
+ const std::vector<DIEAbbrevData> &AbbrevData = Abbrev->getData();
// Emit the DIE attribute values.
for (unsigned i = 0, N = Values.size(); i < N; ++i) {
// Emit the DIE children if any.
if (!Children.empty()) {
- assert(Abbrev.getChildrenFlag() == DW_CHILDREN_yes &&
+ assert(Abbrev->getChildrenFlag() == DW_CHILDREN_yes &&
"Children flag not set");
for (unsigned j = 0, M = Children.size(); j < M; ++j) {
/// SizeAndOffsets - Compute the size and offset of all the DIEs.
///
-void DwarfWriter::SizeAndOffsets() {
+void Dwarf::SizeAndOffsets() {
// Process each compile unit.
for (unsigned i = 0, N = CompileUnits.size(); i < N; ++i) {
/// EmitFrameMoves - Emit frame instructions to describe the layout of the
/// frame.
-void DwarfWriter::EmitFrameMoves(const char *BaseLabel, unsigned BaseLabelID,
+void Dwarf::EmitFrameMoves(const char *BaseLabel, unsigned BaseLabelID,
std::vector<MachineMove *> &Moves) {
for (unsigned i = 0, N = Moves.size(); i < N; ++i) {
MachineMove *Move = Moves[i];
unsigned LabelID = Move->getLabelID();
+
+ // Throw out move if the label is invalid.
+ if (LabelID && !DebugInfo->isLabelValid(LabelID)) continue;
+
const MachineLocation &Dst = Move->getDestination();
const MachineLocation &Src = Move->getSource();
// Advance row if new location.
if (BaseLabel && LabelID && BaseLabelID != LabelID) {
- EmitULEB128Bytes(DW_CFA_advance_loc4);
+ EmitInt8(DW_CFA_advance_loc4);
EOL("DW_CFA_advance_loc4");
EmitDifference("loc", LabelID, BaseLabel, BaseLabelID);
EOL("");
BaseLabel = "loc";
}
+ int stackGrowth =
+ Asm->TM.getFrameInfo()->getStackGrowthDirection() ==
+ TargetFrameInfo::StackGrowsUp ?
+ TAI->getAddressSize() : -TAI->getAddressSize();
+
// If advancing cfa.
if (Dst.isRegister() && Dst.getRegister() == MachineLocation::VirtualFP) {
if (!Src.isRegister()) {
if (Src.getRegister() == MachineLocation::VirtualFP) {
- EmitULEB128Bytes(DW_CFA_def_cfa_offset);
+ EmitInt8(DW_CFA_def_cfa_offset);
EOL("DW_CFA_def_cfa_offset");
} else {
- EmitULEB128Bytes(DW_CFA_def_cfa);
+ EmitInt8(DW_CFA_def_cfa);
EOL("DW_CFA_def_cfa");
EmitULEB128Bytes(RI->getDwarfRegNum(Src.getRegister()));
EOL("Register");
}
- int stackGrowth =
- Asm->TM.getFrameInfo()->getStackGrowthDirection() ==
- TargetFrameInfo::StackGrowsUp ?
- AddressSize : -AddressSize;
+ int Offset = Src.getOffset() / stackGrowth;
- EmitULEB128Bytes(Src.getOffset() / stackGrowth);
+ EmitULEB128Bytes(Offset);
EOL("Offset");
} else {
+ assert(0 && "Machine move no supported yet.");
}
} else {
+ unsigned Reg = RI->getDwarfRegNum(Src.getRegister());
+ int Offset = Dst.getOffset() / stackGrowth;
+
+ if (Offset < 0) {
+ EmitInt8(DW_CFA_offset_extended_sf);
+ EOL("DW_CFA_offset_extended_sf");
+ EmitULEB128Bytes(Reg);
+ EOL("Reg");
+ EmitSLEB128Bytes(Offset);
+ EOL("Offset");
+ } else if (Reg < 64) {
+ EmitInt8(DW_CFA_offset + Reg);
+ EOL("DW_CFA_offset + Reg");
+ EmitULEB128Bytes(Offset);
+ EOL("Offset");
+ } else {
+ EmitInt8(DW_CFA_offset_extended);
+ EOL("DW_CFA_offset_extended");
+ EmitULEB128Bytes(Reg);
+ EOL("Reg");
+ EmitULEB128Bytes(Offset);
+ EOL("Offset");
+ }
}
}
}
/// EmitDebugInfo - Emit the debug info section.
///
-void DwarfWriter::EmitDebugInfo() const {
+void Dwarf::EmitDebugInfo() const {
// Start debug info section.
- Asm->SwitchToDataSection(DwarfInfoSection, 0);
+ Asm->SwitchToDataSection(TAI->getDwarfInfoSection(), 0);
// Process each compile unit.
for (unsigned i = 0, N = CompileUnits.size(); i < N; ++i) {
EmitInt16(DWARF_VERSION); EOL("DWARF version number");
EmitDifference("abbrev_begin", 0, "section_abbrev", 0);
EOL("Offset Into Abbrev. Section");
- EmitInt8(AddressSize); EOL("Address Size (in bytes)");
+ EmitInt8(TAI->getAddressSize()); EOL("Address Size (in bytes)");
EmitDIE(Die);
EmitLabel("info_end", Unit->getID());
/// EmitAbbreviations - Emit the abbreviation section.
///
-void DwarfWriter::EmitAbbreviations() const {
+void Dwarf::EmitAbbreviations() const {
// Check to see if it is worth the effort.
if (!Abbreviations.empty()) {
// Start the debug abbrev section.
- Asm->SwitchToDataSection(DwarfAbbrevSection, 0);
+ Asm->SwitchToDataSection(TAI->getDwarfAbbrevSection(), 0);
EmitLabel("abbrev_begin", 0);
// For each abbrevation.
- for (unsigned AbbrevID = 1, NAID = Abbreviations.size();
- AbbrevID <= NAID; ++AbbrevID) {
+ for (unsigned i = 0, N = Abbreviations.size(); i < N; ++i) {
// Get abbreviation data
- const DIEAbbrev &Abbrev = Abbreviations[AbbrevID];
+ const DIEAbbrev *Abbrev = Abbreviations[i];
// Emit the abbrevations code (base 1 index.)
- EmitULEB128Bytes(AbbrevID); EOL("Abbreviation Code");
+ EmitULEB128Bytes(Abbrev->getNumber()); EOL("Abbreviation Code");
// Emit the abbreviations data.
- Abbrev.Emit(*this);
+ Abbrev->Emit(*this);
O << "\n";
}
/// EmitDebugLines - Emit source line information.
///
-void DwarfWriter::EmitDebugLines() const {
+void Dwarf::EmitDebugLines() const {
// Minimum line delta, thus ranging from -10..(255-10).
const int MinLineDelta = -(DW_LNS_fixed_advance_pc + 1);
// Maximum line delta, thus ranging from -10..(255-10).
const int MaxLineDelta = 255 + MinLineDelta;
// Start the dwarf line section.
- Asm->SwitchToDataSection(DwarfLineSection, 0);
+ Asm->SwitchToDataSection(TAI->getDwarfLineSection(), 0);
// Construct the section header.
EmitLabel("line_prolog_end", 0);
- // Emit line information
- const std::vector<SourceLineInfo *> &LineInfos = DebugInfo->getSourceLines();
-
- // Dwarf assumes we start with first line of first source file.
- unsigned Source = 1;
- unsigned Line = 1;
-
- // Construct rows of the address, source, line, column matrix.
- for (unsigned i = 0, N = LineInfos.size(); i < N; ++i) {
- SourceLineInfo *LineInfo = LineInfos[i];
+ // A sequence for each text section.
+ for (unsigned j = 0, M = SectionSourceLines.size(); j < M; ++j) {
+ // Isolate current sections line info.
+ const std::vector<SourceLineInfo> &LineInfos = SectionSourceLines[j];
if (DwarfVerbose) {
- unsigned SourceID = LineInfo->getSourceID();
- const SourceFileInfo &SourceFile = SourceFiles[SourceID];
- unsigned DirectoryID = SourceFile.getDirectoryID();
O << "\t"
- << Asm->CommentString << " "
- << Directories[DirectoryID]
- << SourceFile.getName() << ":"
- << LineInfo->getLine() << "\n";
+ << TAI->getCommentString() << " "
+ << "Section "
+ << SectionMap[j + 1].c_str() << "\n";
}
- // Define the line address.
- EmitInt8(0); EOL("Extended Op");
- EmitInt8(4 + 1); EOL("Op size");
- EmitInt8(DW_LNE_set_address); EOL("DW_LNE_set_address");
- EmitReference("loc", LineInfo->getLabelID()); EOL("Location label");
+ // Dwarf assumes we start with first line of first source file.
+ unsigned Source = 1;
+ unsigned Line = 1;
- // If change of source, then switch to the new source.
- if (Source != LineInfo->getSourceID()) {
- Source = LineInfo->getSourceID();
- EmitInt8(DW_LNS_set_file); EOL("DW_LNS_set_file");
- EmitULEB128Bytes(Source); EOL("New Source");
- }
-
- // If change of line.
- if (Line != LineInfo->getLine()) {
- // Determine offset.
- int Offset = LineInfo->getLine() - Line;
- int Delta = Offset - MinLineDelta;
+ // Construct rows of the address, source, line, column matrix.
+ for (unsigned i = 0, N = LineInfos.size(); i < N; ++i) {
+ const SourceLineInfo &LineInfo = LineInfos[i];
+ unsigned LabelID = LineInfo.getLabelID();
+
+ // Source line labels are validated at the MachineDebugInfo level.
- // Update line.
- Line = LineInfo->getLine();
+ if (DwarfVerbose) {
+ unsigned SourceID = LineInfo.getSourceID();
+ const SourceFileInfo &SourceFile = SourceFiles[SourceID];
+ unsigned DirectoryID = SourceFile.getDirectoryID();
+ O << "\t"
+ << TAI->getCommentString() << " "
+ << Directories[DirectoryID]
+ << SourceFile.getName() << ":"
+ << LineInfo.getLine() << "\n";
+ }
+
+ // Define the line address.
+ EmitInt8(0); EOL("Extended Op");
+ EmitInt8(4 + 1); EOL("Op size");
+ EmitInt8(DW_LNE_set_address); EOL("DW_LNE_set_address");
+ EmitReference("loc", LabelID); EOL("Location label");
- // If delta is small enough and in range...
- if (Delta >= 0 && Delta < (MaxLineDelta - 1)) {
- // ... then use fast opcode.
- EmitInt8(Delta - MinLineDelta); EOL("Line Delta");
+ // If change of source, then switch to the new source.
+ if (Source != LineInfo.getSourceID()) {
+ Source = LineInfo.getSourceID();
+ EmitInt8(DW_LNS_set_file); EOL("DW_LNS_set_file");
+ EmitULEB128Bytes(Source); EOL("New Source");
+ }
+
+ // If change of line.
+ if (Line != LineInfo.getLine()) {
+ // Determine offset.
+ int Offset = LineInfo.getLine() - Line;
+ int Delta = Offset - MinLineDelta;
+
+ // Update line.
+ Line = LineInfo.getLine();
+
+ // If delta is small enough and in range...
+ if (Delta >= 0 && Delta < (MaxLineDelta - 1)) {
+ // ... then use fast opcode.
+ EmitInt8(Delta - MinLineDelta); EOL("Line Delta");
+ } else {
+ // ... otherwise use long hand.
+ EmitInt8(DW_LNS_advance_line); EOL("DW_LNS_advance_line");
+ EmitSLEB128Bytes(Offset); EOL("Line Offset");
+ EmitInt8(DW_LNS_copy); EOL("DW_LNS_copy");
+ }
} else {
- // ... otherwise use long hand.
- EmitInt8(DW_LNS_advance_line); EOL("DW_LNS_advance_line");
- EmitSLEB128Bytes(Offset); EOL("Line Offset");
+ // Copy the previous row (different address or source)
EmitInt8(DW_LNS_copy); EOL("DW_LNS_copy");
}
- } else {
- // Copy the previous row (different address or source)
- EmitInt8(DW_LNS_copy); EOL("DW_LNS_copy");
}
- }
- // Define last address.
- EmitInt8(0); EOL("Extended Op");
- EmitInt8(4 + 1); EOL("Op size");
- EmitInt8(DW_LNE_set_address); EOL("DW_LNE_set_address");
- EmitReference("text_end", 0); EOL("Location label");
+ // Define last address of section.
+ EmitInt8(0); EOL("Extended Op");
+ EmitInt8(4 + 1); EOL("Op size");
+ EmitInt8(DW_LNE_set_address); EOL("DW_LNE_set_address");
+ EmitReference("section_end", j + 1); EOL("Section end label");
- // Mark end of matrix.
- EmitInt8(0); EOL("DW_LNE_end_sequence");
- EmitULEB128Bytes(1); O << "\n";
- EmitInt8(1); O << "\n";
+ // Mark end of matrix.
+ EmitInt8(0); EOL("DW_LNE_end_sequence");
+ EmitULEB128Bytes(1); O << "\n";
+ EmitInt8(1); O << "\n";
+ }
EmitLabel("line_end", 0);
/// EmitInitialDebugFrame - Emit common frame info into a debug frame section.
///
-void DwarfWriter::EmitInitialDebugFrame() {
+void Dwarf::EmitInitialDebugFrame() {
+ if (TAI->getDwarfRequiresFrameSection())
+ return;
+
int stackGrowth =
Asm->TM.getFrameInfo()->getStackGrowthDirection() ==
TargetFrameInfo::StackGrowsUp ?
- AddressSize : -AddressSize;
+ TAI->getAddressSize() : -TAI->getAddressSize();
// Start the dwarf frame section.
- Asm->SwitchToDataSection(DwarfFrameSection, 0);
+ Asm->SwitchToDataSection(TAI->getDwarfFrameSection(), 0);
+ EmitLabel("frame_common", 0);
EmitDifference("frame_common_end", 0,
"frame_common_begin", 0);
EOL("Length of Common Information Entry");
/// EmitFunctionDebugFrame - Emit per function frame info into a debug frame
/// section.
-void DwarfWriter::EmitFunctionDebugFrame() {
+void Dwarf::EmitFunctionDebugFrame() {
+ if (TAI->getDwarfRequiresFrameSection())
+ return;
+
// Start the dwarf frame section.
- Asm->SwitchToDataSection(DwarfFrameSection, 0);
+ Asm->SwitchToDataSection(TAI->getDwarfFrameSection(), 0);
EmitDifference("frame_end", SubprogramCount,
"frame_begin", SubprogramCount);
EmitLabel("frame_begin", SubprogramCount);
- EmitReference("section_frame", 0); EOL("FDE CIE offset");
+ EmitDifference("frame_common", 0, "section_frame", 0);
+ EOL("FDE CIE offset");
EmitReference("func_begin", SubprogramCount); EOL("FDE initial location");
EmitDifference("func_end", SubprogramCount,
/// EmitDebugPubNames - Emit visible names into a debug pubnames section.
///
-void DwarfWriter::EmitDebugPubNames() {
+void Dwarf::EmitDebugPubNames() {
// Start the dwarf pubnames section.
- Asm->SwitchToDataSection(DwarfPubNamesSection, 0);
+ Asm->SwitchToDataSection(TAI->getDwarfPubNamesSection(), 0);
// Process each compile unit.
for (unsigned i = 0, N = CompileUnits.size(); i < N; ++i) {
/// EmitDebugStr - Emit visible names into a debug str section.
///
-void DwarfWriter::EmitDebugStr() {
+void Dwarf::EmitDebugStr() {
// Check to see if it is worth the effort.
if (!StringPool.empty()) {
// Start the dwarf str section.
- Asm->SwitchToDataSection(DwarfStrSection, 0);
+ Asm->SwitchToDataSection(TAI->getDwarfStrSection(), 0);
// For each of strings in the string pool.
for (unsigned StringID = 1, N = StringPool.size();
/// EmitDebugLoc - Emit visible names into a debug loc section.
///
-void DwarfWriter::EmitDebugLoc() {
+void Dwarf::EmitDebugLoc() {
// Start the dwarf loc section.
- Asm->SwitchToDataSection(DwarfLocSection, 0);
+ Asm->SwitchToDataSection(TAI->getDwarfLocSection(), 0);
O << "\n";
}
/// EmitDebugARanges - Emit visible names into a debug aranges section.
///
-void DwarfWriter::EmitDebugARanges() {
+void Dwarf::EmitDebugARanges() {
// Start the dwarf aranges section.
- Asm->SwitchToDataSection(DwarfARangesSection, 0);
+ Asm->SwitchToDataSection(TAI->getDwarfARangesSection(), 0);
// FIXME - Mock up
#if 0
EmitReference("info_begin", Unit->getID());
EOL("Offset of Compilation Unit Info");
- EmitInt8(AddressSize); EOL("Size of Address");
+ EmitInt8(TAI->getAddressSize()); EOL("Size of Address");
EmitInt8(0); EOL("Size of Segment Descriptor");
/// EmitDebugRanges - Emit visible names into a debug ranges section.
///
-void DwarfWriter::EmitDebugRanges() {
+void Dwarf::EmitDebugRanges() {
// Start the dwarf ranges section.
- Asm->SwitchToDataSection(DwarfRangesSection, 0);
+ Asm->SwitchToDataSection(TAI->getDwarfRangesSection(), 0);
O << "\n";
}
/// EmitDebugMacInfo - Emit visible names into a debug macinfo section.
///
-void DwarfWriter::EmitDebugMacInfo() {
+void Dwarf::EmitDebugMacInfo() {
// Start the dwarf macinfo section.
- Asm->SwitchToDataSection(DwarfMacInfoSection, 0);
+ Asm->SwitchToDataSection(TAI->getDwarfMacInfoSection(), 0);
O << "\n";
}
/// ConstructCompileUnitDIEs - Create a compile unit DIE for each source and
/// header file.
-void DwarfWriter::ConstructCompileUnitDIEs() {
+void Dwarf::ConstructCompileUnitDIEs() {
const UniqueVector<CompileUnitDesc *> CUW = DebugInfo->getCompileUnits();
for (unsigned i = 1, N = CUW.size(); i <= N; ++i) {
/// ConstructGlobalDIEs - Create DIEs for each of the externally visible global
/// variables.
-void DwarfWriter::ConstructGlobalDIEs() {
+void Dwarf::ConstructGlobalDIEs() {
std::vector<GlobalVariableDesc *> GlobalVariables =
DebugInfo->getAnchoredDescriptors<GlobalVariableDesc>(*M);
/// ConstructSubprogramDIEs - Create DIEs for each of the externally visible
/// subprograms.
-void DwarfWriter::ConstructSubprogramDIEs() {
+void Dwarf::ConstructSubprogramDIEs() {
std::vector<SubprogramDesc *> Subprograms =
DebugInfo->getAnchoredDescriptors<SubprogramDesc>(*M);
}
//===----------------------------------------------------------------------===//
-// Main entry points.
+/// Dwarf implemenation.
//
-DwarfWriter::DwarfWriter(std::ostream &OS, AsmPrinter *A)
+Dwarf::Dwarf(std::ostream &OS, AsmPrinter *A,
+ const TargetAsmInfo *T)
: O(OS)
, Asm(A)
+, TAI(T)
, TD(Asm->TM.getTargetData())
, RI(Asm->TM.getRegisterInfo())
, M(NULL)
, DebugInfo(NULL)
, didInitial(false)
, shouldEmit(false)
-, IsNormalText(false)
, SubprogramCount(0)
, CompileUnits()
+, AbbreviationsSet()
, Abbreviations()
, StringPool()
, DescToUnitMap()
, DescToDieMap()
-, TypeToDieMap()
-, AddressSize(sizeof(int32_t))
-, hasLEB128(false)
-, hasDotLoc(false)
-, hasDotFile(false)
-, needsSet(false)
-, DwarfAbbrevSection(".debug_abbrev")
-, DwarfInfoSection(".debug_info")
-, DwarfLineSection(".debug_line")
-, DwarfFrameSection(".debug_frame")
-, DwarfPubNamesSection(".debug_pubnames")
-, DwarfPubTypesSection(".debug_pubtypes")
-, DwarfStrSection(".debug_str")
-, DwarfLocSection(".debug_loc")
-, DwarfARangesSection(".debug_aranges")
-, DwarfRangesSection(".debug_ranges")
-, DwarfMacInfoSection(".debug_macinfo")
-, TextSection(".text")
-, DataSection(".data")
-{}
-DwarfWriter::~DwarfWriter() {
+, SectionMap()
+, SectionSourceLines()
+{
+}
+Dwarf::~Dwarf() {
for (unsigned i = 0, N = CompileUnits.size(); i < N; ++i) {
delete CompileUnits[i];
}
/// SetDebugInfo - Set DebugInfo when it's known that pass manager has
/// created it. Set by the target AsmPrinter.
-void DwarfWriter::SetDebugInfo(MachineDebugInfo *DI) {
+void Dwarf::SetDebugInfo(MachineDebugInfo *DI) {
// Make sure initial declarations are made.
if (!DebugInfo && DI->hasInfo()) {
DebugInfo = DI;
// Create DIEs for each of the externally visible subprograms.
ConstructSubprogramDIEs();
+
+ // Prime section data.
+ SectionMap.insert(std::string("\t") + TAI->getTextSection());
}
}
/// BeginModule - Emit all Dwarf sections that should come prior to the content.
///
-void DwarfWriter::BeginModule(Module *M) {
+void Dwarf::BeginModule(Module *M) {
this->M = M;
if (!ShouldEmitDwarf()) return;
/// EndModule - Emit all Dwarf sections that should come after the content.
///
-void DwarfWriter::EndModule() {
+void Dwarf::EndModule() {
if (!ShouldEmitDwarf()) return;
EOL("Dwarf End Module");
// Standard sections final addresses.
- Asm->SwitchToTextSection(TextSection, 0);
+ Asm->SwitchToTextSection(TAI->getTextSection(), 0);
EmitLabel("text_end", 0);
- Asm->SwitchToDataSection(DataSection, 0);
+ Asm->SwitchToDataSection(TAI->getDataSection(), 0);
EmitLabel("data_end", 0);
+ // End text sections.
+ for (unsigned i = 1, N = SectionMap.size(); i <= N; ++i) {
+ Asm->SwitchToTextSection(SectionMap[i].c_str(), 0);
+ EmitLabel("section_end", i);
+ }
+
// Compute DIE offsets and sizes.
SizeAndOffsets();
/// BeginFunction - Gather pre-function debug information. Assumes being
/// emitted immediately after the function entry point.
-void DwarfWriter::BeginFunction(MachineFunction *MF, bool IsNormalText) {
+void Dwarf::BeginFunction(MachineFunction *MF) {
this->MF = MF;
- // FIXME - should be able to debug coalesced functions.
- this->IsNormalText = IsNormalText;
- // FIXME - should be able to debug coalesced functions.
- if (IsNormalText) {
- // Begin accumulating function debug information.
- DebugInfo->BeginFunction(MF);
-
- if (!ShouldEmitDwarf()) return;
- EOL("Dwarf Begin Function");
+ if (!ShouldEmitDwarf()) return;
+ EOL("Dwarf Begin Function");
+
+ // Begin accumulating function debug information.
+ DebugInfo->BeginFunction(MF);
- // Assumes in correct section after the entry point.
- EmitLabel("func_begin", ++SubprogramCount);
- } else {
- ShouldEmitDwarf();
- }
+ // Assumes in correct section after the entry point.
+ EmitLabel("func_begin", ++SubprogramCount);
}
/// EndFunction - Gather and emit post-function debug information.
///
-void DwarfWriter::EndFunction() {
+void Dwarf::EndFunction() {
if (!ShouldEmitDwarf()) return;
EOL("Dwarf End Function");
- // FIXME - should be able to debug coalesced functions.
- if (IsNormalText) {
- // Define end label for subprogram.
- EmitLabel("func_end", SubprogramCount);
-
- // Construct scopes for subprogram.
- ConstructRootScope(DebugInfo->getRootScope());
+ // Define end label for subprogram.
+ EmitLabel("func_end", SubprogramCount);
- // Emit function frame information.
- EmitFunctionDebugFrame();
+ // Get function line info.
+ const std::vector<SourceLineInfo> &LineInfos = DebugInfo->getSourceLines();
+
+ if (!LineInfos.empty()) {
+ // Get section line info.
+ unsigned ID = SectionMap.insert(Asm->CurrentSection);
+ if (SectionSourceLines.size() < ID) SectionSourceLines.resize(ID);
+ std::vector<SourceLineInfo> &SectionLineInfos = SectionSourceLines[ID-1];
+ // Append the function info to section info.
+ SectionLineInfos.insert(SectionLineInfos.end(),
+ LineInfos.begin(), LineInfos.end());
}
+ // Construct scopes for subprogram.
+ ConstructRootScope(DebugInfo->getRootScope());
+
+ // Emit function frame information.
+ EmitFunctionDebugFrame();
+
+ // Reset the line numbers for the next function.
+ DebugInfo->ClearLineInfo();
+
// Clear function debug information.
DebugInfo->EndFunction();
}
+
+
+//===----------------------------------------------------------------------===//
+/// DwarfWriter Implementation
+
+DwarfWriter::DwarfWriter(std::ostream &OS, AsmPrinter *A,
+ const TargetAsmInfo *T) {
+ DW = new Dwarf(OS, A, T);
+}
+
+DwarfWriter::~DwarfWriter() {
+ delete DW;
+}
+
+/// SetDebugInfo - Set DebugInfo when it's known that pass manager has
+/// created it. Set by the target AsmPrinter.
+void DwarfWriter::SetDebugInfo(MachineDebugInfo *DI) {
+ DW->SetDebugInfo(DI);
+}
+
+/// BeginModule - Emit all Dwarf sections that should come prior to the
+/// content.
+void DwarfWriter::BeginModule(Module *M) {
+ DW->BeginModule(M);
+}
+
+/// EndModule - Emit all Dwarf sections that should come after the content.
+///
+void DwarfWriter::EndModule() {
+ DW->EndModule();
+}
+
+/// BeginFunction - Gather pre-function debug information. Assumes being
+/// emitted immediately after the function entry point.
+void DwarfWriter::BeginFunction(MachineFunction *MF) {
+ DW->BeginFunction(MF);
+}
+
+/// EndFunction - Gather and emit post-function debug information.
+///
+void DwarfWriter::EndFunction() {
+ DW->EndFunction();
+}
projects / oota-llvm.git / blobdiff