//===----------------------------------------------------------------------===//
//
// Data structures for DWARF info entries.
-//
+//
//===----------------------------------------------------------------------===//
#ifndef CODEGEN_ASMPRINTER_DIE_H__
#define CODEGEN_ASMPRINTER_DIE_H__
-#include "DwarfLabel.h"
#include "llvm/ADT/FoldingSet.h"
#include "llvm/ADT/SmallVector.h"
+#include "llvm/MC/MCExpr.h"
#include "llvm/Support/Compiler.h"
#include "llvm/Support/Dwarf.h"
#include <vector>
namespace llvm {
class AsmPrinter;
- class Dwarf;
- class TargetData;
+ class MCSymbol;
+ class MCSymbolRefExpr;
+ class raw_ostream;
+ class DwarfTypeUnit;
//===--------------------------------------------------------------------===//
- /// DIEAbbrevData - Dwarf abbreviation data, describes the one attribute of a
+ /// DIEAbbrevData - Dwarf abbreviation data, describes one attribute of a
/// Dwarf abbreviation.
class DIEAbbrevData {
/// Attribute - Dwarf attribute code.
///
- unsigned Attribute;
+ dwarf::Attribute Attribute;
/// Form - Dwarf form code.
///
- unsigned Form;
+ dwarf::Form Form;
public:
- DIEAbbrevData(unsigned A, unsigned F) : Attribute(A), Form(F) {}
+ DIEAbbrevData(dwarf::Attribute A, dwarf::Form F) : Attribute(A), Form(F) {}
// Accessors.
- unsigned getAttribute() const { return Attribute; }
- unsigned getForm() const { return Form; }
+ dwarf::Attribute getAttribute() const { return Attribute; }
+ dwarf::Form getForm() const { return Form; }
/// Profile - Used to gather unique data for the abbreviation folding set.
///
class DIEAbbrev : public FoldingSetNode {
/// Tag - Dwarf tag code.
///
- unsigned Tag;
+ dwarf::Tag Tag;
- /// Unique number for node.
+ /// ChildrenFlag - Dwarf children flag.
///
- unsigned Number;
+ uint16_t ChildrenFlag;
- /// ChildrenFlag - Dwarf children flag.
+ /// Unique number for node.
///
- unsigned ChildrenFlag;
+ unsigned Number;
/// Data - Raw data bytes for abbreviation.
///
- SmallVector<DIEAbbrevData, 8> Data;
+ SmallVector<DIEAbbrevData, 12> Data;
+
public:
- DIEAbbrev(unsigned T, unsigned C) : Tag(T), ChildrenFlag(C), Data() {}
- virtual ~DIEAbbrev() {}
+ DIEAbbrev(dwarf::Tag T, uint16_t C) : Tag(T), ChildrenFlag(C), Data() {}
// Accessors.
- unsigned getTag() const { return Tag; }
+ dwarf::Tag getTag() const { return Tag; }
unsigned getNumber() const { return Number; }
- unsigned getChildrenFlag() const { return ChildrenFlag; }
- const SmallVector<DIEAbbrevData, 8> &getData() const { return Data; }
- void setTag(unsigned T) { Tag = T; }
- void setChildrenFlag(unsigned CF) { ChildrenFlag = CF; }
+ uint16_t getChildrenFlag() const { return ChildrenFlag; }
+ const SmallVectorImpl<DIEAbbrevData> &getData() const { return Data; }
+ void setChildrenFlag(uint16_t CF) { ChildrenFlag = CF; }
void setNumber(unsigned N) { Number = N; }
/// AddAttribute - Adds another set of attribute information to the
/// abbreviation.
- void AddAttribute(unsigned Attribute, unsigned Form) {
+ void AddAttribute(dwarf::Attribute Attribute, dwarf::Form Form) {
Data.push_back(DIEAbbrevData(Attribute, Form));
}
- /// AddFirstAttribute - Adds a set of attribute information to the front
- /// of the abbreviation.
- void AddFirstAttribute(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) const;
/// Emit - Print the abbreviation using the specified asm printer.
///
- void Emit(const AsmPrinter *Asm) const;
+ void Emit(AsmPrinter *AP) const;
#ifndef NDEBUG
void print(raw_ostream &O);
//===--------------------------------------------------------------------===//
/// DIE - A structured debug information entry. Has an abbreviation which
- /// describes it's organization.
- class CompileUnit;
+ /// describes its organization.
class DIEValue;
class DIE {
protected:
- /// Abbrev - Buffer for constructing abbreviation.
- ///
- DIEAbbrev Abbrev;
-
/// Offset - Offset in debug info section.
///
unsigned Offset;
///
unsigned Size;
+ /// Abbrev - Buffer for constructing abbreviation.
+ ///
+ DIEAbbrev Abbrev;
+
/// Children DIEs.
///
std::vector<DIE *> Children;
- /// Attributes values.
+ DIE *Parent;
+
+ /// Attribute values.
///
- SmallVector<DIEValue*, 32> Values;
+ SmallVector<DIEValue*, 12> Values;
- /// Abstract compile unit.
- CompileUnit *AbstractCU;
-
- // Private data for print()
- mutable unsigned IndentCount;
public:
explicit DIE(unsigned Tag)
- : Abbrev(Tag, dwarf::DW_CHILDREN_no), Offset(0),
- Size(0), IndentCount(0) {}
- virtual ~DIE();
+ : Offset(0), Size(0), Abbrev((dwarf::Tag)Tag, dwarf::DW_CHILDREN_no),
+ Parent(0) {}
+ ~DIE();
// Accessors.
DIEAbbrev &getAbbrev() { return Abbrev; }
+ const DIEAbbrev &getAbbrev() const { return Abbrev; }
unsigned getAbbrevNumber() const { return Abbrev.getNumber(); }
- unsigned getTag() const { return Abbrev.getTag(); }
+ dwarf::Tag getTag() const { return Abbrev.getTag(); }
unsigned getOffset() const { return Offset; }
unsigned getSize() const { return Size; }
const std::vector<DIE *> &getChildren() const { return Children; }
- SmallVector<DIEValue*, 32> &getValues() { return Values; }
- CompileUnit *getAbstractCompileUnit() const { return AbstractCU; }
-
- void setTag(unsigned Tag) { Abbrev.setTag(Tag); }
+ const SmallVectorImpl<DIEValue*> &getValues() const { return Values; }
+ DIE *getParent() const { return Parent; }
+ /// Climb up the parent chain to get the compile or type unit DIE this DIE
+ /// belongs to.
+ const DIE *getUnit() const;
+ /// Similar to getUnit, returns null when DIE is not added to an
+ /// owner yet.
+ const DIE *getUnitOrNull() const;
void setOffset(unsigned O) { Offset = O; }
void setSize(unsigned S) { Size = S; }
- void setAbstractCompileUnit(CompileUnit *CU) { AbstractCU = CU; }
- /// AddValue - Add a value and attributes to a DIE.
+ /// addValue - Add a value and attributes to a DIE.
///
- void AddValue(unsigned Attribute, unsigned Form, DIEValue *Value) {
+ void addValue(dwarf::Attribute Attribute, dwarf::Form Form,
+ DIEValue *Value) {
Abbrev.AddAttribute(Attribute, Form);
Values.push_back(Value);
}
- /// SiblingOffset - Return the offset of the debug information entry's
- /// sibling.
- unsigned SiblingOffset() const { return Offset + Size; }
-
- /// AddSiblingOffset - Add a sibling offset field to the front of the DIE.
+ /// addChild - Add a child to the DIE.
///
- void AddSiblingOffset();
-
- /// AddChild - Add a child to the DIE.
- ///
- void AddChild(DIE *Child) {
+ void addChild(DIE *Child) {
+ assert(!Child->getParent());
Abbrev.setChildrenFlag(dwarf::DW_CHILDREN_yes);
Children.push_back(Child);
+ Child->Parent = this;
}
- /// Detach - Detaches objects connected to it after copying.
- ///
- void Detach() {
- Children.clear();
- }
+ /// findAttribute - Find a value in the DIE with the attribute given,
+ /// returns NULL if no such attribute exists.
+ DIEValue *findAttribute(uint16_t Attribute) const;
#ifndef NDEBUG
- void print(raw_ostream &O, unsigned IncIndent = 0);
+ void print(raw_ostream &O, unsigned IndentCount = 0) const;
void dump();
#endif
};
/// DIEValue - A debug information entry value.
///
class DIEValue {
+ virtual void anchor();
public:
enum {
isInteger,
isString,
+ isExpr,
isLabel,
- isAsIsLabel,
- isSectionOffset,
isDelta,
isEntry,
+ isTypeSignature,
isBlock
};
protected:
/// EmitValue - Emit value via the Dwarf writer.
///
- virtual void EmitValue(Dwarf *D, unsigned Form) const = 0;
+ virtual void EmitValue(AsmPrinter *AP, dwarf::Form Form) const = 0;
/// SizeOf - Return the size of a value in bytes.
///
- virtual unsigned SizeOf(const TargetData *TD, unsigned Form) const = 0;
-
- // Implement isa/cast/dyncast.
- static bool classof(const DIEValue *) { return true; }
+ virtual unsigned SizeOf(AsmPrinter *AP, dwarf::Form Form) const = 0;
#ifndef NDEBUG
- virtual void print(raw_ostream &O) = 0;
- void dump();
+ virtual void print(raw_ostream &O) const = 0;
+ void dump() const;
#endif
};
/// BestForm - Choose the best form for integer.
///
- static unsigned BestForm(bool IsSigned, uint64_t Int) {
+ static dwarf::Form BestForm(bool IsSigned, uint64_t Int) {
if (IsSigned) {
- if ((char)Int == (signed)Int) return dwarf::DW_FORM_data1;
- if ((short)Int == (signed)Int) return dwarf::DW_FORM_data2;
- if ((int)Int == (signed)Int) return dwarf::DW_FORM_data4;
+ const int64_t SignedInt = Int;
+ if ((char)Int == SignedInt) return dwarf::DW_FORM_data1;
+ if ((short)Int == SignedInt) return dwarf::DW_FORM_data2;
+ if ((int)Int == SignedInt) return dwarf::DW_FORM_data4;
} else {
if ((unsigned char)Int == Int) return dwarf::DW_FORM_data1;
if ((unsigned short)Int == Int) return dwarf::DW_FORM_data2;
/// EmitValue - Emit integer of appropriate size.
///
- virtual void EmitValue(Dwarf *D, unsigned Form) const;
+ virtual void EmitValue(AsmPrinter *AP, dwarf::Form Form) const;
+
+ uint64_t getValue() const { return Integer; }
/// SizeOf - Determine size of integer value in bytes.
///
- virtual unsigned SizeOf(const TargetData *TD, unsigned Form) const;
-
+ virtual unsigned SizeOf(AsmPrinter *AP, dwarf::Form Form) const;
// Implement isa/cast/dyncast.
- static bool classof(const DIEInteger *) { return true; }
static bool classof(const DIEValue *I) { return I->getType() == isInteger; }
#ifndef NDEBUG
- virtual void print(raw_ostream &O);
+ virtual void print(raw_ostream &O) const;
#endif
};
//===--------------------------------------------------------------------===//
- /// DIEString - A string value DIE.
- ///
- class DIEString : public DIEValue {
- const std::string Str;
+ /// DIEExpr - An expression DIE.
+ //
+ class DIEExpr : public DIEValue {
+ const MCExpr *Expr;
public:
- explicit DIEString(const std::string &S) : DIEValue(isString), Str(S) {}
+ explicit DIEExpr(const MCExpr *E) : DIEValue(isExpr), Expr(E) {}
- /// EmitValue - Emit string value.
+ /// EmitValue - Emit expression value.
///
- virtual void EmitValue(Dwarf *D, unsigned Form) const;
-
- /// SizeOf - Determine size of string value in bytes.
- ///
- virtual unsigned SizeOf(const TargetData *, unsigned /*Form*/) const {
- return Str.size() + sizeof(char); // sizeof('\0');
- }
-
- // Implement isa/cast/dyncast.
- static bool classof(const DIEString *) { return true; }
- static bool classof(const DIEValue *S) { return S->getType() == isString; }
-
-#ifndef NDEBUG
- virtual void print(raw_ostream &O);
-#endif
- };
-
- //===--------------------------------------------------------------------===//
- /// DIEDwarfLabel - A Dwarf internal label expression DIE.
- //
- class DIEDwarfLabel : public DIEValue {
- const DWLabel Label;
- public:
- explicit DIEDwarfLabel(const DWLabel &L) : DIEValue(isLabel), Label(L) {}
+ virtual void EmitValue(AsmPrinter *AP, dwarf::Form Form) const;
- /// EmitValue - Emit label value.
+ /// getValue - Get MCExpr.
///
- virtual void EmitValue(Dwarf *D, unsigned Form) const;
+ const MCExpr *getValue() const { return Expr; }
- /// SizeOf - Determine size of label value in bytes.
+ /// SizeOf - Determine size of expression value in bytes.
///
- virtual unsigned SizeOf(const TargetData *TD, unsigned Form) const;
+ virtual unsigned SizeOf(AsmPrinter *AP, dwarf::Form Form) const;
// Implement isa/cast/dyncast.
- static bool classof(const DIEDwarfLabel *) { return true; }
- static bool classof(const DIEValue *L) { return L->getType() == isLabel; }
+ static bool classof(const DIEValue *E) { return E->getType() == isExpr; }
#ifndef NDEBUG
- virtual void print(raw_ostream &O);
+ virtual void print(raw_ostream &O) const;
#endif
};
//===--------------------------------------------------------------------===//
- /// DIEObjectLabel - A label to an object in code or data.
+ /// DIELabel - A label DIE.
//
- class DIEObjectLabel : public DIEValue {
- const std::string Label;
+ class DIELabel : public DIEValue {
+ const MCSymbol *Label;
public:
- explicit DIEObjectLabel(const std::string &L)
- : DIEValue(isAsIsLabel), Label(L) {}
+ explicit DIELabel(const MCSymbol *L) : DIEValue(isLabel), Label(L) {}
/// EmitValue - Emit label value.
///
- virtual void EmitValue(Dwarf *D, unsigned Form) const;
+ virtual void EmitValue(AsmPrinter *AP, dwarf::Form Form) const;
+
+ /// getValue - Get MCSymbol.
+ ///
+ const MCSymbol *getValue() const { return Label; }
/// SizeOf - Determine size of label value in bytes.
///
- virtual unsigned SizeOf(const TargetData *TD, unsigned Form) const;
+ virtual unsigned SizeOf(AsmPrinter *AP, dwarf::Form Form) const;
// Implement isa/cast/dyncast.
- static bool classof(const DIEObjectLabel *) { return true; }
- static bool classof(const DIEValue *L) {
- return L->getType() == isAsIsLabel;
- }
+ static bool classof(const DIEValue *L) { return L->getType() == isLabel; }
#ifndef NDEBUG
- virtual void print(raw_ostream &O);
+ virtual void print(raw_ostream &O) const;
#endif
};
//===--------------------------------------------------------------------===//
- /// DIESectionOffset - A section offset DIE.
+ /// DIEDelta - A simple label difference DIE.
///
- class DIESectionOffset : public DIEValue {
- const DWLabel Label;
- const DWLabel Section;
- bool IsEH : 1;
- bool UseSet : 1;
+ class DIEDelta : public DIEValue {
+ const MCSymbol *LabelHi;
+ const MCSymbol *LabelLo;
public:
- DIESectionOffset(const DWLabel &Lab, const DWLabel &Sec,
- bool isEH = false, bool useSet = true)
- : DIEValue(isSectionOffset), Label(Lab), Section(Sec),
- IsEH(isEH), UseSet(useSet) {}
+ DIEDelta(const MCSymbol *Hi, const MCSymbol *Lo)
+ : DIEValue(isDelta), LabelHi(Hi), LabelLo(Lo) {}
- /// EmitValue - Emit section offset.
+ /// EmitValue - Emit delta value.
///
- virtual void EmitValue(Dwarf *D, unsigned Form) const;
+ virtual void EmitValue(AsmPrinter *AP, dwarf::Form Form) const;
- /// SizeOf - Determine size of section offset value in bytes.
+ /// SizeOf - Determine size of delta value in bytes.
///
- virtual unsigned SizeOf(const TargetData *TD, unsigned Form) const;
+ virtual unsigned SizeOf(AsmPrinter *AP, dwarf::Form Form) const;
// Implement isa/cast/dyncast.
- static bool classof(const DIESectionOffset *) { return true; }
- static bool classof(const DIEValue *D) {
- return D->getType() == isSectionOffset;
- }
+ static bool classof(const DIEValue *D) { return D->getType() == isDelta; }
#ifndef NDEBUG
- virtual void print(raw_ostream &O);
+ virtual void print(raw_ostream &O) const;
#endif
};
//===--------------------------------------------------------------------===//
- /// DIEDelta - A simple label difference DIE.
+ /// DIEString - A container for string values.
///
- class DIEDelta : public DIEValue {
- const DWLabel LabelHi;
- const DWLabel LabelLo;
+ class DIEString : public DIEValue {
+ const DIEValue *Access;
+ const StringRef Str;
+
public:
- DIEDelta(const DWLabel &Hi, const DWLabel &Lo)
- : DIEValue(isDelta), LabelHi(Hi), LabelLo(Lo) {}
+ DIEString(const DIEValue *Acc, const StringRef S)
+ : DIEValue(isString), Access(Acc), Str(S) {}
+
+ /// getString - Grab the string out of the object.
+ StringRef getString() const { return Str; }
/// EmitValue - Emit delta value.
///
- virtual void EmitValue(Dwarf *D, unsigned Form) const;
+ virtual void EmitValue(AsmPrinter *AP, dwarf::Form Form) const;
/// SizeOf - Determine size of delta value in bytes.
///
- virtual unsigned SizeOf(const TargetData *TD, unsigned Form) const;
+ virtual unsigned SizeOf(AsmPrinter *AP, dwarf::Form Form) const;
// Implement isa/cast/dyncast.
- static bool classof(const DIEDelta *) { return true; }
- static bool classof(const DIEValue *D) { return D->getType() == isDelta; }
+ static bool classof(const DIEValue *D) { return D->getType() == isString; }
-#ifndef NDEBUG
- virtual void print(raw_ostream &O);
-#endif
+ #ifndef NDEBUG
+ virtual void print(raw_ostream &O) const;
+ #endif
};
//===--------------------------------------------------------------------===//
- /// DIEntry - A pointer to another debug information entry. An instance of
+ /// DIEEntry - A pointer to another debug information entry. An instance of
/// this class can also be used as a proxy for a debug information entry not
/// yet defined (ie. types.)
class DIEEntry : public DIEValue {
- DIE *Entry;
+ DIE *const Entry;
public:
- explicit DIEEntry(DIE *E) : DIEValue(isEntry), Entry(E) {}
+ explicit DIEEntry(DIE *E) : DIEValue(isEntry), Entry(E) {
+ assert(E && "Cannot construct a DIEEntry with a null DIE");
+ }
DIE *getEntry() const { return Entry; }
- void setEntry(DIE *E) { Entry = E; }
/// EmitValue - Emit debug information entry offset.
///
- virtual void EmitValue(Dwarf *D, unsigned Form) const;
+ virtual void EmitValue(AsmPrinter *AP, dwarf::Form Form) const;
/// SizeOf - Determine size of debug information entry in bytes.
///
- virtual unsigned SizeOf(const TargetData *TD, unsigned Form) const {
- return sizeof(int32_t);
+ virtual unsigned SizeOf(AsmPrinter *AP, dwarf::Form Form) const {
+ return Form == dwarf::DW_FORM_ref_addr ? getRefAddrSize(AP)
+ : sizeof(int32_t);
}
+ /// Returns size of a ref_addr entry.
+ static unsigned getRefAddrSize(AsmPrinter *AP);
+
// Implement isa/cast/dyncast.
- static bool classof(const DIEEntry *) { return true; }
static bool classof(const DIEValue *E) { return E->getType() == isEntry; }
#ifndef NDEBUG
- virtual void print(raw_ostream &O);
+ virtual void print(raw_ostream &O) const;
+#endif
+ };
+
+ //===--------------------------------------------------------------------===//
+ /// \brief A signature reference to a type unit.
+ class DIETypeSignature : public DIEValue {
+ const DwarfTypeUnit &Unit;
+ public:
+ explicit DIETypeSignature(const DwarfTypeUnit &Unit)
+ : DIEValue(isTypeSignature), Unit(Unit) {}
+
+ /// \brief Emit type unit signature.
+ virtual void EmitValue(AsmPrinter *Asm, dwarf::Form Form) const;
+
+ /// Returns size of a ref_sig8 entry.
+ virtual unsigned SizeOf(AsmPrinter *AP, dwarf::Form Form) const {
+ assert(Form == dwarf::DW_FORM_ref_sig8);
+ return 8;
+ }
+
+ // \brief Implement isa/cast/dyncast.
+ static bool classof(const DIEValue *E) {
+ return E->getType() == isTypeSignature;
+ }
+#ifndef NDEBUG
+ virtual void print(raw_ostream &O) const;
+ void dump() const;
#endif
};
class DIEBlock : public DIEValue, public DIE {
unsigned Size; // Size in bytes excluding size header.
public:
- DIEBlock()
- : DIEValue(isBlock), DIE(0), Size(0) {}
- virtual ~DIEBlock() {}
+ DIEBlock() : DIEValue(isBlock), DIE(0), Size(0) {}
/// ComputeSize - calculate the size of the block.
///
- unsigned ComputeSize(const TargetData *TD);
+ unsigned ComputeSize(AsmPrinter *AP);
/// BestForm - Choose the best form for data.
///
- unsigned BestForm() const {
+ dwarf::Form BestForm() const {
if ((unsigned char)Size == Size) return dwarf::DW_FORM_block1;
if ((unsigned short)Size == Size) return dwarf::DW_FORM_block2;
if ((unsigned int)Size == Size) return dwarf::DW_FORM_block4;
/// EmitValue - Emit block data.
///
- virtual void EmitValue(Dwarf *D, unsigned Form) const;
+ virtual void EmitValue(AsmPrinter *AP, dwarf::Form Form) const;
/// SizeOf - Determine size of block data in bytes.
///
- virtual unsigned SizeOf(const TargetData *TD, unsigned Form) const;
+ virtual unsigned SizeOf(AsmPrinter *AP, dwarf::Form Form) const;
// Implement isa/cast/dyncast.
- static bool classof(const DIEBlock *) { return true; }
static bool classof(const DIEValue *E) { return E->getType() == isBlock; }
#ifndef NDEBUG
- virtual void print(raw_ostream &O);
+ virtual void print(raw_ostream &O) const;
#endif
};
projects / oota-llvm.git / blobdiff