//
//===----------------------------------------------------------------------===//
-#ifndef CODEGEN_ASMPRINTER_DIE_H__
-#define CODEGEN_ASMPRINTER_DIE_H__
+#ifndef LLVM_LIB_CODEGEN_ASMPRINTER_DIE_H
+#define LLVM_LIB_CODEGEN_ASMPRINTER_DIE_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 MCExpr;
class MCSymbol;
-class MCSymbolRefExpr;
class raw_ostream;
class DwarfTypeUnit;
/// DIEAbbrev - Dwarf abbreviation, describes the organization of a debug
/// information object.
class DIEAbbrev : public FoldingSetNode {
- /// Tag - Dwarf tag code.
+ /// Unique number for node.
///
- dwarf::Tag Tag;
+ unsigned Number;
- /// ChildrenFlag - Dwarf children flag.
+ /// Tag - Dwarf tag code.
///
- uint16_t ChildrenFlag;
+ dwarf::Tag Tag;
- /// Unique number for node.
+ /// Children - Whether or not this node has children.
///
- unsigned Number;
+ // This cheats a bit in all of the uses since the values in the standard
+ // are 0 and 1 for no children and children respectively.
+ bool Children;
/// Data - Raw data bytes for abbreviation.
///
SmallVector<DIEAbbrevData, 12> Data;
public:
- DIEAbbrev(dwarf::Tag T, uint16_t C) : Tag(T), ChildrenFlag(C), Data() {}
+ DIEAbbrev(dwarf::Tag T, bool C) : Tag(T), Children(C), Data() {}
// Accessors.
dwarf::Tag getTag() const { return Tag; }
unsigned getNumber() const { return Number; }
- uint16_t getChildrenFlag() const { return ChildrenFlag; }
+ bool hasChildren() const { return Children; }
const SmallVectorImpl<DIEAbbrevData> &getData() const { return Data; }
- void setChildrenFlag(uint16_t CF) { ChildrenFlag = CF; }
+ void setChildrenFlag(bool hasChild) { Children = hasChild; }
void setNumber(unsigned N) { Number = N; }
/// AddAttribute - Adds another set of attribute information to the
/// Children DIEs.
///
- std::vector<DIE *> Children;
+ // This can't be a vector<DIE> because pointer validity is requirent for the
+ // Parent pointer and DIEEntry.
+ // It can't be a list<DIE> because some clients need pointer validity before
+ // the object has been added to any child list
+ // (eg: DwarfUnit::constructVariableDIE). These aren't insurmountable, but may
+ // be more convoluted than beneficial.
+ std::vector<std::unique_ptr<DIE>> Children;
DIE *Parent;
///
SmallVector<DIEValue *, 12> Values;
+protected:
+ DIE()
+ : Offset(0), Size(0), Abbrev((dwarf::Tag)0, dwarf::DW_CHILDREN_no),
+ Parent(nullptr) {}
+
public:
- explicit DIE(unsigned Tag)
+ explicit DIE(dwarf::Tag Tag)
: Offset(0), Size(0), Abbrev((dwarf::Tag)Tag, dwarf::DW_CHILDREN_no),
- Parent(0) {}
- ~DIE();
+ Parent(nullptr) {}
// Accessors.
DIEAbbrev &getAbbrev() { return Abbrev; }
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; }
+ const std::vector<std::unique_ptr<DIE>> &getChildren() const {
+ return Children;
+ }
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
/// addChild - Add a child to the DIE.
///
- void addChild(DIE *Child) {
+ void addChild(std::unique_ptr<DIE> Child) {
assert(!Child->getParent());
Abbrev.setChildrenFlag(dwarf::DW_CHILDREN_yes);
- Children.push_back(Child);
Child->Parent = this;
+ Children.push_back(std::move(Child));
}
/// findAttribute - Find a value in the DIE with the attribute given,
/// returns NULL if no such attribute exists.
- DIEValue *findAttribute(uint16_t Attribute) const;
+ DIEValue *findAttribute(dwarf::Attribute Attribute) const;
#ifndef NDEBUG
void print(raw_ostream &O, unsigned IndentCount = 0) const;
virtual void anchor();
public:
- enum {
+ enum Type {
isInteger,
isString,
isExpr,
isEntry,
isTypeSignature,
isBlock,
- isLoc
+ isLoc,
+ isLocList,
};
protected:
- /// Type - Type of data stored in the value.
+ /// Ty - Type of data stored in the value.
///
- unsigned Type;
+ Type Ty;
-public:
- explicit DIEValue(unsigned T) : Type(T) {}
+ explicit DIEValue(Type T) : Ty(T) {}
virtual ~DIEValue() {}
+public:
// Accessors
- unsigned getType() const { return Type; }
+ Type getType() const { return Ty; }
/// EmitValue - Emit value via the Dwarf writer.
///
/// EmitValue - Emit integer of appropriate size.
///
- virtual void EmitValue(AsmPrinter *AP, dwarf::Form Form) const;
+ void EmitValue(AsmPrinter *AP, dwarf::Form Form) const override;
uint64_t getValue() const { return Integer; }
/// SizeOf - Determine size of integer value in bytes.
///
- virtual unsigned SizeOf(AsmPrinter *AP, dwarf::Form Form) const;
+ unsigned SizeOf(AsmPrinter *AP, dwarf::Form Form) const override;
// Implement isa/cast/dyncast.
static bool classof(const DIEValue *I) { return I->getType() == isInteger; }
#ifndef NDEBUG
- virtual void print(raw_ostream &O) const;
+ void print(raw_ostream &O) const override;
#endif
};
/// EmitValue - Emit expression value.
///
- virtual void EmitValue(AsmPrinter *AP, dwarf::Form Form) const;
+ void EmitValue(AsmPrinter *AP, dwarf::Form Form) const override;
/// getValue - Get MCExpr.
///
/// SizeOf - Determine size of expression value in bytes.
///
- virtual unsigned SizeOf(AsmPrinter *AP, dwarf::Form Form) const;
+ unsigned SizeOf(AsmPrinter *AP, dwarf::Form Form) const override;
// Implement isa/cast/dyncast.
static bool classof(const DIEValue *E) { return E->getType() == isExpr; }
#ifndef NDEBUG
- virtual void print(raw_ostream &O) const;
+ void print(raw_ostream &O) const override;
#endif
};
/// EmitValue - Emit label value.
///
- virtual void EmitValue(AsmPrinter *AP, dwarf::Form Form) const;
+ void EmitValue(AsmPrinter *AP, dwarf::Form Form) const override;
/// getValue - Get MCSymbol.
///
/// SizeOf - Determine size of label value in bytes.
///
- virtual unsigned SizeOf(AsmPrinter *AP, dwarf::Form Form) const;
+ unsigned SizeOf(AsmPrinter *AP, dwarf::Form Form) const override;
// Implement isa/cast/dyncast.
static bool classof(const DIEValue *L) { return L->getType() == isLabel; }
#ifndef NDEBUG
- virtual void print(raw_ostream &O) const;
+ void print(raw_ostream &O) const override;
#endif
};
/// EmitValue - Emit delta value.
///
- virtual void EmitValue(AsmPrinter *AP, dwarf::Form Form) const;
+ void EmitValue(AsmPrinter *AP, dwarf::Form Form) const override;
/// SizeOf - Determine size of delta value in bytes.
///
- virtual unsigned SizeOf(AsmPrinter *AP, dwarf::Form Form) const;
+ unsigned SizeOf(AsmPrinter *AP, dwarf::Form Form) const override;
// Implement isa/cast/dyncast.
static bool classof(const DIEValue *D) { return D->getType() == isDelta; }
#ifndef NDEBUG
- virtual void print(raw_ostream &O) const;
+ void print(raw_ostream &O) const override;
#endif
};
///
class DIEString : public DIEValue {
const DIEValue *Access;
- const StringRef Str;
+ StringRef Str;
public:
- DIEString(const DIEValue *Acc, const StringRef S)
+ DIEString(const DIEValue *Acc, StringRef S)
: DIEValue(isString), Access(Acc), Str(S) {}
/// getString - Grab the string out of the object.
/// EmitValue - Emit delta value.
///
- virtual void EmitValue(AsmPrinter *AP, dwarf::Form Form) const;
+ void EmitValue(AsmPrinter *AP, dwarf::Form Form) const override;
/// SizeOf - Determine size of delta value in bytes.
///
- virtual unsigned SizeOf(AsmPrinter *AP, dwarf::Form Form) const;
+ unsigned SizeOf(AsmPrinter *AP, dwarf::Form Form) const override;
// Implement isa/cast/dyncast.
static bool classof(const DIEValue *D) { return D->getType() == isString; }
#ifndef NDEBUG
- virtual void print(raw_ostream &O) const;
+ void print(raw_ostream &O) const override;
#endif
};
/// this class can also be used as a proxy for a debug information entry not
/// yet defined (ie. types.)
class DIEEntry : public DIEValue {
- DIE *const Entry;
+ DIE &Entry;
public:
- explicit DIEEntry(DIE *E) : DIEValue(isEntry), Entry(E) {
- assert(E && "Cannot construct a DIEEntry with a null DIE");
+ explicit DIEEntry(DIE &E) : DIEValue(isEntry), Entry(E) {
}
- DIE *getEntry() const { return Entry; }
+ DIE &getEntry() const { return Entry; }
/// EmitValue - Emit debug information entry offset.
///
- virtual void EmitValue(AsmPrinter *AP, dwarf::Form Form) const;
+ void EmitValue(AsmPrinter *AP, dwarf::Form Form) const override;
/// SizeOf - Determine size of debug information entry in bytes.
///
- virtual unsigned SizeOf(AsmPrinter *AP, dwarf::Form Form) const {
+ unsigned SizeOf(AsmPrinter *AP, dwarf::Form Form) const override {
return Form == dwarf::DW_FORM_ref_addr ? getRefAddrSize(AP)
: sizeof(int32_t);
}
static bool classof(const DIEValue *E) { return E->getType() == isEntry; }
#ifndef NDEBUG
- virtual void print(raw_ostream &O) const;
+ void print(raw_ostream &O) const override;
#endif
};
: DIEValue(isTypeSignature), Unit(Unit) {}
/// \brief Emit type unit signature.
- virtual void EmitValue(AsmPrinter *Asm, dwarf::Form Form) const;
+ void EmitValue(AsmPrinter *Asm, dwarf::Form Form) const override;
/// Returns size of a ref_sig8 entry.
- virtual unsigned SizeOf(AsmPrinter *AP, dwarf::Form Form) const {
+ unsigned SizeOf(AsmPrinter *AP, dwarf::Form Form) const override {
assert(Form == dwarf::DW_FORM_ref_sig8);
return 8;
}
return E->getType() == isTypeSignature;
}
#ifndef NDEBUG
- virtual void print(raw_ostream &O) const;
+ void print(raw_ostream &O) const override;
void dump() const;
#endif
};
class DIELoc : public DIEValue, public DIE {
mutable unsigned Size; // Size in bytes excluding size header.
public:
- DIELoc() : DIEValue(isLoc), DIE(0), Size(0) {}
+ DIELoc() : DIEValue(isLoc), Size(0) {}
/// ComputeSize - Calculate the size of the location expression.
///
/// EmitValue - Emit location data.
///
- virtual void EmitValue(AsmPrinter *AP, dwarf::Form Form) const;
+ void EmitValue(AsmPrinter *AP, dwarf::Form Form) const override;
/// SizeOf - Determine size of location data in bytes.
///
- virtual unsigned SizeOf(AsmPrinter *AP, dwarf::Form Form) const;
+ unsigned SizeOf(AsmPrinter *AP, dwarf::Form Form) const override;
// Implement isa/cast/dyncast.
static bool classof(const DIEValue *E) { return E->getType() == isLoc; }
#ifndef NDEBUG
- virtual void print(raw_ostream &O) const;
+ void print(raw_ostream &O) const override;
#endif
};
class DIEBlock : public DIEValue, public DIE {
mutable unsigned Size; // Size in bytes excluding size header.
public:
- DIEBlock() : DIEValue(isBlock), DIE(0), Size(0) {}
+ DIEBlock() : DIEValue(isBlock), Size(0) {}
/// ComputeSize - Calculate the size of the location expression.
///
/// EmitValue - Emit location data.
///
- virtual void EmitValue(AsmPrinter *AP, dwarf::Form Form) const;
+ void EmitValue(AsmPrinter *AP, dwarf::Form Form) const override;
/// SizeOf - Determine size of location data in bytes.
///
- virtual unsigned SizeOf(AsmPrinter *AP, dwarf::Form Form) const;
+ unsigned SizeOf(AsmPrinter *AP, dwarf::Form Form) const override;
// Implement isa/cast/dyncast.
static bool classof(const DIEValue *E) { return E->getType() == isBlock; }
#ifndef NDEBUG
- virtual void print(raw_ostream &O) const;
+ void print(raw_ostream &O) const override;
+#endif
+};
+
+//===--------------------------------------------------------------------===//
+/// DIELocList - Represents a pointer to a location list in the debug_loc
+/// section.
+//
+class DIELocList : public DIEValue {
+ // Index into the .debug_loc vector.
+ size_t Index;
+
+public:
+ DIELocList(size_t I) : DIEValue(isLocList), Index(I) {}
+
+ /// getValue - Grab the current index out.
+ size_t getValue() const { return Index; }
+
+ /// EmitValue - Emit location data.
+ ///
+ void EmitValue(AsmPrinter *AP, dwarf::Form Form) const override;
+
+ /// SizeOf - Determine size of location data in bytes.
+ ///
+ unsigned SizeOf(AsmPrinter *AP, dwarf::Form Form) const override;
+
+ // Implement isa/cast/dyncast.
+ static bool classof(const DIEValue *E) { return E->getType() == isLocList; }
+
+#ifndef NDEBUG
+ void print(raw_ostream &O) const override;
#endif
};
+
} // end llvm namespace
#endif
projects / oota-llvm.git / blobdiff