//===----------------------------------------------------------------------===//
//
// Data structures for DWARF info entries.
-//
+//
//===----------------------------------------------------------------------===//
#ifndef CODEGEN_ASMPRINTER_DIE_H__
#include "llvm/ADT/SmallVector.h"
#include "llvm/Support/Compiler.h"
#include "llvm/Support/Dwarf.h"
+#include "llvm/MC/MCExpr.h"
#include <vector>
namespace llvm {
class AsmPrinter;
class MCSymbol;
+ class MCSymbolRefExpr;
class raw_ostream;
//===--------------------------------------------------------------------===//
- /// 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.
/// Data - Raw data bytes for abbreviation.
///
- SmallVector<DIEAbbrevData, 8> Data;
+ SmallVector<DIEAbbrevData, 12> Data;
public:
DIEAbbrev(uint16_t T, uint16_t C) : Tag(T), ChildrenFlag(C), Data() {}
uint16_t getTag() const { return Tag; }
unsigned getNumber() const { return Number; }
uint16_t getChildrenFlag() const { return ChildrenFlag; }
- const SmallVector<DIEAbbrevData, 8> &getData() const { return Data; }
+ const SmallVectorImpl<DIEAbbrevData> &getData() const { return Data; }
void setTag(uint16_t T) { Tag = T; }
void setChildrenFlag(uint16_t CF) { ChildrenFlag = CF; }
void setNumber(unsigned N) { Number = N; }
Data.push_back(DIEAbbrevData(Attribute, Form));
}
- /// AddFirstAttribute - Adds a set of attribute information to the front
- /// of the abbreviation.
- void AddFirstAttribute(uint16_t Attribute, uint16_t Form) {
- Data.insert(Data.begin(), DIEAbbrevData(Attribute, Form));
- }
-
/// Profile - Used to gather unique data for the abbreviation folding set.
///
void Profile(FoldingSetNodeID &ID) const;
//===--------------------------------------------------------------------===//
/// DIE - A structured debug information entry. Has an abbreviation which
- /// describes it's organization.
+ /// describes its organization.
class DIEValue;
class DIE {
DIE *Parent;
- /// Attributes values.
+ /// Attribute values.
///
- SmallVector<DIEValue*, 32> Values;
+ SmallVector<DIEValue*, 12> Values;
+#ifndef NDEBUG
// Private data for print()
mutable unsigned IndentCount;
+#endif
public:
explicit DIE(unsigned Tag)
- : Offset(0), Size(0), Abbrev(Tag, dwarf::DW_CHILDREN_no), Parent(0),
- IndentCount(0) {}
+ : Offset(0), Size(0), Abbrev(Tag, dwarf::DW_CHILDREN_no), Parent(0) {}
virtual ~DIE();
// Accessors.
unsigned getOffset() const { return Offset; }
unsigned getSize() const { return Size; }
const std::vector<DIE *> &getChildren() const { return Children; }
- const SmallVector<DIEValue*, 32> &getValues() const { return Values; }
+ const SmallVectorImpl<DIEValue*> &getValues() const { return Values; }
DIE *getParent() const { return Parent; }
+ /// Climb up the parent chain to get the compile unit DIE this DIE belongs
+ /// to.
+ DIE *getCompileUnit();
void setTag(unsigned Tag) { Abbrev.setTag(Tag); }
void setOffset(unsigned O) { Offset = O; }
void setSize(unsigned S) { Size = S; }
-
+
/// addValue - Add a value and attributes to a DIE.
///
void addValue(unsigned Attribute, unsigned Form, DIEValue *Value) {
}
#ifndef NDEBUG
- void print(raw_ostream &O, unsigned IncIndent = 0);
+ void print(raw_ostream &O, unsigned IndentCount = 0) const;
void dump();
#endif
};
enum {
isInteger,
isString,
+ isExpr,
isLabel,
isDelta,
isEntry,
virtual unsigned SizeOf(AsmPrinter *AP, unsigned 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
};
///
static unsigned 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;
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
};
//===--------------------------------------------------------------------===//
- /// DIELabel - A label expression DIE.
+ /// DIEExpr - An expression DIE.
+ //
+ class DIEExpr : public DIEValue {
+ const MCExpr *Expr;
+ public:
+ explicit DIEExpr(const MCExpr *E) : DIEValue(isExpr), Expr(E) {}
+
+ /// EmitValue - Emit expression value.
+ ///
+ virtual void EmitValue(AsmPrinter *AP, unsigned Form) const;
+
+ /// getValue - Get MCExpr.
+ ///
+ const MCExpr *getValue() const { return Expr; }
+
+ /// SizeOf - Determine size of expression value in bytes.
+ ///
+ virtual unsigned SizeOf(AsmPrinter *AP, unsigned Form) const;
+
+ // Implement isa/cast/dyncast.
+ static bool classof(const DIEValue *E) { return E->getType() == isExpr; }
+
+#ifndef NDEBUG
+ virtual void print(raw_ostream &O) const;
+#endif
+ };
+
+ //===--------------------------------------------------------------------===//
+ /// DIELabel - A label DIE.
//
class DIELabel : public DIEValue {
const MCSymbol *Label;
/// getValue - Get MCSymbol.
///
- const MCSymbol *getValue() const { return Label; }
+ const MCSymbol *getValue() const { return Label; }
/// SizeOf - Determine size of label value in bytes.
///
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
};
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
};
class DIEEntry : public DIEValue {
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; }
/// SizeOf - Determine size of debug information entry in bytes.
///
virtual unsigned SizeOf(AsmPrinter *AP, unsigned Form) const {
- return sizeof(int32_t);
+ 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 DIEValue *E) { return E->getType() == isEntry; }
#ifndef NDEBUG
- virtual void print(raw_ostream &O);
+ virtual void print(raw_ostream &O) const;
#endif
};
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