-//===-- llvm/CodeGen/DwarfCompileUnit.h - Dwarf Compile Unit ---*- C++ -*--===//
+//===-- llvm/CodeGen/DwarfUnit.h - Dwarf Compile Unit ---*- C++ -*--===//
//
// The LLVM Compiler Infrastructure
//
#include "DIE.h"
#include "DwarfDebug.h"
#include "llvm/ADT/DenseMap.h"
+#include "llvm/ADT/Optional.h"
#include "llvm/ADT/OwningPtr.h"
#include "llvm/ADT/StringMap.h"
#include "llvm/DebugInfo.h"
class DbgVariable;
//===----------------------------------------------------------------------===//
-/// CompileUnit - This dwarf writer support class manages information associated
+/// Unit - This dwarf writer support class manages information associated
/// with a source file.
-class CompileUnit {
+class Unit {
+protected:
/// UniqueID - a numeric ID unique among all CUs in the module
- ///
unsigned UniqueID;
/// Node - MDNode for the compile unit.
- const MDNode *Node;
+ DICompileUnit Node;
- /// Die - Compile unit debug information entry.
- ///
+ /// CUDie - Compile unit debug information entry.
const OwningPtr<DIE> CUDie;
+ /// Offset of the CUDie from beginning of debug info section.
+ unsigned DebugInfoOffset;
+
/// Asm - Target of Dwarf emission.
AsmPrinter *Asm;
DenseMap<const MDNode *, DIEEntry *> MDNodeToDIEEntryMap;
/// GlobalNames - A map of globally visible named entities for this unit.
- ///
- StringMap<DIE *> GlobalNames;
+ StringMap<const DIE *> GlobalNames;
/// GlobalTypes - A map of globally visible types for this unit.
- ///
- StringMap<DIE *> GlobalTypes;
+ StringMap<const DIE *> GlobalTypes;
/// AccelNames - A map of names for the name accelerator table.
- ///
- StringMap<std::vector<DIE *> > AccelNames;
- StringMap<std::vector<DIE *> > AccelObjC;
- StringMap<std::vector<DIE *> > AccelNamespace;
- StringMap<std::vector<std::pair<DIE *, unsigned> > > AccelTypes;
+ StringMap<std::vector<const DIE *> > AccelNames;
+
+ /// AccelObjC - A map of objc spec for the objc accelerator table.
+ StringMap<std::vector<const DIE *> > AccelObjC;
+
+ /// AccelNamespace - A map of names for the namespace accelerator table.
+ StringMap<std::vector<const DIE *> > AccelNamespace;
+
+ /// AccelTypes - A map of names for the type accelerator table.
+ StringMap<std::vector<std::pair<const DIE *, unsigned> > > AccelTypes;
/// DIEBlocks - A list of all the DIEBlocks in use.
std::vector<DIEBlock *> DIEBlocks;
// DIEIntegerOne - A preallocated DIEValue because 1 is used frequently.
DIEInteger *DIEIntegerOne;
+ Unit(unsigned UID, DIE *D, DICompileUnit CU, AsmPrinter *A, DwarfDebug *DW,
+ DwarfUnits *DWU);
+
public:
- CompileUnit(unsigned UID, DIE *D, const MDNode *N, AsmPrinter *A,
- DwarfDebug *DW, DwarfUnits *DWU);
- ~CompileUnit();
+ virtual ~Unit();
// Accessors.
unsigned getUniqueID() const { return UniqueID; }
- uint16_t getLanguage() const { return DICompileUnit(Node).getLanguage(); }
- const MDNode *getNode() const { return Node; }
+ virtual uint16_t getLanguage() const = 0;
+ DICompileUnit getNode() const { return Node; }
DIE *getCUDie() const { return CUDie.get(); }
- const StringMap<DIE *> &getGlobalNames() const { return GlobalNames; }
- const StringMap<DIE *> &getGlobalTypes() const { return GlobalTypes; }
+ const StringMap<const DIE *> &getGlobalNames() const { return GlobalNames; }
+ const StringMap<const DIE *> &getGlobalTypes() const { return GlobalTypes; }
- const StringMap<std::vector<DIE *> > &getAccelNames() const {
+ const StringMap<std::vector<const DIE *> > &getAccelNames() const {
return AccelNames;
}
- const StringMap<std::vector<DIE *> > &getAccelObjC() const {
+ const StringMap<std::vector<const DIE *> > &getAccelObjC() const {
return AccelObjC;
}
- const StringMap<std::vector<DIE *> > &getAccelNamespace() const {
+ const StringMap<std::vector<const DIE *> > &getAccelNamespace() const {
return AccelNamespace;
}
- const StringMap<std::vector<std::pair<DIE *, unsigned> > > &
+ const StringMap<std::vector<std::pair<const DIE *, unsigned> > > &
getAccelTypes() const {
return AccelTypes;
}
+ unsigned getDebugInfoOffset() const { return DebugInfoOffset; }
+ void setDebugInfoOffset(unsigned DbgInfoOff) { DebugInfoOffset = DbgInfoOff; }
+
/// hasContent - Return true if this compile unit has something to write out.
- ///
bool hasContent() const { return !CUDie->getChildren().empty(); }
- /// addGlobalName - Add a new global entity to the compile unit.
- ///
- void addGlobalName(StringRef Name, DIE *Die);
+ /// getParentContextString - Get a string containing the language specific
+ /// context for a global name.
+ std::string getParentContextString(DIScope Context) const;
- /// addGlobalType - Add a new global type to the compile unit.
+ /// addGlobalName - Add a new global entity to the compile unit.
///
- void addGlobalType(DIType Ty);
-
- /// addPubTypes - Add a set of types from the subprogram to the global types.
- void addPubTypes(DISubprogram SP);
+ void addGlobalName(StringRef Name, DIE *Die, DIScope Context);
/// addAccelName - Add a new name to the name accelerator table.
- void addAccelName(StringRef Name, DIE *Die);
+ void addAccelName(StringRef Name, const DIE *Die);
/// addAccelObjC - Add a new name to the ObjC accelerator table.
- void addAccelObjC(StringRef Name, DIE *Die);
+ void addAccelObjC(StringRef Name, const DIE *Die);
/// addAccelNamespace - Add a new name to the namespace accelerator table.
- void addAccelNamespace(StringRef Name, DIE *Die);
+ void addAccelNamespace(StringRef Name, const DIE *Die);
/// addAccelType - Add a new type to the type accelerator table.
- void addAccelType(StringRef Name, std::pair<DIE *, unsigned> Die);
+ void addAccelType(StringRef Name, std::pair<const DIE *, unsigned> Die);
/// getDIE - Returns the debug information entry map slot for the
- /// specified debug variable.
- DIE *getDIE(const MDNode *N) const { return MDNodeToDieMap.lookup(N); }
+ /// specified debug variable. We delegate the request to DwarfDebug
+ /// when the MDNode can be part of the type system, since DIEs for
+ /// the type system can be shared across CUs and the mappings are
+ /// kept in DwarfDebug.
+ DIE *getDIE(DIDescriptor D) const;
+ /// getDIEBlock - Returns a fresh newly allocated DIEBlock.
DIEBlock *getDIEBlock() { return new (DIEValueAllocator) DIEBlock(); }
- /// insertDIE - Insert DIE into the map.
- void insertDIE(const MDNode *N, DIE *D) {
- MDNodeToDieMap.insert(std::make_pair(N, D));
- }
+ /// insertDIE - Insert DIE into the map. We delegate the request to DwarfDebug
+ /// when the MDNode can be part of the type system, since DIEs for
+ /// the type system can be shared across CUs and the mappings are
+ /// kept in DwarfDebug.
+ void insertDIE(DIDescriptor Desc, DIE *D);
/// addDie - Adds or interns the DIE to the compile unit.
///
void addDie(DIE *Buffer) { CUDie->addChild(Buffer); }
/// addFlag - Add a flag that is true to the DIE.
- void addFlag(DIE *Die, uint16_t Attribute);
+ void addFlag(DIE *Die, dwarf::Attribute Attribute);
/// addUInt - Add an unsigned integer attribute data and value.
- ///
- void addUInt(DIE *Die, uint16_t Attribute, uint16_t Form, uint64_t Integer);
+ void addUInt(DIE *Die, dwarf::Attribute Attribute, Optional<dwarf::Form> Form,
+ uint64_t Integer);
+
+ void addUInt(DIEBlock *Block, dwarf::Form Form, uint64_t Integer);
/// addSInt - Add an signed integer attribute data and value.
- ///
- void addSInt(DIE *Die, uint16_t Attribute, uint16_t Form, int64_t Integer);
+ void addSInt(DIE *Die, dwarf::Attribute Attribute, Optional<dwarf::Form> Form,
+ int64_t Integer);
+
+ void addSInt(DIEBlock *Die, Optional<dwarf::Form> Form, int64_t Integer);
/// addString - Add a string attribute data and value.
- ///
- void addString(DIE *Die, uint16_t Attribute, const StringRef Str);
+ void addString(DIE *Die, dwarf::Attribute Attribute, const StringRef Str);
/// addLocalString - Add a string attribute data and value.
- ///
- void addLocalString(DIE *Die, uint16_t Attribute, const StringRef Str);
+ void addLocalString(DIE *Die, dwarf::Attribute Attribute,
+ const StringRef Str);
/// addExpr - Add a Dwarf expression attribute data and value.
- ///
- void addExpr(DIE *Die, uint16_t Attribute, uint16_t Form, const MCExpr *Expr);
+ void addExpr(DIEBlock *Die, dwarf::Form Form, const MCExpr *Expr);
/// addLabel - Add a Dwarf label attribute data and value.
- ///
- void addLabel(DIE *Die, uint16_t Attribute, uint16_t Form,
+ void addLabel(DIE *Die, dwarf::Attribute Attribute, dwarf::Form Form,
const MCSymbol *Label);
- /// addLabelAddress - Add a dwarf label attribute data and value using
- /// either DW_FORM_addr or DW_FORM_GNU_addr_index.
+ void addLabel(DIEBlock *Die, dwarf::Form Form, const MCSymbol *Label);
+
+ /// addSectionLabel - Add a Dwarf section label attribute data and value.
+ ///
+ void addSectionLabel(DIE *Die, dwarf::Attribute Attribute,
+ const MCSymbol *Label);
+
+ /// addSectionOffset - Add an offset into a section attribute data and value.
///
- void addLabelAddress(DIE *Die, uint16_t Attribute, MCSymbol *Label);
+ void addSectionOffset(DIE *Die, dwarf::Attribute Attribute, uint64_t Integer);
/// addOpAddress - Add a dwarf op address data and value using the
/// form given and an op of either DW_FORM_addr or DW_FORM_GNU_addr_index.
- ///
- void addOpAddress(DIE *Die, const MCSymbol *Label);
- void addOpAddress(DIE *Die, const MCSymbolRefExpr *Label);
+ void addOpAddress(DIEBlock *Die, const MCSymbol *Label);
- /// addDelta - Add a label delta attribute data and value.
- ///
- void addDelta(DIE *Die, uint16_t Attribute, uint16_t Form, const MCSymbol *Hi,
- const MCSymbol *Lo);
+ /// addSectionDelta - Add a label delta attribute data and value.
+ void addSectionDelta(DIE *Die, dwarf::Attribute Attribute, const MCSymbol *Hi,
+ const MCSymbol *Lo);
/// addDIEEntry - Add a DIE attribute data and value.
- ///
- void addDIEEntry(DIE *Die, uint16_t Attribute, uint16_t Form, DIE *Entry);
+ void addDIEEntry(DIE *Die, dwarf::Attribute Attribute, DIE *Entry);
+
+ /// addDIEEntry - Add a DIE attribute data and value.
+ void addDIEEntry(DIE *Die, dwarf::Attribute Attribute, DIEEntry *Entry);
/// addBlock - Add block data.
- ///
- void addBlock(DIE *Die, uint16_t Attribute, uint16_t Form, DIEBlock *Block);
+ void addBlock(DIE *Die, dwarf::Attribute Attribute, DIEBlock *Block);
/// addSourceLine - Add location information to specified debug information
/// entry.
/// addAddress - Add an address attribute to a die based on the location
/// provided.
- void addAddress(DIE *Die, uint16_t Attribute, const MachineLocation &Location,
- bool Indirect = false);
+ void addAddress(DIE *Die, dwarf::Attribute Attribute,
+ const MachineLocation &Location, bool Indirect = false);
/// addConstantValue - Add constant value entry in variable DIE.
void addConstantValue(DIE *Die, const MachineOperand &MO, DIType Ty);
void addTemplateParams(DIE &Buffer, DIArray TParams);
/// addRegisterOp - Add register operand.
- void addRegisterOp(DIE *TheDie, unsigned Reg);
+ void addRegisterOp(DIEBlock *TheDie, unsigned Reg);
/// addRegisterOffset - Add register offset.
- void addRegisterOffset(DIE *TheDie, unsigned Reg, int64_t Offset);
+ void addRegisterOffset(DIEBlock *TheDie, unsigned Reg, int64_t Offset);
/// addComplexAddress - Start with the address based on the location provided,
/// and generate the DWARF information necessary to find the actual variable
/// (navigating the extra location information encoded in the type) based on
/// the starting location. Add the DWARF information to the die.
- ///
- void addComplexAddress(const DbgVariable &DV, DIE *Die, uint16_t Attribute,
+ void addComplexAddress(const DbgVariable &DV, DIE *Die,
+ dwarf::Attribute Attribute,
const MachineLocation &Location);
// FIXME: Should be reformulated in terms of addComplexAddress.
/// actual Block variable (navigating the Block struct) based on the
/// starting location. Add the DWARF information to the die. Obsolete,
/// please use addComplexAddress instead.
- ///
- void addBlockByrefAddress(const DbgVariable &DV, DIE *Die, uint16_t Attribute,
+ void addBlockByrefAddress(const DbgVariable &DV, DIE *Die,
+ dwarf::Attribute Attribute,
const MachineLocation &Location);
/// addVariableAddress - Add DW_AT_location attribute for a
void addVariableAddress(const DbgVariable &DV, DIE *Die,
MachineLocation Location);
- /// addToContextOwner - Add Die into the list of its context owner's children.
- void addToContextOwner(DIE *Die, DIScope Context);
-
/// addType - Add a new type attribute to the specified entity. This takes
/// and attribute parameter because DW_AT_friend attributes are also
/// type references.
- void addType(DIE *Entity, DIType Ty, uint16_t Attribute = dwarf::DW_AT_type);
+ void addType(DIE *Entity, DIType Ty,
+ dwarf::Attribute Attribute = dwarf::DW_AT_type);
/// getOrCreateNameSpace - Create a DIE for DINameSpace.
DIE *getOrCreateNameSpace(DINameSpace NS);
/// given DIType.
DIE *getOrCreateTypeDIE(const MDNode *N);
- /// getOrCreateTemplateTypeParameterDIE - Find existing DIE or create new DIE
- /// for the given DITemplateTypeParameter.
- DIE *getOrCreateTemplateTypeParameterDIE(DITemplateTypeParameter TP);
-
- /// getOrCreateTemplateValueParameterDIE - Find existing DIE or create
- /// new DIE for the given DITemplateValueParameter.
- DIE *getOrCreateTemplateValueParameterDIE(DITemplateValueParameter TVP);
+ /// getOrCreateContextDIE - Get context owner's DIE.
+ DIE *createTypeDIE(DICompositeType Ty);
/// getOrCreateContextDIE - Get context owner's DIE.
DIE *getOrCreateContextDIE(DIScope Context);
- /// createGlobalVariableDIE - create global variable DIE.
- void createGlobalVariableDIE(const MDNode *N);
-
/// constructContainingTypeDIEs - Construct DIEs for types that contain
/// vtables.
void constructContainingTypeDIEs();
/// constructVariableDIE - Construct a DIE for the given DbgVariable.
- DIE *constructVariableDIE(DbgVariable *DV, bool isScopeAbstract);
+ DIE *constructVariableDIE(DbgVariable &DV, bool isScopeAbstract);
+
+ /// Create a DIE with the given Tag, add the DIE to its parent, and
+ /// call insertDIE if MD is not null.
+ DIE *createAndAddDIE(unsigned Tag, DIE &Parent,
+ DIDescriptor N = DIDescriptor());
+
+ /// Compute the size of a header for this unit, not including the initial
+ /// length field.
+ unsigned getHeaderSize() const {
+ return sizeof(int16_t) + // DWARF version number
+ sizeof(int32_t) + // Offset Into Abbrev. Section
+ sizeof(int8_t); // Pointer Size (in bytes)
+ }
+
+ /// Emit the header for this unit, not including the initial length field.
+ void emitHeader(const MCSection *ASection, const MCSymbol *ASectionSym);
+
+protected:
+ /// getOrCreateStaticMemberDIE - Create new static data member DIE.
+ DIE *getOrCreateStaticMemberDIE(DIDerivedType DT);
private:
/// constructTypeDIE - Construct basic type die from DIBasicType.
void constructSubrangeDIE(DIE &Buffer, DISubrange SR, DIE *IndexTy);
/// constructArrayTypeDIE - Construct array type DIE from DICompositeType.
- void constructArrayTypeDIE(DIE &Buffer, DICompositeType *CTy);
+ void constructArrayTypeDIE(DIE &Buffer, DICompositeType CTy);
/// constructEnumTypeDIE - Construct enum type DIE from DIEnumerator.
- DIE *constructEnumTypeDIE(DIEnumerator ETy);
+ void constructEnumTypeDIE(DIE &Buffer, DICompositeType CTy);
+
+ /// constructMemberDIE - Construct member DIE from DIDerivedType.
+ void constructMemberDIE(DIE &Buffer, DIDerivedType DT);
- /// createMemberDIE - Create new member DIE.
- DIE *createMemberDIE(DIDerivedType DT);
+ /// constructTemplateTypeParameterDIE - Construct new DIE for the given
+ /// DITemplateTypeParameter.
+ void constructTemplateTypeParameterDIE(DIE &Buffer,
+ DITemplateTypeParameter TP);
- /// createStaticMemberDIE - Create new static data member DIE.
- DIE *createStaticMemberDIE(DIDerivedType DT);
+ /// constructTemplateValueParameterDIE - Construct new DIE for the given
+ /// DITemplateValueParameter.
+ void constructTemplateValueParameterDIE(DIE &Buffer,
+ DITemplateValueParameter TVP);
/// getLowerBoundDefault - Return the default lower bound for an array. If the
/// DWARF version doesn't handle the language, return -1.
template <typename T> T resolve(DIRef<T> Ref) const {
return DD->resolve(Ref);
}
+
+ /// If this is a named finished type then include it in the list of types for
+ /// the accelerator tables.
+ void updateAcceleratorTables(DIScope Context, DIType Ty, const DIE *TyDIE);
+};
+
+class CompileUnit : public Unit {
+public:
+ CompileUnit(unsigned UID, DIE *D, DICompileUnit Node, AsmPrinter *A,
+ DwarfDebug *DW, DwarfUnits *DWU);
+
+ /// createGlobalVariableDIE - create global variable DIE.
+ void createGlobalVariableDIE(DIGlobalVariable GV);
+
+ /// addLabelAddress - Add a dwarf label attribute data and value using
+ /// either DW_FORM_addr or DW_FORM_GNU_addr_index.
+ void addLabelAddress(DIE *Die, dwarf::Attribute Attribute, MCSymbol *Label);
+
+ uint16_t getLanguage() const { return getNode().getLanguage(); }
};
+class TypeUnit : public Unit {
+private:
+ uint16_t Language;
+
+public:
+ TypeUnit(unsigned UID, DIE *D, uint16_t Language, AsmPrinter *A,
+ DwarfDebug *DW, DwarfUnits *DWU);
+
+ uint16_t getLanguage() const { return Language; }
+};
} // end llvm namespace
#endif
projects / oota-llvm.git / blobdiff