diff options
Diffstat (limited to 'lib/CodeGen/AsmPrinter/DwarfCompileUnit.h')
| -rw-r--r-- | lib/CodeGen/AsmPrinter/DwarfCompileUnit.h | 304 |
1 files changed, 163 insertions, 141 deletions
diff --git a/lib/CodeGen/AsmPrinter/DwarfCompileUnit.h b/lib/CodeGen/AsmPrinter/DwarfCompileUnit.h index 3908b37..d782c88 100644 --- a/lib/CodeGen/AsmPrinter/DwarfCompileUnit.h +++ b/lib/CodeGen/AsmPrinter/DwarfCompileUnit.h @@ -15,7 +15,9 @@ #define CODEGEN_ASMPRINTER_DWARFCOMPILEUNIT_H #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" @@ -23,8 +25,6 @@ namespace llvm { -class DwarfDebug; -class DwarfUnits; class MachineLocation; class MachineOperand; class ConstantInt; @@ -39,11 +39,10 @@ class CompileUnit { /// unsigned UniqueID; - /// Language - The DW_AT_language of the compile unit - /// - unsigned Language; + /// Node - MDNode for the compile unit. + DICompileUnit Node; - /// Die - Compile unit debug information entry. + /// CUDie - Compile unit debug information entry. /// const OwningPtr<DIE> CUDie; @@ -67,18 +66,18 @@ class CompileUnit { /// GlobalNames - A map of globally visible named entities for this unit. /// - StringMap<DIE*> GlobalNames; + StringMap<DIE *> GlobalNames; /// GlobalTypes - A map of globally visible types for this unit. /// - StringMap<DIE*> GlobalTypes; + StringMap<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<DIE *> > AccelNames; + StringMap<std::vector<DIE *> > AccelObjC; + StringMap<std::vector<DIE *> > AccelNamespace; + StringMap<std::vector<std::pair<DIE *, unsigned> > > AccelTypes; /// DIEBlocks - A list of all the DIEBlocks in use. std::vector<DIEBlock *> DIEBlocks; @@ -88,165 +87,154 @@ class CompileUnit { /// corresponds to the MDNode mapped with the subprogram DIE. DenseMap<DIE *, const MDNode *> ContainingTypeMap; - /// Offset of the CUDie from beginning of debug info section. - unsigned DebugInfoOffset; + // DIEValueAllocator - All DIEValues are allocated through this allocator. + BumpPtrAllocator DIEValueAllocator; - /// getLowerBoundDefault - Return the default lower bound for an array. If the - /// DWARF version doesn't handle the language, return -1. - int64_t getDefaultLowerBound() const; + // DIEIntegerOne - A preallocated DIEValue because 1 is used frequently. + DIEInteger *DIEIntegerOne; public: - CompileUnit(unsigned UID, unsigned L, DIE *D, const MDNode *N, AsmPrinter *A, + CompileUnit(unsigned UID, DIE *D, DICompileUnit CU, AsmPrinter *A, DwarfDebug *DW, DwarfUnits *DWU); ~CompileUnit(); // Accessors. - unsigned getUniqueID() const { return UniqueID; } - unsigned getLanguage() const { return Language; } - DIE* getCUDie() const { return CUDie.get(); } - unsigned getDebugInfoOffset() const { return DebugInfoOffset; } - const StringMap<DIE*> &getGlobalNames() const { return GlobalNames; } - const StringMap<DIE*> &getGlobalTypes() const { return GlobalTypes; } - - const StringMap<std::vector<DIE*> > &getAccelNames() const { + unsigned getUniqueID() const { return UniqueID; } + uint16_t getLanguage() const { return Node.getLanguage(); } + 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<std::vector<DIE *> > &getAccelNames() const { return AccelNames; } - const StringMap<std::vector<DIE*> > &getAccelObjC() const { + const StringMap<std::vector<DIE *> > &getAccelObjC() const { return AccelObjC; } - const StringMap<std::vector<DIE*> > &getAccelNamespace() const { + const StringMap<std::vector<DIE *> > &getAccelNamespace() const { return AccelNamespace; } - const StringMap<std::vector<std::pair<DIE*, unsigned > > > - &getAccelTypes() const { + const StringMap<std::vector<std::pair<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(); } + /// getParentContextString - Get a string containing the language specific + /// context for a global name. + std::string getParentContextString(DIScope Context) const; + /// addGlobalName - Add a new global entity to the compile unit. /// - void addGlobalName(StringRef Name, DIE *Die) { GlobalNames[Name] = Die; } + void addGlobalName(StringRef Name, DIE *Die, DIScope Context); /// addGlobalType - Add a new global type 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); /// addAccelName - Add a new name to the name accelerator table. - void addAccelName(StringRef Name, DIE *Die) { - std::vector<DIE*> &DIEs = AccelNames[Name]; - DIEs.push_back(Die); - } - void addAccelObjC(StringRef Name, DIE *Die) { - std::vector<DIE*> &DIEs = AccelObjC[Name]; - DIEs.push_back(Die); - } - void addAccelNamespace(StringRef Name, DIE *Die) { - std::vector<DIE*> &DIEs = AccelNamespace[Name]; - DIEs.push_back(Die); - } - void addAccelType(StringRef Name, std::pair<DIE *, unsigned> Die) { - std::vector<std::pair<DIE *, unsigned> > &DIEs = AccelTypes[Name]; - DIEs.push_back(Die); - } + void addAccelName(StringRef Name, DIE *Die); - /// getDIE - Returns the debug information entry map slot for the - /// specified debug variable. - DIE *getDIE(const MDNode *N) const { return MDNodeToDieMap.lookup(N); } + /// addAccelObjC - Add a new name to the ObjC accelerator table. + void addAccelObjC(StringRef Name, DIE *Die); - DIEBlock *getDIEBlock() { - return new (DIEValueAllocator) DIEBlock(); - } + /// addAccelNamespace - Add a new name to the namespace accelerator table. + void addAccelNamespace(StringRef Name, DIE *Die); - /// insertDIE - Insert DIE into the map. - void insertDIE(const MDNode *N, DIE *D) { - MDNodeToDieMap.insert(std::make_pair(N, D)); - } + /// addAccelType - Add a new type to the type accelerator table. + void addAccelType(StringRef Name, std::pair<DIE *, unsigned> Die); - /// getDIEEntry - Returns the debug information entry for the specified - /// debug variable. - DIEEntry *getDIEEntry(const MDNode *N) const { - return MDNodeToDIEEntryMap.lookup(N); - } + /// getDIE - Returns the debug information entry map slot for the + /// 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; - /// insertDIEEntry - Insert debug information entry into the map. - void insertDIEEntry(const MDNode *N, DIEEntry *E) { - MDNodeToDIEEntryMap.insert(std::make_pair(N, E)); - } + DIEBlock *getDIEBlock() { return new (DIEValueAllocator) DIEBlock(); } + + /// 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) { - this->CUDie->addChild(Buffer); - } - - // getIndexTyDie - Get an anonymous type for index type. - DIE *getIndexTyDie() { - return IndexTyDie; - } - - // setIndexTyDie - Set D as anonymous type for index which can be reused - // later. - void setIndexTyDie(DIE *D) { - IndexTyDie = D; - } + void addDie(DIE *Buffer) { CUDie->addChild(Buffer); } /// addFlag - Add a flag that is true to the DIE. - void addFlag(DIE *Die, unsigned Attribute); + void addFlag(DIE *Die, dwarf::Attribute Attribute); /// addUInt - Add an unsigned integer attribute data and value. /// - void addUInt(DIE *Die, unsigned Attribute, unsigned 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, unsigned Attribute, unsigned 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, unsigned 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, unsigned 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, unsigned Attribute, unsigned 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, unsigned Attribute, unsigned Form, + void addLabel(DIE *Die, dwarf::Attribute Attribute, dwarf::Form Form, const MCSymbol *Label); + void addLabel(DIEBlock *Die, 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 addLabelAddress(DIE *Die, unsigned Attribute, MCSymbol *Label); + void addLabelAddress(DIE *Die, dwarf::Attribute Attribute, MCSymbol *Label); /// 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, unsigned Attribute, unsigned Form, - const MCSymbol *Hi, const MCSymbol *Lo); + void addDelta(DIE *Die, dwarf::Attribute Attribute, dwarf::Form Form, const MCSymbol *Hi, + const MCSymbol *Lo); /// addDIEEntry - Add a DIE attribute data and value. /// - void addDIEEntry(DIE *Die, unsigned Attribute, unsigned 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, unsigned Attribute, unsigned Form, DIEBlock *Block); + void addBlock(DIE *Die, dwarf::Attribute Attribute, DIEBlock *Block); /// addSourceLine - Add location information to specified debug information /// entry. @@ -259,8 +247,8 @@ public: /// addAddress - Add an address attribute to a die based on the location /// provided. - void addAddress(DIE *Die, unsigned 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); @@ -275,17 +263,17 @@ public: 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, unsigned Attribute, + void addComplexAddress(const DbgVariable &DV, DIE *Die, dwarf::Attribute Attribute, const MachineLocation &Location); // FIXME: Should be reformulated in terms of addComplexAddress. @@ -295,7 +283,7 @@ public: /// starting location. Add the DWARF information to the die. Obsolete, /// please use addComplexAddress instead. /// - void addBlockByrefAddress(const DbgVariable &DV, DIE *Die, unsigned Attribute, + void addBlockByrefAddress(const DbgVariable &DV, DIE *Die, dwarf::Attribute Attribute, const MachineLocation &Location); /// addVariableAddress - Add DW_AT_location attribute for a @@ -303,13 +291,10 @@ public: 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, DIDescriptor 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, unsigned 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); @@ -321,66 +306,103 @@ public: /// given DIType. DIE *getOrCreateTypeDIE(const MDNode *N); - /// getOrCreateTemplateTypeParameterDIE - Find existing DIE or create new DIE - /// for the given DITemplateTypeParameter. - DIE *getOrCreateTemplateTypeParameterDIE(DITemplateTypeParameter TP); + /// getOrCreateContextDIE - Get context owner's DIE. + DIE *getOrCreateContextDIE(DIScope Context); - /// getOrCreateTemplateValueParameterDIE - Find existing DIE or create - /// new DIE for the given DITemplateValueParameter. - DIE *getOrCreateTemplateValueParameterDIE(DITemplateValueParameter TVP); + /// createGlobalVariableDIE - create global variable DIE. + void createGlobalVariableDIE(DIGlobalVariable GV); - /// createDIEEntry - Creates a new DIEEntry to be a proxy for a debug - /// information entry. - DIEEntry *createDIEEntry(DIE *Entry); + /// constructContainingTypeDIEs - Construct DIEs for types that contain + /// vtables. + void constructContainingTypeDIEs(); - /// createGlobalVariableDIE - create global variable DIE. - void createGlobalVariableDIE(const MDNode *N); + /// constructVariableDIE - Construct a DIE for the given DbgVariable. + 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) + } - void addPubTypes(DISubprogram SP); + /// Emit the header for this unit, not including the initial length field. + void emitHeader(const MCSection *ASection, const MCSymbol *ASectionSym); +private: /// constructTypeDIE - Construct basic type die from DIBasicType. - void constructTypeDIE(DIE &Buffer, - DIBasicType BTy); + void constructTypeDIE(DIE &Buffer, DIBasicType BTy); /// constructTypeDIE - Construct derived type die from DIDerivedType. - void constructTypeDIE(DIE &Buffer, - DIDerivedType DTy); + void constructTypeDIE(DIE &Buffer, DIDerivedType DTy); /// constructTypeDIE - Construct type DIE from DICompositeType. - void constructTypeDIE(DIE &Buffer, - DICompositeType CTy); + void constructTypeDIE(DIE &Buffer, DICompositeType CTy); /// constructSubrangeDIE - Construct subrange DIE from DISubrange. 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); - /// constructContainingTypeDIEs - Construct DIEs for types that contain - /// vtables. - void constructContainingTypeDIEs(); + /// constructMemberDIE - Construct member DIE from DIDerivedType. + void constructMemberDIE(DIE &Buffer, DIDerivedType DT); - /// constructVariableDIE - Construct a DIE for the given DbgVariable. - DIE *constructVariableDIE(DbgVariable *DV, bool isScopeAbstract); + /// constructTemplateTypeParameterDIE - Construct new DIE for the given + /// DITemplateTypeParameter. + void constructTemplateTypeParameterDIE(DIE &Buffer, + DITemplateTypeParameter TP); - /// createMemberDIE - Create new member DIE. - DIE *createMemberDIE(DIDerivedType DT); + /// constructTemplateValueParameterDIE - Construct new DIE for the given + /// DITemplateValueParameter. + void constructTemplateValueParameterDIE(DIE &Buffer, + DITemplateValueParameter TVP); - /// createStaticMemberDIE - Create new static data member DIE. - DIE *createStaticMemberDIE(DIDerivedType DT); + /// getOrCreateStaticMemberDIE - Create new static data member DIE. + DIE *getOrCreateStaticMemberDIE(DIDerivedType DT); - /// getOrCreateContextDIE - Get context owner's DIE. - DIE *getOrCreateContextDIE(DIDescriptor Context); + /// Offset of the CUDie from beginning of debug info section. + unsigned DebugInfoOffset; -private: + /// getLowerBoundDefault - Return the default lower bound for an array. If the + /// DWARF version doesn't handle the language, return -1. + int64_t getDefaultLowerBound() const; - // DIEValueAllocator - All DIEValues are allocated through this allocator. - BumpPtrAllocator DIEValueAllocator; - DIEInteger *DIEIntegerOne; + /// getDIEEntry - Returns the debug information entry for the specified + /// debug variable. + DIEEntry *getDIEEntry(const MDNode *N) const { + return MDNodeToDIEEntryMap.lookup(N); + } + + /// insertDIEEntry - Insert debug information entry into the map. + void insertDIEEntry(const MDNode *N, DIEEntry *E) { + MDNodeToDIEEntryMap.insert(std::make_pair(N, E)); + } + + // getIndexTyDie - Get an anonymous type for index type. + DIE *getIndexTyDie() { return IndexTyDie; } + + // setIndexTyDie - Set D as anonymous type for index which can be reused + // later. + void setIndexTyDie(DIE *D) { IndexTyDie = D; } + + /// createDIEEntry - Creates a new DIEEntry to be a proxy for a debug + /// information entry. + DIEEntry *createDIEEntry(DIE *Entry); + + /// resolve - Look in the DwarfDebug map for the MDNode that + /// corresponds to the reference. + template <typename T> T resolve(DIRef<T> Ref) const { + return DD->resolve(Ref); + } }; } // end llvm namespace |