diff options
Diffstat (limited to 'contrib/llvm/lib/CodeGen/AsmPrinter/DwarfUnit.h')
| -rw-r--r-- | contrib/llvm/lib/CodeGen/AsmPrinter/DwarfUnit.h | 243 |
1 files changed, 45 insertions, 198 deletions
diff --git a/contrib/llvm/lib/CodeGen/AsmPrinter/DwarfUnit.h b/contrib/llvm/lib/CodeGen/AsmPrinter/DwarfUnit.h index b7b83b2..7a5e47d 100644 --- a/contrib/llvm/lib/CodeGen/AsmPrinter/DwarfUnit.h +++ b/contrib/llvm/lib/CodeGen/AsmPrinter/DwarfUnit.h @@ -11,20 +11,20 @@ // //===----------------------------------------------------------------------===// -#ifndef CODEGEN_ASMPRINTER_DWARFCOMPILEUNIT_H -#define CODEGEN_ASMPRINTER_DWARFCOMPILEUNIT_H +#ifndef LLVM_LIB_CODEGEN_ASMPRINTER_DWARFUNIT_H +#define LLVM_LIB_CODEGEN_ASMPRINTER_DWARFUNIT_H -#include "DIE.h" #include "DwarfDebug.h" #include "llvm/ADT/DenseMap.h" #include "llvm/ADT/Optional.h" #include "llvm/ADT/StringMap.h" #include "llvm/CodeGen/AsmPrinter.h" +#include "llvm/CodeGen/DIE.h" #include "llvm/IR/DIBuilder.h" #include "llvm/IR/DebugInfo.h" +#include "llvm/MC/MCDwarf.h" #include "llvm/MC/MCExpr.h" #include "llvm/MC/MCSection.h" -#include "llvm/MC/MCDwarf.h" namespace llvm { @@ -55,7 +55,8 @@ private: SmallVector<RangeSpan, 2> Ranges; public: - RangeSpanList(MCSymbol *Sym) : RangeSym(Sym) {} + RangeSpanList(MCSymbol *Sym, SmallVector<RangeSpan, 2> Ranges) + : RangeSym(Sym), Ranges(std::move(Ranges)) {} MCSymbol *getSym() const { return RangeSym; } const SmallVectorImpl<RangeSpan> &getRanges() const { return Ranges; } void addRange(RangeSpan Range) { Ranges.push_back(Range); } @@ -96,12 +97,6 @@ protected: /// descriptors to debug information entries using a DIEEntry proxy. DenseMap<const MDNode *, DIEEntry *> MDNodeToDIEEntryMap; - /// GlobalNames - A map of globally visible named entities for this unit. - StringMap<const DIE *> GlobalNames; - - /// GlobalTypes - A map of globally visible types for this unit. - StringMap<const DIE *> GlobalTypes; - /// DIEBlocks - A list of all the DIEBlocks in use. std::vector<DIEBlock *> DIEBlocks; @@ -113,13 +108,6 @@ protected: /// corresponds to the MDNode mapped with the subprogram DIE. DenseMap<DIE *, const MDNode *> ContainingTypeMap; - // List of ranges for a given compile unit. - SmallVector<RangeSpan, 1> CURanges; - - // List of range lists for a given compile unit, separate from the ranges for - // the CU itself. - SmallVector<RangeSpanList, 1> CURangeLists; - // DIEValueAllocator - All DIEValues are allocated through this allocator. BumpPtrAllocator DIEValueAllocator; @@ -129,86 +117,32 @@ protected: /// The section this unit will be emitted in. const MCSection *Section; - /// A label at the start of the non-dwo section related to this unit. - MCSymbol *SectionSym; + DwarfUnit(unsigned UID, dwarf::Tag, DICompileUnit CU, AsmPrinter *A, + DwarfDebug *DW, DwarfFile *DWU); - /// The start of the unit within its section. - MCSymbol *LabelBegin; + void initSection(const MCSection *Section); - /// The end of the unit within its section. - MCSymbol *LabelEnd; + /// Add a string attribute data and value. + void addLocalString(DIE &Die, dwarf::Attribute Attribute, StringRef Str); - /// Skeleton unit associated with this unit. - DwarfUnit *Skeleton; + void addIndexedString(DIE &Die, dwarf::Attribute Attribute, StringRef Str); - DwarfUnit(unsigned UID, dwarf::Tag, DICompileUnit CU, AsmPrinter *A, - DwarfDebug *DW, DwarfFile *DWU); + bool applySubprogramDefinitionAttributes(DISubprogram SP, DIE &SPDie); public: virtual ~DwarfUnit(); - /// Set the skeleton unit associated with this unit. - void setSkeleton(DwarfUnit &Skel) { Skeleton = &Skel; } - - /// Get the skeleton unit associated with this unit. - DwarfUnit *getSkeleton() const { return Skeleton; } - - /// Pass in the SectionSym even though we could recreate it in every compile - /// unit (type units will have actually distinct symbols once they're in - /// comdat sections). - void initSection(const MCSection *Section, MCSymbol *SectionSym) { - assert(!this->Section); - this->Section = Section; - this->SectionSym = SectionSym; - this->LabelBegin = - Asm->GetTempSymbol(Section->getLabelBeginName(), getUniqueID()); - this->LabelEnd = - Asm->GetTempSymbol(Section->getLabelEndName(), getUniqueID()); - } - const MCSection *getSection() const { assert(Section); return Section; } - /// If there's a skeleton then return the section symbol for the skeleton - /// unit, otherwise return the section symbol for this unit. - MCSymbol *getLocalSectionSym() const { - if (Skeleton) - return Skeleton->getSectionSym(); - return getSectionSym(); - } - - MCSymbol *getSectionSym() const { - assert(Section); - return SectionSym; - } - - /// If there's a skeleton then return the begin label for the skeleton unit, - /// otherwise return the local label for this unit. - MCSymbol *getLocalLabelBegin() const { - if (Skeleton) - return Skeleton->getLabelBegin(); - return getLabelBegin(); - } - - MCSymbol *getLabelBegin() const { - assert(Section); - return LabelBegin; - } - - MCSymbol *getLabelEnd() const { - assert(Section); - return LabelEnd; - } - // Accessors. + AsmPrinter* getAsmPrinter() const { return Asm; } unsigned getUniqueID() const { return UniqueID; } uint16_t getLanguage() const { return CUNode.getLanguage(); } DICompileUnit getCUNode() const { return CUNode; } DIE &getUnitDie() { return UnitDie; } - const StringMap<const DIE *> &getGlobalNames() const { return GlobalNames; } - const StringMap<const DIE *> &getGlobalTypes() const { return GlobalTypes; } unsigned getDebugInfoOffset() const { return DebugInfoOffset; } void setDebugInfoOffset(unsigned DbgInfoOff) { DebugInfoOffset = DbgInfoOff; } @@ -216,29 +150,15 @@ public: /// hasContent - Return true if this compile unit has something to write out. bool hasContent() const { return !UnitDie.getChildren().empty(); } - /// addRange - Add an address range to the list of ranges for this unit. - void addRange(RangeSpan Range); - - /// getRanges - Get the list of ranges for this unit. - const SmallVectorImpl<RangeSpan> &getRanges() const { return CURanges; } - SmallVectorImpl<RangeSpan> &getRanges() { return CURanges; } - - /// addRangeList - Add an address range list to the list of range lists. - void addRangeList(RangeSpanList Ranges) { CURangeLists.push_back(Ranges); } - - /// getRangeLists - Get the vector of range lists. - const SmallVectorImpl<RangeSpanList> &getRangeLists() const { - return CURangeLists; - } - SmallVectorImpl<RangeSpanList> &getRangeLists() { return CURangeLists; } - /// 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, DIScope Context); + /// Add a new global name to the compile unit. + virtual void addGlobalName(StringRef Name, DIE &Die, DIScope Context) {} + + /// Add a new global type to the compile unit. + virtual void addGlobalType(DIType Ty, const DIE &Die, DIScope Context) {} /// addAccelNamespace - Add a new name to the namespace accelerator table. void addAccelNamespace(StringRef Name, const DIE &Die); @@ -275,14 +195,7 @@ public: void addSInt(DIELoc &Die, Optional<dwarf::Form> Form, int64_t Integer); /// addString - Add a string attribute data and value. - void addString(DIE &Die, dwarf::Attribute Attribute, const StringRef Str); - - /// addLocalString - Add a string attribute data and value. - void addLocalString(DIE &Die, dwarf::Attribute Attribute, - const StringRef Str); - - /// addExpr - Add a Dwarf expression attribute data and value. - void addExpr(DIELoc &Die, dwarf::Form Form, const MCExpr *Expr); + void addString(DIE &Die, dwarf::Attribute Attribute, StringRef Str); /// addLabel - Add a Dwarf label attribute data and value. void addLabel(DIE &Die, dwarf::Attribute Attribute, dwarf::Form Form, @@ -290,14 +203,6 @@ public: void addLabel(DIELoc &Die, dwarf::Form Form, const MCSymbol *Label); - /// addLocationList - Add a Dwarf loclistptr attribute data and value. - void addLocationList(DIE &Die, dwarf::Attribute Attribute, unsigned Index); - - /// 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 addSectionOffset(DIE &Die, dwarf::Attribute Attribute, uint64_t Integer); @@ -306,10 +211,6 @@ public: /// form given and an op of either DW_FORM_addr or DW_FORM_GNU_addr_index. void addOpAddress(DIELoc &Die, const MCSymbol *Label); - /// addSectionDelta - Add a label delta attribute data and value. - void addSectionDelta(DIE &Die, dwarf::Attribute Attribute, const MCSymbol *Hi, - const MCSymbol *Lo); - /// addLabelDelta - Add a label delta attribute data and value. void addLabelDelta(DIE &Die, dwarf::Attribute Attribute, const MCSymbol *Hi, const MCSymbol *Lo); @@ -339,11 +240,6 @@ public: void addSourceLine(DIE &Die, DINameSpace NS); void addSourceLine(DIE &Die, DIObjCProperty Ty); - /// addAddress - Add an address attribute to a die based on the location - /// provided. - 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 addConstantValue(DIE &Die, const ConstantInt *CI, DIType Ty); @@ -358,19 +254,16 @@ public: /// addTemplateParams - Add template parameters in buffer. void addTemplateParams(DIE &Buffer, DIArray TParams); - /// addRegisterOp - Add register operand. - void addRegisterOp(DIELoc &TheDie, unsigned Reg); + /// \brief Add register operand. + /// \returns false if the register does not exist, e.g., because it was never + /// materialized. + bool addRegisterOpPiece(DIELoc &TheDie, unsigned Reg, + unsigned SizeInBits = 0, unsigned OffsetInBits = 0); - /// addRegisterOffset - Add register offset. - void addRegisterOffset(DIELoc &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, - dwarf::Attribute Attribute, - const MachineLocation &Location); + /// \brief Add register offset. + /// \returns false if the register does not exist, e.g., because it was never + /// materialized. + bool addRegisterOffset(DIELoc &TheDie, unsigned Reg, int64_t Offset); // FIXME: Should be reformulated in terms of addComplexAddress. /// addBlockByrefAddress - Start with the address based on the location @@ -382,11 +275,6 @@ public: dwarf::Attribute Attribute, const MachineLocation &Location); - /// addVariableAddress - Add DW_AT_location attribute for a - /// DbgVariable based on provided MachineLocation. - void addVariableAddress(const DbgVariable &DV, DIE &Die, - MachineLocation Location); - /// addType - Add a new type attribute to the specified entity. This takes /// and attribute parameter because DW_AT_friend attributes are also /// type references. @@ -397,11 +285,10 @@ public: DIE *getOrCreateNameSpace(DINameSpace NS); /// getOrCreateSubprogramDIE - Create new DIE using SP. - DIE *getOrCreateSubprogramDIE(DISubprogram SP); + DIE *getOrCreateSubprogramDIE(DISubprogram SP, bool Minimal = false); - void applySubprogramAttributes(DISubprogram SP, DIE &SPDie); - void applySubprogramAttributesToDefinition(DISubprogram SP, DIE &SPDie); - void applyVariableAttributes(const DbgVariable &Var, DIE &VariableDie); + void applySubprogramAttributes(DISubprogram SP, DIE &SPDie, + bool Minimal = false); /// getOrCreateTypeDIE - Find existing DIE or create new DIE for the /// given DIType. @@ -417,12 +304,8 @@ public: /// vtables. void constructContainingTypeDIEs(); - /// constructVariableDIE - Construct a DIE for the given DbgVariable. - std::unique_ptr<DIE> constructVariableDIE(DbgVariable &DV, - bool Abstract = false); - /// constructSubprogramArguments - Construct function argument DIEs. - void constructSubprogramArguments(DIE &Buffer, DIArray Args); + void constructSubprogramArguments(DIE &Buffer, DITypeArray Args); /// Create a DIE with the given Tag, add the DIE to its parent, and /// call insertDIE if MD is not null. @@ -453,12 +336,13 @@ protected: /// none currently exists, create a new ID and insert it in the line table. virtual unsigned getOrCreateSourceID(StringRef File, StringRef Directory) = 0; -private: - /// \brief Construct a DIE for the given DbgVariable without initializing the - /// DbgVariable's DIE reference. - std::unique_ptr<DIE> constructVariableDIEImpl(const DbgVariable &DV, - bool Abstract); + /// 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); + } +private: /// constructTypeDIE - Construct basic type die from DIBasicType. void constructTypeDIE(DIE &Buffer, DIBasicType BTy); @@ -503,7 +387,7 @@ private: } // getIndexTyDie - Get an anonymous type for index type. - DIE *getIndexTyDie() { return IndexTyDie; } + DIE *getIndexTyDie(); // setIndexTyDie - Set D as anonymous type for index which can be reused // later. @@ -513,56 +397,22 @@ private: /// 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); - } - /// 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 DwarfCompileUnit : public DwarfUnit { - /// The attribute index of DW_AT_stmt_list in the compile unit DIE, avoiding - /// the need to search for it in applyStmtList. - unsigned stmtListIndex; - -public: - DwarfCompileUnit(unsigned UID, DICompileUnit Node, AsmPrinter *A, - DwarfDebug *DW, DwarfFile *DWU); - - void initStmtList(MCSymbol *DwarfLineSectionSym); - - /// Apply the DW_AT_stmt_list from this compile unit to the specified DIE. - void applyStmtList(DIE &D); - - /// 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, - const MCSymbol *Label); - /// addLocalLabelAddress - Add a dwarf label attribute data and value using - /// DW_FORM_addr only. - void addLocalLabelAddress(DIE &Die, dwarf::Attribute Attribute, - const MCSymbol *Label); - - DwarfCompileUnit &getCU() override { return *this; } - - unsigned getOrCreateSourceID(StringRef FileName, StringRef DirName) override; + virtual bool isDwoUnit() const = 0; }; class DwarfTypeUnit : public DwarfUnit { -private: uint64_t TypeSignature; const DIE *Ty; DwarfCompileUnit &CU; MCDwarfDwoLineTable *SplitLineTable; + unsigned getOrCreateSourceID(StringRef File, StringRef Directory) override; + bool isDwoUnit() const override; + public: DwarfTypeUnit(unsigned UID, DwarfCompileUnit &CU, AsmPrinter *A, DwarfDebug *DW, DwarfFile *DWU, @@ -578,11 +428,8 @@ public: return DwarfUnit::getHeaderSize() + sizeof(uint64_t) + // Type Signature sizeof(uint32_t); // Type DIE Offset } - void initSection(const MCSection *Section); + using DwarfUnit::initSection; DwarfCompileUnit &getCU() override { return CU; } - -protected: - unsigned getOrCreateSourceID(StringRef File, StringRef Directory) override; }; } // end llvm namespace #endif |
