#define LLVM_LIB_CODEGEN_ASMPRINTER_DWARFCOMPILEUNIT_H
#include "DwarfUnit.h"
-#include "llvm/Support/Dwarf.h"
#include "llvm/ADT/StringRef.h"
#include "llvm/IR/DebugInfo.h"
+#include "llvm/Support/Dwarf.h"
namespace llvm {
/// the need to search for it in applyStmtList.
unsigned stmtListIndex;
+ /// Skeleton unit associated with this unit.
+ DwarfCompileUnit *Skeleton;
+
+ /// The start of the unit within its section.
+ MCSymbol *LabelBegin;
+
+ /// 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;
+
+ // List of range lists for a given compile unit, separate from the ranges for
+ // the CU itself.
+ SmallVector<RangeSpanList, 1> CURangeLists;
+
+ // List of ranges for a given compile unit.
+ SmallVector<RangeSpan, 2> CURanges;
+
+ // The base address of this unit, if any. Used for relative references in
+ // ranges/locs.
+ const MCSymbol *BaseAddress;
+
+ /// \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);
+
+ bool isDwoUnit() const override;
+
+ bool includeMinimalInlineScopes() const;
+
public:
DwarfCompileUnit(unsigned UID, DICompileUnit Node, AsmPrinter *A,
DwarfDebug *DW, DwarfFile *DWU);
- void initStmtList(MCSymbol *DwarfLineSectionSym);
+ DwarfCompileUnit *getSkeleton() const {
+ return Skeleton;
+ }
+
+ void initStmtList();
/// Apply the DW_AT_stmt_list from this compile unit to the specified DIE.
void applyStmtList(DIE &D);
void addLocalLabelAddress(DIE &Die, dwarf::Attribute Attribute,
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);
+
DwarfCompileUnit &getCU() override { return *this; }
unsigned getOrCreateSourceID(StringRef FileName, StringRef DirName) override;
void attachLowHighPC(DIE &D, const MCSymbol *Begin, const MCSymbol *End);
+ /// addSectionLabel - Add a Dwarf section label attribute data and value.
+ ///
+ void addSectionLabel(DIE &Die, dwarf::Attribute Attribute,
+ const MCSymbol *Label, const MCSymbol *Sec);
+
/// \brief Find DIE for the given subprogram and attach appropriate
/// DW_AT_low_pc and DW_AT_high_pc attributes. If there are global
/// variables in this scope then create and insert DIEs for these
void constructScopeDIE(LexicalScope *Scope,
SmallVectorImpl<std::unique_ptr<DIE>> &FinalChildren);
+
+ /// \brief A helper function to construct a RangeSpanList for a given
+ /// lexical scope.
+ void addScopeRangeList(DIE &ScopeDIE, SmallVector<RangeSpan, 2> Range);
+
+ void attachRangesOrLowHighPC(DIE &D, SmallVector<RangeSpan, 2> Ranges);
+
+ void attachRangesOrLowHighPC(DIE &D,
+ const SmallVectorImpl<InsnRange> &Ranges);
+ /// \brief This scope represents inlined body of a function. Construct
+ /// DIE to represent this concrete inlined copy of the function.
+ std::unique_ptr<DIE> constructInlinedScopeDIE(LexicalScope *Scope);
+
+ /// \brief Construct new DW_TAG_lexical_block for this scope and
+ /// attach DW_AT_low_pc/DW_AT_high_pc labels.
+ std::unique_ptr<DIE> constructLexicalScopeDIE(LexicalScope *Scope);
+
+ /// constructVariableDIE - Construct a DIE for the given DbgVariable.
+ std::unique_ptr<DIE> constructVariableDIE(DbgVariable &DV,
+ bool Abstract = false);
+
+ std::unique_ptr<DIE> constructVariableDIE(DbgVariable &DV,
+ const LexicalScope &Scope,
+ DIE *&ObjectPointer);
+
+ /// A helper function to create children of a Scope DIE.
+ DIE *createScopeChildrenDIE(LexicalScope *Scope,
+ SmallVectorImpl<std::unique_ptr<DIE>> &Children,
+ unsigned *ChildScopeCount = nullptr);
+
+ /// \brief Construct a DIE for this subprogram scope.
+ void constructSubprogramScopeDIE(LexicalScope *Scope);
+
+ DIE *createAndAddScopeChildren(LexicalScope *Scope, DIE &ScopeDIE);
+
+ void constructAbstractSubprogramScopeDIE(LexicalScope *Scope);
+
+ /// \brief Construct import_module DIE.
+ std::unique_ptr<DIE>
+ constructImportedEntityDIE(const DIImportedEntity &Module);
+
+ void finishSubprogramDefinition(DISubprogram SP);
+
+ void collectDeadVariables(DISubprogram SP);
+
+ /// Set the skeleton unit associated with this unit.
+ void setSkeleton(DwarfCompileUnit &Skel) { Skeleton = &Skel; }
+
+ const MCSymbol *getSectionSym() const {
+ assert(Section);
+ return Section->getBeginSymbol();
+ }
+
+ unsigned getLength() {
+ return sizeof(uint32_t) + // Length field
+ getHeaderSize() + UnitDie.getSize();
+ }
+
+ void emitHeader(bool UseOffsets) override;
+
+ MCSymbol *getLabelBegin() const {
+ assert(Section);
+ return LabelBegin;
+ }
+
+ /// Add a new global name to the compile unit.
+ void addGlobalName(StringRef Name, DIE &Die, const MDScope *Context) override;
+
+ /// Add a new global type to the compile unit.
+ void addGlobalType(const MDType *Ty, const DIE &Die,
+ const MDScope *Context) override;
+
+ const StringMap<const DIE *> &getGlobalNames() const { return GlobalNames; }
+ const StringMap<const DIE *> &getGlobalTypes() const { return GlobalTypes; }
+
+ /// Add DW_AT_location attribute for a DbgVariable based on provided
+ /// MachineLocation.
+ void addVariableAddress(const DbgVariable &DV, DIE &Die,
+ MachineLocation Location);
+ /// Add an address attribute to a die based on the location provided.
+ void addAddress(DIE &Die, dwarf::Attribute Attribute,
+ const MachineLocation &Location);
+
+ /// 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);
+
+ /// Add a Dwarf loclistptr attribute data and value.
+ void addLocationList(DIE &Die, dwarf::Attribute Attribute, unsigned Index);
+ void applyVariableAttributes(const DbgVariable &Var, DIE &VariableDie);
+
+ /// Add a Dwarf expression attribute data and value.
+ void addExpr(DIELoc &Die, dwarf::Form Form, const MCExpr *Expr);
+
+ void applySubprogramAttributesToDefinition(DISubprogram SP, DIE &SPDie);
+
+ /// getRangeLists - Get the vector of range lists.
+ const SmallVectorImpl<RangeSpanList> &getRangeLists() const {
+ return (Skeleton ? Skeleton : this)->CURangeLists;
+ }
+
+ /// getRanges - Get the list of ranges for this unit.
+ const SmallVectorImpl<RangeSpan> &getRanges() const { return CURanges; }
+ SmallVector<RangeSpan, 2> takeRanges() { return std::move(CURanges); }
+
+ void setBaseAddress(const MCSymbol *Base) { BaseAddress = Base; }
+ const MCSymbol *getBaseAddress() const { return BaseAddress; }
};
} // end llvm namespace
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