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Diffstat (limited to 'gnu/llvm/lib/CodeGen/AsmPrinter/DwarfCompileUnit.h')
| -rw-r--r-- | gnu/llvm/lib/CodeGen/AsmPrinter/DwarfCompileUnit.h | 321 |
1 files changed, 0 insertions, 321 deletions
diff --git a/gnu/llvm/lib/CodeGen/AsmPrinter/DwarfCompileUnit.h b/gnu/llvm/lib/CodeGen/AsmPrinter/DwarfCompileUnit.h deleted file mode 100644 index 9ec22f68c12..00000000000 --- a/gnu/llvm/lib/CodeGen/AsmPrinter/DwarfCompileUnit.h +++ /dev/null @@ -1,321 +0,0 @@ -//===- llvm/CodeGen/DwarfCompileUnit.h - Dwarf Compile Unit -----*- C++ -*-===// -// -// The LLVM Compiler Infrastructure -// -// This file is distributed under the University of Illinois Open Source -// License. See LICENSE.TXT for details. -// -//===----------------------------------------------------------------------===// -// -// This file contains support for writing dwarf compile unit. -// -//===----------------------------------------------------------------------===// - -#ifndef LLVM_LIB_CODEGEN_ASMPRINTER_DWARFCOMPILEUNIT_H -#define LLVM_LIB_CODEGEN_ASMPRINTER_DWARFCOMPILEUNIT_H - -#include "DwarfDebug.h" -#include "DwarfUnit.h" -#include "llvm/ADT/ArrayRef.h" -#include "llvm/ADT/DenseMap.h" -#include "llvm/ADT/SmallVector.h" -#include "llvm/ADT/StringMap.h" -#include "llvm/ADT/StringRef.h" -#include "llvm/BinaryFormat/Dwarf.h" -#include "llvm/CodeGen/DbgEntityHistoryCalculator.h" -#include "llvm/CodeGen/DIE.h" -#include "llvm/CodeGen/LexicalScopes.h" -#include "llvm/IR/DebugInfoMetadata.h" -#include "llvm/Support/Casting.h" -#include <algorithm> -#include <cassert> -#include <cstdint> -#include <memory> - -namespace llvm { - -class AsmPrinter; -class DwarfFile; -class GlobalVariable; -class MCExpr; -class MCSymbol; -class MDNode; - -class DwarfCompileUnit final : public DwarfUnit { - /// A numeric ID unique among all CUs in the module - unsigned UniqueID; - bool HasRangeLists = false; - - /// The attribute index of DW_AT_stmt_list in the compile unit DIE, avoiding - /// the need to search for it in applyStmtList. - DIE::value_iterator StmtListValue; - - /// Skeleton unit associated with this unit. - DwarfCompileUnit *Skeleton = nullptr; - - /// The start of the unit within its section. - MCSymbol *LabelBegin; - - /// The start of the unit macro info within macro section. - MCSymbol *MacroLabelBegin; - - using ImportedEntityList = SmallVector<const MDNode *, 8>; - using ImportedEntityMap = DenseMap<const MDNode *, ImportedEntityList>; - - ImportedEntityMap ImportedEntities; - - /// 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 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 = nullptr; - - DenseMap<const MDNode *, DIE *> AbstractSPDies; - DenseMap<const DINode *, std::unique_ptr<DbgEntity>> AbstractEntities; - - /// DWO ID for correlating skeleton and split units. - uint64_t DWOId = 0; - - /// Construct a DIE for the given DbgVariable without initializing the - /// DbgVariable's DIE reference. - DIE *constructVariableDIEImpl(const DbgVariable &DV, bool Abstract); - - bool isDwoUnit() const override; - - DenseMap<const MDNode *, DIE *> &getAbstractSPDies() { - if (isDwoUnit() && !DD->shareAcrossDWOCUs()) - return AbstractSPDies; - return DU->getAbstractSPDies(); - } - - DenseMap<const DINode *, std::unique_ptr<DbgEntity>> &getAbstractEntities() { - if (isDwoUnit() && !DD->shareAcrossDWOCUs()) - return AbstractEntities; - return DU->getAbstractEntities(); - } - -public: - DwarfCompileUnit(unsigned UID, const DICompileUnit *Node, AsmPrinter *A, - DwarfDebug *DW, DwarfFile *DWU); - - bool hasRangeLists() const { return HasRangeLists; } - unsigned getUniqueID() const { return UniqueID; } - - DwarfCompileUnit *getSkeleton() const { - return Skeleton; - } - - bool includeMinimalInlineScopes() const; - - void initStmtList(); - - /// Apply the DW_AT_stmt_list from this compile unit to the specified DIE. - void applyStmtList(DIE &D); - - /// A pair of GlobalVariable and DIExpression. - struct GlobalExpr { - const GlobalVariable *Var; - const DIExpression *Expr; - }; - - /// Get or create global variable DIE. - DIE * - getOrCreateGlobalVariableDIE(const DIGlobalVariable *GV, - ArrayRef<GlobalExpr> GlobalExprs); - - /// 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(const DIFile *File) override; - - void addImportedEntity(const DIImportedEntity* IE) { - DIScope *Scope = IE->getScope(); - assert(Scope && "Invalid Scope encoding!"); - if (!isa<DILocalScope>(Scope)) - // No need to add imported enities that are not local declaration. - return; - - auto *LocalScope = cast<DILocalScope>(Scope)->getNonLexicalBlockFileScope(); - ImportedEntities[LocalScope].push_back(IE); - } - - /// addRange - Add an address range to the list of ranges for this unit. - void addRange(RangeSpan Range); - - void attachLowHighPC(DIE &D, const MCSymbol *Begin, const MCSymbol *End); - - /// 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 - /// variables. - DIE &updateSubprogramScopeDIE(const DISubprogram *SP); - - void constructScopeDIE(LexicalScope *Scope, - SmallVectorImpl<DIE *> &FinalChildren); - - /// 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); - - /// This scope represents inlined body of a function. Construct - /// DIE to represent this concrete inlined copy of the function. - DIE *constructInlinedScopeDIE(LexicalScope *Scope); - - /// Construct new DW_TAG_lexical_block for this scope and - /// attach DW_AT_low_pc/DW_AT_high_pc labels. - DIE *constructLexicalScopeDIE(LexicalScope *Scope); - - /// constructVariableDIE - Construct a DIE for the given DbgVariable. - DIE *constructVariableDIE(DbgVariable &DV, bool Abstract = false); - - DIE *constructVariableDIE(DbgVariable &DV, const LexicalScope &Scope, - DIE *&ObjectPointer); - - /// Construct a DIE for the given DbgLabel. - DIE *constructLabelDIE(DbgLabel &DL, const LexicalScope &Scope); - - /// A helper function to create children of a Scope DIE. - DIE *createScopeChildrenDIE(LexicalScope *Scope, - SmallVectorImpl<DIE *> &Children, - bool *HasNonScopeChildren = nullptr); - - /// Construct a DIE for this subprogram scope. - DIE &constructSubprogramScopeDIE(const DISubprogram *Sub, - LexicalScope *Scope); - - DIE *createAndAddScopeChildren(LexicalScope *Scope, DIE &ScopeDIE); - - void constructAbstractSubprogramScopeDIE(LexicalScope *Scope); - - /// Construct a call site entry DIE describing a call within \p Scope to a - /// callee described by \p CalleeSP. \p IsTail specifies whether the call is - /// a tail call. \p PCOffset must be non-zero for non-tail calls or be the - /// function-local offset to PC value after the call instruction. - DIE &constructCallSiteEntryDIE(DIE &ScopeDIE, const DISubprogram &CalleeSP, - bool IsTail, const MCExpr *PCOffset); - - /// Construct import_module DIE. - DIE *constructImportedEntityDIE(const DIImportedEntity *Module); - - void finishSubprogramDefinition(const DISubprogram *SP); - void finishEntityDefinition(const DbgEntity *Entity); - - /// Find abstract variable associated with Var. - using InlinedEntity = DbgValueHistoryMap::InlinedEntity; - DbgEntity *getExistingAbstractEntity(const DINode *Node); - void createAbstractEntity(const DINode *Node, LexicalScope *Scope); - - /// Set the skeleton unit associated with this unit. - void setSkeleton(DwarfCompileUnit &Skel) { Skeleton = &Skel; } - - unsigned getHeaderSize() const override { - // DWARF v5 added the DWO ID to the header for split/skeleton units. - unsigned DWOIdSize = - DD->getDwarfVersion() >= 5 && DD->useSplitDwarf() ? sizeof(uint64_t) - : 0; - return DwarfUnit::getHeaderSize() + DWOIdSize; - } - unsigned getLength() { - return sizeof(uint32_t) + // Length field - getHeaderSize() + getUnitDie().getSize(); - } - - void emitHeader(bool UseOffsets) override; - - /// Add the DW_AT_addr_base attribute to the unit DIE. - void addAddrTableBase(); - - MCSymbol *getLabelBegin() const { - assert(getSection()); - return LabelBegin; - } - - MCSymbol *getMacroLabelBegin() const { - return MacroLabelBegin; - } - - /// Add a new global name to the compile unit. - void addGlobalName(StringRef Name, const DIE &Die, - const DIScope *Context) override; - - /// Add a new global name present in a type unit to this compile unit. - void addGlobalNameForTypeUnit(StringRef Name, const DIScope *Context); - - /// Add a new global type to the compile unit. - void addGlobalType(const DIType *Ty, const DIE &Die, - const DIScope *Context) override; - - /// Add a new global type present in a type unit to this compile unit. - void addGlobalTypeUnitType(const DIType *Ty, const DIScope *Context); - - 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); - - /// Add an attribute containing an address expression to \p Die. - void addAddressExpr(DIE &Die, dwarf::Attribute Attribute, const MCExpr *Expr); - - void applySubprogramAttributesToDefinition(const DISubprogram *SP, - DIE &SPDie); - - void applyLabelAttributes(const DbgLabel &Label, DIE &LabelDie); - - /// 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; } - - uint64_t getDWOId() const { return DWOId; } - void setDWOId(uint64_t DwoId) { DWOId = DwoId; } - - bool hasDwarfPubSections() const; -}; - -} // end namespace llvm - -#endif // LLVM_LIB_CODEGEN_ASMPRINTER_DWARFCOMPILEUNIT_H |