#ifndef CODEGEN_ASMPRINTER_DWARFDEBUG_H__
#define CODEGEN_ASMPRINTER_DWARFDEBUG_H__
+#include "DwarfFile.h"
#include "AsmPrinterHandler.h"
#include "DIE.h"
#include "DebugLocEntry.h"
#include "DebugLocList.h"
+#include "DwarfAccelTable.h"
#include "llvm/ADT/DenseMap.h"
#include "llvm/ADT/MapVector.h"
#include "llvm/ADT/SmallPtrSet.h"
#include "llvm/MC/MCDwarf.h"
#include "llvm/Support/Allocator.h"
-#include <list>
+#include <memory>
namespace llvm {
public:
// AbsVar may be NULL.
DbgVariable(DIVariable V, DbgVariable *AV, DwarfDebug *DD)
- : Var(V), TheDIE(0), DotDebugLocOffset(~0U), AbsVar(AV), MInsn(0),
- FrameIndex(~0), DD(DD) {}
+ : Var(V), TheDIE(nullptr), DotDebugLocOffset(~0U), AbsVar(AV),
+ MInsn(nullptr), FrameIndex(~0), DD(DD) {}
// Accessors.
DIVariable getVariable() const { return Var; }
- void setDIE(DIE *D) { TheDIE = D; }
+ void setDIE(DIE &D) { TheDIE = &D; }
DIE *getDIE() const { return TheDIE; }
void setDotDebugLocOffset(unsigned O) { DotDebugLocOffset = O; }
unsigned getDotDebugLocOffset() const { return DotDebugLocOffset; }
template <typename T> T resolve(DIRef<T> Ref) const;
};
-/// \brief Collects and handles information specific to a particular
-/// collection of units. This collection represents all of the units
-/// that will be ultimately output into a single object file.
-class DwarfFile {
- // Target of Dwarf emission, used for sizing of abbreviations.
- AsmPrinter *Asm;
-
- // Used to uniquely define abbreviations.
- FoldingSet<DIEAbbrev> AbbreviationsSet;
-
- // A list of all the unique abbreviations in use.
- std::vector<DIEAbbrev *> Abbreviations;
-
- // A pointer to all units in the section.
- SmallVector<DwarfUnit *, 1> CUs;
-
- // Collection of strings for this unit and assorted symbols.
- // A String->Symbol mapping of strings used by indirect
- // references.
- typedef StringMap<std::pair<MCSymbol *, unsigned>, BumpPtrAllocator &>
- StrPool;
- StrPool StringPool;
- unsigned NextStringPoolNumber;
- std::string StringPref;
-
- struct AddressPoolEntry {
- unsigned Number;
- bool TLS;
- AddressPoolEntry(unsigned Number, bool TLS) : Number(Number), TLS(TLS) {}
- };
- // Collection of addresses for this unit and assorted labels.
- // A Symbol->unsigned mapping of addresses used by indirect
- // references.
- typedef DenseMap<const MCSymbol *, AddressPoolEntry> AddrPool;
- AddrPool AddressPool;
- unsigned NextAddrPoolNumber;
-
-public:
- DwarfFile(AsmPrinter *AP, const char *Pref, BumpPtrAllocator &DA)
- : Asm(AP), StringPool(DA), NextStringPoolNumber(0), StringPref(Pref),
- AddressPool(), NextAddrPoolNumber(0) {}
-
- ~DwarfFile();
-
- const SmallVectorImpl<DwarfUnit *> &getUnits() { return CUs; }
-
- /// \brief Compute the size and offset of a DIE given an incoming Offset.
- unsigned computeSizeAndOffset(DIE &Die, unsigned Offset);
-
- /// \brief Compute the size and offset of all the DIEs.
- void computeSizeAndOffsets();
-
- /// \brief Define a unique number for the abbreviation.
- void assignAbbrevNumber(DIEAbbrev &Abbrev);
-
- /// \brief Add a unit to the list of CUs.
- void addUnit(DwarfUnit *CU) { CUs.push_back(CU); }
-
- /// \brief Emit all of the units to the section listed with the given
- /// abbreviation section.
- void emitUnits(DwarfDebug *DD, const MCSymbol *ASectionSym);
-
- /// \brief Emit a set of abbreviations to the specific section.
- void emitAbbrevs(const MCSection *);
-
- /// \brief Emit all of the strings to the section given.
- void emitStrings(const MCSection *StrSection, const MCSection *OffsetSection,
- const MCSymbol *StrSecSym);
-
- /// \brief Emit all of the addresses to the section given.
- void emitAddresses(const MCSection *AddrSection);
-
- /// \brief Returns the entry into the start of the pool.
- MCSymbol *getStringPoolSym();
-
- /// \brief Returns an entry into the string pool with the given
- /// string text.
- MCSymbol *getStringPoolEntry(StringRef Str);
-
- /// \brief Returns the index into the string pool with the given
- /// string text.
- unsigned getStringPoolIndex(StringRef Str);
-
- /// \brief Returns the string pool.
- StrPool *getStringPool() { return &StringPool; }
-
- /// \brief Returns the index into the address pool with the given
- /// label/symbol.
- unsigned getAddrPoolIndex(const MCSymbol *Sym, bool TLS = false);
-
- /// \brief Returns the address pool.
- AddrPool *getAddrPool() { return &AddressPool; }
-};
/// \brief Helper used to pair up a symbol and its DWARF compile unit.
struct SymbolCU {
SectionMapType SectionMap;
// List of arguments for current function.
- // Linked list use to maintain pointer validity. Singly linked list could
- // suffice with some contortions to addCurrentFnArgument.
- std::list<DbgVariable> CurrentFnArguments;
+ SmallVector<DbgVariable *, 8> CurrentFnArguments;
LexicalScopes LScopes;
DenseMap<const MDNode *, DIE *> AbstractSPDies;
// Collection of dbg variables of a scope.
- // Linked list use to maintain pointer validity. Singly linked list could
- // suffice with some contortions to addScopeVariable.
- typedef DenseMap<LexicalScope *, std::list<DbgVariable>>
+ typedef DenseMap<LexicalScope *, SmallVector<DbgVariable *, 8> >
ScopeVariablesMap;
ScopeVariablesMap ScopeVariables;
// them.
DenseMap<const MDNode *, const DwarfTypeUnit *> DwarfTypeUnits;
+ SmallVector<std::pair<std::unique_ptr<DwarfTypeUnit>, DICompositeType>, 1> TypeUnitsUnderConstruction;
+
// Whether to emit the pubnames/pubtypes sections.
bool HasDwarfPubSections;
// True iff there are multiple CUs in this module.
bool SingleCU;
+ AddressPool AddrPool;
+
+ DwarfAccelTable AccelNames;
+ DwarfAccelTable AccelObjC;
+ DwarfAccelTable AccelNamespace;
+ DwarfAccelTable AccelTypes;
+
MCDwarfDwoLineTable *getDwoLineTable(const DwarfCompileUnit &);
- DbgVariable &addScopeVariable(LexicalScope *LS, DbgVariable Var);
+ void addScopeVariable(LexicalScope *LS, DbgVariable *Var);
- const SmallVectorImpl<DwarfUnit *> &getUnits() {
+ const SmallVectorImpl<std::unique_ptr<DwarfUnit>> &getUnits() {
return InfoHolder.getUnits();
}
/// 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(DwarfCompileUnit *SPCU, DISubprogram SP);
+ DIE *updateSubprogramScopeDIE(DwarfCompileUnit &SPCU, DISubprogram SP);
/// \brief A helper function to check whether the DIE for a given Scope is
/// going to be null.
/// \brief A helper function to construct a RangeSpanList for a given
/// lexical scope.
- void addScopeRangeList(DwarfCompileUnit *TheCU, DIE *ScopeDIE,
+ void addScopeRangeList(DwarfCompileUnit &TheCU, DIE &ScopeDIE,
const SmallVectorImpl<InsnRange> &Range);
/// \brief Construct new DW_TAG_lexical_block for this scope and
/// attach DW_AT_low_pc/DW_AT_high_pc labels.
- DIE *constructLexicalScopeDIE(DwarfCompileUnit *TheCU, LexicalScope *Scope);
+ DIE *constructLexicalScopeDIE(DwarfCompileUnit &TheCU, LexicalScope *Scope);
/// \brief This scope represents inlined body of a function. Construct
/// DIE to represent this concrete inlined copy of the function.
- DIE *constructInlinedScopeDIE(DwarfCompileUnit *TheCU, LexicalScope *Scope);
+ DIE *constructInlinedScopeDIE(DwarfCompileUnit &TheCU, LexicalScope *Scope);
/// \brief Construct a DIE for this scope.
- DIE *constructScopeDIE(DwarfCompileUnit *TheCU, LexicalScope *Scope);
+ DIE *constructScopeDIE(DwarfCompileUnit &TheCU, LexicalScope *Scope);
/// A helper function to create children of a Scope DIE.
- DIE *createScopeChildrenDIE(DwarfCompileUnit *TheCU, LexicalScope *Scope,
- SmallVectorImpl<DIE *> &Children);
+ DIE *createScopeChildrenDIE(DwarfCompileUnit &TheCU, LexicalScope *Scope,
+ SmallVectorImpl<std::unique_ptr<DIE>> &Children);
/// \brief Emit initial Dwarf sections with a label at the start of each one.
void emitSectionLabels();
/// DWARF 5 Experimental Split Dwarf Emitters
/// \brief Initialize common features of skeleton units.
- void initSkeletonUnit(const DwarfUnit *U, DIE *Die, DwarfUnit *NewU);
+ void initSkeletonUnit(const DwarfUnit &U, DIE &Die,
+ std::unique_ptr<DwarfUnit> NewU);
/// \brief Construct the split debug info compile unit for the debug info
/// section.
- DwarfCompileUnit *constructSkeletonCU(const DwarfCompileUnit *CU);
+ DwarfCompileUnit &constructSkeletonCU(const DwarfCompileUnit &CU);
/// \brief Construct the split debug info compile unit for the debug info
/// section.
- DwarfTypeUnit *constructSkeletonTU(DwarfTypeUnit *TU);
+ DwarfTypeUnit &constructSkeletonTU(DwarfTypeUnit &TU);
/// \brief Emit the debug info dwo section.
void emitDebugInfoDWO();
/// Flags to let the linker know we have emitted new style pubnames. Only
/// emit it here if we don't have a skeleton CU for split dwarf.
- void addGnuPubAttributes(DwarfUnit *U, DIE *D) const;
+ void addGnuPubAttributes(DwarfUnit &U, DIE &D) const;
/// \brief Create new DwarfCompileUnit for the given metadata node with tag
/// DW_TAG_compile_unit.
- DwarfCompileUnit *constructDwarfCompileUnit(DICompileUnit DIUnit);
+ DwarfCompileUnit &constructDwarfCompileUnit(DICompileUnit DIUnit);
/// \brief Construct subprogram DIE.
- void constructSubprogramDIE(DwarfCompileUnit *TheCU, const MDNode *N);
+ void constructSubprogramDIE(DwarfCompileUnit &TheCU, const MDNode *N);
/// \brief Construct imported_module or imported_declaration DIE.
- void constructImportedEntityDIE(DwarfCompileUnit *TheCU, const MDNode *N);
+ void constructImportedEntityDIE(DwarfCompileUnit &TheCU, const MDNode *N);
/// \brief Construct import_module DIE.
- void constructImportedEntityDIE(DwarfCompileUnit *TheCU, const MDNode *N,
+ void constructImportedEntityDIE(DwarfCompileUnit &TheCU, const MDNode *N,
DIE *Context);
/// \brief Construct import_module DIE.
- void constructImportedEntityDIE(DwarfCompileUnit *TheCU,
+ void constructImportedEntityDIE(DwarfCompileUnit &TheCU,
const DIImportedEntity &Module, DIE *Context);
/// \brief Register a source line with debug info. Returns the unique
/// \brief If Var is an current function argument that add it in
/// CurrentFnArguments list.
- DbgVariable *addCurrentFnArgument(DbgVariable &Var, LexicalScope *Scope);
-
- DbgVariable &addVariable(DbgVariable Var, LexicalScope *Scope);
+ bool addCurrentFnArgument(DbgVariable *Var, LexicalScope *Scope);
/// \brief Populate LexicalScope entries with variables' info.
void collectVariableInfo(SmallPtrSet<const MDNode *, 16> &ProcessedVars);
/// \brief Ensure that a label will be emitted before MI.
void requestLabelBeforeInsn(const MachineInstr *MI) {
- LabelsBeforeInsn.insert(std::make_pair(MI, (MCSymbol *)0));
+ LabelsBeforeInsn.insert(std::make_pair(MI, nullptr));
}
/// \brief Return Label preceding the instruction.
/// \brief Ensure that a label will be emitted after MI.
void requestLabelAfterInsn(const MachineInstr *MI) {
- LabelsAfterInsn.insert(std::make_pair(MI, (MCSymbol *)0));
+ LabelsAfterInsn.insert(std::make_pair(MI, nullptr));
}
/// \brief Return Label immediately following the instruction.
MCSymbol *getLabelAfterInsn(const MachineInstr *MI);
- void attachLowHighPC(DwarfCompileUnit *Unit, DIE *D, MCSymbol *Begin,
+ void attachLowHighPC(DwarfCompileUnit &Unit, DIE &D, MCSymbol *Begin,
MCSymbol *End);
public:
/// \brief Add a DIE to the set of types that we're going to pull into
/// type units.
void addDwarfTypeUnitType(DwarfCompileUnit &CU, StringRef Identifier,
- DIE *Die, DICompositeType CTy);
+ DIE &Die, DICompositeType CTy);
/// \brief Add a label so that arange data can be generated for it.
void addArangeLabel(SymbolCU SCU) { ArangeLabels.push_back(SCU); }
/// isSubprogramContext - Return true if Context is either a subprogram
/// or another context nested inside a subprogram.
bool isSubprogramContext(const MDNode *Context);
+
+ void addSubprogramNames(DISubprogram SP, DIE &Die);
+
+ AddressPool &getAddressPool() { return AddrPool; }
+
+ void addAccelName(StringRef Name, const DIE &Die);
+
+ void addAccelObjC(StringRef Name, const DIE &Die);
+
+ void addAccelNamespace(StringRef Name, const DIE &Die);
+
+ void addAccelType(StringRef Name, const DIE &Die, char Flags);
};
} // End of namespace llvm
projects / oota-llvm.git / blobdiff