#include "DIE.h"
#include "llvm/ADT/DenseMap.h"
#include "llvm/ADT/FoldingSet.h"
+#include "llvm/ADT/MapVector.h"
#include "llvm/ADT/SetVector.h"
#include "llvm/ADT/SmallPtrSet.h"
#include "llvm/ADT/StringMap.h"
#include "llvm/CodeGen/AsmPrinter.h"
#include "llvm/CodeGen/LexicalScopes.h"
-#include "llvm/DebugInfo.h"
+#include "llvm/IR/DebugInfo.h"
+#include "llvm/IR/DebugLoc.h"
#include "llvm/MC/MachineLocation.h"
#include "llvm/Support/Allocator.h"
-#include "llvm/Support/DebugLoc.h"
namespace llvm {
+class ByteStreamer;
class DwarfUnit;
class DwarfCompileUnit;
class ConstantInt;
class MCObjectFileInfo;
class DIEAbbrev;
class DIE;
-class DIEBlock;
+class DIELoc;
class DIEEntry;
//===----------------------------------------------------------------------===//
/// \brief Empty entries are also used as a trigger to emit temp label. Such
/// labels are referenced is used to find debug_loc offset for a given DIE.
- bool isEmpty() { return Begin == 0 && End == 0; }
- bool isMerged() { return Merged; }
+ bool isEmpty() const { return Begin == 0 && End == 0; }
+ bool isMerged() const { return Merged; }
void Merge(DotDebugLocEntry *Next) {
if (!(Begin && Loc == Next->Loc && End == Next->Begin))
return;
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 MCExpr *, unsigned> AddrPool;
+ typedef DenseMap<const MCSymbol *, AddressPoolEntry> AddrPool;
AddrPool AddressPool;
unsigned NextAddrPoolNumber;
/// \brief Returns the index into the address pool with the given
/// label/symbol.
- unsigned getAddrPoolIndex(const MCExpr *Sym);
- unsigned getAddrPoolIndex(const MCSymbol *Sym);
+ unsigned getAddrPoolIndex(const MCSymbol *Sym, bool TLS = false);
/// \brief Returns the address pool.
AddrPool *getAddrPool() { return &AddressPool; }
DwarfCompileUnit *FirstCU;
// Maps MDNode with its corresponding DwarfCompileUnit.
- DenseMap<const MDNode *, DwarfCompileUnit *> CUMap;
+ MapVector<const MDNode *, DwarfCompileUnit *> CUMap;
// Maps subprogram MDNode with its corresponding DwarfCompileUnit.
DenseMap<const MDNode *, DwarfCompileUnit *> SPMap;
// Whether to emit the pubnames/pubtypes sections.
bool HasDwarfPubSections;
+ // Whether or not to use AT_ranges for compilation units.
+ bool HasCURanges;
+
+ // Whether we emitted a function into a section other than the default
+ // text.
+ bool UsedNonDefaultText;
+
// Version of dwarf we're emitting.
unsigned DwarfVersion;
/// DWARF 5 Experimental Split Dwarf Emitters
+ /// \brief Initialize common features of skeleton units.
+ void initSkeletonUnit(const DwarfUnit *U, DIE *Die, DwarfUnit *NewU);
+
/// \brief Construct the split debug info compile unit for the debug info
/// section.
DwarfCompileUnit *constructSkeletonCU(const DwarfCompileUnit *CU);
+ /// \brief Construct the split debug info compile unit for the debug info
+ /// section.
+ DwarfTypeUnit *constructSkeletonTU(DwarfTypeUnit *TU);
+
/// \brief Emit the debug info dwo section.
void emitDebugInfoDWO();
/// \brief Return Label immediately following the instruction.
MCSymbol *getLabelAfterInsn(const MachineInstr *MI);
+ void attachLowHighPC(DwarfCompileUnit *Unit, DIE *D, MCSymbol *Begin,
+ MCSymbol *End);
+
public:
//===--------------------------------------------------------------------===//
// Main entry points.
void beginModule();
/// \brief Emit all Dwarf sections that should come after the content.
- void endModule();
+ void endModule() override;
/// \brief Gather pre-function debug information.
- void beginFunction(const MachineFunction *MF);
+ void beginFunction(const MachineFunction *MF) override;
/// \brief Gather and emit post-function debug information.
- void endFunction(const MachineFunction *MF);
+ void endFunction(const MachineFunction *MF) override;
/// \brief Process beginning of an instruction.
- void beginInstruction(const MachineInstr *MI);
+ void beginInstruction(const MachineInstr *MI) override;
/// \brief Process end of an instruction.
- void endInstruction();
+ void endInstruction() override;
/// \brief Add a DIE to the set of types that we're going to pull into
/// type units.
- void addDwarfTypeUnitType(DICompileUnit CUNode, StringRef Identifier,
+ void addDwarfTypeUnitType(DwarfCompileUnit &CU, StringRef Identifier,
DIE *Die, DICompositeType CTy);
/// \brief Add a label so that arange data can be generated for it.
/// \brief For symbols that have a size designated (e.g. common symbols),
/// this tracks that size.
- void setSymbolSize(const MCSymbol *Sym, uint64_t Size) {
+ void setSymbolSize(const MCSymbol *Sym, uint64_t Size) override {
SymSize[Sym] = Size;
}
/// \brief Returns whether or not to emit tables that dwarf consumers can
/// use to accelerate lookup.
- bool useDwarfAccelTables() { return HasDwarfAccelTables; }
+ bool useDwarfAccelTables() const { return HasDwarfAccelTables; }
/// \brief Returns whether or not to change the current debug info for the
/// split dwarf proposal support.
- bool useSplitDwarf() { return HasSplitDwarf; }
+ bool useSplitDwarf() const { return HasSplitDwarf; }
+
+ /// \brief Returns whether or not to use AT_ranges for compilation units.
+ bool useCURanges() const { return HasCURanges; }
/// Returns the Dwarf Version.
unsigned getDwarfVersion() const { return DwarfVersion; }
+ /// Returns the section symbol for the .debug_loc section.
+ MCSymbol *getDebugLocSym() const { return DwarfDebugLocSectionSym; }
+
+ /// Returns the entries for the .debug_loc section.
+ const SmallVectorImpl<DotDebugLocEntry> &getDebugLocEntries() const {
+ return DotDebugLocEntries;
+ }
+
+ /// \brief Emit an entry for the debug loc section. This can be used to
+ /// handle an entry that's going to be emitted into the debug loc section.
+ void emitDebugLocEntry(ByteStreamer &Streamer, const DotDebugLocEntry &Entry);
+
/// Find the MDNode for the given reference.
template <typename T> T resolve(DIRef<T> Ref) const {
return Ref.resolve(TypeIdentifierMap);
}
+ /// Find the DwarfCompileUnit for the given CU Die.
+ DwarfCompileUnit *lookupUnit(const DIE *CU) const {
+ return CUDieMap.lookup(CU);
+ }
/// isSubprogramContext - Return true if Context is either a subprogram
/// or another context nested inside a subprogram.
bool isSubprogramContext(const MDNode *Context);
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