diff options
Diffstat (limited to 'contrib/llvm/lib/CodeGen/AsmPrinter/DwarfDebug.h')
| -rw-r--r-- | contrib/llvm/lib/CodeGen/AsmPrinter/DwarfDebug.h | 84 |
1 files changed, 25 insertions, 59 deletions
diff --git a/contrib/llvm/lib/CodeGen/AsmPrinter/DwarfDebug.h b/contrib/llvm/lib/CodeGen/AsmPrinter/DwarfDebug.h index 01f34c6..4c613a9 100644 --- a/contrib/llvm/lib/CodeGen/AsmPrinter/DwarfDebug.h +++ b/contrib/llvm/lib/CodeGen/AsmPrinter/DwarfDebug.h @@ -33,6 +33,7 @@ #include "llvm/MC/MCDwarf.h" #include "llvm/MC/MachineLocation.h" #include "llvm/Support/Allocator.h" +#include "llvm/Target/TargetOptions.h" #include <memory> namespace llvm { @@ -49,24 +50,6 @@ class DwarfUnit; class MachineModuleInfo; //===----------------------------------------------------------------------===// -/// This class is used to record source line correspondence. -class SrcLineInfo { - unsigned Line; // Source line number. - unsigned Column; // Source column. - unsigned SourceID; // Source ID number. - MCSymbol *Label; // Label in code ID number. -public: - SrcLineInfo(unsigned L, unsigned C, unsigned S, MCSymbol *label) - : Line(L), Column(C), SourceID(S), Label(label) {} - - // Accessors - unsigned getLine() const { return Line; } - unsigned getColumn() const { return Column; } - unsigned getSourceID() const { return SourceID; } - MCSymbol *getLabel() const { return Label; } -}; - -//===----------------------------------------------------------------------===// /// This class is used to track local variable information. /// /// Variables can be created from allocas, in which case they're generated from @@ -127,14 +110,14 @@ public: // Accessors. const DILocalVariable *getVariable() const { return Var; } const DILocation *getInlinedAt() const { return IA; } - const ArrayRef<const DIExpression *> getExpression() const { return Expr; } + ArrayRef<const DIExpression *> getExpression() const { return Expr; } void setDIE(DIE &D) { TheDIE = &D; } DIE *getDIE() const { return TheDIE; } void setDebugLocListIndex(unsigned O) { DebugLocListIndex = O; } unsigned getDebugLocListIndex() const { return DebugLocListIndex; } StringRef getName() const { return Var->getName(); } const MachineInstr *getMInsn() const { return MInsn; } - const ArrayRef<int> getFrameIndex() const { return FrameIndex; } + ArrayRef<int> getFrameIndex() const { return FrameIndex; } void addMMIEntry(const DbgVariable &V) { assert(DebugLocListIndex == ~0U && !MInsn && "not an MMI entry"); @@ -156,7 +139,8 @@ public: // Translate tag to proper Dwarf tag. dwarf::Tag getTag() const { - if (Var->getTag() == dwarf::DW_TAG_arg_variable) + // FIXME: Why don't we just infer this tag and store it all along? + if (Var->isParameter()) return dwarf::DW_TAG_formal_parameter; return dwarf::DW_TAG_variable; @@ -282,11 +266,6 @@ class DwarfDebug : public AsmPrinterHandler { /// Holders for the various debug information flags that we might need to /// have exposed. See accessor functions below for description. - /// Holder for imported entities. - typedef SmallVector<std::pair<const MDNode *, const MDNode *>, 32> - ImportedEntityMap; - ImportedEntityMap ScopesWithImportedEntities; - /// Map from MDNodes for user-defined types to the type units that /// describe them. DenseMap<const MDNode *, const DwarfTypeUnit *> DwarfTypeUnits; @@ -298,16 +277,12 @@ class DwarfDebug : public AsmPrinterHandler { /// 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; - /// Whether to use the GNU TLS opcode (instead of the standard opcode). bool UseGNUTLSOpcode; + /// Whether to emit DW_AT_[MIPS_]linkage_name. + bool UseLinkageNames; + /// Version of dwarf we're emitting. unsigned DwarfVersion; @@ -338,7 +313,6 @@ class DwarfDebug : public AsmPrinterHandler { /// True iff there are multiple CUs in this module. bool SingleCU; bool IsDarwin; - bool IsPS4; AddressPool AddrPool; @@ -347,7 +321,8 @@ class DwarfDebug : public AsmPrinterHandler { DwarfAccelTable AccelNamespace; DwarfAccelTable AccelTypes; - DenseMap<const Function *, DISubprogram *> FunctionDIs; + // Identify a debugger for "tuning" the debug info. + DebuggerKind DebuggerTuning; MCDwarfDwoLineTable *getDwoLineTable(const DwarfCompileUnit &); @@ -372,12 +347,6 @@ class DwarfDebug : public AsmPrinterHandler { /// Construct a DIE for this abstract scope. void constructAbstractSubprogramScopeDIE(LexicalScope *Scope); - /// Compute the size and offset of a DIE given an incoming Offset. - unsigned computeSizeAndOffset(DIE *Die, unsigned Offset); - - /// Compute the size and offset of all the DIEs. - void computeSizeAndOffsets(); - /// Collect info for variables that were optimized out. void collectDeadVariables(); @@ -443,9 +412,6 @@ class DwarfDebug : public AsmPrinterHandler { /// Emit visible names into a debug ranges section. void emitDebugRanges(); - /// Emit inline info using custom format. - void emitDebugInlineInfo(); - /// DWARF 5 Experimental Split Dwarf Emitters /// Initialize common features of skeleton units. @@ -456,10 +422,6 @@ class DwarfDebug : public AsmPrinterHandler { /// section. DwarfCompileUnit &constructSkeletonCU(const DwarfCompileUnit &CU); - /// Construct the split debug info compile unit for the debug info - /// section. - DwarfTypeUnit &constructSkeletonTU(DwarfTypeUnit &TU); - /// Emit the debug info dwo section. void emitDebugInfoDWO(); @@ -544,6 +506,9 @@ public: /// Process end of an instruction. void endInstruction() override; + /// Perform an MD5 checksum of \p Identifier and return the lower 64 bits. + static uint64_t makeTypeSignature(StringRef Identifier); + /// Add a DIE to the set of types that we're going to pull into /// type units. void addDwarfTypeUnitType(DwarfCompileUnit &CU, StringRef Identifier, @@ -558,10 +523,22 @@ public: SymSize[Sym] = Size; } + /// Returns whether to emit DW_AT_[MIPS_]linkage_name. + bool useLinkageNames() const { return UseLinkageNames; } + /// Returns whether to use DW_OP_GNU_push_tls_address, instead of the /// standard DW_OP_form_tls_address opcode bool useGNUTLSOpcode() const { return UseGNUTLSOpcode; } + /// \defgroup DebuggerTuning Predicates to tune DWARF for a given debugger. + /// + /// Returns whether we are "tuning" for a given debugger. + /// @{ + bool tuneForGDB() const { return DebuggerTuning == DebuggerKind::GDB; } + bool tuneForLLDB() const { return DebuggerTuning == DebuggerKind::LLDB; } + bool tuneForSCE() const { return DebuggerTuning == DebuggerKind::SCE; } + /// @} + // Experimental DWARF5 features. /// Returns whether or not to emit tables that dwarf consumers can @@ -604,9 +581,6 @@ public: 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); void addSubprogramNames(const DISubprogram *SP, DIE &Die); @@ -622,14 +596,6 @@ public: const MachineFunction *getCurrentFunction() const { return CurFn; } - iterator_range<ImportedEntityMap::const_iterator> - findImportedEntitiesForScope(const MDNode *Scope) const { - return make_range(std::equal_range( - ScopesWithImportedEntities.begin(), ScopesWithImportedEntities.end(), - std::pair<const MDNode *, const MDNode *>(Scope, nullptr), - less_first())); - } - /// A helper function to check whether the DIE for a given Scope is /// going to be null. bool isLexicalScopeDIENull(LexicalScope *Scope); |
