diff options
Diffstat (limited to 'lib/CodeGen/AsmPrinter/DwarfDebug.h')
| -rw-r--r-- | lib/CodeGen/AsmPrinter/DwarfDebug.h | 115 |
1 files changed, 72 insertions, 43 deletions
diff --git a/lib/CodeGen/AsmPrinter/DwarfDebug.h b/lib/CodeGen/AsmPrinter/DwarfDebug.h index 101dc70..bd377c5 100644 --- a/lib/CodeGen/AsmPrinter/DwarfDebug.h +++ b/lib/CodeGen/AsmPrinter/DwarfDebug.h @@ -35,7 +35,7 @@ class DbgScope; class DbgConcreteScope; class MachineFrameInfo; class MachineModuleInfo; -class TargetAsmInfo; +class MCAsmInfo; class Timer; //===----------------------------------------------------------------------===// @@ -120,7 +120,7 @@ class VISIBILITY_HIDDEN DwarfDebug : public Dwarf { /// SectionMap - Provides a unique id per text section. /// - UniqueVector<const Section*> SectionMap; + UniqueVector<const MCSection*> SectionMap; /// SectionSourceLines - Tracks line numbers per text section. /// @@ -139,34 +139,38 @@ class VISIBILITY_HIDDEN DwarfDebug : public Dwarf { DbgScope *FunctionDbgScope; /// DbgScopeMap - Tracks the scopes in the current function. - DenseMap<GlobalVariable *, DbgScope *> DbgScopeMap; + DenseMap<MDNode *, DbgScope *> DbgScopeMap; + + /// ScopedGVs - Tracks global variables that are not at file scope. + /// For example void f() { static int b = 42; } + SmallVector<WeakVH, 4> ScopedGVs; + + typedef DenseMap<const MachineInstr *, SmallVector<DbgScope *, 2> > + InsnToDbgScopeMapTy; + + /// DbgScopeBeginMap - Maps instruction with a list DbgScopes it starts. + InsnToDbgScopeMapTy DbgScopeBeginMap; + + /// DbgScopeEndMap - Maps instruction with a list DbgScopes it ends. + InsnToDbgScopeMapTy DbgScopeEndMap; /// DbgAbstractScopeMap - Tracks abstract instance scopes in the current /// function. - DenseMap<GlobalVariable *, DbgScope *> DbgAbstractScopeMap; + DenseMap<MDNode *, DbgScope *> DbgAbstractScopeMap; /// DbgConcreteScopeMap - Tracks concrete instance scopes in the current /// function. - DenseMap<GlobalVariable *, + DenseMap<MDNode *, SmallVector<DbgScope *, 8> > DbgConcreteScopeMap; /// InlineInfo - Keep track of inlined functions and their location. This /// information is used to populate debug_inlined section. - DenseMap<GlobalVariable *, SmallVector<unsigned, 4> > InlineInfo; - - /// InlinedVariableScopes - Scopes information for the inlined subroutine - /// variables. - DenseMap<const MachineInstr *, DbgScope *> InlinedVariableScopes; + DenseMap<MDNode *, SmallVector<unsigned, 4> > InlineInfo; /// AbstractInstanceRootMap - Map of abstract instance roots of inlined /// functions. These are subroutine entries that contain a DW_AT_inline /// attribute. - DenseMap<const GlobalVariable *, DbgScope *> AbstractInstanceRootMap; - - /// InlinedParamMap - A map keeping track of which parameters are assigned to - /// which abstract instance. - DenseMap<const GlobalVariable *, - SmallSet<const GlobalVariable *, 32> > InlinedParamMap; + DenseMap<const MDNode *, DbgScope *> AbstractInstanceRootMap; /// AbstractInstanceRootList - List of abstract instance roots of inlined /// functions. These are subroutine entries that contain a DW_AT_inline @@ -284,11 +288,8 @@ class VISIBILITY_HIDDEN DwarfDebug : public Dwarf { /// AddSourceLine - Add location information to specified debug information /// entry. void AddSourceLine(DIE *Die, const DIVariable *V); - - /// AddSourceLine - Add location information to specified debug information - /// entry. void AddSourceLine(DIE *Die, const DIGlobal *G); - + void AddSourceLine(DIE *Die, const DISubprogram *SP); void AddSourceLine(DIE *Die, const DIType *Ty); /// AddAddress - Add an address attribute to a die based on the location @@ -296,6 +297,24 @@ class VISIBILITY_HIDDEN DwarfDebug : public Dwarf { void AddAddress(DIE *Die, unsigned Attribute, const MachineLocation &Location); + /// AddComplexAddress - 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(DbgVariable *&DV, DIE *Die, unsigned Attribute, + const MachineLocation &Location); + + // FIXME: Should be reformulated in terms of AddComplexAddress. + /// AddBlockByrefAddress - Start with the address based on the location + /// provided, and generate the DWARF information necessary to find the + /// actual Block variable (navigating the Block struct) based on the + /// starting location. Add the DWARF information to the die. Obsolete, + /// please use AddComplexAddress instead. + /// + void AddBlockByrefAddress(DbgVariable *&DV, DIE *Die, unsigned Attribute, + const MachineLocation &Location); + /// AddType - Add a new type attribute to the specified entity. void AddType(CompileUnit *DW_Unit, DIE *Entity, DIType Ty); @@ -342,9 +361,10 @@ class VISIBILITY_HIDDEN DwarfDebug : public Dwarf { /// DIE *CreateDbgScopeVariable(DbgVariable *DV, CompileUnit *Unit); - /// getOrCreateScope - Returns the scope associated with the given descriptor. + /// getDbgScope - Returns the scope associated with the given descriptor. /// - DbgScope *getOrCreateScope(GlobalVariable *V); + DbgScope *getOrCreateScope(MDNode *N); + DbgScope *getDbgScope(MDNode *N, const MachineInstr *MI); /// ConstructDbgScope - Construct the components of a scope. /// @@ -454,20 +474,26 @@ class VISIBILITY_HIDDEN DwarfDebug : public Dwarf { /// source file names. If none currently exists, create a new id and insert it /// in the SourceIds map. This can update DirectoryNames and SourceFileNames maps /// as well. - unsigned GetOrCreateSourceID(const std::string &DirName, - const std::string &FileName); + unsigned GetOrCreateSourceID(const char *DirName, + const char *FileName); - void ConstructCompileUnit(GlobalVariable *GV); + void ConstructCompileUnit(MDNode *N); - void ConstructGlobalVariableDIE(GlobalVariable *GV); + void ConstructGlobalVariableDIE(MDNode *N); - void ConstructSubprogram(GlobalVariable *GV); + void ConstructSubprogram(MDNode *N); + + // FIXME: This should go away in favor of complex addresses. + /// Find the type the programmer originally declared the variable to be + /// and return that type. Obsolete, use GetComplexAddrType instead. + /// + DIType GetBlockByrefType(DIType Ty, std::string Name); public: //===--------------------------------------------------------------------===// // Main entry points. // - DwarfDebug(raw_ostream &OS, AsmPrinter *A, const TargetAsmInfo *T); + DwarfDebug(raw_ostream &OS, AsmPrinter *A, const MCAsmInfo *T); virtual ~DwarfDebug(); /// ShouldEmitDwarfDebug - Returns true if Dwarf debugging declarations should @@ -493,12 +519,7 @@ public: /// RecordSourceLine - Records location information and associates it with a /// label. Returns a unique label ID used to generate a label and provide /// correspondence to the source line list. - unsigned RecordSourceLine(Value *V, unsigned Line, unsigned Col); - - /// RecordSourceLine - Records location information and associates it with a - /// label. Returns a unique label ID used to generate a label and provide - /// correspondence to the source line list. - unsigned RecordSourceLine(unsigned Line, unsigned Col, DICompileUnit CU); + unsigned RecordSourceLine(unsigned Line, unsigned Col, MDNode *Scope); /// getRecordSourceLineCount - Return the number of source lines in the debug /// info. @@ -515,14 +536,13 @@ public: const std::string &FileName); /// RecordRegionStart - Indicate the start of a region. - unsigned RecordRegionStart(GlobalVariable *V); + unsigned RecordRegionStart(MDNode *N); /// RecordRegionEnd - Indicate the end of a region. - unsigned RecordRegionEnd(GlobalVariable *V); + unsigned RecordRegionEnd(MDNode *N); /// RecordVariable - Indicate the declaration of a local variable. - void RecordVariable(GlobalVariable *GV, unsigned FrameIndex, - const MachineInstr *MI); + void RecordVariable(MDNode *N, unsigned FrameIndex); //// RecordInlinedFnStart - Indicate the start of inlined subroutine. unsigned RecordInlinedFnStart(DISubprogram &SP, DICompileUnit CU, @@ -531,11 +551,20 @@ public: /// RecordInlinedFnEnd - Indicate the end of inlined subroutine. unsigned RecordInlinedFnEnd(DISubprogram &SP); - /// RecordVariableScope - Record scope for the variable declared by - /// DeclareMI. DeclareMI must describe TargetInstrInfo::DECLARE. Record scopes - /// for only inlined subroutine variables. Other variables's scopes are - /// determined during RecordVariable(). - void RecordVariableScope(DIVariable &DV, const MachineInstr *DeclareMI); + /// ExtractScopeInformation - Scan machine instructions in this function + /// and collect DbgScopes. Return true, if atleast one scope was found. + bool ExtractScopeInformation(MachineFunction *MF); + + /// CollectVariableInfo - Populate DbgScope entries with variables' info. + void CollectVariableInfo(); + + /// SetDbgScopeBeginLabels - Update DbgScope begin labels for the scopes that + /// start with this machine instruction. + void SetDbgScopeBeginLabels(const MachineInstr *MI, unsigned Label); + + /// SetDbgScopeEndLabels - Update DbgScope end labels for the scopes that + /// end with this machine instruction. + void SetDbgScopeEndLabels(const MachineInstr *MI, unsigned Label); }; } // End of namespace llvm |
