#define CODEGEN_ASMPRINTER_DWARFDEBUG_H__
#include "llvm/CodeGen/AsmPrinter.h"
+#include "llvm/CodeGen/MachineLocation.h"
#include "DIE.h"
#include "llvm/ADT/DenseMap.h"
#include "llvm/ADT/FoldingSet.h"
#include "llvm/ADT/StringMap.h"
#include "llvm/ADT/UniqueVector.h"
#include "llvm/Support/Allocator.h"
+#include "llvm/Support/DebugLoc.h"
namespace llvm {
class DbgScope;
class DbgVariable;
class MachineFrameInfo;
-class MachineLocation;
class MachineModuleInfo;
+class MachineOperand;
class MCAsmInfo;
class DIEAbbrev;
class DIE;
class DINameSpace;
class DISubrange;
class DICompositeType;
+class DITemplateTypeParameter;
+class DITemplateValueParameter;
//===----------------------------------------------------------------------===//
/// SrcLineInfo - This class is used to record source line correspondence.
MCSymbol *getLabel() const { return Label; }
};
+/// DotDebugLocEntry - This struct describes location entries emitted in
+/// .debug_loc section.
+typedef struct DotDebugLocEntry {
+ const MCSymbol *Begin;
+ const MCSymbol *End;
+ MachineLocation Loc;
+ bool Merged;
+ DotDebugLocEntry() : Begin(0), End(0), Merged(false) {}
+ DotDebugLocEntry(const MCSymbol *B, const MCSymbol *E, MachineLocation &L)
+ : Begin(B), End(E), Loc(L), Merged(false) {}
+ /// 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; }
+ void Merge(DotDebugLocEntry *Next) {
+ if (!(Begin && Loc == Next->Loc && End == Next->Begin))
+ return;
+ Next->Begin = Begin;
+ Merged = true;
+ }
+} DotDebugLocEntry;
+
class DwarfDebug {
/// Asm - Target of Dwarf emission.
AsmPrinter *Asm;
// Attributes used to construct specific Dwarf sections.
//
- /// ModuleCU - All DIEs are inserted in ModuleCU.
- CompileUnit *ModuleCU;
+ CompileUnit *FirstCU;
+ DenseMap <const MDNode *, CompileUnit *> CUMap;
/// AbbreviationsSet - Used to uniquely define abbreviations.
///
///
std::vector<DIEAbbrev *> Abbreviations;
- /// DirectoryIdMap - Directory name to directory id map.
- ///
- StringMap<unsigned> DirectoryIdMap;
-
- /// DirectoryNames - A list of directory names.
- SmallVector<std::string, 8> DirectoryNames;
-
- /// SourceFileIdMap - Source file name to source file id map.
- ///
- StringMap<unsigned> SourceFileIdMap;
-
- /// SourceFileNames - A list of source file names.
- SmallVector<std::string, 8> SourceFileNames;
-
/// SourceIdMap - Source id map, i.e. pair of directory id and source file
/// id mapped to a unique id.
- DenseMap<std::pair<unsigned, unsigned>, unsigned> SourceIdMap;
-
- /// SourceIds - Reverse map from source id to directory id + file id pair.
- ///
- SmallVector<std::pair<unsigned, unsigned>, 8> SourceIds;
-
- /// Lines - List of source line correspondence.
- std::vector<SrcLineInfo> Lines;
+ StringMap<unsigned> SourceIdMap;
/// DIEBlocks - A list of all the DIEBlocks in use.
std::vector<DIEBlock *> DIEBlocks;
///
UniqueVector<const MCSection*> SectionMap;
- /// SectionSourceLines - Tracks line numbers per text section.
+ /// CurrentFnDbgScope - Top level scope for the current function.
///
- std::vector<std::vector<SrcLineInfo> > SectionSourceLines;
-
- // CurrentFnDbgScope - Top level scope for the current function.
- //
DbgScope *CurrentFnDbgScope;
+ /// CurrentFnArguments - List of Arguments (DbgValues) for current function.
+ SmallVector<DbgVariable *, 8> CurrentFnArguments;
+
/// DbgScopeMap - Tracks the scopes in the current function. Owns the
/// contained DbgScope*s.
///
- DenseMap<MDNode *, DbgScope *> DbgScopeMap;
+ DenseMap<const MDNode *, DbgScope *> DbgScopeMap;
/// ConcreteScopes - Tracks the concrete scopees in the current function.
/// These scopes are also included in DbgScopeMap.
- DenseMap<MDNode *, DbgScope *> ConcreteScopes;
+ DenseMap<const MDNode *, DbgScope *> ConcreteScopes;
/// AbstractScopes - Tracks the abstract scopes a module. These scopes are
/// not included DbgScopeMap. AbstractScopes owns its DbgScope*s.
- DenseMap<MDNode *, DbgScope *> AbstractScopes;
+ DenseMap<const MDNode *, DbgScope *> AbstractScopes;
+
+ /// AbstractSPDies - Collection of abstract subprogram DIEs.
+ DenseMap<const MDNode *, DIE *> AbstractSPDies;
/// AbstractScopesList - Tracks abstract scopes constructed while processing
/// a function. This list is cleared during endFunction().
/// AbstractVariables - Collection on abstract variables. Owned by the
/// DbgScopes in AbstractScopes.
- DenseMap<MDNode *, DbgVariable *> AbstractVariables;
+ DenseMap<const MDNode *, DbgVariable *> AbstractVariables;
+
+ /// DbgVariableToFrameIndexMap - Tracks frame index used to find
+ /// variable's value.
+ DenseMap<const DbgVariable *, int> DbgVariableToFrameIndexMap;
+
+ /// DbgVariableToDbgInstMap - Maps DbgVariable to corresponding DBG_VALUE
+ /// machine instruction.
+ DenseMap<const DbgVariable *, const MachineInstr *> DbgVariableToDbgInstMap;
- /// DbgValueStartMap - Tracks starting scope of variable DIEs.
- /// If the scope of an object begins sometime after the low pc value for the
- /// scope most closely enclosing the object, the object entry may have a
- /// DW_AT_start_scope attribute.
- DenseMap<const MachineInstr *, DbgVariable *> DbgValueStartMap;
+ /// DotDebugLocEntries - Collection of DotDebugLocEntry.
+ SmallVector<DotDebugLocEntry, 4> DotDebugLocEntries;
+
+ /// UseDotDebugLocEntry - DW_AT_location attributes for the DIEs in this set
+ /// idetifies corresponding .debug_loc entry offset.
+ SmallPtrSet<const DIE *, 4> UseDotDebugLocEntry;
+
+ /// VarToAbstractVarMap - Maps DbgVariable with corresponding Abstract
+ /// DbgVariable, if any.
+ DenseMap<const DbgVariable *, const DbgVariable *> VarToAbstractVarMap;
/// InliendSubprogramDIEs - Collection of subprgram DIEs that are marked
/// (at the end of the module) as DW_AT_inline.
/// ContainingTypeMap - This map is used to keep track of subprogram DIEs that
/// need DW_AT_containing_type attribute. This attribute points to a DIE that
/// corresponds to the MDNode mapped with the subprogram DIE.
- DenseMap<DIE *, MDNode *> ContainingTypeMap;
+ DenseMap<DIE *, const MDNode *> ContainingTypeMap;
typedef SmallVector<DbgScope *, 2> ScopeVector;
- SmallPtrSet<const MachineInstr *, 8> InsnsBeginScopeSet;
+
SmallPtrSet<const MachineInstr *, 8> InsnsEndScopeSet;
/// InlineInfo - Keep track of inlined functions and their location. This
/// information is used to populate debug_inlined section.
- typedef std::pair<MCSymbol*, DIE *> InlineInfoLabels;
- DenseMap<MDNode*, SmallVector<InlineInfoLabels, 4> > InlineInfo;
- SmallVector<MDNode *, 4> InlinedSPNodes;
+ typedef std::pair<const MCSymbol *, DIE *> InlineInfoLabels;
+ DenseMap<const MDNode *, SmallVector<InlineInfoLabels, 4> > InlineInfo;
+ SmallVector<const MDNode *, 4> InlinedSPNodes;
- /// InsnBeforeLabelMap - Maps instruction with label emitted before
+ // ProcessedSPNodes - This is a collection of subprogram MDNodes that
+ // are processed to create DIEs.
+ SmallPtrSet<const MDNode *, 16> ProcessedSPNodes;
+
+ /// LabelsBeforeInsn - Maps instruction with label emitted before
/// instruction.
- DenseMap<const MachineInstr *, MCSymbol *> InsnBeforeLabelMap;
+ DenseMap<const MachineInstr *, MCSymbol *> LabelsBeforeInsn;
- /// InsnAfterLabelMap - Maps instruction with label emitted after
+ /// LabelsAfterInsn - Maps instruction with label emitted after
/// instruction.
- DenseMap<const MachineInstr *, MCSymbol *> InsnAfterLabelMap;
+ DenseMap<const MachineInstr *, MCSymbol *> LabelsAfterInsn;
+
+ /// insnNeedsLabel - Collection of instructions that need a label to mark
+ /// a debuggging information entity.
+ SmallPtrSet<const MachineInstr *, 8> InsnNeedsLabel;
SmallVector<const MCSymbol *, 8> DebugRangeSymbols;
// section offsets and are created by EmitSectionLabels.
MCSymbol *DwarfFrameSectionSym, *DwarfInfoSectionSym, *DwarfAbbrevSectionSym;
MCSymbol *DwarfStrSectionSym, *TextSectionSym, *DwarfDebugRangeSectionSym;
-
-private:
-
- /// getSourceDirectoryAndFileIds - Return the directory and file ids that
- /// maps to the source id. Source id starts at 1.
- std::pair<unsigned, unsigned>
- getSourceDirectoryAndFileIds(unsigned SId) const {
- return SourceIds[SId-1];
- }
+ MCSymbol *DwarfDebugLocSectionSym;
+ MCSymbol *FunctionBeginSym, *FunctionEndSym;
- /// getNumSourceDirectories - Return the number of source directories in the
- /// debug info.
- unsigned getNumSourceDirectories() const {
- return DirectoryNames.size();
- }
-
- /// getSourceDirectoryName - Return the name of the directory corresponding
- /// to the id.
- const std::string &getSourceDirectoryName(unsigned Id) const {
- return DirectoryNames[Id - 1];
- }
-
- /// getSourceFileName - Return the name of the source file corresponding
- /// to the id.
- const std::string &getSourceFileName(unsigned Id) const {
- return SourceFileNames[Id - 1];
- }
+ DIEInteger *DIEIntegerOne;
+private:
/// getNumSourceIds - Return the number of unique source ids.
unsigned getNumSourceIds() const {
- return SourceIds.size();
+ return SourceIdMap.size();
}
/// assignAbbrevNumber - Define a unique number for the abbreviation.
/// addSourceLine - Add location information to specified debug information
/// entry.
- void addSourceLine(DIE *Die, const DIVariable *V);
- void addSourceLine(DIE *Die, const DIGlobal *G);
- void addSourceLine(DIE *Die, const DISubprogram *SP);
- void addSourceLine(DIE *Die, const DIType *Ty);
- void addSourceLine(DIE *Die, const DINameSpace *NS);
+ void addSourceLine(DIE *Die, DIVariable V);
+ void addSourceLine(DIE *Die, DIGlobalVariable G);
+ void addSourceLine(DIE *Die, DISubprogram SP);
+ void addSourceLine(DIE *Die, DIType Ty);
+ void addSourceLine(DIE *Die, DINameSpace NS);
/// addAddress - Add an address attribute to a die based on the location
/// provided.
void addAddress(DIE *Die, unsigned Attribute,
const MachineLocation &Location);
+ /// addRegisterAddress - Add register location entry in variable DIE.
+ bool addRegisterAddress(DIE *Die, const MachineOperand &MO);
+
+ /// addConstantValue - Add constant value entry in variable DIE.
+ bool addConstantValue(DIE *Die, const MachineOperand &MO);
+ bool addConstantValue(DIE *Die, ConstantInt *CI, bool Unsigned);
+
+ /// addConstantFPValue - Add constant value entry in variable DIE.
+ bool addConstantFPValue(DIE *Die, const MachineOperand &MO);
+
/// 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
void addBlockByrefAddress(DbgVariable *&DV, DIE *Die, unsigned Attribute,
const MachineLocation &Location);
+ /// addVariableAddress - Add DW_AT_location attribute for a DbgVariable based
+ /// on provided frame index.
+ void addVariableAddress(DbgVariable *&DV, DIE *Die, int64_t FI);
+
/// addToContextOwner - Add Die into the list of its context owner's children.
void addToContextOwner(DIE *Die, DIDescriptor Context);
/// given DIType.
DIE *getOrCreateTypeDIE(DIType Ty);
+ /// getOrCreateTemplateTypeParameterDIE - Find existing DIE or create new DIE
+ /// for the given DITemplateTypeParameter.
+ DIE *getOrCreateTemplateTypeParameterDIE(DITemplateTypeParameter TP);
+
+ /// getOrCreateTemplateValueParameterDIE - Find existing DIE or create new DIE
+ /// for the given DITemplateValueParameter.
+ DIE *getOrCreateTemplateValueParameterDIE(DITemplateValueParameter TVP);
+
void addPubTypes(DISubprogram SP);
/// constructTypeDIE - Construct basic type die from DIBasicType.
/// constructEnumTypeDIE - Construct enum type DIE from DIEnumerator.
DIE *constructEnumTypeDIE(DIEnumerator ETy);
- /// createGlobalVariableDIE - Create new DIE using GV.
- DIE *createGlobalVariableDIE(const DIGlobalVariable &GV);
-
/// createMemberDIE - Create new member DIE.
- DIE *createMemberDIE(const DIDerivedType &DT);
+ DIE *createMemberDIE(DIDerivedType DT);
/// createSubprogramDIE - Create new DIE using SP.
- DIE *createSubprogramDIE(const DISubprogram &SP, bool MakeDecl = false);
+ DIE *createSubprogramDIE(DISubprogram SP);
- /// getUpdatedDbgScope - Find or create DbgScope assicated with
- /// the instruction. Initialize scope and update scope hierarchy.
- DbgScope *getUpdatedDbgScope(MDNode *N, const MachineInstr *MI,
- MDNode *InlinedAt);
+ /// getOrCreateDbgScope - Create DbgScope for the scope.
+ DbgScope *getOrCreateDbgScope(const MDNode *Scope, const MDNode *InlinedAt);
- /// createDbgScope - Create DbgScope for the scope.
- void createDbgScope(MDNode *Scope, MDNode *InlinedAt);
-
- DbgScope *getOrCreateAbstractScope(MDNode *N);
+ DbgScope *getOrCreateAbstractScope(const MDNode *N);
/// findAbstractVariable - Find abstract variable associated with Var.
- DbgVariable *findAbstractVariable(DIVariable &Var, unsigned FrameIdx,
- DebugLoc Loc);
- DbgVariable *findAbstractVariable(DIVariable &Var, const MachineInstr *MI,
- DebugLoc Loc);
+ DbgVariable *findAbstractVariable(DIVariable &Var, DebugLoc Loc);
/// updateSubprogramScopeDIE - 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(MDNode *SPNode);
+ DIE *updateSubprogramScopeDIE(const MDNode *SPNode);
/// constructLexicalScope - Construct new DW_TAG_lexical_block
/// for this scope and attach DW_AT_low_pc/DW_AT_high_pc labels.
///
void emitEndOfLineMatrix(unsigned SectionEnd);
- /// emitDebugLines - Emit source line information.
- ///
- void emitDebugLines();
-
/// emitCommonDebugFrame - Emit common frame info into a debug frame section.
///
void emitCommonDebugFrame();
/// GetOrCreateSourceID - Look up the source id with the given directory and
/// 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(StringRef DirName, StringRef FileName);
+ /// in the SourceIds map.
+ unsigned GetOrCreateSourceID(StringRef FullName);
- void constructCompileUnit(MDNode *N);
+ /// constructCompileUnit - Create new CompileUnit for the given
+ /// metadata node with tag DW_TAG_compile_unit.
+ void constructCompileUnit(const MDNode *N);
- void constructGlobalVariableDIE(MDNode *N);
+ /// getCompielUnit - Get CompileUnit DIE.
+ CompileUnit *getCompileUnit(const MDNode *N) const;
- void constructSubprogramDIE(MDNode *N);
+ /// constructGlobalVariableDIE - Construct global variable DIE.
+ void constructGlobalVariableDIE(const 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);
+ /// construct SubprogramDIE - Construct subprogram DIE.
+ void constructSubprogramDIE(const MDNode *N);
/// recordSourceLine - Register a source line with debug info. Returns the
/// unique label that was emitted and which provides correspondence to
/// the source line list.
- MCSymbol *recordSourceLine(unsigned Line, unsigned Col, MDNode *Scope);
-
- /// getSourceLineCount - Return the number of source lines in the debug
- /// info.
- unsigned getSourceLineCount() const {
- return Lines.size();
- }
+ MCSymbol *recordSourceLine(unsigned Line, unsigned Col, const MDNode *Scope);
+ /// recordVariableFrameIndex - Record a variable's index.
+ void recordVariableFrameIndex(const DbgVariable *V, int Index);
+
+ /// findVariableFrameIndex - Return true if frame index for the variable
+ /// is found. Update FI to hold value of the index.
+ bool findVariableFrameIndex(const DbgVariable *V, int *FI);
+
+ /// findDbgScope - Find DbgScope for the debug loc attached with an
+ /// instruction.
+ DbgScope *findDbgScope(const MachineInstr *MI);
+
/// identifyScopeMarkers() - Indentify instructions that are marking
/// beginning of or end of a scope.
void identifyScopeMarkers();
/// and collect DbgScopes. Return true, if atleast one scope was found.
bool extractScopeInformation();
+ /// addCurrentFnArgument - If Var is an current function argument that add
+ /// it in CurrentFnArguments list.
+ bool addCurrentFnArgument(const MachineFunction *MF,
+ DbgVariable *Var, DbgScope *Scope);
+
/// collectVariableInfo - Populate DbgScope entries with variables' info.
- void collectVariableInfo();
+ void collectVariableInfo(const MachineFunction *,
+ SmallPtrSet<const MDNode *, 16> &ProcessedVars);
+ /// collectVariableInfoFromMMITable - Collect variable information from
+ /// side table maintained by MMI.
+ void collectVariableInfoFromMMITable(const MachineFunction * MF,
+ SmallPtrSet<const MDNode *, 16> &P);
public:
//===--------------------------------------------------------------------===//
// Main entry points.
///
void endFunction(const MachineFunction *MF);
- /// beginScope - Process beginning of a scope.
- void beginScope(const MachineInstr *MI);
+ /// getLabelBeforeInsn - Return Label preceding the instruction.
+ const MCSymbol *getLabelBeforeInsn(const MachineInstr *MI);
+
+ /// getLabelAfterInsn - Return Label immediately following the instruction.
+ const MCSymbol *getLabelAfterInsn(const MachineInstr *MI);
+
+ /// beginInstruction - Process beginning of an instruction.
+ void beginInstruction(const MachineInstr *MI);
- /// endScope - Prcess end of a scope.
- void endScope(const MachineInstr *MI);
+ /// endInstruction - Prcess end of an instruction.
+ void endInstruction(const MachineInstr *MI);
};
} // End of namespace llvm
projects / oota-llvm.git / blobdiff