#include "llvm/ADT/StringExtras.h"
#include "llvm/ADT/UniqueVector.h"
#include "llvm/Module.h"
-#include "llvm/Type.h"
+#include "llvm/DerivedTypes.h"
#include "llvm/CodeGen/AsmPrinter.h"
#include "llvm/CodeGen/MachineModuleInfo.h"
#include "llvm/CodeGen/MachineFrameInfo.h"
using namespace llvm;
using namespace llvm::dwarf;
+static RegisterPass<DwarfWriter>
+X("dwarfwriter", "DWARF Information Writer");
+char DwarfWriter::ID = 0;
+
namespace llvm {
//===----------------------------------------------------------------------===//
class DIE;
class DIEValue;
+//===----------------------------------------------------------------------===//
+/// Utility routines.
+///
+/// getGlobalVariablesUsing - Return all of the GlobalVariables which have the
+/// specified value in their initializer somewhere.
+static void
+getGlobalVariablesUsing(Value *V, std::vector<GlobalVariable*> &Result) {
+ // Scan though value users.
+ for (Value::use_iterator I = V->use_begin(), E = V->use_end(); I != E; ++I) {
+ if (GlobalVariable *GV = dyn_cast<GlobalVariable>(*I)) {
+ // If the user is a GlobalVariable then add to result.
+ Result.push_back(GV);
+ } else if (Constant *C = dyn_cast<Constant>(*I)) {
+ // If the user is a constant variable then scan its users
+ getGlobalVariablesUsing(C, Result);
+ }
+ }
+}
+
+/// getGlobalVariablesUsing - Return all of the GlobalVariables that use the
+/// named GlobalVariable.
+static void
+getGlobalVariablesUsing(Module &M, const std::string &RootName,
+ std::vector<GlobalVariable*> &Result) {
+ std::vector<const Type*> FieldTypes;
+ FieldTypes.push_back(Type::Int32Ty);
+ FieldTypes.push_back(Type::Int32Ty);
+
+ // Get the GlobalVariable root.
+ GlobalVariable *UseRoot = M.getGlobalVariable(RootName,
+ StructType::get(FieldTypes));
+
+ // If present and linkonce then scan for users.
+ if (UseRoot && UseRoot->hasLinkOnceLinkage())
+ getGlobalVariablesUsing(UseRoot, Result);
+}
+
//===----------------------------------------------------------------------===//
/// DWLabel - Labels are used to track locations in the assembler file.
/// Labels appear in the form @verbatim <prefix><Tag><Number> @endverbatim,
std::vector<DIE *> Dies;
public:
+ CompileUnit(unsigned I, DIE *D)
+ : ID(I), Die(D), DescToDieMap(), GVToDieMap(), DescToDIEntryMap(),
+ GVToDIEntryMap(), Globals(), DiesSet(InitDiesSetSize), Dies()
+ {}
+
CompileUnit(CompileUnitDesc *CUD, unsigned I, DIE *D)
: Desc(CUD)
, ID(I)
};
+//===----------------------------------------------------------------------===//
+/// SourceLineInfo - 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.
+ unsigned LabelID; // Label in code ID number.
+public:
+ SrcLineInfo(unsigned L, unsigned C, unsigned S, unsigned I)
+ : Line(L), Column(C), SourceID(S), LabelID(I) {}
+
+ // Accessors
+ unsigned getLine() const { return Line; }
+ unsigned getColumn() const { return Column; }
+ unsigned getSourceID() const { return SourceID; }
+ unsigned getLabelID() const { return LabelID; }
+};
+
+
//===----------------------------------------------------------------------===//
/// SrcFileInfo - This class is used to track source information.
///
}
};
+//===----------------------------------------------------------------------===//
+/// DbgVariable - This class is used to track local variable information.
+///
+class DbgVariable {
+private:
+ DIVariable *Var; // Variable Descriptor.
+ unsigned FrameIndex; // Variable frame index.
+
+public:
+ DbgVariable(DIVariable *V, unsigned I) : Var(V), FrameIndex(I) {}
+
+ // Accessors.
+ DIVariable *getVariable() const { return Var; }
+ unsigned getFrameIndex() const { return FrameIndex; }
+};
+
+//===----------------------------------------------------------------------===//
+/// DbgScope - This class is used to track scope information.
+///
+class DbgScope {
+private:
+ DbgScope *Parent; // Parent to this scope.
+ DIDescriptor *Desc; // Debug info descriptor for scope.
+ // Either subprogram or block.
+ unsigned StartLabelID; // Label ID of the beginning of scope.
+ unsigned EndLabelID; // Label ID of the end of scope.
+ SmallVector<DbgScope *, 8> Scopes; // Scopes defined in scope.
+ SmallVector<DbgVariable *, 32> Variables;// Variables declared in scope.
+
+public:
+ DbgScope(DbgScope *P, DIDescriptor *D)
+ : Parent(P), Desc(D), StartLabelID(0), EndLabelID(0), Scopes(), Variables()
+ {}
+ ~DbgScope();
+
+ // Accessors.
+ DbgScope *getParent() const { return Parent; }
+ DIDescriptor *getDesc() const { return Desc; }
+ unsigned getStartLabelID() const { return StartLabelID; }
+ unsigned getEndLabelID() const { return EndLabelID; }
+ SmallVector<DbgScope *, 8> &getScopes() { return Scopes; }
+ SmallVector<DbgVariable *, 32> &getVariables() { return Variables; }
+ void setStartLabelID(unsigned S) { StartLabelID = S; }
+ void setEndLabelID(unsigned E) { EndLabelID = E; }
+
+ /// AddScope - Add a scope to the scope.
+ ///
+ void AddScope(DbgScope *S) { Scopes.push_back(S); }
+
+ /// AddVariable - Add a variable to the scope.
+ ///
+ void AddVariable(DbgVariable *V) { Variables.push_back(V); }
+};
+
//===----------------------------------------------------------------------===//
/// DwarfDebug - Emits Dwarf debug directives.
///
/// CompileUnits - All the compile units involved in this build. The index
/// of each entry in this vector corresponds to the sources in MMI.
std::vector<CompileUnit *> CompileUnits;
- DenseMap<GlobalVariable *, CompileUnit *> DW_CUs;
+ DenseMap<Value *, CompileUnit *> DW_CUs;
/// AbbreviationsSet - Used to uniquely define abbreviations.
///
// SourceFiles - Uniquing vector for source files.
UniqueVector<SrcFileInfo> SrcFiles;
+ // Lines - List of of source line correspondence.
+ std::vector<SrcLineInfo> Lines;
+
FoldingSet<DIEValue> ValuesSet;
/// Values - A list of all the unique values in use.
///
bool shouldEmit;
+ // RootScope - Top level scope for the current function.
+ //
+ DbgScope *RootDbgScope;
+
+ // DbgScopeMap - Tracks the scopes in the current function.
+ DenseMap<GlobalVariable *, DbgScope *> DbgScopeMap;
+
+ // DbgLabelIDList - One entry per assigned label. Normally the entry is equal to
+ // the list index(+1). If the entry is zero then the label has been deleted.
+ // Any other value indicates the label has been deleted by is mapped to
+ // another label.
+ SmallVector<unsigned, 32> DbgLabelIDList;
+
+ /// NextLabelID - Return the next unique label id.
+ ///
+ unsigned NextLabelID() {
+ unsigned ID = (unsigned)DbgLabelIDList.size() + 1;
+ DbgLabelIDList.push_back(ID);
+ return ID;
+ }
+
+ /// RemapLabel - Indicate that a label has been merged into another.
+ ///
+ void RemapLabel(unsigned OldLabelID, unsigned NewLabelID) {
+ assert(0 < OldLabelID && OldLabelID <= DbgLabelIDList.size() &&
+ "Old label ID out of range.");
+ assert(NewLabelID <= DbgLabelIDList.size() &&
+ "New label ID out of range.");
+ DbgLabelIDList[OldLabelID - 1] = NewLabelID;
+ }
+
+ /// MappedLabel - Find out the label's final ID. Zero indicates deletion.
+ /// ID != Mapped ID indicates that the label was folded into another label.
+ unsigned MappedLabel(unsigned LabelID) const {
+ assert(LabelID <= DbgLabelIDList.size() && "Debug label ID out of range.");
+ return LabelID ? DbgLabelIDList[LabelID - 1] : 0;
+ }
+
struct FunctionDebugFrameInfo {
unsigned Number;
std::vector<MachineMove> Moves;
}
}
+ /// AddSourceLine - Add location information to specified debug information
+ /// entry.
+ void AddSourceLine(DIE *Die, DIVariable *V) {
+ unsigned FileID = 0;
+ unsigned Line = V->getLineNumber();
+ if (V->getVersion() < DIDescriptor::Version7) {
+ // Version6 or earlier. Use compile unit info to get file id.
+ CompileUnit *Unit = FindCompileUnit(V->getCompileUnit());
+ FileID = Unit->getID();
+ } else {
+ // Version7 or newer, use filename and directory info from DIVariable
+ // directly.
+ unsigned DID = Directories.idFor(V->getDirectory());
+ FileID = SrcFiles.idFor(SrcFileInfo(DID, V->getFilename()));
+ }
+ AddUInt(Die, DW_AT_decl_file, 0, FileID);
+ AddUInt(Die, DW_AT_decl_line, 0, Line);
+ }
+
/// AddSourceLine - Add location information to specified debug information
/// entry.
void AddSourceLine(DIE *Die, DIGlobal *G) {
return VariableDie;
}
+ /// NewScopeVariable - Create a new scope variable.
+ ///
+ DIE *NewDbgScopeVariable(DbgVariable *DV, CompileUnit *Unit) {
+ // Get the descriptor.
+ DIVariable *VD = DV->getVariable();
+
+ // Translate tag to proper Dwarf tag. The result variable is dropped for
+ // now.
+ unsigned Tag;
+ switch (VD->getTag()) {
+ case DW_TAG_return_variable: return NULL;
+ case DW_TAG_arg_variable: Tag = DW_TAG_formal_parameter; break;
+ case DW_TAG_auto_variable: // fall thru
+ default: Tag = DW_TAG_variable; break;
+ }
+
+ // Define variable debug information entry.
+ DIE *VariableDie = new DIE(Tag);
+ AddString(VariableDie, DW_AT_name, DW_FORM_string, VD->getName());
+
+ // Add source line info if available.
+ AddSourceLine(VariableDie, VD);
+
+ // Add variable type.
+ AddType(Unit, VariableDie, VD->getType());
+
+ // Add variable address.
+ MachineLocation Location;
+ Location.set(RI->getFrameRegister(*MF),
+ RI->getFrameIndexOffset(*MF, DV->getFrameIndex()));
+ AddAddress(VariableDie, DW_AT_location, Location);
+
+ return VariableDie;
+ }
+
+ unsigned RecordSourceLine(Value *V, unsigned Line, unsigned Col) {
+ CompileUnit *Unit = DW_CUs[V];
+ assert (Unit && "Unable to find CompileUnit");
+ unsigned ID = NextLabelID();
+ Lines.push_back(SrcLineInfo(Line, Col, Unit->getID(), ID));
+ return ID;
+ }
+
+ unsigned getRecordSourceLineCount() {
+ return Lines.size();
+ }
+
+ unsigned RecordSource(const std::string &Directory,
+ const std::string &File) {
+ unsigned DID = Directories.insert(Directory);
+ return SrcFiles.insert(SrcFileInfo(DID,File));
+ }
+
+ /// RecordRegionStart - Indicate the start of a region.
+ ///
+ unsigned RecordRegionStart(GlobalVariable *V) {
+ DbgScope *Scope = getOrCreateScope(V);
+ unsigned ID = NextLabelID();
+ if (!Scope->getStartLabelID()) Scope->setStartLabelID(ID);
+ return ID;
+ }
+
+ /// RecordRegionEnd - Indicate the end of a region.
+ ///
+ unsigned RecordRegionEnd(GlobalVariable *V) {
+ DbgScope *Scope = getOrCreateScope(V);
+ unsigned ID = NextLabelID();
+ Scope->setEndLabelID(ID);
+ return ID;
+ }
+
+ /// RecordVariable - Indicate the declaration of a local variable.
+ ///
+ void RecordVariable(GlobalVariable *GV, unsigned FrameIndex) {
+ DbgScope *Scope = getOrCreateScope(GV);
+ DIVariable *VD = new DIVariable(GV);
+ DbgVariable *DV = new DbgVariable(VD, FrameIndex);
+ Scope->AddVariable(DV);
+ }
+
+ /// getOrCreateScope - Returns the scope associated with the given descriptor.
+ ///
+ DbgScope *getOrCreateScope(GlobalVariable *V) {
+ DbgScope *&Slot = DbgScopeMap[V];
+ if (!Slot) {
+ // FIXME - breaks down when the context is an inlined function.
+ DIDescriptor ParentDesc;
+ DIBlock *DB = new DIBlock(V);
+ if (DIBlock *Block = dyn_cast<DIBlock>(DB)) {
+ ParentDesc = Block->getContext();
+ }
+ DbgScope *Parent = ParentDesc.isNull() ?
+ getOrCreateScope(ParentDesc.getGV()) : NULL;
+ Slot = new DbgScope(Parent, DB);
+ if (Parent) {
+ Parent->AddScope(Slot);
+ } else if (RootDbgScope) {
+ // FIXME - Add inlined function scopes to the root so we can delete
+ // them later. Long term, handle inlined functions properly.
+ RootDbgScope->AddScope(Slot);
+ } else {
+ // First function is top level function.
+ RootDbgScope = Slot;
+ }
+ }
+ return Slot;
+ }
+
+ /// ConstructDbgScope - Construct the components of a scope.
+ ///
+ void ConstructDbgScope(DbgScope *ParentScope,
+ unsigned ParentStartID, unsigned ParentEndID,
+ DIE *ParentDie, CompileUnit *Unit) {
+ // Add variables to scope.
+ SmallVector<DbgVariable *, 32> &Variables = ParentScope->getVariables();
+ for (unsigned i = 0, N = Variables.size(); i < N; ++i) {
+ DIE *VariableDie = NewDbgScopeVariable(Variables[i], Unit);
+ if (VariableDie) ParentDie->AddChild(VariableDie);
+ }
+
+ // Add nested scopes.
+ SmallVector<DbgScope *, 8> &Scopes = ParentScope->getScopes();
+ for (unsigned j = 0, M = Scopes.size(); j < M; ++j) {
+ // Define the Scope debug information entry.
+ DbgScope *Scope = Scopes[j];
+ // FIXME - Ignore inlined functions for the time being.
+ if (!Scope->getParent()) continue;
+
+ unsigned StartID = MappedLabel(Scope->getStartLabelID());
+ unsigned EndID = MappedLabel(Scope->getEndLabelID());
+
+ // Ignore empty scopes.
+ if (StartID == EndID && StartID != 0) continue;
+ if (Scope->getScopes().empty() && Scope->getVariables().empty()) continue;
+
+ if (StartID == ParentStartID && EndID == ParentEndID) {
+ // Just add stuff to the parent scope.
+ ConstructDbgScope(Scope, ParentStartID, ParentEndID, ParentDie, Unit);
+ } else {
+ DIE *ScopeDie = new DIE(DW_TAG_lexical_block);
+
+ // Add the scope bounds.
+ if (StartID) {
+ AddLabel(ScopeDie, DW_AT_low_pc, DW_FORM_addr,
+ DWLabel("label", StartID));
+ } else {
+ AddLabel(ScopeDie, DW_AT_low_pc, DW_FORM_addr,
+ DWLabel("func_begin", SubprogramCount));
+ }
+ if (EndID) {
+ AddLabel(ScopeDie, DW_AT_high_pc, DW_FORM_addr,
+ DWLabel("label", EndID));
+ } else {
+ AddLabel(ScopeDie, DW_AT_high_pc, DW_FORM_addr,
+ DWLabel("func_end", SubprogramCount));
+ }
+
+ // Add the scope contents.
+ ConstructDbgScope(Scope, StartID, EndID, ScopeDie, Unit);
+ ParentDie->AddChild(ScopeDie);
+ }
+ }
+ }
+
+ /// ConstructRootDbgScope - Construct the scope for the subprogram.
+ ///
+ void ConstructRootDbgScope(DbgScope *RootScope) {
+ // Exit if there is no root scope.
+ if (!RootScope) return;
+
+ // Get the subprogram debug information entry.
+ DISubprogram *SPD = cast<DISubprogram>(RootScope->getDesc());
+
+ // Get the compile unit context.
+ CompileUnit *Unit = FindCompileUnit(SPD->getCompileUnit());
+
+ // Get the subprogram die.
+ DIE *SPDie = Unit->getDieMapSlotFor(SPD->getGV());
+ assert(SPDie && "Missing subprogram descriptor");
+
+ // Add the function bounds.
+ AddLabel(SPDie, DW_AT_low_pc, DW_FORM_addr,
+ DWLabel("func_begin", SubprogramCount));
+ AddLabel(SPDie, DW_AT_high_pc, DW_FORM_addr,
+ DWLabel("func_end", SubprogramCount));
+ MachineLocation Location(RI->getFrameRegister(*MF));
+ AddAddress(SPDie, DW_AT_frame_base, Location);
+
+ ConstructDbgScope(RootScope, 0, 0, SPDie, Unit);
+ }
+
+ /// ConstructDefaultDbgScope - Construct a default scope for the subprogram.
+ ///
+ void ConstructDefaultDbgScope(MachineFunction *MF) {
+ // Find the correct subprogram descriptor.
+ std::string SPName = "llvm.dbg.subprograms";
+ std::vector<GlobalVariable*> Result;
+ getGlobalVariablesUsing(*M, SPName, Result);
+ for (std::vector<GlobalVariable *>::iterator I = Result.begin(),
+ E = Result.end(); I != E; ++I) {
+
+ DISubprogram *SPD = new DISubprogram(*I);
+
+ if (SPD->getName() == MF->getFunction()->getName()) {
+ // Get the compile unit context.
+ CompileUnit *Unit = FindCompileUnit(SPD->getCompileUnit());
+
+ // Get the subprogram die.
+ DIE *SPDie = Unit->getDieMapSlotFor(SPD->getGV());
+ assert(SPDie && "Missing subprogram descriptor");
+
+ // Add the function bounds.
+ AddLabel(SPDie, DW_AT_low_pc, DW_FORM_addr,
+ DWLabel("func_begin", SubprogramCount));
+ AddLabel(SPDie, DW_AT_high_pc, DW_FORM_addr,
+ DWLabel("func_end", SubprogramCount));
+
+ MachineLocation Location(RI->getFrameRegister(*MF));
+ AddAddress(SPDie, DW_AT_frame_base, Location);
+ return;
+ }
+ }
+#if 0
+ // FIXME: This is causing an abort because C++ mangled names are compared
+ // with their unmangled counterparts. See PR2885. Don't do this assert.
+ assert(0 && "Couldn't find DIE for machine function!");
+#endif
+ }
+
/// ConstructScope - Construct the components of a scope.
///
void ConstructScope(DebugScope *ParentScope,
Asm->EOL();
}
+ /// ConstructCompileUnits - Create a compile unit DIEs.
+ void ConstructCompileUnits() {
+ std::string CUName = "llvm.dbg.compile_units";
+ std::vector<GlobalVariable*> Result;
+ getGlobalVariablesUsing(*M, CUName, Result);
+ for (std::vector<GlobalVariable *>::iterator RI = Result.begin(),
+ RE = Result.end(); RI != RE; ++RI) {
+ DICompileUnit *DIUnit = new DICompileUnit(*RI);
+ unsigned ID = RecordSource(DIUnit->getDirectory(),
+ DIUnit->getFilename());
+
+ DIE *Die = new DIE(DW_TAG_compile_unit);
+ AddSectionOffset(Die, DW_AT_stmt_list, DW_FORM_data4,
+ DWLabel("section_line", 0), DWLabel("section_line", 0),
+ false);
+ AddString(Die, DW_AT_producer, DW_FORM_string, DIUnit->getProducer());
+ AddUInt(Die, DW_AT_language, DW_FORM_data1, DIUnit->getLanguage());
+ AddString(Die, DW_AT_name, DW_FORM_string, DIUnit->getFilename());
+ if (!DIUnit->getDirectory().empty())
+ AddString(Die, DW_AT_comp_dir, DW_FORM_string, DIUnit->getDirectory());
+
+ CompileUnit *Unit = new CompileUnit(ID, Die);
+ DW_CUs[DIUnit->getGV()] = Unit;
+ }
+ }
+
/// ConstructCompileUnitDIEs - Create a compile unit DIE for each source and
/// header file.
void ConstructCompileUnitDIEs() {
}
}
+ /// ConstructGlobalVariableDIEs - Create DIEs for each of the externally
+ /// visible global variables.
+ void ConstructGlobalVariableDIEs() {
+ std::string GVName = "llvm.dbg.global_variables";
+ std::vector<GlobalVariable*> Result;
+ getGlobalVariablesUsing(*M, GVName, Result);
+ for (std::vector<GlobalVariable *>::iterator GVI = Result.begin(),
+ GVE = Result.end(); GVI != GVE; ++GVI) {
+ DIGlobalVariable *DI_GV = new DIGlobalVariable(*GVI);
+ CompileUnit *DW_Unit = FindCompileUnit(DI_GV->getCompileUnit());
+
+ // Check for pre-existence.
+ DIE *&Slot = DW_Unit->getDieMapSlotFor(DI_GV->getGV());
+ if (Slot) continue;
+
+ DIE *VariableDie = new DIE(DW_TAG_variable);
+ AddString(VariableDie, DW_AT_name, DW_FORM_string, DI_GV->getName());
+ const std::string &LinkageName = DI_GV->getLinkageName();
+ if (!LinkageName.empty())
+ AddString(VariableDie, DW_AT_MIPS_linkage_name, DW_FORM_string,
+ LinkageName);
+ AddType(DW_Unit, VariableDie, DI_GV->getType());
+
+ if (!DI_GV->isLocalToUnit())
+ AddUInt(VariableDie, DW_AT_external, DW_FORM_flag, 1);
+
+ // Add source line info, if available.
+ AddSourceLine(VariableDie, DI_GV);
+
+ // Add address.
+ DIEBlock *Block = new DIEBlock();
+ AddUInt(Block, 0, DW_FORM_data1, DW_OP_addr);
+ AddObjectLabel(Block, 0, DW_FORM_udata,
+ Asm->getGlobalLinkName(DI_GV->getGV()));
+ AddBlock(VariableDie, DW_AT_location, 0, Block);
+
+ //Add to map.
+ Slot = VariableDie;
+
+ //Add to context owner.
+ DW_Unit->getDie()->AddChild(VariableDie);
+
+ //Expose as global. FIXME - need to check external flag.
+ DW_Unit->AddGlobal(DI_GV->getName(), VariableDie);
+ }
+ }
+
/// ConstructGlobalDIEs - Create DIEs for each of the externally visible
/// global variables.
void ConstructGlobalDIEs() {
}
}
+ /// ConstructSubprograms - Create DIEs for each of the externally visible
+ /// subprograms.
+ void ConstructSubprograms() {
+
+ std::string SPName = "llvm.dbg.subprograms";
+ std::vector<GlobalVariable*> Result;
+ getGlobalVariablesUsing(*M, SPName, Result);
+ for (std::vector<GlobalVariable *>::iterator RI = Result.begin(),
+ RE = Result.end(); RI != RE; ++RI) {
+
+ DISubprogram *SP = new DISubprogram(*RI);
+ CompileUnit *Unit = FindCompileUnit(SP->getCompileUnit());
+
+ // Check for pre-existence.
+ DIE *&Slot = Unit->getDieMapSlotFor(SP->getGV());
+ if (Slot) continue;
+
+ DIE *SubprogramDie = new DIE(DW_TAG_subprogram);
+ AddString(SubprogramDie, DW_AT_name, DW_FORM_string, SP->getName());
+ const std::string &LinkageName = SP->getLinkageName();
+ if (!LinkageName.empty())
+ AddString(SubprogramDie, DW_AT_MIPS_linkage_name, DW_FORM_string,
+ LinkageName);
+ DIType SPTy = SP->getType();
+ AddType(Unit, SubprogramDie, SPTy);
+ if (!SP->isLocalToUnit())
+ AddUInt(SubprogramDie, DW_AT_external, DW_FORM_flag, 1);
+ AddUInt(SubprogramDie, DW_AT_prototyped, DW_FORM_flag, 1);
+
+ AddSourceLine(SubprogramDie, SP);
+ //Add to map.
+ Slot = SubprogramDie;
+ //Add to context owner.
+ Unit->getDie()->AddChild(SubprogramDie);
+ //Expose as global.
+ Unit->AddGlobal(SP->getName(), SubprogramDie);
+ }
+ }
+
/// ConstructSubprogramDIEs - Create DIEs for each of the externally visible
/// subprograms.
void ConstructSubprogramDIEs() {
, SectionSourceLines()
, didInitial(false)
, shouldEmit(false)
+ , RootDbgScope(NULL)
{
}
virtual ~DwarfDebug() {
delete Values[j];
}
+ /// SetDebugInfo - Create global DIEs and emit initial debug info sections.
+ /// This is inovked by the target AsmPrinter.
+ void SetDebugInfo() {
+ // FIXME - Check if the module has debug info or not.
+ // Create all the compile unit DIEs.
+ ConstructCompileUnits();
+
+ // Create DIEs for each of the externally visible global variables.
+ ConstructGlobalVariableDIEs();
+
+ // Create DIEs for each of the externally visible subprograms.
+ ConstructSubprograms();
+
+ // Prime section data.
+ SectionMap.insert(TAI->getTextSection());
+
+ // Print out .file directives to specify files for .loc directives. These
+ // are printed out early so that they precede any .loc directives.
+ if (TAI->hasDotLocAndDotFile()) {
+ for (unsigned i = 1, e = SrcFiles.size(); i <= e; ++i) {
+ sys::Path FullPath(Directories[SrcFiles[i].getDirectoryID()]);
+ bool AppendOk = FullPath.appendComponent(SrcFiles[i].getName());
+ assert(AppendOk && "Could not append filename to directory!");
+ AppendOk = false;
+ Asm->EmitFile(i, FullPath.toString());
+ Asm->EOL();
+ }
+ }
+
+ // Emit initial sections
+ EmitInitial();
+ }
+
/// SetModuleInfo - Set machine module information when it's known that pass
/// manager has created it. Set by the target AsmPrinter.
void SetModuleInfo(MachineModuleInfo *mmi) {
Asm->EOL("FDE CIE offset");
- EmitReference("eh_func_begin", EHFrameInfo.Number, true);
+ EmitReference("eh_func_begin", EHFrameInfo.Number, true, true);
Asm->EOL("FDE initial location");
EmitDifference("eh_func_end", EHFrameInfo.Number,
- "eh_func_begin", EHFrameInfo.Number);
+ "eh_func_begin", EHFrameInfo.Number, true);
Asm->EOL("FDE address range");
// If there is a personality and landing pads then point to the language
/// DwarfWriter Implementation
///
-DwarfWriter::DwarfWriter(raw_ostream &OS, AsmPrinter *A,
- const TargetAsmInfo *T) {
- DE = new DwarfException(OS, A, T);
- DD = new DwarfDebug(OS, A, T);
+DwarfWriter::DwarfWriter() : ImmutablePass(&ID), DD(NULL), DE(NULL) {
}
DwarfWriter::~DwarfWriter() {
delete DD;
}
-/// SetModuleInfo - Set machine module info when it's known that pass manager
-/// has created it. Set by the target AsmPrinter.
-void DwarfWriter::SetModuleInfo(MachineModuleInfo *MMI) {
- DD->SetModuleInfo(MMI);
- DE->SetModuleInfo(MMI);
-}
-
/// BeginModule - Emit all Dwarf sections that should come prior to the
/// content.
-void DwarfWriter::BeginModule(Module *M) {
+void DwarfWriter::BeginModule(Module *M,
+ MachineModuleInfo *MMI,
+ raw_ostream &OS, AsmPrinter *A,
+ const TargetAsmInfo *T) {
+ DE = new DwarfException(OS, A, T);
+ DD = new DwarfDebug(OS, A, T);
DE->BeginModule(M);
DD->BeginModule(M);
+ DD->SetModuleInfo(MMI);
+ DE->SetModuleInfo(MMI);
}
/// EndModule - Emit all Dwarf sections that should come after the content.
projects / oota-llvm.git / blobdiff