#define DEBUG_TYPE "dwarfdebug"
#include "DwarfDebug.h"
#include "DIE.h"
+#include "DwarfAccelTable.h"
#include "DwarfCompileUnit.h"
#include "llvm/Constants.h"
#include "llvm/Module.h"
#include "llvm/Instructions.h"
+#include "llvm/ADT/Triple.h"
#include "llvm/CodeGen/MachineFunction.h"
#include "llvm/CodeGen/MachineModuleInfo.h"
#include "llvm/MC/MCAsmInfo.h"
cl::desc("Make an absence of debug location information explicit."),
cl::init(false));
+static cl::opt<bool> DwarfAccelTables("dwarf-accel-tables", cl::Hidden,
+ cl::desc("Output prototype dwarf accelerator tables."),
+ cl::init(false));
+
namespace {
const char *DWARFGroupName = "DWARF Emission";
const char *DbgTimerName = "DWARF Debug Writer";
if (getName() == DT.getName())
return (DT.getTypeDerivedFrom());
}
- return Ty;
}
return Ty;
}
DwarfDebug::DwarfDebug(AsmPrinter *A, Module *M)
: Asm(A), MMI(Asm->MMI), FirstCU(0),
AbbreviationsSet(InitAbbreviationsSetSize),
+ SourceIdMap(DIEValueAllocator), StringPool(DIEValueAllocator),
PrevLabel(NULL) {
NextStringPoolNumber = 0;
DwarfStrSectionSym = TextSectionSym = 0;
DwarfDebugRangeSectionSym = DwarfDebugLocSectionSym = 0;
FunctionBeginSym = FunctionEndSym = 0;
+
+ // Turn on accelerator tables for Darwin.
+ if (Triple(M->getTargetTriple()).isOSDarwin())
+ DwarfAccelTables = true;
+
{
NamedRegionTimer T(DbgTimerName, DWARFGroupName, TimePassesIsEnabled);
beginModule(M);
DwarfDebug::~DwarfDebug() {
}
+/// EmitSectionSym - Switch to the specified MCSection and emit an assembler
+/// temporary label to it if SymbolStem is specified.
+static MCSymbol *EmitSectionSym(AsmPrinter *Asm, const MCSection *Section,
+ const char *SymbolStem = 0) {
+ Asm->OutStreamer.SwitchSection(Section);
+ if (!SymbolStem) return 0;
+
+ MCSymbol *TmpSym = Asm->GetTempSymbol(SymbolStem);
+ Asm->OutStreamer.EmitLabel(TmpSym);
+ return TmpSym;
+}
+
+MCSymbol *DwarfDebug::getStringPool() {
+ return Asm->GetTempSymbol("section_str");
+}
+
MCSymbol *DwarfDebug::getStringPoolEntry(StringRef Str) {
std::pair<MCSymbol*, unsigned> &Entry = StringPool[Str];
if (Entry.first) return Entry.first;
return Entry.first = Asm->GetTempSymbol("string", Entry.second);
}
-
/// assignAbbrevNumber - Define a unique number for the abbreviation.
///
void DwarfDebug::assignAbbrevNumber(DIEAbbrev &Abbrev) {
return LinkageName;
}
+static bool isObjCClass(StringRef Name) {
+ return Name.startswith("+") || Name.startswith("-");
+}
+
+static bool hasObjCCategory(StringRef Name) {
+ if (!isObjCClass(Name)) return false;
+
+ size_t pos = Name.find(')');
+ if (pos != std::string::npos) {
+ if (Name[pos+1] != ' ') return false;
+ return true;
+ }
+ return false;
+}
+
+static void getObjCClassCategory(StringRef In, StringRef &Class,
+ StringRef &Category) {
+ if (!hasObjCCategory(In)) {
+ Class = In.slice(In.find('[') + 1, In.find(' '));
+ Category = "";
+ return;
+ }
+
+ Class = In.slice(In.find('[') + 1, In.find('('));
+ Category = In.slice(In.find('[') + 1, In.find(' '));
+ return;
+}
+
+static StringRef getObjCMethodName(StringRef In) {
+ return In.slice(In.find(' ') + 1, In.find(']'));
+}
+
+// Add the various names to the Dwarf accelerator table names.
+static void addSubprogramNames(CompileUnit *TheCU, DISubprogram SP,
+ DIE* Die) {
+ if (!SP.isDefinition()) return;
+
+ TheCU->addAccelName(SP.getName(), Die);
+
+ // If the linkage name is different than the name, go ahead and output
+ // that as well into the name table.
+ if (SP.getLinkageName() != "" && SP.getName() != SP.getLinkageName())
+ TheCU->addAccelName(SP.getLinkageName(), Die);
+
+ // If this is an Objective-C selector name add it to the ObjC accelerator
+ // too.
+ if (isObjCClass(SP.getName())) {
+ StringRef Class, Category;
+ getObjCClassCategory(SP.getName(), Class, Category);
+ TheCU->addAccelObjC(Class, Die);
+ if (Category != "")
+ TheCU->addAccelObjC(Category, Die);
+ // Also add the base method name to the name table.
+ TheCU->addAccelName(getObjCMethodName(SP.getName()), Die);
+ }
+}
+
/// 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
DISubprogram SP(SPNode);
DISubprogram SPDecl = SP.getFunctionDeclaration();
- if (SPDecl.isSubprogram())
- // Refer function declaration directly.
- SPCU->addDIEEntry(SPDie, dwarf::DW_AT_specification, dwarf::DW_FORM_ref4,
- SPCU->getOrCreateSubprogramDIE(SPDecl));
- else {
+ if (!SPDecl.isSubprogram()) {
// There is not any need to generate specification DIE for a function
// defined at compile unit level. If a function is defined inside another
// function then gdb prefers the definition at top level and but does not
MachineLocation Location(RI->getFrameRegister(*Asm->MF));
SPCU->addAddress(SPDie, dwarf::DW_AT_frame_base, Location);
+ // Add name to the name table, we do this here because we're guaranteed
+ // to have concrete versions of our DW_TAG_subprogram nodes.
+ addSubprogramNames(SPCU, SP, SPDie);
+
return SPDie;
}
const MCSymbol *EndLabel = getLabelAfterInsn(RI->second);
if (StartLabel == 0 || EndLabel == 0) {
- assert(0 && "Unexpected Start and End labels for a inlined scope!");
- return 0;
+ llvm_unreachable("Unexpected Start and End labels for a inlined scope!");
}
assert(StartLabel->isDefined() &&
"Invalid starting label for an inlined scope!");
I->second.push_back(std::make_pair(StartLabel, ScopeDIE));
DILocation DL(Scope->getInlinedAt());
- TheCU->addUInt(ScopeDIE, dwarf::DW_AT_call_file, 0, TheCU->getID());
+ TheCU->addUInt(ScopeDIE, dwarf::DW_AT_call_file, 0,
+ GetOrCreateSourceID(DL.getFilename(), DL.getDirectory()));
TheCU->addUInt(ScopeDIE, dwarf::DW_AT_call_line, 0, DL.getLineNumber());
+ // Add name to the name table, we do this here because we're guaranteed
+ // to have concrete versions of our DW_TAG_inlined_subprogram nodes.
+ addSubprogramNames(TheCU, InlinedSP, ScopeDIE);
+
return ScopeDIE;
}
ScopeDIE->addChild(*I);
if (DS.isSubprogram())
- TheCU->addPubTypes(DISubprogram(DS));
+ TheCU->addPubTypes(DISubprogram(DS));
- return ScopeDIE;
+ return ScopeDIE;
}
/// GetOrCreateSourceID - Look up the source id with the given directory and
if (FileName.empty())
return GetOrCreateSourceID("<stdin>", StringRef());
+ // TODO: this might not belong here. See if we can factor this better.
+ if (DirName == CompilationDir)
+ DirName = "";
+
unsigned SrcId = SourceIdMap.size()+1;
- std::pair<std::string, std::string> SourceName =
- std::make_pair(FileName, DirName);
- std::pair<std::pair<std::string, std::string>, unsigned> Entry =
- make_pair(SourceName, SrcId);
- std::map<std::pair<std::string, std::string>, unsigned>::iterator I;
- bool NewlyInserted;
- tie(I, NewlyInserted) = SourceIdMap.insert(Entry);
- if (!NewlyInserted)
- return I->second;
+ // We look up the file/dir pair by concatenating them with a zero byte.
+ SmallString<128> NamePair;
+ NamePair += DirName;
+ NamePair += '\0'; // Zero bytes are not allowed in paths.
+ NamePair += FileName;
+
+ StringMapEntry<unsigned> &Ent = SourceIdMap.GetOrCreateValue(NamePair, SrcId);
+ if (Ent.getValue() != SrcId)
+ return Ent.getValue();
// Print out a .file directive to specify files for .loc directives.
- Asm->OutStreamer.EmitDwarfFileDirective(SrcId, Entry.first.second,
- Entry.first.first);
+ Asm->OutStreamer.EmitDwarfFileDirective(SrcId, DirName, FileName);
return SrcId;
}
CompileUnit *DwarfDebug::constructCompileUnit(const MDNode *N) {
DICompileUnit DIUnit(N);
StringRef FN = DIUnit.getFilename();
- StringRef Dir = DIUnit.getDirectory();
- unsigned ID = GetOrCreateSourceID(FN, Dir);
+ CompilationDir = DIUnit.getDirectory();
+ unsigned ID = GetOrCreateSourceID(FN, CompilationDir);
DIE *Die = new DIE(dwarf::DW_TAG_compile_unit);
- CompileUnit *NewCU = new CompileUnit(ID, Die, Asm, this);
- NewCU->addString(Die, dwarf::DW_AT_producer, dwarf::DW_FORM_string,
- DIUnit.getProducer());
+ CompileUnit *NewCU = new CompileUnit(ID, DIUnit.getLanguage(), Die, Asm, this);
+ NewCU->addString(Die, dwarf::DW_AT_producer, DIUnit.getProducer());
NewCU->addUInt(Die, dwarf::DW_AT_language, dwarf::DW_FORM_data2,
DIUnit.getLanguage());
- NewCU->addString(Die, dwarf::DW_AT_name, dwarf::DW_FORM_string, FN);
- // Use DW_AT_entry_pc instead of DW_AT_low_pc/DW_AT_high_pc pair. This
- // simplifies debug range entries.
- NewCU->addUInt(Die, dwarf::DW_AT_entry_pc, dwarf::DW_FORM_addr, 0);
+ NewCU->addString(Die, dwarf::DW_AT_name, FN);
+ // 2.17.1 requires that we use DW_AT_low_pc for a single entry point
+ // into an entity.
+ NewCU->addUInt(Die, dwarf::DW_AT_low_pc, dwarf::DW_FORM_addr, 0);
// DW_AT_stmt_list is a offset of line number information for this
// compile unit in debug_line section.
if (Asm->MAI->doesDwarfRequireRelocationForSectionOffset())
else
NewCU->addUInt(Die, dwarf::DW_AT_stmt_list, dwarf::DW_FORM_data4, 0);
- if (!Dir.empty())
- NewCU->addString(Die, dwarf::DW_AT_comp_dir, dwarf::DW_FORM_string, Dir);
+ if (!CompilationDir.empty())
+ NewCU->addString(Die, dwarf::DW_AT_comp_dir, CompilationDir);
if (DIUnit.isOptimized())
NewCU->addUInt(Die, dwarf::DW_AT_APPLE_optimized, dwarf::DW_FORM_flag, 1);
StringRef Flags = DIUnit.getFlags();
if (!Flags.empty())
- NewCU->addString(Die, dwarf::DW_AT_APPLE_flags, dwarf::DW_FORM_string,
- Flags);
+ NewCU->addString(Die, dwarf::DW_AT_APPLE_flags, Flags);
if (unsigned RVer = DIUnit.getRunTimeVersion())
NewCU->addUInt(Die, dwarf::DW_AT_APPLE_major_runtime_vers,
/// construct SubprogramDIE - Construct subprogram DIE.
void DwarfDebug::constructSubprogramDIE(CompileUnit *TheCU,
const MDNode *N) {
+ CompileUnit *&CURef = SPMap[N];
+ if (CURef)
+ return;
+ CURef = TheCU;
+
DISubprogram SP(N);
if (!SP.isDefinition())
// This is a method declaration which will be handled while constructing
// Add to context owner.
TheCU->addToContextOwner(SubprogramDie, SP.getContext());
- // Expose as global.
- TheCU->addGlobal(SP.getName(), SubprogramDie);
-
- SPMap[N] = TheCU;
return;
}
DIE *ISP = *AI;
FirstCU->addUInt(ISP, dwarf::DW_AT_inline, 0, dwarf::DW_INL_inlined);
}
+ for (DenseMap<const MDNode *, DIE *>::iterator AI = AbstractSPDies.begin(),
+ AE = AbstractSPDies.end(); AI != AE; ++AI) {
+ DIE *ISP = AI->second;
+ if (InlinedSubprogramDIEs.count(ISP))
+ continue;
+ FirstCU->addUInt(ISP, dwarf::DW_AT_inline, 0, dwarf::DW_INL_inlined);
+ }
// Emit DW_AT_containing_type attribute to connect types with their
// vtable holding type.
// Corresponding abbreviations into a abbrev section.
emitAbbreviations();
- // Emit info into a debug pubnames section.
- emitDebugPubNames();
-
+ // Emit info into a dwarf accelerator table sections.
+ if (DwarfAccelTables) {
+ emitAccelNames();
+ emitAccelObjC();
+ emitAccelNamespaces();
+ emitAccelTypes();
+ }
+
// Emit info into a debug pubtypes section.
emitDebugPubTypes();
if (MI->getOperand(0).isCImm())
return DotDebugLocEntry(FLabel, SLabel, MI->getOperand(0).getCImm());
- assert(0 && "Unexpected 3 operand DBG_VALUE instruction!");
- return DotDebugLocEntry();
+ llvm_unreachable("Unexpected 3 operand DBG_VALUE instruction!");
}
/// collectVariableInfo - Find variables for each lexical scope.
}
// The value is valid until the next DBG_VALUE or clobber.
- DotDebugLocEntries.push_back(getDebugLocEntry(Asm, FLabel, SLabel, Begin));
+ DotDebugLocEntries.push_back(getDebugLocEntry(Asm, FLabel, SLabel,
+ Begin));
}
DotDebugLocEntries.push_back(DotDebugLocEntry());
}
if (!MI->isDebugValue()) {
DebugLoc DL = MI->getDebugLoc();
if (DL != PrevInstLoc && (!DL.isUnknown() || UnknownLocations)) {
- unsigned Flags = DWARF2_FLAG_IS_STMT;
+ unsigned Flags = 0;
PrevInstLoc = DL;
if (DL == PrologEndLoc) {
Flags |= DWARF2_FLAG_PROLOGUE_END;
PrologEndLoc = DebugLoc();
}
+ if (PrologEndLoc.isUnknown())
+ Flags |= DWARF2_FLAG_IS_STMT;
+
if (!DL.isUnknown()) {
const MDNode *Scope = DL.getScope(Asm->MF->getFunction()->getContext());
recordSourceLine(DL.getLine(), DL.getCol(), Scope, Flags);
}
/// getFnDebugLoc - Walk up the scope chain of given debug loc and find
-/// line number info for the function.
+/// line number info for the function.
static DebugLoc getFnDebugLoc(DebugLoc DL, const LLVMContext &Ctx) {
const MDNode *Scope = getScopeNode(DL, Ctx);
DISubprogram SP = getDISubprogram(Scope);
- if (SP.Verify())
- return DebugLoc::get(SP.getLineNumber(), 0, SP);
+ if (SP.Verify()) {
+ // Check for number of operands since the compatibility is
+ // cheap here.
+ if (SP->getNumOperands() > 19)
+ return DebugLoc::get(SP.getScopeLineNumber(), 0, SP);
+ else
+ return DebugLoc::get(SP.getLineNumber(), 0, SP);
+ }
+
return DebugLoc();
}
MOE = MI->operands_end(); MOI != MOE; ++MOI) {
if (!MOI->isReg() || !MOI->isDef() || !MOI->getReg())
continue;
- for (const unsigned *AI = TRI->getOverlaps(MOI->getReg());
- unsigned Reg = *AI; ++AI) {
+ for (MCRegAliasIterator AI(MOI->getReg(), TRI, true);
+ AI.isValid(); ++AI) {
+ unsigned Reg = *AI;
const MDNode *Var = LiveUserVar[Reg];
if (!Var)
continue;
MF->getFunction()->getContext());
recordSourceLine(FnStartDL.getLine(), FnStartDL.getCol(),
FnStartDL.getScope(MF->getFunction()->getContext()),
- DWARF2_FLAG_IS_STMT);
+ 0);
}
}
DIE *CurFnDIE = constructScopeDIE(TheCU, FnScope);
- if (!DisableFramePointerElim(*MF))
+ if (!MF->getTarget().Options.DisableFramePointerElim(*MF))
TheCU->addUInt(CurFnDIE, dwarf::DW_AT_APPLE_omit_frame_ptr,
dwarf::DW_FORM_flag, 1);
Fn = DB.getFilename();
Dir = DB.getDirectory();
} else
- assert(0 && "Unexpected scope info");
+ llvm_unreachable("Unexpected scope info");
Src = GetOrCreateSourceID(Fn, Dir);
}
// Get the children.
const std::vector<DIE *> &Children = Die->getChildren();
- // If not last sibling and has children then add sibling offset attribute.
- if (!Last && !Children.empty())
- Die->addSiblingOffset(DIEValueAllocator);
-
// Record the abbreviation.
assignAbbrevNumber(Die->getAbbrev());
}
}
-/// EmitSectionSym - Switch to the specified MCSection and emit an assembler
-/// temporary label to it if SymbolStem is specified.
-static MCSymbol *EmitSectionSym(AsmPrinter *Asm, const MCSection *Section,
- const char *SymbolStem = 0) {
- Asm->OutStreamer.SwitchSection(Section);
- if (!SymbolStem) return 0;
-
- MCSymbol *TmpSym = Asm->GetTempSymbol(SymbolStem);
- Asm->OutStreamer.EmitLabel(TmpSym);
- return TmpSym;
-}
-
/// EmitSectionLabels - Emit initial Dwarf sections with a label at
/// the start of each one.
void DwarfDebug::EmitSectionLabels() {
EmitSectionSym(Asm, TLOF.getDwarfLineSection(), "section_line");
EmitSectionSym(Asm, TLOF.getDwarfLocSection());
- EmitSectionSym(Asm, TLOF.getDwarfPubNamesSection());
EmitSectionSym(Asm, TLOF.getDwarfPubTypesSection());
DwarfStrSectionSym =
EmitSectionSym(Asm, TLOF.getDwarfStrSection(), "section_str");
Asm->OutStreamer.AddComment(dwarf::AttributeString(Attr));
switch (Attr) {
- case dwarf::DW_AT_sibling:
- Asm->EmitInt32(Die->getSiblingOffset());
- break;
case dwarf::DW_AT_abstract_origin: {
DIEEntry *E = cast<DIEEntry>(Values[i]);
DIE *Origin = E->getEntry();
// DW_AT_range Value encodes offset in debug_range section.
DIEInteger *V = cast<DIEInteger>(Values[i]);
- if (Asm->MAI->doesDwarfUsesLabelOffsetForRanges()) {
+ if (Asm->MAI->doesDwarfUseLabelOffsetForRanges()) {
Asm->EmitLabelPlusOffset(DwarfDebugRangeSectionSym,
V->getValue(),
4);
Asm->EmitInt8(1);
}
-/// emitDebugPubNames - Emit visible names into a debug pubnames section.
-///
-void DwarfDebug::emitDebugPubNames() {
+/// emitAccelNames - Emit visible names into a hashed accelerator table
+/// section.
+void DwarfDebug::emitAccelNames() {
+ DwarfAccelTable AT(DwarfAccelTable::Atom(DwarfAccelTable::eAtomTypeDIEOffset,
+ dwarf::DW_FORM_data4));
for (DenseMap<const MDNode *, CompileUnit *>::iterator I = CUMap.begin(),
E = CUMap.end(); I != E; ++I) {
CompileUnit *TheCU = I->second;
- // Start the dwarf pubnames section.
- Asm->OutStreamer.SwitchSection(
- Asm->getObjFileLowering().getDwarfPubNamesSection());
+ const StringMap<std::vector<DIE*> > &Names = TheCU->getAccelNames();
+ for (StringMap<std::vector<DIE*> >::const_iterator
+ GI = Names.begin(), GE = Names.end(); GI != GE; ++GI) {
+ const char *Name = GI->getKeyData();
+ const std::vector<DIE *> &Entities = GI->second;
+ for (std::vector<DIE *>::const_iterator DI = Entities.begin(),
+ DE = Entities.end(); DI != DE; ++DI)
+ AT.AddName(Name, (*DI));
+ }
+ }
- Asm->OutStreamer.AddComment("Length of Public Names Info");
- Asm->EmitLabelDifference(
- Asm->GetTempSymbol("pubnames_end", TheCU->getID()),
- Asm->GetTempSymbol("pubnames_begin", TheCU->getID()), 4);
+ AT.FinalizeTable(Asm, "Names");
+ Asm->OutStreamer.SwitchSection(
+ Asm->getObjFileLowering().getDwarfAccelNamesSection());
+ MCSymbol *SectionBegin = Asm->GetTempSymbol("names_begin");
+ Asm->OutStreamer.EmitLabel(SectionBegin);
- Asm->OutStreamer.EmitLabel(Asm->GetTempSymbol("pubnames_begin",
- TheCU->getID()));
+ // Emit the full data.
+ AT.Emit(Asm, SectionBegin, this);
+}
- Asm->OutStreamer.AddComment("DWARF Version");
- Asm->EmitInt16(dwarf::DWARF_VERSION);
+/// emitAccelObjC - Emit objective C classes and categories into a hashed
+/// accelerator table section.
+void DwarfDebug::emitAccelObjC() {
+ DwarfAccelTable AT(DwarfAccelTable::Atom(DwarfAccelTable::eAtomTypeDIEOffset,
+ dwarf::DW_FORM_data4));
+ for (DenseMap<const MDNode *, CompileUnit *>::iterator I = CUMap.begin(),
+ E = CUMap.end(); I != E; ++I) {
+ CompileUnit *TheCU = I->second;
+ const StringMap<std::vector<DIE*> > &Names = TheCU->getAccelObjC();
+ for (StringMap<std::vector<DIE*> >::const_iterator
+ GI = Names.begin(), GE = Names.end(); GI != GE; ++GI) {
+ const char *Name = GI->getKeyData();
+ const std::vector<DIE *> &Entities = GI->second;
+ for (std::vector<DIE *>::const_iterator DI = Entities.begin(),
+ DE = Entities.end(); DI != DE; ++DI)
+ AT.AddName(Name, (*DI));
+ }
+ }
- Asm->OutStreamer.AddComment("Offset of Compilation Unit Info");
- Asm->EmitSectionOffset(Asm->GetTempSymbol("info_begin", TheCU->getID()),
- DwarfInfoSectionSym);
+ AT.FinalizeTable(Asm, "ObjC");
+ Asm->OutStreamer.SwitchSection(Asm->getObjFileLowering()
+ .getDwarfAccelObjCSection());
+ MCSymbol *SectionBegin = Asm->GetTempSymbol("objc_begin");
+ Asm->OutStreamer.EmitLabel(SectionBegin);
- Asm->OutStreamer.AddComment("Compilation Unit Length");
- Asm->EmitLabelDifference(Asm->GetTempSymbol("info_end", TheCU->getID()),
- Asm->GetTempSymbol("info_begin", TheCU->getID()),
- 4);
+ // Emit the full data.
+ AT.Emit(Asm, SectionBegin, this);
+}
- const StringMap<DIE*> &Globals = TheCU->getGlobals();
- for (StringMap<DIE*>::const_iterator
- GI = Globals.begin(), GE = Globals.end(); GI != GE; ++GI) {
+/// emitAccelNamespace - Emit namespace dies into a hashed accelerator
+/// table.
+void DwarfDebug::emitAccelNamespaces() {
+ DwarfAccelTable AT(DwarfAccelTable::Atom(DwarfAccelTable::eAtomTypeDIEOffset,
+ dwarf::DW_FORM_data4));
+ for (DenseMap<const MDNode *, CompileUnit *>::iterator I = CUMap.begin(),
+ E = CUMap.end(); I != E; ++I) {
+ CompileUnit *TheCU = I->second;
+ const StringMap<std::vector<DIE*> > &Names = TheCU->getAccelNamespace();
+ for (StringMap<std::vector<DIE*> >::const_iterator
+ GI = Names.begin(), GE = Names.end(); GI != GE; ++GI) {
const char *Name = GI->getKeyData();
- DIE *Entity = GI->second;
+ const std::vector<DIE *> &Entities = GI->second;
+ for (std::vector<DIE *>::const_iterator DI = Entities.begin(),
+ DE = Entities.end(); DI != DE; ++DI)
+ AT.AddName(Name, (*DI));
+ }
+ }
- Asm->OutStreamer.AddComment("DIE offset");
- Asm->EmitInt32(Entity->getOffset());
+ AT.FinalizeTable(Asm, "namespac");
+ Asm->OutStreamer.SwitchSection(Asm->getObjFileLowering()
+ .getDwarfAccelNamespaceSection());
+ MCSymbol *SectionBegin = Asm->GetTempSymbol("namespac_begin");
+ Asm->OutStreamer.EmitLabel(SectionBegin);
- if (Asm->isVerbose())
- Asm->OutStreamer.AddComment("External Name");
- Asm->OutStreamer.EmitBytes(StringRef(Name, strlen(Name)+1), 0);
- }
+ // Emit the full data.
+ AT.Emit(Asm, SectionBegin, this);
+}
- Asm->OutStreamer.AddComment("End Mark");
- Asm->EmitInt32(0);
- Asm->OutStreamer.EmitLabel(Asm->GetTempSymbol("pubnames_end",
- TheCU->getID()));
+/// emitAccelTypes() - Emit type dies into a hashed accelerator table.
+void DwarfDebug::emitAccelTypes() {
+ std::vector<DwarfAccelTable::Atom> Atoms;
+ Atoms.push_back(DwarfAccelTable::Atom(DwarfAccelTable::eAtomTypeDIEOffset,
+ dwarf::DW_FORM_data4));
+ Atoms.push_back(DwarfAccelTable::Atom(DwarfAccelTable::eAtomTypeTag,
+ dwarf::DW_FORM_data2));
+ Atoms.push_back(DwarfAccelTable::Atom(DwarfAccelTable::eAtomTypeTypeFlags,
+ dwarf::DW_FORM_data1));
+ DwarfAccelTable AT(Atoms);
+ for (DenseMap<const MDNode *, CompileUnit *>::iterator I = CUMap.begin(),
+ E = CUMap.end(); I != E; ++I) {
+ CompileUnit *TheCU = I->second;
+ const StringMap<std::vector<std::pair<DIE*, unsigned > > > &Names
+ = TheCU->getAccelTypes();
+ for (StringMap<std::vector<std::pair<DIE*, unsigned> > >::const_iterator
+ GI = Names.begin(), GE = Names.end(); GI != GE; ++GI) {
+ const char *Name = GI->getKeyData();
+ const std::vector<std::pair<DIE *, unsigned> > &Entities = GI->second;
+ for (std::vector<std::pair<DIE *, unsigned> >::const_iterator DI
+ = Entities.begin(), DE = Entities.end(); DI !=DE; ++DI)
+ AT.AddName(Name, (*DI).first, (*DI).second);
+ }
}
+
+ AT.FinalizeTable(Asm, "types");
+ Asm->OutStreamer.SwitchSection(Asm->getObjFileLowering()
+ .getDwarfAccelTypesSection());
+ MCSymbol *SectionBegin = Asm->GetTempSymbol("types_begin");
+ Asm->OutStreamer.EmitLabel(SectionBegin);
+
+ // Emit the full data.
+ AT.Emit(Asm, SectionBegin, this);
}
void DwarfDebug::emitDebugPubTypes() {
for (DenseMap<const MDNode *, CompileUnit *>::iterator I = CUMap.begin(),
E = CUMap.end(); I != E; ++I) {
CompileUnit *TheCU = I->second;
- // Start the dwarf pubnames section.
+ // Start the dwarf pubtypes section.
Asm->OutStreamer.SwitchSection(
Asm->getObjFileLowering().getDwarfPubTypesSection());
Asm->OutStreamer.AddComment("Length of Public Types Info");
Asm->EmitInt32(Entity->getOffset());
if (Asm->isVerbose()) Asm->OutStreamer.AddComment("External Name");
+ // Emit the name with a terminating null byte.
Asm->OutStreamer.EmitBytes(StringRef(Name, GI->getKeyLength()+1), 0);
}
// Emit a label for reference from debug information entries.
Asm->OutStreamer.EmitLabel(Entries[i].second->getValue().first);
- // Emit the string itself.
- Asm->OutStreamer.EmitBytes(Entries[i].second->getKey(), 0/*addrspace*/);
+ // Emit the string itself with a terminating null byte.
+ Asm->OutStreamer.EmitBytes(StringRef(Entries[i].second->getKeyData(),
+ Entries[i].second->getKeyLength()+1),
+ 0/*addrspace*/);
}
}
if (Element == DIBuilder::OpPlus) {
Asm->EmitInt8(dwarf::DW_OP_plus_uconst);
Asm->EmitULEB128(DV.getAddrElement(++i));
- } else if (Element == DIBuilder::OpDeref)
- Asm->EmitInt8(dwarf::DW_OP_deref);
- else llvm_unreachable("unknown Opcode found in complex address");
+ } else if (Element == DIBuilder::OpDeref) {
+ if (!Entry.Loc.isReg())
+ Asm->EmitInt8(dwarf::DW_OP_deref);
+ } else
+ llvm_unreachable("unknown Opcode found in complex address");
}
}
}
/// __debug_info section, and the low_pc is the starting address for the
/// inlining instance.
void DwarfDebug::emitDebugInlineInfo() {
- if (!Asm->MAI->doesDwarfUsesInlineInfoSection())
+ if (!Asm->MAI->doesDwarfUseInlineInfoSection())
return;
if (!FirstCU)
StringRef Name = SP.getName();
Asm->OutStreamer.AddComment("MIPS linkage name");
- if (LName.empty()) {
- Asm->OutStreamer.EmitBytes(Name, 0);
- Asm->OutStreamer.EmitIntValue(0, 1, 0); // nul terminator.
- } else
+ if (LName.empty())
+ Asm->EmitSectionOffset(getStringPoolEntry(Name), DwarfStrSectionSym);
+ else
Asm->EmitSectionOffset(getStringPoolEntry(getRealLinkageName(LName)),
DwarfStrSectionSym);
projects / oota-llvm.git / blobdiff