#include "DIE.h"
#include "DIEHash.h"
#include "DwarfAccelTable.h"
-#include "DwarfCompileUnit.h"
+#include "DwarfUnit.h"
#include "llvm/ADT/STLExtras.h"
#include "llvm/ADT/Statistic.h"
#include "llvm/ADT/StringExtras.h"
cl::desc("Add an ODR hash to external type DIEs."),
cl::init(false));
-static cl::opt<bool>
-GenerateCUHash("generate-cu-hash", cl::Hidden,
- cl::desc("Add the CU hash as the dwo_id."),
- cl::init(false));
+static cl::opt<bool> GenerateCUHash("generate-cu-hash", cl::Hidden,
+ cl::desc("Add the CU hash as the dwo_id."),
+ cl::init(false));
static cl::opt<bool>
GenerateGnuPubSections("generate-gnu-dwarf-pub-sections", cl::Hidden,
clEnumVal(Disable, "Disabled"), clEnumValEnd),
cl::init(Default));
+static cl::opt<unsigned>
+DwarfVersionNumber("dwarf-version", cl::Hidden,
+ cl::desc("Generate DWARF for dwarf version."),
+ cl::init(0));
+
static const char *const DWARFGroupName = "DWARF Emission";
static const char *const DbgTimerName = "DWARF Debug Writer";
/// resolve - Look in the DwarfDebug map for the MDNode that
/// corresponds to the reference.
-template <typename T>
-T DbgVariable::resolve(DIRef<T> Ref) const {
+template <typename T> T DbgVariable::resolve(DIRef<T> Ref) const {
return DD->resolve(Ref);
}
}
DwarfDebug::DwarfDebug(AsmPrinter *A, Module *M)
- : Asm(A), MMI(Asm->MMI), FirstCU(0),
- AbbreviationsSet(InitAbbreviationsSetSize),
- SourceIdMap(DIEValueAllocator),
- PrevLabel(NULL), GlobalCUIndexCount(0),
- InfoHolder(A, &AbbreviationsSet, Abbreviations, "info_string",
- DIEValueAllocator),
- SkeletonAbbrevSet(InitAbbreviationsSetSize),
- SkeletonHolder(A, &SkeletonAbbrevSet, SkeletonAbbrevs, "skel_string",
- DIEValueAllocator) {
+ : Asm(A), MMI(Asm->MMI), FirstCU(0),
+ AbbreviationsSet(InitAbbreviationsSetSize),
+ SourceIdMap(DIEValueAllocator), PrevLabel(NULL), GlobalCUIndexCount(0),
+ InfoHolder(A, &AbbreviationsSet, Abbreviations, "info_string",
+ DIEValueAllocator),
+ SkeletonAbbrevSet(InitAbbreviationsSetSize),
+ SkeletonHolder(A, &SkeletonAbbrevSet, SkeletonAbbrevs, "skel_string",
+ DIEValueAllocator) {
DwarfInfoSectionSym = DwarfAbbrevSectionSym = 0;
DwarfStrSectionSym = TextSectionSym = 0;
else
HasDwarfPubSections = DwarfPubSections == Enable;
- DwarfVersion = getDwarfVersionFromModule(MMI->getModule());
+ DwarfVersion = DwarfVersionNumber
+ ? DwarfVersionNumber
+ : getDwarfVersionFromModule(MMI->getModule());
{
NamedRegionTimer T(DbgTimerName, DWARFGroupName, TimePassesIsEnabled);
static MCSymbol *emitSectionSym(AsmPrinter *Asm, const MCSection *Section,
const char *SymbolStem = 0) {
Asm->OutStreamer.SwitchSection(Section);
- if (!SymbolStem) return 0;
+ if (!SymbolStem)
+ return 0;
MCSymbol *TmpSym = Asm->GetTempSymbol(SymbolStem);
Asm->OutStreamer.EmitLabel(TmpSym);
return TmpSym;
}
+DwarfUnits::~DwarfUnits() {
+ for (SmallVectorImpl<Unit *>::iterator I = CUs.begin(), E = CUs.end(); I != E;
+ ++I)
+ delete *I;
+}
+
MCSymbol *DwarfUnits::getStringPoolSym() {
return Asm->GetTempSymbol(StringPref);
}
MCSymbol *DwarfUnits::getStringPoolEntry(StringRef Str) {
- std::pair<MCSymbol*, unsigned> &Entry =
- StringPool.GetOrCreateValue(Str).getValue();
- if (Entry.first) return Entry.first;
+ std::pair<MCSymbol *, unsigned> &Entry =
+ StringPool.GetOrCreateValue(Str).getValue();
+ if (Entry.first)
+ return Entry.first;
Entry.second = NextStringPoolNumber++;
return Entry.first = Asm->GetTempSymbol(StringPref, Entry.second);
}
unsigned DwarfUnits::getStringPoolIndex(StringRef Str) {
- std::pair<MCSymbol*, unsigned> &Entry =
- StringPool.GetOrCreateValue(Str).getValue();
- if (Entry.first) return Entry.second;
+ std::pair<MCSymbol *, unsigned> &Entry =
+ StringPool.GetOrCreateValue(Str).getValue();
+ if (Entry.first)
+ return Entry.second;
Entry.second = NextStringPoolNumber++;
Entry.first = Asm->GetTempSymbol(StringPref, Entry.second);
}
static bool hasObjCCategory(StringRef Name) {
- if (!isObjCClass(Name)) return false;
+ if (!isObjCClass(Name))
+ return false;
return Name.find(") ") != StringRef::npos;
}
// Helper for sorting sections into a stable output order.
static bool SectionSort(const MCSection *A, const MCSection *B) {
- std::string LA = (A ? A->getLabelBeginName() : "");
- std::string LB = (B ? B->getLabelBeginName() : "");
- return LA < LB;
+ std::string LA = (A ? A->getLabelBeginName() : "");
+ std::string LB = (B ? B->getLabelBeginName() : "");
+ return LA < LB;
}
// Add the various names to the Dwarf accelerator table names.
// TODO: Determine whether or not we should add names for programs
// that do not have a DW_AT_name or DW_AT_linkage_name field - this
// is only slightly different than the lookup of non-standard ObjC names.
-static void addSubprogramNames(CompileUnit *TheCU, DISubprogram SP,
- DIE* Die) {
- if (!SP.isDefinition()) return;
+static void addSubprogramNames(Unit *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
// specification DIE for a function defined inside a function.
DIScope SPContext = resolve(SP.getContext());
if (SP.isDefinition() && !SPContext.isCompileUnit() &&
- !SPContext.isFile() &&
- !isSubprogramContext(SPContext)) {
+ !SPContext.isFile() && !isSubprogramContext(SPContext)) {
SPCU->addFlag(SPDie, dwarf::DW_AT_declaration);
// Add arguments.
}
}
- SPCU->addLabelAddress(SPDie, dwarf::DW_AT_low_pc,
- Asm->GetTempSymbol("func_begin",
- Asm->getFunctionNumber()));
- SPCU->addLabelAddress(SPDie, dwarf::DW_AT_high_pc,
- Asm->GetTempSymbol("func_end",
- Asm->getFunctionNumber()));
+ SPCU->addLabelAddress(
+ SPDie, dwarf::DW_AT_low_pc,
+ Asm->GetTempSymbol("func_begin", Asm->getFunctionNumber()));
+ SPCU->addLabelAddress(
+ SPDie, dwarf::DW_AT_high_pc,
+ Asm->GetTempSymbol("func_end", Asm->getFunctionNumber()));
const TargetRegisterInfo *RI = Asm->TM.getRegisterInfo();
MachineLocation Location(RI->getFrameRegister(*Asm->MF));
SPCU->addAddress(SPDie, dwarf::DW_AT_frame_base, Location);
// If we have multiple ranges, emit them into the range section.
if (Ranges.size() > 1) {
// .debug_range section has not been laid out yet. Emit offset in
- // .debug_range as a uint, size 4, for now. emitDIE will handle
- // DW_AT_ranges appropriately.
- TheCU->addUInt(ScopeDIE, dwarf::DW_AT_ranges, dwarf::DW_FORM_data4,
- DebugRangeSymbols.size()
- * Asm->getDataLayout().getPointerSize());
+ // .debug_range as a relocatable label. emitDIE will handle
+ // emitting it appropriately.
+ unsigned Offset = DebugRangeSymbols.size();
+ TheCU->addSectionLabel(ScopeDIE, dwarf::DW_AT_ranges,
+ Asm->GetTempSymbol("debug_ranges", Offset));
for (SmallVectorImpl<InsnRange>::const_iterator RI = Ranges.begin(),
- RE = Ranges.end(); RI != RE; ++RI) {
+ RE = Ranges.end();
+ RI != RE; ++RI) {
DebugRangeSymbols.push_back(getLabelBeforeInsn(RI->first));
DebugRangeSymbols.push_back(getLabelAfterInsn(RI->second));
}
if (Ranges.size() > 1) {
// .debug_range section has not been laid out yet. Emit offset in
- // .debug_range as a uint, size 4, for now. emitDIE will handle
- // DW_AT_ranges appropriately.
- TheCU->addUInt(ScopeDIE, dwarf::DW_AT_ranges, dwarf::DW_FORM_data4,
- DebugRangeSymbols.size()
- * Asm->getDataLayout().getPointerSize());
+ // .debug_range as a relocatable label. emitDIE will handle
+ // emitting it appropriately.
+ unsigned Offset = DebugRangeSymbols.size();
+ TheCU->addSectionLabel(ScopeDIE, dwarf::DW_AT_ranges,
+ Asm->GetTempSymbol("debug_ranges", Offset));
for (SmallVectorImpl<InsnRange>::const_iterator RI = Ranges.begin(),
- RE = Ranges.end(); RI != RE; ++RI) {
+ RE = Ranges.end();
+ RI != RE; ++RI) {
DebugRangeSymbols.push_back(getLabelBeforeInsn(RI->first));
DebugRangeSymbols.push_back(getLabelAfterInsn(RI->second));
}
}
DIE *DwarfDebug::createScopeChildrenDIE(CompileUnit *TheCU, LexicalScope *Scope,
- SmallVectorImpl<DIE*> &Children) {
- DIE *ObjectPointer = NULL;
+ SmallVectorImpl<DIE *> &Children) {
+ DIE *ObjectPointer = NULL;
// Collect arguments for current function.
if (LScopes.isCurrentFunctionScope(Scope))
for (unsigned i = 0, N = CurrentFnArguments.size(); i < N; ++i)
if (DbgVariable *ArgDV = CurrentFnArguments[i])
if (DIE *Arg =
- TheCU->constructVariableDIE(*ArgDV, Scope->isAbstractScope())) {
+ TheCU->constructVariableDIE(*ArgDV, Scope->isAbstractScope())) {
Children.push_back(Arg);
- if (ArgDV->isObjectPointer()) ObjectPointer = Arg;
+ if (ArgDV->isObjectPointer())
+ ObjectPointer = Arg;
}
// Collect lexical scope children first.
- const SmallVectorImpl<DbgVariable *> &Variables =ScopeVariables.lookup(Scope);
+ const SmallVectorImpl<DbgVariable *> &Variables =
+ ScopeVariables.lookup(Scope);
for (unsigned i = 0, N = Variables.size(); i < N; ++i)
- if (DIE *Variable =
- TheCU->constructVariableDIE(*Variables[i], Scope->isAbstractScope())) {
+ if (DIE *Variable = TheCU->constructVariableDIE(*Variables[i],
+ Scope->isAbstractScope())) {
Children.push_back(Variable);
- if (Variables[i]->isObjectPointer()) ObjectPointer = Variable;
+ if (Variables[i]->isObjectPointer())
+ ObjectPointer = Variable;
}
const SmallVectorImpl<LexicalScope *> &Scopes = Scope->getChildren();
for (unsigned j = 0, M = Scopes.size(); j < M; ++j)
// There is no need to emit empty lexical block DIE.
std::pair<ImportedEntityMap::const_iterator,
- ImportedEntityMap::const_iterator> Range = std::equal_range(
- ScopesWithImportedEntities.begin(), ScopesWithImportedEntities.end(),
- std::pair<const MDNode *, const MDNode *>(DS, (const MDNode*)0),
- less_first());
+ ImportedEntityMap::const_iterator> Range =
+ std::equal_range(
+ ScopesWithImportedEntities.begin(),
+ ScopesWithImportedEntities.end(),
+ std::pair<const MDNode *, const MDNode *>(DS, (const MDNode *)0),
+ less_first());
if (Children.empty() && Range.first == Range.second)
return NULL;
ScopeDIE = constructLexicalScopeDIE(TheCU, Scope);
// Add children
for (SmallVectorImpl<DIE *>::iterator I = Children.begin(),
- E = Children.end(); I != E; ++I)
+ E = Children.end();
+ I != E; ++I)
ScopeDIE->addChild(*I);
if (DS.isSubprogram() && ObjectPointer != NULL)
TheCU->addDIEEntry(ScopeDIE, dwarf::DW_AT_object_pointer, ObjectPointer);
- if (DS.isSubprogram())
- TheCU->addPubTypes(DISubprogram(DS));
-
return ScopeDIE;
}
// 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 DwarfDebug::getOrCreateSourceID(StringRef FileName,
- StringRef DirName, unsigned CUID) {
+unsigned DwarfDebug::getOrCreateSourceID(StringRef FileName, StringRef DirName,
+ unsigned CUID) {
// If we use .loc in assembly, we can't separate .file entries according to
// compile units. Thus all files will belong to the default compile unit.
NewCU->addLabelAddress(Die, dwarf::DW_AT_low_pc, NULL);
// Define start line table label for each Compile Unit.
- MCSymbol *LineTableStartSym = Asm->GetTempSymbol("line_table_start",
- NewCU->getUniqueID());
+ MCSymbol *LineTableStartSym =
+ Asm->GetTempSymbol("line_table_start", NewCU->getUniqueID());
Asm->OutStreamer.getContext().setMCLineTableSymbol(LineTableStartSym,
NewCU->getUniqueID());
// The line table entries are not always emitted in assembly, so it
// is not okay to use line_table_start here.
if (Asm->MAI->doesDwarfUseRelocationsAcrossSections())
- NewCU->addLabel(Die, dwarf::DW_AT_stmt_list, dwarf::DW_FORM_sec_offset,
- UseTheFirstCU ? Asm->GetTempSymbol("section_line")
- : LineTableStartSym);
+ NewCU->addSectionLabel(
+ Die, dwarf::DW_AT_stmt_list,
+ UseTheFirstCU ? Asm->GetTempSymbol("section_line")
+ : LineTableStartSym);
else if (UseTheFirstCU)
- NewCU->addUInt(Die, dwarf::DW_AT_stmt_list, dwarf::DW_FORM_data4, 0);
+ NewCU->addSectionOffset(Die, dwarf::DW_AT_stmt_list, 0);
else
- NewCU->addDelta(Die, dwarf::DW_AT_stmt_list, dwarf::DW_FORM_data4,
- LineTableStartSym, DwarfLineSectionSym);
+ NewCU->addSectionDelta(Die, dwarf::DW_AT_stmt_list,
+ LineTableStartSym, DwarfLineSectionSym);
// If we're using split dwarf the compilation dir is going to be in the
// skeleton CU and so we don't need to duplicate it here.
// emit it here if we don't have a skeleton CU for split dwarf.
if (GenerateGnuPubSections) {
if (Asm->MAI->doesDwarfUseRelocationsAcrossSections())
- NewCU->addLabel(Die, dwarf::DW_AT_GNU_pubnames,
- dwarf::DW_FORM_sec_offset,
- Asm->GetTempSymbol("gnu_pubnames",
- NewCU->getUniqueID()));
+ NewCU->addSectionLabel(
+ Die, dwarf::DW_AT_GNU_pubnames,
+ Asm->GetTempSymbol("gnu_pubnames", NewCU->getUniqueID()));
else
- NewCU->addDelta(Die, dwarf::DW_AT_GNU_pubnames, dwarf::DW_FORM_data4,
- Asm->GetTempSymbol("gnu_pubnames",
- NewCU->getUniqueID()),
- DwarfGnuPubNamesSectionSym);
+ NewCU->addSectionDelta(
+ Die, dwarf::DW_AT_GNU_pubnames,
+ Asm->GetTempSymbol("gnu_pubnames", NewCU->getUniqueID()),
+ DwarfGnuPubNamesSectionSym);
if (Asm->MAI->doesDwarfUseRelocationsAcrossSections())
- NewCU->addLabel(Die, dwarf::DW_AT_GNU_pubtypes,
- dwarf::DW_FORM_sec_offset,
- Asm->GetTempSymbol("gnu_pubtypes",
- NewCU->getUniqueID()));
+ NewCU->addSectionLabel(
+ Die, dwarf::DW_AT_GNU_pubtypes,
+ Asm->GetTempSymbol("gnu_pubtypes", NewCU->getUniqueID()));
else
- NewCU->addDelta(Die, dwarf::DW_AT_GNU_pubtypes, dwarf::DW_FORM_data4,
- Asm->GetTempSymbol("gnu_pubtypes",
- NewCU->getUniqueID()),
- DwarfGnuPubTypesSectionSym);
+ NewCU->addSectionDelta(
+ Die, dwarf::DW_AT_GNU_pubtypes,
+ Asm->GetTempSymbol("gnu_pubtypes", NewCU->getUniqueID()),
+ DwarfGnuPubTypesSectionSym);
}
}
if (unsigned RVer = DIUnit.getRunTimeVersion())
NewCU->addUInt(Die, dwarf::DW_AT_APPLE_major_runtime_vers,
- dwarf::DW_FORM_data1, RVer);
+ dwarf::DW_FORM_data1, RVer);
if (!FirstCU)
FirstCU = NewCU;
void DwarfDebug::computeInlinedDIEs() {
// Attach DW_AT_inline attribute with inlined subprogram DIEs.
for (SmallPtrSet<DIE *, 4>::iterator AI = InlinedSubprogramDIEs.begin(),
- AE = InlinedSubprogramDIEs.end(); AI != AE; ++AI) {
+ AE = InlinedSubprogramDIEs.end();
+ AI != AE; ++AI) {
DIE *ISP = *AI;
FirstCU->addUInt(ISP, dwarf::DW_AT_inline, None, dwarf::DW_INL_inlined);
}
for (DenseMap<const MDNode *, DIE *>::iterator AI = AbstractSPDies.begin(),
- AE = AbstractSPDies.end(); AI != AE; ++AI) {
+ AE = AbstractSPDies.end();
+ AI != AE; ++AI) {
DIE *ISP = AI->second;
if (InlinedSubprogramDIEs.count(ISP))
continue;
continue;
// Construct subprogram DIE and add variables DIEs.
- CompileUnit *SPCU = CUMap.lookup(TheCU);
+ CompileUnit *SPCU = static_cast<CompileUnit *>(CUMap.lookup(TheCU));
assert(SPCU && "Unable to find Compile Unit!");
// FIXME: See the comment in constructSubprogramDIE about duplicate
// subprogram DIEs.
if (!DV.isVariable())
continue;
DbgVariable NewVar(DV, NULL, this);
- if (DIE *VariableDIE =
- SPCU->constructVariableDIE(NewVar, false))
+ if (DIE *VariableDIE = SPCU->constructVariableDIE(NewVar, false))
SPDIE->addChild(VariableDIE);
}
}
/// Test if the current CU language is C++ and that we have
/// a named type that is not contained in an anonymous namespace.
-static bool shouldAddODRHash(CompileUnit *CU, DIE *Die) {
+static bool shouldAddODRHash(TypeUnit *CU, DIE *Die) {
return CU->getLanguage() == dwarf::DW_LANG_C_plus_plus &&
getDIEStringAttr(Die, dwarf::DW_AT_name) != "" &&
!isContainedInAnonNamespace(Die);
// Attach DW_AT_inline attribute with inlined subprogram DIEs.
computeInlinedDIEs();
- // Split out type units and conditionally add an ODR tag to the split
- // out type.
- // FIXME: Do type splitting.
- for (unsigned i = 0, e = TypeUnits.size(); i != e; ++i) {
- DIE *Die = TypeUnits[i];
- DIEHash Hash;
- // If we've requested ODR hashes and it's applicable for an ODR hash then
- // add the ODR signature now.
- // FIXME: This should be added onto the type unit, not the type, but this
- // works as an intermediate stage.
- if (GenerateODRHash && shouldAddODRHash(CUMap.begin()->second, Die))
- CUMap.begin()->second->addUInt(Die, dwarf::DW_AT_GNU_odr_signature,
- dwarf::DW_FORM_data8,
- Hash.computeDIEODRSignature(*Die));
- }
-
// Handle anything that needs to be done on a per-cu basis.
- for (DenseMap<const MDNode *, CompileUnit *>::iterator CUI = CUMap.begin(),
- CUE = CUMap.end();
- CUI != CUE; ++CUI) {
- CompileUnit *TheCU = CUI->second;
+ for (SmallVectorImpl<Unit *>::const_iterator I = getUnits().begin(),
+ E = getUnits().end();
+ I != E; ++I) {
+ Unit *TheCU = *I;
// Emit DW_AT_containing_type attribute to connect types with their
// vtable holding type.
TheCU->constructContainingTypeDIEs();
// If we're splitting the dwarf out now that we've got the entire
// CU then construct a skeleton CU based upon it.
- if (useSplitDwarf()) {
+ if (useSplitDwarf() &&
+ TheCU->getCUDie()->getTag() == dwarf::DW_TAG_compile_unit) {
uint64_t ID = 0;
if (GenerateCUHash) {
DIEHash CUHash;
TheCU->addUInt(TheCU->getCUDie(), dwarf::DW_AT_GNU_dwo_id,
dwarf::DW_FORM_data8, ID);
// Now construct the skeleton CU associated.
- CompileUnit *SkCU = constructSkeletonCU(TheCU);
+ CompileUnit *SkCU =
+ constructSkeletonCU(static_cast<CompileUnit *>(TheCU));
// This should be a unique identifier when we want to build .dwp files.
SkCU->addUInt(SkCU->getCUDie(), dwarf::DW_AT_GNU_dwo_id,
dwarf::DW_FORM_data8, ID);
}
void DwarfDebug::endSections() {
- // Filter labels by section.
+ // Filter labels by section.
for (size_t n = 0; n < ArangeLabels.size(); n++) {
const SymbolCU &SCU = ArangeLabels[n];
if (SCU.Sym->isInSection()) {
std::sort(Sections.begin(), Sections.end(), SectionSort);
// Add terminating symbols for each section.
- for (unsigned ID=0;ID<Sections.size();ID++) {
+ for (unsigned ID = 0; ID < Sections.size(); ID++) {
const MCSection *Section = Sections[ID];
MCSymbol *Sym = NULL;
if (Section) {
// We can't call MCSection::getLabelEndName, as it's only safe to do so
- // if we know the section name up-front. For user-created sections, the resulting
- // label may not be valid to use as a label. (section names can use a greater
+ // if we know the section name up-front. For user-created sections, the
+ // resulting
+ // label may not be valid to use as a label. (section names can use a
+ // greater
// set of characters on some systems)
Sym = Asm->GetTempSymbol("debug_end", ID);
Asm->OutStreamer.SwitchSection(Section);
// Emit all Dwarf sections that should come after the content.
void DwarfDebug::endModule() {
- if (!FirstCU) return;
+ if (!FirstCU)
+ return;
// End any existing sections.
// TODO: Does this need to happen?
// Finalize the debug info for the module.
finalizeModuleInfo();
- if (!useSplitDwarf()) {
- emitDebugStr();
+ emitDebugStr();
- // Emit all the DIEs into a debug info section.
- emitDebugInfo();
+ // Emit all the DIEs into a debug info section.
+ emitDebugInfo();
- // Corresponding abbreviations into a abbrev section.
- emitAbbreviations();
+ // Corresponding abbreviations into a abbrev section.
+ emitAbbreviations();
- // Emit info into a debug loc section.
- emitDebugLoc();
+ // Emit info into a debug loc section.
+ emitDebugLoc();
- // Emit info into a debug aranges section.
- emitDebugARanges();
+ // Emit info into a debug aranges section.
+ emitDebugARanges();
- // Emit info into a debug ranges section.
- emitDebugRanges();
+ // Emit info into a debug ranges section.
+ emitDebugRanges();
- // Emit info into a debug macinfo section.
- emitDebugMacInfo();
+ // Emit info into a debug macinfo section.
+ emitDebugMacInfo();
- } else {
- // TODO: Fill this in for separated debug sections and separate
- // out information into new sections.
- emitDebugStr();
- if (useSplitDwarf())
- emitDebugStrDWO();
-
- // Emit the debug info section and compile units.
- emitDebugInfo();
+ if (useSplitDwarf()) {
+ emitDebugStrDWO();
emitDebugInfoDWO();
-
- // Corresponding abbreviations into a abbrev section.
- emitAbbreviations();
emitDebugAbbrevDWO();
-
- // Emit info into a debug loc section.
- emitDebugLoc();
-
- // Emit info into a debug aranges section.
- emitDebugARanges();
-
- // Emit info into a debug ranges section.
- emitDebugRanges();
-
- // Emit info into a debug macinfo section.
- emitDebugMacInfo();
-
// Emit DWO addresses.
InfoHolder.emitAddresses(Asm->getObjFileLowering().getDwarfAddrSection());
-
}
// Emit info into the dwarf accelerator table sections.
// clean up.
SPMap.clear();
- for (DenseMap<const MDNode *, CompileUnit *>::iterator I = CUMap.begin(),
- E = CUMap.end(); I != E; ++I)
- delete I->second;
-
- for (SmallVectorImpl<CompileUnit *>::iterator I = SkeletonCUs.begin(),
- E = SkeletonCUs.end(); I != E; ++I)
- delete *I;
// Reset these for the next Module if we have one.
FirstCU = NULL;
}
// Collect variable information from side table maintained by MMI.
-void
-DwarfDebug::collectVariableInfoFromMMITable(const MachineFunction *MF,
- SmallPtrSet<const MDNode *, 16> &Processed) {
+void DwarfDebug::collectVariableInfoFromMMITable(
+ const MachineFunction *MF, SmallPtrSet<const MDNode *, 16> &Processed) {
MachineModuleInfo::VariableDbgInfoMapTy &VMap = MMI->getVariableDbgInfo();
for (MachineModuleInfo::VariableDbgInfoMapTy::iterator VI = VMap.begin(),
- VE = VMap.end(); VI != VE; ++VI) {
+ VE = VMap.end();
+ VI != VE; ++VI) {
const MDNode *Var = VI->first;
- if (!Var) continue;
+ if (!Var)
+ continue;
Processed.insert(Var);
DIVariable DV(Var);
const std::pair<unsigned, DebugLoc> &VP = VI->second;
// defined reg.
static bool isDbgValueInDefinedReg(const MachineInstr *MI) {
assert(MI->isDebugValue() && "Invalid DBG_VALUE machine instruction!");
- return MI->getNumOperands() == 3 &&
- MI->getOperand(0).isReg() && MI->getOperand(0).getReg() &&
+ return MI->getNumOperands() == 3 && MI->getOperand(0).isReg() &&
+ MI->getOperand(0).getReg() &&
(MI->getOperand(1).isImm() ||
(MI->getOperand(1).isReg() && MI->getOperand(1).getReg() == 0U));
}
const MCSymbol *FLabel,
const MCSymbol *SLabel,
const MachineInstr *MI) {
- const MDNode *Var = MI->getOperand(MI->getNumOperands() - 1).getMetadata();
+ const MDNode *Var = MI->getOperand(MI->getNumOperands() - 1).getMetadata();
assert(MI->getNumOperands() == 3);
if (MI->getOperand(0).isReg()) {
// Grab the variable info that was squirreled away in the MMI side-table.
collectVariableInfoFromMMITable(MF, Processed);
- for (SmallVectorImpl<const MDNode*>::const_iterator
- UVI = UserVariables.begin(), UVE = UserVariables.end(); UVI != UVE;
- ++UVI) {
+ for (SmallVectorImpl<const MDNode *>::const_iterator
+ UVI = UserVariables.begin(),
+ UVE = UserVariables.end();
+ UVI != UVE; ++UVI) {
const MDNode *Var = *UVI;
if (Processed.count(Var))
continue;
// History contains relevant DBG_VALUE instructions for Var and instructions
// clobbering it.
- SmallVectorImpl<const MachineInstr*> &History = DbgValues[Var];
+ SmallVectorImpl<const MachineInstr *> &History = DbgValues[Var];
if (History.empty())
continue;
const MachineInstr *MInsn = History.front();
AbsVar->setMInsn(MInsn);
// Simplify ranges that are fully coalesced.
- if (History.size() <= 1 || (History.size() == 2 &&
- MInsn->isIdenticalTo(History.back()))) {
+ if (History.size() <= 1 ||
+ (History.size() == 2 && MInsn->isIdenticalTo(History.back()))) {
RegVar->setMInsn(MInsn);
continue;
}
// Handle multiple DBG_VALUE instructions describing one variable.
RegVar->setDotDebugLocOffset(DotDebugLocEntries.size());
- for (SmallVectorImpl<const MachineInstr*>::const_iterator
- HI = History.begin(), HE = History.end(); HI != HE; ++HI) {
+ for (SmallVectorImpl<const MachineInstr *>::const_iterator
+ HI = History.begin(),
+ HE = History.end();
+ HI != HE; ++HI) {
const MachineInstr *Begin = *HI;
assert(Begin->isDebugValue() && "Invalid History entry");
// Check if DBG_VALUE is truncating a range.
- if (Begin->getNumOperands() > 1 && Begin->getOperand(0).isReg()
- && !Begin->getOperand(0).getReg())
+ if (Begin->getNumOperands() > 1 && Begin->getOperand(0).isReg() &&
+ !Begin->getOperand(0).getReg())
continue;
// Compute the range for a register location.
else {
const MachineInstr *End = HI[1];
DEBUG(dbgs() << "DotDebugLoc Pair:\n"
- << "\t" << *Begin << "\t" << *End << "\n");
+ << "\t" << *Begin << "\t" << *End << "\n");
if (End->isDebugValue())
SLabel = getLabelBeforeInsn(End);
else {
}
// 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());
}
}
// Insert labels where requested.
- DenseMap<const MachineInstr*, MCSymbol*>::iterator I =
- LabelsBeforeInsn.find(MI);
+ DenseMap<const MachineInstr *, MCSymbol *>::iterator I =
+ LabelsBeforeInsn.find(MI);
// No label needed.
if (I == LabelsBeforeInsn.end())
if (!MI->isDebugValue())
PrevLabel = 0;
- DenseMap<const MachineInstr*, MCSymbol*>::iterator I =
- LabelsAfterInsn.find(MI);
+ DenseMap<const MachineInstr *, MCSymbol *>::iterator I =
+ LabelsAfterInsn.find(MI);
// No label needed.
if (I == LabelsAfterInsn.end())
const SmallVectorImpl<LexicalScope *> &Children = S->getChildren();
if (!Children.empty())
- for (SmallVectorImpl<LexicalScope *>::const_iterator SI = Children.begin(),
- SE = Children.end(); SI != SE; ++SI)
+ for (SmallVectorImpl<LexicalScope *>::const_iterator
+ SI = Children.begin(),
+ SE = Children.end();
+ SI != SE; ++SI)
WorkList.push_back(*SI);
if (S->isAbstractScope())
if (Ranges.empty())
continue;
for (SmallVectorImpl<InsnRange>::const_iterator RI = Ranges.begin(),
- RE = Ranges.end(); RI != RE; ++RI) {
+ RE = Ranges.end();
+ RI != RE; ++RI) {
assert(RI->first && "InsnRange does not have first instruction!");
assert(RI->second && "InsnRange does not have second instruction!");
requestLabelBeforeInsn(RI->first);
// Gather and emit post-function debug information.
void DwarfDebug::endFunction(const MachineFunction *MF) {
- if (!MMI->hasDebugInfo() || LScopes.empty()) return;
+ if (!MMI->hasDebugInfo() || LScopes.empty())
+ return;
// Define end label for subprogram.
- FunctionEndSym = Asm->GetTempSymbol("func_end",
- Asm->getFunctionNumber());
+ FunctionEndSym = Asm->GetTempSymbol("func_end", Asm->getFunctionNumber());
// Assumes in correct section after the entry point.
Asm->OutStreamer.EmitLabel(FunctionEndSym);
// Set DwarfCompileUnitID in MCContext to default value.
TheCU->addFlag(CurFnDIE, dwarf::DW_AT_APPLE_omit_frame_ptr);
// Clear debug info
- for (ScopeVariablesMap::iterator
- I = ScopeVariables.begin(), E = ScopeVariables.end(); I != E; ++I)
+ for (ScopeVariablesMap::iterator I = ScopeVariables.begin(),
+ E = ScopeVariables.end();
+ I != E; ++I)
DeleteContainerPointers(I->second);
ScopeVariables.clear();
DeleteContainerPointers(CurrentFnArguments);
} else
llvm_unreachable("Unexpected scope info");
- Src = getOrCreateSourceID(Fn, Dir,
- Asm->OutStreamer.getContext().getDwarfCompileUnitID());
+ Src = getOrCreateSourceID(
+ Fn, Dir, Asm->OutStreamer.getContext().getDwarfCompileUnitID());
}
Asm->OutStreamer.EmitDwarfLocDirective(Src, Line, Col, Flags, 0, 0, Fn);
}
// Compute the size and offset of a DIE. The offset is relative to start of the
// CU. It returns the offset after laying out the DIE.
-unsigned
-DwarfUnits::computeSizeAndOffset(DIE *Die, unsigned Offset) {
+unsigned DwarfUnits::computeSizeAndOffset(DIE *Die, unsigned Offset) {
// Get the children.
const std::vector<DIE *> &Children = Die->getChildren();
// Start the size with the size of abbreviation code.
Offset += MCAsmInfo::getULEB128Size(AbbrevNumber);
- const SmallVectorImpl<DIEValue*> &Values = Die->getValues();
+ const SmallVectorImpl<DIEValue *> &Values = Die->getValues();
const SmallVectorImpl<DIEAbbrevData> &AbbrevData = Abbrev->getData();
// Size the DIE attribute values.
// Iterate over each compile unit and set the size and offsets for each
// DIE within each compile unit. All offsets are CU relative.
- for (SmallVectorImpl<CompileUnit *>::iterator I = CUs.begin(),
- E = CUs.end(); I != E; ++I) {
+ for (SmallVectorImpl<Unit *>::const_iterator I = CUs.begin(), E = CUs.end();
+ I != E; ++I) {
(*I)->setDebugInfoOffset(SecOffset);
// CU-relative offset is reset to 0 here.
- unsigned Offset = sizeof(int32_t) + // Length of Unit Info
+ unsigned Offset = sizeof(int32_t) + // Length of Unit Info
(*I)->getHeaderSize(); // Unit-specific headers
// EndOffset here is CU-relative, after laying out
// Dwarf sections base addresses.
DwarfInfoSectionSym =
- emitSectionSym(Asm, TLOF.getDwarfInfoSection(), "section_info");
+ emitSectionSym(Asm, TLOF.getDwarfInfoSection(), "section_info");
DwarfAbbrevSectionSym =
- emitSectionSym(Asm, TLOF.getDwarfAbbrevSection(), "section_abbrev");
+ emitSectionSym(Asm, TLOF.getDwarfAbbrevSection(), "section_abbrev");
if (useSplitDwarf())
- DwarfAbbrevDWOSectionSym =
- emitSectionSym(Asm, TLOF.getDwarfAbbrevDWOSection(),
- "section_abbrev_dwo");
+ DwarfAbbrevDWOSectionSym = emitSectionSym(
+ Asm, TLOF.getDwarfAbbrevDWOSection(), "section_abbrev_dwo");
emitSectionSym(Asm, TLOF.getDwarfARangesSection());
if (const MCSection *MacroInfo = TLOF.getDwarfMacroInfoSection())
emitSectionSym(Asm, MacroInfo);
DwarfLineSectionSym =
- emitSectionSym(Asm, TLOF.getDwarfLineSection(), "section_line");
+ emitSectionSym(Asm, TLOF.getDwarfLineSection(), "section_line");
emitSectionSym(Asm, TLOF.getDwarfLocSection());
if (GenerateGnuPubSections) {
DwarfGnuPubNamesSectionSym =
}
DwarfStrSectionSym =
- emitSectionSym(Asm, TLOF.getDwarfStrSection(), "info_string");
+ emitSectionSym(Asm, TLOF.getDwarfStrSection(), "info_string");
if (useSplitDwarf()) {
DwarfStrDWOSectionSym =
- emitSectionSym(Asm, TLOF.getDwarfStrDWOSection(), "skel_string");
+ emitSectionSym(Asm, TLOF.getDwarfStrDWOSection(), "skel_string");
DwarfAddrSectionSym =
- emitSectionSym(Asm, TLOF.getDwarfAddrSection(), "addr_sec");
+ emitSectionSym(Asm, TLOF.getDwarfAddrSection(), "addr_sec");
}
- DwarfDebugRangeSectionSym = emitSectionSym(Asm, TLOF.getDwarfRangesSection(),
- "debug_range");
+ DwarfDebugRangeSectionSym =
+ emitSectionSym(Asm, TLOF.getDwarfRangesSection(), "debug_range");
- DwarfDebugLocSectionSym = emitSectionSym(Asm, TLOF.getDwarfLocSection(),
- "section_debug_loc");
+ DwarfDebugLocSectionSym =
+ emitSectionSym(Asm, TLOF.getDwarfLocSection(), "section_debug_loc");
TextSectionSym = emitSectionSym(Asm, TLOF.getTextSection(), "text_begin");
emitSectionSym(Asm, TLOF.getDataSection());
dwarf::TagString(Abbrev->getTag()));
Asm->EmitULEB128(AbbrevNumber);
- const SmallVectorImpl<DIEValue*> &Values = Die->getValues();
+ const SmallVectorImpl<DIEValue *> &Values = Die->getValues();
const SmallVectorImpl<DIEAbbrevData> &AbbrevData = Abbrev->getData();
// Emit the DIE attribute values.
// For DW_FORM_ref_addr, output the offset from beginning of debug info
// section. Origin->getOffset() returns the offset from start of the
// compile unit.
- CompileUnit *CU = CUDieMap.lookup(Origin->getCompileUnit());
+ CompileUnit *CU = CUDieMap.lookup(Origin->getUnit());
assert(CU && "CUDie should belong to a CU.");
Addr += CU->getDebugInfoOffset();
if (Asm->MAI->doesDwarfUseRelocationsAcrossSections())
DIEEntry::getRefAddrSize(Asm));
} else {
// Make sure Origin belong to the same CU.
- assert(Die->getCompileUnit() == Origin->getCompileUnit() &&
+ assert(Die->getUnit() == Origin->getUnit() &&
"The referenced DIE should belong to the same CU in ref4");
Asm->EmitInt32(Addr);
}
}
case dwarf::DW_AT_ranges: {
// DW_AT_range Value encodes offset in debug_range section.
- DIEInteger *V = cast<DIEInteger>(Values[i]);
+ DIELabel *V = cast<DIELabel>(Values[i]);
- if (Asm->MAI->doesDwarfUseRelocationsAcrossSections()) {
- Asm->EmitLabelPlusOffset(DwarfDebugRangeSectionSym,
- V->getValue(),
- 4);
- } else {
- Asm->EmitLabelOffsetDifference(DwarfDebugRangeSectionSym,
- V->getValue(),
- DwarfDebugRangeSectionSym,
- 4);
- }
+ if (Asm->MAI->doesDwarfUseRelocationsAcrossSections())
+ Asm->EmitSectionOffset(V->getValue(), DwarfDebugRangeSectionSym);
+ else
+ Asm->EmitLabelDifference(V->getValue(), DwarfDebugRangeSectionSym, 4);
break;
}
case dwarf::DW_AT_location: {
// Emit the various dwarf units to the unit section USection with
// the abbreviations going into ASection.
-void DwarfUnits::emitUnits(DwarfDebug *DD,
- const MCSection *USection,
+void DwarfUnits::emitUnits(DwarfDebug *DD, const MCSection *USection,
const MCSection *ASection,
const MCSymbol *ASectionSym) {
Asm->OutStreamer.SwitchSection(USection);
- for (SmallVectorImpl<CompileUnit *>::iterator I = CUs.begin(),
- E = CUs.end(); I != E; ++I) {
- CompileUnit *TheCU = *I;
+ for (SmallVectorImpl<Unit *>::iterator I = CUs.begin(), E = CUs.end(); I != E;
+ ++I) {
+ Unit *TheCU = *I;
DIE *Die = TheCU->getCUDie();
// Emit the compile units header.
- Asm->OutStreamer
- .EmitLabel(Asm->GetTempSymbol(USection->getLabelBeginName(),
- TheCU->getUniqueID()));
+ Asm->OutStreamer.EmitLabel(Asm->GetTempSymbol(USection->getLabelBeginName(),
+ TheCU->getUniqueID()));
// Emit size of content not including length itself
Asm->OutStreamer.AddComment("Length of Unit");
TheCU->emitHeader(ASection, ASectionSym);
DD->emitDIE(Die, Abbreviations);
- Asm->OutStreamer.EmitLabel(Asm->GetTempSymbol(USection->getLabelEndName(),
- TheCU->getUniqueID()));
+ Asm->OutStreamer.EmitLabel(
+ Asm->GetTempSymbol(USection->getLabelEndName(), TheCU->getUniqueID()));
}
}
Asm->OutStreamer.AddComment("Section end label");
- Asm->OutStreamer.EmitSymbolValue(Asm->GetTempSymbol("section_end",SectionEnd),
- Asm->getDataLayout().getPointerSize());
+ Asm->OutStreamer.EmitSymbolValue(
+ Asm->GetTempSymbol("section_end", SectionEnd),
+ Asm->getDataLayout().getPointerSize());
// Mark end of matrix.
Asm->OutStreamer.AddComment("DW_LNE_end_sequence");
// Emit visible names into a hashed accelerator table section.
void DwarfDebug::emitAccelNames() {
- DwarfAccelTable AT(DwarfAccelTable::Atom(dwarf::DW_ATOM_die_offset,
- 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->getAccelNames();
- for (StringMap<std::vector<DIE*> >::const_iterator
- GI = Names.begin(), GE = Names.end(); GI != GE; ++GI) {
+ DwarfAccelTable AT(
+ DwarfAccelTable::Atom(dwarf::DW_ATOM_die_offset, dwarf::DW_FORM_data4));
+ for (SmallVectorImpl<Unit *>::const_iterator I = getUnits().begin(),
+ E = getUnits().end();
+ I != E; ++I) {
+ Unit *TheCU = *I;
+ const StringMap<std::vector<const DIE *> > &Names = TheCU->getAccelNames();
+ for (StringMap<std::vector<const DIE *> >::const_iterator
+ GI = Names.begin(),
+ GE = Names.end();
+ GI != GE; ++GI) {
StringRef Name = GI->getKey();
- 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));
+ const std::vector<const DIE *> &Entities = GI->second;
+ for (std::vector<const DIE *>::const_iterator DI = Entities.begin(),
+ DE = Entities.end();
+ DI != DE; ++DI)
+ AT.AddName(Name, *DI);
}
}
AT.FinalizeTable(Asm, "Names");
Asm->OutStreamer.SwitchSection(
- Asm->getObjFileLowering().getDwarfAccelNamesSection());
+ Asm->getObjFileLowering().getDwarfAccelNamesSection());
MCSymbol *SectionBegin = Asm->GetTempSymbol("names_begin");
Asm->OutStreamer.EmitLabel(SectionBegin);
// Emit objective C classes and categories into a hashed accelerator table
// section.
void DwarfDebug::emitAccelObjC() {
- DwarfAccelTable AT(DwarfAccelTable::Atom(dwarf::DW_ATOM_die_offset,
- 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) {
+ DwarfAccelTable AT(
+ DwarfAccelTable::Atom(dwarf::DW_ATOM_die_offset, dwarf::DW_FORM_data4));
+ for (SmallVectorImpl<Unit *>::const_iterator I = getUnits().begin(),
+ E = getUnits().end();
+ I != E; ++I) {
+ Unit *TheCU = *I;
+ const StringMap<std::vector<const DIE *> > &Names = TheCU->getAccelObjC();
+ for (StringMap<std::vector<const DIE *> >::const_iterator
+ GI = Names.begin(),
+ GE = Names.end();
+ GI != GE; ++GI) {
StringRef Name = GI->getKey();
- 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));
+ const std::vector<const DIE *> &Entities = GI->second;
+ for (std::vector<const DIE *>::const_iterator DI = Entities.begin(),
+ DE = Entities.end();
+ DI != DE; ++DI)
+ AT.AddName(Name, *DI);
}
}
AT.FinalizeTable(Asm, "ObjC");
- Asm->OutStreamer.SwitchSection(Asm->getObjFileLowering()
- .getDwarfAccelObjCSection());
+ Asm->OutStreamer.SwitchSection(
+ Asm->getObjFileLowering().getDwarfAccelObjCSection());
MCSymbol *SectionBegin = Asm->GetTempSymbol("objc_begin");
Asm->OutStreamer.EmitLabel(SectionBegin);
// Emit namespace dies into a hashed accelerator table.
void DwarfDebug::emitAccelNamespaces() {
- DwarfAccelTable AT(DwarfAccelTable::Atom(dwarf::DW_ATOM_die_offset,
- 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) {
+ DwarfAccelTable AT(
+ DwarfAccelTable::Atom(dwarf::DW_ATOM_die_offset, dwarf::DW_FORM_data4));
+ for (SmallVectorImpl<Unit *>::const_iterator I = getUnits().begin(),
+ E = getUnits().end();
+ I != E; ++I) {
+ Unit *TheCU = *I;
+ const StringMap<std::vector<const DIE *> > &Names =
+ TheCU->getAccelNamespace();
+ for (StringMap<std::vector<const DIE *> >::const_iterator
+ GI = Names.begin(),
+ GE = Names.end();
+ GI != GE; ++GI) {
StringRef Name = GI->getKey();
- 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));
+ const std::vector<const DIE *> &Entities = GI->second;
+ for (std::vector<const DIE *>::const_iterator DI = Entities.begin(),
+ DE = Entities.end();
+ DI != DE; ++DI)
+ AT.AddName(Name, *DI);
}
}
AT.FinalizeTable(Asm, "namespac");
- Asm->OutStreamer.SwitchSection(Asm->getObjFileLowering()
- .getDwarfAccelNamespaceSection());
+ Asm->OutStreamer.SwitchSection(
+ Asm->getObjFileLowering().getDwarfAccelNamespaceSection());
MCSymbol *SectionBegin = Asm->GetTempSymbol("namespac_begin");
Asm->OutStreamer.EmitLabel(SectionBegin);
// Emit type dies into a hashed accelerator table.
void DwarfDebug::emitAccelTypes() {
std::vector<DwarfAccelTable::Atom> Atoms;
- Atoms.push_back(DwarfAccelTable::Atom(dwarf::DW_ATOM_die_offset,
- dwarf::DW_FORM_data4));
- Atoms.push_back(DwarfAccelTable::Atom(dwarf::DW_ATOM_die_tag,
- dwarf::DW_FORM_data2));
- Atoms.push_back(DwarfAccelTable::Atom(dwarf::DW_ATOM_type_flags,
- dwarf::DW_FORM_data1));
+ Atoms.push_back(
+ DwarfAccelTable::Atom(dwarf::DW_ATOM_die_offset, dwarf::DW_FORM_data4));
+ Atoms.push_back(
+ DwarfAccelTable::Atom(dwarf::DW_ATOM_die_tag, dwarf::DW_FORM_data2));
+ Atoms.push_back(
+ DwarfAccelTable::Atom(dwarf::DW_ATOM_type_flags, 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) {
+ for (SmallVectorImpl<Unit *>::const_iterator I = getUnits().begin(),
+ E = getUnits().end();
+ I != E; ++I) {
+ Unit *TheCU = *I;
+ const StringMap<std::vector<std::pair<const DIE *, unsigned> > > &Names =
+ TheCU->getAccelTypes();
+ for (StringMap<
+ std::vector<std::pair<const DIE *, unsigned> > >::const_iterator
+ GI = Names.begin(),
+ GE = Names.end();
+ GI != GE; ++GI) {
StringRef Name = GI->getKey();
- 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);
+ const std::vector<std::pair<const DIE *, unsigned> > &Entities =
+ GI->second;
+ for (std::vector<std::pair<const 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());
+ Asm->OutStreamer.SwitchSection(
+ Asm->getObjFileLowering().getDwarfAccelTypesSection());
MCSymbol *SectionBegin = Asm->GetTempSymbol("types_begin");
Asm->OutStreamer.EmitLabel(SectionBegin);
// reference in the pubname header doesn't change.
/// computeIndexValue - Compute the gdb index value for the DIE and CU.
-static dwarf::PubIndexEntryDescriptor computeIndexValue(CompileUnit *CU,
- DIE *Die) {
+static dwarf::PubIndexEntryDescriptor computeIndexValue(Unit *CU,
+ const DIE *Die) {
dwarf::GDBIndexEntryLinkage Linkage = dwarf::GIEL_STATIC;
// We could have a specification DIE that has our most of our knowledge,
GnuStyle ? Asm->getObjFileLowering().getDwarfGnuPubNamesSection()
: Asm->getObjFileLowering().getDwarfPubNamesSection();
- typedef DenseMap<const MDNode*, CompileUnit*> CUMapType;
- for (CUMapType::iterator I = CUMap.begin(), E = CUMap.end(); I != E; ++I) {
- CompileUnit *TheCU = I->second;
+ for (SmallVectorImpl<Unit *>::const_iterator I = getUnits().begin(),
+ E = getUnits().end();
+ I != E; ++I) {
+ Unit *TheCU = *I;
unsigned ID = TheCU->getUniqueID();
// Start the dwarf pubnames section.
// Emit a label so we can reference the beginning of this pubname section.
if (GnuStyle)
- Asm->OutStreamer.EmitLabel(Asm->GetTempSymbol("gnu_pubnames",
- TheCU->getUniqueID()));
+ Asm->OutStreamer.EmitLabel(
+ Asm->GetTempSymbol("gnu_pubnames", TheCU->getUniqueID()));
// Emit the header.
Asm->OutStreamer.AddComment("Length of Public Names Info");
4);
// Emit the pubnames for this compilation unit.
- const StringMap<DIE*> &Globals = TheCU->getGlobalNames();
- for (StringMap<DIE*>::const_iterator
- GI = Globals.begin(), GE = Globals.end(); GI != GE; ++GI) {
+ const StringMap<const DIE *> &Globals = TheCU->getGlobalNames();
+ for (StringMap<const DIE *>::const_iterator GI = Globals.begin(),
+ GE = Globals.end();
+ GI != GE; ++GI) {
const char *Name = GI->getKeyData();
- DIE *Entity = GI->second;
+ const DIE *Entity = GI->second;
Asm->OutStreamer.AddComment("DIE offset");
Asm->EmitInt32(Entity->getOffset());
if (Asm->isVerbose())
Asm->OutStreamer.AddComment("External Name");
- Asm->OutStreamer.EmitBytes(StringRef(Name, GI->getKeyLength()+1));
+ Asm->OutStreamer.EmitBytes(StringRef(Name, GI->getKeyLength() + 1));
}
Asm->OutStreamer.AddComment("End Mark");
GnuStyle ? Asm->getObjFileLowering().getDwarfGnuPubTypesSection()
: Asm->getObjFileLowering().getDwarfPubTypesSection();
- for (DenseMap<const MDNode *, CompileUnit *>::iterator I = CUMap.begin(),
- E = CUMap.end();
+ for (SmallVectorImpl<Unit *>::const_iterator I = getUnits().begin(),
+ E = getUnits().end();
I != E; ++I) {
- CompileUnit *TheCU = I->second;
+ Unit *TheCU = *I;
// Start the dwarf pubtypes section.
Asm->OutStreamer.SwitchSection(PSec);
// Emit a label so we can reference the beginning of this pubtype section.
if (GnuStyle)
- Asm->OutStreamer.EmitLabel(Asm->GetTempSymbol("gnu_pubtypes",
- TheCU->getUniqueID()));
+ Asm->OutStreamer.EmitLabel(
+ Asm->GetTempSymbol("gnu_pubtypes", TheCU->getUniqueID()));
// Emit the header.
Asm->OutStreamer.AddComment("Length of Public Types Info");
Asm->GetTempSymbol(ISec->getLabelBeginName(), TheCU->getUniqueID()), 4);
// Emit the pubtypes.
- const StringMap<DIE *> &Globals = TheCU->getGlobalTypes();
- for (StringMap<DIE *>::const_iterator GI = Globals.begin(),
- GE = Globals.end();
+ const StringMap<const DIE *> &Globals = TheCU->getGlobalTypes();
+ for (StringMap<const DIE *>::const_iterator GI = Globals.begin(),
+ GE = Globals.end();
GI != GE; ++GI) {
const char *Name = GI->getKeyData();
- DIE *Entity = GI->second;
+ const DIE *Entity = GI->second;
if (Asm->isVerbose())
Asm->OutStreamer.AddComment("DIE offset");
const MCSection *OffsetSection = NULL,
const MCSymbol *StrSecSym = NULL) {
- if (StringPool.empty()) return;
+ if (StringPool.empty())
+ return;
// Start the dwarf str section.
Asm->OutStreamer.SwitchSection(StrSection);
// Get all of the string pool entries and put them in an array by their ID so
// we can sort them.
- SmallVector<std::pair<unsigned,
- StringMapEntry<std::pair<MCSymbol*, unsigned> >*>, 64> Entries;
+ SmallVector<
+ std::pair<unsigned, StringMapEntry<std::pair<MCSymbol *, unsigned> > *>,
+ 64> Entries;
- for (StringMap<std::pair<MCSymbol*, unsigned> >::iterator
- I = StringPool.begin(), E = StringPool.end();
+ for (StringMap<std::pair<MCSymbol *, unsigned> >::iterator
+ I = StringPool.begin(),
+ E = StringPool.end();
I != E; ++I)
Entries.push_back(std::make_pair(I->second.second, &*I));
Asm->OutStreamer.EmitLabel(Entries[i].second->getValue().first);
// Emit the string itself with a terminating null byte.
- Asm->OutStreamer.EmitBytes(StringRef(Entries[i].second->getKeyData(),
- Entries[i].second->getKeyLength()+1));
+ Asm->OutStreamer.EmitBytes(
+ StringRef(Entries[i].second->getKeyData(),
+ Entries[i].second->getKeyLength() + 1));
}
// If we've got an offset section go ahead and emit that now as well.
}
}
-// Emit strings into a string section.
+
+// Emit addresses into the section given.
void DwarfUnits::emitAddresses(const MCSection *AddrSection) {
- if (AddressPool.empty()) return;
+ if (AddressPool.empty())
+ return;
// Start the dwarf addr section.
Asm->OutStreamer.SwitchSection(AddrSection);
else
Asm->OutStreamer.EmitIntValue(0, Asm->getDataLayout().getPointerSize());
}
-
}
// Emit visible names into a debug str section.
return;
for (SmallVectorImpl<DotDebugLocEntry>::iterator
- I = DotDebugLocEntries.begin(), E = DotDebugLocEntries.end();
+ I = DotDebugLocEntries.begin(),
+ E = DotDebugLocEntries.end();
I != E; ++I) {
DotDebugLocEntry &Entry = *I;
if (I + 1 != DotDebugLocEntries.end())
- Entry.Merge(I+1);
+ Entry.Merge(I + 1);
}
// Start the dwarf loc section.
Asm->OutStreamer.SwitchSection(
- Asm->getObjFileLowering().getDwarfLocSection());
+ Asm->getObjFileLowering().getDwarfLocSection());
unsigned char Size = Asm->getDataLayout().getPointerSize();
Asm->OutStreamer.EmitLabel(Asm->GetTempSymbol("debug_loc", 0));
unsigned index = 1;
for (SmallVectorImpl<DotDebugLocEntry>::iterator
- I = DotDebugLocEntries.begin(), E = DotDebugLocEntries.end();
+ I = DotDebugLocEntries.begin(),
+ E = DotDebugLocEntries.end();
I != E; ++I, ++index) {
DotDebugLocEntry &Entry = *I;
- if (Entry.isMerged()) continue;
+ if (Entry.isMerged())
+ continue;
if (Entry.isEmpty()) {
Asm->OutStreamer.EmitIntValue(0, Size);
Asm->OutStreamer.EmitIntValue(0, Size);
Asm->OutStreamer.EmitLabel(begin);
if (Entry.isInt()) {
DIBasicType BTy(DV.getType());
- if (BTy.Verify() &&
- (BTy.getEncoding() == dwarf::DW_ATE_signed
- || BTy.getEncoding() == dwarf::DW_ATE_signed_char)) {
+ if (BTy.Verify() && (BTy.getEncoding() == dwarf::DW_ATE_signed ||
+ BTy.getEncoding() == dwarf::DW_ATE_signed_char)) {
Asm->OutStreamer.AddComment("DW_OP_consts");
Asm->EmitInt8(dwarf::DW_OP_consts);
Asm->EmitSLEB128(Entry.getInt());
SymbolCUSorter(const MCStreamer &s) : Streamer(s) {}
const MCStreamer &Streamer;
- bool operator() (const SymbolCU &A, const SymbolCU &B) {
+ bool operator()(const SymbolCU &A, const SymbolCU &B) {
unsigned IA = A.Sym ? Streamer.GetSymbolOrder(A.Sym) : 0;
unsigned IB = B.Sym ? Streamer.GetSymbolOrder(B.Sym) : 0;
}
};
-static bool CUSort(const CompileUnit *A, const CompileUnit *B) {
- return (A->getUniqueID() < B->getUniqueID());
+static bool CUSort(const Unit *A, const Unit *B) {
+ return (A->getUniqueID() < B->getUniqueID());
}
struct ArangeSpan {
// address we can tie back to a CU.
void DwarfDebug::emitDebugARanges() {
// Start the dwarf aranges section.
- Asm->OutStreamer
- .SwitchSection(Asm->getObjFileLowering().getDwarfARangesSection());
+ Asm->OutStreamer.SwitchSection(
+ Asm->getObjFileLowering().getDwarfARangesSection());
typedef DenseMap<CompileUnit *, std::vector<ArangeSpan> > SpansType;
std::sort(Sections.begin(), Sections.end(), SectionSort);
// Build a set of address spans, sorted by CU.
- for (size_t SecIdx=0;SecIdx<Sections.size();SecIdx++) {
+ for (size_t SecIdx = 0; SecIdx < Sections.size(); SecIdx++) {
const MCSection *Section = Sections[SecIdx];
SmallVector<SymbolCU, 8> &List = SectionMap[Section];
if (List.size() < 2)
std::sort(CUs.begin(), CUs.end(), CUSort);
// Emit an arange table for each CU we used.
- for (size_t CUIdx=0;CUIdx<CUs.size();CUIdx++) {
+ for (size_t CUIdx = 0; CUIdx < CUs.size(); CUIdx++) {
CompileUnit *CU = CUs[CUIdx];
std::vector<ArangeSpan> &List = Spans[CU];
// Emit size of content not including length itself.
- unsigned ContentSize
- = sizeof(int16_t) // DWARF ARange version number
- + sizeof(int32_t) // Offset of CU in the .debug_info section
- + sizeof(int8_t) // Pointer Size (in bytes)
- + sizeof(int8_t); // Segment Size (in bytes)
+ unsigned ContentSize =
+ sizeof(int16_t) + // DWARF ARange version number
+ sizeof(int32_t) + // Offset of CU in the .debug_info section
+ sizeof(int8_t) + // Pointer Size (in bytes)
+ sizeof(int8_t); // Segment Size (in bytes)
unsigned TupleSize = PtrSize * 2;
// Emit visible names into a debug ranges section.
void DwarfDebug::emitDebugRanges() {
// Start the dwarf ranges section.
- Asm->OutStreamer
- .SwitchSection(Asm->getObjFileLowering().getDwarfRangesSection());
+ Asm->OutStreamer.SwitchSection(
+ Asm->getObjFileLowering().getDwarfRangesSection());
unsigned char Size = Asm->getDataLayout().getPointerSize();
- for (SmallVectorImpl<const MCSymbol *>::iterator
- I = DebugRangeSymbols.begin(), E = DebugRangeSymbols.end();
- I != E; ++I) {
- if (*I)
- Asm->OutStreamer.EmitSymbolValue(const_cast<MCSymbol*>(*I), Size);
+ for (uint32_t i = 0, e = DebugRangeSymbols.size(); i < e; ++i) {
+ // Only emit a symbol for every range pair for now.
+ // FIXME: Make this per range list.
+ if ((i % 2) == 0)
+ Asm->OutStreamer.EmitLabel(Asm->GetTempSymbol("debug_ranges", i));
+
+ const MCSymbol *I = DebugRangeSymbols[i];
+ if (I)
+ Asm->OutStreamer.EmitSymbolValue(I, Size);
else
Asm->OutStreamer.EmitIntValue(0, Size);
}
// Emit visible names into a debug macinfo section.
void DwarfDebug::emitDebugMacInfo() {
if (const MCSection *LineInfo =
- Asm->getObjFileLowering().getDwarfMacroInfoSection()) {
+ Asm->getObjFileLowering().getDwarfMacroInfoSection()) {
// Start the dwarf macinfo section.
Asm->OutStreamer.SwitchSection(LineInfo);
}
// Relocate to the beginning of the addr_base section, else 0 for the
// beginning of the one for this compile unit.
if (Asm->MAI->doesDwarfUseRelocationsAcrossSections())
- NewCU->addLabel(Die, dwarf::DW_AT_GNU_addr_base, dwarf::DW_FORM_sec_offset,
- DwarfAddrSectionSym);
+ NewCU->addSectionLabel(Die, dwarf::DW_AT_GNU_addr_base,
+ DwarfAddrSectionSym);
else
- NewCU->addUInt(Die, dwarf::DW_AT_GNU_addr_base,
- dwarf::DW_FORM_sec_offset, 0);
+ NewCU->addSectionOffset(Die, dwarf::DW_AT_GNU_addr_base, 0);
// 2.17.1 requires that we use DW_AT_low_pc for a single entry point
// into an entity. We're using 0, or a NULL label for this.
// compile unit in debug_line section.
// FIXME: Should handle multiple compile units.
if (Asm->MAI->doesDwarfUseRelocationsAcrossSections())
- NewCU->addLabel(Die, dwarf::DW_AT_stmt_list, dwarf::DW_FORM_sec_offset,
- DwarfLineSectionSym);
+ NewCU->addSectionLabel(Die, dwarf::DW_AT_stmt_list,
+ DwarfLineSectionSym);
else
- NewCU->addUInt(Die, dwarf::DW_AT_stmt_list, dwarf::DW_FORM_sec_offset, 0);
+ NewCU->addSectionOffset(Die, dwarf::DW_AT_stmt_list, 0);
if (!CompilationDir.empty())
NewCU->addLocalString(Die, dwarf::DW_AT_comp_dir, CompilationDir);
// Flags to let the linker know we have emitted new style pubnames.
if (GenerateGnuPubSections) {
if (Asm->MAI->doesDwarfUseRelocationsAcrossSections())
- NewCU->addLabel(Die, dwarf::DW_AT_GNU_pubnames, dwarf::DW_FORM_sec_offset,
- Asm->GetTempSymbol("gnu_pubnames", NewCU->getUniqueID()));
+ NewCU->addSectionLabel(
+ Die, dwarf::DW_AT_GNU_pubnames,
+ Asm->GetTempSymbol("gnu_pubnames", NewCU->getUniqueID()));
else
- NewCU->addDelta(Die, dwarf::DW_AT_GNU_pubnames, dwarf::DW_FORM_data4,
- Asm->GetTempSymbol("gnu_pubnames", NewCU->getUniqueID()),
- DwarfGnuPubNamesSectionSym);
+ NewCU->addSectionDelta(
+ Die, dwarf::DW_AT_GNU_pubnames,
+ Asm->GetTempSymbol("gnu_pubnames", NewCU->getUniqueID()),
+ DwarfGnuPubNamesSectionSym);
if (Asm->MAI->doesDwarfUseRelocationsAcrossSections())
- NewCU->addLabel(Die, dwarf::DW_AT_GNU_pubtypes, dwarf::DW_FORM_sec_offset,
- Asm->GetTempSymbol("gnu_pubtypes", NewCU->getUniqueID()));
+ NewCU->addSectionLabel(
+ Die, dwarf::DW_AT_GNU_pubtypes,
+ Asm->GetTempSymbol("gnu_pubtypes", NewCU->getUniqueID()));
else
- NewCU->addDelta(Die, dwarf::DW_AT_GNU_pubtypes, dwarf::DW_FORM_data4,
- Asm->GetTempSymbol("gnu_pubtypes", NewCU->getUniqueID()),
- DwarfGnuPubTypesSectionSym);
+ NewCU->addSectionDelta(
+ Die, dwarf::DW_AT_GNU_pubtypes,
+ Asm->GetTempSymbol("gnu_pubtypes", NewCU->getUniqueID()),
+ DwarfGnuPubTypesSectionSym);
}
// Flag if we've emitted any ranges and their location for the compile unit.
if (DebugRangeSymbols.size()) {
if (Asm->MAI->doesDwarfUseRelocationsAcrossSections())
- NewCU->addLabel(Die, dwarf::DW_AT_GNU_ranges_base,
- dwarf::DW_FORM_sec_offset, DwarfDebugRangeSectionSym);
+ NewCU->addSectionLabel(Die, dwarf::DW_AT_GNU_ranges_base,
+ DwarfDebugRangeSectionSym);
else
NewCU->addUInt(Die, dwarf::DW_AT_GNU_ranges_base, dwarf::DW_FORM_data4,
0);
}
SkeletonHolder.addUnit(NewCU);
- SkeletonCUs.push_back(NewCU);
return NewCU;
}
// sections.
void DwarfDebug::emitDebugStrDWO() {
assert(useSplitDwarf() && "No split dwarf?");
- const MCSection *OffSec = Asm->getObjFileLowering()
- .getDwarfStrOffDWOSection();
+ const MCSection *OffSec =
+ Asm->getObjFileLowering().getDwarfStrOffDWOSection();
const MCSymbol *StrSym = DwarfStrSectionSym;
InfoHolder.emitStrings(Asm->getObjFileLowering().getDwarfStrDWOSection(),
OffSec, StrSym);
}
+
+void DwarfDebug::addTypeUnitType(uint16_t Language, DIE *RefDie,
+ DICompositeType CTy) {
+ DenseMap<const MDNode *,
+ std::pair<uint64_t, SmallVectorImpl<DIE *> *> >::iterator I =
+ TypeUnits.find(CTy);
+ SmallVector<DIE *, 8> References;
+ References.push_back(RefDie);
+ if (I != TypeUnits.end()) {
+ if (I->second.second) {
+ I->second.second->push_back(RefDie);
+ return;
+ }
+ } else {
+ DIE *UnitDie = new DIE(dwarf::DW_TAG_type_unit);
+ TypeUnit *NewTU = new TypeUnit(GlobalCUIndexCount++, UnitDie, Language, Asm,
+ this, &InfoHolder);
+ NewTU->addUInt(UnitDie, dwarf::DW_AT_language, dwarf::DW_FORM_data2,
+ Language);
+
+ // Register the type in the TypeUnits map with a vector of references to be
+ // populated whenever a reference is required.
+ I = TypeUnits.insert(std::make_pair(CTy, std::make_pair(0, &References)))
+ .first;
+
+ // Construct the type, this may, recursively, require more type units that
+ // may in turn require this type again - in which case they will add DIEs to
+ // the References vector.
+ DIE *Die = NewTU->createTypeDIE(CTy);
+
+ if (GenerateODRHash && shouldAddODRHash(NewTU, Die))
+ NewTU->addUInt(UnitDie, dwarf::DW_AT_GNU_odr_signature,
+ dwarf::DW_FORM_data8,
+ DIEHash().computeDIEODRSignature(*Die));
+ // FIXME: This won't handle circularly referential structures, as the DIE
+ // may have references to other DIEs still under construction and missing
+ // their signature. Hashing should walk through the signatures to their
+ // referenced type, or possibly walk the precomputed hashes of related types
+ // at the end.
+ uint64_t Signature = DIEHash().computeTypeSignature(*Die);
+
+ // Remove the References vector and add the type hash.
+ I->second.first = Signature;
+ I->second.second = NULL;
+
+ InfoHolder.addUnit(NewTU);
+ }
+
+ // Populate all the signatures.
+ for (unsigned i = 0, e = References.size(); i != e; ++i) {
+ CUMap.begin()->second->addUInt(References[i], dwarf::DW_AT_signature,
+ dwarf::DW_FORM_ref_sig8, I->second.first);
+ }
+}
projects / oota-llvm.git / blobdiff