///
bool DwarfRequiresFrameSection; // Defaults to true.
+ /// DwarfUsesInlineInfoSection - True if DwarfDebugInlineSection is used to
+ /// encode inline subroutine information.
+ bool DwarfUsesInlineInfoSection; // Defaults to false.
+
/// SupportsMacInfo - true if the Dwarf output supports macro information
///
bool SupportsMacInfoSection; // Defaults to true
/// DwarfPubTypesSection - Section directive for Dwarf info.
///
const char *DwarfPubTypesSection; // Defaults to ".debug_pubtypes".
-
+
+ /// DwarfDebugInlineSection - Section directive for inline info.
+ ///
+ const char *DwarfDebugInlineSection; // Defaults to ".debug_inlined"
+
/// DwarfStrSection - Section directive for Dwarf info.
///
const char *DwarfStrSection; // Defaults to ".debug_str".
bool doesDwarfRequireFrameSection() const {
return DwarfRequiresFrameSection;
}
+ bool doesDwarfUsesInlineInfoSection() const {
+ return DwarfUsesInlineInfoSection;
+ }
bool doesSupportMacInfoSection() const {
return SupportsMacInfoSection;
}
const char *getDwarfPubTypesSection() const {
return DwarfPubTypesSection;
}
+ const char *getDwarfDebugInlineSection() const {
+ return DwarfDebugInlineSection;
+ }
const char *getDwarfStrSection() const {
return DwarfStrSection;
}
/// DbgScopeMap - Tracks the scopes in the current function.
DenseMap<GlobalVariable *, DbgScope *> DbgScopeMap;
+ /// InlineInfo - Keep track of inlined functions and their location.
+ /// This information is used to populate debug_inlined section.
+ DenseMap<GlobalVariable *, SmallVector<unsigned, 4> > InlineInfo;
+
/// DebugTimer - Timer for the Dwarf debug writer.
Timer *DebugTimer;
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 = MMI->MappedLabel(Scope->getStartLabelID());
unsigned EndID = MMI->MappedLabel(Scope->getEndLabelID());
// Ignore empty scopes.
if (StartID == EndID && StartID != 0) continue;
- if (Scope->getScopes().empty() && Scope->getVariables().empty()) continue;
+
+ // Do not ignore inlined scope even if it is empty. Inlined scope
+ // does not have any parent.
+ if (Scope->getParent()
+ && Scope->getScopes().empty() && Scope->getVariables().empty())
+ continue;
if (StartID == ParentStartID && EndID == ParentEndID) {
// Just add stuff to the parent scope.
}
}
+ /// EmitDebugInlineInfo - Emit inline info using following format.
+ /// Section Header:
+ /// 1. length of section
+ /// 2. Dwarf version number
+ /// 3. address size.
+ ///
+ /// Entries (one "entry" for each function that was inlined):
+ ///
+ /// 1. offset into __debug_str section for MIPS linkage name, if exists;
+ /// otherwise offset into __debug_str for regular function name.
+ /// 2. offset into __debug_str section for regular function name.
+ /// 3. an unsigned LEB128 number indicating the number of distinct inlining
+ /// instances for the function.
+ ///
+ /// The rest of the entry consists of a {die_offset, low_pc} pair for each
+ /// inlined instance; the die_offset points to the inlined_subroutine die in
+ /// the __debug_info section, and the low_pc is the starting address for the
+ /// inlining instance.
+ void EmitDebugInlineInfo() {
+ if (!TAI->doesDwarfUsesInlineInfoSection())
+ return;
+
+ if (!MainCU)
+ return;
+
+ Asm->SwitchToDataSection(TAI->getDwarfDebugInlineSection());
+ Asm->EOL();
+ EmitDifference("debug_inlined_end", 1,
+ "debug_inlined_begin", 1, true);
+ Asm->EOL("Length of Debug Inlined Information Entry");
+
+ EmitLabel("debug_inlined_begin", 1);
+
+ Asm->EmitInt16(DWARF_VERSION); Asm->EOL("Dwarf Version");
+ Asm->EmitInt8(TD->getPointerSize()); Asm->EOL("Address Size (in bytes)");
+
+ for (DenseMap<GlobalVariable *, SmallVector<unsigned, 4> >::iterator
+ I = InlineInfo.begin(), E = InlineInfo.end(); I != E; ++I) {
+ GlobalVariable *GV = I->first;
+ SmallVector<unsigned, 4> &Labels = I->second;
+ DISubprogram SP(GV);
+ std::string Name;
+ std::string LName;
+
+ SP.getLinkageName(LName);
+ SP.getName(Name);
+
+ Asm->EmitString(LName.empty() ? Name : LName);
+ Asm->EOL("MIPS linkage name");
+
+ Asm->EmitString(Name); Asm->EOL("Function name");
+
+ Asm->EmitULEB128Bytes(Labels.size()); Asm->EOL("Inline count");
+
+ for (SmallVector<unsigned, 4>::iterator LI = Labels.begin(),
+ LE = Labels.end(); LI != LE; ++LI) {
+ DIE *SP = MainCU->getDieMapSlotFor(GV);
+ Asm->EmitInt32(SP->getOffset()); Asm->EOL("DIE offset");
+
+ if (TD->getPointerSize() == sizeof(int32_t))
+ O << TAI->getData32bitsDirective();
+ else
+ O << TAI->getData64bitsDirective();
+ PrintLabelName("label", *LI); Asm->EOL("low_pc");
+ }
+ }
+
+ EmitLabel("debug_inlined_end", 1);
+ Asm->EOL();
+ }
+
/// GetOrCreateSourceID - Look up the source id with the given directory and
/// source file names. If none currently exists, create a new id and insert it
/// in the SourceIds map. This can update DirectoryNames and SourceFileNames maps
// Emit info into a debug macinfo section.
EmitDebugMacInfo();
+ // Emit inline info.
+ EmitDebugInlineInfo();
+
if (TimePassesIsEnabled)
DebugTimer->stopTimer();
}
return ID;
}
+ /// RecordRegionStart - Indicate the start of a region.
+ unsigned RecordRegionStart(GlobalVariable *V, unsigned ID) {
+ if (TimePassesIsEnabled)
+ DebugTimer->startTimer();
+
+ DbgScope *Scope = getOrCreateScope(V);
+ if (!Scope->getStartLabelID()) Scope->setStartLabelID(ID);
+
+ if (TimePassesIsEnabled)
+ DebugTimer->stopTimer();
+
+ return ID;
+ }
+
/// RecordRegionEnd - Indicate the end of a region.
unsigned RecordRegionEnd(GlobalVariable *V) {
if (TimePassesIsEnabled)
if (TimePassesIsEnabled)
DebugTimer->stopTimer();
}
+
+ //// RecordInlineInfo - Global variable GV is inlined at the location marked
+ //// by LabelID label.
+ void RecordInlineInfo(GlobalVariable *GV, unsigned LabelID) {
+ MMI->RecordUsedDbgLabel(LabelID);
+ DenseMap<GlobalVariable *, SmallVector<unsigned, 4> >::iterator
+ I = InlineInfo.find(GV);
+ if (I == InlineInfo.end()) {
+ SmallVector<unsigned, 4> Labels;
+ Labels.push_back(LabelID);
+ InlineInfo[GV] = Labels;
+ return;
+ }
+
+ SmallVector<unsigned, 4> &Labels = I->second;
+ Labels.push_back(LabelID);
+ }
};
//===----------------------------------------------------------------------===//
return DD->RecordRegionStart(V);
}
+/// RecordRegionStart - Indicate the start of a region.
+unsigned DwarfWriter::RecordRegionStart(GlobalVariable *V, unsigned ID) {
+ return DD->RecordRegionStart(V, ID);
+}
+
/// RecordRegionEnd - Indicate the end of a region.
unsigned DwarfWriter::RecordRegionEnd(GlobalVariable *V) {
return DD->RecordRegionEnd(V);
bool DwarfWriter::ShouldEmitDwarfDebug() const {
return DD->ShouldEmitDwarfDebug();
}
+
+//// RecordInlineInfo - Global variable GV is inlined at the location marked
+//// by LabelID label.
+void DwarfWriter::RecordInlineInfo(GlobalVariable *GV, unsigned LabelID) {
+ DD->RecordInlineInfo(GV, LabelID);
+}
+
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