Debugger crashes while loading symbols for libJavaScriptCore.so.18.7.4

[KapiX]

To reproduce:

1. Build debug WebKit with Tools/Scripts/build-webkit --haiku --debug
2. In WebKitBuild/Debug try to run HaikuLauncher with Debugger.

I tried to add -gdwarf-4 -gstrict-dwarf but it didn't help.

[X512]

Seems like stack overflow.

[pulkomandy]

Indeed, infinite(?) recursion in trying to resolve the namespace for a symbol, and eventually stack overflow. It would probably help to trace the BString that's being built by these functions to see what it's trying to represent, and checking if there is somehow a cycle in the parent/child relationship between debug info entries?

[waddlesplash]

Looks nearly identical to #14346, which I reported some time ago.

[KapiX]

Function at fault:

template<typename T>
CString nodeValuePairListDump(const T& nodeValuePairList, DumpContext* context = 0)
{
    using V = typename T::ValueType;
    T sortedList = nodeValuePairList;
    std::sort(sortedList.begin(), sortedList.end(), [](const V& a, const V& b) {
        return NodeComparator()(a.node, b.node);
    });

Symbol

JSC::DFG::nodeValuePairListDump<WTF::Vector<JSC::DFG::NodeAbstractValuePair, 0ul, WTF::CrashOnOverflow, 16ul, WTF::FastMalloc> >(WTF::Vector<JSC::DFG::NodeAbstractValuePair, 0ul, WTF::CrashOnOverflow, 16ul, WTF::FastMalloc> const&, JSC::DumpContext*)::{lambda(JSC::DFG::NodeAbstractValuePair const&, JSC::DFG::NodeAbstractValuePair const&)#1}::operator()(JSC::DFG::NodeAbstractValuePair const&, JSC::DFG::NodeAbstractValuePair const&) const

It loops after resolving up to (in GetFullyQualifiedDIEName):

JSC::DFG::nodeValuePairListDump<WTF::Vector<JSC::DFG::NodeAbstractValuePair> >(const WTF::Vector<JSC::DFG::NodeAbstractValuePair, 0, WTF::CrashOnOverflow, 16, WTF::FastMalloc>&, JSC::DumpContext*)::<lambda(const V&, const V&)>::

then in GetFullDIEName:

generatedName {
	fPrivateData: operator()(
}