private ClrMethodData?FindJitCompiledMethodInMethodTable(SOSDac sos, MethodDescData originalMethodDesc)
{
// I can't really explain this, but it seems that some methods
// are present multiple times in the same type -- one compiled
// and one not compiled.
if (!sos.GetMethodTableData(originalMethodDesc.MethodTable, out var methodTable))
{
return(null);
}
ClrMethodData?methodData = null;
for (var i = 0u; i < methodTable.NumMethods; i++)
{
if (i == originalMethodDesc.SlotNumber)
{
continue;
}
var slot = sos.GetMethodTableSlot(originalMethodDesc.MethodTable, i);
if (!sos.GetCodeHeaderData(slot, out var candidateCodeHeader))
{
continue;
}
if (!sos.GetMethodDescData(candidateCodeHeader.MethodDesc, 0, out var candidateMethodDesc))
{
continue;
}
if (candidateMethodDesc.MDToken != originalMethodDesc.MDToken)
{
continue;
}
methodData = GetJitCompiledMethodByCodeHeaderIfValid(sos, candidateCodeHeader);
if (methodData != null)
{
break;
}
}
return(methodData);
}
private ClrMethodData?GetJitCompiledMethodByMethodDescIfValid(SOSDac sos, MethodDescData methodDesc)
{
// https://github.com/microsoft/clrmd/issues/935
var codeHeaderAddress = methodDesc.HasNativeCode != 0
? (ulong)methodDesc.NativeCodeAddr
: sos.GetMethodTableSlot(methodDesc.MethodTable, methodDesc.SlotNumber);
if (codeHeaderAddress == unchecked ((ulong)-1))
{
return(null);
}
if (!sos.GetCodeHeaderData(codeHeaderAddress, out var codeHeader))
{
return(null);
}
return(GetJitCompiledMethodByCodeHeaderIfValid(sos, codeHeader));
}
