Add tls lower bound, resolve #1848
Add tls lower bound, resolve #1848

martin-kolinek/stack,AndrewRademacher/stack,mrkkrp/stack,Fuuzetsu/stack,Blaisorblade/stack,Fuuzetsu/stack,AndrewRademacher/stack,Heather/stack,MichielDerhaeg/stack,Heather/stack,juhp/stack,anton-dessiatov/stack,deech/stack,martin-kolinek/stack,mrkkrp/stack,deech/stack,AndreasPK/stack,AndreasPK/stack,sjakobi/stack,sjakobi/stack,anton-dessiatov/stack,MichielDerhaeg/stack,juhp/stack,Blaisorblade/stack