TCMalloc has different abort handlers for each function: If preempted, we need to know where to restart. If `rseq_cs` is no longer describing a relevant addres

TCMalloc has different abort handlers for each function: If preempted, we need to know where to restart. If `rseq_cs` is no longer describing a relevant address, that is, the program counter has moved past it, the kernel just ignores it.