dwarf stacktrace in bpf
dwarf stacktrace in bpf
Posted Apr 14, 2021 13:27 UTC (Wed) by fuhchee (guest, #40059)In reply to: dwarf stacktrace in bpf by seanyoung
Parent article: Comparing SystemTap and bpftrace
> Loops are allowed
Last I heard, this was compile-time bounded, implemented by unrolling.
Posted Apr 14, 2021 14:14 UTC (Wed)
by mathstuf (subscriber, #69389)
[Link]
dwarf stacktrace in bpf
This article[1] is the latest I can find. You can have bounded loops now, but they must be verifiable. Validating that there is an end to the stack is data-dependent and likely not allowed. One could get up to a fixed stack size though I presume.