Re: BPF runtime for systemtap

2016-06-14 Thread Frank Ch. Eigler
brendan.d.gregg wrote: > [...] > Great! Is there a hello world example in there somewhere? I found this: > [...] Yup. Here is a smoke test. (A great many other things are not yet working.) % sudo ./stap -v --runtime=bpf -e 'global foo probe kprobe.function("vfs_read"), kprobe.function("

Re: BPF runtime for systemtap

2016-06-14 Thread Brendan Gregg
On Tue, Jun 14, 2016 at 1:06 PM, Richard Henderson wrote: > I'm pleased to be able to announce an initial implementation of an (e)bpf > backend for systemtap. For the subset of systemtap probes that can use > kprobes, we can use a bpf filter instead of loading a kernel module. > > As this impleme

BPF runtime for systemtap

2016-06-14 Thread Richard Henderson
I'm pleased to be able to announce an initial implementation of an (e)bpf backend for systemtap. For the subset of systemtap probes that can use kprobes, we can use a bpf filter instead of loading a kernel module. As this implementation is young, there are a number of limitations. Neither st