On 01/06/21 15:42, Andrii Nakryiko wrote: > On Wed, Jan 6, 2021 at 3:27 AM Qais Yousef <qais.yousef@xxxxxxx> wrote: > > > > On 01/05/21 08:44, Alexei Starovoitov wrote: > > > > Any pointer to an example test I could base this on? > > > > > > selftests/bpf/ > > > > I was hoping for something more elaborate. I thought there's something already > > there that do some verification for raw tracepoint that I could either extend > > or replicate. Otherwise this could end up being a time sink for me and I'm not > > keen on jumping down this rabbit hole. > > One way would be to add either another custom tracepoint definition to > a test module or modify the existing one to be a bare tracepoint. See > links below. > > If it's easy to trigger those tracepoints from user-space on demand, > writing a similar (to module_attach) selftest for in-kernel tracepoint > is trivial. > > [0] https://github.com/torvalds/linux/blob/master/tools/testing/selftests/bpf/bpf_testmod/bpf_testmod-events.h > [1] https://github.com/torvalds/linux/blob/master/tools/testing/selftests/bpf/progs/test_module_attach.c#L12-L18 > [2] https://github.com/torvalds/linux/blob/master/tools/testing/selftests/bpf/prog_tests/module_attach.c Thanks a lot Andrii. That will make it much easier to figure out something. Cheers -- Qais Yousef
