Re: [PATCHv2 perf/core 13/22] selftests/bpf: Rename uprobe_syscall_executed prog to test_uretprobe_multi

From: Jiri Olsa
Date: Fri May 16 2025 - 03:48:36 EST


On Thu, May 15, 2025 at 10:24:42AM -0700, Andrii Nakryiko wrote:

SNIP

> > diff --git a/tools/testing/selftests/bpf/progs/uprobe_syscall_executed.c b/tools/testing/selftests/bpf/progs/uprobe_syscall_executed.c
> > index 0d7f1a7db2e2..c4c3447378ba 100644
> > --- a/tools/testing/selftests/bpf/progs/uprobe_syscall_executed.c
> > +++ b/tools/testing/selftests/bpf/progs/uprobe_syscall_executed.c
> > @@ -8,10 +8,17 @@ struct pt_regs regs;
> > char _license[] SEC("license") = "GPL";
> >
> > int executed = 0;
> > +int pid;
> >
> > -SEC("uretprobe.multi")
> > -int test(struct pt_regs *regs)
> > +static int inc_executed(void)
> > {
> > - executed = 1;
> > + if (bpf_get_current_pid_tgid() >> 32 == pid)
> > + executed++;
>
> it's customary (and makes sense to me) with filtering like this to not
> add nestedness:
>
>
> if (bpf_get_current_pid_tgid() >> 32 != pid)
> return 0;
>
> executed += 1;
> return 0;

ok, will change

jirka

>
> > return 0;
> > }
> > +
> > +SEC("uretprobe.multi")
> > +int test_uretprobe_multi(struct pt_regs *ctx)
> > +{
> > + return inc_executed();
> > +}
> > --
> > 2.49.0
> >