On Sat, Apr 28, 2018 at 12:02:04AM -0700, Yonghong Song wrote:
> The test attached a raw_tracepoint program to sched/sched_switch.
> It tested to get stack for user space, kernel space and user
> space with build_id request. It also tested to get user
> and kernel stack into the same buffer with back-to-back
> bpf_get_stack helper calls.
>
> Whenever the kernel stack is available, the user space
> application will check to ensure that the kernel function
> for raw_tracepoint ___bpf_prog_run is part of the stack.
>
> Signed-off-by: Yonghong Song <y...@fb.com>
...
> +static int get_stack_print_output(void *data, int size)
> +{
> + bool good_kern_stack = false, good_user_stack = false;
> + const char *expected_func = "___bpf_prog_run";
so the test works with interpreter only?
I guess that's ok for now, but needs to fixed for
configs with CONFIG_BPF_JIT_ALWAYS_ON=y
