LXR linux/tools/testing/selftests/bpf/progs/test_get_stack_rawtp

   1// SPDX-License-Identifier: GPL-2.0
   2
   3#include <linux/bpf.h>
   4#include <bpf/bpf_helpers.h>
   5
   6#define MAX_STACK_RAWTP 10
   7
   8SEC("raw_tracepoint/sys_enter")
   9int bpf_prog2(void *ctx)
  10{
  11        __u64 stack[MAX_STACK_RAWTP];
  12        int error;
  13
  14        /* set all the flags which should return -EINVAL */
  15        error = bpf_get_stack(ctx, stack, 0, -1);
  16        if (error < 0)
  17                goto loop;
  18
  19        return error;
  20loop:
  21        while (1) {
  22                error++;
  23        }
  24}
  25
  26char _license[] SEC("license") = "GPL";
  27