tools/testing/selftests/bpf/progs/test_trace_ext_tracing.c

   1 // SPDX-License-Identifier: GPL-2.0
   2
   3 #include "vmlinux.h"
   4 #include <bpf/bpf_helpers.h>
   5 #include <bpf/bpf_tracing.h>
   6
   7 __u64 fentry_called = 0;
   8
   9 SEC("fentry/test_pkt_md_access_new")
  10 int BPF_PROG(fentry, struct sk_buff *skb)
  11 {
  12         fentry_called = skb->len;
  13         return 0;
  14 }
  15
  16 __u64 fexit_called = 0;
  17
  18 SEC("fexit/test_pkt_md_access_new")
  19 int BPF_PROG(fexit, struct sk_buff *skb)
  20 {
  21         fexit_called = skb->len;
  22         return 0;
  23 }
  24
  25 char _license[] SEC("license") = "GPL";