编译时报错

[wtyfpc]

bpf/io.bpf.c:42:5: error: member reference base type 'u64' (aka 'unsigned long long') is not a structure or union
   42 |     CHECK_CGID(knode);
      |     ^~~~~~~~~~~~~~~~~
./include/ebpf.h:139:56: note: expanded from macro 'CHECK_CGID'
  139 |     if (target_cgroupid > 0 && BPF_CORE_READ(_knode, id.id) != target_cgroupid) \
      |                                ~~~~~~~~~~~~~~~~~~~~~~~~^~~~
./.output/bpf/bpf_core_read.h:520:17: note: expanded from macro 'BPF_CORE_READ'
  520 |         ___type((src), a, ##__VA_ARGS__) __r;                               \
      |         ~~~~~~~~~~~~~~~^~~~~~~~~~~~~~~~~
./.output/bpf/bpf_core_read.h:391:38: note: expanded from macro '___type'
  391 | #define ___type(...) typeof(___arrow(__VA_ARGS__))
      |                             ~~~~~~~~~^~~~~~~~~~~~
./.output/bpf/bpf_core_read.h:389:64: note: expanded from macro '___arrow'
  389 | #define ___arrow(...) ___apply(___arrow, ___narg(__VA_ARGS__))(__VA_ARGS__)
      |                       ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~^~~~~~~~~~~~
./.output/bpf/bpf_core_read.h:380:28: note: expanded from macro '___arrow2'
  380 | #define ___arrow2(a, b) a->b