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

   1 // SPDX-License-Identifier: GPL-2.0
   2 /* Copyright (c) 2023 Isovalent */
   3
   4 #include "vmlinux.h"
   5 #include <bpf/bpf_helpers.h>
   6 #include <bpf/bpf_tracing.h>
   7
   8 __u32 target_id;
   9
  10 __s64 bpf_map_sum_elem_count(struct bpf_map *map) __ksym;
  11
  12 SEC("iter/bpf_map")
  13 int dump_bpf_map(struct bpf_iter__bpf_map *ctx)
  14 {
  15         struct seq_file *seq = ctx->meta->seq;
  16         struct bpf_map *map = ctx->map;
  17
  18         if (map && map->id == target_id)
  19                 BPF_SEQ_PRINTF(seq, "%lld", bpf_map_sum_elem_count(map));
  20
  21         return 0;
  22 }
  23
  24 char _license[] SEC("license") = "GPL";