tools/testing/selftests/bpf/prog_tests/enable_stats.c

   1 // SPDX-License-Identifier: GPL-2.0
   2 #include <test_progs.h>
   3 #include "test_enable_stats.skel.h"
   4
   5 void test_enable_stats(void)
   6 {
   7         struct test_enable_stats *skel;
   8         int stats_fd, err, prog_fd;
   9         struct bpf_prog_info info;
  10         __u32 info_len = sizeof(info);
  11         int duration = 0;
  12
  13         skel = test_enable_stats__open_and_load();
  14         if (CHECK(!skel, "skel_open_and_load", "skeleton open/load failed\n"))
  15                 return;
  16
  17         stats_fd = bpf_enable_stats(BPF_STATS_RUN_TIME);
  18         if (CHECK(stats_fd < 0, "get_stats_fd", "failed %d\n", errno)) {
  19                 test_enable_stats__destroy(skel);
  20                 return;
  21         }
  22
  23         err = test_enable_stats__attach(skel);
  24         if (CHECK(err, "attach_raw_tp", "err %d\n", err))
  25                 goto cleanup;
  26
  27         test_enable_stats__detach(skel);
  28
  29         prog_fd = bpf_program__fd(skel->progs.test_enable_stats);
  30         memset(&info, 0, info_len);
  31         err = bpf_prog_get_info_by_fd(prog_fd, &info, &info_len);
  32         if (CHECK(err, "get_prog_info",
  33                   "failed to get bpf_prog_info for fd %d\n", prog_fd))
  34                 goto cleanup;
  35         if (CHECK(info.run_time_ns == 0, "check_stats_enabled",
  36                   "failed to enable run_time_ns stats\n"))
  37                 goto cleanup;
  38
  39         CHECK(info.run_cnt != skel->bss->count, "check_run_cnt_valid",
  40               "invalid run_cnt stats\n");
  41
  42 cleanup:
  43         test_enable_stats__destroy(skel);
  44         close(stats_fd);
  45 }