bpf/prog_tests/enable_stats.c

0001 // SPDX-License-Identifier: GPL-2.0
0002 #include <test_progs.h>
0003 #include "test_enable_stats.skel.h"
0004
0005 void test_enable_stats(void)
0006 {
0007     struct test_enable_stats *skel;
0008     int stats_fd, err, prog_fd;
0009     struct bpf_prog_info info;
0010     __u32 info_len = sizeof(info);
0011     int duration = 0;
0012
0013     skel = test_enable_stats__open_and_load();
0014     if (CHECK(!skel, "skel_open_and_load", "skeleton open/load failed\n"))
0015         return;
0016
0017     stats_fd = bpf_enable_stats(BPF_STATS_RUN_TIME);
0018     if (CHECK(stats_fd < 0, "get_stats_fd", "failed %d\n", errno)) {
0019         test_enable_stats__destroy(skel);
0020         return;
0021     }
0022
0023     err = test_enable_stats__attach(skel);
0024     if (CHECK(err, "attach_raw_tp", "err %d\n", err))
0025         goto cleanup;
0026
0027     test_enable_stats__detach(skel);
0028
0029     prog_fd = bpf_program__fd(skel->progs.test_enable_stats);
0030     memset(&info, 0, info_len);
0031     err = bpf_obj_get_info_by_fd(prog_fd, &info, &info_len);
0032     if (CHECK(err, "get_prog_info",
0033           "failed to get bpf_prog_info for fd %d\n", prog_fd))
0034         goto cleanup;
0035     if (CHECK(info.run_time_ns == 0, "check_stats_enabled",
0036           "failed to enable run_time_ns stats\n"))
0037         goto cleanup;
0038
0039     CHECK(info.run_cnt != skel->bss->count, "check_run_cnt_valid",
0040           "invalid run_cnt stats\n");
0041
0042 cleanup:
0043     test_enable_stats__destroy(skel);
0044     close(stats_fd);
0045 }