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31a9f7fe93
Add test for BPF_ENABLE_STATS, which should enable run_time_ns stats. ~/selftests/bpf# ./test_progs -t enable_stats -v test_enable_stats:PASS:skel_open_and_load 0 nsec test_enable_stats:PASS:get_stats_fd 0 nsec test_enable_stats:PASS:attach_raw_tp 0 nsec test_enable_stats:PASS:get_prog_info 0 nsec test_enable_stats:PASS:check_stats_enabled 0 nsec test_enable_stats:PASS:check_run_cnt_valid 0 nsec Summary: 1/0 PASSED, 0 SKIPPED, 0 FAILED Signed-off-by: Song Liu <songliubraving@fb.com> Signed-off-by: Alexei Starovoitov <ast@kernel.org> Acked-by: Andrii Nakryiko <andriin@fb.com> Link: https://lore.kernel.org/bpf/20200430071506.1408910-4-songliubraving@fb.com
45 lines
1.2 KiB
C
45 lines
1.2 KiB
C
// SPDX-License-Identifier: GPL-2.0
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#include <test_progs.h>
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#include "test_enable_stats.skel.h"
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void test_enable_stats(void)
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{
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struct test_enable_stats *skel;
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int stats_fd, err, prog_fd;
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struct bpf_prog_info info;
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__u32 info_len = sizeof(info);
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int duration = 0;
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skel = test_enable_stats__open_and_load();
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if (CHECK(!skel, "skel_open_and_load", "skeleton open/load failed\n"))
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return;
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stats_fd = bpf_enable_stats(BPF_STATS_RUN_TIME);
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if (CHECK(stats_fd < 0, "get_stats_fd", "failed %d\n", errno)) {
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test_enable_stats__destroy(skel);
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return;
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}
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err = test_enable_stats__attach(skel);
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if (CHECK(err, "attach_raw_tp", "err %d\n", err))
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goto cleanup;
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test_enable_stats__detach(skel);
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prog_fd = bpf_program__fd(skel->progs.test_enable_stats);
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memset(&info, 0, info_len);
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err = bpf_obj_get_info_by_fd(prog_fd, &info, &info_len);
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if (CHECK(err, "get_prog_info",
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"failed to get bpf_prog_info for fd %d\n", prog_fd))
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goto cleanup;
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if (CHECK(info.run_time_ns == 0, "check_stats_enabled",
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"failed to enable run_time_ns stats\n"))
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goto cleanup;
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CHECK(info.run_cnt != skel->bss->count, "check_run_cnt_valid",
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"invalid run_cnt stats\n");
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cleanup:
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test_enable_stats__destroy(skel);
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close(stats_fd);
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}
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