libbpf: Add support for command BPF_ENABLE_STATS
bpf_enable_stats() is added to enable given stats. Signed-off-by: Song Liu <songliubraving@fb.com> Signed-off-by: Alexei Starovoitov <ast@kernel.org> Link: https://lore.kernel.org/bpf/20200430071506.1408910-3-songliubraving@fb.com
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0bee106716
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@ -841,3 +841,13 @@ int bpf_task_fd_query(int pid, int fd, __u32 flags, char *buf, __u32 *buf_len,
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return err;
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}
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int bpf_enable_stats(enum bpf_stats_type type)
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{
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union bpf_attr attr;
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memset(&attr, 0, sizeof(attr));
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attr.enable_stats.type = type;
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return sys_bpf(BPF_ENABLE_STATS, &attr, sizeof(attr));
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}
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@ -231,6 +231,7 @@ LIBBPF_API int bpf_load_btf(void *btf, __u32 btf_size, char *log_buf,
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LIBBPF_API int bpf_task_fd_query(int pid, int fd, __u32 flags, char *buf,
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__u32 *buf_len, __u32 *prog_id, __u32 *fd_type,
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__u64 *probe_offset, __u64 *probe_addr);
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LIBBPF_API int bpf_enable_stats(enum bpf_stats_type type);
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#ifdef __cplusplus
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} /* extern "C" */
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@ -257,6 +257,7 @@ LIBBPF_0.0.8 {
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LIBBPF_0.0.9 {
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global:
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bpf_enable_stats;
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bpf_link_get_fd_by_id;
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bpf_link_get_next_id;
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} LIBBPF_0.0.8;
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