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Date: Thu, 23 Apr 2020 23:17:54 -0700 From: Song Liu <songliubraving@...com> To: <bpf@...r.kernel.org>, <netdev@...r.kernel.org> CC: <ast@...nel.org>, <daniel@...earbox.net>, <kernel-team@...com>, Song Liu <songliubraving@...com> Subject: [PATCH v4 bpf-next 2/3] libbpf: add support for command BPF_ENABLE_STATS bpf_enable_stats() is added to enable given stats. Signed-off-by: Song Liu <songliubraving@...com> --- tools/lib/bpf/bpf.c | 9 +++++++++ tools/lib/bpf/bpf.h | 1 + tools/lib/bpf/libbpf.map | 5 +++++ 3 files changed, 15 insertions(+) diff --git a/tools/lib/bpf/bpf.c b/tools/lib/bpf/bpf.c index 5cc1b0785d18..c06c25293ab7 100644 --- a/tools/lib/bpf/bpf.c +++ b/tools/lib/bpf/bpf.c @@ -826,3 +826,12 @@ int bpf_task_fd_query(int pid, int fd, __u32 flags, char *buf, __u32 *buf_len, return err; } + +int bpf_enable_stats(enum bpf_stats_type type) +{ + union bpf_attr attr = {}; + + attr.enable_stats.type = type; + + return sys_bpf(BPF_ENABLE_STATS, &attr, sizeof(attr)); +} diff --git a/tools/lib/bpf/bpf.h b/tools/lib/bpf/bpf.h index 46d47afdd887..5996e64d324c 100644 --- a/tools/lib/bpf/bpf.h +++ b/tools/lib/bpf/bpf.h @@ -229,6 +229,7 @@ LIBBPF_API int bpf_load_btf(void *btf, __u32 btf_size, char *log_buf, LIBBPF_API int bpf_task_fd_query(int pid, int fd, __u32 flags, char *buf, __u32 *buf_len, __u32 *prog_id, __u32 *fd_type, __u64 *probe_offset, __u64 *probe_addr); +LIBBPF_API int bpf_enable_stats(enum bpf_stats_type type); #ifdef __cplusplus } /* extern "C" */ diff --git a/tools/lib/bpf/libbpf.map b/tools/lib/bpf/libbpf.map index bb8831605b25..ebd946faada5 100644 --- a/tools/lib/bpf/libbpf.map +++ b/tools/lib/bpf/libbpf.map @@ -254,3 +254,8 @@ LIBBPF_0.0.8 { bpf_program__set_lsm; bpf_set_link_xdp_fd_opts; } LIBBPF_0.0.7; + +LIBBPF_0.0.9 { + global: + bpf_enable_stats; +} LIBBPF_0.0.8; \ No newline at end of file -- 2.24.1
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