diff options
| author |   Song Liu <songliubraving@fb.com> | 2020-04-30 00:15:05 -0700 |
|---|---|---|
| committer |   Alexei Starovoitov <ast@kernel.org> | 2020-05-01 10:36:32 -0700 |
| commit | 0bee106716cfb2c6da81916b968395db22bd7755 (patch) | |
| tree | 6a438ee3a2376d99a6cccee19c280f2e4e791db8 /tools/lib | |
| parent | bpf: Sharing bpf runtime stats with BPF_ENABLE_STATS (diff) | |
| download | wireguard-linux-0bee106716cfb2c6da81916b968395db22bd7755.tar.xz wireguard-linux-0bee106716cfb2c6da81916b968395db22bd7755.zip | |
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
Diffstat (limited to 'tools/lib')
| -rw-r--r-- | tools/lib/bpf/bpf.c | 10 | ||||
| -rw-r--r-- | tools/lib/bpf/bpf.h | 1 | ||||
| -rw-r--r-- | tools/lib/bpf/libbpf.map | 1 |
3 files changed, 12 insertions, 0 deletions
diff --git a/tools/lib/bpf/bpf.c b/tools/lib/bpf/bpf.c index 8f2f0958d446..43322f0d6c7f 100644 --- a/tools/lib/bpf/bpf.c +++ b/tools/lib/bpf/bpf.c @@ -841,3 +841,13 @@ 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; + + memset(&attr, 0, sizeof(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 335b457b3a25..1901b2777854 100644 --- a/tools/lib/bpf/bpf.h +++ b/tools/lib/bpf/bpf.h @@ -231,6 +231,7 @@ 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 7cd49aa38005..e03bd4db827e 100644 --- a/tools/lib/bpf/libbpf.map +++ b/tools/lib/bpf/libbpf.map @@ -257,6 +257,7 @@ LIBBPF_0.0.8 { LIBBPF_0.0.9 { global: + bpf_enable_stats; bpf_link_get_fd_by_id; bpf_link_get_next_id; } LIBBPF_0.0.8; |