From dfddba015cf3581ef1dfe672a79745d731a6222e Mon Sep 17 00:00:00 2001 From: Song Liu Date: Thu, 30 Apr 2020 00:15:05 -0700 Subject: [PATCH] libbpf: Add support for command BPF_ENABLE_STATS bpf_enable_stats() is added to enable given stats. Signed-off-by: Song Liu Signed-off-by: Alexei Starovoitov Link: https://lore.kernel.org/bpf/20200430071506.1408910-3-songliubraving@fb.com --- tools/lib/bpf/bpf.c | 10 ++++++++++ tools/lib/bpf/bpf.h | 1 + tools/lib/bpf/libbpf.map | 1 + 3 files changed, 12 insertions(+) diff --git a/tools/lib/bpf/bpf.c b/tools/lib/bpf/bpf.c index 8f2f0958d446a..43322f0d6c7f1 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 335b457b3a25d..1901b2777854a 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 7cd49aa380057..e03bd4db827e5 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; -- 2.39.5