This patch add an accessor which allows caller to get count of programs in an object file.
Signed-off-by: Wang Nan <[email protected]> Acked-by: Alexei Starovoitov <[email protected]> Cc: Brendan Gregg <[email protected]> Cc: Daniel Borkmann <[email protected]> Cc: David Ahern <[email protected]> Cc: He Kuang <[email protected]> Cc: Jiri Olsa <[email protected]> Cc: Kaixu Xia <[email protected]> Cc: Masami Hiramatsu <[email protected]> Cc: Namhyung Kim <[email protected]> Cc: Paul Mackerras <[email protected]> Cc: Peter Zijlstra <[email protected]> Cc: Zefan Li <[email protected]> Cc: [email protected] Link: http://lkml.kernel.org/r/[email protected] Signed-off-by: Arnaldo Carvalho de Melo <[email protected]> --- tools/lib/bpf/libbpf.c | 9 +++++++++ tools/lib/bpf/libbpf.h | 3 +++ 2 files changed, 12 insertions(+) diff --git a/tools/lib/bpf/libbpf.c b/tools/lib/bpf/libbpf.c index b1575c4..b58b13b 100644 --- a/tools/lib/bpf/libbpf.c +++ b/tools/lib/bpf/libbpf.c @@ -946,6 +946,15 @@ void bpf_object__close(struct bpf_object *obj) free(obj); } +int bpf_object__get_prog_cnt(struct bpf_object *obj, size_t *pcnt) +{ + if (!obj || !pcnt) + return -EINVAL; + + *pcnt = obj->nr_programs; + return 0; +} + struct bpf_program * bpf_program__next(struct bpf_program *prev, struct bpf_object *obj) { diff --git a/tools/lib/bpf/libbpf.h b/tools/lib/bpf/libbpf.h index 9e0e102..a20ae2e 100644 --- a/tools/lib/bpf/libbpf.h +++ b/tools/lib/bpf/libbpf.h @@ -35,6 +35,9 @@ void bpf_object__close(struct bpf_object *object); int bpf_object__load(struct bpf_object *obj); int bpf_object__unload(struct bpf_object *obj); +/* Accessors of bpf_object */ +int bpf_object__get_prog_cnt(struct bpf_object *obj, size_t *pcnt); + /* Accessors of bpf_program. */ struct bpf_program; struct bpf_program *bpf_program__next(struct bpf_program *prog, -- 1.8.3.4 -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to [email protected] More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
