Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S965273AbbGHNYy (ORCPT ); Wed, 8 Jul 2015 09:24:54 -0400 Received: from szxga01-in.huawei.com ([58.251.152.64]:56824 "EHLO szxga01-in.huawei.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S934393AbbGHNPR (ORCPT ); Wed, 8 Jul 2015 09:15:17 -0400 From: Wang Nan To: , CC: , , , , Subject: [PATCH v11 21/39] bpf tools: Introduce accessors for struct bpf_object Date: Wed, 8 Jul 2015 13:14:10 +0000 Message-ID: <1436361268-234530-22-git-send-email-wangnan0@huawei.com> X-Mailer: git-send-email 1.8.3.4 In-Reply-To: <1436361268-234530-1-git-send-email-wangnan0@huawei.com> References: <1436361268-234530-1-git-send-email-wangnan0@huawei.com> MIME-Version: 1.0 Content-Type: text/plain X-Originating-IP: [10.107.197.200] X-CFilter-Loop: Reflected Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 2182 Lines: 66 This patch add an accessor which allows caller to get count of programs in an object file. Signed-off-by: Wang Nan Acked-by: Alexei Starovoitov Cc: Brendan Gregg Cc: Daniel Borkmann Cc: David Ahern Cc: He Kuang Cc: Jiri Olsa Cc: Kaixu Xia Cc: Masami Hiramatsu Cc: Namhyung Kim Cc: Paul Mackerras Cc: Peter Zijlstra Cc: Zefan Li Cc: pi3orama@163.com Link: http://lkml.kernel.org/r/1435716878-189507-22-git-send-email-wangnan0@huawei.com Signed-off-by: Arnaldo Carvalho de Melo --- 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 majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/