From patchwork Fri Nov 6 13:49:38 2015 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Wang Nan X-Patchwork-Id: 56126 Delivered-To: patch@linaro.org Received: by 10.112.61.134 with SMTP id p6csp1023662lbr; Fri, 6 Nov 2015 05:51:48 -0800 (PST) X-Received: by 10.67.14.166 with SMTP id fh6mr18271375pad.156.1446817908674; Fri, 06 Nov 2015 05:51:48 -0800 (PST) Return-Path: Received: from vger.kernel.org (vger.kernel.org. [209.132.180.67]) by mx.google.com with ESMTP id dg1si262565pad.228.2015.11.06.05.51.48; Fri, 06 Nov 2015 05:51:48 -0800 (PST) Received-SPF: pass (google.com: best guess record for domain of linux-kernel-owner@vger.kernel.org designates 209.132.180.67 as permitted sender) client-ip=209.132.180.67; Authentication-Results: mx.google.com; spf=pass (google.com: best guess record for domain of linux-kernel-owner@vger.kernel.org designates 209.132.180.67 as permitted sender) smtp.mailfrom=linux-kernel-owner@vger.kernel.org Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1161712AbbKFNvN (ORCPT + 28 others); Fri, 6 Nov 2015 08:51:13 -0500 Received: from szxga03-in.huawei.com ([119.145.14.66]:8675 "EHLO szxga03-in.huawei.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1161484AbbKFNuZ (ORCPT ); Fri, 6 Nov 2015 08:50:25 -0500 Received: from 172.24.1.48 (EHLO szxeml430-hub.china.huawei.com) ([172.24.1.48]) by szxrg03-dlp.huawei.com (MOS 4.4.3-GA FastPath queued) with ESMTP id BQN18149; Fri, 06 Nov 2015 21:50:03 +0800 (CST) Received: from linux-4hy3.site (10.107.193.248) by szxeml430-hub.china.huawei.com (10.82.67.185) with Microsoft SMTP Server id 14.3.235.1; Fri, 6 Nov 2015 21:49:53 +0800 From: Wang Nan To: , CC: , , , , Wang Nan , Arnaldo Carvalho de Melo Subject: [PATCH v2 2/7] bpf tools: Add new API bpf_object__get_kversion() Date: Fri, 6 Nov 2015 13:49:38 +0000 Message-ID: <1446817783-86722-3-git-send-email-wangnan0@huawei.com> X-Mailer: git-send-email 1.8.3.4 In-Reply-To: <1446817783-86722-1-git-send-email-wangnan0@huawei.com> References: <1446817783-86722-1-git-send-email-wangnan0@huawei.com> MIME-Version: 1.0 X-Originating-IP: [10.107.193.248] X-CFilter-Loop: Reflected X-Mirapoint-Virus-RAPID-Raw: score=unknown(0), refid=str=0001.0A090205.563CB010.0008, ss=1, re=0.000, recu=0.000, reip=0.000, cl=1, cld=1, fgs=0, ip=0.0.0.0, so=2013-05-26 15:14:31, dmn=2013-03-21 17:37:32 X-Mirapoint-Loop-Id: 0933e2cb2c3ff16fafc3b62ce632ed99 Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org bpf_object__get_kversion() can be used to fetch value of object's 'version' section. Following patch will use it for error reporting. Signed-off-by: Wang Nan Cc: Arnaldo Carvalho de Melo Cc: Namhyung Kim --- tools/lib/bpf/libbpf.c | 8 ++++++++ tools/lib/bpf/libbpf.h | 1 + 2 files changed, 9 insertions(+) -- 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/ diff --git a/tools/lib/bpf/libbpf.c b/tools/lib/bpf/libbpf.c index 07b492d..e176bad 100644 --- a/tools/lib/bpf/libbpf.c +++ b/tools/lib/bpf/libbpf.c @@ -1055,6 +1055,14 @@ bpf_object__get_name(struct bpf_object *obj) return obj->path; } +unsigned int +bpf_object__get_kversion(struct bpf_object *obj) +{ + if (!obj) + return 0; + return obj->kern_version; +} + 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 30a40e9..c9a9aef 100644 --- a/tools/lib/bpf/libbpf.h +++ b/tools/lib/bpf/libbpf.h @@ -56,6 +56,7 @@ void bpf_object__close(struct bpf_object *object); int bpf_object__load(struct bpf_object *obj); int bpf_object__unload(struct bpf_object *obj); const char *bpf_object__get_name(struct bpf_object *obj); +unsigned int bpf_object__get_kversion(struct bpf_object *obj); struct bpf_object *bpf_object__next(struct bpf_object *prev); #define bpf_object__for_each_safe(pos, tmp) \