From patchwork Sat Sep 18 02:09:57 2021 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Hou Tao X-Patchwork-Id: 12503443 X-Patchwork-Delegate: bpf@iogearbox.net Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-16.8 required=3.0 tests=BAYES_00, HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_CR_TRAILER,INCLUDES_PATCH, MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS,USER_AGENT_GIT autolearn=ham autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 94697C433EF for ; Sat, 18 Sep 2021 01:56:07 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 788FE61246 for ; Sat, 18 Sep 2021 01:56:07 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S238442AbhIRB51 (ORCPT ); Fri, 17 Sep 2021 21:57:27 -0400 Received: from szxga03-in.huawei.com ([45.249.212.189]:16273 "EHLO szxga03-in.huawei.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S236829AbhIRB50 (ORCPT ); Fri, 17 Sep 2021 21:57:26 -0400 Received: from dggemv703-chm.china.huawei.com (unknown [172.30.72.54]) by szxga03-in.huawei.com (SkyGuard) with ESMTP id 4HBDRZ2mrVz8tFj; Sat, 18 Sep 2021 09:55:22 +0800 (CST) Received: from dggpeml500025.china.huawei.com (7.185.36.35) by dggemv703-chm.china.huawei.com (10.3.19.46) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256) id 15.1.2308.8; Sat, 18 Sep 2021 09:55:57 +0800 Received: from huawei.com (10.175.124.27) by dggpeml500025.china.huawei.com (7.185.36.35) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256) id 15.1.2308.8; Sat, 18 Sep 2021 09:55:56 +0800 From: Hou Tao To: Alexei Starovoitov , Yonghong Song CC: Daniel Borkmann , Andrii Nakryiko , Martin KaFai Lau , , , Subject: [PATCH bpf-next v2 2/3] libbpf: support detecting and attaching of writable tracepoint program Date: Sat, 18 Sep 2021 10:09:57 +0800 Message-ID: <20210918020958.1167652-3-houtao1@huawei.com> X-Mailer: git-send-email 2.29.2 In-Reply-To: <20210918020958.1167652-1-houtao1@huawei.com> References: <20210918020958.1167652-1-houtao1@huawei.com> MIME-Version: 1.0 X-Originating-IP: [10.175.124.27] X-ClientProxiedBy: dggems701-chm.china.huawei.com (10.3.19.178) To dggpeml500025.china.huawei.com (7.185.36.35) X-CFilter-Loop: Reflected Precedence: bulk List-ID: X-Mailing-List: bpf@vger.kernel.org X-Patchwork-Delegate: bpf@iogearbox.net Program on writable tracepoint is BPF_PROG_TYPE_RAW_TRACEPOINT_WRITABLE, but its attachment is the same as BPF_PROG_TYPE_RAW_TRACEPOINT. Signed-off-by: Hou Tao --- tools/lib/bpf/libbpf.c | 4 ++++ 1 file changed, 4 insertions(+) diff --git a/tools/lib/bpf/libbpf.c b/tools/lib/bpf/libbpf.c index da65a1666a5e..981fcdd95bdc 100644 --- a/tools/lib/bpf/libbpf.c +++ b/tools/lib/bpf/libbpf.c @@ -7976,6 +7976,10 @@ static const struct bpf_sec_def section_defs[] = { .attach_fn = attach_raw_tp), SEC_DEF("raw_tp/", RAW_TRACEPOINT, .attach_fn = attach_raw_tp), + SEC_DEF("raw_tracepoint_writable/", RAW_TRACEPOINT_WRITABLE, + .attach_fn = attach_raw_tp), + SEC_DEF("raw_tp_writable/", RAW_TRACEPOINT_WRITABLE, + .attach_fn = attach_raw_tp), SEC_DEF("tp_btf/", TRACING, .expected_attach_type = BPF_TRACE_RAW_TP, .is_attach_btf = true,