From patchwork Tue Sep 28 14:07:33 2021 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Hou Tao X-Patchwork-Id: 12522839 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 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 71F07C433EF for ; Tue, 28 Sep 2021 13:53:45 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 55501611BD for ; Tue, 28 Sep 2021 13:53:45 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S241105AbhI1NzX (ORCPT ); Tue, 28 Sep 2021 09:55:23 -0400 Received: from szxga02-in.huawei.com ([45.249.212.188]:22377 "EHLO szxga02-in.huawei.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S241058AbhI1NzV (ORCPT ); Tue, 28 Sep 2021 09:55:21 -0400 Received: from dggemv704-chm.china.huawei.com (unknown [172.30.72.56]) by szxga02-in.huawei.com (SkyGuard) with ESMTP id 4HJgpn3Qt9zRF8m; Tue, 28 Sep 2021 21:49:21 +0800 (CST) Received: from dggpeml500025.china.huawei.com (7.185.36.35) by dggemv704-chm.china.huawei.com (10.3.19.47) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256) id 15.1.2308.8; Tue, 28 Sep 2021 21:53:38 +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; Tue, 28 Sep 2021 21:53:37 +0800 From: Hou Tao To: Alexei Starovoitov CC: Yonghong Song , Daniel Borkmann , "Andrii Nakryiko" , Martin KaFai Lau , , , Subject: [PATCH bpf-next v3 2/3] libbpf: support detecting and attaching of writable tracepoint program Date: Tue, 28 Sep 2021 22:07:33 +0800 Message-ID: <20210928140734.1274261-3-houtao1@huawei.com> X-Mailer: git-send-email 2.29.2 In-Reply-To: <20210928140734.1274261-1-houtao1@huawei.com> References: <20210928140734.1274261-1-houtao1@huawei.com> MIME-Version: 1.0 X-Originating-IP: [10.175.124.27] X-ClientProxiedBy: dggems706-chm.china.huawei.com (10.3.19.183) 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 ef5db34bf913..b874c0179084 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.w/", RAW_TRACEPOINT_WRITABLE, + .attach_fn = attach_raw_tp), + SEC_DEF("raw_tp.w/", RAW_TRACEPOINT_WRITABLE, + .attach_fn = attach_raw_tp), SEC_DEF("tp_btf/", TRACING, .expected_attach_type = BPF_TRACE_RAW_TP, .is_attach_btf = true,