From mboxrd@z Thu Jan 1 00:00:00 1970 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=-7.1 required=3.0 tests=BAYES_00,DKIMWL_WL_HIGH, DKIM_SIGNED,DKIM_VALID,DKIM_VALID_AU,HEADER_FROM_DIFFERENT_DOMAINS, MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS,USER_AGENT_GIT autolearn=no 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 8C8FCC433DF for ; Sun, 2 Aug 2020 01:32:37 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 6A1C12076A for ; Sun, 2 Aug 2020 01:32:37 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (1024-bit key) header.d=fb.com header.i=@fb.com header.b="MAVeXzu0" Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1727991AbgHBBcg (ORCPT ); Sat, 1 Aug 2020 21:32:36 -0400 Received: from mx0a-00082601.pphosted.com ([67.231.145.42]:1678 "EHLO mx0a-00082601.pphosted.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1727945AbgHBBcg (ORCPT ); Sat, 1 Aug 2020 21:32:36 -0400 Received: from pps.filterd (m0044010.ppops.net [127.0.0.1]) by mx0a-00082601.pphosted.com (8.16.0.42/8.16.0.42) with SMTP id 0721RfBC021096 for ; Sat, 1 Aug 2020 18:32:35 -0700 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=fb.com; h=from : to : cc : subject : date : message-id : mime-version : content-transfer-encoding : content-type; s=facebook; bh=WAggz1fU5MIx6n6t+uOJUiZQ+L8/i+pibaoJqrV74Y8=; b=MAVeXzu0S/V+MlfpN7K9NC907y6zf41+hvEYgttiZ0c2tt8JFX8n2XdO1U768N14sbAB tpW6O8fifDEVcy0W/5uEtFl0b7xPLl6Oum9X9CIKONVrf9oEUmb5C3FlWdEIlpY23GCG KC9mbQ0E1hydnfBE3fQV79Y2BXswbbwAD78= Received: from maileast.thefacebook.com ([163.114.130.16]) by mx0a-00082601.pphosted.com with ESMTP id 32n7sbhss9-1 (version=TLSv1.2 cipher=ECDHE-RSA-AES128-GCM-SHA256 bits=128 verify=NOT) for ; Sat, 01 Aug 2020 18:32:35 -0700 Received: from intmgw003.08.frc2.facebook.com (2620:10d:c0a8:1b::d) by mail.thefacebook.com (2620:10d:c0a8:83::6) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256) id 15.1.1979.3; Sat, 1 Aug 2020 18:32:28 -0700 Received: by devbig012.ftw2.facebook.com (Postfix, from userid 137359) id CC6B72EC50C3; Sat, 1 Aug 2020 18:32:20 -0700 (PDT) Smtp-Origin-Hostprefix: devbig From: Andrii Nakryiko Smtp-Origin-Hostname: devbig012.ftw2.facebook.com To: , , , CC: , , Andrii Nakryiko Smtp-Origin-Cluster: ftw2c04 Subject: [PATCH bpf-next 0/3] Add generic and raw BTF parsing APIs to libbpf Date: Sat, 1 Aug 2020 18:32:16 -0700 Message-ID: <20200802013219.864880-1-andriin@fb.com> X-Mailer: git-send-email 2.24.1 MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable X-FB-Internal: Safe Content-Type: text/plain X-Proofpoint-Virus-Version: vendor=fsecure engine=2.50.10434:6.0.235,18.0.687 definitions=2020-08-02_01:2020-07-31,2020-08-02 signatures=0 X-Proofpoint-Spam-Details: rule=fb_default_notspam policy=fb_default score=0 mlxlogscore=806 bulkscore=0 priorityscore=1501 suspectscore=8 impostorscore=0 phishscore=0 clxscore=1015 lowpriorityscore=0 spamscore=0 mlxscore=0 adultscore=0 malwarescore=0 classifier=spam adjust=0 reason=mlx scancount=1 engine=8.12.0-2006250000 definitions=main-2008020009 X-FB-Internal: deliver Sender: netdev-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: netdev@vger.kernel.org It's pretty common for applications to want to parse raw (binary) BTF dat= a from file, as opposed to parsing it from ELF sections. It's also pretty c= ommon for tools to not care whether given file is ELF or raw BTF format. This p= atch series exposes internal raw BTF parsing API and adds generic variant of B= TF parsing, which will efficiently determine the format of a given fail and = will parse BTF appropriately. Patches #2 and #3 removes re-implementations of such APIs from bpftool an= d resolve_btfids tools. Andrii Nakryiko (3): libbpf: add btf__parse_raw() and generic btf__parse() APIs tools/bpftool: use libbpf's btf__parse() API for parsing BTF from file tools/resolve_btfids: use libbpf's btf__parse() API tools/bpf/bpftool/btf.c | 54 +------------ tools/bpf/resolve_btfids/.gitignore | 4 + tools/bpf/resolve_btfids/main.c | 58 +------------- tools/lib/bpf/btf.c | 114 +++++++++++++++++++--------- tools/lib/bpf/btf.h | 5 +- tools/lib/bpf/libbpf.map | 2 + 6 files changed, 89 insertions(+), 148 deletions(-) create mode 100644 tools/bpf/resolve_btfids/.gitignore --=20 2.24.1