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=-4.1 required=3.0 tests=DKIMWL_WL_HIGH,DKIM_SIGNED, DKIM_VALID,DKIM_VALID_AU,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 55FD0C00523 for ; Wed, 8 Jan 2020 07:25:51 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 1F807205F4 for ; Wed, 8 Jan 2020 07:25:51 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1578468351; bh=8TPpdSu9IJs6Ub56yvJlAaEMPBJuLHOmmHLj5N5Ygi8=; h=From:To:CC:Subject:Date:List-ID:From; b=W081qjP1pHLMOtS+iC9ZAw7swAZ7lHdO853FGbFlR0IG0M9P3zmVqHLEfl+WGW0qO WXQZVBCRZmw/rxY3eghVU0d1CT/uxIMzDSMft1IMBur+OmtlYtmvWoOBstIGS7ZFzb MfjV46/ePDtY14Q/ipX5lHurMtFTFFsAO9uecA9o= Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1726734AbgAHHZu convert rfc822-to-8bit (ORCPT ); Wed, 8 Jan 2020 02:25:50 -0500 Received: from mx0a-00082601.pphosted.com ([67.231.145.42]:1304 "EHLO mx0a-00082601.pphosted.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1725944AbgAHHZu (ORCPT ); Wed, 8 Jan 2020 02:25:50 -0500 Received: from pps.filterd (m0109333.ppops.net [127.0.0.1]) by mx0a-00082601.pphosted.com (8.16.0.42/8.16.0.42) with SMTP id 0087PndV015493 for ; Tue, 7 Jan 2020 23:25:49 -0800 Received: from mail.thefacebook.com ([163.114.132.120]) by mx0a-00082601.pphosted.com with ESMTP id 2xd3ep1w2w-5 (version=TLSv1.2 cipher=ECDHE-RSA-AES128-GCM-SHA256 bits=128 verify=NOT) for ; Tue, 07 Jan 2020 23:25:49 -0800 Received: from intmgw002.41.prn1.facebook.com (2620:10d:c085:108::8) by mail.thefacebook.com (2620:10d:c085:11d::5) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256) id 15.1.1779.2; Tue, 7 Jan 2020 23:25:48 -0800 Received: by devbig007.ftw2.facebook.com (Postfix, from userid 572438) id A7FA2760DB5; Tue, 7 Jan 2020 23:25:38 -0800 (PST) Smtp-Origin-Hostprefix: devbig From: Alexei Starovoitov Smtp-Origin-Hostname: devbig007.ftw2.facebook.com To: CC: , , , Smtp-Origin-Cluster: ftw2c04 Subject: [PATCH bpf-next 0/6] bpf: Introduce global functions Date: Tue, 7 Jan 2020 23:25:32 -0800 Message-ID: <20200108072538.3359838-1-ast@kernel.org> X-Mailer: git-send-email 2.23.0 MIME-Version: 1.0 Content-Transfer-Encoding: 8BIT X-FB-Internal: Safe Content-Type: text/plain X-Proofpoint-Virus-Version: vendor=fsecure engine=2.50.10434:6.0.138,18.0.572 definitions=2020-01-08_01:2020-01-07,2020-01-08 signatures=0 X-Proofpoint-Spam-Details: rule=fb_default_notspam policy=fb_default score=0 malwarescore=0 mlxlogscore=474 phishscore=0 clxscore=1034 impostorscore=0 mlxscore=0 adultscore=0 bulkscore=0 lowpriorityscore=0 spamscore=0 priorityscore=1501 suspectscore=1 classifier=spam adjust=0 reason=mlx scancount=1 engine=8.12.0-1910280000 definitions=main-2001080063 X-FB-Internal: deliver Sender: bpf-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: bpf@vger.kernel.org Introduce static vs global functions and function by function verification. This is another step toward dynamic re-linking (or replacement) of global functions. See patch 3 for details. The rest are supporting patches. Alexei Starovoitov (6): libbpf: Sanitize BTF_KIND_FUNC linkage libbpf: Collect static vs global info about functions bpf: Introduce function-by-function verification selftests/bpf: Add fexit-to-skb test for global funcs selftests/bpf: Add a test for a large global function selftests/bpf: Modify a test to check global functions include/linux/bpf.h | 7 +- include/linux/bpf_verifier.h | 7 +- include/uapi/linux/btf.h | 6 + kernel/bpf/btf.c | 147 ++++++++--- kernel/bpf/verifier.c | 228 ++++++++++++++---- tools/include/uapi/linux/btf.h | 6 + tools/lib/bpf/libbpf.c | 150 +++++++++++- .../bpf/prog_tests/bpf_verif_scale.c | 2 + .../selftests/bpf/prog_tests/fexit_bpf2bpf.c | 1 + .../selftests/bpf/progs/fexit_bpf2bpf.c | 15 ++ tools/testing/selftests/bpf/progs/pyperf.h | 9 +- .../selftests/bpf/progs/pyperf_global.c | 5 + .../selftests/bpf/progs/test_pkt_access.c | 28 +++ .../selftests/bpf/progs/test_xdp_noinline.c | 4 +- 14 files changed, 528 insertions(+), 87 deletions(-) create mode 100644 tools/testing/selftests/bpf/progs/pyperf_global.c -- 2.23.0