From patchwork Mon Jun 1 20:26:01 2020 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Andrii Nakryiko X-Patchwork-Id: 218069 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=-9.9 required=3.0 tests=DKIMWL_WL_HIGH, DKIM_SIGNED, DKIM_VALID, DKIM_VALID_AU, HEADER_FROM_DIFFERENT_DOMAINS, INCLUDES_PATCH, MAILING_LIST_MULTI, SIGNED_OFF_BY, SPF_HELO_NONE, SPF_PASS, USER_AGENT_GIT autolearn=unavailable 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 EA82CC433E0 for ; Mon, 1 Jun 2020 20:26:08 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id B9A002073B for ; Mon, 1 Jun 2020 20:26:08 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (1024-bit key) header.d=fb.com header.i=@fb.com header.b="Jh2daGpQ" Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1727957AbgFAU0I (ORCPT ); Mon, 1 Jun 2020 16:26:08 -0400 Received: from mx0b-00082601.pphosted.com ([67.231.153.30]:1764 "EHLO mx0b-00082601.pphosted.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1726944AbgFAU0H (ORCPT ); Mon, 1 Jun 2020 16:26:07 -0400 Received: from pps.filterd (m0109331.ppops.net [127.0.0.1]) by mx0a-00082601.pphosted.com (8.16.0.42/8.16.0.42) with SMTP id 051KNDC6032519 for ; Mon, 1 Jun 2020 13:26:06 -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=jhVyv6SCTRhzcDbzRM8m3iHR5YxHnLZfRHg/sXy5jco=; b=Jh2daGpQykN0yGVwI3SBQweg3X+FGVGJVA7KWidJJXlVkMhHd27Rkfop2p4Dz2hiUCps jvBs4QgS8RJgoSKatFnn05clGBZ+m9E2tw7GRwewCkC+3LlUYdwkjR/sNgepc7pRp3Um j8KddyuMr0p4AuNr0hgkYB/FT2aktH3oZSo= Received: from mail.thefacebook.com ([163.114.132.120]) by mx0a-00082601.pphosted.com with ESMTP id 31bnafq636-1 (version=TLSv1.2 cipher=ECDHE-RSA-AES128-GCM-SHA256 bits=128 verify=NOT) for ; Mon, 01 Jun 2020 13:26:06 -0700 Received: from intmgw001.08.frc2.facebook.com (2620:10d:c085:208::f) by mail.thefacebook.com (2620:10d:c085:21d::4) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256) id 15.1.1979.3; Mon, 1 Jun 2020 13:26:04 -0700 Received: by devbig012.ftw2.facebook.com (Postfix, from userid 137359) id 526082EC2FCF; Mon, 1 Jun 2020 13:26:03 -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] libbpf: add _GNU_SOURCE for reallocarray to ringbuf.c Date: Mon, 1 Jun 2020 13:26:01 -0700 Message-ID: <20200601202601.2139477-1-andriin@fb.com> X-Mailer: git-send-email 2.24.1 MIME-Version: 1.0 X-FB-Internal: Safe X-Proofpoint-Virus-Version: vendor=fsecure engine=2.50.10434:6.0.216, 18.0.687 definitions=2020-06-01_12:2020-06-01,2020-06-01 signatures=0 X-Proofpoint-Spam-Details: rule=fb_default_notspam policy=fb_default score=0 lowpriorityscore=0 malwarescore=0 mlxlogscore=507 impostorscore=0 bulkscore=0 clxscore=1015 phishscore=0 suspectscore=8 adultscore=0 mlxscore=0 spamscore=0 cotscore=-2147483648 priorityscore=1501 classifier=spam adjust=0 reason=mlx scancount=1 engine=8.12.0-2004280000 definitions=main-2006010148 X-FB-Internal: deliver Sender: netdev-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: netdev@vger.kernel.org On systems with recent enough glibc, reallocarray compat won't kick in, so reallocarray() itself has to come from stdlib.h include. But _GNU_SOURCE is necessary to enable it. So add it. Fixes: 4cff2ba58bf1 ("libbpf: Add BPF ring buffer support") Signed-off-by: Andrii Nakryiko --- tools/lib/bpf/ringbuf.c | 3 +++ 1 file changed, 3 insertions(+) diff --git a/tools/lib/bpf/ringbuf.c b/tools/lib/bpf/ringbuf.c index bc10fa1d43c7..4fc6c6cbb4eb 100644 --- a/tools/lib/bpf/ringbuf.c +++ b/tools/lib/bpf/ringbuf.c @@ -4,6 +4,9 @@ * * Copyright (C) 2020 Facebook, Inc. */ +#ifndef _GNU_SOURCE +#define _GNU_SOURCE +#endif #include #include #include