From nobody Mon Sep 15 23:20:38 2025 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 vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id B1647C6379F for ; Mon, 9 Jan 2023 20:34:53 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S237301AbjAIUew (ORCPT ); Mon, 9 Jan 2023 15:34:52 -0500 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:48838 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S235310AbjAIUet (ORCPT ); Mon, 9 Jan 2023 15:34:49 -0500 Received: from mail-pf1-x44a.google.com (mail-pf1-x44a.google.com [IPv6:2607:f8b0:4864:20::44a]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 4A4A2625DC for ; Mon, 9 Jan 2023 12:34:48 -0800 (PST) Received: by mail-pf1-x44a.google.com with SMTP id k127-20020a628485000000b0058029fb70a3so3967874pfd.19 for ; Mon, 09 Jan 2023 12:34:48 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=google.com; s=20210112; h=cc:to:from:subject:references:mime-version:message-id:in-reply-to :date:from:to:cc:subject:date:message-id:reply-to; bh=tHhCz4k6MsqFldWGTt35hGeLdTBertltyGAk8DkitQI=; b=jYreWH3G8qj8aqLI2lf2fojvZ1VbNj626aIjavkpLCvO0HobsS7JXqXnaJI+xr+DL2 D6r06OX4moENxNPfWztM6ExFvIWlwX19QTFwl7izchuAdcEpyvhIGQ4+wuDlN6NfePKf Sx1p9CGyBRPgtBal6aqpiqUF4+PPgboVUxnv+ha4A7fWoL7RyVxRe70QOeLBkeGwaZY4 KQlctpFPDPKMZX5uoc3ALB1Hi5plVOwuSqDre0tG6b67mSnZigwASw46MPZu8Lbd5XxZ WvsOZwmrEsZjLvYvnTam4OKDbZvtYUA2R/uP6EkmwOei0TNH+/RMfzFON69/IJKklj0R ij0g== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20210112; h=cc:to:from:subject:references:mime-version:message-id:in-reply-to :date:x-gm-message-state:from:to:cc:subject:date:message-id:reply-to; bh=tHhCz4k6MsqFldWGTt35hGeLdTBertltyGAk8DkitQI=; b=rMS0iww/MIs/bhVfIZqqH7LQZcpMdnMDI6i58KBLk500jaxrm6edBlEhIE9F/v0eOS wgQ5gxAE7PkfY4buFq+5CsBu+3tQc4NBa0WDQ4lt3e6pIENAiInlm0xVBN3hTpWJB7ll k3GNzYiZB64sXpglB/xke/ep2wEi4OjxIMHMiGKMUSkROZVc5wyH0mEVhDFYa4+duKIa bXVIVp4utanOULBZMaWMgQ4yNuI98gkydynXO+ophnStE0TZUPzRcF+Qx+jResSUnJYO JuHt6hJEndxU8BdBCkEovY015iZokgVDIv5sF2Dta0e9vVSBGuOSWuE/H48fv/L3NQPD /A7w== X-Gm-Message-State: AFqh2kqAPwu/AYpoc2MiLZg+W49emQXQJ7l5KrCAGLd+ssbns5YwVKJn tTMCPKL6P8LaLFrnYdE+hdINohQJHlsD X-Google-Smtp-Source: AMrXdXs1O1fjJcR30MwySho6lEMCVpl+i5Ji3yBimHJYNI3s7IvRm6tM9nux2BLY7FVot98H2Y7lwHEtFRNw X-Received: from irogers.svl.corp.google.com ([2620:15c:2d4:203:59e7:81ad:bc43:d9dc]) (user=irogers job=sendgmr) by 2002:a17:90b:1002:b0:226:9980:67f3 with SMTP id gm2-20020a17090b100200b00226998067f3mr156078pjb.1.1673296487423; Mon, 09 Jan 2023 12:34:47 -0800 (PST) Date: Mon, 9 Jan 2023 12:34:22 -0800 In-Reply-To: <20230109203424.1157561-1-irogers@google.com> Message-Id: <20230109203424.1157561-2-irogers@google.com> Mime-Version: 1.0 References: <20230109203424.1157561-1-irogers@google.com> X-Mailer: git-send-email 2.39.0.314.g84b9a713c41-goog Subject: [PATCH v1 1/3] tools build: Pass libbpf feature only if libbpf 1.0+ From: Ian Rogers To: Peter Zijlstra , Ingo Molnar , Arnaldo Carvalho de Melo , Mark Rutland , Alexander Shishkin , Jiri Olsa , Namhyung Kim , Andres Freund , Quentin Monnet , Roberto Sassu , Christy Lee , Andrii Nakryiko , Adrian Hunter , linux-kernel@vger.kernel.org, linux-perf-users@vger.kernel.org, bpf@vger.kernel.org Cc: Ian Rogers Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Transfer-Encoding: quoted-printable Content-Type: text/plain; charset="utf-8" libbpf 1.0 represented a cleanup and stabilization of APIs. Simplify development by only passing the feature test if libbpf 1.0 is installed. Signed-off-by: Ian Rogers --- tools/build/feature/test-libbpf.c | 4 ++++ 1 file changed, 4 insertions(+) diff --git a/tools/build/feature/test-libbpf.c b/tools/build/feature/test-l= ibbpf.c index a508756cf4cc..cd9989f52119 100644 --- a/tools/build/feature/test-libbpf.c +++ b/tools/build/feature/test-libbpf.c @@ -1,6 +1,10 @@ // SPDX-License-Identifier: GPL-2.0 #include =20 +#if !defined(LIBBPF_MAJOR_VERSION) || (LIBBPF_MAJOR_VERSION < 1) +#error At least libbpf 1.0 is required for Linux tools. +#endif + int main(void) { return bpf_object__open("test") ? 0 : -1; --=20 2.39.0.314.g84b9a713c41-goog