From patchwork Mon Jan 9 20:34:22 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Ian Rogers X-Patchwork-Id: 13094244 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 vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id 3E0C8C5479D for ; Mon, 9 Jan 2023 20:34:51 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S235359AbjAIUet (ORCPT ); Mon, 9 Jan 2023 15:34:49 -0500 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:48832 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S233794AbjAIUet (ORCPT ); Mon, 9 Jan 2023 15:34:49 -0500 Received: from mail-pj1-x104a.google.com (mail-pj1-x104a.google.com [IPv6:2607:f8b0:4864:20::104a]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 4A1CF2AD3 for ; Mon, 9 Jan 2023 12:34:48 -0800 (PST) Received: by mail-pj1-x104a.google.com with SMTP id c2-20020a17090a8d0200b002269fb8d787so7863878pjo.0 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=QLn7M/8S6ArCP+OZZ7nAQgJOfgsB4FrjkO0f+fm5GEjm9OVmyz9uHhmNfWlyB42dQc IopfdGeVx5I9UX+TtqO0Ys0lrJsZjbASWnz5hvwP3WYiV/oicjxPeNCh23jh8axgjHgS 7ZTaR59TD37C75G11tBSqqwA+ZAH0R9Z7jJ2Fqtcs2ks6o6VaXF4wMLKr1CZAtx3i+9v JybUTPxhV72BQ2vhTrlN1eam/bVgt0X9aHsxUzjq9kh8CoOGQIAIoUVL26MGZaNdE+im lp5KLk5ORDvLMlqTg8/LA55YqelPGyavjtTqmIk9X7kYVTGMaVFh5TaqhPV17p+cu+SZ 5Qwg== X-Gm-Message-State: AFqh2kpd0OyjL5l9q/g//vETM5a120Y7ZBOlSpcqlzakARVrOONW1ied Ntkqjx6760kV/1qCYF0/kLJA46MqFkPs 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: bpf@vger.kernel.org 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-libbpf.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 +#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;