From patchwork Wed Nov 4 19:10:51 2020 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Nick Desaulniers X-Patchwork-Id: 320564 Delivered-To: patch@linaro.org Received: by 2002:a92:7b12:0:0:0:0:0 with SMTP id w18csp5681919ilc; Wed, 4 Nov 2020 11:11:11 -0800 (PST) X-Google-Smtp-Source: ABdhPJzYNoH9Q05VHd/QL3IdGAr4/0QIHRZGo070TUzHCdKKAuiO5DRwG5jNZcvljjdJfAV0mk8m X-Received: by 2002:a05:6402:10c7:: with SMTP id p7mr28496679edu.34.1604517070976; Wed, 04 Nov 2020 11:11:10 -0800 (PST) ARC-Seal: i=1; a=rsa-sha256; t=1604517070; cv=none; d=google.com; s=arc-20160816; b=JzcOIaoAyChbUOVyfGFbbETA/OWJzau6ZY9VYtCxC4twJXM0ik0k1uVlc8hW7nR5I8 IzO9Dxffk0KmiXp98n7qM1xNHifSpHQJOUUbpgqtPaQ9uqYgFCseCfPyUcNugUKqPFh5 LrxBCX9VHxG+SpzbP9wFGlEH97v4KE/r411sW84XLllhYONMckq1DRXjYN9h3cZK10m7 1xV4A1YUlayi4+CHs82xk4wLIQmaPrLMAZc5IJL77iBJP17WEA+GKpCm76zfZ1hMB4yp BuYkgyQ6xN18lAiOx2cjMOJNOk6eJsp1w3z57uotpyp7dzG8j7M4KqO32/+CWYDI+zLt m7Og== ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=google.com; s=arc-20160816; h=list-id:precedence:cc:to:from:subject:mime-version:message-id:date :sender:dkim-signature; bh=gz5WtjKs0m8q7p+Y5q8+JmbEub8VEm+/kecg2iLZjKw=; b=toH5drS8zeByYsn9op6hRKwZHyZnhrhV2twlfseFIemaCvKuEuljMKnNteawuF37ge XhzTJRcQjSxnu3fiyg2J/shsONBUN2dq+mvfsi9nHgFvgCVQy9BGNnJUQr2Mc3Vb2E75 Sfks8ZPXMqYf7IzbAmExCscUZJeclkn2X6pGwwtAcw82xe3DLpyVVg2gNLhuM7U/33Pu 9Ejvk96Wu4hGTq/ZHeMQQ6ZlHn/CslSg9T3ayiVdsfk8WvCOFY+D3E7HO04Ahl1kb2Rp mws+c/2fp/AuwnrhJPx/GX1cOuFbJgoYhXWQJmt45/87ttjo60HOKMMYZjrY42Qp4zgk CMQQ== ARC-Authentication-Results: i=1; mx.google.com; dkim=pass header.i=@google.com header.s=20161025 header.b=EsW35Zmv; spf=pass (google.com: domain of netdev-owner@vger.kernel.org designates 23.128.96.18 as permitted sender) smtp.mailfrom=netdev-owner@vger.kernel.org; dmarc=pass (p=REJECT sp=REJECT dis=NONE) header.from=google.com Return-Path: Received: from vger.kernel.org (vger.kernel.org. [23.128.96.18]) by mx.google.com with ESMTP id bx24si2063888ejb.449.2020.11.04.11.11.10; Wed, 04 Nov 2020 11:11:10 -0800 (PST) Received-SPF: pass (google.com: domain of netdev-owner@vger.kernel.org designates 23.128.96.18 as permitted sender) client-ip=23.128.96.18; Authentication-Results: mx.google.com; dkim=pass header.i=@google.com header.s=20161025 header.b=EsW35Zmv; spf=pass (google.com: domain of netdev-owner@vger.kernel.org designates 23.128.96.18 as permitted sender) smtp.mailfrom=netdev-owner@vger.kernel.org; dmarc=pass (p=REJECT sp=REJECT dis=NONE) header.from=google.com Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1730064AbgKDTLG (ORCPT + 8 others); Wed, 4 Nov 2020 14:11:06 -0500 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:33566 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1725946AbgKDTLG (ORCPT ); Wed, 4 Nov 2020 14:11:06 -0500 Received: from mail-qk1-x749.google.com (mail-qk1-x749.google.com [IPv6:2607:f8b0:4864:20::749]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 12C60C061A4A for ; Wed, 4 Nov 2020 11:11:06 -0800 (PST) Received: by mail-qk1-x749.google.com with SMTP id k12so14039446qkj.18 for ; Wed, 04 Nov 2020 11:11:05 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=google.com; s=20161025; h=sender:date:message-id:mime-version:subject:from:to:cc; bh=gz5WtjKs0m8q7p+Y5q8+JmbEub8VEm+/kecg2iLZjKw=; b=EsW35ZmvLxRuca8q/4WsVMEXKOOcWAI+IZtfjnfqqDE4U4MLjllfGtcsMOf4vN1Z8F sCDuQYQEGKAAeuniI68VVBPH4nGP99IJnTLhSX8rCzF1/vTz5aFgVXtY/OTaKF9CaZZK Djz3ylgLOzL+Te9i20ZCxN0a096laVkVdb9RlfnsMFhgABTgsPy5ACgXS8UnDCk+B1Fh /tfTApWfYkT48/bsDcNN3nWUHgRPr209KCLuurjnhcWL82jbdStOWkq85NMu5BUK3kLB /egvdyqSkn/Q2MdaOelejjP9c+CBEPCgZTz1nL8WqgWfafgybvvUR49Cu/qeaCAsnLB+ lTCA== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:sender:date:message-id:mime-version:subject:from :to:cc; bh=gz5WtjKs0m8q7p+Y5q8+JmbEub8VEm+/kecg2iLZjKw=; b=uhpn3u/O999Xi6+KHoazqaxy5bzUVDv1DKX7LDWAh73Xc5bf2pY387F/FftCz46N6b rZwCCam63xnnXFjwWP3W0RscysD6hyY54uOOXkZ8icTfqAYXONN6enJMBvuSe0e96Z3B rRuP6s4mv72v30s46Eye5cqqlM7luyndJ42s+ITLhV7o9hqFPwQo8n4+7D51ho/p3IAA UBy3i+jG+21iaVil7k+ibcKYmm0GiXIaoQdwD8aebXg01xULlWbY1/15T7YhG/S6rN6K zMELYnCBUoD+FCRzDi1MXSQUGa4aaY+adLdYjSE8NMpYiJjUxUdFOJhnKLU7IZuAF3Uf 7WdQ== X-Gm-Message-State: AOAM53158g8KK1S7EVw2NtxSShnvLeWnsS7soi787ydmP503w0q6ozwW ZYwgXYe2+SXR9TuBP8k0NyTLAUbrKWmU6Iwtg2w= Sender: "ndesaulniers via sendgmr" X-Received: from ndesaulniers1.mtv.corp.google.com ([2620:15c:211:202:f693:9fff:fef4:4d25]) (user=ndesaulniers job=sendgmr) by 2002:a05:6214:186b:: with SMTP id eh11mr33319123qvb.49.1604517064979; Wed, 04 Nov 2020 11:11:04 -0800 (PST) Date: Wed, 4 Nov 2020 11:10:51 -0800 Message-Id: <20201104191052.390657-1-ndesaulniers@google.com> Mime-Version: 1.0 X-Mailer: git-send-email 2.29.1.341.ge80a0c044ae-goog Subject: [PATCH] compiler-clang: remove version check for BPF Tracing From: Nick Desaulniers To: Andrew Morton Cc: Nick Desaulniers , stable@vger.kernel.org, Chen Yu , Jarkko Sakkinen , Alexei Starovoitov , Daniel Borkmann , Martin KaFai Lau , Song Liu , Yonghong Song , Andrii Nakryiko , John Fastabend , KP Singh , Nathan Chancellor , Miguel Ojeda , Kees Cook , Marco Elver , Arvind Sankar , Randy Dunlap , Sami Tolvanen , Ingo Molnar , linux-kernel@vger.kernel.org, netdev@vger.kernel.org, bpf@vger.kernel.org, clang-built-linux@googlegroups.com Precedence: bulk List-ID: X-Mailing-List: netdev@vger.kernel.org bpftrace parses the kernel headers and uses Clang under the hood. Remove the version check when __BPF_TRACING__ is defined (as bpftrace does) so that this tool can continue to parse kernel headers, even with older clang sources. Cc: Fixes: commit 1f7a44f63e6c ("compiler-clang: add build check for clang 10.0.1") Reported-by: Chen Yu Reported-by: Jarkko Sakkinen Signed-off-by: Nick Desaulniers --- include/linux/compiler-clang.h | 2 ++ 1 file changed, 2 insertions(+) -- 2.29.1.341.ge80a0c044ae-goog Acked-by: Song Liu Acked-by: Miguel Ojeda diff --git a/include/linux/compiler-clang.h b/include/linux/compiler-clang.h index dd7233c48bf3..98cff1b4b088 100644 --- a/include/linux/compiler-clang.h +++ b/include/linux/compiler-clang.h @@ -8,8 +8,10 @@ + __clang_patchlevel__) #if CLANG_VERSION < 100001 +#ifndef __BPF_TRACING__ # error Sorry, your version of Clang is too old - please use 10.0.1 or newer. #endif +#endif /* Compiler specific definitions for Clang compiler */