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=-10.1 required=3.0 tests=DKIMWL_WL_HIGH,DKIM_SIGNED, DKIM_VALID,DKIM_VALID_AU,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 99578C2BA83 for ; Fri, 14 Feb 2020 17:53:43 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 6BD6C20848 for ; Fri, 14 Feb 2020 17:53:43 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1581702823; bh=1xCCUDJRyOV29jDvyw2qulGXTvVC0OZvGv+a2Mz9d4o=; h=From:To:Cc:Subject:Date:In-Reply-To:References:List-ID:From; b=GDTawflJRmSzN+DUl0pGJj+pm7nFedmfUPVYJtL0NT0JKXbJ2k2RsEuDq0kBeDQqh iQlS9ZAJlaCgPFqgaWzSRSxqpQ++hQBYpuksuWaVa2H6CHoMKv0S0siQD7Ga0Wd1SA 13lng00yFENFULVuxthv5U0wvmVcu5Ln6yWCpbiU= Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S2388551AbgBNP6S (ORCPT ); Fri, 14 Feb 2020 10:58:18 -0500 Received: from mail.kernel.org ([198.145.29.99]:42020 "EHLO mail.kernel.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S2387905AbgBNP6Q (ORCPT ); Fri, 14 Feb 2020 10:58:16 -0500 Received: from sasha-vm.mshome.net (c-73-47-72-35.hsd1.nh.comcast.net [73.47.72.35]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-GCM-SHA256 (128/128 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPSA id 5697922314; Fri, 14 Feb 2020 15:58:15 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1581695896; bh=1xCCUDJRyOV29jDvyw2qulGXTvVC0OZvGv+a2Mz9d4o=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=M7QUz6EuMsCluA+o5M+c8CohyhWMERLUuBUHSK+R6s9xLPMdo0lBG3aHUfCr9XoPk tvfqFODvAbO3TRqQebyJsSpDIi446u71VTaPLK9fcMo7r5pgSl/kbcCrdIOcMM9ix7 kcfqEqEG4F358uF1eRMNnpe1V+brQiaqLUvyBzr4= From: Sasha Levin To: linux-kernel@vger.kernel.org, stable@vger.kernel.org Cc: Chris Down , Daniel Borkmann , Andrii Nakryiko , Sasha Levin , linux-kbuild@vger.kernel.org, netdev@vger.kernel.org, bpf@vger.kernel.org Subject: [PATCH AUTOSEL 5.5 438/542] bpf, btf: Always output invariant hit in pahole DWARF to BTF transform Date: Fri, 14 Feb 2020 10:47:10 -0500 Message-Id: <20200214154854.6746-438-sashal@kernel.org> X-Mailer: git-send-email 2.20.1 In-Reply-To: <20200214154854.6746-1-sashal@kernel.org> References: <20200214154854.6746-1-sashal@kernel.org> MIME-Version: 1.0 X-stable: review X-Patchwork-Hint: Ignore Content-Transfer-Encoding: 8bit Sender: netdev-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: netdev@vger.kernel.org From: Chris Down [ Upstream commit 2a67a6ccb01f21b854715d86ff6432a18b97adb3 ] When trying to compile with CONFIG_DEBUG_INFO_BTF enabled, I got this error: % make -s Failed to generate BTF for vmlinux Try to disable CONFIG_DEBUG_INFO_BTF make[3]: *** [vmlinux] Error 1 Compiling again without -s shows the true error (that pahole is missing), but since this is fatal, we should show the error unconditionally on stderr as well, not silence it using the `info` function. With this patch: % make -s BTF: .tmp_vmlinux.btf: pahole (pahole) is not available Failed to generate BTF for vmlinux Try to disable CONFIG_DEBUG_INFO_BTF make[3]: *** [vmlinux] Error 1 Signed-off-by: Chris Down Signed-off-by: Daniel Borkmann Acked-by: Andrii Nakryiko Link: https://lore.kernel.org/bpf/20200122000110.GA310073@chrisdown.name Signed-off-by: Sasha Levin --- scripts/link-vmlinux.sh | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/scripts/link-vmlinux.sh b/scripts/link-vmlinux.sh index 4363799403561..408b5c0b99b1b 100755 --- a/scripts/link-vmlinux.sh +++ b/scripts/link-vmlinux.sh @@ -108,13 +108,13 @@ gen_btf() local bin_arch if ! [ -x "$(command -v ${PAHOLE})" ]; then - info "BTF" "${1}: pahole (${PAHOLE}) is not available" + echo >&2 "BTF: ${1}: pahole (${PAHOLE}) is not available" return 1 fi pahole_ver=$(${PAHOLE} --version | sed -E 's/v([0-9]+)\.([0-9]+)/\1\2/') if [ "${pahole_ver}" -lt "113" ]; then - info "BTF" "${1}: pahole version $(${PAHOLE} --version) is too old, need at least v1.13" + echo >&2 "BTF: ${1}: pahole version $(${PAHOLE} --version) is too old, need at least v1.13" return 1 fi -- 2.20.1