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=-16.6 required=3.0 tests=DKIMWL_WL_MED,DKIM_SIGNED, DKIM_VALID,DKIM_VALID_AU,HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_PATCH, MAILING_LIST_MULTI,SIGNED_OFF_BY,SPF_PASS,USER_AGENT_GIT,USER_IN_DEF_DKIM_WL autolearn=ham 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 76DE5C282C0 for ; Wed, 23 Jan 2019 17:24:40 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 463F6217D4 for ; Wed, 23 Jan 2019 17:24:40 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (2048-bit key) header.d=google.com header.i=@google.com header.b="HioNa6vM" Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1726343AbfAWRYj (ORCPT ); Wed, 23 Jan 2019 12:24:39 -0500 Received: from mail-pl1-f201.google.com ([209.85.214.201]:39413 "EHLO mail-pl1-f201.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1726299AbfAWRYj (ORCPT ); Wed, 23 Jan 2019 12:24:39 -0500 Received: by mail-pl1-f201.google.com with SMTP id v2so1895488plg.6 for ; Wed, 23 Jan 2019 09:24:38 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=google.com; s=20161025; h=date:message-id:mime-version:subject:from:to:cc; bh=LrEjOfRBZQkk2vcKyboo3g1KO7oV2qhCbQtEPXodqlU=; b=HioNa6vM+Yq1NO4N8dEYMmpAZrgKfVxRlSiCG8jLGbLDioB5gmTb1x6H2IGDNnM8qR Vw4cMKG6fDBv6pZfzORtFHASRlT6Jctf4fc0vwQuwaK+z5TALDF63roTk6tqQu0A9VHU wH/yolNCKPSXY/dl1E0MvgccqiboHeP1oZ/0ELR62MFKfX2FbRqT9vlVqI1hEgQR6YD1 XpHkZACAcs/zUp4pToGFh+DmP3qe567jpooj5Eo4LiV6FWIjIbv9xy/5n1KWj2rf0Xa8 sUvBhtkIX8aH3+h9ckrrYVDHKkG6WbhkCmxtFPaWAN7BuzRuPJ50Jqxlb3GBLb9NGoKf LoRg== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:date:message-id:mime-version:subject:from:to:cc; bh=LrEjOfRBZQkk2vcKyboo3g1KO7oV2qhCbQtEPXodqlU=; b=ZeP6AfS+EQhOs/m5qynq3IioZ1TG90zC8lY2V76/NMp8APyMC71933GO4CNT6rQ9RW eRuTnGyHSM7e4N6ATm7Af0/52x0QPybRuP+6kRdv49KMuyWOfYEXso5b6ZmnIsfZcEsw pnFmhugoQbW0VXGr4dUHS85R4kFa+OzPMrJNlYQb9Xt7YYNEI9hVz3HyhbesNDQU4hU5 Xzy2RihbE9ljfHxLDiUw+mKlVvlVbMYKMsuezkzd+nMoXOqlvBCQleQDRYH11zcAr/6g ebEuFJBvaCiOnDWEJJXDYx7By2VwOeRvVyEvo/rlhMeeJxoidaJqWr7eiimbvatJQDco 5/xg== X-Gm-Message-State: AJcUukefpTJC17kDysD5+9idAAtGFB2z/6lzMnZYK/2hNUpuRJx9Dr5G Ncewnxr1cpLpBfj5FXrvtf+RlzYkbII0GTOO+Fr61xciDunq3pitm3cMFodfAGxH2Ya1yxEqGIh GOKnFE8B2hxVSN8wo/CCspB94Y8VIRl4yXnwb09qPnKXCpCFpkfFuFQ== X-Google-Smtp-Source: ALg8bN5xYo0Q5WyN0ZWb9pZMy1YSlcf408yWio2cXelvcPBr3EaJEQkKg0oZm9aP53vmdNx5AbbJo4c= X-Received: by 2002:a62:6f49:: with SMTP id k70mr996646pfc.136.1548264278280; Wed, 23 Jan 2019 09:24:38 -0800 (PST) Date: Wed, 23 Jan 2019 09:24:35 -0800 Message-Id: <20190123172435.197862-1-sdf@google.com> Mime-Version: 1.0 X-Mailer: git-send-email 2.20.1.321.g9e740568ce-goog Subject: [PATCH bpf-next] selftests/bpf: suppress readelf stderr when probing for BTF support From: Stanislav Fomichev To: netdev@vger.kernel.org Cc: davem@davemloft.net, ast@kernel.org, daniel@iogearbox.net, Stanislav Fomichev Content-Type: text/plain; charset="UTF-8" Sender: netdev-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: netdev@vger.kernel.org Before: $ make -s -C tools/testing/selftests/bpf readelf: Error: Missing knowledge of 32-bit reloc types used in DWARF sections of machine number 247 readelf: Warning: unable to apply unsupported reloc type 10 to section .debug_info readelf: Warning: unable to apply unsupported reloc type 1 to section .debug_info readelf: Warning: unable to apply unsupported reloc type 10 to section .debug_info After: $ make -s -C tools/testing/selftests/bpf Signed-off-by: Stanislav Fomichev --- tools/testing/selftests/bpf/Makefile | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/tools/testing/selftests/bpf/Makefile b/tools/testing/selftests/bpf/Makefile index 70229de510f5..ff3cab5525c1 100644 --- a/tools/testing/selftests/bpf/Makefile +++ b/tools/testing/selftests/bpf/Makefile @@ -131,7 +131,7 @@ BTF_PAHOLE_PROBE := $(shell $(BTF_PAHOLE) --help 2>&1 | grep BTF) BTF_OBJCOPY_PROBE := $(shell $(LLVM_OBJCOPY) --help 2>&1 | grep -i 'usage.*llvm') BTF_LLVM_PROBE := $(shell echo "int main() { return 0; }" | \ $(CLANG) -target bpf -O2 -g -c -x c - -o ./llvm_btf_verify.o; \ - readelf -S ./llvm_btf_verify.o | grep BTF; \ + readelf -S ./llvm_btf_verify.o 2>/dev/null | grep BTF; \ /bin/rm -f ./llvm_btf_verify.o) ifneq ($(BTF_LLVM_PROBE),) -- 2.20.1.321.g9e740568ce-goog