From patchwork Thu May 2 15:56:50 2019 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Vineet Gupta X-Patchwork-Id: 1094419 X-Patchwork-Delegate: bpf@iogearbox.net Return-Path: X-Original-To: incoming-bpf@patchwork.ozlabs.org Delivered-To: patchwork-incoming-bpf@bilbo.ozlabs.org Authentication-Results: ozlabs.org; spf=none (mailfrom) smtp.mailfrom=vger.kernel.org (client-ip=209.132.180.67; helo=vger.kernel.org; envelope-from=bpf-owner@vger.kernel.org; receiver=) Authentication-Results: ozlabs.org; dmarc=pass (p=none dis=none) header.from=synopsys.com Authentication-Results: ozlabs.org; dkim=pass (2048-bit key; unprotected) header.d=synopsys.com header.i=@synopsys.com header.b="Y9N0v0jb"; dkim-atps=neutral Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by ozlabs.org (Postfix) with ESMTP id 44w0JN4HrYz9s3l for ; Fri, 3 May 2019 01:57:08 +1000 (AEST) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1726283AbfEBP5H (ORCPT ); Thu, 2 May 2019 11:57:07 -0400 Received: from smtprelay-out1.synopsys.com ([198.182.61.142]:39146 "EHLO smtprelay-out1.synopsys.com" rhost-flags-OK-FAIL-OK-FAIL) by vger.kernel.org with ESMTP id S1726282AbfEBP5H (ORCPT ); Thu, 2 May 2019 11:57:07 -0400 Received: from mailhost.synopsys.com (dc8-mailhost1.synopsys.com [10.13.135.209]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits)) (No client certificate requested) by smtprelay-out1.synopsys.com (Postfix) with ESMTPS id 323CBC020C; Thu, 2 May 2019 15:57:03 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=synopsys.com; s=mail; t=1556812623; bh=RBOX3eQrC5rsRBXO9Yo4WNgviqeI5NSvve/zb+XLVxc=; h=From:To:CC:Subject:Date:In-Reply-To:References:From; b=Y9N0v0jbsVcHuNWEyS1eF82Jf4TrB1GjTxL4ay82AZzmkjfu9VriSg14I27lP0YdC fQEqLS2NlVx9dDvL4mFiu+c+/9kpgO72N6F/2v+ZtNs4AW0Xg84LLUq4P/MCC9N1DV rqsN7sYzVG0fDGI36mF3d6qChyQ4AfjURSYmMLyy5kj1/6Elmzy1g4MsrAQo1nZrHE AHslJ8cnBPiJjPWui/RyUJz/RDflxwpyS6i8MUfjgSg9svZpoTp/CvDojnVgBFMWxQ tuIE91wmOvITeiZo35AtcBJ/860RMj8IrTtpt6awXJ4Mz6XjwdhPq31e6lCA2cJseX NfdwXAyzG/1Zw== Received: from US01WEHTC2.internal.synopsys.com (us01wehtc2.internal.synopsys.com [10.12.239.237]) (using TLSv1.2 with cipher AES128-SHA256 (128/128 bits)) (No client certificate requested) by mailhost.synopsys.com (Postfix) with ESMTPS id BEF7BA005D; Thu, 2 May 2019 15:57:04 +0000 (UTC) Received: from IN01WEHTCB.internal.synopsys.com (10.144.199.106) by US01WEHTC2.internal.synopsys.com (10.12.239.237) with Microsoft SMTP Server (TLS) id 14.3.408.0; Thu, 2 May 2019 08:57:04 -0700 Received: from IN01WEHTCA.internal.synopsys.com (10.144.199.103) by IN01WEHTCB.internal.synopsys.com (10.144.199.105) with Microsoft SMTP Server (TLS) id 14.3.408.0; Thu, 2 May 2019 21:27:12 +0530 Received: from vineetg-Latitude-E7450.internal.synopsys.com (10.10.161.89) by IN01WEHTCA.internal.synopsys.com (10.144.199.243) with Microsoft SMTP Server (TLS) id 14.3.408.0; Thu, 2 May 2019 21:27:12 +0530 From: Vineet Gupta To: Alexei Starovoitov , Daniel Borkmann CC: , Wang Nan , Song Liu , Yonghong Song , Martin KaFai Lau , , , , , , Y Song , Vineet Gupta Subject: [PATCH v2] tools/bpf: fix perf build error with uClibc (seen on ARC) Date: Thu, 2 May 2019 08:56:50 -0700 Message-ID: <1556812610-27957-1-git-send-email-vgupta@synopsys.com> X-Mailer: git-send-email 2.7.4 In-Reply-To: References: MIME-Version: 1.0 X-Originating-IP: [10.10.161.89] Sender: bpf-owner@vger.kernel.org Precedence: bulk List-Id: netdev.vger.kernel.org When build perf for ARC recently, there was a build failure due to lack of __NR_bpf. | Auto-detecting system features: | | ... get_cpuid: [ OFF ] | ... bpf: [ on ] | | # error __NR_bpf not defined. libbpf does not support your arch. ^~~~~ | bpf.c: In function 'sys_bpf': | bpf.c:66:17: error: '__NR_bpf' undeclared (first use in this function) | return syscall(__NR_bpf, cmd, attr, size); | ^~~~~~~~ | sys_bpf Signed-off-by: Vineet Gupta Acked-by: Yonghong Song --- v1 -> v2 - Only add syscall nr for ARC, as asm-generic won't work with arm/sh [Y Song] --- tools/lib/bpf/bpf.c | 2 ++ 1 file changed, 2 insertions(+) diff --git a/tools/lib/bpf/bpf.c b/tools/lib/bpf/bpf.c index 9cd015574e83..d82edadf7589 100644 --- a/tools/lib/bpf/bpf.c +++ b/tools/lib/bpf/bpf.c @@ -46,6 +46,8 @@ # define __NR_bpf 349 # elif defined(__s390__) # define __NR_bpf 351 +# elif defined(__arc__) +# define __NR_bpf 280 # else # error __NR_bpf not defined. libbpf does not support your arch. # endif