From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mails.dpdk.org (mails.dpdk.org [217.70.189.124]) by inbox.dpdk.org (Postfix) with ESMTP id 133BFA0A03; Mon, 18 Jan 2021 12:58:47 +0100 (CET) Received: from [217.70.189.124] (localhost [127.0.0.1]) by mails.dpdk.org (Postfix) with ESMTP id CA514140E5E; Mon, 18 Jan 2021 12:58:46 +0100 (CET) Received: from mga04.intel.com (mga04.intel.com [192.55.52.120]) by mails.dpdk.org (Postfix) with ESMTP id 46E77140E52 for ; Mon, 18 Jan 2021 12:58:45 +0100 (CET) IronPort-SDR: AqB4lYMX2xVF0jERS01OYczNkx9NNgqdR0KmxiN/4k2GrgJg7LEo/EZTj0MU1HMqNZJYhn3pBo w2/TtF4SOrDg== X-IronPort-AV: E=McAfee;i="6000,8403,9867"; a="176221204" X-IronPort-AV: E=Sophos;i="5.79,356,1602572400"; d="scan'208";a="176221204" Received: from orsmga008.jf.intel.com ([10.7.209.65]) by fmsmga104.fm.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 18 Jan 2021 03:58:43 -0800 IronPort-SDR: wcgpeX/tXiWJF3fdcKdiEiq20WOns0u92Fp+CNNsq/YVa9VzGRBhgaUa6O3Zv73j5swxusZ368 FrB9nZIAB9Ag== X-IronPort-AV: E=Sophos;i="5.79,356,1602572400"; d="scan'208";a="383544121" Received: from fyigit-mobl1.ger.corp.intel.com (HELO [10.213.241.24]) ([10.213.241.24]) by orsmga008-auth.jf.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 18 Jan 2021 03:58:41 -0800 To: Bruce Richardson Cc: Hemant Agrawal , Akhil Goyal , "dev@dpdk.org" , David Marchand References: <20201221140402.GB1753@bricha3-MOBL.ger.corp.intel.com> <20210118105113.GA749@bricha3-MOBL.ger.corp.intel.com> From: Ferruh Yigit Message-ID: Date: Mon, 18 Jan 2021 11:58:40 +0000 MIME-Version: 1.0 In-Reply-To: <20210118105113.GA749@bricha3-MOBL.ger.corp.intel.com> Content-Type: text/plain; charset=utf-8; format=flowed Content-Language: en-US Content-Transfer-Encoding: 8bit Subject: Re: [dpdk-dev] meson: wrong dependency in cross compilation on ARM X-BeenThere: dev@dpdk.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: DPDK patches and discussions List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: dev-bounces@dpdk.org Sender: "dev" On 1/18/2021 10:51 AM, Bruce Richardson wrote: > On Fri, Jan 15, 2021 at 06:40:56PM +0000, Ferruh Yigit wrote: >> On 12/21/2020 2:04 PM, Bruce Richardson wrote: >>> On Mon, Dec 21, 2020 at 12:19:17PM +0000, Hemant Agrawal wrote: >>>> Hi, >>>> I am trying to cross compile DPDK for arm64 on a ubuntu machine, which has a zlib pre-installed for native env. >>>> >>>> I am encountering following build error in net_bnx2x as it has dependency on zlib. It is trying to link with x86 arch based zlib. >>>> >>>> Cross compiling zlib and setting the PKG_CONFIG_PATH solve the issue. But, Is their an easy way to disable these dependencies? >>>> >>> Can you try with setting PKG_CONFIG_LIBDIR rather than PKG_CONFIG_PATH? >>> PKG_CONFIG_PATH simply extends the search locations, which means that >>> host-paths will still be searched, while PKG_CONFIG_LIBDIR replaces the >>> default path, eliminating the host-based search paths. >>> >> >> The 'PKG_CONFIG_LIBDIR' seems not taken into account by meson, Akhil >> reported a 32bit build error when zlib is missing, I can reproduce the same. >> >> I have only 64bit version of the library: >> >> $ pkg-config --path zlib >> /usr/lib64/pkgconfig/zlib.pc >> >> $ PKG_CONFIG_LIBDIR=/usr/lib/pkgconfig/ pkg-config --path zlib >> >> $ echo $? >> 1 >> >> When I run the meson as following: >> "PKG_CONFIG_LIBDIR=/usr/lib/pkgconfig/ meson --werror -Dc_args=-m32 >> -Dc_link_args=-m32 -Dexamples=all build32" >> >> It still detects the zlib: >> Run-time dependency zlib found: YES 1.2.11 >> > > I've just tried this on my system and it works as expected: the 32-bit lib > is not found and a build succeeds. Omitting the PKG_CONFIG_LIBDIR and it is > found, but linking fails due to "file in wrong format" errors, again as > expected. > > In your case, I suspect it might be meson falling back to cmake in the > detection logic. If you have cmake installed on your system, can you > perhaps temporarily remove it, and retry the 32-bit build? If that is the > cause, we can modify the dependency call to add "method: 'pkg-config'" to > it, to force pkg-config searches only. > Yes I have cmake, I will try without it. Meanwhile I have Fedora, and it seems it is using different version of the pkg-config (pkgconf), not sure if this can be a problem.