From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: <ranjit.menon@intel.com> Received: from mga17.intel.com (mga17.intel.com [192.55.52.151]) by dpdk.org (Postfix) with ESMTP id A7F611B39E; Wed, 30 Jan 2019 17:32:33 +0100 (CET) X-Amp-Result: SKIPPED(no attachment in message) X-Amp-File-Uploaded: False Received: from fmsmga006.fm.intel.com ([10.253.24.20]) by fmsmga107.fm.intel.com with ESMTP/TLS/DHE-RSA-AES256-GCM-SHA384; 30 Jan 2019 08:32:32 -0800 X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="5.56,541,1539673200"; d="scan'208";a="314911362" Received: from orsmsx104.amr.corp.intel.com ([10.22.225.131]) by fmsmga006.fm.intel.com with ESMTP; 30 Jan 2019 08:32:32 -0800 Received: from orsmsx110.amr.corp.intel.com ([169.254.10.158]) by ORSMSX104.amr.corp.intel.com ([169.254.4.11]) with mapi id 14.03.0415.000; Wed, 30 Jan 2019 08:32:31 -0800 From: "Menon, Ranjit" <ranjit.menon@intel.com> To: Thomas Monjalon <thomas@monjalon.net>, 'Jason Messer' <jmesser@microsoft.com>, 'Harini Ramakrishnan' <harini.ramakrishnan@microsoft.com>, 'Omar Cardona' <ocardona@microsoft.com> CC: "dev@dpdk.org" <dev@dpdk.org>, "Burakov, Anatoly" <anatoly.burakov@intel.com>, "Richardson, Bruce" <bruce.richardson@intel.com>, Stephen Hemminger <stephen@networkplumber.org>, =?iso-8859-1?Q?=27Mattias_R=F6nnblom=27?= <mattias.ronnblom@ericsson.com>, "Shaw, Jeffrey B" <jeffrey.b.shaw@intel.com>, "techboard@dpdk.org" <techboard@dpdk.org> Thread-Topic: [dpdk-dev] Compiler for Windows Thread-Index: AQHUouzwJGe3Uh77QkCuhJc2h6N7zqWdnJ2AgAaTD4CAAFJVAIAABrKAgAAD3YCAAAYmgIAAAoAAgAACQwCAASFxgIAi1YUA//+b9wA= Date: Wed, 30 Jan 2019 16:32:31 +0000 Message-ID: <7603DC8746F9FC4D82EF0929C467267A72BF89A7@ORSMSX110.amr.corp.intel.com> References: <7824863.MkUOD0j12R@xps> <24170945.hIekyy4cRm@xps> <0922dbbe-4d58-3bbb-b84e-1df70d504b76@intel.com> <1697453.3RAGQi5EJb@xps> In-Reply-To: <1697453.3RAGQi5EJb@xps> Accept-Language: en-US Content-Language: en-US X-MS-Has-Attach: X-MS-TNEF-Correlator: x-titus-metadata-40: eyJDYXRlZ29yeUxhYmVscyI6IiIsIk1ldGFkYXRhIjp7Im5zIjoiaHR0cDpcL1wvd3d3LnRpdHVzLmNvbVwvbnNcL0ludGVsMyIsImlkIjoiYmJjMWI1MTYtZjNkZi00NTEyLWIxYWQtZDhhMGZjYWI5NTMxIiwicHJvcHMiOlt7Im4iOiJDVFBDbGFzc2lmaWNhdGlvbiIsInZhbHMiOlt7InZhbHVlIjoiQ1RQX05UIn1dfV19LCJTdWJqZWN0TGFiZWxzIjpbXSwiVE1DVmVyc2lvbiI6IjE3LjEwLjE4MDQuNDkiLCJUcnVzdGVkTGFiZWxIYXNoIjoiNWFZcHN2M09cL2k1ek5zdDYwZXBRcFBNcW1rcXYwcXN1QXUwOXd3a2lnRXlcL3lxTG9UdlJEOENOT1dkNWt2SnlIIn0= x-ctpclassification: CTP_NT dlp-product: dlpe-windows dlp-version: 11.0.400.15 dlp-reaction: no-action x-originating-ip: [10.22.254.138] Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable MIME-Version: 1.0 Subject: Re: [dpdk-dev] Compiler for Windows X-BeenThere: dev@dpdk.org X-Mailman-Version: 2.1.15 Precedence: list List-Id: DPDK patches and discussions <dev.dpdk.org> List-Unsubscribe: <https://mails.dpdk.org/options/dev>, <mailto:dev-request@dpdk.org?subject=unsubscribe> List-Archive: <http://mails.dpdk.org/archives/dev/> List-Post: <mailto:dev@dpdk.org> List-Help: <mailto:dev-request@dpdk.org?subject=help> List-Subscribe: <https://mails.dpdk.org/listinfo/dev>, <mailto:dev-request@dpdk.org?subject=subscribe> X-List-Received-Date: Wed, 30 Jan 2019 16:32:34 -0000 Thank you for the direction, Thomas and Tech Board members. If clang-win64 has support for GCC extensions (__attribute(constructor/alig= n/etc...)), then the changes to common DPDK code should be minimal. Also, J= eff got meson to output VS project files to compile with MSVC - we'll just = need to make sure that they can compile with clang-win64. Thanks, Bruce for= helping us out here. ranjit m. -----Original Message----- From: Thomas Monjalon <thomas@monjalon.net>=20 Sent: Wednesday, January 30, 2019 6:21 AM To: 'Jason Messer' <jmesser@microsoft.com>; 'Harini Ramakrishnan' <harini.r= amakrishnan@microsoft.com>; 'Omar Cardona' <ocardona@microsoft.com>; Menon,= Ranjit <ranjit.menon@intel.com> Cc: dev@dpdk.org; Burakov, Anatoly <anatoly.burakov@intel.com>; Richardson,= Bruce <bruce.richardson@intel.com>; Stephen Hemminger <stephen@networkplum= ber.org>; 'Mattias R=F6nnblom' <mattias.ronnblom@ericsson.com>; Shaw, Jeffr= ey B <jeffrey.b.shaw@intel.com>; techboard@dpdk.org Subject: Re: [dpdk-dev] Compiler for Windows 08/01/2019 11:24, Burakov, Anatoly: > On 07-Jan-19 5:08 PM, Thomas Monjalon wrote: > > 07/01/2019 18:00, Bruce Richardson: > >> I think for windows we probably want to start with the MS compiler=20 > >> first, since from my understanding it's probably the default go-to=20 > >> compiler for developers on windows, and look at alternatives from ther= e. > >=20 > > Not sure. I feel clang is a better option. > > This is the purpose of this thread: which compiler can work with the=20 > > DPDK code base? Which modifications of code are acceptable? > >=20 > > Unfortunately we lost my original attempt of getting some facts. >=20 > i'm developing on a Windows machine, and use clang as code analyzer.=20 > so while the compiling and linking may take some effort, the bulk of=20 > it appears to be working without too much complaints from clang. it's=20 > easy to install as well - just install LLVM and you're good to go. This discussion continued in a private thread (for no good reason). Let's conclude here publicly. About the compiler, - cygwin is not native -> no go - mingw-w64 (latest) brings a specific DLL -> one more unknown piece - icc is not free -> no go - msvc supports not all C99 and GNU extensions -> difficult to support - clang is now native on Windows -> best choice http://releases.llvm.org/7.0.1/LLVM-7.0.1-win64.exe About the build system, - DPDK makefiles are not Windows-friendly and will be removed - meson is supported on Windows and can generate VS project https://github.com/mesonbuild/meson/releases/download/0.49.1/meson-0.49.= 1-64.msi About the Linux/BSD code, - we can use some #ifdef - most of the specific code should be in EAL - it must be tried to share a maximum of common code About the steps, 1/ meson files must be prepared for Windows target 2/ EAL for Windows must be an empty stub first 3/ The core libraries must compile with meson+clang 4/ Documentation for Windows must be started 5/ EAL for Windows can be completed with real code 6/ PMDs can be tested on Windows 7/ Examples should compile on Windows Please restart from a fresh 19.02 branch in the draft repository and submit= the steps one by one on the mailing list. We need to validate the steps and approve the choices. If some choices are done, they must be explained in the commit logs. The commits must be small enough to be reviewed. If some issues are encountered, we'll fix them as a community. Thanks for facilitating community adoption of Windows port.