From mboxrd@z Thu Jan 1 00:00:00 1970 From: Panu Matilainen Subject: Re: Can't compile DPDK if both CONFIG_RTE_BUILD_COMBINE_LIBS and LIBRTE_PMD_XENVIRT are set to "yes" Date: Tue, 24 Nov 2015 17:22:37 +0200 Message-ID: <565480BD.7060305@redhat.com> References: <56546CAE.8050401@redhat.com> <56547837.5080803@intel.com> Mime-Version: 1.0 Content-Type: text/plain; charset=utf-8; format=flowed Content-Transfer-Encoding: quoted-printable Cc: dev@dpdk.org To: Sergio Gonzalez Monroy Return-path: Received: from mx1.redhat.com (mx1.redhat.com [209.132.183.28]) by dpdk.org (Postfix) with ESMTP id 34C275958 for ; Tue, 24 Nov 2015 16:22:40 +0100 (CET) In-Reply-To: <56547837.5080803@intel.com> List-Id: patches and discussions about DPDK List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: dev-bounces@dpdk.org Sender: "dev" On 11/24/2015 04:46 PM, Sergio Gonzalez Monroy wrote: > On 24/11/2015 13:57, Panu Matilainen wrote: >> On 11/23/2015 08:37 PM, Martinx - =E3=82=B8=E3=82=A7=E3=83=BC=E3=83=A0= =E3=82=BA wrote: >>> Hello! >>> >>> My name is Thiago, I'm trying to compile DPDK 2.0, 2.1 and/or 2.2-rc1= , >>> on Ubuntu with Xen support but, it does not build... >>> >>> Also, initially, I'm using DPDK sources from Ubuntu APT repository >>> but, it is also reproducible using upstream DPDK tarball as well, >>> explained as follows: >>> >>> Problem: >>> >>> * It is not possible to use the following DPDK options at the same ti= me: >>> >>> CONFIG_RTE_BUILD_COMBINE_LIBS >>> LIBRTE_PMD_XENVIRT >>> >>> Ubuntu DPDK .deb package uses CONFIG_RTE_BUILD_COMBINE_LIBS and, >>> without it, it can't build its .deb binary package (step: "make -f >>> debian/rules binary" doesn't work). >>> >>> So, if you have the above two options set to "yes", the following >>> error appear while building DPDK: >>> >>> http://pastebin.com/xUsQPxh8 >>> >> [...] >>> Build error: >>> >>> http://pastebin.com/fuUkpF4w >>> >>> If you remove "CONFIG_RTE_BUILD_COMBINE_LIBS", then, you can build it >>> with "LIBRTE_PMD_XENVIRT", and vice-versa. But, without >>> "...COMBINE_LIBS", Ubuntu .deb package doesn't get builded. >>> >>> BTW, the option LIBRTE_XEN_DOM0 is fine when also enabling >>> COMBINE_LIBS... >>> >>> Am I missing something? Is this by design or a DPDK bug? >> >> DPDK bug I would say. The combined library has been increasingly in >> risk of collapsing under its own weight for some time now. >> >> A much better way of achieving the same is using a so called linker >> script which is essentially just an ascii file listing all the >> individual libraries which the linker handles behind the scenes. >> FWIW, that's how the combined library is packaged on Fedora and RHEL >> and consumers like OVS and pktgen never knew the difference. >> >> The linker script approach has been suggested before but somehow the >> threads died without nothing actually happening. I'll revive the patch >> and post here shortly. Unless Sergio (cc'd) who previously worked on >> the patches has a newer version cooking silently? >> > I haven't worked on it since, so you probably are in a better position > to continue the work than me. Ok, I suspected as much but thanks for confirming. I'll continue the=20 work as time permits. - Panu -