On 11/24/2015 05:30 PM, Martinx - ????? wrote: > On 24 November 2015 at 13:22, Panu Matilainen <pmatilai at redhat.com> wrote: >> 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 - ????? 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 time: >>>>> >>>>> 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 work as >> time permits. >> >> - Panu - >> > > Cool! Thank you guys for this fast reply... > > Just a curiosity, do you guys think that this will be ready for 2.2? > Or maybe just for 2.3? > > I'm hoping to use this for next Ubuntu release, Xenial on 2016, April > (Ubuntu 16.04 LTS). > > So, I think that there is time, if not too much trouble for you guys > (honestly, I don't know how hard is to fix that)... :-)
Feel free to try this out: http://dpdk.org/dev/patchwork/patch/9088/ Whether it lands in time for 2.2 I dont know. However there's absolutely no need to be held hostage by that patch, you can just disable the combined library build option and drop a linker script in its place, created by hand or with couple of lines of shell script, eg: http://pkgs.fedoraproject.org/cgit/dpdk.git/tree/dpdk.spec#n234 - Panu -
