Dear Philip, EJ, Thanks a lot for your replies. To keep things simple, I'm tying to manually cross-compile the Armadillo library. Unfortunately, there are a few dependencies that are not available on the default E310 image (OpenBLAS, LAPACK, ATLAS, SuperLU). We've made quite a few changes to the E310 FPGA, so I'm a bit frisky at re-installing UHD using pybombs... I'd rather just include the libraries and dependencies I need to my current UHD version. Anyway, with the clues you gave me I should be able to figure something out. Thanks! François On 26.10.2017 15:27, EJ Kreinar wrote: > Hi Francois,  > > I see Balister beat me to reply... I'm not a cross-compile expert, so > he probably has better recommendations, but I'll add a couple > thoughts. There's probably three feasible options: > > 1. Manual cross compile: Manually compile the project of interest, > sourcing the SDK environment and then building with cmake or whatever > the project's build system is (armadillo looks like cmake). This is a > decent introduction to using the SDK > (http://www.yoctoproject.org/docs/2.1/sdk-manual/sdk-manual.html [3]). > Then deploy the generated code to the E310. It's feasible, but could > be a headache if the external project has other dependencies. > 2. Pybombs cross compile: I just checked, and there's an armadillo > recipe in gr-recipes... Assuming you're using the E310 SDK inside a > pybombs prefix, it might be an easy solution to just pybombs install > armadillo. Worth a shot! And if it doesnt work, it would be good to > share how to fix this :D  > 3. Open-embedded build: Because the E310 distro is built using > openembedded (https://github.com/EttusResearch/meta-ettus/tree/jethro > [4] -- the jethro branch is, I believe, the most recent build), you > could bake the projects of interest into the rootfs from scratch. The > good news is that it seems there's already an armadillo recipe > available: http://layers.openembedded.org/layerindex/recipe/58748/ > [5] If the image you build installs the armadillo recipe, it will > automatically include any dependencies into the rootfs. Then, you can > export the SDK and use that for your cross compile.  > > If you're already using pybombs, it could be easy to do #2. If you > roll your own rootfs and SDK using openembedded, then you have to > maintain your personal SD image/SDK for everything, which has its own > downsides.  > > EJ > > On Thu, Oct 26, 2017 at 9:01 AM, Francois Quitin via USRP-users > <usrp-users@lists.ettus.com> wrote: > >> Dear all, >> >> I'm writing code for the USRP E310 using the SDK from >> http://files.ettus.com/e3xx_images/e3xx-release-4/ [1]  I've been >> able to write code, cross-compile it and execute it without any >> problems on the E310. >> >> I'm trying to include external libraries (open-source ones, such as >> Armadillo) to my cross-compiling project. How can I "cleanly" >> include these libraries in my cross-compiling project? >> >> Thanks, >> François >> >> --- >> >> _______________________________________________ >> USRP-users mailing list >> USRP-users@lists.ettus.com >> http://lists.ettus.com/mailman/listinfo/usrp-users_lists.ettus.com >> [2] > > > > Links: > ------ > [1] http://files.ettus.com/e3xx_images/e3xx-release-4/ > [2] http://lists.ettus.com/mailman/listinfo/usrp-users_lists.ettus.com > [3] http://www.yoctoproject.org/docs/2.1/sdk-manual/sdk-manual.html > [4] https://github.com/EttusResearch/meta-ettus/tree/jethro > [5] http://layers.openembedded.org/layerindex/recipe/58748/ --- Francois QUITIN Assistant Professor BEAMS Dpt. – Embedded Electronics Brussels School of Engineering Université Libre de Bruxelles (ULB) Web https://sites.google.com/site/fquitin2/ Phone +32 2 650 2829

On 10/26/2017 04:07 PM, Francois Quitin via USRP-users wrote: > Dear Philip, EJ, > > Thanks a lot for your replies. To keep things simple, I'm tying to > manually cross-compile the Armadillo library. Unfortunately, there are a > few dependencies that are not available on the default E310 image > (OpenBLAS, LAPACK, ATLAS, SuperLU). Yes, I'm aware that pain. I do need to look over what the gnss sdr guys have done and see what I can do to make it easier for people in your position. Philip > > We've made quite a few changes to the E310 FPGA, so I'm a bit frisky at > re-installing UHD using pybombs... I'd rather just include the libraries > and dependencies I need to my current UHD version. > > Anyway, with the clues you gave me I should be able to figure something > out. > > Thanks! > François > > > > On 26.10.2017 15:27, EJ Kreinar wrote: >> Hi Francois,  >> >> I see Balister beat me to reply... I'm not a cross-compile expert, so >> he probably has better recommendations, but I'll add a couple >> thoughts. There's probably three feasible options: >> >> 1. Manual cross compile: Manually compile the project of interest, >> sourcing the SDK environment and then building with cmake or whatever >> the project's build system is (armadillo looks like cmake). This is a >> decent introduction to using the SDK >> (http://www.yoctoproject.org/docs/2.1/sdk-manual/sdk-manual.html [3]). >> Then deploy the generated code to the E310. It's feasible, but could >> be a headache if the external project has other dependencies. >> 2. Pybombs cross compile: I just checked, and there's an armadillo >> recipe in gr-recipes... Assuming you're using the E310 SDK inside a >> pybombs prefix, it might be an easy solution to just pybombs install >> armadillo. Worth a shot! And if it doesnt work, it would be good to >> share how to fix this :D  >> 3. Open-embedded build: Because the E310 distro is built using >> openembedded (https://github.com/EttusResearch/meta-ettus/tree/jethro >> [4] -- the jethro branch is, I believe, the most recent build), you >> could bake the projects of interest into the rootfs from scratch. The >> good news is that it seems there's already an armadillo recipe >> available: http://layers.openembedded.org/layerindex/recipe/58748/ >> [5] If the image you build installs the armadillo recipe, it will >> automatically include any dependencies into the rootfs. Then, you can >> export the SDK and use that for your cross compile.  >> >> If you're already using pybombs, it could be easy to do #2. If you >> roll your own rootfs and SDK using openembedded, then you have to >> maintain your personal SD image/SDK for everything, which has its own >> downsides.  >> >> EJ >> >> On Thu, Oct 26, 2017 at 9:01 AM, Francois Quitin via USRP-users >> <usrp-users@lists.ettus.com> wrote: >> >>> Dear all, >>> >>> I'm writing code for the USRP E310 using the SDK from >>> http://files.ettus.com/e3xx_images/e3xx-release-4/ [1]  I've been >>> able to write code, cross-compile it and execute it without any >>> problems on the E310. >>> >>> I'm trying to include external libraries (open-source ones, such as >>> Armadillo) to my cross-compiling project. How can I "cleanly" >>> include these libraries in my cross-compiling project? >>> >>> Thanks, >>> François >>> >>> --- >>> >>> _______________________________________________ >>> USRP-users mailing list >>> USRP-users@lists.ettus.com >>> http://lists.ettus.com/mailman/listinfo/usrp-users_lists.ettus.com >>> [2] >> >> >> >> Links: >> ------ >> [1] http://files.ettus.com/e3xx_images/e3xx-release-4/ >> [2] http://lists.ettus.com/mailman/listinfo/usrp-users_lists.ettus.com >> [3] http://www.yoctoproject.org/docs/2.1/sdk-manual/sdk-manual.html >> [4] https://github.com/EttusResearch/meta-ettus/tree/jethro >> [5] http://layers.openembedded.org/layerindex/recipe/58748/ > > --- > Francois QUITIN > Assistant Professor > > BEAMS Dpt. – Embedded Electronics > Brussels School of Engineering > Université Libre de Bruxelles (ULB) > > Web   https://sites.google.com/site/fquitin2/ > Phone +32 2 650 2829 > > _______________________________________________ > USRP-users mailing list > USRP-users@lists.ettus.com > http://lists.ettus.com/mailman/listinfo/usrp-users_lists.ettus.com