Need to be careful with this one. Cross Compiling and Native compiling on the Raspbian Image ( Debian Wheezy, or upgraded to Jessie ) or even the Fedora / Arch images is a fare bit different than x86/x86_64 cross compiling.
For speed, using the native RPI2 device is a non-starter. It's 4 cores yes, but even over-clocked , it maxes out at about ~1Ghz ~1.2Ghz per core. Bill's i7 Dev box would run circles around the RPi2 native setup. To build the Release Image on the Rpi2, the final steps in the WSJT-X Cmake process takes at least 8-10 minutes on a fresh / new build. That doesn't count the 0-100% steps before that. Total is ~12-15 minutes per turn is about average. This would be close to average for all the mini-arm devices boards. Some may be a little bit faster. If I were going to do this long term, I would definitely use a distro that supported armhf cross compilers, and, has the ability to update-alternatives for switching the compilers in and out. You don't need to switch, but just makes things easier. 73's Greg, KI7MT On 04/27/2015 11:38 AM, David Ranch wrote: > > Hello Bill, > > There is quite a lot of documentation out there for this: > > https://www.raspberrypi.org/documentation/linux/kernel/building.md > > https://www.google.com/search?q=raspberry+pi+cross+compile+toolchain > > --David > KI6ZHD > > > On 04/27/2015 06:41 AM, Bill Somerville wrote: >> Hi All, >> >> I would like to add an ARMv7 architecture build to the release kits of >> WSJT-X. I do all the builds on a series of virtual machines on an Intel >> architecture machine and therefore would like to do this build on an >> Intel Linux VM. >> >> Has anyone established a cross compile environment for WSJT-X on Linux >> to target the ARM architecture? >> >> I believe some of you have built on target boards like Raspberry Pi2 and >> Beagle Bone Black but rather than use slow target hardware I would >> rather build on my i7 VM host using cross tools. > > > ------------------------------------------------------------------------------ > One dashboard for servers and applications across Physical-Virtual-Cloud > Widest out-of-the-box monitoring support with 50+ applications > Performance metrics, stats and reports that give you Actionable Insights > Deep dive visibility with transaction tracing using APM Insight. > http://ad.doubleclick.net/ddm/clk/290420510;117567292;y > _______________________________________________ > wsjt-devel mailing list > [email protected] > https://lists.sourceforge.net/lists/listinfo/wsjt-devel > ------------------------------------------------------------------------------ One dashboard for servers and applications across Physical-Virtual-Cloud Widest out-of-the-box monitoring support with 50+ applications Performance metrics, stats and reports that give you Actionable Insights Deep dive visibility with transaction tracing using APM Insight. http://ad.doubleclick.net/ddm/clk/290420510;117567292;y _______________________________________________ wsjt-devel mailing list [email protected] https://lists.sourceforge.net/lists/listinfo/wsjt-devel
