# Compiling GNURadio on BananaPI **URL:** \ **Category:** GNU Radio\ **Created:** [January 9, 2015, 4:46pm UTC](https://www.ruby-forum.com/t/compiling-gnuradio-on-bananapi/233762 "2015-01-09T16:46:29Z")\ **Posts on this page:** 10\ **Page:** 1
**Author:** ![addis\_a](https://www.ruby-forum.com/letter_avatar_proxy/v4/letter/a/c4cdca/32.png) [@addis\_a](https://www.ruby-forum.com/u/addis_a)\ **Post date:** [January 9, 2015, 4:46pm UTC](https://www.ruby-forum.com/t/compiling-gnuradio-on-bananapi/233762/1 "2015-01-09T16:46:29Z")
* * * Discuss-gnuradio mailing list removed\_email\_address@domain.invalid [https://lists.gnu.org/mailman/listinfo/discuss-gnuradio](https://lists.gnu.org/mailman/listinfo/discuss-gnuradio) ---
**Author:** ![andreas\_l](https://www.ruby-forum.com/letter_avatar_proxy/v4/letter/a/7bcc69/32.png) [@andreas\_l](https://www.ruby-forum.com/u/andreas_l)\ **Post date:** [January 9, 2015, 8:38pm UTC](https://www.ruby-forum.com/t/compiling-gnuradio-on-bananapi/233762/2 "2015-01-09T20:38:39Z")
I must correct a detail. The datasheet tells me that bananapi has a Cortex-A7. cat /proc/cpuinfo: Processor : ARMv7 Processor rev 4 (v7l) processor : 0 BogoMIPS : 1431.55 processor : 1 BogoMIPS : 1436.46 Features : swp half thumb fastmult vfp edsp neon vfpv3 tls vfpv4 idiva idivt CPU implementer : 0x41 CPU architecture: 7 CPU variant : 0x0 CPU part : 0xc07 CPU revision : 4 Hardware : sun7i Revision : 0000 Serial : 0481019f5254484880485783165166d2 ---
**Author:** ![andreas\_l](https://www.ruby-forum.com/letter_avatar_proxy/v4/letter/a/7bcc69/32.png) [@andreas\_l](https://www.ruby-forum.com/u/andreas_l)\ **Post date:** [January 9, 2015, 8:49pm UTC](https://www.ruby-forum.com/t/compiling-gnuradio-on-bananapi/233762/3 "2015-01-09T20:49:11Z")
On Fri, Jan 9, 2015 at 1:37 PM, Andreas L. [removed\_email\_address@domain.invalid](mailto:removed_email_address@domain.invalid) wrote: > BogoMIPS : 1436.46 > Revision : 0000 > source. The message is gone. > [2%] Building ASM object volk/lib/CMakeFiles/volk.dir/\_\_/kernels/volk/asm/neon/volk\_32fc\_32f\_dot\_prod\_32fc\_a\_neonasmvmla.s.o > failed [volk/lib/CMakeFiles/volk.dir/\_\_/kernels/volk/asm/neon/volk\_32f\_x2\_dot\_prod\_32f\_neonasm\_opts.s.o] > cheers, > Andreas I don’t know that it’s a definite fix for this, but I was going to suggest making sure the tune settings fit your processor. If that’s not the case we can look around for a suitable change. Keep us updated. Nathan ---
**Author:** ![andreas\_l](https://www.ruby-forum.com/letter_avatar_proxy/v4/letter/a/7bcc69/32.png) [@andreas\_l](https://www.ruby-forum.com/u/andreas_l)\ **Post date:** [January 9, 2015, 10:54pm UTC](https://www.ruby-forum.com/t/compiling-gnuradio-on-bananapi/233762/4 "2015-01-09T22:54:10Z")
> > processor : 1 > > Hardware : sun7i > > cmake is below 2.8.10. So i compiled and installed the last cmake 3.1 from volk/lib/CMakeFiles/volk.dir/\_\_/kernels/volk/asm/neon/volk\_32fc\_x2\_dot\_prod\_32fc\_neonasm\_opttests.s.o > > [2%] Building ASM object ‘volk/lib/CMakeFiles/volk.dir/\_\_/kernels/volk/asm/neon/volk\_32f\_x2\_dot\_prod\_32f\_neonasm\_opts.s.o’ > > The result is: > > make[2]: \*\*\* > > Any ideas ? > > > > cheers, > > Andreas > > I don’t know that it’s a definite fix for this, but I was going to > suggest making sure the tune settings fit your processor. If that’s > not the case we can look around for a suitable change. Keep us > updated. > > Nathan Hi Nathan, cmake ../ -DCMAKE\_C\_FLAGS=“-march=armv7 -mthumb-interwork -mfloat-abi=hard -mfpu=neon -mtune=cortex-a7” -DCMAKE\_ASM\_FLAGS="-march=armv7 -mthumb-interwork -mfloat-abi=hard -mfpu=neon results in the message: Scanning dependencies of target volk [2%] Building ASM object volk/lib/CMakeFiles/volk.dir/**/kernels/volk/asm/neon/volk\_32fc\_32f\_dot\_prod\_32fc\_a\_neonasmpipeline.s.o [2%] Building ASM object volk/lib/CMakeFiles/volk.dir/**/kernels/volk/asm/neon/volk\_32fc\_x2\_dot\_prod\_32fc\_neonasm.s.o [2%] Building ASM object volk/lib/CMakeFiles/volk.dir/**/kernels/volk/asm/neon/volk\_32fc\_x2\_dot\_prod\_32fc\_neonasm\_opttests.s.o [2%] Building ASM object volk/lib/CMakeFiles/volk.dir/**/kernels/volk/asm/neon/volk\_32fc\_32f\_dot\_prod\_32fc\_a\_neonasm.s.o [2%] Building ASM object volk/lib/CMakeFiles/volk.dir/**/kernels/volk/asm/neon/volk\_32f\_s32f\_multiply\_32f\_neonasm.s.o [2%] Building ASM object volk/lib/CMakeFiles/volk.dir/**/kernels/volk/asm/neon/volk\_32fc\_32f\_dot\_prod\_32fc\_unrollasm.s.o [2%] Building ASM object volk/lib/CMakeFiles/volk.dir/**/kernels/volk/asm/neon/volk\_16i\_max\_star\_horizontal\_16i.s.o [2%] Building ASM object volk/lib/CMakeFiles/volk.dir/**/kernels/volk/asm/neon/volk\_32f\_x2\_add\_32f\_a\_neonasm.s.o [2%] Building ASM object volk/lib/CMakeFiles/volk.dir/**/kernels/volk/asm/neon/volk\_32fc\_32f\_dot\_prod\_32fc\_a\_neonasmvmla.s.o [2%] Building ASM object volk/lib/CMakeFiles/volk.dir/**/kernels/volk/asm/neon/volk\_32f\_x2\_add\_32f\_a\_neonpipeline.s.o [3%] Building ASM object volk/lib/CMakeFiles/volk.dir/**/kernels/volk/asm/neon/volk\_32f\_x2\_dot\_prod\_32f\_neonasm\_opts.s.o /home/bananapi/gnuradio\_src/gnuradio/volk/kernels/volk/asm/neon/volk\_32f\_x2\_dot\_prod\_32f\_neonasm\_opts.s: Assembler messages: /home/bananapi/gnuradio\_src/gnuradio/volk/kernels/volk/asm/neon/volk\_32f\_x2\_dot\_prod\_32f\_neonasm\_opts.s:46: Error: selected processor does not support ARM mode `sbfx r11,r1,#2,#1’ volk/lib/CMakeFiles/volk.dir/build.make:1519: recipe for target 'volk/lib/CMakeFiles/volk.dir/**/kernels/volk/asm/neon/volk\_32f\_x2\_dot\_prod\_32f\_neonasm\_opts.s.o’ failed make[2]: \*\*\* [volk/lib/CMakeFiles/volk.dir/\_\_/kernels/volk/asm/neon/volk\_32f\_x2\_dot\_prod\_32f\_neonasm\_opts.s.o] Error 1 CMakeFiles/Makefile2:164: recipe for target ‘volk/lib/CMakeFiles/volk.dir/all’ failed make[1]: \*\*\* [volk/lib/CMakeFiles/volk.dir/all] Error 2 Makefile:147: recipe for target ‘all’ failed make: \*\*\* [all] Error 2 Is it possible that ARM isnt supported in volk ? Error: selected processor does not support ARM mode `sbfx r11,r1,#2,#1’ Andreas ---
**Author:** ![andreas\_l](https://www.ruby-forum.com/letter_avatar_proxy/v4/letter/a/7bcc69/32.png) [@andreas\_l](https://www.ruby-forum.com/u/andreas_l)\ **Post date:** [January 9, 2015, 11:17pm UTC](https://www.ruby-forum.com/t/compiling-gnuradio-on-bananapi/233762/5 "2015-01-09T23:17:50Z")
Instead of building on the board itself, wouldn’t be better to compile the source code on your working machine by exporting the toolchain compilers by means of a simple script ? 2015-01-09 22:52 GMT+01:00 Andreas L. [removed\_email\_address@domain.invalid](mailto:removed_email_address@domain.invalid): ---
**Author:** ![andreas\_l](https://www.ruby-forum.com/letter_avatar_proxy/v4/letter/a/7bcc69/32.png) [@andreas\_l](https://www.ruby-forum.com/u/andreas_l)\ **Post date:** [January 10, 2015, 9:36am UTC](https://www.ruby-forum.com/t/compiling-gnuradio-on-bananapi/233762/6 "2015-01-10T09:36:34Z")
Am 09.01.2015 um 23:29 schrieb Tech: > sudo swapon /sata/swapfile > free -m > > Thanks I already have a swap partition with 2 GB. I tried out your suggestion. The result is the same: Scanning dependencies of target volk [1%] Building ASM object volk/lib/CMakeFiles/volk.dir/**/kernels/volk/asm/neon/volk\_32f\_x2\_dot\_prod\_32f\_neonasm\_opts.s.o /home/bananapi/gnuradio\_src/gnuradio/volk/kernels/volk/asm/neon/volk\_32f\_x2\_dot\_prod\_32f\_neonasm\_opts.s: Assembler messages: /home/bananapi/gnuradio\_src/gnuradio/volk/kernels/volk/asm/neon/volk\_32f\_x2\_dot\_prod\_32f\_neonasm\_opts.s:46: Error: selected processor does not support ARM mode `sbfx r11,r1,#2,#1’ volk/lib/CMakeFiles/volk.dir/build.make:1519: recipe for target 'volk/lib/CMakeFiles/volk.dir/**/kernels/volk/asm/neon/volk\_32f\_x2\_dot\_prod\_32f\_neonasm\_opts.s.o’ failed make[2]: \*\*\* [volk/lib/CMakeFiles/volk.dir/\_\_/kernels/volk/asm/neon/volk\_32f\_x2\_dot\_prod\_32f\_neonasm\_opts.s.o] Error 1 CMakeFiles/Makefile2:164: recipe for target ‘volk/lib/CMakeFiles/volk.dir/all’ failed make[1]: \*\*\* [volk/lib/CMakeFiles/volk.dir/all] Error 2 Makefile:147: recipe for target ‘all’ failed make: \*\*\* [all] Error 2 ---
**Author:** ![andreas\_l](https://www.ruby-forum.com/letter_avatar_proxy/v4/letter/a/7bcc69/32.png) [@andreas\_l](https://www.ruby-forum.com/u/andreas_l)\ **Post date:** [January 11, 2015, 10:54am UTC](https://www.ruby-forum.com/t/compiling-gnuradio-on-bananapi/233762/7 "2015-01-11T10:54:03Z")
With the latest LUbuntu (instead of the latest raspian like in my last mails) version of Banana Pi the following error results when compiling gnuradio with the gnuradio build-script: Linking CXX executable test\_all libvolk.so.0.0.0: undefined reference to `volk_32fc_x2_multiply_32fc_neonasm' libvolk.so.0.0.0: undefined reference to`volk\_16i\_max\_star\_horizontal\_16i\_neonasm’ libvolk.so.0.0.0: undefined reference to `volk_32fc_32f_dot_prod_32fc_a_neonasm' libvolk.so.0.0.0: undefined reference to`volk\_32f\_x2\_dot\_prod\_32f\_neonasm\_opts’ libvolk.so.0.0.0: undefined reference to `volk_32fc_32f_dot_prod_32fc_a_neonpipeline' libvolk.so.0.0.0: undefined reference to`volk\_32f\_x2\_dot\_prod\_32f\_neonasm’ collect2: error: ld returned 1 exit status make[2]: \*\*\* [volk/lib/test\_all] Error 1 make[1]: \*\*\* [volk/lib/CMakeFiles/test\_all.dir/all] Error 2 Linking CXX executable volk\_profile …/lib/libvolk.so.0.0.0: undefined reference to `volk_32fc_x2_multiply_32fc_neonasm' ../lib/libvolk.so.0.0.0: undefined reference to`volk\_16i\_max\_star\_horizontal\_16i\_neonasm’ …/lib/libvolk.so.0.0.0: undefined reference to `volk_32fc_32f_dot_prod_32fc_a_neonasm' ../lib/libvolk.so.0.0.0: undefined reference to`volk\_32f\_x2\_dot\_prod\_32f\_neonasm\_opts’ …/lib/libvolk.so.0.0.0: undefined reference to `volk_32fc_32f_dot_prod_32fc_a_neonpipeline' ../lib/libvolk.so.0.0.0: undefined reference to`volk\_32f\_x2\_dot\_prod\_32f\_neonasm’ collect2: error: ld returned 1 exit status make[2]: \*\*\* [volk/apps/volk\_profile] Error 1 make[1]: \*\*\* [volk/apps/CMakeFiles/volk\_profile.dir/all] Error 2 make: \*\*\* [all] Error 2 make failed ---
**Author:** ![andreas\_l](https://www.ruby-forum.com/letter_avatar_proxy/v4/letter/a/7bcc69/32.png) [@andreas\_l](https://www.ruby-forum.com/u/andreas_l)\ **Post date:** [January 9, 2015, 11:30pm UTC](https://www.ruby-forum.com/t/compiling-gnuradio-on-bananapi/233762/8 "2015-01-09T23:30:50Z")
I think when I built it I used: cmake -DCMAKE\_CXX\_FLAGS="-mcpu=cortex-a7 -mfpu=neon-vfpv4 -mtune=cortex-a7 -funsafe-math-optimizations" …/ -Wno-dev I also had to enable swap space because the bpi doesn’t have enough memory for some of the compile stages: sudo dd if=/dev/zero of=/sata/swapfile bs=1024 count=1024k sudo mkswap /sata/swapfile sudo swapon /sata/swapfile free -m Thanks ---
**Author:** ![andreas\_l](https://www.ruby-forum.com/letter_avatar_proxy/v4/letter/a/7bcc69/32.png) [@andreas\_l](https://www.ruby-forum.com/u/andreas_l)\ **Post date:** [January 11, 2015, 3:55pm UTC](https://www.ruby-forum.com/t/compiling-gnuradio-on-bananapi/233762/9 "2015-01-11T15:55:16Z")
On Sun, Jan 11, 2015 at 4:52 AM, Andreas L. [removed\_email\_address@domain.invalid](mailto:removed_email_address@domain.invalid) wrote: > a\_neonasm’ > ../lib/libvolk.so.0.0.0: undefined reference to > neonasm’ > collect2: error: ld returned 1 exit status > make[2]: \*\*\* [volk/apps/volk\_profile] Error 1 > make[1]: \*\*\* [volk/apps/CMakeFiles/volk\_profile.dir/all] Error 2 > make: \*\*\* [all] Error 2 > make failed Yes. As has already been mentioned on this thread, on these devices, you need to set some extra cmake flags. See our Embedded page and the section on Native Compiling. [http://gnuradio.org/redmine/projects/gnuradio/wiki/Embedded](http://gnuradio.org/redmine/projects/gnuradio/wiki/Embedded) Even with this information out there, I still don’t understand why people try and natively compile GNU Radio on these devices… Tom ---
**Author:** ![andreas\_l](https://www.ruby-forum.com/letter_avatar_proxy/v4/letter/a/7bcc69/32.png) [@andreas\_l](https://www.ruby-forum.com/u/andreas_l)\ **Post date:** [January 11, 2015, 6:37pm UTC](https://www.ruby-forum.com/t/compiling-gnuradio-on-bananapi/233762/10 "2015-01-11T18:37:13Z")
> ``` > `volk_32fc_32f_dot_prod_32fc_a_neonasm' > ../lib/libvolk.so.0.0.0: undefined reference to > `volk_32f_x2_dot_prod_32f_neonasm' > > ``` > > section on Native Compiling. > > [http://gnuradio.org/redmine/projects/gnuradio/wiki/Embedded](http://gnuradio.org/redmine/projects/gnuradio/wiki/Embedded) > Yes, i know this. But this doesnt work on the raspian OS on Banana. On > Lubuntu for Banana this works now with this extra cmake flags. > > Even with this information out there, I still don’t understand why > people try and natively compile GNU Radio on these devices… > Because to make the experience that native compiling on these devices is > terrible 🙂 In the future i will use cross compiling. > Tom Andreas