Nios® II Embedded Design Suite (EDS)
Support for Embedded Development Tools, Processors (SoCs and Nios® II processor), Embedded Development Suites (EDSs), Boot and Configuration, Operating Systems, C and C++
Intel Support hours are Monday-Fridays, 8am-5pm PST, except Holidays. Thanks to our community members who provide support during our down time or before we get to your questions. We appreciate you!

Need Forum Guidance? Click here
Search our FPGA Knowledge Articles here.
12435 Discussions

Cannot build root filesystem using Buildroot on Ubuntu 14.10

Honored Contributor II



I'm building Linux kernel and root filesystem for Arrow SoCKit. 


I've installed cross compiler on Ubuntu 14.10 machine: 

$ sudo apt-get install gcc-arm-linux-gnueabihf 

$ arm-linux-gnueabihf-gcc --version 

arm-linux-gnueabihf-gcc (Ubuntu/Linaro 4.9.1-16ubuntu6) 4.9.1 

Copyright (C) 2014 Free Software Foundation, Inc. 

This is free software; see the source for copying conditions. There is NO 



The cross-compiler works. I've used it to build kernel for Arrow SoCKit: 

$ make CROSS_COMPILE=arm-linux-gnueabihf- ARCH=arm socfpga_defconfig  

$ alias armmake='make CROSS_COMPILE=arm-linux-gnueabihf- ARCH=arm' <--I put this into .profile  

$ armmake -j4 uImage LOADADDR=0x8000 <-- this produced the expected uImage 



But then I run into problem trying to build root fs for SoCKit using Buildroot-2014.11:  

$ make menuconfig 

Within Buildroot menuconfig I set the Toolchain as follows: 

Toolchain type (External toolchain) --->  

Toolchain (Custom toolchain) --->  

Toolchain origin (Pre-installed toolchain) --->  

(/usr/) Toolchain path  

(arm-linux-gnueabihf) Toolchain prefix  

External toolchain kernel headers series (3.1.x) --->  

External toolchain C library (glibc/eglibc) --->  

[*] Toolchain has RPC support?  

[*] Toolchain has C++ support?  

() Extra toolchain libraries to be copied to target  

[ ] Copy gdb server to the Target  

[ ] Build cross gdb for the host  

[ ] Purge unwanted locales  

() Generate locale data  

[ ] Copy gconv libraries  

[*] Enable MMU support  

(-pipe) Target Optimizations  

() Target linker options  

[ ] Register toolchain within Eclipse Buildroot plug-in  


Then run make and get the following error: 

$ make 

/usr/bin/make -j1 HOSTCC="/usr/bin/gcc" HOSTCXX="/usr/bin/g++" silentoldconfig 

make[1]: Entering directory '/home/jeff/buildroot-2014.11' 

BR2_DEFCONFIG='' KCONFIG_AUTOCONFIG=/home/jeff/buildroot-2014.11/output/build/buildroot-config/auto.conf KCONFIG_AUTOHEADER=/home/jeff/buildroot-2014.11/output/build/buildroot-config/autoconf.h KCONFIG_TRISTATE=/home/jeff/buildroot-2014.11/output/build/buildroot-config/tristate.config BR2_CONFIG=/home/jeff/buildroot-2014.11/.config BR2_EXTERNAL=support/dummy-external /home/jeff/buildroot-2014.11/output/build/buildroot-config/conf --silentoldconfig 

make[1]: Leaving directory '/home/jeff/buildroot-2014.11' 

>>> toolchain-external undefined Configuring 

cc1: fatal error: /usr/arm-linux-gnueabihf//usr/include/linux/version.h: No such file or directory 

compilation terminated. 

support/scripts/ 38: support/scripts/ /tmp/check-headers.uAeguv: Permission denied 

package/ recipe for target '/home/jeff/buildroot-2014.11/output/build/toolchain-external-undefined/.stamp_configured' failed 

make: *** [/home/jeff/buildroot-2014.11/output/build/toolchain-external-undefined/.stamp_configured] Error 1 


I've used Buildroot in Arch Linux without encountering the above problem. I'm new to Ubuntu, and can't figure out what is going wrong.  


Can anyone help? Thanks!
0 Kudos
0 Replies