go/armel/rootfs/compilers.yaml (8 lines of code) (raw):

--- linux: armv6: # Using debian armel for ARMv6. # This is the same as ARMv5 so it will use softfp instead of hardfp. CC: arm-linux-gnueabi-gcc CXX: arm-linux-gnueabi-g++ armv5: CC: arm-linux-gnueabi-gcc CXX: arm-linux-gnueabi-g++