/usr/lib/arm-none-eabi/ is in binutils-arm-none-eabi 2.26-4ubuntu1+8.
This file is owned by root:root, with mode 0o755.
..
/usr/lib/arm-none-eabi/bin/
/usr/lib/arm-none-eabi/bin/ar
/usr/lib/arm-none-eabi/bin/as
/usr/lib/arm-none-eabi/bin/ld
/usr/lib/arm-none-eabi/bin/ld.bfd
/usr/lib/arm-none-eabi/bin/nm
/usr/lib/arm-none-eabi/bin/objcopy
/usr/lib/arm-none-eabi/bin/objdump
/usr/lib/arm-none-eabi/bin/ranlib
/usr/lib/arm-none-eabi/bin/readelf
/usr/lib/arm-none-eabi/bin/strip
/usr/lib/arm-none-eabi/ldscripts/
/usr/lib/arm-none-eabi/ldscripts/armelf.x
/usr/lib/arm-none-eabi/ldscripts/armelf.xbn
/usr/lib/arm-none-eabi/ldscripts/armelf.xc
/usr/lib/arm-none-eabi/ldscripts/armelf.xn
/usr/lib/arm-none-eabi/ldscripts/armelf.xr
/usr/lib/arm-none-eabi/ldscripts/armelf.xs
/usr/lib/arm-none-eabi/ldscripts/armelf.xsc
/usr/lib/arm-none-eabi/ldscripts/armelf.xsw
/usr/lib/arm-none-eabi/ldscripts/armelf.xu
/usr/lib/arm-none-eabi/ldscripts/armelf.xw