pi@raspberrypi /nix/store/3dqcv7knwsz9lny3h9xzy40z3kv9xq4w-binutils-2.27/bin $ readelf -A ./readelf
Attribute Section: aeabi
File Attributes
Tag_CPU_name: "7-A"
Tag_CPU_arch: v7
Tag_CPU_arch_profile: Application
Tag_ARM_ISA_use: Yes
Tag_THUMB_ISA_use: Thumb-2