Hi there, I cross build a tool chain for arm-none-eabi targets and find there are some executable files under folder: arm-none-eabi/bin/ ├── ar ├── as ├── c++ ├── g++ ├── gcc ├── ld ├── ld.bfd ├── nm ├── objcopy ├── objdump ├── ranlib └── strip While similar files under folder: bin ├── arm-none-eabi-addr2line ├── arm-none-eabi-ar ├── arm-none-eabi-as ├── arm-none-eabi-c++ ├── arm-none-eabi-c++filt ├── arm-none-eabi-cpp ├── arm-none-eabi-elfedit ├── arm-none-eabi-g++ ├── arm-none-eabi-gcc ├── arm-none-eabi-gcc-4.7.4 ├── arm-none-eabi-gcc-ar ├── arm-none-eabi-gcc-nm ├── arm-none-eabi-gcc-ranlib ├── arm-none-eabi-gcov ├── arm-none-eabi-gdb ├── arm-none-eabi-gdbtui ├── arm-none-eabi-gprof ├── arm-none-eabi-ld ├── arm-none-eabi-ld.bfd ├── arm-none-eabi-nm ├── arm-none-eabi-objcopy ├── arm-none-eabi-objdump ├── arm-none-eabi-ranlib ├── arm-none-eabi-readelf ├── arm-none-eabi-size ├── arm-none-eabi-strings └── arm-none-eabi-strip I know we use those under top level bin folder normally. But what's the difference between those under arm-none-eabi/bin and those under bin? Who will use those under folder arm-none-eabi/bin? Thanks for your help. BR, Terry