Massimiliano Cialdi <massimiliano.cialdi@xxxxxxxxxxxx> writes: > I have build arm-elf, I wonder what are the differences between arm-elf > and arm-eabi. > > For my purposes (bare HW no OS) are equivalent? I'm not sure, but I think there are some differences in runtime exception handling and in the interaction between ARM and Thumb code. In general arm-eabi is the preferred and supported target these days. But arm-elf may work fine for your purposes. Ian