взято отсюда
- Enter project properties -> C/C++->Preprocessor Include Paths,etc.->Providers
- Click on CDT GCC Build Output Parser and change the compiler command pattern from
(gcc)|([gc]++)|(clang)to(arm-none-eabi-gcc)|([gc]++)|(clang) - Click apply button
- Click on CDT Built-in Compiler Settings Cross ARM and replace
${COMMAND}witharm-none-eabi-gcc. - Click apply button.