stm32 linux编译提示 g++ error: nano.specs: No such file or directory 解决

linux stm32编译提示

arm-none-eabi-g++: fatal error: cannot read spec file 'nano.specs': No such file or directory

sudo apt install libnewlib-arm-none-eabi

新提示

cannot find -lstdc++_nano: No such file or directory

sudo apt install libstdc++-arm-none-eabi-newlib

arm 官网toolchain介绍

Arm GNU Toolchain  is released with two prebuilt C libraries based on newlib, for arm-none-eabi target. One is the standard newlib and the other is newlib-nano  

未使用标准库，为了减小固件大小使用的newlib 和 newlib-nano