我正在开发一个裸机 STM32 项目，在 Linux x64 主机上进行编译。
将我的工具链从 升级到 后gcc-arm-none-eabi-11.2-2022.02，arm-gnu-toolchain-11.3.rel1-x86_64-arm-none-eabi我收到以下链接器警告：
warning: _close is not implemented and will always fail
warning: _fstat is not implemented and will always fail
warning: _getpid is not implemented and will always fail
warning: _isatty is not implemented and will always fail
warning: _kill is not implemented and will always fail
warning: _lseek is not implemented and will always fail
warning: _open is not implemented and will always fail
warning: _read is not …