Do not use a different GCC when compiling the kernel image and the user space tools because it can result in a system lock up.
编译内核映像和用户空间工具时不要使用不同的gcc，因为这可能会造成系统的锁定。
Compiling packages can require a lot of disk space which will be reclaimed after the package is installed.
编译软件包的时候需要很多的硬盘空间，这些可以在软件包安装成功后回收再利用。
During the compiling, it is of importance to have code optimization reduce the operating time and loading space of target code.
编译过程中，代码优化能减少目标代码的运行时间和存储空间，具有重要作用。
The compiler will only inline very small functions when compiling for space.
当编译器针对空间编译时，只会内嵌非常小的函式。
The compiler will only inline very small functions when compiling for space.
当编译器针对空间编译时，只会内嵌非常小的函式。
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