关于CROSS_COMPILE的问题

[cmb44]

经常在make命令中看到 ARCH=arm CROSS_COMPILE=arm-linux
CROSS_COMPILE是指什么呢？
请高手指点

[李迟]

CROSS_COMPILE指的是交叉编译器(或前缀)，这里是arm-linux(-gcc)。
可以在Makefile中指定，也可以在make后指定(如楼主所示)。

[哈皮歪詩]

Cross Compiling means you work on machine A while compile code for machine B. Here A and B usually have different type of CPU architecture. For example, machine A could be your PC (x86 arch) while machine B has an ARM type CPU, so in this case the cross compiler is run on x86 machine, but generate code for ARM. The generated code can be burned into a flash that is on the ARM development board, or it can be downloaded into RAM through other interface, like RS232 or USB etc.

So don't be intimated by the term CROSS COMPILER. There is nothing fancy about it.

[Wenxy1]

交叉编译工具链的环境变量。
export命令可以查看当前shell里定义的环境变量。

[lgjywjy]

交叉编译器

[cmb44]

[Quote=引用 1 楼 subfate 的回复:]

CROSS_COMPILE指的是交叉编译器(或前缀)，这里是arm-linux(-gcc)。
可以在Makefile中指定，也可以在make后指定(如楼主所示)。
[/Quote]
谢谢这位小哥 帮我解决了arm-linux(-gcc)的问题

[cmb44]

[Quote=引用 2 楼 hahahaha_hax4 的回复:]
Cross Compiling means you work on machine A while compile code for machine B. Here A and B usually have different type of CPU architecture. For example, machine A could be your PC (x86 arch) while mac……
[/Quote]

大概明白了 十分感谢