在ARM_LINUX平台上实现用户自定义系统调用，网上大多资料都是X86平台下linux系统调用的实现机制。本资料在分析ARM_linux系统调用机制的基础上实现了用户自定义系统调用。该模块移植性强，模块化！-In ARM_LINUX platform to achieve user-defined system calls, on-line most of the information is under the X86 platform, the implementation mechani