linux-system-call

系统调用向量表 (System call table)

linux-4.10/arch/x86/entry/syscalls/syscall_64.tbl

<number> <abi> <name> <entry point>
394	64	my_func			sys_my_func

linux-4.10/include/linux/syscalls.h

添加一行函数声明

asmlinkage long sys_my_func(int count);