系统调用 System call
（重定向自Syscall）
![系统调用（system calls）, Linux内核, GNU C函式库（glibc）.](/Images/godic/202502/14/Linux_kernel_System_Call_Interface_and_glibc.svg4023.png")
![A high-level overview of the Linux kernel's system call interface, which handles communication between its various components and the userspace](/Images/godic/202502/14/Linux_kernel_interfaces.svg4023.png")
在计算机中，系统调用（英语：system call），又称为系统调用，指运行在用户空间的进程向操作系统内核请求需要更高权限运行的服务。系统调用提供用户进程与操作系统之间的接口。大多数系统交互式操作需求在内核态执行。如设备IO操作或者进程间通信。
Syscall
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System call 系统调用
（重定向自Syscall）
In computing, a system call is the programmatic way in which a computer program requests a service from the kernel of the operating system it is executed on. This may include hardware-related services (for example, accessing a hard disk drive), creation and execution of new processes, and communication with integral kernel services such as process sche****ng. System calls provide an essential interface between a process and the operating system.
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