system function call

References:"Linux kernel design and implementation"0 SummarySystem call process for Linux:Levels such as the following:User program------>C library (i.e. API): INT 0x80----->system_call-------> System invoke Service Routines--------> Kernel

Reference:"Linux kernel design and implementation"0 SummarySystem call process for Linux:The hierarchy is as follows:User program------>C library (i.e. API): INT 0x80----->system_call-------> System invoke Service Routines--------> Kernel

5.1.2 function call mechanismIn the previous study, we mentioned the concept of "call function" many times. The so-called function, that is, the execution of control of the program from the caller (a function) to the called function, while passing

Chapter 5 5.5 Linux system call 5.5.1 System Call Interface System calls (commonly referred to as syscils) are the only interface for interaction between linux kernels and upper-layer applications. See Figure 5-4. According to the description of

implementation of system call under Linux Introduction to architecture and system invocation of Unix/linux operating system what is an operating system and system call The operating system is a virtual machine that is abstracted from the hardware,

Last week summed up the "C standard library base IO", in fact, these function functions through "system call" can also achieve the corresponding function. This article is not to detail the use of each system call interface, but rather to understand

The "preface" is explained in the blog post:This article will introduce a personal tone of the Linux Man command in the meaning of the number (including system calls and library function interpretation), at the current point in time "June 13, 2017 "

Linux read System Call and linuxread system call A device that simulates a USB flash drive has been created in a recent project. However, when you read the content of a virtual USB flash drive, you must read it from the disk rather than from the

Program memory Layout-the point of the function call stack, the memory layout function call [Note] This article is a summary of "programmer's self-cultivation", which is mixed with some personal understandings. If there is anything wrong, you are

1. What is system call In the Linux World, we often encounter the term system call. The so-called system call is a series of functions provided by the kernel with very powerful functions. These system calls are implemented in the kernel, and then