kernel burner

PHP kernel decryption series: Execution Process of zend_execute, kernel zend_execute PHP kernel decryption series: Execution Process of zend_execute The interpreter engine finally executes the op function zend_execute. In fact, zend_execute is a function pointer. During engine initialization, zend_execute points to execute by default, this execute is defined

Programs running in the Linux kernel should always prevent competing states caused by concurrency. This will cause the data structure to be broken down and cause the kernel to crash in severe cases. Therefore, the kernel synchronization technology is very important to the driver developed by the kernel. People who do n

RefHttp://www.zhizhihu.com/html/y2010/2292.htmlKernel FunctionsBelow is a list of some kernel functions available from the existing literature. As is the case with previous articles, every LaTeX notation for the formulas below is readily available from their A Lternate text HTML tag. I can not guarantee all of them is perfectly correct, thus use them at your own risk. The most of them has links to articles where they has been originally used or propos

Linux Kernel compilation details, Linux kernel details After learning some online materials, I tried to find out and sort out this article. We hope you will criticize and correct the mistakes due to their limited level and improper position. Important references include: Http://raspberrypi.stackexchange.com/questions/192/how-do-i-cross-compile-the-kernel-on-a-ub

Data exchange between linux kernel and user layer and linux Kernel 1. There are basically System Call interfaces file_operation interfaces: read write ioctl? Module param of module driver (module parameters of module driver ). 2. kernel startup parameters :?By identifying the parameters passed by bootloader?_ Setup ("para_name =", parse_func) 3. asynchronous no

Linux kernel:Kernel design Genre:Single core design, but fully learn the advantages of micro-kernel system design, for the kernel introduced a modular mechanism, the core height of modularity;After the kernel is modularized, some of the most basic and important content is compiled into kernel core, while other function

Chapter One: Introduction to the Kernel The scope of the processor's activity at any given point in time: A, run in the kernel space, in the process context, on behalf of a specific process execution; b, running in kernel space, in the interrupt context, regardless of any process, handling a particular interrupt; C, run in user space, execute user process. When a

Specific questions Reference Solutions Solution Ideas Deep solution 1. Specific questions:After porting the kernel of 3.6.6, download the startup card to die, specifically the serial printing information stuck in "uncompressing Linux ... done, booting the kernel."2. Reference Solution:According to the online statement to ensure that the following conditions: 2.1 Core clock frequenc

Introduction to the Linux kernel module the overall structure of the Linux kernel is already very large, and it contains many components. How can we include all the required parts in the kernel?One way is to compile all required functions into the Linux kernel. This will cause two problems. One is that the generated

1. Comparison of several kernel debugging tools KDB: Debugging can only be performed at the compilation code level;The advantage is that two machines are not required for debugging. GDB: it lacks some essential functions when debugging A module. It can be used to view the running status of the kernel, including disassembly of kernel functions. Kgdb: it is conven

Use kgdb to debug Linux kernel and Kernel Modules Created:Article attributes: originalArticle submission: xcspy (xcspy.com _ at_gmail.com) Author: xcspy member ladybugE-mail: xcspy.com@gmail.comHome: www.xcspy.com 1. Comparison of several kernel debugging tools KDB: Debugging can only be performed at the compilation code level;The advantage is that two machines a

The mutex Kernel Object ensures that a thread exclusively accesses resources. The behavior characteristics of mutex kernel objects are similar to those of key code segments, but they are kernel objects, and key code segments are user mode objects, as a result, the mutually exclusive kernel objects run at a lower speed

Most Linux instances are single-coreThe operating system kernel may be a micro kernel or a single kernel (which is sometimes called a macro kernel macrokernel ). These terms are defined as follows in a similar encapsulation:L microkernel (microkernel)-In the microkernel, most kernels run as separate processes in a priv

Features of Linux kernel development Compared with applications in a user spaceProgramThere are many differences in development and kernel development. The most important differences include: 1) The C library cannot be accessed during kernel programming. 2) gnu c must be used for Kernel programming. 3) There is

Kernel-level thread and user-level thread, kernel-level thread user When I wrote this blog these two days, I reviewed the operating system materials and encountered a problem that I did not understand before, that is, about kernel-level threads and user-level threads. After reading some documents, I will share my personal profile. Threads have been implemented in

I. Description of BOOTM BOOTM This command is used to start an operating system image. It obtains some information from the head of the image file, which includes the CPU architecture of the image file, its operating system type, the type of image, the compression method, the load address of the image file in memory, the entry address of the image file to run, the image filename, and so on.The BOOTM then loads the image to the specified address and, if necessary, extracts the image and passes t

https://www.ibm.com/developerworks/cn/linux/l-kerns-usrs/#ibm-pcon first, the introduction In general, the kernel and application have different address spaces on a multitasking system that uses virtual memory technology, so data exchange between the kernel and applications and between applications and applications requires specialized mechanisms for implementation, and it is well known that Inter-process

User thread and kernel thread, user thread kernel thread 1. kernel-level thread: switch is controlled by the kernel. When the thread is switched, the user State is converted to the kernel state. After switching, the user State should be returned from the

Recently, some netizens have repeatedly mentioned an open source project kernel-win32 designed to move wineserver into the kernel; some questions and themselves, hoping to make some analysis and explanation of its code, also asked about the relationship between compatible kernels and this project. So from the beginning of this talk about kernel-win32.First, compa

Before attempting the kernel development, you need to have an overall understanding of the kernel.Main content: Get the kernel source code Structure of Kernel source code Methods for compiling the kernel Features of kernel development 1. Get the