lending kernel

Linux Kernel development-process scheduling and Linux kernel Process Scheduling This section briefly introduces the knowledge about process scheduling in kernel development. What is process scheduling? Process Scheduling is to select the most appropriate process execution process from a ready process. Process Scheduling Policy Real-time Class Scheduling Polic

Linux Kernel compilation practice-Linux configuration and kernel compilation utility-general Linux technology-linux programming and kernel information. For details, see the following. Many tools are used to configure and compile the kernel. Here, we will only introduce several key tools. For more information, see the r

Core (Kernel):/boot/vmlinuz-version version with release package, local versionKernel module (Kernel object):/lib/modules/version/Kernel design:Single CoreModular design-small core, function moduleMicro-coreLoading module:InsmodModprobeKernel Download: www.kernel.org2 (Master). 6 (Times). 17 (fixed)-->2.6.17.1 fix bug2.6.18.RC1 (alternate) new featuresUser space

First, the experimental environmentVirtual machines: VMware Workstation 12.0;Operating system: ubuntu16.04 (32-bit);Current kernel version: 4.4.0-21-genericSecond, the Knowledge reserveNow, let's take a look at what a kernel module is:A module is a standalone program that can be compiled separately, but not run independently. It is linked to the kernel at run tim

I Build Android Kernel (with Module enabled)1. Kernel source is under Android_src/kernel folder2. Config file is under kernel_src/arch/arm/configs folder Xxx_deconfig3. Setup Config:$make Arch=arm Cross_compile=arm-eabi-xxx_defconfig(. config file can also is created from device:ADB pull proc/config.gzZcat config.gz >. config)4. Enable module:$make Arch=arm Cross

ARM Linux size kernel switch -cortex-a7 big. LITTLE size switch Code Analysis8-core CPUs or more cores, these CPUs may not be completely symmetrical. There are 4 A15 and 4 A7, or 4 A57 and 4 A53, even like HiSilicon Kylin 935 processor (4 Core A53 2.2 GHz + 4 core A53 1.5 GHz), the frequencies of these 8 cores may not be the same, then the use of the process requires the size of the core switch (high frequency is the large core, The low frequency is

First, the experimental processOpen the shell using the lab building virtual machineCD linuxkernel/ -kernel linux-3.18. 6/arch/x86/boot/bzimage-initrd rootfs.img The kernel boots into the menu program. The following is a boot process that uses GBD to track the kernel:gdb (gdb) file Linux-3.18. 6/vmlinux # Targe remote before loading symbol table (GDB) in GDB interface target remote:1234 # To establish

Preparatory work for the first stage 1 Building the environment 1.1 Download the kernel source code and compile the kernelCreate a directory and enter the directory:Download Source:Unzip, and enter the directory: xz-d linux-3.18.6.tar.xzTAR-XVF linux-3.18.6CD linux-3.18.6Compile related files for the selected x86 schema:Compile:1.2 Making the root file systemCreate a new folder under the working directory:mkdir RootfsDownload the information provided

1 Environment PreparationOperating system: ubuntu10.10 32bit Desktop version installed under VMware.Build kernel version: linux-2.6.32.63Kernel directory:/home/wanchouchou/linuxkernel/linux-2.6.32.63For convenience, use chmod 777-r linux-2.6.32.63/to change all kernel files to full permissions so that you can modify the files in a non-root state to compile.2 adding system callsFirst enter the linux-2.6.32.6

Any operating system written in a high-level language, the kernel source code is always a small part of the code is written in assembly language. Readers who read the Unix Sys v source know that there are about 2000 lines of code written in assembly language in their core code of about 30,000 lines, There are less than 20 files with the extension. S and. m, most of which are the underlying programs for interrupts and exception handling, as well as pro

The kernel learning notes, since it is a note to remember the key things, assorted slowly again. Here are a few simple steps to compile the kernel: 1. Go to www.kernel.org download kernel 2. mkdir/usr/src/linux-2.6.37CP 2.6.37.tar.bz2/usr/src/linux-2.6.37 (just out) 3. The solution compresses the other situation not to consider, the concrete question concrete an

Any operating system written in a high-level language, the kernel source code is always a small part of the code is written in assembly language. Readers who read the Unix Sys v source know that there are about 2000 lines of code written in assembly language in their core code of about 30,000 lines, There are less than 20 files with the extension. S and. m, most of which are the underlying programs for interrupts and exception handling, as well as pro

First, the preparatory work 1. Download the latest kernel on the website Source Code : https://developer.nvidia.com/embedded/downloads#?tx= $software, L4T-TX1 2, ubuntu16.04 compilation environment preparation: Download two cross compiler Aarch64-linux-gnu and ARM-LINUX-GNUEABIHF, both compilers are required for cross-compilation, and can be downloaded on Linaro website: https://www.linaro.org/downloads/ 3, decompression

Fedora 20/21, delete old system kernel, fedora Kernel The kernel update speed of the Fedora system is very fast, which often leads to many versions during startup. If you do not clean up for a long time, the/boot may be fully occupied. The recent new Fedora 21 is even more likely to frequently upgrade the kernel. There

3.1. kernel architecture, 3.1 kernel architecture SELinux provides mandatory access control for all kernel resources. In his current format, SELinux is merged into the kernel through the LSM Framework. 3.1.1. LSM Framework The idea behind the LSM Framework is to allow the security module to be inserted into the

1, the function that prohibits kernel preemption is preempt_disable (), the method that allows kernel preemption is preempt_enable ()2, why call Preempt_disable () to close the preemption case before the real lockhttp://blog.csdn.net/kasalyn/article/details/11473885[CPP]View Plaincopy static inline void Raw_spin_lock (raw_spinlock_t *lock) { Preempt_disable (); Do_raw_spin_lock (lock);

Tags: http bootstra strip image 16px net BSP CSDN developmentObjectiveIn recent months, the Linux kernel has probably been studied, the following need to conduct in-depth detailed analysis. The main development Board of S3C2440 is a hardware entity. Probably includes the following content:1 bootloader analysis, to Uboot-based, combined with the specific development Board situation. My goal is to explain how Uboot works (to be honest, the analysis does

Deep understanding of the PHP kernel (1) and deep understanding of the php kernel. In-depth understanding of the PHP kernel (1), in-depth understanding of the php kernel as a simple and powerful language, PHP can provide a lot of language features applicable to the Web. Starting from practice, I deeply understand the p

Heavy-duty focus, in fact, is to implement a cottage version of Windows Peloader, overloading is actually a module to re-load a copy of the other memory, run it.The so-called kernel overload, is the kernel file that is: Ntkrnlpa.exe to load a copy to the memory, and run it, such a benefit can avoid all hooks, such as SSDT, Inlinehook, etc., the principle is the hook continueHook the main original