http://thinkiii.blogspot.jp/2014/02/arm32-linux-kernel-virtual-address-space.html   The 32-bit ARM CPU can address up to 2^32 = 4GB address*. It's not big enough in present days, since the size of available DRAM on computing devices is growing fast a…

墙外通道:http://thinkiii.blogspot.com/2014/02/arm64-linux-kernel-virtual-address-space.html Now let's talk about the Linux kernel virtual address space on 64-bit ARM CPU. You can find information about ARMv8 in ARM official website. http://www.arm.com/pr…

Memory Layout (Virtual address space of a C process) 分类: C语言基础2012-12-06 23:16 2174人阅读 评论(0) 收藏 举报 found a good example to demostrate the memory layout and its stack info of a user-mode process, only that this example is for Linux. But it is still wo…

在Linux中,给kernel传递参数以控制其行为总共有三种方法: 1.build kernel之时的各个configuration选项. 2.当kernel启动之时,可以参数在kernel被GRUB或LILO等启动程序调用之时传递给kernel. 3.在kernel运行时,修改/proc或/sys目录下的文件. 这里我简单讲的就是第二种方式了,kernel在grub中配置的启动参数. 首先,kernel有哪些参数呢? 在linux的源代码中,有这样的一个文档Documentation/kern…

转自:https://zohead.com/archives/linux-kernel-learning-memory-management/ 本文同步自(如浏览不正常请点击跳转):https://zohead.com/archives/linux-kernel-learning-memory-management/ 接着之前的 Linux kernel 学习步伐,来到极其重要的内存管理部分,继续本文内容,需要先了解内存寻址的基础知识,见之前的 [内存寻址] 博文. 1.内存页及内存区域: 正如…

kmalloc #include <linux/slab.h> void *kmalloc(size_t size,int flags); void kfree(void *addr); flags: GFP_ATOMIC: Used to allocate memory from interrupt handlers and other code outside of a process context.Never sleeps GFP_KERNEL: Normal allocation o…

转自:https://zohead.com/archives/linux-kernel-learning-memory-management/ 本文同步自(如浏览不正常请点击跳转):https://zohead.com/archives/linux-kernel-learning-memory-management/ 接着之前的 Linux kernel 学习步伐,来到极其重要的内存管理部分,继续本文内容,需要先了解内存寻址的基础知识,见之前的 [内存寻址] 博文. 1.内存页及内存区域: 正如…

In this blog post we'll go over a Linux kernel privilege escalation vulnerability I discovered which enables arbitrary code execution within the kernel. The vulnerability affected all devices based on Qualcomm chipsets (that is, based on the "msm&quo…

http://blog.csdn.net/blizmax6/article/details/6747601 linux内核调试指南 一些前言 作者前言 知识从哪里来 为什么撰写本文档 为什么需要汇编级调试 ***第一部分:基础知识*** 总纲:内核世界的陷阱 源码阅读的陷阱 代码调试的陷阱 原理理解的陷阱 建立调试环境 发行版的选择和安装 安装交叉编译工具 bin工具集的使用 qemu的使用 initrd.img的原理与制作 x86虚拟调试环境的建立 arm虚拟调试环境的建立 arm开发板调试环…

## Linux kernel memory-faq.txt What is some existing documentation on Linux memory management? Ulrich Drepper (the ex-glibc maintainer) wrote an article series called "What every programmer should know about memory": Part 1: http://lwn.net/Artic…