Chapter 11. Data Types in the Kernel Before we go on to more advanced topics, we need to stop for a quick note on portability issues. Modern versions of the … - Selection from Linux Device Drivers, 3rd Edition [Book]
[ARM] mm 5: Use mem_types table in ioremap We really want to be using the memory type table in ioremap, so we only have to do the CPU type fixups in one place. Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk> Diffstat (limited to 'arch/arm/mm/mm.h') -rw-r--r-...
Q: I'm new in kernel development. Could you tell me or give me some materials to read that why we need to align the size of IOCTL structures to 64bit? I can understand if we're working in a 64bit kernel but why we need to do this if we're in a 32bit arm kernel? Besides, ...
Sockets are complex. Linux uses socket files to make the communication process more manageable. Socket files allow applications on the local system to exchange data without going through the complex process of networking and sockets. Socket files are special files that use a file name as their add...
linux更新显卡驱动提示Multiple kernel module types are available for this sys,介绍NVIDA几乎与Windows一样,通过其专有的驱动程序支持Linux。也就是说,NVIDIA长期以来一直是Linux游戏的go-to选择,这已经不是什么秘密了。不幸的是,即使驱动程序很好地支持Linux,但在
4. Linux Shell Functions A shell function is a group of commands that are executed collectively within the current shell. Functions help to carry out a specific task in a shell script. The conventional form of writing shell functions in a script is: ...
kernel是一个支持很多平台很多架构的OS,不同的架构上,很多的数据结构都是不同的,如何保证kernel能兼容多个架构,这就得益于kernel良好的数据结构设计。 kernel中各种各样的数据结构,主要三类: 1, int等标准的C类型 2, 表明大小或者长度的类型,如u32等
就算没有Sparse带来的影响,我们也不能和__kernel一样简单的认为__user什么都不是。因为还有一个STRUCTLEAK_PLUGIN宏。这个宏是自 Linux 内核版本 5.1 开始引入的一个功能,具体来说,这个功能会在函数入口处对带有 __user 属性的结构体进行零初始化。__user 属性通常用于标识指针指向用户地址空间的内存。通过对这些...
Linux provides the flexibility to make kernel modifications, which cannot be done with Windows. However, because you can make kernel modifications to Linux, you may need specialized expertise to maintain the production environment. Windows offers the advantage of a stable platform, but it is not as...
* in the page cache, it is at a file offset which is a multiple of that * power-of-two. It may be mapped into userspace at an address which is * at an arbitrary page offset, but its kernel virtual address is aligned * to its size. */ struct folio { /* priv...