在内核代码init/main.c,首先会有少量用于初始化特定架构的代码,这部分代码在arch/<arch>boot和arch/<arch>kernel中,初始化架构结束后,start_kernel函数就会被调用,然后文件内的另一个函数do_basic_setup就会被调用。 /* * Ok, the machine is now initialized. None of the devices * have been touched yet,...
lk/target/init.c::__WEAK void target_early_init(void) lk/include/target.h::void target_early_init(void); MT6797: void target_early_init(void) { } void target_init(void) { }
平台相关初始化platform_early_init,lk/platform/init.c::__WEAKvoidplatform_early_init(void)lk/platform/mediatek/mt6797/platform.cplatform_early_init: voidplatform_early_init(void){ uart_init_early(); platform_ini
early_param 相关的是 init_call,对应于在系统启动过程对系统进行初始化的过程。 底层实现上,在内核镜像文件中,自定义一个段,这个段里面专门用来存放这些初始化函数的地址,内核启动时,只需要在这个段地址处取出函数指针,一个个执行即可。 Linux内核提供xxx_initcall_sync(fn)宏定义接口,驱动开发者只需要将驱动程序的...
2.1 early_ioremap_init 在setup_arch函数中,通过调用early_ioremap_init函数,来进行早期ioremap的初始化。 // file: arch/x86/kernel/setup.c/** setup_arch - architecture-specific boot-time initializations** Note: On x86_64, fixmaps are ready for use even before this is called.*/void__init...
原因如下：1、检查依赖项是否安装：如果serviceearly_init_sh脚本依赖于其他软件包或库，请确保这些依赖项已经安装。2、检查日志文件：检查系统日志文件，以查看是否有与serviceearly_init_sh相关的错误或警告信息。这有助于确定脚本无法启动的原因。3、检查脚本路径是否正确：请确保serviceearly_init_sh脚本...
* subsystems that request early init. 6 */ 7 int __init cgroup_init_early(void) 8 { 9 int i;10 atomic_set(&init_css_set.refcount, 1);11 INIT_LIST_HEAD(&init_css_set.cg_links);12 INIT_LIST_HEAD(&init_css_set.tasks);13...
};staticint__initsetup_early_printk(char*buf){ early_console = &early_console_dev;register_console(&early_console_dev);return0; }early_param("earlyprintk", setup_early_printk); 流程简介: 在bootargs 中添加 earlyprintk; 在内核启动进入C语言阶段,start_kernel->parse_early_param 就会第一时间解析...
dy: 5537653297, waiting time: [ 7.280703] c5 1 md: Skipping autodetection of RAID arrays. (raid=autodetect will force) [ 7.280740] c5 1 device-mapper: init: attempting early device configuration. [ 7.288468] c5 1 device-mapper: init: add...
If you are running earlyoom as a system service (through systemd or init.d), you can adjust its configuration via the file provided in /etc/default/earlyoom. The file already contains some examples in the comments, which you can use to build your own set of configuration based on the supp...