Linux系统x86架构初始化流程

开头路径中的“.”代表“arch/x86/”

1. .boot/header.S: start_of_setup

2. .boot/main.c:  main() -> pm.c: go_to_protected_mode()

3. .boot/pmjump.S: protected_mode_jump

4. .boot/compressed/head_32.S: startup_32() -> decompress_kernel()

5. .kernel/head_32.S: startup_32() -> head32.c: i386_start_kernel()

6. init/main.c: start_kernel() -> rest_init()

7. rest_init()先new thread kernel_init()，后执行kernel_idle();

8. kernel_init() -> init_post() -> kernel_execve("/sbin/init")[PS.不尽然，可以传递init启动参数]