内核编译配置说明

原理

  在内核目录下,用kernel.config来设置内核编译配置信息,以类似解析toml文件的方式去解析该文件,然后接着去解析各模块下的d.config以获取feature的启用情况

示例

kernel.config

[[module.include]]
name = "init"
path = "src/init/"
enable = "y"
description = ""

[[module.include]]
name = "mm"
path = "src/mm/"
enable = "y"
description = ""
  • [[module.include]]: 将模块加入到include列表中

  • name: 模块名

  • path: 模块路径,存放着d.config

  • enable:

    • y: 启用,解析模块下的d.config

    • n: 不启用,不解析

  • description: 模块的描述信息

src/mm/d.config

[module]
name = "mm"
description = ""

[[module.include]]
name = "allocator"
path = "src/mm/allocator/"
enable = "y"
description = ""

[[module.features]]
name = "mm_debug"
enable = "y"
description = ""
  • [module]: 当前模块

    • name: 当前模块名称

    • description: 模块的描述信息

  • [[module.include]]: 当前模块下所包含的模块,与kernel.config下的相同

  • [[module.features]]: 当前模块下的feature

    • name: feature名

    • enable: 是否开启

      • y: 开启

      • n: 不开启

    • description: feature的描述信息

以下是其它模块下的d.config:

src/mm/allocator/d.config

[module]
name = "allocator"
description = ""

[[module.features]]
name = "allocator_debug"
enable = "y"
description = ""

src/init/d.config

[module]
name = "init"
description = ""

[[module.features]]
name = "init_debug"
enable = "y"
description = ""

上面所有已开启模块的d.config中的feature,会最终生成到内核目录下的D.config文件,即D.config是最终内核编译的配置,如下:

D.config

init_debug = y
allocator_debug = y
mm_debug = y