摘要： userdata.img里的block count等于userdata partition size/block_size build/core/Makefile define build-userdataimage-target $(call pretty,"Target userdata fs 阅读全文

摘要： 注册tick event handler为tick_handle_periodic，在每个系统tick到来时将回调此tick event handler： clockevents_register_devicetick_check_new_devicetick_setup_devicetick_se 阅读全文