Method for starting embedded apparatus, and apparatus
Embodiments of the present disclosure provide a method for starting an embedded apparatus, and an apparatus, and are applied to the field of embedded technologies, so as to improve a start speed of an embedded apparatus. The method is: A development and compilation apparatus divides a program of a system of an embedded apparatus, where the divided program includes a fast start loader and program segments corresponding to different services. In this way, after compilation and linking are performed on the program segments obtained by division to generate a system image file of the embedded apparatus, the embedded apparatus may first load the fast start loader after downloading the image file, then load one or more services in the image file one by one based on service requirements of different services by using the fast start loader, and then run the one or more loaded services.
1. A method for starting an embedded apparatus in a start process, comprising:
loading a fast start loader in a system image file by using a system boot program, wherein the fast start loader is a kernel of the embedded apparatus and is first loaded;
running the fast start loader, wherein the fast start loader is configured to copy the system image file from a loading domain to an execution domain;
loading, based on service requirements of different services after running the fast start loader, one or more services corresponding to remaining image files in the system image file other than the fast start loader, and running the one or more loaded services, including
controlling the fast start loader to load a fast startup program segment in the system image file based on a start address of the fast startup program segment and a length of the fast startup program segment, wherein the fast startup program segment comprises a mission-critical service in the embedded apparatus, wherein the mission-critical service is determined based on service requirements, and wherein the mission-critical service is a designated service to be preferentially started;
running the mission-critical service;
subsequent to running the mission-critical service, controlling the fast start loader to load a non-fast startup program segment in the system image file based on a start address of the non-fast startup program segment and a length of the non-fast startup program segment, wherein the non-fast startup program segment comprises remaining services in the embedded apparatus other than the mission-critical service; and
running the remaining services.
2. The method of claim 1 , wherein controlling the fast start loader to load a fast startup program segment in the system image file comprises:
controlling the fast start loader to obtain the start address and an end address of the fast startup program segment in the system image file; and
controlling the fast start loader to obtain the length of the fast startup program segment based on the start address and the end address of the fast startup program segment.
3. The method of claim 1 , wherein controlling the fast start loader to load a non-fast startup program segment in the system image file comprises:
controlling the fast start loader to obtain the start address and an end address of the non-fast startup program segment in the system image file; and
controlling the fast start loader to obtain the length of the non-fast startup program segment based on the start address and the end address of the non-fast startup program segment.
4. An embedded apparatus, comprising:
at least one processor, a memory storing computer executable instructions, which when executed by the at least one processor, cause the at least one processor to perform operations, the operations comprising:
loading a fast start loader in a system image file by using a system boot program, wherein the fast start loader is a kernel of the embedded apparatus and is first loaded;
running the fast start loader, wherein the fast start loader is configured to copy the system image file from a loading domain to an execution domain; and
loading, by segments based on service requirements of different services after running the fast start loader, one or more services corresponding to remaining image files in the system image file other than the fast start loader, and running the one or more loaded services, including
loading a fast startup program segment in the system image file based on a start address of the fast startup program segment and a length of the fast startup program segment, wherein the fast startup program segment comprises a mission-critical service in the embedded apparatus, wherein the mission-critical service is determined based on service requirements, and wherein the mission-critical service is a designated service to be preferentially started;
running the mission-critical service;
subsequent to running the mission-critical service, loading a non-fast startup program segment in the system image file based on a start address of the non-fast startup program segment and a length of the non-fast startup program segment, wherein the non-fast startup program segment comprises remaining services in the embedded apparatus other than the mission-critical service; and
running the remaining services.
5. The embedded apparatus of claim 4 , wherein the fast start loader is configured to:
obtain the start address and an end address of the fast startup program segment in the system image file; and
obtain the length of the fast startup program segment based on the start address and the end address of the fast startup program segment.
6. The embedded apparatus of claim 4 , wherein the fast start loader is configured to:
obtain the start address and an end address of the non-fast startup program segment in the system image file; and
obtain the length of the non-fast startup program segment based on the start address and the end address of the non-fast startup program segment.