Embedded Linux operation system trimming customization method

Abstract

The invention discloses an embedded Linux operation system trimming customization method and belongs to the technical field of operation system trimming. The problems that an existing embedded Linux operation system code number based on a PowerPC hardware architecture is too large, the number of redundant modules is too large, and reading and modifying are not easy are solved. According to the technical scheme, an embedded Linux operation system based on the PowerPC hardware architecture is subjected to trimming and customization, the method comprises the steps that the embedded Linux operation system in the PowerPC hardware architecture is subjected to source code file level trimming; the embedded Linux operation system in the PowerPC hardware architecture is subjected to source code level trimming; source codes of the trimmed embedded Linux operation system are subjected to integral compiling, and embedded Linux operation system nucleus files are generated; and the compiled embedded Linux operation system nucleus files are used and are programmed into a storage of a main board in the PowerPC hardware architecture, then comprehensiveness testing is carried out, and whether the function or the performance of the trimmed embedded Linux operation system is normal is verified.

Description

technical field [0001] The invention relates to the technical field of operating system tailoring, in particular to an embedded Linux operating system tailoring customization method. Background technique [0002] PowerPC is a CPU with RISC architecture. PowerPC processor has very strong embedded performance because it has excellent performance, low energy consumption and low heat dissipation. The PowerPC processor has 32 (32-bit or 64-bit) GPRs (General Purpose Registers) and registers such as the PC (Program Counter, also known as IAR / Instruction Address Register or NIP / Next Instruction Pointer), LR (Link Register), CR ( Condition Register) and various other registers, and thirty-two 64-bit FPRs (floating point registers). [0003] The Linux operating system is a clone system of the UNIX operating system, which was born on October 5, 1991 (this is the first time it was officially announced to the outside world). Later, with the help of the Internet network, it has become ...

AI Technical Summary

Problems solved by technology

[0004] As hardware products based on PowerPC hardware architecture are widely used in network security, data storage and other fields, the requirements for embedded Linux operating system based on PowerPC hardware architecture are getting higher and higher. The amount of code in the Linux operating system is too large, there are too many redundant modules, and it is difficult to read and modify, so the operating system needs to be tailored and customized

The tailoring and customization of the existing operating system generally uses the development tools of the operating system for selective compilation, that is, only the required parts are compiled, but the unnecessary parts still exist as redundant codes. When an abnormality occurs in the application software, May enter the redundant code area, causing system exceptions

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