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Firmware modification method and device, computer readable storage medium and equipment

A firmware and file technology, applied in the field of devices and firmware modification methods, can solve the problems that users cannot modify functional requirements and do not disclose PMON firmware to the outside world.

Pending Publication Date: 2021-04-30
SHANGHAI EMBEDWAY INFORMATION TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, firmware manufacturers (such as hardware board manufacturers) do not disclose the source code of PMON firmware to the public, and users cannot use the source code to modify the firmware to fulfill their own functional requirements

Method used

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  • Firmware modification method and device, computer readable storage medium and equipment
  • Firmware modification method and device, computer readable storage medium and equipment
  • Firmware modification method and device, computer readable storage medium and equipment

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Embodiment Construction

[0055] The following will clearly and completely describe the technical solutions in the embodiments of the application with reference to the drawings in the embodiments of the application. Apparently, the described embodiments are only some of the embodiments of the application, not all of them. Based on the embodiments in this application, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the scope of protection of this application.

[0056] The process described in this application is applied to a firmware modification system based on Loongson (a kind of domestic processor), specifically, it can be executed by the processor to realize the modification of the firmware when the source code of the firmware is not disclosed, so as to satisfy users functional requirements.

[0057] Such as Figure 1a As shown, taking PMON firmware (its source code is DTS) as an example, a schematic diagram of a firmware modification ...

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Abstract

The invention discloses a firmware modification method and device, a computer readable storage medium and equipment, and the method comprises the steps: carrying out the analysis of an executable file of firmware, and obtaining a memory address of a source code; generating a source code file based on the data written in the memory address of the source code; changing the source code file according to the function demand information input by the user; compiling the changed source code file to obtain a coded file; and based on the memory address of the source code, searching an original coded file of the firmware, and replacing the original coded file of the firmware with the coded file. Visibly, by utilizing the method provided by the invention, the firmware can be modified under the condition that the firmware source code is not public, so that the firmware has functions required by a user.

Description

technical field [0001] The present application relates to the technical field of electronic equipment, and in particular to a firmware modification method, device, computer-readable storage medium and equipment. Background technique [0002] There are a large number of customer-customized hardware boards based on Loongson (a domestic chip) in the field of switches and servers on the market. Many hardware driver-related functions only need to change the PMON firmware (PMON firmware is a part of the functions of BIOS and boot loader. Open source code software, mostly used in embedded systems), the device tree source code (DeviceTree Source, DTS) in it is enough. The so-called device tree source code is a data structure describing the hardware. However, firmware manufacturers (such as hardware board manufacturers) do not disclose the source code of PMON firmware to the public, and users cannot use the source code to modify the firmware to fulfill their own functional requireme...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06F8/70G06F8/53G06F8/41
CPCG06F8/70G06F8/53G06F8/447Y02D10/00
Inventor 顾会光
Owner SHANGHAI EMBEDWAY INFORMATION TECH
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