JPS62224825A - Program correcting system - Google Patents

Abstract

PURPOSE:To reduce time for correcting work by preparing an execution form program including a correcting method instruction module that instructs method of correction in a correcting process module. CONSTITUTION:A program module group of an object form supplied to users are stored in a program module group storing file 1. Correction instruction data group consisting of the position of correction and the content of correction are inputted from a correction instruction inputting section 2 and converted to the data group of a form that can be processed easily by a correction process module by a correction instruction preparing section and stored in a corresponding file 4 as a correction instruction module. A module uniting section 6 selects and unites the module group that conform to the request of users from files 1 and 4 in accordance with the uniting instruction of a uniting instruction inputting section and prepares an execution form program and stores it in a corresponding storage file 7.

Description

DETAILED DESCRIPTION OF THE INVENTION Field of the Invention The present invention relates to a method for modifying a program executed in a computer system.

Conventional technology In general, in electronic computer systems, a group of program modules consisting of required modules, optional modules, alternative modules, etc. is prepared in advance in order to avoid increasing the program size and meet the needs of a wide variety of users. A modular structure method is adopted in which an optimized executable program is created by selecting and combining these programs in accordance with the user's needs.

Conventionally, in order to modify a program having such a modular structure, a method has been adopted in which each module is modified at the source level, or a program patch method is used in which the program is modified at the executable program level.

Problems to be Solved by the Invention Of the above program modification methods, those that modify the program at the source level place a heavy burden on the user who performs the modification, and also require the user to be provided with the source module. This also raises the issue of program confidentiality.

Furthermore, in the program/patch method, the selection and combination status of modules differs for each user, so it is necessary to manage the status for each user. For this reason, there is a problem in that as the number of users increases, the effort required for management becomes excessive and maintenance efficiency is significantly reduced.

Configuration of the Invention Means for Solving the Problems The program modification method of the present invention that solves the problems of the prior art described above includes a modification processing module that performs modification processing for other modules and instructions for a modification method to this modification processing module. Create an executable program including a modification method instruction module, and when running this executable program,
The program is configured to be modified by first executing the modification processing module portion.

Hereinafter, the operation of the present invention will be explained in detail together with examples.

Embodiment FIG. 1 is a block diagram showing the configuration of the parts related to this embodiment of a computer system to which an embodiment of the present invention is applied, 1 is a program module group storage file, 2 is a modification instruction 3 is a modification instruction module creation section; 4 is a modification instruction module storage file; 5 is a connection instruction input section; 6 is a module connection section; 7 is an executable program storage file; 8 is an execution section.

The program/module group storage file 1 stores a group of object-format programs/modules provided to the user, and each of them is selected/combined and optimized in the module combining unit 6 according to the user's request. An executable program is created.

FIG. 2 is a conceptual diagram illustrating the contents of the program module storage file 1 shown in FIG. Each module is
Definition external name ABC...Y is set at address zero of module white sum. Here, the module with the definition external name Y is a modification processing module for performing modification processing on other modules AW.

In order to create a correction instruction module that instructs the correction processing module on a correction method, a correction instruction data group consisting of correction positions and correction contents is input from the correction instruction input section 2, and the correction processing module is executed by the correction instruction creation section 3. It is converted into a data group in a format that is easy to process, and stored in the corresponding file 4 as a modification instruction module.

That is, each modification instruction data in the modification instruction module consists of a modification position and modification contents as shown in FIG. relative number within,
It is made up of the ground.

The content of the modification differs depending on whether the instruction part or the data part is modified. When modifying the instruction part, it is necessary to associate the reference external name with the relative address within the module, as in the case of the modification position for the address part within the instruction.

When modifying the data section, the modification content only needs to be the data value.

In the example of actual values shown in Figure 3, the contents of the relative address 300 of the module with the definition external name A are modified to a jump instruction to the relative address 250 of the module with the definition external name, and the data value is 1 is shown.

The module combination unit 6 selects and combines a group of modules that match the user's request from the storage files 1 and 4 according to the combination instruction from the combination instruction input unit 5, creates an executable program, and transfers this to the corresponding storage file. Store in 7.

FIG. 4 shows an example of an executable program optimized according to the user's request. Definition external names A, C, D selected from program module group storage file 1
,,F...W modules and the modification processing module with the definition external name Y, and the modification instruction module with the definition external name Z selected from the modification instruction module storage file 4 are combined to create this executable program. There is. Furthermore, the module coupling section 6 establishes a relationship between the reference external name in the modification instruction module described in FIG. 3 and the defined external name in this module. That is, the actual address is determined, and the result is stored as the modification instruction section shown in FIG.

When the execution forming program is read from the corresponding file 7 and executed by the execution section, the modification processing section is executed first, thereby completing the modification of the program.

Next, execution of this modified program begins.

Effects of the Invention As explained in detail above, the modification method of the present invention is an executable program that includes a modification processing module that performs modification processing on other modules and a modification method instruction module that instructs this modification processing module on a modification method. Because it is configured to create , the effort required for modification work is greatly reduced compared to the conventional method in which modifications are made directly to individual modules.

Furthermore, since the modification method of the present invention is configured so that the program to be modified itself has a self-modification function, the effort required to manage and execute the program is reduced compared to the case where a dedicated program for modification is prepared separately. Ru.

Furthermore, since the modification method of the present invention is configured to perform self-modification when the program is executed, the computer system first executes only the self-modified part to create a modified executable program, and a part of this is saved as a file. Unlike the case where the modified executable program is saved and executed from a file one after another, there is no need to execute part of the program just to make corrections. As a result, the usage efficiency of the electronic computer system is also improved.

[Brief explanation of drawings]

FIG. 1 is a block diagram showing the configuration of an electronic computer system to which a program modification method according to an embodiment of the present invention is applied, and FIGS. 2 to 4 show a group of program modules, modification instruction modules, and execution in the above embodiment. FIG. 2 is a conceptual diagram illustrating the structure of a formal program. ■...Program module group storage file, 2...
Correction instruction input unit, 3... Correction instruction module creation unit, 4
... Modification instruction module storage file, 5. Connection instruction input section, 6. Module connection section, 7. Executable program storage file, 8. Execution section.

Claims (1)

[Claims] In a computer system in which an executable program is created and executed by selecting and combining only necessary modules from a plurality of modules, a correction processing module that performs correction processing on other modules, and this correction processing module The executable program is created including a modification instruction module that instructs a modification method, and when the executable program is executed, the program is modified by first executing the modification processing module part. Program modification method.