JPH05189209A - Initial program loading system - Google Patents

Abstract

PURPOSE:To load an initial program without generating a macro definition group where a necessary function is adjusted to the constitution of a system or generating the system again for regenerating the system when the constitution of the system is altered. CONSTITUTION:A program 21 processing a standard function and a program 22 processing an option function are stored in one library 20 without gathering them. A loading control processing part 11 loads the program of the necessary function in a main storage 30 at the time of loading the initial program. At that time, a relocation processing part 13 settles the reference of addresses between the loaded programs and the program is set to be ma loaded program 31.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an initial program loading method, and more particularly, to an initial program loading method for loading an operating system in a computer processing system when the system starts.

[0002]

2. Description of the Related Art Generally, a computer processing system is
When there is a change in the system configuration due to changes in input / output devices, addition of new functions, etc., system generation creates a macro definition group that matches the required functions with the user's system configuration and creates an operating system accordingly. However, the entire operating system is being loaded when the system starts.

FIG. 6 is a diagram for explaining the system creation and the initial program loading according to the prior art.

This prior art system uses a program stored in the library when a system is first introduced or when the system configuration is changed, and a system resident volume storing an operating system having necessary functions is created by the system generator. Created by the
The entire operating system is loaded into the main memory when the system is started.

Therefore, the above-mentioned method is such that, when the system configuration is changed, or when a new function is added, the macro definition group in which necessary functions are matched to the system configuration by system generation again. I had to create an operating system in the system resident volume accordingly.

As a conventional technique that does not require the above-described system generalization, for example, the technique described in Japanese Patent Laid-Open No. 64-76252 is known. In this conventional technique, an input / output device that is expected to be added in the future is registered as a reserved device in the I / O table in advance. Therefore, it is necessary to load unused information into the main storage device. It is a thing.

[0007]

The conventional technique for creating an operating system having the system configuration with the necessary functions by the above-mentioned system generation is designed to perform the system generation again when the system configuration is changed. , There is a problem that it is necessary to create a macro definition group that matches the necessary functions to the system configuration, which is a heavy burden for the system creator, and it is necessary to re-perform the system. It has a problem that it takes a long time.

Further, the technique described in the above publication has a problem that the storage device is wasted because the unused information must be loaded into the main storage device.

The object of the present invention is to solve the above-mentioned problems of the prior art, and even when the system configuration is changed, macros are provided to provide necessary functions for system generation again in accordance with the system configuration. It is to provide an initial program loading method that does not need to create a definition group.

[0010]

According to the present invention, the object is to store a program for processing standard functions and a program for processing optional functions in one library in a computer processing system without collecting them. This is achieved by loading a program having a necessary function in the library when the initial program is loaded and resolving address references between the loaded programs.

[0011]

By executing the system generation, the program for processing the standard function and the program for processing the optional function are stored in one library. According to the initial program loading method of the present invention, a standard function processing program stored in one library and a program selected from the optional function processing programs are loaded into the main memory, and an address reference is made between the loaded programs. To solve.

As described above, according to the present invention, a macro definition group suitable for the system configuration is created for system generation, or the system configuration is changed without performing system generation again. You can

[0013]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the initial program loading method according to the present invention will be described in detail below with reference to the drawings.

FIG. 1 is a diagram for explaining the outline of system creation and initial program loading according to one embodiment of the present invention, FIG. 2 is a block diagram showing the configuration of one embodiment of the present invention, and FIG. 3 is for a library. FIG. 4 is a diagram illustrating loading of a program into the main memory, FIG. 4 is a diagram illustrating states of a control table before and after updating, and FIG. 5 is a diagram illustrating an example of option information. 1 to 3, 1 is a console, 2 is a magnetic disk, 3 is a CPU, and 10 is an IP.
L control processing unit, 11 selection control processing unit, 12 loading control processing unit, 13 relocation processing unit, 20 library, 21 standard function processing program, 22 optional function processing program, 30 main memory, 31 main memory It is a program loaded into memory.

One embodiment of the present invention, as shown in FIG.
Using all programs stored in the library,
Create a system resident volume that stores the operating system corresponding to each of these program functions by system generation processing,
Only the necessary functions of the operating system are loaded into the main memory when the system is started.

As a result, according to the embodiment of the present invention, it is not necessary to prepare an option for the system generation processing, and it is not necessary to execute the system generation processing every time the system configuration is changed. All you have to do is change the options when you start the system.

In the embodiment of the present invention shown in FIG. 2, the selection control processing unit 11 includes a console 1, a magnetic disk 2,
The corresponding optional function processing program is selected based on the optional information input from the CPU 3 or the like.

As shown in FIG. 5, the option information is specified in a format of using / not using the option function, specified by an operator's input from the console 1, or stored in the magnetic disk 2 in advance.
As an optional function of such parameter input,
It has a dump function, TSS function, and the like. Also, the option information is not input as a parameter, but the CPU 3
It is also possible to input by a hardware mechanism such as. An example of this is the CPU operating mode.

The loading control processing unit 12 checks the correspondence between the sections of the standard function processing program 21 and the option function processing program 22 in the library 20 based on the option information from the selection control processing unit 11, and after checking. Each section is loaded into the main memory 30.

The library 20 is a magnetic disk storing a standard function processing program 21 and an optional function processing program 22, and corresponds to the system resident volume shown in FIG. And in the library 20,
A program as an operating system corresponding to each program created in advance by the generation is separately stored in a standard function processing program 21 and an optional function processing program 22.

The relocation processing unit 13 includes the standard function processing program 2 selected by the selection control processing unit 11.
The address reference between each section of 1 and the optional function processing program 22 is resolved and the program operates normally.

The standard function processing program 21 and the optional function processing program 22 selected by the selection control processing unit 11 are loaded into the main memory 30 by the loading control processing unit 12, and the relocation processing unit 1
The processing program 31 in which the program whose address reference is resolved by 3 is loaded is set.

The IPL control processing unit 10 is a control unit for operating the selection control processing unit 11, the loading control processing unit 12, and the relocation processing unit 13 efficiently.

Next, the loading of each section will be described with reference to FIG. In FIG. 3, A, B, X, Y, and Z of the standard function processing program 21 are section names, D, E, and W are entry names, and A (E) to A (A) are address constants. A and B of the optional function processing program 22 are section names having the same names as A and B of the standard function processing program 21, and C is a different section name. That is, when the option information is specified, sections A and B are replaced sections, and section C is an added section.

If there is no option information, the selection control processing unit 11 does not notify the loading control processing unit 12 that the optional function processing program 22 is necessary. Only each section is loaded into the main memory 30. Therefore, each section of the standard function processing program 21 and each section loaded in the main memory 30 are exactly the same.

However, if the option information is present, the selection control processing section 11 notifies the loading control means 12 of the optional function processing program 22.
The loading control processing unit 12 compares each section of the standard function processing program 21 and each section of the option function processing program 22. As a result, if there is the same section name, the section of the option function processing program 22 is selected. To load. In the case of the example in FIG. 3, the loading control processing unit 12 loads the sections A and B of the optional function processing program 22 without loading the sections A and B of the standard function processing program 21.

FIG. 4 shows an example of a control table for merging sections of different programs stored in one library.

In FIG. 4, the control table 21a is a standard function processing program 21 when there is no option information.
Control table 21 for loading
Reference numeral b is a table for loading the standard function processing program 21 when there is option information, and control table 22a is a table for loading the optional function processing program 22.

Normally, the control table includes the control table 2
As shown in 1a and the control table 22a, the section name, the size of the section for each entry name, the relative position in the program, and the section number to which the entry belongs are set.

In the embodiment of the present invention, when there is option information, the control table 21a and the control table 22a are merged to create the control table 22b. For this reason,
In the control table 22b, the section A to be replaced,
Information for referring to the control table 22a is set in the portions B and D.

As described above, according to the present invention, the concept of the standard function and the optional function is introduced, and the option information is used to merge the sections of different programs stored in one library. ,
The configuration of the system can be changed without performing the system generation process of creating a program in which necessary functions are summarized.

[0032]

As described above, according to the present invention, when changing the system configuration, the system configuration can be changed at the next system start without performing the system generation process.

Further, according to the present invention, since only the program for processing the necessary function can be loaded into the main memory, the efficiency of use of the main memory can be improved and the performance of the computer processing system can be improved. Can be improved.

[Brief description of drawings]

FIG. 1 is a diagram illustrating an overview of system creation and initial program loading according to an embodiment of the present invention.

FIG. 2 is a block diagram showing a configuration of an exemplary embodiment of the present invention.

FIG. 3 is a diagram illustrating loading of a program from a library to a main memory.

FIG. 4 is a diagram illustrating states before and after updating a control table.

FIG. 5 is a diagram illustrating an example of option information.

FIG. 6 is a diagram for explaining system creation and initial program loading according to a conventional technique.

[Explanation of symbols]

 1 ... Console 2 ... Magnetic disk 3 ... CPU 10 ... IPL control processing unit 11 ... Selection control processing unit 12 ... Loading control processing unit 13 ... Relocation processing unit 20 ...・ Library 21 ・ ・ ・ Standard function processing program 22 ・ ・ ・ Option function processing program 30 ・ ・ ・ Main memory 31 ・ ・ ・ Program loaded in main memory

Claims (1)

[Claims] 1. A computer processing system comprising a central processing unit, a main memory, and a system resident volume storing an operating system, and a program for processing a standard function as the operating system in the system resident volume, A program for processing an optional function is stored, and a program selected by a selection control processing unit for selecting a program for processing an optional function is loaded by a loading control processing unit, and a program and an optional function for processing a standard function are stored. An initial program loading method characterized in that an address reference to a program for processing a program is resolved by a relocation processing unit.