JPH03166624A - Patch managing system - Google Patents

Abstract

PURPOSE:To execute the load module in accordance with use by selecting a patch reflected on an execution format program for each separate use at the time of loading the load module to a virtual storage space. CONSTITUTION:A number deciding means by patch use 2-1 inputs an applicable patch instruction containing a patch identifier, and decides a patch separate use number corresponding to the patch identifier by referring to a patch contents store area 7, and an area input means 2-2 inputs an area in a segment area 5 of a load module 4. An execution format conversion area deciding means 2-3 decides an area converted to an execution format, based on whether an area inputted by the area input means 2-2 has other number by patch use than the number by patch use decided by the number deciding means by patch use 2-1 or not. Subsequently, an execution format converting means 2-4 converts the decided area to the execution format. In such a way, the load module 4 is executed in accordance with use.

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to patch processing for a load module executed on a computer system that uses segmentation as a virtual storage space addressing method, and particularly to a patch management method.

[Conventional technology]

Conventionally, when patching a load module in a computer system that uses segmentation for virtual storage space addressing, when a load module modified by a patch is executed, all the load modules are unconditionally deleted when the load module is loaded into the virtual storage space. The patch was reflected in the executable program.

(Problem to be Solved by the Invention) In the conventional Basochi management method described above, when a load module modified by a patch is executed, all patches are unconditionally reflected in the executable program when the load module is loaded. Therefore, if a load module is used for multiple purposes, it has the disadvantage that it is necessary to maintain multiple load modules with patches registered for each purpose in the library. In view of the above-mentioned points, an object of the present invention is to provide a patch management method that allows patches to be reflected in an executable program when loading a load module into a virtual storage space to be selected for each purpose while managing patches collectively. It is about providing.

[Means to solve the problem]

The patch management method of the present invention inputs a patch instruction consisting of patch contents and a patch identification name to a load module in patch processing to a load module on a library in a computer system that uses segmentation for virtual storage space addressing. A patch instruction input means generates a bunch application number based on the patch identification name input by the patch instruction input means, stores the correspondence between the patch identification name and the patch application number in a patch content storage area, and stores the bunch application number. a patch registration unit including a pasochi information additional registration means for additionally registering patch information consisting of a separate number and a patch image generated from the patch contents as an area in segment ilfM of the load module; and an application patch instruction including a patch identification name. patch application number determination means for inputting a patch application number and determining a patch application number corresponding to the patch identification name by referring to the patch content storage area; Executable format conversion that determines an area to be converted into an executable format based on whether or not the area input by the area input means has a patch usage number other than the patch usage number determined by the patch usage number determination unit. It has a loading section including an area determining means and an executable format converting means for converting the area determined by the executable format conversion area determining means into an executable format.

[Effect]

In the patch management method of the present invention, the patch instruction input means inputs a patch instruction consisting of patch contents and a patch identification name to the load module, and the patch information addition registration means inputs a patch instruction based on the patch identification name input by the patch instruction input means. Generates a patch usage number, stores the correspondence between the patch identification name and the patch usage number in the patch content storage area, and loads Basoch information consisting of the patch usage number and the patch image generated from the patch content into the module. The patch application number determining means inputs the applied patch instruction including the pliers identification name, refers to the patch content storage area, and determines the patch application number corresponding to the patch identification name. The area input means inputs an area in the segment area of the load module, and the execution format conversion area determination means determines that the area input by the area input means is the patch usage number determined by the patch usage number determination means. The area to be converted into an executable format is determined based on whether or not the area has a patch usage number other than the above, and the executable format conversion means converts the area determined by the executable format conversion area determination means into an executable format.

〔Example〕

Next, the present invention will be explained in detail with reference to the drawings. FIG. 1 is a block diagram showing the structure of a patch management method according to an embodiment of the present invention. The patch management method of this embodiment consists of a patch registration unit 1 that registers a patch image to be applied to a load module 4 on a library 3 together with a patch application number as an area 6 in a segment area 5 in the load module 4; The main parts of the program include a load unit 2 that reflects a patch image with a specified patch usage number from among the plurality of patch images registered in 4 in the executable program 9 and loads it into the virtual storage space 8; has been done.

The patch registration unit 1 includes a patch instruction input means 1-1 for inputting a patch instruction 10 (see FIG. 3) consisting of patch contents and a patch identification name to the load module 4, and a patch instruction input means! A patch usage number is generated based on the patch identification name input in step -1, and the correspondence between the patch identification name and the patch usage number is stored in the patch content storage area 7. patch information additional registration means 1-2 for additionally registering patch information consisting of a patch image to be added as an area 6 in the segment area 5 of the load module 4; The loading unit 2 includes an application patch instruction 11 including a patch identification name.
(see FIG. 4) and refers to the patch content storage area 7 to determine the bunch usage number corresponding to the patch identification name; area input means 2-1 for inputting area 6; and area 6 input by area input means 2-1 is a patch application number other than the patch application number determined by patch application number determination means 2-1; Executable format conversion area determination 1,000 steps 2-3 determines area 6 to be converted to an executable format based on whether the area 6 has and an executable format converting means 2-4.

The load module 4 includes a plurality of segment areas 5 consisting of the same number of areas 6 as the number of areas, and a patch content storage area 7 in which a plurality of entries consisting of patch application numbers, patch identification names, and patch contents are stored. It is included.

As shown in FIG. 2, each area 6 includes a patch application number, a segment} if JT area, and a relative address from the beginning of the area. It consists of the number of data repetitions, the size of the initial value of the data, and the initial value of the data. Note that in the original area 6 of the load module 4 that has not been additionally registered for the load module 4, the patch application number is "00".

Next, the operation of the patch management system of this embodiment configured in this manner will be described.

In addition, when explaining the specific operation, a certain segment HI
Area 5 (hereinafter referred to as segment area A to distinguish this segment area 5 from other segment areas 5)
is composed of a plurality of areas 6 (hereinafter referred to as areas A1 to 71.n (n is a positive integer) to distinguish each area 6 from each other).

In addition, as shown in FIG. 3, the patch content storage area 7 contains three patch contents with patch usage number "01", which is a function change patch related to function copy, and function DUMP.
It is assumed that one patch with patch usage number "02", which is a modified patch related to the above, has already been registered.

(1) First, the processing of the Ba Nochi registration unit 1 will be explained with reference to FIG.

For example, in order to add a function change patch related to function COPY, the patch contents and Ba Nochi identification name "change the relative address from the beginning of "segment Bil area A" from the position "100" to the characters "AAAA". COPY-4
” is input into the patch registration unit 1, the patch instruction input means 1-1 inputs the patch instruction l
Enter O to transfer control to patch information additional registration 1000 steps 1-2.

The patch information additional registration means 1-2 refers to the patch content storage area 7 and recognizes the patch identification names ``copy-i~3'' that have the same keyword as the keyword ``COPY'' of the patch identification name ``COPY4''. and the patch usage number that is the same as the recognized patch identification name "COPY-1~3"
01" is the patch usage number for the patch content, Ba Nochi usage number "01", patch identification name "COPY-4', and patch content" segment area A, too, AAAA.
” is additionally registered in the patch content storage area 7.

Next, the patch information additional registration means 1-2 inputs the segment area A, and from the patch contents inputted by the patch instruction input means 1-1, the patch application number "01". Area An+ consisting of a relative address from the beginning of the segment area "100", the number of data repetitions "1", the initial data size "4", and the initial data value "AAAA"
1 is generated, this area An+l is additionally registered in the segment area A, and the number of areas is incremented by one.

As described above, the load module 4 in which the patch is registered is disciplined.

(2) Next, the processing of the loading section 2 will be explained with reference to FIG. Here, an example will be described in which only a patch that has changed the function COPY is reflected in the executable program 9, for example, in order to test whether the function COPY that has been changed by the patch operates correctly.

Keyword of patch identification name for function COPY only
When the general patch instruction 11 specifying ``copy'' is input, the patch application number determining means 2-1 refers to the patch content storage area 7 and selects a bunch having the same keyword as the keyword ``COPY''. Identification name “COPY-1~4”
, and determines the patch usage number "01", which is the same as the patch identification name "COPY-1 to 4", as the patch usage number of the applied patch.

Next, the area input stage 2-2 inputs the area 6 in the segment area A of the load module 4 and passes control to the execution format conversion area determining means 2-3.

Executable format conversion area determination stage 2-3 determines whether or not the input area 6 is to be converted into an executable format. For example, if area A1 is input, area A1
Since A1 is not an area that has been additionally registered as a patch (because the patch usage number is "00"), the executable format conversion area determining means 2-3 determines that area A1 should be converted to an executable format, and executes the executable format conversion. Control is passed to means 2-4.

The executable format conversion means 2-4 converts the relative address from the beginning of the segment}TiI area to "0" and the number of data repetitions to "16".
Convert the patch image of area A with ", initial data size" 12 and initial data value "B" into an executable format, and output data 3BBBBBBBBBBBBBBB from the beginning of segment area A in virtual storage space 8. .Furthermore, when area An is input, patch usage number "02" of area An is changed to patch usage number "O" determined by patch usage number determination means 2-1.
l" (because the patch usage number is "02"), the executable format conversion area determination means 2-3 determines that the conversion to the executable format is not to be performed, and returns control to the area input means 2-2. .

Furthermore, when area An+1 is input, the patch usage number "01" of area An+1 matches the patch usage number "01" determined by the patch usage number determining means 2-1, so the execution format Conversion area determining means 2-3 determines that area An+1 should be converted into an executable format, and passes control to executable format converting means 2-4.

The execution format conversion means 2-4 converts the relative address "100" from the beginning of the segment. Data repetition count “1”, data initial value size “4”, and data initial value “A”
Convert the patch image in area An+1 of ``AAA'' into an executable format, and download the data ``AA'' from the position whose relative address is ``100'' from the beginning of segment area A in virtual storage space 8.
AA" is output. As described above, the load unit 2 loads the executable program 9 to which only the patch that changed the function copy is reflected into the virtual storage space 8, and outputs the function CO that was changed by the bunch.
You can test whether PY is working correctly. [Effects of the Invention] As explained above, the present invention enables, when a load module modified by a patch is executed, to select a patch to be reflected in an executable program according to the purpose when loading the load module into a virtual storage space. This has the effect that the load module can be easily executed according to the purpose.

Furthermore, since there is no need to maintain and manage multiple load modules and patch images for each purpose, there is an effect that the file capacity of the library can be reduced.

[Brief explanation of the drawing]

FIG. 1 is a block diagram showing the configuration of a patch management system according to an embodiment of the present invention, and FIG.
Figure 3 is a diagram showing a specific operation example of the patch registration section in Figure 1, and Figure 4 is a diagram showing a concrete operation of the load section in Figure 1. It is a diagram showing an example. In the figure, 1... Patch registration section, 1-1. Patch instruction input means, 1-2. Patch information addition registration means, 2. Loading section, 2-1. Patch application number determination means, 2- 2. Area input means, 2-3 2-4 3 ・ ・ 4 ・ ・ 5 ・ ・ 6 ・ ・ 7 ・ ・ 8 ・ ・ 9 ・ ・ 1 0 ・ 11 ・ ・Execution format conversion area determination means, ・Execution format conversion Means: - library; - load module; - segment 1 area; - area; - patch content storage area; - virtual storage space; - executable program; - patch instruction; - application patch instruction.

Claims (1)

[Claims] A patch instruction for inputting a patch instruction consisting of patch contents and a patch identification name to a load module in patch processing for a load module on a library in a computer system that uses segmentation for virtual storage space addressing. A patch usage number is generated based on the input means and the patch identification name inputted by the patch instruction input means, and the correspondence between the patch identification name and the patch usage number is stored in the patch content storage area, and the patch usage number is generated. and a patch information additional registration means for additionally registering patch information consisting of a patch image generated from the patch contents as an area in the segment area of the load module, and an application patch instruction including a patch identification name is input. a patch application number determining means for determining a patch application number corresponding to the patch identification name by referring to the patch content storage area; an area input means for inputting an area in the segment area of the load module; executable format conversion area determination for determining an area to be converted into an executable format based on whether or not the area input by the patch usage number determination means has a patch usage number other than the patch usage number determined by the patch usage number determination means; 1. A patch management method, comprising: means for converting an area into an executable format; and an executable format converting means for converting the area determined by the executable format conversion area determining means into an executable format.