JPH05241798A - Lm generating process sytem under library information control - Google Patents

Abstract

PURPOSE:To speed up the linking process of the LM generating process system under the library information control by outputting information on library retrieval to an object by a compiler. CONSTITUTION:In a library maintenance process, in-library symbol definition reference constitution information is outputted to a library LIB. In a compiling process, information is inputted from the library LIB to generate linking-time library input member information, which is outputted to the object. In a linking process, the information in the object is referred to and a library member direct input means LK3 inputs members directly required for the linking process from the library LIB to generate a load module LM.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a load module generation processing system for inputting a source module and generating one load module in a computer system.

[0002]

2. Description of the Related Art Conventionally, in link processing in load module generation processing, an object module output by a compiler is input, and first, reference and definition of an external name included in the input object module are performed. Are associated with each other to perform a resolution process. As a result, for references that have not been resolved, the assigned user library or system library is searched, and if the definition to be resolved exists in that library,
The object module containing the definition is input from the library, and then the resolving process is performed again. Basically, the process of searching and resolving the library is repeated until there are no unresolved references. In other words, even when trying to relink an object module that was once compiled, the library was searched each time.

Alternatively, when the library is not searched, a process of linking all object modules in the library including unnecessary object modules has been performed.

[0004]

As described above, since the process of searching for an object module that needs to be linked by inputting from the library is closed in the link process, the link process must be performed without fail. I had to do a library search. Therefore, there is a drawback in that the link processing becomes slower as the number of times the library search and the solution processing are repeated increases.

In the case of relinking an object module that has been compiled once, although the same object module is input from the library and linked each time, the library is searched each time and then input. There was a drawback that a kind of useless processing of doing was entered.

Further, when all the object modules in the library are linked without searching the library, the linking process becomes faster, but there is a drawback that the load module generated becomes larger than necessary. It was

The present invention provides an LM generation processing method by library information management that solves the above-mentioned drawbacks.

[0008]

According to the LM generation processing method by library information management of the present invention, the registered member information input means for inputting the information of the members currently registered in the library and the newly registered member are inputted. New registered member input means, new registered / deleted member information generating means for generating information on newly registered members and deleted members, and new all member information from already registered member information and newly registered / deleted member information And all the member information generating means for generating, the correspondence information between the symbol definition having a certain definition name and the information of the member including the symbol definition, and the reference symbol of a certain member and the information of the member having the definition symbol that solves it. Comparing the in-library symbol definition reference configuration information with the in-library symbol definition reference configuration information generation means for generating the corresponding information of Library maintenance processing, which is composed of in-library symbol definition reference configuration information output means for outputting to library, and newly registered member / all member information output means for outputting newly registered members and all member information to library. , Source module input means for inputting a source module, definition reference symbol information generation means for analyzing the input source program and generating definition reference symbol information, and symbol in library for inputting in-library symbol definition reference configuration information from a library From the definition reference configuration information input means and the created definition reference symbol information and the entered symbol definition reference configuration information in the library, this object module generates information about the members that need input from the library when linking. And Li input member information generating means, and an object module generation means for generating an object module, compiled consists object module output means for outputting the generated object module processing and an object module input means for inputting an object module,
Link-time library input member information searching means for searching for link-time library input member information contained in the input object module, and library member for directly inputting a member (object module) from the library according to the link-time library input member information Direct input means, external name resolution means for performing resolution by associating the input reference and definition of the external name, load module generation means for generating one load module, and load module for outputting the generated load module This is an LM generation processing method by library information management including a link processing composed of output means.

[0009]

DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will be described below with reference to the drawings.

FIG. 1 shows an embodiment of the present invention, in which already registered member information input means LB1, newly registered member input means LB2, newly registered / deleted member information generation means LB.
3, all member information generation means LB4, in-library symbol definition reference configuration information generation means LB5, in-library symbol definition reference configuration information output means LB6, member and all member information output means LB7 Library maintenance processing, source module input Means C
1. Compile processing and object composed of definition reference symbol information generating means C2, in-library symbol definition reference configuration information input means C3, link time library input member information generating means C4, object module generating means C5, object module output means C6 Link processing composed of module input means LK1, library input member information retrieval means at link LK2, library member direct input means LK3, external name resolution means LK4, load module generation means LK5, load module output means LK6, and new registration Member file IN, library LIB, source module SM, object module OM,
It consists of load module LM.

First, the library maintenance process will be described.

Registered member information input means LB1 is used to input information about members currently registered in the library LIB. This member information includes the position of the member in the library, the size of the member, the symbol name of the reference and definition contained in the member, and the like. Subsequently, the member to be registered is input from the newly registered member file IN by the newly registered member input means LB2, and the newly registered / deleted member information generation means LB
By 3, the information about the member to be newly registered or deleted is generated. Next, the all-member information generation means LB4 combines the already-registered member information and the newly-registered / deleted member information, and finally generates information about all the members to be output to the library LIB. Then, the member and all-member information output means LB7 outputs information about the newly registered member and all members to the library LIB.

On the other hand, based on all the member information generated by LB4, how the in-library symbol definition reference configuration information generating means LB5 configures and associates the reference and definition symbols contained in the in-library member. Generate information. This information is information to be output to the library in order to pass it to the compiler side, and is roughly categorized into the following two points.

One is table information in which the symbol definition name included in the member in the library and the position and size of the member including the symbol definition name in the library are associated with each other.

The other is a list table of information (in-library position, size) about other members in the library including symbol definitions to be resolved, as symbol references included in the in-library members.

By referring to the information on these two points on the side of the compiler, it is possible to create information on all members that need to be input from the library at the time of linking.

Then, the in-library symbol definition reference configuration information output means LB6 outputs the same information to the library LIB. The above is the description of the library maintenance process.

Next, the compiling process will be described.

First, the source module SM is input by the source module input means C1. Next, the definition reference symbol information generating means C2 generates a list of definition reference symbols included in the source module.

On the other hand, the in-library symbol definition reference configuration information input means C3 inputs the in-library symbol definition reference configuration information generated in the library maintenance process and output to the library LIB. Therefore, from the list of definition reference symbols generated by C2 and the symbol definition reference configuration information in the library input from the library LIB, the link-time library input member information generation means C4 inputs this source program from the library LIB at the time of linking. Generates information (locations and sizes in the library of all members that require input) for all members that require.

Next, object module generation means
An object module is generated by C5, and at this time, the link-time library input member information generated by C4 is embedded in the object module.

Then, the object module O generated by the object module output means C6
Output M to a file.

Next, the link process will be described.

First, object module input means
Input the object module OM by LK1. Next, the link-time library input member information retrieval means LK2 retrieves the information contained in the input object module, that is, the information of all the members that this object module needs to input from the library at the time of linking. Using this information, the library member direct input means LK3 directly inputs all the required members from the library LIB. After that, the external name solving means LK4 performs resolution processing of the definition symbol and the reference symbol. here,
All the unresolved reference symbols for the library are resolved because all the members that require input from the library at the time of linking have already been input.
Therefore, it is not necessary to search the library LIB after this, and the load module is generated by the load module generation means LK5. Finally, the load module output means LK6 outputs the load module LM to a file.

[0025]

As described above, in the present invention, the compiler outputs information about all library members that need to be input at the time of linking in the object module to be output (the position of each member in the library and its size). By embedding, the processing of inputting from the library and searching for an object module that needs to be linked is completely deleted from the link processing.

Therefore, in the linking process, a series of processes of repeating the process of resolving the external name and the process of searching the library are eliminated until the unresolved reference symbols are eliminated, so that the linking process can be sped up.

In the case of relinking an object module that has been compiled once, it is known from the beginning that the same member is input from the library each time the linking process is performed, but the library is searched from the beginning. Although a kind of useless process of performing is performed, once the library input member information is output to the object module as in the present invention, the useless process as described above is not required. There are advantages.

[Brief description of drawings]

FIG. 1 is a block diagram of an embodiment of the present invention.

[Explanation of symbols]

LB1 Registered member information input means LB2 Newly registered member input means LB3 Newly registered / deleted member information generation means LB4 All member information generation means LB5 Library symbol definition reference configuration information generation means LB5 LB6 Library symbol definition reference configuration information output means LB6 LB7 member and all member information output means C1 source module input means C2 definition reference symbol information generation means C3 library symbol definition reference configuration information input means C4 link time library input member information generation means C5 object module generation means C6 object module output means LK1 Object module input means LK2 Library input member information search means at linking LK3 Library member direct input means LK4 External name resolution means LK5 Load module Tool generation means LK6 load module output means IN newly registered member file LIB library SM source module OM object module LM load module

Claims (3)

[Claims] 1. In a load module generation process for generating one load module from a source module, a registered member information input means for inputting information of members currently registered in the library and a member to be newly registered are provided. New registered member input means for inputting, new registered / deleted member information generating means for generating information on newly registered members and deleted members, and all new members from already registered member information and newly registered / deleted member information Correspondence information between all member information generating means for generating information, the symbol definition having a certain definition name and the information of the member containing it, and the reference symbol of a certain member and the information of the member having the definition symbol for solving it. In the library that generates correspondence information (hereinafter referred to as in-library symbol definition reference configuration information) VOL definition reference configuration information generating means, output means to the library for outputting the symbol definition reference configuration information in the library to the compiler, and output newly registered members and all member information to the library An LM generation processing method by library information management, characterized by comprising a library maintenance processing including a newly registered member / all member information output means. 2. In a load module generation process for generating one load module from a source module, source module input means for inputting a source module and a definition for analyzing the input source program and generating definition reference symbol information. This symbol is created from the reference symbol information generation means, the in-library symbol definition reference configuration information input means for inputting the in-library symbol definition reference configuration information from the library, the created reference definition symbol information and the input in-library symbol definition reference configuration information. A link-time library input member information generating means for generating information about members that need to be input from the library when the module is linked (hereinafter referred to as link-time library input member information), and an object module generation object. And E transfected module generation means, LM by library information management characterized by comprising a composed compilation from object module output means for outputting the generated object modules
Generation processing method. 3. In a load module generation process for generating one load module from a source module, an object module input means for inputting an object module and link time library input member information included in the input object module. Link-time library input member information search means for searching for, library member direct input means for directly inputting a member (object module) from the library according to the link-time library input member information, and reference and definition of the input external name. An external name solving means for associating and solving, a load module generating means for generating one load module, and a load module outputting means for outputting the generated load module are provided, and a link process is provided. LM generation processing method by library information management.