JPH10283166A - Program function analysis support method, device and record medium - Google Patents

Abstract

PROBLEM TO BE SOLVED: To support so that the function analysis of a user program that is generated through a compiler language may easily and also surely be carried out. SOLUTION: This device stores a function correspondence table 243 which describes a correspondence relation between a function identification name NFD that is described on a source program 211 and an execution module name NMD that is a function name of execution modules 234a and 234b, retrieves an execution type library 22 which includes plural execution programs 221a and 221b that are execution type programs about a user program by making the NMD a key and also referring to the table 243, and outputs the NFD that corresponds to the NMD about the programs 221a and 221b including the NMD and a source program name NSP of source programs 211a and 211b which correspond to the programs 221a and 221b including the NMD as retrieval results.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method and an apparatus for supporting functional analysis of a user program created by a compiler language, and a recording medium.

A compiler provided as a product from a computer hardware or software maker usually includes not only a compiler for performing original translation processing but also various functions described as sentences in a program. Many executable modules are included as runtime libraries.

A plurality of source programs (user source programs) created using a compiler language are compiled into a plurality of intermediate-format compile units, and the plurality of compile units are used as one executable program by a linker. Is converted to a user executable program. At this time, among the many statements described in the user source program, the function provided as the runtime library corresponds to the function instead of generating the corresponding machine language. Replaced with the function name, which is the name of the executable module.

[0004] With the daily use of computers, the number of user source programs to be created has become enormous, and the number of user executable programs has increased accordingly. In the user executable program,
There is a complex relationship between programs, such as runtime libraries are often referenced and other user executable programs are referenced.

[0005] Therefore, in order to reliably correct, edit, maintain, and manage a program created or actually operated,
It is necessary to sufficiently analyze the function of a program, and therefore, a function analysis support device capable of easily and reliably analyzing the function of a program is desired.

[0006]

2. Description of the Related Art Conventionally, functional analysis of a user program has been performed for a user source program.

That is, for example, in a program created in the COBOL 85 language, the expression of the date is "YY
MMDD ”or“ YYDDD ”, 2000 and 1
Since both "YY" and "900" are the same in "900", it is necessary to check the processing related to the date described in the program before the year 2000 is reached.

The description for obtaining the date in the COBOL 85 language is described in “ACCEPT data area FROM
DATE ”or“ ACCEPT data area FRO
MDAY ". Conventionally, a user source program is checked to extract a program having such a description.

[0009]

However, when a function analysis is performed for a user source program, even if the same function is used, the description is different if the language is different. Different languages have to be checked for different descriptions, which takes a lot of time and effort. In addition, usually, the user source program has a larger amount of data than the user executable program, and there is a possibility that the user source program that is not actually operated may be checked, so that extra time is required. Cost.

[0010] Further, there is a case where the user source program corresponding to the user executable program is absent or unknown even though the user executable program is actually operated, in which case the check is omitted. May cause problems later.

SUMMARY OF THE INVENTION The present invention has been made in view of the above-mentioned problem, and has as its object to support the function analysis of a user program created by a compiler language so that it can be performed easily and reliably.

[0012]

According to a first aspect of the present invention, there is provided a method for supporting a function analysis of a user program created by a compiler language in order to solve the above-mentioned problems. A correspondence table that describes a correspondence relationship between an identifier of a function described in a user source program which is a source program of the program and a function name of a compiler module at the time of execution included in an operating system is stored in a storage device. A user executable library including a plurality of user executable programs, which are executable programs for the user program, is searched by referring to the correspondence table using the function name as a key, and searching for the function name. For user-executable programs that include, the identifier corresponding to the function name and the user-executable format that includes the function name And outputs the name of the user source program corresponding to the program as the search result.

According to a second aspect of the present invention, the search is performed for all function names described in the correspondence table. According to a third aspect of the present invention, the search is performed for a specified specific function name.

According to a fourth aspect of the present invention, there is provided an apparatus for supporting a function analysis of a user program created by a compiler language, wherein the apparatus is stored in a storage device and is a source program for the user program. A correspondence table describing the correspondence between the identifiers of the functions described in the user source program and the function names of the compiler modules at the time of execution included in the operating system, and a plurality of executable programs for the user program. Search means for searching for a user executable library including a user executable program by referring to the correspondence table using the function name as a key, and for a user executable program including the function name, User source corresponding to the user executable program including the corresponding identifier and the function name Having output means for outputting program of a name as a search result, the.

According to a fifth aspect of the present invention, there is provided a recording medium described in a user source program, which is a source program for the user program, in order to support a function analysis of the user program created by a compiler language. A correspondence table describing the correspondence between the function identification name and the function name of the compiler module at the time of execution included in the operating system, and a plurality of user executable programs that are executable programs of the user program. A process of searching for a user executable format library including the function name as a key and referring to the correspondence table, and for a user executable format program including the function name, an identification name corresponding to the function name and the function Name of the user source program corresponding to the user executable program including Program for executing a process of outputting the result to the computer, which is a recording medium readable computer that stores.

The function analysis support method according to the present invention
This will be described with reference to the flowchart shown in FIG. 6 and FIGS. First, the operator instructs a function analysis process (#
11). At this time, if the user wants to analyze a specific function, the user inputs and designates the identification name of the function (function identification name NFD). The search unit 241 reads one user executable program (executable program 221a) from the executable library 22 into the memory 111 of the host 11 (#
12). The host 11 reads the execution program 2
A search is performed for 21a using the execution module name NMD as a key (# 13). At this time, when the function identification name NFD or the execution module name NMD is specified by the operator, a search is performed by the specified execution module name NMD, and when there is no specification, a correspondence table (function correspondence table 243). A search is performed using each execution module name NMD described in (1) as a key.

When the search for all execution programs is completed (Yes in # 14), a search result (search result list 244) is created (# 15), and the created search result list 244 is stored in the terminal device 12 or the printer device 13. (# 16).

In the search result list 244 shown in FIG. 5, for example, the execution program name NEP is "LOAD-1".
Function execution name 221a
Uses the execution module 234a corresponding to "DATE", and the corresponding source program name NS
It can be seen that P is “SP-1”. Therefore, as a response to the year 2000, the source program name NS
It can be seen that P needs to check the source program 211a of "SP-1".

When performing a search using the execution module name NMD as a key, the execution module name NMD may be used as a direct key, or the search may be performed using another symbol or code corresponding to the execution module name NMD. Good.

The function analysis support apparatus according to the present invention is realized using, for example, a personal computer or a workstation. A program for executing the method according to the present invention includes a semiconductor memory, a hard disk, and a CD-RO.
M, a floppy disk, or a magneto-optical disk. The program stored in the recording medium is loaded on the main memory as appropriate and executed by the processing device. At that time, a drive device such as a CD-ROM drive, a floppy disk drive, or a magneto-optical disk drive is used as necessary. When the recording medium is provided in a server connected by a communication line such as a network, the program is read or downloaded from the server through the communication line. When the program is transferred to the processing device via a communication line, the communication line itself also corresponds to a recording medium. The programs can be supplied to operate under various OSs, platforms, system environments, or network environments.

[0021]

FIG. 1 is a block diagram showing the overall configuration of a computer system 1 provided with a function analysis support device AM according to the present invention. FIG. 2 shows the relationship among various programs stored in the computer system 1. FIG.

In FIG. 1, a computer system 1
Comprises a host 11, a terminal device 12, a printer device 13, a media drive device 14, a source library 21, an executable format library 22, a compiler library 23, an analysis library 24, and the like. Various libraries are stored in a magnetic disk device.

The terminal device 12 is a display device 12
1, a keyboard 122 and a mouse 123. Various commands and data can be sent to the terminal device 12 and the host 11 by operating the keyboard 122 or the mouse 123. On a screen HG of the display device 121, various information, data, images, and the like, including a search result list 244 sent from the host 11, are displayed.

The printer device 13 prints various information including the search result list 244 sent from the host 11. The media drive device 14 is a CD-R
It reads or writes from the OM 141, the floppy disk 142, and other various recording media.

The source library 21 is a library storing a plurality of source programs created using a compiler language. As shown in FIG. 2, the source programs 211a, b, c,.
Source program names NSP such as “SP-2”, “SP-3”...

The executable library 22 is a library that stores executable programs that are executable programs. As shown in FIG. 2, the execution programs 221a and 221b
... are "LOAD-1" and "LOAD-2" respectively.
.. Are assigned the execution program name NEP.

The compiler library 23 is a library that stores various programs and data provided from a manufacturer as a compiler product. As shown in FIG. 2, the compiler library 23 includes
1, a linker 233, a runtime library 234, and the like.

The compiler 231 executes the source program 2
11a, b, and c are compiled and converted into a compilation unit 232 in an intermediate format. The plurality of compilation units 232 are executed by the linker 233 by the execution program 221.
are converted to a and b. At that time, the source program 21
Among the many statements described in 1a, b, and c, the functions provided as the runtime library 234 are as follows.
The names (executable module names) of the execution modules 234a, 234b,..., Which are the modules of the execution format corresponding to the function, without generating the corresponding machine language
Is replaced by

The analysis library 24 is a library in which executable programs and data for analyzing the functions of the user program are stored. Analysis Library 2
4 executes the search result list 244.
This will be described later.

The host 11 executes the programs stored in the respective libraries to compile the source programs 211a, b, c,.
1a, b..., The function analysis of the user program by the analysis library 24, the reception of commands from the terminal device 12, the transfer of data such as the output of the search result list 244 to the terminal device 12, and the media drive device 14. , And outputs the search result list 244 to the printer device 13 and performs various other processes to control the entire computer system 1.

FIG. 3 is a block diagram for explaining the analysis library 24 and a function analysis process by executing the library.
FIG. 5 is a diagram showing an example of a function correspondence table 243, and FIG. 5 is a diagram showing an example of a search result list 244.

Referring to FIG. 3, in the source program 211a of the source program name NSP "SP-1" stored in the source library 21, a sentence containing the function identification name NFD "DATE" (reserved word or embedded Function) is described. The function identifier NFD is a symbol or a code for identifying various functions described or capable of being described in the source program. In describing the actual source programs 211a, b, and c, the function identifier NFD depends on the compiler language. Can take various forms of description.

For example, the description of the function for obtaining the date in the COBOL 85 language is “ACCEPT data area FROM DATE” or “ACCEPT data area FROM DAY”. In the example shown in FIG. 3, this description is simplified and described as "DATE". Although not shown in FIG. 3, one or more various function identifiers NFD are described in other source programs.

The execution program 221a whose execution program name NEP is "LOAD-1" stored in the execution format library 22 includes an execution module 234a corresponding to "DATE" described in the source program 211a.
"JMPMDATE" which is the execution module name NMD
Is described. Similarly, “JMPMDEBU” and “JMPMSORT” are included in the execution program 221b.
Is described.

The source programs 211a, b, c
.. Correspond to the “user source program” in the present invention, and the function identifier NFD corresponds to the “function identifier” described therein. Also, the execution programs 221a, b ...
Are the “user executable program” of the present invention, and the execution modules 234a, b, c... Are the “compiler modules at the time of execution” of the present invention.
The MD corresponds to the “function name of the compiler module at the time of execution” in the present invention. Execution module 23
4a, b and c are included in the operating system of the computer system 1. The function analysis support device AM is realized by processing by the analysis library 24 and the host 11.

The analysis library 24 includes a search unit 241
And a function correspondence table 243 are provided. Search unit 241
Stores the executable library 22 in the executable program name NE
A search is performed by using P as a key and referring to the function correspondence table 243. That is, for each execution program 221a, b ... in the execution format library 22, the execution program name NE
The execution program in which P is described is extracted, the source program name NSP corresponding to the extracted execution program is acquired with reference to the function correspondence table 243, and the search result list 2 is obtained.
Create 44. Note that a program that implements the search unit 241 is loaded into the memory 111 of the host 11 when the program is executed.

The function correspondence table 243 indicates that the source program 2
11a, b, c,... And the execution module 234 included in the runtime library 234.
This describes the correspondence between a, b, and c and the execution module name NMD.

As shown in FIG. 4, the function correspondence table 243 describes the correspondence between items of a product name NPO, an execution module name NMD, and a function identification name NFD. The product name NPO is the name of a series of products provided as a compiler library 23 by the manufacturer. Usually, a product is provided for each compiler language. Execution module name NM
D is the runtime library 234 included in the product
Are the names at the time of calling the execution modules 234a, b, c,..., That is, for example, the module names or the program names. The function identification name NFD is stored in each execution module 234.
Symbols or codes corresponding to the functions a, b, and c. The function identification name NFD is also for identifying the function of the statement described in the source program 211.

In the example shown in FIG. 4, the product name NPO is "A-
COB ", the execution module name NMD is" JMP
Function identifier N of execution module 234a of “MDATE”
FD is “DATE”. Therefore, if the function for obtaining the date is described in the source program, that is, if there is a description corresponding to “DATE”, the description that calls “JMPMDATE” at the time of compilation is included in the description. Is converted.

In FIG. 5, the search result list 244 is
This is a list describing items of a number NBR, an execution program name NEP, a source program name NSP, and a function identification name NFD. It should be noted that other items are also described, but are omitted because they have no direct relation to the features of the present invention.

Next, an operation flow of the function analysis processing in the computer system 1 will be described. FIG. 6 is a flowchart showing the flow of the operation of the function analysis process.

In FIG. 6, first, the operator instructs a function analysis process (# 11). At this time, if it is desired to analyze a specific function, the user inputs and instructs the function identification name NFD. The search unit 241 reads one execution program 221a in the execution format library 22 into the memory 111 of the host 11 (# 12).

The host 11 searches the read execution program 221a using the execution module name NMD as a key (# 13). At that time, when the function identification name NFD or the execution module name NMD is designated by the operator, the search is performed by the designated execution module name NMD.
A search is performed using each execution module name NMD described in No. 3 as a key.

When the search for one execution program 221a is completed, the next execution program 221b is read into the memory 111, and the same search is performed (No in # 14). When the search for all execution programs is completed (Yes in # 14), a search result list 244 is created (# 15), and the created search result list 244 is output to the terminal device 12 or the printer device 13 (# 16). .

In the search result list 244 shown in FIG. 5, for the execution program 221a whose execution program name NEP is "LOAD-1," the function identification name NFD is "D
It can be seen that the execution module 234a corresponding to "ATE" is used, and the source program name NSP corresponding to it is "SP-1". Therefore, the year 2
In order to respond to the year 000, it is necessary to check the source program 211a whose source program name NSP is "SP-1".

According to the search result list 244, the execution program 221a having the execution program name NEP of “LOAD-1” has two source programs having the source program names NSP of “SP-1” and “SP-2”. 211a and b are combined, and the second "S
It can be seen that the function identification name NFD is not described in “P-2”. Such link information is described in each execution program.

The operator outputs the output search result list 24.
4, it is possible to easily know which source program describes the specified function identifier NFD or some function identifier NFD. The operator performs maintenance and management of the user program by appropriately modifying and editing the source program in which the function identification name NFD is described.

According to the computer system 1 described above,
Function analysis of a user program created by a compiler language can be easily and reliably performed. Since the operator can specify the function identification name NFD, it is possible to efficiently perform the function analysis on the function identification name NFD in question for the time being. The operator has the function identifier NF
If D is not specified, all function identifiers NFD described in the function correspondence table 243, that is, function analysis of all execution module functions provided as a compiler product can be comprehensively performed.

In the above embodiment, the function correspondence table 24
3 corresponds to the “correspondence table” in the present invention,
4 respectively correspond to the “search result” in the present invention. In the above-described embodiment, the configuration, name, description method, processing method, processing sequence, configuration of the entire computer system 1 or each unit, and the like of each library can be appropriately changed in accordance with the gist of the present invention.

The program for performing the above-described function analysis processing includes an analysis library 24 (magnetic disk device), a CD-ROM 141, and a floppy disk 14
2, MT, or other various recording media, and can be loaded into the memory 111 or downloaded from another host via a communication line. The programs can be supplied to operate under various OSs, system environments, or platforms.

[0051]

According to the first to fifth aspects of the present invention,
Function analysis of a user program created by a compiler language can be easily and reliably performed.

In particular, since the user executable format program is searched using the correspondence table, the time required for the search is reduced.
Moreover, there is no risk of missing the check, and the search is performed reliably.

According to the second aspect of the present invention, it is possible to perform a comprehensive analysis of all the identifiers described in the correspondence table, that is, all the execution module functions provided as a compiler product.

According to the third aspect of the present invention, it is possible to efficiently perform a function analysis on a function which is a problem for the time being.

[Brief description of the drawings]

FIG. 1 is a block diagram showing the overall configuration of a computer system provided with a function analysis support device according to the present invention.

FIG. 2 is a diagram showing a relationship among various programs stored in a computer system.

FIG. 3 is a block diagram for explaining an analysis library and a function analysis process by executing the library;

FIG. 4 is a diagram showing an example of a function correspondence table.

FIG. 5 is a diagram illustrating an example of a search result list.

FIG. 6 is a flowchart illustrating a flow of an operation of a function analysis process.

[Explanation of symbols]

11 Host (Functional Analysis Support Device) 12 Terminal Device (Output Means) 13 Printer Device (Output Means) 22 Executable Library (User Executable Library) 24 Analysis Library (Storage Device, Recording Medium) 141 CD-ROM (Recording) Medium) 142 Floppy disk (recording medium) 211 Source program (user source program) 221 Executable program (user executable program) 234 Executable module (compiler module at execution) 241 Search unit (search means) 243 Function correspondence table ( Correspondence table) 244 Search result list (Search result) NSP Source program name (User source program name) NFD Function identification name (Function identification name) NMD Execution module name (Function name of compiler module at execution) AM Function analysis Support device

Claims (5)

[Claims] 1. A method for supporting a function analysis of a user program created by a compiler language, comprising: an identification name of a function described in a user source program which is a source program of the user program; and an operating system. A correspondence table describing the correspondence relationship between the function names of the compiler modules at the time of execution and contained in the storage device is stored in the storage device, and includes a plurality of user executable format programs which are executable format programs for the user program A user executable format library is searched for by using the function name as a key and referring to the correspondence table, and for a user executable format program including the function name,
A function analysis support method for a program, comprising: outputting, as a search result, an identification name corresponding to the function name and a name of a user source program corresponding to a user executable program including the function name. 2. The method according to claim 1, wherein the search is performed for all function names described in the correspondence table. 3. The method according to claim 1, wherein the search is performed for a specified specific function name. 4. An apparatus for supporting function analysis of a user program created by a compiler language, wherein the function is stored in a storage device and described in a user source program that is a source program for the user program. A correspondence table describing the correspondence between the identifiers of the compiler programs and the function names of the compiler modules included in the operating system at the time of execution, and the use including a plurality of user executable programs that are executable programs of the user programs. Search means for searching for a user executable library using the function name as a key and referring to the correspondence table; and a user executable program including the function name,
Output means for outputting, as a search result, an identification name corresponding to the function name and a name of a user source program corresponding to a user executable program including the function name, as a search result. Support equipment. 5. An identification name of a function described in a user source program which is a source program of the user program and included in an operating system to support function analysis of the user program created by a compiler language. Table that describes the correspondence between the compiler module function names at the time of execution and
A process of searching for a user executable library including a plurality of user executable programs that are executable programs for the user program by using the function name as a key and referring to the correspondence table; For user executable programs containing names,
A process of outputting, as a search result, an identification name corresponding to the function name and a name of a user source program corresponding to a user executable program including the function name, and a program causing a computer to execute the process. A readable recording medium.