JPH01226041A - Debugging support processing system for program including input/output sentence - Google Patents

Abstract

PURPOSE:To know the execution order of input/output (I/O) sentences and devices to be inputted/outputted and to analyze a program without changing the program at the time of debugging by displaying I/O sentence tracing information only by specifying an option at the time of starting the execution of the program. CONSTITUTION:An I/O execution processing means 3 executes the execution processing of I/O sentences of the program. An option recognizing means 2 is accessed by the means 3 and recognizes whether an I/O sentence tracing information display specifying option indicating whether I/O sentence tracing information such as the kind of an I/O sentence, a device number specified by the I/O sentence, the program name of the program, and the row number of the I/O sentence is to be displayed or not is previously specified or not at the time of starting the execution of the program. When the I/O sentence tracing information specifying option is recognized by the means 2, an I/O sentence tracing information display means 4 is accessed by the means 3 and the I/O sentence tracing information is displayed on a display device 5.

Description

DETAILED DESCRIPTION OF THE INVENTION (Field of Industrial Application) The present invention relates to a debugging support processing method for programs containing input/output statements. The present invention relates to a debugging support processing method that supports debugging of a program (hereinafter simply referred to as a program) including the following.

[Conventional technology]

-a) When debugging a program, it may be necessary to analyze the process flow of the program. Conventionally, the following two methods have been used to analyze the flow of processing of this program.

The first method is a method in which a user inserts an output statement into a program and analyzes the flow of the program's processing based on the output result of the inserted output statement.

The second method is when the computer system has a debug support function, the user specifies the debug support function to operate when compiling the program, and further sets trace points when the program is executed. This is a method of analyzing flow.

[Problem to be solved by the invention]

The conventional program debugging support processing method described above has the following drawbacks.

First, in the first method, the flow of program processing is analyzed based on the output result of the output statement, so the user has to insert the output statement into the program to be debugged. The disadvantage is that the output statement must be deleted when it is no longer needed.

In addition, in the second method, the flow of program processing was analyzed using the debugging support function of the computer system, so the user specified that the debugging support function should be activated when compiling the program, and then compiled the program. The disadvantage is that the trace point must be specified at runtime.

In view of the above-mentioned points, an object of the present invention is to support program debugging by allowing a user to make changes to a program or specify to operate a debugging support function when analyzing the processing flow of a program. The object of the present invention is to provide a debugging support processing method for programs containing input/output statements that eliminates the need to specify trace points.

[Means to solve the problem]

The debugging support method for a program including input/output statements according to the present invention provides an input/output execution processing means for executing input/output statements included in the program in a computer system having a mechanism for specifying options at the start of program execution. , the type of input/output statement called by this input/output execution processing means.

The input/output statement trace information display specification option indicating whether to display input/output statement trace information such as the device number specified in the input/output statement, the program name of the program, the line number of the input/output statement, etc. an option recognition means that recognizes whether or not it has been specified in advance at the start of program execution; and an option recognition means that is called by the input/output execution processing means when the input/output statement trace information specification option is recognized by this option recognition means; and input/output sentence trace information display means for displaying sentence trace information on a display device.

[Effect]

In the debugging support method for a program including input/output statements of the present invention, the input/output execution processing means executes the input/output statements included in the program, and the option recognition means is called by the input/output execution processing means to execute the input/output statements included in the program. The input/output statement trace information display specification option that indicates whether to display input/output statement trace information such as type, device t1 specified in the input/output statement, program name of the program, line number of the input/output statement, etc. When the input/output statement trace information display means recognizes the input/output statement trace information specification option by the option recognition means, the input/output statement trace information display means is called by the input/output execution processing means. Display statement trace information on a display device.

〔Example〕

Next, the present invention will be explained in detail with reference to the drawings.

FIG. 1 is a block diagram showing the configuration of a debugging support processing method for a program including input/output statements according to an embodiment of the present invention. The debugging support system for a program including input/output statements in this embodiment consists of a program l created in the FORTRAN language, an option recognition means 2, and an input/output execution processing means 3.
, an input/output statement trace information display means 4 , and a display device 5 .

Next, the operation of the debugging support processing method for a program including input/output statements according to the present embodiment configured as described above will be explained.

If necessary, the user specifies in advance the input/output statement trace information display option, which is an option for specifying display of input/output statement trace information at the start of execution of the program l.

When execution of the program 1 is started and an input/output statement included in the program 1 is to be executed, the program 1 calls the input/output execution processing means 3.

The input/output execution processing means 3 called from the program 1 calls the option recognition means 2 after executing the input/output statement.

The option recognition means 2 called by the input/output execution processing means 3 recognizes that the input/output statement trace information display option is specified, and notifies the input/output execution processing means 3.

The input/output execution processing means 3, notified by the option recognition means 2 that the input/output statement trace information display option has been designated, calls the input/output statement trace information display means 4. Note that if the option recognition means 2 does not notify that the input/output statement trace information display option is specified, the input/output execution processing means 3 does not call the input/output statement trace information display means 4.

The input/output statement trace information display unit 4 called by the input/output execution processing unit 3 analyzes the input/output statement processed by the input/output execution processing unit 3, and determines the type of input/output statement and the information specified by the input/output statement. The input/output statement trace information consisting of the device number, the program name of program 1, and the line number of the input/output statement is displayed on the display device 5.

For example, line number "1000" of program l shown in FIG.
J's input/output statement WRITE (6, *) I, R's input/output statement trace information display will be explained.

Note that r6J in the above WRITE statement indicates the device number of the display device 5.

First, as shown in FIG. 2, the input/output execution processing means 3 executes the WRITE statement, causing
, RJ values r100 200J are displayed on the display device 5.

Next, by displaying the input/output statement trace information by the input/output statement trace information display means 4, rEXEc'WRITE'J indicating the type of input/output statement and rUNI indicating the device number are displayed.
T-6J, rPROG indicating the program name = MA IN
J and r indicating the line number of the input/output statement that was executed
ELN=1000” is displayed on the display device 5.

C. Effects of the Invention] As explained above, the present invention allows input/output statement trace information to be displayed on a display device simply by specifying an option at the start of program execution, making it easier for the user to debug a program. Therefore, when analyzing the processing flow of a program, you can know the execution order of each input/output statement and the device number of the input/output device to which input/output was performed without changing the program. This has the effect that the flow of processing can be easily analyzed.

[Brief explanation of the drawing]

FIG. 1 is a block diagram showing the configuration of a debugging support processing method for a program including input/output statements according to an embodiment of the present invention, and FIG. 2 shows input/output statement trace information displayed on the display device in FIG. 1. It is a figure showing an example. In the figure, 1: program, 2: option recognition means, 3: input/output execution processing means, 4: input/output statement trace information display means, 5: display device.

Claims (1)

[Scope of Claims] In a computer system having a mechanism for specifying options at the start of program execution, an input/output execution processing means for executing input/output statements included in the program; Input/output indicating whether to display input/output statement trace information such as the type of the input/output statement, the device number specified in the input/output statement, the program name of the program, and the line number of the input/output statement. an option recognition means for recognizing whether or not a statement trace information display specification option has been specified in advance at the start of execution of the program; and a method for executing the input/output when the input/output statement trace information specification option is recognized by the option recognition means 1. A debug support processing method for a program including input/output statements, comprising: input/output statement trace information display means that is called by a processing means and displays the input/output statement trace information on a display device.