JPH02115950A - File tracing system for supporting program debug - Google Patents

Abstract

PURPOSE:To perform debugging work smoothly by performing debug by designating the trace instruction of a reference area and a trace targeted point where trace is performed comprehensively, and outputting a debug result to the designated file of a user. CONSTITUTION:A debug execution control part 2 performs a debug processing according to an inputted debug instruction by outputting an instruction to expedite the input of debug instruction information to a terminal 7 when the present break point of a user program shows a debug point, and outputs the debug result to the terminal 7. When the break point shows a trace targeted point, a processing is requested to a program development debug support file trace control part 3. The program development debug support file trace control part 3 acquires corresponding debug instruction information from a trace targeted point table by a trace targeted point control part, and requests the trace of an designation area to a trace control part 5. Collected trace information are outputted to the designated file by the file trace output control part 8 of an input/output control part 6.

Description

[Detailed Description of the Invention] (Field of Industrial Application) The present invention relates to a file tracing method for supporting program debugging, and in particular, debugs a program by inputting debugging instruction information from a terminal, and outputs the results to a terminal or a file. This paper relates to a file tracing method for debugging support that repeatedly performs debugging operations.

(Prior Art) In the conventional method of outputting file trace information, it is not possible to simultaneously specify a trace instruction for a reference area and a trace target point, which is a point to be traced.

(Problem to be Solved by the Invention) In other words, conventionally, when outputting debugging trace results to a file, tracing is instructed when a specified debugging point is reached, and tracing is instructed and traced for one reference area. Since it was not possible to specify the trace target points all at once, the next opportunity to input debugging instruction information was when tracing processing was interrupted at the debugging point, and debugging was performed while retaining the screen output information. I couldn't do that.

(Means for Solving the Problems) A file tracing method for supporting program debugging according to the present invention recognizes a breakpoint specified by a user, and when the breakpoint is a debugging point, executes debugging based on debugging instruction information. a debug execution control unit that controls, and a trace target point control unit that retrieves debug instruction information at the trace target point from a debug instruction information table at the request of the debug execution control unit when the break point is a trace target point; A trace control unit that debugs according to the specification of the debug instruction information and edits the result, and a file trace output control unit that outputs the edited debug result to a file, thereby providing a reference area trace instruction and a tracing point. Debugging is performed by specifying the trace target points at once, and the debugging results are output to a file specified by the user.

(Example) Next, the present invention will be explained with reference to the drawings.

FIG. 1 is a block diagram showing an embodiment of the present invention. A program development and debugging support program 1 includes a program development and debugging support file tracing method of the present invention, and is linked to a user's program under test. It has a function for debugging.

The terminal 7 outputs debugging results and inputs debugging instruction information. The file 9 is specified by the user, and the debugging results are outputted during file tracing. The debug execution control unit 2 searches the break point table shown in FIG. 4 to check whether the current break point of the user's program under test is a trace target point or a debug point, and if the current break point is a trace target point, the program development It requests processing to the debug support file trace control unit 3, interrupts the execution of the user program at the debug point, outputs a prompt to input debug instruction information to the terminal, and controls the execution of the debug process. The trace target point control unit 4 searches the trace target point table shown in FIG. 4 to obtain debug instruction information for the current trace target point. The trace control unit 5 is requested to perform tracing processing by the trace target point control unit 4, and refers to the contents of the designated user. The input/output control unit 6 controls input of debug instruction information by the user and output of debug results. The file trace control section 8 is included in the input/output control section, and outputs the debugging results collected by the trace control section to a file 9 designated by the user. The program development debugging support file trace control section 3 is a general term for the trace target point control section 4, the trace control section 5, and the file trace output control section 8.

FIG. 2 shows a flowchart of processing when debugging is performed by file tracing.

Debug processing is started from the terminal 7, the user program is executed, and when a break point is reached, control is passed from the user program to the debug support tp program. The debug execution control unit 2 (30) checks whether the current break point of the user program is a trace target point or a debug point (31) using the break point table shown in Figure 4. Obtain the debug point table shown in Figure 4, and output a prompt to input debug instruction information to terminal 7 (32).
, performs debug processing according to the input debug instructions (33), and outputs the debug results to the terminal (52).

When the point is to be traced, processing is requested to the program development debugging support file trace control unit 3 (40>).Program development debugging support file trace control unit 3 (
40), first, the trace target point control unit (41)
The corresponding debug instruction information is obtained from the trace target point table, and the trace control unit 5 (42) is requested to trace the specified area. The collected trace information is sent to the file trace output control unit 8 (51) of the input/output control unit 6 (50).
will be output to the specified file.

FIG. 3 shows an example of debugging using file tracing.

Arbitrary points A, B, C, D as tracing target points.

Specify E. Specify the address or register of the area you want to reference. Set the debug point at the point where you want to return to debugging using terminal output instead of file tracing. When a debug point is specified, the execution of the user program is interrupted at that point, control is passed to the debug support program 1, and a prompt to input debug instruction information is output to the terminal 7, allowing the user to input debug instruction information. can. After completing these instructions, run the user program from the address where you want to start file tracing. The debug results are the contents of specified areas and registers collected at each trace target point and are output to a file specified by the user.

(Effects of the Invention) As explained above, by using this file tracing method that supports program debugging, debugging can be performed by specifying the trace instruction of the reference area and the trace target point, which is the point where the trace is to be performed, at once. It is now easier to specify debug instruction information such as outputting debug results to a user-specified file for later reference.
In addition, when the user's test program has a screen input/output function and the screen is output to the terminal during debugging, the output screen will no longer be erased with the debugging results, making it easier to debug. Work can be done smoothly.

[Brief explanation of the drawing]

Fig. 1 is a block diagram showing an embodiment of the file tracing method for supporting program debugging according to the present invention, Fig. 2 is a flow chart of processing when debugging is performed using file tracing, and Fig. 3 is debugging using file tracing. FIG. 4 is a diagram illustrating an example of a table created/updated during processing. l...Program development debugging support program, 2.
...Debug execution control unit, 3...Program development debug support #2 file trace control unit, 4...Trace target point control unit, 5...Trace control unit, 6...I/O control unit, 7 ... terminal, 8 ... file trace output control section, 9 ... debug result file.

Claims (1)

[Claims] a debug execution control unit that recognizes a break point specified by a user and controls debug execution based on debug instruction information when the break point is a debug point; a trace target point control unit that extracts debug instruction information at a trace target point from a debug instruction information table at the request of an execution control unit; a trace control unit that performs debugging according to specifications of the debug instruction information and edits the results; By having a file trace output control unit that outputs debugging results to a file, debugging can be performed by specifying the trace instruction of the reference area and the trace target point, which is the point where tracing is performed, and the debugging results can be specified by the user. A file tracing method for supporting program debugging that is characterized by output to a file.