JPH01231136A - Trace information output system - Google Patents

Abstract

PURPOSE:To reduce the quantity of trace information to be outputted to the minimum after having included the trace information required for confirming the flow of a processing of a program by dividing a passing derail point for outputting the trace information into a level 1 and 2. CONSTITUTION:A trace information editing output routine registering means 1 registers a trace information editing output means 3 for outputting the trace information at the time of starting the execution of a program, in the program. Also, a trace information store part 5 stores temporarily the prescribed number of latest trace information. When said information has reached a passing derail point which is divided into a level 1 and a level 2 in advance in the course of execution of the program, a track information stack means 2 stores a passing derail point name, and the passing derail point name and processed information as the trace information in the trace information store part 5 in case of the level 1 and in case of the level 2, respectively.

Description

[Detailed Description of the Invention] (Field of Industrial Application) The present invention relates to a trace information output method, and in particular, the present invention relates to a trace information output method, and in particular, the processing flow of a program is improved by editing and outputting passing delay point names and processed information as trace information. This invention relates to a trace information output method that minimizes the amount of trace information output in a program debugging method for checking.

[Conventional technology]

Conventionally, this type of trace information output method generally includes the following methods.

First, the first method is the commonly used method,
There is a method that edits and outputs all trace information unconditionally.

The second method is to temporarily store all the trace information as a file on an intermediate medium such as a disk, and then extract the necessary trace information from the trace information stored on the intermediate medium after the execution of the program by a separate means. There is a method of searching and outputting.

[Problem to be solved by the invention]

In the first conventional trace information output method described above, all trace information was edited and outputted unconditionally.
The drawback is that the amount of output becomes enormous depending on the amount of trace information. In particular, even though most of the necessary trace information during normal debugging is the trace information immediately before the program terminates abnormally, a lot of unnecessary trace information is output before the necessary trace information is output. This has the drawback that the output amount of trace information and the output time are wasted.

In addition, in the conventional second trace information output method, the necessary trace information was searched for, edited, and output from the trace information stored on the intermediate medium, so the processing procedure for searching for the necessary trace information was This has the disadvantage that the processing procedure becomes complicated.

Another drawback is that it takes time to search for necessary trace information depending on the amount of trace information stored on the intermediate medium.

In view of the above-mentioned points, an object of the present invention is to
The object of the present invention is to provide a trace information output method that outputs trace information that has been narrowed down to the necessary minimum after all the information has been analyzed.

[Means to solve the problem]

The trace information output method of the present invention is a program debugging method that checks the processing flow of a program by outputting a kiA collection of passing delay point names and processed information as trace information. a trace information editing output routine registration means for registering a trace information editing output means for outputting trace information in a program; a trace information storage section for temporarily storing a certain number of the latest trace information; When reaching a passing delay point divided into levels 1 and 2, the trace information storage section stores the passing delay point name at level 1 and the passing delay point name and processed information at level 2 as trace information. and a trace information stack means for storing the trace information in the trace information storage section when registering the trace information edit output means by the trace information edit output routine registration means and store the trace information storage address of the trace information storage section in the trace information storage section. It has an information stacking means and a trace information transfer means for taking over the trace information editing and outputting means.

[Operation]- In the trace information output method of the present invention, the trace information kM
The collection/output routine registration means registers in the program a trace information editing/output means that outputs trace information at the start of program execution, and the trace information storage section temporarily stores a certain number of the latest trace information, and the trace information stack means When reaching a passing delay point that has been divided into levels 1 and 2 in advance during program execution, the trace information is processed as the passing delay point name at level l and the passing delay point name at level 2. information and are respectively stored in the trace information storage section,
When the trace information editing and outputting means is registered by the trace information editing and outputting routine registration means, the trace information storage address takeover means secures the trace information storage section and transfers the trace information storage address of the trace information storage section to the trace information stacking means and the trace information editing. Take over for output means.

〔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 program to which a trace information output method according to an embodiment of the present invention is applied.

This program includes trace information editing output routine registration means 1, trace information stack means 2, trace information 1m collection output means 3, trace information stack address inheritance means 4, and trace information storage section 5. It is configured.

The trace information stack means 2 stores a passing delay point of level l as trace information when a passing delay point, which is divided into level l and level 2 by the programmer (program creator) in advance, is reached during program execution. Level 1 trace information stacking means 21 for stacking passing delay point names of rail points, and level 2 trace information stacking means 21 for stacking passing delay point names and processed information of level 2 passing delay points as trace information. It consists of 22.

FIG. 2 is a diagram showing details of the trace information storage section 5. As shown in FIG. The trace information storage section 5 includes a level I trace information storage section 51 and a level 2 trace information storage section 52.

The level 1 trace information storage section 51 consists of a level 1 trace information start address area 511 , a level 1 trace information stack address area 512 , a level 1 trace information area size area 513 , and a level 1 trace information storage area 514 . .

The level 2 trace information fl storage unit 52 includes a level 2 trace information start address area 521 and a level 2 trace til! It consists of a stack address area 522, a level 2 trace information fiJl area size area 523, and a level 2 trace information storage area 524.

Next, the operation of the trace information output method of this embodiment configured as described above will be explained.

When starting the trace information editing and outputting process, the program (not shown) can automatically transfer control to the trace information editing and outputting means 3 by the operating system (not shown) if the program terminates abnormally. Thus, the trace information editing output routine registration means 1 for registering the trace information editing output means 3 is called.

The trace information editing output routine registration means 1 called from the program is the trace information flI&I collection output means 3.
Performs the registration process.

Next, the trace information stack address takeover means 4 secures the level I trace information storage section 51 and the level 2 trace information storage section 52 in the trace information storage section 5, and stores the level 1 trace information storage section 51 in the level 1 trace information storage section 51. The information start address area 511, the level 1 trace information stack address area 512, and the level l trace information area size area 513 are each initialized, and the level 2 trace information start address %l area 521. The level 2 trace information stack address area 522 and the level 2 trace information area size area 523 are each initialized.

Note that the size of the level 1 trace information storage area 514 and the level 2 trace information storage area 524 may be determined in consideration of the amount of trace information to be output.

Next, the stacking process of trace information will be explained.

The programmer divides the passing delay points recognized as necessary into level 1, which corresponds to the entrance and exit of the module, and level 2, which corresponds to the intermediate passing delay points within the module. Level 1 trace information stacking means 21 in the trace information stacking means 2 at the passing delay point
Alternatively, a procedure for calling the level 2 trace information stack means 22 is incorporated.

For example, when a predetermined level 1 passing delay point is reached during program execution, the program:
Call the level l trace information stack means 21 and pass the passing delay point name.

The level l trace information stack means 21 which is called by the program and passed the passing delay point name,
The trace information stack address transfer means 4 obtains the level l trace information stack address 8N area 5120 level l trace information stack address of the level 1 trace information storage unit 51, and transfers the passing delay point name passed from the program to the level 1 trace information. The level I trace information stack address in the level I trace information stack address area 512 is updated.

If the level 1 trace information stack address exceeds the range of the level 1 trace information storage area 514, it is stored in the level 1 trace information stack address area 512 as a level 1 trace information stack address in the level 1 trace information start address area 511. 1 Set the trace information start address.

Similarly, when a level 2 passing delay point is reached and the level 2 trace information stack means 22 is called from the program, the passing delay point name and processed information are stored in the level 2 trace in the trace information storage unit 5. It is stored in the level 2 trace information storage area 524 in the information storage unit 52, and the level 2 trace information stack address of the level 2 trace information stack address BUA 522 is updated.

As described above, a certain number of the latest pieces of trace information are stored in the trace information storage unit 5 in a round-robin manner.

When a program terminates prematurely for some reason, the operating system calls a corresponding routine according to the cause of the premature termination.

In this case, the corresponding routine is trace information &g collection routine 9. Since the trace information editing/outputting means 3 is registered by the recording means 1, the tracing information editing/outputting means 3 is automatically called.

The trace information editing output means 3 called by the operating system obtains the level 1 trace information stack address of the level 1 trace information stack address area 512 of the level 1 trace information storage section 51 by the trace information stack address inheritance means 4. The passing delay point names stored in the level 1 trace information storage area 514 are edited and output in the order of round tropins.

As a result, a certain number of latest passed delay point names are output in the order of passing.

The trace information editing/outputting means 3 edits and outputs the passing delay point name and processed information stored in the level 2 trace information storage area 524 of the level 2 trace information a storage section 52 using the same procedure. A certain number of latest passed delay point names and processed information are output in the order of passing.

As described above, although the amount of output trace information is small, it is possible to obtain the overall processing flow and the latest detailed trace information.

〔Effect of the invention〕

As explained above, the present invention temporarily stores trace information of a certain size in a trace information storage unit corresponding to each level in which passing delay points to which trace information is to be output are divided into level 1 and level 2. By editing and outputting a certain number of stored trace information in the order of round tropin when the program terminates abnormally, we have covered the trace information necessary to f+iLW the program processing flow. This has the effect that the amount of trace information to be output can be minimized.

[Brief explanation of the drawing]

FIG. 1 is a block diagram showing the configuration of a program to which a trace information output method according to an embodiment of the present invention is applied, and FIG. 2 is a diagram showing details of the trace information storage section in FIG. 1. In the figure, 1...Trace information editing output routine registration means, 2...Trace information stacking means, 3...Trace information editing and outputting means, 4...Trace information stack address inheritance means, 5...Trace Information storage unit, 21...Level 1 trace information stack means, 22.
...Level 2 trace information stack means, 51...Level I trace information storage unit, 52...Level 2 trace information storage unit, 511...Level 1 trace information start address robust range, 512...Level 1 trace information Stack address area, 513...Level l trace information area size area,
521: Level 2 trace information start address area, 522: Level 2 trace information stack address area, 523: Level 2 trace ↑ existing information area size area.

Claims (1)

[Claims] In a program debugging method for checking the processing flow of a program by editing and outputting passing delay point names and processed information as trace information, the trace information is output at the start of program execution. a trace information editing output routine registration means for registering trace information editing and outputting means to the program; a trace information storage section for temporarily storing a certain number of the latest trace information; When a passing delay point classified into levels is reached, the passing delay point name is stored in the trace information storage section at level 1, and the passing delay point name and processed information are stored in the trace information storage section at level 2. information stacking means; securing the trace information storage section when the trace information editing output routine registration means registers the trace information editing and outputting means; A trace information output method comprising: a trace information stack address taking over means for taking over a trace information editing output means.