JPH01231137A - Trace information output system - Google Patents

Abstract

PURPOSE:To reduce the quantity of trace information to be outputted after having included necessary trace information by dividing a passing derail point for outputting the trace information into a level 1 and a level 2, and storing temporarily the trace information of a prescribed size in a trace information store part in accordance with each level. CONSTITUTION:A trace information store part 5 stores temporarily a 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 the course of executing a program, a trace information stack means 2 decides automatically the level of the passing derail point. Subsequently, a passing derail point name, and the passing derail point name and processed information are stored 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 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 transfer trace information to vA.
The object of the present invention is to provide a trace information output method that outputs trace information that is narrowed down to the necessary minimum based on the information collected.

[Means to solve the problem]

The trace information output method of the present invention is a program debugging method that checks the flow of program processing by editing and outputting 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 information in a program; a trace information storage section for temporarily storing a certain number of latest trace information; When reaching a passing delay point divided into levels 1 and 2, the level of the passing i1A tiller point is automatically determined, and as trace information, the passing delay point name at level 1 and the passing delay point at level 2 are displayed. trace information stack means for storing the name and processed information in the trace information storage section; and a trace information stack means for securing the trace information storage section when registering the trace information II collection output means by the trace information editing output routine registration means; The trace information stack address takeover means takes over the storage address of the trace information in the trace information storage section to the trace information stack means and the trace information editing output means.

[Effect]

In the trace information output method of the present invention, the trace information editing output routine registration means registers in the program the trace information editing output means that outputs trace information at the start of execution of the program, and the trace information storage section stores a certain number of latest trace information. is temporarily stored, and the level of the passing delay point is automatically determined when the trace information stacking means reaches a passing delay point that is divided into levels 1 and 2 in advance during program execution. As trace information, the passing delay point name at level 1 and the passing delay point name and processed information at level 2 are respectively stored in the trace information storage section, and the trace information stack address inheritance means is based on the trace information editing output routine registration means. When registering the trace information editing and outputting means, a trace information storage section is secured and the trace information storage address of the trace information storage section is handed over to the trace information stacking means and the trace information editing and outputting 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 and output routine registration means 1, trace information stacking means 2, trace information editing and outputting means 3, trace information stack address inheritance means 4, and trace information storage section 5. There is.

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 storage section 52 consists of a level 2 trace information start address area 521, a level 2 trace information stack address area 522, a level 2 trace information 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 W collection output process, the program (not shown) allows the operating system (not shown) to automatically transfer control to the trace information editing and outputting means 3 in the event that the program terminates abnormally. The trace information editing output routine registration means 1 is called to register the trace information &l collection output means 3 so that the trace information &l collection output means 3 can be registered.

The trace information editing output routine registration means 1 called by the program performs a registration process for the trace information editing output means 3.

Next, the trace information stack address takeover means 4 secures the level I trace information storage section 51 and level 2 trace information storage section 52 in the trace information storage section 5, and stores the level I trace information storage section 51 in the level I 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 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 that he or she deems 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. A procedure for calling the trace information stack means 2 at the passing delay point is incorporated.

For example, when a predetermined passing delay point is reached during execution of the program, the program calls the trace information stack means 2.

The trace information stack means 2 called by the program automatically determines the level of the passing delay point.

If the level of the passing delay point is determined to be level 1, the trace information stack means 2 uses the trace information stack address transfer means 4 to set the level of the level 1 trace information stack address area 512 of the level 1 trace information storage section 51. The l trace information stack address is obtained, the passing delay point name of the passing delay point is stored in the level l trace information storage area 514, and the level l trace information stack address area 512 is stored.
Update the level 1 trace information stack address of.

When the level 1 trace information stack address exceeds the box surface of the level 1 trace information storage area 514, the level 1 trace information stack address is stored in the level 1 trace information stack address area 512 as the level 1 trace information stack address. Set the level 1 trace information start address.

When the level of the passing delay point is determined to be level 2, the trace information stack means 2
In the same process as when it is determined that the passing delay point name and the processed information of the passing delay point are The level 2 trace information stack address in the level 2 trace information stack address area 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, since the trace information tins output means 3 is registered as a corresponding routine by the trace information edit output routine registration means 1, the trace information edit output means 3 is automatically called.

The trace information editing output means 3 called by the operating system obtains the level l trace information stack address of the level l trace information stack address area 512 of the level 1 trace information storage section 51 by the trace information stack address inheritance means 4, and executes the round. The passing delay point names stored in the level l trace information storage tII area 514 in the order of tropin are set to [1] and output.

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

The trace information editing and 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 storage section 52 in the same manner. 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, in the present invention, the passing delay points for which trace information is to be output are divided into level 1 and level 2, and trace information of a fixed size is temporarily stored in the trace information storage unit corresponding to each level. By editing and outputting a certain number of stored trace information in the order of round tropins when the program terminates abnormally, it covers all the trace information necessary to check the flow of program processing. 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, l...Trace information line Tsukiyama caroutine registration means, 2...Trace information stack means, 3...Trace information editing output means, 4...Trace information stack address inheritance means, 5...Trace Information storage unit, 51...Level 1 trace information storage unit, 52...
Level 2 trace information storage unit, 511...Level 1
Trace information start address area, 512... Level 1 trace information stack address area, 513... Level I 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 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. 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 reaching a passing delay point that is divided into levels, the level of the passing delay point is automatically determined and the trace information is processed as the passing delay point name at level 1 and the passing delay point name at level 2. trace information stacking means for storing information in the trace information storage section; and trace information stacking means for storing information in the trace information storage section; A trace information output method comprising: trace information stack address takeover means for taking over a storage address of trace information to the trace information stack means and the trace information editing output means.