JPH0695916A - Interruption point setting system - Google Patents

Abstract

PURPOSE:To eliminate the setting of a useless interruption point without setting up an interruption point in a procedure not to be executed and to reduce the quantity of processing required for the setting instruction of an interruption point so as to attain rapid processing by storing the set instruction of an interruption point, and when control is transferred to another procedure or the like, retrieving the stored set instruction and setting up the interruption point when the corresponding set instruction exists in respect to an interruption point setting system for setting up an interruption point. CONSTITUTION:The interruption point setting system is provided with an interruption point setting instruction storing table 3 for storing a specified interruption point specifying position and an interruption specifying procesure name, a secondary processing part 22 for extracting an interruption specifying position corresponding to the interruption specifying procedure name from the table 3 and an interruption point setting processing part 23 for setting up an interruption point on the interruption specifying position extracted by the processing part 22 and constituted so that an execution program 4 whose interruption point is set up by the processing part 23 is executed to interrupt the program by the corresponding interruption point.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an interruption point setting method for setting an interruption point, and more particularly to an interruption point setting method for interrupting program execution.

[0002]

2. Description of the Related Art In a conventional language debugger, when a user gives an instruction about an interruption point for interrupting the execution of a program, the interruption point is actually set at all the positions that match the instruction. It was Therefore, when the instruction to set the break point from the user covers a wide range of procedures, the break points are actually set at all the matching positions. For example, in a program consisting of 1000 procedures, when an instruction to set a break point is issued at the exit of a procedure, if each procedure has 3 positions that match this instruction on average, 3000 break points are set. Had set.

[0003]

However, when a program consisting of many procedures is executed, not all the procedures are executed. Therefore, in debugging such a program, even if an instruction to set an interruption point from a user covers a wide range of procedures, the instruction is not always interrupted at all the set interruption points. In the above example, out of 1000 procedures, 5 procedures are executed.
If it is 00, it will not be executed 15 set to 500
There was a problem that 00 break points were completely meaningless.

Even if the instruction to set the break point from the user does not cover a wide range of procedures, if the specified procedure is not executed, the break point set by the instruction is completely meaningless. There was also the problem of becoming.

The present invention solves these problems.
Corresponding to the setting instruction of the interruption point, the setting instruction is saved, and when the control shifts to the procedure, the setting instruction for the procedure is searched from the saved setting instruction and the corresponding setting instruction is displayed. The purpose is to set a break point if there is one, do not set a break point for a procedure that is not executed, eliminate a meaningless break point setting, and reduce the processing amount required for setting a break point to speed up the process. There is.

[0006]

[Means for Solving the Problems] Means for solving the problems will be described with reference to FIG. In FIG. 1, the interruption point setting instruction storage table 3 stores the indicated interruption instruction position and interruption instruction procedure name.

The secondary processing unit 22 extracts the interruption instruction position corresponding to the procedure name to which the control is transferred from the interruption point setting instruction storage table 3. Break point setting processing unit 23
Is for setting an interruption point at the interruption instruction position extracted by the secondary processing unit 22.

[0008]

According to the present invention, as shown in FIG. 1, the designated interruption instruction position and interruption instruction procedure name are saved in the interruption point setting instruction storage table 3, and the secondary processing unit 22 stores the interruption point setting instruction storage table. 3, an interruption instruction position corresponding to a controlled procedure name is taken out, the interruption point setting processing unit 23 sets the interruption point at the interruption instruction position taken out by the secondary processing unit 22, and the execution program in which this interruption point is set 4 is executed and the process is interrupted at the corresponding break point.

At this time, when the execution program 4 is executed and control is transferred to the execution program 4 having another procedure name, the secondary processing unit 22 causes the interruption point setting instruction storage table 3
Then, the interruption instruction position corresponding to the procedure name of the transfer destination is taken out, the interruption point setting processing unit 23 sets the interruption point at the interruption instruction position, and then the execution of the execution program 4 is restarted to start at the corresponding interruption point. I am trying to suspend it.

When the interruption point setting processing unit 23 sets an interruption point at the interruption instruction position, the corresponding procedure name is also deleted from the interruption point setting instruction storage table 3.

Therefore, the setting instruction is stored in correspondence with the setting instruction of the interruption point, and when the control shifts to another procedure, the setting instruction for the procedure is retrieved from the stored setting instruction. However, if there is a corresponding setting instruction, an interruption point is set, and by suspending at that interruption point, no interruption point is set for procedures that are not executed, meaningless interruption point settings are eliminated, and an instruction for setting an interruption point is given. It is possible to reduce the amount of processing required for speeding up.

[0012]

DESCRIPTION OF THE PREFERRED EMBODIMENTS Next, the construction and operation of an embodiment of the present invention will be described in detail with reference to FIGS.

FIG. 1 shows a block diagram of an embodiment of the present invention.
In FIG. 1, an input unit 1 inputs various instructions, and here, an interruption point setting instruction 11 and an execution instruction 12 are input.
Is input.

The interruption point setting instruction 11 is a command for instructing the setting of the interruption point, and is, for example, AT EXIT PROG1, PROG2, PROG3. Here, AT represents a command instructing the setting of an interruption point, EXIT represents that the interruption instruction position is the exit, and PROG1, PROG2, and PROG3 represent interruption instruction procedure names for setting the interruption point.

The execution instruction 12 is a command for instructing the execution of the execution program 4, and is, for example, GO.

The processing unit 2 performs various processes such as setting an interruption point. Here, the primary processing unit 2 is used.
1, a secondary processing unit 22, a break point setting processing unit 23, a program execution processing unit 24, and the like.

The primary processing unit 21 extracts the interruption instruction position and the interruption instruction procedure name corresponding to the interruption point setting instruction 11 and stores them in the interruption point setting instruction storage table 3.

The secondary processing unit 22 refers to the interruption point setting instruction storage table 3 to retrieve the interruption instruction position corresponding to the procedure name to which the control is transferred, and requests the interruption point setting processing unit 23 to set the interruption point. It is something to do.

The interruption point setting processing section 23 sets an interruption point at the interruption instruction position requested by the secondary processing section 22 in the execution program 4. Program execution processing unit 2
Reference numeral 4 is for executing the execution program 4 in which a break point is set, and detecting a transfer of control across procedures.

The interruption point setting instruction storage table 3 is a table for storing and saving the interruption instruction position and the interruption instruction procedure name extracted from the interruption point setting instruction 11 by the primary processing unit 21.

The execution program 4 is a program to be debugged by setting break points. FIG. 2 shows an example of the interruption point setting instruction storage table of the present invention. This is a table in which the primary processing unit 21 of FIG. 1 analyzes the interruption point setting instruction 11, retrieves the interruption point setting instruction position and the interruption instruction procedure name for which the interruption instruction is given, and stores and stores them. For example, when the interruption point setting instruction 11 is AT EXIT PROG1, PROG2, PROG3, And parse and store.

FIG. 3 shows an example of an interruption point setting instruction command of the present invention. The commands described here, AT EXIT PROG1, PROG2, and PROG3, are break point setting instructions 11, AT represents a break point setting command, EXIT represents a break instruction position, and PROG1, PROG2, and PROG3 break. Indicates the name of the interruption instruction procedure for which there was an instruction to set points.

FIG. 4 shows an example of the execution instruction command of the present invention. This command GO is a command for executing the execution program 4.

Next, the operation of the configuration of FIG. 1 will be sequentially described in detail with reference to FIGS. FIG. 5 shows a processing flowchart of an interruption point setting instruction according to the present invention. This is a procedure in which the user inputs the interruption point setting instruction 11, analyzes the interruption instruction position and the interruption instruction procedure name, stores them in the interruption point setting instruction storage table 3, and saves them.

In FIG. 5, S1 analyzes the command in response to the user inputting AT EXIT PROG1, PROG2, PROG3 which is the interruption point setting instruction 11. Here, it is an AT and is analyzed as the interruption point setting instruction 11.

In step S2, it is determined whether the command is an interruption point setting instruction command. In the case of YES, the command is found to be the break point setting instruction command, and therefore the processes from S3 are performed. If NO, continue with other applicable processing.

In step S3, the setting instruction position and the setting instruction procedure name are taken out. This analyzes the command in S1 and extracts the setting instruction position (for example, EXIT) and the setting instruction procedure name (for example, PROG1, PROG2, PROG3).

In step S4, the fetched setting instruction position and setting instruction procedure name are stored in the interruption point setting instruction storage table 3. For example, as described in the interruption point setting instruction storage table 3 on the right side, And store and save.

In step S5, the secondary processing unit 22 is called. This calls the secondary processing unit 22, retrieves the interruption instruction position of the procedure name with control from the interruption point setting instruction storage table 3 as shown in the flowchart of FIG. A process of setting a break point is performed (described later).

As described above, the user gives the instruction 1 to set the break point.
In response to the input of 1, the interruption point setting instruction 11
Is analyzed, and the interruption instruction position and the interruption instruction procedure name are stored and saved in the interruption point setting instruction storage table 3. Then, when the control moves to a certain procedure name, the interruption instruction position (for example, EXIT) of the procedure name is taken out, and the interruption point is set at the position. With these, the breakpoints are set only in the procedure to which the control is transferred, but the breakpoints are not set in the procedures that are not executed. Therefore, it is possible to eliminate meaningless breakpoints and it is necessary to set the breakpoints. It is possible to reduce the number of steps.

FIG. 6 shows a processing flowchart of an execution instruction according to the present invention. This is the operation when the execution of the execution program 4 is started. In FIG. 6, S6 is
The command is analyzed in response to the user inputting the GO command. Here, it is analyzed as a GO command (execution instruction 12).

In step S7, it is determined whether the command is an execution instruction command. Y
In the case of ES, the processing after S8 is performed. In the case of NO, the corresponding processing is continued. S8 is the secondary processing unit 22
Is executed to retrieve the interruption instruction position of the procedure name to which the control is transferred from the interruption point setting instruction storage table 3 and set the interruption point at the corresponding position in the execution program 4 (described later).

In step S9, the execution program is executed. This starts the execution of the execution program 4 which sets the break point in FIG. In S10, it is determined whether or not a control transfer across procedures has occurred. In the case of YES, that is, when it is determined that the control is transferred from the program having the certain procedure name to the program having the other procedure name, the secondary processing unit 22 is called in S11, and the interruption point is set. On the other hand, if NO, the process returns to S9.

As described above, in response to the user inputting the GO command, the execution of the execution program 4 in which the break point is set is started. At this time, when a procedure name is transferred to the execution program 4 of another procedure name, the break point is set from the break point setting instruction storage table 3 to the break instruction position of the procedure name to which the control is transferred. This makes it possible to set a break point only to the procedure name to which the control is transferred, and to eliminate a meaningless break point setting.

FIG. 7 shows a flowchart for setting an interruption point according to the present invention. This is a procedure in which the secondary processing unit 22 of FIG. 1 sets an interruption point in the procedure to which the control is transferred. In FIG. 7, a step S12 takes out a procedure name having control. This retrieves the procedure name that currently has control (eg PROG1).

At step S13, based on the retrieved procedure name,
The corresponding interruption instruction position is extracted from the interruption point setting instruction storage table 3. This is because, for example, the procedure name with control (for example, P
The interruption setting position (for example, EXIT) of ROG1) is taken out.

In step S14, it is determined whether or not the corresponding interruption instruction position has disappeared. In the case of YES, all the interruption setting positions of the procedure name to which the control is transferred are fetched from the interruption point setting instruction storage table 3, and the setting of the interruption point is completed. Therefore, the processing of the secondary processing unit 22 ends. On the other hand, if NO, S
Proceed to 15.

In step S15, the interruption setting position and the procedure name are fetched, and the interruption setting processing unit 23 is called to set the interruption point to the corresponding interruption instruction position of the corresponding procedure name of the execution program 4.

S16 is an interruption point setting instruction storage table 3
Delete the procedure name at the position where the breakpoint is set from. As a result, the procedure name for which the interruption point has been set (for example, PROG1
Etc.) from the interruption point setting instruction storage table 3.
Then, the process returns to S13 and the setting of the interruption point for the next procedure name is repeated.

As described above, the secondary processing unit 22 retrieves the procedure name currently controlled from the interruption point setting instruction storage table 3 and sets all the interruption points at the interruption instruction position of this procedure name, and at the same time, the interruption point setting instruction storage table. Delete from 3. As a result, an interruption point is set at a corresponding interruption instruction position in the execution program 4 of the procedure name to which control has been transferred, meaningless setting of the interruption point is eliminated, and processing steps for setting the interruption point can be reduced.

Next, according to the procedure of the flowcharts of FIGS. 5 to 7, when the procedure name PROG1 is controlled by using FIG. 2, AT EXIT PROG1, PRO of FIG.
A specific description will be given of a case where the interruption point setting instruction command of G2 and PROG3 is instructed, then the GO execution instruction command of FIG. 4 is instructed, and the control is transferred to the procedure name PROG2. In this specific example, an example will be described in which S5 of FIG. 5 is performed and S8 of FIG. 6 is not performed.

AT EXIT PROG1 and PR shown in FIG.
The notification of the command of OG2 and PROG3 is processed in the following order according to the flowcharts of FIGS. Interruption instruction position EXIT and interruption instruction procedure name PROG1
And interruption setting procedure name PROG2 and interruption instruction procedure name PR
It is saved as OG3 as in the interruption point setting instruction saving table 3 in FIG. Also, an interruption point is set at the exit of the procedure name PROG1.

S1 → S2 YES → S3 → S4 → S5 → S
12 Procedure name PROG1 → S13 Interruption instruction position EXIT
→ S14 NO → S15 → S16 → S13 → S14 YE
S. Next, the GO command notification in FIG. 4 is processed in the following order according to the flowcharts in FIGS. 6 and 7,
When control is transferred to the procedure name PROG2, an interruption point is set at the exit of the procedure name PROG2.

S6 → S7 YES → S9 → S10 YES →
S11 → S12 Procedure name PROG2 → S13 Interruption instruction position EXIT → S14 NO → S15 → S16 → S13 → S
14 YES → S9 → ... FIG. 8 shows a flowchart for explaining the overall operation of the present invention. This is the entire operation in the specific configuration of the configuration of FIG.

In FIG. 8, S21 loads the execution program and the debug information table. This loads the execution program 4 of FIG. 1 into the main memory and also loads the debug information table 5 shown in FIG. 9 described later.

S22 is interrupted. In S23, the execution instruction command is input. The user inputs the execution instruction command “GO” described above.

In S24, the execution instruction command "G
In response to the input of "O", the execution of the execution program 4 is started. It is determined in S25 whether it is the SVC instruction. This is the SVC instruction set in the execution program 4 (instruction for passing control to the debugger). In the case of YES, the control is transferred to the debugger (the processing unit 2 in FIG. 1) and the process of S22 is interrupted, while in the case of NO, the process proceeds to S26.

In step S26, it is determined whether the instruction is a CALL instruction. This determines whether the CALL instruction for calling the execution program 4 of another procedure name is executed while the execution program 4 of a certain procedure name is being executed. In the case of YES, it is determined to move to the execution program 4 of another procedure name, so S27
Then, an interruption point for the procedure of this call destination is set (that is, the procedure name of the transition destination is taken out from the interruption point setting instruction storage table 3 and the interruption point is set at the interruption instruction position (the SVC command is set at the interruption instruction position). Embedding and saving the original instruction, which will be described later with reference to FIG. 9)). And
Return to S24.

Through the above S23 to S27, the execution instruction command GO is input to start the execution of the execution program 4, and when the SVC instruction is executed, the control is passed to the debugger (the processing unit 2 in FIG. 1) and the execution is interrupted. Alternatively, when the CALL instruction is executed and another procedure is executed, the SVC instruction is set at the interruption instruction position in the execution program 4 of the procedure name of the transfer destination, and the original instruction is saved. Repeat the execution. As a result, it is possible to embed the SVC instruction to set a breakpoint when the CALL instruction shifts to another procedure, eliminate unnecessary setting of a breakpoint, reduce the number of steps for setting a breakpoint, and increase the speed. .

FIG. 9 shows an interruption point setting flowchart of the present invention. In FIG. 9, S31 fetches the instruction address corresponding to the RETURN statement and the END statement from the debug information according to the instruction of "EXIT". This is, for example, "E" which is the interruption instruction position of the previous interruption instruction procedure name (for example, PROG1 in FIG. 2) called by the CALL instruction in FIG.
By the instruction of “XIT (exit)”, the RETURN (return instruction) for the “EXIT” and the return information from the debug information table 5 (the table that has collected the correspondence between the statement type and the instruction address at the time of compilation) described on the right side The instruction address (here, 1000, 2000) corresponding to END (indicating the end of the procedure) is fetched.

In S32, SV is added to the fetched instruction address.
The C instruction is embedded and the original instruction is saved. This is because the SVC instruction is embedded in the instruction address fetched in S31, and the instruction address fetched in S31 and the original instruction "LR" at the position of 1000 are written as described on the right side.
13 "and the original instruction at position 2000" LR13 "
Are saved in the instruction save table 6.

As described above, when the procedure is shifted to another procedure by the CALL command or the like, the interruption instruction position corresponding to the interruption instruction procedure name of the transition destination is taken out from, for example, the interruption point setting instruction storage table 3 in FIG. The instruction address corresponding to the designated position (for example, “EXIT (exit of procedure)” is fetched from the debug information table 5, the SVC instruction is embedded in the fetched instruction address, the original instruction is saved in the instruction save table 6, and the interruption point is set. Set.

[0053]

As described above, according to the present invention,
Corresponding to the setting instruction of the interruption point, the setting instruction (for example, the interruption instruction procedure name, the interruption instruction position) is saved, and when the control shifts to another procedure, the procedure is changed from the saved setting instruction. The setting instruction is searched for, and if there is a corresponding setting instruction, an interruption point is set, and the system is configured to interrupt at that interruption point. Can be eliminated, and the processing amount required to instruct the setting of the interruption point can be reduced to increase the speed.

[Brief description of drawings]

FIG. 1 is a configuration diagram of an embodiment of the present invention.

FIG. 2 is an example of an interruption point setting instruction storage table of the present invention.

FIG. 3 is an example of an interruption point setting instruction command of the present invention.

FIG. 4 is an example of an execution instruction command of the present invention.

FIG. 5 is a processing flowchart of an interruption point setting instruction according to the present invention.

FIG. 6 is a processing flowchart of an execution instruction according to the present invention.

FIG. 7 is a flowchart for setting an interruption point according to the present invention.

FIG. 8 is a flowchart for explaining the overall operation of the present invention.

FIG. 9 is a flowchart for setting an interruption point according to the present invention.

[Explanation of symbols]

 1: Input unit 11: Break point setting instruction (AT) 12: Execution instruction (GO) 2: Processing unit 21: Primary processing unit 22: Secondary processing unit 23: Break point setting processing unit 24: Program execution processing unit 3: Break point setting instruction save table 4: Execution program 5: Debug information table 6: Instruction save table

Claims (3)

[Claims] 1. In an interruption point setting method for setting an interruption point, an interruption point setting instruction storage table (3) for storing an indicated interruption instruction position and an interruption instruction procedure name, and an interruption point setting instruction storage table (3). ), A secondary processing unit (22) for taking out the interruption instruction position corresponding to the procedure instruction name of the controlled procedure, and an interruption point for setting the interruption point at the interruption instruction position fetched by the secondary processing unit (22). A setting processing unit (23) is provided, and the execution program (4) having the breakpoint set by the breakpoint setting process (23) is executed to interrupt at the corresponding breakpoint. Break point setting method. 2. When the execution program (4) is executed and control is transferred to the execution program (4) having another procedure name, the secondary processing unit (22) stores the interruption point setting instruction. The interruption instruction position corresponding to the procedure name of the transfer destination is fetched from the table (3), the interruption point setting processing unit (23) sets the interruption point at the interruption instruction position, and then the execution program (4) is executed. 5. The method is further characterized in that the operation is restarted and the operation is interrupted at a corresponding interruption point.
Breakpoint setting method described. 3. When the break point setting processing unit (23) sets a break point at a break instruction position, the corresponding procedure name is also deleted from the break point setting instruction storage table (3). The interruption point setting method according to claim 1 or 2, characterized in that.