JPH05225090A - Remote debugging system - Google Patents

Abstract

PURPOSE:To collect and display information for the execution programs distributed on computers over the communication network. CONSTITUTION:A debugger control means 52 transfers the direction inputted by a user to execution program control means 53 and 61 on the computers distributed over the network. The execution program control means 53 and 61 make the directed operation over execution programs 55 and 62 and returns the result to the means 52. The debugger control means 52 suggests the result to a user via an interface control means 51.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an execution program control method for debugging an execution program running on a plurality of computers connected by a communication network.

[0002]

2. Description of the Related Art When debugging a system composed of a plurality of execution programs operating on a plurality of computers connected by a communication network, conventionally, the information of the execution programs is collected and presented collectively. There was no formula. Therefore, it is necessary for the developer to explicitly insert a means for collecting and presenting information in the execution program.

[0003]

The method of inserting the means for the developer of the execution program to explicitly collect and present the information has the following problems. 1. The size of the execution program becomes large. 2. When the information collected and presented changes, the means for inserting must also change accordingly. 3. When the means for collecting and presenting information changes, it is necessary to recreate the execution format of the execution program. 4. Accurate information cannot be gathered without inserting a means between every execution step and the next step.

[0004]

SUMMARY OF THE INVENTION According to the present invention, data transmission and reception is performed by sequentially transmitting and receiving control on each of a local computer and a remote computer on two or more computers including heterogeneous computers by a communication network. For execution programs that operate in cooperation with each other, there are user interface control means for controlling input / output to the user, debugger control means for controlling the operation of the entire debugger, and execution programs on a local or remote computer. It has an execution program control means for controlling the execution program and a communication means for exchanging data between the local computer and the remote computer.

In addition to the above-mentioned means, the present invention resides in a local computer and a remote computer for an execution program that operates independently and locally on each of a local computer and a remote computer to exchange data. It has a matrix means for arranging and holding data from a plurality of execution programs.

[0006]

【Example】

(Embodiment 1) An embodiment in which an execution program on a local computer and an execution program on a remote computer are sequentially operated in synchronization with each other will be described.

FIG. 1 is a block diagram showing the system configuration of this embodiment.

In the figure, the local computer 10
Is a computer that can be directly used by the user at hand, and the remote computer 20 is the communication network 3
It is connected to the local computer 10 through 0 and can exchange data with the local computer. The user interface control means 11 on the local computer is means for controlling data input / output between the user and the present invention. The debugger control means 12 collects information from the execution program control means on the local and remote computers and sends a command to the execution program control means to control the operation of the execution program. The execution program control means 13 and 21 control the execution programs 15 and 22 operating on each computer. The communication means 14 and 23 guarantee the exchange of data, commands and control between the debugger control means 12 and the execution program control means 21. The functions of the debugger in this embodiment are as follows. 1. Designation and cancellation of operation stop points 2. State transition to the next execution step 3. Reference of values in data storage area 4. Resuming Normal Execution First, the operation of the function for designating the operation stop point will be described based on the processing flow shown in FIG. 2. The user issues a command to the debugger via the user interface control means 11 to set the operation stop point. Issue. The user interface control means 11 converts the command into an internal format that can be interpreted by the debugger control means 12 and passes it to the debugger control means 12 (FIG. 2).
911). Next, the debugger control means 12 analyzes this instruction and issues an instruction to stop the program at the designated stop position to the execution program control means 13 and 21 for controlling the execution programs existing on the local computer and the remote computer (see FIG. 2). 912). At this time, if a command is issued to the execution program means 21 on the remote computer, it is sent via the communication means 14 and 23.
When the execution program controlled by itself includes the designated location (913 in FIG. 2), the plurality of execution program control means which have received the command set data to the execution program so as to stop at that location, and The stop location is stored as internal data (914 in FIG. 2). If you remember
It responds to the debugger control means 12 that it has set its own feature and the stopping point (915 in FIG. 2). If it is not included, it replies that it has not been able to set its own feature and stop location (916 in FIG. 2). In response to the reply, the debugger control means 12 attaches the number 31 to the execution program control means 33 and the stop location 32 that have returned the fact that the stop location can be set and stores them as internal data in the format shown in FIG. 3 (FIG. 2). 917). If no setting is returned, the user interface control unit 11 is notified of the error, and the user interface control unit 11 notifies the user of the error (918 in FIG. 2).

Next, the operation of the function of releasing the operation stop portion will be described.

As in the case of the setting, the debugger control means 12 which has received the release command from the user via the user interface control means 11 matches the command from the user from the internal data of the operation stop portion of the format shown in FIG. Search for a stopping point. If the operation stop location is found, the execution program control means name corresponding to the stop location is extracted from the internal data, and a command for canceling the specified operation stop location is sent to the execution program control means. The execution program control means, which has received the cancellation command, initializes the stop position in the execution program and also initializes the internal data. The debugger control means 12 indicates that the execution program control means has been released.
When the debugger control means 12 finds that it has been released, it deletes all the data relating to the released stopping point from the internal data shown in FIG.

Next, the operation of the function in which the execution program stops at the designated execution stop position and the state transitions to the next execution step in response to a command from the user will be described.

[0012] When the execution program at the operation stop location has reached the execution location, it notifies the execution program control means to that effect. The notified execution program control means is the communication means 23 in the case of a remote computer.
The debugger control means 12 is informed of the stoppage via 14 and 14, and the debugger control means 12 stores the execution program control means for the currently stopped execution program. Further, the user is notified of that fact via the user interface control means 11. The user can give an instruction to transit to the next execution step to the stopped execution program. This operation will be described according to the flow shown in FIG. The user transmits a command for transition to the next execution step to the debugger control means 12 via the user interface control means 11 (92 in FIG. 4).
1). The debugger control means 12 sends an instruction to transit to the next execution step to the execution program control means for the currently stopped execution program (92 in FIG. 4).
2). At this time, if it is sent to the execution program control means 21 existing on the remote computer, it is sent via the communication means 14 and 23. The execution control means that has received the command shifts the execution program to the next execution step (see FIG.
923), and notifies the debugger control means to that effect (924 in FIG. 4).

The operation of referring to the value in the data storage area of the stopped execution program is similar to the above-mentioned execution step transition. The difference is that the command sent to the execution program control means is a command to refer to in the data storage area, and not only the notification of whether the data returned from the execution program control means has succeeded, but also the referred value is included. That is what is done.

The operation of resuming the normal execution also operates in the same manner as the execution step transition. However, after the execution program control means restarts the execution of the execution program, and the debugger control means is notified to that effect, the debugger control means initializes the execution program control means for the stored execution program that has been stopped. .. (Embodiment 2) Next, an embodiment for claim 2 will be described. This embodiment is an example in which an execution program on a local computer and an execution program on a remote computer operate independently while exchanging data.

FIG. 5 is a block diagram showing the system configuration of this embodiment.

In this embodiment, since a plurality of execution programs operate independently, the debugger control means 52 may receive a notification from the plurality of execution program control means that execution has stopped. The queue means 56 arranges and accumulates the notifications so that the debugger control means 52 can process them successively. Then, the debugger control means 52 takes out and processes the notifications in the order of arrival.

Except for the above points, the same operation as in the embodiment for claim 1 is performed.

[0018]

According to the present invention, a developer explicitly collects and presents information in an execution program when debugging during development of the execution program operating on a plurality of computers connected by a communication network. Since the means need not be embedded, the size of the execution program can be reduced.

Further, the information to be collected and presented and the changing procedure when the means are changed are not required, and the effect that the time and the number of steps can be reduced can be obtained.

[Brief description of drawings]

FIG. 1 is a system configuration diagram of the present invention for claim 1;

FIG. 2 is a flowchart of a stop location setting process.

FIG. 3 shows the internal data format of the debugger control means.

FIG. 4 is a flowchart of an operation of transitioning to a next execution step.

FIG. 5 is a system configuration diagram of claim 2 of the present invention.

[Explanation of symbols]

 10 Local Computer 11 User Interface Control Means 12 Debugger Control Means 13 Execution Program Control Means 14 Communication Means 15 Execution Programs 20 Remote Computer 21 Execution Program Control Means 22 Execution Programs 23 Communication Means 30 Communication Networks 31 Registration Number 32 Stop Location 31 Execution Program Control Means 50 Local computer 51 User interface control means 52 Debugger control means 53 Execution program control means 54 Communication means 55 Execution program 56 Matrix means 60 Remote computer 61 Execution program control means 62 Execution program 63 Communication means 70 Communication network

Claims (2)

[Claims] 1. On two or more computers including heterogeneous computers connected by a communication network, a computer in the user's hand (hereinafter referred to as a local computer) and a plurality of remote computers connected by the communication network. Is implemented on a computer (hereinafter referred to as a remote computer), and exists for a user interface control unit that controls input and output to a user, a debugger control unit that controls the operation of the entire debugger, and an execution program on a local or remote computer. And an execution program control means for controlling the execution program and a communication means for exchanging data between the local computer and the remote computer,
(A) Designation and cancellation of the operation stop location, and (b) Next execution for the execution program that operates in cooperation with each other by exchanging data while sequentially exchanging control on the local computer and remote computer respectively. A remote debugging method characterized in that a local computer is capable of performing a state transition to a step, (c) referencing a value in a data storage area, and (d) resuming normal execution. 2. A matrix means for arranging and holding data from a plurality of execution programs on the local computer and the remote computer is provided, and the data transfer is performed independently on each of the local computer and the remote computer. With respect to the execution program that operates by maintaining the cooperation, (a) designation and cancellation of the operation stop location, (b) state transition to the next execution step, (c) reference of the value in the data storage area, (d) The remote debugging method according to claim 1, wherein the operation of resuming normal execution is enabled from the local computer.