JP2007114859A - Information processor and program relocation processing method - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide an information processor and a program relocation processing method, capable of automatically restoring relocation processing from being disabled by changing a patch or the like of an other company's product such as an OS or middleware. <P>SOLUTION: When a relocation processing necessity detection means 3 detects necessity of the relocation processing when an application 1 starts, a relocation processing start means 4 ends the application and starts an updating program 7, and a relocation processing means 5 executes the relocation processing in the application. Even if the application receives a startup instruction during execution of the relocation processing by the relocation processing means 5, an application startup suppression means 6 suppresses the startup of the application. When the relocation processing is completed, the application is restarted. <P>COPYRIGHT: (C)2007,JPO&INPIT

Description

  The present invention relates to an information processing apparatus and a program rearrangement processing method, and more particularly to an information processing apparatus and a program rearrangement processing method in which application rearrangement processing is performed statically in advance.

Great for relocation processing,
1. Change the load address of the program (EXE file, DLL file). 1. Address reference resolution in the program There is a resolution of address references to other programs that depend on (link).

  The OS [Operating System] automatically performs these rearrangement processes when the program is executed.

  For example, there is a program load method using a dynamic link that dynamically loads a dependency program (equivalent to DLL) that has been statically address-resolved in advance, thereby realizing program loading without relocation (for example, Patent Documents) 1).

In addition, since dynamic relocation processing by the OS does not occur by such a method, program load processing can be optimized, and when a plurality of applications depend on the same dependent program (DLL), Since code page rewriting by relocation processing does not occur, all code images (in memory) of dependent programs can be shared, leading to effective use of memory, and code page rewriting does not occur. Sometimes writing to the swap file does not occur, leading to effective use of the swap file.
JP-A-3-157724

  However, the above-mentioned 1. Changing the load address of the program (EXE file, DLL file) and resolving the address reference in the program is conversion of the logical address in each program, and can be optimized in advance by the software distributor. , 2. Resolving address references to other programs that depend (link) is based on the premise that one process is performed in advance in each dependent program, and the dependent program may be provided by the OS or the like. Because it exists, optimization processing is required for each installation destination environment.

  However, with respect to the process 2, if the distributed program and other programs such as the OS are modified by a patch or the like, the public address value is changed, so the effect of the process 2 is lost and the optimization is maintained. For this purpose, the process 2 is required again after the patch correction.

  Accordingly, the present invention provides an information processing apparatus and a program rearrangement processing method capable of automatically recovering from invalidation of rearrangement processing due to changes in patches of other companies' products such as OS and middleware. The purpose is to do.

  In order to achieve the above object, an invention according to claim 1 is directed to an information processing apparatus that performs relocation processing of an application and a dependent program depending on the application, and detects whether the application and the dependent program have been changed. And the relocation processing necessity detection means for detecting the necessity of the relocation processing of the dependent program, and the relocation processing is started when the necessity of the relocation processing is detected by the relocation processing necessity detection means. And a rearrangement processing means for performing a rearrangement process for the application and the dependent program.

  Further, the invention of claim 2 further comprises application activation suppressing means for suppressing activation of the application while the relocation processing means is executing the relocation processing in the invention of claim 1, The application includes the relocation processing necessity detection unit and the relocation processing start unit, and the relocation processing necessity detection unit relocates the application and the dependent program when the application is activated. It is characterized by detecting the necessity of processing.

  The invention according to claim 3 is the invention according to claim 1, wherein the relocation processing necessity detection means detects the necessity of relocation processing of the application and the dependent program when the basic software is activated. It is characterized by doing.

  According to a fourth aspect of the present invention, in the third aspect of the present invention, the first program includes the rearrangement process necessity detecting unit and the rearrangement process starting unit, and the second program includes the rearrangement unit. When the basic software is activated, only the first program is activated, and when the necessity of the rearrangement process is detected by the rearrangement process necessity detection unit, the rearrangement process starts. The setting is made for the basic software so that the second program is activated when the basic software is activated next time. When the basic software is activated next time, only the second program is activated, and the relocation is performed. The processing means implements a rearrangement process for the application and the dependent program.

  The invention according to claim 5 is the program relocation processing method for performing the relocation processing of the application and the dependent program depending on the application, wherein the relocation processing necessity detecting means detects whether or not the application and the dependent program are changed. Detecting and detecting the necessity of the rearrangement process of the application and the dependent program, and when the necessity of the rearrangement process is detected, the rearrangement process start means performs a process for starting the rearrangement process The relocation processing means implements relocation processing for the application and the dependent program.

  Further, in the invention of claim 6, in the invention of claim 5, when the application includes the relocation processing necessity detection unit and the relocation processing start unit, the relocation is performed when the application is activated. The arrangement processing necessity detection means detects the necessity of the application and the dependency program relocation processing, and the application activation control means suppresses the activation of the application while the relocation processing is being performed. And

  The invention according to claim 7 is the invention according to claim 5, wherein the relocation processing necessity detection means detects the necessity for the relocation processing of the application and the dependent program when the basic software is activated. It is characterized by doing.

  The invention according to claim 8 is the invention according to claim 7, wherein the first program includes the relocation processing necessity detection means and the relocation processing start means, and the second program stores the relocation processing means. When the basic software is activated, only the first program is activated, and when the necessity of the rearrangement process is detected by the rearrangement process necessity detection unit, the rearrangement process starts. The setting is made for the basic software so that the second program is activated when the basic software is activated next time, and when the basic software is activated next time, only the second program is activated, The arrangement processing means executes a rearrangement process for the application and the dependent program.

  According to the present invention, by detecting the presence or absence of patches of other programs such as OS and middleware that depend on the application and automatically resolving the address reference to the link destination program, optimization of program startup, memory It is possible to maintain effective use and effective use of the swap file.

  Embodiments of an information processing apparatus and a program rearrangement processing method according to the present invention will be described below in detail with reference to the accompanying drawings.

  FIG. 1 is a diagram showing a first example of a possible combination of methods for realizing each means of the constituent elements of the present invention.

  In the first embodiment, a configuration for detecting the necessity of rearrangement processing when an application is activated will be described.

  The configuration requirements of the present invention include a relocation processing necessity detection unit 3 that detects whether each dependent program 2 (that is, a dependent DLL [Dynamic Link Library]) on which the application 1 depends has been changed by a patch, and the like. The rearrangement process start unit 4 that starts the rearrangement process when the necessity of the rearrangement process is detected by the processing necessity detection unit 3, and the rearrangement process that is executed by the start of the rearrangement process start unit 4 The arrangement processing means 5 and the application activation suppressing means 6 for suppressing the activation of the application 1 while the rearrangement processing means 5 performs the arrangement processing.

  As shown in FIG. 1, an application 1 having a dependency program 2 (dependency DLL1, dependency DLL2,..., Dependency DLLN) includes a rearrangement process necessity detection unit 3 and a rearrangement process start unit 4. The update program 7 that is activated when it is detected that there is a necessity is provided with relocation processing means 5 and application activation suppression means 6.

  The functional operation of each of these means will be described.

  When the application 1 is activated, the rearrangement process necessity detection unit 3 in the application 1 detects the necessity of the rearrangement process.

  As a detection method, each code page area of the loaded program (a page on which a program code on a virtual address is arranged) is Dirty (swap at page-out) indicating that dynamic relocation processing has been performed by the OS. Whether writing to a file is necessary) or Read Only (not Dirty). If Read Only, it is determined that there is no need for relocation processing, and if it is Dirty, it is determined that relocation processing is necessary (that is, dynamic relocation processing has been performed by the OS → Appropriate static is placement processing → relocation processing is required).

In addition to the determination of Dirty,
(A) A list of dependent programs, and a reference destination list shown in FIG. 5 which is a list of reference addresses and logical names for each dependent program (note that the reference destination list is all programs (for example, EXE, DLL, etc.) ) Originally has an unrelated to the present invention) (b) A reference address is extracted using a logical name as a key for each program extracted in the process of (a), and a reference destination The necessity of relocation processing may be detected by comparing the symbol information, which is a list of the program's own logical name and address pair, and checking whether the corresponding address has been changed. When these processes are completed, the investigation result is created in advance as a rearrangement process candidate list, and the rearrangement process candidate list is passed to the update program 7 to be started thereafter.

  When the necessity of the rearrangement process is detected by the rearrangement process necessity detection unit 3, the rearrangement process start unit 4 in the application 1 starts the rearrangement process. Note that as the start timing of the rearrangement process, the application 1 is terminated for updating, and the updating program 7 is started at the same time.

  When the update program 7 is activated, the rearrangement processing means 5 in the update program 7 performs the rearrangement process.

  When the relocation processing necessity detection unit 3 performs only Dirty determination, the relocation processing unit 5 performs the above-described processes (a) and (b) on the application 1 and the dependent program 2. The reference destination list is updated with respect to the reference destination address where the change is detected.

  Further, when the rearrangement process necessity detection unit 3 performs the process (a) and the process (b) together with the determination of Dirty, the rearrangement process necessity detection unit 3 creates the rearrangement process candidate list created by the rearrangement process necessity detection unit 3. The reference destination list is updated with respect to the address of the reference destination received and received based on the rearrangement process candidate list.

  The application activation suppression means 6 in the update program 7 suppresses activation of the application 1 while the relocation processing means 5 is executing the relocation processing.

  As a suppression method, a method for temporarily revoking the execution authority of the program (EXE) of the application 1 or a startup program for starting the application 1 is prepared, and only the startup program can be directly referred to by the user. For example, there is a method for checking whether or not the update program is activated and determining whether or not the application 1 can be activated.

  When the rearrangement processing unit 5 finishes the rearrangement process, the update program 7 cancels the application activation suppression and restarts the application 1.

  Next, the flow of processing performed by the application and the update program will be described with reference to the flowchart shown in FIG.

  When the application is activated (step S201), the necessity of relocation processing in the application is detected (step S202).

  If it is detected that the rearrangement process is not necessary (NO in step S203), the process ends. If it is detected that the rearrangement process is necessary (YES in step S203), the application is terminated ( Step S204), the update program is started (Step S205), the update program performs relocation processing in the application (Step S206), and if the application does not accept the start command (NO in Step S207), Step Proceeding to S209, and if the application receives an activation command (YES in step S207), activation of the application is suppressed (step S208).

  When the rearrangement process ends (YES in step S209), the application is restarted (step S210), and the process ends.

  In the first embodiment, the configuration in which the application includes the rearrangement process necessity detection unit and the rearrangement process start unit has been described. However, a program other than the application and the update program includes these units, The present invention can also be applied to a configuration in which the necessity of relocation processing in an application is detected by a program.

  In the first embodiment, the configuration for detecting the necessity of the rearrangement process when the application is activated has been described. However, the configuration for detecting the necessity of the rearrangement process at the end of the application is also applicable.

  FIG. 3 is a diagram showing a second example of a possible combination of methods for realizing each means of the constituent elements of the present invention.

  In the second embodiment, a configuration for detecting the necessity of the rearrangement process when the OS is started will be described.

  The configuration requirements of the present invention include a relocation processing necessity detection unit 3 that detects whether each dependent program 2 (that is, a dependency DLL) on which the application 1 depends has been changed by a patch or the like, and a relocation processing necessity detection unit A rearrangement processing start unit 4 for starting the rearrangement processing when the necessity for the rearrangement processing is detected in 3; and a rearrangement processing unit 5 for executing the rearrangement processing by the start of the rearrangement processing start unit 4; Consists of.

  As shown in FIG. 3, the application 1 has a dependency program 2 (dependency DLL1, dependency DLL2,..., Dependency DLLN), and the relocation processing necessity detection program 9 that is activated when the OS 8 is started up requires the relocation processing. The update program 7 that includes the detection unit 3 and the rearrangement process start unit 4 and detects that the rearrangement process is necessary and is started when the next OS 8 is started up includes the rearrangement unit 5. Yes.

  The functional operation of each of these means will be described.

  When the OS 8 is activated, the relocation processing necessity detection program 9 is activated in the background when the OS 8 is activated, and the relocation processing necessity detection unit 3 of the relocation processing necessity detection program 9 performs the relocation processing of the application 1. Detect the need for

  As a detection method, the following processing is recursively performed on the application 1 and the dependent program 2.

(A) Processing for extracting a dependent program from the reference destination list shown in FIG. 5 which is a list of dependent programs and a list of pairs of reference addresses and logical names for each dependent program. For each program, a reference address is extracted using a logical name as a key, and compared with symbol information that is a list of a pair of a logical name and an address of a reference destination program, and checks whether the corresponding address has been changed. If there is a change in the corresponding address, it is determined that there is a need for relocation processing, and if there is no change in the corresponding address, it is determined that there is no need for relocation processing. When these processes are completed, the investigation result is created in advance as a rearrangement process candidate list, and the rearrangement process candidate list is passed to an update program that is started thereafter.

  When the necessity of the rearrangement process is detected by the rearrangement process necessity detection unit 3, the rearrangement process start unit 5 in the rearrangement process necessity detection program 9 updates the OS 8 with the update program at the next startup of the OS 8. 7 is activated. This is performed by the same mechanism as the post-processing associated with restarting the OS 8 in normal software installation / uninstallation.

  In this case, since the activation of the OS 8 is not completed until the rearrangement process is completed, the application activation suppressing unit 6 which is a configuration requirement of the invention is not necessary in the second embodiment.

  Then, when the update program 7 is activated at the next activation of the OS 8, the relocation processing means 5 in the update program 7 performs the relocation processing.

  The rearrangement processing unit 5 receives the rearrangement process candidate list created by the rearrangement process necessity detection unit 3, and refers to the reference destination address whose change is detected based on the rearrangement process candidate list. Update the list.

  When the rearrangement processing unit 5 finishes the rearrangement process, the activation of the OS 8 is completed.

  Next, the flow of processing performed by the relocation processing necessity detection program and the update program will be described with reference to the flowchart shown in FIG.

  When the OS is activated (step S401), the relocation processing necessity detection program is activated (step S402), and the necessity of the relocation processing in the application is detected (step S403).

  If it is detected that the rearrangement process is not necessary (NO in step S404), the process ends. If it is detected that the rearrangement process is necessary (YES in step S404), the next time the OS is started. The OS is set to start the update program (step S405).

  When the OS is activated (YES in step S406), the update program is activated (step S407), and the update program performs relocation processing in the application (step S408).

  When the rearrangement process ends (YES in step S409), the process ends when the activation of the OS is completed (YES in step S410).

  The present invention is not limited to the embodiments described above and shown in the drawings, and can be implemented with appropriate modifications within the scope not changing the gist thereof.

It is a figure which shows Example 1 of the possible combination of the realization method of each means of the structural requirement of this invention. It is a flowchart which shows the flow of the process performed with an application and the program for an update. It is a figure which shows Example 2 of the possible combination of the realization method of each means of the component requirements of this invention. It is a flowchart which shows the flow of the process performed by the rearrangement process necessity detection program and the update program. It is a figure explaining a reference place list.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Application 2 Dependent program 3 Relocation processing necessity detection means 4 Relocation processing start means 5 Relocation processing means 6 Application activation suppression means 7 Update program 8 OS
9 Relocation processing necessity detection program

Claims (8)

In an information processing apparatus that performs rearrangement processing of an application and a dependent program that depends on the application,
Relocation processing necessity detection means for detecting whether or not the application and the dependent program have been changed, and detecting the necessity of relocation processing of the application and the dependent program;
When the necessity of the rearrangement process is detected by the rearrangement process necessity detection unit, a rearrangement process start unit that performs a process for starting the rearrangement process;
An information processing apparatus comprising: a rearrangement processing unit that performs a rearrangement process on the application and the dependent program. An application activation suppression unit that suppresses activation of the application while the relocation processing unit performs the relocation processing;
The application is
Including the rearrangement process necessity detection unit and the rearrangement process start unit;
The relocation processing necessity detection means includes:
The information processing apparatus according to claim 1, wherein when the application is activated, the necessity of relocation processing of the application and the dependent program is detected. The relocation processing necessity detection means includes:
The information processing apparatus according to claim 1, wherein the necessity of relocation processing of the application and the dependent program is detected when basic software is activated. When the first program includes the rearrangement processing necessity detection unit and the rearrangement processing start unit, and the second program includes the rearrangement processing unit,
When the basic software is activated, only the first program is activated,
When the necessity of the rearrangement process is detected by the rearrangement process necessity detection unit, the basic software is set so that the second program is started when the rearrangement process start unit starts the basic software next time. When the basic software is started next time, only the second program is started,
The information processing apparatus according to claim 3, wherein the relocation processing unit performs relocation processing on the application and the dependent program. In a program relocation processing method for performing relocation processing of an application and a dependent program depending on the application,
Relocation processing necessity detection means detects whether or not the application and the dependent program have been changed, detects the necessity of relocation processing of the application and the dependent program,
When the necessity of the rearrangement process is detected, the rearrangement process start means performs a process for starting the rearrangement process,
A program rearrangement processing method, wherein the rearrangement processing means performs rearrangement processing on the application and the dependent program. When the application includes the rearrangement process necessity detection unit and the rearrangement process start unit,
When the application is activated, the relocation processing necessity detection unit detects the necessity of the relocation processing of the application and the dependent program,
The program relocation processing method according to claim 5, wherein the application activation control unit suppresses activation of the application while the relocation processing is being performed. The relocation processing necessity detection means includes:
6. The program relocation processing method according to claim 5, wherein when the basic software is activated, the necessity of relocation processing of the application and the dependent program is detected. When the first program includes the rearrangement processing necessity detection unit and the rearrangement processing start unit, and the second program includes the rearrangement processing unit,
When the basic software is activated, only the first program is activated,
When the necessity of the rearrangement process is detected by the rearrangement process necessity detecting unit, the basic software is set so that the second program is started when the rearrangement process starting unit starts the basic software next time. To
When the basic software is activated next time, only the second program is activated.
The program rearrangement processing method according to claim 7, wherein the rearrangement processing unit performs a rearrangement process on the application and the dependent program.

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