JP2001067393A - Library management method for lsi design tool - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a library management method which can acquire the version information on a library for design tool corresponding to the version of another library for design tool. SOLUTION: This library management method includes a library object storing means 1 which stores the libraries for design tool and the library information, a unified version storing means 2 which manages the version information among libraries for design tool and a configuration information storing means 3 which stores the configuration information on both means 1 and 2, and relates the versions of the libraries for design tool each with other.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method for managing a library for a design tool, and more particularly to a design environment for performing an LSI design by combining a plurality of independent design tools corresponding to an LSI design phase such as logic design and simulation. The present invention relates to a method for managing a library for an LSI design tool.

[0002]

2. Description of the Related Art In library management, version management among various libraries existing in a plurality of management units (library series or the like) is performed as follows. For example, S which is a version number management system on UNIX
Individual management for each library using CCS, RCS, etc.,
A method of manually creating and managing a management table in which the relationship between various libraries is separately defined is adopted.

A library management system has also been proposed in which means for associating a plurality of libraries and checking means are provided to ensure consistency between the libraries.

[0004]

In such a conventional version control method, when a library is updated or changed, the library manager manually corrects the target library sequentially, thereby causing a human error. There is a problem that library inconsistency is likely to occur due to this.

Also, in the above-described library management system having the association between a plurality of libraries and the same checking means, the correlation between various libraries (for example, the state of another library when one library is updated and the other library should be in the expected state) Changes) can be managed, but there is no mention of a means of managing them in terms of versions.

For this reason, it is difficult to obtain individual version information of another library corresponding to a specific library version in a certain management unit.
There is a problem that the handling of library version information cannot be flexibly handled. An object of the present invention is to provide a library management method capable of maintaining the configuration relationship of library versions between design tools at the time of library version up and clarifying usable libraries.

[0007]

According to a first aspect of the present invention, there is provided a method for managing a library for an LSI design tool according to the first aspect of the present invention, which includes at least a version indicating a version number of the library for the LSI design tool in addition to a library entity (hereinafter referred to as a version). And L
Basic function operation of the library for SI design tool (for example,
A library object having information (hereinafter, referred to as cell information) relating to cells representing AND, OR, INV, and the like, and information (hereinafter, referred to as tool information) relating to the type of an LSI design tool. In particular, the case where the library object is handled by focusing on the cell object is defined as a cell library, and the case where the library object is handled by focusing on the information of cells and tools is defined as the cell tool library. A library object storing step of storing a tool library, a unified version storing step of managing version information in the cell library, and configuration information storing configuration information between the library object storing step and the unified version storing step Containment Characterized in that it has and.

According to a second aspect of the present invention, there is provided a method of managing a library for an LSI design tool according to the first aspect, wherein the information stored in the unified version storing step is replaced with tool information instead of the version information of the cell library. Is the version information of the tool library when the library object is handled by paying attention to. Claim 3 of the present invention
In the method for managing a library for an LSI design tool according to claim 1, when at least one library for a cell tool is updated, a plurality of libraries for a cell tool associated with information included in the configuration information storing step are individually set. The storage area that is stored is newly provided uniformly,
In addition, a unified version number is assigned, and the unified version number is stored in the storage area in the unified version storing step, thereby performing version unification between the cell tool libraries.

According to a fourth aspect of the present invention, in the method of managing a library for an LSI design tool according to the second aspect, when at least one cell tool library is updated, the library is associated with information included in the configuration information storing step. By uniformly providing a new storage area in which a plurality of cell tool libraries are individually stored, and giving a uniform version number, and storing the unified version number in the storage area in the unified version storing step, Unify versions between cell tool libraries.

According to a fifth aspect of the present invention, in the method of managing a library for an LSI design tool according to the third aspect, the library object storing step includes the step of storing version information of a storage area storing the latest cell tool library. If the storage area specified by the unified version number does not have a library entity, a location where the library entity is stored is designated using the latest version information.

According to a sixth aspect of the present invention, in the method of managing a library for an LSI design tool according to the fourth aspect, the library object storing step includes the step of storing version information of a storage area storing the latest cell tool library. If the storage area specified by the unified version number does not have a library entity, a location where the library entity is stored is designated using the latest version information.

According to a seventh aspect of the present invention, there is provided a method of managing a library for an LSI design tool according to the fifth aspect, wherein the latest version of the library for a cell tool stored in the storage area of the library object storing step is stored. In place of the information, the previous version is stored, and when the storage area designated by the unified version number has no library entity, the library entity is used by using the previous version information. Specify the location where is stored.

According to an eighth aspect of the present invention, there is provided a method of managing a library for an LSI design tool according to the sixth aspect, wherein the latest version of the library for a cell tool stored in the storage area of the library object storing step is stored. In place of the information, the previous version is stored, and when the storage area designated by the unified version number has no library entity, the library entity is used by using the previous version information. Specify the location where is stored.

According to a ninth aspect of the present invention, in the method of managing a library for an LSI design tool according to the ninth aspect, the library object storing step includes the steps of:
It has status information that can at least represent the status of creation unnecessary, creation stop, use prohibition, or release, and specifies the location where the library entity is stored based on the status information.

According to a tenth aspect of the present invention, in the method of managing a library for an LSI design tool according to the sixth aspect, the library object storing step includes a step of determining whether the library is being created, creation unnecessary, creation stop, use prohibition or release. It has at least expressible status information, and specifies the location where the library entity is stored based on the status information.

According to a seventh aspect of the present invention, in the method of managing a library for an LSI design tool according to the seventh aspect, the library object storing step includes the steps of determining whether the library is being created, creation unnecessary, creation cancellation, use prohibition or release. It has at least expressible status information, and specifies the location where the library entity is stored based on the status information.

According to a twelfth aspect of the present invention, there is provided a method for managing a library for an LSI design tool according to the eighth aspect, wherein the library object storage means determines whether the library is being created, creation unnecessary, creation stop, use prohibition or release. It has at least expressible status information, and specifies the location where the library entity is stored based on the status information.

According to a thirteenth aspect of the present invention, there is provided a library management device for an LSI design tool, comprising: a library information database in which the configuration described in the ninth aspect is used as a basic unit; A library information management unit including a library configuration information management unit, a version information management unit, and a library attribute information management unit for managing an information database; a library input / output unit for inputting / outputting library information; And a library access unit for transmitting the above information to the library information management unit and the library information database.

According to a fourteenth aspect of the present invention, there is provided an LSI design tool library management apparatus comprising: a library information database in which the configuration described by the method according to the tenth aspect is used as a basic unit; A library information management unit including a library configuration information management unit, a version information management unit, and a library attribute information management unit for managing an information database; a library input / output unit for inputting / outputting library information; And a library access unit for transmitting the above information to the library information management unit and the library information database.

According to a fifteenth aspect of the present invention, there is provided a library management device for an LSI design tool, comprising: a library information database in which the configuration described in the method according to the eleventh aspect is used as a basic unit; A library information management unit including a library configuration information management unit, a version information management unit, and a library attribute information management unit for managing an information database; a library input / output unit for inputting / outputting library information; And a library access unit for transmitting the above information to the library information management unit and the library information database.

According to a sixteenth aspect of the present invention, there is provided an LSI design tool library management apparatus comprising: a library information database in which the configuration described in the twelfth aspect is used as a basic unit; A library information management unit including a library configuration information management unit, a version information management unit, and a library attribute information management unit for managing an information database; a library input / output unit for inputting / outputting library information; And a library access unit for transmitting the above information to the library information management unit and the library information database.

According to the structure of the present invention, a plurality of LSIs
The unified version makes it possible to clearly link the library versions of the design tool with each other, so that inconsistencies in the library due to human error can be suppressed. Version information can be easily obtained.

[0023]

DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, a library management method for an LSI design tool according to the present invention will be described based on an embodiment. [Embodiment 1] FIGS. 1 to 3 show [Embodiment 1] of the present invention and correspond to claims 1, 13 and 15 of the present invention.

FIG. 1 is a diagram showing the basic configuration of library management, and FIG.
FIG. 3 is a configuration diagram of a library object storage unit, and FIG. 3 is an overall configuration diagram showing a method for managing a library for an LSI design tool according to the present invention. In the following description, each term is defined as follows. A library object that has at least the version, cell and tool information in addition to the library entity is defined as a "library object", and a case where a library object is handled by focusing on the cell information of the library object is particularly defined as a "cell library". In the following description, a case where a library object is handled by focusing on cell and tool information is particularly defined as a “cell tool library”.

As shown in FIG. 1, the basic structure of the library management is to execute a library object storing means 1 for executing a library object storing step, a unified version storing means 2 for executing a unified version storing step, and a configuration information storing step. It is provided with configuration information storage means 3. The library object storage means 1 stores a library object (cell tool library), and its details are shown in FIG.

The library object storage means 1 includes a library storage means 4 for storing a library entity, a version information storage means 5 for storing a library version, a status information storage means 6 for storing a library state, an LSI design A plurality of library attribute information storage means 7 for storing all information (hereinafter, referred to as attributes) relating to the library, such as cells representing basic functional operations (for example, AND, OR, INV, etc.) and types of design tools. It is provided with.

The unified version storage means 2 shown in FIG.
Stores version information in the cell library, and stores a plurality of cell tool libraries 8, 8,.
・ ・ It is intended to handle the whole. The configuration information storage unit 3 stores configuration information indicating the relationship between the cell tool library 8 and the unified version storage unit 2 (that is, the version relationship between the cell tool libraries).

An LSI design tool library management system based on the basic configuration shown in FIGS. 1 and 2 is configured as shown in FIG. In FIG. 3, 1
0 is a library input / output unit, 20 is a database access unit, 30 is a library information management unit, and 40 is a library information database. Library input / output means 10
Passes the input information (for example, library name, design tool name, library file name, series name to which the library belongs, information of the library itself such as operating voltage and processing contents, etc.) to the database access means 20, It is a means for obtaining information of the library information management unit 30 or the library information database 40 via the database access means 20.

The database access means 20 includes a library information management unit 30 and a library information database 40
In the input information obtained from the library input / output means 10,
The library-related processing (eg, library registration, search, etc.) is controlled based on the processing-related information, other information is passed to the library information management unit 30 and the library information database 40, and the processing result is transmitted to the library input / output unit 10. Hand over to

The library information management unit 30 includes a library configuration information management unit 31, a version information management unit 32, and a library attribute information management unit 33, and by using these, the configuration information storage unit 42 included in the library information database 40. And the unified version storage means 43 and the library object storage means 44. The library information database 40 includes a configuration information storage unit 42
And a library version storage unit 43 and a library object storage unit 44. The library basic unit 41, which is the basic configuration of the library shown in FIG.

The processing of each library (new registration, update, search, and retrieval) will be described below with reference to FIGS. 2 and 3.
This will be described with reference to FIG. (1) New registration of library To newly register a library, the database access unit 20 that has received the library information and the information of the registration process from the library input / output unit 10 sends the library information to the library information management unit 30. hand over.

In the library information management section 30, the library configuration information management means 31 specifies which library basic unit 41 in the library information database 40 stores the input cell tool library.
At this time, when the library basic unit 41 to be stored does not exist (when a new cell is registered), a new library unit is created. Next, the version information management means 32 creates a new library object storage means 44 in the specified library basic unit 41, and stores the version in the version information storage means 5 of the library object storage means 44.

When the library basic unit 41 is newly created, the unified version storage means 43 is also created and stores the unified version. Next, the library attribute management unit 33 stores the state and attributes of the library in the library attribute storage unit 7 and the status information storage unit 6 of the library object storage unit 44. Then, the library configuration information management unit 31 stores the configuration relationship between the newly added library object storage unit 44 and the unified version storage unit 43 in the configuration information storage unit 42. Thus, the registration process is completed.

(2) Updating the Library When updating the library, first, the database access unit 20 receives the library information and the information indicating the update processing from the library input / output unit 10.
Acquires the library object storage means 44 corresponding to the input library information from the library information database 40, and stores the information in the library information management section 30.
Pass to. In the library information management unit 30, the library configuration information management unit 31 stores the library object storage unit 44 storing the cell tool library to be updated, the related library object storage unit group, and the unified version storage unit 43 as configuration information. Means 42
Specify from the configuration information stored in. Next, the version information management means 32 uniformly updates all of the library object storage means 44 to be updated and the library object storage means group previously specified, generates a unified version that unifies them, and stores a new unified version. It is stored in the means 43. Then, the library configuration information management unit 31 determines the configuration relationship between the new unified version storage unit 43 and the new library object storage unit 44 and stores the determined relationship in the configuration information storage unit 42. Thus, the updating process is completed.

(3) Library Search When a library search is performed, the database access unit 20, which has received the library information and the information indicating the search processing from the library input / output unit 10, converts the input library information into the library information. For all the library object storage means 44 stored in the database 40, the attribute information stored in the library attribute information storage means 7 of each library object storage means 44 and the attribute information stored in the status information storage means 6 are stored. The state of the library and the version information stored in the version information storage means 5 are compared, and the corresponding information is selected. Thus, the search processing is completed.

(4) Retrieval of Library Entity To retrieve a library entity, the database access unit 20 which has received the library information and the information indicating that the library entity is to be retrieved from the library input / output unit 10 causes the database access unit 20 to execute the above-described search process. Specifies the library object storage means 44 storing the library entity to be extracted. Then, it is determined whether or not the library entity is actually taken out based on the state of the library stored in the status information storage means 6 of the specified library object storage means 44. When the library entity is taken out, the library entity is returned, and the library entity is returned. If it does not retrieve the information, the information is notified.
Thus, the process of extracting the library entity is completed.

The judgment based on the state of the library described above is as follows.
For example, a case will be described in which there are five types of states of the library (“creating”, “release”, “creation unnecessary”, “creation aborted”, and “use prohibited”) (contents will be described later). If the library status is "Release",
The library entity stored in the corresponding library object storage is extracted.

If the state of the library is “creation unnecessary”, “cancel creation”, or “use prohibited”, the library object storage means having the latest “release” state among the past versions of the corresponding library object storage means is stored. Retrieve the library entity to be stored. When the state of the library is "creating", the state control is such that the library entity is not taken out.

As described above, according to the present embodiment, each L
The library for the SI design tool is stored with the information accompanying the library and the library entity in the library object storage means 44, and each library object storage means 44 and the unified version storage means 43 are stored in the configuration information storage means 42. The library management that associates the library object storage means 44 (associates each cell tool library version) can be realized.

In this [Embodiment 1], the information stored in the unified version storage means uses the version information of the cell library, and library management for handling cells collectively, for example, specifying cells is performed. This is effective for the process of frequently searching or retrieving all the tool libraries related to the cell, but the information stored by the unified version storage means uses the version information of the tool library focusing on the tool information. Thus, it is possible to make a configuration effective when library management that handles tools collectively, for example, when a process of specifying a tool and retrieving or retrieving all cell libraries usable by the tool is frequently performed (claims). 2, corresponding to claim 14 and claim 16).

Next, a second embodiment will be described with reference to FIG.
[Embodiment 5] will be described. FIG. 4 shows a version management method (corresponding to claims 3 and 4) for realizing version unification between cell tool libraries in a specific cell according to [Embodiment 2] of the present invention; [Third Embodiment] A first method for specifying a library object storage unit in which the latest cell tool library is stored (corresponding to claims 5 and 6).
And a second method (corresponding to claim 7 and claim 8) for specifying the library object storage means in which the latest cell tool library is stored, which is [Embodiment 4]. 5) A concept for indicating a method of determining an update target and the latest version based on the status information of the library object storage means (corresponding to claim 9, claim 10, claim 11, and claim 12). FIG.

In FIG. 4, the rectangle is the library object storage means 44 shown in FIG. There are three types of cell tool libraries, A, B, and C. Each library object storage means stores V1, V
2, V3, V4, and the unified version storage means is UV1, UV2, UV3, UV4
It is assumed that there is a unified version between cell tool libraries.

Note that a hatched rectangle indicates a state in which the library object storage means stores the library entity, and a blank rectangle indicates a state in which the library object does not have the library entity. [Embodiment 2] This embodiment relates to claims 3 and 4.
It corresponds to.

A version management method for realizing version unification between cell tool libraries in a specific cell will be described. Library A for cell tool in FIG.
Is updated to V4 (assuming that the cell tool libraries B and C are not to be updated), first, the storage unit V3 of the cell tool library A is updated.
Is updated to create V4.

Next, another library object storage means belonging to the unified version UV3 to which the storage means V3 of the cell tool library A belongs is examined to obtain V3 of each storage means of the cell tool libraries B and C, and these are obtained. Similarly, by uniformly generating V4 in the same manner as the storage means V3 of the cell tool library A, a new unified version U
V4.

Next, it is determined whether or not the individual library object storage means belonging to the unified version UV4 is to be updated (that is, whether or not the library entity is to be updated). Store the entity. In the figure, V4 of the storage means of the cell tool library A is to be updated. Therefore, the updated library entity is stored in the storage tool V4 of the cell tool library A.
To be stored.

On the other hand, the respective storage means of the cell tool libraries B and C do not have the substance of the library because they are not to be updated. Therefore, a pointer pointing to the latest version of each storage means of the cell tool libraries B and C (library B is V2 and library C is V3 in the figure) storing the entity of the library is stored as an attribute of the library object storage means. .

As described above, version unification between cell tool libraries can be realized, and association of versions between cell tool libraries can be realized. [Embodiment 3] This embodiment relates to claims 5 and 6.
It corresponds to. Two methods for realizing the first method for specifying the library object storage means in which the latest cell tool library is stored will be described.

First, a first realization method will be described. Usually, it is easy to trace the version of a library object storage unit from a new version to an old version (for example, from V4 to V1 in the figure). Therefore, the storage means of the cell tool library B is changed from V3 to V3.
4, the latest version (V2) storing the library entity is identified by sequentially tracing the library object storage means in the direction of the older version, and a pointer (V4 in the figure) indicating the corresponding latest version
(Indicated by an arrow from to V2) is stored as an attribute of the library object storage means. As described above, the pointer indicating the latest version of the library object storage unit can be obtained.

As described above, it is possible to acquire the library object storage unit having the library entity by the easy process of tracing the past version. Next, a second realization method will be described. Usually, the library object storage means in the state before updating the version always stores the entity of the library or stores a pointer to the latest version. Therefore, when the cell tool library B is updated from V3 to V4, the attribute value stored in the attribute indicating the latest version held by the library object storage means of the previous version (V3) is unconditionally stored. By storing the attribute indicating the latest version of the means (V4), a pointer indicating the latest version can be obtained.

As described above, when updating the library object storage means, only the attribute indicating the latest version of the library object storage means of the previous version is obtained, and the library entity is quickly held without tracing the past version. Library object storage means can be obtained. [Embodiment 4] This embodiment relates to claims 7 and 8.
It corresponds to.

Second library object storing means for storing the latest cell tool library
The method will be described. Usually, the library object storage means in the state before updating the version always stores the entity of the library or stores a pointer to the latest version. Therefore, when the storage means V3 of the cell tool library B is updated to V4, the previous version number (V3) is unconditionally stored as a pointer indicating the latest version of V4. Thus, when the library object storage unit is searched or the library entity is retrieved, the pointer indicating the latest version is obtained by sequentially tracing the attribute information storing the pointer indicating the previous version from the library object storage unit of a certain version. It is possible to

As described above, at the time of updating the library object storage means, the update processing can be executed quickly without searching for the library object storage means or following the pointer again. If the attribute indicating the latest version of the library object storage means having the library entity is stored with the version of the library object storage means of interest, the latest version of the library object storage means at the time of updating is stored. The attribute to be shown can be determined more easily.

[Embodiment 5] This embodiment corresponds to claims 9, 10, 11, and 12. A method of determining the update target and the latest version based on the status information will be described.

In this embodiment, it is assumed that the state of the library is “creating”, “release”, “not required”, “use prohibited”, and “canceled”. Here "under construction"
Indicates that the library has been updated at the time of updating the cell tool library and is in a state before the library entity is stored. “Release” indicates that the library entity is stored in the library object storage means and the cell tool library can be made public.

"Not required" indicates that the library entity is not stored and is not stored when the cell tool library is updated. "Use prohibited" indicates that the library entity is stored in the library object storage means but the cell tool library cannot be made public. "Creation stop" is an update target at the time of updating the cell tool library, and indicates that the library entity was scheduled to be stored in the library object storage means, but was stopped for some reason.

In the case of performing the version update (V3 to V4) of the storage means of the cell tool library A shown in FIG. Will be described. First, when V3 of the storage means of the library A for cell tools is updated and V4 is created, the state of the library of V4 is set to "being created".

Next, other library object storage units belonging to the unified version UV3 to which the storage unit V3 of the cell tool library A belongs are checked, and V3 of each storage unit of the cell tool libraries B and C is obtained. Similarly, V4 is generated uniformly in the same manner as V3 of the storage means of the cell tool library A, and the state of the library is set to "under creation" to newly form a unified version UV4.

Next, it is determined whether or not the individual library object storage means belonging to the unified version UV4 is to be updated (that is, whether or not the library entity is to be updated). The stored library entity is stored, and the state of the library is changed from "being created" to "released" (V4 of the storage means of the cell tool library A).

When the storage means V3 of the cell tool library A is updated to create V4, the UV4
Is created, that is, if the storage means V4 of the cell tool library A exists, the updating process of the cell tool library storage means V3 cannot be executed. On the other hand, for those not to be updated, a pointer indicating the latest version is stored in the attribute indicating the latest version in the library object storage means, and the state of the library is changed from “under creation” to “not required” (the cell tool library B and V4) of each storage means of C.

When the storage of the library entity is stopped for some reason (for example, when an update operation is further performed before the library entity is stored), the library state is set to “creation aborted”. , A pointer indicating the latest version is stored in the attribute indicating the latest version of the library object storage means.

In the library object storage means in the “release” state, if the publication of the library should be stopped for some reason (for example, when a defect is found in the stored library entity), the library object is stored in the library object storage means. The state is set to “use prohibited”, the library object storage means and the library object storage means having a newer version (for example, correspond to V3 and V4 when V2 in FIG. B is set to “use prohibited”). The attribute indicating the latest version is reset to the pointer indicating the latest version, that is, the library object storage means (V1 in B in the figure) having the newest version whose library state is "release" at that time.

As described above, the library object storing means in which the library entity is stored can be clarified, and the status of the library entity (whether or not to store the library entity) can be confirmed, so that the library management can be easily realized. . As described above, according to [Embodiment 2] to [Embodiment 5], a unified version between the library object storage means can be easily realized, and the version between the library object storage means, ie, the libraries between the design tool libraries, can be easily realized. Can express relationships. In addition, by giving the library object storage means the state of the library, it is possible to control the version,
It can be easily determined in which library object storage means the usable cell tool library is stored.

In [Embodiment 2] to [Embodiment 5], first, the V
3 is updated and then other library object storage means in the unified version are checked and updated. First, all library object storage means belonging to the unified version UV3 to which V3 of the library object storage means A belongs are first checked. You may check first and update all at once. Although five states are used as library states, it goes without saying that more detailed library control can be performed by increasing the states.

[0065]

As described above, according to the present invention, a library for an LSI design tool is stored as a cell tool library in the library object storage means, and information associated with the library is stored in the library object storage means, and is integrated with each library object. By storing the version storage means in association with the configuration information stored in the configuration information storage means, it is possible to clarify the association between the versions of the respective libraries for the LSI design tool. It is possible to reduce human errors in attaching.

In addition, it is possible to easily confirm the version of another library corresponding to the version of a certain library and to add a state to the library, so that not only the version of the library can be confirmed, but also the availability of the library can be determined. The mistake of using the wrong version of the library can be reduced. further,
For example, even when searching for the latest library at any time, it is possible to perform the search reliably and efficiently.

[Brief description of the drawings]

FIG. 1 is a basic configuration diagram of library management of a method for managing a library for an LSI design tool according to the present invention;

FIG. 2 is a configuration diagram of a library object storage unit of the method for managing a library for an LSI design tool according to the present invention;

FIG. 3 is a configuration diagram of an LSI design tool library management method according to the first embodiment of the present invention;

FIG. 4 [Embodiment 2] to [Embodiment 5] of the present invention.
Conceptual diagram of a method of specifying a library object storage unit of the present invention and a method of determining an update target and the latest version based on status information

[Description of Signs] 1 Library object storage means 2 Unified version storage means 3 Configuration information storage means 4 Library storage means 5 Version information storage means 6 Status information storage means 7 Library attribute storage means 10 Library input / output means 20 Database access means 30 Library Information management unit 31 Configuration information management means 32 Version information management means 33 Attribute information management means 40 Library information database 41 Library basic unit 42 Configuration information storage means 43 Unified version storage means 44 Library object storage means

Claims (16)

[Claims] A library object having at least version, cell and tool information in addition to a library entity, and stores a cell tool library for handling the library object by focusing on cell and tool information of the library object. A unified version storage step of managing version information in a cell library that handles the library object by focusing on cell information; and a configuration between the library object storage step and the unified version storage step. A method for managing a library for an LSI design tool, comprising: a configuration information storage step of storing and managing information. 2. The method for managing a library for an LSI design tool according to claim 1, wherein the information stored in the unified version storing step is replaced with information on a tool included in the library object instead of the version information on the cell library. A method for managing a library for an LSI design tool, wherein version information of a library for a tool that handles a library object is focused on. 3. The method for managing a library for an LSI design tool according to claim 1, wherein when updating at least one library for a cell tool, a plurality of library for a cell tool are associated with information included in the configuration information storing step. To uniformly provide a new storage area in which each is individually stored, assign a uniform version number, store the uniform version number in the unified version storing step, and perform version unification between the cell tool libraries. A method for managing a library for an LSI design tool, characterized in that: 4. A method for managing a library for an LSI design tool according to claim 2, wherein when updating at least one library for a cell tool, a plurality of libraries for a cell tool are associated with information included in the configuration information storing step. To uniformly provide a new storage area in which each is individually stored, assign a uniform version number, store the uniform version number in the unified version storing step, and perform version unification between the cell tool libraries. A method for managing a library for an LSI design tool, characterized in that: 5. The method for managing a library for an LSI design tool according to claim 3, wherein the library object storing step has version information of a storage area storing a latest cell tool library. Wherein the storage area specified by the unified version number does not have a library entity, and where the library entity is stored is designated using the latest version information. How to manage the library. 6. The method of managing a library for an LSI design tool according to claim 4, wherein said library object storing step has version information in which a latest cell tool library is stored, and When the storage area specified by a number does not have a library entity, a location where the library entity is stored is specified using the latest version information, and a library for an LSI design tool is managed. Method. 7. The method for managing a library for an LSI design tool according to claim 5, wherein, instead of the version information in which the latest cell tool library stored in the storage area of the library object storing step is stored, one is stored. If the storage area specified by the unified version number does not have a library entity, the location where the library entity is stored using the previous version information is stored. A library management method for an LSI design tool. 8. The method of managing a library for an LSI design tool according to claim 6, wherein one of the version information stored in the storage area of the library object storing step and the latest cell tool library stored is replaced with one. If the storage area specified by the unified version number does not have a library entity, the location where the library entity is stored using the previous version information is stored. A library management method for an LSI design tool. 9. The method for managing a library for an LSI design tool according to claim 5, wherein the library object storing step includes status information capable of expressing at least a state of library creation, creation unnecessary, creation stop, use prohibition, or release. A method of managing a library for an LSI design tool, wherein a location where a library entity is stored is specified based on the status information. 10. The method for managing a library for an LSI design tool according to claim 6, wherein the library object storing step includes status information capable of expressing at least the status of library creation, creation unnecessary, creation stop, use prohibition or release. A method of managing a library for an LSI design tool, wherein a location where a library entity is stored is specified based on the status information. 11. The method for managing a library for an LSI design tool according to claim 7, wherein said library object storing step includes status information capable of expressing at least a state of library creation, creation unnecessary, creation stop, use prohibition or release. A method of managing a library for an LSI design tool, wherein a location where a library entity is stored is specified based on the status information. 12. The method for managing a library for an LSI design tool according to claim 8, wherein said library object storage means generates status information indicating at least the status of library creation, creation unnecessary, creation stop, use prohibition or release. A method of managing a library for an LSI design tool, wherein a location where a library entity is stored is specified based on the status information. 13. A library information database in which the configuration described in the method of managing a library for an LSI design tool according to claim 9 is used as a basic unit, and the basic unit is arranged by the number of cells, and the library information database is managed. A library information management unit comprising a library configuration information management unit, a version information management unit, and a library attribute information management unit; a library input / output unit for inputting and outputting library information; An apparatus for managing a library for an LSI design tool, comprising: an information management unit; and a library access unit that transmits the information to the library information database. 14. A library information database in which the configuration described in the method for managing a library for an LSI design tool according to claim 10 is used as a basic unit, and the basic unit is arranged by the number of cells, and the library information database is managed. A library information management unit comprising a library configuration information management unit, a version information management unit, and a library attribute information management unit; a library input / output unit for inputting and outputting library information; An apparatus for managing a library for an LSI design tool, comprising: an information management unit; and a library access unit that transmits the information to the library information database. 15. A library information database in which a configuration described in the method for managing a library for an LSI design tool according to claim 11 is used as a basic unit, and the basic unit is arranged by the number of cells, and the library information database is managed. A library information management unit comprising a library configuration information management unit, a version information management unit, and a library attribute information management unit; a library input / output unit for inputting and outputting library information; An apparatus for managing a library for an LSI design tool, comprising: an information management unit; and a library access unit that transmits the information to the library information database. 16. A library information database in which a configuration described in the method of managing a library for an LSI design tool according to claim 12 is used as a basic unit, and the basic unit is arranged by the number of cells, and the library information database is managed. A library information management unit comprising a library configuration information management unit, a version information management unit, and a library attribute information management unit; a library input / output unit for inputting and outputting library information; An apparatus for managing a library for an LSI design tool, comprising: an information management unit; and a library access unit that transmits the information to the library information database.