CA2097542A1 - Linkage for Accessing Data Objects in the Stack - Google Patents

Linkage for Accessing Data Objects in the Stack

Info

Publication number
CA2097542A1
CA2097542A1 CA2097542A CA2097542A CA2097542A1 CA 2097542 A1 CA2097542 A1 CA 2097542A1 CA 2097542 A CA2097542 A CA 2097542A CA 2097542 A CA2097542 A CA 2097542A CA 2097542 A1 CA2097542 A1 CA 2097542A1
Authority
CA
Canada
Prior art keywords
stack
originating
invocation
class
linkage
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
CA2097542A
Other languages
French (fr)
Other versions
CA2097542C (en
Inventor
William G. O'farrell
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
IBM Canada Ltd
Original Assignee
IBM Canada Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by IBM Canada Ltd filed Critical IBM Canada Ltd
Priority to CA002097542A priority Critical patent/CA2097542C/en
Publication of CA2097542A1 publication Critical patent/CA2097542A1/en
Application granted granted Critical
Publication of CA2097542C publication Critical patent/CA2097542C/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F9/00—Arrangements for program control, e.g. control units
    • G06F9/06—Arrangements for program control, e.g. control units using stored programs, i.e. using an internal store of processing equipment to receive or retain programs
    • G06F9/44—Arrangements for executing specific programs
    • G06F9/448—Execution paradigms, e.g. implementations of programming paradigms
    • G06F9/4488—Object-oriented
    • G06F9/449—Object-oriented method invocation or resolution
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F9/00—Arrangements for program control, e.g. control units
    • G06F9/06—Arrangements for program control, e.g. control units using stored programs, i.e. using an internal store of processing equipment to receive or retain programs
    • G06F9/44—Arrangements for executing specific programs
    • G06F9/448—Execution paradigms, e.g. implementations of programming paradigms
    • G06F9/4482—Procedural
    • G06F9/4484—Executing subprograms

Abstract

When an object call from the stack results in the invocation of a hierarchy of class constructs on a memory heap, a base class removed more than a predetermined number of levels from the derived class whose member object was called from the stack, has no means of directly accessing the originating program in the stack to implement an independent task outside the invocation chain. Means for creating a record of the address of the originating point in the executing program or the return address in the object's heap allocation that is accessible to all base classes in the invocation chain is provided to permit direct access to the originating activation record in the stack for base classes having independent task constructors.
CA002097542A 1993-06-01 1993-06-01 Linkage for accessing data objects in the stack Expired - Fee Related CA2097542C (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CA002097542A CA2097542C (en) 1993-06-01 1993-06-01 Linkage for accessing data objects in the stack

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CA002097542A CA2097542C (en) 1993-06-01 1993-06-01 Linkage for accessing data objects in the stack

Publications (2)

Publication Number Publication Date
CA2097542A1 true CA2097542A1 (en) 1994-12-02
CA2097542C CA2097542C (en) 1998-09-01

Family

ID=4151734

Family Applications (1)

Application Number Title Priority Date Filing Date
CA002097542A Expired - Fee Related CA2097542C (en) 1993-06-01 1993-06-01 Linkage for accessing data objects in the stack

Country Status (1)

Country Link
CA (1) CA2097542C (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6052778A (en) * 1997-01-13 2000-04-18 International Business Machines Corporation Embedded system having dynamically linked dynamic loader and method for linking dynamic loader shared libraries and application programs
US6363436B1 (en) 1997-01-27 2002-03-26 International Business Machines Corporation Method and system for loading libraries into embedded systems
US6934939B2 (en) 2001-02-28 2005-08-23 International Business Machines Corporation Method for unwinding a program call stack

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6052778A (en) * 1997-01-13 2000-04-18 International Business Machines Corporation Embedded system having dynamically linked dynamic loader and method for linking dynamic loader shared libraries and application programs
US6363436B1 (en) 1997-01-27 2002-03-26 International Business Machines Corporation Method and system for loading libraries into embedded systems
US6934939B2 (en) 2001-02-28 2005-08-23 International Business Machines Corporation Method for unwinding a program call stack

Also Published As

Publication number Publication date
CA2097542C (en) 1998-09-01

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