System for memory error checking in an executable

Details System for memory error checking in an executable System for memory error checking in an executable

1998-08-20

2000-03-07

Beausoliel, Jr., Robert W.

Error detection/correction and fault detection/recovery

Data processing system error or fault handling

Reliability and availability

714 35, 714 53, G06F 1100

Patent

active

060354267

ABSTRACT:
The invention modifies an executing instance (target process) of an arbitrary computer program by replacing the heap manager in the target process. All functions in the process that manipulate dynamic memory are patched with replacement functions that implement improved heap management. The invention is applicable to any computer program that makes use of dynamic (heap) memory. In a second aspect of the invention, the improved heap implementation performs heap error checking in addition to managing heap storage. Alternative embodiments use the invention to improve performance (speed) using fast allocation algorithms, improve space efficiency of the program, or implement tracing of heap activity for debugging purposes.

REFERENCES:
patent: 5088036 (1992-02-01), Ellis et al.
patent: 5193180 (1993-03-01), Hastings
patent: 5491808 (1996-02-01), Geist, Jr.
patent: 5561786 (1996-10-01), Morse
patent: 5581697 (1996-12-01), Gramlich et al.
patent: 5644709 (1997-07-01), Austin

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