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

1996-08-23

1999-09-07

Palys, Joseph E.

Electrical computers and digital processing systems: memory

Storage accessing and control

Hierarchical memories

39518506, 711154, G06F 1100

Patent

active

059499729

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.

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