U.S. patents available from 1976 to present.
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Method and apparatus for run-time memory access checking and memory leak detection of a multi-threaded program

Patent 5953530 Issued on September 14, 1999. Estimated Expiration Date: Icon_subject November 25, 2017. Estimated Expiration Date is calculated based on simple USPTO term provisions. It does not account for terminal disclaimers, term adjustments, failure to pay maintenance fees, or other factors which might affect the term of a patent.

Patent References

System and method for controlling a highly parallel multiprocessor using an anarchy based scheduler for parallel execution thread scheduling
Patent #: 5179702
Issued on: 01/12/1993
Inventor: Spix, et al.

Method and apparatus for run-time error checking using dynamic patching
Patent #: 5581697
Issued on: 12/03/1996
Inventor: Gramlich, et al.

Method and apparatus for a fast debugger fix and continue operation
Patent #: 5675803
Issued on: 10/07/1997
Inventor: Preisler, et al.

Method and system for loading and confirming correct operation of an application program in a target system
Patent #: 5715387
Issued on: 02/03/1998
Inventor: Barnstijn, et al.

System and method for reducing stack physical memory requirements in a multitasking operating system Patent #: 5727178
Issued on: 03/10/1998
Inventor: Pletcher, et al.

Inventors

Application

No. 976448 filed on 11/25/1997

US Classes:

717/127, Monitoring program execution714/38, Of computer software714/48Error detection or notification

Examiners

Primary: Trammell, James P.
Assistant: Nguyen, Hoang

Attorney, Agent or Firm

International Classes

G06F 011/00
G06F 011/30
G06F 009/44

Abstract

The present invention is a system and method for a "debugger Run-Time-Checking for valid memory accesses for multi-threaded application programs" (hereinafter "RTC/MT") wherein a run-time process which includes multiple threads running either serially or concurrently, may be monitored by a debugger program and memory access errors detected and correctly attributed to the process thread encountering the error. The RTC/MT system of the present invention also provides an apparatus and method which monitors and reports memory leaks as required for multi-threaded target programs.

Other References

  • Sun Microsystems, Inc., (SunSoft) Solaris SunOS 5.0 Multithread Architecture, A White Paper, 1991, M.L. Powell et al., pp. 1-3
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