The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.

The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.

Date of Patent:
Nov. 14, 2006

Filed:

Mar. 21, 2001
Applicants:

Kenneth E. Madsen, Mendon, MA (US);

Dersang Lee, Mansfield, MA (US);

Peter S. Dawson, Canton, MA (US);

Inventors:

Kenneth E. Madsen, Mendon, MA (US);

Dersang Lee, Mansfield, MA (US);

Peter S. Dawson, Canton, MA (US);

Assignee:

Wind River Systems, Inc., Alameda, CA (US);

Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G06F 9/44 (2006.01); G06F 11/00 (2006.01);
U.S. Cl.
CPC ...
Abstract

A method and system of monitoring code after being compiled or assembled is provided. Software code instructions, such as a function preamble and/or a data manipulation instruction, are identified using debug information and then dynamically replaced with an instruction that will branch execution to a scratchpad buffer. A routine is inserted into the scratchpad buffer, and includes instruction(s) to generate output to a trace buffer. Subsequent instructions in the scratchpad may execute the replaced instruction(s) and branch back to the address of the program code immediately following the original address of the replaced instruction.


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