Using readily available driver and application source code with a synthesized operating system

• US 7,900,187 B2
• Filed: 04/25/2006
• Issued: 03/01/2011
• Est. Priority Date: 10/20/2003
• Status: Active Grant

• Current Assignee: ZT IP, LLC (Pueblo Nuevo LLC)
• Original Assignee: Robert Zeidman
• Inventors: Snider, Gregory, Zeidman, Robert M.
• Primary Examiner(s): Yigdall; Michael J
• Assistant Examiner(s): Wang; Ben C
• Application Number:
  US11/411,738
• Publication Number:
  US 20060253832A1
• Time in Patent Office: 1,771 Days
• Field of Search: None
• US Class Current: 717/106
• CPC Class Codes: G06F 30/00 Computer-aided design [CAD]
• CPC Class Codes: G06F 8/36 Software reuse
• CPC Class Codes: G06F 8/51 Source to source
• CPC Class Codes: G06F 8/72 Code refactoring
• CPC Class Codes: G06F 9/44 Arrangements for executing specific programs
• CPC Class Codes: G06F 9/4411 Configuring for operating with peripheral devices; Loading of device drivers

Abstract

Software that modifies the source code for readily available software tasks—typically applications and hardware drivers—so that a small, fast, reliable operating system can be synthesized to control execution of these readily available software tasks.

Claims

1. A method for customizing and synthesizing real time operating system source code, the method comprising:

providing a processor and a memory, in data communication with the processor;

providing a synthesis configuration file being provisioned to provide a listing of real time tasks and their attributes, the synthesis configuration file being used by a software synthesis program;

providing synthesis primitives to be placed in source code of a plurality of real time tasks, the synthesis primitives being configured to provide task management and synchronization among the plurality of real time tasks, the synthesis primitives being understood by the software synthesis program;

searching, by use of the processor and the memory, the source code of the plurality of real time tasks for operating system application programming interfaces (APIs) or task communication data structures;

substituting in the source code at least one of the synthesis primitives for the APIs or the data structures;

synthesizing source code for the substituted synthesis primitives using the software synthesis program and relying at least in part on information in the synthesis configuration file; and

converting, for execution by a computer, the source code including the synthesized source code.

2. The method of claim 1 wherein the APIs include thread manipulation APIs.

3. The method of claim 1 wherein the APIs include functions for achieving shared access to system resources.

4. An apparatus for customizing and synthesizing real time operating system source code, the apparatus comprising:

a processor and a memory in data communication with the processor;

means for providing a synthesis configuration file being provisioned to provide a listing of real time tasks and their attributes, the synthesis configuration file being used by a software synthesis program;

means for providing synthesis primitives to be placed in source code of a plurality of real time tasks, the synthesis primitives being configured to provide task management and synchronization among the plurality of real time tasks, the synthesis primitives being understood by a software synthesis program;

means for searching, by use of the processor and the memory, the source code of the plurality of real time tasks for operating system application programming interfaces (APIs) or task communication data structures;

means for substituting in the source code at least one of the synthesis primitives for the APIs or the data structures;

means for synthesizing source code for the substituted synthesis primitives using the software synthesis program and relying at least in part on information in the synthesis configuration file; and

means for converting, for execution by a computer, the source code including the synthesized source code.

5. The apparatus of claim 4 wherein the APIs include thread manipulation APIs.

6. The apparatus of claim 4 wherein the APIs include functions for achieving shared access to system resources.