Method and apparatus for automatically determining optimum placement of privileged code locations in existing code
US7237236B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Aug 22, 2002 |
| Grant date | Jun 26, 2007 |
| Priority date | — |
| Expiry date | Jun 29, 2024 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06F8/72
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
A method and apparatus for automatically determining optimum placement of privileged code enablement locations in existing code are provided. A method invocation graph of existing code is generated and a static analysis of the method invocation graph is performed. The static analysis is used to analyze the permission propagation through chains of method invocations in the method invocation graph. When a method invocation in the method invocation graph satisfies one or more user definable criteria, the location in the method invocation graph is saved to a file that identifies recommended insertion points for a call to the authorization enablement code. This file may then be used to manually review the code to determine if a call to privileged mode enablement should actually be made at the identified locations. Alternatively, the call to privileged mode enablement may be automatically inserted at the indicated locations using refactoring.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.