Firmware execution profiling and verification
US11720681B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Oct 2, 2020 |
| Grant date | Aug 8, 2023 |
| Priority date | — |
| Expiry date | Sep 21, 2041 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06F21/577
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
An example method of generating an execution profile of a firmware module comprises: receiving an execution trace of a firmware module comprising a plurality of executable instructions, wherein the execution trace comprises a plurality of execution trace records, wherein each execution trace record of the plurality of execution trace records indicates a successful execution of an executable instruction identified by a program counter (PC) value; retrieving a first execution trace record of the plurality of execution trace records, wherein the first execution trace record comprises a first PC value; identifying a first executable instruction referenced by the first PC value; identifying a firmware function containing the first executable instruction; incrementing a cycle count for the firmware function by a number of cycles associated with the first executable instruction; and generating, using the cycle count, an execution profile of the firmware module.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.