Method for unwinding a program call stack
US6934939B2 · kind B2 · utility
6Cited by
5References
14Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Feb 28, 2001 |
| Grant date | Aug 23, 2005 |
| Priority date | — |
| Expiry date | Dec 7, 2022 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06F9/4484
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
A method is disclosed for instructing a computing system to unwind a program call stack that lacks explicit Stack Frame Backchain Pointers, including finding the called function's entry point, determining the return point in the calling function, placing a NOP instruction at the return point that contains embedded information about what type of call was used, and backing up in storage by an amount determined by using the address of the called function's entry point to locate the static data item containing the called function's DSA size.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.