Abstract: In a computing system environment, methods and architecture relate to debugging software programs. The programs, regardless of size, are culled for substantially all memory and register writes (and flow control). An indexing and compression occurs so that upon a later query, and decompression (and display), a user can find and diagnose defects in the software program. To efficiently reconstruct the contents of any memory location or register, backwards tracing of events is comprehensively known for all time, not just select periods. Efficiencies in the indexing function include bunching, replacing actual memory locations with pattern(s) representative of same and dividing an execution history of the software program into manageable sections. Nuances for memory or register effects are also contemplated. Still other embodiments contemplate stand-alone computer program products (on computer-readable media or as a download, or other) or those working in conjunction with other debugging programs.

Abstract: In a computing system environment, methods and apparatus relate to constructing a call stack for a software program based upon a comprehensive recording of an execution history of the software program. Upon defining procedure calls and returns in the execution history, a call stack is constructed for the procedure calls having no corresponding returns, but without reading or otherwise examining allocated stack memory or registers, such as return addresses. In this manner, an accurate call stack can be constructed despite stack memory or registers being erased or corrupted or despite various compiler optimizations eliminating convenience or otherwise complicating the construction. Nuances for defining procedure calls and returns as well as stack pointer values for same are also contemplated. Still other embodiments relate to stand-alone computer program products (on computer-readable media or as a download, or other) or those working in conjunction with other programs.

Abstract: In a computing system environment, methods and architecture relate to debugging software programs. The programs, regardless of size, are culled for substantially all memory and register writes (and flow control). An indexing and compression occurs so that upon a later query, and decompression (and display), a user can find and diagnose defects in the software program. To efficiently reconstruct the contents of any memory location or register, backwards tracing of events is comprehensively known for all time, not just select periods. Efficiencies in the indexing function include bunching, replacing actual memory locations with pattern(s) representative of same and dividing an execution history of the software program into manageable sections. Nuances for memory or register effects are also contemplated. Still other embodiments contemplate stand-alone computer program products (on computer-readable media or as a download, or other) or those working in conjunction with other debugging programs.