Google Inc.

Paul Pluzhnikov

Sriraman Tallam

A system and method for detecting execution of unsupported instructions while testing multiversioned functions within software application code are disclosed. An example method includes annotating a software application's executable binary to distinguish functions that are directed to particular hardware variations. Functions with instructions that are unsupported by a simulated hardware platform variation on which the software application's annotated executable binary will run may then be detected. The contents of the detected functions may be rewritten with trap instructions. At runtime, when executing the software application on the simulated hardware platform variation running on a different physical hardware platform variation, responsive to execution of a function with instructions that are unsupported by the simulated hardware platform, terminating the software application based on the execution of the trap instructions. Execution of unsupported instructions may be detected based on the termination of the software application.

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Mountain View, CA, United States of America

Paul Pluzhnikov