Symantec Corporation

Symantec Operating Corporation

Veritas Technologies LLC

Daryl Hoyt

Brian Day

Michael Spertus

Christopher D Metcalf

Jim Polubinski, Jr

Charles Fiterman

Gustavo Rodriguez-Rivera

A system and method for automatically analyzing virtual machine bytecode of a software application and adding additional bytecode operable to determine information regarding network communication performed by the software application are described. According to one embodiment of the method, program code of a software application may be received, wherein the program code includes bytecode for a virtual machine. The bytecode may be automatically analyzed to detect network communication functionality. The method may operate to automatically add additional bytecode to the bytecode of the software application, where the added bytecode is operable to determine information regarding the network communication.

Automatically adding bytecode to a software application to determine network communication information

A system and method for automatically modifying a native code module accessed in a user software application are described herein. The user software application may include virtual machine bytecode. Access to the native code module may be detected during execution of the virtual machine bytecode. The native code module may be automatically modified by adding instrumentation code to determine various types of information regarding execution of the native code module, and the access may be directed to the modified native code module.

Automatically modifying a native code module accessed from virtual machine bytecode to determine execution information

A system and method for automatically analyzing virtual machine bytecode of a software application and adding additional bytecode operable to determine information regarding database access performed by the software application are described. According to one embodiment of the method, program code of a software application may be received, wherein the program code includes bytecode for a virtual machine. The bytecode may be automatically analyzed to detect access to a database. The method may operate to automatically add additional bytecode to the bytecode of the software application, where the added bytecode is operable to determine information regarding the access to the database.

Automatically adding bytecode to a software application to determine database access information

A method and mechanism for managing dynamically allocated memory. Portions of memory which are available for allocation have additional information stored in association with each portion which indicates whether the portion has been previously identified as being prematurely freed. In addition, a checksum is stored with each portion of memory. In response to a request for deallocation of a portion of memory, the portion of memory is not deallocated if it is identified as having been prematurely freed. Otherwise, the a checksum is calculated for the portion and it is freed. In response to an allocation request, a candidate portion of memory is identified for allocation and a checksum is calculated for the candidate portion. If the calculated checksum does not match a checksum previously stored for the candidate portion, the portion is identified as having been prematurely freed and is not returned for allocation.

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Aurora, IL, United States of America

Daryl Hoyt