The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jul. 08, 2014
Filed:
Jan. 16, 2012
Arun Balakrishnan, San Diego, CA (US);
Alexander Gantman, Poway, CA (US);
Renwei GE, San Diego, CA (US);
Daniel Komaromy, San Diego, CA (US);
Yinian Mao, San Diego, CA (US);
Anand Palanigounder, San Diego, CA (US);
Brian M. Rosenberg, San Diego, CA (US);
Arun Balakrishnan, San Diego, CA (US);
Alexander Gantman, Poway, CA (US);
Renwei Ge, San Diego, CA (US);
Daniel Komaromy, San Diego, CA (US);
Yinian Mao, San Diego, CA (US);
Anand Palanigounder, San Diego, CA (US);
Brian M. Rosenberg, San Diego, CA (US);
QUALCOMM Incorporated, San Diego, CA (US);
Abstract
A method, apparatus, and/or system for execution prevention is provided. A state indicator for a first subset of a plurality of memory pages of executable code in a memory device is set to a non-executable state. A state indicator for a second subset of the plurality of memory pages is set to an executable state, where the second subset of the plurality of memory pages includes indirection stubs to functions in the first subset of the plurality of memory pages. Upon execution of an application, a function call is directed to a corresponding indirection stub in the second subset of the plurality of memory pages which modifies the state indicator for a corresponding function in the first subset of the plurality of memory pages prior to directing execution of the called function from the first subset of the plurality of memory pages.