Patents by Inventor Roland McGrath

Roland McGrath has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Patent number: 9134977
    Abstract: A computer-implemented method and apparatus for optimizing conditional code by identifying conditional code in a source code, adding a no-operation instruction to an executable code corresponding to the source code in place of the conditional code, adding an entry to a table to pair the no-operation instruction to the conditional code, compiling the conditional code, and storing the compiled conditional code separate from the executable code. A computer-implemented method and apparatus to optimize conditional code by loading an executable code to be executed, checking whether conditional code associated with the executable code is enabled for execution, looking up a location of a no-operation instruction in a table and a location of a compiled conditional code in the table, and replacing the no-operation instruction in the executable code with the compiled conditional code.
    Type: Grant
    Filed: February 26, 2010
    Date of Patent: September 15, 2015
    Assignee: Red Hat, Inc.
    Inventors: Jason I. H. Baron, Richard Henderson, Roland McGrath
  • Patent number: 8713529
    Abstract: A mechanism for replacing memory pointers with implicit pointers is disclosed. A method of embodiments of the invention includes determining a memory pointer in a source code compiling on a computer system. The memory pointer is associated with a first value in the source code and serves as a referencing link to a second value in memory. The method further includes replacing the memory pointer with an implicit pointer as the memory pointer is optimized away during code optimization of the source code such that the implicit pointer is provided in a compiler-generated debug output to serve as an implicit reference link between the first value and second value. The implicit reference link was once provided as an explicit reference link by the memory pointer before getting optimized away.
    Type: Grant
    Filed: July 30, 2010
    Date of Patent: April 29, 2014
    Assignee: Red Hat, Inc.
    Inventor: Roland McGrath
  • Publication number: 20120030660
    Abstract: A mechanism for replacing memory pointers with implicit pointers is disclosed. A method of embodiments of the invention includes determining a memory pointer in a source code compiling on a computer system. The memory pointer is associated with a first value in the source code and serves as a referencing link to a second value in memory. The method further includes replacing the memory pointer with an implicit pointer as the memory pointer is optimized away during code optimization of the source code such that the implicit pointer is provided in a compiler-generated debug output to serve as an implicit reference link between the first value and second value. The implicit reference link was once provided as an explicit reference link by the memory pointer before getting optimized away.
    Type: Application
    Filed: July 30, 2010
    Publication date: February 2, 2012
    Inventor: Roland McGrath
  • Publication number: 20110214110
    Abstract: A computer-implemented method and apparatus for optimizing conditional code by identifying conditional code in a source code, adding a no-operation instruction to an executable code corresponding to the source code in place of the conditional code, adding an entry to a table to pair the no-operation instruction to the conditional code, compiling the conditional code, and storing the compiled conditional code separate from the executable code. A computer-implemented method and apparatus to optimize conditional code by loading an executable code to be executed, checking whether conditional code associated with the executable code is enabled for execution, looking up a location of a no-operation instruction in a table and a location of a compiled conditional code in the table, and replacing the no-operation instruction in the executable code with the compiled conditional code.
    Type: Application
    Filed: February 26, 2010
    Publication date: September 1, 2011
    Applicant: RED HAT, INC.
    Inventors: Jason I.H. Baron, Richard Henderson, Roland McGrath