Izuma Tech, Inc.

Christopher Haster

Michael Bartling

A method of tracking a history of firmware program updates. The method includes reading current descriptions of current application programming interfaces from a history log. The current application programming interfaces correspond to current software modules. The current software modules form a current firmware program of a target device. The method also includes accessing updated software modules and new descriptions of new application programming interfaces of an updated firmware program. The updated firmware program is created from the current firmware program. The method further includes appending the new descriptions to the current descriptions in the history log, reading the new descriptions of the new application programming interfaces from the history log, generating an updated linkage for the updated firmware program by adding new links for the new application programming interfaces, and storing the updated software modules and the updated linkage in the history log.

Tracking history of firmware program updates

The present disclosure advantageously provides a computer-based method for partitioning software for an embedded system with a memory protection unit (MPU). Object code within a plurality of object files is converted to intermediate code. A call graph is generated based on the intermediate code. The call graph is transformed into a directed flow graph, which includes updating the call graph's node weights and directed edge weights. The directed flow graph is partitioned into a target number of MPU memory regions, which includes assigning each element of the object code to one of the MPU memory regions. Each element of the object code is relocated to a new object file that corresponds to the assigned MPU memory region. An MPU configuration object file is created that includes one or more configuration parameters for each MPU memory region.

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Austin, TX, United States of America

Christopher Haster