Incrementally updatable system software infrastructure for sensor networks

Systems and techniques for incrementally updating a software stack are described. The software stack can be stored on a flash memory device on a target device. A server computer can receive a modification to a function that is part of the software stack, wherein additional memory is allocated on the flash memory device to allow the function increase in size via a software update. Next, a new memory layout can be determined for storing functions in the software stack based on the modification to the function. The server computer can then determine changes to a set of memory pages on the flash memory device based on the new memory layout. Next, the server computer can send the changes to the set of memory pages to the target device.