Updating a Release System with ELF Programs

Warning

Migrated from: https://cwiki.apache.org/confluence/display/NUTTX/Updating+a+Release+System+with+ELF+Programs

Warning

Migrated from: https://cwiki.apache.org/confluence/display/NUTTX/Updating+a+Release+System+with+ELF+Programs

You can enhance the functionality of your released embedded system by adding ELF programs, which can be loaded from a file system. These programs can be stored on an SD card or downloaded into on-board SPI FLASH, allowing for easy updates or extensions to the system's firmware.

There are two ways you can accomplish this:

Partially linked

This describes building the partially linked, relocatable ELF program that depends on a symbol table provided by the base firmware in FLASH.

Reference: - See [[Partially Linked ELF Program](`Partially Linked ELF Program.md)s <partially_linked_elf>]

Fully linked

This describes building a fully linked, relocatable ELF program that does not depend on any symbol table information.

Reference: - See [[Fully Linked ELF Program](`Fully Linked ELF Program.md)s <fully_linked_elf>]