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ghidrARMloader

This loads raw dumps of arm firmware in ghidra

IT WILL NOT WORK ON ITS OWN, it needs these components :

  1. The ARM chip database available here copied (or symlinked) in the data directory:

    https://github.com/Jegeva/idarm-resultdb-nodescription

    (The db is built with https://github.com/Jegeva/idarm/)

AND

  1. the sqlite3 jdbc driver available here :

    https://github.com/xerial/sqlite-jdbc

    https://repo1.maven.org/maven2/org/xerial/sqlite-jdbc/3.34.0/sqlite-jdbc-3.34.0.jar

    installed in your build path

Once you are there, try to load any raw ARM dump.

It should detect :

  • If it is a Cortex dump (by identifiying the interrupt vector table
  • The base adress (for cortexes)

autodetect

You can then just select the vendor and the MCU in the loading option menu

vendors+chips

Once loaded :

  • Every peripheral register address is named
  • Every register is declared as a bitfield struct with the bits named as in the chip's datasheet.
  • the IVT is named to the appropriate Standard peripheral (or number when unknown (it is the case in a lot of SVDs))
  • The peripheral bits are defined as the appropriate struct

exemple GPIO peripheral ODR register structure with an STM32F103 : vendors+chips

🔔 Currently ghidra isn't supporting bitfieldw very well in disassembly and decompilation

NationalSecurityAgency/ghidra#647

NationalSecurityAgency/ghidra#1059

This supports ~650 chips from

  • Atmel
  • Cypress
  • Freescale
  • Fujitsu
  • Holtek
  • Nordic
  • Nuvoton
  • NXP
  • SiliconLabs
  • Spansion
  • STMicro
  • TexasInstruments
  • Toshiba

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