Ghidra Emotion Engine: Reloaded

An extension for Ghidra that adds support for the PlayStation 2.

This extension is based on the original ghidra-emotionengine project, with a number of changes.

Features

• Disassemble and decompile EE-specific instruction sets (MMI, VU0 macro mode, etc).
• Recover data types, functions and global variables from ELF files with .mdebug sections with the included STABS Analyzer.
• Import PCSX2 save states.
• Fix references to global variables with the MIPS-R5900 Constant Reference Analyzer.
• Support for Ghidra 11.2.1.

Installation

Release builds are available on the releases page. Unstable builds, generated whenever there is a push to the main branch, are available here. To install the package, follow the instructions in the Ghidra documentation.

Building

If you want to build the extension yourself, install gradle and run:

gradle -PGHIDRA_INSTALL_DIR=/path/to/ghidra buildExtension

Common Issues

7-Zip returned unsupported method

Modern versions of PCSX2 store save states using zstd compression by default, which Ghidra's zip implementation doesn't support. To work around this, if you are using PCSX2 v2.1.178 or higher you should make sure that Tools -> Show Advanced Settings is checked, then navigate to File -> Settings -> Advanced -> Savestate Settings and change the Compression Method option to Deflate64. If you are using an older version, you will have to change SavestateZstdCompression to false in the EmuCore section of your PCSX2.ini file.

Decompilation fails for some functions

Try disabling the Decompiler Parameter ID analyzer.

Symbols aren't being demangled

Enable the Use Deprecated Demangler option in the settings for the Demangler GNU analyzer.