A Ghidra extension for exporting parts of a program as object files
This Ghidra extension unrelocates machine code through analysis and then synthesizes a working object file from a listing selection. It effectively turns computer programs into Lego bricks, to be torn down into pieces and reused into something new. It supports the COFF and ELF object file formats, for the x86 and MIPS architectures. It has been successfully used on Linux, Windows and PlayStation executables. One user report is on a commercial video game from 2009 with a ~7 MiB Windows executable written in C++: it was delinked without its C runtime library and then relinked into a new…
In plain words
This Ghidra extension extracts selected machine code from compiled programs and converts it into reusable object files in COFF or ELF formats. It supports x86 and MIPS architectures and has worked on Linux, Windows, and PlayStation executables. The tool analyzes and unrelocates code to create standalone components that can be relinked elsewhere, enabling uses like modding, porting software, and converting file formats.
written from the facts on this page · September 2026
From the sources
In the maker’s words, at launch
This Ghidra extension unrelocates machine code through analysis and then synthesizes a working object file from a listing selection. It effectively turns computer programs into Lego bricks, to be torn down into pieces and reused into something new. It supports the COFF and ELF object file formats, for the x86 and MIPS architectures. It has been successfully used on Linux, Windows and PlayStation executables. One user report is on a commercial video game from 2009 with a ~7 MiB Windows executable written in C++: it was delinked without its C runtime library and then relinked into a new executable at a different base address, with no visible change in functionality, as a prelude to a decompilation project. Use-cases I've demonstrated on my blog include modding, making software ports, converting executable file formats, creating libraries... I've originally built this as part of a video game decompilation project ; I've been working on this over the past 2.5 years and recently it has started gaining some users besides me.
Does the same job
all alternatives →- AGA Ghidra extension that turns programs back into object files2024 · github.com · ▲7
Hi all, I've been working on tooling that can reverse the work of a linker. It allows one to take bits and pieces of an executable and delink them into working object files, which can then be reused as-is to make new programs or libraries, without having to decompile or disassemble them first. The readme has links to my blog demonstrating some of the use-cases. The most impressive one so far is making a port of a ~100 KiB Linux a.out i386 program to a native Windows PE i386 executable, despite not having access to its original source code or even decompiling it. Currently, 32-bit i386 and…
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