[[!template id=project

title="Userspace Emulation For Fun And Profit"

contact="""
[jkoshy@NetBSD.org](mailto:jkoshy@NetBSD.org)
"""

mentors="""
[Joseph Koshy](mailto:jkoshy@NetBSD.org)
"""

category="userland"
difficulty="hard"
duration="3 months"

description="""
Execute non-native executables directly by passing them to an instruction set emulator at `execve()` time.

For more information, please see: [NetBSD ∘ (NetBSD ∘ Toaster) / jkoshy.net](https://jkoshy.net/projects/netbsd-on-netbsd-on-a-toaster.html).

This is not an easy project.  It touches upon:

- Linking and loading,
- Instruction set architectures,
- Binary emulation,
- POSIX compatibility,
- and others.

It also has a small kernel component involving changes to the `execve()` path.

Primary milestones:

- (Proof of concept) Invoke **qemu** in its 'User-Mode Emulation' mode on a non-native binary.
"""
]]

[[!tag gsoc]]