Ryan Houdek
982a05450c
I kept finding I needed `./fex_shm_stats_read `FEXpidof Celeste.exe``
but FEXpidof wasn't ever wired up to find FEX in the face of emulating
wine and arm64 wine.
This adds two new features basically:
- If x86 wine is being emulated, then walk the argument list just like
our config options to see what the program executable name is.
- If it is arm64 wine using FEX, then we need to detect that, and walk
the arguments in a similar fashion
The detection is the main thing here in that the only way to detect FEX
for arm64 wine is checking the applications mapped files and seeing if
it is mapping arm64ecfex.dll or wow64fex.dll.
x86 Wine is easy since that's just skipping the wine{64,}{-preloader,}
arguments to get to the executable name.
FEX - Fast x86 emulation frontend
FEX allows you to run x86 and x86-64 binaries on an AArch64 host, similar to qemu-user and box86. It has native support for a rootfs overlay, so you don't need to chroot, as well as some thunklibs so it can forward things like GL to the host. FEX presents a Linux 5.15+ interface to the guest, and supports only AArch64 as a host. FEX is very much work in progress, so expect things to change.
Quick start guide
For Ubuntu 22.04, 24.04 and 24.10
Execute the following command in the terminal to install FEX through a PPA.
curl --silent https://raw.githubusercontent.com/FEX-Emu/FEX/main/Scripts/InstallFEX.py --output /tmp/InstallFEX.py && python3 /tmp/InstallFEX.py && rm /tmp/InstallFEX.py
This command will walk you through installing FEX through a PPA, and downloading a RootFS for use with FEX.
Ubuntu PPA is updated with our monthly releases.
For everyone else
Please see Building FEX.
Getting Started
FEX has been tested to build and run on ARMv8.0+ hardware. ARMv7 hardware will not work. Expected operating system usage is Linux. FEX has been tested with the following Linux OSes:
- Ubuntu 22.04
- Ubuntu 24.04
- Ubuntu 24.10
- Arch Linux
On AArch64 hosts the user MUST have an x86-64 RootFS Creating a RootFS.
Navigating the Source
See the Source Outline for more information.
Building FEX
Follow the guide on the official FEX-Emu Wiki here.
RootFS generation
AArch64 hosts require a rootfs for running applications. Follow the guide on the wiki page for seeing how to set up the rootfs from scratch https://wiki.fex-emu.com/index.php/Development:Setting_up_RootFS
