Ryan Houdek
79f7dcbaa5
Allows us to consume an array of strings and convert it to an mask of enum values. This is a quality of life change that allows us to specify a mask of options. The first configuration option added to support this is to control the vixl disassembler. Now by default the vixl disassembler doesn't disassemble any blocks and needs to be enabled individually. eg: ``` FEXLoader --disassemble=blocks <args> FEXLoader --disassemble=dispatcher <args> FEXLoader --disassemble=blocks,dispatcher <args> ``` Has the additional convenience option of just passing in numbers as well. ``` FEXLoader --disassemble=2 <args> FEXLoader --disassemble=1 <args> FEXLoader --disassemble=3 <args> ``` Also of course all of this works through environment variables. ``` FEX_DISASSEMBLE=blocks FEXInterpreter <args> FEX_DISASSEMBLE=dispatcher FEXInterpreter <args> FEX_DISASSEMBLE=blocks,dispatcher FEXInterpreter <args> ``` While only used fairly sparingly now, this is likely to have some additional configurations using this in the future. Since we already have some configs that are basically using enums, but just by doing string comparisons. This was asked for by a developer, so I figured I would throw it together quick.
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 5.0 interface to the guest, and supports both AArch64 and x86-64 as hosts. FEX is very much work in progress, so expect things to change.
Quick start guide
For Ubuntu 20.04, 21.04, 21.10, 22.04
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, ARMv8.1+, and x86-64(AVX or newer) hardware. ARMv7 and older x86 hardware will not work. Expected operating system usage is Linux. FEX has been tested with Ubuntu 20.04, 20.10, and 21.04. Also 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
