Which cmake option to use with Raspberry pi 5?

[martinerk0]

I see in cmake there is:
add_definitions(-marm -march=armv8-a+crc -mtune=cortex-a72 -mfpu=neon-fp-armv8 -mfloat-abi=hard)

but rpi 5 has Cortex-A76.

[ptitSeb]

I don't have a PI5, so I haven't not added a profile.
Also, it might depend wich OS you are using: if I understood correctly, RPiOs for RPI5 is using a 16K page size (instead of the default 4K used on x86), while ubuntu still use a 4K page size?
So, you can use profile a generic ARM64 profile for now. But you might also need to use PAGE16K switch too. And a finale not: while box64 support different pagesize, most x86 program are designed for a 4K pagesize, and box64 doesn't not emulate 4K page, so many things (like wine) will not work on 16K pagesize (some linux games do works).

[martinerk0]

I'm getting:
box86: error while loading shared libraries: libm.so.6: ELF load command address/offset not page-aligned
when running box86, I didn't get that while trying it on RPi 4, do you think it might be because of the 16K page size?
I will try the Ubuntu next, which should have 4K page as you said.

[ptitSeb]

Oh, yeah! I forgot that I have not added custom pagesize in box86, it's only on box64 for now!

[martinerk0]

I'm able to run steam launcher with Ubutnu 23.10 now.
I've compiled from source using generic profile box86, box64 and then ran install_steam.sh

BTW, where does the install script install the steam?
I thought you need
sudo dpkg - steam_latest.deb
To install it.

and with your script I got
mv: cannot move './usr/bin' to '../bin': Directory not empty mv: cannot move './usr/lib' to '../lib': Directory not empty mv: cannot move './usr/share' to '../share': Directory not empty

I then downloaded steam from website and used dpkg -i but after trying to run Counter Strike I got:
Failed to create SDL window

[ptitSeb]

you don't need to install steam_latest.deb because it might install i386 arch and setup qemu-user which will conflict with box86.

the install_steam.sh script install steam in ~/.steam and create a startup script in /usr/local/bin/steam

[martinerk0]

I see. For some reason the install_steam.sh didn't create ~/steam directory, but when I tried commands from it one by one it worked.
BTW what is this line supposed to do? ~/steam/bin/steam $@" > steam
What is purpose of $@ here? Because I think echo expands it to nothing.

[ptitSeb]

Ah, I should have escape the $ and @, because that needs to go inside steam shell script, and is not supposed to be interpreted there. I'll try to fix the script later.
It's not mandory, but it's needed if you plan to launch steam game from command line. If you just plan to use the GUI of steam, it's ok.

[martinerk0]

I ran Counter Strike on large display, so that's nice 👏 I will try more games later. I guess with newer games and higher proton versions there is chance that there is some incompatibility between ubuntu's 23.10 mesa and proton?
Do some games like Witcher 3 need Wine? I thought proton is essentially Wine for games.

[ptitSeb]

Witcher 3 is a windows only game, so it'll use Proton on steam yes.

[martinerk0]

Do I need som other variables set? I have:

#!/bin/bash
export STEAMOS=1
export STEAM_RUNTIME=1
export DBUS_FATAL_WARNINGS=0

in /usr/bin/local/steam

[ptitSeb]

On PI, you might want to add MESA_GL_VERSION_OVERRIDE=3.3 because I think opengl is still 2.1 only even on PI5?

(side note: Elden Ring will not work, it use EAC and it's not supported on box86/box64 for now)

[martinerk0]

Using glxinfo:

OpenGL core profile version string: 3.1 Mesa 23.2.1-1ubuntu3
OpenGL ES profile version string: OpenGL ES 3.1 Mesa 23.2.1-1ubuntu3

[ptitSeb]

Yeah, but most Unity3D games needs at least OpenGL 3.3 to work, so my suggestion still applies.

[ComTols]

I have read all your comments but didn´t understand how to compile on Raspberry Pi 5. How can I set the PAGE16K? I tryed this:

$ mkdir build; cd build; cmake .. -DARM64=1 -DPAGE16K=1 -DCMAKE_BUILD_TYPE=RelWithDebInfo

-- Found Python3: /usr/bin/python3 (found version "3.11.2") found components: Interpreter
-- The C compiler identification is GNU 12.2.0
-- The ASM compiler identification is GNU
-- Found assembler: /usr/bin/arm-linux-gnueabihf-gcc
-- Detecting C compiler ABI info
-- Detecting C compiler ABI info - done
-- Check for working C compiler: /usr/bin/arm-linux-gnueabihf-gcc - skipped
-- Detecting C compile features
-- Detecting C compile features - done
-- Configuring done
-- Generating done
CMake Warning:
  Manually-specified variables were not used by the project:

    PAGE16K


-- Build files have been written to: /home/comtols/Downloads/box86/build

As you see this flag was not accepted. But when i run make, I got tones of notes and warnings.

Sry if this is a dump question, but I don´t understand it.

[KreitinnSoftware]

-RPI5ARM64PS16K -DARM_DYNAREC=1

[ptitSeb]

There is no 16k pagesize option in box86.