Cannnot build mupen64 on raspbian bookworm

myslaw

Hello,
I currently own raspberry pi 5 with 8GB of RAM and raspbian 12 bookworm. I use official raspberry pi 5 power supply.
The result of uname -a, is:

Linux raspberrypi 6.1.0-rpi8-rpi-v8 #1 SMP PREEMPT Debian 1:6.1.73-1+rpt1 (2024-01-25) aarch64 GNU/Linux

uname -m, gives:

aarch64

I tried to follow manual installation steps, but it always ends with mupen64 error. It does not seem to bother other emulators, because NES and SNES games are working flawlessly.
I ran apt update & upgrade to make sure everything is up to date.

After investigating the logs created after installation, I found that there are several ARM registers errors.

mupen64plus-core/src/device/r4300/new_dynarec/arm64/linkage_arm64.S: Assembler messages:
mupen64plus-core/src/device/r4300/new_dynarec/arm64/linkage_arm64.S:63: Error: ARM register expected -- `mov
 w0,w1'
mupen64plus-core/src/device/r4300/new_dynarec/arm64/linkage_arm64.S:67: Error: ARM register expected -- `mov
 w0,w2'
mupen64plus-core/src/device/r4300/new_dynarec/arm64/linkage_arm64.S:71: Error: ARM register expected -- `mov
 w0,w3'

Those errors seems to be the cause for next errors, which are:

make: *** [Makefile:667: mupen64plus-core/src/device/r4300/new_dynarec/arm64/linkage_arm64.o] Error 1
make: *** Waiting for unfinished jobs....
/tmp/ccPNDa7x.s: Assembler messages:
/tmp/ccPNDa7x.s:13946: Error: selected processor does not support requested special purpose register -- `mrs r4,ctr_el0'
/tmp/ccPNDa7x.s:13986: Error: bad instruction `dc civac,r10'
/tmp/ccPNDa7x.s:14005: Error: selected processor does not support `dsb ish' in ARM mode
/tmp/ccPNDa7x.s:14018: Error: bad instruction `ic ivau,r0'
/tmp/ccPNDa7x.s:14032: Error: selected processor does not support `dsb ish' in ARM mode
/tmp/ccPNDa7x.s:14035: Error: selected processor does not support `isb' in ARM mode
/tmp/ccPNDa7x.s:15022: Error: selected processor does not support requested special purpose register -- `mrs r2,ctr_el0'
/tmp/ccPNDa7x.s:15058: Error: bad instruction `dc civac,r4'
/tmp/ccPNDa7x.s:15075: Error: selected processor does not support `dsb ish' in ARM mode

Those issues combined finally result in this last error message found in the logs:

make: *** [Makefile:670: mupen64plus-core/src/device/r4300/new_dynarec/new_dynarec.o] Error 1
Could not successfully build lr-mupen64plus-next - N64 emulator - Mupen64Plus + GLideN64 for libretro (next version) (/home/myslaw/Downloads/RetroPie-Setup/tmp/build/lr-mupen64plus-next/mupen64plus_next_libretro.so not found).

I tried to fix the issue by installing vulkan, as suggested in some thread, but that did not help. I also tried to run the setup script with some __=rpi parameter as suggested in other thread, but that also did not help.

Is there something I could do to fix the issue. What am I missing?
I will be glad for any help I can get.

abj

@myslaw

Do you have set in /boot/firmware/config.txt file this parameter?

kernel=kernel8.img

myslaw

@abj Now I've added that parameter at the top of /boot/firmware/config.txt file, rebooted. Then I've executed RetroPie-Setup script and chosen following options:
Manage packages -> main -> lr-mupen64plus-next -> install from source -> yes

It failed with same errors. So I tried:
Manage packages -> main -> mupen64plus -> install from source -> yes

That didn't help either.

abj

I can't reproduce this issue. Both mupen64plus andlr-mupen64plus-next installed without issues.

mitu

@myslaw said in Cannnot build mupen64 on raspbian bookworm:

Is there something I could do to fix the issue. What am I missing?

You're probably using the wrong installation image. Did you install the 32bit RaspiOS image on the Pi5 ? Reinstall using the 64bit image.

myslaw

@mitu Is there any way I can validate that? I didn't install it myself, since I bought official SD card, with the system preinstalled.

mitu

@myslaw said in Cannnot build mupen64 on raspbian bookworm:

@mitu Is there any way I can validate that?

Validate what, exactly ? I can confirm - just like @abj did - that Mupen64Plus has no issues compiling/installing on a 64bit operating syste.

I didn't install it myself, since I bought official SD card, with the system preinstalled.

That's ok, you can install it yourself if you have a spare PC from https://www.raspberrypi.com/software.

myslaw

@mitu said in Cannnot build mupen64 on raspbian bookworm:

Validate what, exactly ?

That I am running 32bit RaspiOS image, rather than 64bit image. All ways I've checked on web, seem to indicate, that I am currently on 64bit system. Maybe I missed something.

@mitu said in Cannnot build mupen64 on raspbian bookworm:

That's ok, you can install it yourself if you have a spare PC from https://www.raspberrypi.com/software.

After using raspberry imager with 64bit system, all build stages ended successfully.

Thank you for helping me!

mitu

That I am running 32bit RaspiOS image, rather than 64bit image. All ways I've checked on web, seem to indicate, that I am currently on 64bit system. Maybe I missed something.

Maybe. Run the following command

getconf LONG_BIT

and it should print the 'bits' used by the OS (not the kernel). If it says 32, then you're running a 32bit OS, otherwise (prints 64) you're on a 64bit OS.

NB: the Pi5 cannot run with a 32bit Linux kernel and even when installing the RaspiOS 32bit version it will boot with a 64 bit kernel. Any commands involving uname to determine whether the system is 32 or 64bits will show the wrong result on a 32bit system, since the kernel is 64 bit. TL;DR - use the 64 bit image for Pi4 / Pi5.

myslaw

@mitu Ah, good to know. Might be handy in the future.

Changing the image to 64 bit resolved all the building issues, so after running the RetroSetup script, no errors were logged.