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Simple Directmedia Layer
https://libsdl.org
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[ARM NEON] "Performing Test ARMNEON_FOUND - Failed" even though the SBCs support NEON #4174

Closed SupervisedThinking closed 11 months ago

SupervisedThinking commented 3 years ago

I build a SDL2 package for my LibreELEC 10 fork but even though -DARMNEON=ON is set the assembly test fails with:

-- Performing Test ARMNEON_FOUND
-- Performing Test ARMNEON_FOUND - Failed

The target systems are e.g. RK3399, A311D SBCs and support NEON. The build host is a generic x86_64 system so I cross-compile SDL2.

sdl2 package: https://github.com/SupervisedThinking/LibreELEC-RR/blob/libreelec-10.0-RR/packages/supervisedthinking/multimedia/SDL/sdl2/package.mk

CMake build log: https://pastebin.com/PUnhQ65k

CMakeError.log https://pastebin.com/SwhwVjzn

Cacodemon345 commented 3 years ago

A glance at the error log hints at either CMake or the assembler generating garbage code.

SupervisedThinking commented 3 years ago

Obviously that's the reason why the check fails ^^ the "assembler" is probably GCC10.2, at least from my experience usually gcc is used for assembler code when used in libretro cores.

icculus commented 3 years ago

Moving files to GitHub in case we lose them on pastebin.

SDL2 git 3a1317e ARMNEON RK3399.txt SDL2 git 3a1317e build log.txt

slouken commented 11 months ago

SDL 2.0 is now in maintenance mode, and all inactive issues are being closed. If this issue is impacting you, please feel free to reopen it with additional information.