Hello Simon, when I try to run ./u-boot -l the sandbox stalls. Shouldn't it run out of the box?
$ ./u-boot -l -d arch/sandbox/dts/sandbox.dtb U-Boot 2020.10-rc4-00018-g21a10244f9-dirty (Sep 19 2020 - 19:55:39 +0200) Model: sandbox DRAM: 128 MiB Warning: host_lo MAC addresses don't match: Address in ROM is 26:4b:ca:6c:98:f4 Address in environment is 00:00:11:22:33:44 Warning: host_virbr0 MAC addresses don't match: Address in ROM is ee:3e:c9:ce:1f:9c Address in environment is 00:00:11:22:33:45 Warning: host_docker0 MAC addresses don't match: Address in ROM is c2:85:07:7b:9a:18 Address in environment is 00:00:11:22:33:46 WDT: Not found! MMC: No output after this point. The problem also exists with U-Boot v2020.07, v2019.10, v2018.11. CONFIG_SANDBOX_SDL=y SDL_InitSubSystem() never returns. It is looping somewhere in U-Boot's __serial_getc(). I wonder how it gets there without returning from the function. I compiled SDL2.cpp from https://gist.github.com/miguelmartin75/6946310#file-sdl2-cpp-L18 with g++ SDL2.cpp -D_REENTRANT -I/usr/include/SDL2 -lSDL2 -lGL -o test and it runs fine showing an X11 windows with red background. So there seems to be no general problem with the SDL2 library. Best regards Heinrich
