From mboxrd@z Thu Jan 1 00:00:00 1970 From: Simon Glass Date: Sun, 27 Sep 2020 22:24:38 -0600 Subject: [BUG] sandbox: './u-boot -l ' fails In-Reply-To: References: Message-ID: List-Id: MIME-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit To: u-boot@lists.denx.de Hi Heinrich, On Sat, 19 Sep 2020 at 13:48, Heinrich Schuchardt wrote: > > 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 For the record you should be able to use -D to get the same effect as your -d above. > > 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. I hit this myself on another computer and it turned out to be that SDL defined getc(), as does U-Boot, and things get confused. At least I think it is getc. I hacked around with changing the name of getc (I think it was getc) in U-Boot and the problem went away. Regards, Simon