Hello,
Robert Kaiser wrote:
Hello Adam
Robert Kaiser wrote:
Just tried a rawimage -> still silence on the serial port :-(. It may be due a configuration mistake. I guess I'll have to wade through the code to find out where it goes wrong -- stay tuned.
I've tracked it down a little further:
Booting a rawimage basically works, i.e. the bootloader copies itself the right place in memory and starts executing. It gets to the point where it wants to print its first message -- and that's where it crashes :-(.
The crash happens during a division computed in fputs.c. The compiler calls a libgcc routine named __aeabi_uidiv which apparently throws an exception. (However it is *not* a divide by zero exception -- I have checked the values).
Time to try a different toolchain, I guess. So far, I have been using the linaro toolchain (gcc-linaro-arm-linux-gnueabihf-4.8-2013.08_linux). Can you please tell me which toolchain you have used (and where to obtain it)?
OK, I read somewhere else that the Codesourcery toolchain is recommended. (You have to register with Mentor to obtain it which is why I initially chose the linaro toolchain). Anyway: I recompiled everthing with arm-2013.05/arm-none-linux-gnueabi. This fixed the crash problem, so the linaro toolchain is definitely broken!
Unfortunately, it *still* doesn't work. The last messages I see trying to run the bootstrap_hello example are:
MOE: cmdline: moe --init=rom/hello MOE: Starting: rom/hello MOE: loading 'rom/hello' L4Re: unhandled exception: pc=0xffffff9c
Any hints what could be wrong now?
Cheers
Robert