Re: Fwd: [avr-libc-dev] Problem with unsigned long long printf()

[E. Weddington]

Theodore A. Roth wrote:

> To me, this looks suspiciously like gcc is not handling the
>
>  a.ull = va_arg (ap, unsigned long long);
>
> call correctly when the type is 64 bits. when passing a 64 bit variable
> by value, gcc pushes the 8 bytes onto the stack instead of passing via 8
> registers. If my analysis is correct, then there's a bug in gcc. 

I'm not even sure that handling of 64 bit types was even put into the 
AVR port..... This might be more of a misfeature than a bug per se. Does 
anybody know for sure? (Denis? Marek?)

Eric