gcc parameter uncertainty

[Kyrill Tkachov]

On 07/04/15 03:30, Hooao wrote:
> Hi
> I would like using a SERIAL PORT printing some debug message on my hardware
> platform, so I need to write a function like "printf". But I don't exactly
> know HOW THE GUN COMPILER deal with "parameter uncertainty". Would some guys
> help me?? Many THANKS.

If you have a bare-metal platform and you want to do some IO on it,
you might want to look at libgloss, which is part of newlib AFAIU.
newlib is a C-library for embedded systems and will have an
implementation of printf that works on embedded devices.

Kyrill

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