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RE: [avr-gcc-list] Bug? gcc silently assumes mcu model when linking, cre

From: Weddington, Eric
Subject: RE: [avr-gcc-list] Bug? gcc silently assumes mcu model when linking, creating bad executable
Date: Mon, 21 Apr 2008 12:33:09 -0600


> -----Original Message-----
> From: Joerg Wunsch [mailto:address@hidden 
> Sent: Monday, April 21, 2008 10:34 AM
> To: address@hidden
> Cc: Weddington, Eric
> Subject: Re: [avr-gcc-list] Bug? gcc silently assumes mcu 
> model when linking,creating bad executable
> As Weddington, Eric wrote:
> > > My guess is all this comes from a time when AVR-GCC was created,
> > > and there were maybe three or four different AVRs only, so it did
> > > make some sense for it to default to one of them (IIRC, it
> > > defaults to the AT90S8515).
> > I thought it defaults to an architecture, avr2 to be exact.
> As the linker has to default to some crt*.o file, it effectively
> defaults to a particular device.  But those days, the differences
> between an architecture and a particular device were probably
> neglicible...

Then a GCC bug report should be filled out and set it to "enhancement"
to give an error if -mmcu is not on the compile and link command line.

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