Re: [avr-gcc-list] Growing .data section when compiling with GCC 4.0 instead of GCC 3.4.3

[E. Weddington]

Dave Hylands wrote:

> Hi Eric,
>
>  
[Discussions about switch statements getting compiled into jump tables 
with the jump tables stored in RAM.]

> > I'm not sure that it is a bug, per se. It's known that some swtich
> > statements get compiled into tables which can increase the size of the code.
> >    
>
> It's really an issue of whether the tables are stored in flash or in
> RAM. Actually, because they're in RAM, they take up space twice, once
> in flash (used to initialize the RAM) and once in RAM, where they're
> actually used.
>
>  
Sure. I don't know for sure, though, but I would guess that that section 
of the port hasn't really changed, so in essence it's not a bug. It's a 
mis-feature, so technically it would be an enhancement request. Somebody 
who is more familiar with the AVR port (see new additions to CC list) 
can perhaps comment.

Eric