Re: [avr-gcc-list] 3.3 windows compiler

[E. Weddington]

On 24 Nov 2002 at 10:36, Larry Barello wrote:

> I downloaded the WinAvr set
> 
> http://savannah.nongnu.org/download/avr-libc/snapshots/
> 
> and, with some fooling around, got it to work.  For some reason "make"
> couldn't exec avr-gcc unless the directory pointing to it was early in
> the path (win XP), which is odd since it is the same version as in the
> 3.2 and 3.02 releases on AvrFreaks.  I am guessing some sort of buffer
> overrun problem in the support library.  Also, it doesn't contain the
> patch for Atmel Object format, so if elfcoff doesn't work, and you
> don't use GDB, you are out of luck.

As another poster wrote in reply, check out objtool to convert from 
ELF to COFF. objtool is supported and works better than elfcoff.

> 
> Anyway, what is the current suite of command line options recommended
> for compact compilations?  Right now I am just using -Os as
> -fno-reorder-blocks doesn't seem to make a difference. The resulting
> code is slightly larger than 3.2 and 3.02 (~32 bytes/4k)
> 

GCC Optimizer flags:

http://gcc.gnu.org/onlinedocs/gcc/Optimize-
Options.html#Optimize%20Options

Eric

avr-gcc-list at http://avr1.org