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

From: E. Weddington
Subject: Re: [avr-gcc-list] 3.3 windows compiler
Date: Mon, 25 Nov 2002 12:04:59 -0700

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:



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