Re: Re: [arm-gnu] Huge Code Size CodeSourcery G++ Lite

[Kishore <kitts.mailinglists@xxxxxxxxx>]

On Friday 01 Jul 2011 6:39:41 AM 42Bastian wrote:
> Hi
> 
> > Recently, I tried building a project on Cortex-M3 using the CodeSourcery G++ Lite. However, the size of the binary becomes huge.
> > 
> > As a comparison to a commercial toolchain, here is the difference of the .bin for a simple "blink" application:
> > 
> > Commercial IDE: 4.6KB
> > Eclipse IDE with CodeSourcery G++ Lite: 14.3KB
> > 
> > Any ideas? Is this normal, or are we making some stupid mistakes?
> 
> Commercial tool chains often do automatically what LD needs to be told:
> Remove unused sections.
> 
> Try linking with --gc-sections

...And also try adding --ffunction-sections and -fdata-sections to your compile options.

Cheers!
Kishore