[ECOS] variable length automatic arrays.

Andrew Lunn andrew@lunn.ch
Sun Apr 17 16:09:00 GMT 2005


On Sun, Apr 17, 2005 at 11:16:22AM -0400, Billy wrote:
> Short question:
> 
> Does eCos allocate dynamically sized arrays?
> 
> Longer version:
> 
> I'm worried about dynamic arrays under arm-elf-gcc 3.3.4.
> 
> Looks like our application code, at least, is being adversely
> affected by this bug:
> 
> "gcc-3.3: Miscompiles automatic dynamic arrays"
> http://lists.debian.org/debian-gcc/2004/07/msg00135.html
> 
> So we're going through our app hunting these down.  Upgrading
> the compiler to 3.4 might fix it, but new parser fussiness
> appears to be making that a more painful option than bughunting.
> 
> Does eCos code rely on this gcc feature?  Do we have
> to audit eCos code for varlength automatic arrays
> or just our app code?

eCos should not be using this feature. 

        Andrew

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