[ECOS] Linking problem when removing ISO C standard input/output functions

Ross Younger ecos@impropriety.org.uk
Wed Sep 7 07:30:00 GMT 2011


On 07/09/11 09:33, Alois Z. wrote:
> I have a very strange problem. I'm currently removing not needed features from my eCos configuration in order to save some space for a rather small system.

Generally, removing features from your eCos configuration doesn't save 
you anything in your built image. eCos was specifically designed to make 
good use of link-time garbage collection; that is to say, if your 
application doesn't use a facility provided by the OS, the code for that 
facility does not appear in the final linked image. So to achieve a 
smaller footprint, you have to make your application use less of the OS.

An alternative strategy for you might be to start with the `minimal' 
eCos template and build up your configuation from there based on what 
your application actually needs. This may not save you very much, for 
the reasons described above.


Ross

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