[En-Nut-Discussion] Realy strange linker problem with NutOS 4.4.0 for Ethernut 3.0 (ARM)

[Ole Reinhardt]

Hi,

> > Everything works fine until I use the strdup() function in my sources.
> 
> strdup() is not supplied by Nut/OS. Thus, it will collect the missing 
> routine from the newlib, which is part of your ARM toolchain. However, 
> more dependencies are created and finally you end up with lots of linker 
> errors and duplicates.

Ok. I did not dig into what is linked and what not. Strdup is supplied
in nut/c/string/strdup.c. After looking a bit deeper, it seems only to
be compiled for platforms not providing these libs.

Strange is, that all other funcions provided in nut/c/string/ are not
linked either and seem to be provided by newlib. Using them does not
trigger this problem.

> Specific solution: Add an strdup() implementation to your application code.

That's what I've done.

Thanks,

Ole


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