uSTL hello world (linker issue fix)

[John Dallaway]

Hi Uwe

Uwe Kindler wrote:

> according to the discussion on the ecos-discuss mailinglist
> (http://ecos.sourceware.org/ml/ecos-discuss/2009-09/msg00259.html) I
> created a patch that fixes the linker issue of the uSTL hello world
> example.
> 
> I tested the solution with differend configurations (-O0 and -O2) and it
> worked all the time.

Thank you for the patch. I have verified that the new definition of
CYG_REFERENCE_OBJECT() is compatible with the older eCos toolchain (GCC
3.2.1) so I will check this in.

>From your description, it would appear that moving the lines:

    CYG_REFERENCE_OBJECT(stdin);
    CYG_REFERENCE_OBJECT(stdout);
    CYG_REFERENCE_OBJECT(stderr);

from open() to cyg_fd_init() is not now necessary for correct behaviour
of the minimal uSTL hello world application. However, it may or may not
be sensible to make this change anyway. I will leave this to Jifl/Nick.

John Dallaway