[ECOS] Question about CYG_HAL_TABLE usage

[Daniel Helgason]

On Fri, 2013-10-11 at 21:48 +0000, Grant Edwards wrote:
> I'm working with an app that uses the CYG_HAL_TABLE macros for seveal
> different purposes.  I've always thought that the "END" label was at
> the end of the "array" of objects, such that you can iterate a table
> like this:
> 
> 
>   for (p = __foo_TAB__; p < __foo_TAB_END__; ++p)
>     {
>       // process object pointed to by p    
>     }    
> 
> But this seems not to be the case.  At least for Cortex M3 targets The
> END label is aligned on an 8-byte boundary so that there may be up to
> 7 bytes of padding between the end of the table and the END label.
> ...

Yes, 8-byte alignment is the default alignment for entries in the
tables.

Check out hal/common/current/include/hal_tables.h and in particular
CYG_HAL_TABLE_TYPE macro. That should fix the problem.



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