[ECOS] Problem with CYG_HAL_TABLES

[Jay Foster]

I have used the CYG_HAL_TABLE mechanism before with success, but I am 
now running into an alignment problem with a new application.  This is 
on an ARM architecture.

I have an object defined as:

typedef struct
{
  ....
} CYG_HAL_TABLE_TYPE MY_TYPE;

I then declare the HAL table array as:

CYG_HAL_TABLE_BEGIN( _MY_LABEL_, _my_name_ );
CYG_HAL_TABLE_END( _MY_LABEL_END_, _my_name_ );

I then place two instances of the object into the HAL table array:

MY_TYPE  my_instance1 CYG_HAL_TABLE_QUALIFIED_ENTRY(_my_name_, 2) =
{
     ....
};

MY_TYPE  my_instance2 CYG_HAL_TABLE_QUALIFIED_ENTRY(_my_name_, 3) =
{
     ....
};

I then iterate the table using:

    MY_TYPE *p;

     for (p=&(_MY_LABEL_[0]); p!=&(_MY_LABEL_END_); p++)
     {
     }

This fails due to alignment issues:

     The _MY_LABEL_ is not at the same address as the first element in 
the array (my_instance1) due to alignment issues.  The iteration then 
fails.  _MY_LABEL_ is aligned on a 4 byte boundary and the array 
elements are aligned on 16 byte boundaries.  Is there any way to make 
this work?

Jay


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