Description Scott Gary 2011-11-07 17:01:46 EST

Currently gnu targets are built with ITarget.alignDirectiveSupported as the default of "false". This requires runtime fix ups of statically allocated buffers.  For example, SYS/BIOS's HeapBuf and Task use Memory.staticPlace, which calls obj.$$alloc().  Currently obj.$$alloc() only supports TI alignment, so alignment fix-up at runtime is needed for gnu. 

Request that obj.$$alloc() be enhanced to support alignment for gnu too.  There is no pragma comparable to TI's for this, but "attribute" can be used.  From the description of the "aligned" attribute in the gcc docs:

aligned (alignment)

This attribute specifies a minimum alignment for the variable or structure field,
measured in bytes. For example, the declaration:

int x __attribute__ ((aligned (16))) = 0;

causes the compiler to allocate the global variable x on a 16-byte boundary.