Places the data objects ' all' or smaller than ' size' bytes in the .sdata section.
-sdata all|size
The size value specifies the maximum size, in bytes, of all the objects in the small data section (typically named " .sdata"). The linker places the objects that are greater than this size in the data section (typically named ". data") instead.
The default value for size is 8.
This is both a linker and a compiler option.