public long getSize() {
		return st_size;
	}
Many symbols have associated sizes. For example, a data object's size is the number of
bytes contained in the object. This member holds 0 if the symbol has no size or an
unknown size.
@return the symbol's size
Ghidra/Features/Base/src/main/java/ghidra/app/util/bin/format/elf/ElfSymbol.java