Not sure exactly which part of the article you're talking about, but Ulrich does say:
> If the programmer marks the variables correctly with const, the tool chain
> will move the variables away from the normal variables into the .rodata
> (read-only data) or .data.rel.ro (read-only after relocation) section [...]
> No other special action is required. If, for some reason, variables cannot
> be marked correctly with const, the programmer can influence their
> placement by assigning them to a special section.