Hi, On Fri, 18 May 2018, Richard Biener wrote:
> Interesting. Do they allow merging across such sections? Consider a 8 > byte entity 0x12345678 and 4 byte entities 0x1234 0x5678, will the 4 > byte entities share the rodata with the 8 byte one? There's no language to forbid this (as long as the alignments are respected), but at least GNU ld currently only merges same-sized entities. > I believe GCC pulls off such tricks in its internal constant pool > merging code. > > It might be worth gathering statistics on the size of constant pool > entries for this. > > Now the question is of course if BFD contains support for optimizing > those sections. You mean to ask if GNU ld is actually uniquifying contents of such mergable sections over object files? If so the answer is yes. Ciao, Michael.
