On Wed, May 26, 2010 at 5:53 PM, Bingfeng Mei <b...@broadcom.com> wrote: > Hi, Richard, > With resolution file generated by GOLD (or I am going to hack gnu LD), is > externally_visible attribute still needed to annotate those symbols accessed > from non-LTO objects when compiling with -fwhole-program.
Yes it is. We do not parse the complete resolution file but only the entries we'll end up reading .o files with LTO information for. > In theory, it shouldn't be needed since LTO has all information. But what > about current implementation. I checked relevant source files and can't > get immediate clue. The current implementation has no idea of the external references (though it's probably not too hard to implement). Richard.
