"H.J. Lu" <hjl.to...@gmail.com> writes: > On Wed, Dec 1, 2010 at 5:53 PM, Ian Lance Taylor <i...@google.com> wrote: > >> Or I'll rephrase: are there any cases for which using -pass-through for >> the set of libraries that the gcc driver automatically adds to the end >> of the link line would not be a complete solution? >> >> I'm not saying -pass-through is the solution we should be using. It's >> clearly a bit of a hack. However, I am asking the question seriously, >> because if we have to do a complete relink, then let's do a complete >> relink, but if we don't have to do one, let's definitely not. > > Nothing can't be solved with a hack :-).
I propose that we add a new linker option: --plugin-callback. At each point where this option appears on the command line, the linker will call a new plugin callback entry point. The LTO plugin will replace the all_symbols_read callback with this one. We will have the gcc driver run the linker more or less like this: object-files -lc -lgcc --plugin-callback -lc -lgcc crtend.o crtn.o Ian
