"H.J. Lu" <hjl.to...@gmail.com> writes: > On Wed, Dec 1, 2010 at 4:48 PM, Ian Lance Taylor <i...@google.com> wrote: >> "H.J. Lu" <hjl.to...@gmail.com> writes: >> >>> __udivdi3 is just an example. It can also happen to memcpy, or >>> any library calls generated by GCC. I am enclosing a testcase for memcpy. >> >> I believe we can solve that specific problem much more efficiently than >> requiring a complete link of all the input files. We currently solve it >> using the -pass-through option which is passed to the linker plugin. >> Are there any cases for which using -pass-through=-lc >> -pass-through=-lgcc would not be a complete solution? >> > > http://gcc.gnu.org/bugzilla/show_bug.cgi?id=46760
Sigh, OK, so I'll just add -pass-through=-lgcov when appropriate. 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. Ian
