On Fri, Dec 21, 2012 at 6:33 AM, Alexandre Oliva <aol...@redhat.com> wrote: > libmudflap emits a global initializer that registers memory ranges for > global data symbols. However, even if IPA decides not to emit a symbol > because it's unused, we'd still emit registration sequences for them in > some cases, which, in the PR testcase, would result in TOC references to > the undefined symbols. > > This patch fixes the problem, avoiding registration for symbols that are > not present in the varpool. > > Regstrapped on x86_64-linux-gnu and i686-linux-gnu; I've also verified > that it removes the TOC references on a ppc64-linux-gnu cross. > > Ok to install?
Hmm, I think that at this point of the compilation you are looking for TREE_ASM_WRITTEN instead. I'm not sure we will never end up having a symtab node that not ends up being emitted. Honza? Thanks, Richard. > > > > -- > Alexandre Oliva, freedom fighter http://FSFLA.org/~lxoliva/ > You must be the change you wish to see in the world. -- Gandhi > Be Free! -- http://FSFLA.org/ FSF Latin America board member > Free Software Evangelist Red Hat Brazil Compiler Engineer >
