http://gcc.gnu.org/bugzilla/show_bug.cgi?id=45375
--- Comment #146 from Markus Trippelsdorf <markus at trippelsdorf dot de> 2012-12-02 07:36:02 UTC --- (In reply to comment #145) > > > > http://gcc.gnu.org/bugzilla/show_bug.cgi?id=45375 > > > > --- Comment #144 from Markus Trippelsdorf <markus at trippelsdorf dot de> > > 2012-12-01 12:39:30 UTC --- > > It looks like there is a LTO code-size regression on trunk: > > (size of libxul.so, build without elfhack): > > > > gcc lto/pgo : size: 42204584 | Kraken bench: 2723.9ms +/- 0.9% > > About LTO+PGO please be sure that you have the Teresa's fix from this Friday > in > your tree. Yes, my tree already included this fix and also the fix from bug 55551. > > gcc : size: 34072808 | Kraken bench: 2804.3ms +/- 1.6% > > Is LTO w/o PGO bigger than previous builds? Couldn't tell, because it doesn't link: /usr/lib/gcc/x86_64-pc-linux-gnu/4.8.0/../../../../x86_64-pc-linux-gnu/bin/ld: warning: hidden symbol 'pixman_add_triangles' in /var/tmp/moz-build-dir/toolkit/library/../../gfx/cairo/libpixman/src/pixman-trap.o is referenced by DSO /usr/lib64/libcairo.so /usr/lib/gcc/x86_64-pc-linux-gnu/4.8.0/../../../../x86_64-pc-linux-gnu/bin/ld: error: /tmp/cc0oq4BG.ltrans1.ltrans.o: requires dynamic R_X86_64_PC32 reloc against '_ZN12SkAnnotationC1ER23SkFlattenableReadBuffer' which may overflow at runtime; recompile with -fPIC /tmp/cc0oq4BG.ltrans0.ltrans.o:cc0oq4BG.ltrans0.o:function SharedStub: error: undefined reference to 'PrepareAndDispatch' /tmp/cc0oq4BG.ltrans1.ltrans.o:cc0oq4BG.ltrans1.o:function SkAnnotation::CreateProc(SkFlattenableReadBuffer&) [clone .local.7828.1055099]: error: undefined reference to 'SkAnnotation::SkAnnotation(SkFlattenableReadBuffer&)' collect2: error: ld returned 1 exit status The undefined reference to PrepareAndDispatch is easily fixed by an __attribute__ ((used)). Do you have an idea on how to fix the SkAnnotation::SkAnnotation(SkFlattenableReadBuffer&) issue?
