[Bug lto/45375] [meta-bug] Issues with building Mozilla with LTO

[hubicka at gcc dot gnu.org]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=45375

--- Comment #28 from Jan Hubicka <hubicka at gcc dot gnu.org> 2011-01-10 01:29:19 UTC ---
With fixes for PR47234 and PR47233 I can build -fprofile-generate libxul.
Didn't tried yet if the porfile apply, since build later dies at:
/abuild/jh/trunk-install/bin/g++ -fpermissive -O3 -flto=24 -fuse-linker-plugin
-fprofile-generate  -fno-rtti -fno-exceptions -Wall -Wpointer-arith
-Woverloaded-virtual -Wsynth -Wno-ctor-dtor-privacy -Wno-non-virtual-dtor
-Wcast-align -Wno-invalid-offsetof -Wno-variadic-macros -Werror=return-type
-pedantic -Wno-long-long -fno-strict-aliasing -fshort-wchar -pthread -pipe 
-DNDEBUG -DTRIMMED -g   -I/usr/include/glib-2.0 -I/usr/lib64/glib-2.0/include  
-I/usr/include/gtk-2.0 -I/usr/include/glib-2.0 -I/usr/lib64/glib-2.0/include
-I/usr/include/dbus-1.0 -I/usr/lib64/dbus-1.0/include
-I/usr/lib64/gtk-2.0/include -I/usr/include/atk-1.0 -I/usr/include/cairo
-I/usr/include/pango-1.0 -I/usr/include/pixman-1 -I/usr/include/freetype2
-I/usr/include/libpng12   -I/usr/include/gtk-2.0 -I/usr/lib64/gtk-2.0/include
-I/usr/include/atk-1.0 -I/usr/include/cairo -I/usr/include/pango-1.0
-I/usr/include/glib-2.0 -I/usr/lib64/glib-2.0/include -I/usr/include/pixman-1
-I/usr/include/freetype2 -I/usr/include/libpng12
-I/usr/include/gtk-unix-print-2.0    -fPIC -shared -Wl,-z,defs
-Wl,-h,libmozgnome.so -o libmozgnome.so  nsGnomeModule.o nsAlertsService.o
nsAlertsIconListener.o     -lpthread   
-Wl,-rpath-link,/abuild/jh/build-mozilla-new8-prof/dist/bin
-Wl,-rpath-link,/usr/local/lib
/abuild/jh/build-mozilla-new8-prof/dist/lib/libxpcomglue_s.a
-L/abuild/jh/build-mozilla-new8-prof/dist/bin -lxpcom -lmozalloc
-L/abuild/jh/build-mozilla-new8-prof/dist/bin -lxpcom -lmozalloc
-L/abuild/jh/build-mozilla-new8-prof/dist/lib -lplds4 -lplc4 -lnspr4 -lpthread
-ldl   -lgobject-2.0 -lglib-2.0   -L/lib64 -lnotify -lgtk-x11-2.0 -ldbus-glib-1
-lgdk-x11-2.0 -latk-1.0 -lgio-2.0 -lpangoft2-1.0 -lgdk_pixbuf-2.0
-lpangocairo-1.0 -lcairo -lpango-1.0 -lfreetype -lz -lfontconfig -lgmodule-2.0
-ldbus-1 -lgobject-2.0 -lglib-2.0     -Wl,--version-script
-Wl,/abuild/jh/mozilla-central2/mozilla-central/build/unix/gnu-ld-scripts/components-version-script
-Wl,-Bsymbolic -ldl    
/abuild/jh/trunk-install/lib/gcc/x86_64-unknown-linux-gnu/4.6.0/../../../../x86_64-unknown-linux-gnu/bin/ld:
/abuild/jh/tmp//cc0wLUAb.ltrans0.ltrans.o: in function
gfxUnknownSurface::~gfxUnknownSurface():../../../dist/include/gfxASurface.h:247:
error: undefined reference to 'vtable for gfxASurface'
/abuild/jh/trunk-install/lib/gcc/x86_64-unknown-linux-gnu/4.6.0/../../../../x86_64-unknown-linux-gnu/bin/ld:
/abuild/jh/tmp//cc0wLUAb.ltrans0.ltrans.o: in function
gfxUnknownSurface::~gfxUnknownSurface():../../../dist/include/gfxASurface.h:248:
error: undefined reference to 'gfxASurface::RecordMemoryFreed()'
/abuild/jh/trunk-install/lib/gcc/x86_64-unknown-linux-gnu/4.6.0/../../../../x86_64-unknown-linux-gnu/bin/ld:
/abuild/jh/tmp//cc0wLUAb.ltrans0.ltrans.o: in function
gfxUnknownSurface::~gfxUnknownSurface():../../../dist/include/gfxASurface.h:247:
error: undefined reference to 'vtable for gfxASurface'
/abuild/jh/trunk-install/lib/gcc/x86_64-unknown-linux-gnu/4.6.0/../../../../x86_64-unknown-linux-gnu/bin/ld:
/abuild/jh/tmp//cc0wLUAb.ltrans0.ltrans.o: in function
gfxUnknownSurface::~gfxUnknownSurface():../../../dist/include/gfxASurface.h:248:
error: undefined reference to 'gfxASurface::RecordMemoryFreed()'
/abuild/jh/trunk-install/lib/gcc/x86_64-unknown-linux-gnu/4.6.0/../../../../x86_64-unknown-linux-gnu/bin/ld:
/abuild/jh/tmp//cc0wLUAb.ltrans0.ltrans.o: in function
gfxASurface::~gfxASurface():../../../dist/include/gfxASurface.h:247: error:
undefined reference to 'vtable for gfxASurface'
/abuild/jh/trunk-install/lib/gcc/x86_64-unknown-linux-gnu/4.6.0/../../../../x86_64-unknown-linux-gnu/bin/ld:
/abuild/jh/tmp//cc0wLUAb.ltrans0.ltrans.o: in function
gfxASurface::~gfxASurface():../../../dist/include/gfxASurface.h:248: error:
undefined reference to 'gfxASurface::RecordMemoryFreed()'
/abuild/jh/trunk-install/lib/gcc/x86_64-unknown-linux-gnu/4.6.0/../../../../x86_64-unknown-linux-gnu/bin/ld:
/abuild/jh/tmp//cc0wLUAb.ltrans0.ltrans.o: in function
gfxASurface::~gfxASurface():../../../dist/include/gfxASurface.h:247: error:
undefined reference to 'vtable for gfxASurface'
/abuild/jh/trunk-install/lib/gcc/x86_64-unknown-linux-gnu/4.6.0/../../../../x86_64-unknown-linux-gnu/bin/ld:
/abuild/jh/tmp//cc0wLUAb.ltrans0.ltrans.o: in function
gfxASurface::~gfxASurface():../../../dist/include/gfxASurface.h:248: error:
undefined reference to 'gfxASurface::RecordMemoryFreed()'
/abuild/jh/trunk-install/lib/gcc/x86_64-unknown-linux-gnu/4.6.0/../../../../x86_64-unknown-linux-gnu/bin/ld:
/abuild/jh/tmp//cc0wLUAb.ltrans0.ltrans.o: in function
_ZTV17gfxUnknownSurface.local.39.3126:cc0wLUAb.ltrans0.o(.data.rel.ro+0x10):
error: undefined reference to 'gfxASurface::BeginPrinting(nsAString const&,
nsAString const&)'
/abuild/jh/trunk-install/lib/gcc/x86_64-unknown-linux-gnu/4.6.0/../../../../x86_64-unknown-linux-gnu/bin/ld:
/abuild/jh/tmp//cc0wLUAb.ltrans0.ltrans.o: in function
_ZTV17gfxUnknownSurface.local.39.3126:cc0wLUAb.ltrans0.o(.data.rel.ro+0x18):
error: undefined reference to 'gfxASurface::EndPrinting()'
/abuild/jh/trunk-install/lib/gcc/x86_64-unknown-linux-gnu/4.6.0/../../../../x86_64-unknown-linux-gnu/bin/ld:
/abuild/jh/tmp//cc0wLUAb.ltrans0.ltrans.o: in function
_ZTV17gfxUnknownSurface.local.39.3126:cc0wLUAb.ltrans0.o(.data.rel.ro+0x20):
error: undefined reference to 'gfxASurface::AbortPrinting()'
/abuild/jh/trunk-install/lib/gcc/x86_64-unknown-linux-gnu/4.6.0/../../../../x86_64-unknown-linux-gnu/bin/ld:
/abuild/jh/tmp//cc0wLUAb.ltrans0.ltrans.o: in function
_ZTV17gfxUnknownSurface.local.39.3126:cc0wLUAb.ltrans0.o(.data.rel.ro+0x28):
error: undefined reference to 'gfxASurface::BeginPage()'
/abuild/jh/trunk-install/lib/gcc/x86_64-unknown-linux-gnu/4.6.0/../../../../x86_64-unknown-linux-gnu/bin/ld:
/abuild/jh/tmp//cc0wLUAb.ltrans0.ltrans.o: in function
_ZTV17gfxUnknownSurface.local.39.3126:cc0wLUAb.ltrans0.o(.data.rel.ro+0x30):
error: undefined reference to 'gfxASurface::EndPage()'
/abuild/jh/trunk-install/lib/gcc/x86_64-unknown-linux-gnu/4.6.0/../../../../x86_64-unknown-linux-gnu/bin/ld:
/abuild/jh/tmp//cc0wLUAb.ltrans0.ltrans.o: in function
_ZTV17gfxUnknownSurface.local.39.3126:cc0wLUAb.ltrans0.o(.data.rel.ro+0x38):
error: undefined reference to 'gfxASurface::Finish()'
/abuild/jh/trunk-install/lib/gcc/x86_64-unknown-linux-gnu/4.6.0/../../../../x86_64-unknown-linux-gnu/bin/ld:
/abuild/jh/tmp//cc0wLUAb.ltrans0.ltrans.o: in function
_ZTV17gfxUnknownSurface.local.39.3126:cc0wLUAb.ltrans0.o(.data.rel.ro+0x40):
error: undefined reference to
'gfxASurface::CreateSimilarSurface(gfxASurface::gfxContentType, gfxIntSize
const&)'

those seems suspicious.  I saw similar problem previously - the vtables are
there but they are not finalized.  The non-LTO objects don't seem to reffer to
them, so perhaps we do too much of folding...
I am bit lost.