Date: Thu, 28 Aug 2008 18:12:37 +0100 From: Anton Shterenlikht <mexas@bristol.ac.uk> To: Dieter <freebsd@sopwith.solgatos.com> Cc: freebsd-alpha@freebsd.org, freebsd-amd64@freebsd.org Subject: Re: firefox3 from ports? Message-ID: <20080828171237.GA71953@mech-cluster238.men.bris.ac.uk> In-Reply-To: <200808281641.QAA00630@sopwith.solgatos.com> References: <g96d5t$2ajo$1@lorvorc.mips.inka.de> <200808281641.QAA00630@sopwith.solgatos.com>
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On Thu, Aug 28, 2008 at 09:41:46AM +0100, Dieter wrote:
> [ -alpha@ added ]
>=20
> > > From what I gather the problems could show up on other
> > > 64-bit platforms.
>=20
> Alignment requirements vary with CPU arch, but is not a 32 vs 64 bit issu=
e.
>=20
> > > warning: cast from ... to ... increases
> > > required alignment of target type
> >=20
> > No such warnings on amd64. I think they only show up on architectures
> > that require strict alignment, and amd64 doesn't.
>=20
> > FWIW, building firefox on OpenBSD/alpha and /sparc64 produces lots
> > of these warnings, but after all the pointer casting games are done,
> > the actual accesses still come out properly aligned and firefox
> > runs.
>=20
> Very interesting. Are you saying that the compiler warnings are wrong?
> Are you saying that a 2nd cast is done before the actual access which
> undoes the increase in alignment? Do you know for certain that the code
> in question is getting executed? Given the large amount of code in
> firefox, and the large number of features, I can imagine that lots of
> code only gets executed under rare occasions.
>=20
> > > What is the easiest way to build this port with gcc42?
>=20
> Try setting your PATH so that gcc42 is first. Verify by running
> "gcc -v".
I added this to /etc/make.conf:
# Build ports/www/firefox3 with the latest gcc
=2Eif ${.CURDIR:M*/www/firefox3*}
USE_GCC=3D4.2+
=2Eendif
this seems to work, however the error and the warnings are very
similar if not identical.
Then I disabled
#CXXFLAGS +=3D $(WARNINGS_AS_ERRORS)
in a Makefile in a particular directory which gave me the error.
I did this reluctantly, following the advice from firefox
developer:
--- Comment #12 from Benjamin Smedberg [:bs] (bsmedberg)
<benjamin@smedbergs.us> 2008-08-28 +06:45:09 PDT ---
These are warnings. They are *probably* harmless. To turn off
warnings-as-errors for this directory, do:
make WARNINGS_AS_ERRORS=3D
=66rom https://bugzilla.mozilla.org/show_bug.cgi?id=3D449373
after that the compilation went ahead with many many alignment warnings.
>=20
> Are the alignment warnings the only remaining compiler warnings?
there might have been other, but the alignment was a clear champion.
Now I get error on linking:
gmake[3]: Entering directory `/usr/ports/www/firefox3/work/mozilla/toolkit/=
library'
rm -f libxul.so
g++42 -I/usr/local/include -I/usr/local/include -fno-rtti -fno-exceptions =
-Wall -Wconversion -Wpointer-arith -Woverloaded-virtual -Wsynth -Wno-ctor-d=
tor-privacy -Wno-non-virtual-dtor -Wcast-align -Wno-long-long -O -pipe -mcp=
u=3Dev6 -mieee -O2 -fno-strict-aliasing -fno-strict-aliasing -fshort-wchar =
-pipe -DNDEBUG -DTRIMMED -O -fPIC -shared -Wl,-z,defs -Wl,-h,libxul.so -o =
libxul.so nsStaticXULComponents.o nsUnicharUtils.o nsCompressedCharMap.o n=
sBidiUtils.o nsRDFResource.o -pthread -Wl,-rpath-link,../../dist/=
bin -Wl,--whole-archive ../../embedding/browser/gtk/src/libgtkembedmoz.a .=
=2E/../toolkit/xre/libxulapp_s.a ../../staticlib/components/libxpconnect.a=
../../staticlib/components/libnecko.a ../../staticlib/components/libuconv.=
a ../../staticlib/components/libi18n.a ../../staticlib/components/libcharde=
t.a ../../staticlib/components/libjar50.a ../../staticlib/components/libpre=
f.a ../../staticlib/components/libcaps.a ../../staticlib/components/libhtml=
pars.a ../../staticlib/components/libimglib2.a ../../staticlib/components/l=
ibgklayout.a ../../staticlib/components/libdocshell.a ../../staticlib/compo=
nents/libembedcomponents.a ../../staticlib/components/libwebbrwsr.a ../../s=
taticlib/components/libnsappshell.a ../../staticlib/components/libtxmgr.a .=
=2E/../staticlib/components/libchrome.a ../../staticlib/components/libcomma=
ndlines.a ../../staticlib/components/libtoolkitcomps.a ../../staticlib/comp=
onents/libpipboot.a ../../staticlib/components/libpipnss.a ../../staticlib/=
components/libxmlextras.a ../../staticlib/components/libgkplugin.a ../../st=
aticlib/components/libmozfind.a ../../staticlib/components/libappcomps.a ..=
/../staticlib/components/libunixproxy.a ../../staticlib/components/libxpins=
tall.a ../../staticlib/components/libjsd.a ../../staticlib/components/libau=
toconfig.a ../../staticlib/components/libauth.a ../../staticlib/components/=
libcookie.a ../../staticlib/components/libpermissions.a ../../staticlib/com=
ponents/libuniversalchardet.a ../../staticlib/components/libcomposer.a ../.=
=2E/staticlib/components/librdf.a ../../staticlib/components/libwindowds.a =
=2E./../staticlib/components/libintlapp.a ../../staticlib/components/libfil=
eview.a ../../staticlib/components/libstoragecomps.a ../../staticlib/compon=
ents/libplaces.a ../../staticlib/components/libtkautocomplete.a ../../stati=
clib/components/libsatchel.a ../../staticlib/components/libpippki.a ../../s=
taticlib/components/libucvmath.a ../../staticlib/components/libwidget_gtk2.=
a ../../staticlib/components/libsystem-pref.a ../../staticlib/components/li=
bgkgfxthebes.a ../../staticlib/components/liboji.a ../../staticlib/componen=
ts/libaccessibility.a ../../staticlib/components/libremoteservice.a ../../s=
taticlib/components/libspellchecker.a ../../staticlib/components/libzipwrit=
er.a ../../staticlib/libxpcom_core.a ../../staticlib/libucvutil_s.a ../../s=
taticlib/libgkgfx.a ../../staticlib/libgfxshared_s.a ../../staticlib/libmoz=
reg_s.a ../../staticlib/libmorkreader_s.a ../../staticlib/libgtkxtbin.a ../=
=2E./staticlib/libgfxpsshar.a ../../staticlib/libthebes.a ../../staticlib/l=
ibjsj.a -Wl,--no-whole-archive -L../../dist/lib -lsqlite3 -Wl,-Bsymbolic -=
lc -L../../dist/bin -L../../dist/lib -L../../dist/bin -L../../dist/lib -L.=
=2E/../jpeg -lmozjpeg -L../../modules/libimg/png -lmozpng -L../../dist/bin =
-lmozlcms -L../../dist/bin -lmozjs -L../../dist/bin -L../../dist/lib -lcrmf=
-lsmime3 -lssl3 -lnss3 -lnssutil3 -lsoftokn3 -L/usr/lib -lz -pthread -L/=
usr/local/lib -lpangocairo-1.0 -lcairo -lpangoft2-1.0 -lpango-1.0 -lm -lfre=
etype -lz -lfontconfig -lgobject-2.0 -lgmodule-2.0 -lglib-2.0 -liconv -pt=
hread -L/usr/local/lib -lcairo -lfreetype -lz -lfontconfig -L/usr/local/=
lib -pthread -L/usr/local/lib -lXrender -lcairo -lX11 -L/usr/local/lib -l=
plds4 -lplc4 -lnspr4 -pthread -L/usr/local/lib -lX11 -L/usr/local/lib -lXf=
t -lXrender -lfontconfig -lfreetype -lz -lX11 -pthread -L/usr/local/lib -=
lgtk-x11-2.0 -latk-1.0 -lgdk-x11-2.0 -lgdk_pixbuf-2.0 -lpangocairo-1.0 -lXe=
xt -lXrender -lXinerama -lXi -lXrandr -lXcursor -lXcomposite -lXdamage -lca=
iro -lpangoft2-1.0 -lpango-1.0 -lm -lfreetype -lz -lfontconfig -lgmodule-2.=
0 -lX11 -lXfixes -lgobject-2.0 -lglib-2.0 -liconv -lXt -lgthread-2.0 -L/u=
sr/local/lib -lfreetype -lz -lm -pthread -pthread -L/usr/local/lib -liconv =
=20
=2E./../staticlib/components/libxpconnect.a(xpcwrappednative.o)(.text+0x303=
c): In function `XPCWrappedNative::CallMethod(XPCCallContext&, XPCWrappedNa=
tive::CallMode)':
: undefined reference to `NS_InvokeByIndex_P'
=2E./../staticlib/components/libxpconnect.a(xpcwrappednative.o)(.text+0x307=
c): In function `XPCWrappedNative::CallMethod(XPCCallContext&, XPCWrappedNa=
tive::CallMode)':
: undefined reference to `NS_InvokeByIndex_P'
=2E./../staticlib/components/libgklayout.a(txXPCOMExtensionFunction.o)(.tex=
t+0xc1c): In function `txXPCOMExtensionFunctionCall::evaluate(txIEvalContex=
t*, txAExprResult**)':
: undefined reference to `NS_InvokeByIndex_P'
=2E./../staticlib/components/libgklayout.a(nsXTFInterfaceAggregator.o)(.tex=
t+0x2cc): In function `nsXTFInterfaceAggregator::CallMethod(unsigned short,=
XPTMethodDescriptor const*, nsXPTCMiniVariant*)':
: undefined reference to `NS_InvokeByIndex_P'
=2E./../staticlib/components/libgklayout.a(nsXTFWeakTearoff.o)(.text+0x208)=
: In function `nsXTFWeakTearoff::CallMethod(unsigned short, XPTMethodDescri=
ptor const*, nsXPTCMiniVariant*)':
: undefined reference to `NS_InvokeByIndex_P'
=2E./../staticlib/libxpcom_core.a(nsProxyEvent.o)(.text+0x944): more undefi=
ned references to `NS_InvokeByIndex_P' follow
=2E./../staticlib/libxpcom_core.a(xptcinvoke_freebsd_alpha.o)(.text+0x44): =
In function `XPTC_InvokeByIndex':
: undefined reference to `$invoke_copy_to_stack..ng'
=2E./../staticlib/libxpcom_core.a(xptcstubs_freebsd_alpha.o)(.text+0x40): I=
n function `SharedStub':
: undefined reference to `$PrepareAndDispatch..ng'
collect2: ld returned 1 exit status
gmake[3]: *** [libxul.so] Error 1
gmake[3]: Leaving directory `/usr/ports/www/firefox3/work/mozilla/toolkit/l=
ibrary'
The final 4 lines refer to 2 xptc* files, which I copied from
FF2 distro and modified myself, so that probably means I have
to review these 2 files.
thanks
--=20
Anton Shterenlikht
Room 2.6, Queen's Building
Mech Eng Dept
Bristol University
University Walk, Bristol BS8 1TR, UK
Tel: +44 (0)117 928 8233=20
Fax: +44 (0)117 929 4423
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