Cause of the C++ problem

[Troy Davis]

Quoting Troy Davis <gpf at dslinux.in-berlin.de>:

> Quoting Amadeus <amadeus at iksw-muees.de>:
>
> > Hello everybody,
> >
> > On Freitag, 20. Juli 2007, Amadeus wrote:
> > > I digged somewhat deeper into the problem
> >
> > ... and finally I fixed it.
> >
> > I have looked at other architectures how they do it, and found another
> > working solution from the blackfin team. It had to be modified for ARM,
> > but it works!
> >
> > So it is possible now to use virtual functions in C++ programs.
> >
> > Every developer need a new toolchain.
> >
> > For reference, I have uploaded my toolchain to
> >
> > http://dslinux.in-berlin.de/dslinux-toolchain-2007-07-22-i686.tbz
> >
> > Kineox, are you listening?
> >
> > regards
> >
> > Amadeus
> > --
> > We're back to the times when men were men
> > and wrote their own device drivers.
> >
> > (Linus Torvalds)
> > --
> > dslinux-devel mailing list
> > dslinux-devel at dslinux.in-berlin.de
> > http://mailman.dslinux.in-berlin.de/mailman/listinfo/dslinux-devel
> >
>
> Awesine work, just downloaded your toolchain, ran make distclean and rebuilt
> everything and rtest work great :)
>
> I tried to port a c++ program that uses my in progress libSDL and zlib, and I
> am
> getting the following error when linking
>
>  -xsh- ~/dslinux/user/REminiscence > make
> make[2]: Entering directory `/home/gpf/dslinux/user/REminiscence'
> ucfront-g++ arm-linux-elf-g++  -Wl,-elf2flt -D__PIC__ -fpic -msingle-pic-base
> -
> swp-byte-writes -o rs collision.o cutscene.o file.o game.o graphics.o main.o
> me
> u.o mixer.o mod_player.o piege.o resource.o scaler.o sfx_player.o staticres.o
> s
> stemstub_sdl.o unpack.o util.o video.o -lSDL -lz -luClibc++
> rs.elf2flt:(.gnu.linkonce.d._ZTI8zlibFile[typeinfo for zlibFile]+0x0):
> undefine
>  reference to `vtable for __cxxabiv1::__si_class_type_info'
> rs.elf2flt:(.gnu.linkonce.d._ZTI9File_impl[typeinfo for File_impl]+0x0):
> undefi
> ed reference to `vtable for __cxxabiv1::__class_type_info'
> rs.elf2flt:(.gnu.linkonce.d._ZTI7stdFile[typeinfo for stdFile]+0x0):
> undefined
> eference to `vtable for __cxxabiv1::__si_class_type_info'
> rs.elf2flt:(.gnu.linkonce.d._ZTI14SystemStub_SDL[typeinfo for
> SystemStub_SDL]+0
> 0): undefined reference to `vtable for __cxxabiv1::__si_class_type_info'
> rs.elf2flt:(.gnu.linkonce.d._ZTI10SystemStub[typeinfo for SystemStub]+0x0):
> und
> fined reference to `vtable for __cxxabiv1::__class_type_info'
> collect2: ld returned 1 exit status
> make[2]: *** [rs] Error 1
> make[2]: Leaving directory `/home/gpf/dslinux/user/REminiscence'
>
> Any ideas?
>
> Thanks,
> Troy(GPF)
> --
> dslinux-devel mailing list
> dslinux-devel at dslinux.in-berlin.de
> http://mailman.dslinux.in-berlin.de/mailman/listinfo/dslinux-devel
>


I added -lsupc++ to link line and now it compiles and links successfully.

Troy(GPF)