> -----Original Message-----
> From: H.J. Lu [mailto:hjl.to...@gmail.com]
> Sent: Friday, July 19, 2013 6:56 PM
> To: Iyer, Balaji V
> Cc: Ian Lance Taylor; gcc@gcc.gnu.org
> Subject: Re: Help with using multilib for Cilk Library
>
> On Fri, Jul 19, 2013 at 3:53 PM, Iyer, Balaji V <balaji.v.i...@intel.com>
> wrote:
> >
> >
> >> -----Original Message-----
> >> From: Ian Lance Taylor [mailto:i...@google.com]
> >> Sent: Friday, July 19, 2013 6:26 PM
> >> To: Iyer, Balaji V
> >> Cc: gcc@gcc.gnu.org
> >> Subject: Re: Help with using multilib for Cilk Library
> >>
> >> On Fri, Jul 19, 2013 at 11:22 AM, Iyer, Balaji V <balaji.v.i...@intel.com>
> wrote:
> >> > Hello Everyone,
> >> > I am trying to use Multilib on Cilk Library. I looked at
> >> > this website
> >> (http://www.airs.com/ian/configure/configure_8.html) and used
> >> libsanitizer and libgo as samples to model after. It is currently
> >> failing with the following error
> >> message:
> >> >
> >> > libtool: link: /export/users/my-files/b-gcc-multilib/./gcc/xg++ -
> >> B/export/users/my-files/b-gcc-multilib/./gcc/ -nostdinc++ -nostdinc++
> >> -
> >> I/export/users/my-files/b-gcc-multilib/x86_64-unknown-linux-gnu/32/li
> >> bstdc++- v3/include/x86_64-unknown-linux-gnu
> >> -I/export/users/my-files/b-gcc-
> >> multilib/x86_64-unknown-linux-gnu/32/libstdc++-v3/include -
> >> I/export/users/my-files/gcc/libstdc++-v3/libsupc++
> >> -I/export/users/my- files/gcc/libstdc++-v3/include/backward
> >> -I/export/users/my-files/gcc/libstdc++-
> >> v3/testsuite/util
> >> -L/export/users/my-files/b-gcc-multilib/x86_64-unknown-linux-
> >> gnu/32/libstdc++-v3/src
> >> -L/export/users/my-files/b-gcc-multilib/x86_64-
> >> unknown-linux-gnu/32/libstdc++-v3/src/.libs
> >> -B/export/users/my-files/install-
> >> gcc-multilib/x86_64-unknown-linux-gnu/bin/
> >> -B/export/users/my-files/install-
> >> gcc-multilib/x86_64-unknown-linux-gnu/lib/ -isystem /export/users/my-
> >> files/install-gcc-multilib/x86_64-unknown-linux-gnu/include -isystem
> >> /export/users/my-files/install-gcc-multilib/x86_64-unknown-linux-gnu/
> >> sys- include -m32 -shared -nostdlib /usr/lib/../lib/crti.o
> >> /export/users/my-files/b- gcc-multilib/./gcc/32/crtbeginS.o
> >> .libs/bug.o .libs/cilk-abi.o .libs/cilk-abi-cilk- for.o
> >> .libs/cilk-abi-vla.o .libs/cilk-abi-vla-internal.o .libs/cilk_api.o
> >> .libs/cilk_fiber.o .libs/cilk_fiber-unix.o .libs/cilk_malloc.o
> >> .libs/c_reducers.o .libs/except-gcc.o .libs/frame_malloc.o
> >> .libs/full_frame.o .libs/global_state.o .libs/jmpbuf.o
> >> .libs/local_state.o .libs/metacall_impl.o .libs/os_mutex-unix.o
> >> .libs/os-unix.o .libs/pedigrees.o .libs/record-replay.o
> >> .libs/reducer_impl.o
> .libs/scheduler.o .libs/signal_node.o .libs/spin_mutex.o .libs/stats.o
> >> .libs/symbol_test.o .libs/sysdep-unix.o .libs/worker_mutex.o -Wl,-rpath -
> >> Wl,/export/users/my-files/b-gcc-multilib/x86_64-unknown-linux-gnu/lib
> >> stdc++- v3/src/.libs -Wl,-rpath
> >> -Wl,/export/users/my-files/install-gcc-multilib/lib/../lib64
> >> -L/export/users/my-files/b-gcc-multilib/x86_64-unknown-linux-gnu/libs
> >> tdc++- v3/src/.libs
> >> -L/export/users/my-files/b-gcc-multilib/x86_64-unknown-linux-
> >> gnu/libstdc++-v3/src -lpthread -ldl -L/export/users/my-files/b-gcc-
> >> multilib/x86_64-unknown-linux-gnu/32/libstdc++-v3/src
> >> -L/export/users/my-
> >> files/b-gcc-multilib/x86_64-unknown-linux-gnu/32/libstdc++-v3/src/.li
> >> bs -
> >> L/export/users/my-files/b-gcc-multilib/./gcc/32 -L/lib/../lib
> >> -L/usr/lib/../lib - L/export/users/my-files/b-gcc-multilib/./gcc
> >> /export/users/my-files/b-gcc-
> >> multilib/x86_64-unknown-linux-gnu/libstdc++-v3/src/.libs/libstdc++.so -lm
> >> -lc
> - lgcc_s /export/users/my-files/b-gcc-multilib/./gcc/32/crtendS.o
> >> /usr/lib/../lib/crtn.o -m32 -m32 -Wl,-soname -Wl,libcilkrts.so.5 -o
> >> .libs/libcilkrts.so.5.0.3511
> >> > /export/users/my-files/b-gcc-multilib/x86_64-unknown-linux-gnu/libs
> >> > tdc
> >> > ++-v3/src/.libs/libstdc++.so: could not read symbols: File in wrong
> >> > format
> >> > collect2: error: ld returned 1 exit status
> >> > make[4]: *** [libcilkrts.la] Error 1
> >> > make[4]: Leaving directory
> >> > `/export/users/my-files/b-gcc-multilib/x86_64-
> >> unknown-linux-gnu/32/libcilkrts'
> >> > make[3]: *** [multi-do] Error 1
> >> > make[3]: Leaving directory `/export/users/my-files/b-gcc
> >> >
> >> >
> >> > From what it looks like, it is reading the 64 bit library for the
> >> > 32 bit mode (or
> >> vice-versa). How do I fix this? I am also attaching my configure.ac
> >> and Makefile.am. Please note that it is not fully cleaned up (e.g. I
> >> have stuff commented out etc). Can someone please tell me what I am doing
> wrong?
> >>
> >> When building the 32bit libcillkrts you are linking against the
> >> 64-bit
> >> libstdc++. It's right there on your command line:
> >> /export/users/my-files/b-gcc-multilib/x86_64-unknown-linux-gnu/libstd
> >> c++-
> >> v3/src/.libs/libstdc++.so.
> >> If that argument is needed at all, it needs to be
> >> /export/users/my-files/b-gcc-
> >> multilib/x86_64-unknown-linux-gnu/32/libstdc++-v3/src/.libs/libstdc++
> >> .so (note added /32 in there). I guess the question is where the
> >> argument is coming from. I must admit that I don't know. Is it in
> >> some environment variable?
> >
> > I am not setting any environment variable that weren't set automatically in
> > my
> SUSE machine. Also, all the other libs are working correctly for 32 and 64
> bit.
> >
>
> If you can create a git branch, others can take a look to see what is going
> on.
> There isn't sufficient info to tell.
Hello H. J. and Ian,
I have posted what I have in bviyer/cilkplus-multilib-test. To build
the compiler, I used the following configure command:
../cilkplus-multilib-test/configure --prefix=<INSTALL_DIR>
Any help is greatly appreciated!
Thanks,
Balaji V. Iyer.
>
> --
> H.J.
