> -----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/libstdc++- > 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/libstdc++- > 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/libstdc++- > 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/.libs - > 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/libstdc > > ++-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/libstdc++- > 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. > > Ian
