[llvm-bugs] [Bug 38703] New: offload link error Undefined reference

via llvm-bugs llvm-bugs at lists.llvm.org
Sat Aug 25 10:59:53 PDT 2018 

https://bugs.llvm.org/show_bug.cgi?id=38703

            Bug ID: 38703
           Summary: offload link error Undefined reference
           Product: OpenMP
           Version: unspecified
          Hardware: PC
                OS: Linux
            Status: NEW
          Severity: normal
          Priority: P
         Component: Clang Compiler Support
          Assignee: unassignedclangbugs at nondot.org
          Reporter: xw111luoye at gmail.com
                CC: llvm-bugs at lists.llvm.org

When compiling miniQMC offload branch with clang+cuda8
https://github.com/QMCPACK/miniqmc/tree/OMP_offload
mkdir build_clang_offload; cd build_clang_offload
cmake -DCMAKE_CXX_COMPILER="clang++" -DQMC_MPI=0 -DENABLE_OFFLOAD=1 ..
make

I got the following error. The strange thing is the other binary miniqmc is
built without problem. It includes the same part of code as check_spo.

$ /sandbox/opt/llvm-clang/clang-offload/bin/clang++ -v
--gcc-toolchain=/soft/apps/packages/gcc/gcc-6.2.0 -fopenmp
-fopenmp-targets=nvptx64-nvidia-cuda -fomit-frame-pointer -fstrict-aliasing
-D__forceinline=inline -Wno-deprecated -Wno-unused-value
-Wno-undefined-var-template -O3 -DNDEBUG -ffast-math  
CMakeFiles/check_spo.dir/check_spo.cpp.o  -o ../../bin/check_spo
../../lib/libminiwfs.a ../../lib/libqmcbase.a ../../lib/libqmcutil.a
/usr/lib/liblapack.so /usr/lib/libf77blas.so /usr/lib/libatlas.so 
clang version 8.0.0 (https://github.com/llvm-mirror/clang.git
1bdec838c54117d9befe6dfcd3336a0ba5de9e0d)
(https://github.com/llvm-mirror/llvm.git
7b5db9830a20edbd0ff0e71e91acb654684f4003)
Target: x86_64-unknown-linux-gnu
Thread model: posix
InstalledDir: /sandbox/opt/llvm-clang/clang-offload/bin
Found candidate GCC installation:
/soft/apps/packages/gcc/gcc-6.2.0/lib/gcc/x86_64-pc-linux-gnu/6.2.0
Selected GCC installation:
/soft/apps/packages/gcc/gcc-6.2.0/lib/gcc/x86_64-pc-linux-gnu/6.2.0
Candidate multilib: .;@m64
Candidate multilib: 32;@m32
Selected multilib: .;@m64
Found CUDA installation: /usr/local/cuda-8.0, version 8.0
 "/sandbox/opt/llvm-clang/clang-offload/bin/clang-offload-bundler" -type=o
-targets=host-x86_64-unknown-linux-gnu,openmp-nvptx64-nvidia-cuda
-inputs=CMakeFiles/check_spo.dir/check_spo.cpp.o
-outputs=/tmp/check_spo-f173d6.o,/tmp/check_spo-9d05af.cubin -unbundle
 "/sandbox/opt/llvm-clang/clang-offload/bin/clang-offload-bundler" -type=o
-targets=host-x86_64-unknown-linux-gnu,openmp-nvptx64-nvidia-cuda
-inputs=../../lib/libminiwfs.a
-outputs=/tmp/libminiwfs-91a43f.o,/tmp/libminiwfs-499503.cubin -unbundle
 "/sandbox/opt/llvm-clang/clang-offload/bin/clang-offload-bundler" -type=o
-targets=host-x86_64-unknown-linux-gnu,openmp-nvptx64-nvidia-cuda
-inputs=../../lib/libqmcbase.a
-outputs=/tmp/libqmcbase-2f9488.o,/tmp/libqmcbase-479ba6.cubin -unbundle
 "/sandbox/opt/llvm-clang/clang-offload/bin/clang-offload-bundler" -type=o
-targets=host-x86_64-unknown-linux-gnu,openmp-nvptx64-nvidia-cuda
-inputs=../../lib/libqmcutil.a
-outputs=/tmp/libqmcutil-23428e.o,/tmp/libqmcutil-11fb62.cubin -unbundle
 "/sandbox/opt/llvm-clang/clang-offload/bin/clang-offload-bundler" -type=o
-targets=host-x86_64-unknown-linux-gnu,openmp-nvptx64-nvidia-cuda
-inputs=/usr/lib/liblapack.so
-outputs=/tmp/liblapack-bac4fc.o,/tmp/liblapack-71b054.cubin -unbundle
 "/sandbox/opt/llvm-clang/clang-offload/bin/clang-offload-bundler" -type=o
-targets=host-x86_64-unknown-linux-gnu,openmp-nvptx64-nvidia-cuda
-inputs=/usr/lib/libf77blas.so
-outputs=/tmp/libf77blas-8ab156.o,/tmp/libf77blas-879c92.cubin -unbundle
 "/sandbox/opt/llvm-clang/clang-offload/bin/clang-offload-bundler" -type=o
-targets=host-x86_64-unknown-linux-gnu,openmp-nvptx64-nvidia-cuda
-inputs=/usr/lib/libatlas.so
-outputs=/tmp/libatlas-aa3969.o,/tmp/libatlas-c13852.cubin -unbundle
 "/usr/local/cuda-8.0/bin/nvlink" -o /tmp/check_spo-4c4fc9.out -v -arch sm_61
-L/sandbox/opt/llvm-clang/clang-offload/lib -L/usr/lib/x86_64-linux-gnu
-L/sandbox/opt/llvm-clang/clang-offload/lib -lomptarget-nvptx
/tmp/check_spo-9d05af.cubin /tmp/libminiwfs-499503.cubin
/tmp/libqmcbase-479ba6.cubin /tmp/libqmcutil-11fb62.cubin
/tmp/liblapack-71b054.cubin /tmp/libf77blas-879c92.cubin
/tmp/libatlas-c13852.cubin
nvlink error   : Undefined reference to 'modf' in '/tmp/check_spo-9d05af.cubin'
nvlink error   : Undefined reference to '_ZSt3minIiERKT_S2_S2_' in
'/tmp/check_spo-9d05af.cubin'
nvlink error   : Undefined reference to '_ZSt3maxIiERKT_S2_S2_' in
'/tmp/check_spo-9d05af.cubin'
nvlink error   : Undefined reference to
'_ZN11qmcplusplus16MultiBsplineDataIdE3A44E' in '/tmp/check_spo-9d05af.cubin'
nvlink error   : Undefined reference to
'_ZN11qmcplusplus16MultiBsplineDataIdE4dA44E' in '/tmp/check_spo-9d05af.cubin'
nvlink error   : Undefined reference to
'_ZN11qmcplusplus16MultiBsplineDataIdE5d2A44E' in '/tmp/check_spo-9d05af.cubin'
nvlink info    : 703726375 bytes gmem
nvlink info    : Function properties for
'__omp_offloading_805_19e0a96__ZN11qmcplusplus13einspline_spoIdEC1ERKS1_ii_l114':
nvlink info    : used 254 registers, 544 stack, 1092 bytes smem, 344 bytes
cmem[0], 0 bytes lmem
nvlink info    : Function properties for
'__omp_offloading_805_19e0a96__ZN11qmcplusplus13einspline_spoIdE18multi_evaluate_vghERKSt6vectorIPNS_6SPOSetESaIS4_EERKS2_INS_10TinyVectorIdLj3EEESaISA_EE_l388':
nvlink info    : used 254 registers, 568 stack, 1092 bytes smem, 384 bytes
cmem[0], 0 bytes lmem
nvlink info    : Function properties for
'__omp_offloading_805_19e0a96__ZN11qmcplusplus13einspline_spoIdE12evaluate_vghERKNS_10TinyVectorIdLj3EEE_l285':
nvlink info    : used 254 registers, 560 stack, 1092 bytes smem, 376 bytes
cmem[0], 0 bytes lmem
nvlink info    : Function properties for
'__omp_offloading_805_19e0a96__ZN11qmcplusplus13einspline_spoIdE3setEiiiiib_l185':
nvlink info    : used 254 registers, 544 stack, 1092 bytes smem, 352 bytes
cmem[0], 0 bytes lmem
nvlink info    : Function properties for
'__omp_offloading_805_19e0a96__ZN11qmcplusplus13einspline_spoIdE18multi_evaluate_vghERKSt6vectorIPNS_6SPOSetESaIS4_EERKS2_INS_10TinyVectorIdLj3EEESaISA_EE_l364':
nvlink info    : used 254 registers, 544 stack, 1092 bytes smem, 376 bytes
cmem[0], 0 bytes lmem
nvlink info    : Function properties for
'__omp_offloading_805_19e0a96__ZN11qmcplusplus13einspline_spoIdE12evaluate_vghERKNS_10TinyVectorIdLj3EEE_l267':
nvlink info    : used 254 registers, 544 stack, 1092 bytes smem, 376 bytes
cmem[0], 0 bytes lmem
 "/usr/lib/binutils-2.26/bin/ld" -z relro --hash-style=gnu --eh-frame-hdr -m
elf_x86_64 -dynamic-linker /lib64/ld-linux-x86-64.so.2 -o ../../bin/check_spo
/usr/lib/x86_64-linux-gnu/crt1.o /usr/lib/x86_64-linux-gnu/crti.o
/soft/apps/packages/gcc/gcc-6.2.0/lib/gcc/x86_64-pc-linux-gnu/6.2.0/crtbegin.o
/soft/apps/packages/gcc/gcc-6.2.0/lib/gcc/x86_64-pc-linux-gnu/6.2.0/crtfastmath.o
-L/soft/apps/packages/gcc/gcc-6.2.0/lib/gcc/x86_64-pc-linux-gnu/6.2.0
-L/soft/apps/packages/gcc/gcc-6.2.0/lib/gcc/x86_64-pc-linux-gnu/6.2.0/../../../../lib64
-L/lib/x86_64-linux-gnu -L/lib/../lib64 -L/usr/lib/x86_64-linux-gnu
-L/soft/apps/packages/gcc/gcc-6.2.0/lib/gcc/x86_64-pc-linux-gnu/6.2.0/../../..
-L/sandbox/opt/llvm-clang/clang-offload/bin/../lib -L/lib -L/usr/lib
/tmp/check_spo-f173d6.o /tmp/libminiwfs-91a43f.o /tmp/libqmcbase-2f9488.o
/tmp/libqmcutil-23428e.o /tmp/liblapack-bac4fc.o /tmp/libf77blas-8ab156.o
/tmp/libatlas-aa3969.o -L/sandbox/opt/llvm-clang/clang-offload/lib
-L/usr/lib/x86_64-linux-gnu -lstdc++ -lm -lomp -lomptarget -lgcc_s -lgcc
-lpthread -lc -lgcc_s -lgcc
/soft/apps/packages/gcc/gcc-6.2.0/lib/gcc/x86_64-pc-linux-gnu/6.2.0/crtend.o
/usr/lib/x86_64-linux-gnu/crtn.o -T /tmp/check_spo-343f59.lk
clang-8: error: nvlink command failed with exit code 255 (use -v to see
invocation)

-- 
You are receiving this mail because:
You are on the CC list for the bug.
-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://lists.llvm.org/pipermail/llvm-bugs/attachments/20180825/88734f08/attachment-0001.html>

More information about the llvm-bugs mailing list