On Saturday, 26 August 2017 at 21:59:10 UTC, Thomas Mader wrote:
Hello,
I am building ldc on Nix (https://nixos.org/nix/) but keep
getting an error while running the cppa.d test from the dmd
testsuite (https://github.com/ldc-developers/dmd-testsuite).
1588: ... runnable/cppa.d -L-lstdc++ (-g) -O
1588: Test failed. The logged output:
1588: /tmp/nix-build-ldc-1.3.0.drv-0/build/bin/ldmd2 -conf=
-m64 -Irunnable -L-lstdc++
-od/tmp/nix-build-ldc-1.3.0.drv-0/build/dmd-testsuite/runnable
-of/tmp/nix-build-ldc-1.3.0.drv-0/build/dmd-testsuite/runnable/cppa_0 runnable/cppa.d /tmp/nix-build-ldc-1.3.0.drv-0/build/dmd-testsuite/runnable/cppb.cpp.o
1588:
/tmp/nix-build-ldc-1.3.0.drv-0/build/dmd-testsuite/runnable/cppa_0.o: In function `_Dmain':
1588: runnable/cppa.d:(.text._Dmain[_Dmain]+0x49f): undefined
reference to `int foo15372<int>(int)'
1588: runnable/cppa.d:(.text._Dmain[_Dmain]+0x4b2): undefined
reference to `Foo15802<int>::boo(int)'
1588:
/tmp/nix-build-ldc-1.3.0.drv-0/build/dmd-testsuite/runnable/cppa_0.o:(.data.rel.ro._D4cppa6C131616__vtblZ[_D4cppa6C131616__vtblZ]+0x0): undefined reference to `C13161::dummyfunc()'
1588:
/tmp/nix-build-ldc-1.3.0.drv-0/build/dmd-testsuite/runnable/cppa_0.o:(.data.rel.ro._D4cppa4Test6__vtblZ[_D4cppa4Test6__vtblZ]+0x0): undefined reference to `C13161::dummyfunc()'
1588:
/tmp/nix-build-ldc-1.3.0.drv-0/build/dmd-testsuite/runnable/cppa_0.o:(.data.rel.ro._D4cppa7C13161a6__vtblZ[_D4cppa7C13161a6__vtblZ]+0x0): undefined reference to `C13161a::dummyfunc()'
1588:
/tmp/nix-build-ldc-1.3.0.drv-0/build/dmd-testsuite/runnable/cppa_0.o:(.data.rel.ro._D4cppa5Testa6__vtblZ[_D4cppa5Testa6__vtblZ]+0x0): undefined reference to `C13161a::dummyfunc()'
1588: collect2: error: ld returned 1 exit status
1588: Error:
/nix/store/df84hkmhrhx1c2zpvrhmk6aprhlzkasx-gcc-wrapper-6.4.0/bin/gcc failed with status: 1
1588:
1588:
1588: ==============================
1588: Test failed: expected rc == 0, exited with rc == 1
1588:
1588: make[2]: *** [Makefile:335:
/tmp/nix-build-ldc-1.3.0.drv-0/build/dmd-testsuite/runnable/cppa.d.out] Error 1
Apart from that all other tests pass.
Any ideas?
It's running on Linux with gcc 6.4.0.
That module tests linking with C++ files, looks like you have
some symbols that don't match up. That's weird, because those
normally work with gcc. For each of them, use the readelf
command from binutils to compare the symbols generated and see
how they differ. For example,
readelf -sW
/tmp/nix-build-ldc-1.3.0.drv-0/build/dmd-testsuite/runnable/cppb.cpp.o |grep foo15372
Then run the same command on the D side, ie for cppa_0.o, and
compare the symbols.
File a bug on the ldc github if you can't figure it out:
https://github.com/ldc-developers/ldc/issues
