[llvm-dev] building llvm_Rel400 on Scientific Linux (RHEL) 7.3 x86_64

[Adam Jensen via llvm-dev]

On Sat, 3 Jun 2017 17:14:09 -0700
Tim Northover <t.p.northover at gmail.com> wrote:

> On 3 June 2017 at 17:12, Adam Jensen <hanzer at riseup.net> wrote:
> > Thanks, Tim. I don't see "-lrt":
> 
> Ah sorry, I was looking at trunk and the code must have changed a bit.
> Just put it after the "-lclang_rt.xray-fdr-${arch}". At the end of
> that call.


Same result. With this change:

$BASE/llvm_Rel400/projects/compiler-rt/lib/xray/tests/CMakeLists.txt

 43       if(NOT APPLE)
 44         add_compiler_rt_test(XRayUnitTests ${testname}
 45           OBJECTS ${TEST_OBJECTS}
 46           DEPS ${TEST_DEPS}
 47           LINK_FLAGS ${TARGET_LINK_FLAGS}
 48           -lm ${CMAKE_THREAD_LIBS_INIT}
 49           -lpthread
 50           -L${COMPILER_RT_LIBRARY_OUTPUT_DIR} -lclang_rt.xray-fdr-${arch} -lstdc++)
 51       endif()

check-all fails with:

[115/475] Generating gtest-all.cc.x86_64.o
[116/475] cd /home/hanzer/build/build_llvm/projects/compiler-rt/lib/xray/tests/unit && /home/hanzer/build/build_llvm/./bin/clang buffer_queue_test.cc.x86_64.o xray_unit_test_main.cc.x86_64.o gtest-all.cc.x86_64.o -o /home/hanzer/build/build_llvm/projects/compiler-rt/lib/xray/tests/unit/XRayBufferQueueTest -Wl,-allow-shlib-undefined -m64 -lm -lpthread -lpthread -L/home/hanzer/build/build_llvm/./lib/clang/4.0.0/lib/linux -lclang_rt.xray-fdr-x86_64 -lstdc++
FAILED: projects/compiler-rt/lib/xray/tests/unit/CMakeFiles/XRayBufferQueueTest 
cd /home/hanzer/build/build_llvm/projects/compiler-rt/lib/xray/tests/unit && /home/hanzer/build/build_llvm/./bin/clang buffer_queue_test.cc.x86_64.o xray_unit_test_main.cc.x86_64.o gtest-all.cc.x86_64.o -o /home/hanzer/build/build_llvm/projects/compiler-rt/lib/xray/tests/unit/XRayBufferQueueTest -Wl,-allow-shlib-undefined -m64 -lm -lpthread -lpthread -L/home/hanzer/build/build_llvm/./lib/clang/4.0.0/lib/linux -lclang_rt.xray-fdr-x86_64 -lstdc++
/home/hanzer/build/build_llvm/./lib/clang/4.0.0/lib/linux/libclang_rt.xray-fdr-x86_64.a(xray_buffer_queue.cc.o): In function `std::make_error_code(std::errc)':
/opt/rh/devtoolset-6/root/usr/include/c++/6.2.1/system_error:197: undefined reference to `std::_V2::generic_category()'
/home/hanzer/build/build_llvm/./lib/clang/4.0.0/lib/linux/libclang_rt.xray-fdr-x86_64.a(xray_buffer_queue.cc.o): In function `std::error_code::error_code()':
/opt/rh/devtoolset-6/root/usr/include/c++/6.2.1/system_error:141: undefined reference to `std::_V2::system_category()'
/home/hanzer/build/build_llvm/./lib/clang/4.0.0/lib/linux/libclang_rt.xray-fdr-x86_64.a(xray_buffer_queue.cc.o): In function `std::make_error_code(std::errc)':
/opt/rh/devtoolset-6/root/usr/include/c++/6.2.1/system_error:197: undefined reference to `std::_V2::generic_category()'
/home/hanzer/build/build_llvm/./lib/clang/4.0.0/lib/linux/libclang_rt.xray-fdr-x86_64.a(xray_buffer_queue.cc.o): In function `std::error_code::error_code()':
/opt/rh/devtoolset-6/root/usr/include/c++/6.2.1/system_error:141: undefined reference to `std::_V2::system_category()'
/home/hanzer/build/build_llvm/./lib/clang/4.0.0/lib/linux/libclang_rt.xray-fdr-x86_64.a(xray_buffer_queue.cc.o): In function `std::make_error_code(std::errc)':
/opt/rh/devtoolset-6/root/usr/include/c++/6.2.1/system_error:197: undefined reference to `std::_V2::generic_category()'
/opt/rh/devtoolset-6/root/usr/include/c++/6.2.1/system_error:197: undefined reference to `std::_V2::generic_category()'
/home/hanzer/build/build_llvm/./lib/clang/4.0.0/lib/linux/libclang_rt.xray-fdr-x86_64.a(xray_buffer_queue.cc.o): In function `std::error_code::error_code()':
/opt/rh/devtoolset-6/root/usr/include/c++/6.2.1/system_error:141: undefined reference to `std::_V2::system_category()'
clang-4.0: error: linker command failed with exit code 1 (use -v to see invocation)
[117/475] Building CXX object tools/clang/unittests/Format/CMakeFiles/FormatTests.dir/FormatTestObjC.cpp.o
[118/475] Building CXX object tools/lld/unittests/MachOTests/CMakeFiles/lldMachOTests.dir/MachONormalizedFileBinaryReaderTests.cpp.o
[119/475] Building CXX object unittests/DebugInfo/PDB/CMakeFiles/DebugInfoPDBTests.dir/MSFBuilderTest.cpp.o
[120/475] Performing build step for 'libcxx_msan_x86_64'
-- libcxx_msan_x86_64 build command succeeded.  See also /home/hanzer/build/build_llvm/projects/compiler-rt/lib/msan/tests/../libcxx_msan_x86_64/src/libcxx_msan_x86_64-stamp/libcxx_msan_x86_64-build-*.log
[121/475] Building CXX object tools/clang/unittests/Format/CMakeFiles/FormatTests.dir/FormatTest.cpp.o
ninja: build stopped: subcommand failed.