The following issue has been SUBMITTED. ====================================================================== https://public.kitware.com/Bug/view.php?id=16100 ====================================================================== Reported By: Michał Górny Assigned To: ====================================================================== Project: CMake Issue ID: 16100 Category: CMake Reproducibility: always Severity: major Priority: normal Status: new ====================================================================== Date Submitted: 2016-05-11 03:22 EDT Last Modified: 2016-05-11 03:22 EDT ====================================================================== Summary: Implicit link information parsing reads the wrong line from 'pathcc -v' output Description: $ pathcc --version PathScale EKOPath(tm) Compiler Suite: Version 6.0.779 Built on: Thread model: posix GNU gcc compatible version 4.2.1 [...]
When CMake attempts to get ABI info from the compiler, it gets the following output: [2/2] Linking C executable cmTC_cfda2 PathScale EKOPath(tm) Compiler Suite: Version 6.0.570 Built on: Thread model: posix GNU gcc compatible version 4.2.1 /opt/ekopath/lib/6.0.570/x8664/ldfe -v -TARG:isa=x86_64 -TARG:processor=barcelona -TARG:sse=on -TARG:sse2=on -TARG:sse3=on -TARG:ssse3=off -TARG:sse4a=off -TARG:sse4_1=off -TARG:sse4_2=off -TARG:avx=off -TARG:avx2=off -TARG:avx512dq=off -TARG:avx512vl=off -TARG:avx512bw=off -TARG:avx512er=off -TARG:avx512f=off -TARG:fma=off -TARG:fma4=off -TARG:xop=off -TARG:aes=off -TARG:pclmul=off -TARG:3dnow=off -o cmTC_cfda2 -show CMakeFiles/cmTC_cfda2.dir/CMakeCCompilerABI.c.o --as-needed -lgcc -lc -lmv -lmpath -lm --no-as-needed -lpscrt -lc /opt/ekopath/lib/6.0.570/x8664/../../../x8664/bin/ld -L/opt/ekopath/lib/6.0.570/x8664/64/system-provided/ -L/opt/ekopath/lib/6.0.570/x8664/64/ -rpath=/opt/ekopath/lib/6.0.570/x8664/64/ --dynamic-linker=/lib64/ld-linux-x86-64.so.2 -melf_x86_64 --eh-frame-hdr -v -o cmTC_cfda2 /opt/ekopath/lib/6.0.570/x8664/64/system-provided/crt1.o /opt/ekopath/lib/6.0.570/x8664/64/system-provided/crti.o /opt/ekopath/lib/6.0.570/x8664/64/crtbegin.o CMakeFiles/cmTC_cfda2.dir/CMakeCCompilerABI.c.o --as-needed -L/opt/ekopath/lib/6.0.570/x8664/64/ -lgcc /lib64/libc.so.6 /usr/lib64/libc_nonshared.a /lib64/ld-linux-x86-64.so.2 -L/opt/ekopath/lib/6.0.570/x8664/64/ -lmv -L/opt/ekopath/lib/6.0.570/x8664/64/ -lmpath /lib64/libm.so.6 /lib64/libmvec.so.1 --no-as-needed /opt/ekopath/lib/6.0.570/x8664/64//libpscrt.a /lib64/libc.so.6 /usr/lib64/libc_nonshared.a /lib64/ld-linux-x86-64.so.2 /opt/ekopath/lib/6.0.570/x8664/64/crtend.o /opt/ekopath/lib/6.0.570/x8664/64/system-provided/crtn.o GNU ld (GNU Binutils) 2.25 Parsed C implicit link information from above output: link line regex: [^( *|.*[/\])(ld|([^/\]+-)?ld|collect2)[^/\]*( |$)] [...] link line: [/opt/ekopath/lib/6.0.570/x8664/ldfe -v -TARG:isa=x86_64 -TARG:processor=barcelona -TARG:sse=on -TARG:sse2=on -TARG:sse3=on -TARG:ssse3=off -TARG:sse4a=off -TARG:sse4_1=off -TARG:sse4_2=off -TARG:avx=off -TARG:avx2=off -TARG:avx512dq=off -TARG:avx512vl=off -TARG:avx512bw=off -TARG:avx512er=off -TARG:avx512f=off -TARG:fma=off -TARG:fma4=off -TARG:xop=off -TARG:aes=off -TARG:pclmul=off -TARG:3dnow=off -o cmTC_cfda2 -show CMakeFiles/cmTC_cfda2.dir/CMakeCCompilerABI.c.o --as-needed -lgcc -lc -lmv -lmpath -lm --no-as-needed -lpscrt -lc ] [...] However, this is not the correct line. ldfe is an internal helper, and it is immediately followed by a call to 'ld' which has all the correct -L flags. As a result, pathcc doesn't parse the correct data and doesn't determine multiarch tuple on Debian. Maybe it would be appropriate to not stop at the first line matching the regular expression, and parse the last line matching it instead? This would prevent CMake from parsing the wrapper when it's followed by an actual ld call. Steps to Reproduce: 1. install ekopath nightly (e.g. http://c591116.r16.cf2.rackcdn.com/ekopath/nightly/Linux/ekopath-2016-04-28-installer.run), 2. attempt to build any CMake project. On multiarch systems, find_library() won't be able to find any libraries. On other systems, you can also see the problem when looking at CMakeOutput.log. ====================================================================== Issue History Date Modified Username Field Change ====================================================================== 2016-05-11 03:22 Michał Górny New Issue ====================================================================== -- Powered by www.kitware.com Please keep messages on-topic and check the CMake FAQ at: http://www.cmake.org/Wiki/CMake_FAQ Kitware offers various services to support the CMake community. For more information on each offering, please visit: CMake Support: http://cmake.org/cmake/help/support.html CMake Consulting: http://cmake.org/cmake/help/consulting.html CMake Training Courses: http://cmake.org/cmake/help/training.html Visit other Kitware open-source projects at http://www.kitware.com/opensource/opensource.html Follow this link to subscribe/unsubscribe: http://public.kitware.com/mailman/listinfo/cmake-developers
