Opened 8 years ago
Last modified 3 years ago
#53150 accepted defect
llvm-3.8: llvm ld: unknown option: -export_dynamic
Reported by: | gbrtrac | Owned by: | jeremyhu (Jeremy Huddleston Sequoia) |
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Priority: | Normal | Milestone: | |
Component: | ports | Version: | |
Keywords: | Cc: | cooljeanius (Eric Gallager) | |
Port: | llvm-3.8 |
Description (last modified by ryandesign (Ryan Carsten Schmidt))
There is an unknown linker flag being used in the building of llvm
:info:build /opt/local/bin/clang++-mp-3.7 -pipe -Os -std=c++11 -stdlib=libc++ -fPIC -fvisibility-inlines-hidden -Wall -W -Wno-unused-parameter -Wwrite-strings -Wcast-qual -Wmissing-field-initializers -pedantic -Wno-long-long -Wcovered-switch-default -Wnon-virtual-dtor -Wdelete-non-virtual-dtor -std=c++11 -DNDEBUG -arch x86_64 -mmacosx-version-min=10.9 -Wl,-search_paths_first -Wl,-headerpad_max_install_names -L/opt/local/lib -Wl,-headerpad_max_install_names -rdynamic CMakeFiles/bugpoint.dir/BugDriver.cpp.o CMakeFiles/bugpoint.dir/CrashDebugger.cpp.o CMakeFiles/bugpoint.dir/ExecutionDriver.cpp.o CMakeFiles/bugpoint.dir/ExtractFunction.cpp.o CMakeFiles/bugpoint.dir/FindBugs.cpp.o CMakeFiles/bugpoint.dir/Miscompilation.cpp.o CMakeFiles/bugpoint.dir/OptimizerDriver.cpp.o CMakeFiles/bugpoint.dir/ToolRunner.cpp.o CMakeFiles/bugpoint.dir/bugpoint.cpp.o -o ../../bin/bugpoint -Wl,-rpath,/opt/local/libexec/llvm-3.8/lib ../../lib/libLLVM.dylib :info:build ld: unknown option: -export_dynamic
Attachments (1)
Change History (16)
comment:1 Changed 8 years ago by ryandesign (Ryan Carsten Schmidt)
Description: | modified (diff) |
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Owner: | set to jeremyhu |
Port: | llvm-3.8 added |
Status: | new → assigned |
Summary: | llvm ld: unknown option: -export_dynamic → llvm-3.8: llvm ld: unknown option: -export_dynamic |
comment:2 Changed 8 years ago by jeremyhu (Jeremy Huddleston Sequoia)
comment:3 Changed 8 years ago by jeremyhu (Jeremy Huddleston Sequoia)
Status: | assigned → accepted |
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comment:4 Changed 8 years ago by jeremyhu (Jeremy Huddleston Sequoia)
Note that's just a warning from the linker. Are you seeing fallout from it?
comment:5 Changed 8 years ago by gbrtrac
The "warning" actually stops the build -- treated as an error
/opt/local/libexec/llvm-3.7/bin/ld -v @(#)PROGRAM:ld PROJECT:ld64-136 configured to support archs: i386 x86_64 armv7 armv7s LTO support using: LLVM version 3.7.1
comment:6 Changed 8 years ago by jeremyhu (Jeremy Huddleston Sequoia)
What port were you trying to build when you encountered this error?
Please attach the full build log.
Changed 8 years ago by gbrtrac
comment:8 Changed 8 years ago by jeremyhu (Jeremy Huddleston Sequoia)
Why did you decide to use the +ld64_variant? ld64-136 is really only useful for Leopard. If you use ld64-latest instead, I expect you can get past this.
clang should be only setting that on newer versions of ld that support it (137+):
commit bd77c59acc58e797756b0fcc6739319587e95d85 Author: Bob Wilson <bob.wilson@apple.com> Date: Fri Aug 2 22:25:34 2013 +0000 Only use the Darwin linker's -export_dynamic option with supported versions. Related to <rdar://problem/14578094>. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@187680 91177308-0d34-0410-b5e6-96231b3b80d8
comment:9 Changed 8 years ago by jeremyhu (Jeremy Huddleston Sequoia)
Reduced:
$ clang-mp-devel -c true.c && clang-mp-devel -rdynamic true.o -v ... "/opt/local/libexec/llvm-devel/bin/ld" -demangle -export_dynamic -lto_library /opt/local/libexec/llvm-devel/lib/libLTO.dylib -dynamic -arch x86_64 -macosx_version_min 10.9.0 -o a.out true.o -lSystem /opt/local/libexec/llvm-devel/bin/../lib/clang/4.0.0/lib/darwin/libclang_rt.osx.a ld: unknown option: -export_dynamic clang: error: linker command failed with exit code 1 (use -v to see invocation) $ /opt/local/libexec/llvm-devel/bin/ld -v @(#)PROGRAM:ld PROJECT:ld64-136 configured to support archs: i386 x86_64 armv7 armv7s LTO support using: LLVM version 4.0.0svn
comment:10 Changed 8 years ago by jeremyhu (Jeremy Huddleston Sequoia)
Filed upstream bug https://llvm.org/bugs/show_bug.cgi?id=31465
comment:11 Changed 8 years ago by jeremyhu (Jeremy Huddleston Sequoia)
Do the following to fix this on your system:
sudo port -v -f deactivate ld64 sudo port -v install ld64 -ld64_136
This ticket tracks improving messaging to users and/or making this a bit more foolproof.
comment:13 Changed 5 years ago by kencu (Ken)
Cc: | kencu added |
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comment:14 Changed 3 years ago by cooljeanius (Eric Gallager)
Cc: | cooljeanius added |
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comment:15 Changed 3 years ago by kencu (Ken)
Cc: | kencu removed |
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What is the output of: