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Linker error with `context-impl=ucontext`: multiple definition of `boost::context::detail::current_rec` #78

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jspam opened this Issue Apr 10, 2018 · 3 comments

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jspam commented Apr 10, 2018

When building with context-impl=ucontext define=BOOST_USE_UCONTEXT on branch develop (commit 7900c86) I get the following linker error:

bin.v2/libs/context/build/gcc-7.3.0/release/context-impl-ucontext/threading-multi/fiber.o:(.tbss+0x18): multiple definition of `boost::context::detail::current_rec'
bin.v2/libs/context/build/gcc-7.3.0/release/context-impl-ucontext/threading-multi/continuation.o:(.tbss+0x18): first defined here
collect2: error: ld returned 1 exit status

    "g++"    -o "bin.v2/libs/context/build/gcc-7.3.0/release/context-impl-ucontext/threading-multi/libboost_context.so.1.67.0" -Wl,-h -Wl,libboost_context.so.1.67.0 -shared -Wl,--start-group "bin.v2/libs/context/build/gcc-7.3.0/release/context-impl-ucontext/threading-multi/continuation.o" "bin.v2/libs/context/build/gcc-7.3.0/release/context-impl-ucontext/threading-multi/fiber.o" "bin.v2/libs/context/build/gcc-7.3.0/release/context-impl-ucontext/threading-multi/execution_context.o" "bin.v2/libs/context/build/gcc-7.3.0/release/context-impl-ucontext/threading-multi/posix/stack_traits.o"  -Wl,-Bstatic  -Wl,-Bdynamic -lrt -Wl,--end-group -fPIC -m64 -pthread 

The multiple definitions are here:

fiber.cpp:24: thread_local fiber_activation_record * current_rec;
continuation.cpp:26: thread_local activation_record * current_rec;

olk added a commit that referenced this issue Apr 11, 2018

rename thread-local for fiber
- in context of #78
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olk commented Apr 11, 2018

ty

@olk olk closed this Apr 11, 2018

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olk commented Apr 11, 2018

could you verify the fix, please?

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jspam commented Apr 11, 2018

It works, thank you for the fix.

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