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fb33bc86b6
Summary: For builds with LLVM_BUILD_LLVM_DYLIB=ON and BUILD_SHARED_LIBS=OFF this change makes all symbols in the target specific libraries hidden by default. A new macro called LLVM_EXTERNAL_VISIBILITY has been added to mark symbols in these libraries public, which is mainly needed for the definitions of the LLVMInitialize* functions. This patch reduces the number of public symbols in libLLVM.so by about 25%. This should improve load times for the dynamic library and also make abi checker tools, like abidiff require less memory when analyzing libLLVM.so One side-effect of this change is that for builds with LLVM_BUILD_LLVM_DYLIB=ON and LLVM_LINK_LLVM_DYLIB=ON some unittests that access symbols that are no longer public will need to be statically linked. Before and after public symbol counts (using gcc 8.2.1, ld.bfd 2.31.1): nm before/libLLVM-9svn.so | grep ' [A-Zuvw] ' | wc -l 36221 nm after/libLLVM-9svn.so | grep ' [A-Zuvw] ' | wc -l 26278 Reviewers: chandlerc, beanz, mgorny, rnk, hans Reviewed By: rnk, hans Subscribers: merge_guards_bot, luismarques, smeenai, ldionne, lenary, s.egerton, pzheng, sameer.abuasal, MaskRay, wuzish, echristo, Jim, hiraditya, michaelplatings, chapuni, jholewinski, arsenm, dschuff, jyknight, dylanmckay, sdardis, nemanjai, jvesely, javed.absar, sbc100, jgravelle-google, aheejin, kbarton, fedor.sergeev, asb, rbar, johnrusso, simoncook, apazos, sabuasal, niosHD, jrtc27, zzheng, edward-jones, mgrang, atanasyan, rogfer01, MartinMosbeck, brucehoult, the_o, PkmX, jocewei, kristina, jsji, llvm-commits Tags: #llvm Differential Revision: https://reviews.llvm.org/D54439
47 lines
1.4 KiB
CMake
47 lines
1.4 KiB
CMake
add_custom_target(UnitTests)
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set_target_properties(UnitTests PROPERTIES FOLDER "Tests")
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function(add_llvm_unittest test_dirname)
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add_unittest(UnitTests ${test_dirname} ${ARGN})
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endfunction()
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function(add_llvm_unittest_with_input_files test_dirname)
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add_unittest_with_input_files(UnitTests ${test_dirname} ${ARGN})
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endfunction()
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# The target unittests may test APIs that aren't exported in libLLVM.so, so
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# we need to always link against the static libraries.
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function(add_llvm_target_unittest test_dir_name)
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add_llvm_unittest(${test_dir_name} DISABLE_LLVM_LINK_LLVM_DYLIB ${ARGN})
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endfunction()
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add_subdirectory(ADT)
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add_subdirectory(Analysis)
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add_subdirectory(AsmParser)
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add_subdirectory(BinaryFormat)
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add_subdirectory(Bitcode)
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add_subdirectory(Bitstream)
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add_subdirectory(CodeGen)
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add_subdirectory(DebugInfo)
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add_subdirectory(Demangle)
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add_subdirectory(ExecutionEngine)
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add_subdirectory(Frontend)
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add_subdirectory(FuzzMutate)
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add_subdirectory(IR)
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add_subdirectory(LineEditor)
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add_subdirectory(Linker)
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add_subdirectory(MC)
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add_subdirectory(MI)
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add_subdirectory(Object)
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add_subdirectory(ObjectYAML)
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add_subdirectory(Option)
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add_subdirectory(Remarks)
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add_subdirectory(Passes)
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add_subdirectory(ProfileData)
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add_subdirectory(Support)
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add_subdirectory(TableGen)
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add_subdirectory(Target)
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add_subdirectory(TextAPI)
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add_subdirectory(Transforms)
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add_subdirectory(XRay)
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add_subdirectory(tools)
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