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Export LLVM plugin entrypoint for windows shared library builds #115431

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Export LLVM plugin entrypoint for windows shared library builds #115431

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bcbb5dc
Export LLVM plugin entrypoint for windows shared library builds
fsfod Nov 7, 2024
66d3650
Switch to just using dllexport for llvmGetPassPluginInfo declaration
fsfod Nov 11, 2024
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6 changes: 6 additions & 0 deletions llvm/include/llvm/Passes/PassPlugin.h
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Original file line number Diff line number Diff line change
Expand Up @@ -107,7 +107,13 @@ class PassPlugin {
/// };
/// }
/// ```

#if defined(_WIN32) && defined(LLVM_BUILD_LLVM_DYLIB)
extern "C" ::llvm::PassPluginLibraryInfo __declspec(dllexport)
llvmGetPassPluginInfo();
#else
extern "C" ::llvm::PassPluginLibraryInfo LLVM_ATTRIBUTE_WEAK
llvmGetPassPluginInfo();
#endif
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@compnerd compnerd Nov 19, 2024

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I think that we can share most of the declaration between the platforms, it is only the attribute that differs.

extern "C" ::llvm::PassPluginLibraryInfo
#if defined(_WIN32)
#if defined(LLVM_BUILD_LLVM_DYLIB)
__declspec(dllexport)
#endif
#else
LLVM_ATTRIBUTE_WEAK
#endif
llvmGetPassPluginInfo();

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@fsfod fsfod Nov 20, 2024

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That looks a really painful way to declare it.


#endif /* LLVM_PASSES_PASSPLUGIN_H */