Export LLVM plugin entrypoint for windows shared library builds #115431
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Add Symbol visibility macro to llvmGetPassPluginInfo so plugins export it for windows shared library builds with explicit symbol visibility macros enabled. This avoids the need for existing plugins having to manually add visibility macros to there llvmGetPassPluginInfo function to work on windows. This is part of the work to enable LLVM_BUILD_LLVM_DYLIB and plugins on window.
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compnerd
reviewed
Nov 11, 2024
|
@compnerd, can we make another review round? |
compnerd
requested changes
Nov 19, 2024
| extern "C" ::llvm::PassPluginLibraryInfo LLVM_ATTRIBUTE_WEAK | ||
| llvmGetPassPluginInfo(); | ||
| #endif |
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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();There was a problem hiding this comment.
That looks a really painful way to declare it.
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@fsfod, this one looks towards its final phase. Can you address the comments? |
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Add Symbol visibility macro to llvmGetPassPluginInfo so plugins export it for windows shared library builds with explicit symbol visibility macros enabled. This also avoids the need for existing plugins having to manually add visibility macros to there llvmGetPassPluginInfo function to work on windows.
This is part of the work to enable LLVM_BUILD_LLVM_DYLIB and plugins on window.