Author: ehsan Date: Tue Feb 9 13:43:11 2016 New Revision: 260265 URL: http://llvm.org/viewvc/llvm-project?rev=260265&view=rev Log: clang-cl: Support loading plugins on Windows
This builds on the support being added to LLVM to import and export registries from DLLs. This will allow us to pick up the registry entries added in the DLL's copy of FrontendPluginRegistry. This will allow us to use plugins on Windows using: $ clang-cl -Xclang -load -Xclang plugin.dll \ -Xclang -add-plugin -Xclang foo Modified: cfe/trunk/docs/ClangPlugins.rst cfe/trunk/examples/PrintFunctionNames/PrintFunctionNames.cpp cfe/trunk/lib/FrontendTool/ExecuteCompilerInvocation.cpp Modified: cfe/trunk/docs/ClangPlugins.rst URL: http://llvm.org/viewvc/llvm-project/cfe/trunk/docs/ClangPlugins.rst?rev=260265&r1=260264&r2=260265&view=diff ============================================================================== --- cfe/trunk/docs/ClangPlugins.rst (original) +++ cfe/trunk/docs/ClangPlugins.rst Tue Feb 9 13:43:11 2016 @@ -37,11 +37,14 @@ Registering a plugin ==================== A plugin is loaded from a dynamic library at runtime by the compiler. To -register a plugin in a library, use ``FrontendPluginRegistry::Add<>``: +register a plugin in a library, use ``FrontendPluginRegistry::Add<>``. +On Windows, you also need to export your plugin registry using +``LLVM_EXPORT_REGISTRY``. Here is an example: .. code-block:: c++ static FrontendPluginRegistry::Add<MyPlugin> X("my-plugin-name", "my plugin description"); + LLVM_EXPORT_REGISTRY(FrontendPluginRegistry) Putting it all together ======================= Modified: cfe/trunk/examples/PrintFunctionNames/PrintFunctionNames.cpp URL: http://llvm.org/viewvc/llvm-project/cfe/trunk/examples/PrintFunctionNames/PrintFunctionNames.cpp?rev=260265&r1=260264&r2=260265&view=diff ============================================================================== --- cfe/trunk/examples/PrintFunctionNames/PrintFunctionNames.cpp (original) +++ cfe/trunk/examples/PrintFunctionNames/PrintFunctionNames.cpp Tue Feb 9 13:43:11 2016 @@ -121,3 +121,4 @@ protected: static FrontendPluginRegistry::Add<PrintFunctionNamesAction> X("print-fns", "print function names"); +LLVM_EXPORT_REGISTRY(FrontendPluginRegistry) Modified: cfe/trunk/lib/FrontendTool/ExecuteCompilerInvocation.cpp URL: http://llvm.org/viewvc/llvm-project/cfe/trunk/lib/FrontendTool/ExecuteCompilerInvocation.cpp?rev=260265&r1=260264&r2=260265&view=diff ============================================================================== --- cfe/trunk/lib/FrontendTool/ExecuteCompilerInvocation.cpp (original) +++ cfe/trunk/lib/FrontendTool/ExecuteCompilerInvocation.cpp Tue Feb 9 13:43:11 2016 @@ -189,9 +189,16 @@ bool clang::ExecuteCompilerInvocation(Co e = Clang->getFrontendOpts().Plugins.size(); i != e; ++i) { const std::string &Path = Clang->getFrontendOpts().Plugins[i]; std::string Error; - if (llvm::sys::DynamicLibrary::LoadLibraryPermanently(Path.c_str(), &Error)) + llvm::sys::DynamicLibrary DL( + llvm::sys::DynamicLibrary::getPermanentLibrary(Path.c_str(), &Error)); + if (DL.isValid()) { + // On Windows, we need to import the plugin front-end action + // dynamically. + LLVM_IMPORT_REGISTRY(FrontendPluginRegistry, DL); + } else { Clang->getDiagnostics().Report(diag::err_fe_unable_to_load_plugin) << Path << Error; + } } // Honor -mllvm. _______________________________________________ cfe-commits mailing list cfe-commits@lists.llvm.org http://lists.llvm.org/cgi-bin/mailman/listinfo/cfe-commits