Make llvmc work again.
Chris recently broke llvmc with his Makefile changes (r75379). That patch made
the global change .o -> .a, which caused built-in llvmc plugins to stop working
since plugin initialization in llvmc is based on static variables not referenced
from the main executable. This patch implements auto-generated forced references
to the plugin libraries.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@74000 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/utils/TableGen/LLVMCConfigurationEmitter.cpp b/utils/TableGen/LLVMCConfigurationEmitter.cpp
index 36f094d..e9acd96 100644
--- a/utils/TableGen/LLVMCConfigurationEmitter.cpp
+++ b/utils/TableGen/LLVMCConfigurationEmitter.cpp
@@ -1984,6 +1984,7 @@
/// additional declarations.
void EmitIncludes(std::ostream& O) {
O << "#include \"llvm/CompilerDriver/CompilationGraph.h\"\n"
+ << "#include \"llvm/CompilerDriver/ForceLinkageMacros.h\"\n"
<< "#include \"llvm/CompilerDriver/Plugin.h\"\n"
<< "#include \"llvm/CompilerDriver/Tool.h\"\n\n"
@@ -2106,7 +2107,13 @@
// Emit code for plugin registration.
EmitRegisterPlugin(Data.Priority, O);
- O << "} // End anonymous namespace.\n";
+ O << "} // End anonymous namespace.\n\n";
+
+ // Force linkage magic.
+ O << "namespace llvmc {\n";
+ O << "LLVMC_FORCE_LINKAGE_DECL(LLVMC_PLUGIN_NAME) {}\n";
+ O << "}\n";
+
// EOF
}