lli/RemoteMemoryManager.cpp: Resurrect __main stuff removed in r192504 to unbreak mingw32.
llvm-svn: 193472
diff --git a/llvm/tools/lli/RemoteMemoryManager.cpp b/llvm/tools/lli/RemoteMemoryManager.cpp
index 04fc40e..f730f09 100644
--- a/llvm/tools/lli/RemoteMemoryManager.cpp
+++ b/llvm/tools/lli/RemoteMemoryManager.cpp
@@ -204,3 +204,19 @@
void RemoteMemoryManager::deallocateFunctionBody(void *Body) {
llvm_unreachable("Unexpected!");
}
+
+static int jit_noop() {
+ return 0;
+}
+
+uint64_t RemoteMemoryManager::getSymbolAddress(const std::string &Name) {
+ // We should not invoke parent's ctors/dtors from generated main()!
+ // On Mingw and Cygwin, the symbol __main is resolved to
+ // callee's(eg. tools/lli) one, to invoke wrong duplicated ctors
+ // (and register wrong callee's dtors with atexit(3)).
+ // We expect ExecutionEngine::runStaticConstructorsDestructors()
+ // is called before ExecutionEngine::runFunctionAsMain() is called.
+ if (Name == "__main") return (uintptr_t)&jit_noop;
+
+ return 0;
+}
diff --git a/llvm/tools/lli/RemoteMemoryManager.h b/llvm/tools/lli/RemoteMemoryManager.h
index 5d0456f..3368b30 100644
--- a/llvm/tools/lli/RemoteMemoryManager.h
+++ b/llvm/tools/lli/RemoteMemoryManager.h
@@ -78,7 +78,7 @@
// interface does support this, but clients must provide their own
// mechanism for finding remote symbol addresses. MCJIT will resolve
// symbols from Modules it contains.
- uint64_t getSymbolAddress(const std::string &Name) { return 0; }
+ uint64_t getSymbolAddress(const std::string &Name);
void notifyObjectLoaded(ExecutionEngine *EE, const ObjectImage *Obj);