diff options
| -rw-r--r-- | tools/lli/lli.cpp | 12 |
1 files changed, 12 insertions, 0 deletions
diff --git a/tools/lli/lli.cpp b/tools/lli/lli.cpp index c5645ec601..57a31f21b8 100644 --- a/tools/lli/lli.cpp +++ b/tools/lli/lli.cpp @@ -338,6 +338,10 @@ void LLIMCJITMemoryManager::invalidateInstructionCache() { AllocatedCodeMem[i].size()); } +static int jit_noop() { + return 0; +} + void *LLIMCJITMemoryManager::getPointerToNamedFunction(const std::string &Name, bool AbortOnFailure) { #if defined(__linux__) @@ -360,6 +364,14 @@ void *LLIMCJITMemoryManager::getPointerToNamedFunction(const std::string &Name, if (Name == "mknod") return (void*)(intptr_t)&mknod; #endif // __linux__ + // 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 (void*)(intptr_t)&jit_noop; + const char *NameStr = Name.c_str(); void *Ptr = sys::DynamicLibrary::SearchForAddressOfSymbol(NameStr); if (Ptr) return Ptr; |