From fe36eaebda5caffe447e72878a0068c5ec808639 Mon Sep 17 00:00:00 2001 From: Chris Lattner Date: Sat, 22 Apr 2006 05:02:46 +0000 Subject: Fix JIT support for static ctors, which was apparently completely broken! This allows Prolangs-C++/city and probably a bunch of other stuff to work well with the new front-end llvm-svn: 27941 --- llvm/lib/ExecutionEngine/ExecutionEngine.cpp | 6 +++++- 1 file changed, 5 insertions(+), 1 deletion(-) (limited to 'llvm/lib/ExecutionEngine/ExecutionEngine.cpp') diff --git a/llvm/lib/ExecutionEngine/ExecutionEngine.cpp b/llvm/lib/ExecutionEngine/ExecutionEngine.cpp index ab56f592b04..5cd83ff51a3 100644 --- a/llvm/lib/ExecutionEngine/ExecutionEngine.cpp +++ b/llvm/lib/ExecutionEngine/ExecutionEngine.cpp @@ -103,7 +103,11 @@ static void *CreateArgv(ExecutionEngine *EE, void ExecutionEngine::runStaticConstructorsDestructors(bool isDtors) { const char *Name = isDtors ? "llvm.global_dtors" : "llvm.global_ctors"; GlobalVariable *GV = CurMod.getNamedGlobal(Name); - if (!GV || GV->isExternal() || !GV->hasInternalLinkage()) return; + + // If this global has internal linkage, or if it has a use, then it must be + // an old-style (llvmgcc3) static ctor with __main linked in and in use. If + // this is the case, don't execute any of the global ctors, __main will do it. + if (!GV || GV->isExternal() || GV->hasInternalLinkage()) return; // Should be an array of '{ int, void ()* }' structs. The first value is the // init priority, which we ignore. -- cgit v1.2.3