From 7d3cbe255e86dee80e272350b9a28d889a1ebba7 Mon Sep 17 00:00:00 2001 From: Kostya Serebryany Date: Wed, 14 Dec 2011 00:01:51 +0000 Subject: [PATCH] [asan] remove .preinit_array from the compiler module (it breaks .so builds). This should be done in the run-time. llvm-svn: 146527 --- .../Instrumentation/AddressSanitizer.cpp | 16 ---------------- 1 file changed, 16 deletions(-) diff --git a/lib/Transforms/Instrumentation/AddressSanitizer.cpp b/lib/Transforms/Instrumentation/AddressSanitizer.cpp index f170cf150ab..4d6e74b8334 100644 --- a/lib/Transforms/Instrumentation/AddressSanitizer.cpp +++ b/lib/Transforms/Instrumentation/AddressSanitizer.cpp @@ -163,8 +163,6 @@ struct AddressSanitizer : public ModulePass { private: - void appendToPreinitArray(Module &M, Function *F); - uint64_t getAllocaSizeInBytes(AllocaInst *AI) { Type *Ty = AI->getAllocatedType(); uint64_t SizeInBytes = TD->getTypeStoreSizeInBits(Ty) / 8; @@ -565,17 +563,6 @@ bool AddressSanitizer::insertGlobalRedzones(Module &M) { return true; } -// .preinit_array is something that hapens before all other inits. -// On systems where .preinit_array is honored, we will call __asan_init early. -void AddressSanitizer::appendToPreinitArray(Module &M, Function *F) { - IRBuilder<> IRB(M.getContext()); - GlobalVariable *Var = - new GlobalVariable(M, PointerType::getUnqual(F->getFunctionType()), - false, GlobalValue::PrivateLinkage, - F, "__asan_preinit_private"); - Var->setSection(".preinit_array"); -} - // virtual bool AddressSanitizer::runOnModule(Module &M) { // Initialize the private fields. No one has accessed them before. @@ -647,9 +634,6 @@ bool AddressSanitizer::runOnModule(Module &M) { appendToGlobalCtors(M, AsanCtorFunction, 1 /*high priority*/); - if (M.getTargetTriple().find("linux") != std::string::npos) - appendToPreinitArray(M, AsanInitFunction); - return Res; }