1 //===--- SanitizerBlacklist.cpp - Blacklist for sanitizers ----------------===// 2 // 3 // The LLVM Compiler Infrastructure 4 // 5 // This file is distributed under the University of Illinois Open Source 6 // License. See LICENSE.TXT for details. 7 // 8 //===----------------------------------------------------------------------===// 9 // 10 // User-provided blacklist used to disable/alter instrumentation done in 11 // sanitizers. 12 // 13 //===----------------------------------------------------------------------===// 14 #include "SanitizerBlacklist.h" 15 #include "llvm/IR/Function.h" 16 #include "llvm/IR/GlobalValue.h" 17 #include "llvm/IR/Module.h" 18 19 using namespace clang; 20 using namespace CodeGen; 21 22 static StringRef GetGlobalTypeString(const llvm::GlobalValue &G) { 23 // Types of GlobalVariables are always pointer types. 24 llvm::Type *GType = G.getType()->getElementType(); 25 // For now we support blacklisting struct types only. 26 if (llvm::StructType *SGType = dyn_cast<llvm::StructType>(GType)) { 27 if (!SGType->isLiteral()) 28 return SGType->getName(); 29 } 30 return "<unknown type>"; 31 } 32 33 bool SanitizerBlacklist::isIn(const llvm::Module &M, 34 const StringRef Category) const { 35 return SCL->inSection("src", M.getModuleIdentifier(), Category); 36 } 37 38 bool SanitizerBlacklist::isIn(const llvm::Function &F) const { 39 return isIn(*F.getParent()) || 40 SCL->inSection("fun", F.getName(), ""); 41 } 42 43 bool SanitizerBlacklist::isIn(const llvm::GlobalVariable &G, 44 const StringRef Category) const { 45 return isIn(*G.getParent(), Category) || 46 SCL->inSection("global", G.getName(), Category) || 47 SCL->inSection("type", GetGlobalTypeString(G), Category); 48 } 49
