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//===--- SanitizerBlacklist.cpp - Blacklist for sanitizers ----------------===//
//
// The LLVM Compiler Infrastructure
//
// This file is distributed under the University of Illinois Open Source
// License. See LICENSE.TXT for details.
//
//===----------------------------------------------------------------------===//
//
// User-provided blacklist used to disable/alter instrumentation done in
// sanitizers.
//
//===----------------------------------------------------------------------===//
#include "SanitizerBlacklist.h"
#include "llvm/IR/Function.h"
#include "llvm/IR/GlobalValue.h"
#include "llvm/IR/Module.h"
using namespace clang;
using namespace CodeGen;
static StringRef GetGlobalTypeString(const llvm::GlobalValue &G) {
// Types of GlobalVariables are always pointer types.
llvm::Type *GType = G.getType()->getElementType();
// For now we support blacklisting struct types only.
if (llvm::StructType *SGType = dyn_cast<llvm::StructType>(GType)) {
if (!SGType->isLiteral())
return SGType->getName();
}
return "<unknown type>";
}
bool SanitizerBlacklist::isIn(const llvm::Module &M,
const StringRef Category) const {
return SCL->inSection("src", M.getModuleIdentifier(), Category);
}
bool SanitizerBlacklist::isIn(const llvm::Function &F) const {
return isIn(*F.getParent()) ||
SCL->inSection("fun", F.getName(), "");
}
bool SanitizerBlacklist::isIn(const llvm::GlobalVariable &G,
const StringRef Category) const {
return isIn(*G.getParent(), Category) ||
SCL->inSection("global", G.getName(), Category) ||
SCL->inSection("type", GetGlobalTypeString(G), Category);
}
bool SanitizerBlacklist::isBlacklistedType(StringRef MangledTypeName) const {
return SCL->inSection("type", MangledTypeName);
}
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