caio/clang-p2996
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Revert "[asan] Delay creation of asan ctor."

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Speculative revert. Some libfuzzer tests are affected.

This reverts commit r298731.

llvm-svn: 298890
This commit is contained in:
Alex Shlyapnikov
2017-03-27 23:11:50 +00:00
parent 09171aa31f
commit bbd5cc63d7
4 changed files with 23 additions and 31 deletions
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18
llvm/lib/Transforms/Utils/ModuleUtils.cpp
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@@ -138,17 +138,6 @@ Function *llvm::checkSanitizerInterfaceFunction(Constant *FuncOrBitcast) {
report_fatal_error(Err);
}
Function *llvm::declareSanitizerInitFunction(Module &M, StringRef InitName,
ArrayRef<Type *> InitArgTypes) {
assert(!InitName.empty() && "Expected init function name");
Function *F = checkSanitizerInterfaceFunction(M.getOrInsertFunction(
InitName,
FunctionType::get(Type::getVoidTy(M.getContext()), InitArgTypes, false),
AttributeList()));
F->setLinkage(Function::ExternalLinkage);
return F;
}
std::pair<Function *, Function *> llvm::createSanitizerCtorAndInitFunctions(
Module &M, StringRef CtorName, StringRef InitName,
ArrayRef<Type *> InitArgTypes, ArrayRef<Value *> InitArgs,
@@ -156,13 +145,16 @@ std::pair<Function *, Function *> llvm::createSanitizerCtorAndInitFunctions(
assert(!InitName.empty() && "Expected init function name");
assert(InitArgs.size() == InitArgTypes.size() &&
"Sanitizer's init function expects different number of arguments");
Function *InitFunction =
declareSanitizerInitFunction(M, InitName, InitArgTypes);
Function *Ctor = Function::Create(
FunctionType::get(Type::getVoidTy(M.getContext()), false),
GlobalValue::InternalLinkage, CtorName, &M);
BasicBlock *CtorBB = BasicBlock::Create(M.getContext(), "", Ctor);
IRBuilder<> IRB(ReturnInst::Create(M.getContext(), CtorBB));
Function *InitFunction =
checkSanitizerInterfaceFunction(M.getOrInsertFunction(
InitName, FunctionType::get(IRB.getVoidTy(), InitArgTypes, false),
AttributeList()));
InitFunction->setLinkage(Function::ExternalLinkage);
IRB.CreateCall(InitFunction, InitArgs);
if (!VersionCheckName.empty()) {
Function *VersionCheckFunction =