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[sanitizer] when dumping the basic block trace, also dump the module names. Patch by Laszlo Szekeres

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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@229940 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Kostya Serebryany 2015-02-20 00:30:44 +00:00
parent 2f0b27dc67
commit 727a6ee223
1 changed files with 12 additions and 3 deletions
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15
lib/Transforms/Instrumentation/SanitizerCoverage.cpp
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@ -137,6 +137,7 @@ bool SanitizerCoverageModule::runOnModule(Module &M) {
IntptrTy = Type::getIntNTy(*C, DLP->getDataLayout().getPointerSizeInBits());
Type *VoidTy = Type::getVoidTy(*C);
IRBuilder<> IRB(*C);
Type *Int8PtrTy = PointerType::getUnqual(IRB.getInt8Ty());
Type *Int32PtrTy = PointerType::getUnqual(IRB.getInt32Ty());
Function *CtorFunc =
@ -153,7 +154,7 @@ bool SanitizerCoverageModule::runOnModule(Module &M) {
kSanCovIndirCallName, VoidTy, IntptrTy, IntptrTy, nullptr));
SanCovModuleInit = checkInterfaceFunction(
M.getOrInsertFunction(kSanCovModuleInitName, Type::getVoidTy(*C),
Int32PtrTy, IntptrTy, nullptr));
Int32PtrTy, IntptrTy, Int8PtrTy, nullptr));
SanCovModuleInit->setLinkage(Function::ExternalLinkage);
// We insert an empty inline asm after cov callbacks to avoid callback merge.
EmptyAsm = InlineAsm::get(FunctionType::get(IRB.getVoidTy(), false),
@ -190,11 +191,19 @@ bool SanitizerCoverageModule::runOnModule(Module &M) {
IRB.CreatePointerCast(RealGuardArray, Int32PtrTy));
GuardArray->eraseFromParent();
// Create variable for module (compilation unit) name
Constant *ModNameStrConst =
ConstantDataArray::getString(M.getContext(), M.getName(), true);
GlobalVariable *ModuleName =
new GlobalVariable(M, ModNameStrConst->getType(), true,
GlobalValue::PrivateLinkage, ModNameStrConst);
// Call __sanitizer_cov_module_init
IRB.SetInsertPoint(CtorFunc->getEntryBlock().getTerminator());
IRB.CreateCall2(SanCovModuleInit,
IRB.CreateCall3(SanCovModuleInit,
IRB.CreatePointerCast(RealGuardArray, Int32PtrTy),
ConstantInt::get(IntptrTy, SanCovFunction->getNumUses()));
ConstantInt::get(IntptrTy, SanCovFunction->getNumUses()),
IRB.CreatePointerCast(ModuleName, Int8PtrTy));
return true;
}