[asan] better debug diagnostics in asan compiler module

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@166102 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Kostya Serebryany 2012-10-17 13:40:06 +00:00
parent 02bf98ab38
commit 324d96b9e2

View File

@ -534,7 +534,7 @@ void AddressSanitizer::createInitializerPoisonCalls(Module &M,
bool AddressSanitizer::ShouldInstrumentGlobal(GlobalVariable *G) {
Type *Ty = cast<PointerType>(G->getType())->getElementType();
DEBUG(dbgs() << "GLOBAL: " << *G);
DEBUG(dbgs() << "GLOBAL: " << *G << "\n");
if (BL->isIn(*G)) return false;
if (!Ty->isSized()) return false;
@ -682,7 +682,7 @@ bool AddressSanitizer::insertGlobalRedzones(Module &M) {
FirstDynamic = LastDynamic;
}
DEBUG(dbgs() << "NEW GLOBAL:\n" << *NewGlobal);
DEBUG(dbgs() << "NEW GLOBAL: " << *NewGlobal << "\n");
}
ArrayType *ArrayOfGlobalStructTy = ArrayType::get(GlobalStructTy, n);
@ -851,6 +851,7 @@ bool AddressSanitizer::maybeInsertAsanInitAtFunctionEntry(Function &F) {
bool AddressSanitizer::runOnFunction(Function &F) {
if (BL->isIn(F)) return false;
if (&F == AsanCtorFunction) return false;
DEBUG(dbgs() << "ASAN instrumenting:\n" << F << "\n");
// If needed, insert __asan_init before checking for AddressSafety attr.
maybeInsertAsanInitAtFunctionEntry(F);
@ -914,8 +915,6 @@ bool AddressSanitizer::runOnFunction(Function &F) {
NumInstrumented++;
}
DEBUG(dbgs() << F);
bool ChangedStack = poisonStackInFunction(F);
// We must unpoison the stack before every NoReturn call (throw, _exit, etc).
@ -925,6 +924,7 @@ bool AddressSanitizer::runOnFunction(Function &F) {
IRBuilder<> IRB(CI);
IRB.CreateCall(AsanHandleNoReturnFunc);
}
DEBUG(dbgs() << "ASAN done instrumenting:\n" << F << "\n");
return NumInstrumented > 0 || ChangedStack || !NoReturnCalls.empty();
}