1 //===-- LeakDetector.cpp - Implement LeakDetector interface ---------------===//
3 // The LLVM Compiler Infrastructure
5 // This file is distributed under the University of Illinois Open Source
6 // License. See LICENSE.TXT for details.
8 //===----------------------------------------------------------------------===//
10 // This file implements the LeakDetector class.
12 //===----------------------------------------------------------------------===//
14 #include "LLVMContextImpl.h"
15 #include "llvm/Support/LeakDetector.h"
16 #include "llvm/ADT/SmallPtrSet.h"
17 #include "llvm/Support/Compiler.h"
18 #include "llvm/Support/ManagedStatic.h"
19 #include "llvm/Support/Mutex.h"
20 #include "llvm/Support/Threading.h"
21 #include "llvm/Value.h"
24 static ManagedStatic<sys::SmartMutex<true> > ObjectsLock;
25 static ManagedStatic<LeakDetectorImpl<void> > Objects;
27 static void clearGarbage(LLVMContext &Context) {
29 Context.pImpl->LLVMObjects.clear();
32 void LeakDetector::addGarbageObjectImpl(void *Object) {
33 sys::SmartScopedLock<true> Lock(*ObjectsLock);
34 Objects->addGarbage(Object);
37 void LeakDetector::addGarbageObjectImpl(const Value *Object) {
38 LLVMContextImpl *pImpl = Object->getContext().pImpl;
39 pImpl->LLVMObjects.addGarbage(Object);
42 void LeakDetector::removeGarbageObjectImpl(void *Object) {
43 sys::SmartScopedLock<true> Lock(*ObjectsLock);
44 Objects->removeGarbage(Object);
47 void LeakDetector::removeGarbageObjectImpl(const Value *Object) {
48 LLVMContextImpl *pImpl = Object->getContext().pImpl;
49 pImpl->LLVMObjects.removeGarbage(Object);
52 void LeakDetector::checkForGarbageImpl(LLVMContext &Context,
53 const std::string &Message) {
54 LLVMContextImpl *pImpl = Context.pImpl;
55 sys::SmartScopedLock<true> Lock(*ObjectsLock);
57 Objects->setName("GENERIC");
58 pImpl->LLVMObjects.setName("LLVM");
60 // use non-short-circuit version so that both checks are performed
61 if (Objects->hasGarbage(Message) |
62 pImpl->LLVMObjects.hasGarbage(Message))
63 errs() << "\nThis is probably because you removed an object, but didn't "
64 << "delete it. Please check your code for memory leaks.\n";
66 // Clear out results so we don't get duplicate warnings on
68 clearGarbage(Context);