mirror of
https://github.com/mozilla/gecko-dev.git
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1387 lines
37 KiB
C++
1387 lines
37 KiB
C++
/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
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/* vim: set ts=8 sts=2 et sw=2 tw=80: */
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/* This Source Code Form is subject to the terms of the Mozilla Public
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* License, v. 2.0. If a copy of the MPL was not distributed with this
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* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
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#include "nsTraceRefcnt.h"
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#include "mozilla/IntegerPrintfMacros.h"
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#include "mozilla/StaticPtr.h"
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#include "nsXPCOMPrivate.h"
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#include "nscore.h"
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#include "nsISupports.h"
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#include "nsTArray.h"
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#include "nsTHashtable.h"
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#include "prenv.h"
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#include "plstr.h"
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#include "prlink.h"
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#include "nsCRT.h"
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#include <math.h>
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#include "nsHashKeys.h"
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#include "nsStackWalkPrivate.h"
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#include "nsStackWalk.h"
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#include "nsString.h"
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#include "nsThreadUtils.h"
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#include "CodeAddressService.h"
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#include "nsXULAppAPI.h"
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#ifdef XP_WIN
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#include <process.h>
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#define getpid _getpid
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#else
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#include <unistd.h>
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#endif
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#include "mozilla/BlockingResourceBase.h"
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#include "mozilla/PoisonIOInterposer.h"
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#ifdef HAVE_DLOPEN
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#include <dlfcn.h>
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#endif
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////////////////////////////////////////////////////////////////////////////////
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void
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NS_MeanAndStdDev(double aNumberOfValues,
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double aSumOfValues, double aSumOfSquaredValues,
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double* aMeanResult, double* aStdDevResult)
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{
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double mean = 0.0, var = 0.0, stdDev = 0.0;
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if (aNumberOfValues > 0.0 && aSumOfValues >= 0) {
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mean = aSumOfValues / aNumberOfValues;
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double temp =
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(aNumberOfValues * aSumOfSquaredValues) - (aSumOfValues * aSumOfValues);
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if (temp < 0.0 || aNumberOfValues <= 1) {
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var = 0.0;
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} else {
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var = temp / (aNumberOfValues * (aNumberOfValues - 1));
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}
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// for some reason, Windows says sqrt(0.0) is "-1.#J" (?!) so do this:
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stdDev = var != 0.0 ? sqrt(var) : 0.0;
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}
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*aMeanResult = mean;
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*aStdDevResult = stdDev;
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}
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////////////////////////////////////////////////////////////////////////////////
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#define NS_IMPL_REFCNT_LOGGING
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#ifdef NS_IMPL_REFCNT_LOGGING
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#include "plhash.h"
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#include "prmem.h"
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#include "prlock.h"
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// TraceRefcnt has to use bare PRLock instead of mozilla::Mutex
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// because TraceRefcnt can be used very early in startup.
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static PRLock* gTraceLock;
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#define LOCK_TRACELOG() PR_Lock(gTraceLock)
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#define UNLOCK_TRACELOG() PR_Unlock(gTraceLock)
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static PLHashTable* gBloatView;
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static PLHashTable* gTypesToLog;
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static PLHashTable* gObjectsToLog;
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static PLHashTable* gSerialNumbers;
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static intptr_t gNextSerialNumber;
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static bool gLogging;
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static bool gLogLeaksOnly;
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#define BAD_TLS_INDEX ((unsigned)-1)
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// if gActivityTLS == BAD_TLS_INDEX, then we're
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// unitialized... otherwise this points to a NSPR TLS thread index
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// indicating whether addref activity is legal. If the PTR_TO_INT32 is 0 then
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// activity is ok, otherwise not!
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static unsigned gActivityTLS = BAD_TLS_INDEX;
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static bool gInitialized;
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static nsrefcnt gInitCount;
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static FILE* gBloatLog = nullptr;
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static FILE* gRefcntsLog = nullptr;
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static FILE* gAllocLog = nullptr;
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static FILE* gCOMPtrLog = nullptr;
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struct serialNumberRecord
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{
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intptr_t serialNumber;
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int32_t refCount;
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int32_t COMPtrCount;
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};
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struct nsTraceRefcntStats
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{
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uint64_t mAddRefs;
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uint64_t mReleases;
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uint64_t mCreates;
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uint64_t mDestroys;
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double mRefsOutstandingTotal;
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double mRefsOutstandingSquared;
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double mObjsOutstandingTotal;
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double mObjsOutstandingSquared;
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};
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#ifdef DEBUG
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static const char kStaticCtorDtorWarning[] =
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"XPCOM objects created/destroyed from static ctor/dtor";
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static void
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AssertActivityIsLegal()
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{
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if (gActivityTLS == BAD_TLS_INDEX || PR_GetThreadPrivate(gActivityTLS)) {
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if (PR_GetEnv("MOZ_FATAL_STATIC_XPCOM_CTORS_DTORS")) {
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NS_RUNTIMEABORT(kStaticCtorDtorWarning);
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} else {
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NS_WARNING(kStaticCtorDtorWarning);
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}
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}
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}
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# define ASSERT_ACTIVITY_IS_LEGAL \
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PR_BEGIN_MACRO \
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AssertActivityIsLegal(); \
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PR_END_MACRO
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#else
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# define ASSERT_ACTIVITY_IS_LEGAL PR_BEGIN_MACRO PR_END_MACRO
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#endif // DEBUG
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// These functions are copied from nsprpub/lib/ds/plhash.c, with changes
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// to the functions not called Default* to free the serialNumberRecord or
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// the BloatEntry.
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static void*
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DefaultAllocTable(void* aPool, size_t aSize)
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{
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return PR_MALLOC(aSize);
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}
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static void
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DefaultFreeTable(void* aPool, void* aItem)
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{
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PR_Free(aItem);
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}
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static PLHashEntry*
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DefaultAllocEntry(void* aPool, const void* aKey)
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{
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return PR_NEW(PLHashEntry);
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}
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static void
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SerialNumberFreeEntry(void* aPool, PLHashEntry* aHashEntry, unsigned aFlag)
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{
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if (aFlag == HT_FREE_ENTRY) {
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PR_Free(reinterpret_cast<serialNumberRecord*>(aHashEntry->value));
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PR_Free(aHashEntry);
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}
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}
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static void
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TypesToLogFreeEntry(void* aPool, PLHashEntry* aHashEntry, unsigned aFlag)
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{
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if (aFlag == HT_FREE_ENTRY) {
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free(const_cast<char*>(reinterpret_cast<const char*>(aHashEntry->key)));
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PR_Free(aHashEntry);
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}
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}
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static const PLHashAllocOps serialNumberHashAllocOps = {
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DefaultAllocTable, DefaultFreeTable,
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DefaultAllocEntry, SerialNumberFreeEntry
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};
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static const PLHashAllocOps typesToLogHashAllocOps = {
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DefaultAllocTable, DefaultFreeTable,
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DefaultAllocEntry, TypesToLogFreeEntry
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};
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////////////////////////////////////////////////////////////////////////////////
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#ifdef MOZ_STACKWALKING
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class CodeAddressServiceStringTable MOZ_FINAL
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{
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public:
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CodeAddressServiceStringTable() : mSet(32) {}
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const char* Intern(const char* aString)
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{
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nsCharPtrHashKey* e = mSet.PutEntry(aString);
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return e->GetKey();
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}
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size_t SizeOfExcludingThis(mozilla::MallocSizeOf aMallocSizeOf) const
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{
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return mSet.SizeOfExcludingThis(aMallocSizeOf);
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}
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private:
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typedef nsTHashtable<nsCharPtrHashKey> StringSet;
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StringSet mSet;
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};
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struct CodeAddressServiceStringAlloc MOZ_FINAL
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{
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static char* copy(const char* aStr) { return strdup(aStr); }
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static void free(char* aPtr) { ::free(aPtr); }
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};
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// WalkTheStack does not hold any locks needed by NS_DescribeCodeAddress, so
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// this class does not need to do anything.
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struct CodeAddressServiceLock MOZ_FINAL
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{
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static void Unlock() {}
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static void Lock() {}
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static bool IsLocked() { return true; }
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};
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typedef mozilla::CodeAddressService<CodeAddressServiceStringTable,
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CodeAddressServiceStringAlloc,
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CodeAddressServiceLock> WalkTheStackCodeAddressService;
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mozilla::StaticAutoPtr<WalkTheStackCodeAddressService> gCodeAddressService;
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#endif // MOZ_STACKWALKING
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////////////////////////////////////////////////////////////////////////////////
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class BloatEntry
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{
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public:
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BloatEntry(const char* aClassName, uint32_t aClassSize)
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: mClassSize(aClassSize)
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{
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mClassName = PL_strdup(aClassName);
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Clear(&mNewStats);
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Clear(&mAllStats);
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mTotalLeaked = 0;
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}
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~BloatEntry()
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{
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PL_strfree(mClassName);
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}
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uint32_t GetClassSize()
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{
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return (uint32_t)mClassSize;
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}
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const char* GetClassName()
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{
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return mClassName;
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}
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static void Clear(nsTraceRefcntStats* aStats)
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{
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aStats->mAddRefs = 0;
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aStats->mReleases = 0;
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aStats->mCreates = 0;
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aStats->mDestroys = 0;
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aStats->mRefsOutstandingTotal = 0;
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aStats->mRefsOutstandingSquared = 0;
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aStats->mObjsOutstandingTotal = 0;
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aStats->mObjsOutstandingSquared = 0;
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}
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void Accumulate()
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{
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mAllStats.mAddRefs += mNewStats.mAddRefs;
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mAllStats.mReleases += mNewStats.mReleases;
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mAllStats.mCreates += mNewStats.mCreates;
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mAllStats.mDestroys += mNewStats.mDestroys;
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mAllStats.mRefsOutstandingTotal += mNewStats.mRefsOutstandingTotal;
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mAllStats.mRefsOutstandingSquared += mNewStats.mRefsOutstandingSquared;
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mAllStats.mObjsOutstandingTotal += mNewStats.mObjsOutstandingTotal;
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mAllStats.mObjsOutstandingSquared += mNewStats.mObjsOutstandingSquared;
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Clear(&mNewStats);
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}
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void AddRef(nsrefcnt aRefcnt)
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{
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mNewStats.mAddRefs++;
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if (aRefcnt == 1) {
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Ctor();
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}
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AccountRefs();
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}
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void Release(nsrefcnt aRefcnt)
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{
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mNewStats.mReleases++;
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if (aRefcnt == 0) {
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Dtor();
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}
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AccountRefs();
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}
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void Ctor()
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{
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mNewStats.mCreates++;
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AccountObjs();
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}
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void Dtor()
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{
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mNewStats.mDestroys++;
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AccountObjs();
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}
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void AccountRefs()
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{
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uint64_t cnt = (mNewStats.mAddRefs - mNewStats.mReleases);
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mNewStats.mRefsOutstandingTotal += cnt;
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mNewStats.mRefsOutstandingSquared += cnt * cnt;
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}
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void AccountObjs()
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{
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uint64_t cnt = (mNewStats.mCreates - mNewStats.mDestroys);
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mNewStats.mObjsOutstandingTotal += cnt;
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mNewStats.mObjsOutstandingSquared += cnt * cnt;
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}
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static int DumpEntry(PLHashEntry* aHashEntry, int aIndex, void* aArg)
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{
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BloatEntry* entry = (BloatEntry*)aHashEntry->value;
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if (entry) {
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entry->Accumulate();
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static_cast<nsTArray<BloatEntry*>*>(aArg)->AppendElement(entry);
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}
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return HT_ENUMERATE_NEXT;
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}
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static int TotalEntries(PLHashEntry* aHashEntry, int aIndex, void* aArg)
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{
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BloatEntry* entry = (BloatEntry*)aHashEntry->value;
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if (entry && nsCRT::strcmp(entry->mClassName, "TOTAL") != 0) {
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entry->Total((BloatEntry*)aArg);
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}
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return HT_ENUMERATE_NEXT;
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}
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void Total(BloatEntry* aTotal)
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{
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aTotal->mAllStats.mAddRefs += mNewStats.mAddRefs + mAllStats.mAddRefs;
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aTotal->mAllStats.mReleases += mNewStats.mReleases + mAllStats.mReleases;
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aTotal->mAllStats.mCreates += mNewStats.mCreates + mAllStats.mCreates;
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aTotal->mAllStats.mDestroys += mNewStats.mDestroys + mAllStats.mDestroys;
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aTotal->mAllStats.mRefsOutstandingTotal +=
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mNewStats.mRefsOutstandingTotal + mAllStats.mRefsOutstandingTotal;
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aTotal->mAllStats.mRefsOutstandingSquared +=
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mNewStats.mRefsOutstandingSquared + mAllStats.mRefsOutstandingSquared;
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aTotal->mAllStats.mObjsOutstandingTotal +=
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mNewStats.mObjsOutstandingTotal + mAllStats.mObjsOutstandingTotal;
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aTotal->mAllStats.mObjsOutstandingSquared +=
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mNewStats.mObjsOutstandingSquared + mAllStats.mObjsOutstandingSquared;
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uint64_t count = (mNewStats.mCreates + mAllStats.mCreates);
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aTotal->mClassSize += mClassSize * count; // adjust for average in DumpTotal
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aTotal->mTotalLeaked += (uint64_t)(mClassSize *
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((mNewStats.mCreates + mAllStats.mCreates)
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- (mNewStats.mDestroys + mAllStats.mDestroys)));
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}
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void DumpTotal(FILE* aOut)
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{
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mClassSize /= mAllStats.mCreates;
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Dump(-1, aOut, nsTraceRefcnt::ALL_STATS);
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}
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static bool HaveLeaks(nsTraceRefcntStats* aStats)
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{
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return ((aStats->mAddRefs != aStats->mReleases) ||
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(aStats->mCreates != aStats->mDestroys));
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}
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bool PrintDumpHeader(FILE* aOut, const char* aMsg,
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nsTraceRefcnt::StatisticsType aType)
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{
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fprintf(aOut, "\n== BloatView: %s, %s process %d\n", aMsg,
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XRE_ChildProcessTypeToString(XRE_GetProcessType()), getpid());
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nsTraceRefcntStats& stats =
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(aType == nsTraceRefcnt::NEW_STATS) ? mNewStats : mAllStats;
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if (gLogLeaksOnly && !HaveLeaks(&stats)) {
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return false;
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}
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fprintf(aOut,
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"\n" \
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" |<----------------Class--------------->|<-----Bytes------>|<----------------Objects---------------->|<--------------References-------------->|\n" \
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" Per-Inst Leaked Total Rem Mean StdDev Total Rem Mean StdDev\n");
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this->DumpTotal(aOut);
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return true;
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}
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void Dump(int aIndex, FILE* aOut, nsTraceRefcnt::StatisticsType aType)
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{
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nsTraceRefcntStats* stats =
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(aType == nsTraceRefcnt::NEW_STATS) ? &mNewStats : &mAllStats;
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if (gLogLeaksOnly && !HaveLeaks(stats)) {
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return;
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}
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double meanRefs;
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double stddevRefs;
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NS_MeanAndStdDev(stats->mAddRefs + stats->mReleases,
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stats->mRefsOutstandingTotal,
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stats->mRefsOutstandingSquared,
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&meanRefs, &stddevRefs);
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double meanObjs;
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double stddevObjs;
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NS_MeanAndStdDev(stats->mCreates + stats->mDestroys,
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stats->mObjsOutstandingTotal,
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stats->mObjsOutstandingSquared,
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&meanObjs, &stddevObjs);
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if ((stats->mAddRefs - stats->mReleases) != 0 ||
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stats->mAddRefs != 0 ||
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meanRefs != 0 ||
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stddevRefs != 0 ||
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(stats->mCreates - stats->mDestroys) != 0 ||
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stats->mCreates != 0 ||
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meanObjs != 0 ||
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stddevObjs != 0) {
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fprintf(aOut, "%4d %-40.40s %8d %8" PRIu64 " %8" PRIu64 " %8" PRIu64 " (%8.2f +/- %8.2f) %8" PRIu64 " %8" PRIu64 " (%8.2f +/- %8.2f)\n",
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aIndex + 1, mClassName,
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(int32_t)mClassSize,
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(nsCRT::strcmp(mClassName, "TOTAL"))
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? (uint64_t)((stats->mCreates - stats->mDestroys) * mClassSize)
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: mTotalLeaked,
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stats->mCreates,
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(stats->mCreates - stats->mDestroys),
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meanObjs,
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stddevObjs,
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stats->mAddRefs,
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(stats->mAddRefs - stats->mReleases),
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meanRefs,
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stddevRefs);
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}
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}
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protected:
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char* mClassName;
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double mClassSize; // this is stored as a double because of the way we compute the avg class size for total bloat
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uint64_t mTotalLeaked; // used only for TOTAL entry
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nsTraceRefcntStats mNewStats;
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nsTraceRefcntStats mAllStats;
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};
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static void
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BloatViewFreeEntry(void* aPool, PLHashEntry* aHashEntry, unsigned aFlag)
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{
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if (aFlag == HT_FREE_ENTRY) {
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BloatEntry* entry = reinterpret_cast<BloatEntry*>(aHashEntry->value);
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delete entry;
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PR_Free(aHashEntry);
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}
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}
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const static PLHashAllocOps bloatViewHashAllocOps = {
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DefaultAllocTable, DefaultFreeTable,
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DefaultAllocEntry, BloatViewFreeEntry
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};
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static void
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RecreateBloatView()
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{
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gBloatView = PL_NewHashTable(256,
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PL_HashString,
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PL_CompareStrings,
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PL_CompareValues,
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&bloatViewHashAllocOps, nullptr);
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}
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static BloatEntry*
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GetBloatEntry(const char* aTypeName, uint32_t aInstanceSize)
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{
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if (!gBloatView) {
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RecreateBloatView();
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}
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BloatEntry* entry = nullptr;
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if (gBloatView) {
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entry = (BloatEntry*)PL_HashTableLookup(gBloatView, aTypeName);
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if (!entry && aInstanceSize > 0) {
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entry = new BloatEntry(aTypeName, aInstanceSize);
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PLHashEntry* e = PL_HashTableAdd(gBloatView, aTypeName, entry);
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if (!e) {
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delete entry;
|
|
entry = nullptr;
|
|
}
|
|
} else {
|
|
NS_ASSERTION(aInstanceSize == 0 ||
|
|
entry->GetClassSize() == aInstanceSize,
|
|
"bad size recorded");
|
|
}
|
|
}
|
|
return entry;
|
|
}
|
|
|
|
static int
|
|
DumpSerialNumbers(PLHashEntry* aHashEntry, int aIndex, void* aClosure)
|
|
{
|
|
serialNumberRecord* record =
|
|
reinterpret_cast<serialNumberRecord*>(aHashEntry->value);
|
|
#ifdef HAVE_CPP_DYNAMIC_CAST_TO_VOID_PTR
|
|
fprintf((FILE*)aClosure, "%" PRIdPTR
|
|
" @%p (%d references; %d from COMPtrs)\n",
|
|
record->serialNumber,
|
|
NS_INT32_TO_PTR(aHashEntry->key),
|
|
record->refCount,
|
|
record->COMPtrCount);
|
|
#else
|
|
fprintf((FILE*)aClosure, "%" PRIdPTR
|
|
" @%p (%d references)\n",
|
|
record->serialNumber,
|
|
NS_INT32_TO_PTR(aHashEntry->key),
|
|
record->refCount);
|
|
#endif
|
|
return HT_ENUMERATE_NEXT;
|
|
}
|
|
|
|
|
|
template<>
|
|
class nsDefaultComparator<BloatEntry*, BloatEntry*>
|
|
{
|
|
public:
|
|
bool Equals(BloatEntry* const& aEntry1, BloatEntry* const& aEntry2) const
|
|
{
|
|
return PL_strcmp(aEntry1->GetClassName(), aEntry2->GetClassName()) == 0;
|
|
}
|
|
bool LessThan(BloatEntry* const& aEntry1, BloatEntry* const& aEntry2) const
|
|
{
|
|
return PL_strcmp(aEntry1->GetClassName(), aEntry2->GetClassName()) < 0;
|
|
}
|
|
};
|
|
|
|
#endif /* NS_IMPL_REFCNT_LOGGING */
|
|
|
|
nsresult
|
|
nsTraceRefcnt::DumpStatistics(StatisticsType aType, FILE* aOut)
|
|
{
|
|
#ifdef NS_IMPL_REFCNT_LOGGING
|
|
if (!gBloatLog || !gBloatView) {
|
|
return NS_ERROR_FAILURE;
|
|
}
|
|
if (!aOut) {
|
|
aOut = gBloatLog;
|
|
}
|
|
|
|
LOCK_TRACELOG();
|
|
|
|
bool wasLogging = gLogging;
|
|
gLogging = false; // turn off logging for this method
|
|
|
|
BloatEntry total("TOTAL", 0);
|
|
PL_HashTableEnumerateEntries(gBloatView, BloatEntry::TotalEntries, &total);
|
|
const char* msg;
|
|
if (aType == NEW_STATS) {
|
|
if (gLogLeaksOnly) {
|
|
msg = "NEW (incremental) LEAK STATISTICS";
|
|
} else {
|
|
msg = "NEW (incremental) LEAK AND BLOAT STATISTICS";
|
|
}
|
|
} else {
|
|
if (gLogLeaksOnly) {
|
|
msg = "ALL (cumulative) LEAK STATISTICS";
|
|
} else {
|
|
msg = "ALL (cumulative) LEAK AND BLOAT STATISTICS";
|
|
}
|
|
}
|
|
const bool leaked = total.PrintDumpHeader(aOut, msg, aType);
|
|
|
|
nsTArray<BloatEntry*> entries;
|
|
PL_HashTableEnumerateEntries(gBloatView, BloatEntry::DumpEntry, &entries);
|
|
const uint32_t count = entries.Length();
|
|
|
|
if (!gLogLeaksOnly || leaked) {
|
|
// Sort the entries alphabetically by classname.
|
|
entries.Sort();
|
|
|
|
for (uint32_t i = 0; i < count; ++i) {
|
|
BloatEntry* entry = entries[i];
|
|
entry->Dump(i, aOut, aType);
|
|
}
|
|
|
|
fprintf(aOut, "\n");
|
|
}
|
|
|
|
fprintf(aOut, "nsTraceRefcnt::DumpStatistics: %d entries\n", count);
|
|
|
|
if (gSerialNumbers) {
|
|
fprintf(aOut, "\nSerial Numbers of Leaked Objects:\n");
|
|
PL_HashTableEnumerateEntries(gSerialNumbers, DumpSerialNumbers, aOut);
|
|
}
|
|
|
|
gLogging = wasLogging;
|
|
UNLOCK_TRACELOG();
|
|
#endif
|
|
|
|
return NS_OK;
|
|
}
|
|
|
|
void
|
|
nsTraceRefcnt::ResetStatistics()
|
|
{
|
|
#ifdef NS_IMPL_REFCNT_LOGGING
|
|
LOCK_TRACELOG();
|
|
if (gBloatView) {
|
|
PL_HashTableDestroy(gBloatView);
|
|
gBloatView = nullptr;
|
|
}
|
|
UNLOCK_TRACELOG();
|
|
#endif
|
|
}
|
|
|
|
#ifdef NS_IMPL_REFCNT_LOGGING
|
|
static bool
|
|
LogThisType(const char* aTypeName)
|
|
{
|
|
void* he = PL_HashTableLookup(gTypesToLog, aTypeName);
|
|
return he != nullptr;
|
|
}
|
|
|
|
static PLHashNumber
|
|
HashNumber(const void* aKey)
|
|
{
|
|
return PLHashNumber(NS_PTR_TO_INT32(aKey));
|
|
}
|
|
|
|
static intptr_t
|
|
GetSerialNumber(void* aPtr, bool aCreate)
|
|
{
|
|
PLHashEntry** hep = PL_HashTableRawLookup(gSerialNumbers,
|
|
HashNumber(aPtr),
|
|
aPtr);
|
|
if (hep && *hep) {
|
|
return reinterpret_cast<serialNumberRecord*>((*hep)->value)->serialNumber;
|
|
} else if (aCreate) {
|
|
serialNumberRecord* record = PR_NEW(serialNumberRecord);
|
|
record->serialNumber = ++gNextSerialNumber;
|
|
record->refCount = 0;
|
|
record->COMPtrCount = 0;
|
|
PL_HashTableRawAdd(gSerialNumbers, hep, HashNumber(aPtr),
|
|
aPtr, reinterpret_cast<void*>(record));
|
|
return gNextSerialNumber;
|
|
}
|
|
return 0;
|
|
}
|
|
|
|
static int32_t*
|
|
GetRefCount(void* aPtr)
|
|
{
|
|
PLHashEntry** hep = PL_HashTableRawLookup(gSerialNumbers,
|
|
HashNumber(aPtr),
|
|
aPtr);
|
|
if (hep && *hep) {
|
|
return &((reinterpret_cast<serialNumberRecord*>((*hep)->value))->refCount);
|
|
} else {
|
|
return nullptr;
|
|
}
|
|
}
|
|
|
|
#if defined(NS_IMPL_REFCNT_LOGGING) && defined(HAVE_CPP_DYNAMIC_CAST_TO_VOID_PTR)
|
|
static int32_t*
|
|
GetCOMPtrCount(void* aPtr)
|
|
{
|
|
PLHashEntry** hep = PL_HashTableRawLookup(gSerialNumbers,
|
|
HashNumber(aPtr),
|
|
aPtr);
|
|
if (hep && *hep) {
|
|
return &((reinterpret_cast<serialNumberRecord*>((*hep)->value))->COMPtrCount);
|
|
}
|
|
return nullptr;
|
|
}
|
|
#endif
|
|
|
|
static void
|
|
RecycleSerialNumberPtr(void* aPtr)
|
|
{
|
|
PL_HashTableRemove(gSerialNumbers, aPtr);
|
|
}
|
|
|
|
static bool
|
|
LogThisObj(intptr_t aSerialNumber)
|
|
{
|
|
return (bool)PL_HashTableLookup(gObjectsToLog, (const void*)aSerialNumber);
|
|
}
|
|
|
|
#ifdef XP_WIN
|
|
#define FOPEN_NO_INHERIT "N"
|
|
#else
|
|
#define FOPEN_NO_INHERIT
|
|
#endif
|
|
|
|
static bool
|
|
InitLog(const char* aEnvVar, const char* aMsg, FILE** aResult)
|
|
{
|
|
const char* value = getenv(aEnvVar);
|
|
if (value) {
|
|
if (nsCRT::strcmp(value, "1") == 0) {
|
|
*aResult = stdout;
|
|
fprintf(stdout, "### %s defined -- logging %s to stdout\n",
|
|
aEnvVar, aMsg);
|
|
return true;
|
|
} else if (nsCRT::strcmp(value, "2") == 0) {
|
|
*aResult = stderr;
|
|
fprintf(stdout, "### %s defined -- logging %s to stderr\n",
|
|
aEnvVar, aMsg);
|
|
return true;
|
|
} else {
|
|
FILE* stream;
|
|
nsAutoCString fname(value);
|
|
if (XRE_GetProcessType() != GeckoProcessType_Default) {
|
|
bool hasLogExtension =
|
|
fname.RFind(".log", true, -1, 4) == kNotFound ? false : true;
|
|
if (hasLogExtension) {
|
|
fname.Cut(fname.Length() - 4, 4);
|
|
}
|
|
fname.Append('_');
|
|
fname.Append((char*)XRE_ChildProcessTypeToString(XRE_GetProcessType()));
|
|
fname.AppendLiteral("_pid");
|
|
fname.AppendInt((uint32_t)getpid());
|
|
if (hasLogExtension) {
|
|
fname.AppendLiteral(".log");
|
|
}
|
|
}
|
|
stream = ::fopen(fname.get(), "w" FOPEN_NO_INHERIT);
|
|
if (stream) {
|
|
MozillaRegisterDebugFD(fileno(stream));
|
|
*aResult = stream;
|
|
fprintf(stdout, "### %s defined -- logging %s to %s\n",
|
|
aEnvVar, aMsg, fname.get());
|
|
} else {
|
|
fprintf(stdout, "### %s defined -- unable to log %s to %s\n",
|
|
aEnvVar, aMsg, fname.get());
|
|
}
|
|
return stream != nullptr;
|
|
}
|
|
}
|
|
return false;
|
|
}
|
|
|
|
|
|
static void
|
|
maybeUnregisterAndCloseFile(FILE*& aFile)
|
|
{
|
|
if (!aFile) {
|
|
return;
|
|
}
|
|
|
|
MozillaUnRegisterDebugFILE(aFile);
|
|
fclose(aFile);
|
|
aFile = nullptr;
|
|
}
|
|
|
|
|
|
static void
|
|
InitTraceLog()
|
|
{
|
|
if (gInitialized) {
|
|
return;
|
|
}
|
|
gInitialized = true;
|
|
|
|
bool defined = InitLog("XPCOM_MEM_BLOAT_LOG", "bloat/leaks", &gBloatLog);
|
|
if (!defined) {
|
|
gLogLeaksOnly = InitLog("XPCOM_MEM_LEAK_LOG", "leaks", &gBloatLog);
|
|
}
|
|
if (defined || gLogLeaksOnly) {
|
|
RecreateBloatView();
|
|
if (!gBloatView) {
|
|
NS_WARNING("out of memory");
|
|
maybeUnregisterAndCloseFile(gBloatLog);
|
|
gLogLeaksOnly = false;
|
|
}
|
|
}
|
|
|
|
InitLog("XPCOM_MEM_REFCNT_LOG", "refcounts", &gRefcntsLog);
|
|
|
|
InitLog("XPCOM_MEM_ALLOC_LOG", "new/delete", &gAllocLog);
|
|
|
|
const char* classes = getenv("XPCOM_MEM_LOG_CLASSES");
|
|
|
|
#ifdef HAVE_CPP_DYNAMIC_CAST_TO_VOID_PTR
|
|
if (classes) {
|
|
InitLog("XPCOM_MEM_COMPTR_LOG", "nsCOMPtr", &gCOMPtrLog);
|
|
} else {
|
|
if (getenv("XPCOM_MEM_COMPTR_LOG")) {
|
|
fprintf(stdout, "### XPCOM_MEM_COMPTR_LOG defined -- but XPCOM_MEM_LOG_CLASSES is not defined\n");
|
|
}
|
|
}
|
|
#else
|
|
const char* comptr_log = getenv("XPCOM_MEM_COMPTR_LOG");
|
|
if (comptr_log) {
|
|
fprintf(stdout, "### XPCOM_MEM_COMPTR_LOG defined -- but it will not work without dynamic_cast\n");
|
|
}
|
|
#endif
|
|
|
|
if (classes) {
|
|
// if XPCOM_MEM_LOG_CLASSES was set to some value, the value is interpreted
|
|
// as a list of class names to track
|
|
gTypesToLog = PL_NewHashTable(256,
|
|
PL_HashString,
|
|
PL_CompareStrings,
|
|
PL_CompareValues,
|
|
&typesToLogHashAllocOps, nullptr);
|
|
if (!gTypesToLog) {
|
|
NS_WARNING("out of memory");
|
|
fprintf(stdout, "### XPCOM_MEM_LOG_CLASSES defined -- unable to log specific classes\n");
|
|
} else {
|
|
fprintf(stdout, "### XPCOM_MEM_LOG_CLASSES defined -- only logging these classes: ");
|
|
const char* cp = classes;
|
|
for (;;) {
|
|
char* cm = (char*)strchr(cp, ',');
|
|
if (cm) {
|
|
*cm = '\0';
|
|
}
|
|
PL_HashTableAdd(gTypesToLog, strdup(cp), (void*)1);
|
|
fprintf(stdout, "%s ", cp);
|
|
if (!cm) {
|
|
break;
|
|
}
|
|
*cm = ',';
|
|
cp = cm + 1;
|
|
}
|
|
fprintf(stdout, "\n");
|
|
}
|
|
|
|
gSerialNumbers = PL_NewHashTable(256,
|
|
HashNumber,
|
|
PL_CompareValues,
|
|
PL_CompareValues,
|
|
&serialNumberHashAllocOps, nullptr);
|
|
|
|
|
|
}
|
|
|
|
const char* objects = getenv("XPCOM_MEM_LOG_OBJECTS");
|
|
if (objects) {
|
|
gObjectsToLog = PL_NewHashTable(256,
|
|
HashNumber,
|
|
PL_CompareValues,
|
|
PL_CompareValues,
|
|
nullptr, nullptr);
|
|
|
|
if (!gObjectsToLog) {
|
|
NS_WARNING("out of memory");
|
|
fprintf(stdout, "### XPCOM_MEM_LOG_OBJECTS defined -- unable to log specific objects\n");
|
|
} else if (!(gRefcntsLog || gAllocLog || gCOMPtrLog)) {
|
|
fprintf(stdout, "### XPCOM_MEM_LOG_OBJECTS defined -- but none of XPCOM_MEM_(REFCNT|ALLOC|COMPTR)_LOG is defined\n");
|
|
} else {
|
|
fprintf(stdout, "### XPCOM_MEM_LOG_OBJECTS defined -- only logging these objects: ");
|
|
const char* cp = objects;
|
|
for (;;) {
|
|
char* cm = (char*)strchr(cp, ',');
|
|
if (cm) {
|
|
*cm = '\0';
|
|
}
|
|
intptr_t top = 0;
|
|
intptr_t bottom = 0;
|
|
while (*cp) {
|
|
if (*cp == '-') {
|
|
bottom = top;
|
|
top = 0;
|
|
++cp;
|
|
}
|
|
top *= 10;
|
|
top += *cp - '0';
|
|
++cp;
|
|
}
|
|
if (!bottom) {
|
|
bottom = top;
|
|
}
|
|
for (intptr_t serialno = bottom; serialno <= top; serialno++) {
|
|
PL_HashTableAdd(gObjectsToLog, (const void*)serialno, (void*)1);
|
|
fprintf(stdout, "%" PRIdPTR " ", serialno);
|
|
}
|
|
if (!cm) {
|
|
break;
|
|
}
|
|
*cm = ',';
|
|
cp = cm + 1;
|
|
}
|
|
fprintf(stdout, "\n");
|
|
}
|
|
}
|
|
|
|
|
|
if (gBloatLog || gRefcntsLog || gAllocLog || gCOMPtrLog) {
|
|
gLogging = true;
|
|
}
|
|
|
|
gTraceLock = PR_NewLock();
|
|
}
|
|
|
|
#endif
|
|
|
|
extern "C" {
|
|
|
|
#ifdef MOZ_STACKWALKING
|
|
static void
|
|
PrintStackFrame(uint32_t aFrameNumber, void* aPC, void* aSP, void* aClosure)
|
|
{
|
|
FILE* stream = (FILE*)aClosure;
|
|
nsCodeAddressDetails details;
|
|
char buf[1024];
|
|
|
|
NS_DescribeCodeAddress(aPC, &details);
|
|
NS_FormatCodeAddressDetails(buf, sizeof(buf), aFrameNumber, aPC, &details);
|
|
fprintf(stream, "%s\n", buf);
|
|
fflush(stream);
|
|
}
|
|
|
|
static void
|
|
PrintStackFrameCached(uint32_t aFrameNumber, void* aPC, void* aSP,
|
|
void* aClosure)
|
|
{
|
|
auto stream = static_cast<FILE*>(aClosure);
|
|
static const size_t buflen = 1024;
|
|
char buf[buflen];
|
|
gCodeAddressService->GetLocation(aFrameNumber, aPC, buf, buflen);
|
|
fprintf(stream, " %s\n", buf);
|
|
fflush(stream);
|
|
}
|
|
#endif
|
|
|
|
}
|
|
|
|
void
|
|
nsTraceRefcnt::WalkTheStack(FILE* aStream)
|
|
{
|
|
#ifdef MOZ_STACKWALKING
|
|
NS_StackWalk(PrintStackFrame, /* skipFrames */ 2, /* maxFrames */ 0, aStream,
|
|
0, nullptr);
|
|
#endif
|
|
}
|
|
|
|
void
|
|
nsTraceRefcnt::WalkTheStackCached(FILE* aStream)
|
|
{
|
|
#ifdef MOZ_STACKWALKING
|
|
if (!gCodeAddressService) {
|
|
gCodeAddressService = new WalkTheStackCodeAddressService();
|
|
}
|
|
NS_StackWalk(PrintStackFrameCached, /* skipFrames */ 2, /* maxFrames */ 0,
|
|
aStream, 0, nullptr);
|
|
#endif
|
|
}
|
|
|
|
//----------------------------------------------------------------------
|
|
|
|
// This thing is exported by libstdc++
|
|
// Yes, this is a gcc only hack
|
|
#if defined(MOZ_DEMANGLE_SYMBOLS)
|
|
#include <cxxabi.h>
|
|
#include <stdlib.h> // for free()
|
|
#endif // MOZ_DEMANGLE_SYMBOLS
|
|
|
|
void
|
|
nsTraceRefcnt::DemangleSymbol(const char* aSymbol,
|
|
char* aBuffer,
|
|
int aBufLen)
|
|
{
|
|
NS_ASSERTION(aSymbol, "null symbol");
|
|
NS_ASSERTION(aBuffer, "null buffer");
|
|
NS_ASSERTION(aBufLen >= 32 , "pulled 32 out of you know where");
|
|
|
|
aBuffer[0] = '\0';
|
|
|
|
#if defined(MOZ_DEMANGLE_SYMBOLS)
|
|
/* See demangle.h in the gcc source for the voodoo */
|
|
char* demangled = abi::__cxa_demangle(aSymbol, 0, 0, 0);
|
|
|
|
if (demangled) {
|
|
strncpy(aBuffer, demangled, aBufLen);
|
|
free(demangled);
|
|
}
|
|
#endif // MOZ_DEMANGLE_SYMBOLS
|
|
}
|
|
|
|
|
|
//----------------------------------------------------------------------
|
|
|
|
EXPORT_XPCOM_API(void)
|
|
NS_LogInit()
|
|
{
|
|
NS_SetMainThread();
|
|
|
|
// FIXME: This is called multiple times, we should probably not allow that.
|
|
#ifdef MOZ_STACKWALKING
|
|
StackWalkInitCriticalAddress();
|
|
#endif
|
|
#ifdef NS_IMPL_REFCNT_LOGGING
|
|
if (++gInitCount) {
|
|
nsTraceRefcnt::SetActivityIsLegal(true);
|
|
}
|
|
#endif
|
|
}
|
|
|
|
EXPORT_XPCOM_API(void)
|
|
NS_LogTerm()
|
|
{
|
|
mozilla::LogTerm();
|
|
}
|
|
|
|
namespace mozilla {
|
|
void
|
|
LogTerm()
|
|
{
|
|
NS_ASSERTION(gInitCount > 0,
|
|
"NS_LogTerm without matching NS_LogInit");
|
|
|
|
if (--gInitCount == 0) {
|
|
#ifdef DEBUG
|
|
/* FIXME bug 491977: This is only going to operate on the
|
|
* BlockingResourceBase which is compiled into
|
|
* libxul/libxpcom_core.so. Anyone using external linkage will
|
|
* have their own copy of BlockingResourceBase statics which will
|
|
* not be freed by this method.
|
|
*
|
|
* It sounds like what we really want is to be able to register a
|
|
* callback function to call at XPCOM shutdown. Note that with
|
|
* this solution, however, we need to guarantee that
|
|
* BlockingResourceBase::Shutdown() runs after all other shutdown
|
|
* functions.
|
|
*/
|
|
BlockingResourceBase::Shutdown();
|
|
#endif
|
|
|
|
if (gInitialized) {
|
|
nsTraceRefcnt::DumpStatistics();
|
|
nsTraceRefcnt::ResetStatistics();
|
|
}
|
|
nsTraceRefcnt::Shutdown();
|
|
#ifdef NS_IMPL_REFCNT_LOGGING
|
|
nsTraceRefcnt::SetActivityIsLegal(false);
|
|
gActivityTLS = BAD_TLS_INDEX;
|
|
#endif
|
|
}
|
|
}
|
|
|
|
} // namespace mozilla
|
|
|
|
EXPORT_XPCOM_API(void)
|
|
NS_LogAddRef(void* aPtr, nsrefcnt aRefcnt,
|
|
const char* aClass, uint32_t aClassSize)
|
|
{
|
|
#ifdef NS_IMPL_REFCNT_LOGGING
|
|
ASSERT_ACTIVITY_IS_LEGAL;
|
|
if (!gInitialized) {
|
|
InitTraceLog();
|
|
}
|
|
if (gLogging) {
|
|
LOCK_TRACELOG();
|
|
|
|
if (gBloatLog) {
|
|
BloatEntry* entry = GetBloatEntry(aClass, aClassSize);
|
|
if (entry) {
|
|
entry->AddRef(aRefcnt);
|
|
}
|
|
}
|
|
|
|
// Here's the case where MOZ_COUNT_CTOR was not used,
|
|
// yet we still want to see creation information:
|
|
|
|
bool loggingThisType = (!gTypesToLog || LogThisType(aClass));
|
|
intptr_t serialno = 0;
|
|
if (gSerialNumbers && loggingThisType) {
|
|
serialno = GetSerialNumber(aPtr, aRefcnt == 1);
|
|
NS_ASSERTION(serialno != 0,
|
|
"Serial number requested for unrecognized pointer! "
|
|
"Are you memmoving a refcounted object?");
|
|
int32_t* count = GetRefCount(aPtr);
|
|
if (count) {
|
|
(*count)++;
|
|
}
|
|
|
|
}
|
|
|
|
bool loggingThisObject = (!gObjectsToLog || LogThisObj(serialno));
|
|
if (aRefcnt == 1 && gAllocLog && loggingThisType && loggingThisObject) {
|
|
fprintf(gAllocLog, "\n<%s> %p %" PRIdPTR " Create\n", aClass, aPtr, serialno);
|
|
nsTraceRefcnt::WalkTheStackCached(gAllocLog);
|
|
}
|
|
|
|
if (gRefcntsLog && loggingThisType && loggingThisObject) {
|
|
// Can't use PR_LOG(), b/c it truncates the line
|
|
fprintf(gRefcntsLog, "\n<%s> %p %" PRIuPTR " AddRef %" PRIuPTR "\n",
|
|
aClass, aPtr, serialno, aRefcnt);
|
|
nsTraceRefcnt::WalkTheStackCached(gRefcntsLog);
|
|
fflush(gRefcntsLog);
|
|
}
|
|
UNLOCK_TRACELOG();
|
|
}
|
|
#endif
|
|
}
|
|
|
|
EXPORT_XPCOM_API(void)
|
|
NS_LogRelease(void* aPtr, nsrefcnt aRefcnt, const char* aClass)
|
|
{
|
|
#ifdef NS_IMPL_REFCNT_LOGGING
|
|
ASSERT_ACTIVITY_IS_LEGAL;
|
|
if (!gInitialized) {
|
|
InitTraceLog();
|
|
}
|
|
if (gLogging) {
|
|
LOCK_TRACELOG();
|
|
|
|
if (gBloatLog) {
|
|
BloatEntry* entry = GetBloatEntry(aClass, 0);
|
|
if (entry) {
|
|
entry->Release(aRefcnt);
|
|
}
|
|
}
|
|
|
|
bool loggingThisType = (!gTypesToLog || LogThisType(aClass));
|
|
intptr_t serialno = 0;
|
|
if (gSerialNumbers && loggingThisType) {
|
|
serialno = GetSerialNumber(aPtr, false);
|
|
NS_ASSERTION(serialno != 0,
|
|
"Serial number requested for unrecognized pointer! "
|
|
"Are you memmoving a refcounted object?");
|
|
int32_t* count = GetRefCount(aPtr);
|
|
if (count) {
|
|
(*count)--;
|
|
}
|
|
|
|
}
|
|
|
|
bool loggingThisObject = (!gObjectsToLog || LogThisObj(serialno));
|
|
if (gRefcntsLog && loggingThisType && loggingThisObject) {
|
|
// Can't use PR_LOG(), b/c it truncates the line
|
|
fprintf(gRefcntsLog,
|
|
"\n<%s> %p %" PRIuPTR " Release %" PRIuPTR "\n",
|
|
aClass, aPtr, serialno, aRefcnt);
|
|
nsTraceRefcnt::WalkTheStackCached(gRefcntsLog);
|
|
fflush(gRefcntsLog);
|
|
}
|
|
|
|
// Here's the case where MOZ_COUNT_DTOR was not used,
|
|
// yet we still want to see deletion information:
|
|
|
|
if (aRefcnt == 0 && gAllocLog && loggingThisType && loggingThisObject) {
|
|
fprintf(gAllocLog, "\n<%s> %p %" PRIdPTR " Destroy\n", aClass, aPtr, serialno);
|
|
nsTraceRefcnt::WalkTheStackCached(gAllocLog);
|
|
}
|
|
|
|
if (aRefcnt == 0 && gSerialNumbers && loggingThisType) {
|
|
RecycleSerialNumberPtr(aPtr);
|
|
}
|
|
|
|
UNLOCK_TRACELOG();
|
|
}
|
|
#endif
|
|
}
|
|
|
|
EXPORT_XPCOM_API(void)
|
|
NS_LogCtor(void* aPtr, const char* aType, uint32_t aInstanceSize)
|
|
{
|
|
#ifdef NS_IMPL_REFCNT_LOGGING
|
|
ASSERT_ACTIVITY_IS_LEGAL;
|
|
if (!gInitialized) {
|
|
InitTraceLog();
|
|
}
|
|
|
|
if (gLogging) {
|
|
LOCK_TRACELOG();
|
|
|
|
if (gBloatLog) {
|
|
BloatEntry* entry = GetBloatEntry(aType, aInstanceSize);
|
|
if (entry) {
|
|
entry->Ctor();
|
|
}
|
|
}
|
|
|
|
bool loggingThisType = (!gTypesToLog || LogThisType(aType));
|
|
intptr_t serialno = 0;
|
|
if (gSerialNumbers && loggingThisType) {
|
|
serialno = GetSerialNumber(aPtr, true);
|
|
}
|
|
|
|
bool loggingThisObject = (!gObjectsToLog || LogThisObj(serialno));
|
|
if (gAllocLog && loggingThisType && loggingThisObject) {
|
|
fprintf(gAllocLog, "\n<%s> %p %" PRIdPTR " Ctor (%d)\n",
|
|
aType, aPtr, serialno, aInstanceSize);
|
|
nsTraceRefcnt::WalkTheStackCached(gAllocLog);
|
|
}
|
|
|
|
UNLOCK_TRACELOG();
|
|
}
|
|
#endif
|
|
}
|
|
|
|
|
|
EXPORT_XPCOM_API(void)
|
|
NS_LogDtor(void* aPtr, const char* aType, uint32_t aInstanceSize)
|
|
{
|
|
#ifdef NS_IMPL_REFCNT_LOGGING
|
|
ASSERT_ACTIVITY_IS_LEGAL;
|
|
if (!gInitialized) {
|
|
InitTraceLog();
|
|
}
|
|
|
|
if (gLogging) {
|
|
LOCK_TRACELOG();
|
|
|
|
if (gBloatLog) {
|
|
BloatEntry* entry = GetBloatEntry(aType, aInstanceSize);
|
|
if (entry) {
|
|
entry->Dtor();
|
|
}
|
|
}
|
|
|
|
bool loggingThisType = (!gTypesToLog || LogThisType(aType));
|
|
intptr_t serialno = 0;
|
|
if (gSerialNumbers && loggingThisType) {
|
|
serialno = GetSerialNumber(aPtr, false);
|
|
RecycleSerialNumberPtr(aPtr);
|
|
}
|
|
|
|
bool loggingThisObject = (!gObjectsToLog || LogThisObj(serialno));
|
|
|
|
// (If we're on a losing architecture, don't do this because we'll be
|
|
// using LogDeleteXPCOM instead to get file and line numbers.)
|
|
if (gAllocLog && loggingThisType && loggingThisObject) {
|
|
fprintf(gAllocLog, "\n<%s> %p %" PRIdPTR " Dtor (%d)\n",
|
|
aType, aPtr, serialno, aInstanceSize);
|
|
nsTraceRefcnt::WalkTheStackCached(gAllocLog);
|
|
}
|
|
|
|
UNLOCK_TRACELOG();
|
|
}
|
|
#endif
|
|
}
|
|
|
|
|
|
EXPORT_XPCOM_API(void)
|
|
NS_LogCOMPtrAddRef(void* aCOMPtr, nsISupports* aObject)
|
|
{
|
|
#if defined(NS_IMPL_REFCNT_LOGGING) && defined(HAVE_CPP_DYNAMIC_CAST_TO_VOID_PTR)
|
|
// Get the most-derived object.
|
|
void* object = dynamic_cast<void*>(aObject);
|
|
|
|
// This is a very indirect way of finding out what the class is
|
|
// of the object being logged. If we're logging a specific type,
|
|
// then
|
|
if (!gTypesToLog || !gSerialNumbers) {
|
|
return;
|
|
}
|
|
intptr_t serialno = GetSerialNumber(object, false);
|
|
if (serialno == 0) {
|
|
return;
|
|
}
|
|
|
|
if (!gInitialized) {
|
|
InitTraceLog();
|
|
}
|
|
if (gLogging) {
|
|
LOCK_TRACELOG();
|
|
|
|
int32_t* count = GetCOMPtrCount(object);
|
|
if (count) {
|
|
(*count)++;
|
|
}
|
|
|
|
bool loggingThisObject = (!gObjectsToLog || LogThisObj(serialno));
|
|
|
|
if (gCOMPtrLog && loggingThisObject) {
|
|
fprintf(gCOMPtrLog, "\n<?> %p %" PRIdPTR " nsCOMPtrAddRef %d %p\n",
|
|
object, serialno, count ? (*count) : -1, aCOMPtr);
|
|
nsTraceRefcnt::WalkTheStackCached(gCOMPtrLog);
|
|
}
|
|
|
|
UNLOCK_TRACELOG();
|
|
}
|
|
#endif
|
|
}
|
|
|
|
|
|
EXPORT_XPCOM_API(void)
|
|
NS_LogCOMPtrRelease(void* aCOMPtr, nsISupports* aObject)
|
|
{
|
|
#if defined(NS_IMPL_REFCNT_LOGGING) && defined(HAVE_CPP_DYNAMIC_CAST_TO_VOID_PTR)
|
|
// Get the most-derived object.
|
|
void* object = dynamic_cast<void*>(aObject);
|
|
|
|
// This is a very indirect way of finding out what the class is
|
|
// of the object being logged. If we're logging a specific type,
|
|
// then
|
|
if (!gTypesToLog || !gSerialNumbers) {
|
|
return;
|
|
}
|
|
intptr_t serialno = GetSerialNumber(object, false);
|
|
if (serialno == 0) {
|
|
return;
|
|
}
|
|
|
|
if (!gInitialized) {
|
|
InitTraceLog();
|
|
}
|
|
if (gLogging) {
|
|
LOCK_TRACELOG();
|
|
|
|
int32_t* count = GetCOMPtrCount(object);
|
|
if (count) {
|
|
(*count)--;
|
|
}
|
|
|
|
bool loggingThisObject = (!gObjectsToLog || LogThisObj(serialno));
|
|
|
|
if (gCOMPtrLog && loggingThisObject) {
|
|
fprintf(gCOMPtrLog, "\n<?> %p %" PRIdPTR " nsCOMPtrRelease %d %p\n",
|
|
object, serialno, count ? (*count) : -1, aCOMPtr);
|
|
nsTraceRefcnt::WalkTheStackCached(gCOMPtrLog);
|
|
}
|
|
|
|
UNLOCK_TRACELOG();
|
|
}
|
|
#endif
|
|
}
|
|
|
|
void
|
|
nsTraceRefcnt::Shutdown()
|
|
{
|
|
#ifdef NS_IMPL_REFCNT_LOGGING
|
|
#ifdef MOZ_STACKWALKING
|
|
gCodeAddressService = nullptr;
|
|
#endif
|
|
if (gBloatView) {
|
|
PL_HashTableDestroy(gBloatView);
|
|
gBloatView = nullptr;
|
|
}
|
|
if (gTypesToLog) {
|
|
PL_HashTableDestroy(gTypesToLog);
|
|
gTypesToLog = nullptr;
|
|
}
|
|
if (gObjectsToLog) {
|
|
PL_HashTableDestroy(gObjectsToLog);
|
|
gObjectsToLog = nullptr;
|
|
}
|
|
if (gSerialNumbers) {
|
|
PL_HashTableDestroy(gSerialNumbers);
|
|
gSerialNumbers = nullptr;
|
|
}
|
|
maybeUnregisterAndCloseFile(gBloatLog);
|
|
maybeUnregisterAndCloseFile(gRefcntsLog);
|
|
maybeUnregisterAndCloseFile(gAllocLog);
|
|
maybeUnregisterAndCloseFile(gCOMPtrLog);
|
|
#endif
|
|
}
|
|
|
|
void
|
|
nsTraceRefcnt::SetActivityIsLegal(bool aLegal)
|
|
{
|
|
#ifdef NS_IMPL_REFCNT_LOGGING
|
|
if (gActivityTLS == BAD_TLS_INDEX) {
|
|
PR_NewThreadPrivateIndex(&gActivityTLS, nullptr);
|
|
}
|
|
|
|
PR_SetThreadPrivate(gActivityTLS, reinterpret_cast<void*>(!aLegal));
|
|
#endif
|
|
}
|