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gem
2025-02-18 15:21:31 +08:00
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/****************************************************************************
Copyright (c) 2021-2023 Xiamen Yaji Software Co., Ltd.
http://www.cocos.com
Permission is hereby granted, free of charge, to any person obtaining a copy
of this software and associated documentation files (the "Software"), to deal
in the Software without restriction, including without limitation the rights to
use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies
of the Software, and to permit persons to whom the Software is furnished to do so,
subject to the following conditions:
The above copyright notice and this permission notice shall be included in
all copies or substantial portions of the Software.
THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
THE SOFTWARE.
****************************************************************************/
#include "CallStack.h"
#if USE_MEMORY_LEAK_DETECTOR
#if CC_PLATFORM == CC_PLATFORM_ANDROID
#define __GNU_SOURCE
#include <cxxabi.h>
#include <dlfcn.h>
#include <pthread.h>
#elif CC_PLATFORM == CC_PLATFORM_IOS || CC_PLATFORM == CC_PLATFORM_MACOS
#include <execinfo.h>
#elif CC_PLATFORM == CC_PLATFORM_WINDOWS
#include <DbgHelp.h>
#include <Windows.h>
#pragma comment(lib, "dbghelp.lib")
#endif
#include <sstream>
namespace cc {
ccstd::string StackFrame::toString() {
static ccstd::string unknown("unknown");
#if CC_PLATFORM == CC_PLATFORM_ANDROID
std::stringstream stream;
stream << "\tmodule: " << (module.empty() ? unknown : module)
<< "\tfunction: " << (function.empty() ? unknown : function);
return stream.str();
#elif CC_PLATFORM == CC_PLATFORM_IOS || CC_PLATFORM == CC_PLATFORM_MACOS
std::stringstream stream;
stream << "\tfile: " << (file.empty() ? unknown : file);
return stream.str();
#elif CC_PLATFORM == CC_PLATFORM_WINDOWS
std::stringstream stream;
stream << "\tmodule: " << (module.empty() ? unknown : module)
<< "\tfile: " << (file.empty() ? unknown : file)
<< "\tfunction: " << (function.empty() ? unknown : function)
<< "\tline: " << line;
return stream.str();
#else
return unknown;
#endif
}
#if CC_PLATFORM == CC_PLATFORM_ANDROID
struct ThreadStack {
void *stack[MAX_STACK_FRAMES];
int current;
int overflow;
};
extern "C" {
static pthread_once_t s_once = PTHREAD_ONCE_INIT;
static pthread_key_t s_threadStackKey = 0;
static void __attribute__((no_instrument_function))
init_once(void) {
pthread_key_create(&s_threadStackKey, NULL);
}
static ThreadStack *__attribute__((no_instrument_function))
getThreadStack() {
ThreadStack *ptr = (ThreadStack *)pthread_getspecific(s_threadStackKey);
if (ptr) {
return ptr;
}
ptr = (ThreadStack *)calloc(1, sizeof(ThreadStack));
ptr->current = 0;
ptr->overflow = 0;
pthread_setspecific(s_threadStackKey, ptr);
return ptr;
}
void __attribute__((no_instrument_function))
__cyg_profile_func_enter(void *this_fn, void *call_site) {
pthread_once(&s_once, init_once);
ThreadStack *ptr = getThreadStack();
if (ptr->current < MAX_STACK_FRAMES) {
ptr->stack[ptr->current++] = this_fn;
ptr->overflow = 0;
} else {
ptr->overflow++;
}
}
void __attribute__((no_instrument_function))
__cyg_profile_func_exit(void *this_fn, void *call_site) {
pthread_once(&s_once, init_once);
ThreadStack *ptr = getThreadStack();
if (ptr->overflow == 0 && ptr->current > 0) {
ptr->current--;
}
if (ptr->overflow > 0) {
ptr->overflow--;
}
}
}
#endif
ccstd::string CallStack::basename(const ccstd::string &path) {
size_t found = path.find_last_of("/\\");
if (ccstd::string::npos != found) {
return path.substr(found + 1);
} else {
return path;
}
}
ccstd::vector<void *> CallStack::backtrace() {
#if CC_PLATFORM == CC_PLATFORM_ANDROID
ccstd::vector<void *> callstack;
callstack.reserve(MAX_STACK_FRAMES);
pthread_once(&s_once, init_once);
ThreadStack *ptr = getThreadStack();
for (int i = ptr->current - 1; i >= 0; i--) {
callstack.push_back(ptr->stack[i]);
}
return callstack;
#elif CC_PLATFORM == CC_PLATFORM_IOS || CC_PLATFORM == CC_PLATFORM_MACOS
ccstd::vector<void *> callstack;
callstack.reserve(MAX_STACK_FRAMES);
void *array[MAX_STACK_FRAMES];
int count = ::backtrace(array, MAX_STACK_FRAMES);
for (auto i = 0; i < count; i++) {
callstack.push_back(array[i]);
}
return callstack;
#elif CC_PLATFORM == CC_PLATFORM_WINDOWS
ccstd::vector<void *> callstack;
callstack.reserve(MAX_STACK_FRAMES);
void *array[MAX_STACK_FRAMES];
int count = CaptureStackBackTrace(0, MAX_STACK_FRAMES, array, NULL);
for (auto i = 0; i < count; i++) {
callstack.push_back(array[i]);
}
return callstack;
#else
return {};
#endif
}
ccstd::vector<StackFrame> CallStack::backtraceSymbols(const ccstd::vector<void *> &callstack) {
#if CC_PLATFORM == CC_PLATFORM_ANDROID
ccstd::vector<StackFrame> frames;
size_t size = callstack.size();
for (size_t i = 0; i < size; i++) {
Dl_info info;
StackFrame frame;
if (dladdr(callstack[i], &info)) {
if (info.dli_fname && strlen(info.dli_fname) > 0) {
frame.module = basename(info.dli_fname);
}
if (info.dli_sname && strlen(info.dli_sname) > 0) {
char *real_name = abi::__cxa_demangle(info.dli_sname, nullptr, nullptr, nullptr);
if (real_name) {
frame.function = real_name;
free(real_name);
} else {
frame.function = info.dli_sname;
}
}
}
frames.push_back(std::move(frame));
}
return frames;
#elif CC_PLATFORM == CC_PLATFORM_IOS || CC_PLATFORM == CC_PLATFORM_MACOS
size_t size = callstack.size();
if (size == 0) {
return {};
}
ccstd::vector<StackFrame> frames;
char **strs = ::backtrace_symbols(&callstack[0], size);
for (size_t i = 0; i < size; i++) {
StackFrame frame;
frame.file = strs[i];
frames.push_back(std::move(frame));
}
return frames;
#elif CC_PLATFORM == CC_PLATFORM_WINDOWS
ccstd::vector<StackFrame> frames;
#if _WIN64
using PTR_DWORD = DWORD64;
#else
using PTR_DWORD = DWORD;
#endif
size_t size = callstack.size();
for (size_t i = 0; i < size; i++) {
StackFrame frame;
PTR_DWORD address = reinterpret_cast<PTR_DWORD>(callstack[i]);
char moduelName[MAX_PATH];
#if _WIN64
PTR_DWORD moduleBase = SymGetModuleBase64(_process, address);
#else
PTR_DWORD moduleBase = SymGetModuleBase(_process, address);
#endif
if (moduleBase && GetModuleFileNameA((HINSTANCE)moduleBase, moduelName, MAX_PATH)) {
frame.module = basename(moduelName);
}
DWORD64 offset = 0;
char symbolBuffer[sizeof(SYMBOL_INFO) + MAX_SYMBOL_LENGTH] = {0};
PSYMBOL_INFO symbol = (PSYMBOL_INFO)symbolBuffer;
symbol->SizeOfStruct = sizeof(SYMBOL_INFO);
symbol->MaxNameLen = MAX_SYMBOL_LENGTH - 1;
if (SymFromAddr(_process, address, &offset, symbol)) {
frame.function = symbol->Name;
}
IMAGEHLP_LINE line;
line.SizeOfStruct = sizeof(IMAGEHLP_LINE);
DWORD offset_ln = 0;
if (SymGetLineFromAddr(_process, address, &offset_ln, &line)) {
frame.file = line.FileName;
frame.line = line.LineNumber;
}
frames.push_back(std::move(frame));
}
return frames;
#else
return {};
#endif
}
#if CC_PLATFORM == CC_PLATFORM_WINDOWS
void CallStack::initSym() {
_process = GetCurrentProcess();
if (SymInitialize(_process, nullptr, true) == false) {
CC_ABORT();
}
SymSetOptions(SYMOPT_LOAD_LINES);
}
void CallStack::cleanupSym() {
SymCleanup(_process);
}
HANDLE CallStack::_process = 0;
#endif
} // namespace cc
#endif

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/****************************************************************************
Copyright (c) 2021-2023 Xiamen Yaji Software Co., Ltd.
http://www.cocos.com
Permission is hereby granted, free of charge, to any person obtaining a copy
of this software and associated documentation files (the "Software"), to deal
in the Software without restriction, including without limitation the rights to
use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies
of the Software, and to permit persons to whom the Software is furnished to do so,
subject to the following conditions:
The above copyright notice and this permission notice shall be included in
all copies or substantial portions of the Software.
THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
THE SOFTWARE.
****************************************************************************/
#pragma once
#include "../Config.h"
#if USE_MEMORY_LEAK_DETECTOR
#if CC_PLATFORM == CC_PLATFORM_WINDOWS
#include <Windows.h>
#endif
#include <cstdint>
#include "../Macros.h"
#include "base/std/container/string.h"
#include "base/std/container/vector.h"
namespace cc {
#define MAX_STACK_FRAMES 64
#define MAX_SYMBOL_LENGTH 255
/**
* A single frame of callstack.
*/
struct CC_DLL StackFrame {
ccstd::string module;
ccstd::string file;
ccstd::string function;
uint32_t line{0};
ccstd::string toString();
};
/**
* An utility class used to backtrace callstack.
*/
class CC_DLL CallStack {
public:
static ccstd::string basename(const ccstd::string &path);
static ccstd::vector<void *> backtrace();
static ccstd::vector<StackFrame> backtraceSymbols(const ccstd::vector<void *> &callstack);
#if CC_PLATFORM == CC_PLATFORM_WINDOWS
static void initSym();
static void cleanupSym();
private:
static HANDLE _process;
#endif
};
} // namespace cc
#endif

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cocos/base/memory/Memory.h Normal file
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/****************************************************************************
Copyright (c) 2021-2023 Xiamen Yaji Software Co., Ltd.
http://www.cocos.com
Permission is hereby granted, free of charge, to any person obtaining a copy
of this software and associated documentation files (the "Software"), to deal
in the Software without restriction, including without limitation the rights to
use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies
of the Software, and to permit persons to whom the Software is furnished to do so,
subject to the following conditions:
The above copyright notice and this permission notice shall be included in
all copies or substantial portions of the Software.
THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
THE SOFTWARE.
****************************************************************************/
#pragma once
#if (CC_PLATFORM == CC_PLATFORM_IOS)
#include <Availability.h>
#endif
#ifdef _MSC_VER
#include <malloc.h>
#else
#include <cstdlib>
#endif
#include <new> // std::nothrow
#include "base/Macros.h"
namespace cc {
class MemoryAllocDealloc final {
public:
inline static void *allocateBytesAligned(size_t alignment, size_t count) {
#ifdef _MSC_VER
void *ptr = _aligned_malloc(count, alignment);
#else
// alignment is not multiple of sizeof(void*)
CC_ASSERT_ZERO(alignment % sizeof(void *));
void *ptr = nullptr;
posix_memalign(&ptr, alignment, count);
#endif
return ptr;
}
inline static void deallocateBytesAligned(void *ptr) {
#ifdef _MSC_VER
_aligned_free(ptr);
#else
free(ptr);
#endif
}
};
} // namespace cc
#define ccnew new (std::nothrow) //NOLINT(readability-identifier-naming)
#define ccnew_placement(...) new (__VA_ARGS__) //NOLINT(readability-identifier-naming)
#define CC_SAFE_DELETE(ptr) \
if (ptr) { \
delete ptr; \
(ptr) = nullptr; \
}
#define CC_SAFE_DELETE_ARRAY(ptr) \
if (ptr) { \
delete[] ptr; \
(ptr) = nullptr; \
}
#define CC_MALLOC(bytes) malloc(bytes)
#define CC_MALLOC_ALIGN(bytes, align) ::cc::MemoryAllocDealloc::allocateBytesAligned(align, bytes)
#define CC_REALLOC(ptr, bytes) realloc(ptr, bytes)
#define CC_FREE(ptr) free((void *)ptr)
#define CC_FREE_ALIGN(ptr) ::cc::MemoryAllocDealloc::deallocateBytesAligned(ptr)
#define CC_SAFE_FREE(ptr) \
if (ptr) { \
CC_FREE(ptr); \
(ptr) = nullptr; \
}
#define CC_SAFE_DESTROY(ptr) \
if (ptr) { \
(ptr)->destroy(); \
}
#define CC_SAFE_DESTROY_AND_DELETE(ptr) \
if (ptr) { \
(ptr)->destroy(); \
delete ptr; \
(ptr) = nullptr; \
}
#define CC_SAFE_DESTROY_NULL(ptr) \
if (ptr) { \
(ptr)->destroy(); \
(ptr) = nullptr; \
}
#define CC_SAFE_RELEASE(p) \
if (p) { \
(p)->release(); \
}
#define CC_SAFE_RELEASE_NULL(p) \
if (p) { \
(p)->release(); \
(p) = nullptr; \
}
#define CC_SAFE_ADD_REF(p) \
if (p) { \
(p)->addRef(); \
}
#if ((CC_PLATFORM == CC_PLATFORM_IOS) && (__IPHONE_OS_VERSION_MIN_REQUIRED < __IPHONE_11_0)) || SWIGCOCOS
#define ALIGNAS(x)
#else
#define ALIGNAS(x) alignas(x)
#endif

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/****************************************************************************
Copyright (c) 2021-2023 Xiamen Yaji Software Co., Ltd.
http://www.cocos.com
Permission is hereby granted, free of charge, to any person obtaining a copy
of this software and associated documentation files (the "Software"), to deal
in the Software without restriction, including without limitation the rights to
use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies
of the Software, and to permit persons to whom the Software is furnished to do so,
subject to the following conditions:
The above copyright notice and this permission notice shall be included in
all copies or substantial portions of the Software.
THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
THE SOFTWARE.
****************************************************************************/
#include "MemoryHook.h"
#include "CallStack.h"
#if USE_MEMORY_LEAK_DETECTOR
#include <sstream>
#if CC_PLATFORM == CC_PLATFORM_ANDROID
#define __GNU_SOURCE
#include <android/log.h>
#include <dlfcn.h>
static NewHookType g_new_hooker = nullptr;
static DeleteHookType g_delete_hooker = nullptr;
extern "C" {
void *malloc(size_t size) __attribute__((weak));
void free(void *ptr) __attribute__((weak));
// Use strong symbol to overwrite the weak one.
void *malloc(size_t size) {
static MallocType system_malloc = nullptr;
if (CC_PREDICT_FALSE(system_malloc == nullptr)) {
system_malloc = (MallocType)dlsym(RTLD_NEXT, "malloc");
}
void *ptr = system_malloc(size);
if (CC_PREDICT_TRUE(g_new_hooker != nullptr)) {
g_new_hooker(ptr, size);
}
return ptr;
}
void free(void *ptr) {
static FreeType system_free = nullptr;
if (CC_PREDICT_FALSE(system_free == nullptr)) {
system_free = (FreeType)dlsym(RTLD_NEXT, "free");
}
system_free(ptr);
if (CC_PREDICT_TRUE(g_delete_hooker != nullptr)) {
g_delete_hooker(ptr);
}
}
}
#elif CC_PLATFORM == CC_PLATFORM_IOS || CC_PLATFORM == CC_PLATFORM_MACOS
typedef void malloc_logger_t(uint32_t aType,
uintptr_t aArg1, uintptr_t aArg2, uintptr_t aArg3,
uintptr_t aResult, uint32_t aNumHotFramesToSkip);
extern malloc_logger_t *malloc_logger;
static malloc_logger_t *g_system_malloc_logger = nullptr;
static NewHookType g_new_hooker = nullptr;
static DeleteHookType g_delete_hooker = nullptr;
static void
cc_malloc_logger(uint32_t aType,
uintptr_t aArg1, uintptr_t aArg2, uintptr_t aArg3,
uintptr_t aResult, uint32_t aNumHotFramesToSkip) {
if (aResult != 0) {
size_t new_size = reinterpret_cast<size_t>(aArg3);
if (new_size != 0) {
// realloc
if (CC_PREDICT_TRUE(g_delete_hooker != nullptr)) {
const void *ptr = reinterpret_cast<const void *>(aArg2);
g_delete_hooker(ptr);
}
if (CC_PREDICT_TRUE(g_new_hooker != nullptr)) {
const void *new_ptr = reinterpret_cast<const void *>(aResult);
g_new_hooker(new_ptr, new_size);
}
} else {
// malloc/calloc/valloc
if (CC_PREDICT_TRUE(g_new_hooker != nullptr)) {
const void *ptr = reinterpret_cast<const void *>(aResult);
size_t size = reinterpret_cast<size_t>(aArg2);
g_new_hooker(ptr, size);
}
}
} else {
// free
if (CC_PREDICT_TRUE(g_delete_hooker != nullptr)) {
const void *ptr = reinterpret_cast<const void *>(aArg2);
g_delete_hooker(ptr);
}
}
}
#elif CC_PLATFORM == CC_PLATFORM_WINDOWS
#include <Windows.h>
extern "C" {
typedef void (*MallocHook_NewHook)(const void *ptr, size_t size);
typedef void (*MallocHook_DeleteHook)(const void *ptr);
int MallocHook_AddNewHook(MallocHook_NewHook hook);
int MallocHook_RemoveNewHook(MallocHook_NewHook hook);
int MallocHook_AddDeleteHook(MallocHook_DeleteHook hook);
int MallocHook_RemoveDeleteHook(MallocHook_DeleteHook hook);
}
#endif
namespace cc {
static void newHook(const void *ptr, size_t size) {
uint64_t address = reinterpret_cast<uint64_t>(ptr);
GMemoryHook.addRecord(address, size);
}
static void deleteHook(const void *ptr) {
uint64_t address = reinterpret_cast<uint64_t>(ptr);
GMemoryHook.removeRecord(address);
}
MemoryHook::MemoryHook() {
registerAll();
}
MemoryHook::~MemoryHook() {
unRegisterAll();
dumpMemoryLeak();
}
void MemoryHook::addRecord(uint64_t address, size_t size) {
std::lock_guard<std::recursive_mutex> lock(_mutex);
if (_hooking) {
return;
}
_hooking = true;
// {} is necessary here to make variables being destroyed before _hooking = false
{
MemoryRecord record;
record.address = address;
record.size = size;
record.callstack = CallStack::backtrace();
_records.insert({address, record});
_totalSize += size;
}
_hooking = false;
}
void MemoryHook::removeRecord(uint64_t address) {
std::lock_guard<std::recursive_mutex> lock(_mutex);
if (_hooking) {
return;
}
_hooking = true;
// {} is necessary here to make variables being destroyed before _hooking = false
{
auto iter = _records.find(address);
if (iter != _records.end()) {
_totalSize -= iter->second.size;
_records.erase(iter);
}
}
_hooking = false;
}
static bool isIgnored(const StackFrame &frame) {
#if CC_PLATFORM == CC_PLATFORM_WINDOWS
static const ccstd::vector<ccstd::string> ignoreModules = {
"SDL2",
"EGL",
"GLESv2",
"opengl32",
"nvoglv64",
"sqlite3",
"libuv",
"SogouPy"};
static const ccstd::vector<ccstd::string> ignoreFunctions = {
"type_info::name"};
for (auto &module : ignoreModules) {
if (frame.module.find(module) != ccstd::string::npos) {
return true;
}
}
for (auto &function : ignoreFunctions) {
if (frame.function.find(function) != ccstd::string::npos) {
return true;
}
}
return false;
#else
return false;
#endif
}
void MemoryHook::dumpMemoryLeak() {
std::lock_guard<std::recursive_mutex> lock(_mutex);
#if CC_PLATFORM == CC_PLATFORM_WINDOWS
CallStack::initSym();
#endif
std::stringstream startStream;
startStream << std::endl;
startStream << "---------------------------------------------------------------------------------------------------------" << std::endl;
startStream << "--------------------------------------memory leak report start-------------------------------------------" << std::endl;
startStream << "---------------------------------------------------------------------------------------------------------" << std::endl;
log(startStream.str());
if (_records.size() == 0) {
std::stringstream stream;
stream << std::endl;
stream << "Congratulations! There is no memory leak at all." << std::endl;
log(stream.str());
}
uint32_t i = 0;
size_t skipSize = 0;
uint32_t skipCount = 0;
for (const auto &iter : _records) {
bool skip = false;
auto frames = CallStack::backtraceSymbols(iter.second.callstack);
for (auto &frame : frames) {
if (isIgnored(frame)) {
skip = true;
break;
}
}
if (skip) {
skipSize += iter.second.size;
skipCount++;
continue;
}
std::stringstream stream;
int k = 0;
stream << std::endl;
stream << "<" << ++i << ">:"
<< "leak " << iter.second.size << " bytes at 0x" << std::hex << iter.second.address << std::dec << std::endl;
stream << "\tcallstack:" << std::endl;
for (auto &frame : frames) {
stream << "\t[" << ++k << "]:" << frame.toString() << std::endl;
}
log(stream.str());
}
std::stringstream endStream;
endStream << std::endl
<< "Total leak count: " << _records.size() << " with " << _totalSize << " bytes, "
<< "Total skip count: " << skipCount << " with " << skipSize << " bytes" << std::endl;
endStream << "---------------------------------------------------------------------------------------------------------" << std::endl;
endStream << "--------------------------------------memory leak report end---------------------------------------------" << std::endl;
endStream << "---------------------------------------------------------------------------------------------------------" << std::endl;
log(endStream.str());
#if CC_PLATFORM == CC_PLATFORM_WINDOWS
CallStack::cleanupSym();
#endif
}
void MemoryHook::log(const ccstd::string &msg) {
#if (CC_PLATFORM == CC_PLATFORM_ANDROID)
__android_log_write(ANDROID_LOG_WARN, "Cocos", msg.c_str());
#elif CC_PLATFORM == CC_PLATFORM_IOS || CC_PLATFORM == CC_PLATFORM_MACOS
fputs(msg.c_str(), stdout);
#elif (CC_PLATFORM == CC_PLATFORM_WINDOWS)
OutputDebugStringA(msg.c_str());
#endif
}
void MemoryHook::registerAll() {
#if CC_PLATFORM == CC_PLATFORM_ANDROID
g_new_hooker = newHook;
g_delete_hooker = deleteHook;
free(malloc(1)); // force to init system_malloc/system_free
#elif CC_PLATFORM == CC_PLATFORM_IOS || CC_PLATFORM == CC_PLATFORM_MACOS
g_system_malloc_logger = malloc_logger;
malloc_logger = cc_malloc_logger;
g_new_hooker = newHook;
g_delete_hooker = deleteHook;
#elif CC_PLATFORM == CC_PLATFORM_WINDOWS
MallocHook_AddNewHook(&newHook);
MallocHook_AddDeleteHook(&deleteHook);
#endif
}
void MemoryHook::unRegisterAll() {
#if CC_PLATFORM == CC_PLATFORM_ANDROID
g_new_hooker = nullptr;
g_delete_hooker = nullptr;
#elif CC_PLATFORM == CC_PLATFORM_IOS || CC_PLATFORM == CC_PLATFORM_MACOS
malloc_logger = g_system_malloc_logger;
g_new_hooker = nullptr;
g_delete_hooker = nullptr;
#elif CC_PLATFORM == CC_PLATFORM_WINDOWS
MallocHook_RemoveNewHook(&newHook);
MallocHook_RemoveDeleteHook(&deleteHook);
#endif
}
} // namespace cc
#endif

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/****************************************************************************
Copyright (c) 2021-2023 Xiamen Yaji Software Co., Ltd.
http://www.cocos.com
Permission is hereby granted, free of charge, to any person obtaining a copy
of this software and associated documentation files (the "Software"), to deal
in the Software without restriction, including without limitation the rights to
use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies
of the Software, and to permit persons to whom the Software is furnished to do so,
subject to the following conditions:
The above copyright notice and this permission notice shall be included in
all copies or substantial portions of the Software.
THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
THE SOFTWARE.
****************************************************************************/
#pragma once
#include "../Config.h"
#if USE_MEMORY_LEAK_DETECTOR
#include <mutex>
#include "../Macros.h"
#include "base/std/container/string.h"
#include "base/std/container/unordered_map.h"
#include "base/std/container/vector.h"
typedef void *(*MallocType)(size_t size);
typedef void (*FreeType)(void *ptr);
typedef void (*NewHookType)(const void *ptr, size_t size);
typedef void (*DeleteHookType)(const void *ptr);
namespace cc {
struct CC_DLL MemoryRecord {
uint64_t address{0};
size_t size{0};
ccstd::vector<void *> callstack;
};
class CC_DLL MemoryHook {
public:
MemoryHook();
~MemoryHook();
/**
* RecordMap's key is memory address.
*/
using RecordMap = ccstd::unordered_map<uint64_t, MemoryRecord>;
void addRecord(uint64_t address, size_t size);
void removeRecord(uint64_t address);
inline size_t getTotalSize() const { return _totalSize; }
private:
/**
* Dump all memory leaks to output window
*/
void dumpMemoryLeak();
static void log(const ccstd::string &msg);
/**
* Register all malloc hooks
*/
void registerAll();
/**
* Unregister all malloc hooks
*/
void unRegisterAll();
private:
std::recursive_mutex _mutex;
bool _hooking{false};
RecordMap _records;
size_t _totalSize{0U};
};
extern MemoryHook GMemoryHook;
} // namespace cc
#endif