用arm-linux-gcc v4.3.4交叉编译Qt4.8.3
1.解压缩
#tar zxvf qt-everywhere-opensource-src-4.8.3.tar.gz
2. configure
#mkdir buildarm-static
#cd buildarm-static
#../qt-everywhere-opensource-src-4.8.3/configure \
-opensource -confirm-license \
-release \
-prefix /usr/qt-4.83-arm-static \
-embedded arm -little-endian -static \
-qt-mouse-tslib -L $PWD/lib -I $PWD/include/tslib \
-no-largefile \
-no-accessibility \
-no-qt3support \
-no-xmlpatterns \
-no-multimedia -audio-backend \
-no-phonon -no-phonon-backend \
-no-svg \
-no-webkit \
-no-javascript-jit \
-no-script -no-scripttools \
-no-declarative \
-no-declarative-debug \
-platform qws/linux-x86-g++ \
-no-mmx -no-3dnow \
-no-sse -no-sse2 -no-sse3 -no-ssse3 -no-sse4.1 -no-sse4.2 \
-no-avx -no-neon\
-qt-zlib \
-no-gif -no-libtiff \
-qt-libpng \
-no-libmng \
-qt-libjpeg \
-qt-freetype -no-openssl \
-nomake tools -nomake examples -nomake demos -nomake docs -nomake translations \
-no-nis -no-cups -no-iconv -no-pch -no-dbus \
-reduce-relocations \
-no-gtkstyle -no-nas-sound -no-opengl -no-openvg -no-sm \
-no-xshape -no-xvideo -no-xsync -no-xinerama -no-xcursor \
-no-xfixes -no-xrandr -no-xrender -no-mitshm -no-fontconfig \
-no-xinput -no-xkb -no-glib \
2>&1 | tee ../qteconfigarm-static.log
3.compile and install
#gmake 2>&1 | tee ../qtemake-static.log
#gmake install
4. error
/qt-everywhere-opensource-src-4.8.5/src/3rdparty/javascriptcore/JavaScriptCore/runtime/Collector.cpp:662: error: 'pthread_getattr_np' was not declared in this scope
修改Collector.cpp文件：
/* * Copyright (C) 2003, 2004, 2005, 2006, 2007, 2008, 2009 Apple Inc. All rights reserved. * Copyright (C) 2007 Eric Seidel <[email protected]> * * This library is free software; you can redistribute it and/or * modify it under the terms of the GNU Lesser General Public * License as published by the Free Software Foundation; either * version 2 of the License, or (at your option) any later version. * * This library is distributed in the hope that it will be useful, * but WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU * Lesser General Public License for more details. * * You should have received a copy of the GNU Lesser General Public * License along with this library; if not, write to the Free Software * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA * */ #include "config.h" #include "Collector.h" #include "ArgList.h" #include "CallFrame.h" #include "CodeBlock.h" #include "CollectorHeapIterator.h" #include "Interpreter.h" #include "JSArray.h" #include "JSGlobalObject.h" #include "JSLock.h" #include "JSONObject.h" #include "JSString.h" #include "JSValue.h" #include "JSZombie.h" #include "MarkStack.h" #include "Nodes.h" #include "Tracing.h" #include <algorithm> #include <limits.h> #include <setjmp.h> #include <stdlib.h> #include <wtf/FastMalloc.h> #include <wtf/HashCountedSet.h> #include <wtf/UnusedParam.h> #include <wtf/VMTags.h> #if OS(DARWIN) #include <mach/mach_init.h> #include <mach/mach_port.h> #include <mach/task.h> #include <mach/thread_act.h> #include <mach/vm_map.h> #elif OS(WINDOWS) #include <windows.h> #include <malloc.h> #elif OS(HAIKU) #include <OS.h> #elif OS(UNIX) #include <stdlib.h> #if !OS(HAIKU) #include <sys/mman.h> #endif #include <unistd.h> #if defined(QT_LINUXBASE) #include <dlfcn.h> #endif #if defined(__UCLIBC__) // versions of uClibc 0.9.32 and below with linuxthreads.old do not have // pthread_getattr_np or pthread_attr_getstack. #if __UCLIBC_MAJOR__ == 0 && \ (__UCLIBC_MINOR__ < 9 || \ (__UCLIBC_MINOR__ == 9 && __UCLIBC_SUBLEVEL__ <= 32)) && \ defined(__LINUXTHREADS_OLD__) #define UCLIBC_USE_PROC_SELF_MAPS 1 #include <stdio_ext.h> extern int *__libc_stack_end; #endif #endif #if OS(SOLARIS) #include <thread.h> #else #include <pthread.h> #endif #if HAVE(PTHREAD_NP_H) #include <pthread_np.h> #endif #if OS(QNX) #include <fcntl.h> #include <sys/procfs.h> #include <stdio.h> #include <errno.h> #endif #endif #define COLLECT_ON_EVERY_ALLOCATION 0 using std::max; namespace JSC { // tunable parameters const size_t GROWTH_FACTOR = 2; const size_t LOW_WATER_FACTOR = 4; const size_t ALLOCATIONS_PER_COLLECTION = 3600; // This value has to be a macro to be used in max() without introducing // a PIC branch in Mach-O binaries, see <rdar://problem/5971391>. #define MIN_ARRAY_SIZE (static_cast<size_t>(14)) #if ENABLE(JSC_MULTIPLE_THREADS) #if OS(DARWIN) typedef mach_port_t PlatformThread; #elif OS(WINDOWS) typedef HANDLE PlatformThread; #endif class Heap::Thread { public: Thread(pthread_t pthread, const PlatformThread& platThread, void* base) : posixThread(pthread) , platformThread(platThread) , stackBase(base) { } Thread* next; pthread_t posixThread; PlatformThread platformThread; void* stackBase; }; #endif Heap::Heap(JSGlobalData* globalData) : m_markListSet(0) #if ENABLE(JSC_MULTIPLE_THREADS) , m_registeredThreads(0) , m_currentThreadRegistrar(0) #endif #if OS(SYMBIAN) , m_blockallocator(WTF::AlignedBlockAllocator::instance(JSCCOLLECTOR_VIRTUALMEM_RESERVATION, BLOCK_SIZE)) #endif , m_globalData(globalData) { ASSERT(globalData); memset(&m_heap, 0, sizeof(CollectorHeap)); allocateBlock(); } Heap::~Heap() { // The destroy function must already have been called, so assert this. ASSERT(!m_globalData); } void Heap::destroy() { JSLock lock(SilenceAssertionsOnly); if (!m_globalData) return; ASSERT(!m_globalData->dynamicGlobalObject); ASSERT(!isBusy()); // The global object is not GC protected at this point, so sweeping may delete it // (and thus the global data) before other objects that may use the global data. RefPtr<JSGlobalData> protect(m_globalData); delete m_markListSet; m_markListSet = 0; freeBlocks(); #if ENABLE(JSC_MULTIPLE_THREADS) if (m_currentThreadRegistrar) { int error = pthread_key_delete(m_currentThreadRegistrar); ASSERT_UNUSED(error, !error); } MutexLocker registeredThreadsLock(m_registeredThreadsMutex); for (Heap::Thread* t = m_registeredThreads; t;) { Heap::Thread* next = t->next; delete t; t = next; } #endif m_globalData = 0; } NEVER_INLINE CollectorBlock* Heap::allocateBlock() { #if OS(DARWIN) vm_address_t address = 0; vm_map(current_task(), &address, BLOCK_SIZE, BLOCK_OFFSET_MASK, VM_FLAGS_ANYWHERE | VM_TAG_FOR_COLLECTOR_MEMORY, MEMORY_OBJECT_NULL, 0, FALSE, VM_PROT_DEFAULT, VM_PROT_DEFAULT, VM_INHERIT_DEFAULT); #elif OS(SYMBIAN) void* address = m_blockallocator.alloc(); if (!address) CRASH(); #elif OS(WINCE) void* address = VirtualAlloc(NULL, BLOCK_SIZE, MEM_COMMIT | MEM_RESERVE, PAGE_READWRITE); #elif OS(WINDOWS) #if COMPILER(MINGW) && !COMPILER(MINGW64) void* address = __mingw_aligned_malloc(BLOCK_SIZE, BLOCK_SIZE); #else void* address = _aligned_malloc(BLOCK_SIZE, BLOCK_SIZE); #endif memset(address, 0, BLOCK_SIZE); #elif HAVE(POSIX_MEMALIGN) void* address; posix_memalign(&address, BLOCK_SIZE, BLOCK_SIZE); #else #if ENABLE(JSC_MULTIPLE_THREADS) #error Need to initialize pagesize safely. #endif static size_t pagesize = getpagesize(); size_t extra = 0; if (BLOCK_SIZE > pagesize) extra = BLOCK_SIZE - pagesize; void* mmapResult = mmap(NULL, BLOCK_SIZE + extra, PROT_READ | PROT_WRITE, MAP_PRIVATE | MAP_ANON, -1, 0); uintptr_t address = reinterpret_cast<uintptr_t>(mmapResult); size_t adjust = 0; if ((address & BLOCK_OFFSET_MASK) != 0) adjust = BLOCK_SIZE - (address & BLOCK_OFFSET_MASK); if (adjust > 0) munmap(reinterpret_cast<char*>(address), adjust); if (adjust < extra) munmap(reinterpret_cast<char*>(address + adjust + BLOCK_SIZE), extra - adjust); address += adjust; #endif // Initialize block. CollectorBlock* block = reinterpret_cast<CollectorBlock*>(address); block->heap = this; clearMarkBits(block); Structure* dummyMarkableCellStructure = m_globalData->dummyMarkableCellStructure.get(); for (size_t i = 0; i < HeapConstants::cellsPerBlock; ++i) new (block->cells + i) JSCell(dummyMarkableCellStructure); // Add block to blocks vector. size_t numBlocks = m_heap.numBlocks; if (m_heap.usedBlocks == numBlocks) { static const size_t maxNumBlocks = ULONG_MAX / sizeof(CollectorBlock*) / GROWTH_FACTOR; if (numBlocks > maxNumBlocks) CRASH(); numBlocks = max(MIN_ARRAY_SIZE, numBlocks * GROWTH_FACTOR); m_heap.numBlocks = numBlocks; m_heap.blocks = static_cast<CollectorBlock**>(fastRealloc(m_heap.blocks, numBlocks * sizeof(CollectorBlock*))); } m_heap.blocks[m_heap.usedBlocks++] = block; return block; } NEVER_INLINE void Heap::freeBlock(size_t block) { m_heap.didShrink = true; ObjectIterator it(m_heap, block); ObjectIterator end(m_heap, block + 1); for ( ; it != end; ++it) (*it)->~JSCell(); freeBlockPtr(m_heap.blocks[block]); // swap with the last block so we compact as we go m_heap.blocks[block] = m_heap.blocks[m_heap.usedBlocks - 1]; m_heap.usedBlocks--; if (m_heap.numBlocks > MIN_ARRAY_SIZE && m_heap.usedBlocks < m_heap.numBlocks / LOW_WATER_FACTOR) { m_heap.numBlocks = m_heap.numBlocks / GROWTH_FACTOR; m_heap.blocks = static_cast<CollectorBlock**>(fastRealloc(m_heap.blocks, m_heap.numBlocks * sizeof(CollectorBlock*))); } } NEVER_INLINE void Heap::freeBlockPtr(CollectorBlock* block) { #if OS(DARWIN) vm_deallocate(current_task(), reinterpret_cast<vm_address_t>(block), BLOCK_SIZE); #elif OS(SYMBIAN) m_blockallocator.free(reinterpret_cast<void*>(block)); #elif OS(WINCE) VirtualFree(block, 0, MEM_RELEASE); #elif OS(WINDOWS) #if COMPILER(MINGW) && !COMPILER(MINGW64) __mingw_aligned_free(block); #else _aligned_free(block); #endif #elif HAVE(POSIX_MEMALIGN) free(block); #else munmap(reinterpret_cast<char*>(block), BLOCK_SIZE); #endif } void Heap::freeBlocks() { ProtectCountSet protectedValuesCopy = m_protectedValues; clearMarkBits(); ProtectCountSet::iterator protectedValuesEnd = protectedValuesCopy.end(); for (ProtectCountSet::iterator it = protectedValuesCopy.begin(); it != protectedValuesEnd; ++it) markCell(it->first); m_heap.nextCell = 0; m_heap.nextBlock = 0; DeadObjectIterator it(m_heap, m_heap.nextBlock, m_heap.nextCell); DeadObjectIterator end(m_heap, m_heap.usedBlocks); for ( ; it != end; ++it) (*it)->~JSCell(); ASSERT(!protectedObjectCount()); protectedValuesEnd = protectedValuesCopy.end(); for (ProtectCountSet::iterator it = protectedValuesCopy.begin(); it != protectedValuesEnd; ++it) it->first->~JSCell(); for (size_t block = 0; block < m_heap.usedBlocks; ++block) freeBlockPtr(m_heap.blocks[block]); fastFree(m_heap.blocks); memset(&m_heap, 0, sizeof(CollectorHeap)); } void Heap::recordExtraCost(size_t cost) { // Our frequency of garbage collection tries to balance memory use against speed // by collecting based on the number of newly created values. However, for values // that hold on to a great deal of memory that's not in the form of other JS values, // that is not good enough - in some cases a lot of those objects can pile up and // use crazy amounts of memory without a GC happening. So we track these extra // memory costs. Only unusually large objects are noted, and we only keep track // of this extra cost until the next GC. In garbage collected languages, most values // are either very short lived temporaries, or have extremely long lifetimes. So // if a large value survives one garbage collection, there is not much point to // collecting more frequently as long as it stays alive. if (m_heap.extraCost > maxExtraCost && m_heap.extraCost > m_heap.usedBlocks * BLOCK_SIZE / 2) { // If the last iteration through the heap deallocated blocks, we need // to clean up remaining garbage before marking. Otherwise, the conservative // marking mechanism might follow a pointer to unmapped memory. if (m_heap.didShrink) sweep(); reset(); } m_heap.extraCost += cost; } void* Heap::allocate(size_t s) { typedef HeapConstants::Block Block; typedef HeapConstants::Cell Cell; ASSERT(JSLock::lockCount() > 0); ASSERT(JSLock::currentThreadIsHoldingLock()); ASSERT_UNUSED(s, s <= HeapConstants::cellSize); ASSERT(m_heap.operationInProgress == NoOperation); #if COLLECT_ON_EVERY_ALLOCATION collectAllGarbage(); ASSERT(m_heap.operationInProgress == NoOperation); #endif allocate: // Fast case: find the next garbage cell and recycle it. do { ASSERT(m_heap.nextBlock < m_heap.usedBlocks); Block* block = reinterpret_cast<Block*>(m_heap.blocks[m_heap.nextBlock]); do { ASSERT(m_heap.nextCell < HeapConstants::cellsPerBlock); if (!block->marked.get(m_heap.nextCell)) { // Always false for the last cell in the block Cell* cell = block->cells + m_heap.nextCell; m_heap.operationInProgress = Allocation; JSCell* imp = reinterpret_cast<JSCell*>(cell); imp->~JSCell(); m_heap.operationInProgress = NoOperation; ++m_heap.nextCell; return cell; } } while (++m_heap.nextCell != HeapConstants::cellsPerBlock); m_heap.nextCell = 0; } while (++m_heap.nextBlock != m_heap.usedBlocks); // Slow case: reached the end of the heap. Mark live objects and start over. reset(); goto allocate; } void Heap::resizeBlocks() { m_heap.didShrink = false; size_t usedCellCount = markedCells(); size_t minCellCount = usedCellCount + max(ALLOCATIONS_PER_COLLECTION, usedCellCount); size_t minBlockCount = (minCellCount + HeapConstants::cellsPerBlock - 1) / HeapConstants::cellsPerBlock; size_t maxCellCount = 1.25f * minCellCount; size_t maxBlockCount = (maxCellCount + HeapConstants::cellsPerBlock - 1) / HeapConstants::cellsPerBlock; if (m_heap.usedBlocks < minBlockCount) growBlocks(minBlockCount); else if (m_heap.usedBlocks > maxBlockCount) shrinkBlocks(maxBlockCount); } void Heap::growBlocks(size_t neededBlocks) { ASSERT(m_heap.usedBlocks < neededBlocks); while (m_heap.usedBlocks < neededBlocks) allocateBlock(); } void Heap::shrinkBlocks(size_t neededBlocks) { ASSERT(m_heap.usedBlocks > neededBlocks); // Clear the always-on last bit, so isEmpty() isn't fooled by it. for (size_t i = 0; i < m_heap.usedBlocks; ++i) m_heap.blocks[i]->marked.clear(HeapConstants::cellsPerBlock - 1); for (size_t i = 0; i != m_heap.usedBlocks && m_heap.usedBlocks != neededBlocks; ) { if (m_heap.blocks[i]->marked.isEmpty()) { freeBlock(i); } else ++i; } // Reset the always-on last bit. for (size_t i = 0; i < m_heap.usedBlocks; ++i) m_heap.blocks[i]->marked.set(HeapConstants::cellsPerBlock - 1); } #if OS(WINCE) void* g_stackBase = 0; inline bool isPageWritable(void* page) { MEMORY_BASIC_INFORMATION memoryInformation; DWORD result = VirtualQuery(page, &memoryInformation, sizeof(memoryInformation)); // return false on error, including ptr outside memory if (result != sizeof(memoryInformation)) return false; DWORD protect = memoryInformation.Protect & ~(PAGE_GUARD | PAGE_NOCACHE); return protect == PAGE_READWRITE || protect == PAGE_WRITECOPY || protect == PAGE_EXECUTE_READWRITE || protect == PAGE_EXECUTE_WRITECOPY; } static void* getStackBase(void* previousFrame) { // find the address of this stack frame by taking the address of a local variable bool isGrowingDownward; void* thisFrame = (void*)(&isGrowingDownward); isGrowingDownward = previousFrame < &thisFrame; static DWORD pageSize = 0; if (!pageSize) { SYSTEM_INFO systemInfo; GetSystemInfo(&systemInfo); pageSize = systemInfo.dwPageSize; } // scan all of memory starting from this frame, and return the last writeable page found register char* currentPage = (char*)((DWORD)thisFrame & ~(pageSize - 1)); if (isGrowingDownward) { while (currentPage > 0) { // check for underflow if (currentPage >= (char*)pageSize) currentPage -= pageSize; else currentPage = 0; if (!isPageWritable(currentPage)) return currentPage + pageSize; } return 0; } else { while (true) { // guaranteed to complete because isPageWritable returns false at end of memory currentPage += pageSize; if (!isPageWritable(currentPage)) return currentPage; } } } #endif #if OS(HPUX) struct hpux_get_stack_base_data { pthread_t thread; _pthread_stack_info info; }; static void *hpux_get_stack_base_internal(void *d) { hpux_get_stack_base_data *data = static_cast<hpux_get_stack_base_data *>(d); // _pthread_stack_info_np requires the target thread to be suspended // in order to get information about it pthread_suspend(data->thread); // _pthread_stack_info_np returns an errno code in case of failure // or zero on success if (_pthread_stack_info_np(data->thread, &data->info)) { // failed return 0; } pthread_continue(data->thread); return data; } static void *hpux_get_stack_base() { hpux_get_stack_base_data data; data.thread = pthread_self(); // We cannot get the stack information for the current thread // So we start a new thread to get that information and return it to us pthread_t other; pthread_create(&other, 0, hpux_get_stack_base_internal, &data); void *result; pthread_join(other, &result); if (result) return data.info.stk_stack_base; return 0; } #endif #if OS(QNX) static inline void *currentThreadStackBaseQNX() { static void* stackBase = 0; static size_t stackSize = 0; static pthread_t stackThread; pthread_t thread = pthread_self(); if (stackBase == 0 || thread != stackThread) { struct _debug_thread_info threadInfo; memset(&threadInfo, 0, sizeof(threadInfo)); threadInfo.tid = pthread_self(); int fd = open("/proc/self", O_RDONLY); if (fd == -1) { LOG_ERROR("Unable to open /proc/self (errno: %d)", errno); return 0; } devctl(fd, DCMD_PROC_TIDSTATUS, &threadInfo, sizeof(threadInfo), 0); close(fd); stackBase = reinterpret_cast<void*>(threadInfo.stkbase); stackSize = threadInfo.stksize; ASSERT(stackBase); stackThread = thread; } return static_cast<char*>(stackBase) + stackSize; } #endif static inline void* currentThreadStackBase() { #if OS(DARWIN) pthread_t thread = pthread_self(); return pthread_get_stackaddr_np(thread); #elif OS(WINCE) AtomicallyInitializedStatic(Mutex&, mutex = *new Mutex); MutexLocker locker(mutex); if (g_stackBase) return g_stackBase; else { int dummy; return getStackBase(&dummy); } #elif OS(WINDOWS) && CPU(X86) && COMPILER(MSVC) // offset 0x18 from the FS segment register gives a pointer to // the thread information block for the current thread NT_TIB* pTib; __asm { MOV EAX, FS:[18h] MOV pTib, EAX } return static_cast<void*>(pTib->StackBase); #elif OS(WINDOWS) && CPU(X86_64) && (COMPILER(MSVC) || COMPILER(GCC)) // FIXME: why only for MSVC? PNT_TIB64 pTib = reinterpret_cast<PNT_TIB64>(NtCurrentTeb()); return reinterpret_cast<void*>(pTib->StackBase); #elif OS(WINDOWS) && CPU(X86) && COMPILER(GCC) // offset 0x18 from the FS segment register gives a pointer to // the thread information block for the current thread NT_TIB* pTib; asm ( "movl %%fs:0x18, %0\n" : "=r" (pTib) ); return static_cast<void*>(pTib->StackBase); #elif OS(HPUX) return hpux_get_stack_base(); #elif OS(QNX) AtomicallyInitializedStatic(Mutex&, mutex = *new Mutex); MutexLocker locker(mutex); return currentThreadStackBaseQNX(); #elif OS(SOLARIS) stack_t s; thr_stksegment(&s); return s.ss_sp; #elif OS(AIX) pthread_t thread = pthread_self(); struct __pthrdsinfo threadinfo; char regbuf[256]; int regbufsize = sizeof regbuf; if (pthread_getthrds_np(&thread, PTHRDSINFO_QUERY_ALL, &threadinfo, sizeof threadinfo, ®buf, ®bufsize) == 0) return threadinfo.__pi_stackaddr; return 0; #elif OS(OPENBSD) pthread_t thread = pthread_self(); stack_t stack; pthread_stackseg_np(thread, &stack); return stack.ss_sp; #elif OS(SYMBIAN) TThreadStackInfo info; RThread thread; thread.StackInfo(info); return (void*)info.iBase; #elif OS(HAIKU) thread_info threadInfo; get_thread_info(find_thread(NULL), &threadInfo); return threadInfo.stack_end; #elif OS(UNIX) #ifdef UCLIBC_USE_PROC_SELF_MAPS // Read /proc/self/maps and locate the line whose address // range contains __libc_stack_end. FILE *file = fopen("/proc/self/maps", "r"); if (!file) return 0; __fsetlocking(file, FSETLOCKING_BYCALLER); char *line = NULL; size_t lineLen = 0; while (!feof_unlocked(file)) { if (getdelim(&line, &lineLen, '\n', file) <= 0) break; long from; long to; if (sscanf (line, "%lx-%lx", &from, &to) != 2) continue; if (from <= (long)__libc_stack_end && (long)__libc_stack_end < to) { fclose(file); free(line); #ifdef _STACK_GROWS_UP return (void *)from; #else return (void *)to; #endif } } fclose(file); free(line); return 0; #else AtomicallyInitializedStatic(Mutex&, mutex = *new Mutex); MutexLocker locker(mutex); static void* stackBase = 0; static size_t stackSize = 0; static pthread_t stackThread; pthread_t thread = pthread_self(); if (stackBase == 0 || thread != stackThread) { #if defined(QT_LINUXBASE) // LinuxBase is missing pthread_getattr_np - resolve it once at runtime instead // see http://bugs.linuxbase.org/show_bug.cgi?id=2364 typedef int (*GetAttrPtr)(pthread_t, pthread_attr_t *); static int (*pthread_getattr_np_ptr)(pthread_t, pthread_attr_t *) = 0; if (!pthread_getattr_np_ptr) *(void **)&pthread_getattr_np_ptr = dlsym(RTLD_DEFAULT, "pthread_getattr_np"); #endif pthread_attr_t sattr; pthread_attr_init(&sattr); #if HAVE(PTHREAD_NP_H) || OS(NETBSD) // e.g. on FreeBSD 5.4, [email protected] pthread_attr_get_np(thread, &sattr); #elif defined(QT_LINUXBASE) if (pthread_getattr_np_ptr) pthread_getattr_np_ptr(thread, &sattr); #else // FIXME: this function is non-portable; other POSIX systems may have different np alternatives pthread_getattr_np(thread, &sattr); #endif int rc = pthread_attr_getstack(&sattr, &stackBase, &stackSize); (void)rc; // FIXME: Deal with error code somehow? Seems fatal. ASSERT(stackBase); pthread_attr_destroy(&sattr); stackThread = thread; } return static_cast<char*>(stackBase) + stackSize; #endif #else #error Need a way to get the stack base on this platform #endif } #if ENABLE(JSC_MULTIPLE_THREADS) static inline PlatformThread getCurrentPlatformThread() { #if OS(DARWIN) return pthread_mach_thread_np(pthread_self()); #elif OS(WINDOWS) return pthread_getw32threadhandle_np(pthread_self()); #endif } void Heap::makeUsableFromMultipleThreads() { if (m_currentThreadRegistrar) return; int error = pthread_key_create(&m_currentThreadRegistrar, unregisterThread); if (error) CRASH(); } void Heap::registerThread() { ASSERT(!m_globalData->mainThreadOnly || isMainThread()); if (!m_currentThreadRegistrar || pthread_getspecific(m_currentThreadRegistrar)) return; pthread_setspecific(m_currentThreadRegistrar, this); Heap::Thread* thread = new Heap::Thread(pthread_self(), getCurrentPlatformThread(), currentThreadStackBase()); MutexLocker lock(m_registeredThreadsMutex); thread->next = m_registeredThreads; m_registeredThreads = thread; } void Heap::unregisterThread(void* p) { if (p) static_cast<Heap*>(p)->unregisterThread(); } void Heap::unregisterThread() { pthread_t currentPosixThread = pthread_self(); MutexLocker lock(m_registeredThreadsMutex); if (pthread_equal(currentPosixThread, m_registeredThreads->posixThread)) { Thread* t = m_registeredThreads; m_registeredThreads = m_registeredThreads->next; delete t; } else { Heap::Thread* last = m_registeredThreads; Heap::Thread* t; for (t = m_registeredThreads->next; t; t = t->next) { if (pthread_equal(t->posixThread, currentPosixThread)) { last->next = t->next; break; } last = t; } ASSERT(t); // If t is NULL, we never found ourselves in the list. delete t; } } #else // ENABLE(JSC_MULTIPLE_THREADS) void Heap::registerThread() { } #endif inline bool isPointerAligned(void* p) { return (((intptr_t)(p) & (sizeof(char*) - 1)) == 0); } // Cell size needs to be a power of two for isPossibleCell to be valid. COMPILE_ASSERT(sizeof(CollectorCell) % 2 == 0, Collector_cell_size_is_power_of_two); #if USE(JSVALUE32) static bool isHalfCellAligned(void *p) { return (((intptr_t)(p) & (CELL_MASK >> 1)) == 0); } static inline bool isPossibleCell(void* p) { return isHalfCellAligned(p) && p; } #else static inline bool isCellAligned(void *p) { return (((intptr_t)(p) & CELL_MASK) == 0); } static inline bool isPossibleCell(void* p) { return isCellAligned(p) && p; } #endif // USE(JSVALUE32) void Heap::markConservatively(MarkStack& markStack, void* start, void* end) { if (start > end) { void* tmp = start; start = end; end = tmp; } ASSERT((static_cast<char*>(end) - static_cast<char*>(start)) < 0x1000000); ASSERT(isPointerAligned(start)); ASSERT(isPointerAligned(end)); char** p = static_cast<char**>(start); char** e = static_cast<char**>(end); CollectorBlock** blocks = m_heap.blocks; while (p != e) { char* x = *p++; if (isPossibleCell(x)) { size_t usedBlocks; uintptr_t xAsBits = reinterpret_cast<uintptr_t>(x); xAsBits &= CELL_ALIGN_MASK; uintptr_t offset = xAsBits & BLOCK_OFFSET_MASK; const size_t lastCellOffset = sizeof(CollectorCell) * (CELLS_PER_BLOCK - 1); if (offset > lastCellOffset) continue; CollectorBlock* blockAddr = reinterpret_cast<CollectorBlock*>(xAsBits - offset); usedBlocks = m_heap.usedBlocks; for (size_t block = 0; block < usedBlocks; block++) { if (blocks[block] != blockAddr) continue; markStack.append(reinterpret_cast<JSCell*>(xAsBits)); markStack.drain(); } } } } void NEVER_INLINE Heap::markCurrentThreadConservativelyInternal(MarkStack& markStack) { void* dummy; void* stackPointer = &dummy; void* stackBase = currentThreadStackBase(); markConservatively(markStack, stackPointer, stackBase); } #if COMPILER(GCC) #define REGISTER_BUFFER_ALIGNMENT __attribute__ ((aligned (sizeof(void*)))) #else #define REGISTER_BUFFER_ALIGNMENT #endif void Heap::markCurrentThreadConservatively(MarkStack& markStack) { // setjmp forces volatile registers onto the stack jmp_buf registers REGISTER_BUFFER_ALIGNMENT; #if COMPILER(MSVC) #pragma warning(push) #pragma warning(disable: 4611) #endif setjmp(registers); #if COMPILER(MSVC) #pragma warning(pop) #endif markCurrentThreadConservativelyInternal(markStack); } #if ENABLE(JSC_MULTIPLE_THREADS) static inline void suspendThread(const PlatformThread& platformThread) { #if OS(DARWIN) thread_suspend(platformThread); #elif OS(WINDOWS) SuspendThread(platformThread); #else #error Need a way to suspend threads on this platform #endif } static inline void resumeThread(const PlatformThread& platformThread) { #if OS(DARWIN) thread_resume(platformThread); #elif OS(WINDOWS) ResumeThread(platformThread); #else #error Need a way to resume threads on this platform #endif } typedef unsigned long usword_t; // word size, assumed to be either 32 or 64 bit #if OS(DARWIN) #if CPU(X86) typedef i386_thread_state_t PlatformThreadRegisters; #elif CPU(X86_64) typedef x86_thread_state64_t PlatformThreadRegisters; #elif CPU(PPC) typedef ppc_thread_state_t PlatformThreadRegisters; #elif CPU(PPC64) typedef ppc_thread_state64_t PlatformThreadRegisters; #elif CPU(ARM) typedef arm_thread_state_t PlatformThreadRegisters; #else #error Unknown Architecture #endif #elif OS(WINDOWS) && CPU(X86) typedef CONTEXT PlatformThreadRegisters; #else #error Need a thread register struct for this platform #endif static size_t getPlatformThreadRegisters(const PlatformThread& platformThread, PlatformThreadRegisters& regs) { #if OS(DARWIN) #if CPU(X86) unsigned user_count = sizeof(regs)/sizeof(int); thread_state_flavor_t flavor = i386_THREAD_STATE; #elif CPU(X86_64) unsigned user_count = x86_THREAD_STATE64_COUNT; thread_state_flavor_t flavor = x86_THREAD_STATE64; #elif CPU(PPC) unsigned user_count = PPC_THREAD_STATE_COUNT; thread_state_flavor_t flavor = PPC_THREAD_STATE; #elif CPU(PPC64) unsigned user_count = PPC_THREAD_STATE64_COUNT; thread_state_flavor_t flavor = PPC_THREAD_STATE64; #elif CPU(ARM) unsigned user_count = ARM_THREAD_STATE_COUNT; thread_state_flavor_t flavor = ARM_THREAD_STATE; #else #error Unknown Architecture #endif kern_return_t result = thread_get_state(platformThread, flavor, (thread_state_t)®s, &user_count); if (result != KERN_SUCCESS) { WTFReportFatalError(__FILE__, __LINE__, WTF_PRETTY_FUNCTION, "JavaScript garbage collection failed because thread_get_state returned an error (%d). This is probably the result of running inside Rosetta, which is not supported.", result); CRASH(); } return user_count * sizeof(usword_t); // end OS(DARWIN) #elif OS(WINDOWS) && CPU(X86) regs.ContextFlags = CONTEXT_INTEGER | CONTEXT_CONTROL | CONTEXT_SEGMENTS; GetThreadContext(platformThread, ®s); return sizeof(CONTEXT); #else #error Need a way to get thread registers on this platform #endif } static inline void* otherThreadStackPointer(const PlatformThreadRegisters& regs) { #if OS(DARWIN) #if __DARWIN_UNIX03 #if CPU(X86) return reinterpret_cast<void*>(regs.__esp); #elif CPU(X86_64) return reinterpret_cast<void*>(regs.__rsp); #elif CPU(PPC) || CPU(PPC64) return reinterpret_cast<void*>(regs.__r1); #elif CPU(ARM) return reinterpret_cast<void*>(regs.__sp); #else #error Unknown Architecture #endif #else // !__DARWIN_UNIX03 #if CPU(X86) return reinterpret_cast<void*>(regs.esp); #elif CPU(X86_64) return reinterpret_cast<void*>(regs.rsp); #elif CPU(PPC) || CPU(PPC64) return reinterpret_cast<void*>(regs.r1); #else #error Unknown Architecture #endif #endif // __DARWIN_UNIX03 // end OS(DARWIN) #elif CPU(X86) && OS(WINDOWS) return reinterpret_cast<void*>((uintptr_t) regs.Esp); #else #error Need a way to get the stack pointer for another thread on this platform #endif } void Heap::markOtherThreadConservatively(MarkStack& markStack, Thread* thread) { suspendThread(thread->platformThread); PlatformThreadRegisters regs; size_t regSize = getPlatformThreadRegisters(thread->platformThread, regs); // mark the thread's registers markConservatively(markStack, static_cast<void*>(®s), static_cast<void*>(reinterpret_cast<char*>(®s) + regSize)); void* stackPointer = otherThreadStackPointer(regs); markConservatively(markStack, stackPointer, thread->stackBase); resumeThread(thread->platformThread); } #endif void Heap::markStackObjectsConservatively(MarkStack& markStack) { markCurrentThreadConservatively(markStack); #if ENABLE(JSC_MULTIPLE_THREADS) if (m_currentThreadRegistrar) { MutexLocker lock(m_registeredThreadsMutex); #ifndef NDEBUG // Forbid malloc during the mark phase. Marking a thread suspends it, so // a malloc inside markChildren() would risk a deadlock with a thread that had been // suspended while holding the malloc lock. fastMallocForbid(); #endif // It is safe to access the registeredThreads list, because we earlier asserted that locks are being held, // and since this is a shared heap, they are real locks. for (Thread* thread = m_registeredThreads; thread; thread = thread->next) { if (!pthread_equal(thread->posixThread, pthread_self())) markOtherThreadConservatively(markStack, thread); } #ifndef NDEBUG fastMallocAllow(); #endif } #endif } void Heap::protect(JSValue k) { ASSERT(k); ASSERT(JSLock::currentThreadIsHoldingLock() || !m_globalData->isSharedInstance); if (!k.isCell()) return; m_protectedValues.add(k.asCell()); } void Heap::unprotect(JSValue k) { ASSERT(k); ASSERT(JSLock::currentThreadIsHoldingLock() || !m_globalData->isSharedInstance); if (!k.isCell()) return; m_protectedValues.remove(k.asCell()); } void Heap::markProtectedObjects(MarkStack& markStack) { ProtectCountSet::iterator end = m_protectedValues.end(); for (ProtectCountSet::iterator it = m_protectedValues.begin(); it != end; ++it) { markStack.append(it->first); markStack.drain(); } } void Heap::clearMarkBits() { for (size_t i = 0; i < m_heap.usedBlocks; ++i) clearMarkBits(m_heap.blocks[i]); } void Heap::clearMarkBits(CollectorBlock* block) { // allocate assumes that the last cell in every block is marked. block->marked.clearAll(); block->marked.set(HeapConstants::cellsPerBlock - 1); } size_t Heap::markedCells(size_t startBlock, size_t startCell) const { ASSERT(startBlock <= m_heap.usedBlocks); ASSERT(startCell < HeapConstants::cellsPerBlock); if (startBlock >= m_heap.usedBlocks) return 0; size_t result = 0; result += m_heap.blocks[startBlock]->marked.count(startCell); for (size_t i = startBlock + 1; i < m_heap.usedBlocks; ++i) result += m_heap.blocks[i]->marked.count(); return result; } void Heap::sweep() { ASSERT(m_heap.operationInProgress == NoOperation); if (m_heap.operationInProgress != NoOperation) CRASH(); m_heap.operationInProgress = Collection; #if !ENABLE(JSC_ZOMBIES) Structure* dummyMarkableCellStructure = m_globalData->dummyMarkableCellStructure.get(); #endif DeadObjectIterator it(m_heap, m_heap.nextBlock, m_heap.nextCell); DeadObjectIterator end(m_heap, m_heap.usedBlocks); for ( ; it != end; ++it) { JSCell* cell = *it; #if ENABLE(JSC_ZOMBIES) if (!cell->isZombie()) { const ClassInfo* info = cell->classInfo(); cell->~JSCell(); new (cell) JSZombie(info, JSZombie::leakedZombieStructure()); Heap::markCell(cell); } #else cell->~JSCell(); // Callers of sweep assume it's safe to mark any cell in the heap. new (cell) JSCell(dummyMarkableCellStructure); #endif } m_heap.operationInProgress = NoOperation; } void Heap::markRoots() { #ifndef NDEBUG if (m_globalData->isSharedInstance) { ASSERT(JSLock::lockCount() > 0); ASSERT(JSLock::currentThreadIsHoldingLock()); } #endif ASSERT(m_heap.operationInProgress == NoOperation); if (m_heap.operationInProgress != NoOperation) CRASH(); m_heap.operationInProgress = Collection; MarkStack& markStack = m_globalData->markStack; // Reset mark bits. clearMarkBits(); // Mark stack roots. markStackObjectsConservatively(markStack); m_globalData->interpreter->registerFile().markCallFrames(markStack, this); // Mark explicitly registered roots. markProtectedObjects(markStack); #if QT_BUILD_SCRIPT_LIB if (m_globalData->clientData) m_globalData->clientData->mark(markStack); #endif // Mark misc. other roots. if (m_markListSet && m_markListSet->size()) MarkedArgumentBuffer::markLists(markStack, *m_markListSet); if (m_globalData->exception) markStack.append(m_globalData->exception); m_globalData->smallStrings.markChildren(markStack); if (m_globalData->functionCodeBlockBeingReparsed) m_globalData->functionCodeBlockBeingReparsed->markAggregate(markStack); if (m_globalData->firstStringifierToMark) JSONObject::markStringifiers(markStack, m_globalData->firstStringifierToMark); markStack.drain(); markStack.compact(); m_heap.operationInProgress = NoOperation; } size_t Heap::objectCount() const { return m_heap.nextBlock * HeapConstants::cellsPerBlock // allocated full blocks + m_heap.nextCell // allocated cells in current block + markedCells(m_heap.nextBlock, m_heap.nextCell) // marked cells in remainder of m_heap - m_heap.usedBlocks; // 1 cell per block is a dummy sentinel } void Heap::addToStatistics(Heap::Statistics& statistics) const { statistics.size += m_heap.usedBlocks * BLOCK_SIZE; statistics.free += m_heap.usedBlocks * BLOCK_SIZE - (objectCount() * HeapConstants::cellSize); } Heap::Statistics Heap::statistics() const { Statistics statistics = { 0, 0 }; addToStatistics(statistics); return statistics; } size_t Heap::globalObjectCount() { size_t count = 0; if (JSGlobalObject* head = m_globalData->head) { JSGlobalObject* o = head; do { ++count; o = o->next(); } while (o != head); } return count; } size_t Heap::protectedGlobalObjectCount() { size_t count = 0; if (JSGlobalObject* head = m_globalData->head) { JSGlobalObject* o = head; do { if (m_protectedValues.contains(o)) ++count; o = o->next(); } while (o != head); } return count; } size_t Heap::protectedObjectCount() { return m_protectedValues.size(); } static const char* typeName(JSCell* cell) { if (cell->isString()) return "string"; #if USE(JSVALUE32) if (cell->isNumber()) return "number"; #endif if (cell->isGetterSetter()) return "gettersetter"; if (cell->isAPIValueWrapper()) return "value wrapper"; if (cell->isPropertyNameIterator()) return "for-in iterator"; ASSERT(cell->isObject()); const ClassInfo* info = cell->classInfo(); return info ? info->className : "Object"; } HashCountedSet<const char*>* Heap::protectedObjectTypeCounts() { HashCountedSet<const char*>* counts = new HashCountedSet<const char*>; ProtectCountSet::iterator end = m_protectedValues.end(); for (ProtectCountSet::iterator it = m_protectedValues.begin(); it != end; ++it) counts->add(typeName(it->first)); return counts; } bool Heap::isBusy() { return m_heap.operationInProgress != NoOperation; } void Heap::reset() { JAVASCRIPTCORE_GC_BEGIN(); markRoots(); JAVASCRIPTCORE_GC_MARKED(); m_heap.nextCell = 0; m_heap.nextBlock = 0; m_heap.nextNumber = 0; m_heap.extraCost = 0; #if ENABLE(JSC_ZOMBIES) sweep(); #endif resizeBlocks(); JAVASCRIPTCORE_GC_END(); } void Heap::collectAllGarbage() { JAVASCRIPTCORE_GC_BEGIN(); // If the last iteration through the heap deallocated blocks, we need // to clean up remaining garbage before marking. Otherwise, the conservative // marking mechanism might follow a pointer to unmapped memory. if (m_heap.didShrink) sweep(); markRoots(); JAVASCRIPTCORE_GC_MARKED(); m_heap.nextCell = 0; m_heap.nextBlock = 0; m_heap.nextNumber = 0; m_heap.extraCost = 0; sweep(); resizeBlocks(); JAVASCRIPTCORE_GC_END(); } LiveObjectIterator Heap::primaryHeapBegin() { return LiveObjectIterator(m_heap, 0); } LiveObjectIterator Heap::primaryHeapEnd() { return LiveObjectIterator(m_heap, m_heap.usedBlocks); } } // namespace JSC
error 2：
修改
qt-everywhere-opensource-src-4.8.3\src\corelib\thread\qthread_unix.cpp
的117行
#if defined(Q_OS_LINUX) && defined(__GLIBC__) && (defined(Q_CC_GNU) || defined(Q_CC_INTEL))
=>
#if defined(Q_OS_LINUX) && defined(__GLIBC__) && ((defined(Q_CC_GNU) && defined(_GLIBCXX_HAVE_TLS)) || defined(Q_CC_INTEL))