Merge branch 'qtwebkit-4.6-staging' into qtscript-jsc-backend

Conflicts:
	src/corelib/tools/qregexp.cpp
	src/script/qscriptengine.cpp
	src/script/qscriptvalue.cpp

13 files changed, 83 insertions, 47 deletions

diff --git a/src/3rdparty/webkit/JavaScriptCore/runtime/ArgList.h b/src/3rdparty/webkit/JavaScriptCore/runtime/ArgList.h
index 4d571fc..0899e85 100644
--- a/src/3rdparty/webkit/JavaScriptCore/runtime/ArgList.h
+++ b/src/3rdparty/webkit/JavaScriptCore/runtime/ArgList.h
@@ -31,7 +31,7 @@
 
 namespace JSC {
     
-    class MarkedArgumentBuffer : Noncopyable {
+    class MarkedArgumentBuffer : public Noncopyable {
     private:
         static const unsigned inlineCapacity = 8;
         typedef Vector<Register, inlineCapacity> VectorType;
diff --git a/src/3rdparty/webkit/JavaScriptCore/runtime/BatchedTransitionOptimizer.h b/src/3rdparty/webkit/JavaScriptCore/runtime/BatchedTransitionOptimizer.h
index 13dd95c..b9f738f 100644
--- a/src/3rdparty/webkit/JavaScriptCore/runtime/BatchedTransitionOptimizer.h
+++ b/src/3rdparty/webkit/JavaScriptCore/runtime/BatchedTransitionOptimizer.h
@@ -32,7 +32,7 @@
 
 namespace JSC {
 
-    class BatchedTransitionOptimizer : Noncopyable {
+    class BatchedTransitionOptimizer : public Noncopyable {
     public:
         BatchedTransitionOptimizer(JSObject* object)
             : m_object(object)
diff --git a/src/3rdparty/webkit/JavaScriptCore/runtime/Collector.cpp b/src/3rdparty/webkit/JavaScriptCore/runtime/Collector.cpp
index f349f23..e1b7bd4 100644
--- a/src/3rdparty/webkit/JavaScriptCore/runtime/Collector.cpp
+++ b/src/3rdparty/webkit/JavaScriptCore/runtime/Collector.cpp
@@ -48,6 +48,11 @@
 #include <mach/thread_act.h>
 #include <mach/vm_map.h>
 
+#elif PLATFORM(SYMBIAN)
+#include <e32std.h>
+#include <e32cmn.h>
+#include <unistd.h>
+
 #elif PLATFORM(WIN_OS)
 
 #include <windows.h>
@@ -103,6 +108,11 @@ const size_t ALLOCATIONS_PER_COLLECTION = 4000;
 // a PIC branch in Mach-O binaries, see <rdar://problem/5971391>.
 #define MIN_ARRAY_SIZE (static_cast<size_t>(14))
 
+#if PLATFORM(SYMBIAN)
+const size_t MAX_NUM_BLOCKS = 256; // Max size of collector heap set to 16 MB
+static RHeap* userChunk = 0;
+#endif
+
 static void freeHeap(CollectorHeap*);
 
 #if ENABLE(JSC_MULTIPLE_THREADS)
@@ -144,6 +154,26 @@ Heap::Heap(JSGlobalData* globalData)
 {
     ASSERT(globalData);
 
+#if PLATFORM(SYMBIAN)
+    // Symbian OpenC supports mmap but currently not the MAP_ANON flag.
+    // Using fastMalloc() does not properly align blocks on 64k boundaries
+    // and previous implementation was flawed/incomplete.
+    // UserHeap::ChunkHeap allows allocation of continuous memory and specification
+    // of alignment value for (symbian) cells within that heap.
+    //
+    // Clarification and mapping of terminology:
+    // RHeap (created by UserHeap::ChunkHeap below) is continuos memory chunk,
+    // which can dynamically grow up to 8 MB,
+    // that holds all CollectorBlocks of this session (static).
+    // Each symbian cell within RHeap maps to a 64kb aligned CollectorBlock.
+    // JSCell objects are maintained as usual within CollectorBlocks.
+    if (!userChunk) {
+        userChunk = UserHeap::ChunkHeap(0, 0, MAX_NUM_BLOCKS * BLOCK_SIZE, BLOCK_SIZE, BLOCK_SIZE);
+        if (!userChunk)
+            CRASH();
+    }
+#endif // PLATFORM(SYMBIAN)
+    
     memset(&primaryHeap, 0, sizeof(CollectorHeap));
     memset(&numberHeap, 0, sizeof(CollectorHeap));
 }
@@ -156,7 +186,7 @@ Heap::~Heap()
 
 void Heap::destroy()
 {
-    JSLock lock(false);
+    JSLock lock(SilenceAssertionsOnly);
 
     if (!m_globalData)
         return;
@@ -201,8 +231,12 @@ static NEVER_INLINE CollectorBlock* allocateBlock()
     // FIXME: tag the region as a JavaScriptCore heap when we get a registered VM tag: <rdar://problem/6054788>.
     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 PLATFORM(SYMBIAN)
-    // no memory map in symbian, need to hack with fastMalloc
-    void* address = fastMalloc(BLOCK_SIZE);
+    // Allocate a 64 kb aligned CollectorBlock
+    unsigned char* mask = reinterpret_cast<unsigned char*>(userChunk->Alloc(BLOCK_SIZE));
+    if (!mask)
+        CRASH();
+    uintptr_t address = reinterpret_cast<uintptr_t>(mask);
+
     memset(reinterpret_cast<void*>(address), 0, BLOCK_SIZE);
 #elif PLATFORM(WIN_OS)
      // windows virtual address granularity is naturally 64k
@@ -247,7 +281,7 @@ static void freeBlock(CollectorBlock* block)
 #if PLATFORM(DARWIN)    
     vm_deallocate(current_task(), reinterpret_cast<vm_address_t>(block), BLOCK_SIZE);
 #elif PLATFORM(SYMBIAN)
-    fastFree(block);
+    userChunk->Free(reinterpret_cast<TAny*>(block));
 #elif PLATFORM(WIN_OS)
     VirtualFree(block, 0, MEM_RELEASE);
 #elif HAVE(POSIX_MEMALIGN)
diff --git a/src/3rdparty/webkit/JavaScriptCore/runtime/Collector.h b/src/3rdparty/webkit/JavaScriptCore/runtime/Collector.h
index 23f9f15..852ac59 100644
--- a/src/3rdparty/webkit/JavaScriptCore/runtime/Collector.h
+++ b/src/3rdparty/webkit/JavaScriptCore/runtime/Collector.h
@@ -63,7 +63,7 @@ namespace JSC {
         OperationInProgress operationInProgress;
     };
 
-    class Heap : Noncopyable {
+    class Heap : public Noncopyable {
     public:
         class Thread;
         typedef CollectorHeapIterator<PrimaryHeap> iterator;
diff --git a/src/3rdparty/webkit/JavaScriptCore/runtime/CommonIdentifiers.h b/src/3rdparty/webkit/JavaScriptCore/runtime/CommonIdentifiers.h
index 408d819..7b275bd 100644
--- a/src/3rdparty/webkit/JavaScriptCore/runtime/CommonIdentifiers.h
+++ b/src/3rdparty/webkit/JavaScriptCore/runtime/CommonIdentifiers.h
@@ -70,7 +70,7 @@
 
 namespace JSC {
 
-    class CommonIdentifiers : Noncopyable {
+    class CommonIdentifiers : public Noncopyable {
     private:
         CommonIdentifiers(JSGlobalData*);
         friend class JSGlobalData;
diff --git a/src/3rdparty/webkit/JavaScriptCore/runtime/Identifier.cpp b/src/3rdparty/webkit/JavaScriptCore/runtime/Identifier.cpp
index 040c123..7db723b 100644
--- a/src/3rdparty/webkit/JavaScriptCore/runtime/Identifier.cpp
+++ b/src/3rdparty/webkit/JavaScriptCore/runtime/Identifier.cpp
@@ -32,7 +32,7 @@ namespace JSC {
 
 typedef HashMap<const char*, RefPtr<UString::Rep>, PtrHash<const char*> > LiteralIdentifierTable;
 
-class IdentifierTable {
+class IdentifierTable : public FastAllocBase {
 public:
     ~IdentifierTable()
     {
diff --git a/src/3rdparty/webkit/JavaScriptCore/runtime/JSCell.h b/src/3rdparty/webkit/JavaScriptCore/runtime/JSCell.h
index e0a9b4d..32aa22b 100644
--- a/src/3rdparty/webkit/JavaScriptCore/runtime/JSCell.h
+++ b/src/3rdparty/webkit/JavaScriptCore/runtime/JSCell.h
@@ -31,7 +31,7 @@
 
 namespace JSC {
 
-    class JSCell : Noncopyable {
+    class JSCell : public NoncopyableCustomAllocated {
         friend class GetterSetter;
         friend class Heap;
         friend class JIT;
diff --git a/src/3rdparty/webkit/JavaScriptCore/runtime/JSGlobalObject.h b/src/3rdparty/webkit/JavaScriptCore/runtime/JSGlobalObject.h
index 983274b..7ab759d 100644
--- a/src/3rdparty/webkit/JavaScriptCore/runtime/JSGlobalObject.h
+++ b/src/3rdparty/webkit/JavaScriptCore/runtime/JSGlobalObject.h
@@ -391,7 +391,7 @@ namespace JSC {
         return globalData().dynamicGlobalObject;
     }
 
-    class DynamicGlobalObjectScope : Noncopyable {
+    class DynamicGlobalObjectScope : public Noncopyable {
     public:
         DynamicGlobalObjectScope(CallFrame* callFrame, JSGlobalObject* dynamicGlobalObject) 
             : m_dynamicGlobalObjectSlot(callFrame->globalData().dynamicGlobalObject)
diff --git a/src/3rdparty/webkit/JavaScriptCore/runtime/JSLock.cpp b/src/3rdparty/webkit/JavaScriptCore/runtime/JSLock.cpp
index 7ece5da..8f056c8 100644
--- a/src/3rdparty/webkit/JavaScriptCore/runtime/JSLock.cpp
+++ b/src/3rdparty/webkit/JavaScriptCore/runtime/JSLock.cpp
@@ -60,23 +60,23 @@ static void setLockCount(intptr_t count)
 }
 
 JSLock::JSLock(ExecState* exec)
-    : m_lockingForReal(exec->globalData().isSharedInstance)
+    : m_lockBehavior(exec->globalData().isSharedInstance ? LockForReal : SilenceAssertionsOnly)
 {
-    lock(m_lockingForReal);
+    lock(m_lockBehavior);
 }
 
-void JSLock::lock(bool lockForReal)
+void JSLock::lock(JSLockBehavior lockBehavior)
 {
 #ifdef NDEBUG
     // Locking "not for real" is a debug-only feature.
-    if (!lockForReal)
+    if (lockBehavior == SilenceAssertionsOnly)
         return;
 #endif
 
     pthread_once(&createJSLockCountOnce, createJSLockCount);
 
     intptr_t currentLockCount = lockCount();
-    if (!currentLockCount && lockForReal) {
+    if (!currentLockCount && lockBehavior == LockForReal) {
         int result;
         result = pthread_mutex_lock(&JSMutex);
         ASSERT(!result);
@@ -84,19 +84,19 @@ void JSLock::lock(bool lockForReal)
     setLockCount(currentLockCount + 1);
 }
 
-void JSLock::unlock(bool lockForReal)
+void JSLock::unlock(JSLockBehavior lockBehavior)
 {
     ASSERT(lockCount());
 
 #ifdef NDEBUG
     // Locking "not for real" is a debug-only feature.
-    if (!lockForReal)
+    if (lockBehavior == SilenceAssertionsOnly)
         return;
 #endif
 
     intptr_t newLockCount = lockCount() - 1;
     setLockCount(newLockCount);
-    if (!newLockCount && lockForReal) {
+    if (!newLockCount && lockBehavior == LockForReal) {
         int result;
         result = pthread_mutex_unlock(&JSMutex);
         ASSERT(!result);
@@ -105,12 +105,12 @@ void JSLock::unlock(bool lockForReal)
 
 void JSLock::lock(ExecState* exec)
 {
-    lock(exec->globalData().isSharedInstance);
+    lock(exec->globalData().isSharedInstance ? LockForReal : SilenceAssertionsOnly);
 }
 
 void JSLock::unlock(ExecState* exec)
 {
-    unlock(exec->globalData().isSharedInstance);
+    unlock(exec->globalData().isSharedInstance ? LockForReal : SilenceAssertionsOnly);
 }
 
 bool JSLock::currentThreadIsHoldingLock()
@@ -162,7 +162,7 @@ bool JSLock::currentThreadIsHoldingLock()
 static unsigned lockDropDepth = 0;
 
 JSLock::DropAllLocks::DropAllLocks(ExecState* exec)
-    : m_lockingForReal(exec->globalData().isSharedInstance)
+    : m_lockBehavior(exec->globalData().isSharedInstance ? LockForReal : SilenceAssertionsOnly)
 {
     pthread_once(&createJSLockCountOnce, createJSLockCount);
 
@@ -173,11 +173,11 @@ JSLock::DropAllLocks::DropAllLocks(ExecState* exec)
 
     m_lockCount = JSLock::lockCount();
     for (intptr_t i = 0; i < m_lockCount; i++)
-        JSLock::unlock(m_lockingForReal);
+        JSLock::unlock(m_lockBehavior);
 }
 
-JSLock::DropAllLocks::DropAllLocks(bool lockingForReal)
-    : m_lockingForReal(lockingForReal)
+JSLock::DropAllLocks::DropAllLocks(JSLockBehavior JSLockBehavior)
+    : m_lockBehavior(JSLockBehavior)
 {
     pthread_once(&createJSLockCountOnce, createJSLockCount);
 
@@ -191,13 +191,13 @@ JSLock::DropAllLocks::DropAllLocks(bool lockingForReal)
 
     m_lockCount = JSLock::lockCount();
     for (intptr_t i = 0; i < m_lockCount; i++)
-        JSLock::unlock(m_lockingForReal);
+        JSLock::unlock(m_lockBehavior);
 }
 
 JSLock::DropAllLocks::~DropAllLocks()
 {
     for (intptr_t i = 0; i < m_lockCount; i++)
-        JSLock::lock(m_lockingForReal);
+        JSLock::lock(m_lockBehavior);
 
     --lockDropDepth;
 }
@@ -205,7 +205,7 @@ JSLock::DropAllLocks::~DropAllLocks()
 #else
 
 JSLock::JSLock(ExecState*)
-    : m_lockingForReal(false)
+    : m_lockBehavior(SilenceAssertionsOnly)
 {
 }
 
@@ -221,11 +221,11 @@ bool JSLock::currentThreadIsHoldingLock()
     return true;
 }
 
-void JSLock::lock(bool)
+void JSLock::lock(JSLockBehavior)
 {
 }
 
-void JSLock::unlock(bool)
+void JSLock::unlock(JSLockBehavior)
 {
 }
 
@@ -241,7 +241,7 @@ JSLock::DropAllLocks::DropAllLocks(ExecState*)
 {
 }
 
-JSLock::DropAllLocks::DropAllLocks(bool)
+JSLock::DropAllLocks::DropAllLocks(JSLockBehavior)
 {
 }
 
diff --git a/src/3rdparty/webkit/JavaScriptCore/runtime/JSLock.h b/src/3rdparty/webkit/JavaScriptCore/runtime/JSLock.h
index 3dde358..8b015c4 100644
--- a/src/3rdparty/webkit/JavaScriptCore/runtime/JSLock.h
+++ b/src/3rdparty/webkit/JavaScriptCore/runtime/JSLock.h
@@ -50,50 +50,52 @@ namespace JSC {
 
     class ExecState;
 
-    class JSLock : Noncopyable {
+    enum JSLockBehavior { SilenceAssertionsOnly, LockForReal };
+
+    class JSLock : public Noncopyable {
     public:
         JSLock(ExecState*);
 
-        JSLock(bool lockingForReal)
-            : m_lockingForReal(lockingForReal)
+        JSLock(JSLockBehavior lockBehavior)
+            : m_lockBehavior(lockBehavior)
         {
 #ifdef NDEBUG
             // Locking "not for real" is a debug-only feature.
-            if (!lockingForReal)
+            if (lockBehavior == SilenceAssertionsOnly)
                 return;
 #endif
-            lock(lockingForReal);
+            lock(lockBehavior);
         }
 
         ~JSLock()
         { 
 #ifdef NDEBUG
             // Locking "not for real" is a debug-only feature.
-            if (!m_lockingForReal)
+            if (m_lockBehavior == SilenceAssertionsOnly)
                 return;
 #endif
-            unlock(m_lockingForReal); 
+            unlock(m_lockBehavior); 
         }
         
-        static void lock(bool);
-        static void unlock(bool);
+        static void lock(JSLockBehavior);
+        static void unlock(JSLockBehavior);
         static void lock(ExecState*);
         static void unlock(ExecState*);
 
         static intptr_t lockCount();
         static bool currentThreadIsHoldingLock();
 
-        bool m_lockingForReal;
+        JSLockBehavior m_lockBehavior;
 
-        class DropAllLocks : Noncopyable {
+        class DropAllLocks : public Noncopyable {
         public:
             DropAllLocks(ExecState* exec);
-            DropAllLocks(bool);
+            DropAllLocks(JSLockBehavior);
             ~DropAllLocks();
             
         private:
             intptr_t m_lockCount;
-            bool m_lockingForReal;
+            JSLockBehavior m_lockBehavior;
         };
     };
 
diff --git a/src/3rdparty/webkit/JavaScriptCore/runtime/JSONObject.cpp b/src/3rdparty/webkit/JavaScriptCore/runtime/JSONObject.cpp
index 4a89c55..2f02b1d 100644
--- a/src/3rdparty/webkit/JavaScriptCore/runtime/JSONObject.cpp
+++ b/src/3rdparty/webkit/JavaScriptCore/runtime/JSONObject.cpp
@@ -61,7 +61,7 @@ private:
     mutable JSValue m_value;
 };
 
-class Stringifier : Noncopyable {
+class Stringifier : public Noncopyable {
 public:
     Stringifier(ExecState*, JSValue replacer, JSValue space);
     ~Stringifier();
diff --git a/src/3rdparty/webkit/JavaScriptCore/runtime/SmallStrings.cpp b/src/3rdparty/webkit/JavaScriptCore/runtime/SmallStrings.cpp
index 87b49f0..9d1f01a 100644
--- a/src/3rdparty/webkit/JavaScriptCore/runtime/SmallStrings.cpp
+++ b/src/3rdparty/webkit/JavaScriptCore/runtime/SmallStrings.cpp
@@ -34,7 +34,7 @@
 namespace JSC {
 static const unsigned numCharactersToStore = 0x100;
 
-class SmallStringsStorage : Noncopyable {
+class SmallStringsStorage : public Noncopyable {
 public:
     SmallStringsStorage();
 
diff --git a/src/3rdparty/webkit/JavaScriptCore/runtime/SmallStrings.h b/src/3rdparty/webkit/JavaScriptCore/runtime/SmallStrings.h
index e7f1170..f0dd8df 100644
--- a/src/3rdparty/webkit/JavaScriptCore/runtime/SmallStrings.h
+++ b/src/3rdparty/webkit/JavaScriptCore/runtime/SmallStrings.h
@@ -36,7 +36,7 @@ namespace JSC {
 
     class SmallStringsStorage;
 
-    class SmallStrings : Noncopyable {
+    class SmallStrings : public Noncopyable {
     public:
         SmallStrings();
         ~SmallStrings();