webkitgtk-2.10.2webkitgtk-2.10.2

1 files changed, 93 insertions, 0 deletions

diff --git a/Source/JavaScriptCore/ftl/FTLAbstractHeapRepository.cpp b/Source/JavaScriptCore/ftl/FTLAbstractHeapRepository.cpp
new file mode 100644
index 000000000..e416fdaaf
--- /dev/null
+++ b/Source/JavaScriptCore/ftl/FTLAbstractHeapRepository.cpp
@@ -0,0 +1,93 @@
+/*
+ * Copyright (C) 2013-2015 Apple Inc. All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ *
+ * THIS SOFTWARE IS PROVIDED BY APPLE INC. ``AS IS'' AND ANY
+ * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
+ * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL APPLE INC. OR
+ * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
+ * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
+ * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
+ * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY
+ * OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+ * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 
+ */
+
+#include "config.h"
+#include "FTLAbstractHeapRepository.h"
+
+#if ENABLE(FTL_JIT)
+
+#include "DirectArguments.h"
+#include "GetterSetter.h"
+#include "JSEnvironmentRecord.h"
+#include "JSPropertyNameEnumerator.h"
+#include "JSScope.h"
+#include "JSCInlines.h"
+#include "ScopedArguments.h"
+#include "ScopedArgumentsTable.h"
+
+namespace JSC { namespace FTL {
+
+AbstractHeapRepository::AbstractHeapRepository(LContext context)
+    : root(0, "jscRoot")
+
+#define ABSTRACT_HEAP_INITIALIZATION(name) , name(&root, #name)
+    FOR_EACH_ABSTRACT_HEAP(ABSTRACT_HEAP_INITIALIZATION)
+#undef ABSTRACT_HEAP_INITIALIZATION
+
+#define ABSTRACT_FIELD_INITIALIZATION(name, offset) , name(&root, #name, offset)
+    FOR_EACH_ABSTRACT_FIELD(ABSTRACT_FIELD_INITIALIZATION)
+#undef ABSTRACT_FIELD_INITIALIZATION
+    
+    , JSCell_freeListNext(JSCell_structureID)
+    
+#define INDEXED_ABSTRACT_HEAP_INITIALIZATION(name, offset, size) , name(context, &root, #name, offset, size)
+    FOR_EACH_INDEXED_ABSTRACT_HEAP(INDEXED_ABSTRACT_HEAP_INITIALIZATION)
+#undef INDEXED_ABSTRACT_HEAP_INITIALIZATION
+    
+#define NUMBERED_ABSTRACT_HEAP_INITIALIZATION(name) , name(context, &root, #name)
+    FOR_EACH_NUMBERED_ABSTRACT_HEAP(NUMBERED_ABSTRACT_HEAP_INITIALIZATION)
+#undef NUMBERED_ABSTRACT_HEAP_INITIALIZATION
+
+    , absolute(context, &root, "absolute")
+    , m_context(context)
+    , m_tbaaKind(mdKindID(m_context, "tbaa"))
+{
+    // Make sure that our explicit assumptions about the StructureIDBlob match reality.
+    RELEASE_ASSERT(!(JSCell_indexingType.offset() & (sizeof(int32_t) - 1)));
+    RELEASE_ASSERT(JSCell_indexingType.offset() + 1 == JSCell_typeInfoType.offset());
+    RELEASE_ASSERT(JSCell_indexingType.offset() + 2 == JSCell_typeInfoFlags.offset());
+    RELEASE_ASSERT(JSCell_indexingType.offset() + 3 == JSCell_gcData.offset());
+
+    JSCell_indexingType.changeParent(&JSCell_usefulBytes);
+    JSCell_typeInfoType.changeParent(&JSCell_usefulBytes);
+    JSCell_typeInfoFlags.changeParent(&JSCell_usefulBytes);
+    JSCell_gcData.changeParent(&JSCell_usefulBytes);
+    
+    root.m_tbaaMetadata = mdNode(m_context, mdString(m_context, root.m_heapName));
+    
+    RELEASE_ASSERT(m_tbaaKind);
+    RELEASE_ASSERT(root.m_tbaaMetadata);
+    
+    RELEASE_ASSERT(!JSCell_freeListNext.offset());
+}
+
+AbstractHeapRepository::~AbstractHeapRepository()
+{
+}
+
+} } // namespace JSC::FTL
+
+#endif // ENABLE(FTL_JIT)
+