diff -r 000000000000 -r 6474c204b198 js/src/assembler/jit/ExecutableAllocator.cpp
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/js/src/assembler/jit/ExecutableAllocator.cpp	Wed Dec 31 06:09:35 2014 +0100
@@ -0,0 +1,96 @@
+/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 4 -*-
+ * vim: set ts=8 sts=4 et sw=4 tw=99:
+ *
+ * Copyright (C) 2008 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 "assembler/jit/ExecutableAllocator.h"
+
+#include "js/MemoryMetrics.h"
+
+#if ENABLE_ASSEMBLER
+
+namespace JSC {
+
+size_t ExecutableAllocator::pageSize = 0;
+size_t ExecutableAllocator::largeAllocSize = 0;
+
+ExecutablePool::~ExecutablePool()
+{
+    MOZ_ASSERT(m_ionCodeBytes == 0);
+    MOZ_ASSERT(m_baselineCodeBytes == 0);
+    MOZ_ASSERT(m_regexpCodeBytes == 0);
+    MOZ_ASSERT(m_otherCodeBytes == 0);
+
+    m_allocator->releasePoolPages(this);
+}
+
+void
+ExecutableAllocator::addSizeOfCode(JS::CodeSizes *sizes) const
+{
+    if (m_pools.initialized()) {
+        for (ExecPoolHashSet::Range r = m_pools.all(); !r.empty(); r.popFront()) {
+            ExecutablePool* pool = r.front();
+            sizes->ion      += pool->m_ionCodeBytes;
+            sizes->baseline += pool->m_baselineCodeBytes;
+            sizes->regexp   += pool->m_regexpCodeBytes;
+            sizes->other    += pool->m_otherCodeBytes;
+            sizes->unused   += pool->m_allocation.size - pool->m_ionCodeBytes
+                                                       - pool->m_baselineCodeBytes
+                                                       - pool->m_regexpCodeBytes
+                                                       - pool->m_otherCodeBytes;
+        }
+    }
+}
+
+void
+ExecutableAllocator::toggleAllCodeAsAccessible(bool accessible)
+{
+    if (!m_pools.initialized())
+        return;
+
+    for (ExecPoolHashSet::Range r = m_pools.all(); !r.empty(); r.popFront()) {
+        ExecutablePool* pool = r.front();
+        pool->toggleAllCodeAsAccessible(accessible);
+    }
+}
+
+bool
+ExecutableAllocator::codeContains(char* address)
+{
+    if (!m_pools.initialized())
+        return false;
+
+    for (ExecPoolHashSet::Range r = m_pools.all(); !r.empty(); r.popFront()) {
+        ExecutablePool* pool = r.front();
+        if (pool->codeContains(address))
+            return true;
+    }
+
+    return false;
+}
+
+}
+
+#endif // HAVE(ASSEMBLER)