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<title>[191911] branches/safari-601.1.46.7-branch/Source/JavaScriptCore</title>
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<dt>Revision</dt> <dd><a href="http://trac.webkit.org/projects/webkit/changeset/191911">191911</a></dd>
<dt>Author</dt> <dd>bshafiei@apple.com</dd>
<dt>Date</dt> <dd>2015-11-02 14:01:40 -0800 (Mon, 02 Nov 2015)</dd>
</dl>
<h3>Log Message</h3>
<pre>Roll out <a href="http://trac.webkit.org/projects/webkit/changeset/189012">r189012</a>. rdar://problem/22619016</pre>
<h3>Modified Paths</h3>
<ul>
<li><a href="#branchessafari6011467branchSourceJavaScriptCoreChangeLog">branches/safari-601.1.46.7-branch/Source/JavaScriptCore/ChangeLog</a></li>
<li><a href="#branchessafari6011467branchSourceJavaScriptCoreheapMarkedAllocatorcpp">branches/safari-601.1.46.7-branch/Source/JavaScriptCore/heap/MarkedAllocator.cpp</a></li>
</ul>
<h3>Removed Paths</h3>
<ul>
<li><a href="#branchessafari6011467branchSourceJavaScriptCoretestsstressheapallocatorallocatesincorrectsizeforactivationjs">branches/safari-601.1.46.7-branch/Source/JavaScriptCore/tests/stress/heap-allocator-allocates-incorrect-size-for-activation.js</a></li>
</ul>
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<h3>Diff</h3>
<a id="branchessafari6011467branchSourceJavaScriptCoreChangeLog"></a>
<div class="modfile"><h4>Modified: branches/safari-601.1.46.7-branch/Source/JavaScriptCore/ChangeLog (191910 => 191911)</h4>
<pre class="diff"><span>
<span class="info">--- branches/safari-601.1.46.7-branch/Source/JavaScriptCore/ChangeLog 2015-11-02 22:00:31 UTC (rev 191910)
+++ branches/safari-601.1.46.7-branch/Source/JavaScriptCore/ChangeLog 2015-11-02 22:01:40 UTC (rev 191911)
</span><span class="lines">@@ -1,5 +1,9 @@
</span><span class="cx"> 2015-11-02 Babak Shafiei <bshafiei@apple.com>
</span><span class="cx">
</span><ins>+ Roll out r189012.
+
+2015-11-02 Babak Shafiei <bshafiei@apple.com>
+
</ins><span class="cx"> Roll out r188311.
</span><span class="cx">
</span><span class="cx"> 2015-09-16 Babak Shafiei <bshafiei@apple.com>
</span></span></pre></div>
<a id="branchessafari6011467branchSourceJavaScriptCoreheapMarkedAllocatorcpp"></a>
<div class="modfile"><h4>Modified: branches/safari-601.1.46.7-branch/Source/JavaScriptCore/heap/MarkedAllocator.cpp (191910 => 191911)</h4>
<pre class="diff"><span>
<span class="info">--- branches/safari-601.1.46.7-branch/Source/JavaScriptCore/heap/MarkedAllocator.cpp 2015-11-02 22:00:31 UTC (rev 191910)
+++ branches/safari-601.1.46.7-branch/Source/JavaScriptCore/heap/MarkedAllocator.cpp 2015-11-02 22:01:40 UTC (rev 191911)
</span><span class="lines">@@ -175,8 +175,7 @@
</span><span class="cx"> MarkedBlock* MarkedAllocator::allocateBlock(size_t bytes)
</span><span class="cx"> {
</span><span class="cx"> size_t minBlockSize = MarkedBlock::blockSize;
</span><del>- size_t minAllocationSize = WTF::roundUpToMultipleOf<MarkedBlock::atomSize>(sizeof(MarkedBlock)) + WTF::roundUpToMultipleOf<MarkedBlock::atomSize>(bytes);
- minAllocationSize = WTF::roundUpToMultipleOf(WTF::pageSize(), minAllocationSize);
</del><ins>+ size_t minAllocationSize = WTF::roundUpToMultipleOf(WTF::pageSize(), sizeof(MarkedBlock) + bytes);
</ins><span class="cx"> size_t blockSize = std::max(minBlockSize, minAllocationSize);
</span><span class="cx">
</span><span class="cx"> size_t cellSize = m_cellSize ? m_cellSize : WTF::roundUpToMultipleOf<MarkedBlock::atomSize>(bytes);
</span></span></pre></div>
<a id="branchessafari6011467branchSourceJavaScriptCoretestsstressheapallocatorallocatesincorrectsizeforactivationjs"></a>
<div class="delfile"><h4>Deleted: branches/safari-601.1.46.7-branch/Source/JavaScriptCore/tests/stress/heap-allocator-allocates-incorrect-size-for-activation.js (191910 => 191911)</h4>
<pre class="diff"><span>
<span class="info">--- branches/safari-601.1.46.7-branch/Source/JavaScriptCore/tests/stress/heap-allocator-allocates-incorrect-size-for-activation.js 2015-11-02 22:00:31 UTC (rev 191910)
+++ branches/safari-601.1.46.7-branch/Source/JavaScriptCore/tests/stress/heap-allocator-allocates-incorrect-size-for-activation.js 2015-11-02 22:01:40 UTC (rev 191911)
</span><span class="lines">@@ -1,41 +0,0 @@
</span><del>-
-// Consider the following scenario:
-// - On OS X, WTF::pageSize() is 4*1024 bytes.
-// - JSEnvironmentRecord::allocationSizeForScopeSize(6621) == 53000
-// - sizeof(MarkedBlock) == 248
-// - (248 + 53000) is a multiple of 4*1024.
-// - (248 + 53000)/(4*1024) == 13
-
-// We will allocate a chunk of memory of size 53248 bytes that looks like this:
-// 0 248 256 53248 53256
-// [Marked Block | 8 bytes | payload ...... ] 8 bytes |
-// ^ ^
-// Our Environment record starts here. ^
-// ^
-// Our last JSValue in the environment record will go from byte 53248 to 53256. But, we don't own this memory.
-
-var numberOfCapturedVariables = 6621;
-function use() { }
-function makeFunction() {
- var varName;
- var outerFunction = "";
- var innerFunction = "";
-
- for (var i = 0; i < numberOfCapturedVariables; i++) {
- varName = "_" + i;
- outerFunction += "var " + varName + ";";
- innerFunction += "use(" + varName + ");";
- }
- outerFunction += "function foo() {" + innerFunction + "}";
- var functionString = "(function() { " + outerFunction + "})";
- var result = eval(functionString);
- return result;
-}
-
-var arr = [];
-for (var i = 0; i < 50; i++) {
- var f = makeFunction();
- f();
- fullGC();
-}
-
</del></span></pre>
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