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<dt>Revision</dt> <dd><a href="http://trac.webkit.org/projects/webkit/changeset/178284">178284</a></dd>
<dt>Author</dt> <dd>commit-queue@webkit.org</dd>
<dt>Date</dt> <dd>2015-01-12 10:26:11 -0800 (Mon, 12 Jan 2015)</dd>
</dl>
<h3>Log Message</h3>
<pre>Unreviewed, rolling out <a href="http://trac.webkit.org/projects/webkit/changeset/178266">r178266</a>.
https://bugs.webkit.org/show_bug.cgi?id=140363
Broke a JSC test (Requested by ap on #webkit).
Reverted changeset:
"Local JSArray* "keys" in objectConstructorKeys() is not
marked during garbage collection"
https://bugs.webkit.org/show_bug.cgi?id=140348
http://trac.webkit.org/changeset/178266</pre>
<h3>Modified Paths</h3>
<ul>
<li><a href="#trunkSourceJavaScriptCoreChangeLog">trunk/Source/JavaScriptCore/ChangeLog</a></li>
<li><a href="#trunkSourceJavaScriptCoreheapHeapcpp">trunk/Source/JavaScriptCore/heap/Heap.cpp</a></li>
<li><a href="#trunkSourceJavaScriptCoreheapHeaph">trunk/Source/JavaScriptCore/heap/Heap.h</a></li>
<li><a href="#trunkSourceJavaScriptCoreheapMachineStackMarkercpp">trunk/Source/JavaScriptCore/heap/MachineStackMarker.cpp</a></li>
<li><a href="#trunkSourceJavaScriptCoreheapMachineStackMarkerh">trunk/Source/JavaScriptCore/heap/MachineStackMarker.h</a></li>
</ul>
</div>
<div id="patch">
<h3>Diff</h3>
<a id="trunkSourceJavaScriptCoreChangeLog"></a>
<div class="modfile"><h4>Modified: trunk/Source/JavaScriptCore/ChangeLog (178283 => 178284)</h4>
<pre class="diff"><span>
<span class="info">--- trunk/Source/JavaScriptCore/ChangeLog 2015-01-12 18:20:12 UTC (rev 178283)
+++ trunk/Source/JavaScriptCore/ChangeLog 2015-01-12 18:26:11 UTC (rev 178284)
</span><span class="lines">@@ -1,3 +1,17 @@
</span><ins>+2015-01-12 Commit Queue <commit-queue@webkit.org>
+
+ Unreviewed, rolling out r178266.
+ https://bugs.webkit.org/show_bug.cgi?id=140363
+
+ Broke a JSC test (Requested by ap on #webkit).
+
+ Reverted changeset:
+
+ "Local JSArray* "keys" in objectConstructorKeys() is not
+ marked during garbage collection"
+ https://bugs.webkit.org/show_bug.cgi?id=140348
+ http://trac.webkit.org/changeset/178266
+
</ins><span class="cx"> 2015-01-12 Michael Saboff <msaboff@apple.com>
</span><span class="cx">
</span><span class="cx"> Local JSArray* "keys" in objectConstructorKeys() is not marked during garbage collection
</span></span></pre></div>
<a id="trunkSourceJavaScriptCoreheapHeapcpp"></a>
<div class="modfile"><h4>Modified: trunk/Source/JavaScriptCore/heap/Heap.cpp (178283 => 178284)</h4>
<pre class="diff"><span>
<span class="info">--- trunk/Source/JavaScriptCore/heap/Heap.cpp 2015-01-12 18:20:12 UTC (rev 178283)
+++ trunk/Source/JavaScriptCore/heap/Heap.cpp 2015-01-12 18:26:11 UTC (rev 178284)
</span><span class="lines">@@ -504,8 +504,9 @@
</span><span class="cx">
</span><span class="cx"> // We gather conservative roots before clearing mark bits because conservative
</span><span class="cx"> // gathering uses the mark bits to determine whether a reference is valid.
</span><ins>+ void* dummy;
</ins><span class="cx"> ConservativeRoots conservativeRoots(&m_objectSpace.blocks(), &m_storageSpace);
</span><del>- gatherStackRoots(conservativeRoots);
</del><ins>+ gatherStackRoots(conservativeRoots, &dummy);
</ins><span class="cx"> gatherJSStackRoots(conservativeRoots);
</span><span class="cx"> gatherScratchBufferRoots(conservativeRoots);
</span><span class="cx">
</span><span class="lines">@@ -565,11 +566,11 @@
</span><span class="cx"> m_storageSpace.doneCopying();
</span><span class="cx"> }
</span><span class="cx">
</span><del>-void Heap::gatherStackRoots(ConservativeRoots& roots)
</del><ins>+void Heap::gatherStackRoots(ConservativeRoots& roots, void** dummy)
</ins><span class="cx"> {
</span><span class="cx"> GCPHASE(GatherStackRoots);
</span><span class="cx"> m_jitStubRoutines.clearMarks();
</span><del>- m_machineThreads.gatherConservativeRoots(roots, m_jitStubRoutines, m_codeBlocks);
</del><ins>+ m_machineThreads.gatherConservativeRoots(roots, m_jitStubRoutines, m_codeBlocks, dummy);
</ins><span class="cx"> }
</span><span class="cx">
</span><span class="cx"> void Heap::gatherJSStackRoots(ConservativeRoots& roots)
</span></span></pre></div>
<a id="trunkSourceJavaScriptCoreheapHeaph"></a>
<div class="modfile"><h4>Modified: trunk/Source/JavaScriptCore/heap/Heap.h (178283 => 178284)</h4>
<pre class="diff"><span>
<span class="info">--- trunk/Source/JavaScriptCore/heap/Heap.h 2015-01-12 18:20:12 UTC (rev 178283)
+++ trunk/Source/JavaScriptCore/heap/Heap.h 2015-01-12 18:26:11 UTC (rev 178284)
</span><span class="lines">@@ -275,7 +275,7 @@
</span><span class="cx"> void stopAllocation();
</span><span class="cx">
</span><span class="cx"> void markRoots(double gcStartTime);
</span><del>- void gatherStackRoots(ConservativeRoots&);
</del><ins>+ void gatherStackRoots(ConservativeRoots&, void** dummy);
</ins><span class="cx"> void gatherJSStackRoots(ConservativeRoots&);
</span><span class="cx"> void gatherScratchBufferRoots(ConservativeRoots&);
</span><span class="cx"> void clearLivenessData();
</span></span></pre></div>
<a id="trunkSourceJavaScriptCoreheapMachineStackMarkercpp"></a>
<div class="modfile"><h4>Modified: trunk/Source/JavaScriptCore/heap/MachineStackMarker.cpp (178283 => 178284)</h4>
<pre class="diff"><span>
<span class="info">--- trunk/Source/JavaScriptCore/heap/MachineStackMarker.cpp 2015-01-12 18:20:12 UTC (rev 178283)
+++ trunk/Source/JavaScriptCore/heap/MachineStackMarker.cpp 2015-01-12 18:26:11 UTC (rev 178284)
</span><span class="lines">@@ -221,11 +221,10 @@
</span><span class="cx"> #define REGISTER_BUFFER_ALIGNMENT
</span><span class="cx"> #endif
</span><span class="cx">
</span><del>-void MachineThreads::gatherFromCurrentThread(ConservativeRoots& conservativeRoots, JITStubRoutineSet& jitStubRoutines, CodeBlockSet& codeBlocks)
</del><ins>+void MachineThreads::gatherFromCurrentThread(ConservativeRoots& conservativeRoots, JITStubRoutineSet& jitStubRoutines, CodeBlockSet& codeBlocks, void* stackCurrent)
</ins><span class="cx"> {
</span><span class="cx"> // setjmp forces volatile registers onto the stack
</span><span class="cx"> jmp_buf registers REGISTER_BUFFER_ALIGNMENT;
</span><del>-
</del><span class="cx"> #if COMPILER(MSVC)
</span><span class="cx"> #pragma warning(push)
</span><span class="cx"> #pragma warning(disable: 4611)
</span><span class="lines">@@ -239,9 +238,7 @@
</span><span class="cx"> void* registersEnd = reinterpret_cast<void*>(roundUpToMultipleOf<sizeof(void*)>(reinterpret_cast<uintptr_t>(&registers + 1)));
</span><span class="cx"> conservativeRoots.add(registersBegin, registersEnd, jitStubRoutines, codeBlocks);
</span><span class="cx">
</span><del>- // We need to mark the stack top in this function so that callee saves are either already on the stack,
- // or will be saved in registers.
- void* stackBegin = &registers;
</del><ins>+ void* stackBegin = stackCurrent;
</ins><span class="cx"> void* stackEnd = wtfThreadData().stack().origin();
</span><span class="cx"> conservativeRoots.add(stackBegin, stackEnd, jitStubRoutines, codeBlocks);
</span><span class="cx"> }
</span><span class="lines">@@ -448,9 +445,9 @@
</span><span class="cx"> freePlatformThreadRegisters(regs);
</span><span class="cx"> }
</span><span class="cx">
</span><del>-void MachineThreads::gatherConservativeRoots(ConservativeRoots& conservativeRoots, JITStubRoutineSet& jitStubRoutines, CodeBlockSet& codeBlocks)
</del><ins>+void MachineThreads::gatherConservativeRoots(ConservativeRoots& conservativeRoots, JITStubRoutineSet& jitStubRoutines, CodeBlockSet& codeBlocks, void* stackCurrent)
</ins><span class="cx"> {
</span><del>- gatherFromCurrentThread(conservativeRoots, jitStubRoutines, codeBlocks);
</del><ins>+ gatherFromCurrentThread(conservativeRoots, jitStubRoutines, codeBlocks, stackCurrent);
</ins><span class="cx">
</span><span class="cx"> if (m_threadSpecific) {
</span><span class="cx"> PlatformThread currentPlatformThread = getCurrentPlatformThread();
</span></span></pre></div>
<a id="trunkSourceJavaScriptCoreheapMachineStackMarkerh"></a>
<div class="modfile"><h4>Modified: trunk/Source/JavaScriptCore/heap/MachineStackMarker.h (178283 => 178284)</h4>
<pre class="diff"><span>
<span class="info">--- trunk/Source/JavaScriptCore/heap/MachineStackMarker.h 2015-01-12 18:20:12 UTC (rev 178283)
+++ trunk/Source/JavaScriptCore/heap/MachineStackMarker.h 2015-01-12 18:26:11 UTC (rev 178284)
</span><span class="lines">@@ -39,13 +39,13 @@
</span><span class="cx"> MachineThreads(Heap*);
</span><span class="cx"> ~MachineThreads();
</span><span class="cx">
</span><del>- void gatherConservativeRoots(ConservativeRoots&, JITStubRoutineSet&, CodeBlockSet&);
</del><ins>+ void gatherConservativeRoots(ConservativeRoots&, JITStubRoutineSet&, CodeBlockSet&, void* stackCurrent);
</ins><span class="cx">
</span><span class="cx"> JS_EXPORT_PRIVATE void makeUsableFromMultipleThreads();
</span><span class="cx"> JS_EXPORT_PRIVATE void addCurrentThread(); // Only needs to be called by clients that can use the same heap from multiple threads.
</span><span class="cx">
</span><span class="cx"> private:
</span><del>- void gatherFromCurrentThread(ConservativeRoots&, JITStubRoutineSet&, CodeBlockSet&);
</del><ins>+ void gatherFromCurrentThread(ConservativeRoots&, JITStubRoutineSet&, CodeBlockSet&, void* stackCurrent);
</ins><span class="cx">
</span><span class="cx"> class Thread;
</span><span class="cx">
</span></span></pre>
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