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<dl class="meta">
<dt>Revision</dt> <dd><a href="http://trac.webkit.org/projects/webkit/changeset/191910">191910</a></dd>
<dt>Author</dt> <dd>bshafiei@apple.com</dd>
<dt>Date</dt> <dd>2015-11-02 14:00:31 -0800 (Mon, 02 Nov 2015)</dd>
</dl>

<h3>Log Message</h3>
<pre>Roll out <a href="http://trac.webkit.org/projects/webkit/changeset/188311">r188311</a>. rdar://problem/22618975</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="#branchessafari6011467branchSourceJavaScriptCoredfgDFGOSREntrycpp">branches/safari-601.1.46.7-branch/Source/JavaScriptCore/dfg/DFGOSREntry.cpp</a></li>
<li><a href="#branchessafari6011467branchSourceJavaScriptCoreftlFTLOSREntrycpp">branches/safari-601.1.46.7-branch/Source/JavaScriptCore/ftl/FTLOSREntry.cpp</a></li>
<li><a href="#branchessafari6011467branchSourceJavaScriptCoreheapConservativeRootscpp">branches/safari-601.1.46.7-branch/Source/JavaScriptCore/heap/ConservativeRoots.cpp</a></li>
<li><a href="#branchessafari6011467branchSourceJavaScriptCoreheapMachineStackMarkercpp">branches/safari-601.1.46.7-branch/Source/JavaScriptCore/heap/MachineStackMarker.cpp</a></li>
<li><a href="#branchessafari6011467branchSourceJavaScriptCoreinterpreterRegisterh">branches/safari-601.1.46.7-branch/Source/JavaScriptCore/interpreter/Register.h</a></li>
<li><a href="#branchessafari6011467branchSourceWTFwtfCompilerh">branches/safari-601.1.46.7-branch/Source/WTF/wtf/Compiler.h</a></li>
<li><a href="#branchessafari6011467branchToolsChangeLog">branches/safari-601.1.46.7-branch/Tools/ChangeLog</a></li>
<li><a href="#branchessafari6011467branchToolsasanasanxcconfig">branches/safari-601.1.46.7-branch/Tools/asan/asan.xcconfig</a></li>
</ul>

<h3>Added Paths</h3>
<ul>
<li><a href="#branchessafari6011467branchToolsasanwebkitasanignoretxt">branches/safari-601.1.46.7-branch/Tools/asan/webkit-asan-ignore.txt</a></li>
</ul>

</div>
<div id="patch">
<h3>Diff</h3>
<a id="branchessafari6011467branchSourceJavaScriptCoreChangeLog"></a>
<div class="modfile"><h4>Modified: branches/safari-601.1.46.7-branch/Source/JavaScriptCore/ChangeLog (191909 => 191910)</h4>
<pre class="diff"><span>
<span class="info">--- branches/safari-601.1.46.7-branch/Source/JavaScriptCore/ChangeLog        2015-11-02 21:49:14 UTC (rev 191909)
+++ branches/safari-601.1.46.7-branch/Source/JavaScriptCore/ChangeLog        2015-11-02 22:00:31 UTC (rev 191910)
</span><span class="lines">@@ -1,3 +1,7 @@
</span><ins>+2015-11-02  Babak Shafiei  &lt;bshafiei@apple.com&gt;
+
+        Roll out r188311.
+
</ins><span class="cx"> 2015-09-16  Babak Shafiei  &lt;bshafiei@apple.com&gt;
</span><span class="cx"> 
</span><span class="cx">         Merge r188311.
</span></span></pre></div>
<a id="branchessafari6011467branchSourceJavaScriptCoredfgDFGOSREntrycpp"></a>
<div class="modfile"><h4>Modified: branches/safari-601.1.46.7-branch/Source/JavaScriptCore/dfg/DFGOSREntry.cpp (191909 => 191910)</h4>
<pre class="diff"><span>
<span class="info">--- branches/safari-601.1.46.7-branch/Source/JavaScriptCore/dfg/DFGOSREntry.cpp        2015-11-02 21:49:14 UTC (rev 191909)
+++ branches/safari-601.1.46.7-branch/Source/JavaScriptCore/dfg/DFGOSREntry.cpp        2015-11-02 22:00:31 UTC (rev 191910)
</span><span class="lines">@@ -90,7 +90,6 @@
</span><span class="cx">     dumpInContext(out, nullptr);
</span><span class="cx"> }
</span><span class="cx"> 
</span><del>-SUPPRESS_ASAN
</del><span class="cx"> void* prepareOSREntry(ExecState* exec, CodeBlock* codeBlock, unsigned bytecodeIndex)
</span><span class="cx"> {
</span><span class="cx">     ASSERT(JITCode::isOptimizingJIT(codeBlock-&gt;jitType()));
</span><span class="lines">@@ -203,33 +202,33 @@
</span><span class="cx">     for (size_t local = 0; local &lt; entry-&gt;m_expectedValues.numberOfLocals(); ++local) {
</span><span class="cx">         int localOffset = virtualRegisterForLocal(local).offset();
</span><span class="cx">         if (entry-&gt;m_localsForcedDouble.get(local)) {
</span><del>-            if (!exec-&gt;registers()[localOffset].asanUnsafeJSValue().isNumber()) {
</del><ins>+            if (!exec-&gt;registers()[localOffset].jsValue().isNumber()) {
</ins><span class="cx">                 if (Options::verboseOSR()) {
</span><span class="cx">                     dataLog(
</span><span class="cx">                         &quot;    OSR failed because variable &quot;, localOffset, &quot; is &quot;,
</span><del>-                        exec-&gt;registers()[localOffset].asanUnsafeJSValue(), &quot;, expected number.\n&quot;);
</del><ins>+                        exec-&gt;registers()[localOffset].jsValue(), &quot;, expected number.\n&quot;);
</ins><span class="cx">                 }
</span><span class="cx">                 return 0;
</span><span class="cx">             }
</span><span class="cx">             continue;
</span><span class="cx">         }
</span><span class="cx">         if (entry-&gt;m_localsForcedMachineInt.get(local)) {
</span><del>-            if (!exec-&gt;registers()[localOffset].asanUnsafeJSValue().isMachineInt()) {
</del><ins>+            if (!exec-&gt;registers()[localOffset].jsValue().isMachineInt()) {
</ins><span class="cx">                 if (Options::verboseOSR()) {
</span><span class="cx">                     dataLog(
</span><span class="cx">                         &quot;    OSR failed because variable &quot;, localOffset, &quot; is &quot;,
</span><del>-                        exec-&gt;registers()[localOffset].asanUnsafeJSValue(), &quot;, expected &quot;,
</del><ins>+                        exec-&gt;registers()[localOffset].jsValue(), &quot;, expected &quot;,
</ins><span class="cx">                         &quot;machine int.\n&quot;);
</span><span class="cx">                 }
</span><span class="cx">                 return 0;
</span><span class="cx">             }
</span><span class="cx">             continue;
</span><span class="cx">         }
</span><del>-        if (!entry-&gt;m_expectedValues.local(local).validate(exec-&gt;registers()[localOffset].asanUnsafeJSValue())) {
</del><ins>+        if (!entry-&gt;m_expectedValues.local(local).validate(exec-&gt;registers()[localOffset].jsValue())) {
</ins><span class="cx">             if (Options::verboseOSR()) {
</span><span class="cx">                 dataLog(
</span><span class="cx">                     &quot;    OSR failed because variable &quot;, localOffset, &quot; is &quot;,
</span><del>-                    exec-&gt;registers()[localOffset].asanUnsafeJSValue(), &quot;, expected &quot;,
</del><ins>+                    exec-&gt;registers()[localOffset].jsValue(), &quot;, expected &quot;,
</ins><span class="cx">                     entry-&gt;m_expectedValues.local(local), &quot;.\n&quot;);
</span><span class="cx">             }
</span><span class="cx">             return 0;
</span><span class="lines">@@ -281,23 +280,23 @@
</span><span class="cx">         
</span><span class="cx">         if (reg.isLocal()) {
</span><span class="cx">             if (entry-&gt;m_localsForcedDouble.get(reg.toLocal())) {
</span><del>-                *bitwise_cast&lt;double*&gt;(pivot + index) = exec-&gt;registers()[reg.offset()].asanUnsafeJSValue().asNumber();
</del><ins>+                *bitwise_cast&lt;double*&gt;(pivot + index) = exec-&gt;registers()[reg.offset()].jsValue().asNumber();
</ins><span class="cx">                 continue;
</span><span class="cx">             }
</span><span class="cx">             
</span><span class="cx">             if (entry-&gt;m_localsForcedMachineInt.get(reg.toLocal())) {
</span><del>-                *bitwise_cast&lt;int64_t*&gt;(pivot + index) = exec-&gt;registers()[reg.offset()].asanUnsafeJSValue().asMachineInt() &lt;&lt; JSValue::int52ShiftAmount;
</del><ins>+                *bitwise_cast&lt;int64_t*&gt;(pivot + index) = exec-&gt;registers()[reg.offset()].jsValue().asMachineInt() &lt;&lt; JSValue::int52ShiftAmount;
</ins><span class="cx">                 continue;
</span><span class="cx">             }
</span><span class="cx">         }
</span><span class="cx">         
</span><del>-        pivot[index] = exec-&gt;registers()[reg.offset()].asanUnsafeJSValue();
</del><ins>+        pivot[index] = exec-&gt;registers()[reg.offset()].jsValue();
</ins><span class="cx">     }
</span><span class="cx">     
</span><span class="cx">     // 4) Reshuffle those registers that need reshuffling.
</span><span class="cx">     Vector&lt;JSValue&gt; temporaryLocals(entry-&gt;m_reshufflings.size());
</span><span class="cx">     for (unsigned i = entry-&gt;m_reshufflings.size(); i--;)
</span><del>-        temporaryLocals[i] = pivot[VirtualRegister(entry-&gt;m_reshufflings[i].fromOffset).toLocal()].asanUnsafeJSValue();
</del><ins>+        temporaryLocals[i] = pivot[VirtualRegister(entry-&gt;m_reshufflings[i].fromOffset).toLocal()].jsValue();
</ins><span class="cx">     for (unsigned i = entry-&gt;m_reshufflings.size(); i--;)
</span><span class="cx">         pivot[VirtualRegister(entry-&gt;m_reshufflings[i].toOffset).toLocal()] = temporaryLocals[i];
</span><span class="cx">     
</span></span></pre></div>
<a id="branchessafari6011467branchSourceJavaScriptCoreftlFTLOSREntrycpp"></a>
<div class="modfile"><h4>Modified: branches/safari-601.1.46.7-branch/Source/JavaScriptCore/ftl/FTLOSREntry.cpp (191909 => 191910)</h4>
<pre class="diff"><span>
<span class="info">--- branches/safari-601.1.46.7-branch/Source/JavaScriptCore/ftl/FTLOSREntry.cpp        2015-11-02 21:49:14 UTC (rev 191909)
+++ branches/safari-601.1.46.7-branch/Source/JavaScriptCore/ftl/FTLOSREntry.cpp        2015-11-02 22:00:31 UTC (rev 191910)
</span><span class="lines">@@ -38,7 +38,6 @@
</span><span class="cx"> 
</span><span class="cx"> namespace JSC { namespace FTL {
</span><span class="cx"> 
</span><del>-SUPPRESS_ASAN
</del><span class="cx"> void* prepareOSREntry(
</span><span class="cx">     ExecState* exec, CodeBlock* dfgCodeBlock, CodeBlock* entryCodeBlock,
</span><span class="cx">     unsigned bytecodeIndex, unsigned streamIndex)
</span><span class="lines">@@ -72,7 +71,7 @@
</span><span class="cx">         dataLog(&quot;    Values at entry: &quot;, values, &quot;\n&quot;);
</span><span class="cx">     
</span><span class="cx">     for (int argument = values.numberOfArguments(); argument--;) {
</span><del>-        JSValue valueOnStack = exec-&gt;r(virtualRegisterForArgument(argument).offset()).asanUnsafeJSValue();
</del><ins>+        JSValue valueOnStack = exec-&gt;r(virtualRegisterForArgument(argument).offset()).jsValue();
</ins><span class="cx">         JSValue reconstructedValue = values.argument(argument);
</span><span class="cx">         if (valueOnStack == reconstructedValue || !argument)
</span><span class="cx">             continue;
</span></span></pre></div>
<a id="branchessafari6011467branchSourceJavaScriptCoreheapConservativeRootscpp"></a>
<div class="modfile"><h4>Modified: branches/safari-601.1.46.7-branch/Source/JavaScriptCore/heap/ConservativeRoots.cpp (191909 => 191910)</h4>
<pre class="diff"><span>
<span class="info">--- branches/safari-601.1.46.7-branch/Source/JavaScriptCore/heap/ConservativeRoots.cpp        2015-11-02 21:49:14 UTC (rev 191909)
+++ branches/safari-601.1.46.7-branch/Source/JavaScriptCore/heap/ConservativeRoots.cpp        2015-11-02 22:00:31 UTC (rev 191910)
</span><span class="lines">@@ -92,7 +92,6 @@
</span><span class="cx"> }
</span><span class="cx"> 
</span><span class="cx"> template&lt;typename MarkHook&gt;
</span><del>-SUPPRESS_ASAN
</del><span class="cx"> void ConservativeRoots::genericAddSpan(void* begin, void* end, MarkHook&amp; markHook)
</span><span class="cx"> {
</span><span class="cx">     if (begin &gt; end) {
</span></span></pre></div>
<a id="branchessafari6011467branchSourceJavaScriptCoreheapMachineStackMarkercpp"></a>
<div class="modfile"><h4>Modified: branches/safari-601.1.46.7-branch/Source/JavaScriptCore/heap/MachineStackMarker.cpp (191909 => 191910)</h4>
<pre class="diff"><span>
<span class="info">--- branches/safari-601.1.46.7-branch/Source/JavaScriptCore/heap/MachineStackMarker.cpp        2015-11-02 21:49:14 UTC (rev 191909)
+++ branches/safari-601.1.46.7-branch/Source/JavaScriptCore/heap/MachineStackMarker.cpp        2015-11-02 22:00:31 UTC (rev 191910)
</span><span class="lines">@@ -335,8 +335,7 @@
</span><span class="cx">         delete t;
</span><span class="cx">     }
</span><span class="cx"> }
</span><del>-
-SUPPRESS_ASAN
</del><ins>+    
</ins><span class="cx"> void MachineThreads::gatherFromCurrentThread(ConservativeRoots&amp; conservativeRoots, JITStubRoutineSet&amp; jitStubRoutines, CodeBlockSet&amp; codeBlocks, void* stackOrigin, void* stackTop, RegisterState&amp; calleeSavedRegisters)
</span><span class="cx"> {
</span><span class="cx">     void* registersBegin = &amp;calleeSavedRegisters;
</span><span class="lines">@@ -520,7 +519,6 @@
</span><span class="cx">     return std::make_pair(begin, static_cast&lt;char*&gt;(end) - static_cast&lt;char*&gt;(begin));
</span><span class="cx"> }
</span><span class="cx"> 
</span><del>-SUPPRESS_ASAN
</del><span class="cx"> static void copyMemory(void* dst, const void* src, size_t size)
</span><span class="cx"> {
</span><span class="cx">     size_t dstAsSize = reinterpret_cast&lt;size_t&gt;(dst);
</span></span></pre></div>
<a id="branchessafari6011467branchSourceJavaScriptCoreinterpreterRegisterh"></a>
<div class="modfile"><h4>Modified: branches/safari-601.1.46.7-branch/Source/JavaScriptCore/interpreter/Register.h (191909 => 191910)</h4>
<pre class="diff"><span>
<span class="info">--- branches/safari-601.1.46.7-branch/Source/JavaScriptCore/interpreter/Register.h        2015-11-02 21:49:14 UTC (rev 191909)
+++ branches/safari-601.1.46.7-branch/Source/JavaScriptCore/interpreter/Register.h        2015-11-02 22:00:31 UTC (rev 191910)
</span><span class="lines">@@ -51,7 +51,6 @@
</span><span class="cx">         Register(const JSValue&amp;);
</span><span class="cx">         Register&amp; operator=(const JSValue&amp;);
</span><span class="cx">         JSValue jsValue() const;
</span><del>-        JSValue asanUnsafeJSValue() const;
</del><span class="cx">         EncodedJSValue encodedJSValue() const;
</span><span class="cx">         
</span><span class="cx">         Register&amp; operator=(CallFrame*);
</span><span class="lines">@@ -111,12 +110,6 @@
</span><span class="cx">         return *this;
</span><span class="cx">     }
</span><span class="cx"> 
</span><del>-    // FIXME (rdar://problem/19379214): ASan only needs to be suppressed for Register::jsValue() when called from prepareOSREntry(), but there is currently no way to express this short of adding a separate copy of the function.
-    SUPPRESS_ASAN ALWAYS_INLINE JSValue Register::asanUnsafeJSValue() const
-    {
-        return JSValue::decode(u.value);
-    }
-
</del><span class="cx">     ALWAYS_INLINE JSValue Register::jsValue() const
</span><span class="cx">     {
</span><span class="cx">         return JSValue::decode(u.value);
</span></span></pre></div>
<a id="branchessafari6011467branchSourceWTFwtfCompilerh"></a>
<div class="modfile"><h4>Modified: branches/safari-601.1.46.7-branch/Source/WTF/wtf/Compiler.h (191909 => 191910)</h4>
<pre class="diff"><span>
<span class="info">--- branches/safari-601.1.46.7-branch/Source/WTF/wtf/Compiler.h        2015-11-02 21:49:14 UTC (rev 191909)
+++ branches/safari-601.1.46.7-branch/Source/WTF/wtf/Compiler.h        2015-11-02 22:00:31 UTC (rev 191910)
</span><span class="lines">@@ -142,12 +142,6 @@
</span><span class="cx"> #define ASAN_ENABLED 0
</span><span class="cx"> #endif
</span><span class="cx"> 
</span><del>-#if ASAN_ENABLED
-#define SUPPRESS_ASAN __attribute__((no_sanitize_address))
-#else
-#define SUPPRESS_ASAN
-#endif
-
</del><span class="cx"> /* ==== Compiler-independent macros for various compiler features, in alphabetical order ==== */
</span><span class="cx"> 
</span><span class="cx"> /* ALWAYS_INLINE */
</span></span></pre></div>
<a id="branchessafari6011467branchToolsChangeLog"></a>
<div class="modfile"><h4>Modified: branches/safari-601.1.46.7-branch/Tools/ChangeLog (191909 => 191910)</h4>
<pre class="diff"><span>
<span class="info">--- branches/safari-601.1.46.7-branch/Tools/ChangeLog        2015-11-02 21:49:14 UTC (rev 191909)
+++ branches/safari-601.1.46.7-branch/Tools/ChangeLog        2015-11-02 22:00:31 UTC (rev 191910)
</span><span class="lines">@@ -1,3 +1,7 @@
</span><ins>+2015-11-02  Babak Shafiei  &lt;bshafiei@apple.com&gt;
+
+        Roll out r188311.
+
</ins><span class="cx"> 2015-09-16  Babak Shafiei  &lt;bshafiei@apple.com&gt;
</span><span class="cx"> 
</span><span class="cx">         Merge r188311.
</span></span></pre></div>
<a id="branchessafari6011467branchToolsasanasanxcconfig"></a>
<div class="modfile"><h4>Modified: branches/safari-601.1.46.7-branch/Tools/asan/asan.xcconfig (191909 => 191910)</h4>
<pre class="diff"><span>
<span class="info">--- branches/safari-601.1.46.7-branch/Tools/asan/asan.xcconfig        2015-11-02 21:49:14 UTC (rev 191909)
+++ branches/safari-601.1.46.7-branch/Tools/asan/asan.xcconfig        2015-11-02 22:00:31 UTC (rev 191910)
</span><span class="lines">@@ -12,7 +12,7 @@
</span><span class="cx"> 
</span><span class="cx"> CLANG_ADDRESS_SANITIZER=YES
</span><span class="cx"> 
</span><del>-ASAN_OTHER_CFLAGS = -fno-omit-frame-pointer -g;
</del><ins>+ASAN_OTHER_CFLAGS = -fsanitize-blacklist=$(ASAN_IGNORE) -fno-omit-frame-pointer -g;
</ins><span class="cx"> ASAN_OTHER_CPLUSPLUSFLAGS = $(ASAN_OTHER_CFLAGS);
</span><span class="cx"> 
</span><span class="cx"> GCC_ENABLE_OBJC_GC = NO;
</span></span></pre></div>
<a id="branchessafari6011467branchToolsasanwebkitasanignoretxtfromrev189899branchessafari6011467branchToolsasanwebkitasanignoretxt"></a>
<div class="copfile"><h4>Copied: branches/safari-601.1.46.7-branch/Tools/asan/webkit-asan-ignore.txt (from rev 189899, branches/safari-601.1.46.7-branch/Tools/asan/webkit-asan-ignore.txt) (0 => 191910)</h4>
<pre class="diff"><span>
<span class="info">--- branches/safari-601.1.46.7-branch/Tools/asan/webkit-asan-ignore.txt                                (rev 0)
+++ branches/safari-601.1.46.7-branch/Tools/asan/webkit-asan-ignore.txt        2015-11-02 22:00:31 UTC (rev 191910)
</span><span class="lines">@@ -0,0 +1,7 @@
</span><ins>+fun:*genericAddSpan*
+fun:*gatherFromCurrentThread*ConservativeRoots*
+fun:*DFG*prepareOSREntry*
+# FIXME (rdar://problem/19379214): Register::jsValue() only needs to be blacklisted when
+# called from prepareOSREntry(), but there is currently no way to express this in a blacklist.
+fun:*JSC*Register*jsValue*
+fun:*asanUnsafeMemcpy*
</ins></span></pre>
</div>
</div>

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