Imported WebKit commit bb52bf3c0119e8a128cd93afe5572413a8617de9 (http://svn.webkit.org/repository/webkit/trunk@108790)

1 files changed, 35 insertions, 12 deletions

diff --git a/Source/JavaScriptCore/interpreter/CallFrame.cpp b/Source/JavaScriptCore/interpreter/CallFrame.cpp
index 3ef5bd26f..b0e5ea0f6 100644
--- a/Source/JavaScriptCore/interpreter/CallFrame.cpp
+++ b/Source/JavaScriptCore/interpreter/CallFrame.cpp
@@ -40,7 +40,7 @@ void CallFrame::dumpCaller()
     JSValue function;
     
     interpreter()->retrieveLastCaller(this, signedLineNumber, sourceID, urlString, function);
-    printf("Callpoint => %s:%d\n", urlString.utf8().data(), signedLineNumber);
+    dataLog("Callpoint => %s:%d\n", urlString.utf8().data(), signedLineNumber);
 }
 
 RegisterFile* CallFrame::registerFile()
@@ -50,6 +50,29 @@ RegisterFile* CallFrame::registerFile()
 
 #endif
 
+#if USE(JSVALUE32_64)
+unsigned CallFrame::bytecodeOffsetForNonDFGCode() const
+{
+    ASSERT(codeBlock());
+    return currentVPC() - codeBlock()->instructions().begin();
+}
+
+void CallFrame::setBytecodeOffsetForNonDFGCode(unsigned offset)
+{
+    ASSERT(codeBlock());
+    setCurrentVPC(codeBlock()->instructions().begin() + offset);
+}
+#else
+Instruction* CallFrame::currentVPC() const
+{
+    return codeBlock()->instructions().begin() + bytecodeOffsetForNonDFGCode();
+}
+void CallFrame::setCurrentVPC(Instruction* vpc)
+{
+    setBytecodeOffsetForNonDFGCode(vpc - codeBlock()->instructions().begin());
+}
+#endif
+    
 #if ENABLE(DFG_JIT)
 bool CallFrame::isInlineCallFrameSlow()
 {
@@ -96,15 +119,15 @@ CallFrame* CallFrame::trueCallFrame(AbstractPC pc)
     if (pc.isSet()) {
         ReturnAddressPtr currentReturnPC = pc.jitReturnAddress();
         
-        if (!machineCodeBlock->codeOriginForReturn(currentReturnPC, codeOrigin))
-            return this; // Not currently in inlined code.
+        bool hasCodeOrigin = machineCodeBlock->codeOriginForReturn(currentReturnPC, codeOrigin);
+        ASSERT_UNUSED(hasCodeOrigin, hasCodeOrigin);
     } else {
-        unsigned index = codeOriginIndexForDFGWithInlining();
-        if (index == UINT_MAX)
-            return this; // Not currently in inlined code.
-        
+        unsigned index = codeOriginIndexForDFG();
         codeOrigin = machineCodeBlock->codeOrigin(index);
     }
+
+    if (!codeOrigin.inlineCallFrame)
+        return this; // Not currently in inlined code.
     
     for (InlineCallFrame* inlineCallFrame = codeOrigin.inlineCallFrame; inlineCallFrame;) {
         InlineCallFrame* nextInlineCallFrame = inlineCallFrame->caller.inlineCallFrame;
@@ -140,10 +163,10 @@ CallFrame* CallFrame::trueCallerFrame()
     //
     // machineCaller -> The caller according to the machine, which may be zero or
     //    more frames above the true caller due to inlining.
-    
+
     // Am I an inline call frame? If so, we're done.
     if (isInlineCallFrame())
-        return callerFrame();
+        return callerFrame()->removeHostCallFrameFlag();
     
     // I am a machine call frame, so the question is: is my caller a machine call frame
     // that has inlines or a machine call frame that doesn't?
@@ -153,10 +176,10 @@ CallFrame* CallFrame::trueCallerFrame()
     ASSERT(!machineCaller->isInlineCallFrame());
     
     // Figure out how we want to get the current code location.
-    if (hasHostCallFrameFlag() || returnAddressIsInCtiTrampoline(returnPC()))
-        return machineCaller->trueCallFrameFromVMCode();
+    if (!hasReturnPC() || returnAddressIsInCtiTrampoline(returnPC()))
+        return machineCaller->trueCallFrameFromVMCode()->removeHostCallFrameFlag();
     
-    return machineCaller->trueCallFrame(returnPC());
+    return machineCaller->trueCallFrame(returnPC())->removeHostCallFrameFlag();
 }
 #endif