JavaScriptCore-1218.tar.gz

[apple/javascriptcore.git] / bytecode / CodeOrigin.cpp

diff --git a/bytecode/CodeOrigin.cpp b/bytecode/CodeOrigin.cpp
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+++ b/bytecode/CodeOrigin.cpp
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+/*
+ * Copyright (C) 2012, 2013 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 "config.h"
+#include "CodeOrigin.h"
+
+#include "CallFrame.h"
+#include "CodeBlock.h"
+#include "Executable.h"
+#include "Operations.h"
+
+namespace JSC {
+
+unsigned CodeOrigin::inlineDepthForCallFrame(InlineCallFrame* inlineCallFrame)
+{
+    unsigned result = 1;
+    for (InlineCallFrame* current = inlineCallFrame; current; current = current->caller.inlineCallFrame)
+        result++;
+    return result;
+}
+
+unsigned CodeOrigin::inlineDepth() const
+{
+    return inlineDepthForCallFrame(inlineCallFrame);
+}
+    
+Vector<CodeOrigin> CodeOrigin::inlineStack() const
+{
+    Vector<CodeOrigin> result(inlineDepth());
+    result.last() = *this;
+    unsigned index = result.size() - 2;
+    for (InlineCallFrame* current = inlineCallFrame; current; current = current->caller.inlineCallFrame)
+        result[index--] = current->caller;
+    RELEASE_ASSERT(!result[0].inlineCallFrame);
+    return result;
+}
+
+void CodeOrigin::dump(PrintStream& out) const
+{
+    Vector<CodeOrigin> stack = inlineStack();
+    for (unsigned i = 0; i < stack.size(); ++i) {
+        if (i)
+            out.print(" --> ");
+        
+        if (InlineCallFrame* frame = stack[i].inlineCallFrame) {
+            out.print(frame->briefFunctionInformation(), ":<", RawPointer(frame->executable.get()), "> ");
+            if (frame->isClosureCall())
+                out.print("(closure) ");
+        }
+        
+        out.print("bc#", stack[i].bytecodeIndex);
+    }
+}
+
+JSFunction* InlineCallFrame::calleeForCallFrame(ExecState* exec) const
+{
+    if (!isClosureCall())
+        return callee.get();
+    
+    return jsCast<JSFunction*>((exec + stackOffset)->callee());
+}
+
+CodeBlockHash InlineCallFrame::hash() const
+{
+    return executable->hashFor(specializationKind());
+}
+
+String InlineCallFrame::inferredName() const
+{
+    return jsCast<FunctionExecutable*>(executable.get())->inferredName().string();
+}
+
+CodeBlock* InlineCallFrame::baselineCodeBlock() const
+{
+    return jsCast<FunctionExecutable*>(executable.get())->baselineCodeBlockFor(specializationKind());
+}
+
+void InlineCallFrame::dumpBriefFunctionInformation(PrintStream& out) const
+{
+    out.print(inferredName(), "#", hash());
+}
+
+void InlineCallFrame::dump(PrintStream& out) const
+{
+    out.print(briefFunctionInformation(), ":<", RawPointer(executable.get()), ", bc#", caller.bytecodeIndex, ", ", specializationKind());
+    if (callee)
+        out.print(", known callee: ", JSValue(callee.get()));
+    else
+        out.print(", closure call");
+    out.print(", numArgs+this = ", arguments.size());
+    out.print(", stack >= r", stackOffset);
+    out.print(">");
+}
+
+} // namespace JSC
+