JavaScriptCore-1097.3.tar.gz

[apple/javascriptcore.git] / llint / LLIntExceptions.cpp

diff --git a/llint/LLIntExceptions.cpp b/llint/LLIntExceptions.cpp
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+/*
+ * Copyright (C) 2011 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 "LLIntExceptions.h"
+
+#if ENABLE(LLINT)
+
+#include "CallFrame.h"
+#include "CodeBlock.h"
+#include "Instruction.h"
+#include "JITExceptions.h"
+#include "LLIntCommon.h"
+#include "LowLevelInterpreter.h"
+
+namespace JSC { namespace LLInt {
+
+void interpreterThrowInCaller(ExecState* exec, ReturnAddressPtr pc)
+{
+    JSGlobalData* globalData = &exec->globalData();
+    NativeCallFrameTracer tracer(globalData, exec);
+#if LLINT_SLOW_PATH_TRACING
+    dataLog("Throwing exception %s.\n", globalData->exception.description());
+#endif
+    genericThrow(
+        globalData, exec, globalData->exception,
+        exec->codeBlock()->bytecodeOffset(exec, pc));
+}
+
+Instruction* returnToThrowForThrownException(ExecState* exec)
+{
+    return exec->globalData().llintData.exceptionInstructions();
+}
+
+Instruction* returnToThrow(ExecState* exec, Instruction* pc)
+{
+    JSGlobalData* globalData = &exec->globalData();
+    NativeCallFrameTracer tracer(globalData, exec);
+#if LLINT_SLOW_PATH_TRACING
+    dataLog("Throwing exception %s (returnToThrow).\n", globalData->exception.description());
+#endif
+    genericThrow(globalData, exec, globalData->exception, pc - exec->codeBlock()->instructions().begin());
+    
+    return globalData->llintData.exceptionInstructions();
+}
+
+void* callToThrow(ExecState* exec, Instruction* pc)
+{
+    JSGlobalData* globalData = &exec->globalData();
+    NativeCallFrameTracer tracer(globalData, exec);
+#if LLINT_SLOW_PATH_TRACING
+    dataLog("Throwing exception %s (callToThrow).\n", globalData->exception.description());
+#endif
+    genericThrow(globalData, exec, globalData->exception, pc - exec->codeBlock()->instructions().begin());
+    
+    return bitwise_cast<void*>(&llint_throw_during_call_trampoline);
+}
+
+} } // namespace JSC::LLInt
+
+#endif // ENABLE(LLINT)