JavaScriptCore-1097.3.tar.gz

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

diff --git a/llint/LLIntThunks.cpp b/llint/LLIntThunks.cpp
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+/*
+ * Copyright (C) 2012 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 "LLIntThunks.h"
+
+#if ENABLE(LLINT)
+
+#include "JSInterfaceJIT.h"
+#include "JSObject.h"
+#include "LinkBuffer.h"
+#include "LowLevelInterpreter.h"
+#include "ScopeChain.h"
+
+namespace JSC { namespace LLInt {
+
+static MacroAssemblerCodeRef generateThunkWithJumpTo(JSGlobalData* globalData, void (*target)())
+{
+    JSInterfaceJIT jit;
+    
+    // FIXME: there's probably a better way to do it on X86, but I'm not sure I care.
+    jit.move(JSInterfaceJIT::TrustedImmPtr(bitwise_cast<void*>(target)), JSInterfaceJIT::regT0);
+    jit.jump(JSInterfaceJIT::regT0);
+    
+    LinkBuffer patchBuffer(*globalData, &jit, GLOBAL_THUNK_ID);
+    return patchBuffer.finalizeCode();
+}
+
+MacroAssemblerCodeRef functionForCallEntryThunkGenerator(JSGlobalData* globalData)
+{
+    return generateThunkWithJumpTo(globalData, llint_function_for_call_prologue);
+}
+
+MacroAssemblerCodeRef functionForConstructEntryThunkGenerator(JSGlobalData* globalData)
+{
+    return generateThunkWithJumpTo(globalData, llint_function_for_construct_prologue);
+}
+
+MacroAssemblerCodeRef functionForCallArityCheckThunkGenerator(JSGlobalData* globalData)
+{
+    return generateThunkWithJumpTo(globalData, llint_function_for_call_arity_check);
+}
+
+MacroAssemblerCodeRef functionForConstructArityCheckThunkGenerator(JSGlobalData* globalData)
+{
+    return generateThunkWithJumpTo(globalData, llint_function_for_construct_arity_check);
+}
+
+MacroAssemblerCodeRef evalEntryThunkGenerator(JSGlobalData* globalData)
+{
+    return generateThunkWithJumpTo(globalData, llint_eval_prologue);
+}
+
+MacroAssemblerCodeRef programEntryThunkGenerator(JSGlobalData* globalData)
+{
+    return generateThunkWithJumpTo(globalData, llint_program_prologue);
+}
+
+} } // namespace JSC::LLInt
+
+#endif // ENABLE(LLINT)