2 * Copyright (C) 2012 Apple Inc. All rights reserved.
4 * Redistribution and use in source and binary forms, with or without
5 * modification, are permitted provided that the following conditions
7 * 1. Redistributions of source code must retain the above copyright
8 * notice, this list of conditions and the following disclaimer.
9 * 2. Redistributions in binary form must reproduce the above copyright
10 * notice, this list of conditions and the following disclaimer in the
11 * documentation and/or other materials provided with the distribution.
13 * THIS SOFTWARE IS PROVIDED BY APPLE INC. ``AS IS'' AND ANY
14 * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
15 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
16 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL APPLE INC. OR
17 * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
18 * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
19 * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
20 * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY
21 * OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
22 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
23 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
27 #include "LLIntThunks.h"
31 #include "JSInterfaceJIT.h"
33 #include "LinkBuffer.h"
34 #include "LowLevelInterpreter.h"
35 #include "ScopeChain.h"
37 namespace JSC { namespace LLInt {
39 #if !ENABLE(LLINT_C_LOOP)
41 static MacroAssemblerCodeRef generateThunkWithJumpTo(JSGlobalData* globalData, void (*target)(), const char *thunkKind)
45 // FIXME: there's probably a better way to do it on X86, but I'm not sure I care.
46 jit.move(JSInterfaceJIT::TrustedImmPtr(bitwise_cast<void*>(target)), JSInterfaceJIT::regT0);
47 jit.jump(JSInterfaceJIT::regT0);
49 LinkBuffer patchBuffer(*globalData, &jit, GLOBAL_THUNK_ID);
50 return FINALIZE_CODE(patchBuffer, ("LLInt %s prologue thunk", thunkKind));
53 MacroAssemblerCodeRef functionForCallEntryThunkGenerator(JSGlobalData* globalData)
55 return generateThunkWithJumpTo(globalData, llint_function_for_call_prologue, "function for call");
58 MacroAssemblerCodeRef functionForConstructEntryThunkGenerator(JSGlobalData* globalData)
60 return generateThunkWithJumpTo(globalData, llint_function_for_construct_prologue, "function for construct");
63 MacroAssemblerCodeRef functionForCallArityCheckThunkGenerator(JSGlobalData* globalData)
65 return generateThunkWithJumpTo(globalData, llint_function_for_call_arity_check, "function for call with arity check");
68 MacroAssemblerCodeRef functionForConstructArityCheckThunkGenerator(JSGlobalData* globalData)
70 return generateThunkWithJumpTo(globalData, llint_function_for_construct_arity_check, "function for construct with arity check");
73 MacroAssemblerCodeRef evalEntryThunkGenerator(JSGlobalData* globalData)
75 return generateThunkWithJumpTo(globalData, llint_eval_prologue, "eval");
78 MacroAssemblerCodeRef programEntryThunkGenerator(JSGlobalData* globalData)
80 return generateThunkWithJumpTo(globalData, llint_program_prologue, "program");
83 #endif // !ENABLE(LLINT_C_LOOP)
85 } } // namespace JSC::LLInt
87 #endif // ENABLE(LLINT)