X-Git-Url: https://git.saurik.com/apple/javascriptcore.git/blobdiff_plain/1df5f87f1309a8daa30dabdee855f48ae40d14ab..6fe7ccc865dc7d7541b93c5bcaf6368d2c98a174:/llint/LLIntThunks.cpp?ds=sidebyside diff --git a/llint/LLIntThunks.cpp b/llint/LLIntThunks.cpp new file mode 100644 index 0000000..b4d0264 --- /dev/null +++ b/llint/LLIntThunks.cpp @@ -0,0 +1,83 @@ +/* + * 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(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)