| | 1 | /* |
| | 2 | * Copyright (C) 2012 Apple Inc. All rights reserved. |
| | 3 | * |
| | 4 | * Redistribution and use in source and binary forms, with or without |
| | 5 | * modification, are permitted provided that the following conditions |
| | 6 | * are met: |
| | 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. |
| | 12 | * |
| | 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. |
| | 24 | */ |
| | 25 | |
| | 26 | #include "config.h" |
| | 27 | #include "LLIntThunks.h" |
| | 28 | |
| | 29 | #if ENABLE(LLINT) |
| | 30 | |
| | 31 | #include "JSInterfaceJIT.h" |
| | 32 | #include "JSObject.h" |
| | 33 | #include "LinkBuffer.h" |
| | 34 | #include "LowLevelInterpreter.h" |
| | 35 | #include "ScopeChain.h" |
| | 36 | |
| | 37 | namespace JSC { namespace LLInt { |
| | 38 | |
| | 39 | static MacroAssemblerCodeRef generateThunkWithJumpTo(JSGlobalData* globalData, void (*target)()) |
| | 40 | { |
| | 41 | JSInterfaceJIT jit; |
| | 42 | |
| | 43 | // FIXME: there's probably a better way to do it on X86, but I'm not sure I care. |
| | 44 | jit.move(JSInterfaceJIT::TrustedImmPtr(bitwise_cast<void*>(target)), JSInterfaceJIT::regT0); |
| | 45 | jit.jump(JSInterfaceJIT::regT0); |
| | 46 | |
| | 47 | LinkBuffer patchBuffer(*globalData, &jit, GLOBAL_THUNK_ID); |
| | 48 | return patchBuffer.finalizeCode(); |
| | 49 | } |
| | 50 | |
| | 51 | MacroAssemblerCodeRef functionForCallEntryThunkGenerator(JSGlobalData* globalData) |
| | 52 | { |
| | 53 | return generateThunkWithJumpTo(globalData, llint_function_for_call_prologue); |
| | 54 | } |
| | 55 | |
| | 56 | MacroAssemblerCodeRef functionForConstructEntryThunkGenerator(JSGlobalData* globalData) |
| | 57 | { |
| | 58 | return generateThunkWithJumpTo(globalData, llint_function_for_construct_prologue); |
| | 59 | } |
| | 60 | |
| | 61 | MacroAssemblerCodeRef functionForCallArityCheckThunkGenerator(JSGlobalData* globalData) |
| | 62 | { |
| | 63 | return generateThunkWithJumpTo(globalData, llint_function_for_call_arity_check); |
| | 64 | } |
| | 65 | |
| | 66 | MacroAssemblerCodeRef functionForConstructArityCheckThunkGenerator(JSGlobalData* globalData) |
| | 67 | { |
| | 68 | return generateThunkWithJumpTo(globalData, llint_function_for_construct_arity_check); |
| | 69 | } |
| | 70 | |
| | 71 | MacroAssemblerCodeRef evalEntryThunkGenerator(JSGlobalData* globalData) |
| | 72 | { |
| | 73 | return generateThunkWithJumpTo(globalData, llint_eval_prologue); |
| | 74 | } |
| | 75 | |
| | 76 | MacroAssemblerCodeRef programEntryThunkGenerator(JSGlobalData* globalData) |
| | 77 | { |
| | 78 | return generateThunkWithJumpTo(globalData, llint_program_prologue); |
| | 79 | } |
| | 80 | |
| | 81 | } } // namespace JSC::LLInt |
| | 82 | |
| | 83 | #endif // ENABLE(LLINT) |
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