projects / apple / javascriptcore.git / blame
| Commit | Line | Data |
|---|---|---|
| 81345200 A |
1 | /* |
| 2 | * Copyright (C) 2013 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 | #ifndef SlowPathCall_h | |
| 27 | #define SlowPathCall_h | |
| 28 | ||
| 29 | #include "CommonSlowPaths.h" | |
| 30 | #include "MacroAssemblerCodeRef.h" | |
| 31 | ||
| 32 | #if ENABLE(JIT) | |
| 33 | ||
| 34 | namespace JSC { | |
| 35 | ||
| 36 | class JITSlowPathCall { | |
| 37 | public: | |
| 38 | JITSlowPathCall(JIT* jit, Instruction* pc, SlowPathReturnType (SLOW_PATH *stub)(ExecState* exec, Instruction* pc)) | |
| 39 | : m_jit(jit) | |
| 40 | , m_stub(stub) | |
| 41 | , m_pc(pc) | |
| 42 | { | |
| 43 | } | |
| 44 | ||
| 45 | JIT::Call call() | |
| 46 | { | |
| 47 | #if ENABLE(OPCODE_SAMPLING) | |
| 48 | if (m_jit->m_bytecodeOffset != (unsigned)-1) | |
| 49 | m_jit->sampleInstruction(m_jit->m_codeBlock->instructions().begin() + m_jit->m_bytecodeOffset, true); | |
| 50 | #endif | |
| 51 | m_jit->updateTopCallFrame(); | |
| 52 | #if CPU(X86) && USE(JSVALUE32_64) | |
| 53 | m_jit->addPtr(MacroAssembler::TrustedImm32(-8), MacroAssembler::stackPointerRegister); | |
| 54 | m_jit->push(JIT::TrustedImm32(JIT::TrustedImmPtr(m_pc))); | |
| 55 | m_jit->push(JIT::callFrameRegister); | |
| 56 | #elif CPU(X86_64) && OS(WINDOWS) | |
| 57 | m_jit->addPtr(MacroAssembler::TrustedImm32(-16), MacroAssembler::stackPointerRegister); | |
| 58 | m_jit->move(MacroAssembler::stackPointerRegister, JIT::argumentGPR0); | |
| 59 | m_jit->move(JIT::callFrameRegister, JIT::argumentGPR1); | |
| 60 | m_jit->move(JIT::TrustedImmPtr(m_pc), JIT::argumentGPR2); | |
| 61 | #else | |
| 62 | m_jit->move(JIT::callFrameRegister, JIT::argumentGPR0); | |
| 63 | m_jit->move(JIT::TrustedImmPtr(m_pc), JIT::argumentGPR1); | |
| 64 | #endif | |
| 65 | JIT::Call call = m_jit->call(); | |
| 66 | m_jit->m_calls.append(CallRecord(call, m_jit->m_bytecodeOffset, m_stub.value())); | |
| 67 | ||
| 68 | #if CPU(X86) && USE(JSVALUE32_64) | |
| 69 | m_jit->addPtr(MacroAssembler::TrustedImm32(16), MacroAssembler::stackPointerRegister); | |
| 70 | #elif CPU(X86_64) && OS(WINDOWS) | |
| 71 | m_jit->pop(JIT::regT0); // vPC | |
| 72 | m_jit->pop(JIT::regT1); // callFrame register | |
| 73 | #endif | |
| 74 | ||
| 75 | #if ENABLE(OPCODE_SAMPLING) | |
| 76 | if (m_jit->m_bytecodeOffset != (unsigned)-1) | |
| 77 | m_jit->sampleInstruction(m_jit->m_codeBlock->instructions().begin() + m_jit->m_bytecodeOffset, false); | |
| 78 | #endif | |
| 79 | ||
| 80 | m_jit->exceptionCheck(); | |
| 81 | return call; | |
| 82 | } | |
| 83 | ||
| 84 | private: | |
| 85 | JIT* m_jit; | |
| 86 | FunctionPtr m_stub; | |
| 87 | Instruction* m_pc; | |
| 88 | }; | |
| 89 | ||
| 90 | } // namespace JS | |
| 91 | ||
| 92 | #endif // ENABLE(JIT) | |
| 93 | ||
| 94 | #endif // SlowPathCall_h |