mirror of
https://github.com/darlinghq/darling-JavaScriptCore.git
synced 2025-04-09 02:10:43 +00:00
77 lines
4.0 KiB
C++
77 lines
4.0 KiB
C++
/*
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* Copyright (C) 2016-2020 Apple Inc. All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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*
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* THIS SOFTWARE IS PROVIDED BY APPLE INC. ``AS IS'' AND ANY
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* EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
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* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL APPLE INC. OR
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* CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
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* EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
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* PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
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* PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY
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* OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
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* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*/
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#include "config.h"
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#include "CCallHelpers.h"
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#if ENABLE(JIT)
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#include "ShadowChicken.h"
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namespace JSC {
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void CCallHelpers::logShadowChickenProloguePacket(GPRReg shadowPacket, GPRReg scratch1, GPRReg scope)
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{
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storePtr(GPRInfo::callFrameRegister, Address(shadowPacket, OBJECT_OFFSETOF(ShadowChicken::Packet, frame)));
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loadPtr(Address(GPRInfo::callFrameRegister, OBJECT_OFFSETOF(CallerFrameAndPC, callerFrame)), scratch1);
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storePtr(scratch1, Address(shadowPacket, OBJECT_OFFSETOF(ShadowChicken::Packet, callerFrame)));
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loadPtr(addressFor(CallFrameSlot::callee), scratch1);
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storePtr(scratch1, Address(shadowPacket, OBJECT_OFFSETOF(ShadowChicken::Packet, callee)));
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storePtr(scope, Address(shadowPacket, OBJECT_OFFSETOF(ShadowChicken::Packet, scope)));
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}
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void CCallHelpers::logShadowChickenTailPacket(GPRReg shadowPacket, JSValueRegs thisRegs, GPRReg scope, CodeBlock* codeBlock, CallSiteIndex callSiteIndex)
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{
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storePtr(GPRInfo::callFrameRegister, Address(shadowPacket, OBJECT_OFFSETOF(ShadowChicken::Packet, frame)));
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storePtr(TrustedImmPtr(ShadowChicken::Packet::tailMarker()), Address(shadowPacket, OBJECT_OFFSETOF(ShadowChicken::Packet, callee)));
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storeValue(thisRegs, Address(shadowPacket, OBJECT_OFFSETOF(ShadowChicken::Packet, thisValue)));
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storePtr(scope, Address(shadowPacket, OBJECT_OFFSETOF(ShadowChicken::Packet, scope)));
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storePtr(TrustedImmPtr(codeBlock), Address(shadowPacket, OBJECT_OFFSETOF(ShadowChicken::Packet, codeBlock)));
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store32(TrustedImm32(callSiteIndex.bits()), Address(shadowPacket, OBJECT_OFFSETOF(ShadowChicken::Packet, callSiteIndex)));
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}
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void CCallHelpers::ensureShadowChickenPacket(VM& vm, GPRReg shadowPacket, GPRReg scratch1NonArgGPR, GPRReg scratch2)
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{
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ShadowChicken* shadowChicken = vm.shadowChicken();
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RELEASE_ASSERT(shadowChicken);
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ASSERT(!RegisterSet::argumentGPRS().get(scratch1NonArgGPR));
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move(TrustedImmPtr(shadowChicken->addressOfLogCursor()), scratch1NonArgGPR);
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loadPtr(Address(scratch1NonArgGPR), shadowPacket);
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Jump ok = branchPtr(Below, shadowPacket, TrustedImmPtr(shadowChicken->logEnd()));
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setupArguments<decltype(operationProcessShadowChickenLog)>(TrustedImmPtr(&vm));
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prepareCallOperation(vm);
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move(TrustedImmPtr(tagCFunction<OperationPtrTag>(operationProcessShadowChickenLog)), scratch1NonArgGPR);
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call(scratch1NonArgGPR, OperationPtrTag);
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move(TrustedImmPtr(shadowChicken->addressOfLogCursor()), scratch1NonArgGPR);
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loadPtr(Address(scratch1NonArgGPR), shadowPacket);
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ok.link(this);
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addPtr(TrustedImm32(sizeof(ShadowChicken::Packet)), shadowPacket, scratch2);
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storePtr(scratch2, Address(scratch1NonArgGPR));
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}
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} // namespace JSC
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#endif // ENABLE(JIT)
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