blob: de063b965e55dfde94081f8ad9e6ca6879dc96e6 [file] [log] [blame]
/*
* Copyright (C) 2016-2018 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 "CCallHelpers.h"
#if ENABLE(JIT)
#include "ShadowChicken.h"
namespace JSC {
void CCallHelpers::logShadowChickenProloguePacket(GPRReg shadowPacket, GPRReg scratch1, GPRReg scope)
{
storePtr(GPRInfo::callFrameRegister, Address(shadowPacket, OBJECT_OFFSETOF(ShadowChicken::Packet, frame)));
loadPtr(Address(GPRInfo::callFrameRegister, OBJECT_OFFSETOF(CallerFrameAndPC, callerFrame)), scratch1);
storePtr(scratch1, Address(shadowPacket, OBJECT_OFFSETOF(ShadowChicken::Packet, callerFrame)));
loadPtr(addressFor(CallFrameSlot::callee), scratch1);
storePtr(scratch1, Address(shadowPacket, OBJECT_OFFSETOF(ShadowChicken::Packet, callee)));
storePtr(scope, Address(shadowPacket, OBJECT_OFFSETOF(ShadowChicken::Packet, scope)));
}
void CCallHelpers::logShadowChickenTailPacket(GPRReg shadowPacket, JSValueRegs thisRegs, GPRReg scope, CodeBlock* codeBlock, CallSiteIndex callSiteIndex)
{
storePtr(GPRInfo::callFrameRegister, Address(shadowPacket, OBJECT_OFFSETOF(ShadowChicken::Packet, frame)));
storePtr(TrustedImmPtr(ShadowChicken::Packet::tailMarker()), Address(shadowPacket, OBJECT_OFFSETOF(ShadowChicken::Packet, callee)));
storeValue(thisRegs, Address(shadowPacket, OBJECT_OFFSETOF(ShadowChicken::Packet, thisValue)));
storePtr(scope, Address(shadowPacket, OBJECT_OFFSETOF(ShadowChicken::Packet, scope)));
storePtr(TrustedImmPtr(codeBlock), Address(shadowPacket, OBJECT_OFFSETOF(ShadowChicken::Packet, codeBlock)));
store32(TrustedImm32(callSiteIndex.bits()), Address(shadowPacket, OBJECT_OFFSETOF(ShadowChicken::Packet, callSiteIndex)));
}
void CCallHelpers::ensureShadowChickenPacket(VM& vm, GPRReg shadowPacket, GPRReg scratch1NonArgGPR, GPRReg scratch2)
{
ShadowChicken* shadowChicken = vm.shadowChicken();
RELEASE_ASSERT(shadowChicken);
ASSERT(!RegisterSet::argumentGPRS().get(scratch1NonArgGPR));
move(TrustedImmPtr(shadowChicken->addressOfLogCursor()), scratch1NonArgGPR);
loadPtr(Address(scratch1NonArgGPR), shadowPacket);
Jump ok = branchPtr(Below, shadowPacket, TrustedImmPtr(shadowChicken->logEnd()));
setupArguments<decltype(operationProcessShadowChickenLog)>();
move(TrustedImmPtr(tagCFunctionPtr<OperationPtrTag>(operationProcessShadowChickenLog)), scratch1NonArgGPR);
call(scratch1NonArgGPR, OperationPtrTag);
move(TrustedImmPtr(shadowChicken->addressOfLogCursor()), scratch1NonArgGPR);
loadPtr(Address(scratch1NonArgGPR), shadowPacket);
ok.link(this);
addPtr(TrustedImm32(sizeof(ShadowChicken::Packet)), shadowPacket, scratch2);
storePtr(scratch2, Address(scratch1NonArgGPR));
}
} // namespace JSC
#endif // ENABLE(JIT)