AssemblyHelpers should not have a VM field
[WebKit.git] / Source / JavaScriptCore / jit / CCallHelpers.cpp
1 /*
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24  */
25
26 #include "config.h"
27 #include "CCallHelpers.h"
28
29 #if ENABLE(JIT)
30
31 #include "ShadowChicken.h"
32
33 namespace JSC {
34
35 void CCallHelpers::logShadowChickenProloguePacket(GPRReg shadowPacket, GPRReg scratch1, GPRReg scope)
36 {
37     storePtr(GPRInfo::callFrameRegister, Address(shadowPacket, OBJECT_OFFSETOF(ShadowChicken::Packet, frame)));
38     loadPtr(Address(GPRInfo::callFrameRegister, OBJECT_OFFSETOF(CallerFrameAndPC, callerFrame)), scratch1);
39     storePtr(scratch1, Address(shadowPacket, OBJECT_OFFSETOF(ShadowChicken::Packet, callerFrame)));
40     loadPtr(addressFor(CallFrameSlot::callee), scratch1);
41     storePtr(scratch1, Address(shadowPacket, OBJECT_OFFSETOF(ShadowChicken::Packet, callee)));
42     storePtr(scope, Address(shadowPacket, OBJECT_OFFSETOF(ShadowChicken::Packet, scope)));
43 }
44
45 void CCallHelpers::logShadowChickenTailPacket(GPRReg shadowPacket, JSValueRegs thisRegs, GPRReg scope, CodeBlock* codeBlock, CallSiteIndex callSiteIndex)
46 {
47     storePtr(GPRInfo::callFrameRegister, Address(shadowPacket, OBJECT_OFFSETOF(ShadowChicken::Packet, frame)));
48     storePtr(TrustedImmPtr(ShadowChicken::Packet::tailMarker()), Address(shadowPacket, OBJECT_OFFSETOF(ShadowChicken::Packet, callee)));
49     storeValue(thisRegs, Address(shadowPacket, OBJECT_OFFSETOF(ShadowChicken::Packet, thisValue)));
50     storePtr(scope, Address(shadowPacket, OBJECT_OFFSETOF(ShadowChicken::Packet, scope)));
51     storePtr(TrustedImmPtr(codeBlock), Address(shadowPacket, OBJECT_OFFSETOF(ShadowChicken::Packet, codeBlock)));
52     store32(TrustedImm32(callSiteIndex.bits()), Address(shadowPacket, OBJECT_OFFSETOF(ShadowChicken::Packet, callSiteIndex)));
53 }
54
55 void CCallHelpers::ensureShadowChickenPacket(VM& vm, GPRReg shadowPacket, GPRReg scratch1NonArgGPR, GPRReg scratch2)
56 {
57     ASSERT(!RegisterSet::argumentGPRS().get(scratch1NonArgGPR));
58     move(TrustedImmPtr(vm.shadowChicken().addressOfLogCursor()), scratch1NonArgGPR);
59     loadPtr(Address(scratch1NonArgGPR), shadowPacket);
60     Jump ok = branchPtr(Below, shadowPacket, TrustedImmPtr(vm.shadowChicken().logEnd()));
61     setupArgumentsExecState();
62     move(TrustedImmPtr(bitwise_cast<void*>(operationProcessShadowChickenLog)), scratch1NonArgGPR);
63     call(scratch1NonArgGPR);
64     move(TrustedImmPtr(vm.shadowChicken().addressOfLogCursor()), scratch1NonArgGPR);
65     loadPtr(Address(scratch1NonArgGPR), shadowPacket);
66     ok.link(this);
67     addPtr(TrustedImm32(sizeof(ShadowChicken::Packet)), shadowPacket, scratch2);
68     storePtr(scratch2, Address(scratch1NonArgGPR));
69 }
70
71 } // namespace JSC
72
73 #endif // ENABLE(JIT)