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// Copyright 2012 the V8 project authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#ifndef V8_X64_FRAME_CONSTANTS_X64_H_
#define V8_X64_FRAME_CONSTANTS_X64_H_
namespace v8 {
namespace internal {
class EntryFrameConstants : public AllStatic {
public:
#ifdef _WIN64
static const int kCalleeSaveXMMRegisters = 10;
static const int kXMMRegisterSize = 16;
static const int kXMMRegistersBlockSize =
kXMMRegisterSize * kCalleeSaveXMMRegisters;
static const int kCallerFPOffset =
-3 * kPointerSize + -7 * kRegisterSize - kXMMRegistersBlockSize;
#else
// We have 3 Push and 5 pushq in the JSEntryStub::GenerateBody.
static const int kCallerFPOffset = -3 * kPointerSize + -5 * kRegisterSize;
#endif
static const int kArgvOffset = 6 * kPointerSize;
};
class ExitFrameConstants : public TypedFrameConstants {
public:
static const int kSPOffset = TYPED_FRAME_PUSHED_VALUE_OFFSET(0);
static const int kCodeOffset = TYPED_FRAME_PUSHED_VALUE_OFFSET(1);
DEFINE_TYPED_FRAME_SIZES(2);
static const int kCallerFPOffset = +0 * kPointerSize;
static const int kCallerPCOffset = kFPOnStackSize;
// FP-relative displacement of the caller's SP. It points just
// below the saved PC.
static const int kCallerSPDisplacement = kCallerPCOffset + kPCOnStackSize;
static const int kConstantPoolOffset = 0; // Not used
};
class JavaScriptFrameConstants : public AllStatic {
public:
// FP-relative.
static const int kLocal0Offset = StandardFrameConstants::kExpressionsOffset;
static const int kLastParameterOffset = kFPOnStackSize + kPCOnStackSize;
static const int kFunctionOffset = StandardFrameConstants::kFunctionOffset;
// Caller SP-relative.
static const int kParam0Offset = -2 * kPointerSize;
static const int kReceiverOffset = -1 * kPointerSize;
};
} // namespace internal
} // namespace v8
#endif // V8_X64_FRAME_CONSTANTS_X64_H_
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