| // 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_EXECUTION_IA32_FRAME_CONSTANTS_IA32_H_ |
| #define V8_EXECUTION_IA32_FRAME_CONSTANTS_IA32_H_ |
| |
| #include "src/base/macros.h" |
| #include "src/execution/frame-constants.h" |
| |
| namespace v8 { |
| namespace internal { |
| |
| class EntryFrameConstants : public AllStatic { |
| public: |
| // This is the offset to where JSEntry pushes the current value of |
| // Isolate::c_entry_fp onto the stack. |
| static constexpr int kCallerFPOffset = -6 * kSystemPointerSize; |
| |
| // EntryFrame is used by JSEntry, JSConstructEntry and JSRunMicrotasksEntry. |
| // All of them take |root_register_value| as the first parameter. |
| static constexpr int kRootRegisterValueOffset = +2 * kSystemPointerSize; |
| |
| // Rest of parameters passed to JSEntry and JSConstructEntry. |
| static constexpr int kNewTargetArgOffset = +3 * kSystemPointerSize; |
| static constexpr int kFunctionArgOffset = +4 * kSystemPointerSize; |
| static constexpr int kReceiverArgOffset = +5 * kSystemPointerSize; |
| static constexpr int kArgcOffset = +6 * kSystemPointerSize; |
| static constexpr int kArgvOffset = +7 * kSystemPointerSize; |
| |
| // Rest of parameters passed to JSRunMicrotasksEntry. |
| static constexpr int kMicrotaskQueueArgOffset = +3 * kSystemPointerSize; |
| }; |
| |
| class ExitFrameConstants : public TypedFrameConstants { |
| public: |
| static constexpr int kSPOffset = TYPED_FRAME_PUSHED_VALUE_OFFSET(0); |
| DEFINE_TYPED_FRAME_SIZES(1); |
| |
| static constexpr int kCallerFPOffset = 0 * kSystemPointerSize; |
| static constexpr int kCallerPCOffset = +1 * kSystemPointerSize; |
| |
| // FP-relative displacement of the caller's SP. It points just |
| // below the saved PC. |
| static constexpr int kCallerSPDisplacement = +2 * kSystemPointerSize; |
| |
| static constexpr int kConstantPoolOffset = 0; // Not used |
| }; |
| |
| class WasmCompileLazyFrameConstants : public TypedFrameConstants { |
| public: |
| static constexpr int kNumberOfSavedGpParamRegs = 4; |
| static constexpr int kNumberOfSavedFpParamRegs = 6; |
| |
| // FP-relative. |
| static constexpr int kWasmInstanceOffset = TYPED_FRAME_PUSHED_VALUE_OFFSET(0); |
| static constexpr int kFixedFrameSizeFromFp = |
| TypedFrameConstants::kFixedFrameSizeFromFp + |
| kNumberOfSavedGpParamRegs * kSystemPointerSize + |
| kNumberOfSavedFpParamRegs * kSimd128Size; |
| }; |
| |
| class JavaScriptFrameConstants : public AllStatic { |
| public: |
| // FP-relative. |
| static constexpr int kLocal0Offset = |
| StandardFrameConstants::kExpressionsOffset; |
| static constexpr int kLastParameterOffset = +2 * kSystemPointerSize; |
| static constexpr int kFunctionOffset = |
| StandardFrameConstants::kFunctionOffset; |
| |
| // Caller SP-relative. |
| static constexpr int kParam0Offset = -2 * kSystemPointerSize; |
| static constexpr int kReceiverOffset = -1 * kSystemPointerSize; |
| }; |
| |
| } // namespace internal |
| } // namespace v8 |
| |
| #endif // V8_EXECUTION_IA32_FRAME_CONSTANTS_IA32_H_ |