| // 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_X64_FRAME_CONSTANTS_X64_H_ |
| #define V8_EXECUTION_X64_FRAME_CONSTANTS_X64_H_ |
| |
| #include "src/base/macros.h" |
| #include "src/execution/frame-constants.h" |
| |
| namespace v8 { |
| namespace internal { |
| |
| class EntryFrameConstants : public AllStatic { |
| public: |
| #ifdef V8_TARGET_OS_WIN |
| static constexpr int kCalleeSaveXMMRegisters = 10; |
| static constexpr int kXMMRegisterSize = 16; |
| static constexpr int kXMMRegistersBlockSize = |
| kXMMRegisterSize * kCalleeSaveXMMRegisters; |
| |
| // This is the offset to where JSEntry pushes the current value of |
| // Isolate::c_entry_fp onto the stack. |
| // On x64, there are 7 pushq() and 3 Push() calls between setting up rbp and |
| // pushing the c_entry_fp, plus we manually allocate kXMMRegistersBlockSize |
| // bytes on the stack. |
| static constexpr int kCallerFPOffset = -3 * kSystemPointerSize + |
| -7 * kSystemPointerSize - |
| kXMMRegistersBlockSize; |
| |
| // Stack offsets for arguments passed to JSEntry. |
| static constexpr int kArgcOffset = 6 * kSystemPointerSize; |
| static constexpr int kArgvOffset = 7 * kSystemPointerSize; |
| #else |
| // This is the offset to where JSEntry pushes the current value of |
| // Isolate::c_entry_fp onto the stack. |
| // On x64, there are 5 pushq() and 3 Push() calls between setting up rbp and |
| // pushing the c_entry_fp. |
| static constexpr int kCallerFPOffset = |
| -3 * kSystemPointerSize + -5 * kSystemPointerSize; |
| #endif |
| }; |
| |
| 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 = kFPOnStackSize; |
| |
| // FP-relative displacement of the caller's SP. It points just |
| // below the saved PC. |
| static constexpr int kCallerSPDisplacement = kCallerPCOffset + kPCOnStackSize; |
| |
| static constexpr int kConstantPoolOffset = 0; // Not used |
| }; |
| |
| class WasmCompileLazyFrameConstants : public TypedFrameConstants { |
| public: |
| static constexpr int kNumberOfSavedGpParamRegs = 6; |
| 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 = kFPOnStackSize + kPCOnStackSize; |
| 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_X64_FRAME_CONSTANTS_X64_H_ |