| /* |
| * Copyright (C) 2014 The Android Open Source Project |
| * |
| * Licensed under the Apache License, Version 2.0 (the "License"); |
| * you may not use this file except in compliance with the License. |
| * You may obtain a copy of the License at |
| * |
| * http://www.apache.org/licenses/LICENSE-2.0 |
| * |
| * Unless required by applicable law or agreed to in writing, software |
| * distributed under the License is distributed on an "AS IS" BASIS, |
| * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| * See the License for the specific language governing permissions and |
| * limitations under the License. |
| */ |
| |
| #ifndef ART_RUNTIME_ARCH_X86_CALLEE_SAVE_FRAME_X86_H_ |
| #define ART_RUNTIME_ARCH_X86_CALLEE_SAVE_FRAME_X86_H_ |
| |
| #include "arch/instruction_set.h" |
| #include "base/bit_utils.h" |
| #include "base/callee_save_type.h" |
| #include "base/enums.h" |
| #include "base/macros.h" |
| #include "quick/quick_method_frame_info.h" |
| #include "registers_x86.h" |
| #include "runtime_globals.h" |
| |
| namespace art HIDDEN { |
| namespace x86 { |
| |
| static constexpr uint32_t kX86CalleeSaveAlwaysSpills = |
| (1 << art::x86::kNumberOfCpuRegisters); // Fake return address callee save. |
| static constexpr uint32_t kX86CalleeSaveRefSpills = |
| (1 << art::x86::EBP) | (1 << art::x86::ESI) | (1 << art::x86::EDI); |
| static constexpr uint32_t kX86CalleeSaveArgSpills = |
| (1 << art::x86::ECX) | (1 << art::x86::EDX) | (1 << art::x86::EBX); |
| static constexpr uint32_t kX86CalleeSaveEverythingSpills = |
| (1 << art::x86::EAX) | (1 << art::x86::ECX) | (1 << art::x86::EDX) | (1 << art::x86::EBX); |
| |
| static constexpr uint32_t kX86CalleeSaveFpArgSpills = |
| (1 << art::x86::XMM0) | (1 << art::x86::XMM1) | |
| (1 << art::x86::XMM2) | (1 << art::x86::XMM3); |
| static constexpr uint32_t kX86CalleeSaveFpEverythingSpills = |
| (1 << art::x86::XMM0) | (1 << art::x86::XMM1) | |
| (1 << art::x86::XMM2) | (1 << art::x86::XMM3) | |
| (1 << art::x86::XMM4) | (1 << art::x86::XMM5) | |
| (1 << art::x86::XMM6) | (1 << art::x86::XMM7); |
| |
| class X86CalleeSaveFrame { |
| public: |
| static constexpr uint32_t GetCoreSpills(CalleeSaveType type) { |
| type = GetCanonicalCalleeSaveType(type); |
| return kX86CalleeSaveAlwaysSpills | kX86CalleeSaveRefSpills | |
| (type == CalleeSaveType::kSaveRefsAndArgs ? kX86CalleeSaveArgSpills : 0) | |
| (type == CalleeSaveType::kSaveEverything ? kX86CalleeSaveEverythingSpills : 0); |
| } |
| |
| static constexpr uint32_t GetFpSpills(CalleeSaveType type) { |
| type = GetCanonicalCalleeSaveType(type); |
| return (type == CalleeSaveType::kSaveRefsAndArgs ? kX86CalleeSaveFpArgSpills : 0) | |
| (type == CalleeSaveType::kSaveEverything ? kX86CalleeSaveFpEverythingSpills : 0); |
| } |
| |
| static constexpr uint32_t GetFrameSize(CalleeSaveType type) { |
| type = GetCanonicalCalleeSaveType(type); |
| return RoundUp((POPCOUNT(GetCoreSpills(type)) /* gprs */ + |
| 2 * POPCOUNT(GetFpSpills(type)) /* fprs */ + |
| 1 /* Method* */) * static_cast<size_t>(kX86PointerSize), kStackAlignment); |
| } |
| |
| static constexpr QuickMethodFrameInfo GetMethodFrameInfo(CalleeSaveType type) { |
| type = GetCanonicalCalleeSaveType(type); |
| return QuickMethodFrameInfo(GetFrameSize(type), GetCoreSpills(type), GetFpSpills(type)); |
| } |
| |
| static constexpr size_t GetFpr1Offset(CalleeSaveType type) { |
| type = GetCanonicalCalleeSaveType(type); |
| return GetFrameSize(type) - |
| (POPCOUNT(GetCoreSpills(type)) + |
| 2 * POPCOUNT(GetFpSpills(type))) * static_cast<size_t>(kX86PointerSize); |
| } |
| |
| static constexpr size_t GetGpr1Offset(CalleeSaveType type) { |
| type = GetCanonicalCalleeSaveType(type); |
| return GetFrameSize(type) - |
| POPCOUNT(GetCoreSpills(type)) * static_cast<size_t>(kX86PointerSize); |
| } |
| |
| static constexpr size_t GetReturnPcOffset(CalleeSaveType type) { |
| type = GetCanonicalCalleeSaveType(type); |
| return GetFrameSize(type) - static_cast<size_t>(kX86PointerSize); |
| } |
| }; |
| |
| } // namespace x86 |
| } // namespace art |
| |
| #endif // ART_RUNTIME_ARCH_X86_CALLEE_SAVE_FRAME_X86_H_ |