1 /* 2 * Copyright (C) 2014 The Android Open Source Project 3 * 4 * Licensed under the Apache License, Version 2.0 (the "License"); 5 * you may not use this file except in compliance with the License. 6 * You may obtain a copy of the License at 7 * 8 * http://www.apache.org/licenses/LICENSE-2.0 9 * 10 * Unless required by applicable law or agreed to in writing, software 11 * distributed under the License is distributed on an "AS IS" BASIS, 12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 13 * See the License for the specific language governing permissions and 14 * limitations under the License. 15 */ 16 17 #ifndef ART_RUNTIME_ARCH_X86_64_CALLEE_SAVE_FRAME_X86_64_H_ 18 #define ART_RUNTIME_ARCH_X86_64_CALLEE_SAVE_FRAME_X86_64_H_ 19 20 #include "arch/instruction_set.h" 21 #include "base/bit_utils.h" 22 #include "base/callee_save_type.h" 23 #include "base/enums.h" 24 #include "quick/quick_method_frame_info.h" 25 #include "registers_x86_64.h" 26 #include "runtime_globals.h" 27 28 namespace art { 29 namespace x86_64 { 30 31 static constexpr uint32_t kX86_64CalleeSaveAlwaysSpills = 32 (1 << art::x86_64::kNumberOfCpuRegisters); // Fake return address callee save. 33 static constexpr uint32_t kX86_64CalleeSaveRefSpills = 34 (1 << art::x86_64::RBX) | (1 << art::x86_64::RBP) | (1 << art::x86_64::R12) | 35 (1 << art::x86_64::R13) | (1 << art::x86_64::R14) | (1 << art::x86_64::R15); 36 static constexpr uint32_t kX86_64CalleeSaveArgSpills = 37 (1 << art::x86_64::RSI) | (1 << art::x86_64::RDX) | (1 << art::x86_64::RCX) | 38 (1 << art::x86_64::R8) | (1 << art::x86_64::R9); 39 static constexpr uint32_t kX86_64CalleeSaveEverythingSpills = 40 (1 << art::x86_64::RAX) | (1 << art::x86_64::RCX) | (1 << art::x86_64::RDX) | 41 (1 << art::x86_64::RSI) | (1 << art::x86_64::RDI) | (1 << art::x86_64::R8) | 42 (1 << art::x86_64::R9) | (1 << art::x86_64::R10) | (1 << art::x86_64::R11); 43 44 static constexpr uint32_t kX86_64CalleeSaveFpArgSpills = 45 (1 << art::x86_64::XMM0) | (1 << art::x86_64::XMM1) | (1 << art::x86_64::XMM2) | 46 (1 << art::x86_64::XMM3) | (1 << art::x86_64::XMM4) | (1 << art::x86_64::XMM5) | 47 (1 << art::x86_64::XMM6) | (1 << art::x86_64::XMM7); 48 static constexpr uint32_t kX86_64CalleeSaveFpSpills = 49 (1 << art::x86_64::XMM12) | (1 << art::x86_64::XMM13) | 50 (1 << art::x86_64::XMM14) | (1 << art::x86_64::XMM15); 51 static constexpr uint32_t kX86_64CalleeSaveFpEverythingSpills = 52 (1 << art::x86_64::XMM0) | (1 << art::x86_64::XMM1) | 53 (1 << art::x86_64::XMM2) | (1 << art::x86_64::XMM3) | 54 (1 << art::x86_64::XMM4) | (1 << art::x86_64::XMM5) | 55 (1 << art::x86_64::XMM6) | (1 << art::x86_64::XMM7) | 56 (1 << art::x86_64::XMM8) | (1 << art::x86_64::XMM9) | 57 (1 << art::x86_64::XMM10) | (1 << art::x86_64::XMM11); 58 59 class X86_64CalleeSaveFrame { 60 public: GetCoreSpills(CalleeSaveType type)61 static constexpr uint32_t GetCoreSpills(CalleeSaveType type) { 62 type = GetCanonicalCalleeSaveType(type); 63 return kX86_64CalleeSaveAlwaysSpills | kX86_64CalleeSaveRefSpills | 64 (type == CalleeSaveType::kSaveRefsAndArgs ? kX86_64CalleeSaveArgSpills : 0) | 65 (type == CalleeSaveType::kSaveEverything ? kX86_64CalleeSaveEverythingSpills : 0); 66 } 67 GetFpSpills(CalleeSaveType type)68 static constexpr uint32_t GetFpSpills(CalleeSaveType type) { 69 type = GetCanonicalCalleeSaveType(type); 70 return kX86_64CalleeSaveFpSpills | 71 (type == CalleeSaveType::kSaveRefsAndArgs ? kX86_64CalleeSaveFpArgSpills : 0) | 72 (type == CalleeSaveType::kSaveEverything ? kX86_64CalleeSaveFpEverythingSpills : 0); 73 } 74 GetFrameSize(CalleeSaveType type)75 static constexpr uint32_t GetFrameSize(CalleeSaveType type) { 76 type = GetCanonicalCalleeSaveType(type); 77 return RoundUp((POPCOUNT(GetCoreSpills(type)) /* gprs */ + 78 POPCOUNT(GetFpSpills(type)) /* fprs */ + 79 1 /* Method* */) * static_cast<size_t>(kX86_64PointerSize), kStackAlignment); 80 } 81 GetMethodFrameInfo(CalleeSaveType type)82 static constexpr QuickMethodFrameInfo GetMethodFrameInfo(CalleeSaveType type) { 83 type = GetCanonicalCalleeSaveType(type); 84 return QuickMethodFrameInfo(GetFrameSize(type), GetCoreSpills(type), GetFpSpills(type)); 85 } 86 GetFpr1Offset(CalleeSaveType type)87 static constexpr size_t GetFpr1Offset(CalleeSaveType type) { 88 type = GetCanonicalCalleeSaveType(type); 89 return GetFrameSize(type) - 90 (POPCOUNT(GetCoreSpills(type)) + 91 POPCOUNT(GetFpSpills(type))) * static_cast<size_t>(kX86_64PointerSize); 92 } 93 GetGpr1Offset(CalleeSaveType type)94 static constexpr size_t GetGpr1Offset(CalleeSaveType type) { 95 type = GetCanonicalCalleeSaveType(type); 96 return GetFrameSize(type) - 97 POPCOUNT(GetCoreSpills(type)) * static_cast<size_t>(kX86_64PointerSize); 98 } 99 GetReturnPcOffset(CalleeSaveType type)100 static constexpr size_t GetReturnPcOffset(CalleeSaveType type) { 101 type = GetCanonicalCalleeSaveType(type); 102 return GetFrameSize(type) - static_cast<size_t>(kX86_64PointerSize); 103 } 104 }; 105 106 } // namespace x86_64 107 } // namespace art 108 109 #endif // ART_RUNTIME_ARCH_X86_64_CALLEE_SAVE_FRAME_X86_64_H_ 110