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_ARM_QUICK_METHOD_FRAME_INFO_ARM_H_ 18 #define ART_RUNTIME_ARCH_ARM_QUICK_METHOD_FRAME_INFO_ARM_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_arm.h" 26 27 namespace art { 28 namespace arm { 29 30 static constexpr uint32_t kArmCalleeSaveAlwaysSpills = 31 (1 << art::arm::LR); 32 static constexpr uint32_t kArmCalleeSaveRefSpills = 33 (1 << art::arm::R5) | (1 << art::arm::R6) | (1 << art::arm::R7) | (1 << art::arm::R8) | 34 (1 << art::arm::R10) | (1 << art::arm::R11); 35 static constexpr uint32_t kArmCalleeSaveArgSpills = 36 (1 << art::arm::R1) | (1 << art::arm::R2) | (1 << art::arm::R3); 37 static constexpr uint32_t kArmCalleeSaveAllSpills = 38 (1 << art::arm::R4) | (1 << art::arm::R9); 39 static constexpr uint32_t kArmCalleeSaveEverythingSpills = 40 (1 << art::arm::R0) | (1 << art::arm::R1) | (1 << art::arm::R2) | (1 << art::arm::R3) | 41 (1 << art::arm::R4) | (1 << art::arm::R9) | (1 << art::arm::R12); 42 43 static constexpr uint32_t kArmCalleeSaveFpAlwaysSpills = 0; 44 static constexpr uint32_t kArmCalleeSaveFpRefSpills = 0; 45 static constexpr uint32_t kArmCalleeSaveFpArgSpills = 46 (1 << art::arm::S0) | (1 << art::arm::S1) | (1 << art::arm::S2) | (1 << art::arm::S3) | 47 (1 << art::arm::S4) | (1 << art::arm::S5) | (1 << art::arm::S6) | (1 << art::arm::S7) | 48 (1 << art::arm::S8) | (1 << art::arm::S9) | (1 << art::arm::S10) | (1 << art::arm::S11) | 49 (1 << art::arm::S12) | (1 << art::arm::S13) | (1 << art::arm::S14) | (1 << art::arm::S15); 50 static constexpr uint32_t kArmCalleeSaveFpAllSpills = 51 (1 << art::arm::S16) | (1 << art::arm::S17) | (1 << art::arm::S18) | (1 << art::arm::S19) | 52 (1 << art::arm::S20) | (1 << art::arm::S21) | (1 << art::arm::S22) | (1 << art::arm::S23) | 53 (1 << art::arm::S24) | (1 << art::arm::S25) | (1 << art::arm::S26) | (1 << art::arm::S27) | 54 (1 << art::arm::S28) | (1 << art::arm::S29) | (1 << art::arm::S30) | (1 << art::arm::S31); 55 static constexpr uint32_t kArmCalleeSaveFpEverythingSpills = 56 kArmCalleeSaveFpArgSpills | kArmCalleeSaveFpAllSpills; 57 58 constexpr uint32_t ArmCalleeSaveCoreSpills(CalleeSaveType type) { 59 return kArmCalleeSaveAlwaysSpills | kArmCalleeSaveRefSpills | 60 (type == CalleeSaveType::kSaveRefsAndArgs ? kArmCalleeSaveArgSpills : 0) | 61 (type == CalleeSaveType::kSaveAllCalleeSaves ? kArmCalleeSaveAllSpills : 0) | 62 (type == CalleeSaveType::kSaveEverything ? kArmCalleeSaveEverythingSpills : 0); 63 } 64 65 constexpr uint32_t ArmCalleeSaveFpSpills(CalleeSaveType type) { 66 return kArmCalleeSaveFpAlwaysSpills | kArmCalleeSaveFpRefSpills | 67 (type == CalleeSaveType::kSaveRefsAndArgs ? kArmCalleeSaveFpArgSpills : 0) | 68 (type == CalleeSaveType::kSaveAllCalleeSaves ? kArmCalleeSaveFpAllSpills : 0) | 69 (type == CalleeSaveType::kSaveEverything ? kArmCalleeSaveFpEverythingSpills : 0); 70 } 71 72 constexpr uint32_t ArmCalleeSaveFrameSize(CalleeSaveType type) { 73 return RoundUp((POPCOUNT(ArmCalleeSaveCoreSpills(type)) /* gprs */ + 74 POPCOUNT(ArmCalleeSaveFpSpills(type)) /* fprs */ + 75 1 /* Method* */) * static_cast<size_t>(kArmPointerSize), kStackAlignment); 76 } 77 78 constexpr QuickMethodFrameInfo ArmCalleeSaveMethodFrameInfo(CalleeSaveType type) { 79 return QuickMethodFrameInfo(ArmCalleeSaveFrameSize(type), 80 ArmCalleeSaveCoreSpills(type), 81 ArmCalleeSaveFpSpills(type)); 82 } 83 84 constexpr size_t ArmCalleeSaveFpr1Offset(CalleeSaveType type) { 85 return ArmCalleeSaveFrameSize(type) - 86 (POPCOUNT(ArmCalleeSaveCoreSpills(type)) + 87 POPCOUNT(ArmCalleeSaveFpSpills(type))) * static_cast<size_t>(kArmPointerSize); 88 } 89 90 constexpr size_t ArmCalleeSaveGpr1Offset(CalleeSaveType type) { 91 return ArmCalleeSaveFrameSize(type) - 92 POPCOUNT(ArmCalleeSaveCoreSpills(type)) * static_cast<size_t>(kArmPointerSize); 93 } 94 95 constexpr size_t ArmCalleeSaveLrOffset(CalleeSaveType type) { 96 return ArmCalleeSaveFrameSize(type) - 97 POPCOUNT(ArmCalleeSaveCoreSpills(type) & (-(1 << LR))) * static_cast<size_t>(kArmPointerSize); 98 } 99 100 } // namespace arm 101 } // namespace art 102 103 #endif // ART_RUNTIME_ARCH_ARM_QUICK_METHOD_FRAME_INFO_ARM_H_ 104
