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 "base/bit_utils.h" 21 #include "quick/quick_method_frame_info.h" 22 #include "registers_arm.h" 23 #include "runtime.h" // for Runtime::CalleeSaveType. 24 25 namespace art { 26 namespace arm { 27 28 static constexpr uint32_t kArmCalleeSaveAlwaysSpills = 29 (1 << art::arm::LR); 30 static constexpr uint32_t kArmCalleeSaveRefSpills = 31 (1 << art::arm::R5) | (1 << art::arm::R6) | (1 << art::arm::R7) | (1 << art::arm::R8) | 32 (1 << art::arm::R10) | (1 << art::arm::R11); 33 static constexpr uint32_t kArmCalleeSaveArgSpills = 34 (1 << art::arm::R1) | (1 << art::arm::R2) | (1 << art::arm::R3); 35 static constexpr uint32_t kArmCalleeSaveAllSpills = 36 (1 << art::arm::R4) | (1 << art::arm::R9); 37 static constexpr uint32_t kArmCalleeSaveEverythingSpills = 38 (1 << art::arm::R0) | (1 << art::arm::R1) | (1 << art::arm::R2) | (1 << art::arm::R3) | 39 (1 << art::arm::R4) | (1 << art::arm::R9) | (1 << art::arm::R12); 40 41 static constexpr uint32_t kArmCalleeSaveFpAlwaysSpills = 0; 42 static constexpr uint32_t kArmCalleeSaveFpRefSpills = 0; 43 static constexpr uint32_t kArmCalleeSaveFpArgSpills = 44 (1 << art::arm::S0) | (1 << art::arm::S1) | (1 << art::arm::S2) | (1 << art::arm::S3) | 45 (1 << art::arm::S4) | (1 << art::arm::S5) | (1 << art::arm::S6) | (1 << art::arm::S7) | 46 (1 << art::arm::S8) | (1 << art::arm::S9) | (1 << art::arm::S10) | (1 << art::arm::S11) | 47 (1 << art::arm::S12) | (1 << art::arm::S13) | (1 << art::arm::S14) | (1 << art::arm::S15); 48 static constexpr uint32_t kArmCalleeSaveFpAllSpills = 49 (1 << art::arm::S16) | (1 << art::arm::S17) | (1 << art::arm::S18) | (1 << art::arm::S19) | 50 (1 << art::arm::S20) | (1 << art::arm::S21) | (1 << art::arm::S22) | (1 << art::arm::S23) | 51 (1 << art::arm::S24) | (1 << art::arm::S25) | (1 << art::arm::S26) | (1 << art::arm::S27) | 52 (1 << art::arm::S28) | (1 << art::arm::S29) | (1 << art::arm::S30) | (1 << art::arm::S31); 53 static constexpr uint32_t kArmCalleeSaveFpEverythingSpills = 54 kArmCalleeSaveFpArgSpills | kArmCalleeSaveFpAllSpills; 55 ArmCalleeSaveCoreSpills(Runtime::CalleeSaveType type)56constexpr uint32_t ArmCalleeSaveCoreSpills(Runtime::CalleeSaveType type) { 57 return kArmCalleeSaveAlwaysSpills | kArmCalleeSaveRefSpills | 58 (type == Runtime::kSaveRefsAndArgs ? kArmCalleeSaveArgSpills : 0) | 59 (type == Runtime::kSaveAllCalleeSaves ? kArmCalleeSaveAllSpills : 0) | 60 (type == Runtime::kSaveEverything ? kArmCalleeSaveEverythingSpills : 0); 61 } 62 ArmCalleeSaveFpSpills(Runtime::CalleeSaveType type)63constexpr uint32_t ArmCalleeSaveFpSpills(Runtime::CalleeSaveType type) { 64 return kArmCalleeSaveFpAlwaysSpills | kArmCalleeSaveFpRefSpills | 65 (type == Runtime::kSaveRefsAndArgs ? kArmCalleeSaveFpArgSpills : 0) | 66 (type == Runtime::kSaveAllCalleeSaves ? kArmCalleeSaveFpAllSpills : 0) | 67 (type == Runtime::kSaveEverything ? kArmCalleeSaveFpEverythingSpills : 0); 68 } 69 ArmCalleeSaveFrameSize(Runtime::CalleeSaveType type)70constexpr uint32_t ArmCalleeSaveFrameSize(Runtime::CalleeSaveType type) { 71 return RoundUp((POPCOUNT(ArmCalleeSaveCoreSpills(type)) /* gprs */ + 72 POPCOUNT(ArmCalleeSaveFpSpills(type)) /* fprs */ + 73 1 /* Method* */) * static_cast<size_t>(kArmPointerSize), kStackAlignment); 74 } 75 ArmCalleeSaveMethodFrameInfo(Runtime::CalleeSaveType type)76constexpr QuickMethodFrameInfo ArmCalleeSaveMethodFrameInfo(Runtime::CalleeSaveType type) { 77 return QuickMethodFrameInfo(ArmCalleeSaveFrameSize(type), 78 ArmCalleeSaveCoreSpills(type), 79 ArmCalleeSaveFpSpills(type)); 80 } 81 ArmCalleeSaveFpr1Offset(Runtime::CalleeSaveType type)82constexpr size_t ArmCalleeSaveFpr1Offset(Runtime::CalleeSaveType type) { 83 return ArmCalleeSaveFrameSize(type) - 84 (POPCOUNT(ArmCalleeSaveCoreSpills(type)) + 85 POPCOUNT(ArmCalleeSaveFpSpills(type))) * static_cast<size_t>(kArmPointerSize); 86 } 87 ArmCalleeSaveGpr1Offset(Runtime::CalleeSaveType type)88constexpr size_t ArmCalleeSaveGpr1Offset(Runtime::CalleeSaveType type) { 89 return ArmCalleeSaveFrameSize(type) - 90 POPCOUNT(ArmCalleeSaveCoreSpills(type)) * static_cast<size_t>(kArmPointerSize); 91 } 92 ArmCalleeSaveLrOffset(Runtime::CalleeSaveType type)93constexpr size_t ArmCalleeSaveLrOffset(Runtime::CalleeSaveType type) { 94 return ArmCalleeSaveFrameSize(type) - 95 POPCOUNT(ArmCalleeSaveCoreSpills(type) & (-(1 << LR))) * static_cast<size_t>(kArmPointerSize); 96 } 97 98 } // namespace arm 99 } // namespace art 100 101 #endif // ART_RUNTIME_ARCH_ARM_QUICK_METHOD_FRAME_INFO_ARM_H_ 102