Stuart Monteith | b95a534 | 2014-03-12 13:32:32 +0000 | [diff] [blame] | 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_ARM64_CONTEXT_ARM64_H_ |
| 18 | #define ART_RUNTIME_ARCH_ARM64_CONTEXT_ARM64_H_ |
| 19 | |
| 20 | #include "arch/context.h" |
| 21 | #include "base/logging.h" |
Andreas Gampe | 794ad76 | 2015-02-23 08:12:24 -0800 | [diff] [blame] | 22 | #include "base/macros.h" |
Stuart Monteith | b95a534 | 2014-03-12 13:32:32 +0000 | [diff] [blame] | 23 | #include "registers_arm64.h" |
| 24 | |
| 25 | namespace art { |
| 26 | namespace arm64 { |
| 27 | |
| 28 | class Arm64Context : public Context { |
| 29 | public: |
| 30 | Arm64Context() { |
| 31 | Reset(); |
| 32 | } |
| 33 | |
| 34 | ~Arm64Context() {} |
| 35 | |
Sebastien Hertz | 0bcb290 | 2014-06-17 15:52:45 +0200 | [diff] [blame] | 36 | void Reset() OVERRIDE; |
Stuart Monteith | b95a534 | 2014-03-12 13:32:32 +0000 | [diff] [blame] | 37 | |
Chih-Hung Hsieh | 3283820 | 2014-10-23 11:07:52 -0700 | [diff] [blame] | 38 | void FillCalleeSaves(const StackVisitor& fr) OVERRIDE SHARED_LOCKS_REQUIRED(Locks::mutator_lock_); |
Stuart Monteith | b95a534 | 2014-03-12 13:32:32 +0000 | [diff] [blame] | 39 | |
Sebastien Hertz | 0bcb290 | 2014-06-17 15:52:45 +0200 | [diff] [blame] | 40 | void SetSP(uintptr_t new_sp) OVERRIDE { |
Sebastien Hertz | 96ba8dc | 2015-01-22 18:57:14 +0100 | [diff] [blame] | 41 | SetGPR(SP, new_sp); |
Stuart Monteith | b95a534 | 2014-03-12 13:32:32 +0000 | [diff] [blame] | 42 | } |
| 43 | |
Sebastien Hertz | 0bcb290 | 2014-06-17 15:52:45 +0200 | [diff] [blame] | 44 | void SetPC(uintptr_t new_lr) OVERRIDE { |
Sebastien Hertz | 96ba8dc | 2015-01-22 18:57:14 +0100 | [diff] [blame] | 45 | SetGPR(LR, new_lr); |
| 46 | } |
| 47 | |
| 48 | bool IsAccessibleGPR(uint32_t reg) OVERRIDE { |
| 49 | DCHECK_LT(reg, static_cast<uint32_t>(kNumberOfXRegisters)); |
| 50 | return gprs_[reg] != nullptr; |
Stuart Monteith | b95a534 | 2014-03-12 13:32:32 +0000 | [diff] [blame] | 51 | } |
| 52 | |
Sebastien Hertz | 0bcb290 | 2014-06-17 15:52:45 +0200 | [diff] [blame] | 53 | uintptr_t* GetGPRAddress(uint32_t reg) OVERRIDE { |
Alexandre Rames | 37c92df | 2014-10-17 14:35:27 +0100 | [diff] [blame] | 54 | DCHECK_LT(reg, static_cast<uint32_t>(kNumberOfXRegisters)); |
Stuart Monteith | b95a534 | 2014-03-12 13:32:32 +0000 | [diff] [blame] | 55 | return gprs_[reg]; |
| 56 | } |
| 57 | |
Sebastien Hertz | 96ba8dc | 2015-01-22 18:57:14 +0100 | [diff] [blame] | 58 | uintptr_t GetGPR(uint32_t reg) OVERRIDE { |
Alexandre Rames | 37c92df | 2014-10-17 14:35:27 +0100 | [diff] [blame] | 59 | DCHECK_LT(reg, static_cast<uint32_t>(kNumberOfXRegisters)); |
Sebastien Hertz | 96ba8dc | 2015-01-22 18:57:14 +0100 | [diff] [blame] | 60 | DCHECK(IsAccessibleGPR(reg)); |
| 61 | return *gprs_[reg]; |
Stuart Monteith | b95a534 | 2014-03-12 13:32:32 +0000 | [diff] [blame] | 62 | } |
| 63 | |
Sebastien Hertz | 96ba8dc | 2015-01-22 18:57:14 +0100 | [diff] [blame] | 64 | void SetGPR(uint32_t reg, uintptr_t value) OVERRIDE; |
Sebastien Hertz | 0bcb290 | 2014-06-17 15:52:45 +0200 | [diff] [blame] | 65 | |
Sebastien Hertz | 96ba8dc | 2015-01-22 18:57:14 +0100 | [diff] [blame] | 66 | bool IsAccessibleFPR(uint32_t reg) OVERRIDE { |
Sebastien Hertz | 0bcb290 | 2014-06-17 15:52:45 +0200 | [diff] [blame] | 67 | DCHECK_LT(reg, static_cast<uint32_t>(kNumberOfDRegisters)); |
Sebastien Hertz | 96ba8dc | 2015-01-22 18:57:14 +0100 | [diff] [blame] | 68 | return fprs_[reg] != nullptr; |
Sebastien Hertz | 0bcb290 | 2014-06-17 15:52:45 +0200 | [diff] [blame] | 69 | } |
| 70 | |
Sebastien Hertz | 96ba8dc | 2015-01-22 18:57:14 +0100 | [diff] [blame] | 71 | uintptr_t GetFPR(uint32_t reg) OVERRIDE { |
| 72 | DCHECK_LT(reg, static_cast<uint32_t>(kNumberOfDRegisters)); |
| 73 | DCHECK(IsAccessibleFPR(reg)); |
| 74 | return *fprs_[reg]; |
| 75 | } |
| 76 | |
| 77 | void SetFPR(uint32_t reg, uintptr_t value) OVERRIDE; |
Sebastien Hertz | 0bcb290 | 2014-06-17 15:52:45 +0200 | [diff] [blame] | 78 | |
| 79 | void SmashCallerSaves() OVERRIDE; |
Andreas Gampe | 794ad76 | 2015-02-23 08:12:24 -0800 | [diff] [blame] | 80 | NO_RETURN void DoLongJump() OVERRIDE; |
Stuart Monteith | b95a534 | 2014-03-12 13:32:32 +0000 | [diff] [blame] | 81 | |
| 82 | private: |
| 83 | // Pointers to register locations, initialized to NULL or the specific registers below. |
Alexandre Rames | 37c92df | 2014-10-17 14:35:27 +0100 | [diff] [blame] | 84 | uintptr_t* gprs_[kNumberOfXRegisters]; |
Stuart Monteith | b95a534 | 2014-03-12 13:32:32 +0000 | [diff] [blame] | 85 | uint64_t * fprs_[kNumberOfDRegisters]; |
| 86 | // Hold values for sp and pc if they are not located within a stack frame. |
| 87 | uintptr_t sp_, pc_; |
| 88 | }; |
| 89 | |
| 90 | } // namespace arm64 |
| 91 | } // namespace art |
| 92 | |
| 93 | #endif // ART_RUNTIME_ARCH_ARM64_CONTEXT_ARM64_H_ |