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| 1 // Copyright (c) 2013, the Dart project authors. Please see the AUTHORS file | 1 // Copyright (c) 2013, the Dart project authors. Please see the AUTHORS file |
| 2 // for details. All rights reserved. Use of this source code is governed by a | 2 // for details. All rights reserved. Use of this source code is governed by a |
| 3 // BSD-style license that can be found in the LICENSE file. | 3 // BSD-style license that can be found in the LICENSE file. |
| 4 | 4 |
| 5 #include "vm/globals.h" // Needed here to get TARGET_ARCH_ARM. | 5 #include "vm/globals.h" // Needed here to get TARGET_ARCH_ARM. |
| 6 #if defined(TARGET_ARCH_ARM) | 6 #if defined(TARGET_ARCH_ARM) |
| 7 | 7 |
| 8 #include "vm/code_patcher.h" | 8 #include "vm/code_patcher.h" |
| 9 | 9 |
| 10 #include "vm/flow_graph_compiler.h" | 10 #include "vm/flow_graph_compiler.h" |
| 11 #include "vm/instructions.h" | 11 #include "vm/instructions.h" |
| 12 #include "vm/object.h" | 12 #include "vm/object.h" |
| 13 | 13 |
| 14 namespace dart { | 14 namespace dart { |
| 15 | 15 |
| 16 RawCode* CodePatcher::GetStaticCallTargetAt(uword return_address, | 16 RawCode* CodePatcher::GetStaticCallTargetAt(uword return_address, |
| 17 const Code& code) { | 17 const Code& code) { |
| 18 ASSERT(code.ContainsInstructionAt(return_address)); | 18 ASSERT(code.ContainsInstructionAt(return_address)); |
| 19 CallPattern call(return_address, code); | 19 CallPattern call(return_address, code); |
| 20 return call.TargetCode(); | 20 return call.TargetCode(); |
| 21 } | 21 } |
| 22 | 22 |
| 23 | |
| 24 void CodePatcher::PatchStaticCallAt(uword return_address, | 23 void CodePatcher::PatchStaticCallAt(uword return_address, |
| 25 const Code& code, | 24 const Code& code, |
| 26 const Code& new_target) { | 25 const Code& new_target) { |
| 27 ASSERT(code.ContainsInstructionAt(return_address)); | 26 ASSERT(code.ContainsInstructionAt(return_address)); |
| 28 CallPattern call(return_address, code); | 27 CallPattern call(return_address, code); |
| 29 call.SetTargetCode(new_target); | 28 call.SetTargetCode(new_target); |
| 30 } | 29 } |
| 31 | 30 |
| 32 | |
| 33 void CodePatcher::InsertDeoptimizationCallAt(uword start) { | 31 void CodePatcher::InsertDeoptimizationCallAt(uword start) { |
| 34 UNREACHABLE(); | 32 UNREACHABLE(); |
| 35 } | 33 } |
| 36 | 34 |
| 37 | |
| 38 RawCode* CodePatcher::GetInstanceCallAt(uword return_address, | 35 RawCode* CodePatcher::GetInstanceCallAt(uword return_address, |
| 39 const Code& code, | 36 const Code& code, |
| 40 ICData* ic_data) { | 37 ICData* ic_data) { |
| 41 ASSERT(code.ContainsInstructionAt(return_address)); | 38 ASSERT(code.ContainsInstructionAt(return_address)); |
| 42 CallPattern call(return_address, code); | 39 CallPattern call(return_address, code); |
| 43 if (ic_data != NULL) { | 40 if (ic_data != NULL) { |
| 44 *ic_data = call.IcData(); | 41 *ic_data = call.IcData(); |
| 45 } | 42 } |
| 46 return call.TargetCode(); | 43 return call.TargetCode(); |
| 47 } | 44 } |
| 48 | 45 |
| 49 | |
| 50 intptr_t CodePatcher::InstanceCallSizeInBytes() { | 46 intptr_t CodePatcher::InstanceCallSizeInBytes() { |
| 51 // The instance call instruction sequence has a variable size on ARM. | 47 // The instance call instruction sequence has a variable size on ARM. |
| 52 UNREACHABLE(); | 48 UNREACHABLE(); |
| 53 return 0; | 49 return 0; |
| 54 } | 50 } |
| 55 | 51 |
| 56 | |
| 57 RawFunction* CodePatcher::GetUnoptimizedStaticCallAt(uword return_address, | 52 RawFunction* CodePatcher::GetUnoptimizedStaticCallAt(uword return_address, |
| 58 const Code& code, | 53 const Code& code, |
| 59 ICData* ic_data_result) { | 54 ICData* ic_data_result) { |
| 60 ASSERT(code.ContainsInstructionAt(return_address)); | 55 ASSERT(code.ContainsInstructionAt(return_address)); |
| 61 CallPattern static_call(return_address, code); | 56 CallPattern static_call(return_address, code); |
| 62 ICData& ic_data = ICData::Handle(); | 57 ICData& ic_data = ICData::Handle(); |
| 63 ic_data ^= static_call.IcData(); | 58 ic_data ^= static_call.IcData(); |
| 64 if (ic_data_result != NULL) { | 59 if (ic_data_result != NULL) { |
| 65 *ic_data_result = ic_data.raw(); | 60 *ic_data_result = ic_data.raw(); |
| 66 } | 61 } |
| 67 return ic_data.GetTargetAt(0); | 62 return ic_data.GetTargetAt(0); |
| 68 } | 63 } |
| 69 | 64 |
| 70 | |
| 71 void CodePatcher::PatchSwitchableCallAt(uword return_address, | 65 void CodePatcher::PatchSwitchableCallAt(uword return_address, |
| 72 const Code& caller_code, | 66 const Code& caller_code, |
| 73 const Object& data, | 67 const Object& data, |
| 74 const Code& target) { | 68 const Code& target) { |
| 75 ASSERT(caller_code.ContainsInstructionAt(return_address)); | 69 ASSERT(caller_code.ContainsInstructionAt(return_address)); |
| 76 SwitchableCallPattern call(return_address, caller_code); | 70 SwitchableCallPattern call(return_address, caller_code); |
| 77 call.SetData(data); | 71 call.SetData(data); |
| 78 call.SetTarget(target); | 72 call.SetTarget(target); |
| 79 } | 73 } |
| 80 | 74 |
| 81 | |
| 82 RawCode* CodePatcher::GetSwitchableCallTargetAt(uword return_address, | 75 RawCode* CodePatcher::GetSwitchableCallTargetAt(uword return_address, |
| 83 const Code& caller_code) { | 76 const Code& caller_code) { |
| 84 ASSERT(caller_code.ContainsInstructionAt(return_address)); | 77 ASSERT(caller_code.ContainsInstructionAt(return_address)); |
| 85 SwitchableCallPattern call(return_address, caller_code); | 78 SwitchableCallPattern call(return_address, caller_code); |
| 86 return call.target(); | 79 return call.target(); |
| 87 } | 80 } |
| 88 | 81 |
| 89 | |
| 90 RawObject* CodePatcher::GetSwitchableCallDataAt(uword return_address, | 82 RawObject* CodePatcher::GetSwitchableCallDataAt(uword return_address, |
| 91 const Code& caller_code) { | 83 const Code& caller_code) { |
| 92 ASSERT(caller_code.ContainsInstructionAt(return_address)); | 84 ASSERT(caller_code.ContainsInstructionAt(return_address)); |
| 93 SwitchableCallPattern call(return_address, caller_code); | 85 SwitchableCallPattern call(return_address, caller_code); |
| 94 return call.data(); | 86 return call.data(); |
| 95 } | 87 } |
| 96 | 88 |
| 97 | |
| 98 void CodePatcher::PatchNativeCallAt(uword return_address, | 89 void CodePatcher::PatchNativeCallAt(uword return_address, |
| 99 const Code& code, | 90 const Code& code, |
| 100 NativeFunction target, | 91 NativeFunction target, |
| 101 const Code& trampoline) { | 92 const Code& trampoline) { |
| 102 ASSERT(code.ContainsInstructionAt(return_address)); | 93 ASSERT(code.ContainsInstructionAt(return_address)); |
| 103 NativeCallPattern call(return_address, code); | 94 NativeCallPattern call(return_address, code); |
| 104 call.set_target(trampoline); | 95 call.set_target(trampoline); |
| 105 call.set_native_function(target); | 96 call.set_native_function(target); |
| 106 } | 97 } |
| 107 | 98 |
| 108 | |
| 109 RawCode* CodePatcher::GetNativeCallAt(uword return_address, | 99 RawCode* CodePatcher::GetNativeCallAt(uword return_address, |
| 110 const Code& code, | 100 const Code& code, |
| 111 NativeFunction* target) { | 101 NativeFunction* target) { |
| 112 ASSERT(code.ContainsInstructionAt(return_address)); | 102 ASSERT(code.ContainsInstructionAt(return_address)); |
| 113 NativeCallPattern call(return_address, code); | 103 NativeCallPattern call(return_address, code); |
| 114 *target = call.native_function(); | 104 *target = call.native_function(); |
| 115 return call.target(); | 105 return call.target(); |
| 116 } | 106 } |
| 117 | 107 |
| 118 } // namespace dart | 108 } // namespace dart |
| 119 | 109 |
| 120 #endif // defined TARGET_ARCH_ARM | 110 #endif // defined TARGET_ARCH_ARM |
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