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1 // Copyright (c) 2012, the Dart project authors. Please see the AUTHORS file | 1 // Copyright (c) 2012, 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_X64. | 5 #include "vm/globals.h" // Needed here to get TARGET_ARCH_X64. |
6 #if defined(TARGET_ARCH_X64) | 6 #if defined(TARGET_ARCH_X64) |
7 | 7 |
8 #include "vm/assembler.h" | 8 #include "vm/assembler.h" |
9 #include "vm/code_patcher.h" | 9 #include "vm/code_patcher.h" |
10 #include "vm/cpu.h" | 10 #include "vm/cpu.h" |
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36 reinterpret_cast<uint8_t*>(return_address - kCallPatternSize); | 36 reinterpret_cast<uint8_t*>(return_address - kCallPatternSize); |
37 return (code_bytes[0] == 0x49) && (code_bytes[1] == 0x8B) && | 37 return (code_bytes[0] == 0x49) && (code_bytes[1] == 0x8B) && |
38 (code_bytes[2] == 0x9F) && | 38 (code_bytes[2] == 0x9F) && |
39 (code_bytes[7] == 0x4D) && (code_bytes[8] == 0x8B) && | 39 (code_bytes[7] == 0x4D) && (code_bytes[8] == 0x8B) && |
40 (code_bytes[9] == 0x9F) && | 40 (code_bytes[9] == 0x9F) && |
41 (code_bytes[14] == 0x41) && (code_bytes[15] == 0xFF) && | 41 (code_bytes[14] == 0x41) && (code_bytes[15] == 0xFF) && |
42 (code_bytes[16] == 0xD3); | 42 (code_bytes[16] == 0xD3); |
43 } | 43 } |
44 | 44 |
45 RawObject* ic_data() const { | 45 RawObject* ic_data() const { |
46 int index = InstructionPattern::IndexFromPPLoad(start_ + 3); | 46 intptr_t index = InstructionPattern::IndexFromPPLoad(start_ + 3); |
47 return object_pool_.At(index); | 47 return object_pool_.At(index); |
48 } | 48 } |
49 | 49 |
50 uword target() const { | 50 uword target() const { |
51 int index = InstructionPattern::IndexFromPPLoad(start_ + 10); | 51 intptr_t index = InstructionPattern::IndexFromPPLoad(start_ + 10); |
52 return reinterpret_cast<uword>(object_pool_.At(index)); | 52 return reinterpret_cast<uword>(object_pool_.At(index)); |
53 } | 53 } |
54 | 54 |
55 void set_target(uword target) const { | 55 void set_target(uword target) const { |
56 int index = InstructionPattern::IndexFromPPLoad(start_ + 10); | 56 intptr_t index = InstructionPattern::IndexFromPPLoad(start_ + 10); |
57 const Smi& smi = Smi::Handle(reinterpret_cast<RawSmi*>(target)); | 57 const Smi& smi = Smi::Handle(reinterpret_cast<RawSmi*>(target)); |
58 object_pool_.SetAt(index, smi); | 58 object_pool_.SetAt(index, smi); |
59 // No need to flush the instruction cache, since the code is not modified. | 59 // No need to flush the instruction cache, since the code is not modified. |
60 } | 60 } |
61 | 61 |
62 private: | 62 private: |
63 uword start_; | 63 uword start_; |
64 const Array& object_pool_; | 64 const Array& object_pool_; |
65 DISALLOW_IMPLICIT_CONSTRUCTORS(UnoptimizedCall); | 65 DISALLOW_IMPLICIT_CONSTRUCTORS(UnoptimizedCall); |
66 }; | 66 }; |
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117 static bool IsValid(uword return_address) { | 117 static bool IsValid(uword return_address) { |
118 uint8_t* code_bytes = | 118 uint8_t* code_bytes = |
119 reinterpret_cast<uint8_t*>(return_address - kCallPatternSize); | 119 reinterpret_cast<uint8_t*>(return_address - kCallPatternSize); |
120 return (code_bytes[0] == 0x4D) && (code_bytes[1] == 0x8B) && | 120 return (code_bytes[0] == 0x4D) && (code_bytes[1] == 0x8B) && |
121 (code_bytes[2] == 0x9F) && | 121 (code_bytes[2] == 0x9F) && |
122 (code_bytes[7] == 0x41) && (code_bytes[8] == 0xFF) && | 122 (code_bytes[7] == 0x41) && (code_bytes[8] == 0xFF) && |
123 (code_bytes[9] == 0xD3); | 123 (code_bytes[9] == 0xD3); |
124 } | 124 } |
125 | 125 |
126 uword target() const { | 126 uword target() const { |
127 int index = InstructionPattern::IndexFromPPLoad(start_ + 3); | 127 intptr_t index = InstructionPattern::IndexFromPPLoad(start_ + 3); |
128 return reinterpret_cast<uword>(object_pool_.At(index)); | 128 return reinterpret_cast<uword>(object_pool_.At(index)); |
129 } | 129 } |
130 | 130 |
131 void set_target(uword target) const { | 131 void set_target(uword target) const { |
132 int index = InstructionPattern::IndexFromPPLoad(start_ + 3); | 132 intptr_t index = InstructionPattern::IndexFromPPLoad(start_ + 3); |
133 const Smi& smi = Smi::Handle(reinterpret_cast<RawSmi*>(target)); | 133 const Smi& smi = Smi::Handle(reinterpret_cast<RawSmi*>(target)); |
134 object_pool_.SetAt(index, smi); | 134 object_pool_.SetAt(index, smi); |
135 // No need to flush the instruction cache, since the code is not modified. | 135 // No need to flush the instruction cache, since the code is not modified. |
136 } | 136 } |
137 | 137 |
138 private: | 138 private: |
139 uword start_; | 139 uword start_; |
140 const Array& object_pool_; | 140 const Array& object_pool_; |
141 DISALLOW_IMPLICIT_CONSTRUCTORS(StaticCall); | 141 DISALLOW_IMPLICIT_CONSTRUCTORS(StaticCall); |
142 }; | 142 }; |
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280 | 280 |
281 RawObject* CodePatcher::GetEdgeCounterAt(uword pc, const Code& code) { | 281 RawObject* CodePatcher::GetEdgeCounterAt(uword pc, const Code& code) { |
282 ASSERT(code.ContainsInstructionAt(pc)); | 282 ASSERT(code.ContainsInstructionAt(pc)); |
283 EdgeCounter counter(pc, code); | 283 EdgeCounter counter(pc, code); |
284 return counter.edge_counter(); | 284 return counter.edge_counter(); |
285 } | 285 } |
286 | 286 |
287 } // namespace dart | 287 } // namespace dart |
288 | 288 |
289 #endif // defined TARGET_ARCH_X64 | 289 #endif // defined TARGET_ARCH_X64 |
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