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1 // Copyright (c) 2011, 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/instructions.h" | 8 #include "vm/instructions.h" |
9 #include "vm/object.h" | 9 #include "vm/object.h" |
10 | 10 |
11 namespace dart { | 11 namespace dart { |
12 | 12 |
13 bool Instruction::TestBytesWith(const int* data, int num_bytes) const { | 13 bool InstructionPattern::TestBytesWith(const int* data, int num_bytes) const { |
14 ASSERT(data != NULL); | 14 ASSERT(data != NULL); |
15 const uint8_t* byte_array = reinterpret_cast<const uint8_t*>(start_); | 15 const uint8_t* byte_array = reinterpret_cast<const uint8_t*>(start_); |
16 for (int i = 0; i < num_bytes; i++) { | 16 for (int i = 0; i < num_bytes; i++) { |
17 // Skip comparison for data[i] < 0. | 17 // Skip comparison for data[i] < 0. |
18 if ((data[i] >= 0) && (byte_array[i] != (0xFF & data[i]))) { | 18 if ((data[i] >= 0) && (byte_array[i] != (0xFF & data[i]))) { |
19 return false; | 19 return false; |
20 } | 20 } |
21 } | 21 } |
22 return true; | 22 return true; |
23 } | 23 } |
24 | 24 |
25 | 25 |
26 uword CallOrJump::TargetAddress() const { | 26 uword CallOrJumpPattern::TargetAddress() const { |
27 ASSERT(IsValid()); | 27 ASSERT(IsValid()); |
28 return *reinterpret_cast<uword*>(start() + 2); | 28 return *reinterpret_cast<uword*>(start() + 2); |
29 } | 29 } |
30 | 30 |
31 | 31 |
32 void CallOrJump::SetTargetAddress(uword target) const { | 32 void CallOrJumpPattern::SetTargetAddress(uword target) const { |
33 ASSERT(IsValid()); | 33 ASSERT(IsValid()); |
34 *reinterpret_cast<uword*>(start() + 2) = target; | 34 *reinterpret_cast<uword*>(start() + 2) = target; |
35 } | 35 } |
36 | 36 |
37 | 37 |
38 const int* Call::pattern() const { | 38 const int* CallPattern::pattern() const { |
39 // movq $target, TMP | 39 // movq $target, TMP |
40 // callq *TMP | 40 // callq *TMP |
41 static const int kCallPattern[kLengthInBytes] = | 41 static const int kCallPattern[kLengthInBytes] = |
42 {0x49, 0xBB, -1, -1, -1, -1, -1, -1, -1, -1, 0x41, 0xFF, 0xD3}; | 42 {0x49, 0xBB, -1, -1, -1, -1, -1, -1, -1, -1, 0x41, 0xFF, 0xD3}; |
43 return kCallPattern; | 43 return kCallPattern; |
44 } | 44 } |
45 | 45 |
46 | 46 |
47 const int* Jump::pattern() const { | 47 const int* JumpPattern::pattern() const { |
48 // movq $target, TMP | 48 // movq $target, TMP |
49 // jmpq TMP | 49 // jmpq TMP |
50 static const int kJumpPattern[kLengthInBytes] = | 50 static const int kJumpPattern[kLengthInBytes] = |
51 {0x49, 0xBB, -1, -1, -1, -1, -1, -1, -1, -1, 0x41, 0xFF, 0xE3}; | 51 {0x49, 0xBB, -1, -1, -1, -1, -1, -1, -1, -1, 0x41, 0xFF, 0xE3}; |
52 return kJumpPattern; | 52 return kJumpPattern; |
53 } | 53 } |
54 | 54 |
55 | 55 |
56 } // namespace dart | 56 } // namespace dart |
57 | 57 |
58 #endif // defined TARGET_ARCH_X64 | 58 #endif // defined TARGET_ARCH_X64 |
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