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Issue 131853006: Fix debugger stub patching on x64 architecture (Closed) Base URL: http://dart.googlecode.com/svn/branches/bleeding_edge/dart/
Patch Set: Created 6 years, 11 months ago
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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/cpu.h" 8 #include "vm/cpu.h"
9 #include "vm/instructions.h" 9 #include "vm/instructions.h"
10 #include "vm/object.h" 10 #include "vm/object.h"
11 11
12 namespace dart { 12 namespace dart {
13 13
14 intptr_t InstructionPattern::IndexFromPPLoad(uword start) { 14 intptr_t InstructionPattern::IndexFromPPLoad(uword start) {
15 int32_t offset = *reinterpret_cast<int32_t*>(start); 15 int32_t offset = *reinterpret_cast<int32_t*>(start);
16 offset += kHeapObjectTag; 16 offset += kHeapObjectTag;
17 return (offset - Array::data_offset()) / kWordSize; 17 return (offset - Array::data_offset()) / kWordSize;
18 } 18 }
19 19
20 20
21 intptr_t InstructionPattern::OffsetFromPPIndex(intptr_t index) {
22 intptr_t offset = Array::element_offset(index);
23 return offset - kHeapObjectTag;
24 }
25
26
21 bool InstructionPattern::TestBytesWith(const int* data, int num_bytes) const { 27 bool InstructionPattern::TestBytesWith(const int* data, int num_bytes) const {
22 ASSERT(data != NULL); 28 ASSERT(data != NULL);
23 const uint8_t* byte_array = reinterpret_cast<const uint8_t*>(start_); 29 const uint8_t* byte_array = reinterpret_cast<const uint8_t*>(start_);
24 for (int i = 0; i < num_bytes; i++) { 30 for (int i = 0; i < num_bytes; i++) {
25 // Skip comparison for data[i] < 0. 31 // Skip comparison for data[i] < 0.
26 if ((data[i] >= 0) && (byte_array[i] != (0xFF & data[i]))) { 32 if ((data[i] >= 0) && (byte_array[i] != (0xFF & data[i]))) {
27 return false; 33 return false;
28 } 34 }
29 } 35 }
30 return true; 36 return true;
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86 92
87 93
88 const int* ShortCallPattern::pattern() const { 94 const int* ShortCallPattern::pattern() const {
89 static const int kCallPattern[kLengthInBytes] = {0xE8, -1, -1, -1, -1}; 95 static const int kCallPattern[kLengthInBytes] = {0xE8, -1, -1, -1, -1};
90 return kCallPattern; 96 return kCallPattern;
91 } 97 }
92 98
93 } // namespace dart 99 } // namespace dart
94 100
95 #endif // defined TARGET_ARCH_X64 101 #endif // defined TARGET_ARCH_X64
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