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1 // Copyright 2012 the V8 project authors. All rights reserved. | 1 // Copyright 2012 the V8 project authors. All rights reserved. |
2 // Redistribution and use in source and binary forms, with or without | 2 // Redistribution and use in source and binary forms, with or without |
3 // modification, are permitted provided that the following conditions are | 3 // modification, are permitted provided that the following conditions are |
4 // met: | 4 // met: |
5 // | 5 // |
6 // * Redistributions of source code must retain the above copyright | 6 // * Redistributions of source code must retain the above copyright |
7 // notice, this list of conditions and the following disclaimer. | 7 // notice, this list of conditions and the following disclaimer. |
8 // * Redistributions in binary form must reproduce the above | 8 // * Redistributions in binary form must reproduce the above |
9 // copyright notice, this list of conditions and the following | 9 // copyright notice, this list of conditions and the following |
10 // disclaimer in the documentation and/or other materials provided | 10 // disclaimer in the documentation and/or other materials provided |
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103 // Create a code patcher. | 103 // Create a code patcher. |
104 CodePatcher patcher(pc_, code_size); | 104 CodePatcher patcher(pc_, code_size); |
105 | 105 |
106 // Add a label for checking the size of the code used for returning. | 106 // Add a label for checking the size of the code used for returning. |
107 #ifdef DEBUG | 107 #ifdef DEBUG |
108 Label check_codesize; | 108 Label check_codesize; |
109 patcher.masm()->bind(&check_codesize); | 109 patcher.masm()->bind(&check_codesize); |
110 #endif | 110 #endif |
111 | 111 |
112 // Patch the code. | 112 // Patch the code. |
113 patcher.masm()->movp(kScratchRegister, target, RelocInfo::NONE64); | 113 patcher.masm()->movp(kScratchRegister, target, Assembler::RelocInfoNone()); |
114 patcher.masm()->call(kScratchRegister); | 114 patcher.masm()->call(kScratchRegister); |
115 | 115 |
116 // Check that the size of the code generated is as expected. | 116 // Check that the size of the code generated is as expected. |
117 ASSERT_EQ(Assembler::kCallSequenceLength, | 117 ASSERT_EQ(Assembler::kCallSequenceLength, |
118 patcher.masm()->SizeOfCodeGeneratedSince(&check_codesize)); | 118 patcher.masm()->SizeOfCodeGeneratedSince(&check_codesize)); |
119 | 119 |
120 // Add the requested number of int3 instructions after the call. | 120 // Add the requested number of int3 instructions after the call. |
121 for (int i = 0; i < guard_bytes; i++) { | 121 for (int i = 0; i < guard_bytes; i++) { |
122 patcher.masm()->int3(); | 122 patcher.masm()->int3(); |
123 } | 123 } |
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3181 bool RelocInfo::IsCodedSpecially() { | 3181 bool RelocInfo::IsCodedSpecially() { |
3182 // The deserializer needs to know whether a pointer is specially coded. Being | 3182 // The deserializer needs to know whether a pointer is specially coded. Being |
3183 // specially coded on x64 means that it is a relative 32 bit address, as used | 3183 // specially coded on x64 means that it is a relative 32 bit address, as used |
3184 // by branch instructions. | 3184 // by branch instructions. |
3185 return (1 << rmode_) & kApplyMask; | 3185 return (1 << rmode_) & kApplyMask; |
3186 } | 3186 } |
3187 | 3187 |
3188 } } // namespace v8::internal | 3188 } } // namespace v8::internal |
3189 | 3189 |
3190 #endif // V8_TARGET_ARCH_X64 | 3190 #endif // V8_TARGET_ARCH_X64 |
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