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| 1 // Copyright 2011 the V8 project authors. All rights reserved. | 1 // Copyright 2011 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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| 24 // THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT | 24 // THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT |
| 25 // (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE | 25 // (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE |
| 26 // OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. | 26 // OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
| 27 | 27 |
| 28 #ifndef V8_X64_FRAMES_X64_H_ | 28 #ifndef V8_X64_FRAMES_X64_H_ |
| 29 #define V8_X64_FRAMES_X64_H_ | 29 #define V8_X64_FRAMES_X64_H_ |
| 30 | 30 |
| 31 namespace v8 { | 31 namespace v8 { |
| 32 namespace internal { | 32 namespace internal { |
| 33 | 33 |
| 34 static const int kNumRegs = 16; | 34 const int kNumRegs = 16; |
| 35 static const RegList kJSCallerSaved = | 35 const RegList kJSCallerSaved = |
| 36 1 << 0 | // rax | 36 1 << 0 | // rax |
| 37 1 << 1 | // rcx | 37 1 << 1 | // rcx |
| 38 1 << 2 | // rdx | 38 1 << 2 | // rdx |
| 39 1 << 3 | // rbx - used as a caller-saved register in JavaScript code | 39 1 << 3 | // rbx - used as a caller-saved register in JavaScript code |
| 40 1 << 7; // rdi - callee function | 40 1 << 7; // rdi - callee function |
| 41 | 41 |
| 42 static const int kNumJSCallerSaved = 5; | 42 const int kNumJSCallerSaved = 5; |
| 43 | 43 |
| 44 typedef Object* JSCallerSavedBuffer[kNumJSCallerSaved]; | 44 typedef Object* JSCallerSavedBuffer[kNumJSCallerSaved]; |
| 45 | 45 |
| 46 // Number of registers for which space is reserved in safepoints. | 46 // Number of registers for which space is reserved in safepoints. |
| 47 static const int kNumSafepointRegisters = 16; | 47 const int kNumSafepointRegisters = 16; |
| 48 | 48 |
| 49 // ---------------------------------------------------- | 49 // ---------------------------------------------------- |
| 50 | 50 |
| 51 class StackHandlerConstants : public AllStatic { | 51 class StackHandlerConstants : public AllStatic { |
| 52 public: | 52 public: |
| 53 static const int kNextOffset = 0 * kPointerSize; | 53 static const int kNextOffset = 0 * kPointerSize; |
| 54 static const int kCodeOffset = 1 * kPointerSize; | 54 static const int kCodeOffset = 1 * kPointerSize; |
| 55 static const int kStateOffset = 2 * kPointerSize; | 55 static const int kStateOffset = 2 * kPointerSize; |
| 56 static const int kContextOffset = 3 * kPointerSize; | 56 static const int kContextOffset = 3 * kPointerSize; |
| 57 static const int kFPOffset = 4 * kPointerSize; | 57 static const int kFPOffset = 4 * kPointerSize; |
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| 122 | 122 |
| 123 | 123 |
| 124 inline Object* JavaScriptFrame::function_slot_object() const { | 124 inline Object* JavaScriptFrame::function_slot_object() const { |
| 125 const int offset = JavaScriptFrameConstants::kFunctionOffset; | 125 const int offset = JavaScriptFrameConstants::kFunctionOffset; |
| 126 return Memory::Object_at(fp() + offset); | 126 return Memory::Object_at(fp() + offset); |
| 127 } | 127 } |
| 128 | 128 |
| 129 } } // namespace v8::internal | 129 } } // namespace v8::internal |
| 130 | 130 |
| 131 #endif // V8_X64_FRAMES_X64_H_ | 131 #endif // V8_X64_FRAMES_X64_H_ |
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