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| 1 // Copyright 2006-2008 the V8 project authors. All rights reserved. | 1 // Copyright 2006-2008 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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| 59 int JSCallerSavedCode(int n); | 59 int JSCallerSavedCode(int n); |
| 60 | 60 |
| 61 | 61 |
| 62 // Callee-saved registers preserved when switching from C to JavaScript | 62 // Callee-saved registers preserved when switching from C to JavaScript |
| 63 static const RegList kCalleeSaved = | 63 static const RegList kCalleeSaved = |
| 64 1 << 4 | // r4 v1 | 64 1 << 4 | // r4 v1 |
| 65 1 << 5 | // r5 v2 | 65 1 << 5 | // r5 v2 |
| 66 1 << 6 | // r6 v3 | 66 1 << 6 | // r6 v3 |
| 67 1 << 7 | // r7 v4 | 67 1 << 7 | // r7 v4 |
| 68 1 << 8 | // r8 v5 (cp in JavaScript code) | 68 1 << 8 | // r8 v5 (cp in JavaScript code) |
| 69 kR9Available | 69 kR9Available << 9 | // r9 v6 |
| 70 << 9 | // r9 v6 | |
| 71 1 << 10 | // r10 v7 | 70 1 << 10 | // r10 v7 |
| 72 1 << 11; // r11 v8 (fp in JavaScript code) | 71 1 << 11; // r11 v8 (fp in JavaScript code) |
| 73 | 72 |
| 74 static const int kNumCalleeSaved = 7 + kR9Available; | 73 static const int kNumCalleeSaved = 7 + kR9Available; |
| 75 | 74 |
| 76 | 75 |
| 77 // Number of registers for which space is reserved in safepoints. Must be a | 76 // Number of registers for which space is reserved in safepoints. Must be a |
| 78 // multiple of 8. | 77 // multiple of 8. |
| 79 // TODO(regis): Only 8 registers may actually be sufficient. Revisit. | 78 // TODO(regis): Only 8 registers may actually be sufficient. Revisit. |
| 80 static const int kNumSafepointRegisters = 16; | 79 static const int kNumSafepointRegisters = 16; |
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| 164 | 163 |
| 165 inline Object* JavaScriptFrame::function_slot_object() const { | 164 inline Object* JavaScriptFrame::function_slot_object() const { |
| 166 const int offset = JavaScriptFrameConstants::kFunctionOffset; | 165 const int offset = JavaScriptFrameConstants::kFunctionOffset; |
| 167 return Memory::Object_at(fp() + offset); | 166 return Memory::Object_at(fp() + offset); |
| 168 } | 167 } |
| 169 | 168 |
| 170 | 169 |
| 171 } } // namespace v8::internal | 170 } } // namespace v8::internal |
| 172 | 171 |
| 173 #endif // V8_ARM_FRAMES_ARM_H_ | 172 #endif // V8_ARM_FRAMES_ARM_H_ |
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