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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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| 43 // Running without a simulator on a native mips platform. | 43 // Running without a simulator on a native mips platform. |
| 44 | 44 |
| 45 namespace v8 { | 45 namespace v8 { |
| 46 namespace internal { | 46 namespace internal { |
| 47 | 47 |
| 48 // When running without a simulator we call the entry directly. | 48 // When running without a simulator we call the entry directly. |
| 49 #define CALL_GENERATED_CODE(entry, p0, p1, p2, p3, p4) \ | 49 #define CALL_GENERATED_CODE(entry, p0, p1, p2, p3, p4) \ |
| 50 entry(p0, p1, p2, p3, p4) | 50 entry(p0, p1, p2, p3, p4) |
| 51 | 51 |
| 52 typedef int (*mips_regexp_matcher)(String*, int, const byte*, const byte*, | 52 typedef int (*mips_regexp_matcher)(String*, int, const byte*, const byte*, |
| 53 int*, Address, int, Isolate*); | 53 void*, int*, Address, int, Isolate*); |
| 54 | 54 |
| 55 | 55 |
| 56 // Call the generated regexp code directly. The code at the entry address | 56 // Call the generated regexp code directly. The code at the entry address |
| 57 // should act as a function matching the type arm_regexp_matcher. | 57 // should act as a function matching the type arm_regexp_matcher. |
| 58 // The fifth argument is a dummy that reserves the space used for | 58 // The fifth argument is a dummy that reserves the space used for |
| 59 // the return address added by the ExitFrame in native calls. | 59 // the return address added by the ExitFrame in native calls. |
| 60 #define CALL_GENERATED_REGEXP_CODE(entry, p0, p1, p2, p3, p4, p5, p6, p7) \ | 60 #define CALL_GENERATED_REGEXP_CODE(entry, p0, p1, p2, p3, p4, p5, p6, p7) \ |
| 61 (FUNCTION_CAST<mips_regexp_matcher>(entry)(p0, p1, p2, p3, p4, p5, p6, p7)) | 61 (FUNCTION_CAST<mips_regexp_matcher>(entry)( \ |
| 62 p0, p1, p2, p3, NULL, p4, p5, p6, p7)) |
| 62 | 63 |
| 63 #define TRY_CATCH_FROM_ADDRESS(try_catch_address) \ | 64 #define TRY_CATCH_FROM_ADDRESS(try_catch_address) \ |
| 64 reinterpret_cast<TryCatch*>(try_catch_address) | 65 reinterpret_cast<TryCatch*>(try_catch_address) |
| 65 | 66 |
| 66 // The stack limit beyond which we will throw stack overflow errors in | 67 // The stack limit beyond which we will throw stack overflow errors in |
| 67 // generated code. Because generated code on mips uses the C stack, we | 68 // generated code. Because generated code on mips uses the C stack, we |
| 68 // just use the C stack limit. | 69 // just use the C stack limit. |
| 69 class SimulatorStack : public v8::internal::AllStatic { | 70 class SimulatorStack : public v8::internal::AllStatic { |
| 70 public: | 71 public: |
| 71 static inline uintptr_t JsLimitFromCLimit(Isolate* isolate, | 72 static inline uintptr_t JsLimitFromCLimit(Isolate* isolate, |
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| 354 | 355 |
| 355 | 356 |
| 356 // When running with the simulator transition into simulated execution at this | 357 // When running with the simulator transition into simulated execution at this |
| 357 // point. | 358 // point. |
| 358 #define CALL_GENERATED_CODE(entry, p0, p1, p2, p3, p4) \ | 359 #define CALL_GENERATED_CODE(entry, p0, p1, p2, p3, p4) \ |
| 359 reinterpret_cast<Object*>(Simulator::current(Isolate::Current())->Call( \ | 360 reinterpret_cast<Object*>(Simulator::current(Isolate::Current())->Call( \ |
| 360 FUNCTION_ADDR(entry), 5, p0, p1, p2, p3, p4)) | 361 FUNCTION_ADDR(entry), 5, p0, p1, p2, p3, p4)) |
| 361 | 362 |
| 362 #define CALL_GENERATED_REGEXP_CODE(entry, p0, p1, p2, p3, p4, p5, p6, p7) \ | 363 #define CALL_GENERATED_REGEXP_CODE(entry, p0, p1, p2, p3, p4, p5, p6, p7) \ |
| 363 Simulator::current(Isolate::Current())->Call( \ | 364 Simulator::current(Isolate::Current())->Call( \ |
| 364 entry, 8, p0, p1, p2, p3, p4, p5, p6, p7) | 365 entry, 9, p0, p1, p2, p3, NULL, p4, p5, p6, p7) |
| 365 | 366 |
| 366 #define TRY_CATCH_FROM_ADDRESS(try_catch_address) \ | 367 #define TRY_CATCH_FROM_ADDRESS(try_catch_address) \ |
| 367 try_catch_address == NULL ? \ | 368 try_catch_address == NULL ? \ |
| 368 NULL : *(reinterpret_cast<TryCatch**>(try_catch_address)) | 369 NULL : *(reinterpret_cast<TryCatch**>(try_catch_address)) |
| 369 | 370 |
| 370 | 371 |
| 371 // The simulator has its own stack. Thus it has a different stack limit from | 372 // The simulator has its own stack. Thus it has a different stack limit from |
| 372 // the C-based native code. Setting the c_limit to indicate a very small | 373 // the C-based native code. Setting the c_limit to indicate a very small |
| 373 // stack cause stack overflow errors, since the simulator ignores the input. | 374 // stack cause stack overflow errors, since the simulator ignores the input. |
| 374 // This is unlikely to be an issue in practice, though it might cause testing | 375 // This is unlikely to be an issue in practice, though it might cause testing |
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| 388 static inline void UnregisterCTryCatch() { | 389 static inline void UnregisterCTryCatch() { |
| 389 Simulator::current(Isolate::Current())->PopAddress(); | 390 Simulator::current(Isolate::Current())->PopAddress(); |
| 390 } | 391 } |
| 391 }; | 392 }; |
| 392 | 393 |
| 393 } } // namespace v8::internal | 394 } } // namespace v8::internal |
| 394 | 395 |
| 395 #endif // !defined(USE_SIMULATOR) | 396 #endif // !defined(USE_SIMULATOR) |
| 396 #endif // V8_MIPS_SIMULATOR_MIPS_H_ | 397 #endif // V8_MIPS_SIMULATOR_MIPS_H_ |
| 397 | 398 |
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