219 static double (*_intrinsic_pow)(double, double); |
219 static double (*_intrinsic_pow)(double, double); |
220 static double (*_intrinsic_sin)(double); |
220 static double (*_intrinsic_sin)(double); |
221 static double (*_intrinsic_cos)(double); |
221 static double (*_intrinsic_cos)(double); |
222 static double (*_intrinsic_tan)(double); |
222 static double (*_intrinsic_tan)(double); |
223 |
223 |
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224 // Safefetch stubs. |
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225 static address _safefetch32_entry; |
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226 static address _safefetch32_fault_pc; |
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227 static address _safefetch32_continuation_pc; |
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228 static address _safefetchN_entry; |
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229 static address _safefetchN_fault_pc; |
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230 static address _safefetchN_continuation_pc; |
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231 |
224 public: |
232 public: |
225 // Initialization/Testing |
233 // Initialization/Testing |
226 static void initialize1(); // must happen before universe::genesis |
234 static void initialize1(); // must happen before universe::genesis |
227 static void initialize2(); // must happen after universe::genesis |
235 static void initialize2(); // must happen after universe::genesis |
228 |
236 |
380 assert(_intrinsic_tan != NULL, "must be defined"); |
388 assert(_intrinsic_tan != NULL, "must be defined"); |
381 return _intrinsic_tan(d); |
389 return _intrinsic_tan(d); |
382 } |
390 } |
383 |
391 |
384 // |
392 // |
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393 // Safefetch stub support |
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394 // |
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395 |
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396 typedef int (*SafeFetch32Stub)(int* adr, int errValue); |
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397 typedef intptr_t (*SafeFetchNStub) (intptr_t* adr, intptr_t errValue); |
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398 |
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399 static SafeFetch32Stub SafeFetch32_stub() { return CAST_TO_FN_PTR(SafeFetch32Stub, _safefetch32_entry); } |
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400 static SafeFetchNStub SafeFetchN_stub() { return CAST_TO_FN_PTR(SafeFetchNStub, _safefetchN_entry); } |
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401 |
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402 static bool is_safefetch_fault(address pc) { |
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403 return pc != NULL && |
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404 (pc == _safefetch32_fault_pc || |
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405 pc == _safefetchN_fault_pc); |
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406 } |
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407 |
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408 static address continuation_for_safefetch_fault(address pc) { |
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409 assert(_safefetch32_continuation_pc != NULL && |
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410 _safefetchN_continuation_pc != NULL, |
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411 "not initialized"); |
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412 |
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413 if (pc == _safefetch32_fault_pc) return _safefetch32_continuation_pc; |
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414 if (pc == _safefetchN_fault_pc) return _safefetchN_continuation_pc; |
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415 |
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416 ShouldNotReachHere(); |
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417 return NULL; |
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418 } |
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419 |
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420 // |
385 // Default versions of the above arraycopy functions for platforms which do |
421 // Default versions of the above arraycopy functions for platforms which do |
386 // not have specialized versions |
422 // not have specialized versions |
387 // |
423 // |
388 static void jbyte_copy (jbyte* src, jbyte* dest, size_t count); |
424 static void jbyte_copy (jbyte* src, jbyte* dest, size_t count); |
389 static void jshort_copy (jshort* src, jshort* dest, size_t count); |
425 static void jshort_copy (jshort* src, jshort* dest, size_t count); |
398 static void arrayof_jlong_copy (HeapWord* src, HeapWord* dest, size_t count); |
434 static void arrayof_jlong_copy (HeapWord* src, HeapWord* dest, size_t count); |
399 static void arrayof_oop_copy (HeapWord* src, HeapWord* dest, size_t count); |
435 static void arrayof_oop_copy (HeapWord* src, HeapWord* dest, size_t count); |
400 static void arrayof_oop_copy_uninit(HeapWord* src, HeapWord* dest, size_t count); |
436 static void arrayof_oop_copy_uninit(HeapWord* src, HeapWord* dest, size_t count); |
401 }; |
437 }; |
402 |
438 |
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439 // Safefetch allows to load a value from a location that's not known |
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440 // to be valid. If the load causes a fault, the error value is returned. |
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441 inline int SafeFetch32(int* adr, int errValue) { |
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442 assert(StubRoutines::SafeFetch32_stub(), "stub not yet generated"); |
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443 return StubRoutines::SafeFetch32_stub()(adr, errValue); |
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444 } |
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445 inline intptr_t SafeFetchN(intptr_t* adr, intptr_t errValue) { |
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446 assert(StubRoutines::SafeFetchN_stub(), "stub not yet generated"); |
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447 return StubRoutines::SafeFetchN_stub()(adr, errValue); |
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448 } |
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449 |
403 #endif // SHARE_VM_RUNTIME_STUBROUTINES_HPP |
450 #endif // SHARE_VM_RUNTIME_STUBROUTINES_HPP |