Mercurial > jdk8-mips64-public > hotspot / file comparison
comparison: src/cpu/sparc/vm/stubGenerator_sparc.cpp
src/cpu/sparc/vm/stubGenerator_sparc.cpp
- changeset 5400
- 980532a806a5
- parent 5283
- 46c544b8fbfc
- child 5694
- 7944aba7ba41
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replaced
| 5361:ea4d24c1e0c6 | 5400:980532a806a5 |
|---|---|
| 408 __ delayed()->st_ptr(G0, exception_addr); | 408 __ delayed()->st_ptr(G0, exception_addr); |
| 409 | 409 |
| 410 return start; | 410 return start; |
| 411 } | 411 } |
| 412 | 412 |
| 413 // Safefetch stubs. | |
| 414 void generate_safefetch(const char* name, int size, address* entry, | |
| 415 address* fault_pc, address* continuation_pc) { | |
| 416 // safefetch signatures: | |
| 417 // int SafeFetch32(int* adr, int errValue); | |
| 418 // intptr_t SafeFetchN (intptr_t* adr, intptr_t errValue); | |
| 419 // | |
| 420 // arguments: | |
| 421 // o0 = adr | |
| 422 // o1 = errValue | |
| 423 // | |
| 424 // result: | |
| 425 // o0 = *adr or errValue | |
| 426 | |
| 427 StubCodeMark mark(this, "StubRoutines", name); | |
| 428 | |
| 429 // Entry point, pc or function descriptor. | |
| 430 __ align(CodeEntryAlignment); | |
| 431 *entry = __ pc(); | |
| 432 | |
| 433 __ mov(O0, G1); // g1 = o0 | |
| 434 __ mov(O1, O0); // o0 = o1 | |
| 435 // Load *adr into c_rarg1, may fault. | |
| 436 *fault_pc = __ pc(); | |
| 437 switch (size) { | |
| 438 case 4: | |
| 439 // int32_t | |
| 440 __ ldsw(G1, 0, O0); // o0 = [g1] | |
| 441 break; | |
| 442 case 8: | |
| 443 // int64_t | |
| 444 __ ldx(G1, 0, O0); // o0 = [g1] | |
| 445 break; | |
| 446 default: | |
| 447 ShouldNotReachHere(); | |
| 448 } | |
| 449 | |
| 450 // return errValue or *adr | |
| 451 *continuation_pc = __ pc(); | |
| 452 // By convention with the trap handler we ensure there is a non-CTI | |
| 453 // instruction in the trap shadow. | |
| 454 __ nop(); | |
| 455 __ retl(); | |
| 456 __ delayed()->nop(); | |
| 457 } | |
| 413 | 458 |
| 414 //------------------------------------------------------------------------------------------------------------------------ | 459 //------------------------------------------------------------------------------------------------------------------------ |
| 415 // Continuation point for throwing of implicit exceptions that are not handled in | 460 // Continuation point for throwing of implicit exceptions that are not handled in |
| 416 // the current activation. Fabricates an exception oop and initiates normal | 461 // the current activation. Fabricates an exception oop and initiates normal |
| 417 // exception dispatching in this frame. Only callee-saved registers are preserved | 462 // exception dispatching in this frame. Only callee-saved registers are preserved |
| 3313 // arraycopy stubs used by compilers | 3358 // arraycopy stubs used by compilers |
| 3314 generate_arraycopy_stubs(); | 3359 generate_arraycopy_stubs(); |
| 3315 | 3360 |
| 3316 // Don't initialize the platform math functions since sparc | 3361 // Don't initialize the platform math functions since sparc |
| 3317 // doesn't have intrinsics for these operations. | 3362 // doesn't have intrinsics for these operations. |
| 3363 | |
| 3364 // Safefetch stubs. | |
| 3365 generate_safefetch("SafeFetch32", sizeof(int), &StubRoutines::_safefetch32_entry, | |
| 3366 &StubRoutines::_safefetch32_fault_pc, | |
| 3367 &StubRoutines::_safefetch32_continuation_pc); | |
| 3368 generate_safefetch("SafeFetchN", sizeof(intptr_t), &StubRoutines::_safefetchN_entry, | |
| 3369 &StubRoutines::_safefetchN_fault_pc, | |
| 3370 &StubRoutines::_safefetchN_continuation_pc); | |
| 3318 } | 3371 } |
| 3319 | 3372 |
| 3320 | 3373 |
| 3321 public: | 3374 public: |
| 3322 StubGenerator(CodeBuffer* code, bool all) : StubCodeGenerator(code) { | 3375 StubGenerator(CodeBuffer* code, bool all) : StubCodeGenerator(code) { |
