343 }
344 set(os::get_memory_serialize_page(), tmp1);
345 st(G0, tmp1, tmp2);
346 }
347
348
349
350 void MacroAssembler::enter() {
351 Unimplemented();
352 }
353
354 void MacroAssembler::leave() {
355 Unimplemented();
356 }
357
358 // Calls to C land
359
360 #ifdef ASSERT
361 // a hook for debugging
362 static Thread* reinitialize_thread() {
363 return ThreadLocalStorage::thread();
364 }
365 #else
366 #define reinitialize_thread ThreadLocalStorage::thread
367 #endif
368
369 #ifdef ASSERT
370 address last_get_thread = NULL;
371 #endif
372
373 // call this when G2_thread is not known to be valid
374 void MacroAssembler::get_thread() {
375 save_frame(0); // to avoid clobbering O0
376 mov(G1, L0); // avoid clobbering G1
377 mov(G5_method, L1); // avoid clobbering G5
378 mov(G3, L2); // avoid clobbering G3 also
379 mov(G4, L5); // avoid clobbering G4
380 #ifdef ASSERT
381 AddressLiteral last_get_thread_addrlit(&last_get_thread);
382 set(last_get_thread_addrlit, L3);
383 rdpc(L4);
384 inc(L4, 3 * BytesPerInstWord); // skip rdpc + inc + st_ptr to point L4 at call st_ptr(L4, L3, 0);
385 #endif
386 call(CAST_FROM_FN_PTR(address, reinitialize_thread), relocInfo::runtime_call_type);
387 delayed()->nop();
388 mov(L0, G1);
389 mov(L1, G5_method);
390 mov(L2, G3);
391 mov(L5, G4);
392 restore(O0, 0, G2_thread);
393 }
394
395 static Thread* verify_thread_subroutine(Thread* gthread_value) {
396 Thread* correct_value = ThreadLocalStorage::thread();
397 guarantee(gthread_value == correct_value, "G2_thread value must be the thread");
398 return correct_value;
399 }
400
401 void MacroAssembler::verify_thread() {
402 if (VerifyThread) {
403 // NOTE: this chops off the heads of the 64-bit O registers.
404 #ifdef CC_INTERP
405 save_frame(0);
406 #else
407 // make sure G2_thread contains the right value
408 save_frame_and_mov(0, Lmethod, Lmethod); // to avoid clobbering O0 (and propagate Lmethod for -Xprof)
409 mov(G1, L1); // avoid clobbering G1
410 // G2 saved below
411 mov(G3, L3); // avoid clobbering G3
412 mov(G4, L4); // avoid clobbering G4
413 mov(G5_method, L5); // avoid clobbering G5_method
414 #endif /* CC_INTERP */
415 #if defined(COMPILER2) && !defined(_LP64)
416 // Save & restore possible 64-bit Long arguments in G-regs
|
343 }
344 set(os::get_memory_serialize_page(), tmp1);
345 st(G0, tmp1, tmp2);
346 }
347
348
349
350 void MacroAssembler::enter() {
351 Unimplemented();
352 }
353
354 void MacroAssembler::leave() {
355 Unimplemented();
356 }
357
358 // Calls to C land
359
360 #ifdef ASSERT
361 // a hook for debugging
362 static Thread* reinitialize_thread() {
363 return Thread::current();
364 }
365 #else
366 #define reinitialize_thread Thread::current
367 #endif
368
369 #ifdef ASSERT
370 address last_get_thread = NULL;
371 #endif
372
373 // call this when G2_thread is not known to be valid
374 void MacroAssembler::get_thread() {
375 save_frame(0); // to avoid clobbering O0
376 mov(G1, L0); // avoid clobbering G1
377 mov(G5_method, L1); // avoid clobbering G5
378 mov(G3, L2); // avoid clobbering G3 also
379 mov(G4, L5); // avoid clobbering G4
380 #ifdef ASSERT
381 AddressLiteral last_get_thread_addrlit(&last_get_thread);
382 set(last_get_thread_addrlit, L3);
383 rdpc(L4);
384 inc(L4, 3 * BytesPerInstWord); // skip rdpc + inc + st_ptr to point L4 at call st_ptr(L4, L3, 0);
385 #endif
386 call(CAST_FROM_FN_PTR(address, reinitialize_thread), relocInfo::runtime_call_type);
387 delayed()->nop();
388 mov(L0, G1);
389 mov(L1, G5_method);
390 mov(L2, G3);
391 mov(L5, G4);
392 restore(O0, 0, G2_thread);
393 }
394
395 static Thread* verify_thread_subroutine(Thread* gthread_value) {
396 Thread* correct_value = Thread::current();
397 guarantee(gthread_value == correct_value, "G2_thread value must be the thread");
398 return correct_value;
399 }
400
401 void MacroAssembler::verify_thread() {
402 if (VerifyThread) {
403 // NOTE: this chops off the heads of the 64-bit O registers.
404 #ifdef CC_INTERP
405 save_frame(0);
406 #else
407 // make sure G2_thread contains the right value
408 save_frame_and_mov(0, Lmethod, Lmethod); // to avoid clobbering O0 (and propagate Lmethod for -Xprof)
409 mov(G1, L1); // avoid clobbering G1
410 // G2 saved below
411 mov(G3, L3); // avoid clobbering G3
412 mov(G4, L4); // avoid clobbering G4
413 mov(G5_method, L5); // avoid clobbering G5_method
414 #endif /* CC_INTERP */
415 #if defined(COMPILER2) && !defined(_LP64)
416 // Save & restore possible 64-bit Long arguments in G-regs
|