340 }
341 set(os::get_memory_serialize_page(), tmp1);
342 st(G0, tmp1, tmp2);
343 }
344
345
346
347 void MacroAssembler::enter() {
348 Unimplemented();
349 }
350
351 void MacroAssembler::leave() {
352 Unimplemented();
353 }
354
355 // Calls to C land
356
357 #ifdef ASSERT
358 // a hook for debugging
359 static Thread* reinitialize_thread() {
360 return ThreadLocalStorage::thread();
361 }
362 #else
363 #define reinitialize_thread ThreadLocalStorage::thread
364 #endif
365
366 #ifdef ASSERT
367 address last_get_thread = NULL;
368 #endif
369
370 // call this when G2_thread is not known to be valid
371 void MacroAssembler::get_thread() {
372 save_frame(0); // to avoid clobbering O0
373 mov(G1, L0); // avoid clobbering G1
374 mov(G5_method, L1); // avoid clobbering G5
375 mov(G3, L2); // avoid clobbering G3 also
376 mov(G4, L5); // avoid clobbering G4
377 #ifdef ASSERT
378 AddressLiteral last_get_thread_addrlit(&last_get_thread);
379 set(last_get_thread_addrlit, L3);
380 rdpc(L4);
381 inc(L4, 3 * BytesPerInstWord); // skip rdpc + inc + st_ptr to point L4 at call st_ptr(L4, L3, 0);
382 #endif
383 call(CAST_FROM_FN_PTR(address, reinitialize_thread), relocInfo::runtime_call_type);
384 delayed()->nop();
385 mov(L0, G1);
386 mov(L1, G5_method);
387 mov(L2, G3);
388 mov(L5, G4);
389 restore(O0, 0, G2_thread);
390 }
391
392 static Thread* verify_thread_subroutine(Thread* gthread_value) {
393 Thread* correct_value = ThreadLocalStorage::thread();
394 guarantee(gthread_value == correct_value, "G2_thread value must be the thread");
395 return correct_value;
396 }
397
398 void MacroAssembler::verify_thread() {
399 if (VerifyThread) {
400 // NOTE: this chops off the heads of the 64-bit O registers.
401 #ifdef CC_INTERP
402 save_frame(0);
403 #else
404 // make sure G2_thread contains the right value
405 save_frame_and_mov(0, Lmethod, Lmethod); // to avoid clobbering O0 (and propagate Lmethod for -Xprof)
406 mov(G1, L1); // avoid clobbering G1
407 // G2 saved below
408 mov(G3, L3); // avoid clobbering G3
409 mov(G4, L4); // avoid clobbering G4
410 mov(G5_method, L5); // avoid clobbering G5_method
411 #endif /* CC_INTERP */
412 #if defined(COMPILER2) && !defined(_LP64)
413 // Save & restore possible 64-bit Long arguments in G-regs
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340 }
341 set(os::get_memory_serialize_page(), tmp1);
342 st(G0, tmp1, tmp2);
343 }
344
345
346
347 void MacroAssembler::enter() {
348 Unimplemented();
349 }
350
351 void MacroAssembler::leave() {
352 Unimplemented();
353 }
354
355 // Calls to C land
356
357 #ifdef ASSERT
358 // a hook for debugging
359 static Thread* reinitialize_thread() {
360 return Thread::current();
361 }
362 #else
363 #define reinitialize_thread Thread::current
364 #endif
365
366 #ifdef ASSERT
367 address last_get_thread = NULL;
368 #endif
369
370 // call this when G2_thread is not known to be valid
371 void MacroAssembler::get_thread() {
372 save_frame(0); // to avoid clobbering O0
373 mov(G1, L0); // avoid clobbering G1
374 mov(G5_method, L1); // avoid clobbering G5
375 mov(G3, L2); // avoid clobbering G3 also
376 mov(G4, L5); // avoid clobbering G4
377 #ifdef ASSERT
378 AddressLiteral last_get_thread_addrlit(&last_get_thread);
379 set(last_get_thread_addrlit, L3);
380 rdpc(L4);
381 inc(L4, 3 * BytesPerInstWord); // skip rdpc + inc + st_ptr to point L4 at call st_ptr(L4, L3, 0);
382 #endif
383 call(CAST_FROM_FN_PTR(address, reinitialize_thread), relocInfo::runtime_call_type);
384 delayed()->nop();
385 mov(L0, G1);
386 mov(L1, G5_method);
387 mov(L2, G3);
388 mov(L5, G4);
389 restore(O0, 0, G2_thread);
390 }
391
392 static Thread* verify_thread_subroutine(Thread* gthread_value) {
393 Thread* correct_value = Thread::current();
394 guarantee(gthread_value == correct_value, "G2_thread value must be the thread");
395 return correct_value;
396 }
397
398 void MacroAssembler::verify_thread() {
399 if (VerifyThread) {
400 // NOTE: this chops off the heads of the 64-bit O registers.
401 #ifdef CC_INTERP
402 save_frame(0);
403 #else
404 // make sure G2_thread contains the right value
405 save_frame_and_mov(0, Lmethod, Lmethod); // to avoid clobbering O0 (and propagate Lmethod for -Xprof)
406 mov(G1, L1); // avoid clobbering G1
407 // G2 saved below
408 mov(G3, L3); // avoid clobbering G3
409 mov(G4, L4); // avoid clobbering G4
410 mov(G5_method, L5); // avoid clobbering G5_method
411 #endif /* CC_INTERP */
412 #if defined(COMPILER2) && !defined(_LP64)
413 // Save & restore possible 64-bit Long arguments in G-regs
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