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comparison src/cpu/x86/vm/assembler_x86.cpp @ 606:19962e74284f

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6811384: MacroAssembler::serialize_memory may touch next page on amd64 Reviewed-by: kvn, phh, twisti
author never
date Sun, 01 Mar 2009 20:49:46 -0800
parents 52a431267315
children 56aae7be60d4
comparison
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605:98cb887364d3 606:19962e74284f
6461 andl(tmp, (os::vm_page_size() - sizeof(int))); 6461 andl(tmp, (os::vm_page_size() - sizeof(int)));
6462 6462
6463 Address index(noreg, tmp, Address::times_1); 6463 Address index(noreg, tmp, Address::times_1);
6464 ExternalAddress page(os::get_memory_serialize_page()); 6464 ExternalAddress page(os::get_memory_serialize_page());
6465 6465
6466 movptr(ArrayAddress(page, index), tmp); 6466 // Size of store must match masking code above
6467 movl(as_Address(ArrayAddress(page, index)), tmp);
6467 } 6468 }
6468 6469
6469 // Calls to C land 6470 // Calls to C land
6470 // 6471 //
6471 // When entering C land, the rbp, & rsp of the last Java frame have to be recorded 6472 // When entering C land, the rbp, & rsp of the last Java frame have to be recorded