1 /* 2 * Copyright (c) 1997, 2009, Oracle and/or its affiliates. All rights reserved. 3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. 4 * 5 * This code is free software; you can redistribute it and/or modify it 6 * under the terms of the GNU General Public License version 2 only, as 7 * published by the Free Software Foundation. 8 * 9 * This code is distributed in the hope that it will be useful, but WITHOUT 10 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or 11 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License 12 * version 2 for more details (a copy is included in the LICENSE file that 13 * accompanied this code). 14 * 15 * You should have received a copy of the GNU General Public License version 16 * 2 along with this work; if not, write to the Free Software Foundation, 17 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. 18 * 19 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA 20 * or visit www.oracle.com if you need additional information or have any 21 * questions. 22 * 23 */ 24 25 #include "incls/_precompiled.incl" 26 #include "incls/_icBuffer_sparc.cpp.incl" 27 28 int InlineCacheBuffer::ic_stub_code_size() { 29 #ifdef _LP64 30 if (TraceJumps) return 600 * wordSize; 31 return (NativeMovConstReg::instruction_size + // sethi;add 32 NativeJump::instruction_size + // sethi; jmp; delay slot 33 (1*BytesPerInstWord) + 1); // flush + 1 extra byte 34 #else 35 if (TraceJumps) return 300 * wordSize; 36 return (2+2+ 1) * wordSize + 1; // set/jump_to/nop + 1 byte so that code_end can be set in CodeBuffer 37 #endif 38 } 39 40 void InlineCacheBuffer::assemble_ic_buffer_code(address code_begin, oop cached_oop, address entry_point) { 41 ResourceMark rm; 42 CodeBuffer code(code_begin, ic_stub_code_size()); 43 MacroAssembler* masm = new MacroAssembler(&code); 44 // note: even though the code contains an embedded oop, we do not need reloc info 45 // because 46 // (1) the oop is old (i.e., doesn't matter for scavenges) | 1 /* 2 * Copyright (c) 1997, 2010, Oracle and/or its affiliates. All rights reserved. 3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. 4 * 5 * This code is free software; you can redistribute it and/or modify it 6 * under the terms of the GNU General Public License version 2 only, as 7 * published by the Free Software Foundation. 8 * 9 * This code is distributed in the hope that it will be useful, but WITHOUT 10 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or 11 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License 12 * version 2 for more details (a copy is included in the LICENSE file that 13 * accompanied this code). 14 * 15 * You should have received a copy of the GNU General Public License version 16 * 2 along with this work; if not, write to the Free Software Foundation, 17 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. 18 * 19 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA 20 * or visit www.oracle.com if you need additional information or have any 21 * questions. 22 * 23 */ 24 25 #include "precompiled.hpp" 26 #include "asm/assembler.hpp" 27 #include "assembler_sparc.inline.hpp" 28 #include "code/icBuffer.hpp" 29 #include "gc_interface/collectedHeap.inline.hpp" 30 #include "interpreter/bytecodes.hpp" 31 #include "memory/resourceArea.hpp" 32 #include "nativeInst_sparc.hpp" 33 #include "oops/oop.inline.hpp" 34 #include "oops/oop.inline2.hpp" 35 36 int InlineCacheBuffer::ic_stub_code_size() { 37 #ifdef _LP64 38 if (TraceJumps) return 600 * wordSize; 39 return (NativeMovConstReg::instruction_size + // sethi;add 40 NativeJump::instruction_size + // sethi; jmp; delay slot 41 (1*BytesPerInstWord) + 1); // flush + 1 extra byte 42 #else 43 if (TraceJumps) return 300 * wordSize; 44 return (2+2+ 1) * wordSize + 1; // set/jump_to/nop + 1 byte so that code_end can be set in CodeBuffer 45 #endif 46 } 47 48 void InlineCacheBuffer::assemble_ic_buffer_code(address code_begin, oop cached_oop, address entry_point) { 49 ResourceMark rm; 50 CodeBuffer code(code_begin, ic_stub_code_size()); 51 MacroAssembler* masm = new MacroAssembler(&code); 52 // note: even though the code contains an embedded oop, we do not need reloc info 53 // because 54 // (1) the oop is old (i.e., doesn't matter for scavenges) |