pcDesc.cpp revision 1472:c18cbe5936b8
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 "incls/_precompiled.incl" 26# include "incls/_pcDesc.cpp.incl" 27 28PcDesc::PcDesc(int pc_offset, int scope_decode_offset, int obj_decode_offset) { 29 assert(sizeof(PcDescFlags) <= 4, "occupies more than a word"); 30 _pc_offset = pc_offset; 31 _scope_decode_offset = scope_decode_offset; 32 _obj_decode_offset = obj_decode_offset; 33 _flags.word = 0; 34} 35 36address PcDesc::real_pc(const nmethod* code) const { 37 return code->instructions_begin() + pc_offset(); 38} 39 40void PcDesc::print(nmethod* code) { 41#ifndef PRODUCT 42 ResourceMark rm; 43 tty->print_cr("PcDesc(pc=0x%lx offset=%x):", real_pc(code), pc_offset()); 44 45 if (scope_decode_offset() == DebugInformationRecorder::serialized_null) { 46 return; 47 } 48 49 for (ScopeDesc* sd = code->scope_desc_at(real_pc(code)); 50 sd != NULL; 51 sd = sd->sender()) { 52 tty->print(" "); 53 sd->method()->print_short_name(tty); 54 tty->print(" @%d", sd->bci()); 55 if (sd->should_reexecute()) 56 tty->print(" reexecute=true"); 57 tty->cr(); 58 } 59#endif 60} 61 62bool PcDesc::verify(nmethod* code) { 63 //Unimplemented(); 64 return true; 65} 66