annotate src/share/vm/code/pcDesc.cpp @ 10408:836a62f43af9

Merge with http://hg.openjdk.java.net/hsx/hsx25/hotspot/
author Doug Simon <doug.simon@oracle.com>
date Wed, 19 Jun 2013 10:45:56 +0200
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children 52b4284cb496
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1 /*
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2 * Copyright (c) 1997, 2010, Oracle and/or its affiliates. All rights reserved.
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3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
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4 *
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5 * This code is free software; you can redistribute it and/or modify it
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6 * under the terms of the GNU General Public License version 2 only, as
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7 * published by the Free Software Foundation.
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8 *
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9 * This code is distributed in the hope that it will be useful, but WITHOUT
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10 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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11 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
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12 * version 2 for more details (a copy is included in the LICENSE file that
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13 * accompanied this code).
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14 *
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15 * You should have received a copy of the GNU General Public License version
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16 * 2 along with this work; if not, write to the Free Software Foundation,
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17 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
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18 *
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19 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
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20 * or visit www.oracle.com if you need additional information or have any
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21 * questions.
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22 *
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23 */
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24
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25 #include "precompiled.hpp"
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26 #include "code/debugInfoRec.hpp"
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27 #include "code/nmethod.hpp"
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28 #include "code/pcDesc.hpp"
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29 #include "code/scopeDesc.hpp"
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30 #include "memory/resourceArea.hpp"
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31
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32 PcDesc::PcDesc(int pc_offset, int scope_decode_offset, int obj_decode_offset) {
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33 _pc_offset = pc_offset;
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34 _scope_decode_offset = scope_decode_offset;
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35 _obj_decode_offset = obj_decode_offset;
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36 _flags = 0;
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37 }
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38
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39 address PcDesc::real_pc(const nmethod* code) const {
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40 return code->code_begin() + pc_offset();
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41 }
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42
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43 void PcDesc::print(nmethod* code) {
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44 #ifndef PRODUCT
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45 ResourceMark rm;
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46 tty->print_cr("PcDesc(pc=0x%lx offset=%x bits=%x):", real_pc(code), pc_offset(), _flags);
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48 if (scope_decode_offset() == DebugInformationRecorder::serialized_null) {
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49 return;
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50 }
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51
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52 for (ScopeDesc* sd = code->scope_desc_at(real_pc(code));
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53 sd != NULL;
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54 sd = sd->sender()) {
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55 tty->print(" ");
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56 sd->method()->print_short_name(tty);
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57 tty->print(" @%d", sd->bci());
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58 if (sd->should_reexecute())
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59 tty->print(" reexecute=true");
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60 tty->cr();
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61 }
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62 #endif
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63 }
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64
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65 bool PcDesc::verify(nmethod* code) {
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66 //Unimplemented();
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67 return true;
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68 }