Mercurial > hg > truffle
annotate src/share/vm/code/pcDesc.cpp @ 2142:8012aa3ccede
4926272: methodOopDesc::method_from_bcp is unsafe
Reviewed-by: coleenp, jrose, kvn, dcubed
| author | never |
|---|---|
| date | Thu, 13 Jan 2011 22:15:41 -0800 |
| parents | f95d63e2154a |
| children | 06f017f7daa7 07c2e7ffd1fc |
| rev | line source |
|---|---|
| 0 | 1 /* |
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2 * Copyright (c) 1997, 2010, Oracle and/or its affiliates. All rights reserved. |
| 0 | 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 * | |
|
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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. |
| 0 | 22 * |
| 23 */ | |
| 24 | |
| 1972 | 25 #include "precompiled.hpp" |
| 26 #include "code/debugInfoRec.hpp" | |
| 27 #include "code/nmethod.hpp" | |
| 28 #include "code/pcDesc.hpp" | |
| 29 #include "code/scopeDesc.hpp" | |
| 30 #include "memory/resourceArea.hpp" | |
| 0 | 31 |
| 32 PcDesc::PcDesc(int pc_offset, int scope_decode_offset, int obj_decode_offset) { | |
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33 assert(sizeof(PcDescFlags) <= 4, "occupies more than a word"); |
| 0 | 34 _pc_offset = pc_offset; |
| 35 _scope_decode_offset = scope_decode_offset; | |
| 36 _obj_decode_offset = obj_decode_offset; | |
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37 _flags.word = 0; |
| 0 | 38 } |
| 39 | |
| 40 address PcDesc::real_pc(const nmethod* code) const { | |
| 1748 | 41 return code->code_begin() + pc_offset(); |
| 0 | 42 } |
| 43 | |
| 44 void PcDesc::print(nmethod* code) { | |
| 45 #ifndef PRODUCT | |
| 46 ResourceMark rm; | |
| 47 tty->print_cr("PcDesc(pc=0x%lx offset=%x):", real_pc(code), pc_offset()); | |
| 48 | |
| 49 if (scope_decode_offset() == DebugInformationRecorder::serialized_null) { | |
| 50 return; | |
| 51 } | |
| 52 | |
| 53 for (ScopeDesc* sd = code->scope_desc_at(real_pc(code)); | |
| 54 sd != NULL; | |
| 55 sd = sd->sender()) { | |
| 56 tty->print(" "); | |
| 57 sd->method()->print_short_name(tty); | |
| 58 tty->print(" @%d", sd->bci()); | |
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59 if (sd->should_reexecute()) |
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60 tty->print(" reexecute=true"); |
| 0 | 61 tty->cr(); |
| 62 } | |
| 63 #endif | |
| 64 } | |
| 65 | |
| 66 bool PcDesc::verify(nmethod* code) { | |
| 67 //Unimplemented(); | |
| 68 return true; | |
| 69 } |