Mercurial > hg > truffle
annotate src/share/vm/code/pcDesc.cpp @ 6972:bd7a7ce2e264
6830717: replay of compilations would help with debugging
Summary: When java process crashed in compiler thread, repeat the compilation process will help finding root cause. This is done with using SA dump application class data and replay data from core dump, then use debug version of jvm to recompile the problematic java method.
Reviewed-by: kvn, twisti, sspitsyn
Contributed-by: yumin.qi@oracle.com
| author | minqi |
|---|---|
| date | Mon, 12 Nov 2012 14:03:53 -0800 |
| parents | 7588156f5cf9 |
| children | 04b9a2566eec 78bbf4d43a14 |
| 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) { | |
| 33 _pc_offset = pc_offset; | |
| 34 _scope_decode_offset = scope_decode_offset; | |
| 35 _obj_decode_offset = obj_decode_offset; | |
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7051798: SA-JDI: NPE in Frame.addressOfStackSlot(Frame.java:244)
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36 _flags = 0; |
| 0 | 37 } |
| 38 | |
| 39 address PcDesc::real_pc(const nmethod* code) const { | |
| 1748 | 40 return code->code_begin() + pc_offset(); |
| 0 | 41 } |
| 42 | |
| 43 void PcDesc::print(nmethod* code) { | |
| 44 #ifndef PRODUCT | |
| 45 ResourceMark rm; | |
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7051798: SA-JDI: NPE in Frame.addressOfStackSlot(Frame.java:244)
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46 tty->print_cr("PcDesc(pc=0x%lx offset=%x bits=%x):", real_pc(code), pc_offset(), _flags); |
| 0 | 47 |
| 48 if (scope_decode_offset() == DebugInformationRecorder::serialized_null) { | |
| 49 return; | |
| 50 } | |
| 51 | |
| 52 for (ScopeDesc* sd = code->scope_desc_at(real_pc(code)); | |
| 53 sd != NULL; | |
| 54 sd = sd->sender()) { | |
| 55 tty->print(" "); | |
| 56 sd->method()->print_short_name(tty); | |
| 57 tty->print(" @%d", sd->bci()); | |
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6910605: C2: NullPointerException/ClassCaseException is thrown when C2 with DeoptimizeALot is used
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58 if (sd->should_reexecute()) |
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6910605: C2: NullPointerException/ClassCaseException is thrown when C2 with DeoptimizeALot is used
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59 tty->print(" reexecute=true"); |
| 0 | 60 tty->cr(); |
| 61 } | |
| 62 #endif | |
| 63 } | |
| 64 | |
| 65 bool PcDesc::verify(nmethod* code) { | |
| 66 //Unimplemented(); | |
| 67 return true; | |
| 68 } |