Mercurial > hg > truffle
annotate src/share/vm/code/pcDesc.cpp @ 1252:f516d5d7a019
6910605: C2: NullPointerException/ClassCaseException is thrown when C2 with DeoptimizeALot is used
Summary: Set the reexecute bit for runtime calls _new_array_Java when they used for _multianewarray bytecode.
Reviewed-by: never
| author | kvn |
|---|---|
| date | Mon, 08 Feb 2010 12:20:09 -0800 |
| parents | 72088be4b386 |
| children | c18cbe5936b8 |
| rev | line source |
|---|---|
| 0 | 1 /* |
|
1252
f516d5d7a019
6910605: C2: NullPointerException/ClassCaseException is thrown when C2 with DeoptimizeALot is used
kvn
parents:
931
diff
changeset
|
2 * Copyright 1997-2010 Sun Microsystems, Inc. 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 * | |
| 19 * Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa Clara, | |
| 20 * CA 95054 USA or visit www.sun.com if you need additional information or | |
| 21 * have any questions. | |
| 22 * | |
| 23 */ | |
| 24 | |
| 25 # include "incls/_precompiled.incl" | |
| 26 # include "incls/_pcDesc.cpp.incl" | |
| 27 | |
| 28 PcDesc::PcDesc(int pc_offset, int scope_decode_offset, int obj_decode_offset) { | |
|
931
72088be4b386
6873116: Modify reexecute implementation to use pcDesc to record the reexecute bit
cfang
parents:
0
diff
changeset
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29 assert(sizeof(PcDescFlags) <= 4, "occupies more than a word"); |
| 0 | 30 _pc_offset = pc_offset; |
| 31 _scope_decode_offset = scope_decode_offset; | |
| 32 _obj_decode_offset = obj_decode_offset; | |
|
931
72088be4b386
6873116: Modify reexecute implementation to use pcDesc to record the reexecute bit
cfang
parents:
0
diff
changeset
|
33 _flags.word = 0; |
| 0 | 34 } |
| 35 | |
| 36 address PcDesc::real_pc(const nmethod* code) const { | |
| 37 return code->instructions_begin() + pc_offset(); | |
| 38 } | |
| 39 | |
| 40 void 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()); | |
|
1252
f516d5d7a019
6910605: C2: NullPointerException/ClassCaseException is thrown when C2 with DeoptimizeALot is used
kvn
parents:
931
diff
changeset
|
55 if (sd->should_reexecute()) |
|
f516d5d7a019
6910605: C2: NullPointerException/ClassCaseException is thrown when C2 with DeoptimizeALot is used
kvn
parents:
931
diff
changeset
|
56 tty->print(" reexecute=true"); |
| 0 | 57 tty->cr(); |
| 58 } | |
| 59 #endif | |
| 60 } | |
| 61 | |
| 62 bool PcDesc::verify(nmethod* code) { | |
| 63 //Unimplemented(); | |
| 64 return true; | |
| 65 } |