Mercurial > hg > truffle
annotate src/share/vm/oops/oop.cpp @ 21183:565d7dbae77c
LIRGenerator: replace doBlockStart/doBlockEnd with an AutoCloseable.
author | Josef Eisl <josef.eisl@jku.at> |
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date | Mon, 20 Apr 2015 11:16:15 +0200 |
parents | 52b4284cb496 |
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0 | 1 /* |
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2 * Copyright (c) 1997, 2014, 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" |
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26 #include "classfile/altHashing.hpp" |
1972 | 27 #include "classfile/javaClasses.hpp" |
28 #include "oops/oop.inline.hpp" | |
29 #include "runtime/handles.inline.hpp" | |
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30 #include "runtime/thread.inline.hpp" |
1972 | 31 #include "utilities/copy.hpp" |
0 | 32 |
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33 PRAGMA_FORMAT_MUTE_WARNINGS_FOR_GCC |
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34 |
0 | 35 bool always_do_update_barrier = false; |
36 | |
37 BarrierSet* oopDesc::_bs = NULL; | |
38 | |
39 void oopDesc::print_on(outputStream* st) const { | |
40 if (this == NULL) { | |
41 st->print_cr("NULL"); | |
42 } else { | |
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43 klass()->oop_print_on(oop(this), st); |
0 | 44 } |
45 } | |
46 | |
47 void oopDesc::print_address_on(outputStream* st) const { | |
48 if (PrintOopAddress) { | |
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49 st->print("{"INTPTR_FORMAT"}", this); |
0 | 50 } |
51 } | |
52 | |
53 void oopDesc::print() { print_on(tty); } | |
54 | |
55 void oopDesc::print_address() { print_address_on(tty); } | |
56 | |
57 char* oopDesc::print_string() { | |
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58 stringStream st; |
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59 print_on(&st); |
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60 return st.as_string(); |
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61 } |
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62 |
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63 void oopDesc::print_value() { |
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64 print_value_on(tty); |
0 | 65 } |
66 | |
67 char* oopDesc::print_value_string() { | |
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68 char buf[100]; |
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69 stringStream st(buf, sizeof(buf)); |
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70 print_value_on(&st); |
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71 return st.as_string(); |
0 | 72 } |
73 | |
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74 void oopDesc::print_value_on(outputStream* st) const { |
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75 oop obj = oop(this); |
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76 if (this == NULL) { |
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77 st->print("NULL"); |
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78 } else if (java_lang_String::is_instance(obj)) { |
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79 java_lang_String::print(obj, st); |
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80 if (PrintOopAddress) print_address_on(st); |
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81 } else { |
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82 klass()->oop_print_value_on(obj, st); |
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83 } |
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84 } |
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85 |
0 | 86 |
87 void oopDesc::verify_on(outputStream* st) { | |
88 if (this != NULL) { | |
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89 klass()->oop_verify_on(this, st); |
0 | 90 } |
91 } | |
92 | |
93 | |
94 void oopDesc::verify() { | |
95 verify_on(tty); | |
96 } | |
97 | |
98 intptr_t oopDesc::slow_identity_hash() { | |
99 // slow case; we have to acquire the micro lock in order to locate the header | |
100 ResetNoHandleMark rnm; // Might be called from LEAF/QUICK ENTRY | |
101 HandleMark hm; | |
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102 Handle object(this); |
0 | 103 return ObjectSynchronizer::identity_hash_value_for(object); |
104 } | |
105 | |
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106 // When String table needs to rehash |
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107 unsigned int oopDesc::new_hash(juint seed) { |
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108 EXCEPTION_MARK; |
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109 ResourceMark rm; |
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110 int length; |
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111 jchar* chars = java_lang_String::as_unicode_string(this, length, THREAD); |
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112 if (chars != NULL) { |
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113 // Use alternate hashing algorithm on the string |
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114 return AltHashing::murmur3_32(seed, chars, length); |
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115 } else { |
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116 vm_exit_out_of_memory(length, OOM_MALLOC_ERROR, "unable to create Unicode strings for String table rehash"); |
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117 return 0; |
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118 } |
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119 } |
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120 |
0 | 121 VerifyOopClosure VerifyOopClosure::verify_oop; |
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122 |
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123 void VerifyOopClosure::do_oop(oop* p) { VerifyOopClosure::do_oop_work(p); } |
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124 void VerifyOopClosure::do_oop(narrowOop* p) { VerifyOopClosure::do_oop_work(p); } |