Mercurial > hg > graal-compiler
annotate src/share/vm/runtime/fieldDescriptor.cpp @ 917:1760a1cbed36
6862945: 4/3 conversion of jmethodID to methodOop in JVMTI is too expensive
Summary: Refactor JNIHandles::checked_resolve_jmethod_id() into fast and paranoid parts.
Reviewed-by: never, alanb
author | dcubed |
---|---|
date | Tue, 11 Aug 2009 11:57:51 -0600 |
parents | c89f86385056 |
children | c18cbe5936b8 |
rev | line source |
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0 | 1 /* |
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2 * Copyright 1997-2009 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/_fieldDescriptor.cpp.incl" | |
27 | |
28 | |
29 oop fieldDescriptor::loader() const { | |
30 return instanceKlass::cast(_cp->pool_holder())->class_loader(); | |
31 } | |
32 | |
33 typeArrayOop fieldDescriptor::annotations() const { | |
34 instanceKlass* ik = instanceKlass::cast(field_holder()); | |
35 objArrayOop md = ik->fields_annotations(); | |
36 if (md == NULL) | |
37 return NULL; | |
38 assert((index() % instanceKlass::next_offset) == 0, ""); | |
39 return typeArrayOop(md->obj_at(index() / instanceKlass::next_offset)); | |
40 } | |
41 | |
42 constantTag fieldDescriptor::initial_value_tag() const { | |
43 return constants()->tag_at(_initial_value_index); | |
44 } | |
45 | |
46 jint fieldDescriptor::int_initial_value() const { | |
47 return constants()->int_at(_initial_value_index); | |
48 } | |
49 | |
50 jlong fieldDescriptor::long_initial_value() const { | |
51 return constants()->long_at(_initial_value_index); | |
52 } | |
53 | |
54 jfloat fieldDescriptor::float_initial_value() const { | |
55 return constants()->float_at(_initial_value_index); | |
56 } | |
57 | |
58 jdouble fieldDescriptor::double_initial_value() const { | |
59 return constants()->double_at(_initial_value_index); | |
60 } | |
61 | |
62 oop fieldDescriptor::string_initial_value(TRAPS) const { | |
63 return constants()->string_at(_initial_value_index, CHECK_0); | |
64 } | |
65 | |
66 void fieldDescriptor::initialize(klassOop k, int index) { | |
67 instanceKlass* ik = instanceKlass::cast(k); | |
68 _cp = ik->constants(); | |
69 typeArrayOop fields = ik->fields(); | |
70 | |
71 assert(fields->length() % instanceKlass::next_offset == 0, "Illegal size of field array"); | |
72 assert(fields->length() >= index + instanceKlass::next_offset, "Illegal size of field array"); | |
73 | |
74 _access_flags.set_field_flags(fields->ushort_at(index + instanceKlass::access_flags_offset)); | |
75 _name_index = fields->ushort_at(index + instanceKlass::name_index_offset); | |
76 _signature_index = fields->ushort_at(index + instanceKlass::signature_index_offset); | |
77 _initial_value_index = fields->ushort_at(index + instanceKlass::initval_index_offset); | |
78 guarantee(_name_index != 0 && _signature_index != 0, "bad constant pool index for fieldDescriptor"); | |
79 _offset = ik->offset_from_fields( index ); | |
80 _generic_signature_index = fields->ushort_at(index + instanceKlass::generic_signature_offset); | |
81 _index = index; | |
82 } | |
83 | |
84 #ifndef PRODUCT | |
85 | |
86 void fieldDescriptor::print_on(outputStream* st) const { | |
87 _access_flags.print_on(st); | |
88 constants()->symbol_at(_name_index)->print_value_on(st); | |
89 st->print(" "); | |
90 constants()->symbol_at(_signature_index)->print_value_on(st); | |
91 st->print(" @%d ", offset()); | |
92 if (WizardMode && has_initial_value()) { | |
93 st->print("(initval "); | |
94 constantTag t = initial_value_tag(); | |
95 if (t.is_int()) { | |
96 st->print("int %d)", int_initial_value()); | |
97 } else if (t.is_long()){ | |
98 st->print_jlong(long_initial_value()); | |
99 } else if (t.is_float()){ | |
100 st->print("float %f)", float_initial_value()); | |
101 } else if (t.is_double()){ | |
102 st->print("double %lf)", double_initial_value()); | |
103 } | |
104 } | |
105 } | |
106 | |
107 void fieldDescriptor::print_on_for(outputStream* st, oop obj) { | |
108 print_on(st); | |
109 BasicType ft = field_type(); | |
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110 jint as_int = 0; |
0 | 111 switch (ft) { |
112 case T_BYTE: | |
113 as_int = (jint)obj->byte_field(offset()); | |
114 st->print(" %d", obj->byte_field(offset())); | |
115 break; | |
116 case T_CHAR: | |
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117 as_int = (jint)obj->char_field(offset()); |
0 | 118 { |
119 jchar c = obj->char_field(offset()); | |
120 as_int = c; | |
121 st->print(" %c %d", isprint(c) ? c : ' ', c); | |
122 } | |
123 break; | |
124 case T_DOUBLE: | |
125 st->print(" %lf", obj->double_field(offset())); | |
126 break; | |
127 case T_FLOAT: | |
128 as_int = obj->int_field(offset()); | |
129 st->print(" %f", obj->float_field(offset())); | |
130 break; | |
131 case T_INT: | |
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6814659: separable cleanups and subroutines for 6655638
jrose
parents:
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diff
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132 as_int = obj->int_field(offset()); |
0 | 133 st->print(" %d", obj->int_field(offset())); |
134 break; | |
135 case T_LONG: | |
136 st->print(" "); | |
137 st->print_jlong(obj->long_field(offset())); | |
138 break; | |
139 case T_SHORT: | |
140 as_int = obj->short_field(offset()); | |
141 st->print(" %d", obj->short_field(offset())); | |
142 break; | |
143 case T_BOOLEAN: | |
144 as_int = obj->bool_field(offset()); | |
145 st->print(" %s", obj->bool_field(offset()) ? "true" : "false"); | |
146 break; | |
147 case T_ARRAY: | |
148 st->print(" "); | |
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6814659: separable cleanups and subroutines for 6655638
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149 NOT_LP64(as_int = obj->int_field(offset())); |
0 | 150 obj->obj_field(offset())->print_value_on(st); |
151 break; | |
152 case T_OBJECT: | |
153 st->print(" "); | |
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c89f86385056
6814659: separable cleanups and subroutines for 6655638
jrose
parents:
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diff
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154 NOT_LP64(as_int = obj->int_field(offset())); |
0 | 155 obj->obj_field(offset())->print_value_on(st); |
156 break; | |
157 default: | |
158 ShouldNotReachHere(); | |
159 break; | |
160 } | |
161 // Print a hint as to the underlying integer representation. This can be wrong for | |
162 // pointers on an LP64 machine | |
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c89f86385056
6814659: separable cleanups and subroutines for 6655638
jrose
parents:
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diff
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163 if (ft == T_LONG || ft == T_DOUBLE LP64_ONLY(|| !is_java_primitive(ft)) ) { |
0 | 164 st->print(" (%x %x)", obj->int_field(offset()), obj->int_field(offset()+sizeof(jint))); |
665
c89f86385056
6814659: separable cleanups and subroutines for 6655638
jrose
parents:
0
diff
changeset
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165 } else if (as_int < 0 || as_int > 9) { |
0 | 166 st->print(" (%x)", as_int); |
167 } | |
168 } | |
169 | |
170 #endif /* PRODUCT */ |