Mercurial > jdk8-mips64-public > hotspot / file revision
src/share/vm/ci/ciSymbol.cpp@b4776199210f
src/share/vm/ci/ciSymbol.cpp
Mon, 26 Apr 2010 23:59:45 -0700
- author
- never
- date
- Mon, 26 Apr 2010 23:59:45 -0700
- changeset 1832
- b4776199210f
- parent 1573
- dd57230ba8fe
- child 1862
- cd5dbf694d45
- permissions
- -rw-r--r--
6943485: JVMTI always on capabilities change code generation too much
Reviewed-by: twisti, dcubed
1 /*
2 * Copyright 1999-2009 Sun Microsystems, Inc. All Rights Reserved.
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 */
25 #include "incls/_precompiled.incl"
26 #include "incls/_ciSymbol.cpp.incl"
28 // ------------------------------------------------------------------
29 // ciSymbol::ciSymbol
30 //
31 // Preallocated handle variant. Used with handles from vmSymboHandles.
32 ciSymbol::ciSymbol(symbolHandle h_s) : ciObject(h_s) {
33 }
35 // ciSymbol
36 //
37 // This class represents a symbolOop in the HotSpot virtual
38 // machine.
40 // ------------------------------------------------------------------
41 // ciSymbol::as_utf8
42 //
43 // The text of the symbol as a null-terminated C string.
44 const char* ciSymbol::as_utf8() {
45 VM_QUICK_ENTRY_MARK;
46 symbolOop s = get_symbolOop();
47 return s->as_utf8();
48 }
50 // ------------------------------------------------------------------
51 // ciSymbol::base
52 jbyte* ciSymbol::base() {
53 GUARDED_VM_ENTRY(return get_symbolOop()->base();)
54 }
56 // ------------------------------------------------------------------
57 // ciSymbol::byte_at
58 int ciSymbol::byte_at(int i) {
59 GUARDED_VM_ENTRY(return get_symbolOop()->byte_at(i);)
60 }
62 // ------------------------------------------------------------------
63 // ciSymbol::starts_with
64 //
65 // Tests if the symbol starts with the given prefix.
66 bool ciSymbol::starts_with(const char* prefix, int len) const {
67 GUARDED_VM_ENTRY(return get_symbolOop()->starts_with(prefix, len);)
68 }
70 // ------------------------------------------------------------------
71 // ciSymbol::index_of
72 //
73 // Determines where the symbol contains the given substring.
74 int ciSymbol::index_of_at(int i, const char* str, int len) const {
75 GUARDED_VM_ENTRY(return get_symbolOop()->index_of_at(i, str, len);)
76 }
78 // ------------------------------------------------------------------
79 // ciSymbol::utf8_length
80 int ciSymbol::utf8_length() {
81 GUARDED_VM_ENTRY(return get_symbolOop()->utf8_length();)
82 }
84 // ------------------------------------------------------------------
85 // ciSymbol::print_impl
86 //
87 // Implementation of the print method
88 void ciSymbol::print_impl(outputStream* st) {
89 st->print(" value=");
90 print_symbol_on(st);
91 }
93 // ------------------------------------------------------------------
94 // ciSymbol::print_symbol_on
95 //
96 // Print the value of this symbol on an outputStream
97 void ciSymbol::print_symbol_on(outputStream *st) {
98 GUARDED_VM_ENTRY(get_symbolOop()->print_symbol_on(st);)
99 }
101 // ------------------------------------------------------------------
102 // ciSymbol::make_impl
103 //
104 // Make a ciSymbol from a C string (implementation).
105 ciSymbol* ciSymbol::make_impl(const char* s) {
106 EXCEPTION_CONTEXT;
107 // For some reason, oopFactory::new_symbol doesn't declare its
108 // char* argument as const.
109 symbolOop sym = oopFactory::new_symbol((char*)s, (int)strlen(s), THREAD);
110 if (HAS_PENDING_EXCEPTION) {
111 CLEAR_PENDING_EXCEPTION;
112 CURRENT_THREAD_ENV->record_out_of_memory_failure();
113 return ciEnv::_unloaded_cisymbol;
114 }
115 return CURRENT_THREAD_ENV->get_object(sym)->as_symbol();
116 }
118 // ------------------------------------------------------------------
119 // ciSymbol::make
120 //
121 // Make a ciSymbol from a C string.
122 ciSymbol* ciSymbol::make(const char* s) {
123 GUARDED_VM_ENTRY(return make_impl(s);)
124 }
