Mercurial > hg > truffle

annotate src/share/vm/ci/ciSymbol.hpp @ 12264:b2e698d2276c

Find changesets by keywords (author, files, the commit message), revision number or hash, or revset expression.
8014013: CallInfo structure no longer accurately reports the result of a LinkResolver operation Summary: Enhance method resolution and resulting data structures, plus some refactoring. Reviewed-by: twisti, acorn, jrose
author drchase
date Fri, 13 Sep 2013 22:38:02 -0400
parents bd7a7ce2e264
children cefad50507d8
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
rev   line source
0
a61af66fc99e Initial load
duke
parents:
diff changeset
1 /*
12264
b2e698d2276c 8014013: CallInfo structure no longer accurately reports the result of a LinkResolver operation
drchase
parents: 6972
diff changeset
2 * Copyright (c) 1999, 2013, Oracle and/or its affiliates. All rights reserved.
0
a61af66fc99e Initial load
duke
parents:
diff changeset
3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
a61af66fc99e Initial load
duke
parents:
diff changeset
4 *
a61af66fc99e Initial load
duke
parents:
diff changeset
5 * This code is free software; you can redistribute it and/or modify it
a61af66fc99e Initial load
duke
parents:
diff changeset
6 * under the terms of the GNU General Public License version 2 only, as
a61af66fc99e Initial load
duke
parents:
diff changeset
7 * published by the Free Software Foundation.
a61af66fc99e Initial load
duke
parents:
diff changeset
8 *
a61af66fc99e Initial load
duke
parents:
diff changeset
9 * This code is distributed in the hope that it will be useful, but WITHOUT
a61af66fc99e Initial load
duke
parents:
diff changeset
10 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
a61af66fc99e Initial load
duke
parents:
diff changeset
11 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
a61af66fc99e Initial load
duke
parents:
diff changeset
12 * version 2 for more details (a copy is included in the LICENSE file that
a61af66fc99e Initial load
duke
parents:
diff changeset
13 * accompanied this code).
a61af66fc99e Initial load
duke
parents:
diff changeset
14 *
a61af66fc99e Initial load
duke
parents:
diff changeset
15 * You should have received a copy of the GNU General Public License version
a61af66fc99e Initial load
duke
parents:
diff changeset
16 * 2 along with this work; if not, write to the Free Software Foundation,
a61af66fc99e Initial load
duke
parents:
diff changeset
17 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
a61af66fc99e Initial load
duke
parents:
diff changeset
18 *
1552
c18cbe5936b8 6941466: Oracle rebranding changes for Hotspot repositories
trims
parents: 1507
diff changeset
19 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
c18cbe5936b8 6941466: Oracle rebranding changes for Hotspot repositories
trims
parents: 1507
diff changeset
20 * or visit www.oracle.com if you need additional information or have any
c18cbe5936b8 6941466: Oracle rebranding changes for Hotspot repositories
trims
parents: 1507
diff changeset
21 * questions.
0
a61af66fc99e Initial load
duke
parents:
diff changeset
22 *
a61af66fc99e Initial load
duke
parents:
diff changeset
23 */
a61af66fc99e Initial load
duke
parents:
diff changeset
24
1972
f95d63e2154a 6989984: Use standard include model for Hospot
stefank
parents: 1552
diff changeset
25 #ifndef SHARE_VM_CI_CISYMBOL_HPP
f95d63e2154a 6989984: Use standard include model for Hospot
stefank
parents: 1552
diff changeset
26 #define SHARE_VM_CI_CISYMBOL_HPP
f95d63e2154a 6989984: Use standard include model for Hospot
stefank
parents: 1552
diff changeset
27
6725
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6266
diff changeset
28 #include "ci/ciBaseObject.hpp"
1972
f95d63e2154a 6989984: Use standard include model for Hospot
stefank
parents: 1552
diff changeset
29 #include "ci/ciObject.hpp"
f95d63e2154a 6989984: Use standard include model for Hospot
stefank
parents: 1552
diff changeset
30 #include "ci/ciObjectFactory.hpp"
f95d63e2154a 6989984: Use standard include model for Hospot
stefank
parents: 1552
diff changeset
31 #include "classfile/vmSymbols.hpp"
2177
3582bf76420e 6990754: Use native memory and reference counting to implement SymbolTable
coleenp
parents: 1972
diff changeset
32 #include "oops/symbol.hpp"
1972
f95d63e2154a 6989984: Use standard include model for Hospot
stefank
parents: 1552
diff changeset
33
0
a61af66fc99e Initial load
duke
parents:
diff changeset
34 // ciSymbol
a61af66fc99e Initial load
duke
parents:
diff changeset
35 //
2177
3582bf76420e 6990754: Use native memory and reference counting to implement SymbolTable
coleenp
parents: 1972
diff changeset
36 // This class represents a Symbol* in the HotSpot virtual
0
a61af66fc99e Initial load
duke
parents:
diff changeset
37 // machine.
6725
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6266
diff changeset
38 class ciSymbol : public ciBaseObject {
2177
3582bf76420e 6990754: Use native memory and reference counting to implement SymbolTable
coleenp
parents: 1972
diff changeset
39 Symbol* _symbol;
3582bf76420e 6990754: Use native memory and reference counting to implement SymbolTable
coleenp
parents: 1972
diff changeset
40
0
a61af66fc99e Initial load
duke
parents:
diff changeset
41 CI_PACKAGE_ACCESS
2177
3582bf76420e 6990754: Use native memory and reference counting to implement SymbolTable
coleenp
parents: 1972
diff changeset
42 // These friends all make direct use of get_symbol:
0
a61af66fc99e Initial load
duke
parents:
diff changeset
43 friend class ciEnv;
a61af66fc99e Initial load
duke
parents:
diff changeset
44 friend class ciInstanceKlass;
a61af66fc99e Initial load
duke
parents:
diff changeset
45 friend class ciSignature;
a61af66fc99e Initial load
duke
parents:
diff changeset
46 friend class ciMethod;
12264
b2e698d2276c 8014013: CallInfo structure no longer accurately reports the result of a LinkResolver operation
drchase
parents: 6972
diff changeset
47 friend class ciField;
0
a61af66fc99e Initial load
duke
parents:
diff changeset
48 friend class ciObjArrayKlass;
a61af66fc99e Initial load
duke
parents:
diff changeset
49
a61af66fc99e Initial load
duke
parents:
diff changeset
50 private:
1507
cd5dbf694d45 6939134: JSR 292 adjustments to method handle invocation
jrose
parents: 1138
diff changeset
51 const vmSymbols::SID _sid;
2177
3582bf76420e 6990754: Use native memory and reference counting to implement SymbolTable
coleenp
parents: 1972
diff changeset
52 DEBUG_ONLY( bool sid_ok() { return vmSymbols::find_sid(get_symbol()) == _sid; } )
1507
cd5dbf694d45 6939134: JSR 292 adjustments to method handle invocation
jrose
parents: 1138
diff changeset
53
2177
3582bf76420e 6990754: Use native memory and reference counting to implement SymbolTable
coleenp
parents: 1972
diff changeset
54 ciSymbol(Symbol* s); // normal case, for symbols not mentioned in vmSymbols
3582bf76420e 6990754: Use native memory and reference counting to implement SymbolTable
coleenp
parents: 1972
diff changeset
55 ciSymbol(Symbol* s, vmSymbols::SID sid); // for use with vmSymbols
0
a61af66fc99e Initial load
duke
parents:
diff changeset
56
2177
3582bf76420e 6990754: Use native memory and reference counting to implement SymbolTable
coleenp
parents: 1972
diff changeset
57 Symbol* get_symbol() const { return _symbol; }
0
a61af66fc99e Initial load
duke
parents:
diff changeset
58
a61af66fc99e Initial load
duke
parents:
diff changeset
59 const char* type_string() { return "ciSymbol"; }
a61af66fc99e Initial load
duke
parents:
diff changeset
60
a61af66fc99e Initial load
duke
parents:
diff changeset
61 void print_impl(outputStream* st);
a61af66fc99e Initial load
duke
parents:
diff changeset
62
2177
3582bf76420e 6990754: Use native memory and reference counting to implement SymbolTable
coleenp
parents: 1972
diff changeset
63 // This is public in Symbol* but private here, because the base can move:
3582bf76420e 6990754: Use native memory and reference counting to implement SymbolTable
coleenp
parents: 1972
diff changeset
64 const jbyte* base();
0
a61af66fc99e Initial load
duke
parents:
diff changeset
65
a61af66fc99e Initial load
duke
parents:
diff changeset
66 // Make a ciSymbol from a C string (implementation).
a61af66fc99e Initial load
duke
parents:
diff changeset
67 static ciSymbol* make_impl(const char* s);
a61af66fc99e Initial load
duke
parents:
diff changeset
68
a61af66fc99e Initial load
duke
parents:
diff changeset
69 public:
1507
cd5dbf694d45 6939134: JSR 292 adjustments to method handle invocation
jrose
parents: 1138
diff changeset
70 // The enumeration ID from vmSymbols, or vmSymbols::NO_SID if none.
cd5dbf694d45 6939134: JSR 292 adjustments to method handle invocation
jrose
parents: 1138
diff changeset
71 vmSymbols::SID sid() const { return _sid; }
cd5dbf694d45 6939134: JSR 292 adjustments to method handle invocation
jrose
parents: 1138
diff changeset
72
0
a61af66fc99e Initial load
duke
parents:
diff changeset
73 // The text of the symbol as a null-terminated utf8 string.
a61af66fc99e Initial load
duke
parents:
diff changeset
74 const char* as_utf8();
a61af66fc99e Initial load
duke
parents:
diff changeset
75 int utf8_length();
a61af66fc99e Initial load
duke
parents:
diff changeset
76
6972
bd7a7ce2e264 6830717: replay of compilations would help with debugging
minqi
parents: 6725
diff changeset
77 // The text of the symbol as ascii with all non-printable characters quoted as \u####
bd7a7ce2e264 6830717: replay of compilations would help with debugging
minqi
parents: 6725
diff changeset
78 const char* as_quoted_ascii();
bd7a7ce2e264 6830717: replay of compilations would help with debugging
minqi
parents: 6725
diff changeset
79
1138
dd57230ba8fe 6893268: additional dynamic language related optimizations in C2
twisti
parents: 0
diff changeset
80 // Return the i-th utf8 byte, where i < utf8_length
dd57230ba8fe 6893268: additional dynamic language related optimizations in C2
twisti
parents: 0
diff changeset
81 int byte_at(int i);
dd57230ba8fe 6893268: additional dynamic language related optimizations in C2
twisti
parents: 0
diff changeset
82
dd57230ba8fe 6893268: additional dynamic language related optimizations in C2
twisti
parents: 0
diff changeset
83 // Tests if the symbol starts with the given prefix.
dd57230ba8fe 6893268: additional dynamic language related optimizations in C2
twisti
parents: 0
diff changeset
84 bool starts_with(const char* prefix, int len) const;
dd57230ba8fe 6893268: additional dynamic language related optimizations in C2
twisti
parents: 0
diff changeset
85
dd57230ba8fe 6893268: additional dynamic language related optimizations in C2
twisti
parents: 0
diff changeset
86 // Determines where the symbol contains the given substring.
dd57230ba8fe 6893268: additional dynamic language related optimizations in C2
twisti
parents: 0
diff changeset
87 int index_of_at(int i, const char* str, int len) const;
dd57230ba8fe 6893268: additional dynamic language related optimizations in C2
twisti
parents: 0
diff changeset
88
0
a61af66fc99e Initial load
duke
parents:
diff changeset
89 void print_symbol_on(outputStream* st);
a61af66fc99e Initial load
duke
parents:
diff changeset
90 void print_symbol() {
a61af66fc99e Initial load
duke
parents:
diff changeset
91 print_symbol_on(tty);
a61af66fc99e Initial load
duke
parents:
diff changeset
92 }
a61af66fc99e Initial load
duke
parents:
diff changeset
93
a61af66fc99e Initial load
duke
parents:
diff changeset
94 // Make a ciSymbol from a C string.
a61af66fc99e Initial load
duke
parents:
diff changeset
95 // Consider adding to vmSymbols.hpp instead of using this constructor.
a61af66fc99e Initial load
duke
parents:
diff changeset
96 // (Your code will be less subject to typographical bugs.)
a61af66fc99e Initial load
duke
parents:
diff changeset
97 static ciSymbol* make(const char* s);
a61af66fc99e Initial load
duke
parents:
diff changeset
98
a61af66fc99e Initial load
duke
parents:
diff changeset
99 #define CI_SYMBOL_DECLARE(name, ignore_def) \
a61af66fc99e Initial load
duke
parents:
diff changeset
100 static ciSymbol* name() { return ciObjectFactory::vm_symbol_at(vmSymbols::VM_SYMBOL_ENUM_NAME(name)); }
a61af66fc99e Initial load
duke
parents:
diff changeset
101 VM_SYMBOLS_DO(CI_SYMBOL_DECLARE, CI_SYMBOL_DECLARE)
a61af66fc99e Initial load
duke
parents:
diff changeset
102 #undef CI_SYMBOL_DECLARE
2177
3582bf76420e 6990754: Use native memory and reference counting to implement SymbolTable
coleenp
parents: 1972
diff changeset
103
3582bf76420e 6990754: Use native memory and reference counting to implement SymbolTable
coleenp
parents: 1972
diff changeset
104 void print() {
3582bf76420e 6990754: Use native memory and reference counting to implement SymbolTable
coleenp
parents: 1972
diff changeset
105 _symbol->print();
3582bf76420e 6990754: Use native memory and reference counting to implement SymbolTable
coleenp
parents: 1972
diff changeset
106 }
3582bf76420e 6990754: Use native memory and reference counting to implement SymbolTable
coleenp
parents: 1972
diff changeset
107
6725
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6266
diff changeset
108 virtual bool is_symbol() const { return true; }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6266
diff changeset
109
2177
3582bf76420e 6990754: Use native memory and reference counting to implement SymbolTable
coleenp
parents: 1972
diff changeset
110 // Are two ciSymbols equal?
3582bf76420e 6990754: Use native memory and reference counting to implement SymbolTable
coleenp
parents: 1972
diff changeset
111 bool equals(ciSymbol* obj) { return this->_symbol == obj->get_symbol(); }
6266
1d7922586cf6 7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents: 2426
diff changeset
112
1d7922586cf6 7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents: 2426
diff changeset
113 bool is_signature_polymorphic_name() const;
0
a61af66fc99e Initial load
duke
parents:
diff changeset
114 };
1972
f95d63e2154a 6989984: Use standard include model for Hospot
stefank
parents: 1552
diff changeset
115
f95d63e2154a 6989984: Use standard include model for Hospot
stefank
parents: 1552
diff changeset
116 #endif // SHARE_VM_CI_CISYMBOL_HPP