Mercurial > hg > graal-compiler
annotate src/share/vm/interpreter/linkResolver.hpp @ 1782:f353275af40e
6981773: incorrect fill value with OptimizeFill
Reviewed-by: kvn, twisti
author | never |
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date | Thu, 02 Sep 2010 11:40:02 -0700 |
parents | 083fde3b838e |
children | f95d63e2154a |
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0 | 1 /* |
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2 * Copyright (c) 1997, 2009, 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 | |
25 // All the necessary definitions for run-time link resolution. | |
26 | |
27 // LinkInfo & its subclasses provide all the information gathered | |
28 // for a particular link after resolving it. A link is any reference | |
29 // made from within the bytecodes of a method to an object outside of | |
30 // that method. If the info is invalid, the link has not been resolved | |
31 // successfully. | |
32 | |
33 class LinkInfo VALUE_OBJ_CLASS_SPEC { | |
34 }; | |
35 | |
36 | |
37 // Link information for getfield/putfield & getstatic/putstatic bytecodes. | |
38 | |
39 class FieldAccessInfo: public LinkInfo { | |
40 protected: | |
41 KlassHandle _klass; | |
42 symbolHandle _name; | |
43 AccessFlags _access_flags; | |
44 int _field_index; // original index in the klass | |
45 int _field_offset; | |
46 BasicType _field_type; | |
47 | |
48 public: | |
49 void set(KlassHandle klass, symbolHandle name, int field_index, int field_offset, | |
50 BasicType field_type, AccessFlags access_flags); | |
51 KlassHandle klass() const { return _klass; } | |
52 symbolHandle name() const { return _name; } | |
53 int field_index() const { return _field_index; } | |
54 int field_offset() const { return _field_offset; } | |
55 BasicType field_type() const { return _field_type; } | |
56 AccessFlags access_flags() const { return _access_flags; } | |
57 | |
58 // debugging | |
59 void print() PRODUCT_RETURN; | |
60 }; | |
61 | |
62 | |
63 // Link information for all calls. | |
64 | |
65 class CallInfo: public LinkInfo { | |
66 private: | |
67 KlassHandle _resolved_klass; // static receiver klass | |
68 KlassHandle _selected_klass; // dynamic receiver class (same as static, or subklass) | |
69 methodHandle _resolved_method; // static target method | |
70 methodHandle _selected_method; // dynamic (actual) target method | |
71 int _vtable_index; // vtable index of selected method | |
72 | |
73 void set_static( KlassHandle resolved_klass, methodHandle resolved_method , TRAPS); | |
74 void set_interface(KlassHandle resolved_klass, KlassHandle selected_klass, methodHandle resolved_method, methodHandle selected_method , TRAPS); | |
75 void set_virtual( KlassHandle resolved_klass, KlassHandle selected_klass, methodHandle resolved_method, methodHandle selected_method, int vtable_index, TRAPS); | |
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76 void set_dynamic( methodHandle resolved_method, TRAPS); |
0 | 77 void set_common( KlassHandle resolved_klass, KlassHandle selected_klass, methodHandle resolved_method, methodHandle selected_method, int vtable_index, TRAPS); |
78 | |
79 friend class LinkResolver; | |
80 | |
81 public: | |
82 KlassHandle resolved_klass() const { return _resolved_klass; } | |
83 KlassHandle selected_klass() const { return _selected_klass; } | |
84 methodHandle resolved_method() const { return _resolved_method; } | |
85 methodHandle selected_method() const { return _selected_method; } | |
86 | |
87 BasicType result_type() const { return selected_method()->result_type(); } | |
88 bool has_vtable_index() const { return _vtable_index >= 0; } | |
89 bool is_statically_bound() const { return _vtable_index == methodOopDesc::nonvirtual_vtable_index; } | |
90 int vtable_index() const { | |
91 // Even for interface calls the vtable index could be non-negative. | |
92 // See CallInfo::set_interface. | |
93 assert(has_vtable_index() || is_statically_bound(), ""); | |
94 return _vtable_index; | |
95 } | |
96 }; | |
97 | |
98 | |
99 // The LinkResolver is used to resolve constant-pool references at run-time. | |
100 // It does all necessary link-time checks & throws exceptions if necessary. | |
101 | |
102 class LinkResolver: AllStatic { | |
103 private: | |
104 static void lookup_method_in_klasses (methodHandle& result, KlassHandle klass, symbolHandle name, symbolHandle signature, TRAPS); | |
105 static void lookup_instance_method_in_klasses (methodHandle& result, KlassHandle klass, symbolHandle name, symbolHandle signature, TRAPS); | |
106 static void lookup_method_in_interfaces (methodHandle& result, KlassHandle klass, symbolHandle name, symbolHandle signature, TRAPS); | |
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107 static void lookup_implicit_method (methodHandle& result, KlassHandle klass, symbolHandle name, symbolHandle signature, |
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108 KlassHandle current_klass, TRAPS); |
0 | 109 |
110 static int vtable_index_of_miranda_method(KlassHandle klass, symbolHandle name, symbolHandle signature, TRAPS); | |
111 | |
112 static void resolve_klass (KlassHandle& result, constantPoolHandle pool, int index, TRAPS); | |
113 static void resolve_klass_no_update (KlassHandle& result, constantPoolHandle pool, int index, TRAPS); // no update of constantPool entry | |
114 | |
115 static void resolve_pool (KlassHandle& resolved_klass, symbolHandle& method_name, symbolHandle& method_signature, KlassHandle& current_klass, constantPoolHandle pool, int index, TRAPS); | |
116 | |
117 static void resolve_interface_method(methodHandle& resolved_method, KlassHandle resolved_klass, symbolHandle method_name, symbolHandle method_signature, KlassHandle current_klass, bool check_access, TRAPS); | |
118 static void resolve_method (methodHandle& resolved_method, KlassHandle resolved_klass, symbolHandle method_name, symbolHandle method_signature, KlassHandle current_klass, bool check_access, TRAPS); | |
119 | |
120 static void linktime_resolve_static_method (methodHandle& resolved_method, KlassHandle resolved_klass, symbolHandle method_name, symbolHandle method_signature, KlassHandle current_klass, bool check_access, TRAPS); | |
121 static void linktime_resolve_special_method (methodHandle& resolved_method, KlassHandle resolved_klass, symbolHandle method_name, symbolHandle method_signature, KlassHandle current_klass, bool check_access, TRAPS); | |
122 static void linktime_resolve_virtual_method (methodHandle &resolved_method, KlassHandle resolved_klass, symbolHandle method_name, symbolHandle method_signature,KlassHandle current_klass, bool check_access, TRAPS); | |
123 static void linktime_resolve_interface_method (methodHandle& resolved_method, KlassHandle resolved_klass, symbolHandle method_name, symbolHandle method_signature, KlassHandle current_klass, bool check_access, TRAPS); | |
124 | |
125 static void runtime_resolve_special_method (CallInfo& result, methodHandle resolved_method, KlassHandle resolved_klass, KlassHandle current_klass, bool check_access, TRAPS); | |
126 static void runtime_resolve_virtual_method (CallInfo& result, methodHandle resolved_method, KlassHandle resolved_klass, Handle recv, KlassHandle recv_klass, bool check_null_and_abstract, TRAPS); | |
127 static void runtime_resolve_interface_method (CallInfo& result, methodHandle resolved_method, KlassHandle resolved_klass, Handle recv, KlassHandle recv_klass, bool check_null_and_abstract, TRAPS); | |
128 | |
129 static void check_field_accessability (KlassHandle ref_klass, KlassHandle resolved_klass, KlassHandle sel_klass, fieldDescriptor& fd, TRAPS); | |
130 static void check_method_accessability (KlassHandle ref_klass, KlassHandle resolved_klass, KlassHandle sel_klass, methodHandle sel_method, TRAPS); | |
131 | |
132 public: | |
133 // constant pool resolving | |
134 static void check_klass_accessability(KlassHandle ref_klass, KlassHandle sel_klass, TRAPS); | |
135 | |
136 // static resolving for all calls except interface calls | |
137 static void resolve_method (methodHandle& method_result, KlassHandle& klass_result, constantPoolHandle pool, int index, TRAPS); | |
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138 static void resolve_dynamic_method (methodHandle& resolved_method, KlassHandle& resolved_klass, constantPoolHandle pool, int index, TRAPS); |
0 | 139 static void resolve_interface_method(methodHandle& method_result, KlassHandle& klass_result, constantPoolHandle pool, int index, TRAPS); |
140 | |
141 // runtime/static resolving for fields | |
142 static void resolve_field(FieldAccessInfo& result, constantPoolHandle pool, int index, Bytecodes::Code byte, bool check_only, TRAPS); | |
143 // takes an extra bool argument "update_pool" to decide whether to update the constantPool during klass resolution. | |
144 static void resolve_field(FieldAccessInfo& result, constantPoolHandle pool, int index, Bytecodes::Code byte, bool check_only, bool update_pool, TRAPS); | |
145 | |
146 // runtime resolving: | |
147 // resolved_klass = specified class (i.e., static receiver class) | |
148 // current_klass = sending method holder (i.e., class containing the method containing the call being resolved) | |
149 static void resolve_static_call (CallInfo& result, KlassHandle& resolved_klass, symbolHandle method_name, symbolHandle method_signature, KlassHandle current_klass, bool check_access, bool initialize_klass, TRAPS); | |
150 static void resolve_special_call (CallInfo& result, KlassHandle resolved_klass, symbolHandle method_name, symbolHandle method_signature, KlassHandle current_klass, bool check_access, TRAPS); | |
151 static void resolve_virtual_call (CallInfo& result, Handle recv, KlassHandle recv_klass, KlassHandle resolved_klass, symbolHandle method_name, symbolHandle method_signature, KlassHandle current_klass, bool check_access, bool check_null_and_abstract, TRAPS); | |
152 static void resolve_interface_call(CallInfo& result, Handle recv, KlassHandle recv_klass, KlassHandle resolved_klass, symbolHandle method_name, symbolHandle method_signature, KlassHandle current_klass, bool check_access, bool check_null_and_abstract, TRAPS); | |
153 | |
154 // same as above for compile-time resolution; but returns null handle instead of throwing an exception on error | |
155 // also, does not initialize klass (i.e., no side effects) | |
156 static methodHandle resolve_virtual_call_or_null (KlassHandle receiver_klass, KlassHandle resolved_klass, symbolHandle method_name, symbolHandle method_signature, KlassHandle current_klass); | |
157 static methodHandle resolve_interface_call_or_null(KlassHandle receiver_klass, KlassHandle resolved_klass, symbolHandle method_name, symbolHandle method_signature, KlassHandle current_klass); | |
158 static methodHandle resolve_static_call_or_null (KlassHandle resolved_klass, symbolHandle method_name, symbolHandle method_signature, KlassHandle current_klass); | |
159 static methodHandle resolve_special_call_or_null (KlassHandle resolved_klass, symbolHandle method_name, symbolHandle method_signature, KlassHandle current_klass); | |
160 | |
161 // same as above for compile-time resolution; returns vtable_index if current_klass if linked | |
162 static int resolve_virtual_vtable_index (KlassHandle receiver_klass, KlassHandle resolved_klass, symbolHandle method_name, symbolHandle method_signature, KlassHandle current_klass); | |
163 | |
164 // static resolving for compiler (does not throw exceptions, returns null handle if unsuccessful) | |
165 static methodHandle linktime_resolve_virtual_method_or_null (KlassHandle resolved_klass, symbolHandle method_name, symbolHandle method_signature, KlassHandle current_klass, bool check_access); | |
166 static methodHandle linktime_resolve_interface_method_or_null(KlassHandle resolved_klass, symbolHandle method_name, symbolHandle method_signature, KlassHandle current_klass, bool check_access); | |
167 | |
168 // runtime resolving from constant pool | |
169 static void resolve_invokestatic (CallInfo& result, constantPoolHandle pool, int index, TRAPS); | |
170 static void resolve_invokespecial (CallInfo& result, constantPoolHandle pool, int index, TRAPS); | |
171 static void resolve_invokevirtual (CallInfo& result, Handle recv, constantPoolHandle pool, int index, TRAPS); | |
172 static void resolve_invokeinterface(CallInfo& result, Handle recv, constantPoolHandle pool, int index, TRAPS); | |
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173 static void resolve_invokedynamic (CallInfo& result, constantPoolHandle pool, int index, TRAPS); |
0 | 174 |
175 static void resolve_invoke (CallInfo& result, Handle recv, constantPoolHandle pool, int index, Bytecodes::Code byte, TRAPS); | |
176 }; |