Mercurial > hg > truffle
annotate src/share/vm/prims/methodHandles.hpp @ 7287:76c9023ed438
Remove now useless prefix arguments for jtt unittests
author | Gilles Duboscq <duboscq@ssw.jku.at> |
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date | Thu, 20 Dec 2012 17:06:59 +0100 |
parents | 65d07d9ee446 |
children | 6337ca4dcad8 |
rev | line source |
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710 | 1 /* |
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2 * Copyright (c) 2008, 2012, Oracle and/or its affiliates. All rights reserved. |
710 | 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. |
710 | 22 * |
23 */ | |
24 | |
1972 | 25 #ifndef SHARE_VM_PRIMS_METHODHANDLES_HPP |
26 #define SHARE_VM_PRIMS_METHODHANDLES_HPP | |
27 | |
28 #include "classfile/javaClasses.hpp" | |
29 #include "classfile/vmSymbols.hpp" | |
30 #include "runtime/frame.inline.hpp" | |
31 #include "runtime/globals.hpp" | |
32 #include "runtime/interfaceSupport.hpp" | |
33 | |
710 | 34 class MacroAssembler; |
35 class Label; | |
36 | |
37 class MethodHandles: AllStatic { | |
38 // JVM support for MethodHandle, MethodType, and related types | |
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39 // in java.lang.invoke and sun.invoke. |
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40 // See also javaClasses for layouts java_lang_invoke_Method{Handle,Type,Type::Form}. |
710 | 41 public: |
42 public: | |
43 static bool enabled() { return _enabled; } | |
44 static void set_enabled(bool z); | |
45 | |
46 private: | |
47 static bool _enabled; | |
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48 |
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49 // Adapters. |
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50 static MethodHandlesAdapterBlob* _adapter_code; |
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51 |
710 | 52 public: |
53 // working with member names | |
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54 static Handle resolve_MemberName(Handle mname, TRAPS); // compute vmtarget/vmindex from name/type |
710 | 55 static void expand_MemberName(Handle mname, int suppress, TRAPS); // expand defc/name/type if missing |
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56 static Handle new_MemberName(TRAPS); // must be followed by init_MemberName |
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57 static oop init_MemberName(oop mname_oop, oop target_oop); // compute vmtarget/vmindex from target |
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58 static oop init_method_MemberName(oop mname_oop, Method* m, bool do_dispatch, |
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59 Klass* receiver_limit); |
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60 static oop init_field_MemberName(oop mname_oop, Klass* field_holder, |
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61 AccessFlags mods, oop type, oop name, |
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62 intptr_t offset, bool is_setter = false); |
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63 static Handle init_method_MemberName(oop mname_oop, CallInfo& info, TRAPS); |
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64 static Handle init_field_MemberName(oop mname_oop, FieldAccessInfo& info, TRAPS); |
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65 static int method_ref_kind(Method* m, bool do_dispatch_if_possible = true); |
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66 static int find_MemberNames(Klass* k, Symbol* name, Symbol* sig, |
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67 int mflags, Klass* caller, |
710 | 68 int skip, objArrayOop results); |
69 // bit values for suppress argument to expand_MemberName: | |
70 enum { _suppress_defc = 1, _suppress_name = 2, _suppress_type = 4 }; | |
71 | |
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72 // Generate MethodHandles adapters. |
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73 static void generate_adapters(); |
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74 |
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75 // Called from MethodHandlesAdapterGenerator. |
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76 static address generate_method_handle_interpreter_entry(MacroAssembler* _masm, vmIntrinsics::ID iid); |
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77 static void generate_method_handle_dispatch(MacroAssembler* _masm, |
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78 vmIntrinsics::ID iid, |
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79 Register receiver_reg, |
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80 Register member_reg, |
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81 bool for_compiler_entry); |
710 | 82 |
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83 // Queries |
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84 static bool is_signature_polymorphic(vmIntrinsics::ID iid) { |
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85 return (iid >= vmIntrinsics::FIRST_MH_SIG_POLY && |
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86 iid <= vmIntrinsics::LAST_MH_SIG_POLY); |
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87 } |
710 | 88 |
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89 static bool is_signature_polymorphic_intrinsic(vmIntrinsics::ID iid) { |
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90 assert(is_signature_polymorphic(iid), ""); |
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91 // Most sig-poly methods are intrinsics which do not require an |
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92 // appeal to Java for adapter code. |
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93 return (iid != vmIntrinsics::_invokeGeneric); |
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94 } |
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95 |
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96 static bool is_signature_polymorphic_static(vmIntrinsics::ID iid) { |
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97 assert(is_signature_polymorphic(iid), ""); |
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98 return (iid >= vmIntrinsics::FIRST_MH_STATIC && |
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99 iid <= vmIntrinsics::LAST_MH_SIG_POLY); |
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100 } |
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101 |
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102 static bool has_member_arg(vmIntrinsics::ID iid) { |
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103 assert(is_signature_polymorphic(iid), ""); |
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104 return (iid >= vmIntrinsics::_linkToVirtual && |
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105 iid <= vmIntrinsics::_linkToInterface); |
710 | 106 } |
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107 static bool has_member_arg(Symbol* klass, Symbol* name) { |
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108 if ((klass == vmSymbols::java_lang_invoke_MethodHandle()) && |
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109 is_signature_polymorphic_name(name)) { |
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110 vmIntrinsics::ID iid = signature_polymorphic_name_id(name); |
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111 return has_member_arg(iid); |
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112 } |
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113 return false; |
710 | 114 } |
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115 |
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116 static Symbol* signature_polymorphic_intrinsic_name(vmIntrinsics::ID iid); |
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117 static int signature_polymorphic_intrinsic_ref_kind(vmIntrinsics::ID iid); |
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118 |
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119 static vmIntrinsics::ID signature_polymorphic_name_id(Klass* klass, Symbol* name); |
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120 static vmIntrinsics::ID signature_polymorphic_name_id(Symbol* name); |
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121 static bool is_signature_polymorphic_name(Symbol* name) { |
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122 return signature_polymorphic_name_id(name) != vmIntrinsics::_none; |
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123 } |
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124 static bool is_method_handle_invoke_name(Klass* klass, Symbol* name); |
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125 static bool is_signature_polymorphic_name(Klass* klass, Symbol* name) { |
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126 return signature_polymorphic_name_id(klass, name) != vmIntrinsics::_none; |
710 | 127 } |
128 | |
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129 enum { |
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130 // format of query to getConstant: |
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131 GC_COUNT_GWT = 4, |
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132 GC_LAMBDA_SUPPORT = 5 |
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133 }; |
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134 static int get_named_constant(int which, Handle name_box, TRAPS); |
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135 |
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136 public: |
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137 static Symbol* lookup_signature(oop type_str, bool polymorphic, TRAPS); // use TempNewSymbol |
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138 static Symbol* lookup_basic_type_signature(Symbol* sig, bool keep_last_arg, TRAPS); // use TempNewSymbol |
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139 static Symbol* lookup_basic_type_signature(Symbol* sig, TRAPS) { |
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140 return lookup_basic_type_signature(sig, false, THREAD); |
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141 } |
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142 static bool is_basic_type_signature(Symbol* sig); |
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143 |
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144 static Symbol* lookup_method_type(Symbol* msig, Handle mtype, TRAPS); |
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145 |
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146 static void print_as_method_type_on(outputStream* st, Symbol* sig) { |
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147 print_as_basic_type_signature_on(st, sig, true, true); |
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148 } |
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149 static void print_as_basic_type_signature_on(outputStream* st, Symbol* sig, bool keep_arrays = false, bool keep_basic_names = false); |
710 | 150 |
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151 // decoding CONSTANT_MethodHandle constants |
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152 enum { JVM_REF_MIN = JVM_REF_getField, JVM_REF_MAX = JVM_REF_invokeInterface }; |
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153 static bool ref_kind_is_valid(int ref_kind) { |
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154 return (ref_kind >= JVM_REF_MIN && ref_kind <= JVM_REF_MAX); |
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155 } |
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156 static bool ref_kind_is_field(int ref_kind) { |
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157 assert(ref_kind_is_valid(ref_kind), ""); |
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158 return (ref_kind <= JVM_REF_putStatic); |
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159 } |
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160 static bool ref_kind_is_getter(int ref_kind) { |
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161 assert(ref_kind_is_valid(ref_kind), ""); |
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162 return (ref_kind <= JVM_REF_getStatic); |
710 | 163 } |
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164 static bool ref_kind_is_setter(int ref_kind) { |
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165 return ref_kind_is_field(ref_kind) && !ref_kind_is_getter(ref_kind); |
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166 } |
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167 static bool ref_kind_is_method(int ref_kind) { |
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168 return !ref_kind_is_field(ref_kind) && (ref_kind != JVM_REF_newInvokeSpecial); |
710 | 169 } |
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170 static bool ref_kind_has_receiver(int ref_kind) { |
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171 assert(ref_kind_is_valid(ref_kind), ""); |
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172 return (ref_kind & 1) != 0; |
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173 } |
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174 static bool ref_kind_is_static(int ref_kind) { |
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175 return !ref_kind_has_receiver(ref_kind) && (ref_kind != JVM_REF_newInvokeSpecial); |
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176 } |
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177 static bool ref_kind_does_dispatch(int ref_kind) { |
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178 return (ref_kind == JVM_REF_invokeVirtual || |
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179 ref_kind == JVM_REF_invokeInterface); |
710 | 180 } |
181 | |
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182 |
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183 #ifdef TARGET_ARCH_x86 |
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184 # include "methodHandles_x86.hpp" |
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185 #endif |
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186 #ifdef TARGET_ARCH_sparc |
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187 # include "methodHandles_sparc.hpp" |
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188 #endif |
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189 #ifdef TARGET_ARCH_zero |
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190 # include "methodHandles_zero.hpp" |
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191 #endif |
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192 #ifdef TARGET_ARCH_arm |
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193 # include "methodHandles_arm.hpp" |
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194 #endif |
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195 #ifdef TARGET_ARCH_ppc |
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196 # include "methodHandles_ppc.hpp" |
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197 #endif |
710 | 198 |
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199 // Tracing |
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200 static void trace_method_handle(MacroAssembler* _masm, const char* adaptername) PRODUCT_RETURN; |
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201 static void trace_method_handle_interpreter_entry(MacroAssembler* _masm, vmIntrinsics::ID iid) { |
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202 if (TraceMethodHandles) { |
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203 const char* name = vmIntrinsics::name_at(iid); |
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204 if (*name == '_') name += 1; |
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205 const size_t len = strlen(name) + 50; |
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206 char* qname = NEW_C_HEAP_ARRAY(char, len, mtInternal); |
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207 const char* suffix = ""; |
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208 if (is_signature_polymorphic(iid)) { |
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209 if (is_signature_polymorphic_static(iid)) |
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210 suffix = "/static"; |
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211 else |
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212 suffix = "/private"; |
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213 } |
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214 jio_snprintf(qname, len, "MethodHandle::interpreter_entry::%s%s", name, suffix); |
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215 trace_method_handle(_masm, qname); |
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216 // Note: Don't free the allocated char array because it's used |
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217 // during runtime. |
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218 } |
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219 } |
710 | 220 }; |
221 | |
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222 |
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223 //------------------------------------------------------------------------------ |
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224 // MethodHandlesAdapterGenerator |
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225 // |
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226 class MethodHandlesAdapterGenerator : public StubCodeGenerator { |
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227 public: |
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228 MethodHandlesAdapterGenerator(CodeBuffer* code) : StubCodeGenerator(code, PrintMethodHandleStubs) {} |
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229 |
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230 void generate(); |
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231 }; |
1972 | 232 |
233 #endif // SHARE_VM_PRIMS_METHODHANDLES_HPP |