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annotate src/cpu/x86/vm/methodHandles_x86.cpp @ 7212:291ffc492eb6

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Merge with http://hg.openjdk.java.net/hsx/hsx25/hotspot/
author Doug Simon <doug.simon@oracle.com>
date Fri, 14 Dec 2012 14:35:13 +0100
parents cd3d6a6b95d9
children fd74228fd5ca
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1 /*
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2 * Copyright (c) 1997, 2012, Oracle and/or its affiliates. All rights reserved.
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3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
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4 *
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5 * This code is free software; you can redistribute it and/or modify it
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6 * under the terms of the GNU General Public License version 2 only, as
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7 * published by the Free Software Foundation.
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8 *
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9 * This code is distributed in the hope that it will be useful, but WITHOUT
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10 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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11 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
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12 * version 2 for more details (a copy is included in the LICENSE file that
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13 * accompanied this code).
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14 *
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15 * You should have received a copy of the GNU General Public License version
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16 * 2 along with this work; if not, write to the Free Software Foundation,
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17 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
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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.
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22 *
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23 */
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24
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25 #include "precompiled.hpp"
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26 #include "asm/macroAssembler.hpp"
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27 #include "interpreter/interpreter.hpp"
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28 #include "interpreter/interpreterRuntime.hpp"
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29 #include "memory/allocation.inline.hpp"
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30 #include "prims/methodHandles.hpp"
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31
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32 #define __ _masm->
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33
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34 #ifdef PRODUCT
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35 #define BLOCK_COMMENT(str) /* nothing */
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36 #define STOP(error) stop(error)
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37 #else
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38 #define BLOCK_COMMENT(str) __ block_comment(str)
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39 #define STOP(error) block_comment(error); __ stop(error)
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40 #endif
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41
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42 #define BIND(label) bind(label); BLOCK_COMMENT(#label ":")
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43
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44 // Workaround for C++ overloading nastiness on '0' for RegisterOrConstant.
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45 static RegisterOrConstant constant(int value) {
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46 return RegisterOrConstant(value);
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47 }
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48
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49 void MethodHandles::load_klass_from_Class(MacroAssembler* _masm, Register klass_reg) {
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50 if (VerifyMethodHandles)
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51 verify_klass(_masm, klass_reg, SystemDictionary::WK_KLASS_ENUM_NAME(java_lang_Class),
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52 "MH argument is a Class");
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53 __ movptr(klass_reg, Address(klass_reg, java_lang_Class::klass_offset_in_bytes()));
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54 }
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55
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56 #ifdef ASSERT
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57 static int check_nonzero(const char* xname, int x) {
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58 assert(x != 0, err_msg("%s should be nonzero", xname));
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59 return x;
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60 }
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61 #define NONZERO(x) check_nonzero(#x, x)
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62 #else //ASSERT
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63 #define NONZERO(x) (x)
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64 #endif //ASSERT
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65
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66 #ifdef ASSERT
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67 void MethodHandles::verify_klass(MacroAssembler* _masm,
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68 Register obj, SystemDictionary::WKID klass_id,
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69 const char* error_message) {
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70 Klass** klass_addr = SystemDictionary::well_known_klass_addr(klass_id);
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71 KlassHandle klass = SystemDictionary::well_known_klass(klass_id);
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72 Register temp = rdi;
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73 Register temp2 = noreg;
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74 LP64_ONLY(temp2 = rscratch1); // used by MacroAssembler::cmpptr
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75 Label L_ok, L_bad;
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76 BLOCK_COMMENT("verify_klass {");
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77 __ verify_oop(obj);
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78 __ testptr(obj, obj);
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79 __ jcc(Assembler::zero, L_bad);
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80 __ push(temp); if (temp2 != noreg) __ push(temp2);
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81 #define UNPUSH { if (temp2 != noreg) __ pop(temp2); __ pop(temp); }
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82 __ load_klass(temp, obj);
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83 __ cmpptr(temp, ExternalAddress((address) klass_addr));
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84 __ jcc(Assembler::equal, L_ok);
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85 intptr_t super_check_offset = klass->super_check_offset();
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86 __ movptr(temp, Address(temp, super_check_offset));
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87 __ cmpptr(temp, ExternalAddress((address) klass_addr));
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88 __ jcc(Assembler::equal, L_ok);
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89 UNPUSH;
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90 __ bind(L_bad);
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91 __ STOP(error_message);
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92 __ BIND(L_ok);
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93 UNPUSH;
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94 BLOCK_COMMENT("} verify_klass");
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95 }
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96
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97 void MethodHandles::verify_ref_kind(MacroAssembler* _masm, int ref_kind, Register member_reg, Register temp) {
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98 Label L;
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99 BLOCK_COMMENT("verify_ref_kind {");
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100 __ movl(temp, Address(member_reg, NONZERO(java_lang_invoke_MemberName::flags_offset_in_bytes())));
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101 __ shrl(temp, java_lang_invoke_MemberName::MN_REFERENCE_KIND_SHIFT);
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102 __ andl(temp, java_lang_invoke_MemberName::MN_REFERENCE_KIND_MASK);
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103 __ cmpl(temp, ref_kind);
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104 __ jcc(Assembler::equal, L);
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105 { char* buf = NEW_C_HEAP_ARRAY(char, 100, mtInternal);
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106 jio_snprintf(buf, 100, "verify_ref_kind expected %x", ref_kind);
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107 if (ref_kind == JVM_REF_invokeVirtual ||
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108 ref_kind == JVM_REF_invokeSpecial)
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109 // could do this for all ref_kinds, but would explode assembly code size
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110 trace_method_handle(_masm, buf);
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111 __ STOP(buf);
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112 }
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113 BLOCK_COMMENT("} verify_ref_kind");
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114 __ bind(L);
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115 }
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116
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117 #endif //ASSERT
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118
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119 void MethodHandles::jump_from_method_handle(MacroAssembler* _masm, Register method, Register temp,
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120 bool for_compiler_entry) {
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121 assert(method == rbx, "interpreter calling convention");
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122 __ verify_method_ptr(method);
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123
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124 if (!for_compiler_entry && JvmtiExport::can_post_interpreter_events()) {
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125 Label run_compiled_code;
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126 // JVMTI events, such as single-stepping, are implemented partly by avoiding running
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127 // compiled code in threads for which the event is enabled. Check here for
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128 // interp_only_mode if these events CAN be enabled.
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129 #ifdef _LP64
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130 Register rthread = r15_thread;
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131 #else
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132 Register rthread = temp;
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133 __ get_thread(rthread);
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134 #endif
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135 // interp_only is an int, on little endian it is sufficient to test the byte only
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136 // Is a cmpl faster?
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137 __ cmpb(Address(rthread, JavaThread::interp_only_mode_offset()), 0);
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138 __ jccb(Assembler::zero, run_compiled_code);
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139 __ jmp(Address(method, Method::interpreter_entry_offset()));
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140 __ BIND(run_compiled_code);
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141 }
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142
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143 const ByteSize entry_offset = for_compiler_entry ? Method::from_compiled_offset() :
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144 Method::from_interpreted_offset();
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145 __ jmp(Address(method, entry_offset));
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146 }
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147
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148 void MethodHandles::jump_to_lambda_form(MacroAssembler* _masm,
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149 Register recv, Register method_temp,
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150 Register temp2,
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151 bool for_compiler_entry) {
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152 BLOCK_COMMENT("jump_to_lambda_form {");
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153 // This is the initial entry point of a lazy method handle.
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154 // After type checking, it picks up the invoker from the LambdaForm.
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155 assert_different_registers(recv, method_temp, temp2);
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156 assert(recv != noreg, "required register");
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157 assert(method_temp == rbx, "required register for loading method");
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158
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159 //NOT_PRODUCT({ FlagSetting fs(TraceMethodHandles, true); trace_method_handle(_masm, "LZMH"); });
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160
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161 // Load the invoker, as MH -> MH.form -> LF.vmentry
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162 __ verify_oop(recv);
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163 __ load_heap_oop(method_temp, Address(recv, NONZERO(java_lang_invoke_MethodHandle::form_offset_in_bytes())));
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164 __ verify_oop(method_temp);
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165 __ load_heap_oop(method_temp, Address(method_temp, NONZERO(java_lang_invoke_LambdaForm::vmentry_offset_in_bytes())));
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166 __ verify_oop(method_temp);
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167 // the following assumes that a Method* is normally compressed in the vmtarget field:
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168 __ movptr(method_temp, Address(method_temp, NONZERO(java_lang_invoke_MemberName::vmtarget_offset_in_bytes())));
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169
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170 if (VerifyMethodHandles && !for_compiler_entry) {
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171 // make sure recv is already on stack
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172 __ load_sized_value(temp2,
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173 Address(method_temp, Method::size_of_parameters_offset()),
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174 sizeof(u2), /*is_signed*/ false);
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175 // assert(sizeof(u2) == sizeof(Method::_size_of_parameters), "");
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176 Label L;
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177 __ cmpptr(recv, __ argument_address(temp2, -1));
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178 __ jcc(Assembler::equal, L);
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179 __ movptr(rax, __ argument_address(temp2, -1));
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180 __ STOP("receiver not on stack");
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181 __ BIND(L);
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182 }
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183
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184 jump_from_method_handle(_masm, method_temp, temp2, for_compiler_entry);
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185 BLOCK_COMMENT("} jump_to_lambda_form");
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186 }
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187
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188
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189 // Code generation
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190 address MethodHandles::generate_method_handle_interpreter_entry(MacroAssembler* _masm,
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191 vmIntrinsics::ID iid) {
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192 const bool not_for_compiler_entry = false; // this is the interpreter entry
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193 assert(is_signature_polymorphic(iid), "expected invoke iid");
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194 if (iid == vmIntrinsics::_invokeGeneric ||
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195 iid == vmIntrinsics::_compiledLambdaForm) {
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196 // Perhaps surprisingly, the symbolic references visible to Java are not directly used.
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197 // They are linked to Java-generated adapters via MethodHandleNatives.linkMethod.
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198 // They all allow an appendix argument.
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199 __ hlt(); // empty stubs make SG sick
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200 return NULL;
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201 }
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202
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203 // rsi/r13: sender SP (must preserve; see prepare_to_jump_from_interpreted)
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204 // rbx: Method*
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205 // rdx: argument locator (parameter slot count, added to rsp)
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206 // rcx: used as temp to hold mh or receiver
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207 // rax, rdi: garbage temps, blown away
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208 Register rdx_argp = rdx; // argument list ptr, live on error paths
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209 Register rax_temp = rax;
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210 Register rcx_mh = rcx; // MH receiver; dies quickly and is recycled
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211 Register rbx_method = rbx; // eventual target of this invocation
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212
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213 // here's where control starts out:
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214 __ align(CodeEntryAlignment);
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215 address entry_point = __ pc();
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216
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217 if (VerifyMethodHandles) {
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218 Label L;
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219 BLOCK_COMMENT("verify_intrinsic_id {");
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220 __ cmpb(Address(rbx_method, Method::intrinsic_id_offset_in_bytes()), (int) iid);
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221 __ jcc(Assembler::equal, L);
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222 if (iid == vmIntrinsics::_linkToVirtual ||
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223 iid == vmIntrinsics::_linkToSpecial) {
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224 // could do this for all kinds, but would explode assembly code size
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225 trace_method_handle(_masm, "bad Method*::intrinsic_id");
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226 }
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227 __ STOP("bad Method*::intrinsic_id");
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228 __ bind(L);
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229 BLOCK_COMMENT("} verify_intrinsic_id");
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230 }
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231
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232 // First task: Find out how big the argument list is.
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233 Address rdx_first_arg_addr;
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234 int ref_kind = signature_polymorphic_intrinsic_ref_kind(iid);
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235 assert(ref_kind != 0 || iid == vmIntrinsics::_invokeBasic, "must be _invokeBasic or a linkTo intrinsic");
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236 if (ref_kind == 0 || MethodHandles::ref_kind_has_receiver(ref_kind)) {
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237 __ load_sized_value(rdx_argp,
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238 Address(rbx_method, Method::size_of_parameters_offset()),
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239 sizeof(u2), /*is_signed*/ false);
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240 // assert(sizeof(u2) == sizeof(Method::_size_of_parameters), "");
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241 rdx_first_arg_addr = __ argument_address(rdx_argp, -1);
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242 } else {
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243 DEBUG_ONLY(rdx_argp = noreg);
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244 }
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245
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246 if (!is_signature_polymorphic_static(iid)) {
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247 __ movptr(rcx_mh, rdx_first_arg_addr);
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248 DEBUG_ONLY(rdx_argp = noreg);
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249 }
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250
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251 // rdx_first_arg_addr is live!
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252
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253 trace_method_handle_interpreter_entry(_masm, iid);
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254
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255 if (iid == vmIntrinsics::_invokeBasic) {
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256 generate_method_handle_dispatch(_masm, iid, rcx_mh, noreg, not_for_compiler_entry);
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257
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258 } else {
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259 // Adjust argument list by popping the trailing MemberName argument.
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260 Register rcx_recv = noreg;
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261 if (MethodHandles::ref_kind_has_receiver(ref_kind)) {
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262 // Load the receiver (not the MH; the actual MemberName's receiver) up from the interpreter stack.
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263 __ movptr(rcx_recv = rcx, rdx_first_arg_addr);
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264 }
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265 DEBUG_ONLY(rdx_argp = noreg);
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266 Register rbx_member = rbx_method; // MemberName ptr; incoming method ptr is dead now
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267 __ pop(rax_temp); // return address
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268 __ pop(rbx_member); // extract last argument
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269 __ push(rax_temp); // re-push return address
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270 generate_method_handle_dispatch(_masm, iid, rcx_recv, rbx_member, not_for_compiler_entry);
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271 }
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272
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273 return entry_point;
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274 }
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275
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276 void MethodHandles::generate_method_handle_dispatch(MacroAssembler* _masm,
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277 vmIntrinsics::ID iid,
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278 Register receiver_reg,
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279 Register member_reg,
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280 bool for_compiler_entry) {
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281 assert(is_signature_polymorphic(iid), "expected invoke iid");
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282 Register rbx_method = rbx; // eventual target of this invocation
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283 // temps used in this code are not used in *either* compiled or interpreted calling sequences
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284 #ifdef _LP64
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285 Register temp1 = rscratch1;
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286 Register temp2 = rscratch2;
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287 Register temp3 = rax;
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288 if (for_compiler_entry) {
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289 assert(receiver_reg == (iid == vmIntrinsics::_linkToStatic ? noreg : j_rarg0), "only valid assignment");
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290 assert_different_registers(temp1, j_rarg0, j_rarg1, j_rarg2, j_rarg3, j_rarg4, j_rarg5);
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291 assert_different_registers(temp2, j_rarg0, j_rarg1, j_rarg2, j_rarg3, j_rarg4, j_rarg5);
1d7922586cf6 7023639: JSR 292 method handle invocation needs a fast path for compiled code
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diff changeset
292 assert_different_registers(temp3, j_rarg0, j_rarg1, j_rarg2, j_rarg3, j_rarg4, j_rarg5);
710
e5b0439ef4ae 6655638: dynamic languages need method handles
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parents:
diff changeset
293 }
6266
1d7922586cf6 7023639: JSR 292 method handle invocation needs a fast path for compiled code
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diff changeset
294 #else
1d7922586cf6 7023639: JSR 292 method handle invocation needs a fast path for compiled code
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diff changeset
295 Register temp1 = (for_compiler_entry ? rsi : rdx);
1d7922586cf6 7023639: JSR 292 method handle invocation needs a fast path for compiled code
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diff changeset
296 Register temp2 = rdi;
1d7922586cf6 7023639: JSR 292 method handle invocation needs a fast path for compiled code
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diff changeset
297 Register temp3 = rax;
1d7922586cf6 7023639: JSR 292 method handle invocation needs a fast path for compiled code
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diff changeset
298 if (for_compiler_entry) {
1d7922586cf6 7023639: JSR 292 method handle invocation needs a fast path for compiled code
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diff changeset
299 assert(receiver_reg == (iid == vmIntrinsics::_linkToStatic ? noreg : rcx), "only valid assignment");
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300 assert_different_registers(temp1, rcx, rdx);
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diff changeset
301 assert_different_registers(temp2, rcx, rdx);
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diff changeset
302 assert_different_registers(temp3, rcx, rdx);
3363
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diff changeset
303 }
167b70ff3abc 6939861: JVM should handle more conversion operations
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parents: 3336
diff changeset
304 #endif
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diff changeset
305 else {
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diff changeset
306 assert_different_registers(temp1, temp2, temp3, saved_last_sp_register()); // don't trash lastSP
2cb2f30450c7 7196262: JSR 292: java/lang/invoke/PrivateInvokeTest.java fails on solaris-sparc
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diff changeset
307 }
6266
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diff changeset
308 assert_different_registers(temp1, temp2, temp3, receiver_reg);
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diff changeset
309 assert_different_registers(temp1, temp2, temp3, member_reg);
1d7922586cf6 7023639: JSR 292 method handle invocation needs a fast path for compiled code
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diff changeset
310
1d7922586cf6 7023639: JSR 292 method handle invocation needs a fast path for compiled code
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diff changeset
311 if (iid == vmIntrinsics::_invokeBasic) {
1d7922586cf6 7023639: JSR 292 method handle invocation needs a fast path for compiled code
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diff changeset
312 // indirect through MH.form.vmentry.vmtarget
1d7922586cf6 7023639: JSR 292 method handle invocation needs a fast path for compiled code
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diff changeset
313 jump_to_lambda_form(_masm, receiver_reg, rbx_method, temp1, for_compiler_entry);
1d7922586cf6 7023639: JSR 292 method handle invocation needs a fast path for compiled code
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314
1d7922586cf6 7023639: JSR 292 method handle invocation needs a fast path for compiled code
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diff changeset
315 } else {
1d7922586cf6 7023639: JSR 292 method handle invocation needs a fast path for compiled code
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diff changeset
316 // The method is a member invoker used by direct method handles.
1d7922586cf6 7023639: JSR 292 method handle invocation needs a fast path for compiled code
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diff changeset
317 if (VerifyMethodHandles) {
1d7922586cf6 7023639: JSR 292 method handle invocation needs a fast path for compiled code
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diff changeset
318 // make sure the trailing argument really is a MemberName (caller responsibility)
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coleenp
parents: 6266
diff changeset
319 verify_klass(_masm, member_reg, SystemDictionary::WK_KLASS_ENUM_NAME(java_lang_invoke_MemberName),
6266
1d7922586cf6 7023639: JSR 292 method handle invocation needs a fast path for compiled code
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diff changeset
320 "MemberName required for invokeVirtual etc.");
1d7922586cf6 7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents: 4939
diff changeset
321 }
1d7922586cf6 7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents: 4939
diff changeset
322
1d7922586cf6 7023639: JSR 292 method handle invocation needs a fast path for compiled code
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diff changeset
323 Address member_clazz( member_reg, NONZERO(java_lang_invoke_MemberName::clazz_offset_in_bytes()));
1d7922586cf6 7023639: JSR 292 method handle invocation needs a fast path for compiled code
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diff changeset
324 Address member_vmindex( member_reg, NONZERO(java_lang_invoke_MemberName::vmindex_offset_in_bytes()));
1d7922586cf6 7023639: JSR 292 method handle invocation needs a fast path for compiled code
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diff changeset
325 Address member_vmtarget( member_reg, NONZERO(java_lang_invoke_MemberName::vmtarget_offset_in_bytes()));
3363
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parents: 3336
diff changeset
326
6266
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diff changeset
327 Register temp1_recv_klass = temp1;
1d7922586cf6 7023639: JSR 292 method handle invocation needs a fast path for compiled code
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diff changeset
328 if (iid != vmIntrinsics::_linkToStatic) {
1d7922586cf6 7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
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diff changeset
329 __ verify_oop(receiver_reg);
1d7922586cf6 7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents: 4939
diff changeset
330 if (iid == vmIntrinsics::_linkToSpecial) {
1d7922586cf6 7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents: 4939
diff changeset
331 // Don't actually load the klass; just null-check the receiver.
1d7922586cf6 7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
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diff changeset
332 __ null_check(receiver_reg);
1d7922586cf6 7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents: 4939
diff changeset
333 } else {
1d7922586cf6 7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents: 4939
diff changeset
334 // load receiver klass itself
1d7922586cf6 7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents: 4939
diff changeset
335 __ null_check(receiver_reg, oopDesc::klass_offset_in_bytes());
1d7922586cf6 7023639: JSR 292 method handle invocation needs a fast path for compiled code
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diff changeset
336 __ load_klass(temp1_recv_klass, receiver_reg);
6740
75f33eecc1b3 7196681: NPG: Some JSR 292 tests crash in Windows exception handler
coleenp
parents: 6725
diff changeset
337 __ verify_klass_ptr(temp1_recv_klass);
6266
1d7922586cf6 7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
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diff changeset
338 }
1d7922586cf6 7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
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diff changeset
339 BLOCK_COMMENT("check_receiver {");
1d7922586cf6 7023639: JSR 292 method handle invocation needs a fast path for compiled code
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diff changeset
340 // The receiver for the MemberName must be in receiver_reg.
1d7922586cf6 7023639: JSR 292 method handle invocation needs a fast path for compiled code
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diff changeset
341 // Check the receiver against the MemberName.clazz
1d7922586cf6 7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents: 4939
diff changeset
342 if (VerifyMethodHandles && iid == vmIntrinsics::_linkToSpecial) {
1d7922586cf6 7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
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diff changeset
343 // Did not load it above...
1d7922586cf6 7023639: JSR 292 method handle invocation needs a fast path for compiled code
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diff changeset
344 __ load_klass(temp1_recv_klass, receiver_reg);
6740
75f33eecc1b3 7196681: NPG: Some JSR 292 tests crash in Windows exception handler
coleenp
parents: 6725
diff changeset
345 __ verify_klass_ptr(temp1_recv_klass);
6266
1d7922586cf6 7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents: 4939
diff changeset
346 }
1d7922586cf6 7023639: JSR 292 method handle invocation needs a fast path for compiled code
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parents: 4939
diff changeset
347 if (VerifyMethodHandles && iid != vmIntrinsics::_linkToInterface) {
1d7922586cf6 7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents: 4939
diff changeset
348 Label L_ok;
1d7922586cf6 7023639: JSR 292 method handle invocation needs a fast path for compiled code
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diff changeset
349 Register temp2_defc = temp2;
1d7922586cf6 7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
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diff changeset
350 __ load_heap_oop(temp2_defc, member_clazz);
1d7922586cf6 7023639: JSR 292 method handle invocation needs a fast path for compiled code
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diff changeset
351 load_klass_from_Class(_masm, temp2_defc);
6740
75f33eecc1b3 7196681: NPG: Some JSR 292 tests crash in Windows exception handler
coleenp
parents: 6725
diff changeset
352 __ verify_klass_ptr(temp2_defc);
6266
1d7922586cf6 7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
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diff changeset
353 __ check_klass_subtype(temp1_recv_klass, temp2_defc, temp3, L_ok);
1d7922586cf6 7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents: 4939
diff changeset
354 // If we get here, the type check failed!
1d7922586cf6 7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
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diff changeset
355 __ STOP("receiver class disagrees with MemberName.clazz");
1d7922586cf6 7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents: 4939
diff changeset
356 __ bind(L_ok);
1d7922586cf6 7023639: JSR 292 method handle invocation needs a fast path for compiled code
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parents: 4939
diff changeset
357 }
1d7922586cf6 7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
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diff changeset
358 BLOCK_COMMENT("} check_receiver");
3363
167b70ff3abc 6939861: JVM should handle more conversion operations
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parents: 3336
diff changeset
359 }
6266
1d7922586cf6 7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents: 4939
diff changeset
360 if (iid == vmIntrinsics::_linkToSpecial ||
1d7922586cf6 7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents: 4939
diff changeset
361 iid == vmIntrinsics::_linkToStatic) {
1d7922586cf6 7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents: 4939
diff changeset
362 DEBUG_ONLY(temp1_recv_klass = noreg); // these guys didn't load the recv_klass
1d7922586cf6 7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents: 4939
diff changeset
363 }
1d7922586cf6 7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents: 4939
diff changeset
364
1d7922586cf6 7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents: 4939
diff changeset
365 // Live registers at this point:
1d7922586cf6 7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents: 4939
diff changeset
366 // member_reg - MemberName that was the trailing argument
1d7922586cf6 7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents: 4939
diff changeset
367 // temp1_recv_klass - klass of stacked receiver, if needed
1d7922586cf6 7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents: 4939
diff changeset
368 // rsi/r13 - interpreter linkage (if interpreted)
1d7922586cf6 7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents: 4939
diff changeset
369 // rcx, rdx, rsi, rdi, r8, r8 - compiler arguments (if compiled)
1d7922586cf6 7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents: 4939
diff changeset
370
6790
2cb2f30450c7 7196262: JSR 292: java/lang/invoke/PrivateInvokeTest.java fails on solaris-sparc
twisti
parents: 6740
diff changeset
371 Label L_incompatible_class_change_error;
6266
1d7922586cf6 7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents: 4939
diff changeset
372 switch (iid) {
1d7922586cf6 7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents: 4939
diff changeset
373 case vmIntrinsics::_linkToSpecial:
1d7922586cf6 7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents: 4939
diff changeset
374 if (VerifyMethodHandles) {
1d7922586cf6 7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents: 4939
diff changeset
375 verify_ref_kind(_masm, JVM_REF_invokeSpecial, member_reg, temp3);
1d7922586cf6 7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents: 4939
diff changeset
376 }
6725
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6266
diff changeset
377 __ movptr(rbx_method, member_vmtarget);
6266
1d7922586cf6 7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents: 4939
diff changeset
378 break;
1d7922586cf6 7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents: 4939
diff changeset
379
1d7922586cf6 7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents: 4939
diff changeset
380 case vmIntrinsics::_linkToStatic:
1d7922586cf6 7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents: 4939
diff changeset
381 if (VerifyMethodHandles) {
1d7922586cf6 7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents: 4939
diff changeset
382 verify_ref_kind(_masm, JVM_REF_invokeStatic, member_reg, temp3);
1d7922586cf6 7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents: 4939
diff changeset
383 }
6725
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6266
diff changeset
384 __ movptr(rbx_method, member_vmtarget);
6266
1d7922586cf6 7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents: 4939
diff changeset
385 break;
3363
167b70ff3abc 6939861: JVM should handle more conversion operations
never
parents: 3336
diff changeset
386
6266
1d7922586cf6 7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents: 4939
diff changeset
387 case vmIntrinsics::_linkToVirtual:
1d7922586cf6 7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents: 4939
diff changeset
388 {
1d7922586cf6 7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents: 4939
diff changeset
389 // same as TemplateTable::invokevirtual,
1d7922586cf6 7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents: 4939
diff changeset
390 // minus the CP setup and profiling:
1d7922586cf6 7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents: 4939
diff changeset
391
1d7922586cf6 7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents: 4939
diff changeset
392 if (VerifyMethodHandles) {
1d7922586cf6 7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents: 4939
diff changeset
393 verify_ref_kind(_masm, JVM_REF_invokeVirtual, member_reg, temp3);
1d7922586cf6 7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents: 4939
diff changeset
394 }
1d7922586cf6 7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents: 4939
diff changeset
395
1d7922586cf6 7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents: 4939
diff changeset
396 // pick out the vtable index from the MemberName, and then we can discard it:
1d7922586cf6 7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents: 4939
diff changeset
397 Register temp2_index = temp2;
1d7922586cf6 7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents: 4939
diff changeset
398 __ movptr(temp2_index, member_vmindex);
3363
167b70ff3abc 6939861: JVM should handle more conversion operations
never
parents: 3336
diff changeset
399
6266
1d7922586cf6 7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents: 4939
diff changeset
400 if (VerifyMethodHandles) {
1d7922586cf6 7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents: 4939
diff changeset
401 Label L_index_ok;
1d7922586cf6 7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents: 4939
diff changeset
402 __ cmpl(temp2_index, 0);
1d7922586cf6 7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents: 4939
diff changeset
403 __ jcc(Assembler::greaterEqual, L_index_ok);
1d7922586cf6 7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents: 4939
diff changeset
404 __ STOP("no virtual index");
1d7922586cf6 7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents: 4939
diff changeset
405 __ BIND(L_index_ok);
1d7922586cf6 7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents: 4939
diff changeset
406 }
1d7922586cf6 7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents: 4939
diff changeset
407
1d7922586cf6 7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents: 4939
diff changeset
408 // Note: The verifier invariants allow us to ignore MemberName.clazz and vmtarget
1d7922586cf6 7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents: 4939
diff changeset
409 // at this point. And VerifyMethodHandles has already checked clazz, if needed.
1d7922586cf6 7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents: 4939
diff changeset
410
6725
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6266
diff changeset
411 // get target Method* & entry point
6266
1d7922586cf6 7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents: 4939
diff changeset
412 __ lookup_virtual_method(temp1_recv_klass, temp2_index, rbx_method);
1d7922586cf6 7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents: 4939
diff changeset
413 break;
3363
167b70ff3abc 6939861: JVM should handle more conversion operations
never
parents: 3336
diff changeset
414 }
6266
1d7922586cf6 7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents: 4939
diff changeset
415
1d7922586cf6 7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents: 4939
diff changeset
416 case vmIntrinsics::_linkToInterface:
1d7922586cf6 7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents: 4939
diff changeset
417 {
1d7922586cf6 7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents: 4939
diff changeset
418 // same as TemplateTable::invokeinterface
1d7922586cf6 7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents: 4939
diff changeset
419 // (minus the CP setup and profiling, with different argument motion)
1d7922586cf6 7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents: 4939
diff changeset
420 if (VerifyMethodHandles) {
1d7922586cf6 7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents: 4939
diff changeset
421 verify_ref_kind(_masm, JVM_REF_invokeInterface, member_reg, temp3);
1d7922586cf6 7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents: 4939
diff changeset
422 }
1d7922586cf6 7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents: 4939
diff changeset
423
1d7922586cf6 7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents: 4939
diff changeset
424 Register temp3_intf = temp3;
1d7922586cf6 7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents: 4939
diff changeset
425 __ load_heap_oop(temp3_intf, member_clazz);
1d7922586cf6 7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents: 4939
diff changeset
426 load_klass_from_Class(_masm, temp3_intf);
6740
75f33eecc1b3 7196681: NPG: Some JSR 292 tests crash in Windows exception handler
coleenp
parents: 6725
diff changeset
427 __ verify_klass_ptr(temp3_intf);
6266
1d7922586cf6 7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents: 4939
diff changeset
428
1d7922586cf6 7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents: 4939
diff changeset
429 Register rbx_index = rbx_method;
1d7922586cf6 7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents: 4939
diff changeset
430 __ movptr(rbx_index, member_vmindex);
1d7922586cf6 7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents: 4939
diff changeset
431 if (VerifyMethodHandles) {
1d7922586cf6 7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents: 4939
diff changeset
432 Label L;
1d7922586cf6 7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents: 4939
diff changeset
433 __ cmpl(rbx_index, 0);
1d7922586cf6 7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents: 4939
diff changeset
434 __ jcc(Assembler::greaterEqual, L);
1d7922586cf6 7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents: 4939
diff changeset
435 __ STOP("invalid vtable index for MH.invokeInterface");
1d7922586cf6 7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents: 4939
diff changeset
436 __ bind(L);
1d7922586cf6 7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents: 4939
diff changeset
437 }
3363
167b70ff3abc 6939861: JVM should handle more conversion operations
never
parents: 3336
diff changeset
438
6266
1d7922586cf6 7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents: 4939
diff changeset
439 // given intf, index, and recv klass, dispatch to the implementation method
1d7922586cf6 7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents: 4939
diff changeset
440 __ lookup_interface_method(temp1_recv_klass, temp3_intf,
1d7922586cf6 7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents: 4939
diff changeset
441 // note: next two args must be the same:
1d7922586cf6 7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents: 4939
diff changeset
442 rbx_index, rbx_method,
1d7922586cf6 7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents: 4939
diff changeset
443 temp2,
6790
2cb2f30450c7 7196262: JSR 292: java/lang/invoke/PrivateInvokeTest.java fails on solaris-sparc
twisti
parents: 6740
diff changeset
444 L_incompatible_class_change_error);
6266
1d7922586cf6 7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents: 4939
diff changeset
445 break;
1d7922586cf6 7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents: 4939
diff changeset
446 }
1d7922586cf6 7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents: 4939
diff changeset
447
1d7922586cf6 7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents: 4939
diff changeset
448 default:
6790
2cb2f30450c7 7196262: JSR 292: java/lang/invoke/PrivateInvokeTest.java fails on solaris-sparc
twisti
parents: 6740
diff changeset
449 fatal(err_msg_res("unexpected intrinsic %d: %s", iid, vmIntrinsics::name_at(iid)));
6266
1d7922586cf6 7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents: 4939
diff changeset
450 break;
1d7922586cf6 7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents: 4939
diff changeset
451 }
1d7922586cf6 7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents: 4939
diff changeset
452
6790
2cb2f30450c7 7196262: JSR 292: java/lang/invoke/PrivateInvokeTest.java fails on solaris-sparc
twisti
parents: 6740
diff changeset
453 // Live at this point:
2cb2f30450c7 7196262: JSR 292: java/lang/invoke/PrivateInvokeTest.java fails on solaris-sparc
twisti
parents: 6740
diff changeset
454 // rbx_method
2cb2f30450c7 7196262: JSR 292: java/lang/invoke/PrivateInvokeTest.java fails on solaris-sparc
twisti
parents: 6740
diff changeset
455 // rsi/r13 (if interpreted)
6266
1d7922586cf6 7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents: 4939
diff changeset
456
6790
2cb2f30450c7 7196262: JSR 292: java/lang/invoke/PrivateInvokeTest.java fails on solaris-sparc
twisti
parents: 6740
diff changeset
457 // After figuring out which concrete method to call, jump into it.
2cb2f30450c7 7196262: JSR 292: java/lang/invoke/PrivateInvokeTest.java fails on solaris-sparc
twisti
parents: 6740
diff changeset
458 // Note that this works in the interpreter with no data motion.
2cb2f30450c7 7196262: JSR 292: java/lang/invoke/PrivateInvokeTest.java fails on solaris-sparc
twisti
parents: 6740
diff changeset
459 // But the compiled version will require that rcx_recv be shifted out.
2cb2f30450c7 7196262: JSR 292: java/lang/invoke/PrivateInvokeTest.java fails on solaris-sparc
twisti
parents: 6740
diff changeset
460 __ verify_method_ptr(rbx_method);
2cb2f30450c7 7196262: JSR 292: java/lang/invoke/PrivateInvokeTest.java fails on solaris-sparc
twisti
parents: 6740
diff changeset
461 jump_from_method_handle(_masm, rbx_method, temp1, for_compiler_entry);
2cb2f30450c7 7196262: JSR 292: java/lang/invoke/PrivateInvokeTest.java fails on solaris-sparc
twisti
parents: 6740
diff changeset
462
2cb2f30450c7 7196262: JSR 292: java/lang/invoke/PrivateInvokeTest.java fails on solaris-sparc
twisti
parents: 6740
diff changeset
463 if (iid == vmIntrinsics::_linkToInterface) {
2cb2f30450c7 7196262: JSR 292: java/lang/invoke/PrivateInvokeTest.java fails on solaris-sparc
twisti
parents: 6740
diff changeset
464 __ bind(L_incompatible_class_change_error);
2cb2f30450c7 7196262: JSR 292: java/lang/invoke/PrivateInvokeTest.java fails on solaris-sparc
twisti
parents: 6740
diff changeset
465 __ jump(RuntimeAddress(StubRoutines::throw_IncompatibleClassChangeError_entry()));
6266
1d7922586cf6 7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents: 4939
diff changeset
466 }
3363
167b70ff3abc 6939861: JVM should handle more conversion operations
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parents: 3336
diff changeset
467 }
167b70ff3abc 6939861: JVM should handle more conversion operations
never
parents: 3336
diff changeset
468 }
167b70ff3abc 6939861: JVM should handle more conversion operations
never
parents: 3336
diff changeset
469
4824
5dbed2f542ff 7120468: SPARC/x86: use frame::describe to enhance trace_method_handle
bdelsart
parents: 4818
diff changeset
470 #ifndef PRODUCT
710
e5b0439ef4ae 6655638: dynamic languages need method handles
jrose
parents:
diff changeset
471 void trace_method_handle_stub(const char* adaptername,
3363
167b70ff3abc 6939861: JVM should handle more conversion operations
never
parents: 3336
diff changeset
472 oop mh,
167b70ff3abc 6939861: JVM should handle more conversion operations
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parents: 3336
diff changeset
473 intptr_t* saved_regs,
4939
45a1bf98f1bb 7141329: Strange values of stack_size in -XX:+TraceMethodHandles output
twisti
parents: 4874
diff changeset
474 intptr_t* entry_sp) {
710
e5b0439ef4ae 6655638: dynamic languages need method handles
jrose
parents:
diff changeset
475 // called as a leaf from native code: do not block the JVM!
6266
1d7922586cf6 7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents: 4939
diff changeset
476 bool has_mh = (strstr(adaptername, "/static") == NULL &&
1d7922586cf6 7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents: 4939
diff changeset
477 strstr(adaptername, "linkTo") == NULL); // static linkers don't have MH
4939
45a1bf98f1bb 7141329: Strange values of stack_size in -XX:+TraceMethodHandles output
twisti
parents: 4874
diff changeset
478 const char* mh_reg_name = has_mh ? "rcx_mh" : "rcx";
6266
1d7922586cf6 7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
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diff changeset
479 tty->print_cr("MH %s %s="PTR_FORMAT" sp="PTR_FORMAT,
1d7922586cf6 7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents: 4939
diff changeset
480 adaptername, mh_reg_name,
1d7922586cf6 7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents: 4939
diff changeset
481 mh, entry_sp);
4824
5dbed2f542ff 7120468: SPARC/x86: use frame::describe to enhance trace_method_handle
bdelsart
parents: 4818
diff changeset
482
1793
d257356e35f0 6939224: MethodHandle.invokeGeneric needs to perform the correct set of conversions
jrose
parents: 1552
diff changeset
483 if (Verbose) {
4939
45a1bf98f1bb 7141329: Strange values of stack_size in -XX:+TraceMethodHandles output
twisti
parents: 4874
diff changeset
484 tty->print_cr("Registers:");
45a1bf98f1bb 7141329: Strange values of stack_size in -XX:+TraceMethodHandles output
twisti
parents: 4874
diff changeset
485 const int saved_regs_count = RegisterImpl::number_of_registers;
45a1bf98f1bb 7141329: Strange values of stack_size in -XX:+TraceMethodHandles output
twisti
parents: 4874
diff changeset
486 for (int i = 0; i < saved_regs_count; i++) {
45a1bf98f1bb 7141329: Strange values of stack_size in -XX:+TraceMethodHandles output
twisti
parents: 4874
diff changeset
487 Register r = as_Register(i);
45a1bf98f1bb 7141329: Strange values of stack_size in -XX:+TraceMethodHandles output
twisti
parents: 4874
diff changeset
488 // The registers are stored in reverse order on the stack (by pusha).
45a1bf98f1bb 7141329: Strange values of stack_size in -XX:+TraceMethodHandles output
twisti
parents: 4874
diff changeset
489 tty->print("%3s=" PTR_FORMAT, r->name(), saved_regs[((saved_regs_count - 1) - i)]);
45a1bf98f1bb 7141329: Strange values of stack_size in -XX:+TraceMethodHandles output
twisti
parents: 4874
diff changeset
490 if ((i + 1) % 4 == 0) {
3363
167b70ff3abc 6939861: JVM should handle more conversion operations
never
parents: 3336
diff changeset
491 tty->cr();
4939
45a1bf98f1bb 7141329: Strange values of stack_size in -XX:+TraceMethodHandles output
twisti
parents: 4874
diff changeset
492 } else {
45a1bf98f1bb 7141329: Strange values of stack_size in -XX:+TraceMethodHandles output
twisti
parents: 4874
diff changeset
493 tty->print(", ");
3363
167b70ff3abc 6939861: JVM should handle more conversion operations
never
parents: 3336
diff changeset
494 }
167b70ff3abc 6939861: JVM should handle more conversion operations
never
parents: 3336
diff changeset
495 }
167b70ff3abc 6939861: JVM should handle more conversion operations
never
parents: 3336
diff changeset
496 tty->cr();
4824
5dbed2f542ff 7120468: SPARC/x86: use frame::describe to enhance trace_method_handle
bdelsart
parents: 4818
diff changeset
497
5dbed2f542ff 7120468: SPARC/x86: use frame::describe to enhance trace_method_handle
bdelsart
parents: 4818
diff changeset
498 {
5dbed2f542ff 7120468: SPARC/x86: use frame::describe to enhance trace_method_handle
bdelsart
parents: 4818
diff changeset
499 // dumping last frame with frame::describe
5dbed2f542ff 7120468: SPARC/x86: use frame::describe to enhance trace_method_handle
bdelsart
parents: 4818
diff changeset
500
5dbed2f542ff 7120468: SPARC/x86: use frame::describe to enhance trace_method_handle
bdelsart
parents: 4818
diff changeset
501 JavaThread* p = JavaThread::active();
5dbed2f542ff 7120468: SPARC/x86: use frame::describe to enhance trace_method_handle
bdelsart
parents: 4818
diff changeset
502
5dbed2f542ff 7120468: SPARC/x86: use frame::describe to enhance trace_method_handle
bdelsart
parents: 4818
diff changeset
503 ResourceMark rm;
5dbed2f542ff 7120468: SPARC/x86: use frame::describe to enhance trace_method_handle
bdelsart
parents: 4818
diff changeset
504 PRESERVE_EXCEPTION_MARK; // may not be needed by safer and unexpensive here
5dbed2f542ff 7120468: SPARC/x86: use frame::describe to enhance trace_method_handle
bdelsart
parents: 4818
diff changeset
505 FrameValues values;
5dbed2f542ff 7120468: SPARC/x86: use frame::describe to enhance trace_method_handle
bdelsart
parents: 4818
diff changeset
506
5dbed2f542ff 7120468: SPARC/x86: use frame::describe to enhance trace_method_handle
bdelsart
parents: 4818
diff changeset
507 // Note: We want to allow trace_method_handle from any call site.
5dbed2f542ff 7120468: SPARC/x86: use frame::describe to enhance trace_method_handle
bdelsart
parents: 4818
diff changeset
508 // While trace_method_handle creates a frame, it may be entered
5dbed2f542ff 7120468: SPARC/x86: use frame::describe to enhance trace_method_handle
bdelsart
parents: 4818
diff changeset
509 // without a PC on the stack top (e.g. not just after a call).
5dbed2f542ff 7120468: SPARC/x86: use frame::describe to enhance trace_method_handle
bdelsart
parents: 4818
diff changeset
510 // Walking that frame could lead to failures due to that invalid PC.
5dbed2f542ff 7120468: SPARC/x86: use frame::describe to enhance trace_method_handle
bdelsart
parents: 4818
diff changeset
511 // => carefully detect that frame when doing the stack walking
5dbed2f542ff 7120468: SPARC/x86: use frame::describe to enhance trace_method_handle
bdelsart
parents: 4818
diff changeset
512
5dbed2f542ff 7120468: SPARC/x86: use frame::describe to enhance trace_method_handle
bdelsart
parents: 4818
diff changeset
513 // Current C frame
5dbed2f542ff 7120468: SPARC/x86: use frame::describe to enhance trace_method_handle
bdelsart
parents: 4818
diff changeset
514 frame cur_frame = os::current_frame();
5dbed2f542ff 7120468: SPARC/x86: use frame::describe to enhance trace_method_handle
bdelsart
parents: 4818
diff changeset
515
5dbed2f542ff 7120468: SPARC/x86: use frame::describe to enhance trace_method_handle
bdelsart
parents: 4818
diff changeset
516 // Robust search of trace_calling_frame (independant of inlining).
5dbed2f542ff 7120468: SPARC/x86: use frame::describe to enhance trace_method_handle
bdelsart
parents: 4818
diff changeset
517 // Assumes saved_regs comes from a pusha in the trace_calling_frame.
5dbed2f542ff 7120468: SPARC/x86: use frame::describe to enhance trace_method_handle
bdelsart
parents: 4818
diff changeset
518 assert(cur_frame.sp() < saved_regs, "registers not saved on stack ?");
5dbed2f542ff 7120468: SPARC/x86: use frame::describe to enhance trace_method_handle
bdelsart
parents: 4818
diff changeset
519 frame trace_calling_frame = os::get_sender_for_C_frame(&cur_frame);
5dbed2f542ff 7120468: SPARC/x86: use frame::describe to enhance trace_method_handle
bdelsart
parents: 4818
diff changeset
520 while (trace_calling_frame.fp() < saved_regs) {
5dbed2f542ff 7120468: SPARC/x86: use frame::describe to enhance trace_method_handle
bdelsart
parents: 4818
diff changeset
521 trace_calling_frame = os::get_sender_for_C_frame(&trace_calling_frame);
5dbed2f542ff 7120468: SPARC/x86: use frame::describe to enhance trace_method_handle
bdelsart
parents: 4818
diff changeset
522 }
5dbed2f542ff 7120468: SPARC/x86: use frame::describe to enhance trace_method_handle
bdelsart
parents: 4818
diff changeset
523
5dbed2f542ff 7120468: SPARC/x86: use frame::describe to enhance trace_method_handle
bdelsart
parents: 4818
diff changeset
524 // safely create a frame and call frame::describe
5dbed2f542ff 7120468: SPARC/x86: use frame::describe to enhance trace_method_handle
bdelsart
parents: 4818
diff changeset
525 intptr_t *dump_sp = trace_calling_frame.sender_sp();
5dbed2f542ff 7120468: SPARC/x86: use frame::describe to enhance trace_method_handle
bdelsart
parents: 4818
diff changeset
526 intptr_t *dump_fp = trace_calling_frame.link();
5dbed2f542ff 7120468: SPARC/x86: use frame::describe to enhance trace_method_handle
bdelsart
parents: 4818
diff changeset
527
5dbed2f542ff 7120468: SPARC/x86: use frame::describe to enhance trace_method_handle
bdelsart
parents: 4818
diff changeset
528 bool walkable = has_mh; // whether the traced frame shoud be walkable
5dbed2f542ff 7120468: SPARC/x86: use frame::describe to enhance trace_method_handle
bdelsart
parents: 4818
diff changeset
529
5dbed2f542ff 7120468: SPARC/x86: use frame::describe to enhance trace_method_handle
bdelsart
parents: 4818
diff changeset
530 if (walkable) {
5dbed2f542ff 7120468: SPARC/x86: use frame::describe to enhance trace_method_handle
bdelsart
parents: 4818
diff changeset
531 // The previous definition of walkable may have to be refined
5dbed2f542ff 7120468: SPARC/x86: use frame::describe to enhance trace_method_handle
bdelsart
parents: 4818
diff changeset
532 // if new call sites cause the next frame constructor to start
5dbed2f542ff 7120468: SPARC/x86: use frame::describe to enhance trace_method_handle
bdelsart
parents: 4818
diff changeset
533 // failing. Alternatively, frame constructors could be
5dbed2f542ff 7120468: SPARC/x86: use frame::describe to enhance trace_method_handle
bdelsart
parents: 4818
diff changeset
534 // modified to support the current or future non walkable
5dbed2f542ff 7120468: SPARC/x86: use frame::describe to enhance trace_method_handle
bdelsart
parents: 4818
diff changeset
535 // frames (but this is more intrusive and is not considered as
5dbed2f542ff 7120468: SPARC/x86: use frame::describe to enhance trace_method_handle
bdelsart
parents: 4818
diff changeset
536 // part of this RFE, which will instead use a simpler output).
5dbed2f542ff 7120468: SPARC/x86: use frame::describe to enhance trace_method_handle
bdelsart
parents: 4818
diff changeset
537 frame dump_frame = frame(dump_sp, dump_fp);
5dbed2f542ff 7120468: SPARC/x86: use frame::describe to enhance trace_method_handle
bdelsart
parents: 4818
diff changeset
538 dump_frame.describe(values, 1);
5dbed2f542ff 7120468: SPARC/x86: use frame::describe to enhance trace_method_handle
bdelsart
parents: 4818
diff changeset
539 } else {
5dbed2f542ff 7120468: SPARC/x86: use frame::describe to enhance trace_method_handle
bdelsart
parents: 4818
diff changeset
540 // Stack may not be walkable (invalid PC above FP):
5dbed2f542ff 7120468: SPARC/x86: use frame::describe to enhance trace_method_handle
bdelsart
parents: 4818
diff changeset
541 // Add descriptions without building a Java frame to avoid issues
5dbed2f542ff 7120468: SPARC/x86: use frame::describe to enhance trace_method_handle
bdelsart
parents: 4818
diff changeset
542 values.describe(-1, dump_fp, "fp for #1 <not parsed, cannot trust pc>");
5dbed2f542ff 7120468: SPARC/x86: use frame::describe to enhance trace_method_handle
bdelsart
parents: 4818
diff changeset
543 values.describe(-1, dump_sp, "sp for #1");
5dbed2f542ff 7120468: SPARC/x86: use frame::describe to enhance trace_method_handle
bdelsart
parents: 4818
diff changeset
544 }
6266
1d7922586cf6 7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents: 4939
diff changeset
545 values.describe(-1, entry_sp, "raw top of stack");
4824
5dbed2f542ff 7120468: SPARC/x86: use frame::describe to enhance trace_method_handle
bdelsart
parents: 4818
diff changeset
546
4939
45a1bf98f1bb 7141329: Strange values of stack_size in -XX:+TraceMethodHandles output
twisti
parents: 4874
diff changeset
547 tty->print_cr("Stack layout:");
4824
5dbed2f542ff 7120468: SPARC/x86: use frame::describe to enhance trace_method_handle
bdelsart
parents: 4818
diff changeset
548 values.print(p);
3363
167b70ff3abc 6939861: JVM should handle more conversion operations
never
parents: 3336
diff changeset
549 }
6266
1d7922586cf6 7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents: 4939
diff changeset
550 if (has_mh && mh->is_oop()) {
1d7922586cf6 7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents: 4939
diff changeset
551 mh->print();
1d7922586cf6 7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents: 4939
diff changeset
552 if (java_lang_invoke_MethodHandle::is_instance(mh)) {
1d7922586cf6 7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents: 4939
diff changeset
553 if (java_lang_invoke_MethodHandle::form_offset_in_bytes() != 0)
1d7922586cf6 7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents: 4939
diff changeset
554 java_lang_invoke_MethodHandle::form(mh)->print();
1d7922586cf6 7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents: 4939
diff changeset
555 }
1d7922586cf6 7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents: 4939
diff changeset
556 }
1793
d257356e35f0 6939224: MethodHandle.invokeGeneric needs to perform the correct set of conversions
jrose
parents: 1552
diff changeset
557 }
d257356e35f0 6939224: MethodHandle.invokeGeneric needs to perform the correct set of conversions
jrose
parents: 1552
diff changeset
558 }
3363
167b70ff3abc 6939861: JVM should handle more conversion operations
never
parents: 3336
diff changeset
559
167b70ff3abc 6939861: JVM should handle more conversion operations
never
parents: 3336
diff changeset
560 // The stub wraps the arguments in a struct on the stack to avoid
167b70ff3abc 6939861: JVM should handle more conversion operations
never
parents: 3336
diff changeset
561 // dealing with the different calling conventions for passing 6
167b70ff3abc 6939861: JVM should handle more conversion operations
never
parents: 3336
diff changeset
562 // arguments.
167b70ff3abc 6939861: JVM should handle more conversion operations
never
parents: 3336
diff changeset
563 struct MethodHandleStubArguments {
167b70ff3abc 6939861: JVM should handle more conversion operations
never
parents: 3336
diff changeset
564 const char* adaptername;
167b70ff3abc 6939861: JVM should handle more conversion operations
never
parents: 3336
diff changeset
565 oopDesc* mh;
167b70ff3abc 6939861: JVM should handle more conversion operations
never
parents: 3336
diff changeset
566 intptr_t* saved_regs;
167b70ff3abc 6939861: JVM should handle more conversion operations
never
parents: 3336
diff changeset
567 intptr_t* entry_sp;
167b70ff3abc 6939861: JVM should handle more conversion operations
never
parents: 3336
diff changeset
568 };
167b70ff3abc 6939861: JVM should handle more conversion operations
never
parents: 3336
diff changeset
569 void trace_method_handle_stub_wrapper(MethodHandleStubArguments* args) {
167b70ff3abc 6939861: JVM should handle more conversion operations
never
parents: 3336
diff changeset
570 trace_method_handle_stub(args->adaptername,
167b70ff3abc 6939861: JVM should handle more conversion operations
never
parents: 3336
diff changeset
571 args->mh,
167b70ff3abc 6939861: JVM should handle more conversion operations
never
parents: 3336
diff changeset
572 args->saved_regs,
4939
45a1bf98f1bb 7141329: Strange values of stack_size in -XX:+TraceMethodHandles output
twisti
parents: 4874
diff changeset
573 args->entry_sp);
3363
167b70ff3abc 6939861: JVM should handle more conversion operations
never
parents: 3336
diff changeset
574 }
167b70ff3abc 6939861: JVM should handle more conversion operations
never
parents: 3336
diff changeset
575
1793
d257356e35f0 6939224: MethodHandle.invokeGeneric needs to perform the correct set of conversions
jrose
parents: 1552
diff changeset
576 void MethodHandles::trace_method_handle(MacroAssembler* _masm, const char* adaptername) {
d257356e35f0 6939224: MethodHandle.invokeGeneric needs to perform the correct set of conversions
jrose
parents: 1552
diff changeset
577 if (!TraceMethodHandles) return;
d257356e35f0 6939224: MethodHandle.invokeGeneric needs to perform the correct set of conversions
jrose
parents: 1552
diff changeset
578 BLOCK_COMMENT("trace_method_handle {");
4824
5dbed2f542ff 7120468: SPARC/x86: use frame::describe to enhance trace_method_handle
bdelsart
parents: 4818
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579 __ enter();
5dbed2f542ff 7120468: SPARC/x86: use frame::describe to enhance trace_method_handle
bdelsart
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580 __ andptr(rsp, -16); // align stack if needed for FPU state
1793
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jrose
parents: 1552
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581 __ pusha();
4824
5dbed2f542ff 7120468: SPARC/x86: use frame::describe to enhance trace_method_handle
bdelsart
parents: 4818
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582 __ mov(rbx, rsp); // for retreiving saved_regs
5dbed2f542ff 7120468: SPARC/x86: use frame::describe to enhance trace_method_handle
bdelsart
parents: 4818
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583 // Note: saved_regs must be in the entered frame for the
5dbed2f542ff 7120468: SPARC/x86: use frame::describe to enhance trace_method_handle
bdelsart
parents: 4818
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584 // robust stack walking implemented in trace_method_handle_stub.
5dbed2f542ff 7120468: SPARC/x86: use frame::describe to enhance trace_method_handle
bdelsart
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585
5dbed2f542ff 7120468: SPARC/x86: use frame::describe to enhance trace_method_handle
bdelsart
parents: 4818
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586 // save FP result, valid at some call sites (adapter_opt_return_float, ...)
5dbed2f542ff 7120468: SPARC/x86: use frame::describe to enhance trace_method_handle
bdelsart
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587 __ increment(rsp, -2 * wordSize);
5dbed2f542ff 7120468: SPARC/x86: use frame::describe to enhance trace_method_handle
bdelsart
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588 if (UseSSE >= 2) {
5dbed2f542ff 7120468: SPARC/x86: use frame::describe to enhance trace_method_handle
bdelsart
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589 __ movdbl(Address(rsp, 0), xmm0);
5dbed2f542ff 7120468: SPARC/x86: use frame::describe to enhance trace_method_handle
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590 } else if (UseSSE == 1) {
5dbed2f542ff 7120468: SPARC/x86: use frame::describe to enhance trace_method_handle
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591 __ movflt(Address(rsp, 0), xmm0);
5dbed2f542ff 7120468: SPARC/x86: use frame::describe to enhance trace_method_handle
bdelsart
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diff changeset
592 } else {
5dbed2f542ff 7120468: SPARC/x86: use frame::describe to enhance trace_method_handle
bdelsart
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593 __ fst_d(Address(rsp, 0));
5dbed2f542ff 7120468: SPARC/x86: use frame::describe to enhance trace_method_handle
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594 }
5dbed2f542ff 7120468: SPARC/x86: use frame::describe to enhance trace_method_handle
bdelsart
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595
4939
45a1bf98f1bb 7141329: Strange values of stack_size in -XX:+TraceMethodHandles output
twisti
parents: 4874
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596 // Incoming state:
3336
2e038ad0c1d0 7009361: JSR 292 Invalid value on stack on solaris-sparc with -Xcomp
never
parents: 2357
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597 // rcx: method handle
4939
45a1bf98f1bb 7141329: Strange values of stack_size in -XX:+TraceMethodHandles output
twisti
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598 //
45a1bf98f1bb 7141329: Strange values of stack_size in -XX:+TraceMethodHandles output
twisti
parents: 4874
diff changeset
599 // To avoid calling convention issues, build a record on the stack
45a1bf98f1bb 7141329: Strange values of stack_size in -XX:+TraceMethodHandles output
twisti
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600 // and pass the pointer to that instead.
4824
5dbed2f542ff 7120468: SPARC/x86: use frame::describe to enhance trace_method_handle
bdelsart
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601 __ push(rbp); // entry_sp (with extra align space)
3363
167b70ff3abc 6939861: JVM should handle more conversion operations
never
parents: 3336
diff changeset
602 __ push(rbx); // pusha saved_regs
167b70ff3abc 6939861: JVM should handle more conversion operations
never
parents: 3336
diff changeset
603 __ push(rcx); // mh
4824
5dbed2f542ff 7120468: SPARC/x86: use frame::describe to enhance trace_method_handle
bdelsart
parents: 4818
diff changeset
604 __ push(rcx); // slot for adaptername
3363
167b70ff3abc 6939861: JVM should handle more conversion operations
never
parents: 3336
diff changeset
605 __ movptr(Address(rsp, 0), (intptr_t) adaptername);
167b70ff3abc 6939861: JVM should handle more conversion operations
never
parents: 3336
diff changeset
606 __ super_call_VM_leaf(CAST_FROM_FN_PTR(address, trace_method_handle_stub_wrapper), rsp);
4939
45a1bf98f1bb 7141329: Strange values of stack_size in -XX:+TraceMethodHandles output
twisti
parents: 4874
diff changeset
607 __ increment(rsp, sizeof(MethodHandleStubArguments));
4824
5dbed2f542ff 7120468: SPARC/x86: use frame::describe to enhance trace_method_handle
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diff changeset
608
5dbed2f542ff 7120468: SPARC/x86: use frame::describe to enhance trace_method_handle
bdelsart
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diff changeset
609 if (UseSSE >= 2) {
5dbed2f542ff 7120468: SPARC/x86: use frame::describe to enhance trace_method_handle
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parents: 4818
diff changeset
610 __ movdbl(xmm0, Address(rsp, 0));
5dbed2f542ff 7120468: SPARC/x86: use frame::describe to enhance trace_method_handle
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diff changeset
611 } else if (UseSSE == 1) {
5dbed2f542ff 7120468: SPARC/x86: use frame::describe to enhance trace_method_handle
bdelsart
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diff changeset
612 __ movflt(xmm0, Address(rsp, 0));
5dbed2f542ff 7120468: SPARC/x86: use frame::describe to enhance trace_method_handle
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diff changeset
613 } else {
5dbed2f542ff 7120468: SPARC/x86: use frame::describe to enhance trace_method_handle
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614 __ fld_d(Address(rsp, 0));
5dbed2f542ff 7120468: SPARC/x86: use frame::describe to enhance trace_method_handle
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615 }
5dbed2f542ff 7120468: SPARC/x86: use frame::describe to enhance trace_method_handle
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616 __ increment(rsp, 2 * wordSize);
5dbed2f542ff 7120468: SPARC/x86: use frame::describe to enhance trace_method_handle
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617
1793
d257356e35f0 6939224: MethodHandle.invokeGeneric needs to perform the correct set of conversions
jrose
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618 __ popa();
4824
5dbed2f542ff 7120468: SPARC/x86: use frame::describe to enhance trace_method_handle
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619 __ leave();
1793
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jrose
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620 BLOCK_COMMENT("} trace_method_handle");
710
e5b0439ef4ae 6655638: dynamic languages need method handles
jrose
parents:
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621 }
e5b0439ef4ae 6655638: dynamic languages need method handles
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622 #endif //PRODUCT