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0
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1 /*
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2 * Copyright 1998-2007 Sun Microsystems, Inc. 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 Sun Microsystems, Inc., 4150 Network Circle, Santa Clara,
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20 * CA 95054 USA or visit www.sun.com if you need additional information or
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21 * have any questions.
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22 *
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23 */
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24
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25 #include "incls/_precompiled.incl"
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26 #include "incls/_runtime.cpp.incl"
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27
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28
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29 // For debugging purposes:
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30 // To force FullGCALot inside a runtime function, add the following two lines
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31 //
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32 // Universe::release_fullgc_alot_dummy();
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33 // MarkSweep::invoke(0, "Debugging");
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34 //
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35 // At command line specify the parameters: -XX:+FullGCALot -XX:FullGCALotStart=100000000
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36
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37
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38
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39
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40 // Compiled code entry points
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41 address OptoRuntime::_new_instance_Java = NULL;
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42 address OptoRuntime::_new_array_Java = NULL;
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43 address OptoRuntime::_multianewarray2_Java = NULL;
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44 address OptoRuntime::_multianewarray3_Java = NULL;
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45 address OptoRuntime::_multianewarray4_Java = NULL;
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46 address OptoRuntime::_multianewarray5_Java = NULL;
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342
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47 address OptoRuntime::_g1_wb_pre_Java = NULL;
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48 address OptoRuntime::_g1_wb_post_Java = NULL;
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0
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49 address OptoRuntime::_vtable_must_compile_Java = NULL;
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50 address OptoRuntime::_complete_monitor_locking_Java = NULL;
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51 address OptoRuntime::_rethrow_Java = NULL;
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52
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53 address OptoRuntime::_slow_arraycopy_Java = NULL;
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54 address OptoRuntime::_register_finalizer_Java = NULL;
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55
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56 # ifdef ENABLE_ZAP_DEAD_LOCALS
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57 address OptoRuntime::_zap_dead_Java_locals_Java = NULL;
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58 address OptoRuntime::_zap_dead_native_locals_Java = NULL;
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59 # endif
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60
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61
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62 // This should be called in an assertion at the start of OptoRuntime routines
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63 // which are entered from compiled code (all of them)
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64 #ifndef PRODUCT
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65 static bool check_compiled_frame(JavaThread* thread) {
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66 assert(thread->last_frame().is_runtime_frame(), "cannot call runtime directly from compiled code");
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67 #ifdef ASSERT
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68 RegisterMap map(thread, false);
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69 frame caller = thread->last_frame().sender(&map);
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70 assert(caller.is_compiled_frame(), "not being called from compiled like code");
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71 #endif /* ASSERT */
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72 return true;
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73 }
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74 #endif
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75
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76
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77 #define gen(env, var, type_func_gen, c_func, fancy_jump, pass_tls, save_arg_regs, return_pc) \
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78 var = generate_stub(env, type_func_gen, CAST_FROM_FN_PTR(address, c_func), #var, fancy_jump, pass_tls, save_arg_regs, return_pc)
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79
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80 void OptoRuntime::generate(ciEnv* env) {
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81
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82 generate_exception_blob();
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83
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84 // Note: tls: Means fetching the return oop out of the thread-local storage
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85 //
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86 // variable/name type-function-gen , runtime method ,fncy_jp, tls,save_args,retpc
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87 // -------------------------------------------------------------------------------------------------------------------------------
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88 gen(env, _new_instance_Java , new_instance_Type , new_instance_C , 0 , true , false, false);
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89 gen(env, _new_array_Java , new_array_Type , new_array_C , 0 , true , false, false);
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90 gen(env, _multianewarray2_Java , multianewarray2_Type , multianewarray2_C , 0 , true , false, false);
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91 gen(env, _multianewarray3_Java , multianewarray3_Type , multianewarray3_C , 0 , true , false, false);
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92 gen(env, _multianewarray4_Java , multianewarray4_Type , multianewarray4_C , 0 , true , false, false);
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93 gen(env, _multianewarray5_Java , multianewarray5_Type , multianewarray5_C , 0 , true , false, false);
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342
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94 gen(env, _g1_wb_pre_Java , g1_wb_pre_Type , SharedRuntime::g1_wb_pre , 0 , false, false, false);
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95 gen(env, _g1_wb_post_Java , g1_wb_post_Type , SharedRuntime::g1_wb_post , 0 , false, false, false);
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0
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96 gen(env, _complete_monitor_locking_Java , complete_monitor_enter_Type , SharedRuntime::complete_monitor_locking_C , 0 , false, false, false);
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97 gen(env, _rethrow_Java , rethrow_Type , rethrow_C , 2 , true , false, true );
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98
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99 gen(env, _slow_arraycopy_Java , slow_arraycopy_Type , SharedRuntime::slow_arraycopy_C , 0 , false, false, false);
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100 gen(env, _register_finalizer_Java , register_finalizer_Type , register_finalizer , 0 , false, false, false);
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101
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102 # ifdef ENABLE_ZAP_DEAD_LOCALS
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103 gen(env, _zap_dead_Java_locals_Java , zap_dead_locals_Type , zap_dead_Java_locals_C , 0 , false, true , false );
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104 gen(env, _zap_dead_native_locals_Java , zap_dead_locals_Type , zap_dead_native_locals_C , 0 , false, true , false );
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105 # endif
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106
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107 }
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108
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109 #undef gen
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110
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111
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112 // Helper method to do generation of RunTimeStub's
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113 address OptoRuntime::generate_stub( ciEnv* env,
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114 TypeFunc_generator gen, address C_function,
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115 const char *name, int is_fancy_jump,
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116 bool pass_tls,
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117 bool save_argument_registers,
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118 bool return_pc ) {
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119 ResourceMark rm;
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120 Compile C( env, gen, C_function, name, is_fancy_jump, pass_tls, save_argument_registers, return_pc );
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121 return C.stub_entry_point();
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122 }
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123
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124 const char* OptoRuntime::stub_name(address entry) {
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125 #ifndef PRODUCT
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126 CodeBlob* cb = CodeCache::find_blob(entry);
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127 RuntimeStub* rs =(RuntimeStub *)cb;
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128 assert(rs != NULL && rs->is_runtime_stub(), "not a runtime stub");
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129 return rs->name();
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130 #else
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131 // Fast implementation for product mode (maybe it should be inlined too)
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132 return "runtime stub";
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133 #endif
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134 }
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135
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136
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137 //=============================================================================
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138 // Opto compiler runtime routines
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139 //=============================================================================
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140
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141
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142 //=============================allocation======================================
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143 // We failed the fast-path allocation. Now we need to do a scavenge or GC
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144 // and try allocation again.
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145
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146 void OptoRuntime::do_eager_card_mark(JavaThread* thread) {
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147 // After any safepoint, just before going back to compiled code,
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148 // we perform a card mark. This lets the compiled code omit
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149 // card marks for initialization of new objects.
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150 // Keep this code consistent with GraphKit::store_barrier.
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151
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152 oop new_obj = thread->vm_result();
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153 if (new_obj == NULL) return;
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154
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155 assert(Universe::heap()->can_elide_tlab_store_barriers(),
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156 "compiler must check this first");
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157 new_obj = Universe::heap()->new_store_barrier(new_obj);
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158 thread->set_vm_result(new_obj);
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159 }
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160
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161 // object allocation
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162 JRT_BLOCK_ENTRY(void, OptoRuntime::new_instance_C(klassOopDesc* klass, JavaThread* thread))
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163 JRT_BLOCK;
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164 #ifndef PRODUCT
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165 SharedRuntime::_new_instance_ctr++; // new instance requires GC
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166 #endif
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167 assert(check_compiled_frame(thread), "incorrect caller");
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168
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169 // These checks are cheap to make and support reflective allocation.
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170 int lh = Klass::cast(klass)->layout_helper();
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171 if (Klass::layout_helper_needs_slow_path(lh)
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172 || !instanceKlass::cast(klass)->is_initialized()) {
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173 KlassHandle kh(THREAD, klass);
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174 kh->check_valid_for_instantiation(false, THREAD);
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175 if (!HAS_PENDING_EXCEPTION) {
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176 instanceKlass::cast(kh())->initialize(THREAD);
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177 }
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178 if (!HAS_PENDING_EXCEPTION) {
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179 klass = kh();
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180 } else {
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181 klass = NULL;
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182 }
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183 }
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184
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185 if (klass != NULL) {
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186 // Scavenge and allocate an instance.
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187 oop result = instanceKlass::cast(klass)->allocate_instance(THREAD);
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188 thread->set_vm_result(result);
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189
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190 // Pass oops back through thread local storage. Our apparent type to Java
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191 // is that we return an oop, but we can block on exit from this routine and
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192 // a GC can trash the oop in C's return register. The generated stub will
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193 // fetch the oop from TLS after any possible GC.
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194 }
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195
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196 deoptimize_caller_frame(thread, HAS_PENDING_EXCEPTION);
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197 JRT_BLOCK_END;
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198
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199 if (GraphKit::use_ReduceInitialCardMarks()) {
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200 // do them now so we don't have to do them on the fast path
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201 do_eager_card_mark(thread);
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202 }
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203 JRT_END
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204
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205
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206 // array allocation
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207 JRT_BLOCK_ENTRY(void, OptoRuntime::new_array_C(klassOopDesc* array_type, int len, JavaThread *thread))
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208 JRT_BLOCK;
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209 #ifndef PRODUCT
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210 SharedRuntime::_new_array_ctr++; // new array requires GC
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211 #endif
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212 assert(check_compiled_frame(thread), "incorrect caller");
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213
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214 // Scavenge and allocate an instance.
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215 oop result;
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216
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217 if (Klass::cast(array_type)->oop_is_typeArray()) {
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218 // The oopFactory likes to work with the element type.
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219 // (We could bypass the oopFactory, since it doesn't add much value.)
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220 BasicType elem_type = typeArrayKlass::cast(array_type)->element_type();
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221 result = oopFactory::new_typeArray(elem_type, len, THREAD);
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222 } else {
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223 // Although the oopFactory likes to work with the elem_type,
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224 // the compiler prefers the array_type, since it must already have
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225 // that latter value in hand for the fast path.
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226 klassOopDesc* elem_type = objArrayKlass::cast(array_type)->element_klass();
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227 result = oopFactory::new_objArray(elem_type, len, THREAD);
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228 }
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229
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230 // Pass oops back through thread local storage. Our apparent type to Java
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231 // is that we return an oop, but we can block on exit from this routine and
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232 // a GC can trash the oop in C's return register. The generated stub will
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233 // fetch the oop from TLS after any possible GC.
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234 deoptimize_caller_frame(thread, HAS_PENDING_EXCEPTION);
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235 thread->set_vm_result(result);
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236 JRT_BLOCK_END;
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237
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238 if (GraphKit::use_ReduceInitialCardMarks()) {
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239 // do them now so we don't have to do them on the fast path
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240 do_eager_card_mark(thread);
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241 }
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242 JRT_END
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243
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244 // Note: multianewarray for one dimension is handled inline by GraphKit::new_array.
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245
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246 // multianewarray for 2 dimensions
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247 JRT_ENTRY(void, OptoRuntime::multianewarray2_C(klassOopDesc* elem_type, int len1, int len2, JavaThread *thread))
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248 #ifndef PRODUCT
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249 SharedRuntime::_multi2_ctr++; // multianewarray for 1 dimension
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250 #endif
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251 assert(check_compiled_frame(thread), "incorrect caller");
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252 assert(oop(elem_type)->is_klass(), "not a class");
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253 jint dims[2];
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254 dims[0] = len1;
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255 dims[1] = len2;
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256 oop obj = arrayKlass::cast(elem_type)->multi_allocate(2, dims, THREAD);
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257 deoptimize_caller_frame(thread, HAS_PENDING_EXCEPTION);
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258 thread->set_vm_result(obj);
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259 JRT_END
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260
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261 // multianewarray for 3 dimensions
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262 JRT_ENTRY(void, OptoRuntime::multianewarray3_C(klassOopDesc* elem_type, int len1, int len2, int len3, JavaThread *thread))
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263 #ifndef PRODUCT
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264 SharedRuntime::_multi3_ctr++; // multianewarray for 1 dimension
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265 #endif
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266 assert(check_compiled_frame(thread), "incorrect caller");
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267 assert(oop(elem_type)->is_klass(), "not a class");
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268 jint dims[3];
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269 dims[0] = len1;
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270 dims[1] = len2;
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271 dims[2] = len3;
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272 oop obj = arrayKlass::cast(elem_type)->multi_allocate(3, dims, THREAD);
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273 deoptimize_caller_frame(thread, HAS_PENDING_EXCEPTION);
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274 thread->set_vm_result(obj);
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275 JRT_END
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276
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277 // multianewarray for 4 dimensions
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278 JRT_ENTRY(void, OptoRuntime::multianewarray4_C(klassOopDesc* elem_type, int len1, int len2, int len3, int len4, JavaThread *thread))
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279 #ifndef PRODUCT
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280 SharedRuntime::_multi4_ctr++; // multianewarray for 1 dimension
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281 #endif
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282 assert(check_compiled_frame(thread), "incorrect caller");
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283 assert(oop(elem_type)->is_klass(), "not a class");
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284 jint dims[4];
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285 dims[0] = len1;
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286 dims[1] = len2;
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287 dims[2] = len3;
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288 dims[3] = len4;
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289 oop obj = arrayKlass::cast(elem_type)->multi_allocate(4, dims, THREAD);
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290 deoptimize_caller_frame(thread, HAS_PENDING_EXCEPTION);
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291 thread->set_vm_result(obj);
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292 JRT_END
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293
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294 // multianewarray for 5 dimensions
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295 JRT_ENTRY(void, OptoRuntime::multianewarray5_C(klassOopDesc* elem_type, int len1, int len2, int len3, int len4, int len5, JavaThread *thread))
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296 #ifndef PRODUCT
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297 SharedRuntime::_multi5_ctr++; // multianewarray for 1 dimension
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298 #endif
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299 assert(check_compiled_frame(thread), "incorrect caller");
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300 assert(oop(elem_type)->is_klass(), "not a class");
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301 jint dims[5];
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302 dims[0] = len1;
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303 dims[1] = len2;
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304 dims[2] = len3;
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305 dims[3] = len4;
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306 dims[4] = len5;
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307 oop obj = arrayKlass::cast(elem_type)->multi_allocate(5, dims, THREAD);
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308 deoptimize_caller_frame(thread, HAS_PENDING_EXCEPTION);
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309 thread->set_vm_result(obj);
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310 JRT_END
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311
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312 const TypeFunc *OptoRuntime::new_instance_Type() {
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313 // create input type (domain)
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314 const Type **fields = TypeTuple::fields(1);
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315 fields[TypeFunc::Parms+0] = TypeInstPtr::NOTNULL; // Klass to be allocated
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316 const TypeTuple *domain = TypeTuple::make(TypeFunc::Parms+1, fields);
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317
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318 // create result type (range)
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319 fields = TypeTuple::fields(1);
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320 fields[TypeFunc::Parms+0] = TypeRawPtr::NOTNULL; // Returned oop
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321
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322 const TypeTuple *range = TypeTuple::make(TypeFunc::Parms+1, fields);
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323
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324 return TypeFunc::make(domain, range);
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325 }
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326
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327
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328 const TypeFunc *OptoRuntime::athrow_Type() {
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329 // create input type (domain)
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330 const Type **fields = TypeTuple::fields(1);
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331 fields[TypeFunc::Parms+0] = TypeInstPtr::NOTNULL; // Klass to be allocated
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332 const TypeTuple *domain = TypeTuple::make(TypeFunc::Parms+1, fields);
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333
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334 // create result type (range)
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335 fields = TypeTuple::fields(0);
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336
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337 const TypeTuple *range = TypeTuple::make(TypeFunc::Parms+0, fields);
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338
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339 return TypeFunc::make(domain, range);
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340 }
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341
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342
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343 const TypeFunc *OptoRuntime::new_array_Type() {
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344 // create input type (domain)
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345 const Type **fields = TypeTuple::fields(2);
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346 fields[TypeFunc::Parms+0] = TypeInstPtr::NOTNULL; // element klass
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347 fields[TypeFunc::Parms+1] = TypeInt::INT; // array size
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348 const TypeTuple *domain = TypeTuple::make(TypeFunc::Parms+2, fields);
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349
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350 // create result type (range)
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351 fields = TypeTuple::fields(1);
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352 fields[TypeFunc::Parms+0] = TypeRawPtr::NOTNULL; // Returned oop
|
|
|
353
|
|
|
354 const TypeTuple *range = TypeTuple::make(TypeFunc::Parms+1, fields);
|
|
|
355
|
|
|
356 return TypeFunc::make(domain, range);
|
|
|
357 }
|
|
|
358
|
|
|
359 const TypeFunc *OptoRuntime::multianewarray_Type(int ndim) {
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|
|
360 // create input type (domain)
|
|
|
361 const int nargs = ndim + 1;
|
|
|
362 const Type **fields = TypeTuple::fields(nargs);
|
|
|
363 fields[TypeFunc::Parms+0] = TypeInstPtr::NOTNULL; // element klass
|
|
|
364 for( int i = 1; i < nargs; i++ )
|
|
|
365 fields[TypeFunc::Parms + i] = TypeInt::INT; // array size
|
|
|
366 const TypeTuple *domain = TypeTuple::make(TypeFunc::Parms+nargs, fields);
|
|
|
367
|
|
|
368 // create result type (range)
|
|
|
369 fields = TypeTuple::fields(1);
|
|
|
370 fields[TypeFunc::Parms+0] = TypeRawPtr::NOTNULL; // Returned oop
|
|
|
371 const TypeTuple *range = TypeTuple::make(TypeFunc::Parms+1, fields);
|
|
|
372
|
|
|
373 return TypeFunc::make(domain, range);
|
|
|
374 }
|
|
|
375
|
|
|
376 const TypeFunc *OptoRuntime::multianewarray2_Type() {
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|
|
377 return multianewarray_Type(2);
|
|
|
378 }
|
|
|
379
|
|
|
380 const TypeFunc *OptoRuntime::multianewarray3_Type() {
|
|
|
381 return multianewarray_Type(3);
|
|
|
382 }
|
|
|
383
|
|
|
384 const TypeFunc *OptoRuntime::multianewarray4_Type() {
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|
|
385 return multianewarray_Type(4);
|
|
|
386 }
|
|
|
387
|
|
|
388 const TypeFunc *OptoRuntime::multianewarray5_Type() {
|
|
|
389 return multianewarray_Type(5);
|
|
|
390 }
|
|
|
391
|
|
342
|
392 const TypeFunc *OptoRuntime::g1_wb_pre_Type() {
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|
|
393 const Type **fields = TypeTuple::fields(2);
|
|
|
394 fields[TypeFunc::Parms+0] = TypeInstPtr::NOTNULL; // original field value
|
|
|
395 fields[TypeFunc::Parms+1] = TypeRawPtr::NOTNULL; // thread
|
|
|
396 const TypeTuple *domain = TypeTuple::make(TypeFunc::Parms+2, fields);
|
|
|
397
|
|
|
398 // create result type (range)
|
|
|
399 fields = TypeTuple::fields(0);
|
|
|
400 const TypeTuple *range = TypeTuple::make(TypeFunc::Parms+0, fields);
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|
|
401
|
|
|
402 return TypeFunc::make(domain, range);
|
|
|
403 }
|
|
|
404
|
|
|
405 const TypeFunc *OptoRuntime::g1_wb_post_Type() {
|
|
|
406
|
|
|
407 const Type **fields = TypeTuple::fields(2);
|
|
|
408 fields[TypeFunc::Parms+0] = TypeRawPtr::NOTNULL; // Card addr
|
|
|
409 fields[TypeFunc::Parms+1] = TypeRawPtr::NOTNULL; // thread
|
|
|
410 const TypeTuple *domain = TypeTuple::make(TypeFunc::Parms+2, fields);
|
|
|
411
|
|
|
412 // create result type (range)
|
|
|
413 fields = TypeTuple::fields(0);
|
|
|
414 const TypeTuple *range = TypeTuple::make(TypeFunc::Parms, fields);
|
|
|
415
|
|
|
416 return TypeFunc::make(domain, range);
|
|
|
417 }
|
|
|
418
|
|
0
|
419 const TypeFunc *OptoRuntime::uncommon_trap_Type() {
|
|
|
420 // create input type (domain)
|
|
|
421 const Type **fields = TypeTuple::fields(1);
|
|
|
422 // symbolOop name of class to be loaded
|
|
|
423 fields[TypeFunc::Parms+0] = TypeInt::INT;
|
|
|
424 const TypeTuple *domain = TypeTuple::make(TypeFunc::Parms+1, fields);
|
|
|
425
|
|
|
426 // create result type (range)
|
|
|
427 fields = TypeTuple::fields(0);
|
|
|
428 const TypeTuple *range = TypeTuple::make(TypeFunc::Parms+0, fields);
|
|
|
429
|
|
|
430 return TypeFunc::make(domain, range);
|
|
|
431 }
|
|
|
432
|
|
|
433 # ifdef ENABLE_ZAP_DEAD_LOCALS
|
|
|
434 // Type used for stub generation for zap_dead_locals.
|
|
|
435 // No inputs or outputs
|
|
|
436 const TypeFunc *OptoRuntime::zap_dead_locals_Type() {
|
|
|
437 // create input type (domain)
|
|
|
438 const Type **fields = TypeTuple::fields(0);
|
|
|
439 const TypeTuple *domain = TypeTuple::make(TypeFunc::Parms,fields);
|
|
|
440
|
|
|
441 // create result type (range)
|
|
|
442 fields = TypeTuple::fields(0);
|
|
|
443 const TypeTuple *range = TypeTuple::make(TypeFunc::Parms,fields);
|
|
|
444
|
|
|
445 return TypeFunc::make(domain,range);
|
|
|
446 }
|
|
|
447 # endif
|
|
|
448
|
|
|
449
|
|
|
450 //-----------------------------------------------------------------------------
|
|
|
451 // Monitor Handling
|
|
|
452 const TypeFunc *OptoRuntime::complete_monitor_enter_Type() {
|
|
|
453 // create input type (domain)
|
|
|
454 const Type **fields = TypeTuple::fields(2);
|
|
|
455 fields[TypeFunc::Parms+0] = TypeInstPtr::NOTNULL; // Object to be Locked
|
|
|
456 fields[TypeFunc::Parms+1] = TypeRawPtr::BOTTOM; // Address of stack location for lock
|
|
|
457 const TypeTuple *domain = TypeTuple::make(TypeFunc::Parms+2,fields);
|
|
|
458
|
|
|
459 // create result type (range)
|
|
|
460 fields = TypeTuple::fields(0);
|
|
|
461
|
|
|
462 const TypeTuple *range = TypeTuple::make(TypeFunc::Parms+0,fields);
|
|
|
463
|
|
|
464 return TypeFunc::make(domain,range);
|
|
|
465 }
|
|
|
466
|
|
|
467
|
|
|
468 //-----------------------------------------------------------------------------
|
|
|
469 const TypeFunc *OptoRuntime::complete_monitor_exit_Type() {
|
|
|
470 // create input type (domain)
|
|
|
471 const Type **fields = TypeTuple::fields(2);
|
|
|
472 fields[TypeFunc::Parms+0] = TypeInstPtr::NOTNULL; // Object to be Locked
|
|
|
473 fields[TypeFunc::Parms+1] = TypeRawPtr::BOTTOM; // Address of stack location for lock
|
|
|
474 const TypeTuple *domain = TypeTuple::make(TypeFunc::Parms+2,fields);
|
|
|
475
|
|
|
476 // create result type (range)
|
|
|
477 fields = TypeTuple::fields(0);
|
|
|
478
|
|
|
479 const TypeTuple *range = TypeTuple::make(TypeFunc::Parms+0,fields);
|
|
|
480
|
|
|
481 return TypeFunc::make(domain,range);
|
|
|
482 }
|
|
|
483
|
|
|
484 const TypeFunc* OptoRuntime::flush_windows_Type() {
|
|
|
485 // create input type (domain)
|
|
|
486 const Type** fields = TypeTuple::fields(1);
|
|
|
487 fields[TypeFunc::Parms+0] = NULL; // void
|
|
|
488 const TypeTuple *domain = TypeTuple::make(TypeFunc::Parms, fields);
|
|
|
489
|
|
|
490 // create result type
|
|
|
491 fields = TypeTuple::fields(1);
|
|
|
492 fields[TypeFunc::Parms+0] = NULL; // void
|
|
|
493 const TypeTuple *range = TypeTuple::make(TypeFunc::Parms, fields);
|
|
|
494
|
|
|
495 return TypeFunc::make(domain, range);
|
|
|
496 }
|
|
|
497
|
|
|
498 const TypeFunc* OptoRuntime::l2f_Type() {
|
|
|
499 // create input type (domain)
|
|
|
500 const Type **fields = TypeTuple::fields(2);
|
|
|
501 fields[TypeFunc::Parms+0] = TypeLong::LONG;
|
|
|
502 fields[TypeFunc::Parms+1] = Type::HALF;
|
|
|
503 const TypeTuple *domain = TypeTuple::make(TypeFunc::Parms+2, fields);
|
|
|
504
|
|
|
505 // create result type (range)
|
|
|
506 fields = TypeTuple::fields(1);
|
|
|
507 fields[TypeFunc::Parms+0] = Type::FLOAT;
|
|
|
508 const TypeTuple *range = TypeTuple::make(TypeFunc::Parms+1, fields);
|
|
|
509
|
|
|
510 return TypeFunc::make(domain, range);
|
|
|
511 }
|
|
|
512
|
|
|
513 const TypeFunc* OptoRuntime::modf_Type() {
|
|
|
514 const Type **fields = TypeTuple::fields(2);
|
|
|
515 fields[TypeFunc::Parms+0] = Type::FLOAT;
|
|
|
516 fields[TypeFunc::Parms+1] = Type::FLOAT;
|
|
|
517 const TypeTuple *domain = TypeTuple::make(TypeFunc::Parms+2, fields);
|
|
|
518
|
|
|
519 // create result type (range)
|
|
|
520 fields = TypeTuple::fields(1);
|
|
|
521 fields[TypeFunc::Parms+0] = Type::FLOAT;
|
|
|
522
|
|
|
523 const TypeTuple *range = TypeTuple::make(TypeFunc::Parms+1, fields);
|
|
|
524
|
|
|
525 return TypeFunc::make(domain, range);
|
|
|
526 }
|
|
|
527
|
|
|
528 const TypeFunc *OptoRuntime::Math_D_D_Type() {
|
|
|
529 // create input type (domain)
|
|
|
530 const Type **fields = TypeTuple::fields(2);
|
|
|
531 // symbolOop name of class to be loaded
|
|
|
532 fields[TypeFunc::Parms+0] = Type::DOUBLE;
|
|
|
533 fields[TypeFunc::Parms+1] = Type::HALF;
|
|
|
534 const TypeTuple *domain = TypeTuple::make(TypeFunc::Parms+2, fields);
|
|
|
535
|
|
|
536 // create result type (range)
|
|
|
537 fields = TypeTuple::fields(2);
|
|
|
538 fields[TypeFunc::Parms+0] = Type::DOUBLE;
|
|
|
539 fields[TypeFunc::Parms+1] = Type::HALF;
|
|
|
540 const TypeTuple *range = TypeTuple::make(TypeFunc::Parms+2, fields);
|
|
|
541
|
|
|
542 return TypeFunc::make(domain, range);
|
|
|
543 }
|
|
|
544
|
|
|
545 const TypeFunc* OptoRuntime::Math_DD_D_Type() {
|
|
|
546 const Type **fields = TypeTuple::fields(4);
|
|
|
547 fields[TypeFunc::Parms+0] = Type::DOUBLE;
|
|
|
548 fields[TypeFunc::Parms+1] = Type::HALF;
|
|
|
549 fields[TypeFunc::Parms+2] = Type::DOUBLE;
|
|
|
550 fields[TypeFunc::Parms+3] = Type::HALF;
|
|
|
551 const TypeTuple *domain = TypeTuple::make(TypeFunc::Parms+4, fields);
|
|
|
552
|
|
|
553 // create result type (range)
|
|
|
554 fields = TypeTuple::fields(2);
|
|
|
555 fields[TypeFunc::Parms+0] = Type::DOUBLE;
|
|
|
556 fields[TypeFunc::Parms+1] = Type::HALF;
|
|
|
557 const TypeTuple *range = TypeTuple::make(TypeFunc::Parms+2, fields);
|
|
|
558
|
|
|
559 return TypeFunc::make(domain, range);
|
|
|
560 }
|
|
|
561
|
|
|
562 //-------------- currentTimeMillis
|
|
|
563
|
|
|
564 const TypeFunc* OptoRuntime::current_time_millis_Type() {
|
|
|
565 // create input type (domain)
|
|
|
566 const Type **fields = TypeTuple::fields(0);
|
|
|
567 const TypeTuple *domain = TypeTuple::make(TypeFunc::Parms+0, fields);
|
|
|
568
|
|
|
569 // create result type (range)
|
|
|
570 fields = TypeTuple::fields(2);
|
|
|
571 fields[TypeFunc::Parms+0] = TypeLong::LONG;
|
|
|
572 fields[TypeFunc::Parms+1] = Type::HALF;
|
|
|
573 const TypeTuple *range = TypeTuple::make(TypeFunc::Parms+2, fields);
|
|
|
574
|
|
|
575 return TypeFunc::make(domain, range);
|
|
|
576 }
|
|
|
577
|
|
|
578 // arraycopy stub variations:
|
|
|
579 enum ArrayCopyType {
|
|
|
580 ac_fast, // void(ptr, ptr, size_t)
|
|
|
581 ac_checkcast, // int(ptr, ptr, size_t, size_t, ptr)
|
|
|
582 ac_slow, // void(ptr, int, ptr, int, int)
|
|
|
583 ac_generic // int(ptr, int, ptr, int, int)
|
|
|
584 };
|
|
|
585
|
|
|
586 static const TypeFunc* make_arraycopy_Type(ArrayCopyType act) {
|
|
|
587 // create input type (domain)
|
|
|
588 int num_args = (act == ac_fast ? 3 : 5);
|
|
|
589 int num_size_args = (act == ac_fast ? 1 : act == ac_checkcast ? 2 : 0);
|
|
|
590 int argcnt = num_args;
|
|
|
591 LP64_ONLY(argcnt += num_size_args); // halfwords for lengths
|
|
|
592 const Type** fields = TypeTuple::fields(argcnt);
|
|
|
593 int argp = TypeFunc::Parms;
|
|
|
594 fields[argp++] = TypePtr::NOTNULL; // src
|
|
|
595 if (num_size_args == 0) {
|
|
|
596 fields[argp++] = TypeInt::INT; // src_pos
|
|
|
597 }
|
|
|
598 fields[argp++] = TypePtr::NOTNULL; // dest
|
|
|
599 if (num_size_args == 0) {
|
|
|
600 fields[argp++] = TypeInt::INT; // dest_pos
|
|
|
601 fields[argp++] = TypeInt::INT; // length
|
|
|
602 }
|
|
|
603 while (num_size_args-- > 0) {
|
|
|
604 fields[argp++] = TypeX_X; // size in whatevers (size_t)
|
|
|
605 LP64_ONLY(fields[argp++] = Type::HALF); // other half of long length
|
|
|
606 }
|
|
|
607 if (act == ac_checkcast) {
|
|
|
608 fields[argp++] = TypePtr::NOTNULL; // super_klass
|
|
|
609 }
|
|
|
610 assert(argp == TypeFunc::Parms+argcnt, "correct decoding of act");
|
|
|
611 const TypeTuple* domain = TypeTuple::make(TypeFunc::Parms+argcnt, fields);
|
|
|
612
|
|
|
613 // create result type if needed
|
|
|
614 int retcnt = (act == ac_checkcast || act == ac_generic ? 1 : 0);
|
|
|
615 fields = TypeTuple::fields(1);
|
|
|
616 if (retcnt == 0)
|
|
|
617 fields[TypeFunc::Parms+0] = NULL; // void
|
|
|
618 else
|
|
|
619 fields[TypeFunc::Parms+0] = TypeInt::INT; // status result, if needed
|
|
|
620 const TypeTuple* range = TypeTuple::make(TypeFunc::Parms+retcnt, fields);
|
|
|
621 return TypeFunc::make(domain, range);
|
|
|
622 }
|
|
|
623
|
|
|
624 const TypeFunc* OptoRuntime::fast_arraycopy_Type() {
|
|
|
625 // This signature is simple: Two base pointers and a size_t.
|
|
|
626 return make_arraycopy_Type(ac_fast);
|
|
|
627 }
|
|
|
628
|
|
|
629 const TypeFunc* OptoRuntime::checkcast_arraycopy_Type() {
|
|
|
630 // An extension of fast_arraycopy_Type which adds type checking.
|
|
|
631 return make_arraycopy_Type(ac_checkcast);
|
|
|
632 }
|
|
|
633
|
|
|
634 const TypeFunc* OptoRuntime::slow_arraycopy_Type() {
|
|
|
635 // This signature is exactly the same as System.arraycopy.
|
|
|
636 // There are no intptr_t (int/long) arguments.
|
|
|
637 return make_arraycopy_Type(ac_slow);
|
|
|
638 }
|
|
|
639
|
|
|
640 const TypeFunc* OptoRuntime::generic_arraycopy_Type() {
|
|
|
641 // This signature is like System.arraycopy, except that it returns status.
|
|
|
642 return make_arraycopy_Type(ac_generic);
|
|
|
643 }
|
|
|
644
|
|
|
645
|
|
|
646 //------------- Interpreter state access for on stack replacement
|
|
|
647 const TypeFunc* OptoRuntime::osr_end_Type() {
|
|
|
648 // create input type (domain)
|
|
|
649 const Type **fields = TypeTuple::fields(1);
|
|
|
650 fields[TypeFunc::Parms+0] = TypeRawPtr::BOTTOM; // OSR temp buf
|
|
|
651 const TypeTuple *domain = TypeTuple::make(TypeFunc::Parms+1, fields);
|
|
|
652
|
|
|
653 // create result type
|
|
|
654 fields = TypeTuple::fields(1);
|
|
|
655 // fields[TypeFunc::Parms+0] = TypeInstPtr::NOTNULL; // locked oop
|
|
|
656 fields[TypeFunc::Parms+0] = NULL; // void
|
|
|
657 const TypeTuple *range = TypeTuple::make(TypeFunc::Parms, fields);
|
|
|
658 return TypeFunc::make(domain, range);
|
|
|
659 }
|
|
|
660
|
|
|
661 //-------------- methodData update helpers
|
|
|
662
|
|
|
663 const TypeFunc* OptoRuntime::profile_receiver_type_Type() {
|
|
|
664 // create input type (domain)
|
|
|
665 const Type **fields = TypeTuple::fields(2);
|
|
|
666 fields[TypeFunc::Parms+0] = TypeAryPtr::NOTNULL; // methodData pointer
|
|
|
667 fields[TypeFunc::Parms+1] = TypeInstPtr::BOTTOM; // receiver oop
|
|
|
668 const TypeTuple *domain = TypeTuple::make(TypeFunc::Parms+2, fields);
|
|
|
669
|
|
|
670 // create result type
|
|
|
671 fields = TypeTuple::fields(1);
|
|
|
672 fields[TypeFunc::Parms+0] = NULL; // void
|
|
|
673 const TypeTuple *range = TypeTuple::make(TypeFunc::Parms, fields);
|
|
|
674 return TypeFunc::make(domain,range);
|
|
|
675 }
|
|
|
676
|
|
|
677 JRT_LEAF(void, OptoRuntime::profile_receiver_type_C(DataLayout* data, oopDesc* receiver))
|
|
|
678 if (receiver == NULL) return;
|
|
|
679 klassOop receiver_klass = receiver->klass();
|
|
|
680
|
|
|
681 intptr_t* mdp = ((intptr_t*)(data)) + DataLayout::header_size_in_cells();
|
|
|
682 int empty_row = -1; // free row, if any is encountered
|
|
|
683
|
|
|
684 // ReceiverTypeData* vc = new ReceiverTypeData(mdp);
|
|
|
685 for (uint row = 0; row < ReceiverTypeData::row_limit(); row++) {
|
|
|
686 // if (vc->receiver(row) == receiver_klass)
|
|
|
687 int receiver_off = ReceiverTypeData::receiver_cell_index(row);
|
|
|
688 intptr_t row_recv = *(mdp + receiver_off);
|
|
|
689 if (row_recv == (intptr_t) receiver_klass) {
|
|
|
690 // vc->set_receiver_count(row, vc->receiver_count(row) + DataLayout::counter_increment);
|
|
|
691 int count_off = ReceiverTypeData::receiver_count_cell_index(row);
|
|
|
692 *(mdp + count_off) += DataLayout::counter_increment;
|
|
|
693 return;
|
|
|
694 } else if (row_recv == 0) {
|
|
|
695 // else if (vc->receiver(row) == NULL)
|
|
|
696 empty_row = (int) row;
|
|
|
697 }
|
|
|
698 }
|
|
|
699
|
|
|
700 if (empty_row != -1) {
|
|
|
701 int receiver_off = ReceiverTypeData::receiver_cell_index(empty_row);
|
|
|
702 // vc->set_receiver(empty_row, receiver_klass);
|
|
|
703 *(mdp + receiver_off) = (intptr_t) receiver_klass;
|
|
|
704 // vc->set_receiver_count(empty_row, DataLayout::counter_increment);
|
|
|
705 int count_off = ReceiverTypeData::receiver_count_cell_index(empty_row);
|
|
|
706 *(mdp + count_off) = DataLayout::counter_increment;
|
|
|
707 }
|
|
|
708 JRT_END
|
|
|
709
|
|
|
710 //-----------------------------------------------------------------------------
|
|
|
711 // implicit exception support.
|
|
|
712
|
|
|
713 static void report_null_exception_in_code_cache(address exception_pc) {
|
|
|
714 ResourceMark rm;
|
|
|
715 CodeBlob* n = CodeCache::find_blob(exception_pc);
|
|
|
716 if (n != NULL) {
|
|
|
717 tty->print_cr("#");
|
|
|
718 tty->print_cr("# HotSpot Runtime Error, null exception in generated code");
|
|
|
719 tty->print_cr("#");
|
|
|
720 tty->print_cr("# pc where exception happened = " INTPTR_FORMAT, exception_pc);
|
|
|
721
|
|
|
722 if (n->is_nmethod()) {
|
|
|
723 methodOop method = ((nmethod*)n)->method();
|
|
|
724 tty->print_cr("# Method where it happened %s.%s ", Klass::cast(method->method_holder())->name()->as_C_string(), method->name()->as_C_string());
|
|
|
725 tty->print_cr("#");
|
|
|
726 if (ShowMessageBoxOnError && UpdateHotSpotCompilerFileOnError) {
|
|
|
727 const char* title = "HotSpot Runtime Error";
|
|
|
728 const char* question = "Do you want to exclude compilation of this method in future runs?";
|
|
|
729 if (os::message_box(title, question)) {
|
|
|
730 CompilerOracle::append_comment_to_file("");
|
|
|
731 CompilerOracle::append_comment_to_file("Null exception in compiled code resulted in the following exclude");
|
|
|
732 CompilerOracle::append_comment_to_file("");
|
|
|
733 CompilerOracle::append_exclude_to_file(method);
|
|
|
734 tty->print_cr("#");
|
|
|
735 tty->print_cr("# %s has been updated to exclude the specified method", CompileCommandFile);
|
|
|
736 tty->print_cr("#");
|
|
|
737 }
|
|
|
738 }
|
|
|
739 fatal("Implicit null exception happened in compiled method");
|
|
|
740 } else {
|
|
|
741 n->print();
|
|
|
742 fatal("Implicit null exception happened in generated stub");
|
|
|
743 }
|
|
|
744 }
|
|
|
745 fatal("Implicit null exception at wrong place");
|
|
|
746 }
|
|
|
747
|
|
|
748
|
|
|
749 //-------------------------------------------------------------------------------------
|
|
|
750 // register policy
|
|
|
751
|
|
|
752 bool OptoRuntime::is_callee_saved_register(MachRegisterNumbers reg) {
|
|
|
753 assert(reg >= 0 && reg < _last_Mach_Reg, "must be a machine register");
|
|
|
754 switch (register_save_policy[reg]) {
|
|
|
755 case 'C': return false; //SOC
|
|
|
756 case 'E': return true ; //SOE
|
|
|
757 case 'N': return false; //NS
|
|
|
758 case 'A': return false; //AS
|
|
|
759 }
|
|
|
760 ShouldNotReachHere();
|
|
|
761 return false;
|
|
|
762 }
|
|
|
763
|
|
|
764 //-----------------------------------------------------------------------
|
|
|
765 // Exceptions
|
|
|
766 //
|
|
|
767
|
|
|
768 static void trace_exception(oop exception_oop, address exception_pc, const char* msg) PRODUCT_RETURN;
|
|
|
769
|
|
|
770 // The method is an entry that is always called by a C++ method not
|
|
|
771 // directly from compiled code. Compiled code will call the C++ method following.
|
|
|
772 // We can't allow async exception to be installed during exception processing.
|
|
|
773 JRT_ENTRY_NO_ASYNC(address, OptoRuntime::handle_exception_C_helper(JavaThread* thread, nmethod* &nm))
|
|
|
774
|
|
|
775 // Do not confuse exception_oop with pending_exception. The exception_oop
|
|
|
776 // is only used to pass arguments into the method. Not for general
|
|
|
777 // exception handling. DO NOT CHANGE IT to use pending_exception, since
|
|
|
778 // the runtime stubs checks this on exit.
|
|
|
779 assert(thread->exception_oop() != NULL, "exception oop is found");
|
|
|
780 address handler_address = NULL;
|
|
|
781
|
|
|
782 Handle exception(thread, thread->exception_oop());
|
|
|
783
|
|
|
784 if (TraceExceptions) {
|
|
|
785 trace_exception(exception(), thread->exception_pc(), "");
|
|
|
786 }
|
|
|
787 // for AbortVMOnException flag
|
|
|
788 NOT_PRODUCT(Exceptions::debug_check_abort(exception));
|
|
|
789
|
|
|
790 #ifdef ASSERT
|
|
|
791 if (!(exception->is_a(SystemDictionary::throwable_klass()))) {
|
|
|
792 // should throw an exception here
|
|
|
793 ShouldNotReachHere();
|
|
|
794 }
|
|
|
795 #endif
|
|
|
796
|
|
|
797
|
|
|
798 // new exception handling: this method is entered only from adapters
|
|
|
799 // exceptions from compiled java methods are handled in compiled code
|
|
|
800 // using rethrow node
|
|
|
801
|
|
|
802 address pc = thread->exception_pc();
|
|
|
803 nm = CodeCache::find_nmethod(pc);
|
|
|
804 assert(nm != NULL, "No NMethod found");
|
|
|
805 if (nm->is_native_method()) {
|
|
|
806 fatal("Native mathod should not have path to exception handling");
|
|
|
807 } else {
|
|
|
808 // we are switching to old paradigm: search for exception handler in caller_frame
|
|
|
809 // instead in exception handler of caller_frame.sender()
|
|
|
810
|
|
|
811 if (JvmtiExport::can_post_exceptions()) {
|
|
|
812 // "Full-speed catching" is not necessary here,
|
|
|
813 // since we're notifying the VM on every catch.
|
|
|
814 // Force deoptimization and the rest of the lookup
|
|
|
815 // will be fine.
|
|
|
816 deoptimize_caller_frame(thread, true);
|
|
|
817 }
|
|
|
818
|
|
|
819 // Check the stack guard pages. If enabled, look for handler in this frame;
|
|
|
820 // otherwise, forcibly unwind the frame.
|
|
|
821 //
|
|
|
822 // 4826555: use default current sp for reguard_stack instead of &nm: it's more accurate.
|
|
|
823 bool force_unwind = !thread->reguard_stack();
|
|
|
824 bool deopting = false;
|
|
|
825 if (nm->is_deopt_pc(pc)) {
|
|
|
826 deopting = true;
|
|
|
827 RegisterMap map(thread, false);
|
|
|
828 frame deoptee = thread->last_frame().sender(&map);
|
|
|
829 assert(deoptee.is_deoptimized_frame(), "must be deopted");
|
|
|
830 // Adjust the pc back to the original throwing pc
|
|
|
831 pc = deoptee.pc();
|
|
|
832 }
|
|
|
833
|
|
|
834 // If we are forcing an unwind because of stack overflow then deopt is
|
|
|
835 // irrelevant sice we are throwing the frame away anyway.
|
|
|
836
|
|
|
837 if (deopting && !force_unwind) {
|
|
|
838 handler_address = SharedRuntime::deopt_blob()->unpack_with_exception();
|
|
|
839 } else {
|
|
|
840
|
|
|
841 handler_address =
|
|
|
842 force_unwind ? NULL : nm->handler_for_exception_and_pc(exception, pc);
|
|
|
843
|
|
|
844 if (handler_address == NULL) {
|
|
|
845 handler_address = SharedRuntime::compute_compiled_exc_handler(nm, pc, exception, force_unwind, true);
|
|
|
846 assert (handler_address != NULL, "must have compiled handler");
|
|
|
847 // Update the exception cache only when the unwind was not forced.
|
|
|
848 if (!force_unwind) {
|
|
|
849 nm->add_handler_for_exception_and_pc(exception,pc,handler_address);
|
|
|
850 }
|
|
|
851 } else {
|
|
|
852 assert(handler_address == SharedRuntime::compute_compiled_exc_handler(nm, pc, exception, force_unwind, true), "Must be the same");
|
|
|
853 }
|
|
|
854 }
|
|
|
855
|
|
|
856 thread->set_exception_pc(pc);
|
|
|
857 thread->set_exception_handler_pc(handler_address);
|
|
|
858 thread->set_exception_stack_size(0);
|
|
|
859 }
|
|
|
860
|
|
|
861 // Restore correct return pc. Was saved above.
|
|
|
862 thread->set_exception_oop(exception());
|
|
|
863 return handler_address;
|
|
|
864
|
|
|
865 JRT_END
|
|
|
866
|
|
|
867 // We are entering here from exception_blob
|
|
|
868 // If there is a compiled exception handler in this method, we will continue there;
|
|
|
869 // otherwise we will unwind the stack and continue at the caller of top frame method
|
|
|
870 // Note we enter without the usual JRT wrapper. We will call a helper routine that
|
|
|
871 // will do the normal VM entry. We do it this way so that we can see if the nmethod
|
|
|
872 // we looked up the handler for has been deoptimized in the meantime. If it has been
|
|
|
873 // we must not use the handler and instread return the deopt blob.
|
|
|
874 address OptoRuntime::handle_exception_C(JavaThread* thread) {
|
|
|
875 //
|
|
|
876 // We are in Java not VM and in debug mode we have a NoHandleMark
|
|
|
877 //
|
|
|
878 #ifndef PRODUCT
|
|
|
879 SharedRuntime::_find_handler_ctr++; // find exception handler
|
|
|
880 #endif
|
|
|
881 debug_only(NoHandleMark __hm;)
|
|
|
882 nmethod* nm = NULL;
|
|
|
883 address handler_address = NULL;
|
|
|
884 {
|
|
|
885 // Enter the VM
|
|
|
886
|
|
|
887 ResetNoHandleMark rnhm;
|
|
|
888 handler_address = handle_exception_C_helper(thread, nm);
|
|
|
889 }
|
|
|
890
|
|
|
891 // Back in java: Use no oops, DON'T safepoint
|
|
|
892
|
|
|
893 // Now check to see if the handler we are returning is in a now
|
|
|
894 // deoptimized frame
|
|
|
895
|
|
|
896 if (nm != NULL) {
|
|
|
897 RegisterMap map(thread, false);
|
|
|
898 frame caller = thread->last_frame().sender(&map);
|
|
|
899 #ifdef ASSERT
|
|
|
900 assert(caller.is_compiled_frame(), "must be");
|
|
|
901 #endif // ASSERT
|
|
|
902 if (caller.is_deoptimized_frame()) {
|
|
|
903 handler_address = SharedRuntime::deopt_blob()->unpack_with_exception();
|
|
|
904 }
|
|
|
905 }
|
|
|
906 return handler_address;
|
|
|
907 }
|
|
|
908
|
|
|
909 //------------------------------rethrow----------------------------------------
|
|
|
910 // We get here after compiled code has executed a 'RethrowNode'. The callee
|
|
|
911 // is either throwing or rethrowing an exception. The callee-save registers
|
|
|
912 // have been restored, synchronized objects have been unlocked and the callee
|
|
|
913 // stack frame has been removed. The return address was passed in.
|
|
|
914 // Exception oop is passed as the 1st argument. This routine is then called
|
|
|
915 // from the stub. On exit, we know where to jump in the caller's code.
|
|
|
916 // After this C code exits, the stub will pop his frame and end in a jump
|
|
|
917 // (instead of a return). We enter the caller's default handler.
|
|
|
918 //
|
|
|
919 // This must be JRT_LEAF:
|
|
|
920 // - caller will not change its state as we cannot block on exit,
|
|
|
921 // therefore raw_exception_handler_for_return_address is all it takes
|
|
|
922 // to handle deoptimized blobs
|
|
|
923 //
|
|
|
924 // However, there needs to be a safepoint check in the middle! So compiled
|
|
|
925 // safepoints are completely watertight.
|
|
|
926 //
|
|
|
927 // Thus, it cannot be a leaf since it contains the No_GC_Verifier.
|
|
|
928 //
|
|
|
929 // *THIS IS NOT RECOMMENDED PROGRAMMING STYLE*
|
|
|
930 //
|
|
|
931 address OptoRuntime::rethrow_C(oopDesc* exception, JavaThread* thread, address ret_pc) {
|
|
|
932 #ifndef PRODUCT
|
|
|
933 SharedRuntime::_rethrow_ctr++; // count rethrows
|
|
|
934 #endif
|
|
|
935 assert (exception != NULL, "should have thrown a NULLPointerException");
|
|
|
936 #ifdef ASSERT
|
|
|
937 if (!(exception->is_a(SystemDictionary::throwable_klass()))) {
|
|
|
938 // should throw an exception here
|
|
|
939 ShouldNotReachHere();
|
|
|
940 }
|
|
|
941 #endif
|
|
|
942
|
|
|
943 thread->set_vm_result(exception);
|
|
|
944 // Frame not compiled (handles deoptimization blob)
|
|
|
945 return SharedRuntime::raw_exception_handler_for_return_address(ret_pc);
|
|
|
946 }
|
|
|
947
|
|
|
948
|
|
|
949 const TypeFunc *OptoRuntime::rethrow_Type() {
|
|
|
950 // create input type (domain)
|
|
|
951 const Type **fields = TypeTuple::fields(1);
|
|
|
952 fields[TypeFunc::Parms+0] = TypeInstPtr::NOTNULL; // Exception oop
|
|
|
953 const TypeTuple *domain = TypeTuple::make(TypeFunc::Parms+1,fields);
|
|
|
954
|
|
|
955 // create result type (range)
|
|
|
956 fields = TypeTuple::fields(1);
|
|
|
957 fields[TypeFunc::Parms+0] = TypeInstPtr::NOTNULL; // Exception oop
|
|
|
958 const TypeTuple *range = TypeTuple::make(TypeFunc::Parms+1, fields);
|
|
|
959
|
|
|
960 return TypeFunc::make(domain, range);
|
|
|
961 }
|
|
|
962
|
|
|
963
|
|
|
964 void OptoRuntime::deoptimize_caller_frame(JavaThread *thread, bool doit) {
|
|
|
965 // Deoptimize frame
|
|
|
966 if (doit) {
|
|
|
967 // Called from within the owner thread, so no need for safepoint
|
|
|
968 RegisterMap reg_map(thread);
|
|
|
969 frame stub_frame = thread->last_frame();
|
|
|
970 assert(stub_frame.is_runtime_frame() || exception_blob()->contains(stub_frame.pc()), "sanity check");
|
|
|
971 frame caller_frame = stub_frame.sender(®_map);
|
|
|
972
|
|
|
973 VM_DeoptimizeFrame deopt(thread, caller_frame.id());
|
|
|
974 VMThread::execute(&deopt);
|
|
|
975 }
|
|
|
976 }
|
|
|
977
|
|
|
978
|
|
|
979 const TypeFunc *OptoRuntime::register_finalizer_Type() {
|
|
|
980 // create input type (domain)
|
|
|
981 const Type **fields = TypeTuple::fields(1);
|
|
|
982 fields[TypeFunc::Parms+0] = TypeInstPtr::NOTNULL; // oop; Receiver
|
|
|
983 // // The JavaThread* is passed to each routine as the last argument
|
|
|
984 // fields[TypeFunc::Parms+1] = TypeRawPtr::NOTNULL; // JavaThread *; Executing thread
|
|
|
985 const TypeTuple *domain = TypeTuple::make(TypeFunc::Parms+1,fields);
|
|
|
986
|
|
|
987 // create result type (range)
|
|
|
988 fields = TypeTuple::fields(0);
|
|
|
989
|
|
|
990 const TypeTuple *range = TypeTuple::make(TypeFunc::Parms+0,fields);
|
|
|
991
|
|
|
992 return TypeFunc::make(domain,range);
|
|
|
993 }
|
|
|
994
|
|
|
995
|
|
|
996 //-----------------------------------------------------------------------------
|
|
|
997 // Dtrace support. entry and exit probes have the same signature
|
|
|
998 const TypeFunc *OptoRuntime::dtrace_method_entry_exit_Type() {
|
|
|
999 // create input type (domain)
|
|
|
1000 const Type **fields = TypeTuple::fields(2);
|
|
|
1001 fields[TypeFunc::Parms+0] = TypeRawPtr::BOTTOM; // Thread-local storage
|
|
|
1002 fields[TypeFunc::Parms+1] = TypeInstPtr::NOTNULL; // methodOop; Method we are entering
|
|
|
1003 const TypeTuple *domain = TypeTuple::make(TypeFunc::Parms+2,fields);
|
|
|
1004
|
|
|
1005 // create result type (range)
|
|
|
1006 fields = TypeTuple::fields(0);
|
|
|
1007
|
|
|
1008 const TypeTuple *range = TypeTuple::make(TypeFunc::Parms+0,fields);
|
|
|
1009
|
|
|
1010 return TypeFunc::make(domain,range);
|
|
|
1011 }
|
|
|
1012
|
|
|
1013 const TypeFunc *OptoRuntime::dtrace_object_alloc_Type() {
|
|
|
1014 // create input type (domain)
|
|
|
1015 const Type **fields = TypeTuple::fields(2);
|
|
|
1016 fields[TypeFunc::Parms+0] = TypeRawPtr::BOTTOM; // Thread-local storage
|
|
|
1017 fields[TypeFunc::Parms+1] = TypeInstPtr::NOTNULL; // oop; newly allocated object
|
|
|
1018
|
|
|
1019 const TypeTuple *domain = TypeTuple::make(TypeFunc::Parms+2,fields);
|
|
|
1020
|
|
|
1021 // create result type (range)
|
|
|
1022 fields = TypeTuple::fields(0);
|
|
|
1023
|
|
|
1024 const TypeTuple *range = TypeTuple::make(TypeFunc::Parms+0,fields);
|
|
|
1025
|
|
|
1026 return TypeFunc::make(domain,range);
|
|
|
1027 }
|
|
|
1028
|
|
|
1029
|
|
|
1030 JRT_ENTRY_NO_ASYNC(void, OptoRuntime::register_finalizer(oopDesc* obj, JavaThread* thread))
|
|
|
1031 assert(obj->is_oop(), "must be a valid oop");
|
|
|
1032 assert(obj->klass()->klass_part()->has_finalizer(), "shouldn't be here otherwise");
|
|
|
1033 instanceKlass::register_finalizer(instanceOop(obj), CHECK);
|
|
|
1034 JRT_END
|
|
|
1035
|
|
|
1036 //-----------------------------------------------------------------------------
|
|
|
1037
|
|
|
1038 NamedCounter * volatile OptoRuntime::_named_counters = NULL;
|
|
|
1039
|
|
|
1040 //
|
|
|
1041 // dump the collected NamedCounters.
|
|
|
1042 //
|
|
|
1043 void OptoRuntime::print_named_counters() {
|
|
|
1044 int total_lock_count = 0;
|
|
|
1045 int eliminated_lock_count = 0;
|
|
|
1046
|
|
|
1047 NamedCounter* c = _named_counters;
|
|
|
1048 while (c) {
|
|
|
1049 if (c->tag() == NamedCounter::LockCounter || c->tag() == NamedCounter::EliminatedLockCounter) {
|
|
|
1050 int count = c->count();
|
|
|
1051 if (count > 0) {
|
|
|
1052 bool eliminated = c->tag() == NamedCounter::EliminatedLockCounter;
|
|
|
1053 if (Verbose) {
|
|
|
1054 tty->print_cr("%d %s%s", count, c->name(), eliminated ? " (eliminated)" : "");
|
|
|
1055 }
|
|
|
1056 total_lock_count += count;
|
|
|
1057 if (eliminated) {
|
|
|
1058 eliminated_lock_count += count;
|
|
|
1059 }
|
|
|
1060 }
|
|
|
1061 } else if (c->tag() == NamedCounter::BiasedLockingCounter) {
|
|
|
1062 BiasedLockingCounters* blc = ((BiasedLockingNamedCounter*)c)->counters();
|
|
|
1063 if (blc->nonzero()) {
|
|
|
1064 tty->print_cr("%s", c->name());
|
|
|
1065 blc->print_on(tty);
|
|
|
1066 }
|
|
|
1067 }
|
|
|
1068 c = c->next();
|
|
|
1069 }
|
|
|
1070 if (total_lock_count > 0) {
|
|
|
1071 tty->print_cr("dynamic locks: %d", total_lock_count);
|
|
|
1072 if (eliminated_lock_count) {
|
|
|
1073 tty->print_cr("eliminated locks: %d (%d%%)", eliminated_lock_count,
|
|
|
1074 (int)(eliminated_lock_count * 100.0 / total_lock_count));
|
|
|
1075 }
|
|
|
1076 }
|
|
|
1077 }
|
|
|
1078
|
|
|
1079 //
|
|
|
1080 // Allocate a new NamedCounter. The JVMState is used to generate the
|
|
|
1081 // name which consists of method@line for the inlining tree.
|
|
|
1082 //
|
|
|
1083
|
|
|
1084 NamedCounter* OptoRuntime::new_named_counter(JVMState* youngest_jvms, NamedCounter::CounterTag tag) {
|
|
|
1085 int max_depth = youngest_jvms->depth();
|
|
|
1086
|
|
|
1087 // Visit scopes from youngest to oldest.
|
|
|
1088 bool first = true;
|
|
|
1089 stringStream st;
|
|
|
1090 for (int depth = max_depth; depth >= 1; depth--) {
|
|
|
1091 JVMState* jvms = youngest_jvms->of_depth(depth);
|
|
|
1092 ciMethod* m = jvms->has_method() ? jvms->method() : NULL;
|
|
|
1093 if (!first) {
|
|
|
1094 st.print(" ");
|
|
|
1095 } else {
|
|
|
1096 first = false;
|
|
|
1097 }
|
|
|
1098 int bci = jvms->bci();
|
|
|
1099 if (bci < 0) bci = 0;
|
|
|
1100 st.print("%s.%s@%d", m->holder()->name()->as_utf8(), m->name()->as_utf8(), bci);
|
|
|
1101 // To print linenumbers instead of bci use: m->line_number_from_bci(bci)
|
|
|
1102 }
|
|
|
1103 NamedCounter* c;
|
|
|
1104 if (tag == NamedCounter::BiasedLockingCounter) {
|
|
|
1105 c = new BiasedLockingNamedCounter(strdup(st.as_string()));
|
|
|
1106 } else {
|
|
|
1107 c = new NamedCounter(strdup(st.as_string()), tag);
|
|
|
1108 }
|
|
|
1109
|
|
|
1110 // atomically add the new counter to the head of the list. We only
|
|
|
1111 // add counters so this is safe.
|
|
|
1112 NamedCounter* head;
|
|
|
1113 do {
|
|
|
1114 head = _named_counters;
|
|
|
1115 c->set_next(head);
|
|
|
1116 } while (Atomic::cmpxchg_ptr(c, &_named_counters, head) != head);
|
|
|
1117 return c;
|
|
|
1118 }
|
|
|
1119
|
|
|
1120 //-----------------------------------------------------------------------------
|
|
|
1121 // Non-product code
|
|
|
1122 #ifndef PRODUCT
|
|
|
1123
|
|
|
1124 int trace_exception_counter = 0;
|
|
|
1125 static void trace_exception(oop exception_oop, address exception_pc, const char* msg) {
|
|
|
1126 ttyLocker ttyl;
|
|
|
1127 trace_exception_counter++;
|
|
|
1128 tty->print("%d [Exception (%s): ", trace_exception_counter, msg);
|
|
|
1129 exception_oop->print_value();
|
|
|
1130 tty->print(" in ");
|
|
|
1131 CodeBlob* blob = CodeCache::find_blob(exception_pc);
|
|
|
1132 if (blob->is_nmethod()) {
|
|
|
1133 ((nmethod*)blob)->method()->print_value();
|
|
|
1134 } else if (blob->is_runtime_stub()) {
|
|
|
1135 tty->print("<runtime-stub>");
|
|
|
1136 } else {
|
|
|
1137 tty->print("<unknown>");
|
|
|
1138 }
|
|
|
1139 tty->print(" at " INTPTR_FORMAT, exception_pc);
|
|
|
1140 tty->print_cr("]");
|
|
|
1141 }
|
|
|
1142
|
|
|
1143 #endif // PRODUCT
|
|
|
1144
|
|
|
1145
|
|
|
1146 # ifdef ENABLE_ZAP_DEAD_LOCALS
|
|
|
1147 // Called from call sites in compiled code with oop maps (actually safepoints)
|
|
|
1148 // Zaps dead locals in first java frame.
|
|
|
1149 // Is entry because may need to lock to generate oop maps
|
|
|
1150 // Currently, only used for compiler frames, but someday may be used
|
|
|
1151 // for interpreter frames, too.
|
|
|
1152
|
|
|
1153 int OptoRuntime::ZapDeadCompiledLocals_count = 0;
|
|
|
1154
|
|
|
1155 // avoid pointers to member funcs with these helpers
|
|
|
1156 static bool is_java_frame( frame* f) { return f->is_java_frame(); }
|
|
|
1157 static bool is_native_frame(frame* f) { return f->is_native_frame(); }
|
|
|
1158
|
|
|
1159
|
|
|
1160 void OptoRuntime::zap_dead_java_or_native_locals(JavaThread* thread,
|
|
|
1161 bool (*is_this_the_right_frame_to_zap)(frame*)) {
|
|
|
1162 assert(JavaThread::current() == thread, "is this needed?");
|
|
|
1163
|
|
|
1164 if ( !ZapDeadCompiledLocals ) return;
|
|
|
1165
|
|
|
1166 bool skip = false;
|
|
|
1167
|
|
|
1168 if ( ZapDeadCompiledLocalsFirst == 0 ) ; // nothing special
|
|
|
1169 else if ( ZapDeadCompiledLocalsFirst > ZapDeadCompiledLocals_count ) skip = true;
|
|
|
1170 else if ( ZapDeadCompiledLocalsFirst == ZapDeadCompiledLocals_count )
|
|
|
1171 warning("starting zapping after skipping");
|
|
|
1172
|
|
|
1173 if ( ZapDeadCompiledLocalsLast == -1 ) ; // nothing special
|
|
|
1174 else if ( ZapDeadCompiledLocalsLast < ZapDeadCompiledLocals_count ) skip = true;
|
|
|
1175 else if ( ZapDeadCompiledLocalsLast == ZapDeadCompiledLocals_count )
|
|
|
1176 warning("about to zap last zap");
|
|
|
1177
|
|
|
1178 ++ZapDeadCompiledLocals_count; // counts skipped zaps, too
|
|
|
1179
|
|
|
1180 if ( skip ) return;
|
|
|
1181
|
|
|
1182 // find java frame and zap it
|
|
|
1183
|
|
|
1184 for (StackFrameStream sfs(thread); !sfs.is_done(); sfs.next()) {
|
|
|
1185 if (is_this_the_right_frame_to_zap(sfs.current()) ) {
|
|
|
1186 sfs.current()->zap_dead_locals(thread, sfs.register_map());
|
|
|
1187 return;
|
|
|
1188 }
|
|
|
1189 }
|
|
|
1190 warning("no frame found to zap in zap_dead_Java_locals_C");
|
|
|
1191 }
|
|
|
1192
|
|
|
1193 JRT_LEAF(void, OptoRuntime::zap_dead_Java_locals_C(JavaThread* thread))
|
|
|
1194 zap_dead_java_or_native_locals(thread, is_java_frame);
|
|
|
1195 JRT_END
|
|
|
1196
|
|
|
1197 // The following does not work because for one thing, the
|
|
|
1198 // thread state is wrong; it expects java, but it is native.
|
|
|
1199 // Also, the invarients in a native stub are different and
|
|
|
1200 // I'm not sure it is safe to have a MachCalRuntimeDirectNode
|
|
|
1201 // in there.
|
|
|
1202 // So for now, we do not zap in native stubs.
|
|
|
1203
|
|
|
1204 JRT_LEAF(void, OptoRuntime::zap_dead_native_locals_C(JavaThread* thread))
|
|
|
1205 zap_dead_java_or_native_locals(thread, is_native_frame);
|
|
|
1206 JRT_END
|
|
|
1207
|
|
|
1208 # endif
|
