1 /* 2 * Copyright (c) 1998, 2014, Oracle and/or its affiliates. All rights reserved. 3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. 4 * 5 * This code is free software; you can redistribute it and/or modify it 6 * under the terms of the GNU General Public License version 2 only, as 7 * published by the Free Software Foundation. 8 * 9 * This code is distributed in the hope that it will be useful, but WITHOUT 10 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or 11 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License 12 * version 2 for more details (a copy is included in the LICENSE file that 13 * accompanied this code). 14 * 15 * You should have received a copy of the GNU General Public License version 16 * 2 along with this work; if not, write to the Free Software Foundation, 17 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. 18 * 19 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA 20 * or visit www.oracle.com if you need additional information or have any 21 * questions. 22 * 23 */ 24 25 #ifndef SHARE_VM_OPTO_RUNTIME_HPP 26 #define SHARE_VM_OPTO_RUNTIME_HPP 27 28 #include "code/codeBlob.hpp" 29 #include "opto/machnode.hpp" 30 #include "opto/optoreg.hpp" 31 #include "opto/type.hpp" 32 #include "runtime/biasedLocking.hpp" 33 #include "runtime/rtmLocking.hpp" 34 #include "runtime/deoptimization.hpp" 35 #include "runtime/vframe.hpp" 36 37 //------------------------------OptoRuntime------------------------------------ 38 // Opto compiler runtime routines 39 // 40 // These are all generated from Ideal graphs. They are called with the 41 // Java calling convention. Internally they call C++. They are made once at 42 // startup time and Opto compiles calls to them later. 43 // Things are broken up into quads: the signature they will be called with, 44 // the address of the generated code, the corresponding C++ code and an 45 // nmethod. 46 47 // The signature (returned by "xxx_Type()") is used at startup time by the 48 // Generator to make the generated code "xxx_Java". Opto compiles calls 49 // to the generated code "xxx_Java". When the compiled code gets executed, 50 // it calls the C++ code "xxx_C". The generated nmethod is saved in the 51 // CodeCache. Exception handlers use the nmethod to get the callee-save 52 // register OopMaps. 53 class CallInfo; 54 55 // 56 // NamedCounters are tagged counters which can be used for profiling 57 // code in various ways. Currently they are used by the lock coarsening code 58 // 59 60 class NamedCounter : public CHeapObj<mtCompiler> { 61 public: 62 enum CounterTag { 63 NoTag, 64 LockCounter, 65 EliminatedLockCounter, 66 BiasedLockingCounter, 67 RTMLockingCounter 68 }; 69 70 private: 71 const char * _name; 72 int _count; 73 CounterTag _tag; 74 NamedCounter* _next; 75 76 public: 77 NamedCounter(const char *n, CounterTag tag = NoTag): 78 _name(n == NULL ? NULL : os::strdup(n)), 79 _count(0), 80 _next(NULL), 81 _tag(tag) {} 82 83 ~NamedCounter() { 84 if (_name != NULL) { 85 os::free((void*)_name); 86 } 87 } 88 89 const char * name() const { return _name; } 90 int count() const { return _count; } 91 address addr() { return (address)&_count; } 92 CounterTag tag() const { return _tag; } 93 void set_tag(CounterTag tag) { _tag = tag; } 94 95 NamedCounter* next() const { return _next; } 96 void set_next(NamedCounter* next) { 97 assert(_next == NULL || next == NULL, "already set"); 98 _next = next; 99 } 100 101 }; 102 103 class BiasedLockingNamedCounter : public NamedCounter { 104 private: 105 BiasedLockingCounters _counters; 106 107 public: 108 BiasedLockingNamedCounter(const char *n) : 109 NamedCounter(n, BiasedLockingCounter), _counters() {} 110 111 BiasedLockingCounters* counters() { return &_counters; } 112 }; 113 114 115 class RTMLockingNamedCounter : public NamedCounter { 116 private: 117 RTMLockingCounters _counters; 118 119 public: 120 RTMLockingNamedCounter(const char *n) : 121 NamedCounter(n, RTMLockingCounter), _counters() {} 122 123 RTMLockingCounters* counters() { return &_counters; } 124 }; 125 126 typedef const TypeFunc*(*TypeFunc_generator)(); 127 128 class OptoRuntime : public AllStatic { 129 friend class Matcher; // allow access to stub names 130 131 private: 132 // define stubs 133 static address generate_stub(ciEnv* ci_env, TypeFunc_generator gen, address C_function, const char *name, int is_fancy_jump, bool pass_tls, bool save_arguments, bool return_pc); 134 135 // References to generated stubs 136 static address _new_instance_Java; 137 static address _new_array_Java; 138 static address _new_array_nozero_Java; 139 static address _multianewarray2_Java; 140 static address _multianewarray3_Java; 141 static address _multianewarray4_Java; 142 static address _multianewarray5_Java; 143 static address _multianewarrayN_Java; 144 static address _g1_wb_pre_Java; 145 static address _g1_wb_post_Java; 146 static address _vtable_must_compile_Java; 147 static address _complete_monitor_locking_Java; 148 static address _rethrow_Java; 149 150 static address _slow_arraycopy_Java; 151 static address _register_finalizer_Java; 152 153 # ifdef ENABLE_ZAP_DEAD_LOCALS 154 static address _zap_dead_Java_locals_Java; 155 static address _zap_dead_native_locals_Java; 156 # endif 157 158 159 // 160 // Implementation of runtime methods 161 // ================================= 162 163 // Allocate storage for a Java instance. 164 static void new_instance_C(Klass* instance_klass, JavaThread *thread); 165 166 // Allocate storage for a objArray or typeArray 167 static void new_array_C(Klass* array_klass, int len, JavaThread *thread); 168 static void new_array_nozero_C(Klass* array_klass, int len, JavaThread *thread); 169 170 // Post-slow-path-allocation, pre-initializing-stores step for 171 // implementing ReduceInitialCardMarks 172 static void new_store_pre_barrier(JavaThread* thread); 173 174 // Allocate storage for a multi-dimensional arrays 175 // Note: needs to be fixed for arbitrary number of dimensions 176 static void multianewarray2_C(Klass* klass, int len1, int len2, JavaThread *thread); 177 static void multianewarray3_C(Klass* klass, int len1, int len2, int len3, JavaThread *thread); 178 static void multianewarray4_C(Klass* klass, int len1, int len2, int len3, int len4, JavaThread *thread); 179 static void multianewarray5_C(Klass* klass, int len1, int len2, int len3, int len4, int len5, JavaThread *thread); 180 static void multianewarrayN_C(Klass* klass, arrayOopDesc* dims, JavaThread *thread); 181 static void g1_wb_pre_C(oopDesc* orig, JavaThread* thread); 182 static void g1_wb_post_C(void* card_addr, JavaThread* thread); 183 184 public: 185 // Slow-path Locking and Unlocking 186 static void complete_monitor_locking_C(oopDesc* obj, BasicLock* lock, JavaThread* thread); 187 static void complete_monitor_unlocking_C(oopDesc* obj, BasicLock* lock); 188 189 private: 190 191 // Implicit exception support 192 static void throw_null_exception_C(JavaThread* thread); 193 194 // Exception handling 195 static address handle_exception_C (JavaThread* thread); 196 static address handle_exception_C_helper(JavaThread* thread, nmethod*& nm); 197 static address rethrow_C (oopDesc* exception, JavaThread *thread, address return_pc ); 198 static void deoptimize_caller_frame (JavaThread *thread); 199 static void deoptimize_caller_frame (JavaThread *thread, bool doit); 200 static bool is_deoptimized_caller_frame (JavaThread *thread); 201 202 // CodeBlob support 203 // =================================================================== 204 205 static ExceptionBlob* _exception_blob; 206 static void generate_exception_blob(); 207 208 static void register_finalizer(oopDesc* obj, JavaThread* thread); 209 210 // zaping dead locals, either from Java frames or from native frames 211 # ifdef ENABLE_ZAP_DEAD_LOCALS 212 static void zap_dead_Java_locals_C( JavaThread* thread); 213 static void zap_dead_native_locals_C( JavaThread* thread); 214 215 static void zap_dead_java_or_native_locals( JavaThread*, bool (*)(frame*)); 216 217 public: 218 static int ZapDeadCompiledLocals_count; 219 220 # endif 221 222 223 public: 224 225 static bool is_callee_saved_register(MachRegisterNumbers reg); 226 227 // One time only generate runtime code stubs. Returns true 228 // when runtime stubs have been generated successfully and 229 // false otherwise. 230 static bool generate(ciEnv* env); 231 232 // Returns the name of a stub 233 static const char* stub_name(address entry); 234 235 // access to runtime stubs entry points for java code 236 static address new_instance_Java() { return _new_instance_Java; } 237 static address new_array_Java() { return _new_array_Java; } 238 static address new_array_nozero_Java() { return _new_array_nozero_Java; } 239 static address multianewarray2_Java() { return _multianewarray2_Java; } 240 static address multianewarray3_Java() { return _multianewarray3_Java; } 241 static address multianewarray4_Java() { return _multianewarray4_Java; } 242 static address multianewarray5_Java() { return _multianewarray5_Java; } 243 static address multianewarrayN_Java() { return _multianewarrayN_Java; } 244 static address g1_wb_pre_Java() { return _g1_wb_pre_Java; } 245 static address g1_wb_post_Java() { return _g1_wb_post_Java; } 246 static address vtable_must_compile_stub() { return _vtable_must_compile_Java; } 247 static address complete_monitor_locking_Java() { return _complete_monitor_locking_Java; } 248 249 static address slow_arraycopy_Java() { return _slow_arraycopy_Java; } 250 static address register_finalizer_Java() { return _register_finalizer_Java; } 251 252 253 # ifdef ENABLE_ZAP_DEAD_LOCALS 254 static address zap_dead_locals_stub(bool is_native) { return is_native 255 ? _zap_dead_native_locals_Java 256 : _zap_dead_Java_locals_Java; } 257 static MachNode* node_to_call_zap_dead_locals(Node* n, int block_num, bool is_native); 258 # endif 259 260 static ExceptionBlob* exception_blob() { return _exception_blob; } 261 262 // Leaf routines helping with method data update 263 static void profile_receiver_type_C(DataLayout* data, oopDesc* receiver); 264 265 // Implicit exception support 266 static void throw_div0_exception_C (JavaThread* thread); 267 static void throw_stack_overflow_error_C(JavaThread* thread); 268 269 // Exception handling 270 static address rethrow_stub() { return _rethrow_Java; } 271 272 273 // Type functions 274 // ====================================================== 275 276 static const TypeFunc* new_instance_Type(); // object allocation (slow case) 277 static const TypeFunc* new_array_Type (); // [a]newarray (slow case) 278 static const TypeFunc* multianewarray_Type(int ndim); // multianewarray 279 static const TypeFunc* multianewarray2_Type(); // multianewarray 280 static const TypeFunc* multianewarray3_Type(); // multianewarray 281 static const TypeFunc* multianewarray4_Type(); // multianewarray 282 static const TypeFunc* multianewarray5_Type(); // multianewarray 283 static const TypeFunc* multianewarrayN_Type(); // multianewarray 284 static const TypeFunc* g1_wb_pre_Type(); 285 static const TypeFunc* g1_wb_post_Type(); 286 static const TypeFunc* complete_monitor_enter_Type(); 287 static const TypeFunc* complete_monitor_exit_Type(); 288 static const TypeFunc* uncommon_trap_Type(); 289 static const TypeFunc* athrow_Type(); 290 static const TypeFunc* rethrow_Type(); 291 static const TypeFunc* Math_D_D_Type(); // sin,cos & friends 292 static const TypeFunc* Math_DD_D_Type(); // mod,pow & friends 293 static const TypeFunc* modf_Type(); 294 static const TypeFunc* l2f_Type(); 295 static const TypeFunc* void_long_Type(); 296 297 static const TypeFunc* flush_windows_Type(); 298 299 // arraycopy routine types 300 static const TypeFunc* fast_arraycopy_Type(); // bit-blasters 301 static const TypeFunc* checkcast_arraycopy_Type(); 302 static const TypeFunc* generic_arraycopy_Type(); 303 static const TypeFunc* slow_arraycopy_Type(); // the full routine 304 305 static const TypeFunc* array_fill_Type(); 306 307 static const TypeFunc* aescrypt_block_Type(); 308 static const TypeFunc* cipherBlockChaining_aescrypt_Type(); 309 310 static const TypeFunc* sha_implCompress_Type(); 311 static const TypeFunc* digestBase_implCompressMB_Type(); 312 313 static const TypeFunc* multiplyToLen_Type(); 314 315 static const TypeFunc* updateBytesCRC32_Type(); 316 317 // leaf on stack replacement interpreter accessor types 318 static const TypeFunc* osr_end_Type(); 319 320 // leaf methodData routine types 321 static const TypeFunc* profile_receiver_type_Type(); 322 323 // leaf on stack replacement interpreter accessor types 324 static const TypeFunc* fetch_int_Type(); 325 static const TypeFunc* fetch_long_Type(); 326 static const TypeFunc* fetch_float_Type(); 327 static const TypeFunc* fetch_double_Type(); 328 static const TypeFunc* fetch_oop_Type(); 329 static const TypeFunc* fetch_monitor_Type(); 330 331 static const TypeFunc* register_finalizer_Type(); 332 333 // Dtrace support 334 static const TypeFunc* dtrace_method_entry_exit_Type(); 335 static const TypeFunc* dtrace_object_alloc_Type(); 336 337 # ifdef ENABLE_ZAP_DEAD_LOCALS 338 static const TypeFunc* zap_dead_locals_Type(); 339 # endif 340 341 private: 342 static NamedCounter * volatile _named_counters; 343 344 public: 345 // helper function which creates a named counter labeled with the 346 // if they are available 347 static NamedCounter* new_named_counter(JVMState* jvms, NamedCounter::CounterTag tag); 348 349 // dumps all the named counters 350 static void print_named_counters(); 351 352 }; 353 354 #endif // SHARE_VM_OPTO_RUNTIME_HPP