1 /* 2 * Copyright (c) 1998, 2021, 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_OPTO_RUNTIME_HPP 26 #define SHARE_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/rtmLocking.hpp" 33 #include "runtime/deoptimization.hpp" 34 #include "runtime/vframe.hpp" 35 36 //------------------------------OptoRuntime------------------------------------ 37 // Opto compiler runtime routines 38 // 39 // These are all generated from Ideal graphs. They are called with the 40 // Java calling convention. Internally they call C++. They are made once at 41 // startup time and Opto compiles calls to them later. 42 // Things are broken up into quads: the signature they will be called with, 43 // the address of the generated code, the corresponding C++ code and an 44 // nmethod. 45 46 // The signature (returned by "xxx_Type()") is used at startup time by the 47 // Generator to make the generated code "xxx_Java". Opto compiles calls 48 // to the generated code "xxx_Java". When the compiled code gets executed, 49 // it calls the C++ code "xxx_C". The generated nmethod is saved in the 50 // CodeCache. Exception handlers use the nmethod to get the callee-save 51 // register OopMaps. 52 class CallInfo; 53 54 // 55 // NamedCounters are tagged counters which can be used for profiling 56 // code in various ways. Currently they are used by the lock coarsening code 57 // 58 59 class NamedCounter : public CHeapObj<mtCompiler> { 60 public: 61 enum CounterTag { 62 NoTag, 63 LockCounter, 64 EliminatedLockCounter, 65 RTMLockingCounter 66 }; 67 68 private: 69 const char * _name; 70 int _count; 71 CounterTag _tag; 72 NamedCounter* _next; 73 74 public: 75 NamedCounter(const char *n, CounterTag tag = NoTag): 76 _name(n == NULL ? NULL : os::strdup(n)), 77 _count(0), 78 _tag(tag), 79 _next(NULL) {} 80 81 ~NamedCounter() { 82 if (_name != NULL) { 83 os::free((void*)_name); 84 } 85 } 86 87 const char * name() const { return _name; } 88 int count() const { return _count; } 89 address addr() { return (address)&_count; } 90 CounterTag tag() const { return _tag; } 91 void set_tag(CounterTag tag) { _tag = tag; } 92 93 NamedCounter* next() const { return _next; } 94 void set_next(NamedCounter* next) { 95 assert(_next == NULL || next == NULL, "already set"); 96 _next = next; 97 } 98 99 }; 100 101 class RTMLockingNamedCounter : public NamedCounter { 102 private: 103 RTMLockingCounters _counters; 104 105 public: 106 RTMLockingNamedCounter(const char *n) : 107 NamedCounter(n, RTMLockingCounter), _counters() {} 108 109 RTMLockingCounters* counters() { return &_counters; } 110 }; 111 112 typedef const TypeFunc*(*TypeFunc_generator)(); 113 114 class OptoRuntime : public AllStatic { 115 friend class Matcher; // allow access to stub names 116 117 private: 118 // define stubs 119 static address generate_stub(ciEnv* ci_env, TypeFunc_generator gen, address C_function, const char* name, int is_fancy_jump, bool pass_tls, bool return_pc); 120 121 // References to generated stubs 122 static address _new_instance_Java; 123 static address _new_array_Java; 124 static address _new_array_nozero_Java; 125 static address _multianewarray2_Java; 126 static address _multianewarray3_Java; 127 static address _multianewarray4_Java; 128 static address _multianewarray5_Java; 129 static address _multianewarrayN_Java; 130 static address _vtable_must_compile_Java; 131 static address _complete_monitor_locking_Java; 132 static address _rethrow_Java; 133 static address _monitor_notify_Java; 134 static address _monitor_notifyAll_Java; 135 136 static address _slow_arraycopy_Java; 137 static address _register_finalizer_Java; 138 static address _load_unknown_inline; 139 140 // 141 // Implementation of runtime methods 142 // ================================= 143 144 // Allocate storage for a Java instance. 145 static void new_instance_C(Klass* instance_klass, bool is_larval, JavaThread* current); 146 147 // Allocate storage for a objArray or typeArray 148 static void new_array_C(Klass* array_klass, int len, JavaThread* current); 149 static void new_array_nozero_C(Klass* array_klass, int len, JavaThread* current); 150 151 // Allocate storage for a multi-dimensional arrays 152 // Note: needs to be fixed for arbitrary number of dimensions 153 static void multianewarray2_C(Klass* klass, int len1, int len2, JavaThread* current); 154 static void multianewarray3_C(Klass* klass, int len1, int len2, int len3, JavaThread* current); 155 static void multianewarray4_C(Klass* klass, int len1, int len2, int len3, int len4, JavaThread* current); 156 static void multianewarray5_C(Klass* klass, int len1, int len2, int len3, int len4, int len5, JavaThread* current); 157 static void multianewarrayN_C(Klass* klass, arrayOopDesc* dims, JavaThread* current); 158 159 public: 160 static void monitor_notify_C(oopDesc* obj, JavaThread* current); 161 static void monitor_notifyAll_C(oopDesc* obj, JavaThread* current); 162 163 private: 164 165 // Implicit exception support 166 static void throw_null_exception_C(JavaThread* thread); 167 168 // Exception handling 169 static address handle_exception_C (JavaThread* current); 170 static address handle_exception_C_helper(JavaThread* current, nmethod*& nm); 171 static address rethrow_C (oopDesc* exception, JavaThread *thread, address return_pc ); 172 static void deoptimize_caller_frame (JavaThread *thread); 173 static void deoptimize_caller_frame (JavaThread *thread, bool doit); 174 static bool is_deoptimized_caller_frame (JavaThread *thread); 175 176 // CodeBlob support 177 // =================================================================== 178 179 static ExceptionBlob* _exception_blob; 180 static void generate_exception_blob(); 181 182 static void register_finalizer(oopDesc* obj, JavaThread* current); 183 184 public: 185 186 static bool is_callee_saved_register(MachRegisterNumbers reg); 187 188 // One time only generate runtime code stubs. Returns true 189 // when runtime stubs have been generated successfully and 190 // false otherwise. 191 static bool generate(ciEnv* env); 192 193 // Returns the name of a stub 194 static const char* stub_name(address entry); 195 196 // access to runtime stubs entry points for java code 197 static address new_instance_Java() { return _new_instance_Java; } 198 static address new_array_Java() { return _new_array_Java; } 199 static address new_array_nozero_Java() { return _new_array_nozero_Java; } 200 static address multianewarray2_Java() { return _multianewarray2_Java; } 201 static address multianewarray3_Java() { return _multianewarray3_Java; } 202 static address multianewarray4_Java() { return _multianewarray4_Java; } 203 static address multianewarray5_Java() { return _multianewarray5_Java; } 204 static address multianewarrayN_Java() { return _multianewarrayN_Java; } 205 static address vtable_must_compile_stub() { return _vtable_must_compile_Java; } 206 static address complete_monitor_locking_Java() { return _complete_monitor_locking_Java; } 207 static address monitor_notify_Java() { return _monitor_notify_Java; } 208 static address monitor_notifyAll_Java() { return _monitor_notifyAll_Java; } 209 210 static address slow_arraycopy_Java() { return _slow_arraycopy_Java; } 211 static address register_finalizer_Java() { return _register_finalizer_Java; } 212 static address load_unknown_inline_Java() { return _load_unknown_inline; } 213 214 static ExceptionBlob* exception_blob() { return _exception_blob; } 215 216 // Implicit exception support 217 static void throw_div0_exception_C (JavaThread* thread); 218 static void throw_stack_overflow_error_C(JavaThread* thread); 219 220 // Exception handling 221 static address rethrow_stub() { return _rethrow_Java; } 222 223 224 // Type functions 225 // ====================================================== 226 227 static const TypeFunc* new_instance_Type(); // object allocation (slow case) 228 static const TypeFunc* new_array_Type (); // [a]newarray (slow case) 229 static const TypeFunc* multianewarray_Type(int ndim); // multianewarray 230 static const TypeFunc* multianewarray2_Type(); // multianewarray 231 static const TypeFunc* multianewarray3_Type(); // multianewarray 232 static const TypeFunc* multianewarray4_Type(); // multianewarray 233 static const TypeFunc* multianewarray5_Type(); // multianewarray 234 static const TypeFunc* multianewarrayN_Type(); // multianewarray 235 static const TypeFunc* complete_monitor_enter_Type(); 236 static const TypeFunc* complete_monitor_exit_Type(); 237 static const TypeFunc* monitor_notify_Type(); 238 static const TypeFunc* uncommon_trap_Type(); 239 static const TypeFunc* athrow_Type(); 240 static const TypeFunc* rethrow_Type(); 241 static const TypeFunc* Math_D_D_Type(); // sin,cos & friends 242 static const TypeFunc* Math_DD_D_Type(); // mod,pow & friends 243 static const TypeFunc* Math_Vector_Vector_Type(uint num_arg, const TypeVect* in_type, const TypeVect* out_type); 244 static const TypeFunc* modf_Type(); 245 static const TypeFunc* l2f_Type(); 246 static const TypeFunc* void_long_Type(); 247 248 static const TypeFunc* flush_windows_Type(); 249 250 // arraycopy routine types 251 static const TypeFunc* fast_arraycopy_Type(); // bit-blasters 252 static const TypeFunc* checkcast_arraycopy_Type(); 253 static const TypeFunc* generic_arraycopy_Type(); 254 static const TypeFunc* slow_arraycopy_Type(); // the full routine 255 256 static const TypeFunc* array_fill_Type(); 257 258 static const TypeFunc* aescrypt_block_Type(); 259 static const TypeFunc* cipherBlockChaining_aescrypt_Type(); 260 static const TypeFunc* electronicCodeBook_aescrypt_Type(); 261 static const TypeFunc* counterMode_aescrypt_Type(); 262 static const TypeFunc* galoisCounterMode_aescrypt_Type(); 263 264 static const TypeFunc* digestBase_implCompress_Type(bool is_sha3); 265 static const TypeFunc* digestBase_implCompressMB_Type(bool is_sha3); 266 267 static const TypeFunc* multiplyToLen_Type(); 268 static const TypeFunc* montgomeryMultiply_Type(); 269 static const TypeFunc* montgomerySquare_Type(); 270 271 static const TypeFunc* squareToLen_Type(); 272 273 static const TypeFunc* mulAdd_Type(); 274 275 static const TypeFunc* bigIntegerShift_Type(); 276 277 static const TypeFunc* vectorizedMismatch_Type(); 278 279 static const TypeFunc* ghash_processBlocks_Type(); 280 static const TypeFunc* base64_encodeBlock_Type(); 281 static const TypeFunc* base64_decodeBlock_Type(); 282 283 static const TypeFunc* updateBytesCRC32_Type(); 284 static const TypeFunc* updateBytesCRC32C_Type(); 285 286 static const TypeFunc* updateBytesAdler32_Type(); 287 288 // leaf on stack replacement interpreter accessor types 289 static const TypeFunc* osr_end_Type(); 290 291 static const TypeFunc* register_finalizer_Type(); 292 293 JFR_ONLY(static const TypeFunc* get_class_id_intrinsic_Type();) 294 295 // Dtrace support 296 static const TypeFunc* dtrace_method_entry_exit_Type(); 297 static const TypeFunc* dtrace_object_alloc_Type(); 298 299 static const TypeFunc* store_inline_type_fields_Type(); 300 static const TypeFunc* pack_inline_type_Type(); 301 302 static void load_unknown_inline(flatArrayOopDesc* array, int index, JavaThread* current); 303 static const TypeFunc* load_unknown_inline_type(); 304 static void store_unknown_inline(instanceOopDesc* buffer, flatArrayOopDesc* array, int index); 305 static const TypeFunc* store_unknown_inline_type(); 306 307 private: 308 static NamedCounter * volatile _named_counters; 309 310 public: 311 // helper function which creates a named counter labeled with the 312 // if they are available 313 static NamedCounter* new_named_counter(JVMState* jvms, NamedCounter::CounterTag tag); 314 315 // dumps all the named counters 316 static void print_named_counters(); 317 318 }; 319 320 #endif // SHARE_OPTO_RUNTIME_HPP