Thu, 27 Dec 2018 11:43:33 +0800
Merge
aoqi@0 | 1 | /* |
shshahma@9305 | 2 | * Copyright (c) 1997, 2018, Oracle and/or its affiliates. All rights reserved. |
aoqi@0 | 3 | * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. |
aoqi@0 | 4 | * |
aoqi@0 | 5 | * This code is free software; you can redistribute it and/or modify it |
aoqi@0 | 6 | * under the terms of the GNU General Public License version 2 only, as |
aoqi@0 | 7 | * published by the Free Software Foundation. |
aoqi@0 | 8 | * |
aoqi@0 | 9 | * This code is distributed in the hope that it will be useful, but WITHOUT |
aoqi@0 | 10 | * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or |
aoqi@0 | 11 | * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License |
aoqi@0 | 12 | * version 2 for more details (a copy is included in the LICENSE file that |
aoqi@0 | 13 | * accompanied this code). |
aoqi@0 | 14 | * |
aoqi@0 | 15 | * You should have received a copy of the GNU General Public License version |
aoqi@0 | 16 | * 2 along with this work; if not, write to the Free Software Foundation, |
aoqi@0 | 17 | * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. |
aoqi@0 | 18 | * |
aoqi@0 | 19 | * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA |
aoqi@0 | 20 | * or visit www.oracle.com if you need additional information or have any |
aoqi@0 | 21 | * questions. |
aoqi@0 | 22 | * |
aoqi@0 | 23 | */ |
aoqi@0 | 24 | |
aoqi@1 | 25 | /* |
aoqi@1 | 26 | * This file has been modified by Loongson Technology in 2015. These |
aoqi@1 | 27 | * modifications are Copyright (c) 2015 Loongson Technology, and are made |
aoqi@1 | 28 | * available on the same license terms set forth above. |
aoqi@1 | 29 | */ |
aoqi@1 | 30 | |
aoqi@0 | 31 | #ifndef SHARE_VM_RUNTIME_SHAREDRUNTIME_HPP |
aoqi@0 | 32 | #define SHARE_VM_RUNTIME_SHAREDRUNTIME_HPP |
aoqi@0 | 33 | |
aoqi@0 | 34 | #include "interpreter/bytecodeHistogram.hpp" |
aoqi@0 | 35 | #include "interpreter/bytecodeTracer.hpp" |
aoqi@0 | 36 | #include "interpreter/linkResolver.hpp" |
aoqi@0 | 37 | #include "memory/allocation.hpp" |
aoqi@0 | 38 | #include "memory/resourceArea.hpp" |
aoqi@0 | 39 | #include "runtime/threadLocalStorage.hpp" |
aoqi@0 | 40 | #include "utilities/hashtable.hpp" |
aoqi@0 | 41 | #include "utilities/macros.hpp" |
aoqi@0 | 42 | |
aoqi@0 | 43 | class AdapterHandlerEntry; |
aoqi@0 | 44 | class AdapterHandlerTable; |
aoqi@0 | 45 | class AdapterFingerPrint; |
aoqi@0 | 46 | class vframeStream; |
aoqi@0 | 47 | |
aoqi@0 | 48 | // Runtime is the base class for various runtime interfaces |
aoqi@0 | 49 | // (InterpreterRuntime, CompilerRuntime, etc.). It provides |
aoqi@0 | 50 | // shared functionality such as exception forwarding (C++ to |
aoqi@0 | 51 | // Java exceptions), locking/unlocking mechanisms, statistical |
aoqi@0 | 52 | // information, etc. |
aoqi@0 | 53 | |
aoqi@0 | 54 | class SharedRuntime: AllStatic { |
aoqi@0 | 55 | friend class VMStructs; |
aoqi@0 | 56 | |
aoqi@0 | 57 | private: |
aoqi@0 | 58 | static methodHandle resolve_sub_helper(JavaThread *thread, |
aoqi@0 | 59 | bool is_virtual, |
aoqi@0 | 60 | bool is_optimized, TRAPS); |
aoqi@0 | 61 | |
aoqi@0 | 62 | // Shared stub locations |
aoqi@0 | 63 | |
aoqi@0 | 64 | static RuntimeStub* _wrong_method_blob; |
aoqi@0 | 65 | static RuntimeStub* _wrong_method_abstract_blob; |
aoqi@0 | 66 | static RuntimeStub* _ic_miss_blob; |
aoqi@0 | 67 | static RuntimeStub* _resolve_opt_virtual_call_blob; |
aoqi@0 | 68 | static RuntimeStub* _resolve_virtual_call_blob; |
aoqi@0 | 69 | static RuntimeStub* _resolve_static_call_blob; |
aoqi@0 | 70 | |
aoqi@0 | 71 | static DeoptimizationBlob* _deopt_blob; |
aoqi@0 | 72 | |
aoqi@0 | 73 | static SafepointBlob* _polling_page_vectors_safepoint_handler_blob; |
aoqi@0 | 74 | static SafepointBlob* _polling_page_safepoint_handler_blob; |
aoqi@0 | 75 | static SafepointBlob* _polling_page_return_handler_blob; |
aoqi@0 | 76 | |
aoqi@0 | 77 | #ifdef COMPILER2 |
aoqi@0 | 78 | static UncommonTrapBlob* _uncommon_trap_blob; |
aoqi@0 | 79 | #endif // COMPILER2 |
aoqi@0 | 80 | |
aoqi@0 | 81 | #ifndef PRODUCT |
aoqi@0 | 82 | // Counters |
aoqi@0 | 83 | static int _nof_megamorphic_calls; // total # of megamorphic calls (through vtable) |
aoqi@0 | 84 | #endif // !PRODUCT |
aoqi@0 | 85 | |
aoqi@0 | 86 | private: |
aoqi@0 | 87 | enum { POLL_AT_RETURN, POLL_AT_LOOP, POLL_AT_VECTOR_LOOP }; |
aoqi@0 | 88 | static SafepointBlob* generate_handler_blob(address call_ptr, int poll_type); |
aoqi@0 | 89 | static RuntimeStub* generate_resolve_blob(address destination, const char* name); |
aoqi@0 | 90 | |
aoqi@0 | 91 | public: |
aoqi@0 | 92 | static void generate_stubs(void); |
aoqi@0 | 93 | |
aoqi@0 | 94 | // max bytes for each dtrace string parameter |
aoqi@0 | 95 | enum { max_dtrace_string_size = 256 }; |
aoqi@0 | 96 | |
aoqi@0 | 97 | // The following arithmetic routines are used on platforms that do |
aoqi@0 | 98 | // not have machine instructions to implement their functionality. |
aoqi@0 | 99 | // Do not remove these. |
aoqi@0 | 100 | |
aoqi@0 | 101 | // long arithmetics |
aoqi@0 | 102 | static jlong lmul(jlong y, jlong x); |
aoqi@0 | 103 | static jlong ldiv(jlong y, jlong x); |
aoqi@0 | 104 | static jlong lrem(jlong y, jlong x); |
aoqi@0 | 105 | |
aoqi@0 | 106 | // float and double remainder |
aoqi@0 | 107 | static jfloat frem(jfloat x, jfloat y); |
aoqi@0 | 108 | static jdouble drem(jdouble x, jdouble y); |
aoqi@0 | 109 | |
aoqi@0 | 110 | #ifdef __SOFTFP__ |
aoqi@0 | 111 | static jfloat fadd(jfloat x, jfloat y); |
aoqi@0 | 112 | static jfloat fsub(jfloat x, jfloat y); |
aoqi@0 | 113 | static jfloat fmul(jfloat x, jfloat y); |
aoqi@0 | 114 | static jfloat fdiv(jfloat x, jfloat y); |
aoqi@0 | 115 | |
aoqi@0 | 116 | static jdouble dadd(jdouble x, jdouble y); |
aoqi@0 | 117 | static jdouble dsub(jdouble x, jdouble y); |
aoqi@0 | 118 | static jdouble dmul(jdouble x, jdouble y); |
aoqi@0 | 119 | static jdouble ddiv(jdouble x, jdouble y); |
aoqi@0 | 120 | #endif // __SOFTFP__ |
aoqi@0 | 121 | |
aoqi@0 | 122 | // float conversion (needs to set appropriate rounding mode) |
aoqi@0 | 123 | static jint f2i (jfloat x); |
aoqi@0 | 124 | static jlong f2l (jfloat x); |
aoqi@0 | 125 | static jint d2i (jdouble x); |
aoqi@0 | 126 | static jlong d2l (jdouble x); |
aoqi@0 | 127 | static jfloat d2f (jdouble x); |
aoqi@0 | 128 | static jfloat l2f (jlong x); |
aoqi@0 | 129 | static jdouble l2d (jlong x); |
aoqi@0 | 130 | |
aoqi@0 | 131 | #ifdef __SOFTFP__ |
aoqi@0 | 132 | static jfloat i2f (jint x); |
aoqi@0 | 133 | static jdouble i2d (jint x); |
aoqi@0 | 134 | static jdouble f2d (jfloat x); |
aoqi@0 | 135 | #endif // __SOFTFP__ |
aoqi@0 | 136 | |
aoqi@0 | 137 | // double trigonometrics and transcendentals |
aoqi@0 | 138 | static jdouble dsin(jdouble x); |
aoqi@0 | 139 | static jdouble dcos(jdouble x); |
aoqi@0 | 140 | static jdouble dtan(jdouble x); |
aoqi@0 | 141 | static jdouble dlog(jdouble x); |
aoqi@0 | 142 | static jdouble dlog10(jdouble x); |
aoqi@0 | 143 | static jdouble dexp(jdouble x); |
aoqi@0 | 144 | static jdouble dpow(jdouble x, jdouble y); |
aoqi@0 | 145 | |
aoqi@0 | 146 | #if defined(__SOFTFP__) || defined(E500V2) |
aoqi@0 | 147 | static double dabs(double f); |
aoqi@0 | 148 | #endif |
aoqi@0 | 149 | |
aoqi@0 | 150 | #if defined(__SOFTFP__) || defined(PPC32) |
aoqi@0 | 151 | static double dsqrt(double f); |
aoqi@0 | 152 | #endif |
aoqi@0 | 153 | |
vkempik@8318 | 154 | // Montgomery multiplication |
vkempik@8318 | 155 | static void montgomery_multiply(jint *a_ints, jint *b_ints, jint *n_ints, |
vkempik@8318 | 156 | jint len, jlong inv, jint *m_ints); |
vkempik@8318 | 157 | static void montgomery_square(jint *a_ints, jint *n_ints, |
vkempik@8318 | 158 | jint len, jlong inv, jint *m_ints); |
vkempik@8318 | 159 | |
aoqi@0 | 160 | #ifdef __SOFTFP__ |
aoqi@0 | 161 | // C++ compiler generates soft float instructions as well as passing |
aoqi@0 | 162 | // float and double in registers. |
aoqi@0 | 163 | static int fcmpl(float x, float y); |
aoqi@0 | 164 | static int fcmpg(float x, float y); |
aoqi@0 | 165 | static int dcmpl(double x, double y); |
aoqi@0 | 166 | static int dcmpg(double x, double y); |
aoqi@0 | 167 | |
aoqi@0 | 168 | static int unordered_fcmplt(float x, float y); |
aoqi@0 | 169 | static int unordered_dcmplt(double x, double y); |
aoqi@0 | 170 | static int unordered_fcmple(float x, float y); |
aoqi@0 | 171 | static int unordered_dcmple(double x, double y); |
aoqi@0 | 172 | static int unordered_fcmpge(float x, float y); |
aoqi@0 | 173 | static int unordered_dcmpge(double x, double y); |
aoqi@0 | 174 | static int unordered_fcmpgt(float x, float y); |
aoqi@0 | 175 | static int unordered_dcmpgt(double x, double y); |
aoqi@0 | 176 | |
aoqi@0 | 177 | static float fneg(float f); |
aoqi@0 | 178 | static double dneg(double f); |
aoqi@0 | 179 | #endif |
aoqi@0 | 180 | |
aoqi@0 | 181 | // exception handling across interpreter/compiler boundaries |
aoqi@0 | 182 | static address raw_exception_handler_for_return_address(JavaThread* thread, address return_address); |
aoqi@0 | 183 | static address exception_handler_for_return_address(JavaThread* thread, address return_address); |
aoqi@0 | 184 | |
aoqi@0 | 185 | #if INCLUDE_ALL_GCS |
aoqi@0 | 186 | // G1 write barriers |
aoqi@0 | 187 | static void g1_wb_pre(oopDesc* orig, JavaThread *thread); |
aoqi@0 | 188 | static void g1_wb_post(void* card_addr, JavaThread* thread); |
aoqi@0 | 189 | #endif // INCLUDE_ALL_GCS |
aoqi@0 | 190 | |
aoqi@0 | 191 | // exception handling and implicit exceptions |
aoqi@0 | 192 | static address compute_compiled_exc_handler(nmethod* nm, address ret_pc, Handle& exception, |
shshahma@9305 | 193 | bool force_unwind, bool top_frame_only, bool& recursive_exception_occurred); |
aoqi@0 | 194 | enum ImplicitExceptionKind { |
aoqi@0 | 195 | IMPLICIT_NULL, |
aoqi@0 | 196 | IMPLICIT_DIVIDE_BY_ZERO, |
aoqi@0 | 197 | STACK_OVERFLOW |
aoqi@0 | 198 | }; |
aoqi@0 | 199 | static void throw_AbstractMethodError(JavaThread* thread); |
aoqi@0 | 200 | static void throw_IncompatibleClassChangeError(JavaThread* thread); |
aoqi@0 | 201 | static void throw_ArithmeticException(JavaThread* thread); |
aoqi@0 | 202 | static void throw_NullPointerException(JavaThread* thread); |
aoqi@0 | 203 | static void throw_NullPointerException_at_call(JavaThread* thread); |
aoqi@0 | 204 | static void throw_StackOverflowError(JavaThread* thread); |
aoqi@0 | 205 | static address continuation_for_implicit_exception(JavaThread* thread, |
aoqi@0 | 206 | address faulting_pc, |
aoqi@0 | 207 | ImplicitExceptionKind exception_kind); |
aoqi@0 | 208 | |
aoqi@0 | 209 | // Shared stub locations |
aoqi@0 | 210 | static address get_poll_stub(address pc); |
aoqi@0 | 211 | |
aoqi@0 | 212 | static address get_ic_miss_stub() { |
aoqi@0 | 213 | assert(_ic_miss_blob!= NULL, "oops"); |
aoqi@0 | 214 | return _ic_miss_blob->entry_point(); |
aoqi@0 | 215 | } |
aoqi@0 | 216 | |
aoqi@0 | 217 | static address get_handle_wrong_method_stub() { |
aoqi@0 | 218 | assert(_wrong_method_blob!= NULL, "oops"); |
aoqi@0 | 219 | return _wrong_method_blob->entry_point(); |
aoqi@0 | 220 | } |
aoqi@0 | 221 | |
aoqi@0 | 222 | static address get_handle_wrong_method_abstract_stub() { |
aoqi@0 | 223 | assert(_wrong_method_abstract_blob!= NULL, "oops"); |
aoqi@0 | 224 | return _wrong_method_abstract_blob->entry_point(); |
aoqi@0 | 225 | } |
aoqi@0 | 226 | |
aoqi@0 | 227 | #ifdef COMPILER2 |
aoqi@0 | 228 | static void generate_uncommon_trap_blob(void); |
aoqi@0 | 229 | static UncommonTrapBlob* uncommon_trap_blob() { return _uncommon_trap_blob; } |
aoqi@0 | 230 | #endif // COMPILER2 |
aoqi@0 | 231 | |
aoqi@0 | 232 | static address get_resolve_opt_virtual_call_stub(){ |
aoqi@0 | 233 | assert(_resolve_opt_virtual_call_blob != NULL, "oops"); |
aoqi@0 | 234 | return _resolve_opt_virtual_call_blob->entry_point(); |
aoqi@0 | 235 | } |
aoqi@0 | 236 | static address get_resolve_virtual_call_stub() { |
aoqi@0 | 237 | assert(_resolve_virtual_call_blob != NULL, "oops"); |
aoqi@0 | 238 | return _resolve_virtual_call_blob->entry_point(); |
aoqi@0 | 239 | } |
aoqi@0 | 240 | static address get_resolve_static_call_stub() { |
aoqi@0 | 241 | assert(_resolve_static_call_blob != NULL, "oops"); |
aoqi@0 | 242 | return _resolve_static_call_blob->entry_point(); |
aoqi@0 | 243 | } |
aoqi@0 | 244 | |
aoqi@0 | 245 | static SafepointBlob* polling_page_return_handler_blob() { return _polling_page_return_handler_blob; } |
aoqi@0 | 246 | static SafepointBlob* polling_page_safepoint_handler_blob() { return _polling_page_safepoint_handler_blob; } |
aoqi@0 | 247 | static SafepointBlob* polling_page_vectors_safepoint_handler_blob() { return _polling_page_vectors_safepoint_handler_blob; } |
aoqi@0 | 248 | |
aoqi@0 | 249 | // Counters |
aoqi@0 | 250 | #ifndef PRODUCT |
aoqi@0 | 251 | static address nof_megamorphic_calls_addr() { return (address)&_nof_megamorphic_calls; } |
aoqi@0 | 252 | #endif // PRODUCT |
aoqi@0 | 253 | |
aoqi@0 | 254 | // Helper routine for full-speed JVMTI exception throwing support |
aoqi@0 | 255 | static void throw_and_post_jvmti_exception(JavaThread *thread, Handle h_exception); |
aoqi@0 | 256 | static void throw_and_post_jvmti_exception(JavaThread *thread, Symbol* name, const char *message = NULL); |
aoqi@0 | 257 | |
aoqi@0 | 258 | // RedefineClasses() tracing support for obsolete method entry |
aoqi@0 | 259 | static int rc_trace_method_entry(JavaThread* thread, Method* m); |
aoqi@0 | 260 | |
aoqi@0 | 261 | // To be used as the entry point for unresolved native methods. |
aoqi@0 | 262 | static address native_method_throw_unsatisfied_link_error_entry(); |
aoqi@0 | 263 | static address native_method_throw_unsupported_operation_exception_entry(); |
aoqi@0 | 264 | |
aoqi@0 | 265 | // bytecode tracing is only used by the TraceBytecodes |
aoqi@0 | 266 | static intptr_t trace_bytecode(JavaThread* thread, intptr_t preserve_this_value, intptr_t tos, intptr_t tos2) PRODUCT_RETURN0; |
aoqi@0 | 267 | |
aoqi@0 | 268 | // Used to back off a spin lock that is under heavy contention |
aoqi@0 | 269 | static void yield_all(JavaThread* thread, int attempts = 0); |
aoqi@0 | 270 | |
aoqi@0 | 271 | static oop retrieve_receiver( Symbol* sig, frame caller ); |
aoqi@0 | 272 | |
aoqi@0 | 273 | static void register_finalizer(JavaThread* thread, oopDesc* obj); |
aoqi@0 | 274 | |
aoqi@0 | 275 | // dtrace notifications |
aoqi@0 | 276 | static int dtrace_object_alloc(oopDesc* o, int size); |
aoqi@0 | 277 | static int dtrace_object_alloc_base(Thread* thread, oopDesc* o, int size); |
aoqi@0 | 278 | static int dtrace_method_entry(JavaThread* thread, Method* m); |
aoqi@0 | 279 | static int dtrace_method_exit(JavaThread* thread, Method* m); |
aoqi@0 | 280 | |
aoqi@0 | 281 | // Utility method for retrieving the Java thread id, returns 0 if the |
aoqi@0 | 282 | // thread is not a well formed Java thread. |
aoqi@0 | 283 | static jlong get_java_tid(Thread* thread); |
aoqi@0 | 284 | |
aoqi@0 | 285 | |
aoqi@0 | 286 | // used by native wrappers to reenable yellow if overflow happened in native code |
aoqi@0 | 287 | static void reguard_yellow_pages(); |
aoqi@0 | 288 | |
aoqi@0 | 289 | /** |
aoqi@0 | 290 | * Fill in the "X cannot be cast to a Y" message for ClassCastException |
aoqi@0 | 291 | * |
aoqi@0 | 292 | * @param thr the current thread |
aoqi@0 | 293 | * @param name the name of the class of the object attempted to be cast |
aoqi@0 | 294 | * @return the dynamically allocated exception message (must be freed |
aoqi@0 | 295 | * by the caller using a resource mark) |
aoqi@0 | 296 | * |
aoqi@0 | 297 | * BCP must refer to the current 'checkcast' opcode for the frame |
aoqi@0 | 298 | * on top of the stack. |
aoqi@0 | 299 | * The caller (or one of it's callers) must use a ResourceMark |
aoqi@0 | 300 | * in order to correctly free the result. |
aoqi@0 | 301 | */ |
aoqi@0 | 302 | static char* generate_class_cast_message(JavaThread* thr, const char* name); |
aoqi@0 | 303 | |
aoqi@0 | 304 | /** |
aoqi@0 | 305 | * Fill in the "X cannot be cast to a Y" message for ClassCastException |
aoqi@0 | 306 | * |
aoqi@0 | 307 | * @param name the name of the class of the object attempted to be cast |
aoqi@0 | 308 | * @param klass the name of the target klass attempt |
aoqi@0 | 309 | * @param gripe the specific kind of problem being reported |
aoqi@0 | 310 | * @return the dynamically allocated exception message (must be freed |
aoqi@0 | 311 | * by the caller using a resource mark) |
aoqi@0 | 312 | * |
aoqi@0 | 313 | * This version does not require access the frame, so it can be called |
aoqi@0 | 314 | * from interpreted code |
aoqi@0 | 315 | * The caller (or one of it's callers) must use a ResourceMark |
aoqi@0 | 316 | * in order to correctly free the result. |
aoqi@0 | 317 | */ |
aoqi@0 | 318 | static char* generate_class_cast_message(const char* name, const char* klass, |
aoqi@0 | 319 | const char* gripe = " cannot be cast to "); |
aoqi@0 | 320 | |
aoqi@0 | 321 | // Resolves a call site- may patch in the destination of the call into the |
aoqi@0 | 322 | // compiled code. |
aoqi@0 | 323 | static methodHandle resolve_helper(JavaThread *thread, |
aoqi@0 | 324 | bool is_virtual, |
aoqi@0 | 325 | bool is_optimized, TRAPS); |
aoqi@0 | 326 | |
aoqi@0 | 327 | private: |
aoqi@0 | 328 | // deopt blob |
aoqi@0 | 329 | static void generate_deopt_blob(void); |
aoqi@0 | 330 | |
aoqi@0 | 331 | public: |
aoqi@0 | 332 | static DeoptimizationBlob* deopt_blob(void) { return _deopt_blob; } |
aoqi@0 | 333 | |
aoqi@0 | 334 | // Resets a call-site in compiled code so it will get resolved again. |
aoqi@0 | 335 | static methodHandle reresolve_call_site(JavaThread *thread, TRAPS); |
aoqi@0 | 336 | |
aoqi@0 | 337 | // In the code prolog, if the klass comparison fails, the inline cache |
aoqi@0 | 338 | // misses and the call site is patched to megamorphic |
aoqi@0 | 339 | static methodHandle handle_ic_miss_helper(JavaThread* thread, TRAPS); |
aoqi@0 | 340 | |
aoqi@0 | 341 | // Find the method that called us. |
aoqi@0 | 342 | static methodHandle find_callee_method(JavaThread* thread, TRAPS); |
aoqi@0 | 343 | |
aoqi@0 | 344 | |
aoqi@0 | 345 | private: |
aoqi@0 | 346 | static Handle find_callee_info(JavaThread* thread, |
aoqi@0 | 347 | Bytecodes::Code& bc, |
aoqi@0 | 348 | CallInfo& callinfo, TRAPS); |
aoqi@0 | 349 | static Handle find_callee_info_helper(JavaThread* thread, |
aoqi@0 | 350 | vframeStream& vfst, |
aoqi@0 | 351 | Bytecodes::Code& bc, |
aoqi@0 | 352 | CallInfo& callinfo, TRAPS); |
aoqi@0 | 353 | |
aoqi@0 | 354 | static address clean_virtual_call_entry(); |
aoqi@0 | 355 | static address clean_opt_virtual_call_entry(); |
aoqi@0 | 356 | static address clean_static_call_entry(); |
aoqi@0 | 357 | |
aoqi@0 | 358 | public: |
aoqi@0 | 359 | |
aoqi@0 | 360 | // Read the array of BasicTypes from a Java signature, and compute where |
aoqi@0 | 361 | // compiled Java code would like to put the results. Values in reg_lo and |
aoqi@0 | 362 | // reg_hi refer to 4-byte quantities. Values less than SharedInfo::stack0 are |
aoqi@0 | 363 | // registers, those above refer to 4-byte stack slots. All stack slots are |
aoqi@0 | 364 | // based off of the window top. SharedInfo::stack0 refers to the first usable |
aoqi@0 | 365 | // slot in the bottom of the frame. SharedInfo::stack0+1 refers to the memory word |
aoqi@0 | 366 | // 4-bytes higher. So for sparc because the register window save area is at |
aoqi@0 | 367 | // the bottom of the frame the first 16 words will be skipped and SharedInfo::stack0 |
aoqi@0 | 368 | // will be just above it. ( |
aoqi@0 | 369 | // return value is the maximum number of VMReg stack slots the convention will use. |
aoqi@0 | 370 | static int java_calling_convention(const BasicType* sig_bt, VMRegPair* regs, int total_args_passed, int is_outgoing); |
aoqi@0 | 371 | |
aoqi@0 | 372 | static void check_member_name_argument_is_last_argument(methodHandle method, |
aoqi@0 | 373 | const BasicType* sig_bt, |
aoqi@0 | 374 | const VMRegPair* regs) NOT_DEBUG_RETURN; |
aoqi@0 | 375 | |
aoqi@0 | 376 | // Ditto except for calling C |
aoqi@0 | 377 | // |
aoqi@0 | 378 | // C argument in register AND stack slot. |
aoqi@0 | 379 | // Some architectures require that an argument must be passed in a register |
aoqi@0 | 380 | // AND in a stack slot. These architectures provide a second VMRegPair array |
aoqi@0 | 381 | // to be filled by the c_calling_convention method. On other architectures, |
aoqi@0 | 382 | // NULL is being passed as the second VMRegPair array, so arguments are either |
aoqi@0 | 383 | // passed in a register OR in a stack slot. |
aoqi@0 | 384 | static int c_calling_convention(const BasicType *sig_bt, VMRegPair *regs, VMRegPair *regs2, |
aoqi@0 | 385 | int total_args_passed); |
aoqi@0 | 386 | |
aoqi@0 | 387 | // Compute the new number of arguments in the signature if 32 bit ints |
aoqi@0 | 388 | // must be converted to longs. Needed if CCallingConventionRequiresIntsAsLongs |
aoqi@0 | 389 | // is true. |
aoqi@0 | 390 | static int convert_ints_to_longints_argcnt(int in_args_count, BasicType* in_sig_bt); |
aoqi@0 | 391 | // Adapt a method's signature if it contains 32 bit integers that must |
aoqi@0 | 392 | // be converted to longs. Needed if CCallingConventionRequiresIntsAsLongs |
aoqi@0 | 393 | // is true. |
aoqi@0 | 394 | static void convert_ints_to_longints(int i2l_argcnt, int& in_args_count, |
aoqi@0 | 395 | BasicType*& in_sig_bt, VMRegPair*& in_regs); |
aoqi@0 | 396 | |
aoqi@0 | 397 | // Generate I2C and C2I adapters. These adapters are simple argument marshalling |
aoqi@0 | 398 | // blobs. Unlike adapters in the tiger and earlier releases the code in these |
aoqi@0 | 399 | // blobs does not create a new frame and are therefore virtually invisible |
aoqi@0 | 400 | // to the stack walking code. In general these blobs extend the callers stack |
aoqi@0 | 401 | // as needed for the conversion of argument locations. |
aoqi@0 | 402 | |
aoqi@0 | 403 | // When calling a c2i blob the code will always call the interpreter even if |
aoqi@0 | 404 | // by the time we reach the blob there is compiled code available. This allows |
aoqi@0 | 405 | // the blob to pass the incoming stack pointer (the sender sp) in a known |
aoqi@0 | 406 | // location for the interpreter to record. This is used by the frame code |
aoqi@0 | 407 | // to correct the sender code to match up with the stack pointer when the |
aoqi@0 | 408 | // thread left the compiled code. In addition it allows the interpreter |
aoqi@0 | 409 | // to remove the space the c2i adapter allocated to do its argument conversion. |
aoqi@0 | 410 | |
aoqi@0 | 411 | // Although a c2i blob will always run interpreted even if compiled code is |
aoqi@0 | 412 | // present if we see that compiled code is present the compiled call site |
aoqi@0 | 413 | // will be patched/re-resolved so that later calls will run compiled. |
aoqi@0 | 414 | |
aoqi@0 | 415 | // Aditionally a c2i blob need to have a unverified entry because it can be reached |
aoqi@0 | 416 | // in situations where the call site is an inlined cache site and may go megamorphic. |
aoqi@0 | 417 | |
aoqi@0 | 418 | // A i2c adapter is simpler than the c2i adapter. This is because it is assumed |
aoqi@0 | 419 | // that the interpreter before it does any call dispatch will record the current |
aoqi@0 | 420 | // stack pointer in the interpreter frame. On return it will restore the stack |
aoqi@0 | 421 | // pointer as needed. This means the i2c adapter code doesn't need any special |
aoqi@0 | 422 | // handshaking path with compiled code to keep the stack walking correct. |
aoqi@0 | 423 | |
aoqi@0 | 424 | static AdapterHandlerEntry* generate_i2c2i_adapters(MacroAssembler *_masm, |
aoqi@0 | 425 | int total_args_passed, |
aoqi@0 | 426 | int max_arg, |
aoqi@0 | 427 | const BasicType *sig_bt, |
aoqi@0 | 428 | const VMRegPair *regs, |
aoqi@0 | 429 | AdapterFingerPrint* fingerprint); |
aoqi@0 | 430 | |
aoqi@0 | 431 | // OSR support |
aoqi@0 | 432 | |
aoqi@0 | 433 | // OSR_migration_begin will extract the jvm state from an interpreter |
aoqi@0 | 434 | // frame (locals, monitors) and store the data in a piece of C heap |
aoqi@0 | 435 | // storage. This then allows the interpreter frame to be removed from the |
aoqi@0 | 436 | // stack and the OSR nmethod to be called. That method is called with a |
aoqi@0 | 437 | // pointer to the C heap storage. This pointer is the return value from |
aoqi@0 | 438 | // OSR_migration_begin. |
aoqi@0 | 439 | |
aoqi@0 | 440 | static intptr_t* OSR_migration_begin( JavaThread *thread); |
aoqi@0 | 441 | |
aoqi@0 | 442 | // OSR_migration_end is a trivial routine. It is called after the compiled |
aoqi@0 | 443 | // method has extracted the jvm state from the C heap that OSR_migration_begin |
aoqi@0 | 444 | // created. It's entire job is to simply free this storage. |
aoqi@0 | 445 | static void OSR_migration_end ( intptr_t* buf); |
aoqi@0 | 446 | |
aoqi@0 | 447 | // Convert a sig into a calling convention register layout |
aoqi@0 | 448 | // and find interesting things about it. |
aoqi@0 | 449 | static VMRegPair* find_callee_arguments(Symbol* sig, bool has_receiver, bool has_appendix, int *arg_size); |
aoqi@0 | 450 | static VMReg name_for_receiver(); |
aoqi@0 | 451 | |
aoqi@0 | 452 | // "Top of Stack" slots that may be unused by the calling convention but must |
aoqi@0 | 453 | // otherwise be preserved. |
aoqi@0 | 454 | // On Intel these are not necessary and the value can be zero. |
aoqi@0 | 455 | // On Sparc this describes the words reserved for storing a register window |
aoqi@0 | 456 | // when an interrupt occurs. |
aoqi@0 | 457 | static uint out_preserve_stack_slots(); |
aoqi@0 | 458 | |
aoqi@0 | 459 | // Is vector's size (in bytes) bigger than a size saved by default? |
aoqi@0 | 460 | // For example, on x86 16 bytes XMM registers are saved by default. |
aoqi@0 | 461 | static bool is_wide_vector(int size); |
aoqi@0 | 462 | |
aoqi@0 | 463 | // Save and restore a native result |
aoqi@0 | 464 | static void save_native_result(MacroAssembler *_masm, BasicType ret_type, int frame_slots ); |
aoqi@0 | 465 | static void restore_native_result(MacroAssembler *_masm, BasicType ret_type, int frame_slots ); |
aoqi@0 | 466 | |
aoqi@0 | 467 | // Generate a native wrapper for a given method. The method takes arguments |
aoqi@0 | 468 | // in the Java compiled code convention, marshals them to the native |
aoqi@0 | 469 | // convention (handlizes oops, etc), transitions to native, makes the call, |
aoqi@0 | 470 | // returns to java state (possibly blocking), unhandlizes any result and |
aoqi@0 | 471 | // returns. |
aoqi@0 | 472 | // |
aoqi@0 | 473 | // The wrapper may contain special-case code if the given method |
aoqi@0 | 474 | // is a JNI critical method, or a compiled method handle adapter, |
aoqi@0 | 475 | // such as _invokeBasic, _linkToVirtual, etc. |
aoqi@0 | 476 | static nmethod* generate_native_wrapper(MacroAssembler* masm, |
aoqi@0 | 477 | methodHandle method, |
aoqi@0 | 478 | int compile_id, |
aoqi@0 | 479 | BasicType* sig_bt, |
aoqi@0 | 480 | VMRegPair* regs, |
aoqi@0 | 481 | BasicType ret_type ); |
aoqi@0 | 482 | |
aoqi@0 | 483 | // Block before entering a JNI critical method |
aoqi@0 | 484 | static void block_for_jni_critical(JavaThread* thread); |
aoqi@0 | 485 | |
aoqi@0 | 486 | #ifdef HAVE_DTRACE_H |
aoqi@0 | 487 | // Generate a dtrace wrapper for a given method. The method takes arguments |
aoqi@0 | 488 | // in the Java compiled code convention, marshals them to the native |
aoqi@0 | 489 | // convention (handlizes oops, etc), transitions to native, makes the call, |
aoqi@0 | 490 | // returns to java state (possibly blocking), unhandlizes any result and |
aoqi@0 | 491 | // returns. |
aoqi@0 | 492 | static nmethod *generate_dtrace_nmethod(MacroAssembler* masm, |
aoqi@0 | 493 | methodHandle method); |
aoqi@0 | 494 | |
aoqi@0 | 495 | // dtrace support to convert a Java string to utf8 |
aoqi@0 | 496 | static void get_utf(oopDesc* src, address dst); |
aoqi@0 | 497 | #endif // def HAVE_DTRACE_H |
aoqi@0 | 498 | |
aoqi@0 | 499 | // A compiled caller has just called the interpreter, but compiled code |
aoqi@0 | 500 | // exists. Patch the caller so he no longer calls into the interpreter. |
aoqi@0 | 501 | static void fixup_callers_callsite(Method* moop, address ret_pc); |
aoqi@0 | 502 | |
aoqi@0 | 503 | // Slow-path Locking and Unlocking |
aoqi@0 | 504 | static void complete_monitor_locking_C(oopDesc* obj, BasicLock* lock, JavaThread* thread); |
aoqi@0 | 505 | static void complete_monitor_unlocking_C(oopDesc* obj, BasicLock* lock); |
aoqi@0 | 506 | |
aoqi@0 | 507 | // Resolving of calls |
aoqi@0 | 508 | static address resolve_static_call_C (JavaThread *thread); |
aoqi@0 | 509 | static address resolve_virtual_call_C (JavaThread *thread); |
aoqi@0 | 510 | static address resolve_opt_virtual_call_C(JavaThread *thread); |
aoqi@0 | 511 | |
aoqi@0 | 512 | // arraycopy, the non-leaf version. (See StubRoutines for all the leaf calls.) |
aoqi@0 | 513 | static void slow_arraycopy_C(oopDesc* src, jint src_pos, |
aoqi@0 | 514 | oopDesc* dest, jint dest_pos, |
aoqi@0 | 515 | jint length, JavaThread* thread); |
aoqi@0 | 516 | |
aoqi@0 | 517 | // handle ic miss with caller being compiled code |
aoqi@0 | 518 | // wrong method handling (inline cache misses, zombie methods) |
aoqi@0 | 519 | static address handle_wrong_method(JavaThread* thread); |
aoqi@0 | 520 | static address handle_wrong_method_abstract(JavaThread* thread); |
aoqi@0 | 521 | static address handle_wrong_method_ic_miss(JavaThread* thread); |
aoqi@0 | 522 | |
aoqi@0 | 523 | #ifndef PRODUCT |
aoqi@0 | 524 | |
aoqi@0 | 525 | // Collect and print inline cache miss statistics |
aoqi@0 | 526 | private: |
aoqi@0 | 527 | enum { maxICmiss_count = 100 }; |
aoqi@0 | 528 | static int _ICmiss_index; // length of IC miss histogram |
aoqi@0 | 529 | static int _ICmiss_count[maxICmiss_count]; // miss counts |
aoqi@0 | 530 | static address _ICmiss_at[maxICmiss_count]; // miss addresses |
aoqi@0 | 531 | static void trace_ic_miss(address at); |
aoqi@0 | 532 | |
aoqi@0 | 533 | public: |
aoqi@0 | 534 | static int _monitor_enter_ctr; // monitor enter slow |
aoqi@0 | 535 | static int _monitor_exit_ctr; // monitor exit slow |
aoqi@0 | 536 | static int _throw_null_ctr; // throwing a null-pointer exception |
aoqi@0 | 537 | static int _ic_miss_ctr; // total # of IC misses |
aoqi@0 | 538 | static int _wrong_method_ctr; |
aoqi@0 | 539 | static int _resolve_static_ctr; |
aoqi@0 | 540 | static int _resolve_virtual_ctr; |
aoqi@0 | 541 | static int _resolve_opt_virtual_ctr; |
aoqi@0 | 542 | static int _implicit_null_throws; |
aoqi@0 | 543 | static int _implicit_div0_throws; |
aoqi@0 | 544 | |
aoqi@0 | 545 | static int _jbyte_array_copy_ctr; // Slow-path byte array copy |
aoqi@0 | 546 | static int _jshort_array_copy_ctr; // Slow-path short array copy |
aoqi@0 | 547 | static int _jint_array_copy_ctr; // Slow-path int array copy |
aoqi@0 | 548 | static int _jlong_array_copy_ctr; // Slow-path long array copy |
aoqi@0 | 549 | static int _oop_array_copy_ctr; // Slow-path oop array copy |
aoqi@0 | 550 | static int _checkcast_array_copy_ctr; // Slow-path oop array copy, with cast |
aoqi@0 | 551 | static int _unsafe_array_copy_ctr; // Slow-path includes alignment checks |
aoqi@0 | 552 | static int _generic_array_copy_ctr; // Slow-path includes type decoding |
aoqi@0 | 553 | static int _slow_array_copy_ctr; // Slow-path failed out to a method call |
aoqi@0 | 554 | |
aoqi@0 | 555 | static int _new_instance_ctr; // 'new' object requires GC |
aoqi@0 | 556 | static int _new_array_ctr; // 'new' array requires GC |
aoqi@0 | 557 | static int _multi1_ctr, _multi2_ctr, _multi3_ctr, _multi4_ctr, _multi5_ctr; |
aoqi@0 | 558 | static int _find_handler_ctr; // find exception handler |
aoqi@0 | 559 | static int _rethrow_ctr; // rethrow exception |
aoqi@0 | 560 | static int _mon_enter_stub_ctr; // monitor enter stub |
aoqi@0 | 561 | static int _mon_exit_stub_ctr; // monitor exit stub |
aoqi@0 | 562 | static int _mon_enter_ctr; // monitor enter slow |
aoqi@0 | 563 | static int _mon_exit_ctr; // monitor exit slow |
aoqi@0 | 564 | static int _partial_subtype_ctr; // SubRoutines::partial_subtype_check |
aoqi@0 | 565 | |
aoqi@0 | 566 | // Statistics code |
aoqi@0 | 567 | // stats for "normal" compiled calls (non-interface) |
aoqi@0 | 568 | static int _nof_normal_calls; // total # of calls |
aoqi@0 | 569 | static int _nof_optimized_calls; // total # of statically-bound calls |
aoqi@0 | 570 | static int _nof_inlined_calls; // total # of inlined normal calls |
aoqi@0 | 571 | static int _nof_static_calls; // total # of calls to static methods or super methods (invokespecial) |
aoqi@0 | 572 | static int _nof_inlined_static_calls; // total # of inlined static calls |
aoqi@0 | 573 | // stats for compiled interface calls |
aoqi@0 | 574 | static int _nof_interface_calls; // total # of compiled calls |
aoqi@0 | 575 | static int _nof_optimized_interface_calls; // total # of statically-bound interface calls |
aoqi@0 | 576 | static int _nof_inlined_interface_calls; // total # of inlined interface calls |
aoqi@0 | 577 | static int _nof_megamorphic_interface_calls;// total # of megamorphic interface calls |
aoqi@0 | 578 | // stats for runtime exceptions |
aoqi@0 | 579 | static int _nof_removable_exceptions; // total # of exceptions that could be replaced by branches due to inlining |
aoqi@0 | 580 | |
aoqi@0 | 581 | public: // for compiler |
aoqi@0 | 582 | static address nof_normal_calls_addr() { return (address)&_nof_normal_calls; } |
aoqi@0 | 583 | static address nof_optimized_calls_addr() { return (address)&_nof_optimized_calls; } |
aoqi@0 | 584 | static address nof_inlined_calls_addr() { return (address)&_nof_inlined_calls; } |
aoqi@0 | 585 | static address nof_static_calls_addr() { return (address)&_nof_static_calls; } |
aoqi@0 | 586 | static address nof_inlined_static_calls_addr() { return (address)&_nof_inlined_static_calls; } |
aoqi@0 | 587 | static address nof_interface_calls_addr() { return (address)&_nof_interface_calls; } |
aoqi@0 | 588 | static address nof_optimized_interface_calls_addr() { return (address)&_nof_optimized_interface_calls; } |
aoqi@0 | 589 | static address nof_inlined_interface_calls_addr() { return (address)&_nof_inlined_interface_calls; } |
aoqi@0 | 590 | static address nof_megamorphic_interface_calls_addr() { return (address)&_nof_megamorphic_interface_calls; } |
aoqi@0 | 591 | static void print_call_statistics(int comp_total); |
aoqi@0 | 592 | static void print_statistics(); |
aoqi@0 | 593 | static void print_ic_miss_histogram(); |
aoqi@0 | 594 | |
aoqi@0 | 595 | #endif // PRODUCT |
aoqi@7997 | 596 | static void print_long(long long i); |
aoqi@7997 | 597 | static void print_int(int i); |
aoqi@7997 | 598 | static void print_float(float i); |
aoqi@7997 | 599 | static void print_double(double i); |
aoqi@1 | 600 | static void print_str(char *str); |
aoqi@1 | 601 | |
aoqi@7997 | 602 | static void print_reg_with_pc(char *reg_name, long i, long pc); |
aoqi@0 | 603 | }; |
aoqi@0 | 604 | |
aoqi@0 | 605 | |
aoqi@0 | 606 | // --------------------------------------------------------------------------- |
aoqi@0 | 607 | // Implementation of AdapterHandlerLibrary |
aoqi@0 | 608 | // |
aoqi@0 | 609 | // This library manages argument marshaling adapters and native wrappers. |
aoqi@0 | 610 | // There are 2 flavors of adapters: I2C and C2I. |
aoqi@0 | 611 | // |
aoqi@0 | 612 | // The I2C flavor takes a stock interpreted call setup, marshals the |
aoqi@0 | 613 | // arguments for a Java-compiled call, and jumps to Rmethod-> code()-> |
aoqi@0 | 614 | // code_begin(). It is broken to call it without an nmethod assigned. |
aoqi@0 | 615 | // The usual behavior is to lift any register arguments up out of the |
aoqi@0 | 616 | // stack and possibly re-pack the extra arguments to be contigious. |
aoqi@0 | 617 | // I2C adapters will save what the interpreter's stack pointer will be |
aoqi@0 | 618 | // after arguments are popped, then adjust the interpreter's frame |
aoqi@0 | 619 | // size to force alignment and possibly to repack the arguments. |
aoqi@0 | 620 | // After re-packing, it jumps to the compiled code start. There are |
aoqi@0 | 621 | // no safepoints in this adapter code and a GC cannot happen while |
aoqi@0 | 622 | // marshaling is in progress. |
aoqi@0 | 623 | // |
aoqi@0 | 624 | // The C2I flavor takes a stock compiled call setup plus the target method in |
aoqi@0 | 625 | // Rmethod, marshals the arguments for an interpreted call and jumps to |
aoqi@0 | 626 | // Rmethod->_i2i_entry. On entry, the interpreted frame has not yet been |
aoqi@0 | 627 | // setup. Compiled frames are fixed-size and the args are likely not in the |
aoqi@0 | 628 | // right place. Hence all the args will likely be copied into the |
aoqi@0 | 629 | // interpreter's frame, forcing that frame to grow. The compiled frame's |
aoqi@0 | 630 | // outgoing stack args will be dead after the copy. |
aoqi@0 | 631 | // |
aoqi@0 | 632 | // Native wrappers, like adapters, marshal arguments. Unlike adapters they |
aoqi@0 | 633 | // also perform an offical frame push & pop. They have a call to the native |
aoqi@0 | 634 | // routine in their middles and end in a return (instead of ending in a jump). |
aoqi@0 | 635 | // The native wrappers are stored in real nmethods instead of the BufferBlobs |
aoqi@0 | 636 | // used by the adapters. The code generation happens here because it's very |
aoqi@0 | 637 | // similar to what the adapters have to do. |
aoqi@0 | 638 | |
aoqi@0 | 639 | class AdapterHandlerEntry : public BasicHashtableEntry<mtCode> { |
aoqi@0 | 640 | friend class AdapterHandlerTable; |
aoqi@0 | 641 | |
aoqi@0 | 642 | private: |
aoqi@0 | 643 | AdapterFingerPrint* _fingerprint; |
aoqi@0 | 644 | address _i2c_entry; |
aoqi@0 | 645 | address _c2i_entry; |
aoqi@0 | 646 | address _c2i_unverified_entry; |
aoqi@0 | 647 | |
aoqi@0 | 648 | #ifdef ASSERT |
aoqi@0 | 649 | // Captures code and signature used to generate this adapter when |
aoqi@0 | 650 | // verifing adapter equivalence. |
aoqi@0 | 651 | unsigned char* _saved_code; |
aoqi@0 | 652 | int _saved_code_length; |
aoqi@0 | 653 | #endif |
aoqi@0 | 654 | |
aoqi@0 | 655 | void init(AdapterFingerPrint* fingerprint, address i2c_entry, address c2i_entry, address c2i_unverified_entry) { |
aoqi@0 | 656 | _fingerprint = fingerprint; |
aoqi@0 | 657 | _i2c_entry = i2c_entry; |
aoqi@0 | 658 | _c2i_entry = c2i_entry; |
aoqi@0 | 659 | _c2i_unverified_entry = c2i_unverified_entry; |
aoqi@0 | 660 | #ifdef ASSERT |
aoqi@0 | 661 | _saved_code = NULL; |
aoqi@0 | 662 | _saved_code_length = 0; |
aoqi@0 | 663 | #endif |
aoqi@0 | 664 | } |
aoqi@0 | 665 | |
aoqi@0 | 666 | void deallocate(); |
aoqi@0 | 667 | |
aoqi@0 | 668 | // should never be used |
aoqi@0 | 669 | AdapterHandlerEntry(); |
aoqi@0 | 670 | |
aoqi@0 | 671 | public: |
aoqi@0 | 672 | address get_i2c_entry() const { return _i2c_entry; } |
aoqi@0 | 673 | address get_c2i_entry() const { return _c2i_entry; } |
aoqi@0 | 674 | address get_c2i_unverified_entry() const { return _c2i_unverified_entry; } |
aoqi@0 | 675 | address base_address(); |
aoqi@0 | 676 | void relocate(address new_base); |
aoqi@0 | 677 | |
aoqi@0 | 678 | AdapterFingerPrint* fingerprint() const { return _fingerprint; } |
aoqi@0 | 679 | |
aoqi@0 | 680 | AdapterHandlerEntry* next() { |
aoqi@0 | 681 | return (AdapterHandlerEntry*)BasicHashtableEntry<mtCode>::next(); |
aoqi@0 | 682 | } |
aoqi@0 | 683 | |
aoqi@0 | 684 | #ifdef ASSERT |
aoqi@0 | 685 | // Used to verify that code generated for shared adapters is equivalent |
aoqi@0 | 686 | void save_code (unsigned char* code, int length); |
aoqi@0 | 687 | bool compare_code(unsigned char* code, int length); |
aoqi@0 | 688 | #endif |
aoqi@0 | 689 | |
aoqi@0 | 690 | //virtual void print_on(outputStream* st) const; DO NOT USE |
aoqi@0 | 691 | void print_adapter_on(outputStream* st) const; |
aoqi@0 | 692 | }; |
aoqi@0 | 693 | |
aoqi@0 | 694 | class AdapterHandlerLibrary: public AllStatic { |
aoqi@0 | 695 | private: |
aoqi@0 | 696 | static BufferBlob* _buffer; // the temporary code buffer in CodeCache |
aoqi@0 | 697 | static AdapterHandlerTable* _adapters; |
aoqi@0 | 698 | static AdapterHandlerEntry* _abstract_method_handler; |
aoqi@0 | 699 | static BufferBlob* buffer_blob(); |
aoqi@0 | 700 | static void initialize(); |
aoqi@0 | 701 | |
aoqi@0 | 702 | public: |
aoqi@0 | 703 | |
aoqi@0 | 704 | static AdapterHandlerEntry* new_entry(AdapterFingerPrint* fingerprint, |
aoqi@0 | 705 | address i2c_entry, address c2i_entry, address c2i_unverified_entry); |
aoqi@0 | 706 | static void create_native_wrapper(methodHandle method); |
aoqi@0 | 707 | static AdapterHandlerEntry* get_adapter(methodHandle method); |
aoqi@0 | 708 | |
aoqi@0 | 709 | #ifdef HAVE_DTRACE_H |
aoqi@0 | 710 | static nmethod* create_dtrace_nmethod (methodHandle method); |
aoqi@0 | 711 | #endif // HAVE_DTRACE_H |
aoqi@0 | 712 | |
aoqi@0 | 713 | static void print_handler(CodeBlob* b) { print_handler_on(tty, b); } |
aoqi@0 | 714 | static void print_handler_on(outputStream* st, CodeBlob* b); |
aoqi@0 | 715 | static bool contains(CodeBlob* b); |
aoqi@0 | 716 | #ifndef PRODUCT |
aoqi@0 | 717 | static void print_statistics(); |
aoqi@0 | 718 | #endif /* PRODUCT */ |
aoqi@0 | 719 | |
aoqi@0 | 720 | }; |
aoqi@0 | 721 | |
aoqi@0 | 722 | #endif // SHARE_VM_RUNTIME_SHAREDRUNTIME_HPP |