Fri, 27 Feb 2009 13:27:09 -0800
6810672: Comment typos
Summary: I have collected some typos I have found while looking at the code.
Reviewed-by: kvn, never
duke@435 | 1 | /* |
duke@435 | 2 | * Copyright 1998-2007 Sun Microsystems, Inc. All Rights Reserved. |
duke@435 | 3 | * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. |
duke@435 | 4 | * |
duke@435 | 5 | * This code is free software; you can redistribute it and/or modify it |
duke@435 | 6 | * under the terms of the GNU General Public License version 2 only, as |
duke@435 | 7 | * published by the Free Software Foundation. |
duke@435 | 8 | * |
duke@435 | 9 | * This code is distributed in the hope that it will be useful, but WITHOUT |
duke@435 | 10 | * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or |
duke@435 | 11 | * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License |
duke@435 | 12 | * version 2 for more details (a copy is included in the LICENSE file that |
duke@435 | 13 | * accompanied this code). |
duke@435 | 14 | * |
duke@435 | 15 | * You should have received a copy of the GNU General Public License version |
duke@435 | 16 | * 2 along with this work; if not, write to the Free Software Foundation, |
duke@435 | 17 | * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. |
duke@435 | 18 | * |
duke@435 | 19 | * Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa Clara, |
duke@435 | 20 | * CA 95054 USA or visit www.sun.com if you need additional information or |
duke@435 | 21 | * have any questions. |
duke@435 | 22 | * |
duke@435 | 23 | */ |
duke@435 | 24 | |
duke@435 | 25 | #include "incls/_precompiled.incl" |
duke@435 | 26 | #include "incls/_runtime.cpp.incl" |
duke@435 | 27 | |
duke@435 | 28 | |
duke@435 | 29 | // For debugging purposes: |
duke@435 | 30 | // To force FullGCALot inside a runtime function, add the following two lines |
duke@435 | 31 | // |
duke@435 | 32 | // Universe::release_fullgc_alot_dummy(); |
duke@435 | 33 | // MarkSweep::invoke(0, "Debugging"); |
duke@435 | 34 | // |
duke@435 | 35 | // At command line specify the parameters: -XX:+FullGCALot -XX:FullGCALotStart=100000000 |
duke@435 | 36 | |
duke@435 | 37 | |
duke@435 | 38 | |
duke@435 | 39 | |
duke@435 | 40 | // Compiled code entry points |
duke@435 | 41 | address OptoRuntime::_new_instance_Java = NULL; |
duke@435 | 42 | address OptoRuntime::_new_array_Java = NULL; |
duke@435 | 43 | address OptoRuntime::_multianewarray2_Java = NULL; |
duke@435 | 44 | address OptoRuntime::_multianewarray3_Java = NULL; |
duke@435 | 45 | address OptoRuntime::_multianewarray4_Java = NULL; |
duke@435 | 46 | address OptoRuntime::_multianewarray5_Java = NULL; |
ysr@777 | 47 | address OptoRuntime::_g1_wb_pre_Java = NULL; |
ysr@777 | 48 | address OptoRuntime::_g1_wb_post_Java = NULL; |
duke@435 | 49 | address OptoRuntime::_vtable_must_compile_Java = NULL; |
duke@435 | 50 | address OptoRuntime::_complete_monitor_locking_Java = NULL; |
duke@435 | 51 | address OptoRuntime::_rethrow_Java = NULL; |
duke@435 | 52 | |
duke@435 | 53 | address OptoRuntime::_slow_arraycopy_Java = NULL; |
duke@435 | 54 | address OptoRuntime::_register_finalizer_Java = NULL; |
duke@435 | 55 | |
duke@435 | 56 | # ifdef ENABLE_ZAP_DEAD_LOCALS |
duke@435 | 57 | address OptoRuntime::_zap_dead_Java_locals_Java = NULL; |
duke@435 | 58 | address OptoRuntime::_zap_dead_native_locals_Java = NULL; |
duke@435 | 59 | # endif |
duke@435 | 60 | |
duke@435 | 61 | |
duke@435 | 62 | // This should be called in an assertion at the start of OptoRuntime routines |
duke@435 | 63 | // which are entered from compiled code (all of them) |
duke@435 | 64 | #ifndef PRODUCT |
duke@435 | 65 | static bool check_compiled_frame(JavaThread* thread) { |
duke@435 | 66 | assert(thread->last_frame().is_runtime_frame(), "cannot call runtime directly from compiled code"); |
duke@435 | 67 | #ifdef ASSERT |
duke@435 | 68 | RegisterMap map(thread, false); |
duke@435 | 69 | frame caller = thread->last_frame().sender(&map); |
duke@435 | 70 | assert(caller.is_compiled_frame(), "not being called from compiled like code"); |
duke@435 | 71 | #endif /* ASSERT */ |
duke@435 | 72 | return true; |
duke@435 | 73 | } |
duke@435 | 74 | #endif |
duke@435 | 75 | |
duke@435 | 76 | |
duke@435 | 77 | #define gen(env, var, type_func_gen, c_func, fancy_jump, pass_tls, save_arg_regs, return_pc) \ |
duke@435 | 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) |
duke@435 | 79 | |
duke@435 | 80 | void OptoRuntime::generate(ciEnv* env) { |
duke@435 | 81 | |
duke@435 | 82 | generate_exception_blob(); |
duke@435 | 83 | |
duke@435 | 84 | // Note: tls: Means fetching the return oop out of the thread-local storage |
duke@435 | 85 | // |
duke@435 | 86 | // variable/name type-function-gen , runtime method ,fncy_jp, tls,save_args,retpc |
duke@435 | 87 | // ------------------------------------------------------------------------------------------------------------------------------- |
duke@435 | 88 | gen(env, _new_instance_Java , new_instance_Type , new_instance_C , 0 , true , false, false); |
duke@435 | 89 | gen(env, _new_array_Java , new_array_Type , new_array_C , 0 , true , false, false); |
duke@435 | 90 | gen(env, _multianewarray2_Java , multianewarray2_Type , multianewarray2_C , 0 , true , false, false); |
duke@435 | 91 | gen(env, _multianewarray3_Java , multianewarray3_Type , multianewarray3_C , 0 , true , false, false); |
duke@435 | 92 | gen(env, _multianewarray4_Java , multianewarray4_Type , multianewarray4_C , 0 , true , false, false); |
duke@435 | 93 | gen(env, _multianewarray5_Java , multianewarray5_Type , multianewarray5_C , 0 , true , false, false); |
ysr@777 | 94 | gen(env, _g1_wb_pre_Java , g1_wb_pre_Type , SharedRuntime::g1_wb_pre , 0 , false, false, false); |
ysr@777 | 95 | gen(env, _g1_wb_post_Java , g1_wb_post_Type , SharedRuntime::g1_wb_post , 0 , false, false, false); |
duke@435 | 96 | gen(env, _complete_monitor_locking_Java , complete_monitor_enter_Type , SharedRuntime::complete_monitor_locking_C , 0 , false, false, false); |
duke@435 | 97 | gen(env, _rethrow_Java , rethrow_Type , rethrow_C , 2 , true , false, true ); |
duke@435 | 98 | |
duke@435 | 99 | gen(env, _slow_arraycopy_Java , slow_arraycopy_Type , SharedRuntime::slow_arraycopy_C , 0 , false, false, false); |
duke@435 | 100 | gen(env, _register_finalizer_Java , register_finalizer_Type , register_finalizer , 0 , false, false, false); |
duke@435 | 101 | |
duke@435 | 102 | # ifdef ENABLE_ZAP_DEAD_LOCALS |
duke@435 | 103 | gen(env, _zap_dead_Java_locals_Java , zap_dead_locals_Type , zap_dead_Java_locals_C , 0 , false, true , false ); |
duke@435 | 104 | gen(env, _zap_dead_native_locals_Java , zap_dead_locals_Type , zap_dead_native_locals_C , 0 , false, true , false ); |
duke@435 | 105 | # endif |
duke@435 | 106 | |
duke@435 | 107 | } |
duke@435 | 108 | |
duke@435 | 109 | #undef gen |
duke@435 | 110 | |
duke@435 | 111 | |
duke@435 | 112 | // Helper method to do generation of RunTimeStub's |
duke@435 | 113 | address OptoRuntime::generate_stub( ciEnv* env, |
duke@435 | 114 | TypeFunc_generator gen, address C_function, |
duke@435 | 115 | const char *name, int is_fancy_jump, |
duke@435 | 116 | bool pass_tls, |
duke@435 | 117 | bool save_argument_registers, |
duke@435 | 118 | bool return_pc ) { |
duke@435 | 119 | ResourceMark rm; |
duke@435 | 120 | Compile C( env, gen, C_function, name, is_fancy_jump, pass_tls, save_argument_registers, return_pc ); |
duke@435 | 121 | return C.stub_entry_point(); |
duke@435 | 122 | } |
duke@435 | 123 | |
duke@435 | 124 | const char* OptoRuntime::stub_name(address entry) { |
duke@435 | 125 | #ifndef PRODUCT |
duke@435 | 126 | CodeBlob* cb = CodeCache::find_blob(entry); |
duke@435 | 127 | RuntimeStub* rs =(RuntimeStub *)cb; |
duke@435 | 128 | assert(rs != NULL && rs->is_runtime_stub(), "not a runtime stub"); |
duke@435 | 129 | return rs->name(); |
duke@435 | 130 | #else |
duke@435 | 131 | // Fast implementation for product mode (maybe it should be inlined too) |
duke@435 | 132 | return "runtime stub"; |
duke@435 | 133 | #endif |
duke@435 | 134 | } |
duke@435 | 135 | |
duke@435 | 136 | |
duke@435 | 137 | //============================================================================= |
duke@435 | 138 | // Opto compiler runtime routines |
duke@435 | 139 | //============================================================================= |
duke@435 | 140 | |
duke@435 | 141 | |
duke@435 | 142 | //=============================allocation====================================== |
duke@435 | 143 | // We failed the fast-path allocation. Now we need to do a scavenge or GC |
duke@435 | 144 | // and try allocation again. |
duke@435 | 145 | |
duke@435 | 146 | void OptoRuntime::do_eager_card_mark(JavaThread* thread) { |
duke@435 | 147 | // After any safepoint, just before going back to compiled code, |
duke@435 | 148 | // we perform a card mark. This lets the compiled code omit |
duke@435 | 149 | // card marks for initialization of new objects. |
duke@435 | 150 | // Keep this code consistent with GraphKit::store_barrier. |
duke@435 | 151 | |
duke@435 | 152 | oop new_obj = thread->vm_result(); |
duke@435 | 153 | if (new_obj == NULL) return; |
duke@435 | 154 | |
duke@435 | 155 | assert(Universe::heap()->can_elide_tlab_store_barriers(), |
duke@435 | 156 | "compiler must check this first"); |
duke@435 | 157 | new_obj = Universe::heap()->new_store_barrier(new_obj); |
duke@435 | 158 | thread->set_vm_result(new_obj); |
duke@435 | 159 | } |
duke@435 | 160 | |
duke@435 | 161 | // object allocation |
duke@435 | 162 | JRT_BLOCK_ENTRY(void, OptoRuntime::new_instance_C(klassOopDesc* klass, JavaThread* thread)) |
duke@435 | 163 | JRT_BLOCK; |
duke@435 | 164 | #ifndef PRODUCT |
duke@435 | 165 | SharedRuntime::_new_instance_ctr++; // new instance requires GC |
duke@435 | 166 | #endif |
duke@435 | 167 | assert(check_compiled_frame(thread), "incorrect caller"); |
duke@435 | 168 | |
duke@435 | 169 | // These checks are cheap to make and support reflective allocation. |
duke@435 | 170 | int lh = Klass::cast(klass)->layout_helper(); |
duke@435 | 171 | if (Klass::layout_helper_needs_slow_path(lh) |
duke@435 | 172 | || !instanceKlass::cast(klass)->is_initialized()) { |
duke@435 | 173 | KlassHandle kh(THREAD, klass); |
duke@435 | 174 | kh->check_valid_for_instantiation(false, THREAD); |
duke@435 | 175 | if (!HAS_PENDING_EXCEPTION) { |
duke@435 | 176 | instanceKlass::cast(kh())->initialize(THREAD); |
duke@435 | 177 | } |
duke@435 | 178 | if (!HAS_PENDING_EXCEPTION) { |
duke@435 | 179 | klass = kh(); |
duke@435 | 180 | } else { |
duke@435 | 181 | klass = NULL; |
duke@435 | 182 | } |
duke@435 | 183 | } |
duke@435 | 184 | |
duke@435 | 185 | if (klass != NULL) { |
duke@435 | 186 | // Scavenge and allocate an instance. |
duke@435 | 187 | oop result = instanceKlass::cast(klass)->allocate_instance(THREAD); |
duke@435 | 188 | thread->set_vm_result(result); |
duke@435 | 189 | |
duke@435 | 190 | // Pass oops back through thread local storage. Our apparent type to Java |
duke@435 | 191 | // is that we return an oop, but we can block on exit from this routine and |
duke@435 | 192 | // a GC can trash the oop in C's return register. The generated stub will |
duke@435 | 193 | // fetch the oop from TLS after any possible GC. |
duke@435 | 194 | } |
duke@435 | 195 | |
duke@435 | 196 | deoptimize_caller_frame(thread, HAS_PENDING_EXCEPTION); |
duke@435 | 197 | JRT_BLOCK_END; |
duke@435 | 198 | |
duke@435 | 199 | if (GraphKit::use_ReduceInitialCardMarks()) { |
duke@435 | 200 | // do them now so we don't have to do them on the fast path |
duke@435 | 201 | do_eager_card_mark(thread); |
duke@435 | 202 | } |
duke@435 | 203 | JRT_END |
duke@435 | 204 | |
duke@435 | 205 | |
duke@435 | 206 | // array allocation |
duke@435 | 207 | JRT_BLOCK_ENTRY(void, OptoRuntime::new_array_C(klassOopDesc* array_type, int len, JavaThread *thread)) |
duke@435 | 208 | JRT_BLOCK; |
duke@435 | 209 | #ifndef PRODUCT |
duke@435 | 210 | SharedRuntime::_new_array_ctr++; // new array requires GC |
duke@435 | 211 | #endif |
duke@435 | 212 | assert(check_compiled_frame(thread), "incorrect caller"); |
duke@435 | 213 | |
duke@435 | 214 | // Scavenge and allocate an instance. |
duke@435 | 215 | oop result; |
duke@435 | 216 | |
duke@435 | 217 | if (Klass::cast(array_type)->oop_is_typeArray()) { |
duke@435 | 218 | // The oopFactory likes to work with the element type. |
duke@435 | 219 | // (We could bypass the oopFactory, since it doesn't add much value.) |
duke@435 | 220 | BasicType elem_type = typeArrayKlass::cast(array_type)->element_type(); |
duke@435 | 221 | result = oopFactory::new_typeArray(elem_type, len, THREAD); |
duke@435 | 222 | } else { |
duke@435 | 223 | // Although the oopFactory likes to work with the elem_type, |
duke@435 | 224 | // the compiler prefers the array_type, since it must already have |
duke@435 | 225 | // that latter value in hand for the fast path. |
duke@435 | 226 | klassOopDesc* elem_type = objArrayKlass::cast(array_type)->element_klass(); |
duke@435 | 227 | result = oopFactory::new_objArray(elem_type, len, THREAD); |
duke@435 | 228 | } |
duke@435 | 229 | |
duke@435 | 230 | // Pass oops back through thread local storage. Our apparent type to Java |
duke@435 | 231 | // is that we return an oop, but we can block on exit from this routine and |
duke@435 | 232 | // a GC can trash the oop in C's return register. The generated stub will |
duke@435 | 233 | // fetch the oop from TLS after any possible GC. |
duke@435 | 234 | deoptimize_caller_frame(thread, HAS_PENDING_EXCEPTION); |
duke@435 | 235 | thread->set_vm_result(result); |
duke@435 | 236 | JRT_BLOCK_END; |
duke@435 | 237 | |
duke@435 | 238 | if (GraphKit::use_ReduceInitialCardMarks()) { |
duke@435 | 239 | // do them now so we don't have to do them on the fast path |
duke@435 | 240 | do_eager_card_mark(thread); |
duke@435 | 241 | } |
duke@435 | 242 | JRT_END |
duke@435 | 243 | |
duke@435 | 244 | // Note: multianewarray for one dimension is handled inline by GraphKit::new_array. |
duke@435 | 245 | |
duke@435 | 246 | // multianewarray for 2 dimensions |
duke@435 | 247 | JRT_ENTRY(void, OptoRuntime::multianewarray2_C(klassOopDesc* elem_type, int len1, int len2, JavaThread *thread)) |
duke@435 | 248 | #ifndef PRODUCT |
duke@435 | 249 | SharedRuntime::_multi2_ctr++; // multianewarray for 1 dimension |
duke@435 | 250 | #endif |
duke@435 | 251 | assert(check_compiled_frame(thread), "incorrect caller"); |
duke@435 | 252 | assert(oop(elem_type)->is_klass(), "not a class"); |
duke@435 | 253 | jint dims[2]; |
duke@435 | 254 | dims[0] = len1; |
duke@435 | 255 | dims[1] = len2; |
duke@435 | 256 | oop obj = arrayKlass::cast(elem_type)->multi_allocate(2, dims, THREAD); |
duke@435 | 257 | deoptimize_caller_frame(thread, HAS_PENDING_EXCEPTION); |
duke@435 | 258 | thread->set_vm_result(obj); |
duke@435 | 259 | JRT_END |
duke@435 | 260 | |
duke@435 | 261 | // multianewarray for 3 dimensions |
duke@435 | 262 | JRT_ENTRY(void, OptoRuntime::multianewarray3_C(klassOopDesc* elem_type, int len1, int len2, int len3, JavaThread *thread)) |
duke@435 | 263 | #ifndef PRODUCT |
duke@435 | 264 | SharedRuntime::_multi3_ctr++; // multianewarray for 1 dimension |
duke@435 | 265 | #endif |
duke@435 | 266 | assert(check_compiled_frame(thread), "incorrect caller"); |
duke@435 | 267 | assert(oop(elem_type)->is_klass(), "not a class"); |
duke@435 | 268 | jint dims[3]; |
duke@435 | 269 | dims[0] = len1; |
duke@435 | 270 | dims[1] = len2; |
duke@435 | 271 | dims[2] = len3; |
duke@435 | 272 | oop obj = arrayKlass::cast(elem_type)->multi_allocate(3, dims, THREAD); |
duke@435 | 273 | deoptimize_caller_frame(thread, HAS_PENDING_EXCEPTION); |
duke@435 | 274 | thread->set_vm_result(obj); |
duke@435 | 275 | JRT_END |
duke@435 | 276 | |
duke@435 | 277 | // multianewarray for 4 dimensions |
duke@435 | 278 | JRT_ENTRY(void, OptoRuntime::multianewarray4_C(klassOopDesc* elem_type, int len1, int len2, int len3, int len4, JavaThread *thread)) |
duke@435 | 279 | #ifndef PRODUCT |
duke@435 | 280 | SharedRuntime::_multi4_ctr++; // multianewarray for 1 dimension |
duke@435 | 281 | #endif |
duke@435 | 282 | assert(check_compiled_frame(thread), "incorrect caller"); |
duke@435 | 283 | assert(oop(elem_type)->is_klass(), "not a class"); |
duke@435 | 284 | jint dims[4]; |
duke@435 | 285 | dims[0] = len1; |
duke@435 | 286 | dims[1] = len2; |
duke@435 | 287 | dims[2] = len3; |
duke@435 | 288 | dims[3] = len4; |
duke@435 | 289 | oop obj = arrayKlass::cast(elem_type)->multi_allocate(4, dims, THREAD); |
duke@435 | 290 | deoptimize_caller_frame(thread, HAS_PENDING_EXCEPTION); |
duke@435 | 291 | thread->set_vm_result(obj); |
duke@435 | 292 | JRT_END |
duke@435 | 293 | |
duke@435 | 294 | // multianewarray for 5 dimensions |
duke@435 | 295 | JRT_ENTRY(void, OptoRuntime::multianewarray5_C(klassOopDesc* elem_type, int len1, int len2, int len3, int len4, int len5, JavaThread *thread)) |
duke@435 | 296 | #ifndef PRODUCT |
duke@435 | 297 | SharedRuntime::_multi5_ctr++; // multianewarray for 1 dimension |
duke@435 | 298 | #endif |
duke@435 | 299 | assert(check_compiled_frame(thread), "incorrect caller"); |
duke@435 | 300 | assert(oop(elem_type)->is_klass(), "not a class"); |
duke@435 | 301 | jint dims[5]; |
duke@435 | 302 | dims[0] = len1; |
duke@435 | 303 | dims[1] = len2; |
duke@435 | 304 | dims[2] = len3; |
duke@435 | 305 | dims[3] = len4; |
duke@435 | 306 | dims[4] = len5; |
duke@435 | 307 | oop obj = arrayKlass::cast(elem_type)->multi_allocate(5, dims, THREAD); |
duke@435 | 308 | deoptimize_caller_frame(thread, HAS_PENDING_EXCEPTION); |
duke@435 | 309 | thread->set_vm_result(obj); |
duke@435 | 310 | JRT_END |
duke@435 | 311 | |
duke@435 | 312 | const TypeFunc *OptoRuntime::new_instance_Type() { |
duke@435 | 313 | // create input type (domain) |
duke@435 | 314 | const Type **fields = TypeTuple::fields(1); |
duke@435 | 315 | fields[TypeFunc::Parms+0] = TypeInstPtr::NOTNULL; // Klass to be allocated |
duke@435 | 316 | const TypeTuple *domain = TypeTuple::make(TypeFunc::Parms+1, fields); |
duke@435 | 317 | |
duke@435 | 318 | // create result type (range) |
duke@435 | 319 | fields = TypeTuple::fields(1); |
duke@435 | 320 | fields[TypeFunc::Parms+0] = TypeRawPtr::NOTNULL; // Returned oop |
duke@435 | 321 | |
duke@435 | 322 | const TypeTuple *range = TypeTuple::make(TypeFunc::Parms+1, fields); |
duke@435 | 323 | |
duke@435 | 324 | return TypeFunc::make(domain, range); |
duke@435 | 325 | } |
duke@435 | 326 | |
duke@435 | 327 | |
duke@435 | 328 | const TypeFunc *OptoRuntime::athrow_Type() { |
duke@435 | 329 | // create input type (domain) |
duke@435 | 330 | const Type **fields = TypeTuple::fields(1); |
duke@435 | 331 | fields[TypeFunc::Parms+0] = TypeInstPtr::NOTNULL; // Klass to be allocated |
duke@435 | 332 | const TypeTuple *domain = TypeTuple::make(TypeFunc::Parms+1, fields); |
duke@435 | 333 | |
duke@435 | 334 | // create result type (range) |
duke@435 | 335 | fields = TypeTuple::fields(0); |
duke@435 | 336 | |
duke@435 | 337 | const TypeTuple *range = TypeTuple::make(TypeFunc::Parms+0, fields); |
duke@435 | 338 | |
duke@435 | 339 | return TypeFunc::make(domain, range); |
duke@435 | 340 | } |
duke@435 | 341 | |
duke@435 | 342 | |
duke@435 | 343 | const TypeFunc *OptoRuntime::new_array_Type() { |
duke@435 | 344 | // create input type (domain) |
duke@435 | 345 | const Type **fields = TypeTuple::fields(2); |
duke@435 | 346 | fields[TypeFunc::Parms+0] = TypeInstPtr::NOTNULL; // element klass |
duke@435 | 347 | fields[TypeFunc::Parms+1] = TypeInt::INT; // array size |
duke@435 | 348 | const TypeTuple *domain = TypeTuple::make(TypeFunc::Parms+2, fields); |
duke@435 | 349 | |
duke@435 | 350 | // create result type (range) |
duke@435 | 351 | fields = TypeTuple::fields(1); |
duke@435 | 352 | fields[TypeFunc::Parms+0] = TypeRawPtr::NOTNULL; // Returned oop |
duke@435 | 353 | |
duke@435 | 354 | const TypeTuple *range = TypeTuple::make(TypeFunc::Parms+1, fields); |
duke@435 | 355 | |
duke@435 | 356 | return TypeFunc::make(domain, range); |
duke@435 | 357 | } |
duke@435 | 358 | |
duke@435 | 359 | const TypeFunc *OptoRuntime::multianewarray_Type(int ndim) { |
duke@435 | 360 | // create input type (domain) |
duke@435 | 361 | const int nargs = ndim + 1; |
duke@435 | 362 | const Type **fields = TypeTuple::fields(nargs); |
duke@435 | 363 | fields[TypeFunc::Parms+0] = TypeInstPtr::NOTNULL; // element klass |
duke@435 | 364 | for( int i = 1; i < nargs; i++ ) |
duke@435 | 365 | fields[TypeFunc::Parms + i] = TypeInt::INT; // array size |
duke@435 | 366 | const TypeTuple *domain = TypeTuple::make(TypeFunc::Parms+nargs, fields); |
duke@435 | 367 | |
duke@435 | 368 | // create result type (range) |
duke@435 | 369 | fields = TypeTuple::fields(1); |
duke@435 | 370 | fields[TypeFunc::Parms+0] = TypeRawPtr::NOTNULL; // Returned oop |
duke@435 | 371 | const TypeTuple *range = TypeTuple::make(TypeFunc::Parms+1, fields); |
duke@435 | 372 | |
duke@435 | 373 | return TypeFunc::make(domain, range); |
duke@435 | 374 | } |
duke@435 | 375 | |
duke@435 | 376 | const TypeFunc *OptoRuntime::multianewarray2_Type() { |
duke@435 | 377 | return multianewarray_Type(2); |
duke@435 | 378 | } |
duke@435 | 379 | |
duke@435 | 380 | const TypeFunc *OptoRuntime::multianewarray3_Type() { |
duke@435 | 381 | return multianewarray_Type(3); |
duke@435 | 382 | } |
duke@435 | 383 | |
duke@435 | 384 | const TypeFunc *OptoRuntime::multianewarray4_Type() { |
duke@435 | 385 | return multianewarray_Type(4); |
duke@435 | 386 | } |
duke@435 | 387 | |
duke@435 | 388 | const TypeFunc *OptoRuntime::multianewarray5_Type() { |
duke@435 | 389 | return multianewarray_Type(5); |
duke@435 | 390 | } |
duke@435 | 391 | |
ysr@777 | 392 | const TypeFunc *OptoRuntime::g1_wb_pre_Type() { |
ysr@777 | 393 | const Type **fields = TypeTuple::fields(2); |
ysr@777 | 394 | fields[TypeFunc::Parms+0] = TypeInstPtr::NOTNULL; // original field value |
ysr@777 | 395 | fields[TypeFunc::Parms+1] = TypeRawPtr::NOTNULL; // thread |
ysr@777 | 396 | const TypeTuple *domain = TypeTuple::make(TypeFunc::Parms+2, fields); |
ysr@777 | 397 | |
ysr@777 | 398 | // create result type (range) |
ysr@777 | 399 | fields = TypeTuple::fields(0); |
ysr@777 | 400 | const TypeTuple *range = TypeTuple::make(TypeFunc::Parms+0, fields); |
ysr@777 | 401 | |
ysr@777 | 402 | return TypeFunc::make(domain, range); |
ysr@777 | 403 | } |
ysr@777 | 404 | |
ysr@777 | 405 | const TypeFunc *OptoRuntime::g1_wb_post_Type() { |
ysr@777 | 406 | |
ysr@777 | 407 | const Type **fields = TypeTuple::fields(2); |
ysr@777 | 408 | fields[TypeFunc::Parms+0] = TypeRawPtr::NOTNULL; // Card addr |
ysr@777 | 409 | fields[TypeFunc::Parms+1] = TypeRawPtr::NOTNULL; // thread |
ysr@777 | 410 | const TypeTuple *domain = TypeTuple::make(TypeFunc::Parms+2, fields); |
ysr@777 | 411 | |
ysr@777 | 412 | // create result type (range) |
ysr@777 | 413 | fields = TypeTuple::fields(0); |
ysr@777 | 414 | const TypeTuple *range = TypeTuple::make(TypeFunc::Parms, fields); |
ysr@777 | 415 | |
ysr@777 | 416 | return TypeFunc::make(domain, range); |
ysr@777 | 417 | } |
ysr@777 | 418 | |
duke@435 | 419 | const TypeFunc *OptoRuntime::uncommon_trap_Type() { |
duke@435 | 420 | // create input type (domain) |
duke@435 | 421 | const Type **fields = TypeTuple::fields(1); |
duke@435 | 422 | // symbolOop name of class to be loaded |
duke@435 | 423 | fields[TypeFunc::Parms+0] = TypeInt::INT; |
duke@435 | 424 | const TypeTuple *domain = TypeTuple::make(TypeFunc::Parms+1, fields); |
duke@435 | 425 | |
duke@435 | 426 | // create result type (range) |
duke@435 | 427 | fields = TypeTuple::fields(0); |
duke@435 | 428 | const TypeTuple *range = TypeTuple::make(TypeFunc::Parms+0, fields); |
duke@435 | 429 | |
duke@435 | 430 | return TypeFunc::make(domain, range); |
duke@435 | 431 | } |
duke@435 | 432 | |
duke@435 | 433 | # ifdef ENABLE_ZAP_DEAD_LOCALS |
duke@435 | 434 | // Type used for stub generation for zap_dead_locals. |
duke@435 | 435 | // No inputs or outputs |
duke@435 | 436 | const TypeFunc *OptoRuntime::zap_dead_locals_Type() { |
duke@435 | 437 | // create input type (domain) |
duke@435 | 438 | const Type **fields = TypeTuple::fields(0); |
duke@435 | 439 | const TypeTuple *domain = TypeTuple::make(TypeFunc::Parms,fields); |
duke@435 | 440 | |
duke@435 | 441 | // create result type (range) |
duke@435 | 442 | fields = TypeTuple::fields(0); |
duke@435 | 443 | const TypeTuple *range = TypeTuple::make(TypeFunc::Parms,fields); |
duke@435 | 444 | |
duke@435 | 445 | return TypeFunc::make(domain,range); |
duke@435 | 446 | } |
duke@435 | 447 | # endif |
duke@435 | 448 | |
duke@435 | 449 | |
duke@435 | 450 | //----------------------------------------------------------------------------- |
duke@435 | 451 | // Monitor Handling |
duke@435 | 452 | const TypeFunc *OptoRuntime::complete_monitor_enter_Type() { |
duke@435 | 453 | // create input type (domain) |
duke@435 | 454 | const Type **fields = TypeTuple::fields(2); |
duke@435 | 455 | fields[TypeFunc::Parms+0] = TypeInstPtr::NOTNULL; // Object to be Locked |
duke@435 | 456 | fields[TypeFunc::Parms+1] = TypeRawPtr::BOTTOM; // Address of stack location for lock |
duke@435 | 457 | const TypeTuple *domain = TypeTuple::make(TypeFunc::Parms+2,fields); |
duke@435 | 458 | |
duke@435 | 459 | // create result type (range) |
duke@435 | 460 | fields = TypeTuple::fields(0); |
duke@435 | 461 | |
duke@435 | 462 | const TypeTuple *range = TypeTuple::make(TypeFunc::Parms+0,fields); |
duke@435 | 463 | |
duke@435 | 464 | return TypeFunc::make(domain,range); |
duke@435 | 465 | } |
duke@435 | 466 | |
duke@435 | 467 | |
duke@435 | 468 | //----------------------------------------------------------------------------- |
duke@435 | 469 | const TypeFunc *OptoRuntime::complete_monitor_exit_Type() { |
duke@435 | 470 | // create input type (domain) |
duke@435 | 471 | const Type **fields = TypeTuple::fields(2); |
duke@435 | 472 | fields[TypeFunc::Parms+0] = TypeInstPtr::NOTNULL; // Object to be Locked |
duke@435 | 473 | fields[TypeFunc::Parms+1] = TypeRawPtr::BOTTOM; // Address of stack location for lock |
duke@435 | 474 | const TypeTuple *domain = TypeTuple::make(TypeFunc::Parms+2,fields); |
duke@435 | 475 | |
duke@435 | 476 | // create result type (range) |
duke@435 | 477 | fields = TypeTuple::fields(0); |
duke@435 | 478 | |
duke@435 | 479 | const TypeTuple *range = TypeTuple::make(TypeFunc::Parms+0,fields); |
duke@435 | 480 | |
duke@435 | 481 | return TypeFunc::make(domain,range); |
duke@435 | 482 | } |
duke@435 | 483 | |
duke@435 | 484 | const TypeFunc* OptoRuntime::flush_windows_Type() { |
duke@435 | 485 | // create input type (domain) |
duke@435 | 486 | const Type** fields = TypeTuple::fields(1); |
duke@435 | 487 | fields[TypeFunc::Parms+0] = NULL; // void |
duke@435 | 488 | const TypeTuple *domain = TypeTuple::make(TypeFunc::Parms, fields); |
duke@435 | 489 | |
duke@435 | 490 | // create result type |
duke@435 | 491 | fields = TypeTuple::fields(1); |
duke@435 | 492 | fields[TypeFunc::Parms+0] = NULL; // void |
duke@435 | 493 | const TypeTuple *range = TypeTuple::make(TypeFunc::Parms, fields); |
duke@435 | 494 | |
duke@435 | 495 | return TypeFunc::make(domain, range); |
duke@435 | 496 | } |
duke@435 | 497 | |
duke@435 | 498 | const TypeFunc* OptoRuntime::l2f_Type() { |
duke@435 | 499 | // create input type (domain) |
duke@435 | 500 | const Type **fields = TypeTuple::fields(2); |
duke@435 | 501 | fields[TypeFunc::Parms+0] = TypeLong::LONG; |
duke@435 | 502 | fields[TypeFunc::Parms+1] = Type::HALF; |
duke@435 | 503 | const TypeTuple *domain = TypeTuple::make(TypeFunc::Parms+2, fields); |
duke@435 | 504 | |
duke@435 | 505 | // create result type (range) |
duke@435 | 506 | fields = TypeTuple::fields(1); |
duke@435 | 507 | fields[TypeFunc::Parms+0] = Type::FLOAT; |
duke@435 | 508 | const TypeTuple *range = TypeTuple::make(TypeFunc::Parms+1, fields); |
duke@435 | 509 | |
duke@435 | 510 | return TypeFunc::make(domain, range); |
duke@435 | 511 | } |
duke@435 | 512 | |
duke@435 | 513 | const TypeFunc* OptoRuntime::modf_Type() { |
duke@435 | 514 | const Type **fields = TypeTuple::fields(2); |
duke@435 | 515 | fields[TypeFunc::Parms+0] = Type::FLOAT; |
duke@435 | 516 | fields[TypeFunc::Parms+1] = Type::FLOAT; |
duke@435 | 517 | const TypeTuple *domain = TypeTuple::make(TypeFunc::Parms+2, fields); |
duke@435 | 518 | |
duke@435 | 519 | // create result type (range) |
duke@435 | 520 | fields = TypeTuple::fields(1); |
duke@435 | 521 | fields[TypeFunc::Parms+0] = Type::FLOAT; |
duke@435 | 522 | |
duke@435 | 523 | const TypeTuple *range = TypeTuple::make(TypeFunc::Parms+1, fields); |
duke@435 | 524 | |
duke@435 | 525 | return TypeFunc::make(domain, range); |
duke@435 | 526 | } |
duke@435 | 527 | |
duke@435 | 528 | const TypeFunc *OptoRuntime::Math_D_D_Type() { |
duke@435 | 529 | // create input type (domain) |
duke@435 | 530 | const Type **fields = TypeTuple::fields(2); |
duke@435 | 531 | // symbolOop name of class to be loaded |
duke@435 | 532 | fields[TypeFunc::Parms+0] = Type::DOUBLE; |
duke@435 | 533 | fields[TypeFunc::Parms+1] = Type::HALF; |
duke@435 | 534 | const TypeTuple *domain = TypeTuple::make(TypeFunc::Parms+2, fields); |
duke@435 | 535 | |
duke@435 | 536 | // create result type (range) |
duke@435 | 537 | fields = TypeTuple::fields(2); |
duke@435 | 538 | fields[TypeFunc::Parms+0] = Type::DOUBLE; |
duke@435 | 539 | fields[TypeFunc::Parms+1] = Type::HALF; |
duke@435 | 540 | const TypeTuple *range = TypeTuple::make(TypeFunc::Parms+2, fields); |
duke@435 | 541 | |
duke@435 | 542 | return TypeFunc::make(domain, range); |
duke@435 | 543 | } |
duke@435 | 544 | |
duke@435 | 545 | const TypeFunc* OptoRuntime::Math_DD_D_Type() { |
duke@435 | 546 | const Type **fields = TypeTuple::fields(4); |
duke@435 | 547 | fields[TypeFunc::Parms+0] = Type::DOUBLE; |
duke@435 | 548 | fields[TypeFunc::Parms+1] = Type::HALF; |
duke@435 | 549 | fields[TypeFunc::Parms+2] = Type::DOUBLE; |
duke@435 | 550 | fields[TypeFunc::Parms+3] = Type::HALF; |
duke@435 | 551 | const TypeTuple *domain = TypeTuple::make(TypeFunc::Parms+4, fields); |
duke@435 | 552 | |
duke@435 | 553 | // create result type (range) |
duke@435 | 554 | fields = TypeTuple::fields(2); |
duke@435 | 555 | fields[TypeFunc::Parms+0] = Type::DOUBLE; |
duke@435 | 556 | fields[TypeFunc::Parms+1] = Type::HALF; |
duke@435 | 557 | const TypeTuple *range = TypeTuple::make(TypeFunc::Parms+2, fields); |
duke@435 | 558 | |
duke@435 | 559 | return TypeFunc::make(domain, range); |
duke@435 | 560 | } |
duke@435 | 561 | |
duke@435 | 562 | //-------------- currentTimeMillis |
duke@435 | 563 | |
duke@435 | 564 | const TypeFunc* OptoRuntime::current_time_millis_Type() { |
duke@435 | 565 | // create input type (domain) |
duke@435 | 566 | const Type **fields = TypeTuple::fields(0); |
duke@435 | 567 | const TypeTuple *domain = TypeTuple::make(TypeFunc::Parms+0, fields); |
duke@435 | 568 | |
duke@435 | 569 | // create result type (range) |
duke@435 | 570 | fields = TypeTuple::fields(2); |
duke@435 | 571 | fields[TypeFunc::Parms+0] = TypeLong::LONG; |
duke@435 | 572 | fields[TypeFunc::Parms+1] = Type::HALF; |
duke@435 | 573 | const TypeTuple *range = TypeTuple::make(TypeFunc::Parms+2, fields); |
duke@435 | 574 | |
duke@435 | 575 | return TypeFunc::make(domain, range); |
duke@435 | 576 | } |
duke@435 | 577 | |
duke@435 | 578 | // arraycopy stub variations: |
duke@435 | 579 | enum ArrayCopyType { |
duke@435 | 580 | ac_fast, // void(ptr, ptr, size_t) |
duke@435 | 581 | ac_checkcast, // int(ptr, ptr, size_t, size_t, ptr) |
duke@435 | 582 | ac_slow, // void(ptr, int, ptr, int, int) |
duke@435 | 583 | ac_generic // int(ptr, int, ptr, int, int) |
duke@435 | 584 | }; |
duke@435 | 585 | |
duke@435 | 586 | static const TypeFunc* make_arraycopy_Type(ArrayCopyType act) { |
duke@435 | 587 | // create input type (domain) |
duke@435 | 588 | int num_args = (act == ac_fast ? 3 : 5); |
duke@435 | 589 | int num_size_args = (act == ac_fast ? 1 : act == ac_checkcast ? 2 : 0); |
duke@435 | 590 | int argcnt = num_args; |
duke@435 | 591 | LP64_ONLY(argcnt += num_size_args); // halfwords for lengths |
duke@435 | 592 | const Type** fields = TypeTuple::fields(argcnt); |
duke@435 | 593 | int argp = TypeFunc::Parms; |
duke@435 | 594 | fields[argp++] = TypePtr::NOTNULL; // src |
duke@435 | 595 | if (num_size_args == 0) { |
duke@435 | 596 | fields[argp++] = TypeInt::INT; // src_pos |
duke@435 | 597 | } |
duke@435 | 598 | fields[argp++] = TypePtr::NOTNULL; // dest |
duke@435 | 599 | if (num_size_args == 0) { |
duke@435 | 600 | fields[argp++] = TypeInt::INT; // dest_pos |
duke@435 | 601 | fields[argp++] = TypeInt::INT; // length |
duke@435 | 602 | } |
duke@435 | 603 | while (num_size_args-- > 0) { |
duke@435 | 604 | fields[argp++] = TypeX_X; // size in whatevers (size_t) |
duke@435 | 605 | LP64_ONLY(fields[argp++] = Type::HALF); // other half of long length |
duke@435 | 606 | } |
duke@435 | 607 | if (act == ac_checkcast) { |
duke@435 | 608 | fields[argp++] = TypePtr::NOTNULL; // super_klass |
duke@435 | 609 | } |
duke@435 | 610 | assert(argp == TypeFunc::Parms+argcnt, "correct decoding of act"); |
duke@435 | 611 | const TypeTuple* domain = TypeTuple::make(TypeFunc::Parms+argcnt, fields); |
duke@435 | 612 | |
duke@435 | 613 | // create result type if needed |
duke@435 | 614 | int retcnt = (act == ac_checkcast || act == ac_generic ? 1 : 0); |
duke@435 | 615 | fields = TypeTuple::fields(1); |
duke@435 | 616 | if (retcnt == 0) |
duke@435 | 617 | fields[TypeFunc::Parms+0] = NULL; // void |
duke@435 | 618 | else |
duke@435 | 619 | fields[TypeFunc::Parms+0] = TypeInt::INT; // status result, if needed |
duke@435 | 620 | const TypeTuple* range = TypeTuple::make(TypeFunc::Parms+retcnt, fields); |
duke@435 | 621 | return TypeFunc::make(domain, range); |
duke@435 | 622 | } |
duke@435 | 623 | |
duke@435 | 624 | const TypeFunc* OptoRuntime::fast_arraycopy_Type() { |
duke@435 | 625 | // This signature is simple: Two base pointers and a size_t. |
duke@435 | 626 | return make_arraycopy_Type(ac_fast); |
duke@435 | 627 | } |
duke@435 | 628 | |
duke@435 | 629 | const TypeFunc* OptoRuntime::checkcast_arraycopy_Type() { |
duke@435 | 630 | // An extension of fast_arraycopy_Type which adds type checking. |
duke@435 | 631 | return make_arraycopy_Type(ac_checkcast); |
duke@435 | 632 | } |
duke@435 | 633 | |
duke@435 | 634 | const TypeFunc* OptoRuntime::slow_arraycopy_Type() { |
duke@435 | 635 | // This signature is exactly the same as System.arraycopy. |
duke@435 | 636 | // There are no intptr_t (int/long) arguments. |
duke@435 | 637 | return make_arraycopy_Type(ac_slow); |
duke@435 | 638 | } |
duke@435 | 639 | |
duke@435 | 640 | const TypeFunc* OptoRuntime::generic_arraycopy_Type() { |
duke@435 | 641 | // This signature is like System.arraycopy, except that it returns status. |
duke@435 | 642 | return make_arraycopy_Type(ac_generic); |
duke@435 | 643 | } |
duke@435 | 644 | |
duke@435 | 645 | |
duke@435 | 646 | //------------- Interpreter state access for on stack replacement |
duke@435 | 647 | const TypeFunc* OptoRuntime::osr_end_Type() { |
duke@435 | 648 | // create input type (domain) |
duke@435 | 649 | const Type **fields = TypeTuple::fields(1); |
duke@435 | 650 | fields[TypeFunc::Parms+0] = TypeRawPtr::BOTTOM; // OSR temp buf |
duke@435 | 651 | const TypeTuple *domain = TypeTuple::make(TypeFunc::Parms+1, fields); |
duke@435 | 652 | |
duke@435 | 653 | // create result type |
duke@435 | 654 | fields = TypeTuple::fields(1); |
duke@435 | 655 | // fields[TypeFunc::Parms+0] = TypeInstPtr::NOTNULL; // locked oop |
duke@435 | 656 | fields[TypeFunc::Parms+0] = NULL; // void |
duke@435 | 657 | const TypeTuple *range = TypeTuple::make(TypeFunc::Parms, fields); |
duke@435 | 658 | return TypeFunc::make(domain, range); |
duke@435 | 659 | } |
duke@435 | 660 | |
duke@435 | 661 | //-------------- methodData update helpers |
duke@435 | 662 | |
duke@435 | 663 | const TypeFunc* OptoRuntime::profile_receiver_type_Type() { |
duke@435 | 664 | // create input type (domain) |
duke@435 | 665 | const Type **fields = TypeTuple::fields(2); |
duke@435 | 666 | fields[TypeFunc::Parms+0] = TypeAryPtr::NOTNULL; // methodData pointer |
duke@435 | 667 | fields[TypeFunc::Parms+1] = TypeInstPtr::BOTTOM; // receiver oop |
duke@435 | 668 | const TypeTuple *domain = TypeTuple::make(TypeFunc::Parms+2, fields); |
duke@435 | 669 | |
duke@435 | 670 | // create result type |
duke@435 | 671 | fields = TypeTuple::fields(1); |
duke@435 | 672 | fields[TypeFunc::Parms+0] = NULL; // void |
duke@435 | 673 | const TypeTuple *range = TypeTuple::make(TypeFunc::Parms, fields); |
duke@435 | 674 | return TypeFunc::make(domain,range); |
duke@435 | 675 | } |
duke@435 | 676 | |
duke@435 | 677 | JRT_LEAF(void, OptoRuntime::profile_receiver_type_C(DataLayout* data, oopDesc* receiver)) |
duke@435 | 678 | if (receiver == NULL) return; |
duke@435 | 679 | klassOop receiver_klass = receiver->klass(); |
duke@435 | 680 | |
duke@435 | 681 | intptr_t* mdp = ((intptr_t*)(data)) + DataLayout::header_size_in_cells(); |
duke@435 | 682 | int empty_row = -1; // free row, if any is encountered |
duke@435 | 683 | |
duke@435 | 684 | // ReceiverTypeData* vc = new ReceiverTypeData(mdp); |
duke@435 | 685 | for (uint row = 0; row < ReceiverTypeData::row_limit(); row++) { |
duke@435 | 686 | // if (vc->receiver(row) == receiver_klass) |
duke@435 | 687 | int receiver_off = ReceiverTypeData::receiver_cell_index(row); |
duke@435 | 688 | intptr_t row_recv = *(mdp + receiver_off); |
duke@435 | 689 | if (row_recv == (intptr_t) receiver_klass) { |
duke@435 | 690 | // vc->set_receiver_count(row, vc->receiver_count(row) + DataLayout::counter_increment); |
duke@435 | 691 | int count_off = ReceiverTypeData::receiver_count_cell_index(row); |
duke@435 | 692 | *(mdp + count_off) += DataLayout::counter_increment; |
duke@435 | 693 | return; |
duke@435 | 694 | } else if (row_recv == 0) { |
duke@435 | 695 | // else if (vc->receiver(row) == NULL) |
duke@435 | 696 | empty_row = (int) row; |
duke@435 | 697 | } |
duke@435 | 698 | } |
duke@435 | 699 | |
duke@435 | 700 | if (empty_row != -1) { |
duke@435 | 701 | int receiver_off = ReceiverTypeData::receiver_cell_index(empty_row); |
duke@435 | 702 | // vc->set_receiver(empty_row, receiver_klass); |
duke@435 | 703 | *(mdp + receiver_off) = (intptr_t) receiver_klass; |
duke@435 | 704 | // vc->set_receiver_count(empty_row, DataLayout::counter_increment); |
duke@435 | 705 | int count_off = ReceiverTypeData::receiver_count_cell_index(empty_row); |
duke@435 | 706 | *(mdp + count_off) = DataLayout::counter_increment; |
duke@435 | 707 | } |
duke@435 | 708 | JRT_END |
duke@435 | 709 | |
duke@435 | 710 | //----------------------------------------------------------------------------- |
duke@435 | 711 | // implicit exception support. |
duke@435 | 712 | |
duke@435 | 713 | static void report_null_exception_in_code_cache(address exception_pc) { |
duke@435 | 714 | ResourceMark rm; |
duke@435 | 715 | CodeBlob* n = CodeCache::find_blob(exception_pc); |
duke@435 | 716 | if (n != NULL) { |
duke@435 | 717 | tty->print_cr("#"); |
duke@435 | 718 | tty->print_cr("# HotSpot Runtime Error, null exception in generated code"); |
duke@435 | 719 | tty->print_cr("#"); |
duke@435 | 720 | tty->print_cr("# pc where exception happened = " INTPTR_FORMAT, exception_pc); |
duke@435 | 721 | |
duke@435 | 722 | if (n->is_nmethod()) { |
duke@435 | 723 | methodOop method = ((nmethod*)n)->method(); |
duke@435 | 724 | tty->print_cr("# Method where it happened %s.%s ", Klass::cast(method->method_holder())->name()->as_C_string(), method->name()->as_C_string()); |
duke@435 | 725 | tty->print_cr("#"); |
duke@435 | 726 | if (ShowMessageBoxOnError && UpdateHotSpotCompilerFileOnError) { |
duke@435 | 727 | const char* title = "HotSpot Runtime Error"; |
duke@435 | 728 | const char* question = "Do you want to exclude compilation of this method in future runs?"; |
duke@435 | 729 | if (os::message_box(title, question)) { |
duke@435 | 730 | CompilerOracle::append_comment_to_file(""); |
duke@435 | 731 | CompilerOracle::append_comment_to_file("Null exception in compiled code resulted in the following exclude"); |
duke@435 | 732 | CompilerOracle::append_comment_to_file(""); |
duke@435 | 733 | CompilerOracle::append_exclude_to_file(method); |
duke@435 | 734 | tty->print_cr("#"); |
duke@435 | 735 | tty->print_cr("# %s has been updated to exclude the specified method", CompileCommandFile); |
duke@435 | 736 | tty->print_cr("#"); |
duke@435 | 737 | } |
duke@435 | 738 | } |
duke@435 | 739 | fatal("Implicit null exception happened in compiled method"); |
duke@435 | 740 | } else { |
duke@435 | 741 | n->print(); |
duke@435 | 742 | fatal("Implicit null exception happened in generated stub"); |
duke@435 | 743 | } |
duke@435 | 744 | } |
duke@435 | 745 | fatal("Implicit null exception at wrong place"); |
duke@435 | 746 | } |
duke@435 | 747 | |
duke@435 | 748 | |
duke@435 | 749 | //------------------------------------------------------------------------------------- |
duke@435 | 750 | // register policy |
duke@435 | 751 | |
duke@435 | 752 | bool OptoRuntime::is_callee_saved_register(MachRegisterNumbers reg) { |
duke@435 | 753 | assert(reg >= 0 && reg < _last_Mach_Reg, "must be a machine register"); |
duke@435 | 754 | switch (register_save_policy[reg]) { |
duke@435 | 755 | case 'C': return false; //SOC |
duke@435 | 756 | case 'E': return true ; //SOE |
duke@435 | 757 | case 'N': return false; //NS |
duke@435 | 758 | case 'A': return false; //AS |
duke@435 | 759 | } |
duke@435 | 760 | ShouldNotReachHere(); |
duke@435 | 761 | return false; |
duke@435 | 762 | } |
duke@435 | 763 | |
duke@435 | 764 | //----------------------------------------------------------------------- |
duke@435 | 765 | // Exceptions |
duke@435 | 766 | // |
duke@435 | 767 | |
duke@435 | 768 | static void trace_exception(oop exception_oop, address exception_pc, const char* msg) PRODUCT_RETURN; |
duke@435 | 769 | |
duke@435 | 770 | // The method is an entry that is always called by a C++ method not |
duke@435 | 771 | // directly from compiled code. Compiled code will call the C++ method following. |
duke@435 | 772 | // We can't allow async exception to be installed during exception processing. |
duke@435 | 773 | JRT_ENTRY_NO_ASYNC(address, OptoRuntime::handle_exception_C_helper(JavaThread* thread, nmethod* &nm)) |
duke@435 | 774 | |
duke@435 | 775 | // Do not confuse exception_oop with pending_exception. The exception_oop |
duke@435 | 776 | // is only used to pass arguments into the method. Not for general |
duke@435 | 777 | // exception handling. DO NOT CHANGE IT to use pending_exception, since |
duke@435 | 778 | // the runtime stubs checks this on exit. |
duke@435 | 779 | assert(thread->exception_oop() != NULL, "exception oop is found"); |
duke@435 | 780 | address handler_address = NULL; |
duke@435 | 781 | |
duke@435 | 782 | Handle exception(thread, thread->exception_oop()); |
duke@435 | 783 | |
duke@435 | 784 | if (TraceExceptions) { |
duke@435 | 785 | trace_exception(exception(), thread->exception_pc(), ""); |
duke@435 | 786 | } |
duke@435 | 787 | // for AbortVMOnException flag |
duke@435 | 788 | NOT_PRODUCT(Exceptions::debug_check_abort(exception)); |
duke@435 | 789 | |
duke@435 | 790 | #ifdef ASSERT |
duke@435 | 791 | if (!(exception->is_a(SystemDictionary::throwable_klass()))) { |
duke@435 | 792 | // should throw an exception here |
duke@435 | 793 | ShouldNotReachHere(); |
duke@435 | 794 | } |
duke@435 | 795 | #endif |
duke@435 | 796 | |
duke@435 | 797 | |
duke@435 | 798 | // new exception handling: this method is entered only from adapters |
duke@435 | 799 | // exceptions from compiled java methods are handled in compiled code |
duke@435 | 800 | // using rethrow node |
duke@435 | 801 | |
duke@435 | 802 | address pc = thread->exception_pc(); |
duke@435 | 803 | nm = CodeCache::find_nmethod(pc); |
duke@435 | 804 | assert(nm != NULL, "No NMethod found"); |
duke@435 | 805 | if (nm->is_native_method()) { |
duke@435 | 806 | fatal("Native mathod should not have path to exception handling"); |
duke@435 | 807 | } else { |
duke@435 | 808 | // we are switching to old paradigm: search for exception handler in caller_frame |
duke@435 | 809 | // instead in exception handler of caller_frame.sender() |
duke@435 | 810 | |
duke@435 | 811 | if (JvmtiExport::can_post_exceptions()) { |
duke@435 | 812 | // "Full-speed catching" is not necessary here, |
duke@435 | 813 | // since we're notifying the VM on every catch. |
duke@435 | 814 | // Force deoptimization and the rest of the lookup |
duke@435 | 815 | // will be fine. |
duke@435 | 816 | deoptimize_caller_frame(thread, true); |
duke@435 | 817 | } |
duke@435 | 818 | |
duke@435 | 819 | // Check the stack guard pages. If enabled, look for handler in this frame; |
duke@435 | 820 | // otherwise, forcibly unwind the frame. |
duke@435 | 821 | // |
duke@435 | 822 | // 4826555: use default current sp for reguard_stack instead of &nm: it's more accurate. |
duke@435 | 823 | bool force_unwind = !thread->reguard_stack(); |
duke@435 | 824 | bool deopting = false; |
duke@435 | 825 | if (nm->is_deopt_pc(pc)) { |
duke@435 | 826 | deopting = true; |
duke@435 | 827 | RegisterMap map(thread, false); |
duke@435 | 828 | frame deoptee = thread->last_frame().sender(&map); |
duke@435 | 829 | assert(deoptee.is_deoptimized_frame(), "must be deopted"); |
duke@435 | 830 | // Adjust the pc back to the original throwing pc |
duke@435 | 831 | pc = deoptee.pc(); |
duke@435 | 832 | } |
duke@435 | 833 | |
duke@435 | 834 | // If we are forcing an unwind because of stack overflow then deopt is |
duke@435 | 835 | // irrelevant sice we are throwing the frame away anyway. |
duke@435 | 836 | |
duke@435 | 837 | if (deopting && !force_unwind) { |
duke@435 | 838 | handler_address = SharedRuntime::deopt_blob()->unpack_with_exception(); |
duke@435 | 839 | } else { |
duke@435 | 840 | |
duke@435 | 841 | handler_address = |
duke@435 | 842 | force_unwind ? NULL : nm->handler_for_exception_and_pc(exception, pc); |
duke@435 | 843 | |
duke@435 | 844 | if (handler_address == NULL) { |
duke@435 | 845 | handler_address = SharedRuntime::compute_compiled_exc_handler(nm, pc, exception, force_unwind, true); |
duke@435 | 846 | assert (handler_address != NULL, "must have compiled handler"); |
duke@435 | 847 | // Update the exception cache only when the unwind was not forced. |
duke@435 | 848 | if (!force_unwind) { |
duke@435 | 849 | nm->add_handler_for_exception_and_pc(exception,pc,handler_address); |
duke@435 | 850 | } |
duke@435 | 851 | } else { |
duke@435 | 852 | assert(handler_address == SharedRuntime::compute_compiled_exc_handler(nm, pc, exception, force_unwind, true), "Must be the same"); |
duke@435 | 853 | } |
duke@435 | 854 | } |
duke@435 | 855 | |
duke@435 | 856 | thread->set_exception_pc(pc); |
duke@435 | 857 | thread->set_exception_handler_pc(handler_address); |
duke@435 | 858 | thread->set_exception_stack_size(0); |
duke@435 | 859 | } |
duke@435 | 860 | |
duke@435 | 861 | // Restore correct return pc. Was saved above. |
duke@435 | 862 | thread->set_exception_oop(exception()); |
duke@435 | 863 | return handler_address; |
duke@435 | 864 | |
duke@435 | 865 | JRT_END |
duke@435 | 866 | |
duke@435 | 867 | // We are entering here from exception_blob |
duke@435 | 868 | // If there is a compiled exception handler in this method, we will continue there; |
duke@435 | 869 | // otherwise we will unwind the stack and continue at the caller of top frame method |
duke@435 | 870 | // Note we enter without the usual JRT wrapper. We will call a helper routine that |
duke@435 | 871 | // will do the normal VM entry. We do it this way so that we can see if the nmethod |
duke@435 | 872 | // we looked up the handler for has been deoptimized in the meantime. If it has been |
duke@435 | 873 | // we must not use the handler and instread return the deopt blob. |
duke@435 | 874 | address OptoRuntime::handle_exception_C(JavaThread* thread) { |
duke@435 | 875 | // |
duke@435 | 876 | // We are in Java not VM and in debug mode we have a NoHandleMark |
duke@435 | 877 | // |
duke@435 | 878 | #ifndef PRODUCT |
duke@435 | 879 | SharedRuntime::_find_handler_ctr++; // find exception handler |
duke@435 | 880 | #endif |
duke@435 | 881 | debug_only(NoHandleMark __hm;) |
duke@435 | 882 | nmethod* nm = NULL; |
duke@435 | 883 | address handler_address = NULL; |
duke@435 | 884 | { |
duke@435 | 885 | // Enter the VM |
duke@435 | 886 | |
duke@435 | 887 | ResetNoHandleMark rnhm; |
duke@435 | 888 | handler_address = handle_exception_C_helper(thread, nm); |
duke@435 | 889 | } |
duke@435 | 890 | |
duke@435 | 891 | // Back in java: Use no oops, DON'T safepoint |
duke@435 | 892 | |
duke@435 | 893 | // Now check to see if the handler we are returning is in a now |
duke@435 | 894 | // deoptimized frame |
duke@435 | 895 | |
duke@435 | 896 | if (nm != NULL) { |
duke@435 | 897 | RegisterMap map(thread, false); |
duke@435 | 898 | frame caller = thread->last_frame().sender(&map); |
duke@435 | 899 | #ifdef ASSERT |
duke@435 | 900 | assert(caller.is_compiled_frame(), "must be"); |
duke@435 | 901 | #endif // ASSERT |
duke@435 | 902 | if (caller.is_deoptimized_frame()) { |
duke@435 | 903 | handler_address = SharedRuntime::deopt_blob()->unpack_with_exception(); |
duke@435 | 904 | } |
duke@435 | 905 | } |
duke@435 | 906 | return handler_address; |
duke@435 | 907 | } |
duke@435 | 908 | |
duke@435 | 909 | //------------------------------rethrow---------------------------------------- |
duke@435 | 910 | // We get here after compiled code has executed a 'RethrowNode'. The callee |
duke@435 | 911 | // is either throwing or rethrowing an exception. The callee-save registers |
duke@435 | 912 | // have been restored, synchronized objects have been unlocked and the callee |
duke@435 | 913 | // stack frame has been removed. The return address was passed in. |
duke@435 | 914 | // Exception oop is passed as the 1st argument. This routine is then called |
duke@435 | 915 | // from the stub. On exit, we know where to jump in the caller's code. |
duke@435 | 916 | // After this C code exits, the stub will pop his frame and end in a jump |
duke@435 | 917 | // (instead of a return). We enter the caller's default handler. |
duke@435 | 918 | // |
duke@435 | 919 | // This must be JRT_LEAF: |
duke@435 | 920 | // - caller will not change its state as we cannot block on exit, |
duke@435 | 921 | // therefore raw_exception_handler_for_return_address is all it takes |
duke@435 | 922 | // to handle deoptimized blobs |
duke@435 | 923 | // |
duke@435 | 924 | // However, there needs to be a safepoint check in the middle! So compiled |
duke@435 | 925 | // safepoints are completely watertight. |
duke@435 | 926 | // |
duke@435 | 927 | // Thus, it cannot be a leaf since it contains the No_GC_Verifier. |
duke@435 | 928 | // |
duke@435 | 929 | // *THIS IS NOT RECOMMENDED PROGRAMMING STYLE* |
duke@435 | 930 | // |
duke@435 | 931 | address OptoRuntime::rethrow_C(oopDesc* exception, JavaThread* thread, address ret_pc) { |
duke@435 | 932 | #ifndef PRODUCT |
duke@435 | 933 | SharedRuntime::_rethrow_ctr++; // count rethrows |
duke@435 | 934 | #endif |
duke@435 | 935 | assert (exception != NULL, "should have thrown a NULLPointerException"); |
duke@435 | 936 | #ifdef ASSERT |
duke@435 | 937 | if (!(exception->is_a(SystemDictionary::throwable_klass()))) { |
duke@435 | 938 | // should throw an exception here |
duke@435 | 939 | ShouldNotReachHere(); |
duke@435 | 940 | } |
duke@435 | 941 | #endif |
duke@435 | 942 | |
duke@435 | 943 | thread->set_vm_result(exception); |
duke@435 | 944 | // Frame not compiled (handles deoptimization blob) |
duke@435 | 945 | return SharedRuntime::raw_exception_handler_for_return_address(ret_pc); |
duke@435 | 946 | } |
duke@435 | 947 | |
duke@435 | 948 | |
duke@435 | 949 | const TypeFunc *OptoRuntime::rethrow_Type() { |
duke@435 | 950 | // create input type (domain) |
duke@435 | 951 | const Type **fields = TypeTuple::fields(1); |
duke@435 | 952 | fields[TypeFunc::Parms+0] = TypeInstPtr::NOTNULL; // Exception oop |
duke@435 | 953 | const TypeTuple *domain = TypeTuple::make(TypeFunc::Parms+1,fields); |
duke@435 | 954 | |
duke@435 | 955 | // create result type (range) |
duke@435 | 956 | fields = TypeTuple::fields(1); |
duke@435 | 957 | fields[TypeFunc::Parms+0] = TypeInstPtr::NOTNULL; // Exception oop |
duke@435 | 958 | const TypeTuple *range = TypeTuple::make(TypeFunc::Parms+1, fields); |
duke@435 | 959 | |
duke@435 | 960 | return TypeFunc::make(domain, range); |
duke@435 | 961 | } |
duke@435 | 962 | |
duke@435 | 963 | |
duke@435 | 964 | void OptoRuntime::deoptimize_caller_frame(JavaThread *thread, bool doit) { |
duke@435 | 965 | // Deoptimize frame |
duke@435 | 966 | if (doit) { |
duke@435 | 967 | // Called from within the owner thread, so no need for safepoint |
duke@435 | 968 | RegisterMap reg_map(thread); |
duke@435 | 969 | frame stub_frame = thread->last_frame(); |
duke@435 | 970 | assert(stub_frame.is_runtime_frame() || exception_blob()->contains(stub_frame.pc()), "sanity check"); |
duke@435 | 971 | frame caller_frame = stub_frame.sender(®_map); |
duke@435 | 972 | |
duke@435 | 973 | VM_DeoptimizeFrame deopt(thread, caller_frame.id()); |
duke@435 | 974 | VMThread::execute(&deopt); |
duke@435 | 975 | } |
duke@435 | 976 | } |
duke@435 | 977 | |
duke@435 | 978 | |
duke@435 | 979 | const TypeFunc *OptoRuntime::register_finalizer_Type() { |
duke@435 | 980 | // create input type (domain) |
duke@435 | 981 | const Type **fields = TypeTuple::fields(1); |
duke@435 | 982 | fields[TypeFunc::Parms+0] = TypeInstPtr::NOTNULL; // oop; Receiver |
duke@435 | 983 | // // The JavaThread* is passed to each routine as the last argument |
duke@435 | 984 | // fields[TypeFunc::Parms+1] = TypeRawPtr::NOTNULL; // JavaThread *; Executing thread |
duke@435 | 985 | const TypeTuple *domain = TypeTuple::make(TypeFunc::Parms+1,fields); |
duke@435 | 986 | |
duke@435 | 987 | // create result type (range) |
duke@435 | 988 | fields = TypeTuple::fields(0); |
duke@435 | 989 | |
duke@435 | 990 | const TypeTuple *range = TypeTuple::make(TypeFunc::Parms+0,fields); |
duke@435 | 991 | |
duke@435 | 992 | return TypeFunc::make(domain,range); |
duke@435 | 993 | } |
duke@435 | 994 | |
duke@435 | 995 | |
duke@435 | 996 | //----------------------------------------------------------------------------- |
duke@435 | 997 | // Dtrace support. entry and exit probes have the same signature |
duke@435 | 998 | const TypeFunc *OptoRuntime::dtrace_method_entry_exit_Type() { |
duke@435 | 999 | // create input type (domain) |
duke@435 | 1000 | const Type **fields = TypeTuple::fields(2); |
duke@435 | 1001 | fields[TypeFunc::Parms+0] = TypeRawPtr::BOTTOM; // Thread-local storage |
duke@435 | 1002 | fields[TypeFunc::Parms+1] = TypeInstPtr::NOTNULL; // methodOop; Method we are entering |
duke@435 | 1003 | const TypeTuple *domain = TypeTuple::make(TypeFunc::Parms+2,fields); |
duke@435 | 1004 | |
duke@435 | 1005 | // create result type (range) |
duke@435 | 1006 | fields = TypeTuple::fields(0); |
duke@435 | 1007 | |
duke@435 | 1008 | const TypeTuple *range = TypeTuple::make(TypeFunc::Parms+0,fields); |
duke@435 | 1009 | |
duke@435 | 1010 | return TypeFunc::make(domain,range); |
duke@435 | 1011 | } |
duke@435 | 1012 | |
duke@435 | 1013 | const TypeFunc *OptoRuntime::dtrace_object_alloc_Type() { |
duke@435 | 1014 | // create input type (domain) |
duke@435 | 1015 | const Type **fields = TypeTuple::fields(2); |
duke@435 | 1016 | fields[TypeFunc::Parms+0] = TypeRawPtr::BOTTOM; // Thread-local storage |
duke@435 | 1017 | fields[TypeFunc::Parms+1] = TypeInstPtr::NOTNULL; // oop; newly allocated object |
duke@435 | 1018 | |
duke@435 | 1019 | const TypeTuple *domain = TypeTuple::make(TypeFunc::Parms+2,fields); |
duke@435 | 1020 | |
duke@435 | 1021 | // create result type (range) |
duke@435 | 1022 | fields = TypeTuple::fields(0); |
duke@435 | 1023 | |
duke@435 | 1024 | const TypeTuple *range = TypeTuple::make(TypeFunc::Parms+0,fields); |
duke@435 | 1025 | |
duke@435 | 1026 | return TypeFunc::make(domain,range); |
duke@435 | 1027 | } |
duke@435 | 1028 | |
duke@435 | 1029 | |
duke@435 | 1030 | JRT_ENTRY_NO_ASYNC(void, OptoRuntime::register_finalizer(oopDesc* obj, JavaThread* thread)) |
duke@435 | 1031 | assert(obj->is_oop(), "must be a valid oop"); |
duke@435 | 1032 | assert(obj->klass()->klass_part()->has_finalizer(), "shouldn't be here otherwise"); |
duke@435 | 1033 | instanceKlass::register_finalizer(instanceOop(obj), CHECK); |
duke@435 | 1034 | JRT_END |
duke@435 | 1035 | |
duke@435 | 1036 | //----------------------------------------------------------------------------- |
duke@435 | 1037 | |
duke@435 | 1038 | NamedCounter * volatile OptoRuntime::_named_counters = NULL; |
duke@435 | 1039 | |
duke@435 | 1040 | // |
duke@435 | 1041 | // dump the collected NamedCounters. |
duke@435 | 1042 | // |
duke@435 | 1043 | void OptoRuntime::print_named_counters() { |
duke@435 | 1044 | int total_lock_count = 0; |
duke@435 | 1045 | int eliminated_lock_count = 0; |
duke@435 | 1046 | |
duke@435 | 1047 | NamedCounter* c = _named_counters; |
duke@435 | 1048 | while (c) { |
duke@435 | 1049 | if (c->tag() == NamedCounter::LockCounter || c->tag() == NamedCounter::EliminatedLockCounter) { |
duke@435 | 1050 | int count = c->count(); |
duke@435 | 1051 | if (count > 0) { |
duke@435 | 1052 | bool eliminated = c->tag() == NamedCounter::EliminatedLockCounter; |
duke@435 | 1053 | if (Verbose) { |
duke@435 | 1054 | tty->print_cr("%d %s%s", count, c->name(), eliminated ? " (eliminated)" : ""); |
duke@435 | 1055 | } |
duke@435 | 1056 | total_lock_count += count; |
duke@435 | 1057 | if (eliminated) { |
duke@435 | 1058 | eliminated_lock_count += count; |
duke@435 | 1059 | } |
duke@435 | 1060 | } |
duke@435 | 1061 | } else if (c->tag() == NamedCounter::BiasedLockingCounter) { |
duke@435 | 1062 | BiasedLockingCounters* blc = ((BiasedLockingNamedCounter*)c)->counters(); |
duke@435 | 1063 | if (blc->nonzero()) { |
duke@435 | 1064 | tty->print_cr("%s", c->name()); |
duke@435 | 1065 | blc->print_on(tty); |
duke@435 | 1066 | } |
duke@435 | 1067 | } |
duke@435 | 1068 | c = c->next(); |
duke@435 | 1069 | } |
duke@435 | 1070 | if (total_lock_count > 0) { |
duke@435 | 1071 | tty->print_cr("dynamic locks: %d", total_lock_count); |
duke@435 | 1072 | if (eliminated_lock_count) { |
duke@435 | 1073 | tty->print_cr("eliminated locks: %d (%d%%)", eliminated_lock_count, |
duke@435 | 1074 | (int)(eliminated_lock_count * 100.0 / total_lock_count)); |
duke@435 | 1075 | } |
duke@435 | 1076 | } |
duke@435 | 1077 | } |
duke@435 | 1078 | |
duke@435 | 1079 | // |
duke@435 | 1080 | // Allocate a new NamedCounter. The JVMState is used to generate the |
duke@435 | 1081 | // name which consists of method@line for the inlining tree. |
duke@435 | 1082 | // |
duke@435 | 1083 | |
duke@435 | 1084 | NamedCounter* OptoRuntime::new_named_counter(JVMState* youngest_jvms, NamedCounter::CounterTag tag) { |
duke@435 | 1085 | int max_depth = youngest_jvms->depth(); |
duke@435 | 1086 | |
duke@435 | 1087 | // Visit scopes from youngest to oldest. |
duke@435 | 1088 | bool first = true; |
duke@435 | 1089 | stringStream st; |
duke@435 | 1090 | for (int depth = max_depth; depth >= 1; depth--) { |
duke@435 | 1091 | JVMState* jvms = youngest_jvms->of_depth(depth); |
duke@435 | 1092 | ciMethod* m = jvms->has_method() ? jvms->method() : NULL; |
duke@435 | 1093 | if (!first) { |
duke@435 | 1094 | st.print(" "); |
duke@435 | 1095 | } else { |
duke@435 | 1096 | first = false; |
duke@435 | 1097 | } |
duke@435 | 1098 | int bci = jvms->bci(); |
duke@435 | 1099 | if (bci < 0) bci = 0; |
duke@435 | 1100 | st.print("%s.%s@%d", m->holder()->name()->as_utf8(), m->name()->as_utf8(), bci); |
duke@435 | 1101 | // To print linenumbers instead of bci use: m->line_number_from_bci(bci) |
duke@435 | 1102 | } |
duke@435 | 1103 | NamedCounter* c; |
duke@435 | 1104 | if (tag == NamedCounter::BiasedLockingCounter) { |
duke@435 | 1105 | c = new BiasedLockingNamedCounter(strdup(st.as_string())); |
duke@435 | 1106 | } else { |
duke@435 | 1107 | c = new NamedCounter(strdup(st.as_string()), tag); |
duke@435 | 1108 | } |
duke@435 | 1109 | |
duke@435 | 1110 | // atomically add the new counter to the head of the list. We only |
duke@435 | 1111 | // add counters so this is safe. |
duke@435 | 1112 | NamedCounter* head; |
duke@435 | 1113 | do { |
duke@435 | 1114 | head = _named_counters; |
duke@435 | 1115 | c->set_next(head); |
duke@435 | 1116 | } while (Atomic::cmpxchg_ptr(c, &_named_counters, head) != head); |
duke@435 | 1117 | return c; |
duke@435 | 1118 | } |
duke@435 | 1119 | |
duke@435 | 1120 | //----------------------------------------------------------------------------- |
duke@435 | 1121 | // Non-product code |
duke@435 | 1122 | #ifndef PRODUCT |
duke@435 | 1123 | |
duke@435 | 1124 | int trace_exception_counter = 0; |
duke@435 | 1125 | static void trace_exception(oop exception_oop, address exception_pc, const char* msg) { |
duke@435 | 1126 | ttyLocker ttyl; |
duke@435 | 1127 | trace_exception_counter++; |
duke@435 | 1128 | tty->print("%d [Exception (%s): ", trace_exception_counter, msg); |
duke@435 | 1129 | exception_oop->print_value(); |
duke@435 | 1130 | tty->print(" in "); |
duke@435 | 1131 | CodeBlob* blob = CodeCache::find_blob(exception_pc); |
duke@435 | 1132 | if (blob->is_nmethod()) { |
duke@435 | 1133 | ((nmethod*)blob)->method()->print_value(); |
duke@435 | 1134 | } else if (blob->is_runtime_stub()) { |
duke@435 | 1135 | tty->print("<runtime-stub>"); |
duke@435 | 1136 | } else { |
duke@435 | 1137 | tty->print("<unknown>"); |
duke@435 | 1138 | } |
duke@435 | 1139 | tty->print(" at " INTPTR_FORMAT, exception_pc); |
duke@435 | 1140 | tty->print_cr("]"); |
duke@435 | 1141 | } |
duke@435 | 1142 | |
duke@435 | 1143 | #endif // PRODUCT |
duke@435 | 1144 | |
duke@435 | 1145 | |
duke@435 | 1146 | # ifdef ENABLE_ZAP_DEAD_LOCALS |
duke@435 | 1147 | // Called from call sites in compiled code with oop maps (actually safepoints) |
duke@435 | 1148 | // Zaps dead locals in first java frame. |
duke@435 | 1149 | // Is entry because may need to lock to generate oop maps |
duke@435 | 1150 | // Currently, only used for compiler frames, but someday may be used |
duke@435 | 1151 | // for interpreter frames, too. |
duke@435 | 1152 | |
duke@435 | 1153 | int OptoRuntime::ZapDeadCompiledLocals_count = 0; |
duke@435 | 1154 | |
duke@435 | 1155 | // avoid pointers to member funcs with these helpers |
duke@435 | 1156 | static bool is_java_frame( frame* f) { return f->is_java_frame(); } |
duke@435 | 1157 | static bool is_native_frame(frame* f) { return f->is_native_frame(); } |
duke@435 | 1158 | |
duke@435 | 1159 | |
duke@435 | 1160 | void OptoRuntime::zap_dead_java_or_native_locals(JavaThread* thread, |
duke@435 | 1161 | bool (*is_this_the_right_frame_to_zap)(frame*)) { |
duke@435 | 1162 | assert(JavaThread::current() == thread, "is this needed?"); |
duke@435 | 1163 | |
duke@435 | 1164 | if ( !ZapDeadCompiledLocals ) return; |
duke@435 | 1165 | |
duke@435 | 1166 | bool skip = false; |
duke@435 | 1167 | |
duke@435 | 1168 | if ( ZapDeadCompiledLocalsFirst == 0 ) ; // nothing special |
duke@435 | 1169 | else if ( ZapDeadCompiledLocalsFirst > ZapDeadCompiledLocals_count ) skip = true; |
duke@435 | 1170 | else if ( ZapDeadCompiledLocalsFirst == ZapDeadCompiledLocals_count ) |
duke@435 | 1171 | warning("starting zapping after skipping"); |
duke@435 | 1172 | |
duke@435 | 1173 | if ( ZapDeadCompiledLocalsLast == -1 ) ; // nothing special |
duke@435 | 1174 | else if ( ZapDeadCompiledLocalsLast < ZapDeadCompiledLocals_count ) skip = true; |
duke@435 | 1175 | else if ( ZapDeadCompiledLocalsLast == ZapDeadCompiledLocals_count ) |
duke@435 | 1176 | warning("about to zap last zap"); |
duke@435 | 1177 | |
duke@435 | 1178 | ++ZapDeadCompiledLocals_count; // counts skipped zaps, too |
duke@435 | 1179 | |
duke@435 | 1180 | if ( skip ) return; |
duke@435 | 1181 | |
duke@435 | 1182 | // find java frame and zap it |
duke@435 | 1183 | |
duke@435 | 1184 | for (StackFrameStream sfs(thread); !sfs.is_done(); sfs.next()) { |
duke@435 | 1185 | if (is_this_the_right_frame_to_zap(sfs.current()) ) { |
duke@435 | 1186 | sfs.current()->zap_dead_locals(thread, sfs.register_map()); |
duke@435 | 1187 | return; |
duke@435 | 1188 | } |
duke@435 | 1189 | } |
duke@435 | 1190 | warning("no frame found to zap in zap_dead_Java_locals_C"); |
duke@435 | 1191 | } |
duke@435 | 1192 | |
duke@435 | 1193 | JRT_LEAF(void, OptoRuntime::zap_dead_Java_locals_C(JavaThread* thread)) |
duke@435 | 1194 | zap_dead_java_or_native_locals(thread, is_java_frame); |
duke@435 | 1195 | JRT_END |
duke@435 | 1196 | |
duke@435 | 1197 | // The following does not work because for one thing, the |
duke@435 | 1198 | // thread state is wrong; it expects java, but it is native. |
twisti@1040 | 1199 | // Also, the invariants in a native stub are different and |
duke@435 | 1200 | // I'm not sure it is safe to have a MachCalRuntimeDirectNode |
duke@435 | 1201 | // in there. |
duke@435 | 1202 | // So for now, we do not zap in native stubs. |
duke@435 | 1203 | |
duke@435 | 1204 | JRT_LEAF(void, OptoRuntime::zap_dead_native_locals_C(JavaThread* thread)) |
duke@435 | 1205 | zap_dead_java_or_native_locals(thread, is_native_frame); |
duke@435 | 1206 | JRT_END |
duke@435 | 1207 | |
duke@435 | 1208 | # endif |