Mercurial > hg > truffle
annotate src/share/vm/code/nmethod.cpp @ 2142:8012aa3ccede
4926272: methodOopDesc::method_from_bcp is unsafe
Reviewed-by: coleenp, jrose, kvn, dcubed
| author | never |
|---|---|
| date | Thu, 13 Jan 2011 22:15:41 -0800 |
| parents | 5a1e52a439fa |
| children | 3582bf76420e |
| rev | line source |
|---|---|
| 0 | 1 /* |
| 2142 | 2 * Copyright (c) 1997, 2011, Oracle and/or its affiliates. All rights reserved. |
| 0 | 3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. |
| 4 * | |
| 5 * This code is free software; you can redistribute it and/or modify it | |
| 6 * under the terms of the GNU General Public License version 2 only, as | |
| 7 * published by the Free Software Foundation. | |
| 8 * | |
| 9 * This code is distributed in the hope that it will be useful, but WITHOUT | |
| 10 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or | |
| 11 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License | |
| 12 * version 2 for more details (a copy is included in the LICENSE file that | |
| 13 * accompanied this code). | |
| 14 * | |
| 15 * You should have received a copy of the GNU General Public License version | |
| 16 * 2 along with this work; if not, write to the Free Software Foundation, | |
| 17 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. | |
| 18 * | |
|
1552
c18cbe5936b8
6941466: Oracle rebranding changes for Hotspot repositories
trims
parents:
1538
diff
changeset
|
19 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA |
|
c18cbe5936b8
6941466: Oracle rebranding changes for Hotspot repositories
trims
parents:
1538
diff
changeset
|
20 * or visit www.oracle.com if you need additional information or have any |
|
c18cbe5936b8
6941466: Oracle rebranding changes for Hotspot repositories
trims
parents:
1538
diff
changeset
|
21 * questions. |
| 0 | 22 * |
| 23 */ | |
| 24 | |
| 1972 | 25 #include "precompiled.hpp" |
| 26 #include "code/codeCache.hpp" | |
| 27 #include "code/compiledIC.hpp" | |
| 28 #include "code/nmethod.hpp" | |
| 29 #include "code/scopeDesc.hpp" | |
| 30 #include "compiler/abstractCompiler.hpp" | |
| 31 #include "compiler/compileLog.hpp" | |
| 32 #include "compiler/compilerOracle.hpp" | |
| 33 #include "compiler/disassembler.hpp" | |
| 34 #include "interpreter/bytecode.hpp" | |
| 35 #include "oops/methodDataOop.hpp" | |
| 36 #include "prims/jvmtiRedefineClassesTrace.hpp" | |
| 37 #include "runtime/sharedRuntime.hpp" | |
| 38 #include "runtime/sweeper.hpp" | |
| 39 #include "utilities/dtrace.hpp" | |
| 40 #include "utilities/events.hpp" | |
| 41 #include "utilities/xmlstream.hpp" | |
| 42 #ifdef SHARK | |
| 43 #include "shark/sharkCompiler.hpp" | |
| 44 #endif | |
| 0 | 45 |
| 46 #ifdef DTRACE_ENABLED | |
| 47 | |
| 48 // Only bother with this argument setup if dtrace is available | |
| 49 | |
| 50 HS_DTRACE_PROBE_DECL8(hotspot, compiled__method__load, | |
| 51 const char*, int, const char*, int, const char*, int, void*, size_t); | |
| 52 | |
| 53 HS_DTRACE_PROBE_DECL6(hotspot, compiled__method__unload, | |
| 54 char*, int, char*, int, char*, int); | |
| 55 | |
| 56 #define DTRACE_METHOD_UNLOAD_PROBE(method) \ | |
| 57 { \ | |
| 58 methodOop m = (method); \ | |
| 59 if (m != NULL) { \ | |
| 60 symbolOop klass_name = m->klass_name(); \ | |
| 61 symbolOop name = m->name(); \ | |
| 62 symbolOop signature = m->signature(); \ | |
| 63 HS_DTRACE_PROBE6(hotspot, compiled__method__unload, \ | |
| 64 klass_name->bytes(), klass_name->utf8_length(), \ | |
| 65 name->bytes(), name->utf8_length(), \ | |
| 66 signature->bytes(), signature->utf8_length()); \ | |
| 67 } \ | |
| 68 } | |
| 69 | |
| 70 #else // ndef DTRACE_ENABLED | |
| 71 | |
| 72 #define DTRACE_METHOD_UNLOAD_PROBE(method) | |
| 73 | |
| 74 #endif | |
| 75 | |
| 76 bool nmethod::is_compiled_by_c1() const { | |
|
1155
4e6abf09f540
6912062: disassembler plugin needs to produce symbolic information in product mode
jrose
parents:
1141
diff
changeset
|
77 if (compiler() == NULL || method() == NULL) return false; // can happen during debug printing |
| 0 | 78 if (is_native_method()) return false; |
| 79 return compiler()->is_c1(); | |
| 80 } | |
| 81 bool nmethod::is_compiled_by_c2() const { | |
|
1155
4e6abf09f540
6912062: disassembler plugin needs to produce symbolic information in product mode
jrose
parents:
1141
diff
changeset
|
82 if (compiler() == NULL || method() == NULL) return false; // can happen during debug printing |
| 0 | 83 if (is_native_method()) return false; |
| 84 return compiler()->is_c2(); | |
| 85 } | |
| 1692 | 86 bool nmethod::is_compiled_by_shark() const { |
| 87 if (is_native_method()) return false; | |
| 88 assert(compiler() != NULL, "must be"); | |
| 89 return compiler()->is_shark(); | |
| 90 } | |
| 0 | 91 |
| 92 | |
| 93 | |
| 94 //--------------------------------------------------------------------------------- | |
| 95 // NMethod statistics | |
| 96 // They are printed under various flags, including: | |
| 97 // PrintC1Statistics, PrintOptoStatistics, LogVMOutput, and LogCompilation. | |
| 98 // (In the latter two cases, they like other stats are printed to the log only.) | |
| 99 | |
| 100 #ifndef PRODUCT | |
| 101 // These variables are put into one block to reduce relocations | |
| 102 // and make it simpler to print from the debugger. | |
| 103 static | |
| 104 struct nmethod_stats_struct { | |
| 105 int nmethod_count; | |
| 106 int total_size; | |
| 107 int relocation_size; | |
|
1762
0878d7bae69f
6961697: move nmethod constants section before instruction section
twisti
parents:
1748
diff
changeset
|
108 int consts_size; |
| 1748 | 109 int insts_size; |
| 0 | 110 int stub_size; |
| 111 int scopes_data_size; | |
| 112 int scopes_pcs_size; | |
| 113 int dependencies_size; | |
| 114 int handler_table_size; | |
| 115 int nul_chk_table_size; | |
| 116 int oops_size; | |
| 117 | |
| 118 void note_nmethod(nmethod* nm) { | |
| 119 nmethod_count += 1; | |
| 120 total_size += nm->size(); | |
| 121 relocation_size += nm->relocation_size(); | |
|
1762
0878d7bae69f
6961697: move nmethod constants section before instruction section
twisti
parents:
1748
diff
changeset
|
122 consts_size += nm->consts_size(); |
| 1748 | 123 insts_size += nm->insts_size(); |
| 0 | 124 stub_size += nm->stub_size(); |
|
1563
1a5913bf5e19
6951083: oops and relocations should part of nmethod not CodeBlob
twisti
parents:
1538
diff
changeset
|
125 oops_size += nm->oops_size(); |
| 0 | 126 scopes_data_size += nm->scopes_data_size(); |
| 127 scopes_pcs_size += nm->scopes_pcs_size(); | |
| 128 dependencies_size += nm->dependencies_size(); | |
| 129 handler_table_size += nm->handler_table_size(); | |
| 130 nul_chk_table_size += nm->nul_chk_table_size(); | |
| 131 } | |
| 132 void print_nmethod_stats() { | |
| 133 if (nmethod_count == 0) return; | |
| 134 tty->print_cr("Statistics for %d bytecoded nmethods:", nmethod_count); | |
| 135 if (total_size != 0) tty->print_cr(" total in heap = %d", total_size); | |
| 136 if (relocation_size != 0) tty->print_cr(" relocation = %d", relocation_size); | |
|
1762
0878d7bae69f
6961697: move nmethod constants section before instruction section
twisti
parents:
1748
diff
changeset
|
137 if (consts_size != 0) tty->print_cr(" constants = %d", consts_size); |
| 1748 | 138 if (insts_size != 0) tty->print_cr(" main code = %d", insts_size); |
| 0 | 139 if (stub_size != 0) tty->print_cr(" stub code = %d", stub_size); |
|
1563
1a5913bf5e19
6951083: oops and relocations should part of nmethod not CodeBlob
twisti
parents:
1538
diff
changeset
|
140 if (oops_size != 0) tty->print_cr(" oops = %d", oops_size); |
| 0 | 141 if (scopes_data_size != 0) tty->print_cr(" scopes data = %d", scopes_data_size); |
| 142 if (scopes_pcs_size != 0) tty->print_cr(" scopes pcs = %d", scopes_pcs_size); | |
| 143 if (dependencies_size != 0) tty->print_cr(" dependencies = %d", dependencies_size); | |
| 144 if (handler_table_size != 0) tty->print_cr(" handler table = %d", handler_table_size); | |
| 145 if (nul_chk_table_size != 0) tty->print_cr(" nul chk table = %d", nul_chk_table_size); | |
| 146 } | |
| 147 | |
| 148 int native_nmethod_count; | |
| 149 int native_total_size; | |
| 150 int native_relocation_size; | |
| 1748 | 151 int native_insts_size; |
| 0 | 152 int native_oops_size; |
| 153 void note_native_nmethod(nmethod* nm) { | |
| 154 native_nmethod_count += 1; | |
| 155 native_total_size += nm->size(); | |
| 156 native_relocation_size += nm->relocation_size(); | |
| 1748 | 157 native_insts_size += nm->insts_size(); |
| 0 | 158 native_oops_size += nm->oops_size(); |
| 159 } | |
| 160 void print_native_nmethod_stats() { | |
| 161 if (native_nmethod_count == 0) return; | |
| 162 tty->print_cr("Statistics for %d native nmethods:", native_nmethod_count); | |
| 163 if (native_total_size != 0) tty->print_cr(" N. total size = %d", native_total_size); | |
| 164 if (native_relocation_size != 0) tty->print_cr(" N. relocation = %d", native_relocation_size); | |
| 1748 | 165 if (native_insts_size != 0) tty->print_cr(" N. main code = %d", native_insts_size); |
| 0 | 166 if (native_oops_size != 0) tty->print_cr(" N. oops = %d", native_oops_size); |
| 167 } | |
| 168 | |
| 169 int pc_desc_resets; // number of resets (= number of caches) | |
| 170 int pc_desc_queries; // queries to nmethod::find_pc_desc | |
| 171 int pc_desc_approx; // number of those which have approximate true | |
| 172 int pc_desc_repeats; // number of _last_pc_desc hits | |
| 173 int pc_desc_hits; // number of LRU cache hits | |
| 174 int pc_desc_tests; // total number of PcDesc examinations | |
| 175 int pc_desc_searches; // total number of quasi-binary search steps | |
| 176 int pc_desc_adds; // number of LUR cache insertions | |
| 177 | |
| 178 void print_pc_stats() { | |
| 179 tty->print_cr("PcDesc Statistics: %d queries, %.2f comparisons per query", | |
| 180 pc_desc_queries, | |
| 181 (double)(pc_desc_tests + pc_desc_searches) | |
| 182 / pc_desc_queries); | |
| 183 tty->print_cr(" caches=%d queries=%d/%d, hits=%d+%d, tests=%d+%d, adds=%d", | |
| 184 pc_desc_resets, | |
| 185 pc_desc_queries, pc_desc_approx, | |
| 186 pc_desc_repeats, pc_desc_hits, | |
| 187 pc_desc_tests, pc_desc_searches, pc_desc_adds); | |
| 188 } | |
| 189 } nmethod_stats; | |
| 190 #endif //PRODUCT | |
| 191 | |
| 192 //--------------------------------------------------------------------------------- | |
| 193 | |
| 194 | |
| 195 // The _unwind_handler is a special marker address, which says that | |
| 196 // for given exception oop and address, the frame should be removed | |
| 197 // as the tuple cannot be caught in the nmethod | |
| 198 address ExceptionCache::_unwind_handler = (address) -1; | |
| 199 | |
| 200 | |
| 201 ExceptionCache::ExceptionCache(Handle exception, address pc, address handler) { | |
| 202 assert(pc != NULL, "Must be non null"); | |
| 203 assert(exception.not_null(), "Must be non null"); | |
| 204 assert(handler != NULL, "Must be non null"); | |
| 205 | |
| 206 _count = 0; | |
| 207 _exception_type = exception->klass(); | |
| 208 _next = NULL; | |
| 209 | |
| 210 add_address_and_handler(pc,handler); | |
| 211 } | |
| 212 | |
| 213 | |
| 214 address ExceptionCache::match(Handle exception, address pc) { | |
| 215 assert(pc != NULL,"Must be non null"); | |
| 216 assert(exception.not_null(),"Must be non null"); | |
| 217 if (exception->klass() == exception_type()) { | |
| 218 return (test_address(pc)); | |
| 219 } | |
| 220 | |
| 221 return NULL; | |
| 222 } | |
| 223 | |
| 224 | |
| 225 bool ExceptionCache::match_exception_with_space(Handle exception) { | |
| 226 assert(exception.not_null(),"Must be non null"); | |
| 227 if (exception->klass() == exception_type() && count() < cache_size) { | |
| 228 return true; | |
| 229 } | |
| 230 return false; | |
| 231 } | |
| 232 | |
| 233 | |
| 234 address ExceptionCache::test_address(address addr) { | |
| 235 for (int i=0; i<count(); i++) { | |
| 236 if (pc_at(i) == addr) { | |
| 237 return handler_at(i); | |
| 238 } | |
| 239 } | |
| 240 return NULL; | |
| 241 } | |
| 242 | |
| 243 | |
| 244 bool ExceptionCache::add_address_and_handler(address addr, address handler) { | |
| 245 if (test_address(addr) == handler) return true; | |
| 246 if (count() < cache_size) { | |
| 247 set_pc_at(count(),addr); | |
| 248 set_handler_at(count(), handler); | |
| 249 increment_count(); | |
| 250 return true; | |
| 251 } | |
| 252 return false; | |
| 253 } | |
| 254 | |
| 255 | |
| 256 // private method for handling exception cache | |
| 257 // These methods are private, and used to manipulate the exception cache | |
| 258 // directly. | |
| 259 ExceptionCache* nmethod::exception_cache_entry_for_exception(Handle exception) { | |
| 260 ExceptionCache* ec = exception_cache(); | |
| 261 while (ec != NULL) { | |
| 262 if (ec->match_exception_with_space(exception)) { | |
| 263 return ec; | |
| 264 } | |
| 265 ec = ec->next(); | |
| 266 } | |
| 267 return NULL; | |
| 268 } | |
| 269 | |
| 270 | |
| 271 //----------------------------------------------------------------------------- | |
| 272 | |
| 273 | |
| 274 // Helper used by both find_pc_desc methods. | |
| 275 static inline bool match_desc(PcDesc* pc, int pc_offset, bool approximate) { | |
| 276 NOT_PRODUCT(++nmethod_stats.pc_desc_tests); | |
| 277 if (!approximate) | |
| 278 return pc->pc_offset() == pc_offset; | |
| 279 else | |
| 280 return (pc-1)->pc_offset() < pc_offset && pc_offset <= pc->pc_offset(); | |
| 281 } | |
| 282 | |
| 283 void PcDescCache::reset_to(PcDesc* initial_pc_desc) { | |
| 284 if (initial_pc_desc == NULL) { | |
| 285 _last_pc_desc = NULL; // native method | |
| 286 return; | |
| 287 } | |
| 288 NOT_PRODUCT(++nmethod_stats.pc_desc_resets); | |
| 289 // reset the cache by filling it with benign (non-null) values | |
| 290 assert(initial_pc_desc->pc_offset() < 0, "must be sentinel"); | |
| 291 _last_pc_desc = initial_pc_desc + 1; // first valid one is after sentinel | |
| 292 for (int i = 0; i < cache_size; i++) | |
| 293 _pc_descs[i] = initial_pc_desc; | |
| 294 } | |
| 295 | |
| 296 PcDesc* PcDescCache::find_pc_desc(int pc_offset, bool approximate) { | |
| 297 NOT_PRODUCT(++nmethod_stats.pc_desc_queries); | |
| 298 NOT_PRODUCT(if (approximate) ++nmethod_stats.pc_desc_approx); | |
| 299 | |
| 300 // In order to prevent race conditions do not load cache elements | |
| 301 // repeatedly, but use a local copy: | |
| 302 PcDesc* res; | |
| 303 | |
| 304 // Step one: Check the most recently returned value. | |
| 305 res = _last_pc_desc; | |
| 306 if (res == NULL) return NULL; // native method; no PcDescs at all | |
| 307 if (match_desc(res, pc_offset, approximate)) { | |
| 308 NOT_PRODUCT(++nmethod_stats.pc_desc_repeats); | |
| 309 return res; | |
| 310 } | |
| 311 | |
| 312 // Step two: Check the LRU cache. | |
| 313 for (int i = 0; i < cache_size; i++) { | |
| 314 res = _pc_descs[i]; | |
| 315 if (res->pc_offset() < 0) break; // optimization: skip empty cache | |
| 316 if (match_desc(res, pc_offset, approximate)) { | |
| 317 NOT_PRODUCT(++nmethod_stats.pc_desc_hits); | |
| 318 _last_pc_desc = res; // record this cache hit in case of repeat | |
| 319 return res; | |
| 320 } | |
| 321 } | |
| 322 | |
| 323 // Report failure. | |
| 324 return NULL; | |
| 325 } | |
| 326 | |
| 327 void PcDescCache::add_pc_desc(PcDesc* pc_desc) { | |
| 328 NOT_PRODUCT(++nmethod_stats.pc_desc_adds); | |
| 329 // Update the LRU cache by shifting pc_desc forward: | |
| 330 for (int i = 0; i < cache_size; i++) { | |
| 331 PcDesc* next = _pc_descs[i]; | |
| 332 _pc_descs[i] = pc_desc; | |
| 333 pc_desc = next; | |
| 334 } | |
| 335 // Note: Do not update _last_pc_desc. It fronts for the LRU cache. | |
| 336 } | |
| 337 | |
| 338 // adjust pcs_size so that it is a multiple of both oopSize and | |
| 339 // sizeof(PcDesc) (assumes that if sizeof(PcDesc) is not a multiple | |
| 340 // of oopSize, then 2*sizeof(PcDesc) is) | |
| 341 static int adjust_pcs_size(int pcs_size) { | |
| 342 int nsize = round_to(pcs_size, oopSize); | |
| 343 if ((nsize % sizeof(PcDesc)) != 0) { | |
| 344 nsize = pcs_size + sizeof(PcDesc); | |
| 345 } | |
| 346 assert((nsize % oopSize) == 0, "correct alignment"); | |
| 347 return nsize; | |
| 348 } | |
| 349 | |
| 350 //----------------------------------------------------------------------------- | |
| 351 | |
| 352 | |
| 353 void nmethod::add_exception_cache_entry(ExceptionCache* new_entry) { | |
| 354 assert(ExceptionCache_lock->owned_by_self(),"Must hold the ExceptionCache_lock"); | |
| 355 assert(new_entry != NULL,"Must be non null"); | |
| 356 assert(new_entry->next() == NULL, "Must be null"); | |
| 357 | |
| 358 if (exception_cache() != NULL) { | |
| 359 new_entry->set_next(exception_cache()); | |
| 360 } | |
| 361 set_exception_cache(new_entry); | |
| 362 } | |
| 363 | |
| 364 void nmethod::remove_from_exception_cache(ExceptionCache* ec) { | |
| 365 ExceptionCache* prev = NULL; | |
| 366 ExceptionCache* curr = exception_cache(); | |
| 367 assert(curr != NULL, "nothing to remove"); | |
| 368 // find the previous and next entry of ec | |
| 369 while (curr != ec) { | |
| 370 prev = curr; | |
| 371 curr = curr->next(); | |
| 372 assert(curr != NULL, "ExceptionCache not found"); | |
| 373 } | |
| 374 // now: curr == ec | |
| 375 ExceptionCache* next = curr->next(); | |
| 376 if (prev == NULL) { | |
| 377 set_exception_cache(next); | |
| 378 } else { | |
| 379 prev->set_next(next); | |
| 380 } | |
| 381 delete curr; | |
| 382 } | |
| 383 | |
| 384 | |
| 385 // public method for accessing the exception cache | |
| 386 // These are the public access methods. | |
| 387 address nmethod::handler_for_exception_and_pc(Handle exception, address pc) { | |
| 388 // We never grab a lock to read the exception cache, so we may | |
| 389 // have false negatives. This is okay, as it can only happen during | |
| 390 // the first few exception lookups for a given nmethod. | |
| 391 ExceptionCache* ec = exception_cache(); | |
| 392 while (ec != NULL) { | |
| 393 address ret_val; | |
| 394 if ((ret_val = ec->match(exception,pc)) != NULL) { | |
| 395 return ret_val; | |
| 396 } | |
| 397 ec = ec->next(); | |
| 398 } | |
| 399 return NULL; | |
| 400 } | |
| 401 | |
| 402 | |
| 403 void nmethod::add_handler_for_exception_and_pc(Handle exception, address pc, address handler) { | |
| 404 // There are potential race conditions during exception cache updates, so we | |
| 405 // must own the ExceptionCache_lock before doing ANY modifications. Because | |
| 605 | 406 // we don't lock during reads, it is possible to have several threads attempt |
| 0 | 407 // to update the cache with the same data. We need to check for already inserted |
| 408 // copies of the current data before adding it. | |
| 409 | |
| 410 MutexLocker ml(ExceptionCache_lock); | |
| 411 ExceptionCache* target_entry = exception_cache_entry_for_exception(exception); | |
| 412 | |
| 413 if (target_entry == NULL || !target_entry->add_address_and_handler(pc,handler)) { | |
| 414 target_entry = new ExceptionCache(exception,pc,handler); | |
| 415 add_exception_cache_entry(target_entry); | |
| 416 } | |
| 417 } | |
| 418 | |
| 419 | |
| 420 //-------------end of code for ExceptionCache-------------- | |
| 421 | |
| 422 | |
| 423 int nmethod::total_size() const { | |
| 424 return | |
|
1762
0878d7bae69f
6961697: move nmethod constants section before instruction section
twisti
parents:
1748
diff
changeset
|
425 consts_size() + |
| 1748 | 426 insts_size() + |
| 0 | 427 stub_size() + |
| 428 scopes_data_size() + | |
| 429 scopes_pcs_size() + | |
| 430 handler_table_size() + | |
| 431 nul_chk_table_size(); | |
| 432 } | |
| 433 | |
| 434 const char* nmethod::compile_kind() const { | |
| 435 if (is_osr_method()) return "osr"; | |
|
1109
032260830071
5057818: codecache full and compiler disabled in bigapps fastdebug run
never
parents:
994
diff
changeset
|
436 if (method() != NULL && is_native_method()) return "c2n"; |
| 0 | 437 return NULL; |
| 438 } | |
| 439 | |
|
1644
2a47bd84841f
6965184: possible races in make_not_entrant_or_zombie
never
parents:
1616
diff
changeset
|
440 // Fill in default values for various flag fields |
|
2a47bd84841f
6965184: possible races in make_not_entrant_or_zombie
never
parents:
1616
diff
changeset
|
441 void nmethod::init_defaults() { |
|
2a47bd84841f
6965184: possible races in make_not_entrant_or_zombie
never
parents:
1616
diff
changeset
|
442 _state = alive; |
|
2a47bd84841f
6965184: possible races in make_not_entrant_or_zombie
never
parents:
1616
diff
changeset
|
443 _marked_for_reclamation = 0; |
|
2a47bd84841f
6965184: possible races in make_not_entrant_or_zombie
never
parents:
1616
diff
changeset
|
444 _has_flushed_dependencies = 0; |
|
2a47bd84841f
6965184: possible races in make_not_entrant_or_zombie
never
parents:
1616
diff
changeset
|
445 _speculatively_disconnected = 0; |
|
2a47bd84841f
6965184: possible races in make_not_entrant_or_zombie
never
parents:
1616
diff
changeset
|
446 _has_unsafe_access = 0; |
|
2a47bd84841f
6965184: possible races in make_not_entrant_or_zombie
never
parents:
1616
diff
changeset
|
447 _has_method_handle_invokes = 0; |
|
2a47bd84841f
6965184: possible races in make_not_entrant_or_zombie
never
parents:
1616
diff
changeset
|
448 _marked_for_deoptimization = 0; |
|
2a47bd84841f
6965184: possible races in make_not_entrant_or_zombie
never
parents:
1616
diff
changeset
|
449 _lock_count = 0; |
|
2a47bd84841f
6965184: possible races in make_not_entrant_or_zombie
never
parents:
1616
diff
changeset
|
450 _stack_traversal_mark = 0; |
|
2a47bd84841f
6965184: possible races in make_not_entrant_or_zombie
never
parents:
1616
diff
changeset
|
451 _unload_reported = false; // jvmti state |
|
2a47bd84841f
6965184: possible races in make_not_entrant_or_zombie
never
parents:
1616
diff
changeset
|
452 |
|
2a47bd84841f
6965184: possible races in make_not_entrant_or_zombie
never
parents:
1616
diff
changeset
|
453 NOT_PRODUCT(_has_debug_info = false); |
| 1726 | 454 #ifdef ASSERT |
| 455 _oops_are_stale = false; | |
| 456 #endif | |
| 457 | |
|
1644
2a47bd84841f
6965184: possible races in make_not_entrant_or_zombie
never
parents:
1616
diff
changeset
|
458 _oops_do_mark_link = NULL; |
|
2a47bd84841f
6965184: possible races in make_not_entrant_or_zombie
never
parents:
1616
diff
changeset
|
459 _jmethod_id = NULL; |
|
2a47bd84841f
6965184: possible races in make_not_entrant_or_zombie
never
parents:
1616
diff
changeset
|
460 _osr_link = NULL; |
|
2a47bd84841f
6965184: possible races in make_not_entrant_or_zombie
never
parents:
1616
diff
changeset
|
461 _scavenge_root_link = NULL; |
|
2a47bd84841f
6965184: possible races in make_not_entrant_or_zombie
never
parents:
1616
diff
changeset
|
462 _scavenge_root_state = 0; |
|
2a47bd84841f
6965184: possible races in make_not_entrant_or_zombie
never
parents:
1616
diff
changeset
|
463 _saved_nmethod_link = NULL; |
|
2a47bd84841f
6965184: possible races in make_not_entrant_or_zombie
never
parents:
1616
diff
changeset
|
464 _compiler = NULL; |
|
2a47bd84841f
6965184: possible races in make_not_entrant_or_zombie
never
parents:
1616
diff
changeset
|
465 |
|
2a47bd84841f
6965184: possible races in make_not_entrant_or_zombie
never
parents:
1616
diff
changeset
|
466 #ifdef HAVE_DTRACE_H |
|
2a47bd84841f
6965184: possible races in make_not_entrant_or_zombie
never
parents:
1616
diff
changeset
|
467 _trap_offset = 0; |
|
2a47bd84841f
6965184: possible races in make_not_entrant_or_zombie
never
parents:
1616
diff
changeset
|
468 #endif // def HAVE_DTRACE_H |
|
2a47bd84841f
6965184: possible races in make_not_entrant_or_zombie
never
parents:
1616
diff
changeset
|
469 } |
| 0 | 470 |
| 471 | |
| 472 nmethod* nmethod::new_native_nmethod(methodHandle method, | |
| 473 CodeBuffer *code_buffer, | |
| 474 int vep_offset, | |
| 475 int frame_complete, | |
| 476 int frame_size, | |
| 477 ByteSize basic_lock_owner_sp_offset, | |
| 478 ByteSize basic_lock_sp_offset, | |
| 479 OopMapSet* oop_maps) { | |
| 480 // create nmethod | |
| 481 nmethod* nm = NULL; | |
| 482 { | |
| 483 MutexLockerEx mu(CodeCache_lock, Mutex::_no_safepoint_check_flag); | |
| 484 int native_nmethod_size = allocation_size(code_buffer, sizeof(nmethod)); | |
| 485 CodeOffsets offsets; | |
| 486 offsets.set_value(CodeOffsets::Verified_Entry, vep_offset); | |
| 487 offsets.set_value(CodeOffsets::Frame_Complete, frame_complete); | |
| 488 nm = new (native_nmethod_size) | |
| 489 nmethod(method(), native_nmethod_size, &offsets, | |
| 490 code_buffer, frame_size, | |
| 491 basic_lock_owner_sp_offset, basic_lock_sp_offset, | |
| 492 oop_maps); | |
| 493 NOT_PRODUCT(if (nm != NULL) nmethod_stats.note_native_nmethod(nm)); | |
| 494 if (PrintAssembly && nm != NULL) | |
| 495 Disassembler::decode(nm); | |
| 496 } | |
| 497 // verify nmethod | |
| 498 debug_only(if (nm) nm->verify();) // might block | |
| 499 | |
| 500 if (nm != NULL) { | |
| 501 nm->log_new_nmethod(); | |
| 502 } | |
| 503 | |
| 504 return nm; | |
| 505 } | |
| 506 | |
|
116
018d5b58dd4f
6537506: Provide a mechanism for specifying Java-level USDT-like dtrace probes
kamg
parents:
100
diff
changeset
|
507 #ifdef HAVE_DTRACE_H |
|
018d5b58dd4f
6537506: Provide a mechanism for specifying Java-level USDT-like dtrace probes
kamg
parents:
100
diff
changeset
|
508 nmethod* nmethod::new_dtrace_nmethod(methodHandle method, |
|
018d5b58dd4f
6537506: Provide a mechanism for specifying Java-level USDT-like dtrace probes
kamg
parents:
100
diff
changeset
|
509 CodeBuffer *code_buffer, |
|
018d5b58dd4f
6537506: Provide a mechanism for specifying Java-level USDT-like dtrace probes
kamg
parents:
100
diff
changeset
|
510 int vep_offset, |
|
018d5b58dd4f
6537506: Provide a mechanism for specifying Java-level USDT-like dtrace probes
kamg
parents:
100
diff
changeset
|
511 int trap_offset, |
|
018d5b58dd4f
6537506: Provide a mechanism for specifying Java-level USDT-like dtrace probes
kamg
parents:
100
diff
changeset
|
512 int frame_complete, |
|
018d5b58dd4f
6537506: Provide a mechanism for specifying Java-level USDT-like dtrace probes
kamg
parents:
100
diff
changeset
|
513 int frame_size) { |
|
018d5b58dd4f
6537506: Provide a mechanism for specifying Java-level USDT-like dtrace probes
kamg
parents:
100
diff
changeset
|
514 // create nmethod |
|
018d5b58dd4f
6537506: Provide a mechanism for specifying Java-level USDT-like dtrace probes
kamg
parents:
100
diff
changeset
|
515 nmethod* nm = NULL; |
|
018d5b58dd4f
6537506: Provide a mechanism for specifying Java-level USDT-like dtrace probes
kamg
parents:
100
diff
changeset
|
516 { |
|
018d5b58dd4f
6537506: Provide a mechanism for specifying Java-level USDT-like dtrace probes
kamg
parents:
100
diff
changeset
|
517 MutexLockerEx mu(CodeCache_lock, Mutex::_no_safepoint_check_flag); |
|
018d5b58dd4f
6537506: Provide a mechanism for specifying Java-level USDT-like dtrace probes
kamg
parents:
100
diff
changeset
|
518 int nmethod_size = allocation_size(code_buffer, sizeof(nmethod)); |
|
018d5b58dd4f
6537506: Provide a mechanism for specifying Java-level USDT-like dtrace probes
kamg
parents:
100
diff
changeset
|
519 CodeOffsets offsets; |
|
018d5b58dd4f
6537506: Provide a mechanism for specifying Java-level USDT-like dtrace probes
kamg
parents:
100
diff
changeset
|
520 offsets.set_value(CodeOffsets::Verified_Entry, vep_offset); |
|
018d5b58dd4f
6537506: Provide a mechanism for specifying Java-level USDT-like dtrace probes
kamg
parents:
100
diff
changeset
|
521 offsets.set_value(CodeOffsets::Dtrace_trap, trap_offset); |
|
018d5b58dd4f
6537506: Provide a mechanism for specifying Java-level USDT-like dtrace probes
kamg
parents:
100
diff
changeset
|
522 offsets.set_value(CodeOffsets::Frame_Complete, frame_complete); |
|
018d5b58dd4f
6537506: Provide a mechanism for specifying Java-level USDT-like dtrace probes
kamg
parents:
100
diff
changeset
|
523 |
|
018d5b58dd4f
6537506: Provide a mechanism for specifying Java-level USDT-like dtrace probes
kamg
parents:
100
diff
changeset
|
524 nm = new (nmethod_size) nmethod(method(), nmethod_size, &offsets, code_buffer, frame_size); |
|
018d5b58dd4f
6537506: Provide a mechanism for specifying Java-level USDT-like dtrace probes
kamg
parents:
100
diff
changeset
|
525 |
|
018d5b58dd4f
6537506: Provide a mechanism for specifying Java-level USDT-like dtrace probes
kamg
parents:
100
diff
changeset
|
526 NOT_PRODUCT(if (nm != NULL) nmethod_stats.note_nmethod(nm)); |
|
018d5b58dd4f
6537506: Provide a mechanism for specifying Java-level USDT-like dtrace probes
kamg
parents:
100
diff
changeset
|
527 if (PrintAssembly && nm != NULL) |
|
018d5b58dd4f
6537506: Provide a mechanism for specifying Java-level USDT-like dtrace probes
kamg
parents:
100
diff
changeset
|
528 Disassembler::decode(nm); |
|
018d5b58dd4f
6537506: Provide a mechanism for specifying Java-level USDT-like dtrace probes
kamg
parents:
100
diff
changeset
|
529 } |
|
018d5b58dd4f
6537506: Provide a mechanism for specifying Java-level USDT-like dtrace probes
kamg
parents:
100
diff
changeset
|
530 // verify nmethod |
|
018d5b58dd4f
6537506: Provide a mechanism for specifying Java-level USDT-like dtrace probes
kamg
parents:
100
diff
changeset
|
531 debug_only(if (nm) nm->verify();) // might block |
|
018d5b58dd4f
6537506: Provide a mechanism for specifying Java-level USDT-like dtrace probes
kamg
parents:
100
diff
changeset
|
532 |
|
018d5b58dd4f
6537506: Provide a mechanism for specifying Java-level USDT-like dtrace probes
kamg
parents:
100
diff
changeset
|
533 if (nm != NULL) { |
|
018d5b58dd4f
6537506: Provide a mechanism for specifying Java-level USDT-like dtrace probes
kamg
parents:
100
diff
changeset
|
534 nm->log_new_nmethod(); |
|
018d5b58dd4f
6537506: Provide a mechanism for specifying Java-level USDT-like dtrace probes
kamg
parents:
100
diff
changeset
|
535 } |
|
018d5b58dd4f
6537506: Provide a mechanism for specifying Java-level USDT-like dtrace probes
kamg
parents:
100
diff
changeset
|
536 |
|
018d5b58dd4f
6537506: Provide a mechanism for specifying Java-level USDT-like dtrace probes
kamg
parents:
100
diff
changeset
|
537 return nm; |
|
018d5b58dd4f
6537506: Provide a mechanism for specifying Java-level USDT-like dtrace probes
kamg
parents:
100
diff
changeset
|
538 } |
|
018d5b58dd4f
6537506: Provide a mechanism for specifying Java-level USDT-like dtrace probes
kamg
parents:
100
diff
changeset
|
539 |
|
018d5b58dd4f
6537506: Provide a mechanism for specifying Java-level USDT-like dtrace probes
kamg
parents:
100
diff
changeset
|
540 #endif // def HAVE_DTRACE_H |
|
018d5b58dd4f
6537506: Provide a mechanism for specifying Java-level USDT-like dtrace probes
kamg
parents:
100
diff
changeset
|
541 |
| 0 | 542 nmethod* nmethod::new_nmethod(methodHandle method, |
| 543 int compile_id, | |
| 544 int entry_bci, | |
| 545 CodeOffsets* offsets, | |
| 546 int orig_pc_offset, | |
| 547 DebugInformationRecorder* debug_info, | |
| 548 Dependencies* dependencies, | |
| 549 CodeBuffer* code_buffer, int frame_size, | |
| 550 OopMapSet* oop_maps, | |
| 551 ExceptionHandlerTable* handler_table, | |
| 552 ImplicitExceptionTable* nul_chk_table, | |
| 553 AbstractCompiler* compiler, | |
| 554 int comp_level | |
| 555 ) | |
| 556 { | |
| 557 assert(debug_info->oop_recorder() == code_buffer->oop_recorder(), "shared OR"); | |
| 558 // create nmethod | |
| 559 nmethod* nm = NULL; | |
| 560 { MutexLockerEx mu(CodeCache_lock, Mutex::_no_safepoint_check_flag); | |
| 561 int nmethod_size = | |
| 562 allocation_size(code_buffer, sizeof(nmethod)) | |
| 563 + adjust_pcs_size(debug_info->pcs_size()) | |
| 564 + round_to(dependencies->size_in_bytes() , oopSize) | |
| 565 + round_to(handler_table->size_in_bytes(), oopSize) | |
| 566 + round_to(nul_chk_table->size_in_bytes(), oopSize) | |
| 567 + round_to(debug_info->data_size() , oopSize); | |
| 568 nm = new (nmethod_size) | |
| 569 nmethod(method(), nmethod_size, compile_id, entry_bci, offsets, | |
| 570 orig_pc_offset, debug_info, dependencies, code_buffer, frame_size, | |
| 571 oop_maps, | |
| 572 handler_table, | |
| 573 nul_chk_table, | |
| 574 compiler, | |
| 575 comp_level); | |
| 576 if (nm != NULL) { | |
| 577 // To make dependency checking during class loading fast, record | |
| 578 // the nmethod dependencies in the classes it is dependent on. | |
| 579 // This allows the dependency checking code to simply walk the | |
| 580 // class hierarchy above the loaded class, checking only nmethods | |
| 581 // which are dependent on those classes. The slow way is to | |
| 582 // check every nmethod for dependencies which makes it linear in | |
| 583 // the number of methods compiled. For applications with a lot | |
| 584 // classes the slow way is too slow. | |
| 585 for (Dependencies::DepStream deps(nm); deps.next(); ) { | |
| 586 klassOop klass = deps.context_type(); | |
| 587 if (klass == NULL) continue; // ignore things like evol_method | |
| 588 | |
| 589 // record this nmethod as dependent on this klass | |
| 590 instanceKlass::cast(klass)->add_dependent_nmethod(nm); | |
| 591 } | |
| 592 } | |
| 593 NOT_PRODUCT(if (nm != NULL) nmethod_stats.note_nmethod(nm)); | |
| 594 if (PrintAssembly && nm != NULL) | |
| 595 Disassembler::decode(nm); | |
| 596 } | |
| 597 | |
| 598 // verify nmethod | |
| 599 debug_only(if (nm) nm->verify();) // might block | |
| 600 | |
| 601 if (nm != NULL) { | |
| 602 nm->log_new_nmethod(); | |
| 603 } | |
| 604 | |
| 605 // done | |
| 606 return nm; | |
| 607 } | |
| 608 | |
| 609 | |
| 610 // For native wrappers | |
| 611 nmethod::nmethod( | |
| 612 methodOop method, | |
| 613 int nmethod_size, | |
| 614 CodeOffsets* offsets, | |
| 615 CodeBuffer* code_buffer, | |
| 616 int frame_size, | |
| 617 ByteSize basic_lock_owner_sp_offset, | |
| 618 ByteSize basic_lock_sp_offset, | |
| 619 OopMapSet* oop_maps ) | |
| 620 : CodeBlob("native nmethod", code_buffer, sizeof(nmethod), | |
| 621 nmethod_size, offsets->value(CodeOffsets::Frame_Complete), frame_size, oop_maps), | |
| 2019 | 622 _native_receiver_sp_offset(basic_lock_owner_sp_offset), |
| 623 _native_basic_lock_sp_offset(basic_lock_sp_offset) | |
| 0 | 624 { |
| 625 { | |
| 626 debug_only(No_Safepoint_Verifier nsv;) | |
| 627 assert_locked_or_safepoint(CodeCache_lock); | |
| 628 | |
|
1644
2a47bd84841f
6965184: possible races in make_not_entrant_or_zombie
never
parents:
1616
diff
changeset
|
629 init_defaults(); |
| 0 | 630 _method = method; |
| 631 _entry_bci = InvocationEntryBci; | |
| 632 // We have no exception handler or deopt handler make the | |
| 633 // values something that will never match a pc like the nmethod vtable entry | |
| 634 _exception_offset = 0; | |
| 635 _deoptimize_offset = 0; | |
| 1204 | 636 _deoptimize_mh_offset = 0; |
| 0 | 637 _orig_pc_offset = 0; |
|
1644
2a47bd84841f
6965184: possible races in make_not_entrant_or_zombie
never
parents:
1616
diff
changeset
|
638 |
| 1748 | 639 _consts_offset = data_offset(); |
| 0 | 640 _stub_offset = data_offset(); |
|
1563
1a5913bf5e19
6951083: oops and relocations should part of nmethod not CodeBlob
twisti
parents:
1538
diff
changeset
|
641 _oops_offset = data_offset(); |
|
1a5913bf5e19
6951083: oops and relocations should part of nmethod not CodeBlob
twisti
parents:
1538
diff
changeset
|
642 _scopes_data_offset = _oops_offset + round_to(code_buffer->total_oop_size(), oopSize); |
| 0 | 643 _scopes_pcs_offset = _scopes_data_offset; |
| 644 _dependencies_offset = _scopes_pcs_offset; | |
| 645 _handler_table_offset = _dependencies_offset; | |
| 646 _nul_chk_table_offset = _handler_table_offset; | |
| 647 _nmethod_end_offset = _nul_chk_table_offset; | |
| 648 _compile_id = 0; // default | |
| 649 _comp_level = CompLevel_none; | |
| 1748 | 650 _entry_point = code_begin() + offsets->value(CodeOffsets::Entry); |
| 651 _verified_entry_point = code_begin() + offsets->value(CodeOffsets::Verified_Entry); | |
| 0 | 652 _osr_entry_point = NULL; |
| 653 _exception_cache = NULL; | |
| 654 _pc_desc_cache.reset_to(NULL); | |
| 655 | |
| 656 code_buffer->copy_oops_to(this); | |
|
989
148e5441d916
6863023: need non-perm oops in code cache for JSR 292
jrose
parents:
931
diff
changeset
|
657 debug_only(verify_scavenge_root_oops()); |
| 0 | 658 CodeCache::commit(this); |
| 659 } | |
| 660 | |
| 661 if (PrintNativeNMethods || PrintDebugInfo || PrintRelocations || PrintDependencies) { | |
| 662 ttyLocker ttyl; // keep the following output all in one block | |
| 663 // This output goes directly to the tty, not the compiler log. | |
| 664 // To enable tools to match it up with the compilation activity, | |
| 665 // be sure to tag this tty output with the compile ID. | |
| 666 if (xtty != NULL) { | |
| 667 xtty->begin_head("print_native_nmethod"); | |
| 668 xtty->method(_method); | |
| 669 xtty->stamp(); | |
| 670 xtty->end_head(" address='" INTPTR_FORMAT "'", (intptr_t) this); | |
| 671 } | |
| 672 // print the header part first | |
| 673 print(); | |
| 674 // then print the requested information | |
| 675 if (PrintNativeNMethods) { | |
| 676 print_code(); | |
| 677 oop_maps->print(); | |
| 678 } | |
| 679 if (PrintRelocations) { | |
| 680 print_relocations(); | |
| 681 } | |
| 682 if (xtty != NULL) { | |
| 683 xtty->tail("print_native_nmethod"); | |
| 684 } | |
| 685 } | |
| 686 Events::log("Create nmethod " INTPTR_FORMAT, this); | |
| 687 } | |
| 688 | |
|
116
018d5b58dd4f
6537506: Provide a mechanism for specifying Java-level USDT-like dtrace probes
kamg
parents:
100
diff
changeset
|
689 // For dtrace wrappers |
|
018d5b58dd4f
6537506: Provide a mechanism for specifying Java-level USDT-like dtrace probes
kamg
parents:
100
diff
changeset
|
690 #ifdef HAVE_DTRACE_H |
|
018d5b58dd4f
6537506: Provide a mechanism for specifying Java-level USDT-like dtrace probes
kamg
parents:
100
diff
changeset
|
691 nmethod::nmethod( |
|
018d5b58dd4f
6537506: Provide a mechanism for specifying Java-level USDT-like dtrace probes
kamg
parents:
100
diff
changeset
|
692 methodOop method, |
|
018d5b58dd4f
6537506: Provide a mechanism for specifying Java-level USDT-like dtrace probes
kamg
parents:
100
diff
changeset
|
693 int nmethod_size, |
|
018d5b58dd4f
6537506: Provide a mechanism for specifying Java-level USDT-like dtrace probes
kamg
parents:
100
diff
changeset
|
694 CodeOffsets* offsets, |
|
018d5b58dd4f
6537506: Provide a mechanism for specifying Java-level USDT-like dtrace probes
kamg
parents:
100
diff
changeset
|
695 CodeBuffer* code_buffer, |
|
018d5b58dd4f
6537506: Provide a mechanism for specifying Java-level USDT-like dtrace probes
kamg
parents:
100
diff
changeset
|
696 int frame_size) |
|
018d5b58dd4f
6537506: Provide a mechanism for specifying Java-level USDT-like dtrace probes
kamg
parents:
100
diff
changeset
|
697 : CodeBlob("dtrace nmethod", code_buffer, sizeof(nmethod), |
|
018d5b58dd4f
6537506: Provide a mechanism for specifying Java-level USDT-like dtrace probes
kamg
parents:
100
diff
changeset
|
698 nmethod_size, offsets->value(CodeOffsets::Frame_Complete), frame_size, NULL), |
| 2019 | 699 _native_receiver_sp_offset(in_ByteSize(-1)), |
| 700 _native_basic_lock_sp_offset(in_ByteSize(-1)) | |
|
116
018d5b58dd4f
6537506: Provide a mechanism for specifying Java-level USDT-like dtrace probes
kamg
parents:
100
diff
changeset
|
701 { |
|
018d5b58dd4f
6537506: Provide a mechanism for specifying Java-level USDT-like dtrace probes
kamg
parents:
100
diff
changeset
|
702 { |
|
018d5b58dd4f
6537506: Provide a mechanism for specifying Java-level USDT-like dtrace probes
kamg
parents:
100
diff
changeset
|
703 debug_only(No_Safepoint_Verifier nsv;) |
|
018d5b58dd4f
6537506: Provide a mechanism for specifying Java-level USDT-like dtrace probes
kamg
parents:
100
diff
changeset
|
704 assert_locked_or_safepoint(CodeCache_lock); |
|
018d5b58dd4f
6537506: Provide a mechanism for specifying Java-level USDT-like dtrace probes
kamg
parents:
100
diff
changeset
|
705 |
|
1644
2a47bd84841f
6965184: possible races in make_not_entrant_or_zombie
never
parents:
1616
diff
changeset
|
706 init_defaults(); |
|
116
018d5b58dd4f
6537506: Provide a mechanism for specifying Java-level USDT-like dtrace probes
kamg
parents:
100
diff
changeset
|
707 _method = method; |
|
018d5b58dd4f
6537506: Provide a mechanism for specifying Java-level USDT-like dtrace probes
kamg
parents:
100
diff
changeset
|
708 _entry_bci = InvocationEntryBci; |
|
018d5b58dd4f
6537506: Provide a mechanism for specifying Java-level USDT-like dtrace probes
kamg
parents:
100
diff
changeset
|
709 // We have no exception handler or deopt handler make the |
|
018d5b58dd4f
6537506: Provide a mechanism for specifying Java-level USDT-like dtrace probes
kamg
parents:
100
diff
changeset
|
710 // values something that will never match a pc like the nmethod vtable entry |
|
018d5b58dd4f
6537506: Provide a mechanism for specifying Java-level USDT-like dtrace probes
kamg
parents:
100
diff
changeset
|
711 _exception_offset = 0; |
|
018d5b58dd4f
6537506: Provide a mechanism for specifying Java-level USDT-like dtrace probes
kamg
parents:
100
diff
changeset
|
712 _deoptimize_offset = 0; |
| 1204 | 713 _deoptimize_mh_offset = 0; |
|
1378
9f5b60a14736
6939930: exception unwind changes in 6919934 hurts compilation speed
never
parents:
1253
diff
changeset
|
714 _unwind_handler_offset = -1; |
|
116
018d5b58dd4f
6537506: Provide a mechanism for specifying Java-level USDT-like dtrace probes
kamg
parents:
100
diff
changeset
|
715 _trap_offset = offsets->value(CodeOffsets::Dtrace_trap); |
|
018d5b58dd4f
6537506: Provide a mechanism for specifying Java-level USDT-like dtrace probes
kamg
parents:
100
diff
changeset
|
716 _orig_pc_offset = 0; |
| 1748 | 717 _consts_offset = data_offset(); |
|
116
018d5b58dd4f
6537506: Provide a mechanism for specifying Java-level USDT-like dtrace probes
kamg
parents:
100
diff
changeset
|
718 _stub_offset = data_offset(); |
|
1563
1a5913bf5e19
6951083: oops and relocations should part of nmethod not CodeBlob
twisti
parents:
1538
diff
changeset
|
719 _oops_offset = data_offset(); |
|
1a5913bf5e19
6951083: oops and relocations should part of nmethod not CodeBlob
twisti
parents:
1538
diff
changeset
|
720 _scopes_data_offset = _oops_offset + round_to(code_buffer->total_oop_size(), oopSize); |
|
116
018d5b58dd4f
6537506: Provide a mechanism for specifying Java-level USDT-like dtrace probes
kamg
parents:
100
diff
changeset
|
721 _scopes_pcs_offset = _scopes_data_offset; |
|
018d5b58dd4f
6537506: Provide a mechanism for specifying Java-level USDT-like dtrace probes
kamg
parents:
100
diff
changeset
|
722 _dependencies_offset = _scopes_pcs_offset; |
|
018d5b58dd4f
6537506: Provide a mechanism for specifying Java-level USDT-like dtrace probes
kamg
parents:
100
diff
changeset
|
723 _handler_table_offset = _dependencies_offset; |
|
018d5b58dd4f
6537506: Provide a mechanism for specifying Java-level USDT-like dtrace probes
kamg
parents:
100
diff
changeset
|
724 _nul_chk_table_offset = _handler_table_offset; |
|
018d5b58dd4f
6537506: Provide a mechanism for specifying Java-level USDT-like dtrace probes
kamg
parents:
100
diff
changeset
|
725 _nmethod_end_offset = _nul_chk_table_offset; |
|
018d5b58dd4f
6537506: Provide a mechanism for specifying Java-level USDT-like dtrace probes
kamg
parents:
100
diff
changeset
|
726 _compile_id = 0; // default |
|
018d5b58dd4f
6537506: Provide a mechanism for specifying Java-level USDT-like dtrace probes
kamg
parents:
100
diff
changeset
|
727 _comp_level = CompLevel_none; |
| 1748 | 728 _entry_point = code_begin() + offsets->value(CodeOffsets::Entry); |
| 729 _verified_entry_point = code_begin() + offsets->value(CodeOffsets::Verified_Entry); | |
|
116
018d5b58dd4f
6537506: Provide a mechanism for specifying Java-level USDT-like dtrace probes
kamg
parents:
100
diff
changeset
|
730 _osr_entry_point = NULL; |
|
018d5b58dd4f
6537506: Provide a mechanism for specifying Java-level USDT-like dtrace probes
kamg
parents:
100
diff
changeset
|
731 _exception_cache = NULL; |
|
018d5b58dd4f
6537506: Provide a mechanism for specifying Java-level USDT-like dtrace probes
kamg
parents:
100
diff
changeset
|
732 _pc_desc_cache.reset_to(NULL); |
|
018d5b58dd4f
6537506: Provide a mechanism for specifying Java-level USDT-like dtrace probes
kamg
parents:
100
diff
changeset
|
733 |
|
018d5b58dd4f
6537506: Provide a mechanism for specifying Java-level USDT-like dtrace probes
kamg
parents:
100
diff
changeset
|
734 code_buffer->copy_oops_to(this); |
|
989
148e5441d916
6863023: need non-perm oops in code cache for JSR 292
jrose
parents:
931
diff
changeset
|
735 debug_only(verify_scavenge_root_oops()); |
|
116
018d5b58dd4f
6537506: Provide a mechanism for specifying Java-level USDT-like dtrace probes
kamg
parents:
100
diff
changeset
|
736 CodeCache::commit(this); |
|
018d5b58dd4f
6537506: Provide a mechanism for specifying Java-level USDT-like dtrace probes
kamg
parents:
100
diff
changeset
|
737 } |
|
018d5b58dd4f
6537506: Provide a mechanism for specifying Java-level USDT-like dtrace probes
kamg
parents:
100
diff
changeset
|
738 |
|
018d5b58dd4f
6537506: Provide a mechanism for specifying Java-level USDT-like dtrace probes
kamg
parents:
100
diff
changeset
|
739 if (PrintNMethods || PrintDebugInfo || PrintRelocations || PrintDependencies) { |
|
018d5b58dd4f
6537506: Provide a mechanism for specifying Java-level USDT-like dtrace probes
kamg
parents:
100
diff
changeset
|
740 ttyLocker ttyl; // keep the following output all in one block |
|
018d5b58dd4f
6537506: Provide a mechanism for specifying Java-level USDT-like dtrace probes
kamg
parents:
100
diff
changeset
|
741 // This output goes directly to the tty, not the compiler log. |
|
018d5b58dd4f
6537506: Provide a mechanism for specifying Java-level USDT-like dtrace probes
kamg
parents:
100
diff
changeset
|
742 // To enable tools to match it up with the compilation activity, |
|
018d5b58dd4f
6537506: Provide a mechanism for specifying Java-level USDT-like dtrace probes
kamg
parents:
100
diff
changeset
|
743 // be sure to tag this tty output with the compile ID. |
|
018d5b58dd4f
6537506: Provide a mechanism for specifying Java-level USDT-like dtrace probes
kamg
parents:
100
diff
changeset
|
744 if (xtty != NULL) { |
|
018d5b58dd4f
6537506: Provide a mechanism for specifying Java-level USDT-like dtrace probes
kamg
parents:
100
diff
changeset
|
745 xtty->begin_head("print_dtrace_nmethod"); |
|
018d5b58dd4f
6537506: Provide a mechanism for specifying Java-level USDT-like dtrace probes
kamg
parents:
100
diff
changeset
|
746 xtty->method(_method); |
|
018d5b58dd4f
6537506: Provide a mechanism for specifying Java-level USDT-like dtrace probes
kamg
parents:
100
diff
changeset
|
747 xtty->stamp(); |
|
018d5b58dd4f
6537506: Provide a mechanism for specifying Java-level USDT-like dtrace probes
kamg
parents:
100
diff
changeset
|
748 xtty->end_head(" address='" INTPTR_FORMAT "'", (intptr_t) this); |
|
018d5b58dd4f
6537506: Provide a mechanism for specifying Java-level USDT-like dtrace probes
kamg
parents:
100
diff
changeset
|
749 } |
|
018d5b58dd4f
6537506: Provide a mechanism for specifying Java-level USDT-like dtrace probes
kamg
parents:
100
diff
changeset
|
750 // print the header part first |
|
018d5b58dd4f
6537506: Provide a mechanism for specifying Java-level USDT-like dtrace probes
kamg
parents:
100
diff
changeset
|
751 print(); |
|
018d5b58dd4f
6537506: Provide a mechanism for specifying Java-level USDT-like dtrace probes
kamg
parents:
100
diff
changeset
|
752 // then print the requested information |
|
018d5b58dd4f
6537506: Provide a mechanism for specifying Java-level USDT-like dtrace probes
kamg
parents:
100
diff
changeset
|
753 if (PrintNMethods) { |
|
018d5b58dd4f
6537506: Provide a mechanism for specifying Java-level USDT-like dtrace probes
kamg
parents:
100
diff
changeset
|
754 print_code(); |
|
018d5b58dd4f
6537506: Provide a mechanism for specifying Java-level USDT-like dtrace probes
kamg
parents:
100
diff
changeset
|
755 } |
|
018d5b58dd4f
6537506: Provide a mechanism for specifying Java-level USDT-like dtrace probes
kamg
parents:
100
diff
changeset
|
756 if (PrintRelocations) { |
|
018d5b58dd4f
6537506: Provide a mechanism for specifying Java-level USDT-like dtrace probes
kamg
parents:
100
diff
changeset
|
757 print_relocations(); |
|
018d5b58dd4f
6537506: Provide a mechanism for specifying Java-level USDT-like dtrace probes
kamg
parents:
100
diff
changeset
|
758 } |
|
018d5b58dd4f
6537506: Provide a mechanism for specifying Java-level USDT-like dtrace probes
kamg
parents:
100
diff
changeset
|
759 if (xtty != NULL) { |
|
018d5b58dd4f
6537506: Provide a mechanism for specifying Java-level USDT-like dtrace probes
kamg
parents:
100
diff
changeset
|
760 xtty->tail("print_dtrace_nmethod"); |
|
018d5b58dd4f
6537506: Provide a mechanism for specifying Java-level USDT-like dtrace probes
kamg
parents:
100
diff
changeset
|
761 } |
|
018d5b58dd4f
6537506: Provide a mechanism for specifying Java-level USDT-like dtrace probes
kamg
parents:
100
diff
changeset
|
762 } |
|
018d5b58dd4f
6537506: Provide a mechanism for specifying Java-level USDT-like dtrace probes
kamg
parents:
100
diff
changeset
|
763 Events::log("Create nmethod " INTPTR_FORMAT, this); |
|
018d5b58dd4f
6537506: Provide a mechanism for specifying Java-level USDT-like dtrace probes
kamg
parents:
100
diff
changeset
|
764 } |
|
018d5b58dd4f
6537506: Provide a mechanism for specifying Java-level USDT-like dtrace probes
kamg
parents:
100
diff
changeset
|
765 #endif // def HAVE_DTRACE_H |
| 0 | 766 |
| 767 void* nmethod::operator new(size_t size, int nmethod_size) { | |
| 768 // Always leave some room in the CodeCache for I2C/C2I adapters | |
| 769 if (CodeCache::unallocated_capacity() < CodeCacheMinimumFreeSpace) return NULL; | |
| 770 return CodeCache::allocate(nmethod_size); | |
| 771 } | |
| 772 | |
| 773 | |
| 774 nmethod::nmethod( | |
| 775 methodOop method, | |
| 776 int nmethod_size, | |
| 777 int compile_id, | |
| 778 int entry_bci, | |
| 779 CodeOffsets* offsets, | |
| 780 int orig_pc_offset, | |
| 781 DebugInformationRecorder* debug_info, | |
| 782 Dependencies* dependencies, | |
| 783 CodeBuffer *code_buffer, | |
| 784 int frame_size, | |
| 785 OopMapSet* oop_maps, | |
| 786 ExceptionHandlerTable* handler_table, | |
| 787 ImplicitExceptionTable* nul_chk_table, | |
| 788 AbstractCompiler* compiler, | |
| 789 int comp_level | |
| 790 ) | |
| 791 : CodeBlob("nmethod", code_buffer, sizeof(nmethod), | |
| 792 nmethod_size, offsets->value(CodeOffsets::Frame_Complete), frame_size, oop_maps), | |
| 2019 | 793 _native_receiver_sp_offset(in_ByteSize(-1)), |
| 794 _native_basic_lock_sp_offset(in_ByteSize(-1)) | |
| 0 | 795 { |
| 796 assert(debug_info->oop_recorder() == code_buffer->oop_recorder(), "shared OR"); | |
| 797 { | |
| 798 debug_only(No_Safepoint_Verifier nsv;) | |
| 799 assert_locked_or_safepoint(CodeCache_lock); | |
| 800 | |
|
1644
2a47bd84841f
6965184: possible races in make_not_entrant_or_zombie
never
parents:
1616
diff
changeset
|
801 init_defaults(); |
| 0 | 802 _method = method; |
|
1644
2a47bd84841f
6965184: possible races in make_not_entrant_or_zombie
never
parents:
1616
diff
changeset
|
803 _entry_bci = entry_bci; |
| 0 | 804 _compile_id = compile_id; |
| 805 _comp_level = comp_level; | |
| 806 _compiler = compiler; | |
| 807 _orig_pc_offset = orig_pc_offset; | |
| 1748 | 808 |
| 809 // Section offsets | |
|
1762
0878d7bae69f
6961697: move nmethod constants section before instruction section
twisti
parents:
1748
diff
changeset
|
810 _consts_offset = content_offset() + code_buffer->total_offset_of(code_buffer->consts()); |
|
0878d7bae69f
6961697: move nmethod constants section before instruction section
twisti
parents:
1748
diff
changeset
|
811 _stub_offset = content_offset() + code_buffer->total_offset_of(code_buffer->stubs()); |
| 0 | 812 |
| 813 // Exception handler and deopt handler are in the stub section | |
|
2083
7d9caaedafce
6990933: assert(sender_cb) failed: sanity in frame::sender_for_interpreter_frame
twisti
parents:
1972
diff
changeset
|
814 assert(offsets->value(CodeOffsets::Exceptions) != -1, "must be set"); |
|
7d9caaedafce
6990933: assert(sender_cb) failed: sanity in frame::sender_for_interpreter_frame
twisti
parents:
1972
diff
changeset
|
815 assert(offsets->value(CodeOffsets::Deopt ) != -1, "must be set"); |
| 1748 | 816 _exception_offset = _stub_offset + offsets->value(CodeOffsets::Exceptions); |
| 817 _deoptimize_offset = _stub_offset + offsets->value(CodeOffsets::Deopt); | |
|
2083
7d9caaedafce
6990933: assert(sender_cb) failed: sanity in frame::sender_for_interpreter_frame
twisti
parents:
1972
diff
changeset
|
818 if (offsets->value(CodeOffsets::DeoptMH) != -1) { |
|
1762
0878d7bae69f
6961697: move nmethod constants section before instruction section
twisti
parents:
1748
diff
changeset
|
819 _deoptimize_mh_offset = _stub_offset + offsets->value(CodeOffsets::DeoptMH); |
|
0878d7bae69f
6961697: move nmethod constants section before instruction section
twisti
parents:
1748
diff
changeset
|
820 } else { |
|
0878d7bae69f
6961697: move nmethod constants section before instruction section
twisti
parents:
1748
diff
changeset
|
821 _deoptimize_mh_offset = -1; |
|
0878d7bae69f
6961697: move nmethod constants section before instruction section
twisti
parents:
1748
diff
changeset
|
822 } |
|
1378
9f5b60a14736
6939930: exception unwind changes in 6919934 hurts compilation speed
never
parents:
1253
diff
changeset
|
823 if (offsets->value(CodeOffsets::UnwindHandler) != -1) { |
| 1748 | 824 _unwind_handler_offset = code_offset() + offsets->value(CodeOffsets::UnwindHandler); |
|
1378
9f5b60a14736
6939930: exception unwind changes in 6919934 hurts compilation speed
never
parents:
1253
diff
changeset
|
825 } else { |
| 1748 | 826 _unwind_handler_offset = -1; |
|
1378
9f5b60a14736
6939930: exception unwind changes in 6919934 hurts compilation speed
never
parents:
1253
diff
changeset
|
827 } |
| 1748 | 828 |
|
1563
1a5913bf5e19
6951083: oops and relocations should part of nmethod not CodeBlob
twisti
parents:
1538
diff
changeset
|
829 _oops_offset = data_offset(); |
|
1a5913bf5e19
6951083: oops and relocations should part of nmethod not CodeBlob
twisti
parents:
1538
diff
changeset
|
830 _scopes_data_offset = _oops_offset + round_to(code_buffer->total_oop_size (), oopSize); |
|
1a5913bf5e19
6951083: oops and relocations should part of nmethod not CodeBlob
twisti
parents:
1538
diff
changeset
|
831 _scopes_pcs_offset = _scopes_data_offset + round_to(debug_info->data_size (), oopSize); |
| 0 | 832 _dependencies_offset = _scopes_pcs_offset + adjust_pcs_size(debug_info->pcs_size()); |
| 833 _handler_table_offset = _dependencies_offset + round_to(dependencies->size_in_bytes (), oopSize); | |
| 834 _nul_chk_table_offset = _handler_table_offset + round_to(handler_table->size_in_bytes(), oopSize); | |
| 835 _nmethod_end_offset = _nul_chk_table_offset + round_to(nul_chk_table->size_in_bytes(), oopSize); | |
| 836 | |
| 1748 | 837 _entry_point = code_begin() + offsets->value(CodeOffsets::Entry); |
| 838 _verified_entry_point = code_begin() + offsets->value(CodeOffsets::Verified_Entry); | |
| 839 _osr_entry_point = code_begin() + offsets->value(CodeOffsets::OSR_Entry); | |
| 0 | 840 _exception_cache = NULL; |
| 841 _pc_desc_cache.reset_to(scopes_pcs_begin()); | |
| 842 | |
| 843 // Copy contents of ScopeDescRecorder to nmethod | |
| 844 code_buffer->copy_oops_to(this); | |
| 845 debug_info->copy_to(this); | |
| 846 dependencies->copy_to(this); | |
|
989
148e5441d916
6863023: need non-perm oops in code cache for JSR 292
jrose
parents:
931
diff
changeset
|
847 if (ScavengeRootsInCode && detect_scavenge_root_oops()) { |
|
148e5441d916
6863023: need non-perm oops in code cache for JSR 292
jrose
parents:
931
diff
changeset
|
848 CodeCache::add_scavenge_root_nmethod(this); |
|
148e5441d916
6863023: need non-perm oops in code cache for JSR 292
jrose
parents:
931
diff
changeset
|
849 } |
|
148e5441d916
6863023: need non-perm oops in code cache for JSR 292
jrose
parents:
931
diff
changeset
|
850 debug_only(verify_scavenge_root_oops()); |
| 0 | 851 |
| 852 CodeCache::commit(this); | |
| 853 | |
| 854 // Copy contents of ExceptionHandlerTable to nmethod | |
| 855 handler_table->copy_to(this); | |
| 856 nul_chk_table->copy_to(this); | |
| 857 | |
| 858 // we use the information of entry points to find out if a method is | |
| 859 // static or non static | |
| 860 assert(compiler->is_c2() || | |
| 861 _method->is_static() == (entry_point() == _verified_entry_point), | |
| 862 " entry points must be same for static methods and vice versa"); | |
| 863 } | |
| 864 | |
|
100
c7c777385a15
6667042: PrintAssembly option does not work without special plugin
jrose
parents:
30
diff
changeset
|
865 bool printnmethods = PrintNMethods |
|
c7c777385a15
6667042: PrintAssembly option does not work without special plugin
jrose
parents:
30
diff
changeset
|
866 || CompilerOracle::should_print(_method) |
|
c7c777385a15
6667042: PrintAssembly option does not work without special plugin
jrose
parents:
30
diff
changeset
|
867 || CompilerOracle::has_option_string(_method, "PrintNMethods"); |
| 0 | 868 if (printnmethods || PrintDebugInfo || PrintRelocations || PrintDependencies || PrintExceptionHandlers) { |
| 869 print_nmethod(printnmethods); | |
| 870 } | |
| 871 | |
| 872 // Note: Do not verify in here as the CodeCache_lock is | |
| 873 // taken which would conflict with the CompiledIC_lock | |
| 874 // which taken during the verification of call sites. | |
| 875 // (was bug - gri 10/25/99) | |
| 876 | |
| 877 Events::log("Create nmethod " INTPTR_FORMAT, this); | |
| 878 } | |
| 879 | |
| 880 | |
| 881 // Print a short set of xml attributes to identify this nmethod. The | |
| 882 // output should be embedded in some other element. | |
| 883 void nmethod::log_identity(xmlStream* log) const { | |
| 884 log->print(" compile_id='%d'", compile_id()); | |
| 885 const char* nm_kind = compile_kind(); | |
| 886 if (nm_kind != NULL) log->print(" compile_kind='%s'", nm_kind); | |
| 887 if (compiler() != NULL) { | |
| 888 log->print(" compiler='%s'", compiler()->name()); | |
| 889 } | |
| 1783 | 890 if (TieredCompilation) { |
| 891 log->print(" level='%d'", comp_level()); | |
| 892 } | |
| 0 | 893 } |
| 894 | |
| 895 | |
| 896 #define LOG_OFFSET(log, name) \ | |
| 897 if ((intptr_t)name##_end() - (intptr_t)name##_begin()) \ | |
| 898 log->print(" " XSTR(name) "_offset='%d'" , \ | |
| 899 (intptr_t)name##_begin() - (intptr_t)this) | |
| 900 | |
| 901 | |
| 902 void nmethod::log_new_nmethod() const { | |
| 903 if (LogCompilation && xtty != NULL) { | |
| 904 ttyLocker ttyl; | |
| 905 HandleMark hm; | |
| 906 xtty->begin_elem("nmethod"); | |
| 907 log_identity(xtty); | |
| 1748 | 908 xtty->print(" entry='" INTPTR_FORMAT "' size='%d'", code_begin(), size()); |
| 0 | 909 xtty->print(" address='" INTPTR_FORMAT "'", (intptr_t) this); |
| 910 | |
| 911 LOG_OFFSET(xtty, relocation); | |
|
1762
0878d7bae69f
6961697: move nmethod constants section before instruction section
twisti
parents:
1748
diff
changeset
|
912 LOG_OFFSET(xtty, consts); |
| 1748 | 913 LOG_OFFSET(xtty, insts); |
| 0 | 914 LOG_OFFSET(xtty, stub); |
| 915 LOG_OFFSET(xtty, scopes_data); | |
| 916 LOG_OFFSET(xtty, scopes_pcs); | |
| 917 LOG_OFFSET(xtty, dependencies); | |
| 918 LOG_OFFSET(xtty, handler_table); | |
| 919 LOG_OFFSET(xtty, nul_chk_table); | |
| 920 LOG_OFFSET(xtty, oops); | |
| 921 | |
| 922 xtty->method(method()); | |
| 923 xtty->stamp(); | |
| 924 xtty->end_elem(); | |
| 925 } | |
| 926 } | |
| 927 | |
| 928 #undef LOG_OFFSET | |
| 929 | |
| 930 | |
| 1783 | 931 void nmethod::print_compilation(outputStream *st, const char *method_name, const char *title, |
| 932 methodOop method, bool is_blocking, int compile_id, int bci, int comp_level) { | |
| 933 bool is_synchronized = false, has_xhandler = false, is_native = false; | |
| 934 int code_size = -1; | |
| 935 if (method != NULL) { | |
| 936 is_synchronized = method->is_synchronized(); | |
| 937 has_xhandler = method->has_exception_handler(); | |
| 938 is_native = method->is_native(); | |
| 939 code_size = method->code_size(); | |
| 940 } | |
| 941 // print compilation number | |
| 942 st->print("%7d %3d", (int)tty->time_stamp().milliseconds(), compile_id); | |
| 943 | |
| 944 // print method attributes | |
| 945 const bool is_osr = bci != InvocationEntryBci; | |
| 946 const char blocking_char = is_blocking ? 'b' : ' '; | |
| 947 const char compile_type = is_osr ? '%' : ' '; | |
| 948 const char sync_char = is_synchronized ? 's' : ' '; | |
| 949 const char exception_char = has_xhandler ? '!' : ' '; | |
| 950 const char native_char = is_native ? 'n' : ' '; | |
| 951 st->print("%c%c%c%c%c ", compile_type, sync_char, exception_char, blocking_char, native_char); | |
| 952 if (TieredCompilation) { | |
| 953 st->print("%d ", comp_level); | |
| 954 } | |
| 955 | |
| 956 // print optional title | |
| 957 bool do_nl = false; | |
| 958 if (title != NULL) { | |
| 959 int tlen = (int) strlen(title); | |
| 960 bool do_nl = false; | |
| 961 if (tlen > 0 && title[tlen-1] == '\n') { tlen--; do_nl = true; } | |
| 962 st->print("%.*s", tlen, title); | |
| 963 } else { | |
| 964 do_nl = true; | |
| 965 } | |
| 966 | |
| 967 // print method name string if given | |
| 968 if (method_name != NULL) { | |
| 969 st->print(method_name); | |
| 970 } else { | |
| 971 // otherwise as the method to print itself | |
| 972 if (method != NULL && !Universe::heap()->is_gc_active()) { | |
| 973 method->print_short_name(st); | |
| 974 } else { | |
| 975 st->print("(method)"); | |
| 976 } | |
| 977 } | |
| 978 | |
| 979 if (method != NULL) { | |
| 980 // print osr_bci if any | |
| 981 if (is_osr) st->print(" @ %d", bci); | |
| 982 // print method size | |
| 983 st->print(" (%d bytes)", code_size); | |
| 984 } | |
| 985 if (do_nl) st->cr(); | |
| 986 } | |
| 987 | |
| 0 | 988 // Print out more verbose output usually for a newly created nmethod. |
| 989 void nmethod::print_on(outputStream* st, const char* title) const { | |
| 990 if (st != NULL) { | |
| 991 ttyLocker ttyl; | |
| 1783 | 992 print_compilation(st, /*method_name*/NULL, title, |
| 993 method(), /*is_blocking*/false, | |
|
1784
ac4f710073ed
6982921: assert(_entry_bci != InvocationEntryBci) failed: wrong kind of nmethod
iveresov
parents:
1783
diff
changeset
|
994 compile_id(), |
|
ac4f710073ed
6982921: assert(_entry_bci != InvocationEntryBci) failed: wrong kind of nmethod
iveresov
parents:
1783
diff
changeset
|
995 is_osr_method() ? osr_entry_bci() : InvocationEntryBci, |
|
ac4f710073ed
6982921: assert(_entry_bci != InvocationEntryBci) failed: wrong kind of nmethod
iveresov
parents:
1783
diff
changeset
|
996 comp_level()); |
| 0 | 997 if (WizardMode) st->print(" (" INTPTR_FORMAT ")", this); |
| 998 } | |
| 999 } | |
| 1000 | |
| 1001 | |
| 1002 void nmethod::print_nmethod(bool printmethod) { | |
| 1003 ttyLocker ttyl; // keep the following output all in one block | |
| 1004 if (xtty != NULL) { | |
| 1005 xtty->begin_head("print_nmethod"); | |
| 1006 xtty->stamp(); | |
| 1007 xtty->end_head(); | |
| 1008 } | |
| 1009 // print the header part first | |
| 1010 print(); | |
| 1011 // then print the requested information | |
| 1012 if (printmethod) { | |
| 1013 print_code(); | |
| 1014 print_pcs(); | |
| 1015 oop_maps()->print(); | |
| 1016 } | |
| 1017 if (PrintDebugInfo) { | |
| 1018 print_scopes(); | |
| 1019 } | |
| 1020 if (PrintRelocations) { | |
| 1021 print_relocations(); | |
| 1022 } | |
| 1023 if (PrintDependencies) { | |
| 1024 print_dependencies(); | |
| 1025 } | |
| 1026 if (PrintExceptionHandlers) { | |
| 1027 print_handler_table(); | |
| 1028 print_nul_chk_table(); | |
| 1029 } | |
| 1030 if (xtty != NULL) { | |
| 1031 xtty->tail("print_nmethod"); | |
| 1032 } | |
| 1033 } | |
| 1034 | |
| 1035 | |
|
1563
1a5913bf5e19
6951083: oops and relocations should part of nmethod not CodeBlob
twisti
parents:
1538
diff
changeset
|
1036 // Promote one word from an assembly-time handle to a live embedded oop. |
|
1a5913bf5e19
6951083: oops and relocations should part of nmethod not CodeBlob
twisti
parents:
1538
diff
changeset
|
1037 inline void nmethod::initialize_immediate_oop(oop* dest, jobject handle) { |
|
1a5913bf5e19
6951083: oops and relocations should part of nmethod not CodeBlob
twisti
parents:
1538
diff
changeset
|
1038 if (handle == NULL || |
|
1a5913bf5e19
6951083: oops and relocations should part of nmethod not CodeBlob
twisti
parents:
1538
diff
changeset
|
1039 // As a special case, IC oops are initialized to 1 or -1. |
|
1a5913bf5e19
6951083: oops and relocations should part of nmethod not CodeBlob
twisti
parents:
1538
diff
changeset
|
1040 handle == (jobject) Universe::non_oop_word()) { |
|
1a5913bf5e19
6951083: oops and relocations should part of nmethod not CodeBlob
twisti
parents:
1538
diff
changeset
|
1041 (*dest) = (oop) handle; |
|
1a5913bf5e19
6951083: oops and relocations should part of nmethod not CodeBlob
twisti
parents:
1538
diff
changeset
|
1042 } else { |
|
1a5913bf5e19
6951083: oops and relocations should part of nmethod not CodeBlob
twisti
parents:
1538
diff
changeset
|
1043 (*dest) = JNIHandles::resolve_non_null(handle); |
|
1a5913bf5e19
6951083: oops and relocations should part of nmethod not CodeBlob
twisti
parents:
1538
diff
changeset
|
1044 } |
|
1a5913bf5e19
6951083: oops and relocations should part of nmethod not CodeBlob
twisti
parents:
1538
diff
changeset
|
1045 } |
|
1a5913bf5e19
6951083: oops and relocations should part of nmethod not CodeBlob
twisti
parents:
1538
diff
changeset
|
1046 |
|
1a5913bf5e19
6951083: oops and relocations should part of nmethod not CodeBlob
twisti
parents:
1538
diff
changeset
|
1047 |
|
1a5913bf5e19
6951083: oops and relocations should part of nmethod not CodeBlob
twisti
parents:
1538
diff
changeset
|
1048 void nmethod::copy_oops(GrowableArray<jobject>* array) { |
|
1a5913bf5e19
6951083: oops and relocations should part of nmethod not CodeBlob
twisti
parents:
1538
diff
changeset
|
1049 //assert(oops_size() == 0, "do this handshake just once, please"); |
|
1a5913bf5e19
6951083: oops and relocations should part of nmethod not CodeBlob
twisti
parents:
1538
diff
changeset
|
1050 int length = array->length(); |
|
1a5913bf5e19
6951083: oops and relocations should part of nmethod not CodeBlob
twisti
parents:
1538
diff
changeset
|
1051 assert((address)(oops_begin() + length) <= data_end(), "oops big enough"); |
|
1a5913bf5e19
6951083: oops and relocations should part of nmethod not CodeBlob
twisti
parents:
1538
diff
changeset
|
1052 oop* dest = oops_begin(); |
|
1a5913bf5e19
6951083: oops and relocations should part of nmethod not CodeBlob
twisti
parents:
1538
diff
changeset
|
1053 for (int index = 0 ; index < length; index++) { |
|
1a5913bf5e19
6951083: oops and relocations should part of nmethod not CodeBlob
twisti
parents:
1538
diff
changeset
|
1054 initialize_immediate_oop(&dest[index], array->at(index)); |
|
1a5913bf5e19
6951083: oops and relocations should part of nmethod not CodeBlob
twisti
parents:
1538
diff
changeset
|
1055 } |
|
1a5913bf5e19
6951083: oops and relocations should part of nmethod not CodeBlob
twisti
parents:
1538
diff
changeset
|
1056 |
|
1a5913bf5e19
6951083: oops and relocations should part of nmethod not CodeBlob
twisti
parents:
1538
diff
changeset
|
1057 // Now we can fix up all the oops in the code. We need to do this |
|
1a5913bf5e19
6951083: oops and relocations should part of nmethod not CodeBlob
twisti
parents:
1538
diff
changeset
|
1058 // in the code because the assembler uses jobjects as placeholders. |
|
1a5913bf5e19
6951083: oops and relocations should part of nmethod not CodeBlob
twisti
parents:
1538
diff
changeset
|
1059 // The code and relocations have already been initialized by the |
|
1a5913bf5e19
6951083: oops and relocations should part of nmethod not CodeBlob
twisti
parents:
1538
diff
changeset
|
1060 // CodeBlob constructor, so it is valid even at this early point to |
|
1a5913bf5e19
6951083: oops and relocations should part of nmethod not CodeBlob
twisti
parents:
1538
diff
changeset
|
1061 // iterate over relocations and patch the code. |
|
1a5913bf5e19
6951083: oops and relocations should part of nmethod not CodeBlob
twisti
parents:
1538
diff
changeset
|
1062 fix_oop_relocations(NULL, NULL, /*initialize_immediates=*/ true); |
|
1a5913bf5e19
6951083: oops and relocations should part of nmethod not CodeBlob
twisti
parents:
1538
diff
changeset
|
1063 } |
|
1a5913bf5e19
6951083: oops and relocations should part of nmethod not CodeBlob
twisti
parents:
1538
diff
changeset
|
1064 |
|
1a5913bf5e19
6951083: oops and relocations should part of nmethod not CodeBlob
twisti
parents:
1538
diff
changeset
|
1065 |
|
1a5913bf5e19
6951083: oops and relocations should part of nmethod not CodeBlob
twisti
parents:
1538
diff
changeset
|
1066 bool nmethod::is_at_poll_return(address pc) { |
|
1a5913bf5e19
6951083: oops and relocations should part of nmethod not CodeBlob
twisti
parents:
1538
diff
changeset
|
1067 RelocIterator iter(this, pc, pc+1); |
|
1a5913bf5e19
6951083: oops and relocations should part of nmethod not CodeBlob
twisti
parents:
1538
diff
changeset
|
1068 while (iter.next()) { |
|
1a5913bf5e19
6951083: oops and relocations should part of nmethod not CodeBlob
twisti
parents:
1538
diff
changeset
|
1069 if (iter.type() == relocInfo::poll_return_type) |
|
1a5913bf5e19
6951083: oops and relocations should part of nmethod not CodeBlob
twisti
parents:
1538
diff
changeset
|
1070 return true; |
|
1a5913bf5e19
6951083: oops and relocations should part of nmethod not CodeBlob
twisti
parents:
1538
diff
changeset
|
1071 } |
|
1a5913bf5e19
6951083: oops and relocations should part of nmethod not CodeBlob
twisti
parents:
1538
diff
changeset
|
1072 return false; |
|
1a5913bf5e19
6951083: oops and relocations should part of nmethod not CodeBlob
twisti
parents:
1538
diff
changeset
|
1073 } |
|
1a5913bf5e19
6951083: oops and relocations should part of nmethod not CodeBlob
twisti
parents:
1538
diff
changeset
|
1074 |
|
1a5913bf5e19
6951083: oops and relocations should part of nmethod not CodeBlob
twisti
parents:
1538
diff
changeset
|
1075 |
|
1a5913bf5e19
6951083: oops and relocations should part of nmethod not CodeBlob
twisti
parents:
1538
diff
changeset
|
1076 bool nmethod::is_at_poll_or_poll_return(address pc) { |
|
1a5913bf5e19
6951083: oops and relocations should part of nmethod not CodeBlob
twisti
parents:
1538
diff
changeset
|
1077 RelocIterator iter(this, pc, pc+1); |
|
1a5913bf5e19
6951083: oops and relocations should part of nmethod not CodeBlob
twisti
parents:
1538
diff
changeset
|
1078 while (iter.next()) { |
|
1a5913bf5e19
6951083: oops and relocations should part of nmethod not CodeBlob
twisti
parents:
1538
diff
changeset
|
1079 relocInfo::relocType t = iter.type(); |
|
1a5913bf5e19
6951083: oops and relocations should part of nmethod not CodeBlob
twisti
parents:
1538
diff
changeset
|
1080 if (t == relocInfo::poll_return_type || t == relocInfo::poll_type) |
|
1a5913bf5e19
6951083: oops and relocations should part of nmethod not CodeBlob
twisti
parents:
1538
diff
changeset
|
1081 return true; |
|
1a5913bf5e19
6951083: oops and relocations should part of nmethod not CodeBlob
twisti
parents:
1538
diff
changeset
|
1082 } |
|
1a5913bf5e19
6951083: oops and relocations should part of nmethod not CodeBlob
twisti
parents:
1538
diff
changeset
|
1083 return false; |
|
1a5913bf5e19
6951083: oops and relocations should part of nmethod not CodeBlob
twisti
parents:
1538
diff
changeset
|
1084 } |
|
1a5913bf5e19
6951083: oops and relocations should part of nmethod not CodeBlob
twisti
parents:
1538
diff
changeset
|
1085 |
|
1a5913bf5e19
6951083: oops and relocations should part of nmethod not CodeBlob
twisti
parents:
1538
diff
changeset
|
1086 |
|
1a5913bf5e19
6951083: oops and relocations should part of nmethod not CodeBlob
twisti
parents:
1538
diff
changeset
|
1087 void nmethod::fix_oop_relocations(address begin, address end, bool initialize_immediates) { |
|
1a5913bf5e19
6951083: oops and relocations should part of nmethod not CodeBlob
twisti
parents:
1538
diff
changeset
|
1088 // re-patch all oop-bearing instructions, just in case some oops moved |
|
1a5913bf5e19
6951083: oops and relocations should part of nmethod not CodeBlob
twisti
parents:
1538
diff
changeset
|
1089 RelocIterator iter(this, begin, end); |
|
1a5913bf5e19
6951083: oops and relocations should part of nmethod not CodeBlob
twisti
parents:
1538
diff
changeset
|
1090 while (iter.next()) { |
|
1a5913bf5e19
6951083: oops and relocations should part of nmethod not CodeBlob
twisti
parents:
1538
diff
changeset
|
1091 if (iter.type() == relocInfo::oop_type) { |
|
1a5913bf5e19
6951083: oops and relocations should part of nmethod not CodeBlob
twisti
parents:
1538
diff
changeset
|
1092 oop_Relocation* reloc = iter.oop_reloc(); |
|
1a5913bf5e19
6951083: oops and relocations should part of nmethod not CodeBlob
twisti
parents:
1538
diff
changeset
|
1093 if (initialize_immediates && reloc->oop_is_immediate()) { |
|
1a5913bf5e19
6951083: oops and relocations should part of nmethod not CodeBlob
twisti
parents:
1538
diff
changeset
|
1094 oop* dest = reloc->oop_addr(); |
|
1a5913bf5e19
6951083: oops and relocations should part of nmethod not CodeBlob
twisti
parents:
1538
diff
changeset
|
1095 initialize_immediate_oop(dest, (jobject) *dest); |
|
1a5913bf5e19
6951083: oops and relocations should part of nmethod not CodeBlob
twisti
parents:
1538
diff
changeset
|
1096 } |
|
1a5913bf5e19
6951083: oops and relocations should part of nmethod not CodeBlob
twisti
parents:
1538
diff
changeset
|
1097 // Refresh the oop-related bits of this instruction. |
|
1a5913bf5e19
6951083: oops and relocations should part of nmethod not CodeBlob
twisti
parents:
1538
diff
changeset
|
1098 reloc->fix_oop_relocation(); |
|
1a5913bf5e19
6951083: oops and relocations should part of nmethod not CodeBlob
twisti
parents:
1538
diff
changeset
|
1099 } |
|
1a5913bf5e19
6951083: oops and relocations should part of nmethod not CodeBlob
twisti
parents:
1538
diff
changeset
|
1100 |
|
1a5913bf5e19
6951083: oops and relocations should part of nmethod not CodeBlob
twisti
parents:
1538
diff
changeset
|
1101 // There must not be any interfering patches or breakpoints. |
|
1a5913bf5e19
6951083: oops and relocations should part of nmethod not CodeBlob
twisti
parents:
1538
diff
changeset
|
1102 assert(!(iter.type() == relocInfo::breakpoint_type |
|
1a5913bf5e19
6951083: oops and relocations should part of nmethod not CodeBlob
twisti
parents:
1538
diff
changeset
|
1103 && iter.breakpoint_reloc()->active()), |
|
1a5913bf5e19
6951083: oops and relocations should part of nmethod not CodeBlob
twisti
parents:
1538
diff
changeset
|
1104 "no active breakpoint"); |
|
1a5913bf5e19
6951083: oops and relocations should part of nmethod not CodeBlob
twisti
parents:
1538
diff
changeset
|
1105 } |
|
1a5913bf5e19
6951083: oops and relocations should part of nmethod not CodeBlob
twisti
parents:
1538
diff
changeset
|
1106 } |
|
1a5913bf5e19
6951083: oops and relocations should part of nmethod not CodeBlob
twisti
parents:
1538
diff
changeset
|
1107 |
|
1a5913bf5e19
6951083: oops and relocations should part of nmethod not CodeBlob
twisti
parents:
1538
diff
changeset
|
1108 |
| 0 | 1109 ScopeDesc* nmethod::scope_desc_at(address pc) { |
| 1110 PcDesc* pd = pc_desc_at(pc); | |
| 1111 guarantee(pd != NULL, "scope must be present"); | |
| 1112 return new ScopeDesc(this, pd->scope_decode_offset(), | |
|
1253
f70b0d9ab095
6910618: C2: Error: assert(d->is_oop(),"JVM_ArrayCopy: dst not an oop")
kvn
parents:
1250
diff
changeset
|
1113 pd->obj_decode_offset(), pd->should_reexecute(), |
|
f70b0d9ab095
6910618: C2: Error: assert(d->is_oop(),"JVM_ArrayCopy: dst not an oop")
kvn
parents:
1250
diff
changeset
|
1114 pd->return_oop()); |
| 0 | 1115 } |
| 1116 | |
| 1117 | |
| 1118 void nmethod::clear_inline_caches() { | |
| 1119 assert(SafepointSynchronize::is_at_safepoint(), "cleaning of IC's only allowed at safepoint"); | |
| 1120 if (is_zombie()) { | |
| 1121 return; | |
| 1122 } | |
| 1123 | |
| 1124 RelocIterator iter(this); | |
| 1125 while (iter.next()) { | |
| 1126 iter.reloc()->clear_inline_cache(); | |
| 1127 } | |
| 1128 } | |
| 1129 | |
| 1130 | |
| 1131 void nmethod::cleanup_inline_caches() { | |
| 1132 | |
|
1538
bfe29ec02863
6950075: nmethod sweeper should operate concurrently
never
parents:
1490
diff
changeset
|
1133 assert_locked_or_safepoint(CompiledIC_lock); |
| 0 | 1134 |
| 1135 // If the method is not entrant or zombie then a JMP is plastered over the | |
| 1136 // first few bytes. If an oop in the old code was there, that oop | |
| 1137 // should not get GC'd. Skip the first few bytes of oops on | |
| 1138 // not-entrant methods. | |
| 1139 address low_boundary = verified_entry_point(); | |
| 1140 if (!is_in_use()) { | |
| 1141 low_boundary += NativeJump::instruction_size; | |
| 1142 // %%% Note: On SPARC we patch only a 4-byte trap, not a full NativeJump. | |
| 1143 // This means that the low_boundary is going to be a little too high. | |
| 1144 // This shouldn't matter, since oops of non-entrant methods are never used. | |
| 1145 // In fact, why are we bothering to look at oops in a non-entrant method?? | |
| 1146 } | |
| 1147 | |
| 1148 // Find all calls in an nmethod, and clear the ones that points to zombie methods | |
| 1149 ResourceMark rm; | |
| 1150 RelocIterator iter(this, low_boundary); | |
| 1151 while(iter.next()) { | |
| 1152 switch(iter.type()) { | |
| 1153 case relocInfo::virtual_call_type: | |
| 1154 case relocInfo::opt_virtual_call_type: { | |
| 1155 CompiledIC *ic = CompiledIC_at(iter.reloc()); | |
| 1156 // Ok, to lookup references to zombies here | |
| 1157 CodeBlob *cb = CodeCache::find_blob_unsafe(ic->ic_destination()); | |
| 1158 if( cb != NULL && cb->is_nmethod() ) { | |
| 1159 nmethod* nm = (nmethod*)cb; | |
| 1160 // Clean inline caches pointing to both zombie and not_entrant methods | |
| 1202 | 1161 if (!nm->is_in_use() || (nm->method()->code() != nm)) ic->set_to_clean(); |
| 0 | 1162 } |
| 1163 break; | |
| 1164 } | |
| 1165 case relocInfo::static_call_type: { | |
| 1166 CompiledStaticCall *csc = compiledStaticCall_at(iter.reloc()); | |
| 1167 CodeBlob *cb = CodeCache::find_blob_unsafe(csc->destination()); | |
| 1168 if( cb != NULL && cb->is_nmethod() ) { | |
| 1169 nmethod* nm = (nmethod*)cb; | |
| 1170 // Clean inline caches pointing to both zombie and not_entrant methods | |
| 1202 | 1171 if (!nm->is_in_use() || (nm->method()->code() != nm)) csc->set_to_clean(); |
| 0 | 1172 } |
| 1173 break; | |
| 1174 } | |
| 1175 } | |
| 1176 } | |
| 1177 } | |
| 1178 | |
|
989
148e5441d916
6863023: need non-perm oops in code cache for JSR 292
jrose
parents:
931
diff
changeset
|
1179 // This is a private interface with the sweeper. |
| 0 | 1180 void nmethod::mark_as_seen_on_stack() { |
| 1181 assert(is_not_entrant(), "must be a non-entrant method"); | |
|
1644
2a47bd84841f
6965184: possible races in make_not_entrant_or_zombie
never
parents:
1616
diff
changeset
|
1182 // Set the traversal mark to ensure that the sweeper does 2 |
|
2a47bd84841f
6965184: possible races in make_not_entrant_or_zombie
never
parents:
1616
diff
changeset
|
1183 // cleaning passes before moving to zombie. |
| 0 | 1184 set_stack_traversal_mark(NMethodSweeper::traversal_count()); |
| 1185 } | |
| 1186 | |
| 1187 // Tell if a non-entrant method can be converted to a zombie (i.e., there is no activations on the stack) | |
| 1188 bool nmethod::can_not_entrant_be_converted() { | |
| 1189 assert(is_not_entrant(), "must be a non-entrant method"); | |
| 1190 | |
| 1191 // Since the nmethod sweeper only does partial sweep the sweeper's traversal | |
| 1192 // count can be greater than the stack traversal count before it hits the | |
| 1193 // nmethod for the second time. | |
| 1194 return stack_traversal_mark()+1 < NMethodSweeper::traversal_count(); | |
| 1195 } | |
| 1196 | |
| 1197 void nmethod::inc_decompile_count() { | |
| 1783 | 1198 if (!is_compiled_by_c2()) return; |
| 0 | 1199 // Could be gated by ProfileTraps, but do not bother... |
| 1200 methodOop m = method(); | |
| 1201 if (m == NULL) return; | |
| 1202 methodDataOop mdo = m->method_data(); | |
| 1203 if (mdo == NULL) return; | |
| 1204 // There is a benign race here. See comments in methodDataOop.hpp. | |
| 1205 mdo->inc_decompile_count(); | |
| 1206 } | |
| 1207 | |
| 1208 void nmethod::make_unloaded(BoolObjectClosure* is_alive, oop cause) { | |
| 1209 | |
| 1210 post_compiled_method_unload(); | |
| 1211 | |
| 1212 // Since this nmethod is being unloaded, make sure that dependencies | |
| 1213 // recorded in instanceKlasses get flushed and pass non-NULL closure to | |
| 1214 // indicate that this work is being done during a GC. | |
| 1215 assert(Universe::heap()->is_gc_active(), "should only be called during gc"); | |
| 1216 assert(is_alive != NULL, "Should be non-NULL"); | |
| 1217 // A non-NULL is_alive closure indicates that this is being called during GC. | |
| 1218 flush_dependencies(is_alive); | |
| 1219 | |
| 1220 // Break cycle between nmethod & method | |
| 1221 if (TraceClassUnloading && WizardMode) { | |
| 1222 tty->print_cr("[Class unloading: Making nmethod " INTPTR_FORMAT | |
| 1223 " unloadable], methodOop(" INTPTR_FORMAT | |
| 1224 "), cause(" INTPTR_FORMAT ")", | |
| 1225 this, (address)_method, (address)cause); | |
|
989
148e5441d916
6863023: need non-perm oops in code cache for JSR 292
jrose
parents:
931
diff
changeset
|
1226 if (!Universe::heap()->is_gc_active()) |
|
148e5441d916
6863023: need non-perm oops in code cache for JSR 292
jrose
parents:
931
diff
changeset
|
1227 cause->klass()->print(); |
| 0 | 1228 } |
| 941 | 1229 // Unlink the osr method, so we do not look this up again |
| 1230 if (is_osr_method()) { | |
| 1231 invalidate_osr_method(); | |
| 1232 } | |
| 0 | 1233 // If _method is already NULL the methodOop is about to be unloaded, |
| 1234 // so we don't have to break the cycle. Note that it is possible to | |
| 1235 // have the methodOop live here, in case we unload the nmethod because | |
| 1236 // it is pointing to some oop (other than the methodOop) being unloaded. | |
| 1237 if (_method != NULL) { | |
| 1238 // OSR methods point to the methodOop, but the methodOop does not | |
| 1239 // point back! | |
| 1240 if (_method->code() == this) { | |
| 1241 _method->clear_code(); // Break a cycle | |
| 1242 } | |
| 1243 _method = NULL; // Clear the method of this dead nmethod | |
| 1244 } | |
| 1245 // Make the class unloaded - i.e., change state and notify sweeper | |
|
1538
bfe29ec02863
6950075: nmethod sweeper should operate concurrently
never
parents:
1490
diff
changeset
|
1246 assert(SafepointSynchronize::is_at_safepoint(), "must be at safepoint"); |
| 0 | 1247 if (is_in_use()) { |
| 1248 // Transitioning directly from live to unloaded -- so | |
| 1249 // we need to force a cache clean-up; remember this | |
| 1250 // for later on. | |
| 1251 CodeCache::set_needs_cache_clean(true); | |
| 1252 } | |
|
1644
2a47bd84841f
6965184: possible races in make_not_entrant_or_zombie
never
parents:
1616
diff
changeset
|
1253 _state = unloaded; |
| 0 | 1254 |
|
1109
032260830071
5057818: codecache full and compiler disabled in bigapps fastdebug run
never
parents:
994
diff
changeset
|
1255 // Log the unloading. |
|
032260830071
5057818: codecache full and compiler disabled in bigapps fastdebug run
never
parents:
994
diff
changeset
|
1256 log_state_change(); |
|
032260830071
5057818: codecache full and compiler disabled in bigapps fastdebug run
never
parents:
994
diff
changeset
|
1257 |
| 0 | 1258 // The methodOop is gone at this point |
| 1259 assert(_method == NULL, "Tautology"); | |
| 1260 | |
|
989
148e5441d916
6863023: need non-perm oops in code cache for JSR 292
jrose
parents:
931
diff
changeset
|
1261 set_osr_link(NULL); |
|
148e5441d916
6863023: need non-perm oops in code cache for JSR 292
jrose
parents:
931
diff
changeset
|
1262 //set_scavenge_root_link(NULL); // done by prune_scavenge_root_nmethods |
| 0 | 1263 NMethodSweeper::notify(this); |
| 1264 } | |
| 1265 | |
| 1266 void nmethod::invalidate_osr_method() { | |
| 1267 assert(_entry_bci != InvocationEntryBci, "wrong kind of nmethod"); | |
| 1268 // Remove from list of active nmethods | |
| 1269 if (method() != NULL) | |
| 1270 instanceKlass::cast(method()->method_holder())->remove_osr_nmethod(this); | |
| 1271 // Set entry as invalid | |
| 1272 _entry_bci = InvalidOSREntryBci; | |
| 1273 } | |
| 1274 | |
|
1109
032260830071
5057818: codecache full and compiler disabled in bigapps fastdebug run
never
parents:
994
diff
changeset
|
1275 void nmethod::log_state_change() const { |
| 0 | 1276 if (LogCompilation) { |
| 1277 if (xtty != NULL) { | |
| 1278 ttyLocker ttyl; // keep the following output all in one block | |
|
1644
2a47bd84841f
6965184: possible races in make_not_entrant_or_zombie
never
parents:
1616
diff
changeset
|
1279 if (_state == unloaded) { |
|
1109
032260830071
5057818: codecache full and compiler disabled in bigapps fastdebug run
never
parents:
994
diff
changeset
|
1280 xtty->begin_elem("make_unloaded thread='" UINTX_FORMAT "'", |
|
032260830071
5057818: codecache full and compiler disabled in bigapps fastdebug run
never
parents:
994
diff
changeset
|
1281 os::current_thread_id()); |
|
032260830071
5057818: codecache full and compiler disabled in bigapps fastdebug run
never
parents:
994
diff
changeset
|
1282 } else { |
|
032260830071
5057818: codecache full and compiler disabled in bigapps fastdebug run
never
parents:
994
diff
changeset
|
1283 xtty->begin_elem("make_not_entrant thread='" UINTX_FORMAT "'%s", |
|
032260830071
5057818: codecache full and compiler disabled in bigapps fastdebug run
never
parents:
994
diff
changeset
|
1284 os::current_thread_id(), |
|
1644
2a47bd84841f
6965184: possible races in make_not_entrant_or_zombie
never
parents:
1616
diff
changeset
|
1285 (_state == zombie ? " zombie='1'" : "")); |
|
1109
032260830071
5057818: codecache full and compiler disabled in bigapps fastdebug run
never
parents:
994
diff
changeset
|
1286 } |
| 0 | 1287 log_identity(xtty); |
| 1288 xtty->stamp(); | |
| 1289 xtty->end_elem(); | |
| 1290 } | |
| 1291 } | |
|
1644
2a47bd84841f
6965184: possible races in make_not_entrant_or_zombie
never
parents:
1616
diff
changeset
|
1292 if (PrintCompilation && _state != unloaded) { |
|
2a47bd84841f
6965184: possible races in make_not_entrant_or_zombie
never
parents:
1616
diff
changeset
|
1293 print_on(tty, _state == zombie ? "made zombie " : "made not entrant "); |
| 0 | 1294 tty->cr(); |
| 1295 } | |
| 1296 } | |
| 1297 | |
| 1298 // Common functionality for both make_not_entrant and make_zombie | |
| 1141 | 1299 bool nmethod::make_not_entrant_or_zombie(unsigned int state) { |
| 0 | 1300 assert(state == zombie || state == not_entrant, "must be zombie or not_entrant"); |
| 1301 | |
|
1644
2a47bd84841f
6965184: possible races in make_not_entrant_or_zombie
never
parents:
1616
diff
changeset
|
1302 // Make sure neither the nmethod nor the method is flushed in case of a safepoint in code below. |
| 0 | 1303 nmethodLocker nml(this); |
|
1644
2a47bd84841f
6965184: possible races in make_not_entrant_or_zombie
never
parents:
1616
diff
changeset
|
1304 methodHandle the_method(method()); |
| 1726 | 1305 No_Safepoint_Verifier nsv; |
| 0 | 1306 |
| 1307 { | |
|
1206
87684f1a88b5
6614597: Performance variability in jvm2008 xml.validation
kvn
parents:
1204
diff
changeset
|
1308 // If the method is already zombie there is nothing to do |
|
87684f1a88b5
6614597: Performance variability in jvm2008 xml.validation
kvn
parents:
1204
diff
changeset
|
1309 if (is_zombie()) { |
|
87684f1a88b5
6614597: Performance variability in jvm2008 xml.validation
kvn
parents:
1204
diff
changeset
|
1310 return false; |
|
87684f1a88b5
6614597: Performance variability in jvm2008 xml.validation
kvn
parents:
1204
diff
changeset
|
1311 } |
|
87684f1a88b5
6614597: Performance variability in jvm2008 xml.validation
kvn
parents:
1204
diff
changeset
|
1312 |
|
1109
032260830071
5057818: codecache full and compiler disabled in bigapps fastdebug run
never
parents:
994
diff
changeset
|
1313 // invalidate osr nmethod before acquiring the patching lock since |
|
032260830071
5057818: codecache full and compiler disabled in bigapps fastdebug run
never
parents:
994
diff
changeset
|
1314 // they both acquire leaf locks and we don't want a deadlock. |
|
032260830071
5057818: codecache full and compiler disabled in bigapps fastdebug run
never
parents:
994
diff
changeset
|
1315 // This logic is equivalent to the logic below for patching the |
|
032260830071
5057818: codecache full and compiler disabled in bigapps fastdebug run
never
parents:
994
diff
changeset
|
1316 // verified entry point of regular methods. |
|
032260830071
5057818: codecache full and compiler disabled in bigapps fastdebug run
never
parents:
994
diff
changeset
|
1317 if (is_osr_method()) { |
|
032260830071
5057818: codecache full and compiler disabled in bigapps fastdebug run
never
parents:
994
diff
changeset
|
1318 // this effectively makes the osr nmethod not entrant |
|
032260830071
5057818: codecache full and compiler disabled in bigapps fastdebug run
never
parents:
994
diff
changeset
|
1319 invalidate_osr_method(); |
|
032260830071
5057818: codecache full and compiler disabled in bigapps fastdebug run
never
parents:
994
diff
changeset
|
1320 } |
|
032260830071
5057818: codecache full and compiler disabled in bigapps fastdebug run
never
parents:
994
diff
changeset
|
1321 |
| 0 | 1322 // Enter critical section. Does not block for safepoint. |
| 1323 MutexLockerEx pl(Patching_lock, Mutex::_no_safepoint_check_flag); | |
|
1109
032260830071
5057818: codecache full and compiler disabled in bigapps fastdebug run
never
parents:
994
diff
changeset
|
1324 |
|
1644
2a47bd84841f
6965184: possible races in make_not_entrant_or_zombie
never
parents:
1616
diff
changeset
|
1325 if (_state == state) { |
|
1109
032260830071
5057818: codecache full and compiler disabled in bigapps fastdebug run
never
parents:
994
diff
changeset
|
1326 // another thread already performed this transition so nothing |
|
032260830071
5057818: codecache full and compiler disabled in bigapps fastdebug run
never
parents:
994
diff
changeset
|
1327 // to do, but return false to indicate this. |
|
032260830071
5057818: codecache full and compiler disabled in bigapps fastdebug run
never
parents:
994
diff
changeset
|
1328 return false; |
|
032260830071
5057818: codecache full and compiler disabled in bigapps fastdebug run
never
parents:
994
diff
changeset
|
1329 } |
|
032260830071
5057818: codecache full and compiler disabled in bigapps fastdebug run
never
parents:
994
diff
changeset
|
1330 |
| 0 | 1331 // The caller can be calling the method statically or through an inline |
| 1332 // cache call. | |
|
1109
032260830071
5057818: codecache full and compiler disabled in bigapps fastdebug run
never
parents:
994
diff
changeset
|
1333 if (!is_osr_method() && !is_not_entrant()) { |
| 0 | 1334 NativeJump::patch_verified_entry(entry_point(), verified_entry_point(), |
| 1335 SharedRuntime::get_handle_wrong_method_stub()); | |
| 1336 } | |
| 1337 | |
|
1644
2a47bd84841f
6965184: possible races in make_not_entrant_or_zombie
never
parents:
1616
diff
changeset
|
1338 if (is_in_use()) { |
|
2a47bd84841f
6965184: possible races in make_not_entrant_or_zombie
never
parents:
1616
diff
changeset
|
1339 // It's a true state change, so mark the method as decompiled. |
|
2a47bd84841f
6965184: possible races in make_not_entrant_or_zombie
never
parents:
1616
diff
changeset
|
1340 // Do it only for transition from alive. |
|
2a47bd84841f
6965184: possible races in make_not_entrant_or_zombie
never
parents:
1616
diff
changeset
|
1341 inc_decompile_count(); |
|
2a47bd84841f
6965184: possible races in make_not_entrant_or_zombie
never
parents:
1616
diff
changeset
|
1342 } |
|
1206
87684f1a88b5
6614597: Performance variability in jvm2008 xml.validation
kvn
parents:
1204
diff
changeset
|
1343 |
| 0 | 1344 // Change state |
|
1644
2a47bd84841f
6965184: possible races in make_not_entrant_or_zombie
never
parents:
1616
diff
changeset
|
1345 _state = state; |
|
1109
032260830071
5057818: codecache full and compiler disabled in bigapps fastdebug run
never
parents:
994
diff
changeset
|
1346 |
|
032260830071
5057818: codecache full and compiler disabled in bigapps fastdebug run
never
parents:
994
diff
changeset
|
1347 // Log the transition once |
|
032260830071
5057818: codecache full and compiler disabled in bigapps fastdebug run
never
parents:
994
diff
changeset
|
1348 log_state_change(); |
|
032260830071
5057818: codecache full and compiler disabled in bigapps fastdebug run
never
parents:
994
diff
changeset
|
1349 |
|
1644
2a47bd84841f
6965184: possible races in make_not_entrant_or_zombie
never
parents:
1616
diff
changeset
|
1350 // Remove nmethod from method. |
|
2a47bd84841f
6965184: possible races in make_not_entrant_or_zombie
never
parents:
1616
diff
changeset
|
1351 // We need to check if both the _code and _from_compiled_code_entry_point |
|
2a47bd84841f
6965184: possible races in make_not_entrant_or_zombie
never
parents:
1616
diff
changeset
|
1352 // refer to this nmethod because there is a race in setting these two fields |
|
2a47bd84841f
6965184: possible races in make_not_entrant_or_zombie
never
parents:
1616
diff
changeset
|
1353 // in methodOop as seen in bugid 4947125. |
|
2a47bd84841f
6965184: possible races in make_not_entrant_or_zombie
never
parents:
1616
diff
changeset
|
1354 // If the vep() points to the zombie nmethod, the memory for the nmethod |
|
2a47bd84841f
6965184: possible races in make_not_entrant_or_zombie
never
parents:
1616
diff
changeset
|
1355 // could be flushed and the compiler and vtable stubs could still call |
|
2a47bd84841f
6965184: possible races in make_not_entrant_or_zombie
never
parents:
1616
diff
changeset
|
1356 // through it. |
|
2a47bd84841f
6965184: possible races in make_not_entrant_or_zombie
never
parents:
1616
diff
changeset
|
1357 if (method() != NULL && (method()->code() == this || |
|
2a47bd84841f
6965184: possible races in make_not_entrant_or_zombie
never
parents:
1616
diff
changeset
|
1358 method()->from_compiled_entry() == verified_entry_point())) { |
|
2a47bd84841f
6965184: possible races in make_not_entrant_or_zombie
never
parents:
1616
diff
changeset
|
1359 HandleMark hm; |
|
2a47bd84841f
6965184: possible races in make_not_entrant_or_zombie
never
parents:
1616
diff
changeset
|
1360 method()->clear_code(); |
|
2a47bd84841f
6965184: possible races in make_not_entrant_or_zombie
never
parents:
1616
diff
changeset
|
1361 } |
|
2a47bd84841f
6965184: possible races in make_not_entrant_or_zombie
never
parents:
1616
diff
changeset
|
1362 |
|
2a47bd84841f
6965184: possible races in make_not_entrant_or_zombie
never
parents:
1616
diff
changeset
|
1363 if (state == not_entrant) { |
|
2a47bd84841f
6965184: possible races in make_not_entrant_or_zombie
never
parents:
1616
diff
changeset
|
1364 mark_as_seen_on_stack(); |
|
2a47bd84841f
6965184: possible races in make_not_entrant_or_zombie
never
parents:
1616
diff
changeset
|
1365 } |
|
2a47bd84841f
6965184: possible races in make_not_entrant_or_zombie
never
parents:
1616
diff
changeset
|
1366 |
| 0 | 1367 } // leave critical region under Patching_lock |
| 1368 | |
|
1538
bfe29ec02863
6950075: nmethod sweeper should operate concurrently
never
parents:
1490
diff
changeset
|
1369 // When the nmethod becomes zombie it is no longer alive so the |
|
bfe29ec02863
6950075: nmethod sweeper should operate concurrently
never
parents:
1490
diff
changeset
|
1370 // dependencies must be flushed. nmethods in the not_entrant |
|
bfe29ec02863
6950075: nmethod sweeper should operate concurrently
never
parents:
1490
diff
changeset
|
1371 // state will be flushed later when the transition to zombie |
|
bfe29ec02863
6950075: nmethod sweeper should operate concurrently
never
parents:
1490
diff
changeset
|
1372 // happens or they get unloaded. |
|
bfe29ec02863
6950075: nmethod sweeper should operate concurrently
never
parents:
1490
diff
changeset
|
1373 if (state == zombie) { |
| 1726 | 1374 { |
| 1375 // Flushing dependecies must be done before any possible | |
| 1376 // safepoint can sneak in, otherwise the oops used by the | |
| 1377 // dependency logic could have become stale. | |
| 1378 MutexLockerEx mu(CodeCache_lock, Mutex::_no_safepoint_check_flag); | |
| 1379 flush_dependencies(NULL); | |
| 1380 } | |
|
1644
2a47bd84841f
6965184: possible races in make_not_entrant_or_zombie
never
parents:
1616
diff
changeset
|
1381 |
| 1726 | 1382 { |
| 1383 // zombie only - if a JVMTI agent has enabled the CompiledMethodUnload event | |
| 1384 // and it hasn't already been reported for this nmethod then report it now. | |
| 1385 // (the event may have been reported earilier if the GC marked it for unloading). | |
| 1386 Pause_No_Safepoint_Verifier pnsv(&nsv); | |
| 1387 post_compiled_method_unload(); | |
| 1388 } | |
| 1389 | |
| 1390 #ifdef ASSERT | |
| 1391 // It's no longer safe to access the oops section since zombie | |
| 1392 // nmethods aren't scanned for GC. | |
| 1393 _oops_are_stale = true; | |
| 1394 #endif | |
|
1538
bfe29ec02863
6950075: nmethod sweeper should operate concurrently
never
parents:
1490
diff
changeset
|
1395 } else { |
|
bfe29ec02863
6950075: nmethod sweeper should operate concurrently
never
parents:
1490
diff
changeset
|
1396 assert(state == not_entrant, "other cases may need to be handled differently"); |
|
bfe29ec02863
6950075: nmethod sweeper should operate concurrently
never
parents:
1490
diff
changeset
|
1397 } |
|
bfe29ec02863
6950075: nmethod sweeper should operate concurrently
never
parents:
1490
diff
changeset
|
1398 |
| 0 | 1399 if (TraceCreateZombies) { |
| 1400 tty->print_cr("nmethod <" INTPTR_FORMAT "> code made %s", this, (state == not_entrant) ? "not entrant" : "zombie"); | |
| 1401 } | |
| 1402 | |
| 1403 // Make sweeper aware that there is a zombie method that needs to be removed | |
| 1404 NMethodSweeper::notify(this); | |
| 1405 | |
|
1109
032260830071
5057818: codecache full and compiler disabled in bigapps fastdebug run
never
parents:
994
diff
changeset
|
1406 return true; |
| 0 | 1407 } |
| 1408 | |
| 1409 void nmethod::flush() { | |
| 1410 // Note that there are no valid oops in the nmethod anymore. | |
| 1411 assert(is_zombie() || (is_osr_method() && is_unloaded()), "must be a zombie method"); | |
| 1412 assert(is_marked_for_reclamation() || (is_osr_method() && is_unloaded()), "must be marked for reclamation"); | |
| 1413 | |
| 1414 assert (!is_locked_by_vm(), "locked methods shouldn't be flushed"); | |
|
1538
bfe29ec02863
6950075: nmethod sweeper should operate concurrently
never
parents:
1490
diff
changeset
|
1415 assert_locked_or_safepoint(CodeCache_lock); |
| 0 | 1416 |
| 1417 // completely deallocate this method | |
| 1418 EventMark m("flushing nmethod " INTPTR_FORMAT " %s", this, ""); | |
| 1419 if (PrintMethodFlushing) { | |
| 1202 | 1420 tty->print_cr("*flushing nmethod %3d/" INTPTR_FORMAT ". Live blobs:" UINT32_FORMAT "/Free CodeCache:" SIZE_FORMAT "Kb", |
| 1421 _compile_id, this, CodeCache::nof_blobs(), CodeCache::unallocated_capacity()/1024); | |
| 0 | 1422 } |
| 1423 | |
| 1424 // We need to deallocate any ExceptionCache data. | |
| 1425 // Note that we do not need to grab the nmethod lock for this, it | |
| 1426 // better be thread safe if we're disposing of it! | |
| 1427 ExceptionCache* ec = exception_cache(); | |
| 1428 set_exception_cache(NULL); | |
| 1429 while(ec != NULL) { | |
| 1430 ExceptionCache* next = ec->next(); | |
| 1431 delete ec; | |
| 1432 ec = next; | |
| 1433 } | |
| 1434 | |
|
989
148e5441d916
6863023: need non-perm oops in code cache for JSR 292
jrose
parents:
931
diff
changeset
|
1435 if (on_scavenge_root_list()) { |
|
148e5441d916
6863023: need non-perm oops in code cache for JSR 292
jrose
parents:
931
diff
changeset
|
1436 CodeCache::drop_scavenge_root_nmethod(this); |
|
148e5441d916
6863023: need non-perm oops in code cache for JSR 292
jrose
parents:
931
diff
changeset
|
1437 } |
|
148e5441d916
6863023: need non-perm oops in code cache for JSR 292
jrose
parents:
931
diff
changeset
|
1438 |
| 1202 | 1439 if (is_speculatively_disconnected()) { |
| 1440 CodeCache::remove_saved_code(this); | |
| 1441 } | |
| 1442 | |
| 1692 | 1443 #ifdef SHARK |
|
1845
a222fcfba398
6990549: Zero and Shark fixes after 6978355 and 6953144
twisti
parents:
1784
diff
changeset
|
1444 ((SharkCompiler *) compiler())->free_compiled_method(insts_begin()); |
| 1692 | 1445 #endif // SHARK |
| 1446 | |
| 0 | 1447 ((CodeBlob*)(this))->flush(); |
| 1448 | |
| 1449 CodeCache::free(this); | |
| 1450 } | |
| 1451 | |
| 1452 | |
| 1453 // | |
| 1454 // Notify all classes this nmethod is dependent on that it is no | |
| 1455 // longer dependent. This should only be called in two situations. | |
| 1456 // First, when a nmethod transitions to a zombie all dependents need | |
| 1457 // to be clear. Since zombification happens at a safepoint there's no | |
| 1458 // synchronization issues. The second place is a little more tricky. | |
| 1459 // During phase 1 of mark sweep class unloading may happen and as a | |
| 1460 // result some nmethods may get unloaded. In this case the flushing | |
| 1461 // of dependencies must happen during phase 1 since after GC any | |
| 1462 // dependencies in the unloaded nmethod won't be updated, so | |
| 1463 // traversing the dependency information in unsafe. In that case this | |
| 1464 // function is called with a non-NULL argument and this function only | |
| 1465 // notifies instanceKlasses that are reachable | |
| 1466 | |
| 1467 void nmethod::flush_dependencies(BoolObjectClosure* is_alive) { | |
|
1538
bfe29ec02863
6950075: nmethod sweeper should operate concurrently
never
parents:
1490
diff
changeset
|
1468 assert_locked_or_safepoint(CodeCache_lock); |
| 0 | 1469 assert(Universe::heap()->is_gc_active() == (is_alive != NULL), |
| 1470 "is_alive is non-NULL if and only if we are called during GC"); | |
| 1471 if (!has_flushed_dependencies()) { | |
| 1472 set_has_flushed_dependencies(); | |
| 1473 for (Dependencies::DepStream deps(this); deps.next(); ) { | |
| 1474 klassOop klass = deps.context_type(); | |
| 1475 if (klass == NULL) continue; // ignore things like evol_method | |
| 1476 | |
| 1477 // During GC the is_alive closure is non-NULL, and is used to | |
| 1478 // determine liveness of dependees that need to be updated. | |
| 1479 if (is_alive == NULL || is_alive->do_object_b(klass)) { | |
| 1480 instanceKlass::cast(klass)->remove_dependent_nmethod(this); | |
| 1481 } | |
| 1482 } | |
| 1483 } | |
| 1484 } | |
| 1485 | |
| 1486 | |
| 1487 // If this oop is not live, the nmethod can be unloaded. | |
| 1488 bool nmethod::can_unload(BoolObjectClosure* is_alive, | |
| 1489 OopClosure* keep_alive, | |
| 1490 oop* root, bool unloading_occurred) { | |
| 1491 assert(root != NULL, "just checking"); | |
| 1492 oop obj = *root; | |
| 1493 if (obj == NULL || is_alive->do_object_b(obj)) { | |
| 1494 return false; | |
| 1495 } | |
| 1496 if (obj->is_compiledICHolder()) { | |
| 1497 compiledICHolderOop cichk_oop = compiledICHolderOop(obj); | |
| 1498 if (is_alive->do_object_b( | |
| 1499 cichk_oop->holder_method()->method_holder()) && | |
| 1500 is_alive->do_object_b(cichk_oop->holder_klass())) { | |
| 1501 // The oop should be kept alive | |
| 1502 keep_alive->do_oop(root); | |
| 1503 return false; | |
| 1504 } | |
| 1505 } | |
|
989
148e5441d916
6863023: need non-perm oops in code cache for JSR 292
jrose
parents:
931
diff
changeset
|
1506 // If ScavengeRootsInCode is true, an nmethod might be unloaded |
|
148e5441d916
6863023: need non-perm oops in code cache for JSR 292
jrose
parents:
931
diff
changeset
|
1507 // simply because one of its constant oops has gone dead. |
|
148e5441d916
6863023: need non-perm oops in code cache for JSR 292
jrose
parents:
931
diff
changeset
|
1508 // No actual classes need to be unloaded in order for this to occur. |
|
148e5441d916
6863023: need non-perm oops in code cache for JSR 292
jrose
parents:
931
diff
changeset
|
1509 assert(unloading_occurred || ScavengeRootsInCode, "Inconsistency in unloading"); |
| 0 | 1510 make_unloaded(is_alive, obj); |
| 1511 return true; | |
| 1512 } | |
| 1513 | |
| 1514 // ------------------------------------------------------------------ | |
| 1515 // post_compiled_method_load_event | |
| 1516 // new method for install_code() path | |
| 1517 // Transfer information from compilation to jvmti | |
| 1518 void nmethod::post_compiled_method_load_event() { | |
| 1519 | |
| 1520 methodOop moop = method(); | |
| 1521 HS_DTRACE_PROBE8(hotspot, compiled__method__load, | |
| 1522 moop->klass_name()->bytes(), | |
| 1523 moop->klass_name()->utf8_length(), | |
| 1524 moop->name()->bytes(), | |
| 1525 moop->name()->utf8_length(), | |
| 1526 moop->signature()->bytes(), | |
| 1527 moop->signature()->utf8_length(), | |
| 1748 | 1528 insts_begin(), insts_size()); |
| 0 | 1529 |
|
1616
38e8278318ca
6656830: assert((*p)->is_oop(),"expected an oop while scanning weak refs")
never
parents:
1602
diff
changeset
|
1530 if (JvmtiExport::should_post_compiled_method_load() || |
|
38e8278318ca
6656830: assert((*p)->is_oop(),"expected an oop while scanning weak refs")
never
parents:
1602
diff
changeset
|
1531 JvmtiExport::should_post_compiled_method_unload()) { |
|
38e8278318ca
6656830: assert((*p)->is_oop(),"expected an oop while scanning weak refs")
never
parents:
1602
diff
changeset
|
1532 get_and_cache_jmethod_id(); |
|
38e8278318ca
6656830: assert((*p)->is_oop(),"expected an oop while scanning weak refs")
never
parents:
1602
diff
changeset
|
1533 } |
|
38e8278318ca
6656830: assert((*p)->is_oop(),"expected an oop while scanning weak refs")
never
parents:
1602
diff
changeset
|
1534 |
| 0 | 1535 if (JvmtiExport::should_post_compiled_method_load()) { |
| 1536 JvmtiExport::post_compiled_method_load(this); | |
| 1537 } | |
| 1538 } | |
| 1539 | |
|
1616
38e8278318ca
6656830: assert((*p)->is_oop(),"expected an oop while scanning weak refs")
never
parents:
1602
diff
changeset
|
1540 jmethodID nmethod::get_and_cache_jmethod_id() { |
|
38e8278318ca
6656830: assert((*p)->is_oop(),"expected an oop while scanning weak refs")
never
parents:
1602
diff
changeset
|
1541 if (_jmethod_id == NULL) { |
|
38e8278318ca
6656830: assert((*p)->is_oop(),"expected an oop while scanning weak refs")
never
parents:
1602
diff
changeset
|
1542 // Cache the jmethod_id since it can no longer be looked up once the |
|
38e8278318ca
6656830: assert((*p)->is_oop(),"expected an oop while scanning weak refs")
never
parents:
1602
diff
changeset
|
1543 // method itself has been marked for unloading. |
|
38e8278318ca
6656830: assert((*p)->is_oop(),"expected an oop while scanning weak refs")
never
parents:
1602
diff
changeset
|
1544 _jmethod_id = method()->jmethod_id(); |
|
38e8278318ca
6656830: assert((*p)->is_oop(),"expected an oop while scanning weak refs")
never
parents:
1602
diff
changeset
|
1545 } |
|
38e8278318ca
6656830: assert((*p)->is_oop(),"expected an oop while scanning weak refs")
never
parents:
1602
diff
changeset
|
1546 return _jmethod_id; |
|
38e8278318ca
6656830: assert((*p)->is_oop(),"expected an oop while scanning weak refs")
never
parents:
1602
diff
changeset
|
1547 } |
|
38e8278318ca
6656830: assert((*p)->is_oop(),"expected an oop while scanning weak refs")
never
parents:
1602
diff
changeset
|
1548 |
| 0 | 1549 void nmethod::post_compiled_method_unload() { |
|
1577
852d0157c696
6956931: assert(SafepointSynchronize::is_at_safepoint()) failed: must be executed at a safepoint
never
parents:
1563
diff
changeset
|
1550 if (unload_reported()) { |
|
852d0157c696
6956931: assert(SafepointSynchronize::is_at_safepoint()) failed: must be executed at a safepoint
never
parents:
1563
diff
changeset
|
1551 // During unloading we transition to unloaded and then to zombie |
|
852d0157c696
6956931: assert(SafepointSynchronize::is_at_safepoint()) failed: must be executed at a safepoint
never
parents:
1563
diff
changeset
|
1552 // and the unloading is reported during the first transition. |
|
852d0157c696
6956931: assert(SafepointSynchronize::is_at_safepoint()) failed: must be executed at a safepoint
never
parents:
1563
diff
changeset
|
1553 return; |
|
852d0157c696
6956931: assert(SafepointSynchronize::is_at_safepoint()) failed: must be executed at a safepoint
never
parents:
1563
diff
changeset
|
1554 } |
|
852d0157c696
6956931: assert(SafepointSynchronize::is_at_safepoint()) failed: must be executed at a safepoint
never
parents:
1563
diff
changeset
|
1555 |
| 0 | 1556 assert(_method != NULL && !is_unloaded(), "just checking"); |
| 1557 DTRACE_METHOD_UNLOAD_PROBE(method()); | |
| 1558 | |
| 1559 // If a JVMTI agent has enabled the CompiledMethodUnload event then | |
|
1616
38e8278318ca
6656830: assert((*p)->is_oop(),"expected an oop while scanning weak refs")
never
parents:
1602
diff
changeset
|
1560 // post the event. Sometime later this nmethod will be made a zombie |
|
38e8278318ca
6656830: assert((*p)->is_oop(),"expected an oop while scanning weak refs")
never
parents:
1602
diff
changeset
|
1561 // by the sweeper but the methodOop will not be valid at that point. |
|
38e8278318ca
6656830: assert((*p)->is_oop(),"expected an oop while scanning weak refs")
never
parents:
1602
diff
changeset
|
1562 // If the _jmethod_id is null then no load event was ever requested |
|
38e8278318ca
6656830: assert((*p)->is_oop(),"expected an oop while scanning weak refs")
never
parents:
1602
diff
changeset
|
1563 // so don't bother posting the unload. The main reason for this is |
|
38e8278318ca
6656830: assert((*p)->is_oop(),"expected an oop while scanning weak refs")
never
parents:
1602
diff
changeset
|
1564 // that the jmethodID is a weak reference to the methodOop so if |
|
38e8278318ca
6656830: assert((*p)->is_oop(),"expected an oop while scanning weak refs")
never
parents:
1602
diff
changeset
|
1565 // it's being unloaded there's no way to look it up since the weak |
|
38e8278318ca
6656830: assert((*p)->is_oop(),"expected an oop while scanning weak refs")
never
parents:
1602
diff
changeset
|
1566 // ref will have been cleared. |
|
38e8278318ca
6656830: assert((*p)->is_oop(),"expected an oop while scanning weak refs")
never
parents:
1602
diff
changeset
|
1567 if (_jmethod_id != NULL && JvmtiExport::should_post_compiled_method_unload()) { |
| 0 | 1568 assert(!unload_reported(), "already unloaded"); |
| 1569 HandleMark hm; | |
| 1748 | 1570 JvmtiExport::post_compiled_method_unload(_jmethod_id, insts_begin()); |
| 0 | 1571 } |
| 1572 | |
| 1573 // The JVMTI CompiledMethodUnload event can be enabled or disabled at | |
| 1574 // any time. As the nmethod is being unloaded now we mark it has | |
| 1575 // having the unload event reported - this will ensure that we don't | |
| 1576 // attempt to report the event in the unlikely scenario where the | |
| 1577 // event is enabled at the time the nmethod is made a zombie. | |
| 1578 set_unload_reported(); | |
| 1579 } | |
| 1580 | |
| 1581 // This is called at the end of the strong tracing/marking phase of a | |
| 1582 // GC to unload an nmethod if it contains otherwise unreachable | |
| 1583 // oops. | |
| 1584 | |
| 1585 void nmethod::do_unloading(BoolObjectClosure* is_alive, | |
| 1586 OopClosure* keep_alive, bool unloading_occurred) { | |
| 1587 // Make sure the oop's ready to receive visitors | |
| 1588 assert(!is_zombie() && !is_unloaded(), | |
| 1589 "should not call follow on zombie or unloaded nmethod"); | |
| 1590 | |
| 1591 // If the method is not entrant then a JMP is plastered over the | |
| 1592 // first few bytes. If an oop in the old code was there, that oop | |
| 1593 // should not get GC'd. Skip the first few bytes of oops on | |
| 1594 // not-entrant methods. | |
| 1595 address low_boundary = verified_entry_point(); | |
| 1596 if (is_not_entrant()) { | |
| 1597 low_boundary += NativeJump::instruction_size; | |
| 1598 // %%% Note: On SPARC we patch only a 4-byte trap, not a full NativeJump. | |
| 1599 // (See comment above.) | |
| 1600 } | |
| 1601 | |
| 1602 // The RedefineClasses() API can cause the class unloading invariant | |
| 1603 // to no longer be true. See jvmtiExport.hpp for details. | |
| 1604 // Also, leave a debugging breadcrumb in local flag. | |
| 1605 bool a_class_was_redefined = JvmtiExport::has_redefined_a_class(); | |
| 1606 if (a_class_was_redefined) { | |
| 1607 // This set of the unloading_occurred flag is done before the | |
| 1608 // call to post_compiled_method_unload() so that the unloading | |
| 1609 // of this nmethod is reported. | |
| 1610 unloading_occurred = true; | |
| 1611 } | |
| 1612 | |
| 1613 // Follow methodOop | |
| 1614 if (can_unload(is_alive, keep_alive, (oop*)&_method, unloading_occurred)) { | |
| 1615 return; | |
| 1616 } | |
| 1617 | |
| 1618 // Exception cache | |
| 1619 ExceptionCache* ec = exception_cache(); | |
| 1620 while (ec != NULL) { | |
| 1621 oop* ex_addr = (oop*)ec->exception_type_addr(); | |
| 1622 oop ex = *ex_addr; | |
| 1623 ExceptionCache* next_ec = ec->next(); | |
| 1624 if (ex != NULL && !is_alive->do_object_b(ex)) { | |
| 1625 assert(!ex->is_compiledICHolder(), "Possible error here"); | |
| 1626 remove_from_exception_cache(ec); | |
| 1627 } | |
| 1628 ec = next_ec; | |
| 1629 } | |
| 1630 | |
| 1631 // If class unloading occurred we first iterate over all inline caches and | |
| 1632 // clear ICs where the cached oop is referring to an unloaded klass or method. | |
| 1633 // The remaining live cached oops will be traversed in the relocInfo::oop_type | |
| 1634 // iteration below. | |
| 1635 if (unloading_occurred) { | |
| 1636 RelocIterator iter(this, low_boundary); | |
| 1637 while(iter.next()) { | |
| 1638 if (iter.type() == relocInfo::virtual_call_type) { | |
| 1639 CompiledIC *ic = CompiledIC_at(iter.reloc()); | |
| 1640 oop ic_oop = ic->cached_oop(); | |
| 1641 if (ic_oop != NULL && !is_alive->do_object_b(ic_oop)) { | |
| 1642 // The only exception is compiledICHolder oops which may | |
| 1643 // yet be marked below. (We check this further below). | |
| 1644 if (ic_oop->is_compiledICHolder()) { | |
| 1645 compiledICHolderOop cichk_oop = compiledICHolderOop(ic_oop); | |
| 1646 if (is_alive->do_object_b( | |
| 1647 cichk_oop->holder_method()->method_holder()) && | |
| 1648 is_alive->do_object_b(cichk_oop->holder_klass())) { | |
| 1649 continue; | |
| 1650 } | |
| 1651 } | |
| 1652 ic->set_to_clean(); | |
|
1489
cff162798819
6888953: some calls to function-like macros are missing semicolons
jcoomes
parents:
1378
diff
changeset
|
1653 assert(ic->cached_oop() == NULL, |
|
cff162798819
6888953: some calls to function-like macros are missing semicolons
jcoomes
parents:
1378
diff
changeset
|
1654 "cached oop in IC should be cleared"); |
| 0 | 1655 } |
| 1656 } | |
| 1657 } | |
| 1658 } | |
| 1659 | |
| 1660 // Compiled code | |
| 1661 RelocIterator iter(this, low_boundary); | |
| 1662 while (iter.next()) { | |
| 1663 if (iter.type() == relocInfo::oop_type) { | |
| 1664 oop_Relocation* r = iter.oop_reloc(); | |
| 1665 // In this loop, we must only traverse those oops directly embedded in | |
| 1666 // the code. Other oops (oop_index>0) are seen as part of scopes_oops. | |
| 1667 assert(1 == (r->oop_is_immediate()) + | |
| 1668 (r->oop_addr() >= oops_begin() && r->oop_addr() < oops_end()), | |
| 1669 "oop must be found in exactly one place"); | |
| 1670 if (r->oop_is_immediate() && r->oop_value() != NULL) { | |
| 1671 if (can_unload(is_alive, keep_alive, r->oop_addr(), unloading_occurred)) { | |
| 1672 return; | |
| 1673 } | |
| 1674 } | |
| 1675 } | |
| 1676 } | |
| 1677 | |
| 1678 | |
| 1679 // Scopes | |
| 1680 for (oop* p = oops_begin(); p < oops_end(); p++) { | |
| 1681 if (*p == Universe::non_oop_word()) continue; // skip non-oops | |
| 1682 if (can_unload(is_alive, keep_alive, p, unloading_occurred)) { | |
| 1683 return; | |
| 1684 } | |
| 1685 } | |
| 1686 | |
| 1687 #ifndef PRODUCT | |
| 1688 // This nmethod was not unloaded; check below that all CompiledICs | |
| 1689 // refer to marked oops. | |
| 1690 { | |
| 1691 RelocIterator iter(this, low_boundary); | |
| 1692 while (iter.next()) { | |
| 1693 if (iter.type() == relocInfo::virtual_call_type) { | |
| 1694 CompiledIC *ic = CompiledIC_at(iter.reloc()); | |
| 1695 oop ic_oop = ic->cached_oop(); | |
| 1696 assert(ic_oop == NULL || is_alive->do_object_b(ic_oop), | |
| 1697 "Found unmarked ic_oop in reachable nmethod"); | |
| 1698 } | |
| 1699 } | |
| 1700 } | |
| 1701 #endif // !PRODUCT | |
| 1702 } | |
| 1703 | |
| 941 | 1704 // This method is called twice during GC -- once while |
| 1705 // tracing the "active" nmethods on thread stacks during | |
| 1706 // the (strong) marking phase, and then again when walking | |
| 1707 // the code cache contents during the weak roots processing | |
| 1708 // phase. The two uses are distinguished by means of the | |
|
994
753cf9794df9
6885169: merge of 4957990 and 6863023 causes conflict on do_nmethods
jrose
parents:
993
diff
changeset
|
1709 // 'do_strong_roots_only' flag, which is true in the first |
| 941 | 1710 // case. We want to walk the weak roots in the nmethod |
| 1711 // only in the second case. The weak roots in the nmethod | |
| 1712 // are the oops in the ExceptionCache and the InlineCache | |
| 1713 // oops. | |
|
994
753cf9794df9
6885169: merge of 4957990 and 6863023 causes conflict on do_nmethods
jrose
parents:
993
diff
changeset
|
1714 void nmethod::oops_do(OopClosure* f, bool do_strong_roots_only) { |
| 0 | 1715 // make sure the oops ready to receive visitors |
| 1716 assert(!is_zombie() && !is_unloaded(), | |
| 1717 "should not call follow on zombie or unloaded nmethod"); | |
| 1718 | |
| 1719 // If the method is not entrant or zombie then a JMP is plastered over the | |
| 1720 // first few bytes. If an oop in the old code was there, that oop | |
| 1721 // should not get GC'd. Skip the first few bytes of oops on | |
| 1722 // not-entrant methods. | |
| 1723 address low_boundary = verified_entry_point(); | |
| 1724 if (is_not_entrant()) { | |
| 1725 low_boundary += NativeJump::instruction_size; | |
| 1726 // %%% Note: On SPARC we patch only a 4-byte trap, not a full NativeJump. | |
| 1727 // (See comment above.) | |
| 1728 } | |
| 1729 | |
| 1730 // Compiled code | |
| 1731 f->do_oop((oop*) &_method); | |
|
994
753cf9794df9
6885169: merge of 4957990 and 6863023 causes conflict on do_nmethods
jrose
parents:
993
diff
changeset
|
1732 if (!do_strong_roots_only) { |
| 941 | 1733 // weak roots processing phase -- update ExceptionCache oops |
| 1734 ExceptionCache* ec = exception_cache(); | |
| 1735 while(ec != NULL) { | |
| 1736 f->do_oop((oop*)ec->exception_type_addr()); | |
| 1737 ec = ec->next(); | |
| 1738 } | |
| 1739 } // Else strong roots phase -- skip oops in ExceptionCache | |
| 0 | 1740 |
| 1741 RelocIterator iter(this, low_boundary); | |
| 941 | 1742 |
| 0 | 1743 while (iter.next()) { |
| 1744 if (iter.type() == relocInfo::oop_type ) { | |
| 1745 oop_Relocation* r = iter.oop_reloc(); | |
| 1746 // In this loop, we must only follow those oops directly embedded in | |
| 1747 // the code. Other oops (oop_index>0) are seen as part of scopes_oops. | |
| 941 | 1748 assert(1 == (r->oop_is_immediate()) + |
| 1749 (r->oop_addr() >= oops_begin() && r->oop_addr() < oops_end()), | |
| 1750 "oop must be found in exactly one place"); | |
| 0 | 1751 if (r->oop_is_immediate() && r->oop_value() != NULL) { |
| 1752 f->do_oop(r->oop_addr()); | |
| 1753 } | |
| 1754 } | |
| 1755 } | |
| 1756 | |
| 1757 // Scopes | |
|
989
148e5441d916
6863023: need non-perm oops in code cache for JSR 292
jrose
parents:
931
diff
changeset
|
1758 // This includes oop constants not inlined in the code stream. |
| 0 | 1759 for (oop* p = oops_begin(); p < oops_end(); p++) { |
| 1760 if (*p == Universe::non_oop_word()) continue; // skip non-oops | |
| 1761 f->do_oop(p); | |
| 1762 } | |
| 1763 } | |
| 1764 | |
|
989
148e5441d916
6863023: need non-perm oops in code cache for JSR 292
jrose
parents:
931
diff
changeset
|
1765 #define NMETHOD_SENTINEL ((nmethod*)badAddress) |
|
148e5441d916
6863023: need non-perm oops in code cache for JSR 292
jrose
parents:
931
diff
changeset
|
1766 |
|
148e5441d916
6863023: need non-perm oops in code cache for JSR 292
jrose
parents:
931
diff
changeset
|
1767 nmethod* volatile nmethod::_oops_do_mark_nmethods; |
|
148e5441d916
6863023: need non-perm oops in code cache for JSR 292
jrose
parents:
931
diff
changeset
|
1768 |
|
148e5441d916
6863023: need non-perm oops in code cache for JSR 292
jrose
parents:
931
diff
changeset
|
1769 // An nmethod is "marked" if its _mark_link is set non-null. |
|
148e5441d916
6863023: need non-perm oops in code cache for JSR 292
jrose
parents:
931
diff
changeset
|
1770 // Even if it is the end of the linked list, it will have a non-null link value, |
|
148e5441d916
6863023: need non-perm oops in code cache for JSR 292
jrose
parents:
931
diff
changeset
|
1771 // as long as it is on the list. |
|
148e5441d916
6863023: need non-perm oops in code cache for JSR 292
jrose
parents:
931
diff
changeset
|
1772 // This code must be MP safe, because it is used from parallel GC passes. |
|
148e5441d916
6863023: need non-perm oops in code cache for JSR 292
jrose
parents:
931
diff
changeset
|
1773 bool nmethod::test_set_oops_do_mark() { |
|
148e5441d916
6863023: need non-perm oops in code cache for JSR 292
jrose
parents:
931
diff
changeset
|
1774 assert(nmethod::oops_do_marking_is_active(), "oops_do_marking_prologue must be called"); |
|
148e5441d916
6863023: need non-perm oops in code cache for JSR 292
jrose
parents:
931
diff
changeset
|
1775 nmethod* observed_mark_link = _oops_do_mark_link; |
|
148e5441d916
6863023: need non-perm oops in code cache for JSR 292
jrose
parents:
931
diff
changeset
|
1776 if (observed_mark_link == NULL) { |
|
148e5441d916
6863023: need non-perm oops in code cache for JSR 292
jrose
parents:
931
diff
changeset
|
1777 // Claim this nmethod for this thread to mark. |
|
148e5441d916
6863023: need non-perm oops in code cache for JSR 292
jrose
parents:
931
diff
changeset
|
1778 observed_mark_link = (nmethod*) |
|
148e5441d916
6863023: need non-perm oops in code cache for JSR 292
jrose
parents:
931
diff
changeset
|
1779 Atomic::cmpxchg_ptr(NMETHOD_SENTINEL, &_oops_do_mark_link, NULL); |
|
148e5441d916
6863023: need non-perm oops in code cache for JSR 292
jrose
parents:
931
diff
changeset
|
1780 if (observed_mark_link == NULL) { |
|
148e5441d916
6863023: need non-perm oops in code cache for JSR 292
jrose
parents:
931
diff
changeset
|
1781 |
|
148e5441d916
6863023: need non-perm oops in code cache for JSR 292
jrose
parents:
931
diff
changeset
|
1782 // Atomically append this nmethod (now claimed) to the head of the list: |
|
148e5441d916
6863023: need non-perm oops in code cache for JSR 292
jrose
parents:
931
diff
changeset
|
1783 nmethod* observed_mark_nmethods = _oops_do_mark_nmethods; |
|
148e5441d916
6863023: need non-perm oops in code cache for JSR 292
jrose
parents:
931
diff
changeset
|
1784 for (;;) { |
|
148e5441d916
6863023: need non-perm oops in code cache for JSR 292
jrose
parents:
931
diff
changeset
|
1785 nmethod* required_mark_nmethods = observed_mark_nmethods; |
|
148e5441d916
6863023: need non-perm oops in code cache for JSR 292
jrose
parents:
931
diff
changeset
|
1786 _oops_do_mark_link = required_mark_nmethods; |
|
148e5441d916
6863023: need non-perm oops in code cache for JSR 292
jrose
parents:
931
diff
changeset
|
1787 observed_mark_nmethods = (nmethod*) |
|
148e5441d916
6863023: need non-perm oops in code cache for JSR 292
jrose
parents:
931
diff
changeset
|
1788 Atomic::cmpxchg_ptr(this, &_oops_do_mark_nmethods, required_mark_nmethods); |
|
148e5441d916
6863023: need non-perm oops in code cache for JSR 292
jrose
parents:
931
diff
changeset
|
1789 if (observed_mark_nmethods == required_mark_nmethods) |
|
148e5441d916
6863023: need non-perm oops in code cache for JSR 292
jrose
parents:
931
diff
changeset
|
1790 break; |
|
148e5441d916
6863023: need non-perm oops in code cache for JSR 292
jrose
parents:
931
diff
changeset
|
1791 } |
|
148e5441d916
6863023: need non-perm oops in code cache for JSR 292
jrose
parents:
931
diff
changeset
|
1792 // Mark was clear when we first saw this guy. |
|
148e5441d916
6863023: need non-perm oops in code cache for JSR 292
jrose
parents:
931
diff
changeset
|
1793 NOT_PRODUCT(if (TraceScavenge) print_on(tty, "oops_do, mark\n")); |
|
148e5441d916
6863023: need non-perm oops in code cache for JSR 292
jrose
parents:
931
diff
changeset
|
1794 return false; |
|
148e5441d916
6863023: need non-perm oops in code cache for JSR 292
jrose
parents:
931
diff
changeset
|
1795 } |
|
148e5441d916
6863023: need non-perm oops in code cache for JSR 292
jrose
parents:
931
diff
changeset
|
1796 } |
|
148e5441d916
6863023: need non-perm oops in code cache for JSR 292
jrose
parents:
931
diff
changeset
|
1797 // On fall through, another racing thread marked this nmethod before we did. |
|
148e5441d916
6863023: need non-perm oops in code cache for JSR 292
jrose
parents:
931
diff
changeset
|
1798 return true; |
|
148e5441d916
6863023: need non-perm oops in code cache for JSR 292
jrose
parents:
931
diff
changeset
|
1799 } |
|
148e5441d916
6863023: need non-perm oops in code cache for JSR 292
jrose
parents:
931
diff
changeset
|
1800 |
|
148e5441d916
6863023: need non-perm oops in code cache for JSR 292
jrose
parents:
931
diff
changeset
|
1801 void nmethod::oops_do_marking_prologue() { |
|
148e5441d916
6863023: need non-perm oops in code cache for JSR 292
jrose
parents:
931
diff
changeset
|
1802 NOT_PRODUCT(if (TraceScavenge) tty->print_cr("[oops_do_marking_prologue")); |
|
148e5441d916
6863023: need non-perm oops in code cache for JSR 292
jrose
parents:
931
diff
changeset
|
1803 assert(_oops_do_mark_nmethods == NULL, "must not call oops_do_marking_prologue twice in a row"); |
|
148e5441d916
6863023: need non-perm oops in code cache for JSR 292
jrose
parents:
931
diff
changeset
|
1804 // We use cmpxchg_ptr instead of regular assignment here because the user |
|
148e5441d916
6863023: need non-perm oops in code cache for JSR 292
jrose
parents:
931
diff
changeset
|
1805 // may fork a bunch of threads, and we need them all to see the same state. |
|
148e5441d916
6863023: need non-perm oops in code cache for JSR 292
jrose
parents:
931
diff
changeset
|
1806 void* observed = Atomic::cmpxchg_ptr(NMETHOD_SENTINEL, &_oops_do_mark_nmethods, NULL); |
|
148e5441d916
6863023: need non-perm oops in code cache for JSR 292
jrose
parents:
931
diff
changeset
|
1807 guarantee(observed == NULL, "no races in this sequential code"); |
|
148e5441d916
6863023: need non-perm oops in code cache for JSR 292
jrose
parents:
931
diff
changeset
|
1808 } |
|
148e5441d916
6863023: need non-perm oops in code cache for JSR 292
jrose
parents:
931
diff
changeset
|
1809 |
|
148e5441d916
6863023: need non-perm oops in code cache for JSR 292
jrose
parents:
931
diff
changeset
|
1810 void nmethod::oops_do_marking_epilogue() { |
|
148e5441d916
6863023: need non-perm oops in code cache for JSR 292
jrose
parents:
931
diff
changeset
|
1811 assert(_oops_do_mark_nmethods != NULL, "must not call oops_do_marking_epilogue twice in a row"); |
|
148e5441d916
6863023: need non-perm oops in code cache for JSR 292
jrose
parents:
931
diff
changeset
|
1812 nmethod* cur = _oops_do_mark_nmethods; |
|
148e5441d916
6863023: need non-perm oops in code cache for JSR 292
jrose
parents:
931
diff
changeset
|
1813 while (cur != NMETHOD_SENTINEL) { |
|
148e5441d916
6863023: need non-perm oops in code cache for JSR 292
jrose
parents:
931
diff
changeset
|
1814 assert(cur != NULL, "not NULL-terminated"); |
|
148e5441d916
6863023: need non-perm oops in code cache for JSR 292
jrose
parents:
931
diff
changeset
|
1815 nmethod* next = cur->_oops_do_mark_link; |
|
148e5441d916
6863023: need non-perm oops in code cache for JSR 292
jrose
parents:
931
diff
changeset
|
1816 cur->_oops_do_mark_link = NULL; |
|
148e5441d916
6863023: need non-perm oops in code cache for JSR 292
jrose
parents:
931
diff
changeset
|
1817 NOT_PRODUCT(if (TraceScavenge) cur->print_on(tty, "oops_do, unmark\n")); |
|
148e5441d916
6863023: need non-perm oops in code cache for JSR 292
jrose
parents:
931
diff
changeset
|
1818 cur = next; |
|
148e5441d916
6863023: need non-perm oops in code cache for JSR 292
jrose
parents:
931
diff
changeset
|
1819 } |
|
148e5441d916
6863023: need non-perm oops in code cache for JSR 292
jrose
parents:
931
diff
changeset
|
1820 void* required = _oops_do_mark_nmethods; |
|
148e5441d916
6863023: need non-perm oops in code cache for JSR 292
jrose
parents:
931
diff
changeset
|
1821 void* observed = Atomic::cmpxchg_ptr(NULL, &_oops_do_mark_nmethods, required); |
|
148e5441d916
6863023: need non-perm oops in code cache for JSR 292
jrose
parents:
931
diff
changeset
|
1822 guarantee(observed == required, "no races in this sequential code"); |
|
148e5441d916
6863023: need non-perm oops in code cache for JSR 292
jrose
parents:
931
diff
changeset
|
1823 NOT_PRODUCT(if (TraceScavenge) tty->print_cr("oops_do_marking_epilogue]")); |
|
148e5441d916
6863023: need non-perm oops in code cache for JSR 292
jrose
parents:
931
diff
changeset
|
1824 } |
|
148e5441d916
6863023: need non-perm oops in code cache for JSR 292
jrose
parents:
931
diff
changeset
|
1825 |
|
148e5441d916
6863023: need non-perm oops in code cache for JSR 292
jrose
parents:
931
diff
changeset
|
1826 class DetectScavengeRoot: public OopClosure { |
|
148e5441d916
6863023: need non-perm oops in code cache for JSR 292
jrose
parents:
931
diff
changeset
|
1827 bool _detected_scavenge_root; |
|
148e5441d916
6863023: need non-perm oops in code cache for JSR 292
jrose
parents:
931
diff
changeset
|
1828 public: |
|
148e5441d916
6863023: need non-perm oops in code cache for JSR 292
jrose
parents:
931
diff
changeset
|
1829 DetectScavengeRoot() : _detected_scavenge_root(false) |
|
148e5441d916
6863023: need non-perm oops in code cache for JSR 292
jrose
parents:
931
diff
changeset
|
1830 { NOT_PRODUCT(_print_nm = NULL); } |
|
148e5441d916
6863023: need non-perm oops in code cache for JSR 292
jrose
parents:
931
diff
changeset
|
1831 bool detected_scavenge_root() { return _detected_scavenge_root; } |
|
148e5441d916
6863023: need non-perm oops in code cache for JSR 292
jrose
parents:
931
diff
changeset
|
1832 virtual void do_oop(oop* p) { |
|
148e5441d916
6863023: need non-perm oops in code cache for JSR 292
jrose
parents:
931
diff
changeset
|
1833 if ((*p) != NULL && (*p)->is_scavengable()) { |
|
148e5441d916
6863023: need non-perm oops in code cache for JSR 292
jrose
parents:
931
diff
changeset
|
1834 NOT_PRODUCT(maybe_print(p)); |
|
148e5441d916
6863023: need non-perm oops in code cache for JSR 292
jrose
parents:
931
diff
changeset
|
1835 _detected_scavenge_root = true; |
|
148e5441d916
6863023: need non-perm oops in code cache for JSR 292
jrose
parents:
931
diff
changeset
|
1836 } |
|
148e5441d916
6863023: need non-perm oops in code cache for JSR 292
jrose
parents:
931
diff
changeset
|
1837 } |
|
148e5441d916
6863023: need non-perm oops in code cache for JSR 292
jrose
parents:
931
diff
changeset
|
1838 virtual void do_oop(narrowOop* p) { ShouldNotReachHere(); } |
|
148e5441d916
6863023: need non-perm oops in code cache for JSR 292
jrose
parents:
931
diff
changeset
|
1839 |
|
148e5441d916
6863023: need non-perm oops in code cache for JSR 292
jrose
parents:
931
diff
changeset
|
1840 #ifndef PRODUCT |
|
148e5441d916
6863023: need non-perm oops in code cache for JSR 292
jrose
parents:
931
diff
changeset
|
1841 nmethod* _print_nm; |
|
148e5441d916
6863023: need non-perm oops in code cache for JSR 292
jrose
parents:
931
diff
changeset
|
1842 void maybe_print(oop* p) { |
|
148e5441d916
6863023: need non-perm oops in code cache for JSR 292
jrose
parents:
931
diff
changeset
|
1843 if (_print_nm == NULL) return; |
|
148e5441d916
6863023: need non-perm oops in code cache for JSR 292
jrose
parents:
931
diff
changeset
|
1844 if (!_detected_scavenge_root) _print_nm->print_on(tty, "new scavenge root"); |
|
148e5441d916
6863023: need non-perm oops in code cache for JSR 292
jrose
parents:
931
diff
changeset
|
1845 tty->print_cr(""PTR_FORMAT"[offset=%d] detected non-perm oop "PTR_FORMAT" (found at "PTR_FORMAT")", |
|
148e5441d916
6863023: need non-perm oops in code cache for JSR 292
jrose
parents:
931
diff
changeset
|
1846 _print_nm, (int)((intptr_t)p - (intptr_t)_print_nm), |
|
148e5441d916
6863023: need non-perm oops in code cache for JSR 292
jrose
parents:
931
diff
changeset
|
1847 (intptr_t)(*p), (intptr_t)p); |
|
148e5441d916
6863023: need non-perm oops in code cache for JSR 292
jrose
parents:
931
diff
changeset
|
1848 (*p)->print(); |
|
148e5441d916
6863023: need non-perm oops in code cache for JSR 292
jrose
parents:
931
diff
changeset
|
1849 } |
|
148e5441d916
6863023: need non-perm oops in code cache for JSR 292
jrose
parents:
931
diff
changeset
|
1850 #endif //PRODUCT |
|
148e5441d916
6863023: need non-perm oops in code cache for JSR 292
jrose
parents:
931
diff
changeset
|
1851 }; |
|
148e5441d916
6863023: need non-perm oops in code cache for JSR 292
jrose
parents:
931
diff
changeset
|
1852 |
|
148e5441d916
6863023: need non-perm oops in code cache for JSR 292
jrose
parents:
931
diff
changeset
|
1853 bool nmethod::detect_scavenge_root_oops() { |
|
148e5441d916
6863023: need non-perm oops in code cache for JSR 292
jrose
parents:
931
diff
changeset
|
1854 DetectScavengeRoot detect_scavenge_root; |
|
148e5441d916
6863023: need non-perm oops in code cache for JSR 292
jrose
parents:
931
diff
changeset
|
1855 NOT_PRODUCT(if (TraceScavenge) detect_scavenge_root._print_nm = this); |
|
148e5441d916
6863023: need non-perm oops in code cache for JSR 292
jrose
parents:
931
diff
changeset
|
1856 oops_do(&detect_scavenge_root); |
|
148e5441d916
6863023: need non-perm oops in code cache for JSR 292
jrose
parents:
931
diff
changeset
|
1857 return detect_scavenge_root.detected_scavenge_root(); |
|
148e5441d916
6863023: need non-perm oops in code cache for JSR 292
jrose
parents:
931
diff
changeset
|
1858 } |
|
148e5441d916
6863023: need non-perm oops in code cache for JSR 292
jrose
parents:
931
diff
changeset
|
1859 |
| 0 | 1860 // Method that knows how to preserve outgoing arguments at call. This method must be |
| 1861 // called with a frame corresponding to a Java invoke | |
| 1862 void nmethod::preserve_callee_argument_oops(frame fr, const RegisterMap *reg_map, OopClosure* f) { | |
| 1692 | 1863 #ifndef SHARK |
| 0 | 1864 if (!method()->is_native()) { |
| 1865 SimpleScopeDesc ssd(this, fr.pc()); | |
| 2142 | 1866 Bytecode_invoke call(ssd.method(), ssd.bci()); |
| 1867 bool has_receiver = call.has_receiver(); | |
| 1868 symbolOop signature = call.signature(); | |
|
1138
dd57230ba8fe
6893268: additional dynamic language related optimizations in C2
twisti
parents:
1135
diff
changeset
|
1869 fr.oops_compiled_arguments_do(signature, has_receiver, reg_map, f); |
| 0 | 1870 } |
| 1692 | 1871 #endif // !SHARK |
| 0 | 1872 } |
| 1873 | |
| 1874 | |
| 1875 oop nmethod::embeddedOop_at(u_char* p) { | |
| 1876 RelocIterator iter(this, p, p + oopSize); | |
| 1877 while (iter.next()) | |
| 1878 if (iter.type() == relocInfo::oop_type) { | |
| 1879 return iter.oop_reloc()->oop_value(); | |
| 1880 } | |
| 1881 return NULL; | |
| 1882 } | |
| 1883 | |
| 1884 | |
| 1885 inline bool includes(void* p, void* from, void* to) { | |
| 1886 return from <= p && p < to; | |
| 1887 } | |
| 1888 | |
| 1889 | |
| 1890 void nmethod::copy_scopes_pcs(PcDesc* pcs, int count) { | |
| 1891 assert(count >= 2, "must be sentinel values, at least"); | |
| 1892 | |
| 1893 #ifdef ASSERT | |
| 1894 // must be sorted and unique; we do a binary search in find_pc_desc() | |
| 1895 int prev_offset = pcs[0].pc_offset(); | |
| 1896 assert(prev_offset == PcDesc::lower_offset_limit, | |
| 1897 "must start with a sentinel"); | |
| 1898 for (int i = 1; i < count; i++) { | |
| 1899 int this_offset = pcs[i].pc_offset(); | |
| 1900 assert(this_offset > prev_offset, "offsets must be sorted"); | |
| 1901 prev_offset = this_offset; | |
| 1902 } | |
| 1903 assert(prev_offset == PcDesc::upper_offset_limit, | |
| 1904 "must end with a sentinel"); | |
| 1905 #endif //ASSERT | |
| 1906 | |
|
1135
e66fd840cb6b
6893081: method handle & invokedynamic code needs additional cleanup (post 6815692, 6858164)
twisti
parents:
1109
diff
changeset
|
1907 // Search for MethodHandle invokes and tag the nmethod. |
|
e66fd840cb6b
6893081: method handle & invokedynamic code needs additional cleanup (post 6815692, 6858164)
twisti
parents:
1109
diff
changeset
|
1908 for (int i = 0; i < count; i++) { |
|
e66fd840cb6b
6893081: method handle & invokedynamic code needs additional cleanup (post 6815692, 6858164)
twisti
parents:
1109
diff
changeset
|
1909 if (pcs[i].is_method_handle_invoke()) { |
|
e66fd840cb6b
6893081: method handle & invokedynamic code needs additional cleanup (post 6815692, 6858164)
twisti
parents:
1109
diff
changeset
|
1910 set_has_method_handle_invokes(true); |
|
e66fd840cb6b
6893081: method handle & invokedynamic code needs additional cleanup (post 6815692, 6858164)
twisti
parents:
1109
diff
changeset
|
1911 break; |
|
e66fd840cb6b
6893081: method handle & invokedynamic code needs additional cleanup (post 6815692, 6858164)
twisti
parents:
1109
diff
changeset
|
1912 } |
|
e66fd840cb6b
6893081: method handle & invokedynamic code needs additional cleanup (post 6815692, 6858164)
twisti
parents:
1109
diff
changeset
|
1913 } |
|
2083
7d9caaedafce
6990933: assert(sender_cb) failed: sanity in frame::sender_for_interpreter_frame
twisti
parents:
1972
diff
changeset
|
1914 assert(has_method_handle_invokes() == (_deoptimize_mh_offset != -1), "must have deopt mh handler"); |
|
1135
e66fd840cb6b
6893081: method handle & invokedynamic code needs additional cleanup (post 6815692, 6858164)
twisti
parents:
1109
diff
changeset
|
1915 |
| 0 | 1916 int size = count * sizeof(PcDesc); |
| 1917 assert(scopes_pcs_size() >= size, "oob"); | |
| 1918 memcpy(scopes_pcs_begin(), pcs, size); | |
| 1919 | |
| 1920 // Adjust the final sentinel downward. | |
| 1921 PcDesc* last_pc = &scopes_pcs_begin()[count-1]; | |
| 1922 assert(last_pc->pc_offset() == PcDesc::upper_offset_limit, "sanity"); | |
| 1748 | 1923 last_pc->set_pc_offset(content_size() + 1); |
| 0 | 1924 for (; last_pc + 1 < scopes_pcs_end(); last_pc += 1) { |
| 1925 // Fill any rounding gaps with copies of the last record. | |
| 1926 last_pc[1] = last_pc[0]; | |
| 1927 } | |
| 1928 // The following assert could fail if sizeof(PcDesc) is not | |
| 1929 // an integral multiple of oopSize (the rounding term). | |
| 1930 // If it fails, change the logic to always allocate a multiple | |
| 1931 // of sizeof(PcDesc), and fill unused words with copies of *last_pc. | |
| 1932 assert(last_pc + 1 == scopes_pcs_end(), "must match exactly"); | |
| 1933 } | |
| 1934 | |
| 1935 void nmethod::copy_scopes_data(u_char* buffer, int size) { | |
| 1936 assert(scopes_data_size() >= size, "oob"); | |
| 1937 memcpy(scopes_data_begin(), buffer, size); | |
| 1938 } | |
| 1939 | |
| 1940 | |
| 1941 #ifdef ASSERT | |
| 1942 static PcDesc* linear_search(nmethod* nm, int pc_offset, bool approximate) { | |
| 1943 PcDesc* lower = nm->scopes_pcs_begin(); | |
| 1944 PcDesc* upper = nm->scopes_pcs_end(); | |
| 1945 lower += 1; // exclude initial sentinel | |
| 1946 PcDesc* res = NULL; | |
| 1947 for (PcDesc* p = lower; p < upper; p++) { | |
| 1948 NOT_PRODUCT(--nmethod_stats.pc_desc_tests); // don't count this call to match_desc | |
| 1949 if (match_desc(p, pc_offset, approximate)) { | |
| 1950 if (res == NULL) | |
| 1951 res = p; | |
| 1952 else | |
| 1953 res = (PcDesc*) badAddress; | |
| 1954 } | |
| 1955 } | |
| 1956 return res; | |
| 1957 } | |
| 1958 #endif | |
| 1959 | |
| 1960 | |
| 1961 // Finds a PcDesc with real-pc equal to "pc" | |
| 1962 PcDesc* nmethod::find_pc_desc_internal(address pc, bool approximate) { | |
| 1748 | 1963 address base_address = code_begin(); |
| 0 | 1964 if ((pc < base_address) || |
| 1965 (pc - base_address) >= (ptrdiff_t) PcDesc::upper_offset_limit) { | |
| 1966 return NULL; // PC is wildly out of range | |
| 1967 } | |
| 1968 int pc_offset = (int) (pc - base_address); | |
| 1969 | |
| 1970 // Check the PcDesc cache if it contains the desired PcDesc | |
| 1971 // (This as an almost 100% hit rate.) | |
| 1972 PcDesc* res = _pc_desc_cache.find_pc_desc(pc_offset, approximate); | |
| 1973 if (res != NULL) { | |
| 1974 assert(res == linear_search(this, pc_offset, approximate), "cache ok"); | |
| 1975 return res; | |
| 1976 } | |
| 1977 | |
| 1978 // Fallback algorithm: quasi-linear search for the PcDesc | |
| 1979 // Find the last pc_offset less than the given offset. | |
| 1980 // The successor must be the required match, if there is a match at all. | |
| 1981 // (Use a fixed radix to avoid expensive affine pointer arithmetic.) | |
| 1982 PcDesc* lower = scopes_pcs_begin(); | |
| 1983 PcDesc* upper = scopes_pcs_end(); | |
| 1984 upper -= 1; // exclude final sentinel | |
| 1985 if (lower >= upper) return NULL; // native method; no PcDescs at all | |
| 1986 | |
| 1987 #define assert_LU_OK \ | |
| 1988 /* invariant on lower..upper during the following search: */ \ | |
| 1989 assert(lower->pc_offset() < pc_offset, "sanity"); \ | |
| 1990 assert(upper->pc_offset() >= pc_offset, "sanity") | |
| 1991 assert_LU_OK; | |
| 1992 | |
| 1993 // Use the last successful return as a split point. | |
| 1994 PcDesc* mid = _pc_desc_cache.last_pc_desc(); | |
| 1995 NOT_PRODUCT(++nmethod_stats.pc_desc_searches); | |
| 1996 if (mid->pc_offset() < pc_offset) { | |
| 1997 lower = mid; | |
| 1998 } else { | |
| 1999 upper = mid; | |
| 2000 } | |
| 2001 | |
| 2002 // Take giant steps at first (4096, then 256, then 16, then 1) | |
| 2003 const int LOG2_RADIX = 4 /*smaller steps in debug mode:*/ debug_only(-1); | |
| 2004 const int RADIX = (1 << LOG2_RADIX); | |
| 2005 for (int step = (1 << (LOG2_RADIX*3)); step > 1; step >>= LOG2_RADIX) { | |
| 2006 while ((mid = lower + step) < upper) { | |
| 2007 assert_LU_OK; | |
| 2008 NOT_PRODUCT(++nmethod_stats.pc_desc_searches); | |
| 2009 if (mid->pc_offset() < pc_offset) { | |
| 2010 lower = mid; | |
| 2011 } else { | |
| 2012 upper = mid; | |
| 2013 break; | |
| 2014 } | |
| 2015 } | |
| 2016 assert_LU_OK; | |
| 2017 } | |
| 2018 | |
| 2019 // Sneak up on the value with a linear search of length ~16. | |
| 2020 while (true) { | |
| 2021 assert_LU_OK; | |
| 2022 mid = lower + 1; | |
| 2023 NOT_PRODUCT(++nmethod_stats.pc_desc_searches); | |
| 2024 if (mid->pc_offset() < pc_offset) { | |
| 2025 lower = mid; | |
| 2026 } else { | |
| 2027 upper = mid; | |
| 2028 break; | |
| 2029 } | |
| 2030 } | |
| 2031 #undef assert_LU_OK | |
| 2032 | |
| 2033 if (match_desc(upper, pc_offset, approximate)) { | |
| 2034 assert(upper == linear_search(this, pc_offset, approximate), "search ok"); | |
| 2035 _pc_desc_cache.add_pc_desc(upper); | |
| 2036 return upper; | |
| 2037 } else { | |
| 2038 assert(NULL == linear_search(this, pc_offset, approximate), "search ok"); | |
| 2039 return NULL; | |
| 2040 } | |
| 2041 } | |
| 2042 | |
| 2043 | |
| 2044 bool nmethod::check_all_dependencies() { | |
| 2045 bool found_check = false; | |
| 2046 // wholesale check of all dependencies | |
| 2047 for (Dependencies::DepStream deps(this); deps.next(); ) { | |
| 2048 if (deps.check_dependency() != NULL) { | |
| 2049 found_check = true; | |
| 2050 NOT_DEBUG(break); | |
| 2051 } | |
| 2052 } | |
| 2053 return found_check; // tell caller if we found anything | |
| 2054 } | |
| 2055 | |
| 2056 bool nmethod::check_dependency_on(DepChange& changes) { | |
| 2057 // What has happened: | |
| 2058 // 1) a new class dependee has been added | |
| 2059 // 2) dependee and all its super classes have been marked | |
| 2060 bool found_check = false; // set true if we are upset | |
| 2061 for (Dependencies::DepStream deps(this); deps.next(); ) { | |
| 2062 // Evaluate only relevant dependencies. | |
| 2063 if (deps.spot_check_dependency_at(changes) != NULL) { | |
| 2064 found_check = true; | |
| 2065 NOT_DEBUG(break); | |
| 2066 } | |
| 2067 } | |
| 2068 return found_check; | |
| 2069 } | |
| 2070 | |
| 2071 bool nmethod::is_evol_dependent_on(klassOop dependee) { | |
| 2072 instanceKlass *dependee_ik = instanceKlass::cast(dependee); | |
| 2073 objArrayOop dependee_methods = dependee_ik->methods(); | |
| 2074 for (Dependencies::DepStream deps(this); deps.next(); ) { | |
| 2075 if (deps.type() == Dependencies::evol_method) { | |
| 2076 methodOop method = deps.method_argument(0); | |
| 2077 for (int j = 0; j < dependee_methods->length(); j++) { | |
| 2078 if ((methodOop) dependee_methods->obj_at(j) == method) { | |
| 2079 // RC_TRACE macro has an embedded ResourceMark | |
| 2080 RC_TRACE(0x01000000, | |
| 2081 ("Found evol dependency of nmethod %s.%s(%s) compile_id=%d on method %s.%s(%s)", | |
| 2082 _method->method_holder()->klass_part()->external_name(), | |
| 2083 _method->name()->as_C_string(), | |
| 2084 _method->signature()->as_C_string(), compile_id(), | |
| 2085 method->method_holder()->klass_part()->external_name(), | |
| 2086 method->name()->as_C_string(), | |
| 2087 method->signature()->as_C_string())); | |
| 2088 if (TraceDependencies || LogCompilation) | |
| 2089 deps.log_dependency(dependee); | |
| 2090 return true; | |
| 2091 } | |
| 2092 } | |
| 2093 } | |
| 2094 } | |
| 2095 return false; | |
| 2096 } | |
| 2097 | |
| 2098 // Called from mark_for_deoptimization, when dependee is invalidated. | |
| 2099 bool nmethod::is_dependent_on_method(methodOop dependee) { | |
| 2100 for (Dependencies::DepStream deps(this); deps.next(); ) { | |
| 2101 if (deps.type() != Dependencies::evol_method) | |
| 2102 continue; | |
| 2103 methodOop method = deps.method_argument(0); | |
| 2104 if (method == dependee) return true; | |
| 2105 } | |
| 2106 return false; | |
| 2107 } | |
| 2108 | |
| 2109 | |
| 2110 bool nmethod::is_patchable_at(address instr_addr) { | |
| 1748 | 2111 assert(insts_contains(instr_addr), "wrong nmethod used"); |
| 0 | 2112 if (is_zombie()) { |
| 2113 // a zombie may never be patched | |
| 2114 return false; | |
| 2115 } | |
| 2116 return true; | |
| 2117 } | |
| 2118 | |
| 2119 | |
| 2120 address nmethod::continuation_for_implicit_exception(address pc) { | |
| 2121 // Exception happened outside inline-cache check code => we are inside | |
| 2122 // an active nmethod => use cpc to determine a return address | |
| 1748 | 2123 int exception_offset = pc - code_begin(); |
| 0 | 2124 int cont_offset = ImplicitExceptionTable(this).at( exception_offset ); |
| 2125 #ifdef ASSERT | |
| 2126 if (cont_offset == 0) { | |
| 2127 Thread* thread = ThreadLocalStorage::get_thread_slow(); | |
| 2128 ResetNoHandleMark rnm; // Might be called from LEAF/QUICK ENTRY | |
| 2129 HandleMark hm(thread); | |
| 2130 ResourceMark rm(thread); | |
| 2131 CodeBlob* cb = CodeCache::find_blob(pc); | |
| 2132 assert(cb != NULL && cb == this, ""); | |
| 2133 tty->print_cr("implicit exception happened at " INTPTR_FORMAT, pc); | |
| 2134 print(); | |
| 2135 method()->print_codes(); | |
| 2136 print_code(); | |
| 2137 print_pcs(); | |
| 2138 } | |
| 2139 #endif | |
| 1250 | 2140 if (cont_offset == 0) { |
| 2141 // Let the normal error handling report the exception | |
| 2142 return NULL; | |
| 2143 } | |
| 1748 | 2144 return code_begin() + cont_offset; |
| 0 | 2145 } |
| 2146 | |
| 2147 | |
| 2148 | |
| 2149 void nmethod_init() { | |
| 2150 // make sure you didn't forget to adjust the filler fields | |
| 2151 assert(sizeof(nmethod) % oopSize == 0, "nmethod size must be multiple of a word"); | |
| 2152 } | |
| 2153 | |
| 2154 | |
| 2155 //------------------------------------------------------------------------------------------- | |
| 2156 | |
| 2157 | |
| 2158 // QQQ might we make this work from a frame?? | |
| 2159 nmethodLocker::nmethodLocker(address pc) { | |
| 2160 CodeBlob* cb = CodeCache::find_blob(pc); | |
| 2161 guarantee(cb != NULL && cb->is_nmethod(), "bad pc for a nmethod found"); | |
| 2162 _nm = (nmethod*)cb; | |
| 2163 lock_nmethod(_nm); | |
| 2164 } | |
| 2165 | |
| 2166 void nmethodLocker::lock_nmethod(nmethod* nm) { | |
| 2167 if (nm == NULL) return; | |
| 2168 Atomic::inc(&nm->_lock_count); | |
| 2169 guarantee(!nm->is_zombie(), "cannot lock a zombie method"); | |
| 2170 } | |
| 2171 | |
| 2172 void nmethodLocker::unlock_nmethod(nmethod* nm) { | |
| 2173 if (nm == NULL) return; | |
| 2174 Atomic::dec(&nm->_lock_count); | |
| 2175 guarantee(nm->_lock_count >= 0, "unmatched nmethod lock/unlock"); | |
| 2176 } | |
| 2177 | |
| 1204 | 2178 |
| 2179 // ----------------------------------------------------------------------------- | |
| 2180 // nmethod::get_deopt_original_pc | |
| 2181 // | |
| 2182 // Return the original PC for the given PC if: | |
| 2183 // (a) the given PC belongs to a nmethod and | |
| 2184 // (b) it is a deopt PC | |
| 2185 address nmethod::get_deopt_original_pc(const frame* fr) { | |
| 2186 if (fr->cb() == NULL) return NULL; | |
| 2187 | |
| 2188 nmethod* nm = fr->cb()->as_nmethod_or_null(); | |
| 2189 if (nm != NULL && nm->is_deopt_pc(fr->pc())) | |
| 2190 return nm->get_original_pc(fr); | |
| 2191 | |
| 2192 return NULL; | |
| 0 | 2193 } |
| 2194 | |
| 2195 | |
| 2196 // ----------------------------------------------------------------------------- | |
|
1135
e66fd840cb6b
6893081: method handle & invokedynamic code needs additional cleanup (post 6815692, 6858164)
twisti
parents:
1109
diff
changeset
|
2197 // MethodHandle |
|
e66fd840cb6b
6893081: method handle & invokedynamic code needs additional cleanup (post 6815692, 6858164)
twisti
parents:
1109
diff
changeset
|
2198 |
|
e66fd840cb6b
6893081: method handle & invokedynamic code needs additional cleanup (post 6815692, 6858164)
twisti
parents:
1109
diff
changeset
|
2199 bool nmethod::is_method_handle_return(address return_pc) { |
|
e66fd840cb6b
6893081: method handle & invokedynamic code needs additional cleanup (post 6815692, 6858164)
twisti
parents:
1109
diff
changeset
|
2200 if (!has_method_handle_invokes()) return false; |
|
e66fd840cb6b
6893081: method handle & invokedynamic code needs additional cleanup (post 6815692, 6858164)
twisti
parents:
1109
diff
changeset
|
2201 PcDesc* pd = pc_desc_at(return_pc); |
|
e66fd840cb6b
6893081: method handle & invokedynamic code needs additional cleanup (post 6815692, 6858164)
twisti
parents:
1109
diff
changeset
|
2202 if (pd == NULL) |
|
e66fd840cb6b
6893081: method handle & invokedynamic code needs additional cleanup (post 6815692, 6858164)
twisti
parents:
1109
diff
changeset
|
2203 return false; |
|
e66fd840cb6b
6893081: method handle & invokedynamic code needs additional cleanup (post 6815692, 6858164)
twisti
parents:
1109
diff
changeset
|
2204 return pd->is_method_handle_invoke(); |
|
e66fd840cb6b
6893081: method handle & invokedynamic code needs additional cleanup (post 6815692, 6858164)
twisti
parents:
1109
diff
changeset
|
2205 } |
|
e66fd840cb6b
6893081: method handle & invokedynamic code needs additional cleanup (post 6815692, 6858164)
twisti
parents:
1109
diff
changeset
|
2206 |
|
e66fd840cb6b
6893081: method handle & invokedynamic code needs additional cleanup (post 6815692, 6858164)
twisti
parents:
1109
diff
changeset
|
2207 |
|
e66fd840cb6b
6893081: method handle & invokedynamic code needs additional cleanup (post 6815692, 6858164)
twisti
parents:
1109
diff
changeset
|
2208 // ----------------------------------------------------------------------------- |
| 0 | 2209 // Verification |
| 2210 | |
|
989
148e5441d916
6863023: need non-perm oops in code cache for JSR 292
jrose
parents:
931
diff
changeset
|
2211 class VerifyOopsClosure: public OopClosure { |
|
148e5441d916
6863023: need non-perm oops in code cache for JSR 292
jrose
parents:
931
diff
changeset
|
2212 nmethod* _nm; |
|
148e5441d916
6863023: need non-perm oops in code cache for JSR 292
jrose
parents:
931
diff
changeset
|
2213 bool _ok; |
|
148e5441d916
6863023: need non-perm oops in code cache for JSR 292
jrose
parents:
931
diff
changeset
|
2214 public: |
|
148e5441d916
6863023: need non-perm oops in code cache for JSR 292
jrose
parents:
931
diff
changeset
|
2215 VerifyOopsClosure(nmethod* nm) : _nm(nm), _ok(true) { } |
|
148e5441d916
6863023: need non-perm oops in code cache for JSR 292
jrose
parents:
931
diff
changeset
|
2216 bool ok() { return _ok; } |
|
148e5441d916
6863023: need non-perm oops in code cache for JSR 292
jrose
parents:
931
diff
changeset
|
2217 virtual void do_oop(oop* p) { |
|
148e5441d916
6863023: need non-perm oops in code cache for JSR 292
jrose
parents:
931
diff
changeset
|
2218 if ((*p) == NULL || (*p)->is_oop()) return; |
|
148e5441d916
6863023: need non-perm oops in code cache for JSR 292
jrose
parents:
931
diff
changeset
|
2219 if (_ok) { |
|
148e5441d916
6863023: need non-perm oops in code cache for JSR 292
jrose
parents:
931
diff
changeset
|
2220 _nm->print_nmethod(true); |
|
148e5441d916
6863023: need non-perm oops in code cache for JSR 292
jrose
parents:
931
diff
changeset
|
2221 _ok = false; |
|
148e5441d916
6863023: need non-perm oops in code cache for JSR 292
jrose
parents:
931
diff
changeset
|
2222 } |
|
148e5441d916
6863023: need non-perm oops in code cache for JSR 292
jrose
parents:
931
diff
changeset
|
2223 tty->print_cr("*** non-oop "PTR_FORMAT" found at "PTR_FORMAT" (offset %d)", |
|
148e5441d916
6863023: need non-perm oops in code cache for JSR 292
jrose
parents:
931
diff
changeset
|
2224 (intptr_t)(*p), (intptr_t)p, (int)((intptr_t)p - (intptr_t)_nm)); |
|
148e5441d916
6863023: need non-perm oops in code cache for JSR 292
jrose
parents:
931
diff
changeset
|
2225 } |
|
148e5441d916
6863023: need non-perm oops in code cache for JSR 292
jrose
parents:
931
diff
changeset
|
2226 virtual void do_oop(narrowOop* p) { ShouldNotReachHere(); } |
|
148e5441d916
6863023: need non-perm oops in code cache for JSR 292
jrose
parents:
931
diff
changeset
|
2227 }; |
|
148e5441d916
6863023: need non-perm oops in code cache for JSR 292
jrose
parents:
931
diff
changeset
|
2228 |
| 0 | 2229 void nmethod::verify() { |
| 2230 | |
| 2231 // Hmm. OSR methods can be deopted but not marked as zombie or not_entrant | |
| 2232 // seems odd. | |
| 2233 | |
| 2234 if( is_zombie() || is_not_entrant() ) | |
| 2235 return; | |
| 2236 | |
| 2237 // Make sure all the entry points are correctly aligned for patching. | |
| 2238 NativeJump::check_verified_entry_alignment(entry_point(), verified_entry_point()); | |
| 2239 | |
| 2240 assert(method()->is_oop(), "must be valid"); | |
| 2241 | |
| 2242 ResourceMark rm; | |
| 2243 | |
| 2244 if (!CodeCache::contains(this)) { | |
|
1490
f03d0a26bf83
6888954: argument formatting for assert() and friends
jcoomes
parents:
1489
diff
changeset
|
2245 fatal(err_msg("nmethod at " INTPTR_FORMAT " not in zone", this)); |
| 0 | 2246 } |
| 2247 | |
| 2248 if(is_native_method() ) | |
| 2249 return; | |
| 2250 | |
| 2251 nmethod* nm = CodeCache::find_nmethod(verified_entry_point()); | |
| 2252 if (nm != this) { | |
|
1490
f03d0a26bf83
6888954: argument formatting for assert() and friends
jcoomes
parents:
1489
diff
changeset
|
2253 fatal(err_msg("findNMethod did not find this nmethod (" INTPTR_FORMAT ")", |
|
f03d0a26bf83
6888954: argument formatting for assert() and friends
jcoomes
parents:
1489
diff
changeset
|
2254 this)); |
| 0 | 2255 } |
| 2256 | |
| 2257 for (PcDesc* p = scopes_pcs_begin(); p < scopes_pcs_end(); p++) { | |
| 2258 if (! p->verify(this)) { | |
| 2259 tty->print_cr("\t\tin nmethod at " INTPTR_FORMAT " (pcs)", this); | |
| 2260 } | |
| 2261 } | |
| 2262 | |
|
989
148e5441d916
6863023: need non-perm oops in code cache for JSR 292
jrose
parents:
931
diff
changeset
|
2263 VerifyOopsClosure voc(this); |
|
148e5441d916
6863023: need non-perm oops in code cache for JSR 292
jrose
parents:
931
diff
changeset
|
2264 oops_do(&voc); |
|
148e5441d916
6863023: need non-perm oops in code cache for JSR 292
jrose
parents:
931
diff
changeset
|
2265 assert(voc.ok(), "embedded oops must be OK"); |
|
148e5441d916
6863023: need non-perm oops in code cache for JSR 292
jrose
parents:
931
diff
changeset
|
2266 verify_scavenge_root_oops(); |
|
148e5441d916
6863023: need non-perm oops in code cache for JSR 292
jrose
parents:
931
diff
changeset
|
2267 |
| 0 | 2268 verify_scopes(); |
| 2269 } | |
| 2270 | |
| 2271 | |
| 2272 void nmethod::verify_interrupt_point(address call_site) { | |
| 2273 // This code does not work in release mode since | |
| 2274 // owns_lock only is available in debug mode. | |
| 2275 CompiledIC* ic = NULL; | |
| 2276 Thread *cur = Thread::current(); | |
| 2277 if (CompiledIC_lock->owner() == cur || | |
| 2278 ((cur->is_VM_thread() || cur->is_ConcurrentGC_thread()) && | |
| 2279 SafepointSynchronize::is_at_safepoint())) { | |
| 2280 ic = CompiledIC_at(call_site); | |
| 2281 CHECK_UNHANDLED_OOPS_ONLY(Thread::current()->clear_unhandled_oops()); | |
| 2282 } else { | |
| 2283 MutexLocker ml_verify (CompiledIC_lock); | |
| 2284 ic = CompiledIC_at(call_site); | |
| 2285 } | |
| 2286 PcDesc* pd = pc_desc_at(ic->end_of_call()); | |
| 2287 assert(pd != NULL, "PcDesc must exist"); | |
| 2288 for (ScopeDesc* sd = new ScopeDesc(this, pd->scope_decode_offset(), | |
|
1253
f70b0d9ab095
6910618: C2: Error: assert(d->is_oop(),"JVM_ArrayCopy: dst not an oop")
kvn
parents:
1250
diff
changeset
|
2289 pd->obj_decode_offset(), pd->should_reexecute(), |
|
f70b0d9ab095
6910618: C2: Error: assert(d->is_oop(),"JVM_ArrayCopy: dst not an oop")
kvn
parents:
1250
diff
changeset
|
2290 pd->return_oop()); |
| 0 | 2291 !sd->is_top(); sd = sd->sender()) { |
| 2292 sd->verify(); | |
| 2293 } | |
| 2294 } | |
| 2295 | |
| 2296 void nmethod::verify_scopes() { | |
| 2297 if( !method() ) return; // Runtime stubs have no scope | |
| 2298 if (method()->is_native()) return; // Ignore stub methods. | |
| 2299 // iterate through all interrupt point | |
| 2300 // and verify the debug information is valid. | |
| 2301 RelocIterator iter((nmethod*)this); | |
| 2302 while (iter.next()) { | |
| 2303 address stub = NULL; | |
| 2304 switch (iter.type()) { | |
| 2305 case relocInfo::virtual_call_type: | |
| 2306 verify_interrupt_point(iter.addr()); | |
| 2307 break; | |
| 2308 case relocInfo::opt_virtual_call_type: | |
| 2309 stub = iter.opt_virtual_call_reloc()->static_stub(); | |
| 2310 verify_interrupt_point(iter.addr()); | |
| 2311 break; | |
| 2312 case relocInfo::static_call_type: | |
| 2313 stub = iter.static_call_reloc()->static_stub(); | |
| 2314 //verify_interrupt_point(iter.addr()); | |
| 2315 break; | |
| 2316 case relocInfo::runtime_call_type: | |
| 2317 address destination = iter.reloc()->value(); | |
| 2318 // Right now there is no way to find out which entries support | |
| 2319 // an interrupt point. It would be nice if we had this | |
| 2320 // information in a table. | |
| 2321 break; | |
| 2322 } | |
| 2323 assert(stub == NULL || stub_contains(stub), "static call stub outside stub section"); | |
| 2324 } | |
| 2325 } | |
| 2326 | |
| 2327 | |
| 2328 // ----------------------------------------------------------------------------- | |
| 2329 // Non-product code | |
| 2330 #ifndef PRODUCT | |
| 2331 | |
|
989
148e5441d916
6863023: need non-perm oops in code cache for JSR 292
jrose
parents:
931
diff
changeset
|
2332 class DebugScavengeRoot: public OopClosure { |
|
148e5441d916
6863023: need non-perm oops in code cache for JSR 292
jrose
parents:
931
diff
changeset
|
2333 nmethod* _nm; |
|
148e5441d916
6863023: need non-perm oops in code cache for JSR 292
jrose
parents:
931
diff
changeset
|
2334 bool _ok; |
|
148e5441d916
6863023: need non-perm oops in code cache for JSR 292
jrose
parents:
931
diff
changeset
|
2335 public: |
|
148e5441d916
6863023: need non-perm oops in code cache for JSR 292
jrose
parents:
931
diff
changeset
|
2336 DebugScavengeRoot(nmethod* nm) : _nm(nm), _ok(true) { } |
|
148e5441d916
6863023: need non-perm oops in code cache for JSR 292
jrose
parents:
931
diff
changeset
|
2337 bool ok() { return _ok; } |
|
148e5441d916
6863023: need non-perm oops in code cache for JSR 292
jrose
parents:
931
diff
changeset
|
2338 virtual void do_oop(oop* p) { |
|
148e5441d916
6863023: need non-perm oops in code cache for JSR 292
jrose
parents:
931
diff
changeset
|
2339 if ((*p) == NULL || !(*p)->is_scavengable()) return; |
|
148e5441d916
6863023: need non-perm oops in code cache for JSR 292
jrose
parents:
931
diff
changeset
|
2340 if (_ok) { |
|
148e5441d916
6863023: need non-perm oops in code cache for JSR 292
jrose
parents:
931
diff
changeset
|
2341 _nm->print_nmethod(true); |
|
148e5441d916
6863023: need non-perm oops in code cache for JSR 292
jrose
parents:
931
diff
changeset
|
2342 _ok = false; |
|
148e5441d916
6863023: need non-perm oops in code cache for JSR 292
jrose
parents:
931
diff
changeset
|
2343 } |
|
148e5441d916
6863023: need non-perm oops in code cache for JSR 292
jrose
parents:
931
diff
changeset
|
2344 tty->print_cr("*** non-perm oop "PTR_FORMAT" found at "PTR_FORMAT" (offset %d)", |
|
148e5441d916
6863023: need non-perm oops in code cache for JSR 292
jrose
parents:
931
diff
changeset
|
2345 (intptr_t)(*p), (intptr_t)p, (int)((intptr_t)p - (intptr_t)_nm)); |
|
148e5441d916
6863023: need non-perm oops in code cache for JSR 292
jrose
parents:
931
diff
changeset
|
2346 (*p)->print(); |
|
148e5441d916
6863023: need non-perm oops in code cache for JSR 292
jrose
parents:
931
diff
changeset
|
2347 } |
|
148e5441d916
6863023: need non-perm oops in code cache for JSR 292
jrose
parents:
931
diff
changeset
|
2348 virtual void do_oop(narrowOop* p) { ShouldNotReachHere(); } |
|
148e5441d916
6863023: need non-perm oops in code cache for JSR 292
jrose
parents:
931
diff
changeset
|
2349 }; |
| 0 | 2350 |
|
989
148e5441d916
6863023: need non-perm oops in code cache for JSR 292
jrose
parents:
931
diff
changeset
|
2351 void nmethod::verify_scavenge_root_oops() { |
|
148e5441d916
6863023: need non-perm oops in code cache for JSR 292
jrose
parents:
931
diff
changeset
|
2352 if (!on_scavenge_root_list()) { |
|
148e5441d916
6863023: need non-perm oops in code cache for JSR 292
jrose
parents:
931
diff
changeset
|
2353 // Actually look inside, to verify the claim that it's clean. |
|
148e5441d916
6863023: need non-perm oops in code cache for JSR 292
jrose
parents:
931
diff
changeset
|
2354 DebugScavengeRoot debug_scavenge_root(this); |
|
148e5441d916
6863023: need non-perm oops in code cache for JSR 292
jrose
parents:
931
diff
changeset
|
2355 oops_do(&debug_scavenge_root); |
|
148e5441d916
6863023: need non-perm oops in code cache for JSR 292
jrose
parents:
931
diff
changeset
|
2356 if (!debug_scavenge_root.ok()) |
|
148e5441d916
6863023: need non-perm oops in code cache for JSR 292
jrose
parents:
931
diff
changeset
|
2357 fatal("found an unadvertised bad non-perm oop in the code cache"); |
| 0 | 2358 } |
|
989
148e5441d916
6863023: need non-perm oops in code cache for JSR 292
jrose
parents:
931
diff
changeset
|
2359 assert(scavenge_root_not_marked(), ""); |
| 0 | 2360 } |
| 2361 | |
|
100
c7c777385a15
6667042: PrintAssembly option does not work without special plugin
jrose
parents:
30
diff
changeset
|
2362 #endif // PRODUCT |
| 0 | 2363 |
| 2364 // Printing operations | |
| 2365 | |
| 2366 void nmethod::print() const { | |
| 2367 ResourceMark rm; | |
| 2368 ttyLocker ttyl; // keep the following output all in one block | |
| 2369 | |
| 2370 tty->print("Compiled "); | |
| 2371 | |
| 2372 if (is_compiled_by_c1()) { | |
| 2373 tty->print("(c1) "); | |
| 2374 } else if (is_compiled_by_c2()) { | |
| 2375 tty->print("(c2) "); | |
| 1692 | 2376 } else if (is_compiled_by_shark()) { |
| 2377 tty->print("(shark) "); | |
| 0 | 2378 } else { |
| 2379 tty->print("(nm) "); | |
| 2380 } | |
| 2381 | |
| 2382 print_on(tty, "nmethod"); | |
| 2383 tty->cr(); | |
| 2384 if (WizardMode) { | |
| 2385 tty->print("((nmethod*) "INTPTR_FORMAT ") ", this); | |
| 2386 tty->print(" for method " INTPTR_FORMAT , (address)method()); | |
| 2387 tty->print(" { "); | |
| 2388 if (is_in_use()) tty->print("in_use "); | |
| 2389 if (is_not_entrant()) tty->print("not_entrant "); | |
| 2390 if (is_zombie()) tty->print("zombie "); | |
| 2391 if (is_unloaded()) tty->print("unloaded "); | |
|
989
148e5441d916
6863023: need non-perm oops in code cache for JSR 292
jrose
parents:
931
diff
changeset
|
2392 if (on_scavenge_root_list()) tty->print("scavenge_root "); |
| 0 | 2393 tty->print_cr("}:"); |
| 2394 } | |
| 2395 if (size () > 0) tty->print_cr(" total in heap [" INTPTR_FORMAT "," INTPTR_FORMAT "] = %d", | |
| 2396 (address)this, | |
| 2397 (address)this + size(), | |
| 2398 size()); | |
| 2399 if (relocation_size () > 0) tty->print_cr(" relocation [" INTPTR_FORMAT "," INTPTR_FORMAT "] = %d", | |
| 2400 relocation_begin(), | |
| 2401 relocation_end(), | |
| 2402 relocation_size()); | |
|
1762
0878d7bae69f
6961697: move nmethod constants section before instruction section
twisti
parents:
1748
diff
changeset
|
2403 if (consts_size () > 0) tty->print_cr(" constants [" INTPTR_FORMAT "," INTPTR_FORMAT "] = %d", |
|
0878d7bae69f
6961697: move nmethod constants section before instruction section
twisti
parents:
1748
diff
changeset
|
2404 consts_begin(), |
|
0878d7bae69f
6961697: move nmethod constants section before instruction section
twisti
parents:
1748
diff
changeset
|
2405 consts_end(), |
|
0878d7bae69f
6961697: move nmethod constants section before instruction section
twisti
parents:
1748
diff
changeset
|
2406 consts_size()); |
| 1748 | 2407 if (insts_size () > 0) tty->print_cr(" main code [" INTPTR_FORMAT "," INTPTR_FORMAT "] = %d", |
| 2408 insts_begin(), | |
| 2409 insts_end(), | |
| 2410 insts_size()); | |
| 0 | 2411 if (stub_size () > 0) tty->print_cr(" stub code [" INTPTR_FORMAT "," INTPTR_FORMAT "] = %d", |
| 2412 stub_begin(), | |
| 2413 stub_end(), | |
| 2414 stub_size()); | |
|
1563
1a5913bf5e19
6951083: oops and relocations should part of nmethod not CodeBlob
twisti
parents:
1538
diff
changeset
|
2415 if (oops_size () > 0) tty->print_cr(" oops [" INTPTR_FORMAT "," INTPTR_FORMAT "] = %d", |
|
1a5913bf5e19
6951083: oops and relocations should part of nmethod not CodeBlob
twisti
parents:
1538
diff
changeset
|
2416 oops_begin(), |
|
1a5913bf5e19
6951083: oops and relocations should part of nmethod not CodeBlob
twisti
parents:
1538
diff
changeset
|
2417 oops_end(), |
|
1a5913bf5e19
6951083: oops and relocations should part of nmethod not CodeBlob
twisti
parents:
1538
diff
changeset
|
2418 oops_size()); |
| 0 | 2419 if (scopes_data_size () > 0) tty->print_cr(" scopes data [" INTPTR_FORMAT "," INTPTR_FORMAT "] = %d", |
| 2420 scopes_data_begin(), | |
| 2421 scopes_data_end(), | |
| 2422 scopes_data_size()); | |
| 2423 if (scopes_pcs_size () > 0) tty->print_cr(" scopes pcs [" INTPTR_FORMAT "," INTPTR_FORMAT "] = %d", | |
| 2424 scopes_pcs_begin(), | |
| 2425 scopes_pcs_end(), | |
| 2426 scopes_pcs_size()); | |
| 2427 if (dependencies_size () > 0) tty->print_cr(" dependencies [" INTPTR_FORMAT "," INTPTR_FORMAT "] = %d", | |
| 2428 dependencies_begin(), | |
| 2429 dependencies_end(), | |
| 2430 dependencies_size()); | |
| 2431 if (handler_table_size() > 0) tty->print_cr(" handler table [" INTPTR_FORMAT "," INTPTR_FORMAT "] = %d", | |
| 2432 handler_table_begin(), | |
| 2433 handler_table_end(), | |
| 2434 handler_table_size()); | |
| 2435 if (nul_chk_table_size() > 0) tty->print_cr(" nul chk table [" INTPTR_FORMAT "," INTPTR_FORMAT "] = %d", | |
| 2436 nul_chk_table_begin(), | |
| 2437 nul_chk_table_end(), | |
| 2438 nul_chk_table_size()); | |
| 2439 } | |
| 2440 | |
|
100
c7c777385a15
6667042: PrintAssembly option does not work without special plugin
jrose
parents:
30
diff
changeset
|
2441 void nmethod::print_code() { |
|
c7c777385a15
6667042: PrintAssembly option does not work without special plugin
jrose
parents:
30
diff
changeset
|
2442 HandleMark hm; |
|
c7c777385a15
6667042: PrintAssembly option does not work without special plugin
jrose
parents:
30
diff
changeset
|
2443 ResourceMark m; |
|
c7c777385a15
6667042: PrintAssembly option does not work without special plugin
jrose
parents:
30
diff
changeset
|
2444 Disassembler::decode(this); |
|
c7c777385a15
6667042: PrintAssembly option does not work without special plugin
jrose
parents:
30
diff
changeset
|
2445 } |
|
c7c777385a15
6667042: PrintAssembly option does not work without special plugin
jrose
parents:
30
diff
changeset
|
2446 |
|
c7c777385a15
6667042: PrintAssembly option does not work without special plugin
jrose
parents:
30
diff
changeset
|
2447 |
|
c7c777385a15
6667042: PrintAssembly option does not work without special plugin
jrose
parents:
30
diff
changeset
|
2448 #ifndef PRODUCT |
| 0 | 2449 |
| 2450 void nmethod::print_scopes() { | |
| 2451 // Find the first pc desc for all scopes in the code and print it. | |
| 2452 ResourceMark rm; | |
| 2453 for (PcDesc* p = scopes_pcs_begin(); p < scopes_pcs_end(); p++) { | |
| 2454 if (p->scope_decode_offset() == DebugInformationRecorder::serialized_null) | |
| 2455 continue; | |
| 2456 | |
| 2457 ScopeDesc* sd = scope_desc_at(p->real_pc(this)); | |
| 2458 sd->print_on(tty, p); | |
| 2459 } | |
| 2460 } | |
| 2461 | |
| 2462 void nmethod::print_dependencies() { | |
| 2463 ResourceMark rm; | |
| 2464 ttyLocker ttyl; // keep the following output all in one block | |
| 2465 tty->print_cr("Dependencies:"); | |
| 2466 for (Dependencies::DepStream deps(this); deps.next(); ) { | |
| 2467 deps.print_dependency(); | |
| 2468 klassOop ctxk = deps.context_type(); | |
| 2469 if (ctxk != NULL) { | |
| 2470 Klass* k = Klass::cast(ctxk); | |
| 2471 if (k->oop_is_instance() && ((instanceKlass*)k)->is_dependent_nmethod(this)) { | |
| 30 | 2472 tty->print_cr(" [nmethod<=klass]%s", k->external_name()); |
| 0 | 2473 } |
| 2474 } | |
| 2475 deps.log_dependency(); // put it into the xml log also | |
| 2476 } | |
| 2477 } | |
| 2478 | |
| 2479 | |
| 2480 void nmethod::print_relocations() { | |
| 2481 ResourceMark m; // in case methods get printed via the debugger | |
| 2482 tty->print_cr("relocations:"); | |
| 2483 RelocIterator iter(this); | |
| 2484 iter.print(); | |
| 2485 if (UseRelocIndex) { | |
| 2486 jint* index_end = (jint*)relocation_end() - 1; | |
| 2487 jint index_size = *index_end; | |
| 2488 jint* index_start = (jint*)( (address)index_end - index_size ); | |
| 2489 tty->print_cr(" index @" INTPTR_FORMAT ": index_size=%d", index_start, index_size); | |
| 2490 if (index_size > 0) { | |
| 2491 jint* ip; | |
| 2492 for (ip = index_start; ip+2 <= index_end; ip += 2) | |
| 2493 tty->print_cr(" (%d %d) addr=" INTPTR_FORMAT " @" INTPTR_FORMAT, | |
| 2494 ip[0], | |
| 2495 ip[1], | |
| 2496 header_end()+ip[0], | |
| 2497 relocation_begin()-1+ip[1]); | |
| 2498 for (; ip < index_end; ip++) | |
| 2499 tty->print_cr(" (%d ?)", ip[0]); | |
| 2500 tty->print_cr(" @" INTPTR_FORMAT ": index_size=%d", ip, *ip++); | |
| 2501 tty->print_cr("reloc_end @" INTPTR_FORMAT ":", ip); | |
| 2502 } | |
| 2503 } | |
| 2504 } | |
| 2505 | |
| 2506 | |
| 2507 void nmethod::print_pcs() { | |
| 2508 ResourceMark m; // in case methods get printed via debugger | |
| 2509 tty->print_cr("pc-bytecode offsets:"); | |
| 2510 for (PcDesc* p = scopes_pcs_begin(); p < scopes_pcs_end(); p++) { | |
| 2511 p->print(this); | |
| 2512 } | |
| 2513 } | |
| 2514 | |
|
100
c7c777385a15
6667042: PrintAssembly option does not work without special plugin
jrose
parents:
30
diff
changeset
|
2515 #endif // PRODUCT |
| 0 | 2516 |
| 2517 const char* nmethod::reloc_string_for(u_char* begin, u_char* end) { | |
| 2518 RelocIterator iter(this, begin, end); | |
| 2519 bool have_one = false; | |
| 2520 while (iter.next()) { | |
| 2521 have_one = true; | |
| 2522 switch (iter.type()) { | |
| 2523 case relocInfo::none: return "no_reloc"; | |
| 2524 case relocInfo::oop_type: { | |
| 2525 stringStream st; | |
| 2526 oop_Relocation* r = iter.oop_reloc(); | |
| 2527 oop obj = r->oop_value(); | |
| 2528 st.print("oop("); | |
| 2529 if (obj == NULL) st.print("NULL"); | |
| 2530 else obj->print_value_on(&st); | |
| 2531 st.print(")"); | |
| 2532 return st.as_string(); | |
| 2533 } | |
| 2534 case relocInfo::virtual_call_type: return "virtual_call"; | |
| 2535 case relocInfo::opt_virtual_call_type: return "optimized virtual_call"; | |
| 2536 case relocInfo::static_call_type: return "static_call"; | |
| 2537 case relocInfo::static_stub_type: return "static_stub"; | |
| 2538 case relocInfo::runtime_call_type: return "runtime_call"; | |
| 2539 case relocInfo::external_word_type: return "external_word"; | |
| 2540 case relocInfo::internal_word_type: return "internal_word"; | |
| 2541 case relocInfo::section_word_type: return "section_word"; | |
| 2542 case relocInfo::poll_type: return "poll"; | |
| 2543 case relocInfo::poll_return_type: return "poll_return"; | |
| 2544 case relocInfo::type_mask: return "type_bit_mask"; | |
| 2545 } | |
| 2546 } | |
| 2547 return have_one ? "other" : NULL; | |
| 2548 } | |
| 2549 | |
| 2550 // Return a the last scope in (begin..end] | |
| 2551 ScopeDesc* nmethod::scope_desc_in(address begin, address end) { | |
| 2552 PcDesc* p = pc_desc_near(begin+1); | |
| 2553 if (p != NULL && p->real_pc(this) <= end) { | |
| 2554 return new ScopeDesc(this, p->scope_decode_offset(), | |
|
1253
f70b0d9ab095
6910618: C2: Error: assert(d->is_oop(),"JVM_ArrayCopy: dst not an oop")
kvn
parents:
1250
diff
changeset
|
2555 p->obj_decode_offset(), p->should_reexecute(), |
|
f70b0d9ab095
6910618: C2: Error: assert(d->is_oop(),"JVM_ArrayCopy: dst not an oop")
kvn
parents:
1250
diff
changeset
|
2556 p->return_oop()); |
| 0 | 2557 } |
| 2558 return NULL; | |
| 2559 } | |
| 2560 | |
|
1155
4e6abf09f540
6912062: disassembler plugin needs to produce symbolic information in product mode
jrose
parents:
1141
diff
changeset
|
2561 void nmethod::print_nmethod_labels(outputStream* stream, address block_begin) { |
|
4e6abf09f540
6912062: disassembler plugin needs to produce symbolic information in product mode
jrose
parents:
1141
diff
changeset
|
2562 if (block_begin == entry_point()) stream->print_cr("[Entry Point]"); |
|
4e6abf09f540
6912062: disassembler plugin needs to produce symbolic information in product mode
jrose
parents:
1141
diff
changeset
|
2563 if (block_begin == verified_entry_point()) stream->print_cr("[Verified Entry Point]"); |
|
4e6abf09f540
6912062: disassembler plugin needs to produce symbolic information in product mode
jrose
parents:
1141
diff
changeset
|
2564 if (block_begin == exception_begin()) stream->print_cr("[Exception Handler]"); |
|
4e6abf09f540
6912062: disassembler plugin needs to produce symbolic information in product mode
jrose
parents:
1141
diff
changeset
|
2565 if (block_begin == stub_begin()) stream->print_cr("[Stub Code]"); |
| 1204 | 2566 if (block_begin == deopt_handler_begin()) stream->print_cr("[Deopt Handler Code]"); |
|
1691
4a665be40fd3
6975855: don't emit deopt MH handler in C1 if not required
twisti
parents:
1644
diff
changeset
|
2567 |
|
4a665be40fd3
6975855: don't emit deopt MH handler in C1 if not required
twisti
parents:
1644
diff
changeset
|
2568 if (has_method_handle_invokes()) |
|
4a665be40fd3
6975855: don't emit deopt MH handler in C1 if not required
twisti
parents:
1644
diff
changeset
|
2569 if (block_begin == deopt_mh_handler_begin()) stream->print_cr("[Deopt MH Handler Code]"); |
|
4a665be40fd3
6975855: don't emit deopt MH handler in C1 if not required
twisti
parents:
1644
diff
changeset
|
2570 |
|
1155
4e6abf09f540
6912062: disassembler plugin needs to produce symbolic information in product mode
jrose
parents:
1141
diff
changeset
|
2571 if (block_begin == consts_begin()) stream->print_cr("[Constants]"); |
|
1691
4a665be40fd3
6975855: don't emit deopt MH handler in C1 if not required
twisti
parents:
1644
diff
changeset
|
2572 |
|
1155
4e6abf09f540
6912062: disassembler plugin needs to produce symbolic information in product mode
jrose
parents:
1141
diff
changeset
|
2573 if (block_begin == entry_point()) { |
|
4e6abf09f540
6912062: disassembler plugin needs to produce symbolic information in product mode
jrose
parents:
1141
diff
changeset
|
2574 methodHandle m = method(); |
|
4e6abf09f540
6912062: disassembler plugin needs to produce symbolic information in product mode
jrose
parents:
1141
diff
changeset
|
2575 if (m.not_null()) { |
|
4e6abf09f540
6912062: disassembler plugin needs to produce symbolic information in product mode
jrose
parents:
1141
diff
changeset
|
2576 stream->print(" # "); |
|
4e6abf09f540
6912062: disassembler plugin needs to produce symbolic information in product mode
jrose
parents:
1141
diff
changeset
|
2577 m->print_value_on(stream); |
|
4e6abf09f540
6912062: disassembler plugin needs to produce symbolic information in product mode
jrose
parents:
1141
diff
changeset
|
2578 stream->cr(); |
|
4e6abf09f540
6912062: disassembler plugin needs to produce symbolic information in product mode
jrose
parents:
1141
diff
changeset
|
2579 } |
|
4e6abf09f540
6912062: disassembler plugin needs to produce symbolic information in product mode
jrose
parents:
1141
diff
changeset
|
2580 if (m.not_null() && !is_osr_method()) { |
|
4e6abf09f540
6912062: disassembler plugin needs to produce symbolic information in product mode
jrose
parents:
1141
diff
changeset
|
2581 ResourceMark rm; |
|
4e6abf09f540
6912062: disassembler plugin needs to produce symbolic information in product mode
jrose
parents:
1141
diff
changeset
|
2582 int sizeargs = m->size_of_parameters(); |
|
4e6abf09f540
6912062: disassembler plugin needs to produce symbolic information in product mode
jrose
parents:
1141
diff
changeset
|
2583 BasicType* sig_bt = NEW_RESOURCE_ARRAY(BasicType, sizeargs); |
|
4e6abf09f540
6912062: disassembler plugin needs to produce symbolic information in product mode
jrose
parents:
1141
diff
changeset
|
2584 VMRegPair* regs = NEW_RESOURCE_ARRAY(VMRegPair, sizeargs); |
|
4e6abf09f540
6912062: disassembler plugin needs to produce symbolic information in product mode
jrose
parents:
1141
diff
changeset
|
2585 { |
|
4e6abf09f540
6912062: disassembler plugin needs to produce symbolic information in product mode
jrose
parents:
1141
diff
changeset
|
2586 int sig_index = 0; |
|
4e6abf09f540
6912062: disassembler plugin needs to produce symbolic information in product mode
jrose
parents:
1141
diff
changeset
|
2587 if (!m->is_static()) |
|
4e6abf09f540
6912062: disassembler plugin needs to produce symbolic information in product mode
jrose
parents:
1141
diff
changeset
|
2588 sig_bt[sig_index++] = T_OBJECT; // 'this' |
|
4e6abf09f540
6912062: disassembler plugin needs to produce symbolic information in product mode
jrose
parents:
1141
diff
changeset
|
2589 for (SignatureStream ss(m->signature()); !ss.at_return_type(); ss.next()) { |
|
4e6abf09f540
6912062: disassembler plugin needs to produce symbolic information in product mode
jrose
parents:
1141
diff
changeset
|
2590 BasicType t = ss.type(); |
|
4e6abf09f540
6912062: disassembler plugin needs to produce symbolic information in product mode
jrose
parents:
1141
diff
changeset
|
2591 sig_bt[sig_index++] = t; |
|
4e6abf09f540
6912062: disassembler plugin needs to produce symbolic information in product mode
jrose
parents:
1141
diff
changeset
|
2592 if (type2size[t] == 2) { |
|
4e6abf09f540
6912062: disassembler plugin needs to produce symbolic information in product mode
jrose
parents:
1141
diff
changeset
|
2593 sig_bt[sig_index++] = T_VOID; |
|
4e6abf09f540
6912062: disassembler plugin needs to produce symbolic information in product mode
jrose
parents:
1141
diff
changeset
|
2594 } else { |
|
4e6abf09f540
6912062: disassembler plugin needs to produce symbolic information in product mode
jrose
parents:
1141
diff
changeset
|
2595 assert(type2size[t] == 1, "size is 1 or 2"); |
|
4e6abf09f540
6912062: disassembler plugin needs to produce symbolic information in product mode
jrose
parents:
1141
diff
changeset
|
2596 } |
|
4e6abf09f540
6912062: disassembler plugin needs to produce symbolic information in product mode
jrose
parents:
1141
diff
changeset
|
2597 } |
|
4e6abf09f540
6912062: disassembler plugin needs to produce symbolic information in product mode
jrose
parents:
1141
diff
changeset
|
2598 assert(sig_index == sizeargs, ""); |
|
4e6abf09f540
6912062: disassembler plugin needs to produce symbolic information in product mode
jrose
parents:
1141
diff
changeset
|
2599 } |
|
4e6abf09f540
6912062: disassembler plugin needs to produce symbolic information in product mode
jrose
parents:
1141
diff
changeset
|
2600 const char* spname = "sp"; // make arch-specific? |
|
4e6abf09f540
6912062: disassembler plugin needs to produce symbolic information in product mode
jrose
parents:
1141
diff
changeset
|
2601 intptr_t out_preserve = SharedRuntime::java_calling_convention(sig_bt, regs, sizeargs, false); |
|
4e6abf09f540
6912062: disassembler plugin needs to produce symbolic information in product mode
jrose
parents:
1141
diff
changeset
|
2602 int stack_slot_offset = this->frame_size() * wordSize; |
|
4e6abf09f540
6912062: disassembler plugin needs to produce symbolic information in product mode
jrose
parents:
1141
diff
changeset
|
2603 int tab1 = 14, tab2 = 24; |
|
4e6abf09f540
6912062: disassembler plugin needs to produce symbolic information in product mode
jrose
parents:
1141
diff
changeset
|
2604 int sig_index = 0; |
|
4e6abf09f540
6912062: disassembler plugin needs to produce symbolic information in product mode
jrose
parents:
1141
diff
changeset
|
2605 int arg_index = (m->is_static() ? 0 : -1); |
|
4e6abf09f540
6912062: disassembler plugin needs to produce symbolic information in product mode
jrose
parents:
1141
diff
changeset
|
2606 bool did_old_sp = false; |
|
4e6abf09f540
6912062: disassembler plugin needs to produce symbolic information in product mode
jrose
parents:
1141
diff
changeset
|
2607 for (SignatureStream ss(m->signature()); !ss.at_return_type(); ) { |
|
4e6abf09f540
6912062: disassembler plugin needs to produce symbolic information in product mode
jrose
parents:
1141
diff
changeset
|
2608 bool at_this = (arg_index == -1); |
|
4e6abf09f540
6912062: disassembler plugin needs to produce symbolic information in product mode
jrose
parents:
1141
diff
changeset
|
2609 bool at_old_sp = false; |
|
4e6abf09f540
6912062: disassembler plugin needs to produce symbolic information in product mode
jrose
parents:
1141
diff
changeset
|
2610 BasicType t = (at_this ? T_OBJECT : ss.type()); |
|
4e6abf09f540
6912062: disassembler plugin needs to produce symbolic information in product mode
jrose
parents:
1141
diff
changeset
|
2611 assert(t == sig_bt[sig_index], "sigs in sync"); |
|
4e6abf09f540
6912062: disassembler plugin needs to produce symbolic information in product mode
jrose
parents:
1141
diff
changeset
|
2612 if (at_this) |
|
4e6abf09f540
6912062: disassembler plugin needs to produce symbolic information in product mode
jrose
parents:
1141
diff
changeset
|
2613 stream->print(" # this: "); |
|
4e6abf09f540
6912062: disassembler plugin needs to produce symbolic information in product mode
jrose
parents:
1141
diff
changeset
|
2614 else |
|
4e6abf09f540
6912062: disassembler plugin needs to produce symbolic information in product mode
jrose
parents:
1141
diff
changeset
|
2615 stream->print(" # parm%d: ", arg_index); |
|
4e6abf09f540
6912062: disassembler plugin needs to produce symbolic information in product mode
jrose
parents:
1141
diff
changeset
|
2616 stream->move_to(tab1); |
|
4e6abf09f540
6912062: disassembler plugin needs to produce symbolic information in product mode
jrose
parents:
1141
diff
changeset
|
2617 VMReg fst = regs[sig_index].first(); |
|
4e6abf09f540
6912062: disassembler plugin needs to produce symbolic information in product mode
jrose
parents:
1141
diff
changeset
|
2618 VMReg snd = regs[sig_index].second(); |
|
4e6abf09f540
6912062: disassembler plugin needs to produce symbolic information in product mode
jrose
parents:
1141
diff
changeset
|
2619 if (fst->is_reg()) { |
|
4e6abf09f540
6912062: disassembler plugin needs to produce symbolic information in product mode
jrose
parents:
1141
diff
changeset
|
2620 stream->print("%s", fst->name()); |
|
4e6abf09f540
6912062: disassembler plugin needs to produce symbolic information in product mode
jrose
parents:
1141
diff
changeset
|
2621 if (snd->is_valid()) { |
|
4e6abf09f540
6912062: disassembler plugin needs to produce symbolic information in product mode
jrose
parents:
1141
diff
changeset
|
2622 stream->print(":%s", snd->name()); |
|
4e6abf09f540
6912062: disassembler plugin needs to produce symbolic information in product mode
jrose
parents:
1141
diff
changeset
|
2623 } |
|
4e6abf09f540
6912062: disassembler plugin needs to produce symbolic information in product mode
jrose
parents:
1141
diff
changeset
|
2624 } else if (fst->is_stack()) { |
|
4e6abf09f540
6912062: disassembler plugin needs to produce symbolic information in product mode
jrose
parents:
1141
diff
changeset
|
2625 int offset = fst->reg2stack() * VMRegImpl::stack_slot_size + stack_slot_offset; |
|
4e6abf09f540
6912062: disassembler plugin needs to produce symbolic information in product mode
jrose
parents:
1141
diff
changeset
|
2626 if (offset == stack_slot_offset) at_old_sp = true; |
|
4e6abf09f540
6912062: disassembler plugin needs to produce symbolic information in product mode
jrose
parents:
1141
diff
changeset
|
2627 stream->print("[%s+0x%x]", spname, offset); |
|
4e6abf09f540
6912062: disassembler plugin needs to produce symbolic information in product mode
jrose
parents:
1141
diff
changeset
|
2628 } else { |
|
4e6abf09f540
6912062: disassembler plugin needs to produce symbolic information in product mode
jrose
parents:
1141
diff
changeset
|
2629 stream->print("reg%d:%d??", (int)(intptr_t)fst, (int)(intptr_t)snd); |
|
4e6abf09f540
6912062: disassembler plugin needs to produce symbolic information in product mode
jrose
parents:
1141
diff
changeset
|
2630 } |
|
4e6abf09f540
6912062: disassembler plugin needs to produce symbolic information in product mode
jrose
parents:
1141
diff
changeset
|
2631 stream->print(" "); |
|
4e6abf09f540
6912062: disassembler plugin needs to produce symbolic information in product mode
jrose
parents:
1141
diff
changeset
|
2632 stream->move_to(tab2); |
|
4e6abf09f540
6912062: disassembler plugin needs to produce symbolic information in product mode
jrose
parents:
1141
diff
changeset
|
2633 stream->print("= "); |
|
4e6abf09f540
6912062: disassembler plugin needs to produce symbolic information in product mode
jrose
parents:
1141
diff
changeset
|
2634 if (at_this) { |
|
4e6abf09f540
6912062: disassembler plugin needs to produce symbolic information in product mode
jrose
parents:
1141
diff
changeset
|
2635 m->method_holder()->print_value_on(stream); |
|
4e6abf09f540
6912062: disassembler plugin needs to produce symbolic information in product mode
jrose
parents:
1141
diff
changeset
|
2636 } else { |
|
4e6abf09f540
6912062: disassembler plugin needs to produce symbolic information in product mode
jrose
parents:
1141
diff
changeset
|
2637 bool did_name = false; |
|
4e6abf09f540
6912062: disassembler plugin needs to produce symbolic information in product mode
jrose
parents:
1141
diff
changeset
|
2638 if (!at_this && ss.is_object()) { |
|
4e6abf09f540
6912062: disassembler plugin needs to produce symbolic information in product mode
jrose
parents:
1141
diff
changeset
|
2639 symbolOop name = ss.as_symbol_or_null(); |
|
4e6abf09f540
6912062: disassembler plugin needs to produce symbolic information in product mode
jrose
parents:
1141
diff
changeset
|
2640 if (name != NULL) { |
|
4e6abf09f540
6912062: disassembler plugin needs to produce symbolic information in product mode
jrose
parents:
1141
diff
changeset
|
2641 name->print_value_on(stream); |
|
4e6abf09f540
6912062: disassembler plugin needs to produce symbolic information in product mode
jrose
parents:
1141
diff
changeset
|
2642 did_name = true; |
|
4e6abf09f540
6912062: disassembler plugin needs to produce symbolic information in product mode
jrose
parents:
1141
diff
changeset
|
2643 } |
|
4e6abf09f540
6912062: disassembler plugin needs to produce symbolic information in product mode
jrose
parents:
1141
diff
changeset
|
2644 } |
|
4e6abf09f540
6912062: disassembler plugin needs to produce symbolic information in product mode
jrose
parents:
1141
diff
changeset
|
2645 if (!did_name) |
|
4e6abf09f540
6912062: disassembler plugin needs to produce symbolic information in product mode
jrose
parents:
1141
diff
changeset
|
2646 stream->print("%s", type2name(t)); |
|
4e6abf09f540
6912062: disassembler plugin needs to produce symbolic information in product mode
jrose
parents:
1141
diff
changeset
|
2647 } |
|
4e6abf09f540
6912062: disassembler plugin needs to produce symbolic information in product mode
jrose
parents:
1141
diff
changeset
|
2648 if (at_old_sp) { |
|
4e6abf09f540
6912062: disassembler plugin needs to produce symbolic information in product mode
jrose
parents:
1141
diff
changeset
|
2649 stream->print(" (%s of caller)", spname); |
|
4e6abf09f540
6912062: disassembler plugin needs to produce symbolic information in product mode
jrose
parents:
1141
diff
changeset
|
2650 did_old_sp = true; |
|
4e6abf09f540
6912062: disassembler plugin needs to produce symbolic information in product mode
jrose
parents:
1141
diff
changeset
|
2651 } |
|
4e6abf09f540
6912062: disassembler plugin needs to produce symbolic information in product mode
jrose
parents:
1141
diff
changeset
|
2652 stream->cr(); |
|
4e6abf09f540
6912062: disassembler plugin needs to produce symbolic information in product mode
jrose
parents:
1141
diff
changeset
|
2653 sig_index += type2size[t]; |
|
4e6abf09f540
6912062: disassembler plugin needs to produce symbolic information in product mode
jrose
parents:
1141
diff
changeset
|
2654 arg_index += 1; |
|
4e6abf09f540
6912062: disassembler plugin needs to produce symbolic information in product mode
jrose
parents:
1141
diff
changeset
|
2655 if (!at_this) ss.next(); |
|
4e6abf09f540
6912062: disassembler plugin needs to produce symbolic information in product mode
jrose
parents:
1141
diff
changeset
|
2656 } |
|
4e6abf09f540
6912062: disassembler plugin needs to produce symbolic information in product mode
jrose
parents:
1141
diff
changeset
|
2657 if (!did_old_sp) { |
|
4e6abf09f540
6912062: disassembler plugin needs to produce symbolic information in product mode
jrose
parents:
1141
diff
changeset
|
2658 stream->print(" # "); |
|
4e6abf09f540
6912062: disassembler plugin needs to produce symbolic information in product mode
jrose
parents:
1141
diff
changeset
|
2659 stream->move_to(tab1); |
|
4e6abf09f540
6912062: disassembler plugin needs to produce symbolic information in product mode
jrose
parents:
1141
diff
changeset
|
2660 stream->print("[%s+0x%x]", spname, stack_slot_offset); |
|
4e6abf09f540
6912062: disassembler plugin needs to produce symbolic information in product mode
jrose
parents:
1141
diff
changeset
|
2661 stream->print(" (%s of caller)", spname); |
|
4e6abf09f540
6912062: disassembler plugin needs to produce symbolic information in product mode
jrose
parents:
1141
diff
changeset
|
2662 stream->cr(); |
|
4e6abf09f540
6912062: disassembler plugin needs to produce symbolic information in product mode
jrose
parents:
1141
diff
changeset
|
2663 } |
|
4e6abf09f540
6912062: disassembler plugin needs to produce symbolic information in product mode
jrose
parents:
1141
diff
changeset
|
2664 } |
|
4e6abf09f540
6912062: disassembler plugin needs to produce symbolic information in product mode
jrose
parents:
1141
diff
changeset
|
2665 } |
|
4e6abf09f540
6912062: disassembler plugin needs to produce symbolic information in product mode
jrose
parents:
1141
diff
changeset
|
2666 } |
|
4e6abf09f540
6912062: disassembler plugin needs to produce symbolic information in product mode
jrose
parents:
1141
diff
changeset
|
2667 |
| 0 | 2668 void nmethod::print_code_comment_on(outputStream* st, int column, u_char* begin, u_char* end) { |
| 2669 // First, find an oopmap in (begin, end]. | |
| 2670 // We use the odd half-closed interval so that oop maps and scope descs | |
| 2671 // which are tied to the byte after a call are printed with the call itself. | |
| 1748 | 2672 address base = code_begin(); |
| 0 | 2673 OopMapSet* oms = oop_maps(); |
| 2674 if (oms != NULL) { | |
| 2675 for (int i = 0, imax = oms->size(); i < imax; i++) { | |
| 2676 OopMap* om = oms->at(i); | |
| 2677 address pc = base + om->offset(); | |
| 2678 if (pc > begin) { | |
| 2679 if (pc <= end) { | |
|
100
c7c777385a15
6667042: PrintAssembly option does not work without special plugin
jrose
parents:
30
diff
changeset
|
2680 st->move_to(column); |
|
c7c777385a15
6667042: PrintAssembly option does not work without special plugin
jrose
parents:
30
diff
changeset
|
2681 st->print("; "); |
|
c7c777385a15
6667042: PrintAssembly option does not work without special plugin
jrose
parents:
30
diff
changeset
|
2682 om->print_on(st); |
| 0 | 2683 } |
| 2684 break; | |
| 2685 } | |
| 2686 } | |
| 2687 } | |
|
100
c7c777385a15
6667042: PrintAssembly option does not work without special plugin
jrose
parents:
30
diff
changeset
|
2688 |
|
c7c777385a15
6667042: PrintAssembly option does not work without special plugin
jrose
parents:
30
diff
changeset
|
2689 // Print any debug info present at this pc. |
| 0 | 2690 ScopeDesc* sd = scope_desc_in(begin, end); |
| 2691 if (sd != NULL) { | |
|
100
c7c777385a15
6667042: PrintAssembly option does not work without special plugin
jrose
parents:
30
diff
changeset
|
2692 st->move_to(column); |
| 0 | 2693 if (sd->bci() == SynchronizationEntryBCI) { |
| 2694 st->print(";*synchronization entry"); | |
| 2695 } else { | |
| 2696 if (sd->method().is_null()) { | |
|
100
c7c777385a15
6667042: PrintAssembly option does not work without special plugin
jrose
parents:
30
diff
changeset
|
2697 st->print("method is NULL"); |
| 0 | 2698 } else if (sd->method()->is_native()) { |
|
100
c7c777385a15
6667042: PrintAssembly option does not work without special plugin
jrose
parents:
30
diff
changeset
|
2699 st->print("method is native"); |
| 0 | 2700 } else { |
| 2142 | 2701 Bytecodes::Code bc = sd->method()->java_code_at(sd->bci()); |
| 0 | 2702 st->print(";*%s", Bytecodes::name(bc)); |
| 2703 switch (bc) { | |
| 2704 case Bytecodes::_invokevirtual: | |
| 2705 case Bytecodes::_invokespecial: | |
| 2706 case Bytecodes::_invokestatic: | |
| 2707 case Bytecodes::_invokeinterface: | |
| 2708 { | |
| 2142 | 2709 Bytecode_invoke invoke(sd->method(), sd->bci()); |
| 0 | 2710 st->print(" "); |
| 2142 | 2711 if (invoke.name() != NULL) |
| 2712 invoke.name()->print_symbol_on(st); | |
| 0 | 2713 else |
| 2714 st->print("<UNKNOWN>"); | |
| 2715 break; | |
| 2716 } | |
| 2717 case Bytecodes::_getfield: | |
| 2718 case Bytecodes::_putfield: | |
| 2719 case Bytecodes::_getstatic: | |
| 2720 case Bytecodes::_putstatic: | |
| 2721 { | |
| 2142 | 2722 Bytecode_field field(sd->method(), sd->bci()); |
| 0 | 2723 st->print(" "); |
| 2142 | 2724 if (field.name() != NULL) |
| 2725 field.name()->print_symbol_on(st); | |
| 0 | 2726 else |
| 2727 st->print("<UNKNOWN>"); | |
| 2728 } | |
| 2729 } | |
| 2730 } | |
| 2731 } | |
|
100
c7c777385a15
6667042: PrintAssembly option does not work without special plugin
jrose
parents:
30
diff
changeset
|
2732 |
| 0 | 2733 // Print all scopes |
| 2734 for (;sd != NULL; sd = sd->sender()) { | |
|
100
c7c777385a15
6667042: PrintAssembly option does not work without special plugin
jrose
parents:
30
diff
changeset
|
2735 st->move_to(column); |
| 0 | 2736 st->print("; -"); |
| 2737 if (sd->method().is_null()) { | |
|
100
c7c777385a15
6667042: PrintAssembly option does not work without special plugin
jrose
parents:
30
diff
changeset
|
2738 st->print("method is NULL"); |
| 0 | 2739 } else { |
| 2740 sd->method()->print_short_name(st); | |
| 2741 } | |
| 2742 int lineno = sd->method()->line_number_from_bci(sd->bci()); | |
| 2743 if (lineno != -1) { | |
| 2744 st->print("@%d (line %d)", sd->bci(), lineno); | |
| 2745 } else { | |
| 2746 st->print("@%d", sd->bci()); | |
| 2747 } | |
| 2748 st->cr(); | |
| 2749 } | |
| 2750 } | |
| 2751 | |
| 2752 // Print relocation information | |
| 2753 const char* str = reloc_string_for(begin, end); | |
| 2754 if (str != NULL) { | |
| 2755 if (sd != NULL) st->cr(); | |
|
100
c7c777385a15
6667042: PrintAssembly option does not work without special plugin
jrose
parents:
30
diff
changeset
|
2756 st->move_to(column); |
| 0 | 2757 st->print("; {%s}", str); |
| 2758 } | |
| 1748 | 2759 int cont_offset = ImplicitExceptionTable(this).at(begin - code_begin()); |
| 0 | 2760 if (cont_offset != 0) { |
|
100
c7c777385a15
6667042: PrintAssembly option does not work without special plugin
jrose
parents:
30
diff
changeset
|
2761 st->move_to(column); |
| 1748 | 2762 st->print("; implicit exception: dispatches to " INTPTR_FORMAT, code_begin() + cont_offset); |
| 0 | 2763 } |
| 2764 | |
| 2765 } | |
| 2766 | |
|
100
c7c777385a15
6667042: PrintAssembly option does not work without special plugin
jrose
parents:
30
diff
changeset
|
2767 #ifndef PRODUCT |
|
c7c777385a15
6667042: PrintAssembly option does not work without special plugin
jrose
parents:
30
diff
changeset
|
2768 |
| 0 | 2769 void nmethod::print_value_on(outputStream* st) const { |
| 2770 print_on(st, "nmethod"); | |
| 2771 } | |
| 2772 | |
| 2773 void nmethod::print_calls(outputStream* st) { | |
| 2774 RelocIterator iter(this); | |
| 2775 while (iter.next()) { | |
| 2776 switch (iter.type()) { | |
| 2777 case relocInfo::virtual_call_type: | |
| 2778 case relocInfo::opt_virtual_call_type: { | |
| 2779 VerifyMutexLocker mc(CompiledIC_lock); | |
| 2780 CompiledIC_at(iter.reloc())->print(); | |
| 2781 break; | |
| 2782 } | |
| 2783 case relocInfo::static_call_type: | |
| 2784 st->print_cr("Static call at " INTPTR_FORMAT, iter.reloc()->addr()); | |
| 2785 compiledStaticCall_at(iter.reloc())->print(); | |
| 2786 break; | |
| 2787 } | |
| 2788 } | |
| 2789 } | |
| 2790 | |
| 2791 void nmethod::print_handler_table() { | |
| 2792 ExceptionHandlerTable(this).print(); | |
| 2793 } | |
| 2794 | |
| 2795 void nmethod::print_nul_chk_table() { | |
| 1748 | 2796 ImplicitExceptionTable(this).print(code_begin()); |
| 0 | 2797 } |
| 2798 | |
| 2799 void nmethod::print_statistics() { | |
| 2800 ttyLocker ttyl; | |
| 2801 if (xtty != NULL) xtty->head("statistics type='nmethod'"); | |
| 2802 nmethod_stats.print_native_nmethod_stats(); | |
| 2803 nmethod_stats.print_nmethod_stats(); | |
| 2804 DebugInformationRecorder::print_statistics(); | |
| 2805 nmethod_stats.print_pc_stats(); | |
| 2806 Dependencies::print_statistics(); | |
| 2807 if (xtty != NULL) xtty->tail("statistics"); | |
| 2808 } | |
| 2809 | |
| 2810 #endif // PRODUCT |