Mercurial > hg > truffle
annotate src/share/vm/code/nmethod.cpp @ 4320:125678ef7587
Fix compiled method unloading.
| author | Andreas Woess <andreas.woess@jku.at> |
|---|---|
| date | Wed, 25 Jan 2012 14:09:59 +0100 |
| parents | 04b9a2566eec |
| children | 723df37192d6 35ca3ade314d |
| 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 * | |
|
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19 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA |
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20 * or visit www.oracle.com if you need additional information or have any |
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21 * questions. |
| 0 | 22 * |
| 23 */ | |
| 24 | |
| 1972 | 25 #include "precompiled.hpp" |
| 26 #include "code/codeCache.hpp" | |
| 27 #include "code/compiledIC.hpp" | |
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28 #include "code/dependencies.hpp" |
| 1972 | 29 #include "code/nmethod.hpp" |
| 30 #include "code/scopeDesc.hpp" | |
| 31 #include "compiler/abstractCompiler.hpp" | |
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32 #include "compiler/compileBroker.hpp" |
| 1972 | 33 #include "compiler/compileLog.hpp" |
| 34 #include "compiler/compilerOracle.hpp" | |
| 35 #include "compiler/disassembler.hpp" | |
| 36 #include "interpreter/bytecode.hpp" | |
| 37 #include "oops/methodDataOop.hpp" | |
| 38 #include "prims/jvmtiRedefineClassesTrace.hpp" | |
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39 #include "prims/jvmtiImpl.hpp" |
| 1972 | 40 #include "runtime/sharedRuntime.hpp" |
| 41 #include "runtime/sweeper.hpp" | |
| 42 #include "utilities/dtrace.hpp" | |
| 43 #include "utilities/events.hpp" | |
| 44 #include "utilities/xmlstream.hpp" | |
| 45 #ifdef SHARK | |
| 46 #include "shark/sharkCompiler.hpp" | |
| 47 #endif | |
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48 #ifdef GRAAL |
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49 #include "graal/graalJavaAccess.hpp" |
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50 #endif |
| 0 | 51 |
| 52 #ifdef DTRACE_ENABLED | |
| 53 | |
| 54 // Only bother with this argument setup if dtrace is available | |
| 55 | |
| 4006 | 56 #ifndef USDT2 |
| 0 | 57 HS_DTRACE_PROBE_DECL8(hotspot, compiled__method__load, |
| 58 const char*, int, const char*, int, const char*, int, void*, size_t); | |
| 59 | |
| 60 HS_DTRACE_PROBE_DECL6(hotspot, compiled__method__unload, | |
| 61 char*, int, char*, int, char*, int); | |
| 62 | |
| 63 #define DTRACE_METHOD_UNLOAD_PROBE(method) \ | |
| 64 { \ | |
| 65 methodOop m = (method); \ | |
| 66 if (m != NULL) { \ | |
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67 Symbol* klass_name = m->klass_name(); \ |
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68 Symbol* name = m->name(); \ |
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69 Symbol* signature = m->signature(); \ |
| 0 | 70 HS_DTRACE_PROBE6(hotspot, compiled__method__unload, \ |
| 71 klass_name->bytes(), klass_name->utf8_length(), \ | |
| 72 name->bytes(), name->utf8_length(), \ | |
| 73 signature->bytes(), signature->utf8_length()); \ | |
| 74 } \ | |
| 75 } | |
| 4006 | 76 #else /* USDT2 */ |
| 77 #define DTRACE_METHOD_UNLOAD_PROBE(method) \ | |
| 78 { \ | |
| 79 methodOop m = (method); \ | |
| 80 if (m != NULL) { \ | |
| 81 Symbol* klass_name = m->klass_name(); \ | |
| 82 Symbol* name = m->name(); \ | |
| 83 Symbol* signature = m->signature(); \ | |
| 84 HOTSPOT_COMPILED_METHOD_UNLOAD( \ | |
| 85 (char *) klass_name->bytes(), klass_name->utf8_length(), \ | |
| 86 (char *) name->bytes(), name->utf8_length(), \ | |
| 87 (char *) signature->bytes(), signature->utf8_length()); \ | |
| 88 } \ | |
| 89 } | |
| 90 #endif /* USDT2 */ | |
| 0 | 91 |
| 92 #else // ndef DTRACE_ENABLED | |
| 93 | |
| 94 #define DTRACE_METHOD_UNLOAD_PROBE(method) | |
| 95 | |
| 96 #endif | |
| 97 | |
| 98 bool nmethod::is_compiled_by_c1() const { | |
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99 if (compiler() == NULL || method() == NULL) return false; // can happen during debug printing |
| 0 | 100 if (is_native_method()) return false; |
| 101 return compiler()->is_c1(); | |
| 102 } | |
| 103 bool nmethod::is_compiled_by_c2() const { | |
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104 if (compiler() == NULL || method() == NULL) return false; // can happen during debug printing |
| 0 | 105 if (is_native_method()) return false; |
| 106 return compiler()->is_c2(); | |
| 107 } | |
| 1692 | 108 bool nmethod::is_compiled_by_shark() const { |
| 109 if (is_native_method()) return false; | |
| 110 assert(compiler() != NULL, "must be"); | |
| 111 return compiler()->is_shark(); | |
| 112 } | |
| 0 | 113 |
| 114 | |
| 115 | |
| 116 //--------------------------------------------------------------------------------- | |
| 117 // NMethod statistics | |
| 118 // They are printed under various flags, including: | |
| 119 // PrintC1Statistics, PrintOptoStatistics, LogVMOutput, and LogCompilation. | |
| 120 // (In the latter two cases, they like other stats are printed to the log only.) | |
| 121 | |
| 122 #ifndef PRODUCT | |
| 123 // These variables are put into one block to reduce relocations | |
| 124 // and make it simpler to print from the debugger. | |
| 125 static | |
| 126 struct nmethod_stats_struct { | |
| 127 int nmethod_count; | |
| 128 int total_size; | |
| 129 int relocation_size; | |
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130 int consts_size; |
| 1748 | 131 int insts_size; |
| 0 | 132 int stub_size; |
| 133 int scopes_data_size; | |
| 134 int scopes_pcs_size; | |
| 135 int dependencies_size; | |
| 136 int handler_table_size; | |
| 137 int nul_chk_table_size; | |
| 138 int oops_size; | |
| 139 | |
| 140 void note_nmethod(nmethod* nm) { | |
| 141 nmethod_count += 1; | |
| 142 total_size += nm->size(); | |
| 143 relocation_size += nm->relocation_size(); | |
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144 consts_size += nm->consts_size(); |
| 1748 | 145 insts_size += nm->insts_size(); |
| 0 | 146 stub_size += nm->stub_size(); |
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147 oops_size += nm->oops_size(); |
| 0 | 148 scopes_data_size += nm->scopes_data_size(); |
| 149 scopes_pcs_size += nm->scopes_pcs_size(); | |
| 150 dependencies_size += nm->dependencies_size(); | |
| 151 handler_table_size += nm->handler_table_size(); | |
| 152 nul_chk_table_size += nm->nul_chk_table_size(); | |
| 153 } | |
| 154 void print_nmethod_stats() { | |
| 155 if (nmethod_count == 0) return; | |
| 156 tty->print_cr("Statistics for %d bytecoded nmethods:", nmethod_count); | |
| 157 if (total_size != 0) tty->print_cr(" total in heap = %d", total_size); | |
| 158 if (relocation_size != 0) tty->print_cr(" relocation = %d", relocation_size); | |
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159 if (consts_size != 0) tty->print_cr(" constants = %d", consts_size); |
| 1748 | 160 if (insts_size != 0) tty->print_cr(" main code = %d", insts_size); |
| 0 | 161 if (stub_size != 0) tty->print_cr(" stub code = %d", stub_size); |
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162 if (oops_size != 0) tty->print_cr(" oops = %d", oops_size); |
| 0 | 163 if (scopes_data_size != 0) tty->print_cr(" scopes data = %d", scopes_data_size); |
| 164 if (scopes_pcs_size != 0) tty->print_cr(" scopes pcs = %d", scopes_pcs_size); | |
| 165 if (dependencies_size != 0) tty->print_cr(" dependencies = %d", dependencies_size); | |
| 166 if (handler_table_size != 0) tty->print_cr(" handler table = %d", handler_table_size); | |
| 167 if (nul_chk_table_size != 0) tty->print_cr(" nul chk table = %d", nul_chk_table_size); | |
| 168 } | |
| 169 | |
| 170 int native_nmethod_count; | |
| 171 int native_total_size; | |
| 172 int native_relocation_size; | |
| 1748 | 173 int native_insts_size; |
| 0 | 174 int native_oops_size; |
| 175 void note_native_nmethod(nmethod* nm) { | |
| 176 native_nmethod_count += 1; | |
| 177 native_total_size += nm->size(); | |
| 178 native_relocation_size += nm->relocation_size(); | |
| 1748 | 179 native_insts_size += nm->insts_size(); |
| 0 | 180 native_oops_size += nm->oops_size(); |
| 181 } | |
| 182 void print_native_nmethod_stats() { | |
| 183 if (native_nmethod_count == 0) return; | |
| 184 tty->print_cr("Statistics for %d native nmethods:", native_nmethod_count); | |
| 185 if (native_total_size != 0) tty->print_cr(" N. total size = %d", native_total_size); | |
| 186 if (native_relocation_size != 0) tty->print_cr(" N. relocation = %d", native_relocation_size); | |
| 1748 | 187 if (native_insts_size != 0) tty->print_cr(" N. main code = %d", native_insts_size); |
| 0 | 188 if (native_oops_size != 0) tty->print_cr(" N. oops = %d", native_oops_size); |
| 189 } | |
| 190 | |
| 191 int pc_desc_resets; // number of resets (= number of caches) | |
| 192 int pc_desc_queries; // queries to nmethod::find_pc_desc | |
| 193 int pc_desc_approx; // number of those which have approximate true | |
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194 int pc_desc_repeats; // number of _pc_descs[0] hits |
| 0 | 195 int pc_desc_hits; // number of LRU cache hits |
| 196 int pc_desc_tests; // total number of PcDesc examinations | |
| 197 int pc_desc_searches; // total number of quasi-binary search steps | |
| 198 int pc_desc_adds; // number of LUR cache insertions | |
| 199 | |
| 200 void print_pc_stats() { | |
| 201 tty->print_cr("PcDesc Statistics: %d queries, %.2f comparisons per query", | |
| 202 pc_desc_queries, | |
| 203 (double)(pc_desc_tests + pc_desc_searches) | |
| 204 / pc_desc_queries); | |
| 205 tty->print_cr(" caches=%d queries=%d/%d, hits=%d+%d, tests=%d+%d, adds=%d", | |
| 206 pc_desc_resets, | |
| 207 pc_desc_queries, pc_desc_approx, | |
| 208 pc_desc_repeats, pc_desc_hits, | |
| 209 pc_desc_tests, pc_desc_searches, pc_desc_adds); | |
| 210 } | |
| 211 } nmethod_stats; | |
| 212 #endif //PRODUCT | |
| 213 | |
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214 |
| 0 | 215 //--------------------------------------------------------------------------------- |
| 216 | |
| 217 | |
| 218 ExceptionCache::ExceptionCache(Handle exception, address pc, address handler) { | |
| 219 assert(pc != NULL, "Must be non null"); | |
| 220 assert(exception.not_null(), "Must be non null"); | |
| 221 assert(handler != NULL, "Must be non null"); | |
| 222 | |
| 223 _count = 0; | |
| 224 _exception_type = exception->klass(); | |
| 225 _next = NULL; | |
| 226 | |
| 227 add_address_and_handler(pc,handler); | |
| 228 } | |
| 229 | |
| 230 | |
| 231 address ExceptionCache::match(Handle exception, address pc) { | |
| 232 assert(pc != NULL,"Must be non null"); | |
| 233 assert(exception.not_null(),"Must be non null"); | |
| 234 if (exception->klass() == exception_type()) { | |
| 235 return (test_address(pc)); | |
| 236 } | |
| 237 | |
| 238 return NULL; | |
| 239 } | |
| 240 | |
| 241 | |
| 242 bool ExceptionCache::match_exception_with_space(Handle exception) { | |
| 243 assert(exception.not_null(),"Must be non null"); | |
| 244 if (exception->klass() == exception_type() && count() < cache_size) { | |
| 245 return true; | |
| 246 } | |
| 247 return false; | |
| 248 } | |
| 249 | |
| 250 | |
| 251 address ExceptionCache::test_address(address addr) { | |
| 252 for (int i=0; i<count(); i++) { | |
| 253 if (pc_at(i) == addr) { | |
| 254 return handler_at(i); | |
| 255 } | |
| 256 } | |
| 257 return NULL; | |
| 258 } | |
| 259 | |
| 260 | |
| 261 bool ExceptionCache::add_address_and_handler(address addr, address handler) { | |
| 262 if (test_address(addr) == handler) return true; | |
| 263 if (count() < cache_size) { | |
| 264 set_pc_at(count(),addr); | |
| 265 set_handler_at(count(), handler); | |
| 266 increment_count(); | |
| 267 return true; | |
| 268 } | |
| 269 return false; | |
| 270 } | |
| 271 | |
| 272 | |
| 273 // private method for handling exception cache | |
| 274 // These methods are private, and used to manipulate the exception cache | |
| 275 // directly. | |
| 276 ExceptionCache* nmethod::exception_cache_entry_for_exception(Handle exception) { | |
| 277 ExceptionCache* ec = exception_cache(); | |
| 278 while (ec != NULL) { | |
| 279 if (ec->match_exception_with_space(exception)) { | |
| 280 return ec; | |
| 281 } | |
| 282 ec = ec->next(); | |
| 283 } | |
| 284 return NULL; | |
| 285 } | |
| 286 | |
| 287 | |
| 288 //----------------------------------------------------------------------------- | |
| 289 | |
| 290 | |
| 291 // Helper used by both find_pc_desc methods. | |
| 292 static inline bool match_desc(PcDesc* pc, int pc_offset, bool approximate) { | |
| 293 NOT_PRODUCT(++nmethod_stats.pc_desc_tests); | |
| 294 if (!approximate) | |
| 295 return pc->pc_offset() == pc_offset; | |
| 296 else | |
| 297 return (pc-1)->pc_offset() < pc_offset && pc_offset <= pc->pc_offset(); | |
| 298 } | |
| 299 | |
| 300 void PcDescCache::reset_to(PcDesc* initial_pc_desc) { | |
| 301 if (initial_pc_desc == NULL) { | |
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302 _pc_descs[0] = NULL; // native method; no PcDescs at all |
| 0 | 303 return; |
| 304 } | |
| 305 NOT_PRODUCT(++nmethod_stats.pc_desc_resets); | |
| 306 // reset the cache by filling it with benign (non-null) values | |
| 307 assert(initial_pc_desc->pc_offset() < 0, "must be sentinel"); | |
| 308 for (int i = 0; i < cache_size; i++) | |
| 309 _pc_descs[i] = initial_pc_desc; | |
| 310 } | |
| 311 | |
| 312 PcDesc* PcDescCache::find_pc_desc(int pc_offset, bool approximate) { | |
| 313 NOT_PRODUCT(++nmethod_stats.pc_desc_queries); | |
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314 NOT_PRODUCT(if (approximate) ++nmethod_stats.pc_desc_approx); |
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315 |
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316 // Note: one might think that caching the most recently |
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317 // read value separately would be a win, but one would be |
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318 // wrong. When many threads are updating it, the cache |
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319 // line it's in would bounce between caches, negating |
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320 // any benefit. |
| 0 | 321 |
| 322 // In order to prevent race conditions do not load cache elements | |
| 323 // repeatedly, but use a local copy: | |
| 324 PcDesc* res; | |
| 325 | |
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326 // Step one: Check the most recently added value. |
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327 res = _pc_descs[0]; |
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328 if (res == NULL) return NULL; // native method; no PcDescs at all |
| 0 | 329 if (match_desc(res, pc_offset, approximate)) { |
| 330 NOT_PRODUCT(++nmethod_stats.pc_desc_repeats); | |
| 331 return res; | |
| 332 } | |
| 333 | |
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334 // Step two: Check the rest of the LRU cache. |
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335 for (int i = 1; i < cache_size; ++i) { |
| 0 | 336 res = _pc_descs[i]; |
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337 if (res->pc_offset() < 0) break; // optimization: skip empty cache |
| 0 | 338 if (match_desc(res, pc_offset, approximate)) { |
| 339 NOT_PRODUCT(++nmethod_stats.pc_desc_hits); | |
| 340 return res; | |
| 341 } | |
| 342 } | |
| 343 | |
| 344 // Report failure. | |
| 345 return NULL; | |
| 346 } | |
| 347 | |
| 348 void PcDescCache::add_pc_desc(PcDesc* pc_desc) { | |
| 349 NOT_PRODUCT(++nmethod_stats.pc_desc_adds); | |
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350 // Update the LRU cache by shifting pc_desc forward. |
| 0 | 351 for (int i = 0; i < cache_size; i++) { |
| 352 PcDesc* next = _pc_descs[i]; | |
| 353 _pc_descs[i] = pc_desc; | |
| 354 pc_desc = next; | |
| 355 } | |
| 356 } | |
| 357 | |
| 358 // adjust pcs_size so that it is a multiple of both oopSize and | |
| 359 // sizeof(PcDesc) (assumes that if sizeof(PcDesc) is not a multiple | |
| 360 // of oopSize, then 2*sizeof(PcDesc) is) | |
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361 static int adjust_pcs_size(int pcs_size) { |
| 0 | 362 int nsize = round_to(pcs_size, oopSize); |
| 363 if ((nsize % sizeof(PcDesc)) != 0) { | |
| 364 nsize = pcs_size + sizeof(PcDesc); | |
| 365 } | |
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366 assert((nsize % oopSize) == 0, "correct alignment"); |
| 0 | 367 return nsize; |
| 368 } | |
| 369 | |
| 370 //----------------------------------------------------------------------------- | |
| 371 | |
| 372 | |
| 373 void nmethod::add_exception_cache_entry(ExceptionCache* new_entry) { | |
| 374 assert(ExceptionCache_lock->owned_by_self(),"Must hold the ExceptionCache_lock"); | |
| 375 assert(new_entry != NULL,"Must be non null"); | |
| 376 assert(new_entry->next() == NULL, "Must be null"); | |
| 377 | |
| 378 if (exception_cache() != NULL) { | |
| 379 new_entry->set_next(exception_cache()); | |
| 380 } | |
| 381 set_exception_cache(new_entry); | |
| 382 } | |
| 383 | |
| 384 void nmethod::remove_from_exception_cache(ExceptionCache* ec) { | |
| 385 ExceptionCache* prev = NULL; | |
| 386 ExceptionCache* curr = exception_cache(); | |
| 387 assert(curr != NULL, "nothing to remove"); | |
| 388 // find the previous and next entry of ec | |
| 389 while (curr != ec) { | |
| 390 prev = curr; | |
| 391 curr = curr->next(); | |
| 392 assert(curr != NULL, "ExceptionCache not found"); | |
| 393 } | |
| 394 // now: curr == ec | |
| 395 ExceptionCache* next = curr->next(); | |
| 396 if (prev == NULL) { | |
| 397 set_exception_cache(next); | |
| 398 } else { | |
| 399 prev->set_next(next); | |
| 400 } | |
| 401 delete curr; | |
| 402 } | |
| 403 | |
| 404 | |
| 405 // public method for accessing the exception cache | |
| 406 // These are the public access methods. | |
| 407 address nmethod::handler_for_exception_and_pc(Handle exception, address pc) { | |
| 408 // We never grab a lock to read the exception cache, so we may | |
| 409 // have false negatives. This is okay, as it can only happen during | |
| 410 // the first few exception lookups for a given nmethod. | |
| 411 ExceptionCache* ec = exception_cache(); | |
| 412 while (ec != NULL) { | |
| 413 address ret_val; | |
| 414 if ((ret_val = ec->match(exception,pc)) != NULL) { | |
| 415 return ret_val; | |
| 416 } | |
| 417 ec = ec->next(); | |
| 418 } | |
| 419 return NULL; | |
| 420 } | |
| 421 | |
| 422 | |
| 423 void nmethod::add_handler_for_exception_and_pc(Handle exception, address pc, address handler) { | |
| 424 // There are potential race conditions during exception cache updates, so we | |
| 425 // must own the ExceptionCache_lock before doing ANY modifications. Because | |
| 605 | 426 // we don't lock during reads, it is possible to have several threads attempt |
| 0 | 427 // to update the cache with the same data. We need to check for already inserted |
| 428 // copies of the current data before adding it. | |
| 429 | |
| 430 MutexLocker ml(ExceptionCache_lock); | |
| 431 ExceptionCache* target_entry = exception_cache_entry_for_exception(exception); | |
| 432 | |
| 433 if (target_entry == NULL || !target_entry->add_address_and_handler(pc,handler)) { | |
| 434 target_entry = new ExceptionCache(exception,pc,handler); | |
| 435 add_exception_cache_entry(target_entry); | |
| 436 } | |
| 437 } | |
| 438 | |
| 439 | |
| 440 //-------------end of code for ExceptionCache-------------- | |
| 441 | |
| 442 | |
| 443 int nmethod::total_size() const { | |
| 444 return | |
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445 consts_size() + |
| 1748 | 446 insts_size() + |
| 0 | 447 stub_size() + |
| 448 scopes_data_size() + | |
| 449 scopes_pcs_size() + | |
| 450 handler_table_size() + | |
| 451 nul_chk_table_size(); | |
| 452 } | |
| 453 | |
| 454 const char* nmethod::compile_kind() const { | |
| 455 if (is_osr_method()) return "osr"; | |
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456 if (method() != NULL && is_native_method()) return "c2n"; |
| 0 | 457 return NULL; |
| 458 } | |
| 459 | |
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460 // Fill in default values for various flag fields |
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461 void nmethod::init_defaults() { |
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462 _state = alive; |
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463 _marked_for_reclamation = 0; |
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464 _has_flushed_dependencies = 0; |
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465 _speculatively_disconnected = 0; |
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466 _has_unsafe_access = 0; |
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467 _has_method_handle_invokes = 0; |
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468 _marked_for_deoptimization = 0; |
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469 _lock_count = 0; |
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470 _stack_traversal_mark = 0; |
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471 _unload_reported = false; // jvmti state |
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472 |
| 1726 | 473 #ifdef ASSERT |
| 474 _oops_are_stale = false; | |
| 475 #endif | |
| 476 | |
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477 _oops_do_mark_link = NULL; |
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478 _jmethod_id = NULL; |
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479 _osr_link = NULL; |
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480 _scavenge_root_link = NULL; |
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481 _scavenge_root_state = 0; |
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482 _saved_nmethod_link = NULL; |
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483 _compiler = NULL; |
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484 |
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485 _graal_compiled_method = NULL; |
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486 |
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487 #ifdef HAVE_DTRACE_H |
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488 _trap_offset = 0; |
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489 #endif // def HAVE_DTRACE_H |
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490 } |
| 0 | 491 |
| 492 | |
| 493 nmethod* nmethod::new_native_nmethod(methodHandle method, | |
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494 int compile_id, |
| 0 | 495 CodeBuffer *code_buffer, |
| 496 int vep_offset, | |
| 497 int frame_complete, | |
| 498 int frame_size, | |
| 499 ByteSize basic_lock_owner_sp_offset, | |
| 500 ByteSize basic_lock_sp_offset, | |
| 501 OopMapSet* oop_maps) { | |
| 502 // create nmethod | |
| 503 nmethod* nm = NULL; | |
| 504 { | |
| 505 MutexLockerEx mu(CodeCache_lock, Mutex::_no_safepoint_check_flag); | |
| 506 int native_nmethod_size = allocation_size(code_buffer, sizeof(nmethod)); | |
| 507 CodeOffsets offsets; | |
| 508 offsets.set_value(CodeOffsets::Verified_Entry, vep_offset); | |
| 509 offsets.set_value(CodeOffsets::Frame_Complete, frame_complete); | |
| 510 nm = new (native_nmethod_size) | |
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511 nmethod(method(), native_nmethod_size, compile_id, &offsets, |
| 0 | 512 code_buffer, frame_size, |
| 513 basic_lock_owner_sp_offset, basic_lock_sp_offset, | |
| 514 oop_maps); | |
| 515 NOT_PRODUCT(if (nm != NULL) nmethod_stats.note_native_nmethod(nm)); | |
| 516 if (PrintAssembly && nm != NULL) | |
| 517 Disassembler::decode(nm); | |
| 518 } | |
| 519 // verify nmethod | |
| 520 debug_only(if (nm) nm->verify();) // might block | |
| 521 | |
| 522 if (nm != NULL) { | |
| 523 nm->log_new_nmethod(); | |
| 524 } | |
| 525 | |
| 526 return nm; | |
| 527 } | |
| 528 | |
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529 #ifdef HAVE_DTRACE_H |
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530 nmethod* nmethod::new_dtrace_nmethod(methodHandle method, |
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531 CodeBuffer *code_buffer, |
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532 int vep_offset, |
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533 int trap_offset, |
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534 int frame_complete, |
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535 int frame_size) { |
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536 // create nmethod |
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537 nmethod* nm = NULL; |
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538 { |
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539 MutexLockerEx mu(CodeCache_lock, Mutex::_no_safepoint_check_flag); |
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540 int nmethod_size = allocation_size(code_buffer, sizeof(nmethod)); |
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541 CodeOffsets offsets; |
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542 offsets.set_value(CodeOffsets::Verified_Entry, vep_offset); |
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543 offsets.set_value(CodeOffsets::Dtrace_trap, trap_offset); |
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544 offsets.set_value(CodeOffsets::Frame_Complete, frame_complete); |
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545 |
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546 nm = new (nmethod_size) nmethod(method(), nmethod_size, &offsets, code_buffer, frame_size); |
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547 |
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548 NOT_PRODUCT(if (nm != NULL) nmethod_stats.note_nmethod(nm)); |
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549 if (PrintAssembly && nm != NULL) |
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550 Disassembler::decode(nm); |
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551 } |
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552 // verify nmethod |
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553 debug_only(if (nm) nm->verify();) // might block |
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554 |
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555 if (nm != NULL) { |
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556 nm->log_new_nmethod(); |
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557 } |
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558 |
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559 return nm; |
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560 } |
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561 |
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562 #endif // def HAVE_DTRACE_H |
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563 |
| 0 | 564 nmethod* nmethod::new_nmethod(methodHandle method, |
| 565 int compile_id, | |
| 566 int entry_bci, | |
| 567 CodeOffsets* offsets, | |
| 568 int orig_pc_offset, | |
| 569 DebugInformationRecorder* debug_info, | |
| 570 Dependencies* dependencies, | |
| 571 CodeBuffer* code_buffer, int frame_size, | |
| 572 OopMapSet* oop_maps, | |
| 573 ExceptionHandlerTable* handler_table, | |
| 574 ImplicitExceptionTable* nul_chk_table, | |
| 575 AbstractCompiler* compiler, | |
| 576 int comp_level | |
| 577 ) | |
| 578 { | |
| 579 assert(debug_info->oop_recorder() == code_buffer->oop_recorder(), "shared OR"); | |
| 580 // create nmethod | |
| 581 nmethod* nm = NULL; | |
| 582 { MutexLockerEx mu(CodeCache_lock, Mutex::_no_safepoint_check_flag); | |
| 583 int nmethod_size = | |
| 584 allocation_size(code_buffer, sizeof(nmethod)) | |
| 585 + adjust_pcs_size(debug_info->pcs_size()) | |
| 586 + round_to(dependencies->size_in_bytes() , oopSize) | |
| 587 + round_to(handler_table->size_in_bytes(), oopSize) | |
| 588 + round_to(nul_chk_table->size_in_bytes(), oopSize) | |
| 589 + round_to(debug_info->data_size() , oopSize); | |
| 590 nm = new (nmethod_size) | |
| 591 nmethod(method(), nmethod_size, compile_id, entry_bci, offsets, | |
| 592 orig_pc_offset, debug_info, dependencies, code_buffer, frame_size, | |
| 593 oop_maps, | |
| 594 handler_table, | |
| 595 nul_chk_table, | |
| 596 compiler, | |
| 597 comp_level); | |
| 598 if (nm != NULL) { | |
| 599 // To make dependency checking during class loading fast, record | |
| 600 // the nmethod dependencies in the classes it is dependent on. | |
| 601 // This allows the dependency checking code to simply walk the | |
| 602 // class hierarchy above the loaded class, checking only nmethods | |
| 603 // which are dependent on those classes. The slow way is to | |
| 604 // check every nmethod for dependencies which makes it linear in | |
| 605 // the number of methods compiled. For applications with a lot | |
| 606 // classes the slow way is too slow. | |
| 607 for (Dependencies::DepStream deps(nm); deps.next(); ) { | |
| 608 klassOop klass = deps.context_type(); | |
| 609 if (klass == NULL) continue; // ignore things like evol_method | |
| 610 | |
| 611 // record this nmethod as dependent on this klass | |
| 612 instanceKlass::cast(klass)->add_dependent_nmethod(nm); | |
| 613 } | |
| 614 } | |
| 615 NOT_PRODUCT(if (nm != NULL) nmethod_stats.note_nmethod(nm)); | |
| 616 if (PrintAssembly && nm != NULL) | |
| 617 Disassembler::decode(nm); | |
| 618 } | |
| 619 | |
| 620 // verify nmethod | |
| 621 debug_only(if (nm) nm->verify();) // might block | |
| 622 | |
| 623 if (nm != NULL) { | |
| 624 nm->log_new_nmethod(); | |
| 625 } | |
| 626 | |
| 627 // done | |
| 628 return nm; | |
| 629 } | |
| 630 | |
| 631 | |
| 632 // For native wrappers | |
| 633 nmethod::nmethod( | |
| 634 methodOop method, | |
| 635 int nmethod_size, | |
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636 int compile_id, |
| 0 | 637 CodeOffsets* offsets, |
| 638 CodeBuffer* code_buffer, | |
| 639 int frame_size, | |
| 640 ByteSize basic_lock_owner_sp_offset, | |
| 641 ByteSize basic_lock_sp_offset, | |
| 642 OopMapSet* oop_maps ) | |
| 643 : CodeBlob("native nmethod", code_buffer, sizeof(nmethod), | |
| 644 nmethod_size, offsets->value(CodeOffsets::Frame_Complete), frame_size, oop_maps), | |
| 2019 | 645 _native_receiver_sp_offset(basic_lock_owner_sp_offset), |
| 646 _native_basic_lock_sp_offset(basic_lock_sp_offset) | |
| 0 | 647 { |
| 648 { | |
| 649 debug_only(No_Safepoint_Verifier nsv;) | |
| 650 assert_locked_or_safepoint(CodeCache_lock); | |
| 651 | |
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652 init_defaults(); |
| 0 | 653 _method = method; |
| 654 _entry_bci = InvocationEntryBci; | |
| 655 // We have no exception handler or deopt handler make the | |
| 656 // values something that will never match a pc like the nmethod vtable entry | |
| 657 _exception_offset = 0; | |
| 658 _deoptimize_offset = 0; | |
| 1204 | 659 _deoptimize_mh_offset = 0; |
| 0 | 660 _orig_pc_offset = 0; |
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661 |
| 1748 | 662 _consts_offset = data_offset(); |
| 0 | 663 _stub_offset = data_offset(); |
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664 _oops_offset = data_offset(); |
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665 _scopes_data_offset = _oops_offset + round_to(code_buffer->total_oop_size(), oopSize); |
| 0 | 666 _scopes_pcs_offset = _scopes_data_offset; |
| 667 _dependencies_offset = _scopes_pcs_offset; | |
| 668 _handler_table_offset = _dependencies_offset; | |
| 669 _nul_chk_table_offset = _handler_table_offset; | |
| 670 _nmethod_end_offset = _nul_chk_table_offset; | |
|
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671 _compile_id = compile_id; |
| 0 | 672 _comp_level = CompLevel_none; |
| 1748 | 673 _entry_point = code_begin() + offsets->value(CodeOffsets::Entry); |
| 674 _verified_entry_point = code_begin() + offsets->value(CodeOffsets::Verified_Entry); | |
| 0 | 675 _osr_entry_point = NULL; |
| 676 _exception_cache = NULL; | |
| 677 _pc_desc_cache.reset_to(NULL); | |
| 678 | |
| 679 code_buffer->copy_oops_to(this); | |
|
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680 if (ScavengeRootsInCode && detect_scavenge_root_oops()) { |
|
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681 CodeCache::add_scavenge_root_nmethod(this); |
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682 } |
|
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683 debug_only(verify_scavenge_root_oops()); |
| 0 | 684 CodeCache::commit(this); |
| 685 } | |
| 686 | |
| 687 if (PrintNativeNMethods || PrintDebugInfo || PrintRelocations || PrintDependencies) { | |
| 688 ttyLocker ttyl; // keep the following output all in one block | |
| 689 // This output goes directly to the tty, not the compiler log. | |
| 690 // To enable tools to match it up with the compilation activity, | |
| 691 // be sure to tag this tty output with the compile ID. | |
| 692 if (xtty != NULL) { | |
| 693 xtty->begin_head("print_native_nmethod"); | |
| 694 xtty->method(_method); | |
| 695 xtty->stamp(); | |
| 696 xtty->end_head(" address='" INTPTR_FORMAT "'", (intptr_t) this); | |
| 697 } | |
| 698 // print the header part first | |
| 699 print(); | |
| 700 // then print the requested information | |
| 701 if (PrintNativeNMethods) { | |
| 702 print_code(); | |
| 703 oop_maps->print(); | |
| 704 } | |
| 705 if (PrintRelocations) { | |
| 706 print_relocations(); | |
| 707 } | |
| 708 if (xtty != NULL) { | |
| 709 xtty->tail("print_native_nmethod"); | |
| 710 } | |
| 711 } | |
| 712 Events::log("Create nmethod " INTPTR_FORMAT, this); | |
| 713 } | |
| 714 | |
|
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715 // For dtrace wrappers |
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716 #ifdef HAVE_DTRACE_H |
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717 nmethod::nmethod( |
|
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718 methodOop method, |
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719 int nmethod_size, |
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720 CodeOffsets* offsets, |
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721 CodeBuffer* code_buffer, |
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722 int frame_size) |
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723 : CodeBlob("dtrace nmethod", code_buffer, sizeof(nmethod), |
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724 nmethod_size, offsets->value(CodeOffsets::Frame_Complete), frame_size, NULL), |
| 2019 | 725 _native_receiver_sp_offset(in_ByteSize(-1)), |
| 726 _native_basic_lock_sp_offset(in_ByteSize(-1)) | |
|
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727 { |
|
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728 { |
|
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729 debug_only(No_Safepoint_Verifier nsv;) |
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730 assert_locked_or_safepoint(CodeCache_lock); |
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731 |
|
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732 init_defaults(); |
|
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733 _method = method; |
|
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734 _entry_bci = InvocationEntryBci; |
|
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735 // We have no exception handler or deopt handler make the |
|
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736 // values something that will never match a pc like the nmethod vtable entry |
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737 _exception_offset = 0; |
|
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738 _deoptimize_offset = 0; |
| 1204 | 739 _deoptimize_mh_offset = 0; |
|
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740 _unwind_handler_offset = -1; |
|
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741 _trap_offset = offsets->value(CodeOffsets::Dtrace_trap); |
|
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742 _orig_pc_offset = 0; |
| 1748 | 743 _consts_offset = data_offset(); |
|
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744 _stub_offset = data_offset(); |
|
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745 _oops_offset = data_offset(); |
|
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746 _scopes_data_offset = _oops_offset + round_to(code_buffer->total_oop_size(), oopSize); |
|
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747 _scopes_pcs_offset = _scopes_data_offset; |
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748 _dependencies_offset = _scopes_pcs_offset; |
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749 _handler_table_offset = _dependencies_offset; |
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750 _nul_chk_table_offset = _handler_table_offset; |
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751 _nmethod_end_offset = _nul_chk_table_offset; |
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752 _compile_id = 0; // default |
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753 _comp_level = CompLevel_none; |
| 1748 | 754 _entry_point = code_begin() + offsets->value(CodeOffsets::Entry); |
| 755 _verified_entry_point = code_begin() + offsets->value(CodeOffsets::Verified_Entry); | |
|
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756 _osr_entry_point = NULL; |
|
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757 _exception_cache = NULL; |
|
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758 _pc_desc_cache.reset_to(NULL); |
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759 |
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|
760 code_buffer->copy_oops_to(this); |
|
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761 debug_only(verify_scavenge_root_oops()); |
|
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762 CodeCache::commit(this); |
|
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763 } |
|
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764 |
|
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765 if (PrintNMethods || PrintDebugInfo || PrintRelocations || PrintDependencies) { |
|
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766 ttyLocker ttyl; // keep the following output all in one block |
|
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767 // This output goes directly to the tty, not the compiler log. |
|
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768 // To enable tools to match it up with the compilation activity, |
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769 // be sure to tag this tty output with the compile ID. |
|
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770 if (xtty != NULL) { |
|
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771 xtty->begin_head("print_dtrace_nmethod"); |
|
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772 xtty->method(_method); |
|
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773 xtty->stamp(); |
|
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774 xtty->end_head(" address='" INTPTR_FORMAT "'", (intptr_t) this); |
|
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775 } |
|
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776 // print the header part first |
|
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777 print(); |
|
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778 // then print the requested information |
|
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779 if (PrintNMethods) { |
|
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780 print_code(); |
|
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781 } |
|
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782 if (PrintRelocations) { |
|
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783 print_relocations(); |
|
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784 } |
|
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785 if (xtty != NULL) { |
|
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786 xtty->tail("print_dtrace_nmethod"); |
|
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|
787 } |
|
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788 } |
|
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|
789 Events::log("Create nmethod " INTPTR_FORMAT, this); |
|
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790 } |
|
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791 #endif // def HAVE_DTRACE_H |
| 0 | 792 |
| 793 void* nmethod::operator new(size_t size, int nmethod_size) { | |
| 794 // Always leave some room in the CodeCache for I2C/C2I adapters | |
|
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795 if (CodeCache::largest_free_block() < CodeCacheMinimumFreeSpace) return NULL; |
| 0 | 796 return CodeCache::allocate(nmethod_size); |
| 797 } | |
| 798 | |
| 799 | |
| 800 nmethod::nmethod( | |
| 801 methodOop method, | |
| 802 int nmethod_size, | |
| 803 int compile_id, | |
| 804 int entry_bci, | |
| 805 CodeOffsets* offsets, | |
| 806 int orig_pc_offset, | |
| 807 DebugInformationRecorder* debug_info, | |
| 808 Dependencies* dependencies, | |
| 809 CodeBuffer *code_buffer, | |
| 810 int frame_size, | |
| 811 OopMapSet* oop_maps, | |
| 812 ExceptionHandlerTable* handler_table, | |
| 813 ImplicitExceptionTable* nul_chk_table, | |
| 814 AbstractCompiler* compiler, | |
| 815 int comp_level | |
| 816 ) | |
| 817 : CodeBlob("nmethod", code_buffer, sizeof(nmethod), | |
| 818 nmethod_size, offsets->value(CodeOffsets::Frame_Complete), frame_size, oop_maps), | |
| 2019 | 819 _native_receiver_sp_offset(in_ByteSize(-1)), |
| 820 _native_basic_lock_sp_offset(in_ByteSize(-1)) | |
| 0 | 821 { |
| 822 assert(debug_info->oop_recorder() == code_buffer->oop_recorder(), "shared OR"); | |
| 823 { | |
| 824 debug_only(No_Safepoint_Verifier nsv;) | |
| 825 assert_locked_or_safepoint(CodeCache_lock); | |
| 826 | |
|
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827 init_defaults(); |
| 0 | 828 _method = method; |
|
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829 _entry_bci = entry_bci; |
| 0 | 830 _compile_id = compile_id; |
| 831 _comp_level = comp_level; | |
| 832 _compiler = compiler; | |
| 833 _orig_pc_offset = orig_pc_offset; | |
| 1748 | 834 |
| 835 // Section offsets | |
|
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836 _consts_offset = content_offset() + code_buffer->total_offset_of(code_buffer->consts()); |
|
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837 _stub_offset = content_offset() + code_buffer->total_offset_of(code_buffer->stubs()); |
| 0 | 838 |
| 839 // Exception handler and deopt handler are in the stub section | |
|
2083
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|
840 assert(offsets->value(CodeOffsets::Exceptions) != -1, "must be set"); |
|
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|
841 assert(offsets->value(CodeOffsets::Deopt ) != -1, "must be set"); |
|
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|
842 if (UseGraal) { |
|
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|
843 // graal produces no (!) stub section |
|
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|
844 _exception_offset = code_offset() + offsets->value(CodeOffsets::Exceptions); |
|
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|
845 _deoptimize_offset = code_offset() + offsets->value(CodeOffsets::Deopt); |
| 2106 | 846 if (offsets->value(CodeOffsets::DeoptMH) != -1) { |
|
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|
847 _deoptimize_mh_offset = code_offset() + offsets->value(CodeOffsets::DeoptMH); |
| 1930 | 848 } else { |
| 849 _deoptimize_mh_offset = -1; | |
| 850 } | |
|
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851 } else { |
| 1930 | 852 _exception_offset = _stub_offset + offsets->value(CodeOffsets::Exceptions); |
| 853 _deoptimize_offset = _stub_offset + offsets->value(CodeOffsets::Deopt); | |
| 2106 | 854 if (offsets->value(CodeOffsets::DeoptMH) != -1) { |
| 1930 | 855 _deoptimize_mh_offset = _stub_offset + offsets->value(CodeOffsets::DeoptMH); |
| 856 } else { | |
| 857 _deoptimize_mh_offset = -1; | |
| 858 } | |
|
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859 } |
|
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860 if (offsets->value(CodeOffsets::UnwindHandler) != -1) { |
| 1748 | 861 _unwind_handler_offset = code_offset() + offsets->value(CodeOffsets::UnwindHandler); |
|
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862 } else { |
| 1748 | 863 _unwind_handler_offset = -1; |
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864 } |
| 1748 | 865 |
|
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866 _oops_offset = data_offset(); |
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867 _scopes_data_offset = _oops_offset + round_to(code_buffer->total_oop_size (), oopSize); |
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868 _scopes_pcs_offset = _scopes_data_offset + round_to(debug_info->data_size (), oopSize); |
| 0 | 869 _dependencies_offset = _scopes_pcs_offset + adjust_pcs_size(debug_info->pcs_size()); |
| 870 _handler_table_offset = _dependencies_offset + round_to(dependencies->size_in_bytes (), oopSize); | |
| 871 _nul_chk_table_offset = _handler_table_offset + round_to(handler_table->size_in_bytes(), oopSize); | |
| 872 _nmethod_end_offset = _nul_chk_table_offset + round_to(nul_chk_table->size_in_bytes(), oopSize); | |
| 873 | |
| 1748 | 874 _entry_point = code_begin() + offsets->value(CodeOffsets::Entry); |
| 875 _verified_entry_point = code_begin() + offsets->value(CodeOffsets::Verified_Entry); | |
| 876 _osr_entry_point = code_begin() + offsets->value(CodeOffsets::OSR_Entry); | |
| 0 | 877 _exception_cache = NULL; |
| 878 _pc_desc_cache.reset_to(scopes_pcs_begin()); | |
| 879 | |
| 880 // Copy contents of ScopeDescRecorder to nmethod | |
| 881 code_buffer->copy_oops_to(this); | |
| 882 debug_info->copy_to(this); | |
| 883 dependencies->copy_to(this); | |
|
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884 if (ScavengeRootsInCode && detect_scavenge_root_oops()) { |
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885 CodeCache::add_scavenge_root_nmethod(this); |
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886 } |
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887 debug_only(verify_scavenge_root_oops()); |
| 0 | 888 |
| 889 CodeCache::commit(this); | |
| 890 | |
| 891 // Copy contents of ExceptionHandlerTable to nmethod | |
| 892 handler_table->copy_to(this); | |
| 893 nul_chk_table->copy_to(this); | |
| 894 | |
| 895 // we use the information of entry points to find out if a method is | |
| 896 // static or non static | |
| 897 assert(compiler->is_c2() || | |
| 898 _method->is_static() == (entry_point() == _verified_entry_point), | |
| 899 " entry points must be same for static methods and vice versa"); | |
| 900 } | |
| 901 | |
|
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902 bool printnmethods = PrintNMethods |
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903 || CompilerOracle::should_print(_method) |
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904 || CompilerOracle::has_option_string(_method, "PrintNMethods"); |
| 0 | 905 if (printnmethods || PrintDebugInfo || PrintRelocations || PrintDependencies || PrintExceptionHandlers) { |
| 906 print_nmethod(printnmethods); | |
| 907 } | |
| 908 | |
| 909 // Note: Do not verify in here as the CodeCache_lock is | |
| 910 // taken which would conflict with the CompiledIC_lock | |
| 911 // which taken during the verification of call sites. | |
| 912 // (was bug - gri 10/25/99) | |
| 913 | |
| 914 Events::log("Create nmethod " INTPTR_FORMAT, this); | |
| 915 } | |
| 916 | |
| 917 | |
| 918 // Print a short set of xml attributes to identify this nmethod. The | |
| 919 // output should be embedded in some other element. | |
| 920 void nmethod::log_identity(xmlStream* log) const { | |
| 921 log->print(" compile_id='%d'", compile_id()); | |
| 922 const char* nm_kind = compile_kind(); | |
| 923 if (nm_kind != NULL) log->print(" compile_kind='%s'", nm_kind); | |
| 924 if (compiler() != NULL) { | |
| 925 log->print(" compiler='%s'", compiler()->name()); | |
| 926 } | |
| 1783 | 927 if (TieredCompilation) { |
| 928 log->print(" level='%d'", comp_level()); | |
| 929 } | |
| 0 | 930 } |
| 931 | |
| 932 | |
| 933 #define LOG_OFFSET(log, name) \ | |
| 934 if ((intptr_t)name##_end() - (intptr_t)name##_begin()) \ | |
| 935 log->print(" " XSTR(name) "_offset='%d'" , \ | |
| 936 (intptr_t)name##_begin() - (intptr_t)this) | |
| 937 | |
| 938 | |
| 939 void nmethod::log_new_nmethod() const { | |
| 940 if (LogCompilation && xtty != NULL) { | |
| 941 ttyLocker ttyl; | |
| 942 HandleMark hm; | |
| 943 xtty->begin_elem("nmethod"); | |
| 944 log_identity(xtty); | |
| 1748 | 945 xtty->print(" entry='" INTPTR_FORMAT "' size='%d'", code_begin(), size()); |
| 0 | 946 xtty->print(" address='" INTPTR_FORMAT "'", (intptr_t) this); |
| 947 | |
| 948 LOG_OFFSET(xtty, relocation); | |
|
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949 LOG_OFFSET(xtty, consts); |
| 1748 | 950 LOG_OFFSET(xtty, insts); |
| 0 | 951 LOG_OFFSET(xtty, stub); |
| 952 LOG_OFFSET(xtty, scopes_data); | |
| 953 LOG_OFFSET(xtty, scopes_pcs); | |
| 954 LOG_OFFSET(xtty, dependencies); | |
| 955 LOG_OFFSET(xtty, handler_table); | |
| 956 LOG_OFFSET(xtty, nul_chk_table); | |
| 957 LOG_OFFSET(xtty, oops); | |
| 958 | |
| 959 xtty->method(method()); | |
| 960 xtty->stamp(); | |
| 961 xtty->end_elem(); | |
| 962 } | |
| 963 } | |
| 964 | |
| 965 #undef LOG_OFFSET | |
| 966 | |
| 967 | |
| 968 // Print out more verbose output usually for a newly created nmethod. | |
|
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969 void nmethod::print_on(outputStream* st, const char* msg) const { |
| 0 | 970 if (st != NULL) { |
| 971 ttyLocker ttyl; | |
|
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972 CompileTask::print_compilation(st, this, msg); |
| 0 | 973 if (WizardMode) st->print(" (" INTPTR_FORMAT ")", this); |
| 974 } | |
| 975 } | |
| 976 | |
| 977 | |
| 978 void nmethod::print_nmethod(bool printmethod) { | |
| 979 ttyLocker ttyl; // keep the following output all in one block | |
| 980 if (xtty != NULL) { | |
| 981 xtty->begin_head("print_nmethod"); | |
| 982 xtty->stamp(); | |
| 983 xtty->end_head(); | |
| 984 } | |
| 985 // print the header part first | |
| 986 print(); | |
| 987 // then print the requested information | |
| 988 if (printmethod) { | |
| 989 print_code(); | |
| 990 print_pcs(); | |
| 991 oop_maps()->print(); | |
| 992 } | |
| 993 if (PrintDebugInfo) { | |
| 994 print_scopes(); | |
| 995 } | |
| 996 if (PrintRelocations) { | |
| 997 print_relocations(); | |
| 998 } | |
| 999 if (PrintDependencies) { | |
| 1000 print_dependencies(); | |
| 1001 } | |
| 1002 if (PrintExceptionHandlers) { | |
| 1003 print_handler_table(); | |
| 1004 print_nul_chk_table(); | |
| 1005 } | |
| 1006 if (xtty != NULL) { | |
| 1007 xtty->tail("print_nmethod"); | |
| 1008 } | |
| 1009 } | |
| 1010 | |
| 1011 | |
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1012 // Promote one word from an assembly-time handle to a live embedded oop. |
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1013 inline void nmethod::initialize_immediate_oop(oop* dest, jobject handle) { |
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1014 if (handle == NULL || |
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1015 // As a special case, IC oops are initialized to 1 or -1. |
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1016 handle == (jobject) Universe::non_oop_word()) { |
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1017 (*dest) = (oop) handle; |
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1018 } else { |
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1019 (*dest) = JNIHandles::resolve_non_null(handle); |
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1020 } |
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1021 } |
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1022 |
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1023 |
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1024 void nmethod::copy_oops(GrowableArray<jobject>* array) { |
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1025 //assert(oops_size() == 0, "do this handshake just once, please"); |
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1026 int length = array->length(); |
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1027 assert((address)(oops_begin() + length) <= data_end(), "oops big enough"); |
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1028 oop* dest = oops_begin(); |
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1029 for (int index = 0 ; index < length; index++) { |
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1030 initialize_immediate_oop(&dest[index], array->at(index)); |
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1031 } |
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1032 |
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1033 // Now we can fix up all the oops in the code. We need to do this |
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1034 // in the code because the assembler uses jobjects as placeholders. |
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1035 // The code and relocations have already been initialized by the |
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1036 // CodeBlob constructor, so it is valid even at this early point to |
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1037 // iterate over relocations and patch the code. |
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1038 fix_oop_relocations(NULL, NULL, /*initialize_immediates=*/ true); |
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1039 } |
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1040 |
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1041 |
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1042 bool nmethod::is_at_poll_return(address pc) { |
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1043 RelocIterator iter(this, pc, pc+1); |
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1044 while (iter.next()) { |
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1045 if (iter.type() == relocInfo::poll_return_type) |
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1046 return true; |
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1047 } |
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1048 return false; |
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1049 } |
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1050 |
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1051 |
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1052 bool nmethod::is_at_poll_or_poll_return(address pc) { |
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1053 RelocIterator iter(this, pc, pc+1); |
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1054 while (iter.next()) { |
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1055 relocInfo::relocType t = iter.type(); |
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1056 if (t == relocInfo::poll_return_type || t == relocInfo::poll_type) |
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1057 return true; |
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1058 } |
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1059 return false; |
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1060 } |
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1061 |
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1062 |
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1063 void nmethod::fix_oop_relocations(address begin, address end, bool initialize_immediates) { |
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1064 // re-patch all oop-bearing instructions, just in case some oops moved |
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1065 RelocIterator iter(this, begin, end); |
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1066 while (iter.next()) { |
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1067 if (iter.type() == relocInfo::oop_type) { |
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1068 oop_Relocation* reloc = iter.oop_reloc(); |
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1069 if (initialize_immediates && reloc->oop_is_immediate()) { |
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1070 oop* dest = reloc->oop_addr(); |
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1071 initialize_immediate_oop(dest, (jobject) *dest); |
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1072 } |
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1073 // Refresh the oop-related bits of this instruction. |
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1074 reloc->fix_oop_relocation(); |
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1075 } |
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1076 |
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1077 // There must not be any interfering patches or breakpoints. |
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1078 assert(!(iter.type() == relocInfo::breakpoint_type |
|
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6951083: oops and relocations should part of nmethod not CodeBlob
twisti
parents:
1538
diff
changeset
|
1079 && iter.breakpoint_reloc()->active()), |
|
1a5913bf5e19
6951083: oops and relocations should part of nmethod not CodeBlob
twisti
parents:
1538
diff
changeset
|
1080 "no active breakpoint"); |
|
1a5913bf5e19
6951083: oops and relocations should part of nmethod not CodeBlob
twisti
parents:
1538
diff
changeset
|
1081 } |
|
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 |
|
1a5913bf5e19
6951083: oops and relocations should part of nmethod not CodeBlob
twisti
parents:
1538
diff
changeset
|
1084 |
|
2375
d673ef06fe96
7028374: race in fix_oop_relocations for scavengeable nmethods
never
parents:
2360
diff
changeset
|
1085 void nmethod::verify_oop_relocations() { |
|
d673ef06fe96
7028374: race in fix_oop_relocations for scavengeable nmethods
never
parents:
2360
diff
changeset
|
1086 // Ensure sure that the code matches the current oop values |
|
d673ef06fe96
7028374: race in fix_oop_relocations for scavengeable nmethods
never
parents:
2360
diff
changeset
|
1087 RelocIterator iter(this, NULL, NULL); |
|
d673ef06fe96
7028374: race in fix_oop_relocations for scavengeable nmethods
never
parents:
2360
diff
changeset
|
1088 while (iter.next()) { |
|
d673ef06fe96
7028374: race in fix_oop_relocations for scavengeable nmethods
never
parents:
2360
diff
changeset
|
1089 if (iter.type() == relocInfo::oop_type) { |
|
d673ef06fe96
7028374: race in fix_oop_relocations for scavengeable nmethods
never
parents:
2360
diff
changeset
|
1090 oop_Relocation* reloc = iter.oop_reloc(); |
|
d673ef06fe96
7028374: race in fix_oop_relocations for scavengeable nmethods
never
parents:
2360
diff
changeset
|
1091 if (!reloc->oop_is_immediate()) { |
|
d673ef06fe96
7028374: race in fix_oop_relocations for scavengeable nmethods
never
parents:
2360
diff
changeset
|
1092 reloc->verify_oop_relocation(); |
|
d673ef06fe96
7028374: race in fix_oop_relocations for scavengeable nmethods
never
parents:
2360
diff
changeset
|
1093 } |
|
d673ef06fe96
7028374: race in fix_oop_relocations for scavengeable nmethods
never
parents:
2360
diff
changeset
|
1094 } |
|
d673ef06fe96
7028374: race in fix_oop_relocations for scavengeable nmethods
never
parents:
2360
diff
changeset
|
1095 } |
|
d673ef06fe96
7028374: race in fix_oop_relocations for scavengeable nmethods
never
parents:
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diff
changeset
|
1096 } |
|
d673ef06fe96
7028374: race in fix_oop_relocations for scavengeable nmethods
never
parents:
2360
diff
changeset
|
1097 |
|
d673ef06fe96
7028374: race in fix_oop_relocations for scavengeable nmethods
never
parents:
2360
diff
changeset
|
1098 |
| 0 | 1099 ScopeDesc* nmethod::scope_desc_at(address pc) { |
| 1100 PcDesc* pd = pc_desc_at(pc); | |
| 1101 guarantee(pd != NULL, "scope must be present"); | |
| 1102 return new ScopeDesc(this, pd->scope_decode_offset(), | |
|
3018
5857923e563c
Fixed an issue with frame states in exception dispatch chains (now we are correctly rethrowing the exception immediately at entering the interpreter).
Thomas Wuerthinger <thomas@wuerthinger.net>
parents:
2891
diff
changeset
|
1103 pd->obj_decode_offset(), pd->should_reexecute(), pd->rethrow_exception(), |
|
1253
f70b0d9ab095
6910618: C2: Error: assert(d->is_oop(),"JVM_ArrayCopy: dst not an oop")
kvn
parents:
1250
diff
changeset
|
1104 pd->return_oop()); |
| 0 | 1105 } |
| 1106 | |
| 1107 | |
| 1108 void nmethod::clear_inline_caches() { | |
| 1109 assert(SafepointSynchronize::is_at_safepoint(), "cleaning of IC's only allowed at safepoint"); | |
| 1110 if (is_zombie()) { | |
| 1111 return; | |
| 1112 } | |
| 1113 | |
| 1114 RelocIterator iter(this); | |
| 1115 while (iter.next()) { | |
| 1116 iter.reloc()->clear_inline_cache(); | |
| 1117 } | |
| 1118 } | |
| 1119 | |
| 1120 | |
| 1121 void nmethod::cleanup_inline_caches() { | |
| 1122 | |
|
1538
bfe29ec02863
6950075: nmethod sweeper should operate concurrently
never
parents:
1490
diff
changeset
|
1123 assert_locked_or_safepoint(CompiledIC_lock); |
| 0 | 1124 |
| 1125 // If the method is not entrant or zombie then a JMP is plastered over the | |
| 1126 // first few bytes. If an oop in the old code was there, that oop | |
| 1127 // should not get GC'd. Skip the first few bytes of oops on | |
| 1128 // not-entrant methods. | |
| 1129 address low_boundary = verified_entry_point(); | |
| 1130 if (!is_in_use()) { | |
| 1131 low_boundary += NativeJump::instruction_size; | |
| 1132 // %%% Note: On SPARC we patch only a 4-byte trap, not a full NativeJump. | |
| 1133 // This means that the low_boundary is going to be a little too high. | |
| 1134 // This shouldn't matter, since oops of non-entrant methods are never used. | |
| 1135 // In fact, why are we bothering to look at oops in a non-entrant method?? | |
| 1136 } | |
| 1137 | |
| 1138 // Find all calls in an nmethod, and clear the ones that points to zombie methods | |
| 1139 ResourceMark rm; | |
| 1140 RelocIterator iter(this, low_boundary); | |
| 1141 while(iter.next()) { | |
| 1142 switch(iter.type()) { | |
| 1143 case relocInfo::virtual_call_type: | |
| 1144 case relocInfo::opt_virtual_call_type: { | |
| 1145 CompiledIC *ic = CompiledIC_at(iter.reloc()); | |
| 1146 // Ok, to lookup references to zombies here | |
| 1147 CodeBlob *cb = CodeCache::find_blob_unsafe(ic->ic_destination()); | |
| 1148 if( cb != NULL && cb->is_nmethod() ) { | |
| 1149 nmethod* nm = (nmethod*)cb; | |
| 1150 // Clean inline caches pointing to both zombie and not_entrant methods | |
| 1202 | 1151 if (!nm->is_in_use() || (nm->method()->code() != nm)) ic->set_to_clean(); |
| 0 | 1152 } |
| 1153 break; | |
| 1154 } | |
| 1155 case relocInfo::static_call_type: { | |
| 1156 CompiledStaticCall *csc = compiledStaticCall_at(iter.reloc()); | |
| 1157 CodeBlob *cb = CodeCache::find_blob_unsafe(csc->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)) csc->set_to_clean(); |
| 0 | 1162 } |
| 1163 break; | |
| 1164 } | |
| 1165 } | |
| 1166 } | |
| 1167 } | |
| 1168 | |
|
989
148e5441d916
6863023: need non-perm oops in code cache for JSR 292
jrose
parents:
931
diff
changeset
|
1169 // This is a private interface with the sweeper. |
| 0 | 1170 void nmethod::mark_as_seen_on_stack() { |
| 1171 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
|
1172 // 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
|
1173 // cleaning passes before moving to zombie. |
| 0 | 1174 set_stack_traversal_mark(NMethodSweeper::traversal_count()); |
| 1175 } | |
| 1176 | |
|
2342
46a56fac55c7
7024970: 2/3 assert(ServiceThread::is_service_thread(Thread::current())) failed: Service thread must post enqueue
dcubed
parents:
2321
diff
changeset
|
1177 // Tell if a non-entrant method can be converted to a zombie (i.e., |
|
46a56fac55c7
7024970: 2/3 assert(ServiceThread::is_service_thread(Thread::current())) failed: Service thread must post enqueue
dcubed
parents:
2321
diff
changeset
|
1178 // there are no activations on the stack, not in use by the VM, |
|
46a56fac55c7
7024970: 2/3 assert(ServiceThread::is_service_thread(Thread::current())) failed: Service thread must post enqueue
dcubed
parents:
2321
diff
changeset
|
1179 // and not in use by the ServiceThread) |
| 0 | 1180 bool nmethod::can_not_entrant_be_converted() { |
| 1181 assert(is_not_entrant(), "must be a non-entrant method"); | |
| 1182 | |
| 1183 // Since the nmethod sweeper only does partial sweep the sweeper's traversal | |
| 1184 // count can be greater than the stack traversal count before it hits the | |
| 1185 // nmethod for the second time. | |
|
2342
46a56fac55c7
7024970: 2/3 assert(ServiceThread::is_service_thread(Thread::current())) failed: Service thread must post enqueue
dcubed
parents:
2321
diff
changeset
|
1186 return stack_traversal_mark()+1 < NMethodSweeper::traversal_count() && |
|
46a56fac55c7
7024970: 2/3 assert(ServiceThread::is_service_thread(Thread::current())) failed: Service thread must post enqueue
dcubed
parents:
2321
diff
changeset
|
1187 !is_locked_by_vm(); |
| 0 | 1188 } |
| 1189 | |
| 1190 void nmethod::inc_decompile_count() { | |
| 1783 | 1191 if (!is_compiled_by_c2()) return; |
| 0 | 1192 // Could be gated by ProfileTraps, but do not bother... |
| 1193 methodOop m = method(); | |
| 1194 if (m == NULL) return; | |
| 1195 methodDataOop mdo = m->method_data(); | |
| 1196 if (mdo == NULL) return; | |
| 1197 // There is a benign race here. See comments in methodDataOop.hpp. | |
| 1198 mdo->inc_decompile_count(); | |
| 1199 } | |
| 1200 | |
| 1201 void nmethod::make_unloaded(BoolObjectClosure* is_alive, oop cause) { | |
| 1202 | |
| 1203 post_compiled_method_unload(); | |
| 1204 | |
| 1205 // Since this nmethod is being unloaded, make sure that dependencies | |
| 1206 // recorded in instanceKlasses get flushed and pass non-NULL closure to | |
| 1207 // indicate that this work is being done during a GC. | |
| 1208 assert(Universe::heap()->is_gc_active(), "should only be called during gc"); | |
| 1209 assert(is_alive != NULL, "Should be non-NULL"); | |
| 1210 // A non-NULL is_alive closure indicates that this is being called during GC. | |
| 1211 flush_dependencies(is_alive); | |
| 1212 | |
| 1213 // Break cycle between nmethod & method | |
| 1214 if (TraceClassUnloading && WizardMode) { | |
| 1215 tty->print_cr("[Class unloading: Making nmethod " INTPTR_FORMAT | |
| 1216 " unloadable], methodOop(" INTPTR_FORMAT | |
| 1217 "), cause(" INTPTR_FORMAT ")", | |
| 1218 this, (address)_method, (address)cause); | |
|
989
148e5441d916
6863023: need non-perm oops in code cache for JSR 292
jrose
parents:
931
diff
changeset
|
1219 if (!Universe::heap()->is_gc_active()) |
|
148e5441d916
6863023: need non-perm oops in code cache for JSR 292
jrose
parents:
931
diff
changeset
|
1220 cause->klass()->print(); |
| 0 | 1221 } |
| 941 | 1222 // Unlink the osr method, so we do not look this up again |
| 1223 if (is_osr_method()) { | |
| 1224 invalidate_osr_method(); | |
| 1225 } | |
| 0 | 1226 // If _method is already NULL the methodOop is about to be unloaded, |
| 1227 // so we don't have to break the cycle. Note that it is possible to | |
| 1228 // have the methodOop live here, in case we unload the nmethod because | |
| 1229 // it is pointing to some oop (other than the methodOop) being unloaded. | |
| 1230 if (_method != NULL) { | |
| 1231 // OSR methods point to the methodOop, but the methodOop does not | |
| 1232 // point back! | |
| 1233 if (_method->code() == this) { | |
| 1234 _method->clear_code(); // Break a cycle | |
| 1235 } | |
| 1236 _method = NULL; // Clear the method of this dead nmethod | |
| 1237 } | |
|
4320
125678ef7587
Fix compiled method unloading.
Andreas Woess <andreas.woess@jku.at>
parents:
4137
diff
changeset
|
1238 |
|
125678ef7587
Fix compiled method unloading.
Andreas Woess <andreas.woess@jku.at>
parents:
4137
diff
changeset
|
1239 #ifdef GRAAL |
|
125678ef7587
Fix compiled method unloading.
Andreas Woess <andreas.woess@jku.at>
parents:
4137
diff
changeset
|
1240 if (_graal_compiled_method != NULL) { |
|
125678ef7587
Fix compiled method unloading.
Andreas Woess <andreas.woess@jku.at>
parents:
4137
diff
changeset
|
1241 HotSpotCompiledMethod::set_nmethod(_graal_compiled_method, 0); |
|
125678ef7587
Fix compiled method unloading.
Andreas Woess <andreas.woess@jku.at>
parents:
4137
diff
changeset
|
1242 _graal_compiled_method = NULL; |
|
125678ef7587
Fix compiled method unloading.
Andreas Woess <andreas.woess@jku.at>
parents:
4137
diff
changeset
|
1243 } |
|
125678ef7587
Fix compiled method unloading.
Andreas Woess <andreas.woess@jku.at>
parents:
4137
diff
changeset
|
1244 #endif |
|
125678ef7587
Fix compiled method unloading.
Andreas Woess <andreas.woess@jku.at>
parents:
4137
diff
changeset
|
1245 |
| 0 | 1246 // Make the class unloaded - i.e., change state and notify sweeper |
|
1538
bfe29ec02863
6950075: nmethod sweeper should operate concurrently
never
parents:
1490
diff
changeset
|
1247 assert(SafepointSynchronize::is_at_safepoint(), "must be at safepoint"); |
| 0 | 1248 if (is_in_use()) { |
| 1249 // Transitioning directly from live to unloaded -- so | |
| 1250 // we need to force a cache clean-up; remember this | |
| 1251 // for later on. | |
| 1252 CodeCache::set_needs_cache_clean(true); | |
| 1253 } | |
|
1644
2a47bd84841f
6965184: possible races in make_not_entrant_or_zombie
never
parents:
1616
diff
changeset
|
1254 _state = unloaded; |
| 0 | 1255 |
|
1109
032260830071
5057818: codecache full and compiler disabled in bigapps fastdebug run
never
parents:
994
diff
changeset
|
1256 // Log the unloading. |
|
032260830071
5057818: codecache full and compiler disabled in bigapps fastdebug run
never
parents:
994
diff
changeset
|
1257 log_state_change(); |
|
032260830071
5057818: codecache full and compiler disabled in bigapps fastdebug run
never
parents:
994
diff
changeset
|
1258 |
| 0 | 1259 // The methodOop is gone at this point |
| 1260 assert(_method == NULL, "Tautology"); | |
| 1261 | |
|
989
148e5441d916
6863023: need non-perm oops in code cache for JSR 292
jrose
parents:
931
diff
changeset
|
1262 set_osr_link(NULL); |
|
148e5441d916
6863023: need non-perm oops in code cache for JSR 292
jrose
parents:
931
diff
changeset
|
1263 //set_scavenge_root_link(NULL); // done by prune_scavenge_root_nmethods |
| 0 | 1264 NMethodSweeper::notify(this); |
| 1265 } | |
| 1266 | |
| 1267 void nmethod::invalidate_osr_method() { | |
| 1268 assert(_entry_bci != InvocationEntryBci, "wrong kind of nmethod"); | |
| 1269 // Remove from list of active nmethods | |
| 1270 if (method() != NULL) | |
| 1271 instanceKlass::cast(method()->method_holder())->remove_osr_nmethod(this); | |
| 1272 // Set entry as invalid | |
| 1273 _entry_bci = InvalidOSREntryBci; | |
| 1274 } | |
| 1275 | |
|
1109
032260830071
5057818: codecache full and compiler disabled in bigapps fastdebug run
never
parents:
994
diff
changeset
|
1276 void nmethod::log_state_change() const { |
| 0 | 1277 if (LogCompilation) { |
| 1278 if (xtty != NULL) { | |
| 1279 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
|
1280 if (_state == unloaded) { |
|
1109
032260830071
5057818: codecache full and compiler disabled in bigapps fastdebug run
never
parents:
994
diff
changeset
|
1281 xtty->begin_elem("make_unloaded thread='" UINTX_FORMAT "'", |
|
032260830071
5057818: codecache full and compiler disabled in bigapps fastdebug run
never
parents:
994
diff
changeset
|
1282 os::current_thread_id()); |
|
032260830071
5057818: codecache full and compiler disabled in bigapps fastdebug run
never
parents:
994
diff
changeset
|
1283 } else { |
|
032260830071
5057818: codecache full and compiler disabled in bigapps fastdebug run
never
parents:
994
diff
changeset
|
1284 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
|
1285 os::current_thread_id(), |
|
1644
2a47bd84841f
6965184: possible races in make_not_entrant_or_zombie
never
parents:
1616
diff
changeset
|
1286 (_state == zombie ? " zombie='1'" : "")); |
|
1109
032260830071
5057818: codecache full and compiler disabled in bigapps fastdebug run
never
parents:
994
diff
changeset
|
1287 } |
| 0 | 1288 log_identity(xtty); |
| 1289 xtty->stamp(); | |
| 1290 xtty->end_elem(); | |
| 1291 } | |
| 1292 } | |
|
1644
2a47bd84841f
6965184: possible races in make_not_entrant_or_zombie
never
parents:
1616
diff
changeset
|
1293 if (PrintCompilation && _state != unloaded) { |
|
2405
3d58a4983660
7022998: JSR 292 recursive method handle calls inline themselves infinitely
twisti
parents:
2376
diff
changeset
|
1294 print_on(tty, _state == zombie ? "made zombie" : "made not entrant"); |
| 0 | 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"); |
|
2342
46a56fac55c7
7024970: 2/3 assert(ServiceThread::is_service_thread(Thread::current())) failed: Service thread must post enqueue
dcubed
parents:
2321
diff
changeset
|
1301 assert(!is_zombie(), "should not already be a zombie"); |
| 0 | 1302 |
|
1644
2a47bd84841f
6965184: possible races in make_not_entrant_or_zombie
never
parents:
1616
diff
changeset
|
1303 // Make sure neither the nmethod nor the method is flushed in case of a safepoint in code below. |
| 0 | 1304 nmethodLocker nml(this); |
|
1644
2a47bd84841f
6965184: possible races in make_not_entrant_or_zombie
never
parents:
1616
diff
changeset
|
1305 methodHandle the_method(method()); |
| 1726 | 1306 No_Safepoint_Verifier nsv; |
| 0 | 1307 |
| 1308 { | |
|
1109
032260830071
5057818: codecache full and compiler disabled in bigapps fastdebug run
never
parents:
994
diff
changeset
|
1309 // 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
|
1310 // 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
|
1311 // 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
|
1312 // verified entry point of regular methods. |
|
032260830071
5057818: codecache full and compiler disabled in bigapps fastdebug run
never
parents:
994
diff
changeset
|
1313 if (is_osr_method()) { |
|
032260830071
5057818: codecache full and compiler disabled in bigapps fastdebug run
never
parents:
994
diff
changeset
|
1314 // this effectively makes the osr nmethod not entrant |
|
032260830071
5057818: codecache full and compiler disabled in bigapps fastdebug run
never
parents:
994
diff
changeset
|
1315 invalidate_osr_method(); |
|
032260830071
5057818: codecache full and compiler disabled in bigapps fastdebug run
never
parents:
994
diff
changeset
|
1316 } |
|
032260830071
5057818: codecache full and compiler disabled in bigapps fastdebug run
never
parents:
994
diff
changeset
|
1317 |
| 0 | 1318 // Enter critical section. Does not block for safepoint. |
| 1319 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
|
1320 |
|
1644
2a47bd84841f
6965184: possible races in make_not_entrant_or_zombie
never
parents:
1616
diff
changeset
|
1321 if (_state == state) { |
|
1109
032260830071
5057818: codecache full and compiler disabled in bigapps fastdebug run
never
parents:
994
diff
changeset
|
1322 // another thread already performed this transition so nothing |
|
032260830071
5057818: codecache full and compiler disabled in bigapps fastdebug run
never
parents:
994
diff
changeset
|
1323 // to do, but return false to indicate this. |
|
032260830071
5057818: codecache full and compiler disabled in bigapps fastdebug run
never
parents:
994
diff
changeset
|
1324 return false; |
|
032260830071
5057818: codecache full and compiler disabled in bigapps fastdebug run
never
parents:
994
diff
changeset
|
1325 } |
|
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1326 |
|
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1327 #ifdef GRAAL |
|
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1328 if (_graal_compiled_method != NULL) { |
|
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1329 HotSpotCompiledMethod::set_nmethod(_graal_compiled_method, 0); |
|
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1330 _graal_compiled_method = NULL; |
|
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1331 } |
|
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1332 #endif |
|
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1333 |
| 0 | 1334 // The caller can be calling the method statically or through an inline |
| 1335 // cache call. | |
|
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1336 if (!is_osr_method() && !is_not_entrant()) { |
| 0 | 1337 NativeJump::patch_verified_entry(entry_point(), verified_entry_point(), |
| 1338 SharedRuntime::get_handle_wrong_method_stub()); | |
| 1339 } | |
| 1340 | |
|
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1341 if (is_in_use()) { |
|
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1342 // It's a true state change, so mark the method as decompiled. |
|
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1343 // Do it only for transition from alive. |
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1344 inc_decompile_count(); |
|
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1345 } |
|
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1346 |
| 0 | 1347 // Change state |
|
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1348 _state = state; |
|
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1349 |
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1350 // Log the transition once |
|
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1351 log_state_change(); |
|
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1352 |
|
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1353 // Remove nmethod from method. |
|
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1354 // We need to check if both the _code and _from_compiled_code_entry_point |
|
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1355 // refer to this nmethod because there is a race in setting these two fields |
|
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1356 // in methodOop as seen in bugid 4947125. |
|
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1357 // If the vep() points to the zombie nmethod, the memory for the nmethod |
|
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1358 // could be flushed and the compiler and vtable stubs could still call |
|
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1359 // through it. |
|
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1360 if (method() != NULL && (method()->code() == this || |
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1361 method()->from_compiled_entry() == verified_entry_point())) { |
|
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1362 HandleMark hm; |
|
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1363 method()->clear_code(); |
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1364 } |
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1365 |
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1366 if (state == not_entrant) { |
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1367 mark_as_seen_on_stack(); |
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1368 } |
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1369 |
| 0 | 1370 } // leave critical region under Patching_lock |
| 1371 | |
|
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1372 // When the nmethod becomes zombie it is no longer alive so the |
|
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1373 // dependencies must be flushed. nmethods in the not_entrant |
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1374 // state will be flushed later when the transition to zombie |
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1375 // happens or they get unloaded. |
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1376 if (state == zombie) { |
| 1726 | 1377 { |
| 1378 // Flushing dependecies must be done before any possible | |
| 1379 // safepoint can sneak in, otherwise the oops used by the | |
| 1380 // dependency logic could have become stale. | |
| 1381 MutexLockerEx mu(CodeCache_lock, Mutex::_no_safepoint_check_flag); | |
| 1382 flush_dependencies(NULL); | |
| 1383 } | |
|
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1384 |
|
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1385 // zombie only - if a JVMTI agent has enabled the CompiledMethodUnload |
|
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1386 // event and it hasn't already been reported for this nmethod then |
|
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1387 // report it now. The event may have been reported earilier if the GC |
|
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1388 // marked it for unloading). JvmtiDeferredEventQueue support means |
|
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1389 // we no longer go to a safepoint here. |
|
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|
1390 post_compiled_method_unload(); |
| 1726 | 1391 |
| 1392 #ifdef ASSERT | |
| 1393 // It's no longer safe to access the oops section since zombie | |
| 1394 // nmethods aren't scanned for GC. | |
| 1395 _oops_are_stale = true; | |
| 1396 #endif | |
|
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1397 } else { |
|
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1398 assert(state == not_entrant, "other cases may need to be handled differently"); |
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1399 } |
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1400 |
| 0 | 1401 if (TraceCreateZombies) { |
| 1402 tty->print_cr("nmethod <" INTPTR_FORMAT "> code made %s", this, (state == not_entrant) ? "not entrant" : "zombie"); | |
| 1403 } | |
| 1404 | |
| 1405 // Make sweeper aware that there is a zombie method that needs to be removed | |
| 1406 NMethodSweeper::notify(this); | |
| 1407 | |
|
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1408 return true; |
| 0 | 1409 } |
| 1410 | |
| 1411 void nmethod::flush() { | |
| 1412 // Note that there are no valid oops in the nmethod anymore. | |
| 1413 assert(is_zombie() || (is_osr_method() && is_unloaded()), "must be a zombie method"); | |
| 1414 assert(is_marked_for_reclamation() || (is_osr_method() && is_unloaded()), "must be marked for reclamation"); | |
| 1415 | |
| 1416 assert (!is_locked_by_vm(), "locked methods shouldn't be flushed"); | |
|
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1417 assert_locked_or_safepoint(CodeCache_lock); |
| 0 | 1418 |
| 1419 // completely deallocate this method | |
| 1420 EventMark m("flushing nmethod " INTPTR_FORMAT " %s", this, ""); | |
| 1421 if (PrintMethodFlushing) { | |
| 1202 | 1422 tty->print_cr("*flushing nmethod %3d/" INTPTR_FORMAT ". Live blobs:" UINT32_FORMAT "/Free CodeCache:" SIZE_FORMAT "Kb", |
| 1423 _compile_id, this, CodeCache::nof_blobs(), CodeCache::unallocated_capacity()/1024); | |
| 0 | 1424 } |
| 1425 | |
| 1426 // We need to deallocate any ExceptionCache data. | |
| 1427 // Note that we do not need to grab the nmethod lock for this, it | |
| 1428 // better be thread safe if we're disposing of it! | |
| 1429 ExceptionCache* ec = exception_cache(); | |
| 1430 set_exception_cache(NULL); | |
| 1431 while(ec != NULL) { | |
| 1432 ExceptionCache* next = ec->next(); | |
| 1433 delete ec; | |
| 1434 ec = next; | |
| 1435 } | |
| 1436 | |
|
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1437 if (on_scavenge_root_list()) { |
|
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1438 CodeCache::drop_scavenge_root_nmethod(this); |
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1439 } |
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1440 |
| 1202 | 1441 if (is_speculatively_disconnected()) { |
| 1442 CodeCache::remove_saved_code(this); | |
| 1443 } | |
| 1444 | |
| 1692 | 1445 #ifdef SHARK |
|
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1446 ((SharkCompiler *) compiler())->free_compiled_method(insts_begin()); |
| 1692 | 1447 #endif // SHARK |
| 1448 | |
| 0 | 1449 ((CodeBlob*)(this))->flush(); |
| 1450 | |
| 1451 CodeCache::free(this); | |
| 1452 } | |
| 1453 | |
| 1454 | |
| 1455 // | |
| 1456 // Notify all classes this nmethod is dependent on that it is no | |
| 1457 // longer dependent. This should only be called in two situations. | |
| 1458 // First, when a nmethod transitions to a zombie all dependents need | |
| 1459 // to be clear. Since zombification happens at a safepoint there's no | |
| 1460 // synchronization issues. The second place is a little more tricky. | |
| 1461 // During phase 1 of mark sweep class unloading may happen and as a | |
| 1462 // result some nmethods may get unloaded. In this case the flushing | |
| 1463 // of dependencies must happen during phase 1 since after GC any | |
| 1464 // dependencies in the unloaded nmethod won't be updated, so | |
| 1465 // traversing the dependency information in unsafe. In that case this | |
| 1466 // function is called with a non-NULL argument and this function only | |
| 1467 // notifies instanceKlasses that are reachable | |
| 1468 | |
| 1469 void nmethod::flush_dependencies(BoolObjectClosure* is_alive) { | |
|
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1470 assert_locked_or_safepoint(CodeCache_lock); |
| 0 | 1471 assert(Universe::heap()->is_gc_active() == (is_alive != NULL), |
| 1472 "is_alive is non-NULL if and only if we are called during GC"); | |
| 1473 if (!has_flushed_dependencies()) { | |
| 1474 set_has_flushed_dependencies(); | |
| 1475 for (Dependencies::DepStream deps(this); deps.next(); ) { | |
| 1476 klassOop klass = deps.context_type(); | |
| 1477 if (klass == NULL) continue; // ignore things like evol_method | |
| 1478 | |
| 1479 // During GC the is_alive closure is non-NULL, and is used to | |
| 1480 // determine liveness of dependees that need to be updated. | |
| 1481 if (is_alive == NULL || is_alive->do_object_b(klass)) { | |
| 1482 instanceKlass::cast(klass)->remove_dependent_nmethod(this); | |
| 1483 } | |
| 1484 } | |
| 1485 } | |
| 1486 } | |
| 1487 | |
| 1488 | |
| 1489 // If this oop is not live, the nmethod can be unloaded. | |
| 1490 bool nmethod::can_unload(BoolObjectClosure* is_alive, | |
| 1491 OopClosure* keep_alive, | |
| 1492 oop* root, bool unloading_occurred) { | |
| 1493 assert(root != NULL, "just checking"); | |
| 1494 oop obj = *root; | |
| 1495 if (obj == NULL || is_alive->do_object_b(obj)) { | |
| 1496 return false; | |
| 1497 } | |
| 1498 if (obj->is_compiledICHolder()) { | |
| 1499 compiledICHolderOop cichk_oop = compiledICHolderOop(obj); | |
| 1500 if (is_alive->do_object_b( | |
| 1501 cichk_oop->holder_method()->method_holder()) && | |
| 1502 is_alive->do_object_b(cichk_oop->holder_klass())) { | |
| 1503 // The oop should be kept alive | |
| 1504 keep_alive->do_oop(root); | |
| 1505 return false; | |
| 1506 } | |
| 1507 } | |
|
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1508 // If ScavengeRootsInCode is true, an nmethod might be unloaded |
|
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1509 // simply because one of its constant oops has gone dead. |
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1510 // No actual classes need to be unloaded in order for this to occur. |
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1511 assert(unloading_occurred || ScavengeRootsInCode, "Inconsistency in unloading"); |
| 0 | 1512 make_unloaded(is_alive, obj); |
| 1513 return true; | |
| 1514 } | |
| 1515 | |
| 1516 // ------------------------------------------------------------------ | |
| 1517 // post_compiled_method_load_event | |
| 1518 // new method for install_code() path | |
| 1519 // Transfer information from compilation to jvmti | |
| 1520 void nmethod::post_compiled_method_load_event() { | |
| 1521 | |
| 1522 methodOop moop = method(); | |
| 4006 | 1523 #ifndef USDT2 |
| 0 | 1524 HS_DTRACE_PROBE8(hotspot, compiled__method__load, |
| 1525 moop->klass_name()->bytes(), | |
| 1526 moop->klass_name()->utf8_length(), | |
| 1527 moop->name()->bytes(), | |
| 1528 moop->name()->utf8_length(), | |
| 1529 moop->signature()->bytes(), | |
| 1530 moop->signature()->utf8_length(), | |
| 1748 | 1531 insts_begin(), insts_size()); |
| 4006 | 1532 #else /* USDT2 */ |
| 1533 HOTSPOT_COMPILED_METHOD_LOAD( | |
| 1534 (char *) moop->klass_name()->bytes(), | |
| 1535 moop->klass_name()->utf8_length(), | |
| 1536 (char *) moop->name()->bytes(), | |
| 1537 moop->name()->utf8_length(), | |
| 1538 (char *) moop->signature()->bytes(), | |
| 1539 moop->signature()->utf8_length(), | |
| 1540 insts_begin(), insts_size()); | |
| 1541 #endif /* USDT2 */ | |
| 0 | 1542 |
|
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1543 if (JvmtiExport::should_post_compiled_method_load() || |
|
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1544 JvmtiExport::should_post_compiled_method_unload()) { |
|
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1545 get_and_cache_jmethod_id(); |
|
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1546 } |
|
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1547 |
| 0 | 1548 if (JvmtiExport::should_post_compiled_method_load()) { |
|
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1549 // Let the Service thread (which is a real Java thread) post the event |
|
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1550 MutexLockerEx ml(Service_lock, Mutex::_no_safepoint_check_flag); |
|
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1551 JvmtiDeferredEventQueue::enqueue( |
|
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1552 JvmtiDeferredEvent::compiled_method_load_event(this)); |
| 0 | 1553 } |
| 1554 } | |
| 1555 | |
|
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|
1556 jmethodID nmethod::get_and_cache_jmethod_id() { |
|
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|
1557 if (_jmethod_id == NULL) { |
|
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|
1558 // Cache the jmethod_id since it can no longer be looked up once the |
|
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1559 // method itself has been marked for unloading. |
|
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6656830: assert((*p)->is_oop(),"expected an oop while scanning weak refs")
never
parents:
1602
diff
changeset
|
1560 _jmethod_id = method()->jmethod_id(); |
|
38e8278318ca
6656830: assert((*p)->is_oop(),"expected an oop while scanning weak refs")
never
parents:
1602
diff
changeset
|
1561 } |
|
38e8278318ca
6656830: assert((*p)->is_oop(),"expected an oop while scanning weak refs")
never
parents:
1602
diff
changeset
|
1562 return _jmethod_id; |
|
38e8278318ca
6656830: assert((*p)->is_oop(),"expected an oop while scanning weak refs")
never
parents:
1602
diff
changeset
|
1563 } |
|
38e8278318ca
6656830: assert((*p)->is_oop(),"expected an oop while scanning weak refs")
never
parents:
1602
diff
changeset
|
1564 |
| 0 | 1565 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
|
1566 if (unload_reported()) { |
|
852d0157c696
6956931: assert(SafepointSynchronize::is_at_safepoint()) failed: must be executed at a safepoint
never
parents:
1563
diff
changeset
|
1567 // 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
|
1568 // 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
|
1569 return; |
|
852d0157c696
6956931: assert(SafepointSynchronize::is_at_safepoint()) failed: must be executed at a safepoint
never
parents:
1563
diff
changeset
|
1570 } |
|
852d0157c696
6956931: assert(SafepointSynchronize::is_at_safepoint()) failed: must be executed at a safepoint
never
parents:
1563
diff
changeset
|
1571 |
| 0 | 1572 assert(_method != NULL && !is_unloaded(), "just checking"); |
| 1573 DTRACE_METHOD_UNLOAD_PROBE(method()); | |
| 1574 | |
| 1575 // 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
|
1576 // 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
|
1577 // 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
|
1578 // 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
|
1579 // 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
|
1580 // 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
|
1581 // 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
|
1582 // ref will have been cleared. |
|
38e8278318ca
6656830: assert((*p)->is_oop(),"expected an oop while scanning weak refs")
never
parents:
1602
diff
changeset
|
1583 if (_jmethod_id != NULL && JvmtiExport::should_post_compiled_method_unload()) { |
| 0 | 1584 assert(!unload_reported(), "already unloaded"); |
|
2195
bf8517f4e4d0
6766644: Redefinition of compiled method fails with assertion "Can not load classes with the Compiler thread"
kamg
parents:
2177
diff
changeset
|
1585 JvmtiDeferredEvent event = |
|
2342
46a56fac55c7
7024970: 2/3 assert(ServiceThread::is_service_thread(Thread::current())) failed: Service thread must post enqueue
dcubed
parents:
2321
diff
changeset
|
1586 JvmtiDeferredEvent::compiled_method_unload_event(this, |
|
2195
bf8517f4e4d0
6766644: Redefinition of compiled method fails with assertion "Can not load classes with the Compiler thread"
kamg
parents:
2177
diff
changeset
|
1587 _jmethod_id, insts_begin()); |
|
bf8517f4e4d0
6766644: Redefinition of compiled method fails with assertion "Can not load classes with the Compiler thread"
kamg
parents:
2177
diff
changeset
|
1588 if (SafepointSynchronize::is_at_safepoint()) { |
|
bf8517f4e4d0
6766644: Redefinition of compiled method fails with assertion "Can not load classes with the Compiler thread"
kamg
parents:
2177
diff
changeset
|
1589 // Don't want to take the queueing lock. Add it as pending and |
|
bf8517f4e4d0
6766644: Redefinition of compiled method fails with assertion "Can not load classes with the Compiler thread"
kamg
parents:
2177
diff
changeset
|
1590 // it will get enqueued later. |
|
bf8517f4e4d0
6766644: Redefinition of compiled method fails with assertion "Can not load classes with the Compiler thread"
kamg
parents:
2177
diff
changeset
|
1591 JvmtiDeferredEventQueue::add_pending_event(event); |
|
bf8517f4e4d0
6766644: Redefinition of compiled method fails with assertion "Can not load classes with the Compiler thread"
kamg
parents:
2177
diff
changeset
|
1592 } else { |
|
bf8517f4e4d0
6766644: Redefinition of compiled method fails with assertion "Can not load classes with the Compiler thread"
kamg
parents:
2177
diff
changeset
|
1593 MutexLockerEx ml(Service_lock, Mutex::_no_safepoint_check_flag); |
|
bf8517f4e4d0
6766644: Redefinition of compiled method fails with assertion "Can not load classes with the Compiler thread"
kamg
parents:
2177
diff
changeset
|
1594 JvmtiDeferredEventQueue::enqueue(event); |
|
bf8517f4e4d0
6766644: Redefinition of compiled method fails with assertion "Can not load classes with the Compiler thread"
kamg
parents:
2177
diff
changeset
|
1595 } |
| 0 | 1596 } |
| 1597 | |
| 1598 // The JVMTI CompiledMethodUnload event can be enabled or disabled at | |
| 1599 // any time. As the nmethod is being unloaded now we mark it has | |
| 1600 // having the unload event reported - this will ensure that we don't | |
| 1601 // attempt to report the event in the unlikely scenario where the | |
| 1602 // event is enabled at the time the nmethod is made a zombie. | |
| 1603 set_unload_reported(); | |
| 1604 } | |
| 1605 | |
| 1606 // This is called at the end of the strong tracing/marking phase of a | |
| 1607 // GC to unload an nmethod if it contains otherwise unreachable | |
| 1608 // oops. | |
| 1609 | |
| 1610 void nmethod::do_unloading(BoolObjectClosure* is_alive, | |
| 1611 OopClosure* keep_alive, bool unloading_occurred) { | |
| 1612 // Make sure the oop's ready to receive visitors | |
| 1613 assert(!is_zombie() && !is_unloaded(), | |
| 1614 "should not call follow on zombie or unloaded nmethod"); | |
| 1615 | |
| 1616 // If the method is not entrant then a JMP is plastered over the | |
| 1617 // first few bytes. If an oop in the old code was there, that oop | |
| 1618 // should not get GC'd. Skip the first few bytes of oops on | |
| 1619 // not-entrant methods. | |
| 1620 address low_boundary = verified_entry_point(); | |
| 1621 if (is_not_entrant()) { | |
| 1622 low_boundary += NativeJump::instruction_size; | |
| 1623 // %%% Note: On SPARC we patch only a 4-byte trap, not a full NativeJump. | |
| 1624 // (See comment above.) | |
| 1625 } | |
| 1626 | |
| 1627 // The RedefineClasses() API can cause the class unloading invariant | |
| 1628 // to no longer be true. See jvmtiExport.hpp for details. | |
| 1629 // Also, leave a debugging breadcrumb in local flag. | |
| 1630 bool a_class_was_redefined = JvmtiExport::has_redefined_a_class(); | |
| 1631 if (a_class_was_redefined) { | |
| 1632 // This set of the unloading_occurred flag is done before the | |
| 1633 // call to post_compiled_method_unload() so that the unloading | |
| 1634 // of this nmethod is reported. | |
| 1635 unloading_occurred = true; | |
| 1636 } | |
| 1637 | |
| 1638 // Follow methodOop | |
| 1639 if (can_unload(is_alive, keep_alive, (oop*)&_method, unloading_occurred)) { | |
| 1640 return; | |
| 1641 } | |
| 1642 | |
|
3683
345c3bbf9c3c
store RiCompiledMethod in nmethod and:
Lukas Stadler <lukas.stadler@jku.at>
parents:
3464
diff
changeset
|
1643 if (_graal_compiled_method != NULL && can_unload(is_alive, keep_alive, (oop*)&_graal_compiled_method, unloading_occurred)) { |
|
345c3bbf9c3c
store RiCompiledMethod in nmethod and:
Lukas Stadler <lukas.stadler@jku.at>
parents:
3464
diff
changeset
|
1644 return; |
|
345c3bbf9c3c
store RiCompiledMethod in nmethod and:
Lukas Stadler <lukas.stadler@jku.at>
parents:
3464
diff
changeset
|
1645 } |
|
345c3bbf9c3c
store RiCompiledMethod in nmethod and:
Lukas Stadler <lukas.stadler@jku.at>
parents:
3464
diff
changeset
|
1646 |
| 0 | 1647 // Exception cache |
| 1648 ExceptionCache* ec = exception_cache(); | |
| 1649 while (ec != NULL) { | |
| 1650 oop* ex_addr = (oop*)ec->exception_type_addr(); | |
| 1651 oop ex = *ex_addr; | |
| 1652 ExceptionCache* next_ec = ec->next(); | |
| 1653 if (ex != NULL && !is_alive->do_object_b(ex)) { | |
| 1654 assert(!ex->is_compiledICHolder(), "Possible error here"); | |
| 1655 remove_from_exception_cache(ec); | |
| 1656 } | |
| 1657 ec = next_ec; | |
| 1658 } | |
| 1659 | |
| 1660 // If class unloading occurred we first iterate over all inline caches and | |
| 1661 // clear ICs where the cached oop is referring to an unloaded klass or method. | |
| 1662 // The remaining live cached oops will be traversed in the relocInfo::oop_type | |
| 1663 // iteration below. | |
| 1664 if (unloading_occurred) { | |
| 1665 RelocIterator iter(this, low_boundary); | |
| 1666 while(iter.next()) { | |
| 1667 if (iter.type() == relocInfo::virtual_call_type) { | |
| 1668 CompiledIC *ic = CompiledIC_at(iter.reloc()); | |
| 1669 oop ic_oop = ic->cached_oop(); | |
| 1670 if (ic_oop != NULL && !is_alive->do_object_b(ic_oop)) { | |
| 1671 // The only exception is compiledICHolder oops which may | |
| 1672 // yet be marked below. (We check this further below). | |
| 1673 if (ic_oop->is_compiledICHolder()) { | |
| 1674 compiledICHolderOop cichk_oop = compiledICHolderOop(ic_oop); | |
| 1675 if (is_alive->do_object_b( | |
| 1676 cichk_oop->holder_method()->method_holder()) && | |
| 1677 is_alive->do_object_b(cichk_oop->holder_klass())) { | |
| 1678 continue; | |
| 1679 } | |
| 1680 } | |
| 1681 ic->set_to_clean(); | |
|
1489
cff162798819
6888953: some calls to function-like macros are missing semicolons
jcoomes
parents:
1378
diff
changeset
|
1682 assert(ic->cached_oop() == NULL, |
|
cff162798819
6888953: some calls to function-like macros are missing semicolons
jcoomes
parents:
1378
diff
changeset
|
1683 "cached oop in IC should be cleared"); |
| 0 | 1684 } |
| 1685 } | |
| 1686 } | |
| 1687 } | |
| 1688 | |
| 1689 // Compiled code | |
| 1690 RelocIterator iter(this, low_boundary); | |
| 1691 while (iter.next()) { | |
| 1692 if (iter.type() == relocInfo::oop_type) { | |
| 1693 oop_Relocation* r = iter.oop_reloc(); | |
| 1694 // In this loop, we must only traverse those oops directly embedded in | |
| 1695 // the code. Other oops (oop_index>0) are seen as part of scopes_oops. | |
| 1696 assert(1 == (r->oop_is_immediate()) + | |
| 1697 (r->oop_addr() >= oops_begin() && r->oop_addr() < oops_end()), | |
| 1698 "oop must be found in exactly one place"); | |
| 1699 if (r->oop_is_immediate() && r->oop_value() != NULL) { | |
| 1700 if (can_unload(is_alive, keep_alive, r->oop_addr(), unloading_occurred)) { | |
| 1701 return; | |
| 1702 } | |
| 1703 } | |
| 1704 } | |
| 1705 } | |
| 1706 | |
| 1707 | |
| 1708 // Scopes | |
| 1709 for (oop* p = oops_begin(); p < oops_end(); p++) { | |
| 1710 if (*p == Universe::non_oop_word()) continue; // skip non-oops | |
| 1711 if (can_unload(is_alive, keep_alive, p, unloading_occurred)) { | |
| 1712 return; | |
| 1713 } | |
| 1714 } | |
| 1715 | |
| 1716 #ifndef PRODUCT | |
| 1717 // This nmethod was not unloaded; check below that all CompiledICs | |
| 1718 // refer to marked oops. | |
| 1719 { | |
| 1720 RelocIterator iter(this, low_boundary); | |
| 1721 while (iter.next()) { | |
| 1722 if (iter.type() == relocInfo::virtual_call_type) { | |
| 1723 CompiledIC *ic = CompiledIC_at(iter.reloc()); | |
| 1724 oop ic_oop = ic->cached_oop(); | |
| 1725 assert(ic_oop == NULL || is_alive->do_object_b(ic_oop), | |
| 1726 "Found unmarked ic_oop in reachable nmethod"); | |
| 1727 } | |
| 1728 } | |
| 1729 } | |
| 1730 #endif // !PRODUCT | |
| 1731 } | |
| 1732 | |
| 941 | 1733 // This method is called twice during GC -- once while |
| 1734 // tracing the "active" nmethods on thread stacks during | |
| 1735 // the (strong) marking phase, and then again when walking | |
| 1736 // the code cache contents during the weak roots processing | |
| 1737 // 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
|
1738 // 'do_strong_roots_only' flag, which is true in the first |
| 941 | 1739 // case. We want to walk the weak roots in the nmethod |
| 1740 // only in the second case. The weak roots in the nmethod | |
| 1741 // are the oops in the ExceptionCache and the InlineCache | |
| 1742 // oops. | |
|
994
753cf9794df9
6885169: merge of 4957990 and 6863023 causes conflict on do_nmethods
jrose
parents:
993
diff
changeset
|
1743 void nmethod::oops_do(OopClosure* f, bool do_strong_roots_only) { |
| 0 | 1744 // make sure the oops ready to receive visitors |
| 1745 assert(!is_zombie() && !is_unloaded(), | |
| 1746 "should not call follow on zombie or unloaded nmethod"); | |
| 1747 | |
| 1748 // If the method is not entrant or zombie then a JMP is plastered over the | |
| 1749 // first few bytes. If an oop in the old code was there, that oop | |
| 1750 // should not get GC'd. Skip the first few bytes of oops on | |
| 1751 // not-entrant methods. | |
| 1752 address low_boundary = verified_entry_point(); | |
| 1753 if (is_not_entrant()) { | |
| 1754 low_boundary += NativeJump::instruction_size; | |
| 1755 // %%% Note: On SPARC we patch only a 4-byte trap, not a full NativeJump. | |
| 1756 // (See comment above.) | |
| 1757 } | |
| 1758 | |
| 1759 // Compiled code | |
| 1760 f->do_oop((oop*) &_method); | |
|
3683
345c3bbf9c3c
store RiCompiledMethod in nmethod and:
Lukas Stadler <lukas.stadler@jku.at>
parents:
3464
diff
changeset
|
1761 f->do_oop((oop*) &_graal_compiled_method); |
|
994
753cf9794df9
6885169: merge of 4957990 and 6863023 causes conflict on do_nmethods
jrose
parents:
993
diff
changeset
|
1762 if (!do_strong_roots_only) { |
| 941 | 1763 // weak roots processing phase -- update ExceptionCache oops |
| 1764 ExceptionCache* ec = exception_cache(); | |
| 1765 while(ec != NULL) { | |
| 1766 f->do_oop((oop*)ec->exception_type_addr()); | |
| 1767 ec = ec->next(); | |
| 1768 } | |
| 1769 } // Else strong roots phase -- skip oops in ExceptionCache | |
| 0 | 1770 |
| 1771 RelocIterator iter(this, low_boundary); | |
| 941 | 1772 |
| 0 | 1773 while (iter.next()) { |
| 1774 if (iter.type() == relocInfo::oop_type ) { | |
| 1775 oop_Relocation* r = iter.oop_reloc(); | |
| 1776 // In this loop, we must only follow those oops directly embedded in | |
| 1777 // the code. Other oops (oop_index>0) are seen as part of scopes_oops. | |
| 941 | 1778 assert(1 == (r->oop_is_immediate()) + |
| 1779 (r->oop_addr() >= oops_begin() && r->oop_addr() < oops_end()), | |
| 1780 "oop must be found in exactly one place"); | |
| 0 | 1781 if (r->oop_is_immediate() && r->oop_value() != NULL) { |
| 1782 f->do_oop(r->oop_addr()); | |
| 1783 } | |
| 1784 } | |
| 1785 } | |
| 1786 | |
| 1787 // Scopes | |
|
989
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6863023: need non-perm oops in code cache for JSR 292
jrose
parents:
931
diff
changeset
|
1788 // This includes oop constants not inlined in the code stream. |
| 0 | 1789 for (oop* p = oops_begin(); p < oops_end(); p++) { |
| 1790 if (*p == Universe::non_oop_word()) continue; // skip non-oops | |
| 1791 f->do_oop(p); | |
| 1792 } | |
| 1793 } | |
| 1794 | |
|
989
148e5441d916
6863023: need non-perm oops in code cache for JSR 292
jrose
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931
diff
changeset
|
1795 #define NMETHOD_SENTINEL ((nmethod*)badAddress) |
|
148e5441d916
6863023: need non-perm oops in code cache for JSR 292
jrose
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diff
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|
1796 |
|
148e5441d916
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jrose
parents:
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diff
changeset
|
1797 nmethod* volatile nmethod::_oops_do_mark_nmethods; |
|
148e5441d916
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jrose
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931
diff
changeset
|
1798 |
|
148e5441d916
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diff
changeset
|
1799 // An nmethod is "marked" if its _mark_link is set non-null. |
|
148e5441d916
6863023: need non-perm oops in code cache for JSR 292
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diff
changeset
|
1800 // 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
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diff
changeset
|
1801 // as long as it is on the list. |
|
148e5441d916
6863023: need non-perm oops in code cache for JSR 292
jrose
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931
diff
changeset
|
1802 // 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
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diff
changeset
|
1803 bool nmethod::test_set_oops_do_mark() { |
|
148e5441d916
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diff
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|
1804 assert(nmethod::oops_do_marking_is_active(), "oops_do_marking_prologue must be called"); |
|
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diff
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|
1805 nmethod* observed_mark_link = _oops_do_mark_link; |
|
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|
1806 if (observed_mark_link == NULL) { |
|
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changeset
|
1807 // Claim this nmethod for this thread to mark. |
|
148e5441d916
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|
1808 observed_mark_link = (nmethod*) |
|
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|
1809 Atomic::cmpxchg_ptr(NMETHOD_SENTINEL, &_oops_do_mark_link, NULL); |
|
148e5441d916
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|
1810 if (observed_mark_link == NULL) { |
|
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|
1811 |
|
148e5441d916
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diff
changeset
|
1812 // Atomically append this nmethod (now claimed) to the head of the list: |
|
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|
1813 nmethod* observed_mark_nmethods = _oops_do_mark_nmethods; |
|
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|
1814 for (;;) { |
|
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|
1815 nmethod* required_mark_nmethods = observed_mark_nmethods; |
|
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changeset
|
1816 _oops_do_mark_link = required_mark_nmethods; |
|
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1817 observed_mark_nmethods = (nmethod*) |
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1818 Atomic::cmpxchg_ptr(this, &_oops_do_mark_nmethods, required_mark_nmethods); |
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1819 if (observed_mark_nmethods == required_mark_nmethods) |
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1820 break; |
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1821 } |
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1822 // Mark was clear when we first saw this guy. |
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1823 NOT_PRODUCT(if (TraceScavenge) print_on(tty, "oops_do, mark")); |
|
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1824 return false; |
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1825 } |
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1826 } |
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1827 // On fall through, another racing thread marked this nmethod before we did. |
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1828 return true; |
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1829 } |
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1830 |
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1831 void nmethod::oops_do_marking_prologue() { |
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1832 NOT_PRODUCT(if (TraceScavenge) tty->print_cr("[oops_do_marking_prologue")); |
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1833 assert(_oops_do_mark_nmethods == NULL, "must not call oops_do_marking_prologue twice in a row"); |
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1834 // We use cmpxchg_ptr instead of regular assignment here because the user |
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1835 // may fork a bunch of threads, and we need them all to see the same state. |
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1836 void* observed = Atomic::cmpxchg_ptr(NMETHOD_SENTINEL, &_oops_do_mark_nmethods, NULL); |
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1837 guarantee(observed == NULL, "no races in this sequential code"); |
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1838 } |
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1839 |
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1840 void nmethod::oops_do_marking_epilogue() { |
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1841 assert(_oops_do_mark_nmethods != NULL, "must not call oops_do_marking_epilogue twice in a row"); |
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1842 nmethod* cur = _oops_do_mark_nmethods; |
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1843 while (cur != NMETHOD_SENTINEL) { |
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1844 assert(cur != NULL, "not NULL-terminated"); |
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1845 nmethod* next = cur->_oops_do_mark_link; |
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1846 cur->_oops_do_mark_link = NULL; |
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1847 cur->fix_oop_relocations(); |
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1848 NOT_PRODUCT(if (TraceScavenge) cur->print_on(tty, "oops_do, unmark")); |
|
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1849 cur = next; |
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1850 } |
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1851 void* required = _oops_do_mark_nmethods; |
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1852 void* observed = Atomic::cmpxchg_ptr(NULL, &_oops_do_mark_nmethods, required); |
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1853 guarantee(observed == required, "no races in this sequential code"); |
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1854 NOT_PRODUCT(if (TraceScavenge) tty->print_cr("oops_do_marking_epilogue]")); |
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1855 } |
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1856 |
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1857 class DetectScavengeRoot: public OopClosure { |
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1858 bool _detected_scavenge_root; |
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1859 public: |
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1860 DetectScavengeRoot() : _detected_scavenge_root(false) |
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1861 { NOT_PRODUCT(_print_nm = NULL); } |
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1862 bool detected_scavenge_root() { return _detected_scavenge_root; } |
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1863 virtual void do_oop(oop* p) { |
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1864 if ((*p) != NULL && (*p)->is_scavengable()) { |
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1865 NOT_PRODUCT(maybe_print(p)); |
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1866 _detected_scavenge_root = true; |
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1867 } |
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1868 } |
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1869 virtual void do_oop(narrowOop* p) { ShouldNotReachHere(); } |
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1870 |
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1871 #ifndef PRODUCT |
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1872 nmethod* _print_nm; |
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1873 void maybe_print(oop* p) { |
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1874 if (_print_nm == NULL) return; |
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1875 if (!_detected_scavenge_root) _print_nm->print_on(tty, "new scavenge root"); |
|
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1876 tty->print_cr(""PTR_FORMAT"[offset=%d] detected scavengable oop "PTR_FORMAT" (found at "PTR_FORMAT")", |
|
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1877 _print_nm, (int)((intptr_t)p - (intptr_t)_print_nm), |
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1878 (intptr_t)(*p), (intptr_t)p); |
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1879 (*p)->print(); |
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1880 } |
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1881 #endif //PRODUCT |
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1882 }; |
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1883 |
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1884 bool nmethod::detect_scavenge_root_oops() { |
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1885 DetectScavengeRoot detect_scavenge_root; |
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1886 NOT_PRODUCT(if (TraceScavenge) detect_scavenge_root._print_nm = this); |
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1887 oops_do(&detect_scavenge_root); |
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1888 return detect_scavenge_root.detected_scavenge_root(); |
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1889 } |
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1890 |
| 0 | 1891 // Method that knows how to preserve outgoing arguments at call. This method must be |
| 1892 // called with a frame corresponding to a Java invoke | |
| 1893 void nmethod::preserve_callee_argument_oops(frame fr, const RegisterMap *reg_map, OopClosure* f) { | |
| 1692 | 1894 #ifndef SHARK |
| 0 | 1895 if (!method()->is_native()) { |
| 1896 SimpleScopeDesc ssd(this, fr.pc()); | |
| 2142 | 1897 Bytecode_invoke call(ssd.method(), ssd.bci()); |
|
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1898 // compiled invokedynamic call sites have an implicit receiver at |
|
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1899 // resolution time, so make sure it gets GC'ed. |
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1900 bool has_receiver = !call.is_invokestatic(); |
|
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1901 Symbol* signature = call.signature(); |
|
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1902 fr.oops_compiled_arguments_do(signature, has_receiver, reg_map, f); |
| 0 | 1903 } |
| 1692 | 1904 #endif // !SHARK |
| 0 | 1905 } |
| 1906 | |
| 1907 | |
| 1908 oop nmethod::embeddedOop_at(u_char* p) { | |
|
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1909 RelocIterator iter(this, p, p + 1); |
| 0 | 1910 while (iter.next()) |
| 1911 if (iter.type() == relocInfo::oop_type) { | |
| 1912 return iter.oop_reloc()->oop_value(); | |
| 1913 } | |
| 1914 return NULL; | |
| 1915 } | |
| 1916 | |
| 1917 | |
| 1918 inline bool includes(void* p, void* from, void* to) { | |
| 1919 return from <= p && p < to; | |
| 1920 } | |
| 1921 | |
| 1922 | |
| 1923 void nmethod::copy_scopes_pcs(PcDesc* pcs, int count) { | |
| 1924 assert(count >= 2, "must be sentinel values, at least"); | |
| 1925 | |
| 1926 #ifdef ASSERT | |
| 1927 // must be sorted and unique; we do a binary search in find_pc_desc() | |
| 1928 int prev_offset = pcs[0].pc_offset(); | |
| 1929 assert(prev_offset == PcDesc::lower_offset_limit, | |
| 1930 "must start with a sentinel"); | |
| 1931 for (int i = 1; i < count; i++) { | |
| 1932 int this_offset = pcs[i].pc_offset(); | |
| 1933 assert(this_offset > prev_offset, "offsets must be sorted"); | |
| 1934 prev_offset = this_offset; | |
| 1935 } | |
| 1936 assert(prev_offset == PcDesc::upper_offset_limit, | |
| 1937 "must end with a sentinel"); | |
| 1938 #endif //ASSERT | |
| 1939 | |
|
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1940 // Search for MethodHandle invokes and tag the nmethod. |
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1941 for (int i = 0; i < count; i++) { |
|
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1942 if (pcs[i].is_method_handle_invoke()) { |
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1943 set_has_method_handle_invokes(true); |
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1944 break; |
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1945 } |
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1946 } |
|
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1947 assert(has_method_handle_invokes() == (_deoptimize_mh_offset != -1), "must have deopt mh handler"); |
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1948 |
| 0 | 1949 int size = count * sizeof(PcDesc); |
| 1950 assert(scopes_pcs_size() >= size, "oob"); | |
| 1951 memcpy(scopes_pcs_begin(), pcs, size); | |
| 1952 | |
| 1953 // Adjust the final sentinel downward. | |
| 1954 PcDesc* last_pc = &scopes_pcs_begin()[count-1]; | |
| 1955 assert(last_pc->pc_offset() == PcDesc::upper_offset_limit, "sanity"); | |
| 1748 | 1956 last_pc->set_pc_offset(content_size() + 1); |
| 0 | 1957 for (; last_pc + 1 < scopes_pcs_end(); last_pc += 1) { |
| 1958 // Fill any rounding gaps with copies of the last record. | |
| 1959 last_pc[1] = last_pc[0]; | |
| 1960 } | |
| 1961 // The following assert could fail if sizeof(PcDesc) is not | |
| 1962 // an integral multiple of oopSize (the rounding term). | |
| 1963 // If it fails, change the logic to always allocate a multiple | |
| 1964 // of sizeof(PcDesc), and fill unused words with copies of *last_pc. | |
| 1965 assert(last_pc + 1 == scopes_pcs_end(), "must match exactly"); | |
| 1966 } | |
| 1967 | |
| 1968 void nmethod::copy_scopes_data(u_char* buffer, int size) { | |
| 1969 assert(scopes_data_size() >= size, "oob"); | |
| 1970 memcpy(scopes_data_begin(), buffer, size); | |
| 1971 } | |
| 1972 | |
| 1973 | |
| 1974 #ifdef ASSERT | |
| 1975 static PcDesc* linear_search(nmethod* nm, int pc_offset, bool approximate) { | |
| 1976 PcDesc* lower = nm->scopes_pcs_begin(); | |
| 1977 PcDesc* upper = nm->scopes_pcs_end(); | |
| 1978 lower += 1; // exclude initial sentinel | |
| 1979 PcDesc* res = NULL; | |
| 1980 for (PcDesc* p = lower; p < upper; p++) { | |
| 1981 NOT_PRODUCT(--nmethod_stats.pc_desc_tests); // don't count this call to match_desc | |
| 1982 if (match_desc(p, pc_offset, approximate)) { | |
| 1983 if (res == NULL) | |
| 1984 res = p; | |
| 1985 else | |
| 1986 res = (PcDesc*) badAddress; | |
| 1987 } | |
| 1988 } | |
| 1989 return res; | |
| 1990 } | |
| 1991 #endif | |
| 1992 | |
| 1993 | |
| 1994 // Finds a PcDesc with real-pc equal to "pc" | |
| 1995 PcDesc* nmethod::find_pc_desc_internal(address pc, bool approximate) { | |
| 1748 | 1996 address base_address = code_begin(); |
| 0 | 1997 if ((pc < base_address) || |
| 1998 (pc - base_address) >= (ptrdiff_t) PcDesc::upper_offset_limit) { | |
| 1999 return NULL; // PC is wildly out of range | |
| 2000 } | |
| 2001 int pc_offset = (int) (pc - base_address); | |
| 2002 | |
| 2003 // Check the PcDesc cache if it contains the desired PcDesc | |
| 2004 // (This as an almost 100% hit rate.) | |
| 2005 PcDesc* res = _pc_desc_cache.find_pc_desc(pc_offset, approximate); | |
| 2006 if (res != NULL) { | |
| 2007 assert(res == linear_search(this, pc_offset, approximate), "cache ok"); | |
| 2008 return res; | |
| 2009 } | |
| 2010 | |
| 2011 // Fallback algorithm: quasi-linear search for the PcDesc | |
| 2012 // Find the last pc_offset less than the given offset. | |
| 2013 // The successor must be the required match, if there is a match at all. | |
| 2014 // (Use a fixed radix to avoid expensive affine pointer arithmetic.) | |
| 2015 PcDesc* lower = scopes_pcs_begin(); | |
| 2016 PcDesc* upper = scopes_pcs_end(); | |
| 2017 upper -= 1; // exclude final sentinel | |
| 2018 if (lower >= upper) return NULL; // native method; no PcDescs at all | |
| 2019 | |
| 2020 #define assert_LU_OK \ | |
| 2021 /* invariant on lower..upper during the following search: */ \ | |
| 2022 assert(lower->pc_offset() < pc_offset, "sanity"); \ | |
| 2023 assert(upper->pc_offset() >= pc_offset, "sanity") | |
| 2024 assert_LU_OK; | |
| 2025 | |
| 2026 // Use the last successful return as a split point. | |
| 2027 PcDesc* mid = _pc_desc_cache.last_pc_desc(); | |
| 2028 NOT_PRODUCT(++nmethod_stats.pc_desc_searches); | |
| 2029 if (mid->pc_offset() < pc_offset) { | |
| 2030 lower = mid; | |
| 2031 } else { | |
| 2032 upper = mid; | |
| 2033 } | |
| 2034 | |
| 2035 // Take giant steps at first (4096, then 256, then 16, then 1) | |
| 2036 const int LOG2_RADIX = 4 /*smaller steps in debug mode:*/ debug_only(-1); | |
| 2037 const int RADIX = (1 << LOG2_RADIX); | |
| 2038 for (int step = (1 << (LOG2_RADIX*3)); step > 1; step >>= LOG2_RADIX) { | |
| 2039 while ((mid = lower + step) < upper) { | |
| 2040 assert_LU_OK; | |
| 2041 NOT_PRODUCT(++nmethod_stats.pc_desc_searches); | |
| 2042 if (mid->pc_offset() < pc_offset) { | |
| 2043 lower = mid; | |
| 2044 } else { | |
| 2045 upper = mid; | |
| 2046 break; | |
| 2047 } | |
| 2048 } | |
| 2049 assert_LU_OK; | |
| 2050 } | |
| 2051 | |
| 2052 // Sneak up on the value with a linear search of length ~16. | |
| 2053 while (true) { | |
| 2054 assert_LU_OK; | |
| 2055 mid = lower + 1; | |
| 2056 NOT_PRODUCT(++nmethod_stats.pc_desc_searches); | |
| 2057 if (mid->pc_offset() < pc_offset) { | |
| 2058 lower = mid; | |
| 2059 } else { | |
| 2060 upper = mid; | |
| 2061 break; | |
| 2062 } | |
| 2063 } | |
| 2064 #undef assert_LU_OK | |
| 2065 | |
| 2066 if (match_desc(upper, pc_offset, approximate)) { | |
| 2067 assert(upper == linear_search(this, pc_offset, approximate), "search ok"); | |
| 2068 _pc_desc_cache.add_pc_desc(upper); | |
| 2069 return upper; | |
| 2070 } else { | |
| 2071 assert(NULL == linear_search(this, pc_offset, approximate), "search ok"); | |
| 2072 return NULL; | |
| 2073 } | |
| 2074 } | |
| 2075 | |
| 2076 | |
| 2077 bool nmethod::check_all_dependencies() { | |
| 2078 bool found_check = false; | |
| 2079 // wholesale check of all dependencies | |
| 2080 for (Dependencies::DepStream deps(this); deps.next(); ) { | |
| 2081 if (deps.check_dependency() != NULL) { | |
| 2082 found_check = true; | |
| 2083 NOT_DEBUG(break); | |
| 2084 } | |
| 2085 } | |
| 2086 return found_check; // tell caller if we found anything | |
| 2087 } | |
| 2088 | |
| 2089 bool nmethod::check_dependency_on(DepChange& changes) { | |
| 2090 // What has happened: | |
| 2091 // 1) a new class dependee has been added | |
| 2092 // 2) dependee and all its super classes have been marked | |
| 2093 bool found_check = false; // set true if we are upset | |
| 2094 for (Dependencies::DepStream deps(this); deps.next(); ) { | |
| 2095 // Evaluate only relevant dependencies. | |
| 2096 if (deps.spot_check_dependency_at(changes) != NULL) { | |
| 2097 found_check = true; | |
| 2098 NOT_DEBUG(break); | |
| 2099 } | |
| 2100 } | |
| 2101 return found_check; | |
| 2102 } | |
| 2103 | |
| 2104 bool nmethod::is_evol_dependent_on(klassOop dependee) { | |
| 2105 instanceKlass *dependee_ik = instanceKlass::cast(dependee); | |
| 2106 objArrayOop dependee_methods = dependee_ik->methods(); | |
| 2107 for (Dependencies::DepStream deps(this); deps.next(); ) { | |
| 2108 if (deps.type() == Dependencies::evol_method) { | |
| 2109 methodOop method = deps.method_argument(0); | |
| 2110 for (int j = 0; j < dependee_methods->length(); j++) { | |
| 2111 if ((methodOop) dependee_methods->obj_at(j) == method) { | |
| 2112 // RC_TRACE macro has an embedded ResourceMark | |
| 2113 RC_TRACE(0x01000000, | |
| 2114 ("Found evol dependency of nmethod %s.%s(%s) compile_id=%d on method %s.%s(%s)", | |
| 2115 _method->method_holder()->klass_part()->external_name(), | |
| 2116 _method->name()->as_C_string(), | |
| 2117 _method->signature()->as_C_string(), compile_id(), | |
| 2118 method->method_holder()->klass_part()->external_name(), | |
| 2119 method->name()->as_C_string(), | |
| 2120 method->signature()->as_C_string())); | |
| 2121 if (TraceDependencies || LogCompilation) | |
| 2122 deps.log_dependency(dependee); | |
| 2123 return true; | |
| 2124 } | |
| 2125 } | |
| 2126 } | |
| 2127 } | |
| 2128 return false; | |
| 2129 } | |
| 2130 | |
| 2131 // Called from mark_for_deoptimization, when dependee is invalidated. | |
| 2132 bool nmethod::is_dependent_on_method(methodOop dependee) { | |
| 2133 for (Dependencies::DepStream deps(this); deps.next(); ) { | |
| 2134 if (deps.type() != Dependencies::evol_method) | |
| 2135 continue; | |
| 2136 methodOop method = deps.method_argument(0); | |
| 2137 if (method == dependee) return true; | |
| 2138 } | |
| 2139 return false; | |
| 2140 } | |
| 2141 | |
| 2142 | |
| 2143 bool nmethod::is_patchable_at(address instr_addr) { | |
| 1748 | 2144 assert(insts_contains(instr_addr), "wrong nmethod used"); |
| 0 | 2145 if (is_zombie()) { |
| 2146 // a zombie may never be patched | |
| 2147 return false; | |
| 2148 } | |
| 2149 return true; | |
| 2150 } | |
| 2151 | |
| 2152 | |
| 2153 address nmethod::continuation_for_implicit_exception(address pc) { | |
| 2154 // Exception happened outside inline-cache check code => we are inside | |
| 2155 // an active nmethod => use cpc to determine a return address | |
| 1748 | 2156 int exception_offset = pc - code_begin(); |
| 0 | 2157 int cont_offset = ImplicitExceptionTable(this).at( exception_offset ); |
| 2158 #ifdef ASSERT | |
| 2159 if (cont_offset == 0) { | |
| 2160 Thread* thread = ThreadLocalStorage::get_thread_slow(); | |
| 2161 ResetNoHandleMark rnm; // Might be called from LEAF/QUICK ENTRY | |
| 2162 HandleMark hm(thread); | |
| 2163 ResourceMark rm(thread); | |
| 2164 CodeBlob* cb = CodeCache::find_blob(pc); | |
| 2165 assert(cb != NULL && cb == this, ""); | |
| 2166 tty->print_cr("implicit exception happened at " INTPTR_FORMAT, pc); | |
| 2167 print(); | |
| 2168 method()->print_codes(); | |
| 2169 print_code(); | |
| 2170 print_pcs(); | |
| 2171 } | |
| 2172 #endif | |
| 1250 | 2173 if (cont_offset == 0) { |
| 2174 // Let the normal error handling report the exception | |
| 2175 return NULL; | |
| 2176 } | |
| 1748 | 2177 return code_begin() + cont_offset; |
| 0 | 2178 } |
| 2179 | |
| 2180 | |
| 2181 | |
| 2182 void nmethod_init() { | |
| 2183 // make sure you didn't forget to adjust the filler fields | |
| 2184 assert(sizeof(nmethod) % oopSize == 0, "nmethod size must be multiple of a word"); | |
| 2185 } | |
| 2186 | |
| 2187 | |
| 2188 //------------------------------------------------------------------------------------------- | |
| 2189 | |
| 2190 | |
| 2191 // QQQ might we make this work from a frame?? | |
| 2192 nmethodLocker::nmethodLocker(address pc) { | |
| 2193 CodeBlob* cb = CodeCache::find_blob(pc); | |
| 2194 guarantee(cb != NULL && cb->is_nmethod(), "bad pc for a nmethod found"); | |
| 2195 _nm = (nmethod*)cb; | |
| 2196 lock_nmethod(_nm); | |
| 2197 } | |
| 2198 | |
|
2342
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2199 // Only JvmtiDeferredEvent::compiled_method_unload_event() |
|
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|
2200 // should pass zombie_ok == true. |
|
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|
2201 void nmethodLocker::lock_nmethod(nmethod* nm, bool zombie_ok) { |
| 0 | 2202 if (nm == NULL) return; |
| 2203 Atomic::inc(&nm->_lock_count); | |
|
2342
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|
2204 guarantee(zombie_ok || !nm->is_zombie(), "cannot lock a zombie method"); |
| 0 | 2205 } |
| 2206 | |
| 2207 void nmethodLocker::unlock_nmethod(nmethod* nm) { | |
| 2208 if (nm == NULL) return; | |
| 2209 Atomic::dec(&nm->_lock_count); | |
| 2210 guarantee(nm->_lock_count >= 0, "unmatched nmethod lock/unlock"); | |
| 2211 } | |
| 2212 | |
| 1204 | 2213 |
| 2214 // ----------------------------------------------------------------------------- | |
| 2215 // nmethod::get_deopt_original_pc | |
| 2216 // | |
| 2217 // Return the original PC for the given PC if: | |
| 2218 // (a) the given PC belongs to a nmethod and | |
| 2219 // (b) it is a deopt PC | |
| 2220 address nmethod::get_deopt_original_pc(const frame* fr) { | |
| 2221 if (fr->cb() == NULL) return NULL; | |
| 2222 | |
| 2223 nmethod* nm = fr->cb()->as_nmethod_or_null(); | |
| 2224 if (nm != NULL && nm->is_deopt_pc(fr->pc())) | |
| 2225 return nm->get_original_pc(fr); | |
| 2226 | |
| 2227 return NULL; | |
| 0 | 2228 } |
| 2229 | |
| 2230 | |
| 2231 // ----------------------------------------------------------------------------- | |
|
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2232 // MethodHandle |
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2233 |
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2234 bool nmethod::is_method_handle_return(address return_pc) { |
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2235 if (!has_method_handle_invokes()) return false; |
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2236 PcDesc* pd = pc_desc_at(return_pc); |
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2237 if (pd == NULL) |
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2238 return false; |
|
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2239 return pd->is_method_handle_invoke(); |
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2240 } |
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2241 |
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2242 |
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2243 // ----------------------------------------------------------------------------- |
| 0 | 2244 // Verification |
| 2245 | |
|
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2246 class VerifyOopsClosure: public OopClosure { |
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2247 nmethod* _nm; |
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2248 bool _ok; |
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2249 public: |
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2250 VerifyOopsClosure(nmethod* nm) : _nm(nm), _ok(true) { } |
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2251 bool ok() { return _ok; } |
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2252 virtual void do_oop(oop* p) { |
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2253 if ((*p) == NULL || (*p)->is_oop()) return; |
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2254 if (_ok) { |
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2255 _nm->print_nmethod(true); |
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|
2256 _ok = false; |
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|
2257 } |
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2258 tty->print_cr("*** non-oop "PTR_FORMAT" found at "PTR_FORMAT" (offset %d)", |
|
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2259 (intptr_t)(*p), (intptr_t)p, (int)((intptr_t)p - (intptr_t)_nm)); |
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2260 } |
|
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2261 virtual void do_oop(narrowOop* p) { ShouldNotReachHere(); } |
|
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|
2262 }; |
|
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2263 |
| 0 | 2264 void nmethod::verify() { |
| 2265 | |
| 2266 // Hmm. OSR methods can be deopted but not marked as zombie or not_entrant | |
| 2267 // seems odd. | |
| 2268 | |
| 2269 if( is_zombie() || is_not_entrant() ) | |
| 2270 return; | |
| 2271 | |
| 2272 // Make sure all the entry points are correctly aligned for patching. | |
| 2273 NativeJump::check_verified_entry_alignment(entry_point(), verified_entry_point()); | |
| 2274 | |
| 2275 assert(method()->is_oop(), "must be valid"); | |
| 2276 | |
| 2277 ResourceMark rm; | |
| 2278 | |
| 2279 if (!CodeCache::contains(this)) { | |
|
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|
2280 fatal(err_msg("nmethod at " INTPTR_FORMAT " not in zone", this)); |
| 0 | 2281 } |
| 2282 | |
| 2283 if(is_native_method() ) | |
| 2284 return; | |
| 2285 | |
| 2286 nmethod* nm = CodeCache::find_nmethod(verified_entry_point()); | |
| 2287 if (nm != this) { | |
|
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2288 fatal(err_msg("findNMethod did not find this nmethod (" INTPTR_FORMAT ")", |
|
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2289 this)); |
| 0 | 2290 } |
| 2291 | |
| 2292 for (PcDesc* p = scopes_pcs_begin(); p < scopes_pcs_end(); p++) { | |
| 2293 if (! p->verify(this)) { | |
| 2294 tty->print_cr("\t\tin nmethod at " INTPTR_FORMAT " (pcs)", this); | |
| 2295 } | |
| 2296 } | |
| 2297 | |
|
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|
2298 VerifyOopsClosure voc(this); |
|
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|
2299 oops_do(&voc); |
|
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|
2300 assert(voc.ok(), "embedded oops must be OK"); |
|
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|
2301 verify_scavenge_root_oops(); |
|
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|
2302 |
| 0 | 2303 verify_scopes(); |
| 2304 } | |
| 2305 | |
| 2306 | |
| 2307 void nmethod::verify_interrupt_point(address call_site) { | |
| 2308 // This code does not work in release mode since | |
| 2309 // owns_lock only is available in debug mode. | |
| 2310 CompiledIC* ic = NULL; | |
| 2311 Thread *cur = Thread::current(); | |
| 2312 if (CompiledIC_lock->owner() == cur || | |
| 2313 ((cur->is_VM_thread() || cur->is_ConcurrentGC_thread()) && | |
| 2314 SafepointSynchronize::is_at_safepoint())) { | |
| 2315 ic = CompiledIC_at(call_site); | |
| 2316 CHECK_UNHANDLED_OOPS_ONLY(Thread::current()->clear_unhandled_oops()); | |
| 2317 } else { | |
| 2318 MutexLocker ml_verify (CompiledIC_lock); | |
| 2319 ic = CompiledIC_at(call_site); | |
| 2320 } | |
| 2321 PcDesc* pd = pc_desc_at(ic->end_of_call()); | |
| 2322 assert(pd != NULL, "PcDesc must exist"); | |
| 2323 for (ScopeDesc* sd = new ScopeDesc(this, pd->scope_decode_offset(), | |
|
3018
5857923e563c
Fixed an issue with frame states in exception dispatch chains (now we are correctly rethrowing the exception immediately at entering the interpreter).
Thomas Wuerthinger <thomas@wuerthinger.net>
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2891
diff
changeset
|
2324 pd->obj_decode_offset(), pd->should_reexecute(), pd->rethrow_exception(), |
|
1253
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diff
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|
2325 pd->return_oop()); |
| 0 | 2326 !sd->is_top(); sd = sd->sender()) { |
| 2327 sd->verify(); | |
| 2328 } | |
| 2329 } | |
| 2330 | |
| 2331 void nmethod::verify_scopes() { | |
| 2332 if( !method() ) return; // Runtime stubs have no scope | |
| 2333 if (method()->is_native()) return; // Ignore stub methods. | |
| 2334 // iterate through all interrupt point | |
| 2335 // and verify the debug information is valid. | |
| 2336 RelocIterator iter((nmethod*)this); | |
| 2337 while (iter.next()) { | |
| 2338 address stub = NULL; | |
| 2339 switch (iter.type()) { | |
| 2340 case relocInfo::virtual_call_type: | |
| 2341 verify_interrupt_point(iter.addr()); | |
| 2342 break; | |
| 2343 case relocInfo::opt_virtual_call_type: | |
| 2344 stub = iter.opt_virtual_call_reloc()->static_stub(); | |
| 2345 verify_interrupt_point(iter.addr()); | |
| 2346 break; | |
| 2347 case relocInfo::static_call_type: | |
| 2348 stub = iter.static_call_reloc()->static_stub(); | |
| 2349 //verify_interrupt_point(iter.addr()); | |
| 2350 break; | |
| 2351 case relocInfo::runtime_call_type: | |
| 2352 address destination = iter.reloc()->value(); | |
| 2353 // Right now there is no way to find out which entries support | |
| 2354 // an interrupt point. It would be nice if we had this | |
| 2355 // information in a table. | |
| 2356 break; | |
| 2357 } | |
|
2891
75a99b4f1c98
Rebranded C++ part from C1X to Graal.
Thomas Wuerthinger <thomas@wuerthinger.net>
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|
2358 assert(UseGraal || stub == NULL || stub_contains(stub), "static call stub outside stub section"); |
| 0 | 2359 } |
| 2360 } | |
| 2361 | |
| 2362 | |
| 2363 // ----------------------------------------------------------------------------- | |
| 2364 // Non-product code | |
| 2365 #ifndef PRODUCT | |
| 2366 | |
|
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|
2367 class DebugScavengeRoot: public OopClosure { |
|
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|
2368 nmethod* _nm; |
|
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|
2369 bool _ok; |
|
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|
2370 public: |
|
148e5441d916
6863023: need non-perm oops in code cache for JSR 292
jrose
parents:
931
diff
changeset
|
2371 DebugScavengeRoot(nmethod* nm) : _nm(nm), _ok(true) { } |
|
148e5441d916
6863023: need non-perm oops in code cache for JSR 292
jrose
parents:
931
diff
changeset
|
2372 bool ok() { return _ok; } |
|
148e5441d916
6863023: need non-perm oops in code cache for JSR 292
jrose
parents:
931
diff
changeset
|
2373 virtual void do_oop(oop* p) { |
|
148e5441d916
6863023: need non-perm oops in code cache for JSR 292
jrose
parents:
931
diff
changeset
|
2374 if ((*p) == NULL || !(*p)->is_scavengable()) return; |
|
148e5441d916
6863023: need non-perm oops in code cache for JSR 292
jrose
parents:
931
diff
changeset
|
2375 if (_ok) { |
|
148e5441d916
6863023: need non-perm oops in code cache for JSR 292
jrose
parents:
931
diff
changeset
|
2376 _nm->print_nmethod(true); |
|
148e5441d916
6863023: need non-perm oops in code cache for JSR 292
jrose
parents:
931
diff
changeset
|
2377 _ok = false; |
|
148e5441d916
6863023: need non-perm oops in code cache for JSR 292
jrose
parents:
931
diff
changeset
|
2378 } |
|
3377
2aa9ddbb9e60
7041789: 30% perf regression with c2/arm following 7017732
jmasa
parents:
2405
diff
changeset
|
2379 tty->print_cr("*** scavengable oop "PTR_FORMAT" found at "PTR_FORMAT" (offset %d)", |
|
989
148e5441d916
6863023: need non-perm oops in code cache for JSR 292
jrose
parents:
931
diff
changeset
|
2380 (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
|
2381 (*p)->print(); |
|
148e5441d916
6863023: need non-perm oops in code cache for JSR 292
jrose
parents:
931
diff
changeset
|
2382 } |
|
148e5441d916
6863023: need non-perm oops in code cache for JSR 292
jrose
parents:
931
diff
changeset
|
2383 virtual void do_oop(narrowOop* p) { ShouldNotReachHere(); } |
|
148e5441d916
6863023: need non-perm oops in code cache for JSR 292
jrose
parents:
931
diff
changeset
|
2384 }; |
| 0 | 2385 |
|
989
148e5441d916
6863023: need non-perm oops in code cache for JSR 292
jrose
parents:
931
diff
changeset
|
2386 void nmethod::verify_scavenge_root_oops() { |
|
148e5441d916
6863023: need non-perm oops in code cache for JSR 292
jrose
parents:
931
diff
changeset
|
2387 if (!on_scavenge_root_list()) { |
|
148e5441d916
6863023: need non-perm oops in code cache for JSR 292
jrose
parents:
931
diff
changeset
|
2388 // 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
|
2389 DebugScavengeRoot debug_scavenge_root(this); |
|
148e5441d916
6863023: need non-perm oops in code cache for JSR 292
jrose
parents:
931
diff
changeset
|
2390 oops_do(&debug_scavenge_root); |
|
148e5441d916
6863023: need non-perm oops in code cache for JSR 292
jrose
parents:
931
diff
changeset
|
2391 if (!debug_scavenge_root.ok()) |
|
3377
2aa9ddbb9e60
7041789: 30% perf regression with c2/arm following 7017732
jmasa
parents:
2405
diff
changeset
|
2392 fatal("found an unadvertised bad scavengable oop in the code cache"); |
| 0 | 2393 } |
|
989
148e5441d916
6863023: need non-perm oops in code cache for JSR 292
jrose
parents:
931
diff
changeset
|
2394 assert(scavenge_root_not_marked(), ""); |
| 0 | 2395 } |
| 2396 | |
|
100
c7c777385a15
6667042: PrintAssembly option does not work without special plugin
jrose
parents:
30
diff
changeset
|
2397 #endif // PRODUCT |
| 0 | 2398 |
| 2399 // Printing operations | |
| 2400 | |
| 2401 void nmethod::print() const { | |
| 2402 ResourceMark rm; | |
| 2403 ttyLocker ttyl; // keep the following output all in one block | |
| 2404 | |
|
2405
3d58a4983660
7022998: JSR 292 recursive method handle calls inline themselves infinitely
twisti
parents:
2376
diff
changeset
|
2405 tty->print("Compiled method "); |
| 0 | 2406 |
| 2407 if (is_compiled_by_c1()) { | |
| 2408 tty->print("(c1) "); | |
| 2409 } else if (is_compiled_by_c2()) { | |
| 2410 tty->print("(c2) "); | |
| 1692 | 2411 } else if (is_compiled_by_shark()) { |
| 2412 tty->print("(shark) "); | |
| 0 | 2413 } else { |
| 2414 tty->print("(nm) "); | |
| 2415 } | |
| 2416 | |
|
2405
3d58a4983660
7022998: JSR 292 recursive method handle calls inline themselves infinitely
twisti
parents:
2376
diff
changeset
|
2417 print_on(tty, NULL); |
|
3d58a4983660
7022998: JSR 292 recursive method handle calls inline themselves infinitely
twisti
parents:
2376
diff
changeset
|
2418 |
| 0 | 2419 if (WizardMode) { |
| 2420 tty->print("((nmethod*) "INTPTR_FORMAT ") ", this); | |
| 2421 tty->print(" for method " INTPTR_FORMAT , (address)method()); | |
| 2422 tty->print(" { "); | |
| 2423 if (is_in_use()) tty->print("in_use "); | |
| 2424 if (is_not_entrant()) tty->print("not_entrant "); | |
| 2425 if (is_zombie()) tty->print("zombie "); | |
| 2426 if (is_unloaded()) tty->print("unloaded "); | |
|
989
148e5441d916
6863023: need non-perm oops in code cache for JSR 292
jrose
parents:
931
diff
changeset
|
2427 if (on_scavenge_root_list()) tty->print("scavenge_root "); |
| 0 | 2428 tty->print_cr("}:"); |
| 2429 } | |
| 2430 if (size () > 0) tty->print_cr(" total in heap [" INTPTR_FORMAT "," INTPTR_FORMAT "] = %d", | |
| 2431 (address)this, | |
| 2432 (address)this + size(), | |
| 2433 size()); | |
| 2434 if (relocation_size () > 0) tty->print_cr(" relocation [" INTPTR_FORMAT "," INTPTR_FORMAT "] = %d", | |
| 2435 relocation_begin(), | |
| 2436 relocation_end(), | |
| 2437 relocation_size()); | |
|
1762
0878d7bae69f
6961697: move nmethod constants section before instruction section
twisti
parents:
1748
diff
changeset
|
2438 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
|
2439 consts_begin(), |
|
0878d7bae69f
6961697: move nmethod constants section before instruction section
twisti
parents:
1748
diff
changeset
|
2440 consts_end(), |
|
0878d7bae69f
6961697: move nmethod constants section before instruction section
twisti
parents:
1748
diff
changeset
|
2441 consts_size()); |
| 1748 | 2442 if (insts_size () > 0) tty->print_cr(" main code [" INTPTR_FORMAT "," INTPTR_FORMAT "] = %d", |
| 2443 insts_begin(), | |
| 2444 insts_end(), | |
| 2445 insts_size()); | |
| 0 | 2446 if (stub_size () > 0) tty->print_cr(" stub code [" INTPTR_FORMAT "," INTPTR_FORMAT "] = %d", |
| 2447 stub_begin(), | |
| 2448 stub_end(), | |
| 2449 stub_size()); | |
|
1563
1a5913bf5e19
6951083: oops and relocations should part of nmethod not CodeBlob
twisti
parents:
1538
diff
changeset
|
2450 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
|
2451 oops_begin(), |
|
1a5913bf5e19
6951083: oops and relocations should part of nmethod not CodeBlob
twisti
parents:
1538
diff
changeset
|
2452 oops_end(), |
|
1a5913bf5e19
6951083: oops and relocations should part of nmethod not CodeBlob
twisti
parents:
1538
diff
changeset
|
2453 oops_size()); |
| 0 | 2454 if (scopes_data_size () > 0) tty->print_cr(" scopes data [" INTPTR_FORMAT "," INTPTR_FORMAT "] = %d", |
| 2455 scopes_data_begin(), | |
| 2456 scopes_data_end(), | |
| 2457 scopes_data_size()); | |
| 2458 if (scopes_pcs_size () > 0) tty->print_cr(" scopes pcs [" INTPTR_FORMAT "," INTPTR_FORMAT "] = %d", | |
| 2459 scopes_pcs_begin(), | |
| 2460 scopes_pcs_end(), | |
| 2461 scopes_pcs_size()); | |
| 2462 if (dependencies_size () > 0) tty->print_cr(" dependencies [" INTPTR_FORMAT "," INTPTR_FORMAT "] = %d", | |
| 2463 dependencies_begin(), | |
| 2464 dependencies_end(), | |
| 2465 dependencies_size()); | |
| 2466 if (handler_table_size() > 0) tty->print_cr(" handler table [" INTPTR_FORMAT "," INTPTR_FORMAT "] = %d", | |
| 2467 handler_table_begin(), | |
| 2468 handler_table_end(), | |
| 2469 handler_table_size()); | |
| 2470 if (nul_chk_table_size() > 0) tty->print_cr(" nul chk table [" INTPTR_FORMAT "," INTPTR_FORMAT "] = %d", | |
| 2471 nul_chk_table_begin(), | |
| 2472 nul_chk_table_end(), | |
| 2473 nul_chk_table_size()); | |
| 2474 } | |
| 2475 | |
|
100
c7c777385a15
6667042: PrintAssembly option does not work without special plugin
jrose
parents:
30
diff
changeset
|
2476 void nmethod::print_code() { |
|
c7c777385a15
6667042: PrintAssembly option does not work without special plugin
jrose
parents:
30
diff
changeset
|
2477 HandleMark hm; |
|
c7c777385a15
6667042: PrintAssembly option does not work without special plugin
jrose
parents:
30
diff
changeset
|
2478 ResourceMark m; |
|
c7c777385a15
6667042: PrintAssembly option does not work without special plugin
jrose
parents:
30
diff
changeset
|
2479 Disassembler::decode(this); |
|
c7c777385a15
6667042: PrintAssembly option does not work without special plugin
jrose
parents:
30
diff
changeset
|
2480 } |
|
c7c777385a15
6667042: PrintAssembly option does not work without special plugin
jrose
parents:
30
diff
changeset
|
2481 |
|
c7c777385a15
6667042: PrintAssembly option does not work without special plugin
jrose
parents:
30
diff
changeset
|
2482 |
|
c7c777385a15
6667042: PrintAssembly option does not work without special plugin
jrose
parents:
30
diff
changeset
|
2483 #ifndef PRODUCT |
| 0 | 2484 |
| 2485 void nmethod::print_scopes() { | |
| 2486 // Find the first pc desc for all scopes in the code and print it. | |
| 2487 ResourceMark rm; | |
| 2488 for (PcDesc* p = scopes_pcs_begin(); p < scopes_pcs_end(); p++) { | |
| 2489 if (p->scope_decode_offset() == DebugInformationRecorder::serialized_null) | |
| 2490 continue; | |
| 2491 | |
| 2492 ScopeDesc* sd = scope_desc_at(p->real_pc(this)); | |
| 2493 sd->print_on(tty, p); | |
| 2494 } | |
| 2495 } | |
| 2496 | |
| 2497 void nmethod::print_dependencies() { | |
| 2498 ResourceMark rm; | |
| 2499 ttyLocker ttyl; // keep the following output all in one block | |
| 2500 tty->print_cr("Dependencies:"); | |
| 2501 for (Dependencies::DepStream deps(this); deps.next(); ) { | |
| 2502 deps.print_dependency(); | |
| 2503 klassOop ctxk = deps.context_type(); | |
| 2504 if (ctxk != NULL) { | |
| 2505 Klass* k = Klass::cast(ctxk); | |
| 2506 if (k->oop_is_instance() && ((instanceKlass*)k)->is_dependent_nmethod(this)) { | |
| 30 | 2507 tty->print_cr(" [nmethod<=klass]%s", k->external_name()); |
| 0 | 2508 } |
| 2509 } | |
| 2510 deps.log_dependency(); // put it into the xml log also | |
| 2511 } | |
| 2512 } | |
| 2513 | |
| 2514 | |
| 2515 void nmethod::print_relocations() { | |
| 2516 ResourceMark m; // in case methods get printed via the debugger | |
| 2517 tty->print_cr("relocations:"); | |
| 2518 RelocIterator iter(this); | |
| 2519 iter.print(); | |
| 2520 if (UseRelocIndex) { | |
| 2521 jint* index_end = (jint*)relocation_end() - 1; | |
| 2522 jint index_size = *index_end; | |
| 2523 jint* index_start = (jint*)( (address)index_end - index_size ); | |
| 2524 tty->print_cr(" index @" INTPTR_FORMAT ": index_size=%d", index_start, index_size); | |
| 2525 if (index_size > 0) { | |
| 2526 jint* ip; | |
| 2527 for (ip = index_start; ip+2 <= index_end; ip += 2) | |
| 2528 tty->print_cr(" (%d %d) addr=" INTPTR_FORMAT " @" INTPTR_FORMAT, | |
| 2529 ip[0], | |
| 2530 ip[1], | |
| 2531 header_end()+ip[0], | |
| 2532 relocation_begin()-1+ip[1]); | |
| 2533 for (; ip < index_end; ip++) | |
| 2534 tty->print_cr(" (%d ?)", ip[0]); | |
| 2535 tty->print_cr(" @" INTPTR_FORMAT ": index_size=%d", ip, *ip++); | |
| 2536 tty->print_cr("reloc_end @" INTPTR_FORMAT ":", ip); | |
| 2537 } | |
| 2538 } | |
| 2539 } | |
| 2540 | |
| 2541 | |
| 2542 void nmethod::print_pcs() { | |
| 2543 ResourceMark m; // in case methods get printed via debugger | |
| 2544 tty->print_cr("pc-bytecode offsets:"); | |
| 2545 for (PcDesc* p = scopes_pcs_begin(); p < scopes_pcs_end(); p++) { | |
| 2546 p->print(this); | |
| 2547 } | |
| 2548 } | |
| 2549 | |
|
100
c7c777385a15
6667042: PrintAssembly option does not work without special plugin
jrose
parents:
30
diff
changeset
|
2550 #endif // PRODUCT |
| 0 | 2551 |
| 2552 const char* nmethod::reloc_string_for(u_char* begin, u_char* end) { | |
| 2553 RelocIterator iter(this, begin, end); | |
| 2554 bool have_one = false; | |
| 2555 while (iter.next()) { | |
| 2556 have_one = true; | |
| 2557 switch (iter.type()) { | |
| 2558 case relocInfo::none: return "no_reloc"; | |
| 2559 case relocInfo::oop_type: { | |
| 2560 stringStream st; | |
| 2561 oop_Relocation* r = iter.oop_reloc(); | |
| 2562 oop obj = r->oop_value(); | |
| 2563 st.print("oop("); | |
| 2564 if (obj == NULL) st.print("NULL"); | |
| 2565 else obj->print_value_on(&st); | |
| 2566 st.print(")"); | |
| 2567 return st.as_string(); | |
| 2568 } | |
| 2569 case relocInfo::virtual_call_type: return "virtual_call"; | |
| 2570 case relocInfo::opt_virtual_call_type: return "optimized virtual_call"; | |
| 2571 case relocInfo::static_call_type: return "static_call"; | |
| 2572 case relocInfo::static_stub_type: return "static_stub"; | |
| 2573 case relocInfo::runtime_call_type: return "runtime_call"; | |
| 2574 case relocInfo::external_word_type: return "external_word"; | |
| 2575 case relocInfo::internal_word_type: return "internal_word"; | |
| 2576 case relocInfo::section_word_type: return "section_word"; | |
| 2577 case relocInfo::poll_type: return "poll"; | |
| 2578 case relocInfo::poll_return_type: return "poll_return"; | |
| 2579 case relocInfo::type_mask: return "type_bit_mask"; | |
| 2580 } | |
| 2581 } | |
| 2582 return have_one ? "other" : NULL; | |
| 2583 } | |
| 2584 | |
| 2585 // Return a the last scope in (begin..end] | |
| 2586 ScopeDesc* nmethod::scope_desc_in(address begin, address end) { | |
| 2587 PcDesc* p = pc_desc_near(begin+1); | |
| 2588 if (p != NULL && p->real_pc(this) <= end) { | |
| 2589 return new ScopeDesc(this, p->scope_decode_offset(), | |
|
3018
5857923e563c
Fixed an issue with frame states in exception dispatch chains (now we are correctly rethrowing the exception immediately at entering the interpreter).
Thomas Wuerthinger <thomas@wuerthinger.net>
parents:
2891
diff
changeset
|
2590 p->obj_decode_offset(), p->should_reexecute(), p->rethrow_exception(), |
|
1253
f70b0d9ab095
6910618: C2: Error: assert(d->is_oop(),"JVM_ArrayCopy: dst not an oop")
kvn
parents:
1250
diff
changeset
|
2591 p->return_oop()); |
| 0 | 2592 } |
| 2593 return NULL; | |
| 2594 } | |
| 2595 | |
|
1155
4e6abf09f540
6912062: disassembler plugin needs to produce symbolic information in product mode
jrose
parents:
1141
diff
changeset
|
2596 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
|
2597 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
|
2598 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
|
2599 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
|
2600 if (block_begin == stub_begin()) stream->print_cr("[Stub Code]"); |
| 1204 | 2601 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
|
2602 |
|
4a665be40fd3
6975855: don't emit deopt MH handler in C1 if not required
twisti
parents:
1644
diff
changeset
|
2603 if (has_method_handle_invokes()) |
|
4a665be40fd3
6975855: don't emit deopt MH handler in C1 if not required
twisti
parents:
1644
diff
changeset
|
2604 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
|
2605 |
|
1155
4e6abf09f540
6912062: disassembler plugin needs to produce symbolic information in product mode
jrose
parents:
1141
diff
changeset
|
2606 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
|
2607 |
|
1155
4e6abf09f540
6912062: disassembler plugin needs to produce symbolic information in product mode
jrose
parents:
1141
diff
changeset
|
2608 if (block_begin == entry_point()) { |
|
4e6abf09f540
6912062: disassembler plugin needs to produce symbolic information in product mode
jrose
parents:
1141
diff
changeset
|
2609 methodHandle m = method(); |
|
4e6abf09f540
6912062: disassembler plugin needs to produce symbolic information in product mode
jrose
parents:
1141
diff
changeset
|
2610 if (m.not_null()) { |
|
4e6abf09f540
6912062: disassembler plugin needs to produce symbolic information in product mode
jrose
parents:
1141
diff
changeset
|
2611 stream->print(" # "); |
|
4e6abf09f540
6912062: disassembler plugin needs to produce symbolic information in product mode
jrose
parents:
1141
diff
changeset
|
2612 m->print_value_on(stream); |
|
4e6abf09f540
6912062: disassembler plugin needs to produce symbolic information in product mode
jrose
parents:
1141
diff
changeset
|
2613 stream->cr(); |
|
4e6abf09f540
6912062: disassembler plugin needs to produce symbolic information in product mode
jrose
parents:
1141
diff
changeset
|
2614 } |
|
4e6abf09f540
6912062: disassembler plugin needs to produce symbolic information in product mode
jrose
parents:
1141
diff
changeset
|
2615 if (m.not_null() && !is_osr_method()) { |
|
4e6abf09f540
6912062: disassembler plugin needs to produce symbolic information in product mode
jrose
parents:
1141
diff
changeset
|
2616 ResourceMark rm; |
|
4e6abf09f540
6912062: disassembler plugin needs to produce symbolic information in product mode
jrose
parents:
1141
diff
changeset
|
2617 int sizeargs = m->size_of_parameters(); |
|
4e6abf09f540
6912062: disassembler plugin needs to produce symbolic information in product mode
jrose
parents:
1141
diff
changeset
|
2618 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
|
2619 VMRegPair* regs = NEW_RESOURCE_ARRAY(VMRegPair, sizeargs); |
|
4e6abf09f540
6912062: disassembler plugin needs to produce symbolic information in product mode
jrose
parents:
1141
diff
changeset
|
2620 { |
|
4e6abf09f540
6912062: disassembler plugin needs to produce symbolic information in product mode
jrose
parents:
1141
diff
changeset
|
2621 int sig_index = 0; |
|
4e6abf09f540
6912062: disassembler plugin needs to produce symbolic information in product mode
jrose
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1141
diff
changeset
|
2622 if (!m->is_static()) |
|
4e6abf09f540
6912062: disassembler plugin needs to produce symbolic information in product mode
jrose
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diff
changeset
|
2623 sig_bt[sig_index++] = T_OBJECT; // 'this' |
|
4e6abf09f540
6912062: disassembler plugin needs to produce symbolic information in product mode
jrose
parents:
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diff
changeset
|
2624 for (SignatureStream ss(m->signature()); !ss.at_return_type(); ss.next()) { |
|
4e6abf09f540
6912062: disassembler plugin needs to produce symbolic information in product mode
jrose
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diff
changeset
|
2625 BasicType t = ss.type(); |
|
4e6abf09f540
6912062: disassembler plugin needs to produce symbolic information in product mode
jrose
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diff
changeset
|
2626 sig_bt[sig_index++] = t; |
|
4e6abf09f540
6912062: disassembler plugin needs to produce symbolic information in product mode
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parents:
1141
diff
changeset
|
2627 if (type2size[t] == 2) { |
|
4e6abf09f540
6912062: disassembler plugin needs to produce symbolic information in product mode
jrose
parents:
1141
diff
changeset
|
2628 sig_bt[sig_index++] = T_VOID; |
|
4e6abf09f540
6912062: disassembler plugin needs to produce symbolic information in product mode
jrose
parents:
1141
diff
changeset
|
2629 } else { |
|
4e6abf09f540
6912062: disassembler plugin needs to produce symbolic information in product mode
jrose
parents:
1141
diff
changeset
|
2630 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
|
2631 } |
|
4e6abf09f540
6912062: disassembler plugin needs to produce symbolic information in product mode
jrose
parents:
1141
diff
changeset
|
2632 } |
|
4e6abf09f540
6912062: disassembler plugin needs to produce symbolic information in product mode
jrose
parents:
1141
diff
changeset
|
2633 assert(sig_index == sizeargs, ""); |
|
4e6abf09f540
6912062: disassembler plugin needs to produce symbolic information in product mode
jrose
parents:
1141
diff
changeset
|
2634 } |
|
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6912062: disassembler plugin needs to produce symbolic information in product mode
jrose
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diff
changeset
|
2635 const char* spname = "sp"; // make arch-specific? |
|
4e6abf09f540
6912062: disassembler plugin needs to produce symbolic information in product mode
jrose
parents:
1141
diff
changeset
|
2636 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
|
2637 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
|
2638 int tab1 = 14, tab2 = 24; |
|
4e6abf09f540
6912062: disassembler plugin needs to produce symbolic information in product mode
jrose
parents:
1141
diff
changeset
|
2639 int sig_index = 0; |
|
4e6abf09f540
6912062: disassembler plugin needs to produce symbolic information in product mode
jrose
parents:
1141
diff
changeset
|
2640 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
|
2641 bool did_old_sp = false; |
|
4e6abf09f540
6912062: disassembler plugin needs to produce symbolic information in product mode
jrose
parents:
1141
diff
changeset
|
2642 for (SignatureStream ss(m->signature()); !ss.at_return_type(); ) { |
|
4e6abf09f540
6912062: disassembler plugin needs to produce symbolic information in product mode
jrose
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1141
diff
changeset
|
2643 bool at_this = (arg_index == -1); |
|
4e6abf09f540
6912062: disassembler plugin needs to produce symbolic information in product mode
jrose
parents:
1141
diff
changeset
|
2644 bool at_old_sp = false; |
|
4e6abf09f540
6912062: disassembler plugin needs to produce symbolic information in product mode
jrose
parents:
1141
diff
changeset
|
2645 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
|
2646 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
|
2647 if (at_this) |
|
4e6abf09f540
6912062: disassembler plugin needs to produce symbolic information in product mode
jrose
parents:
1141
diff
changeset
|
2648 stream->print(" # this: "); |
|
4e6abf09f540
6912062: disassembler plugin needs to produce symbolic information in product mode
jrose
parents:
1141
diff
changeset
|
2649 else |
|
4e6abf09f540
6912062: disassembler plugin needs to produce symbolic information in product mode
jrose
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diff
changeset
|
2650 stream->print(" # parm%d: ", arg_index); |
|
4e6abf09f540
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jrose
parents:
1141
diff
changeset
|
2651 stream->move_to(tab1); |
|
4e6abf09f540
6912062: disassembler plugin needs to produce symbolic information in product mode
jrose
parents:
1141
diff
changeset
|
2652 VMReg fst = regs[sig_index].first(); |
|
4e6abf09f540
6912062: disassembler plugin needs to produce symbolic information in product mode
jrose
parents:
1141
diff
changeset
|
2653 VMReg snd = regs[sig_index].second(); |
|
4e6abf09f540
6912062: disassembler plugin needs to produce symbolic information in product mode
jrose
parents:
1141
diff
changeset
|
2654 if (fst->is_reg()) { |
|
4e6abf09f540
6912062: disassembler plugin needs to produce symbolic information in product mode
jrose
parents:
1141
diff
changeset
|
2655 stream->print("%s", fst->name()); |
|
4e6abf09f540
6912062: disassembler plugin needs to produce symbolic information in product mode
jrose
parents:
1141
diff
changeset
|
2656 if (snd->is_valid()) { |
|
4e6abf09f540
6912062: disassembler plugin needs to produce symbolic information in product mode
jrose
parents:
1141
diff
changeset
|
2657 stream->print(":%s", snd->name()); |
|
4e6abf09f540
6912062: disassembler plugin needs to produce symbolic information in product mode
jrose
parents:
1141
diff
changeset
|
2658 } |
|
4e6abf09f540
6912062: disassembler plugin needs to produce symbolic information in product mode
jrose
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1141
diff
changeset
|
2659 } else if (fst->is_stack()) { |
|
4e6abf09f540
6912062: disassembler plugin needs to produce symbolic information in product mode
jrose
parents:
1141
diff
changeset
|
2660 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
|
2661 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
|
2662 stream->print("[%s+0x%x]", spname, offset); |
|
4e6abf09f540
6912062: disassembler plugin needs to produce symbolic information in product mode
jrose
parents:
1141
diff
changeset
|
2663 } else { |
|
4e6abf09f540
6912062: disassembler plugin needs to produce symbolic information in product mode
jrose
parents:
1141
diff
changeset
|
2664 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
|
2665 } |
|
4e6abf09f540
6912062: disassembler plugin needs to produce symbolic information in product mode
jrose
parents:
1141
diff
changeset
|
2666 stream->print(" "); |
|
4e6abf09f540
6912062: disassembler plugin needs to produce symbolic information in product mode
jrose
parents:
1141
diff
changeset
|
2667 stream->move_to(tab2); |
|
4e6abf09f540
6912062: disassembler plugin needs to produce symbolic information in product mode
jrose
parents:
1141
diff
changeset
|
2668 stream->print("= "); |
|
4e6abf09f540
6912062: disassembler plugin needs to produce symbolic information in product mode
jrose
parents:
1141
diff
changeset
|
2669 if (at_this) { |
|
4e6abf09f540
6912062: disassembler plugin needs to produce symbolic information in product mode
jrose
parents:
1141
diff
changeset
|
2670 m->method_holder()->print_value_on(stream); |
|
4e6abf09f540
6912062: disassembler plugin needs to produce symbolic information in product mode
jrose
parents:
1141
diff
changeset
|
2671 } else { |
|
4e6abf09f540
6912062: disassembler plugin needs to produce symbolic information in product mode
jrose
parents:
1141
diff
changeset
|
2672 bool did_name = false; |
|
4e6abf09f540
6912062: disassembler plugin needs to produce symbolic information in product mode
jrose
parents:
1141
diff
changeset
|
2673 if (!at_this && ss.is_object()) { |
|
2177
3582bf76420e
6990754: Use native memory and reference counting to implement SymbolTable
coleenp
parents:
2142
diff
changeset
|
2674 Symbol* name = ss.as_symbol_or_null(); |
|
1155
4e6abf09f540
6912062: disassembler plugin needs to produce symbolic information in product mode
jrose
parents:
1141
diff
changeset
|
2675 if (name != NULL) { |
|
4e6abf09f540
6912062: disassembler plugin needs to produce symbolic information in product mode
jrose
parents:
1141
diff
changeset
|
2676 name->print_value_on(stream); |
|
4e6abf09f540
6912062: disassembler plugin needs to produce symbolic information in product mode
jrose
parents:
1141
diff
changeset
|
2677 did_name = true; |
|
4e6abf09f540
6912062: disassembler plugin needs to produce symbolic information in product mode
jrose
parents:
1141
diff
changeset
|
2678 } |
|
4e6abf09f540
6912062: disassembler plugin needs to produce symbolic information in product mode
jrose
parents:
1141
diff
changeset
|
2679 } |
|
4e6abf09f540
6912062: disassembler plugin needs to produce symbolic information in product mode
jrose
parents:
1141
diff
changeset
|
2680 if (!did_name) |
|
4e6abf09f540
6912062: disassembler plugin needs to produce symbolic information in product mode
jrose
parents:
1141
diff
changeset
|
2681 stream->print("%s", type2name(t)); |
|
4e6abf09f540
6912062: disassembler plugin needs to produce symbolic information in product mode
jrose
parents:
1141
diff
changeset
|
2682 } |
|
4e6abf09f540
6912062: disassembler plugin needs to produce symbolic information in product mode
jrose
parents:
1141
diff
changeset
|
2683 if (at_old_sp) { |
|
4e6abf09f540
6912062: disassembler plugin needs to produce symbolic information in product mode
jrose
parents:
1141
diff
changeset
|
2684 stream->print(" (%s of caller)", spname); |
|
4e6abf09f540
6912062: disassembler plugin needs to produce symbolic information in product mode
jrose
parents:
1141
diff
changeset
|
2685 did_old_sp = true; |
|
4e6abf09f540
6912062: disassembler plugin needs to produce symbolic information in product mode
jrose
parents:
1141
diff
changeset
|
2686 } |
|
4e6abf09f540
6912062: disassembler plugin needs to produce symbolic information in product mode
jrose
parents:
1141
diff
changeset
|
2687 stream->cr(); |
|
4e6abf09f540
6912062: disassembler plugin needs to produce symbolic information in product mode
jrose
parents:
1141
diff
changeset
|
2688 sig_index += type2size[t]; |
|
4e6abf09f540
6912062: disassembler plugin needs to produce symbolic information in product mode
jrose
parents:
1141
diff
changeset
|
2689 arg_index += 1; |
|
4e6abf09f540
6912062: disassembler plugin needs to produce symbolic information in product mode
jrose
parents:
1141
diff
changeset
|
2690 if (!at_this) ss.next(); |
|
4e6abf09f540
6912062: disassembler plugin needs to produce symbolic information in product mode
jrose
parents:
1141
diff
changeset
|
2691 } |
|
4e6abf09f540
6912062: disassembler plugin needs to produce symbolic information in product mode
jrose
parents:
1141
diff
changeset
|
2692 if (!did_old_sp) { |
|
4e6abf09f540
6912062: disassembler plugin needs to produce symbolic information in product mode
jrose
parents:
1141
diff
changeset
|
2693 stream->print(" # "); |
|
4e6abf09f540
6912062: disassembler plugin needs to produce symbolic information in product mode
jrose
parents:
1141
diff
changeset
|
2694 stream->move_to(tab1); |
|
4e6abf09f540
6912062: disassembler plugin needs to produce symbolic information in product mode
jrose
parents:
1141
diff
changeset
|
2695 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
|
2696 stream->print(" (%s of caller)", spname); |
|
4e6abf09f540
6912062: disassembler plugin needs to produce symbolic information in product mode
jrose
parents:
1141
diff
changeset
|
2697 stream->cr(); |
|
4e6abf09f540
6912062: disassembler plugin needs to produce symbolic information in product mode
jrose
parents:
1141
diff
changeset
|
2698 } |
|
4e6abf09f540
6912062: disassembler plugin needs to produce symbolic information in product mode
jrose
parents:
1141
diff
changeset
|
2699 } |
|
4e6abf09f540
6912062: disassembler plugin needs to produce symbolic information in product mode
jrose
parents:
1141
diff
changeset
|
2700 } |
|
4e6abf09f540
6912062: disassembler plugin needs to produce symbolic information in product mode
jrose
parents:
1141
diff
changeset
|
2701 } |
|
4e6abf09f540
6912062: disassembler plugin needs to produce symbolic information in product mode
jrose
parents:
1141
diff
changeset
|
2702 |
| 0 | 2703 void nmethod::print_code_comment_on(outputStream* st, int column, u_char* begin, u_char* end) { |
| 2704 // First, find an oopmap in (begin, end]. | |
| 2705 // We use the odd half-closed interval so that oop maps and scope descs | |
| 2706 // which are tied to the byte after a call are printed with the call itself. | |
| 1748 | 2707 address base = code_begin(); |
| 0 | 2708 OopMapSet* oms = oop_maps(); |
| 2709 if (oms != NULL) { | |
| 2710 for (int i = 0, imax = oms->size(); i < imax; i++) { | |
| 2711 OopMap* om = oms->at(i); | |
| 2712 address pc = base + om->offset(); | |
| 2713 if (pc > begin) { | |
| 2714 if (pc <= end) { | |
|
100
c7c777385a15
6667042: PrintAssembly option does not work without special plugin
jrose
parents:
30
diff
changeset
|
2715 st->move_to(column); |
|
c7c777385a15
6667042: PrintAssembly option does not work without special plugin
jrose
parents:
30
diff
changeset
|
2716 st->print("; "); |
|
c7c777385a15
6667042: PrintAssembly option does not work without special plugin
jrose
parents:
30
diff
changeset
|
2717 om->print_on(st); |
| 0 | 2718 } |
| 2719 break; | |
| 2720 } | |
| 2721 } | |
| 2722 } | |
|
100
c7c777385a15
6667042: PrintAssembly option does not work without special plugin
jrose
parents:
30
diff
changeset
|
2723 |
|
c7c777385a15
6667042: PrintAssembly option does not work without special plugin
jrose
parents:
30
diff
changeset
|
2724 // Print any debug info present at this pc. |
| 0 | 2725 ScopeDesc* sd = scope_desc_in(begin, end); |
| 2726 if (sd != NULL) { | |
|
100
c7c777385a15
6667042: PrintAssembly option does not work without special plugin
jrose
parents:
30
diff
changeset
|
2727 st->move_to(column); |
| 0 | 2728 if (sd->bci() == SynchronizationEntryBCI) { |
| 2729 st->print(";*synchronization entry"); | |
| 2730 } else { | |
| 2731 if (sd->method().is_null()) { | |
|
100
c7c777385a15
6667042: PrintAssembly option does not work without special plugin
jrose
parents:
30
diff
changeset
|
2732 st->print("method is NULL"); |
| 0 | 2733 } else if (sd->method()->is_native()) { |
|
100
c7c777385a15
6667042: PrintAssembly option does not work without special plugin
jrose
parents:
30
diff
changeset
|
2734 st->print("method is native"); |
| 0 | 2735 } else { |
| 2142 | 2736 Bytecodes::Code bc = sd->method()->java_code_at(sd->bci()); |
| 0 | 2737 st->print(";*%s", Bytecodes::name(bc)); |
| 2738 switch (bc) { | |
| 2739 case Bytecodes::_invokevirtual: | |
| 2740 case Bytecodes::_invokespecial: | |
| 2741 case Bytecodes::_invokestatic: | |
| 2742 case Bytecodes::_invokeinterface: | |
| 2743 { | |
| 2142 | 2744 Bytecode_invoke invoke(sd->method(), sd->bci()); |
| 0 | 2745 st->print(" "); |
| 2142 | 2746 if (invoke.name() != NULL) |
| 2747 invoke.name()->print_symbol_on(st); | |
| 0 | 2748 else |
| 2749 st->print("<UNKNOWN>"); | |
| 2750 break; | |
| 2751 } | |
| 2752 case Bytecodes::_getfield: | |
| 2753 case Bytecodes::_putfield: | |
| 2754 case Bytecodes::_getstatic: | |
| 2755 case Bytecodes::_putstatic: | |
| 2756 { | |
| 2142 | 2757 Bytecode_field field(sd->method(), sd->bci()); |
| 0 | 2758 st->print(" "); |
| 2142 | 2759 if (field.name() != NULL) |
| 2760 field.name()->print_symbol_on(st); | |
| 0 | 2761 else |
| 2762 st->print("<UNKNOWN>"); | |
| 2763 } | |
| 2764 } | |
| 2765 } | |
| 2766 } | |
|
100
c7c777385a15
6667042: PrintAssembly option does not work without special plugin
jrose
parents:
30
diff
changeset
|
2767 |
| 0 | 2768 // Print all scopes |
| 2769 for (;sd != NULL; sd = sd->sender()) { | |
|
100
c7c777385a15
6667042: PrintAssembly option does not work without special plugin
jrose
parents:
30
diff
changeset
|
2770 st->move_to(column); |
| 0 | 2771 st->print("; -"); |
| 2772 if (sd->method().is_null()) { | |
|
100
c7c777385a15
6667042: PrintAssembly option does not work without special plugin
jrose
parents:
30
diff
changeset
|
2773 st->print("method is NULL"); |
| 0 | 2774 } else { |
| 2775 sd->method()->print_short_name(st); | |
| 2776 } | |
| 2777 int lineno = sd->method()->line_number_from_bci(sd->bci()); | |
| 2778 if (lineno != -1) { | |
| 2779 st->print("@%d (line %d)", sd->bci(), lineno); | |
| 2780 } else { | |
| 2781 st->print("@%d", sd->bci()); | |
| 2782 } | |
| 2783 st->cr(); | |
| 2784 } | |
| 2785 } | |
| 2786 | |
| 2787 // Print relocation information | |
| 2788 const char* str = reloc_string_for(begin, end); | |
| 2789 if (str != NULL) { | |
| 2790 if (sd != NULL) st->cr(); | |
|
100
c7c777385a15
6667042: PrintAssembly option does not work without special plugin
jrose
parents:
30
diff
changeset
|
2791 st->move_to(column); |
| 0 | 2792 st->print("; {%s}", str); |
| 2793 } | |
| 1748 | 2794 int cont_offset = ImplicitExceptionTable(this).at(begin - code_begin()); |
| 0 | 2795 if (cont_offset != 0) { |
|
100
c7c777385a15
6667042: PrintAssembly option does not work without special plugin
jrose
parents:
30
diff
changeset
|
2796 st->move_to(column); |
| 1748 | 2797 st->print("; implicit exception: dispatches to " INTPTR_FORMAT, code_begin() + cont_offset); |
| 0 | 2798 } |
| 2799 | |
| 2800 } | |
| 2801 | |
|
100
c7c777385a15
6667042: PrintAssembly option does not work without special plugin
jrose
parents:
30
diff
changeset
|
2802 #ifndef PRODUCT |
|
c7c777385a15
6667042: PrintAssembly option does not work without special plugin
jrose
parents:
30
diff
changeset
|
2803 |
| 0 | 2804 void nmethod::print_value_on(outputStream* st) const { |
|
2405
3d58a4983660
7022998: JSR 292 recursive method handle calls inline themselves infinitely
twisti
parents:
2376
diff
changeset
|
2805 st->print("nmethod"); |
|
3d58a4983660
7022998: JSR 292 recursive method handle calls inline themselves infinitely
twisti
parents:
2376
diff
changeset
|
2806 print_on(st, NULL); |
| 0 | 2807 } |
| 2808 | |
| 2809 void nmethod::print_calls(outputStream* st) { | |
| 2810 RelocIterator iter(this); | |
| 2811 while (iter.next()) { | |
| 2812 switch (iter.type()) { | |
| 2813 case relocInfo::virtual_call_type: | |
| 2814 case relocInfo::opt_virtual_call_type: { | |
| 2815 VerifyMutexLocker mc(CompiledIC_lock); | |
| 2816 CompiledIC_at(iter.reloc())->print(); | |
| 2817 break; | |
| 2818 } | |
| 2819 case relocInfo::static_call_type: | |
| 2820 st->print_cr("Static call at " INTPTR_FORMAT, iter.reloc()->addr()); | |
| 2821 compiledStaticCall_at(iter.reloc())->print(); | |
| 2822 break; | |
| 2823 } | |
| 2824 } | |
| 2825 } | |
| 2826 | |
| 2827 void nmethod::print_handler_table() { | |
| 2828 ExceptionHandlerTable(this).print(); | |
| 2829 } | |
| 2830 | |
| 2831 void nmethod::print_nul_chk_table() { | |
| 1748 | 2832 ImplicitExceptionTable(this).print(code_begin()); |
| 0 | 2833 } |
| 2834 | |
| 2835 void nmethod::print_statistics() { | |
| 2836 ttyLocker ttyl; | |
| 2837 if (xtty != NULL) xtty->head("statistics type='nmethod'"); | |
| 2838 nmethod_stats.print_native_nmethod_stats(); | |
| 2839 nmethod_stats.print_nmethod_stats(); | |
| 2840 DebugInformationRecorder::print_statistics(); | |
| 2841 nmethod_stats.print_pc_stats(); | |
| 2842 Dependencies::print_statistics(); | |
| 2843 if (xtty != NULL) xtty->tail("statistics"); | |
| 2844 } | |
| 2845 | |
| 2846 #endif // PRODUCT |