Mercurial > hg > truffle
annotate src/share/vm/code/nmethod.cpp @ 3683:345c3bbf9c3c
store RiCompiledMethod in nmethod and:
* invalidate RiCompiledMethod when the nmethod is invalidated
* invalidate the nmethod when the RiCompiledMethod object is GC'ed
| author | Lukas Stadler <lukas.stadler@jku.at> |
|---|---|
| date | Fri, 18 Nov 2011 11:54:07 +0100 |
| parents | be4ca325525a |
| children | 04b9a2566eec |
| 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" | |
| 28 #include "code/nmethod.hpp" | |
| 29 #include "code/scopeDesc.hpp" | |
| 30 #include "compiler/abstractCompiler.hpp" | |
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31 #include "compiler/compileBroker.hpp" |
| 1972 | 32 #include "compiler/compileLog.hpp" |
| 33 #include "compiler/compilerOracle.hpp" | |
| 34 #include "compiler/disassembler.hpp" | |
| 35 #include "interpreter/bytecode.hpp" | |
| 36 #include "oops/methodDataOop.hpp" | |
| 37 #include "prims/jvmtiRedefineClassesTrace.hpp" | |
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38 #include "prims/jvmtiImpl.hpp" |
| 1972 | 39 #include "runtime/sharedRuntime.hpp" |
| 40 #include "runtime/sweeper.hpp" | |
| 41 #include "utilities/dtrace.hpp" | |
| 42 #include "utilities/events.hpp" | |
| 43 #include "utilities/xmlstream.hpp" | |
| 44 #ifdef SHARK | |
| 45 #include "shark/sharkCompiler.hpp" | |
| 46 #endif | |
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47 #ifdef GRAAL |
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48 #include "graal/graalJavaAccess.hpp" |
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49 #endif |
| 0 | 50 |
| 51 #ifdef DTRACE_ENABLED | |
| 52 | |
| 53 // Only bother with this argument setup if dtrace is available | |
| 54 | |
| 55 HS_DTRACE_PROBE_DECL8(hotspot, compiled__method__load, | |
| 56 const char*, int, const char*, int, const char*, int, void*, size_t); | |
| 57 | |
| 58 HS_DTRACE_PROBE_DECL6(hotspot, compiled__method__unload, | |
| 59 char*, int, char*, int, char*, int); | |
| 60 | |
| 61 #define DTRACE_METHOD_UNLOAD_PROBE(method) \ | |
| 62 { \ | |
| 63 methodOop m = (method); \ | |
| 64 if (m != NULL) { \ | |
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65 Symbol* klass_name = m->klass_name(); \ |
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66 Symbol* name = m->name(); \ |
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67 Symbol* signature = m->signature(); \ |
| 0 | 68 HS_DTRACE_PROBE6(hotspot, compiled__method__unload, \ |
| 69 klass_name->bytes(), klass_name->utf8_length(), \ | |
| 70 name->bytes(), name->utf8_length(), \ | |
| 71 signature->bytes(), signature->utf8_length()); \ | |
| 72 } \ | |
| 73 } | |
| 74 | |
| 75 #else // ndef DTRACE_ENABLED | |
| 76 | |
| 77 #define DTRACE_METHOD_UNLOAD_PROBE(method) | |
| 78 | |
| 79 #endif | |
| 80 | |
| 81 bool nmethod::is_compiled_by_c1() const { | |
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82 if (compiler() == NULL || method() == NULL) return false; // can happen during debug printing |
| 0 | 83 if (is_native_method()) return false; |
| 84 return compiler()->is_c1(); | |
| 85 } | |
| 86 bool nmethod::is_compiled_by_c2() const { | |
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87 if (compiler() == NULL || method() == NULL) return false; // can happen during debug printing |
| 0 | 88 if (is_native_method()) return false; |
| 89 return compiler()->is_c2(); | |
| 90 } | |
| 1692 | 91 bool nmethod::is_compiled_by_shark() const { |
| 92 if (is_native_method()) return false; | |
| 93 assert(compiler() != NULL, "must be"); | |
| 94 return compiler()->is_shark(); | |
| 95 } | |
| 0 | 96 |
| 97 | |
| 98 | |
| 99 //--------------------------------------------------------------------------------- | |
| 100 // NMethod statistics | |
| 101 // They are printed under various flags, including: | |
| 102 // PrintC1Statistics, PrintOptoStatistics, LogVMOutput, and LogCompilation. | |
| 103 // (In the latter two cases, they like other stats are printed to the log only.) | |
| 104 | |
| 105 #ifndef PRODUCT | |
| 106 // These variables are put into one block to reduce relocations | |
| 107 // and make it simpler to print from the debugger. | |
| 108 static | |
| 109 struct nmethod_stats_struct { | |
| 110 int nmethod_count; | |
| 111 int total_size; | |
| 112 int relocation_size; | |
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113 int consts_size; |
| 1748 | 114 int insts_size; |
| 0 | 115 int stub_size; |
| 116 int scopes_data_size; | |
| 117 int scopes_pcs_size; | |
| 118 int dependencies_size; | |
| 119 int handler_table_size; | |
| 120 int nul_chk_table_size; | |
| 121 int oops_size; | |
| 122 | |
| 123 void note_nmethod(nmethod* nm) { | |
| 124 nmethod_count += 1; | |
| 125 total_size += nm->size(); | |
| 126 relocation_size += nm->relocation_size(); | |
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127 consts_size += nm->consts_size(); |
| 1748 | 128 insts_size += nm->insts_size(); |
| 0 | 129 stub_size += nm->stub_size(); |
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130 oops_size += nm->oops_size(); |
| 0 | 131 scopes_data_size += nm->scopes_data_size(); |
| 132 scopes_pcs_size += nm->scopes_pcs_size(); | |
| 133 dependencies_size += nm->dependencies_size(); | |
| 134 handler_table_size += nm->handler_table_size(); | |
| 135 nul_chk_table_size += nm->nul_chk_table_size(); | |
| 136 } | |
| 137 void print_nmethod_stats() { | |
| 138 if (nmethod_count == 0) return; | |
| 139 tty->print_cr("Statistics for %d bytecoded nmethods:", nmethod_count); | |
| 140 if (total_size != 0) tty->print_cr(" total in heap = %d", total_size); | |
| 141 if (relocation_size != 0) tty->print_cr(" relocation = %d", relocation_size); | |
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142 if (consts_size != 0) tty->print_cr(" constants = %d", consts_size); |
| 1748 | 143 if (insts_size != 0) tty->print_cr(" main code = %d", insts_size); |
| 0 | 144 if (stub_size != 0) tty->print_cr(" stub code = %d", stub_size); |
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145 if (oops_size != 0) tty->print_cr(" oops = %d", oops_size); |
| 0 | 146 if (scopes_data_size != 0) tty->print_cr(" scopes data = %d", scopes_data_size); |
| 147 if (scopes_pcs_size != 0) tty->print_cr(" scopes pcs = %d", scopes_pcs_size); | |
| 148 if (dependencies_size != 0) tty->print_cr(" dependencies = %d", dependencies_size); | |
| 149 if (handler_table_size != 0) tty->print_cr(" handler table = %d", handler_table_size); | |
| 150 if (nul_chk_table_size != 0) tty->print_cr(" nul chk table = %d", nul_chk_table_size); | |
| 151 } | |
| 152 | |
| 153 int native_nmethod_count; | |
| 154 int native_total_size; | |
| 155 int native_relocation_size; | |
| 1748 | 156 int native_insts_size; |
| 0 | 157 int native_oops_size; |
| 158 void note_native_nmethod(nmethod* nm) { | |
| 159 native_nmethod_count += 1; | |
| 160 native_total_size += nm->size(); | |
| 161 native_relocation_size += nm->relocation_size(); | |
| 1748 | 162 native_insts_size += nm->insts_size(); |
| 0 | 163 native_oops_size += nm->oops_size(); |
| 164 } | |
| 165 void print_native_nmethod_stats() { | |
| 166 if (native_nmethod_count == 0) return; | |
| 167 tty->print_cr("Statistics for %d native nmethods:", native_nmethod_count); | |
| 168 if (native_total_size != 0) tty->print_cr(" N. total size = %d", native_total_size); | |
| 169 if (native_relocation_size != 0) tty->print_cr(" N. relocation = %d", native_relocation_size); | |
| 1748 | 170 if (native_insts_size != 0) tty->print_cr(" N. main code = %d", native_insts_size); |
| 0 | 171 if (native_oops_size != 0) tty->print_cr(" N. oops = %d", native_oops_size); |
| 172 } | |
| 173 | |
| 174 int pc_desc_resets; // number of resets (= number of caches) | |
| 175 int pc_desc_queries; // queries to nmethod::find_pc_desc | |
| 176 int pc_desc_approx; // number of those which have approximate true | |
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177 int pc_desc_repeats; // number of _pc_descs[0] hits |
| 0 | 178 int pc_desc_hits; // number of LRU cache hits |
| 179 int pc_desc_tests; // total number of PcDesc examinations | |
| 180 int pc_desc_searches; // total number of quasi-binary search steps | |
| 181 int pc_desc_adds; // number of LUR cache insertions | |
| 182 | |
| 183 void print_pc_stats() { | |
| 184 tty->print_cr("PcDesc Statistics: %d queries, %.2f comparisons per query", | |
| 185 pc_desc_queries, | |
| 186 (double)(pc_desc_tests + pc_desc_searches) | |
| 187 / pc_desc_queries); | |
| 188 tty->print_cr(" caches=%d queries=%d/%d, hits=%d+%d, tests=%d+%d, adds=%d", | |
| 189 pc_desc_resets, | |
| 190 pc_desc_queries, pc_desc_approx, | |
| 191 pc_desc_repeats, pc_desc_hits, | |
| 192 pc_desc_tests, pc_desc_searches, pc_desc_adds); | |
| 193 } | |
| 194 } nmethod_stats; | |
| 195 #endif //PRODUCT | |
| 196 | |
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197 |
| 0 | 198 //--------------------------------------------------------------------------------- |
| 199 | |
| 200 | |
| 201 ExceptionCache::ExceptionCache(Handle exception, address pc, address handler) { | |
| 202 assert(pc != NULL, "Must be non null"); | |
| 203 assert(exception.not_null(), "Must be non null"); | |
| 204 assert(handler != NULL, "Must be non null"); | |
| 205 | |
| 206 _count = 0; | |
| 207 _exception_type = exception->klass(); | |
| 208 _next = NULL; | |
| 209 | |
| 210 add_address_and_handler(pc,handler); | |
| 211 } | |
| 212 | |
| 213 | |
| 214 address ExceptionCache::match(Handle exception, address pc) { | |
| 215 assert(pc != NULL,"Must be non null"); | |
| 216 assert(exception.not_null(),"Must be non null"); | |
| 217 if (exception->klass() == exception_type()) { | |
| 218 return (test_address(pc)); | |
| 219 } | |
| 220 | |
| 221 return NULL; | |
| 222 } | |
| 223 | |
| 224 | |
| 225 bool ExceptionCache::match_exception_with_space(Handle exception) { | |
| 226 assert(exception.not_null(),"Must be non null"); | |
| 227 if (exception->klass() == exception_type() && count() < cache_size) { | |
| 228 return true; | |
| 229 } | |
| 230 return false; | |
| 231 } | |
| 232 | |
| 233 | |
| 234 address ExceptionCache::test_address(address addr) { | |
| 235 for (int i=0; i<count(); i++) { | |
| 236 if (pc_at(i) == addr) { | |
| 237 return handler_at(i); | |
| 238 } | |
| 239 } | |
| 240 return NULL; | |
| 241 } | |
| 242 | |
| 243 | |
| 244 bool ExceptionCache::add_address_and_handler(address addr, address handler) { | |
| 245 if (test_address(addr) == handler) return true; | |
| 246 if (count() < cache_size) { | |
| 247 set_pc_at(count(),addr); | |
| 248 set_handler_at(count(), handler); | |
| 249 increment_count(); | |
| 250 return true; | |
| 251 } | |
| 252 return false; | |
| 253 } | |
| 254 | |
| 255 | |
| 256 // private method for handling exception cache | |
| 257 // These methods are private, and used to manipulate the exception cache | |
| 258 // directly. | |
| 259 ExceptionCache* nmethod::exception_cache_entry_for_exception(Handle exception) { | |
| 260 ExceptionCache* ec = exception_cache(); | |
| 261 while (ec != NULL) { | |
| 262 if (ec->match_exception_with_space(exception)) { | |
| 263 return ec; | |
| 264 } | |
| 265 ec = ec->next(); | |
| 266 } | |
| 267 return NULL; | |
| 268 } | |
| 269 | |
| 270 | |
| 271 //----------------------------------------------------------------------------- | |
| 272 | |
| 273 | |
| 274 // Helper used by both find_pc_desc methods. | |
| 275 static inline bool match_desc(PcDesc* pc, int pc_offset, bool approximate) { | |
| 276 NOT_PRODUCT(++nmethod_stats.pc_desc_tests); | |
| 277 if (!approximate) | |
| 278 return pc->pc_offset() == pc_offset; | |
| 279 else | |
| 280 return (pc-1)->pc_offset() < pc_offset && pc_offset <= pc->pc_offset(); | |
| 281 } | |
| 282 | |
| 283 void PcDescCache::reset_to(PcDesc* initial_pc_desc) { | |
| 284 if (initial_pc_desc == NULL) { | |
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285 _pc_descs[0] = NULL; // native method; no PcDescs at all |
| 0 | 286 return; |
| 287 } | |
| 288 NOT_PRODUCT(++nmethod_stats.pc_desc_resets); | |
| 289 // reset the cache by filling it with benign (non-null) values | |
| 290 assert(initial_pc_desc->pc_offset() < 0, "must be sentinel"); | |
| 291 for (int i = 0; i < cache_size; i++) | |
| 292 _pc_descs[i] = initial_pc_desc; | |
| 293 } | |
| 294 | |
| 295 PcDesc* PcDescCache::find_pc_desc(int pc_offset, bool approximate) { | |
| 296 NOT_PRODUCT(++nmethod_stats.pc_desc_queries); | |
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297 NOT_PRODUCT(if (approximate) ++nmethod_stats.pc_desc_approx); |
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298 |
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299 // Note: one might think that caching the most recently |
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300 // read value separately would be a win, but one would be |
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301 // wrong. When many threads are updating it, the cache |
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302 // line it's in would bounce between caches, negating |
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303 // any benefit. |
| 0 | 304 |
| 305 // In order to prevent race conditions do not load cache elements | |
| 306 // repeatedly, but use a local copy: | |
| 307 PcDesc* res; | |
| 308 | |
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309 // Step one: Check the most recently added value. |
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310 res = _pc_descs[0]; |
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311 if (res == NULL) return NULL; // native method; no PcDescs at all |
| 0 | 312 if (match_desc(res, pc_offset, approximate)) { |
| 313 NOT_PRODUCT(++nmethod_stats.pc_desc_repeats); | |
| 314 return res; | |
| 315 } | |
| 316 | |
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317 // Step two: Check the rest of the LRU cache. |
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318 for (int i = 1; i < cache_size; ++i) { |
| 0 | 319 res = _pc_descs[i]; |
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320 if (res->pc_offset() < 0) break; // optimization: skip empty cache |
| 0 | 321 if (match_desc(res, pc_offset, approximate)) { |
| 322 NOT_PRODUCT(++nmethod_stats.pc_desc_hits); | |
| 323 return res; | |
| 324 } | |
| 325 } | |
| 326 | |
| 327 // Report failure. | |
| 328 return NULL; | |
| 329 } | |
| 330 | |
| 331 void PcDescCache::add_pc_desc(PcDesc* pc_desc) { | |
| 332 NOT_PRODUCT(++nmethod_stats.pc_desc_adds); | |
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333 // Update the LRU cache by shifting pc_desc forward. |
| 0 | 334 for (int i = 0; i < cache_size; i++) { |
| 335 PcDesc* next = _pc_descs[i]; | |
| 336 _pc_descs[i] = pc_desc; | |
| 337 pc_desc = next; | |
| 338 } | |
| 339 } | |
| 340 | |
| 341 // adjust pcs_size so that it is a multiple of both oopSize and | |
| 342 // sizeof(PcDesc) (assumes that if sizeof(PcDesc) is not a multiple | |
| 343 // of oopSize, then 2*sizeof(PcDesc) is) | |
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344 static int adjust_pcs_size(int pcs_size) { |
| 0 | 345 int nsize = round_to(pcs_size, oopSize); |
| 346 if ((nsize % sizeof(PcDesc)) != 0) { | |
| 347 nsize = pcs_size + sizeof(PcDesc); | |
| 348 } | |
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349 assert((nsize % oopSize) == 0, "correct alignment"); |
| 0 | 350 return nsize; |
| 351 } | |
| 352 | |
| 353 //----------------------------------------------------------------------------- | |
| 354 | |
| 355 | |
| 356 void nmethod::add_exception_cache_entry(ExceptionCache* new_entry) { | |
| 357 assert(ExceptionCache_lock->owned_by_self(),"Must hold the ExceptionCache_lock"); | |
| 358 assert(new_entry != NULL,"Must be non null"); | |
| 359 assert(new_entry->next() == NULL, "Must be null"); | |
| 360 | |
| 361 if (exception_cache() != NULL) { | |
| 362 new_entry->set_next(exception_cache()); | |
| 363 } | |
| 364 set_exception_cache(new_entry); | |
| 365 } | |
| 366 | |
| 367 void nmethod::remove_from_exception_cache(ExceptionCache* ec) { | |
| 368 ExceptionCache* prev = NULL; | |
| 369 ExceptionCache* curr = exception_cache(); | |
| 370 assert(curr != NULL, "nothing to remove"); | |
| 371 // find the previous and next entry of ec | |
| 372 while (curr != ec) { | |
| 373 prev = curr; | |
| 374 curr = curr->next(); | |
| 375 assert(curr != NULL, "ExceptionCache not found"); | |
| 376 } | |
| 377 // now: curr == ec | |
| 378 ExceptionCache* next = curr->next(); | |
| 379 if (prev == NULL) { | |
| 380 set_exception_cache(next); | |
| 381 } else { | |
| 382 prev->set_next(next); | |
| 383 } | |
| 384 delete curr; | |
| 385 } | |
| 386 | |
| 387 | |
| 388 // public method for accessing the exception cache | |
| 389 // These are the public access methods. | |
| 390 address nmethod::handler_for_exception_and_pc(Handle exception, address pc) { | |
| 391 // We never grab a lock to read the exception cache, so we may | |
| 392 // have false negatives. This is okay, as it can only happen during | |
| 393 // the first few exception lookups for a given nmethod. | |
| 394 ExceptionCache* ec = exception_cache(); | |
| 395 while (ec != NULL) { | |
| 396 address ret_val; | |
| 397 if ((ret_val = ec->match(exception,pc)) != NULL) { | |
| 398 return ret_val; | |
| 399 } | |
| 400 ec = ec->next(); | |
| 401 } | |
| 402 return NULL; | |
| 403 } | |
| 404 | |
| 405 | |
| 406 void nmethod::add_handler_for_exception_and_pc(Handle exception, address pc, address handler) { | |
| 407 // There are potential race conditions during exception cache updates, so we | |
| 408 // must own the ExceptionCache_lock before doing ANY modifications. Because | |
| 605 | 409 // we don't lock during reads, it is possible to have several threads attempt |
| 0 | 410 // to update the cache with the same data. We need to check for already inserted |
| 411 // copies of the current data before adding it. | |
| 412 | |
| 413 MutexLocker ml(ExceptionCache_lock); | |
| 414 ExceptionCache* target_entry = exception_cache_entry_for_exception(exception); | |
| 415 | |
| 416 if (target_entry == NULL || !target_entry->add_address_and_handler(pc,handler)) { | |
| 417 target_entry = new ExceptionCache(exception,pc,handler); | |
| 418 add_exception_cache_entry(target_entry); | |
| 419 } | |
| 420 } | |
| 421 | |
| 422 | |
| 423 //-------------end of code for ExceptionCache-------------- | |
| 424 | |
| 425 | |
| 426 int nmethod::total_size() const { | |
| 427 return | |
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428 consts_size() + |
| 1748 | 429 insts_size() + |
| 0 | 430 stub_size() + |
| 431 scopes_data_size() + | |
| 432 scopes_pcs_size() + | |
| 433 handler_table_size() + | |
| 434 nul_chk_table_size(); | |
| 435 } | |
| 436 | |
| 437 const char* nmethod::compile_kind() const { | |
| 438 if (is_osr_method()) return "osr"; | |
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439 if (method() != NULL && is_native_method()) return "c2n"; |
| 0 | 440 return NULL; |
| 441 } | |
| 442 | |
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443 // Fill in default values for various flag fields |
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444 void nmethod::init_defaults() { |
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445 _state = alive; |
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446 _marked_for_reclamation = 0; |
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447 _has_flushed_dependencies = 0; |
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448 _speculatively_disconnected = 0; |
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449 _has_unsafe_access = 0; |
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450 _has_method_handle_invokes = 0; |
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451 _marked_for_deoptimization = 0; |
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452 _lock_count = 0; |
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453 _stack_traversal_mark = 0; |
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454 _unload_reported = false; // jvmti state |
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455 |
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456 NOT_PRODUCT(_has_debug_info = false); |
| 1726 | 457 #ifdef ASSERT |
| 458 _oops_are_stale = false; | |
| 459 #endif | |
| 460 | |
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461 _oops_do_mark_link = NULL; |
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462 _jmethod_id = NULL; |
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463 _osr_link = NULL; |
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464 _scavenge_root_link = NULL; |
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465 _scavenge_root_state = 0; |
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466 _saved_nmethod_link = NULL; |
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467 _compiler = NULL; |
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468 |
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469 _graal_compiled_method = NULL; |
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470 |
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471 #ifdef HAVE_DTRACE_H |
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472 _trap_offset = 0; |
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473 #endif // def HAVE_DTRACE_H |
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474 } |
| 0 | 475 |
| 476 | |
| 477 nmethod* nmethod::new_native_nmethod(methodHandle method, | |
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478 int compile_id, |
| 0 | 479 CodeBuffer *code_buffer, |
| 480 int vep_offset, | |
| 481 int frame_complete, | |
| 482 int frame_size, | |
| 483 ByteSize basic_lock_owner_sp_offset, | |
| 484 ByteSize basic_lock_sp_offset, | |
| 485 OopMapSet* oop_maps) { | |
| 486 // create nmethod | |
| 487 nmethod* nm = NULL; | |
| 488 { | |
| 489 MutexLockerEx mu(CodeCache_lock, Mutex::_no_safepoint_check_flag); | |
| 490 int native_nmethod_size = allocation_size(code_buffer, sizeof(nmethod)); | |
| 491 CodeOffsets offsets; | |
| 492 offsets.set_value(CodeOffsets::Verified_Entry, vep_offset); | |
| 493 offsets.set_value(CodeOffsets::Frame_Complete, frame_complete); | |
| 494 nm = new (native_nmethod_size) | |
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495 nmethod(method(), native_nmethod_size, compile_id, &offsets, |
| 0 | 496 code_buffer, frame_size, |
| 497 basic_lock_owner_sp_offset, basic_lock_sp_offset, | |
| 498 oop_maps); | |
| 499 NOT_PRODUCT(if (nm != NULL) nmethod_stats.note_native_nmethod(nm)); | |
| 500 if (PrintAssembly && nm != NULL) | |
| 501 Disassembler::decode(nm); | |
| 502 } | |
| 503 // verify nmethod | |
| 504 debug_only(if (nm) nm->verify();) // might block | |
| 505 | |
| 506 if (nm != NULL) { | |
| 507 nm->log_new_nmethod(); | |
| 508 } | |
| 509 | |
| 510 return nm; | |
| 511 } | |
| 512 | |
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513 #ifdef HAVE_DTRACE_H |
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514 nmethod* nmethod::new_dtrace_nmethod(methodHandle method, |
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515 CodeBuffer *code_buffer, |
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516 int vep_offset, |
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517 int trap_offset, |
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518 int frame_complete, |
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519 int frame_size) { |
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520 // create nmethod |
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521 nmethod* nm = NULL; |
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522 { |
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523 MutexLockerEx mu(CodeCache_lock, Mutex::_no_safepoint_check_flag); |
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524 int nmethod_size = allocation_size(code_buffer, sizeof(nmethod)); |
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525 CodeOffsets offsets; |
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526 offsets.set_value(CodeOffsets::Verified_Entry, vep_offset); |
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527 offsets.set_value(CodeOffsets::Dtrace_trap, trap_offset); |
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528 offsets.set_value(CodeOffsets::Frame_Complete, frame_complete); |
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529 |
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530 nm = new (nmethod_size) nmethod(method(), nmethod_size, &offsets, code_buffer, frame_size); |
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531 |
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532 NOT_PRODUCT(if (nm != NULL) nmethod_stats.note_nmethod(nm)); |
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533 if (PrintAssembly && nm != NULL) |
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534 Disassembler::decode(nm); |
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535 } |
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536 // verify nmethod |
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537 debug_only(if (nm) nm->verify();) // might block |
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538 |
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539 if (nm != NULL) { |
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540 nm->log_new_nmethod(); |
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541 } |
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542 |
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543 return nm; |
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544 } |
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545 |
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546 #endif // def HAVE_DTRACE_H |
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547 |
| 0 | 548 nmethod* nmethod::new_nmethod(methodHandle method, |
| 549 int compile_id, | |
| 550 int entry_bci, | |
| 551 CodeOffsets* offsets, | |
| 552 int orig_pc_offset, | |
| 553 DebugInformationRecorder* debug_info, | |
| 554 Dependencies* dependencies, | |
| 555 CodeBuffer* code_buffer, int frame_size, | |
| 556 OopMapSet* oop_maps, | |
| 557 ExceptionHandlerTable* handler_table, | |
| 558 ImplicitExceptionTable* nul_chk_table, | |
| 559 AbstractCompiler* compiler, | |
| 560 int comp_level | |
| 561 ) | |
| 562 { | |
| 563 assert(debug_info->oop_recorder() == code_buffer->oop_recorder(), "shared OR"); | |
| 564 // create nmethod | |
| 565 nmethod* nm = NULL; | |
| 566 { MutexLockerEx mu(CodeCache_lock, Mutex::_no_safepoint_check_flag); | |
| 567 int nmethod_size = | |
| 568 allocation_size(code_buffer, sizeof(nmethod)) | |
| 569 + adjust_pcs_size(debug_info->pcs_size()) | |
| 570 + round_to(dependencies->size_in_bytes() , oopSize) | |
| 571 + round_to(handler_table->size_in_bytes(), oopSize) | |
| 572 + round_to(nul_chk_table->size_in_bytes(), oopSize) | |
| 573 + round_to(debug_info->data_size() , oopSize); | |
| 574 nm = new (nmethod_size) | |
| 575 nmethod(method(), nmethod_size, compile_id, entry_bci, offsets, | |
| 576 orig_pc_offset, debug_info, dependencies, code_buffer, frame_size, | |
| 577 oop_maps, | |
| 578 handler_table, | |
| 579 nul_chk_table, | |
| 580 compiler, | |
| 581 comp_level); | |
| 582 if (nm != NULL) { | |
| 583 // To make dependency checking during class loading fast, record | |
| 584 // the nmethod dependencies in the classes it is dependent on. | |
| 585 // This allows the dependency checking code to simply walk the | |
| 586 // class hierarchy above the loaded class, checking only nmethods | |
| 587 // which are dependent on those classes. The slow way is to | |
| 588 // check every nmethod for dependencies which makes it linear in | |
| 589 // the number of methods compiled. For applications with a lot | |
| 590 // classes the slow way is too slow. | |
| 591 for (Dependencies::DepStream deps(nm); deps.next(); ) { | |
| 592 klassOop klass = deps.context_type(); | |
| 593 if (klass == NULL) continue; // ignore things like evol_method | |
| 594 | |
| 595 // record this nmethod as dependent on this klass | |
| 596 instanceKlass::cast(klass)->add_dependent_nmethod(nm); | |
| 597 } | |
| 598 } | |
| 599 NOT_PRODUCT(if (nm != NULL) nmethod_stats.note_nmethod(nm)); | |
| 600 if (PrintAssembly && nm != NULL) | |
| 601 Disassembler::decode(nm); | |
| 602 } | |
| 603 | |
| 604 // verify nmethod | |
| 605 debug_only(if (nm) nm->verify();) // might block | |
| 606 | |
| 607 if (nm != NULL) { | |
| 608 nm->log_new_nmethod(); | |
| 609 } | |
| 610 | |
| 611 // done | |
| 612 return nm; | |
| 613 } | |
| 614 | |
| 615 | |
| 616 // For native wrappers | |
| 617 nmethod::nmethod( | |
| 618 methodOop method, | |
| 619 int nmethod_size, | |
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620 int compile_id, |
| 0 | 621 CodeOffsets* offsets, |
| 622 CodeBuffer* code_buffer, | |
| 623 int frame_size, | |
| 624 ByteSize basic_lock_owner_sp_offset, | |
| 625 ByteSize basic_lock_sp_offset, | |
| 626 OopMapSet* oop_maps ) | |
| 627 : CodeBlob("native nmethod", code_buffer, sizeof(nmethod), | |
| 628 nmethod_size, offsets->value(CodeOffsets::Frame_Complete), frame_size, oop_maps), | |
| 2019 | 629 _native_receiver_sp_offset(basic_lock_owner_sp_offset), |
| 630 _native_basic_lock_sp_offset(basic_lock_sp_offset) | |
| 0 | 631 { |
| 632 { | |
| 633 debug_only(No_Safepoint_Verifier nsv;) | |
| 634 assert_locked_or_safepoint(CodeCache_lock); | |
| 635 | |
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636 init_defaults(); |
| 0 | 637 _method = method; |
| 638 _entry_bci = InvocationEntryBci; | |
| 639 // We have no exception handler or deopt handler make the | |
| 640 // values something that will never match a pc like the nmethod vtable entry | |
| 641 _exception_offset = 0; | |
| 642 _deoptimize_offset = 0; | |
| 1204 | 643 _deoptimize_mh_offset = 0; |
| 0 | 644 _orig_pc_offset = 0; |
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645 |
| 1748 | 646 _consts_offset = data_offset(); |
| 0 | 647 _stub_offset = data_offset(); |
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648 _oops_offset = data_offset(); |
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649 _scopes_data_offset = _oops_offset + round_to(code_buffer->total_oop_size(), oopSize); |
| 0 | 650 _scopes_pcs_offset = _scopes_data_offset; |
| 651 _dependencies_offset = _scopes_pcs_offset; | |
| 652 _handler_table_offset = _dependencies_offset; | |
| 653 _nul_chk_table_offset = _handler_table_offset; | |
| 654 _nmethod_end_offset = _nul_chk_table_offset; | |
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655 _compile_id = compile_id; |
| 0 | 656 _comp_level = CompLevel_none; |
| 1748 | 657 _entry_point = code_begin() + offsets->value(CodeOffsets::Entry); |
| 658 _verified_entry_point = code_begin() + offsets->value(CodeOffsets::Verified_Entry); | |
| 0 | 659 _osr_entry_point = NULL; |
| 660 _exception_cache = NULL; | |
| 661 _pc_desc_cache.reset_to(NULL); | |
| 662 | |
| 663 code_buffer->copy_oops_to(this); | |
|
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664 if (ScavengeRootsInCode && detect_scavenge_root_oops()) { |
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665 CodeCache::add_scavenge_root_nmethod(this); |
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666 } |
|
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667 debug_only(verify_scavenge_root_oops()); |
| 0 | 668 CodeCache::commit(this); |
| 669 } | |
| 670 | |
| 671 if (PrintNativeNMethods || PrintDebugInfo || PrintRelocations || PrintDependencies) { | |
| 672 ttyLocker ttyl; // keep the following output all in one block | |
| 673 // This output goes directly to the tty, not the compiler log. | |
| 674 // To enable tools to match it up with the compilation activity, | |
| 675 // be sure to tag this tty output with the compile ID. | |
| 676 if (xtty != NULL) { | |
| 677 xtty->begin_head("print_native_nmethod"); | |
| 678 xtty->method(_method); | |
| 679 xtty->stamp(); | |
| 680 xtty->end_head(" address='" INTPTR_FORMAT "'", (intptr_t) this); | |
| 681 } | |
| 682 // print the header part first | |
| 683 print(); | |
| 684 // then print the requested information | |
| 685 if (PrintNativeNMethods) { | |
| 686 print_code(); | |
| 687 oop_maps->print(); | |
| 688 } | |
| 689 if (PrintRelocations) { | |
| 690 print_relocations(); | |
| 691 } | |
| 692 if (xtty != NULL) { | |
| 693 xtty->tail("print_native_nmethod"); | |
| 694 } | |
| 695 } | |
| 696 Events::log("Create nmethod " INTPTR_FORMAT, this); | |
| 697 } | |
| 698 | |
|
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699 // For dtrace wrappers |
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700 #ifdef HAVE_DTRACE_H |
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701 nmethod::nmethod( |
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702 methodOop method, |
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703 int nmethod_size, |
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704 CodeOffsets* offsets, |
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705 CodeBuffer* code_buffer, |
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706 int frame_size) |
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707 : CodeBlob("dtrace nmethod", code_buffer, sizeof(nmethod), |
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708 nmethod_size, offsets->value(CodeOffsets::Frame_Complete), frame_size, NULL), |
| 2019 | 709 _native_receiver_sp_offset(in_ByteSize(-1)), |
| 710 _native_basic_lock_sp_offset(in_ByteSize(-1)) | |
|
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711 { |
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712 { |
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713 debug_only(No_Safepoint_Verifier nsv;) |
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714 assert_locked_or_safepoint(CodeCache_lock); |
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715 |
|
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716 init_defaults(); |
|
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717 _method = method; |
|
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718 _entry_bci = InvocationEntryBci; |
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719 // We have no exception handler or deopt handler make the |
|
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720 // values something that will never match a pc like the nmethod vtable entry |
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721 _exception_offset = 0; |
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722 _deoptimize_offset = 0; |
| 1204 | 723 _deoptimize_mh_offset = 0; |
|
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724 _unwind_handler_offset = -1; |
|
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725 _trap_offset = offsets->value(CodeOffsets::Dtrace_trap); |
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726 _orig_pc_offset = 0; |
| 1748 | 727 _consts_offset = data_offset(); |
|
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728 _stub_offset = data_offset(); |
|
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729 _oops_offset = data_offset(); |
|
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730 _scopes_data_offset = _oops_offset + round_to(code_buffer->total_oop_size(), oopSize); |
|
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731 _scopes_pcs_offset = _scopes_data_offset; |
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732 _dependencies_offset = _scopes_pcs_offset; |
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733 _handler_table_offset = _dependencies_offset; |
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734 _nul_chk_table_offset = _handler_table_offset; |
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735 _nmethod_end_offset = _nul_chk_table_offset; |
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736 _compile_id = 0; // default |
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737 _comp_level = CompLevel_none; |
| 1748 | 738 _entry_point = code_begin() + offsets->value(CodeOffsets::Entry); |
| 739 _verified_entry_point = code_begin() + offsets->value(CodeOffsets::Verified_Entry); | |
|
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740 _osr_entry_point = NULL; |
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741 _exception_cache = NULL; |
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742 _pc_desc_cache.reset_to(NULL); |
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743 |
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744 code_buffer->copy_oops_to(this); |
|
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745 debug_only(verify_scavenge_root_oops()); |
|
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746 CodeCache::commit(this); |
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747 } |
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748 |
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749 if (PrintNMethods || PrintDebugInfo || PrintRelocations || PrintDependencies) { |
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750 ttyLocker ttyl; // keep the following output all in one block |
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751 // This output goes directly to the tty, not the compiler log. |
|
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752 // To enable tools to match it up with the compilation activity, |
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753 // be sure to tag this tty output with the compile ID. |
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754 if (xtty != NULL) { |
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755 xtty->begin_head("print_dtrace_nmethod"); |
|
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756 xtty->method(_method); |
|
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757 xtty->stamp(); |
|
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758 xtty->end_head(" address='" INTPTR_FORMAT "'", (intptr_t) this); |
|
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759 } |
|
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760 // print the header part first |
|
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761 print(); |
|
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762 // then print the requested information |
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763 if (PrintNMethods) { |
|
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764 print_code(); |
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765 } |
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766 if (PrintRelocations) { |
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767 print_relocations(); |
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768 } |
|
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769 if (xtty != NULL) { |
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770 xtty->tail("print_dtrace_nmethod"); |
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771 } |
|
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772 } |
|
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773 Events::log("Create nmethod " INTPTR_FORMAT, this); |
|
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774 } |
|
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775 #endif // def HAVE_DTRACE_H |
| 0 | 776 |
| 777 void* nmethod::operator new(size_t size, int nmethod_size) { | |
| 778 // Always leave some room in the CodeCache for I2C/C2I adapters | |
|
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779 if (CodeCache::largest_free_block() < CodeCacheMinimumFreeSpace) return NULL; |
| 0 | 780 return CodeCache::allocate(nmethod_size); |
| 781 } | |
| 782 | |
| 783 | |
| 784 nmethod::nmethod( | |
| 785 methodOop method, | |
| 786 int nmethod_size, | |
| 787 int compile_id, | |
| 788 int entry_bci, | |
| 789 CodeOffsets* offsets, | |
| 790 int orig_pc_offset, | |
| 791 DebugInformationRecorder* debug_info, | |
| 792 Dependencies* dependencies, | |
| 793 CodeBuffer *code_buffer, | |
| 794 int frame_size, | |
| 795 OopMapSet* oop_maps, | |
| 796 ExceptionHandlerTable* handler_table, | |
| 797 ImplicitExceptionTable* nul_chk_table, | |
| 798 AbstractCompiler* compiler, | |
| 799 int comp_level | |
| 800 ) | |
| 801 : CodeBlob("nmethod", code_buffer, sizeof(nmethod), | |
| 802 nmethod_size, offsets->value(CodeOffsets::Frame_Complete), frame_size, oop_maps), | |
| 2019 | 803 _native_receiver_sp_offset(in_ByteSize(-1)), |
| 804 _native_basic_lock_sp_offset(in_ByteSize(-1)) | |
| 0 | 805 { |
| 806 assert(debug_info->oop_recorder() == code_buffer->oop_recorder(), "shared OR"); | |
| 807 { | |
| 808 debug_only(No_Safepoint_Verifier nsv;) | |
| 809 assert_locked_or_safepoint(CodeCache_lock); | |
| 810 | |
|
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811 init_defaults(); |
| 0 | 812 _method = method; |
|
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813 _entry_bci = entry_bci; |
| 0 | 814 _compile_id = compile_id; |
| 815 _comp_level = comp_level; | |
| 816 _compiler = compiler; | |
| 817 _orig_pc_offset = orig_pc_offset; | |
| 1748 | 818 |
| 819 // Section offsets | |
|
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820 _consts_offset = content_offset() + code_buffer->total_offset_of(code_buffer->consts()); |
|
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821 _stub_offset = content_offset() + code_buffer->total_offset_of(code_buffer->stubs()); |
| 0 | 822 |
| 823 // Exception handler and deopt handler are in the stub section | |
|
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824 assert(offsets->value(CodeOffsets::Exceptions) != -1, "must be set"); |
|
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825 assert(offsets->value(CodeOffsets::Deopt ) != -1, "must be set"); |
|
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826 if (UseGraal) { |
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827 // graal produces no (!) stub section |
|
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828 _exception_offset = code_offset() + offsets->value(CodeOffsets::Exceptions); |
|
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829 _deoptimize_offset = code_offset() + offsets->value(CodeOffsets::Deopt); |
| 2106 | 830 if (offsets->value(CodeOffsets::DeoptMH) != -1) { |
|
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|
831 _deoptimize_mh_offset = code_offset() + offsets->value(CodeOffsets::DeoptMH); |
| 1930 | 832 } else { |
| 833 _deoptimize_mh_offset = -1; | |
| 834 } | |
|
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835 } else { |
| 1930 | 836 _exception_offset = _stub_offset + offsets->value(CodeOffsets::Exceptions); |
| 837 _deoptimize_offset = _stub_offset + offsets->value(CodeOffsets::Deopt); | |
| 2106 | 838 if (offsets->value(CodeOffsets::DeoptMH) != -1) { |
| 1930 | 839 _deoptimize_mh_offset = _stub_offset + offsets->value(CodeOffsets::DeoptMH); |
| 840 } else { | |
| 841 _deoptimize_mh_offset = -1; | |
| 842 } | |
|
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843 } |
|
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844 if (offsets->value(CodeOffsets::UnwindHandler) != -1) { |
| 1748 | 845 _unwind_handler_offset = code_offset() + offsets->value(CodeOffsets::UnwindHandler); |
|
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846 } else { |
| 1748 | 847 _unwind_handler_offset = -1; |
|
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848 } |
| 1748 | 849 |
|
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850 _oops_offset = data_offset(); |
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851 _scopes_data_offset = _oops_offset + round_to(code_buffer->total_oop_size (), oopSize); |
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852 _scopes_pcs_offset = _scopes_data_offset + round_to(debug_info->data_size (), oopSize); |
| 0 | 853 _dependencies_offset = _scopes_pcs_offset + adjust_pcs_size(debug_info->pcs_size()); |
| 854 _handler_table_offset = _dependencies_offset + round_to(dependencies->size_in_bytes (), oopSize); | |
| 855 _nul_chk_table_offset = _handler_table_offset + round_to(handler_table->size_in_bytes(), oopSize); | |
| 856 _nmethod_end_offset = _nul_chk_table_offset + round_to(nul_chk_table->size_in_bytes(), oopSize); | |
| 857 | |
| 1748 | 858 _entry_point = code_begin() + offsets->value(CodeOffsets::Entry); |
| 859 _verified_entry_point = code_begin() + offsets->value(CodeOffsets::Verified_Entry); | |
| 860 _osr_entry_point = code_begin() + offsets->value(CodeOffsets::OSR_Entry); | |
| 0 | 861 _exception_cache = NULL; |
| 862 _pc_desc_cache.reset_to(scopes_pcs_begin()); | |
| 863 | |
| 864 // Copy contents of ScopeDescRecorder to nmethod | |
| 865 code_buffer->copy_oops_to(this); | |
| 866 debug_info->copy_to(this); | |
| 867 dependencies->copy_to(this); | |
|
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868 if (ScavengeRootsInCode && detect_scavenge_root_oops()) { |
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869 CodeCache::add_scavenge_root_nmethod(this); |
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870 } |
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871 debug_only(verify_scavenge_root_oops()); |
| 0 | 872 |
| 873 CodeCache::commit(this); | |
| 874 | |
| 875 // Copy contents of ExceptionHandlerTable to nmethod | |
| 876 handler_table->copy_to(this); | |
| 877 nul_chk_table->copy_to(this); | |
| 878 | |
| 879 // we use the information of entry points to find out if a method is | |
| 880 // static or non static | |
| 881 assert(compiler->is_c2() || | |
| 882 _method->is_static() == (entry_point() == _verified_entry_point), | |
| 883 " entry points must be same for static methods and vice versa"); | |
| 884 } | |
| 885 | |
|
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886 bool printnmethods = PrintNMethods |
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887 || CompilerOracle::should_print(_method) |
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888 || CompilerOracle::has_option_string(_method, "PrintNMethods"); |
| 0 | 889 if (printnmethods || PrintDebugInfo || PrintRelocations || PrintDependencies || PrintExceptionHandlers) { |
| 890 print_nmethod(printnmethods); | |
| 891 } | |
| 892 | |
| 893 // Note: Do not verify in here as the CodeCache_lock is | |
| 894 // taken which would conflict with the CompiledIC_lock | |
| 895 // which taken during the verification of call sites. | |
| 896 // (was bug - gri 10/25/99) | |
| 897 | |
| 898 Events::log("Create nmethod " INTPTR_FORMAT, this); | |
| 899 } | |
| 900 | |
| 901 | |
| 902 // Print a short set of xml attributes to identify this nmethod. The | |
| 903 // output should be embedded in some other element. | |
| 904 void nmethod::log_identity(xmlStream* log) const { | |
| 905 log->print(" compile_id='%d'", compile_id()); | |
| 906 const char* nm_kind = compile_kind(); | |
| 907 if (nm_kind != NULL) log->print(" compile_kind='%s'", nm_kind); | |
| 908 if (compiler() != NULL) { | |
| 909 log->print(" compiler='%s'", compiler()->name()); | |
| 910 } | |
| 1783 | 911 if (TieredCompilation) { |
| 912 log->print(" level='%d'", comp_level()); | |
| 913 } | |
| 0 | 914 } |
| 915 | |
| 916 | |
| 917 #define LOG_OFFSET(log, name) \ | |
| 918 if ((intptr_t)name##_end() - (intptr_t)name##_begin()) \ | |
| 919 log->print(" " XSTR(name) "_offset='%d'" , \ | |
| 920 (intptr_t)name##_begin() - (intptr_t)this) | |
| 921 | |
| 922 | |
| 923 void nmethod::log_new_nmethod() const { | |
| 924 if (LogCompilation && xtty != NULL) { | |
| 925 ttyLocker ttyl; | |
| 926 HandleMark hm; | |
| 927 xtty->begin_elem("nmethod"); | |
| 928 log_identity(xtty); | |
| 1748 | 929 xtty->print(" entry='" INTPTR_FORMAT "' size='%d'", code_begin(), size()); |
| 0 | 930 xtty->print(" address='" INTPTR_FORMAT "'", (intptr_t) this); |
| 931 | |
| 932 LOG_OFFSET(xtty, relocation); | |
|
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933 LOG_OFFSET(xtty, consts); |
| 1748 | 934 LOG_OFFSET(xtty, insts); |
| 0 | 935 LOG_OFFSET(xtty, stub); |
| 936 LOG_OFFSET(xtty, scopes_data); | |
| 937 LOG_OFFSET(xtty, scopes_pcs); | |
| 938 LOG_OFFSET(xtty, dependencies); | |
| 939 LOG_OFFSET(xtty, handler_table); | |
| 940 LOG_OFFSET(xtty, nul_chk_table); | |
| 941 LOG_OFFSET(xtty, oops); | |
| 942 | |
| 943 xtty->method(method()); | |
| 944 xtty->stamp(); | |
| 945 xtty->end_elem(); | |
| 946 } | |
| 947 } | |
| 948 | |
| 949 #undef LOG_OFFSET | |
| 950 | |
| 951 | |
| 952 // Print out more verbose output usually for a newly created nmethod. | |
|
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953 void nmethod::print_on(outputStream* st, const char* msg) const { |
| 0 | 954 if (st != NULL) { |
| 955 ttyLocker ttyl; | |
|
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956 CompileTask::print_compilation(st, this, msg); |
| 0 | 957 if (WizardMode) st->print(" (" INTPTR_FORMAT ")", this); |
| 958 } | |
| 959 } | |
| 960 | |
| 961 | |
| 962 void nmethod::print_nmethod(bool printmethod) { | |
| 963 ttyLocker ttyl; // keep the following output all in one block | |
| 964 if (xtty != NULL) { | |
| 965 xtty->begin_head("print_nmethod"); | |
| 966 xtty->stamp(); | |
| 967 xtty->end_head(); | |
| 968 } | |
| 969 // print the header part first | |
| 970 print(); | |
| 971 // then print the requested information | |
| 972 if (printmethod) { | |
| 973 print_code(); | |
| 974 print_pcs(); | |
| 975 oop_maps()->print(); | |
| 976 } | |
| 977 if (PrintDebugInfo) { | |
| 978 print_scopes(); | |
| 979 } | |
| 980 if (PrintRelocations) { | |
| 981 print_relocations(); | |
| 982 } | |
| 983 if (PrintDependencies) { | |
| 984 print_dependencies(); | |
| 985 } | |
| 986 if (PrintExceptionHandlers) { | |
| 987 print_handler_table(); | |
| 988 print_nul_chk_table(); | |
| 989 } | |
| 990 if (xtty != NULL) { | |
| 991 xtty->tail("print_nmethod"); | |
| 992 } | |
| 993 } | |
| 994 | |
| 995 | |
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996 // Promote one word from an assembly-time handle to a live embedded oop. |
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997 inline void nmethod::initialize_immediate_oop(oop* dest, jobject handle) { |
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998 if (handle == NULL || |
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999 // As a special case, IC oops are initialized to 1 or -1. |
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1000 handle == (jobject) Universe::non_oop_word()) { |
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1001 (*dest) = (oop) handle; |
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1002 } else { |
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1003 (*dest) = JNIHandles::resolve_non_null(handle); |
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1004 } |
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1005 } |
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1006 |
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1007 |
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1008 void nmethod::copy_oops(GrowableArray<jobject>* array) { |
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1009 //assert(oops_size() == 0, "do this handshake just once, please"); |
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1010 int length = array->length(); |
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1011 assert((address)(oops_begin() + length) <= data_end(), "oops big enough"); |
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1012 oop* dest = oops_begin(); |
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1013 for (int index = 0 ; index < length; index++) { |
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1014 initialize_immediate_oop(&dest[index], array->at(index)); |
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1015 } |
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1016 |
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1017 // Now we can fix up all the oops in the code. We need to do this |
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1018 // in the code because the assembler uses jobjects as placeholders. |
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1019 // The code and relocations have already been initialized by the |
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1020 // CodeBlob constructor, so it is valid even at this early point to |
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1021 // iterate over relocations and patch the code. |
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1022 fix_oop_relocations(NULL, NULL, /*initialize_immediates=*/ true); |
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1023 } |
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1024 |
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1025 |
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1026 bool nmethod::is_at_poll_return(address pc) { |
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1027 RelocIterator iter(this, pc, pc+1); |
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1028 while (iter.next()) { |
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1029 if (iter.type() == relocInfo::poll_return_type) |
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1030 return true; |
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1031 } |
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1032 return false; |
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1033 } |
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1034 |
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1035 |
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1036 bool nmethod::is_at_poll_or_poll_return(address pc) { |
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1037 RelocIterator iter(this, pc, pc+1); |
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1038 while (iter.next()) { |
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1039 relocInfo::relocType t = iter.type(); |
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1040 if (t == relocInfo::poll_return_type || t == relocInfo::poll_type) |
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1041 return true; |
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1042 } |
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1043 return false; |
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1044 } |
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1045 |
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1046 |
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1047 void nmethod::fix_oop_relocations(address begin, address end, bool initialize_immediates) { |
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1048 // re-patch all oop-bearing instructions, just in case some oops moved |
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1049 RelocIterator iter(this, begin, end); |
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1050 while (iter.next()) { |
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1051 if (iter.type() == relocInfo::oop_type) { |
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1052 oop_Relocation* reloc = iter.oop_reloc(); |
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1053 if (initialize_immediates && reloc->oop_is_immediate()) { |
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1054 oop* dest = reloc->oop_addr(); |
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1055 initialize_immediate_oop(dest, (jobject) *dest); |
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1056 } |
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1057 // Refresh the oop-related bits of this instruction. |
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1058 reloc->fix_oop_relocation(); |
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1059 } |
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1060 |
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1061 // There must not be any interfering patches or breakpoints. |
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1062 assert(!(iter.type() == relocInfo::breakpoint_type |
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1063 && iter.breakpoint_reloc()->active()), |
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1064 "no active breakpoint"); |
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1065 } |
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1066 } |
|
1a5913bf5e19
6951083: oops and relocations should part of nmethod not CodeBlob
twisti
parents:
1538
diff
changeset
|
1067 |
|
1a5913bf5e19
6951083: oops and relocations should part of nmethod not CodeBlob
twisti
parents:
1538
diff
changeset
|
1068 |
|
2375
d673ef06fe96
7028374: race in fix_oop_relocations for scavengeable nmethods
never
parents:
2360
diff
changeset
|
1069 void nmethod::verify_oop_relocations() { |
|
d673ef06fe96
7028374: race in fix_oop_relocations for scavengeable nmethods
never
parents:
2360
diff
changeset
|
1070 // 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
|
1071 RelocIterator iter(this, NULL, NULL); |
|
d673ef06fe96
7028374: race in fix_oop_relocations for scavengeable nmethods
never
parents:
2360
diff
changeset
|
1072 while (iter.next()) { |
|
d673ef06fe96
7028374: race in fix_oop_relocations for scavengeable nmethods
never
parents:
2360
diff
changeset
|
1073 if (iter.type() == relocInfo::oop_type) { |
|
d673ef06fe96
7028374: race in fix_oop_relocations for scavengeable nmethods
never
parents:
2360
diff
changeset
|
1074 oop_Relocation* reloc = iter.oop_reloc(); |
|
d673ef06fe96
7028374: race in fix_oop_relocations for scavengeable nmethods
never
parents:
2360
diff
changeset
|
1075 if (!reloc->oop_is_immediate()) { |
|
d673ef06fe96
7028374: race in fix_oop_relocations for scavengeable nmethods
never
parents:
2360
diff
changeset
|
1076 reloc->verify_oop_relocation(); |
|
d673ef06fe96
7028374: race in fix_oop_relocations for scavengeable nmethods
never
parents:
2360
diff
changeset
|
1077 } |
|
d673ef06fe96
7028374: race in fix_oop_relocations for scavengeable nmethods
never
parents:
2360
diff
changeset
|
1078 } |
|
d673ef06fe96
7028374: race in fix_oop_relocations for scavengeable nmethods
never
parents:
2360
diff
changeset
|
1079 } |
|
d673ef06fe96
7028374: race in fix_oop_relocations for scavengeable nmethods
never
parents:
2360
diff
changeset
|
1080 } |
|
d673ef06fe96
7028374: race in fix_oop_relocations for scavengeable nmethods
never
parents:
2360
diff
changeset
|
1081 |
|
d673ef06fe96
7028374: race in fix_oop_relocations for scavengeable nmethods
never
parents:
2360
diff
changeset
|
1082 |
| 0 | 1083 ScopeDesc* nmethod::scope_desc_at(address pc) { |
| 1084 PcDesc* pd = pc_desc_at(pc); | |
| 1085 guarantee(pd != NULL, "scope must be present"); | |
| 1086 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
|
1087 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
|
1088 pd->return_oop()); |
| 0 | 1089 } |
| 1090 | |
| 1091 | |
| 1092 void nmethod::clear_inline_caches() { | |
| 1093 assert(SafepointSynchronize::is_at_safepoint(), "cleaning of IC's only allowed at safepoint"); | |
| 1094 if (is_zombie()) { | |
| 1095 return; | |
| 1096 } | |
| 1097 | |
| 1098 RelocIterator iter(this); | |
| 1099 while (iter.next()) { | |
| 1100 iter.reloc()->clear_inline_cache(); | |
| 1101 } | |
| 1102 } | |
| 1103 | |
| 1104 | |
| 1105 void nmethod::cleanup_inline_caches() { | |
| 1106 | |
|
1538
bfe29ec02863
6950075: nmethod sweeper should operate concurrently
never
parents:
1490
diff
changeset
|
1107 assert_locked_or_safepoint(CompiledIC_lock); |
| 0 | 1108 |
| 1109 // If the method is not entrant or zombie then a JMP is plastered over the | |
| 1110 // first few bytes. If an oop in the old code was there, that oop | |
| 1111 // should not get GC'd. Skip the first few bytes of oops on | |
| 1112 // not-entrant methods. | |
| 1113 address low_boundary = verified_entry_point(); | |
| 1114 if (!is_in_use()) { | |
| 1115 low_boundary += NativeJump::instruction_size; | |
| 1116 // %%% Note: On SPARC we patch only a 4-byte trap, not a full NativeJump. | |
| 1117 // This means that the low_boundary is going to be a little too high. | |
| 1118 // This shouldn't matter, since oops of non-entrant methods are never used. | |
| 1119 // In fact, why are we bothering to look at oops in a non-entrant method?? | |
| 1120 } | |
| 1121 | |
| 1122 // Find all calls in an nmethod, and clear the ones that points to zombie methods | |
| 1123 ResourceMark rm; | |
| 1124 RelocIterator iter(this, low_boundary); | |
| 1125 while(iter.next()) { | |
| 1126 switch(iter.type()) { | |
| 1127 case relocInfo::virtual_call_type: | |
| 1128 case relocInfo::opt_virtual_call_type: { | |
| 1129 CompiledIC *ic = CompiledIC_at(iter.reloc()); | |
| 1130 // Ok, to lookup references to zombies here | |
| 1131 CodeBlob *cb = CodeCache::find_blob_unsafe(ic->ic_destination()); | |
| 1132 if( cb != NULL && cb->is_nmethod() ) { | |
| 1133 nmethod* nm = (nmethod*)cb; | |
| 1134 // Clean inline caches pointing to both zombie and not_entrant methods | |
| 1202 | 1135 if (!nm->is_in_use() || (nm->method()->code() != nm)) ic->set_to_clean(); |
| 0 | 1136 } |
| 1137 break; | |
| 1138 } | |
| 1139 case relocInfo::static_call_type: { | |
| 1140 CompiledStaticCall *csc = compiledStaticCall_at(iter.reloc()); | |
| 1141 CodeBlob *cb = CodeCache::find_blob_unsafe(csc->destination()); | |
| 1142 if( cb != NULL && cb->is_nmethod() ) { | |
| 1143 nmethod* nm = (nmethod*)cb; | |
| 1144 // Clean inline caches pointing to both zombie and not_entrant methods | |
| 1202 | 1145 if (!nm->is_in_use() || (nm->method()->code() != nm)) csc->set_to_clean(); |
| 0 | 1146 } |
| 1147 break; | |
| 1148 } | |
| 1149 } | |
| 1150 } | |
| 1151 } | |
| 1152 | |
|
989
148e5441d916
6863023: need non-perm oops in code cache for JSR 292
jrose
parents:
931
diff
changeset
|
1153 // This is a private interface with the sweeper. |
| 0 | 1154 void nmethod::mark_as_seen_on_stack() { |
| 1155 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
|
1156 // Set the traversal mark to ensure that the sweeper does 2 |
|
2a47bd84841f
6965184: possible races in make_not_entrant_or_zombie
never
parents:
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diff
changeset
|
1157 // cleaning passes before moving to zombie. |
| 0 | 1158 set_stack_traversal_mark(NMethodSweeper::traversal_count()); |
| 1159 } | |
| 1160 | |
|
2342
46a56fac55c7
7024970: 2/3 assert(ServiceThread::is_service_thread(Thread::current())) failed: Service thread must post enqueue
dcubed
parents:
2321
diff
changeset
|
1161 // 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
|
1162 // 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
|
1163 // and not in use by the ServiceThread) |
| 0 | 1164 bool nmethod::can_not_entrant_be_converted() { |
| 1165 assert(is_not_entrant(), "must be a non-entrant method"); | |
| 1166 | |
| 1167 // Since the nmethod sweeper only does partial sweep the sweeper's traversal | |
| 1168 // count can be greater than the stack traversal count before it hits the | |
| 1169 // 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
|
1170 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
|
1171 !is_locked_by_vm(); |
| 0 | 1172 } |
| 1173 | |
| 1174 void nmethod::inc_decompile_count() { | |
| 1783 | 1175 if (!is_compiled_by_c2()) return; |
| 0 | 1176 // Could be gated by ProfileTraps, but do not bother... |
| 1177 methodOop m = method(); | |
| 1178 if (m == NULL) return; | |
| 1179 methodDataOop mdo = m->method_data(); | |
| 1180 if (mdo == NULL) return; | |
| 1181 // There is a benign race here. See comments in methodDataOop.hpp. | |
| 1182 mdo->inc_decompile_count(); | |
| 1183 } | |
| 1184 | |
| 1185 void nmethod::make_unloaded(BoolObjectClosure* is_alive, oop cause) { | |
| 1186 | |
| 1187 post_compiled_method_unload(); | |
| 1188 | |
| 1189 // Since this nmethod is being unloaded, make sure that dependencies | |
| 1190 // recorded in instanceKlasses get flushed and pass non-NULL closure to | |
| 1191 // indicate that this work is being done during a GC. | |
| 1192 assert(Universe::heap()->is_gc_active(), "should only be called during gc"); | |
| 1193 assert(is_alive != NULL, "Should be non-NULL"); | |
| 1194 // A non-NULL is_alive closure indicates that this is being called during GC. | |
| 1195 flush_dependencies(is_alive); | |
| 1196 | |
| 1197 // Break cycle between nmethod & method | |
| 1198 if (TraceClassUnloading && WizardMode) { | |
| 1199 tty->print_cr("[Class unloading: Making nmethod " INTPTR_FORMAT | |
| 1200 " unloadable], methodOop(" INTPTR_FORMAT | |
| 1201 "), cause(" INTPTR_FORMAT ")", | |
| 1202 this, (address)_method, (address)cause); | |
|
989
148e5441d916
6863023: need non-perm oops in code cache for JSR 292
jrose
parents:
931
diff
changeset
|
1203 if (!Universe::heap()->is_gc_active()) |
|
148e5441d916
6863023: need non-perm oops in code cache for JSR 292
jrose
parents:
931
diff
changeset
|
1204 cause->klass()->print(); |
| 0 | 1205 } |
| 941 | 1206 // Unlink the osr method, so we do not look this up again |
| 1207 if (is_osr_method()) { | |
| 1208 invalidate_osr_method(); | |
| 1209 } | |
| 0 | 1210 // If _method is already NULL the methodOop is about to be unloaded, |
| 1211 // so we don't have to break the cycle. Note that it is possible to | |
| 1212 // have the methodOop live here, in case we unload the nmethod because | |
| 1213 // it is pointing to some oop (other than the methodOop) being unloaded. | |
| 1214 if (_method != NULL) { | |
| 1215 // OSR methods point to the methodOop, but the methodOop does not | |
| 1216 // point back! | |
| 1217 if (_method->code() == this) { | |
| 1218 _method->clear_code(); // Break a cycle | |
| 1219 } | |
| 1220 _method = NULL; // Clear the method of this dead nmethod | |
| 1221 } | |
| 1222 // Make the class unloaded - i.e., change state and notify sweeper | |
|
1538
bfe29ec02863
6950075: nmethod sweeper should operate concurrently
never
parents:
1490
diff
changeset
|
1223 assert(SafepointSynchronize::is_at_safepoint(), "must be at safepoint"); |
| 0 | 1224 if (is_in_use()) { |
| 1225 // Transitioning directly from live to unloaded -- so | |
| 1226 // we need to force a cache clean-up; remember this | |
| 1227 // for later on. | |
| 1228 CodeCache::set_needs_cache_clean(true); | |
| 1229 } | |
|
1644
2a47bd84841f
6965184: possible races in make_not_entrant_or_zombie
never
parents:
1616
diff
changeset
|
1230 _state = unloaded; |
| 0 | 1231 |
|
1109
032260830071
5057818: codecache full and compiler disabled in bigapps fastdebug run
never
parents:
994
diff
changeset
|
1232 // Log the unloading. |
|
032260830071
5057818: codecache full and compiler disabled in bigapps fastdebug run
never
parents:
994
diff
changeset
|
1233 log_state_change(); |
|
032260830071
5057818: codecache full and compiler disabled in bigapps fastdebug run
never
parents:
994
diff
changeset
|
1234 |
| 0 | 1235 // The methodOop is gone at this point |
| 1236 assert(_method == NULL, "Tautology"); | |
| 1237 | |
|
989
148e5441d916
6863023: need non-perm oops in code cache for JSR 292
jrose
parents:
931
diff
changeset
|
1238 set_osr_link(NULL); |
|
148e5441d916
6863023: need non-perm oops in code cache for JSR 292
jrose
parents:
931
diff
changeset
|
1239 //set_scavenge_root_link(NULL); // done by prune_scavenge_root_nmethods |
| 0 | 1240 NMethodSweeper::notify(this); |
| 1241 } | |
| 1242 | |
| 1243 void nmethod::invalidate_osr_method() { | |
| 1244 assert(_entry_bci != InvocationEntryBci, "wrong kind of nmethod"); | |
| 1245 // Remove from list of active nmethods | |
| 1246 if (method() != NULL) | |
| 1247 instanceKlass::cast(method()->method_holder())->remove_osr_nmethod(this); | |
| 1248 // Set entry as invalid | |
| 1249 _entry_bci = InvalidOSREntryBci; | |
| 1250 } | |
| 1251 | |
|
1109
032260830071
5057818: codecache full and compiler disabled in bigapps fastdebug run
never
parents:
994
diff
changeset
|
1252 void nmethod::log_state_change() const { |
| 0 | 1253 if (LogCompilation) { |
| 1254 if (xtty != NULL) { | |
| 1255 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
|
1256 if (_state == unloaded) { |
|
1109
032260830071
5057818: codecache full and compiler disabled in bigapps fastdebug run
never
parents:
994
diff
changeset
|
1257 xtty->begin_elem("make_unloaded thread='" UINTX_FORMAT "'", |
|
032260830071
5057818: codecache full and compiler disabled in bigapps fastdebug run
never
parents:
994
diff
changeset
|
1258 os::current_thread_id()); |
|
032260830071
5057818: codecache full and compiler disabled in bigapps fastdebug run
never
parents:
994
diff
changeset
|
1259 } else { |
|
032260830071
5057818: codecache full and compiler disabled in bigapps fastdebug run
never
parents:
994
diff
changeset
|
1260 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
|
1261 os::current_thread_id(), |
|
1644
2a47bd84841f
6965184: possible races in make_not_entrant_or_zombie
never
parents:
1616
diff
changeset
|
1262 (_state == zombie ? " zombie='1'" : "")); |
|
1109
032260830071
5057818: codecache full and compiler disabled in bigapps fastdebug run
never
parents:
994
diff
changeset
|
1263 } |
| 0 | 1264 log_identity(xtty); |
| 1265 xtty->stamp(); | |
| 1266 xtty->end_elem(); | |
| 1267 } | |
| 1268 } | |
|
1644
2a47bd84841f
6965184: possible races in make_not_entrant_or_zombie
never
parents:
1616
diff
changeset
|
1269 if (PrintCompilation && _state != unloaded) { |
|
2405
3d58a4983660
7022998: JSR 292 recursive method handle calls inline themselves infinitely
twisti
parents:
2376
diff
changeset
|
1270 print_on(tty, _state == zombie ? "made zombie" : "made not entrant"); |
| 0 | 1271 } |
| 1272 } | |
| 1273 | |
| 1274 // Common functionality for both make_not_entrant and make_zombie | |
| 1141 | 1275 bool nmethod::make_not_entrant_or_zombie(unsigned int state) { |
| 0 | 1276 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
|
1277 assert(!is_zombie(), "should not already be a zombie"); |
| 0 | 1278 |
|
1644
2a47bd84841f
6965184: possible races in make_not_entrant_or_zombie
never
parents:
1616
diff
changeset
|
1279 // Make sure neither the nmethod nor the method is flushed in case of a safepoint in code below. |
| 0 | 1280 nmethodLocker nml(this); |
|
1644
2a47bd84841f
6965184: possible races in make_not_entrant_or_zombie
never
parents:
1616
diff
changeset
|
1281 methodHandle the_method(method()); |
| 1726 | 1282 No_Safepoint_Verifier nsv; |
| 0 | 1283 |
| 1284 { | |
|
1109
032260830071
5057818: codecache full and compiler disabled in bigapps fastdebug run
never
parents:
994
diff
changeset
|
1285 // 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
|
1286 // 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
|
1287 // 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
|
1288 // verified entry point of regular methods. |
|
032260830071
5057818: codecache full and compiler disabled in bigapps fastdebug run
never
parents:
994
diff
changeset
|
1289 if (is_osr_method()) { |
|
032260830071
5057818: codecache full and compiler disabled in bigapps fastdebug run
never
parents:
994
diff
changeset
|
1290 // this effectively makes the osr nmethod not entrant |
|
032260830071
5057818: codecache full and compiler disabled in bigapps fastdebug run
never
parents:
994
diff
changeset
|
1291 invalidate_osr_method(); |
|
032260830071
5057818: codecache full and compiler disabled in bigapps fastdebug run
never
parents:
994
diff
changeset
|
1292 } |
|
032260830071
5057818: codecache full and compiler disabled in bigapps fastdebug run
never
parents:
994
diff
changeset
|
1293 |
| 0 | 1294 // Enter critical section. Does not block for safepoint. |
| 1295 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
|
1296 |
|
1644
2a47bd84841f
6965184: possible races in make_not_entrant_or_zombie
never
parents:
1616
diff
changeset
|
1297 if (_state == state) { |
|
1109
032260830071
5057818: codecache full and compiler disabled in bigapps fastdebug run
never
parents:
994
diff
changeset
|
1298 // another thread already performed this transition so nothing |
|
032260830071
5057818: codecache full and compiler disabled in bigapps fastdebug run
never
parents:
994
diff
changeset
|
1299 // to do, but return false to indicate this. |
|
032260830071
5057818: codecache full and compiler disabled in bigapps fastdebug run
never
parents:
994
diff
changeset
|
1300 return false; |
|
032260830071
5057818: codecache full and compiler disabled in bigapps fastdebug run
never
parents:
994
diff
changeset
|
1301 } |
|
032260830071
5057818: codecache full and compiler disabled in bigapps fastdebug run
never
parents:
994
diff
changeset
|
1302 |
|
3683
345c3bbf9c3c
store RiCompiledMethod in nmethod and:
Lukas Stadler <lukas.stadler@jku.at>
parents:
3464
diff
changeset
|
1303 #ifdef GRAAL |
|
345c3bbf9c3c
store RiCompiledMethod in nmethod and:
Lukas Stadler <lukas.stadler@jku.at>
parents:
3464
diff
changeset
|
1304 if (_graal_compiled_method != NULL) { |
|
345c3bbf9c3c
store RiCompiledMethod in nmethod and:
Lukas Stadler <lukas.stadler@jku.at>
parents:
3464
diff
changeset
|
1305 HotSpotCompiledMethod::set_nmethod(_graal_compiled_method, 0); |
|
345c3bbf9c3c
store RiCompiledMethod in nmethod and:
Lukas Stadler <lukas.stadler@jku.at>
parents:
3464
diff
changeset
|
1306 _graal_compiled_method = NULL; |
|
345c3bbf9c3c
store RiCompiledMethod in nmethod and:
Lukas Stadler <lukas.stadler@jku.at>
parents:
3464
diff
changeset
|
1307 } |
|
345c3bbf9c3c
store RiCompiledMethod in nmethod and:
Lukas Stadler <lukas.stadler@jku.at>
parents:
3464
diff
changeset
|
1308 #endif |
|
345c3bbf9c3c
store RiCompiledMethod in nmethod and:
Lukas Stadler <lukas.stadler@jku.at>
parents:
3464
diff
changeset
|
1309 |
| 0 | 1310 // The caller can be calling the method statically or through an inline |
| 1311 // cache call. | |
|
1109
032260830071
5057818: codecache full and compiler disabled in bigapps fastdebug run
never
parents:
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diff
changeset
|
1312 if (!is_osr_method() && !is_not_entrant()) { |
| 0 | 1313 NativeJump::patch_verified_entry(entry_point(), verified_entry_point(), |
| 1314 SharedRuntime::get_handle_wrong_method_stub()); | |
| 1315 } | |
| 1316 | |
|
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1317 if (is_in_use()) { |
|
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1318 // It's a true state change, so mark the method as decompiled. |
|
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1319 // Do it only for transition from alive. |
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1320 inc_decompile_count(); |
|
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1321 } |
|
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1322 |
| 0 | 1323 // Change state |
|
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1324 _state = state; |
|
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1325 |
|
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1326 // Log the transition once |
|
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1327 log_state_change(); |
|
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1328 |
|
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1329 // Remove nmethod from method. |
|
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1330 // We need to check if both the _code and _from_compiled_code_entry_point |
|
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1331 // refer to this nmethod because there is a race in setting these two fields |
|
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1332 // in methodOop as seen in bugid 4947125. |
|
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1333 // If the vep() points to the zombie nmethod, the memory for the nmethod |
|
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1334 // could be flushed and the compiler and vtable stubs could still call |
|
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1335 // through it. |
|
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1336 if (method() != NULL && (method()->code() == this || |
|
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1337 method()->from_compiled_entry() == verified_entry_point())) { |
|
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1338 HandleMark hm; |
|
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1339 method()->clear_code(); |
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1340 } |
|
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1341 |
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1342 if (state == not_entrant) { |
|
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1343 mark_as_seen_on_stack(); |
|
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1344 } |
|
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1345 |
| 0 | 1346 } // leave critical region under Patching_lock |
| 1347 | |
|
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1348 // When the nmethod becomes zombie it is no longer alive so the |
|
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1349 // dependencies must be flushed. nmethods in the not_entrant |
|
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1350 // state will be flushed later when the transition to zombie |
|
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1351 // happens or they get unloaded. |
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1352 if (state == zombie) { |
| 1726 | 1353 { |
| 1354 // Flushing dependecies must be done before any possible | |
| 1355 // safepoint can sneak in, otherwise the oops used by the | |
| 1356 // dependency logic could have become stale. | |
| 1357 MutexLockerEx mu(CodeCache_lock, Mutex::_no_safepoint_check_flag); | |
| 1358 flush_dependencies(NULL); | |
| 1359 } | |
|
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1360 |
|
2342
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1361 // zombie only - if a JVMTI agent has enabled the CompiledMethodUnload |
|
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1362 // event and it hasn't already been reported for this nmethod then |
|
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1363 // report it now. The event may have been reported earilier if the GC |
|
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1364 // marked it for unloading). JvmtiDeferredEventQueue support means |
|
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1365 // we no longer go to a safepoint here. |
|
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|
1366 post_compiled_method_unload(); |
| 1726 | 1367 |
| 1368 #ifdef ASSERT | |
| 1369 // It's no longer safe to access the oops section since zombie | |
| 1370 // nmethods aren't scanned for GC. | |
| 1371 _oops_are_stale = true; | |
| 1372 #endif | |
|
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|
1373 } else { |
|
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1374 assert(state == not_entrant, "other cases may need to be handled differently"); |
|
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|
1375 } |
|
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|
1376 |
| 0 | 1377 if (TraceCreateZombies) { |
| 1378 tty->print_cr("nmethod <" INTPTR_FORMAT "> code made %s", this, (state == not_entrant) ? "not entrant" : "zombie"); | |
| 1379 } | |
| 1380 | |
| 1381 // Make sweeper aware that there is a zombie method that needs to be removed | |
| 1382 NMethodSweeper::notify(this); | |
| 1383 | |
|
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|
1384 return true; |
| 0 | 1385 } |
| 1386 | |
| 1387 void nmethod::flush() { | |
| 1388 // Note that there are no valid oops in the nmethod anymore. | |
| 1389 assert(is_zombie() || (is_osr_method() && is_unloaded()), "must be a zombie method"); | |
| 1390 assert(is_marked_for_reclamation() || (is_osr_method() && is_unloaded()), "must be marked for reclamation"); | |
| 1391 | |
| 1392 assert (!is_locked_by_vm(), "locked methods shouldn't be flushed"); | |
|
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|
1393 assert_locked_or_safepoint(CodeCache_lock); |
| 0 | 1394 |
| 1395 // completely deallocate this method | |
| 1396 EventMark m("flushing nmethod " INTPTR_FORMAT " %s", this, ""); | |
| 1397 if (PrintMethodFlushing) { | |
| 1202 | 1398 tty->print_cr("*flushing nmethod %3d/" INTPTR_FORMAT ". Live blobs:" UINT32_FORMAT "/Free CodeCache:" SIZE_FORMAT "Kb", |
| 1399 _compile_id, this, CodeCache::nof_blobs(), CodeCache::unallocated_capacity()/1024); | |
| 0 | 1400 } |
| 1401 | |
| 1402 // We need to deallocate any ExceptionCache data. | |
| 1403 // Note that we do not need to grab the nmethod lock for this, it | |
| 1404 // better be thread safe if we're disposing of it! | |
| 1405 ExceptionCache* ec = exception_cache(); | |
| 1406 set_exception_cache(NULL); | |
| 1407 while(ec != NULL) { | |
| 1408 ExceptionCache* next = ec->next(); | |
| 1409 delete ec; | |
| 1410 ec = next; | |
| 1411 } | |
| 1412 | |
|
989
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|
1413 if (on_scavenge_root_list()) { |
|
148e5441d916
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|
1414 CodeCache::drop_scavenge_root_nmethod(this); |
|
148e5441d916
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|
1415 } |
|
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changeset
|
1416 |
| 1202 | 1417 if (is_speculatively_disconnected()) { |
| 1418 CodeCache::remove_saved_code(this); | |
| 1419 } | |
| 1420 | |
| 1692 | 1421 #ifdef SHARK |
|
1845
a222fcfba398
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parents:
1784
diff
changeset
|
1422 ((SharkCompiler *) compiler())->free_compiled_method(insts_begin()); |
| 1692 | 1423 #endif // SHARK |
| 1424 | |
| 0 | 1425 ((CodeBlob*)(this))->flush(); |
| 1426 | |
| 1427 CodeCache::free(this); | |
| 1428 } | |
| 1429 | |
| 1430 | |
| 1431 // | |
| 1432 // Notify all classes this nmethod is dependent on that it is no | |
| 1433 // longer dependent. This should only be called in two situations. | |
| 1434 // First, when a nmethod transitions to a zombie all dependents need | |
| 1435 // to be clear. Since zombification happens at a safepoint there's no | |
| 1436 // synchronization issues. The second place is a little more tricky. | |
| 1437 // During phase 1 of mark sweep class unloading may happen and as a | |
| 1438 // result some nmethods may get unloaded. In this case the flushing | |
| 1439 // of dependencies must happen during phase 1 since after GC any | |
| 1440 // dependencies in the unloaded nmethod won't be updated, so | |
| 1441 // traversing the dependency information in unsafe. In that case this | |
| 1442 // function is called with a non-NULL argument and this function only | |
| 1443 // notifies instanceKlasses that are reachable | |
| 1444 | |
| 1445 void nmethod::flush_dependencies(BoolObjectClosure* is_alive) { | |
|
1538
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|
1446 assert_locked_or_safepoint(CodeCache_lock); |
| 0 | 1447 assert(Universe::heap()->is_gc_active() == (is_alive != NULL), |
| 1448 "is_alive is non-NULL if and only if we are called during GC"); | |
| 1449 if (!has_flushed_dependencies()) { | |
| 1450 set_has_flushed_dependencies(); | |
| 1451 for (Dependencies::DepStream deps(this); deps.next(); ) { | |
| 1452 klassOop klass = deps.context_type(); | |
| 1453 if (klass == NULL) continue; // ignore things like evol_method | |
| 1454 | |
| 1455 // During GC the is_alive closure is non-NULL, and is used to | |
| 1456 // determine liveness of dependees that need to be updated. | |
| 1457 if (is_alive == NULL || is_alive->do_object_b(klass)) { | |
| 1458 instanceKlass::cast(klass)->remove_dependent_nmethod(this); | |
| 1459 } | |
| 1460 } | |
| 1461 } | |
| 1462 } | |
| 1463 | |
| 1464 | |
| 1465 // If this oop is not live, the nmethod can be unloaded. | |
| 1466 bool nmethod::can_unload(BoolObjectClosure* is_alive, | |
| 1467 OopClosure* keep_alive, | |
| 1468 oop* root, bool unloading_occurred) { | |
| 1469 assert(root != NULL, "just checking"); | |
| 1470 oop obj = *root; | |
| 1471 if (obj == NULL || is_alive->do_object_b(obj)) { | |
| 1472 return false; | |
| 1473 } | |
| 1474 if (obj->is_compiledICHolder()) { | |
| 1475 compiledICHolderOop cichk_oop = compiledICHolderOop(obj); | |
| 1476 if (is_alive->do_object_b( | |
| 1477 cichk_oop->holder_method()->method_holder()) && | |
| 1478 is_alive->do_object_b(cichk_oop->holder_klass())) { | |
| 1479 // The oop should be kept alive | |
| 1480 keep_alive->do_oop(root); | |
| 1481 return false; | |
| 1482 } | |
| 1483 } | |
|
989
148e5441d916
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changeset
|
1484 // If ScavengeRootsInCode is true, an nmethod might be unloaded |
|
148e5441d916
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931
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changeset
|
1485 // simply because one of its constant oops has gone dead. |
|
148e5441d916
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diff
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|
1486 // No actual classes need to be unloaded in order for this to occur. |
|
148e5441d916
6863023: need non-perm oops in code cache for JSR 292
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diff
changeset
|
1487 assert(unloading_occurred || ScavengeRootsInCode, "Inconsistency in unloading"); |
| 0 | 1488 make_unloaded(is_alive, obj); |
| 1489 return true; | |
| 1490 } | |
| 1491 | |
| 1492 // ------------------------------------------------------------------ | |
| 1493 // post_compiled_method_load_event | |
| 1494 // new method for install_code() path | |
| 1495 // Transfer information from compilation to jvmti | |
| 1496 void nmethod::post_compiled_method_load_event() { | |
| 1497 | |
| 1498 methodOop moop = method(); | |
| 1499 HS_DTRACE_PROBE8(hotspot, compiled__method__load, | |
| 1500 moop->klass_name()->bytes(), | |
| 1501 moop->klass_name()->utf8_length(), | |
| 1502 moop->name()->bytes(), | |
| 1503 moop->name()->utf8_length(), | |
| 1504 moop->signature()->bytes(), | |
| 1505 moop->signature()->utf8_length(), | |
| 1748 | 1506 insts_begin(), insts_size()); |
| 0 | 1507 |
|
1616
38e8278318ca
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|
1508 if (JvmtiExport::should_post_compiled_method_load() || |
|
38e8278318ca
6656830: assert((*p)->is_oop(),"expected an oop while scanning weak refs")
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diff
changeset
|
1509 JvmtiExport::should_post_compiled_method_unload()) { |
|
38e8278318ca
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|
1510 get_and_cache_jmethod_id(); |
|
38e8278318ca
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|
1511 } |
|
38e8278318ca
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|
1512 |
| 0 | 1513 if (JvmtiExport::should_post_compiled_method_load()) { |
|
2195
bf8517f4e4d0
6766644: Redefinition of compiled method fails with assertion "Can not load classes with the Compiler thread"
kamg
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diff
changeset
|
1514 // Let the Service thread (which is a real Java thread) post the event |
|
bf8517f4e4d0
6766644: Redefinition of compiled method fails with assertion "Can not load classes with the Compiler thread"
kamg
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diff
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|
1515 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"
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2177
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changeset
|
1516 JvmtiDeferredEventQueue::enqueue( |
|
bf8517f4e4d0
6766644: Redefinition of compiled method fails with assertion "Can not load classes with the Compiler thread"
kamg
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2177
diff
changeset
|
1517 JvmtiDeferredEvent::compiled_method_load_event(this)); |
| 0 | 1518 } |
| 1519 } | |
| 1520 | |
|
1616
38e8278318ca
6656830: assert((*p)->is_oop(),"expected an oop while scanning weak refs")
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diff
changeset
|
1521 jmethodID nmethod::get_and_cache_jmethod_id() { |
|
38e8278318ca
6656830: assert((*p)->is_oop(),"expected an oop while scanning weak refs")
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parents:
1602
diff
changeset
|
1522 if (_jmethod_id == NULL) { |
|
38e8278318ca
6656830: assert((*p)->is_oop(),"expected an oop while scanning weak refs")
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parents:
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diff
changeset
|
1523 // Cache the jmethod_id since it can no longer be looked up once the |
|
38e8278318ca
6656830: assert((*p)->is_oop(),"expected an oop while scanning weak refs")
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parents:
1602
diff
changeset
|
1524 // method itself has been marked for unloading. |
|
38e8278318ca
6656830: assert((*p)->is_oop(),"expected an oop while scanning weak refs")
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parents:
1602
diff
changeset
|
1525 _jmethod_id = method()->jmethod_id(); |
|
38e8278318ca
6656830: assert((*p)->is_oop(),"expected an oop while scanning weak refs")
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|
1526 } |
|
38e8278318ca
6656830: assert((*p)->is_oop(),"expected an oop while scanning weak refs")
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parents:
1602
diff
changeset
|
1527 return _jmethod_id; |
|
38e8278318ca
6656830: assert((*p)->is_oop(),"expected an oop while scanning weak refs")
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parents:
1602
diff
changeset
|
1528 } |
|
38e8278318ca
6656830: assert((*p)->is_oop(),"expected an oop while scanning weak refs")
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parents:
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diff
changeset
|
1529 |
| 0 | 1530 void nmethod::post_compiled_method_unload() { |
|
1577
852d0157c696
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parents:
1563
diff
changeset
|
1531 if (unload_reported()) { |
|
852d0157c696
6956931: assert(SafepointSynchronize::is_at_safepoint()) failed: must be executed at a safepoint
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parents:
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diff
changeset
|
1532 // During unloading we transition to unloaded and then to zombie |
|
852d0157c696
6956931: assert(SafepointSynchronize::is_at_safepoint()) failed: must be executed at a safepoint
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parents:
1563
diff
changeset
|
1533 // and the unloading is reported during the first transition. |
|
852d0157c696
6956931: assert(SafepointSynchronize::is_at_safepoint()) failed: must be executed at a safepoint
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parents:
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diff
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|
1534 return; |
|
852d0157c696
6956931: assert(SafepointSynchronize::is_at_safepoint()) failed: must be executed at a safepoint
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parents:
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diff
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|
1535 } |
|
852d0157c696
6956931: assert(SafepointSynchronize::is_at_safepoint()) failed: must be executed at a safepoint
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parents:
1563
diff
changeset
|
1536 |
| 0 | 1537 assert(_method != NULL && !is_unloaded(), "just checking"); |
| 1538 DTRACE_METHOD_UNLOAD_PROBE(method()); | |
| 1539 | |
| 1540 // 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
|
1541 // 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
|
1542 // 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
|
1543 // 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
|
1544 // 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
|
1545 // 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
|
1546 // 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
|
1547 // ref will have been cleared. |
|
38e8278318ca
6656830: assert((*p)->is_oop(),"expected an oop while scanning weak refs")
never
parents:
1602
diff
changeset
|
1548 if (_jmethod_id != NULL && JvmtiExport::should_post_compiled_method_unload()) { |
| 0 | 1549 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
|
1550 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
|
1551 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
|
1552 _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
|
1553 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
|
1554 // 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
|
1555 // 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
|
1556 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
|
1557 } else { |
|
bf8517f4e4d0
6766644: Redefinition of compiled method fails with assertion "Can not load classes with the Compiler thread"
kamg
parents:
2177
diff
changeset
|
1558 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
|
1559 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
|
1560 } |
| 0 | 1561 } |
| 1562 | |
| 1563 // The JVMTI CompiledMethodUnload event can be enabled or disabled at | |
| 1564 // any time. As the nmethod is being unloaded now we mark it has | |
| 1565 // having the unload event reported - this will ensure that we don't | |
| 1566 // attempt to report the event in the unlikely scenario where the | |
| 1567 // event is enabled at the time the nmethod is made a zombie. | |
| 1568 set_unload_reported(); | |
| 1569 } | |
| 1570 | |
| 1571 // This is called at the end of the strong tracing/marking phase of a | |
| 1572 // GC to unload an nmethod if it contains otherwise unreachable | |
| 1573 // oops. | |
| 1574 | |
| 1575 void nmethod::do_unloading(BoolObjectClosure* is_alive, | |
| 1576 OopClosure* keep_alive, bool unloading_occurred) { | |
| 1577 // Make sure the oop's ready to receive visitors | |
| 1578 assert(!is_zombie() && !is_unloaded(), | |
| 1579 "should not call follow on zombie or unloaded nmethod"); | |
| 1580 | |
| 1581 // If the method is not entrant then a JMP is plastered over the | |
| 1582 // first few bytes. If an oop in the old code was there, that oop | |
| 1583 // should not get GC'd. Skip the first few bytes of oops on | |
| 1584 // not-entrant methods. | |
| 1585 address low_boundary = verified_entry_point(); | |
| 1586 if (is_not_entrant()) { | |
| 1587 low_boundary += NativeJump::instruction_size; | |
| 1588 // %%% Note: On SPARC we patch only a 4-byte trap, not a full NativeJump. | |
| 1589 // (See comment above.) | |
| 1590 } | |
| 1591 | |
| 1592 // The RedefineClasses() API can cause the class unloading invariant | |
| 1593 // to no longer be true. See jvmtiExport.hpp for details. | |
| 1594 // Also, leave a debugging breadcrumb in local flag. | |
| 1595 bool a_class_was_redefined = JvmtiExport::has_redefined_a_class(); | |
| 1596 if (a_class_was_redefined) { | |
| 1597 // This set of the unloading_occurred flag is done before the | |
| 1598 // call to post_compiled_method_unload() so that the unloading | |
| 1599 // of this nmethod is reported. | |
| 1600 unloading_occurred = true; | |
| 1601 } | |
| 1602 | |
| 1603 // Follow methodOop | |
| 1604 if (can_unload(is_alive, keep_alive, (oop*)&_method, unloading_occurred)) { | |
| 1605 return; | |
| 1606 } | |
| 1607 | |
|
3683
345c3bbf9c3c
store RiCompiledMethod in nmethod and:
Lukas Stadler <lukas.stadler@jku.at>
parents:
3464
diff
changeset
|
1608 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
|
1609 return; |
|
345c3bbf9c3c
store RiCompiledMethod in nmethod and:
Lukas Stadler <lukas.stadler@jku.at>
parents:
3464
diff
changeset
|
1610 } |
|
345c3bbf9c3c
store RiCompiledMethod in nmethod and:
Lukas Stadler <lukas.stadler@jku.at>
parents:
3464
diff
changeset
|
1611 |
| 0 | 1612 // Exception cache |
| 1613 ExceptionCache* ec = exception_cache(); | |
| 1614 while (ec != NULL) { | |
| 1615 oop* ex_addr = (oop*)ec->exception_type_addr(); | |
| 1616 oop ex = *ex_addr; | |
| 1617 ExceptionCache* next_ec = ec->next(); | |
| 1618 if (ex != NULL && !is_alive->do_object_b(ex)) { | |
| 1619 assert(!ex->is_compiledICHolder(), "Possible error here"); | |
| 1620 remove_from_exception_cache(ec); | |
| 1621 } | |
| 1622 ec = next_ec; | |
| 1623 } | |
| 1624 | |
| 1625 // If class unloading occurred we first iterate over all inline caches and | |
| 1626 // clear ICs where the cached oop is referring to an unloaded klass or method. | |
| 1627 // The remaining live cached oops will be traversed in the relocInfo::oop_type | |
| 1628 // iteration below. | |
| 1629 if (unloading_occurred) { | |
| 1630 RelocIterator iter(this, low_boundary); | |
| 1631 while(iter.next()) { | |
| 1632 if (iter.type() == relocInfo::virtual_call_type) { | |
| 1633 CompiledIC *ic = CompiledIC_at(iter.reloc()); | |
| 1634 oop ic_oop = ic->cached_oop(); | |
| 1635 if (ic_oop != NULL && !is_alive->do_object_b(ic_oop)) { | |
| 1636 // The only exception is compiledICHolder oops which may | |
| 1637 // yet be marked below. (We check this further below). | |
| 1638 if (ic_oop->is_compiledICHolder()) { | |
| 1639 compiledICHolderOop cichk_oop = compiledICHolderOop(ic_oop); | |
| 1640 if (is_alive->do_object_b( | |
| 1641 cichk_oop->holder_method()->method_holder()) && | |
| 1642 is_alive->do_object_b(cichk_oop->holder_klass())) { | |
| 1643 continue; | |
| 1644 } | |
| 1645 } | |
| 1646 ic->set_to_clean(); | |
|
1489
cff162798819
6888953: some calls to function-like macros are missing semicolons
jcoomes
parents:
1378
diff
changeset
|
1647 assert(ic->cached_oop() == NULL, |
|
cff162798819
6888953: some calls to function-like macros are missing semicolons
jcoomes
parents:
1378
diff
changeset
|
1648 "cached oop in IC should be cleared"); |
| 0 | 1649 } |
| 1650 } | |
| 1651 } | |
| 1652 } | |
| 1653 | |
| 1654 // Compiled code | |
| 1655 RelocIterator iter(this, low_boundary); | |
| 1656 while (iter.next()) { | |
| 1657 if (iter.type() == relocInfo::oop_type) { | |
| 1658 oop_Relocation* r = iter.oop_reloc(); | |
| 1659 // In this loop, we must only traverse those oops directly embedded in | |
| 1660 // the code. Other oops (oop_index>0) are seen as part of scopes_oops. | |
| 1661 assert(1 == (r->oop_is_immediate()) + | |
| 1662 (r->oop_addr() >= oops_begin() && r->oop_addr() < oops_end()), | |
| 1663 "oop must be found in exactly one place"); | |
| 1664 if (r->oop_is_immediate() && r->oop_value() != NULL) { | |
| 1665 if (can_unload(is_alive, keep_alive, r->oop_addr(), unloading_occurred)) { | |
| 1666 return; | |
| 1667 } | |
| 1668 } | |
| 1669 } | |
| 1670 } | |
| 1671 | |
| 1672 | |
| 1673 // Scopes | |
| 1674 for (oop* p = oops_begin(); p < oops_end(); p++) { | |
| 1675 if (*p == Universe::non_oop_word()) continue; // skip non-oops | |
| 1676 if (can_unload(is_alive, keep_alive, p, unloading_occurred)) { | |
| 1677 return; | |
| 1678 } | |
| 1679 } | |
| 1680 | |
| 1681 #ifndef PRODUCT | |
| 1682 // This nmethod was not unloaded; check below that all CompiledICs | |
| 1683 // refer to marked oops. | |
| 1684 { | |
| 1685 RelocIterator iter(this, low_boundary); | |
| 1686 while (iter.next()) { | |
| 1687 if (iter.type() == relocInfo::virtual_call_type) { | |
| 1688 CompiledIC *ic = CompiledIC_at(iter.reloc()); | |
| 1689 oop ic_oop = ic->cached_oop(); | |
| 1690 assert(ic_oop == NULL || is_alive->do_object_b(ic_oop), | |
| 1691 "Found unmarked ic_oop in reachable nmethod"); | |
| 1692 } | |
| 1693 } | |
| 1694 } | |
| 1695 #endif // !PRODUCT | |
| 1696 } | |
| 1697 | |
| 941 | 1698 // This method is called twice during GC -- once while |
| 1699 // tracing the "active" nmethods on thread stacks during | |
| 1700 // the (strong) marking phase, and then again when walking | |
| 1701 // the code cache contents during the weak roots processing | |
| 1702 // 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
|
1703 // 'do_strong_roots_only' flag, which is true in the first |
| 941 | 1704 // case. We want to walk the weak roots in the nmethod |
| 1705 // only in the second case. The weak roots in the nmethod | |
| 1706 // are the oops in the ExceptionCache and the InlineCache | |
| 1707 // oops. | |
|
994
753cf9794df9
6885169: merge of 4957990 and 6863023 causes conflict on do_nmethods
jrose
parents:
993
diff
changeset
|
1708 void nmethod::oops_do(OopClosure* f, bool do_strong_roots_only) { |
| 0 | 1709 // make sure the oops ready to receive visitors |
| 1710 assert(!is_zombie() && !is_unloaded(), | |
| 1711 "should not call follow on zombie or unloaded nmethod"); | |
| 1712 | |
| 1713 // If the method is not entrant or zombie then a JMP is plastered over the | |
| 1714 // first few bytes. If an oop in the old code was there, that oop | |
| 1715 // should not get GC'd. Skip the first few bytes of oops on | |
| 1716 // not-entrant methods. | |
| 1717 address low_boundary = verified_entry_point(); | |
| 1718 if (is_not_entrant()) { | |
| 1719 low_boundary += NativeJump::instruction_size; | |
| 1720 // %%% Note: On SPARC we patch only a 4-byte trap, not a full NativeJump. | |
| 1721 // (See comment above.) | |
| 1722 } | |
| 1723 | |
| 1724 // Compiled code | |
| 1725 f->do_oop((oop*) &_method); | |
|
3683
345c3bbf9c3c
store RiCompiledMethod in nmethod and:
Lukas Stadler <lukas.stadler@jku.at>
parents:
3464
diff
changeset
|
1726 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
|
1727 if (!do_strong_roots_only) { |
| 941 | 1728 // weak roots processing phase -- update ExceptionCache oops |
| 1729 ExceptionCache* ec = exception_cache(); | |
| 1730 while(ec != NULL) { | |
| 1731 f->do_oop((oop*)ec->exception_type_addr()); | |
| 1732 ec = ec->next(); | |
| 1733 } | |
| 1734 } // Else strong roots phase -- skip oops in ExceptionCache | |
| 0 | 1735 |
| 1736 RelocIterator iter(this, low_boundary); | |
| 941 | 1737 |
| 0 | 1738 while (iter.next()) { |
| 1739 if (iter.type() == relocInfo::oop_type ) { | |
| 1740 oop_Relocation* r = iter.oop_reloc(); | |
| 1741 // In this loop, we must only follow those oops directly embedded in | |
| 1742 // the code. Other oops (oop_index>0) are seen as part of scopes_oops. | |
| 941 | 1743 assert(1 == (r->oop_is_immediate()) + |
| 1744 (r->oop_addr() >= oops_begin() && r->oop_addr() < oops_end()), | |
| 1745 "oop must be found in exactly one place"); | |
| 0 | 1746 if (r->oop_is_immediate() && r->oop_value() != NULL) { |
| 1747 f->do_oop(r->oop_addr()); | |
| 1748 } | |
| 1749 } | |
| 1750 } | |
| 1751 | |
| 1752 // Scopes | |
|
989
148e5441d916
6863023: need non-perm oops in code cache for JSR 292
jrose
parents:
931
diff
changeset
|
1753 // This includes oop constants not inlined in the code stream. |
| 0 | 1754 for (oop* p = oops_begin(); p < oops_end(); p++) { |
| 1755 if (*p == Universe::non_oop_word()) continue; // skip non-oops | |
| 1756 f->do_oop(p); | |
| 1757 } | |
| 1758 } | |
| 1759 | |
|
989
148e5441d916
6863023: need non-perm oops in code cache for JSR 292
jrose
parents:
931
diff
changeset
|
1760 #define NMETHOD_SENTINEL ((nmethod*)badAddress) |
|
148e5441d916
6863023: need non-perm oops in code cache for JSR 292
jrose
parents:
931
diff
changeset
|
1761 |
|
148e5441d916
6863023: need non-perm oops in code cache for JSR 292
jrose
parents:
931
diff
changeset
|
1762 nmethod* volatile nmethod::_oops_do_mark_nmethods; |
|
148e5441d916
6863023: need non-perm oops in code cache for JSR 292
jrose
parents:
931
diff
changeset
|
1763 |
|
148e5441d916
6863023: need non-perm oops in code cache for JSR 292
jrose
parents:
931
diff
changeset
|
1764 // An nmethod is "marked" if its _mark_link is set non-null. |
|
148e5441d916
6863023: need non-perm oops in code cache for JSR 292
jrose
parents:
931
diff
changeset
|
1765 // Even if it is the end of the linked list, it will have a non-null link value, |
|
148e5441d916
6863023: need non-perm oops in code cache for JSR 292
jrose
parents:
931
diff
changeset
|
1766 // as long as it is on the list. |
|
148e5441d916
6863023: need non-perm oops in code cache for JSR 292
jrose
parents:
931
diff
changeset
|
1767 // This code must be MP safe, because it is used from parallel GC passes. |
|
148e5441d916
6863023: need non-perm oops in code cache for JSR 292
jrose
parents:
931
diff
changeset
|
1768 bool nmethod::test_set_oops_do_mark() { |
|
148e5441d916
6863023: need non-perm oops in code cache for JSR 292
jrose
parents:
931
diff
changeset
|
1769 assert(nmethod::oops_do_marking_is_active(), "oops_do_marking_prologue must be called"); |
|
148e5441d916
6863023: need non-perm oops in code cache for JSR 292
jrose
parents:
931
diff
changeset
|
1770 nmethod* observed_mark_link = _oops_do_mark_link; |
|
148e5441d916
6863023: need non-perm oops in code cache for JSR 292
jrose
parents:
931
diff
changeset
|
1771 if (observed_mark_link == NULL) { |
|
148e5441d916
6863023: need non-perm oops in code cache for JSR 292
jrose
parents:
931
diff
changeset
|
1772 // Claim this nmethod for this thread to mark. |
|
148e5441d916
6863023: need non-perm oops in code cache for JSR 292
jrose
parents:
931
diff
changeset
|
1773 observed_mark_link = (nmethod*) |
|
148e5441d916
6863023: need non-perm oops in code cache for JSR 292
jrose
parents:
931
diff
changeset
|
1774 Atomic::cmpxchg_ptr(NMETHOD_SENTINEL, &_oops_do_mark_link, NULL); |
|
148e5441d916
6863023: need non-perm oops in code cache for JSR 292
jrose
parents:
931
diff
changeset
|
1775 if (observed_mark_link == NULL) { |
|
148e5441d916
6863023: need non-perm oops in code cache for JSR 292
jrose
parents:
931
diff
changeset
|
1776 |
|
148e5441d916
6863023: need non-perm oops in code cache for JSR 292
jrose
parents:
931
diff
changeset
|
1777 // Atomically append this nmethod (now claimed) to the head of the list: |
|
148e5441d916
6863023: need non-perm oops in code cache for JSR 292
jrose
parents:
931
diff
changeset
|
1778 nmethod* observed_mark_nmethods = _oops_do_mark_nmethods; |
|
148e5441d916
6863023: need non-perm oops in code cache for JSR 292
jrose
parents:
931
diff
changeset
|
1779 for (;;) { |
|
148e5441d916
6863023: need non-perm oops in code cache for JSR 292
jrose
parents:
931
diff
changeset
|
1780 nmethod* required_mark_nmethods = observed_mark_nmethods; |
|
148e5441d916
6863023: need non-perm oops in code cache for JSR 292
jrose
parents:
931
diff
changeset
|
1781 _oops_do_mark_link = required_mark_nmethods; |
|
148e5441d916
6863023: need non-perm oops in code cache for JSR 292
jrose
parents:
931
diff
changeset
|
1782 observed_mark_nmethods = (nmethod*) |
|
148e5441d916
6863023: need non-perm oops in code cache for JSR 292
jrose
parents:
931
diff
changeset
|
1783 Atomic::cmpxchg_ptr(this, &_oops_do_mark_nmethods, required_mark_nmethods); |
|
148e5441d916
6863023: need non-perm oops in code cache for JSR 292
jrose
parents:
931
diff
changeset
|
1784 if (observed_mark_nmethods == required_mark_nmethods) |
|
148e5441d916
6863023: need non-perm oops in code cache for JSR 292
jrose
parents:
931
diff
changeset
|
1785 break; |
|
148e5441d916
6863023: need non-perm oops in code cache for JSR 292
jrose
parents:
931
diff
changeset
|
1786 } |
|
148e5441d916
6863023: need non-perm oops in code cache for JSR 292
jrose
parents:
931
diff
changeset
|
1787 // Mark was clear when we first saw this guy. |
|
2405
3d58a4983660
7022998: JSR 292 recursive method handle calls inline themselves infinitely
twisti
parents:
2376
diff
changeset
|
1788 NOT_PRODUCT(if (TraceScavenge) print_on(tty, "oops_do, mark")); |
|
989
148e5441d916
6863023: need non-perm oops in code cache for JSR 292
jrose
parents:
931
diff
changeset
|
1789 return false; |
|
148e5441d916
6863023: need non-perm oops in code cache for JSR 292
jrose
parents:
931
diff
changeset
|
1790 } |
|
148e5441d916
6863023: need non-perm oops in code cache for JSR 292
jrose
parents:
931
diff
changeset
|
1791 } |
|
148e5441d916
6863023: need non-perm oops in code cache for JSR 292
jrose
parents:
931
diff
changeset
|
1792 // On fall through, another racing thread marked this nmethod before we did. |
|
148e5441d916
6863023: need non-perm oops in code cache for JSR 292
jrose
parents:
931
diff
changeset
|
1793 return true; |
|
148e5441d916
6863023: need non-perm oops in code cache for JSR 292
jrose
parents:
931
diff
changeset
|
1794 } |
|
148e5441d916
6863023: need non-perm oops in code cache for JSR 292
jrose
parents:
931
diff
changeset
|
1795 |
|
148e5441d916
6863023: need non-perm oops in code cache for JSR 292
jrose
parents:
931
diff
changeset
|
1796 void nmethod::oops_do_marking_prologue() { |
|
148e5441d916
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1797 NOT_PRODUCT(if (TraceScavenge) tty->print_cr("[oops_do_marking_prologue")); |
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1798 assert(_oops_do_mark_nmethods == NULL, "must not call oops_do_marking_prologue twice in a row"); |
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1799 // We use cmpxchg_ptr instead of regular assignment here because the user |
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1800 // may fork a bunch of threads, and we need them all to see the same state. |
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1801 void* observed = Atomic::cmpxchg_ptr(NMETHOD_SENTINEL, &_oops_do_mark_nmethods, NULL); |
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1802 guarantee(observed == NULL, "no races in this sequential code"); |
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1803 } |
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1804 |
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1805 void nmethod::oops_do_marking_epilogue() { |
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1806 assert(_oops_do_mark_nmethods != NULL, "must not call oops_do_marking_epilogue twice in a row"); |
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1807 nmethod* cur = _oops_do_mark_nmethods; |
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1808 while (cur != NMETHOD_SENTINEL) { |
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1809 assert(cur != NULL, "not NULL-terminated"); |
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1810 nmethod* next = cur->_oops_do_mark_link; |
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1811 cur->_oops_do_mark_link = NULL; |
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1812 cur->fix_oop_relocations(); |
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1813 NOT_PRODUCT(if (TraceScavenge) cur->print_on(tty, "oops_do, unmark")); |
|
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1814 cur = next; |
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1815 } |
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1816 void* required = _oops_do_mark_nmethods; |
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1817 void* observed = Atomic::cmpxchg_ptr(NULL, &_oops_do_mark_nmethods, required); |
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1818 guarantee(observed == required, "no races in this sequential code"); |
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1819 NOT_PRODUCT(if (TraceScavenge) tty->print_cr("oops_do_marking_epilogue]")); |
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1820 } |
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1821 |
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1822 class DetectScavengeRoot: public OopClosure { |
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1823 bool _detected_scavenge_root; |
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1824 public: |
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1825 DetectScavengeRoot() : _detected_scavenge_root(false) |
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1826 { NOT_PRODUCT(_print_nm = NULL); } |
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1827 bool detected_scavenge_root() { return _detected_scavenge_root; } |
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1828 virtual void do_oop(oop* p) { |
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1829 if ((*p) != NULL && (*p)->is_scavengable()) { |
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1830 NOT_PRODUCT(maybe_print(p)); |
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1831 _detected_scavenge_root = true; |
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1832 } |
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1833 } |
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1834 virtual void do_oop(narrowOop* p) { ShouldNotReachHere(); } |
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1835 |
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1836 #ifndef PRODUCT |
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1837 nmethod* _print_nm; |
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1838 void maybe_print(oop* p) { |
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1839 if (_print_nm == NULL) return; |
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1840 if (!_detected_scavenge_root) _print_nm->print_on(tty, "new scavenge root"); |
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1841 tty->print_cr(""PTR_FORMAT"[offset=%d] detected scavengable oop "PTR_FORMAT" (found at "PTR_FORMAT")", |
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1842 _print_nm, (int)((intptr_t)p - (intptr_t)_print_nm), |
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1843 (intptr_t)(*p), (intptr_t)p); |
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1844 (*p)->print(); |
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1845 } |
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1846 #endif //PRODUCT |
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1847 }; |
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1848 |
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1849 bool nmethod::detect_scavenge_root_oops() { |
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1850 DetectScavengeRoot detect_scavenge_root; |
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1851 NOT_PRODUCT(if (TraceScavenge) detect_scavenge_root._print_nm = this); |
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1852 oops_do(&detect_scavenge_root); |
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1853 return detect_scavenge_root.detected_scavenge_root(); |
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1854 } |
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1855 |
| 0 | 1856 // Method that knows how to preserve outgoing arguments at call. This method must be |
| 1857 // called with a frame corresponding to a Java invoke | |
| 1858 void nmethod::preserve_callee_argument_oops(frame fr, const RegisterMap *reg_map, OopClosure* f) { | |
| 1692 | 1859 #ifndef SHARK |
| 0 | 1860 if (!method()->is_native()) { |
| 1861 SimpleScopeDesc ssd(this, fr.pc()); | |
| 2142 | 1862 Bytecode_invoke call(ssd.method(), ssd.bci()); |
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1863 // compiled invokedynamic call sites have an implicit receiver at |
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1864 // resolution time, so make sure it gets GC'ed. |
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1865 bool has_receiver = !call.is_invokestatic(); |
|
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1866 Symbol* signature = call.signature(); |
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1867 fr.oops_compiled_arguments_do(signature, has_receiver, reg_map, f); |
| 0 | 1868 } |
| 1692 | 1869 #endif // !SHARK |
| 0 | 1870 } |
| 1871 | |
| 1872 | |
| 1873 oop nmethod::embeddedOop_at(u_char* p) { | |
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1874 RelocIterator iter(this, p, p + 1); |
| 0 | 1875 while (iter.next()) |
| 1876 if (iter.type() == relocInfo::oop_type) { | |
| 1877 return iter.oop_reloc()->oop_value(); | |
| 1878 } | |
| 1879 return NULL; | |
| 1880 } | |
| 1881 | |
| 1882 | |
| 1883 inline bool includes(void* p, void* from, void* to) { | |
| 1884 return from <= p && p < to; | |
| 1885 } | |
| 1886 | |
| 1887 | |
| 1888 void nmethod::copy_scopes_pcs(PcDesc* pcs, int count) { | |
| 1889 assert(count >= 2, "must be sentinel values, at least"); | |
| 1890 | |
| 1891 #ifdef ASSERT | |
| 1892 // must be sorted and unique; we do a binary search in find_pc_desc() | |
| 1893 int prev_offset = pcs[0].pc_offset(); | |
| 1894 assert(prev_offset == PcDesc::lower_offset_limit, | |
| 1895 "must start with a sentinel"); | |
| 1896 for (int i = 1; i < count; i++) { | |
| 1897 int this_offset = pcs[i].pc_offset(); | |
| 1898 assert(this_offset > prev_offset, "offsets must be sorted"); | |
| 1899 prev_offset = this_offset; | |
| 1900 } | |
| 1901 assert(prev_offset == PcDesc::upper_offset_limit, | |
| 1902 "must end with a sentinel"); | |
| 1903 #endif //ASSERT | |
| 1904 | |
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1905 // Search for MethodHandle invokes and tag the nmethod. |
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1906 for (int i = 0; i < count; i++) { |
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1907 if (pcs[i].is_method_handle_invoke()) { |
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1908 set_has_method_handle_invokes(true); |
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1909 break; |
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1910 } |
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1911 } |
|
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1912 assert(has_method_handle_invokes() == (_deoptimize_mh_offset != -1), "must have deopt mh handler"); |
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1913 |
| 0 | 1914 int size = count * sizeof(PcDesc); |
| 1915 assert(scopes_pcs_size() >= size, "oob"); | |
| 1916 memcpy(scopes_pcs_begin(), pcs, size); | |
| 1917 | |
| 1918 // Adjust the final sentinel downward. | |
| 1919 PcDesc* last_pc = &scopes_pcs_begin()[count-1]; | |
| 1920 assert(last_pc->pc_offset() == PcDesc::upper_offset_limit, "sanity"); | |
| 1748 | 1921 last_pc->set_pc_offset(content_size() + 1); |
| 0 | 1922 for (; last_pc + 1 < scopes_pcs_end(); last_pc += 1) { |
| 1923 // Fill any rounding gaps with copies of the last record. | |
| 1924 last_pc[1] = last_pc[0]; | |
| 1925 } | |
| 1926 // The following assert could fail if sizeof(PcDesc) is not | |
| 1927 // an integral multiple of oopSize (the rounding term). | |
| 1928 // If it fails, change the logic to always allocate a multiple | |
| 1929 // of sizeof(PcDesc), and fill unused words with copies of *last_pc. | |
| 1930 assert(last_pc + 1 == scopes_pcs_end(), "must match exactly"); | |
| 1931 } | |
| 1932 | |
| 1933 void nmethod::copy_scopes_data(u_char* buffer, int size) { | |
| 1934 assert(scopes_data_size() >= size, "oob"); | |
| 1935 memcpy(scopes_data_begin(), buffer, size); | |
| 1936 } | |
| 1937 | |
| 1938 | |
| 1939 #ifdef ASSERT | |
| 1940 static PcDesc* linear_search(nmethod* nm, int pc_offset, bool approximate) { | |
| 1941 PcDesc* lower = nm->scopes_pcs_begin(); | |
| 1942 PcDesc* upper = nm->scopes_pcs_end(); | |
| 1943 lower += 1; // exclude initial sentinel | |
| 1944 PcDesc* res = NULL; | |
| 1945 for (PcDesc* p = lower; p < upper; p++) { | |
| 1946 NOT_PRODUCT(--nmethod_stats.pc_desc_tests); // don't count this call to match_desc | |
| 1947 if (match_desc(p, pc_offset, approximate)) { | |
| 1948 if (res == NULL) | |
| 1949 res = p; | |
| 1950 else | |
| 1951 res = (PcDesc*) badAddress; | |
| 1952 } | |
| 1953 } | |
| 1954 return res; | |
| 1955 } | |
| 1956 #endif | |
| 1957 | |
| 1958 | |
| 1959 // Finds a PcDesc with real-pc equal to "pc" | |
| 1960 PcDesc* nmethod::find_pc_desc_internal(address pc, bool approximate) { | |
| 1748 | 1961 address base_address = code_begin(); |
| 0 | 1962 if ((pc < base_address) || |
| 1963 (pc - base_address) >= (ptrdiff_t) PcDesc::upper_offset_limit) { | |
| 1964 return NULL; // PC is wildly out of range | |
| 1965 } | |
| 1966 int pc_offset = (int) (pc - base_address); | |
| 1967 | |
| 1968 // Check the PcDesc cache if it contains the desired PcDesc | |
| 1969 // (This as an almost 100% hit rate.) | |
| 1970 PcDesc* res = _pc_desc_cache.find_pc_desc(pc_offset, approximate); | |
| 1971 if (res != NULL) { | |
| 1972 assert(res == linear_search(this, pc_offset, approximate), "cache ok"); | |
| 1973 return res; | |
| 1974 } | |
| 1975 | |
| 1976 // Fallback algorithm: quasi-linear search for the PcDesc | |
| 1977 // Find the last pc_offset less than the given offset. | |
| 1978 // The successor must be the required match, if there is a match at all. | |
| 1979 // (Use a fixed radix to avoid expensive affine pointer arithmetic.) | |
| 1980 PcDesc* lower = scopes_pcs_begin(); | |
| 1981 PcDesc* upper = scopes_pcs_end(); | |
| 1982 upper -= 1; // exclude final sentinel | |
| 1983 if (lower >= upper) return NULL; // native method; no PcDescs at all | |
| 1984 | |
| 1985 #define assert_LU_OK \ | |
| 1986 /* invariant on lower..upper during the following search: */ \ | |
| 1987 assert(lower->pc_offset() < pc_offset, "sanity"); \ | |
| 1988 assert(upper->pc_offset() >= pc_offset, "sanity") | |
| 1989 assert_LU_OK; | |
| 1990 | |
| 1991 // Use the last successful return as a split point. | |
| 1992 PcDesc* mid = _pc_desc_cache.last_pc_desc(); | |
| 1993 NOT_PRODUCT(++nmethod_stats.pc_desc_searches); | |
| 1994 if (mid->pc_offset() < pc_offset) { | |
| 1995 lower = mid; | |
| 1996 } else { | |
| 1997 upper = mid; | |
| 1998 } | |
| 1999 | |
| 2000 // Take giant steps at first (4096, then 256, then 16, then 1) | |
| 2001 const int LOG2_RADIX = 4 /*smaller steps in debug mode:*/ debug_only(-1); | |
| 2002 const int RADIX = (1 << LOG2_RADIX); | |
| 2003 for (int step = (1 << (LOG2_RADIX*3)); step > 1; step >>= LOG2_RADIX) { | |
| 2004 while ((mid = lower + step) < upper) { | |
| 2005 assert_LU_OK; | |
| 2006 NOT_PRODUCT(++nmethod_stats.pc_desc_searches); | |
| 2007 if (mid->pc_offset() < pc_offset) { | |
| 2008 lower = mid; | |
| 2009 } else { | |
| 2010 upper = mid; | |
| 2011 break; | |
| 2012 } | |
| 2013 } | |
| 2014 assert_LU_OK; | |
| 2015 } | |
| 2016 | |
| 2017 // Sneak up on the value with a linear search of length ~16. | |
| 2018 while (true) { | |
| 2019 assert_LU_OK; | |
| 2020 mid = lower + 1; | |
| 2021 NOT_PRODUCT(++nmethod_stats.pc_desc_searches); | |
| 2022 if (mid->pc_offset() < pc_offset) { | |
| 2023 lower = mid; | |
| 2024 } else { | |
| 2025 upper = mid; | |
| 2026 break; | |
| 2027 } | |
| 2028 } | |
| 2029 #undef assert_LU_OK | |
| 2030 | |
| 2031 if (match_desc(upper, pc_offset, approximate)) { | |
| 2032 assert(upper == linear_search(this, pc_offset, approximate), "search ok"); | |
| 2033 _pc_desc_cache.add_pc_desc(upper); | |
| 2034 return upper; | |
| 2035 } else { | |
| 2036 assert(NULL == linear_search(this, pc_offset, approximate), "search ok"); | |
| 2037 return NULL; | |
| 2038 } | |
| 2039 } | |
| 2040 | |
| 2041 | |
| 2042 bool nmethod::check_all_dependencies() { | |
| 2043 bool found_check = false; | |
| 2044 // wholesale check of all dependencies | |
| 2045 for (Dependencies::DepStream deps(this); deps.next(); ) { | |
| 2046 if (deps.check_dependency() != NULL) { | |
| 2047 found_check = true; | |
| 2048 NOT_DEBUG(break); | |
| 2049 } | |
| 2050 } | |
| 2051 return found_check; // tell caller if we found anything | |
| 2052 } | |
| 2053 | |
| 2054 bool nmethod::check_dependency_on(DepChange& changes) { | |
| 2055 // What has happened: | |
| 2056 // 1) a new class dependee has been added | |
| 2057 // 2) dependee and all its super classes have been marked | |
| 2058 bool found_check = false; // set true if we are upset | |
| 2059 for (Dependencies::DepStream deps(this); deps.next(); ) { | |
| 2060 // Evaluate only relevant dependencies. | |
| 2061 if (deps.spot_check_dependency_at(changes) != NULL) { | |
| 2062 found_check = true; | |
| 2063 NOT_DEBUG(break); | |
| 2064 } | |
| 2065 } | |
| 2066 return found_check; | |
| 2067 } | |
| 2068 | |
| 2069 bool nmethod::is_evol_dependent_on(klassOop dependee) { | |
| 2070 instanceKlass *dependee_ik = instanceKlass::cast(dependee); | |
| 2071 objArrayOop dependee_methods = dependee_ik->methods(); | |
| 2072 for (Dependencies::DepStream deps(this); deps.next(); ) { | |
| 2073 if (deps.type() == Dependencies::evol_method) { | |
| 2074 methodOop method = deps.method_argument(0); | |
| 2075 for (int j = 0; j < dependee_methods->length(); j++) { | |
| 2076 if ((methodOop) dependee_methods->obj_at(j) == method) { | |
| 2077 // RC_TRACE macro has an embedded ResourceMark | |
| 2078 RC_TRACE(0x01000000, | |
| 2079 ("Found evol dependency of nmethod %s.%s(%s) compile_id=%d on method %s.%s(%s)", | |
| 2080 _method->method_holder()->klass_part()->external_name(), | |
| 2081 _method->name()->as_C_string(), | |
| 2082 _method->signature()->as_C_string(), compile_id(), | |
| 2083 method->method_holder()->klass_part()->external_name(), | |
| 2084 method->name()->as_C_string(), | |
| 2085 method->signature()->as_C_string())); | |
| 2086 if (TraceDependencies || LogCompilation) | |
| 2087 deps.log_dependency(dependee); | |
| 2088 return true; | |
| 2089 } | |
| 2090 } | |
| 2091 } | |
| 2092 } | |
| 2093 return false; | |
| 2094 } | |
| 2095 | |
| 2096 // Called from mark_for_deoptimization, when dependee is invalidated. | |
| 2097 bool nmethod::is_dependent_on_method(methodOop dependee) { | |
| 2098 for (Dependencies::DepStream deps(this); deps.next(); ) { | |
| 2099 if (deps.type() != Dependencies::evol_method) | |
| 2100 continue; | |
| 2101 methodOop method = deps.method_argument(0); | |
| 2102 if (method == dependee) return true; | |
| 2103 } | |
| 2104 return false; | |
| 2105 } | |
| 2106 | |
| 2107 | |
| 2108 bool nmethod::is_patchable_at(address instr_addr) { | |
| 1748 | 2109 assert(insts_contains(instr_addr), "wrong nmethod used"); |
| 0 | 2110 if (is_zombie()) { |
| 2111 // a zombie may never be patched | |
| 2112 return false; | |
| 2113 } | |
| 2114 return true; | |
| 2115 } | |
| 2116 | |
| 2117 | |
| 2118 address nmethod::continuation_for_implicit_exception(address pc) { | |
| 2119 // Exception happened outside inline-cache check code => we are inside | |
| 2120 // an active nmethod => use cpc to determine a return address | |
| 1748 | 2121 int exception_offset = pc - code_begin(); |
| 0 | 2122 int cont_offset = ImplicitExceptionTable(this).at( exception_offset ); |
| 2123 #ifdef ASSERT | |
| 2124 if (cont_offset == 0) { | |
| 2125 Thread* thread = ThreadLocalStorage::get_thread_slow(); | |
| 2126 ResetNoHandleMark rnm; // Might be called from LEAF/QUICK ENTRY | |
| 2127 HandleMark hm(thread); | |
| 2128 ResourceMark rm(thread); | |
| 2129 CodeBlob* cb = CodeCache::find_blob(pc); | |
| 2130 assert(cb != NULL && cb == this, ""); | |
| 2131 tty->print_cr("implicit exception happened at " INTPTR_FORMAT, pc); | |
| 2132 print(); | |
| 2133 method()->print_codes(); | |
| 2134 print_code(); | |
| 2135 print_pcs(); | |
| 2136 } | |
| 2137 #endif | |
| 1250 | 2138 if (cont_offset == 0) { |
| 2139 // Let the normal error handling report the exception | |
| 2140 return NULL; | |
| 2141 } | |
| 1748 | 2142 return code_begin() + cont_offset; |
| 0 | 2143 } |
| 2144 | |
| 2145 | |
| 2146 | |
| 2147 void nmethod_init() { | |
| 2148 // make sure you didn't forget to adjust the filler fields | |
| 2149 assert(sizeof(nmethod) % oopSize == 0, "nmethod size must be multiple of a word"); | |
| 2150 } | |
| 2151 | |
| 2152 | |
| 2153 //------------------------------------------------------------------------------------------- | |
| 2154 | |
| 2155 | |
| 2156 // QQQ might we make this work from a frame?? | |
| 2157 nmethodLocker::nmethodLocker(address pc) { | |
| 2158 CodeBlob* cb = CodeCache::find_blob(pc); | |
| 2159 guarantee(cb != NULL && cb->is_nmethod(), "bad pc for a nmethod found"); | |
| 2160 _nm = (nmethod*)cb; | |
| 2161 lock_nmethod(_nm); | |
| 2162 } | |
| 2163 | |
|
2342
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|
2164 // Only JvmtiDeferredEvent::compiled_method_unload_event() |
|
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|
2165 // should pass zombie_ok == true. |
|
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|
2166 void nmethodLocker::lock_nmethod(nmethod* nm, bool zombie_ok) { |
| 0 | 2167 if (nm == NULL) return; |
| 2168 Atomic::inc(&nm->_lock_count); | |
|
2342
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|
2169 guarantee(zombie_ok || !nm->is_zombie(), "cannot lock a zombie method"); |
| 0 | 2170 } |
| 2171 | |
| 2172 void nmethodLocker::unlock_nmethod(nmethod* nm) { | |
| 2173 if (nm == NULL) return; | |
| 2174 Atomic::dec(&nm->_lock_count); | |
| 2175 guarantee(nm->_lock_count >= 0, "unmatched nmethod lock/unlock"); | |
| 2176 } | |
| 2177 | |
| 1204 | 2178 |
| 2179 // ----------------------------------------------------------------------------- | |
| 2180 // nmethod::get_deopt_original_pc | |
| 2181 // | |
| 2182 // Return the original PC for the given PC if: | |
| 2183 // (a) the given PC belongs to a nmethod and | |
| 2184 // (b) it is a deopt PC | |
| 2185 address nmethod::get_deopt_original_pc(const frame* fr) { | |
| 2186 if (fr->cb() == NULL) return NULL; | |
| 2187 | |
| 2188 nmethod* nm = fr->cb()->as_nmethod_or_null(); | |
| 2189 if (nm != NULL && nm->is_deopt_pc(fr->pc())) | |
| 2190 return nm->get_original_pc(fr); | |
| 2191 | |
| 2192 return NULL; | |
| 0 | 2193 } |
| 2194 | |
| 2195 | |
| 2196 // ----------------------------------------------------------------------------- | |
|
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2197 // MethodHandle |
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2198 |
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2199 bool nmethod::is_method_handle_return(address return_pc) { |
|
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2200 if (!has_method_handle_invokes()) return false; |
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2201 PcDesc* pd = pc_desc_at(return_pc); |
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2202 if (pd == NULL) |
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2203 return false; |
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2204 return pd->is_method_handle_invoke(); |
|
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2205 } |
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2206 |
|
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|
2207 |
|
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|
2208 // ----------------------------------------------------------------------------- |
| 0 | 2209 // Verification |
| 2210 | |
|
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2211 class VerifyOopsClosure: public OopClosure { |
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|
2212 nmethod* _nm; |
|
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|
2213 bool _ok; |
|
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2214 public: |
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|
2215 VerifyOopsClosure(nmethod* nm) : _nm(nm), _ok(true) { } |
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2216 bool ok() { return _ok; } |
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2217 virtual void do_oop(oop* p) { |
|
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2218 if ((*p) == NULL || (*p)->is_oop()) return; |
|
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2219 if (_ok) { |
|
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2220 _nm->print_nmethod(true); |
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|
2221 _ok = false; |
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2222 } |
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2223 tty->print_cr("*** non-oop "PTR_FORMAT" found at "PTR_FORMAT" (offset %d)", |
|
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|
2224 (intptr_t)(*p), (intptr_t)p, (int)((intptr_t)p - (intptr_t)_nm)); |
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|
2225 } |
|
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|
2226 virtual void do_oop(narrowOop* p) { ShouldNotReachHere(); } |
|
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|
2227 }; |
|
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|
2228 |
| 0 | 2229 void nmethod::verify() { |
| 2230 | |
| 2231 // Hmm. OSR methods can be deopted but not marked as zombie or not_entrant | |
| 2232 // seems odd. | |
| 2233 | |
| 2234 if( is_zombie() || is_not_entrant() ) | |
| 2235 return; | |
| 2236 | |
| 2237 // Make sure all the entry points are correctly aligned for patching. | |
| 2238 NativeJump::check_verified_entry_alignment(entry_point(), verified_entry_point()); | |
| 2239 | |
| 2240 assert(method()->is_oop(), "must be valid"); | |
| 2241 | |
| 2242 ResourceMark rm; | |
| 2243 | |
| 2244 if (!CodeCache::contains(this)) { | |
|
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|
2245 fatal(err_msg("nmethod at " INTPTR_FORMAT " not in zone", this)); |
| 0 | 2246 } |
| 2247 | |
| 2248 if(is_native_method() ) | |
| 2249 return; | |
| 2250 | |
| 2251 nmethod* nm = CodeCache::find_nmethod(verified_entry_point()); | |
| 2252 if (nm != this) { | |
|
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|
2253 fatal(err_msg("findNMethod did not find this nmethod (" INTPTR_FORMAT ")", |
|
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|
2254 this)); |
| 0 | 2255 } |
| 2256 | |
| 2257 for (PcDesc* p = scopes_pcs_begin(); p < scopes_pcs_end(); p++) { | |
| 2258 if (! p->verify(this)) { | |
| 2259 tty->print_cr("\t\tin nmethod at " INTPTR_FORMAT " (pcs)", this); | |
| 2260 } | |
| 2261 } | |
| 2262 | |
|
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|
2263 VerifyOopsClosure voc(this); |
|
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|
2264 oops_do(&voc); |
|
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|
2265 assert(voc.ok(), "embedded oops must be OK"); |
|
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|
2266 verify_scavenge_root_oops(); |
|
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|
2267 |
| 0 | 2268 verify_scopes(); |
| 2269 } | |
| 2270 | |
| 2271 | |
| 2272 void nmethod::verify_interrupt_point(address call_site) { | |
| 2273 // This code does not work in release mode since | |
| 2274 // owns_lock only is available in debug mode. | |
| 2275 CompiledIC* ic = NULL; | |
| 2276 Thread *cur = Thread::current(); | |
| 2277 if (CompiledIC_lock->owner() == cur || | |
| 2278 ((cur->is_VM_thread() || cur->is_ConcurrentGC_thread()) && | |
| 2279 SafepointSynchronize::is_at_safepoint())) { | |
| 2280 ic = CompiledIC_at(call_site); | |
| 2281 CHECK_UNHANDLED_OOPS_ONLY(Thread::current()->clear_unhandled_oops()); | |
| 2282 } else { | |
| 2283 MutexLocker ml_verify (CompiledIC_lock); | |
| 2284 ic = CompiledIC_at(call_site); | |
| 2285 } | |
| 2286 PcDesc* pd = pc_desc_at(ic->end_of_call()); | |
| 2287 assert(pd != NULL, "PcDesc must exist"); | |
| 2288 for (ScopeDesc* sd = new ScopeDesc(this, pd->scope_decode_offset(), | |
|
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
|
2289 pd->obj_decode_offset(), pd->should_reexecute(), pd->rethrow_exception(), |
|
1253
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6910618: C2: Error: assert(d->is_oop(),"JVM_ArrayCopy: dst not an oop")
kvn
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1250
diff
changeset
|
2290 pd->return_oop()); |
| 0 | 2291 !sd->is_top(); sd = sd->sender()) { |
| 2292 sd->verify(); | |
| 2293 } | |
| 2294 } | |
| 2295 | |
| 2296 void nmethod::verify_scopes() { | |
| 2297 if( !method() ) return; // Runtime stubs have no scope | |
| 2298 if (method()->is_native()) return; // Ignore stub methods. | |
| 2299 // iterate through all interrupt point | |
| 2300 // and verify the debug information is valid. | |
| 2301 RelocIterator iter((nmethod*)this); | |
| 2302 while (iter.next()) { | |
| 2303 address stub = NULL; | |
| 2304 switch (iter.type()) { | |
| 2305 case relocInfo::virtual_call_type: | |
| 2306 verify_interrupt_point(iter.addr()); | |
| 2307 break; | |
| 2308 case relocInfo::opt_virtual_call_type: | |
| 2309 stub = iter.opt_virtual_call_reloc()->static_stub(); | |
| 2310 verify_interrupt_point(iter.addr()); | |
| 2311 break; | |
| 2312 case relocInfo::static_call_type: | |
| 2313 stub = iter.static_call_reloc()->static_stub(); | |
| 2314 //verify_interrupt_point(iter.addr()); | |
| 2315 break; | |
| 2316 case relocInfo::runtime_call_type: | |
| 2317 address destination = iter.reloc()->value(); | |
| 2318 // Right now there is no way to find out which entries support | |
| 2319 // an interrupt point. It would be nice if we had this | |
| 2320 // information in a table. | |
| 2321 break; | |
| 2322 } | |
|
2891
75a99b4f1c98
Rebranded C++ part from C1X to Graal.
Thomas Wuerthinger <thomas@wuerthinger.net>
parents:
2491
diff
changeset
|
2323 assert(UseGraal || stub == NULL || stub_contains(stub), "static call stub outside stub section"); |
| 0 | 2324 } |
| 2325 } | |
| 2326 | |
| 2327 | |
| 2328 // ----------------------------------------------------------------------------- | |
| 2329 // Non-product code | |
| 2330 #ifndef PRODUCT | |
| 2331 | |
|
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|
2332 class DebugScavengeRoot: public OopClosure { |
|
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|
2333 nmethod* _nm; |
|
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|
2334 bool _ok; |
|
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|
2335 public: |
|
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|
2336 DebugScavengeRoot(nmethod* nm) : _nm(nm), _ok(true) { } |
|
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|
2337 bool ok() { return _ok; } |
|
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|
2338 virtual void do_oop(oop* p) { |
|
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|
2339 if ((*p) == NULL || !(*p)->is_scavengable()) return; |
|
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|
2340 if (_ok) { |
|
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|
2341 _nm->print_nmethod(true); |
|
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|
2342 _ok = false; |
|
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|
2343 } |
|
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|
2344 tty->print_cr("*** scavengable oop "PTR_FORMAT" found at "PTR_FORMAT" (offset %d)", |
|
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|
2345 (intptr_t)(*p), (intptr_t)p, (int)((intptr_t)p - (intptr_t)_nm)); |
|
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|
2346 (*p)->print(); |
|
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|
2347 } |
|
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|
2348 virtual void do_oop(narrowOop* p) { ShouldNotReachHere(); } |
|
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|
2349 }; |
| 0 | 2350 |
|
989
148e5441d916
6863023: need non-perm oops in code cache for JSR 292
jrose
parents:
931
diff
changeset
|
2351 void nmethod::verify_scavenge_root_oops() { |
|
148e5441d916
6863023: need non-perm oops in code cache for JSR 292
jrose
parents:
931
diff
changeset
|
2352 if (!on_scavenge_root_list()) { |
|
148e5441d916
6863023: need non-perm oops in code cache for JSR 292
jrose
parents:
931
diff
changeset
|
2353 // Actually look inside, to verify the claim that it's clean. |
|
148e5441d916
6863023: need non-perm oops in code cache for JSR 292
jrose
parents:
931
diff
changeset
|
2354 DebugScavengeRoot debug_scavenge_root(this); |
|
148e5441d916
6863023: need non-perm oops in code cache for JSR 292
jrose
parents:
931
diff
changeset
|
2355 oops_do(&debug_scavenge_root); |
|
148e5441d916
6863023: need non-perm oops in code cache for JSR 292
jrose
parents:
931
diff
changeset
|
2356 if (!debug_scavenge_root.ok()) |
|
3377
2aa9ddbb9e60
7041789: 30% perf regression with c2/arm following 7017732
jmasa
parents:
2405
diff
changeset
|
2357 fatal("found an unadvertised bad scavengable oop in the code cache"); |
| 0 | 2358 } |
|
989
148e5441d916
6863023: need non-perm oops in code cache for JSR 292
jrose
parents:
931
diff
changeset
|
2359 assert(scavenge_root_not_marked(), ""); |
| 0 | 2360 } |
| 2361 | |
|
100
c7c777385a15
6667042: PrintAssembly option does not work without special plugin
jrose
parents:
30
diff
changeset
|
2362 #endif // PRODUCT |
| 0 | 2363 |
| 2364 // Printing operations | |
| 2365 | |
| 2366 void nmethod::print() const { | |
| 2367 ResourceMark rm; | |
| 2368 ttyLocker ttyl; // keep the following output all in one block | |
| 2369 | |
|
2405
3d58a4983660
7022998: JSR 292 recursive method handle calls inline themselves infinitely
twisti
parents:
2376
diff
changeset
|
2370 tty->print("Compiled method "); |
| 0 | 2371 |
| 2372 if (is_compiled_by_c1()) { | |
| 2373 tty->print("(c1) "); | |
| 2374 } else if (is_compiled_by_c2()) { | |
| 2375 tty->print("(c2) "); | |
| 1692 | 2376 } else if (is_compiled_by_shark()) { |
| 2377 tty->print("(shark) "); | |
| 0 | 2378 } else { |
| 2379 tty->print("(nm) "); | |
| 2380 } | |
| 2381 | |
|
2405
3d58a4983660
7022998: JSR 292 recursive method handle calls inline themselves infinitely
twisti
parents:
2376
diff
changeset
|
2382 print_on(tty, NULL); |
|
3d58a4983660
7022998: JSR 292 recursive method handle calls inline themselves infinitely
twisti
parents:
2376
diff
changeset
|
2383 |
| 0 | 2384 if (WizardMode) { |
| 2385 tty->print("((nmethod*) "INTPTR_FORMAT ") ", this); | |
| 2386 tty->print(" for method " INTPTR_FORMAT , (address)method()); | |
| 2387 tty->print(" { "); | |
| 2388 if (is_in_use()) tty->print("in_use "); | |
| 2389 if (is_not_entrant()) tty->print("not_entrant "); | |
| 2390 if (is_zombie()) tty->print("zombie "); | |
| 2391 if (is_unloaded()) tty->print("unloaded "); | |
|
989
148e5441d916
6863023: need non-perm oops in code cache for JSR 292
jrose
parents:
931
diff
changeset
|
2392 if (on_scavenge_root_list()) tty->print("scavenge_root "); |
| 0 | 2393 tty->print_cr("}:"); |
| 2394 } | |
| 2395 if (size () > 0) tty->print_cr(" total in heap [" INTPTR_FORMAT "," INTPTR_FORMAT "] = %d", | |
| 2396 (address)this, | |
| 2397 (address)this + size(), | |
| 2398 size()); | |
| 2399 if (relocation_size () > 0) tty->print_cr(" relocation [" INTPTR_FORMAT "," INTPTR_FORMAT "] = %d", | |
| 2400 relocation_begin(), | |
| 2401 relocation_end(), | |
| 2402 relocation_size()); | |
|
1762
0878d7bae69f
6961697: move nmethod constants section before instruction section
twisti
parents:
1748
diff
changeset
|
2403 if (consts_size () > 0) tty->print_cr(" constants [" INTPTR_FORMAT "," INTPTR_FORMAT "] = %d", |
|
0878d7bae69f
6961697: move nmethod constants section before instruction section
twisti
parents:
1748
diff
changeset
|
2404 consts_begin(), |
|
0878d7bae69f
6961697: move nmethod constants section before instruction section
twisti
parents:
1748
diff
changeset
|
2405 consts_end(), |
|
0878d7bae69f
6961697: move nmethod constants section before instruction section
twisti
parents:
1748
diff
changeset
|
2406 consts_size()); |
| 1748 | 2407 if (insts_size () > 0) tty->print_cr(" main code [" INTPTR_FORMAT "," INTPTR_FORMAT "] = %d", |
| 2408 insts_begin(), | |
| 2409 insts_end(), | |
| 2410 insts_size()); | |
| 0 | 2411 if (stub_size () > 0) tty->print_cr(" stub code [" INTPTR_FORMAT "," INTPTR_FORMAT "] = %d", |
| 2412 stub_begin(), | |
| 2413 stub_end(), | |
| 2414 stub_size()); | |
|
1563
1a5913bf5e19
6951083: oops and relocations should part of nmethod not CodeBlob
twisti
parents:
1538
diff
changeset
|
2415 if (oops_size () > 0) tty->print_cr(" oops [" INTPTR_FORMAT "," INTPTR_FORMAT "] = %d", |
|
1a5913bf5e19
6951083: oops and relocations should part of nmethod not CodeBlob
twisti
parents:
1538
diff
changeset
|
2416 oops_begin(), |
|
1a5913bf5e19
6951083: oops and relocations should part of nmethod not CodeBlob
twisti
parents:
1538
diff
changeset
|
2417 oops_end(), |
|
1a5913bf5e19
6951083: oops and relocations should part of nmethod not CodeBlob
twisti
parents:
1538
diff
changeset
|
2418 oops_size()); |
| 0 | 2419 if (scopes_data_size () > 0) tty->print_cr(" scopes data [" INTPTR_FORMAT "," INTPTR_FORMAT "] = %d", |
| 2420 scopes_data_begin(), | |
| 2421 scopes_data_end(), | |
| 2422 scopes_data_size()); | |
| 2423 if (scopes_pcs_size () > 0) tty->print_cr(" scopes pcs [" INTPTR_FORMAT "," INTPTR_FORMAT "] = %d", | |
| 2424 scopes_pcs_begin(), | |
| 2425 scopes_pcs_end(), | |
| 2426 scopes_pcs_size()); | |
| 2427 if (dependencies_size () > 0) tty->print_cr(" dependencies [" INTPTR_FORMAT "," INTPTR_FORMAT "] = %d", | |
| 2428 dependencies_begin(), | |
| 2429 dependencies_end(), | |
| 2430 dependencies_size()); | |
| 2431 if (handler_table_size() > 0) tty->print_cr(" handler table [" INTPTR_FORMAT "," INTPTR_FORMAT "] = %d", | |
| 2432 handler_table_begin(), | |
| 2433 handler_table_end(), | |
| 2434 handler_table_size()); | |
| 2435 if (nul_chk_table_size() > 0) tty->print_cr(" nul chk table [" INTPTR_FORMAT "," INTPTR_FORMAT "] = %d", | |
| 2436 nul_chk_table_begin(), | |
| 2437 nul_chk_table_end(), | |
| 2438 nul_chk_table_size()); | |
| 2439 } | |
| 2440 | |
|
100
c7c777385a15
6667042: PrintAssembly option does not work without special plugin
jrose
parents:
30
diff
changeset
|
2441 void nmethod::print_code() { |
|
c7c777385a15
6667042: PrintAssembly option does not work without special plugin
jrose
parents:
30
diff
changeset
|
2442 HandleMark hm; |
|
c7c777385a15
6667042: PrintAssembly option does not work without special plugin
jrose
parents:
30
diff
changeset
|
2443 ResourceMark m; |
|
c7c777385a15
6667042: PrintAssembly option does not work without special plugin
jrose
parents:
30
diff
changeset
|
2444 Disassembler::decode(this); |
|
c7c777385a15
6667042: PrintAssembly option does not work without special plugin
jrose
parents:
30
diff
changeset
|
2445 } |
|
c7c777385a15
6667042: PrintAssembly option does not work without special plugin
jrose
parents:
30
diff
changeset
|
2446 |
|
c7c777385a15
6667042: PrintAssembly option does not work without special plugin
jrose
parents:
30
diff
changeset
|
2447 |
|
c7c777385a15
6667042: PrintAssembly option does not work without special plugin
jrose
parents:
30
diff
changeset
|
2448 #ifndef PRODUCT |
| 0 | 2449 |
| 2450 void nmethod::print_scopes() { | |
| 2451 // Find the first pc desc for all scopes in the code and print it. | |
| 2452 ResourceMark rm; | |
| 2453 for (PcDesc* p = scopes_pcs_begin(); p < scopes_pcs_end(); p++) { | |
| 2454 if (p->scope_decode_offset() == DebugInformationRecorder::serialized_null) | |
| 2455 continue; | |
| 2456 | |
| 2457 ScopeDesc* sd = scope_desc_at(p->real_pc(this)); | |
| 2458 sd->print_on(tty, p); | |
| 2459 } | |
| 2460 } | |
| 2461 | |
| 2462 void nmethod::print_dependencies() { | |
| 2463 ResourceMark rm; | |
| 2464 ttyLocker ttyl; // keep the following output all in one block | |
| 2465 tty->print_cr("Dependencies:"); | |
| 2466 for (Dependencies::DepStream deps(this); deps.next(); ) { | |
| 2467 deps.print_dependency(); | |
| 2468 klassOop ctxk = deps.context_type(); | |
| 2469 if (ctxk != NULL) { | |
| 2470 Klass* k = Klass::cast(ctxk); | |
| 2471 if (k->oop_is_instance() && ((instanceKlass*)k)->is_dependent_nmethod(this)) { | |
| 30 | 2472 tty->print_cr(" [nmethod<=klass]%s", k->external_name()); |
| 0 | 2473 } |
| 2474 } | |
| 2475 deps.log_dependency(); // put it into the xml log also | |
| 2476 } | |
| 2477 } | |
| 2478 | |
| 2479 | |
| 2480 void nmethod::print_relocations() { | |
| 2481 ResourceMark m; // in case methods get printed via the debugger | |
| 2482 tty->print_cr("relocations:"); | |
| 2483 RelocIterator iter(this); | |
| 2484 iter.print(); | |
| 2485 if (UseRelocIndex) { | |
| 2486 jint* index_end = (jint*)relocation_end() - 1; | |
| 2487 jint index_size = *index_end; | |
| 2488 jint* index_start = (jint*)( (address)index_end - index_size ); | |
| 2489 tty->print_cr(" index @" INTPTR_FORMAT ": index_size=%d", index_start, index_size); | |
| 2490 if (index_size > 0) { | |
| 2491 jint* ip; | |
| 2492 for (ip = index_start; ip+2 <= index_end; ip += 2) | |
| 2493 tty->print_cr(" (%d %d) addr=" INTPTR_FORMAT " @" INTPTR_FORMAT, | |
| 2494 ip[0], | |
| 2495 ip[1], | |
| 2496 header_end()+ip[0], | |
| 2497 relocation_begin()-1+ip[1]); | |
| 2498 for (; ip < index_end; ip++) | |
| 2499 tty->print_cr(" (%d ?)", ip[0]); | |
| 2500 tty->print_cr(" @" INTPTR_FORMAT ": index_size=%d", ip, *ip++); | |
| 2501 tty->print_cr("reloc_end @" INTPTR_FORMAT ":", ip); | |
| 2502 } | |
| 2503 } | |
| 2504 } | |
| 2505 | |
| 2506 | |
| 2507 void nmethod::print_pcs() { | |
| 2508 ResourceMark m; // in case methods get printed via debugger | |
| 2509 tty->print_cr("pc-bytecode offsets:"); | |
| 2510 for (PcDesc* p = scopes_pcs_begin(); p < scopes_pcs_end(); p++) { | |
| 2511 p->print(this); | |
| 2512 } | |
| 2513 } | |
| 2514 | |
|
100
c7c777385a15
6667042: PrintAssembly option does not work without special plugin
jrose
parents:
30
diff
changeset
|
2515 #endif // PRODUCT |
| 0 | 2516 |
| 2517 const char* nmethod::reloc_string_for(u_char* begin, u_char* end) { | |
| 2518 RelocIterator iter(this, begin, end); | |
| 2519 bool have_one = false; | |
| 2520 while (iter.next()) { | |
| 2521 have_one = true; | |
| 2522 switch (iter.type()) { | |
| 2523 case relocInfo::none: return "no_reloc"; | |
| 2524 case relocInfo::oop_type: { | |
| 2525 stringStream st; | |
| 2526 oop_Relocation* r = iter.oop_reloc(); | |
| 2527 oop obj = r->oop_value(); | |
| 2528 st.print("oop("); | |
| 2529 if (obj == NULL) st.print("NULL"); | |
| 2530 else obj->print_value_on(&st); | |
| 2531 st.print(")"); | |
| 2532 return st.as_string(); | |
| 2533 } | |
| 2534 case relocInfo::virtual_call_type: return "virtual_call"; | |
| 2535 case relocInfo::opt_virtual_call_type: return "optimized virtual_call"; | |
| 2536 case relocInfo::static_call_type: return "static_call"; | |
| 2537 case relocInfo::static_stub_type: return "static_stub"; | |
| 2538 case relocInfo::runtime_call_type: return "runtime_call"; | |
| 2539 case relocInfo::external_word_type: return "external_word"; | |
| 2540 case relocInfo::internal_word_type: return "internal_word"; | |
| 2541 case relocInfo::section_word_type: return "section_word"; | |
| 2542 case relocInfo::poll_type: return "poll"; | |
| 2543 case relocInfo::poll_return_type: return "poll_return"; | |
| 2544 case relocInfo::type_mask: return "type_bit_mask"; | |
| 2545 } | |
| 2546 } | |
| 2547 return have_one ? "other" : NULL; | |
| 2548 } | |
| 2549 | |
| 2550 // Return a the last scope in (begin..end] | |
| 2551 ScopeDesc* nmethod::scope_desc_in(address begin, address end) { | |
| 2552 PcDesc* p = pc_desc_near(begin+1); | |
| 2553 if (p != NULL && p->real_pc(this) <= end) { | |
| 2554 return new ScopeDesc(this, p->scope_decode_offset(), | |
|
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
|
2555 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
|
2556 p->return_oop()); |
| 0 | 2557 } |
| 2558 return NULL; | |
| 2559 } | |
| 2560 | |
|
1155
4e6abf09f540
6912062: disassembler plugin needs to produce symbolic information in product mode
jrose
parents:
1141
diff
changeset
|
2561 void nmethod::print_nmethod_labels(outputStream* stream, address block_begin) { |
|
4e6abf09f540
6912062: disassembler plugin needs to produce symbolic information in product mode
jrose
parents:
1141
diff
changeset
|
2562 if (block_begin == entry_point()) stream->print_cr("[Entry Point]"); |
|
4e6abf09f540
6912062: disassembler plugin needs to produce symbolic information in product mode
jrose
parents:
1141
diff
changeset
|
2563 if (block_begin == verified_entry_point()) stream->print_cr("[Verified Entry Point]"); |
|
4e6abf09f540
6912062: disassembler plugin needs to produce symbolic information in product mode
jrose
parents:
1141
diff
changeset
|
2564 if (block_begin == exception_begin()) stream->print_cr("[Exception Handler]"); |
|
4e6abf09f540
6912062: disassembler plugin needs to produce symbolic information in product mode
jrose
parents:
1141
diff
changeset
|
2565 if (block_begin == stub_begin()) stream->print_cr("[Stub Code]"); |
| 1204 | 2566 if (block_begin == deopt_handler_begin()) stream->print_cr("[Deopt Handler Code]"); |
|
1691
4a665be40fd3
6975855: don't emit deopt MH handler in C1 if not required
twisti
parents:
1644
diff
changeset
|
2567 |
|
4a665be40fd3
6975855: don't emit deopt MH handler in C1 if not required
twisti
parents:
1644
diff
changeset
|
2568 if (has_method_handle_invokes()) |
|
4a665be40fd3
6975855: don't emit deopt MH handler in C1 if not required
twisti
parents:
1644
diff
changeset
|
2569 if (block_begin == deopt_mh_handler_begin()) stream->print_cr("[Deopt MH Handler Code]"); |
|
4a665be40fd3
6975855: don't emit deopt MH handler in C1 if not required
twisti
parents:
1644
diff
changeset
|
2570 |
|
1155
4e6abf09f540
6912062: disassembler plugin needs to produce symbolic information in product mode
jrose
parents:
1141
diff
changeset
|
2571 if (block_begin == consts_begin()) stream->print_cr("[Constants]"); |
|
1691
4a665be40fd3
6975855: don't emit deopt MH handler in C1 if not required
twisti
parents:
1644
diff
changeset
|
2572 |
|
1155
4e6abf09f540
6912062: disassembler plugin needs to produce symbolic information in product mode
jrose
parents:
1141
diff
changeset
|
2573 if (block_begin == entry_point()) { |
|
4e6abf09f540
6912062: disassembler plugin needs to produce symbolic information in product mode
jrose
parents:
1141
diff
changeset
|
2574 methodHandle m = method(); |
|
4e6abf09f540
6912062: disassembler plugin needs to produce symbolic information in product mode
jrose
parents:
1141
diff
changeset
|
2575 if (m.not_null()) { |
|
4e6abf09f540
6912062: disassembler plugin needs to produce symbolic information in product mode
jrose
parents:
1141
diff
changeset
|
2576 stream->print(" # "); |
|
4e6abf09f540
6912062: disassembler plugin needs to produce symbolic information in product mode
jrose
parents:
1141
diff
changeset
|
2577 m->print_value_on(stream); |
|
4e6abf09f540
6912062: disassembler plugin needs to produce symbolic information in product mode
jrose
parents:
1141
diff
changeset
|
2578 stream->cr(); |
|
4e6abf09f540
6912062: disassembler plugin needs to produce symbolic information in product mode
jrose
parents:
1141
diff
changeset
|
2579 } |
|
4e6abf09f540
6912062: disassembler plugin needs to produce symbolic information in product mode
jrose
parents:
1141
diff
changeset
|
2580 if (m.not_null() && !is_osr_method()) { |
|
4e6abf09f540
6912062: disassembler plugin needs to produce symbolic information in product mode
jrose
parents:
1141
diff
changeset
|
2581 ResourceMark rm; |
|
4e6abf09f540
6912062: disassembler plugin needs to produce symbolic information in product mode
jrose
parents:
1141
diff
changeset
|
2582 int sizeargs = m->size_of_parameters(); |
|
4e6abf09f540
6912062: disassembler plugin needs to produce symbolic information in product mode
jrose
parents:
1141
diff
changeset
|
2583 BasicType* sig_bt = NEW_RESOURCE_ARRAY(BasicType, sizeargs); |
|
4e6abf09f540
6912062: disassembler plugin needs to produce symbolic information in product mode
jrose
parents:
1141
diff
changeset
|
2584 VMRegPair* regs = NEW_RESOURCE_ARRAY(VMRegPair, sizeargs); |
|
4e6abf09f540
6912062: disassembler plugin needs to produce symbolic information in product mode
jrose
parents:
1141
diff
changeset
|
2585 { |
|
4e6abf09f540
6912062: disassembler plugin needs to produce symbolic information in product mode
jrose
parents:
1141
diff
changeset
|
2586 int sig_index = 0; |
|
4e6abf09f540
6912062: disassembler plugin needs to produce symbolic information in product mode
jrose
parents:
1141
diff
changeset
|
2587 if (!m->is_static()) |
|
4e6abf09f540
6912062: disassembler plugin needs to produce symbolic information in product mode
jrose
parents:
1141
diff
changeset
|
2588 sig_bt[sig_index++] = T_OBJECT; // 'this' |
|
4e6abf09f540
6912062: disassembler plugin needs to produce symbolic information in product mode
jrose
parents:
1141
diff
changeset
|
2589 for (SignatureStream ss(m->signature()); !ss.at_return_type(); ss.next()) { |
|
4e6abf09f540
6912062: disassembler plugin needs to produce symbolic information in product mode
jrose
parents:
1141
diff
changeset
|
2590 BasicType t = ss.type(); |
|
4e6abf09f540
6912062: disassembler plugin needs to produce symbolic information in product mode
jrose
parents:
1141
diff
changeset
|
2591 sig_bt[sig_index++] = t; |
|
4e6abf09f540
6912062: disassembler plugin needs to produce symbolic information in product mode
jrose
parents:
1141
diff
changeset
|
2592 if (type2size[t] == 2) { |
|
4e6abf09f540
6912062: disassembler plugin needs to produce symbolic information in product mode
jrose
parents:
1141
diff
changeset
|
2593 sig_bt[sig_index++] = T_VOID; |
|
4e6abf09f540
6912062: disassembler plugin needs to produce symbolic information in product mode
jrose
parents:
1141
diff
changeset
|
2594 } else { |
|
4e6abf09f540
6912062: disassembler plugin needs to produce symbolic information in product mode
jrose
parents:
1141
diff
changeset
|
2595 assert(type2size[t] == 1, "size is 1 or 2"); |
|
4e6abf09f540
6912062: disassembler plugin needs to produce symbolic information in product mode
jrose
parents:
1141
diff
changeset
|
2596 } |
|
4e6abf09f540
6912062: disassembler plugin needs to produce symbolic information in product mode
jrose
parents:
1141
diff
changeset
|
2597 } |
|
4e6abf09f540
6912062: disassembler plugin needs to produce symbolic information in product mode
jrose
parents:
1141
diff
changeset
|
2598 assert(sig_index == sizeargs, ""); |
|
4e6abf09f540
6912062: disassembler plugin needs to produce symbolic information in product mode
jrose
parents:
1141
diff
changeset
|
2599 } |
|
4e6abf09f540
6912062: disassembler plugin needs to produce symbolic information in product mode
jrose
parents:
1141
diff
changeset
|
2600 const char* spname = "sp"; // make arch-specific? |
|
4e6abf09f540
6912062: disassembler plugin needs to produce symbolic information in product mode
jrose
parents:
1141
diff
changeset
|
2601 intptr_t out_preserve = SharedRuntime::java_calling_convention(sig_bt, regs, sizeargs, false); |
|
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2602 int stack_slot_offset = this->frame_size() * wordSize; |
|
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|
2603 int tab1 = 14, tab2 = 24; |
|
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|
2604 int sig_index = 0; |
|
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|
2605 int arg_index = (m->is_static() ? 0 : -1); |
|
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|
2606 bool did_old_sp = false; |
|
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|
2607 for (SignatureStream ss(m->signature()); !ss.at_return_type(); ) { |
|
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|
2608 bool at_this = (arg_index == -1); |
|
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|
2609 bool at_old_sp = false; |
|
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|
2610 BasicType t = (at_this ? T_OBJECT : ss.type()); |
|
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|
2611 assert(t == sig_bt[sig_index], "sigs in sync"); |
|
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|
2612 if (at_this) |
|
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|
2613 stream->print(" # this: "); |
|
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|
2614 else |
|
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|
2615 stream->print(" # parm%d: ", arg_index); |
|
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|
2616 stream->move_to(tab1); |
|
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|
2617 VMReg fst = regs[sig_index].first(); |
|
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|
2618 VMReg snd = regs[sig_index].second(); |
|
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|
2619 if (fst->is_reg()) { |
|
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|
2620 stream->print("%s", fst->name()); |
|
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|
2621 if (snd->is_valid()) { |
|
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|
2622 stream->print(":%s", snd->name()); |
|
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|
2623 } |
|
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|
2624 } else if (fst->is_stack()) { |
|
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|
2625 int offset = fst->reg2stack() * VMRegImpl::stack_slot_size + stack_slot_offset; |
|
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|
2626 if (offset == stack_slot_offset) at_old_sp = true; |
|
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|
2627 stream->print("[%s+0x%x]", spname, offset); |
|
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|
2628 } else { |
|
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|
2629 stream->print("reg%d:%d??", (int)(intptr_t)fst, (int)(intptr_t)snd); |
|
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|
2630 } |
|
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|
2631 stream->print(" "); |
|
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|
2632 stream->move_to(tab2); |
|
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|
2633 stream->print("= "); |
|
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|
2634 if (at_this) { |
|
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|
2635 m->method_holder()->print_value_on(stream); |
|
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|
2636 } else { |
|
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|
2637 bool did_name = false; |
|
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|
2638 if (!at_this && ss.is_object()) { |
|
2177
3582bf76420e
6990754: Use native memory and reference counting to implement SymbolTable
coleenp
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diff
changeset
|
2639 Symbol* name = ss.as_symbol_or_null(); |
|
1155
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|
2640 if (name != NULL) { |
|
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|
2641 name->print_value_on(stream); |
|
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|
2642 did_name = true; |
|
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|
2643 } |
|
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|
2644 } |
|
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|
2645 if (!did_name) |
|
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|
2646 stream->print("%s", type2name(t)); |
|
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|
2647 } |
|
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changeset
|
2648 if (at_old_sp) { |
|
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|
2649 stream->print(" (%s of caller)", spname); |
|
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|
2650 did_old_sp = true; |
|
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changeset
|
2651 } |
|
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changeset
|
2652 stream->cr(); |
|
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changeset
|
2653 sig_index += type2size[t]; |
|
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diff
changeset
|
2654 arg_index += 1; |
|
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diff
changeset
|
2655 if (!at_this) ss.next(); |
|
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changeset
|
2656 } |
|
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changeset
|
2657 if (!did_old_sp) { |
|
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diff
changeset
|
2658 stream->print(" # "); |
|
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diff
changeset
|
2659 stream->move_to(tab1); |
|
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diff
changeset
|
2660 stream->print("[%s+0x%x]", spname, stack_slot_offset); |
|
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changeset
|
2661 stream->print(" (%s of caller)", spname); |
|
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diff
changeset
|
2662 stream->cr(); |
|
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changeset
|
2663 } |
|
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changeset
|
2664 } |
|
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changeset
|
2665 } |
|
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changeset
|
2666 } |
|
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diff
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|
2667 |
| 0 | 2668 void nmethod::print_code_comment_on(outputStream* st, int column, u_char* begin, u_char* end) { |
| 2669 // First, find an oopmap in (begin, end]. | |
| 2670 // We use the odd half-closed interval so that oop maps and scope descs | |
| 2671 // which are tied to the byte after a call are printed with the call itself. | |
| 1748 | 2672 address base = code_begin(); |
| 0 | 2673 OopMapSet* oms = oop_maps(); |
| 2674 if (oms != NULL) { | |
| 2675 for (int i = 0, imax = oms->size(); i < imax; i++) { | |
| 2676 OopMap* om = oms->at(i); | |
| 2677 address pc = base + om->offset(); | |
| 2678 if (pc > begin) { | |
| 2679 if (pc <= end) { | |
|
100
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diff
changeset
|
2680 st->move_to(column); |
|
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6667042: PrintAssembly option does not work without special plugin
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diff
changeset
|
2681 st->print("; "); |
|
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diff
changeset
|
2682 om->print_on(st); |
| 0 | 2683 } |
| 2684 break; | |
| 2685 } | |
| 2686 } | |
| 2687 } | |
|
100
c7c777385a15
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diff
changeset
|
2688 |
|
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diff
changeset
|
2689 // Print any debug info present at this pc. |
| 0 | 2690 ScopeDesc* sd = scope_desc_in(begin, end); |
| 2691 if (sd != NULL) { | |
|
100
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diff
changeset
|
2692 st->move_to(column); |
| 0 | 2693 if (sd->bci() == SynchronizationEntryBCI) { |
| 2694 st->print(";*synchronization entry"); | |
| 2695 } else { | |
| 2696 if (sd->method().is_null()) { | |
|
100
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diff
changeset
|
2697 st->print("method is NULL"); |
| 0 | 2698 } else if (sd->method()->is_native()) { |
|
100
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diff
changeset
|
2699 st->print("method is native"); |
| 0 | 2700 } else { |
| 2142 | 2701 Bytecodes::Code bc = sd->method()->java_code_at(sd->bci()); |
| 0 | 2702 st->print(";*%s", Bytecodes::name(bc)); |
| 2703 switch (bc) { | |
| 2704 case Bytecodes::_invokevirtual: | |
| 2705 case Bytecodes::_invokespecial: | |
| 2706 case Bytecodes::_invokestatic: | |
| 2707 case Bytecodes::_invokeinterface: | |
| 2708 { | |
| 2142 | 2709 Bytecode_invoke invoke(sd->method(), sd->bci()); |
| 0 | 2710 st->print(" "); |
| 2142 | 2711 if (invoke.name() != NULL) |
| 2712 invoke.name()->print_symbol_on(st); | |
| 0 | 2713 else |
| 2714 st->print("<UNKNOWN>"); | |
| 2715 break; | |
| 2716 } | |
| 2717 case Bytecodes::_getfield: | |
| 2718 case Bytecodes::_putfield: | |
| 2719 case Bytecodes::_getstatic: | |
| 2720 case Bytecodes::_putstatic: | |
| 2721 { | |
| 2142 | 2722 Bytecode_field field(sd->method(), sd->bci()); |
| 0 | 2723 st->print(" "); |
| 2142 | 2724 if (field.name() != NULL) |
| 2725 field.name()->print_symbol_on(st); | |
| 0 | 2726 else |
| 2727 st->print("<UNKNOWN>"); | |
| 2728 } | |
| 2729 } | |
| 2730 } | |
| 2731 } | |
|
100
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diff
changeset
|
2732 |
| 0 | 2733 // Print all scopes |
| 2734 for (;sd != NULL; sd = sd->sender()) { | |
|
100
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diff
changeset
|
2735 st->move_to(column); |
| 0 | 2736 st->print("; -"); |
| 2737 if (sd->method().is_null()) { | |
|
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diff
changeset
|
2738 st->print("method is NULL"); |
| 0 | 2739 } else { |
| 2740 sd->method()->print_short_name(st); | |
| 2741 } | |
| 2742 int lineno = sd->method()->line_number_from_bci(sd->bci()); | |
| 2743 if (lineno != -1) { | |
| 2744 st->print("@%d (line %d)", sd->bci(), lineno); | |
| 2745 } else { | |
| 2746 st->print("@%d", sd->bci()); | |
| 2747 } | |
| 2748 st->cr(); | |
| 2749 } | |
| 2750 } | |
| 2751 | |
| 2752 // Print relocation information | |
| 2753 const char* str = reloc_string_for(begin, end); | |
| 2754 if (str != NULL) { | |
| 2755 if (sd != NULL) st->cr(); | |
|
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diff
changeset
|
2756 st->move_to(column); |
| 0 | 2757 st->print("; {%s}", str); |
| 2758 } | |
| 1748 | 2759 int cont_offset = ImplicitExceptionTable(this).at(begin - code_begin()); |
| 0 | 2760 if (cont_offset != 0) { |
|
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|
2761 st->move_to(column); |
| 1748 | 2762 st->print("; implicit exception: dispatches to " INTPTR_FORMAT, code_begin() + cont_offset); |
| 0 | 2763 } |
| 2764 | |
| 2765 } | |
| 2766 | |
|
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|
2767 #ifndef PRODUCT |
|
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diff
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|
2768 |
| 0 | 2769 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
|
2770 st->print("nmethod"); |
|
3d58a4983660
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2376
diff
changeset
|
2771 print_on(st, NULL); |
| 0 | 2772 } |
| 2773 | |
| 2774 void nmethod::print_calls(outputStream* st) { | |
| 2775 RelocIterator iter(this); | |
| 2776 while (iter.next()) { | |
| 2777 switch (iter.type()) { | |
| 2778 case relocInfo::virtual_call_type: | |
| 2779 case relocInfo::opt_virtual_call_type: { | |
| 2780 VerifyMutexLocker mc(CompiledIC_lock); | |
| 2781 CompiledIC_at(iter.reloc())->print(); | |
| 2782 break; | |
| 2783 } | |
| 2784 case relocInfo::static_call_type: | |
| 2785 st->print_cr("Static call at " INTPTR_FORMAT, iter.reloc()->addr()); | |
| 2786 compiledStaticCall_at(iter.reloc())->print(); | |
| 2787 break; | |
| 2788 } | |
| 2789 } | |
| 2790 } | |
| 2791 | |
| 2792 void nmethod::print_handler_table() { | |
| 2793 ExceptionHandlerTable(this).print(); | |
| 2794 } | |
| 2795 | |
| 2796 void nmethod::print_nul_chk_table() { | |
| 1748 | 2797 ImplicitExceptionTable(this).print(code_begin()); |
| 0 | 2798 } |
| 2799 | |
| 2800 void nmethod::print_statistics() { | |
| 2801 ttyLocker ttyl; | |
| 2802 if (xtty != NULL) xtty->head("statistics type='nmethod'"); | |
| 2803 nmethod_stats.print_native_nmethod_stats(); | |
| 2804 nmethod_stats.print_nmethod_stats(); | |
| 2805 DebugInformationRecorder::print_statistics(); | |
| 2806 nmethod_stats.print_pc_stats(); | |
| 2807 Dependencies::print_statistics(); | |
| 2808 if (xtty != NULL) xtty->tail("statistics"); | |
| 2809 } | |
| 2810 | |
| 2811 #endif // PRODUCT |