Mercurial > hg > truffle
annotate src/share/vm/code/nmethod.cpp @ 10879:d55f24eac4b1
PTX support for Linux
| author | Morris Meyer <morris.meyer@oracle.com> |
|---|---|
| date | Thu, 25 Jul 2013 22:15:30 -0400 |
| parents | 4acf032748b9 |
| children | f22cbff51c12 6b0fd0964b87 |
| rev | line source |
|---|---|
| 0 | 1 /* |
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2 * Copyright (c) 1997, 2012, Oracle and/or its affiliates. All rights reserved. |
| 0 | 3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. |
| 4 * | |
| 5 * This code is free software; you can redistribute it and/or modify it | |
| 6 * under the terms of the GNU General Public License version 2 only, as | |
| 7 * published by the Free Software Foundation. | |
| 8 * | |
| 9 * This code is distributed in the hope that it will be useful, but WITHOUT | |
| 10 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or | |
| 11 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License | |
| 12 * version 2 for more details (a copy is included in the LICENSE file that | |
| 13 * accompanied this code). | |
| 14 * | |
| 15 * You should have received a copy of the GNU General Public License version | |
| 16 * 2 along with this work; if not, write to the Free Software Foundation, | |
| 17 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. | |
| 18 * | |
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19 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA |
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20 * or visit www.oracle.com if you need additional information or have any |
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21 * questions. |
| 0 | 22 * |
| 23 */ | |
| 24 | |
| 1972 | 25 #include "precompiled.hpp" |
| 26 #include "code/codeCache.hpp" | |
| 27 #include "code/compiledIC.hpp" | |
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28 #include "code/dependencies.hpp" |
| 1972 | 29 #include "code/nmethod.hpp" |
| 30 #include "code/scopeDesc.hpp" | |
| 31 #include "compiler/abstractCompiler.hpp" | |
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32 #include "compiler/compileBroker.hpp" |
| 1972 | 33 #include "compiler/compileLog.hpp" |
| 34 #include "compiler/compilerOracle.hpp" | |
| 35 #include "compiler/disassembler.hpp" | |
| 36 #include "interpreter/bytecode.hpp" | |
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37 #include "oops/methodData.hpp" |
| 1972 | 38 #include "prims/jvmtiRedefineClassesTrace.hpp" |
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39 #include "prims/jvmtiImpl.hpp" |
| 1972 | 40 #include "runtime/sharedRuntime.hpp" |
| 41 #include "runtime/sweeper.hpp" | |
| 42 #include "utilities/dtrace.hpp" | |
| 43 #include "utilities/events.hpp" | |
| 44 #include "utilities/xmlstream.hpp" | |
| 45 #ifdef SHARK | |
| 46 #include "shark/sharkCompiler.hpp" | |
| 47 #endif | |
| 9707 | 48 #ifdef GRAAL |
| 49 #include "graal/graalJavaAccess.hpp" | |
| 50 #endif | |
| 0 | 51 |
| 52 #ifdef DTRACE_ENABLED | |
| 53 | |
| 54 // Only bother with this argument setup if dtrace is available | |
| 55 | |
| 4006 | 56 #ifndef USDT2 |
| 0 | 57 HS_DTRACE_PROBE_DECL8(hotspot, compiled__method__load, |
| 58 const char*, int, const char*, int, const char*, int, void*, size_t); | |
| 59 | |
| 60 HS_DTRACE_PROBE_DECL6(hotspot, compiled__method__unload, | |
| 61 char*, int, char*, int, char*, int); | |
| 62 | |
| 63 #define DTRACE_METHOD_UNLOAD_PROBE(method) \ | |
| 64 { \ | |
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65 Method* m = (method); \ |
| 0 | 66 if (m != NULL) { \ |
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67 Symbol* klass_name = m->klass_name(); \ |
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68 Symbol* name = m->name(); \ |
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69 Symbol* signature = m->signature(); \ |
| 0 | 70 HS_DTRACE_PROBE6(hotspot, compiled__method__unload, \ |
| 71 klass_name->bytes(), klass_name->utf8_length(), \ | |
| 72 name->bytes(), name->utf8_length(), \ | |
| 73 signature->bytes(), signature->utf8_length()); \ | |
| 74 } \ | |
| 75 } | |
| 4006 | 76 #else /* USDT2 */ |
| 77 #define DTRACE_METHOD_UNLOAD_PROBE(method) \ | |
| 78 { \ | |
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79 Method* m = (method); \ |
| 4006 | 80 if (m != NULL) { \ |
| 81 Symbol* klass_name = m->klass_name(); \ | |
| 82 Symbol* name = m->name(); \ | |
| 83 Symbol* signature = m->signature(); \ | |
| 84 HOTSPOT_COMPILED_METHOD_UNLOAD( \ | |
| 85 (char *) klass_name->bytes(), klass_name->utf8_length(), \ | |
| 86 (char *) name->bytes(), name->utf8_length(), \ | |
| 87 (char *) signature->bytes(), signature->utf8_length()); \ | |
| 88 } \ | |
| 89 } | |
| 90 #endif /* USDT2 */ | |
| 0 | 91 |
| 92 #else // ndef DTRACE_ENABLED | |
| 93 | |
| 94 #define DTRACE_METHOD_UNLOAD_PROBE(method) | |
| 95 | |
| 96 #endif | |
| 97 | |
| 98 bool nmethod::is_compiled_by_c1() const { | |
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99 if (compiler() == NULL || method() == NULL) return false; // can happen during debug printing |
| 0 | 100 if (is_native_method()) return false; |
| 101 return compiler()->is_c1(); | |
| 102 } | |
| 9707 | 103 bool nmethod::is_compiled_by_graal() const { |
| 104 if (compiler() == NULL || method() == NULL) return false; // can happen during debug printing | |
| 105 if (is_native_method()) return false; | |
| 106 return compiler()->is_graal(); | |
| 107 } | |
| 0 | 108 bool nmethod::is_compiled_by_c2() const { |
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109 if (compiler() == NULL || method() == NULL) return false; // can happen during debug printing |
| 0 | 110 if (is_native_method()) return false; |
| 111 return compiler()->is_c2(); | |
| 112 } | |
| 1692 | 113 bool nmethod::is_compiled_by_shark() const { |
| 114 if (is_native_method()) return false; | |
| 115 assert(compiler() != NULL, "must be"); | |
| 116 return compiler()->is_shark(); | |
| 117 } | |
| 0 | 118 |
| 119 | |
| 120 | |
| 121 //--------------------------------------------------------------------------------- | |
| 122 // NMethod statistics | |
| 123 // They are printed under various flags, including: | |
| 124 // PrintC1Statistics, PrintOptoStatistics, LogVMOutput, and LogCompilation. | |
| 125 // (In the latter two cases, they like other stats are printed to the log only.) | |
| 126 | |
| 127 // These variables are put into one block to reduce relocations | |
| 128 // and make it simpler to print from the debugger. | |
| 129 static | |
| 130 struct nmethod_stats_struct { | |
| 131 int nmethod_count; | |
| 132 int total_size; | |
| 133 int relocation_size; | |
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134 int consts_size; |
| 1748 | 135 int insts_size; |
| 0 | 136 int stub_size; |
| 137 int scopes_data_size; | |
| 138 int scopes_pcs_size; | |
| 139 int dependencies_size; | |
| 140 int handler_table_size; | |
| 141 int nul_chk_table_size; | |
| 142 int oops_size; | |
| 143 | |
| 144 void note_nmethod(nmethod* nm) { | |
| 145 nmethod_count += 1; | |
| 146 total_size += nm->size(); | |
| 147 relocation_size += nm->relocation_size(); | |
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148 consts_size += nm->consts_size(); |
| 1748 | 149 insts_size += nm->insts_size(); |
| 0 | 150 stub_size += nm->stub_size(); |
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151 oops_size += nm->oops_size(); |
| 0 | 152 scopes_data_size += nm->scopes_data_size(); |
| 153 scopes_pcs_size += nm->scopes_pcs_size(); | |
| 154 dependencies_size += nm->dependencies_size(); | |
| 155 handler_table_size += nm->handler_table_size(); | |
| 156 nul_chk_table_size += nm->nul_chk_table_size(); | |
| 157 } | |
| 158 void print_nmethod_stats() { | |
| 159 if (nmethod_count == 0) return; | |
| 160 tty->print_cr("Statistics for %d bytecoded nmethods:", nmethod_count); | |
| 161 if (total_size != 0) tty->print_cr(" total in heap = %d", total_size); | |
| 162 if (relocation_size != 0) tty->print_cr(" relocation = %d", relocation_size); | |
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163 if (consts_size != 0) tty->print_cr(" constants = %d", consts_size); |
| 1748 | 164 if (insts_size != 0) tty->print_cr(" main code = %d", insts_size); |
| 0 | 165 if (stub_size != 0) tty->print_cr(" stub code = %d", stub_size); |
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166 if (oops_size != 0) tty->print_cr(" oops = %d", oops_size); |
| 0 | 167 if (scopes_data_size != 0) tty->print_cr(" scopes data = %d", scopes_data_size); |
| 168 if (scopes_pcs_size != 0) tty->print_cr(" scopes pcs = %d", scopes_pcs_size); | |
| 169 if (dependencies_size != 0) tty->print_cr(" dependencies = %d", dependencies_size); | |
| 170 if (handler_table_size != 0) tty->print_cr(" handler table = %d", handler_table_size); | |
| 171 if (nul_chk_table_size != 0) tty->print_cr(" nul chk table = %d", nul_chk_table_size); | |
| 172 } | |
| 173 | |
| 174 int native_nmethod_count; | |
| 175 int native_total_size; | |
| 176 int native_relocation_size; | |
| 1748 | 177 int native_insts_size; |
| 0 | 178 int native_oops_size; |
| 179 void note_native_nmethod(nmethod* nm) { | |
| 180 native_nmethod_count += 1; | |
| 181 native_total_size += nm->size(); | |
| 182 native_relocation_size += nm->relocation_size(); | |
| 1748 | 183 native_insts_size += nm->insts_size(); |
| 0 | 184 native_oops_size += nm->oops_size(); |
| 185 } | |
| 186 void print_native_nmethod_stats() { | |
| 187 if (native_nmethod_count == 0) return; | |
| 188 tty->print_cr("Statistics for %d native nmethods:", native_nmethod_count); | |
| 189 if (native_total_size != 0) tty->print_cr(" N. total size = %d", native_total_size); | |
| 190 if (native_relocation_size != 0) tty->print_cr(" N. relocation = %d", native_relocation_size); | |
| 1748 | 191 if (native_insts_size != 0) tty->print_cr(" N. main code = %d", native_insts_size); |
| 0 | 192 if (native_oops_size != 0) tty->print_cr(" N. oops = %d", native_oops_size); |
| 193 } | |
| 194 | |
| 195 int pc_desc_resets; // number of resets (= number of caches) | |
| 196 int pc_desc_queries; // queries to nmethod::find_pc_desc | |
| 197 int pc_desc_approx; // number of those which have approximate true | |
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198 int pc_desc_repeats; // number of _pc_descs[0] hits |
| 0 | 199 int pc_desc_hits; // number of LRU cache hits |
| 200 int pc_desc_tests; // total number of PcDesc examinations | |
| 201 int pc_desc_searches; // total number of quasi-binary search steps | |
| 202 int pc_desc_adds; // number of LUR cache insertions | |
| 203 | |
| 204 void print_pc_stats() { | |
| 205 tty->print_cr("PcDesc Statistics: %d queries, %.2f comparisons per query", | |
| 206 pc_desc_queries, | |
| 207 (double)(pc_desc_tests + pc_desc_searches) | |
| 208 / pc_desc_queries); | |
| 209 tty->print_cr(" caches=%d queries=%d/%d, hits=%d+%d, tests=%d+%d, adds=%d", | |
| 210 pc_desc_resets, | |
| 211 pc_desc_queries, pc_desc_approx, | |
| 212 pc_desc_repeats, pc_desc_hits, | |
| 213 pc_desc_tests, pc_desc_searches, pc_desc_adds); | |
| 214 } | |
| 215 } nmethod_stats; | |
| 216 | |
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217 |
| 0 | 218 //--------------------------------------------------------------------------------- |
| 219 | |
| 220 | |
| 221 ExceptionCache::ExceptionCache(Handle exception, address pc, address handler) { | |
| 222 assert(pc != NULL, "Must be non null"); | |
| 223 assert(exception.not_null(), "Must be non null"); | |
| 224 assert(handler != NULL, "Must be non null"); | |
| 225 | |
| 226 _count = 0; | |
| 227 _exception_type = exception->klass(); | |
| 228 _next = NULL; | |
| 229 | |
| 230 add_address_and_handler(pc,handler); | |
| 231 } | |
| 232 | |
| 233 | |
| 234 address ExceptionCache::match(Handle exception, address pc) { | |
| 235 assert(pc != NULL,"Must be non null"); | |
| 236 assert(exception.not_null(),"Must be non null"); | |
| 237 if (exception->klass() == exception_type()) { | |
| 238 return (test_address(pc)); | |
| 239 } | |
| 240 | |
| 241 return NULL; | |
| 242 } | |
| 243 | |
| 244 | |
| 245 bool ExceptionCache::match_exception_with_space(Handle exception) { | |
| 246 assert(exception.not_null(),"Must be non null"); | |
| 247 if (exception->klass() == exception_type() && count() < cache_size) { | |
| 248 return true; | |
| 249 } | |
| 250 return false; | |
| 251 } | |
| 252 | |
| 253 | |
| 254 address ExceptionCache::test_address(address addr) { | |
| 255 for (int i=0; i<count(); i++) { | |
| 256 if (pc_at(i) == addr) { | |
| 257 return handler_at(i); | |
| 258 } | |
| 259 } | |
| 260 return NULL; | |
| 261 } | |
| 262 | |
| 263 | |
| 264 bool ExceptionCache::add_address_and_handler(address addr, address handler) { | |
| 265 if (test_address(addr) == handler) return true; | |
| 266 if (count() < cache_size) { | |
| 267 set_pc_at(count(),addr); | |
| 268 set_handler_at(count(), handler); | |
| 269 increment_count(); | |
| 270 return true; | |
| 271 } | |
| 272 return false; | |
| 273 } | |
| 274 | |
| 275 | |
| 276 // private method for handling exception cache | |
| 277 // These methods are private, and used to manipulate the exception cache | |
| 278 // directly. | |
| 279 ExceptionCache* nmethod::exception_cache_entry_for_exception(Handle exception) { | |
| 280 ExceptionCache* ec = exception_cache(); | |
| 281 while (ec != NULL) { | |
| 282 if (ec->match_exception_with_space(exception)) { | |
| 283 return ec; | |
| 284 } | |
| 285 ec = ec->next(); | |
| 286 } | |
| 287 return NULL; | |
| 288 } | |
| 289 | |
| 290 | |
| 291 //----------------------------------------------------------------------------- | |
| 292 | |
| 293 | |
| 294 // Helper used by both find_pc_desc methods. | |
| 295 static inline bool match_desc(PcDesc* pc, int pc_offset, bool approximate) { | |
| 296 NOT_PRODUCT(++nmethod_stats.pc_desc_tests); | |
| 297 if (!approximate) | |
| 298 return pc->pc_offset() == pc_offset; | |
| 299 else | |
| 300 return (pc-1)->pc_offset() < pc_offset && pc_offset <= pc->pc_offset(); | |
| 301 } | |
| 302 | |
| 303 void PcDescCache::reset_to(PcDesc* initial_pc_desc) { | |
| 304 if (initial_pc_desc == NULL) { | |
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305 _pc_descs[0] = NULL; // native method; no PcDescs at all |
| 0 | 306 return; |
| 307 } | |
| 308 NOT_PRODUCT(++nmethod_stats.pc_desc_resets); | |
| 309 // reset the cache by filling it with benign (non-null) values | |
| 310 assert(initial_pc_desc->pc_offset() < 0, "must be sentinel"); | |
| 311 for (int i = 0; i < cache_size; i++) | |
| 312 _pc_descs[i] = initial_pc_desc; | |
| 313 } | |
| 314 | |
| 315 PcDesc* PcDescCache::find_pc_desc(int pc_offset, bool approximate) { | |
| 316 NOT_PRODUCT(++nmethod_stats.pc_desc_queries); | |
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317 NOT_PRODUCT(if (approximate) ++nmethod_stats.pc_desc_approx); |
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318 |
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319 // Note: one might think that caching the most recently |
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320 // read value separately would be a win, but one would be |
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321 // wrong. When many threads are updating it, the cache |
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322 // line it's in would bounce between caches, negating |
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323 // any benefit. |
| 0 | 324 |
| 325 // In order to prevent race conditions do not load cache elements | |
| 326 // repeatedly, but use a local copy: | |
| 327 PcDesc* res; | |
| 328 | |
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329 // Step one: Check the most recently added value. |
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330 res = _pc_descs[0]; |
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331 if (res == NULL) return NULL; // native method; no PcDescs at all |
| 0 | 332 if (match_desc(res, pc_offset, approximate)) { |
| 333 NOT_PRODUCT(++nmethod_stats.pc_desc_repeats); | |
| 334 return res; | |
| 335 } | |
| 336 | |
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337 // Step two: Check the rest of the LRU cache. |
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338 for (int i = 1; i < cache_size; ++i) { |
| 0 | 339 res = _pc_descs[i]; |
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340 if (res->pc_offset() < 0) break; // optimization: skip empty cache |
| 0 | 341 if (match_desc(res, pc_offset, approximate)) { |
| 342 NOT_PRODUCT(++nmethod_stats.pc_desc_hits); | |
| 343 return res; | |
| 344 } | |
| 345 } | |
| 346 | |
| 347 // Report failure. | |
| 348 return NULL; | |
| 349 } | |
| 350 | |
| 351 void PcDescCache::add_pc_desc(PcDesc* pc_desc) { | |
| 352 NOT_PRODUCT(++nmethod_stats.pc_desc_adds); | |
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353 // Update the LRU cache by shifting pc_desc forward. |
| 0 | 354 for (int i = 0; i < cache_size; i++) { |
| 355 PcDesc* next = _pc_descs[i]; | |
| 356 _pc_descs[i] = pc_desc; | |
| 357 pc_desc = next; | |
| 358 } | |
| 359 } | |
| 360 | |
| 361 // adjust pcs_size so that it is a multiple of both oopSize and | |
| 362 // sizeof(PcDesc) (assumes that if sizeof(PcDesc) is not a multiple | |
| 363 // of oopSize, then 2*sizeof(PcDesc) is) | |
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364 static int adjust_pcs_size(int pcs_size) { |
| 0 | 365 int nsize = round_to(pcs_size, oopSize); |
| 366 if ((nsize % sizeof(PcDesc)) != 0) { | |
| 367 nsize = pcs_size + sizeof(PcDesc); | |
| 368 } | |
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369 assert((nsize % oopSize) == 0, "correct alignment"); |
| 0 | 370 return nsize; |
| 371 } | |
| 372 | |
| 373 //----------------------------------------------------------------------------- | |
| 374 | |
| 375 | |
| 376 void nmethod::add_exception_cache_entry(ExceptionCache* new_entry) { | |
| 377 assert(ExceptionCache_lock->owned_by_self(),"Must hold the ExceptionCache_lock"); | |
| 378 assert(new_entry != NULL,"Must be non null"); | |
| 379 assert(new_entry->next() == NULL, "Must be null"); | |
| 380 | |
| 381 if (exception_cache() != NULL) { | |
| 382 new_entry->set_next(exception_cache()); | |
| 383 } | |
| 384 set_exception_cache(new_entry); | |
| 385 } | |
| 386 | |
| 387 void nmethod::remove_from_exception_cache(ExceptionCache* ec) { | |
| 388 ExceptionCache* prev = NULL; | |
| 389 ExceptionCache* curr = exception_cache(); | |
| 390 assert(curr != NULL, "nothing to remove"); | |
| 391 // find the previous and next entry of ec | |
| 392 while (curr != ec) { | |
| 393 prev = curr; | |
| 394 curr = curr->next(); | |
| 395 assert(curr != NULL, "ExceptionCache not found"); | |
| 396 } | |
| 397 // now: curr == ec | |
| 398 ExceptionCache* next = curr->next(); | |
| 399 if (prev == NULL) { | |
| 400 set_exception_cache(next); | |
| 401 } else { | |
| 402 prev->set_next(next); | |
| 403 } | |
| 404 delete curr; | |
| 405 } | |
| 406 | |
| 407 | |
| 408 // public method for accessing the exception cache | |
| 409 // These are the public access methods. | |
| 410 address nmethod::handler_for_exception_and_pc(Handle exception, address pc) { | |
| 411 // We never grab a lock to read the exception cache, so we may | |
| 412 // have false negatives. This is okay, as it can only happen during | |
| 413 // the first few exception lookups for a given nmethod. | |
| 414 ExceptionCache* ec = exception_cache(); | |
| 415 while (ec != NULL) { | |
| 416 address ret_val; | |
| 417 if ((ret_val = ec->match(exception,pc)) != NULL) { | |
| 418 return ret_val; | |
| 419 } | |
| 420 ec = ec->next(); | |
| 421 } | |
| 422 return NULL; | |
| 423 } | |
| 424 | |
| 425 | |
| 426 void nmethod::add_handler_for_exception_and_pc(Handle exception, address pc, address handler) { | |
| 427 // There are potential race conditions during exception cache updates, so we | |
| 428 // must own the ExceptionCache_lock before doing ANY modifications. Because | |
| 605 | 429 // we don't lock during reads, it is possible to have several threads attempt |
| 0 | 430 // to update the cache with the same data. We need to check for already inserted |
| 431 // copies of the current data before adding it. | |
| 432 | |
| 433 MutexLocker ml(ExceptionCache_lock); | |
| 434 ExceptionCache* target_entry = exception_cache_entry_for_exception(exception); | |
| 435 | |
| 436 if (target_entry == NULL || !target_entry->add_address_and_handler(pc,handler)) { | |
| 437 target_entry = new ExceptionCache(exception,pc,handler); | |
| 438 add_exception_cache_entry(target_entry); | |
| 439 } | |
| 440 } | |
| 441 | |
| 442 | |
| 443 //-------------end of code for ExceptionCache-------------- | |
| 444 | |
| 445 | |
| 446 int nmethod::total_size() const { | |
| 447 return | |
|
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448 consts_size() + |
| 1748 | 449 insts_size() + |
| 0 | 450 stub_size() + |
| 451 scopes_data_size() + | |
| 452 scopes_pcs_size() + | |
| 453 handler_table_size() + | |
| 454 nul_chk_table_size(); | |
| 455 } | |
| 456 | |
| 457 const char* nmethod::compile_kind() const { | |
| 458 if (is_osr_method()) return "osr"; | |
|
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459 if (method() != NULL && is_native_method()) return "c2n"; |
| 0 | 460 return NULL; |
| 461 } | |
| 462 | |
|
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463 // Fill in default values for various flag fields |
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464 void nmethod::init_defaults() { |
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465 _state = alive; |
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466 _marked_for_reclamation = 0; |
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467 _has_flushed_dependencies = 0; |
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468 _speculatively_disconnected = 0; |
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469 _has_unsafe_access = 0; |
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470 _has_method_handle_invokes = 0; |
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471 _lazy_critical_native = 0; |
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472 _has_wide_vectors = 0; |
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473 _marked_for_deoptimization = 0; |
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474 _lock_count = 0; |
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475 _stack_traversal_mark = 0; |
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476 _unload_reported = false; // jvmti state |
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477 |
| 1726 | 478 #ifdef ASSERT |
| 479 _oops_are_stale = false; | |
| 480 #endif | |
| 481 | |
|
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482 _oops_do_mark_link = NULL; |
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483 _jmethod_id = NULL; |
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484 _osr_link = NULL; |
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485 _scavenge_root_link = NULL; |
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486 _scavenge_root_state = 0; |
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487 _saved_nmethod_link = NULL; |
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488 _compiler = NULL; |
| 9707 | 489 #ifdef GRAAL |
| 490 _graal_installed_code = NULL; | |
| 491 _triggered_deoptimizations = NULL; | |
| 492 #endif | |
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493 #ifdef HAVE_DTRACE_H |
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494 _trap_offset = 0; |
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495 #endif // def HAVE_DTRACE_H |
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496 } |
| 0 | 497 |
| 498 nmethod* nmethod::new_native_nmethod(methodHandle method, | |
|
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499 int compile_id, |
| 0 | 500 CodeBuffer *code_buffer, |
| 501 int vep_offset, | |
| 502 int frame_complete, | |
| 503 int frame_size, | |
| 504 ByteSize basic_lock_owner_sp_offset, | |
| 505 ByteSize basic_lock_sp_offset, | |
| 506 OopMapSet* oop_maps) { | |
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507 code_buffer->finalize_oop_references(method); |
| 0 | 508 // create nmethod |
| 509 nmethod* nm = NULL; | |
| 510 { | |
| 511 MutexLockerEx mu(CodeCache_lock, Mutex::_no_safepoint_check_flag); | |
| 512 int native_nmethod_size = allocation_size(code_buffer, sizeof(nmethod)); | |
|
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513 CodeOffsets offsets; |
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514 offsets.set_value(CodeOffsets::Verified_Entry, vep_offset); |
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515 offsets.set_value(CodeOffsets::Frame_Complete, frame_complete); |
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516 nm = new (native_nmethod_size) nmethod(method(), native_nmethod_size, |
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517 compile_id, &offsets, |
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518 code_buffer, frame_size, |
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519 basic_lock_owner_sp_offset, |
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520 basic_lock_sp_offset, oop_maps); |
|
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521 if (nm != NULL) nmethod_stats.note_native_nmethod(nm); |
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522 if (PrintAssembly && nm != NULL) { |
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523 Disassembler::decode(nm); |
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524 } |
| 0 | 525 } |
| 526 // verify nmethod | |
| 527 debug_only(if (nm) nm->verify();) // might block | |
| 528 | |
| 529 if (nm != NULL) { | |
| 530 nm->log_new_nmethod(); | |
| 531 } | |
| 532 | |
| 533 return nm; | |
| 534 } | |
| 535 | |
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536 #ifdef HAVE_DTRACE_H |
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537 nmethod* nmethod::new_dtrace_nmethod(methodHandle method, |
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538 CodeBuffer *code_buffer, |
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539 int vep_offset, |
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540 int trap_offset, |
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541 int frame_complete, |
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542 int frame_size) { |
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543 code_buffer->finalize_oop_references(method); |
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544 // create nmethod |
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545 nmethod* nm = NULL; |
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546 { |
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547 MutexLockerEx mu(CodeCache_lock, Mutex::_no_safepoint_check_flag); |
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548 int nmethod_size = allocation_size(code_buffer, sizeof(nmethod)); |
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549 CodeOffsets offsets; |
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550 offsets.set_value(CodeOffsets::Verified_Entry, vep_offset); |
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551 offsets.set_value(CodeOffsets::Dtrace_trap, trap_offset); |
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552 offsets.set_value(CodeOffsets::Frame_Complete, frame_complete); |
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553 |
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554 nm = new (nmethod_size) nmethod(method(), nmethod_size, |
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555 &offsets, code_buffer, frame_size); |
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556 |
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557 if (nm != NULL) nmethod_stats.note_nmethod(nm); |
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558 if (PrintAssembly && nm != NULL) { |
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559 Disassembler::decode(nm); |
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560 } |
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561 } |
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562 // verify nmethod |
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563 debug_only(if (nm) nm->verify();) // might block |
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564 |
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565 if (nm != NULL) { |
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566 nm->log_new_nmethod(); |
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567 } |
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568 |
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569 return nm; |
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570 } |
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571 |
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572 #endif // def HAVE_DTRACE_H |
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573 |
| 0 | 574 nmethod* nmethod::new_nmethod(methodHandle method, |
| 575 int compile_id, | |
| 576 int entry_bci, | |
| 577 CodeOffsets* offsets, | |
| 578 int orig_pc_offset, | |
| 579 DebugInformationRecorder* debug_info, | |
| 580 Dependencies* dependencies, | |
| 581 CodeBuffer* code_buffer, int frame_size, | |
| 582 OopMapSet* oop_maps, | |
| 583 ExceptionHandlerTable* handler_table, | |
| 584 ImplicitExceptionTable* nul_chk_table, | |
| 585 AbstractCompiler* compiler, | |
| 9707 | 586 int comp_level, |
| 587 GrowableArray<jlong>* leaf_graph_ids | |
| 588 #ifdef GRAAL | |
| 589 , Handle installed_code, | |
| 590 Handle triggered_deoptimizations | |
| 591 #endif | |
| 0 | 592 ) |
| 593 { | |
| 594 assert(debug_info->oop_recorder() == code_buffer->oop_recorder(), "shared OR"); | |
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595 code_buffer->finalize_oop_references(method); |
| 9707 | 596 int leaf_graph_ids_size = leaf_graph_ids == NULL ? 0 : round_to(sizeof(jlong) * leaf_graph_ids->length(), oopSize); |
| 0 | 597 // create nmethod |
| 598 nmethod* nm = NULL; | |
| 599 { MutexLockerEx mu(CodeCache_lock, Mutex::_no_safepoint_check_flag); | |
| 600 int nmethod_size = | |
| 601 allocation_size(code_buffer, sizeof(nmethod)) | |
| 602 + adjust_pcs_size(debug_info->pcs_size()) | |
| 603 + round_to(dependencies->size_in_bytes() , oopSize) | |
| 604 + round_to(handler_table->size_in_bytes(), oopSize) | |
| 605 + round_to(nul_chk_table->size_in_bytes(), oopSize) | |
| 9707 | 606 + round_to(debug_info->data_size() , oopSize) |
| 8883 | 607 + leaf_graph_ids_size; |
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608 nm = new (nmethod_size) |
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609 nmethod(method(), nmethod_size, compile_id, entry_bci, offsets, |
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610 orig_pc_offset, debug_info, dependencies, code_buffer, frame_size, |
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611 oop_maps, |
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612 handler_table, |
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613 nul_chk_table, |
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614 compiler, |
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615 comp_level, |
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616 leaf_graph_ids |
| 9707 | 617 #ifdef GRAAL |
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618 , installed_code, |
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619 triggered_deoptimizations |
| 9707 | 620 #endif |
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621 ); |
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622 |
| 0 | 623 if (nm != NULL) { |
| 624 // To make dependency checking during class loading fast, record | |
| 625 // the nmethod dependencies in the classes it is dependent on. | |
| 626 // This allows the dependency checking code to simply walk the | |
| 627 // class hierarchy above the loaded class, checking only nmethods | |
| 628 // which are dependent on those classes. The slow way is to | |
| 629 // check every nmethod for dependencies which makes it linear in | |
| 630 // the number of methods compiled. For applications with a lot | |
| 631 // classes the slow way is too slow. | |
| 632 for (Dependencies::DepStream deps(nm); deps.next(); ) { | |
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633 Klass* klass = deps.context_type(); |
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634 if (klass == NULL) { |
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635 continue; // ignore things like evol_method |
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636 } |
| 0 | 637 |
| 638 // record this nmethod as dependent on this klass | |
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639 InstanceKlass::cast(klass)->add_dependent_nmethod(nm); |
| 0 | 640 } |
| 641 } | |
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642 if (nm != NULL) nmethod_stats.note_nmethod(nm); |
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643 if (PrintAssembly && nm != NULL) { |
| 0 | 644 Disassembler::decode(nm); |
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645 } |
| 0 | 646 } |
| 647 | |
| 648 // verify nmethod | |
| 649 debug_only(if (nm) nm->verify();) // might block | |
| 650 | |
| 651 if (nm != NULL) { | |
| 652 nm->log_new_nmethod(); | |
| 653 } | |
| 654 | |
| 655 // done | |
| 656 return nm; | |
| 657 } | |
| 658 | |
| 659 | |
| 660 // For native wrappers | |
| 661 nmethod::nmethod( | |
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662 Method* method, |
| 0 | 663 int nmethod_size, |
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664 int compile_id, |
| 0 | 665 CodeOffsets* offsets, |
| 666 CodeBuffer* code_buffer, | |
| 667 int frame_size, | |
| 668 ByteSize basic_lock_owner_sp_offset, | |
| 669 ByteSize basic_lock_sp_offset, | |
| 670 OopMapSet* oop_maps ) | |
| 671 : CodeBlob("native nmethod", code_buffer, sizeof(nmethod), | |
| 672 nmethod_size, offsets->value(CodeOffsets::Frame_Complete), frame_size, oop_maps), | |
| 2019 | 673 _native_receiver_sp_offset(basic_lock_owner_sp_offset), |
| 674 _native_basic_lock_sp_offset(basic_lock_sp_offset) | |
| 0 | 675 { |
| 676 { | |
| 677 debug_only(No_Safepoint_Verifier nsv;) | |
| 678 assert_locked_or_safepoint(CodeCache_lock); | |
| 679 | |
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680 init_defaults(); |
| 0 | 681 _method = method; |
| 682 _entry_bci = InvocationEntryBci; | |
| 683 // We have no exception handler or deopt handler make the | |
| 684 // values something that will never match a pc like the nmethod vtable entry | |
| 685 _exception_offset = 0; | |
| 686 _deoptimize_offset = 0; | |
| 1204 | 687 _deoptimize_mh_offset = 0; |
| 0 | 688 _orig_pc_offset = 0; |
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689 |
| 1748 | 690 _consts_offset = data_offset(); |
| 0 | 691 _stub_offset = data_offset(); |
|
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692 _oops_offset = data_offset(); |
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693 _metadata_offset = _oops_offset + round_to(code_buffer->total_oop_size(), oopSize); |
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694 _scopes_data_offset = _metadata_offset + round_to(code_buffer->total_metadata_size(), wordSize); |
| 0 | 695 _scopes_pcs_offset = _scopes_data_offset; |
| 696 _dependencies_offset = _scopes_pcs_offset; | |
| 697 _handler_table_offset = _dependencies_offset; | |
| 698 _nul_chk_table_offset = _handler_table_offset; | |
| 9707 | 699 _leaf_graph_ids_offset = _nul_chk_table_offset; |
| 700 _nmethod_end_offset = _leaf_graph_ids_offset; | |
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701 _compile_id = compile_id; |
| 0 | 702 _comp_level = CompLevel_none; |
| 1748 | 703 _entry_point = code_begin() + offsets->value(CodeOffsets::Entry); |
| 704 _verified_entry_point = code_begin() + offsets->value(CodeOffsets::Verified_Entry); | |
| 0 | 705 _osr_entry_point = NULL; |
| 706 _exception_cache = NULL; | |
| 707 _pc_desc_cache.reset_to(NULL); | |
| 708 | |
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709 code_buffer->copy_values_to(this); |
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710 if (ScavengeRootsInCode && detect_scavenge_root_oops()) { |
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711 CodeCache::add_scavenge_root_nmethod(this); |
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712 } |
|
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713 debug_only(verify_scavenge_root_oops()); |
| 0 | 714 CodeCache::commit(this); |
| 715 } | |
| 716 | |
| 717 if (PrintNativeNMethods || PrintDebugInfo || PrintRelocations || PrintDependencies) { | |
| 718 ttyLocker ttyl; // keep the following output all in one block | |
| 719 // This output goes directly to the tty, not the compiler log. | |
| 720 // To enable tools to match it up with the compilation activity, | |
| 721 // be sure to tag this tty output with the compile ID. | |
| 722 if (xtty != NULL) { | |
| 723 xtty->begin_head("print_native_nmethod"); | |
| 724 xtty->method(_method); | |
| 725 xtty->stamp(); | |
| 726 xtty->end_head(" address='" INTPTR_FORMAT "'", (intptr_t) this); | |
| 727 } | |
| 728 // print the header part first | |
| 729 print(); | |
| 730 // then print the requested information | |
| 731 if (PrintNativeNMethods) { | |
| 732 print_code(); | |
|
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733 if (oop_maps != NULL) { |
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734 oop_maps->print(); |
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735 } |
| 0 | 736 } |
| 737 if (PrintRelocations) { | |
| 738 print_relocations(); | |
| 739 } | |
| 740 if (xtty != NULL) { | |
| 741 xtty->tail("print_native_nmethod"); | |
| 742 } | |
| 743 } | |
| 744 } | |
| 745 | |
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746 // For dtrace wrappers |
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747 #ifdef HAVE_DTRACE_H |
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748 nmethod::nmethod( |
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749 Method* method, |
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750 int nmethod_size, |
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751 CodeOffsets* offsets, |
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752 CodeBuffer* code_buffer, |
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753 int frame_size) |
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754 : CodeBlob("dtrace nmethod", code_buffer, sizeof(nmethod), |
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755 nmethod_size, offsets->value(CodeOffsets::Frame_Complete), frame_size, NULL), |
| 2019 | 756 _native_receiver_sp_offset(in_ByteSize(-1)), |
| 757 _native_basic_lock_sp_offset(in_ByteSize(-1)) | |
|
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758 { |
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759 { |
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760 debug_only(No_Safepoint_Verifier nsv;) |
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761 assert_locked_or_safepoint(CodeCache_lock); |
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762 |
|
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763 init_defaults(); |
|
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764 _method = method; |
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765 _entry_bci = InvocationEntryBci; |
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766 // We have no exception handler or deopt handler make the |
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767 // values something that will never match a pc like the nmethod vtable entry |
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768 _exception_offset = 0; |
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769 _deoptimize_offset = 0; |
| 1204 | 770 _deoptimize_mh_offset = 0; |
|
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771 _unwind_handler_offset = -1; |
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772 _trap_offset = offsets->value(CodeOffsets::Dtrace_trap); |
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773 _orig_pc_offset = 0; |
| 1748 | 774 _consts_offset = data_offset(); |
|
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775 _stub_offset = data_offset(); |
|
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776 _oops_offset = data_offset(); |
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777 _metadata_offset = _oops_offset + round_to(code_buffer->total_oop_size(), oopSize); |
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778 _scopes_data_offset = _metadata_offset + round_to(code_buffer->total_metadata_size(), wordSize); |
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779 _scopes_pcs_offset = _scopes_data_offset; |
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780 _dependencies_offset = _scopes_pcs_offset; |
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781 _handler_table_offset = _dependencies_offset; |
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782 _nul_chk_table_offset = _handler_table_offset; |
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783 _nmethod_end_offset = _nul_chk_table_offset; |
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784 _compile_id = 0; // default |
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785 _comp_level = CompLevel_none; |
| 1748 | 786 _entry_point = code_begin() + offsets->value(CodeOffsets::Entry); |
| 787 _verified_entry_point = code_begin() + offsets->value(CodeOffsets::Verified_Entry); | |
|
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788 _osr_entry_point = NULL; |
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789 _exception_cache = NULL; |
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790 _pc_desc_cache.reset_to(NULL); |
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791 |
|
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792 code_buffer->copy_values_to(this); |
|
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793 debug_only(verify_scavenge_root_oops()); |
|
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794 CodeCache::commit(this); |
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795 } |
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796 |
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797 if (PrintNMethods || PrintDebugInfo || PrintRelocations || PrintDependencies) { |
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798 ttyLocker ttyl; // keep the following output all in one block |
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799 // This output goes directly to the tty, not the compiler log. |
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800 // To enable tools to match it up with the compilation activity, |
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801 // be sure to tag this tty output with the compile ID. |
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802 if (xtty != NULL) { |
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803 xtty->begin_head("print_dtrace_nmethod"); |
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804 xtty->method(_method); |
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805 xtty->stamp(); |
|
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806 xtty->end_head(" address='" INTPTR_FORMAT "'", (intptr_t) this); |
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807 } |
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808 // print the header part first |
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809 print(); |
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810 // then print the requested information |
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811 if (PrintNMethods) { |
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812 print_code(); |
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813 } |
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814 if (PrintRelocations) { |
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815 print_relocations(); |
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816 } |
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817 if (xtty != NULL) { |
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818 xtty->tail("print_dtrace_nmethod"); |
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819 } |
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820 } |
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821 } |
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822 #endif // def HAVE_DTRACE_H |
| 0 | 823 |
|
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824 void* nmethod::operator new(size_t size, int nmethod_size) throw () { |
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825 // Not critical, may return null if there is too little continuous memory |
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826 return CodeCache::allocate(nmethod_size); |
| 0 | 827 } |
| 828 | |
| 829 nmethod::nmethod( | |
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830 Method* method, |
| 0 | 831 int nmethod_size, |
| 832 int compile_id, | |
| 833 int entry_bci, | |
| 834 CodeOffsets* offsets, | |
| 835 int orig_pc_offset, | |
| 836 DebugInformationRecorder* debug_info, | |
| 837 Dependencies* dependencies, | |
| 838 CodeBuffer *code_buffer, | |
| 839 int frame_size, | |
| 840 OopMapSet* oop_maps, | |
| 841 ExceptionHandlerTable* handler_table, | |
| 842 ImplicitExceptionTable* nul_chk_table, | |
| 843 AbstractCompiler* compiler, | |
| 9707 | 844 int comp_level, |
| 845 GrowableArray<jlong>* leaf_graph_ids | |
| 846 #ifdef GRAAL | |
| 847 , Handle installed_code, | |
| 848 Handle triggered_deoptimizations | |
| 849 #endif | |
| 0 | 850 ) |
| 851 : CodeBlob("nmethod", code_buffer, sizeof(nmethod), | |
| 852 nmethod_size, offsets->value(CodeOffsets::Frame_Complete), frame_size, oop_maps), | |
| 2019 | 853 _native_receiver_sp_offset(in_ByteSize(-1)), |
| 854 _native_basic_lock_sp_offset(in_ByteSize(-1)) | |
| 0 | 855 { |
| 856 assert(debug_info->oop_recorder() == code_buffer->oop_recorder(), "shared OR"); | |
| 857 { | |
| 858 debug_only(No_Safepoint_Verifier nsv;) | |
| 859 assert_locked_or_safepoint(CodeCache_lock); | |
| 860 | |
|
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861 init_defaults(); |
| 0 | 862 _method = method; |
|
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863 _entry_bci = entry_bci; |
| 0 | 864 _compile_id = compile_id; |
| 865 _comp_level = comp_level; | |
| 866 _compiler = compiler; | |
| 867 _orig_pc_offset = orig_pc_offset; | |
| 1748 | 868 |
| 869 // Section offsets | |
|
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870 _consts_offset = content_offset() + code_buffer->total_offset_of(code_buffer->consts()); |
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871 _stub_offset = content_offset() + code_buffer->total_offset_of(code_buffer->stubs()); |
| 0 | 872 |
| 9707 | 873 #ifdef GRAAL |
| 874 _graal_installed_code = installed_code(); | |
| 875 _triggered_deoptimizations = (typeArrayOop)triggered_deoptimizations(); | |
| 876 #endif | |
| 877 if (compiler->is_graal()) { | |
| 878 // Graal might not produce any stub sections | |
| 879 if (offsets->value(CodeOffsets::Exceptions) != -1) { | |
| 880 _exception_offset = code_offset() + offsets->value(CodeOffsets::Exceptions); | |
| 881 } else { | |
| 882 _exception_offset = -1; | |
| 883 } | |
| 884 if (offsets->value(CodeOffsets::Deopt) != -1) { | |
| 885 _deoptimize_offset = code_offset() + offsets->value(CodeOffsets::Deopt); | |
| 886 } else { | |
| 887 _deoptimize_offset = -1; | |
| 888 } | |
| 889 if (offsets->value(CodeOffsets::DeoptMH) != -1) { | |
| 890 _deoptimize_mh_offset = code_offset() + offsets->value(CodeOffsets::DeoptMH); | |
| 891 } else { | |
| 892 _deoptimize_mh_offset = -1; | |
| 893 } | |
|
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894 } else { |
| 9707 | 895 // Exception handler and deopt handler are in the stub section |
| 896 assert(offsets->value(CodeOffsets::Exceptions) != -1, "must be set"); | |
| 897 assert(offsets->value(CodeOffsets::Deopt ) != -1, "must be set"); | |
| 898 | |
| 899 _exception_offset = _stub_offset + offsets->value(CodeOffsets::Exceptions); | |
| 900 _deoptimize_offset = _stub_offset + offsets->value(CodeOffsets::Deopt); | |
| 901 if (offsets->value(CodeOffsets::DeoptMH) != -1) { | |
| 902 _deoptimize_mh_offset = _stub_offset + offsets->value(CodeOffsets::DeoptMH); | |
| 903 } else { | |
| 904 _deoptimize_mh_offset = -1; | |
| 905 } | |
|
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906 } |
|
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907 if (offsets->value(CodeOffsets::UnwindHandler) != -1) { |
| 1748 | 908 _unwind_handler_offset = code_offset() + offsets->value(CodeOffsets::UnwindHandler); |
|
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909 } else { |
| 1748 | 910 _unwind_handler_offset = -1; |
|
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911 } |
| 1748 | 912 |
| 9707 | 913 int leaf_graph_ids_size = leaf_graph_ids == NULL ? 0 : round_to(sizeof(jlong) * leaf_graph_ids->length(), oopSize); |
| 914 | |
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915 _oops_offset = data_offset(); |
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916 _metadata_offset = _oops_offset + round_to(code_buffer->total_oop_size(), oopSize); |
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917 _scopes_data_offset = _metadata_offset + round_to(code_buffer->total_metadata_size(), wordSize); |
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918 |
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919 _scopes_pcs_offset = _scopes_data_offset + round_to(debug_info->data_size (), oopSize); |
| 0 | 920 _dependencies_offset = _scopes_pcs_offset + adjust_pcs_size(debug_info->pcs_size()); |
| 921 _handler_table_offset = _dependencies_offset + round_to(dependencies->size_in_bytes (), oopSize); | |
| 922 _nul_chk_table_offset = _handler_table_offset + round_to(handler_table->size_in_bytes(), oopSize); | |
| 9707 | 923 _leaf_graph_ids_offset = _nul_chk_table_offset + round_to(nul_chk_table->size_in_bytes(), oopSize); |
| 924 _nmethod_end_offset = _leaf_graph_ids_offset + leaf_graph_ids_size; | |
| 0 | 925 |
| 1748 | 926 _entry_point = code_begin() + offsets->value(CodeOffsets::Entry); |
| 927 _verified_entry_point = code_begin() + offsets->value(CodeOffsets::Verified_Entry); | |
| 928 _osr_entry_point = code_begin() + offsets->value(CodeOffsets::OSR_Entry); | |
| 0 | 929 _exception_cache = NULL; |
| 930 _pc_desc_cache.reset_to(scopes_pcs_begin()); | |
| 931 | |
| 932 // Copy contents of ScopeDescRecorder to nmethod | |
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933 code_buffer->copy_values_to(this); |
| 0 | 934 debug_info->copy_to(this); |
| 935 dependencies->copy_to(this); | |
|
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936 if (ScavengeRootsInCode && detect_scavenge_root_oops()) { |
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937 CodeCache::add_scavenge_root_nmethod(this); |
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938 } |
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939 debug_only(verify_scavenge_root_oops()); |
| 0 | 940 |
| 941 CodeCache::commit(this); | |
| 942 | |
| 943 // Copy contents of ExceptionHandlerTable to nmethod | |
| 944 handler_table->copy_to(this); | |
| 945 nul_chk_table->copy_to(this); | |
| 946 | |
| 9707 | 947 if (leaf_graph_ids != NULL && leaf_graph_ids_size > 0) { |
| 948 memcpy(leaf_graph_ids_begin(), leaf_graph_ids->adr_at(0), leaf_graph_ids_size); | |
| 949 } | |
| 950 | |
| 0 | 951 // we use the information of entry points to find out if a method is |
| 952 // static or non static | |
|
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953 assert(compiler->is_c2() || compiler->is_graal() || |
| 0 | 954 _method->is_static() == (entry_point() == _verified_entry_point), |
| 955 " entry points must be same for static methods and vice versa"); | |
| 956 } | |
| 957 | |
|
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958 bool printnmethods = PrintNMethods |
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959 || CompilerOracle::should_print(_method) |
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960 || CompilerOracle::has_option_string(_method, "PrintNMethods"); |
| 0 | 961 if (printnmethods || PrintDebugInfo || PrintRelocations || PrintDependencies || PrintExceptionHandlers) { |
| 962 print_nmethod(printnmethods); | |
| 963 } | |
| 964 } | |
| 965 | |
| 966 | |
| 967 // Print a short set of xml attributes to identify this nmethod. The | |
| 968 // output should be embedded in some other element. | |
| 969 void nmethod::log_identity(xmlStream* log) const { | |
| 970 log->print(" compile_id='%d'", compile_id()); | |
| 971 const char* nm_kind = compile_kind(); | |
| 972 if (nm_kind != NULL) log->print(" compile_kind='%s'", nm_kind); | |
| 973 if (compiler() != NULL) { | |
| 974 log->print(" compiler='%s'", compiler()->name()); | |
| 975 } | |
| 1783 | 976 if (TieredCompilation) { |
| 977 log->print(" level='%d'", comp_level()); | |
| 978 } | |
| 0 | 979 } |
| 980 | |
| 981 | |
| 982 #define LOG_OFFSET(log, name) \ | |
| 983 if ((intptr_t)name##_end() - (intptr_t)name##_begin()) \ | |
| 984 log->print(" " XSTR(name) "_offset='%d'" , \ | |
| 985 (intptr_t)name##_begin() - (intptr_t)this) | |
| 986 | |
| 987 | |
| 988 void nmethod::log_new_nmethod() const { | |
| 989 if (LogCompilation && xtty != NULL) { | |
| 990 ttyLocker ttyl; | |
| 991 HandleMark hm; | |
| 992 xtty->begin_elem("nmethod"); | |
| 993 log_identity(xtty); | |
| 1748 | 994 xtty->print(" entry='" INTPTR_FORMAT "' size='%d'", code_begin(), size()); |
| 0 | 995 xtty->print(" address='" INTPTR_FORMAT "'", (intptr_t) this); |
| 996 | |
| 997 LOG_OFFSET(xtty, relocation); | |
|
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998 LOG_OFFSET(xtty, consts); |
| 1748 | 999 LOG_OFFSET(xtty, insts); |
| 0 | 1000 LOG_OFFSET(xtty, stub); |
| 1001 LOG_OFFSET(xtty, scopes_data); | |
| 1002 LOG_OFFSET(xtty, scopes_pcs); | |
| 1003 LOG_OFFSET(xtty, dependencies); | |
| 1004 LOG_OFFSET(xtty, handler_table); | |
| 1005 LOG_OFFSET(xtty, nul_chk_table); | |
| 1006 LOG_OFFSET(xtty, oops); | |
| 1007 | |
| 1008 xtty->method(method()); | |
| 1009 xtty->stamp(); | |
| 1010 xtty->end_elem(); | |
| 1011 } | |
| 1012 } | |
| 1013 | |
| 1014 #undef LOG_OFFSET | |
| 1015 | |
| 1016 | |
| 1017 // Print out more verbose output usually for a newly created nmethod. | |
|
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1018 void nmethod::print_on(outputStream* st, const char* msg) const { |
| 0 | 1019 if (st != NULL) { |
| 1020 ttyLocker ttyl; | |
|
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1021 if (WizardMode) { |
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1022 CompileTask::print_compilation(st, this, msg, /*short_form:*/ true); |
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1023 st->print_cr(" (" INTPTR_FORMAT ")", this); |
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1024 } else { |
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1025 CompileTask::print_compilation(st, this, msg, /*short_form:*/ false); |
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1026 } |
| 0 | 1027 } |
| 1028 } | |
| 1029 | |
| 1030 | |
| 1031 void nmethod::print_nmethod(bool printmethod) { | |
| 1032 ttyLocker ttyl; // keep the following output all in one block | |
| 1033 if (xtty != NULL) { | |
| 1034 xtty->begin_head("print_nmethod"); | |
| 1035 xtty->stamp(); | |
| 1036 xtty->end_head(); | |
| 1037 } | |
| 1038 // print the header part first | |
| 1039 print(); | |
| 1040 // then print the requested information | |
| 1041 if (printmethod) { | |
| 1042 print_code(); | |
| 1043 print_pcs(); | |
|
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1044 if (oop_maps()) { |
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1045 oop_maps()->print(); |
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1046 } |
| 0 | 1047 } |
| 1048 if (PrintDebugInfo) { | |
| 1049 print_scopes(); | |
| 1050 } | |
| 1051 if (PrintRelocations) { | |
| 1052 print_relocations(); | |
| 1053 } | |
| 1054 if (PrintDependencies) { | |
| 1055 print_dependencies(); | |
| 1056 } | |
| 1057 if (PrintExceptionHandlers) { | |
| 1058 print_handler_table(); | |
| 1059 print_nul_chk_table(); | |
| 1060 } | |
| 1061 if (xtty != NULL) { | |
| 1062 xtty->tail("print_nmethod"); | |
| 1063 } | |
| 1064 } | |
| 1065 | |
| 1066 | |
|
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1067 // Promote one word from an assembly-time handle to a live embedded oop. |
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1068 inline void nmethod::initialize_immediate_oop(oop* dest, jobject handle) { |
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1069 if (handle == NULL || |
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1070 // As a special case, IC oops are initialized to 1 or -1. |
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1071 handle == (jobject) Universe::non_oop_word()) { |
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1072 (*dest) = (oop) handle; |
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1073 } else { |
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1074 (*dest) = JNIHandles::resolve_non_null(handle); |
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1075 } |
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1076 } |
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1077 |
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1078 |
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1079 // Have to have the same name because it's called by a template |
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1080 void nmethod::copy_values(GrowableArray<jobject>* array) { |
|
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1081 int length = array->length(); |
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1082 assert((address)(oops_begin() + length) <= (address)oops_end(), "oops big enough"); |
|
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1083 oop* dest = oops_begin(); |
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1084 for (int index = 0 ; index < length; index++) { |
|
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1085 initialize_immediate_oop(&dest[index], array->at(index)); |
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1086 } |
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1087 |
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1088 // Now we can fix up all the oops in the code. We need to do this |
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1089 // in the code because the assembler uses jobjects as placeholders. |
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1090 // The code and relocations have already been initialized by the |
|
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1091 // CodeBlob constructor, so it is valid even at this early point to |
|
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1092 // iterate over relocations and patch the code. |
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1093 fix_oop_relocations(NULL, NULL, /*initialize_immediates=*/ true); |
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1094 } |
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1095 |
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1096 void nmethod::copy_values(GrowableArray<Metadata*>* array) { |
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1097 int length = array->length(); |
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1098 assert((address)(metadata_begin() + length) <= (address)metadata_end(), "big enough"); |
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1099 Metadata** dest = metadata_begin(); |
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1100 for (int index = 0 ; index < length; index++) { |
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1101 dest[index] = array->at(index); |
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1102 } |
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1103 } |
|
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1104 |
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1105 bool nmethod::is_at_poll_return(address pc) { |
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1106 RelocIterator iter(this, pc, pc+1); |
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1107 while (iter.next()) { |
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1108 if (iter.type() == relocInfo::poll_return_type) |
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1109 return true; |
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1110 } |
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1111 return false; |
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1112 } |
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1113 |
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1114 |
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1115 bool nmethod::is_at_poll_or_poll_return(address pc) { |
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1116 RelocIterator iter(this, pc, pc+1); |
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1117 while (iter.next()) { |
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1118 relocInfo::relocType t = iter.type(); |
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1119 if (t == relocInfo::poll_return_type || t == relocInfo::poll_type) |
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1120 return true; |
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1121 } |
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1122 return false; |
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1123 } |
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1124 |
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1125 |
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1126 void nmethod::fix_oop_relocations(address begin, address end, bool initialize_immediates) { |
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1127 // re-patch all oop-bearing instructions, just in case some oops moved |
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1128 RelocIterator iter(this, begin, end); |
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1129 while (iter.next()) { |
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1130 if (iter.type() == relocInfo::oop_type) { |
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1131 oop_Relocation* reloc = iter.oop_reloc(); |
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1132 if (initialize_immediates && reloc->oop_is_immediate()) { |
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1133 oop* dest = reloc->oop_addr(); |
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1134 initialize_immediate_oop(dest, (jobject) *dest); |
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1135 } |
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1136 // Refresh the oop-related bits of this instruction. |
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1137 reloc->fix_oop_relocation(); |
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1138 } else if (iter.type() == relocInfo::metadata_type) { |
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1139 metadata_Relocation* reloc = iter.metadata_reloc(); |
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1140 reloc->fix_metadata_relocation(); |
|
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1141 } |
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1142 |
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1143 // There must not be any interfering patches or breakpoints. |
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1144 assert(!(iter.type() == relocInfo::breakpoint_type |
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1145 && iter.breakpoint_reloc()->active()), |
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1146 "no active breakpoint"); |
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1147 } |
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1148 } |
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1149 |
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1150 |
|
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1151 void nmethod::verify_oop_relocations() { |
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1152 // Ensure sure that the code matches the current oop values |
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1153 RelocIterator iter(this, NULL, NULL); |
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1154 while (iter.next()) { |
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1155 if (iter.type() == relocInfo::oop_type) { |
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1156 oop_Relocation* reloc = iter.oop_reloc(); |
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1157 if (!reloc->oop_is_immediate()) { |
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1158 reloc->verify_oop_relocation(); |
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1159 } |
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1160 } |
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1161 } |
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1162 } |
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1163 |
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1164 |
| 0 | 1165 ScopeDesc* nmethod::scope_desc_at(address pc) { |
| 1166 PcDesc* pd = pc_desc_at(pc); | |
| 1167 guarantee(pd != NULL, "scope must be present"); | |
| 1168 return new ScopeDesc(this, pd->scope_decode_offset(), | |
| 9707 | 1169 pd->obj_decode_offset(), pd->should_reexecute(), pd->rethrow_exception(), |
|
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1170 pd->return_oop()); |
| 0 | 1171 } |
| 1172 | |
| 1173 | |
| 1174 void nmethod::clear_inline_caches() { | |
| 1175 assert(SafepointSynchronize::is_at_safepoint(), "cleaning of IC's only allowed at safepoint"); | |
| 1176 if (is_zombie()) { | |
| 1177 return; | |
| 1178 } | |
| 1179 | |
| 1180 RelocIterator iter(this); | |
| 1181 while (iter.next()) { | |
| 1182 iter.reloc()->clear_inline_cache(); | |
| 1183 } | |
| 1184 } | |
| 1185 | |
| 1186 | |
| 1187 void nmethod::cleanup_inline_caches() { | |
| 1188 | |
|
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1189 assert_locked_or_safepoint(CompiledIC_lock); |
| 0 | 1190 |
| 1191 // If the method is not entrant or zombie then a JMP is plastered over the | |
| 1192 // first few bytes. If an oop in the old code was there, that oop | |
| 1193 // should not get GC'd. Skip the first few bytes of oops on | |
| 1194 // not-entrant methods. | |
| 1195 address low_boundary = verified_entry_point(); | |
| 1196 if (!is_in_use()) { | |
| 1197 low_boundary += NativeJump::instruction_size; | |
| 1198 // %%% Note: On SPARC we patch only a 4-byte trap, not a full NativeJump. | |
| 1199 // This means that the low_boundary is going to be a little too high. | |
| 1200 // This shouldn't matter, since oops of non-entrant methods are never used. | |
| 1201 // In fact, why are we bothering to look at oops in a non-entrant method?? | |
| 1202 } | |
| 1203 | |
| 1204 // Find all calls in an nmethod, and clear the ones that points to zombie methods | |
| 1205 ResourceMark rm; | |
| 1206 RelocIterator iter(this, low_boundary); | |
| 1207 while(iter.next()) { | |
| 1208 switch(iter.type()) { | |
| 1209 case relocInfo::virtual_call_type: | |
| 1210 case relocInfo::opt_virtual_call_type: { | |
| 1211 CompiledIC *ic = CompiledIC_at(iter.reloc()); | |
| 1212 // Ok, to lookup references to zombies here | |
| 1213 CodeBlob *cb = CodeCache::find_blob_unsafe(ic->ic_destination()); | |
| 1214 if( cb != NULL && cb->is_nmethod() ) { | |
| 1215 nmethod* nm = (nmethod*)cb; | |
| 1216 // Clean inline caches pointing to both zombie and not_entrant methods | |
| 1202 | 1217 if (!nm->is_in_use() || (nm->method()->code() != nm)) ic->set_to_clean(); |
| 0 | 1218 } |
| 1219 break; | |
| 1220 } | |
| 1221 case relocInfo::static_call_type: { | |
| 1222 CompiledStaticCall *csc = compiledStaticCall_at(iter.reloc()); | |
| 1223 CodeBlob *cb = CodeCache::find_blob_unsafe(csc->destination()); | |
| 1224 if( cb != NULL && cb->is_nmethod() ) { | |
| 1225 nmethod* nm = (nmethod*)cb; | |
| 1226 // Clean inline caches pointing to both zombie and not_entrant methods | |
| 1202 | 1227 if (!nm->is_in_use() || (nm->method()->code() != nm)) csc->set_to_clean(); |
| 0 | 1228 } |
| 1229 break; | |
| 1230 } | |
| 1231 } | |
| 1232 } | |
| 1233 } | |
| 1234 | |
|
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1235 // This is a private interface with the sweeper. |
| 0 | 1236 void nmethod::mark_as_seen_on_stack() { |
| 1237 assert(is_not_entrant(), "must be a non-entrant method"); | |
|
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1238 // Set the traversal mark to ensure that the sweeper does 2 |
|
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1239 // cleaning passes before moving to zombie. |
| 0 | 1240 set_stack_traversal_mark(NMethodSweeper::traversal_count()); |
| 1241 } | |
| 1242 | |
|
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1243 // Tell if a non-entrant method can be converted to a zombie (i.e., |
|
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1244 // there are no activations on the stack, not in use by the VM, |
|
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1245 // and not in use by the ServiceThread) |
| 0 | 1246 bool nmethod::can_not_entrant_be_converted() { |
| 1247 assert(is_not_entrant(), "must be a non-entrant method"); | |
| 1248 | |
| 1249 // Since the nmethod sweeper only does partial sweep the sweeper's traversal | |
| 1250 // count can be greater than the stack traversal count before it hits the | |
| 1251 // nmethod for the second time. | |
|
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1252 return stack_traversal_mark()+1 < NMethodSweeper::traversal_count() && |
|
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1253 !is_locked_by_vm(); |
| 0 | 1254 } |
| 1255 | |
| 1256 void nmethod::inc_decompile_count() { | |
| 9707 | 1257 if (!is_compiled_by_c2() && !is_compiled_by_graal()) return; |
| 0 | 1258 // Could be gated by ProfileTraps, but do not bother... |
|
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1259 Method* m = method(); |
| 0 | 1260 if (m == NULL) return; |
|
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1261 MethodData* mdo = m->method_data(); |
| 0 | 1262 if (mdo == NULL) return; |
|
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|
1263 // There is a benign race here. See comments in methodData.hpp. |
| 0 | 1264 mdo->inc_decompile_count(); |
| 1265 } | |
| 1266 | |
| 1267 void nmethod::make_unloaded(BoolObjectClosure* is_alive, oop cause) { | |
| 1268 | |
| 1269 post_compiled_method_unload(); | |
| 1270 | |
| 1271 // Since this nmethod is being unloaded, make sure that dependencies | |
| 1272 // recorded in instanceKlasses get flushed and pass non-NULL closure to | |
| 1273 // indicate that this work is being done during a GC. | |
| 1274 assert(Universe::heap()->is_gc_active(), "should only be called during gc"); | |
| 1275 assert(is_alive != NULL, "Should be non-NULL"); | |
| 1276 // A non-NULL is_alive closure indicates that this is being called during GC. | |
| 1277 flush_dependencies(is_alive); | |
| 1278 | |
| 1279 // Break cycle between nmethod & method | |
| 1280 if (TraceClassUnloading && WizardMode) { | |
| 1281 tty->print_cr("[Class unloading: Making nmethod " INTPTR_FORMAT | |
|
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1282 " unloadable], Method*(" INTPTR_FORMAT |
| 0 | 1283 "), cause(" INTPTR_FORMAT ")", |
| 1284 this, (address)_method, (address)cause); | |
|
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1285 if (!Universe::heap()->is_gc_active()) |
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1286 cause->klass()->print(); |
| 0 | 1287 } |
| 941 | 1288 // Unlink the osr method, so we do not look this up again |
| 1289 if (is_osr_method()) { | |
| 1290 invalidate_osr_method(); | |
| 1291 } | |
|
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1292 // If _method is already NULL the Method* is about to be unloaded, |
| 0 | 1293 // so we don't have to break the cycle. Note that it is possible to |
|
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1294 // have the Method* live here, in case we unload the nmethod because |
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1295 // it is pointing to some oop (other than the Method*) being unloaded. |
| 0 | 1296 if (_method != NULL) { |
|
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1297 // OSR methods point to the Method*, but the Method* does not |
| 0 | 1298 // point back! |
| 1299 if (_method->code() == this) { | |
| 1300 _method->clear_code(); // Break a cycle | |
| 1301 } | |
| 1302 _method = NULL; // Clear the method of this dead nmethod | |
| 1303 } | |
| 9707 | 1304 |
| 1305 #ifdef GRAAL | |
| 1306 // The method can only be unloaded after the pointer to the installed code | |
| 1307 // Java wrapper is no longer alive. Here we need to clear out this weak | |
| 1308 // reference to the dead object. | |
| 1309 if (_graal_installed_code != NULL) { | |
|
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1310 HotSpotInstalledCode::set_codeBlob(_graal_installed_code, 0); |
| 9707 | 1311 _graal_installed_code = NULL; |
| 1312 } | |
| 1313 #endif | |
| 1314 | |
| 0 | 1315 // Make the class unloaded - i.e., change state and notify sweeper |
|
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1316 assert(SafepointSynchronize::is_at_safepoint(), "must be at safepoint"); |
| 0 | 1317 if (is_in_use()) { |
| 1318 // Transitioning directly from live to unloaded -- so | |
| 1319 // we need to force a cache clean-up; remember this | |
| 1320 // for later on. | |
| 1321 CodeCache::set_needs_cache_clean(true); | |
| 1322 } | |
|
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1323 _state = unloaded; |
| 0 | 1324 |
|
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1325 // Log the unloading. |
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1326 log_state_change(); |
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1327 |
|
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1328 // The Method* is gone at this point |
| 0 | 1329 assert(_method == NULL, "Tautology"); |
| 1330 | |
|
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1331 set_osr_link(NULL); |
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1332 //set_scavenge_root_link(NULL); // done by prune_scavenge_root_nmethods |
| 0 | 1333 NMethodSweeper::notify(this); |
| 1334 } | |
| 1335 | |
| 1336 void nmethod::invalidate_osr_method() { | |
| 1337 assert(_entry_bci != InvocationEntryBci, "wrong kind of nmethod"); | |
| 1338 // Remove from list of active nmethods | |
| 1339 if (method() != NULL) | |
|
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|
1340 method()->method_holder()->remove_osr_nmethod(this); |
| 0 | 1341 // Set entry as invalid |
| 1342 _entry_bci = InvalidOSREntryBci; | |
| 1343 } | |
| 1344 | |
|
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1345 void nmethod::log_state_change() const { |
| 0 | 1346 if (LogCompilation) { |
| 1347 if (xtty != NULL) { | |
| 1348 ttyLocker ttyl; // keep the following output all in one block | |
|
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1349 if (_state == unloaded) { |
|
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1350 xtty->begin_elem("make_unloaded thread='" UINTX_FORMAT "'", |
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1351 os::current_thread_id()); |
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1352 } else { |
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1353 xtty->begin_elem("make_not_entrant thread='" UINTX_FORMAT "'%s", |
|
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1354 os::current_thread_id(), |
|
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1355 (_state == zombie ? " zombie='1'" : "")); |
|
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|
1356 } |
| 0 | 1357 log_identity(xtty); |
| 1358 xtty->stamp(); | |
| 1359 xtty->end_elem(); | |
| 1360 } | |
| 1361 } | |
|
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1362 if (PrintCompilation && _state != unloaded) { |
|
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|
1363 print_on(tty, _state == zombie ? "made zombie" : "made not entrant"); |
| 0 | 1364 } |
| 1365 } | |
| 1366 | |
| 1367 // Common functionality for both make_not_entrant and make_zombie | |
| 1141 | 1368 bool nmethod::make_not_entrant_or_zombie(unsigned int state) { |
| 0 | 1369 assert(state == zombie || state == not_entrant, "must be zombie or not_entrant"); |
|
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1370 assert(!is_zombie(), "should not already be a zombie"); |
| 0 | 1371 |
|
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1372 // Make sure neither the nmethod nor the method is flushed in case of a safepoint in code below. |
| 0 | 1373 nmethodLocker nml(this); |
|
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1374 methodHandle the_method(method()); |
| 1726 | 1375 No_Safepoint_Verifier nsv; |
| 0 | 1376 |
| 1377 { | |
|
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1378 // invalidate osr nmethod before acquiring the patching lock since |
|
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1379 // they both acquire leaf locks and we don't want a deadlock. |
|
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1380 // This logic is equivalent to the logic below for patching the |
|
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1381 // verified entry point of regular methods. |
|
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|
1382 if (is_osr_method()) { |
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1383 // this effectively makes the osr nmethod not entrant |
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|
1384 invalidate_osr_method(); |
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1385 } |
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1386 |
| 0 | 1387 // Enter critical section. Does not block for safepoint. |
| 1388 MutexLockerEx pl(Patching_lock, Mutex::_no_safepoint_check_flag); | |
|
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1389 |
|
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1390 if (_state == state) { |
|
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1391 // another thread already performed this transition so nothing |
|
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|
1392 // to do, but return false to indicate this. |
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1393 return false; |
|
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|
1394 } |
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1395 |
| 0 | 1396 // The caller can be calling the method statically or through an inline |
| 1397 // cache call. | |
|
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|
1398 if (!is_osr_method() && !is_not_entrant()) { |
| 9707 | 1399 address stub = SharedRuntime::get_handle_wrong_method_stub(); |
| 1400 #ifdef GRAAL | |
|
10475
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changeset
|
1401 if (_graal_installed_code != NULL) { |
|
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|
1402 // Break the link between nmethod and HotSpotInstalledCode such that the nmethod can subsequently be flushed safely. |
|
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|
1403 HotSpotInstalledCode::set_codeBlob(_graal_installed_code, 0); |
|
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diff
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|
1404 _graal_installed_code = NULL; |
| 9707 | 1405 } |
| 1406 #endif | |
| 1407 NativeJump::patch_verified_entry(entry_point(), verified_entry_point(), stub); | |
| 0 | 1408 } |
| 1409 | |
|
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1410 if (is_in_use()) { |
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1411 // It's a true state change, so mark the method as decompiled. |
|
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1412 // Do it only for transition from alive. |
|
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|
1413 inc_decompile_count(); |
|
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1414 } |
|
1206
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|
1415 |
| 0 | 1416 // Change state |
|
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1417 _state = state; |
|
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1418 |
|
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1419 // Log the transition once |
|
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1420 log_state_change(); |
|
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1421 |
|
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1422 // Remove nmethod from method. |
|
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1423 // We need to check if both the _code and _from_compiled_code_entry_point |
|
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1424 // refer to this nmethod because there is a race in setting these two fields |
|
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1425 // in Method* as seen in bugid 4947125. |
|
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1426 // If the vep() points to the zombie nmethod, the memory for the nmethod |
|
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1427 // could be flushed and the compiler and vtable stubs could still call |
|
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1428 // through it. |
|
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1429 if (method() != NULL && (method()->code() == this || |
|
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1430 method()->from_compiled_entry() == verified_entry_point())) { |
|
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1431 HandleMark hm; |
|
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1432 method()->clear_code(); |
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1433 } |
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1434 |
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1435 if (state == not_entrant) { |
|
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1436 mark_as_seen_on_stack(); |
|
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1437 } |
|
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|
1438 |
| 0 | 1439 } // leave critical region under Patching_lock |
| 1440 | |
|
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|
1441 // When the nmethod becomes zombie it is no longer alive so the |
|
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|
1442 // dependencies must be flushed. nmethods in the not_entrant |
|
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1443 // state will be flushed later when the transition to zombie |
|
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1444 // happens or they get unloaded. |
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|
1445 if (state == zombie) { |
| 1726 | 1446 { |
| 1447 // Flushing dependecies must be done before any possible | |
| 1448 // safepoint can sneak in, otherwise the oops used by the | |
| 1449 // dependency logic could have become stale. | |
| 1450 MutexLockerEx mu(CodeCache_lock, Mutex::_no_safepoint_check_flag); | |
| 1451 flush_dependencies(NULL); | |
| 1452 } | |
|
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|
1453 |
|
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1454 // zombie only - if a JVMTI agent has enabled the CompiledMethodUnload |
|
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|
1455 // event and it hasn't already been reported for this nmethod then |
|
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|
1456 // report it now. The event may have been reported earilier if the GC |
|
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|
1457 // marked it for unloading). JvmtiDeferredEventQueue support means |
|
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|
1458 // we no longer go to a safepoint here. |
|
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|
1459 post_compiled_method_unload(); |
| 1726 | 1460 |
| 1461 #ifdef ASSERT | |
| 1462 // It's no longer safe to access the oops section since zombie | |
| 1463 // nmethods aren't scanned for GC. | |
| 1464 _oops_are_stale = true; | |
| 1465 #endif | |
|
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1466 } else { |
|
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1467 assert(state == not_entrant, "other cases may need to be handled differently"); |
|
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1468 } |
|
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|
1469 |
| 0 | 1470 if (TraceCreateZombies) { |
| 9707 | 1471 ResourceMark m; |
| 1472 tty->print_cr("nmethod <" INTPTR_FORMAT "> %s code made %s", this, this->method()->name_and_sig_as_C_string(), (state == not_entrant) ? "not entrant" : "zombie"); | |
| 0 | 1473 } |
| 1474 | |
| 1475 // Make sweeper aware that there is a zombie method that needs to be removed | |
| 1476 NMethodSweeper::notify(this); | |
| 1477 | |
|
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1478 return true; |
| 0 | 1479 } |
| 1480 | |
| 1481 void nmethod::flush() { | |
| 1482 // Note that there are no valid oops in the nmethod anymore. | |
| 1483 assert(is_zombie() || (is_osr_method() && is_unloaded()), "must be a zombie method"); | |
| 1484 assert(is_marked_for_reclamation() || (is_osr_method() && is_unloaded()), "must be marked for reclamation"); | |
| 1485 | |
| 1486 assert (!is_locked_by_vm(), "locked methods shouldn't be flushed"); | |
|
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1487 assert_locked_or_safepoint(CodeCache_lock); |
| 0 | 1488 |
| 1489 // completely deallocate this method | |
|
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|
1490 Events::log(JavaThread::current(), "flushing nmethod " INTPTR_FORMAT, this); |
| 0 | 1491 if (PrintMethodFlushing) { |
| 1202 | 1492 tty->print_cr("*flushing nmethod %3d/" INTPTR_FORMAT ". Live blobs:" UINT32_FORMAT "/Free CodeCache:" SIZE_FORMAT "Kb", |
| 1493 _compile_id, this, CodeCache::nof_blobs(), CodeCache::unallocated_capacity()/1024); | |
| 0 | 1494 } |
| 1495 | |
| 1496 // We need to deallocate any ExceptionCache data. | |
| 1497 // Note that we do not need to grab the nmethod lock for this, it | |
| 1498 // better be thread safe if we're disposing of it! | |
| 1499 ExceptionCache* ec = exception_cache(); | |
| 1500 set_exception_cache(NULL); | |
| 1501 while(ec != NULL) { | |
| 1502 ExceptionCache* next = ec->next(); | |
| 1503 delete ec; | |
| 1504 ec = next; | |
| 1505 } | |
| 1506 | |
|
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|
1507 if (on_scavenge_root_list()) { |
|
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1508 CodeCache::drop_scavenge_root_nmethod(this); |
|
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|
1509 } |
|
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|
1510 |
| 1202 | 1511 if (is_speculatively_disconnected()) { |
| 1512 CodeCache::remove_saved_code(this); | |
| 1513 } | |
| 1514 | |
| 1692 | 1515 #ifdef SHARK |
|
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|
1516 ((SharkCompiler *) compiler())->free_compiled_method(insts_begin()); |
| 1692 | 1517 #endif // SHARK |
| 1518 | |
| 0 | 1519 ((CodeBlob*)(this))->flush(); |
| 1520 | |
| 1521 CodeCache::free(this); | |
| 1522 } | |
| 1523 | |
| 1524 | |
| 1525 // | |
| 1526 // Notify all classes this nmethod is dependent on that it is no | |
| 1527 // longer dependent. This should only be called in two situations. | |
| 1528 // First, when a nmethod transitions to a zombie all dependents need | |
| 1529 // to be clear. Since zombification happens at a safepoint there's no | |
| 1530 // synchronization issues. The second place is a little more tricky. | |
| 1531 // During phase 1 of mark sweep class unloading may happen and as a | |
| 1532 // result some nmethods may get unloaded. In this case the flushing | |
| 1533 // of dependencies must happen during phase 1 since after GC any | |
| 1534 // dependencies in the unloaded nmethod won't be updated, so | |
| 1535 // traversing the dependency information in unsafe. In that case this | |
| 1536 // function is called with a non-NULL argument and this function only | |
| 1537 // notifies instanceKlasses that are reachable | |
| 1538 | |
| 1539 void nmethod::flush_dependencies(BoolObjectClosure* is_alive) { | |
|
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|
1540 assert_locked_or_safepoint(CodeCache_lock); |
| 0 | 1541 assert(Universe::heap()->is_gc_active() == (is_alive != NULL), |
| 1542 "is_alive is non-NULL if and only if we are called during GC"); | |
| 1543 if (!has_flushed_dependencies()) { | |
| 1544 set_has_flushed_dependencies(); | |
| 1545 for (Dependencies::DepStream deps(this); deps.next(); ) { | |
|
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1546 Klass* klass = deps.context_type(); |
| 0 | 1547 if (klass == NULL) continue; // ignore things like evol_method |
| 1548 | |
| 1549 // During GC the is_alive closure is non-NULL, and is used to | |
| 1550 // determine liveness of dependees that need to be updated. | |
|
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1551 if (is_alive == NULL || klass->is_loader_alive(is_alive)) { |
|
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|
1552 InstanceKlass::cast(klass)->remove_dependent_nmethod(this); |
| 0 | 1553 } |
| 1554 } | |
| 1555 } | |
| 1556 } | |
| 1557 | |
| 1558 | |
| 1559 // If this oop is not live, the nmethod can be unloaded. | |
|
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|
1560 bool nmethod::can_unload(BoolObjectClosure* is_alive, oop* root, bool unloading_occurred) { |
| 0 | 1561 assert(root != NULL, "just checking"); |
| 1562 oop obj = *root; | |
| 1563 if (obj == NULL || is_alive->do_object_b(obj)) { | |
| 1564 return false; | |
| 1565 } | |
|
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|
1566 |
|
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|
1567 // If ScavengeRootsInCode is true, an nmethod might be unloaded |
|
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|
1568 // simply because one of its constant oops has gone dead. |
|
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|
1569 // No actual classes need to be unloaded in order for this to occur. |
|
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|
1570 assert(unloading_occurred || ScavengeRootsInCode, "Inconsistency in unloading"); |
| 0 | 1571 make_unloaded(is_alive, obj); |
| 1572 return true; | |
| 1573 } | |
| 1574 | |
| 1575 // ------------------------------------------------------------------ | |
| 1576 // post_compiled_method_load_event | |
| 1577 // new method for install_code() path | |
| 1578 // Transfer information from compilation to jvmti | |
| 1579 void nmethod::post_compiled_method_load_event() { | |
| 1580 | |
|
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|
1581 Method* moop = method(); |
| 4006 | 1582 #ifndef USDT2 |
| 0 | 1583 HS_DTRACE_PROBE8(hotspot, compiled__method__load, |
| 1584 moop->klass_name()->bytes(), | |
| 1585 moop->klass_name()->utf8_length(), | |
| 1586 moop->name()->bytes(), | |
| 1587 moop->name()->utf8_length(), | |
| 1588 moop->signature()->bytes(), | |
| 1589 moop->signature()->utf8_length(), | |
| 1748 | 1590 insts_begin(), insts_size()); |
| 4006 | 1591 #else /* USDT2 */ |
| 1592 HOTSPOT_COMPILED_METHOD_LOAD( | |
| 1593 (char *) moop->klass_name()->bytes(), | |
| 1594 moop->klass_name()->utf8_length(), | |
| 1595 (char *) moop->name()->bytes(), | |
| 1596 moop->name()->utf8_length(), | |
| 1597 (char *) moop->signature()->bytes(), | |
| 1598 moop->signature()->utf8_length(), | |
| 1599 insts_begin(), insts_size()); | |
| 1600 #endif /* USDT2 */ | |
| 0 | 1601 |
|
1616
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|
1602 if (JvmtiExport::should_post_compiled_method_load() || |
|
38e8278318ca
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parents:
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diff
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|
1603 JvmtiExport::should_post_compiled_method_unload()) { |
|
38e8278318ca
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parents:
1602
diff
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|
1604 get_and_cache_jmethod_id(); |
|
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diff
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|
1605 } |
|
38e8278318ca
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|
1606 |
| 0 | 1607 if (JvmtiExport::should_post_compiled_method_load()) { |
|
2195
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|
1608 // Let the Service thread (which is a real Java thread) post the event |
|
bf8517f4e4d0
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|
1609 MutexLockerEx ml(Service_lock, Mutex::_no_safepoint_check_flag); |
|
bf8517f4e4d0
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|
1610 JvmtiDeferredEventQueue::enqueue( |
|
bf8517f4e4d0
6766644: Redefinition of compiled method fails with assertion "Can not load classes with the Compiler thread"
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|
1611 JvmtiDeferredEvent::compiled_method_load_event(this)); |
| 0 | 1612 } |
| 1613 } | |
| 1614 | |
|
1616
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parents:
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diff
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|
1615 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
|
1616 if (_jmethod_id == NULL) { |
|
38e8278318ca
6656830: assert((*p)->is_oop(),"expected an oop while scanning weak refs")
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parents:
1602
diff
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|
1617 // 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
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|
1618 // 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
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|
1619 _jmethod_id = method()->jmethod_id(); |
|
38e8278318ca
6656830: assert((*p)->is_oop(),"expected an oop while scanning weak refs")
never
parents:
1602
diff
changeset
|
1620 } |
|
38e8278318ca
6656830: assert((*p)->is_oop(),"expected an oop while scanning weak refs")
never
parents:
1602
diff
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|
1621 return _jmethod_id; |
|
38e8278318ca
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parents:
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diff
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|
1622 } |
|
38e8278318ca
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parents:
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diff
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|
1623 |
| 0 | 1624 void nmethod::post_compiled_method_unload() { |
|
1577
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6956931: assert(SafepointSynchronize::is_at_safepoint()) failed: must be executed at a safepoint
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parents:
1563
diff
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|
1625 if (unload_reported()) { |
|
852d0157c696
6956931: assert(SafepointSynchronize::is_at_safepoint()) failed: must be executed at a safepoint
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parents:
1563
diff
changeset
|
1626 // 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
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|
1627 // 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:
1563
diff
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|
1628 return; |
|
852d0157c696
6956931: assert(SafepointSynchronize::is_at_safepoint()) failed: must be executed at a safepoint
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parents:
1563
diff
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|
1629 } |
|
852d0157c696
6956931: assert(SafepointSynchronize::is_at_safepoint()) failed: must be executed at a safepoint
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parents:
1563
diff
changeset
|
1630 |
| 0 | 1631 assert(_method != NULL && !is_unloaded(), "just checking"); |
| 1632 DTRACE_METHOD_UNLOAD_PROBE(method()); | |
| 1633 | |
| 1634 // If a JVMTI agent has enabled the CompiledMethodUnload event then | |
|
1616
38e8278318ca
6656830: assert((*p)->is_oop(),"expected an oop while scanning weak refs")
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parents:
1602
diff
changeset
|
1635 // post the event. Sometime later this nmethod will be made a zombie |
|
6725
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|
1636 // by the sweeper but the Method* will not be valid at that point. |
|
1616
38e8278318ca
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parents:
1602
diff
changeset
|
1637 // If the _jmethod_id is null then no load event was ever requested |
|
38e8278318ca
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parents:
1602
diff
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|
1638 // so don't bother posting the unload. The main reason for this is |
|
6725
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|
1639 // that the jmethodID is a weak reference to the Method* so if |
|
1616
38e8278318ca
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parents:
1602
diff
changeset
|
1640 // it's being unloaded there's no way to look it up since the weak |
|
38e8278318ca
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parents:
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|
1641 // ref will have been cleared. |
|
38e8278318ca
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parents:
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diff
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|
1642 if (_jmethod_id != NULL && JvmtiExport::should_post_compiled_method_unload()) { |
| 0 | 1643 assert(!unload_reported(), "already unloaded"); |
|
2195
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|
1644 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
|
1645 JvmtiDeferredEvent::compiled_method_unload_event(this, |
|
2195
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|
1646 _jmethod_id, insts_begin()); |
|
bf8517f4e4d0
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|
1647 if (SafepointSynchronize::is_at_safepoint()) { |
|
bf8517f4e4d0
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|
1648 // Don't want to take the queueing lock. Add it as pending and |
|
bf8517f4e4d0
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|
1649 // it will get enqueued later. |
|
bf8517f4e4d0
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|
1650 JvmtiDeferredEventQueue::add_pending_event(event); |
|
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|
1651 } else { |
|
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|
1652 MutexLockerEx ml(Service_lock, Mutex::_no_safepoint_check_flag); |
|
bf8517f4e4d0
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|
1653 JvmtiDeferredEventQueue::enqueue(event); |
|
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|
1654 } |
| 0 | 1655 } |
| 1656 | |
| 1657 // The JVMTI CompiledMethodUnload event can be enabled or disabled at | |
| 1658 // any time. As the nmethod is being unloaded now we mark it has | |
| 1659 // having the unload event reported - this will ensure that we don't | |
| 1660 // attempt to report the event in the unlikely scenario where the | |
| 1661 // event is enabled at the time the nmethod is made a zombie. | |
| 1662 set_unload_reported(); | |
| 1663 } | |
| 1664 | |
| 1665 // This is called at the end of the strong tracing/marking phase of a | |
| 1666 // GC to unload an nmethod if it contains otherwise unreachable | |
| 1667 // oops. | |
| 1668 | |
|
6787
8966c2d65d96
7200470: KeepAliveClosure not needed in CodeCache::do_unloading
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6725
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changeset
|
1669 void nmethod::do_unloading(BoolObjectClosure* is_alive, bool unloading_occurred) { |
| 0 | 1670 // Make sure the oop's ready to receive visitors |
| 1671 assert(!is_zombie() && !is_unloaded(), | |
| 1672 "should not call follow on zombie or unloaded nmethod"); | |
| 1673 | |
| 1674 // If the method is not entrant then a JMP is plastered over the | |
| 1675 // first few bytes. If an oop in the old code was there, that oop | |
| 1676 // should not get GC'd. Skip the first few bytes of oops on | |
| 1677 // not-entrant methods. | |
| 1678 address low_boundary = verified_entry_point(); | |
| 1679 if (is_not_entrant()) { | |
| 1680 low_boundary += NativeJump::instruction_size; | |
| 1681 // %%% Note: On SPARC we patch only a 4-byte trap, not a full NativeJump. | |
| 1682 // (See comment above.) | |
| 1683 } | |
| 1684 | |
| 1685 // The RedefineClasses() API can cause the class unloading invariant | |
| 1686 // to no longer be true. See jvmtiExport.hpp for details. | |
| 1687 // Also, leave a debugging breadcrumb in local flag. | |
| 1688 bool a_class_was_redefined = JvmtiExport::has_redefined_a_class(); | |
| 1689 if (a_class_was_redefined) { | |
| 1690 // This set of the unloading_occurred flag is done before the | |
| 1691 // call to post_compiled_method_unload() so that the unloading | |
| 1692 // of this nmethod is reported. | |
| 1693 unloading_occurred = true; | |
| 1694 } | |
| 1695 | |
| 9707 | 1696 #ifdef GRAAL |
| 1697 // Follow Graal method | |
| 1698 if (_graal_installed_code != NULL) { | |
| 1699 if (HotSpotNmethod::isDefault(_graal_installed_code)) { | |
| 1700 if (!is_alive->do_object_b(_graal_installed_code)) { | |
| 1701 _graal_installed_code = NULL; | |
| 1702 } | |
| 1703 } else { | |
| 1704 if (can_unload(is_alive, (oop*)&_graal_installed_code, unloading_occurred)) { | |
| 1705 return; | |
| 1706 } | |
| 1707 } | |
| 1708 } | |
| 1709 #endif | |
| 1710 | |
| 0 | 1711 // Exception cache |
| 1712 ExceptionCache* ec = exception_cache(); | |
| 1713 while (ec != NULL) { | |
|
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1714 Klass* ex_klass = ec->exception_type(); |
| 0 | 1715 ExceptionCache* next_ec = ec->next(); |
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1716 if (ex_klass != NULL && !ex_klass->is_loader_alive(is_alive)) { |
| 0 | 1717 remove_from_exception_cache(ec); |
| 1718 } | |
| 1719 ec = next_ec; | |
| 1720 } | |
| 1721 | |
| 1722 // If class unloading occurred we first iterate over all inline caches and | |
| 1723 // clear ICs where the cached oop is referring to an unloaded klass or method. | |
| 1724 // The remaining live cached oops will be traversed in the relocInfo::oop_type | |
| 1725 // iteration below. | |
| 1726 if (unloading_occurred) { | |
| 1727 RelocIterator iter(this, low_boundary); | |
| 1728 while(iter.next()) { | |
| 1729 if (iter.type() == relocInfo::virtual_call_type) { | |
| 1730 CompiledIC *ic = CompiledIC_at(iter.reloc()); | |
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1731 if (ic->is_icholder_call()) { |
| 0 | 1732 // The only exception is compiledICHolder oops which may |
| 1733 // yet be marked below. (We check this further below). | |
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1734 CompiledICHolder* cichk_oop = ic->cached_icholder(); |
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1735 if (cichk_oop->holder_method()->method_holder()->is_loader_alive(is_alive) && |
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1736 cichk_oop->holder_klass()->is_loader_alive(is_alive)) { |
| 0 | 1737 continue; |
| 1738 } | |
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1739 } else { |
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1740 Metadata* ic_oop = ic->cached_metadata(); |
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1741 if (ic_oop != NULL) { |
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1742 if (ic_oop->is_klass()) { |
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1743 if (((Klass*)ic_oop)->is_loader_alive(is_alive)) { |
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1744 continue; |
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1745 } |
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1746 } else if (ic_oop->is_method()) { |
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1747 if (((Method*)ic_oop)->method_holder()->is_loader_alive(is_alive)) { |
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1748 continue; |
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1749 } |
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1750 } else { |
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1751 ShouldNotReachHere(); |
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1752 } |
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1753 } |
| 0 | 1754 } |
| 1755 ic->set_to_clean(); | |
| 1756 } | |
| 1757 } | |
| 1758 } | |
| 1759 | |
| 1760 // Compiled code | |
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1761 { |
| 0 | 1762 RelocIterator iter(this, low_boundary); |
| 1763 while (iter.next()) { | |
| 1764 if (iter.type() == relocInfo::oop_type) { | |
| 1765 oop_Relocation* r = iter.oop_reloc(); | |
| 1766 // In this loop, we must only traverse those oops directly embedded in | |
| 1767 // the code. Other oops (oop_index>0) are seen as part of scopes_oops. | |
| 1768 assert(1 == (r->oop_is_immediate()) + | |
| 1769 (r->oop_addr() >= oops_begin() && r->oop_addr() < oops_end()), | |
| 1770 "oop must be found in exactly one place"); | |
| 1771 if (r->oop_is_immediate() && r->oop_value() != NULL) { | |
|
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1772 if (can_unload(is_alive, r->oop_addr(), unloading_occurred)) { |
| 0 | 1773 return; |
| 1774 } | |
| 1775 } | |
| 1776 } | |
| 1777 } | |
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1778 } |
| 0 | 1779 |
| 1780 | |
| 1781 // Scopes | |
| 1782 for (oop* p = oops_begin(); p < oops_end(); p++) { | |
| 1783 if (*p == Universe::non_oop_word()) continue; // skip non-oops | |
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1784 if (can_unload(is_alive, p, unloading_occurred)) { |
| 0 | 1785 return; |
| 1786 } | |
| 1787 } | |
| 1788 | |
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1789 // Ensure that all metadata is still alive |
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1790 verify_metadata_loaders(low_boundary, is_alive); |
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1791 } |
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1792 |
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1793 #ifdef ASSERT |
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1794 |
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1795 class CheckClass : AllStatic { |
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1796 static BoolObjectClosure* _is_alive; |
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1797 |
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1798 // Check class_loader is alive for this bit of metadata. |
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1799 static void check_class(Metadata* md) { |
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1800 Klass* klass = NULL; |
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1801 if (md->is_klass()) { |
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1802 klass = ((Klass*)md); |
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1803 } else if (md->is_method()) { |
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1804 klass = ((Method*)md)->method_holder(); |
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1805 } else if (md->is_methodData()) { |
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1806 klass = ((MethodData*)md)->method()->method_holder(); |
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1807 } else { |
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1808 md->print(); |
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1809 ShouldNotReachHere(); |
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1810 } |
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1811 assert(klass->is_loader_alive(_is_alive), "must be alive"); |
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1812 } |
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1813 public: |
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1814 static void do_check_class(BoolObjectClosure* is_alive, nmethod* nm) { |
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1815 assert(SafepointSynchronize::is_at_safepoint(), "this is only ok at safepoint"); |
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1816 _is_alive = is_alive; |
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1817 nm->metadata_do(check_class); |
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1818 } |
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1819 }; |
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1820 |
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1821 // This is called during a safepoint so can use static data |
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1822 BoolObjectClosure* CheckClass::_is_alive = NULL; |
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1823 #endif // ASSERT |
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1824 |
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1825 |
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1826 // Processing of oop references should have been sufficient to keep |
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1827 // all strong references alive. Any weak references should have been |
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1828 // cleared as well. Visit all the metadata and ensure that it's |
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1829 // really alive. |
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1830 void nmethod::verify_metadata_loaders(address low_boundary, BoolObjectClosure* is_alive) { |
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1831 #ifdef ASSERT |
| 0 | 1832 RelocIterator iter(this, low_boundary); |
| 1833 while (iter.next()) { | |
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1834 // static_stub_Relocations may have dangling references to |
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1835 // Method*s so trim them out here. Otherwise it looks like |
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1836 // compiled code is maintaining a link to dead metadata. |
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1837 address static_call_addr = NULL; |
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1838 if (iter.type() == relocInfo::opt_virtual_call_type) { |
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1839 CompiledIC* cic = CompiledIC_at(iter.reloc()); |
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1840 if (!cic->is_call_to_interpreted()) { |
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1841 static_call_addr = iter.addr(); |
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1842 } |
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1843 } else if (iter.type() == relocInfo::static_call_type) { |
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1844 CompiledStaticCall* csc = compiledStaticCall_at(iter.reloc()); |
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1845 if (!csc->is_call_to_interpreted()) { |
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1846 static_call_addr = iter.addr(); |
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1847 } |
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1848 } |
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1849 if (static_call_addr != NULL) { |
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1850 RelocIterator sciter(this, low_boundary); |
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1851 while (sciter.next()) { |
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1852 if (sciter.type() == relocInfo::static_stub_type && |
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1853 sciter.static_stub_reloc()->static_call() == static_call_addr) { |
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1854 sciter.static_stub_reloc()->clear_inline_cache(); |
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1855 } |
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1856 } |
| 0 | 1857 } |
| 1858 } | |
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1859 // Check that the metadata embedded in the nmethod is alive |
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1860 CheckClass::do_check_class(is_alive, this); |
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1861 #endif |
| 0 | 1862 } |
| 1863 | |
|
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1864 #ifdef GRAAL |
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1865 void nmethod::mark_graal_reference(OopClosure* f) { |
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1866 if (_graal_installed_code != NULL) { |
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1867 f->do_oop((oop*) &_graal_installed_code); |
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1868 } |
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1869 } |
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1870 #endif |
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1871 |
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1872 // Iterate over metadata calling this function. Used by RedefineClasses |
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1873 void nmethod::metadata_do(void f(Metadata*)) { |
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1874 address low_boundary = verified_entry_point(); |
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1875 if (is_not_entrant()) { |
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1876 low_boundary += NativeJump::instruction_size; |
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1877 // %%% Note: On SPARC we patch only a 4-byte trap, not a full NativeJump. |
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1878 // (See comment above.) |
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1879 } |
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1880 { |
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1881 // Visit all immediate references that are embedded in the instruction stream. |
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1882 RelocIterator iter(this, low_boundary); |
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1883 while (iter.next()) { |
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1884 if (iter.type() == relocInfo::metadata_type ) { |
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1885 metadata_Relocation* r = iter.metadata_reloc(); |
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1886 // In this lmetadata, we must only follow those metadatas directly embedded in |
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1887 // the code. Other metadatas (oop_index>0) are seen as part of |
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1888 // the metadata section below. |
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1889 assert(1 == (r->metadata_is_immediate()) + |
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1890 (r->metadata_addr() >= metadata_begin() && r->metadata_addr() < metadata_end()), |
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1891 "metadata must be found in exactly one place"); |
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1892 if (r->metadata_is_immediate() && r->metadata_value() != NULL) { |
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1893 Metadata* md = r->metadata_value(); |
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1894 f(md); |
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1895 } |
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1896 } else if (iter.type() == relocInfo::virtual_call_type) { |
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1897 // Check compiledIC holders associated with this nmethod |
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1898 CompiledIC *ic = CompiledIC_at(iter.reloc()); |
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1899 if (ic->is_icholder_call()) { |
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1900 CompiledICHolder* cichk = ic->cached_icholder(); |
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1901 f(cichk->holder_method()); |
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1902 f(cichk->holder_klass()); |
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1903 } else { |
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1904 Metadata* ic_oop = ic->cached_metadata(); |
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1905 if (ic_oop != NULL) { |
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1906 f(ic_oop); |
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1907 } |
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1908 } |
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1909 } |
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1910 } |
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1911 } |
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1912 |
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1913 // Visit the metadata section |
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1914 for (Metadata** p = metadata_begin(); p < metadata_end(); p++) { |
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1915 if (*p == Universe::non_oop_word() || *p == NULL) continue; // skip non-oops |
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1916 Metadata* md = *p; |
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1917 f(md); |
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1918 } |
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1919 |
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1920 // Call function Method*, not embedded in these other places. |
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1921 if (_method != NULL) f(_method); |
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1922 } |
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1923 |
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1924 |
| 941 | 1925 // This method is called twice during GC -- once while |
| 1926 // tracing the "active" nmethods on thread stacks during | |
| 1927 // the (strong) marking phase, and then again when walking | |
| 1928 // the code cache contents during the weak roots processing | |
| 1929 // phase. The two uses are distinguished by means of the | |
|
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1930 // 'do_strong_roots_only' flag, which is true in the first |
| 941 | 1931 // case. We want to walk the weak roots in the nmethod |
| 1932 // only in the second case. The weak roots in the nmethod | |
| 1933 // are the oops in the ExceptionCache and the InlineCache | |
| 1934 // oops. | |
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1935 void nmethod::oops_do(OopClosure* f, bool do_strong_roots_only) { |
| 0 | 1936 // make sure the oops ready to receive visitors |
| 1937 assert(!is_zombie() && !is_unloaded(), | |
| 1938 "should not call follow on zombie or unloaded nmethod"); | |
| 1939 | |
| 1940 // If the method is not entrant or zombie then a JMP is plastered over the | |
| 1941 // first few bytes. If an oop in the old code was there, that oop | |
| 1942 // should not get GC'd. Skip the first few bytes of oops on | |
| 1943 // not-entrant methods. | |
| 1944 address low_boundary = verified_entry_point(); | |
| 1945 if (is_not_entrant()) { | |
| 1946 low_boundary += NativeJump::instruction_size; | |
| 1947 // %%% Note: On SPARC we patch only a 4-byte trap, not a full NativeJump. | |
| 1948 // (See comment above.) | |
| 1949 } | |
| 1950 | |
| 9707 | 1951 #ifdef GRAAL |
| 1952 if (_graal_installed_code != NULL) { | |
| 1953 f->do_oop((oop*) &_graal_installed_code); | |
| 1954 } | |
| 1955 if (_triggered_deoptimizations != NULL) { | |
| 1956 f->do_oop((oop*) &_triggered_deoptimizations); | |
| 1957 } | |
| 1958 #endif | |
| 1959 | |
| 0 | 1960 RelocIterator iter(this, low_boundary); |
| 941 | 1961 |
| 0 | 1962 while (iter.next()) { |
| 1963 if (iter.type() == relocInfo::oop_type ) { | |
| 1964 oop_Relocation* r = iter.oop_reloc(); | |
| 1965 // In this loop, we must only follow those oops directly embedded in | |
| 1966 // the code. Other oops (oop_index>0) are seen as part of scopes_oops. | |
| 941 | 1967 assert(1 == (r->oop_is_immediate()) + |
| 1968 (r->oop_addr() >= oops_begin() && r->oop_addr() < oops_end()), | |
| 1969 "oop must be found in exactly one place"); | |
| 0 | 1970 if (r->oop_is_immediate() && r->oop_value() != NULL) { |
| 1971 f->do_oop(r->oop_addr()); | |
| 1972 } | |
| 1973 } | |
| 1974 } | |
| 1975 | |
| 1976 // Scopes | |
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1977 // This includes oop constants not inlined in the code stream. |
| 0 | 1978 for (oop* p = oops_begin(); p < oops_end(); p++) { |
| 1979 if (*p == Universe::non_oop_word()) continue; // skip non-oops | |
| 1980 f->do_oop(p); | |
| 1981 } | |
| 1982 } | |
| 1983 | |
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1984 #define NMETHOD_SENTINEL ((nmethod*)badAddress) |
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1985 |
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1986 nmethod* volatile nmethod::_oops_do_mark_nmethods; |
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1987 |
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1988 // An nmethod is "marked" if its _mark_link is set non-null. |
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1989 // Even if it is the end of the linked list, it will have a non-null link value, |
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1990 // as long as it is on the list. |
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1991 // This code must be MP safe, because it is used from parallel GC passes. |
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1992 bool nmethod::test_set_oops_do_mark() { |
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1993 assert(nmethod::oops_do_marking_is_active(), "oops_do_marking_prologue must be called"); |
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1994 nmethod* observed_mark_link = _oops_do_mark_link; |
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1995 if (observed_mark_link == NULL) { |
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1996 // Claim this nmethod for this thread to mark. |
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1997 observed_mark_link = (nmethod*) |
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1998 Atomic::cmpxchg_ptr(NMETHOD_SENTINEL, &_oops_do_mark_link, NULL); |
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1999 if (observed_mark_link == NULL) { |
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2000 |
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2001 // Atomically append this nmethod (now claimed) to the head of the list: |
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2002 nmethod* observed_mark_nmethods = _oops_do_mark_nmethods; |
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2003 for (;;) { |
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2004 nmethod* required_mark_nmethods = observed_mark_nmethods; |
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2005 _oops_do_mark_link = required_mark_nmethods; |
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2006 observed_mark_nmethods = (nmethod*) |
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2007 Atomic::cmpxchg_ptr(this, &_oops_do_mark_nmethods, required_mark_nmethods); |
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2008 if (observed_mark_nmethods == required_mark_nmethods) |
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2009 break; |
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2010 } |
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2011 // Mark was clear when we first saw this guy. |
|
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2012 NOT_PRODUCT(if (TraceScavenge) print_on(tty, "oops_do, mark")); |
|
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2013 return false; |
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2014 } |
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2015 } |
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2016 // On fall through, another racing thread marked this nmethod before we did. |
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2017 return true; |
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2018 } |
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2019 |
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2020 void nmethod::oops_do_marking_prologue() { |
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2021 NOT_PRODUCT(if (TraceScavenge) tty->print_cr("[oops_do_marking_prologue")); |
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2022 assert(_oops_do_mark_nmethods == NULL, "must not call oops_do_marking_prologue twice in a row"); |
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2023 // We use cmpxchg_ptr instead of regular assignment here because the user |
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2024 // may fork a bunch of threads, and we need them all to see the same state. |
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2025 void* observed = Atomic::cmpxchg_ptr(NMETHOD_SENTINEL, &_oops_do_mark_nmethods, NULL); |
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2026 guarantee(observed == NULL, "no races in this sequential code"); |
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2027 } |
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2028 |
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2029 void nmethod::oops_do_marking_epilogue() { |
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2030 assert(_oops_do_mark_nmethods != NULL, "must not call oops_do_marking_epilogue twice in a row"); |
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2031 nmethod* cur = _oops_do_mark_nmethods; |
|
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2032 while (cur != NMETHOD_SENTINEL) { |
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2033 assert(cur != NULL, "not NULL-terminated"); |
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2034 nmethod* next = cur->_oops_do_mark_link; |
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2035 cur->_oops_do_mark_link = NULL; |
|
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2036 cur->fix_oop_relocations(); |
|
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2037 NOT_PRODUCT(if (TraceScavenge) cur->print_on(tty, "oops_do, unmark")); |
|
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2038 cur = next; |
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2039 } |
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2040 void* required = _oops_do_mark_nmethods; |
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2041 void* observed = Atomic::cmpxchg_ptr(NULL, &_oops_do_mark_nmethods, required); |
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2042 guarantee(observed == required, "no races in this sequential code"); |
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2043 NOT_PRODUCT(if (TraceScavenge) tty->print_cr("oops_do_marking_epilogue]")); |
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2044 } |
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2045 |
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2046 class DetectScavengeRoot: public OopClosure { |
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2047 bool _detected_scavenge_root; |
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2048 public: |
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2049 DetectScavengeRoot() : _detected_scavenge_root(false) |
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2050 { NOT_PRODUCT(_print_nm = NULL); } |
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2051 bool detected_scavenge_root() { return _detected_scavenge_root; } |
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2052 virtual void do_oop(oop* p) { |
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2053 if ((*p) != NULL && (*p)->is_scavengable()) { |
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2054 NOT_PRODUCT(maybe_print(p)); |
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2055 _detected_scavenge_root = true; |
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2056 } |
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2057 } |
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2058 virtual void do_oop(narrowOop* p) { ShouldNotReachHere(); } |
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2059 |
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2060 #ifndef PRODUCT |
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2061 nmethod* _print_nm; |
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2062 void maybe_print(oop* p) { |
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2063 if (_print_nm == NULL) return; |
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2064 if (!_detected_scavenge_root) _print_nm->print_on(tty, "new scavenge root"); |
|
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2065 tty->print_cr(""PTR_FORMAT"[offset=%d] detected scavengable oop "PTR_FORMAT" (found at "PTR_FORMAT")", |
|
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2066 _print_nm, (int)((intptr_t)p - (intptr_t)_print_nm), |
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2067 (intptr_t)(*p), (intptr_t)p); |
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2068 (*p)->print(); |
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2069 } |
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2070 #endif //PRODUCT |
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2071 }; |
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2072 |
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2073 bool nmethod::detect_scavenge_root_oops() { |
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2074 DetectScavengeRoot detect_scavenge_root; |
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2075 NOT_PRODUCT(if (TraceScavenge) detect_scavenge_root._print_nm = this); |
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2076 oops_do(&detect_scavenge_root); |
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2077 return detect_scavenge_root.detected_scavenge_root(); |
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2078 } |
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2079 |
| 0 | 2080 // Method that knows how to preserve outgoing arguments at call. This method must be |
| 2081 // called with a frame corresponding to a Java invoke | |
| 2082 void nmethod::preserve_callee_argument_oops(frame fr, const RegisterMap *reg_map, OopClosure* f) { | |
| 1692 | 2083 #ifndef SHARK |
| 0 | 2084 if (!method()->is_native()) { |
| 2085 SimpleScopeDesc ssd(this, fr.pc()); | |
| 2142 | 2086 Bytecode_invoke call(ssd.method(), ssd.bci()); |
| 10390 | 2087 bool has_receiver = call.has_receiver(); |
| 2088 bool has_appendix = call.has_appendix(); | |
|
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2089 Symbol* signature = call.signature(); |
| 10390 | 2090 fr.oops_compiled_arguments_do(signature, has_receiver, has_appendix, reg_map, f); |
| 0 | 2091 } |
| 1692 | 2092 #endif // !SHARK |
| 0 | 2093 } |
| 2094 | |
| 2095 | |
| 2096 oop nmethod::embeddedOop_at(u_char* p) { | |
|
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2097 RelocIterator iter(this, p, p + 1); |
| 0 | 2098 while (iter.next()) |
| 2099 if (iter.type() == relocInfo::oop_type) { | |
| 2100 return iter.oop_reloc()->oop_value(); | |
| 2101 } | |
| 2102 return NULL; | |
| 2103 } | |
| 2104 | |
| 2105 | |
| 2106 inline bool includes(void* p, void* from, void* to) { | |
| 2107 return from <= p && p < to; | |
| 2108 } | |
| 2109 | |
| 2110 | |
| 2111 void nmethod::copy_scopes_pcs(PcDesc* pcs, int count) { | |
| 2112 assert(count >= 2, "must be sentinel values, at least"); | |
| 2113 | |
| 2114 #ifdef ASSERT | |
| 2115 // must be sorted and unique; we do a binary search in find_pc_desc() | |
| 2116 int prev_offset = pcs[0].pc_offset(); | |
| 2117 assert(prev_offset == PcDesc::lower_offset_limit, | |
| 2118 "must start with a sentinel"); | |
| 2119 for (int i = 1; i < count; i++) { | |
| 2120 int this_offset = pcs[i].pc_offset(); | |
| 2121 assert(this_offset > prev_offset, "offsets must be sorted"); | |
| 2122 prev_offset = this_offset; | |
| 2123 } | |
| 2124 assert(prev_offset == PcDesc::upper_offset_limit, | |
| 2125 "must end with a sentinel"); | |
| 2126 #endif //ASSERT | |
| 2127 | |
|
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2128 // Search for MethodHandle invokes and tag the nmethod. |
|
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2129 for (int i = 0; i < count; i++) { |
|
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2130 if (pcs[i].is_method_handle_invoke()) { |
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2131 set_has_method_handle_invokes(true); |
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2132 break; |
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2133 } |
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2134 } |
|
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2135 assert(has_method_handle_invokes() == (_deoptimize_mh_offset != -1), "must have deopt mh handler"); |
|
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2136 |
| 0 | 2137 int size = count * sizeof(PcDesc); |
| 2138 assert(scopes_pcs_size() >= size, "oob"); | |
| 2139 memcpy(scopes_pcs_begin(), pcs, size); | |
| 2140 | |
| 2141 // Adjust the final sentinel downward. | |
| 2142 PcDesc* last_pc = &scopes_pcs_begin()[count-1]; | |
| 2143 assert(last_pc->pc_offset() == PcDesc::upper_offset_limit, "sanity"); | |
| 1748 | 2144 last_pc->set_pc_offset(content_size() + 1); |
| 0 | 2145 for (; last_pc + 1 < scopes_pcs_end(); last_pc += 1) { |
| 2146 // Fill any rounding gaps with copies of the last record. | |
| 2147 last_pc[1] = last_pc[0]; | |
| 2148 } | |
| 2149 // The following assert could fail if sizeof(PcDesc) is not | |
| 2150 // an integral multiple of oopSize (the rounding term). | |
| 2151 // If it fails, change the logic to always allocate a multiple | |
| 2152 // of sizeof(PcDesc), and fill unused words with copies of *last_pc. | |
| 2153 assert(last_pc + 1 == scopes_pcs_end(), "must match exactly"); | |
| 2154 } | |
| 2155 | |
| 2156 void nmethod::copy_scopes_data(u_char* buffer, int size) { | |
| 2157 assert(scopes_data_size() >= size, "oob"); | |
| 2158 memcpy(scopes_data_begin(), buffer, size); | |
| 2159 } | |
| 2160 | |
| 2161 | |
| 2162 #ifdef ASSERT | |
| 2163 static PcDesc* linear_search(nmethod* nm, int pc_offset, bool approximate) { | |
| 2164 PcDesc* lower = nm->scopes_pcs_begin(); | |
| 2165 PcDesc* upper = nm->scopes_pcs_end(); | |
| 2166 lower += 1; // exclude initial sentinel | |
| 2167 PcDesc* res = NULL; | |
| 2168 for (PcDesc* p = lower; p < upper; p++) { | |
| 2169 NOT_PRODUCT(--nmethod_stats.pc_desc_tests); // don't count this call to match_desc | |
| 2170 if (match_desc(p, pc_offset, approximate)) { | |
| 2171 if (res == NULL) | |
| 2172 res = p; | |
| 2173 else | |
| 2174 res = (PcDesc*) badAddress; | |
| 2175 } | |
| 2176 } | |
| 2177 return res; | |
| 2178 } | |
| 2179 #endif | |
| 2180 | |
| 2181 | |
| 2182 // Finds a PcDesc with real-pc equal to "pc" | |
| 2183 PcDesc* nmethod::find_pc_desc_internal(address pc, bool approximate) { | |
| 1748 | 2184 address base_address = code_begin(); |
| 0 | 2185 if ((pc < base_address) || |
| 2186 (pc - base_address) >= (ptrdiff_t) PcDesc::upper_offset_limit) { | |
| 2187 return NULL; // PC is wildly out of range | |
| 2188 } | |
| 2189 int pc_offset = (int) (pc - base_address); | |
| 2190 | |
| 2191 // Check the PcDesc cache if it contains the desired PcDesc | |
| 2192 // (This as an almost 100% hit rate.) | |
| 2193 PcDesc* res = _pc_desc_cache.find_pc_desc(pc_offset, approximate); | |
| 2194 if (res != NULL) { | |
| 2195 assert(res == linear_search(this, pc_offset, approximate), "cache ok"); | |
| 2196 return res; | |
| 2197 } | |
| 2198 | |
| 2199 // Fallback algorithm: quasi-linear search for the PcDesc | |
| 2200 // Find the last pc_offset less than the given offset. | |
| 2201 // The successor must be the required match, if there is a match at all. | |
| 2202 // (Use a fixed radix to avoid expensive affine pointer arithmetic.) | |
| 2203 PcDesc* lower = scopes_pcs_begin(); | |
| 2204 PcDesc* upper = scopes_pcs_end(); | |
| 2205 upper -= 1; // exclude final sentinel | |
| 2206 if (lower >= upper) return NULL; // native method; no PcDescs at all | |
| 2207 | |
| 2208 #define assert_LU_OK \ | |
| 2209 /* invariant on lower..upper during the following search: */ \ | |
| 2210 assert(lower->pc_offset() < pc_offset, "sanity"); \ | |
| 2211 assert(upper->pc_offset() >= pc_offset, "sanity") | |
| 2212 assert_LU_OK; | |
| 2213 | |
| 2214 // Use the last successful return as a split point. | |
| 2215 PcDesc* mid = _pc_desc_cache.last_pc_desc(); | |
| 2216 NOT_PRODUCT(++nmethod_stats.pc_desc_searches); | |
| 2217 if (mid->pc_offset() < pc_offset) { | |
| 2218 lower = mid; | |
| 2219 } else { | |
| 2220 upper = mid; | |
| 2221 } | |
| 2222 | |
| 2223 // Take giant steps at first (4096, then 256, then 16, then 1) | |
| 2224 const int LOG2_RADIX = 4 /*smaller steps in debug mode:*/ debug_only(-1); | |
| 2225 const int RADIX = (1 << LOG2_RADIX); | |
| 2226 for (int step = (1 << (LOG2_RADIX*3)); step > 1; step >>= LOG2_RADIX) { | |
| 2227 while ((mid = lower + step) < upper) { | |
| 2228 assert_LU_OK; | |
| 2229 NOT_PRODUCT(++nmethod_stats.pc_desc_searches); | |
| 2230 if (mid->pc_offset() < pc_offset) { | |
| 2231 lower = mid; | |
| 2232 } else { | |
| 2233 upper = mid; | |
| 2234 break; | |
| 2235 } | |
| 2236 } | |
| 2237 assert_LU_OK; | |
| 2238 } | |
| 2239 | |
| 2240 // Sneak up on the value with a linear search of length ~16. | |
| 2241 while (true) { | |
| 2242 assert_LU_OK; | |
| 2243 mid = lower + 1; | |
| 2244 NOT_PRODUCT(++nmethod_stats.pc_desc_searches); | |
| 2245 if (mid->pc_offset() < pc_offset) { | |
| 2246 lower = mid; | |
| 2247 } else { | |
| 2248 upper = mid; | |
| 2249 break; | |
| 2250 } | |
| 2251 } | |
| 2252 #undef assert_LU_OK | |
| 2253 | |
| 2254 if (match_desc(upper, pc_offset, approximate)) { | |
| 2255 assert(upper == linear_search(this, pc_offset, approximate), "search ok"); | |
| 2256 _pc_desc_cache.add_pc_desc(upper); | |
| 2257 return upper; | |
| 2258 } else { | |
| 2259 assert(NULL == linear_search(this, pc_offset, approximate), "search ok"); | |
| 2260 return NULL; | |
| 2261 } | |
| 2262 } | |
| 2263 | |
| 2264 | |
| 2265 bool nmethod::check_all_dependencies() { | |
| 2266 bool found_check = false; | |
| 2267 // wholesale check of all dependencies | |
| 2268 for (Dependencies::DepStream deps(this); deps.next(); ) { | |
| 2269 if (deps.check_dependency() != NULL) { | |
| 2270 found_check = true; | |
| 2271 NOT_DEBUG(break); | |
| 2272 } | |
| 2273 } | |
| 2274 return found_check; // tell caller if we found anything | |
| 2275 } | |
| 2276 | |
| 2277 bool nmethod::check_dependency_on(DepChange& changes) { | |
| 2278 // What has happened: | |
| 2279 // 1) a new class dependee has been added | |
| 2280 // 2) dependee and all its super classes have been marked | |
| 2281 bool found_check = false; // set true if we are upset | |
| 2282 for (Dependencies::DepStream deps(this); deps.next(); ) { | |
| 2283 // Evaluate only relevant dependencies. | |
| 2284 if (deps.spot_check_dependency_at(changes) != NULL) { | |
| 2285 found_check = true; | |
| 2286 NOT_DEBUG(break); | |
| 2287 } | |
| 2288 } | |
| 2289 return found_check; | |
| 2290 } | |
| 2291 | |
|
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2292 bool nmethod::is_evol_dependent_on(Klass* dependee) { |
|
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2293 InstanceKlass *dependee_ik = InstanceKlass::cast(dependee); |
|
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2294 Array<Method*>* dependee_methods = dependee_ik->methods(); |
| 0 | 2295 for (Dependencies::DepStream deps(this); deps.next(); ) { |
| 2296 if (deps.type() == Dependencies::evol_method) { | |
|
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2297 Method* method = deps.method_argument(0); |
| 0 | 2298 for (int j = 0; j < dependee_methods->length(); j++) { |
|
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2299 if (dependee_methods->at(j) == method) { |
| 0 | 2300 // RC_TRACE macro has an embedded ResourceMark |
| 2301 RC_TRACE(0x01000000, | |
| 2302 ("Found evol dependency of nmethod %s.%s(%s) compile_id=%d on method %s.%s(%s)", | |
|
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2303 _method->method_holder()->external_name(), |
| 0 | 2304 _method->name()->as_C_string(), |
| 2305 _method->signature()->as_C_string(), compile_id(), | |
|
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2306 method->method_holder()->external_name(), |
| 0 | 2307 method->name()->as_C_string(), |
| 2308 method->signature()->as_C_string())); | |
| 2309 if (TraceDependencies || LogCompilation) | |
| 2310 deps.log_dependency(dependee); | |
| 2311 return true; | |
| 2312 } | |
| 2313 } | |
| 2314 } | |
| 2315 } | |
| 2316 return false; | |
| 2317 } | |
| 2318 | |
| 2319 // Called from mark_for_deoptimization, when dependee is invalidated. | |
|
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2320 bool nmethod::is_dependent_on_method(Method* dependee) { |
| 0 | 2321 for (Dependencies::DepStream deps(this); deps.next(); ) { |
| 2322 if (deps.type() != Dependencies::evol_method) | |
| 2323 continue; | |
|
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2324 Method* method = deps.method_argument(0); |
| 0 | 2325 if (method == dependee) return true; |
| 2326 } | |
| 2327 return false; | |
| 2328 } | |
| 2329 | |
| 2330 | |
| 2331 bool nmethod::is_patchable_at(address instr_addr) { | |
| 1748 | 2332 assert(insts_contains(instr_addr), "wrong nmethod used"); |
| 0 | 2333 if (is_zombie()) { |
| 2334 // a zombie may never be patched | |
| 2335 return false; | |
| 2336 } | |
| 2337 return true; | |
| 2338 } | |
| 2339 | |
| 2340 | |
| 2341 address nmethod::continuation_for_implicit_exception(address pc) { | |
| 2342 // Exception happened outside inline-cache check code => we are inside | |
| 2343 // an active nmethod => use cpc to determine a return address | |
| 1748 | 2344 int exception_offset = pc - code_begin(); |
| 0 | 2345 int cont_offset = ImplicitExceptionTable(this).at( exception_offset ); |
| 2346 #ifdef ASSERT | |
| 2347 if (cont_offset == 0) { | |
| 2348 Thread* thread = ThreadLocalStorage::get_thread_slow(); | |
| 2349 ResetNoHandleMark rnm; // Might be called from LEAF/QUICK ENTRY | |
| 2350 HandleMark hm(thread); | |
| 2351 ResourceMark rm(thread); | |
| 2352 CodeBlob* cb = CodeCache::find_blob(pc); | |
| 2353 assert(cb != NULL && cb == this, ""); | |
| 2354 tty->print_cr("implicit exception happened at " INTPTR_FORMAT, pc); | |
| 2355 print(); | |
| 2356 method()->print_codes(); | |
| 2357 print_code(); | |
| 2358 print_pcs(); | |
| 2359 } | |
| 2360 #endif | |
| 1250 | 2361 if (cont_offset == 0) { |
| 2362 // Let the normal error handling report the exception | |
| 2363 return NULL; | |
| 2364 } | |
| 1748 | 2365 return code_begin() + cont_offset; |
| 0 | 2366 } |
| 2367 | |
| 2368 | |
| 2369 | |
| 2370 void nmethod_init() { | |
| 2371 // make sure you didn't forget to adjust the filler fields | |
| 2372 assert(sizeof(nmethod) % oopSize == 0, "nmethod size must be multiple of a word"); | |
| 2373 } | |
| 2374 | |
| 2375 | |
| 2376 //------------------------------------------------------------------------------------------- | |
| 2377 | |
| 2378 | |
| 2379 // QQQ might we make this work from a frame?? | |
| 2380 nmethodLocker::nmethodLocker(address pc) { | |
| 2381 CodeBlob* cb = CodeCache::find_blob(pc); | |
| 2382 guarantee(cb != NULL && cb->is_nmethod(), "bad pc for a nmethod found"); | |
| 2383 _nm = (nmethod*)cb; | |
| 2384 lock_nmethod(_nm); | |
| 2385 } | |
| 2386 | |
|
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2387 // Only JvmtiDeferredEvent::compiled_method_unload_event() |
|
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|
2388 // should pass zombie_ok == true. |
|
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|
2389 void nmethodLocker::lock_nmethod(nmethod* nm, bool zombie_ok) { |
| 0 | 2390 if (nm == NULL) return; |
| 2391 Atomic::inc(&nm->_lock_count); | |
|
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|
2392 guarantee(zombie_ok || !nm->is_zombie(), "cannot lock a zombie method"); |
| 0 | 2393 } |
| 2394 | |
| 2395 void nmethodLocker::unlock_nmethod(nmethod* nm) { | |
| 2396 if (nm == NULL) return; | |
| 2397 Atomic::dec(&nm->_lock_count); | |
| 2398 guarantee(nm->_lock_count >= 0, "unmatched nmethod lock/unlock"); | |
| 2399 } | |
| 2400 | |
| 1204 | 2401 |
| 2402 // ----------------------------------------------------------------------------- | |
| 2403 // nmethod::get_deopt_original_pc | |
| 2404 // | |
| 2405 // Return the original PC for the given PC if: | |
| 2406 // (a) the given PC belongs to a nmethod and | |
| 2407 // (b) it is a deopt PC | |
| 2408 address nmethod::get_deopt_original_pc(const frame* fr) { | |
| 2409 if (fr->cb() == NULL) return NULL; | |
| 2410 | |
| 2411 nmethod* nm = fr->cb()->as_nmethod_or_null(); | |
| 2412 if (nm != NULL && nm->is_deopt_pc(fr->pc())) | |
| 2413 return nm->get_original_pc(fr); | |
| 2414 | |
| 2415 return NULL; | |
| 0 | 2416 } |
| 2417 | |
| 2418 | |
| 2419 // ----------------------------------------------------------------------------- | |
|
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2420 // MethodHandle |
|
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2421 |
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2422 bool nmethod::is_method_handle_return(address return_pc) { |
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2423 if (!has_method_handle_invokes()) return false; |
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2424 PcDesc* pd = pc_desc_at(return_pc); |
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2425 if (pd == NULL) |
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2426 return false; |
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|
2427 return pd->is_method_handle_invoke(); |
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|
2428 } |
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|
2429 |
|
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|
2430 |
|
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|
2431 // ----------------------------------------------------------------------------- |
| 0 | 2432 // Verification |
| 2433 | |
|
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2434 class VerifyOopsClosure: public OopClosure { |
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|
2435 nmethod* _nm; |
|
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|
2436 bool _ok; |
|
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|
2437 public: |
|
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|
2438 VerifyOopsClosure(nmethod* nm) : _nm(nm), _ok(true) { } |
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|
2439 bool ok() { return _ok; } |
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|
2440 virtual void do_oop(oop* p) { |
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|
2441 if ((*p) == NULL || (*p)->is_oop()) return; |
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|
2442 if (_ok) { |
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|
2443 _nm->print_nmethod(true); |
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|
2444 _ok = false; |
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|
2445 } |
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|
2446 tty->print_cr("*** non-oop "PTR_FORMAT" found at "PTR_FORMAT" (offset %d)", |
|
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|
2447 (intptr_t)(*p), (intptr_t)p, (int)((intptr_t)p - (intptr_t)_nm)); |
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|
2448 } |
|
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|
2449 virtual void do_oop(narrowOop* p) { ShouldNotReachHere(); } |
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|
2450 }; |
|
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|
2451 |
| 0 | 2452 void nmethod::verify() { |
| 2453 | |
| 2454 // Hmm. OSR methods can be deopted but not marked as zombie or not_entrant | |
| 2455 // seems odd. | |
| 2456 | |
| 2457 if( is_zombie() || is_not_entrant() ) | |
| 2458 return; | |
| 2459 | |
| 2460 // Make sure all the entry points are correctly aligned for patching. | |
| 2461 NativeJump::check_verified_entry_alignment(entry_point(), verified_entry_point()); | |
| 2462 | |
|
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2463 // assert(method()->is_oop(), "must be valid"); |
| 0 | 2464 |
| 2465 ResourceMark rm; | |
| 2466 | |
| 2467 if (!CodeCache::contains(this)) { | |
|
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|
2468 fatal(err_msg("nmethod at " INTPTR_FORMAT " not in zone", this)); |
| 0 | 2469 } |
| 2470 | |
| 2471 if(is_native_method() ) | |
| 2472 return; | |
| 2473 | |
| 2474 nmethod* nm = CodeCache::find_nmethod(verified_entry_point()); | |
| 2475 if (nm != this) { | |
|
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|
2476 fatal(err_msg("findNMethod did not find this nmethod (" INTPTR_FORMAT ")", |
|
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|
2477 this)); |
| 0 | 2478 } |
| 2479 | |
| 2480 for (PcDesc* p = scopes_pcs_begin(); p < scopes_pcs_end(); p++) { | |
| 2481 if (! p->verify(this)) { | |
| 2482 tty->print_cr("\t\tin nmethod at " INTPTR_FORMAT " (pcs)", this); | |
| 2483 } | |
| 2484 } | |
| 2485 | |
|
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|
2486 VerifyOopsClosure voc(this); |
|
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|
2487 oops_do(&voc); |
|
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|
2488 assert(voc.ok(), "embedded oops must be OK"); |
|
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|
2489 verify_scavenge_root_oops(); |
|
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|
2490 |
| 0 | 2491 verify_scopes(); |
| 2492 } | |
| 2493 | |
| 2494 | |
| 2495 void nmethod::verify_interrupt_point(address call_site) { | |
| 2496 // This code does not work in release mode since | |
| 2497 // owns_lock only is available in debug mode. | |
| 2498 CompiledIC* ic = NULL; | |
| 2499 Thread *cur = Thread::current(); | |
| 2500 if (CompiledIC_lock->owner() == cur || | |
| 2501 ((cur->is_VM_thread() || cur->is_ConcurrentGC_thread()) && | |
| 2502 SafepointSynchronize::is_at_safepoint())) { | |
|
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|
2503 ic = CompiledIC_at(this, call_site); |
| 0 | 2504 CHECK_UNHANDLED_OOPS_ONLY(Thread::current()->clear_unhandled_oops()); |
| 2505 } else { | |
| 2506 MutexLocker ml_verify (CompiledIC_lock); | |
|
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|
2507 ic = CompiledIC_at(this, call_site); |
| 0 | 2508 } |
| 9707 | 2509 |
| 0 | 2510 PcDesc* pd = pc_desc_at(ic->end_of_call()); |
| 2511 assert(pd != NULL, "PcDesc must exist"); | |
| 2512 for (ScopeDesc* sd = new ScopeDesc(this, pd->scope_decode_offset(), | |
| 9707 | 2513 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")
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diff
changeset
|
2514 pd->return_oop()); |
| 0 | 2515 !sd->is_top(); sd = sd->sender()) { |
| 2516 sd->verify(); | |
| 2517 } | |
| 2518 } | |
| 2519 | |
| 2520 void nmethod::verify_scopes() { | |
| 2521 if( !method() ) return; // Runtime stubs have no scope | |
| 2522 if (method()->is_native()) return; // Ignore stub methods. | |
| 2523 // iterate through all interrupt point | |
| 2524 // and verify the debug information is valid. | |
| 2525 RelocIterator iter((nmethod*)this); | |
| 2526 while (iter.next()) { | |
| 2527 address stub = NULL; | |
| 2528 switch (iter.type()) { | |
| 2529 case relocInfo::virtual_call_type: | |
| 2530 verify_interrupt_point(iter.addr()); | |
| 2531 break; | |
| 2532 case relocInfo::opt_virtual_call_type: | |
| 2533 stub = iter.opt_virtual_call_reloc()->static_stub(); | |
| 2534 verify_interrupt_point(iter.addr()); | |
| 2535 break; | |
| 2536 case relocInfo::static_call_type: | |
| 2537 stub = iter.static_call_reloc()->static_stub(); | |
| 2538 //verify_interrupt_point(iter.addr()); | |
| 2539 break; | |
| 2540 case relocInfo::runtime_call_type: | |
| 2541 address destination = iter.reloc()->value(); | |
| 2542 // Right now there is no way to find out which entries support | |
| 2543 // an interrupt point. It would be nice if we had this | |
| 2544 // information in a table. | |
| 2545 break; | |
| 2546 } | |
| 2547 assert(stub == NULL || stub_contains(stub), "static call stub outside stub section"); | |
| 2548 } | |
| 2549 } | |
| 2550 | |
| 2551 | |
| 2552 // ----------------------------------------------------------------------------- | |
| 2553 // Non-product code | |
| 2554 #ifndef PRODUCT | |
| 2555 | |
|
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|
2556 class DebugScavengeRoot: public OopClosure { |
|
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|
2557 nmethod* _nm; |
|
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|
2558 bool _ok; |
|
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|
2559 public: |
|
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|
2560 DebugScavengeRoot(nmethod* nm) : _nm(nm), _ok(true) { } |
|
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|
2561 bool ok() { return _ok; } |
|
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|
2562 virtual void do_oop(oop* p) { |
|
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|
2563 if ((*p) == NULL || !(*p)->is_scavengable()) return; |
|
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|
2564 if (_ok) { |
|
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|
2565 _nm->print_nmethod(true); |
|
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|
2566 _ok = false; |
|
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|
2567 } |
|
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|
2568 tty->print_cr("*** scavengable oop "PTR_FORMAT" found at "PTR_FORMAT" (offset %d)", |
|
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|
2569 (intptr_t)(*p), (intptr_t)p, (int)((intptr_t)p - (intptr_t)_nm)); |
|
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|
2570 (*p)->print(); |
|
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|
2571 } |
|
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|
2572 virtual void do_oop(narrowOop* p) { ShouldNotReachHere(); } |
|
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|
2573 }; |
| 0 | 2574 |
|
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|
2575 void nmethod::verify_scavenge_root_oops() { |
|
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|
2576 if (!on_scavenge_root_list()) { |
|
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|
2577 // Actually look inside, to verify the claim that it's clean. |
|
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|
2578 DebugScavengeRoot debug_scavenge_root(this); |
|
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|
2579 oops_do(&debug_scavenge_root); |
|
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diff
changeset
|
2580 if (!debug_scavenge_root.ok()) |
|
3377
2aa9ddbb9e60
7041789: 30% perf regression with c2/arm following 7017732
jmasa
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2405
diff
changeset
|
2581 fatal("found an unadvertised bad scavengable oop in the code cache"); |
| 0 | 2582 } |
|
989
148e5441d916
6863023: need non-perm oops in code cache for JSR 292
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diff
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|
2583 assert(scavenge_root_not_marked(), ""); |
| 0 | 2584 } |
| 2585 | |
|
100
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|
2586 #endif // PRODUCT |
| 0 | 2587 |
| 2588 // Printing operations | |
| 2589 | |
| 2590 void nmethod::print() const { | |
| 2591 ResourceMark rm; | |
| 2592 ttyLocker ttyl; // keep the following output all in one block | |
| 2593 | |
|
2405
3d58a4983660
7022998: JSR 292 recursive method handle calls inline themselves infinitely
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changeset
|
2594 tty->print("Compiled method "); |
| 0 | 2595 |
| 2596 if (is_compiled_by_c1()) { | |
| 2597 tty->print("(c1) "); | |
| 2598 } else if (is_compiled_by_c2()) { | |
| 2599 tty->print("(c2) "); | |
| 1692 | 2600 } else if (is_compiled_by_shark()) { |
| 2601 tty->print("(shark) "); | |
| 9707 | 2602 } else if (is_compiled_by_graal()) { |
| 2603 tty->print("(Graal) "); | |
| 0 | 2604 } else { |
| 2605 tty->print("(nm) "); | |
| 2606 } | |
| 2607 | |
|
2405
3d58a4983660
7022998: JSR 292 recursive method handle calls inline themselves infinitely
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diff
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|
2608 print_on(tty, NULL); |
|
3d58a4983660
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2376
diff
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|
2609 |
| 0 | 2610 if (WizardMode) { |
| 2611 tty->print("((nmethod*) "INTPTR_FORMAT ") ", this); | |
| 2612 tty->print(" for method " INTPTR_FORMAT , (address)method()); | |
| 2613 tty->print(" { "); | |
| 2614 if (is_in_use()) tty->print("in_use "); | |
| 2615 if (is_not_entrant()) tty->print("not_entrant "); | |
| 2616 if (is_zombie()) tty->print("zombie "); | |
| 2617 if (is_unloaded()) tty->print("unloaded "); | |
|
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|
2618 if (on_scavenge_root_list()) tty->print("scavenge_root "); |
| 0 | 2619 tty->print_cr("}:"); |
| 2620 } | |
| 2621 if (size () > 0) tty->print_cr(" total in heap [" INTPTR_FORMAT "," INTPTR_FORMAT "] = %d", | |
| 2622 (address)this, | |
| 2623 (address)this + size(), | |
| 2624 size()); | |
| 2625 if (relocation_size () > 0) tty->print_cr(" relocation [" INTPTR_FORMAT "," INTPTR_FORMAT "] = %d", | |
| 2626 relocation_begin(), | |
| 2627 relocation_end(), | |
| 2628 relocation_size()); | |
|
1762
0878d7bae69f
6961697: move nmethod constants section before instruction section
twisti
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1748
diff
changeset
|
2629 if (consts_size () > 0) tty->print_cr(" constants [" INTPTR_FORMAT "," INTPTR_FORMAT "] = %d", |
|
0878d7bae69f
6961697: move nmethod constants section before instruction section
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1748
diff
changeset
|
2630 consts_begin(), |
|
0878d7bae69f
6961697: move nmethod constants section before instruction section
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1748
diff
changeset
|
2631 consts_end(), |
|
0878d7bae69f
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diff
changeset
|
2632 consts_size()); |
| 1748 | 2633 if (insts_size () > 0) tty->print_cr(" main code [" INTPTR_FORMAT "," INTPTR_FORMAT "] = %d", |
| 2634 insts_begin(), | |
| 2635 insts_end(), | |
| 2636 insts_size()); | |
| 0 | 2637 if (stub_size () > 0) tty->print_cr(" stub code [" INTPTR_FORMAT "," INTPTR_FORMAT "] = %d", |
| 2638 stub_begin(), | |
| 2639 stub_end(), | |
| 2640 stub_size()); | |
|
1563
1a5913bf5e19
6951083: oops and relocations should part of nmethod not CodeBlob
twisti
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1538
diff
changeset
|
2641 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
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1538
diff
changeset
|
2642 oops_begin(), |
|
1a5913bf5e19
6951083: oops and relocations should part of nmethod not CodeBlob
twisti
parents:
1538
diff
changeset
|
2643 oops_end(), |
|
1a5913bf5e19
6951083: oops and relocations should part of nmethod not CodeBlob
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1538
diff
changeset
|
2644 oops_size()); |
|
6725
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6964458: Reimplement class meta-data storage to use native memory
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diff
changeset
|
2645 if (metadata_size () > 0) tty->print_cr(" metadata [" INTPTR_FORMAT "," INTPTR_FORMAT "] = %d", |
|
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
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|
2646 metadata_begin(), |
|
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
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|
2647 metadata_end(), |
|
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|
2648 metadata_size()); |
| 0 | 2649 if (scopes_data_size () > 0) tty->print_cr(" scopes data [" INTPTR_FORMAT "," INTPTR_FORMAT "] = %d", |
| 2650 scopes_data_begin(), | |
| 2651 scopes_data_end(), | |
| 2652 scopes_data_size()); | |
| 2653 if (scopes_pcs_size () > 0) tty->print_cr(" scopes pcs [" INTPTR_FORMAT "," INTPTR_FORMAT "] = %d", | |
| 2654 scopes_pcs_begin(), | |
| 2655 scopes_pcs_end(), | |
| 2656 scopes_pcs_size()); | |
| 2657 if (dependencies_size () > 0) tty->print_cr(" dependencies [" INTPTR_FORMAT "," INTPTR_FORMAT "] = %d", | |
| 2658 dependencies_begin(), | |
| 2659 dependencies_end(), | |
| 2660 dependencies_size()); | |
| 2661 if (handler_table_size() > 0) tty->print_cr(" handler table [" INTPTR_FORMAT "," INTPTR_FORMAT "] = %d", | |
| 2662 handler_table_begin(), | |
| 2663 handler_table_end(), | |
| 2664 handler_table_size()); | |
| 2665 if (nul_chk_table_size() > 0) tty->print_cr(" nul chk table [" INTPTR_FORMAT "," INTPTR_FORMAT "] = %d", | |
| 2666 nul_chk_table_begin(), | |
| 2667 nul_chk_table_end(), | |
| 2668 nul_chk_table_size()); | |
| 2669 } | |
| 2670 | |
|
100
c7c777385a15
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changeset
|
2671 void nmethod::print_code() { |
|
c7c777385a15
6667042: PrintAssembly option does not work without special plugin
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30
diff
changeset
|
2672 HandleMark hm; |
|
c7c777385a15
6667042: PrintAssembly option does not work without special plugin
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30
diff
changeset
|
2673 ResourceMark m; |
|
c7c777385a15
6667042: PrintAssembly option does not work without special plugin
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30
diff
changeset
|
2674 Disassembler::decode(this); |
|
c7c777385a15
6667042: PrintAssembly option does not work without special plugin
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diff
changeset
|
2675 } |
|
c7c777385a15
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30
diff
changeset
|
2676 |
|
c7c777385a15
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diff
changeset
|
2677 |
|
c7c777385a15
6667042: PrintAssembly option does not work without special plugin
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30
diff
changeset
|
2678 #ifndef PRODUCT |
| 0 | 2679 |
| 2680 void nmethod::print_scopes() { | |
| 2681 // Find the first pc desc for all scopes in the code and print it. | |
| 2682 ResourceMark rm; | |
| 2683 for (PcDesc* p = scopes_pcs_begin(); p < scopes_pcs_end(); p++) { | |
| 2684 if (p->scope_decode_offset() == DebugInformationRecorder::serialized_null) | |
| 2685 continue; | |
| 2686 | |
| 2687 ScopeDesc* sd = scope_desc_at(p->real_pc(this)); | |
| 2688 sd->print_on(tty, p); | |
| 2689 } | |
| 2690 } | |
| 2691 | |
| 2692 void nmethod::print_dependencies() { | |
| 2693 ResourceMark rm; | |
| 2694 ttyLocker ttyl; // keep the following output all in one block | |
| 2695 tty->print_cr("Dependencies:"); | |
| 2696 for (Dependencies::DepStream deps(this); deps.next(); ) { | |
| 2697 deps.print_dependency(); | |
|
6725
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6964458: Reimplement class meta-data storage to use native memory
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6266
diff
changeset
|
2698 Klass* ctxk = deps.context_type(); |
| 0 | 2699 if (ctxk != NULL) { |
| 6983 | 2700 if (ctxk->oop_is_instance() && ((InstanceKlass*)ctxk)->is_dependent_nmethod(this)) { |
| 2701 tty->print_cr(" [nmethod<=klass]%s", ctxk->external_name()); | |
| 0 | 2702 } |
| 2703 } | |
| 2704 deps.log_dependency(); // put it into the xml log also | |
| 2705 } | |
| 2706 } | |
| 2707 | |
| 2708 | |
| 2709 void nmethod::print_relocations() { | |
| 2710 ResourceMark m; // in case methods get printed via the debugger | |
| 2711 tty->print_cr("relocations:"); | |
| 2712 RelocIterator iter(this); | |
| 2713 iter.print(); | |
| 2714 if (UseRelocIndex) { | |
| 2715 jint* index_end = (jint*)relocation_end() - 1; | |
| 2716 jint index_size = *index_end; | |
| 2717 jint* index_start = (jint*)( (address)index_end - index_size ); | |
| 2718 tty->print_cr(" index @" INTPTR_FORMAT ": index_size=%d", index_start, index_size); | |
| 2719 if (index_size > 0) { | |
| 2720 jint* ip; | |
| 2721 for (ip = index_start; ip+2 <= index_end; ip += 2) | |
| 2722 tty->print_cr(" (%d %d) addr=" INTPTR_FORMAT " @" INTPTR_FORMAT, | |
| 2723 ip[0], | |
| 2724 ip[1], | |
| 2725 header_end()+ip[0], | |
| 2726 relocation_begin()-1+ip[1]); | |
| 2727 for (; ip < index_end; ip++) | |
| 2728 tty->print_cr(" (%d ?)", ip[0]); | |
| 2729 tty->print_cr(" @" INTPTR_FORMAT ": index_size=%d", ip, *ip++); | |
| 2730 tty->print_cr("reloc_end @" INTPTR_FORMAT ":", ip); | |
| 2731 } | |
| 2732 } | |
| 2733 } | |
| 2734 | |
| 2735 | |
| 2736 void nmethod::print_pcs() { | |
| 2737 ResourceMark m; // in case methods get printed via debugger | |
| 2738 tty->print_cr("pc-bytecode offsets:"); | |
| 2739 for (PcDesc* p = scopes_pcs_begin(); p < scopes_pcs_end(); p++) { | |
| 2740 p->print(this); | |
| 2741 } | |
| 2742 } | |
| 2743 | |
|
100
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6667042: PrintAssembly option does not work without special plugin
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30
diff
changeset
|
2744 #endif // PRODUCT |
| 0 | 2745 |
| 2746 const char* nmethod::reloc_string_for(u_char* begin, u_char* end) { | |
| 2747 RelocIterator iter(this, begin, end); | |
| 2748 bool have_one = false; | |
| 2749 while (iter.next()) { | |
| 2750 have_one = true; | |
| 2751 switch (iter.type()) { | |
| 2752 case relocInfo::none: return "no_reloc"; | |
| 2753 case relocInfo::oop_type: { | |
| 2754 stringStream st; | |
| 2755 oop_Relocation* r = iter.oop_reloc(); | |
| 2756 oop obj = r->oop_value(); | |
| 2757 st.print("oop("); | |
| 2758 if (obj == NULL) st.print("NULL"); | |
| 2759 else obj->print_value_on(&st); | |
| 2760 st.print(")"); | |
| 2761 return st.as_string(); | |
| 2762 } | |
|
6725
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
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6266
diff
changeset
|
2763 case relocInfo::metadata_type: { |
|
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6266
diff
changeset
|
2764 stringStream st; |
|
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
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6266
diff
changeset
|
2765 metadata_Relocation* r = iter.metadata_reloc(); |
|
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
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6266
diff
changeset
|
2766 Metadata* obj = r->metadata_value(); |
|
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6266
diff
changeset
|
2767 st.print("metadata("); |
|
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6266
diff
changeset
|
2768 if (obj == NULL) st.print("NULL"); |
|
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
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6266
diff
changeset
|
2769 else obj->print_value_on(&st); |
|
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6266
diff
changeset
|
2770 st.print(")"); |
|
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6266
diff
changeset
|
2771 return st.as_string(); |
|
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
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6266
diff
changeset
|
2772 } |
| 0 | 2773 case relocInfo::virtual_call_type: return "virtual_call"; |
| 2774 case relocInfo::opt_virtual_call_type: return "optimized virtual_call"; | |
| 2775 case relocInfo::static_call_type: return "static_call"; | |
| 2776 case relocInfo::static_stub_type: return "static_stub"; | |
| 2777 case relocInfo::runtime_call_type: return "runtime_call"; | |
| 2778 case relocInfo::external_word_type: return "external_word"; | |
| 2779 case relocInfo::internal_word_type: return "internal_word"; | |
| 2780 case relocInfo::section_word_type: return "section_word"; | |
| 2781 case relocInfo::poll_type: return "poll"; | |
| 2782 case relocInfo::poll_return_type: return "poll_return"; | |
| 2783 case relocInfo::type_mask: return "type_bit_mask"; | |
| 2784 } | |
| 2785 } | |
| 2786 return have_one ? "other" : NULL; | |
| 2787 } | |
| 2788 | |
| 2789 // Return a the last scope in (begin..end] | |
| 2790 ScopeDesc* nmethod::scope_desc_in(address begin, address end) { | |
| 2791 PcDesc* p = pc_desc_near(begin+1); | |
| 2792 if (p != NULL && p->real_pc(this) <= end) { | |
| 2793 return new ScopeDesc(this, p->scope_decode_offset(), | |
| 9707 | 2794 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
|
2795 p->return_oop()); |
| 0 | 2796 } |
| 2797 return NULL; | |
| 2798 } | |
| 2799 | |
|
6796
b31471cdc53e
7200163: add CodeComments functionality to assember stubs
kvn
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6792
diff
changeset
|
2800 void nmethod::print_nmethod_labels(outputStream* stream, address block_begin) const { |
|
1155
4e6abf09f540
6912062: disassembler plugin needs to produce symbolic information in product mode
jrose
parents:
1141
diff
changeset
|
2801 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
|
2802 if (block_begin == verified_entry_point()) stream->print_cr("[Verified Entry Point]"); |
| 9707 | 2803 if (GRAAL_ONLY(_exception_offset >= 0 &&) block_begin == exception_begin()) stream->print_cr("[Exception Handler]"); |
|
1155
4e6abf09f540
6912062: disassembler plugin needs to produce symbolic information in product mode
jrose
parents:
1141
diff
changeset
|
2804 if (block_begin == stub_begin()) stream->print_cr("[Stub Code]"); |
| 9707 | 2805 if (GRAAL_ONLY(_deoptimize_offset >= 0 &&) 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
|
2806 |
|
4a665be40fd3
6975855: don't emit deopt MH handler in C1 if not required
twisti
parents:
1644
diff
changeset
|
2807 if (has_method_handle_invokes()) |
|
4a665be40fd3
6975855: don't emit deopt MH handler in C1 if not required
twisti
parents:
1644
diff
changeset
|
2808 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
|
2809 |
|
1155
4e6abf09f540
6912062: disassembler plugin needs to produce symbolic information in product mode
jrose
parents:
1141
diff
changeset
|
2810 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
|
2811 |
|
1155
4e6abf09f540
6912062: disassembler plugin needs to produce symbolic information in product mode
jrose
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diff
changeset
|
2812 if (block_begin == entry_point()) { |
|
4e6abf09f540
6912062: disassembler plugin needs to produce symbolic information in product mode
jrose
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1141
diff
changeset
|
2813 methodHandle m = method(); |
|
4e6abf09f540
6912062: disassembler plugin needs to produce symbolic information in product mode
jrose
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diff
changeset
|
2814 if (m.not_null()) { |
|
4e6abf09f540
6912062: disassembler plugin needs to produce symbolic information in product mode
jrose
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1141
diff
changeset
|
2815 stream->print(" # "); |
|
4e6abf09f540
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jrose
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diff
changeset
|
2816 m->print_value_on(stream); |
|
4e6abf09f540
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diff
changeset
|
2817 stream->cr(); |
|
4e6abf09f540
6912062: disassembler plugin needs to produce symbolic information in product mode
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diff
changeset
|
2818 } |
|
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changeset
|
2819 if (m.not_null() && !is_osr_method()) { |
|
4e6abf09f540
6912062: disassembler plugin needs to produce symbolic information in product mode
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diff
changeset
|
2820 ResourceMark rm; |
|
4e6abf09f540
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diff
changeset
|
2821 int sizeargs = m->size_of_parameters(); |
|
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diff
changeset
|
2822 BasicType* sig_bt = NEW_RESOURCE_ARRAY(BasicType, sizeargs); |
|
4e6abf09f540
6912062: disassembler plugin needs to produce symbolic information in product mode
jrose
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diff
changeset
|
2823 VMRegPair* regs = NEW_RESOURCE_ARRAY(VMRegPair, sizeargs); |
|
4e6abf09f540
6912062: disassembler plugin needs to produce symbolic information in product mode
jrose
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1141
diff
changeset
|
2824 { |
|
4e6abf09f540
6912062: disassembler plugin needs to produce symbolic information in product mode
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diff
changeset
|
2825 int sig_index = 0; |
|
4e6abf09f540
6912062: disassembler plugin needs to produce symbolic information in product mode
jrose
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diff
changeset
|
2826 if (!m->is_static()) |
|
4e6abf09f540
6912062: disassembler plugin needs to produce symbolic information in product mode
jrose
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diff
changeset
|
2827 sig_bt[sig_index++] = T_OBJECT; // 'this' |
|
4e6abf09f540
6912062: disassembler plugin needs to produce symbolic information in product mode
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1141
diff
changeset
|
2828 for (SignatureStream ss(m->signature()); !ss.at_return_type(); ss.next()) { |
|
4e6abf09f540
6912062: disassembler plugin needs to produce symbolic information in product mode
jrose
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1141
diff
changeset
|
2829 BasicType t = ss.type(); |
|
4e6abf09f540
6912062: disassembler plugin needs to produce symbolic information in product mode
jrose
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1141
diff
changeset
|
2830 sig_bt[sig_index++] = t; |
|
4e6abf09f540
6912062: disassembler plugin needs to produce symbolic information in product mode
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1141
diff
changeset
|
2831 if (type2size[t] == 2) { |
|
4e6abf09f540
6912062: disassembler plugin needs to produce symbolic information in product mode
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1141
diff
changeset
|
2832 sig_bt[sig_index++] = T_VOID; |
|
4e6abf09f540
6912062: disassembler plugin needs to produce symbolic information in product mode
jrose
parents:
1141
diff
changeset
|
2833 } else { |
|
4e6abf09f540
6912062: disassembler plugin needs to produce symbolic information in product mode
jrose
parents:
1141
diff
changeset
|
2834 assert(type2size[t] == 1, "size is 1 or 2"); |
|
4e6abf09f540
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jrose
parents:
1141
diff
changeset
|
2835 } |
|
4e6abf09f540
6912062: disassembler plugin needs to produce symbolic information in product mode
jrose
parents:
1141
diff
changeset
|
2836 } |
|
4e6abf09f540
6912062: disassembler plugin needs to produce symbolic information in product mode
jrose
parents:
1141
diff
changeset
|
2837 assert(sig_index == sizeargs, ""); |
|
4e6abf09f540
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jrose
parents:
1141
diff
changeset
|
2838 } |
|
4e6abf09f540
6912062: disassembler plugin needs to produce symbolic information in product mode
jrose
parents:
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diff
changeset
|
2839 const char* spname = "sp"; // make arch-specific? |
|
4e6abf09f540
6912062: disassembler plugin needs to produce symbolic information in product mode
jrose
parents:
1141
diff
changeset
|
2840 intptr_t out_preserve = SharedRuntime::java_calling_convention(sig_bt, regs, sizeargs, false); |
|
4e6abf09f540
6912062: disassembler plugin needs to produce symbolic information in product mode
jrose
parents:
1141
diff
changeset
|
2841 int stack_slot_offset = this->frame_size() * wordSize; |
|
4e6abf09f540
6912062: disassembler plugin needs to produce symbolic information in product mode
jrose
parents:
1141
diff
changeset
|
2842 int tab1 = 14, tab2 = 24; |
|
4e6abf09f540
6912062: disassembler plugin needs to produce symbolic information in product mode
jrose
parents:
1141
diff
changeset
|
2843 int sig_index = 0; |
|
4e6abf09f540
6912062: disassembler plugin needs to produce symbolic information in product mode
jrose
parents:
1141
diff
changeset
|
2844 int arg_index = (m->is_static() ? 0 : -1); |
|
4e6abf09f540
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jrose
parents:
1141
diff
changeset
|
2845 bool did_old_sp = false; |
|
4e6abf09f540
6912062: disassembler plugin needs to produce symbolic information in product mode
jrose
parents:
1141
diff
changeset
|
2846 for (SignatureStream ss(m->signature()); !ss.at_return_type(); ) { |
|
4e6abf09f540
6912062: disassembler plugin needs to produce symbolic information in product mode
jrose
parents:
1141
diff
changeset
|
2847 bool at_this = (arg_index == -1); |
|
4e6abf09f540
6912062: disassembler plugin needs to produce symbolic information in product mode
jrose
parents:
1141
diff
changeset
|
2848 bool at_old_sp = false; |
|
4e6abf09f540
6912062: disassembler plugin needs to produce symbolic information in product mode
jrose
parents:
1141
diff
changeset
|
2849 BasicType t = (at_this ? T_OBJECT : ss.type()); |
|
4e6abf09f540
6912062: disassembler plugin needs to produce symbolic information in product mode
jrose
parents:
1141
diff
changeset
|
2850 assert(t == sig_bt[sig_index], "sigs in sync"); |
|
4e6abf09f540
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jrose
parents:
1141
diff
changeset
|
2851 if (at_this) |
|
4e6abf09f540
6912062: disassembler plugin needs to produce symbolic information in product mode
jrose
parents:
1141
diff
changeset
|
2852 stream->print(" # this: "); |
|
4e6abf09f540
6912062: disassembler plugin needs to produce symbolic information in product mode
jrose
parents:
1141
diff
changeset
|
2853 else |
|
4e6abf09f540
6912062: disassembler plugin needs to produce symbolic information in product mode
jrose
parents:
1141
diff
changeset
|
2854 stream->print(" # parm%d: ", arg_index); |
|
4e6abf09f540
6912062: disassembler plugin needs to produce symbolic information in product mode
jrose
parents:
1141
diff
changeset
|
2855 stream->move_to(tab1); |
|
4e6abf09f540
6912062: disassembler plugin needs to produce symbolic information in product mode
jrose
parents:
1141
diff
changeset
|
2856 VMReg fst = regs[sig_index].first(); |
|
4e6abf09f540
6912062: disassembler plugin needs to produce symbolic information in product mode
jrose
parents:
1141
diff
changeset
|
2857 VMReg snd = regs[sig_index].second(); |
|
4e6abf09f540
6912062: disassembler plugin needs to produce symbolic information in product mode
jrose
parents:
1141
diff
changeset
|
2858 if (fst->is_reg()) { |
|
4e6abf09f540
6912062: disassembler plugin needs to produce symbolic information in product mode
jrose
parents:
1141
diff
changeset
|
2859 stream->print("%s", fst->name()); |
|
4e6abf09f540
6912062: disassembler plugin needs to produce symbolic information in product mode
jrose
parents:
1141
diff
changeset
|
2860 if (snd->is_valid()) { |
|
4e6abf09f540
6912062: disassembler plugin needs to produce symbolic information in product mode
jrose
parents:
1141
diff
changeset
|
2861 stream->print(":%s", snd->name()); |
|
4e6abf09f540
6912062: disassembler plugin needs to produce symbolic information in product mode
jrose
parents:
1141
diff
changeset
|
2862 } |
|
4e6abf09f540
6912062: disassembler plugin needs to produce symbolic information in product mode
jrose
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1141
diff
changeset
|
2863 } else if (fst->is_stack()) { |
|
4e6abf09f540
6912062: disassembler plugin needs to produce symbolic information in product mode
jrose
parents:
1141
diff
changeset
|
2864 int offset = fst->reg2stack() * VMRegImpl::stack_slot_size + stack_slot_offset; |
|
4e6abf09f540
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jrose
parents:
1141
diff
changeset
|
2865 if (offset == stack_slot_offset) at_old_sp = true; |
|
4e6abf09f540
6912062: disassembler plugin needs to produce symbolic information in product mode
jrose
parents:
1141
diff
changeset
|
2866 stream->print("[%s+0x%x]", spname, offset); |
|
4e6abf09f540
6912062: disassembler plugin needs to produce symbolic information in product mode
jrose
parents:
1141
diff
changeset
|
2867 } else { |
|
4e6abf09f540
6912062: disassembler plugin needs to produce symbolic information in product mode
jrose
parents:
1141
diff
changeset
|
2868 stream->print("reg%d:%d??", (int)(intptr_t)fst, (int)(intptr_t)snd); |
|
4e6abf09f540
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jrose
parents:
1141
diff
changeset
|
2869 } |
|
4e6abf09f540
6912062: disassembler plugin needs to produce symbolic information in product mode
jrose
parents:
1141
diff
changeset
|
2870 stream->print(" "); |
|
4e6abf09f540
6912062: disassembler plugin needs to produce symbolic information in product mode
jrose
parents:
1141
diff
changeset
|
2871 stream->move_to(tab2); |
|
4e6abf09f540
6912062: disassembler plugin needs to produce symbolic information in product mode
jrose
parents:
1141
diff
changeset
|
2872 stream->print("= "); |
|
4e6abf09f540
6912062: disassembler plugin needs to produce symbolic information in product mode
jrose
parents:
1141
diff
changeset
|
2873 if (at_this) { |
|
4e6abf09f540
6912062: disassembler plugin needs to produce symbolic information in product mode
jrose
parents:
1141
diff
changeset
|
2874 m->method_holder()->print_value_on(stream); |
|
4e6abf09f540
6912062: disassembler plugin needs to produce symbolic information in product mode
jrose
parents:
1141
diff
changeset
|
2875 } else { |
|
4e6abf09f540
6912062: disassembler plugin needs to produce symbolic information in product mode
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parents:
1141
diff
changeset
|
2876 bool did_name = false; |
|
4e6abf09f540
6912062: disassembler plugin needs to produce symbolic information in product mode
jrose
parents:
1141
diff
changeset
|
2877 if (!at_this && ss.is_object()) { |
|
2177
3582bf76420e
6990754: Use native memory and reference counting to implement SymbolTable
coleenp
parents:
2142
diff
changeset
|
2878 Symbol* name = ss.as_symbol_or_null(); |
|
1155
4e6abf09f540
6912062: disassembler plugin needs to produce symbolic information in product mode
jrose
parents:
1141
diff
changeset
|
2879 if (name != NULL) { |
|
4e6abf09f540
6912062: disassembler plugin needs to produce symbolic information in product mode
jrose
parents:
1141
diff
changeset
|
2880 name->print_value_on(stream); |
|
4e6abf09f540
6912062: disassembler plugin needs to produce symbolic information in product mode
jrose
parents:
1141
diff
changeset
|
2881 did_name = true; |
|
4e6abf09f540
6912062: disassembler plugin needs to produce symbolic information in product mode
jrose
parents:
1141
diff
changeset
|
2882 } |
|
4e6abf09f540
6912062: disassembler plugin needs to produce symbolic information in product mode
jrose
parents:
1141
diff
changeset
|
2883 } |
|
4e6abf09f540
6912062: disassembler plugin needs to produce symbolic information in product mode
jrose
parents:
1141
diff
changeset
|
2884 if (!did_name) |
|
4e6abf09f540
6912062: disassembler plugin needs to produce symbolic information in product mode
jrose
parents:
1141
diff
changeset
|
2885 stream->print("%s", type2name(t)); |
|
4e6abf09f540
6912062: disassembler plugin needs to produce symbolic information in product mode
jrose
parents:
1141
diff
changeset
|
2886 } |
|
4e6abf09f540
6912062: disassembler plugin needs to produce symbolic information in product mode
jrose
parents:
1141
diff
changeset
|
2887 if (at_old_sp) { |
|
4e6abf09f540
6912062: disassembler plugin needs to produce symbolic information in product mode
jrose
parents:
1141
diff
changeset
|
2888 stream->print(" (%s of caller)", spname); |
|
4e6abf09f540
6912062: disassembler plugin needs to produce symbolic information in product mode
jrose
parents:
1141
diff
changeset
|
2889 did_old_sp = true; |
|
4e6abf09f540
6912062: disassembler plugin needs to produce symbolic information in product mode
jrose
parents:
1141
diff
changeset
|
2890 } |
|
4e6abf09f540
6912062: disassembler plugin needs to produce symbolic information in product mode
jrose
parents:
1141
diff
changeset
|
2891 stream->cr(); |
|
4e6abf09f540
6912062: disassembler plugin needs to produce symbolic information in product mode
jrose
parents:
1141
diff
changeset
|
2892 sig_index += type2size[t]; |
|
4e6abf09f540
6912062: disassembler plugin needs to produce symbolic information in product mode
jrose
parents:
1141
diff
changeset
|
2893 arg_index += 1; |
|
4e6abf09f540
6912062: disassembler plugin needs to produce symbolic information in product mode
jrose
parents:
1141
diff
changeset
|
2894 if (!at_this) ss.next(); |
|
4e6abf09f540
6912062: disassembler plugin needs to produce symbolic information in product mode
jrose
parents:
1141
diff
changeset
|
2895 } |
|
4e6abf09f540
6912062: disassembler plugin needs to produce symbolic information in product mode
jrose
parents:
1141
diff
changeset
|
2896 if (!did_old_sp) { |
|
4e6abf09f540
6912062: disassembler plugin needs to produce symbolic information in product mode
jrose
parents:
1141
diff
changeset
|
2897 stream->print(" # "); |
|
4e6abf09f540
6912062: disassembler plugin needs to produce symbolic information in product mode
jrose
parents:
1141
diff
changeset
|
2898 stream->move_to(tab1); |
|
4e6abf09f540
6912062: disassembler plugin needs to produce symbolic information in product mode
jrose
parents:
1141
diff
changeset
|
2899 stream->print("[%s+0x%x]", spname, stack_slot_offset); |
|
4e6abf09f540
6912062: disassembler plugin needs to produce symbolic information in product mode
jrose
parents:
1141
diff
changeset
|
2900 stream->print(" (%s of caller)", spname); |
|
4e6abf09f540
6912062: disassembler plugin needs to produce symbolic information in product mode
jrose
parents:
1141
diff
changeset
|
2901 stream->cr(); |
|
4e6abf09f540
6912062: disassembler plugin needs to produce symbolic information in product mode
jrose
parents:
1141
diff
changeset
|
2902 } |
|
4e6abf09f540
6912062: disassembler plugin needs to produce symbolic information in product mode
jrose
parents:
1141
diff
changeset
|
2903 } |
|
4e6abf09f540
6912062: disassembler plugin needs to produce symbolic information in product mode
jrose
parents:
1141
diff
changeset
|
2904 } |
|
4e6abf09f540
6912062: disassembler plugin needs to produce symbolic information in product mode
jrose
parents:
1141
diff
changeset
|
2905 } |
|
4e6abf09f540
6912062: disassembler plugin needs to produce symbolic information in product mode
jrose
parents:
1141
diff
changeset
|
2906 |
| 0 | 2907 void nmethod::print_code_comment_on(outputStream* st, int column, u_char* begin, u_char* end) { |
| 2908 // First, find an oopmap in (begin, end]. | |
| 2909 // We use the odd half-closed interval so that oop maps and scope descs | |
| 2910 // which are tied to the byte after a call are printed with the call itself. | |
| 1748 | 2911 address base = code_begin(); |
| 0 | 2912 OopMapSet* oms = oop_maps(); |
| 2913 if (oms != NULL) { | |
| 2914 for (int i = 0, imax = oms->size(); i < imax; i++) { | |
| 2915 OopMap* om = oms->at(i); | |
| 2916 address pc = base + om->offset(); | |
| 2917 if (pc > begin) { | |
| 2918 if (pc <= end) { | |
|
100
c7c777385a15
6667042: PrintAssembly option does not work without special plugin
jrose
parents:
30
diff
changeset
|
2919 st->move_to(column); |
|
c7c777385a15
6667042: PrintAssembly option does not work without special plugin
jrose
parents:
30
diff
changeset
|
2920 st->print("; "); |
|
c7c777385a15
6667042: PrintAssembly option does not work without special plugin
jrose
parents:
30
diff
changeset
|
2921 om->print_on(st); |
| 0 | 2922 } |
| 2923 break; | |
| 2924 } | |
| 2925 } | |
| 2926 } | |
|
100
c7c777385a15
6667042: PrintAssembly option does not work without special plugin
jrose
parents:
30
diff
changeset
|
2927 |
|
c7c777385a15
6667042: PrintAssembly option does not work without special plugin
jrose
parents:
30
diff
changeset
|
2928 // Print any debug info present at this pc. |
| 0 | 2929 ScopeDesc* sd = scope_desc_in(begin, end); |
| 2930 if (sd != NULL) { | |
|
100
c7c777385a15
6667042: PrintAssembly option does not work without special plugin
jrose
parents:
30
diff
changeset
|
2931 st->move_to(column); |
| 0 | 2932 if (sd->bci() == SynchronizationEntryBCI) { |
| 2933 st->print(";*synchronization entry"); | |
| 2934 } else { | |
|
6725
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6266
diff
changeset
|
2935 if (sd->method() == NULL) { |
|
100
c7c777385a15
6667042: PrintAssembly option does not work without special plugin
jrose
parents:
30
diff
changeset
|
2936 st->print("method is NULL"); |
| 0 | 2937 } else if (sd->method()->is_native()) { |
|
100
c7c777385a15
6667042: PrintAssembly option does not work without special plugin
jrose
parents:
30
diff
changeset
|
2938 st->print("method is native"); |
| 0 | 2939 } else { |
| 2142 | 2940 Bytecodes::Code bc = sd->method()->java_code_at(sd->bci()); |
| 0 | 2941 st->print(";*%s", Bytecodes::name(bc)); |
| 2942 switch (bc) { | |
| 2943 case Bytecodes::_invokevirtual: | |
| 2944 case Bytecodes::_invokespecial: | |
| 2945 case Bytecodes::_invokestatic: | |
| 2946 case Bytecodes::_invokeinterface: | |
| 2947 { | |
| 2142 | 2948 Bytecode_invoke invoke(sd->method(), sd->bci()); |
| 0 | 2949 st->print(" "); |
| 2142 | 2950 if (invoke.name() != NULL) |
| 2951 invoke.name()->print_symbol_on(st); | |
| 0 | 2952 else |
| 2953 st->print("<UNKNOWN>"); | |
| 2954 break; | |
| 2955 } | |
| 2956 case Bytecodes::_getfield: | |
| 2957 case Bytecodes::_putfield: | |
| 2958 case Bytecodes::_getstatic: | |
| 2959 case Bytecodes::_putstatic: | |
| 2960 { | |
| 2142 | 2961 Bytecode_field field(sd->method(), sd->bci()); |
| 0 | 2962 st->print(" "); |
| 2142 | 2963 if (field.name() != NULL) |
| 2964 field.name()->print_symbol_on(st); | |
| 0 | 2965 else |
| 2966 st->print("<UNKNOWN>"); | |
| 2967 } | |
| 2968 } | |
| 2969 } | |
| 2970 } | |
|
100
c7c777385a15
6667042: PrintAssembly option does not work without special plugin
jrose
parents:
30
diff
changeset
|
2971 |
| 0 | 2972 // Print all scopes |
| 2973 for (;sd != NULL; sd = sd->sender()) { | |
|
100
c7c777385a15
6667042: PrintAssembly option does not work without special plugin
jrose
parents:
30
diff
changeset
|
2974 st->move_to(column); |
| 0 | 2975 st->print("; -"); |
|
6725
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
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6266
diff
changeset
|
2976 if (sd->method() == NULL) { |
|
100
c7c777385a15
6667042: PrintAssembly option does not work without special plugin
jrose
parents:
30
diff
changeset
|
2977 st->print("method is NULL"); |
| 0 | 2978 } else { |
| 2979 sd->method()->print_short_name(st); | |
| 2980 } | |
| 2981 int lineno = sd->method()->line_number_from_bci(sd->bci()); | |
| 2982 if (lineno != -1) { | |
| 2983 st->print("@%d (line %d)", sd->bci(), lineno); | |
| 2984 } else { | |
| 2985 st->print("@%d", sd->bci()); | |
| 2986 } | |
| 2987 st->cr(); | |
| 2988 } | |
| 2989 } | |
| 2990 | |
| 2991 // Print relocation information | |
| 2992 const char* str = reloc_string_for(begin, end); | |
| 2993 if (str != NULL) { | |
| 2994 if (sd != NULL) st->cr(); | |
|
100
c7c777385a15
6667042: PrintAssembly option does not work without special plugin
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parents:
30
diff
changeset
|
2995 st->move_to(column); |
| 0 | 2996 st->print("; {%s}", str); |
| 2997 } | |
| 1748 | 2998 int cont_offset = ImplicitExceptionTable(this).at(begin - code_begin()); |
| 0 | 2999 if (cont_offset != 0) { |
|
100
c7c777385a15
6667042: PrintAssembly option does not work without special plugin
jrose
parents:
30
diff
changeset
|
3000 st->move_to(column); |
| 1748 | 3001 st->print("; implicit exception: dispatches to " INTPTR_FORMAT, code_begin() + cont_offset); |
| 0 | 3002 } |
| 3003 | |
| 3004 } | |
| 3005 | |
|
100
c7c777385a15
6667042: PrintAssembly option does not work without special plugin
jrose
parents:
30
diff
changeset
|
3006 #ifndef PRODUCT |
|
c7c777385a15
6667042: PrintAssembly option does not work without special plugin
jrose
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30
diff
changeset
|
3007 |
| 0 | 3008 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
|
3009 st->print("nmethod"); |
|
3d58a4983660
7022998: JSR 292 recursive method handle calls inline themselves infinitely
twisti
parents:
2376
diff
changeset
|
3010 print_on(st, NULL); |
| 0 | 3011 } |
| 3012 | |
| 3013 void nmethod::print_calls(outputStream* st) { | |
| 3014 RelocIterator iter(this); | |
| 3015 while (iter.next()) { | |
| 3016 switch (iter.type()) { | |
| 3017 case relocInfo::virtual_call_type: | |
| 3018 case relocInfo::opt_virtual_call_type: { | |
| 3019 VerifyMutexLocker mc(CompiledIC_lock); | |
| 3020 CompiledIC_at(iter.reloc())->print(); | |
| 3021 break; | |
| 3022 } | |
| 3023 case relocInfo::static_call_type: | |
| 3024 st->print_cr("Static call at " INTPTR_FORMAT, iter.reloc()->addr()); | |
| 3025 compiledStaticCall_at(iter.reloc())->print(); | |
| 3026 break; | |
| 3027 } | |
| 3028 } | |
| 3029 } | |
| 3030 | |
| 3031 void nmethod::print_handler_table() { | |
| 3032 ExceptionHandlerTable(this).print(); | |
| 3033 } | |
| 3034 | |
| 3035 void nmethod::print_nul_chk_table() { | |
| 1748 | 3036 ImplicitExceptionTable(this).print(code_begin()); |
| 0 | 3037 } |
| 3038 | |
| 9707 | 3039 #endif // PRODUCT |
| 3040 | |
| 0 | 3041 void nmethod::print_statistics() { |
| 3042 ttyLocker ttyl; | |
| 3043 if (xtty != NULL) xtty->head("statistics type='nmethod'"); | |
| 3044 nmethod_stats.print_native_nmethod_stats(); | |
| 3045 nmethod_stats.print_nmethod_stats(); | |
| 3046 DebugInformationRecorder::print_statistics(); | |
| 3047 nmethod_stats.print_pc_stats(); | |
| 3048 Dependencies::print_statistics(); | |
| 3049 if (xtty != NULL) xtty->tail("statistics"); | |
| 3050 } |