Mercurial > hg > graal-compiler
annotate src/share/vm/code/nmethod.cpp @ 14909:4ca6dc0799b6
Backout jdk9 merge
| author | Gilles Duboscq <duboscq@ssw.jku.at> |
|---|---|
| date | Tue, 01 Apr 2014 13:57:07 +0200 |
| parents | b10e42998d01 |
| children | 169caf662ac7 |
| rev | line source |
|---|---|
| 0 | 1 /* |
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2 * Copyright (c) 1997, 2013, 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 | |
| 14909 | 56 #ifndef USDT2 |
| 57 HS_DTRACE_PROBE_DECL8(hotspot, compiled__method__load, | |
| 58 const char*, int, const char*, int, const char*, int, void*, size_t); | |
| 59 | |
| 60 HS_DTRACE_PROBE_DECL6(hotspot, compiled__method__unload, | |
| 61 char*, int, char*, int, char*, int); | |
| 62 | |
| 63 #define DTRACE_METHOD_UNLOAD_PROBE(method) \ | |
| 64 { \ | |
| 65 Method* m = (method); \ | |
| 66 if (m != NULL) { \ | |
| 67 Symbol* klass_name = m->klass_name(); \ | |
| 68 Symbol* name = m->name(); \ | |
| 69 Symbol* signature = m->signature(); \ | |
| 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 } | |
| 76 #else /* USDT2 */ | |
| 4006 | 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 } | |
| 14909 | 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) { |
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100 return false; |
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101 } |
| 0 | 102 return compiler()->is_c1(); |
| 103 } | |
| 9707 | 104 bool nmethod::is_compiled_by_graal() const { |
| 105 if (compiler() == NULL || method() == NULL) return false; // can happen during debug printing | |
| 106 if (is_native_method()) return false; | |
| 107 return compiler()->is_graal(); | |
| 108 } | |
| 0 | 109 bool nmethod::is_compiled_by_c2() const { |
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110 if (compiler() == NULL) { |
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111 return false; |
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112 } |
| 0 | 113 return compiler()->is_c2(); |
| 114 } | |
| 1692 | 115 bool nmethod::is_compiled_by_shark() const { |
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116 if (compiler() == NULL) { |
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117 return false; |
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118 } |
| 1692 | 119 return compiler()->is_shark(); |
| 120 } | |
| 0 | 121 |
| 122 | |
| 123 | |
| 124 //--------------------------------------------------------------------------------- | |
| 125 // NMethod statistics | |
| 126 // They are printed under various flags, including: | |
| 127 // PrintC1Statistics, PrintOptoStatistics, LogVMOutput, and LogCompilation. | |
| 128 // (In the latter two cases, they like other stats are printed to the log only.) | |
| 129 | |
| 130 // These variables are put into one block to reduce relocations | |
| 131 // and make it simpler to print from the debugger. | |
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132 struct java_nmethod_stats_struct { |
| 0 | 133 int nmethod_count; |
| 134 int total_size; | |
| 135 int relocation_size; | |
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136 int consts_size; |
| 1748 | 137 int insts_size; |
| 0 | 138 int stub_size; |
| 139 int scopes_data_size; | |
| 140 int scopes_pcs_size; | |
| 141 int dependencies_size; | |
| 142 int handler_table_size; | |
| 143 int nul_chk_table_size; | |
| 144 int oops_size; | |
| 145 | |
| 146 void note_nmethod(nmethod* nm) { | |
| 147 nmethod_count += 1; | |
| 148 total_size += nm->size(); | |
| 149 relocation_size += nm->relocation_size(); | |
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150 consts_size += nm->consts_size(); |
| 1748 | 151 insts_size += nm->insts_size(); |
| 0 | 152 stub_size += nm->stub_size(); |
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153 oops_size += nm->oops_size(); |
| 0 | 154 scopes_data_size += nm->scopes_data_size(); |
| 155 scopes_pcs_size += nm->scopes_pcs_size(); | |
| 156 dependencies_size += nm->dependencies_size(); | |
| 157 handler_table_size += nm->handler_table_size(); | |
| 158 nul_chk_table_size += nm->nul_chk_table_size(); | |
| 159 } | |
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160 void print_nmethod_stats(const char* name) { |
| 0 | 161 if (nmethod_count == 0) return; |
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162 tty->print_cr("Statistics for %d bytecoded nmethods for %s:", nmethod_count, name); |
| 0 | 163 if (total_size != 0) tty->print_cr(" total in heap = %d", total_size); |
| 164 if (relocation_size != 0) tty->print_cr(" relocation = %d", relocation_size); | |
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165 if (consts_size != 0) tty->print_cr(" constants = %d", consts_size); |
| 1748 | 166 if (insts_size != 0) tty->print_cr(" main code = %d", insts_size); |
| 0 | 167 if (stub_size != 0) tty->print_cr(" stub code = %d", stub_size); |
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168 if (oops_size != 0) tty->print_cr(" oops = %d", oops_size); |
| 0 | 169 if (scopes_data_size != 0) tty->print_cr(" scopes data = %d", scopes_data_size); |
| 170 if (scopes_pcs_size != 0) tty->print_cr(" scopes pcs = %d", scopes_pcs_size); | |
| 171 if (dependencies_size != 0) tty->print_cr(" dependencies = %d", dependencies_size); | |
| 172 if (handler_table_size != 0) tty->print_cr(" handler table = %d", handler_table_size); | |
| 173 if (nul_chk_table_size != 0) tty->print_cr(" nul chk table = %d", nul_chk_table_size); | |
| 174 } | |
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175 }; |
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176 |
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177 struct native_nmethod_stats_struct { |
| 0 | 178 int native_nmethod_count; |
| 179 int native_total_size; | |
| 180 int native_relocation_size; | |
| 1748 | 181 int native_insts_size; |
| 0 | 182 int native_oops_size; |
| 183 void note_native_nmethod(nmethod* nm) { | |
| 184 native_nmethod_count += 1; | |
| 185 native_total_size += nm->size(); | |
| 186 native_relocation_size += nm->relocation_size(); | |
| 1748 | 187 native_insts_size += nm->insts_size(); |
| 0 | 188 native_oops_size += nm->oops_size(); |
| 189 } | |
| 190 void print_native_nmethod_stats() { | |
| 191 if (native_nmethod_count == 0) return; | |
| 192 tty->print_cr("Statistics for %d native nmethods:", native_nmethod_count); | |
| 193 if (native_total_size != 0) tty->print_cr(" N. total size = %d", native_total_size); | |
| 194 if (native_relocation_size != 0) tty->print_cr(" N. relocation = %d", native_relocation_size); | |
| 1748 | 195 if (native_insts_size != 0) tty->print_cr(" N. main code = %d", native_insts_size); |
| 0 | 196 if (native_oops_size != 0) tty->print_cr(" N. oops = %d", native_oops_size); |
| 197 } | |
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198 }; |
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199 |
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200 struct pc_nmethod_stats_struct { |
| 0 | 201 int pc_desc_resets; // number of resets (= number of caches) |
| 202 int pc_desc_queries; // queries to nmethod::find_pc_desc | |
| 203 int pc_desc_approx; // number of those which have approximate true | |
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204 int pc_desc_repeats; // number of _pc_descs[0] hits |
| 0 | 205 int pc_desc_hits; // number of LRU cache hits |
| 206 int pc_desc_tests; // total number of PcDesc examinations | |
| 207 int pc_desc_searches; // total number of quasi-binary search steps | |
| 208 int pc_desc_adds; // number of LUR cache insertions | |
| 209 | |
| 210 void print_pc_stats() { | |
| 211 tty->print_cr("PcDesc Statistics: %d queries, %.2f comparisons per query", | |
| 212 pc_desc_queries, | |
| 213 (double)(pc_desc_tests + pc_desc_searches) | |
| 214 / pc_desc_queries); | |
| 215 tty->print_cr(" caches=%d queries=%d/%d, hits=%d+%d, tests=%d+%d, adds=%d", | |
| 216 pc_desc_resets, | |
| 217 pc_desc_queries, pc_desc_approx, | |
| 218 pc_desc_repeats, pc_desc_hits, | |
| 219 pc_desc_tests, pc_desc_searches, pc_desc_adds); | |
| 220 } | |
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221 }; |
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222 |
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223 #ifdef COMPILER1 |
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224 static java_nmethod_stats_struct c1_java_nmethod_stats; |
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225 #endif |
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226 #ifdef COMPILER2 |
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227 static java_nmethod_stats_struct c2_java_nmethod_stats; |
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228 #endif |
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229 #ifdef GRAAL |
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230 static java_nmethod_stats_struct graal_java_nmethod_stats; |
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231 #endif |
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232 static java_nmethod_stats_struct unknown_java_nmethod_stats; |
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233 |
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234 static native_nmethod_stats_struct native_nmethod_stats; |
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235 static pc_nmethod_stats_struct pc_nmethod_stats; |
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236 |
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237 static void note_java_nmethod(nmethod* nm) { |
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238 #ifdef COMPILER1 |
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239 if (nm->is_compiled_by_c1()) { |
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240 c1_java_nmethod_stats.note_nmethod(nm); |
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241 } else |
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242 #endif |
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243 #ifdef COMPILER2 |
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244 if (nm->is_compiled_by_c2()) { |
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245 c2_java_nmethod_stats.note_nmethod(nm); |
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246 } else |
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247 #endif |
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248 #ifdef GRAAL |
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249 if (nm->is_compiled_by_graal()) { |
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250 graal_java_nmethod_stats.note_nmethod(nm); |
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251 } else |
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252 #endif |
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253 { |
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254 unknown_java_nmethod_stats.note_nmethod(nm); |
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255 } |
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256 } |
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257 |
| 0 | 258 //--------------------------------------------------------------------------------- |
| 259 | |
| 260 | |
| 261 ExceptionCache::ExceptionCache(Handle exception, address pc, address handler) { | |
| 262 assert(pc != NULL, "Must be non null"); | |
| 263 assert(exception.not_null(), "Must be non null"); | |
| 264 assert(handler != NULL, "Must be non null"); | |
| 265 | |
| 266 _count = 0; | |
| 267 _exception_type = exception->klass(); | |
| 268 _next = NULL; | |
| 269 | |
| 270 add_address_and_handler(pc,handler); | |
| 271 } | |
| 272 | |
| 273 | |
| 274 address ExceptionCache::match(Handle exception, address pc) { | |
| 275 assert(pc != NULL,"Must be non null"); | |
| 276 assert(exception.not_null(),"Must be non null"); | |
| 277 if (exception->klass() == exception_type()) { | |
| 278 return (test_address(pc)); | |
| 279 } | |
| 280 | |
| 281 return NULL; | |
| 282 } | |
| 283 | |
| 284 | |
| 285 bool ExceptionCache::match_exception_with_space(Handle exception) { | |
| 286 assert(exception.not_null(),"Must be non null"); | |
| 287 if (exception->klass() == exception_type() && count() < cache_size) { | |
| 288 return true; | |
| 289 } | |
| 290 return false; | |
| 291 } | |
| 292 | |
| 293 | |
| 294 address ExceptionCache::test_address(address addr) { | |
| 295 for (int i=0; i<count(); i++) { | |
| 296 if (pc_at(i) == addr) { | |
| 297 return handler_at(i); | |
| 298 } | |
| 299 } | |
| 300 return NULL; | |
| 301 } | |
| 302 | |
| 303 | |
| 304 bool ExceptionCache::add_address_and_handler(address addr, address handler) { | |
| 305 if (test_address(addr) == handler) return true; | |
| 306 if (count() < cache_size) { | |
| 307 set_pc_at(count(),addr); | |
| 308 set_handler_at(count(), handler); | |
| 309 increment_count(); | |
| 310 return true; | |
| 311 } | |
| 312 return false; | |
| 313 } | |
| 314 | |
| 315 | |
| 316 // private method for handling exception cache | |
| 317 // These methods are private, and used to manipulate the exception cache | |
| 318 // directly. | |
| 319 ExceptionCache* nmethod::exception_cache_entry_for_exception(Handle exception) { | |
| 320 ExceptionCache* ec = exception_cache(); | |
| 321 while (ec != NULL) { | |
| 322 if (ec->match_exception_with_space(exception)) { | |
| 323 return ec; | |
| 324 } | |
| 325 ec = ec->next(); | |
| 326 } | |
| 327 return NULL; | |
| 328 } | |
| 329 | |
| 330 | |
| 331 //----------------------------------------------------------------------------- | |
| 332 | |
| 333 | |
| 334 // Helper used by both find_pc_desc methods. | |
| 335 static inline bool match_desc(PcDesc* pc, int pc_offset, bool approximate) { | |
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336 NOT_PRODUCT(++pc_nmethod_stats.pc_desc_tests); |
| 0 | 337 if (!approximate) |
| 338 return pc->pc_offset() == pc_offset; | |
| 339 else | |
| 340 return (pc-1)->pc_offset() < pc_offset && pc_offset <= pc->pc_offset(); | |
| 341 } | |
| 342 | |
| 343 void PcDescCache::reset_to(PcDesc* initial_pc_desc) { | |
| 344 if (initial_pc_desc == NULL) { | |
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345 _pc_descs[0] = NULL; // native method; no PcDescs at all |
| 0 | 346 return; |
| 347 } | |
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348 NOT_PRODUCT(++pc_nmethod_stats.pc_desc_resets); |
| 0 | 349 // reset the cache by filling it with benign (non-null) values |
| 350 assert(initial_pc_desc->pc_offset() < 0, "must be sentinel"); | |
| 351 for (int i = 0; i < cache_size; i++) | |
| 352 _pc_descs[i] = initial_pc_desc; | |
| 353 } | |
| 354 | |
| 355 PcDesc* PcDescCache::find_pc_desc(int pc_offset, bool approximate) { | |
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356 NOT_PRODUCT(++pc_nmethod_stats.pc_desc_queries); |
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357 NOT_PRODUCT(if (approximate) ++pc_nmethod_stats.pc_desc_approx); |
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358 |
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359 // Note: one might think that caching the most recently |
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360 // read value separately would be a win, but one would be |
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361 // wrong. When many threads are updating it, the cache |
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362 // line it's in would bounce between caches, negating |
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363 // any benefit. |
| 0 | 364 |
| 365 // In order to prevent race conditions do not load cache elements | |
| 366 // repeatedly, but use a local copy: | |
| 367 PcDesc* res; | |
| 368 | |
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369 // Step one: Check the most recently added value. |
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370 res = _pc_descs[0]; |
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371 if (res == NULL) return NULL; // native method; no PcDescs at all |
| 0 | 372 if (match_desc(res, pc_offset, approximate)) { |
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373 NOT_PRODUCT(++pc_nmethod_stats.pc_desc_repeats); |
| 0 | 374 return res; |
| 375 } | |
| 376 | |
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377 // Step two: Check the rest of the LRU cache. |
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378 for (int i = 1; i < cache_size; ++i) { |
| 0 | 379 res = _pc_descs[i]; |
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380 if (res->pc_offset() < 0) break; // optimization: skip empty cache |
| 0 | 381 if (match_desc(res, pc_offset, approximate)) { |
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382 NOT_PRODUCT(++pc_nmethod_stats.pc_desc_hits); |
| 0 | 383 return res; |
| 384 } | |
| 385 } | |
| 386 | |
| 387 // Report failure. | |
| 388 return NULL; | |
| 389 } | |
| 390 | |
| 391 void PcDescCache::add_pc_desc(PcDesc* pc_desc) { | |
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392 NOT_PRODUCT(++pc_nmethod_stats.pc_desc_adds); |
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393 // Update the LRU cache by shifting pc_desc forward. |
| 0 | 394 for (int i = 0; i < cache_size; i++) { |
| 395 PcDesc* next = _pc_descs[i]; | |
| 396 _pc_descs[i] = pc_desc; | |
| 397 pc_desc = next; | |
| 398 } | |
| 399 } | |
| 400 | |
| 401 // adjust pcs_size so that it is a multiple of both oopSize and | |
| 402 // sizeof(PcDesc) (assumes that if sizeof(PcDesc) is not a multiple | |
| 403 // of oopSize, then 2*sizeof(PcDesc) is) | |
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404 static int adjust_pcs_size(int pcs_size) { |
| 0 | 405 int nsize = round_to(pcs_size, oopSize); |
| 406 if ((nsize % sizeof(PcDesc)) != 0) { | |
| 407 nsize = pcs_size + sizeof(PcDesc); | |
| 408 } | |
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409 assert((nsize % oopSize) == 0, "correct alignment"); |
| 0 | 410 return nsize; |
| 411 } | |
| 412 | |
| 413 //----------------------------------------------------------------------------- | |
| 414 | |
| 415 | |
| 416 void nmethod::add_exception_cache_entry(ExceptionCache* new_entry) { | |
| 417 assert(ExceptionCache_lock->owned_by_self(),"Must hold the ExceptionCache_lock"); | |
| 418 assert(new_entry != NULL,"Must be non null"); | |
| 419 assert(new_entry->next() == NULL, "Must be null"); | |
| 420 | |
| 421 if (exception_cache() != NULL) { | |
| 422 new_entry->set_next(exception_cache()); | |
| 423 } | |
| 424 set_exception_cache(new_entry); | |
| 425 } | |
| 426 | |
| 427 void nmethod::remove_from_exception_cache(ExceptionCache* ec) { | |
| 428 ExceptionCache* prev = NULL; | |
| 429 ExceptionCache* curr = exception_cache(); | |
| 430 assert(curr != NULL, "nothing to remove"); | |
| 431 // find the previous and next entry of ec | |
| 432 while (curr != ec) { | |
| 433 prev = curr; | |
| 434 curr = curr->next(); | |
| 435 assert(curr != NULL, "ExceptionCache not found"); | |
| 436 } | |
| 437 // now: curr == ec | |
| 438 ExceptionCache* next = curr->next(); | |
| 439 if (prev == NULL) { | |
| 440 set_exception_cache(next); | |
| 441 } else { | |
| 442 prev->set_next(next); | |
| 443 } | |
| 444 delete curr; | |
| 445 } | |
| 446 | |
| 447 | |
| 448 // public method for accessing the exception cache | |
| 449 // These are the public access methods. | |
| 450 address nmethod::handler_for_exception_and_pc(Handle exception, address pc) { | |
| 451 // We never grab a lock to read the exception cache, so we may | |
| 452 // have false negatives. This is okay, as it can only happen during | |
| 453 // the first few exception lookups for a given nmethod. | |
| 454 ExceptionCache* ec = exception_cache(); | |
| 455 while (ec != NULL) { | |
| 456 address ret_val; | |
| 457 if ((ret_val = ec->match(exception,pc)) != NULL) { | |
| 458 return ret_val; | |
| 459 } | |
| 460 ec = ec->next(); | |
| 461 } | |
| 462 return NULL; | |
| 463 } | |
| 464 | |
| 465 | |
| 466 void nmethod::add_handler_for_exception_and_pc(Handle exception, address pc, address handler) { | |
| 467 // There are potential race conditions during exception cache updates, so we | |
| 468 // must own the ExceptionCache_lock before doing ANY modifications. Because | |
| 605 | 469 // we don't lock during reads, it is possible to have several threads attempt |
| 0 | 470 // to update the cache with the same data. We need to check for already inserted |
| 471 // copies of the current data before adding it. | |
| 472 | |
| 473 MutexLocker ml(ExceptionCache_lock); | |
| 474 ExceptionCache* target_entry = exception_cache_entry_for_exception(exception); | |
| 475 | |
| 476 if (target_entry == NULL || !target_entry->add_address_and_handler(pc,handler)) { | |
| 477 target_entry = new ExceptionCache(exception,pc,handler); | |
| 478 add_exception_cache_entry(target_entry); | |
| 479 } | |
| 480 } | |
| 481 | |
| 482 | |
| 483 //-------------end of code for ExceptionCache-------------- | |
| 484 | |
| 485 | |
| 486 int nmethod::total_size() const { | |
| 487 return | |
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488 consts_size() + |
| 1748 | 489 insts_size() + |
| 0 | 490 stub_size() + |
| 491 scopes_data_size() + | |
| 492 scopes_pcs_size() + | |
| 493 handler_table_size() + | |
| 494 nul_chk_table_size(); | |
| 495 } | |
| 496 | |
| 497 const char* nmethod::compile_kind() const { | |
| 498 if (is_osr_method()) return "osr"; | |
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499 if (method() != NULL && is_native_method()) return "c2n"; |
| 0 | 500 return NULL; |
| 501 } | |
| 502 | |
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503 // Fill in default values for various flag fields |
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504 void nmethod::init_defaults() { |
| 13441 | 505 _state = in_use; |
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506 _marked_for_reclamation = 0; |
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507 _has_flushed_dependencies = 0; |
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508 _has_unsafe_access = 0; |
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509 _has_method_handle_invokes = 0; |
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510 _lazy_critical_native = 0; |
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511 _has_wide_vectors = 0; |
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512 _marked_for_deoptimization = 0; |
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513 _lock_count = 0; |
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514 _stack_traversal_mark = 0; |
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515 _unload_reported = false; // jvmti state |
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516 |
| 1726 | 517 #ifdef ASSERT |
| 518 _oops_are_stale = false; | |
| 519 #endif | |
| 520 | |
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521 _oops_do_mark_link = NULL; |
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522 _jmethod_id = NULL; |
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523 _osr_link = NULL; |
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524 _scavenge_root_link = NULL; |
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525 _scavenge_root_state = 0; |
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526 _compiler = NULL; |
| 9707 | 527 #ifdef GRAAL |
| 528 _graal_installed_code = NULL; | |
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529 _speculation_log = NULL; |
| 9707 | 530 #endif |
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531 #ifdef HAVE_DTRACE_H |
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532 _trap_offset = 0; |
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533 #endif // def HAVE_DTRACE_H |
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534 } |
| 0 | 535 |
| 536 nmethod* nmethod::new_native_nmethod(methodHandle method, | |
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537 int compile_id, |
| 0 | 538 CodeBuffer *code_buffer, |
| 539 int vep_offset, | |
| 540 int frame_complete, | |
| 541 int frame_size, | |
| 542 ByteSize basic_lock_owner_sp_offset, | |
| 543 ByteSize basic_lock_sp_offset, | |
| 544 OopMapSet* oop_maps) { | |
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545 code_buffer->finalize_oop_references(method); |
| 0 | 546 // create nmethod |
| 547 nmethod* nm = NULL; | |
| 548 { | |
| 549 MutexLockerEx mu(CodeCache_lock, Mutex::_no_safepoint_check_flag); | |
| 550 int native_nmethod_size = allocation_size(code_buffer, sizeof(nmethod)); | |
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551 CodeOffsets offsets; |
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552 offsets.set_value(CodeOffsets::Verified_Entry, vep_offset); |
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553 offsets.set_value(CodeOffsets::Frame_Complete, frame_complete); |
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554 nm = new (native_nmethod_size) nmethod(method(), native_nmethod_size, |
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555 compile_id, &offsets, |
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556 code_buffer, frame_size, |
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557 basic_lock_owner_sp_offset, |
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558 basic_lock_sp_offset, oop_maps); |
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559 if (nm != NULL) note_java_nmethod(nm); |
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560 if (PrintAssembly && nm != NULL) { |
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561 Disassembler::decode(nm); |
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562 } |
| 0 | 563 } |
| 564 // verify nmethod | |
| 565 debug_only(if (nm) nm->verify();) // might block | |
| 566 | |
| 567 if (nm != NULL) { | |
| 568 nm->log_new_nmethod(); | |
| 569 } | |
| 570 | |
| 571 return nm; | |
| 572 } | |
| 573 | |
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574 #ifdef HAVE_DTRACE_H |
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575 nmethod* nmethod::new_dtrace_nmethod(methodHandle method, |
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576 CodeBuffer *code_buffer, |
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577 int vep_offset, |
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578 int trap_offset, |
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579 int frame_complete, |
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580 int frame_size) { |
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581 code_buffer->finalize_oop_references(method); |
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582 // create nmethod |
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583 nmethod* nm = NULL; |
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584 { |
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585 MutexLockerEx mu(CodeCache_lock, Mutex::_no_safepoint_check_flag); |
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586 int nmethod_size = allocation_size(code_buffer, sizeof(nmethod)); |
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587 CodeOffsets offsets; |
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588 offsets.set_value(CodeOffsets::Verified_Entry, vep_offset); |
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589 offsets.set_value(CodeOffsets::Dtrace_trap, trap_offset); |
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590 offsets.set_value(CodeOffsets::Frame_Complete, frame_complete); |
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591 |
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592 nm = new (nmethod_size) nmethod(method(), nmethod_size, |
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593 &offsets, code_buffer, frame_size); |
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594 |
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595 if (nm != NULL) note_java_nmethod(nm); |
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596 if (PrintAssembly && nm != NULL) { |
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597 Disassembler::decode(nm); |
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598 } |
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599 } |
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600 // verify nmethod |
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601 debug_only(if (nm) nm->verify();) // might block |
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602 |
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603 if (nm != NULL) { |
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604 nm->log_new_nmethod(); |
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605 } |
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606 |
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607 return nm; |
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608 } |
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609 |
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610 #endif // def HAVE_DTRACE_H |
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611 |
| 0 | 612 nmethod* nmethod::new_nmethod(methodHandle method, |
| 613 int compile_id, | |
| 614 int entry_bci, | |
| 615 CodeOffsets* offsets, | |
| 616 int orig_pc_offset, | |
| 617 DebugInformationRecorder* debug_info, | |
| 618 Dependencies* dependencies, | |
| 619 CodeBuffer* code_buffer, int frame_size, | |
| 620 OopMapSet* oop_maps, | |
| 621 ExceptionHandlerTable* handler_table, | |
| 622 ImplicitExceptionTable* nul_chk_table, | |
| 623 AbstractCompiler* compiler, | |
| 624 int comp_level | |
| 9707 | 625 #ifdef GRAAL |
| 626 , Handle installed_code, | |
|
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627 Handle speculationLog |
| 9707 | 628 #endif |
| 0 | 629 ) |
| 630 { | |
| 631 assert(debug_info->oop_recorder() == code_buffer->oop_recorder(), "shared OR"); | |
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632 code_buffer->finalize_oop_references(method); |
| 0 | 633 // create nmethod |
| 634 nmethod* nm = NULL; | |
| 635 { MutexLockerEx mu(CodeCache_lock, Mutex::_no_safepoint_check_flag); | |
| 636 int nmethod_size = | |
| 637 allocation_size(code_buffer, sizeof(nmethod)) | |
| 638 + adjust_pcs_size(debug_info->pcs_size()) | |
| 639 + round_to(dependencies->size_in_bytes() , oopSize) | |
| 640 + round_to(handler_table->size_in_bytes(), oopSize) | |
| 641 + round_to(nul_chk_table->size_in_bytes(), oopSize) | |
| 642 + round_to(debug_info->data_size() , oopSize); | |
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643 nm = new (nmethod_size) |
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644 nmethod(method(), nmethod_size, compile_id, entry_bci, offsets, |
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645 orig_pc_offset, debug_info, dependencies, code_buffer, frame_size, |
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646 oop_maps, |
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647 handler_table, |
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648 nul_chk_table, |
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649 compiler, |
|
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650 comp_level |
| 9707 | 651 #ifdef GRAAL |
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652 , installed_code, |
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653 speculationLog |
| 9707 | 654 #endif |
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655 ); |
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656 |
| 0 | 657 if (nm != NULL) { |
| 658 // To make dependency checking during class loading fast, record | |
| 659 // the nmethod dependencies in the classes it is dependent on. | |
| 660 // This allows the dependency checking code to simply walk the | |
| 661 // class hierarchy above the loaded class, checking only nmethods | |
| 662 // which are dependent on those classes. The slow way is to | |
| 663 // check every nmethod for dependencies which makes it linear in | |
| 664 // the number of methods compiled. For applications with a lot | |
| 665 // classes the slow way is too slow. | |
| 666 for (Dependencies::DepStream deps(nm); deps.next(); ) { | |
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667 Klass* klass = deps.context_type(); |
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668 if (klass == NULL) { |
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669 continue; // ignore things like evol_method |
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670 } |
| 0 | 671 |
| 672 // record this nmethod as dependent on this klass | |
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673 InstanceKlass::cast(klass)->add_dependent_nmethod(nm); |
| 0 | 674 } |
|
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675 if (nm != NULL) note_java_nmethod(nm); |
| 14909 | 676 if (PrintAssembly) { |
|
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677 Disassembler::decode(nm); |
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678 } |
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679 } |
| 0 | 680 } |
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681 // Do verification and logging outside CodeCache_lock. |
| 0 | 682 if (nm != NULL) { |
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683 // Safepoints in nmethod::verify aren't allowed because nm hasn't been installed yet. |
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684 DEBUG_ONLY(nm->verify();) |
| 0 | 685 nm->log_new_nmethod(); |
| 686 } | |
| 687 return nm; | |
| 688 } | |
| 689 | |
| 690 | |
| 691 // For native wrappers | |
| 692 nmethod::nmethod( | |
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693 Method* method, |
| 0 | 694 int nmethod_size, |
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695 int compile_id, |
| 0 | 696 CodeOffsets* offsets, |
| 697 CodeBuffer* code_buffer, | |
| 698 int frame_size, | |
| 699 ByteSize basic_lock_owner_sp_offset, | |
| 700 ByteSize basic_lock_sp_offset, | |
| 701 OopMapSet* oop_maps ) | |
| 702 : CodeBlob("native nmethod", code_buffer, sizeof(nmethod), | |
| 703 nmethod_size, offsets->value(CodeOffsets::Frame_Complete), frame_size, oop_maps), | |
| 2019 | 704 _native_receiver_sp_offset(basic_lock_owner_sp_offset), |
| 705 _native_basic_lock_sp_offset(basic_lock_sp_offset) | |
| 0 | 706 { |
| 707 { | |
| 708 debug_only(No_Safepoint_Verifier nsv;) | |
| 709 assert_locked_or_safepoint(CodeCache_lock); | |
| 710 | |
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711 init_defaults(); |
| 0 | 712 _method = method; |
| 713 _entry_bci = InvocationEntryBci; | |
| 714 // We have no exception handler or deopt handler make the | |
| 715 // values something that will never match a pc like the nmethod vtable entry | |
| 716 _exception_offset = 0; | |
| 717 _deoptimize_offset = 0; | |
| 1204 | 718 _deoptimize_mh_offset = 0; |
| 0 | 719 _orig_pc_offset = 0; |
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720 |
| 1748 | 721 _consts_offset = data_offset(); |
| 0 | 722 _stub_offset = data_offset(); |
|
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723 _oops_offset = data_offset(); |
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724 _metadata_offset = _oops_offset + round_to(code_buffer->total_oop_size(), oopSize); |
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725 _scopes_data_offset = _metadata_offset + round_to(code_buffer->total_metadata_size(), wordSize); |
| 0 | 726 _scopes_pcs_offset = _scopes_data_offset; |
| 727 _dependencies_offset = _scopes_pcs_offset; | |
| 728 _handler_table_offset = _dependencies_offset; | |
| 729 _nul_chk_table_offset = _handler_table_offset; | |
| 730 _nmethod_end_offset = _nul_chk_table_offset; | |
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731 _compile_id = compile_id; |
| 0 | 732 _comp_level = CompLevel_none; |
| 1748 | 733 _entry_point = code_begin() + offsets->value(CodeOffsets::Entry); |
| 734 _verified_entry_point = code_begin() + offsets->value(CodeOffsets::Verified_Entry); | |
| 0 | 735 _osr_entry_point = NULL; |
| 736 _exception_cache = NULL; | |
| 737 _pc_desc_cache.reset_to(NULL); | |
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738 _hotness_counter = NMethodSweeper::hotness_counter_reset_val(); |
| 0 | 739 |
|
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740 code_buffer->copy_values_to(this); |
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741 if (ScavengeRootsInCode && detect_scavenge_root_oops()) { |
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742 CodeCache::add_scavenge_root_nmethod(this); |
| 12080 | 743 Universe::heap()->register_nmethod(this); |
|
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744 } |
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745 debug_only(verify_scavenge_root_oops()); |
| 0 | 746 CodeCache::commit(this); |
| 747 } | |
| 748 | |
| 749 if (PrintNativeNMethods || PrintDebugInfo || PrintRelocations || PrintDependencies) { | |
| 750 ttyLocker ttyl; // keep the following output all in one block | |
| 751 // This output goes directly to the tty, not the compiler log. | |
| 752 // To enable tools to match it up with the compilation activity, | |
| 753 // be sure to tag this tty output with the compile ID. | |
| 754 if (xtty != NULL) { | |
| 755 xtty->begin_head("print_native_nmethod"); | |
| 756 xtty->method(_method); | |
| 757 xtty->stamp(); | |
| 758 xtty->end_head(" address='" INTPTR_FORMAT "'", (intptr_t) this); | |
| 759 } | |
| 760 // print the header part first | |
| 761 print(); | |
| 762 // then print the requested information | |
| 763 if (PrintNativeNMethods) { | |
| 764 print_code(); | |
|
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765 if (oop_maps != NULL) { |
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766 oop_maps->print(); |
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767 } |
| 0 | 768 } |
| 769 if (PrintRelocations) { | |
| 770 print_relocations(); | |
| 771 } | |
| 772 if (xtty != NULL) { | |
| 773 xtty->tail("print_native_nmethod"); | |
| 774 } | |
| 775 } | |
| 776 } | |
| 777 | |
|
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778 // For dtrace wrappers |
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779 #ifdef HAVE_DTRACE_H |
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780 nmethod::nmethod( |
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781 Method* method, |
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782 int nmethod_size, |
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783 CodeOffsets* offsets, |
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784 CodeBuffer* code_buffer, |
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785 int frame_size) |
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786 : CodeBlob("dtrace nmethod", code_buffer, sizeof(nmethod), |
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787 nmethod_size, offsets->value(CodeOffsets::Frame_Complete), frame_size, NULL), |
| 2019 | 788 _native_receiver_sp_offset(in_ByteSize(-1)), |
| 789 _native_basic_lock_sp_offset(in_ByteSize(-1)) | |
|
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790 { |
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791 { |
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792 debug_only(No_Safepoint_Verifier nsv;) |
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793 assert_locked_or_safepoint(CodeCache_lock); |
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794 |
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795 init_defaults(); |
|
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796 _method = method; |
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797 _entry_bci = InvocationEntryBci; |
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798 // We have no exception handler or deopt handler make the |
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799 // values something that will never match a pc like the nmethod vtable entry |
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800 _exception_offset = 0; |
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801 _deoptimize_offset = 0; |
| 1204 | 802 _deoptimize_mh_offset = 0; |
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803 _unwind_handler_offset = -1; |
|
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804 _trap_offset = offsets->value(CodeOffsets::Dtrace_trap); |
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805 _orig_pc_offset = 0; |
| 1748 | 806 _consts_offset = data_offset(); |
|
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807 _stub_offset = data_offset(); |
|
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808 _oops_offset = data_offset(); |
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809 _metadata_offset = _oops_offset + round_to(code_buffer->total_oop_size(), oopSize); |
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810 _scopes_data_offset = _metadata_offset + round_to(code_buffer->total_metadata_size(), wordSize); |
|
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811 _scopes_pcs_offset = _scopes_data_offset; |
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812 _dependencies_offset = _scopes_pcs_offset; |
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813 _handler_table_offset = _dependencies_offset; |
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814 _nul_chk_table_offset = _handler_table_offset; |
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815 _nmethod_end_offset = _nul_chk_table_offset; |
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816 _compile_id = 0; // default |
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817 _comp_level = CompLevel_none; |
| 1748 | 818 _entry_point = code_begin() + offsets->value(CodeOffsets::Entry); |
| 819 _verified_entry_point = code_begin() + offsets->value(CodeOffsets::Verified_Entry); | |
|
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820 _osr_entry_point = NULL; |
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821 _exception_cache = NULL; |
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822 _pc_desc_cache.reset_to(NULL); |
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823 _hotness_counter = NMethodSweeper::hotness_counter_reset_val(); |
|
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824 |
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825 code_buffer->copy_values_to(this); |
|
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826 debug_only(verify_scavenge_root_oops()); |
|
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827 CodeCache::commit(this); |
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828 } |
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829 |
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830 if (PrintNMethods || PrintDebugInfo || PrintRelocations || PrintDependencies) { |
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831 ttyLocker ttyl; // keep the following output all in one block |
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832 // This output goes directly to the tty, not the compiler log. |
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833 // To enable tools to match it up with the compilation activity, |
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834 // be sure to tag this tty output with the compile ID. |
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835 if (xtty != NULL) { |
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836 xtty->begin_head("print_dtrace_nmethod"); |
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837 xtty->method(_method); |
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838 xtty->stamp(); |
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839 xtty->end_head(" address='" INTPTR_FORMAT "'", (intptr_t) this); |
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840 } |
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841 // print the header part first |
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842 print(); |
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843 // then print the requested information |
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844 if (PrintNMethods) { |
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845 print_code(); |
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846 } |
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847 if (PrintRelocations) { |
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848 print_relocations(); |
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849 } |
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850 if (xtty != NULL) { |
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851 xtty->tail("print_dtrace_nmethod"); |
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852 } |
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853 } |
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854 } |
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855 #endif // def HAVE_DTRACE_H |
| 0 | 856 |
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857 void* nmethod::operator new(size_t size, int nmethod_size) throw() { |
|
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858 // Not critical, may return null if there is too little continuous memory |
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859 return CodeCache::allocate(nmethod_size); |
| 0 | 860 } |
| 861 | |
| 862 nmethod::nmethod( | |
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863 Method* method, |
| 0 | 864 int nmethod_size, |
| 865 int compile_id, | |
| 866 int entry_bci, | |
| 867 CodeOffsets* offsets, | |
| 868 int orig_pc_offset, | |
| 869 DebugInformationRecorder* debug_info, | |
| 870 Dependencies* dependencies, | |
| 871 CodeBuffer *code_buffer, | |
| 872 int frame_size, | |
| 873 OopMapSet* oop_maps, | |
| 874 ExceptionHandlerTable* handler_table, | |
| 875 ImplicitExceptionTable* nul_chk_table, | |
| 876 AbstractCompiler* compiler, | |
| 877 int comp_level | |
| 9707 | 878 #ifdef GRAAL |
| 879 , Handle installed_code, | |
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880 Handle speculation_log |
| 9707 | 881 #endif |
| 0 | 882 ) |
| 883 : CodeBlob("nmethod", code_buffer, sizeof(nmethod), | |
| 884 nmethod_size, offsets->value(CodeOffsets::Frame_Complete), frame_size, oop_maps), | |
| 2019 | 885 _native_receiver_sp_offset(in_ByteSize(-1)), |
| 886 _native_basic_lock_sp_offset(in_ByteSize(-1)) | |
| 0 | 887 { |
| 888 assert(debug_info->oop_recorder() == code_buffer->oop_recorder(), "shared OR"); | |
| 889 { | |
| 890 debug_only(No_Safepoint_Verifier nsv;) | |
| 891 assert_locked_or_safepoint(CodeCache_lock); | |
| 892 | |
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893 init_defaults(); |
| 0 | 894 _method = method; |
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895 _entry_bci = entry_bci; |
| 0 | 896 _compile_id = compile_id; |
| 897 _comp_level = comp_level; | |
| 898 _compiler = compiler; | |
| 899 _orig_pc_offset = orig_pc_offset; | |
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900 _hotness_counter = NMethodSweeper::hotness_counter_reset_val(); |
| 1748 | 901 |
| 902 // Section offsets | |
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903 _consts_offset = content_offset() + code_buffer->total_offset_of(code_buffer->consts()); |
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904 _stub_offset = content_offset() + code_buffer->total_offset_of(code_buffer->stubs()); |
| 0 | 905 |
| 9707 | 906 #ifdef GRAAL |
| 907 _graal_installed_code = installed_code(); | |
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908 _speculation_log = (instanceOop)speculation_log(); |
| 9707 | 909 #endif |
| 910 if (compiler->is_graal()) { | |
| 911 // Graal might not produce any stub sections | |
| 912 if (offsets->value(CodeOffsets::Exceptions) != -1) { | |
| 913 _exception_offset = code_offset() + offsets->value(CodeOffsets::Exceptions); | |
| 914 } else { | |
| 915 _exception_offset = -1; | |
| 916 } | |
| 917 if (offsets->value(CodeOffsets::Deopt) != -1) { | |
| 918 _deoptimize_offset = code_offset() + offsets->value(CodeOffsets::Deopt); | |
| 919 } else { | |
| 920 _deoptimize_offset = -1; | |
| 921 } | |
| 922 if (offsets->value(CodeOffsets::DeoptMH) != -1) { | |
| 923 _deoptimize_mh_offset = code_offset() + offsets->value(CodeOffsets::DeoptMH); | |
| 924 } else { | |
| 925 _deoptimize_mh_offset = -1; | |
| 926 } | |
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927 } else { |
| 9707 | 928 // Exception handler and deopt handler are in the stub section |
| 929 assert(offsets->value(CodeOffsets::Exceptions) != -1, "must be set"); | |
| 930 assert(offsets->value(CodeOffsets::Deopt ) != -1, "must be set"); | |
| 931 | |
| 932 _exception_offset = _stub_offset + offsets->value(CodeOffsets::Exceptions); | |
| 933 _deoptimize_offset = _stub_offset + offsets->value(CodeOffsets::Deopt); | |
| 934 if (offsets->value(CodeOffsets::DeoptMH) != -1) { | |
| 935 _deoptimize_mh_offset = _stub_offset + offsets->value(CodeOffsets::DeoptMH); | |
| 936 } else { | |
| 937 _deoptimize_mh_offset = -1; | |
| 938 } | |
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939 } |
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940 if (offsets->value(CodeOffsets::UnwindHandler) != -1) { |
| 1748 | 941 _unwind_handler_offset = code_offset() + offsets->value(CodeOffsets::UnwindHandler); |
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942 } else { |
| 1748 | 943 _unwind_handler_offset = -1; |
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944 } |
| 1748 | 945 |
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946 _oops_offset = data_offset(); |
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947 _metadata_offset = _oops_offset + round_to(code_buffer->total_oop_size(), oopSize); |
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948 _scopes_data_offset = _metadata_offset + round_to(code_buffer->total_metadata_size(), wordSize); |
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949 |
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950 _scopes_pcs_offset = _scopes_data_offset + round_to(debug_info->data_size (), oopSize); |
| 0 | 951 _dependencies_offset = _scopes_pcs_offset + adjust_pcs_size(debug_info->pcs_size()); |
| 952 _handler_table_offset = _dependencies_offset + round_to(dependencies->size_in_bytes (), oopSize); | |
| 953 _nul_chk_table_offset = _handler_table_offset + round_to(handler_table->size_in_bytes(), oopSize); | |
| 954 _nmethod_end_offset = _nul_chk_table_offset + round_to(nul_chk_table->size_in_bytes(), oopSize); | |
| 955 | |
| 1748 | 956 _entry_point = code_begin() + offsets->value(CodeOffsets::Entry); |
| 957 _verified_entry_point = code_begin() + offsets->value(CodeOffsets::Verified_Entry); | |
| 958 _osr_entry_point = code_begin() + offsets->value(CodeOffsets::OSR_Entry); | |
| 0 | 959 _exception_cache = NULL; |
| 960 _pc_desc_cache.reset_to(scopes_pcs_begin()); | |
| 961 | |
| 962 // Copy contents of ScopeDescRecorder to nmethod | |
|
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963 code_buffer->copy_values_to(this); |
| 0 | 964 debug_info->copy_to(this); |
| 965 dependencies->copy_to(this); | |
|
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966 if (ScavengeRootsInCode && detect_scavenge_root_oops()) { |
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967 CodeCache::add_scavenge_root_nmethod(this); |
| 12080 | 968 Universe::heap()->register_nmethod(this); |
|
989
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969 } |
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970 debug_only(verify_scavenge_root_oops()); |
| 0 | 971 |
| 972 CodeCache::commit(this); | |
| 973 | |
| 974 // Copy contents of ExceptionHandlerTable to nmethod | |
| 975 handler_table->copy_to(this); | |
| 976 nul_chk_table->copy_to(this); | |
| 977 | |
| 978 // we use the information of entry points to find out if a method is | |
| 979 // static or non static | |
|
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980 assert(compiler->is_c2() || compiler->is_graal() || |
| 0 | 981 _method->is_static() == (entry_point() == _verified_entry_point), |
| 982 " entry points must be same for static methods and vice versa"); | |
| 983 } | |
| 984 | |
|
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985 bool printnmethods = PrintNMethods |
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986 || CompilerOracle::should_print(_method) |
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987 || CompilerOracle::has_option_string(_method, "PrintNMethods"); |
| 0 | 988 if (printnmethods || PrintDebugInfo || PrintRelocations || PrintDependencies || PrintExceptionHandlers) { |
| 989 print_nmethod(printnmethods); | |
| 990 } | |
| 991 } | |
| 992 | |
| 993 | |
| 994 // Print a short set of xml attributes to identify this nmethod. The | |
| 995 // output should be embedded in some other element. | |
| 996 void nmethod::log_identity(xmlStream* log) const { | |
| 997 log->print(" compile_id='%d'", compile_id()); | |
| 998 const char* nm_kind = compile_kind(); | |
| 999 if (nm_kind != NULL) log->print(" compile_kind='%s'", nm_kind); | |
| 1000 if (compiler() != NULL) { | |
| 1001 log->print(" compiler='%s'", compiler()->name()); | |
| 1002 } | |
| 1783 | 1003 if (TieredCompilation) { |
| 1004 log->print(" level='%d'", comp_level()); | |
| 1005 } | |
| 0 | 1006 } |
| 1007 | |
| 1008 | |
| 1009 #define LOG_OFFSET(log, name) \ | |
| 1010 if ((intptr_t)name##_end() - (intptr_t)name##_begin()) \ | |
| 1011 log->print(" " XSTR(name) "_offset='%d'" , \ | |
| 1012 (intptr_t)name##_begin() - (intptr_t)this) | |
| 1013 | |
| 1014 | |
| 1015 void nmethod::log_new_nmethod() const { | |
| 1016 if (LogCompilation && xtty != NULL) { | |
| 1017 ttyLocker ttyl; | |
| 1018 HandleMark hm; | |
| 1019 xtty->begin_elem("nmethod"); | |
| 1020 log_identity(xtty); | |
| 1748 | 1021 xtty->print(" entry='" INTPTR_FORMAT "' size='%d'", code_begin(), size()); |
| 0 | 1022 xtty->print(" address='" INTPTR_FORMAT "'", (intptr_t) this); |
| 1023 | |
| 1024 LOG_OFFSET(xtty, relocation); | |
|
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1025 LOG_OFFSET(xtty, consts); |
| 1748 | 1026 LOG_OFFSET(xtty, insts); |
| 0 | 1027 LOG_OFFSET(xtty, stub); |
| 1028 LOG_OFFSET(xtty, scopes_data); | |
| 1029 LOG_OFFSET(xtty, scopes_pcs); | |
| 1030 LOG_OFFSET(xtty, dependencies); | |
| 1031 LOG_OFFSET(xtty, handler_table); | |
| 1032 LOG_OFFSET(xtty, nul_chk_table); | |
| 1033 LOG_OFFSET(xtty, oops); | |
| 1034 | |
| 1035 xtty->method(method()); | |
| 1036 xtty->stamp(); | |
| 1037 xtty->end_elem(); | |
| 1038 } | |
| 1039 } | |
| 1040 | |
| 1041 #undef LOG_OFFSET | |
| 1042 | |
| 1043 | |
| 1044 // Print out more verbose output usually for a newly created nmethod. | |
|
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1045 void nmethod::print_on(outputStream* st, const char* msg) const { |
| 0 | 1046 if (st != NULL) { |
| 1047 ttyLocker ttyl; | |
|
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1048 if (CIPrintCompilerName) st->print("%s:", compiler()->name()); |
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1049 if (WizardMode) { |
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1050 CompileTask::print_compilation(st, this, msg, /*short_form:*/ true); |
|
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1051 st->print_cr(" (" INTPTR_FORMAT ")", this); |
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1052 } else { |
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1053 CompileTask::print_compilation(st, this, msg, /*short_form:*/ false); |
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1054 } |
| 0 | 1055 } |
| 1056 } | |
| 1057 | |
| 1058 | |
| 1059 void nmethod::print_nmethod(bool printmethod) { | |
| 1060 ttyLocker ttyl; // keep the following output all in one block | |
| 1061 if (xtty != NULL) { | |
| 1062 xtty->begin_head("print_nmethod"); | |
| 1063 xtty->stamp(); | |
| 1064 xtty->end_head(); | |
| 1065 } | |
| 1066 // print the header part first | |
| 1067 print(); | |
| 1068 // then print the requested information | |
| 1069 if (printmethod) { | |
| 1070 print_code(); | |
| 1071 print_pcs(); | |
|
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1072 if (oop_maps()) { |
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1073 oop_maps()->print(); |
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1074 } |
| 0 | 1075 } |
| 1076 if (PrintDebugInfo) { | |
| 1077 print_scopes(); | |
| 1078 } | |
| 1079 if (PrintRelocations) { | |
| 1080 print_relocations(); | |
| 1081 } | |
| 1082 if (PrintDependencies) { | |
| 1083 print_dependencies(); | |
| 1084 } | |
| 1085 if (PrintExceptionHandlers) { | |
| 1086 print_handler_table(); | |
| 1087 print_nul_chk_table(); | |
| 1088 } | |
| 1089 if (xtty != NULL) { | |
| 1090 xtty->tail("print_nmethod"); | |
| 1091 } | |
| 1092 } | |
| 1093 | |
| 1094 | |
|
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1095 // Promote one word from an assembly-time handle to a live embedded oop. |
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1096 inline void nmethod::initialize_immediate_oop(oop* dest, jobject handle) { |
|
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1097 if (handle == NULL || |
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1098 // As a special case, IC oops are initialized to 1 or -1. |
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1099 handle == (jobject) Universe::non_oop_word()) { |
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1100 (*dest) = (oop) handle; |
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1101 } else { |
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1102 (*dest) = JNIHandles::resolve_non_null(handle); |
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1103 } |
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1104 } |
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1105 |
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1106 |
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1107 // Have to have the same name because it's called by a template |
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1108 void nmethod::copy_values(GrowableArray<jobject>* array) { |
|
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1109 int length = array->length(); |
|
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1110 assert((address)(oops_begin() + length) <= (address)oops_end(), "oops big enough"); |
|
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1111 oop* dest = oops_begin(); |
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1112 for (int index = 0 ; index < length; index++) { |
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1113 initialize_immediate_oop(&dest[index], array->at(index)); |
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1114 } |
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1115 |
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1116 // Now we can fix up all the oops in the code. We need to do this |
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1117 // in the code because the assembler uses jobjects as placeholders. |
|
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1118 // The code and relocations have already been initialized by the |
|
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1119 // CodeBlob constructor, so it is valid even at this early point to |
|
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1120 // iterate over relocations and patch the code. |
|
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1121 fix_oop_relocations(NULL, NULL, /*initialize_immediates=*/ true); |
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1122 } |
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1123 |
|
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1124 void nmethod::copy_values(GrowableArray<Metadata*>* array) { |
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1125 int length = array->length(); |
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1126 assert((address)(metadata_begin() + length) <= (address)metadata_end(), "big enough"); |
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1127 Metadata** dest = metadata_begin(); |
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1128 for (int index = 0 ; index < length; index++) { |
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1129 dest[index] = array->at(index); |
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1130 } |
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1131 } |
|
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1132 |
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1133 bool nmethod::is_at_poll_return(address pc) { |
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1134 RelocIterator iter(this, pc, pc+1); |
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1135 while (iter.next()) { |
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1136 if (iter.type() == relocInfo::poll_return_type) |
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1137 return true; |
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1138 } |
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1139 return false; |
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1140 } |
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1141 |
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1142 |
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1143 bool nmethod::is_at_poll_or_poll_return(address pc) { |
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1144 RelocIterator iter(this, pc, pc+1); |
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1145 while (iter.next()) { |
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1146 relocInfo::relocType t = iter.type(); |
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1147 if (t == relocInfo::poll_return_type || t == relocInfo::poll_type) |
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1148 return true; |
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1149 } |
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1150 return false; |
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1151 } |
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1152 |
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1153 |
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1154 void nmethod::fix_oop_relocations(address begin, address end, bool initialize_immediates) { |
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1155 // re-patch all oop-bearing instructions, just in case some oops moved |
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1156 RelocIterator iter(this, begin, end); |
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1157 while (iter.next()) { |
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1158 if (iter.type() == relocInfo::oop_type) { |
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1159 oop_Relocation* reloc = iter.oop_reloc(); |
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1160 if (initialize_immediates && reloc->oop_is_immediate()) { |
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1161 oop* dest = reloc->oop_addr(); |
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1162 initialize_immediate_oop(dest, (jobject) *dest); |
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|
1163 } |
|
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6951083: oops and relocations should part of nmethod not CodeBlob
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|
1164 // Refresh the oop-related bits of this instruction. |
|
1a5913bf5e19
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|
1165 reloc->fix_oop_relocation(); |
|
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|
1166 } else if (iter.type() == relocInfo::metadata_type) { |
|
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1167 metadata_Relocation* reloc = iter.metadata_reloc(); |
|
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1168 reloc->fix_metadata_relocation(); |
|
1563
1a5913bf5e19
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|
1169 } |
|
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|
1170 } |
|
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|
1171 } |
|
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|
1172 |
|
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|
1173 |
|
2375
d673ef06fe96
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diff
changeset
|
1174 void nmethod::verify_oop_relocations() { |
|
d673ef06fe96
7028374: race in fix_oop_relocations for scavengeable nmethods
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|
1175 // Ensure sure that the code matches the current oop values |
|
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|
1176 RelocIterator iter(this, NULL, NULL); |
|
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|
1177 while (iter.next()) { |
|
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|
1178 if (iter.type() == relocInfo::oop_type) { |
|
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changeset
|
1179 oop_Relocation* reloc = iter.oop_reloc(); |
|
d673ef06fe96
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changeset
|
1180 if (!reloc->oop_is_immediate()) { |
|
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7028374: race in fix_oop_relocations for scavengeable nmethods
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changeset
|
1181 reloc->verify_oop_relocation(); |
|
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changeset
|
1182 } |
|
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|
1183 } |
|
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|
1184 } |
|
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|
1185 } |
|
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changeset
|
1186 |
|
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7028374: race in fix_oop_relocations for scavengeable nmethods
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changeset
|
1187 |
| 0 | 1188 ScopeDesc* nmethod::scope_desc_at(address pc) { |
| 1189 PcDesc* pd = pc_desc_at(pc); | |
| 1190 guarantee(pd != NULL, "scope must be present"); | |
| 1191 return new ScopeDesc(this, pd->scope_decode_offset(), | |
| 9707 | 1192 pd->obj_decode_offset(), pd->should_reexecute(), pd->rethrow_exception(), |
|
1253
f70b0d9ab095
6910618: C2: Error: assert(d->is_oop(),"JVM_ArrayCopy: dst not an oop")
kvn
parents:
1250
diff
changeset
|
1193 pd->return_oop()); |
| 0 | 1194 } |
| 1195 | |
| 1196 | |
| 1197 void nmethod::clear_inline_caches() { | |
| 1198 assert(SafepointSynchronize::is_at_safepoint(), "cleaning of IC's only allowed at safepoint"); | |
| 1199 if (is_zombie()) { | |
| 1200 return; | |
| 1201 } | |
| 1202 | |
| 1203 RelocIterator iter(this); | |
| 1204 while (iter.next()) { | |
| 1205 iter.reloc()->clear_inline_cache(); | |
| 1206 } | |
| 1207 } | |
| 1208 | |
| 1209 | |
| 1210 void nmethod::cleanup_inline_caches() { | |
| 1211 | |
|
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bfe29ec02863
6950075: nmethod sweeper should operate concurrently
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parents:
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|
1212 assert_locked_or_safepoint(CompiledIC_lock); |
| 0 | 1213 |
| 1214 // If the method is not entrant or zombie then a JMP is plastered over the | |
| 1215 // first few bytes. If an oop in the old code was there, that oop | |
| 1216 // should not get GC'd. Skip the first few bytes of oops on | |
| 1217 // not-entrant methods. | |
| 1218 address low_boundary = verified_entry_point(); | |
| 1219 if (!is_in_use()) { | |
| 1220 low_boundary += NativeJump::instruction_size; | |
| 1221 // %%% Note: On SPARC we patch only a 4-byte trap, not a full NativeJump. | |
| 1222 // This means that the low_boundary is going to be a little too high. | |
| 1223 // This shouldn't matter, since oops of non-entrant methods are never used. | |
| 1224 // In fact, why are we bothering to look at oops in a non-entrant method?? | |
| 1225 } | |
| 1226 | |
| 1227 // Find all calls in an nmethod, and clear the ones that points to zombie methods | |
| 1228 ResourceMark rm; | |
| 1229 RelocIterator iter(this, low_boundary); | |
| 1230 while(iter.next()) { | |
| 1231 switch(iter.type()) { | |
| 1232 case relocInfo::virtual_call_type: | |
| 1233 case relocInfo::opt_virtual_call_type: { | |
| 1234 CompiledIC *ic = CompiledIC_at(iter.reloc()); | |
| 1235 // Ok, to lookup references to zombies here | |
| 1236 CodeBlob *cb = CodeCache::find_blob_unsafe(ic->ic_destination()); | |
| 1237 if( cb != NULL && cb->is_nmethod() ) { | |
| 1238 nmethod* nm = (nmethod*)cb; | |
| 1239 // Clean inline caches pointing to both zombie and not_entrant methods | |
| 1202 | 1240 if (!nm->is_in_use() || (nm->method()->code() != nm)) ic->set_to_clean(); |
| 0 | 1241 } |
| 1242 break; | |
| 1243 } | |
| 1244 case relocInfo::static_call_type: { | |
| 1245 CompiledStaticCall *csc = compiledStaticCall_at(iter.reloc()); | |
| 1246 CodeBlob *cb = CodeCache::find_blob_unsafe(csc->destination()); | |
| 1247 if( cb != NULL && cb->is_nmethod() ) { | |
| 1248 nmethod* nm = (nmethod*)cb; | |
| 1249 // Clean inline caches pointing to both zombie and not_entrant methods | |
| 1202 | 1250 if (!nm->is_in_use() || (nm->method()->code() != nm)) csc->set_to_clean(); |
| 0 | 1251 } |
| 1252 break; | |
| 1253 } | |
| 1254 } | |
| 1255 } | |
| 1256 } | |
| 1257 | |
|
989
148e5441d916
6863023: need non-perm oops in code cache for JSR 292
jrose
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diff
changeset
|
1258 // This is a private interface with the sweeper. |
| 0 | 1259 void nmethod::mark_as_seen_on_stack() { |
|
12324
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8020151: PSR:PERF Large performance regressions when code cache is filled
anoll
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changeset
|
1260 assert(is_alive(), "Must be an alive method"); |
|
1644
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|
1261 // Set the traversal mark to ensure that the sweeper does 2 |
|
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changeset
|
1262 // cleaning passes before moving to zombie. |
| 0 | 1263 set_stack_traversal_mark(NMethodSweeper::traversal_count()); |
| 1264 } | |
| 1265 | |
|
2342
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dcubed
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changeset
|
1266 // Tell if a non-entrant method can be converted to a zombie (i.e., |
|
46a56fac55c7
7024970: 2/3 assert(ServiceThread::is_service_thread(Thread::current())) failed: Service thread must post enqueue
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changeset
|
1267 // there are no activations on the stack, not in use by the VM, |
|
46a56fac55c7
7024970: 2/3 assert(ServiceThread::is_service_thread(Thread::current())) failed: Service thread must post enqueue
dcubed
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changeset
|
1268 // and not in use by the ServiceThread) |
| 0 | 1269 bool nmethod::can_not_entrant_be_converted() { |
| 1270 assert(is_not_entrant(), "must be a non-entrant method"); | |
| 1271 | |
| 1272 // Since the nmethod sweeper only does partial sweep the sweeper's traversal | |
| 1273 // count can be greater than the stack traversal count before it hits the | |
| 1274 // nmethod for the second time. | |
|
2342
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7024970: 2/3 assert(ServiceThread::is_service_thread(Thread::current())) failed: Service thread must post enqueue
dcubed
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|
1275 return stack_traversal_mark()+1 < NMethodSweeper::traversal_count() && |
|
46a56fac55c7
7024970: 2/3 assert(ServiceThread::is_service_thread(Thread::current())) failed: Service thread must post enqueue
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parents:
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changeset
|
1276 !is_locked_by_vm(); |
| 0 | 1277 } |
| 1278 | |
| 1279 void nmethod::inc_decompile_count() { | |
| 9707 | 1280 if (!is_compiled_by_c2() && !is_compiled_by_graal()) return; |
| 0 | 1281 // Could be gated by ProfileTraps, but do not bother... |
|
6725
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coleenp
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diff
changeset
|
1282 Method* m = method(); |
| 0 | 1283 if (m == NULL) return; |
|
6725
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6964458: Reimplement class meta-data storage to use native memory
coleenp
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changeset
|
1284 MethodData* mdo = m->method_data(); |
| 0 | 1285 if (mdo == NULL) return; |
|
6725
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coleenp
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diff
changeset
|
1286 // There is a benign race here. See comments in methodData.hpp. |
| 0 | 1287 mdo->inc_decompile_count(); |
| 1288 } | |
| 1289 | |
| 1290 void nmethod::make_unloaded(BoolObjectClosure* is_alive, oop cause) { | |
| 1291 | |
| 1292 post_compiled_method_unload(); | |
| 1293 | |
| 1294 // Since this nmethod is being unloaded, make sure that dependencies | |
| 1295 // recorded in instanceKlasses get flushed and pass non-NULL closure to | |
| 1296 // indicate that this work is being done during a GC. | |
| 1297 assert(Universe::heap()->is_gc_active(), "should only be called during gc"); | |
| 1298 assert(is_alive != NULL, "Should be non-NULL"); | |
| 1299 // A non-NULL is_alive closure indicates that this is being called during GC. | |
| 1300 flush_dependencies(is_alive); | |
| 1301 | |
| 1302 // Break cycle between nmethod & method | |
| 1303 if (TraceClassUnloading && WizardMode) { | |
| 1304 tty->print_cr("[Class unloading: Making nmethod " INTPTR_FORMAT | |
|
6725
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diff
changeset
|
1305 " unloadable], Method*(" INTPTR_FORMAT |
| 0 | 1306 "), cause(" INTPTR_FORMAT ")", |
| 1307 this, (address)_method, (address)cause); | |
|
989
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6863023: need non-perm oops in code cache for JSR 292
jrose
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changeset
|
1308 if (!Universe::heap()->is_gc_active()) |
|
148e5441d916
6863023: need non-perm oops in code cache for JSR 292
jrose
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diff
changeset
|
1309 cause->klass()->print(); |
| 0 | 1310 } |
| 941 | 1311 // Unlink the osr method, so we do not look this up again |
| 1312 if (is_osr_method()) { | |
| 1313 invalidate_osr_method(); | |
| 1314 } | |
|
6725
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6964458: Reimplement class meta-data storage to use native memory
coleenp
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diff
changeset
|
1315 // If _method is already NULL the Method* is about to be unloaded, |
| 0 | 1316 // so we don't have to break the cycle. Note that it is possible to |
|
6725
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6266
diff
changeset
|
1317 // have the Method* live here, in case we unload the nmethod because |
|
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
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6266
diff
changeset
|
1318 // it is pointing to some oop (other than the Method*) being unloaded. |
| 0 | 1319 if (_method != NULL) { |
|
6725
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6964458: Reimplement class meta-data storage to use native memory
coleenp
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changeset
|
1320 // OSR methods point to the Method*, but the Method* does not |
| 0 | 1321 // point back! |
| 1322 if (_method->code() == this) { | |
| 1323 _method->clear_code(); // Break a cycle | |
| 1324 } | |
| 1325 _method = NULL; // Clear the method of this dead nmethod | |
| 1326 } | |
| 9707 | 1327 |
| 1328 #ifdef GRAAL | |
| 1329 // The method can only be unloaded after the pointer to the installed code | |
| 1330 // Java wrapper is no longer alive. Here we need to clear out this weak | |
| 1331 // reference to the dead object. | |
| 1332 if (_graal_installed_code != NULL) { | |
|
10560
0b1b5356b566
Fixed issues around execute compiled code stub. Made TraceDeoptimization a product flag.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
10475
diff
changeset
|
1333 HotSpotInstalledCode::set_codeBlob(_graal_installed_code, 0); |
| 9707 | 1334 _graal_installed_code = NULL; |
| 1335 } | |
| 1336 #endif | |
| 1337 | |
| 0 | 1338 // Make the class unloaded - i.e., change state and notify sweeper |
|
1538
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6950075: nmethod sweeper should operate concurrently
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parents:
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diff
changeset
|
1339 assert(SafepointSynchronize::is_at_safepoint(), "must be at safepoint"); |
| 0 | 1340 if (is_in_use()) { |
| 1341 // Transitioning directly from live to unloaded -- so | |
| 1342 // we need to force a cache clean-up; remember this | |
| 1343 // for later on. | |
| 1344 CodeCache::set_needs_cache_clean(true); | |
| 1345 } | |
|
1644
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parents:
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changeset
|
1346 _state = unloaded; |
| 0 | 1347 |
|
1109
032260830071
5057818: codecache full and compiler disabled in bigapps fastdebug run
never
parents:
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diff
changeset
|
1348 // Log the unloading. |
|
032260830071
5057818: codecache full and compiler disabled in bigapps fastdebug run
never
parents:
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diff
changeset
|
1349 log_state_change(); |
|
032260830071
5057818: codecache full and compiler disabled in bigapps fastdebug run
never
parents:
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diff
changeset
|
1350 |
|
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coleenp
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changeset
|
1351 // The Method* is gone at this point |
| 0 | 1352 assert(_method == NULL, "Tautology"); |
| 1353 | |
|
989
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6863023: need non-perm oops in code cache for JSR 292
jrose
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changeset
|
1354 set_osr_link(NULL); |
|
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6863023: need non-perm oops in code cache for JSR 292
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changeset
|
1355 //set_scavenge_root_link(NULL); // done by prune_scavenge_root_nmethods |
|
13074
78da3894b86f
8027593: performance drop with constrained codecache starting with hs25 b111
anoll
parents:
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diff
changeset
|
1356 NMethodSweeper::report_state_change(this); |
| 0 | 1357 } |
| 1358 | |
| 1359 void nmethod::invalidate_osr_method() { | |
| 1360 assert(_entry_bci != InvocationEntryBci, "wrong kind of nmethod"); | |
| 1361 // Remove from list of active nmethods | |
| 1362 if (method() != NULL) | |
|
6940
18fb7da42534
8000725: NPG: method_holder() and pool_holder() and pool_holder field should be InstanceKlass
coleenp
parents:
6806
diff
changeset
|
1363 method()->method_holder()->remove_osr_nmethod(this); |
| 0 | 1364 // Set entry as invalid |
| 1365 _entry_bci = InvalidOSREntryBci; | |
| 1366 } | |
| 1367 | |
|
1109
032260830071
5057818: codecache full and compiler disabled in bigapps fastdebug run
never
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994
diff
changeset
|
1368 void nmethod::log_state_change() const { |
| 0 | 1369 if (LogCompilation) { |
| 1370 if (xtty != NULL) { | |
| 1371 ttyLocker ttyl; // keep the following output all in one block | |
|
1644
2a47bd84841f
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changeset
|
1372 if (_state == unloaded) { |
|
1109
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never
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changeset
|
1373 xtty->begin_elem("make_unloaded thread='" UINTX_FORMAT "'", |
|
032260830071
5057818: codecache full and compiler disabled in bigapps fastdebug run
never
parents:
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diff
changeset
|
1374 os::current_thread_id()); |
|
032260830071
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parents:
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changeset
|
1375 } else { |
|
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changeset
|
1376 xtty->begin_elem("make_not_entrant thread='" UINTX_FORMAT "'%s", |
|
032260830071
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changeset
|
1377 os::current_thread_id(), |
|
1644
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6965184: possible races in make_not_entrant_or_zombie
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changeset
|
1378 (_state == zombie ? " zombie='1'" : "")); |
|
1109
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changeset
|
1379 } |
| 0 | 1380 log_identity(xtty); |
| 1381 xtty->stamp(); | |
| 1382 xtty->end_elem(); | |
| 1383 } | |
| 1384 } | |
|
1644
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changeset
|
1385 if (PrintCompilation && _state != unloaded) { |
|
2405
3d58a4983660
7022998: JSR 292 recursive method handle calls inline themselves infinitely
twisti
parents:
2376
diff
changeset
|
1386 print_on(tty, _state == zombie ? "made zombie" : "made not entrant"); |
| 0 | 1387 } |
| 1388 } | |
| 1389 | |
|
13074
78da3894b86f
8027593: performance drop with constrained codecache starting with hs25 b111
anoll
parents:
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diff
changeset
|
1390 /** |
|
78da3894b86f
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anoll
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diff
changeset
|
1391 * Common functionality for both make_not_entrant and make_zombie |
|
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13071
diff
changeset
|
1392 */ |
| 1141 | 1393 bool nmethod::make_not_entrant_or_zombie(unsigned int state) { |
| 0 | 1394 assert(state == zombie || state == not_entrant, "must be zombie or not_entrant"); |
|
2342
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changeset
|
1395 assert(!is_zombie(), "should not already be a zombie"); |
| 0 | 1396 |
|
1644
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changeset
|
1397 // Make sure neither the nmethod nor the method is flushed in case of a safepoint in code below. |
| 0 | 1398 nmethodLocker nml(this); |
|
1644
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changeset
|
1399 methodHandle the_method(method()); |
| 1726 | 1400 No_Safepoint_Verifier nsv; |
| 0 | 1401 |
| 12080 | 1402 // during patching, depending on the nmethod state we must notify the GC that |
| 1403 // code has been unloaded, unregistering it. We cannot do this right while | |
| 1404 // holding the Patching_lock because we need to use the CodeCache_lock. This | |
| 1405 // would be prone to deadlocks. | |
| 1406 // This flag is used to remember whether we need to later lock and unregister. | |
| 1407 bool nmethod_needs_unregister = false; | |
| 1408 | |
| 0 | 1409 { |
|
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changeset
|
1410 // invalidate osr nmethod before acquiring the patching lock since |
|
032260830071
5057818: codecache full and compiler disabled in bigapps fastdebug run
never
parents:
994
diff
changeset
|
1411 // they both acquire leaf locks and we don't want a deadlock. |
|
032260830071
5057818: codecache full and compiler disabled in bigapps fastdebug run
never
parents:
994
diff
changeset
|
1412 // This logic is equivalent to the logic below for patching the |
|
032260830071
5057818: codecache full and compiler disabled in bigapps fastdebug run
never
parents:
994
diff
changeset
|
1413 // verified entry point of regular methods. |
|
032260830071
5057818: codecache full and compiler disabled in bigapps fastdebug run
never
parents:
994
diff
changeset
|
1414 if (is_osr_method()) { |
|
032260830071
5057818: codecache full and compiler disabled in bigapps fastdebug run
never
parents:
994
diff
changeset
|
1415 // this effectively makes the osr nmethod not entrant |
|
032260830071
5057818: codecache full and compiler disabled in bigapps fastdebug run
never
parents:
994
diff
changeset
|
1416 invalidate_osr_method(); |
|
032260830071
5057818: codecache full and compiler disabled in bigapps fastdebug run
never
parents:
994
diff
changeset
|
1417 } |
|
032260830071
5057818: codecache full and compiler disabled in bigapps fastdebug run
never
parents:
994
diff
changeset
|
1418 |
| 0 | 1419 // Enter critical section. Does not block for safepoint. |
| 1420 MutexLockerEx pl(Patching_lock, Mutex::_no_safepoint_check_flag); | |
|
1109
032260830071
5057818: codecache full and compiler disabled in bigapps fastdebug run
never
parents:
994
diff
changeset
|
1421 |
|
1644
2a47bd84841f
6965184: possible races in make_not_entrant_or_zombie
never
parents:
1616
diff
changeset
|
1422 if (_state == state) { |
|
1109
032260830071
5057818: codecache full and compiler disabled in bigapps fastdebug run
never
parents:
994
diff
changeset
|
1423 // another thread already performed this transition so nothing |
|
032260830071
5057818: codecache full and compiler disabled in bigapps fastdebug run
never
parents:
994
diff
changeset
|
1424 // to do, but return false to indicate this. |
|
032260830071
5057818: codecache full and compiler disabled in bigapps fastdebug run
never
parents:
994
diff
changeset
|
1425 return false; |
|
032260830071
5057818: codecache full and compiler disabled in bigapps fastdebug run
never
parents:
994
diff
changeset
|
1426 } |
|
032260830071
5057818: codecache full and compiler disabled in bigapps fastdebug run
never
parents:
994
diff
changeset
|
1427 |
| 0 | 1428 // The caller can be calling the method statically or through an inline |
| 1429 // cache call. | |
|
1109
032260830071
5057818: codecache full and compiler disabled in bigapps fastdebug run
never
parents:
994
diff
changeset
|
1430 if (!is_osr_method() && !is_not_entrant()) { |
| 9707 | 1431 address stub = SharedRuntime::get_handle_wrong_method_stub(); |
| 1432 NativeJump::patch_verified_entry(entry_point(), verified_entry_point(), stub); | |
| 0 | 1433 } |
| 1434 | |
|
1644
2a47bd84841f
6965184: possible races in make_not_entrant_or_zombie
never
parents:
1616
diff
changeset
|
1435 if (is_in_use()) { |
|
2a47bd84841f
6965184: possible races in make_not_entrant_or_zombie
never
parents:
1616
diff
changeset
|
1436 // It's a true state change, so mark the method as decompiled. |
|
2a47bd84841f
6965184: possible races in make_not_entrant_or_zombie
never
parents:
1616
diff
changeset
|
1437 // Do it only for transition from alive. |
|
2a47bd84841f
6965184: possible races in make_not_entrant_or_zombie
never
parents:
1616
diff
changeset
|
1438 inc_decompile_count(); |
|
2a47bd84841f
6965184: possible races in make_not_entrant_or_zombie
never
parents:
1616
diff
changeset
|
1439 } |
|
1206
87684f1a88b5
6614597: Performance variability in jvm2008 xml.validation
kvn
parents:
1204
diff
changeset
|
1440 |
| 12080 | 1441 // If the state is becoming a zombie, signal to unregister the nmethod with |
| 1442 // the heap. | |
| 1443 // This nmethod may have already been unloaded during a full GC. | |
| 1444 if ((state == zombie) && !is_unloaded()) { | |
| 1445 nmethod_needs_unregister = true; | |
| 1446 } | |
| 1447 | |
|
12324
510fbd28919c
8020151: PSR:PERF Large performance regressions when code cache is filled
anoll
parents:
12175
diff
changeset
|
1448 // Must happen before state change. Otherwise we have a race condition in |
|
510fbd28919c
8020151: PSR:PERF Large performance regressions when code cache is filled
anoll
parents:
12175
diff
changeset
|
1449 // nmethod::can_not_entrant_be_converted(). I.e., a method can immediately |
|
510fbd28919c
8020151: PSR:PERF Large performance regressions when code cache is filled
anoll
parents:
12175
diff
changeset
|
1450 // transition its state from 'not_entrant' to 'zombie' without having to wait |
|
510fbd28919c
8020151: PSR:PERF Large performance regressions when code cache is filled
anoll
parents:
12175
diff
changeset
|
1451 // for stack scanning. |
|
510fbd28919c
8020151: PSR:PERF Large performance regressions when code cache is filled
anoll
parents:
12175
diff
changeset
|
1452 if (state == not_entrant) { |
|
510fbd28919c
8020151: PSR:PERF Large performance regressions when code cache is filled
anoll
parents:
12175
diff
changeset
|
1453 mark_as_seen_on_stack(); |
|
510fbd28919c
8020151: PSR:PERF Large performance regressions when code cache is filled
anoll
parents:
12175
diff
changeset
|
1454 OrderAccess::storestore(); |
|
510fbd28919c
8020151: PSR:PERF Large performance regressions when code cache is filled
anoll
parents:
12175
diff
changeset
|
1455 } |
|
510fbd28919c
8020151: PSR:PERF Large performance regressions when code cache is filled
anoll
parents:
12175
diff
changeset
|
1456 |
| 0 | 1457 // Change state |
|
1644
2a47bd84841f
6965184: possible races in make_not_entrant_or_zombie
never
parents:
1616
diff
changeset
|
1458 _state = state; |
|
1109
032260830071
5057818: codecache full and compiler disabled in bigapps fastdebug run
never
parents:
994
diff
changeset
|
1459 |
|
032260830071
5057818: codecache full and compiler disabled in bigapps fastdebug run
never
parents:
994
diff
changeset
|
1460 // Log the transition once |
|
032260830071
5057818: codecache full and compiler disabled in bigapps fastdebug run
never
parents:
994
diff
changeset
|
1461 log_state_change(); |
|
032260830071
5057818: codecache full and compiler disabled in bigapps fastdebug run
never
parents:
994
diff
changeset
|
1462 |
|
1644
2a47bd84841f
6965184: possible races in make_not_entrant_or_zombie
never
parents:
1616
diff
changeset
|
1463 // Remove nmethod from method. |
|
2a47bd84841f
6965184: possible races in make_not_entrant_or_zombie
never
parents:
1616
diff
changeset
|
1464 // We need to check if both the _code and _from_compiled_code_entry_point |
|
2a47bd84841f
6965184: possible races in make_not_entrant_or_zombie
never
parents:
1616
diff
changeset
|
1465 // refer to this nmethod because there is a race in setting these two fields |
|
6725
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6266
diff
changeset
|
1466 // in Method* as seen in bugid 4947125. |
|
1644
2a47bd84841f
6965184: possible races in make_not_entrant_or_zombie
never
parents:
1616
diff
changeset
|
1467 // If the vep() points to the zombie nmethod, the memory for the nmethod |
|
2a47bd84841f
6965184: possible races in make_not_entrant_or_zombie
never
parents:
1616
diff
changeset
|
1468 // could be flushed and the compiler and vtable stubs could still call |
|
2a47bd84841f
6965184: possible races in make_not_entrant_or_zombie
never
parents:
1616
diff
changeset
|
1469 // through it. |
|
2a47bd84841f
6965184: possible races in make_not_entrant_or_zombie
never
parents:
1616
diff
changeset
|
1470 if (method() != NULL && (method()->code() == this || |
|
2a47bd84841f
6965184: possible races in make_not_entrant_or_zombie
never
parents:
1616
diff
changeset
|
1471 method()->from_compiled_entry() == verified_entry_point())) { |
|
2a47bd84841f
6965184: possible races in make_not_entrant_or_zombie
never
parents:
1616
diff
changeset
|
1472 HandleMark hm; |
|
2a47bd84841f
6965184: possible races in make_not_entrant_or_zombie
never
parents:
1616
diff
changeset
|
1473 method()->clear_code(); |
|
2a47bd84841f
6965184: possible races in make_not_entrant_or_zombie
never
parents:
1616
diff
changeset
|
1474 } |
| 0 | 1475 } // leave critical region under Patching_lock |
| 1476 | |
|
1538
bfe29ec02863
6950075: nmethod sweeper should operate concurrently
never
parents:
1490
diff
changeset
|
1477 // When the nmethod becomes zombie it is no longer alive so the |
|
bfe29ec02863
6950075: nmethod sweeper should operate concurrently
never
parents:
1490
diff
changeset
|
1478 // dependencies must be flushed. nmethods in the not_entrant |
|
bfe29ec02863
6950075: nmethod sweeper should operate concurrently
never
parents:
1490
diff
changeset
|
1479 // state will be flushed later when the transition to zombie |
|
bfe29ec02863
6950075: nmethod sweeper should operate concurrently
never
parents:
1490
diff
changeset
|
1480 // happens or they get unloaded. |
|
bfe29ec02863
6950075: nmethod sweeper should operate concurrently
never
parents:
1490
diff
changeset
|
1481 if (state == zombie) { |
| 1726 | 1482 { |
| 1483 // Flushing dependecies must be done before any possible | |
| 1484 // safepoint can sneak in, otherwise the oops used by the | |
| 1485 // dependency logic could have become stale. | |
| 1486 MutexLockerEx mu(CodeCache_lock, Mutex::_no_safepoint_check_flag); | |
| 12080 | 1487 if (nmethod_needs_unregister) { |
| 1488 Universe::heap()->unregister_nmethod(this); | |
| 1489 } | |
| 1726 | 1490 flush_dependencies(NULL); |
| 1491 } | |
|
1644
2a47bd84841f
6965184: possible races in make_not_entrant_or_zombie
never
parents:
1616
diff
changeset
|
1492 |
|
2342
46a56fac55c7
7024970: 2/3 assert(ServiceThread::is_service_thread(Thread::current())) failed: Service thread must post enqueue
dcubed
parents:
2321
diff
changeset
|
1493 // zombie only - if a JVMTI agent has enabled the CompiledMethodUnload |
|
46a56fac55c7
7024970: 2/3 assert(ServiceThread::is_service_thread(Thread::current())) failed: Service thread must post enqueue
dcubed
parents:
2321
diff
changeset
|
1494 // event and it hasn't already been reported for this nmethod then |
|
46a56fac55c7
7024970: 2/3 assert(ServiceThread::is_service_thread(Thread::current())) failed: Service thread must post enqueue
dcubed
parents:
2321
diff
changeset
|
1495 // report it now. The event may have been reported earilier if the GC |
|
46a56fac55c7
7024970: 2/3 assert(ServiceThread::is_service_thread(Thread::current())) failed: Service thread must post enqueue
dcubed
parents:
2321
diff
changeset
|
1496 // marked it for unloading). JvmtiDeferredEventQueue support means |
|
46a56fac55c7
7024970: 2/3 assert(ServiceThread::is_service_thread(Thread::current())) failed: Service thread must post enqueue
dcubed
parents:
2321
diff
changeset
|
1497 // we no longer go to a safepoint here. |
|
46a56fac55c7
7024970: 2/3 assert(ServiceThread::is_service_thread(Thread::current())) failed: Service thread must post enqueue
dcubed
parents:
2321
diff
changeset
|
1498 post_compiled_method_unload(); |
| 1726 | 1499 |
| 1500 #ifdef ASSERT | |
| 1501 // It's no longer safe to access the oops section since zombie | |
| 1502 // nmethods aren't scanned for GC. | |
| 1503 _oops_are_stale = true; | |
| 1504 #endif | |
|
12161
e1fbb86b47e4
8016277: Crash in nmethod::is_compiled_by_c1() on x86
roland
parents:
12080
diff
changeset
|
1505 // the Method may be reclaimed by class unloading now that the |
|
e1fbb86b47e4
8016277: Crash in nmethod::is_compiled_by_c1() on x86
roland
parents:
12080
diff
changeset
|
1506 // nmethod is in zombie state |
|
e1fbb86b47e4
8016277: Crash in nmethod::is_compiled_by_c1() on x86
roland
parents:
12080
diff
changeset
|
1507 set_method(NULL); |
|
1538
bfe29ec02863
6950075: nmethod sweeper should operate concurrently
never
parents:
1490
diff
changeset
|
1508 } else { |
|
bfe29ec02863
6950075: nmethod sweeper should operate concurrently
never
parents:
1490
diff
changeset
|
1509 assert(state == not_entrant, "other cases may need to be handled differently"); |
|
bfe29ec02863
6950075: nmethod sweeper should operate concurrently
never
parents:
1490
diff
changeset
|
1510 } |
|
12414
98031e66de15
Fix unittests
Christos Kotselidis <christos.kotselidis@oracle.com>
parents:
12411
diff
changeset
|
1511 #ifdef GRAAL |
|
13230
01080e31692d
fixed crash when TraceCreateZombies is enabled
Doug Simon <doug.simon@oracle.com>
parents:
13102
diff
changeset
|
1512 if (_graal_installed_code != NULL) { |
|
01080e31692d
fixed crash when TraceCreateZombies is enabled
Doug Simon <doug.simon@oracle.com>
parents:
13102
diff
changeset
|
1513 // Break the link between nmethod and HotSpotInstalledCode such that the nmethod can subsequently be flushed safely. |
|
01080e31692d
fixed crash when TraceCreateZombies is enabled
Doug Simon <doug.simon@oracle.com>
parents:
13102
diff
changeset
|
1514 HotSpotInstalledCode::set_codeBlob(_graal_installed_code, 0); |
|
01080e31692d
fixed crash when TraceCreateZombies is enabled
Doug Simon <doug.simon@oracle.com>
parents:
13102
diff
changeset
|
1515 } |
|
12414
98031e66de15
Fix unittests
Christos Kotselidis <christos.kotselidis@oracle.com>
parents:
12411
diff
changeset
|
1516 #endif |
|
1538
bfe29ec02863
6950075: nmethod sweeper should operate concurrently
never
parents:
1490
diff
changeset
|
1517 |
| 0 | 1518 if (TraceCreateZombies) { |
| 9707 | 1519 ResourceMark m; |
|
13230
01080e31692d
fixed crash when TraceCreateZombies is enabled
Doug Simon <doug.simon@oracle.com>
parents:
13102
diff
changeset
|
1520 tty->print_cr("nmethod <" INTPTR_FORMAT "> %s code made %s", this, this->method() ? this->method()->name_and_sig_as_C_string() : "null", (state == not_entrant) ? "not entrant" : "zombie"); |
| 0 | 1521 } |
| 1522 | |
|
13074
78da3894b86f
8027593: performance drop with constrained codecache starting with hs25 b111
anoll
parents:
13071
diff
changeset
|
1523 NMethodSweeper::report_state_change(this); |
|
1109
032260830071
5057818: codecache full and compiler disabled in bigapps fastdebug run
never
parents:
994
diff
changeset
|
1524 return true; |
| 0 | 1525 } |
| 1526 | |
| 1527 void nmethod::flush() { | |
| 1528 // Note that there are no valid oops in the nmethod anymore. | |
| 1529 assert(is_zombie() || (is_osr_method() && is_unloaded()), "must be a zombie method"); | |
| 1530 assert(is_marked_for_reclamation() || (is_osr_method() && is_unloaded()), "must be marked for reclamation"); | |
| 1531 | |
| 1532 assert (!is_locked_by_vm(), "locked methods shouldn't be flushed"); | |
|
1538
bfe29ec02863
6950075: nmethod sweeper should operate concurrently
never
parents:
1490
diff
changeset
|
1533 assert_locked_or_safepoint(CodeCache_lock); |
| 0 | 1534 |
| 1535 // completely deallocate this method | |
|
4872
aa3d708d67c4
7141200: log some interesting information in ring buffers for crashes
never
parents:
4006
diff
changeset
|
1536 Events::log(JavaThread::current(), "flushing nmethod " INTPTR_FORMAT, this); |
| 0 | 1537 if (PrintMethodFlushing) { |
| 1202 | 1538 tty->print_cr("*flushing nmethod %3d/" INTPTR_FORMAT ". Live blobs:" UINT32_FORMAT "/Free CodeCache:" SIZE_FORMAT "Kb", |
| 1539 _compile_id, this, CodeCache::nof_blobs(), CodeCache::unallocated_capacity()/1024); | |
| 0 | 1540 } |
| 1541 | |
| 1542 // We need to deallocate any ExceptionCache data. | |
| 1543 // Note that we do not need to grab the nmethod lock for this, it | |
| 1544 // better be thread safe if we're disposing of it! | |
| 1545 ExceptionCache* ec = exception_cache(); | |
| 1546 set_exception_cache(NULL); | |
| 1547 while(ec != NULL) { | |
| 1548 ExceptionCache* next = ec->next(); | |
| 1549 delete ec; | |
| 1550 ec = next; | |
| 1551 } | |
| 1552 | |
|
989
148e5441d916
6863023: need non-perm oops in code cache for JSR 292
jrose
parents:
931
diff
changeset
|
1553 if (on_scavenge_root_list()) { |
|
148e5441d916
6863023: need non-perm oops in code cache for JSR 292
jrose
parents:
931
diff
changeset
|
1554 CodeCache::drop_scavenge_root_nmethod(this); |
|
148e5441d916
6863023: need non-perm oops in code cache for JSR 292
jrose
parents:
931
diff
changeset
|
1555 } |
|
148e5441d916
6863023: need non-perm oops in code cache for JSR 292
jrose
parents:
931
diff
changeset
|
1556 |
| 1692 | 1557 #ifdef SHARK |
|
1845
a222fcfba398
6990549: Zero and Shark fixes after 6978355 and 6953144
twisti
parents:
1784
diff
changeset
|
1558 ((SharkCompiler *) compiler())->free_compiled_method(insts_begin()); |
| 1692 | 1559 #endif // SHARK |
| 1560 | |
| 0 | 1561 ((CodeBlob*)(this))->flush(); |
| 1562 | |
| 1563 CodeCache::free(this); | |
| 1564 } | |
| 1565 | |
| 1566 | |
| 1567 // | |
| 1568 // Notify all classes this nmethod is dependent on that it is no | |
| 1569 // longer dependent. This should only be called in two situations. | |
| 1570 // First, when a nmethod transitions to a zombie all dependents need | |
| 1571 // to be clear. Since zombification happens at a safepoint there's no | |
| 1572 // synchronization issues. The second place is a little more tricky. | |
| 1573 // During phase 1 of mark sweep class unloading may happen and as a | |
| 1574 // result some nmethods may get unloaded. In this case the flushing | |
| 1575 // of dependencies must happen during phase 1 since after GC any | |
| 1576 // dependencies in the unloaded nmethod won't be updated, so | |
| 1577 // traversing the dependency information in unsafe. In that case this | |
| 1578 // function is called with a non-NULL argument and this function only | |
| 1579 // notifies instanceKlasses that are reachable | |
| 1580 | |
| 1581 void nmethod::flush_dependencies(BoolObjectClosure* is_alive) { | |
|
1538
bfe29ec02863
6950075: nmethod sweeper should operate concurrently
never
parents:
1490
diff
changeset
|
1582 assert_locked_or_safepoint(CodeCache_lock); |
| 0 | 1583 assert(Universe::heap()->is_gc_active() == (is_alive != NULL), |
| 1584 "is_alive is non-NULL if and only if we are called during GC"); | |
| 1585 if (!has_flushed_dependencies()) { | |
| 1586 set_has_flushed_dependencies(); | |
| 1587 for (Dependencies::DepStream deps(this); deps.next(); ) { | |
|
6725
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6266
diff
changeset
|
1588 Klass* klass = deps.context_type(); |
| 0 | 1589 if (klass == NULL) continue; // ignore things like evol_method |
| 1590 | |
| 1591 // During GC the is_alive closure is non-NULL, and is used to | |
| 1592 // determine liveness of dependees that need to be updated. | |
|
6725
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6266
diff
changeset
|
1593 if (is_alive == NULL || klass->is_loader_alive(is_alive)) { |
|
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6266
diff
changeset
|
1594 InstanceKlass::cast(klass)->remove_dependent_nmethod(this); |
| 0 | 1595 } |
| 1596 } | |
| 1597 } | |
| 1598 } | |
| 1599 | |
| 1600 | |
| 1601 // If this oop is not live, the nmethod can be unloaded. | |
|
6787
8966c2d65d96
7200470: KeepAliveClosure not needed in CodeCache::do_unloading
brutisso
parents:
6725
diff
changeset
|
1602 bool nmethod::can_unload(BoolObjectClosure* is_alive, oop* root, bool unloading_occurred) { |
| 0 | 1603 assert(root != NULL, "just checking"); |
| 1604 oop obj = *root; | |
| 1605 if (obj == NULL || is_alive->do_object_b(obj)) { | |
| 1606 return false; | |
| 1607 } | |
|
6725
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6266
diff
changeset
|
1608 |
|
989
148e5441d916
6863023: need non-perm oops in code cache for JSR 292
jrose
parents:
931
diff
changeset
|
1609 // If ScavengeRootsInCode is true, an nmethod might be unloaded |
|
148e5441d916
6863023: need non-perm oops in code cache for JSR 292
jrose
parents:
931
diff
changeset
|
1610 // simply because one of its constant oops has gone dead. |
|
148e5441d916
6863023: need non-perm oops in code cache for JSR 292
jrose
parents:
931
diff
changeset
|
1611 // No actual classes need to be unloaded in order for this to occur. |
|
148e5441d916
6863023: need non-perm oops in code cache for JSR 292
jrose
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931
diff
changeset
|
1612 assert(unloading_occurred || ScavengeRootsInCode, "Inconsistency in unloading"); |
| 0 | 1613 make_unloaded(is_alive, obj); |
| 1614 return true; | |
| 1615 } | |
| 1616 | |
| 1617 // ------------------------------------------------------------------ | |
| 1618 // post_compiled_method_load_event | |
| 1619 // new method for install_code() path | |
| 1620 // Transfer information from compilation to jvmti | |
| 1621 void nmethod::post_compiled_method_load_event() { | |
| 1622 | |
|
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|
1623 Method* moop = method(); |
| 14909 | 1624 #ifndef USDT2 |
| 1625 HS_DTRACE_PROBE8(hotspot, compiled__method__load, | |
| 1626 moop->klass_name()->bytes(), | |
| 1627 moop->klass_name()->utf8_length(), | |
| 1628 moop->name()->bytes(), | |
| 1629 moop->name()->utf8_length(), | |
| 1630 moop->signature()->bytes(), | |
| 1631 moop->signature()->utf8_length(), | |
| 1632 insts_begin(), insts_size()); | |
| 1633 #else /* USDT2 */ | |
| 4006 | 1634 HOTSPOT_COMPILED_METHOD_LOAD( |
| 1635 (char *) moop->klass_name()->bytes(), | |
| 1636 moop->klass_name()->utf8_length(), | |
| 1637 (char *) moop->name()->bytes(), | |
| 1638 moop->name()->utf8_length(), | |
| 1639 (char *) moop->signature()->bytes(), | |
| 1640 moop->signature()->utf8_length(), | |
| 1641 insts_begin(), insts_size()); | |
| 14909 | 1642 #endif /* USDT2 */ |
| 0 | 1643 |
|
1616
38e8278318ca
6656830: assert((*p)->is_oop(),"expected an oop while scanning weak refs")
never
parents:
1602
diff
changeset
|
1644 if (JvmtiExport::should_post_compiled_method_load() || |
|
38e8278318ca
6656830: assert((*p)->is_oop(),"expected an oop while scanning weak refs")
never
parents:
1602
diff
changeset
|
1645 JvmtiExport::should_post_compiled_method_unload()) { |
|
38e8278318ca
6656830: assert((*p)->is_oop(),"expected an oop while scanning weak refs")
never
parents:
1602
diff
changeset
|
1646 get_and_cache_jmethod_id(); |
|
38e8278318ca
6656830: assert((*p)->is_oop(),"expected an oop while scanning weak refs")
never
parents:
1602
diff
changeset
|
1647 } |
|
38e8278318ca
6656830: assert((*p)->is_oop(),"expected an oop while scanning weak refs")
never
parents:
1602
diff
changeset
|
1648 |
| 0 | 1649 if (JvmtiExport::should_post_compiled_method_load()) { |
|
2195
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kamg
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changeset
|
1650 // Let the Service thread (which is a real Java thread) post the event |
|
bf8517f4e4d0
6766644: Redefinition of compiled method fails with assertion "Can not load classes with the Compiler thread"
kamg
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|
1651 MutexLockerEx ml(Service_lock, Mutex::_no_safepoint_check_flag); |
|
bf8517f4e4d0
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|
1652 JvmtiDeferredEventQueue::enqueue( |
|
bf8517f4e4d0
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changeset
|
1653 JvmtiDeferredEvent::compiled_method_load_event(this)); |
| 0 | 1654 } |
| 1655 } | |
| 1656 | |
|
1616
38e8278318ca
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never
parents:
1602
diff
changeset
|
1657 jmethodID nmethod::get_and_cache_jmethod_id() { |
|
38e8278318ca
6656830: assert((*p)->is_oop(),"expected an oop while scanning weak refs")
never
parents:
1602
diff
changeset
|
1658 if (_jmethod_id == NULL) { |
|
38e8278318ca
6656830: assert((*p)->is_oop(),"expected an oop while scanning weak refs")
never
parents:
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diff
changeset
|
1659 // Cache the jmethod_id since it can no longer be looked up once the |
|
38e8278318ca
6656830: assert((*p)->is_oop(),"expected an oop while scanning weak refs")
never
parents:
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changeset
|
1660 // method itself has been marked for unloading. |
|
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6656830: assert((*p)->is_oop(),"expected an oop while scanning weak refs")
never
parents:
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changeset
|
1661 _jmethod_id = method()->jmethod_id(); |
|
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never
parents:
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changeset
|
1662 } |
|
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never
parents:
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|
1663 return _jmethod_id; |
|
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never
parents:
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changeset
|
1664 } |
|
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never
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changeset
|
1665 |
| 0 | 1666 void nmethod::post_compiled_method_unload() { |
|
1577
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parents:
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changeset
|
1667 if (unload_reported()) { |
|
852d0157c696
6956931: assert(SafepointSynchronize::is_at_safepoint()) failed: must be executed at a safepoint
never
parents:
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changeset
|
1668 // During unloading we transition to unloaded and then to zombie |
|
852d0157c696
6956931: assert(SafepointSynchronize::is_at_safepoint()) failed: must be executed at a safepoint
never
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|
1669 // and the unloading is reported during the first transition. |
|
852d0157c696
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never
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|
1670 return; |
|
852d0157c696
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never
parents:
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changeset
|
1671 } |
|
852d0157c696
6956931: assert(SafepointSynchronize::is_at_safepoint()) failed: must be executed at a safepoint
never
parents:
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changeset
|
1672 |
| 0 | 1673 assert(_method != NULL && !is_unloaded(), "just checking"); |
| 1674 DTRACE_METHOD_UNLOAD_PROBE(method()); | |
| 1675 | |
| 1676 // If a JVMTI agent has enabled the CompiledMethodUnload event then | |
|
1616
38e8278318ca
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never
parents:
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changeset
|
1677 // post the event. Sometime later this nmethod will be made a zombie |
|
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|
1678 // by the sweeper but the Method* will not be valid at that point. |
|
1616
38e8278318ca
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never
parents:
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diff
changeset
|
1679 // If the _jmethod_id is null then no load event was ever requested |
|
38e8278318ca
6656830: assert((*p)->is_oop(),"expected an oop while scanning weak refs")
never
parents:
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changeset
|
1680 // so don't bother posting the unload. The main reason for this is |
|
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|
1681 // that the jmethodID is a weak reference to the Method* so if |
|
1616
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6656830: assert((*p)->is_oop(),"expected an oop while scanning weak refs")
never
parents:
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diff
changeset
|
1682 // it's being unloaded there's no way to look it up since the weak |
|
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6656830: assert((*p)->is_oop(),"expected an oop while scanning weak refs")
never
parents:
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diff
changeset
|
1683 // ref will have been cleared. |
|
38e8278318ca
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never
parents:
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changeset
|
1684 if (_jmethod_id != NULL && JvmtiExport::should_post_compiled_method_unload()) { |
| 0 | 1685 assert(!unload_reported(), "already unloaded"); |
|
2195
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kamg
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|
1686 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
|
1687 JvmtiDeferredEvent::compiled_method_unload_event(this, |
|
2195
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6766644: Redefinition of compiled method fails with assertion "Can not load classes with the Compiler thread"
kamg
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|
1688 _jmethod_id, insts_begin()); |
|
bf8517f4e4d0
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kamg
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|
1689 if (SafepointSynchronize::is_at_safepoint()) { |
|
bf8517f4e4d0
6766644: Redefinition of compiled method fails with assertion "Can not load classes with the Compiler thread"
kamg
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changeset
|
1690 // Don't want to take the queueing lock. Add it as pending and |
|
bf8517f4e4d0
6766644: Redefinition of compiled method fails with assertion "Can not load classes with the Compiler thread"
kamg
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diff
changeset
|
1691 // it will get enqueued later. |
|
bf8517f4e4d0
6766644: Redefinition of compiled method fails with assertion "Can not load classes with the Compiler thread"
kamg
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changeset
|
1692 JvmtiDeferredEventQueue::add_pending_event(event); |
|
bf8517f4e4d0
6766644: Redefinition of compiled method fails with assertion "Can not load classes with the Compiler thread"
kamg
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|
1693 } else { |
|
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6766644: Redefinition of compiled method fails with assertion "Can not load classes with the Compiler thread"
kamg
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|
1694 MutexLockerEx ml(Service_lock, Mutex::_no_safepoint_check_flag); |
|
bf8517f4e4d0
6766644: Redefinition of compiled method fails with assertion "Can not load classes with the Compiler thread"
kamg
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2177
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changeset
|
1695 JvmtiDeferredEventQueue::enqueue(event); |
|
bf8517f4e4d0
6766644: Redefinition of compiled method fails with assertion "Can not load classes with the Compiler thread"
kamg
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|
1696 } |
| 0 | 1697 } |
| 1698 | |
| 1699 // The JVMTI CompiledMethodUnload event can be enabled or disabled at | |
| 1700 // any time. As the nmethod is being unloaded now we mark it has | |
| 1701 // having the unload event reported - this will ensure that we don't | |
| 1702 // attempt to report the event in the unlikely scenario where the | |
| 1703 // event is enabled at the time the nmethod is made a zombie. | |
| 1704 set_unload_reported(); | |
| 1705 } | |
| 1706 | |
| 1707 // This is called at the end of the strong tracing/marking phase of a | |
| 1708 // GC to unload an nmethod if it contains otherwise unreachable | |
| 1709 // oops. | |
| 1710 | |
|
6787
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7200470: KeepAliveClosure not needed in CodeCache::do_unloading
brutisso
parents:
6725
diff
changeset
|
1711 void nmethod::do_unloading(BoolObjectClosure* is_alive, bool unloading_occurred) { |
| 0 | 1712 // Make sure the oop's ready to receive visitors |
| 1713 assert(!is_zombie() && !is_unloaded(), | |
| 1714 "should not call follow on zombie or unloaded nmethod"); | |
| 1715 | |
| 1716 // If the method is not entrant then a JMP is plastered over the | |
| 1717 // first few bytes. If an oop in the old code was there, that oop | |
| 1718 // should not get GC'd. Skip the first few bytes of oops on | |
| 1719 // not-entrant methods. | |
| 1720 address low_boundary = verified_entry_point(); | |
| 1721 if (is_not_entrant()) { | |
| 1722 low_boundary += NativeJump::instruction_size; | |
| 1723 // %%% Note: On SPARC we patch only a 4-byte trap, not a full NativeJump. | |
| 1724 // (See comment above.) | |
| 1725 } | |
| 1726 | |
| 1727 // The RedefineClasses() API can cause the class unloading invariant | |
| 1728 // to no longer be true. See jvmtiExport.hpp for details. | |
| 1729 // Also, leave a debugging breadcrumb in local flag. | |
| 1730 bool a_class_was_redefined = JvmtiExport::has_redefined_a_class(); | |
| 1731 if (a_class_was_redefined) { | |
| 1732 // This set of the unloading_occurred flag is done before the | |
| 1733 // call to post_compiled_method_unload() so that the unloading | |
| 1734 // of this nmethod is reported. | |
| 1735 unloading_occurred = true; | |
| 1736 } | |
| 1737 | |
| 9707 | 1738 #ifdef GRAAL |
| 1739 // Follow Graal method | |
| 1740 if (_graal_installed_code != NULL) { | |
| 1741 if (HotSpotNmethod::isDefault(_graal_installed_code)) { | |
| 1742 if (!is_alive->do_object_b(_graal_installed_code)) { | |
| 1743 _graal_installed_code = NULL; | |
| 1744 } | |
| 1745 } else { | |
| 1746 if (can_unload(is_alive, (oop*)&_graal_installed_code, unloading_occurred)) { | |
| 1747 return; | |
| 1748 } | |
| 1749 } | |
| 1750 } | |
|
13641
5a9afbf72714
Add a speculation oop for uncommon trap deoptimization. Save it in the SpeculationLog during deoptimization.
Gilles Duboscq <duboscq@ssw.jku.at>
parents:
13451
diff
changeset
|
1751 |
|
5a9afbf72714
Add a speculation oop for uncommon trap deoptimization. Save it in the SpeculationLog during deoptimization.
Gilles Duboscq <duboscq@ssw.jku.at>
parents:
13451
diff
changeset
|
1752 if (_speculation_log != NULL) { |
|
5a9afbf72714
Add a speculation oop for uncommon trap deoptimization. Save it in the SpeculationLog during deoptimization.
Gilles Duboscq <duboscq@ssw.jku.at>
parents:
13451
diff
changeset
|
1753 if (!is_alive->do_object_b(_speculation_log)) { |
|
5a9afbf72714
Add a speculation oop for uncommon trap deoptimization. Save it in the SpeculationLog during deoptimization.
Gilles Duboscq <duboscq@ssw.jku.at>
parents:
13451
diff
changeset
|
1754 _speculation_log = NULL; |
|
5a9afbf72714
Add a speculation oop for uncommon trap deoptimization. Save it in the SpeculationLog during deoptimization.
Gilles Duboscq <duboscq@ssw.jku.at>
parents:
13451
diff
changeset
|
1755 } |
|
5a9afbf72714
Add a speculation oop for uncommon trap deoptimization. Save it in the SpeculationLog during deoptimization.
Gilles Duboscq <duboscq@ssw.jku.at>
parents:
13451
diff
changeset
|
1756 } |
| 9707 | 1757 #endif |
| 1758 | |
| 0 | 1759 // Exception cache |
| 1760 ExceptionCache* ec = exception_cache(); | |
| 1761 while (ec != NULL) { | |
|
6725
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6964458: Reimplement class meta-data storage to use native memory
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|
1762 Klass* ex_klass = ec->exception_type(); |
| 0 | 1763 ExceptionCache* next_ec = ec->next(); |
|
6725
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6964458: Reimplement class meta-data storage to use native memory
coleenp
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changeset
|
1764 if (ex_klass != NULL && !ex_klass->is_loader_alive(is_alive)) { |
| 0 | 1765 remove_from_exception_cache(ec); |
| 1766 } | |
| 1767 ec = next_ec; | |
| 1768 } | |
| 1769 | |
| 1770 // If class unloading occurred we first iterate over all inline caches and | |
| 1771 // clear ICs where the cached oop is referring to an unloaded klass or method. | |
| 1772 // The remaining live cached oops will be traversed in the relocInfo::oop_type | |
| 1773 // iteration below. | |
| 1774 if (unloading_occurred) { | |
| 1775 RelocIterator iter(this, low_boundary); | |
| 1776 while(iter.next()) { | |
| 1777 if (iter.type() == relocInfo::virtual_call_type) { | |
| 1778 CompiledIC *ic = CompiledIC_at(iter.reloc()); | |
|
6725
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
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6266
diff
changeset
|
1779 if (ic->is_icholder_call()) { |
| 0 | 1780 // The only exception is compiledICHolder oops which may |
| 1781 // yet be marked below. (We check this further below). | |
|
6725
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
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changeset
|
1782 CompiledICHolder* cichk_oop = ic->cached_icholder(); |
|
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
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6266
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changeset
|
1783 if (cichk_oop->holder_method()->method_holder()->is_loader_alive(is_alive) && |
|
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
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diff
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|
1784 cichk_oop->holder_klass()->is_loader_alive(is_alive)) { |
| 13441 | 1785 continue; |
| 1786 } | |
|
6725
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6266
diff
changeset
|
1787 } else { |
|
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
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changeset
|
1788 Metadata* ic_oop = ic->cached_metadata(); |
|
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
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|
1789 if (ic_oop != NULL) { |
|
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
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|
1790 if (ic_oop->is_klass()) { |
|
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
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|
1791 if (((Klass*)ic_oop)->is_loader_alive(is_alive)) { |
|
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
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changeset
|
1792 continue; |
|
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
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changeset
|
1793 } |
|
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
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changeset
|
1794 } else if (ic_oop->is_method()) { |
|
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
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6266
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changeset
|
1795 if (((Method*)ic_oop)->method_holder()->is_loader_alive(is_alive)) { |
|
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6266
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changeset
|
1796 continue; |
|
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
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6266
diff
changeset
|
1797 } |
|
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
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changeset
|
1798 } else { |
|
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
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6266
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changeset
|
1799 ShouldNotReachHere(); |
|
da91efe96a93
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coleenp
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|
1800 } |
|
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|
1801 } |
| 13441 | 1802 } |
| 1803 ic->set_to_clean(); | |
| 0 | 1804 } |
| 1805 } | |
| 1806 } | |
| 1807 | |
| 1808 // Compiled code | |
|
6725
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coleenp
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|
1809 { |
| 0 | 1810 RelocIterator iter(this, low_boundary); |
| 1811 while (iter.next()) { | |
| 1812 if (iter.type() == relocInfo::oop_type) { | |
| 1813 oop_Relocation* r = iter.oop_reloc(); | |
| 1814 // In this loop, we must only traverse those oops directly embedded in | |
| 1815 // the code. Other oops (oop_index>0) are seen as part of scopes_oops. | |
| 1816 assert(1 == (r->oop_is_immediate()) + | |
| 1817 (r->oop_addr() >= oops_begin() && r->oop_addr() < oops_end()), | |
| 1818 "oop must be found in exactly one place"); | |
| 1819 if (r->oop_is_immediate() && r->oop_value() != NULL) { | |
|
6787
8966c2d65d96
7200470: KeepAliveClosure not needed in CodeCache::do_unloading
brutisso
parents:
6725
diff
changeset
|
1820 if (can_unload(is_alive, r->oop_addr(), unloading_occurred)) { |
| 0 | 1821 return; |
| 1822 } | |
| 1823 } | |
| 1824 } | |
| 1825 } | |
|
6725
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
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1826 } |
| 0 | 1827 |
| 1828 | |
| 1829 // Scopes | |
| 1830 for (oop* p = oops_begin(); p < oops_end(); p++) { | |
| 1831 if (*p == Universe::non_oop_word()) continue; // skip non-oops | |
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1832 if (can_unload(is_alive, p, unloading_occurred)) { |
| 0 | 1833 return; |
| 1834 } | |
| 1835 } | |
| 1836 | |
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1837 // Ensure that all metadata is still alive |
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1838 verify_metadata_loaders(low_boundary, is_alive); |
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1839 } |
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1840 |
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1841 #ifdef ASSERT |
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1842 |
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1843 class CheckClass : AllStatic { |
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1844 static BoolObjectClosure* _is_alive; |
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1845 |
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1846 // Check class_loader is alive for this bit of metadata. |
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1847 static void check_class(Metadata* md) { |
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1848 Klass* klass = NULL; |
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1849 if (md->is_klass()) { |
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1850 klass = ((Klass*)md); |
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1851 } else if (md->is_method()) { |
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1852 klass = ((Method*)md)->method_holder(); |
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1853 } else if (md->is_methodData()) { |
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1854 klass = ((MethodData*)md)->method()->method_holder(); |
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1855 } else { |
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1856 md->print(); |
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1857 ShouldNotReachHere(); |
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1858 } |
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1859 assert(klass->is_loader_alive(_is_alive), "must be alive"); |
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1860 } |
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1861 public: |
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1862 static void do_check_class(BoolObjectClosure* is_alive, nmethod* nm) { |
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1863 assert(SafepointSynchronize::is_at_safepoint(), "this is only ok at safepoint"); |
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1864 _is_alive = is_alive; |
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1865 nm->metadata_do(check_class); |
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1866 } |
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1867 }; |
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1868 |
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1869 // This is called during a safepoint so can use static data |
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1870 BoolObjectClosure* CheckClass::_is_alive = NULL; |
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1871 #endif // ASSERT |
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1872 |
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1873 |
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1874 // Processing of oop references should have been sufficient to keep |
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1875 // all strong references alive. Any weak references should have been |
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1876 // cleared as well. Visit all the metadata and ensure that it's |
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1877 // really alive. |
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1878 void nmethod::verify_metadata_loaders(address low_boundary, BoolObjectClosure* is_alive) { |
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1879 #ifdef ASSERT |
| 0 | 1880 RelocIterator iter(this, low_boundary); |
| 1881 while (iter.next()) { | |
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1882 // static_stub_Relocations may have dangling references to |
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1883 // Method*s so trim them out here. Otherwise it looks like |
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1884 // compiled code is maintaining a link to dead metadata. |
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1885 address static_call_addr = NULL; |
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1886 if (iter.type() == relocInfo::opt_virtual_call_type) { |
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1887 CompiledIC* cic = CompiledIC_at(iter.reloc()); |
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1888 if (!cic->is_call_to_interpreted()) { |
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1889 static_call_addr = iter.addr(); |
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1890 } |
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1891 } else if (iter.type() == relocInfo::static_call_type) { |
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1892 CompiledStaticCall* csc = compiledStaticCall_at(iter.reloc()); |
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1893 if (!csc->is_call_to_interpreted()) { |
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1894 static_call_addr = iter.addr(); |
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1895 } |
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1896 } |
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1897 if (static_call_addr != NULL) { |
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1898 RelocIterator sciter(this, low_boundary); |
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1899 while (sciter.next()) { |
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1900 if (sciter.type() == relocInfo::static_stub_type && |
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1901 sciter.static_stub_reloc()->static_call() == static_call_addr) { |
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1902 sciter.static_stub_reloc()->clear_inline_cache(); |
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1903 } |
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1904 } |
| 0 | 1905 } |
| 1906 } | |
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1907 // Check that the metadata embedded in the nmethod is alive |
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1908 CheckClass::do_check_class(is_alive, this); |
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1909 #endif |
| 0 | 1910 } |
| 1911 | |
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1912 |
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1913 // Iterate over metadata calling this function. Used by RedefineClasses |
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1914 void nmethod::metadata_do(void f(Metadata*)) { |
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1915 address low_boundary = verified_entry_point(); |
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1916 if (is_not_entrant()) { |
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1917 low_boundary += NativeJump::instruction_size; |
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1918 // %%% Note: On SPARC we patch only a 4-byte trap, not a full NativeJump. |
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1919 // (See comment above.) |
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1920 } |
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1921 { |
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1922 // Visit all immediate references that are embedded in the instruction stream. |
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1923 RelocIterator iter(this, low_boundary); |
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1924 while (iter.next()) { |
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1925 if (iter.type() == relocInfo::metadata_type ) { |
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1926 metadata_Relocation* r = iter.metadata_reloc(); |
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1927 // In this lmetadata, we must only follow those metadatas directly embedded in |
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1928 // the code. Other metadatas (oop_index>0) are seen as part of |
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1929 // the metadata section below. |
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1930 assert(1 == (r->metadata_is_immediate()) + |
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1931 (r->metadata_addr() >= metadata_begin() && r->metadata_addr() < metadata_end()), |
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1932 "metadata must be found in exactly one place"); |
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1933 if (r->metadata_is_immediate() && r->metadata_value() != NULL) { |
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1934 Metadata* md = r->metadata_value(); |
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1935 f(md); |
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1936 } |
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1937 } else if (iter.type() == relocInfo::virtual_call_type) { |
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1938 // Check compiledIC holders associated with this nmethod |
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1939 CompiledIC *ic = CompiledIC_at(iter.reloc()); |
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1940 if (ic->is_icholder_call()) { |
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1941 CompiledICHolder* cichk = ic->cached_icholder(); |
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1942 f(cichk->holder_method()); |
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1943 f(cichk->holder_klass()); |
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1944 } else { |
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1945 Metadata* ic_oop = ic->cached_metadata(); |
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1946 if (ic_oop != NULL) { |
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1947 f(ic_oop); |
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1948 } |
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1949 } |
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1950 } |
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1951 } |
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1952 } |
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1953 |
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1954 // Visit the metadata section |
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1955 for (Metadata** p = metadata_begin(); p < metadata_end(); p++) { |
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1956 if (*p == Universe::non_oop_word() || *p == NULL) continue; // skip non-oops |
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1957 Metadata* md = *p; |
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1958 f(md); |
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1959 } |
|
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1960 |
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1961 // Call function Method*, not embedded in these other places. |
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1962 if (_method != NULL) f(_method); |
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1963 } |
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1964 |
| 12080 | 1965 void nmethod::oops_do(OopClosure* f, bool allow_zombie) { |
| 0 | 1966 // make sure the oops ready to receive visitors |
| 12080 | 1967 assert(allow_zombie || !is_zombie(), "should not call follow on zombie nmethod"); |
| 1968 assert(!is_unloaded(), "should not call follow on unloaded nmethod"); | |
| 0 | 1969 |
| 1970 // If the method is not entrant or zombie then a JMP is plastered over the | |
| 1971 // first few bytes. If an oop in the old code was there, that oop | |
| 1972 // should not get GC'd. Skip the first few bytes of oops on | |
| 1973 // not-entrant methods. | |
| 1974 address low_boundary = verified_entry_point(); | |
|
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1975 if (is_not_entrant() || is_zombie()) { |
| 0 | 1976 low_boundary += NativeJump::instruction_size; |
| 1977 // %%% Note: On SPARC we patch only a 4-byte trap, not a full NativeJump. | |
| 1978 // (See comment above.) | |
| 1979 } | |
| 1980 | |
| 9707 | 1981 #ifdef GRAAL |
| 1982 if (_graal_installed_code != NULL) { | |
| 1983 f->do_oop((oop*) &_graal_installed_code); | |
| 1984 } | |
|
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1985 if (_speculation_log != NULL) { |
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1986 f->do_oop((oop*) &_speculation_log); |
| 9707 | 1987 } |
| 1988 #endif | |
| 1989 | |
| 0 | 1990 RelocIterator iter(this, low_boundary); |
| 941 | 1991 |
| 0 | 1992 while (iter.next()) { |
| 1993 if (iter.type() == relocInfo::oop_type ) { | |
| 1994 oop_Relocation* r = iter.oop_reloc(); | |
| 1995 // In this loop, we must only follow those oops directly embedded in | |
| 1996 // the code. Other oops (oop_index>0) are seen as part of scopes_oops. | |
| 941 | 1997 assert(1 == (r->oop_is_immediate()) + |
| 1998 (r->oop_addr() >= oops_begin() && r->oop_addr() < oops_end()), | |
| 1999 "oop must be found in exactly one place"); | |
| 0 | 2000 if (r->oop_is_immediate() && r->oop_value() != NULL) { |
| 2001 f->do_oop(r->oop_addr()); | |
| 2002 } | |
| 2003 } | |
| 2004 } | |
| 2005 | |
| 2006 // Scopes | |
|
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2007 // This includes oop constants not inlined in the code stream. |
| 0 | 2008 for (oop* p = oops_begin(); p < oops_end(); p++) { |
| 2009 if (*p == Universe::non_oop_word()) continue; // skip non-oops | |
| 2010 f->do_oop(p); | |
| 2011 } | |
| 2012 } | |
| 2013 | |
|
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2014 #define NMETHOD_SENTINEL ((nmethod*)badAddress) |
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2015 |
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2016 nmethod* volatile nmethod::_oops_do_mark_nmethods; |
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2017 |
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2018 // An nmethod is "marked" if its _mark_link is set non-null. |
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2019 // Even if it is the end of the linked list, it will have a non-null link value, |
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2020 // as long as it is on the list. |
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2021 // This code must be MP safe, because it is used from parallel GC passes. |
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2022 bool nmethod::test_set_oops_do_mark() { |
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2023 assert(nmethod::oops_do_marking_is_active(), "oops_do_marking_prologue must be called"); |
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2024 nmethod* observed_mark_link = _oops_do_mark_link; |
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2025 if (observed_mark_link == NULL) { |
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2026 // Claim this nmethod for this thread to mark. |
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2027 observed_mark_link = (nmethod*) |
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2028 Atomic::cmpxchg_ptr(NMETHOD_SENTINEL, &_oops_do_mark_link, NULL); |
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2029 if (observed_mark_link == NULL) { |
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2030 |
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2031 // Atomically append this nmethod (now claimed) to the head of the list: |
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2032 nmethod* observed_mark_nmethods = _oops_do_mark_nmethods; |
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2033 for (;;) { |
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2034 nmethod* required_mark_nmethods = observed_mark_nmethods; |
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2035 _oops_do_mark_link = required_mark_nmethods; |
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2036 observed_mark_nmethods = (nmethod*) |
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2037 Atomic::cmpxchg_ptr(this, &_oops_do_mark_nmethods, required_mark_nmethods); |
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2038 if (observed_mark_nmethods == required_mark_nmethods) |
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2039 break; |
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2040 } |
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2041 // Mark was clear when we first saw this guy. |
|
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2042 NOT_PRODUCT(if (TraceScavenge) print_on(tty, "oops_do, mark")); |
|
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2043 return false; |
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2044 } |
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2045 } |
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2046 // On fall through, another racing thread marked this nmethod before we did. |
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2047 return true; |
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2048 } |
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2049 |
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2050 void nmethod::oops_do_marking_prologue() { |
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2051 NOT_PRODUCT(if (TraceScavenge) tty->print_cr("[oops_do_marking_prologue")); |
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2052 assert(_oops_do_mark_nmethods == NULL, "must not call oops_do_marking_prologue twice in a row"); |
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2053 // We use cmpxchg_ptr instead of regular assignment here because the user |
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2054 // may fork a bunch of threads, and we need them all to see the same state. |
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2055 void* observed = Atomic::cmpxchg_ptr(NMETHOD_SENTINEL, &_oops_do_mark_nmethods, NULL); |
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2056 guarantee(observed == NULL, "no races in this sequential code"); |
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2057 } |
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2058 |
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2059 void nmethod::oops_do_marking_epilogue() { |
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2060 assert(_oops_do_mark_nmethods != NULL, "must not call oops_do_marking_epilogue twice in a row"); |
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2061 nmethod* cur = _oops_do_mark_nmethods; |
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2062 while (cur != NMETHOD_SENTINEL) { |
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2063 assert(cur != NULL, "not NULL-terminated"); |
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2064 nmethod* next = cur->_oops_do_mark_link; |
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2065 cur->_oops_do_mark_link = NULL; |
|
2375
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2066 cur->fix_oop_relocations(); |
|
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2067 NOT_PRODUCT(if (TraceScavenge) cur->print_on(tty, "oops_do, unmark")); |
|
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2068 cur = next; |
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2069 } |
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2070 void* required = _oops_do_mark_nmethods; |
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2071 void* observed = Atomic::cmpxchg_ptr(NULL, &_oops_do_mark_nmethods, required); |
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2072 guarantee(observed == required, "no races in this sequential code"); |
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2073 NOT_PRODUCT(if (TraceScavenge) tty->print_cr("oops_do_marking_epilogue]")); |
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2074 } |
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2075 |
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2076 class DetectScavengeRoot: public OopClosure { |
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2077 bool _detected_scavenge_root; |
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2078 public: |
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2079 DetectScavengeRoot() : _detected_scavenge_root(false) |
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2080 { NOT_PRODUCT(_print_nm = NULL); } |
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2081 bool detected_scavenge_root() { return _detected_scavenge_root; } |
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2082 virtual void do_oop(oop* p) { |
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2083 if ((*p) != NULL && (*p)->is_scavengable()) { |
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2084 NOT_PRODUCT(maybe_print(p)); |
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2085 _detected_scavenge_root = true; |
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2086 } |
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2087 } |
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2088 virtual void do_oop(narrowOop* p) { ShouldNotReachHere(); } |
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2089 |
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2090 #ifndef PRODUCT |
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2091 nmethod* _print_nm; |
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2092 void maybe_print(oop* p) { |
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2093 if (_print_nm == NULL) return; |
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2094 if (!_detected_scavenge_root) _print_nm->print_on(tty, "new scavenge root"); |
|
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2095 tty->print_cr(""PTR_FORMAT"[offset=%d] detected scavengable oop "PTR_FORMAT" (found at "PTR_FORMAT")", |
|
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2096 _print_nm, (int)((intptr_t)p - (intptr_t)_print_nm), |
|
12316
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2097 (void *)(*p), (intptr_t)p); |
|
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2098 (*p)->print(); |
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2099 } |
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2100 #endif //PRODUCT |
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2101 }; |
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2102 |
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2103 bool nmethod::detect_scavenge_root_oops() { |
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2104 DetectScavengeRoot detect_scavenge_root; |
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2105 NOT_PRODUCT(if (TraceScavenge) detect_scavenge_root._print_nm = this); |
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2106 oops_do(&detect_scavenge_root); |
|
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2107 return detect_scavenge_root.detected_scavenge_root(); |
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2108 } |
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2109 |
| 0 | 2110 // Method that knows how to preserve outgoing arguments at call. This method must be |
| 2111 // called with a frame corresponding to a Java invoke | |
| 2112 void nmethod::preserve_callee_argument_oops(frame fr, const RegisterMap *reg_map, OopClosure* f) { | |
| 1692 | 2113 #ifndef SHARK |
| 0 | 2114 if (!method()->is_native()) { |
| 2115 SimpleScopeDesc ssd(this, fr.pc()); | |
| 2142 | 2116 Bytecode_invoke call(ssd.method(), ssd.bci()); |
| 10390 | 2117 bool has_receiver = call.has_receiver(); |
| 2118 bool has_appendix = call.has_appendix(); | |
|
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2119 Symbol* signature = call.signature(); |
| 10390 | 2120 fr.oops_compiled_arguments_do(signature, has_receiver, has_appendix, reg_map, f); |
| 0 | 2121 } |
| 1692 | 2122 #endif // !SHARK |
| 0 | 2123 } |
| 2124 | |
| 2125 | |
| 2126 oop nmethod::embeddedOop_at(u_char* p) { | |
|
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2127 RelocIterator iter(this, p, p + 1); |
| 0 | 2128 while (iter.next()) |
| 2129 if (iter.type() == relocInfo::oop_type) { | |
| 2130 return iter.oop_reloc()->oop_value(); | |
| 2131 } | |
| 2132 return NULL; | |
| 2133 } | |
| 2134 | |
| 2135 | |
| 2136 inline bool includes(void* p, void* from, void* to) { | |
| 2137 return from <= p && p < to; | |
| 2138 } | |
| 2139 | |
| 2140 | |
| 2141 void nmethod::copy_scopes_pcs(PcDesc* pcs, int count) { | |
| 2142 assert(count >= 2, "must be sentinel values, at least"); | |
| 2143 | |
| 2144 #ifdef ASSERT | |
| 2145 // must be sorted and unique; we do a binary search in find_pc_desc() | |
| 2146 int prev_offset = pcs[0].pc_offset(); | |
| 2147 assert(prev_offset == PcDesc::lower_offset_limit, | |
| 2148 "must start with a sentinel"); | |
| 2149 for (int i = 1; i < count; i++) { | |
| 2150 int this_offset = pcs[i].pc_offset(); | |
| 2151 assert(this_offset > prev_offset, "offsets must be sorted"); | |
| 2152 prev_offset = this_offset; | |
| 2153 } | |
| 2154 assert(prev_offset == PcDesc::upper_offset_limit, | |
| 2155 "must end with a sentinel"); | |
| 2156 #endif //ASSERT | |
| 2157 | |
|
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2158 // Search for MethodHandle invokes and tag the nmethod. |
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2159 for (int i = 0; i < count; i++) { |
|
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2160 if (pcs[i].is_method_handle_invoke()) { |
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2161 set_has_method_handle_invokes(true); |
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2162 break; |
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2163 } |
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2164 } |
|
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2165 assert(has_method_handle_invokes() == (_deoptimize_mh_offset != -1), "must have deopt mh handler"); |
|
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2166 |
| 0 | 2167 int size = count * sizeof(PcDesc); |
| 2168 assert(scopes_pcs_size() >= size, "oob"); | |
| 2169 memcpy(scopes_pcs_begin(), pcs, size); | |
| 2170 | |
| 2171 // Adjust the final sentinel downward. | |
| 2172 PcDesc* last_pc = &scopes_pcs_begin()[count-1]; | |
| 2173 assert(last_pc->pc_offset() == PcDesc::upper_offset_limit, "sanity"); | |
| 1748 | 2174 last_pc->set_pc_offset(content_size() + 1); |
| 0 | 2175 for (; last_pc + 1 < scopes_pcs_end(); last_pc += 1) { |
| 2176 // Fill any rounding gaps with copies of the last record. | |
| 2177 last_pc[1] = last_pc[0]; | |
| 2178 } | |
| 2179 // The following assert could fail if sizeof(PcDesc) is not | |
| 2180 // an integral multiple of oopSize (the rounding term). | |
| 2181 // If it fails, change the logic to always allocate a multiple | |
| 2182 // of sizeof(PcDesc), and fill unused words with copies of *last_pc. | |
| 2183 assert(last_pc + 1 == scopes_pcs_end(), "must match exactly"); | |
| 2184 } | |
| 2185 | |
| 2186 void nmethod::copy_scopes_data(u_char* buffer, int size) { | |
| 2187 assert(scopes_data_size() >= size, "oob"); | |
| 2188 memcpy(scopes_data_begin(), buffer, size); | |
| 2189 } | |
| 2190 | |
| 2191 | |
| 2192 #ifdef ASSERT | |
| 2193 static PcDesc* linear_search(nmethod* nm, int pc_offset, bool approximate) { | |
| 2194 PcDesc* lower = nm->scopes_pcs_begin(); | |
| 2195 PcDesc* upper = nm->scopes_pcs_end(); | |
| 2196 lower += 1; // exclude initial sentinel | |
| 2197 PcDesc* res = NULL; | |
| 2198 for (PcDesc* p = lower; p < upper; p++) { | |
|
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2199 NOT_PRODUCT(--pc_nmethod_stats.pc_desc_tests); // don't count this call to match_desc |
| 0 | 2200 if (match_desc(p, pc_offset, approximate)) { |
| 2201 if (res == NULL) | |
| 2202 res = p; | |
| 2203 else | |
| 2204 res = (PcDesc*) badAddress; | |
| 2205 } | |
| 2206 } | |
| 2207 return res; | |
| 2208 } | |
| 2209 #endif | |
| 2210 | |
| 2211 | |
| 2212 // Finds a PcDesc with real-pc equal to "pc" | |
| 2213 PcDesc* nmethod::find_pc_desc_internal(address pc, bool approximate) { | |
| 1748 | 2214 address base_address = code_begin(); |
| 0 | 2215 if ((pc < base_address) || |
| 2216 (pc - base_address) >= (ptrdiff_t) PcDesc::upper_offset_limit) { | |
| 2217 return NULL; // PC is wildly out of range | |
| 2218 } | |
| 2219 int pc_offset = (int) (pc - base_address); | |
| 2220 | |
| 2221 // Check the PcDesc cache if it contains the desired PcDesc | |
| 2222 // (This as an almost 100% hit rate.) | |
| 2223 PcDesc* res = _pc_desc_cache.find_pc_desc(pc_offset, approximate); | |
| 2224 if (res != NULL) { | |
| 2225 assert(res == linear_search(this, pc_offset, approximate), "cache ok"); | |
| 2226 return res; | |
| 2227 } | |
| 2228 | |
| 2229 // Fallback algorithm: quasi-linear search for the PcDesc | |
| 2230 // Find the last pc_offset less than the given offset. | |
| 2231 // The successor must be the required match, if there is a match at all. | |
| 2232 // (Use a fixed radix to avoid expensive affine pointer arithmetic.) | |
| 2233 PcDesc* lower = scopes_pcs_begin(); | |
| 2234 PcDesc* upper = scopes_pcs_end(); | |
| 2235 upper -= 1; // exclude final sentinel | |
| 2236 if (lower >= upper) return NULL; // native method; no PcDescs at all | |
| 2237 | |
| 2238 #define assert_LU_OK \ | |
| 2239 /* invariant on lower..upper during the following search: */ \ | |
| 2240 assert(lower->pc_offset() < pc_offset, "sanity"); \ | |
| 2241 assert(upper->pc_offset() >= pc_offset, "sanity") | |
| 2242 assert_LU_OK; | |
| 2243 | |
| 2244 // Use the last successful return as a split point. | |
| 2245 PcDesc* mid = _pc_desc_cache.last_pc_desc(); | |
|
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|
2246 NOT_PRODUCT(++pc_nmethod_stats.pc_desc_searches); |
| 0 | 2247 if (mid->pc_offset() < pc_offset) { |
| 2248 lower = mid; | |
| 2249 } else { | |
| 2250 upper = mid; | |
| 2251 } | |
| 2252 | |
| 2253 // Take giant steps at first (4096, then 256, then 16, then 1) | |
| 2254 const int LOG2_RADIX = 4 /*smaller steps in debug mode:*/ debug_only(-1); | |
| 2255 const int RADIX = (1 << LOG2_RADIX); | |
| 2256 for (int step = (1 << (LOG2_RADIX*3)); step > 1; step >>= LOG2_RADIX) { | |
| 2257 while ((mid = lower + step) < upper) { | |
| 2258 assert_LU_OK; | |
|
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|
2259 NOT_PRODUCT(++pc_nmethod_stats.pc_desc_searches); |
| 0 | 2260 if (mid->pc_offset() < pc_offset) { |
| 2261 lower = mid; | |
| 2262 } else { | |
| 2263 upper = mid; | |
| 2264 break; | |
| 2265 } | |
| 2266 } | |
| 2267 assert_LU_OK; | |
| 2268 } | |
| 2269 | |
| 2270 // Sneak up on the value with a linear search of length ~16. | |
| 2271 while (true) { | |
| 2272 assert_LU_OK; | |
| 2273 mid = lower + 1; | |
|
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2274 NOT_PRODUCT(++pc_nmethod_stats.pc_desc_searches); |
| 0 | 2275 if (mid->pc_offset() < pc_offset) { |
| 2276 lower = mid; | |
| 2277 } else { | |
| 2278 upper = mid; | |
| 2279 break; | |
| 2280 } | |
| 2281 } | |
| 2282 #undef assert_LU_OK | |
| 2283 | |
| 2284 if (match_desc(upper, pc_offset, approximate)) { | |
| 2285 assert(upper == linear_search(this, pc_offset, approximate), "search ok"); | |
| 2286 _pc_desc_cache.add_pc_desc(upper); | |
| 2287 return upper; | |
| 2288 } else { | |
| 2289 assert(NULL == linear_search(this, pc_offset, approximate), "search ok"); | |
| 2290 return NULL; | |
| 2291 } | |
| 2292 } | |
| 2293 | |
| 2294 | |
| 14909 | 2295 bool nmethod::check_all_dependencies() { |
| 2296 bool found_check = false; | |
| 2297 // wholesale check of all dependencies | |
| 2298 for (Dependencies::DepStream deps(this); deps.next(); ) { | |
| 2299 if (deps.check_dependency() != NULL) { | |
| 2300 found_check = true; | |
| 2301 NOT_DEBUG(break); | |
| 0 | 2302 } |
| 2303 } | |
| 14909 | 2304 return found_check; // tell caller if we found anything |
| 0 | 2305 } |
| 2306 | |
| 2307 bool nmethod::check_dependency_on(DepChange& changes) { | |
| 2308 // What has happened: | |
| 2309 // 1) a new class dependee has been added | |
| 2310 // 2) dependee and all its super classes have been marked | |
| 2311 bool found_check = false; // set true if we are upset | |
| 2312 for (Dependencies::DepStream deps(this); deps.next(); ) { | |
| 2313 // Evaluate only relevant dependencies. | |
| 2314 if (deps.spot_check_dependency_at(changes) != NULL) { | |
| 2315 found_check = true; | |
| 2316 NOT_DEBUG(break); | |
| 2317 } | |
| 2318 } | |
| 2319 return found_check; | |
| 2320 } | |
| 2321 | |
|
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2322 bool nmethod::is_evol_dependent_on(Klass* dependee) { |
|
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2323 InstanceKlass *dependee_ik = InstanceKlass::cast(dependee); |
|
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2324 Array<Method*>* dependee_methods = dependee_ik->methods(); |
| 0 | 2325 for (Dependencies::DepStream deps(this); deps.next(); ) { |
| 2326 if (deps.type() == Dependencies::evol_method) { | |
|
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2327 Method* method = deps.method_argument(0); |
| 0 | 2328 for (int j = 0; j < dependee_methods->length(); j++) { |
|
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2329 if (dependee_methods->at(j) == method) { |
| 0 | 2330 // RC_TRACE macro has an embedded ResourceMark |
| 2331 RC_TRACE(0x01000000, | |
| 2332 ("Found evol dependency of nmethod %s.%s(%s) compile_id=%d on method %s.%s(%s)", | |
|
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2333 _method->method_holder()->external_name(), |
| 0 | 2334 _method->name()->as_C_string(), |
| 2335 _method->signature()->as_C_string(), compile_id(), | |
|
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2336 method->method_holder()->external_name(), |
| 0 | 2337 method->name()->as_C_string(), |
| 2338 method->signature()->as_C_string())); | |
| 2339 if (TraceDependencies || LogCompilation) | |
| 2340 deps.log_dependency(dependee); | |
| 2341 return true; | |
| 2342 } | |
| 2343 } | |
| 2344 } | |
| 2345 } | |
| 2346 return false; | |
| 2347 } | |
| 2348 | |
| 2349 // Called from mark_for_deoptimization, when dependee is invalidated. | |
|
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2350 bool nmethod::is_dependent_on_method(Method* dependee) { |
| 0 | 2351 for (Dependencies::DepStream deps(this); deps.next(); ) { |
| 2352 if (deps.type() != Dependencies::evol_method) | |
| 2353 continue; | |
|
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2354 Method* method = deps.method_argument(0); |
| 0 | 2355 if (method == dependee) return true; |
| 2356 } | |
| 2357 return false; | |
| 2358 } | |
| 2359 | |
| 2360 | |
| 2361 bool nmethod::is_patchable_at(address instr_addr) { | |
| 1748 | 2362 assert(insts_contains(instr_addr), "wrong nmethod used"); |
| 0 | 2363 if (is_zombie()) { |
| 2364 // a zombie may never be patched | |
| 2365 return false; | |
| 2366 } | |
| 2367 return true; | |
| 2368 } | |
| 2369 | |
| 2370 | |
| 2371 address nmethod::continuation_for_implicit_exception(address pc) { | |
| 2372 // Exception happened outside inline-cache check code => we are inside | |
| 2373 // an active nmethod => use cpc to determine a return address | |
| 1748 | 2374 int exception_offset = pc - code_begin(); |
| 0 | 2375 int cont_offset = ImplicitExceptionTable(this).at( exception_offset ); |
| 2376 #ifdef ASSERT | |
| 2377 if (cont_offset == 0) { | |
| 2378 Thread* thread = ThreadLocalStorage::get_thread_slow(); | |
| 2379 ResetNoHandleMark rnm; // Might be called from LEAF/QUICK ENTRY | |
| 2380 HandleMark hm(thread); | |
| 2381 ResourceMark rm(thread); | |
| 2382 CodeBlob* cb = CodeCache::find_blob(pc); | |
| 2383 assert(cb != NULL && cb == this, ""); | |
| 2384 tty->print_cr("implicit exception happened at " INTPTR_FORMAT, pc); | |
| 2385 print(); | |
| 2386 method()->print_codes(); | |
| 2387 print_code(); | |
| 2388 print_pcs(); | |
| 2389 } | |
| 2390 #endif | |
| 1250 | 2391 if (cont_offset == 0) { |
| 2392 // Let the normal error handling report the exception | |
| 2393 return NULL; | |
| 2394 } | |
| 1748 | 2395 return code_begin() + cont_offset; |
| 0 | 2396 } |
| 2397 | |
| 2398 | |
| 2399 | |
| 2400 void nmethod_init() { | |
| 2401 // make sure you didn't forget to adjust the filler fields | |
| 2402 assert(sizeof(nmethod) % oopSize == 0, "nmethod size must be multiple of a word"); | |
| 2403 } | |
| 2404 | |
| 2405 | |
| 2406 //------------------------------------------------------------------------------------------- | |
| 2407 | |
| 2408 | |
| 2409 // QQQ might we make this work from a frame?? | |
| 2410 nmethodLocker::nmethodLocker(address pc) { | |
| 2411 CodeBlob* cb = CodeCache::find_blob(pc); | |
| 2412 guarantee(cb != NULL && cb->is_nmethod(), "bad pc for a nmethod found"); | |
| 2413 _nm = (nmethod*)cb; | |
| 2414 lock_nmethod(_nm); | |
| 2415 } | |
| 2416 | |
|
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2417 // Only JvmtiDeferredEvent::compiled_method_unload_event() |
|
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2418 // should pass zombie_ok == true. |
|
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2419 void nmethodLocker::lock_nmethod(nmethod* nm, bool zombie_ok) { |
| 0 | 2420 if (nm == NULL) return; |
| 2421 Atomic::inc(&nm->_lock_count); | |
|
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2422 guarantee(zombie_ok || !nm->is_zombie(), "cannot lock a zombie method"); |
| 0 | 2423 } |
| 2424 | |
| 2425 void nmethodLocker::unlock_nmethod(nmethod* nm) { | |
| 2426 if (nm == NULL) return; | |
| 2427 Atomic::dec(&nm->_lock_count); | |
| 2428 guarantee(nm->_lock_count >= 0, "unmatched nmethod lock/unlock"); | |
| 2429 } | |
| 2430 | |
| 1204 | 2431 |
| 2432 // ----------------------------------------------------------------------------- | |
| 2433 // nmethod::get_deopt_original_pc | |
| 2434 // | |
| 2435 // Return the original PC for the given PC if: | |
| 2436 // (a) the given PC belongs to a nmethod and | |
| 2437 // (b) it is a deopt PC | |
| 2438 address nmethod::get_deopt_original_pc(const frame* fr) { | |
| 2439 if (fr->cb() == NULL) return NULL; | |
| 2440 | |
| 2441 nmethod* nm = fr->cb()->as_nmethod_or_null(); | |
| 2442 if (nm != NULL && nm->is_deopt_pc(fr->pc())) | |
| 2443 return nm->get_original_pc(fr); | |
| 2444 | |
| 2445 return NULL; | |
| 0 | 2446 } |
| 2447 | |
| 2448 | |
| 2449 // ----------------------------------------------------------------------------- | |
|
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2450 // MethodHandle |
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2451 |
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2452 bool nmethod::is_method_handle_return(address return_pc) { |
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2453 if (!has_method_handle_invokes()) return false; |
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2454 PcDesc* pd = pc_desc_at(return_pc); |
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2455 if (pd == NULL) |
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2456 return false; |
|
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2457 return pd->is_method_handle_invoke(); |
|
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2458 } |
|
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|
2459 |
|
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|
2460 |
|
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|
2461 // ----------------------------------------------------------------------------- |
| 0 | 2462 // Verification |
| 2463 | |
|
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|
2464 class VerifyOopsClosure: public OopClosure { |
|
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|
2465 nmethod* _nm; |
|
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|
2466 bool _ok; |
|
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|
2467 public: |
|
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|
2468 VerifyOopsClosure(nmethod* nm) : _nm(nm), _ok(true) { } |
|
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|
2469 bool ok() { return _ok; } |
|
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|
2470 virtual void do_oop(oop* p) { |
|
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|
2471 if ((*p) == NULL || (*p)->is_oop()) return; |
|
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|
2472 if (_ok) { |
|
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|
2473 _nm->print_nmethod(true); |
|
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|
2474 _ok = false; |
|
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|
2475 } |
|
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|
2476 tty->print_cr("*** non-oop "PTR_FORMAT" found at "PTR_FORMAT" (offset %d)", |
|
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190899198332
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|
2477 (void *)(*p), (intptr_t)p, (int)((intptr_t)p - (intptr_t)_nm)); |
|
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|
2478 } |
|
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|
2479 virtual void do_oop(narrowOop* p) { ShouldNotReachHere(); } |
|
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|
2480 }; |
|
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|
2481 |
| 0 | 2482 void nmethod::verify() { |
| 2483 | |
| 2484 // Hmm. OSR methods can be deopted but not marked as zombie or not_entrant | |
| 2485 // seems odd. | |
| 2486 | |
| 2487 if( is_zombie() || is_not_entrant() ) | |
| 2488 return; | |
| 2489 | |
| 2490 // Make sure all the entry points are correctly aligned for patching. | |
| 2491 NativeJump::check_verified_entry_alignment(entry_point(), verified_entry_point()); | |
| 2492 | |
|
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|
2493 // assert(method()->is_oop(), "must be valid"); |
| 0 | 2494 |
| 2495 ResourceMark rm; | |
| 2496 | |
| 2497 if (!CodeCache::contains(this)) { | |
|
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|
2498 fatal(err_msg("nmethod at " INTPTR_FORMAT " not in zone", this)); |
| 0 | 2499 } |
| 2500 | |
| 2501 if(is_native_method() ) | |
| 2502 return; | |
| 2503 | |
| 2504 nmethod* nm = CodeCache::find_nmethod(verified_entry_point()); | |
| 2505 if (nm != this) { | |
|
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|
2506 fatal(err_msg("findNMethod did not find this nmethod (" INTPTR_FORMAT ")", |
|
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|
2507 this)); |
| 0 | 2508 } |
| 2509 | |
| 2510 for (PcDesc* p = scopes_pcs_begin(); p < scopes_pcs_end(); p++) { | |
| 2511 if (! p->verify(this)) { | |
| 2512 tty->print_cr("\t\tin nmethod at " INTPTR_FORMAT " (pcs)", this); | |
| 2513 } | |
| 2514 } | |
| 2515 | |
|
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|
2516 VerifyOopsClosure voc(this); |
|
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|
2517 oops_do(&voc); |
|
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|
2518 assert(voc.ok(), "embedded oops must be OK"); |
|
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|
2519 verify_scavenge_root_oops(); |
|
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|
2520 |
| 0 | 2521 verify_scopes(); |
| 2522 } | |
| 2523 | |
| 2524 | |
| 2525 void nmethod::verify_interrupt_point(address call_site) { | |
|
13071
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8023037: Race between ciEnv::register_method and nmethod::make_not_entrant_or_zombie
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diff
changeset
|
2526 // Verify IC only when nmethod installation is finished. |
| 13441 | 2527 bool is_installed = (method()->code() == this) // nmethod is in state 'in_use' and installed |
| 2528 || !this->is_in_use(); // nmethod is installed, but not in 'in_use' state | |
|
13071
e2509677809c
8023037: Race between ciEnv::register_method and nmethod::make_not_entrant_or_zombie
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diff
changeset
|
2529 if (is_installed) { |
|
e2509677809c
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diff
changeset
|
2530 Thread *cur = Thread::current(); |
|
e2509677809c
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diff
changeset
|
2531 if (CompiledIC_lock->owner() == cur || |
|
e2509677809c
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diff
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|
2532 ((cur->is_VM_thread() || cur->is_ConcurrentGC_thread()) && |
|
e2509677809c
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diff
changeset
|
2533 SafepointSynchronize::is_at_safepoint())) { |
|
e2509677809c
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diff
changeset
|
2534 CompiledIC_at(this, call_site); |
|
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diff
changeset
|
2535 CHECK_UNHANDLED_OOPS_ONLY(Thread::current()->clear_unhandled_oops()); |
|
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diff
changeset
|
2536 } else { |
|
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diff
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|
2537 MutexLocker ml_verify (CompiledIC_lock); |
|
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changeset
|
2538 CompiledIC_at(this, call_site); |
|
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diff
changeset
|
2539 } |
| 0 | 2540 } |
|
13071
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diff
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|
2541 |
|
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|
2542 PcDesc* pd = pc_desc_at(nativeCall_at(call_site)->return_address()); |
| 0 | 2543 assert(pd != NULL, "PcDesc must exist"); |
| 2544 for (ScopeDesc* sd = new ScopeDesc(this, pd->scope_decode_offset(), | |
| 9707 | 2545 pd->obj_decode_offset(), pd->should_reexecute(), pd->rethrow_exception(), |
|
1253
f70b0d9ab095
6910618: C2: Error: assert(d->is_oop(),"JVM_ArrayCopy: dst not an oop")
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1250
diff
changeset
|
2546 pd->return_oop()); |
| 0 | 2547 !sd->is_top(); sd = sd->sender()) { |
| 2548 sd->verify(); | |
| 2549 } | |
| 2550 } | |
| 2551 | |
| 2552 void nmethod::verify_scopes() { | |
| 2553 if( !method() ) return; // Runtime stubs have no scope | |
| 2554 if (method()->is_native()) return; // Ignore stub methods. | |
| 2555 // iterate through all interrupt point | |
| 2556 // and verify the debug information is valid. | |
| 2557 RelocIterator iter((nmethod*)this); | |
| 2558 while (iter.next()) { | |
| 2559 address stub = NULL; | |
| 2560 switch (iter.type()) { | |
| 2561 case relocInfo::virtual_call_type: | |
| 2562 verify_interrupt_point(iter.addr()); | |
| 2563 break; | |
| 2564 case relocInfo::opt_virtual_call_type: | |
| 2565 stub = iter.opt_virtual_call_reloc()->static_stub(); | |
| 2566 verify_interrupt_point(iter.addr()); | |
| 2567 break; | |
| 2568 case relocInfo::static_call_type: | |
| 2569 stub = iter.static_call_reloc()->static_stub(); | |
| 2570 //verify_interrupt_point(iter.addr()); | |
| 2571 break; | |
| 2572 case relocInfo::runtime_call_type: | |
| 2573 address destination = iter.reloc()->value(); | |
| 2574 // Right now there is no way to find out which entries support | |
| 2575 // an interrupt point. It would be nice if we had this | |
| 2576 // information in a table. | |
| 2577 break; | |
| 2578 } | |
| 2579 assert(stub == NULL || stub_contains(stub), "static call stub outside stub section"); | |
| 2580 } | |
| 2581 } | |
| 2582 | |
| 2583 | |
| 2584 // ----------------------------------------------------------------------------- | |
| 2585 // Non-product code | |
| 2586 #ifndef PRODUCT | |
| 2587 | |
|
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|
2588 class DebugScavengeRoot: public OopClosure { |
|
148e5441d916
6863023: need non-perm oops in code cache for JSR 292
jrose
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931
diff
changeset
|
2589 nmethod* _nm; |
|
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931
diff
changeset
|
2590 bool _ok; |
|
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diff
changeset
|
2591 public: |
|
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6863023: need non-perm oops in code cache for JSR 292
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931
diff
changeset
|
2592 DebugScavengeRoot(nmethod* nm) : _nm(nm), _ok(true) { } |
|
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diff
changeset
|
2593 bool ok() { return _ok; } |
|
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diff
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|
2594 virtual void do_oop(oop* p) { |
|
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6863023: need non-perm oops in code cache for JSR 292
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diff
changeset
|
2595 if ((*p) == NULL || !(*p)->is_scavengable()) return; |
|
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jrose
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931
diff
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|
2596 if (_ok) { |
|
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931
diff
changeset
|
2597 _nm->print_nmethod(true); |
|
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6863023: need non-perm oops in code cache for JSR 292
jrose
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931
diff
changeset
|
2598 _ok = false; |
|
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jrose
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931
diff
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|
2599 } |
|
3377
2aa9ddbb9e60
7041789: 30% perf regression with c2/arm following 7017732
jmasa
parents:
2405
diff
changeset
|
2600 tty->print_cr("*** scavengable oop "PTR_FORMAT" found at "PTR_FORMAT" (offset %d)", |
|
12316
190899198332
7195622: CheckUnhandledOops has limited usefulness now
hseigel
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12175
diff
changeset
|
2601 (void *)(*p), (intptr_t)p, (int)((intptr_t)p - (intptr_t)_nm)); |
|
989
148e5441d916
6863023: need non-perm oops in code cache for JSR 292
jrose
parents:
931
diff
changeset
|
2602 (*p)->print(); |
|
148e5441d916
6863023: need non-perm oops in code cache for JSR 292
jrose
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931
diff
changeset
|
2603 } |
|
148e5441d916
6863023: need non-perm oops in code cache for JSR 292
jrose
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931
diff
changeset
|
2604 virtual void do_oop(narrowOop* p) { ShouldNotReachHere(); } |
|
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jrose
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931
diff
changeset
|
2605 }; |
| 0 | 2606 |
|
989
148e5441d916
6863023: need non-perm oops in code cache for JSR 292
jrose
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931
diff
changeset
|
2607 void nmethod::verify_scavenge_root_oops() { |
|
148e5441d916
6863023: need non-perm oops in code cache for JSR 292
jrose
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931
diff
changeset
|
2608 if (!on_scavenge_root_list()) { |
|
148e5441d916
6863023: need non-perm oops in code cache for JSR 292
jrose
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931
diff
changeset
|
2609 // Actually look inside, to verify the claim that it's clean. |
|
148e5441d916
6863023: need non-perm oops in code cache for JSR 292
jrose
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931
diff
changeset
|
2610 DebugScavengeRoot debug_scavenge_root(this); |
|
148e5441d916
6863023: need non-perm oops in code cache for JSR 292
jrose
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931
diff
changeset
|
2611 oops_do(&debug_scavenge_root); |
|
148e5441d916
6863023: need non-perm oops in code cache for JSR 292
jrose
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931
diff
changeset
|
2612 if (!debug_scavenge_root.ok()) |
|
3377
2aa9ddbb9e60
7041789: 30% perf regression with c2/arm following 7017732
jmasa
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2405
diff
changeset
|
2613 fatal("found an unadvertised bad scavengable oop in the code cache"); |
| 0 | 2614 } |
|
989
148e5441d916
6863023: need non-perm oops in code cache for JSR 292
jrose
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931
diff
changeset
|
2615 assert(scavenge_root_not_marked(), ""); |
| 0 | 2616 } |
| 2617 | |
|
100
c7c777385a15
6667042: PrintAssembly option does not work without special plugin
jrose
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30
diff
changeset
|
2618 #endif // PRODUCT |
| 0 | 2619 |
| 2620 // Printing operations | |
| 2621 | |
| 2622 void nmethod::print() const { | |
| 2623 ResourceMark rm; | |
| 2624 ttyLocker ttyl; // keep the following output all in one block | |
| 2625 | |
|
2405
3d58a4983660
7022998: JSR 292 recursive method handle calls inline themselves infinitely
twisti
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2376
diff
changeset
|
2626 tty->print("Compiled method "); |
| 0 | 2627 |
| 2628 if (is_compiled_by_c1()) { | |
| 2629 tty->print("(c1) "); | |
| 2630 } else if (is_compiled_by_c2()) { | |
| 2631 tty->print("(c2) "); | |
| 1692 | 2632 } else if (is_compiled_by_shark()) { |
| 2633 tty->print("(shark) "); | |
| 9707 | 2634 } else if (is_compiled_by_graal()) { |
| 2635 tty->print("(Graal) "); | |
| 0 | 2636 } else { |
| 2637 tty->print("(nm) "); | |
| 2638 } | |
| 2639 | |
|
2405
3d58a4983660
7022998: JSR 292 recursive method handle calls inline themselves infinitely
twisti
parents:
2376
diff
changeset
|
2640 print_on(tty, NULL); |
|
3d58a4983660
7022998: JSR 292 recursive method handle calls inline themselves infinitely
twisti
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2376
diff
changeset
|
2641 |
| 0 | 2642 if (WizardMode) { |
| 2643 tty->print("((nmethod*) "INTPTR_FORMAT ") ", this); | |
| 2644 tty->print(" for method " INTPTR_FORMAT , (address)method()); | |
| 2645 tty->print(" { "); | |
| 2646 if (is_in_use()) tty->print("in_use "); | |
| 2647 if (is_not_entrant()) tty->print("not_entrant "); | |
| 2648 if (is_zombie()) tty->print("zombie "); | |
| 2649 if (is_unloaded()) tty->print("unloaded "); | |
|
989
148e5441d916
6863023: need non-perm oops in code cache for JSR 292
jrose
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931
diff
changeset
|
2650 if (on_scavenge_root_list()) tty->print("scavenge_root "); |
| 0 | 2651 tty->print_cr("}:"); |
| 2652 } | |
| 2653 if (size () > 0) tty->print_cr(" total in heap [" INTPTR_FORMAT "," INTPTR_FORMAT "] = %d", | |
| 2654 (address)this, | |
| 2655 (address)this + size(), | |
| 2656 size()); | |
| 2657 if (relocation_size () > 0) tty->print_cr(" relocation [" INTPTR_FORMAT "," INTPTR_FORMAT "] = %d", | |
| 2658 relocation_begin(), | |
| 2659 relocation_end(), | |
| 2660 relocation_size()); | |
|
1762
0878d7bae69f
6961697: move nmethod constants section before instruction section
twisti
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1748
diff
changeset
|
2661 if (consts_size () > 0) tty->print_cr(" constants [" INTPTR_FORMAT "," INTPTR_FORMAT "] = %d", |
|
0878d7bae69f
6961697: move nmethod constants section before instruction section
twisti
parents:
1748
diff
changeset
|
2662 consts_begin(), |
|
0878d7bae69f
6961697: move nmethod constants section before instruction section
twisti
parents:
1748
diff
changeset
|
2663 consts_end(), |
|
0878d7bae69f
6961697: move nmethod constants section before instruction section
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1748
diff
changeset
|
2664 consts_size()); |
| 1748 | 2665 if (insts_size () > 0) tty->print_cr(" main code [" INTPTR_FORMAT "," INTPTR_FORMAT "] = %d", |
| 2666 insts_begin(), | |
| 2667 insts_end(), | |
| 2668 insts_size()); | |
| 0 | 2669 if (stub_size () > 0) tty->print_cr(" stub code [" INTPTR_FORMAT "," INTPTR_FORMAT "] = %d", |
| 2670 stub_begin(), | |
| 2671 stub_end(), | |
| 2672 stub_size()); | |
|
1563
1a5913bf5e19
6951083: oops and relocations should part of nmethod not CodeBlob
twisti
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1538
diff
changeset
|
2673 if (oops_size () > 0) tty->print_cr(" oops [" INTPTR_FORMAT "," INTPTR_FORMAT "] = %d", |
|
1a5913bf5e19
6951083: oops and relocations should part of nmethod not CodeBlob
twisti
parents:
1538
diff
changeset
|
2674 oops_begin(), |
|
1a5913bf5e19
6951083: oops and relocations should part of nmethod not CodeBlob
twisti
parents:
1538
diff
changeset
|
2675 oops_end(), |
|
1a5913bf5e19
6951083: oops and relocations should part of nmethod not CodeBlob
twisti
parents:
1538
diff
changeset
|
2676 oops_size()); |
|
6725
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coleenp
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6266
diff
changeset
|
2677 if (metadata_size () > 0) tty->print_cr(" metadata [" INTPTR_FORMAT "," INTPTR_FORMAT "] = %d", |
|
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6964458: Reimplement class meta-data storage to use native memory
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|
2678 metadata_begin(), |
|
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changeset
|
2679 metadata_end(), |
|
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|
2680 metadata_size()); |
| 0 | 2681 if (scopes_data_size () > 0) tty->print_cr(" scopes data [" INTPTR_FORMAT "," INTPTR_FORMAT "] = %d", |
| 2682 scopes_data_begin(), | |
| 2683 scopes_data_end(), | |
| 2684 scopes_data_size()); | |
| 2685 if (scopes_pcs_size () > 0) tty->print_cr(" scopes pcs [" INTPTR_FORMAT "," INTPTR_FORMAT "] = %d", | |
| 2686 scopes_pcs_begin(), | |
| 2687 scopes_pcs_end(), | |
| 2688 scopes_pcs_size()); | |
| 2689 if (dependencies_size () > 0) tty->print_cr(" dependencies [" INTPTR_FORMAT "," INTPTR_FORMAT "] = %d", | |
| 2690 dependencies_begin(), | |
| 2691 dependencies_end(), | |
| 2692 dependencies_size()); | |
| 2693 if (handler_table_size() > 0) tty->print_cr(" handler table [" INTPTR_FORMAT "," INTPTR_FORMAT "] = %d", | |
| 2694 handler_table_begin(), | |
| 2695 handler_table_end(), | |
| 2696 handler_table_size()); | |
| 2697 if (nul_chk_table_size() > 0) tty->print_cr(" nul chk table [" INTPTR_FORMAT "," INTPTR_FORMAT "] = %d", | |
| 2698 nul_chk_table_begin(), | |
| 2699 nul_chk_table_end(), | |
| 2700 nul_chk_table_size()); | |
| 2701 } | |
| 2702 | |
|
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|
2703 void nmethod::print_code() { |
|
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diff
changeset
|
2704 HandleMark hm; |
|
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diff
changeset
|
2705 ResourceMark m; |
|
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diff
changeset
|
2706 Disassembler::decode(this); |
|
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diff
changeset
|
2707 } |
|
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|
2708 |
|
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|
2709 |
|
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|
2710 #ifndef PRODUCT |
| 0 | 2711 |
| 2712 void nmethod::print_scopes() { | |
| 2713 // Find the first pc desc for all scopes in the code and print it. | |
| 2714 ResourceMark rm; | |
| 2715 for (PcDesc* p = scopes_pcs_begin(); p < scopes_pcs_end(); p++) { | |
| 2716 if (p->scope_decode_offset() == DebugInformationRecorder::serialized_null) | |
| 2717 continue; | |
| 2718 | |
| 2719 ScopeDesc* sd = scope_desc_at(p->real_pc(this)); | |
| 2720 sd->print_on(tty, p); | |
| 2721 } | |
| 2722 } | |
| 2723 | |
| 2724 void nmethod::print_dependencies() { | |
| 2725 ResourceMark rm; | |
| 2726 ttyLocker ttyl; // keep the following output all in one block | |
| 2727 tty->print_cr("Dependencies:"); | |
| 2728 for (Dependencies::DepStream deps(this); deps.next(); ) { | |
| 2729 deps.print_dependency(); | |
|
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|
2730 Klass* ctxk = deps.context_type(); |
| 0 | 2731 if (ctxk != NULL) { |
| 6983 | 2732 if (ctxk->oop_is_instance() && ((InstanceKlass*)ctxk)->is_dependent_nmethod(this)) { |
| 2733 tty->print_cr(" [nmethod<=klass]%s", ctxk->external_name()); | |
| 0 | 2734 } |
| 2735 } | |
| 2736 deps.log_dependency(); // put it into the xml log also | |
| 2737 } | |
| 2738 } | |
| 2739 | |
| 2740 | |
| 2741 void nmethod::print_relocations() { | |
| 2742 ResourceMark m; // in case methods get printed via the debugger | |
| 2743 tty->print_cr("relocations:"); | |
| 2744 RelocIterator iter(this); | |
| 2745 iter.print(); | |
| 2746 if (UseRelocIndex) { | |
| 2747 jint* index_end = (jint*)relocation_end() - 1; | |
| 2748 jint index_size = *index_end; | |
| 2749 jint* index_start = (jint*)( (address)index_end - index_size ); | |
| 2750 tty->print_cr(" index @" INTPTR_FORMAT ": index_size=%d", index_start, index_size); | |
| 2751 if (index_size > 0) { | |
| 2752 jint* ip; | |
| 2753 for (ip = index_start; ip+2 <= index_end; ip += 2) | |
| 2754 tty->print_cr(" (%d %d) addr=" INTPTR_FORMAT " @" INTPTR_FORMAT, | |
| 2755 ip[0], | |
| 2756 ip[1], | |
| 2757 header_end()+ip[0], | |
| 2758 relocation_begin()-1+ip[1]); | |
| 2759 for (; ip < index_end; ip++) | |
| 2760 tty->print_cr(" (%d ?)", ip[0]); | |
|
10973
ef57c43512d6
8014431: cleanup warnings indicated by the -Wunused-value compiler option on linux
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diff
changeset
|
2761 tty->print_cr(" @" INTPTR_FORMAT ": index_size=%d", ip, *ip); |
|
ef57c43512d6
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diff
changeset
|
2762 ip++; |
| 0 | 2763 tty->print_cr("reloc_end @" INTPTR_FORMAT ":", ip); |
| 2764 } | |
| 2765 } | |
| 2766 } | |
| 2767 | |
| 2768 | |
| 2769 void nmethod::print_pcs() { | |
| 2770 ResourceMark m; // in case methods get printed via debugger | |
| 2771 tty->print_cr("pc-bytecode offsets:"); | |
| 2772 for (PcDesc* p = scopes_pcs_begin(); p < scopes_pcs_end(); p++) { | |
| 2773 p->print(this); | |
| 2774 } | |
| 2775 } | |
| 2776 | |
|
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|
2777 #endif // PRODUCT |
| 0 | 2778 |
| 2779 const char* nmethod::reloc_string_for(u_char* begin, u_char* end) { | |
| 2780 RelocIterator iter(this, begin, end); | |
| 2781 bool have_one = false; | |
| 2782 while (iter.next()) { | |
| 2783 have_one = true; | |
| 2784 switch (iter.type()) { | |
| 2785 case relocInfo::none: return "no_reloc"; | |
| 2786 case relocInfo::oop_type: { | |
| 2787 stringStream st; | |
| 2788 oop_Relocation* r = iter.oop_reloc(); | |
| 2789 oop obj = r->oop_value(); | |
| 2790 st.print("oop("); | |
| 2791 if (obj == NULL) st.print("NULL"); | |
| 2792 else obj->print_value_on(&st); | |
| 2793 st.print(")"); | |
| 2794 return st.as_string(); | |
| 2795 } | |
|
6725
da91efe96a93
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diff
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|
2796 case relocInfo::metadata_type: { |
|
da91efe96a93
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diff
changeset
|
2797 stringStream st; |
|
da91efe96a93
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diff
changeset
|
2798 metadata_Relocation* r = iter.metadata_reloc(); |
|
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
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diff
changeset
|
2799 Metadata* obj = r->metadata_value(); |
|
da91efe96a93
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diff
changeset
|
2800 st.print("metadata("); |
|
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
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6266
diff
changeset
|
2801 if (obj == NULL) st.print("NULL"); |
|
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
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6266
diff
changeset
|
2802 else obj->print_value_on(&st); |
|
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
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6266
diff
changeset
|
2803 st.print(")"); |
|
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
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6266
diff
changeset
|
2804 return st.as_string(); |
|
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
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diff
changeset
|
2805 } |
| 0 | 2806 case relocInfo::virtual_call_type: return "virtual_call"; |
| 2807 case relocInfo::opt_virtual_call_type: return "optimized virtual_call"; | |
| 2808 case relocInfo::static_call_type: return "static_call"; | |
| 2809 case relocInfo::static_stub_type: return "static_stub"; | |
| 2810 case relocInfo::runtime_call_type: return "runtime_call"; | |
| 2811 case relocInfo::external_word_type: return "external_word"; | |
| 2812 case relocInfo::internal_word_type: return "internal_word"; | |
| 2813 case relocInfo::section_word_type: return "section_word"; | |
| 2814 case relocInfo::poll_type: return "poll"; | |
| 2815 case relocInfo::poll_return_type: return "poll_return"; | |
| 2816 case relocInfo::type_mask: return "type_bit_mask"; | |
| 2817 } | |
| 2818 } | |
| 2819 return have_one ? "other" : NULL; | |
| 2820 } | |
| 2821 | |
| 2822 // Return a the last scope in (begin..end] | |
| 2823 ScopeDesc* nmethod::scope_desc_in(address begin, address end) { | |
| 2824 PcDesc* p = pc_desc_near(begin+1); | |
| 2825 if (p != NULL && p->real_pc(this) <= end) { | |
| 2826 return new ScopeDesc(this, p->scope_decode_offset(), | |
| 9707 | 2827 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
|
2828 p->return_oop()); |
| 0 | 2829 } |
| 2830 return NULL; | |
| 2831 } | |
| 2832 | |
|
6796
b31471cdc53e
7200163: add CodeComments functionality to assember stubs
kvn
parents:
6792
diff
changeset
|
2833 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
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1141
diff
changeset
|
2834 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
|
2835 if (block_begin == verified_entry_point()) stream->print_cr("[Verified Entry Point]"); |
| 9707 | 2836 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
|
2837 if (block_begin == stub_begin()) stream->print_cr("[Stub Code]"); |
| 9707 | 2838 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
|
2839 |
|
4a665be40fd3
6975855: don't emit deopt MH handler in C1 if not required
twisti
parents:
1644
diff
changeset
|
2840 if (has_method_handle_invokes()) |
|
4a665be40fd3
6975855: don't emit deopt MH handler in C1 if not required
twisti
parents:
1644
diff
changeset
|
2841 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
|
2842 |
|
1155
4e6abf09f540
6912062: disassembler plugin needs to produce symbolic information in product mode
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parents:
1141
diff
changeset
|
2843 if (block_begin == consts_begin()) stream->print_cr("[Constants]"); |
|
1691
4a665be40fd3
6975855: don't emit deopt MH handler in C1 if not required
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parents:
1644
diff
changeset
|
2844 |
|
1155
4e6abf09f540
6912062: disassembler plugin needs to produce symbolic information in product mode
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1141
diff
changeset
|
2845 if (block_begin == entry_point()) { |
|
4e6abf09f540
6912062: disassembler plugin needs to produce symbolic information in product mode
jrose
parents:
1141
diff
changeset
|
2846 methodHandle m = method(); |
|
4e6abf09f540
6912062: disassembler plugin needs to produce symbolic information in product mode
jrose
parents:
1141
diff
changeset
|
2847 if (m.not_null()) { |
|
4e6abf09f540
6912062: disassembler plugin needs to produce symbolic information in product mode
jrose
parents:
1141
diff
changeset
|
2848 stream->print(" # "); |
|
4e6abf09f540
6912062: disassembler plugin needs to produce symbolic information in product mode
jrose
parents:
1141
diff
changeset
|
2849 m->print_value_on(stream); |
|
4e6abf09f540
6912062: disassembler plugin needs to produce symbolic information in product mode
jrose
parents:
1141
diff
changeset
|
2850 stream->cr(); |
|
4e6abf09f540
6912062: disassembler plugin needs to produce symbolic information in product mode
jrose
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1141
diff
changeset
|
2851 } |
|
4e6abf09f540
6912062: disassembler plugin needs to produce symbolic information in product mode
jrose
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1141
diff
changeset
|
2852 if (m.not_null() && !is_osr_method()) { |
|
4e6abf09f540
6912062: disassembler plugin needs to produce symbolic information in product mode
jrose
parents:
1141
diff
changeset
|
2853 ResourceMark rm; |
|
4e6abf09f540
6912062: disassembler plugin needs to produce symbolic information in product mode
jrose
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1141
diff
changeset
|
2854 int sizeargs = m->size_of_parameters(); |
|
4e6abf09f540
6912062: disassembler plugin needs to produce symbolic information in product mode
jrose
parents:
1141
diff
changeset
|
2855 BasicType* sig_bt = NEW_RESOURCE_ARRAY(BasicType, sizeargs); |
|
4e6abf09f540
6912062: disassembler plugin needs to produce symbolic information in product mode
jrose
parents:
1141
diff
changeset
|
2856 VMRegPair* regs = NEW_RESOURCE_ARRAY(VMRegPair, sizeargs); |
|
4e6abf09f540
6912062: disassembler plugin needs to produce symbolic information in product mode
jrose
parents:
1141
diff
changeset
|
2857 { |
|
4e6abf09f540
6912062: disassembler plugin needs to produce symbolic information in product mode
jrose
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1141
diff
changeset
|
2858 int sig_index = 0; |
|
4e6abf09f540
6912062: disassembler plugin needs to produce symbolic information in product mode
jrose
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1141
diff
changeset
|
2859 if (!m->is_static()) |
|
4e6abf09f540
6912062: disassembler plugin needs to produce symbolic information in product mode
jrose
parents:
1141
diff
changeset
|
2860 sig_bt[sig_index++] = T_OBJECT; // 'this' |
|
4e6abf09f540
6912062: disassembler plugin needs to produce symbolic information in product mode
jrose
parents:
1141
diff
changeset
|
2861 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
|
2862 BasicType t = ss.type(); |
|
4e6abf09f540
6912062: disassembler plugin needs to produce symbolic information in product mode
jrose
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1141
diff
changeset
|
2863 sig_bt[sig_index++] = t; |
|
4e6abf09f540
6912062: disassembler plugin needs to produce symbolic information in product mode
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parents:
1141
diff
changeset
|
2864 if (type2size[t] == 2) { |
|
4e6abf09f540
6912062: disassembler plugin needs to produce symbolic information in product mode
jrose
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1141
diff
changeset
|
2865 sig_bt[sig_index++] = T_VOID; |
|
4e6abf09f540
6912062: disassembler plugin needs to produce symbolic information in product mode
jrose
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1141
diff
changeset
|
2866 } else { |
|
4e6abf09f540
6912062: disassembler plugin needs to produce symbolic information in product mode
jrose
parents:
1141
diff
changeset
|
2867 assert(type2size[t] == 1, "size is 1 or 2"); |
|
4e6abf09f540
6912062: disassembler plugin needs to produce symbolic information in product mode
jrose
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1141
diff
changeset
|
2868 } |
|
4e6abf09f540
6912062: disassembler plugin needs to produce symbolic information in product mode
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1141
diff
changeset
|
2869 } |
|
4e6abf09f540
6912062: disassembler plugin needs to produce symbolic information in product mode
jrose
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1141
diff
changeset
|
2870 assert(sig_index == sizeargs, ""); |
|
4e6abf09f540
6912062: disassembler plugin needs to produce symbolic information in product mode
jrose
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1141
diff
changeset
|
2871 } |
|
4e6abf09f540
6912062: disassembler plugin needs to produce symbolic information in product mode
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1141
diff
changeset
|
2872 const char* spname = "sp"; // make arch-specific? |
|
4e6abf09f540
6912062: disassembler plugin needs to produce symbolic information in product mode
jrose
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1141
diff
changeset
|
2873 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
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1141
diff
changeset
|
2874 int stack_slot_offset = this->frame_size() * wordSize; |
|
4e6abf09f540
6912062: disassembler plugin needs to produce symbolic information in product mode
jrose
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1141
diff
changeset
|
2875 int tab1 = 14, tab2 = 24; |
|
4e6abf09f540
6912062: disassembler plugin needs to produce symbolic information in product mode
jrose
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1141
diff
changeset
|
2876 int sig_index = 0; |
|
4e6abf09f540
6912062: disassembler plugin needs to produce symbolic information in product mode
jrose
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1141
diff
changeset
|
2877 int arg_index = (m->is_static() ? 0 : -1); |
|
4e6abf09f540
6912062: disassembler plugin needs to produce symbolic information in product mode
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1141
diff
changeset
|
2878 bool did_old_sp = false; |
|
4e6abf09f540
6912062: disassembler plugin needs to produce symbolic information in product mode
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diff
changeset
|
2879 for (SignatureStream ss(m->signature()); !ss.at_return_type(); ) { |
|
4e6abf09f540
6912062: disassembler plugin needs to produce symbolic information in product mode
jrose
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1141
diff
changeset
|
2880 bool at_this = (arg_index == -1); |
|
4e6abf09f540
6912062: disassembler plugin needs to produce symbolic information in product mode
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1141
diff
changeset
|
2881 bool at_old_sp = false; |
|
4e6abf09f540
6912062: disassembler plugin needs to produce symbolic information in product mode
jrose
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1141
diff
changeset
|
2882 BasicType t = (at_this ? T_OBJECT : ss.type()); |
|
4e6abf09f540
6912062: disassembler plugin needs to produce symbolic information in product mode
jrose
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1141
diff
changeset
|
2883 assert(t == sig_bt[sig_index], "sigs in sync"); |
|
4e6abf09f540
6912062: disassembler plugin needs to produce symbolic information in product mode
jrose
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1141
diff
changeset
|
2884 if (at_this) |
|
4e6abf09f540
6912062: disassembler plugin needs to produce symbolic information in product mode
jrose
parents:
1141
diff
changeset
|
2885 stream->print(" # this: "); |
|
4e6abf09f540
6912062: disassembler plugin needs to produce symbolic information in product mode
jrose
parents:
1141
diff
changeset
|
2886 else |
|
4e6abf09f540
6912062: disassembler plugin needs to produce symbolic information in product mode
jrose
parents:
1141
diff
changeset
|
2887 stream->print(" # parm%d: ", arg_index); |
|
4e6abf09f540
6912062: disassembler plugin needs to produce symbolic information in product mode
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parents:
1141
diff
changeset
|
2888 stream->move_to(tab1); |
|
4e6abf09f540
6912062: disassembler plugin needs to produce symbolic information in product mode
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parents:
1141
diff
changeset
|
2889 VMReg fst = regs[sig_index].first(); |
|
4e6abf09f540
6912062: disassembler plugin needs to produce symbolic information in product mode
jrose
parents:
1141
diff
changeset
|
2890 VMReg snd = regs[sig_index].second(); |
|
4e6abf09f540
6912062: disassembler plugin needs to produce symbolic information in product mode
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1141
diff
changeset
|
2891 if (fst->is_reg()) { |
|
4e6abf09f540
6912062: disassembler plugin needs to produce symbolic information in product mode
jrose
parents:
1141
diff
changeset
|
2892 stream->print("%s", fst->name()); |
|
4e6abf09f540
6912062: disassembler plugin needs to produce symbolic information in product mode
jrose
parents:
1141
diff
changeset
|
2893 if (snd->is_valid()) { |
|
4e6abf09f540
6912062: disassembler plugin needs to produce symbolic information in product mode
jrose
parents:
1141
diff
changeset
|
2894 stream->print(":%s", snd->name()); |
|
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 } else if (fst->is_stack()) { |
|
4e6abf09f540
6912062: disassembler plugin needs to produce symbolic information in product mode
jrose
parents:
1141
diff
changeset
|
2897 int offset = fst->reg2stack() * VMRegImpl::stack_slot_size + stack_slot_offset; |
|
4e6abf09f540
6912062: disassembler plugin needs to produce symbolic information in product mode
jrose
parents:
1141
diff
changeset
|
2898 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
|
2899 stream->print("[%s+0x%x]", spname, offset); |
|
4e6abf09f540
6912062: disassembler plugin needs to produce symbolic information in product mode
jrose
parents:
1141
diff
changeset
|
2900 } else { |
|
4e6abf09f540
6912062: disassembler plugin needs to produce symbolic information in product mode
jrose
parents:
1141
diff
changeset
|
2901 stream->print("reg%d:%d??", (int)(intptr_t)fst, (int)(intptr_t)snd); |
|
4e6abf09f540
6912062: disassembler plugin needs to produce symbolic information in product mode
jrose
parents:
1141
diff
changeset
|
2902 } |
|
4e6abf09f540
6912062: disassembler plugin needs to produce symbolic information in product mode
jrose
parents:
1141
diff
changeset
|
2903 stream->print(" "); |
|
4e6abf09f540
6912062: disassembler plugin needs to produce symbolic information in product mode
jrose
parents:
1141
diff
changeset
|
2904 stream->move_to(tab2); |
|
4e6abf09f540
6912062: disassembler plugin needs to produce symbolic information in product mode
jrose
parents:
1141
diff
changeset
|
2905 stream->print("= "); |
|
4e6abf09f540
6912062: disassembler plugin needs to produce symbolic information in product mode
jrose
parents:
1141
diff
changeset
|
2906 if (at_this) { |
|
4e6abf09f540
6912062: disassembler plugin needs to produce symbolic information in product mode
jrose
parents:
1141
diff
changeset
|
2907 m->method_holder()->print_value_on(stream); |
|
4e6abf09f540
6912062: disassembler plugin needs to produce symbolic information in product mode
jrose
parents:
1141
diff
changeset
|
2908 } else { |
|
4e6abf09f540
6912062: disassembler plugin needs to produce symbolic information in product mode
jrose
parents:
1141
diff
changeset
|
2909 bool did_name = false; |
|
4e6abf09f540
6912062: disassembler plugin needs to produce symbolic information in product mode
jrose
parents:
1141
diff
changeset
|
2910 if (!at_this && ss.is_object()) { |
|
2177
3582bf76420e
6990754: Use native memory and reference counting to implement SymbolTable
coleenp
parents:
2142
diff
changeset
|
2911 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
|
2912 if (name != NULL) { |
|
4e6abf09f540
6912062: disassembler plugin needs to produce symbolic information in product mode
jrose
parents:
1141
diff
changeset
|
2913 name->print_value_on(stream); |
|
4e6abf09f540
6912062: disassembler plugin needs to produce symbolic information in product mode
jrose
parents:
1141
diff
changeset
|
2914 did_name = true; |
|
4e6abf09f540
6912062: disassembler plugin needs to produce symbolic information in product mode
jrose
parents:
1141
diff
changeset
|
2915 } |
|
4e6abf09f540
6912062: disassembler plugin needs to produce symbolic information in product mode
jrose
parents:
1141
diff
changeset
|
2916 } |
|
4e6abf09f540
6912062: disassembler plugin needs to produce symbolic information in product mode
jrose
parents:
1141
diff
changeset
|
2917 if (!did_name) |
|
4e6abf09f540
6912062: disassembler plugin needs to produce symbolic information in product mode
jrose
parents:
1141
diff
changeset
|
2918 stream->print("%s", type2name(t)); |
|
4e6abf09f540
6912062: disassembler plugin needs to produce symbolic information in product mode
jrose
parents:
1141
diff
changeset
|
2919 } |
|
4e6abf09f540
6912062: disassembler plugin needs to produce symbolic information in product mode
jrose
parents:
1141
diff
changeset
|
2920 if (at_old_sp) { |
|
4e6abf09f540
6912062: disassembler plugin needs to produce symbolic information in product mode
jrose
parents:
1141
diff
changeset
|
2921 stream->print(" (%s of caller)", spname); |
|
4e6abf09f540
6912062: disassembler plugin needs to produce symbolic information in product mode
jrose
parents:
1141
diff
changeset
|
2922 did_old_sp = true; |
|
4e6abf09f540
6912062: disassembler plugin needs to produce symbolic information in product mode
jrose
parents:
1141
diff
changeset
|
2923 } |
|
4e6abf09f540
6912062: disassembler plugin needs to produce symbolic information in product mode
jrose
parents:
1141
diff
changeset
|
2924 stream->cr(); |
|
4e6abf09f540
6912062: disassembler plugin needs to produce symbolic information in product mode
jrose
parents:
1141
diff
changeset
|
2925 sig_index += type2size[t]; |
|
4e6abf09f540
6912062: disassembler plugin needs to produce symbolic information in product mode
jrose
parents:
1141
diff
changeset
|
2926 arg_index += 1; |
|
4e6abf09f540
6912062: disassembler plugin needs to produce symbolic information in product mode
jrose
parents:
1141
diff
changeset
|
2927 if (!at_this) ss.next(); |
|
4e6abf09f540
6912062: disassembler plugin needs to produce symbolic information in product mode
jrose
parents:
1141
diff
changeset
|
2928 } |
|
4e6abf09f540
6912062: disassembler plugin needs to produce symbolic information in product mode
jrose
parents:
1141
diff
changeset
|
2929 if (!did_old_sp) { |
|
4e6abf09f540
6912062: disassembler plugin needs to produce symbolic information in product mode
jrose
parents:
1141
diff
changeset
|
2930 stream->print(" # "); |
|
4e6abf09f540
6912062: disassembler plugin needs to produce symbolic information in product mode
jrose
parents:
1141
diff
changeset
|
2931 stream->move_to(tab1); |
|
4e6abf09f540
6912062: disassembler plugin needs to produce symbolic information in product mode
jrose
parents:
1141
diff
changeset
|
2932 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
|
2933 stream->print(" (%s of caller)", spname); |
|
4e6abf09f540
6912062: disassembler plugin needs to produce symbolic information in product mode
jrose
parents:
1141
diff
changeset
|
2934 stream->cr(); |
|
4e6abf09f540
6912062: disassembler plugin needs to produce symbolic information in product mode
jrose
parents:
1141
diff
changeset
|
2935 } |
|
4e6abf09f540
6912062: disassembler plugin needs to produce symbolic information in product mode
jrose
parents:
1141
diff
changeset
|
2936 } |
|
4e6abf09f540
6912062: disassembler plugin needs to produce symbolic information in product mode
jrose
parents:
1141
diff
changeset
|
2937 } |
|
4e6abf09f540
6912062: disassembler plugin needs to produce symbolic information in product mode
jrose
parents:
1141
diff
changeset
|
2938 } |
|
4e6abf09f540
6912062: disassembler plugin needs to produce symbolic information in product mode
jrose
parents:
1141
diff
changeset
|
2939 |
| 0 | 2940 void nmethod::print_code_comment_on(outputStream* st, int column, u_char* begin, u_char* end) { |
| 2941 // First, find an oopmap in (begin, end]. | |
| 2942 // We use the odd half-closed interval so that oop maps and scope descs | |
| 2943 // which are tied to the byte after a call are printed with the call itself. | |
| 1748 | 2944 address base = code_begin(); |
| 0 | 2945 OopMapSet* oms = oop_maps(); |
| 2946 if (oms != NULL) { | |
| 2947 for (int i = 0, imax = oms->size(); i < imax; i++) { | |
| 2948 OopMap* om = oms->at(i); | |
| 2949 address pc = base + om->offset(); | |
| 2950 if (pc > begin) { | |
| 2951 if (pc <= end) { | |
|
100
c7c777385a15
6667042: PrintAssembly option does not work without special plugin
jrose
parents:
30
diff
changeset
|
2952 st->move_to(column); |
|
c7c777385a15
6667042: PrintAssembly option does not work without special plugin
jrose
parents:
30
diff
changeset
|
2953 st->print("; "); |
|
c7c777385a15
6667042: PrintAssembly option does not work without special plugin
jrose
parents:
30
diff
changeset
|
2954 om->print_on(st); |
| 0 | 2955 } |
| 2956 break; | |
| 2957 } | |
| 2958 } | |
| 2959 } | |
|
100
c7c777385a15
6667042: PrintAssembly option does not work without special plugin
jrose
parents:
30
diff
changeset
|
2960 |
|
c7c777385a15
6667042: PrintAssembly option does not work without special plugin
jrose
parents:
30
diff
changeset
|
2961 // Print any debug info present at this pc. |
| 0 | 2962 ScopeDesc* sd = scope_desc_in(begin, end); |
| 2963 if (sd != NULL) { | |
|
100
c7c777385a15
6667042: PrintAssembly option does not work without special plugin
jrose
parents:
30
diff
changeset
|
2964 st->move_to(column); |
| 0 | 2965 if (sd->bci() == SynchronizationEntryBCI) { |
| 2966 st->print(";*synchronization entry"); | |
| 2967 } else { | |
|
6725
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6266
diff
changeset
|
2968 if (sd->method() == NULL) { |
|
100
c7c777385a15
6667042: PrintAssembly option does not work without special plugin
jrose
parents:
30
diff
changeset
|
2969 st->print("method is NULL"); |
| 0 | 2970 } else if (sd->method()->is_native()) { |
|
100
c7c777385a15
6667042: PrintAssembly option does not work without special plugin
jrose
parents:
30
diff
changeset
|
2971 st->print("method is native"); |
| 0 | 2972 } else { |
| 2142 | 2973 Bytecodes::Code bc = sd->method()->java_code_at(sd->bci()); |
| 0 | 2974 st->print(";*%s", Bytecodes::name(bc)); |
| 2975 switch (bc) { | |
| 2976 case Bytecodes::_invokevirtual: | |
| 2977 case Bytecodes::_invokespecial: | |
| 2978 case Bytecodes::_invokestatic: | |
| 2979 case Bytecodes::_invokeinterface: | |
| 2980 { | |
| 2142 | 2981 Bytecode_invoke invoke(sd->method(), sd->bci()); |
| 0 | 2982 st->print(" "); |
| 2142 | 2983 if (invoke.name() != NULL) |
| 2984 invoke.name()->print_symbol_on(st); | |
| 0 | 2985 else |
| 2986 st->print("<UNKNOWN>"); | |
| 2987 break; | |
| 2988 } | |
| 2989 case Bytecodes::_getfield: | |
| 2990 case Bytecodes::_putfield: | |
| 2991 case Bytecodes::_getstatic: | |
| 2992 case Bytecodes::_putstatic: | |
| 2993 { | |
| 2142 | 2994 Bytecode_field field(sd->method(), sd->bci()); |
| 0 | 2995 st->print(" "); |
| 2142 | 2996 if (field.name() != NULL) |
| 2997 field.name()->print_symbol_on(st); | |
| 0 | 2998 else |
| 2999 st->print("<UNKNOWN>"); | |
| 3000 } | |
| 3001 } | |
| 3002 } | |
| 3003 } | |
|
100
c7c777385a15
6667042: PrintAssembly option does not work without special plugin
jrose
parents:
30
diff
changeset
|
3004 |
| 0 | 3005 // Print all scopes |
| 3006 for (;sd != NULL; sd = sd->sender()) { | |
|
100
c7c777385a15
6667042: PrintAssembly option does not work without special plugin
jrose
parents:
30
diff
changeset
|
3007 st->move_to(column); |
| 0 | 3008 st->print("; -"); |
|
6725
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6266
diff
changeset
|
3009 if (sd->method() == NULL) { |
|
100
c7c777385a15
6667042: PrintAssembly option does not work without special plugin
jrose
parents:
30
diff
changeset
|
3010 st->print("method is NULL"); |
| 0 | 3011 } else { |
| 3012 sd->method()->print_short_name(st); | |
| 3013 } | |
| 3014 int lineno = sd->method()->line_number_from_bci(sd->bci()); | |
| 3015 if (lineno != -1) { | |
| 3016 st->print("@%d (line %d)", sd->bci(), lineno); | |
| 3017 } else { | |
| 3018 st->print("@%d", sd->bci()); | |
| 3019 } | |
| 3020 st->cr(); | |
| 3021 } | |
| 3022 } | |
| 3023 | |
| 3024 // Print relocation information | |
| 3025 const char* str = reloc_string_for(begin, end); | |
| 3026 if (str != NULL) { | |
| 3027 if (sd != NULL) st->cr(); | |
|
100
c7c777385a15
6667042: PrintAssembly option does not work without special plugin
jrose
parents:
30
diff
changeset
|
3028 st->move_to(column); |
| 0 | 3029 st->print("; {%s}", str); |
| 3030 } | |
| 1748 | 3031 int cont_offset = ImplicitExceptionTable(this).at(begin - code_begin()); |
| 0 | 3032 if (cont_offset != 0) { |
|
100
c7c777385a15
6667042: PrintAssembly option does not work without special plugin
jrose
parents:
30
diff
changeset
|
3033 st->move_to(column); |
| 1748 | 3034 st->print("; implicit exception: dispatches to " INTPTR_FORMAT, code_begin() + cont_offset); |
| 0 | 3035 } |
| 3036 | |
| 3037 } | |
| 3038 | |
|
100
c7c777385a15
6667042: PrintAssembly option does not work without special plugin
jrose
parents:
30
diff
changeset
|
3039 #ifndef PRODUCT |
|
c7c777385a15
6667042: PrintAssembly option does not work without special plugin
jrose
parents:
30
diff
changeset
|
3040 |
| 0 | 3041 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
|
3042 st->print("nmethod"); |
|
3d58a4983660
7022998: JSR 292 recursive method handle calls inline themselves infinitely
twisti
parents:
2376
diff
changeset
|
3043 print_on(st, NULL); |
| 0 | 3044 } |
| 3045 | |
| 3046 void nmethod::print_calls(outputStream* st) { | |
| 3047 RelocIterator iter(this); | |
| 3048 while (iter.next()) { | |
| 3049 switch (iter.type()) { | |
| 3050 case relocInfo::virtual_call_type: | |
| 3051 case relocInfo::opt_virtual_call_type: { | |
| 3052 VerifyMutexLocker mc(CompiledIC_lock); | |
| 3053 CompiledIC_at(iter.reloc())->print(); | |
| 3054 break; | |
| 3055 } | |
| 3056 case relocInfo::static_call_type: | |
| 3057 st->print_cr("Static call at " INTPTR_FORMAT, iter.reloc()->addr()); | |
| 3058 compiledStaticCall_at(iter.reloc())->print(); | |
| 3059 break; | |
| 3060 } | |
| 3061 } | |
| 3062 } | |
| 3063 | |
| 3064 void nmethod::print_handler_table() { | |
| 3065 ExceptionHandlerTable(this).print(); | |
| 3066 } | |
| 3067 | |
| 3068 void nmethod::print_nul_chk_table() { | |
| 1748 | 3069 ImplicitExceptionTable(this).print(code_begin()); |
| 0 | 3070 } |
|
14733
b10e42998d01
nmethod: fix -XX:+PrintNMethodStatistics
Bernhard Urban <bernhard.urban@jku.at>
parents:
14726
diff
changeset
|
3071 #endif // PRODUCT |
| 0 | 3072 |
| 3073 void nmethod::print_statistics() { | |
| 3074 ttyLocker ttyl; | |
| 3075 if (xtty != NULL) xtty->head("statistics type='nmethod'"); | |
|
12675
7fedc59e2cdc
Split code cache stats for the different compilers
Gilles Duboscq <duboscq@ssw.jku.at>
parents:
12414
diff
changeset
|
3076 native_nmethod_stats.print_native_nmethod_stats(); |
|
7fedc59e2cdc
Split code cache stats for the different compilers
Gilles Duboscq <duboscq@ssw.jku.at>
parents:
12414
diff
changeset
|
3077 #ifdef COMPILER1 |
|
7fedc59e2cdc
Split code cache stats for the different compilers
Gilles Duboscq <duboscq@ssw.jku.at>
parents:
12414
diff
changeset
|
3078 c1_java_nmethod_stats.print_nmethod_stats("C1"); |
|
7fedc59e2cdc
Split code cache stats for the different compilers
Gilles Duboscq <duboscq@ssw.jku.at>
parents:
12414
diff
changeset
|
3079 #endif |
|
7fedc59e2cdc
Split code cache stats for the different compilers
Gilles Duboscq <duboscq@ssw.jku.at>
parents:
12414
diff
changeset
|
3080 #ifdef COMPILER2 |
|
7fedc59e2cdc
Split code cache stats for the different compilers
Gilles Duboscq <duboscq@ssw.jku.at>
parents:
12414
diff
changeset
|
3081 c2_java_nmethod_stats.print_nmethod_stats("C2"); |
|
7fedc59e2cdc
Split code cache stats for the different compilers
Gilles Duboscq <duboscq@ssw.jku.at>
parents:
12414
diff
changeset
|
3082 #endif |
|
7fedc59e2cdc
Split code cache stats for the different compilers
Gilles Duboscq <duboscq@ssw.jku.at>
parents:
12414
diff
changeset
|
3083 #ifdef GRAAL |
|
7fedc59e2cdc
Split code cache stats for the different compilers
Gilles Duboscq <duboscq@ssw.jku.at>
parents:
12414
diff
changeset
|
3084 graal_java_nmethod_stats.print_nmethod_stats("Graal"); |
|
7fedc59e2cdc
Split code cache stats for the different compilers
Gilles Duboscq <duboscq@ssw.jku.at>
parents:
12414
diff
changeset
|
3085 #endif |
|
12758
ca33948fb804
nmethod.cpp: s/unknwon/unknown/
Gilles Duboscq <duboscq@ssw.jku.at>
parents:
12704
diff
changeset
|
3086 unknown_java_nmethod_stats.print_nmethod_stats("Unknown"); |
| 0 | 3087 DebugInformationRecorder::print_statistics(); |
|
12675
7fedc59e2cdc
Split code cache stats for the different compilers
Gilles Duboscq <duboscq@ssw.jku.at>
parents:
12414
diff
changeset
|
3088 pc_nmethod_stats.print_pc_stats(); |
| 0 | 3089 Dependencies::print_statistics(); |
| 3090 if (xtty != NULL) xtty->tail("statistics"); | |
| 3091 } |