Mercurial > hg > truffle
annotate src/share/vm/code/nmethod.cpp @ 20813:eb21f2944d7d
Process Graal oops in nmethod::do_unloading_parallel
| author | Gilles Duboscq <gilles.m.duboscq@oracle.com> |
|---|---|
| date | Wed, 08 Apr 2015 15:33:13 +0200 |
| parents | 7848fc12602b |
| children | e13c65f874e5 |
| rev | line source |
|---|---|
| 0 | 1 /* |
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2 * Copyright (c) 1997, 2014, 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" |
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40 #include "runtime/orderAccess.inline.hpp" |
| 1972 | 41 #include "runtime/sharedRuntime.hpp" |
| 42 #include "runtime/sweeper.hpp" | |
| 43 #include "utilities/dtrace.hpp" | |
| 44 #include "utilities/events.hpp" | |
| 45 #include "utilities/xmlstream.hpp" | |
| 46 #ifdef SHARK | |
| 47 #include "shark/sharkCompiler.hpp" | |
| 48 #endif | |
| 9707 | 49 #ifdef GRAAL |
| 50 #include "graal/graalJavaAccess.hpp" | |
| 51 #endif | |
| 0 | 52 |
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53 PRAGMA_FORMAT_MUTE_WARNINGS_FOR_GCC |
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54 |
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55 unsigned char nmethod::_global_unloading_clock = 0; |
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56 |
| 0 | 57 #ifdef DTRACE_ENABLED |
| 58 | |
| 59 // Only bother with this argument setup if dtrace is available | |
| 60 | |
| 4006 | 61 #ifndef USDT2 |
| 0 | 62 HS_DTRACE_PROBE_DECL8(hotspot, compiled__method__load, |
| 63 const char*, int, const char*, int, const char*, int, void*, size_t); | |
| 64 | |
| 65 HS_DTRACE_PROBE_DECL6(hotspot, compiled__method__unload, | |
| 66 char*, int, char*, int, char*, int); | |
| 67 | |
| 68 #define DTRACE_METHOD_UNLOAD_PROBE(method) \ | |
| 69 { \ | |
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70 Method* m = (method); \ |
| 0 | 71 if (m != NULL) { \ |
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72 Symbol* klass_name = m->klass_name(); \ |
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73 Symbol* name = m->name(); \ |
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74 Symbol* signature = m->signature(); \ |
| 0 | 75 HS_DTRACE_PROBE6(hotspot, compiled__method__unload, \ |
| 76 klass_name->bytes(), klass_name->utf8_length(), \ | |
| 77 name->bytes(), name->utf8_length(), \ | |
| 78 signature->bytes(), signature->utf8_length()); \ | |
| 79 } \ | |
| 80 } | |
| 4006 | 81 #else /* USDT2 */ |
| 82 #define DTRACE_METHOD_UNLOAD_PROBE(method) \ | |
| 83 { \ | |
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84 Method* m = (method); \ |
| 4006 | 85 if (m != NULL) { \ |
| 86 Symbol* klass_name = m->klass_name(); \ | |
| 87 Symbol* name = m->name(); \ | |
| 88 Symbol* signature = m->signature(); \ | |
| 89 HOTSPOT_COMPILED_METHOD_UNLOAD( \ | |
| 90 (char *) klass_name->bytes(), klass_name->utf8_length(), \ | |
| 91 (char *) name->bytes(), name->utf8_length(), \ | |
| 92 (char *) signature->bytes(), signature->utf8_length()); \ | |
| 93 } \ | |
| 94 } | |
| 95 #endif /* USDT2 */ | |
| 0 | 96 |
| 97 #else // ndef DTRACE_ENABLED | |
| 98 | |
| 99 #define DTRACE_METHOD_UNLOAD_PROBE(method) | |
| 100 | |
| 101 #endif | |
| 102 | |
| 103 bool nmethod::is_compiled_by_c1() const { | |
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104 if (compiler() == NULL) { |
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105 return false; |
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106 } |
| 0 | 107 return compiler()->is_c1(); |
| 108 } | |
| 9707 | 109 bool nmethod::is_compiled_by_graal() const { |
| 110 if (compiler() == NULL || method() == NULL) return false; // can happen during debug printing | |
| 111 if (is_native_method()) return false; | |
| 112 return compiler()->is_graal(); | |
| 113 } | |
| 0 | 114 bool nmethod::is_compiled_by_c2() const { |
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115 if (compiler() == NULL) { |
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116 return false; |
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117 } |
| 0 | 118 return compiler()->is_c2(); |
| 119 } | |
| 1692 | 120 bool nmethod::is_compiled_by_shark() const { |
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121 if (compiler() == NULL) { |
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122 return false; |
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123 } |
| 1692 | 124 return compiler()->is_shark(); |
| 125 } | |
| 0 | 126 |
| 127 | |
| 128 | |
| 129 //--------------------------------------------------------------------------------- | |
| 130 // NMethod statistics | |
| 131 // They are printed under various flags, including: | |
| 132 // PrintC1Statistics, PrintOptoStatistics, LogVMOutput, and LogCompilation. | |
| 133 // (In the latter two cases, they like other stats are printed to the log only.) | |
| 134 | |
| 135 // These variables are put into one block to reduce relocations | |
| 136 // and make it simpler to print from the debugger. | |
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137 struct java_nmethod_stats_struct { |
| 0 | 138 int nmethod_count; |
| 139 int total_size; | |
| 140 int relocation_size; | |
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141 int consts_size; |
| 1748 | 142 int insts_size; |
| 0 | 143 int stub_size; |
| 144 int scopes_data_size; | |
| 145 int scopes_pcs_size; | |
| 146 int dependencies_size; | |
| 147 int handler_table_size; | |
| 148 int nul_chk_table_size; | |
| 149 int oops_size; | |
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150 int metadata_size; |
| 0 | 151 |
| 152 void note_nmethod(nmethod* nm) { | |
| 153 nmethod_count += 1; | |
| 154 total_size += nm->size(); | |
| 155 relocation_size += nm->relocation_size(); | |
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156 consts_size += nm->consts_size(); |
| 1748 | 157 insts_size += nm->insts_size(); |
| 0 | 158 stub_size += nm->stub_size(); |
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159 oops_size += nm->oops_size(); |
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160 metadata_size += nm->metadata_size(); |
| 0 | 161 scopes_data_size += nm->scopes_data_size(); |
| 162 scopes_pcs_size += nm->scopes_pcs_size(); | |
| 163 dependencies_size += nm->dependencies_size(); | |
| 164 handler_table_size += nm->handler_table_size(); | |
| 165 nul_chk_table_size += nm->nul_chk_table_size(); | |
| 166 } | |
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167 void print_nmethod_stats(const char* name) { |
| 0 | 168 if (nmethod_count == 0) return; |
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169 tty->print_cr("Statistics for %d bytecoded nmethods for %s:", nmethod_count, name); |
| 0 | 170 if (total_size != 0) tty->print_cr(" total in heap = %d", total_size); |
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171 if (nmethod_count != 0) tty->print_cr(" header = %d", nmethod_count * sizeof(nmethod)); |
| 0 | 172 if (relocation_size != 0) tty->print_cr(" relocation = %d", relocation_size); |
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173 if (consts_size != 0) tty->print_cr(" constants = %d", consts_size); |
| 1748 | 174 if (insts_size != 0) tty->print_cr(" main code = %d", insts_size); |
| 0 | 175 if (stub_size != 0) tty->print_cr(" stub code = %d", stub_size); |
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176 if (oops_size != 0) tty->print_cr(" oops = %d", oops_size); |
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177 if (metadata_size != 0) tty->print_cr(" metadata = %d", metadata_size); |
| 0 | 178 if (scopes_data_size != 0) tty->print_cr(" scopes data = %d", scopes_data_size); |
| 179 if (scopes_pcs_size != 0) tty->print_cr(" scopes pcs = %d", scopes_pcs_size); | |
| 180 if (dependencies_size != 0) tty->print_cr(" dependencies = %d", dependencies_size); | |
| 181 if (handler_table_size != 0) tty->print_cr(" handler table = %d", handler_table_size); | |
| 182 if (nul_chk_table_size != 0) tty->print_cr(" nul chk table = %d", nul_chk_table_size); | |
| 183 } | |
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184 }; |
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185 |
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186 struct native_nmethod_stats_struct { |
| 0 | 187 int native_nmethod_count; |
| 188 int native_total_size; | |
| 189 int native_relocation_size; | |
| 1748 | 190 int native_insts_size; |
| 0 | 191 int native_oops_size; |
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192 int native_metadata_size; |
| 0 | 193 void note_native_nmethod(nmethod* nm) { |
| 194 native_nmethod_count += 1; | |
| 195 native_total_size += nm->size(); | |
| 196 native_relocation_size += nm->relocation_size(); | |
| 1748 | 197 native_insts_size += nm->insts_size(); |
| 0 | 198 native_oops_size += nm->oops_size(); |
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199 native_metadata_size += nm->metadata_size(); |
| 0 | 200 } |
| 201 void print_native_nmethod_stats() { | |
| 202 if (native_nmethod_count == 0) return; | |
| 203 tty->print_cr("Statistics for %d native nmethods:", native_nmethod_count); | |
| 204 if (native_total_size != 0) tty->print_cr(" N. total size = %d", native_total_size); | |
| 205 if (native_relocation_size != 0) tty->print_cr(" N. relocation = %d", native_relocation_size); | |
| 1748 | 206 if (native_insts_size != 0) tty->print_cr(" N. main code = %d", native_insts_size); |
| 0 | 207 if (native_oops_size != 0) tty->print_cr(" N. oops = %d", native_oops_size); |
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208 if (native_metadata_size != 0) tty->print_cr(" N. metadata = %d", native_metadata_size); |
| 0 | 209 } |
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210 }; |
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211 |
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212 struct pc_nmethod_stats_struct { |
| 0 | 213 int pc_desc_resets; // number of resets (= number of caches) |
| 214 int pc_desc_queries; // queries to nmethod::find_pc_desc | |
| 215 int pc_desc_approx; // number of those which have approximate true | |
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216 int pc_desc_repeats; // number of _pc_descs[0] hits |
| 0 | 217 int pc_desc_hits; // number of LRU cache hits |
| 218 int pc_desc_tests; // total number of PcDesc examinations | |
| 219 int pc_desc_searches; // total number of quasi-binary search steps | |
| 220 int pc_desc_adds; // number of LUR cache insertions | |
| 221 | |
| 222 void print_pc_stats() { | |
| 223 tty->print_cr("PcDesc Statistics: %d queries, %.2f comparisons per query", | |
| 224 pc_desc_queries, | |
| 225 (double)(pc_desc_tests + pc_desc_searches) | |
| 226 / pc_desc_queries); | |
| 227 tty->print_cr(" caches=%d queries=%d/%d, hits=%d+%d, tests=%d+%d, adds=%d", | |
| 228 pc_desc_resets, | |
| 229 pc_desc_queries, pc_desc_approx, | |
| 230 pc_desc_repeats, pc_desc_hits, | |
| 231 pc_desc_tests, pc_desc_searches, pc_desc_adds); | |
| 232 } | |
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233 }; |
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234 |
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235 #ifdef COMPILER1 |
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236 static java_nmethod_stats_struct c1_java_nmethod_stats; |
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237 #endif |
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238 #ifdef COMPILER2 |
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239 static java_nmethod_stats_struct c2_java_nmethod_stats; |
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240 #endif |
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241 #ifdef GRAAL |
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242 static java_nmethod_stats_struct graal_java_nmethod_stats; |
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243 #endif |
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244 #ifdef SHARK |
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245 static java_nmethod_stats_struct shark_java_nmethod_stats; |
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246 #endif |
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247 static java_nmethod_stats_struct unknown_java_nmethod_stats; |
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248 |
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249 static native_nmethod_stats_struct native_nmethod_stats; |
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250 static pc_nmethod_stats_struct pc_nmethod_stats; |
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251 |
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252 static void note_native_wrapper_nmethod(nmethod* nm) { |
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253 native_nmethod_stats.note_native_nmethod(nm); |
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254 } |
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255 |
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256 static void note_java_nmethod(nmethod* nm) { |
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257 #ifdef COMPILER1 |
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258 if (nm->is_compiled_by_c1()) { |
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259 c1_java_nmethod_stats.note_nmethod(nm); |
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260 } else |
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261 #endif |
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262 #ifdef COMPILER2 |
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263 if (nm->is_compiled_by_c2()) { |
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264 c2_java_nmethod_stats.note_nmethod(nm); |
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265 } else |
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266 #endif |
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267 #ifdef GRAAL |
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268 if (nm->is_compiled_by_graal()) { |
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269 graal_java_nmethod_stats.note_nmethod(nm); |
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270 } else |
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271 #endif |
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272 #ifdef SHARK |
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273 if (nm->is_compiled_by_shark()) { |
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274 shark_java_nmethod_stats.note_nmethod(nm); |
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275 } else |
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276 #endif |
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277 { |
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278 unknown_java_nmethod_stats.note_nmethod(nm); |
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279 } |
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280 } |
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281 |
| 0 | 282 //--------------------------------------------------------------------------------- |
| 283 | |
| 284 | |
| 285 ExceptionCache::ExceptionCache(Handle exception, address pc, address handler) { | |
| 286 assert(pc != NULL, "Must be non null"); | |
| 287 assert(exception.not_null(), "Must be non null"); | |
| 288 assert(handler != NULL, "Must be non null"); | |
| 289 | |
| 290 _count = 0; | |
| 291 _exception_type = exception->klass(); | |
| 292 _next = NULL; | |
| 293 | |
| 294 add_address_and_handler(pc,handler); | |
| 295 } | |
| 296 | |
| 297 | |
| 298 address ExceptionCache::match(Handle exception, address pc) { | |
| 299 assert(pc != NULL,"Must be non null"); | |
| 300 assert(exception.not_null(),"Must be non null"); | |
| 301 if (exception->klass() == exception_type()) { | |
| 302 return (test_address(pc)); | |
| 303 } | |
| 304 | |
| 305 return NULL; | |
| 306 } | |
| 307 | |
| 308 | |
| 309 bool ExceptionCache::match_exception_with_space(Handle exception) { | |
| 310 assert(exception.not_null(),"Must be non null"); | |
| 311 if (exception->klass() == exception_type() && count() < cache_size) { | |
| 312 return true; | |
| 313 } | |
| 314 return false; | |
| 315 } | |
| 316 | |
| 317 | |
| 318 address ExceptionCache::test_address(address addr) { | |
| 319 for (int i=0; i<count(); i++) { | |
| 320 if (pc_at(i) == addr) { | |
| 321 return handler_at(i); | |
| 322 } | |
| 323 } | |
| 324 return NULL; | |
| 325 } | |
| 326 | |
| 327 | |
| 328 bool ExceptionCache::add_address_and_handler(address addr, address handler) { | |
| 329 if (test_address(addr) == handler) return true; | |
| 330 if (count() < cache_size) { | |
| 331 set_pc_at(count(),addr); | |
| 332 set_handler_at(count(), handler); | |
| 333 increment_count(); | |
| 334 return true; | |
| 335 } | |
| 336 return false; | |
| 337 } | |
| 338 | |
| 339 | |
| 340 // private method for handling exception cache | |
| 341 // These methods are private, and used to manipulate the exception cache | |
| 342 // directly. | |
| 343 ExceptionCache* nmethod::exception_cache_entry_for_exception(Handle exception) { | |
| 344 ExceptionCache* ec = exception_cache(); | |
| 345 while (ec != NULL) { | |
| 346 if (ec->match_exception_with_space(exception)) { | |
| 347 return ec; | |
| 348 } | |
| 349 ec = ec->next(); | |
| 350 } | |
| 351 return NULL; | |
| 352 } | |
| 353 | |
| 354 | |
| 355 //----------------------------------------------------------------------------- | |
| 356 | |
| 357 | |
| 358 // Helper used by both find_pc_desc methods. | |
| 359 static inline bool match_desc(PcDesc* pc, int pc_offset, bool approximate) { | |
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360 NOT_PRODUCT(++pc_nmethod_stats.pc_desc_tests); |
| 0 | 361 if (!approximate) |
| 362 return pc->pc_offset() == pc_offset; | |
| 363 else | |
| 364 return (pc-1)->pc_offset() < pc_offset && pc_offset <= pc->pc_offset(); | |
| 365 } | |
| 366 | |
| 367 void PcDescCache::reset_to(PcDesc* initial_pc_desc) { | |
| 368 if (initial_pc_desc == NULL) { | |
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369 _pc_descs[0] = NULL; // native method; no PcDescs at all |
| 0 | 370 return; |
| 371 } | |
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372 NOT_PRODUCT(++pc_nmethod_stats.pc_desc_resets); |
| 0 | 373 // reset the cache by filling it with benign (non-null) values |
| 374 assert(initial_pc_desc->pc_offset() < 0, "must be sentinel"); | |
| 375 for (int i = 0; i < cache_size; i++) | |
| 376 _pc_descs[i] = initial_pc_desc; | |
| 377 } | |
| 378 | |
| 379 PcDesc* PcDescCache::find_pc_desc(int pc_offset, bool approximate) { | |
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380 NOT_PRODUCT(++pc_nmethod_stats.pc_desc_queries); |
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381 NOT_PRODUCT(if (approximate) ++pc_nmethod_stats.pc_desc_approx); |
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382 |
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383 // Note: one might think that caching the most recently |
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384 // read value separately would be a win, but one would be |
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385 // wrong. When many threads are updating it, the cache |
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386 // line it's in would bounce between caches, negating |
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387 // any benefit. |
| 0 | 388 |
| 389 // In order to prevent race conditions do not load cache elements | |
| 390 // repeatedly, but use a local copy: | |
| 391 PcDesc* res; | |
| 392 | |
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393 // Step one: Check the most recently added value. |
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394 res = _pc_descs[0]; |
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395 if (res == NULL) return NULL; // native method; no PcDescs at all |
| 0 | 396 if (match_desc(res, pc_offset, approximate)) { |
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397 NOT_PRODUCT(++pc_nmethod_stats.pc_desc_repeats); |
| 0 | 398 return res; |
| 399 } | |
| 400 | |
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401 // Step two: Check the rest of the LRU cache. |
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402 for (int i = 1; i < cache_size; ++i) { |
| 0 | 403 res = _pc_descs[i]; |
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404 if (res->pc_offset() < 0) break; // optimization: skip empty cache |
| 0 | 405 if (match_desc(res, pc_offset, approximate)) { |
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406 NOT_PRODUCT(++pc_nmethod_stats.pc_desc_hits); |
| 0 | 407 return res; |
| 408 } | |
| 409 } | |
| 410 | |
| 411 // Report failure. | |
| 412 return NULL; | |
| 413 } | |
| 414 | |
| 415 void PcDescCache::add_pc_desc(PcDesc* pc_desc) { | |
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416 NOT_PRODUCT(++pc_nmethod_stats.pc_desc_adds); |
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417 // Update the LRU cache by shifting pc_desc forward. |
| 0 | 418 for (int i = 0; i < cache_size; i++) { |
| 419 PcDesc* next = _pc_descs[i]; | |
| 420 _pc_descs[i] = pc_desc; | |
| 421 pc_desc = next; | |
| 422 } | |
| 423 } | |
| 424 | |
| 425 // adjust pcs_size so that it is a multiple of both oopSize and | |
| 426 // sizeof(PcDesc) (assumes that if sizeof(PcDesc) is not a multiple | |
| 427 // of oopSize, then 2*sizeof(PcDesc) is) | |
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428 static int adjust_pcs_size(int pcs_size) { |
| 0 | 429 int nsize = round_to(pcs_size, oopSize); |
| 430 if ((nsize % sizeof(PcDesc)) != 0) { | |
| 431 nsize = pcs_size + sizeof(PcDesc); | |
| 432 } | |
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433 assert((nsize % oopSize) == 0, "correct alignment"); |
| 0 | 434 return nsize; |
| 435 } | |
| 436 | |
| 437 //----------------------------------------------------------------------------- | |
| 438 | |
| 439 | |
| 440 void nmethod::add_exception_cache_entry(ExceptionCache* new_entry) { | |
| 441 assert(ExceptionCache_lock->owned_by_self(),"Must hold the ExceptionCache_lock"); | |
| 442 assert(new_entry != NULL,"Must be non null"); | |
| 443 assert(new_entry->next() == NULL, "Must be null"); | |
| 444 | |
| 445 if (exception_cache() != NULL) { | |
| 446 new_entry->set_next(exception_cache()); | |
| 447 } | |
| 448 set_exception_cache(new_entry); | |
| 449 } | |
| 450 | |
| 20269 | 451 void nmethod::clean_exception_cache(BoolObjectClosure* is_alive) { |
| 0 | 452 ExceptionCache* prev = NULL; |
| 453 ExceptionCache* curr = exception_cache(); | |
| 20269 | 454 |
| 455 while (curr != NULL) { | |
| 456 ExceptionCache* next = curr->next(); | |
| 457 | |
| 458 Klass* ex_klass = curr->exception_type(); | |
| 459 if (ex_klass != NULL && !ex_klass->is_loader_alive(is_alive)) { | |
| 460 if (prev == NULL) { | |
| 461 set_exception_cache(next); | |
| 462 } else { | |
| 463 prev->set_next(next); | |
| 464 } | |
| 465 delete curr; | |
| 466 // prev stays the same. | |
| 467 } else { | |
| 468 prev = curr; | |
| 469 } | |
| 470 | |
| 471 curr = next; | |
| 0 | 472 } |
| 473 } | |
| 474 | |
| 475 // public method for accessing the exception cache | |
| 476 // These are the public access methods. | |
| 477 address nmethod::handler_for_exception_and_pc(Handle exception, address pc) { | |
| 478 // We never grab a lock to read the exception cache, so we may | |
| 479 // have false negatives. This is okay, as it can only happen during | |
| 480 // the first few exception lookups for a given nmethod. | |
| 481 ExceptionCache* ec = exception_cache(); | |
| 482 while (ec != NULL) { | |
| 483 address ret_val; | |
| 484 if ((ret_val = ec->match(exception,pc)) != NULL) { | |
| 485 return ret_val; | |
| 486 } | |
| 487 ec = ec->next(); | |
| 488 } | |
| 489 return NULL; | |
| 490 } | |
| 491 | |
| 492 | |
| 493 void nmethod::add_handler_for_exception_and_pc(Handle exception, address pc, address handler) { | |
| 494 // There are potential race conditions during exception cache updates, so we | |
| 495 // must own the ExceptionCache_lock before doing ANY modifications. Because | |
| 605 | 496 // we don't lock during reads, it is possible to have several threads attempt |
| 0 | 497 // to update the cache with the same data. We need to check for already inserted |
| 498 // copies of the current data before adding it. | |
| 499 | |
| 500 MutexLocker ml(ExceptionCache_lock); | |
| 501 ExceptionCache* target_entry = exception_cache_entry_for_exception(exception); | |
| 502 | |
| 503 if (target_entry == NULL || !target_entry->add_address_and_handler(pc,handler)) { | |
| 504 target_entry = new ExceptionCache(exception,pc,handler); | |
| 505 add_exception_cache_entry(target_entry); | |
| 506 } | |
| 507 } | |
| 508 | |
| 509 | |
| 510 //-------------end of code for ExceptionCache-------------- | |
| 511 | |
| 512 | |
| 513 int nmethod::total_size() const { | |
| 514 return | |
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515 consts_size() + |
| 1748 | 516 insts_size() + |
| 0 | 517 stub_size() + |
| 518 scopes_data_size() + | |
| 519 scopes_pcs_size() + | |
| 520 handler_table_size() + | |
| 521 nul_chk_table_size(); | |
| 522 } | |
| 523 | |
| 524 const char* nmethod::compile_kind() const { | |
| 525 if (is_osr_method()) return "osr"; | |
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526 if (method() != NULL && is_native_method()) return "c2n"; |
| 0 | 527 return NULL; |
| 528 } | |
| 529 | |
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530 // Fill in default values for various flag fields |
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531 void nmethod::init_defaults() { |
| 13441 | 532 _state = in_use; |
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533 _unloading_clock = 0; |
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534 _marked_for_reclamation = 0; |
|
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535 _has_flushed_dependencies = 0; |
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536 _has_unsafe_access = 0; |
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537 _has_method_handle_invokes = 0; |
|
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538 _lazy_critical_native = 0; |
|
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539 _has_wide_vectors = 0; |
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540 _marked_for_deoptimization = 0; |
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541 _lock_count = 0; |
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542 _stack_traversal_mark = 0; |
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543 _unload_reported = false; // jvmti state |
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544 |
| 1726 | 545 #ifdef ASSERT |
| 546 _oops_are_stale = false; | |
| 547 #endif | |
| 548 | |
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549 _oops_do_mark_link = NULL; |
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550 _jmethod_id = NULL; |
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551 _osr_link = NULL; |
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552 if (UseG1GC) { |
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553 _unloading_next = NULL; |
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554 } else { |
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555 _scavenge_root_link = NULL; |
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556 } |
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557 _scavenge_root_state = 0; |
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558 _compiler = NULL; |
| 17780 | 559 #if INCLUDE_RTM_OPT |
| 560 _rtm_state = NoRTM; | |
| 561 #endif | |
| 9707 | 562 #ifdef GRAAL |
| 563 _graal_installed_code = NULL; | |
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564 _speculation_log = NULL; |
| 9707 | 565 #endif |
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566 #ifdef HAVE_DTRACE_H |
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567 _trap_offset = 0; |
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568 #endif // def HAVE_DTRACE_H |
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569 } |
| 0 | 570 |
| 571 nmethod* nmethod::new_native_nmethod(methodHandle method, | |
|
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572 int compile_id, |
| 0 | 573 CodeBuffer *code_buffer, |
| 574 int vep_offset, | |
| 575 int frame_complete, | |
| 576 int frame_size, | |
| 577 ByteSize basic_lock_owner_sp_offset, | |
| 578 ByteSize basic_lock_sp_offset, | |
| 579 OopMapSet* oop_maps) { | |
|
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580 code_buffer->finalize_oop_references(method); |
| 0 | 581 // create nmethod |
| 582 nmethod* nm = NULL; | |
| 583 { | |
| 584 MutexLockerEx mu(CodeCache_lock, Mutex::_no_safepoint_check_flag); | |
| 585 int native_nmethod_size = allocation_size(code_buffer, sizeof(nmethod)); | |
|
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586 CodeOffsets offsets; |
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587 offsets.set_value(CodeOffsets::Verified_Entry, vep_offset); |
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588 offsets.set_value(CodeOffsets::Frame_Complete, frame_complete); |
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589 nm = new (native_nmethod_size) nmethod(method(), native_nmethod_size, |
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590 compile_id, &offsets, |
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591 code_buffer, frame_size, |
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592 basic_lock_owner_sp_offset, |
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593 basic_lock_sp_offset, oop_maps); |
|
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594 if (nm != NULL) note_native_wrapper_nmethod(nm); |
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595 if (PrintAssembly && nm != NULL) { |
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596 Disassembler::decode(nm); |
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597 } |
| 0 | 598 } |
| 599 // verify nmethod | |
| 600 debug_only(if (nm) nm->verify();) // might block | |
| 601 | |
| 602 if (nm != NULL) { | |
| 603 nm->log_new_nmethod(); | |
| 604 } | |
| 605 | |
| 606 return nm; | |
| 607 } | |
| 608 | |
|
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609 #ifdef HAVE_DTRACE_H |
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610 nmethod* nmethod::new_dtrace_nmethod(methodHandle method, |
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611 CodeBuffer *code_buffer, |
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612 int vep_offset, |
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613 int trap_offset, |
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614 int frame_complete, |
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615 int frame_size) { |
|
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616 code_buffer->finalize_oop_references(method); |
|
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617 // create nmethod |
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618 nmethod* nm = NULL; |
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619 { |
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620 MutexLockerEx mu(CodeCache_lock, Mutex::_no_safepoint_check_flag); |
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621 int nmethod_size = allocation_size(code_buffer, sizeof(nmethod)); |
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622 CodeOffsets offsets; |
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623 offsets.set_value(CodeOffsets::Verified_Entry, vep_offset); |
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624 offsets.set_value(CodeOffsets::Dtrace_trap, trap_offset); |
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625 offsets.set_value(CodeOffsets::Frame_Complete, frame_complete); |
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626 |
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627 nm = new (nmethod_size) nmethod(method(), nmethod_size, |
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628 &offsets, code_buffer, frame_size); |
|
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629 |
|
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630 if (nm != NULL) note_java_nmethod(nm); |
|
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631 if (PrintAssembly && nm != NULL) { |
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632 Disassembler::decode(nm); |
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633 } |
|
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634 } |
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635 // verify nmethod |
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636 debug_only(if (nm) nm->verify();) // might block |
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637 |
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638 if (nm != NULL) { |
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639 nm->log_new_nmethod(); |
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640 } |
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641 |
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642 return nm; |
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643 } |
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644 |
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645 #endif // def HAVE_DTRACE_H |
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646 |
| 0 | 647 nmethod* nmethod::new_nmethod(methodHandle method, |
| 648 int compile_id, | |
| 649 int entry_bci, | |
| 650 CodeOffsets* offsets, | |
| 651 int orig_pc_offset, | |
| 652 DebugInformationRecorder* debug_info, | |
| 653 Dependencies* dependencies, | |
| 654 CodeBuffer* code_buffer, int frame_size, | |
| 655 OopMapSet* oop_maps, | |
| 656 ExceptionHandlerTable* handler_table, | |
| 657 ImplicitExceptionTable* nul_chk_table, | |
| 658 AbstractCompiler* compiler, | |
| 659 int comp_level | |
| 9707 | 660 #ifdef GRAAL |
| 661 , Handle installed_code, | |
|
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662 Handle speculationLog |
| 9707 | 663 #endif |
| 0 | 664 ) |
| 665 { | |
| 666 assert(debug_info->oop_recorder() == code_buffer->oop_recorder(), "shared OR"); | |
|
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667 code_buffer->finalize_oop_references(method); |
| 0 | 668 // create nmethod |
| 669 nmethod* nm = NULL; | |
| 670 { MutexLockerEx mu(CodeCache_lock, Mutex::_no_safepoint_check_flag); | |
| 671 int nmethod_size = | |
| 672 allocation_size(code_buffer, sizeof(nmethod)) | |
| 673 + adjust_pcs_size(debug_info->pcs_size()) | |
| 674 + round_to(dependencies->size_in_bytes() , oopSize) | |
| 675 + round_to(handler_table->size_in_bytes(), oopSize) | |
| 676 + round_to(nul_chk_table->size_in_bytes(), oopSize) | |
| 677 + round_to(debug_info->data_size() , oopSize); | |
|
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678 |
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679 nm = new (nmethod_size) |
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680 nmethod(method(), nmethod_size, compile_id, entry_bci, offsets, |
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681 orig_pc_offset, debug_info, dependencies, code_buffer, frame_size, |
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682 oop_maps, |
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683 handler_table, |
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684 nul_chk_table, |
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685 compiler, |
|
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686 comp_level |
| 9707 | 687 #ifdef GRAAL |
|
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688 , installed_code, |
|
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689 speculationLog |
| 9707 | 690 #endif |
|
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691 ); |
|
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692 |
| 0 | 693 if (nm != NULL) { |
| 694 // To make dependency checking during class loading fast, record | |
| 695 // the nmethod dependencies in the classes it is dependent on. | |
| 696 // This allows the dependency checking code to simply walk the | |
| 697 // class hierarchy above the loaded class, checking only nmethods | |
| 698 // which are dependent on those classes. The slow way is to | |
| 699 // check every nmethod for dependencies which makes it linear in | |
| 700 // the number of methods compiled. For applications with a lot | |
| 701 // classes the slow way is too slow. | |
| 702 for (Dependencies::DepStream deps(nm); deps.next(); ) { | |
|
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703 Klass* klass = deps.context_type(); |
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704 if (klass == NULL) { |
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705 continue; // ignore things like evol_method |
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706 } |
| 0 | 707 |
| 708 // record this nmethod as dependent on this klass | |
|
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709 InstanceKlass::cast(klass)->add_dependent_nmethod(nm); |
| 0 | 710 } |
|
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711 if (nm != NULL) note_java_nmethod(nm); |
|
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712 if (PrintAssembly || CompilerOracle::has_option_string(method, "PrintAssembly")) { |
|
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713 Disassembler::decode(nm); |
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714 } |
|
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715 } |
| 0 | 716 } |
|
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717 // Do verification and logging outside CodeCache_lock. |
| 0 | 718 if (nm != NULL) { |
|
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719 // Safepoints in nmethod::verify aren't allowed because nm hasn't been installed yet. |
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720 DEBUG_ONLY(nm->verify();) |
| 0 | 721 nm->log_new_nmethod(); |
| 722 } | |
| 723 return nm; | |
| 724 } | |
| 725 | |
| 726 | |
| 727 // For native wrappers | |
| 728 nmethod::nmethod( | |
|
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729 Method* method, |
| 0 | 730 int nmethod_size, |
|
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731 int compile_id, |
| 0 | 732 CodeOffsets* offsets, |
| 733 CodeBuffer* code_buffer, | |
| 734 int frame_size, | |
| 735 ByteSize basic_lock_owner_sp_offset, | |
| 736 ByteSize basic_lock_sp_offset, | |
| 737 OopMapSet* oop_maps ) | |
| 738 : CodeBlob("native nmethod", code_buffer, sizeof(nmethod), | |
| 739 nmethod_size, offsets->value(CodeOffsets::Frame_Complete), frame_size, oop_maps), | |
| 2019 | 740 _native_receiver_sp_offset(basic_lock_owner_sp_offset), |
| 741 _native_basic_lock_sp_offset(basic_lock_sp_offset) | |
| 0 | 742 { |
| 743 { | |
| 744 debug_only(No_Safepoint_Verifier nsv;) | |
| 745 assert_locked_or_safepoint(CodeCache_lock); | |
| 746 | |
|
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747 init_defaults(); |
| 0 | 748 _method = method; |
| 749 _entry_bci = InvocationEntryBci; | |
| 750 // We have no exception handler or deopt handler make the | |
| 751 // values something that will never match a pc like the nmethod vtable entry | |
| 752 _exception_offset = 0; | |
| 753 _deoptimize_offset = 0; | |
| 1204 | 754 _deoptimize_mh_offset = 0; |
| 0 | 755 _orig_pc_offset = 0; |
|
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756 |
| 1748 | 757 _consts_offset = data_offset(); |
| 0 | 758 _stub_offset = data_offset(); |
|
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759 _oops_offset = data_offset(); |
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760 _metadata_offset = _oops_offset + round_to(code_buffer->total_oop_size(), oopSize); |
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761 _scopes_data_offset = _metadata_offset + round_to(code_buffer->total_metadata_size(), wordSize); |
| 0 | 762 _scopes_pcs_offset = _scopes_data_offset; |
| 763 _dependencies_offset = _scopes_pcs_offset; | |
| 764 _handler_table_offset = _dependencies_offset; | |
| 765 _nul_chk_table_offset = _handler_table_offset; | |
| 766 _nmethod_end_offset = _nul_chk_table_offset; | |
|
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767 _compile_id = compile_id; |
| 0 | 768 _comp_level = CompLevel_none; |
| 1748 | 769 _entry_point = code_begin() + offsets->value(CodeOffsets::Entry); |
| 770 _verified_entry_point = code_begin() + offsets->value(CodeOffsets::Verified_Entry); | |
| 0 | 771 _osr_entry_point = NULL; |
| 772 _exception_cache = NULL; | |
| 773 _pc_desc_cache.reset_to(NULL); | |
|
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774 _hotness_counter = NMethodSweeper::hotness_counter_reset_val(); |
| 0 | 775 |
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776 code_buffer->copy_values_to(this); |
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777 if (ScavengeRootsInCode) { |
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778 if (detect_scavenge_root_oops()) { |
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779 CodeCache::add_scavenge_root_nmethod(this); |
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780 } |
| 12080 | 781 Universe::heap()->register_nmethod(this); |
|
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782 } |
|
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|
783 debug_only(verify_scavenge_root_oops()); |
| 0 | 784 CodeCache::commit(this); |
| 785 } | |
| 786 | |
| 787 if (PrintNativeNMethods || PrintDebugInfo || PrintRelocations || PrintDependencies) { | |
| 788 ttyLocker ttyl; // keep the following output all in one block | |
| 789 // This output goes directly to the tty, not the compiler log. | |
| 790 // To enable tools to match it up with the compilation activity, | |
| 791 // be sure to tag this tty output with the compile ID. | |
| 792 if (xtty != NULL) { | |
| 793 xtty->begin_head("print_native_nmethod"); | |
| 794 xtty->method(_method); | |
| 795 xtty->stamp(); | |
| 796 xtty->end_head(" address='" INTPTR_FORMAT "'", (intptr_t) this); | |
| 797 } | |
| 798 // print the header part first | |
| 799 print(); | |
| 800 // then print the requested information | |
| 801 if (PrintNativeNMethods) { | |
| 802 print_code(); | |
|
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803 if (oop_maps != NULL) { |
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804 oop_maps->print(); |
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805 } |
| 0 | 806 } |
| 807 if (PrintRelocations) { | |
| 808 print_relocations(); | |
| 809 } | |
| 810 if (xtty != NULL) { | |
| 811 xtty->tail("print_native_nmethod"); | |
| 812 } | |
| 813 } | |
| 814 } | |
| 815 | |
|
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816 // For dtrace wrappers |
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817 #ifdef HAVE_DTRACE_H |
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818 nmethod::nmethod( |
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819 Method* method, |
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820 int nmethod_size, |
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821 CodeOffsets* offsets, |
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822 CodeBuffer* code_buffer, |
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823 int frame_size) |
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824 : CodeBlob("dtrace nmethod", code_buffer, sizeof(nmethod), |
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825 nmethod_size, offsets->value(CodeOffsets::Frame_Complete), frame_size, NULL), |
| 2019 | 826 _native_receiver_sp_offset(in_ByteSize(-1)), |
| 827 _native_basic_lock_sp_offset(in_ByteSize(-1)) | |
|
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828 { |
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829 { |
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830 debug_only(No_Safepoint_Verifier nsv;) |
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831 assert_locked_or_safepoint(CodeCache_lock); |
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832 |
|
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833 init_defaults(); |
|
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834 _method = method; |
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835 _entry_bci = InvocationEntryBci; |
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836 // We have no exception handler or deopt handler make the |
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837 // values something that will never match a pc like the nmethod vtable entry |
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838 _exception_offset = 0; |
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839 _deoptimize_offset = 0; |
| 1204 | 840 _deoptimize_mh_offset = 0; |
|
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841 _unwind_handler_offset = -1; |
|
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842 _trap_offset = offsets->value(CodeOffsets::Dtrace_trap); |
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843 _orig_pc_offset = 0; |
| 1748 | 844 _consts_offset = data_offset(); |
|
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845 _stub_offset = data_offset(); |
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846 _oops_offset = data_offset(); |
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847 _metadata_offset = _oops_offset + round_to(code_buffer->total_oop_size(), oopSize); |
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848 _scopes_data_offset = _metadata_offset + round_to(code_buffer->total_metadata_size(), wordSize); |
|
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849 _scopes_pcs_offset = _scopes_data_offset; |
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850 _dependencies_offset = _scopes_pcs_offset; |
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851 _handler_table_offset = _dependencies_offset; |
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852 _nul_chk_table_offset = _handler_table_offset; |
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853 _nmethod_end_offset = _nul_chk_table_offset; |
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854 _compile_id = 0; // default |
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855 _comp_level = CompLevel_none; |
| 1748 | 856 _entry_point = code_begin() + offsets->value(CodeOffsets::Entry); |
| 857 _verified_entry_point = code_begin() + offsets->value(CodeOffsets::Verified_Entry); | |
|
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858 _osr_entry_point = NULL; |
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859 _exception_cache = NULL; |
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860 _pc_desc_cache.reset_to(NULL); |
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861 _hotness_counter = NMethodSweeper::hotness_counter_reset_val(); |
|
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862 |
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863 code_buffer->copy_values_to(this); |
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864 if (ScavengeRootsInCode) { |
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865 if (detect_scavenge_root_oops()) { |
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866 CodeCache::add_scavenge_root_nmethod(this); |
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867 } |
|
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868 Universe::heap()->register_nmethod(this); |
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869 } |
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870 DEBUG_ONLY(verify_scavenge_root_oops();) |
|
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871 CodeCache::commit(this); |
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872 } |
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873 |
|
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874 bool printnmethods = PrintNMethods || PrintNMethodsAtLevel == _comp_level; |
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875 if (printnmethods || PrintDebugInfo || PrintRelocations || PrintDependencies) { |
|
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876 ttyLocker ttyl; // keep the following output all in one block |
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877 // This output goes directly to the tty, not the compiler log. |
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878 // To enable tools to match it up with the compilation activity, |
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879 // be sure to tag this tty output with the compile ID. |
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880 if (xtty != NULL) { |
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881 xtty->begin_head("print_dtrace_nmethod"); |
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882 xtty->method(_method); |
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883 xtty->stamp(); |
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884 xtty->end_head(" address='" INTPTR_FORMAT "'", (intptr_t) this); |
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885 } |
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886 // print the header part first |
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887 print(); |
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888 // then print the requested information |
|
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|
889 if (printnmethods) { |
|
116
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890 print_code(); |
|
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891 } |
|
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892 if (PrintRelocations) { |
|
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|
893 print_relocations(); |
|
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894 } |
|
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|
895 if (xtty != NULL) { |
|
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|
896 xtty->tail("print_dtrace_nmethod"); |
|
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|
897 } |
|
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898 } |
|
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|
899 } |
|
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|
900 #endif // def HAVE_DTRACE_H |
| 0 | 901 |
|
12146
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8021954: VM SIGSEGV during classloading on MacOS; hs_err_pid file produced
coleenp
parents:
12080
diff
changeset
|
902 void* nmethod::operator new(size_t size, int nmethod_size) throw() { |
|
10114
a7fb14888912
8006952: Slow VM due to excessive code cache freelist iteration
neliasso
parents:
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diff
changeset
|
903 // Not critical, may return null if there is too little continuous memory |
|
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8006952: Slow VM due to excessive code cache freelist iteration
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|
904 return CodeCache::allocate(nmethod_size); |
| 0 | 905 } |
| 906 | |
| 907 nmethod::nmethod( | |
|
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diff
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|
908 Method* method, |
| 0 | 909 int nmethod_size, |
| 910 int compile_id, | |
| 911 int entry_bci, | |
| 912 CodeOffsets* offsets, | |
| 913 int orig_pc_offset, | |
| 914 DebugInformationRecorder* debug_info, | |
| 915 Dependencies* dependencies, | |
| 916 CodeBuffer *code_buffer, | |
| 917 int frame_size, | |
| 918 OopMapSet* oop_maps, | |
| 919 ExceptionHandlerTable* handler_table, | |
| 920 ImplicitExceptionTable* nul_chk_table, | |
| 921 AbstractCompiler* compiler, | |
| 922 int comp_level | |
| 9707 | 923 #ifdef GRAAL |
| 924 , Handle installed_code, | |
|
13641
5a9afbf72714
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Gilles Duboscq <duboscq@ssw.jku.at>
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diff
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|
925 Handle speculation_log |
| 9707 | 926 #endif |
| 0 | 927 ) |
| 928 : CodeBlob("nmethod", code_buffer, sizeof(nmethod), | |
| 929 nmethod_size, offsets->value(CodeOffsets::Frame_Complete), frame_size, oop_maps), | |
| 2019 | 930 _native_receiver_sp_offset(in_ByteSize(-1)), |
| 931 _native_basic_lock_sp_offset(in_ByteSize(-1)) | |
| 0 | 932 { |
| 933 assert(debug_info->oop_recorder() == code_buffer->oop_recorder(), "shared OR"); | |
| 934 { | |
| 935 debug_only(No_Safepoint_Verifier nsv;) | |
| 936 assert_locked_or_safepoint(CodeCache_lock); | |
| 937 | |
|
1644
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6965184: possible races in make_not_entrant_or_zombie
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parents:
1616
diff
changeset
|
938 init_defaults(); |
| 0 | 939 _method = method; |
|
1644
2a47bd84841f
6965184: possible races in make_not_entrant_or_zombie
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parents:
1616
diff
changeset
|
940 _entry_bci = entry_bci; |
| 0 | 941 _compile_id = compile_id; |
| 942 _comp_level = comp_level; | |
| 943 _compiler = compiler; | |
| 944 _orig_pc_offset = orig_pc_offset; | |
|
12324
510fbd28919c
8020151: PSR:PERF Large performance regressions when code cache is filled
anoll
parents:
12175
diff
changeset
|
945 _hotness_counter = NMethodSweeper::hotness_counter_reset_val(); |
| 1748 | 946 |
| 947 // Section offsets | |
|
1762
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|
948 _consts_offset = content_offset() + code_buffer->total_offset_of(code_buffer->consts()); |
|
0878d7bae69f
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|
949 _stub_offset = content_offset() + code_buffer->total_offset_of(code_buffer->stubs()); |
| 0 | 950 |
| 9707 | 951 #ifdef GRAAL |
| 952 _graal_installed_code = installed_code(); | |
|
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Gilles Duboscq <duboscq@ssw.jku.at>
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diff
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|
953 _speculation_log = (instanceOop)speculation_log(); |
|
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diff
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|
954 |
| 9707 | 955 if (compiler->is_graal()) { |
| 956 // Graal might not produce any stub sections | |
| 957 if (offsets->value(CodeOffsets::Exceptions) != -1) { | |
| 958 _exception_offset = code_offset() + offsets->value(CodeOffsets::Exceptions); | |
| 959 } else { | |
| 960 _exception_offset = -1; | |
| 961 } | |
| 962 if (offsets->value(CodeOffsets::Deopt) != -1) { | |
| 963 _deoptimize_offset = code_offset() + offsets->value(CodeOffsets::Deopt); | |
| 964 } else { | |
| 965 _deoptimize_offset = -1; | |
| 966 } | |
| 967 if (offsets->value(CodeOffsets::DeoptMH) != -1) { | |
| 968 _deoptimize_mh_offset = code_offset() + offsets->value(CodeOffsets::DeoptMH); | |
| 969 } else { | |
| 970 _deoptimize_mh_offset = -1; | |
| 971 } | |
|
1762
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|
972 } else { |
|
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|
973 #endif |
| 0 | 974 // Exception handler and deopt handler are in the stub section |
|
2083
7d9caaedafce
6990933: assert(sender_cb) failed: sanity in frame::sender_for_interpreter_frame
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diff
changeset
|
975 assert(offsets->value(CodeOffsets::Exceptions) != -1, "must be set"); |
|
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|
976 assert(offsets->value(CodeOffsets::Deopt ) != -1, "must be set"); |
|
18125
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diff
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|
977 |
| 1748 | 978 _exception_offset = _stub_offset + offsets->value(CodeOffsets::Exceptions); |
| 979 _deoptimize_offset = _stub_offset + offsets->value(CodeOffsets::Deopt); | |
|
2083
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twisti
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|
980 if (offsets->value(CodeOffsets::DeoptMH) != -1) { |
|
1762
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|
981 _deoptimize_mh_offset = _stub_offset + offsets->value(CodeOffsets::DeoptMH); |
|
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diff
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|
982 } else { |
|
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diff
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|
983 _deoptimize_mh_offset = -1; |
|
18125
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Reduce diff with upstream
Gilles Duboscq <duboscq@ssw.jku.at>
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diff
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|
984 #ifdef GRAAL |
|
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Gilles Duboscq <duboscq@ssw.jku.at>
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diff
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|
985 } |
|
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Gilles Duboscq <duboscq@ssw.jku.at>
parents:
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diff
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|
986 #endif |
|
1762
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diff
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|
987 } |
|
1378
9f5b60a14736
6939930: exception unwind changes in 6919934 hurts compilation speed
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|
988 if (offsets->value(CodeOffsets::UnwindHandler) != -1) { |
| 1748 | 989 _unwind_handler_offset = code_offset() + offsets->value(CodeOffsets::UnwindHandler); |
|
1378
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diff
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|
990 } else { |
| 1748 | 991 _unwind_handler_offset = -1; |
|
1378
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diff
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|
992 } |
| 1748 | 993 |
|
1563
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diff
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|
994 _oops_offset = data_offset(); |
|
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|
995 _metadata_offset = _oops_offset + round_to(code_buffer->total_oop_size(), oopSize); |
|
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|
996 _scopes_data_offset = _metadata_offset + round_to(code_buffer->total_metadata_size(), wordSize); |
|
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|
997 |
|
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twisti
parents:
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|
998 _scopes_pcs_offset = _scopes_data_offset + round_to(debug_info->data_size (), oopSize); |
| 0 | 999 _dependencies_offset = _scopes_pcs_offset + adjust_pcs_size(debug_info->pcs_size()); |
| 1000 _handler_table_offset = _dependencies_offset + round_to(dependencies->size_in_bytes (), oopSize); | |
| 1001 _nul_chk_table_offset = _handler_table_offset + round_to(handler_table->size_in_bytes(), oopSize); | |
| 1002 _nmethod_end_offset = _nul_chk_table_offset + round_to(nul_chk_table->size_in_bytes(), oopSize); | |
| 1003 | |
| 1748 | 1004 _entry_point = code_begin() + offsets->value(CodeOffsets::Entry); |
| 1005 _verified_entry_point = code_begin() + offsets->value(CodeOffsets::Verified_Entry); | |
| 1006 _osr_entry_point = code_begin() + offsets->value(CodeOffsets::OSR_Entry); | |
| 0 | 1007 _exception_cache = NULL; |
| 1008 _pc_desc_cache.reset_to(scopes_pcs_begin()); | |
| 1009 | |
| 1010 // Copy contents of ScopeDescRecorder to nmethod | |
|
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diff
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|
1011 code_buffer->copy_values_to(this); |
| 0 | 1012 debug_info->copy_to(this); |
| 1013 dependencies->copy_to(this); | |
|
20191
fd81a5764900
8046231: G1: Code root location ... from nmethod ... not in strong code roots for region
pliden
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diff
changeset
|
1014 if (ScavengeRootsInCode) { |
|
fd81a5764900
8046231: G1: Code root location ... from nmethod ... not in strong code roots for region
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|
1015 if (detect_scavenge_root_oops()) { |
|
fd81a5764900
8046231: G1: Code root location ... from nmethod ... not in strong code roots for region
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parents:
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diff
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|
1016 CodeCache::add_scavenge_root_nmethod(this); |
|
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|
1017 } |
| 12080 | 1018 Universe::heap()->register_nmethod(this); |
|
989
148e5441d916
6863023: need non-perm oops in code cache for JSR 292
jrose
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|
1019 } |
|
148e5441d916
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diff
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|
1020 debug_only(verify_scavenge_root_oops()); |
| 0 | 1021 |
| 1022 CodeCache::commit(this); | |
| 1023 | |
| 1024 // Copy contents of ExceptionHandlerTable to nmethod | |
| 1025 handler_table->copy_to(this); | |
| 1026 nul_chk_table->copy_to(this); | |
| 1027 | |
| 1028 // we use the information of entry points to find out if a method is | |
| 1029 // static or non static | |
|
10879
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PTX support for Linux
Morris Meyer <morris.meyer@oracle.com>
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10627
diff
changeset
|
1030 assert(compiler->is_c2() || compiler->is_graal() || |
| 0 | 1031 _method->is_static() == (entry_point() == _verified_entry_point), |
| 1032 " entry points must be same for static methods and vice versa"); | |
| 1033 } | |
| 1034 | |
|
19729
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Add PrintNMethodsAtLevel option to hotspot
Tom Rodriguez <tom.rodriguez@oracle.com>
parents:
19728
diff
changeset
|
1035 bool printnmethods = PrintNMethods || PrintNMethodsAtLevel == _comp_level |
|
100
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6667042: PrintAssembly option does not work without special plugin
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|
1036 || CompilerOracle::should_print(_method) |
|
c7c777385a15
6667042: PrintAssembly option does not work without special plugin
jrose
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diff
changeset
|
1037 || CompilerOracle::has_option_string(_method, "PrintNMethods"); |
| 0 | 1038 if (printnmethods || PrintDebugInfo || PrintRelocations || PrintDependencies || PrintExceptionHandlers) { |
| 1039 print_nmethod(printnmethods); | |
| 1040 } | |
| 1041 } | |
| 1042 | |
| 1043 | |
| 1044 // Print a short set of xml attributes to identify this nmethod. The | |
| 1045 // output should be embedded in some other element. | |
| 1046 void nmethod::log_identity(xmlStream* log) const { | |
| 1047 log->print(" compile_id='%d'", compile_id()); | |
| 1048 const char* nm_kind = compile_kind(); | |
| 1049 if (nm_kind != NULL) log->print(" compile_kind='%s'", nm_kind); | |
| 1050 if (compiler() != NULL) { | |
| 1051 log->print(" compiler='%s'", compiler()->name()); | |
| 1052 } | |
| 1783 | 1053 if (TieredCompilation) { |
| 1054 log->print(" level='%d'", comp_level()); | |
| 1055 } | |
| 0 | 1056 } |
| 1057 | |
| 1058 | |
| 1059 #define LOG_OFFSET(log, name) \ | |
| 1060 if ((intptr_t)name##_end() - (intptr_t)name##_begin()) \ | |
| 1061 log->print(" " XSTR(name) "_offset='%d'" , \ | |
| 1062 (intptr_t)name##_begin() - (intptr_t)this) | |
| 1063 | |
| 1064 | |
| 1065 void nmethod::log_new_nmethod() const { | |
| 1066 if (LogCompilation && xtty != NULL) { | |
| 1067 ttyLocker ttyl; | |
| 1068 HandleMark hm; | |
| 1069 xtty->begin_elem("nmethod"); | |
| 1070 log_identity(xtty); | |
| 1748 | 1071 xtty->print(" entry='" INTPTR_FORMAT "' size='%d'", code_begin(), size()); |
| 0 | 1072 xtty->print(" address='" INTPTR_FORMAT "'", (intptr_t) this); |
| 1073 | |
| 1074 LOG_OFFSET(xtty, relocation); | |
|
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|
1075 LOG_OFFSET(xtty, consts); |
| 1748 | 1076 LOG_OFFSET(xtty, insts); |
| 0 | 1077 LOG_OFFSET(xtty, stub); |
| 1078 LOG_OFFSET(xtty, scopes_data); | |
| 1079 LOG_OFFSET(xtty, scopes_pcs); | |
| 1080 LOG_OFFSET(xtty, dependencies); | |
| 1081 LOG_OFFSET(xtty, handler_table); | |
| 1082 LOG_OFFSET(xtty, nul_chk_table); | |
| 1083 LOG_OFFSET(xtty, oops); | |
| 18041 | 1084 LOG_OFFSET(xtty, metadata); |
| 0 | 1085 |
| 1086 xtty->method(method()); | |
| 1087 xtty->stamp(); | |
| 1088 xtty->end_elem(); | |
| 1089 } | |
| 1090 } | |
| 1091 | |
| 1092 #undef LOG_OFFSET | |
| 1093 | |
| 1094 | |
| 1095 // Print out more verbose output usually for a newly created nmethod. | |
|
2405
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7022998: JSR 292 recursive method handle calls inline themselves infinitely
twisti
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2376
diff
changeset
|
1096 void nmethod::print_on(outputStream* st, const char* msg) const { |
| 0 | 1097 if (st != NULL) { |
| 1098 ttyLocker ttyl; | |
|
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|
1099 if (WizardMode) { |
|
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|
1100 CompileTask::print_compilation(st, this, msg, /*short_form:*/ true); |
|
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|
1101 st->print_cr(" (" INTPTR_FORMAT ")", this); |
|
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|
1102 } else { |
|
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|
1103 CompileTask::print_compilation(st, this, msg, /*short_form:*/ false); |
|
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|
1104 } |
| 0 | 1105 } |
| 1106 } | |
| 1107 | |
| 1108 | |
| 1109 void nmethod::print_nmethod(bool printmethod) { | |
| 1110 ttyLocker ttyl; // keep the following output all in one block | |
| 1111 if (xtty != NULL) { | |
| 1112 xtty->begin_head("print_nmethod"); | |
| 1113 xtty->stamp(); | |
| 1114 xtty->end_head(); | |
| 1115 } | |
| 1116 // print the header part first | |
| 1117 print(); | |
| 1118 // then print the requested information | |
| 1119 if (printmethod) { | |
| 1120 print_code(); | |
| 1121 print_pcs(); | |
|
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|
1122 if (oop_maps()) { |
|
1d7922586cf6
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|
1123 oop_maps()->print(); |
|
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|
1124 } |
| 0 | 1125 } |
|
19728
f3eed864acdc
Support printing options for more nmethod parts
Tom Rodriguez <tom.rodriguez@oracle.com>
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diff
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|
1126 if (PrintDebugInfo || CompilerOracle::has_option_string(_method, "PrintDebugInfo")) { |
| 0 | 1127 print_scopes(); |
| 1128 } | |
|
19728
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diff
changeset
|
1129 if (PrintRelocations || CompilerOracle::has_option_string(_method, "PrintRelocations")) { |
| 0 | 1130 print_relocations(); |
| 1131 } | |
|
19728
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Support printing options for more nmethod parts
Tom Rodriguez <tom.rodriguez@oracle.com>
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diff
changeset
|
1132 if (PrintDependencies || CompilerOracle::has_option_string(_method, "PrintDependencies")) { |
| 0 | 1133 print_dependencies(); |
| 1134 } | |
| 1135 if (PrintExceptionHandlers) { | |
| 1136 print_handler_table(); | |
| 1137 print_nul_chk_table(); | |
| 1138 } | |
| 1139 if (xtty != NULL) { | |
| 1140 xtty->tail("print_nmethod"); | |
| 1141 } | |
| 1142 } | |
| 1143 | |
| 1144 | |
|
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1a5913bf5e19
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|
1145 // Promote one word from an assembly-time handle to a live embedded oop. |
|
1a5913bf5e19
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1146 inline void nmethod::initialize_immediate_oop(oop* dest, jobject handle) { |
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1147 if (handle == NULL || |
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1148 // As a special case, IC oops are initialized to 1 or -1. |
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1149 handle == (jobject) Universe::non_oop_word()) { |
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1150 (*dest) = (oop) handle; |
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1151 } else { |
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1152 (*dest) = JNIHandles::resolve_non_null(handle); |
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1153 } |
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1154 } |
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1155 |
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1156 |
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1157 // Have to have the same name because it's called by a template |
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1158 void nmethod::copy_values(GrowableArray<jobject>* array) { |
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1159 int length = array->length(); |
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1160 assert((address)(oops_begin() + length) <= (address)oops_end(), "oops big enough"); |
|
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1161 oop* dest = oops_begin(); |
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1162 for (int index = 0 ; index < length; index++) { |
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1163 initialize_immediate_oop(&dest[index], array->at(index)); |
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1164 } |
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1165 |
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1166 // Now we can fix up all the oops in the code. We need to do this |
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1167 // in the code because the assembler uses jobjects as placeholders. |
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1168 // The code and relocations have already been initialized by the |
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1169 // CodeBlob constructor, so it is valid even at this early point to |
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1170 // iterate over relocations and patch the code. |
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1171 fix_oop_relocations(NULL, NULL, /*initialize_immediates=*/ true); |
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1172 } |
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1173 |
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1174 void nmethod::copy_values(GrowableArray<Metadata*>* array) { |
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1175 int length = array->length(); |
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1176 assert((address)(metadata_begin() + length) <= (address)metadata_end(), "big enough"); |
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1177 Metadata** dest = metadata_begin(); |
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1178 for (int index = 0 ; index < length; index++) { |
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1179 dest[index] = array->at(index); |
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1180 } |
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1181 } |
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1182 |
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1183 bool nmethod::is_at_poll_return(address pc) { |
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1184 RelocIterator iter(this, pc, pc+1); |
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1185 while (iter.next()) { |
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1186 if (iter.type() == relocInfo::poll_return_type) |
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1187 return true; |
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1188 } |
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1189 return false; |
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1190 } |
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1191 |
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1192 |
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1193 bool nmethod::is_at_poll_or_poll_return(address pc) { |
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1194 RelocIterator iter(this, pc, pc+1); |
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1195 while (iter.next()) { |
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1196 relocInfo::relocType t = iter.type(); |
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1197 if (t == relocInfo::poll_return_type || t == relocInfo::poll_type) |
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1198 return true; |
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1199 } |
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1200 return false; |
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1201 } |
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1202 |
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1203 |
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1204 void nmethod::fix_oop_relocations(address begin, address end, bool initialize_immediates) { |
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1205 // re-patch all oop-bearing instructions, just in case some oops moved |
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1206 RelocIterator iter(this, begin, end); |
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1207 while (iter.next()) { |
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1208 if (iter.type() == relocInfo::oop_type) { |
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1209 oop_Relocation* reloc = iter.oop_reloc(); |
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1210 if (initialize_immediates && reloc->oop_is_immediate()) { |
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1211 oop* dest = reloc->oop_addr(); |
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1212 initialize_immediate_oop(dest, (jobject) *dest); |
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1213 } |
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1214 // Refresh the oop-related bits of this instruction. |
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1215 reloc->fix_oop_relocation(); |
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1216 } else if (iter.type() == relocInfo::metadata_type) { |
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1217 metadata_Relocation* reloc = iter.metadata_reloc(); |
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1218 reloc->fix_metadata_relocation(); |
|
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1219 } |
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1220 } |
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1221 } |
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1222 |
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1223 |
|
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1224 void nmethod::verify_oop_relocations() { |
|
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1225 // Ensure sure that the code matches the current oop values |
|
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1226 RelocIterator iter(this, NULL, NULL); |
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1227 while (iter.next()) { |
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1228 if (iter.type() == relocInfo::oop_type) { |
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1229 oop_Relocation* reloc = iter.oop_reloc(); |
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1230 if (!reloc->oop_is_immediate()) { |
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1231 reloc->verify_oop_relocation(); |
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1232 } |
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1233 } |
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1234 } |
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1235 } |
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|
1236 |
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1237 |
| 0 | 1238 ScopeDesc* nmethod::scope_desc_at(address pc) { |
| 1239 PcDesc* pd = pc_desc_at(pc); | |
| 1240 guarantee(pd != NULL, "scope must be present"); | |
| 1241 return new ScopeDesc(this, pd->scope_decode_offset(), | |
| 9707 | 1242 pd->obj_decode_offset(), pd->should_reexecute(), pd->rethrow_exception(), |
|
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1243 pd->return_oop()); |
| 0 | 1244 } |
| 1245 | |
| 1246 | |
| 1247 void nmethod::clear_inline_caches() { | |
| 1248 assert(SafepointSynchronize::is_at_safepoint(), "cleaning of IC's only allowed at safepoint"); | |
| 1249 if (is_zombie()) { | |
| 1250 return; | |
| 1251 } | |
| 1252 | |
| 1253 RelocIterator iter(this); | |
| 1254 while (iter.next()) { | |
| 1255 iter.reloc()->clear_inline_cache(); | |
| 1256 } | |
| 1257 } | |
| 1258 | |
| 1259 | |
| 1260 void nmethod::cleanup_inline_caches() { | |
| 1261 | |
|
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1262 assert_locked_or_safepoint(CompiledIC_lock); |
| 0 | 1263 |
| 1264 // If the method is not entrant or zombie then a JMP is plastered over the | |
| 1265 // first few bytes. If an oop in the old code was there, that oop | |
| 1266 // should not get GC'd. Skip the first few bytes of oops on | |
| 1267 // not-entrant methods. | |
| 1268 address low_boundary = verified_entry_point(); | |
| 1269 if (!is_in_use()) { | |
| 1270 low_boundary += NativeJump::instruction_size; | |
| 1271 // %%% Note: On SPARC we patch only a 4-byte trap, not a full NativeJump. | |
| 1272 // This means that the low_boundary is going to be a little too high. | |
| 1273 // This shouldn't matter, since oops of non-entrant methods are never used. | |
| 1274 // In fact, why are we bothering to look at oops in a non-entrant method?? | |
| 1275 } | |
| 1276 | |
| 1277 // Find all calls in an nmethod, and clear the ones that points to zombie methods | |
| 1278 ResourceMark rm; | |
| 1279 RelocIterator iter(this, low_boundary); | |
| 1280 while(iter.next()) { | |
| 1281 switch(iter.type()) { | |
| 1282 case relocInfo::virtual_call_type: | |
| 1283 case relocInfo::opt_virtual_call_type: { | |
|
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1284 CompiledIC *ic = CompiledIC_at(&iter); |
| 0 | 1285 // Ok, to lookup references to zombies here |
| 1286 CodeBlob *cb = CodeCache::find_blob_unsafe(ic->ic_destination()); | |
| 1287 if( cb != NULL && cb->is_nmethod() ) { | |
| 1288 nmethod* nm = (nmethod*)cb; | |
| 1289 // Clean inline caches pointing to both zombie and not_entrant methods | |
| 1202 | 1290 if (!nm->is_in_use() || (nm->method()->code() != nm)) ic->set_to_clean(); |
| 0 | 1291 } |
| 1292 break; | |
| 1293 } | |
| 1294 case relocInfo::static_call_type: { | |
| 1295 CompiledStaticCall *csc = compiledStaticCall_at(iter.reloc()); | |
| 1296 CodeBlob *cb = CodeCache::find_blob_unsafe(csc->destination()); | |
| 1297 if( cb != NULL && cb->is_nmethod() ) { | |
| 1298 nmethod* nm = (nmethod*)cb; | |
| 1299 // Clean inline caches pointing to both zombie and not_entrant methods | |
| 1202 | 1300 if (!nm->is_in_use() || (nm->method()->code() != nm)) csc->set_to_clean(); |
| 0 | 1301 } |
| 1302 break; | |
| 1303 } | |
| 1304 } | |
| 1305 } | |
| 1306 } | |
| 1307 | |
|
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1308 void nmethod::verify_clean_inline_caches() { |
|
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1309 assert_locked_or_safepoint(CompiledIC_lock); |
|
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1310 |
|
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1311 // If the method is not entrant or zombie then a JMP is plastered over the |
|
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1312 // first few bytes. If an oop in the old code was there, that oop |
|
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|
1313 // should not get GC'd. Skip the first few bytes of oops on |
|
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|
1314 // not-entrant methods. |
|
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|
1315 address low_boundary = verified_entry_point(); |
|
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1316 if (!is_in_use()) { |
|
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1317 low_boundary += NativeJump::instruction_size; |
|
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1318 // %%% Note: On SPARC we patch only a 4-byte trap, not a full NativeJump. |
|
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1319 // This means that the low_boundary is going to be a little too high. |
|
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1320 // This shouldn't matter, since oops of non-entrant methods are never used. |
|
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1321 // In fact, why are we bothering to look at oops in a non-entrant method?? |
|
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|
1322 } |
|
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|
1323 |
|
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|
1324 ResourceMark rm; |
|
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|
1325 RelocIterator iter(this, low_boundary); |
|
2c6ef90f030a
8049421: G1 Class Unloading after completing a concurrent mark cycle
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|
1326 while(iter.next()) { |
|
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1327 switch(iter.type()) { |
|
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1328 case relocInfo::virtual_call_type: |
|
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changeset
|
1329 case relocInfo::opt_virtual_call_type: { |
|
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1330 CompiledIC *ic = CompiledIC_at(&iter); |
|
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1331 // Ok, to lookup references to zombies here |
|
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1332 CodeBlob *cb = CodeCache::find_blob_unsafe(ic->ic_destination()); |
|
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1333 if( cb != NULL && cb->is_nmethod() ) { |
|
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|
1334 nmethod* nm = (nmethod*)cb; |
|
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1335 // Verify that inline caches pointing to both zombie and not_entrant methods are clean |
|
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1336 if (!nm->is_in_use() || (nm->method()->code() != nm)) { |
|
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|
1337 assert(ic->is_clean(), "IC should be clean"); |
|
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|
1338 } |
|
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|
1339 } |
|
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changeset
|
1340 break; |
|
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|
1341 } |
|
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|
1342 case relocInfo::static_call_type: { |
|
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1343 CompiledStaticCall *csc = compiledStaticCall_at(iter.reloc()); |
|
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1344 CodeBlob *cb = CodeCache::find_blob_unsafe(csc->destination()); |
|
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|
1345 if( cb != NULL && cb->is_nmethod() ) { |
|
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|
1346 nmethod* nm = (nmethod*)cb; |
|
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|
1347 // Verify that inline caches pointing to both zombie and not_entrant methods are clean |
|
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1348 if (!nm->is_in_use() || (nm->method()->code() != nm)) { |
|
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1349 assert(csc->is_clean(), "IC should be clean"); |
|
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|
1350 } |
|
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|
1351 } |
|
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changeset
|
1352 break; |
|
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changeset
|
1353 } |
|
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|
1354 } |
|
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|
1355 } |
|
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|
1356 } |
|
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|
1357 |
|
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|
1358 int nmethod::verify_icholder_relocations() { |
|
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|
1359 int count = 0; |
|
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|
1360 |
|
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|
1361 RelocIterator iter(this); |
|
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1362 while(iter.next()) { |
|
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1363 if (iter.type() == relocInfo::virtual_call_type) { |
|
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|
1364 if (CompiledIC::is_icholder_call_site(iter.virtual_call_reloc())) { |
|
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1365 CompiledIC *ic = CompiledIC_at(&iter); |
|
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|
1366 if (TraceCompiledIC) { |
|
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1367 tty->print("noticed icholder " INTPTR_FORMAT " ", p2i(ic->cached_icholder())); |
|
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|
1368 ic->print(); |
|
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|
1369 } |
|
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changeset
|
1370 assert(ic->cached_icholder() != NULL, "must be non-NULL"); |
|
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|
1371 count++; |
|
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|
1372 } |
|
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|
1373 } |
|
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|
1374 } |
|
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|
1375 |
|
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|
1376 return count; |
|
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|
1377 } |
|
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|
1378 |
|
989
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parents:
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diff
changeset
|
1379 // This is a private interface with the sweeper. |
| 0 | 1380 void nmethod::mark_as_seen_on_stack() { |
|
12324
510fbd28919c
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parents:
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diff
changeset
|
1381 assert(is_alive(), "Must be an alive method"); |
|
1644
2a47bd84841f
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|
1382 // Set the traversal mark to ensure that the sweeper does 2 |
|
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|
1383 // cleaning passes before moving to zombie. |
| 0 | 1384 set_stack_traversal_mark(NMethodSweeper::traversal_count()); |
| 1385 } | |
| 1386 | |
|
2342
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changeset
|
1387 // Tell if a non-entrant method can be converted to a zombie (i.e., |
|
46a56fac55c7
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diff
changeset
|
1388 // there are no activations on the stack, not in use by the VM, |
|
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changeset
|
1389 // and not in use by the ServiceThread) |
| 0 | 1390 bool nmethod::can_not_entrant_be_converted() { |
| 1391 assert(is_not_entrant(), "must be a non-entrant method"); | |
| 1392 | |
| 1393 // Since the nmethod sweeper only does partial sweep the sweeper's traversal | |
| 1394 // count can be greater than the stack traversal count before it hits the | |
| 1395 // nmethod for the second time. | |
|
2342
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changeset
|
1396 return stack_traversal_mark()+1 < NMethodSweeper::traversal_count() && |
|
46a56fac55c7
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changeset
|
1397 !is_locked_by_vm(); |
| 0 | 1398 } |
| 1399 | |
| 1400 void nmethod::inc_decompile_count() { | |
| 9707 | 1401 if (!is_compiled_by_c2() && !is_compiled_by_graal()) return; |
| 0 | 1402 // Could be gated by ProfileTraps, but do not bother... |
|
6725
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6266
diff
changeset
|
1403 Method* m = method(); |
| 0 | 1404 if (m == NULL) return; |
|
6725
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changeset
|
1405 MethodData* mdo = m->method_data(); |
| 0 | 1406 if (mdo == NULL) return; |
|
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|
1407 // There is a benign race here. See comments in methodData.hpp. |
| 0 | 1408 mdo->inc_decompile_count(); |
| 1409 } | |
| 1410 | |
|
20278
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|
1411 void nmethod::increase_unloading_clock() { |
|
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1412 _global_unloading_clock++; |
|
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|
1413 if (_global_unloading_clock == 0) { |
|
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|
1414 // _nmethods are allocated with _unloading_clock == 0, |
|
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|
1415 // so 0 is never used as a clock value. |
|
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|
1416 _global_unloading_clock = 1; |
|
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|
1417 } |
|
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|
1418 } |
|
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|
1419 |
|
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|
1420 void nmethod::set_unloading_clock(unsigned char unloading_clock) { |
|
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|
1421 OrderAccess::release_store((volatile jubyte*)&_unloading_clock, unloading_clock); |
|
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changeset
|
1422 } |
|
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changeset
|
1423 |
|
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changeset
|
1424 unsigned char nmethod::unloading_clock() { |
|
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changeset
|
1425 return (unsigned char)OrderAccess::load_acquire((volatile jubyte*)&_unloading_clock); |
|
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|
1426 } |
|
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changeset
|
1427 |
| 0 | 1428 void nmethod::make_unloaded(BoolObjectClosure* is_alive, oop cause) { |
| 1429 | |
| 1430 post_compiled_method_unload(); | |
| 1431 | |
| 1432 // Since this nmethod is being unloaded, make sure that dependencies | |
| 1433 // recorded in instanceKlasses get flushed and pass non-NULL closure to | |
| 1434 // indicate that this work is being done during a GC. | |
| 1435 assert(Universe::heap()->is_gc_active(), "should only be called during gc"); | |
| 1436 assert(is_alive != NULL, "Should be non-NULL"); | |
| 1437 // A non-NULL is_alive closure indicates that this is being called during GC. | |
| 1438 flush_dependencies(is_alive); | |
| 1439 | |
| 1440 // Break cycle between nmethod & method | |
| 1441 if (TraceClassUnloading && WizardMode) { | |
| 1442 tty->print_cr("[Class unloading: Making nmethod " INTPTR_FORMAT | |
|
6725
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changeset
|
1443 " unloadable], Method*(" INTPTR_FORMAT |
| 0 | 1444 "), cause(" INTPTR_FORMAT ")", |
| 1445 this, (address)_method, (address)cause); | |
|
989
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jrose
parents:
931
diff
changeset
|
1446 if (!Universe::heap()->is_gc_active()) |
|
148e5441d916
6863023: need non-perm oops in code cache for JSR 292
jrose
parents:
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diff
changeset
|
1447 cause->klass()->print(); |
| 0 | 1448 } |
| 941 | 1449 // Unlink the osr method, so we do not look this up again |
| 1450 if (is_osr_method()) { | |
| 1451 invalidate_osr_method(); | |
| 1452 } | |
|
6725
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coleenp
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diff
changeset
|
1453 // If _method is already NULL the Method* is about to be unloaded, |
| 0 | 1454 // so we don't have to break the cycle. Note that it is possible to |
|
6725
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6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6266
diff
changeset
|
1455 // 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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diff
changeset
|
1456 // it is pointing to some oop (other than the Method*) being unloaded. |
| 0 | 1457 if (_method != NULL) { |
|
6725
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diff
changeset
|
1458 // OSR methods point to the Method*, but the Method* does not |
| 0 | 1459 // point back! |
| 1460 if (_method->code() == this) { | |
| 1461 _method->clear_code(); // Break a cycle | |
| 1462 } | |
| 1463 _method = NULL; // Clear the method of this dead nmethod | |
| 1464 } | |
| 9707 | 1465 |
| 1466 #ifdef GRAAL | |
| 1467 // The method can only be unloaded after the pointer to the installed code | |
| 1468 // Java wrapper is no longer alive. Here we need to clear out this weak | |
| 1469 // reference to the dead object. | |
| 1470 if (_graal_installed_code != NULL) { | |
|
15161
2c940b1a48d8
Convert InstalledCode from an interface into an abstract class.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
14968
diff
changeset
|
1471 InstalledCode::set_address(_graal_installed_code, 0); |
| 9707 | 1472 _graal_installed_code = NULL; |
| 1473 } | |
| 1474 #endif | |
| 1475 | |
| 0 | 1476 // Make the class unloaded - i.e., change state and notify sweeper |
|
1538
bfe29ec02863
6950075: nmethod sweeper should operate concurrently
never
parents:
1490
diff
changeset
|
1477 assert(SafepointSynchronize::is_at_safepoint(), "must be at safepoint"); |
| 0 | 1478 if (is_in_use()) { |
| 1479 // Transitioning directly from live to unloaded -- so | |
| 1480 // we need to force a cache clean-up; remember this | |
| 1481 // for later on. | |
| 1482 CodeCache::set_needs_cache_clean(true); | |
| 1483 } | |
|
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|
1484 |
|
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|
1485 // Unregister must be done before the state change |
|
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|
1486 Universe::heap()->unregister_nmethod(this); |
|
2c6ef90f030a
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|
1487 |
|
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|
1488 _state = unloaded; |
| 0 | 1489 |
|
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|
1490 // Log the unloading. |
|
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|
1491 log_state_change(); |
|
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|
1492 |
|
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|
1493 // The Method* is gone at this point |
| 0 | 1494 assert(_method == NULL, "Tautology"); |
| 1495 | |
|
989
148e5441d916
6863023: need non-perm oops in code cache for JSR 292
jrose
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diff
changeset
|
1496 set_osr_link(NULL); |
|
148e5441d916
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|
1497 //set_scavenge_root_link(NULL); // done by prune_scavenge_root_nmethods |
|
13074
78da3894b86f
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|
1498 NMethodSweeper::report_state_change(this); |
| 0 | 1499 } |
| 1500 | |
| 1501 void nmethod::invalidate_osr_method() { | |
| 1502 assert(_entry_bci != InvocationEntryBci, "wrong kind of nmethod"); | |
| 1503 // Remove from list of active nmethods | |
| 1504 if (method() != NULL) | |
|
6940
18fb7da42534
8000725: NPG: method_holder() and pool_holder() and pool_holder field should be InstanceKlass
coleenp
parents:
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diff
changeset
|
1505 method()->method_holder()->remove_osr_nmethod(this); |
| 0 | 1506 // Set entry as invalid |
| 1507 _entry_bci = InvalidOSREntryBci; | |
| 1508 } | |
| 1509 | |
|
1109
032260830071
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|
1510 void nmethod::log_state_change() const { |
| 0 | 1511 if (LogCompilation) { |
| 1512 if (xtty != NULL) { | |
| 1513 ttyLocker ttyl; // keep the following output all in one block | |
|
1644
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|
1514 if (_state == unloaded) { |
|
1109
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|
1515 xtty->begin_elem("make_unloaded thread='" UINTX_FORMAT "'", |
|
032260830071
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|
1516 os::current_thread_id()); |
|
032260830071
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|
1517 } else { |
|
032260830071
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diff
changeset
|
1518 xtty->begin_elem("make_not_entrant thread='" UINTX_FORMAT "'%s", |
|
032260830071
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|
1519 os::current_thread_id(), |
|
1644
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|
1520 (_state == zombie ? " zombie='1'" : "")); |
|
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|
1521 } |
| 0 | 1522 log_identity(xtty); |
| 1523 xtty->stamp(); | |
| 1524 xtty->end_elem(); | |
| 1525 } | |
| 1526 } | |
|
1644
2a47bd84841f
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diff
changeset
|
1527 if (PrintCompilation && _state != unloaded) { |
|
2405
3d58a4983660
7022998: JSR 292 recursive method handle calls inline themselves infinitely
twisti
parents:
2376
diff
changeset
|
1528 print_on(tty, _state == zombie ? "made zombie" : "made not entrant"); |
| 0 | 1529 } |
| 1530 } | |
| 1531 | |
|
13074
78da3894b86f
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parents:
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changeset
|
1532 /** |
|
78da3894b86f
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changeset
|
1533 * Common functionality for both make_not_entrant and make_zombie |
|
78da3894b86f
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diff
changeset
|
1534 */ |
| 1141 | 1535 bool nmethod::make_not_entrant_or_zombie(unsigned int state) { |
| 0 | 1536 assert(state == zombie || state == not_entrant, "must be zombie or not_entrant"); |
|
2342
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dcubed
parents:
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|
1537 assert(!is_zombie(), "should not already be a zombie"); |
| 0 | 1538 |
|
1644
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|
1539 // Make sure neither the nmethod nor the method is flushed in case of a safepoint in code below. |
| 0 | 1540 nmethodLocker nml(this); |
|
1644
2a47bd84841f
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|
1541 methodHandle the_method(method()); |
| 1726 | 1542 No_Safepoint_Verifier nsv; |
| 0 | 1543 |
| 12080 | 1544 // during patching, depending on the nmethod state we must notify the GC that |
| 1545 // code has been unloaded, unregistering it. We cannot do this right while | |
| 1546 // holding the Patching_lock because we need to use the CodeCache_lock. This | |
| 1547 // would be prone to deadlocks. | |
| 1548 // This flag is used to remember whether we need to later lock and unregister. | |
| 1549 bool nmethod_needs_unregister = false; | |
| 1550 | |
| 0 | 1551 { |
|
1109
032260830071
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|
1552 // invalidate osr nmethod before acquiring the patching lock since |
|
032260830071
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changeset
|
1553 // they both acquire leaf locks and we don't want a deadlock. |
|
032260830071
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changeset
|
1554 // This logic is equivalent to the logic below for patching the |
|
032260830071
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diff
changeset
|
1555 // verified entry point of regular methods. |
|
032260830071
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changeset
|
1556 if (is_osr_method()) { |
|
032260830071
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|
1557 // this effectively makes the osr nmethod not entrant |
|
032260830071
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diff
changeset
|
1558 invalidate_osr_method(); |
|
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changeset
|
1559 } |
|
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diff
changeset
|
1560 |
| 0 | 1561 // Enter critical section. Does not block for safepoint. |
| 1562 MutexLockerEx pl(Patching_lock, Mutex::_no_safepoint_check_flag); | |
|
1109
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|
1563 |
|
1644
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diff
changeset
|
1564 if (_state == state) { |
|
1109
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diff
changeset
|
1565 // another thread already performed this transition so nothing |
|
032260830071
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diff
changeset
|
1566 // to do, but return false to indicate this. |
|
032260830071
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never
parents:
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diff
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|
1567 return false; |
|
032260830071
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never
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994
diff
changeset
|
1568 } |
|
032260830071
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diff
changeset
|
1569 |
| 0 | 1570 // The caller can be calling the method statically or through an inline |
| 1571 // cache call. | |
|
1109
032260830071
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diff
changeset
|
1572 if (!is_osr_method() && !is_not_entrant()) { |
| 0 | 1573 NativeJump::patch_verified_entry(entry_point(), verified_entry_point(), |
| 1574 SharedRuntime::get_handle_wrong_method_stub()); | |
| 1575 } | |
| 1576 | |
|
1644
2a47bd84841f
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diff
changeset
|
1577 if (is_in_use()) { |
|
2a47bd84841f
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diff
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|
1578 // It's a true state change, so mark the method as decompiled. |
|
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diff
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|
1579 // Do it only for transition from alive. |
|
2a47bd84841f
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diff
changeset
|
1580 inc_decompile_count(); |
|
2a47bd84841f
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diff
changeset
|
1581 } |
|
1206
87684f1a88b5
6614597: Performance variability in jvm2008 xml.validation
kvn
parents:
1204
diff
changeset
|
1582 |
| 12080 | 1583 // If the state is becoming a zombie, signal to unregister the nmethod with |
| 1584 // the heap. | |
| 1585 // This nmethod may have already been unloaded during a full GC. | |
| 1586 if ((state == zombie) && !is_unloaded()) { | |
| 1587 nmethod_needs_unregister = true; | |
| 1588 } | |
| 1589 | |
|
12324
510fbd28919c
8020151: PSR:PERF Large performance regressions when code cache is filled
anoll
parents:
12175
diff
changeset
|
1590 // 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
|
1591 // 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
|
1592 // 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
|
1593 // for stack scanning. |
|
510fbd28919c
8020151: PSR:PERF Large performance regressions when code cache is filled
anoll
parents:
12175
diff
changeset
|
1594 if (state == not_entrant) { |
|
510fbd28919c
8020151: PSR:PERF Large performance regressions when code cache is filled
anoll
parents:
12175
diff
changeset
|
1595 mark_as_seen_on_stack(); |
|
510fbd28919c
8020151: PSR:PERF Large performance regressions when code cache is filled
anoll
parents:
12175
diff
changeset
|
1596 OrderAccess::storestore(); |
|
510fbd28919c
8020151: PSR:PERF Large performance regressions when code cache is filled
anoll
parents:
12175
diff
changeset
|
1597 } |
|
510fbd28919c
8020151: PSR:PERF Large performance regressions when code cache is filled
anoll
parents:
12175
diff
changeset
|
1598 |
| 0 | 1599 // Change state |
|
1644
2a47bd84841f
6965184: possible races in make_not_entrant_or_zombie
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diff
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|
1600 _state = state; |
|
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|
1601 |
|
032260830071
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diff
changeset
|
1602 // Log the transition once |
|
032260830071
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994
diff
changeset
|
1603 log_state_change(); |
|
032260830071
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994
diff
changeset
|
1604 |
|
1644
2a47bd84841f
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diff
changeset
|
1605 // Remove nmethod from method. |
|
2a47bd84841f
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parents:
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diff
changeset
|
1606 // We need to check if both the _code and _from_compiled_code_entry_point |
|
2a47bd84841f
6965184: possible races in make_not_entrant_or_zombie
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diff
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|
1607 // 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
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|
1608 // in Method* as seen in bugid 4947125. |
|
1644
2a47bd84841f
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parents:
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diff
changeset
|
1609 // If the vep() points to the zombie nmethod, the memory for the nmethod |
|
2a47bd84841f
6965184: possible races in make_not_entrant_or_zombie
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parents:
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diff
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|
1610 // could be flushed and the compiler and vtable stubs could still call |
|
2a47bd84841f
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diff
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|
1611 // through it. |
|
2a47bd84841f
6965184: possible races in make_not_entrant_or_zombie
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diff
changeset
|
1612 if (method() != NULL && (method()->code() == this || |
|
2a47bd84841f
6965184: possible races in make_not_entrant_or_zombie
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diff
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|
1613 method()->from_compiled_entry() == verified_entry_point())) { |
|
2a47bd84841f
6965184: possible races in make_not_entrant_or_zombie
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parents:
1616
diff
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|
1614 HandleMark hm; |
|
2a47bd84841f
6965184: possible races in make_not_entrant_or_zombie
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parents:
1616
diff
changeset
|
1615 method()->clear_code(); |
|
2a47bd84841f
6965184: possible races in make_not_entrant_or_zombie
never
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diff
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|
1616 } |
| 0 | 1617 } // leave critical region under Patching_lock |
| 1618 | |
|
1538
bfe29ec02863
6950075: nmethod sweeper should operate concurrently
never
parents:
1490
diff
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|
1619 // When the nmethod becomes zombie it is no longer alive so the |
|
bfe29ec02863
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never
parents:
1490
diff
changeset
|
1620 // dependencies must be flushed. nmethods in the not_entrant |
|
bfe29ec02863
6950075: nmethod sweeper should operate concurrently
never
parents:
1490
diff
changeset
|
1621 // state will be flushed later when the transition to zombie |
|
bfe29ec02863
6950075: nmethod sweeper should operate concurrently
never
parents:
1490
diff
changeset
|
1622 // happens or they get unloaded. |
|
bfe29ec02863
6950075: nmethod sweeper should operate concurrently
never
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1490
diff
changeset
|
1623 if (state == zombie) { |
| 1726 | 1624 { |
| 1625 // Flushing dependecies must be done before any possible | |
| 1626 // safepoint can sneak in, otherwise the oops used by the | |
| 1627 // dependency logic could have become stale. | |
| 1628 MutexLockerEx mu(CodeCache_lock, Mutex::_no_safepoint_check_flag); | |
| 12080 | 1629 if (nmethod_needs_unregister) { |
| 1630 Universe::heap()->unregister_nmethod(this); | |
| 1631 } | |
| 1726 | 1632 flush_dependencies(NULL); |
| 1633 } | |
|
1644
2a47bd84841f
6965184: possible races in make_not_entrant_or_zombie
never
parents:
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diff
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|
1634 |
|
2342
46a56fac55c7
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dcubed
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diff
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|
1635 // zombie only - if a JVMTI agent has enabled the CompiledMethodUnload |
|
46a56fac55c7
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dcubed
parents:
2321
diff
changeset
|
1636 // 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:
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diff
changeset
|
1637 // 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
|
1638 // marked it for unloading). JvmtiDeferredEventQueue support means |
|
46a56fac55c7
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dcubed
parents:
2321
diff
changeset
|
1639 // we no longer go to a safepoint here. |
|
46a56fac55c7
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dcubed
parents:
2321
diff
changeset
|
1640 post_compiled_method_unload(); |
| 1726 | 1641 |
| 1642 #ifdef ASSERT | |
| 1643 // It's no longer safe to access the oops section since zombie | |
| 1644 // nmethods aren't scanned for GC. | |
| 1645 _oops_are_stale = true; | |
| 1646 #endif | |
|
12161
e1fbb86b47e4
8016277: Crash in nmethod::is_compiled_by_c1() on x86
roland
parents:
12080
diff
changeset
|
1647 // 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
|
1648 // nmethod is in zombie state |
|
e1fbb86b47e4
8016277: Crash in nmethod::is_compiled_by_c1() on x86
roland
parents:
12080
diff
changeset
|
1649 set_method(NULL); |
|
1538
bfe29ec02863
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never
parents:
1490
diff
changeset
|
1650 } else { |
|
bfe29ec02863
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never
parents:
1490
diff
changeset
|
1651 assert(state == not_entrant, "other cases may need to be handled differently"); |
|
bfe29ec02863
6950075: nmethod sweeper should operate concurrently
never
parents:
1490
diff
changeset
|
1652 } |
|
12414
98031e66de15
Fix unittests
Christos Kotselidis <christos.kotselidis@oracle.com>
parents:
12411
diff
changeset
|
1653 #ifdef GRAAL |
|
13230
01080e31692d
fixed crash when TraceCreateZombies is enabled
Doug Simon <doug.simon@oracle.com>
parents:
13102
diff
changeset
|
1654 if (_graal_installed_code != NULL) { |
|
15161
2c940b1a48d8
Convert InstalledCode from an interface into an abstract class.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
14968
diff
changeset
|
1655 // Break the link between nmethod and InstalledCode such that the nmethod can subsequently be flushed safely. |
|
2c940b1a48d8
Convert InstalledCode from an interface into an abstract class.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
14968
diff
changeset
|
1656 InstalledCode::set_address(_graal_installed_code, 0); |
|
13230
01080e31692d
fixed crash when TraceCreateZombies is enabled
Doug Simon <doug.simon@oracle.com>
parents:
13102
diff
changeset
|
1657 } |
|
12414
98031e66de15
Fix unittests
Christos Kotselidis <christos.kotselidis@oracle.com>
parents:
12411
diff
changeset
|
1658 #endif |
|
1538
bfe29ec02863
6950075: nmethod sweeper should operate concurrently
never
parents:
1490
diff
changeset
|
1659 |
| 0 | 1660 if (TraceCreateZombies) { |
| 9707 | 1661 ResourceMark m; |
|
13230
01080e31692d
fixed crash when TraceCreateZombies is enabled
Doug Simon <doug.simon@oracle.com>
parents:
13102
diff
changeset
|
1662 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 | 1663 } |
| 1664 | |
|
13074
78da3894b86f
8027593: performance drop with constrained codecache starting with hs25 b111
anoll
parents:
13071
diff
changeset
|
1665 NMethodSweeper::report_state_change(this); |
|
1109
032260830071
5057818: codecache full and compiler disabled in bigapps fastdebug run
never
parents:
994
diff
changeset
|
1666 return true; |
| 0 | 1667 } |
| 1668 | |
| 1669 void nmethod::flush() { | |
| 1670 // Note that there are no valid oops in the nmethod anymore. | |
| 1671 assert(is_zombie() || (is_osr_method() && is_unloaded()), "must be a zombie method"); | |
| 1672 assert(is_marked_for_reclamation() || (is_osr_method() && is_unloaded()), "must be marked for reclamation"); | |
| 1673 | |
| 1674 assert (!is_locked_by_vm(), "locked methods shouldn't be flushed"); | |
|
1538
bfe29ec02863
6950075: nmethod sweeper should operate concurrently
never
parents:
1490
diff
changeset
|
1675 assert_locked_or_safepoint(CodeCache_lock); |
| 0 | 1676 |
| 1677 // completely deallocate this method | |
|
4872
aa3d708d67c4
7141200: log some interesting information in ring buffers for crashes
never
parents:
4006
diff
changeset
|
1678 Events::log(JavaThread::current(), "flushing nmethod " INTPTR_FORMAT, this); |
| 0 | 1679 if (PrintMethodFlushing) { |
| 1202 | 1680 tty->print_cr("*flushing nmethod %3d/" INTPTR_FORMAT ". Live blobs:" UINT32_FORMAT "/Free CodeCache:" SIZE_FORMAT "Kb", |
| 1681 _compile_id, this, CodeCache::nof_blobs(), CodeCache::unallocated_capacity()/1024); | |
| 0 | 1682 } |
| 1683 | |
| 1684 // We need to deallocate any ExceptionCache data. | |
| 1685 // Note that we do not need to grab the nmethod lock for this, it | |
| 1686 // better be thread safe if we're disposing of it! | |
| 1687 ExceptionCache* ec = exception_cache(); | |
| 1688 set_exception_cache(NULL); | |
| 1689 while(ec != NULL) { | |
| 1690 ExceptionCache* next = ec->next(); | |
| 1691 delete ec; | |
| 1692 ec = next; | |
| 1693 } | |
| 1694 | |
|
989
148e5441d916
6863023: need non-perm oops in code cache for JSR 292
jrose
parents:
931
diff
changeset
|
1695 if (on_scavenge_root_list()) { |
|
148e5441d916
6863023: need non-perm oops in code cache for JSR 292
jrose
parents:
931
diff
changeset
|
1696 CodeCache::drop_scavenge_root_nmethod(this); |
|
148e5441d916
6863023: need non-perm oops in code cache for JSR 292
jrose
parents:
931
diff
changeset
|
1697 } |
|
148e5441d916
6863023: need non-perm oops in code cache for JSR 292
jrose
parents:
931
diff
changeset
|
1698 |
| 1692 | 1699 #ifdef SHARK |
|
1845
a222fcfba398
6990549: Zero and Shark fixes after 6978355 and 6953144
twisti
parents:
1784
diff
changeset
|
1700 ((SharkCompiler *) compiler())->free_compiled_method(insts_begin()); |
| 1692 | 1701 #endif // SHARK |
| 1702 | |
| 0 | 1703 ((CodeBlob*)(this))->flush(); |
| 1704 | |
| 1705 CodeCache::free(this); | |
| 1706 } | |
| 1707 | |
| 1708 | |
| 1709 // | |
| 1710 // Notify all classes this nmethod is dependent on that it is no | |
| 1711 // longer dependent. This should only be called in two situations. | |
| 1712 // First, when a nmethod transitions to a zombie all dependents need | |
| 1713 // to be clear. Since zombification happens at a safepoint there's no | |
| 1714 // synchronization issues. The second place is a little more tricky. | |
| 1715 // During phase 1 of mark sweep class unloading may happen and as a | |
| 1716 // result some nmethods may get unloaded. In this case the flushing | |
| 1717 // of dependencies must happen during phase 1 since after GC any | |
| 1718 // dependencies in the unloaded nmethod won't be updated, so | |
| 1719 // traversing the dependency information in unsafe. In that case this | |
| 1720 // function is called with a non-NULL argument and this function only | |
| 1721 // notifies instanceKlasses that are reachable | |
| 1722 | |
| 1723 void nmethod::flush_dependencies(BoolObjectClosure* is_alive) { | |
|
1538
bfe29ec02863
6950075: nmethod sweeper should operate concurrently
never
parents:
1490
diff
changeset
|
1724 assert_locked_or_safepoint(CodeCache_lock); |
| 0 | 1725 assert(Universe::heap()->is_gc_active() == (is_alive != NULL), |
| 1726 "is_alive is non-NULL if and only if we are called during GC"); | |
| 1727 if (!has_flushed_dependencies()) { | |
| 1728 set_has_flushed_dependencies(); | |
| 1729 for (Dependencies::DepStream deps(this); deps.next(); ) { | |
|
6725
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6266
diff
changeset
|
1730 Klass* klass = deps.context_type(); |
| 0 | 1731 if (klass == NULL) continue; // ignore things like evol_method |
| 1732 | |
| 1733 // During GC the is_alive closure is non-NULL, and is used to | |
| 1734 // 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
|
1735 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
|
1736 InstanceKlass::cast(klass)->remove_dependent_nmethod(this); |
| 0 | 1737 } |
| 1738 } | |
| 1739 } | |
| 1740 } | |
| 1741 | |
| 1742 | |
| 1743 // 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
|
1744 bool nmethod::can_unload(BoolObjectClosure* is_alive, oop* root, bool unloading_occurred) { |
| 0 | 1745 assert(root != NULL, "just checking"); |
| 1746 oop obj = *root; | |
| 1747 if (obj == NULL || is_alive->do_object_b(obj)) { | |
| 1748 return false; | |
| 1749 } | |
|
6725
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6266
diff
changeset
|
1750 |
|
989
148e5441d916
6863023: need non-perm oops in code cache for JSR 292
jrose
parents:
931
diff
changeset
|
1751 // 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
|
1752 // 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
|
1753 // No actual classes need to be unloaded in order for this to occur. |
|
148e5441d916
6863023: need non-perm oops in code cache for JSR 292
jrose
parents:
931
diff
changeset
|
1754 assert(unloading_occurred || ScavengeRootsInCode, "Inconsistency in unloading"); |
| 0 | 1755 make_unloaded(is_alive, obj); |
| 1756 return true; | |
| 1757 } | |
| 1758 | |
| 1759 // ------------------------------------------------------------------ | |
| 1760 // post_compiled_method_load_event | |
| 1761 // new method for install_code() path | |
| 1762 // Transfer information from compilation to jvmti | |
| 1763 void nmethod::post_compiled_method_load_event() { | |
| 1764 | |
|
6725
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6266
diff
changeset
|
1765 Method* moop = method(); |
| 4006 | 1766 #ifndef USDT2 |
| 0 | 1767 HS_DTRACE_PROBE8(hotspot, compiled__method__load, |
| 1768 moop->klass_name()->bytes(), | |
| 1769 moop->klass_name()->utf8_length(), | |
| 1770 moop->name()->bytes(), | |
| 1771 moop->name()->utf8_length(), | |
| 1772 moop->signature()->bytes(), | |
| 1773 moop->signature()->utf8_length(), | |
| 1748 | 1774 insts_begin(), insts_size()); |
| 4006 | 1775 #else /* USDT2 */ |
| 1776 HOTSPOT_COMPILED_METHOD_LOAD( | |
| 1777 (char *) moop->klass_name()->bytes(), | |
| 1778 moop->klass_name()->utf8_length(), | |
| 1779 (char *) moop->name()->bytes(), | |
| 1780 moop->name()->utf8_length(), | |
| 1781 (char *) moop->signature()->bytes(), | |
| 1782 moop->signature()->utf8_length(), | |
| 1783 insts_begin(), insts_size()); | |
| 1784 #endif /* USDT2 */ | |
| 0 | 1785 |
|
1616
38e8278318ca
6656830: assert((*p)->is_oop(),"expected an oop while scanning weak refs")
never
parents:
1602
diff
changeset
|
1786 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
|
1787 JvmtiExport::should_post_compiled_method_unload()) { |
|
38e8278318ca
6656830: assert((*p)->is_oop(),"expected an oop while scanning weak refs")
never
parents:
1602
diff
changeset
|
1788 get_and_cache_jmethod_id(); |
|
38e8278318ca
6656830: assert((*p)->is_oop(),"expected an oop while scanning weak refs")
never
parents:
1602
diff
changeset
|
1789 } |
|
38e8278318ca
6656830: assert((*p)->is_oop(),"expected an oop while scanning weak refs")
never
parents:
1602
diff
changeset
|
1790 |
| 0 | 1791 if (JvmtiExport::should_post_compiled_method_load()) { |
|
2195
bf8517f4e4d0
6766644: Redefinition of compiled method fails with assertion "Can not load classes with the Compiler thread"
kamg
parents:
2177
diff
changeset
|
1792 // 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
parents:
2177
diff
changeset
|
1793 MutexLockerEx ml(Service_lock, Mutex::_no_safepoint_check_flag); |
|
bf8517f4e4d0
6766644: Redefinition of compiled method fails with assertion "Can not load classes with the Compiler thread"
kamg
parents:
2177
diff
changeset
|
1794 JvmtiDeferredEventQueue::enqueue( |
|
bf8517f4e4d0
6766644: Redefinition of compiled method fails with assertion "Can not load classes with the Compiler thread"
kamg
parents:
2177
diff
changeset
|
1795 JvmtiDeferredEvent::compiled_method_load_event(this)); |
| 0 | 1796 } |
| 1797 } | |
| 1798 | |
|
1616
38e8278318ca
6656830: assert((*p)->is_oop(),"expected an oop while scanning weak refs")
never
parents:
1602
diff
changeset
|
1799 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
|
1800 if (_jmethod_id == NULL) { |
|
38e8278318ca
6656830: assert((*p)->is_oop(),"expected an oop while scanning weak refs")
never
parents:
1602
diff
changeset
|
1801 // Cache the jmethod_id since it can no longer be looked up once the |
|
38e8278318ca
6656830: assert((*p)->is_oop(),"expected an oop while scanning weak refs")
never
parents:
1602
diff
changeset
|
1802 // method itself has been marked for unloading. |
|
38e8278318ca
6656830: assert((*p)->is_oop(),"expected an oop while scanning weak refs")
never
parents:
1602
diff
changeset
|
1803 _jmethod_id = method()->jmethod_id(); |
|
38e8278318ca
6656830: assert((*p)->is_oop(),"expected an oop while scanning weak refs")
never
parents:
1602
diff
changeset
|
1804 } |
|
38e8278318ca
6656830: assert((*p)->is_oop(),"expected an oop while scanning weak refs")
never
parents:
1602
diff
changeset
|
1805 return _jmethod_id; |
|
38e8278318ca
6656830: assert((*p)->is_oop(),"expected an oop while scanning weak refs")
never
parents:
1602
diff
changeset
|
1806 } |
|
38e8278318ca
6656830: assert((*p)->is_oop(),"expected an oop while scanning weak refs")
never
parents:
1602
diff
changeset
|
1807 |
| 0 | 1808 void nmethod::post_compiled_method_unload() { |
|
1577
852d0157c696
6956931: assert(SafepointSynchronize::is_at_safepoint()) failed: must be executed at a safepoint
never
parents:
1563
diff
changeset
|
1809 if (unload_reported()) { |
|
852d0157c696
6956931: assert(SafepointSynchronize::is_at_safepoint()) failed: must be executed at a safepoint
never
parents:
1563
diff
changeset
|
1810 // During unloading we transition to unloaded and then to zombie |
|
852d0157c696
6956931: assert(SafepointSynchronize::is_at_safepoint()) failed: must be executed at a safepoint
never
parents:
1563
diff
changeset
|
1811 // and the unloading is reported during the first transition. |
|
852d0157c696
6956931: assert(SafepointSynchronize::is_at_safepoint()) failed: must be executed at a safepoint
never
parents:
1563
diff
changeset
|
1812 return; |
|
852d0157c696
6956931: assert(SafepointSynchronize::is_at_safepoint()) failed: must be executed at a safepoint
never
parents:
1563
diff
changeset
|
1813 } |
|
852d0157c696
6956931: assert(SafepointSynchronize::is_at_safepoint()) failed: must be executed at a safepoint
never
parents:
1563
diff
changeset
|
1814 |
| 0 | 1815 assert(_method != NULL && !is_unloaded(), "just checking"); |
| 1816 DTRACE_METHOD_UNLOAD_PROBE(method()); | |
| 1817 | |
| 1818 // If a JVMTI agent has enabled the CompiledMethodUnload event then | |
|
1616
38e8278318ca
6656830: assert((*p)->is_oop(),"expected an oop while scanning weak refs")
never
parents:
1602
diff
changeset
|
1819 // post the event. Sometime later this nmethod will be made a zombie |
|
6725
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6266
diff
changeset
|
1820 // by the sweeper but the Method* will not be valid at that point. |
|
1616
38e8278318ca
6656830: assert((*p)->is_oop(),"expected an oop while scanning weak refs")
never
parents:
1602
diff
changeset
|
1821 // If the _jmethod_id is null then no load event was ever requested |
|
38e8278318ca
6656830: assert((*p)->is_oop(),"expected an oop while scanning weak refs")
never
parents:
1602
diff
changeset
|
1822 // so don't bother posting the unload. The main reason for this is |
|
6725
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6266
diff
changeset
|
1823 // that the jmethodID is a weak reference to the Method* so if |
|
1616
38e8278318ca
6656830: assert((*p)->is_oop(),"expected an oop while scanning weak refs")
never
parents:
1602
diff
changeset
|
1824 // it's being unloaded there's no way to look it up since the weak |
|
38e8278318ca
6656830: assert((*p)->is_oop(),"expected an oop while scanning weak refs")
never
parents:
1602
diff
changeset
|
1825 // ref will have been cleared. |
|
38e8278318ca
6656830: assert((*p)->is_oop(),"expected an oop while scanning weak refs")
never
parents:
1602
diff
changeset
|
1826 if (_jmethod_id != NULL && JvmtiExport::should_post_compiled_method_unload()) { |
| 0 | 1827 assert(!unload_reported(), "already unloaded"); |
|
2195
bf8517f4e4d0
6766644: Redefinition of compiled method fails with assertion "Can not load classes with the Compiler thread"
kamg
parents:
2177
diff
changeset
|
1828 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
|
1829 JvmtiDeferredEvent::compiled_method_unload_event(this, |
|
2195
bf8517f4e4d0
6766644: Redefinition of compiled method fails with assertion "Can not load classes with the Compiler thread"
kamg
parents:
2177
diff
changeset
|
1830 _jmethod_id, insts_begin()); |
|
bf8517f4e4d0
6766644: Redefinition of compiled method fails with assertion "Can not load classes with the Compiler thread"
kamg
parents:
2177
diff
changeset
|
1831 if (SafepointSynchronize::is_at_safepoint()) { |
|
bf8517f4e4d0
6766644: Redefinition of compiled method fails with assertion "Can not load classes with the Compiler thread"
kamg
parents:
2177
diff
changeset
|
1832 // Don't want to take the queueing lock. Add it as pending and |
|
bf8517f4e4d0
6766644: Redefinition of compiled method fails with assertion "Can not load classes with the Compiler thread"
kamg
parents:
2177
diff
changeset
|
1833 // it will get enqueued later. |
|
bf8517f4e4d0
6766644: Redefinition of compiled method fails with assertion "Can not load classes with the Compiler thread"
kamg
parents:
2177
diff
changeset
|
1834 JvmtiDeferredEventQueue::add_pending_event(event); |
|
bf8517f4e4d0
6766644: Redefinition of compiled method fails with assertion "Can not load classes with the Compiler thread"
kamg
parents:
2177
diff
changeset
|
1835 } else { |
|
bf8517f4e4d0
6766644: Redefinition of compiled method fails with assertion "Can not load classes with the Compiler thread"
kamg
parents:
2177
diff
changeset
|
1836 MutexLockerEx ml(Service_lock, Mutex::_no_safepoint_check_flag); |
|
bf8517f4e4d0
6766644: Redefinition of compiled method fails with assertion "Can not load classes with the Compiler thread"
kamg
parents:
2177
diff
changeset
|
1837 JvmtiDeferredEventQueue::enqueue(event); |
|
bf8517f4e4d0
6766644: Redefinition of compiled method fails with assertion "Can not load classes with the Compiler thread"
kamg
parents:
2177
diff
changeset
|
1838 } |
| 0 | 1839 } |
| 1840 | |
| 1841 // The JVMTI CompiledMethodUnload event can be enabled or disabled at | |
| 1842 // any time. As the nmethod is being unloaded now we mark it has | |
| 1843 // having the unload event reported - this will ensure that we don't | |
| 1844 // attempt to report the event in the unlikely scenario where the | |
| 1845 // event is enabled at the time the nmethod is made a zombie. | |
| 1846 set_unload_reported(); | |
| 1847 } | |
| 1848 | |
|
20619
b12a2a9b05ca
8056240: Investigate increased GC remark time after class unloading changes in CRM Fuse
stefank
parents:
20278
diff
changeset
|
1849 void static clean_ic_if_metadata_is_dead(CompiledIC *ic, BoolObjectClosure *is_alive, bool mark_on_stack) { |
|
20278
2c6ef90f030a
8049421: G1 Class Unloading after completing a concurrent mark cycle
stefank
parents:
20277
diff
changeset
|
1850 if (ic->is_icholder_call()) { |
|
2c6ef90f030a
8049421: G1 Class Unloading after completing a concurrent mark cycle
stefank
parents:
20277
diff
changeset
|
1851 // The only exception is compiledICHolder oops which may |
|
2c6ef90f030a
8049421: G1 Class Unloading after completing a concurrent mark cycle
stefank
parents:
20277
diff
changeset
|
1852 // yet be marked below. (We check this further below). |
|
2c6ef90f030a
8049421: G1 Class Unloading after completing a concurrent mark cycle
stefank
parents:
20277
diff
changeset
|
1853 CompiledICHolder* cichk_oop = ic->cached_icholder(); |
|
20619
b12a2a9b05ca
8056240: Investigate increased GC remark time after class unloading changes in CRM Fuse
stefank
parents:
20278
diff
changeset
|
1854 |
|
b12a2a9b05ca
8056240: Investigate increased GC remark time after class unloading changes in CRM Fuse
stefank
parents:
20278
diff
changeset
|
1855 if (mark_on_stack) { |
|
b12a2a9b05ca
8056240: Investigate increased GC remark time after class unloading changes in CRM Fuse
stefank
parents:
20278
diff
changeset
|
1856 Metadata::mark_on_stack(cichk_oop->holder_method()); |
|
b12a2a9b05ca
8056240: Investigate increased GC remark time after class unloading changes in CRM Fuse
stefank
parents:
20278
diff
changeset
|
1857 Metadata::mark_on_stack(cichk_oop->holder_klass()); |
|
b12a2a9b05ca
8056240: Investigate increased GC remark time after class unloading changes in CRM Fuse
stefank
parents:
20278
diff
changeset
|
1858 } |
|
b12a2a9b05ca
8056240: Investigate increased GC remark time after class unloading changes in CRM Fuse
stefank
parents:
20278
diff
changeset
|
1859 |
|
20278
2c6ef90f030a
8049421: G1 Class Unloading after completing a concurrent mark cycle
stefank
parents:
20277
diff
changeset
|
1860 if (cichk_oop->holder_method()->method_holder()->is_loader_alive(is_alive) && |
|
2c6ef90f030a
8049421: G1 Class Unloading after completing a concurrent mark cycle
stefank
parents:
20277
diff
changeset
|
1861 cichk_oop->holder_klass()->is_loader_alive(is_alive)) { |
|
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1862 return; |
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1863 } |
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1864 } else { |
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1865 Metadata* ic_oop = ic->cached_metadata(); |
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1866 if (ic_oop != NULL) { |
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1867 if (mark_on_stack) { |
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1868 Metadata::mark_on_stack(ic_oop); |
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1869 } |
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1870 |
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1871 if (ic_oop->is_klass()) { |
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1872 if (((Klass*)ic_oop)->is_loader_alive(is_alive)) { |
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1873 return; |
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1874 } |
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1875 } else if (ic_oop->is_method()) { |
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1876 if (((Method*)ic_oop)->method_holder()->is_loader_alive(is_alive)) { |
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1877 return; |
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1878 } |
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1879 } else { |
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1880 ShouldNotReachHere(); |
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1881 } |
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1882 } |
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1883 } |
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1884 |
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1885 ic->set_to_clean(); |
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1886 } |
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1887 |
| 0 | 1888 // This is called at the end of the strong tracing/marking phase of a |
| 1889 // GC to unload an nmethod if it contains otherwise unreachable | |
| 1890 // oops. | |
| 1891 | |
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1892 void nmethod::do_unloading(BoolObjectClosure* is_alive, bool unloading_occurred) { |
| 0 | 1893 // Make sure the oop's ready to receive visitors |
| 1894 assert(!is_zombie() && !is_unloaded(), | |
| 1895 "should not call follow on zombie or unloaded nmethod"); | |
| 1896 | |
| 1897 // If the method is not entrant then a JMP is plastered over the | |
| 1898 // first few bytes. If an oop in the old code was there, that oop | |
| 1899 // should not get GC'd. Skip the first few bytes of oops on | |
| 1900 // not-entrant methods. | |
| 1901 address low_boundary = verified_entry_point(); | |
| 1902 if (is_not_entrant()) { | |
| 1903 low_boundary += NativeJump::instruction_size; | |
| 1904 // %%% Note: On SPARC we patch only a 4-byte trap, not a full NativeJump. | |
| 1905 // (See comment above.) | |
| 1906 } | |
| 1907 | |
| 1908 // The RedefineClasses() API can cause the class unloading invariant | |
| 1909 // to no longer be true. See jvmtiExport.hpp for details. | |
| 1910 // Also, leave a debugging breadcrumb in local flag. | |
| 1911 bool a_class_was_redefined = JvmtiExport::has_redefined_a_class(); | |
| 1912 if (a_class_was_redefined) { | |
| 1913 // This set of the unloading_occurred flag is done before the | |
| 1914 // call to post_compiled_method_unload() so that the unloading | |
| 1915 // of this nmethod is reported. | |
| 1916 unloading_occurred = true; | |
| 1917 } | |
| 1918 | |
| 9707 | 1919 #ifdef GRAAL |
| 1920 // Follow Graal method | |
| 1921 if (_graal_installed_code != NULL) { | |
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1922 if (_graal_installed_code->is_a(HotSpotNmethod::klass()) && HotSpotNmethod::isDefault(_graal_installed_code)) { |
| 9707 | 1923 if (!is_alive->do_object_b(_graal_installed_code)) { |
| 1924 _graal_installed_code = NULL; | |
| 1925 } | |
| 1926 } else { | |
| 1927 if (can_unload(is_alive, (oop*)&_graal_installed_code, unloading_occurred)) { | |
| 1928 return; | |
| 1929 } | |
| 1930 } | |
| 1931 } | |
|
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1932 |
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1933 if (_speculation_log != NULL) { |
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1934 if (!is_alive->do_object_b(_speculation_log)) { |
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1935 _speculation_log = NULL; |
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1936 } |
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1937 } |
| 9707 | 1938 #endif |
| 1939 | |
| 0 | 1940 // Exception cache |
| 20269 | 1941 clean_exception_cache(is_alive); |
| 0 | 1942 |
| 1943 // If class unloading occurred we first iterate over all inline caches and | |
| 1944 // clear ICs where the cached oop is referring to an unloaded klass or method. | |
| 1945 // The remaining live cached oops will be traversed in the relocInfo::oop_type | |
| 1946 // iteration below. | |
| 1947 if (unloading_occurred) { | |
| 1948 RelocIterator iter(this, low_boundary); | |
| 1949 while(iter.next()) { | |
| 1950 if (iter.type() == relocInfo::virtual_call_type) { | |
|
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1951 CompiledIC *ic = CompiledIC_at(&iter); |
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1952 clean_ic_if_metadata_is_dead(ic, is_alive, false); |
| 0 | 1953 } |
| 1954 } | |
| 1955 } | |
| 1956 | |
| 1957 // Compiled code | |
|
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1958 { |
| 0 | 1959 RelocIterator iter(this, low_boundary); |
| 1960 while (iter.next()) { | |
| 1961 if (iter.type() == relocInfo::oop_type) { | |
| 1962 oop_Relocation* r = iter.oop_reloc(); | |
| 1963 // In this loop, we must only traverse those oops directly embedded in | |
| 1964 // the code. Other oops (oop_index>0) are seen as part of scopes_oops. | |
| 1965 assert(1 == (r->oop_is_immediate()) + | |
| 1966 (r->oop_addr() >= oops_begin() && r->oop_addr() < oops_end()), | |
| 1967 "oop must be found in exactly one place"); | |
| 1968 if (r->oop_is_immediate() && r->oop_value() != NULL) { | |
|
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1969 if (can_unload(is_alive, r->oop_addr(), unloading_occurred)) { |
| 0 | 1970 return; |
| 1971 } | |
| 1972 } | |
| 1973 } | |
| 1974 } | |
|
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1975 } |
| 0 | 1976 |
| 1977 | |
| 1978 // Scopes | |
| 1979 for (oop* p = oops_begin(); p < oops_end(); p++) { | |
| 1980 if (*p == Universe::non_oop_word()) continue; // skip non-oops | |
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1981 if (can_unload(is_alive, p, unloading_occurred)) { |
| 0 | 1982 return; |
| 1983 } | |
| 1984 } | |
| 1985 | |
|
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1986 // Ensure that all metadata is still alive |
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1987 verify_metadata_loaders(low_boundary, is_alive); |
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1988 } |
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1989 |
|
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1990 template <class CompiledICorStaticCall> |
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1991 static bool clean_if_nmethod_is_unloaded(CompiledICorStaticCall *ic, address addr, BoolObjectClosure *is_alive, nmethod* from) { |
|
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1992 // Ok, to lookup references to zombies here |
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1993 CodeBlob *cb = CodeCache::find_blob_unsafe(addr); |
|
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1994 if (cb != NULL && cb->is_nmethod()) { |
|
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1995 nmethod* nm = (nmethod*)cb; |
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1996 |
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1997 if (nm->unloading_clock() != nmethod::global_unloading_clock()) { |
|
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1998 // The nmethod has not been processed yet. |
|
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1999 return true; |
|
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2000 } |
|
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2001 |
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2002 // Clean inline caches pointing to both zombie and not_entrant methods |
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2003 if (!nm->is_in_use() || (nm->method()->code() != nm)) { |
|
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2004 ic->set_to_clean(); |
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2005 assert(ic->is_clean(), err_msg("nmethod " PTR_FORMAT "not clean %s", from, from->method()->name_and_sig_as_C_string())); |
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2006 } |
|
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|
2007 } |
|
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|
2008 |
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2009 return false; |
|
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|
2010 } |
|
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|
2011 |
|
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2012 static bool clean_if_nmethod_is_unloaded(CompiledIC *ic, BoolObjectClosure *is_alive, nmethod* from) { |
|
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2013 return clean_if_nmethod_is_unloaded(ic, ic->ic_destination(), is_alive, from); |
|
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|
2014 } |
|
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|
2015 |
|
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2016 static bool clean_if_nmethod_is_unloaded(CompiledStaticCall *csc, BoolObjectClosure *is_alive, nmethod* from) { |
|
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2017 return clean_if_nmethod_is_unloaded(csc, csc->destination(), is_alive, from); |
|
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2018 } |
|
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|
2019 |
|
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2020 bool nmethod::unload_if_dead_at(RelocIterator* iter_at_oop, BoolObjectClosure *is_alive, bool unloading_occurred) { |
|
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2021 assert(iter_at_oop->type() == relocInfo::oop_type, "Wrong relocation type"); |
|
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2022 |
|
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2023 oop_Relocation* r = iter_at_oop->oop_reloc(); |
|
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2024 // Traverse those oops directly embedded in the code. |
|
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2025 // Other oops (oop_index>0) are seen as part of scopes_oops. |
|
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2026 assert(1 == (r->oop_is_immediate()) + |
|
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2027 (r->oop_addr() >= oops_begin() && r->oop_addr() < oops_end()), |
|
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2028 "oop must be found in exactly one place"); |
|
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2029 if (r->oop_is_immediate() && r->oop_value() != NULL) { |
|
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2030 // Unload this nmethod if the oop is dead. |
|
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2031 if (can_unload(is_alive, r->oop_addr(), unloading_occurred)) { |
|
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2032 return true;; |
|
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2033 } |
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2034 } |
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2035 |
|
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2036 return false; |
|
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2037 } |
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2038 |
|
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2039 void nmethod::mark_metadata_on_stack_at(RelocIterator* iter_at_metadata) { |
|
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2040 assert(iter_at_metadata->type() == relocInfo::metadata_type, "Wrong relocation type"); |
|
b12a2a9b05ca
8056240: Investigate increased GC remark time after class unloading changes in CRM Fuse
stefank
parents:
20278
diff
changeset
|
2041 |
|
b12a2a9b05ca
8056240: Investigate increased GC remark time after class unloading changes in CRM Fuse
stefank
parents:
20278
diff
changeset
|
2042 metadata_Relocation* r = iter_at_metadata->metadata_reloc(); |
|
b12a2a9b05ca
8056240: Investigate increased GC remark time after class unloading changes in CRM Fuse
stefank
parents:
20278
diff
changeset
|
2043 // In this metadata, we must only follow those metadatas directly embedded in |
|
b12a2a9b05ca
8056240: Investigate increased GC remark time after class unloading changes in CRM Fuse
stefank
parents:
20278
diff
changeset
|
2044 // the code. Other metadatas (oop_index>0) are seen as part of |
|
b12a2a9b05ca
8056240: Investigate increased GC remark time after class unloading changes in CRM Fuse
stefank
parents:
20278
diff
changeset
|
2045 // the metadata section below. |
|
b12a2a9b05ca
8056240: Investigate increased GC remark time after class unloading changes in CRM Fuse
stefank
parents:
20278
diff
changeset
|
2046 assert(1 == (r->metadata_is_immediate()) + |
|
b12a2a9b05ca
8056240: Investigate increased GC remark time after class unloading changes in CRM Fuse
stefank
parents:
20278
diff
changeset
|
2047 (r->metadata_addr() >= metadata_begin() && r->metadata_addr() < metadata_end()), |
|
b12a2a9b05ca
8056240: Investigate increased GC remark time after class unloading changes in CRM Fuse
stefank
parents:
20278
diff
changeset
|
2048 "metadata must be found in exactly one place"); |
|
b12a2a9b05ca
8056240: Investigate increased GC remark time after class unloading changes in CRM Fuse
stefank
parents:
20278
diff
changeset
|
2049 if (r->metadata_is_immediate() && r->metadata_value() != NULL) { |
|
b12a2a9b05ca
8056240: Investigate increased GC remark time after class unloading changes in CRM Fuse
stefank
parents:
20278
diff
changeset
|
2050 Metadata* md = r->metadata_value(); |
|
b12a2a9b05ca
8056240: Investigate increased GC remark time after class unloading changes in CRM Fuse
stefank
parents:
20278
diff
changeset
|
2051 if (md != _method) Metadata::mark_on_stack(md); |
|
b12a2a9b05ca
8056240: Investigate increased GC remark time after class unloading changes in CRM Fuse
stefank
parents:
20278
diff
changeset
|
2052 } |
|
b12a2a9b05ca
8056240: Investigate increased GC remark time after class unloading changes in CRM Fuse
stefank
parents:
20278
diff
changeset
|
2053 } |
|
b12a2a9b05ca
8056240: Investigate increased GC remark time after class unloading changes in CRM Fuse
stefank
parents:
20278
diff
changeset
|
2054 |
|
b12a2a9b05ca
8056240: Investigate increased GC remark time after class unloading changes in CRM Fuse
stefank
parents:
20278
diff
changeset
|
2055 void nmethod::mark_metadata_on_stack_non_relocs() { |
|
b12a2a9b05ca
8056240: Investigate increased GC remark time after class unloading changes in CRM Fuse
stefank
parents:
20278
diff
changeset
|
2056 // Visit the metadata section |
|
b12a2a9b05ca
8056240: Investigate increased GC remark time after class unloading changes in CRM Fuse
stefank
parents:
20278
diff
changeset
|
2057 for (Metadata** p = metadata_begin(); p < metadata_end(); p++) { |
|
b12a2a9b05ca
8056240: Investigate increased GC remark time after class unloading changes in CRM Fuse
stefank
parents:
20278
diff
changeset
|
2058 if (*p == Universe::non_oop_word() || *p == NULL) continue; // skip non-oops |
|
b12a2a9b05ca
8056240: Investigate increased GC remark time after class unloading changes in CRM Fuse
stefank
parents:
20278
diff
changeset
|
2059 Metadata* md = *p; |
|
b12a2a9b05ca
8056240: Investigate increased GC remark time after class unloading changes in CRM Fuse
stefank
parents:
20278
diff
changeset
|
2060 Metadata::mark_on_stack(md); |
|
b12a2a9b05ca
8056240: Investigate increased GC remark time after class unloading changes in CRM Fuse
stefank
parents:
20278
diff
changeset
|
2061 } |
|
b12a2a9b05ca
8056240: Investigate increased GC remark time after class unloading changes in CRM Fuse
stefank
parents:
20278
diff
changeset
|
2062 |
|
b12a2a9b05ca
8056240: Investigate increased GC remark time after class unloading changes in CRM Fuse
stefank
parents:
20278
diff
changeset
|
2063 // Visit metadata not embedded in the other places. |
|
b12a2a9b05ca
8056240: Investigate increased GC remark time after class unloading changes in CRM Fuse
stefank
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20278
diff
changeset
|
2064 if (_method != NULL) Metadata::mark_on_stack(_method); |
|
b12a2a9b05ca
8056240: Investigate increased GC remark time after class unloading changes in CRM Fuse
stefank
parents:
20278
diff
changeset
|
2065 } |
|
b12a2a9b05ca
8056240: Investigate increased GC remark time after class unloading changes in CRM Fuse
stefank
parents:
20278
diff
changeset
|
2066 |
|
20278
2c6ef90f030a
8049421: G1 Class Unloading after completing a concurrent mark cycle
stefank
parents:
20277
diff
changeset
|
2067 bool nmethod::do_unloading_parallel(BoolObjectClosure* is_alive, bool unloading_occurred) { |
|
2c6ef90f030a
8049421: G1 Class Unloading after completing a concurrent mark cycle
stefank
parents:
20277
diff
changeset
|
2068 ResourceMark rm; |
|
2c6ef90f030a
8049421: G1 Class Unloading after completing a concurrent mark cycle
stefank
parents:
20277
diff
changeset
|
2069 |
|
2c6ef90f030a
8049421: G1 Class Unloading after completing a concurrent mark cycle
stefank
parents:
20277
diff
changeset
|
2070 // Make sure the oop's ready to receive visitors |
|
2c6ef90f030a
8049421: G1 Class Unloading after completing a concurrent mark cycle
stefank
parents:
20277
diff
changeset
|
2071 assert(!is_zombie() && !is_unloaded(), |
|
2c6ef90f030a
8049421: G1 Class Unloading after completing a concurrent mark cycle
stefank
parents:
20277
diff
changeset
|
2072 "should not call follow on zombie or unloaded nmethod"); |
|
2c6ef90f030a
8049421: G1 Class Unloading after completing a concurrent mark cycle
stefank
parents:
20277
diff
changeset
|
2073 |
|
2c6ef90f030a
8049421: G1 Class Unloading after completing a concurrent mark cycle
stefank
parents:
20277
diff
changeset
|
2074 // If the method is not entrant then a JMP is plastered over the |
|
2c6ef90f030a
8049421: G1 Class Unloading after completing a concurrent mark cycle
stefank
parents:
20277
diff
changeset
|
2075 // first few bytes. If an oop in the old code was there, that oop |
|
2c6ef90f030a
8049421: G1 Class Unloading after completing a concurrent mark cycle
stefank
parents:
20277
diff
changeset
|
2076 // should not get GC'd. Skip the first few bytes of oops on |
|
2c6ef90f030a
8049421: G1 Class Unloading after completing a concurrent mark cycle
stefank
parents:
20277
diff
changeset
|
2077 // not-entrant methods. |
|
2c6ef90f030a
8049421: G1 Class Unloading after completing a concurrent mark cycle
stefank
parents:
20277
diff
changeset
|
2078 address low_boundary = verified_entry_point(); |
|
2c6ef90f030a
8049421: G1 Class Unloading after completing a concurrent mark cycle
stefank
parents:
20277
diff
changeset
|
2079 if (is_not_entrant()) { |
|
2c6ef90f030a
8049421: G1 Class Unloading after completing a concurrent mark cycle
stefank
parents:
20277
diff
changeset
|
2080 low_boundary += NativeJump::instruction_size; |
|
2c6ef90f030a
8049421: G1 Class Unloading after completing a concurrent mark cycle
stefank
parents:
20277
diff
changeset
|
2081 // %%% Note: On SPARC we patch only a 4-byte trap, not a full NativeJump. |
|
2c6ef90f030a
8049421: G1 Class Unloading after completing a concurrent mark cycle
stefank
parents:
20277
diff
changeset
|
2082 // (See comment above.) |
|
2c6ef90f030a
8049421: G1 Class Unloading after completing a concurrent mark cycle
stefank
parents:
20277
diff
changeset
|
2083 } |
|
2c6ef90f030a
8049421: G1 Class Unloading after completing a concurrent mark cycle
stefank
parents:
20277
diff
changeset
|
2084 |
|
2c6ef90f030a
8049421: G1 Class Unloading after completing a concurrent mark cycle
stefank
parents:
20277
diff
changeset
|
2085 // The RedefineClasses() API can cause the class unloading invariant |
|
2c6ef90f030a
8049421: G1 Class Unloading after completing a concurrent mark cycle
stefank
parents:
20277
diff
changeset
|
2086 // to no longer be true. See jvmtiExport.hpp for details. |
|
2c6ef90f030a
8049421: G1 Class Unloading after completing a concurrent mark cycle
stefank
parents:
20277
diff
changeset
|
2087 // Also, leave a debugging breadcrumb in local flag. |
|
2c6ef90f030a
8049421: G1 Class Unloading after completing a concurrent mark cycle
stefank
parents:
20277
diff
changeset
|
2088 bool a_class_was_redefined = JvmtiExport::has_redefined_a_class(); |
|
2c6ef90f030a
8049421: G1 Class Unloading after completing a concurrent mark cycle
stefank
parents:
20277
diff
changeset
|
2089 if (a_class_was_redefined) { |
|
2c6ef90f030a
8049421: G1 Class Unloading after completing a concurrent mark cycle
stefank
parents:
20277
diff
changeset
|
2090 // This set of the unloading_occurred flag is done before the |
|
2c6ef90f030a
8049421: G1 Class Unloading after completing a concurrent mark cycle
stefank
parents:
20277
diff
changeset
|
2091 // call to post_compiled_method_unload() so that the unloading |
|
2c6ef90f030a
8049421: G1 Class Unloading after completing a concurrent mark cycle
stefank
parents:
20277
diff
changeset
|
2092 // of this nmethod is reported. |
|
2c6ef90f030a
8049421: G1 Class Unloading after completing a concurrent mark cycle
stefank
parents:
20277
diff
changeset
|
2093 unloading_occurred = true; |
|
2c6ef90f030a
8049421: G1 Class Unloading after completing a concurrent mark cycle
stefank
parents:
20277
diff
changeset
|
2094 } |
|
2c6ef90f030a
8049421: G1 Class Unloading after completing a concurrent mark cycle
stefank
parents:
20277
diff
changeset
|
2095 |
|
20813
eb21f2944d7d
Process Graal oops in nmethod::do_unloading_parallel
Gilles Duboscq <gilles.m.duboscq@oracle.com>
parents:
20804
diff
changeset
|
2096 #ifdef GRAAL |
|
eb21f2944d7d
Process Graal oops in nmethod::do_unloading_parallel
Gilles Duboscq <gilles.m.duboscq@oracle.com>
parents:
20804
diff
changeset
|
2097 // Follow Graal method |
|
eb21f2944d7d
Process Graal oops in nmethod::do_unloading_parallel
Gilles Duboscq <gilles.m.duboscq@oracle.com>
parents:
20804
diff
changeset
|
2098 if (_graal_installed_code != NULL) { |
|
eb21f2944d7d
Process Graal oops in nmethod::do_unloading_parallel
Gilles Duboscq <gilles.m.duboscq@oracle.com>
parents:
20804
diff
changeset
|
2099 if (_graal_installed_code->is_a(HotSpotNmethod::klass()) && HotSpotNmethod::isDefault(_graal_installed_code)) { |
|
eb21f2944d7d
Process Graal oops in nmethod::do_unloading_parallel
Gilles Duboscq <gilles.m.duboscq@oracle.com>
parents:
20804
diff
changeset
|
2100 if (!is_alive->do_object_b(_graal_installed_code)) { |
|
eb21f2944d7d
Process Graal oops in nmethod::do_unloading_parallel
Gilles Duboscq <gilles.m.duboscq@oracle.com>
parents:
20804
diff
changeset
|
2101 _graal_installed_code = NULL; |
|
eb21f2944d7d
Process Graal oops in nmethod::do_unloading_parallel
Gilles Duboscq <gilles.m.duboscq@oracle.com>
parents:
20804
diff
changeset
|
2102 } |
|
eb21f2944d7d
Process Graal oops in nmethod::do_unloading_parallel
Gilles Duboscq <gilles.m.duboscq@oracle.com>
parents:
20804
diff
changeset
|
2103 } else { |
|
eb21f2944d7d
Process Graal oops in nmethod::do_unloading_parallel
Gilles Duboscq <gilles.m.duboscq@oracle.com>
parents:
20804
diff
changeset
|
2104 if (can_unload(is_alive, (oop*)&_graal_installed_code, unloading_occurred)) { |
|
eb21f2944d7d
Process Graal oops in nmethod::do_unloading_parallel
Gilles Duboscq <gilles.m.duboscq@oracle.com>
parents:
20804
diff
changeset
|
2105 return false; |
|
eb21f2944d7d
Process Graal oops in nmethod::do_unloading_parallel
Gilles Duboscq <gilles.m.duboscq@oracle.com>
parents:
20804
diff
changeset
|
2106 } |
|
eb21f2944d7d
Process Graal oops in nmethod::do_unloading_parallel
Gilles Duboscq <gilles.m.duboscq@oracle.com>
parents:
20804
diff
changeset
|
2107 } |
|
eb21f2944d7d
Process Graal oops in nmethod::do_unloading_parallel
Gilles Duboscq <gilles.m.duboscq@oracle.com>
parents:
20804
diff
changeset
|
2108 } |
|
eb21f2944d7d
Process Graal oops in nmethod::do_unloading_parallel
Gilles Duboscq <gilles.m.duboscq@oracle.com>
parents:
20804
diff
changeset
|
2109 |
|
eb21f2944d7d
Process Graal oops in nmethod::do_unloading_parallel
Gilles Duboscq <gilles.m.duboscq@oracle.com>
parents:
20804
diff
changeset
|
2110 if (_speculation_log != NULL) { |
|
eb21f2944d7d
Process Graal oops in nmethod::do_unloading_parallel
Gilles Duboscq <gilles.m.duboscq@oracle.com>
parents:
20804
diff
changeset
|
2111 if (!is_alive->do_object_b(_speculation_log)) { |
|
eb21f2944d7d
Process Graal oops in nmethod::do_unloading_parallel
Gilles Duboscq <gilles.m.duboscq@oracle.com>
parents:
20804
diff
changeset
|
2112 _speculation_log = NULL; |
|
eb21f2944d7d
Process Graal oops in nmethod::do_unloading_parallel
Gilles Duboscq <gilles.m.duboscq@oracle.com>
parents:
20804
diff
changeset
|
2113 } |
|
eb21f2944d7d
Process Graal oops in nmethod::do_unloading_parallel
Gilles Duboscq <gilles.m.duboscq@oracle.com>
parents:
20804
diff
changeset
|
2114 } |
|
eb21f2944d7d
Process Graal oops in nmethod::do_unloading_parallel
Gilles Duboscq <gilles.m.duboscq@oracle.com>
parents:
20804
diff
changeset
|
2115 #endif |
|
eb21f2944d7d
Process Graal oops in nmethod::do_unloading_parallel
Gilles Duboscq <gilles.m.duboscq@oracle.com>
parents:
20804
diff
changeset
|
2116 |
|
20619
b12a2a9b05ca
8056240: Investigate increased GC remark time after class unloading changes in CRM Fuse
stefank
parents:
20278
diff
changeset
|
2117 // When class redefinition is used all metadata in the CodeCache has to be recorded, |
|
b12a2a9b05ca
8056240: Investigate increased GC remark time after class unloading changes in CRM Fuse
stefank
parents:
20278
diff
changeset
|
2118 // so that unused "previous versions" can be purged. Since walking the CodeCache can |
|
b12a2a9b05ca
8056240: Investigate increased GC remark time after class unloading changes in CRM Fuse
stefank
parents:
20278
diff
changeset
|
2119 // be expensive, the "mark on stack" is piggy-backed on this parallel unloading code. |
|
b12a2a9b05ca
8056240: Investigate increased GC remark time after class unloading changes in CRM Fuse
stefank
parents:
20278
diff
changeset
|
2120 bool mark_metadata_on_stack = a_class_was_redefined; |
|
b12a2a9b05ca
8056240: Investigate increased GC remark time after class unloading changes in CRM Fuse
stefank
parents:
20278
diff
changeset
|
2121 |
|
20278
2c6ef90f030a
8049421: G1 Class Unloading after completing a concurrent mark cycle
stefank
parents:
20277
diff
changeset
|
2122 // Exception cache |
|
2c6ef90f030a
8049421: G1 Class Unloading after completing a concurrent mark cycle
stefank
parents:
20277
diff
changeset
|
2123 clean_exception_cache(is_alive); |
|
2c6ef90f030a
8049421: G1 Class Unloading after completing a concurrent mark cycle
stefank
parents:
20277
diff
changeset
|
2124 |
|
2c6ef90f030a
8049421: G1 Class Unloading after completing a concurrent mark cycle
stefank
parents:
20277
diff
changeset
|
2125 bool is_unloaded = false; |
|
2c6ef90f030a
8049421: G1 Class Unloading after completing a concurrent mark cycle
stefank
parents:
20277
diff
changeset
|
2126 bool postponed = false; |
|
2c6ef90f030a
8049421: G1 Class Unloading after completing a concurrent mark cycle
stefank
parents:
20277
diff
changeset
|
2127 |
|
2c6ef90f030a
8049421: G1 Class Unloading after completing a concurrent mark cycle
stefank
parents:
20277
diff
changeset
|
2128 RelocIterator iter(this, low_boundary); |
|
2c6ef90f030a
8049421: G1 Class Unloading after completing a concurrent mark cycle
stefank
parents:
20277
diff
changeset
|
2129 while(iter.next()) { |
|
2c6ef90f030a
8049421: G1 Class Unloading after completing a concurrent mark cycle
stefank
parents:
20277
diff
changeset
|
2130 |
|
2c6ef90f030a
8049421: G1 Class Unloading after completing a concurrent mark cycle
stefank
parents:
20277
diff
changeset
|
2131 switch (iter.type()) { |
|
2c6ef90f030a
8049421: G1 Class Unloading after completing a concurrent mark cycle
stefank
parents:
20277
diff
changeset
|
2132 |
|
2c6ef90f030a
8049421: G1 Class Unloading after completing a concurrent mark cycle
stefank
parents:
20277
diff
changeset
|
2133 case relocInfo::virtual_call_type: |
|
2c6ef90f030a
8049421: G1 Class Unloading after completing a concurrent mark cycle
stefank
parents:
20277
diff
changeset
|
2134 if (unloading_occurred) { |
|
2c6ef90f030a
8049421: G1 Class Unloading after completing a concurrent mark cycle
stefank
parents:
20277
diff
changeset
|
2135 // If class unloading occurred we first iterate over all inline caches and |
|
2c6ef90f030a
8049421: G1 Class Unloading after completing a concurrent mark cycle
stefank
parents:
20277
diff
changeset
|
2136 // clear ICs where the cached oop is referring to an unloaded klass or method. |
|
20619
b12a2a9b05ca
8056240: Investigate increased GC remark time after class unloading changes in CRM Fuse
stefank
parents:
20278
diff
changeset
|
2137 clean_ic_if_metadata_is_dead(CompiledIC_at(&iter), is_alive, mark_metadata_on_stack); |
|
20278
2c6ef90f030a
8049421: G1 Class Unloading after completing a concurrent mark cycle
stefank
parents:
20277
diff
changeset
|
2138 } |
|
2c6ef90f030a
8049421: G1 Class Unloading after completing a concurrent mark cycle
stefank
parents:
20277
diff
changeset
|
2139 |
|
2c6ef90f030a
8049421: G1 Class Unloading after completing a concurrent mark cycle
stefank
parents:
20277
diff
changeset
|
2140 postponed |= clean_if_nmethod_is_unloaded(CompiledIC_at(&iter), is_alive, this); |
|
2c6ef90f030a
8049421: G1 Class Unloading after completing a concurrent mark cycle
stefank
parents:
20277
diff
changeset
|
2141 break; |
|
2c6ef90f030a
8049421: G1 Class Unloading after completing a concurrent mark cycle
stefank
parents:
20277
diff
changeset
|
2142 |
|
2c6ef90f030a
8049421: G1 Class Unloading after completing a concurrent mark cycle
stefank
parents:
20277
diff
changeset
|
2143 case relocInfo::opt_virtual_call_type: |
|
2c6ef90f030a
8049421: G1 Class Unloading after completing a concurrent mark cycle
stefank
parents:
20277
diff
changeset
|
2144 postponed |= clean_if_nmethod_is_unloaded(CompiledIC_at(&iter), is_alive, this); |
|
2c6ef90f030a
8049421: G1 Class Unloading after completing a concurrent mark cycle
stefank
parents:
20277
diff
changeset
|
2145 break; |
|
2c6ef90f030a
8049421: G1 Class Unloading after completing a concurrent mark cycle
stefank
parents:
20277
diff
changeset
|
2146 |
|
2c6ef90f030a
8049421: G1 Class Unloading after completing a concurrent mark cycle
stefank
parents:
20277
diff
changeset
|
2147 case relocInfo::static_call_type: |
|
2c6ef90f030a
8049421: G1 Class Unloading after completing a concurrent mark cycle
stefank
parents:
20277
diff
changeset
|
2148 postponed |= clean_if_nmethod_is_unloaded(compiledStaticCall_at(iter.reloc()), is_alive, this); |
|
2c6ef90f030a
8049421: G1 Class Unloading after completing a concurrent mark cycle
stefank
parents:
20277
diff
changeset
|
2149 break; |
|
2c6ef90f030a
8049421: G1 Class Unloading after completing a concurrent mark cycle
stefank
parents:
20277
diff
changeset
|
2150 |
|
2c6ef90f030a
8049421: G1 Class Unloading after completing a concurrent mark cycle
stefank
parents:
20277
diff
changeset
|
2151 case relocInfo::oop_type: |
|
2c6ef90f030a
8049421: G1 Class Unloading after completing a concurrent mark cycle
stefank
parents:
20277
diff
changeset
|
2152 if (!is_unloaded) { |
|
20619
b12a2a9b05ca
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2153 is_unloaded = unload_if_dead_at(&iter, is_alive, unloading_occurred); |
|
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|
2154 } |
|
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|
2155 break; |
|
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|
2156 |
|
20619
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|
2157 case relocInfo::metadata_type: |
|
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|
2158 if (mark_metadata_on_stack) { |
|
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|
2159 mark_metadata_on_stack_at(&iter); |
|
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|
2160 } |
|
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|
2161 } |
|
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|
2162 } |
|
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|
2163 |
|
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|
2164 if (mark_metadata_on_stack) { |
|
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|
2165 mark_metadata_on_stack_non_relocs(); |
|
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|
2166 } |
|
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|
2167 |
|
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|
2168 if (is_unloaded) { |
|
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|
2169 return postponed; |
|
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|
2170 } |
|
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|
2171 |
|
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|
2172 // Scopes |
|
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|
2173 for (oop* p = oops_begin(); p < oops_end(); p++) { |
|
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|
2174 if (*p == Universe::non_oop_word()) continue; // skip non-oops |
|
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|
2175 if (can_unload(is_alive, p, unloading_occurred)) { |
|
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|
2176 is_unloaded = true; |
|
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|
2177 break; |
|
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|
2178 } |
|
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|
2179 } |
|
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|
2180 |
|
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|
2181 if (is_unloaded) { |
|
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|
2182 return postponed; |
|
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|
2183 } |
|
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|
2184 |
|
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|
2185 // Ensure that all metadata is still alive |
|
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|
2186 verify_metadata_loaders(low_boundary, is_alive); |
|
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|
2187 |
|
2c6ef90f030a
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|
2188 return postponed; |
|
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|
2189 } |
|
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|
2190 |
|
2c6ef90f030a
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|
2191 void nmethod::do_unloading_parallel_postponed(BoolObjectClosure* is_alive, bool unloading_occurred) { |
|
2c6ef90f030a
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|
2192 ResourceMark rm; |
|
2c6ef90f030a
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|
2193 |
|
2c6ef90f030a
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|
2194 // Make sure the oop's ready to receive visitors |
|
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|
2195 assert(!is_zombie(), |
|
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|
2196 "should not call follow on zombie nmethod"); |
|
2c6ef90f030a
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|
2197 |
|
2c6ef90f030a
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|
2198 // If the method is not entrant then a JMP is plastered over the |
|
2c6ef90f030a
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|
2199 // first few bytes. If an oop in the old code was there, that oop |
|
2c6ef90f030a
8049421: G1 Class Unloading after completing a concurrent mark cycle
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|
2200 // should not get GC'd. Skip the first few bytes of oops on |
|
2c6ef90f030a
8049421: G1 Class Unloading after completing a concurrent mark cycle
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|
2201 // not-entrant methods. |
|
2c6ef90f030a
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|
2202 address low_boundary = verified_entry_point(); |
|
2c6ef90f030a
8049421: G1 Class Unloading after completing a concurrent mark cycle
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|
2203 if (is_not_entrant()) { |
|
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8049421: G1 Class Unloading after completing a concurrent mark cycle
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|
2204 low_boundary += NativeJump::instruction_size; |
|
2c6ef90f030a
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|
2205 // %%% Note: On SPARC we patch only a 4-byte trap, not a full NativeJump. |
|
2c6ef90f030a
8049421: G1 Class Unloading after completing a concurrent mark cycle
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|
2206 // (See comment above.) |
|
2c6ef90f030a
8049421: G1 Class Unloading after completing a concurrent mark cycle
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|
2207 } |
|
2c6ef90f030a
8049421: G1 Class Unloading after completing a concurrent mark cycle
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diff
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|
2208 |
|
2c6ef90f030a
8049421: G1 Class Unloading after completing a concurrent mark cycle
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|
2209 RelocIterator iter(this, low_boundary); |
|
2c6ef90f030a
8049421: G1 Class Unloading after completing a concurrent mark cycle
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|
2210 while(iter.next()) { |
|
2c6ef90f030a
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|
2211 |
|
2c6ef90f030a
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|
2212 switch (iter.type()) { |
|
2c6ef90f030a
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|
2213 |
|
2c6ef90f030a
8049421: G1 Class Unloading after completing a concurrent mark cycle
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|
2214 case relocInfo::virtual_call_type: |
|
2c6ef90f030a
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|
2215 clean_if_nmethod_is_unloaded(CompiledIC_at(&iter), is_alive, this); |
|
2c6ef90f030a
8049421: G1 Class Unloading after completing a concurrent mark cycle
stefank
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|
2216 break; |
|
2c6ef90f030a
8049421: G1 Class Unloading after completing a concurrent mark cycle
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diff
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|
2217 |
|
2c6ef90f030a
8049421: G1 Class Unloading after completing a concurrent mark cycle
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|
2218 case relocInfo::opt_virtual_call_type: |
|
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|
2219 clean_if_nmethod_is_unloaded(CompiledIC_at(&iter), is_alive, this); |
|
2c6ef90f030a
8049421: G1 Class Unloading after completing a concurrent mark cycle
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|
2220 break; |
|
2c6ef90f030a
8049421: G1 Class Unloading after completing a concurrent mark cycle
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diff
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|
2221 |
|
2c6ef90f030a
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|
2222 case relocInfo::static_call_type: |
|
2c6ef90f030a
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|
2223 clean_if_nmethod_is_unloaded(compiledStaticCall_at(iter.reloc()), is_alive, this); |
|
2c6ef90f030a
8049421: G1 Class Unloading after completing a concurrent mark cycle
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|
2224 break; |
|
2c6ef90f030a
8049421: G1 Class Unloading after completing a concurrent mark cycle
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diff
changeset
|
2225 } |
|
2c6ef90f030a
8049421: G1 Class Unloading after completing a concurrent mark cycle
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diff
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|
2226 } |
|
2c6ef90f030a
8049421: G1 Class Unloading after completing a concurrent mark cycle
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diff
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|
2227 } |
|
2c6ef90f030a
8049421: G1 Class Unloading after completing a concurrent mark cycle
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|
2228 |
|
6725
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6964458: Reimplement class meta-data storage to use native memory
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|
2229 #ifdef ASSERT |
|
da91efe96a93
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|
2230 |
|
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
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|
2231 class CheckClass : AllStatic { |
|
da91efe96a93
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|
2232 static BoolObjectClosure* _is_alive; |
|
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
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|
2233 |
|
da91efe96a93
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|
2234 // Check class_loader is alive for this bit of metadata. |
|
da91efe96a93
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|
2235 static void check_class(Metadata* md) { |
|
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
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|
2236 Klass* klass = NULL; |
|
da91efe96a93
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|
2237 if (md->is_klass()) { |
|
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
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|
2238 klass = ((Klass*)md); |
|
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
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|
2239 } else if (md->is_method()) { |
|
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
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|
2240 klass = ((Method*)md)->method_holder(); |
|
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
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|
2241 } else if (md->is_methodData()) { |
|
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6964458: Reimplement class meta-data storage to use native memory
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|
2242 klass = ((MethodData*)md)->method()->method_holder(); |
|
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|
2243 } else { |
|
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
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diff
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|
2244 md->print(); |
|
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
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|
2245 ShouldNotReachHere(); |
|
da91efe96a93
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|
2246 } |
|
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|
2247 assert(klass->is_loader_alive(_is_alive), "must be alive"); |
|
da91efe96a93
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|
2248 } |
|
da91efe96a93
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|
2249 public: |
|
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|
2250 static void do_check_class(BoolObjectClosure* is_alive, nmethod* nm) { |
|
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|
2251 assert(SafepointSynchronize::is_at_safepoint(), "this is only ok at safepoint"); |
|
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|
2252 _is_alive = is_alive; |
|
da91efe96a93
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|
2253 nm->metadata_do(check_class); |
|
da91efe96a93
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|
2254 } |
|
da91efe96a93
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|
2255 }; |
|
da91efe96a93
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|
2256 |
|
da91efe96a93
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|
2257 // This is called during a safepoint so can use static data |
|
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|
2258 BoolObjectClosure* CheckClass::_is_alive = NULL; |
|
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
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diff
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|
2259 #endif // ASSERT |
|
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
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diff
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|
2260 |
|
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
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diff
changeset
|
2261 |
|
da91efe96a93
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|
2262 // Processing of oop references should have been sufficient to keep |
|
da91efe96a93
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changeset
|
2263 // all strong references alive. Any weak references should have been |
|
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
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|
2264 // cleared as well. Visit all the metadata and ensure that it's |
|
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
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diff
changeset
|
2265 // really alive. |
|
da91efe96a93
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|
2266 void nmethod::verify_metadata_loaders(address low_boundary, BoolObjectClosure* is_alive) { |
|
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diff
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|
2267 #ifdef ASSERT |
| 0 | 2268 RelocIterator iter(this, low_boundary); |
| 2269 while (iter.next()) { | |
|
6725
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changeset
|
2270 // static_stub_Relocations may have dangling references to |
|
da91efe96a93
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diff
changeset
|
2271 // Method*s so trim them out here. Otherwise it looks like |
|
da91efe96a93
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|
2272 // compiled code is maintaining a link to dead metadata. |
|
da91efe96a93
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|
2273 address static_call_addr = NULL; |
|
da91efe96a93
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|
2274 if (iter.type() == relocInfo::opt_virtual_call_type) { |
|
20277
882004b9e7e1
8047362: Add a version of CompiledIC_at that doesn't create a new RelocIterator
stefank
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20269
diff
changeset
|
2275 CompiledIC* cic = CompiledIC_at(&iter); |
|
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2276 if (!cic->is_call_to_interpreted()) { |
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2277 static_call_addr = iter.addr(); |
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2278 } |
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2279 } else if (iter.type() == relocInfo::static_call_type) { |
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2280 CompiledStaticCall* csc = compiledStaticCall_at(iter.reloc()); |
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2281 if (!csc->is_call_to_interpreted()) { |
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2282 static_call_addr = iter.addr(); |
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2283 } |
|
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2284 } |
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2285 if (static_call_addr != NULL) { |
|
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2286 RelocIterator sciter(this, low_boundary); |
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2287 while (sciter.next()) { |
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2288 if (sciter.type() == relocInfo::static_stub_type && |
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2289 sciter.static_stub_reloc()->static_call() == static_call_addr) { |
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2290 sciter.static_stub_reloc()->clear_inline_cache(); |
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2291 } |
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2292 } |
| 0 | 2293 } |
| 2294 } | |
|
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2295 // Check that the metadata embedded in the nmethod is alive |
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2296 CheckClass::do_check_class(is_alive, this); |
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2297 #endif |
| 0 | 2298 } |
| 2299 | |
|
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2300 |
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2301 // Iterate over metadata calling this function. Used by RedefineClasses |
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2302 void nmethod::metadata_do(void f(Metadata*)) { |
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2303 address low_boundary = verified_entry_point(); |
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2304 if (is_not_entrant()) { |
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2305 low_boundary += NativeJump::instruction_size; |
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2306 // %%% Note: On SPARC we patch only a 4-byte trap, not a full NativeJump. |
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2307 // (See comment above.) |
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2308 } |
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2309 { |
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2310 // Visit all immediate references that are embedded in the instruction stream. |
|
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2311 RelocIterator iter(this, low_boundary); |
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2312 while (iter.next()) { |
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2313 if (iter.type() == relocInfo::metadata_type ) { |
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2314 metadata_Relocation* r = iter.metadata_reloc(); |
|
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2315 // In this metadata, we must only follow those metadatas directly embedded in |
|
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2316 // the code. Other metadatas (oop_index>0) are seen as part of |
|
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2317 // the metadata section below. |
|
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2318 assert(1 == (r->metadata_is_immediate()) + |
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2319 (r->metadata_addr() >= metadata_begin() && r->metadata_addr() < metadata_end()), |
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2320 "metadata must be found in exactly one place"); |
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2321 if (r->metadata_is_immediate() && r->metadata_value() != NULL) { |
|
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2322 Metadata* md = r->metadata_value(); |
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2323 f(md); |
|
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2324 } |
|
10253
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2325 } else if (iter.type() == relocInfo::virtual_call_type) { |
|
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2326 // Check compiledIC holders associated with this nmethod |
|
20277
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2327 CompiledIC *ic = CompiledIC_at(&iter); |
|
10253
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2328 if (ic->is_icholder_call()) { |
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2329 CompiledICHolder* cichk = ic->cached_icholder(); |
|
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2330 f(cichk->holder_method()); |
|
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2331 f(cichk->holder_klass()); |
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2332 } else { |
|
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2333 Metadata* ic_oop = ic->cached_metadata(); |
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2334 if (ic_oop != NULL) { |
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2335 f(ic_oop); |
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2336 } |
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2337 } |
|
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2338 } |
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2339 } |
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2340 } |
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2341 |
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2342 // Visit the metadata section |
|
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2343 for (Metadata** p = metadata_begin(); p < metadata_end(); p++) { |
|
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2344 if (*p == Universe::non_oop_word() || *p == NULL) continue; // skip non-oops |
|
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2345 Metadata* md = *p; |
|
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2346 f(md); |
|
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2347 } |
|
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2348 |
|
20619
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2349 // Visit metadata not embedded in the other places. |
|
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2350 if (_method != NULL) f(_method); |
|
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2351 } |
|
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2352 |
| 12080 | 2353 void nmethod::oops_do(OopClosure* f, bool allow_zombie) { |
| 0 | 2354 // make sure the oops ready to receive visitors |
| 12080 | 2355 assert(allow_zombie || !is_zombie(), "should not call follow on zombie nmethod"); |
| 2356 assert(!is_unloaded(), "should not call follow on unloaded nmethod"); | |
| 0 | 2357 |
| 2358 // If the method is not entrant or zombie then a JMP is plastered over the | |
| 2359 // first few bytes. If an oop in the old code was there, that oop | |
| 2360 // should not get GC'd. Skip the first few bytes of oops on | |
| 2361 // not-entrant methods. | |
| 2362 address low_boundary = verified_entry_point(); | |
| 2363 if (is_not_entrant()) { | |
| 2364 low_boundary += NativeJump::instruction_size; | |
| 2365 // %%% Note: On SPARC we patch only a 4-byte trap, not a full NativeJump. | |
| 2366 // (See comment above.) | |
| 2367 } | |
| 2368 | |
| 9707 | 2369 #ifdef GRAAL |
| 2370 if (_graal_installed_code != NULL) { | |
| 2371 f->do_oop((oop*) &_graal_installed_code); | |
| 2372 } | |
|
13641
5a9afbf72714
Add a speculation oop for uncommon trap deoptimization. Save it in the SpeculationLog during deoptimization.
Gilles Duboscq <duboscq@ssw.jku.at>
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13451
diff
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|
2373 if (_speculation_log != NULL) { |
|
5a9afbf72714
Add a speculation oop for uncommon trap deoptimization. Save it in the SpeculationLog during deoptimization.
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|
2374 f->do_oop((oop*) &_speculation_log); |
| 9707 | 2375 } |
| 2376 #endif | |
| 2377 | |
| 0 | 2378 RelocIterator iter(this, low_boundary); |
| 941 | 2379 |
| 0 | 2380 while (iter.next()) { |
| 2381 if (iter.type() == relocInfo::oop_type ) { | |
| 2382 oop_Relocation* r = iter.oop_reloc(); | |
| 2383 // In this loop, we must only follow those oops directly embedded in | |
| 2384 // the code. Other oops (oop_index>0) are seen as part of scopes_oops. | |
| 941 | 2385 assert(1 == (r->oop_is_immediate()) + |
| 2386 (r->oop_addr() >= oops_begin() && r->oop_addr() < oops_end()), | |
| 2387 "oop must be found in exactly one place"); | |
| 0 | 2388 if (r->oop_is_immediate() && r->oop_value() != NULL) { |
| 2389 f->do_oop(r->oop_addr()); | |
| 2390 } | |
| 2391 } | |
| 2392 } | |
| 2393 | |
| 2394 // Scopes | |
|
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2395 // This includes oop constants not inlined in the code stream. |
| 0 | 2396 for (oop* p = oops_begin(); p < oops_end(); p++) { |
| 2397 if (*p == Universe::non_oop_word()) continue; // skip non-oops | |
| 2398 f->do_oop(p); | |
| 2399 } | |
| 2400 } | |
| 2401 | |
|
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2402 #define NMETHOD_SENTINEL ((nmethod*)badAddress) |
|
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2403 |
|
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|
2404 nmethod* volatile nmethod::_oops_do_mark_nmethods; |
|
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|
2405 |
|
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|
2406 // An nmethod is "marked" if its _mark_link is set non-null. |
|
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|
2407 // Even if it is the end of the linked list, it will have a non-null link value, |
|
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2408 // as long as it is on the list. |
|
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|
2409 // This code must be MP safe, because it is used from parallel GC passes. |
|
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|
2410 bool nmethod::test_set_oops_do_mark() { |
|
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|
2411 assert(nmethod::oops_do_marking_is_active(), "oops_do_marking_prologue must be called"); |
|
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|
2412 nmethod* observed_mark_link = _oops_do_mark_link; |
|
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|
2413 if (observed_mark_link == NULL) { |
|
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|
2414 // Claim this nmethod for this thread to mark. |
|
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|
2415 observed_mark_link = (nmethod*) |
|
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|
2416 Atomic::cmpxchg_ptr(NMETHOD_SENTINEL, &_oops_do_mark_link, NULL); |
|
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|
2417 if (observed_mark_link == NULL) { |
|
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|
2418 |
|
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|
2419 // Atomically append this nmethod (now claimed) to the head of the list: |
|
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|
2420 nmethod* observed_mark_nmethods = _oops_do_mark_nmethods; |
|
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|
2421 for (;;) { |
|
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|
2422 nmethod* required_mark_nmethods = observed_mark_nmethods; |
|
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|
2423 _oops_do_mark_link = required_mark_nmethods; |
|
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|
2424 observed_mark_nmethods = (nmethod*) |
|
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|
2425 Atomic::cmpxchg_ptr(this, &_oops_do_mark_nmethods, required_mark_nmethods); |
|
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|
2426 if (observed_mark_nmethods == required_mark_nmethods) |
|
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diff
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|
2427 break; |
|
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|
2428 } |
|
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|
2429 // Mark was clear when we first saw this guy. |
|
2405
3d58a4983660
7022998: JSR 292 recursive method handle calls inline themselves infinitely
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|
2430 NOT_PRODUCT(if (TraceScavenge) print_on(tty, "oops_do, mark")); |
|
989
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|
2431 return false; |
|
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|
2432 } |
|
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|
2433 } |
|
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|
2434 // On fall through, another racing thread marked this nmethod before we did. |
|
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|
2435 return true; |
|
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|
2436 } |
|
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|
2437 |
|
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|
2438 void nmethod::oops_do_marking_prologue() { |
|
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|
2439 NOT_PRODUCT(if (TraceScavenge) tty->print_cr("[oops_do_marking_prologue")); |
|
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|
2440 assert(_oops_do_mark_nmethods == NULL, "must not call oops_do_marking_prologue twice in a row"); |
|
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|
2441 // We use cmpxchg_ptr instead of regular assignment here because the user |
|
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|
2442 // may fork a bunch of threads, and we need them all to see the same state. |
|
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|
2443 void* observed = Atomic::cmpxchg_ptr(NMETHOD_SENTINEL, &_oops_do_mark_nmethods, NULL); |
|
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|
2444 guarantee(observed == NULL, "no races in this sequential code"); |
|
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|
2445 } |
|
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|
2446 |
|
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|
2447 void nmethod::oops_do_marking_epilogue() { |
|
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|
2448 assert(_oops_do_mark_nmethods != NULL, "must not call oops_do_marking_epilogue twice in a row"); |
|
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|
2449 nmethod* cur = _oops_do_mark_nmethods; |
|
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|
2450 while (cur != NMETHOD_SENTINEL) { |
|
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|
2451 assert(cur != NULL, "not NULL-terminated"); |
|
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|
2452 nmethod* next = cur->_oops_do_mark_link; |
|
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|
2453 cur->_oops_do_mark_link = NULL; |
|
20278
2c6ef90f030a
8049421: G1 Class Unloading after completing a concurrent mark cycle
stefank
parents:
20277
diff
changeset
|
2454 cur->verify_oop_relocations(); |
|
2405
3d58a4983660
7022998: JSR 292 recursive method handle calls inline themselves infinitely
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diff
changeset
|
2455 NOT_PRODUCT(if (TraceScavenge) cur->print_on(tty, "oops_do, unmark")); |
|
989
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|
2456 cur = next; |
|
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|
2457 } |
|
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|
2458 void* required = _oops_do_mark_nmethods; |
|
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|
2459 void* observed = Atomic::cmpxchg_ptr(NULL, &_oops_do_mark_nmethods, required); |
|
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|
2460 guarantee(observed == required, "no races in this sequential code"); |
|
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|
2461 NOT_PRODUCT(if (TraceScavenge) tty->print_cr("oops_do_marking_epilogue]")); |
|
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|
2462 } |
|
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diff
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|
2463 |
|
148e5441d916
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|
2464 class DetectScavengeRoot: public OopClosure { |
|
148e5441d916
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|
2465 bool _detected_scavenge_root; |
|
148e5441d916
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|
2466 public: |
|
148e5441d916
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diff
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|
2467 DetectScavengeRoot() : _detected_scavenge_root(false) |
|
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diff
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|
2468 { NOT_PRODUCT(_print_nm = NULL); } |
|
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|
2469 bool detected_scavenge_root() { return _detected_scavenge_root; } |
|
148e5441d916
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|
2470 virtual void do_oop(oop* p) { |
|
148e5441d916
6863023: need non-perm oops in code cache for JSR 292
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diff
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|
2471 if ((*p) != NULL && (*p)->is_scavengable()) { |
|
148e5441d916
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diff
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|
2472 NOT_PRODUCT(maybe_print(p)); |
|
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diff
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|
2473 _detected_scavenge_root = true; |
|
148e5441d916
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parents:
931
diff
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|
2474 } |
|
148e5441d916
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diff
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|
2475 } |
|
148e5441d916
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|
2476 virtual void do_oop(narrowOop* p) { ShouldNotReachHere(); } |
|
148e5441d916
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|
2477 |
|
148e5441d916
6863023: need non-perm oops in code cache for JSR 292
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diff
changeset
|
2478 #ifndef PRODUCT |
|
148e5441d916
6863023: need non-perm oops in code cache for JSR 292
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diff
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|
2479 nmethod* _print_nm; |
|
148e5441d916
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diff
changeset
|
2480 void maybe_print(oop* p) { |
|
148e5441d916
6863023: need non-perm oops in code cache for JSR 292
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diff
changeset
|
2481 if (_print_nm == NULL) return; |
|
148e5441d916
6863023: need non-perm oops in code cache for JSR 292
jrose
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diff
changeset
|
2482 if (!_detected_scavenge_root) _print_nm->print_on(tty, "new scavenge root"); |
|
3377
2aa9ddbb9e60
7041789: 30% perf regression with c2/arm following 7017732
jmasa
parents:
2405
diff
changeset
|
2483 tty->print_cr(""PTR_FORMAT"[offset=%d] detected scavengable oop "PTR_FORMAT" (found at "PTR_FORMAT")", |
|
989
148e5441d916
6863023: need non-perm oops in code cache for JSR 292
jrose
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931
diff
changeset
|
2484 _print_nm, (int)((intptr_t)p - (intptr_t)_print_nm), |
|
12316
190899198332
7195622: CheckUnhandledOops has limited usefulness now
hseigel
parents:
12175
diff
changeset
|
2485 (void *)(*p), (intptr_t)p); |
|
989
148e5441d916
6863023: need non-perm oops in code cache for JSR 292
jrose
parents:
931
diff
changeset
|
2486 (*p)->print(); |
|
148e5441d916
6863023: need non-perm oops in code cache for JSR 292
jrose
parents:
931
diff
changeset
|
2487 } |
|
148e5441d916
6863023: need non-perm oops in code cache for JSR 292
jrose
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931
diff
changeset
|
2488 #endif //PRODUCT |
|
148e5441d916
6863023: need non-perm oops in code cache for JSR 292
jrose
parents:
931
diff
changeset
|
2489 }; |
|
148e5441d916
6863023: need non-perm oops in code cache for JSR 292
jrose
parents:
931
diff
changeset
|
2490 |
|
148e5441d916
6863023: need non-perm oops in code cache for JSR 292
jrose
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931
diff
changeset
|
2491 bool nmethod::detect_scavenge_root_oops() { |
|
148e5441d916
6863023: need non-perm oops in code cache for JSR 292
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931
diff
changeset
|
2492 DetectScavengeRoot detect_scavenge_root; |
|
148e5441d916
6863023: need non-perm oops in code cache for JSR 292
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931
diff
changeset
|
2493 NOT_PRODUCT(if (TraceScavenge) detect_scavenge_root._print_nm = this); |
|
148e5441d916
6863023: need non-perm oops in code cache for JSR 292
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931
diff
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|
2494 oops_do(&detect_scavenge_root); |
|
148e5441d916
6863023: need non-perm oops in code cache for JSR 292
jrose
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931
diff
changeset
|
2495 return detect_scavenge_root.detected_scavenge_root(); |
|
148e5441d916
6863023: need non-perm oops in code cache for JSR 292
jrose
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931
diff
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|
2496 } |
|
148e5441d916
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|
2497 |
| 0 | 2498 // Method that knows how to preserve outgoing arguments at call. This method must be |
| 2499 // called with a frame corresponding to a Java invoke | |
| 2500 void nmethod::preserve_callee_argument_oops(frame fr, const RegisterMap *reg_map, OopClosure* f) { | |
| 1692 | 2501 #ifndef SHARK |
| 0 | 2502 if (!method()->is_native()) { |
| 2503 SimpleScopeDesc ssd(this, fr.pc()); | |
| 2142 | 2504 Bytecode_invoke call(ssd.method(), ssd.bci()); |
| 10390 | 2505 bool has_receiver = call.has_receiver(); |
| 2506 bool has_appendix = call.has_appendix(); | |
|
2177
3582bf76420e
6990754: Use native memory and reference counting to implement SymbolTable
coleenp
parents:
2142
diff
changeset
|
2507 Symbol* signature = call.signature(); |
| 10390 | 2508 fr.oops_compiled_arguments_do(signature, has_receiver, has_appendix, reg_map, f); |
| 0 | 2509 } |
| 1692 | 2510 #endif // !SHARK |
| 0 | 2511 } |
| 2512 | |
| 2513 | |
| 2514 oop nmethod::embeddedOop_at(u_char* p) { | |
|
2349
4cd9add59b1e
7024866: # assert(limit == NULL || limit <= nm->code_end()) failed: in bounds
never
parents:
2321
diff
changeset
|
2515 RelocIterator iter(this, p, p + 1); |
| 0 | 2516 while (iter.next()) |
| 2517 if (iter.type() == relocInfo::oop_type) { | |
| 2518 return iter.oop_reloc()->oop_value(); | |
| 2519 } | |
| 2520 return NULL; | |
| 2521 } | |
| 2522 | |
| 2523 | |
| 2524 inline bool includes(void* p, void* from, void* to) { | |
| 2525 return from <= p && p < to; | |
| 2526 } | |
| 2527 | |
| 2528 | |
| 2529 void nmethod::copy_scopes_pcs(PcDesc* pcs, int count) { | |
| 2530 assert(count >= 2, "must be sentinel values, at least"); | |
| 2531 | |
| 2532 #ifdef ASSERT | |
| 2533 // must be sorted and unique; we do a binary search in find_pc_desc() | |
| 2534 int prev_offset = pcs[0].pc_offset(); | |
| 2535 assert(prev_offset == PcDesc::lower_offset_limit, | |
| 2536 "must start with a sentinel"); | |
| 2537 for (int i = 1; i < count; i++) { | |
| 2538 int this_offset = pcs[i].pc_offset(); | |
| 2539 assert(this_offset > prev_offset, "offsets must be sorted"); | |
| 2540 prev_offset = this_offset; | |
| 2541 } | |
| 2542 assert(prev_offset == PcDesc::upper_offset_limit, | |
| 2543 "must end with a sentinel"); | |
| 2544 #endif //ASSERT | |
| 2545 | |
|
1135
e66fd840cb6b
6893081: method handle & invokedynamic code needs additional cleanup (post 6815692, 6858164)
twisti
parents:
1109
diff
changeset
|
2546 // Search for MethodHandle invokes and tag the nmethod. |
|
e66fd840cb6b
6893081: method handle & invokedynamic code needs additional cleanup (post 6815692, 6858164)
twisti
parents:
1109
diff
changeset
|
2547 for (int i = 0; i < count; i++) { |
|
e66fd840cb6b
6893081: method handle & invokedynamic code needs additional cleanup (post 6815692, 6858164)
twisti
parents:
1109
diff
changeset
|
2548 if (pcs[i].is_method_handle_invoke()) { |
|
e66fd840cb6b
6893081: method handle & invokedynamic code needs additional cleanup (post 6815692, 6858164)
twisti
parents:
1109
diff
changeset
|
2549 set_has_method_handle_invokes(true); |
|
e66fd840cb6b
6893081: method handle & invokedynamic code needs additional cleanup (post 6815692, 6858164)
twisti
parents:
1109
diff
changeset
|
2550 break; |
|
e66fd840cb6b
6893081: method handle & invokedynamic code needs additional cleanup (post 6815692, 6858164)
twisti
parents:
1109
diff
changeset
|
2551 } |
|
e66fd840cb6b
6893081: method handle & invokedynamic code needs additional cleanup (post 6815692, 6858164)
twisti
parents:
1109
diff
changeset
|
2552 } |
|
2083
7d9caaedafce
6990933: assert(sender_cb) failed: sanity in frame::sender_for_interpreter_frame
twisti
parents:
1972
diff
changeset
|
2553 assert(has_method_handle_invokes() == (_deoptimize_mh_offset != -1), "must have deopt mh handler"); |
|
1135
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6893081: method handle & invokedynamic code needs additional cleanup (post 6815692, 6858164)
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1109
diff
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|
2554 |
| 0 | 2555 int size = count * sizeof(PcDesc); |
| 2556 assert(scopes_pcs_size() >= size, "oob"); | |
| 2557 memcpy(scopes_pcs_begin(), pcs, size); | |
| 2558 | |
| 2559 // Adjust the final sentinel downward. | |
| 2560 PcDesc* last_pc = &scopes_pcs_begin()[count-1]; | |
| 2561 assert(last_pc->pc_offset() == PcDesc::upper_offset_limit, "sanity"); | |
| 1748 | 2562 last_pc->set_pc_offset(content_size() + 1); |
| 0 | 2563 for (; last_pc + 1 < scopes_pcs_end(); last_pc += 1) { |
| 2564 // Fill any rounding gaps with copies of the last record. | |
| 2565 last_pc[1] = last_pc[0]; | |
| 2566 } | |
| 2567 // The following assert could fail if sizeof(PcDesc) is not | |
| 2568 // an integral multiple of oopSize (the rounding term). | |
| 2569 // If it fails, change the logic to always allocate a multiple | |
| 2570 // of sizeof(PcDesc), and fill unused words with copies of *last_pc. | |
| 2571 assert(last_pc + 1 == scopes_pcs_end(), "must match exactly"); | |
| 2572 } | |
| 2573 | |
| 2574 void nmethod::copy_scopes_data(u_char* buffer, int size) { | |
| 2575 assert(scopes_data_size() >= size, "oob"); | |
| 2576 memcpy(scopes_data_begin(), buffer, size); | |
| 2577 } | |
| 2578 | |
| 2579 | |
| 2580 #ifdef ASSERT | |
| 2581 static PcDesc* linear_search(nmethod* nm, int pc_offset, bool approximate) { | |
| 2582 PcDesc* lower = nm->scopes_pcs_begin(); | |
| 2583 PcDesc* upper = nm->scopes_pcs_end(); | |
| 2584 lower += 1; // exclude initial sentinel | |
| 2585 PcDesc* res = NULL; | |
| 2586 for (PcDesc* p = lower; p < upper; p++) { | |
|
12675
7fedc59e2cdc
Split code cache stats for the different compilers
Gilles Duboscq <duboscq@ssw.jku.at>
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12414
diff
changeset
|
2587 NOT_PRODUCT(--pc_nmethod_stats.pc_desc_tests); // don't count this call to match_desc |
| 0 | 2588 if (match_desc(p, pc_offset, approximate)) { |
| 2589 if (res == NULL) | |
| 2590 res = p; | |
| 2591 else | |
| 2592 res = (PcDesc*) badAddress; | |
| 2593 } | |
| 2594 } | |
| 2595 return res; | |
| 2596 } | |
| 2597 #endif | |
| 2598 | |
| 2599 | |
| 2600 // Finds a PcDesc with real-pc equal to "pc" | |
| 2601 PcDesc* nmethod::find_pc_desc_internal(address pc, bool approximate) { | |
| 1748 | 2602 address base_address = code_begin(); |
| 0 | 2603 if ((pc < base_address) || |
| 2604 (pc - base_address) >= (ptrdiff_t) PcDesc::upper_offset_limit) { | |
| 2605 return NULL; // PC is wildly out of range | |
| 2606 } | |
| 2607 int pc_offset = (int) (pc - base_address); | |
| 2608 | |
| 2609 // Check the PcDesc cache if it contains the desired PcDesc | |
| 2610 // (This as an almost 100% hit rate.) | |
| 2611 PcDesc* res = _pc_desc_cache.find_pc_desc(pc_offset, approximate); | |
| 2612 if (res != NULL) { | |
| 2613 assert(res == linear_search(this, pc_offset, approximate), "cache ok"); | |
| 2614 return res; | |
| 2615 } | |
| 2616 | |
| 2617 // Fallback algorithm: quasi-linear search for the PcDesc | |
| 2618 // Find the last pc_offset less than the given offset. | |
| 2619 // The successor must be the required match, if there is a match at all. | |
| 2620 // (Use a fixed radix to avoid expensive affine pointer arithmetic.) | |
| 2621 PcDesc* lower = scopes_pcs_begin(); | |
| 2622 PcDesc* upper = scopes_pcs_end(); | |
| 2623 upper -= 1; // exclude final sentinel | |
| 2624 if (lower >= upper) return NULL; // native method; no PcDescs at all | |
| 2625 | |
| 2626 #define assert_LU_OK \ | |
| 2627 /* invariant on lower..upper during the following search: */ \ | |
| 2628 assert(lower->pc_offset() < pc_offset, "sanity"); \ | |
| 2629 assert(upper->pc_offset() >= pc_offset, "sanity") | |
| 2630 assert_LU_OK; | |
| 2631 | |
| 2632 // Use the last successful return as a split point. | |
| 2633 PcDesc* mid = _pc_desc_cache.last_pc_desc(); | |
|
12675
7fedc59e2cdc
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Gilles Duboscq <duboscq@ssw.jku.at>
parents:
12414
diff
changeset
|
2634 NOT_PRODUCT(++pc_nmethod_stats.pc_desc_searches); |
| 0 | 2635 if (mid->pc_offset() < pc_offset) { |
| 2636 lower = mid; | |
| 2637 } else { | |
| 2638 upper = mid; | |
| 2639 } | |
| 2640 | |
| 2641 // Take giant steps at first (4096, then 256, then 16, then 1) | |
| 2642 const int LOG2_RADIX = 4 /*smaller steps in debug mode:*/ debug_only(-1); | |
| 2643 const int RADIX = (1 << LOG2_RADIX); | |
| 2644 for (int step = (1 << (LOG2_RADIX*3)); step > 1; step >>= LOG2_RADIX) { | |
| 2645 while ((mid = lower + step) < upper) { | |
| 2646 assert_LU_OK; | |
|
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|
2647 NOT_PRODUCT(++pc_nmethod_stats.pc_desc_searches); |
| 0 | 2648 if (mid->pc_offset() < pc_offset) { |
| 2649 lower = mid; | |
| 2650 } else { | |
| 2651 upper = mid; | |
| 2652 break; | |
| 2653 } | |
| 2654 } | |
| 2655 assert_LU_OK; | |
| 2656 } | |
| 2657 | |
| 2658 // Sneak up on the value with a linear search of length ~16. | |
| 2659 while (true) { | |
| 2660 assert_LU_OK; | |
| 2661 mid = lower + 1; | |
|
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|
2662 NOT_PRODUCT(++pc_nmethod_stats.pc_desc_searches); |
| 0 | 2663 if (mid->pc_offset() < pc_offset) { |
| 2664 lower = mid; | |
| 2665 } else { | |
| 2666 upper = mid; | |
| 2667 break; | |
| 2668 } | |
| 2669 } | |
| 2670 #undef assert_LU_OK | |
| 2671 | |
| 2672 if (match_desc(upper, pc_offset, approximate)) { | |
| 2673 assert(upper == linear_search(this, pc_offset, approximate), "search ok"); | |
| 2674 _pc_desc_cache.add_pc_desc(upper); | |
| 2675 return upper; | |
| 2676 } else { | |
| 2677 assert(NULL == linear_search(this, pc_offset, approximate), "search ok"); | |
| 2678 return NULL; | |
| 2679 } | |
| 2680 } | |
| 2681 | |
| 2682 | |
| 2683 bool nmethod::check_all_dependencies() { | |
| 2684 bool found_check = false; | |
| 2685 // wholesale check of all dependencies | |
| 2686 for (Dependencies::DepStream deps(this); deps.next(); ) { | |
| 2687 if (deps.check_dependency() != NULL) { | |
| 2688 found_check = true; | |
| 2689 NOT_DEBUG(break); | |
| 2690 } | |
| 2691 } | |
| 2692 return found_check; // tell caller if we found anything | |
| 2693 } | |
| 2694 | |
| 2695 bool nmethod::check_dependency_on(DepChange& changes) { | |
| 2696 // What has happened: | |
| 2697 // 1) a new class dependee has been added | |
| 2698 // 2) dependee and all its super classes have been marked | |
| 2699 bool found_check = false; // set true if we are upset | |
| 2700 for (Dependencies::DepStream deps(this); deps.next(); ) { | |
| 2701 // Evaluate only relevant dependencies. | |
| 2702 if (deps.spot_check_dependency_at(changes) != NULL) { | |
| 2703 found_check = true; | |
| 2704 NOT_DEBUG(break); | |
| 2705 } | |
| 2706 } | |
| 2707 return found_check; | |
| 2708 } | |
| 2709 | |
|
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|
2710 bool nmethod::is_evol_dependent_on(Klass* dependee) { |
|
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2711 InstanceKlass *dependee_ik = InstanceKlass::cast(dependee); |
|
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|
2712 Array<Method*>* dependee_methods = dependee_ik->methods(); |
| 0 | 2713 for (Dependencies::DepStream deps(this); deps.next(); ) { |
| 2714 if (deps.type() == Dependencies::evol_method) { | |
|
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|
2715 Method* method = deps.method_argument(0); |
| 0 | 2716 for (int j = 0; j < dependee_methods->length(); j++) { |
|
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|
2717 if (dependee_methods->at(j) == method) { |
| 0 | 2718 // RC_TRACE macro has an embedded ResourceMark |
| 2719 RC_TRACE(0x01000000, | |
| 2720 ("Found evol dependency of nmethod %s.%s(%s) compile_id=%d on method %s.%s(%s)", | |
|
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|
2721 _method->method_holder()->external_name(), |
| 0 | 2722 _method->name()->as_C_string(), |
| 2723 _method->signature()->as_C_string(), compile_id(), | |
|
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|
2724 method->method_holder()->external_name(), |
| 0 | 2725 method->name()->as_C_string(), |
| 2726 method->signature()->as_C_string())); | |
| 2727 if (TraceDependencies || LogCompilation) | |
| 2728 deps.log_dependency(dependee); | |
| 2729 return true; | |
| 2730 } | |
| 2731 } | |
| 2732 } | |
| 2733 } | |
| 2734 return false; | |
| 2735 } | |
| 2736 | |
| 2737 // Called from mark_for_deoptimization, when dependee is invalidated. | |
|
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|
2738 bool nmethod::is_dependent_on_method(Method* dependee) { |
| 0 | 2739 for (Dependencies::DepStream deps(this); deps.next(); ) { |
| 2740 if (deps.type() != Dependencies::evol_method) | |
| 2741 continue; | |
|
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|
2742 Method* method = deps.method_argument(0); |
| 0 | 2743 if (method == dependee) return true; |
| 2744 } | |
| 2745 return false; | |
| 2746 } | |
| 2747 | |
| 2748 | |
| 2749 bool nmethod::is_patchable_at(address instr_addr) { | |
| 1748 | 2750 assert(insts_contains(instr_addr), "wrong nmethod used"); |
| 0 | 2751 if (is_zombie()) { |
| 2752 // a zombie may never be patched | |
| 2753 return false; | |
| 2754 } | |
| 2755 return true; | |
| 2756 } | |
| 2757 | |
| 2758 | |
| 2759 address nmethod::continuation_for_implicit_exception(address pc) { | |
| 2760 // Exception happened outside inline-cache check code => we are inside | |
| 2761 // an active nmethod => use cpc to determine a return address | |
| 1748 | 2762 int exception_offset = pc - code_begin(); |
| 0 | 2763 int cont_offset = ImplicitExceptionTable(this).at( exception_offset ); |
| 2764 #ifdef ASSERT | |
| 2765 if (cont_offset == 0) { | |
| 2766 Thread* thread = ThreadLocalStorage::get_thread_slow(); | |
| 2767 ResetNoHandleMark rnm; // Might be called from LEAF/QUICK ENTRY | |
| 2768 HandleMark hm(thread); | |
| 2769 ResourceMark rm(thread); | |
| 2770 CodeBlob* cb = CodeCache::find_blob(pc); | |
| 2771 assert(cb != NULL && cb == this, ""); | |
| 2772 tty->print_cr("implicit exception happened at " INTPTR_FORMAT, pc); | |
| 2773 print(); | |
| 2774 method()->print_codes(); | |
| 2775 print_code(); | |
| 2776 print_pcs(); | |
| 2777 } | |
| 2778 #endif | |
| 1250 | 2779 if (cont_offset == 0) { |
| 2780 // Let the normal error handling report the exception | |
| 2781 return NULL; | |
| 2782 } | |
| 1748 | 2783 return code_begin() + cont_offset; |
| 0 | 2784 } |
| 2785 | |
| 2786 | |
| 2787 | |
| 2788 void nmethod_init() { | |
| 2789 // make sure you didn't forget to adjust the filler fields | |
| 2790 assert(sizeof(nmethod) % oopSize == 0, "nmethod size must be multiple of a word"); | |
| 2791 } | |
| 2792 | |
| 2793 | |
| 2794 //------------------------------------------------------------------------------------------- | |
| 2795 | |
| 2796 | |
| 2797 // QQQ might we make this work from a frame?? | |
| 2798 nmethodLocker::nmethodLocker(address pc) { | |
| 2799 CodeBlob* cb = CodeCache::find_blob(pc); | |
| 2800 guarantee(cb != NULL && cb->is_nmethod(), "bad pc for a nmethod found"); | |
| 2801 _nm = (nmethod*)cb; | |
| 2802 lock_nmethod(_nm); | |
| 2803 } | |
| 2804 | |
|
2342
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|
2805 // Only JvmtiDeferredEvent::compiled_method_unload_event() |
|
46a56fac55c7
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dcubed
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diff
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|
2806 // should pass zombie_ok == true. |
|
46a56fac55c7
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dcubed
parents:
2321
diff
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|
2807 void nmethodLocker::lock_nmethod(nmethod* nm, bool zombie_ok) { |
| 0 | 2808 if (nm == NULL) return; |
| 2809 Atomic::inc(&nm->_lock_count); | |
|
2342
46a56fac55c7
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dcubed
parents:
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diff
changeset
|
2810 guarantee(zombie_ok || !nm->is_zombie(), "cannot lock a zombie method"); |
| 0 | 2811 } |
| 2812 | |
| 2813 void nmethodLocker::unlock_nmethod(nmethod* nm) { | |
| 2814 if (nm == NULL) return; | |
| 2815 Atomic::dec(&nm->_lock_count); | |
| 2816 guarantee(nm->_lock_count >= 0, "unmatched nmethod lock/unlock"); | |
| 2817 } | |
| 2818 | |
| 1204 | 2819 |
| 2820 // ----------------------------------------------------------------------------- | |
| 2821 // nmethod::get_deopt_original_pc | |
| 2822 // | |
| 2823 // Return the original PC for the given PC if: | |
| 2824 // (a) the given PC belongs to a nmethod and | |
| 2825 // (b) it is a deopt PC | |
| 2826 address nmethod::get_deopt_original_pc(const frame* fr) { | |
| 2827 if (fr->cb() == NULL) return NULL; | |
| 2828 | |
| 2829 nmethod* nm = fr->cb()->as_nmethod_or_null(); | |
| 2830 if (nm != NULL && nm->is_deopt_pc(fr->pc())) | |
| 2831 return nm->get_original_pc(fr); | |
| 2832 | |
| 2833 return NULL; | |
| 0 | 2834 } |
| 2835 | |
| 2836 | |
| 2837 // ----------------------------------------------------------------------------- | |
|
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|
2838 // MethodHandle |
|
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|
2839 |
|
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|
2840 bool nmethod::is_method_handle_return(address return_pc) { |
|
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|
2841 if (!has_method_handle_invokes()) return false; |
|
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|
2842 PcDesc* pd = pc_desc_at(return_pc); |
|
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|
2843 if (pd == NULL) |
|
e66fd840cb6b
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|
2844 return false; |
|
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|
2845 return pd->is_method_handle_invoke(); |
|
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|
2846 } |
|
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twisti
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|
2847 |
|
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|
2848 |
|
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|
2849 // ----------------------------------------------------------------------------- |
| 0 | 2850 // Verification |
| 2851 | |
|
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|
2852 class VerifyOopsClosure: public OopClosure { |
|
148e5441d916
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|
2853 nmethod* _nm; |
|
148e5441d916
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diff
changeset
|
2854 bool _ok; |
|
148e5441d916
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|
2855 public: |
|
148e5441d916
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changeset
|
2856 VerifyOopsClosure(nmethod* nm) : _nm(nm), _ok(true) { } |
|
148e5441d916
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|
2857 bool ok() { return _ok; } |
|
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diff
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|
2858 virtual void do_oop(oop* p) { |
|
148e5441d916
6863023: need non-perm oops in code cache for JSR 292
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|
2859 if ((*p) == NULL || (*p)->is_oop()) return; |
|
148e5441d916
6863023: need non-perm oops in code cache for JSR 292
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931
diff
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|
2860 if (_ok) { |
|
148e5441d916
6863023: need non-perm oops in code cache for JSR 292
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changeset
|
2861 _nm->print_nmethod(true); |
|
148e5441d916
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jrose
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931
diff
changeset
|
2862 _ok = false; |
|
148e5441d916
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changeset
|
2863 } |
|
148e5441d916
6863023: need non-perm oops in code cache for JSR 292
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931
diff
changeset
|
2864 tty->print_cr("*** non-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
|
2865 (void *)(*p), (intptr_t)p, (int)((intptr_t)p - (intptr_t)_nm)); |
|
989
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|
2866 } |
|
148e5441d916
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|
2867 virtual void do_oop(narrowOop* p) { ShouldNotReachHere(); } |
|
148e5441d916
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|
2868 }; |
|
148e5441d916
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|
2869 |
| 0 | 2870 void nmethod::verify() { |
| 2871 | |
| 2872 // Hmm. OSR methods can be deopted but not marked as zombie or not_entrant | |
| 2873 // seems odd. | |
| 2874 | |
| 2875 if( is_zombie() || is_not_entrant() ) | |
| 2876 return; | |
| 2877 | |
| 2878 // Make sure all the entry points are correctly aligned for patching. | |
| 2879 NativeJump::check_verified_entry_alignment(entry_point(), verified_entry_point()); | |
| 2880 | |
|
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|
2881 // assert(method()->is_oop(), "must be valid"); |
| 0 | 2882 |
| 2883 ResourceMark rm; | |
| 2884 | |
| 2885 if (!CodeCache::contains(this)) { | |
|
1490
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6888954: argument formatting for assert() and friends
jcoomes
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diff
changeset
|
2886 fatal(err_msg("nmethod at " INTPTR_FORMAT " not in zone", this)); |
| 0 | 2887 } |
| 2888 | |
| 2889 if(is_native_method() ) | |
| 2890 return; | |
| 2891 | |
| 2892 nmethod* nm = CodeCache::find_nmethod(verified_entry_point()); | |
| 2893 if (nm != this) { | |
|
1490
f03d0a26bf83
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1489
diff
changeset
|
2894 fatal(err_msg("findNMethod did not find this nmethod (" INTPTR_FORMAT ")", |
|
f03d0a26bf83
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1489
diff
changeset
|
2895 this)); |
| 0 | 2896 } |
| 2897 | |
| 2898 for (PcDesc* p = scopes_pcs_begin(); p < scopes_pcs_end(); p++) { | |
| 2899 if (! p->verify(this)) { | |
| 2900 tty->print_cr("\t\tin nmethod at " INTPTR_FORMAT " (pcs)", this); | |
| 2901 } | |
| 2902 } | |
| 2903 | |
|
989
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changeset
|
2904 VerifyOopsClosure voc(this); |
|
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diff
changeset
|
2905 oops_do(&voc); |
|
148e5441d916
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931
diff
changeset
|
2906 assert(voc.ok(), "embedded oops must be OK"); |
|
148e5441d916
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931
diff
changeset
|
2907 verify_scavenge_root_oops(); |
|
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|
2908 |
| 0 | 2909 verify_scopes(); |
| 2910 } | |
| 2911 | |
| 2912 | |
| 2913 void nmethod::verify_interrupt_point(address call_site) { | |
|
13071
e2509677809c
8023037: Race between ciEnv::register_method and nmethod::make_not_entrant_or_zombie
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12334
diff
changeset
|
2914 // Verify IC only when nmethod installation is finished. |
| 13441 | 2915 bool is_installed = (method()->code() == this) // nmethod is in state 'in_use' and installed |
| 2916 || !this->is_in_use(); // nmethod is installed, but not in 'in_use' state | |
|
13071
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diff
changeset
|
2917 if (is_installed) { |
|
e2509677809c
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diff
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|
2918 Thread *cur = Thread::current(); |
|
e2509677809c
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diff
changeset
|
2919 if (CompiledIC_lock->owner() == cur || |
|
e2509677809c
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diff
changeset
|
2920 ((cur->is_VM_thread() || cur->is_ConcurrentGC_thread()) && |
|
e2509677809c
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vlivanov
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changeset
|
2921 SafepointSynchronize::is_at_safepoint())) { |
|
e2509677809c
8023037: Race between ciEnv::register_method and nmethod::make_not_entrant_or_zombie
vlivanov
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12334
diff
changeset
|
2922 CompiledIC_at(this, call_site); |
|
e2509677809c
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vlivanov
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12334
diff
changeset
|
2923 CHECK_UNHANDLED_OOPS_ONLY(Thread::current()->clear_unhandled_oops()); |
|
e2509677809c
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vlivanov
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12334
diff
changeset
|
2924 } else { |
|
e2509677809c
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vlivanov
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12334
diff
changeset
|
2925 MutexLocker ml_verify (CompiledIC_lock); |
|
e2509677809c
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vlivanov
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12334
diff
changeset
|
2926 CompiledIC_at(this, call_site); |
|
e2509677809c
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12334
diff
changeset
|
2927 } |
| 0 | 2928 } |
|
13071
e2509677809c
8023037: Race between ciEnv::register_method and nmethod::make_not_entrant_or_zombie
vlivanov
parents:
12334
diff
changeset
|
2929 |
|
e2509677809c
8023037: Race between ciEnv::register_method and nmethod::make_not_entrant_or_zombie
vlivanov
parents:
12334
diff
changeset
|
2930 PcDesc* pd = pc_desc_at(nativeCall_at(call_site)->return_address()); |
| 0 | 2931 assert(pd != NULL, "PcDesc must exist"); |
| 2932 for (ScopeDesc* sd = new ScopeDesc(this, pd->scope_decode_offset(), | |
| 9707 | 2933 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
|
2934 pd->return_oop()); |
| 0 | 2935 !sd->is_top(); sd = sd->sender()) { |
| 2936 sd->verify(); | |
| 2937 } | |
| 2938 } | |
| 2939 | |
| 2940 void nmethod::verify_scopes() { | |
| 2941 if( !method() ) return; // Runtime stubs have no scope | |
| 2942 if (method()->is_native()) return; // Ignore stub methods. | |
| 2943 // iterate through all interrupt point | |
| 2944 // and verify the debug information is valid. | |
| 2945 RelocIterator iter((nmethod*)this); | |
| 2946 while (iter.next()) { | |
| 2947 address stub = NULL; | |
| 2948 switch (iter.type()) { | |
| 2949 case relocInfo::virtual_call_type: | |
| 2950 verify_interrupt_point(iter.addr()); | |
| 2951 break; | |
| 2952 case relocInfo::opt_virtual_call_type: | |
| 2953 stub = iter.opt_virtual_call_reloc()->static_stub(); | |
| 2954 verify_interrupt_point(iter.addr()); | |
| 2955 break; | |
| 2956 case relocInfo::static_call_type: | |
| 2957 stub = iter.static_call_reloc()->static_stub(); | |
| 2958 //verify_interrupt_point(iter.addr()); | |
| 2959 break; | |
| 2960 case relocInfo::runtime_call_type: | |
| 2961 address destination = iter.reloc()->value(); | |
| 2962 // Right now there is no way to find out which entries support | |
| 2963 // an interrupt point. It would be nice if we had this | |
| 2964 // information in a table. | |
| 2965 break; | |
| 2966 } | |
| 2967 assert(stub == NULL || stub_contains(stub), "static call stub outside stub section"); | |
| 2968 } | |
| 2969 } | |
| 2970 | |
| 2971 | |
| 2972 // ----------------------------------------------------------------------------- | |
| 2973 // Non-product code | |
| 2974 #ifndef PRODUCT | |
| 2975 | |
|
989
148e5441d916
6863023: need non-perm oops in code cache for JSR 292
jrose
parents:
931
diff
changeset
|
2976 class DebugScavengeRoot: public OopClosure { |
|
148e5441d916
6863023: need non-perm oops in code cache for JSR 292
jrose
parents:
931
diff
changeset
|
2977 nmethod* _nm; |
|
148e5441d916
6863023: need non-perm oops in code cache for JSR 292
jrose
parents:
931
diff
changeset
|
2978 bool _ok; |
|
148e5441d916
6863023: need non-perm oops in code cache for JSR 292
jrose
parents:
931
diff
changeset
|
2979 public: |
|
148e5441d916
6863023: need non-perm oops in code cache for JSR 292
jrose
parents:
931
diff
changeset
|
2980 DebugScavengeRoot(nmethod* nm) : _nm(nm), _ok(true) { } |
|
148e5441d916
6863023: need non-perm oops in code cache for JSR 292
jrose
parents:
931
diff
changeset
|
2981 bool ok() { return _ok; } |
|
148e5441d916
6863023: need non-perm oops in code cache for JSR 292
jrose
parents:
931
diff
changeset
|
2982 virtual void do_oop(oop* p) { |
|
148e5441d916
6863023: need non-perm oops in code cache for JSR 292
jrose
parents:
931
diff
changeset
|
2983 if ((*p) == NULL || !(*p)->is_scavengable()) return; |
|
148e5441d916
6863023: need non-perm oops in code cache for JSR 292
jrose
parents:
931
diff
changeset
|
2984 if (_ok) { |
|
148e5441d916
6863023: need non-perm oops in code cache for JSR 292
jrose
parents:
931
diff
changeset
|
2985 _nm->print_nmethod(true); |
|
148e5441d916
6863023: need non-perm oops in code cache for JSR 292
jrose
parents:
931
diff
changeset
|
2986 _ok = false; |
|
148e5441d916
6863023: need non-perm oops in code cache for JSR 292
jrose
parents:
931
diff
changeset
|
2987 } |
|
3377
2aa9ddbb9e60
7041789: 30% perf regression with c2/arm following 7017732
jmasa
parents:
2405
diff
changeset
|
2988 tty->print_cr("*** scavengable oop "PTR_FORMAT" found at "PTR_FORMAT" (offset %d)", |
|
12316
190899198332
7195622: CheckUnhandledOops has limited usefulness now
hseigel
parents:
12175
diff
changeset
|
2989 (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
|
2990 (*p)->print(); |
|
148e5441d916
6863023: need non-perm oops in code cache for JSR 292
jrose
parents:
931
diff
changeset
|
2991 } |
|
148e5441d916
6863023: need non-perm oops in code cache for JSR 292
jrose
parents:
931
diff
changeset
|
2992 virtual void do_oop(narrowOop* p) { ShouldNotReachHere(); } |
|
148e5441d916
6863023: need non-perm oops in code cache for JSR 292
jrose
parents:
931
diff
changeset
|
2993 }; |
| 0 | 2994 |
|
989
148e5441d916
6863023: need non-perm oops in code cache for JSR 292
jrose
parents:
931
diff
changeset
|
2995 void nmethod::verify_scavenge_root_oops() { |
|
20278
2c6ef90f030a
8049421: G1 Class Unloading after completing a concurrent mark cycle
stefank
parents:
20277
diff
changeset
|
2996 if (UseG1GC) { |
|
2c6ef90f030a
8049421: G1 Class Unloading after completing a concurrent mark cycle
stefank
parents:
20277
diff
changeset
|
2997 return; |
|
2c6ef90f030a
8049421: G1 Class Unloading after completing a concurrent mark cycle
stefank
parents:
20277
diff
changeset
|
2998 } |
|
2c6ef90f030a
8049421: G1 Class Unloading after completing a concurrent mark cycle
stefank
parents:
20277
diff
changeset
|
2999 |
|
989
148e5441d916
6863023: need non-perm oops in code cache for JSR 292
jrose
parents:
931
diff
changeset
|
3000 if (!on_scavenge_root_list()) { |
|
148e5441d916
6863023: need non-perm oops in code cache for JSR 292
jrose
parents:
931
diff
changeset
|
3001 // Actually look inside, to verify the claim that it's clean. |
|
148e5441d916
6863023: need non-perm oops in code cache for JSR 292
jrose
parents:
931
diff
changeset
|
3002 DebugScavengeRoot debug_scavenge_root(this); |
|
148e5441d916
6863023: need non-perm oops in code cache for JSR 292
jrose
parents:
931
diff
changeset
|
3003 oops_do(&debug_scavenge_root); |
|
148e5441d916
6863023: need non-perm oops in code cache for JSR 292
jrose
parents:
931
diff
changeset
|
3004 if (!debug_scavenge_root.ok()) |
|
3377
2aa9ddbb9e60
7041789: 30% perf regression with c2/arm following 7017732
jmasa
parents:
2405
diff
changeset
|
3005 fatal("found an unadvertised bad scavengable oop in the code cache"); |
| 0 | 3006 } |
|
989
148e5441d916
6863023: need non-perm oops in code cache for JSR 292
jrose
parents:
931
diff
changeset
|
3007 assert(scavenge_root_not_marked(), ""); |
| 0 | 3008 } |
| 3009 | |
|
100
c7c777385a15
6667042: PrintAssembly option does not work without special plugin
jrose
parents:
30
diff
changeset
|
3010 #endif // PRODUCT |
| 0 | 3011 |
| 3012 // Printing operations | |
| 3013 | |
| 3014 void nmethod::print() const { | |
| 3015 ResourceMark rm; | |
| 3016 ttyLocker ttyl; // keep the following output all in one block | |
| 3017 | |
|
2405
3d58a4983660
7022998: JSR 292 recursive method handle calls inline themselves infinitely
twisti
parents:
2376
diff
changeset
|
3018 tty->print("Compiled method "); |
| 0 | 3019 |
| 3020 if (is_compiled_by_c1()) { | |
| 3021 tty->print("(c1) "); | |
| 3022 } else if (is_compiled_by_c2()) { | |
| 3023 tty->print("(c2) "); | |
| 1692 | 3024 } else if (is_compiled_by_shark()) { |
| 3025 tty->print("(shark) "); | |
| 9707 | 3026 } else if (is_compiled_by_graal()) { |
| 3027 tty->print("(Graal) "); | |
| 0 | 3028 } else { |
| 3029 tty->print("(nm) "); | |
| 3030 } | |
| 3031 | |
|
2405
3d58a4983660
7022998: JSR 292 recursive method handle calls inline themselves infinitely
twisti
parents:
2376
diff
changeset
|
3032 print_on(tty, NULL); |
|
3d58a4983660
7022998: JSR 292 recursive method handle calls inline themselves infinitely
twisti
parents:
2376
diff
changeset
|
3033 |
| 0 | 3034 if (WizardMode) { |
| 3035 tty->print("((nmethod*) "INTPTR_FORMAT ") ", this); | |
| 3036 tty->print(" for method " INTPTR_FORMAT , (address)method()); | |
| 3037 tty->print(" { "); | |
| 3038 if (is_in_use()) tty->print("in_use "); | |
| 3039 if (is_not_entrant()) tty->print("not_entrant "); | |
| 3040 if (is_zombie()) tty->print("zombie "); | |
| 3041 if (is_unloaded()) tty->print("unloaded "); | |
|
989
148e5441d916
6863023: need non-perm oops in code cache for JSR 292
jrose
parents:
931
diff
changeset
|
3042 if (on_scavenge_root_list()) tty->print("scavenge_root "); |
| 0 | 3043 tty->print_cr("}:"); |
| 3044 } | |
| 3045 if (size () > 0) tty->print_cr(" total in heap [" INTPTR_FORMAT "," INTPTR_FORMAT "] = %d", | |
| 3046 (address)this, | |
| 3047 (address)this + size(), | |
| 3048 size()); | |
| 3049 if (relocation_size () > 0) tty->print_cr(" relocation [" INTPTR_FORMAT "," INTPTR_FORMAT "] = %d", | |
| 3050 relocation_begin(), | |
| 3051 relocation_end(), | |
| 3052 relocation_size()); | |
|
1762
0878d7bae69f
6961697: move nmethod constants section before instruction section
twisti
parents:
1748
diff
changeset
|
3053 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
|
3054 consts_begin(), |
|
0878d7bae69f
6961697: move nmethod constants section before instruction section
twisti
parents:
1748
diff
changeset
|
3055 consts_end(), |
|
0878d7bae69f
6961697: move nmethod constants section before instruction section
twisti
parents:
1748
diff
changeset
|
3056 consts_size()); |
| 1748 | 3057 if (insts_size () > 0) tty->print_cr(" main code [" INTPTR_FORMAT "," INTPTR_FORMAT "] = %d", |
| 3058 insts_begin(), | |
| 3059 insts_end(), | |
| 3060 insts_size()); | |
| 0 | 3061 if (stub_size () > 0) tty->print_cr(" stub code [" INTPTR_FORMAT "," INTPTR_FORMAT "] = %d", |
| 3062 stub_begin(), | |
| 3063 stub_end(), | |
| 3064 stub_size()); | |
|
1563
1a5913bf5e19
6951083: oops and relocations should part of nmethod not CodeBlob
twisti
parents:
1538
diff
changeset
|
3065 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
|
3066 oops_begin(), |
|
1a5913bf5e19
6951083: oops and relocations should part of nmethod not CodeBlob
twisti
parents:
1538
diff
changeset
|
3067 oops_end(), |
|
1a5913bf5e19
6951083: oops and relocations should part of nmethod not CodeBlob
twisti
parents:
1538
diff
changeset
|
3068 oops_size()); |
|
6725
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6266
diff
changeset
|
3069 if (metadata_size () > 0) tty->print_cr(" metadata [" INTPTR_FORMAT "," INTPTR_FORMAT "] = %d", |
|
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6266
diff
changeset
|
3070 metadata_begin(), |
|
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6266
diff
changeset
|
3071 metadata_end(), |
|
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6266
diff
changeset
|
3072 metadata_size()); |
| 0 | 3073 if (scopes_data_size () > 0) tty->print_cr(" scopes data [" INTPTR_FORMAT "," INTPTR_FORMAT "] = %d", |
| 3074 scopes_data_begin(), | |
| 3075 scopes_data_end(), | |
| 3076 scopes_data_size()); | |
| 3077 if (scopes_pcs_size () > 0) tty->print_cr(" scopes pcs [" INTPTR_FORMAT "," INTPTR_FORMAT "] = %d", | |
| 3078 scopes_pcs_begin(), | |
| 3079 scopes_pcs_end(), | |
| 3080 scopes_pcs_size()); | |
| 3081 if (dependencies_size () > 0) tty->print_cr(" dependencies [" INTPTR_FORMAT "," INTPTR_FORMAT "] = %d", | |
| 3082 dependencies_begin(), | |
| 3083 dependencies_end(), | |
| 3084 dependencies_size()); | |
| 3085 if (handler_table_size() > 0) tty->print_cr(" handler table [" INTPTR_FORMAT "," INTPTR_FORMAT "] = %d", | |
| 3086 handler_table_begin(), | |
| 3087 handler_table_end(), | |
| 3088 handler_table_size()); | |
| 3089 if (nul_chk_table_size() > 0) tty->print_cr(" nul chk table [" INTPTR_FORMAT "," INTPTR_FORMAT "] = %d", | |
| 3090 nul_chk_table_begin(), | |
| 3091 nul_chk_table_end(), | |
| 3092 nul_chk_table_size()); | |
| 3093 } | |
| 3094 | |
|
100
c7c777385a15
6667042: PrintAssembly option does not work without special plugin
jrose
parents:
30
diff
changeset
|
3095 void nmethod::print_code() { |
|
c7c777385a15
6667042: PrintAssembly option does not work without special plugin
jrose
parents:
30
diff
changeset
|
3096 HandleMark hm; |
|
c7c777385a15
6667042: PrintAssembly option does not work without special plugin
jrose
parents:
30
diff
changeset
|
3097 ResourceMark m; |
|
c7c777385a15
6667042: PrintAssembly option does not work without special plugin
jrose
parents:
30
diff
changeset
|
3098 Disassembler::decode(this); |
|
c7c777385a15
6667042: PrintAssembly option does not work without special plugin
jrose
parents:
30
diff
changeset
|
3099 } |
|
c7c777385a15
6667042: PrintAssembly option does not work without special plugin
jrose
parents:
30
diff
changeset
|
3100 |
|
c7c777385a15
6667042: PrintAssembly option does not work without special plugin
jrose
parents:
30
diff
changeset
|
3101 |
|
c7c777385a15
6667042: PrintAssembly option does not work without special plugin
jrose
parents:
30
diff
changeset
|
3102 #ifndef PRODUCT |
| 0 | 3103 |
| 3104 void nmethod::print_scopes() { | |
| 3105 // Find the first pc desc for all scopes in the code and print it. | |
| 3106 ResourceMark rm; | |
| 3107 for (PcDesc* p = scopes_pcs_begin(); p < scopes_pcs_end(); p++) { | |
| 3108 if (p->scope_decode_offset() == DebugInformationRecorder::serialized_null) | |
| 3109 continue; | |
| 3110 | |
| 3111 ScopeDesc* sd = scope_desc_at(p->real_pc(this)); | |
|
19597
dcfdd60edaf1
Print full ScopeDesc with PrintDebugInfo
Tom Rodriguez <tom.rodriguez@oracle.com>
parents:
18125
diff
changeset
|
3112 while (sd != NULL) { |
|
dcfdd60edaf1
Print full ScopeDesc with PrintDebugInfo
Tom Rodriguez <tom.rodriguez@oracle.com>
parents:
18125
diff
changeset
|
3113 sd->print_on(tty, p); |
|
dcfdd60edaf1
Print full ScopeDesc with PrintDebugInfo
Tom Rodriguez <tom.rodriguez@oracle.com>
parents:
18125
diff
changeset
|
3114 sd = sd->sender(); |
|
dcfdd60edaf1
Print full ScopeDesc with PrintDebugInfo
Tom Rodriguez <tom.rodriguez@oracle.com>
parents:
18125
diff
changeset
|
3115 } |
| 0 | 3116 } |
| 3117 } | |
| 3118 | |
| 3119 void nmethod::print_dependencies() { | |
| 3120 ResourceMark rm; | |
| 3121 ttyLocker ttyl; // keep the following output all in one block | |
| 3122 tty->print_cr("Dependencies:"); | |
| 3123 for (Dependencies::DepStream deps(this); deps.next(); ) { | |
| 3124 deps.print_dependency(); | |
|
6725
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6266
diff
changeset
|
3125 Klass* ctxk = deps.context_type(); |
| 0 | 3126 if (ctxk != NULL) { |
| 6983 | 3127 if (ctxk->oop_is_instance() && ((InstanceKlass*)ctxk)->is_dependent_nmethod(this)) { |
| 3128 tty->print_cr(" [nmethod<=klass]%s", ctxk->external_name()); | |
| 0 | 3129 } |
| 3130 } | |
| 3131 deps.log_dependency(); // put it into the xml log also | |
| 3132 } | |
| 3133 } | |
| 3134 | |
| 3135 | |
| 3136 void nmethod::print_relocations() { | |
| 3137 ResourceMark m; // in case methods get printed via the debugger | |
| 3138 tty->print_cr("relocations:"); | |
| 3139 RelocIterator iter(this); | |
| 3140 iter.print(); | |
| 3141 if (UseRelocIndex) { | |
| 3142 jint* index_end = (jint*)relocation_end() - 1; | |
| 3143 jint index_size = *index_end; | |
| 3144 jint* index_start = (jint*)( (address)index_end - index_size ); | |
| 3145 tty->print_cr(" index @" INTPTR_FORMAT ": index_size=%d", index_start, index_size); | |
| 3146 if (index_size > 0) { | |
| 3147 jint* ip; | |
| 3148 for (ip = index_start; ip+2 <= index_end; ip += 2) | |
| 3149 tty->print_cr(" (%d %d) addr=" INTPTR_FORMAT " @" INTPTR_FORMAT, | |
| 3150 ip[0], | |
| 3151 ip[1], | |
| 3152 header_end()+ip[0], | |
| 3153 relocation_begin()-1+ip[1]); | |
| 3154 for (; ip < index_end; ip++) | |
| 3155 tty->print_cr(" (%d ?)", ip[0]); | |
|
10973
ef57c43512d6
8014431: cleanup warnings indicated by the -Wunused-value compiler option on linux
ccheung
parents:
10390
diff
changeset
|
3156 tty->print_cr(" @" INTPTR_FORMAT ": index_size=%d", ip, *ip); |
|
ef57c43512d6
8014431: cleanup warnings indicated by the -Wunused-value compiler option on linux
ccheung
parents:
10390
diff
changeset
|
3157 ip++; |
| 0 | 3158 tty->print_cr("reloc_end @" INTPTR_FORMAT ":", ip); |
| 3159 } | |
| 3160 } | |
| 3161 } | |
| 3162 | |
| 3163 | |
| 3164 void nmethod::print_pcs() { | |
| 3165 ResourceMark m; // in case methods get printed via debugger | |
| 3166 tty->print_cr("pc-bytecode offsets:"); | |
| 3167 for (PcDesc* p = scopes_pcs_begin(); p < scopes_pcs_end(); p++) { | |
| 3168 p->print(this); | |
| 3169 } | |
| 3170 } | |
| 3171 | |
|
100
c7c777385a15
6667042: PrintAssembly option does not work without special plugin
jrose
parents:
30
diff
changeset
|
3172 #endif // PRODUCT |
| 0 | 3173 |
| 3174 const char* nmethod::reloc_string_for(u_char* begin, u_char* end) { | |
| 3175 RelocIterator iter(this, begin, end); | |
| 3176 bool have_one = false; | |
| 3177 while (iter.next()) { | |
| 3178 have_one = true; | |
| 3179 switch (iter.type()) { | |
| 3180 case relocInfo::none: return "no_reloc"; | |
| 3181 case relocInfo::oop_type: { | |
| 3182 stringStream st; | |
| 3183 oop_Relocation* r = iter.oop_reloc(); | |
| 3184 oop obj = r->oop_value(); | |
| 3185 st.print("oop("); | |
| 3186 if (obj == NULL) st.print("NULL"); | |
| 3187 else obj->print_value_on(&st); | |
| 3188 st.print(")"); | |
| 3189 return st.as_string(); | |
| 3190 } | |
|
6725
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6266
diff
changeset
|
3191 case relocInfo::metadata_type: { |
|
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6266
diff
changeset
|
3192 stringStream st; |
|
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6266
diff
changeset
|
3193 metadata_Relocation* r = iter.metadata_reloc(); |
|
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6266
diff
changeset
|
3194 Metadata* obj = r->metadata_value(); |
|
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6266
diff
changeset
|
3195 st.print("metadata("); |
|
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6266
diff
changeset
|
3196 if (obj == NULL) st.print("NULL"); |
|
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6266
diff
changeset
|
3197 else obj->print_value_on(&st); |
|
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6266
diff
changeset
|
3198 st.print(")"); |
|
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6266
diff
changeset
|
3199 return st.as_string(); |
|
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6266
diff
changeset
|
3200 } |
| 0 | 3201 case relocInfo::virtual_call_type: return "virtual_call"; |
| 3202 case relocInfo::opt_virtual_call_type: return "optimized virtual_call"; | |
| 3203 case relocInfo::static_call_type: return "static_call"; | |
| 3204 case relocInfo::static_stub_type: return "static_stub"; | |
| 3205 case relocInfo::runtime_call_type: return "runtime_call"; | |
| 3206 case relocInfo::external_word_type: return "external_word"; | |
| 3207 case relocInfo::internal_word_type: return "internal_word"; | |
| 3208 case relocInfo::section_word_type: return "section_word"; | |
| 3209 case relocInfo::poll_type: return "poll"; | |
| 3210 case relocInfo::poll_return_type: return "poll_return"; | |
| 3211 case relocInfo::type_mask: return "type_bit_mask"; | |
| 3212 } | |
| 3213 } | |
| 3214 return have_one ? "other" : NULL; | |
| 3215 } | |
| 3216 | |
| 3217 // Return a the last scope in (begin..end] | |
| 3218 ScopeDesc* nmethod::scope_desc_in(address begin, address end) { | |
| 3219 PcDesc* p = pc_desc_near(begin+1); | |
| 3220 if (p != NULL && p->real_pc(this) <= end) { | |
| 3221 return new ScopeDesc(this, p->scope_decode_offset(), | |
| 9707 | 3222 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
|
3223 p->return_oop()); |
| 0 | 3224 } |
| 3225 return NULL; | |
| 3226 } | |
| 3227 | |
|
6796
b31471cdc53e
7200163: add CodeComments functionality to assember stubs
kvn
parents:
6792
diff
changeset
|
3228 void nmethod::print_nmethod_labels(outputStream* stream, address block_begin) const { |
|
1155
4e6abf09f540
6912062: disassembler plugin needs to produce symbolic information in product mode
jrose
parents:
1141
diff
changeset
|
3229 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
|
3230 if (block_begin == verified_entry_point()) stream->print_cr("[Verified Entry Point]"); |
| 9707 | 3231 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
|
3232 if (block_begin == stub_begin()) stream->print_cr("[Stub Code]"); |
| 9707 | 3233 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
|
3234 |
|
4a665be40fd3
6975855: don't emit deopt MH handler in C1 if not required
twisti
parents:
1644
diff
changeset
|
3235 if (has_method_handle_invokes()) |
|
4a665be40fd3
6975855: don't emit deopt MH handler in C1 if not required
twisti
parents:
1644
diff
changeset
|
3236 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
|
3237 |
|
1155
4e6abf09f540
6912062: disassembler plugin needs to produce symbolic information in product mode
jrose
parents:
1141
diff
changeset
|
3238 if (block_begin == consts_begin()) stream->print_cr("[Constants]"); |
|
1691
4a665be40fd3
6975855: don't emit deopt MH handler in C1 if not required
twisti
parents:
1644
diff
changeset
|
3239 |
|
1155
4e6abf09f540
6912062: disassembler plugin needs to produce symbolic information in product mode
jrose
parents:
1141
diff
changeset
|
3240 if (block_begin == entry_point()) { |
|
4e6abf09f540
6912062: disassembler plugin needs to produce symbolic information in product mode
jrose
parents:
1141
diff
changeset
|
3241 methodHandle m = method(); |
|
4e6abf09f540
6912062: disassembler plugin needs to produce symbolic information in product mode
jrose
parents:
1141
diff
changeset
|
3242 if (m.not_null()) { |
|
4e6abf09f540
6912062: disassembler plugin needs to produce symbolic information in product mode
jrose
parents:
1141
diff
changeset
|
3243 stream->print(" # "); |
|
4e6abf09f540
6912062: disassembler plugin needs to produce symbolic information in product mode
jrose
parents:
1141
diff
changeset
|
3244 m->print_value_on(stream); |
|
4e6abf09f540
6912062: disassembler plugin needs to produce symbolic information in product mode
jrose
parents:
1141
diff
changeset
|
3245 stream->cr(); |
|
4e6abf09f540
6912062: disassembler plugin needs to produce symbolic information in product mode
jrose
parents:
1141
diff
changeset
|
3246 } |
|
4e6abf09f540
6912062: disassembler plugin needs to produce symbolic information in product mode
jrose
parents:
1141
diff
changeset
|
3247 if (m.not_null() && !is_osr_method()) { |
|
4e6abf09f540
6912062: disassembler plugin needs to produce symbolic information in product mode
jrose
parents:
1141
diff
changeset
|
3248 ResourceMark rm; |
|
4e6abf09f540
6912062: disassembler plugin needs to produce symbolic information in product mode
jrose
parents:
1141
diff
changeset
|
3249 int sizeargs = m->size_of_parameters(); |
|
4e6abf09f540
6912062: disassembler plugin needs to produce symbolic information in product mode
jrose
parents:
1141
diff
changeset
|
3250 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
|
3251 VMRegPair* regs = NEW_RESOURCE_ARRAY(VMRegPair, sizeargs); |
|
4e6abf09f540
6912062: disassembler plugin needs to produce symbolic information in product mode
jrose
parents:
1141
diff
changeset
|
3252 { |
|
4e6abf09f540
6912062: disassembler plugin needs to produce symbolic information in product mode
jrose
parents:
1141
diff
changeset
|
3253 int sig_index = 0; |
|
4e6abf09f540
6912062: disassembler plugin needs to produce symbolic information in product mode
jrose
parents:
1141
diff
changeset
|
3254 if (!m->is_static()) |
|
4e6abf09f540
6912062: disassembler plugin needs to produce symbolic information in product mode
jrose
parents:
1141
diff
changeset
|
3255 sig_bt[sig_index++] = T_OBJECT; // 'this' |
|
4e6abf09f540
6912062: disassembler plugin needs to produce symbolic information in product mode
jrose
parents:
1141
diff
changeset
|
3256 for (SignatureStream ss(m->signature()); !ss.at_return_type(); ss.next()) { |
|
4e6abf09f540
6912062: disassembler plugin needs to produce symbolic information in product mode
jrose
parents:
1141
diff
changeset
|
3257 BasicType t = ss.type(); |
|
4e6abf09f540
6912062: disassembler plugin needs to produce symbolic information in product mode
jrose
parents:
1141
diff
changeset
|
3258 sig_bt[sig_index++] = t; |
|
4e6abf09f540
6912062: disassembler plugin needs to produce symbolic information in product mode
jrose
parents:
1141
diff
changeset
|
3259 if (type2size[t] == 2) { |
|
4e6abf09f540
6912062: disassembler plugin needs to produce symbolic information in product mode
jrose
parents:
1141
diff
changeset
|
3260 sig_bt[sig_index++] = T_VOID; |
|
4e6abf09f540
6912062: disassembler plugin needs to produce symbolic information in product mode
jrose
parents:
1141
diff
changeset
|
3261 } else { |
|
4e6abf09f540
6912062: disassembler plugin needs to produce symbolic information in product mode
jrose
parents:
1141
diff
changeset
|
3262 assert(type2size[t] == 1, "size is 1 or 2"); |
|
4e6abf09f540
6912062: disassembler plugin needs to produce symbolic information in product mode
jrose
parents:
1141
diff
changeset
|
3263 } |
|
4e6abf09f540
6912062: disassembler plugin needs to produce symbolic information in product mode
jrose
parents:
1141
diff
changeset
|
3264 } |
|
4e6abf09f540
6912062: disassembler plugin needs to produce symbolic information in product mode
jrose
parents:
1141
diff
changeset
|
3265 assert(sig_index == sizeargs, ""); |
|
4e6abf09f540
6912062: disassembler plugin needs to produce symbolic information in product mode
jrose
parents:
1141
diff
changeset
|
3266 } |
|
4e6abf09f540
6912062: disassembler plugin needs to produce symbolic information in product mode
jrose
parents:
1141
diff
changeset
|
3267 const char* spname = "sp"; // make arch-specific? |
|
4e6abf09f540
6912062: disassembler plugin needs to produce symbolic information in product mode
jrose
parents:
1141
diff
changeset
|
3268 intptr_t out_preserve = SharedRuntime::java_calling_convention(sig_bt, regs, sizeargs, false); |
|
4e6abf09f540
6912062: disassembler plugin needs to produce symbolic information in product mode
jrose
parents:
1141
diff
changeset
|
3269 int stack_slot_offset = this->frame_size() * wordSize; |
|
4e6abf09f540
6912062: disassembler plugin needs to produce symbolic information in product mode
jrose
parents:
1141
diff
changeset
|
3270 int tab1 = 14, tab2 = 24; |
|
4e6abf09f540
6912062: disassembler plugin needs to produce symbolic information in product mode
jrose
parents:
1141
diff
changeset
|
3271 int sig_index = 0; |
|
4e6abf09f540
6912062: disassembler plugin needs to produce symbolic information in product mode
jrose
parents:
1141
diff
changeset
|
3272 int arg_index = (m->is_static() ? 0 : -1); |
|
4e6abf09f540
6912062: disassembler plugin needs to produce symbolic information in product mode
jrose
parents:
1141
diff
changeset
|
3273 bool did_old_sp = false; |
|
4e6abf09f540
6912062: disassembler plugin needs to produce symbolic information in product mode
jrose
parents:
1141
diff
changeset
|
3274 for (SignatureStream ss(m->signature()); !ss.at_return_type(); ) { |
|
4e6abf09f540
6912062: disassembler plugin needs to produce symbolic information in product mode
jrose
parents:
1141
diff
changeset
|
3275 bool at_this = (arg_index == -1); |
|
4e6abf09f540
6912062: disassembler plugin needs to produce symbolic information in product mode
jrose
parents:
1141
diff
changeset
|
3276 bool at_old_sp = false; |
|
4e6abf09f540
6912062: disassembler plugin needs to produce symbolic information in product mode
jrose
parents:
1141
diff
changeset
|
3277 BasicType t = (at_this ? T_OBJECT : ss.type()); |
|
4e6abf09f540
6912062: disassembler plugin needs to produce symbolic information in product mode
jrose
parents:
1141
diff
changeset
|
3278 assert(t == sig_bt[sig_index], "sigs in sync"); |
|
4e6abf09f540
6912062: disassembler plugin needs to produce symbolic information in product mode
jrose
parents:
1141
diff
changeset
|
3279 if (at_this) |
|
4e6abf09f540
6912062: disassembler plugin needs to produce symbolic information in product mode
jrose
parents:
1141
diff
changeset
|
3280 stream->print(" # this: "); |
|
4e6abf09f540
6912062: disassembler plugin needs to produce symbolic information in product mode
jrose
parents:
1141
diff
changeset
|
3281 else |
|
4e6abf09f540
6912062: disassembler plugin needs to produce symbolic information in product mode
jrose
parents:
1141
diff
changeset
|
3282 stream->print(" # parm%d: ", arg_index); |
|
4e6abf09f540
6912062: disassembler plugin needs to produce symbolic information in product mode
jrose
parents:
1141
diff
changeset
|
3283 stream->move_to(tab1); |
|
4e6abf09f540
6912062: disassembler plugin needs to produce symbolic information in product mode
jrose
parents:
1141
diff
changeset
|
3284 VMReg fst = regs[sig_index].first(); |
|
4e6abf09f540
6912062: disassembler plugin needs to produce symbolic information in product mode
jrose
parents:
1141
diff
changeset
|
3285 VMReg snd = regs[sig_index].second(); |
|
4e6abf09f540
6912062: disassembler plugin needs to produce symbolic information in product mode
jrose
parents:
1141
diff
changeset
|
3286 if (fst->is_reg()) { |
|
4e6abf09f540
6912062: disassembler plugin needs to produce symbolic information in product mode
jrose
parents:
1141
diff
changeset
|
3287 stream->print("%s", fst->name()); |
|
4e6abf09f540
6912062: disassembler plugin needs to produce symbolic information in product mode
jrose
parents:
1141
diff
changeset
|
3288 if (snd->is_valid()) { |
|
4e6abf09f540
6912062: disassembler plugin needs to produce symbolic information in product mode
jrose
parents:
1141
diff
changeset
|
3289 stream->print(":%s", snd->name()); |
|
4e6abf09f540
6912062: disassembler plugin needs to produce symbolic information in product mode
jrose
parents:
1141
diff
changeset
|
3290 } |
|
4e6abf09f540
6912062: disassembler plugin needs to produce symbolic information in product mode
jrose
parents:
1141
diff
changeset
|
3291 } else if (fst->is_stack()) { |
|
4e6abf09f540
6912062: disassembler plugin needs to produce symbolic information in product mode
jrose
parents:
1141
diff
changeset
|
3292 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
|
3293 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
|
3294 stream->print("[%s+0x%x]", spname, offset); |
|
4e6abf09f540
6912062: disassembler plugin needs to produce symbolic information in product mode
jrose
parents:
1141
diff
changeset
|
3295 } else { |
|
4e6abf09f540
6912062: disassembler plugin needs to produce symbolic information in product mode
jrose
parents:
1141
diff
changeset
|
3296 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
|
3297 } |
|
4e6abf09f540
6912062: disassembler plugin needs to produce symbolic information in product mode
jrose
parents:
1141
diff
changeset
|
3298 stream->print(" "); |
|
4e6abf09f540
6912062: disassembler plugin needs to produce symbolic information in product mode
jrose
parents:
1141
diff
changeset
|
3299 stream->move_to(tab2); |
|
4e6abf09f540
6912062: disassembler plugin needs to produce symbolic information in product mode
jrose
parents:
1141
diff
changeset
|
3300 stream->print("= "); |
|
4e6abf09f540
6912062: disassembler plugin needs to produce symbolic information in product mode
jrose
parents:
1141
diff
changeset
|
3301 if (at_this) { |
|
4e6abf09f540
6912062: disassembler plugin needs to produce symbolic information in product mode
jrose
parents:
1141
diff
changeset
|
3302 m->method_holder()->print_value_on(stream); |
|
4e6abf09f540
6912062: disassembler plugin needs to produce symbolic information in product mode
jrose
parents:
1141
diff
changeset
|
3303 } else { |
|
4e6abf09f540
6912062: disassembler plugin needs to produce symbolic information in product mode
jrose
parents:
1141
diff
changeset
|
3304 bool did_name = false; |
|
4e6abf09f540
6912062: disassembler plugin needs to produce symbolic information in product mode
jrose
parents:
1141
diff
changeset
|
3305 if (!at_this && ss.is_object()) { |
|
2177
3582bf76420e
6990754: Use native memory and reference counting to implement SymbolTable
coleenp
parents:
2142
diff
changeset
|
3306 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
|
3307 if (name != NULL) { |
|
4e6abf09f540
6912062: disassembler plugin needs to produce symbolic information in product mode
jrose
parents:
1141
diff
changeset
|
3308 name->print_value_on(stream); |
|
4e6abf09f540
6912062: disassembler plugin needs to produce symbolic information in product mode
jrose
parents:
1141
diff
changeset
|
3309 did_name = true; |
|
4e6abf09f540
6912062: disassembler plugin needs to produce symbolic information in product mode
jrose
parents:
1141
diff
changeset
|
3310 } |
|
4e6abf09f540
6912062: disassembler plugin needs to produce symbolic information in product mode
jrose
parents:
1141
diff
changeset
|
3311 } |
|
4e6abf09f540
6912062: disassembler plugin needs to produce symbolic information in product mode
jrose
parents:
1141
diff
changeset
|
3312 if (!did_name) |
|
4e6abf09f540
6912062: disassembler plugin needs to produce symbolic information in product mode
jrose
parents:
1141
diff
changeset
|
3313 stream->print("%s", type2name(t)); |
|
4e6abf09f540
6912062: disassembler plugin needs to produce symbolic information in product mode
jrose
parents:
1141
diff
changeset
|
3314 } |
|
4e6abf09f540
6912062: disassembler plugin needs to produce symbolic information in product mode
jrose
parents:
1141
diff
changeset
|
3315 if (at_old_sp) { |
|
4e6abf09f540
6912062: disassembler plugin needs to produce symbolic information in product mode
jrose
parents:
1141
diff
changeset
|
3316 stream->print(" (%s of caller)", spname); |
|
4e6abf09f540
6912062: disassembler plugin needs to produce symbolic information in product mode
jrose
parents:
1141
diff
changeset
|
3317 did_old_sp = true; |
|
4e6abf09f540
6912062: disassembler plugin needs to produce symbolic information in product mode
jrose
parents:
1141
diff
changeset
|
3318 } |
|
4e6abf09f540
6912062: disassembler plugin needs to produce symbolic information in product mode
jrose
parents:
1141
diff
changeset
|
3319 stream->cr(); |
|
4e6abf09f540
6912062: disassembler plugin needs to produce symbolic information in product mode
jrose
parents:
1141
diff
changeset
|
3320 sig_index += type2size[t]; |
|
4e6abf09f540
6912062: disassembler plugin needs to produce symbolic information in product mode
jrose
parents:
1141
diff
changeset
|
3321 arg_index += 1; |
|
4e6abf09f540
6912062: disassembler plugin needs to produce symbolic information in product mode
jrose
parents:
1141
diff
changeset
|
3322 if (!at_this) ss.next(); |
|
4e6abf09f540
6912062: disassembler plugin needs to produce symbolic information in product mode
jrose
parents:
1141
diff
changeset
|
3323 } |
|
4e6abf09f540
6912062: disassembler plugin needs to produce symbolic information in product mode
jrose
parents:
1141
diff
changeset
|
3324 if (!did_old_sp) { |
|
4e6abf09f540
6912062: disassembler plugin needs to produce symbolic information in product mode
jrose
parents:
1141
diff
changeset
|
3325 stream->print(" # "); |
|
4e6abf09f540
6912062: disassembler plugin needs to produce symbolic information in product mode
jrose
parents:
1141
diff
changeset
|
3326 stream->move_to(tab1); |
|
4e6abf09f540
6912062: disassembler plugin needs to produce symbolic information in product mode
jrose
parents:
1141
diff
changeset
|
3327 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
|
3328 stream->print(" (%s of caller)", spname); |
|
4e6abf09f540
6912062: disassembler plugin needs to produce symbolic information in product mode
jrose
parents:
1141
diff
changeset
|
3329 stream->cr(); |
|
4e6abf09f540
6912062: disassembler plugin needs to produce symbolic information in product mode
jrose
parents:
1141
diff
changeset
|
3330 } |
|
4e6abf09f540
6912062: disassembler plugin needs to produce symbolic information in product mode
jrose
parents:
1141
diff
changeset
|
3331 } |
|
4e6abf09f540
6912062: disassembler plugin needs to produce symbolic information in product mode
jrose
parents:
1141
diff
changeset
|
3332 } |
|
4e6abf09f540
6912062: disassembler plugin needs to produce symbolic information in product mode
jrose
parents:
1141
diff
changeset
|
3333 } |
|
4e6abf09f540
6912062: disassembler plugin needs to produce symbolic information in product mode
jrose
parents:
1141
diff
changeset
|
3334 |
| 0 | 3335 void nmethod::print_code_comment_on(outputStream* st, int column, u_char* begin, u_char* end) { |
| 3336 // First, find an oopmap in (begin, end]. | |
| 3337 // We use the odd half-closed interval so that oop maps and scope descs | |
| 3338 // which are tied to the byte after a call are printed with the call itself. | |
| 1748 | 3339 address base = code_begin(); |
| 0 | 3340 OopMapSet* oms = oop_maps(); |
| 3341 if (oms != NULL) { | |
| 3342 for (int i = 0, imax = oms->size(); i < imax; i++) { | |
| 3343 OopMap* om = oms->at(i); | |
| 3344 address pc = base + om->offset(); | |
| 3345 if (pc > begin) { | |
| 3346 if (pc <= end) { | |
|
100
c7c777385a15
6667042: PrintAssembly option does not work without special plugin
jrose
parents:
30
diff
changeset
|
3347 st->move_to(column); |
|
c7c777385a15
6667042: PrintAssembly option does not work without special plugin
jrose
parents:
30
diff
changeset
|
3348 st->print("; "); |
|
c7c777385a15
6667042: PrintAssembly option does not work without special plugin
jrose
parents:
30
diff
changeset
|
3349 om->print_on(st); |
| 0 | 3350 } |
| 3351 break; | |
| 3352 } | |
| 3353 } | |
| 3354 } | |
|
100
c7c777385a15
6667042: PrintAssembly option does not work without special plugin
jrose
parents:
30
diff
changeset
|
3355 |
|
c7c777385a15
6667042: PrintAssembly option does not work without special plugin
jrose
parents:
30
diff
changeset
|
3356 // Print any debug info present at this pc. |
| 0 | 3357 ScopeDesc* sd = scope_desc_in(begin, end); |
| 3358 if (sd != NULL) { | |
|
100
c7c777385a15
6667042: PrintAssembly option does not work without special plugin
jrose
parents:
30
diff
changeset
|
3359 st->move_to(column); |
| 0 | 3360 if (sd->bci() == SynchronizationEntryBCI) { |
| 3361 st->print(";*synchronization entry"); | |
| 3362 } else { | |
|
6725
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6266
diff
changeset
|
3363 if (sd->method() == NULL) { |
|
100
c7c777385a15
6667042: PrintAssembly option does not work without special plugin
jrose
parents:
30
diff
changeset
|
3364 st->print("method is NULL"); |
| 0 | 3365 } else if (sd->method()->is_native()) { |
|
100
c7c777385a15
6667042: PrintAssembly option does not work without special plugin
jrose
parents:
30
diff
changeset
|
3366 st->print("method is native"); |
| 0 | 3367 } else { |
| 2142 | 3368 Bytecodes::Code bc = sd->method()->java_code_at(sd->bci()); |
| 0 | 3369 st->print(";*%s", Bytecodes::name(bc)); |
| 3370 switch (bc) { | |
| 3371 case Bytecodes::_invokevirtual: | |
| 3372 case Bytecodes::_invokespecial: | |
| 3373 case Bytecodes::_invokestatic: | |
| 3374 case Bytecodes::_invokeinterface: | |
| 3375 { | |
| 2142 | 3376 Bytecode_invoke invoke(sd->method(), sd->bci()); |
| 0 | 3377 st->print(" "); |
| 2142 | 3378 if (invoke.name() != NULL) |
| 3379 invoke.name()->print_symbol_on(st); | |
| 0 | 3380 else |
| 3381 st->print("<UNKNOWN>"); | |
| 3382 break; | |
| 3383 } | |
| 3384 case Bytecodes::_getfield: | |
| 3385 case Bytecodes::_putfield: | |
| 3386 case Bytecodes::_getstatic: | |
| 3387 case Bytecodes::_putstatic: | |
| 3388 { | |
| 2142 | 3389 Bytecode_field field(sd->method(), sd->bci()); |
| 0 | 3390 st->print(" "); |
| 2142 | 3391 if (field.name() != NULL) |
| 3392 field.name()->print_symbol_on(st); | |
| 0 | 3393 else |
| 3394 st->print("<UNKNOWN>"); | |
| 3395 } | |
| 3396 } | |
| 3397 } | |
| 3398 } | |
|
100
c7c777385a15
6667042: PrintAssembly option does not work without special plugin
jrose
parents:
30
diff
changeset
|
3399 |
| 0 | 3400 // Print all scopes |
| 3401 for (;sd != NULL; sd = sd->sender()) { | |
|
100
c7c777385a15
6667042: PrintAssembly option does not work without special plugin
jrose
parents:
30
diff
changeset
|
3402 st->move_to(column); |
| 0 | 3403 st->print("; -"); |
|
6725
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6266
diff
changeset
|
3404 if (sd->method() == NULL) { |
|
100
c7c777385a15
6667042: PrintAssembly option does not work without special plugin
jrose
parents:
30
diff
changeset
|
3405 st->print("method is NULL"); |
| 0 | 3406 } else { |
| 3407 sd->method()->print_short_name(st); | |
| 3408 } | |
| 3409 int lineno = sd->method()->line_number_from_bci(sd->bci()); | |
| 3410 if (lineno != -1) { | |
| 3411 st->print("@%d (line %d)", sd->bci(), lineno); | |
| 3412 } else { | |
| 3413 st->print("@%d", sd->bci()); | |
| 3414 } | |
| 3415 st->cr(); | |
| 3416 } | |
| 3417 } | |
| 3418 | |
| 3419 // Print relocation information | |
| 3420 const char* str = reloc_string_for(begin, end); | |
| 3421 if (str != NULL) { | |
| 3422 if (sd != NULL) st->cr(); | |
|
100
c7c777385a15
6667042: PrintAssembly option does not work without special plugin
jrose
parents:
30
diff
changeset
|
3423 st->move_to(column); |
| 0 | 3424 st->print("; {%s}", str); |
| 3425 } | |
| 1748 | 3426 int cont_offset = ImplicitExceptionTable(this).at(begin - code_begin()); |
| 0 | 3427 if (cont_offset != 0) { |
|
100
c7c777385a15
6667042: PrintAssembly option does not work without special plugin
jrose
parents:
30
diff
changeset
|
3428 st->move_to(column); |
| 1748 | 3429 st->print("; implicit exception: dispatches to " INTPTR_FORMAT, code_begin() + cont_offset); |
| 0 | 3430 } |
| 3431 | |
| 3432 } | |
| 3433 | |
|
100
c7c777385a15
6667042: PrintAssembly option does not work without special plugin
jrose
parents:
30
diff
changeset
|
3434 #ifndef PRODUCT |
|
c7c777385a15
6667042: PrintAssembly option does not work without special plugin
jrose
parents:
30
diff
changeset
|
3435 |
| 0 | 3436 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
|
3437 st->print("nmethod"); |
|
3d58a4983660
7022998: JSR 292 recursive method handle calls inline themselves infinitely
twisti
parents:
2376
diff
changeset
|
3438 print_on(st, NULL); |
| 0 | 3439 } |
| 3440 | |
| 3441 void nmethod::print_calls(outputStream* st) { | |
| 3442 RelocIterator iter(this); | |
| 3443 while (iter.next()) { | |
| 3444 switch (iter.type()) { | |
| 3445 case relocInfo::virtual_call_type: | |
| 3446 case relocInfo::opt_virtual_call_type: { | |
| 3447 VerifyMutexLocker mc(CompiledIC_lock); | |
|
20277
882004b9e7e1
8047362: Add a version of CompiledIC_at that doesn't create a new RelocIterator
stefank
parents:
20269
diff
changeset
|
3448 CompiledIC_at(&iter)->print(); |
| 0 | 3449 break; |
| 3450 } | |
| 3451 case relocInfo::static_call_type: | |
| 3452 st->print_cr("Static call at " INTPTR_FORMAT, iter.reloc()->addr()); | |
| 3453 compiledStaticCall_at(iter.reloc())->print(); | |
| 3454 break; | |
| 3455 } | |
| 3456 } | |
| 3457 } | |
| 3458 | |
| 3459 void nmethod::print_handler_table() { | |
| 3460 ExceptionHandlerTable(this).print(); | |
| 3461 } | |
| 3462 | |
| 3463 void nmethod::print_nul_chk_table() { | |
| 1748 | 3464 ImplicitExceptionTable(this).print(code_begin()); |
| 0 | 3465 } |
|
14733
b10e42998d01
nmethod: fix -XX:+PrintNMethodStatistics
Bernhard Urban <bernhard.urban@jku.at>
parents:
14726
diff
changeset
|
3466 #endif // PRODUCT |
| 0 | 3467 |
| 3468 void nmethod::print_statistics() { | |
| 3469 ttyLocker ttyl; | |
| 3470 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
|
3471 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
|
3472 #ifdef COMPILER1 |
|
7fedc59e2cdc
Split code cache stats for the different compilers
Gilles Duboscq <duboscq@ssw.jku.at>
parents:
12414
diff
changeset
|
3473 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
|
3474 #endif |
|
7fedc59e2cdc
Split code cache stats for the different compilers
Gilles Duboscq <duboscq@ssw.jku.at>
parents:
12414
diff
changeset
|
3475 #ifdef COMPILER2 |
|
7fedc59e2cdc
Split code cache stats for the different compilers
Gilles Duboscq <duboscq@ssw.jku.at>
parents:
12414
diff
changeset
|
3476 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
|
3477 #endif |
|
7fedc59e2cdc
Split code cache stats for the different compilers
Gilles Duboscq <duboscq@ssw.jku.at>
parents:
12414
diff
changeset
|
3478 #ifdef GRAAL |
|
7fedc59e2cdc
Split code cache stats for the different compilers
Gilles Duboscq <duboscq@ssw.jku.at>
parents:
12414
diff
changeset
|
3479 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
|
3480 #endif |
|
15434
7461c3bf278a
Improve PrintNMethodStatistics output: add Shark compiler and metadata size. Properly record nmethods for native wrapper.
Gilles Duboscq <duboscq@ssw.jku.at>
parents:
15164
diff
changeset
|
3481 #ifdef SHARK |
|
7461c3bf278a
Improve PrintNMethodStatistics output: add Shark compiler and metadata size. Properly record nmethods for native wrapper.
Gilles Duboscq <duboscq@ssw.jku.at>
parents:
15164
diff
changeset
|
3482 shark_java_nmethod_stats.print_nmethod_stats("Shark"); |
|
7461c3bf278a
Improve PrintNMethodStatistics output: add Shark compiler and metadata size. Properly record nmethods for native wrapper.
Gilles Duboscq <duboscq@ssw.jku.at>
parents:
15164
diff
changeset
|
3483 #endif |
|
12758
ca33948fb804
nmethod.cpp: s/unknwon/unknown/
Gilles Duboscq <duboscq@ssw.jku.at>
parents:
12704
diff
changeset
|
3484 unknown_java_nmethod_stats.print_nmethod_stats("Unknown"); |
| 0 | 3485 DebugInformationRecorder::print_statistics(); |
|
15434
7461c3bf278a
Improve PrintNMethodStatistics output: add Shark compiler and metadata size. Properly record nmethods for native wrapper.
Gilles Duboscq <duboscq@ssw.jku.at>
parents:
15164
diff
changeset
|
3486 #ifndef PRODUCT |
|
12675
7fedc59e2cdc
Split code cache stats for the different compilers
Gilles Duboscq <duboscq@ssw.jku.at>
parents:
12414
diff
changeset
|
3487 pc_nmethod_stats.print_pc_stats(); |
|
15434
7461c3bf278a
Improve PrintNMethodStatistics output: add Shark compiler and metadata size. Properly record nmethods for native wrapper.
Gilles Duboscq <duboscq@ssw.jku.at>
parents:
15164
diff
changeset
|
3488 #endif |
| 0 | 3489 Dependencies::print_statistics(); |
| 3490 if (xtty != NULL) xtty->tail("statistics"); | |
| 3491 } |