Mercurial > hg > graal-compiler
annotate src/share/vm/code/nmethod.cpp @ 6266:1d7922586cf6
7023639: JSR 292 method handle invocation needs a fast path for compiled code
6984705: JSR 292 method handle creation should not go through JNI
Summary: remove assembly code for JDK 7 chained method handles
Reviewed-by: jrose, twisti, kvn, mhaupt
Contributed-by: John Rose <john.r.rose@oracle.com>, Christian Thalinger <christian.thalinger@oracle.com>, Michael Haupt <michael.haupt@oracle.com>
| author | twisti |
|---|---|
| date | Tue, 24 Jul 2012 10:51:00 -0700 |
| parents | 0382d2b469b2 |
| children | 957c266d8bc5 da91efe96a93 |
| rev | line source |
|---|---|
| 0 | 1 /* |
|
4872
aa3d708d67c4
7141200: log some interesting information in ring buffers for crashes
never
parents:
4006
diff
changeset
|
2 * Copyright (c) 1997, 2012, Oracle and/or its affiliates. All rights reserved. |
| 0 | 3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. |
| 4 * | |
| 5 * This code is free software; you can redistribute it and/or modify it | |
| 6 * under the terms of the GNU General Public License version 2 only, as | |
| 7 * published by the Free Software Foundation. | |
| 8 * | |
| 9 * This code is distributed in the hope that it will be useful, but WITHOUT | |
| 10 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or | |
| 11 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License | |
| 12 * version 2 for more details (a copy is included in the LICENSE file that | |
| 13 * accompanied this code). | |
| 14 * | |
| 15 * You should have received a copy of the GNU General Public License version | |
| 16 * 2 along with this work; if not, write to the Free Software Foundation, | |
| 17 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. | |
| 18 * | |
|
1552
c18cbe5936b8
6941466: Oracle rebranding changes for Hotspot repositories
trims
parents:
1538
diff
changeset
|
19 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA |
|
c18cbe5936b8
6941466: Oracle rebranding changes for Hotspot repositories
trims
parents:
1538
diff
changeset
|
20 * or visit www.oracle.com if you need additional information or have any |
|
c18cbe5936b8
6941466: Oracle rebranding changes for Hotspot repositories
trims
parents:
1538
diff
changeset
|
21 * questions. |
| 0 | 22 * |
| 23 */ | |
| 24 | |
| 1972 | 25 #include "precompiled.hpp" |
| 26 #include "code/codeCache.hpp" | |
| 27 #include "code/compiledIC.hpp" | |
|
3852
fdb992d83a87
7071653: JSR 292: call site change notification should be pushed not pulled
twisti
parents:
3784
diff
changeset
|
28 #include "code/dependencies.hpp" |
| 1972 | 29 #include "code/nmethod.hpp" |
| 30 #include "code/scopeDesc.hpp" | |
| 31 #include "compiler/abstractCompiler.hpp" | |
|
2405
3d58a4983660
7022998: JSR 292 recursive method handle calls inline themselves infinitely
twisti
parents:
2376
diff
changeset
|
32 #include "compiler/compileBroker.hpp" |
| 1972 | 33 #include "compiler/compileLog.hpp" |
| 34 #include "compiler/compilerOracle.hpp" | |
| 35 #include "compiler/disassembler.hpp" | |
| 36 #include "interpreter/bytecode.hpp" | |
| 37 #include "oops/methodDataOop.hpp" | |
| 38 #include "prims/jvmtiRedefineClassesTrace.hpp" | |
|
2195
bf8517f4e4d0
6766644: Redefinition of compiled method fails with assertion "Can not load classes with the Compiler thread"
kamg
parents:
2177
diff
changeset
|
39 #include "prims/jvmtiImpl.hpp" |
| 1972 | 40 #include "runtime/sharedRuntime.hpp" |
| 41 #include "runtime/sweeper.hpp" | |
| 42 #include "utilities/dtrace.hpp" | |
| 43 #include "utilities/events.hpp" | |
| 44 #include "utilities/xmlstream.hpp" | |
| 45 #ifdef SHARK | |
| 46 #include "shark/sharkCompiler.hpp" | |
| 47 #endif | |
| 0 | 48 |
| 49 #ifdef DTRACE_ENABLED | |
| 50 | |
| 51 // Only bother with this argument setup if dtrace is available | |
| 52 | |
| 4006 | 53 #ifndef USDT2 |
| 0 | 54 HS_DTRACE_PROBE_DECL8(hotspot, compiled__method__load, |
| 55 const char*, int, const char*, int, const char*, int, void*, size_t); | |
| 56 | |
| 57 HS_DTRACE_PROBE_DECL6(hotspot, compiled__method__unload, | |
| 58 char*, int, char*, int, char*, int); | |
| 59 | |
| 60 #define DTRACE_METHOD_UNLOAD_PROBE(method) \ | |
| 61 { \ | |
| 62 methodOop m = (method); \ | |
| 63 if (m != NULL) { \ | |
|
2177
3582bf76420e
6990754: Use native memory and reference counting to implement SymbolTable
coleenp
parents:
2142
diff
changeset
|
64 Symbol* klass_name = m->klass_name(); \ |
|
3582bf76420e
6990754: Use native memory and reference counting to implement SymbolTable
coleenp
parents:
2142
diff
changeset
|
65 Symbol* name = m->name(); \ |
|
3582bf76420e
6990754: Use native memory and reference counting to implement SymbolTable
coleenp
parents:
2142
diff
changeset
|
66 Symbol* signature = m->signature(); \ |
| 0 | 67 HS_DTRACE_PROBE6(hotspot, compiled__method__unload, \ |
| 68 klass_name->bytes(), klass_name->utf8_length(), \ | |
| 69 name->bytes(), name->utf8_length(), \ | |
| 70 signature->bytes(), signature->utf8_length()); \ | |
| 71 } \ | |
| 72 } | |
| 4006 | 73 #else /* USDT2 */ |
| 74 #define DTRACE_METHOD_UNLOAD_PROBE(method) \ | |
| 75 { \ | |
| 76 methodOop m = (method); \ | |
| 77 if (m != NULL) { \ | |
| 78 Symbol* klass_name = m->klass_name(); \ | |
| 79 Symbol* name = m->name(); \ | |
| 80 Symbol* signature = m->signature(); \ | |
| 81 HOTSPOT_COMPILED_METHOD_UNLOAD( \ | |
| 82 (char *) klass_name->bytes(), klass_name->utf8_length(), \ | |
| 83 (char *) name->bytes(), name->utf8_length(), \ | |
| 84 (char *) signature->bytes(), signature->utf8_length()); \ | |
| 85 } \ | |
| 86 } | |
| 87 #endif /* USDT2 */ | |
| 0 | 88 |
| 89 #else // ndef DTRACE_ENABLED | |
| 90 | |
| 91 #define DTRACE_METHOD_UNLOAD_PROBE(method) | |
| 92 | |
| 93 #endif | |
| 94 | |
| 95 bool nmethod::is_compiled_by_c1() const { | |
|
1155
4e6abf09f540
6912062: disassembler plugin needs to produce symbolic information in product mode
jrose
parents:
1141
diff
changeset
|
96 if (compiler() == NULL || method() == NULL) return false; // can happen during debug printing |
| 0 | 97 if (is_native_method()) return false; |
| 98 return compiler()->is_c1(); | |
| 99 } | |
| 100 bool nmethod::is_compiled_by_c2() const { | |
|
1155
4e6abf09f540
6912062: disassembler plugin needs to produce symbolic information in product mode
jrose
parents:
1141
diff
changeset
|
101 if (compiler() == NULL || method() == NULL) return false; // can happen during debug printing |
| 0 | 102 if (is_native_method()) return false; |
| 103 return compiler()->is_c2(); | |
| 104 } | |
| 1692 | 105 bool nmethod::is_compiled_by_shark() const { |
| 106 if (is_native_method()) return false; | |
| 107 assert(compiler() != NULL, "must be"); | |
| 108 return compiler()->is_shark(); | |
| 109 } | |
| 0 | 110 |
| 111 | |
| 112 | |
| 113 //--------------------------------------------------------------------------------- | |
| 114 // NMethod statistics | |
| 115 // They are printed under various flags, including: | |
| 116 // PrintC1Statistics, PrintOptoStatistics, LogVMOutput, and LogCompilation. | |
| 117 // (In the latter two cases, they like other stats are printed to the log only.) | |
| 118 | |
| 119 #ifndef PRODUCT | |
| 120 // These variables are put into one block to reduce relocations | |
| 121 // and make it simpler to print from the debugger. | |
| 122 static | |
| 123 struct nmethod_stats_struct { | |
| 124 int nmethod_count; | |
| 125 int total_size; | |
| 126 int relocation_size; | |
|
1762
0878d7bae69f
6961697: move nmethod constants section before instruction section
twisti
parents:
1748
diff
changeset
|
127 int consts_size; |
| 1748 | 128 int insts_size; |
| 0 | 129 int stub_size; |
| 130 int scopes_data_size; | |
| 131 int scopes_pcs_size; | |
| 132 int dependencies_size; | |
| 133 int handler_table_size; | |
| 134 int nul_chk_table_size; | |
| 135 int oops_size; | |
| 136 | |
| 137 void note_nmethod(nmethod* nm) { | |
| 138 nmethod_count += 1; | |
| 139 total_size += nm->size(); | |
| 140 relocation_size += nm->relocation_size(); | |
|
1762
0878d7bae69f
6961697: move nmethod constants section before instruction section
twisti
parents:
1748
diff
changeset
|
141 consts_size += nm->consts_size(); |
| 1748 | 142 insts_size += nm->insts_size(); |
| 0 | 143 stub_size += nm->stub_size(); |
|
1563
1a5913bf5e19
6951083: oops and relocations should part of nmethod not CodeBlob
twisti
parents:
1538
diff
changeset
|
144 oops_size += nm->oops_size(); |
| 0 | 145 scopes_data_size += nm->scopes_data_size(); |
| 146 scopes_pcs_size += nm->scopes_pcs_size(); | |
| 147 dependencies_size += nm->dependencies_size(); | |
| 148 handler_table_size += nm->handler_table_size(); | |
| 149 nul_chk_table_size += nm->nul_chk_table_size(); | |
| 150 } | |
| 151 void print_nmethod_stats() { | |
| 152 if (nmethod_count == 0) return; | |
| 153 tty->print_cr("Statistics for %d bytecoded nmethods:", nmethod_count); | |
| 154 if (total_size != 0) tty->print_cr(" total in heap = %d", total_size); | |
| 155 if (relocation_size != 0) tty->print_cr(" relocation = %d", relocation_size); | |
|
1762
0878d7bae69f
6961697: move nmethod constants section before instruction section
twisti
parents:
1748
diff
changeset
|
156 if (consts_size != 0) tty->print_cr(" constants = %d", consts_size); |
| 1748 | 157 if (insts_size != 0) tty->print_cr(" main code = %d", insts_size); |
| 0 | 158 if (stub_size != 0) tty->print_cr(" stub code = %d", stub_size); |
|
1563
1a5913bf5e19
6951083: oops and relocations should part of nmethod not CodeBlob
twisti
parents:
1538
diff
changeset
|
159 if (oops_size != 0) tty->print_cr(" oops = %d", oops_size); |
| 0 | 160 if (scopes_data_size != 0) tty->print_cr(" scopes data = %d", scopes_data_size); |
| 161 if (scopes_pcs_size != 0) tty->print_cr(" scopes pcs = %d", scopes_pcs_size); | |
| 162 if (dependencies_size != 0) tty->print_cr(" dependencies = %d", dependencies_size); | |
| 163 if (handler_table_size != 0) tty->print_cr(" handler table = %d", handler_table_size); | |
| 164 if (nul_chk_table_size != 0) tty->print_cr(" nul chk table = %d", nul_chk_table_size); | |
| 165 } | |
| 166 | |
| 167 int native_nmethod_count; | |
| 168 int native_total_size; | |
| 169 int native_relocation_size; | |
| 1748 | 170 int native_insts_size; |
| 0 | 171 int native_oops_size; |
| 172 void note_native_nmethod(nmethod* nm) { | |
| 173 native_nmethod_count += 1; | |
| 174 native_total_size += nm->size(); | |
| 175 native_relocation_size += nm->relocation_size(); | |
| 1748 | 176 native_insts_size += nm->insts_size(); |
| 0 | 177 native_oops_size += nm->oops_size(); |
| 178 } | |
| 179 void print_native_nmethod_stats() { | |
| 180 if (native_nmethod_count == 0) return; | |
| 181 tty->print_cr("Statistics for %d native nmethods:", native_nmethod_count); | |
| 182 if (native_total_size != 0) tty->print_cr(" N. total size = %d", native_total_size); | |
| 183 if (native_relocation_size != 0) tty->print_cr(" N. relocation = %d", native_relocation_size); | |
| 1748 | 184 if (native_insts_size != 0) tty->print_cr(" N. main code = %d", native_insts_size); |
| 0 | 185 if (native_oops_size != 0) tty->print_cr(" N. oops = %d", native_oops_size); |
| 186 } | |
| 187 | |
| 188 int pc_desc_resets; // number of resets (= number of caches) | |
| 189 int pc_desc_queries; // queries to nmethod::find_pc_desc | |
| 190 int pc_desc_approx; // number of those which have approximate true | |
|
2339
3d5a546351ef
7023931: PcDescCache::find_pc_desc should not write _last_pc_desc
phh
parents:
2321
diff
changeset
|
191 int pc_desc_repeats; // number of _pc_descs[0] hits |
| 0 | 192 int pc_desc_hits; // number of LRU cache hits |
| 193 int pc_desc_tests; // total number of PcDesc examinations | |
| 194 int pc_desc_searches; // total number of quasi-binary search steps | |
| 195 int pc_desc_adds; // number of LUR cache insertions | |
| 196 | |
| 197 void print_pc_stats() { | |
| 198 tty->print_cr("PcDesc Statistics: %d queries, %.2f comparisons per query", | |
| 199 pc_desc_queries, | |
| 200 (double)(pc_desc_tests + pc_desc_searches) | |
| 201 / pc_desc_queries); | |
| 202 tty->print_cr(" caches=%d queries=%d/%d, hits=%d+%d, tests=%d+%d, adds=%d", | |
| 203 pc_desc_resets, | |
| 204 pc_desc_queries, pc_desc_approx, | |
| 205 pc_desc_repeats, pc_desc_hits, | |
| 206 pc_desc_tests, pc_desc_searches, pc_desc_adds); | |
| 207 } | |
| 208 } nmethod_stats; | |
| 209 #endif //PRODUCT | |
| 210 | |
|
2321
1b4e6a5d98e0
7012914: JSR 292 MethodHandlesTest C1: frame::verify_return_pc(return_address) failed: must be a return pc
twisti
parents:
2195
diff
changeset
|
211 |
| 0 | 212 //--------------------------------------------------------------------------------- |
| 213 | |
| 214 | |
| 215 ExceptionCache::ExceptionCache(Handle exception, address pc, address handler) { | |
| 216 assert(pc != NULL, "Must be non null"); | |
| 217 assert(exception.not_null(), "Must be non null"); | |
| 218 assert(handler != NULL, "Must be non null"); | |
| 219 | |
| 220 _count = 0; | |
| 221 _exception_type = exception->klass(); | |
| 222 _next = NULL; | |
| 223 | |
| 224 add_address_and_handler(pc,handler); | |
| 225 } | |
| 226 | |
| 227 | |
| 228 address ExceptionCache::match(Handle exception, address pc) { | |
| 229 assert(pc != NULL,"Must be non null"); | |
| 230 assert(exception.not_null(),"Must be non null"); | |
| 231 if (exception->klass() == exception_type()) { | |
| 232 return (test_address(pc)); | |
| 233 } | |
| 234 | |
| 235 return NULL; | |
| 236 } | |
| 237 | |
| 238 | |
| 239 bool ExceptionCache::match_exception_with_space(Handle exception) { | |
| 240 assert(exception.not_null(),"Must be non null"); | |
| 241 if (exception->klass() == exception_type() && count() < cache_size) { | |
| 242 return true; | |
| 243 } | |
| 244 return false; | |
| 245 } | |
| 246 | |
| 247 | |
| 248 address ExceptionCache::test_address(address addr) { | |
| 249 for (int i=0; i<count(); i++) { | |
| 250 if (pc_at(i) == addr) { | |
| 251 return handler_at(i); | |
| 252 } | |
| 253 } | |
| 254 return NULL; | |
| 255 } | |
| 256 | |
| 257 | |
| 258 bool ExceptionCache::add_address_and_handler(address addr, address handler) { | |
| 259 if (test_address(addr) == handler) return true; | |
| 260 if (count() < cache_size) { | |
| 261 set_pc_at(count(),addr); | |
| 262 set_handler_at(count(), handler); | |
| 263 increment_count(); | |
| 264 return true; | |
| 265 } | |
| 266 return false; | |
| 267 } | |
| 268 | |
| 269 | |
| 270 // private method for handling exception cache | |
| 271 // These methods are private, and used to manipulate the exception cache | |
| 272 // directly. | |
| 273 ExceptionCache* nmethod::exception_cache_entry_for_exception(Handle exception) { | |
| 274 ExceptionCache* ec = exception_cache(); | |
| 275 while (ec != NULL) { | |
| 276 if (ec->match_exception_with_space(exception)) { | |
| 277 return ec; | |
| 278 } | |
| 279 ec = ec->next(); | |
| 280 } | |
| 281 return NULL; | |
| 282 } | |
| 283 | |
| 284 | |
| 285 //----------------------------------------------------------------------------- | |
| 286 | |
| 287 | |
| 288 // Helper used by both find_pc_desc methods. | |
| 289 static inline bool match_desc(PcDesc* pc, int pc_offset, bool approximate) { | |
| 290 NOT_PRODUCT(++nmethod_stats.pc_desc_tests); | |
| 291 if (!approximate) | |
| 292 return pc->pc_offset() == pc_offset; | |
| 293 else | |
| 294 return (pc-1)->pc_offset() < pc_offset && pc_offset <= pc->pc_offset(); | |
| 295 } | |
| 296 | |
| 297 void PcDescCache::reset_to(PcDesc* initial_pc_desc) { | |
| 298 if (initial_pc_desc == NULL) { | |
|
2339
3d5a546351ef
7023931: PcDescCache::find_pc_desc should not write _last_pc_desc
phh
parents:
2321
diff
changeset
|
299 _pc_descs[0] = NULL; // native method; no PcDescs at all |
| 0 | 300 return; |
| 301 } | |
| 302 NOT_PRODUCT(++nmethod_stats.pc_desc_resets); | |
| 303 // reset the cache by filling it with benign (non-null) values | |
| 304 assert(initial_pc_desc->pc_offset() < 0, "must be sentinel"); | |
| 305 for (int i = 0; i < cache_size; i++) | |
| 306 _pc_descs[i] = initial_pc_desc; | |
| 307 } | |
| 308 | |
| 309 PcDesc* PcDescCache::find_pc_desc(int pc_offset, bool approximate) { | |
| 310 NOT_PRODUCT(++nmethod_stats.pc_desc_queries); | |
|
2339
3d5a546351ef
7023931: PcDescCache::find_pc_desc should not write _last_pc_desc
phh
parents:
2321
diff
changeset
|
311 NOT_PRODUCT(if (approximate) ++nmethod_stats.pc_desc_approx); |
|
3d5a546351ef
7023931: PcDescCache::find_pc_desc should not write _last_pc_desc
phh
parents:
2321
diff
changeset
|
312 |
|
3d5a546351ef
7023931: PcDescCache::find_pc_desc should not write _last_pc_desc
phh
parents:
2321
diff
changeset
|
313 // Note: one might think that caching the most recently |
|
3d5a546351ef
7023931: PcDescCache::find_pc_desc should not write _last_pc_desc
phh
parents:
2321
diff
changeset
|
314 // read value separately would be a win, but one would be |
|
3d5a546351ef
7023931: PcDescCache::find_pc_desc should not write _last_pc_desc
phh
parents:
2321
diff
changeset
|
315 // wrong. When many threads are updating it, the cache |
|
3d5a546351ef
7023931: PcDescCache::find_pc_desc should not write _last_pc_desc
phh
parents:
2321
diff
changeset
|
316 // line it's in would bounce between caches, negating |
|
3d5a546351ef
7023931: PcDescCache::find_pc_desc should not write _last_pc_desc
phh
parents:
2321
diff
changeset
|
317 // any benefit. |
| 0 | 318 |
| 319 // In order to prevent race conditions do not load cache elements | |
| 320 // repeatedly, but use a local copy: | |
| 321 PcDesc* res; | |
| 322 | |
|
2339
3d5a546351ef
7023931: PcDescCache::find_pc_desc should not write _last_pc_desc
phh
parents:
2321
diff
changeset
|
323 // Step one: Check the most recently added value. |
|
3d5a546351ef
7023931: PcDescCache::find_pc_desc should not write _last_pc_desc
phh
parents:
2321
diff
changeset
|
324 res = _pc_descs[0]; |
|
3d5a546351ef
7023931: PcDescCache::find_pc_desc should not write _last_pc_desc
phh
parents:
2321
diff
changeset
|
325 if (res == NULL) return NULL; // native method; no PcDescs at all |
| 0 | 326 if (match_desc(res, pc_offset, approximate)) { |
| 327 NOT_PRODUCT(++nmethod_stats.pc_desc_repeats); | |
| 328 return res; | |
| 329 } | |
| 330 | |
|
2339
3d5a546351ef
7023931: PcDescCache::find_pc_desc should not write _last_pc_desc
phh
parents:
2321
diff
changeset
|
331 // Step two: Check the rest of the LRU cache. |
|
3d5a546351ef
7023931: PcDescCache::find_pc_desc should not write _last_pc_desc
phh
parents:
2321
diff
changeset
|
332 for (int i = 1; i < cache_size; ++i) { |
| 0 | 333 res = _pc_descs[i]; |
|
2339
3d5a546351ef
7023931: PcDescCache::find_pc_desc should not write _last_pc_desc
phh
parents:
2321
diff
changeset
|
334 if (res->pc_offset() < 0) break; // optimization: skip empty cache |
| 0 | 335 if (match_desc(res, pc_offset, approximate)) { |
| 336 NOT_PRODUCT(++nmethod_stats.pc_desc_hits); | |
| 337 return res; | |
| 338 } | |
| 339 } | |
| 340 | |
| 341 // Report failure. | |
| 342 return NULL; | |
| 343 } | |
| 344 | |
| 345 void PcDescCache::add_pc_desc(PcDesc* pc_desc) { | |
| 346 NOT_PRODUCT(++nmethod_stats.pc_desc_adds); | |
|
2339
3d5a546351ef
7023931: PcDescCache::find_pc_desc should not write _last_pc_desc
phh
parents:
2321
diff
changeset
|
347 // Update the LRU cache by shifting pc_desc forward. |
| 0 | 348 for (int i = 0; i < cache_size; i++) { |
| 349 PcDesc* next = _pc_descs[i]; | |
| 350 _pc_descs[i] = pc_desc; | |
| 351 pc_desc = next; | |
| 352 } | |
| 353 } | |
| 354 | |
| 355 // adjust pcs_size so that it is a multiple of both oopSize and | |
| 356 // sizeof(PcDesc) (assumes that if sizeof(PcDesc) is not a multiple | |
| 357 // of oopSize, then 2*sizeof(PcDesc) is) | |
|
2339
3d5a546351ef
7023931: PcDescCache::find_pc_desc should not write _last_pc_desc
phh
parents:
2321
diff
changeset
|
358 static int adjust_pcs_size(int pcs_size) { |
| 0 | 359 int nsize = round_to(pcs_size, oopSize); |
| 360 if ((nsize % sizeof(PcDesc)) != 0) { | |
| 361 nsize = pcs_size + sizeof(PcDesc); | |
| 362 } | |
|
2339
3d5a546351ef
7023931: PcDescCache::find_pc_desc should not write _last_pc_desc
phh
parents:
2321
diff
changeset
|
363 assert((nsize % oopSize) == 0, "correct alignment"); |
| 0 | 364 return nsize; |
| 365 } | |
| 366 | |
| 367 //----------------------------------------------------------------------------- | |
| 368 | |
| 369 | |
| 370 void nmethod::add_exception_cache_entry(ExceptionCache* new_entry) { | |
| 371 assert(ExceptionCache_lock->owned_by_self(),"Must hold the ExceptionCache_lock"); | |
| 372 assert(new_entry != NULL,"Must be non null"); | |
| 373 assert(new_entry->next() == NULL, "Must be null"); | |
| 374 | |
| 375 if (exception_cache() != NULL) { | |
| 376 new_entry->set_next(exception_cache()); | |
| 377 } | |
| 378 set_exception_cache(new_entry); | |
| 379 } | |
| 380 | |
| 381 void nmethod::remove_from_exception_cache(ExceptionCache* ec) { | |
| 382 ExceptionCache* prev = NULL; | |
| 383 ExceptionCache* curr = exception_cache(); | |
| 384 assert(curr != NULL, "nothing to remove"); | |
| 385 // find the previous and next entry of ec | |
| 386 while (curr != ec) { | |
| 387 prev = curr; | |
| 388 curr = curr->next(); | |
| 389 assert(curr != NULL, "ExceptionCache not found"); | |
| 390 } | |
| 391 // now: curr == ec | |
| 392 ExceptionCache* next = curr->next(); | |
| 393 if (prev == NULL) { | |
| 394 set_exception_cache(next); | |
| 395 } else { | |
| 396 prev->set_next(next); | |
| 397 } | |
| 398 delete curr; | |
| 399 } | |
| 400 | |
| 401 | |
| 402 // public method for accessing the exception cache | |
| 403 // These are the public access methods. | |
| 404 address nmethod::handler_for_exception_and_pc(Handle exception, address pc) { | |
| 405 // We never grab a lock to read the exception cache, so we may | |
| 406 // have false negatives. This is okay, as it can only happen during | |
| 407 // the first few exception lookups for a given nmethod. | |
| 408 ExceptionCache* ec = exception_cache(); | |
| 409 while (ec != NULL) { | |
| 410 address ret_val; | |
| 411 if ((ret_val = ec->match(exception,pc)) != NULL) { | |
| 412 return ret_val; | |
| 413 } | |
| 414 ec = ec->next(); | |
| 415 } | |
| 416 return NULL; | |
| 417 } | |
| 418 | |
| 419 | |
| 420 void nmethod::add_handler_for_exception_and_pc(Handle exception, address pc, address handler) { | |
| 421 // There are potential race conditions during exception cache updates, so we | |
| 422 // must own the ExceptionCache_lock before doing ANY modifications. Because | |
| 605 | 423 // we don't lock during reads, it is possible to have several threads attempt |
| 0 | 424 // to update the cache with the same data. We need to check for already inserted |
| 425 // copies of the current data before adding it. | |
| 426 | |
| 427 MutexLocker ml(ExceptionCache_lock); | |
| 428 ExceptionCache* target_entry = exception_cache_entry_for_exception(exception); | |
| 429 | |
| 430 if (target_entry == NULL || !target_entry->add_address_and_handler(pc,handler)) { | |
| 431 target_entry = new ExceptionCache(exception,pc,handler); | |
| 432 add_exception_cache_entry(target_entry); | |
| 433 } | |
| 434 } | |
| 435 | |
| 436 | |
| 437 //-------------end of code for ExceptionCache-------------- | |
| 438 | |
| 439 | |
| 440 int nmethod::total_size() const { | |
| 441 return | |
|
1762
0878d7bae69f
6961697: move nmethod constants section before instruction section
twisti
parents:
1748
diff
changeset
|
442 consts_size() + |
| 1748 | 443 insts_size() + |
| 0 | 444 stub_size() + |
| 445 scopes_data_size() + | |
| 446 scopes_pcs_size() + | |
| 447 handler_table_size() + | |
| 448 nul_chk_table_size(); | |
| 449 } | |
| 450 | |
| 451 const char* nmethod::compile_kind() const { | |
| 452 if (is_osr_method()) return "osr"; | |
|
1109
032260830071
5057818: codecache full and compiler disabled in bigapps fastdebug run
never
parents:
994
diff
changeset
|
453 if (method() != NULL && is_native_method()) return "c2n"; |
| 0 | 454 return NULL; |
| 455 } | |
| 456 | |
|
1644
2a47bd84841f
6965184: possible races in make_not_entrant_or_zombie
never
parents:
1616
diff
changeset
|
457 // Fill in default values for various flag fields |
|
2a47bd84841f
6965184: possible races in make_not_entrant_or_zombie
never
parents:
1616
diff
changeset
|
458 void nmethod::init_defaults() { |
|
2a47bd84841f
6965184: possible races in make_not_entrant_or_zombie
never
parents:
1616
diff
changeset
|
459 _state = alive; |
|
2a47bd84841f
6965184: possible races in make_not_entrant_or_zombie
never
parents:
1616
diff
changeset
|
460 _marked_for_reclamation = 0; |
|
2a47bd84841f
6965184: possible races in make_not_entrant_or_zombie
never
parents:
1616
diff
changeset
|
461 _has_flushed_dependencies = 0; |
|
2a47bd84841f
6965184: possible races in make_not_entrant_or_zombie
never
parents:
1616
diff
changeset
|
462 _speculatively_disconnected = 0; |
|
2a47bd84841f
6965184: possible races in make_not_entrant_or_zombie
never
parents:
1616
diff
changeset
|
463 _has_unsafe_access = 0; |
|
2a47bd84841f
6965184: possible races in make_not_entrant_or_zombie
never
parents:
1616
diff
changeset
|
464 _has_method_handle_invokes = 0; |
|
4873
0382d2b469b2
7013347: allow crypto functions to be called inline to enhance performance
never
parents:
4872
diff
changeset
|
465 _lazy_critical_native = 0; |
|
1644
2a47bd84841f
6965184: possible races in make_not_entrant_or_zombie
never
parents:
1616
diff
changeset
|
466 _marked_for_deoptimization = 0; |
|
2a47bd84841f
6965184: possible races in make_not_entrant_or_zombie
never
parents:
1616
diff
changeset
|
467 _lock_count = 0; |
|
2a47bd84841f
6965184: possible races in make_not_entrant_or_zombie
never
parents:
1616
diff
changeset
|
468 _stack_traversal_mark = 0; |
|
2a47bd84841f
6965184: possible races in make_not_entrant_or_zombie
never
parents:
1616
diff
changeset
|
469 _unload_reported = false; // jvmti state |
|
2a47bd84841f
6965184: possible races in make_not_entrant_or_zombie
never
parents:
1616
diff
changeset
|
470 |
| 1726 | 471 #ifdef ASSERT |
| 472 _oops_are_stale = false; | |
| 473 #endif | |
| 474 | |
|
1644
2a47bd84841f
6965184: possible races in make_not_entrant_or_zombie
never
parents:
1616
diff
changeset
|
475 _oops_do_mark_link = NULL; |
|
2a47bd84841f
6965184: possible races in make_not_entrant_or_zombie
never
parents:
1616
diff
changeset
|
476 _jmethod_id = NULL; |
|
2a47bd84841f
6965184: possible races in make_not_entrant_or_zombie
never
parents:
1616
diff
changeset
|
477 _osr_link = NULL; |
|
2a47bd84841f
6965184: possible races in make_not_entrant_or_zombie
never
parents:
1616
diff
changeset
|
478 _scavenge_root_link = NULL; |
|
2a47bd84841f
6965184: possible races in make_not_entrant_or_zombie
never
parents:
1616
diff
changeset
|
479 _scavenge_root_state = 0; |
|
2a47bd84841f
6965184: possible races in make_not_entrant_or_zombie
never
parents:
1616
diff
changeset
|
480 _saved_nmethod_link = NULL; |
|
2a47bd84841f
6965184: possible races in make_not_entrant_or_zombie
never
parents:
1616
diff
changeset
|
481 _compiler = NULL; |
|
2a47bd84841f
6965184: possible races in make_not_entrant_or_zombie
never
parents:
1616
diff
changeset
|
482 |
|
2a47bd84841f
6965184: possible races in make_not_entrant_or_zombie
never
parents:
1616
diff
changeset
|
483 #ifdef HAVE_DTRACE_H |
|
2a47bd84841f
6965184: possible races in make_not_entrant_or_zombie
never
parents:
1616
diff
changeset
|
484 _trap_offset = 0; |
|
2a47bd84841f
6965184: possible races in make_not_entrant_or_zombie
never
parents:
1616
diff
changeset
|
485 #endif // def HAVE_DTRACE_H |
|
2a47bd84841f
6965184: possible races in make_not_entrant_or_zombie
never
parents:
1616
diff
changeset
|
486 } |
| 0 | 487 |
| 488 | |
| 489 nmethod* nmethod::new_native_nmethod(methodHandle method, | |
|
2405
3d58a4983660
7022998: JSR 292 recursive method handle calls inline themselves infinitely
twisti
parents:
2376
diff
changeset
|
490 int compile_id, |
| 0 | 491 CodeBuffer *code_buffer, |
| 492 int vep_offset, | |
| 493 int frame_complete, | |
| 494 int frame_size, | |
| 495 ByteSize basic_lock_owner_sp_offset, | |
| 496 ByteSize basic_lock_sp_offset, | |
| 497 OopMapSet* oop_maps) { | |
| 498 // create nmethod | |
| 499 nmethod* nm = NULL; | |
| 500 { | |
| 501 MutexLockerEx mu(CodeCache_lock, Mutex::_no_safepoint_check_flag); | |
| 502 int native_nmethod_size = allocation_size(code_buffer, sizeof(nmethod)); | |
| 503 CodeOffsets offsets; | |
| 504 offsets.set_value(CodeOffsets::Verified_Entry, vep_offset); | |
| 505 offsets.set_value(CodeOffsets::Frame_Complete, frame_complete); | |
| 506 nm = new (native_nmethod_size) | |
|
2405
3d58a4983660
7022998: JSR 292 recursive method handle calls inline themselves infinitely
twisti
parents:
2376
diff
changeset
|
507 nmethod(method(), native_nmethod_size, compile_id, &offsets, |
| 0 | 508 code_buffer, frame_size, |
| 509 basic_lock_owner_sp_offset, basic_lock_sp_offset, | |
| 510 oop_maps); | |
| 511 NOT_PRODUCT(if (nm != NULL) nmethod_stats.note_native_nmethod(nm)); | |
| 512 if (PrintAssembly && nm != NULL) | |
| 513 Disassembler::decode(nm); | |
| 514 } | |
| 515 // verify nmethod | |
| 516 debug_only(if (nm) nm->verify();) // might block | |
| 517 | |
| 518 if (nm != NULL) { | |
| 519 nm->log_new_nmethod(); | |
| 520 } | |
| 521 | |
| 522 return nm; | |
| 523 } | |
| 524 | |
|
116
018d5b58dd4f
6537506: Provide a mechanism for specifying Java-level USDT-like dtrace probes
kamg
parents:
100
diff
changeset
|
525 #ifdef HAVE_DTRACE_H |
|
018d5b58dd4f
6537506: Provide a mechanism for specifying Java-level USDT-like dtrace probes
kamg
parents:
100
diff
changeset
|
526 nmethod* nmethod::new_dtrace_nmethod(methodHandle method, |
|
018d5b58dd4f
6537506: Provide a mechanism for specifying Java-level USDT-like dtrace probes
kamg
parents:
100
diff
changeset
|
527 CodeBuffer *code_buffer, |
|
018d5b58dd4f
6537506: Provide a mechanism for specifying Java-level USDT-like dtrace probes
kamg
parents:
100
diff
changeset
|
528 int vep_offset, |
|
018d5b58dd4f
6537506: Provide a mechanism for specifying Java-level USDT-like dtrace probes
kamg
parents:
100
diff
changeset
|
529 int trap_offset, |
|
018d5b58dd4f
6537506: Provide a mechanism for specifying Java-level USDT-like dtrace probes
kamg
parents:
100
diff
changeset
|
530 int frame_complete, |
|
018d5b58dd4f
6537506: Provide a mechanism for specifying Java-level USDT-like dtrace probes
kamg
parents:
100
diff
changeset
|
531 int frame_size) { |
|
018d5b58dd4f
6537506: Provide a mechanism for specifying Java-level USDT-like dtrace probes
kamg
parents:
100
diff
changeset
|
532 // create nmethod |
|
018d5b58dd4f
6537506: Provide a mechanism for specifying Java-level USDT-like dtrace probes
kamg
parents:
100
diff
changeset
|
533 nmethod* nm = NULL; |
|
018d5b58dd4f
6537506: Provide a mechanism for specifying Java-level USDT-like dtrace probes
kamg
parents:
100
diff
changeset
|
534 { |
|
018d5b58dd4f
6537506: Provide a mechanism for specifying Java-level USDT-like dtrace probes
kamg
parents:
100
diff
changeset
|
535 MutexLockerEx mu(CodeCache_lock, Mutex::_no_safepoint_check_flag); |
|
018d5b58dd4f
6537506: Provide a mechanism for specifying Java-level USDT-like dtrace probes
kamg
parents:
100
diff
changeset
|
536 int nmethod_size = allocation_size(code_buffer, sizeof(nmethod)); |
|
018d5b58dd4f
6537506: Provide a mechanism for specifying Java-level USDT-like dtrace probes
kamg
parents:
100
diff
changeset
|
537 CodeOffsets offsets; |
|
018d5b58dd4f
6537506: Provide a mechanism for specifying Java-level USDT-like dtrace probes
kamg
parents:
100
diff
changeset
|
538 offsets.set_value(CodeOffsets::Verified_Entry, vep_offset); |
|
018d5b58dd4f
6537506: Provide a mechanism for specifying Java-level USDT-like dtrace probes
kamg
parents:
100
diff
changeset
|
539 offsets.set_value(CodeOffsets::Dtrace_trap, trap_offset); |
|
018d5b58dd4f
6537506: Provide a mechanism for specifying Java-level USDT-like dtrace probes
kamg
parents:
100
diff
changeset
|
540 offsets.set_value(CodeOffsets::Frame_Complete, frame_complete); |
|
018d5b58dd4f
6537506: Provide a mechanism for specifying Java-level USDT-like dtrace probes
kamg
parents:
100
diff
changeset
|
541 |
|
018d5b58dd4f
6537506: Provide a mechanism for specifying Java-level USDT-like dtrace probes
kamg
parents:
100
diff
changeset
|
542 nm = new (nmethod_size) nmethod(method(), nmethod_size, &offsets, code_buffer, frame_size); |
|
018d5b58dd4f
6537506: Provide a mechanism for specifying Java-level USDT-like dtrace probes
kamg
parents:
100
diff
changeset
|
543 |
|
018d5b58dd4f
6537506: Provide a mechanism for specifying Java-level USDT-like dtrace probes
kamg
parents:
100
diff
changeset
|
544 NOT_PRODUCT(if (nm != NULL) nmethod_stats.note_nmethod(nm)); |
|
018d5b58dd4f
6537506: Provide a mechanism for specifying Java-level USDT-like dtrace probes
kamg
parents:
100
diff
changeset
|
545 if (PrintAssembly && nm != NULL) |
|
018d5b58dd4f
6537506: Provide a mechanism for specifying Java-level USDT-like dtrace probes
kamg
parents:
100
diff
changeset
|
546 Disassembler::decode(nm); |
|
018d5b58dd4f
6537506: Provide a mechanism for specifying Java-level USDT-like dtrace probes
kamg
parents:
100
diff
changeset
|
547 } |
|
018d5b58dd4f
6537506: Provide a mechanism for specifying Java-level USDT-like dtrace probes
kamg
parents:
100
diff
changeset
|
548 // verify nmethod |
|
018d5b58dd4f
6537506: Provide a mechanism for specifying Java-level USDT-like dtrace probes
kamg
parents:
100
diff
changeset
|
549 debug_only(if (nm) nm->verify();) // might block |
|
018d5b58dd4f
6537506: Provide a mechanism for specifying Java-level USDT-like dtrace probes
kamg
parents:
100
diff
changeset
|
550 |
|
018d5b58dd4f
6537506: Provide a mechanism for specifying Java-level USDT-like dtrace probes
kamg
parents:
100
diff
changeset
|
551 if (nm != NULL) { |
|
018d5b58dd4f
6537506: Provide a mechanism for specifying Java-level USDT-like dtrace probes
kamg
parents:
100
diff
changeset
|
552 nm->log_new_nmethod(); |
|
018d5b58dd4f
6537506: Provide a mechanism for specifying Java-level USDT-like dtrace probes
kamg
parents:
100
diff
changeset
|
553 } |
|
018d5b58dd4f
6537506: Provide a mechanism for specifying Java-level USDT-like dtrace probes
kamg
parents:
100
diff
changeset
|
554 |
|
018d5b58dd4f
6537506: Provide a mechanism for specifying Java-level USDT-like dtrace probes
kamg
parents:
100
diff
changeset
|
555 return nm; |
|
018d5b58dd4f
6537506: Provide a mechanism for specifying Java-level USDT-like dtrace probes
kamg
parents:
100
diff
changeset
|
556 } |
|
018d5b58dd4f
6537506: Provide a mechanism for specifying Java-level USDT-like dtrace probes
kamg
parents:
100
diff
changeset
|
557 |
|
018d5b58dd4f
6537506: Provide a mechanism for specifying Java-level USDT-like dtrace probes
kamg
parents:
100
diff
changeset
|
558 #endif // def HAVE_DTRACE_H |
|
018d5b58dd4f
6537506: Provide a mechanism for specifying Java-level USDT-like dtrace probes
kamg
parents:
100
diff
changeset
|
559 |
| 0 | 560 nmethod* nmethod::new_nmethod(methodHandle method, |
| 561 int compile_id, | |
| 562 int entry_bci, | |
| 563 CodeOffsets* offsets, | |
| 564 int orig_pc_offset, | |
| 565 DebugInformationRecorder* debug_info, | |
| 566 Dependencies* dependencies, | |
| 567 CodeBuffer* code_buffer, int frame_size, | |
| 568 OopMapSet* oop_maps, | |
| 569 ExceptionHandlerTable* handler_table, | |
| 570 ImplicitExceptionTable* nul_chk_table, | |
| 571 AbstractCompiler* compiler, | |
| 572 int comp_level | |
| 573 ) | |
| 574 { | |
| 575 assert(debug_info->oop_recorder() == code_buffer->oop_recorder(), "shared OR"); | |
| 576 // create nmethod | |
| 577 nmethod* nm = NULL; | |
| 578 { MutexLockerEx mu(CodeCache_lock, Mutex::_no_safepoint_check_flag); | |
| 579 int nmethod_size = | |
| 580 allocation_size(code_buffer, sizeof(nmethod)) | |
| 581 + adjust_pcs_size(debug_info->pcs_size()) | |
| 582 + round_to(dependencies->size_in_bytes() , oopSize) | |
| 583 + round_to(handler_table->size_in_bytes(), oopSize) | |
| 584 + round_to(nul_chk_table->size_in_bytes(), oopSize) | |
| 585 + round_to(debug_info->data_size() , oopSize); | |
| 586 nm = new (nmethod_size) | |
| 587 nmethod(method(), nmethod_size, compile_id, entry_bci, offsets, | |
| 588 orig_pc_offset, debug_info, dependencies, code_buffer, frame_size, | |
| 589 oop_maps, | |
| 590 handler_table, | |
| 591 nul_chk_table, | |
| 592 compiler, | |
| 593 comp_level); | |
| 594 if (nm != NULL) { | |
| 595 // To make dependency checking during class loading fast, record | |
| 596 // the nmethod dependencies in the classes it is dependent on. | |
| 597 // This allows the dependency checking code to simply walk the | |
| 598 // class hierarchy above the loaded class, checking only nmethods | |
| 599 // which are dependent on those classes. The slow way is to | |
| 600 // check every nmethod for dependencies which makes it linear in | |
| 601 // the number of methods compiled. For applications with a lot | |
| 602 // classes the slow way is too slow. | |
| 603 for (Dependencies::DepStream deps(nm); deps.next(); ) { | |
| 604 klassOop klass = deps.context_type(); | |
| 605 if (klass == NULL) continue; // ignore things like evol_method | |
| 606 | |
| 607 // record this nmethod as dependent on this klass | |
| 608 instanceKlass::cast(klass)->add_dependent_nmethod(nm); | |
| 609 } | |
| 610 } | |
| 611 NOT_PRODUCT(if (nm != NULL) nmethod_stats.note_nmethod(nm)); | |
| 612 if (PrintAssembly && nm != NULL) | |
| 613 Disassembler::decode(nm); | |
| 614 } | |
| 615 | |
| 616 // verify nmethod | |
| 617 debug_only(if (nm) nm->verify();) // might block | |
| 618 | |
| 619 if (nm != NULL) { | |
| 620 nm->log_new_nmethod(); | |
| 621 } | |
| 622 | |
| 623 // done | |
| 624 return nm; | |
| 625 } | |
| 626 | |
| 627 | |
| 628 // For native wrappers | |
| 629 nmethod::nmethod( | |
| 630 methodOop method, | |
| 631 int nmethod_size, | |
|
2405
3d58a4983660
7022998: JSR 292 recursive method handle calls inline themselves infinitely
twisti
parents:
2376
diff
changeset
|
632 int compile_id, |
| 0 | 633 CodeOffsets* offsets, |
| 634 CodeBuffer* code_buffer, | |
| 635 int frame_size, | |
| 636 ByteSize basic_lock_owner_sp_offset, | |
| 637 ByteSize basic_lock_sp_offset, | |
| 638 OopMapSet* oop_maps ) | |
| 639 : CodeBlob("native nmethod", code_buffer, sizeof(nmethod), | |
| 640 nmethod_size, offsets->value(CodeOffsets::Frame_Complete), frame_size, oop_maps), | |
| 2019 | 641 _native_receiver_sp_offset(basic_lock_owner_sp_offset), |
| 642 _native_basic_lock_sp_offset(basic_lock_sp_offset) | |
| 0 | 643 { |
| 644 { | |
| 645 debug_only(No_Safepoint_Verifier nsv;) | |
| 646 assert_locked_or_safepoint(CodeCache_lock); | |
| 647 | |
|
1644
2a47bd84841f
6965184: possible races in make_not_entrant_or_zombie
never
parents:
1616
diff
changeset
|
648 init_defaults(); |
| 0 | 649 _method = method; |
| 650 _entry_bci = InvocationEntryBci; | |
| 651 // We have no exception handler or deopt handler make the | |
| 652 // values something that will never match a pc like the nmethod vtable entry | |
| 653 _exception_offset = 0; | |
| 654 _deoptimize_offset = 0; | |
| 1204 | 655 _deoptimize_mh_offset = 0; |
| 0 | 656 _orig_pc_offset = 0; |
|
1644
2a47bd84841f
6965184: possible races in make_not_entrant_or_zombie
never
parents:
1616
diff
changeset
|
657 |
| 1748 | 658 _consts_offset = data_offset(); |
| 0 | 659 _stub_offset = data_offset(); |
|
1563
1a5913bf5e19
6951083: oops and relocations should part of nmethod not CodeBlob
twisti
parents:
1538
diff
changeset
|
660 _oops_offset = data_offset(); |
|
1a5913bf5e19
6951083: oops and relocations should part of nmethod not CodeBlob
twisti
parents:
1538
diff
changeset
|
661 _scopes_data_offset = _oops_offset + round_to(code_buffer->total_oop_size(), oopSize); |
| 0 | 662 _scopes_pcs_offset = _scopes_data_offset; |
| 663 _dependencies_offset = _scopes_pcs_offset; | |
| 664 _handler_table_offset = _dependencies_offset; | |
| 665 _nul_chk_table_offset = _handler_table_offset; | |
| 666 _nmethod_end_offset = _nul_chk_table_offset; | |
|
2405
3d58a4983660
7022998: JSR 292 recursive method handle calls inline themselves infinitely
twisti
parents:
2376
diff
changeset
|
667 _compile_id = compile_id; |
| 0 | 668 _comp_level = CompLevel_none; |
| 1748 | 669 _entry_point = code_begin() + offsets->value(CodeOffsets::Entry); |
| 670 _verified_entry_point = code_begin() + offsets->value(CodeOffsets::Verified_Entry); | |
| 0 | 671 _osr_entry_point = NULL; |
| 672 _exception_cache = NULL; | |
| 673 _pc_desc_cache.reset_to(NULL); | |
| 674 | |
| 675 code_buffer->copy_oops_to(this); | |
|
2376
c7f3d0b4570f
7017732: move static fields into Class to prepare for perm gen removal
never
parents:
2375
diff
changeset
|
676 if (ScavengeRootsInCode && detect_scavenge_root_oops()) { |
|
c7f3d0b4570f
7017732: move static fields into Class to prepare for perm gen removal
never
parents:
2375
diff
changeset
|
677 CodeCache::add_scavenge_root_nmethod(this); |
|
c7f3d0b4570f
7017732: move static fields into Class to prepare for perm gen removal
never
parents:
2375
diff
changeset
|
678 } |
|
989
148e5441d916
6863023: need non-perm oops in code cache for JSR 292
jrose
parents:
931
diff
changeset
|
679 debug_only(verify_scavenge_root_oops()); |
| 0 | 680 CodeCache::commit(this); |
| 681 } | |
| 682 | |
| 683 if (PrintNativeNMethods || PrintDebugInfo || PrintRelocations || PrintDependencies) { | |
| 684 ttyLocker ttyl; // keep the following output all in one block | |
| 685 // This output goes directly to the tty, not the compiler log. | |
| 686 // To enable tools to match it up with the compilation activity, | |
| 687 // be sure to tag this tty output with the compile ID. | |
| 688 if (xtty != NULL) { | |
| 689 xtty->begin_head("print_native_nmethod"); | |
| 690 xtty->method(_method); | |
| 691 xtty->stamp(); | |
| 692 xtty->end_head(" address='" INTPTR_FORMAT "'", (intptr_t) this); | |
| 693 } | |
| 694 // print the header part first | |
| 695 print(); | |
| 696 // then print the requested information | |
| 697 if (PrintNativeNMethods) { | |
| 698 print_code(); | |
| 699 oop_maps->print(); | |
| 700 } | |
| 701 if (PrintRelocations) { | |
| 702 print_relocations(); | |
| 703 } | |
| 704 if (xtty != NULL) { | |
| 705 xtty->tail("print_native_nmethod"); | |
| 706 } | |
| 707 } | |
| 708 } | |
| 709 | |
|
116
018d5b58dd4f
6537506: Provide a mechanism for specifying Java-level USDT-like dtrace probes
kamg
parents:
100
diff
changeset
|
710 // For dtrace wrappers |
|
018d5b58dd4f
6537506: Provide a mechanism for specifying Java-level USDT-like dtrace probes
kamg
parents:
100
diff
changeset
|
711 #ifdef HAVE_DTRACE_H |
|
018d5b58dd4f
6537506: Provide a mechanism for specifying Java-level USDT-like dtrace probes
kamg
parents:
100
diff
changeset
|
712 nmethod::nmethod( |
|
018d5b58dd4f
6537506: Provide a mechanism for specifying Java-level USDT-like dtrace probes
kamg
parents:
100
diff
changeset
|
713 methodOop method, |
|
018d5b58dd4f
6537506: Provide a mechanism for specifying Java-level USDT-like dtrace probes
kamg
parents:
100
diff
changeset
|
714 int nmethod_size, |
|
018d5b58dd4f
6537506: Provide a mechanism for specifying Java-level USDT-like dtrace probes
kamg
parents:
100
diff
changeset
|
715 CodeOffsets* offsets, |
|
018d5b58dd4f
6537506: Provide a mechanism for specifying Java-level USDT-like dtrace probes
kamg
parents:
100
diff
changeset
|
716 CodeBuffer* code_buffer, |
|
018d5b58dd4f
6537506: Provide a mechanism for specifying Java-level USDT-like dtrace probes
kamg
parents:
100
diff
changeset
|
717 int frame_size) |
|
018d5b58dd4f
6537506: Provide a mechanism for specifying Java-level USDT-like dtrace probes
kamg
parents:
100
diff
changeset
|
718 : CodeBlob("dtrace nmethod", code_buffer, sizeof(nmethod), |
|
018d5b58dd4f
6537506: Provide a mechanism for specifying Java-level USDT-like dtrace probes
kamg
parents:
100
diff
changeset
|
719 nmethod_size, offsets->value(CodeOffsets::Frame_Complete), frame_size, NULL), |
| 2019 | 720 _native_receiver_sp_offset(in_ByteSize(-1)), |
| 721 _native_basic_lock_sp_offset(in_ByteSize(-1)) | |
|
116
018d5b58dd4f
6537506: Provide a mechanism for specifying Java-level USDT-like dtrace probes
kamg
parents:
100
diff
changeset
|
722 { |
|
018d5b58dd4f
6537506: Provide a mechanism for specifying Java-level USDT-like dtrace probes
kamg
parents:
100
diff
changeset
|
723 { |
|
018d5b58dd4f
6537506: Provide a mechanism for specifying Java-level USDT-like dtrace probes
kamg
parents:
100
diff
changeset
|
724 debug_only(No_Safepoint_Verifier nsv;) |
|
018d5b58dd4f
6537506: Provide a mechanism for specifying Java-level USDT-like dtrace probes
kamg
parents:
100
diff
changeset
|
725 assert_locked_or_safepoint(CodeCache_lock); |
|
018d5b58dd4f
6537506: Provide a mechanism for specifying Java-level USDT-like dtrace probes
kamg
parents:
100
diff
changeset
|
726 |
|
1644
2a47bd84841f
6965184: possible races in make_not_entrant_or_zombie
never
parents:
1616
diff
changeset
|
727 init_defaults(); |
|
116
018d5b58dd4f
6537506: Provide a mechanism for specifying Java-level USDT-like dtrace probes
kamg
parents:
100
diff
changeset
|
728 _method = method; |
|
018d5b58dd4f
6537506: Provide a mechanism for specifying Java-level USDT-like dtrace probes
kamg
parents:
100
diff
changeset
|
729 _entry_bci = InvocationEntryBci; |
|
018d5b58dd4f
6537506: Provide a mechanism for specifying Java-level USDT-like dtrace probes
kamg
parents:
100
diff
changeset
|
730 // We have no exception handler or deopt handler make the |
|
018d5b58dd4f
6537506: Provide a mechanism for specifying Java-level USDT-like dtrace probes
kamg
parents:
100
diff
changeset
|
731 // values something that will never match a pc like the nmethod vtable entry |
|
018d5b58dd4f
6537506: Provide a mechanism for specifying Java-level USDT-like dtrace probes
kamg
parents:
100
diff
changeset
|
732 _exception_offset = 0; |
|
018d5b58dd4f
6537506: Provide a mechanism for specifying Java-level USDT-like dtrace probes
kamg
parents:
100
diff
changeset
|
733 _deoptimize_offset = 0; |
| 1204 | 734 _deoptimize_mh_offset = 0; |
|
1378
9f5b60a14736
6939930: exception unwind changes in 6919934 hurts compilation speed
never
parents:
1253
diff
changeset
|
735 _unwind_handler_offset = -1; |
|
116
018d5b58dd4f
6537506: Provide a mechanism for specifying Java-level USDT-like dtrace probes
kamg
parents:
100
diff
changeset
|
736 _trap_offset = offsets->value(CodeOffsets::Dtrace_trap); |
|
018d5b58dd4f
6537506: Provide a mechanism for specifying Java-level USDT-like dtrace probes
kamg
parents:
100
diff
changeset
|
737 _orig_pc_offset = 0; |
| 1748 | 738 _consts_offset = data_offset(); |
|
116
018d5b58dd4f
6537506: Provide a mechanism for specifying Java-level USDT-like dtrace probes
kamg
parents:
100
diff
changeset
|
739 _stub_offset = data_offset(); |
|
1563
1a5913bf5e19
6951083: oops and relocations should part of nmethod not CodeBlob
twisti
parents:
1538
diff
changeset
|
740 _oops_offset = data_offset(); |
|
1a5913bf5e19
6951083: oops and relocations should part of nmethod not CodeBlob
twisti
parents:
1538
diff
changeset
|
741 _scopes_data_offset = _oops_offset + round_to(code_buffer->total_oop_size(), oopSize); |
|
116
018d5b58dd4f
6537506: Provide a mechanism for specifying Java-level USDT-like dtrace probes
kamg
parents:
100
diff
changeset
|
742 _scopes_pcs_offset = _scopes_data_offset; |
|
018d5b58dd4f
6537506: Provide a mechanism for specifying Java-level USDT-like dtrace probes
kamg
parents:
100
diff
changeset
|
743 _dependencies_offset = _scopes_pcs_offset; |
|
018d5b58dd4f
6537506: Provide a mechanism for specifying Java-level USDT-like dtrace probes
kamg
parents:
100
diff
changeset
|
744 _handler_table_offset = _dependencies_offset; |
|
018d5b58dd4f
6537506: Provide a mechanism for specifying Java-level USDT-like dtrace probes
kamg
parents:
100
diff
changeset
|
745 _nul_chk_table_offset = _handler_table_offset; |
|
018d5b58dd4f
6537506: Provide a mechanism for specifying Java-level USDT-like dtrace probes
kamg
parents:
100
diff
changeset
|
746 _nmethod_end_offset = _nul_chk_table_offset; |
|
018d5b58dd4f
6537506: Provide a mechanism for specifying Java-level USDT-like dtrace probes
kamg
parents:
100
diff
changeset
|
747 _compile_id = 0; // default |
|
018d5b58dd4f
6537506: Provide a mechanism for specifying Java-level USDT-like dtrace probes
kamg
parents:
100
diff
changeset
|
748 _comp_level = CompLevel_none; |
| 1748 | 749 _entry_point = code_begin() + offsets->value(CodeOffsets::Entry); |
| 750 _verified_entry_point = code_begin() + offsets->value(CodeOffsets::Verified_Entry); | |
|
116
018d5b58dd4f
6537506: Provide a mechanism for specifying Java-level USDT-like dtrace probes
kamg
parents:
100
diff
changeset
|
751 _osr_entry_point = NULL; |
|
018d5b58dd4f
6537506: Provide a mechanism for specifying Java-level USDT-like dtrace probes
kamg
parents:
100
diff
changeset
|
752 _exception_cache = NULL; |
|
018d5b58dd4f
6537506: Provide a mechanism for specifying Java-level USDT-like dtrace probes
kamg
parents:
100
diff
changeset
|
753 _pc_desc_cache.reset_to(NULL); |
|
018d5b58dd4f
6537506: Provide a mechanism for specifying Java-level USDT-like dtrace probes
kamg
parents:
100
diff
changeset
|
754 |
|
018d5b58dd4f
6537506: Provide a mechanism for specifying Java-level USDT-like dtrace probes
kamg
parents:
100
diff
changeset
|
755 code_buffer->copy_oops_to(this); |
|
989
148e5441d916
6863023: need non-perm oops in code cache for JSR 292
jrose
parents:
931
diff
changeset
|
756 debug_only(verify_scavenge_root_oops()); |
|
116
018d5b58dd4f
6537506: Provide a mechanism for specifying Java-level USDT-like dtrace probes
kamg
parents:
100
diff
changeset
|
757 CodeCache::commit(this); |
|
018d5b58dd4f
6537506: Provide a mechanism for specifying Java-level USDT-like dtrace probes
kamg
parents:
100
diff
changeset
|
758 } |
|
018d5b58dd4f
6537506: Provide a mechanism for specifying Java-level USDT-like dtrace probes
kamg
parents:
100
diff
changeset
|
759 |
|
018d5b58dd4f
6537506: Provide a mechanism for specifying Java-level USDT-like dtrace probes
kamg
parents:
100
diff
changeset
|
760 if (PrintNMethods || PrintDebugInfo || PrintRelocations || PrintDependencies) { |
|
018d5b58dd4f
6537506: Provide a mechanism for specifying Java-level USDT-like dtrace probes
kamg
parents:
100
diff
changeset
|
761 ttyLocker ttyl; // keep the following output all in one block |
|
018d5b58dd4f
6537506: Provide a mechanism for specifying Java-level USDT-like dtrace probes
kamg
parents:
100
diff
changeset
|
762 // This output goes directly to the tty, not the compiler log. |
|
018d5b58dd4f
6537506: Provide a mechanism for specifying Java-level USDT-like dtrace probes
kamg
parents:
100
diff
changeset
|
763 // To enable tools to match it up with the compilation activity, |
|
018d5b58dd4f
6537506: Provide a mechanism for specifying Java-level USDT-like dtrace probes
kamg
parents:
100
diff
changeset
|
764 // be sure to tag this tty output with the compile ID. |
|
018d5b58dd4f
6537506: Provide a mechanism for specifying Java-level USDT-like dtrace probes
kamg
parents:
100
diff
changeset
|
765 if (xtty != NULL) { |
|
018d5b58dd4f
6537506: Provide a mechanism for specifying Java-level USDT-like dtrace probes
kamg
parents:
100
diff
changeset
|
766 xtty->begin_head("print_dtrace_nmethod"); |
|
018d5b58dd4f
6537506: Provide a mechanism for specifying Java-level USDT-like dtrace probes
kamg
parents:
100
diff
changeset
|
767 xtty->method(_method); |
|
018d5b58dd4f
6537506: Provide a mechanism for specifying Java-level USDT-like dtrace probes
kamg
parents:
100
diff
changeset
|
768 xtty->stamp(); |
|
018d5b58dd4f
6537506: Provide a mechanism for specifying Java-level USDT-like dtrace probes
kamg
parents:
100
diff
changeset
|
769 xtty->end_head(" address='" INTPTR_FORMAT "'", (intptr_t) this); |
|
018d5b58dd4f
6537506: Provide a mechanism for specifying Java-level USDT-like dtrace probes
kamg
parents:
100
diff
changeset
|
770 } |
|
018d5b58dd4f
6537506: Provide a mechanism for specifying Java-level USDT-like dtrace probes
kamg
parents:
100
diff
changeset
|
771 // print the header part first |
|
018d5b58dd4f
6537506: Provide a mechanism for specifying Java-level USDT-like dtrace probes
kamg
parents:
100
diff
changeset
|
772 print(); |
|
018d5b58dd4f
6537506: Provide a mechanism for specifying Java-level USDT-like dtrace probes
kamg
parents:
100
diff
changeset
|
773 // then print the requested information |
|
018d5b58dd4f
6537506: Provide a mechanism for specifying Java-level USDT-like dtrace probes
kamg
parents:
100
diff
changeset
|
774 if (PrintNMethods) { |
|
018d5b58dd4f
6537506: Provide a mechanism for specifying Java-level USDT-like dtrace probes
kamg
parents:
100
diff
changeset
|
775 print_code(); |
|
018d5b58dd4f
6537506: Provide a mechanism for specifying Java-level USDT-like dtrace probes
kamg
parents:
100
diff
changeset
|
776 } |
|
018d5b58dd4f
6537506: Provide a mechanism for specifying Java-level USDT-like dtrace probes
kamg
parents:
100
diff
changeset
|
777 if (PrintRelocations) { |
|
018d5b58dd4f
6537506: Provide a mechanism for specifying Java-level USDT-like dtrace probes
kamg
parents:
100
diff
changeset
|
778 print_relocations(); |
|
018d5b58dd4f
6537506: Provide a mechanism for specifying Java-level USDT-like dtrace probes
kamg
parents:
100
diff
changeset
|
779 } |
|
018d5b58dd4f
6537506: Provide a mechanism for specifying Java-level USDT-like dtrace probes
kamg
parents:
100
diff
changeset
|
780 if (xtty != NULL) { |
|
018d5b58dd4f
6537506: Provide a mechanism for specifying Java-level USDT-like dtrace probes
kamg
parents:
100
diff
changeset
|
781 xtty->tail("print_dtrace_nmethod"); |
|
018d5b58dd4f
6537506: Provide a mechanism for specifying Java-level USDT-like dtrace probes
kamg
parents:
100
diff
changeset
|
782 } |
|
018d5b58dd4f
6537506: Provide a mechanism for specifying Java-level USDT-like dtrace probes
kamg
parents:
100
diff
changeset
|
783 } |
|
018d5b58dd4f
6537506: Provide a mechanism for specifying Java-level USDT-like dtrace probes
kamg
parents:
100
diff
changeset
|
784 } |
|
018d5b58dd4f
6537506: Provide a mechanism for specifying Java-level USDT-like dtrace probes
kamg
parents:
100
diff
changeset
|
785 #endif // def HAVE_DTRACE_H |
| 0 | 786 |
| 787 void* nmethod::operator new(size_t size, int nmethod_size) { | |
| 788 // Always leave some room in the CodeCache for I2C/C2I adapters | |
|
2353
1c0cf339481b
7025742: Can not use CodeCache::unallocated_capacity() with fragmented CodeCache
kvn
parents:
2349
diff
changeset
|
789 if (CodeCache::largest_free_block() < CodeCacheMinimumFreeSpace) return NULL; |
| 0 | 790 return CodeCache::allocate(nmethod_size); |
| 791 } | |
| 792 | |
| 793 | |
| 794 nmethod::nmethod( | |
| 795 methodOop method, | |
| 796 int nmethod_size, | |
| 797 int compile_id, | |
| 798 int entry_bci, | |
| 799 CodeOffsets* offsets, | |
| 800 int orig_pc_offset, | |
| 801 DebugInformationRecorder* debug_info, | |
| 802 Dependencies* dependencies, | |
| 803 CodeBuffer *code_buffer, | |
| 804 int frame_size, | |
| 805 OopMapSet* oop_maps, | |
| 806 ExceptionHandlerTable* handler_table, | |
| 807 ImplicitExceptionTable* nul_chk_table, | |
| 808 AbstractCompiler* compiler, | |
| 809 int comp_level | |
| 810 ) | |
| 811 : CodeBlob("nmethod", code_buffer, sizeof(nmethod), | |
| 812 nmethod_size, offsets->value(CodeOffsets::Frame_Complete), frame_size, oop_maps), | |
| 2019 | 813 _native_receiver_sp_offset(in_ByteSize(-1)), |
| 814 _native_basic_lock_sp_offset(in_ByteSize(-1)) | |
| 0 | 815 { |
| 816 assert(debug_info->oop_recorder() == code_buffer->oop_recorder(), "shared OR"); | |
| 817 { | |
| 818 debug_only(No_Safepoint_Verifier nsv;) | |
| 819 assert_locked_or_safepoint(CodeCache_lock); | |
| 820 | |
|
1644
2a47bd84841f
6965184: possible races in make_not_entrant_or_zombie
never
parents:
1616
diff
changeset
|
821 init_defaults(); |
| 0 | 822 _method = method; |
|
1644
2a47bd84841f
6965184: possible races in make_not_entrant_or_zombie
never
parents:
1616
diff
changeset
|
823 _entry_bci = entry_bci; |
| 0 | 824 _compile_id = compile_id; |
| 825 _comp_level = comp_level; | |
| 826 _compiler = compiler; | |
| 827 _orig_pc_offset = orig_pc_offset; | |
| 1748 | 828 |
| 829 // Section offsets | |
|
1762
0878d7bae69f
6961697: move nmethod constants section before instruction section
twisti
parents:
1748
diff
changeset
|
830 _consts_offset = content_offset() + code_buffer->total_offset_of(code_buffer->consts()); |
|
0878d7bae69f
6961697: move nmethod constants section before instruction section
twisti
parents:
1748
diff
changeset
|
831 _stub_offset = content_offset() + code_buffer->total_offset_of(code_buffer->stubs()); |
| 0 | 832 |
| 833 // Exception handler and deopt handler are in the stub section | |
|
2083
7d9caaedafce
6990933: assert(sender_cb) failed: sanity in frame::sender_for_interpreter_frame
twisti
parents:
1972
diff
changeset
|
834 assert(offsets->value(CodeOffsets::Exceptions) != -1, "must be set"); |
|
7d9caaedafce
6990933: assert(sender_cb) failed: sanity in frame::sender_for_interpreter_frame
twisti
parents:
1972
diff
changeset
|
835 assert(offsets->value(CodeOffsets::Deopt ) != -1, "must be set"); |
| 1748 | 836 _exception_offset = _stub_offset + offsets->value(CodeOffsets::Exceptions); |
| 837 _deoptimize_offset = _stub_offset + offsets->value(CodeOffsets::Deopt); | |
|
2083
7d9caaedafce
6990933: assert(sender_cb) failed: sanity in frame::sender_for_interpreter_frame
twisti
parents:
1972
diff
changeset
|
838 if (offsets->value(CodeOffsets::DeoptMH) != -1) { |
|
1762
0878d7bae69f
6961697: move nmethod constants section before instruction section
twisti
parents:
1748
diff
changeset
|
839 _deoptimize_mh_offset = _stub_offset + offsets->value(CodeOffsets::DeoptMH); |
|
0878d7bae69f
6961697: move nmethod constants section before instruction section
twisti
parents:
1748
diff
changeset
|
840 } else { |
|
0878d7bae69f
6961697: move nmethod constants section before instruction section
twisti
parents:
1748
diff
changeset
|
841 _deoptimize_mh_offset = -1; |
|
0878d7bae69f
6961697: move nmethod constants section before instruction section
twisti
parents:
1748
diff
changeset
|
842 } |
|
1378
9f5b60a14736
6939930: exception unwind changes in 6919934 hurts compilation speed
never
parents:
1253
diff
changeset
|
843 if (offsets->value(CodeOffsets::UnwindHandler) != -1) { |
| 1748 | 844 _unwind_handler_offset = code_offset() + offsets->value(CodeOffsets::UnwindHandler); |
|
1378
9f5b60a14736
6939930: exception unwind changes in 6919934 hurts compilation speed
never
parents:
1253
diff
changeset
|
845 } else { |
| 1748 | 846 _unwind_handler_offset = -1; |
|
1378
9f5b60a14736
6939930: exception unwind changes in 6919934 hurts compilation speed
never
parents:
1253
diff
changeset
|
847 } |
| 1748 | 848 |
|
1563
1a5913bf5e19
6951083: oops and relocations should part of nmethod not CodeBlob
twisti
parents:
1538
diff
changeset
|
849 _oops_offset = data_offset(); |
|
1a5913bf5e19
6951083: oops and relocations should part of nmethod not CodeBlob
twisti
parents:
1538
diff
changeset
|
850 _scopes_data_offset = _oops_offset + round_to(code_buffer->total_oop_size (), oopSize); |
|
1a5913bf5e19
6951083: oops and relocations should part of nmethod not CodeBlob
twisti
parents:
1538
diff
changeset
|
851 _scopes_pcs_offset = _scopes_data_offset + round_to(debug_info->data_size (), oopSize); |
| 0 | 852 _dependencies_offset = _scopes_pcs_offset + adjust_pcs_size(debug_info->pcs_size()); |
| 853 _handler_table_offset = _dependencies_offset + round_to(dependencies->size_in_bytes (), oopSize); | |
| 854 _nul_chk_table_offset = _handler_table_offset + round_to(handler_table->size_in_bytes(), oopSize); | |
| 855 _nmethod_end_offset = _nul_chk_table_offset + round_to(nul_chk_table->size_in_bytes(), oopSize); | |
| 856 | |
| 1748 | 857 _entry_point = code_begin() + offsets->value(CodeOffsets::Entry); |
| 858 _verified_entry_point = code_begin() + offsets->value(CodeOffsets::Verified_Entry); | |
| 859 _osr_entry_point = code_begin() + offsets->value(CodeOffsets::OSR_Entry); | |
| 0 | 860 _exception_cache = NULL; |
| 861 _pc_desc_cache.reset_to(scopes_pcs_begin()); | |
| 862 | |
| 863 // Copy contents of ScopeDescRecorder to nmethod | |
| 864 code_buffer->copy_oops_to(this); | |
| 865 debug_info->copy_to(this); | |
| 866 dependencies->copy_to(this); | |
|
989
148e5441d916
6863023: need non-perm oops in code cache for JSR 292
jrose
parents:
931
diff
changeset
|
867 if (ScavengeRootsInCode && detect_scavenge_root_oops()) { |
|
148e5441d916
6863023: need non-perm oops in code cache for JSR 292
jrose
parents:
931
diff
changeset
|
868 CodeCache::add_scavenge_root_nmethod(this); |
|
148e5441d916
6863023: need non-perm oops in code cache for JSR 292
jrose
parents:
931
diff
changeset
|
869 } |
|
148e5441d916
6863023: need non-perm oops in code cache for JSR 292
jrose
parents:
931
diff
changeset
|
870 debug_only(verify_scavenge_root_oops()); |
| 0 | 871 |
| 872 CodeCache::commit(this); | |
| 873 | |
| 874 // Copy contents of ExceptionHandlerTable to nmethod | |
| 875 handler_table->copy_to(this); | |
| 876 nul_chk_table->copy_to(this); | |
| 877 | |
| 878 // we use the information of entry points to find out if a method is | |
| 879 // static or non static | |
| 880 assert(compiler->is_c2() || | |
| 881 _method->is_static() == (entry_point() == _verified_entry_point), | |
| 882 " entry points must be same for static methods and vice versa"); | |
| 883 } | |
| 884 | |
|
100
c7c777385a15
6667042: PrintAssembly option does not work without special plugin
jrose
parents:
30
diff
changeset
|
885 bool printnmethods = PrintNMethods |
|
c7c777385a15
6667042: PrintAssembly option does not work without special plugin
jrose
parents:
30
diff
changeset
|
886 || CompilerOracle::should_print(_method) |
|
c7c777385a15
6667042: PrintAssembly option does not work without special plugin
jrose
parents:
30
diff
changeset
|
887 || CompilerOracle::has_option_string(_method, "PrintNMethods"); |
| 0 | 888 if (printnmethods || PrintDebugInfo || PrintRelocations || PrintDependencies || PrintExceptionHandlers) { |
| 889 print_nmethod(printnmethods); | |
| 890 } | |
| 891 } | |
| 892 | |
| 893 | |
| 894 // Print a short set of xml attributes to identify this nmethod. The | |
| 895 // output should be embedded in some other element. | |
| 896 void nmethod::log_identity(xmlStream* log) const { | |
| 897 log->print(" compile_id='%d'", compile_id()); | |
| 898 const char* nm_kind = compile_kind(); | |
| 899 if (nm_kind != NULL) log->print(" compile_kind='%s'", nm_kind); | |
| 900 if (compiler() != NULL) { | |
| 901 log->print(" compiler='%s'", compiler()->name()); | |
| 902 } | |
| 1783 | 903 if (TieredCompilation) { |
| 904 log->print(" level='%d'", comp_level()); | |
| 905 } | |
| 0 | 906 } |
| 907 | |
| 908 | |
| 909 #define LOG_OFFSET(log, name) \ | |
| 910 if ((intptr_t)name##_end() - (intptr_t)name##_begin()) \ | |
| 911 log->print(" " XSTR(name) "_offset='%d'" , \ | |
| 912 (intptr_t)name##_begin() - (intptr_t)this) | |
| 913 | |
| 914 | |
| 915 void nmethod::log_new_nmethod() const { | |
| 916 if (LogCompilation && xtty != NULL) { | |
| 917 ttyLocker ttyl; | |
| 918 HandleMark hm; | |
| 919 xtty->begin_elem("nmethod"); | |
| 920 log_identity(xtty); | |
| 1748 | 921 xtty->print(" entry='" INTPTR_FORMAT "' size='%d'", code_begin(), size()); |
| 0 | 922 xtty->print(" address='" INTPTR_FORMAT "'", (intptr_t) this); |
| 923 | |
| 924 LOG_OFFSET(xtty, relocation); | |
|
1762
0878d7bae69f
6961697: move nmethod constants section before instruction section
twisti
parents:
1748
diff
changeset
|
925 LOG_OFFSET(xtty, consts); |
| 1748 | 926 LOG_OFFSET(xtty, insts); |
| 0 | 927 LOG_OFFSET(xtty, stub); |
| 928 LOG_OFFSET(xtty, scopes_data); | |
| 929 LOG_OFFSET(xtty, scopes_pcs); | |
| 930 LOG_OFFSET(xtty, dependencies); | |
| 931 LOG_OFFSET(xtty, handler_table); | |
| 932 LOG_OFFSET(xtty, nul_chk_table); | |
| 933 LOG_OFFSET(xtty, oops); | |
| 934 | |
| 935 xtty->method(method()); | |
| 936 xtty->stamp(); | |
| 937 xtty->end_elem(); | |
| 938 } | |
| 939 } | |
| 940 | |
| 941 #undef LOG_OFFSET | |
| 942 | |
| 943 | |
| 944 // Print out more verbose output usually for a newly created nmethod. | |
|
2405
3d58a4983660
7022998: JSR 292 recursive method handle calls inline themselves infinitely
twisti
parents:
2376
diff
changeset
|
945 void nmethod::print_on(outputStream* st, const char* msg) const { |
| 0 | 946 if (st != NULL) { |
| 947 ttyLocker ttyl; | |
|
6266
1d7922586cf6
7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents:
4873
diff
changeset
|
948 if (WizardMode) { |
|
1d7922586cf6
7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents:
4873
diff
changeset
|
949 CompileTask::print_compilation(st, this, msg, /*short_form:*/ true); |
|
1d7922586cf6
7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents:
4873
diff
changeset
|
950 st->print_cr(" (" INTPTR_FORMAT ")", this); |
|
1d7922586cf6
7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents:
4873
diff
changeset
|
951 } else { |
|
1d7922586cf6
7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents:
4873
diff
changeset
|
952 CompileTask::print_compilation(st, this, msg, /*short_form:*/ false); |
|
1d7922586cf6
7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents:
4873
diff
changeset
|
953 } |
| 0 | 954 } |
| 955 } | |
| 956 | |
| 957 | |
| 958 void nmethod::print_nmethod(bool printmethod) { | |
| 959 ttyLocker ttyl; // keep the following output all in one block | |
| 960 if (xtty != NULL) { | |
| 961 xtty->begin_head("print_nmethod"); | |
| 962 xtty->stamp(); | |
| 963 xtty->end_head(); | |
| 964 } | |
| 965 // print the header part first | |
| 966 print(); | |
| 967 // then print the requested information | |
| 968 if (printmethod) { | |
| 969 print_code(); | |
| 970 print_pcs(); | |
|
6266
1d7922586cf6
7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents:
4873
diff
changeset
|
971 if (oop_maps()) { |
|
1d7922586cf6
7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents:
4873
diff
changeset
|
972 oop_maps()->print(); |
|
1d7922586cf6
7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents:
4873
diff
changeset
|
973 } |
| 0 | 974 } |
| 975 if (PrintDebugInfo) { | |
| 976 print_scopes(); | |
| 977 } | |
| 978 if (PrintRelocations) { | |
| 979 print_relocations(); | |
| 980 } | |
| 981 if (PrintDependencies) { | |
| 982 print_dependencies(); | |
| 983 } | |
| 984 if (PrintExceptionHandlers) { | |
| 985 print_handler_table(); | |
| 986 print_nul_chk_table(); | |
| 987 } | |
| 988 if (xtty != NULL) { | |
| 989 xtty->tail("print_nmethod"); | |
| 990 } | |
| 991 } | |
| 992 | |
| 993 | |
|
1563
1a5913bf5e19
6951083: oops and relocations should part of nmethod not CodeBlob
twisti
parents:
1538
diff
changeset
|
994 // Promote one word from an assembly-time handle to a live embedded oop. |
|
1a5913bf5e19
6951083: oops and relocations should part of nmethod not CodeBlob
twisti
parents:
1538
diff
changeset
|
995 inline void nmethod::initialize_immediate_oop(oop* dest, jobject handle) { |
|
1a5913bf5e19
6951083: oops and relocations should part of nmethod not CodeBlob
twisti
parents:
1538
diff
changeset
|
996 if (handle == NULL || |
|
1a5913bf5e19
6951083: oops and relocations should part of nmethod not CodeBlob
twisti
parents:
1538
diff
changeset
|
997 // As a special case, IC oops are initialized to 1 or -1. |
|
1a5913bf5e19
6951083: oops and relocations should part of nmethod not CodeBlob
twisti
parents:
1538
diff
changeset
|
998 handle == (jobject) Universe::non_oop_word()) { |
|
1a5913bf5e19
6951083: oops and relocations should part of nmethod not CodeBlob
twisti
parents:
1538
diff
changeset
|
999 (*dest) = (oop) handle; |
|
1a5913bf5e19
6951083: oops and relocations should part of nmethod not CodeBlob
twisti
parents:
1538
diff
changeset
|
1000 } else { |
|
1a5913bf5e19
6951083: oops and relocations should part of nmethod not CodeBlob
twisti
parents:
1538
diff
changeset
|
1001 (*dest) = JNIHandles::resolve_non_null(handle); |
|
1a5913bf5e19
6951083: oops and relocations should part of nmethod not CodeBlob
twisti
parents:
1538
diff
changeset
|
1002 } |
|
1a5913bf5e19
6951083: oops and relocations should part of nmethod not CodeBlob
twisti
parents:
1538
diff
changeset
|
1003 } |
|
1a5913bf5e19
6951083: oops and relocations should part of nmethod not CodeBlob
twisti
parents:
1538
diff
changeset
|
1004 |
|
1a5913bf5e19
6951083: oops and relocations should part of nmethod not CodeBlob
twisti
parents:
1538
diff
changeset
|
1005 |
|
1a5913bf5e19
6951083: oops and relocations should part of nmethod not CodeBlob
twisti
parents:
1538
diff
changeset
|
1006 void nmethod::copy_oops(GrowableArray<jobject>* array) { |
|
1a5913bf5e19
6951083: oops and relocations should part of nmethod not CodeBlob
twisti
parents:
1538
diff
changeset
|
1007 //assert(oops_size() == 0, "do this handshake just once, please"); |
|
1a5913bf5e19
6951083: oops and relocations should part of nmethod not CodeBlob
twisti
parents:
1538
diff
changeset
|
1008 int length = array->length(); |
|
1a5913bf5e19
6951083: oops and relocations should part of nmethod not CodeBlob
twisti
parents:
1538
diff
changeset
|
1009 assert((address)(oops_begin() + length) <= data_end(), "oops big enough"); |
|
1a5913bf5e19
6951083: oops and relocations should part of nmethod not CodeBlob
twisti
parents:
1538
diff
changeset
|
1010 oop* dest = oops_begin(); |
|
1a5913bf5e19
6951083: oops and relocations should part of nmethod not CodeBlob
twisti
parents:
1538
diff
changeset
|
1011 for (int index = 0 ; index < length; index++) { |
|
1a5913bf5e19
6951083: oops and relocations should part of nmethod not CodeBlob
twisti
parents:
1538
diff
changeset
|
1012 initialize_immediate_oop(&dest[index], array->at(index)); |
|
1a5913bf5e19
6951083: oops and relocations should part of nmethod not CodeBlob
twisti
parents:
1538
diff
changeset
|
1013 } |
|
1a5913bf5e19
6951083: oops and relocations should part of nmethod not CodeBlob
twisti
parents:
1538
diff
changeset
|
1014 |
|
1a5913bf5e19
6951083: oops and relocations should part of nmethod not CodeBlob
twisti
parents:
1538
diff
changeset
|
1015 // Now we can fix up all the oops in the code. We need to do this |
|
1a5913bf5e19
6951083: oops and relocations should part of nmethod not CodeBlob
twisti
parents:
1538
diff
changeset
|
1016 // in the code because the assembler uses jobjects as placeholders. |
|
1a5913bf5e19
6951083: oops and relocations should part of nmethod not CodeBlob
twisti
parents:
1538
diff
changeset
|
1017 // The code and relocations have already been initialized by the |
|
1a5913bf5e19
6951083: oops and relocations should part of nmethod not CodeBlob
twisti
parents:
1538
diff
changeset
|
1018 // CodeBlob constructor, so it is valid even at this early point to |
|
1a5913bf5e19
6951083: oops and relocations should part of nmethod not CodeBlob
twisti
parents:
1538
diff
changeset
|
1019 // iterate over relocations and patch the code. |
|
1a5913bf5e19
6951083: oops and relocations should part of nmethod not CodeBlob
twisti
parents:
1538
diff
changeset
|
1020 fix_oop_relocations(NULL, NULL, /*initialize_immediates=*/ true); |
|
1a5913bf5e19
6951083: oops and relocations should part of nmethod not CodeBlob
twisti
parents:
1538
diff
changeset
|
1021 } |
|
1a5913bf5e19
6951083: oops and relocations should part of nmethod not CodeBlob
twisti
parents:
1538
diff
changeset
|
1022 |
|
1a5913bf5e19
6951083: oops and relocations should part of nmethod not CodeBlob
twisti
parents:
1538
diff
changeset
|
1023 |
|
1a5913bf5e19
6951083: oops and relocations should part of nmethod not CodeBlob
twisti
parents:
1538
diff
changeset
|
1024 bool nmethod::is_at_poll_return(address pc) { |
|
1a5913bf5e19
6951083: oops and relocations should part of nmethod not CodeBlob
twisti
parents:
1538
diff
changeset
|
1025 RelocIterator iter(this, pc, pc+1); |
|
1a5913bf5e19
6951083: oops and relocations should part of nmethod not CodeBlob
twisti
parents:
1538
diff
changeset
|
1026 while (iter.next()) { |
|
1a5913bf5e19
6951083: oops and relocations should part of nmethod not CodeBlob
twisti
parents:
1538
diff
changeset
|
1027 if (iter.type() == relocInfo::poll_return_type) |
|
1a5913bf5e19
6951083: oops and relocations should part of nmethod not CodeBlob
twisti
parents:
1538
diff
changeset
|
1028 return true; |
|
1a5913bf5e19
6951083: oops and relocations should part of nmethod not CodeBlob
twisti
parents:
1538
diff
changeset
|
1029 } |
|
1a5913bf5e19
6951083: oops and relocations should part of nmethod not CodeBlob
twisti
parents:
1538
diff
changeset
|
1030 return false; |
|
1a5913bf5e19
6951083: oops and relocations should part of nmethod not CodeBlob
twisti
parents:
1538
diff
changeset
|
1031 } |
|
1a5913bf5e19
6951083: oops and relocations should part of nmethod not CodeBlob
twisti
parents:
1538
diff
changeset
|
1032 |
|
1a5913bf5e19
6951083: oops and relocations should part of nmethod not CodeBlob
twisti
parents:
1538
diff
changeset
|
1033 |
|
1a5913bf5e19
6951083: oops and relocations should part of nmethod not CodeBlob
twisti
parents:
1538
diff
changeset
|
1034 bool nmethod::is_at_poll_or_poll_return(address pc) { |
|
1a5913bf5e19
6951083: oops and relocations should part of nmethod not CodeBlob
twisti
parents:
1538
diff
changeset
|
1035 RelocIterator iter(this, pc, pc+1); |
|
1a5913bf5e19
6951083: oops and relocations should part of nmethod not CodeBlob
twisti
parents:
1538
diff
changeset
|
1036 while (iter.next()) { |
|
1a5913bf5e19
6951083: oops and relocations should part of nmethod not CodeBlob
twisti
parents:
1538
diff
changeset
|
1037 relocInfo::relocType t = iter.type(); |
|
1a5913bf5e19
6951083: oops and relocations should part of nmethod not CodeBlob
twisti
parents:
1538
diff
changeset
|
1038 if (t == relocInfo::poll_return_type || t == relocInfo::poll_type) |
|
1a5913bf5e19
6951083: oops and relocations should part of nmethod not CodeBlob
twisti
parents:
1538
diff
changeset
|
1039 return true; |
|
1a5913bf5e19
6951083: oops and relocations should part of nmethod not CodeBlob
twisti
parents:
1538
diff
changeset
|
1040 } |
|
1a5913bf5e19
6951083: oops and relocations should part of nmethod not CodeBlob
twisti
parents:
1538
diff
changeset
|
1041 return false; |
|
1a5913bf5e19
6951083: oops and relocations should part of nmethod not CodeBlob
twisti
parents:
1538
diff
changeset
|
1042 } |
|
1a5913bf5e19
6951083: oops and relocations should part of nmethod not CodeBlob
twisti
parents:
1538
diff
changeset
|
1043 |
|
1a5913bf5e19
6951083: oops and relocations should part of nmethod not CodeBlob
twisti
parents:
1538
diff
changeset
|
1044 |
|
1a5913bf5e19
6951083: oops and relocations should part of nmethod not CodeBlob
twisti
parents:
1538
diff
changeset
|
1045 void nmethod::fix_oop_relocations(address begin, address end, bool initialize_immediates) { |
|
1a5913bf5e19
6951083: oops and relocations should part of nmethod not CodeBlob
twisti
parents:
1538
diff
changeset
|
1046 // re-patch all oop-bearing instructions, just in case some oops moved |
|
1a5913bf5e19
6951083: oops and relocations should part of nmethod not CodeBlob
twisti
parents:
1538
diff
changeset
|
1047 RelocIterator iter(this, begin, end); |
|
1a5913bf5e19
6951083: oops and relocations should part of nmethod not CodeBlob
twisti
parents:
1538
diff
changeset
|
1048 while (iter.next()) { |
|
1a5913bf5e19
6951083: oops and relocations should part of nmethod not CodeBlob
twisti
parents:
1538
diff
changeset
|
1049 if (iter.type() == relocInfo::oop_type) { |
|
1a5913bf5e19
6951083: oops and relocations should part of nmethod not CodeBlob
twisti
parents:
1538
diff
changeset
|
1050 oop_Relocation* reloc = iter.oop_reloc(); |
|
1a5913bf5e19
6951083: oops and relocations should part of nmethod not CodeBlob
twisti
parents:
1538
diff
changeset
|
1051 if (initialize_immediates && reloc->oop_is_immediate()) { |
|
1a5913bf5e19
6951083: oops and relocations should part of nmethod not CodeBlob
twisti
parents:
1538
diff
changeset
|
1052 oop* dest = reloc->oop_addr(); |
|
1a5913bf5e19
6951083: oops and relocations should part of nmethod not CodeBlob
twisti
parents:
1538
diff
changeset
|
1053 initialize_immediate_oop(dest, (jobject) *dest); |
|
1a5913bf5e19
6951083: oops and relocations should part of nmethod not CodeBlob
twisti
parents:
1538
diff
changeset
|
1054 } |
|
1a5913bf5e19
6951083: oops and relocations should part of nmethod not CodeBlob
twisti
parents:
1538
diff
changeset
|
1055 // Refresh the oop-related bits of this instruction. |
|
1a5913bf5e19
6951083: oops and relocations should part of nmethod not CodeBlob
twisti
parents:
1538
diff
changeset
|
1056 reloc->fix_oop_relocation(); |
|
1a5913bf5e19
6951083: oops and relocations should part of nmethod not CodeBlob
twisti
parents:
1538
diff
changeset
|
1057 } |
|
1a5913bf5e19
6951083: oops and relocations should part of nmethod not CodeBlob
twisti
parents:
1538
diff
changeset
|
1058 |
|
1a5913bf5e19
6951083: oops and relocations should part of nmethod not CodeBlob
twisti
parents:
1538
diff
changeset
|
1059 // There must not be any interfering patches or breakpoints. |
|
1a5913bf5e19
6951083: oops and relocations should part of nmethod not CodeBlob
twisti
parents:
1538
diff
changeset
|
1060 assert(!(iter.type() == relocInfo::breakpoint_type |
|
1a5913bf5e19
6951083: oops and relocations should part of nmethod not CodeBlob
twisti
parents:
1538
diff
changeset
|
1061 && iter.breakpoint_reloc()->active()), |
|
1a5913bf5e19
6951083: oops and relocations should part of nmethod not CodeBlob
twisti
parents:
1538
diff
changeset
|
1062 "no active breakpoint"); |
|
1a5913bf5e19
6951083: oops and relocations should part of nmethod not CodeBlob
twisti
parents:
1538
diff
changeset
|
1063 } |
|
1a5913bf5e19
6951083: oops and relocations should part of nmethod not CodeBlob
twisti
parents:
1538
diff
changeset
|
1064 } |
|
1a5913bf5e19
6951083: oops and relocations should part of nmethod not CodeBlob
twisti
parents:
1538
diff
changeset
|
1065 |
|
1a5913bf5e19
6951083: oops and relocations should part of nmethod not CodeBlob
twisti
parents:
1538
diff
changeset
|
1066 |
|
2375
d673ef06fe96
7028374: race in fix_oop_relocations for scavengeable nmethods
never
parents:
2360
diff
changeset
|
1067 void nmethod::verify_oop_relocations() { |
|
d673ef06fe96
7028374: race in fix_oop_relocations for scavengeable nmethods
never
parents:
2360
diff
changeset
|
1068 // Ensure sure that the code matches the current oop values |
|
d673ef06fe96
7028374: race in fix_oop_relocations for scavengeable nmethods
never
parents:
2360
diff
changeset
|
1069 RelocIterator iter(this, NULL, NULL); |
|
d673ef06fe96
7028374: race in fix_oop_relocations for scavengeable nmethods
never
parents:
2360
diff
changeset
|
1070 while (iter.next()) { |
|
d673ef06fe96
7028374: race in fix_oop_relocations for scavengeable nmethods
never
parents:
2360
diff
changeset
|
1071 if (iter.type() == relocInfo::oop_type) { |
|
d673ef06fe96
7028374: race in fix_oop_relocations for scavengeable nmethods
never
parents:
2360
diff
changeset
|
1072 oop_Relocation* reloc = iter.oop_reloc(); |
|
d673ef06fe96
7028374: race in fix_oop_relocations for scavengeable nmethods
never
parents:
2360
diff
changeset
|
1073 if (!reloc->oop_is_immediate()) { |
|
d673ef06fe96
7028374: race in fix_oop_relocations for scavengeable nmethods
never
parents:
2360
diff
changeset
|
1074 reloc->verify_oop_relocation(); |
|
d673ef06fe96
7028374: race in fix_oop_relocations for scavengeable nmethods
never
parents:
2360
diff
changeset
|
1075 } |
|
d673ef06fe96
7028374: race in fix_oop_relocations for scavengeable nmethods
never
parents:
2360
diff
changeset
|
1076 } |
|
d673ef06fe96
7028374: race in fix_oop_relocations for scavengeable nmethods
never
parents:
2360
diff
changeset
|
1077 } |
|
d673ef06fe96
7028374: race in fix_oop_relocations for scavengeable nmethods
never
parents:
2360
diff
changeset
|
1078 } |
|
d673ef06fe96
7028374: race in fix_oop_relocations for scavengeable nmethods
never
parents:
2360
diff
changeset
|
1079 |
|
d673ef06fe96
7028374: race in fix_oop_relocations for scavengeable nmethods
never
parents:
2360
diff
changeset
|
1080 |
| 0 | 1081 ScopeDesc* nmethod::scope_desc_at(address pc) { |
| 1082 PcDesc* pd = pc_desc_at(pc); | |
| 1083 guarantee(pd != NULL, "scope must be present"); | |
| 1084 return new ScopeDesc(this, pd->scope_decode_offset(), | |
|
1253
f70b0d9ab095
6910618: C2: Error: assert(d->is_oop(),"JVM_ArrayCopy: dst not an oop")
kvn
parents:
1250
diff
changeset
|
1085 pd->obj_decode_offset(), pd->should_reexecute(), |
|
f70b0d9ab095
6910618: C2: Error: assert(d->is_oop(),"JVM_ArrayCopy: dst not an oop")
kvn
parents:
1250
diff
changeset
|
1086 pd->return_oop()); |
| 0 | 1087 } |
| 1088 | |
| 1089 | |
| 1090 void nmethod::clear_inline_caches() { | |
| 1091 assert(SafepointSynchronize::is_at_safepoint(), "cleaning of IC's only allowed at safepoint"); | |
| 1092 if (is_zombie()) { | |
| 1093 return; | |
| 1094 } | |
| 1095 | |
| 1096 RelocIterator iter(this); | |
| 1097 while (iter.next()) { | |
| 1098 iter.reloc()->clear_inline_cache(); | |
| 1099 } | |
| 1100 } | |
| 1101 | |
| 1102 | |
| 1103 void nmethod::cleanup_inline_caches() { | |
| 1104 | |
|
1538
bfe29ec02863
6950075: nmethod sweeper should operate concurrently
never
parents:
1490
diff
changeset
|
1105 assert_locked_or_safepoint(CompiledIC_lock); |
| 0 | 1106 |
| 1107 // If the method is not entrant or zombie then a JMP is plastered over the | |
| 1108 // first few bytes. If an oop in the old code was there, that oop | |
| 1109 // should not get GC'd. Skip the first few bytes of oops on | |
| 1110 // not-entrant methods. | |
| 1111 address low_boundary = verified_entry_point(); | |
| 1112 if (!is_in_use()) { | |
| 1113 low_boundary += NativeJump::instruction_size; | |
| 1114 // %%% Note: On SPARC we patch only a 4-byte trap, not a full NativeJump. | |
| 1115 // This means that the low_boundary is going to be a little too high. | |
| 1116 // This shouldn't matter, since oops of non-entrant methods are never used. | |
| 1117 // In fact, why are we bothering to look at oops in a non-entrant method?? | |
| 1118 } | |
| 1119 | |
| 1120 // Find all calls in an nmethod, and clear the ones that points to zombie methods | |
| 1121 ResourceMark rm; | |
| 1122 RelocIterator iter(this, low_boundary); | |
| 1123 while(iter.next()) { | |
| 1124 switch(iter.type()) { | |
| 1125 case relocInfo::virtual_call_type: | |
| 1126 case relocInfo::opt_virtual_call_type: { | |
| 1127 CompiledIC *ic = CompiledIC_at(iter.reloc()); | |
| 1128 // Ok, to lookup references to zombies here | |
| 1129 CodeBlob *cb = CodeCache::find_blob_unsafe(ic->ic_destination()); | |
| 1130 if( cb != NULL && cb->is_nmethod() ) { | |
| 1131 nmethod* nm = (nmethod*)cb; | |
| 1132 // Clean inline caches pointing to both zombie and not_entrant methods | |
| 1202 | 1133 if (!nm->is_in_use() || (nm->method()->code() != nm)) ic->set_to_clean(); |
| 0 | 1134 } |
| 1135 break; | |
| 1136 } | |
| 1137 case relocInfo::static_call_type: { | |
| 1138 CompiledStaticCall *csc = compiledStaticCall_at(iter.reloc()); | |
| 1139 CodeBlob *cb = CodeCache::find_blob_unsafe(csc->destination()); | |
| 1140 if( cb != NULL && cb->is_nmethod() ) { | |
| 1141 nmethod* nm = (nmethod*)cb; | |
| 1142 // Clean inline caches pointing to both zombie and not_entrant methods | |
| 1202 | 1143 if (!nm->is_in_use() || (nm->method()->code() != nm)) csc->set_to_clean(); |
| 0 | 1144 } |
| 1145 break; | |
| 1146 } | |
| 1147 } | |
| 1148 } | |
| 1149 } | |
| 1150 | |
|
989
148e5441d916
6863023: need non-perm oops in code cache for JSR 292
jrose
parents:
931
diff
changeset
|
1151 // This is a private interface with the sweeper. |
| 0 | 1152 void nmethod::mark_as_seen_on_stack() { |
| 1153 assert(is_not_entrant(), "must be a non-entrant method"); | |
|
1644
2a47bd84841f
6965184: possible races in make_not_entrant_or_zombie
never
parents:
1616
diff
changeset
|
1154 // Set the traversal mark to ensure that the sweeper does 2 |
|
2a47bd84841f
6965184: possible races in make_not_entrant_or_zombie
never
parents:
1616
diff
changeset
|
1155 // cleaning passes before moving to zombie. |
| 0 | 1156 set_stack_traversal_mark(NMethodSweeper::traversal_count()); |
| 1157 } | |
| 1158 | |
|
2342
46a56fac55c7
7024970: 2/3 assert(ServiceThread::is_service_thread(Thread::current())) failed: Service thread must post enqueue
dcubed
parents:
2321
diff
changeset
|
1159 // Tell if a non-entrant method can be converted to a zombie (i.e., |
|
46a56fac55c7
7024970: 2/3 assert(ServiceThread::is_service_thread(Thread::current())) failed: Service thread must post enqueue
dcubed
parents:
2321
diff
changeset
|
1160 // there are no activations on the stack, not in use by the VM, |
|
46a56fac55c7
7024970: 2/3 assert(ServiceThread::is_service_thread(Thread::current())) failed: Service thread must post enqueue
dcubed
parents:
2321
diff
changeset
|
1161 // and not in use by the ServiceThread) |
| 0 | 1162 bool nmethod::can_not_entrant_be_converted() { |
| 1163 assert(is_not_entrant(), "must be a non-entrant method"); | |
| 1164 | |
| 1165 // Since the nmethod sweeper only does partial sweep the sweeper's traversal | |
| 1166 // count can be greater than the stack traversal count before it hits the | |
| 1167 // nmethod for the second time. | |
|
2342
46a56fac55c7
7024970: 2/3 assert(ServiceThread::is_service_thread(Thread::current())) failed: Service thread must post enqueue
dcubed
parents:
2321
diff
changeset
|
1168 return stack_traversal_mark()+1 < NMethodSweeper::traversal_count() && |
|
46a56fac55c7
7024970: 2/3 assert(ServiceThread::is_service_thread(Thread::current())) failed: Service thread must post enqueue
dcubed
parents:
2321
diff
changeset
|
1169 !is_locked_by_vm(); |
| 0 | 1170 } |
| 1171 | |
| 1172 void nmethod::inc_decompile_count() { | |
| 1783 | 1173 if (!is_compiled_by_c2()) return; |
| 0 | 1174 // Could be gated by ProfileTraps, but do not bother... |
| 1175 methodOop m = method(); | |
| 1176 if (m == NULL) return; | |
| 1177 methodDataOop mdo = m->method_data(); | |
| 1178 if (mdo == NULL) return; | |
| 1179 // There is a benign race here. See comments in methodDataOop.hpp. | |
| 1180 mdo->inc_decompile_count(); | |
| 1181 } | |
| 1182 | |
| 1183 void nmethod::make_unloaded(BoolObjectClosure* is_alive, oop cause) { | |
| 1184 | |
| 1185 post_compiled_method_unload(); | |
| 1186 | |
| 1187 // Since this nmethod is being unloaded, make sure that dependencies | |
| 1188 // recorded in instanceKlasses get flushed and pass non-NULL closure to | |
| 1189 // indicate that this work is being done during a GC. | |
| 1190 assert(Universe::heap()->is_gc_active(), "should only be called during gc"); | |
| 1191 assert(is_alive != NULL, "Should be non-NULL"); | |
| 1192 // A non-NULL is_alive closure indicates that this is being called during GC. | |
| 1193 flush_dependencies(is_alive); | |
| 1194 | |
| 1195 // Break cycle between nmethod & method | |
| 1196 if (TraceClassUnloading && WizardMode) { | |
| 1197 tty->print_cr("[Class unloading: Making nmethod " INTPTR_FORMAT | |
| 1198 " unloadable], methodOop(" INTPTR_FORMAT | |
| 1199 "), cause(" INTPTR_FORMAT ")", | |
| 1200 this, (address)_method, (address)cause); | |
|
989
148e5441d916
6863023: need non-perm oops in code cache for JSR 292
jrose
parents:
931
diff
changeset
|
1201 if (!Universe::heap()->is_gc_active()) |
|
148e5441d916
6863023: need non-perm oops in code cache for JSR 292
jrose
parents:
931
diff
changeset
|
1202 cause->klass()->print(); |
| 0 | 1203 } |
| 941 | 1204 // Unlink the osr method, so we do not look this up again |
| 1205 if (is_osr_method()) { | |
| 1206 invalidate_osr_method(); | |
| 1207 } | |
| 0 | 1208 // If _method is already NULL the methodOop is about to be unloaded, |
| 1209 // so we don't have to break the cycle. Note that it is possible to | |
| 1210 // have the methodOop live here, in case we unload the nmethod because | |
| 1211 // it is pointing to some oop (other than the methodOop) being unloaded. | |
| 1212 if (_method != NULL) { | |
| 1213 // OSR methods point to the methodOop, but the methodOop does not | |
| 1214 // point back! | |
| 1215 if (_method->code() == this) { | |
| 1216 _method->clear_code(); // Break a cycle | |
| 1217 } | |
| 1218 _method = NULL; // Clear the method of this dead nmethod | |
| 1219 } | |
| 1220 // Make the class unloaded - i.e., change state and notify sweeper | |
|
1538
bfe29ec02863
6950075: nmethod sweeper should operate concurrently
never
parents:
1490
diff
changeset
|
1221 assert(SafepointSynchronize::is_at_safepoint(), "must be at safepoint"); |
| 0 | 1222 if (is_in_use()) { |
| 1223 // Transitioning directly from live to unloaded -- so | |
| 1224 // we need to force a cache clean-up; remember this | |
| 1225 // for later on. | |
| 1226 CodeCache::set_needs_cache_clean(true); | |
| 1227 } | |
|
1644
2a47bd84841f
6965184: possible races in make_not_entrant_or_zombie
never
parents:
1616
diff
changeset
|
1228 _state = unloaded; |
| 0 | 1229 |
|
1109
032260830071
5057818: codecache full and compiler disabled in bigapps fastdebug run
never
parents:
994
diff
changeset
|
1230 // Log the unloading. |
|
032260830071
5057818: codecache full and compiler disabled in bigapps fastdebug run
never
parents:
994
diff
changeset
|
1231 log_state_change(); |
|
032260830071
5057818: codecache full and compiler disabled in bigapps fastdebug run
never
parents:
994
diff
changeset
|
1232 |
| 0 | 1233 // The methodOop is gone at this point |
| 1234 assert(_method == NULL, "Tautology"); | |
| 1235 | |
|
989
148e5441d916
6863023: need non-perm oops in code cache for JSR 292
jrose
parents:
931
diff
changeset
|
1236 set_osr_link(NULL); |
|
148e5441d916
6863023: need non-perm oops in code cache for JSR 292
jrose
parents:
931
diff
changeset
|
1237 //set_scavenge_root_link(NULL); // done by prune_scavenge_root_nmethods |
| 0 | 1238 NMethodSweeper::notify(this); |
| 1239 } | |
| 1240 | |
| 1241 void nmethod::invalidate_osr_method() { | |
| 1242 assert(_entry_bci != InvocationEntryBci, "wrong kind of nmethod"); | |
| 1243 // Remove from list of active nmethods | |
| 1244 if (method() != NULL) | |
| 1245 instanceKlass::cast(method()->method_holder())->remove_osr_nmethod(this); | |
| 1246 // Set entry as invalid | |
| 1247 _entry_bci = InvalidOSREntryBci; | |
| 1248 } | |
| 1249 | |
|
1109
032260830071
5057818: codecache full and compiler disabled in bigapps fastdebug run
never
parents:
994
diff
changeset
|
1250 void nmethod::log_state_change() const { |
| 0 | 1251 if (LogCompilation) { |
| 1252 if (xtty != NULL) { | |
| 1253 ttyLocker ttyl; // keep the following output all in one block | |
|
1644
2a47bd84841f
6965184: possible races in make_not_entrant_or_zombie
never
parents:
1616
diff
changeset
|
1254 if (_state == unloaded) { |
|
1109
032260830071
5057818: codecache full and compiler disabled in bigapps fastdebug run
never
parents:
994
diff
changeset
|
1255 xtty->begin_elem("make_unloaded thread='" UINTX_FORMAT "'", |
|
032260830071
5057818: codecache full and compiler disabled in bigapps fastdebug run
never
parents:
994
diff
changeset
|
1256 os::current_thread_id()); |
|
032260830071
5057818: codecache full and compiler disabled in bigapps fastdebug run
never
parents:
994
diff
changeset
|
1257 } else { |
|
032260830071
5057818: codecache full and compiler disabled in bigapps fastdebug run
never
parents:
994
diff
changeset
|
1258 xtty->begin_elem("make_not_entrant thread='" UINTX_FORMAT "'%s", |
|
032260830071
5057818: codecache full and compiler disabled in bigapps fastdebug run
never
parents:
994
diff
changeset
|
1259 os::current_thread_id(), |
|
1644
2a47bd84841f
6965184: possible races in make_not_entrant_or_zombie
never
parents:
1616
diff
changeset
|
1260 (_state == zombie ? " zombie='1'" : "")); |
|
1109
032260830071
5057818: codecache full and compiler disabled in bigapps fastdebug run
never
parents:
994
diff
changeset
|
1261 } |
| 0 | 1262 log_identity(xtty); |
| 1263 xtty->stamp(); | |
| 1264 xtty->end_elem(); | |
| 1265 } | |
| 1266 } | |
|
1644
2a47bd84841f
6965184: possible races in make_not_entrant_or_zombie
never
parents:
1616
diff
changeset
|
1267 if (PrintCompilation && _state != unloaded) { |
|
2405
3d58a4983660
7022998: JSR 292 recursive method handle calls inline themselves infinitely
twisti
parents:
2376
diff
changeset
|
1268 print_on(tty, _state == zombie ? "made zombie" : "made not entrant"); |
| 0 | 1269 } |
| 1270 } | |
| 1271 | |
| 1272 // Common functionality for both make_not_entrant and make_zombie | |
| 1141 | 1273 bool nmethod::make_not_entrant_or_zombie(unsigned int state) { |
| 0 | 1274 assert(state == zombie || state == not_entrant, "must be zombie or not_entrant"); |
|
2342
46a56fac55c7
7024970: 2/3 assert(ServiceThread::is_service_thread(Thread::current())) failed: Service thread must post enqueue
dcubed
parents:
2321
diff
changeset
|
1275 assert(!is_zombie(), "should not already be a zombie"); |
| 0 | 1276 |
|
1644
2a47bd84841f
6965184: possible races in make_not_entrant_or_zombie
never
parents:
1616
diff
changeset
|
1277 // Make sure neither the nmethod nor the method is flushed in case of a safepoint in code below. |
| 0 | 1278 nmethodLocker nml(this); |
|
1644
2a47bd84841f
6965184: possible races in make_not_entrant_or_zombie
never
parents:
1616
diff
changeset
|
1279 methodHandle the_method(method()); |
| 1726 | 1280 No_Safepoint_Verifier nsv; |
| 0 | 1281 |
| 1282 { | |
|
1109
032260830071
5057818: codecache full and compiler disabled in bigapps fastdebug run
never
parents:
994
diff
changeset
|
1283 // invalidate osr nmethod before acquiring the patching lock since |
|
032260830071
5057818: codecache full and compiler disabled in bigapps fastdebug run
never
parents:
994
diff
changeset
|
1284 // they both acquire leaf locks and we don't want a deadlock. |
|
032260830071
5057818: codecache full and compiler disabled in bigapps fastdebug run
never
parents:
994
diff
changeset
|
1285 // This logic is equivalent to the logic below for patching the |
|
032260830071
5057818: codecache full and compiler disabled in bigapps fastdebug run
never
parents:
994
diff
changeset
|
1286 // verified entry point of regular methods. |
|
032260830071
5057818: codecache full and compiler disabled in bigapps fastdebug run
never
parents:
994
diff
changeset
|
1287 if (is_osr_method()) { |
|
032260830071
5057818: codecache full and compiler disabled in bigapps fastdebug run
never
parents:
994
diff
changeset
|
1288 // this effectively makes the osr nmethod not entrant |
|
032260830071
5057818: codecache full and compiler disabled in bigapps fastdebug run
never
parents:
994
diff
changeset
|
1289 invalidate_osr_method(); |
|
032260830071
5057818: codecache full and compiler disabled in bigapps fastdebug run
never
parents:
994
diff
changeset
|
1290 } |
|
032260830071
5057818: codecache full and compiler disabled in bigapps fastdebug run
never
parents:
994
diff
changeset
|
1291 |
| 0 | 1292 // Enter critical section. Does not block for safepoint. |
| 1293 MutexLockerEx pl(Patching_lock, Mutex::_no_safepoint_check_flag); | |
|
1109
032260830071
5057818: codecache full and compiler disabled in bigapps fastdebug run
never
parents:
994
diff
changeset
|
1294 |
|
1644
2a47bd84841f
6965184: possible races in make_not_entrant_or_zombie
never
parents:
1616
diff
changeset
|
1295 if (_state == state) { |
|
1109
032260830071
5057818: codecache full and compiler disabled in bigapps fastdebug run
never
parents:
994
diff
changeset
|
1296 // another thread already performed this transition so nothing |
|
032260830071
5057818: codecache full and compiler disabled in bigapps fastdebug run
never
parents:
994
diff
changeset
|
1297 // to do, but return false to indicate this. |
|
032260830071
5057818: codecache full and compiler disabled in bigapps fastdebug run
never
parents:
994
diff
changeset
|
1298 return false; |
|
032260830071
5057818: codecache full and compiler disabled in bigapps fastdebug run
never
parents:
994
diff
changeset
|
1299 } |
|
032260830071
5057818: codecache full and compiler disabled in bigapps fastdebug run
never
parents:
994
diff
changeset
|
1300 |
| 0 | 1301 // The caller can be calling the method statically or through an inline |
| 1302 // cache call. | |
|
1109
032260830071
5057818: codecache full and compiler disabled in bigapps fastdebug run
never
parents:
994
diff
changeset
|
1303 if (!is_osr_method() && !is_not_entrant()) { |
| 0 | 1304 NativeJump::patch_verified_entry(entry_point(), verified_entry_point(), |
| 1305 SharedRuntime::get_handle_wrong_method_stub()); | |
| 1306 } | |
| 1307 | |
|
1644
2a47bd84841f
6965184: possible races in make_not_entrant_or_zombie
never
parents:
1616
diff
changeset
|
1308 if (is_in_use()) { |
|
2a47bd84841f
6965184: possible races in make_not_entrant_or_zombie
never
parents:
1616
diff
changeset
|
1309 // It's a true state change, so mark the method as decompiled. |
|
2a47bd84841f
6965184: possible races in make_not_entrant_or_zombie
never
parents:
1616
diff
changeset
|
1310 // Do it only for transition from alive. |
|
2a47bd84841f
6965184: possible races in make_not_entrant_or_zombie
never
parents:
1616
diff
changeset
|
1311 inc_decompile_count(); |
|
2a47bd84841f
6965184: possible races in make_not_entrant_or_zombie
never
parents:
1616
diff
changeset
|
1312 } |
|
1206
87684f1a88b5
6614597: Performance variability in jvm2008 xml.validation
kvn
parents:
1204
diff
changeset
|
1313 |
| 0 | 1314 // Change state |
|
1644
2a47bd84841f
6965184: possible races in make_not_entrant_or_zombie
never
parents:
1616
diff
changeset
|
1315 _state = state; |
|
1109
032260830071
5057818: codecache full and compiler disabled in bigapps fastdebug run
never
parents:
994
diff
changeset
|
1316 |
|
032260830071
5057818: codecache full and compiler disabled in bigapps fastdebug run
never
parents:
994
diff
changeset
|
1317 // Log the transition once |
|
032260830071
5057818: codecache full and compiler disabled in bigapps fastdebug run
never
parents:
994
diff
changeset
|
1318 log_state_change(); |
|
032260830071
5057818: codecache full and compiler disabled in bigapps fastdebug run
never
parents:
994
diff
changeset
|
1319 |
|
1644
2a47bd84841f
6965184: possible races in make_not_entrant_or_zombie
never
parents:
1616
diff
changeset
|
1320 // Remove nmethod from method. |
|
2a47bd84841f
6965184: possible races in make_not_entrant_or_zombie
never
parents:
1616
diff
changeset
|
1321 // We need to check if both the _code and _from_compiled_code_entry_point |
|
2a47bd84841f
6965184: possible races in make_not_entrant_or_zombie
never
parents:
1616
diff
changeset
|
1322 // refer to this nmethod because there is a race in setting these two fields |
|
2a47bd84841f
6965184: possible races in make_not_entrant_or_zombie
never
parents:
1616
diff
changeset
|
1323 // in methodOop as seen in bugid 4947125. |
|
2a47bd84841f
6965184: possible races in make_not_entrant_or_zombie
never
parents:
1616
diff
changeset
|
1324 // If the vep() points to the zombie nmethod, the memory for the nmethod |
|
2a47bd84841f
6965184: possible races in make_not_entrant_or_zombie
never
parents:
1616
diff
changeset
|
1325 // could be flushed and the compiler and vtable stubs could still call |
|
2a47bd84841f
6965184: possible races in make_not_entrant_or_zombie
never
parents:
1616
diff
changeset
|
1326 // through it. |
|
2a47bd84841f
6965184: possible races in make_not_entrant_or_zombie
never
parents:
1616
diff
changeset
|
1327 if (method() != NULL && (method()->code() == this || |
|
2a47bd84841f
6965184: possible races in make_not_entrant_or_zombie
never
parents:
1616
diff
changeset
|
1328 method()->from_compiled_entry() == verified_entry_point())) { |
|
2a47bd84841f
6965184: possible races in make_not_entrant_or_zombie
never
parents:
1616
diff
changeset
|
1329 HandleMark hm; |
|
2a47bd84841f
6965184: possible races in make_not_entrant_or_zombie
never
parents:
1616
diff
changeset
|
1330 method()->clear_code(); |
|
2a47bd84841f
6965184: possible races in make_not_entrant_or_zombie
never
parents:
1616
diff
changeset
|
1331 } |
|
2a47bd84841f
6965184: possible races in make_not_entrant_or_zombie
never
parents:
1616
diff
changeset
|
1332 |
|
2a47bd84841f
6965184: possible races in make_not_entrant_or_zombie
never
parents:
1616
diff
changeset
|
1333 if (state == not_entrant) { |
|
2a47bd84841f
6965184: possible races in make_not_entrant_or_zombie
never
parents:
1616
diff
changeset
|
1334 mark_as_seen_on_stack(); |
|
2a47bd84841f
6965184: possible races in make_not_entrant_or_zombie
never
parents:
1616
diff
changeset
|
1335 } |
|
2a47bd84841f
6965184: possible races in make_not_entrant_or_zombie
never
parents:
1616
diff
changeset
|
1336 |
| 0 | 1337 } // leave critical region under Patching_lock |
| 1338 | |
|
1538
bfe29ec02863
6950075: nmethod sweeper should operate concurrently
never
parents:
1490
diff
changeset
|
1339 // When the nmethod becomes zombie it is no longer alive so the |
|
bfe29ec02863
6950075: nmethod sweeper should operate concurrently
never
parents:
1490
diff
changeset
|
1340 // dependencies must be flushed. nmethods in the not_entrant |
|
bfe29ec02863
6950075: nmethod sweeper should operate concurrently
never
parents:
1490
diff
changeset
|
1341 // state will be flushed later when the transition to zombie |
|
bfe29ec02863
6950075: nmethod sweeper should operate concurrently
never
parents:
1490
diff
changeset
|
1342 // happens or they get unloaded. |
|
bfe29ec02863
6950075: nmethod sweeper should operate concurrently
never
parents:
1490
diff
changeset
|
1343 if (state == zombie) { |
| 1726 | 1344 { |
| 1345 // Flushing dependecies must be done before any possible | |
| 1346 // safepoint can sneak in, otherwise the oops used by the | |
| 1347 // dependency logic could have become stale. | |
| 1348 MutexLockerEx mu(CodeCache_lock, Mutex::_no_safepoint_check_flag); | |
| 1349 flush_dependencies(NULL); | |
| 1350 } | |
|
1644
2a47bd84841f
6965184: possible races in make_not_entrant_or_zombie
never
parents:
1616
diff
changeset
|
1351 |
|
2342
46a56fac55c7
7024970: 2/3 assert(ServiceThread::is_service_thread(Thread::current())) failed: Service thread must post enqueue
dcubed
parents:
2321
diff
changeset
|
1352 // zombie only - if a JVMTI agent has enabled the CompiledMethodUnload |
|
46a56fac55c7
7024970: 2/3 assert(ServiceThread::is_service_thread(Thread::current())) failed: Service thread must post enqueue
dcubed
parents:
2321
diff
changeset
|
1353 // event and it hasn't already been reported for this nmethod then |
|
46a56fac55c7
7024970: 2/3 assert(ServiceThread::is_service_thread(Thread::current())) failed: Service thread must post enqueue
dcubed
parents:
2321
diff
changeset
|
1354 // 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
|
1355 // marked it for unloading). JvmtiDeferredEventQueue support means |
|
46a56fac55c7
7024970: 2/3 assert(ServiceThread::is_service_thread(Thread::current())) failed: Service thread must post enqueue
dcubed
parents:
2321
diff
changeset
|
1356 // we no longer go to a safepoint here. |
|
46a56fac55c7
7024970: 2/3 assert(ServiceThread::is_service_thread(Thread::current())) failed: Service thread must post enqueue
dcubed
parents:
2321
diff
changeset
|
1357 post_compiled_method_unload(); |
| 1726 | 1358 |
| 1359 #ifdef ASSERT | |
| 1360 // It's no longer safe to access the oops section since zombie | |
| 1361 // nmethods aren't scanned for GC. | |
| 1362 _oops_are_stale = true; | |
| 1363 #endif | |
|
1538
bfe29ec02863
6950075: nmethod sweeper should operate concurrently
never
parents:
1490
diff
changeset
|
1364 } else { |
|
bfe29ec02863
6950075: nmethod sweeper should operate concurrently
never
parents:
1490
diff
changeset
|
1365 assert(state == not_entrant, "other cases may need to be handled differently"); |
|
bfe29ec02863
6950075: nmethod sweeper should operate concurrently
never
parents:
1490
diff
changeset
|
1366 } |
|
bfe29ec02863
6950075: nmethod sweeper should operate concurrently
never
parents:
1490
diff
changeset
|
1367 |
| 0 | 1368 if (TraceCreateZombies) { |
| 1369 tty->print_cr("nmethod <" INTPTR_FORMAT "> code made %s", this, (state == not_entrant) ? "not entrant" : "zombie"); | |
| 1370 } | |
| 1371 | |
| 1372 // Make sweeper aware that there is a zombie method that needs to be removed | |
| 1373 NMethodSweeper::notify(this); | |
| 1374 | |
|
1109
032260830071
5057818: codecache full and compiler disabled in bigapps fastdebug run
never
parents:
994
diff
changeset
|
1375 return true; |
| 0 | 1376 } |
| 1377 | |
| 1378 void nmethod::flush() { | |
| 1379 // Note that there are no valid oops in the nmethod anymore. | |
| 1380 assert(is_zombie() || (is_osr_method() && is_unloaded()), "must be a zombie method"); | |
| 1381 assert(is_marked_for_reclamation() || (is_osr_method() && is_unloaded()), "must be marked for reclamation"); | |
| 1382 | |
| 1383 assert (!is_locked_by_vm(), "locked methods shouldn't be flushed"); | |
|
1538
bfe29ec02863
6950075: nmethod sweeper should operate concurrently
never
parents:
1490
diff
changeset
|
1384 assert_locked_or_safepoint(CodeCache_lock); |
| 0 | 1385 |
| 1386 // completely deallocate this method | |
|
4872
aa3d708d67c4
7141200: log some interesting information in ring buffers for crashes
never
parents:
4006
diff
changeset
|
1387 Events::log(JavaThread::current(), "flushing nmethod " INTPTR_FORMAT, this); |
| 0 | 1388 if (PrintMethodFlushing) { |
| 1202 | 1389 tty->print_cr("*flushing nmethod %3d/" INTPTR_FORMAT ". Live blobs:" UINT32_FORMAT "/Free CodeCache:" SIZE_FORMAT "Kb", |
| 1390 _compile_id, this, CodeCache::nof_blobs(), CodeCache::unallocated_capacity()/1024); | |
| 0 | 1391 } |
| 1392 | |
| 1393 // We need to deallocate any ExceptionCache data. | |
| 1394 // Note that we do not need to grab the nmethod lock for this, it | |
| 1395 // better be thread safe if we're disposing of it! | |
| 1396 ExceptionCache* ec = exception_cache(); | |
| 1397 set_exception_cache(NULL); | |
| 1398 while(ec != NULL) { | |
| 1399 ExceptionCache* next = ec->next(); | |
| 1400 delete ec; | |
| 1401 ec = next; | |
| 1402 } | |
| 1403 | |
|
989
148e5441d916
6863023: need non-perm oops in code cache for JSR 292
jrose
parents:
931
diff
changeset
|
1404 if (on_scavenge_root_list()) { |
|
148e5441d916
6863023: need non-perm oops in code cache for JSR 292
jrose
parents:
931
diff
changeset
|
1405 CodeCache::drop_scavenge_root_nmethod(this); |
|
148e5441d916
6863023: need non-perm oops in code cache for JSR 292
jrose
parents:
931
diff
changeset
|
1406 } |
|
148e5441d916
6863023: need non-perm oops in code cache for JSR 292
jrose
parents:
931
diff
changeset
|
1407 |
| 1202 | 1408 if (is_speculatively_disconnected()) { |
| 1409 CodeCache::remove_saved_code(this); | |
| 1410 } | |
| 1411 | |
| 1692 | 1412 #ifdef SHARK |
|
1845
a222fcfba398
6990549: Zero and Shark fixes after 6978355 and 6953144
twisti
parents:
1784
diff
changeset
|
1413 ((SharkCompiler *) compiler())->free_compiled_method(insts_begin()); |
| 1692 | 1414 #endif // SHARK |
| 1415 | |
| 0 | 1416 ((CodeBlob*)(this))->flush(); |
| 1417 | |
| 1418 CodeCache::free(this); | |
| 1419 } | |
| 1420 | |
| 1421 | |
| 1422 // | |
| 1423 // Notify all classes this nmethod is dependent on that it is no | |
| 1424 // longer dependent. This should only be called in two situations. | |
| 1425 // First, when a nmethod transitions to a zombie all dependents need | |
| 1426 // to be clear. Since zombification happens at a safepoint there's no | |
| 1427 // synchronization issues. The second place is a little more tricky. | |
| 1428 // During phase 1 of mark sweep class unloading may happen and as a | |
| 1429 // result some nmethods may get unloaded. In this case the flushing | |
| 1430 // of dependencies must happen during phase 1 since after GC any | |
| 1431 // dependencies in the unloaded nmethod won't be updated, so | |
| 1432 // traversing the dependency information in unsafe. In that case this | |
| 1433 // function is called with a non-NULL argument and this function only | |
| 1434 // notifies instanceKlasses that are reachable | |
| 1435 | |
| 1436 void nmethod::flush_dependencies(BoolObjectClosure* is_alive) { | |
|
1538
bfe29ec02863
6950075: nmethod sweeper should operate concurrently
never
parents:
1490
diff
changeset
|
1437 assert_locked_or_safepoint(CodeCache_lock); |
| 0 | 1438 assert(Universe::heap()->is_gc_active() == (is_alive != NULL), |
| 1439 "is_alive is non-NULL if and only if we are called during GC"); | |
| 1440 if (!has_flushed_dependencies()) { | |
| 1441 set_has_flushed_dependencies(); | |
| 1442 for (Dependencies::DepStream deps(this); deps.next(); ) { | |
| 1443 klassOop klass = deps.context_type(); | |
| 1444 if (klass == NULL) continue; // ignore things like evol_method | |
| 1445 | |
| 1446 // During GC the is_alive closure is non-NULL, and is used to | |
| 1447 // determine liveness of dependees that need to be updated. | |
| 1448 if (is_alive == NULL || is_alive->do_object_b(klass)) { | |
| 1449 instanceKlass::cast(klass)->remove_dependent_nmethod(this); | |
| 1450 } | |
| 1451 } | |
| 1452 } | |
| 1453 } | |
| 1454 | |
| 1455 | |
| 1456 // If this oop is not live, the nmethod can be unloaded. | |
| 1457 bool nmethod::can_unload(BoolObjectClosure* is_alive, | |
| 1458 OopClosure* keep_alive, | |
| 1459 oop* root, bool unloading_occurred) { | |
| 1460 assert(root != NULL, "just checking"); | |
| 1461 oop obj = *root; | |
| 1462 if (obj == NULL || is_alive->do_object_b(obj)) { | |
| 1463 return false; | |
| 1464 } | |
| 1465 if (obj->is_compiledICHolder()) { | |
| 1466 compiledICHolderOop cichk_oop = compiledICHolderOop(obj); | |
| 1467 if (is_alive->do_object_b( | |
| 1468 cichk_oop->holder_method()->method_holder()) && | |
| 1469 is_alive->do_object_b(cichk_oop->holder_klass())) { | |
| 1470 // The oop should be kept alive | |
| 1471 keep_alive->do_oop(root); | |
| 1472 return false; | |
| 1473 } | |
| 1474 } | |
|
989
148e5441d916
6863023: need non-perm oops in code cache for JSR 292
jrose
parents:
931
diff
changeset
|
1475 // 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
|
1476 // 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
|
1477 // 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
|
1478 assert(unloading_occurred || ScavengeRootsInCode, "Inconsistency in unloading"); |
| 0 | 1479 make_unloaded(is_alive, obj); |
| 1480 return true; | |
| 1481 } | |
| 1482 | |
| 1483 // ------------------------------------------------------------------ | |
| 1484 // post_compiled_method_load_event | |
| 1485 // new method for install_code() path | |
| 1486 // Transfer information from compilation to jvmti | |
| 1487 void nmethod::post_compiled_method_load_event() { | |
| 1488 | |
| 1489 methodOop moop = method(); | |
| 4006 | 1490 #ifndef USDT2 |
| 0 | 1491 HS_DTRACE_PROBE8(hotspot, compiled__method__load, |
| 1492 moop->klass_name()->bytes(), | |
| 1493 moop->klass_name()->utf8_length(), | |
| 1494 moop->name()->bytes(), | |
| 1495 moop->name()->utf8_length(), | |
| 1496 moop->signature()->bytes(), | |
| 1497 moop->signature()->utf8_length(), | |
| 1748 | 1498 insts_begin(), insts_size()); |
| 4006 | 1499 #else /* USDT2 */ |
| 1500 HOTSPOT_COMPILED_METHOD_LOAD( | |
| 1501 (char *) moop->klass_name()->bytes(), | |
| 1502 moop->klass_name()->utf8_length(), | |
| 1503 (char *) moop->name()->bytes(), | |
| 1504 moop->name()->utf8_length(), | |
| 1505 (char *) moop->signature()->bytes(), | |
| 1506 moop->signature()->utf8_length(), | |
| 1507 insts_begin(), insts_size()); | |
| 1508 #endif /* USDT2 */ | |
| 0 | 1509 |
|
1616
38e8278318ca
6656830: assert((*p)->is_oop(),"expected an oop while scanning weak refs")
never
parents:
1602
diff
changeset
|
1510 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
|
1511 JvmtiExport::should_post_compiled_method_unload()) { |
|
38e8278318ca
6656830: assert((*p)->is_oop(),"expected an oop while scanning weak refs")
never
parents:
1602
diff
changeset
|
1512 get_and_cache_jmethod_id(); |
|
38e8278318ca
6656830: assert((*p)->is_oop(),"expected an oop while scanning weak refs")
never
parents:
1602
diff
changeset
|
1513 } |
|
38e8278318ca
6656830: assert((*p)->is_oop(),"expected an oop while scanning weak refs")
never
parents:
1602
diff
changeset
|
1514 |
| 0 | 1515 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
|
1516 // 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
|
1517 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
|
1518 JvmtiDeferredEventQueue::enqueue( |
|
bf8517f4e4d0
6766644: Redefinition of compiled method fails with assertion "Can not load classes with the Compiler thread"
kamg
parents:
2177
diff
changeset
|
1519 JvmtiDeferredEvent::compiled_method_load_event(this)); |
| 0 | 1520 } |
| 1521 } | |
| 1522 | |
|
1616
38e8278318ca
6656830: assert((*p)->is_oop(),"expected an oop while scanning weak refs")
never
parents:
1602
diff
changeset
|
1523 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
|
1524 if (_jmethod_id == NULL) { |
|
38e8278318ca
6656830: assert((*p)->is_oop(),"expected an oop while scanning weak refs")
never
parents:
1602
diff
changeset
|
1525 // 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
|
1526 // 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
|
1527 _jmethod_id = method()->jmethod_id(); |
|
38e8278318ca
6656830: assert((*p)->is_oop(),"expected an oop while scanning weak refs")
never
parents:
1602
diff
changeset
|
1528 } |
|
38e8278318ca
6656830: assert((*p)->is_oop(),"expected an oop while scanning weak refs")
never
parents:
1602
diff
changeset
|
1529 return _jmethod_id; |
|
38e8278318ca
6656830: assert((*p)->is_oop(),"expected an oop while scanning weak refs")
never
parents:
1602
diff
changeset
|
1530 } |
|
38e8278318ca
6656830: assert((*p)->is_oop(),"expected an oop while scanning weak refs")
never
parents:
1602
diff
changeset
|
1531 |
| 0 | 1532 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
|
1533 if (unload_reported()) { |
|
852d0157c696
6956931: assert(SafepointSynchronize::is_at_safepoint()) failed: must be executed at a safepoint
never
parents:
1563
diff
changeset
|
1534 // 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
|
1535 // 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
|
1536 return; |
|
852d0157c696
6956931: assert(SafepointSynchronize::is_at_safepoint()) failed: must be executed at a safepoint
never
parents:
1563
diff
changeset
|
1537 } |
|
852d0157c696
6956931: assert(SafepointSynchronize::is_at_safepoint()) failed: must be executed at a safepoint
never
parents:
1563
diff
changeset
|
1538 |
| 0 | 1539 assert(_method != NULL && !is_unloaded(), "just checking"); |
| 1540 DTRACE_METHOD_UNLOAD_PROBE(method()); | |
| 1541 | |
| 1542 // 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
|
1543 // post the event. Sometime later this nmethod will be made a zombie |
|
38e8278318ca
6656830: assert((*p)->is_oop(),"expected an oop while scanning weak refs")
never
parents:
1602
diff
changeset
|
1544 // by the sweeper but the methodOop will not be valid at that point. |
|
38e8278318ca
6656830: assert((*p)->is_oop(),"expected an oop while scanning weak refs")
never
parents:
1602
diff
changeset
|
1545 // 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
|
1546 // so don't bother posting the unload. The main reason for this is |
|
38e8278318ca
6656830: assert((*p)->is_oop(),"expected an oop while scanning weak refs")
never
parents:
1602
diff
changeset
|
1547 // that the jmethodID is a weak reference to the methodOop so if |
|
38e8278318ca
6656830: assert((*p)->is_oop(),"expected an oop while scanning weak refs")
never
parents:
1602
diff
changeset
|
1548 // 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
|
1549 // ref will have been cleared. |
|
38e8278318ca
6656830: assert((*p)->is_oop(),"expected an oop while scanning weak refs")
never
parents:
1602
diff
changeset
|
1550 if (_jmethod_id != NULL && JvmtiExport::should_post_compiled_method_unload()) { |
| 0 | 1551 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
|
1552 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
|
1553 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
|
1554 _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
|
1555 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
|
1556 // 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
|
1557 // 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
|
1558 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
|
1559 } else { |
|
bf8517f4e4d0
6766644: Redefinition of compiled method fails with assertion "Can not load classes with the Compiler thread"
kamg
parents:
2177
diff
changeset
|
1560 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
|
1561 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
|
1562 } |
| 0 | 1563 } |
| 1564 | |
| 1565 // The JVMTI CompiledMethodUnload event can be enabled or disabled at | |
| 1566 // any time. As the nmethod is being unloaded now we mark it has | |
| 1567 // having the unload event reported - this will ensure that we don't | |
| 1568 // attempt to report the event in the unlikely scenario where the | |
| 1569 // event is enabled at the time the nmethod is made a zombie. | |
| 1570 set_unload_reported(); | |
| 1571 } | |
| 1572 | |
| 1573 // This is called at the end of the strong tracing/marking phase of a | |
| 1574 // GC to unload an nmethod if it contains otherwise unreachable | |
| 1575 // oops. | |
| 1576 | |
| 1577 void nmethod::do_unloading(BoolObjectClosure* is_alive, | |
| 1578 OopClosure* keep_alive, bool unloading_occurred) { | |
| 1579 // Make sure the oop's ready to receive visitors | |
| 1580 assert(!is_zombie() && !is_unloaded(), | |
| 1581 "should not call follow on zombie or unloaded nmethod"); | |
| 1582 | |
| 1583 // If the method is not entrant then a JMP is plastered over the | |
| 1584 // first few bytes. If an oop in the old code was there, that oop | |
| 1585 // should not get GC'd. Skip the first few bytes of oops on | |
| 1586 // not-entrant methods. | |
| 1587 address low_boundary = verified_entry_point(); | |
| 1588 if (is_not_entrant()) { | |
| 1589 low_boundary += NativeJump::instruction_size; | |
| 1590 // %%% Note: On SPARC we patch only a 4-byte trap, not a full NativeJump. | |
| 1591 // (See comment above.) | |
| 1592 } | |
| 1593 | |
| 1594 // The RedefineClasses() API can cause the class unloading invariant | |
| 1595 // to no longer be true. See jvmtiExport.hpp for details. | |
| 1596 // Also, leave a debugging breadcrumb in local flag. | |
| 1597 bool a_class_was_redefined = JvmtiExport::has_redefined_a_class(); | |
| 1598 if (a_class_was_redefined) { | |
| 1599 // This set of the unloading_occurred flag is done before the | |
| 1600 // call to post_compiled_method_unload() so that the unloading | |
| 1601 // of this nmethod is reported. | |
| 1602 unloading_occurred = true; | |
| 1603 } | |
| 1604 | |
| 1605 // Follow methodOop | |
| 1606 if (can_unload(is_alive, keep_alive, (oop*)&_method, unloading_occurred)) { | |
| 1607 return; | |
| 1608 } | |
| 1609 | |
| 1610 // Exception cache | |
| 1611 ExceptionCache* ec = exception_cache(); | |
| 1612 while (ec != NULL) { | |
| 1613 oop* ex_addr = (oop*)ec->exception_type_addr(); | |
| 1614 oop ex = *ex_addr; | |
| 1615 ExceptionCache* next_ec = ec->next(); | |
| 1616 if (ex != NULL && !is_alive->do_object_b(ex)) { | |
| 1617 assert(!ex->is_compiledICHolder(), "Possible error here"); | |
| 1618 remove_from_exception_cache(ec); | |
| 1619 } | |
| 1620 ec = next_ec; | |
| 1621 } | |
| 1622 | |
| 1623 // If class unloading occurred we first iterate over all inline caches and | |
| 1624 // clear ICs where the cached oop is referring to an unloaded klass or method. | |
| 1625 // The remaining live cached oops will be traversed in the relocInfo::oop_type | |
| 1626 // iteration below. | |
| 1627 if (unloading_occurred) { | |
| 1628 RelocIterator iter(this, low_boundary); | |
| 1629 while(iter.next()) { | |
| 1630 if (iter.type() == relocInfo::virtual_call_type) { | |
| 1631 CompiledIC *ic = CompiledIC_at(iter.reloc()); | |
| 1632 oop ic_oop = ic->cached_oop(); | |
| 1633 if (ic_oop != NULL && !is_alive->do_object_b(ic_oop)) { | |
| 1634 // The only exception is compiledICHolder oops which may | |
| 1635 // yet be marked below. (We check this further below). | |
| 1636 if (ic_oop->is_compiledICHolder()) { | |
| 1637 compiledICHolderOop cichk_oop = compiledICHolderOop(ic_oop); | |
| 1638 if (is_alive->do_object_b( | |
| 1639 cichk_oop->holder_method()->method_holder()) && | |
| 1640 is_alive->do_object_b(cichk_oop->holder_klass())) { | |
| 1641 continue; | |
| 1642 } | |
| 1643 } | |
| 1644 ic->set_to_clean(); | |
|
1489
cff162798819
6888953: some calls to function-like macros are missing semicolons
jcoomes
parents:
1378
diff
changeset
|
1645 assert(ic->cached_oop() == NULL, |
|
cff162798819
6888953: some calls to function-like macros are missing semicolons
jcoomes
parents:
1378
diff
changeset
|
1646 "cached oop in IC should be cleared"); |
| 0 | 1647 } |
| 1648 } | |
| 1649 } | |
| 1650 } | |
| 1651 | |
| 1652 // Compiled code | |
| 1653 RelocIterator iter(this, low_boundary); | |
| 1654 while (iter.next()) { | |
| 1655 if (iter.type() == relocInfo::oop_type) { | |
| 1656 oop_Relocation* r = iter.oop_reloc(); | |
| 1657 // In this loop, we must only traverse those oops directly embedded in | |
| 1658 // the code. Other oops (oop_index>0) are seen as part of scopes_oops. | |
| 1659 assert(1 == (r->oop_is_immediate()) + | |
| 1660 (r->oop_addr() >= oops_begin() && r->oop_addr() < oops_end()), | |
| 1661 "oop must be found in exactly one place"); | |
| 1662 if (r->oop_is_immediate() && r->oop_value() != NULL) { | |
| 1663 if (can_unload(is_alive, keep_alive, r->oop_addr(), unloading_occurred)) { | |
| 1664 return; | |
| 1665 } | |
| 1666 } | |
| 1667 } | |
| 1668 } | |
| 1669 | |
| 1670 | |
| 1671 // Scopes | |
| 1672 for (oop* p = oops_begin(); p < oops_end(); p++) { | |
| 1673 if (*p == Universe::non_oop_word()) continue; // skip non-oops | |
| 1674 if (can_unload(is_alive, keep_alive, p, unloading_occurred)) { | |
| 1675 return; | |
| 1676 } | |
| 1677 } | |
| 1678 | |
| 1679 #ifndef PRODUCT | |
| 1680 // This nmethod was not unloaded; check below that all CompiledICs | |
| 1681 // refer to marked oops. | |
| 1682 { | |
| 1683 RelocIterator iter(this, low_boundary); | |
| 1684 while (iter.next()) { | |
| 1685 if (iter.type() == relocInfo::virtual_call_type) { | |
| 1686 CompiledIC *ic = CompiledIC_at(iter.reloc()); | |
| 1687 oop ic_oop = ic->cached_oop(); | |
| 1688 assert(ic_oop == NULL || is_alive->do_object_b(ic_oop), | |
| 1689 "Found unmarked ic_oop in reachable nmethod"); | |
| 1690 } | |
| 1691 } | |
| 1692 } | |
| 1693 #endif // !PRODUCT | |
| 1694 } | |
| 1695 | |
| 941 | 1696 // This method is called twice during GC -- once while |
| 1697 // tracing the "active" nmethods on thread stacks during | |
| 1698 // the (strong) marking phase, and then again when walking | |
| 1699 // the code cache contents during the weak roots processing | |
| 1700 // phase. The two uses are distinguished by means of the | |
|
994
753cf9794df9
6885169: merge of 4957990 and 6863023 causes conflict on do_nmethods
jrose
parents:
993
diff
changeset
|
1701 // 'do_strong_roots_only' flag, which is true in the first |
| 941 | 1702 // case. We want to walk the weak roots in the nmethod |
| 1703 // only in the second case. The weak roots in the nmethod | |
| 1704 // are the oops in the ExceptionCache and the InlineCache | |
| 1705 // oops. | |
|
994
753cf9794df9
6885169: merge of 4957990 and 6863023 causes conflict on do_nmethods
jrose
parents:
993
diff
changeset
|
1706 void nmethod::oops_do(OopClosure* f, bool do_strong_roots_only) { |
| 0 | 1707 // make sure the oops ready to receive visitors |
| 1708 assert(!is_zombie() && !is_unloaded(), | |
| 1709 "should not call follow on zombie or unloaded nmethod"); | |
| 1710 | |
| 1711 // If the method is not entrant or zombie then a JMP is plastered over the | |
| 1712 // first few bytes. If an oop in the old code was there, that oop | |
| 1713 // should not get GC'd. Skip the first few bytes of oops on | |
| 1714 // not-entrant methods. | |
| 1715 address low_boundary = verified_entry_point(); | |
| 1716 if (is_not_entrant()) { | |
| 1717 low_boundary += NativeJump::instruction_size; | |
| 1718 // %%% Note: On SPARC we patch only a 4-byte trap, not a full NativeJump. | |
| 1719 // (See comment above.) | |
| 1720 } | |
| 1721 | |
| 1722 // Compiled code | |
| 1723 f->do_oop((oop*) &_method); | |
|
994
753cf9794df9
6885169: merge of 4957990 and 6863023 causes conflict on do_nmethods
jrose
parents:
993
diff
changeset
|
1724 if (!do_strong_roots_only) { |
| 941 | 1725 // weak roots processing phase -- update ExceptionCache oops |
| 1726 ExceptionCache* ec = exception_cache(); | |
| 1727 while(ec != NULL) { | |
| 1728 f->do_oop((oop*)ec->exception_type_addr()); | |
| 1729 ec = ec->next(); | |
| 1730 } | |
| 1731 } // Else strong roots phase -- skip oops in ExceptionCache | |
| 0 | 1732 |
| 1733 RelocIterator iter(this, low_boundary); | |
| 941 | 1734 |
| 0 | 1735 while (iter.next()) { |
| 1736 if (iter.type() == relocInfo::oop_type ) { | |
| 1737 oop_Relocation* r = iter.oop_reloc(); | |
| 1738 // In this loop, we must only follow those oops directly embedded in | |
| 1739 // the code. Other oops (oop_index>0) are seen as part of scopes_oops. | |
| 941 | 1740 assert(1 == (r->oop_is_immediate()) + |
| 1741 (r->oop_addr() >= oops_begin() && r->oop_addr() < oops_end()), | |
| 1742 "oop must be found in exactly one place"); | |
| 0 | 1743 if (r->oop_is_immediate() && r->oop_value() != NULL) { |
| 1744 f->do_oop(r->oop_addr()); | |
| 1745 } | |
| 1746 } | |
| 1747 } | |
| 1748 | |
| 1749 // Scopes | |
|
989
148e5441d916
6863023: need non-perm oops in code cache for JSR 292
jrose
parents:
931
diff
changeset
|
1750 // This includes oop constants not inlined in the code stream. |
| 0 | 1751 for (oop* p = oops_begin(); p < oops_end(); p++) { |
| 1752 if (*p == Universe::non_oop_word()) continue; // skip non-oops | |
| 1753 f->do_oop(p); | |
| 1754 } | |
| 1755 } | |
| 1756 | |
|
989
148e5441d916
6863023: need non-perm oops in code cache for JSR 292
jrose
parents:
931
diff
changeset
|
1757 #define NMETHOD_SENTINEL ((nmethod*)badAddress) |
|
148e5441d916
6863023: need non-perm oops in code cache for JSR 292
jrose
parents:
931
diff
changeset
|
1758 |
|
148e5441d916
6863023: need non-perm oops in code cache for JSR 292
jrose
parents:
931
diff
changeset
|
1759 nmethod* volatile nmethod::_oops_do_mark_nmethods; |
|
148e5441d916
6863023: need non-perm oops in code cache for JSR 292
jrose
parents:
931
diff
changeset
|
1760 |
|
148e5441d916
6863023: need non-perm oops in code cache for JSR 292
jrose
parents:
931
diff
changeset
|
1761 // An nmethod is "marked" if its _mark_link is set non-null. |
|
148e5441d916
6863023: need non-perm oops in code cache for JSR 292
jrose
parents:
931
diff
changeset
|
1762 // Even if it is the end of the linked list, it will have a non-null link value, |
|
148e5441d916
6863023: need non-perm oops in code cache for JSR 292
jrose
parents:
931
diff
changeset
|
1763 // as long as it is on the list. |
|
148e5441d916
6863023: need non-perm oops in code cache for JSR 292
jrose
parents:
931
diff
changeset
|
1764 // This code must be MP safe, because it is used from parallel GC passes. |
|
148e5441d916
6863023: need non-perm oops in code cache for JSR 292
jrose
parents:
931
diff
changeset
|
1765 bool nmethod::test_set_oops_do_mark() { |
|
148e5441d916
6863023: need non-perm oops in code cache for JSR 292
jrose
parents:
931
diff
changeset
|
1766 assert(nmethod::oops_do_marking_is_active(), "oops_do_marking_prologue must be called"); |
|
148e5441d916
6863023: need non-perm oops in code cache for JSR 292
jrose
parents:
931
diff
changeset
|
1767 nmethod* observed_mark_link = _oops_do_mark_link; |
|
148e5441d916
6863023: need non-perm oops in code cache for JSR 292
jrose
parents:
931
diff
changeset
|
1768 if (observed_mark_link == NULL) { |
|
148e5441d916
6863023: need non-perm oops in code cache for JSR 292
jrose
parents:
931
diff
changeset
|
1769 // Claim this nmethod for this thread to mark. |
|
148e5441d916
6863023: need non-perm oops in code cache for JSR 292
jrose
parents:
931
diff
changeset
|
1770 observed_mark_link = (nmethod*) |
|
148e5441d916
6863023: need non-perm oops in code cache for JSR 292
jrose
parents:
931
diff
changeset
|
1771 Atomic::cmpxchg_ptr(NMETHOD_SENTINEL, &_oops_do_mark_link, NULL); |
|
148e5441d916
6863023: need non-perm oops in code cache for JSR 292
jrose
parents:
931
diff
changeset
|
1772 if (observed_mark_link == NULL) { |
|
148e5441d916
6863023: need non-perm oops in code cache for JSR 292
jrose
parents:
931
diff
changeset
|
1773 |
|
148e5441d916
6863023: need non-perm oops in code cache for JSR 292
jrose
parents:
931
diff
changeset
|
1774 // Atomically append this nmethod (now claimed) to the head of the list: |
|
148e5441d916
6863023: need non-perm oops in code cache for JSR 292
jrose
parents:
931
diff
changeset
|
1775 nmethod* observed_mark_nmethods = _oops_do_mark_nmethods; |
|
148e5441d916
6863023: need non-perm oops in code cache for JSR 292
jrose
parents:
931
diff
changeset
|
1776 for (;;) { |
|
148e5441d916
6863023: need non-perm oops in code cache for JSR 292
jrose
parents:
931
diff
changeset
|
1777 nmethod* required_mark_nmethods = observed_mark_nmethods; |
|
148e5441d916
6863023: need non-perm oops in code cache for JSR 292
jrose
parents:
931
diff
changeset
|
1778 _oops_do_mark_link = required_mark_nmethods; |
|
148e5441d916
6863023: need non-perm oops in code cache for JSR 292
jrose
parents:
931
diff
changeset
|
1779 observed_mark_nmethods = (nmethod*) |
|
148e5441d916
6863023: need non-perm oops in code cache for JSR 292
jrose
parents:
931
diff
changeset
|
1780 Atomic::cmpxchg_ptr(this, &_oops_do_mark_nmethods, required_mark_nmethods); |
|
148e5441d916
6863023: need non-perm oops in code cache for JSR 292
jrose
parents:
931
diff
changeset
|
1781 if (observed_mark_nmethods == required_mark_nmethods) |
|
148e5441d916
6863023: need non-perm oops in code cache for JSR 292
jrose
parents:
931
diff
changeset
|
1782 break; |
|
148e5441d916
6863023: need non-perm oops in code cache for JSR 292
jrose
parents:
931
diff
changeset
|
1783 } |
|
148e5441d916
6863023: need non-perm oops in code cache for JSR 292
jrose
parents:
931
diff
changeset
|
1784 // Mark was clear when we first saw this guy. |
|
2405
3d58a4983660
7022998: JSR 292 recursive method handle calls inline themselves infinitely
twisti
parents:
2376
diff
changeset
|
1785 NOT_PRODUCT(if (TraceScavenge) print_on(tty, "oops_do, mark")); |
|
989
148e5441d916
6863023: need non-perm oops in code cache for JSR 292
jrose
parents:
931
diff
changeset
|
1786 return false; |
|
148e5441d916
6863023: need non-perm oops in code cache for JSR 292
jrose
parents:
931
diff
changeset
|
1787 } |
|
148e5441d916
6863023: need non-perm oops in code cache for JSR 292
jrose
parents:
931
diff
changeset
|
1788 } |
|
148e5441d916
6863023: need non-perm oops in code cache for JSR 292
jrose
parents:
931
diff
changeset
|
1789 // On fall through, another racing thread marked this nmethod before we did. |
|
148e5441d916
6863023: need non-perm oops in code cache for JSR 292
jrose
parents:
931
diff
changeset
|
1790 return true; |
|
148e5441d916
6863023: need non-perm oops in code cache for JSR 292
jrose
parents:
931
diff
changeset
|
1791 } |
|
148e5441d916
6863023: need non-perm oops in code cache for JSR 292
jrose
parents:
931
diff
changeset
|
1792 |
|
148e5441d916
6863023: need non-perm oops in code cache for JSR 292
jrose
parents:
931
diff
changeset
|
1793 void nmethod::oops_do_marking_prologue() { |
|
148e5441d916
6863023: need non-perm oops in code cache for JSR 292
jrose
parents:
931
diff
changeset
|
1794 NOT_PRODUCT(if (TraceScavenge) tty->print_cr("[oops_do_marking_prologue")); |
|
148e5441d916
6863023: need non-perm oops in code cache for JSR 292
jrose
parents:
931
diff
changeset
|
1795 assert(_oops_do_mark_nmethods == NULL, "must not call oops_do_marking_prologue twice in a row"); |
|
148e5441d916
6863023: need non-perm oops in code cache for JSR 292
jrose
parents:
931
diff
changeset
|
1796 // We use cmpxchg_ptr instead of regular assignment here because the user |
|
148e5441d916
6863023: need non-perm oops in code cache for JSR 292
jrose
parents:
931
diff
changeset
|
1797 // may fork a bunch of threads, and we need them all to see the same state. |
|
148e5441d916
6863023: need non-perm oops in code cache for JSR 292
jrose
parents:
931
diff
changeset
|
1798 void* observed = Atomic::cmpxchg_ptr(NMETHOD_SENTINEL, &_oops_do_mark_nmethods, NULL); |
|
148e5441d916
6863023: need non-perm oops in code cache for JSR 292
jrose
parents:
931
diff
changeset
|
1799 guarantee(observed == NULL, "no races in this sequential code"); |
|
148e5441d916
6863023: need non-perm oops in code cache for JSR 292
jrose
parents:
931
diff
changeset
|
1800 } |
|
148e5441d916
6863023: need non-perm oops in code cache for JSR 292
jrose
parents:
931
diff
changeset
|
1801 |
|
148e5441d916
6863023: need non-perm oops in code cache for JSR 292
jrose
parents:
931
diff
changeset
|
1802 void nmethod::oops_do_marking_epilogue() { |
|
148e5441d916
6863023: need non-perm oops in code cache for JSR 292
jrose
parents:
931
diff
changeset
|
1803 assert(_oops_do_mark_nmethods != NULL, "must not call oops_do_marking_epilogue twice in a row"); |
|
148e5441d916
6863023: need non-perm oops in code cache for JSR 292
jrose
parents:
931
diff
changeset
|
1804 nmethod* cur = _oops_do_mark_nmethods; |
|
148e5441d916
6863023: need non-perm oops in code cache for JSR 292
jrose
parents:
931
diff
changeset
|
1805 while (cur != NMETHOD_SENTINEL) { |
|
148e5441d916
6863023: need non-perm oops in code cache for JSR 292
jrose
parents:
931
diff
changeset
|
1806 assert(cur != NULL, "not NULL-terminated"); |
|
148e5441d916
6863023: need non-perm oops in code cache for JSR 292
jrose
parents:
931
diff
changeset
|
1807 nmethod* next = cur->_oops_do_mark_link; |
|
148e5441d916
6863023: need non-perm oops in code cache for JSR 292
jrose
parents:
931
diff
changeset
|
1808 cur->_oops_do_mark_link = NULL; |
|
2375
d673ef06fe96
7028374: race in fix_oop_relocations for scavengeable nmethods
never
parents:
2360
diff
changeset
|
1809 cur->fix_oop_relocations(); |
|
2405
3d58a4983660
7022998: JSR 292 recursive method handle calls inline themselves infinitely
twisti
parents:
2376
diff
changeset
|
1810 NOT_PRODUCT(if (TraceScavenge) cur->print_on(tty, "oops_do, unmark")); |
|
989
148e5441d916
6863023: need non-perm oops in code cache for JSR 292
jrose
parents:
931
diff
changeset
|
1811 cur = next; |
|
148e5441d916
6863023: need non-perm oops in code cache for JSR 292
jrose
parents:
931
diff
changeset
|
1812 } |
|
148e5441d916
6863023: need non-perm oops in code cache for JSR 292
jrose
parents:
931
diff
changeset
|
1813 void* required = _oops_do_mark_nmethods; |
|
148e5441d916
6863023: need non-perm oops in code cache for JSR 292
jrose
parents:
931
diff
changeset
|
1814 void* observed = Atomic::cmpxchg_ptr(NULL, &_oops_do_mark_nmethods, required); |
|
148e5441d916
6863023: need non-perm oops in code cache for JSR 292
jrose
parents:
931
diff
changeset
|
1815 guarantee(observed == required, "no races in this sequential code"); |
|
148e5441d916
6863023: need non-perm oops in code cache for JSR 292
jrose
parents:
931
diff
changeset
|
1816 NOT_PRODUCT(if (TraceScavenge) tty->print_cr("oops_do_marking_epilogue]")); |
|
148e5441d916
6863023: need non-perm oops in code cache for JSR 292
jrose
parents:
931
diff
changeset
|
1817 } |
|
148e5441d916
6863023: need non-perm oops in code cache for JSR 292
jrose
parents:
931
diff
changeset
|
1818 |
|
148e5441d916
6863023: need non-perm oops in code cache for JSR 292
jrose
parents:
931
diff
changeset
|
1819 class DetectScavengeRoot: public OopClosure { |
|
148e5441d916
6863023: need non-perm oops in code cache for JSR 292
jrose
parents:
931
diff
changeset
|
1820 bool _detected_scavenge_root; |
|
148e5441d916
6863023: need non-perm oops in code cache for JSR 292
jrose
parents:
931
diff
changeset
|
1821 public: |
|
148e5441d916
6863023: need non-perm oops in code cache for JSR 292
jrose
parents:
931
diff
changeset
|
1822 DetectScavengeRoot() : _detected_scavenge_root(false) |
|
148e5441d916
6863023: need non-perm oops in code cache for JSR 292
jrose
parents:
931
diff
changeset
|
1823 { NOT_PRODUCT(_print_nm = NULL); } |
|
148e5441d916
6863023: need non-perm oops in code cache for JSR 292
jrose
parents:
931
diff
changeset
|
1824 bool detected_scavenge_root() { return _detected_scavenge_root; } |
|
148e5441d916
6863023: need non-perm oops in code cache for JSR 292
jrose
parents:
931
diff
changeset
|
1825 virtual void do_oop(oop* p) { |
|
148e5441d916
6863023: need non-perm oops in code cache for JSR 292
jrose
parents:
931
diff
changeset
|
1826 if ((*p) != NULL && (*p)->is_scavengable()) { |
|
148e5441d916
6863023: need non-perm oops in code cache for JSR 292
jrose
parents:
931
diff
changeset
|
1827 NOT_PRODUCT(maybe_print(p)); |
|
148e5441d916
6863023: need non-perm oops in code cache for JSR 292
jrose
parents:
931
diff
changeset
|
1828 _detected_scavenge_root = true; |
|
148e5441d916
6863023: need non-perm oops in code cache for JSR 292
jrose
parents:
931
diff
changeset
|
1829 } |
|
148e5441d916
6863023: need non-perm oops in code cache for JSR 292
jrose
parents:
931
diff
changeset
|
1830 } |
|
148e5441d916
6863023: need non-perm oops in code cache for JSR 292
jrose
parents:
931
diff
changeset
|
1831 virtual void do_oop(narrowOop* p) { ShouldNotReachHere(); } |
|
148e5441d916
6863023: need non-perm oops in code cache for JSR 292
jrose
parents:
931
diff
changeset
|
1832 |
|
148e5441d916
6863023: need non-perm oops in code cache for JSR 292
jrose
parents:
931
diff
changeset
|
1833 #ifndef PRODUCT |
|
148e5441d916
6863023: need non-perm oops in code cache for JSR 292
jrose
parents:
931
diff
changeset
|
1834 nmethod* _print_nm; |
|
148e5441d916
6863023: need non-perm oops in code cache for JSR 292
jrose
parents:
931
diff
changeset
|
1835 void maybe_print(oop* p) { |
|
148e5441d916
6863023: need non-perm oops in code cache for JSR 292
jrose
parents:
931
diff
changeset
|
1836 if (_print_nm == NULL) return; |
|
148e5441d916
6863023: need non-perm oops in code cache for JSR 292
jrose
parents:
931
diff
changeset
|
1837 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
|
1838 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
parents:
931
diff
changeset
|
1839 _print_nm, (int)((intptr_t)p - (intptr_t)_print_nm), |
|
148e5441d916
6863023: need non-perm oops in code cache for JSR 292
jrose
parents:
931
diff
changeset
|
1840 (intptr_t)(*p), (intptr_t)p); |
|
148e5441d916
6863023: need non-perm oops in code cache for JSR 292
jrose
parents:
931
diff
changeset
|
1841 (*p)->print(); |
|
148e5441d916
6863023: need non-perm oops in code cache for JSR 292
jrose
parents:
931
diff
changeset
|
1842 } |
|
148e5441d916
6863023: need non-perm oops in code cache for JSR 292
jrose
parents:
931
diff
changeset
|
1843 #endif //PRODUCT |
|
148e5441d916
6863023: need non-perm oops in code cache for JSR 292
jrose
parents:
931
diff
changeset
|
1844 }; |
|
148e5441d916
6863023: need non-perm oops in code cache for JSR 292
jrose
parents:
931
diff
changeset
|
1845 |
|
148e5441d916
6863023: need non-perm oops in code cache for JSR 292
jrose
parents:
931
diff
changeset
|
1846 bool nmethod::detect_scavenge_root_oops() { |
|
148e5441d916
6863023: need non-perm oops in code cache for JSR 292
jrose
parents:
931
diff
changeset
|
1847 DetectScavengeRoot detect_scavenge_root; |
|
148e5441d916
6863023: need non-perm oops in code cache for JSR 292
jrose
parents:
931
diff
changeset
|
1848 NOT_PRODUCT(if (TraceScavenge) detect_scavenge_root._print_nm = this); |
|
148e5441d916
6863023: need non-perm oops in code cache for JSR 292
jrose
parents:
931
diff
changeset
|
1849 oops_do(&detect_scavenge_root); |
|
148e5441d916
6863023: need non-perm oops in code cache for JSR 292
jrose
parents:
931
diff
changeset
|
1850 return detect_scavenge_root.detected_scavenge_root(); |
|
148e5441d916
6863023: need non-perm oops in code cache for JSR 292
jrose
parents:
931
diff
changeset
|
1851 } |
|
148e5441d916
6863023: need non-perm oops in code cache for JSR 292
jrose
parents:
931
diff
changeset
|
1852 |
| 0 | 1853 // Method that knows how to preserve outgoing arguments at call. This method must be |
| 1854 // called with a frame corresponding to a Java invoke | |
| 1855 void nmethod::preserve_callee_argument_oops(frame fr, const RegisterMap *reg_map, OopClosure* f) { | |
| 1692 | 1856 #ifndef SHARK |
| 0 | 1857 if (!method()->is_native()) { |
| 1858 SimpleScopeDesc ssd(this, fr.pc()); | |
| 2142 | 1859 Bytecode_invoke call(ssd.method(), ssd.bci()); |
|
3784
aabf25fa3f05
7057587: JSR 292 - crash with jruby in test/test_respond_to.rb
never
parents:
3377
diff
changeset
|
1860 // compiled invokedynamic call sites have an implicit receiver at |
|
aabf25fa3f05
7057587: JSR 292 - crash with jruby in test/test_respond_to.rb
never
parents:
3377
diff
changeset
|
1861 // resolution time, so make sure it gets GC'ed. |
|
aabf25fa3f05
7057587: JSR 292 - crash with jruby in test/test_respond_to.rb
never
parents:
3377
diff
changeset
|
1862 bool has_receiver = !call.is_invokestatic(); |
|
2177
3582bf76420e
6990754: Use native memory and reference counting to implement SymbolTable
coleenp
parents:
2142
diff
changeset
|
1863 Symbol* signature = call.signature(); |
|
1138
dd57230ba8fe
6893268: additional dynamic language related optimizations in C2
twisti
parents:
1135
diff
changeset
|
1864 fr.oops_compiled_arguments_do(signature, has_receiver, reg_map, f); |
| 0 | 1865 } |
| 1692 | 1866 #endif // !SHARK |
| 0 | 1867 } |
| 1868 | |
| 1869 | |
| 1870 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
|
1871 RelocIterator iter(this, p, p + 1); |
| 0 | 1872 while (iter.next()) |
| 1873 if (iter.type() == relocInfo::oop_type) { | |
| 1874 return iter.oop_reloc()->oop_value(); | |
| 1875 } | |
| 1876 return NULL; | |
| 1877 } | |
| 1878 | |
| 1879 | |
| 1880 inline bool includes(void* p, void* from, void* to) { | |
| 1881 return from <= p && p < to; | |
| 1882 } | |
| 1883 | |
| 1884 | |
| 1885 void nmethod::copy_scopes_pcs(PcDesc* pcs, int count) { | |
| 1886 assert(count >= 2, "must be sentinel values, at least"); | |
| 1887 | |
| 1888 #ifdef ASSERT | |
| 1889 // must be sorted and unique; we do a binary search in find_pc_desc() | |
| 1890 int prev_offset = pcs[0].pc_offset(); | |
| 1891 assert(prev_offset == PcDesc::lower_offset_limit, | |
| 1892 "must start with a sentinel"); | |
| 1893 for (int i = 1; i < count; i++) { | |
| 1894 int this_offset = pcs[i].pc_offset(); | |
| 1895 assert(this_offset > prev_offset, "offsets must be sorted"); | |
| 1896 prev_offset = this_offset; | |
| 1897 } | |
| 1898 assert(prev_offset == PcDesc::upper_offset_limit, | |
| 1899 "must end with a sentinel"); | |
| 1900 #endif //ASSERT | |
| 1901 | |
|
1135
e66fd840cb6b
6893081: method handle & invokedynamic code needs additional cleanup (post 6815692, 6858164)
twisti
parents:
1109
diff
changeset
|
1902 // 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
|
1903 for (int i = 0; i < count; i++) { |
|
e66fd840cb6b
6893081: method handle & invokedynamic code needs additional cleanup (post 6815692, 6858164)
twisti
parents:
1109
diff
changeset
|
1904 if (pcs[i].is_method_handle_invoke()) { |
|
e66fd840cb6b
6893081: method handle & invokedynamic code needs additional cleanup (post 6815692, 6858164)
twisti
parents:
1109
diff
changeset
|
1905 set_has_method_handle_invokes(true); |
|
e66fd840cb6b
6893081: method handle & invokedynamic code needs additional cleanup (post 6815692, 6858164)
twisti
parents:
1109
diff
changeset
|
1906 break; |
|
e66fd840cb6b
6893081: method handle & invokedynamic code needs additional cleanup (post 6815692, 6858164)
twisti
parents:
1109
diff
changeset
|
1907 } |
|
e66fd840cb6b
6893081: method handle & invokedynamic code needs additional cleanup (post 6815692, 6858164)
twisti
parents:
1109
diff
changeset
|
1908 } |
|
2083
7d9caaedafce
6990933: assert(sender_cb) failed: sanity in frame::sender_for_interpreter_frame
twisti
parents:
1972
diff
changeset
|
1909 assert(has_method_handle_invokes() == (_deoptimize_mh_offset != -1), "must have deopt mh handler"); |
|
1135
e66fd840cb6b
6893081: method handle & invokedynamic code needs additional cleanup (post 6815692, 6858164)
twisti
parents:
1109
diff
changeset
|
1910 |
| 0 | 1911 int size = count * sizeof(PcDesc); |
| 1912 assert(scopes_pcs_size() >= size, "oob"); | |
| 1913 memcpy(scopes_pcs_begin(), pcs, size); | |
| 1914 | |
| 1915 // Adjust the final sentinel downward. | |
| 1916 PcDesc* last_pc = &scopes_pcs_begin()[count-1]; | |
| 1917 assert(last_pc->pc_offset() == PcDesc::upper_offset_limit, "sanity"); | |
| 1748 | 1918 last_pc->set_pc_offset(content_size() + 1); |
| 0 | 1919 for (; last_pc + 1 < scopes_pcs_end(); last_pc += 1) { |
| 1920 // Fill any rounding gaps with copies of the last record. | |
| 1921 last_pc[1] = last_pc[0]; | |
| 1922 } | |
| 1923 // The following assert could fail if sizeof(PcDesc) is not | |
| 1924 // an integral multiple of oopSize (the rounding term). | |
| 1925 // If it fails, change the logic to always allocate a multiple | |
| 1926 // of sizeof(PcDesc), and fill unused words with copies of *last_pc. | |
| 1927 assert(last_pc + 1 == scopes_pcs_end(), "must match exactly"); | |
| 1928 } | |
| 1929 | |
| 1930 void nmethod::copy_scopes_data(u_char* buffer, int size) { | |
| 1931 assert(scopes_data_size() >= size, "oob"); | |
| 1932 memcpy(scopes_data_begin(), buffer, size); | |
| 1933 } | |
| 1934 | |
| 1935 | |
| 1936 #ifdef ASSERT | |
| 1937 static PcDesc* linear_search(nmethod* nm, int pc_offset, bool approximate) { | |
| 1938 PcDesc* lower = nm->scopes_pcs_begin(); | |
| 1939 PcDesc* upper = nm->scopes_pcs_end(); | |
| 1940 lower += 1; // exclude initial sentinel | |
| 1941 PcDesc* res = NULL; | |
| 1942 for (PcDesc* p = lower; p < upper; p++) { | |
| 1943 NOT_PRODUCT(--nmethod_stats.pc_desc_tests); // don't count this call to match_desc | |
| 1944 if (match_desc(p, pc_offset, approximate)) { | |
| 1945 if (res == NULL) | |
| 1946 res = p; | |
| 1947 else | |
| 1948 res = (PcDesc*) badAddress; | |
| 1949 } | |
| 1950 } | |
| 1951 return res; | |
| 1952 } | |
| 1953 #endif | |
| 1954 | |
| 1955 | |
| 1956 // Finds a PcDesc with real-pc equal to "pc" | |
| 1957 PcDesc* nmethod::find_pc_desc_internal(address pc, bool approximate) { | |
| 1748 | 1958 address base_address = code_begin(); |
| 0 | 1959 if ((pc < base_address) || |
| 1960 (pc - base_address) >= (ptrdiff_t) PcDesc::upper_offset_limit) { | |
| 1961 return NULL; // PC is wildly out of range | |
| 1962 } | |
| 1963 int pc_offset = (int) (pc - base_address); | |
| 1964 | |
| 1965 // Check the PcDesc cache if it contains the desired PcDesc | |
| 1966 // (This as an almost 100% hit rate.) | |
| 1967 PcDesc* res = _pc_desc_cache.find_pc_desc(pc_offset, approximate); | |
| 1968 if (res != NULL) { | |
| 1969 assert(res == linear_search(this, pc_offset, approximate), "cache ok"); | |
| 1970 return res; | |
| 1971 } | |
| 1972 | |
| 1973 // Fallback algorithm: quasi-linear search for the PcDesc | |
| 1974 // Find the last pc_offset less than the given offset. | |
| 1975 // The successor must be the required match, if there is a match at all. | |
| 1976 // (Use a fixed radix to avoid expensive affine pointer arithmetic.) | |
| 1977 PcDesc* lower = scopes_pcs_begin(); | |
| 1978 PcDesc* upper = scopes_pcs_end(); | |
| 1979 upper -= 1; // exclude final sentinel | |
| 1980 if (lower >= upper) return NULL; // native method; no PcDescs at all | |
| 1981 | |
| 1982 #define assert_LU_OK \ | |
| 1983 /* invariant on lower..upper during the following search: */ \ | |
| 1984 assert(lower->pc_offset() < pc_offset, "sanity"); \ | |
| 1985 assert(upper->pc_offset() >= pc_offset, "sanity") | |
| 1986 assert_LU_OK; | |
| 1987 | |
| 1988 // Use the last successful return as a split point. | |
| 1989 PcDesc* mid = _pc_desc_cache.last_pc_desc(); | |
| 1990 NOT_PRODUCT(++nmethod_stats.pc_desc_searches); | |
| 1991 if (mid->pc_offset() < pc_offset) { | |
| 1992 lower = mid; | |
| 1993 } else { | |
| 1994 upper = mid; | |
| 1995 } | |
| 1996 | |
| 1997 // Take giant steps at first (4096, then 256, then 16, then 1) | |
| 1998 const int LOG2_RADIX = 4 /*smaller steps in debug mode:*/ debug_only(-1); | |
| 1999 const int RADIX = (1 << LOG2_RADIX); | |
| 2000 for (int step = (1 << (LOG2_RADIX*3)); step > 1; step >>= LOG2_RADIX) { | |
| 2001 while ((mid = lower + step) < upper) { | |
| 2002 assert_LU_OK; | |
| 2003 NOT_PRODUCT(++nmethod_stats.pc_desc_searches); | |
| 2004 if (mid->pc_offset() < pc_offset) { | |
| 2005 lower = mid; | |
| 2006 } else { | |
| 2007 upper = mid; | |
| 2008 break; | |
| 2009 } | |
| 2010 } | |
| 2011 assert_LU_OK; | |
| 2012 } | |
| 2013 | |
| 2014 // Sneak up on the value with a linear search of length ~16. | |
| 2015 while (true) { | |
| 2016 assert_LU_OK; | |
| 2017 mid = lower + 1; | |
| 2018 NOT_PRODUCT(++nmethod_stats.pc_desc_searches); | |
| 2019 if (mid->pc_offset() < pc_offset) { | |
| 2020 lower = mid; | |
| 2021 } else { | |
| 2022 upper = mid; | |
| 2023 break; | |
| 2024 } | |
| 2025 } | |
| 2026 #undef assert_LU_OK | |
| 2027 | |
| 2028 if (match_desc(upper, pc_offset, approximate)) { | |
| 2029 assert(upper == linear_search(this, pc_offset, approximate), "search ok"); | |
| 2030 _pc_desc_cache.add_pc_desc(upper); | |
| 2031 return upper; | |
| 2032 } else { | |
| 2033 assert(NULL == linear_search(this, pc_offset, approximate), "search ok"); | |
| 2034 return NULL; | |
| 2035 } | |
| 2036 } | |
| 2037 | |
| 2038 | |
| 2039 bool nmethod::check_all_dependencies() { | |
| 2040 bool found_check = false; | |
| 2041 // wholesale check of all dependencies | |
| 2042 for (Dependencies::DepStream deps(this); deps.next(); ) { | |
| 2043 if (deps.check_dependency() != NULL) { | |
| 2044 found_check = true; | |
| 2045 NOT_DEBUG(break); | |
| 2046 } | |
| 2047 } | |
| 2048 return found_check; // tell caller if we found anything | |
| 2049 } | |
| 2050 | |
| 2051 bool nmethod::check_dependency_on(DepChange& changes) { | |
| 2052 // What has happened: | |
| 2053 // 1) a new class dependee has been added | |
| 2054 // 2) dependee and all its super classes have been marked | |
| 2055 bool found_check = false; // set true if we are upset | |
| 2056 for (Dependencies::DepStream deps(this); deps.next(); ) { | |
| 2057 // Evaluate only relevant dependencies. | |
| 2058 if (deps.spot_check_dependency_at(changes) != NULL) { | |
| 2059 found_check = true; | |
| 2060 NOT_DEBUG(break); | |
| 2061 } | |
| 2062 } | |
| 2063 return found_check; | |
| 2064 } | |
| 2065 | |
| 2066 bool nmethod::is_evol_dependent_on(klassOop dependee) { | |
| 2067 instanceKlass *dependee_ik = instanceKlass::cast(dependee); | |
| 2068 objArrayOop dependee_methods = dependee_ik->methods(); | |
| 2069 for (Dependencies::DepStream deps(this); deps.next(); ) { | |
| 2070 if (deps.type() == Dependencies::evol_method) { | |
| 2071 methodOop method = deps.method_argument(0); | |
| 2072 for (int j = 0; j < dependee_methods->length(); j++) { | |
| 2073 if ((methodOop) dependee_methods->obj_at(j) == method) { | |
| 2074 // RC_TRACE macro has an embedded ResourceMark | |
| 2075 RC_TRACE(0x01000000, | |
| 2076 ("Found evol dependency of nmethod %s.%s(%s) compile_id=%d on method %s.%s(%s)", | |
| 2077 _method->method_holder()->klass_part()->external_name(), | |
| 2078 _method->name()->as_C_string(), | |
| 2079 _method->signature()->as_C_string(), compile_id(), | |
| 2080 method->method_holder()->klass_part()->external_name(), | |
| 2081 method->name()->as_C_string(), | |
| 2082 method->signature()->as_C_string())); | |
| 2083 if (TraceDependencies || LogCompilation) | |
| 2084 deps.log_dependency(dependee); | |
| 2085 return true; | |
| 2086 } | |
| 2087 } | |
| 2088 } | |
| 2089 } | |
| 2090 return false; | |
| 2091 } | |
| 2092 | |
| 2093 // Called from mark_for_deoptimization, when dependee is invalidated. | |
| 2094 bool nmethod::is_dependent_on_method(methodOop dependee) { | |
| 2095 for (Dependencies::DepStream deps(this); deps.next(); ) { | |
| 2096 if (deps.type() != Dependencies::evol_method) | |
| 2097 continue; | |
| 2098 methodOop method = deps.method_argument(0); | |
| 2099 if (method == dependee) return true; | |
| 2100 } | |
| 2101 return false; | |
| 2102 } | |
| 2103 | |
| 2104 | |
| 2105 bool nmethod::is_patchable_at(address instr_addr) { | |
| 1748 | 2106 assert(insts_contains(instr_addr), "wrong nmethod used"); |
| 0 | 2107 if (is_zombie()) { |
| 2108 // a zombie may never be patched | |
| 2109 return false; | |
| 2110 } | |
| 2111 return true; | |
| 2112 } | |
| 2113 | |
| 2114 | |
| 2115 address nmethod::continuation_for_implicit_exception(address pc) { | |
| 2116 // Exception happened outside inline-cache check code => we are inside | |
| 2117 // an active nmethod => use cpc to determine a return address | |
| 1748 | 2118 int exception_offset = pc - code_begin(); |
| 0 | 2119 int cont_offset = ImplicitExceptionTable(this).at( exception_offset ); |
| 2120 #ifdef ASSERT | |
| 2121 if (cont_offset == 0) { | |
| 2122 Thread* thread = ThreadLocalStorage::get_thread_slow(); | |
| 2123 ResetNoHandleMark rnm; // Might be called from LEAF/QUICK ENTRY | |
| 2124 HandleMark hm(thread); | |
| 2125 ResourceMark rm(thread); | |
| 2126 CodeBlob* cb = CodeCache::find_blob(pc); | |
| 2127 assert(cb != NULL && cb == this, ""); | |
| 2128 tty->print_cr("implicit exception happened at " INTPTR_FORMAT, pc); | |
| 2129 print(); | |
| 2130 method()->print_codes(); | |
| 2131 print_code(); | |
| 2132 print_pcs(); | |
| 2133 } | |
| 2134 #endif | |
| 1250 | 2135 if (cont_offset == 0) { |
| 2136 // Let the normal error handling report the exception | |
| 2137 return NULL; | |
| 2138 } | |
| 1748 | 2139 return code_begin() + cont_offset; |
| 0 | 2140 } |
| 2141 | |
| 2142 | |
| 2143 | |
| 2144 void nmethod_init() { | |
| 2145 // make sure you didn't forget to adjust the filler fields | |
| 2146 assert(sizeof(nmethod) % oopSize == 0, "nmethod size must be multiple of a word"); | |
| 2147 } | |
| 2148 | |
| 2149 | |
| 2150 //------------------------------------------------------------------------------------------- | |
| 2151 | |
| 2152 | |
| 2153 // QQQ might we make this work from a frame?? | |
| 2154 nmethodLocker::nmethodLocker(address pc) { | |
| 2155 CodeBlob* cb = CodeCache::find_blob(pc); | |
| 2156 guarantee(cb != NULL && cb->is_nmethod(), "bad pc for a nmethod found"); | |
| 2157 _nm = (nmethod*)cb; | |
| 2158 lock_nmethod(_nm); | |
| 2159 } | |
| 2160 | |
|
2342
46a56fac55c7
7024970: 2/3 assert(ServiceThread::is_service_thread(Thread::current())) failed: Service thread must post enqueue
dcubed
parents:
2321
diff
changeset
|
2161 // Only JvmtiDeferredEvent::compiled_method_unload_event() |
|
46a56fac55c7
7024970: 2/3 assert(ServiceThread::is_service_thread(Thread::current())) failed: Service thread must post enqueue
dcubed
parents:
2321
diff
changeset
|
2162 // should pass zombie_ok == true. |
|
46a56fac55c7
7024970: 2/3 assert(ServiceThread::is_service_thread(Thread::current())) failed: Service thread must post enqueue
dcubed
parents:
2321
diff
changeset
|
2163 void nmethodLocker::lock_nmethod(nmethod* nm, bool zombie_ok) { |
| 0 | 2164 if (nm == NULL) return; |
| 2165 Atomic::inc(&nm->_lock_count); | |
|
2342
46a56fac55c7
7024970: 2/3 assert(ServiceThread::is_service_thread(Thread::current())) failed: Service thread must post enqueue
dcubed
parents:
2321
diff
changeset
|
2166 guarantee(zombie_ok || !nm->is_zombie(), "cannot lock a zombie method"); |
| 0 | 2167 } |
| 2168 | |
| 2169 void nmethodLocker::unlock_nmethod(nmethod* nm) { | |
| 2170 if (nm == NULL) return; | |
| 2171 Atomic::dec(&nm->_lock_count); | |
| 2172 guarantee(nm->_lock_count >= 0, "unmatched nmethod lock/unlock"); | |
| 2173 } | |
| 2174 | |
| 1204 | 2175 |
| 2176 // ----------------------------------------------------------------------------- | |
| 2177 // nmethod::get_deopt_original_pc | |
| 2178 // | |
| 2179 // Return the original PC for the given PC if: | |
| 2180 // (a) the given PC belongs to a nmethod and | |
| 2181 // (b) it is a deopt PC | |
| 2182 address nmethod::get_deopt_original_pc(const frame* fr) { | |
| 2183 if (fr->cb() == NULL) return NULL; | |
| 2184 | |
| 2185 nmethod* nm = fr->cb()->as_nmethod_or_null(); | |
| 2186 if (nm != NULL && nm->is_deopt_pc(fr->pc())) | |
| 2187 return nm->get_original_pc(fr); | |
| 2188 | |
| 2189 return NULL; | |
| 0 | 2190 } |
| 2191 | |
| 2192 | |
| 2193 // ----------------------------------------------------------------------------- | |
|
1135
e66fd840cb6b
6893081: method handle & invokedynamic code needs additional cleanup (post 6815692, 6858164)
twisti
parents:
1109
diff
changeset
|
2194 // MethodHandle |
|
e66fd840cb6b
6893081: method handle & invokedynamic code needs additional cleanup (post 6815692, 6858164)
twisti
parents:
1109
diff
changeset
|
2195 |
|
e66fd840cb6b
6893081: method handle & invokedynamic code needs additional cleanup (post 6815692, 6858164)
twisti
parents:
1109
diff
changeset
|
2196 bool nmethod::is_method_handle_return(address return_pc) { |
|
e66fd840cb6b
6893081: method handle & invokedynamic code needs additional cleanup (post 6815692, 6858164)
twisti
parents:
1109
diff
changeset
|
2197 if (!has_method_handle_invokes()) return false; |
|
e66fd840cb6b
6893081: method handle & invokedynamic code needs additional cleanup (post 6815692, 6858164)
twisti
parents:
1109
diff
changeset
|
2198 PcDesc* pd = pc_desc_at(return_pc); |
|
e66fd840cb6b
6893081: method handle & invokedynamic code needs additional cleanup (post 6815692, 6858164)
twisti
parents:
1109
diff
changeset
|
2199 if (pd == NULL) |
|
e66fd840cb6b
6893081: method handle & invokedynamic code needs additional cleanup (post 6815692, 6858164)
twisti
parents:
1109
diff
changeset
|
2200 return false; |
|
e66fd840cb6b
6893081: method handle & invokedynamic code needs additional cleanup (post 6815692, 6858164)
twisti
parents:
1109
diff
changeset
|
2201 return pd->is_method_handle_invoke(); |
|
e66fd840cb6b
6893081: method handle & invokedynamic code needs additional cleanup (post 6815692, 6858164)
twisti
parents:
1109
diff
changeset
|
2202 } |
|
e66fd840cb6b
6893081: method handle & invokedynamic code needs additional cleanup (post 6815692, 6858164)
twisti
parents:
1109
diff
changeset
|
2203 |
|
e66fd840cb6b
6893081: method handle & invokedynamic code needs additional cleanup (post 6815692, 6858164)
twisti
parents:
1109
diff
changeset
|
2204 |
|
e66fd840cb6b
6893081: method handle & invokedynamic code needs additional cleanup (post 6815692, 6858164)
twisti
parents:
1109
diff
changeset
|
2205 // ----------------------------------------------------------------------------- |
| 0 | 2206 // Verification |
| 2207 | |
|
989
148e5441d916
6863023: need non-perm oops in code cache for JSR 292
jrose
parents:
931
diff
changeset
|
2208 class VerifyOopsClosure: public OopClosure { |
|
148e5441d916
6863023: need non-perm oops in code cache for JSR 292
jrose
parents:
931
diff
changeset
|
2209 nmethod* _nm; |
|
148e5441d916
6863023: need non-perm oops in code cache for JSR 292
jrose
parents:
931
diff
changeset
|
2210 bool _ok; |
|
148e5441d916
6863023: need non-perm oops in code cache for JSR 292
jrose
parents:
931
diff
changeset
|
2211 public: |
|
148e5441d916
6863023: need non-perm oops in code cache for JSR 292
jrose
parents:
931
diff
changeset
|
2212 VerifyOopsClosure(nmethod* nm) : _nm(nm), _ok(true) { } |
|
148e5441d916
6863023: need non-perm oops in code cache for JSR 292
jrose
parents:
931
diff
changeset
|
2213 bool ok() { return _ok; } |
|
148e5441d916
6863023: need non-perm oops in code cache for JSR 292
jrose
parents:
931
diff
changeset
|
2214 virtual void do_oop(oop* p) { |
|
148e5441d916
6863023: need non-perm oops in code cache for JSR 292
jrose
parents:
931
diff
changeset
|
2215 if ((*p) == NULL || (*p)->is_oop()) return; |
|
148e5441d916
6863023: need non-perm oops in code cache for JSR 292
jrose
parents:
931
diff
changeset
|
2216 if (_ok) { |
|
148e5441d916
6863023: need non-perm oops in code cache for JSR 292
jrose
parents:
931
diff
changeset
|
2217 _nm->print_nmethod(true); |
|
148e5441d916
6863023: need non-perm oops in code cache for JSR 292
jrose
parents:
931
diff
changeset
|
2218 _ok = false; |
|
148e5441d916
6863023: need non-perm oops in code cache for JSR 292
jrose
parents:
931
diff
changeset
|
2219 } |
|
148e5441d916
6863023: need non-perm oops in code cache for JSR 292
jrose
parents:
931
diff
changeset
|
2220 tty->print_cr("*** non-oop "PTR_FORMAT" found at "PTR_FORMAT" (offset %d)", |
|
148e5441d916
6863023: need non-perm oops in code cache for JSR 292
jrose
parents:
931
diff
changeset
|
2221 (intptr_t)(*p), (intptr_t)p, (int)((intptr_t)p - (intptr_t)_nm)); |
|
148e5441d916
6863023: need non-perm oops in code cache for JSR 292
jrose
parents:
931
diff
changeset
|
2222 } |
|
148e5441d916
6863023: need non-perm oops in code cache for JSR 292
jrose
parents:
931
diff
changeset
|
2223 virtual void do_oop(narrowOop* p) { ShouldNotReachHere(); } |
|
148e5441d916
6863023: need non-perm oops in code cache for JSR 292
jrose
parents:
931
diff
changeset
|
2224 }; |
|
148e5441d916
6863023: need non-perm oops in code cache for JSR 292
jrose
parents:
931
diff
changeset
|
2225 |
| 0 | 2226 void nmethod::verify() { |
| 2227 | |
| 2228 // Hmm. OSR methods can be deopted but not marked as zombie or not_entrant | |
| 2229 // seems odd. | |
| 2230 | |
| 2231 if( is_zombie() || is_not_entrant() ) | |
| 2232 return; | |
| 2233 | |
| 2234 // Make sure all the entry points are correctly aligned for patching. | |
| 2235 NativeJump::check_verified_entry_alignment(entry_point(), verified_entry_point()); | |
| 2236 | |
| 2237 assert(method()->is_oop(), "must be valid"); | |
| 2238 | |
| 2239 ResourceMark rm; | |
| 2240 | |
| 2241 if (!CodeCache::contains(this)) { | |
|
1490
f03d0a26bf83
6888954: argument formatting for assert() and friends
jcoomes
parents:
1489
diff
changeset
|
2242 fatal(err_msg("nmethod at " INTPTR_FORMAT " not in zone", this)); |
| 0 | 2243 } |
| 2244 | |
| 2245 if(is_native_method() ) | |
| 2246 return; | |
| 2247 | |
| 2248 nmethod* nm = CodeCache::find_nmethod(verified_entry_point()); | |
| 2249 if (nm != this) { | |
|
1490
f03d0a26bf83
6888954: argument formatting for assert() and friends
jcoomes
parents:
1489
diff
changeset
|
2250 fatal(err_msg("findNMethod did not find this nmethod (" INTPTR_FORMAT ")", |
|
f03d0a26bf83
6888954: argument formatting for assert() and friends
jcoomes
parents:
1489
diff
changeset
|
2251 this)); |
| 0 | 2252 } |
| 2253 | |
| 2254 for (PcDesc* p = scopes_pcs_begin(); p < scopes_pcs_end(); p++) { | |
| 2255 if (! p->verify(this)) { | |
| 2256 tty->print_cr("\t\tin nmethod at " INTPTR_FORMAT " (pcs)", this); | |
| 2257 } | |
| 2258 } | |
| 2259 | |
|
989
148e5441d916
6863023: need non-perm oops in code cache for JSR 292
jrose
parents:
931
diff
changeset
|
2260 VerifyOopsClosure voc(this); |
|
148e5441d916
6863023: need non-perm oops in code cache for JSR 292
jrose
parents:
931
diff
changeset
|
2261 oops_do(&voc); |
|
148e5441d916
6863023: need non-perm oops in code cache for JSR 292
jrose
parents:
931
diff
changeset
|
2262 assert(voc.ok(), "embedded oops must be OK"); |
|
148e5441d916
6863023: need non-perm oops in code cache for JSR 292
jrose
parents:
931
diff
changeset
|
2263 verify_scavenge_root_oops(); |
|
148e5441d916
6863023: need non-perm oops in code cache for JSR 292
jrose
parents:
931
diff
changeset
|
2264 |
| 0 | 2265 verify_scopes(); |
| 2266 } | |
| 2267 | |
| 2268 | |
| 2269 void nmethod::verify_interrupt_point(address call_site) { | |
| 2270 // This code does not work in release mode since | |
| 2271 // owns_lock only is available in debug mode. | |
| 2272 CompiledIC* ic = NULL; | |
| 2273 Thread *cur = Thread::current(); | |
| 2274 if (CompiledIC_lock->owner() == cur || | |
| 2275 ((cur->is_VM_thread() || cur->is_ConcurrentGC_thread()) && | |
| 2276 SafepointSynchronize::is_at_safepoint())) { | |
| 2277 ic = CompiledIC_at(call_site); | |
| 2278 CHECK_UNHANDLED_OOPS_ONLY(Thread::current()->clear_unhandled_oops()); | |
| 2279 } else { | |
| 2280 MutexLocker ml_verify (CompiledIC_lock); | |
| 2281 ic = CompiledIC_at(call_site); | |
| 2282 } | |
| 2283 PcDesc* pd = pc_desc_at(ic->end_of_call()); | |
| 2284 assert(pd != NULL, "PcDesc must exist"); | |
| 2285 for (ScopeDesc* sd = new ScopeDesc(this, pd->scope_decode_offset(), | |
|
1253
f70b0d9ab095
6910618: C2: Error: assert(d->is_oop(),"JVM_ArrayCopy: dst not an oop")
kvn
parents:
1250
diff
changeset
|
2286 pd->obj_decode_offset(), pd->should_reexecute(), |
|
f70b0d9ab095
6910618: C2: Error: assert(d->is_oop(),"JVM_ArrayCopy: dst not an oop")
kvn
parents:
1250
diff
changeset
|
2287 pd->return_oop()); |
| 0 | 2288 !sd->is_top(); sd = sd->sender()) { |
| 2289 sd->verify(); | |
| 2290 } | |
| 2291 } | |
| 2292 | |
| 2293 void nmethod::verify_scopes() { | |
| 2294 if( !method() ) return; // Runtime stubs have no scope | |
| 2295 if (method()->is_native()) return; // Ignore stub methods. | |
| 2296 // iterate through all interrupt point | |
| 2297 // and verify the debug information is valid. | |
| 2298 RelocIterator iter((nmethod*)this); | |
| 2299 while (iter.next()) { | |
| 2300 address stub = NULL; | |
| 2301 switch (iter.type()) { | |
| 2302 case relocInfo::virtual_call_type: | |
| 2303 verify_interrupt_point(iter.addr()); | |
| 2304 break; | |
| 2305 case relocInfo::opt_virtual_call_type: | |
| 2306 stub = iter.opt_virtual_call_reloc()->static_stub(); | |
| 2307 verify_interrupt_point(iter.addr()); | |
| 2308 break; | |
| 2309 case relocInfo::static_call_type: | |
| 2310 stub = iter.static_call_reloc()->static_stub(); | |
| 2311 //verify_interrupt_point(iter.addr()); | |
| 2312 break; | |
| 2313 case relocInfo::runtime_call_type: | |
| 2314 address destination = iter.reloc()->value(); | |
| 2315 // Right now there is no way to find out which entries support | |
| 2316 // an interrupt point. It would be nice if we had this | |
| 2317 // information in a table. | |
| 2318 break; | |
| 2319 } | |
| 2320 assert(stub == NULL || stub_contains(stub), "static call stub outside stub section"); | |
| 2321 } | |
| 2322 } | |
| 2323 | |
| 2324 | |
| 2325 // ----------------------------------------------------------------------------- | |
| 2326 // Non-product code | |
| 2327 #ifndef PRODUCT | |
| 2328 | |
|
989
148e5441d916
6863023: need non-perm oops in code cache for JSR 292
jrose
parents:
931
diff
changeset
|
2329 class DebugScavengeRoot: public OopClosure { |
|
148e5441d916
6863023: need non-perm oops in code cache for JSR 292
jrose
parents:
931
diff
changeset
|
2330 nmethod* _nm; |
|
148e5441d916
6863023: need non-perm oops in code cache for JSR 292
jrose
parents:
931
diff
changeset
|
2331 bool _ok; |
|
148e5441d916
6863023: need non-perm oops in code cache for JSR 292
jrose
parents:
931
diff
changeset
|
2332 public: |
|
148e5441d916
6863023: need non-perm oops in code cache for JSR 292
jrose
parents:
931
diff
changeset
|
2333 DebugScavengeRoot(nmethod* nm) : _nm(nm), _ok(true) { } |
|
148e5441d916
6863023: need non-perm oops in code cache for JSR 292
jrose
parents:
931
diff
changeset
|
2334 bool ok() { return _ok; } |
|
148e5441d916
6863023: need non-perm oops in code cache for JSR 292
jrose
parents:
931
diff
changeset
|
2335 virtual void do_oop(oop* p) { |
|
148e5441d916
6863023: need non-perm oops in code cache for JSR 292
jrose
parents:
931
diff
changeset
|
2336 if ((*p) == NULL || !(*p)->is_scavengable()) return; |
|
148e5441d916
6863023: need non-perm oops in code cache for JSR 292
jrose
parents:
931
diff
changeset
|
2337 if (_ok) { |
|
148e5441d916
6863023: need non-perm oops in code cache for JSR 292
jrose
parents:
931
diff
changeset
|
2338 _nm->print_nmethod(true); |
|
148e5441d916
6863023: need non-perm oops in code cache for JSR 292
jrose
parents:
931
diff
changeset
|
2339 _ok = false; |
|
148e5441d916
6863023: need non-perm oops in code cache for JSR 292
jrose
parents:
931
diff
changeset
|
2340 } |
|
3377
2aa9ddbb9e60
7041789: 30% perf regression with c2/arm following 7017732
jmasa
parents:
2405
diff
changeset
|
2341 tty->print_cr("*** scavengable oop "PTR_FORMAT" found at "PTR_FORMAT" (offset %d)", |
|
989
148e5441d916
6863023: need non-perm oops in code cache for JSR 292
jrose
parents:
931
diff
changeset
|
2342 (intptr_t)(*p), (intptr_t)p, (int)((intptr_t)p - (intptr_t)_nm)); |
|
148e5441d916
6863023: need non-perm oops in code cache for JSR 292
jrose
parents:
931
diff
changeset
|
2343 (*p)->print(); |
|
148e5441d916
6863023: need non-perm oops in code cache for JSR 292
jrose
parents:
931
diff
changeset
|
2344 } |
|
148e5441d916
6863023: need non-perm oops in code cache for JSR 292
jrose
parents:
931
diff
changeset
|
2345 virtual void do_oop(narrowOop* p) { ShouldNotReachHere(); } |
|
148e5441d916
6863023: need non-perm oops in code cache for JSR 292
jrose
parents:
931
diff
changeset
|
2346 }; |
| 0 | 2347 |
|
989
148e5441d916
6863023: need non-perm oops in code cache for JSR 292
jrose
parents:
931
diff
changeset
|
2348 void nmethod::verify_scavenge_root_oops() { |
|
148e5441d916
6863023: need non-perm oops in code cache for JSR 292
jrose
parents:
931
diff
changeset
|
2349 if (!on_scavenge_root_list()) { |
|
148e5441d916
6863023: need non-perm oops in code cache for JSR 292
jrose
parents:
931
diff
changeset
|
2350 // 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
|
2351 DebugScavengeRoot debug_scavenge_root(this); |
|
148e5441d916
6863023: need non-perm oops in code cache for JSR 292
jrose
parents:
931
diff
changeset
|
2352 oops_do(&debug_scavenge_root); |
|
148e5441d916
6863023: need non-perm oops in code cache for JSR 292
jrose
parents:
931
diff
changeset
|
2353 if (!debug_scavenge_root.ok()) |
|
3377
2aa9ddbb9e60
7041789: 30% perf regression with c2/arm following 7017732
jmasa
parents:
2405
diff
changeset
|
2354 fatal("found an unadvertised bad scavengable oop in the code cache"); |
| 0 | 2355 } |
|
989
148e5441d916
6863023: need non-perm oops in code cache for JSR 292
jrose
parents:
931
diff
changeset
|
2356 assert(scavenge_root_not_marked(), ""); |
| 0 | 2357 } |
| 2358 | |
|
100
c7c777385a15
6667042: PrintAssembly option does not work without special plugin
jrose
parents:
30
diff
changeset
|
2359 #endif // PRODUCT |
| 0 | 2360 |
| 2361 // Printing operations | |
| 2362 | |
| 2363 void nmethod::print() const { | |
| 2364 ResourceMark rm; | |
| 2365 ttyLocker ttyl; // keep the following output all in one block | |
| 2366 | |
|
2405
3d58a4983660
7022998: JSR 292 recursive method handle calls inline themselves infinitely
twisti
parents:
2376
diff
changeset
|
2367 tty->print("Compiled method "); |
| 0 | 2368 |
| 2369 if (is_compiled_by_c1()) { | |
| 2370 tty->print("(c1) "); | |
| 2371 } else if (is_compiled_by_c2()) { | |
| 2372 tty->print("(c2) "); | |
| 1692 | 2373 } else if (is_compiled_by_shark()) { |
| 2374 tty->print("(shark) "); | |
| 0 | 2375 } else { |
| 2376 tty->print("(nm) "); | |
| 2377 } | |
| 2378 | |
|
2405
3d58a4983660
7022998: JSR 292 recursive method handle calls inline themselves infinitely
twisti
parents:
2376
diff
changeset
|
2379 print_on(tty, NULL); |
|
3d58a4983660
7022998: JSR 292 recursive method handle calls inline themselves infinitely
twisti
parents:
2376
diff
changeset
|
2380 |
| 0 | 2381 if (WizardMode) { |
| 2382 tty->print("((nmethod*) "INTPTR_FORMAT ") ", this); | |
| 2383 tty->print(" for method " INTPTR_FORMAT , (address)method()); | |
| 2384 tty->print(" { "); | |
| 2385 if (is_in_use()) tty->print("in_use "); | |
| 2386 if (is_not_entrant()) tty->print("not_entrant "); | |
| 2387 if (is_zombie()) tty->print("zombie "); | |
| 2388 if (is_unloaded()) tty->print("unloaded "); | |
|
989
148e5441d916
6863023: need non-perm oops in code cache for JSR 292
jrose
parents:
931
diff
changeset
|
2389 if (on_scavenge_root_list()) tty->print("scavenge_root "); |
| 0 | 2390 tty->print_cr("}:"); |
| 2391 } | |
| 2392 if (size () > 0) tty->print_cr(" total in heap [" INTPTR_FORMAT "," INTPTR_FORMAT "] = %d", | |
| 2393 (address)this, | |
| 2394 (address)this + size(), | |
| 2395 size()); | |
| 2396 if (relocation_size () > 0) tty->print_cr(" relocation [" INTPTR_FORMAT "," INTPTR_FORMAT "] = %d", | |
| 2397 relocation_begin(), | |
| 2398 relocation_end(), | |
| 2399 relocation_size()); | |
|
1762
0878d7bae69f
6961697: move nmethod constants section before instruction section
twisti
parents:
1748
diff
changeset
|
2400 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
|
2401 consts_begin(), |
|
0878d7bae69f
6961697: move nmethod constants section before instruction section
twisti
parents:
1748
diff
changeset
|
2402 consts_end(), |
|
0878d7bae69f
6961697: move nmethod constants section before instruction section
twisti
parents:
1748
diff
changeset
|
2403 consts_size()); |
| 1748 | 2404 if (insts_size () > 0) tty->print_cr(" main code [" INTPTR_FORMAT "," INTPTR_FORMAT "] = %d", |
| 2405 insts_begin(), | |
| 2406 insts_end(), | |
| 2407 insts_size()); | |
| 0 | 2408 if (stub_size () > 0) tty->print_cr(" stub code [" INTPTR_FORMAT "," INTPTR_FORMAT "] = %d", |
| 2409 stub_begin(), | |
| 2410 stub_end(), | |
| 2411 stub_size()); | |
|
1563
1a5913bf5e19
6951083: oops and relocations should part of nmethod not CodeBlob
twisti
parents:
1538
diff
changeset
|
2412 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
|
2413 oops_begin(), |
|
1a5913bf5e19
6951083: oops and relocations should part of nmethod not CodeBlob
twisti
parents:
1538
diff
changeset
|
2414 oops_end(), |
|
1a5913bf5e19
6951083: oops and relocations should part of nmethod not CodeBlob
twisti
parents:
1538
diff
changeset
|
2415 oops_size()); |
| 0 | 2416 if (scopes_data_size () > 0) tty->print_cr(" scopes data [" INTPTR_FORMAT "," INTPTR_FORMAT "] = %d", |
| 2417 scopes_data_begin(), | |
| 2418 scopes_data_end(), | |
| 2419 scopes_data_size()); | |
| 2420 if (scopes_pcs_size () > 0) tty->print_cr(" scopes pcs [" INTPTR_FORMAT "," INTPTR_FORMAT "] = %d", | |
| 2421 scopes_pcs_begin(), | |
| 2422 scopes_pcs_end(), | |
| 2423 scopes_pcs_size()); | |
| 2424 if (dependencies_size () > 0) tty->print_cr(" dependencies [" INTPTR_FORMAT "," INTPTR_FORMAT "] = %d", | |
| 2425 dependencies_begin(), | |
| 2426 dependencies_end(), | |
| 2427 dependencies_size()); | |
| 2428 if (handler_table_size() > 0) tty->print_cr(" handler table [" INTPTR_FORMAT "," INTPTR_FORMAT "] = %d", | |
| 2429 handler_table_begin(), | |
| 2430 handler_table_end(), | |
| 2431 handler_table_size()); | |
| 2432 if (nul_chk_table_size() > 0) tty->print_cr(" nul chk table [" INTPTR_FORMAT "," INTPTR_FORMAT "] = %d", | |
| 2433 nul_chk_table_begin(), | |
| 2434 nul_chk_table_end(), | |
| 2435 nul_chk_table_size()); | |
| 2436 } | |
| 2437 | |
|
100
c7c777385a15
6667042: PrintAssembly option does not work without special plugin
jrose
parents:
30
diff
changeset
|
2438 void nmethod::print_code() { |
|
c7c777385a15
6667042: PrintAssembly option does not work without special plugin
jrose
parents:
30
diff
changeset
|
2439 HandleMark hm; |
|
c7c777385a15
6667042: PrintAssembly option does not work without special plugin
jrose
parents:
30
diff
changeset
|
2440 ResourceMark m; |
|
c7c777385a15
6667042: PrintAssembly option does not work without special plugin
jrose
parents:
30
diff
changeset
|
2441 Disassembler::decode(this); |
|
c7c777385a15
6667042: PrintAssembly option does not work without special plugin
jrose
parents:
30
diff
changeset
|
2442 } |
|
c7c777385a15
6667042: PrintAssembly option does not work without special plugin
jrose
parents:
30
diff
changeset
|
2443 |
|
c7c777385a15
6667042: PrintAssembly option does not work without special plugin
jrose
parents:
30
diff
changeset
|
2444 |
|
c7c777385a15
6667042: PrintAssembly option does not work without special plugin
jrose
parents:
30
diff
changeset
|
2445 #ifndef PRODUCT |
| 0 | 2446 |
| 2447 void nmethod::print_scopes() { | |
| 2448 // Find the first pc desc for all scopes in the code and print it. | |
| 2449 ResourceMark rm; | |
| 2450 for (PcDesc* p = scopes_pcs_begin(); p < scopes_pcs_end(); p++) { | |
| 2451 if (p->scope_decode_offset() == DebugInformationRecorder::serialized_null) | |
| 2452 continue; | |
| 2453 | |
| 2454 ScopeDesc* sd = scope_desc_at(p->real_pc(this)); | |
| 2455 sd->print_on(tty, p); | |
| 2456 } | |
| 2457 } | |
| 2458 | |
| 2459 void nmethod::print_dependencies() { | |
| 2460 ResourceMark rm; | |
| 2461 ttyLocker ttyl; // keep the following output all in one block | |
| 2462 tty->print_cr("Dependencies:"); | |
| 2463 for (Dependencies::DepStream deps(this); deps.next(); ) { | |
| 2464 deps.print_dependency(); | |
| 2465 klassOop ctxk = deps.context_type(); | |
| 2466 if (ctxk != NULL) { | |
| 2467 Klass* k = Klass::cast(ctxk); | |
| 2468 if (k->oop_is_instance() && ((instanceKlass*)k)->is_dependent_nmethod(this)) { | |
| 30 | 2469 tty->print_cr(" [nmethod<=klass]%s", k->external_name()); |
| 0 | 2470 } |
| 2471 } | |
| 2472 deps.log_dependency(); // put it into the xml log also | |
| 2473 } | |
| 2474 } | |
| 2475 | |
| 2476 | |
| 2477 void nmethod::print_relocations() { | |
| 2478 ResourceMark m; // in case methods get printed via the debugger | |
| 2479 tty->print_cr("relocations:"); | |
| 2480 RelocIterator iter(this); | |
| 2481 iter.print(); | |
| 2482 if (UseRelocIndex) { | |
| 2483 jint* index_end = (jint*)relocation_end() - 1; | |
| 2484 jint index_size = *index_end; | |
| 2485 jint* index_start = (jint*)( (address)index_end - index_size ); | |
| 2486 tty->print_cr(" index @" INTPTR_FORMAT ": index_size=%d", index_start, index_size); | |
| 2487 if (index_size > 0) { | |
| 2488 jint* ip; | |
| 2489 for (ip = index_start; ip+2 <= index_end; ip += 2) | |
| 2490 tty->print_cr(" (%d %d) addr=" INTPTR_FORMAT " @" INTPTR_FORMAT, | |
| 2491 ip[0], | |
| 2492 ip[1], | |
| 2493 header_end()+ip[0], | |
| 2494 relocation_begin()-1+ip[1]); | |
| 2495 for (; ip < index_end; ip++) | |
| 2496 tty->print_cr(" (%d ?)", ip[0]); | |
| 2497 tty->print_cr(" @" INTPTR_FORMAT ": index_size=%d", ip, *ip++); | |
| 2498 tty->print_cr("reloc_end @" INTPTR_FORMAT ":", ip); | |
| 2499 } | |
| 2500 } | |
| 2501 } | |
| 2502 | |
| 2503 | |
| 2504 void nmethod::print_pcs() { | |
| 2505 ResourceMark m; // in case methods get printed via debugger | |
| 2506 tty->print_cr("pc-bytecode offsets:"); | |
| 2507 for (PcDesc* p = scopes_pcs_begin(); p < scopes_pcs_end(); p++) { | |
| 2508 p->print(this); | |
| 2509 } | |
| 2510 } | |
| 2511 | |
|
100
c7c777385a15
6667042: PrintAssembly option does not work without special plugin
jrose
parents:
30
diff
changeset
|
2512 #endif // PRODUCT |
| 0 | 2513 |
| 2514 const char* nmethod::reloc_string_for(u_char* begin, u_char* end) { | |
| 2515 RelocIterator iter(this, begin, end); | |
| 2516 bool have_one = false; | |
| 2517 while (iter.next()) { | |
| 2518 have_one = true; | |
| 2519 switch (iter.type()) { | |
| 2520 case relocInfo::none: return "no_reloc"; | |
| 2521 case relocInfo::oop_type: { | |
| 2522 stringStream st; | |
| 2523 oop_Relocation* r = iter.oop_reloc(); | |
| 2524 oop obj = r->oop_value(); | |
| 2525 st.print("oop("); | |
| 2526 if (obj == NULL) st.print("NULL"); | |
| 2527 else obj->print_value_on(&st); | |
| 2528 st.print(")"); | |
| 2529 return st.as_string(); | |
| 2530 } | |
| 2531 case relocInfo::virtual_call_type: return "virtual_call"; | |
| 2532 case relocInfo::opt_virtual_call_type: return "optimized virtual_call"; | |
| 2533 case relocInfo::static_call_type: return "static_call"; | |
| 2534 case relocInfo::static_stub_type: return "static_stub"; | |
| 2535 case relocInfo::runtime_call_type: return "runtime_call"; | |
| 2536 case relocInfo::external_word_type: return "external_word"; | |
| 2537 case relocInfo::internal_word_type: return "internal_word"; | |
| 2538 case relocInfo::section_word_type: return "section_word"; | |
| 2539 case relocInfo::poll_type: return "poll"; | |
| 2540 case relocInfo::poll_return_type: return "poll_return"; | |
| 2541 case relocInfo::type_mask: return "type_bit_mask"; | |
| 2542 } | |
| 2543 } | |
| 2544 return have_one ? "other" : NULL; | |
| 2545 } | |
| 2546 | |
| 2547 // Return a the last scope in (begin..end] | |
| 2548 ScopeDesc* nmethod::scope_desc_in(address begin, address end) { | |
| 2549 PcDesc* p = pc_desc_near(begin+1); | |
| 2550 if (p != NULL && p->real_pc(this) <= end) { | |
| 2551 return new ScopeDesc(this, p->scope_decode_offset(), | |
|
1253
f70b0d9ab095
6910618: C2: Error: assert(d->is_oop(),"JVM_ArrayCopy: dst not an oop")
kvn
parents:
1250
diff
changeset
|
2552 p->obj_decode_offset(), p->should_reexecute(), |
|
f70b0d9ab095
6910618: C2: Error: assert(d->is_oop(),"JVM_ArrayCopy: dst not an oop")
kvn
parents:
1250
diff
changeset
|
2553 p->return_oop()); |
| 0 | 2554 } |
| 2555 return NULL; | |
| 2556 } | |
| 2557 | |
|
1155
4e6abf09f540
6912062: disassembler plugin needs to produce symbolic information in product mode
jrose
parents:
1141
diff
changeset
|
2558 void nmethod::print_nmethod_labels(outputStream* stream, address block_begin) { |
|
4e6abf09f540
6912062: disassembler plugin needs to produce symbolic information in product mode
jrose
parents:
1141
diff
changeset
|
2559 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
|
2560 if (block_begin == verified_entry_point()) stream->print_cr("[Verified Entry Point]"); |
|
4e6abf09f540
6912062: disassembler plugin needs to produce symbolic information in product mode
jrose
parents:
1141
diff
changeset
|
2561 if (block_begin == exception_begin()) stream->print_cr("[Exception Handler]"); |
|
4e6abf09f540
6912062: disassembler plugin needs to produce symbolic information in product mode
jrose
parents:
1141
diff
changeset
|
2562 if (block_begin == stub_begin()) stream->print_cr("[Stub Code]"); |
| 1204 | 2563 if (block_begin == deopt_handler_begin()) stream->print_cr("[Deopt Handler Code]"); |
|
1691
4a665be40fd3
6975855: don't emit deopt MH handler in C1 if not required
twisti
parents:
1644
diff
changeset
|
2564 |
|
4a665be40fd3
6975855: don't emit deopt MH handler in C1 if not required
twisti
parents:
1644
diff
changeset
|
2565 if (has_method_handle_invokes()) |
|
4a665be40fd3
6975855: don't emit deopt MH handler in C1 if not required
twisti
parents:
1644
diff
changeset
|
2566 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
|
2567 |
|
1155
4e6abf09f540
6912062: disassembler plugin needs to produce symbolic information in product mode
jrose
parents:
1141
diff
changeset
|
2568 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
|
2569 |
|
1155
4e6abf09f540
6912062: disassembler plugin needs to produce symbolic information in product mode
jrose
parents:
1141
diff
changeset
|
2570 if (block_begin == entry_point()) { |
|
4e6abf09f540
6912062: disassembler plugin needs to produce symbolic information in product mode
jrose
parents:
1141
diff
changeset
|
2571 methodHandle m = method(); |
|
4e6abf09f540
6912062: disassembler plugin needs to produce symbolic information in product mode
jrose
parents:
1141
diff
changeset
|
2572 if (m.not_null()) { |
|
4e6abf09f540
6912062: disassembler plugin needs to produce symbolic information in product mode
jrose
parents:
1141
diff
changeset
|
2573 stream->print(" # "); |
|
4e6abf09f540
6912062: disassembler plugin needs to produce symbolic information in product mode
jrose
parents:
1141
diff
changeset
|
2574 m->print_value_on(stream); |
|
4e6abf09f540
6912062: disassembler plugin needs to produce symbolic information in product mode
jrose
parents:
1141
diff
changeset
|
2575 stream->cr(); |
|
4e6abf09f540
6912062: disassembler plugin needs to produce symbolic information in product mode
jrose
parents:
1141
diff
changeset
|
2576 } |
|
4e6abf09f540
6912062: disassembler plugin needs to produce symbolic information in product mode
jrose
parents:
1141
diff
changeset
|
2577 if (m.not_null() && !is_osr_method()) { |
|
4e6abf09f540
6912062: disassembler plugin needs to produce symbolic information in product mode
jrose
parents:
1141
diff
changeset
|
2578 ResourceMark rm; |
|
4e6abf09f540
6912062: disassembler plugin needs to produce symbolic information in product mode
jrose
parents:
1141
diff
changeset
|
2579 int sizeargs = m->size_of_parameters(); |
|
4e6abf09f540
6912062: disassembler plugin needs to produce symbolic information in product mode
jrose
parents:
1141
diff
changeset
|
2580 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
|
2581 VMRegPair* regs = NEW_RESOURCE_ARRAY(VMRegPair, sizeargs); |
|
4e6abf09f540
6912062: disassembler plugin needs to produce symbolic information in product mode
jrose
parents:
1141
diff
changeset
|
2582 { |
|
4e6abf09f540
6912062: disassembler plugin needs to produce symbolic information in product mode
jrose
parents:
1141
diff
changeset
|
2583 int sig_index = 0; |
|
4e6abf09f540
6912062: disassembler plugin needs to produce symbolic information in product mode
jrose
parents:
1141
diff
changeset
|
2584 if (!m->is_static()) |
|
4e6abf09f540
6912062: disassembler plugin needs to produce symbolic information in product mode
jrose
parents:
1141
diff
changeset
|
2585 sig_bt[sig_index++] = T_OBJECT; // 'this' |
|
4e6abf09f540
6912062: disassembler plugin needs to produce symbolic information in product mode
jrose
parents:
1141
diff
changeset
|
2586 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
|
2587 BasicType t = ss.type(); |
|
4e6abf09f540
6912062: disassembler plugin needs to produce symbolic information in product mode
jrose
parents:
1141
diff
changeset
|
2588 sig_bt[sig_index++] = t; |
|
4e6abf09f540
6912062: disassembler plugin needs to produce symbolic information in product mode
jrose
parents:
1141
diff
changeset
|
2589 if (type2size[t] == 2) { |
|
4e6abf09f540
6912062: disassembler plugin needs to produce symbolic information in product mode
jrose
parents:
1141
diff
changeset
|
2590 sig_bt[sig_index++] = T_VOID; |
|
4e6abf09f540
6912062: disassembler plugin needs to produce symbolic information in product mode
jrose
parents:
1141
diff
changeset
|
2591 } else { |
|
4e6abf09f540
6912062: disassembler plugin needs to produce symbolic information in product mode
jrose
parents:
1141
diff
changeset
|
2592 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
|
2593 } |
|
4e6abf09f540
6912062: disassembler plugin needs to produce symbolic information in product mode
jrose
parents:
1141
diff
changeset
|
2594 } |
|
4e6abf09f540
6912062: disassembler plugin needs to produce symbolic information in product mode
jrose
parents:
1141
diff
changeset
|
2595 assert(sig_index == sizeargs, ""); |
|
4e6abf09f540
6912062: disassembler plugin needs to produce symbolic information in product mode
jrose
parents:
1141
diff
changeset
|
2596 } |
|
4e6abf09f540
6912062: disassembler plugin needs to produce symbolic information in product mode
jrose
parents:
1141
diff
changeset
|
2597 const char* spname = "sp"; // make arch-specific? |
|
4e6abf09f540
6912062: disassembler plugin needs to produce symbolic information in product mode
jrose
parents:
1141
diff
changeset
|
2598 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
|
2599 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
|
2600 int tab1 = 14, tab2 = 24; |
|
4e6abf09f540
6912062: disassembler plugin needs to produce symbolic information in product mode
jrose
parents:
1141
diff
changeset
|
2601 int sig_index = 0; |
|
4e6abf09f540
6912062: disassembler plugin needs to produce symbolic information in product mode
jrose
parents:
1141
diff
changeset
|
2602 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
|
2603 bool did_old_sp = false; |
|
4e6abf09f540
6912062: disassembler plugin needs to produce symbolic information in product mode
jrose
parents:
1141
diff
changeset
|
2604 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
|
2605 bool at_this = (arg_index == -1); |
|
4e6abf09f540
6912062: disassembler plugin needs to produce symbolic information in product mode
jrose
parents:
1141
diff
changeset
|
2606 bool at_old_sp = false; |
|
4e6abf09f540
6912062: disassembler plugin needs to produce symbolic information in product mode
jrose
parents:
1141
diff
changeset
|
2607 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
|
2608 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
|
2609 if (at_this) |
|
4e6abf09f540
6912062: disassembler plugin needs to produce symbolic information in product mode
jrose
parents:
1141
diff
changeset
|
2610 stream->print(" # this: "); |
|
4e6abf09f540
6912062: disassembler plugin needs to produce symbolic information in product mode
jrose
parents:
1141
diff
changeset
|
2611 else |
|
4e6abf09f540
6912062: disassembler plugin needs to produce symbolic information in product mode
jrose
parents:
1141
diff
changeset
|
2612 stream->print(" # parm%d: ", arg_index); |
|
4e6abf09f540
6912062: disassembler plugin needs to produce symbolic information in product mode
jrose
parents:
1141
diff
changeset
|
2613 stream->move_to(tab1); |
|
4e6abf09f540
6912062: disassembler plugin needs to produce symbolic information in product mode
jrose
parents:
1141
diff
changeset
|
2614 VMReg fst = regs[sig_index].first(); |
|
4e6abf09f540
6912062: disassembler plugin needs to produce symbolic information in product mode
jrose
parents:
1141
diff
changeset
|
2615 VMReg snd = regs[sig_index].second(); |
|
4e6abf09f540
6912062: disassembler plugin needs to produce symbolic information in product mode
jrose
parents:
1141
diff
changeset
|
2616 if (fst->is_reg()) { |
|
4e6abf09f540
6912062: disassembler plugin needs to produce symbolic information in product mode
jrose
parents:
1141
diff
changeset
|
2617 stream->print("%s", fst->name()); |
|
4e6abf09f540
6912062: disassembler plugin needs to produce symbolic information in product mode
jrose
parents:
1141
diff
changeset
|
2618 if (snd->is_valid()) { |
|
4e6abf09f540
6912062: disassembler plugin needs to produce symbolic information in product mode
jrose
parents:
1141
diff
changeset
|
2619 stream->print(":%s", snd->name()); |
|
4e6abf09f540
6912062: disassembler plugin needs to produce symbolic information in product mode
jrose
parents:
1141
diff
changeset
|
2620 } |
|
4e6abf09f540
6912062: disassembler plugin needs to produce symbolic information in product mode
jrose
parents:
1141
diff
changeset
|
2621 } else if (fst->is_stack()) { |
|
4e6abf09f540
6912062: disassembler plugin needs to produce symbolic information in product mode
jrose
parents:
1141
diff
changeset
|
2622 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
|
2623 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
|
2624 stream->print("[%s+0x%x]", spname, offset); |
|
4e6abf09f540
6912062: disassembler plugin needs to produce symbolic information in product mode
jrose
parents:
1141
diff
changeset
|
2625 } else { |
|
4e6abf09f540
6912062: disassembler plugin needs to produce symbolic information in product mode
jrose
parents:
1141
diff
changeset
|
2626 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
|
2627 } |
|
4e6abf09f540
6912062: disassembler plugin needs to produce symbolic information in product mode
jrose
parents:
1141
diff
changeset
|
2628 stream->print(" "); |
|
4e6abf09f540
6912062: disassembler plugin needs to produce symbolic information in product mode
jrose
parents:
1141
diff
changeset
|
2629 stream->move_to(tab2); |
|
4e6abf09f540
6912062: disassembler plugin needs to produce symbolic information in product mode
jrose
parents:
1141
diff
changeset
|
2630 stream->print("= "); |
|
4e6abf09f540
6912062: disassembler plugin needs to produce symbolic information in product mode
jrose
parents:
1141
diff
changeset
|
2631 if (at_this) { |
|
4e6abf09f540
6912062: disassembler plugin needs to produce symbolic information in product mode
jrose
parents:
1141
diff
changeset
|
2632 m->method_holder()->print_value_on(stream); |
|
4e6abf09f540
6912062: disassembler plugin needs to produce symbolic information in product mode
jrose
parents:
1141
diff
changeset
|
2633 } else { |
|
4e6abf09f540
6912062: disassembler plugin needs to produce symbolic information in product mode
jrose
parents:
1141
diff
changeset
|
2634 bool did_name = false; |
|
4e6abf09f540
6912062: disassembler plugin needs to produce symbolic information in product mode
jrose
parents:
1141
diff
changeset
|
2635 if (!at_this && ss.is_object()) { |
|
2177
3582bf76420e
6990754: Use native memory and reference counting to implement SymbolTable
coleenp
parents:
2142
diff
changeset
|
2636 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
|
2637 if (name != NULL) { |
|
4e6abf09f540
6912062: disassembler plugin needs to produce symbolic information in product mode
jrose
parents:
1141
diff
changeset
|
2638 name->print_value_on(stream); |
|
4e6abf09f540
6912062: disassembler plugin needs to produce symbolic information in product mode
jrose
parents:
1141
diff
changeset
|
2639 did_name = true; |
|
4e6abf09f540
6912062: disassembler plugin needs to produce symbolic information in product mode
jrose
parents:
1141
diff
changeset
|
2640 } |
|
4e6abf09f540
6912062: disassembler plugin needs to produce symbolic information in product mode
jrose
parents:
1141
diff
changeset
|
2641 } |
|
4e6abf09f540
6912062: disassembler plugin needs to produce symbolic information in product mode
jrose
parents:
1141
diff
changeset
|
2642 if (!did_name) |
|
4e6abf09f540
6912062: disassembler plugin needs to produce symbolic information in product mode
jrose
parents:
1141
diff
changeset
|
2643 stream->print("%s", type2name(t)); |
|
4e6abf09f540
6912062: disassembler plugin needs to produce symbolic information in product mode
jrose
parents:
1141
diff
changeset
|
2644 } |
|
4e6abf09f540
6912062: disassembler plugin needs to produce symbolic information in product mode
jrose
parents:
1141
diff
changeset
|
2645 if (at_old_sp) { |
|
4e6abf09f540
6912062: disassembler plugin needs to produce symbolic information in product mode
jrose
parents:
1141
diff
changeset
|
2646 stream->print(" (%s of caller)", spname); |
|
4e6abf09f540
6912062: disassembler plugin needs to produce symbolic information in product mode
jrose
parents:
1141
diff
changeset
|
2647 did_old_sp = true; |
|
4e6abf09f540
6912062: disassembler plugin needs to produce symbolic information in product mode
jrose
parents:
1141
diff
changeset
|
2648 } |
|
4e6abf09f540
6912062: disassembler plugin needs to produce symbolic information in product mode
jrose
parents:
1141
diff
changeset
|
2649 stream->cr(); |
|
4e6abf09f540
6912062: disassembler plugin needs to produce symbolic information in product mode
jrose
parents:
1141
diff
changeset
|
2650 sig_index += type2size[t]; |
|
4e6abf09f540
6912062: disassembler plugin needs to produce symbolic information in product mode
jrose
parents:
1141
diff
changeset
|
2651 arg_index += 1; |
|
4e6abf09f540
6912062: disassembler plugin needs to produce symbolic information in product mode
jrose
parents:
1141
diff
changeset
|
2652 if (!at_this) ss.next(); |
|
4e6abf09f540
6912062: disassembler plugin needs to produce symbolic information in product mode
jrose
parents:
1141
diff
changeset
|
2653 } |
|
4e6abf09f540
6912062: disassembler plugin needs to produce symbolic information in product mode
jrose
parents:
1141
diff
changeset
|
2654 if (!did_old_sp) { |
|
4e6abf09f540
6912062: disassembler plugin needs to produce symbolic information in product mode
jrose
parents:
1141
diff
changeset
|
2655 stream->print(" # "); |
|
4e6abf09f540
6912062: disassembler plugin needs to produce symbolic information in product mode
jrose
parents:
1141
diff
changeset
|
2656 stream->move_to(tab1); |
|
4e6abf09f540
6912062: disassembler plugin needs to produce symbolic information in product mode
jrose
parents:
1141
diff
changeset
|
2657 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
|
2658 stream->print(" (%s of caller)", spname); |
|
4e6abf09f540
6912062: disassembler plugin needs to produce symbolic information in product mode
jrose
parents:
1141
diff
changeset
|
2659 stream->cr(); |
|
4e6abf09f540
6912062: disassembler plugin needs to produce symbolic information in product mode
jrose
parents:
1141
diff
changeset
|
2660 } |
|
4e6abf09f540
6912062: disassembler plugin needs to produce symbolic information in product mode
jrose
parents:
1141
diff
changeset
|
2661 } |
|
4e6abf09f540
6912062: disassembler plugin needs to produce symbolic information in product mode
jrose
parents:
1141
diff
changeset
|
2662 } |
|
4e6abf09f540
6912062: disassembler plugin needs to produce symbolic information in product mode
jrose
parents:
1141
diff
changeset
|
2663 } |
|
4e6abf09f540
6912062: disassembler plugin needs to produce symbolic information in product mode
jrose
parents:
1141
diff
changeset
|
2664 |
| 0 | 2665 void nmethod::print_code_comment_on(outputStream* st, int column, u_char* begin, u_char* end) { |
| 2666 // First, find an oopmap in (begin, end]. | |
| 2667 // We use the odd half-closed interval so that oop maps and scope descs | |
| 2668 // which are tied to the byte after a call are printed with the call itself. | |
| 1748 | 2669 address base = code_begin(); |
| 0 | 2670 OopMapSet* oms = oop_maps(); |
| 2671 if (oms != NULL) { | |
| 2672 for (int i = 0, imax = oms->size(); i < imax; i++) { | |
| 2673 OopMap* om = oms->at(i); | |
| 2674 address pc = base + om->offset(); | |
| 2675 if (pc > begin) { | |
| 2676 if (pc <= end) { | |
|
100
c7c777385a15
6667042: PrintAssembly option does not work without special plugin
jrose
parents:
30
diff
changeset
|
2677 st->move_to(column); |
|
c7c777385a15
6667042: PrintAssembly option does not work without special plugin
jrose
parents:
30
diff
changeset
|
2678 st->print("; "); |
|
c7c777385a15
6667042: PrintAssembly option does not work without special plugin
jrose
parents:
30
diff
changeset
|
2679 om->print_on(st); |
| 0 | 2680 } |
| 2681 break; | |
| 2682 } | |
| 2683 } | |
| 2684 } | |
|
100
c7c777385a15
6667042: PrintAssembly option does not work without special plugin
jrose
parents:
30
diff
changeset
|
2685 |
|
c7c777385a15
6667042: PrintAssembly option does not work without special plugin
jrose
parents:
30
diff
changeset
|
2686 // Print any debug info present at this pc. |
| 0 | 2687 ScopeDesc* sd = scope_desc_in(begin, end); |
| 2688 if (sd != NULL) { | |
|
100
c7c777385a15
6667042: PrintAssembly option does not work without special plugin
jrose
parents:
30
diff
changeset
|
2689 st->move_to(column); |
| 0 | 2690 if (sd->bci() == SynchronizationEntryBCI) { |
| 2691 st->print(";*synchronization entry"); | |
| 2692 } else { | |
| 2693 if (sd->method().is_null()) { | |
|
100
c7c777385a15
6667042: PrintAssembly option does not work without special plugin
jrose
parents:
30
diff
changeset
|
2694 st->print("method is NULL"); |
| 0 | 2695 } else if (sd->method()->is_native()) { |
|
100
c7c777385a15
6667042: PrintAssembly option does not work without special plugin
jrose
parents:
30
diff
changeset
|
2696 st->print("method is native"); |
| 0 | 2697 } else { |
| 2142 | 2698 Bytecodes::Code bc = sd->method()->java_code_at(sd->bci()); |
| 0 | 2699 st->print(";*%s", Bytecodes::name(bc)); |
| 2700 switch (bc) { | |
| 2701 case Bytecodes::_invokevirtual: | |
| 2702 case Bytecodes::_invokespecial: | |
| 2703 case Bytecodes::_invokestatic: | |
| 2704 case Bytecodes::_invokeinterface: | |
| 2705 { | |
| 2142 | 2706 Bytecode_invoke invoke(sd->method(), sd->bci()); |
| 0 | 2707 st->print(" "); |
| 2142 | 2708 if (invoke.name() != NULL) |
| 2709 invoke.name()->print_symbol_on(st); | |
| 0 | 2710 else |
| 2711 st->print("<UNKNOWN>"); | |
| 2712 break; | |
| 2713 } | |
| 2714 case Bytecodes::_getfield: | |
| 2715 case Bytecodes::_putfield: | |
| 2716 case Bytecodes::_getstatic: | |
| 2717 case Bytecodes::_putstatic: | |
| 2718 { | |
| 2142 | 2719 Bytecode_field field(sd->method(), sd->bci()); |
| 0 | 2720 st->print(" "); |
| 2142 | 2721 if (field.name() != NULL) |
| 2722 field.name()->print_symbol_on(st); | |
| 0 | 2723 else |
| 2724 st->print("<UNKNOWN>"); | |
| 2725 } | |
| 2726 } | |
| 2727 } | |
| 2728 } | |
|
100
c7c777385a15
6667042: PrintAssembly option does not work without special plugin
jrose
parents:
30
diff
changeset
|
2729 |
| 0 | 2730 // Print all scopes |
| 2731 for (;sd != NULL; sd = sd->sender()) { | |
|
100
c7c777385a15
6667042: PrintAssembly option does not work without special plugin
jrose
parents:
30
diff
changeset
|
2732 st->move_to(column); |
| 0 | 2733 st->print("; -"); |
| 2734 if (sd->method().is_null()) { | |
|
100
c7c777385a15
6667042: PrintAssembly option does not work without special plugin
jrose
parents:
30
diff
changeset
|
2735 st->print("method is NULL"); |
| 0 | 2736 } else { |
| 2737 sd->method()->print_short_name(st); | |
| 2738 } | |
| 2739 int lineno = sd->method()->line_number_from_bci(sd->bci()); | |
| 2740 if (lineno != -1) { | |
| 2741 st->print("@%d (line %d)", sd->bci(), lineno); | |
| 2742 } else { | |
| 2743 st->print("@%d", sd->bci()); | |
| 2744 } | |
| 2745 st->cr(); | |
| 2746 } | |
| 2747 } | |
| 2748 | |
| 2749 // Print relocation information | |
| 2750 const char* str = reloc_string_for(begin, end); | |
| 2751 if (str != NULL) { | |
| 2752 if (sd != NULL) st->cr(); | |
|
100
c7c777385a15
6667042: PrintAssembly option does not work without special plugin
jrose
parents:
30
diff
changeset
|
2753 st->move_to(column); |
| 0 | 2754 st->print("; {%s}", str); |
| 2755 } | |
| 1748 | 2756 int cont_offset = ImplicitExceptionTable(this).at(begin - code_begin()); |
| 0 | 2757 if (cont_offset != 0) { |
|
100
c7c777385a15
6667042: PrintAssembly option does not work without special plugin
jrose
parents:
30
diff
changeset
|
2758 st->move_to(column); |
| 1748 | 2759 st->print("; implicit exception: dispatches to " INTPTR_FORMAT, code_begin() + cont_offset); |
| 0 | 2760 } |
| 2761 | |
| 2762 } | |
| 2763 | |
|
100
c7c777385a15
6667042: PrintAssembly option does not work without special plugin
jrose
parents:
30
diff
changeset
|
2764 #ifndef PRODUCT |
|
c7c777385a15
6667042: PrintAssembly option does not work without special plugin
jrose
parents:
30
diff
changeset
|
2765 |
| 0 | 2766 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
|
2767 st->print("nmethod"); |
|
3d58a4983660
7022998: JSR 292 recursive method handle calls inline themselves infinitely
twisti
parents:
2376
diff
changeset
|
2768 print_on(st, NULL); |
| 0 | 2769 } |
| 2770 | |
| 2771 void nmethod::print_calls(outputStream* st) { | |
| 2772 RelocIterator iter(this); | |
| 2773 while (iter.next()) { | |
| 2774 switch (iter.type()) { | |
| 2775 case relocInfo::virtual_call_type: | |
| 2776 case relocInfo::opt_virtual_call_type: { | |
| 2777 VerifyMutexLocker mc(CompiledIC_lock); | |
| 2778 CompiledIC_at(iter.reloc())->print(); | |
| 2779 break; | |
| 2780 } | |
| 2781 case relocInfo::static_call_type: | |
| 2782 st->print_cr("Static call at " INTPTR_FORMAT, iter.reloc()->addr()); | |
| 2783 compiledStaticCall_at(iter.reloc())->print(); | |
| 2784 break; | |
| 2785 } | |
| 2786 } | |
| 2787 } | |
| 2788 | |
| 2789 void nmethod::print_handler_table() { | |
| 2790 ExceptionHandlerTable(this).print(); | |
| 2791 } | |
| 2792 | |
| 2793 void nmethod::print_nul_chk_table() { | |
| 1748 | 2794 ImplicitExceptionTable(this).print(code_begin()); |
| 0 | 2795 } |
| 2796 | |
| 2797 void nmethod::print_statistics() { | |
| 2798 ttyLocker ttyl; | |
| 2799 if (xtty != NULL) xtty->head("statistics type='nmethod'"); | |
| 2800 nmethod_stats.print_native_nmethod_stats(); | |
| 2801 nmethod_stats.print_nmethod_stats(); | |
| 2802 DebugInformationRecorder::print_statistics(); | |
| 2803 nmethod_stats.print_pc_stats(); | |
| 2804 Dependencies::print_statistics(); | |
| 2805 if (xtty != NULL) xtty->tail("statistics"); | |
| 2806 } | |
| 2807 | |
| 2808 #endif // PRODUCT |