Mercurial > hg > truffle
annotate src/share/vm/code/nmethod.cpp @ 13641:5a9afbf72714
Add a speculation oop for uncommon trap deoptimization. Save it in the SpeculationLog during deoptimization.
author | Gilles Duboscq <duboscq@ssw.jku.at> |
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date | Thu, 12 Dec 2013 15:13:02 +0100 |
parents | 02f27ecb4f3a |
children | cd22c8dbda4f d8041d695d19 |
rev | line source |
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0 | 1 /* |
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2 * Copyright (c) 1997, 2013, Oracle and/or its affiliates. All rights reserved. |
0 | 3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. |
4 * | |
5 * This code is free software; you can redistribute it and/or modify it | |
6 * under the terms of the GNU General Public License version 2 only, as | |
7 * published by the Free Software Foundation. | |
8 * | |
9 * This code is distributed in the hope that it will be useful, but WITHOUT | |
10 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or | |
11 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License | |
12 * version 2 for more details (a copy is included in the LICENSE file that | |
13 * accompanied this code). | |
14 * | |
15 * You should have received a copy of the GNU General Public License version | |
16 * 2 along with this work; if not, write to the Free Software Foundation, | |
17 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. | |
18 * | |
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19 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA |
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20 * or visit www.oracle.com if you need additional information or have any |
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21 * questions. |
0 | 22 * |
23 */ | |
24 | |
1972 | 25 #include "precompiled.hpp" |
26 #include "code/codeCache.hpp" | |
27 #include "code/compiledIC.hpp" | |
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28 #include "code/dependencies.hpp" |
1972 | 29 #include "code/nmethod.hpp" |
30 #include "code/scopeDesc.hpp" | |
31 #include "compiler/abstractCompiler.hpp" | |
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32 #include "compiler/compileBroker.hpp" |
1972 | 33 #include "compiler/compileLog.hpp" |
34 #include "compiler/compilerOracle.hpp" | |
35 #include "compiler/disassembler.hpp" | |
36 #include "interpreter/bytecode.hpp" | |
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37 #include "oops/methodData.hpp" |
1972 | 38 #include "prims/jvmtiRedefineClassesTrace.hpp" |
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39 #include "prims/jvmtiImpl.hpp" |
1972 | 40 #include "runtime/sharedRuntime.hpp" |
41 #include "runtime/sweeper.hpp" | |
42 #include "utilities/dtrace.hpp" | |
43 #include "utilities/events.hpp" | |
44 #include "utilities/xmlstream.hpp" | |
45 #ifdef SHARK | |
46 #include "shark/sharkCompiler.hpp" | |
47 #endif | |
9707 | 48 #ifdef GRAAL |
49 #include "graal/graalJavaAccess.hpp" | |
50 #endif | |
0 | 51 |
52 #ifdef DTRACE_ENABLED | |
53 | |
54 // Only bother with this argument setup if dtrace is available | |
55 | |
4006 | 56 #ifndef USDT2 |
0 | 57 HS_DTRACE_PROBE_DECL8(hotspot, compiled__method__load, |
58 const char*, int, const char*, int, const char*, int, void*, size_t); | |
59 | |
60 HS_DTRACE_PROBE_DECL6(hotspot, compiled__method__unload, | |
61 char*, int, char*, int, char*, int); | |
62 | |
63 #define DTRACE_METHOD_UNLOAD_PROBE(method) \ | |
64 { \ | |
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65 Method* m = (method); \ |
0 | 66 if (m != NULL) { \ |
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67 Symbol* klass_name = m->klass_name(); \ |
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68 Symbol* name = m->name(); \ |
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69 Symbol* signature = m->signature(); \ |
0 | 70 HS_DTRACE_PROBE6(hotspot, compiled__method__unload, \ |
71 klass_name->bytes(), klass_name->utf8_length(), \ | |
72 name->bytes(), name->utf8_length(), \ | |
73 signature->bytes(), signature->utf8_length()); \ | |
74 } \ | |
75 } | |
4006 | 76 #else /* USDT2 */ |
77 #define DTRACE_METHOD_UNLOAD_PROBE(method) \ | |
78 { \ | |
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79 Method* m = (method); \ |
4006 | 80 if (m != NULL) { \ |
81 Symbol* klass_name = m->klass_name(); \ | |
82 Symbol* name = m->name(); \ | |
83 Symbol* signature = m->signature(); \ | |
84 HOTSPOT_COMPILED_METHOD_UNLOAD( \ | |
85 (char *) klass_name->bytes(), klass_name->utf8_length(), \ | |
86 (char *) name->bytes(), name->utf8_length(), \ | |
87 (char *) signature->bytes(), signature->utf8_length()); \ | |
88 } \ | |
89 } | |
90 #endif /* USDT2 */ | |
0 | 91 |
92 #else // ndef DTRACE_ENABLED | |
93 | |
94 #define DTRACE_METHOD_UNLOAD_PROBE(method) | |
95 | |
96 #endif | |
97 | |
98 bool nmethod::is_compiled_by_c1() const { | |
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99 if (compiler() == NULL) { |
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100 return false; |
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101 } |
0 | 102 return compiler()->is_c1(); |
103 } | |
9707 | 104 bool nmethod::is_compiled_by_graal() const { |
105 if (compiler() == NULL || method() == NULL) return false; // can happen during debug printing | |
106 if (is_native_method()) return false; | |
107 return compiler()->is_graal(); | |
108 } | |
0 | 109 bool nmethod::is_compiled_by_c2() const { |
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110 if (compiler() == NULL) { |
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111 return false; |
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112 } |
0 | 113 return compiler()->is_c2(); |
114 } | |
1692 | 115 bool nmethod::is_compiled_by_shark() const { |
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116 if (compiler() == NULL) { |
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117 return false; |
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118 } |
1692 | 119 return compiler()->is_shark(); |
120 } | |
0 | 121 |
122 | |
123 | |
124 //--------------------------------------------------------------------------------- | |
125 // NMethod statistics | |
126 // They are printed under various flags, including: | |
127 // PrintC1Statistics, PrintOptoStatistics, LogVMOutput, and LogCompilation. | |
128 // (In the latter two cases, they like other stats are printed to the log only.) | |
129 | |
130 #ifndef PRODUCT | |
131 // These variables are put into one block to reduce relocations | |
132 // and make it simpler to print from the debugger. | |
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133 struct java_nmethod_stats_struct { |
0 | 134 int nmethod_count; |
135 int total_size; | |
136 int relocation_size; | |
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137 int consts_size; |
1748 | 138 int insts_size; |
0 | 139 int stub_size; |
140 int scopes_data_size; | |
141 int scopes_pcs_size; | |
142 int dependencies_size; | |
143 int handler_table_size; | |
144 int nul_chk_table_size; | |
145 int oops_size; | |
146 | |
147 void note_nmethod(nmethod* nm) { | |
148 nmethod_count += 1; | |
149 total_size += nm->size(); | |
150 relocation_size += nm->relocation_size(); | |
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151 consts_size += nm->consts_size(); |
1748 | 152 insts_size += nm->insts_size(); |
0 | 153 stub_size += nm->stub_size(); |
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154 oops_size += nm->oops_size(); |
0 | 155 scopes_data_size += nm->scopes_data_size(); |
156 scopes_pcs_size += nm->scopes_pcs_size(); | |
157 dependencies_size += nm->dependencies_size(); | |
158 handler_table_size += nm->handler_table_size(); | |
159 nul_chk_table_size += nm->nul_chk_table_size(); | |
160 } | |
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161 void print_nmethod_stats(const char* name) { |
0 | 162 if (nmethod_count == 0) return; |
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163 tty->print_cr("Statistics for %d bytecoded nmethods for %s:", nmethod_count, name); |
0 | 164 if (total_size != 0) tty->print_cr(" total in heap = %d", total_size); |
165 if (relocation_size != 0) tty->print_cr(" relocation = %d", relocation_size); | |
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166 if (consts_size != 0) tty->print_cr(" constants = %d", consts_size); |
1748 | 167 if (insts_size != 0) tty->print_cr(" main code = %d", insts_size); |
0 | 168 if (stub_size != 0) tty->print_cr(" stub code = %d", stub_size); |
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169 if (oops_size != 0) tty->print_cr(" oops = %d", oops_size); |
0 | 170 if (scopes_data_size != 0) tty->print_cr(" scopes data = %d", scopes_data_size); |
171 if (scopes_pcs_size != 0) tty->print_cr(" scopes pcs = %d", scopes_pcs_size); | |
172 if (dependencies_size != 0) tty->print_cr(" dependencies = %d", dependencies_size); | |
173 if (handler_table_size != 0) tty->print_cr(" handler table = %d", handler_table_size); | |
174 if (nul_chk_table_size != 0) tty->print_cr(" nul chk table = %d", nul_chk_table_size); | |
175 } | |
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176 }; |
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177 |
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178 struct native_nmethod_stats_struct { |
0 | 179 int native_nmethod_count; |
180 int native_total_size; | |
181 int native_relocation_size; | |
1748 | 182 int native_insts_size; |
0 | 183 int native_oops_size; |
184 void note_native_nmethod(nmethod* nm) { | |
185 native_nmethod_count += 1; | |
186 native_total_size += nm->size(); | |
187 native_relocation_size += nm->relocation_size(); | |
1748 | 188 native_insts_size += nm->insts_size(); |
0 | 189 native_oops_size += nm->oops_size(); |
190 } | |
191 void print_native_nmethod_stats() { | |
192 if (native_nmethod_count == 0) return; | |
193 tty->print_cr("Statistics for %d native nmethods:", native_nmethod_count); | |
194 if (native_total_size != 0) tty->print_cr(" N. total size = %d", native_total_size); | |
195 if (native_relocation_size != 0) tty->print_cr(" N. relocation = %d", native_relocation_size); | |
1748 | 196 if (native_insts_size != 0) tty->print_cr(" N. main code = %d", native_insts_size); |
0 | 197 if (native_oops_size != 0) tty->print_cr(" N. oops = %d", native_oops_size); |
198 } | |
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199 }; |
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200 |
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201 struct pc_nmethod_stats_struct { |
0 | 202 int pc_desc_resets; // number of resets (= number of caches) |
203 int pc_desc_queries; // queries to nmethod::find_pc_desc | |
204 int pc_desc_approx; // number of those which have approximate true | |
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205 int pc_desc_repeats; // number of _pc_descs[0] hits |
0 | 206 int pc_desc_hits; // number of LRU cache hits |
207 int pc_desc_tests; // total number of PcDesc examinations | |
208 int pc_desc_searches; // total number of quasi-binary search steps | |
209 int pc_desc_adds; // number of LUR cache insertions | |
210 | |
211 void print_pc_stats() { | |
212 tty->print_cr("PcDesc Statistics: %d queries, %.2f comparisons per query", | |
213 pc_desc_queries, | |
214 (double)(pc_desc_tests + pc_desc_searches) | |
215 / pc_desc_queries); | |
216 tty->print_cr(" caches=%d queries=%d/%d, hits=%d+%d, tests=%d+%d, adds=%d", | |
217 pc_desc_resets, | |
218 pc_desc_queries, pc_desc_approx, | |
219 pc_desc_repeats, pc_desc_hits, | |
220 pc_desc_tests, pc_desc_searches, pc_desc_adds); | |
221 } | |
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222 }; |
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223 |
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224 #ifdef COMPILER1 |
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225 static java_nmethod_stats_struct c1_java_nmethod_stats; |
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226 #endif |
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227 #ifdef COMPILER2 |
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228 static java_nmethod_stats_struct c2_java_nmethod_stats; |
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229 #endif |
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230 #ifdef GRAAL |
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231 static java_nmethod_stats_struct graal_java_nmethod_stats; |
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232 #endif |
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233 static java_nmethod_stats_struct unknown_java_nmethod_stats; |
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234 |
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235 static native_nmethod_stats_struct native_nmethod_stats; |
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236 static pc_nmethod_stats_struct pc_nmethod_stats; |
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237 |
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238 static void note_java_nmethod(nmethod* nm) { |
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239 #ifdef COMPILER1 |
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240 if (nm->is_compiled_by_c1()) { |
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241 c1_java_nmethod_stats.note_nmethod(nm); |
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242 } else |
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243 #endif |
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244 #ifdef COMPILER2 |
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245 if (nm->is_compiled_by_c2()) { |
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246 c2_java_nmethod_stats.note_nmethod(nm); |
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247 } else |
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248 #endif |
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249 #ifdef GRAAL |
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250 if (nm->is_compiled_by_graal()) { |
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251 graal_java_nmethod_stats.note_nmethod(nm); |
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252 } else |
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253 #endif |
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254 { |
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255 unknown_java_nmethod_stats.note_nmethod(nm); |
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256 } |
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257 } |
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258 #endif |
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259 |
0 | 260 //--------------------------------------------------------------------------------- |
261 | |
262 | |
263 ExceptionCache::ExceptionCache(Handle exception, address pc, address handler) { | |
264 assert(pc != NULL, "Must be non null"); | |
265 assert(exception.not_null(), "Must be non null"); | |
266 assert(handler != NULL, "Must be non null"); | |
267 | |
268 _count = 0; | |
269 _exception_type = exception->klass(); | |
270 _next = NULL; | |
271 | |
272 add_address_and_handler(pc,handler); | |
273 } | |
274 | |
275 | |
276 address ExceptionCache::match(Handle exception, address pc) { | |
277 assert(pc != NULL,"Must be non null"); | |
278 assert(exception.not_null(),"Must be non null"); | |
279 if (exception->klass() == exception_type()) { | |
280 return (test_address(pc)); | |
281 } | |
282 | |
283 return NULL; | |
284 } | |
285 | |
286 | |
287 bool ExceptionCache::match_exception_with_space(Handle exception) { | |
288 assert(exception.not_null(),"Must be non null"); | |
289 if (exception->klass() == exception_type() && count() < cache_size) { | |
290 return true; | |
291 } | |
292 return false; | |
293 } | |
294 | |
295 | |
296 address ExceptionCache::test_address(address addr) { | |
297 for (int i=0; i<count(); i++) { | |
298 if (pc_at(i) == addr) { | |
299 return handler_at(i); | |
300 } | |
301 } | |
302 return NULL; | |
303 } | |
304 | |
305 | |
306 bool ExceptionCache::add_address_and_handler(address addr, address handler) { | |
307 if (test_address(addr) == handler) return true; | |
308 if (count() < cache_size) { | |
309 set_pc_at(count(),addr); | |
310 set_handler_at(count(), handler); | |
311 increment_count(); | |
312 return true; | |
313 } | |
314 return false; | |
315 } | |
316 | |
317 | |
318 // private method for handling exception cache | |
319 // These methods are private, and used to manipulate the exception cache | |
320 // directly. | |
321 ExceptionCache* nmethod::exception_cache_entry_for_exception(Handle exception) { | |
322 ExceptionCache* ec = exception_cache(); | |
323 while (ec != NULL) { | |
324 if (ec->match_exception_with_space(exception)) { | |
325 return ec; | |
326 } | |
327 ec = ec->next(); | |
328 } | |
329 return NULL; | |
330 } | |
331 | |
332 | |
333 //----------------------------------------------------------------------------- | |
334 | |
335 | |
336 // Helper used by both find_pc_desc methods. | |
337 static inline bool match_desc(PcDesc* pc, int pc_offset, bool approximate) { | |
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338 NOT_PRODUCT(++pc_nmethod_stats.pc_desc_tests); |
0 | 339 if (!approximate) |
340 return pc->pc_offset() == pc_offset; | |
341 else | |
342 return (pc-1)->pc_offset() < pc_offset && pc_offset <= pc->pc_offset(); | |
343 } | |
344 | |
345 void PcDescCache::reset_to(PcDesc* initial_pc_desc) { | |
346 if (initial_pc_desc == NULL) { | |
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347 _pc_descs[0] = NULL; // native method; no PcDescs at all |
0 | 348 return; |
349 } | |
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350 NOT_PRODUCT(++pc_nmethod_stats.pc_desc_resets); |
0 | 351 // reset the cache by filling it with benign (non-null) values |
352 assert(initial_pc_desc->pc_offset() < 0, "must be sentinel"); | |
353 for (int i = 0; i < cache_size; i++) | |
354 _pc_descs[i] = initial_pc_desc; | |
355 } | |
356 | |
357 PcDesc* PcDescCache::find_pc_desc(int pc_offset, bool approximate) { | |
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358 NOT_PRODUCT(++pc_nmethod_stats.pc_desc_queries); |
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359 NOT_PRODUCT(if (approximate) ++pc_nmethod_stats.pc_desc_approx); |
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360 |
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361 // Note: one might think that caching the most recently |
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362 // read value separately would be a win, but one would be |
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363 // wrong. When many threads are updating it, the cache |
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364 // line it's in would bounce between caches, negating |
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365 // any benefit. |
0 | 366 |
367 // In order to prevent race conditions do not load cache elements | |
368 // repeatedly, but use a local copy: | |
369 PcDesc* res; | |
370 | |
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371 // Step one: Check the most recently added value. |
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372 res = _pc_descs[0]; |
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373 if (res == NULL) return NULL; // native method; no PcDescs at all |
0 | 374 if (match_desc(res, pc_offset, approximate)) { |
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375 NOT_PRODUCT(++pc_nmethod_stats.pc_desc_repeats); |
0 | 376 return res; |
377 } | |
378 | |
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379 // Step two: Check the rest of the LRU cache. |
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380 for (int i = 1; i < cache_size; ++i) { |
0 | 381 res = _pc_descs[i]; |
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382 if (res->pc_offset() < 0) break; // optimization: skip empty cache |
0 | 383 if (match_desc(res, pc_offset, approximate)) { |
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384 NOT_PRODUCT(++pc_nmethod_stats.pc_desc_hits); |
0 | 385 return res; |
386 } | |
387 } | |
388 | |
389 // Report failure. | |
390 return NULL; | |
391 } | |
392 | |
393 void PcDescCache::add_pc_desc(PcDesc* pc_desc) { | |
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394 NOT_PRODUCT(++pc_nmethod_stats.pc_desc_adds); |
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395 // Update the LRU cache by shifting pc_desc forward. |
0 | 396 for (int i = 0; i < cache_size; i++) { |
397 PcDesc* next = _pc_descs[i]; | |
398 _pc_descs[i] = pc_desc; | |
399 pc_desc = next; | |
400 } | |
401 } | |
402 | |
403 // adjust pcs_size so that it is a multiple of both oopSize and | |
404 // sizeof(PcDesc) (assumes that if sizeof(PcDesc) is not a multiple | |
405 // of oopSize, then 2*sizeof(PcDesc) is) | |
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406 static int adjust_pcs_size(int pcs_size) { |
0 | 407 int nsize = round_to(pcs_size, oopSize); |
408 if ((nsize % sizeof(PcDesc)) != 0) { | |
409 nsize = pcs_size + sizeof(PcDesc); | |
410 } | |
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411 assert((nsize % oopSize) == 0, "correct alignment"); |
0 | 412 return nsize; |
413 } | |
414 | |
415 //----------------------------------------------------------------------------- | |
416 | |
417 | |
418 void nmethod::add_exception_cache_entry(ExceptionCache* new_entry) { | |
419 assert(ExceptionCache_lock->owned_by_self(),"Must hold the ExceptionCache_lock"); | |
420 assert(new_entry != NULL,"Must be non null"); | |
421 assert(new_entry->next() == NULL, "Must be null"); | |
422 | |
423 if (exception_cache() != NULL) { | |
424 new_entry->set_next(exception_cache()); | |
425 } | |
426 set_exception_cache(new_entry); | |
427 } | |
428 | |
429 void nmethod::remove_from_exception_cache(ExceptionCache* ec) { | |
430 ExceptionCache* prev = NULL; | |
431 ExceptionCache* curr = exception_cache(); | |
432 assert(curr != NULL, "nothing to remove"); | |
433 // find the previous and next entry of ec | |
434 while (curr != ec) { | |
435 prev = curr; | |
436 curr = curr->next(); | |
437 assert(curr != NULL, "ExceptionCache not found"); | |
438 } | |
439 // now: curr == ec | |
440 ExceptionCache* next = curr->next(); | |
441 if (prev == NULL) { | |
442 set_exception_cache(next); | |
443 } else { | |
444 prev->set_next(next); | |
445 } | |
446 delete curr; | |
447 } | |
448 | |
449 | |
450 // public method for accessing the exception cache | |
451 // These are the public access methods. | |
452 address nmethod::handler_for_exception_and_pc(Handle exception, address pc) { | |
453 // We never grab a lock to read the exception cache, so we may | |
454 // have false negatives. This is okay, as it can only happen during | |
455 // the first few exception lookups for a given nmethod. | |
456 ExceptionCache* ec = exception_cache(); | |
457 while (ec != NULL) { | |
458 address ret_val; | |
459 if ((ret_val = ec->match(exception,pc)) != NULL) { | |
460 return ret_val; | |
461 } | |
462 ec = ec->next(); | |
463 } | |
464 return NULL; | |
465 } | |
466 | |
467 | |
468 void nmethod::add_handler_for_exception_and_pc(Handle exception, address pc, address handler) { | |
469 // There are potential race conditions during exception cache updates, so we | |
470 // must own the ExceptionCache_lock before doing ANY modifications. Because | |
605 | 471 // we don't lock during reads, it is possible to have several threads attempt |
0 | 472 // to update the cache with the same data. We need to check for already inserted |
473 // copies of the current data before adding it. | |
474 | |
475 MutexLocker ml(ExceptionCache_lock); | |
476 ExceptionCache* target_entry = exception_cache_entry_for_exception(exception); | |
477 | |
478 if (target_entry == NULL || !target_entry->add_address_and_handler(pc,handler)) { | |
479 target_entry = new ExceptionCache(exception,pc,handler); | |
480 add_exception_cache_entry(target_entry); | |
481 } | |
482 } | |
483 | |
484 | |
485 //-------------end of code for ExceptionCache-------------- | |
486 | |
487 | |
488 int nmethod::total_size() const { | |
489 return | |
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490 consts_size() + |
1748 | 491 insts_size() + |
0 | 492 stub_size() + |
493 scopes_data_size() + | |
494 scopes_pcs_size() + | |
495 handler_table_size() + | |
496 nul_chk_table_size(); | |
497 } | |
498 | |
499 const char* nmethod::compile_kind() const { | |
500 if (is_osr_method()) return "osr"; | |
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501 if (method() != NULL && is_native_method()) return "c2n"; |
0 | 502 return NULL; |
503 } | |
504 | |
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505 // Fill in default values for various flag fields |
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506 void nmethod::init_defaults() { |
13441 | 507 _state = in_use; |
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508 _marked_for_reclamation = 0; |
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509 _has_flushed_dependencies = 0; |
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510 _has_unsafe_access = 0; |
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511 _has_method_handle_invokes = 0; |
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512 _lazy_critical_native = 0; |
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513 _has_wide_vectors = 0; |
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514 _marked_for_deoptimization = 0; |
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515 _lock_count = 0; |
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516 _stack_traversal_mark = 0; |
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517 _unload_reported = false; // jvmti state |
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518 |
1726 | 519 #ifdef ASSERT |
520 _oops_are_stale = false; | |
521 #endif | |
522 | |
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523 _oops_do_mark_link = NULL; |
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524 _jmethod_id = NULL; |
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525 _osr_link = NULL; |
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526 _scavenge_root_link = NULL; |
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527 _scavenge_root_state = 0; |
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528 _compiler = NULL; |
9707 | 529 #ifdef GRAAL |
530 _graal_installed_code = NULL; | |
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531 _speculation_log = NULL; |
9707 | 532 #endif |
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533 #ifdef HAVE_DTRACE_H |
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534 _trap_offset = 0; |
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535 #endif // def HAVE_DTRACE_H |
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536 } |
0 | 537 |
538 nmethod* nmethod::new_native_nmethod(methodHandle method, | |
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539 int compile_id, |
0 | 540 CodeBuffer *code_buffer, |
541 int vep_offset, | |
542 int frame_complete, | |
543 int frame_size, | |
544 ByteSize basic_lock_owner_sp_offset, | |
545 ByteSize basic_lock_sp_offset, | |
546 OopMapSet* oop_maps) { | |
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547 code_buffer->finalize_oop_references(method); |
0 | 548 // create nmethod |
549 nmethod* nm = NULL; | |
550 { | |
551 MutexLockerEx mu(CodeCache_lock, Mutex::_no_safepoint_check_flag); | |
552 int native_nmethod_size = allocation_size(code_buffer, sizeof(nmethod)); | |
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553 CodeOffsets offsets; |
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554 offsets.set_value(CodeOffsets::Verified_Entry, vep_offset); |
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555 offsets.set_value(CodeOffsets::Frame_Complete, frame_complete); |
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556 nm = new (native_nmethod_size) nmethod(method(), native_nmethod_size, |
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557 compile_id, &offsets, |
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558 code_buffer, frame_size, |
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559 basic_lock_owner_sp_offset, |
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560 basic_lock_sp_offset, oop_maps); |
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561 NOT_PRODUCT(if (nm != NULL) note_java_nmethod(nm)); |
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562 if (PrintAssembly && nm != NULL) { |
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563 Disassembler::decode(nm); |
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564 } |
0 | 565 } |
566 // verify nmethod | |
567 debug_only(if (nm) nm->verify();) // might block | |
568 | |
569 if (nm != NULL) { | |
570 nm->log_new_nmethod(); | |
571 } | |
572 | |
573 return nm; | |
574 } | |
575 | |
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576 #ifdef HAVE_DTRACE_H |
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577 nmethod* nmethod::new_dtrace_nmethod(methodHandle method, |
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578 CodeBuffer *code_buffer, |
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579 int vep_offset, |
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580 int trap_offset, |
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581 int frame_complete, |
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582 int frame_size) { |
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583 code_buffer->finalize_oop_references(method); |
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584 // create nmethod |
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585 nmethod* nm = NULL; |
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586 { |
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587 MutexLockerEx mu(CodeCache_lock, Mutex::_no_safepoint_check_flag); |
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588 int nmethod_size = allocation_size(code_buffer, sizeof(nmethod)); |
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589 CodeOffsets offsets; |
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590 offsets.set_value(CodeOffsets::Verified_Entry, vep_offset); |
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591 offsets.set_value(CodeOffsets::Dtrace_trap, trap_offset); |
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592 offsets.set_value(CodeOffsets::Frame_Complete, frame_complete); |
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593 |
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594 nm = new (nmethod_size) nmethod(method(), nmethod_size, |
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595 &offsets, code_buffer, frame_size); |
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596 |
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597 NOT_PRODUCT(if (nm != NULL) note_java_nmethod(nm)); |
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598 if (PrintAssembly && nm != NULL) { |
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599 Disassembler::decode(nm); |
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600 } |
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601 } |
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602 // verify nmethod |
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603 debug_only(if (nm) nm->verify();) // might block |
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604 |
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605 if (nm != NULL) { |
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606 nm->log_new_nmethod(); |
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607 } |
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608 |
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609 return nm; |
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610 } |
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611 |
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612 #endif // def HAVE_DTRACE_H |
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613 |
0 | 614 nmethod* nmethod::new_nmethod(methodHandle method, |
615 int compile_id, | |
616 int entry_bci, | |
617 CodeOffsets* offsets, | |
618 int orig_pc_offset, | |
619 DebugInformationRecorder* debug_info, | |
620 Dependencies* dependencies, | |
621 CodeBuffer* code_buffer, int frame_size, | |
622 OopMapSet* oop_maps, | |
623 ExceptionHandlerTable* handler_table, | |
624 ImplicitExceptionTable* nul_chk_table, | |
625 AbstractCompiler* compiler, | |
9707 | 626 int comp_level, |
627 GrowableArray<jlong>* leaf_graph_ids | |
628 #ifdef GRAAL | |
629 , Handle installed_code, | |
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630 Handle speculationLog |
9707 | 631 #endif |
0 | 632 ) |
633 { | |
634 assert(debug_info->oop_recorder() == code_buffer->oop_recorder(), "shared OR"); | |
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635 code_buffer->finalize_oop_references(method); |
9707 | 636 int leaf_graph_ids_size = leaf_graph_ids == NULL ? 0 : round_to(sizeof(jlong) * leaf_graph_ids->length(), oopSize); |
0 | 637 // create nmethod |
638 nmethod* nm = NULL; | |
639 { MutexLockerEx mu(CodeCache_lock, Mutex::_no_safepoint_check_flag); | |
640 int nmethod_size = | |
641 allocation_size(code_buffer, sizeof(nmethod)) | |
642 + adjust_pcs_size(debug_info->pcs_size()) | |
643 + round_to(dependencies->size_in_bytes() , oopSize) | |
644 + round_to(handler_table->size_in_bytes(), oopSize) | |
645 + round_to(nul_chk_table->size_in_bytes(), oopSize) | |
9707 | 646 + round_to(debug_info->data_size() , oopSize) |
8883 | 647 + leaf_graph_ids_size; |
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648 nm = new (nmethod_size) |
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649 nmethod(method(), nmethod_size, compile_id, entry_bci, offsets, |
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650 orig_pc_offset, debug_info, dependencies, code_buffer, frame_size, |
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651 oop_maps, |
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652 handler_table, |
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653 nul_chk_table, |
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654 compiler, |
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655 comp_level, |
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656 leaf_graph_ids |
9707 | 657 #ifdef GRAAL |
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658 , installed_code, |
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659 speculationLog |
9707 | 660 #endif |
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661 ); |
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662 |
0 | 663 if (nm != NULL) { |
664 // To make dependency checking during class loading fast, record | |
665 // the nmethod dependencies in the classes it is dependent on. | |
666 // This allows the dependency checking code to simply walk the | |
667 // class hierarchy above the loaded class, checking only nmethods | |
668 // which are dependent on those classes. The slow way is to | |
669 // check every nmethod for dependencies which makes it linear in | |
670 // the number of methods compiled. For applications with a lot | |
671 // classes the slow way is too slow. | |
672 for (Dependencies::DepStream deps(nm); deps.next(); ) { | |
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673 Klass* klass = deps.context_type(); |
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674 if (klass == NULL) { |
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675 continue; // ignore things like evol_method |
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676 } |
0 | 677 |
678 // record this nmethod as dependent on this klass | |
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679 InstanceKlass::cast(klass)->add_dependent_nmethod(nm); |
0 | 680 } |
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681 NOT_PRODUCT(if (nm != NULL) note_java_nmethod(nm)); |
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682 if (PrintAssembly) { |
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683 Disassembler::decode(nm); |
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684 } |
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685 } |
0 | 686 } |
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687 // Do verification and logging outside CodeCache_lock. |
0 | 688 if (nm != NULL) { |
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689 // Safepoints in nmethod::verify aren't allowed because nm hasn't been installed yet. |
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690 DEBUG_ONLY(nm->verify();) |
0 | 691 nm->log_new_nmethod(); |
692 } | |
693 return nm; | |
694 } | |
695 | |
696 | |
697 // For native wrappers | |
698 nmethod::nmethod( | |
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699 Method* method, |
0 | 700 int nmethod_size, |
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701 int compile_id, |
0 | 702 CodeOffsets* offsets, |
703 CodeBuffer* code_buffer, | |
704 int frame_size, | |
705 ByteSize basic_lock_owner_sp_offset, | |
706 ByteSize basic_lock_sp_offset, | |
707 OopMapSet* oop_maps ) | |
708 : CodeBlob("native nmethod", code_buffer, sizeof(nmethod), | |
709 nmethod_size, offsets->value(CodeOffsets::Frame_Complete), frame_size, oop_maps), | |
2019 | 710 _native_receiver_sp_offset(basic_lock_owner_sp_offset), |
711 _native_basic_lock_sp_offset(basic_lock_sp_offset) | |
0 | 712 { |
713 { | |
714 debug_only(No_Safepoint_Verifier nsv;) | |
715 assert_locked_or_safepoint(CodeCache_lock); | |
716 | |
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717 init_defaults(); |
0 | 718 _method = method; |
719 _entry_bci = InvocationEntryBci; | |
720 // We have no exception handler or deopt handler make the | |
721 // values something that will never match a pc like the nmethod vtable entry | |
722 _exception_offset = 0; | |
723 _deoptimize_offset = 0; | |
1204 | 724 _deoptimize_mh_offset = 0; |
0 | 725 _orig_pc_offset = 0; |
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726 |
1748 | 727 _consts_offset = data_offset(); |
0 | 728 _stub_offset = data_offset(); |
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729 _oops_offset = data_offset(); |
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730 _metadata_offset = _oops_offset + round_to(code_buffer->total_oop_size(), oopSize); |
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731 _scopes_data_offset = _metadata_offset + round_to(code_buffer->total_metadata_size(), wordSize); |
0 | 732 _scopes_pcs_offset = _scopes_data_offset; |
733 _dependencies_offset = _scopes_pcs_offset; | |
734 _handler_table_offset = _dependencies_offset; | |
735 _nul_chk_table_offset = _handler_table_offset; | |
9707 | 736 _leaf_graph_ids_offset = _nul_chk_table_offset; |
737 _nmethod_end_offset = _leaf_graph_ids_offset; | |
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738 _compile_id = compile_id; |
0 | 739 _comp_level = CompLevel_none; |
1748 | 740 _entry_point = code_begin() + offsets->value(CodeOffsets::Entry); |
741 _verified_entry_point = code_begin() + offsets->value(CodeOffsets::Verified_Entry); | |
0 | 742 _osr_entry_point = NULL; |
743 _exception_cache = NULL; | |
744 _pc_desc_cache.reset_to(NULL); | |
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745 _hotness_counter = NMethodSweeper::hotness_counter_reset_val(); |
0 | 746 |
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747 code_buffer->copy_values_to(this); |
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748 if (ScavengeRootsInCode && detect_scavenge_root_oops()) { |
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749 CodeCache::add_scavenge_root_nmethod(this); |
12080 | 750 Universe::heap()->register_nmethod(this); |
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751 } |
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752 debug_only(verify_scavenge_root_oops()); |
0 | 753 CodeCache::commit(this); |
754 } | |
755 | |
756 if (PrintNativeNMethods || PrintDebugInfo || PrintRelocations || PrintDependencies) { | |
757 ttyLocker ttyl; // keep the following output all in one block | |
758 // This output goes directly to the tty, not the compiler log. | |
759 // To enable tools to match it up with the compilation activity, | |
760 // be sure to tag this tty output with the compile ID. | |
761 if (xtty != NULL) { | |
762 xtty->begin_head("print_native_nmethod"); | |
763 xtty->method(_method); | |
764 xtty->stamp(); | |
765 xtty->end_head(" address='" INTPTR_FORMAT "'", (intptr_t) this); | |
766 } | |
767 // print the header part first | |
768 print(); | |
769 // then print the requested information | |
770 if (PrintNativeNMethods) { | |
771 print_code(); | |
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772 if (oop_maps != NULL) { |
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773 oop_maps->print(); |
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774 } |
0 | 775 } |
776 if (PrintRelocations) { | |
777 print_relocations(); | |
778 } | |
779 if (xtty != NULL) { | |
780 xtty->tail("print_native_nmethod"); | |
781 } | |
782 } | |
783 } | |
784 | |
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785 // For dtrace wrappers |
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786 #ifdef HAVE_DTRACE_H |
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787 nmethod::nmethod( |
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788 Method* method, |
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789 int nmethod_size, |
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790 CodeOffsets* offsets, |
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791 CodeBuffer* code_buffer, |
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792 int frame_size) |
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793 : CodeBlob("dtrace nmethod", code_buffer, sizeof(nmethod), |
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794 nmethod_size, offsets->value(CodeOffsets::Frame_Complete), frame_size, NULL), |
2019 | 795 _native_receiver_sp_offset(in_ByteSize(-1)), |
796 _native_basic_lock_sp_offset(in_ByteSize(-1)) | |
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797 { |
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798 { |
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799 debug_only(No_Safepoint_Verifier nsv;) |
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800 assert_locked_or_safepoint(CodeCache_lock); |
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801 |
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802 init_defaults(); |
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803 _method = method; |
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804 _entry_bci = InvocationEntryBci; |
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805 // We have no exception handler or deopt handler make the |
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806 // values something that will never match a pc like the nmethod vtable entry |
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807 _exception_offset = 0; |
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808 _deoptimize_offset = 0; |
1204 | 809 _deoptimize_mh_offset = 0; |
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810 _unwind_handler_offset = -1; |
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811 _trap_offset = offsets->value(CodeOffsets::Dtrace_trap); |
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812 _orig_pc_offset = 0; |
1748 | 813 _consts_offset = data_offset(); |
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814 _stub_offset = data_offset(); |
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815 _oops_offset = data_offset(); |
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816 _metadata_offset = _oops_offset + round_to(code_buffer->total_oop_size(), oopSize); |
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817 _scopes_data_offset = _metadata_offset + round_to(code_buffer->total_metadata_size(), wordSize); |
116
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818 _scopes_pcs_offset = _scopes_data_offset; |
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819 _dependencies_offset = _scopes_pcs_offset; |
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820 _handler_table_offset = _dependencies_offset; |
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821 _nul_chk_table_offset = _handler_table_offset; |
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822 _nmethod_end_offset = _nul_chk_table_offset; |
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823 _compile_id = 0; // default |
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824 _comp_level = CompLevel_none; |
1748 | 825 _entry_point = code_begin() + offsets->value(CodeOffsets::Entry); |
826 _verified_entry_point = code_begin() + offsets->value(CodeOffsets::Verified_Entry); | |
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827 _osr_entry_point = NULL; |
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828 _exception_cache = NULL; |
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829 _pc_desc_cache.reset_to(NULL); |
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830 _hotness_counter = NMethodSweeper::hotness_counter_reset_val(); |
116
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831 |
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832 code_buffer->copy_values_to(this); |
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833 debug_only(verify_scavenge_root_oops()); |
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834 CodeCache::commit(this); |
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835 } |
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836 |
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837 if (PrintNMethods || PrintDebugInfo || PrintRelocations || PrintDependencies) { |
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838 ttyLocker ttyl; // keep the following output all in one block |
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839 // This output goes directly to the tty, not the compiler log. |
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840 // To enable tools to match it up with the compilation activity, |
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841 // be sure to tag this tty output with the compile ID. |
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842 if (xtty != NULL) { |
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843 xtty->begin_head("print_dtrace_nmethod"); |
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844 xtty->method(_method); |
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845 xtty->stamp(); |
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846 xtty->end_head(" address='" INTPTR_FORMAT "'", (intptr_t) this); |
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847 } |
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848 // print the header part first |
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849 print(); |
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850 // then print the requested information |
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851 if (PrintNMethods) { |
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852 print_code(); |
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853 } |
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854 if (PrintRelocations) { |
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855 print_relocations(); |
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856 } |
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857 if (xtty != NULL) { |
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858 xtty->tail("print_dtrace_nmethod"); |
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859 } |
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860 } |
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861 } |
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862 #endif // def HAVE_DTRACE_H |
0 | 863 |
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864 void* nmethod::operator new(size_t size, int nmethod_size) throw() { |
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865 // Not critical, may return null if there is too little continuous memory |
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866 return CodeCache::allocate(nmethod_size); |
0 | 867 } |
868 | |
869 nmethod::nmethod( | |
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870 Method* method, |
0 | 871 int nmethod_size, |
872 int compile_id, | |
873 int entry_bci, | |
874 CodeOffsets* offsets, | |
875 int orig_pc_offset, | |
876 DebugInformationRecorder* debug_info, | |
877 Dependencies* dependencies, | |
878 CodeBuffer *code_buffer, | |
879 int frame_size, | |
880 OopMapSet* oop_maps, | |
881 ExceptionHandlerTable* handler_table, | |
882 ImplicitExceptionTable* nul_chk_table, | |
883 AbstractCompiler* compiler, | |
9707 | 884 int comp_level, |
885 GrowableArray<jlong>* leaf_graph_ids | |
886 #ifdef GRAAL | |
887 , Handle installed_code, | |
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888 Handle speculation_log |
9707 | 889 #endif |
0 | 890 ) |
891 : CodeBlob("nmethod", code_buffer, sizeof(nmethod), | |
892 nmethod_size, offsets->value(CodeOffsets::Frame_Complete), frame_size, oop_maps), | |
2019 | 893 _native_receiver_sp_offset(in_ByteSize(-1)), |
894 _native_basic_lock_sp_offset(in_ByteSize(-1)) | |
0 | 895 { |
896 assert(debug_info->oop_recorder() == code_buffer->oop_recorder(), "shared OR"); | |
897 { | |
898 debug_only(No_Safepoint_Verifier nsv;) | |
899 assert_locked_or_safepoint(CodeCache_lock); | |
900 | |
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901 init_defaults(); |
0 | 902 _method = method; |
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903 _entry_bci = entry_bci; |
0 | 904 _compile_id = compile_id; |
905 _comp_level = comp_level; | |
906 _compiler = compiler; | |
907 _orig_pc_offset = orig_pc_offset; | |
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908 _hotness_counter = NMethodSweeper::hotness_counter_reset_val(); |
1748 | 909 |
910 // Section offsets | |
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911 _consts_offset = content_offset() + code_buffer->total_offset_of(code_buffer->consts()); |
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912 _stub_offset = content_offset() + code_buffer->total_offset_of(code_buffer->stubs()); |
0 | 913 |
9707 | 914 #ifdef GRAAL |
915 _graal_installed_code = installed_code(); | |
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916 _speculation_log = (instanceOop)speculation_log(); |
9707 | 917 #endif |
918 if (compiler->is_graal()) { | |
919 // Graal might not produce any stub sections | |
920 if (offsets->value(CodeOffsets::Exceptions) != -1) { | |
921 _exception_offset = code_offset() + offsets->value(CodeOffsets::Exceptions); | |
922 } else { | |
923 _exception_offset = -1; | |
924 } | |
925 if (offsets->value(CodeOffsets::Deopt) != -1) { | |
926 _deoptimize_offset = code_offset() + offsets->value(CodeOffsets::Deopt); | |
927 } else { | |
928 _deoptimize_offset = -1; | |
929 } | |
930 if (offsets->value(CodeOffsets::DeoptMH) != -1) { | |
931 _deoptimize_mh_offset = code_offset() + offsets->value(CodeOffsets::DeoptMH); | |
932 } else { | |
933 _deoptimize_mh_offset = -1; | |
934 } | |
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935 } else { |
9707 | 936 // Exception handler and deopt handler are in the stub section |
937 assert(offsets->value(CodeOffsets::Exceptions) != -1, "must be set"); | |
938 assert(offsets->value(CodeOffsets::Deopt ) != -1, "must be set"); | |
939 | |
940 _exception_offset = _stub_offset + offsets->value(CodeOffsets::Exceptions); | |
941 _deoptimize_offset = _stub_offset + offsets->value(CodeOffsets::Deopt); | |
942 if (offsets->value(CodeOffsets::DeoptMH) != -1) { | |
943 _deoptimize_mh_offset = _stub_offset + offsets->value(CodeOffsets::DeoptMH); | |
944 } else { | |
945 _deoptimize_mh_offset = -1; | |
946 } | |
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947 } |
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948 if (offsets->value(CodeOffsets::UnwindHandler) != -1) { |
1748 | 949 _unwind_handler_offset = code_offset() + offsets->value(CodeOffsets::UnwindHandler); |
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950 } else { |
1748 | 951 _unwind_handler_offset = -1; |
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952 } |
1748 | 953 |
9707 | 954 int leaf_graph_ids_size = leaf_graph_ids == NULL ? 0 : round_to(sizeof(jlong) * leaf_graph_ids->length(), oopSize); |
955 | |
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956 _oops_offset = data_offset(); |
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957 _metadata_offset = _oops_offset + round_to(code_buffer->total_oop_size(), oopSize); |
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958 _scopes_data_offset = _metadata_offset + round_to(code_buffer->total_metadata_size(), wordSize); |
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959 |
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960 _scopes_pcs_offset = _scopes_data_offset + round_to(debug_info->data_size (), oopSize); |
0 | 961 _dependencies_offset = _scopes_pcs_offset + adjust_pcs_size(debug_info->pcs_size()); |
962 _handler_table_offset = _dependencies_offset + round_to(dependencies->size_in_bytes (), oopSize); | |
963 _nul_chk_table_offset = _handler_table_offset + round_to(handler_table->size_in_bytes(), oopSize); | |
9707 | 964 _leaf_graph_ids_offset = _nul_chk_table_offset + round_to(nul_chk_table->size_in_bytes(), oopSize); |
965 _nmethod_end_offset = _leaf_graph_ids_offset + leaf_graph_ids_size; | |
0 | 966 |
1748 | 967 _entry_point = code_begin() + offsets->value(CodeOffsets::Entry); |
968 _verified_entry_point = code_begin() + offsets->value(CodeOffsets::Verified_Entry); | |
969 _osr_entry_point = code_begin() + offsets->value(CodeOffsets::OSR_Entry); | |
0 | 970 _exception_cache = NULL; |
971 _pc_desc_cache.reset_to(scopes_pcs_begin()); | |
972 | |
973 // Copy contents of ScopeDescRecorder to nmethod | |
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974 code_buffer->copy_values_to(this); |
0 | 975 debug_info->copy_to(this); |
976 dependencies->copy_to(this); | |
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977 if (ScavengeRootsInCode && detect_scavenge_root_oops()) { |
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978 CodeCache::add_scavenge_root_nmethod(this); |
12080 | 979 Universe::heap()->register_nmethod(this); |
989
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980 } |
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981 debug_only(verify_scavenge_root_oops()); |
0 | 982 |
983 CodeCache::commit(this); | |
984 | |
985 // Copy contents of ExceptionHandlerTable to nmethod | |
986 handler_table->copy_to(this); | |
987 nul_chk_table->copy_to(this); | |
988 | |
9707 | 989 if (leaf_graph_ids != NULL && leaf_graph_ids_size > 0) { |
990 memcpy(leaf_graph_ids_begin(), leaf_graph_ids->adr_at(0), leaf_graph_ids_size); | |
991 } | |
992 | |
0 | 993 // we use the information of entry points to find out if a method is |
994 // static or non static | |
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995 assert(compiler->is_c2() || compiler->is_graal() || |
0 | 996 _method->is_static() == (entry_point() == _verified_entry_point), |
997 " entry points must be same for static methods and vice versa"); | |
998 } | |
999 | |
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1000 bool printnmethods = PrintNMethods |
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1001 || CompilerOracle::should_print(_method) |
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1002 || CompilerOracle::has_option_string(_method, "PrintNMethods"); |
0 | 1003 if (printnmethods || PrintDebugInfo || PrintRelocations || PrintDependencies || PrintExceptionHandlers) { |
1004 print_nmethod(printnmethods); | |
1005 } | |
1006 } | |
1007 | |
1008 | |
1009 // Print a short set of xml attributes to identify this nmethod. The | |
1010 // output should be embedded in some other element. | |
1011 void nmethod::log_identity(xmlStream* log) const { | |
1012 log->print(" compile_id='%d'", compile_id()); | |
1013 const char* nm_kind = compile_kind(); | |
1014 if (nm_kind != NULL) log->print(" compile_kind='%s'", nm_kind); | |
1015 if (compiler() != NULL) { | |
1016 log->print(" compiler='%s'", compiler()->name()); | |
1017 } | |
1783 | 1018 if (TieredCompilation) { |
1019 log->print(" level='%d'", comp_level()); | |
1020 } | |
0 | 1021 } |
1022 | |
1023 | |
1024 #define LOG_OFFSET(log, name) \ | |
1025 if ((intptr_t)name##_end() - (intptr_t)name##_begin()) \ | |
1026 log->print(" " XSTR(name) "_offset='%d'" , \ | |
1027 (intptr_t)name##_begin() - (intptr_t)this) | |
1028 | |
1029 | |
1030 void nmethod::log_new_nmethod() const { | |
1031 if (LogCompilation && xtty != NULL) { | |
1032 ttyLocker ttyl; | |
1033 HandleMark hm; | |
1034 xtty->begin_elem("nmethod"); | |
1035 log_identity(xtty); | |
1748 | 1036 xtty->print(" entry='" INTPTR_FORMAT "' size='%d'", code_begin(), size()); |
0 | 1037 xtty->print(" address='" INTPTR_FORMAT "'", (intptr_t) this); |
1038 | |
1039 LOG_OFFSET(xtty, relocation); | |
1762
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1040 LOG_OFFSET(xtty, consts); |
1748 | 1041 LOG_OFFSET(xtty, insts); |
0 | 1042 LOG_OFFSET(xtty, stub); |
1043 LOG_OFFSET(xtty, scopes_data); | |
1044 LOG_OFFSET(xtty, scopes_pcs); | |
1045 LOG_OFFSET(xtty, dependencies); | |
1046 LOG_OFFSET(xtty, handler_table); | |
1047 LOG_OFFSET(xtty, nul_chk_table); | |
1048 LOG_OFFSET(xtty, oops); | |
1049 | |
1050 xtty->method(method()); | |
1051 xtty->stamp(); | |
1052 xtty->end_elem(); | |
1053 } | |
1054 } | |
1055 | |
1056 #undef LOG_OFFSET | |
1057 | |
1058 | |
1059 // Print out more verbose output usually for a newly created nmethod. | |
2405
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1060 void nmethod::print_on(outputStream* st, const char* msg) const { |
0 | 1061 if (st != NULL) { |
1062 ttyLocker ttyl; | |
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1063 if (WizardMode) { |
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1064 CompileTask::print_compilation(st, this, msg, /*short_form:*/ true); |
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1065 st->print_cr(" (" INTPTR_FORMAT ")", this); |
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1066 } else { |
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1067 CompileTask::print_compilation(st, this, msg, /*short_form:*/ false); |
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1068 } |
0 | 1069 } |
1070 } | |
1071 | |
1072 | |
1073 void nmethod::print_nmethod(bool printmethod) { | |
1074 ttyLocker ttyl; // keep the following output all in one block | |
1075 if (xtty != NULL) { | |
1076 xtty->begin_head("print_nmethod"); | |
1077 xtty->stamp(); | |
1078 xtty->end_head(); | |
1079 } | |
1080 // print the header part first | |
1081 print(); | |
1082 // then print the requested information | |
1083 if (printmethod) { | |
1084 print_code(); | |
1085 print_pcs(); | |
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1086 if (oop_maps()) { |
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1087 oop_maps()->print(); |
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1088 } |
0 | 1089 } |
1090 if (PrintDebugInfo) { | |
1091 print_scopes(); | |
1092 } | |
1093 if (PrintRelocations) { | |
1094 print_relocations(); | |
1095 } | |
1096 if (PrintDependencies) { | |
1097 print_dependencies(); | |
1098 } | |
1099 if (PrintExceptionHandlers) { | |
1100 print_handler_table(); | |
1101 print_nul_chk_table(); | |
1102 } | |
1103 if (xtty != NULL) { | |
1104 xtty->tail("print_nmethod"); | |
1105 } | |
1106 } | |
1107 | |
1108 | |
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1109 // Promote one word from an assembly-time handle to a live embedded oop. |
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1110 inline void nmethod::initialize_immediate_oop(oop* dest, jobject handle) { |
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1111 if (handle == NULL || |
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1112 // As a special case, IC oops are initialized to 1 or -1. |
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1113 handle == (jobject) Universe::non_oop_word()) { |
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1114 (*dest) = (oop) handle; |
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1115 } else { |
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1116 (*dest) = JNIHandles::resolve_non_null(handle); |
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1117 } |
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1118 } |
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1119 |
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1120 |
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1121 // Have to have the same name because it's called by a template |
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1122 void nmethod::copy_values(GrowableArray<jobject>* array) { |
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1123 int length = array->length(); |
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1124 assert((address)(oops_begin() + length) <= (address)oops_end(), "oops big enough"); |
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1125 oop* dest = oops_begin(); |
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1126 for (int index = 0 ; index < length; index++) { |
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1127 initialize_immediate_oop(&dest[index], array->at(index)); |
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1128 } |
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1129 |
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1130 // Now we can fix up all the oops in the code. We need to do this |
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1131 // in the code because the assembler uses jobjects as placeholders. |
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1132 // The code and relocations have already been initialized by the |
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1133 // CodeBlob constructor, so it is valid even at this early point to |
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1134 // iterate over relocations and patch the code. |
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1135 fix_oop_relocations(NULL, NULL, /*initialize_immediates=*/ true); |
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1136 } |
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1137 |
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1138 void nmethod::copy_values(GrowableArray<Metadata*>* array) { |
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1139 int length = array->length(); |
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1140 assert((address)(metadata_begin() + length) <= (address)metadata_end(), "big enough"); |
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1141 Metadata** dest = metadata_begin(); |
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1142 for (int index = 0 ; index < length; index++) { |
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1143 dest[index] = array->at(index); |
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1144 } |
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1145 } |
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1146 |
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1147 bool nmethod::is_at_poll_return(address pc) { |
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1148 RelocIterator iter(this, pc, pc+1); |
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1149 while (iter.next()) { |
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1150 if (iter.type() == relocInfo::poll_return_type) |
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1151 return true; |
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1152 } |
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1153 return false; |
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1154 } |
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1155 |
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1156 |
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1157 bool nmethod::is_at_poll_or_poll_return(address pc) { |
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1158 RelocIterator iter(this, pc, pc+1); |
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1159 while (iter.next()) { |
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1160 relocInfo::relocType t = iter.type(); |
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1161 if (t == relocInfo::poll_return_type || t == relocInfo::poll_type) |
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1162 return true; |
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1163 } |
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1164 return false; |
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1165 } |
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1166 |
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1167 |
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1168 void nmethod::fix_oop_relocations(address begin, address end, bool initialize_immediates) { |
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1169 // re-patch all oop-bearing instructions, just in case some oops moved |
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1170 RelocIterator iter(this, begin, end); |
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1171 while (iter.next()) { |
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1172 if (iter.type() == relocInfo::oop_type) { |
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1173 oop_Relocation* reloc = iter.oop_reloc(); |
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1174 if (initialize_immediates && reloc->oop_is_immediate()) { |
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1175 oop* dest = reloc->oop_addr(); |
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1176 initialize_immediate_oop(dest, (jobject) *dest); |
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1177 } |
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1178 // Refresh the oop-related bits of this instruction. |
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1179 reloc->fix_oop_relocation(); |
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1180 } else if (iter.type() == relocInfo::metadata_type) { |
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1181 metadata_Relocation* reloc = iter.metadata_reloc(); |
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1182 reloc->fix_metadata_relocation(); |
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1183 } |
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1184 } |
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1185 } |
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1186 |
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1187 |
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1188 void nmethod::verify_oop_relocations() { |
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1189 // Ensure sure that the code matches the current oop values |
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1190 RelocIterator iter(this, NULL, NULL); |
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1191 while (iter.next()) { |
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1192 if (iter.type() == relocInfo::oop_type) { |
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1193 oop_Relocation* reloc = iter.oop_reloc(); |
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1194 if (!reloc->oop_is_immediate()) { |
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1195 reloc->verify_oop_relocation(); |
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1196 } |
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1197 } |
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1198 } |
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1199 } |
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1200 |
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7028374: race in fix_oop_relocations for scavengeable nmethods
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changeset
|
1201 |
0 | 1202 ScopeDesc* nmethod::scope_desc_at(address pc) { |
1203 PcDesc* pd = pc_desc_at(pc); | |
1204 guarantee(pd != NULL, "scope must be present"); | |
1205 return new ScopeDesc(this, pd->scope_decode_offset(), | |
9707 | 1206 pd->obj_decode_offset(), pd->should_reexecute(), pd->rethrow_exception(), |
1253
f70b0d9ab095
6910618: C2: Error: assert(d->is_oop(),"JVM_ArrayCopy: dst not an oop")
kvn
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changeset
|
1207 pd->return_oop()); |
0 | 1208 } |
1209 | |
1210 | |
1211 void nmethod::clear_inline_caches() { | |
1212 assert(SafepointSynchronize::is_at_safepoint(), "cleaning of IC's only allowed at safepoint"); | |
1213 if (is_zombie()) { | |
1214 return; | |
1215 } | |
1216 | |
1217 RelocIterator iter(this); | |
1218 while (iter.next()) { | |
1219 iter.reloc()->clear_inline_cache(); | |
1220 } | |
1221 } | |
1222 | |
1223 | |
1224 void nmethod::cleanup_inline_caches() { | |
1225 | |
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1226 assert_locked_or_safepoint(CompiledIC_lock); |
0 | 1227 |
1228 // If the method is not entrant or zombie then a JMP is plastered over the | |
1229 // first few bytes. If an oop in the old code was there, that oop | |
1230 // should not get GC'd. Skip the first few bytes of oops on | |
1231 // not-entrant methods. | |
1232 address low_boundary = verified_entry_point(); | |
1233 if (!is_in_use()) { | |
1234 low_boundary += NativeJump::instruction_size; | |
1235 // %%% Note: On SPARC we patch only a 4-byte trap, not a full NativeJump. | |
1236 // This means that the low_boundary is going to be a little too high. | |
1237 // This shouldn't matter, since oops of non-entrant methods are never used. | |
1238 // In fact, why are we bothering to look at oops in a non-entrant method?? | |
1239 } | |
1240 | |
1241 // Find all calls in an nmethod, and clear the ones that points to zombie methods | |
1242 ResourceMark rm; | |
1243 RelocIterator iter(this, low_boundary); | |
1244 while(iter.next()) { | |
1245 switch(iter.type()) { | |
1246 case relocInfo::virtual_call_type: | |
1247 case relocInfo::opt_virtual_call_type: { | |
1248 CompiledIC *ic = CompiledIC_at(iter.reloc()); | |
1249 // Ok, to lookup references to zombies here | |
1250 CodeBlob *cb = CodeCache::find_blob_unsafe(ic->ic_destination()); | |
1251 if( cb != NULL && cb->is_nmethod() ) { | |
1252 nmethod* nm = (nmethod*)cb; | |
1253 // Clean inline caches pointing to both zombie and not_entrant methods | |
1202 | 1254 if (!nm->is_in_use() || (nm->method()->code() != nm)) ic->set_to_clean(); |
0 | 1255 } |
1256 break; | |
1257 } | |
1258 case relocInfo::static_call_type: { | |
1259 CompiledStaticCall *csc = compiledStaticCall_at(iter.reloc()); | |
1260 CodeBlob *cb = CodeCache::find_blob_unsafe(csc->destination()); | |
1261 if( cb != NULL && cb->is_nmethod() ) { | |
1262 nmethod* nm = (nmethod*)cb; | |
1263 // Clean inline caches pointing to both zombie and not_entrant methods | |
1202 | 1264 if (!nm->is_in_use() || (nm->method()->code() != nm)) csc->set_to_clean(); |
0 | 1265 } |
1266 break; | |
1267 } | |
1268 } | |
1269 } | |
1270 } | |
1271 | |
989
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1272 // This is a private interface with the sweeper. |
0 | 1273 void nmethod::mark_as_seen_on_stack() { |
12324
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1274 assert(is_alive(), "Must be an alive method"); |
1644
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1275 // Set the traversal mark to ensure that the sweeper does 2 |
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1276 // cleaning passes before moving to zombie. |
0 | 1277 set_stack_traversal_mark(NMethodSweeper::traversal_count()); |
1278 } | |
1279 | |
2342
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1280 // Tell if a non-entrant method can be converted to a zombie (i.e., |
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1281 // there are no activations on the stack, not in use by the VM, |
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1282 // and not in use by the ServiceThread) |
0 | 1283 bool nmethod::can_not_entrant_be_converted() { |
1284 assert(is_not_entrant(), "must be a non-entrant method"); | |
1285 | |
1286 // Since the nmethod sweeper only does partial sweep the sweeper's traversal | |
1287 // count can be greater than the stack traversal count before it hits the | |
1288 // nmethod for the second time. | |
2342
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1289 return stack_traversal_mark()+1 < NMethodSweeper::traversal_count() && |
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1290 !is_locked_by_vm(); |
0 | 1291 } |
1292 | |
1293 void nmethod::inc_decompile_count() { | |
9707 | 1294 if (!is_compiled_by_c2() && !is_compiled_by_graal()) return; |
0 | 1295 // Could be gated by ProfileTraps, but do not bother... |
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1296 Method* m = method(); |
0 | 1297 if (m == NULL) return; |
6725
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1298 MethodData* mdo = m->method_data(); |
0 | 1299 if (mdo == NULL) return; |
6725
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1300 // There is a benign race here. See comments in methodData.hpp. |
0 | 1301 mdo->inc_decompile_count(); |
1302 } | |
1303 | |
1304 void nmethod::make_unloaded(BoolObjectClosure* is_alive, oop cause) { | |
1305 | |
1306 post_compiled_method_unload(); | |
1307 | |
1308 // Since this nmethod is being unloaded, make sure that dependencies | |
1309 // recorded in instanceKlasses get flushed and pass non-NULL closure to | |
1310 // indicate that this work is being done during a GC. | |
1311 assert(Universe::heap()->is_gc_active(), "should only be called during gc"); | |
1312 assert(is_alive != NULL, "Should be non-NULL"); | |
1313 // A non-NULL is_alive closure indicates that this is being called during GC. | |
1314 flush_dependencies(is_alive); | |
1315 | |
1316 // Break cycle between nmethod & method | |
1317 if (TraceClassUnloading && WizardMode) { | |
1318 tty->print_cr("[Class unloading: Making nmethod " INTPTR_FORMAT | |
6725
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1319 " unloadable], Method*(" INTPTR_FORMAT |
0 | 1320 "), cause(" INTPTR_FORMAT ")", |
1321 this, (address)_method, (address)cause); | |
989
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1322 if (!Universe::heap()->is_gc_active()) |
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1323 cause->klass()->print(); |
0 | 1324 } |
941 | 1325 // Unlink the osr method, so we do not look this up again |
1326 if (is_osr_method()) { | |
1327 invalidate_osr_method(); | |
1328 } | |
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1329 // If _method is already NULL the Method* is about to be unloaded, |
0 | 1330 // so we don't have to break the cycle. Note that it is possible to |
6725
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1331 // have the Method* live here, in case we unload the nmethod because |
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1332 // it is pointing to some oop (other than the Method*) being unloaded. |
0 | 1333 if (_method != NULL) { |
6725
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1334 // OSR methods point to the Method*, but the Method* does not |
0 | 1335 // point back! |
1336 if (_method->code() == this) { | |
1337 _method->clear_code(); // Break a cycle | |
1338 } | |
1339 _method = NULL; // Clear the method of this dead nmethod | |
1340 } | |
9707 | 1341 |
1342 #ifdef GRAAL | |
1343 // The method can only be unloaded after the pointer to the installed code | |
1344 // Java wrapper is no longer alive. Here we need to clear out this weak | |
1345 // reference to the dead object. | |
1346 if (_graal_installed_code != NULL) { | |
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0b1b5356b566
Fixed issues around execute compiled code stub. Made TraceDeoptimization a product flag.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
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10475
diff
changeset
|
1347 HotSpotInstalledCode::set_codeBlob(_graal_installed_code, 0); |
9707 | 1348 _graal_installed_code = NULL; |
1349 } | |
1350 #endif | |
1351 | |
0 | 1352 // Make the class unloaded - i.e., change state and notify sweeper |
1538
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|
1353 assert(SafepointSynchronize::is_at_safepoint(), "must be at safepoint"); |
0 | 1354 if (is_in_use()) { |
1355 // Transitioning directly from live to unloaded -- so | |
1356 // we need to force a cache clean-up; remember this | |
1357 // for later on. | |
1358 CodeCache::set_needs_cache_clean(true); | |
1359 } | |
1644
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1360 _state = unloaded; |
0 | 1361 |
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1362 // Log the unloading. |
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|
1363 log_state_change(); |
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1364 |
6725
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1365 // The Method* is gone at this point |
0 | 1366 assert(_method == NULL, "Tautology"); |
1367 | |
989
148e5441d916
6863023: need non-perm oops in code cache for JSR 292
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|
1368 set_osr_link(NULL); |
148e5441d916
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|
1369 //set_scavenge_root_link(NULL); // done by prune_scavenge_root_nmethods |
13074
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|
1370 NMethodSweeper::report_state_change(this); |
0 | 1371 } |
1372 | |
1373 void nmethod::invalidate_osr_method() { | |
1374 assert(_entry_bci != InvocationEntryBci, "wrong kind of nmethod"); | |
1375 // Remove from list of active nmethods | |
1376 if (method() != NULL) | |
6940
18fb7da42534
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coleenp
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6806
diff
changeset
|
1377 method()->method_holder()->remove_osr_nmethod(this); |
0 | 1378 // Set entry as invalid |
1379 _entry_bci = InvalidOSREntryBci; | |
1380 } | |
1381 | |
1109
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|
1382 void nmethod::log_state_change() const { |
0 | 1383 if (LogCompilation) { |
1384 if (xtty != NULL) { | |
1385 ttyLocker ttyl; // keep the following output all in one block | |
1644
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6965184: possible races in make_not_entrant_or_zombie
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|
1386 if (_state == unloaded) { |
1109
032260830071
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|
1387 xtty->begin_elem("make_unloaded thread='" UINTX_FORMAT "'", |
032260830071
5057818: codecache full and compiler disabled in bigapps fastdebug run
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|
1388 os::current_thread_id()); |
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|
1389 } else { |
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|
1390 xtty->begin_elem("make_not_entrant thread='" UINTX_FORMAT "'%s", |
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|
1391 os::current_thread_id(), |
1644
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1392 (_state == zombie ? " zombie='1'" : "")); |
1109
032260830071
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|
1393 } |
0 | 1394 log_identity(xtty); |
1395 xtty->stamp(); | |
1396 xtty->end_elem(); | |
1397 } | |
1398 } | |
1644
2a47bd84841f
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|
1399 if (PrintCompilation && _state != unloaded) { |
2405
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2376
diff
changeset
|
1400 print_on(tty, _state == zombie ? "made zombie" : "made not entrant"); |
0 | 1401 } |
1402 } | |
1403 | |
13074
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1404 /** |
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1405 * Common functionality for both make_not_entrant and make_zombie |
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1406 */ |
1141 | 1407 bool nmethod::make_not_entrant_or_zombie(unsigned int state) { |
0 | 1408 assert(state == zombie || state == not_entrant, "must be zombie or not_entrant"); |
2342
46a56fac55c7
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|
1409 assert(!is_zombie(), "should not already be a zombie"); |
0 | 1410 |
1644
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1411 // Make sure neither the nmethod nor the method is flushed in case of a safepoint in code below. |
0 | 1412 nmethodLocker nml(this); |
1644
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1413 methodHandle the_method(method()); |
1726 | 1414 No_Safepoint_Verifier nsv; |
0 | 1415 |
12080 | 1416 // during patching, depending on the nmethod state we must notify the GC that |
1417 // code has been unloaded, unregistering it. We cannot do this right while | |
1418 // holding the Patching_lock because we need to use the CodeCache_lock. This | |
1419 // would be prone to deadlocks. | |
1420 // This flag is used to remember whether we need to later lock and unregister. | |
1421 bool nmethod_needs_unregister = false; | |
1422 | |
0 | 1423 { |
1109
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1424 // invalidate osr nmethod before acquiring the patching lock since |
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1425 // they both acquire leaf locks and we don't want a deadlock. |
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1426 // This logic is equivalent to the logic below for patching the |
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1427 // verified entry point of regular methods. |
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1428 if (is_osr_method()) { |
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1429 // this effectively makes the osr nmethod not entrant |
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1430 invalidate_osr_method(); |
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1431 } |
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1432 |
0 | 1433 // Enter critical section. Does not block for safepoint. |
1434 MutexLockerEx pl(Patching_lock, Mutex::_no_safepoint_check_flag); | |
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1435 |
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1436 if (_state == state) { |
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1437 // another thread already performed this transition so nothing |
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|
1438 // to do, but return false to indicate this. |
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|
1439 return false; |
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|
1440 } |
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|
1441 |
0 | 1442 // The caller can be calling the method statically or through an inline |
1443 // cache call. | |
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|
1444 if (!is_osr_method() && !is_not_entrant()) { |
9707 | 1445 address stub = SharedRuntime::get_handle_wrong_method_stub(); |
1446 NativeJump::patch_verified_entry(entry_point(), verified_entry_point(), stub); | |
0 | 1447 } |
1448 | |
1644
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1449 if (is_in_use()) { |
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1450 // It's a true state change, so mark the method as decompiled. |
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1451 // Do it only for transition from alive. |
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|
1452 inc_decompile_count(); |
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1453 } |
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|
1454 |
12080 | 1455 // If the state is becoming a zombie, signal to unregister the nmethod with |
1456 // the heap. | |
1457 // This nmethod may have already been unloaded during a full GC. | |
1458 if ((state == zombie) && !is_unloaded()) { | |
1459 nmethod_needs_unregister = true; | |
1460 } | |
1461 | |
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1462 // Must happen before state change. Otherwise we have a race condition in |
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1463 // nmethod::can_not_entrant_be_converted(). I.e., a method can immediately |
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1464 // transition its state from 'not_entrant' to 'zombie' without having to wait |
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12175
diff
changeset
|
1465 // for stack scanning. |
510fbd28919c
8020151: PSR:PERF Large performance regressions when code cache is filled
anoll
parents:
12175
diff
changeset
|
1466 if (state == not_entrant) { |
510fbd28919c
8020151: PSR:PERF Large performance regressions when code cache is filled
anoll
parents:
12175
diff
changeset
|
1467 mark_as_seen_on_stack(); |
510fbd28919c
8020151: PSR:PERF Large performance regressions when code cache is filled
anoll
parents:
12175
diff
changeset
|
1468 OrderAccess::storestore(); |
510fbd28919c
8020151: PSR:PERF Large performance regressions when code cache is filled
anoll
parents:
12175
diff
changeset
|
1469 } |
510fbd28919c
8020151: PSR:PERF Large performance regressions when code cache is filled
anoll
parents:
12175
diff
changeset
|
1470 |
0 | 1471 // Change state |
1644
2a47bd84841f
6965184: possible races in make_not_entrant_or_zombie
never
parents:
1616
diff
changeset
|
1472 _state = state; |
1109
032260830071
5057818: codecache full and compiler disabled in bigapps fastdebug run
never
parents:
994
diff
changeset
|
1473 |
032260830071
5057818: codecache full and compiler disabled in bigapps fastdebug run
never
parents:
994
diff
changeset
|
1474 // Log the transition once |
032260830071
5057818: codecache full and compiler disabled in bigapps fastdebug run
never
parents:
994
diff
changeset
|
1475 log_state_change(); |
032260830071
5057818: codecache full and compiler disabled in bigapps fastdebug run
never
parents:
994
diff
changeset
|
1476 |
1644
2a47bd84841f
6965184: possible races in make_not_entrant_or_zombie
never
parents:
1616
diff
changeset
|
1477 // Remove nmethod from method. |
2a47bd84841f
6965184: possible races in make_not_entrant_or_zombie
never
parents:
1616
diff
changeset
|
1478 // 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
|
1479 // refer to this nmethod because there is a race in setting these two fields |
6725
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6266
diff
changeset
|
1480 // in Method* as seen in bugid 4947125. |
1644
2a47bd84841f
6965184: possible races in make_not_entrant_or_zombie
never
parents:
1616
diff
changeset
|
1481 // 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
|
1482 // 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
|
1483 // through it. |
2a47bd84841f
6965184: possible races in make_not_entrant_or_zombie
never
parents:
1616
diff
changeset
|
1484 if (method() != NULL && (method()->code() == this || |
2a47bd84841f
6965184: possible races in make_not_entrant_or_zombie
never
parents:
1616
diff
changeset
|
1485 method()->from_compiled_entry() == verified_entry_point())) { |
2a47bd84841f
6965184: possible races in make_not_entrant_or_zombie
never
parents:
1616
diff
changeset
|
1486 HandleMark hm; |
2a47bd84841f
6965184: possible races in make_not_entrant_or_zombie
never
parents:
1616
diff
changeset
|
1487 method()->clear_code(); |
2a47bd84841f
6965184: possible races in make_not_entrant_or_zombie
never
parents:
1616
diff
changeset
|
1488 } |
0 | 1489 } // leave critical region under Patching_lock |
1490 | |
1538
bfe29ec02863
6950075: nmethod sweeper should operate concurrently
never
parents:
1490
diff
changeset
|
1491 // When the nmethod becomes zombie it is no longer alive so the |
bfe29ec02863
6950075: nmethod sweeper should operate concurrently
never
parents:
1490
diff
changeset
|
1492 // dependencies must be flushed. nmethods in the not_entrant |
bfe29ec02863
6950075: nmethod sweeper should operate concurrently
never
parents:
1490
diff
changeset
|
1493 // state will be flushed later when the transition to zombie |
bfe29ec02863
6950075: nmethod sweeper should operate concurrently
never
parents:
1490
diff
changeset
|
1494 // happens or they get unloaded. |
bfe29ec02863
6950075: nmethod sweeper should operate concurrently
never
parents:
1490
diff
changeset
|
1495 if (state == zombie) { |
1726 | 1496 { |
1497 // Flushing dependecies must be done before any possible | |
1498 // safepoint can sneak in, otherwise the oops used by the | |
1499 // dependency logic could have become stale. | |
1500 MutexLockerEx mu(CodeCache_lock, Mutex::_no_safepoint_check_flag); | |
12080 | 1501 if (nmethod_needs_unregister) { |
1502 Universe::heap()->unregister_nmethod(this); | |
1503 } | |
1726 | 1504 flush_dependencies(NULL); |
1505 } | |
1644
2a47bd84841f
6965184: possible races in make_not_entrant_or_zombie
never
parents:
1616
diff
changeset
|
1506 |
2342
46a56fac55c7
7024970: 2/3 assert(ServiceThread::is_service_thread(Thread::current())) failed: Service thread must post enqueue
dcubed
parents:
2321
diff
changeset
|
1507 // 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
|
1508 // 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
|
1509 // 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
|
1510 // 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
|
1511 // 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
|
1512 post_compiled_method_unload(); |
1726 | 1513 |
1514 #ifdef ASSERT | |
1515 // It's no longer safe to access the oops section since zombie | |
1516 // nmethods aren't scanned for GC. | |
1517 _oops_are_stale = true; | |
1518 #endif | |
12161
e1fbb86b47e4
8016277: Crash in nmethod::is_compiled_by_c1() on x86
roland
parents:
12080
diff
changeset
|
1519 // the Method may be reclaimed by class unloading now that the |
e1fbb86b47e4
8016277: Crash in nmethod::is_compiled_by_c1() on x86
roland
parents:
12080
diff
changeset
|
1520 // nmethod is in zombie state |
e1fbb86b47e4
8016277: Crash in nmethod::is_compiled_by_c1() on x86
roland
parents:
12080
diff
changeset
|
1521 set_method(NULL); |
1538
bfe29ec02863
6950075: nmethod sweeper should operate concurrently
never
parents:
1490
diff
changeset
|
1522 } else { |
bfe29ec02863
6950075: nmethod sweeper should operate concurrently
never
parents:
1490
diff
changeset
|
1523 assert(state == not_entrant, "other cases may need to be handled differently"); |
bfe29ec02863
6950075: nmethod sweeper should operate concurrently
never
parents:
1490
diff
changeset
|
1524 } |
12414
98031e66de15
Fix unittests
Christos Kotselidis <christos.kotselidis@oracle.com>
parents:
12411
diff
changeset
|
1525 #ifdef GRAAL |
13230
01080e31692d
fixed crash when TraceCreateZombies is enabled
Doug Simon <doug.simon@oracle.com>
parents:
13102
diff
changeset
|
1526 if (_graal_installed_code != NULL) { |
01080e31692d
fixed crash when TraceCreateZombies is enabled
Doug Simon <doug.simon@oracle.com>
parents:
13102
diff
changeset
|
1527 // Break the link between nmethod and HotSpotInstalledCode such that the nmethod can subsequently be flushed safely. |
01080e31692d
fixed crash when TraceCreateZombies is enabled
Doug Simon <doug.simon@oracle.com>
parents:
13102
diff
changeset
|
1528 HotSpotInstalledCode::set_codeBlob(_graal_installed_code, 0); |
01080e31692d
fixed crash when TraceCreateZombies is enabled
Doug Simon <doug.simon@oracle.com>
parents:
13102
diff
changeset
|
1529 } |
12414
98031e66de15
Fix unittests
Christos Kotselidis <christos.kotselidis@oracle.com>
parents:
12411
diff
changeset
|
1530 #endif |
1538
bfe29ec02863
6950075: nmethod sweeper should operate concurrently
never
parents:
1490
diff
changeset
|
1531 |
0 | 1532 if (TraceCreateZombies) { |
9707 | 1533 ResourceMark m; |
13230
01080e31692d
fixed crash when TraceCreateZombies is enabled
Doug Simon <doug.simon@oracle.com>
parents:
13102
diff
changeset
|
1534 tty->print_cr("nmethod <" INTPTR_FORMAT "> %s code made %s", this, this->method() ? this->method()->name_and_sig_as_C_string() : "null", (state == not_entrant) ? "not entrant" : "zombie"); |
0 | 1535 } |
1536 | |
13074
78da3894b86f
8027593: performance drop with constrained codecache starting with hs25 b111
anoll
parents:
13071
diff
changeset
|
1537 NMethodSweeper::report_state_change(this); |
1109
032260830071
5057818: codecache full and compiler disabled in bigapps fastdebug run
never
parents:
994
diff
changeset
|
1538 return true; |
0 | 1539 } |
1540 | |
1541 void nmethod::flush() { | |
1542 // Note that there are no valid oops in the nmethod anymore. | |
1543 assert(is_zombie() || (is_osr_method() && is_unloaded()), "must be a zombie method"); | |
1544 assert(is_marked_for_reclamation() || (is_osr_method() && is_unloaded()), "must be marked for reclamation"); | |
1545 | |
1546 assert (!is_locked_by_vm(), "locked methods shouldn't be flushed"); | |
1538
bfe29ec02863
6950075: nmethod sweeper should operate concurrently
never
parents:
1490
diff
changeset
|
1547 assert_locked_or_safepoint(CodeCache_lock); |
0 | 1548 |
1549 // completely deallocate this method | |
4872
aa3d708d67c4
7141200: log some interesting information in ring buffers for crashes
never
parents:
4006
diff
changeset
|
1550 Events::log(JavaThread::current(), "flushing nmethod " INTPTR_FORMAT, this); |
0 | 1551 if (PrintMethodFlushing) { |
1202 | 1552 tty->print_cr("*flushing nmethod %3d/" INTPTR_FORMAT ". Live blobs:" UINT32_FORMAT "/Free CodeCache:" SIZE_FORMAT "Kb", |
1553 _compile_id, this, CodeCache::nof_blobs(), CodeCache::unallocated_capacity()/1024); | |
0 | 1554 } |
1555 | |
1556 // We need to deallocate any ExceptionCache data. | |
1557 // Note that we do not need to grab the nmethod lock for this, it | |
1558 // better be thread safe if we're disposing of it! | |
1559 ExceptionCache* ec = exception_cache(); | |
1560 set_exception_cache(NULL); | |
1561 while(ec != NULL) { | |
1562 ExceptionCache* next = ec->next(); | |
1563 delete ec; | |
1564 ec = next; | |
1565 } | |
1566 | |
989
148e5441d916
6863023: need non-perm oops in code cache for JSR 292
jrose
parents:
931
diff
changeset
|
1567 if (on_scavenge_root_list()) { |
148e5441d916
6863023: need non-perm oops in code cache for JSR 292
jrose
parents:
931
diff
changeset
|
1568 CodeCache::drop_scavenge_root_nmethod(this); |
148e5441d916
6863023: need non-perm oops in code cache for JSR 292
jrose
parents:
931
diff
changeset
|
1569 } |
148e5441d916
6863023: need non-perm oops in code cache for JSR 292
jrose
parents:
931
diff
changeset
|
1570 |
1692 | 1571 #ifdef SHARK |
1845
a222fcfba398
6990549: Zero and Shark fixes after 6978355 and 6953144
twisti
parents:
1784
diff
changeset
|
1572 ((SharkCompiler *) compiler())->free_compiled_method(insts_begin()); |
1692 | 1573 #endif // SHARK |
1574 | |
0 | 1575 ((CodeBlob*)(this))->flush(); |
1576 | |
1577 CodeCache::free(this); | |
1578 } | |
1579 | |
1580 | |
1581 // | |
1582 // Notify all classes this nmethod is dependent on that it is no | |
1583 // longer dependent. This should only be called in two situations. | |
1584 // First, when a nmethod transitions to a zombie all dependents need | |
1585 // to be clear. Since zombification happens at a safepoint there's no | |
1586 // synchronization issues. The second place is a little more tricky. | |
1587 // During phase 1 of mark sweep class unloading may happen and as a | |
1588 // result some nmethods may get unloaded. In this case the flushing | |
1589 // of dependencies must happen during phase 1 since after GC any | |
1590 // dependencies in the unloaded nmethod won't be updated, so | |
1591 // traversing the dependency information in unsafe. In that case this | |
1592 // function is called with a non-NULL argument and this function only | |
1593 // notifies instanceKlasses that are reachable | |
1594 | |
1595 void nmethod::flush_dependencies(BoolObjectClosure* is_alive) { | |
1538
bfe29ec02863
6950075: nmethod sweeper should operate concurrently
never
parents:
1490
diff
changeset
|
1596 assert_locked_or_safepoint(CodeCache_lock); |
0 | 1597 assert(Universe::heap()->is_gc_active() == (is_alive != NULL), |
1598 "is_alive is non-NULL if and only if we are called during GC"); | |
1599 if (!has_flushed_dependencies()) { | |
1600 set_has_flushed_dependencies(); | |
1601 for (Dependencies::DepStream deps(this); deps.next(); ) { | |
6725
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6266
diff
changeset
|
1602 Klass* klass = deps.context_type(); |
0 | 1603 if (klass == NULL) continue; // ignore things like evol_method |
1604 | |
1605 // During GC the is_alive closure is non-NULL, and is used to | |
1606 // determine liveness of dependees that need to be updated. | |
6725
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6266
diff
changeset
|
1607 if (is_alive == NULL || klass->is_loader_alive(is_alive)) { |
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6266
diff
changeset
|
1608 InstanceKlass::cast(klass)->remove_dependent_nmethod(this); |
0 | 1609 } |
1610 } | |
1611 } | |
1612 } | |
1613 | |
1614 | |
1615 // If this oop is not live, the nmethod can be unloaded. | |
6787
8966c2d65d96
7200470: KeepAliveClosure not needed in CodeCache::do_unloading
brutisso
parents:
6725
diff
changeset
|
1616 bool nmethod::can_unload(BoolObjectClosure* is_alive, oop* root, bool unloading_occurred) { |
0 | 1617 assert(root != NULL, "just checking"); |
1618 oop obj = *root; | |
1619 if (obj == NULL || is_alive->do_object_b(obj)) { | |
1620 return false; | |
1621 } | |
6725
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6266
diff
changeset
|
1622 |
989
148e5441d916
6863023: need non-perm oops in code cache for JSR 292
jrose
parents:
931
diff
changeset
|
1623 // 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
|
1624 // 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
|
1625 // 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
|
1626 assert(unloading_occurred || ScavengeRootsInCode, "Inconsistency in unloading"); |
0 | 1627 make_unloaded(is_alive, obj); |
1628 return true; | |
1629 } | |
1630 | |
1631 // ------------------------------------------------------------------ | |
1632 // post_compiled_method_load_event | |
1633 // new method for install_code() path | |
1634 // Transfer information from compilation to jvmti | |
1635 void nmethod::post_compiled_method_load_event() { | |
1636 | |
6725
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6266
diff
changeset
|
1637 Method* moop = method(); |
4006 | 1638 #ifndef USDT2 |
0 | 1639 HS_DTRACE_PROBE8(hotspot, compiled__method__load, |
1640 moop->klass_name()->bytes(), | |
1641 moop->klass_name()->utf8_length(), | |
1642 moop->name()->bytes(), | |
1643 moop->name()->utf8_length(), | |
1644 moop->signature()->bytes(), | |
1645 moop->signature()->utf8_length(), | |
1748 | 1646 insts_begin(), insts_size()); |
4006 | 1647 #else /* USDT2 */ |
1648 HOTSPOT_COMPILED_METHOD_LOAD( | |
1649 (char *) moop->klass_name()->bytes(), | |
1650 moop->klass_name()->utf8_length(), | |
1651 (char *) moop->name()->bytes(), | |
1652 moop->name()->utf8_length(), | |
1653 (char *) moop->signature()->bytes(), | |
1654 moop->signature()->utf8_length(), | |
1655 insts_begin(), insts_size()); | |
1656 #endif /* USDT2 */ | |
0 | 1657 |
1616
38e8278318ca
6656830: assert((*p)->is_oop(),"expected an oop while scanning weak refs")
never
parents:
1602
diff
changeset
|
1658 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
|
1659 JvmtiExport::should_post_compiled_method_unload()) { |
38e8278318ca
6656830: assert((*p)->is_oop(),"expected an oop while scanning weak refs")
never
parents:
1602
diff
changeset
|
1660 get_and_cache_jmethod_id(); |
38e8278318ca
6656830: assert((*p)->is_oop(),"expected an oop while scanning weak refs")
never
parents:
1602
diff
changeset
|
1661 } |
38e8278318ca
6656830: assert((*p)->is_oop(),"expected an oop while scanning weak refs")
never
parents:
1602
diff
changeset
|
1662 |
0 | 1663 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
|
1664 // 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
|
1665 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
|
1666 JvmtiDeferredEventQueue::enqueue( |
bf8517f4e4d0
6766644: Redefinition of compiled method fails with assertion "Can not load classes with the Compiler thread"
kamg
parents:
2177
diff
changeset
|
1667 JvmtiDeferredEvent::compiled_method_load_event(this)); |
0 | 1668 } |
1669 } | |
1670 | |
1616
38e8278318ca
6656830: assert((*p)->is_oop(),"expected an oop while scanning weak refs")
never
parents:
1602
diff
changeset
|
1671 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
|
1672 if (_jmethod_id == NULL) { |
38e8278318ca
6656830: assert((*p)->is_oop(),"expected an oop while scanning weak refs")
never
parents:
1602
diff
changeset
|
1673 // 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
|
1674 // 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
|
1675 _jmethod_id = method()->jmethod_id(); |
38e8278318ca
6656830: assert((*p)->is_oop(),"expected an oop while scanning weak refs")
never
parents:
1602
diff
changeset
|
1676 } |
38e8278318ca
6656830: assert((*p)->is_oop(),"expected an oop while scanning weak refs")
never
parents:
1602
diff
changeset
|
1677 return _jmethod_id; |
38e8278318ca
6656830: assert((*p)->is_oop(),"expected an oop while scanning weak refs")
never
parents:
1602
diff
changeset
|
1678 } |
38e8278318ca
6656830: assert((*p)->is_oop(),"expected an oop while scanning weak refs")
never
parents:
1602
diff
changeset
|
1679 |
0 | 1680 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
|
1681 if (unload_reported()) { |
852d0157c696
6956931: assert(SafepointSynchronize::is_at_safepoint()) failed: must be executed at a safepoint
never
parents:
1563
diff
changeset
|
1682 // 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
|
1683 // and the unloading is reported during the first transition. |
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1684 return; |
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1685 } |
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1686 |
0 | 1687 assert(_method != NULL && !is_unloaded(), "just checking"); |
1688 DTRACE_METHOD_UNLOAD_PROBE(method()); | |
1689 | |
1690 // If a JVMTI agent has enabled the CompiledMethodUnload event then | |
1616
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1691 // post the event. Sometime later this nmethod will be made a zombie |
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1692 // by the sweeper but the Method* will not be valid at that point. |
1616
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1693 // If the _jmethod_id is null then no load event was ever requested |
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1694 // so don't bother posting the unload. The main reason for this is |
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1695 // that the jmethodID is a weak reference to the Method* so if |
1616
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1696 // it's being unloaded there's no way to look it up since the weak |
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1697 // ref will have been cleared. |
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1698 if (_jmethod_id != NULL && JvmtiExport::should_post_compiled_method_unload()) { |
0 | 1699 assert(!unload_reported(), "already unloaded"); |
2195
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1700 JvmtiDeferredEvent event = |
2342
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1701 JvmtiDeferredEvent::compiled_method_unload_event(this, |
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1702 _jmethod_id, insts_begin()); |
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1703 if (SafepointSynchronize::is_at_safepoint()) { |
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1704 // Don't want to take the queueing lock. Add it as pending and |
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1705 // it will get enqueued later. |
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1706 JvmtiDeferredEventQueue::add_pending_event(event); |
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1707 } else { |
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1708 MutexLockerEx ml(Service_lock, Mutex::_no_safepoint_check_flag); |
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1709 JvmtiDeferredEventQueue::enqueue(event); |
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1710 } |
0 | 1711 } |
1712 | |
1713 // The JVMTI CompiledMethodUnload event can be enabled or disabled at | |
1714 // any time. As the nmethod is being unloaded now we mark it has | |
1715 // having the unload event reported - this will ensure that we don't | |
1716 // attempt to report the event in the unlikely scenario where the | |
1717 // event is enabled at the time the nmethod is made a zombie. | |
1718 set_unload_reported(); | |
1719 } | |
1720 | |
1721 // This is called at the end of the strong tracing/marking phase of a | |
1722 // GC to unload an nmethod if it contains otherwise unreachable | |
1723 // oops. | |
1724 | |
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1725 void nmethod::do_unloading(BoolObjectClosure* is_alive, bool unloading_occurred) { |
0 | 1726 // Make sure the oop's ready to receive visitors |
1727 assert(!is_zombie() && !is_unloaded(), | |
1728 "should not call follow on zombie or unloaded nmethod"); | |
1729 | |
1730 // If the method is not entrant then a JMP is plastered over the | |
1731 // first few bytes. If an oop in the old code was there, that oop | |
1732 // should not get GC'd. Skip the first few bytes of oops on | |
1733 // not-entrant methods. | |
1734 address low_boundary = verified_entry_point(); | |
1735 if (is_not_entrant()) { | |
1736 low_boundary += NativeJump::instruction_size; | |
1737 // %%% Note: On SPARC we patch only a 4-byte trap, not a full NativeJump. | |
1738 // (See comment above.) | |
1739 } | |
1740 | |
1741 // The RedefineClasses() API can cause the class unloading invariant | |
1742 // to no longer be true. See jvmtiExport.hpp for details. | |
1743 // Also, leave a debugging breadcrumb in local flag. | |
1744 bool a_class_was_redefined = JvmtiExport::has_redefined_a_class(); | |
1745 if (a_class_was_redefined) { | |
1746 // This set of the unloading_occurred flag is done before the | |
1747 // call to post_compiled_method_unload() so that the unloading | |
1748 // of this nmethod is reported. | |
1749 unloading_occurred = true; | |
1750 } | |
1751 | |
9707 | 1752 #ifdef GRAAL |
1753 // Follow Graal method | |
1754 if (_graal_installed_code != NULL) { | |
1755 if (HotSpotNmethod::isDefault(_graal_installed_code)) { | |
1756 if (!is_alive->do_object_b(_graal_installed_code)) { | |
1757 _graal_installed_code = NULL; | |
1758 } | |
1759 } else { | |
1760 if (can_unload(is_alive, (oop*)&_graal_installed_code, unloading_occurred)) { | |
1761 return; | |
1762 } | |
1763 } | |
1764 } | |
13641
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1765 |
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1766 if (_speculation_log != NULL) { |
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1767 if (!is_alive->do_object_b(_speculation_log)) { |
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1768 _speculation_log = NULL; |
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1769 } |
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1770 } |
9707 | 1771 #endif |
1772 | |
0 | 1773 // Exception cache |
1774 ExceptionCache* ec = exception_cache(); | |
1775 while (ec != NULL) { | |
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1776 Klass* ex_klass = ec->exception_type(); |
0 | 1777 ExceptionCache* next_ec = ec->next(); |
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1778 if (ex_klass != NULL && !ex_klass->is_loader_alive(is_alive)) { |
0 | 1779 remove_from_exception_cache(ec); |
1780 } | |
1781 ec = next_ec; | |
1782 } | |
1783 | |
1784 // If class unloading occurred we first iterate over all inline caches and | |
1785 // clear ICs where the cached oop is referring to an unloaded klass or method. | |
1786 // The remaining live cached oops will be traversed in the relocInfo::oop_type | |
1787 // iteration below. | |
1788 if (unloading_occurred) { | |
1789 RelocIterator iter(this, low_boundary); | |
1790 while(iter.next()) { | |
1791 if (iter.type() == relocInfo::virtual_call_type) { | |
1792 CompiledIC *ic = CompiledIC_at(iter.reloc()); | |
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1793 if (ic->is_icholder_call()) { |
0 | 1794 // The only exception is compiledICHolder oops which may |
1795 // yet be marked below. (We check this further below). | |
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1796 CompiledICHolder* cichk_oop = ic->cached_icholder(); |
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1797 if (cichk_oop->holder_method()->method_holder()->is_loader_alive(is_alive) && |
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1798 cichk_oop->holder_klass()->is_loader_alive(is_alive)) { |
13441 | 1799 continue; |
1800 } | |
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1801 } else { |
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1802 Metadata* ic_oop = ic->cached_metadata(); |
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1803 if (ic_oop != NULL) { |
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1804 if (ic_oop->is_klass()) { |
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1805 if (((Klass*)ic_oop)->is_loader_alive(is_alive)) { |
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1806 continue; |
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1807 } |
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1808 } else if (ic_oop->is_method()) { |
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1809 if (((Method*)ic_oop)->method_holder()->is_loader_alive(is_alive)) { |
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1810 continue; |
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1811 } |
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1812 } else { |
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1813 ShouldNotReachHere(); |
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1814 } |
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1815 } |
13441 | 1816 } |
1817 ic->set_to_clean(); | |
0 | 1818 } |
1819 } | |
1820 } | |
1821 | |
1822 // Compiled code | |
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1823 { |
0 | 1824 RelocIterator iter(this, low_boundary); |
1825 while (iter.next()) { | |
1826 if (iter.type() == relocInfo::oop_type) { | |
1827 oop_Relocation* r = iter.oop_reloc(); | |
1828 // In this loop, we must only traverse those oops directly embedded in | |
1829 // the code. Other oops (oop_index>0) are seen as part of scopes_oops. | |
1830 assert(1 == (r->oop_is_immediate()) + | |
1831 (r->oop_addr() >= oops_begin() && r->oop_addr() < oops_end()), | |
1832 "oop must be found in exactly one place"); | |
1833 if (r->oop_is_immediate() && r->oop_value() != NULL) { | |
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1834 if (can_unload(is_alive, r->oop_addr(), unloading_occurred)) { |
0 | 1835 return; |
1836 } | |
1837 } | |
1838 } | |
1839 } | |
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1840 } |
0 | 1841 |
1842 | |
1843 // Scopes | |
1844 for (oop* p = oops_begin(); p < oops_end(); p++) { | |
1845 if (*p == Universe::non_oop_word()) continue; // skip non-oops | |
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1846 if (can_unload(is_alive, p, unloading_occurred)) { |
0 | 1847 return; |
1848 } | |
1849 } | |
1850 | |
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1851 // Ensure that all metadata is still alive |
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1852 verify_metadata_loaders(low_boundary, is_alive); |
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1853 } |
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1854 |
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1855 #ifdef ASSERT |
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1856 |
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1857 class CheckClass : AllStatic { |
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1858 static BoolObjectClosure* _is_alive; |
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1859 |
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1860 // Check class_loader is alive for this bit of metadata. |
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1861 static void check_class(Metadata* md) { |
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1862 Klass* klass = NULL; |
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1863 if (md->is_klass()) { |
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1864 klass = ((Klass*)md); |
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1865 } else if (md->is_method()) { |
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1866 klass = ((Method*)md)->method_holder(); |
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1867 } else if (md->is_methodData()) { |
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1868 klass = ((MethodData*)md)->method()->method_holder(); |
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1869 } else { |
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1870 md->print(); |
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1871 ShouldNotReachHere(); |
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1872 } |
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1873 assert(klass->is_loader_alive(_is_alive), "must be alive"); |
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1874 } |
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1875 public: |
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1876 static void do_check_class(BoolObjectClosure* is_alive, nmethod* nm) { |
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1877 assert(SafepointSynchronize::is_at_safepoint(), "this is only ok at safepoint"); |
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1878 _is_alive = is_alive; |
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1879 nm->metadata_do(check_class); |
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1880 } |
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1881 }; |
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1882 |
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1883 // This is called during a safepoint so can use static data |
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1884 BoolObjectClosure* CheckClass::_is_alive = NULL; |
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1885 #endif // ASSERT |
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1886 |
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1887 |
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1888 // Processing of oop references should have been sufficient to keep |
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1889 // all strong references alive. Any weak references should have been |
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1890 // cleared as well. Visit all the metadata and ensure that it's |
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1891 // really alive. |
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1892 void nmethod::verify_metadata_loaders(address low_boundary, BoolObjectClosure* is_alive) { |
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1893 #ifdef ASSERT |
0 | 1894 RelocIterator iter(this, low_boundary); |
1895 while (iter.next()) { | |
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1896 // static_stub_Relocations may have dangling references to |
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1897 // Method*s so trim them out here. Otherwise it looks like |
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1898 // compiled code is maintaining a link to dead metadata. |
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1899 address static_call_addr = NULL; |
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1900 if (iter.type() == relocInfo::opt_virtual_call_type) { |
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1901 CompiledIC* cic = CompiledIC_at(iter.reloc()); |
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1902 if (!cic->is_call_to_interpreted()) { |
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1903 static_call_addr = iter.addr(); |
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1904 } |
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1905 } else if (iter.type() == relocInfo::static_call_type) { |
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1906 CompiledStaticCall* csc = compiledStaticCall_at(iter.reloc()); |
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1907 if (!csc->is_call_to_interpreted()) { |
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1908 static_call_addr = iter.addr(); |
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1909 } |
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1910 } |
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1911 if (static_call_addr != NULL) { |
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1912 RelocIterator sciter(this, low_boundary); |
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1913 while (sciter.next()) { |
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1914 if (sciter.type() == relocInfo::static_stub_type && |
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1915 sciter.static_stub_reloc()->static_call() == static_call_addr) { |
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1916 sciter.static_stub_reloc()->clear_inline_cache(); |
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1917 } |
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1918 } |
0 | 1919 } |
1920 } | |
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1921 // Check that the metadata embedded in the nmethod is alive |
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1922 CheckClass::do_check_class(is_alive, this); |
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1923 #endif |
0 | 1924 } |
1925 | |
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1926 |
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1927 // Iterate over metadata calling this function. Used by RedefineClasses |
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1928 void nmethod::metadata_do(void f(Metadata*)) { |
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1929 address low_boundary = verified_entry_point(); |
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1930 if (is_not_entrant()) { |
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1931 low_boundary += NativeJump::instruction_size; |
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1932 // %%% Note: On SPARC we patch only a 4-byte trap, not a full NativeJump. |
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1933 // (See comment above.) |
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1934 } |
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1935 { |
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1936 // Visit all immediate references that are embedded in the instruction stream. |
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1937 RelocIterator iter(this, low_boundary); |
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1938 while (iter.next()) { |
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1939 if (iter.type() == relocInfo::metadata_type ) { |
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1940 metadata_Relocation* r = iter.metadata_reloc(); |
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1941 // In this lmetadata, we must only follow those metadatas directly embedded in |
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1942 // the code. Other metadatas (oop_index>0) are seen as part of |
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1943 // the metadata section below. |
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1944 assert(1 == (r->metadata_is_immediate()) + |
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1945 (r->metadata_addr() >= metadata_begin() && r->metadata_addr() < metadata_end()), |
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1946 "metadata must be found in exactly one place"); |
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1947 if (r->metadata_is_immediate() && r->metadata_value() != NULL) { |
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1948 Metadata* md = r->metadata_value(); |
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1949 f(md); |
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1950 } |
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1951 } else if (iter.type() == relocInfo::virtual_call_type) { |
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1952 // Check compiledIC holders associated with this nmethod |
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1953 CompiledIC *ic = CompiledIC_at(iter.reloc()); |
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1954 if (ic->is_icholder_call()) { |
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1955 CompiledICHolder* cichk = ic->cached_icholder(); |
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1956 f(cichk->holder_method()); |
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1957 f(cichk->holder_klass()); |
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1958 } else { |
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1959 Metadata* ic_oop = ic->cached_metadata(); |
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1960 if (ic_oop != NULL) { |
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1961 f(ic_oop); |
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1962 } |
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1963 } |
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1964 } |
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1965 } |
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1966 } |
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1967 |
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1968 // Visit the metadata section |
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1969 for (Metadata** p = metadata_begin(); p < metadata_end(); p++) { |
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1970 if (*p == Universe::non_oop_word() || *p == NULL) continue; // skip non-oops |
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1971 Metadata* md = *p; |
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1972 f(md); |
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1973 } |
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1974 |
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1975 // Call function Method*, not embedded in these other places. |
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1976 if (_method != NULL) f(_method); |
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1977 } |
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1978 |
12080 | 1979 void nmethod::oops_do(OopClosure* f, bool allow_zombie) { |
0 | 1980 // make sure the oops ready to receive visitors |
12080 | 1981 assert(allow_zombie || !is_zombie(), "should not call follow on zombie nmethod"); |
1982 assert(!is_unloaded(), "should not call follow on unloaded nmethod"); | |
0 | 1983 |
1984 // If the method is not entrant or zombie then a JMP is plastered over the | |
1985 // first few bytes. If an oop in the old code was there, that oop | |
1986 // should not get GC'd. Skip the first few bytes of oops on | |
1987 // not-entrant methods. | |
1988 address low_boundary = verified_entry_point(); | |
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1989 if (is_not_entrant() || is_zombie()) { |
0 | 1990 low_boundary += NativeJump::instruction_size; |
1991 // %%% Note: On SPARC we patch only a 4-byte trap, not a full NativeJump. | |
1992 // (See comment above.) | |
1993 } | |
1994 | |
9707 | 1995 #ifdef GRAAL |
1996 if (_graal_installed_code != NULL) { | |
1997 f->do_oop((oop*) &_graal_installed_code); | |
1998 } | |
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1999 if (_speculation_log != NULL) { |
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2000 f->do_oop((oop*) &_speculation_log); |
9707 | 2001 } |
2002 #endif | |
2003 | |
0 | 2004 RelocIterator iter(this, low_boundary); |
941 | 2005 |
0 | 2006 while (iter.next()) { |
2007 if (iter.type() == relocInfo::oop_type ) { | |
2008 oop_Relocation* r = iter.oop_reloc(); | |
2009 // In this loop, we must only follow those oops directly embedded in | |
2010 // the code. Other oops (oop_index>0) are seen as part of scopes_oops. | |
941 | 2011 assert(1 == (r->oop_is_immediate()) + |
2012 (r->oop_addr() >= oops_begin() && r->oop_addr() < oops_end()), | |
2013 "oop must be found in exactly one place"); | |
0 | 2014 if (r->oop_is_immediate() && r->oop_value() != NULL) { |
2015 f->do_oop(r->oop_addr()); | |
2016 } | |
2017 } | |
2018 } | |
2019 | |
2020 // Scopes | |
989
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2021 // This includes oop constants not inlined in the code stream. |
0 | 2022 for (oop* p = oops_begin(); p < oops_end(); p++) { |
2023 if (*p == Universe::non_oop_word()) continue; // skip non-oops | |
2024 f->do_oop(p); | |
2025 } | |
2026 } | |
2027 | |
989
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2028 #define NMETHOD_SENTINEL ((nmethod*)badAddress) |
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2029 |
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2030 nmethod* volatile nmethod::_oops_do_mark_nmethods; |
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2031 |
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2032 // An nmethod is "marked" if its _mark_link is set non-null. |
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2033 // Even if it is the end of the linked list, it will have a non-null link value, |
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2034 // as long as it is on the list. |
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2035 // This code must be MP safe, because it is used from parallel GC passes. |
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2036 bool nmethod::test_set_oops_do_mark() { |
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2037 assert(nmethod::oops_do_marking_is_active(), "oops_do_marking_prologue must be called"); |
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2038 nmethod* observed_mark_link = _oops_do_mark_link; |
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2039 if (observed_mark_link == NULL) { |
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2040 // Claim this nmethod for this thread to mark. |
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2041 observed_mark_link = (nmethod*) |
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2042 Atomic::cmpxchg_ptr(NMETHOD_SENTINEL, &_oops_do_mark_link, NULL); |
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2043 if (observed_mark_link == NULL) { |
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2044 |
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2045 // Atomically append this nmethod (now claimed) to the head of the list: |
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2046 nmethod* observed_mark_nmethods = _oops_do_mark_nmethods; |
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2047 for (;;) { |
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2048 nmethod* required_mark_nmethods = observed_mark_nmethods; |
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2049 _oops_do_mark_link = required_mark_nmethods; |
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2050 observed_mark_nmethods = (nmethod*) |
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2051 Atomic::cmpxchg_ptr(this, &_oops_do_mark_nmethods, required_mark_nmethods); |
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2052 if (observed_mark_nmethods == required_mark_nmethods) |
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2053 break; |
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2054 } |
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2055 // Mark was clear when we first saw this guy. |
2405
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2056 NOT_PRODUCT(if (TraceScavenge) print_on(tty, "oops_do, mark")); |
989
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2057 return false; |
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2058 } |
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2059 } |
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2060 // On fall through, another racing thread marked this nmethod before we did. |
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2061 return true; |
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2062 } |
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2063 |
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2064 void nmethod::oops_do_marking_prologue() { |
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2065 NOT_PRODUCT(if (TraceScavenge) tty->print_cr("[oops_do_marking_prologue")); |
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2066 assert(_oops_do_mark_nmethods == NULL, "must not call oops_do_marking_prologue twice in a row"); |
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2067 // We use cmpxchg_ptr instead of regular assignment here because the user |
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2068 // may fork a bunch of threads, and we need them all to see the same state. |
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2069 void* observed = Atomic::cmpxchg_ptr(NMETHOD_SENTINEL, &_oops_do_mark_nmethods, NULL); |
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2070 guarantee(observed == NULL, "no races in this sequential code"); |
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2071 } |
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2072 |
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2073 void nmethod::oops_do_marking_epilogue() { |
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2074 assert(_oops_do_mark_nmethods != NULL, "must not call oops_do_marking_epilogue twice in a row"); |
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2075 nmethod* cur = _oops_do_mark_nmethods; |
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2076 while (cur != NMETHOD_SENTINEL) { |
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2077 assert(cur != NULL, "not NULL-terminated"); |
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2078 nmethod* next = cur->_oops_do_mark_link; |
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2079 cur->_oops_do_mark_link = NULL; |
2375
d673ef06fe96
7028374: race in fix_oop_relocations for scavengeable nmethods
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2080 cur->fix_oop_relocations(); |
2405
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2081 NOT_PRODUCT(if (TraceScavenge) cur->print_on(tty, "oops_do, unmark")); |
989
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2082 cur = next; |
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2083 } |
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2084 void* required = _oops_do_mark_nmethods; |
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2085 void* observed = Atomic::cmpxchg_ptr(NULL, &_oops_do_mark_nmethods, required); |
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2086 guarantee(observed == required, "no races in this sequential code"); |
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2087 NOT_PRODUCT(if (TraceScavenge) tty->print_cr("oops_do_marking_epilogue]")); |
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|
2088 } |
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|
2089 |
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2090 class DetectScavengeRoot: public OopClosure { |
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|
2091 bool _detected_scavenge_root; |
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|
2092 public: |
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2093 DetectScavengeRoot() : _detected_scavenge_root(false) |
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2094 { NOT_PRODUCT(_print_nm = NULL); } |
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2095 bool detected_scavenge_root() { return _detected_scavenge_root; } |
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2096 virtual void do_oop(oop* p) { |
148e5441d916
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2097 if ((*p) != NULL && (*p)->is_scavengable()) { |
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|
2098 NOT_PRODUCT(maybe_print(p)); |
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|
2099 _detected_scavenge_root = true; |
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|
2100 } |
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|
2101 } |
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|
2102 virtual void do_oop(narrowOop* p) { ShouldNotReachHere(); } |
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|
2103 |
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|
2104 #ifndef PRODUCT |
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|
2105 nmethod* _print_nm; |
148e5441d916
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|
2106 void maybe_print(oop* p) { |
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|
2107 if (_print_nm == NULL) return; |
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|
2108 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
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|
2109 tty->print_cr(""PTR_FORMAT"[offset=%d] detected scavengable oop "PTR_FORMAT" (found at "PTR_FORMAT")", |
989
148e5441d916
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|
2110 _print_nm, (int)((intptr_t)p - (intptr_t)_print_nm), |
12316
190899198332
7195622: CheckUnhandledOops has limited usefulness now
hseigel
parents:
12175
diff
changeset
|
2111 (void *)(*p), (intptr_t)p); |
989
148e5441d916
6863023: need non-perm oops in code cache for JSR 292
jrose
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931
diff
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|
2112 (*p)->print(); |
148e5441d916
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diff
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|
2113 } |
148e5441d916
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diff
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|
2114 #endif //PRODUCT |
148e5441d916
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|
2115 }; |
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|
2116 |
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|
2117 bool nmethod::detect_scavenge_root_oops() { |
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|
2118 DetectScavengeRoot detect_scavenge_root; |
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|
2119 NOT_PRODUCT(if (TraceScavenge) detect_scavenge_root._print_nm = this); |
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|
2120 oops_do(&detect_scavenge_root); |
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|
2121 return detect_scavenge_root.detected_scavenge_root(); |
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|
2122 } |
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|
2123 |
0 | 2124 // Method that knows how to preserve outgoing arguments at call. This method must be |
2125 // called with a frame corresponding to a Java invoke | |
2126 void nmethod::preserve_callee_argument_oops(frame fr, const RegisterMap *reg_map, OopClosure* f) { | |
1692 | 2127 #ifndef SHARK |
0 | 2128 if (!method()->is_native()) { |
2129 SimpleScopeDesc ssd(this, fr.pc()); | |
2142 | 2130 Bytecode_invoke call(ssd.method(), ssd.bci()); |
10390 | 2131 bool has_receiver = call.has_receiver(); |
2132 bool has_appendix = call.has_appendix(); | |
2177
3582bf76420e
6990754: Use native memory and reference counting to implement SymbolTable
coleenp
parents:
2142
diff
changeset
|
2133 Symbol* signature = call.signature(); |
10390 | 2134 fr.oops_compiled_arguments_do(signature, has_receiver, has_appendix, reg_map, f); |
0 | 2135 } |
1692 | 2136 #endif // !SHARK |
0 | 2137 } |
2138 | |
2139 | |
2140 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
|
2141 RelocIterator iter(this, p, p + 1); |
0 | 2142 while (iter.next()) |
2143 if (iter.type() == relocInfo::oop_type) { | |
2144 return iter.oop_reloc()->oop_value(); | |
2145 } | |
2146 return NULL; | |
2147 } | |
2148 | |
2149 | |
2150 inline bool includes(void* p, void* from, void* to) { | |
2151 return from <= p && p < to; | |
2152 } | |
2153 | |
2154 | |
2155 void nmethod::copy_scopes_pcs(PcDesc* pcs, int count) { | |
2156 assert(count >= 2, "must be sentinel values, at least"); | |
2157 | |
2158 #ifdef ASSERT | |
2159 // must be sorted and unique; we do a binary search in find_pc_desc() | |
2160 int prev_offset = pcs[0].pc_offset(); | |
2161 assert(prev_offset == PcDesc::lower_offset_limit, | |
2162 "must start with a sentinel"); | |
2163 for (int i = 1; i < count; i++) { | |
2164 int this_offset = pcs[i].pc_offset(); | |
2165 assert(this_offset > prev_offset, "offsets must be sorted"); | |
2166 prev_offset = this_offset; | |
2167 } | |
2168 assert(prev_offset == PcDesc::upper_offset_limit, | |
2169 "must end with a sentinel"); | |
2170 #endif //ASSERT | |
2171 | |
1135
e66fd840cb6b
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1109
diff
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2172 // Search for MethodHandle invokes and tag the nmethod. |
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6893081: method handle & invokedynamic code needs additional cleanup (post 6815692, 6858164)
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1109
diff
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|
2173 for (int i = 0; i < count; i++) { |
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6893081: method handle & invokedynamic code needs additional cleanup (post 6815692, 6858164)
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diff
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|
2174 if (pcs[i].is_method_handle_invoke()) { |
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6893081: method handle & invokedynamic code needs additional cleanup (post 6815692, 6858164)
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|
2175 set_has_method_handle_invokes(true); |
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6893081: method handle & invokedynamic code needs additional cleanup (post 6815692, 6858164)
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diff
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|
2176 break; |
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6893081: method handle & invokedynamic code needs additional cleanup (post 6815692, 6858164)
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1109
diff
changeset
|
2177 } |
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|
2178 } |
2083
7d9caaedafce
6990933: assert(sender_cb) failed: sanity in frame::sender_for_interpreter_frame
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1972
diff
changeset
|
2179 assert(has_method_handle_invokes() == (_deoptimize_mh_offset != -1), "must have deopt mh handler"); |
1135
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2180 |
0 | 2181 int size = count * sizeof(PcDesc); |
2182 assert(scopes_pcs_size() >= size, "oob"); | |
2183 memcpy(scopes_pcs_begin(), pcs, size); | |
2184 | |
2185 // Adjust the final sentinel downward. | |
2186 PcDesc* last_pc = &scopes_pcs_begin()[count-1]; | |
2187 assert(last_pc->pc_offset() == PcDesc::upper_offset_limit, "sanity"); | |
1748 | 2188 last_pc->set_pc_offset(content_size() + 1); |
0 | 2189 for (; last_pc + 1 < scopes_pcs_end(); last_pc += 1) { |
2190 // Fill any rounding gaps with copies of the last record. | |
2191 last_pc[1] = last_pc[0]; | |
2192 } | |
2193 // The following assert could fail if sizeof(PcDesc) is not | |
2194 // an integral multiple of oopSize (the rounding term). | |
2195 // If it fails, change the logic to always allocate a multiple | |
2196 // of sizeof(PcDesc), and fill unused words with copies of *last_pc. | |
2197 assert(last_pc + 1 == scopes_pcs_end(), "must match exactly"); | |
2198 } | |
2199 | |
2200 void nmethod::copy_scopes_data(u_char* buffer, int size) { | |
2201 assert(scopes_data_size() >= size, "oob"); | |
2202 memcpy(scopes_data_begin(), buffer, size); | |
2203 } | |
2204 | |
2205 | |
2206 #ifdef ASSERT | |
2207 static PcDesc* linear_search(nmethod* nm, int pc_offset, bool approximate) { | |
2208 PcDesc* lower = nm->scopes_pcs_begin(); | |
2209 PcDesc* upper = nm->scopes_pcs_end(); | |
2210 lower += 1; // exclude initial sentinel | |
2211 PcDesc* res = NULL; | |
2212 for (PcDesc* p = lower; p < upper; p++) { | |
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|
2213 NOT_PRODUCT(--pc_nmethod_stats.pc_desc_tests); // don't count this call to match_desc |
0 | 2214 if (match_desc(p, pc_offset, approximate)) { |
2215 if (res == NULL) | |
2216 res = p; | |
2217 else | |
2218 res = (PcDesc*) badAddress; | |
2219 } | |
2220 } | |
2221 return res; | |
2222 } | |
2223 #endif | |
2224 | |
2225 | |
2226 // Finds a PcDesc with real-pc equal to "pc" | |
2227 PcDesc* nmethod::find_pc_desc_internal(address pc, bool approximate) { | |
1748 | 2228 address base_address = code_begin(); |
0 | 2229 if ((pc < base_address) || |
2230 (pc - base_address) >= (ptrdiff_t) PcDesc::upper_offset_limit) { | |
2231 return NULL; // PC is wildly out of range | |
2232 } | |
2233 int pc_offset = (int) (pc - base_address); | |
2234 | |
2235 // Check the PcDesc cache if it contains the desired PcDesc | |
2236 // (This as an almost 100% hit rate.) | |
2237 PcDesc* res = _pc_desc_cache.find_pc_desc(pc_offset, approximate); | |
2238 if (res != NULL) { | |
2239 assert(res == linear_search(this, pc_offset, approximate), "cache ok"); | |
2240 return res; | |
2241 } | |
2242 | |
2243 // Fallback algorithm: quasi-linear search for the PcDesc | |
2244 // Find the last pc_offset less than the given offset. | |
2245 // The successor must be the required match, if there is a match at all. | |
2246 // (Use a fixed radix to avoid expensive affine pointer arithmetic.) | |
2247 PcDesc* lower = scopes_pcs_begin(); | |
2248 PcDesc* upper = scopes_pcs_end(); | |
2249 upper -= 1; // exclude final sentinel | |
2250 if (lower >= upper) return NULL; // native method; no PcDescs at all | |
2251 | |
2252 #define assert_LU_OK \ | |
2253 /* invariant on lower..upper during the following search: */ \ | |
2254 assert(lower->pc_offset() < pc_offset, "sanity"); \ | |
2255 assert(upper->pc_offset() >= pc_offset, "sanity") | |
2256 assert_LU_OK; | |
2257 | |
2258 // Use the last successful return as a split point. | |
2259 PcDesc* mid = _pc_desc_cache.last_pc_desc(); | |
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Gilles Duboscq <duboscq@ssw.jku.at>
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|
2260 NOT_PRODUCT(++pc_nmethod_stats.pc_desc_searches); |
0 | 2261 if (mid->pc_offset() < pc_offset) { |
2262 lower = mid; | |
2263 } else { | |
2264 upper = mid; | |
2265 } | |
2266 | |
2267 // Take giant steps at first (4096, then 256, then 16, then 1) | |
2268 const int LOG2_RADIX = 4 /*smaller steps in debug mode:*/ debug_only(-1); | |
2269 const int RADIX = (1 << LOG2_RADIX); | |
2270 for (int step = (1 << (LOG2_RADIX*3)); step > 1; step >>= LOG2_RADIX) { | |
2271 while ((mid = lower + step) < upper) { | |
2272 assert_LU_OK; | |
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changeset
|
2273 NOT_PRODUCT(++pc_nmethod_stats.pc_desc_searches); |
0 | 2274 if (mid->pc_offset() < pc_offset) { |
2275 lower = mid; | |
2276 } else { | |
2277 upper = mid; | |
2278 break; | |
2279 } | |
2280 } | |
2281 assert_LU_OK; | |
2282 } | |
2283 | |
2284 // Sneak up on the value with a linear search of length ~16. | |
2285 while (true) { | |
2286 assert_LU_OK; | |
2287 mid = lower + 1; | |
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2288 NOT_PRODUCT(++pc_nmethod_stats.pc_desc_searches); |
0 | 2289 if (mid->pc_offset() < pc_offset) { |
2290 lower = mid; | |
2291 } else { | |
2292 upper = mid; | |
2293 break; | |
2294 } | |
2295 } | |
2296 #undef assert_LU_OK | |
2297 | |
2298 if (match_desc(upper, pc_offset, approximate)) { | |
2299 assert(upper == linear_search(this, pc_offset, approximate), "search ok"); | |
2300 _pc_desc_cache.add_pc_desc(upper); | |
2301 return upper; | |
2302 } else { | |
2303 assert(NULL == linear_search(this, pc_offset, approximate), "search ok"); | |
2304 return NULL; | |
2305 } | |
2306 } | |
2307 | |
2308 | |
2309 bool nmethod::check_all_dependencies() { | |
2310 bool found_check = false; | |
2311 // wholesale check of all dependencies | |
2312 for (Dependencies::DepStream deps(this); deps.next(); ) { | |
2313 if (deps.check_dependency() != NULL) { | |
2314 found_check = true; | |
2315 NOT_DEBUG(break); | |
2316 } | |
2317 } | |
2318 return found_check; // tell caller if we found anything | |
2319 } | |
2320 | |
2321 bool nmethod::check_dependency_on(DepChange& changes) { | |
2322 // What has happened: | |
2323 // 1) a new class dependee has been added | |
2324 // 2) dependee and all its super classes have been marked | |
2325 bool found_check = false; // set true if we are upset | |
2326 for (Dependencies::DepStream deps(this); deps.next(); ) { | |
2327 // Evaluate only relevant dependencies. | |
2328 if (deps.spot_check_dependency_at(changes) != NULL) { | |
2329 found_check = true; | |
2330 NOT_DEBUG(break); | |
2331 } | |
2332 } | |
2333 return found_check; | |
2334 } | |
2335 | |
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2336 bool nmethod::is_evol_dependent_on(Klass* dependee) { |
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2337 InstanceKlass *dependee_ik = InstanceKlass::cast(dependee); |
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2338 Array<Method*>* dependee_methods = dependee_ik->methods(); |
0 | 2339 for (Dependencies::DepStream deps(this); deps.next(); ) { |
2340 if (deps.type() == Dependencies::evol_method) { | |
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2341 Method* method = deps.method_argument(0); |
0 | 2342 for (int j = 0; j < dependee_methods->length(); j++) { |
6725
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2343 if (dependee_methods->at(j) == method) { |
0 | 2344 // RC_TRACE macro has an embedded ResourceMark |
2345 RC_TRACE(0x01000000, | |
2346 ("Found evol dependency of nmethod %s.%s(%s) compile_id=%d on method %s.%s(%s)", | |
6725
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2347 _method->method_holder()->external_name(), |
0 | 2348 _method->name()->as_C_string(), |
2349 _method->signature()->as_C_string(), compile_id(), | |
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2350 method->method_holder()->external_name(), |
0 | 2351 method->name()->as_C_string(), |
2352 method->signature()->as_C_string())); | |
2353 if (TraceDependencies || LogCompilation) | |
2354 deps.log_dependency(dependee); | |
2355 return true; | |
2356 } | |
2357 } | |
2358 } | |
2359 } | |
2360 return false; | |
2361 } | |
2362 | |
2363 // Called from mark_for_deoptimization, when dependee is invalidated. | |
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2364 bool nmethod::is_dependent_on_method(Method* dependee) { |
0 | 2365 for (Dependencies::DepStream deps(this); deps.next(); ) { |
2366 if (deps.type() != Dependencies::evol_method) | |
2367 continue; | |
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2368 Method* method = deps.method_argument(0); |
0 | 2369 if (method == dependee) return true; |
2370 } | |
2371 return false; | |
2372 } | |
2373 | |
2374 | |
2375 bool nmethod::is_patchable_at(address instr_addr) { | |
1748 | 2376 assert(insts_contains(instr_addr), "wrong nmethod used"); |
0 | 2377 if (is_zombie()) { |
2378 // a zombie may never be patched | |
2379 return false; | |
2380 } | |
2381 return true; | |
2382 } | |
2383 | |
2384 | |
2385 address nmethod::continuation_for_implicit_exception(address pc) { | |
2386 // Exception happened outside inline-cache check code => we are inside | |
2387 // an active nmethod => use cpc to determine a return address | |
1748 | 2388 int exception_offset = pc - code_begin(); |
0 | 2389 int cont_offset = ImplicitExceptionTable(this).at( exception_offset ); |
2390 #ifdef ASSERT | |
2391 if (cont_offset == 0) { | |
2392 Thread* thread = ThreadLocalStorage::get_thread_slow(); | |
2393 ResetNoHandleMark rnm; // Might be called from LEAF/QUICK ENTRY | |
2394 HandleMark hm(thread); | |
2395 ResourceMark rm(thread); | |
2396 CodeBlob* cb = CodeCache::find_blob(pc); | |
2397 assert(cb != NULL && cb == this, ""); | |
2398 tty->print_cr("implicit exception happened at " INTPTR_FORMAT, pc); | |
2399 print(); | |
2400 method()->print_codes(); | |
2401 print_code(); | |
2402 print_pcs(); | |
2403 } | |
2404 #endif | |
1250 | 2405 if (cont_offset == 0) { |
2406 // Let the normal error handling report the exception | |
2407 return NULL; | |
2408 } | |
1748 | 2409 return code_begin() + cont_offset; |
0 | 2410 } |
2411 | |
2412 | |
2413 | |
2414 void nmethod_init() { | |
2415 // make sure you didn't forget to adjust the filler fields | |
2416 assert(sizeof(nmethod) % oopSize == 0, "nmethod size must be multiple of a word"); | |
2417 } | |
2418 | |
2419 | |
2420 //------------------------------------------------------------------------------------------- | |
2421 | |
2422 | |
2423 // QQQ might we make this work from a frame?? | |
2424 nmethodLocker::nmethodLocker(address pc) { | |
2425 CodeBlob* cb = CodeCache::find_blob(pc); | |
2426 guarantee(cb != NULL && cb->is_nmethod(), "bad pc for a nmethod found"); | |
2427 _nm = (nmethod*)cb; | |
2428 lock_nmethod(_nm); | |
2429 } | |
2430 | |
2342
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2431 // Only JvmtiDeferredEvent::compiled_method_unload_event() |
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|
2432 // should pass zombie_ok == true. |
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|
2433 void nmethodLocker::lock_nmethod(nmethod* nm, bool zombie_ok) { |
0 | 2434 if (nm == NULL) return; |
2435 Atomic::inc(&nm->_lock_count); | |
2342
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|
2436 guarantee(zombie_ok || !nm->is_zombie(), "cannot lock a zombie method"); |
0 | 2437 } |
2438 | |
2439 void nmethodLocker::unlock_nmethod(nmethod* nm) { | |
2440 if (nm == NULL) return; | |
2441 Atomic::dec(&nm->_lock_count); | |
2442 guarantee(nm->_lock_count >= 0, "unmatched nmethod lock/unlock"); | |
2443 } | |
2444 | |
1204 | 2445 |
2446 // ----------------------------------------------------------------------------- | |
2447 // nmethod::get_deopt_original_pc | |
2448 // | |
2449 // Return the original PC for the given PC if: | |
2450 // (a) the given PC belongs to a nmethod and | |
2451 // (b) it is a deopt PC | |
2452 address nmethod::get_deopt_original_pc(const frame* fr) { | |
2453 if (fr->cb() == NULL) return NULL; | |
2454 | |
2455 nmethod* nm = fr->cb()->as_nmethod_or_null(); | |
2456 if (nm != NULL && nm->is_deopt_pc(fr->pc())) | |
2457 return nm->get_original_pc(fr); | |
2458 | |
2459 return NULL; | |
0 | 2460 } |
2461 | |
2462 | |
2463 // ----------------------------------------------------------------------------- | |
1135
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2464 // MethodHandle |
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2465 |
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2466 bool nmethod::is_method_handle_return(address return_pc) { |
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2467 if (!has_method_handle_invokes()) return false; |
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2468 PcDesc* pd = pc_desc_at(return_pc); |
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2469 if (pd == NULL) |
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2470 return false; |
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2471 return pd->is_method_handle_invoke(); |
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2472 } |
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2473 |
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|
2474 |
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2475 // ----------------------------------------------------------------------------- |
0 | 2476 // Verification |
2477 | |
989
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2478 class VerifyOopsClosure: public OopClosure { |
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2479 nmethod* _nm; |
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|
2480 bool _ok; |
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|
2481 public: |
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2482 VerifyOopsClosure(nmethod* nm) : _nm(nm), _ok(true) { } |
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2483 bool ok() { return _ok; } |
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|
2484 virtual void do_oop(oop* p) { |
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6863023: need non-perm oops in code cache for JSR 292
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|
2485 if ((*p) == NULL || (*p)->is_oop()) return; |
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|
2486 if (_ok) { |
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|
2487 _nm->print_nmethod(true); |
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|
2488 _ok = false; |
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|
2489 } |
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|
2490 tty->print_cr("*** non-oop "PTR_FORMAT" found at "PTR_FORMAT" (offset %d)", |
12316
190899198332
7195622: CheckUnhandledOops has limited usefulness now
hseigel
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12175
diff
changeset
|
2491 (void *)(*p), (intptr_t)p, (int)((intptr_t)p - (intptr_t)_nm)); |
989
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|
2492 } |
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|
2493 virtual void do_oop(narrowOop* p) { ShouldNotReachHere(); } |
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|
2494 }; |
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2495 |
0 | 2496 void nmethod::verify() { |
2497 | |
2498 // Hmm. OSR methods can be deopted but not marked as zombie or not_entrant | |
2499 // seems odd. | |
2500 | |
2501 if( is_zombie() || is_not_entrant() ) | |
2502 return; | |
2503 | |
2504 // Make sure all the entry points are correctly aligned for patching. | |
2505 NativeJump::check_verified_entry_alignment(entry_point(), verified_entry_point()); | |
2506 | |
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2507 // assert(method()->is_oop(), "must be valid"); |
0 | 2508 |
2509 ResourceMark rm; | |
2510 | |
2511 if (!CodeCache::contains(this)) { | |
1490
f03d0a26bf83
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diff
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|
2512 fatal(err_msg("nmethod at " INTPTR_FORMAT " not in zone", this)); |
0 | 2513 } |
2514 | |
2515 if(is_native_method() ) | |
2516 return; | |
2517 | |
2518 nmethod* nm = CodeCache::find_nmethod(verified_entry_point()); | |
2519 if (nm != this) { | |
1490
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2520 fatal(err_msg("findNMethod did not find this nmethod (" INTPTR_FORMAT ")", |
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|
2521 this)); |
0 | 2522 } |
2523 | |
2524 for (PcDesc* p = scopes_pcs_begin(); p < scopes_pcs_end(); p++) { | |
2525 if (! p->verify(this)) { | |
2526 tty->print_cr("\t\tin nmethod at " INTPTR_FORMAT " (pcs)", this); | |
2527 } | |
2528 } | |
2529 | |
989
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|
2530 VerifyOopsClosure voc(this); |
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|
2531 oops_do(&voc); |
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|
2532 assert(voc.ok(), "embedded oops must be OK"); |
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|
2533 verify_scavenge_root_oops(); |
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|
2534 |
0 | 2535 verify_scopes(); |
2536 } | |
2537 | |
2538 | |
2539 void nmethod::verify_interrupt_point(address call_site) { | |
13071
e2509677809c
8023037: Race between ciEnv::register_method and nmethod::make_not_entrant_or_zombie
vlivanov
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12334
diff
changeset
|
2540 // Verify IC only when nmethod installation is finished. |
13441 | 2541 bool is_installed = (method()->code() == this) // nmethod is in state 'in_use' and installed |
2542 || !this->is_in_use(); // nmethod is installed, but not in 'in_use' state | |
13071
e2509677809c
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diff
changeset
|
2543 if (is_installed) { |
e2509677809c
8023037: Race between ciEnv::register_method and nmethod::make_not_entrant_or_zombie
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diff
changeset
|
2544 Thread *cur = Thread::current(); |
e2509677809c
8023037: Race between ciEnv::register_method and nmethod::make_not_entrant_or_zombie
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12334
diff
changeset
|
2545 if (CompiledIC_lock->owner() == cur || |
e2509677809c
8023037: Race between ciEnv::register_method and nmethod::make_not_entrant_or_zombie
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12334
diff
changeset
|
2546 ((cur->is_VM_thread() || cur->is_ConcurrentGC_thread()) && |
e2509677809c
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vlivanov
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12334
diff
changeset
|
2547 SafepointSynchronize::is_at_safepoint())) { |
e2509677809c
8023037: Race between ciEnv::register_method and nmethod::make_not_entrant_or_zombie
vlivanov
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diff
changeset
|
2548 CompiledIC_at(this, call_site); |
e2509677809c
8023037: Race between ciEnv::register_method and nmethod::make_not_entrant_or_zombie
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changeset
|
2549 CHECK_UNHANDLED_OOPS_ONLY(Thread::current()->clear_unhandled_oops()); |
e2509677809c
8023037: Race between ciEnv::register_method and nmethod::make_not_entrant_or_zombie
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|
2550 } else { |
e2509677809c
8023037: Race between ciEnv::register_method and nmethod::make_not_entrant_or_zombie
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changeset
|
2551 MutexLocker ml_verify (CompiledIC_lock); |
e2509677809c
8023037: Race between ciEnv::register_method and nmethod::make_not_entrant_or_zombie
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changeset
|
2552 CompiledIC_at(this, call_site); |
e2509677809c
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vlivanov
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|
2553 } |
0 | 2554 } |
13071
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|
2555 |
e2509677809c
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|
2556 PcDesc* pd = pc_desc_at(nativeCall_at(call_site)->return_address()); |
0 | 2557 assert(pd != NULL, "PcDesc must exist"); |
2558 for (ScopeDesc* sd = new ScopeDesc(this, pd->scope_decode_offset(), | |
9707 | 2559 pd->obj_decode_offset(), pd->should_reexecute(), pd->rethrow_exception(), |
1253
f70b0d9ab095
6910618: C2: Error: assert(d->is_oop(),"JVM_ArrayCopy: dst not an oop")
kvn
parents:
1250
diff
changeset
|
2560 pd->return_oop()); |
0 | 2561 !sd->is_top(); sd = sd->sender()) { |
2562 sd->verify(); | |
2563 } | |
2564 } | |
2565 | |
2566 void nmethod::verify_scopes() { | |
2567 if( !method() ) return; // Runtime stubs have no scope | |
2568 if (method()->is_native()) return; // Ignore stub methods. | |
2569 // iterate through all interrupt point | |
2570 // and verify the debug information is valid. | |
2571 RelocIterator iter((nmethod*)this); | |
2572 while (iter.next()) { | |
2573 address stub = NULL; | |
2574 switch (iter.type()) { | |
2575 case relocInfo::virtual_call_type: | |
2576 verify_interrupt_point(iter.addr()); | |
2577 break; | |
2578 case relocInfo::opt_virtual_call_type: | |
2579 stub = iter.opt_virtual_call_reloc()->static_stub(); | |
2580 verify_interrupt_point(iter.addr()); | |
2581 break; | |
2582 case relocInfo::static_call_type: | |
2583 stub = iter.static_call_reloc()->static_stub(); | |
2584 //verify_interrupt_point(iter.addr()); | |
2585 break; | |
2586 case relocInfo::runtime_call_type: | |
2587 address destination = iter.reloc()->value(); | |
2588 // Right now there is no way to find out which entries support | |
2589 // an interrupt point. It would be nice if we had this | |
2590 // information in a table. | |
2591 break; | |
2592 } | |
2593 assert(stub == NULL || stub_contains(stub), "static call stub outside stub section"); | |
2594 } | |
2595 } | |
2596 | |
2597 | |
2598 // ----------------------------------------------------------------------------- | |
2599 // Non-product code | |
2600 #ifndef PRODUCT | |
2601 | |
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2602 class DebugScavengeRoot: public OopClosure { |
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2603 nmethod* _nm; |
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2604 bool _ok; |
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2605 public: |
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2606 DebugScavengeRoot(nmethod* nm) : _nm(nm), _ok(true) { } |
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2607 bool ok() { return _ok; } |
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2608 virtual void do_oop(oop* p) { |
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2609 if ((*p) == NULL || !(*p)->is_scavengable()) return; |
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2610 if (_ok) { |
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2611 _nm->print_nmethod(true); |
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2612 _ok = false; |
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2613 } |
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2614 tty->print_cr("*** scavengable oop "PTR_FORMAT" found at "PTR_FORMAT" (offset %d)", |
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2615 (void *)(*p), (intptr_t)p, (int)((intptr_t)p - (intptr_t)_nm)); |
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2616 (*p)->print(); |
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2617 } |
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2618 virtual void do_oop(narrowOop* p) { ShouldNotReachHere(); } |
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2619 }; |
0 | 2620 |
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2621 void nmethod::verify_scavenge_root_oops() { |
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2622 if (!on_scavenge_root_list()) { |
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2623 // Actually look inside, to verify the claim that it's clean. |
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2624 DebugScavengeRoot debug_scavenge_root(this); |
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2625 oops_do(&debug_scavenge_root); |
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2626 if (!debug_scavenge_root.ok()) |
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2627 fatal("found an unadvertised bad scavengable oop in the code cache"); |
0 | 2628 } |
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2629 assert(scavenge_root_not_marked(), ""); |
0 | 2630 } |
2631 | |
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2632 #endif // PRODUCT |
0 | 2633 |
2634 // Printing operations | |
2635 | |
2636 void nmethod::print() const { | |
2637 ResourceMark rm; | |
2638 ttyLocker ttyl; // keep the following output all in one block | |
2639 | |
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2640 tty->print("Compiled method "); |
0 | 2641 |
2642 if (is_compiled_by_c1()) { | |
2643 tty->print("(c1) "); | |
2644 } else if (is_compiled_by_c2()) { | |
2645 tty->print("(c2) "); | |
1692 | 2646 } else if (is_compiled_by_shark()) { |
2647 tty->print("(shark) "); | |
9707 | 2648 } else if (is_compiled_by_graal()) { |
2649 tty->print("(Graal) "); | |
0 | 2650 } else { |
2651 tty->print("(nm) "); | |
2652 } | |
2653 | |
2405
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2654 print_on(tty, NULL); |
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2655 |
0 | 2656 if (WizardMode) { |
2657 tty->print("((nmethod*) "INTPTR_FORMAT ") ", this); | |
2658 tty->print(" for method " INTPTR_FORMAT , (address)method()); | |
2659 tty->print(" { "); | |
2660 if (is_in_use()) tty->print("in_use "); | |
2661 if (is_not_entrant()) tty->print("not_entrant "); | |
2662 if (is_zombie()) tty->print("zombie "); | |
2663 if (is_unloaded()) tty->print("unloaded "); | |
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2664 if (on_scavenge_root_list()) tty->print("scavenge_root "); |
0 | 2665 tty->print_cr("}:"); |
2666 } | |
2667 if (size () > 0) tty->print_cr(" total in heap [" INTPTR_FORMAT "," INTPTR_FORMAT "] = %d", | |
2668 (address)this, | |
2669 (address)this + size(), | |
2670 size()); | |
2671 if (relocation_size () > 0) tty->print_cr(" relocation [" INTPTR_FORMAT "," INTPTR_FORMAT "] = %d", | |
2672 relocation_begin(), | |
2673 relocation_end(), | |
2674 relocation_size()); | |
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2675 if (consts_size () > 0) tty->print_cr(" constants [" INTPTR_FORMAT "," INTPTR_FORMAT "] = %d", |
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2676 consts_begin(), |
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|
2677 consts_end(), |
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|
2678 consts_size()); |
1748 | 2679 if (insts_size () > 0) tty->print_cr(" main code [" INTPTR_FORMAT "," INTPTR_FORMAT "] = %d", |
2680 insts_begin(), | |
2681 insts_end(), | |
2682 insts_size()); | |
0 | 2683 if (stub_size () > 0) tty->print_cr(" stub code [" INTPTR_FORMAT "," INTPTR_FORMAT "] = %d", |
2684 stub_begin(), | |
2685 stub_end(), | |
2686 stub_size()); | |
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2687 if (oops_size () > 0) tty->print_cr(" oops [" INTPTR_FORMAT "," INTPTR_FORMAT "] = %d", |
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2688 oops_begin(), |
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2689 oops_end(), |
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2690 oops_size()); |
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2691 if (metadata_size () > 0) tty->print_cr(" metadata [" INTPTR_FORMAT "," INTPTR_FORMAT "] = %d", |
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2692 metadata_begin(), |
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2693 metadata_end(), |
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2694 metadata_size()); |
0 | 2695 if (scopes_data_size () > 0) tty->print_cr(" scopes data [" INTPTR_FORMAT "," INTPTR_FORMAT "] = %d", |
2696 scopes_data_begin(), | |
2697 scopes_data_end(), | |
2698 scopes_data_size()); | |
2699 if (scopes_pcs_size () > 0) tty->print_cr(" scopes pcs [" INTPTR_FORMAT "," INTPTR_FORMAT "] = %d", | |
2700 scopes_pcs_begin(), | |
2701 scopes_pcs_end(), | |
2702 scopes_pcs_size()); | |
2703 if (dependencies_size () > 0) tty->print_cr(" dependencies [" INTPTR_FORMAT "," INTPTR_FORMAT "] = %d", | |
2704 dependencies_begin(), | |
2705 dependencies_end(), | |
2706 dependencies_size()); | |
2707 if (handler_table_size() > 0) tty->print_cr(" handler table [" INTPTR_FORMAT "," INTPTR_FORMAT "] = %d", | |
2708 handler_table_begin(), | |
2709 handler_table_end(), | |
2710 handler_table_size()); | |
2711 if (nul_chk_table_size() > 0) tty->print_cr(" nul chk table [" INTPTR_FORMAT "," INTPTR_FORMAT "] = %d", | |
2712 nul_chk_table_begin(), | |
2713 nul_chk_table_end(), | |
2714 nul_chk_table_size()); | |
2715 } | |
2716 | |
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2717 void nmethod::print_code() { |
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2718 HandleMark hm; |
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|
2719 ResourceMark m; |
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|
2720 Disassembler::decode(this); |
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|
2721 } |
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2722 |
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2723 |
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2724 #ifndef PRODUCT |
0 | 2725 |
2726 void nmethod::print_scopes() { | |
2727 // Find the first pc desc for all scopes in the code and print it. | |
2728 ResourceMark rm; | |
2729 for (PcDesc* p = scopes_pcs_begin(); p < scopes_pcs_end(); p++) { | |
2730 if (p->scope_decode_offset() == DebugInformationRecorder::serialized_null) | |
2731 continue; | |
2732 | |
2733 ScopeDesc* sd = scope_desc_at(p->real_pc(this)); | |
2734 sd->print_on(tty, p); | |
2735 } | |
2736 } | |
2737 | |
2738 void nmethod::print_dependencies() { | |
2739 ResourceMark rm; | |
2740 ttyLocker ttyl; // keep the following output all in one block | |
2741 tty->print_cr("Dependencies:"); | |
2742 for (Dependencies::DepStream deps(this); deps.next(); ) { | |
2743 deps.print_dependency(); | |
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2744 Klass* ctxk = deps.context_type(); |
0 | 2745 if (ctxk != NULL) { |
6983 | 2746 if (ctxk->oop_is_instance() && ((InstanceKlass*)ctxk)->is_dependent_nmethod(this)) { |
2747 tty->print_cr(" [nmethod<=klass]%s", ctxk->external_name()); | |
0 | 2748 } |
2749 } | |
2750 deps.log_dependency(); // put it into the xml log also | |
2751 } | |
2752 } | |
2753 | |
2754 | |
2755 void nmethod::print_relocations() { | |
2756 ResourceMark m; // in case methods get printed via the debugger | |
2757 tty->print_cr("relocations:"); | |
2758 RelocIterator iter(this); | |
2759 iter.print(); | |
2760 if (UseRelocIndex) { | |
2761 jint* index_end = (jint*)relocation_end() - 1; | |
2762 jint index_size = *index_end; | |
2763 jint* index_start = (jint*)( (address)index_end - index_size ); | |
2764 tty->print_cr(" index @" INTPTR_FORMAT ": index_size=%d", index_start, index_size); | |
2765 if (index_size > 0) { | |
2766 jint* ip; | |
2767 for (ip = index_start; ip+2 <= index_end; ip += 2) | |
2768 tty->print_cr(" (%d %d) addr=" INTPTR_FORMAT " @" INTPTR_FORMAT, | |
2769 ip[0], | |
2770 ip[1], | |
2771 header_end()+ip[0], | |
2772 relocation_begin()-1+ip[1]); | |
2773 for (; ip < index_end; ip++) | |
2774 tty->print_cr(" (%d ?)", ip[0]); | |
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ef57c43512d6
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2775 tty->print_cr(" @" INTPTR_FORMAT ": index_size=%d", ip, *ip); |
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|
2776 ip++; |
0 | 2777 tty->print_cr("reloc_end @" INTPTR_FORMAT ":", ip); |
2778 } | |
2779 } | |
2780 } | |
2781 | |
2782 | |
2783 void nmethod::print_pcs() { | |
2784 ResourceMark m; // in case methods get printed via debugger | |
2785 tty->print_cr("pc-bytecode offsets:"); | |
2786 for (PcDesc* p = scopes_pcs_begin(); p < scopes_pcs_end(); p++) { | |
2787 p->print(this); | |
2788 } | |
2789 } | |
2790 | |
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2791 #endif // PRODUCT |
0 | 2792 |
2793 const char* nmethod::reloc_string_for(u_char* begin, u_char* end) { | |
2794 RelocIterator iter(this, begin, end); | |
2795 bool have_one = false; | |
2796 while (iter.next()) { | |
2797 have_one = true; | |
2798 switch (iter.type()) { | |
2799 case relocInfo::none: return "no_reloc"; | |
2800 case relocInfo::oop_type: { | |
2801 stringStream st; | |
2802 oop_Relocation* r = iter.oop_reloc(); | |
2803 oop obj = r->oop_value(); | |
2804 st.print("oop("); | |
2805 if (obj == NULL) st.print("NULL"); | |
2806 else obj->print_value_on(&st); | |
2807 st.print(")"); | |
2808 return st.as_string(); | |
2809 } | |
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2810 case relocInfo::metadata_type: { |
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2811 stringStream st; |
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2812 metadata_Relocation* r = iter.metadata_reloc(); |
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2813 Metadata* obj = r->metadata_value(); |
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2814 st.print("metadata("); |
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2815 if (obj == NULL) st.print("NULL"); |
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2816 else obj->print_value_on(&st); |
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2817 st.print(")"); |
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2818 return st.as_string(); |
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|
2819 } |
0 | 2820 case relocInfo::virtual_call_type: return "virtual_call"; |
2821 case relocInfo::opt_virtual_call_type: return "optimized virtual_call"; | |
2822 case relocInfo::static_call_type: return "static_call"; | |
2823 case relocInfo::static_stub_type: return "static_stub"; | |
2824 case relocInfo::runtime_call_type: return "runtime_call"; | |
2825 case relocInfo::external_word_type: return "external_word"; | |
2826 case relocInfo::internal_word_type: return "internal_word"; | |
2827 case relocInfo::section_word_type: return "section_word"; | |
2828 case relocInfo::poll_type: return "poll"; | |
2829 case relocInfo::poll_return_type: return "poll_return"; | |
2830 case relocInfo::type_mask: return "type_bit_mask"; | |
2831 } | |
2832 } | |
2833 return have_one ? "other" : NULL; | |
2834 } | |
2835 | |
2836 // Return a the last scope in (begin..end] | |
2837 ScopeDesc* nmethod::scope_desc_in(address begin, address end) { | |
2838 PcDesc* p = pc_desc_near(begin+1); | |
2839 if (p != NULL && p->real_pc(this) <= end) { | |
2840 return new ScopeDesc(this, p->scope_decode_offset(), | |
9707 | 2841 p->obj_decode_offset(), p->should_reexecute(), p->rethrow_exception(), |
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f70b0d9ab095
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diff
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|
2842 p->return_oop()); |
0 | 2843 } |
2844 return NULL; | |
2845 } | |
2846 | |
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2847 void nmethod::print_nmethod_labels(outputStream* stream, address block_begin) const { |
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2848 if (block_begin == entry_point()) stream->print_cr("[Entry Point]"); |
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|
2849 if (block_begin == verified_entry_point()) stream->print_cr("[Verified Entry Point]"); |
9707 | 2850 if (GRAAL_ONLY(_exception_offset >= 0 &&) block_begin == exception_begin()) stream->print_cr("[Exception Handler]"); |
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|
2851 if (block_begin == stub_begin()) stream->print_cr("[Stub Code]"); |
9707 | 2852 if (GRAAL_ONLY(_deoptimize_offset >= 0 &&) block_begin == deopt_handler_begin()) stream->print_cr("[Deopt Handler Code]"); |
1691
4a665be40fd3
6975855: don't emit deopt MH handler in C1 if not required
twisti
parents:
1644
diff
changeset
|
2853 |
4a665be40fd3
6975855: don't emit deopt MH handler in C1 if not required
twisti
parents:
1644
diff
changeset
|
2854 if (has_method_handle_invokes()) |
4a665be40fd3
6975855: don't emit deopt MH handler in C1 if not required
twisti
parents:
1644
diff
changeset
|
2855 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
|
2856 |
1155
4e6abf09f540
6912062: disassembler plugin needs to produce symbolic information in product mode
jrose
parents:
1141
diff
changeset
|
2857 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
|
2858 |
1155
4e6abf09f540
6912062: disassembler plugin needs to produce symbolic information in product mode
jrose
parents:
1141
diff
changeset
|
2859 if (block_begin == entry_point()) { |
4e6abf09f540
6912062: disassembler plugin needs to produce symbolic information in product mode
jrose
parents:
1141
diff
changeset
|
2860 methodHandle m = method(); |
4e6abf09f540
6912062: disassembler plugin needs to produce symbolic information in product mode
jrose
parents:
1141
diff
changeset
|
2861 if (m.not_null()) { |
4e6abf09f540
6912062: disassembler plugin needs to produce symbolic information in product mode
jrose
parents:
1141
diff
changeset
|
2862 stream->print(" # "); |
4e6abf09f540
6912062: disassembler plugin needs to produce symbolic information in product mode
jrose
parents:
1141
diff
changeset
|
2863 m->print_value_on(stream); |
4e6abf09f540
6912062: disassembler plugin needs to produce symbolic information in product mode
jrose
parents:
1141
diff
changeset
|
2864 stream->cr(); |
4e6abf09f540
6912062: disassembler plugin needs to produce symbolic information in product mode
jrose
parents:
1141
diff
changeset
|
2865 } |
4e6abf09f540
6912062: disassembler plugin needs to produce symbolic information in product mode
jrose
parents:
1141
diff
changeset
|
2866 if (m.not_null() && !is_osr_method()) { |
4e6abf09f540
6912062: disassembler plugin needs to produce symbolic information in product mode
jrose
parents:
1141
diff
changeset
|
2867 ResourceMark rm; |
4e6abf09f540
6912062: disassembler plugin needs to produce symbolic information in product mode
jrose
parents:
1141
diff
changeset
|
2868 int sizeargs = m->size_of_parameters(); |
4e6abf09f540
6912062: disassembler plugin needs to produce symbolic information in product mode
jrose
parents:
1141
diff
changeset
|
2869 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
|
2870 VMRegPair* regs = NEW_RESOURCE_ARRAY(VMRegPair, sizeargs); |
4e6abf09f540
6912062: disassembler plugin needs to produce symbolic information in product mode
jrose
parents:
1141
diff
changeset
|
2871 { |
4e6abf09f540
6912062: disassembler plugin needs to produce symbolic information in product mode
jrose
parents:
1141
diff
changeset
|
2872 int sig_index = 0; |
4e6abf09f540
6912062: disassembler plugin needs to produce symbolic information in product mode
jrose
parents:
1141
diff
changeset
|
2873 if (!m->is_static()) |
4e6abf09f540
6912062: disassembler plugin needs to produce symbolic information in product mode
jrose
parents:
1141
diff
changeset
|
2874 sig_bt[sig_index++] = T_OBJECT; // 'this' |
4e6abf09f540
6912062: disassembler plugin needs to produce symbolic information in product mode
jrose
parents:
1141
diff
changeset
|
2875 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
|
2876 BasicType t = ss.type(); |
4e6abf09f540
6912062: disassembler plugin needs to produce symbolic information in product mode
jrose
parents:
1141
diff
changeset
|
2877 sig_bt[sig_index++] = t; |
4e6abf09f540
6912062: disassembler plugin needs to produce symbolic information in product mode
jrose
parents:
1141
diff
changeset
|
2878 if (type2size[t] == 2) { |
4e6abf09f540
6912062: disassembler plugin needs to produce symbolic information in product mode
jrose
parents:
1141
diff
changeset
|
2879 sig_bt[sig_index++] = T_VOID; |
4e6abf09f540
6912062: disassembler plugin needs to produce symbolic information in product mode
jrose
parents:
1141
diff
changeset
|
2880 } else { |
4e6abf09f540
6912062: disassembler plugin needs to produce symbolic information in product mode
jrose
parents:
1141
diff
changeset
|
2881 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
|
2882 } |
4e6abf09f540
6912062: disassembler plugin needs to produce symbolic information in product mode
jrose
parents:
1141
diff
changeset
|
2883 } |
4e6abf09f540
6912062: disassembler plugin needs to produce symbolic information in product mode
jrose
parents:
1141
diff
changeset
|
2884 assert(sig_index == sizeargs, ""); |
4e6abf09f540
6912062: disassembler plugin needs to produce symbolic information in product mode
jrose
parents:
1141
diff
changeset
|
2885 } |
4e6abf09f540
6912062: disassembler plugin needs to produce symbolic information in product mode
jrose
parents:
1141
diff
changeset
|
2886 const char* spname = "sp"; // make arch-specific? |
4e6abf09f540
6912062: disassembler plugin needs to produce symbolic information in product mode
jrose
parents:
1141
diff
changeset
|
2887 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
|
2888 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
|
2889 int tab1 = 14, tab2 = 24; |
4e6abf09f540
6912062: disassembler plugin needs to produce symbolic information in product mode
jrose
parents:
1141
diff
changeset
|
2890 int sig_index = 0; |
4e6abf09f540
6912062: disassembler plugin needs to produce symbolic information in product mode
jrose
parents:
1141
diff
changeset
|
2891 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
|
2892 bool did_old_sp = false; |
4e6abf09f540
6912062: disassembler plugin needs to produce symbolic information in product mode
jrose
parents:
1141
diff
changeset
|
2893 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
|
2894 bool at_this = (arg_index == -1); |
4e6abf09f540
6912062: disassembler plugin needs to produce symbolic information in product mode
jrose
parents:
1141
diff
changeset
|
2895 bool at_old_sp = false; |
4e6abf09f540
6912062: disassembler plugin needs to produce symbolic information in product mode
jrose
parents:
1141
diff
changeset
|
2896 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
|
2897 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
|
2898 if (at_this) |
4e6abf09f540
6912062: disassembler plugin needs to produce symbolic information in product mode
jrose
parents:
1141
diff
changeset
|
2899 stream->print(" # this: "); |
4e6abf09f540
6912062: disassembler plugin needs to produce symbolic information in product mode
jrose
parents:
1141
diff
changeset
|
2900 else |
4e6abf09f540
6912062: disassembler plugin needs to produce symbolic information in product mode
jrose
parents:
1141
diff
changeset
|
2901 stream->print(" # parm%d: ", arg_index); |
4e6abf09f540
6912062: disassembler plugin needs to produce symbolic information in product mode
jrose
parents:
1141
diff
changeset
|
2902 stream->move_to(tab1); |
4e6abf09f540
6912062: disassembler plugin needs to produce symbolic information in product mode
jrose
parents:
1141
diff
changeset
|
2903 VMReg fst = regs[sig_index].first(); |
4e6abf09f540
6912062: disassembler plugin needs to produce symbolic information in product mode
jrose
parents:
1141
diff
changeset
|
2904 VMReg snd = regs[sig_index].second(); |
4e6abf09f540
6912062: disassembler plugin needs to produce symbolic information in product mode
jrose
parents:
1141
diff
changeset
|
2905 if (fst->is_reg()) { |
4e6abf09f540
6912062: disassembler plugin needs to produce symbolic information in product mode
jrose
parents:
1141
diff
changeset
|
2906 stream->print("%s", fst->name()); |
4e6abf09f540
6912062: disassembler plugin needs to produce symbolic information in product mode
jrose
parents:
1141
diff
changeset
|
2907 if (snd->is_valid()) { |
4e6abf09f540
6912062: disassembler plugin needs to produce symbolic information in product mode
jrose
parents:
1141
diff
changeset
|
2908 stream->print(":%s", snd->name()); |
4e6abf09f540
6912062: disassembler plugin needs to produce symbolic information in product mode
jrose
parents:
1141
diff
changeset
|
2909 } |
4e6abf09f540
6912062: disassembler plugin needs to produce symbolic information in product mode
jrose
parents:
1141
diff
changeset
|
2910 } else if (fst->is_stack()) { |
4e6abf09f540
6912062: disassembler plugin needs to produce symbolic information in product mode
jrose
parents:
1141
diff
changeset
|
2911 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
|
2912 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
|
2913 stream->print("[%s+0x%x]", spname, offset); |
4e6abf09f540
6912062: disassembler plugin needs to produce symbolic information in product mode
jrose
parents:
1141
diff
changeset
|
2914 } else { |
4e6abf09f540
6912062: disassembler plugin needs to produce symbolic information in product mode
jrose
parents:
1141
diff
changeset
|
2915 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
|
2916 } |
4e6abf09f540
6912062: disassembler plugin needs to produce symbolic information in product mode
jrose
parents:
1141
diff
changeset
|
2917 stream->print(" "); |
4e6abf09f540
6912062: disassembler plugin needs to produce symbolic information in product mode
jrose
parents:
1141
diff
changeset
|
2918 stream->move_to(tab2); |
4e6abf09f540
6912062: disassembler plugin needs to produce symbolic information in product mode
jrose
parents:
1141
diff
changeset
|
2919 stream->print("= "); |
4e6abf09f540
6912062: disassembler plugin needs to produce symbolic information in product mode
jrose
parents:
1141
diff
changeset
|
2920 if (at_this) { |
4e6abf09f540
6912062: disassembler plugin needs to produce symbolic information in product mode
jrose
parents:
1141
diff
changeset
|
2921 m->method_holder()->print_value_on(stream); |
4e6abf09f540
6912062: disassembler plugin needs to produce symbolic information in product mode
jrose
parents:
1141
diff
changeset
|
2922 } else { |
4e6abf09f540
6912062: disassembler plugin needs to produce symbolic information in product mode
jrose
parents:
1141
diff
changeset
|
2923 bool did_name = false; |
4e6abf09f540
6912062: disassembler plugin needs to produce symbolic information in product mode
jrose
parents:
1141
diff
changeset
|
2924 if (!at_this && ss.is_object()) { |
2177
3582bf76420e
6990754: Use native memory and reference counting to implement SymbolTable
coleenp
parents:
2142
diff
changeset
|
2925 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
|
2926 if (name != NULL) { |
4e6abf09f540
6912062: disassembler plugin needs to produce symbolic information in product mode
jrose
parents:
1141
diff
changeset
|
2927 name->print_value_on(stream); |
4e6abf09f540
6912062: disassembler plugin needs to produce symbolic information in product mode
jrose
parents:
1141
diff
changeset
|
2928 did_name = true; |
4e6abf09f540
6912062: disassembler plugin needs to produce symbolic information in product mode
jrose
parents:
1141
diff
changeset
|
2929 } |
4e6abf09f540
6912062: disassembler plugin needs to produce symbolic information in product mode
jrose
parents:
1141
diff
changeset
|
2930 } |
4e6abf09f540
6912062: disassembler plugin needs to produce symbolic information in product mode
jrose
parents:
1141
diff
changeset
|
2931 if (!did_name) |
4e6abf09f540
6912062: disassembler plugin needs to produce symbolic information in product mode
jrose
parents:
1141
diff
changeset
|
2932 stream->print("%s", type2name(t)); |
4e6abf09f540
6912062: disassembler plugin needs to produce symbolic information in product mode
jrose
parents:
1141
diff
changeset
|
2933 } |
4e6abf09f540
6912062: disassembler plugin needs to produce symbolic information in product mode
jrose
parents:
1141
diff
changeset
|
2934 if (at_old_sp) { |
4e6abf09f540
6912062: disassembler plugin needs to produce symbolic information in product mode
jrose
parents:
1141
diff
changeset
|
2935 stream->print(" (%s of caller)", spname); |
4e6abf09f540
6912062: disassembler plugin needs to produce symbolic information in product mode
jrose
parents:
1141
diff
changeset
|
2936 did_old_sp = true; |
4e6abf09f540
6912062: disassembler plugin needs to produce symbolic information in product mode
jrose
parents:
1141
diff
changeset
|
2937 } |
4e6abf09f540
6912062: disassembler plugin needs to produce symbolic information in product mode
jrose
parents:
1141
diff
changeset
|
2938 stream->cr(); |
4e6abf09f540
6912062: disassembler plugin needs to produce symbolic information in product mode
jrose
parents:
1141
diff
changeset
|
2939 sig_index += type2size[t]; |
4e6abf09f540
6912062: disassembler plugin needs to produce symbolic information in product mode
jrose
parents:
1141
diff
changeset
|
2940 arg_index += 1; |
4e6abf09f540
6912062: disassembler plugin needs to produce symbolic information in product mode
jrose
parents:
1141
diff
changeset
|
2941 if (!at_this) ss.next(); |
4e6abf09f540
6912062: disassembler plugin needs to produce symbolic information in product mode
jrose
parents:
1141
diff
changeset
|
2942 } |
4e6abf09f540
6912062: disassembler plugin needs to produce symbolic information in product mode
jrose
parents:
1141
diff
changeset
|
2943 if (!did_old_sp) { |
4e6abf09f540
6912062: disassembler plugin needs to produce symbolic information in product mode
jrose
parents:
1141
diff
changeset
|
2944 stream->print(" # "); |
4e6abf09f540
6912062: disassembler plugin needs to produce symbolic information in product mode
jrose
parents:
1141
diff
changeset
|
2945 stream->move_to(tab1); |
4e6abf09f540
6912062: disassembler plugin needs to produce symbolic information in product mode
jrose
parents:
1141
diff
changeset
|
2946 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
|
2947 stream->print(" (%s of caller)", spname); |
4e6abf09f540
6912062: disassembler plugin needs to produce symbolic information in product mode
jrose
parents:
1141
diff
changeset
|
2948 stream->cr(); |
4e6abf09f540
6912062: disassembler plugin needs to produce symbolic information in product mode
jrose
parents:
1141
diff
changeset
|
2949 } |
4e6abf09f540
6912062: disassembler plugin needs to produce symbolic information in product mode
jrose
parents:
1141
diff
changeset
|
2950 } |
4e6abf09f540
6912062: disassembler plugin needs to produce symbolic information in product mode
jrose
parents:
1141
diff
changeset
|
2951 } |
4e6abf09f540
6912062: disassembler plugin needs to produce symbolic information in product mode
jrose
parents:
1141
diff
changeset
|
2952 } |
4e6abf09f540
6912062: disassembler plugin needs to produce symbolic information in product mode
jrose
parents:
1141
diff
changeset
|
2953 |
0 | 2954 void nmethod::print_code_comment_on(outputStream* st, int column, u_char* begin, u_char* end) { |
2955 // First, find an oopmap in (begin, end]. | |
2956 // We use the odd half-closed interval so that oop maps and scope descs | |
2957 // which are tied to the byte after a call are printed with the call itself. | |
1748 | 2958 address base = code_begin(); |
0 | 2959 OopMapSet* oms = oop_maps(); |
2960 if (oms != NULL) { | |
2961 for (int i = 0, imax = oms->size(); i < imax; i++) { | |
2962 OopMap* om = oms->at(i); | |
2963 address pc = base + om->offset(); | |
2964 if (pc > begin) { | |
2965 if (pc <= end) { | |
100
c7c777385a15
6667042: PrintAssembly option does not work without special plugin
jrose
parents:
30
diff
changeset
|
2966 st->move_to(column); |
c7c777385a15
6667042: PrintAssembly option does not work without special plugin
jrose
parents:
30
diff
changeset
|
2967 st->print("; "); |
c7c777385a15
6667042: PrintAssembly option does not work without special plugin
jrose
parents:
30
diff
changeset
|
2968 om->print_on(st); |
0 | 2969 } |
2970 break; | |
2971 } | |
2972 } | |
2973 } | |
100
c7c777385a15
6667042: PrintAssembly option does not work without special plugin
jrose
parents:
30
diff
changeset
|
2974 |
c7c777385a15
6667042: PrintAssembly option does not work without special plugin
jrose
parents:
30
diff
changeset
|
2975 // Print any debug info present at this pc. |
0 | 2976 ScopeDesc* sd = scope_desc_in(begin, end); |
2977 if (sd != NULL) { | |
100
c7c777385a15
6667042: PrintAssembly option does not work without special plugin
jrose
parents:
30
diff
changeset
|
2978 st->move_to(column); |
0 | 2979 if (sd->bci() == SynchronizationEntryBCI) { |
2980 st->print(";*synchronization entry"); | |
2981 } else { | |
6725
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6266
diff
changeset
|
2982 if (sd->method() == NULL) { |
100
c7c777385a15
6667042: PrintAssembly option does not work without special plugin
jrose
parents:
30
diff
changeset
|
2983 st->print("method is NULL"); |
0 | 2984 } else if (sd->method()->is_native()) { |
100
c7c777385a15
6667042: PrintAssembly option does not work without special plugin
jrose
parents:
30
diff
changeset
|
2985 st->print("method is native"); |
0 | 2986 } else { |
2142 | 2987 Bytecodes::Code bc = sd->method()->java_code_at(sd->bci()); |
0 | 2988 st->print(";*%s", Bytecodes::name(bc)); |
2989 switch (bc) { | |
2990 case Bytecodes::_invokevirtual: | |
2991 case Bytecodes::_invokespecial: | |
2992 case Bytecodes::_invokestatic: | |
2993 case Bytecodes::_invokeinterface: | |
2994 { | |
2142 | 2995 Bytecode_invoke invoke(sd->method(), sd->bci()); |
0 | 2996 st->print(" "); |
2142 | 2997 if (invoke.name() != NULL) |
2998 invoke.name()->print_symbol_on(st); | |
0 | 2999 else |
3000 st->print("<UNKNOWN>"); | |
3001 break; | |
3002 } | |
3003 case Bytecodes::_getfield: | |
3004 case Bytecodes::_putfield: | |
3005 case Bytecodes::_getstatic: | |
3006 case Bytecodes::_putstatic: | |
3007 { | |
2142 | 3008 Bytecode_field field(sd->method(), sd->bci()); |
0 | 3009 st->print(" "); |
2142 | 3010 if (field.name() != NULL) |
3011 field.name()->print_symbol_on(st); | |
0 | 3012 else |
3013 st->print("<UNKNOWN>"); | |
3014 } | |
3015 } | |
3016 } | |
3017 } | |
100
c7c777385a15
6667042: PrintAssembly option does not work without special plugin
jrose
parents:
30
diff
changeset
|
3018 |
0 | 3019 // Print all scopes |
3020 for (;sd != NULL; sd = sd->sender()) { | |
100
c7c777385a15
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3021 st->move_to(column); |
0 | 3022 st->print("; -"); |
6725
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3023 if (sd->method() == NULL) { |
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3024 st->print("method is NULL"); |
0 | 3025 } else { |
3026 sd->method()->print_short_name(st); | |
3027 } | |
3028 int lineno = sd->method()->line_number_from_bci(sd->bci()); | |
3029 if (lineno != -1) { | |
3030 st->print("@%d (line %d)", sd->bci(), lineno); | |
3031 } else { | |
3032 st->print("@%d", sd->bci()); | |
3033 } | |
3034 st->cr(); | |
3035 } | |
3036 } | |
3037 | |
3038 // Print relocation information | |
3039 const char* str = reloc_string_for(begin, end); | |
3040 if (str != NULL) { | |
3041 if (sd != NULL) st->cr(); | |
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3042 st->move_to(column); |
0 | 3043 st->print("; {%s}", str); |
3044 } | |
1748 | 3045 int cont_offset = ImplicitExceptionTable(this).at(begin - code_begin()); |
0 | 3046 if (cont_offset != 0) { |
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3047 st->move_to(column); |
1748 | 3048 st->print("; implicit exception: dispatches to " INTPTR_FORMAT, code_begin() + cont_offset); |
0 | 3049 } |
3050 | |
3051 } | |
3052 | |
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3053 #ifndef PRODUCT |
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3054 |
0 | 3055 void nmethod::print_value_on(outputStream* st) const { |
2405
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3056 st->print("nmethod"); |
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3057 print_on(st, NULL); |
0 | 3058 } |
3059 | |
3060 void nmethod::print_calls(outputStream* st) { | |
3061 RelocIterator iter(this); | |
3062 while (iter.next()) { | |
3063 switch (iter.type()) { | |
3064 case relocInfo::virtual_call_type: | |
3065 case relocInfo::opt_virtual_call_type: { | |
3066 VerifyMutexLocker mc(CompiledIC_lock); | |
3067 CompiledIC_at(iter.reloc())->print(); | |
3068 break; | |
3069 } | |
3070 case relocInfo::static_call_type: | |
3071 st->print_cr("Static call at " INTPTR_FORMAT, iter.reloc()->addr()); | |
3072 compiledStaticCall_at(iter.reloc())->print(); | |
3073 break; | |
3074 } | |
3075 } | |
3076 } | |
3077 | |
3078 void nmethod::print_handler_table() { | |
3079 ExceptionHandlerTable(this).print(); | |
3080 } | |
3081 | |
3082 void nmethod::print_nul_chk_table() { | |
1748 | 3083 ImplicitExceptionTable(this).print(code_begin()); |
0 | 3084 } |
3085 | |
3086 void nmethod::print_statistics() { | |
3087 ttyLocker ttyl; | |
3088 if (xtty != NULL) xtty->head("statistics type='nmethod'"); | |
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3089 native_nmethod_stats.print_native_nmethod_stats(); |
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3090 #ifdef COMPILER1 |
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3091 c1_java_nmethod_stats.print_nmethod_stats("C1"); |
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3092 #endif |
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3093 #ifdef COMPILER2 |
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3094 c2_java_nmethod_stats.print_nmethod_stats("C2"); |
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3095 #endif |
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3096 #ifdef GRAAL |
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3097 graal_java_nmethod_stats.print_nmethod_stats("Graal"); |
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3098 #endif |
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ca33948fb804
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3099 unknown_java_nmethod_stats.print_nmethod_stats("Unknown"); |
0 | 3100 DebugInformationRecorder::print_statistics(); |
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3101 pc_nmethod_stats.print_pc_stats(); |
0 | 3102 Dependencies::print_statistics(); |
3103 if (xtty != NULL) xtty->tail("statistics"); | |
3104 } | |
3105 #endif // PRODUCT |